2420 files changed, 70111 insertions, 44332 deletions

diff --git a/Documentation/ABI/testing/sysfs-class-mtd b/Documentation/ABI/testing/sysfs-class-mtd
index 3b5c3bca9186..f34e592301d1 100644
--- a/Documentation/ABI/testing/sysfs-class-mtd
+++ b/Documentation/ABI/testing/sysfs-class-mtd
@@ -229,6 +229,6 @@ KernelVersion:	4.1
 Contact:	linux-mtd@lists.infradead.org
 Description:
 		For a partition, the offset of that partition from the start
-		of the master device in bytes. This attribute is absent on
-		main devices, so it can be used to distinguish between
-		partitions and devices that aren't partitions.
+		of the parent (another partition or a flash device) in bytes.
+		This attribute is absent on flash devices, so it can be used
+		to distinguish them from partitions.
diff --git a/Documentation/DMA-API-HOWTO.txt b/Documentation/DMA-API-HOWTO.txt
index 4ed388356898..f0cc3f772265 100644
--- a/Documentation/DMA-API-HOWTO.txt
+++ b/Documentation/DMA-API-HOWTO.txt
@@ -1,22 +1,24 @@
-		     Dynamic DMA mapping Guide
-		     =========================
+=========================
+Dynamic DMA mapping Guide
+=========================
 
-		 David S. Miller <davem@redhat.com>
-		 Richard Henderson <rth@cygnus.com>
-		  Jakub Jelinek <jakub@redhat.com>
+:Author: David S. Miller <davem@redhat.com>
+:Author: Richard Henderson <rth@cygnus.com>
+:Author: Jakub Jelinek <jakub@redhat.com>
 
 This is a guide to device driver writers on how to use the DMA API
 with example pseudo-code.  For a concise description of the API, see
 DMA-API.txt.
 
-                       CPU and DMA addresses
+CPU and DMA addresses
+=====================
 
 There are several kinds of addresses involved in the DMA API, and it's
 important to understand the differences.
 
 The kernel normally uses virtual addresses.  Any address returned by
 kmalloc(), vmalloc(), and similar interfaces is a virtual address and can
-be stored in a "void *".
+be stored in a ``void *``.
 
 The virtual memory system (TLB, page tables, etc.) translates virtual
 addresses to CPU physical addresses, which are stored as "phys_addr_t" or
@@ -37,7 +39,7 @@ be restricted to a subset of that space.  For example, even if a system
 supports 64-bit addresses for main memory and PCI BARs, it may use an IOMMU
 so devices only need to use 32-bit DMA addresses.
 
-Here's a picture and some examples:
+Here's a picture and some examples::
 
                CPU                  CPU                  Bus
              Virtual              Physical             Address
@@ -98,15 +100,16 @@ microprocessor architecture. You should use the DMA API rather than the
 bus-specific DMA API, i.e., use the dma_map_*() interfaces rather than the
 pci_map_*() interfaces.
 
-First of all, you should make sure
+First of all, you should make sure::
 
-#include <linux/dma-mapping.h>
+	#include <linux/dma-mapping.h>
 
 is in your driver, which provides the definition of dma_addr_t.  This type
 can hold any valid DMA address for the platform and should be used
 everywhere you hold a DMA address returned from the DMA mapping functions.
 
-			 What memory is DMA'able?
+What memory is DMA'able?
+========================
 
 The first piece of information you must know is what kernel memory can
 be used with the DMA mapping facilities.  There has been an unwritten
@@ -143,7 +146,8 @@ What about block I/O and networking buffers?  The block I/O and
 networking subsystems make sure that the buffers they use are valid
 for you to DMA from/to.
 
-			DMA addressing limitations
+DMA addressing limitations
+==========================
 
 Does your device have any DMA addressing limitations?  For example, is
 your device only capable of driving the low order 24-bits of address?
@@ -166,7 +170,7 @@ style to do this even if your device holds the default setting,
 because this shows that you did think about these issues wrt. your
 device.
 
-The query is performed via a call to dma_set_mask_and_coherent():
+The query is performed via a call to dma_set_mask_and_coherent()::
 
 	int dma_set_mask_and_coherent(struct device *dev, u64 mask);
 
@@ -175,12 +179,12 @@ If you have some special requirements, then the following two separate
 queries can be used instead:
 
 	The query for streaming mappings is performed via a call to
-	dma_set_mask():
+	dma_set_mask()::
 
 		int dma_set_mask(struct device *dev, u64 mask);
 
 	The query for consistent allocations is performed via a call
-	to dma_set_coherent_mask():
+	to dma_set_coherent_mask()::
 
 		int dma_set_coherent_mask(struct device *dev, u64 mask);
 
@@ -209,7 +213,7 @@ of your driver reports that performance is bad or that the device is not
 even detected, you can ask them for the kernel messages to find out
 exactly why.
 
-The standard 32-bit addressing device would do something like this:
+The standard 32-bit addressing device would do something like this::
 
 	if (dma_set_mask_and_coherent(dev, DMA_BIT_MASK(32))) {
 		dev_warn(dev, "mydev: No suitable DMA available\n");
@@ -225,7 +229,7 @@ than 64-bit addressing.  For example, Sparc64 PCI SAC addressing is
 more efficient than DAC addressing.
 
 Here is how you would handle a 64-bit capable device which can drive
-all 64-bits when accessing streaming DMA:
+all 64-bits when accessing streaming DMA::
 
 	int using_dac;
 
@@ -239,7 +243,7 @@ all 64-bits when accessing streaming DMA:
 	}
 
 If a card is capable of using 64-bit consistent allocations as well,
-the case would look like this:
+the case would look like this::
 
 	int using_dac, consistent_using_dac;
 
@@ -260,7 +264,7 @@ uses consistent allocations, one would have to check the return value from
 dma_set_coherent_mask().
 
 Finally, if your device can only drive the low 24-bits of
-address you might do something like:
+address you might do something like::
 
 	if (dma_set_mask(dev, DMA_BIT_MASK(24))) {
 		dev_warn(dev, "mydev: 24-bit DMA addressing not available\n");
@@ -280,7 +284,7 @@ only provide the functionality which the machine can handle.  It
 is important that the last call to dma_set_mask() be for the
 most specific mask.
 
-Here is pseudo-code showing how this might be done:
+Here is pseudo-code showing how this might be done::
 
 	#define PLAYBACK_ADDRESS_BITS	DMA_BIT_MASK(32)
 	#define RECORD_ADDRESS_BITS	DMA_BIT_MASK(24)
@@ -308,7 +312,8 @@ A sound card was used as an example here because this genre of PCI
 devices seems to be littered with ISA chips given a PCI front end,
 and thus retaining the 16MB DMA addressing limitations of ISA.
 
-			Types of DMA mappings
+Types of DMA mappings
+=====================
 
 There are two types of DMA mappings:
 
@@ -336,12 +341,14 @@ There are two types of DMA mappings:
   to memory is immediately visible to the device, and vice
   versa.  Consistent mappings guarantee this.
 
-  IMPORTANT: Consistent DMA memory does not preclude the usage of
-             proper memory barriers.  The CPU may reorder stores to
+  .. important::
+
+	     Consistent DMA memory does not preclude the usage of
+	     proper memory barriers.  The CPU may reorder stores to
 	     consistent memory just as it may normal memory.  Example:
 	     if it is important for the device to see the first word
 	     of a descriptor updated before the second, you must do
-	     something like:
+	     something like::
 
 		desc->word0 = address;
 		wmb();
@@ -377,16 +384,17 @@ Also, systems with caches that aren't DMA-coherent will work better
 when the underlying buffers don't share cache lines with other data.
 
 
-		 Using Consistent DMA mappings.
+Using Consistent DMA mappings
+=============================
 
 To allocate and map large (PAGE_SIZE or so) consistent DMA regions,
-you should do:
+you should do::
 
 	dma_addr_t dma_handle;
 
 	cpu_addr = dma_alloc_coherent(dev, size, &dma_handle, gfp);
 
-where device is a struct device *. This may be called in interrupt
+where device is a ``struct device *``. This may be called in interrupt
 context with the GFP_ATOMIC flag.
 
 Size is the length of the region you want to allocate, in bytes.
@@ -415,7 +423,7 @@ exists (for example) to guarantee that if you allocate a chunk
 which is smaller than or equal to 64 kilobytes, the extent of the
 buffer you receive will not cross a 64K boundary.
 
-To unmap and free such a DMA region, you call:
+To unmap and free such a DMA region, you call::
 
 	dma_free_coherent(dev, size, cpu_addr, dma_handle);
 
@@ -430,7 +438,7 @@ a kmem_cache, but it uses dma_alloc_coherent(), not __get_free_pages().
 Also, it understands common hardware constraints for alignment,
 like queue heads needing to be aligned on N byte boundaries.
 
-Create a dma_pool like this:
+Create a dma_pool like this::
 
 	struct dma_pool *pool;
 
@@ -444,7 +452,7 @@ pass 0 for boundary; passing 4096 says memory allocated from this pool
 must not cross 4KByte boundaries (but at that time it may be better to
 use dma_alloc_coherent() directly instead).
 
-Allocate memory from a DMA pool like this:
+Allocate memory from a DMA pool like this::
 
 	cpu_addr = dma_pool_alloc(pool, flags, &dma_handle);
 
@@ -452,7 +460,7 @@ flags are GFP_KERNEL if blocking is permitted (not in_interrupt nor
 holding SMP locks), GFP_ATOMIC otherwise.  Like dma_alloc_coherent(),
 this returns two values, cpu_addr and dma_handle.
 
-Free memory that was allocated from a dma_pool like this:
+Free memory that was allocated from a dma_pool like this::
 
 	dma_pool_free(pool, cpu_addr, dma_handle);
 
@@ -460,7 +468,7 @@ where pool is what you passed to dma_pool_alloc(), and cpu_addr and
 dma_handle are the values dma_pool_alloc() returned. This function
 may be called in interrupt context.
 
-Destroy a dma_pool by calling:
+Destroy a dma_pool by calling::
 
 	dma_pool_destroy(pool);
 
@@ -468,11 +476,12 @@ Make sure you've called dma_pool_free() for all memory allocated
 from a pool before you destroy the pool. This function may not
 be called in interrupt context.
 
-			DMA Direction
+DMA Direction
+=============
 
 The interfaces described in subsequent portions of this document
 take a DMA direction argument, which is an integer and takes on
-one of the following values:
+one of the following values::
 
  DMA_BIDIRECTIONAL
  DMA_TO_DEVICE
@@ -521,14 +530,15 @@ packets, map/unmap them with the DMA_TO_DEVICE direction
 specifier.  For receive packets, just the opposite, map/unmap them
 with the DMA_FROM_DEVICE direction specifier.
 
-		  Using Streaming DMA mappings
+Using Streaming DMA mappings
+============================
 
 The streaming DMA mapping routines can be called from interrupt
 context.  There are two versions of each map/unmap, one which will
 map/unmap a single memory region, and one which will map/unmap a
 scatterlist.
 
-To map a single region, you do:
+To map a single region, you do::
 
 	struct device *dev = &my_dev->dev;
 	dma_addr_t dma_handle;
@@ -545,7 +555,7 @@ To map a single region, you do:
 		goto map_error_handling;
 	}
 
-and to unmap it:
+and to unmap it::
 
 	dma_unmap_single(dev, dma_handle, size, direction);
 
@@ -563,7 +573,7 @@ Using CPU pointers like this for single mappings has a disadvantage:
 you cannot reference HIGHMEM memory in this way.  Thus, there is a
 map/unmap interface pair akin to dma_{map,unmap}_single().  These
 interfaces deal with page/offset pairs instead of CPU pointers.
-Specifically:
+Specifically::
 
 	struct device *dev = &my_dev->dev;
 	dma_addr_t dma_handle;
@@ -593,7 +603,7 @@ error as outlined under the dma_map_single() discussion.
 You should call dma_unmap_page() when the DMA activity is finished, e.g.,
 from the interrupt which told you that the DMA transfer is done.
 
-With scatterlists, you map a region gathered from several regions by:
+With scatterlists, you map a region gathered from several regions by::
 
 	int i, count = dma_map_sg(dev, sglist, nents, direction);
 	struct scatterlist *sg;
@@ -617,16 +627,18 @@ Then you should loop count times (note: this can be less than nents times)
 and use sg_dma_address() and sg_dma_len() macros where you previously
 accessed sg->address and sg->length as shown above.
 
-To unmap a scatterlist, just call:
+To unmap a scatterlist, just call::
 
 	dma_unmap_sg(dev, sglist, nents, direction);
 
 Again, make sure DMA activity has already finished.
 
-PLEASE NOTE:  The 'nents' argument to the dma_unmap_sg call must be
-              the _same_ one you passed into the dma_map_sg call,
-	      it should _NOT_ be the 'count' value _returned_ from the
-              dma_map_sg call.
+.. note::
+
+	The 'nents' argument to the dma_unmap_sg call must be
+	the _same_ one you passed into the dma_map_sg call,
+	it should _NOT_ be the 'count' value _returned_ from the
+	dma_map_sg call.
 
 Every dma_map_{single,sg}() call should have its dma_unmap_{single,sg}()
 counterpart, because the DMA address space is a shared resource and
@@ -638,11 +650,11 @@ properly in order for the CPU and device to see the most up-to-date and
 correct copy of the DMA buffer.
 
 So, firstly, just map it with dma_map_{single,sg}(), and after each DMA
-transfer call either:
+transfer call either::
 
 	dma_sync_single_for_cpu(dev, dma_handle, size, direction);
 
-or:
+or::
 
 	dma_sync_sg_for_cpu(dev, sglist, nents, direction);
 
@@ -650,17 +662,19 @@ as appropriate.
 
 Then, if you wish to let the device get at the DMA area again,
 finish accessing the data with the CPU, and then before actually
-giving the buffer to the hardware call either:
+giving the buffer to the hardware call either::
 
 	dma_sync_single_for_device(dev, dma_handle, size, direction);
 
-or:
+or::
 
 	dma_sync_sg_for_device(dev, sglist, nents, direction);
 
 as appropriate.
 
-PLEASE NOTE:  The 'nents' argument to dma_sync_sg_for_cpu() and
+.. note::
+
+	      The 'nents' argument to dma_sync_sg_for_cpu() and
 	      dma_sync_sg_for_device() must be the same passed to
 	      dma_map_sg(). It is _NOT_ the count returned by
 	      dma_map_sg().
@@ -671,7 +685,7 @@ dma_map_*() call till dma_unmap_*(), then you don't have to call the
 dma_sync_*() routines at all.
 
 Here is pseudo code which shows a situation in which you would need
-to use the dma_sync_*() interfaces.
+to use the dma_sync_*() interfaces::
 
 	my_card_setup_receive_buffer(struct my_card *cp, char *buffer, int len)
 	{
@@ -747,7 +761,8 @@ is planned to completely remove virt_to_bus() and bus_to_virt() as
 they are entirely deprecated.  Some ports already do not provide these
 as it is impossible to correctly support them.
 
-			Handling Errors
+Handling Errors
+===============
 
 DMA address space is limited on some architectures and an allocation
 failure can be determined by:
@@ -755,7 +770,7 @@ failure can be determined by:
 - checking if dma_alloc_coherent() returns NULL or dma_map_sg returns 0
 
 - checking the dma_addr_t returned from dma_map_single() and dma_map_page()
-  by using dma_mapping_error():
+  by using dma_mapping_error()::
 
 	dma_addr_t dma_handle;
 
@@ -773,7 +788,8 @@ failure can be determined by:
   of a multiple page mapping attempt. These example are applicable to
   dma_map_page() as well.
 
-Example 1:
+Example 1::
+
 	dma_addr_t dma_handle1;
 	dma_addr_t dma_handle2;
 
@@ -802,8 +818,12 @@ Example 1:
 		dma_unmap_single(dma_handle1);
 	map_error_handling1:
 
-Example 2: (if buffers are allocated in a loop, unmap all mapped buffers when
-	    mapping error is detected in the middle)
+Example 2::
+
+	/*
+	 * if buffers are allocated in a loop, unmap all mapped buffers when
+	 * mapping error is detected in the middle
+	 */
 
 	dma_addr_t dma_addr;
 	dma_addr_t array[DMA_BUFFERS];
@@ -846,7 +866,8 @@ SCSI drivers must return SCSI_MLQUEUE_HOST_BUSY if the DMA mapping
 fails in the queuecommand hook. This means that the SCSI subsystem
 passes the command to the driver again later.
 
-		Optimizing Unmap State Space Consumption
+Optimizing Unmap State Space Consumption
+========================================
 
 On many platforms, dma_unmap_{single,page}() is simply a nop.
 Therefore, keeping track of the mapping address and length is a waste
@@ -858,7 +879,7 @@ Actually, instead of describing the macros one by one, we'll
 transform some example code.
 
 1) Use DEFINE_DMA_UNMAP_{ADDR,LEN} in state saving structures.
-   Example, before:
+   Example, before::
 
 	struct ring_state {
 		struct sk_buff *skb;
@@ -866,7 +887,7 @@ transform some example code.
 		__u32 len;
 	};
 
-   after:
+   after::
 
 	struct ring_state {
 		struct sk_buff *skb;
@@ -875,23 +896,23 @@ transform some example code.
 	};
 
 2) Use dma_unmap_{addr,len}_set() to set these values.
-   Example, before:
+   Example, before::
 
 	ringp->mapping = FOO;
 	ringp->len = BAR;
 
-   after:
+   after::
 
 	dma_unmap_addr_set(ringp, mapping, FOO);
 	dma_unmap_len_set(ringp, len, BAR);
 
 3) Use dma_unmap_{addr,len}() to access these values.
-   Example, before:
+   Example, before::
 
 	dma_unmap_single(dev, ringp->mapping, ringp->len,
 			 DMA_FROM_DEVICE);
 
-   after:
+   after::
 
 	dma_unmap_single(dev,
 			 dma_unmap_addr(ringp, mapping),
@@ -902,7 +923,8 @@ It really should be self-explanatory.  We treat the ADDR and LEN
 separately, because it is possible for an implementation to only
 need the address in order to perform the unmap operation.
 
-			Platform Issues
+Platform Issues
+===============
 
 If you are just writing drivers for Linux and do not maintain
 an architecture port for the kernel, you can safely skip down
@@ -928,12 +950,13 @@ to "Closing".
    alignment constraints (e.g. the alignment constraints about 64-bit
    objects).
 
-			   Closing
+Closing
+=======
 
 This document, and the API itself, would not be in its current
 form without the feedback and suggestions from numerous individuals.
 We would like to specifically mention, in no particular order, the
-following people:
+following people::
 
 	Russell King <rmk@arm.linux.org.uk>
 	Leo Dagum <dagum@barrel.engr.sgi.com>
diff --git a/Documentation/DMA-API.txt b/Documentation/DMA-API.txt
index 71200dfa0922..45b29326d719 100644
--- a/Documentation/DMA-API.txt
+++ b/Documentation/DMA-API.txt
@@ -1,7 +1,8 @@
-               Dynamic DMA mapping using the generic device
-               ============================================
+============================================
+Dynamic DMA mapping using the generic device
+============================================
 
-        James E.J. Bottomley <James.Bottomley@HansenPartnership.com>
+:Author: James E.J. Bottomley <James.Bottomley@HansenPartnership.com>
 
 This document describes the DMA API.  For a more gentle introduction
 of the API (and actual examples), see Documentation/DMA-API-HOWTO.txt.
@@ -12,10 +13,10 @@ machines.  Unless you know that your driver absolutely has to support
 non-consistent platforms (this is usually only legacy platforms) you
 should only use the API described in part I.
 
-Part I - dma_ API
--------------------------------------
+Part I - dma_API
+----------------
 
-To get the dma_ API, you must #include <linux/dma-mapping.h>.  This
+To get the dma_API, you must #include <linux/dma-mapping.h>.  This
 provides dma_addr_t and the interfaces described below.
 
 A dma_addr_t can hold any valid DMA address for the platform.  It can be
@@ -26,9 +27,11 @@ address space and the DMA address space.
 Part Ia - Using large DMA-coherent buffers
 ------------------------------------------
 
-void *
-dma_alloc_coherent(struct device *dev, size_t size,
-			     dma_addr_t *dma_handle, gfp_t flag)
+::
+
+	void *
+	dma_alloc_coherent(struct device *dev, size_t size,
+			   dma_addr_t *dma_handle, gfp_t flag)
 
 Consistent memory is memory for which a write by either the device or
 the processor can immediately be read by the processor or device
@@ -51,20 +54,24 @@ consolidate your requests for consistent memory as much as possible.
 The simplest way to do that is to use the dma_pool calls (see below).
 
 The flag parameter (dma_alloc_coherent() only) allows the caller to
-specify the GFP_ flags (see kmalloc()) for the allocation (the
+specify the ``GFP_`` flags (see kmalloc()) for the allocation (the
 implementation may choose to ignore flags that affect the location of
 the returned memory, like GFP_DMA).
 
-void *
-dma_zalloc_coherent(struct device *dev, size_t size,
-			     dma_addr_t *dma_handle, gfp_t flag)
+::
+
+	void *
+	dma_zalloc_coherent(struct device *dev, size_t size,
+			    dma_addr_t *dma_handle, gfp_t flag)
 
 Wraps dma_alloc_coherent() and also zeroes the returned memory if the
 allocation attempt succeeded.
 
-void
-dma_free_coherent(struct device *dev, size_t size, void *cpu_addr,
-			   dma_addr_t dma_handle)
+::
+
+	void
+	dma_free_coherent(struct device *dev, size_t size, void *cpu_addr,
+			  dma_addr_t dma_handle)
 
 Free a region of consistent memory you previously allocated.  dev,
 size and dma_handle must all be the same as those passed into
@@ -78,7 +85,7 @@ may only be called with IRQs enabled.
 Part Ib - Using small DMA-coherent buffers
 ------------------------------------------
 
-To get this part of the dma_ API, you must #include <linux/dmapool.h>
+To get this part of the dma_API, you must #include <linux/dmapool.h>
 
 Many drivers need lots of small DMA-coherent memory regions for DMA
 descriptors or I/O buffers.  Rather than allocating in units of a page
@@ -88,6 +95,8 @@ not __get_free_pages().  Also, they understand common hardware constraints
 for alignment, like queue heads needing to be aligned on N-byte boundaries.
 
 
+::
+
 	struct dma_pool *
 	dma_pool_create(const char *name, struct device *dev,
 			size_t size, size_t align, size_t alloc);
@@ -103,16 +112,21 @@ in bytes, and must be a power of two).  If your device has no boundary
 crossing restrictions, pass 0 for alloc; passing 4096 says memory allocated
 from this pool must not cross 4KByte boundaries.
 
+::
 
-	void *dma_pool_zalloc(struct dma_pool *pool, gfp_t mem_flags,
-			      dma_addr_t *handle)
+	void *
+	dma_pool_zalloc(struct dma_pool *pool, gfp_t mem_flags,
+		        dma_addr_t *handle)
 
 Wraps dma_pool_alloc() and also zeroes the returned memory if the
 allocation attempt succeeded.
 
 
-	void *dma_pool_alloc(struct dma_pool *pool, gfp_t gfp_flags,
-			dma_addr_t *dma_handle);
+::
+
+	void *
+	dma_pool_alloc(struct dma_pool *pool, gfp_t gfp_flags,
+		       dma_addr_t *dma_handle);
 
 This allocates memory from the pool; the returned memory will meet the
 size and alignment requirements specified at creation time.  Pass
@@ -122,16 +136,20 @@ blocking.  Like dma_alloc_coherent(), this returns two values:  an
 address usable by the CPU, and the DMA address usable by the pool's
 device.
 
+::
 
-	void dma_pool_free(struct dma_pool *pool, void *vaddr,
-			dma_addr_t addr);
+	void
+	dma_pool_free(struct dma_pool *pool, void *vaddr,
+		      dma_addr_t addr);
 
 This puts memory back into the pool.  The pool is what was passed to
 dma_pool_alloc(); the CPU (vaddr) and DMA addresses are what
 were returned when that routine allocated the memory being freed.
 
+::
 
-	void dma_pool_destroy(struct dma_pool *pool);
+	void
+	dma_pool_destroy(struct dma_pool *pool);
 
 dma_pool_destroy() frees the resources of the pool.  It must be
 called in a context which can sleep.  Make sure you've freed all allocated
@@ -141,32 +159,40 @@ memory back to the pool before you destroy it.
 Part Ic - DMA addressing limitations
 ------------------------------------
 
-int
-dma_set_mask_and_coherent(struct device *dev, u64 mask)
+::
+
+	int
+	dma_set_mask_and_coherent(struct device *dev, u64 mask)
 
 Checks to see if the mask is possible and updates the device
 streaming and coherent DMA mask parameters if it is.
 
 Returns: 0 if successful and a negative error if not.
 
-int
-dma_set_mask(struct device *dev, u64 mask)
+::
+
+	int
+	dma_set_mask(struct device *dev, u64 mask)
 
 Checks to see if the mask is possible and updates the device
 parameters if it is.
 
 Returns: 0 if successful and a negative error if not.
 
-int
-dma_set_coherent_mask(struct device *dev, u64 mask)
+::
+
+	int
+	dma_set_coherent_mask(struct device *dev, u64 mask)
 
 Checks to see if the mask is possible and updates the device
 parameters if it is.
 
 Returns: 0 if successful and a negative error if not.
 
-u64
-dma_get_required_mask(struct device *dev)
+::
+
+	u64
+	dma_get_required_mask(struct device *dev)
 
 This API returns the mask that the platform requires to
 operate efficiently.  Usually this means the returned mask
@@ -182,94 +208,107 @@ call to set the mask to the value returned.
 Part Id - Streaming DMA mappings
 --------------------------------
 
-dma_addr_t
-dma_map_single(struct device *dev, void *cpu_addr, size_t size,
-		      enum dma_data_direction direction)
+::
+
+	dma_addr_t
+	dma_map_single(struct device *dev, void *cpu_addr, size_t size,
+		       enum dma_data_direction direction)
 
 Maps a piece of processor virtual memory so it can be accessed by the
 device and returns the DMA address of the memory.
 
 The direction for both APIs may be converted freely by casting.
-However the dma_ API uses a strongly typed enumerator for its
+However the dma_API uses a strongly typed enumerator for its
 direction:
 
+======================= =============================================
 DMA_NONE		no direction (used for debugging)
 DMA_TO_DEVICE		data is going from the memory to the device
 DMA_FROM_DEVICE		data is coming from the device to the memory
 DMA_BIDIRECTIONAL	direction isn't known
+======================= =============================================
+
+.. note::
+
+	Not all memory regions in a machine can be mapped by this API.
+	Further, contiguous kernel virtual space may not be contiguous as
+	physical memory.  Since this API does not provide any scatter/gather
+	capability, it will fail if the user tries to map a non-physically
+	contiguous piece of memory.  For this reason, memory to be mapped by
+	this API should be obtained from sources which guarantee it to be
+	physically contiguous (like kmalloc).
+
+	Further, the DMA address of the memory must be within the
+	dma_mask of the device (the dma_mask is a bit mask of the
+	addressable region for the device, i.e., if the DMA address of
+	the memory ANDed with the dma_mask is still equal to the DMA
+	address, then the device can perform DMA to the memory).  To
+	ensure that the memory allocated by kmalloc is within the dma_mask,
+	the driver may specify various platform-dependent flags to restrict
+	the DMA address range of the allocation (e.g., on x86, GFP_DMA
+	guarantees to be within the first 16MB of available DMA addresses,
+	as required by ISA devices).
+
+	Note also that the above constraints on physical contiguity and
+	dma_mask may not apply if the platform has an IOMMU (a device which
+	maps an I/O DMA address to a physical memory address).  However, to be
+	portable, device driver writers may *not* assume that such an IOMMU
+	exists.
+
+.. warning::
+
+	Memory coherency operates at a granularity called the cache
+	line width.  In order for memory mapped by this API to operate
+	correctly, the mapped region must begin exactly on a cache line
+	boundary and end exactly on one (to prevent two separately mapped
+	regions from sharing a single cache line).  Since the cache line size
+	may not be known at compile time, the API will not enforce this
+	requirement.  Therefore, it is recommended that driver writers who
+	don't take special care to determine the cache line size at run time
+	only map virtual regions that begin and end on page boundaries (which
+	are guaranteed also to be cache line boundaries).
+
+	DMA_TO_DEVICE synchronisation must be done after the last modification
+	of the memory region by the software and before it is handed off to
+	the device.  Once this primitive is used, memory covered by this
+	primitive should be treated as read-only by the device.  If the device
+	may write to it at any point, it should be DMA_BIDIRECTIONAL (see
+	below).
+
+	DMA_FROM_DEVICE synchronisation must be done before the driver
+	accesses data that may be changed by the device.  This memory should
+	be treated as read-only by the driver.  If the driver needs to write
+	to it at any point, it should be DMA_BIDIRECTIONAL (see below).
+
+	DMA_BIDIRECTIONAL requires special handling: it means that the driver
+	isn't sure if the memory was modified before being handed off to the
+	device and also isn't sure if the device will also modify it.  Thus,
+	you must always sync bidirectional memory twice: once before the
+	memory is handed off to the device (to make sure all memory changes
+	are flushed from the processor) and once before the data may be
+	accessed after being used by the device (to make sure any processor
+	cache lines are updated with data that the device may have changed).
+
+::
 
-Notes:  Not all memory regions in a machine can be mapped by this API.
-Further, contiguous kernel virtual space may not be contiguous as
-physical memory.  Since this API does not provide any scatter/gather
-capability, it will fail if the user tries to map a non-physically
-contiguous piece of memory.  For this reason, memory to be mapped by
-this API should be obtained from sources which guarantee it to be
-physically contiguous (like kmalloc).
-
-Further, the DMA address of the memory must be within the
-dma_mask of the device (the dma_mask is a bit mask of the
-addressable region for the device, i.e., if the DMA address of
-the memory ANDed with the dma_mask is still equal to the DMA
-address, then the device can perform DMA to the memory).  To
-ensure that the memory allocated by kmalloc is within the dma_mask,
-the driver may specify various platform-dependent flags to restrict
-the DMA address range of the allocation (e.g., on x86, GFP_DMA
-guarantees to be within the first 16MB of available DMA addresses,
-as required by ISA devices).
-
-Note also that the above constraints on physical contiguity and
-dma_mask may not apply if the platform has an IOMMU (a device which
-maps an I/O DMA address to a physical memory address).  However, to be
-portable, device driver writers may *not* assume that such an IOMMU
-exists.
-
-Warnings:  Memory coherency operates at a granularity called the cache
-line width.  In order for memory mapped by this API to operate
-correctly, the mapped region must begin exactly on a cache line
-boundary and end exactly on one (to prevent two separately mapped
-regions from sharing a single cache line).  Since the cache line size
-may not be known at compile time, the API will not enforce this
-requirement.  Therefore, it is recommended that driver writers who
-don't take special care to determine the cache line size at run time
-only map virtual regions that begin and end on page boundaries (which
-are guaranteed also to be cache line boundaries).
-
-DMA_TO_DEVICE synchronisation must be done after the last modification
-of the memory region by the software and before it is handed off to
-the device.  Once this primitive is used, memory covered by this
-primitive should be treated as read-only by the device.  If the device
-may write to it at any point, it should be DMA_BIDIRECTIONAL (see
-below).
-
-DMA_FROM_DEVICE synchronisation must be done before the driver
-accesses data that may be changed by the device.  This memory should
-be treated as read-only by the driver.  If the driver needs to write
-to it at any point, it should be DMA_BIDIRECTIONAL (see below).
-
-DMA_BIDIRECTIONAL requires special handling: it means that the driver
-isn't sure if the memory was modified before being handed off to the
-device and also isn't sure if the device will also modify it.  Thus,
-you must always sync bidirectional memory twice: once before the
-memory is handed off to the device (to make sure all memory changes
-are flushed from the processor) and once before the data may be
-accessed after being used by the device (to make sure any processor
-cache lines are updated with data that the device may have changed).
-
-void
-dma_unmap_single(struct device *dev, dma_addr_t dma_addr, size_t size,
-		 enum dma_data_direction direction)
+	void
+	dma_unmap_single(struct device *dev, dma_addr_t dma_addr, size_t size,
+			 enum dma_data_direction direction)
 
 Unmaps the region previously mapped.  All the parameters passed in
 must be identical to those passed in (and returned) by the mapping
 API.
 
-dma_addr_t
-dma_map_page(struct device *dev, struct page *page,
-		    unsigned long offset, size_t size,
-		    enum dma_data_direction direction)
-void
-dma_unmap_page(struct device *dev, dma_addr_t dma_address, size_t size,
-	       enum dma_data_direction direction)
+::
+
+	dma_addr_t
+	dma_map_page(struct device *dev, struct page *page,
+		     unsigned long offset, size_t size,
+		     enum dma_data_direction direction)
+
+	void
+	dma_unmap_page(struct device *dev, dma_addr_t dma_address, size_t size,
+		       enum dma_data_direction direction)
 
 API for mapping and unmapping for pages.  All the notes and warnings
 for the other mapping APIs apply here.  Also, although the <offset>
@@ -277,20 +316,24 @@ and <size> parameters are provided to do partial page mapping, it is
 recommended that you never use these unless you really know what the
 cache width is.
 
-dma_addr_t
-dma_map_resource(struct device *dev, phys_addr_t phys_addr, size_t size,
-		 enum dma_data_direction dir, unsigned long attrs)
+::
 
-void
-dma_unmap_resource(struct device *dev, dma_addr_t addr, size_t size,
-		   enum dma_data_direction dir, unsigned long attrs)
+	dma_addr_t
+	dma_map_resource(struct device *dev, phys_addr_t phys_addr, size_t size,
+			 enum dma_data_direction dir, unsigned long attrs)
+
+	void
+	dma_unmap_resource(struct device *dev, dma_addr_t addr, size_t size,
+			   enum dma_data_direction dir, unsigned long attrs)
 
 API for mapping and unmapping for MMIO resources. All the notes and
 warnings for the other mapping APIs apply here. The API should only be
 used to map device MMIO resources, mapping of RAM is not permitted.
 
-int
-dma_mapping_error(struct device *dev, dma_addr_t dma_addr)
+::
+
+	int
+	dma_mapping_error(struct device *dev, dma_addr_t dma_addr)
 
 In some circumstances dma_map_single(), dma_map_page() and dma_map_resource()
 will fail to create a mapping. A driver can check for these errors by testing
@@ -298,9 +341,11 @@ the returned DMA address with dma_mapping_error(). A non-zero return value
 means the mapping could not be created and the driver should take appropriate
 action (e.g. reduce current DMA mapping usage or delay and try again later).
 
+::
+
 	int
 	dma_map_sg(struct device *dev, struct scatterlist *sg,
-		int nents, enum dma_data_direction direction)
+		   int nents, enum dma_data_direction direction)
 
 Returns: the number of DMA address segments mapped (this may be shorter
 than <nents> passed in if some elements of the scatter/gather list are
@@ -316,7 +361,7 @@ critical that the driver do something, in the case of a block driver
 aborting the request or even oopsing is better than doing nothing and
 corrupting the filesystem.
 
-With scatterlists, you use the resulting mapping like this:
+With scatterlists, you use the resulting mapping like this::
 
 	int i, count = dma_map_sg(dev, sglist, nents, direction);
 	struct scatterlist *sg;
@@ -337,9 +382,11 @@ Then you should loop count times (note: this can be less than nents times)
 and use sg_dma_address() and sg_dma_len() macros where you previously
 accessed sg->address and sg->length as shown above.
 
+::
+
 	void
 	dma_unmap_sg(struct device *dev, struct scatterlist *sg,
-		int nents, enum dma_data_direction direction)
+		     int nents, enum dma_data_direction direction)
 
 Unmap the previously mapped scatter/gather list.  All the parameters
 must be the same as those and passed in to the scatter/gather mapping
@@ -348,18 +395,27 @@ API.
 Note: <nents> must be the number you passed in, *not* the number of
 DMA address entries returned.
 
-void
-dma_sync_single_for_cpu(struct device *dev, dma_addr_t dma_handle, size_t size,
-			enum dma_data_direction direction)
-void
-dma_sync_single_for_device(struct device *dev, dma_addr_t dma_handle, size_t size,
-			   enum dma_data_direction direction)
-void
-dma_sync_sg_for_cpu(struct device *dev, struct scatterlist *sg, int nents,
-		    enum dma_data_direction direction)
-void
-dma_sync_sg_for_device(struct device *dev, struct scatterlist *sg, int nents,
-		       enum dma_data_direction direction)
+::
+
+	void
+	dma_sync_single_for_cpu(struct device *dev, dma_addr_t dma_handle,
+				size_t size,
+				enum dma_data_direction direction)
+
+	void
+	dma_sync_single_for_device(struct device *dev, dma_addr_t dma_handle,
+				   size_t size,
+				   enum dma_data_direction direction)
+
+	void
+	dma_sync_sg_for_cpu(struct device *dev, struct scatterlist *sg,
+			    int nents,
+			    enum dma_data_direction direction)
+
+	void
+	dma_sync_sg_for_device(struct device *dev, struct scatterlist *sg,
+			       int nents,
+			       enum dma_data_direction direction)
 
 Synchronise a single contiguous or scatter/gather mapping for the CPU
 and device. With the sync_sg API, all the parameters must be the same
@@ -367,36 +423,41 @@ as those passed into the single mapping API. With the sync_single API,
 you can use dma_handle and size parameters that aren't identical to
 those passed into the single mapping API to do a partial sync.
 
-Notes:  You must do this:
 
-- Before reading values that have been written by DMA from the device
-  (use the DMA_FROM_DEVICE direction)
-- After writing values that will be written to the device using DMA
-  (use the DMA_TO_DEVICE) direction
-- before *and* after handing memory to the device if the memory is
-  DMA_BIDIRECTIONAL
+.. note::
+
+   You must do this:
+
+   - Before reading values that have been written by DMA from the device
+     (use the DMA_FROM_DEVICE direction)
+   - After writing values that will be written to the device using DMA
+     (use the DMA_TO_DEVICE) direction
+   - before *and* after handing memory to the device if the memory is
+     DMA_BIDIRECTIONAL
 
 See also dma_map_single().
 
-dma_addr_t
-dma_map_single_attrs(struct device *dev, void *cpu_addr, size_t size,
-		     enum dma_data_direction dir,
-		     unsigned long attrs)
+::
+
+	dma_addr_t
+	dma_map_single_attrs(struct device *dev, void *cpu_addr, size_t size,
+			     enum dma_data_direction dir,
+			     unsigned long attrs)
 
-void
-dma_unmap_single_attrs(struct device *dev, dma_addr_t dma_addr,
-		       size_t size, enum dma_data_direction dir,
-		       unsigned long attrs)
+	void
+	dma_unmap_single_attrs(struct device *dev, dma_addr_t dma_addr,
+			       size_t size, enum dma_data_direction dir,
+			       unsigned long attrs)
 
-int
-dma_map_sg_attrs(struct device *dev, struct scatterlist *sgl,
-		 int nents, enum dma_data_direction dir,
-		 unsigned long attrs)
+	int
+	dma_map_sg_attrs(struct device *dev, struct scatterlist *sgl,
+			 int nents, enum dma_data_direction dir,
+			 unsigned long attrs)
 
-void
-dma_unmap_sg_attrs(struct device *dev, struct scatterlist *sgl,
-		   int nents, enum dma_data_direction dir,
-		   unsigned long attrs)
+	void
+	dma_unmap_sg_attrs(struct device *dev, struct scatterlist *sgl,
+			   int nents, enum dma_data_direction dir,
+			   unsigned long attrs)
 
 The four functions above are just like the counterpart functions
 without the _attrs suffixes, except that they pass an optional
@@ -410,37 +471,38 @@ is identical to those of the corresponding function
 without the _attrs suffix. As a result dma_map_single_attrs()
 can generally replace dma_map_single(), etc.
 
-As an example of the use of the *_attrs functions, here's how
+As an example of the use of the ``*_attrs`` functions, here's how
 you could pass an attribute DMA_ATTR_FOO when mapping memory
-for DMA:
+for DMA::
 
-#include <linux/dma-mapping.h>
-/* DMA_ATTR_FOO should be defined in linux/dma-mapping.h and
- * documented in Documentation/DMA-attributes.txt */
-...
+	#include <linux/dma-mapping.h>
+	/* DMA_ATTR_FOO should be defined in linux/dma-mapping.h and
+	* documented in Documentation/DMA-attributes.txt */
+	...
 
-	unsigned long attr;
-	attr |= DMA_ATTR_FOO;
-	....
-	n = dma_map_sg_attrs(dev, sg, nents, DMA_TO_DEVICE, attr);
-	....
+		unsigned long attr;
+		attr |= DMA_ATTR_FOO;
+		....
+		n = dma_map_sg_attrs(dev, sg, nents, DMA_TO_DEVICE, attr);
+		....
 
 Architectures that care about DMA_ATTR_FOO would check for its
 presence in their implementations of the mapping and unmapping
-routines, e.g.:
-
-void whizco_dma_map_sg_attrs(struct device *dev, dma_addr_t dma_addr,
-			     size_t size, enum dma_data_direction dir,
-			     unsigned long attrs)
-{
-	....
-	if (attrs & DMA_ATTR_FOO)
-		/* twizzle the frobnozzle */
-	....
+routines, e.g.:::
+
+	void whizco_dma_map_sg_attrs(struct device *dev, dma_addr_t dma_addr,
+				     size_t size, enum dma_data_direction dir,
+				     unsigned long attrs)
+	{
+		....
+		if (attrs & DMA_ATTR_FOO)
+			/* twizzle the frobnozzle */
+		....
+	}
 
 
-Part II - Advanced dma_ usage
------------------------------
+Part II - Advanced dma usage
+----------------------------
 
 Warning: These pieces of the DMA API should not be used in the
 majority of cases, since they cater for unlikely corner cases that
@@ -450,9 +512,11 @@ If you don't understand how cache line coherency works between a
 processor and an I/O device, you should not be using this part of the
 API at all.
 
-void *
-dma_alloc_noncoherent(struct device *dev, size_t size,
-			       dma_addr_t *dma_handle, gfp_t flag)
+::
+
+	void *
+	dma_alloc_noncoherent(struct device *dev, size_t size,
+			      dma_addr_t *dma_handle, gfp_t flag)
 
 Identical to dma_alloc_coherent() except that the platform will
 choose to return either consistent or non-consistent memory as it sees
@@ -468,39 +532,49 @@ only use this API if you positively know your driver will be
 required to work on one of the rare (usually non-PCI) architectures
 that simply cannot make consistent memory.
 
-void
-dma_free_noncoherent(struct device *dev, size_t size, void *cpu_addr,
-			      dma_addr_t dma_handle)
+::
+
+	void
+	dma_free_noncoherent(struct device *dev, size_t size, void *cpu_addr,
+			     dma_addr_t dma_handle)
 
 Free memory allocated by the nonconsistent API.  All parameters must
 be identical to those passed in (and returned by
 dma_alloc_noncoherent()).
 
-int
-dma_get_cache_alignment(void)
+::
+
+	int
+	dma_get_cache_alignment(void)
 
 Returns the processor cache alignment.  This is the absolute minimum
 alignment *and* width that you must observe when either mapping
 memory or doing partial flushes.
 
-Notes: This API may return a number *larger* than the actual cache
-line, but it will guarantee that one or more cache lines fit exactly
-into the width returned by this call.  It will also always be a power
-of two for easy alignment.
+.. note::
 
-void
-dma_cache_sync(struct device *dev, void *vaddr, size_t size,
-	       enum dma_data_direction direction)
+	This API may return a number *larger* than the actual cache
+	line, but it will guarantee that one or more cache lines fit exactly
+	into the width returned by this call.  It will also always be a power
+	of two for easy alignment.
+
+::
+
+	void
+	dma_cache_sync(struct device *dev, void *vaddr, size_t size,
+		       enum dma_data_direction direction)
 
 Do a partial sync of memory that was allocated by
 dma_alloc_noncoherent(), starting at virtual address vaddr and
 continuing on for size.  Again, you *must* observe the cache line
 boundaries when doing this.
 
-int
-dma_declare_coherent_memory(struct device *dev, phys_addr_t phys_addr,
-			    dma_addr_t device_addr, size_t size, int
-			    flags)
+::
+
+	int
+	dma_declare_coherent_memory(struct device *dev, phys_addr_t phys_addr,
+				    dma_addr_t device_addr, size_t size, int
+				    flags)
 
 Declare region of memory to be handed out by dma_alloc_coherent() when
 it's asked for coherent memory for this device.
@@ -516,21 +590,21 @@ size is the size of the area (must be multiples of PAGE_SIZE).
 
 flags can be ORed together and are:
 
-DMA_MEMORY_MAP - request that the memory returned from
-dma_alloc_coherent() be directly writable.
+- DMA_MEMORY_MAP - request that the memory returned from
+  dma_alloc_coherent() be directly writable.
 
-DMA_MEMORY_IO - request that the memory returned from
-dma_alloc_coherent() be addressable using read()/write()/memcpy_toio() etc.
+- DMA_MEMORY_IO - request that the memory returned from
+  dma_alloc_coherent() be addressable using read()/write()/memcpy_toio() etc.
 
 One or both of these flags must be present.
 
-DMA_MEMORY_INCLUDES_CHILDREN - make the declared memory be allocated by
-dma_alloc_coherent of any child devices of this one (for memory residing
-on a bridge).
+- DMA_MEMORY_INCLUDES_CHILDREN - make the declared memory be allocated by
+  dma_alloc_coherent of any child devices of this one (for memory residing
+  on a bridge).
 
-DMA_MEMORY_EXCLUSIVE - only allocate memory from the declared regions. 
-Do not allow dma_alloc_coherent() to fall back to system memory when
-it's out of memory in the declared region.
+- DMA_MEMORY_EXCLUSIVE - only allocate memory from the declared regions.
+  Do not allow dma_alloc_coherent() to fall back to system memory when
+  it's out of memory in the declared region.
 
 The return value will be either DMA_MEMORY_MAP or DMA_MEMORY_IO and
 must correspond to a passed in flag (i.e. no returning DMA_MEMORY_IO
@@ -543,15 +617,17 @@ must be accessed using the correct bus functions.  If your driver
 isn't prepared to handle this contingency, it should not specify
 DMA_MEMORY_IO in the input flags.
 
-As a simplification for the platforms, only *one* such region of
+As a simplification for the platforms, only **one** such region of
 memory may be declared per device.
 
 For reasons of efficiency, most platforms choose to track the declared
 region only at the granularity of a page.  For smaller allocations,
 you should use the dma_pool() API.
 
-void
-dma_release_declared_memory(struct device *dev)
+::
+
+	void
+	dma_release_declared_memory(struct device *dev)
 
 Remove the memory region previously declared from the system.  This
 API performs *no* in-use checking for this region and will return
@@ -559,9 +635,11 @@ unconditionally having removed all the required structures.  It is the
 driver's job to ensure that no parts of this memory region are
 currently in use.
 
-void *
-dma_mark_declared_memory_occupied(struct device *dev,
-				  dma_addr_t device_addr, size_t size)
+::
+
+	void *
+	dma_mark_declared_memory_occupied(struct device *dev,
+					  dma_addr_t device_addr, size_t size)
 
 This is used to occupy specific regions of the declared space
 (dma_alloc_coherent() will hand out the first free region it finds).
@@ -592,38 +670,37 @@ option has a performance impact. Do not enable it in production kernels.
 If you boot the resulting kernel will contain code which does some bookkeeping
 about what DMA memory was allocated for which device. If this code detects an
 error it prints a warning message with some details into your kernel log. An
-example warning message may look like this:
-
-------------[ cut here ]------------
-WARNING: at /data2/repos/linux-2.6-iommu/lib/dma-debug.c:448
-	check_unmap+0x203/0x490()
-Hardware name:
-forcedeth 0000:00:08.0: DMA-API: device driver frees DMA memory with wrong
-	function [device address=0x00000000640444be] [size=66 bytes] [mapped as
-single] [unmapped as page]
-Modules linked in: nfsd exportfs bridge stp llc r8169
-Pid: 0, comm: swapper Tainted: G        W  2.6.28-dmatest-09289-g8bb99c0 #1
-Call Trace:
- <IRQ>  [<ffffffff80240b22>] warn_slowpath+0xf2/0x130
- [<ffffffff80647b70>] _spin_unlock+0x10/0x30
- [<ffffffff80537e75>] usb_hcd_link_urb_to_ep+0x75/0xc0
- [<ffffffff80647c22>] _spin_unlock_irqrestore+0x12/0x40
- [<ffffffff8055347f>] ohci_urb_enqueue+0x19f/0x7c0
- [<ffffffff80252f96>] queue_work+0x56/0x60
- [<ffffffff80237e10>] enqueue_task_fair+0x20/0x50
- [<ffffffff80539279>] usb_hcd_submit_urb+0x379/0xbc0
- [<ffffffff803b78c3>] cpumask_next_and+0x23/0x40
- [<ffffffff80235177>] find_busiest_group+0x207/0x8a0
- [<ffffffff8064784f>] _spin_lock_irqsave+0x1f/0x50
- [<ffffffff803c7ea3>] check_unmap+0x203/0x490
- [<ffffffff803c8259>] debug_dma_unmap_page+0x49/0x50
- [<ffffffff80485f26>] nv_tx_done_optimized+0xc6/0x2c0
- [<ffffffff80486c13>] nv_nic_irq_optimized+0x73/0x2b0
- [<ffffffff8026df84>] handle_IRQ_event+0x34/0x70
- [<ffffffff8026ffe9>] handle_edge_irq+0xc9/0x150
- [<ffffffff8020e3ab>] do_IRQ+0xcb/0x1c0
- [<ffffffff8020c093>] ret_from_intr+0x0/0xa
- <EOI> <4>---[ end trace f6435a98e2a38c0e ]---
+example warning message may look like this::
+
+	WARNING: at /data2/repos/linux-2.6-iommu/lib/dma-debug.c:448
+		check_unmap+0x203/0x490()
+	Hardware name:
+	forcedeth 0000:00:08.0: DMA-API: device driver frees DMA memory with wrong
+		function [device address=0x00000000640444be] [size=66 bytes] [mapped as
+	single] [unmapped as page]
+	Modules linked in: nfsd exportfs bridge stp llc r8169
+	Pid: 0, comm: swapper Tainted: G        W  2.6.28-dmatest-09289-g8bb99c0 #1
+	Call Trace:
+	<IRQ>  [<ffffffff80240b22>] warn_slowpath+0xf2/0x130
+	[<ffffffff80647b70>] _spin_unlock+0x10/0x30
+	[<ffffffff80537e75>] usb_hcd_link_urb_to_ep+0x75/0xc0
+	[<ffffffff80647c22>] _spin_unlock_irqrestore+0x12/0x40
+	[<ffffffff8055347f>] ohci_urb_enqueue+0x19f/0x7c0
+	[<ffffffff80252f96>] queue_work+0x56/0x60
+	[<ffffffff80237e10>] enqueue_task_fair+0x20/0x50
+	[<ffffffff80539279>] usb_hcd_submit_urb+0x379/0xbc0
+	[<ffffffff803b78c3>] cpumask_next_and+0x23/0x40
+	[<ffffffff80235177>] find_busiest_group+0x207/0x8a0
+	[<ffffffff8064784f>] _spin_lock_irqsave+0x1f/0x50
+	[<ffffffff803c7ea3>] check_unmap+0x203/0x490
+	[<ffffffff803c8259>] debug_dma_unmap_page+0x49/0x50
+	[<ffffffff80485f26>] nv_tx_done_optimized+0xc6/0x2c0
+	[<ffffffff80486c13>] nv_nic_irq_optimized+0x73/0x2b0
+	[<ffffffff8026df84>] handle_IRQ_event+0x34/0x70
+	[<ffffffff8026ffe9>] handle_edge_irq+0xc9/0x150
+	[<ffffffff8020e3ab>] do_IRQ+0xcb/0x1c0
+	[<ffffffff8020c093>] ret_from_intr+0x0/0xa
+	<EOI> <4>---[ end trace f6435a98e2a38c0e ]---
 
 The driver developer can find the driver and the device including a stacktrace
 of the DMA-API call which caused this warning.
@@ -637,43 +714,42 @@ details.
 The debugfs directory for the DMA-API debugging code is called dma-api/. In
 this directory the following files can currently be found:
 
-	dma-api/all_errors	This file contains a numeric value. If this
+=============================== ===============================================
+dma-api/all_errors		This file contains a numeric value. If this
 				value is not equal to zero the debugging code
 				will print a warning for every error it finds
 				into the kernel log. Be careful with this
 				option, as it can easily flood your logs.
 
-	dma-api/disabled	This read-only file contains the character 'Y'
+dma-api/disabled		This read-only file contains the character 'Y'
 				if the debugging code is disabled. This can
 				happen when it runs out of memory or if it was
 				disabled at boot time
 
-	dma-api/error_count	This file is read-only and shows the total
+dma-api/error_count		This file is read-only and shows the total
 				numbers of errors found.
 
-	dma-api/num_errors	The number in this file shows how many
+dma-api/num_errors		The number in this file shows how many
 				warnings will be printed to the kernel log
 				before it stops. This number is initialized to
 				one at system boot and be set by writing into
 				this file
 
-	dma-api/min_free_entries
-				This read-only file can be read to get the
+dma-api/min_free_entries	This read-only file can be read to get the
 				minimum number of free dma_debug_entries the
 				allocator has ever seen. If this value goes
 				down to zero the code will disable itself
 				because it is not longer reliable.
 
-	dma-api/num_free_entries
-				The current number of free dma_debug_entries
+dma-api/num_free_entries	The current number of free dma_debug_entries
 				in the allocator.
 
-	dma-api/driver-filter
-				You can write a name of a driver into this file
+dma-api/driver-filter		You can write a name of a driver into this file
 				to limit the debug output to requests from that
 				particular driver. Write an empty string to
 				that file to disable the filter and see
 				all errors again.
+=============================== ===============================================
 
 If you have this code compiled into your kernel it will be enabled by default.
 If you want to boot without the bookkeeping anyway you can provide
@@ -692,7 +768,10 @@ of preallocated entries is defined per architecture. If it is too low for you
 boot with 'dma_debug_entries=<your_desired_number>' to overwrite the
 architectural default.
 
-void debug_dma_mapping_error(struct device *dev, dma_addr_t dma_addr);
+::
+
+	void
+	debug_dma_mapping_error(struct device *dev, dma_addr_t dma_addr);
 
 dma-debug interface debug_dma_mapping_error() to debug drivers that fail
 to check DMA mapping errors on addresses returned by dma_map_single() and
@@ -702,4 +781,3 @@ the driver. When driver does unmap, debug_dma_unmap() checks the flag and if
 this flag is still set, prints warning message that includes call trace that
 leads up to the unmap. This interface can be called from dma_mapping_error()
 routines to enable DMA mapping error check debugging.
-
diff --git a/Documentation/DMA-ISA-LPC.txt b/Documentation/DMA-ISA-LPC.txt
index c41331398752..8c2b8be6e45b 100644
--- a/Documentation/DMA-ISA-LPC.txt
+++ b/Documentation/DMA-ISA-LPC.txt
@@ -1,19 +1,20 @@
-                        DMA with ISA and LPC devices
-                        ============================
+============================
+DMA with ISA and LPC devices
+============================
 
-                      Pierre Ossman <drzeus@drzeus.cx>
+:Author: Pierre Ossman <drzeus@drzeus.cx>
 
 This document describes how to do DMA transfers using the old ISA DMA
 controller. Even though ISA is more or less dead today the LPC bus
 uses the same DMA system so it will be around for quite some time.
 
-Part I - Headers and dependencies
----------------------------------
+Headers and dependencies
+------------------------
 
-To do ISA style DMA you need to include two headers:
+To do ISA style DMA you need to include two headers::
 
-#include <linux/dma-mapping.h>
-#include <asm/dma.h>
+	#include <linux/dma-mapping.h>
+	#include <asm/dma.h>
 
 The first is the generic DMA API used to convert virtual addresses to
 bus addresses (see Documentation/DMA-API.txt for details).
@@ -23,8 +24,8 @@ this is not present on all platforms make sure you construct your
 Kconfig to be dependent on ISA_DMA_API (not ISA) so that nobody tries
 to build your driver on unsupported platforms.
 
-Part II - Buffer allocation
----------------------------
+Buffer allocation
+-----------------
 
 The ISA DMA controller has some very strict requirements on which
 memory it can access so extra care must be taken when allocating
@@ -42,13 +43,13 @@ requirements you pass the flag GFP_DMA to kmalloc.
 
 Unfortunately the memory available for ISA DMA is scarce so unless you
 allocate the memory during boot-up it's a good idea to also pass
-__GFP_REPEAT and __GFP_NOWARN to make the allocator try a bit harder.
+__GFP_RETRY_MAYFAIL and __GFP_NOWARN to make the allocator try a bit harder.
 
 (This scarcity also means that you should allocate the buffer as
 early as possible and not release it until the driver is unloaded.)
 
-Part III - Address translation
-------------------------------
+Address translation
+-------------------
 
 To translate the virtual address to a bus address, use the normal DMA
 API. Do _not_ use isa_virt_to_phys() even though it does the same
@@ -61,8 +62,8 @@ Note: x86_64 had a broken DMA API when it came to ISA but has since
 been fixed. If your arch has problems then fix the DMA API instead of
 reverting to the ISA functions.
 
-Part IV - Channels
-------------------
+Channels
+--------
 
 A normal ISA DMA controller has 8 channels. The lower four are for
 8-bit transfers and the upper four are for 16-bit transfers.
@@ -80,8 +81,8 @@ The ability to use 16-bit or 8-bit transfers is _not_ up to you as a
 driver author but depends on what the hardware supports. Check your
 specs or test different channels.
 
-Part V - Transfer data
-----------------------
+Transfer data
+-------------
 
 Now for the good stuff, the actual DMA transfer. :)
 
@@ -112,37 +113,37 @@ Once the DMA transfer is finished (or timed out) you should disable
 the channel again. You should also check get_dma_residue() to make
 sure that all data has been transferred.
 
-Example:
+Example::
 
-int flags, residue;
+	int flags, residue;
 
-flags = claim_dma_lock();
+	flags = claim_dma_lock();
 
-clear_dma_ff();
+	clear_dma_ff();
 
-set_dma_mode(channel, DMA_MODE_WRITE);
-set_dma_addr(channel, phys_addr);
-set_dma_count(channel, num_bytes);
+	set_dma_mode(channel, DMA_MODE_WRITE);
+	set_dma_addr(channel, phys_addr);
+	set_dma_count(channel, num_bytes);
 
-dma_enable(channel);
+	dma_enable(channel);
 
-release_dma_lock(flags);
+	release_dma_lock(flags);
 
-while (!device_done());
+	while (!device_done());
 
-flags = claim_dma_lock();
+	flags = claim_dma_lock();
 
-dma_disable(channel);
+	dma_disable(channel);
 
-residue = dma_get_residue(channel);
-if (residue != 0)
-	printk(KERN_ERR "driver: Incomplete DMA transfer!"
-		" %d bytes left!\n", residue);
+	residue = dma_get_residue(channel);
+	if (residue != 0)
+		printk(KERN_ERR "driver: Incomplete DMA transfer!"
+			" %d bytes left!\n", residue);
 
-release_dma_lock(flags);
+	release_dma_lock(flags);
 
-Part VI - Suspend/resume
-------------------------
+Suspend/resume
+--------------
 
 It is the driver's responsibility to make sure that the machine isn't
 suspended while a DMA transfer is in progress. Also, all DMA settings
diff --git a/Documentation/DMA-attributes.txt b/Documentation/DMA-attributes.txt
index 44c6bc496eee..8f8d97f65d73 100644
--- a/Documentation/DMA-attributes.txt
+++ b/Documentation/DMA-attributes.txt
@@ -1,5 +1,6 @@
-			DMA attributes
-			==============
+==============
+DMA attributes
+==============
 
 This document describes the semantics of the DMA attributes that are
 defined in linux/dma-mapping.h.
@@ -108,6 +109,7 @@ This is a hint to the DMA-mapping subsystem that it's probably not worth
 the time to try to allocate memory to in a way that gives better TLB
 efficiency (AKA it's not worth trying to build the mapping out of larger
 pages).  You might want to specify this if:
+
 - You know that the accesses to this memory won't thrash the TLB.
   You might know that the accesses are likely to be sequential or
   that they aren't sequential but it's unlikely you'll ping-pong
@@ -121,11 +123,12 @@ pages).  You might want to specify this if:
   the mapping to have a short lifetime then it may be worth it to
   optimize allocation (avoid coming up with large pages) instead of
   getting the slight performance win of larger pages.
+
 Setting this hint doesn't guarantee that you won't get huge pages, but it
 means that we won't try quite as hard to get them.
 
-NOTE: At the moment DMA_ATTR_ALLOC_SINGLE_PAGES is only implemented on ARM,
-though ARM64 patches will likely be posted soon.
+.. note:: At the moment DMA_ATTR_ALLOC_SINGLE_PAGES is only implemented on ARM,
+	  though ARM64 patches will likely be posted soon.
 
 DMA_ATTR_NO_WARN
 ----------------
@@ -142,10 +145,10 @@ problem at all, depending on the implementation of the retry mechanism.
 So, this provides a way for drivers to avoid those error messages on calls
 where allocation failures are not a problem, and shouldn't bother the logs.
 
-NOTE: At the moment DMA_ATTR_NO_WARN is only implemented on PowerPC.
+.. note:: At the moment DMA_ATTR_NO_WARN is only implemented on PowerPC.
 
 DMA_ATTR_PRIVILEGED
-------------------------------
+-------------------
 
 Some advanced peripherals such as remote processors and GPUs perform
 accesses to DMA buffers in both privileged "supervisor" and unprivileged
diff --git a/Documentation/IPMI.txt b/Documentation/IPMI.txt
index 6962cab997ef..aa77a25a0940 100644
--- a/Documentation/IPMI.txt
+++ b/Documentation/IPMI.txt
@@ -1,9 +1,8 @@
+=====================
+The Linux IPMI Driver
+=====================
 
-                          The Linux IPMI Driver
-			  ---------------------
-			      Corey Minyard
-			  <minyard@mvista.com>
-			    <minyard@acm.org>
+:Author: Corey Minyard <minyard@mvista.com> / <minyard@acm.org>
 
 The Intelligent Platform Management Interface, or IPMI, is a
 standard for controlling intelligent devices that monitor a system.
@@ -141,7 +140,7 @@ Addressing
 ----------
 
 The IPMI addressing works much like IP addresses, you have an overlay
-to handle the different address types.  The overlay is:
+to handle the different address types.  The overlay is::
 
   struct ipmi_addr
   {
@@ -153,7 +152,7 @@ to handle the different address types.  The overlay is:
 The addr_type determines what the address really is.  The driver
 currently understands two different types of addresses.
 
-"System Interface" addresses are defined as:
+"System Interface" addresses are defined as::
 
   struct ipmi_system_interface_addr
   {
@@ -166,7 +165,7 @@ straight to the BMC on the current card.  The channel must be
 IPMI_BMC_CHANNEL.
 
 Messages that are destined to go out on the IPMB bus use the
-IPMI_IPMB_ADDR_TYPE address type.  The format is
+IPMI_IPMB_ADDR_TYPE address type.  The format is::
 
   struct ipmi_ipmb_addr
   {
@@ -184,16 +183,16 @@ spec.
 Messages
 --------
 
-Messages are defined as:
+Messages are defined as::
 
-struct ipmi_msg
-{
+  struct ipmi_msg
+  {
 	unsigned char netfn;
 	unsigned char lun;
 	unsigned char cmd;
 	unsigned char *data;
 	int           data_len;
-};
+  };
 
 The driver takes care of adding/stripping the header information.  The
 data portion is just the data to be send (do NOT put addressing info
@@ -208,7 +207,7 @@ block of data, even when receiving messages.  Otherwise the driver
 will have no place to put the message.
 
 Messages coming up from the message handler in kernelland will come in
-as:
+as::
 
   struct ipmi_recv_msg
   {
@@ -246,6 +245,7 @@ and the user should not have to care what type of SMI is below them.
 
 
 Watching For Interfaces
+^^^^^^^^^^^^^^^^^^^^^^^
 
 When your code comes up, the IPMI driver may or may not have detected
 if IPMI devices exist.  So you might have to defer your setup until
@@ -256,6 +256,7 @@ and tell you when they come and go.
 
 
 Creating the User
+^^^^^^^^^^^^^^^^^
 
 To use the message handler, you must first create a user using
 ipmi_create_user.  The interface number specifies which SMI you want
@@ -272,6 +273,7 @@ closing the device automatically destroys the user.
 
 
 Messaging
+^^^^^^^^^
 
 To send a message from kernel-land, the ipmi_request_settime() call does
 pretty much all message handling.  Most of the parameter are
@@ -321,6 +323,7 @@ though, since it is tricky to manage your own buffers.
 
 
 Events and Incoming Commands
+^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
 The driver takes care of polling for IPMI events and receiving
 commands (commands are messages that are not responses, they are
@@ -367,7 +370,7 @@ in the system.  It discovers interfaces through a host of different
 methods, depending on the system.
 
 You can specify up to four interfaces on the module load line and
-control some module parameters:
+control some module parameters::
 
   modprobe ipmi_si.o type=<type1>,<type2>....
        ports=<port1>,<port2>... addrs=<addr1>,<addr2>...
@@ -437,7 +440,7 @@ default is one.  Setting to 0 is useful with the hotmod, but is
 obviously only useful for modules.
 
 When compiled into the kernel, the parameters can be specified on the
-kernel command line as:
+kernel command line as::
 
   ipmi_si.type=<type1>,<type2>...
        ipmi_si.ports=<port1>,<port2>... ipmi_si.addrs=<addr1>,<addr2>...
@@ -474,16 +477,22 @@ The driver supports a hot add and remove of interfaces.  This way,
 interfaces can be added or removed after the kernel is up and running.
 This is done using /sys/modules/ipmi_si/parameters/hotmod, which is a
 write-only parameter.  You write a string to this interface.  The string
-has the format:
+has the format::
+
    <op1>[:op2[:op3...]]
-The "op"s are:
+
+The "op"s are::
+
    add|remove,kcs|bt|smic,mem|i/o,<address>[,<opt1>[,<opt2>[,...]]]
-You can specify more than one interface on the line.  The "opt"s are:
+
+You can specify more than one interface on the line.  The "opt"s are::
+
    rsp=<regspacing>
    rsi=<regsize>
    rsh=<regshift>
    irq=<irq>
    ipmb=<ipmb slave addr>
+
 and these have the same meanings as discussed above.  Note that you
 can also use this on the kernel command line for a more compact format
 for specifying an interface.  Note that when removing an interface,
@@ -496,7 +505,7 @@ The SMBus Driver (SSIF)
 The SMBus driver allows up to 4 SMBus devices to be configured in the
 system.  By default, the driver will only register with something it
 finds in DMI or ACPI tables.  You can change this
-at module load time (for a module) with:
+at module load time (for a module) with::
 
   modprobe ipmi_ssif.o
 	addr=<i2caddr1>[,<i2caddr2>[,...]]
@@ -535,7 +544,7 @@ the smb_addr parameter unless you have DMI or ACPI data to tell the
 driver what to use.
 
 When compiled into the kernel, the addresses can be specified on the
-kernel command line as:
+kernel command line as::
 
   ipmb_ssif.addr=<i2caddr1>[,<i2caddr2>[...]]
 	ipmi_ssif.adapter=<adapter1>[,<adapter2>[...]]
@@ -565,9 +574,9 @@ Some users need more detailed information about a device, like where
 the address came from or the raw base device for the IPMI interface.
 You can use the IPMI smi_watcher to catch the IPMI interfaces as they
 come or go, and to grab the information, you can use the function
-ipmi_get_smi_info(), which returns the following structure:
+ipmi_get_smi_info(), which returns the following structure::
 
-struct ipmi_smi_info {
+  struct ipmi_smi_info {
 	enum ipmi_addr_src addr_src;
 	struct device *dev;
 	union {
@@ -575,7 +584,7 @@ struct ipmi_smi_info {
 			void *acpi_handle;
 		} acpi_info;
 	} addr_info;
-};
+  };
 
 Currently special info for only for SI_ACPI address sources is
 returned.  Others may be added as necessary.
@@ -590,7 +599,7 @@ Watchdog
 
 A watchdog timer is provided that implements the Linux-standard
 watchdog timer interface.  It has three module parameters that can be
-used to control it:
+used to control it::
 
   modprobe ipmi_watchdog timeout=<t> pretimeout=<t> action=<action type>
       preaction=<preaction type> preop=<preop type> start_now=x
@@ -635,7 +644,7 @@ watchdog device is closed.  The default value of nowayout is true
 if the CONFIG_WATCHDOG_NOWAYOUT option is enabled, or false if not.
 
 When compiled into the kernel, the kernel command line is available
-for configuring the watchdog:
+for configuring the watchdog::
 
   ipmi_watchdog.timeout=<t> ipmi_watchdog.pretimeout=<t>
 	ipmi_watchdog.action=<action type>
@@ -675,6 +684,7 @@ also get a bunch of OEM events holding the panic string.
 
 
 The field settings of the events are:
+
 * Generator ID: 0x21 (kernel)
 * EvM Rev: 0x03 (this event is formatting in IPMI 1.0 format)
 * Sensor Type: 0x20 (OS critical stop sensor)
@@ -683,18 +693,20 @@ The field settings of the events are:
 * Event Data 1: 0xa1 (Runtime stop in OEM bytes 2 and 3)
 * Event data 2: second byte of panic string
 * Event data 3: third byte of panic string
+
 See the IPMI spec for the details of the event layout.  This event is
 always sent to the local management controller.  It will handle routing
 the message to the right place
 
 Other OEM events have the following format:
-Record ID (bytes 0-1): Set by the SEL.
-Record type (byte 2): 0xf0 (OEM non-timestamped)
-byte 3: The slave address of the card saving the panic
-byte 4: A sequence number (starting at zero)
-The rest of the bytes (11 bytes) are the panic string.  If the panic string
-is longer than 11 bytes, multiple messages will be sent with increasing
-sequence numbers.
+
+* Record ID (bytes 0-1): Set by the SEL.
+* Record type (byte 2): 0xf0 (OEM non-timestamped)
+* byte 3: The slave address of the card saving the panic
+* byte 4: A sequence number (starting at zero)
+  The rest of the bytes (11 bytes) are the panic string.  If the panic string
+  is longer than 11 bytes, multiple messages will be sent with increasing
+  sequence numbers.
 
 Because you cannot send OEM events using the standard interface, this
 function will attempt to find an SEL and add the events there.  It
diff --git a/Documentation/IRQ-affinity.txt b/Documentation/IRQ-affinity.txt
index 01a675175a36..29da5000836a 100644
--- a/Documentation/IRQ-affinity.txt
+++ b/Documentation/IRQ-affinity.txt
@@ -1,8 +1,11 @@
+================
+SMP IRQ affinity
+================
+
 ChangeLog:
-	Started by Ingo Molnar <mingo@redhat.com>
-	Update by Max Krasnyansky <maxk@qualcomm.com>
+	- Started by Ingo Molnar <mingo@redhat.com>
+	- Update by Max Krasnyansky <maxk@qualcomm.com>
 
-SMP IRQ affinity
 
 /proc/irq/IRQ#/smp_affinity and /proc/irq/IRQ#/smp_affinity_list specify
 which target CPUs are permitted for a given IRQ source.  It's a bitmask
@@ -16,50 +19,52 @@ will be set to the default mask. It can then be changed as described above.
 Default mask is 0xffffffff.
 
 Here is an example of restricting IRQ44 (eth1) to CPU0-3 then restricting
-it to CPU4-7 (this is an 8-CPU SMP box):
+it to CPU4-7 (this is an 8-CPU SMP box)::
 
-[root@moon 44]# cd /proc/irq/44
-[root@moon 44]# cat smp_affinity
-ffffffff
+	[root@moon 44]# cd /proc/irq/44
+	[root@moon 44]# cat smp_affinity
+	ffffffff
 
-[root@moon 44]# echo 0f > smp_affinity
-[root@moon 44]# cat smp_affinity
-0000000f
-[root@moon 44]# ping -f h
-PING hell (195.4.7.3): 56 data bytes
-...
---- hell ping statistics ---
-6029 packets transmitted, 6027 packets received, 0% packet loss
-round-trip min/avg/max = 0.1/0.1/0.4 ms
-[root@moon 44]# cat /proc/interrupts | grep 'CPU\|44:'
-           CPU0       CPU1       CPU2       CPU3      CPU4       CPU5        CPU6       CPU7
- 44:       1068       1785       1785       1783         0          0           0         0    IO-APIC-level  eth1
+	[root@moon 44]# echo 0f > smp_affinity
+	[root@moon 44]# cat smp_affinity
+	0000000f
+	[root@moon 44]# ping -f h
+	PING hell (195.4.7.3): 56 data bytes
+	...
+	--- hell ping statistics ---
+	6029 packets transmitted, 6027 packets received, 0% packet loss
+	round-trip min/avg/max = 0.1/0.1/0.4 ms
+	[root@moon 44]# cat /proc/interrupts | grep 'CPU\|44:'
+		CPU0       CPU1       CPU2       CPU3      CPU4       CPU5        CPU6       CPU7
+	44:       1068       1785       1785       1783         0          0           0         0    IO-APIC-level  eth1
 
 As can be seen from the line above IRQ44 was delivered only to the first four
 processors (0-3).
 Now lets restrict that IRQ to CPU(4-7).
 
-[root@moon 44]# echo f0 > smp_affinity
-[root@moon 44]# cat smp_affinity
-000000f0
-[root@moon 44]# ping -f h
-PING hell (195.4.7.3): 56 data bytes
-..
---- hell ping statistics ---
-2779 packets transmitted, 2777 packets received, 0% packet loss
-round-trip min/avg/max = 0.1/0.5/585.4 ms
-[root@moon 44]# cat /proc/interrupts |  'CPU\|44:'
-           CPU0       CPU1       CPU2       CPU3      CPU4       CPU5        CPU6       CPU7
- 44:       1068       1785       1785       1783      1784       1069        1070       1069   IO-APIC-level  eth1
+::
+
+	[root@moon 44]# echo f0 > smp_affinity
+	[root@moon 44]# cat smp_affinity
+	000000f0
+	[root@moon 44]# ping -f h
+	PING hell (195.4.7.3): 56 data bytes
+	..
+	--- hell ping statistics ---
+	2779 packets transmitted, 2777 packets received, 0% packet loss
+	round-trip min/avg/max = 0.1/0.5/585.4 ms
+	[root@moon 44]# cat /proc/interrupts |  'CPU\|44:'
+		CPU0       CPU1       CPU2       CPU3      CPU4       CPU5        CPU6       CPU7
+	44:       1068       1785       1785       1783      1784       1069        1070       1069   IO-APIC-level  eth1
 
 This time around IRQ44 was delivered only to the last four processors.
 i.e counters for the CPU0-3 did not change.
 
-Here is an example of limiting that same irq (44) to cpus 1024 to 1031:
+Here is an example of limiting that same irq (44) to cpus 1024 to 1031::
 
-[root@moon 44]# echo 1024-1031 > smp_affinity_list
-[root@moon 44]# cat smp_affinity_list
-1024-1031
+	[root@moon 44]# echo 1024-1031 > smp_affinity_list
+	[root@moon 44]# cat smp_affinity_list
+	1024-1031
 
 Note that to do this with a bitmask would require 32 bitmasks of zero
 to follow the pertinent one.
diff --git a/Documentation/IRQ-domain.txt b/Documentation/IRQ-domain.txt
index 1f246eb25ca5..4a1cd7645d85 100644
--- a/Documentation/IRQ-domain.txt
+++ b/Documentation/IRQ-domain.txt
@@ -1,4 +1,6 @@
-irq_domain interrupt number mapping library
+===============================================
+The irq_domain interrupt number mapping library
+===============================================
 
 The current design of the Linux kernel uses a single large number
 space where each separate IRQ source is assigned a different number.
@@ -36,7 +38,9 @@ irq_domain also implements translation from an abstract irq_fwspec
 structure to hwirq numbers (Device Tree and ACPI GSI so far), and can
 be easily extended to support other IRQ topology data sources.
 
-=== irq_domain usage ===
+irq_domain usage
+================
+
 An interrupt controller driver creates and registers an irq_domain by
 calling one of the irq_domain_add_*() functions (each mapping method
 has a different allocator function, more on that later).  The function
@@ -62,15 +66,21 @@ If the driver has the Linux IRQ number or the irq_data pointer, and
 needs to know the associated hwirq number (such as in the irq_chip
 callbacks) then it can be directly obtained from irq_data->hwirq.
 
-=== Types of irq_domain mappings ===
+Types of irq_domain mappings
+============================
+
 There are several mechanisms available for reverse mapping from hwirq
 to Linux irq, and each mechanism uses a different allocation function.
 Which reverse map type should be used depends on the use case.  Each
 of the reverse map types are described below:
 
-==== Linear ====
-irq_domain_add_linear()
-irq_domain_create_linear()
+Linear
+------
+
+::
+
+	irq_domain_add_linear()
+	irq_domain_create_linear()
 
 The linear reverse map maintains a fixed size table indexed by the
 hwirq number.  When a hwirq is mapped, an irq_desc is allocated for
@@ -89,9 +99,13 @@ accepts a more general abstraction 'struct fwnode_handle'.
 
 The majority of drivers should use the linear map.
 
-==== Tree ====
-irq_domain_add_tree()
-irq_domain_create_tree()
+Tree
+----
+
+::
+
+	irq_domain_add_tree()
+	irq_domain_create_tree()
 
 The irq_domain maintains a radix tree map from hwirq numbers to Linux
 IRQs.  When an hwirq is mapped, an irq_desc is allocated and the
@@ -109,8 +123,12 @@ accepts a more general abstraction 'struct fwnode_handle'.
 
 Very few drivers should need this mapping.
 
-==== No Map ===-
-irq_domain_add_nomap()
+No Map
+------
+
+::
+
+	irq_domain_add_nomap()
 
 The No Map mapping is to be used when the hwirq number is
 programmable in the hardware.  In this case it is best to program the
@@ -121,10 +139,14 @@ Linux IRQ number into the hardware.
 
 Most drivers cannot use this mapping.
 
-==== Legacy ====
-irq_domain_add_simple()
-irq_domain_add_legacy()
-irq_domain_add_legacy_isa()
+Legacy
+------
+
+::
+
+	irq_domain_add_simple()
+	irq_domain_add_legacy()
+	irq_domain_add_legacy_isa()
 
 The Legacy mapping is a special case for drivers that already have a
 range of irq_descs allocated for the hwirqs.  It is used when the
@@ -163,14 +185,17 @@ that the driver using the simple domain call irq_create_mapping()
 before any irq_find_mapping() since the latter will actually work
 for the static IRQ assignment case.
 
-==== Hierarchy IRQ domain ====
+Hierarchy IRQ domain
+--------------------
+
 On some architectures, there may be multiple interrupt controllers
 involved in delivering an interrupt from the device to the target CPU.
-Let's look at a typical interrupt delivering path on x86 platforms:
+Let's look at a typical interrupt delivering path on x86 platforms::
 
-Device --> IOAPIC -> Interrupt remapping Controller -> Local APIC -> CPU
+  Device --> IOAPIC -> Interrupt remapping Controller -> Local APIC -> CPU
 
 There are three interrupt controllers involved:
+
 1) IOAPIC controller
 2) Interrupt remapping controller
 3) Local APIC controller
@@ -180,7 +205,8 @@ hardware architecture, an irq_domain data structure is built for each
 interrupt controller and those irq_domains are organized into hierarchy.
 When building irq_domain hierarchy, the irq_domain near to the device is
 child and the irq_domain near to CPU is parent. So a hierarchy structure
-as below will be built for the example above.
+as below will be built for the example above::
+
 	CPU Vector irq_domain (root irq_domain to manage CPU vectors)
 		^
 		|
@@ -190,6 +216,7 @@ as below will be built for the example above.
 	IOAPIC irq_domain (manage IOAPIC delivery entries/pins)
 
 There are four major interfaces to use hierarchy irq_domain:
+
 1) irq_domain_alloc_irqs(): allocate IRQ descriptors and interrupt
    controller related resources to deliver these interrupts.
 2) irq_domain_free_irqs(): free IRQ descriptors and interrupt controller
@@ -199,7 +226,8 @@ There are four major interfaces to use hierarchy irq_domain:
 4) irq_domain_deactivate_irq(): deactivate interrupt controller hardware
    to stop delivering the interrupt.
 
-Following changes are needed to support hierarchy irq_domain.
+Following changes are needed to support hierarchy irq_domain:
+
 1) a new field 'parent' is added to struct irq_domain; it's used to
    maintain irq_domain hierarchy information.
 2) a new field 'parent_data' is added to struct irq_data; it's used to
@@ -223,6 +251,7 @@ software architecture.
 
 For an interrupt controller driver to support hierarchy irq_domain, it
 needs to:
+
 1) Implement irq_domain_ops.alloc and irq_domain_ops.free
 2) Optionally implement irq_domain_ops.activate and
    irq_domain_ops.deactivate.
diff --git a/Documentation/IRQ.txt b/Documentation/IRQ.txt
index 1011e7175021..4273806a606b 100644
--- a/Documentation/IRQ.txt
+++ b/Documentation/IRQ.txt
@@ -1,4 +1,6 @@
+===============
 What is an IRQ?
+===============
 
 An IRQ is an interrupt request from a device.
 Currently they can come in over a pin, or over a packet.
diff --git a/Documentation/Intel-IOMMU.txt b/Documentation/Intel-IOMMU.txt
index 49585b6e1ea2..9dae6b47e398 100644
--- a/Documentation/Intel-IOMMU.txt
+++ b/Documentation/Intel-IOMMU.txt
@@ -1,3 +1,4 @@
+===================
 Linux IOMMU Support
 ===================
 
@@ -9,11 +10,11 @@ This guide gives a quick cheat sheet for some basic understanding.
 
 Some Keywords
 
-DMAR - DMA remapping
-DRHD - DMA Remapping Hardware Unit Definition
-RMRR - Reserved memory Region Reporting Structure
-ZLR  - Zero length reads from PCI devices
-IOVA - IO Virtual address.
+- DMAR - DMA remapping
+- DRHD - DMA Remapping Hardware Unit Definition
+- RMRR - Reserved memory Region Reporting Structure
+- ZLR  - Zero length reads from PCI devices
+- IOVA - IO Virtual address.
 
 Basic stuff
 -----------
@@ -33,7 +34,7 @@ devices that need to access these regions. OS is expected to setup
 unity mappings for these regions for these devices to access these regions.
 
 How is IOVA generated?
----------------------
+----------------------
 
 Well behaved drivers call pci_map_*() calls before sending command to device
 that needs to perform DMA. Once DMA is completed and mapping is no longer
@@ -82,14 +83,14 @@ in ACPI.
 ACPI: DMAR (v001 A M I  OEMDMAR  0x00000001 MSFT 0x00000097) @ 0x000000007f5b5ef0
 
 When DMAR is being processed and initialized by ACPI, prints DMAR locations
-and any RMRR's processed.
+and any RMRR's processed::
 
-ACPI DMAR:Host address width 36
-ACPI DMAR:DRHD (flags: 0x00000000)base: 0x00000000fed90000
-ACPI DMAR:DRHD (flags: 0x00000000)base: 0x00000000fed91000
-ACPI DMAR:DRHD (flags: 0x00000001)base: 0x00000000fed93000
-ACPI DMAR:RMRR base: 0x00000000000ed000 end: 0x00000000000effff
-ACPI DMAR:RMRR base: 0x000000007f600000 end: 0x000000007fffffff
+	ACPI DMAR:Host address width 36
+	ACPI DMAR:DRHD (flags: 0x00000000)base: 0x00000000fed90000
+	ACPI DMAR:DRHD (flags: 0x00000000)base: 0x00000000fed91000
+	ACPI DMAR:DRHD (flags: 0x00000001)base: 0x00000000fed93000
+	ACPI DMAR:RMRR base: 0x00000000000ed000 end: 0x00000000000effff
+	ACPI DMAR:RMRR base: 0x000000007f600000 end: 0x000000007fffffff
 
 When DMAR is enabled for use, you will notice..
 
@@ -98,10 +99,12 @@ PCI-DMA: Using DMAR IOMMU
 Fault reporting
 ---------------
 
-DMAR:[DMA Write] Request device [00:02.0] fault addr 6df084000
-DMAR:[fault reason 05] PTE Write access is not set
-DMAR:[DMA Write] Request device [00:02.0] fault addr 6df084000
-DMAR:[fault reason 05] PTE Write access is not set
+::
+
+	DMAR:[DMA Write] Request device [00:02.0] fault addr 6df084000
+	DMAR:[fault reason 05] PTE Write access is not set
+	DMAR:[DMA Write] Request device [00:02.0] fault addr 6df084000
+	DMAR:[fault reason 05] PTE Write access is not set
 
 TBD
 ----
diff --git a/Documentation/SAK.txt b/Documentation/SAK.txt
index 74be14679ed8..260e1d3687bd 100644
--- a/Documentation/SAK.txt
+++ b/Documentation/SAK.txt
@@ -1,5 +1,9 @@
-Linux 2.4.2 Secure Attention Key (SAK) handling
-18 March 2001, Andrew Morton
+=========================================
+Linux Secure Attention Key (SAK) handling
+=========================================
+
+:Date: 18 March 2001
+:Author: Andrew Morton
 
 An operating system's Secure Attention Key is a security tool which is
 provided as protection against trojan password capturing programs.  It
@@ -13,7 +17,7 @@ this sequence.  It is only available if the kernel was compiled with
 sysrq support.
 
 The proper way of generating a SAK is to define the key sequence using
-`loadkeys'.  This will work whether or not sysrq support is compiled
+``loadkeys``.  This will work whether or not sysrq support is compiled
 into the kernel.
 
 SAK works correctly when the keyboard is in raw mode.  This means that
@@ -25,64 +29,63 @@ What key sequence should you use? Well, CTRL-ALT-DEL is used to reboot
 the machine.  CTRL-ALT-BACKSPACE is magical to the X server.  We'll
 choose CTRL-ALT-PAUSE.
 
-In your rc.sysinit (or rc.local) file, add the command
+In your rc.sysinit (or rc.local) file, add the command::
 
 	echo "control alt keycode 101 = SAK" | /bin/loadkeys
 
 And that's it!  Only the superuser may reprogram the SAK key.
 
 
-NOTES
-=====
+.. note::
 
-1: Linux SAK is said to be not a "true SAK" as is required by
-   systems which implement C2 level security.  This author does not
-   know why.
+  1. Linux SAK is said to be not a "true SAK" as is required by
+     systems which implement C2 level security.  This author does not
+     know why.
 
 
-2: On the PC keyboard, SAK kills all applications which have
-   /dev/console opened.
+  2. On the PC keyboard, SAK kills all applications which have
+     /dev/console opened.
 
-   Unfortunately this includes a number of things which you don't
-   actually want killed.  This is because these applications are
-   incorrectly holding /dev/console open.  Be sure to complain to your
-   Linux distributor about this!
+     Unfortunately this includes a number of things which you don't
+     actually want killed.  This is because these applications are
+     incorrectly holding /dev/console open.  Be sure to complain to your
+     Linux distributor about this!
 
-   You can identify processes which will be killed by SAK with the
-   command
+     You can identify processes which will be killed by SAK with the
+     command::
 
 	# ls -l /proc/[0-9]*/fd/* | grep console
 	l-wx------    1 root     root           64 Mar 18 00:46 /proc/579/fd/0 -> /dev/console
 
-   Then:
+     Then::
 
 	# ps aux|grep 579
 	root       579  0.0  0.1  1088  436 ?        S    00:43   0:00 gpm -t ps/2
 
-   So `gpm' will be killed by SAK.  This is a bug in gpm.  It should
-   be closing standard input.  You can work around this by finding the
-   initscript which launches gpm and changing it thusly:
+     So ``gpm`` will be killed by SAK.  This is a bug in gpm.  It should
+     be closing standard input.  You can work around this by finding the
+     initscript which launches gpm and changing it thusly:
 
-   Old:
+     Old::
 
 	daemon gpm
 
-   New:
+     New::
 
 	daemon gpm < /dev/null
 
-   Vixie cron also seems to have this problem, and needs the same treatment.
+     Vixie cron also seems to have this problem, and needs the same treatment.
 
-   Also, one prominent Linux distribution has the following three
-   lines in its rc.sysinit and rc scripts:
+     Also, one prominent Linux distribution has the following three
+     lines in its rc.sysinit and rc scripts::
 
 	exec 3<&0
 	exec 4>&1
 	exec 5>&2
 
-   These commands cause *all* daemons which are launched by the
-   initscripts to have file descriptors 3, 4 and 5 attached to
-   /dev/console.  So SAK kills them all.  A workaround is to simply
-   delete these lines, but this may cause system management
-   applications to malfunction - test everything well.
+     These commands cause **all** daemons which are launched by the
+     initscripts to have file descriptors 3, 4 and 5 attached to
+     /dev/console.  So SAK kills them all.  A workaround is to simply
+     delete these lines, but this may cause system management
+     applications to malfunction - test everything well.
 
diff --git a/Documentation/SM501.txt b/Documentation/SM501.txt
index 561826f82093..882507453ba4 100644
--- a/Documentation/SM501.txt
+++ b/Documentation/SM501.txt
@@ -1,7 +1,10 @@
-			SM501 Driver
-			============
+.. include:: <isonum.txt>
 
-Copyright 2006, 2007 Simtec Electronics
+============
+SM501 Driver
+============
+
+:Copyright: |copy| 2006, 2007 Simtec Electronics
 
 The Silicon Motion SM501 multimedia companion chip is a multifunction device
 which may provide numerous interfaces including USB host controller USB gadget,
diff --git a/Documentation/admin-guide/pm/cpufreq.rst b/Documentation/admin-guide/pm/cpufreq.rst
index 463cf7e73db8..7af83a92d2d6 100644
--- a/Documentation/admin-guide/pm/cpufreq.rst
+++ b/Documentation/admin-guide/pm/cpufreq.rst
@@ -237,6 +237,14 @@ are the following:
 	This attribute is not present if the scaling driver in use does not
 	support it.
 
+``cpuinfo_cur_freq``
+	Current frequency of the CPUs belonging to this policy as obtained from
+	the hardware (in KHz).
+
+	This is expected to be the frequency the hardware actually runs at.
+	If that frequency cannot be determined, this attribute should not
+	be present.
+
 ``cpuinfo_max_freq``
 	Maximum possible operating frequency the CPUs belonging to this policy
 	can run at (in kHz).
diff --git a/Documentation/arm64/silicon-errata.txt b/Documentation/arm64/silicon-errata.txt
index f5f93dca54b7..66e8ce14d23d 100644
--- a/Documentation/arm64/silicon-errata.txt
+++ b/Documentation/arm64/silicon-errata.txt
@@ -61,12 +61,15 @@ stable kernels.
 | Cavium         | ThunderX ITS    | #23144          | CAVIUM_ERRATUM_23144        |
 | Cavium         | ThunderX GICv3  | #23154          | CAVIUM_ERRATUM_23154        |
 | Cavium         | ThunderX Core   | #27456          | CAVIUM_ERRATUM_27456        |
-| Cavium         | ThunderX SMMUv2 | #27704          | N/A                         |
 | Cavium         | ThunderX Core   | #30115          | CAVIUM_ERRATUM_30115        |
+| Cavium         | ThunderX SMMUv2 | #27704          | N/A                         |
+| Cavium         | ThunderX2 SMMUv3| #74             | N/A                         |
+| Cavium         | ThunderX2 SMMUv3| #126            | N/A                         |
 |                |                 |                 |                             |
 | Freescale/NXP  | LS2080A/LS1043A | A-008585        | FSL_ERRATUM_A008585         |
 |                |                 |                 |                             |
 | Hisilicon      | Hip0{5,6,7}     | #161010101      | HISILICON_ERRATUM_161010101 |
+| Hisilicon      | Hip0{6,7}       | #161010701      | N/A                         |
 |                |                 |                 |                             |
 | Qualcomm Tech. | Falkor v1       | E1003           | QCOM_FALKOR_ERRATUM_1003    |
 | Qualcomm Tech. | Falkor v1       | E1009           | QCOM_FALKOR_ERRATUM_1009    |
diff --git a/Documentation/bcache.txt b/Documentation/bcache.txt
index a9259b562d5c..c0ce64d75bbf 100644
--- a/Documentation/bcache.txt
+++ b/Documentation/bcache.txt
@@ -1,10 +1,15 @@
+============================
+A block layer cache (bcache)
+============================
+
 Say you've got a big slow raid 6, and an ssd or three. Wouldn't it be
 nice if you could use them as cache... Hence bcache.
 
 Wiki and git repositories are at:
-  http://bcache.evilpiepirate.org
-  http://evilpiepirate.org/git/linux-bcache.git
-  http://evilpiepirate.org/git/bcache-tools.git
+
+  - http://bcache.evilpiepirate.org
+  - http://evilpiepirate.org/git/linux-bcache.git
+  - http://evilpiepirate.org/git/bcache-tools.git
 
 It's designed around the performance characteristics of SSDs - it only allocates
 in erase block sized buckets, and it uses a hybrid btree/log to track cached
@@ -37,17 +42,19 @@ to be flushed.
 
 Getting started:
 You'll need make-bcache from the bcache-tools repository. Both the cache device
-and backing device must be formatted before use.
+and backing device must be formatted before use::
+
   make-bcache -B /dev/sdb
   make-bcache -C /dev/sdc
 
 make-bcache has the ability to format multiple devices at the same time - if
 you format your backing devices and cache device at the same time, you won't
-have to manually attach:
+have to manually attach::
+
   make-bcache -B /dev/sda /dev/sdb -C /dev/sdc
 
 bcache-tools now ships udev rules, and bcache devices are known to the kernel
-immediately.  Without udev, you can manually register devices like this:
+immediately.  Without udev, you can manually register devices like this::
 
   echo /dev/sdb > /sys/fs/bcache/register
   echo /dev/sdc > /sys/fs/bcache/register
@@ -60,16 +67,16 @@ slow devices as bcache backing devices without a cache, and you can choose to ad
 a caching device later.
 See 'ATTACHING' section below.
 
-The devices show up as:
+The devices show up as::
 
   /dev/bcache<N>
 
-As well as (with udev):
+As well as (with udev)::
 
   /dev/bcache/by-uuid/<uuid>
   /dev/bcache/by-label/<label>
 
-To get started:
+To get started::
 
   mkfs.ext4 /dev/bcache0
   mount /dev/bcache0 /mnt
@@ -81,13 +88,13 @@ Cache devices are managed as sets; multiple caches per set isn't supported yet
 but will allow for mirroring of metadata and dirty data in the future. Your new
 cache set shows up as /sys/fs/bcache/<UUID>
 
-ATTACHING
+Attaching
 ---------
 
 After your cache device and backing device are registered, the backing device
 must be attached to your cache set to enable caching. Attaching a backing
 device to a cache set is done thusly, with the UUID of the cache set in
-/sys/fs/bcache:
+/sys/fs/bcache::
 
   echo <CSET-UUID> > /sys/block/bcache0/bcache/attach
 
@@ -97,7 +104,7 @@ your bcache devices. If a backing device has data in a cache somewhere, the
 important if you have writeback caching turned on.
 
 If you're booting up and your cache device is gone and never coming back, you
-can force run the backing device:
+can force run the backing device::
 
   echo 1 > /sys/block/sdb/bcache/running
 
@@ -110,7 +117,7 @@ but all the cached data will be invalidated. If there was dirty data in the
 cache, don't expect the filesystem to be recoverable - you will have massive
 filesystem corruption, though ext4's fsck does work miracles.
 
-ERROR HANDLING
+Error Handling
 --------------
 
 Bcache tries to transparently handle IO errors to/from the cache device without
@@ -134,25 +141,27 @@ the backing devices to passthrough mode.
    read some of the dirty data, though.
 
 
-HOWTO/COOKBOOK
+Howto/cookbook
 --------------
 
 A) Starting a bcache with a missing caching device
 
 If registering the backing device doesn't help, it's already there, you just need
-to force it to run without the cache:
+to force it to run without the cache::
+
 	host:~# echo /dev/sdb1 > /sys/fs/bcache/register
 	[  119.844831] bcache: register_bcache() error opening /dev/sdb1: device already registered
 
 Next, you try to register your caching device if it's present. However
 if it's absent, or registration fails for some reason, you can still
-start your bcache without its cache, like so:
+start your bcache without its cache, like so::
+
 	host:/sys/block/sdb/sdb1/bcache# echo 1 > running
 
 Note that this may cause data loss if you were running in writeback mode.
 
 
-B) Bcache does not find its cache
+B) Bcache does not find its cache::
 
 	host:/sys/block/md5/bcache# echo 0226553a-37cf-41d5-b3ce-8b1e944543a8 > attach
 	[ 1933.455082] bcache: bch_cached_dev_attach() Couldn't find uuid for md5 in set
@@ -160,7 +169,8 @@ B) Bcache does not find its cache
 	[ 1933.478179] : cache set not found
 
 In this case, the caching device was simply not registered at boot
-or disappeared and came back, and needs to be (re-)registered:
+or disappeared and came back, and needs to be (re-)registered::
+
 	host:/sys/block/md5/bcache# echo /dev/sdh2 > /sys/fs/bcache/register
 
 
@@ -180,7 +190,8 @@ device is still available at an 8KiB offset. So either via a loopdev
 of the backing device created with --offset 8K, or any value defined by
 --data-offset when you originally formatted bcache with `make-bcache`.
 
-For example:
+For example::
+
 	losetup -o 8192 /dev/loop0 /dev/your_bcache_backing_dev
 
 This should present your unmodified backing device data in /dev/loop0
@@ -191,33 +202,38 @@ cache device without loosing data.
 
 E) Wiping a cache device
 
-host:~# wipefs -a /dev/sdh2
-16 bytes were erased at offset 0x1018 (bcache)
-they were: c6 85 73 f6 4e 1a 45 ca 82 65 f5 7f 48 ba 6d 81
+::
+
+	host:~# wipefs -a /dev/sdh2
+	16 bytes were erased at offset 0x1018 (bcache)
+	they were: c6 85 73 f6 4e 1a 45 ca 82 65 f5 7f 48 ba 6d 81
+
+After you boot back with bcache enabled, you recreate the cache and attach it::
 
-After you boot back with bcache enabled, you recreate the cache and attach it:
-host:~# make-bcache -C /dev/sdh2
-UUID:                   7be7e175-8f4c-4f99-94b2-9c904d227045
-Set UUID:               5bc072a8-ab17-446d-9744-e247949913c1
-version:                0
-nbuckets:               106874
-block_size:             1
-bucket_size:            1024
-nr_in_set:              1
-nr_this_dev:            0
-first_bucket:           1
-[  650.511912] bcache: run_cache_set() invalidating existing data
-[  650.549228] bcache: register_cache() registered cache device sdh2
+	host:~# make-bcache -C /dev/sdh2
+	UUID:                   7be7e175-8f4c-4f99-94b2-9c904d227045
+	Set UUID:               5bc072a8-ab17-446d-9744-e247949913c1
+	version:                0
+	nbuckets:               106874
+	block_size:             1
+	bucket_size:            1024
+	nr_in_set:              1
+	nr_this_dev:            0
+	first_bucket:           1
+	[  650.511912] bcache: run_cache_set() invalidating existing data
+	[  650.549228] bcache: register_cache() registered cache device sdh2
 
-start backing device with missing cache:
-host:/sys/block/md5/bcache# echo 1 > running
+start backing device with missing cache::
 
-attach new cache:
-host:/sys/block/md5/bcache# echo 5bc072a8-ab17-446d-9744-e247949913c1 > attach
-[  865.276616] bcache: bch_cached_dev_attach() Caching md5 as bcache0 on set 5bc072a8-ab17-446d-9744-e247949913c1
+	host:/sys/block/md5/bcache# echo 1 > running
 
+attach new cache::
 
-F) Remove or replace a caching device
+	host:/sys/block/md5/bcache# echo 5bc072a8-ab17-446d-9744-e247949913c1 > attach
+	[  865.276616] bcache: bch_cached_dev_attach() Caching md5 as bcache0 on set 5bc072a8-ab17-446d-9744-e247949913c1
+
+
+F) Remove or replace a caching device::
 
 	host:/sys/block/sda/sda7/bcache# echo 1 > detach
 	[  695.872542] bcache: cached_dev_detach_finish() Caching disabled for sda7
@@ -226,13 +242,15 @@ F) Remove or replace a caching device
 	wipefs: error: /dev/nvme0n1p4: probing initialization failed: Device or resource busy
 	Ooops, it's disabled, but not unregistered, so it's still protected
 
-We need to go and unregister it:
+We need to go and unregister it::
+
 	host:/sys/fs/bcache/b7ba27a1-2398-4649-8ae3-0959f57ba128# ls -l cache0
 	lrwxrwxrwx 1 root root 0 Feb 25 18:33 cache0 -> ../../../devices/pci0000:00/0000:00:1d.0/0000:70:00.0/nvme/nvme0/nvme0n1/nvme0n1p4/bcache/
 	host:/sys/fs/bcache/b7ba27a1-2398-4649-8ae3-0959f57ba128# echo 1 > stop
 	kernel: [  917.041908] bcache: cache_set_free() Cache set b7ba27a1-2398-4649-8ae3-0959f57ba128 unregistered
 
-Now we can wipe it:
+Now we can wipe it::
+
 	host:~# wipefs -a /dev/nvme0n1p4
 	/dev/nvme0n1p4: 16 bytes were erased at offset 0x00001018 (bcache): c6 85 73 f6 4e 1a 45 ca 82 65 f5 7f 48 ba 6d 81
 
@@ -252,40 +270,44 @@ if there are any active backing or caching devices left on it:
 
 1) Is it present in /dev/bcache* ? (there are times where it won't be)
 
-If so, it's easy:
+   If so, it's easy::
+
 	host:/sys/block/bcache0/bcache# echo 1 > stop
 
-2) But if your backing device is gone, this won't work:
+2) But if your backing device is gone, this won't work::
+
 	host:/sys/block/bcache0# cd bcache
 	bash: cd: bcache: No such file or directory
 
-In this case, you may have to unregister the dmcrypt block device that
-references this bcache to free it up:
+   In this case, you may have to unregister the dmcrypt block device that
+   references this bcache to free it up::
+
 	host:~# dmsetup remove oldds1
 	bcache: bcache_device_free() bcache0 stopped
 	bcache: cache_set_free() Cache set 5bc072a8-ab17-446d-9744-e247949913c1 unregistered
 
-This causes the backing bcache to be removed from /sys/fs/bcache and
-then it can be reused.  This would be true of any block device stacking
-where bcache is a lower device.
+   This causes the backing bcache to be removed from /sys/fs/bcache and
+   then it can be reused.  This would be true of any block device stacking
+   where bcache is a lower device.
+
+3) In other cases, you can also look in /sys/fs/bcache/::
 
-3) In other cases, you can also look in /sys/fs/bcache/:
+	host:/sys/fs/bcache# ls -l */{cache?,bdev?}
+	lrwxrwxrwx 1 root root 0 Mar  5 09:39 0226553a-37cf-41d5-b3ce-8b1e944543a8/bdev1 -> ../../../devices/virtual/block/dm-1/bcache/
+	lrwxrwxrwx 1 root root 0 Mar  5 09:39 0226553a-37cf-41d5-b3ce-8b1e944543a8/cache0 -> ../../../devices/virtual/block/dm-4/bcache/
+	lrwxrwxrwx 1 root root 0 Mar  5 09:39 5bc072a8-ab17-446d-9744-e247949913c1/cache0 -> ../../../devices/pci0000:00/0000:00:01.0/0000:01:00.0/ata10/host9/target9:0:0/9:0:0:0/block/sdl/sdl2/bcache/
 
-host:/sys/fs/bcache# ls -l */{cache?,bdev?}
-lrwxrwxrwx 1 root root 0 Mar  5 09:39 0226553a-37cf-41d5-b3ce-8b1e944543a8/bdev1 -> ../../../devices/virtual/block/dm-1/bcache/
-lrwxrwxrwx 1 root root 0 Mar  5 09:39 0226553a-37cf-41d5-b3ce-8b1e944543a8/cache0 -> ../../../devices/virtual/block/dm-4/bcache/
-lrwxrwxrwx 1 root root 0 Mar  5 09:39 5bc072a8-ab17-446d-9744-e247949913c1/cache0 -> ../../../devices/pci0000:00/0000:00:01.0/0000:01:00.0/ata10/host9/target9:0:0/9:0:0:0/block/sdl/sdl2/bcache/
+   The device names will show which UUID is relevant, cd in that directory
+   and stop the cache::
 
-The device names will show which UUID is relevant, cd in that directory
-and stop the cache:
 	host:/sys/fs/bcache/5bc072a8-ab17-446d-9744-e247949913c1# echo 1 > stop
 
-This will free up bcache references and let you reuse the partition for
-other purposes.
+   This will free up bcache references and let you reuse the partition for
+   other purposes.
 
 
 
-TROUBLESHOOTING PERFORMANCE
+Troubleshooting performance
 ---------------------------
 
 Bcache has a bunch of config options and tunables. The defaults are intended to
@@ -301,11 +323,13 @@ want for getting the best possible numbers when benchmarking.
    raid stripe size to get the disk multiples that you would like.
 
    For example:  If you have a 64k stripe size, then the following offset
-   would provide alignment for many common RAID5 data spindle counts:
+   would provide alignment for many common RAID5 data spindle counts::
+
 	64k * 2*2*2*3*3*5*7 bytes = 161280k
 
    That space is wasted, but for only 157.5MB you can grow your RAID 5
-   volume to the following data-spindle counts without re-aligning:
+   volume to the following data-spindle counts without re-aligning::
+
 	3,4,5,6,7,8,9,10,12,14,15,18,20,21 ...
 
  - Bad write performance
@@ -313,9 +337,9 @@ want for getting the best possible numbers when benchmarking.
    If write performance is not what you expected, you probably wanted to be
    running in writeback mode, which isn't the default (not due to a lack of
    maturity, but simply because in writeback mode you'll lose data if something
-   happens to your SSD)
+   happens to your SSD)::
 
-   # echo writeback > /sys/block/bcache0/bcache/cache_mode
+	# echo writeback > /sys/block/bcache0/bcache/cache_mode
 
  - Bad performance, or traffic not going to the SSD that you'd expect
 
@@ -325,13 +349,13 @@ want for getting the best possible numbers when benchmarking.
    accessed data out of your cache.
 
    But if you want to benchmark reads from cache, and you start out with fio
-   writing an 8 gigabyte test file - so you want to disable that.
+   writing an 8 gigabyte test file - so you want to disable that::
 
-   # echo 0 > /sys/block/bcache0/bcache/sequential_cutoff
+	# echo 0 > /sys/block/bcache0/bcache/sequential_cutoff
 
-   To set it back to the default (4 mb), do
+   To set it back to the default (4 mb), do::
 
-   # echo 4M > /sys/block/bcache0/bcache/sequential_cutoff
+	# echo 4M > /sys/block/bcache0/bcache/sequential_cutoff
 
  - Traffic's still going to the spindle/still getting cache misses
 
@@ -344,10 +368,10 @@ want for getting the best possible numbers when benchmarking.
    throttles traffic if the latency exceeds a threshold (it does this by
    cranking down the sequential bypass).
 
-   You can disable this if you need to by setting the thresholds to 0:
+   You can disable this if you need to by setting the thresholds to 0::
 
-   # echo 0 > /sys/fs/bcache/<cache set>/congested_read_threshold_us
-   # echo 0 > /sys/fs/bcache/<cache set>/congested_write_threshold_us
+	# echo 0 > /sys/fs/bcache/<cache set>/congested_read_threshold_us
+	# echo 0 > /sys/fs/bcache/<cache set>/congested_write_threshold_us
 
    The default is 2000 us (2 milliseconds) for reads, and 20000 for writes.
 
@@ -369,7 +393,7 @@ want for getting the best possible numbers when benchmarking.
    a fix for the issue there).
 
 
-SYSFS - BACKING DEVICE
+Sysfs - backing device
 ----------------------
 
 Available at /sys/block/<bdev>/bcache, /sys/block/bcache*/bcache and
@@ -454,7 +478,8 @@ writeback_running
   still be added to the cache until it is mostly full; only meant for
   benchmarking. Defaults to on.
 
-SYSFS - BACKING DEVICE STATS:
+Sysfs - backing device stats
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~
 
 There are directories with these numbers for a running total, as well as
 versions that decay over the past day, hour and 5 minutes; they're also
@@ -463,14 +488,11 @@ aggregated in the cache set directory as well.
 bypassed
   Amount of IO (both reads and writes) that has bypassed the cache
 
-cache_hits
-cache_misses
-cache_hit_ratio
+cache_hits, cache_misses, cache_hit_ratio
   Hits and misses are counted per individual IO as bcache sees them; a
   partial hit is counted as a miss.
 
-cache_bypass_hits
-cache_bypass_misses
+cache_bypass_hits, cache_bypass_misses
   Hits and misses for IO that is intended to skip the cache are still counted,
   but broken out here.
 
@@ -482,7 +504,8 @@ cache_miss_collisions
 cache_readaheads
   Count of times readahead occurred.
 
-SYSFS - CACHE SET:
+Sysfs - cache set
+~~~~~~~~~~~~~~~~~
 
 Available at /sys/fs/bcache/<cset-uuid>
 
@@ -520,8 +543,7 @@ flash_vol_create
   Echoing a size to this file (in human readable units, k/M/G) creates a thinly
   provisioned volume backed by the cache set.
 
-io_error_halflife
-io_error_limit
+io_error_halflife, io_error_limit
   These determines how many errors we accept before disabling the cache.
   Each error is decayed by the half life (in # ios).  If the decaying count
   reaches io_error_limit dirty data is written out and the cache is disabled.
@@ -545,7 +567,8 @@ unregister
   Detaches all backing devices and closes the cache devices; if dirty data is
   present it will disable writeback caching and wait for it to be flushed.
 
-SYSFS - CACHE SET INTERNAL:
+Sysfs - cache set internal
+~~~~~~~~~~~~~~~~~~~~~~~~~~
 
 This directory also exposes timings for a number of internal operations, with
 separate files for average duration, average frequency, last occurrence and max
@@ -574,7 +597,8 @@ cache_read_races
 trigger_gc
   Writing to this file forces garbage collection to run.
 
-SYSFS - CACHE DEVICE:
+Sysfs - Cache device
+~~~~~~~~~~~~~~~~~~~~
 
 Available at /sys/block/<cdev>/bcache
 
diff --git a/Documentation/bt8xxgpio.txt b/Documentation/bt8xxgpio.txt
index d8297e4ebd26..a845feb074de 100644
--- a/Documentation/bt8xxgpio.txt
+++ b/Documentation/bt8xxgpio.txt
@@ -1,12 +1,8 @@
-===============================================================
-==  BT8XXGPIO driver                                         ==
-==                                                           ==
-==  A driver for a selfmade cheap BT8xx based PCI GPIO-card  ==
-==                                                           ==
-==  For advanced documentation, see                          ==
-==  http://www.bu3sch.de/btgpio.php                          ==
-===============================================================
+===================================================================
+A driver for a selfmade cheap BT8xx based PCI GPIO-card (bt8xxgpio)
+===================================================================
 
+For advanced documentation, see http://www.bu3sch.de/btgpio.php
 
 A generic digital 24-port PCI GPIO card can be built out of an ordinary
 Brooktree bt848, bt849, bt878 or bt879 based analog TV tuner card. The
@@ -17,9 +13,8 @@ The bt8xx chip does have 24 digital GPIO ports.
 These ports are accessible via 24 pins on the SMD chip package.
 
 
-==============================================
-==  How to physically access the GPIO pins  ==
-==============================================
+How to physically access the GPIO pins
+======================================
 
 The are several ways to access these pins. One might unsolder the whole chip
 and put it on a custom PCI board, or one might only unsolder each individual
@@ -27,7 +22,7 @@ GPIO pin and solder that to some tiny wire. As the chip package really is tiny
 there are some advanced soldering skills needed in any case.
 
 The physical pinouts are drawn in the following ASCII art.
-The GPIO pins are marked with G00-G23
+The GPIO pins are marked with G00-G23::
 
                                            G G G G G G G G G G G G     G G G G G G
                                            0 0 0 0 0 0 0 0 0 0 1 1     1 1 1 1 1 1
diff --git a/Documentation/btmrvl.txt b/Documentation/btmrvl.txt
index 34916a46c099..ec57740ead0c 100644
--- a/Documentation/btmrvl.txt
+++ b/Documentation/btmrvl.txt
@@ -1,18 +1,16 @@
-=======================================================================
-		README for btmrvl driver
-=======================================================================
-
+=============
+btmrvl driver
+=============
 
 All commands are used via debugfs interface.
 
-=====================
-Set/get driver configurations:
+Set/get driver configurations
+=============================
 
 Path:	/debug/btmrvl/config/
 
-gpiogap=[n]
-hscfgcmd
-	These commands are used to configure the host sleep parameters.
+gpiogap=[n], hscfgcmd
+	These commands are used to configure the host sleep parameters::
 	bit 8:0  -- Gap
 	bit 16:8 -- GPIO
 
@@ -23,7 +21,8 @@ hscfgcmd
 	where Gap is the gap in milli seconds between wakeup signal and
 	wakeup event, or 0xff for special host sleep setting.
 
-	Usage:
+	Usage::
+
 		# Use SDIO interface to wake up the host and set GAP to 0x80:
 		echo 0xff80 > /debug/btmrvl/config/gpiogap
 		echo 1 > /debug/btmrvl/config/hscfgcmd
@@ -32,15 +31,16 @@ hscfgcmd
 		echo 0x03ff >  /debug/btmrvl/config/gpiogap
 		echo 1 > /debug/btmrvl/config/hscfgcmd
 
-psmode=[n]
-pscmd
+psmode=[n], pscmd
 	These commands are used to enable/disable auto sleep mode
 
-	where the option is:
+	where the option is::
+
 			1 	-- Enable auto sleep mode
 			0 	-- Disable auto sleep mode
 
-	Usage:
+	Usage::
+
 		# Enable auto sleep mode
 		echo 1 > /debug/btmrvl/config/psmode
 		echo 1 > /debug/btmrvl/config/pscmd
@@ -50,15 +50,16 @@ pscmd
 		echo 1 > /debug/btmrvl/config/pscmd
 
 
-hsmode=[n]
-hscmd
+hsmode=[n], hscmd
 	These commands are used to enable host sleep or wake up firmware
 
-	where the option is:
+	where the option is::
+
 			1	-- Enable host sleep
 			0	-- Wake up firmware
 
-	Usage:
+	Usage::
+
 		# Enable host sleep
 		echo 1 > /debug/btmrvl/config/hsmode
 		echo 1 > /debug/btmrvl/config/hscmd
@@ -68,12 +69,13 @@ hscmd
 		echo 1 > /debug/btmrvl/config/hscmd
 
 
-======================
-Get driver status:
+Get driver status
+=================
 
 Path:	/debug/btmrvl/status/
 
-Usage:
+Usage::
+
 	cat /debug/btmrvl/status/<args>
 
 where the args are:
@@ -90,14 +92,17 @@ hsstate
 txdnldrdy
 	This command displays the value of Tx download ready flag.
 
-
-=====================
+Issuing a raw hci command
+=========================
 
 Use hcitool to issue raw hci command, refer to hcitool manual
 
-	Usage: Hcitool cmd <ogf> <ocf> [Parameters]
+Usage::
+
+	Hcitool cmd <ogf> <ocf> [Parameters]
+
+Interface Control Command::
 
-	Interface Control Command
 	hcitool cmd 0x3f 0x5b 0xf5 0x01 0x00    --Enable All interface
 	hcitool cmd 0x3f 0x5b 0xf5 0x01 0x01    --Enable Wlan interface
 	hcitool cmd 0x3f 0x5b 0xf5 0x01 0x02    --Enable BT interface
@@ -105,13 +110,13 @@ Use hcitool to issue raw hci command, refer to hcitool manual
 	hcitool cmd 0x3f 0x5b 0xf5 0x00 0x01    --Disable Wlan interface
 	hcitool cmd 0x3f 0x5b 0xf5 0x00 0x02    --Disable BT interface
 
-=======================================================================
-
+SD8688 firmware
+===============
 
-SD8688 firmware:
+Images:
 
-/lib/firmware/sd8688_helper.bin
-/lib/firmware/sd8688.bin
+- /lib/firmware/sd8688_helper.bin
+- /lib/firmware/sd8688.bin
 
 
 The images can be downloaded from:
diff --git a/Documentation/bus-virt-phys-mapping.txt b/Documentation/bus-virt-phys-mapping.txt
index 2bc55ff3b4d1..4bb07c2f3e7d 100644
--- a/Documentation/bus-virt-phys-mapping.txt
+++ b/Documentation/bus-virt-phys-mapping.txt
@@ -1,17 +1,27 @@
-[ NOTE: The virt_to_bus() and bus_to_virt() functions have been
+==========================================================
+How to access I/O mapped memory from within device drivers
+==========================================================
+
+:Author: Linus
+
+.. warning::
+
+	The virt_to_bus() and bus_to_virt() functions have been
 	superseded by the functionality provided by the PCI DMA interface
 	(see Documentation/DMA-API-HOWTO.txt).  They continue
 	to be documented below for historical purposes, but new code
-	must not use them. --davidm 00/12/12 ]
+	must not use them. --davidm 00/12/12
 
-[ This is a mail message in response to a query on IO mapping, thus the
-  strange format for a "document" ]
+::
+
+  [ This is a mail message in response to a query on IO mapping, thus the
+    strange format for a "document" ]
 
 The AHA-1542 is a bus-master device, and your patch makes the driver give the
 controller the physical address of the buffers, which is correct on x86
 (because all bus master devices see the physical memory mappings directly). 
 
-However, on many setups, there are actually _three_ different ways of looking
+However, on many setups, there are actually **three** different ways of looking
 at memory addresses, and in this case we actually want the third, the
 so-called "bus address". 
 
@@ -38,7 +48,7 @@ because the memory and the devices share the same address space, and that is
 not generally necessarily true on other PCI/ISA setups. 
 
 Now, just as an example, on the PReP (PowerPC Reference Platform), the 
-CPU sees a memory map something like this (this is from memory):
+CPU sees a memory map something like this (this is from memory)::
 
 	0-2 GB		"real memory"
 	2 GB-3 GB	"system IO" (inb/out and similar accesses on x86)
@@ -52,7 +62,7 @@ So when the CPU wants any bus master to write to physical memory 0, it
 has to give the master address 0x80000000 as the memory address.
 
 So, for example, depending on how the kernel is actually mapped on the 
-PPC, you can end up with a setup like this:
+PPC, you can end up with a setup like this::
 
  physical address:	0
  virtual address:	0xC0000000
@@ -61,7 +71,7 @@ PPC, you can end up with a setup like this:
 where all the addresses actually point to the same thing.  It's just seen 
 through different translations..
 
-Similarly, on the Alpha, the normal translation is
+Similarly, on the Alpha, the normal translation is::
 
  physical address:	0
  virtual address:	0xfffffc0000000000
@@ -70,7 +80,7 @@ Similarly, on the Alpha, the normal translation is
 (but there are also Alphas where the physical address and the bus address
 are the same). 
 
-Anyway, the way to look up all these translations, you do
+Anyway, the way to look up all these translations, you do::
 
 	#include <asm/io.h>
 
@@ -81,8 +91,8 @@ Anyway, the way to look up all these translations, you do
 
 Now, when do you need these?
 
-You want the _virtual_ address when you are actually going to access that 
-pointer from the kernel. So you can have something like this:
+You want the **virtual** address when you are actually going to access that
+pointer from the kernel. So you can have something like this::
 
 	/*
 	 * this is the hardware "mailbox" we use to communicate with
@@ -104,7 +114,7 @@ pointer from the kernel. So you can have something like this:
 				...
 
 on the other hand, you want the bus address when you have a buffer that 
-you want to give to the controller:
+you want to give to the controller::
 
 	/* ask the controller to read the sense status into "sense_buffer" */
 	mbox.bufstart = virt_to_bus(&sense_buffer);
@@ -112,7 +122,7 @@ you want to give to the controller:
 	mbox.status = 0;
 	notify_controller(&mbox);
 
-And you generally _never_ want to use the physical address, because you can't
+And you generally **never** want to use the physical address, because you can't
 use that from the CPU (the CPU only uses translated virtual addresses), and
 you can't use it from the bus master. 
 
@@ -124,8 +134,10 @@ be remapped as measured in units of pages, a.k.a. the pfn (the memory
 management layer doesn't know about devices outside the CPU, so it
 shouldn't need to know about "bus addresses" etc).
 
-NOTE NOTE NOTE! The above is only one part of the whole equation. The above
-only talks about "real memory", that is, CPU memory (RAM). 
+.. note::
+
+	The above is only one part of the whole equation. The above
+	only talks about "real memory", that is, CPU memory (RAM).
 
 There is a completely different type of memory too, and that's the "shared
 memory" on the PCI or ISA bus. That's generally not RAM (although in the case
@@ -137,20 +149,22 @@ whatever, and there is only one way to access it: the readb/writeb and
 related functions. You should never take the address of such memory, because
 there is really nothing you can do with such an address: it's not
 conceptually in the same memory space as "real memory" at all, so you cannot
-just dereference a pointer. (Sadly, on x86 it _is_ in the same memory space,
+just dereference a pointer. (Sadly, on x86 it **is** in the same memory space,
 so on x86 it actually works to just deference a pointer, but it's not
 portable). 
 
-For such memory, you can do things like
+For such memory, you can do things like:
+
+ - reading::
 
- - reading:
 	/*
 	 * read first 32 bits from ISA memory at 0xC0000, aka
 	 * C000:0000 in DOS terms
 	 */
 	unsigned int signature = isa_readl(0xC0000);
 
- - remapping and writing:
+ - remapping and writing::
+
 	/*
 	 * remap framebuffer PCI memory area at 0xFC000000,
 	 * size 1MB, so that we can access it: We can directly
@@ -165,7 +179,8 @@ For such memory, you can do things like
 	/* unmap when we unload the driver */
 	iounmap(baseptr);
 
- - copying and clearing:
+ - copying and clearing::
+
 	/* get the 6-byte Ethernet address at ISA address E000:0040 */
 	memcpy_fromio(kernel_buffer, 0xE0040, 6);
 	/* write a packet to the driver */
@@ -181,10 +196,10 @@ happy that your driver works ;)
 Note that kernel versions 2.0.x (and earlier) mistakenly called the
 ioremap() function "vremap()".  ioremap() is the proper name, but I
 didn't think straight when I wrote it originally.  People who have to
-support both can do something like:
+support both can do something like::
  
 	/* support old naming silliness */
-	#if LINUX_VERSION_CODE < 0x020100                                     
+	#if LINUX_VERSION_CODE < 0x020100
 	#define ioremap vremap
 	#define iounmap vfree                                                     
 	#endif
@@ -196,13 +211,10 @@ And the above sounds worse than it really is.  Most real drivers really
 don't do all that complex things (or rather: the complexity is not so
 much in the actual IO accesses as in error handling and timeouts etc). 
 It's generally not hard to fix drivers, and in many cases the code
-actually looks better afterwards:
+actually looks better afterwards::
 
 	unsigned long signature = *(unsigned int *) 0xC0000;
 		vs
 	unsigned long signature = readl(0xC0000);
 
 I think the second version actually is more readable, no?
-
-		Linus
-
diff --git a/Documentation/cachetlb.txt b/Documentation/cachetlb.txt
index 3f9f808b5119..6eb9d3f090cd 100644
--- a/Documentation/cachetlb.txt
+++ b/Documentation/cachetlb.txt
@@ -1,7 +1,8 @@
-		Cache and TLB Flushing
-		     Under Linux
+==================================
+Cache and TLB Flushing Under Linux
+==================================
 
-	    David S. Miller <davem@redhat.com>
+:Author: David S. Miller <davem@redhat.com>
 
 This document describes the cache/tlb flushing interfaces called
 by the Linux VM subsystem.  It enumerates over each interface,
@@ -28,7 +29,7 @@ Therefore when software page table changes occur, the kernel will
 invoke one of the following flush methods _after_ the page table
 changes occur:
 
-1) void flush_tlb_all(void)
+1) ``void flush_tlb_all(void)``
 
 	The most severe flush of all.  After this interface runs,
 	any previous page table modification whatsoever will be
@@ -37,7 +38,7 @@ changes occur:
 	This is usually invoked when the kernel page tables are
 	changed, since such translations are "global" in nature.
 
-2) void flush_tlb_mm(struct mm_struct *mm)
+2) ``void flush_tlb_mm(struct mm_struct *mm)``
 
 	This interface flushes an entire user address space from
 	the TLB.  After running, this interface must make sure that
@@ -49,8 +50,8 @@ changes occur:
 	page table operations such as what happens during
 	fork, and exec.
 
-3) void flush_tlb_range(struct vm_area_struct *vma,
-			unsigned long start, unsigned long end)
+3) ``void flush_tlb_range(struct vm_area_struct *vma,
+   unsigned long start, unsigned long end)``
 
 	Here we are flushing a specific range of (user) virtual
 	address translations from the TLB.  After running, this
@@ -69,7 +70,7 @@ changes occur:
 	call flush_tlb_page (see below) for each entry which may be
 	modified.
 
-4) void flush_tlb_page(struct vm_area_struct *vma, unsigned long addr)
+4) ``void flush_tlb_page(struct vm_area_struct *vma, unsigned long addr)``
 
 	This time we need to remove the PAGE_SIZE sized translation
 	from the TLB.  The 'vma' is the backing structure used by
@@ -87,8 +88,8 @@ changes occur:
 
 	This is used primarily during fault processing.
 
-5) void update_mmu_cache(struct vm_area_struct *vma,
-			 unsigned long address, pte_t *ptep)
+5) ``void update_mmu_cache(struct vm_area_struct *vma,
+   unsigned long address, pte_t *ptep)``
 
 	At the end of every page fault, this routine is invoked to
 	tell the architecture specific code that a translation
@@ -100,7 +101,7 @@ changes occur:
 	translations for software managed TLB configurations.
 	The sparc64 port currently does this.
 
-6) void tlb_migrate_finish(struct mm_struct *mm)
+6) ``void tlb_migrate_finish(struct mm_struct *mm)``
 
 	This interface is called at the end of an explicit
 	process migration. This interface provides a hook
@@ -112,7 +113,7 @@ changes occur:
 
 Next, we have the cache flushing interfaces.  In general, when Linux
 is changing an existing virtual-->physical mapping to a new value,
-the sequence will be in one of the following forms:
+the sequence will be in one of the following forms::
 
 	1) flush_cache_mm(mm);
 	   change_all_page_tables_of(mm);
@@ -143,7 +144,7 @@ and have no dependency on translation information.
 
 Here are the routines, one by one:
 
-1) void flush_cache_mm(struct mm_struct *mm)
+1) ``void flush_cache_mm(struct mm_struct *mm)``
 
 	This interface flushes an entire user address space from
 	the caches.  That is, after running, there will be no cache
@@ -152,7 +153,7 @@ Here are the routines, one by one:
 	This interface is used to handle whole address space
 	page table operations such as what happens during exit and exec.
 
-2) void flush_cache_dup_mm(struct mm_struct *mm)
+2) ``void flush_cache_dup_mm(struct mm_struct *mm)``
 
 	This interface flushes an entire user address space from
 	the caches.  That is, after running, there will be no cache
@@ -164,8 +165,8 @@ Here are the routines, one by one:
 	This option is separate from flush_cache_mm to allow some
 	optimizations for VIPT caches.
 
-3) void flush_cache_range(struct vm_area_struct *vma,
-			  unsigned long start, unsigned long end)
+3) ``void flush_cache_range(struct vm_area_struct *vma,
+   unsigned long start, unsigned long end)``
 
 	Here we are flushing a specific range of (user) virtual
 	addresses from the cache.  After running, there will be no
@@ -181,7 +182,7 @@ Here are the routines, one by one:
 	call flush_cache_page (see below) for each entry which may be
 	modified.
 
-4) void flush_cache_page(struct vm_area_struct *vma, unsigned long addr, unsigned long pfn)
+4) ``void flush_cache_page(struct vm_area_struct *vma, unsigned long addr, unsigned long pfn)``
 
 	This time we need to remove a PAGE_SIZE sized range
 	from the cache.  The 'vma' is the backing structure used by
@@ -202,7 +203,7 @@ Here are the routines, one by one:
 
 	This is used primarily during fault processing.
 
-5) void flush_cache_kmaps(void)
+5) ``void flush_cache_kmaps(void)``
 
 	This routine need only be implemented if the platform utilizes
 	highmem.  It will be called right before all of the kmaps
@@ -214,8 +215,8 @@ Here are the routines, one by one:
 
 	This routing should be implemented in asm/highmem.h
 
-6) void flush_cache_vmap(unsigned long start, unsigned long end)
-   void flush_cache_vunmap(unsigned long start, unsigned long end)
+6) ``void flush_cache_vmap(unsigned long start, unsigned long end)``
+   ``void flush_cache_vunmap(unsigned long start, unsigned long end)``
 
 	Here in these two interfaces we are flushing a specific range
 	of (kernel) virtual addresses from the cache.  After running,
@@ -243,8 +244,10 @@ size).  This setting will force the SYSv IPC layer to only allow user
 processes to mmap shared memory at address which are a multiple of
 this value.
 
-NOTE: This does not fix shared mmaps, check out the sparc64 port for
-one way to solve this (in particular SPARC_FLAG_MMAPSHARED).
+.. note::
+
+  This does not fix shared mmaps, check out the sparc64 port for
+  one way to solve this (in particular SPARC_FLAG_MMAPSHARED).
 
 Next, you have to solve the D-cache aliasing issue for all
 other cases.  Please keep in mind that fact that, for a given page
@@ -255,8 +258,8 @@ physical page into its address space, by implication the D-cache
 aliasing problem has the potential to exist since the kernel already
 maps this page at its virtual address.
 
-  void copy_user_page(void *to, void *from, unsigned long addr, struct page *page)
-  void clear_user_page(void *to, unsigned long addr, struct page *page)
+  ``void copy_user_page(void *to, void *from, unsigned long addr, struct page *page)``
+  ``void clear_user_page(void *to, unsigned long addr, struct page *page)``
 
 	These two routines store data in user anonymous or COW
 	pages.  It allows a port to efficiently avoid D-cache alias
@@ -276,14 +279,16 @@ maps this page at its virtual address.
 	If D-cache aliasing is not an issue, these two routines may
 	simply call memcpy/memset directly and do nothing more.
 
-  void flush_dcache_page(struct page *page)
+  ``void flush_dcache_page(struct page *page)``
 
 	Any time the kernel writes to a page cache page, _OR_
 	the kernel is about to read from a page cache page and
 	user space shared/writable mappings of this page potentially
 	exist, this routine is called.
 
-	NOTE: This routine need only be called for page cache pages
+	.. note::
+
+	      This routine need only be called for page cache pages
 	      which can potentially ever be mapped into the address
 	      space of a user process.  So for example, VFS layer code
 	      handling vfs symlinks in the page cache need not call
@@ -322,18 +327,19 @@ maps this page at its virtual address.
 	made of this flag bit, and if set the flush is done and the flag
 	bit is cleared.
 
-	IMPORTANT NOTE: It is often important, if you defer the flush,
+	.. important::
+
+			It is often important, if you defer the flush,
 			that the actual flush occurs on the same CPU
 			as did the cpu stores into the page to make it
 			dirty.  Again, see sparc64 for examples of how
 			to deal with this.
 
-  void copy_to_user_page(struct vm_area_struct *vma, struct page *page,
-                         unsigned long user_vaddr,
-                         void *dst, void *src, int len)
-  void copy_from_user_page(struct vm_area_struct *vma, struct page *page,
-                           unsigned long user_vaddr,
-                           void *dst, void *src, int len)
+  ``void copy_to_user_page(struct vm_area_struct *vma, struct page *page,
+  unsigned long user_vaddr, void *dst, void *src, int len)``
+  ``void copy_from_user_page(struct vm_area_struct *vma, struct page *page,
+  unsigned long user_vaddr, void *dst, void *src, int len)``
+
 	When the kernel needs to copy arbitrary data in and out
 	of arbitrary user pages (f.e. for ptrace()) it will use
 	these two routines.
@@ -344,8 +350,9 @@ maps this page at its virtual address.
 	likely that you will need to flush the instruction cache
 	for copy_to_user_page().
 
-  void flush_anon_page(struct vm_area_struct *vma, struct page *page,
-                       unsigned long vmaddr)
+  ``void flush_anon_page(struct vm_area_struct *vma, struct page *page,
+  unsigned long vmaddr)``
+
   	When the kernel needs to access the contents of an anonymous
 	page, it calls this function (currently only
 	get_user_pages()).  Note: flush_dcache_page() deliberately
@@ -354,7 +361,8 @@ maps this page at its virtual address.
 	architectures).  For incoherent architectures, it should flush
 	the cache of the page at vmaddr.
 
-  void flush_kernel_dcache_page(struct page *page)
+  ``void flush_kernel_dcache_page(struct page *page)``
+
 	When the kernel needs to modify a user page is has obtained
 	with kmap, it calls this function after all modifications are
 	complete (but before kunmapping it) to bring the underlying
@@ -366,14 +374,16 @@ maps this page at its virtual address.
 	the kernel cache for page (using page_address(page)).
 
 
-  void flush_icache_range(unsigned long start, unsigned long end)
+  ``void flush_icache_range(unsigned long start, unsigned long end)``
+
   	When the kernel stores into addresses that it will execute
 	out of (eg when loading modules), this function is called.
 
 	If the icache does not snoop stores then this routine will need
 	to flush it.
 
-  void flush_icache_page(struct vm_area_struct *vma, struct page *page)
+  ``void flush_icache_page(struct vm_area_struct *vma, struct page *page)``
+
 	All the functionality of flush_icache_page can be implemented in
 	flush_dcache_page and update_mmu_cache. In the future, the hope
 	is to remove this interface completely.
@@ -387,7 +397,8 @@ the kernel trying to do I/O to vmap areas must manually manage
 coherency.  It must do this by flushing the vmap range before doing
 I/O and invalidating it after the I/O returns.
 
-  void flush_kernel_vmap_range(void *vaddr, int size)
+  ``void flush_kernel_vmap_range(void *vaddr, int size)``
+
        flushes the kernel cache for a given virtual address range in
        the vmap area.  This is to make sure that any data the kernel
        modified in the vmap range is made visible to the physical
@@ -395,7 +406,8 @@ I/O and invalidating it after the I/O returns.
        Note that this API does *not* also flush the offset map alias
        of the area.
 
-  void invalidate_kernel_vmap_range(void *vaddr, int size) invalidates
+  ``void invalidate_kernel_vmap_range(void *vaddr, int size) invalidates``
+
        the cache for a given virtual address range in the vmap area
        which prevents the processor from making the cache stale by
        speculatively reading data while the I/O was occurring to the
diff --git a/Documentation/cgroup-v2.txt b/Documentation/cgroup-v2.txt
index e6101976e0f1..bde177103567 100644
--- a/Documentation/cgroup-v2.txt
+++ b/Documentation/cgroup-v2.txt
@@ -1,7 +1,9 @@
-
+================
 Control Group v2
+================
 
-October, 2015		Tejun Heo <tj@kernel.org>
+:Date: October, 2015
+:Author: Tejun Heo <tj@kernel.org>
 
 This is the authoritative documentation on the design, interface and
 conventions of cgroup v2.  It describes all userland-visible aspects
@@ -9,70 +11,72 @@ of cgroup including core and specific controller behaviors.  All
 future changes must be reflected in this document.  Documentation for
 v1 is available under Documentation/cgroup-v1/.
 
-CONTENTS
-
-1. Introduction
-  1-1. Terminology
-  1-2. What is cgroup?
-2. Basic Operations
-  2-1. Mounting
-  2-2. Organizing Processes
-  2-3. [Un]populated Notification
-  2-4. Controlling Controllers
-    2-4-1. Enabling and Disabling
-    2-4-2. Top-down Constraint
-    2-4-3. No Internal Process Constraint
-  2-5. Delegation
-    2-5-1. Model of Delegation
-    2-5-2. Delegation Containment
-  2-6. Guidelines
-    2-6-1. Organize Once and Control
-    2-6-2. Avoid Name Collisions
-3. Resource Distribution Models
-  3-1. Weights
-  3-2. Limits
-  3-3. Protections
-  3-4. Allocations
-4. Interface Files
-  4-1. Format
-  4-2. Conventions
-  4-3. Core Interface Files
-5. Controllers
-  5-1. CPU
-    5-1-1. CPU Interface Files
-  5-2. Memory
-    5-2-1. Memory Interface Files
-    5-2-2. Usage Guidelines
-    5-2-3. Memory Ownership
-  5-3. IO
-    5-3-1. IO Interface Files
-    5-3-2. Writeback
-  5-4. PID
-    5-4-1. PID Interface Files
-  5-5. RDMA
-    5-5-1. RDMA Interface Files
-  5-6. Misc
-    5-6-1. perf_event
-6. Namespace
-  6-1. Basics
-  6-2. The Root and Views
-  6-3. Migration and setns(2)
-  6-4. Interaction with Other Namespaces
-P. Information on Kernel Programming
-  P-1. Filesystem Support for Writeback
-D. Deprecated v1 Core Features
-R. Issues with v1 and Rationales for v2
-  R-1. Multiple Hierarchies
-  R-2. Thread Granularity
-  R-3. Competition Between Inner Nodes and Threads
-  R-4. Other Interface Issues
-  R-5. Controller Issues and Remedies
-    R-5-1. Memory
-
-
-1. Introduction
-
-1-1. Terminology
+.. CONTENTS
+
+   1. Introduction
+     1-1. Terminology
+     1-2. What is cgroup?
+   2. Basic Operations
+     2-1. Mounting
+     2-2. Organizing Processes
+     2-3. [Un]populated Notification
+     2-4. Controlling Controllers
+       2-4-1. Enabling and Disabling
+       2-4-2. Top-down Constraint
+       2-4-3. No Internal Process Constraint
+     2-5. Delegation
+       2-5-1. Model of Delegation
+       2-5-2. Delegation Containment
+     2-6. Guidelines
+       2-6-1. Organize Once and Control
+       2-6-2. Avoid Name Collisions
+   3. Resource Distribution Models
+     3-1. Weights
+     3-2. Limits
+     3-3. Protections
+     3-4. Allocations
+   4. Interface Files
+     4-1. Format
+     4-2. Conventions
+     4-3. Core Interface Files
+   5. Controllers
+     5-1. CPU
+       5-1-1. CPU Interface Files
+     5-2. Memory
+       5-2-1. Memory Interface Files
+       5-2-2. Usage Guidelines
+       5-2-3. Memory Ownership
+     5-3. IO
+       5-3-1. IO Interface Files
+       5-3-2. Writeback
+     5-4. PID
+       5-4-1. PID Interface Files
+     5-5. RDMA
+       5-5-1. RDMA Interface Files
+     5-6. Misc
+       5-6-1. perf_event
+   6. Namespace
+     6-1. Basics
+     6-2. The Root and Views
+     6-3. Migration and setns(2)
+     6-4. Interaction with Other Namespaces
+   P. Information on Kernel Programming
+     P-1. Filesystem Support for Writeback
+   D. Deprecated v1 Core Features
+   R. Issues with v1 and Rationales for v2
+     R-1. Multiple Hierarchies
+     R-2. Thread Granularity
+     R-3. Competition Between Inner Nodes and Threads
+     R-4. Other Interface Issues
+     R-5. Controller Issues and Remedies
+       R-5-1. Memory
+
+
+Introduction
+============
+
+Terminology
+-----------
 
 "cgroup" stands for "control group" and is never capitalized.  The
 singular form is used to designate the whole feature and also as a
@@ -80,7 +84,8 @@ qualifier as in "cgroup controllers".  When explicitly referring to
 multiple individual control groups, the plural form "cgroups" is used.
 
 
-1-2. What is cgroup?
+What is cgroup?
+---------------
 
 cgroup is a mechanism to organize processes hierarchically and
 distribute system resources along the hierarchy in a controlled and
@@ -110,12 +115,14 @@ restrictions set closer to the root in the hierarchy can not be
 overridden from further away.
 
 
-2. Basic Operations
+Basic Operations
+================
 
-2-1. Mounting
+Mounting
+--------
 
 Unlike v1, cgroup v2 has only single hierarchy.  The cgroup v2
-hierarchy can be mounted with the following mount command.
+hierarchy can be mounted with the following mount command::
 
   # mount -t cgroup2 none $MOUNT_POINT
 
@@ -160,10 +167,11 @@ cgroup v2 currently supports the following mount options.
 	Delegation section for details.
 
 
-2-2. Organizing Processes
+Organizing Processes
+--------------------
 
 Initially, only the root cgroup exists to which all processes belong.
-A child cgroup can be created by creating a sub-directory.
+A child cgroup can be created by creating a sub-directory::
 
   # mkdir $CGROUP_NAME
 
@@ -190,28 +198,29 @@ moved to another cgroup.
 A cgroup which doesn't have any children or live processes can be
 destroyed by removing the directory.  Note that a cgroup which doesn't
 have any children and is associated only with zombie processes is
-considered empty and can be removed.
+considered empty and can be removed::
 
   # rmdir $CGROUP_NAME
 
 "/proc/$PID/cgroup" lists a process's cgroup membership.  If legacy
 cgroup is in use in the system, this file may contain multiple lines,
 one for each hierarchy.  The entry for cgroup v2 is always in the
-format "0::$PATH".
+format "0::$PATH"::
 
   # cat /proc/842/cgroup
   ...
   0::/test-cgroup/test-cgroup-nested
 
 If the process becomes a zombie and the cgroup it was associated with
-is removed subsequently, " (deleted)" is appended to the path.
+is removed subsequently, " (deleted)" is appended to the path::
 
   # cat /proc/842/cgroup
   ...
   0::/test-cgroup/test-cgroup-nested (deleted)
 
 
-2-3. [Un]populated Notification
+[Un]populated Notification
+--------------------------
 
 Each non-root cgroup has a "cgroup.events" file which contains
 "populated" field indicating whether the cgroup's sub-hierarchy has
@@ -222,7 +231,7 @@ example, to start a clean-up operation after all processes of a given
 sub-hierarchy have exited.  The populated state updates and
 notifications are recursive.  Consider the following sub-hierarchy
 where the numbers in the parentheses represent the numbers of processes
-in each cgroup.
+in each cgroup::
 
   A(4) - B(0) - C(1)
               \ D(0)
@@ -233,18 +242,20 @@ file modified events will be generated on the "cgroup.events" files of
 both cgroups.
 
 
-2-4. Controlling Controllers
+Controlling Controllers
+-----------------------
 
-2-4-1. Enabling and Disabling
+Enabling and Disabling
+~~~~~~~~~~~~~~~~~~~~~~
 
 Each cgroup has a "cgroup.controllers" file which lists all
-controllers available for the cgroup to enable.
+controllers available for the cgroup to enable::
 
   # cat cgroup.controllers
   cpu io memory
 
 No controller is enabled by default.  Controllers can be enabled and
-disabled by writing to the "cgroup.subtree_control" file.
+disabled by writing to the "cgroup.subtree_control" file::
 
   # echo "+cpu +memory -io" > cgroup.subtree_control
 
@@ -256,7 +267,7 @@ are specified, the last one is effective.
 Enabling a controller in a cgroup indicates that the distribution of
 the target resource across its immediate children will be controlled.
 Consider the following sub-hierarchy.  The enabled controllers are
-listed in parentheses.
+listed in parentheses::
 
   A(cpu,memory) - B(memory) - C()
                             \ D()
@@ -276,7 +287,8 @@ controller interface files - anything which doesn't start with
 "cgroup." are owned by the parent rather than the cgroup itself.
 
 
-2-4-2. Top-down Constraint
+Top-down Constraint
+~~~~~~~~~~~~~~~~~~~
 
 Resources are distributed top-down and a cgroup can further distribute
 a resource only if the resource has been distributed to it from the
@@ -287,7 +299,8 @@ the parent has the controller enabled and a controller can't be
 disabled if one or more children have it enabled.
 
 
-2-4-3. No Internal Process Constraint
+No Internal Process Constraint
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
 
 Non-root cgroups can only distribute resources to their children when
 they don't have any processes of their own.  In other words, only
@@ -314,9 +327,11 @@ children before enabling controllers in its "cgroup.subtree_control"
 file.
 
 
-2-5. Delegation
+Delegation
+----------
 
-2-5-1. Model of Delegation
+Model of Delegation
+~~~~~~~~~~~~~~~~~~~
 
 A cgroup can be delegated in two ways.  First, to a less privileged
 user by granting write access of the directory and its "cgroup.procs"
@@ -345,7 +360,8 @@ cgroups in or nesting depth of a delegated sub-hierarchy; however,
 this may be limited explicitly in the future.
 
 
-2-5-2. Delegation Containment
+Delegation Containment
+~~~~~~~~~~~~~~~~~~~~~~
 
 A delegated sub-hierarchy is contained in the sense that processes
 can't be moved into or out of the sub-hierarchy by the delegatee.
@@ -366,7 +382,7 @@ in from or push out to outside the sub-hierarchy.
 
 For an example, let's assume cgroups C0 and C1 have been delegated to
 user U0 who created C00, C01 under C0 and C10 under C1 as follows and
-all processes under C0 and C1 belong to U0.
+all processes under C0 and C1 belong to U0::
 
   ~~~~~~~~~~~~~ - C0 - C00
   ~ cgroup    ~      \ C01
@@ -386,9 +402,11 @@ namespace of the process which is attempting the migration.  If either
 is not reachable, the migration is rejected with -ENOENT.
 
 
-2-6. Guidelines
+Guidelines
+----------
 
-2-6-1. Organize Once and Control
+Organize Once and Control
+~~~~~~~~~~~~~~~~~~~~~~~~~
 
 Migrating a process across cgroups is a relatively expensive operation
 and stateful resources such as memory are not moved together with the
@@ -404,7 +422,8 @@ distribution can be made by changing controller configuration through
 the interface files.
 
 
-2-6-2. Avoid Name Collisions
+Avoid Name Collisions
+~~~~~~~~~~~~~~~~~~~~~
 
 Interface files for a cgroup and its children cgroups occupy the same
 directory and it is possible to create children cgroups which collide
@@ -422,14 +441,16 @@ cgroup doesn't do anything to prevent name collisions and it's the
 user's responsibility to avoid them.
 
 
-3. Resource Distribution Models
+Resource Distribution Models
+============================
 
 cgroup controllers implement several resource distribution schemes
 depending on the resource type and expected use cases.  This section
 describes major schemes in use along with their expected behaviors.
 
 
-3-1. Weights
+Weights
+-------
 
 A parent's resource is distributed by adding up the weights of all
 active children and giving each the fraction matching the ratio of its
@@ -450,7 +471,8 @@ process migrations.
 and is an example of this type.
 
 
-3-2. Limits
+Limits
+------
 
 A child can only consume upto the configured amount of the resource.
 Limits can be over-committed - the sum of the limits of children can
@@ -466,7 +488,8 @@ process migrations.
 on an IO device and is an example of this type.
 
 
-3-3. Protections
+Protections
+-----------
 
 A cgroup is protected to be allocated upto the configured amount of
 the resource if the usages of all its ancestors are under their
@@ -486,7 +509,8 @@ process migrations.
 example of this type.
 
 
-3-4. Allocations
+Allocations
+-----------
 
 A cgroup is exclusively allocated a certain amount of a finite
 resource.  Allocations can't be over-committed - the sum of the
@@ -505,12 +529,14 @@ may be rejected.
 type.
 
 
-4. Interface Files
+Interface Files
+===============
 
-4-1. Format
+Format
+------
 
 All interface files should be in one of the following formats whenever
-possible.
+possible::
 
   New-line separated values
   (when only one value can be written at once)
@@ -545,7 +571,8 @@ can be written at a time.  For nested keyed files, the sub key pairs
 may be specified in any order and not all pairs have to be specified.
 
 
-4-2. Conventions
+Conventions
+-----------
 
 - Settings for a single feature should be contained in a single file.
 
@@ -581,25 +608,25 @@ may be specified in any order and not all pairs have to be specified.
   with "default" as the value must not appear when read.
 
   For example, a setting which is keyed by major:minor device numbers
-  with integer values may look like the following.
+  with integer values may look like the following::
 
     # cat cgroup-example-interface-file
     default 150
     8:0 300
 
-  The default value can be updated by
+  The default value can be updated by::
 
     # echo 125 > cgroup-example-interface-file
 
-  or
+  or::
 
     # echo "default 125" > cgroup-example-interface-file
 
-  An override can be set by
+  An override can be set by::
 
     # echo "8:16 170" > cgroup-example-interface-file
 
-  and cleared by
+  and cleared by::
 
     # echo "8:0 default" > cgroup-example-interface-file
     # cat cgroup-example-interface-file
@@ -612,12 +639,12 @@ may be specified in any order and not all pairs have to be specified.
   generated on the file.
 
 
-4-3. Core Interface Files
+Core Interface Files
+--------------------
 
 All cgroup core files are prefixed with "cgroup."
 
   cgroup.procs
-
 	A read-write new-line separated values file which exists on
 	all cgroups.
 
@@ -643,7 +670,6 @@ All cgroup core files are prefixed with "cgroup."
 	should be granted along with the containing directory.
 
   cgroup.controllers
-
 	A read-only space separated values file which exists on all
 	cgroups.
 
@@ -651,7 +677,6 @@ All cgroup core files are prefixed with "cgroup."
 	the cgroup.  The controllers are not ordered.
 
   cgroup.subtree_control
-
 	A read-write space separated values file which exists on all
 	cgroups.  Starts out empty.
 
@@ -667,23 +692,25 @@ All cgroup core files are prefixed with "cgroup."
 	operations are specified, either all succeed or all fail.
 
   cgroup.events
-
 	A read-only flat-keyed file which exists on non-root cgroups.
 	The following entries are defined.  Unless specified
 	otherwise, a value change in this file generates a file
 	modified event.
 
 	  populated
-
 		1 if the cgroup or its descendants contains any live
 		processes; otherwise, 0.
 
 
-5. Controllers
+Controllers
+===========
 
-5-1. CPU
+CPU
+---
 
-[NOTE: The interface for the cpu controller hasn't been merged yet]
+.. note::
+
+	The interface for the cpu controller hasn't been merged yet
 
 The "cpu" controllers regulates distribution of CPU cycles.  This
 controller implements weight and absolute bandwidth limit models for
@@ -691,36 +718,34 @@ normal scheduling policy and absolute bandwidth allocation model for
 realtime scheduling policy.
 
 
-5-1-1. CPU Interface Files
+CPU Interface Files
+~~~~~~~~~~~~~~~~~~~
 
 All time durations are in microseconds.
 
   cpu.stat
-
 	A read-only flat-keyed file which exists on non-root cgroups.
 
-	It reports the following six stats.
+	It reports the following six stats:
 
-	  usage_usec
-	  user_usec
-	  system_usec
-	  nr_periods
-	  nr_throttled
-	  throttled_usec
+	- usage_usec
+	- user_usec
+	- system_usec
+	- nr_periods
+	- nr_throttled
+	- throttled_usec
 
   cpu.weight
-
 	A read-write single value file which exists on non-root
 	cgroups.  The default is "100".
 
 	The weight in the range [1, 10000].
 
   cpu.max
-
 	A read-write two value file which exists on non-root cgroups.
 	The default is "max 100000".
 
-	The maximum bandwidth limit.  It's in the following format.
+	The maximum bandwidth limit.  It's in the following format::
 
 	  $MAX $PERIOD
 
@@ -729,9 +754,10 @@ All time durations are in microseconds.
 	one number is written, $MAX is updated.
 
   cpu.rt.max
+	.. note::
 
-  [NOTE: The semantics of this file is still under discussion and the
-   interface hasn't been merged yet]
+	   The semantics of this file is still under discussion and the
+	   interface hasn't been merged yet
 
 	A read-write two value file which exists on all cgroups.
 	The default is "0 100000".
@@ -739,7 +765,7 @@ All time durations are in microseconds.
 	The maximum realtime runtime allocation.  Over-committing
 	configurations are disallowed and process migrations are
 	rejected if not enough bandwidth is available.  It's in the
-	following format.
+	following format::
 
 	  $MAX $PERIOD
 
@@ -748,7 +774,8 @@ All time durations are in microseconds.
 	updated.
 
 
-5-2. Memory
+Memory
+------
 
 The "memory" controller regulates distribution of memory.  Memory is
 stateful and implements both limit and protection models.  Due to the
@@ -770,14 +797,14 @@ following types of memory usages are tracked.
 The above list may expand in the future for better coverage.
 
 
-5-2-1. Memory Interface Files
+Memory Interface Files
+~~~~~~~~~~~~~~~~~~~~~~
 
 All memory amounts are in bytes.  If a value which is not aligned to
 PAGE_SIZE is written, the value may be rounded up to the closest
 PAGE_SIZE multiple when read back.
 
   memory.current
-
 	A read-only single value file which exists on non-root
 	cgroups.
 
@@ -785,7 +812,6 @@ PAGE_SIZE multiple when read back.
 	and its descendants.
 
   memory.low
-
 	A read-write single value file which exists on non-root
 	cgroups.  The default is "0".
 
@@ -798,7 +824,6 @@ PAGE_SIZE multiple when read back.
 	protection is discouraged.
 
   memory.high
-
 	A read-write single value file which exists on non-root
 	cgroups.  The default is "max".
 
@@ -811,7 +836,6 @@ PAGE_SIZE multiple when read back.
 	under extreme conditions the limit may be breached.
 
   memory.max
-
 	A read-write single value file which exists on non-root
 	cgroups.  The default is "max".
 
@@ -826,21 +850,18 @@ PAGE_SIZE multiple when read back.
 	utility is limited to providing the final safety net.
 
   memory.events
-
 	A read-only flat-keyed file which exists on non-root cgroups.
 	The following entries are defined.  Unless specified
 	otherwise, a value change in this file generates a file
 	modified event.
 
 	  low
-
 		The number of times the cgroup is reclaimed due to
 		high memory pressure even though its usage is under
 		the low boundary.  This usually indicates that the low
 		boundary is over-committed.
 
 	  high
-
 		The number of times processes of the cgroup are
 		throttled and routed to perform direct memory reclaim
 		because the high memory boundary was exceeded.  For a
@@ -849,13 +870,11 @@ PAGE_SIZE multiple when read back.
 		occurrences are expected.
 
 	  max
-
 		The number of times the cgroup's memory usage was
 		about to go over the max boundary.  If direct reclaim
 		fails to bring it down, the cgroup goes to OOM state.
 
 	  oom
-
 		The number of time the cgroup's memory usage was
 		reached the limit and allocation was about to fail.
 
@@ -864,16 +883,14 @@ PAGE_SIZE multiple when read back.
 
 		Failed allocation in its turn could be returned into
 		userspace as -ENOMEM or siletly ignored in cases like
-		disk readahead.	 For now OOM in memory cgroup kills
+		disk readahead.  For now OOM in memory cgroup kills
 		tasks iff shortage has happened inside page fault.
 
 	  oom_kill
-
 		The number of processes belonging to this cgroup
 		killed by any kind of OOM killer.
 
   memory.stat
-
 	A read-only flat-keyed file which exists on non-root cgroups.
 
 	This breaks down the cgroup's memory footprint into different
@@ -887,73 +904,55 @@ PAGE_SIZE multiple when read back.
 	fixed position; use the keys to look up specific values!
 
 	  anon
-
 		Amount of memory used in anonymous mappings such as
 		brk(), sbrk(), and mmap(MAP_ANONYMOUS)
 
 	  file
-
 		Amount of memory used to cache filesystem data,
 		including tmpfs and shared memory.
 
 	  kernel_stack
-
 		Amount of memory allocated to kernel stacks.
 
 	  slab
-
 		Amount of memory used for storing in-kernel data
 		structures.
 
 	  sock
-
 		Amount of memory used in network transmission buffers
 
 	  shmem
-
 		Amount of cached filesystem data that is swap-backed,
 		such as tmpfs, shm segments, shared anonymous mmap()s
 
 	  file_mapped
-
 		Amount of cached filesystem data mapped with mmap()
 
 	  file_dirty
-
 		Amount of cached filesystem data that was modified but
 		not yet written back to disk
 
 	  file_writeback
-
 		Amount of cached filesystem data that was modified and
 		is currently being written back to disk
 
-	  inactive_anon
-	  active_anon
-	  inactive_file
-	  active_file
-	  unevictable
-
+	  inactive_anon, active_anon, inactive_file, active_file, unevictable
 		Amount of memory, swap-backed and filesystem-backed,
 		on the internal memory management lists used by the
 		page reclaim algorithm
 
 	  slab_reclaimable
-
 		Part of "slab" that might be reclaimed, such as
 		dentries and inodes.
 
 	  slab_unreclaimable
-
 		Part of "slab" that cannot be reclaimed on memory
 		pressure.
 
 	  pgfault
-
 		Total number of page faults incurred
 
 	  pgmajfault
-
 		Number of major page faults incurred
 
 	  workingset_refault
@@ -997,7 +996,6 @@ PAGE_SIZE multiple when read back.
 		Amount of reclaimed lazyfree pages
 
   memory.swap.current
-
 	A read-only single value file which exists on non-root
 	cgroups.
 
@@ -1005,7 +1003,6 @@ PAGE_SIZE multiple when read back.
 	and its descendants.
 
   memory.swap.max
-
 	A read-write single value file which exists on non-root
 	cgroups.  The default is "max".
 
@@ -1013,7 +1010,8 @@ PAGE_SIZE multiple when read back.
 	limit, anonymous meomry of the cgroup will not be swapped out.
 
 
-5-2-2. Usage Guidelines
+Usage Guidelines
+~~~~~~~~~~~~~~~~
 
 "memory.high" is the main mechanism to control memory usage.
 Over-committing on high limit (sum of high limits > available memory)
@@ -1036,7 +1034,8 @@ memory; unfortunately, memory pressure monitoring mechanism isn't
 implemented yet.
 
 
-5-2-3. Memory Ownership
+Memory Ownership
+~~~~~~~~~~~~~~~~
 
 A memory area is charged to the cgroup which instantiated it and stays
 charged to the cgroup until the area is released.  Migrating a process
@@ -1054,7 +1053,8 @@ POSIX_FADV_DONTNEED to relinquish the ownership of memory areas
 belonging to the affected files to ensure correct memory ownership.
 
 
-5-3. IO
+IO
+--
 
 The "io" controller regulates the distribution of IO resources.  This
 controller implements both weight based and absolute bandwidth or IOPS
@@ -1063,28 +1063,29 @@ only if cfq-iosched is in use and neither scheme is available for
 blk-mq devices.
 
 
-5-3-1. IO Interface Files
+IO Interface Files
+~~~~~~~~~~~~~~~~~~
 
   io.stat
-
 	A read-only nested-keyed file which exists on non-root
 	cgroups.
 
 	Lines are keyed by $MAJ:$MIN device numbers and not ordered.
 	The following nested keys are defined.
 
+	  ======	===================
 	  rbytes	Bytes read
 	  wbytes	Bytes written
 	  rios		Number of read IOs
 	  wios		Number of write IOs
+	  ======	===================
 
-	An example read output follows.
+	An example read output follows:
 
 	  8:16 rbytes=1459200 wbytes=314773504 rios=192 wios=353
 	  8:0 rbytes=90430464 wbytes=299008000 rios=8950 wios=1252
 
   io.weight
-
 	A read-write flat-keyed file which exists on non-root cgroups.
 	The default is "default 100".
 
@@ -1098,14 +1099,13 @@ blk-mq devices.
 	$WEIGHT" or simply "$WEIGHT".  Overrides can be set by writing
 	"$MAJ:$MIN $WEIGHT" and unset by writing "$MAJ:$MIN default".
 
-	An example read output follows.
+	An example read output follows::
 
 	  default 100
 	  8:16 200
 	  8:0 50
 
   io.max
-
 	A read-write nested-keyed file which exists on non-root
 	cgroups.
 
@@ -1113,10 +1113,12 @@ blk-mq devices.
 	device numbers and not ordered.  The following nested keys are
 	defined.
 
+	  =====		==================================
 	  rbps		Max read bytes per second
 	  wbps		Max write bytes per second
 	  riops		Max read IO operations per second
 	  wiops		Max write IO operations per second
+	  =====		==================================
 
 	When writing, any number of nested key-value pairs can be
 	specified in any order.  "max" can be specified as the value
@@ -1126,24 +1128,25 @@ blk-mq devices.
 	BPS and IOPS are measured in each IO direction and IOs are
 	delayed if limit is reached.  Temporary bursts are allowed.
 
-	Setting read limit at 2M BPS and write at 120 IOPS for 8:16.
+	Setting read limit at 2M BPS and write at 120 IOPS for 8:16::
 
 	  echo "8:16 rbps=2097152 wiops=120" > io.max
 
-	Reading returns the following.
+	Reading returns the following::
 
 	  8:16 rbps=2097152 wbps=max riops=max wiops=120
 
-	Write IOPS limit can be removed by writing the following.
+	Write IOPS limit can be removed by writing the following::
 
 	  echo "8:16 wiops=max" > io.max
 
-	Reading now returns the following.
+	Reading now returns the following::
 
 	  8:16 rbps=2097152 wbps=max riops=max wiops=max
 
 
-5-3-2. Writeback
+Writeback
+~~~~~~~~~
 
 Page cache is dirtied through buffered writes and shared mmaps and
 written asynchronously to the backing filesystem by the writeback
@@ -1191,22 +1194,19 @@ patterns.
 The sysctl knobs which affect writeback behavior are applied to cgroup
 writeback as follows.
 
-  vm.dirty_background_ratio
-  vm.dirty_ratio
-
+  vm.dirty_background_ratio, vm.dirty_ratio
 	These ratios apply the same to cgroup writeback with the
 	amount of available memory capped by limits imposed by the
 	memory controller and system-wide clean memory.
 
-  vm.dirty_background_bytes
-  vm.dirty_bytes
-
+  vm.dirty_background_bytes, vm.dirty_bytes
 	For cgroup writeback, this is calculated into ratio against
 	total available memory and applied the same way as
 	vm.dirty[_background]_ratio.
 
 
-5-4. PID
+PID
+---
 
 The process number controller is used to allow a cgroup to stop any
 new tasks from being fork()'d or clone()'d after a specified limit is
@@ -1221,17 +1221,16 @@ Note that PIDs used in this controller refer to TIDs, process IDs as
 used by the kernel.
 
 
-5-4-1. PID Interface Files
+PID Interface Files
+~~~~~~~~~~~~~~~~~~~
 
   pids.max
-
 	A read-write single value file which exists on non-root
 	cgroups.  The default is "max".
 
 	Hard limit of number of processes.
 
   pids.current
-
 	A read-only single value file which exists on all cgroups.
 
 	The number of processes currently in the cgroup and its
@@ -1246,12 +1245,14 @@ through fork() or clone(). These will return -EAGAIN if the creation
 of a new process would cause a cgroup policy to be violated.
 
 
-5-5. RDMA
+RDMA
+----
 
 The "rdma" controller regulates the distribution and accounting of
 of RDMA resources.
 
-5-5-1. RDMA Interface Files
+RDMA Interface Files
+~~~~~~~~~~~~~~~~~~~~
 
   rdma.max
 	A readwrite nested-keyed file that exists for all the cgroups
@@ -1264,10 +1265,12 @@ of RDMA resources.
 
 	The following nested keys are defined.
 
+	  ==========	=============================
 	  hca_handle	Maximum number of HCA Handles
 	  hca_object 	Maximum number of HCA Objects
+	  ==========	=============================
 
-	An example for mlx4 and ocrdma device follows.
+	An example for mlx4 and ocrdma device follows::
 
 	  mlx4_0 hca_handle=2 hca_object=2000
 	  ocrdma1 hca_handle=3 hca_object=max
@@ -1276,15 +1279,17 @@ of RDMA resources.
 	A read-only file that describes current resource usage.
 	It exists for all the cgroup except root.
 
-	An example for mlx4 and ocrdma device follows.
+	An example for mlx4 and ocrdma device follows::
 
 	  mlx4_0 hca_handle=1 hca_object=20
 	  ocrdma1 hca_handle=1 hca_object=23
 
 
-5-6. Misc
+Misc
+----
 
-5-6-1. perf_event
+perf_event
+~~~~~~~~~~
 
 perf_event controller, if not mounted on a legacy hierarchy, is
 automatically enabled on the v2 hierarchy so that perf events can
@@ -1292,9 +1297,11 @@ always be filtered by cgroup v2 path.  The controller can still be
 moved to a legacy hierarchy after v2 hierarchy is populated.
 
 
-6. Namespace
+Namespace
+=========
 
-6-1. Basics
+Basics
+------
 
 cgroup namespace provides a mechanism to virtualize the view of the
 "/proc/$PID/cgroup" file and cgroup mounts.  The CLONE_NEWCGROUP clone
@@ -1308,7 +1315,7 @@ Without cgroup namespace, the "/proc/$PID/cgroup" file shows the
 complete path of the cgroup of a process.  In a container setup where
 a set of cgroups and namespaces are intended to isolate processes the
 "/proc/$PID/cgroup" file may leak potential system level information
-to the isolated processes.  For Example:
+to the isolated processes.  For Example::
 
   # cat /proc/self/cgroup
   0::/batchjobs/container_id1
@@ -1316,14 +1323,14 @@ to the isolated processes.  For Example:
 The path '/batchjobs/container_id1' can be considered as system-data
 and undesirable to expose to the isolated processes.  cgroup namespace
 can be used to restrict visibility of this path.  For example, before
-creating a cgroup namespace, one would see:
+creating a cgroup namespace, one would see::
 
   # ls -l /proc/self/ns/cgroup
   lrwxrwxrwx 1 root root 0 2014-07-15 10:37 /proc/self/ns/cgroup -> cgroup:[4026531835]
   # cat /proc/self/cgroup
   0::/batchjobs/container_id1
 
-After unsharing a new namespace, the view changes.
+After unsharing a new namespace, the view changes::
 
   # ls -l /proc/self/ns/cgroup
   lrwxrwxrwx 1 root root 0 2014-07-15 10:35 /proc/self/ns/cgroup -> cgroup:[4026532183]
@@ -1341,7 +1348,8 @@ namespace is destroyed.  The cgroupns root and the actual cgroups
 remain.
 
 
-6-2. The Root and Views
+The Root and Views
+------------------
 
 The 'cgroupns root' for a cgroup namespace is the cgroup in which the
 process calling unshare(2) is running.  For example, if a process in
@@ -1350,7 +1358,7 @@ process calling unshare(2) is running.  For example, if a process in
 init_cgroup_ns, this is the real root ('/') cgroup.
 
 The cgroupns root cgroup does not change even if the namespace creator
-process later moves to a different cgroup.
+process later moves to a different cgroup::
 
   # ~/unshare -c # unshare cgroupns in some cgroup
   # cat /proc/self/cgroup
@@ -1364,7 +1372,7 @@ Each process gets its namespace-specific view of "/proc/$PID/cgroup"
 
 Processes running inside the cgroup namespace will be able to see
 cgroup paths (in /proc/self/cgroup) only inside their root cgroup.
-From within an unshared cgroupns:
+From within an unshared cgroupns::
 
   # sleep 100000 &
   [1] 7353
@@ -1373,7 +1381,7 @@ From within an unshared cgroupns:
   0::/sub_cgrp_1
 
 From the initial cgroup namespace, the real cgroup path will be
-visible:
+visible::
 
   $ cat /proc/7353/cgroup
   0::/batchjobs/container_id1/sub_cgrp_1
@@ -1381,7 +1389,7 @@ visible:
 From a sibling cgroup namespace (that is, a namespace rooted at a
 different cgroup), the cgroup path relative to its own cgroup
 namespace root will be shown.  For instance, if PID 7353's cgroup
-namespace root is at '/batchjobs/container_id2', then it will see
+namespace root is at '/batchjobs/container_id2', then it will see::
 
   # cat /proc/7353/cgroup
   0::/../container_id2/sub_cgrp_1
@@ -1390,13 +1398,14 @@ Note that the relative path always starts with '/' to indicate that
 its relative to the cgroup namespace root of the caller.
 
 
-6-3. Migration and setns(2)
+Migration and setns(2)
+----------------------
 
 Processes inside a cgroup namespace can move into and out of the
 namespace root if they have proper access to external cgroups.  For
 example, from inside a namespace with cgroupns root at
 /batchjobs/container_id1, and assuming that the global hierarchy is
-still accessible inside cgroupns:
+still accessible inside cgroupns::
 
   # cat /proc/7353/cgroup
   0::/sub_cgrp_1
@@ -1418,10 +1427,11 @@ namespace.  It is expected that the someone moves the attaching
 process under the target cgroup namespace root.
 
 
-6-4. Interaction with Other Namespaces
+Interaction with Other Namespaces
+---------------------------------
 
 Namespace specific cgroup hierarchy can be mounted by a process
-running inside a non-init cgroup namespace.
+running inside a non-init cgroup namespace::
 
   # mount -t cgroup2 none $MOUNT_POINT
 
@@ -1434,27 +1444,27 @@ the view of cgroup hierarchy by namespace-private cgroupfs mount
 provides a properly isolated cgroup view inside the container.
 
 
-P. Information on Kernel Programming
+Information on Kernel Programming
+=================================
 
 This section contains kernel programming information in the areas
 where interacting with cgroup is necessary.  cgroup core and
 controllers are not covered.
 
 
-P-1. Filesystem Support for Writeback
+Filesystem Support for Writeback
+--------------------------------
 
 A filesystem can support cgroup writeback by updating
 address_space_operations->writepage[s]() to annotate bio's using the
 following two functions.
 
   wbc_init_bio(@wbc, @bio)
-
 	Should be called for each bio carrying writeback data and
 	associates the bio with the inode's owner cgroup.  Can be
 	called anytime between bio allocation and submission.
 
   wbc_account_io(@wbc, @page, @bytes)
-
 	Should be called for each data segment being written out.
 	While this function doesn't care exactly when it's called
 	during the writeback session, it's the easiest and most
@@ -1475,7 +1485,8 @@ cases by skipping wbc_init_bio() or using bio_associate_blkcg()
 directly.
 
 
-D. Deprecated v1 Core Features
+Deprecated v1 Core Features
+===========================
 
 - Multiple hierarchies including named ones are not supported.
 
@@ -1489,9 +1500,11 @@ D. Deprecated v1 Core Features
   at the root instead.
 
 
-R. Issues with v1 and Rationales for v2
+Issues with v1 and Rationales for v2
+====================================
 
-R-1. Multiple Hierarchies
+Multiple Hierarchies
+--------------------
 
 cgroup v1 allowed an arbitrary number of hierarchies and each
 hierarchy could host any number of controllers.  While this seemed to
@@ -1543,7 +1556,8 @@ how memory is distributed beyond a certain level while still wanting
 to control how CPU cycles are distributed.
 
 
-R-2. Thread Granularity
+Thread Granularity
+------------------
 
 cgroup v1 allowed threads of a process to belong to different cgroups.
 This didn't make sense for some controllers and those controllers
@@ -1586,7 +1600,8 @@ misbehaving and poorly abstracted interfaces and kernel exposing and
 locked into constructs inadvertently.
 
 
-R-3. Competition Between Inner Nodes and Threads
+Competition Between Inner Nodes and Threads
+-------------------------------------------
 
 cgroup v1 allowed threads to be in any cgroups which created an
 interesting problem where threads belonging to a parent cgroup and its
@@ -1605,7 +1620,7 @@ simply weren't available for threads.
 
 The io controller implicitly created a hidden leaf node for each
 cgroup to host the threads.  The hidden leaf had its own copies of all
-the knobs with "leaf_" prefixed.  While this allowed equivalent
+the knobs with ``leaf_`` prefixed.  While this allowed equivalent
 control over internal threads, it was with serious drawbacks.  It
 always added an extra layer of nesting which wouldn't be necessary
 otherwise, made the interface messy and significantly complicated the
@@ -1626,7 +1641,8 @@ This clearly is a problem which needs to be addressed from cgroup core
 in a uniform way.
 
 
-R-4. Other Interface Issues
+Other Interface Issues
+----------------------
 
 cgroup v1 grew without oversight and developed a large number of
 idiosyncrasies and inconsistencies.  One issue on the cgroup core side
@@ -1654,9 +1670,11 @@ cgroup v2 establishes common conventions where appropriate and updates
 controllers so that they expose minimal and consistent interfaces.
 
 
-R-5. Controller Issues and Remedies
+Controller Issues and Remedies
+------------------------------
 
-R-5-1. Memory
+Memory
+~~~~~~
 
 The original lower boundary, the soft limit, is defined as a limit
 that is per default unset.  As a result, the set of cgroups that
diff --git a/Documentation/circular-buffers.txt b/Documentation/circular-buffers.txt
index 4a824d232472..d4628174b7c5 100644
--- a/Documentation/circular-buffers.txt
+++ b/Documentation/circular-buffers.txt
@@ -1,9 +1,9 @@
-			       ================
-			       CIRCULAR BUFFERS
-			       ================
+================
+Circular Buffers
+================
 
-By: David Howells <dhowells@redhat.com>
-    Paul E. McKenney <paulmck@linux.vnet.ibm.com>
+:Author: David Howells <dhowells@redhat.com>
+:Author: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
 
 
 Linux provides a number of features that can be used to implement circular
@@ -20,7 +20,7 @@ producer and just one consumer.  It is possible to handle multiple producers by
 serialising them, and to handle multiple consumers by serialising them.
 
 
-Contents:
+.. Contents:
 
  (*) What is a circular buffer?
 
@@ -31,8 +31,8 @@ Contents:
      - The consumer.
 
 
-==========================
-WHAT IS A CIRCULAR BUFFER?
+
+What is a circular buffer?
 ==========================
 
 First of all, what is a circular buffer?  A circular buffer is a buffer of
@@ -60,9 +60,7 @@ buffer, provided that neither index overtakes the other.  The implementer must
 be careful, however, as a region more than one unit in size may wrap the end of
 the buffer and be broken into two segments.
 
-
-============================
-MEASURING POWER-OF-2 BUFFERS
+Measuring power-of-2 buffers
 ============================
 
 Calculation of the occupancy or the remaining capacity of an arbitrarily sized
@@ -71,13 +69,13 @@ modulus (divide) instruction.  However, if the buffer is of a power-of-2 size,
 then a much quicker bitwise-AND instruction can be used instead.
 
 Linux provides a set of macros for handling power-of-2 circular buffers.  These
-can be made use of by:
+can be made use of by::
 
 	#include <linux/circ_buf.h>
 
 The macros are:
 
- (*) Measure the remaining capacity of a buffer:
+ (#) Measure the remaining capacity of a buffer::
 
 	CIRC_SPACE(head_index, tail_index, buffer_size);
 
@@ -85,7 +83,7 @@ The macros are:
      can be inserted.
 
 
- (*) Measure the maximum consecutive immediate space in a buffer:
+ (#) Measure the maximum consecutive immediate space in a buffer::
 
 	CIRC_SPACE_TO_END(head_index, tail_index, buffer_size);
 
@@ -94,14 +92,14 @@ The macros are:
      beginning of the buffer.
 
 
- (*) Measure the occupancy of a buffer:
+ (#) Measure the occupancy of a buffer::
 
 	CIRC_CNT(head_index, tail_index, buffer_size);
 
      This returns the number of items currently occupying a buffer[2].
 
 
- (*) Measure the non-wrapping occupancy of a buffer:
+ (#) Measure the non-wrapping occupancy of a buffer::
 
 	CIRC_CNT_TO_END(head_index, tail_index, buffer_size);
 
@@ -112,7 +110,7 @@ The macros are:
 Each of these macros will nominally return a value between 0 and buffer_size-1,
 however:
 
- [1] CIRC_SPACE*() are intended to be used in the producer.  To the producer
+ (1) CIRC_SPACE*() are intended to be used in the producer.  To the producer
      they will return a lower bound as the producer controls the head index,
      but the consumer may still be depleting the buffer on another CPU and
      moving the tail index.
@@ -120,7 +118,7 @@ however:
      To the consumer it will show an upper bound as the producer may be busy
      depleting the space.
 
- [2] CIRC_CNT*() are intended to be used in the consumer.  To the consumer they
+ (2) CIRC_CNT*() are intended to be used in the consumer.  To the consumer they
      will return a lower bound as the consumer controls the tail index, but the
      producer may still be filling the buffer on another CPU and moving the
      head index.
@@ -128,14 +126,12 @@ however:
      To the producer it will show an upper bound as the consumer may be busy
      emptying the buffer.
 
- [3] To a third party, the order in which the writes to the indices by the
+ (3) To a third party, the order in which the writes to the indices by the
      producer and consumer become visible cannot be guaranteed as they are
      independent and may be made on different CPUs - so the result in such a
      situation will merely be a guess, and may even be negative.
 
-
-===========================================
-USING MEMORY BARRIERS WITH CIRCULAR BUFFERS
+Using memory barriers with circular buffers
 ===========================================
 
 By using memory barriers in conjunction with circular buffers, you can avoid
@@ -152,10 +148,10 @@ time, and only one thing should be emptying a buffer at any one time, but the
 two sides can operate simultaneously.
 
 
-THE PRODUCER
+The producer
 ------------
 
-The producer will look something like this:
+The producer will look something like this::
 
 	spin_lock(&producer_lock);
 
@@ -193,10 +189,10 @@ ordering between the read of the index indicating that the consumer has
 vacated a given element and the write by the producer to that same element.
 
 
-THE CONSUMER
+The Consumer
 ------------
 
-The consumer will look something like this:
+The consumer will look something like this::
 
 	spin_lock(&consumer_lock);
 
@@ -235,8 +231,7 @@ prevents the compiler from tearing the store, and enforces ordering
 against previous accesses.
 
 
-===============
-FURTHER READING
+Further reading
 ===============
 
 See also Documentation/memory-barriers.txt for a description of Linux's memory
diff --git a/Documentation/clk.txt b/Documentation/clk.txt
index 22f026aa2f34..be909ed45970 100644
--- a/Documentation/clk.txt
+++ b/Documentation/clk.txt
@@ -1,12 +1,16 @@
-		The Common Clk Framework
-		Mike Turquette <mturquette@ti.com>
+========================
+The Common Clk Framework
+========================
+
+:Author: Mike Turquette <mturquette@ti.com>
 
 This document endeavours to explain the common clk framework details,
 and how to port a platform over to this framework.  It is not yet a
 detailed explanation of the clock api in include/linux/clk.h, but
 perhaps someday it will include that information.
 
-	Part 1 - introduction and interface split
+Introduction and interface split
+================================
 
 The common clk framework is an interface to control the clock nodes
 available on various devices today.  This may come in the form of clock
@@ -35,10 +39,11 @@ is defined in struct clk_foo and pointed to within struct clk_core.  This
 allows for easy navigation between the two discrete halves of the common
 clock interface.
 
-	Part 2 - common data structures and api
+Common data structures and api
+==============================
 
 Below is the common struct clk_core definition from
-drivers/clk/clk.c, modified for brevity:
+drivers/clk/clk.c, modified for brevity::
 
 	struct clk_core {
 		const char		*name;
@@ -59,7 +64,7 @@ struct clk.  That api is documented in include/linux/clk.h.
 
 Platforms and devices utilizing the common struct clk_core use the struct
 clk_ops pointer in struct clk_core to perform the hardware-specific parts of
-the operations defined in clk-provider.h:
+the operations defined in clk-provider.h::
 
 	struct clk_ops {
 		int		(*prepare)(struct clk_hw *hw);
@@ -95,19 +100,20 @@ the operations defined in clk-provider.h:
 					      struct dentry *dentry);
 	};
 
-	Part 3 - hardware clk implementations
+Hardware clk implementations
+============================
 
 The strength of the common struct clk_core comes from its .ops and .hw pointers
 which abstract the details of struct clk from the hardware-specific bits, and
 vice versa.  To illustrate consider the simple gateable clk implementation in
-drivers/clk/clk-gate.c:
+drivers/clk/clk-gate.c::
 
-struct clk_gate {
-	struct clk_hw	hw;
-	void __iomem    *reg;
-	u8              bit_idx;
-	...
-};
+	struct clk_gate {
+		struct clk_hw	hw;
+		void __iomem    *reg;
+		u8              bit_idx;
+		...
+	};
 
 struct clk_gate contains struct clk_hw hw as well as hardware-specific
 knowledge about which register and bit controls this clk's gating.
@@ -115,7 +121,7 @@ Nothing about clock topology or accounting, such as enable_count or
 notifier_count, is needed here.  That is all handled by the common
 framework code and struct clk_core.
 
-Let's walk through enabling this clk from driver code:
+Let's walk through enabling this clk from driver code::
 
 	struct clk *clk;
 	clk = clk_get(NULL, "my_gateable_clk");
@@ -123,70 +129,71 @@ Let's walk through enabling this clk from driver code:
 	clk_prepare(clk);
 	clk_enable(clk);
 
-The call graph for clk_enable is very simple:
+The call graph for clk_enable is very simple::
 
-clk_enable(clk);
-	clk->ops->enable(clk->hw);
-	[resolves to...]
-		clk_gate_enable(hw);
-		[resolves struct clk gate with to_clk_gate(hw)]
-			clk_gate_set_bit(gate);
+	clk_enable(clk);
+		clk->ops->enable(clk->hw);
+		[resolves to...]
+			clk_gate_enable(hw);
+			[resolves struct clk gate with to_clk_gate(hw)]
+				clk_gate_set_bit(gate);
 
-And the definition of clk_gate_set_bit:
+And the definition of clk_gate_set_bit::
 
-static void clk_gate_set_bit(struct clk_gate *gate)
-{
-	u32 reg;
+	static void clk_gate_set_bit(struct clk_gate *gate)
+	{
+		u32 reg;
 
-	reg = __raw_readl(gate->reg);
-	reg |= BIT(gate->bit_idx);
-	writel(reg, gate->reg);
-}
+		reg = __raw_readl(gate->reg);
+		reg |= BIT(gate->bit_idx);
+		writel(reg, gate->reg);
+	}
 
-Note that to_clk_gate is defined as:
+Note that to_clk_gate is defined as::
 
-#define to_clk_gate(_hw) container_of(_hw, struct clk_gate, hw)
+	#define to_clk_gate(_hw) container_of(_hw, struct clk_gate, hw)
 
 This pattern of abstraction is used for every clock hardware
 representation.
 
-	Part 4 - supporting your own clk hardware
+Supporting your own clk hardware
+================================
 
 When implementing support for a new type of clock it is only necessary to
-include the following header:
+include the following header::
 
-#include <linux/clk-provider.h>
+	#include <linux/clk-provider.h>
 
 To construct a clk hardware structure for your platform you must define
-the following:
+the following::
 
-struct clk_foo {
-	struct clk_hw hw;
-	... hardware specific data goes here ...
-};
+	struct clk_foo {
+		struct clk_hw hw;
+		... hardware specific data goes here ...
+	};
 
 To take advantage of your data you'll need to support valid operations
-for your clk:
+for your clk::
 
-struct clk_ops clk_foo_ops {
-	.enable		= &clk_foo_enable;
-	.disable	= &clk_foo_disable;
-};
+	struct clk_ops clk_foo_ops {
+		.enable		= &clk_foo_enable;
+		.disable	= &clk_foo_disable;
+	};
 
-Implement the above functions using container_of:
+Implement the above functions using container_of::
 
-#define to_clk_foo(_hw) container_of(_hw, struct clk_foo, hw)
+	#define to_clk_foo(_hw) container_of(_hw, struct clk_foo, hw)
 
-int clk_foo_enable(struct clk_hw *hw)
-{
-	struct clk_foo *foo;
+	int clk_foo_enable(struct clk_hw *hw)
+	{
+		struct clk_foo *foo;
 
-	foo = to_clk_foo(hw);
+		foo = to_clk_foo(hw);
 
-	... perform magic on foo ...
+		... perform magic on foo ...
 
-	return 0;
-};
+		return 0;
+	};
 
 Below is a matrix detailing which clk_ops are mandatory based upon the
 hardware capabilities of that clock.  A cell marked as "y" means
@@ -194,41 +201,56 @@ mandatory, a cell marked as "n" implies that either including that
 callback is invalid or otherwise unnecessary.  Empty cells are either
 optional or must be evaluated on a case-by-case basis.
 
-                              clock hardware characteristics
-                -----------------------------------------------------------
-                | gate | change rate | single parent | multiplexer | root |
-                |------|-------------|---------------|-------------|------|
-.prepare        |      |             |               |             |      |
-.unprepare      |      |             |               |             |      |
-                |      |             |               |             |      |
-.enable         | y    |             |               |             |      |
-.disable        | y    |             |               |             |      |
-.is_enabled     | y    |             |               |             |      |
-                |      |             |               |             |      |
-.recalc_rate    |      | y           |               |             |      |
-.round_rate     |      | y [1]       |               |             |      |
-.determine_rate |      | y [1]       |               |             |      |
-.set_rate       |      | y           |               |             |      |
-                |      |             |               |             |      |
-.set_parent     |      |             | n             | y           | n    |
-.get_parent     |      |             | n             | y           | n    |
-                |      |             |               |             |      |
-.recalc_accuracy|      |             |               |             |      |
-                |      |             |               |             |      |
-.init           |      |             |               |             |      |
-                -----------------------------------------------------------
-[1] either one of round_rate or determine_rate is required.
+.. table:: clock hardware characteristics
+
+   +----------------+------+-------------+---------------+-------------+------+
+   |                | gate | change rate | single parent | multiplexer | root |
+   +================+======+=============+===============+=============+======+
+   |.prepare        |      |             |               |             |      |
+   +----------------+------+-------------+---------------+-------------+------+
+   |.unprepare      |      |             |               |             |      |
+   +----------------+------+-------------+---------------+-------------+------+
+   +----------------+------+-------------+---------------+-------------+------+
+   |.enable         | y    |             |               |             |      |
+   +----------------+------+-------------+---------------+-------------+------+
+   |.disable        | y    |             |               |             |      |
+   +----------------+------+-------------+---------------+-------------+------+
+   |.is_enabled     | y    |             |               |             |      |
+   +----------------+------+-------------+---------------+-------------+------+
+   +----------------+------+-------------+---------------+-------------+------+
+   |.recalc_rate    |      | y           |               |             |      |
+   +----------------+------+-------------+---------------+-------------+------+
+   |.round_rate     |      | y [1]_      |               |             |      |
+   +----------------+------+-------------+---------------+-------------+------+
+   |.determine_rate |      | y [1]_      |               |             |      |
+   +----------------+------+-------------+---------------+-------------+------+
+   |.set_rate       |      | y           |               |             |      |
+   +----------------+------+-------------+---------------+-------------+------+
+   +----------------+------+-------------+---------------+-------------+------+
+   |.set_parent     |      |             | n             | y           | n    |
+   +----------------+------+-------------+---------------+-------------+------+
+   |.get_parent     |      |             | n             | y           | n    |
+   +----------------+------+-------------+---------------+-------------+------+
+   +----------------+------+-------------+---------------+-------------+------+
+   |.recalc_accuracy|      |             |               |             |      |
+   +----------------+------+-------------+---------------+-------------+------+
+   +----------------+------+-------------+---------------+-------------+------+
+   |.init           |      |             |               |             |      |
+   +----------------+------+-------------+---------------+-------------+------+
+
+.. [1] either one of round_rate or determine_rate is required.
 
 Finally, register your clock at run-time with a hardware-specific
 registration function.  This function simply populates struct clk_foo's
 data and then passes the common struct clk parameters to the framework
-with a call to:
+with a call to::
 
-clk_register(...)
+	clk_register(...)
 
-See the basic clock types in drivers/clk/clk-*.c for examples.
+See the basic clock types in ``drivers/clk/clk-*.c`` for examples.
 
-	Part 5 - Disabling clock gating of unused clocks
+Disabling clock gating of unused clocks
+=======================================
 
 Sometimes during development it can be useful to be able to bypass the
 default disabling of unused clocks. For example, if drivers aren't enabling
@@ -239,7 +261,8 @@ are sorted out.
 To bypass this disabling, include "clk_ignore_unused" in the bootargs to the
 kernel.
 
-	Part 6 - Locking
+Locking
+=======
 
 The common clock framework uses two global locks, the prepare lock and the
 enable lock.
diff --git a/Documentation/core-api/kernel-api.rst b/Documentation/core-api/kernel-api.rst
index 9ec8488319dc..17b00914c6ab 100644
--- a/Documentation/core-api/kernel-api.rst
+++ b/Documentation/core-api/kernel-api.rst
@@ -114,7 +114,7 @@ The Slab Cache
 User Space Memory Access
 ------------------------
 
-.. kernel-doc:: arch/x86/include/asm/uaccess_32.h
+.. kernel-doc:: arch/x86/include/asm/uaccess.h
    :internal:
 
 .. kernel-doc:: arch/x86/lib/usercopy_32.c
diff --git a/Documentation/cpu-load.txt b/Documentation/cpu-load.txt
index 287224e57cfc..2d01ce43d2a2 100644
--- a/Documentation/cpu-load.txt
+++ b/Documentation/cpu-load.txt
@@ -1,9 +1,10 @@
+========
 CPU load
---------
+========
 
-Linux exports various bits of information via `/proc/stat' and
-`/proc/uptime' that userland tools, such as top(1), use to calculate
-the average time system spent in a particular state, for example:
+Linux exports various bits of information via ``/proc/stat`` and
+``/proc/uptime`` that userland tools, such as top(1), use to calculate
+the average time system spent in a particular state, for example::
 
     $ iostat
     Linux 2.6.18.3-exp (linmac)     02/20/2007
@@ -17,7 +18,7 @@ Here the system thinks that over the default sampling period the
 system spent 10.01% of the time doing work in user space, 2.92% in the
 kernel, and was overall 81.63% of the time idle.
 
-In most cases the `/proc/stat' information reflects the reality quite
+In most cases the ``/proc/stat``	 information reflects the reality quite
 closely, however due to the nature of how/when the kernel collects
 this data sometimes it can not be trusted at all.
 
@@ -33,78 +34,78 @@ Example
 -------
 
 If we imagine the system with one task that periodically burns cycles
-in the following manner:
+in the following manner::
 
- time line between two timer interrupts
-|--------------------------------------|
- ^                                    ^
- |_ something begins working          |
-                                      |_ something goes to sleep
-                                     (only to be awaken quite soon)
+     time line between two timer interrupts
+    |--------------------------------------|
+     ^                                    ^
+     |_ something begins working          |
+                                          |_ something goes to sleep
+                                         (only to be awaken quite soon)
 
 In the above situation the system will be 0% loaded according to the
-`/proc/stat' (since the timer interrupt will always happen when the
+``/proc/stat`` (since the timer interrupt will always happen when the
 system is executing the idle handler), but in reality the load is
 closer to 99%.
 
 One can imagine many more situations where this behavior of the kernel
-will lead to quite erratic information inside `/proc/stat'.
-
-
-/* gcc -o hog smallhog.c */
-#include <time.h>
-#include <limits.h>
-#include <signal.h>
-#include <sys/time.h>
-#define HIST 10
-
-static volatile sig_atomic_t stop;
-
-static void sighandler (int signr)
-{
-     (void) signr;
-     stop = 1;
-}
-static unsigned long hog (unsigned long niters)
-{
-     stop = 0;
-     while (!stop && --niters);
-     return niters;
-}
-int main (void)
-{
-     int i;
-     struct itimerval it = { .it_interval = { .tv_sec = 0, .tv_usec = 1 },
-                             .it_value = { .tv_sec = 0, .tv_usec = 1 } };
-     sigset_t set;
-     unsigned long v[HIST];
-     double tmp = 0.0;
-     unsigned long n;
-     signal (SIGALRM, &sighandler);
-     setitimer (ITIMER_REAL, &it, NULL);
-
-     hog (ULONG_MAX);
-     for (i = 0; i < HIST; ++i) v[i] = ULONG_MAX - hog (ULONG_MAX);
-     for (i = 0; i < HIST; ++i) tmp += v[i];
-     tmp /= HIST;
-     n = tmp - (tmp / 3.0);
-
-     sigemptyset (&set);
-     sigaddset (&set, SIGALRM);
-
-     for (;;) {
-         hog (n);
-         sigwait (&set, &i);
-     }
-     return 0;
-}
+will lead to quite erratic information inside ``/proc/stat``::
+
+
+	/* gcc -o hog smallhog.c */
+	#include <time.h>
+	#include <limits.h>
+	#include <signal.h>
+	#include <sys/time.h>
+	#define HIST 10
+
+	static volatile sig_atomic_t stop;
+
+	static void sighandler (int signr)
+	{
+	(void) signr;
+	stop = 1;
+	}
+	static unsigned long hog (unsigned long niters)
+	{
+	stop = 0;
+	while (!stop && --niters);
+	return niters;
+	}
+	int main (void)
+	{
+	int i;
+	struct itimerval it = { .it_interval = { .tv_sec = 0, .tv_usec = 1 },
+				.it_value = { .tv_sec = 0, .tv_usec = 1 } };
+	sigset_t set;
+	unsigned long v[HIST];
+	double tmp = 0.0;
+	unsigned long n;
+	signal (SIGALRM, &sighandler);
+	setitimer (ITIMER_REAL, &it, NULL);
+
+	hog (ULONG_MAX);
+	for (i = 0; i < HIST; ++i) v[i] = ULONG_MAX - hog (ULONG_MAX);
+	for (i = 0; i < HIST; ++i) tmp += v[i];
+	tmp /= HIST;
+	n = tmp - (tmp / 3.0);
+
+	sigemptyset (&set);
+	sigaddset (&set, SIGALRM);
+
+	for (;;) {
+		hog (n);
+		sigwait (&set, &i);
+	}
+	return 0;
+	}
 
 
 References
 ----------
 
-http://lkml.org/lkml/2007/2/12/6
-Documentation/filesystems/proc.txt (1.8)
+- http://lkml.org/lkml/2007/2/12/6
+- Documentation/filesystems/proc.txt (1.8)
 
 
 Thanks
diff --git a/Documentation/cputopology.txt b/Documentation/cputopology.txt
index 127c9d8c2174..c6e7e9196a8b 100644
--- a/Documentation/cputopology.txt
+++ b/Documentation/cputopology.txt
@@ -1,3 +1,6 @@
+===========================================
+How CPU topology info is exported via sysfs
+===========================================
 
 Export CPU topology info via sysfs. Items (attributes) are similar
 to /proc/cpuinfo output of some architectures:
@@ -75,24 +78,26 @@ CONFIG_SCHED_BOOK and CONFIG_DRAWER are currently only used on s390, where
 they reflect the cpu and cache hierarchy.
 
 For an architecture to support this feature, it must define some of
-these macros in include/asm-XXX/topology.h:
-#define topology_physical_package_id(cpu)
-#define topology_core_id(cpu)
-#define topology_book_id(cpu)
-#define topology_drawer_id(cpu)
-#define topology_sibling_cpumask(cpu)
-#define topology_core_cpumask(cpu)
-#define topology_book_cpumask(cpu)
-#define topology_drawer_cpumask(cpu)
-
-The type of **_id macros is int.
-The type of **_cpumask macros is (const) struct cpumask *. The latter
-correspond with appropriate **_siblings sysfs attributes (except for
+these macros in include/asm-XXX/topology.h::
+
+	#define topology_physical_package_id(cpu)
+	#define topology_core_id(cpu)
+	#define topology_book_id(cpu)
+	#define topology_drawer_id(cpu)
+	#define topology_sibling_cpumask(cpu)
+	#define topology_core_cpumask(cpu)
+	#define topology_book_cpumask(cpu)
+	#define topology_drawer_cpumask(cpu)
+
+The type of ``**_id macros`` is int.
+The type of ``**_cpumask macros`` is ``(const) struct cpumask *``. The latter
+correspond with appropriate ``**_siblings`` sysfs attributes (except for
 topology_sibling_cpumask() which corresponds with thread_siblings).
 
 To be consistent on all architectures, include/linux/topology.h
 provides default definitions for any of the above macros that are
 not defined by include/asm-XXX/topology.h:
+
 1) physical_package_id: -1
 2) core_id: 0
 3) sibling_cpumask: just the given CPU
@@ -107,6 +112,7 @@ Additionally, CPU topology information is provided under
 /sys/devices/system/cpu and includes these files.  The internal
 source for the output is in brackets ("[]").
 
+    =========== ==========================================================
     kernel_max: the maximum CPU index allowed by the kernel configuration.
 		[NR_CPUS-1]
 
@@ -122,6 +128,7 @@ source for the output is in brackets ("[]").
 
     present:	CPUs that have been identified as being present in the
 		system. [cpu_present_mask]
+    =========== ==========================================================
 
 The format for the above output is compatible with cpulist_parse()
 [see <linux/cpumask.h>].  Some examples follow.
@@ -129,7 +136,7 @@ The format for the above output is compatible with cpulist_parse()
 In this example, there are 64 CPUs in the system but cpus 32-63 exceed
 the kernel max which is limited to 0..31 by the NR_CPUS config option
 being 32.  Note also that CPUs 2 and 4-31 are not online but could be
-brought online as they are both present and possible.
+brought online as they are both present and possible::
 
      kernel_max: 31
         offline: 2,4-31,32-63
@@ -140,7 +147,7 @@ brought online as they are both present and possible.
 In this example, the NR_CPUS config option is 128, but the kernel was
 started with possible_cpus=144.  There are 4 CPUs in the system and cpu2
 was manually taken offline (and is the only CPU that can be brought
-online.)
+online.)::
 
      kernel_max: 127
         offline: 2,4-127,128-143
diff --git a/Documentation/crc32.txt b/Documentation/crc32.txt
index a08a7dd9d625..8a6860f33b4e 100644
--- a/Documentation/crc32.txt
+++ b/Documentation/crc32.txt
@@ -1,4 +1,6 @@
-A brief CRC tutorial.
+=================================
+brief tutorial on CRC computation
+=================================
 
 A CRC is a long-division remainder.  You add the CRC to the message,
 and the whole thing (message+CRC) is a multiple of the given
@@ -8,7 +10,8 @@ remainder computed on the message+CRC is 0.  This latter approach
 is used by a lot of hardware implementations, and is why so many
 protocols put the end-of-frame flag after the CRC.
 
-It's actually the same long division you learned in school, except that
+It's actually the same long division you learned in school, except that:
+
 - We're working in binary, so the digits are only 0 and 1, and
 - When dividing polynomials, there are no carries.  Rather than add and
   subtract, we just xor.  Thus, we tend to get a bit sloppy about
@@ -40,11 +43,12 @@ throw the quotient bit away, but subtract the appropriate multiple of
 the polynomial from the remainder and we're back to where we started,
 ready to process the next bit.
 
-A big-endian CRC written this way would be coded like:
-for (i = 0; i < input_bits; i++) {
-	multiple = remainder & 0x80000000 ? CRCPOLY : 0;
-	remainder = (remainder << 1 | next_input_bit()) ^ multiple;
-}
+A big-endian CRC written this way would be coded like::
+
+	for (i = 0; i < input_bits; i++) {
+		multiple = remainder & 0x80000000 ? CRCPOLY : 0;
+		remainder = (remainder << 1 | next_input_bit()) ^ multiple;
+	}
 
 Notice how, to get at bit 32 of the shifted remainder, we look
 at bit 31 of the remainder *before* shifting it.
@@ -54,25 +58,26 @@ the remainder don't actually affect any decision-making until
 32 bits later.  Thus, the first 32 cycles of this are pretty boring.
 Also, to add the CRC to a message, we need a 32-bit-long hole for it at
 the end, so we have to add 32 extra cycles shifting in zeros at the
-end of every message,
+end of every message.
 
 These details lead to a standard trick: rearrange merging in the
 next_input_bit() until the moment it's needed.  Then the first 32 cycles
 can be precomputed, and merging in the final 32 zero bits to make room
-for the CRC can be skipped entirely.  This changes the code to:
+for the CRC can be skipped entirely.  This changes the code to::
 
-for (i = 0; i < input_bits; i++) {
-	remainder ^= next_input_bit() << 31;
-	multiple = (remainder & 0x80000000) ? CRCPOLY : 0;
-	remainder = (remainder << 1) ^ multiple;
-}
+	for (i = 0; i < input_bits; i++) {
+		remainder ^= next_input_bit() << 31;
+		multiple = (remainder & 0x80000000) ? CRCPOLY : 0;
+		remainder = (remainder << 1) ^ multiple;
+	}
 
-With this optimization, the little-endian code is particularly simple:
-for (i = 0; i < input_bits; i++) {
-	remainder ^= next_input_bit();
-	multiple = (remainder & 1) ? CRCPOLY : 0;
-	remainder = (remainder >> 1) ^ multiple;
-}
+With this optimization, the little-endian code is particularly simple::
+
+	for (i = 0; i < input_bits; i++) {
+		remainder ^= next_input_bit();
+		multiple = (remainder & 1) ? CRCPOLY : 0;
+		remainder = (remainder >> 1) ^ multiple;
+	}
 
 The most significant coefficient of the remainder polynomial is stored
 in the least significant bit of the binary "remainder" variable.
@@ -81,23 +86,25 @@ be bit-reversed) and next_input_bit().
 
 As long as next_input_bit is returning the bits in a sensible order, we don't
 *have* to wait until the last possible moment to merge in additional bits.
-We can do it 8 bits at a time rather than 1 bit at a time:
-for (i = 0; i < input_bytes; i++) {
-	remainder ^= next_input_byte() << 24;
-	for (j = 0; j < 8; j++) {
-		multiple = (remainder & 0x80000000) ? CRCPOLY : 0;
-		remainder = (remainder << 1) ^ multiple;
+We can do it 8 bits at a time rather than 1 bit at a time::
+
+	for (i = 0; i < input_bytes; i++) {
+		remainder ^= next_input_byte() << 24;
+		for (j = 0; j < 8; j++) {
+			multiple = (remainder & 0x80000000) ? CRCPOLY : 0;
+			remainder = (remainder << 1) ^ multiple;
+		}
 	}
-}
 
-Or in little-endian:
-for (i = 0; i < input_bytes; i++) {
-	remainder ^= next_input_byte();
-	for (j = 0; j < 8; j++) {
-		multiple = (remainder & 1) ? CRCPOLY : 0;
-		remainder = (remainder >> 1) ^ multiple;
+Or in little-endian::
+
+	for (i = 0; i < input_bytes; i++) {
+		remainder ^= next_input_byte();
+		for (j = 0; j < 8; j++) {
+			multiple = (remainder & 1) ? CRCPOLY : 0;
+			remainder = (remainder >> 1) ^ multiple;
+		}
 	}
-}
 
 If the input is a multiple of 32 bits, you can even XOR in a 32-bit
 word at a time and increase the inner loop count to 32.
diff --git a/Documentation/crypto/asymmetric-keys.txt b/Documentation/crypto/asymmetric-keys.txt
index b82b6ad48488..5969bf42562a 100644
--- a/Documentation/crypto/asymmetric-keys.txt
+++ b/Documentation/crypto/asymmetric-keys.txt
@@ -10,6 +10,7 @@ Contents:
     - Signature verification.
   - Asymmetric key subtypes.
   - Instantiation data parsers.
+  - Keyring link restrictions.
 
 
 ========
@@ -318,7 +319,8 @@ KEYRING LINK RESTRICTIONS
 =========================
 
 Keyrings created from userspace using add_key can be configured to check the
-signature of the key being linked.
+signature of the key being linked.  Keys without a valid signature are not
+allowed to link.
 
 Several restriction methods are available:
 
@@ -327,9 +329,10 @@ Several restriction methods are available:
      - Option string used with KEYCTL_RESTRICT_KEYRING:
        - "builtin_trusted"
 
-     The kernel builtin trusted keyring will be searched for the signing
-     key. The ca_keys kernel parameter also affects which keys are used for
-     signature verification.
+     The kernel builtin trusted keyring will be searched for the signing key.
+     If the builtin trusted keyring is not configured, all links will be
+     rejected.  The ca_keys kernel parameter also affects which keys are used
+     for signature verification.
 
  (2) Restrict using the kernel builtin and secondary trusted keyrings
 
@@ -337,8 +340,10 @@ Several restriction methods are available:
        - "builtin_and_secondary_trusted"
 
      The kernel builtin and secondary trusted keyrings will be searched for the
-     signing key. The ca_keys kernel parameter also affects which keys are used
-     for signature verification.
+     signing key.  If the secondary trusted keyring is not configured, this
+     restriction will behave like the "builtin_trusted" option.  The ca_keys
+     kernel parameter also affects which keys are used for signature
+     verification.
 
  (3) Restrict using a separate key or keyring
 
@@ -346,7 +351,7 @@ Several restriction methods are available:
        - "key_or_keyring:<key or keyring serial number>[:chain]"
 
      Whenever a key link is requested, the link will only succeed if the key
-     being linked is signed by one of the designated keys. This key may be
+     being linked is signed by one of the designated keys.  This key may be
      specified directly by providing a serial number for one asymmetric key, or
      a group of keys may be searched for the signing key by providing the
      serial number for a keyring.
@@ -354,7 +359,51 @@ Several restriction methods are available:
      When the "chain" option is provided at the end of the string, the keys
      within the destination keyring will also be searched for signing keys.
      This allows for verification of certificate chains by adding each
-     cert in order (starting closest to the root) to one keyring.
+     certificate in order (starting closest to the root) to a keyring.  For
+     instance, one keyring can be populated with links to a set of root
+     certificates, with a separate, restricted keyring set up for each
+     certificate chain to be validated:
+
+	# Create and populate a keyring for root certificates
+	root_id=`keyctl add keyring root-certs "" @s`
+	keyctl padd asymmetric "" $root_id < root1.cert
+	keyctl padd asymmetric "" $root_id < root2.cert
+
+	# Create and restrict a keyring for the certificate chain
+	chain_id=`keyctl add keyring chain "" @s`
+	keyctl restrict_keyring $chain_id asymmetric key_or_keyring:$root_id:chain
+
+	# Attempt to add each certificate in the chain, starting with the
+	# certificate closest to the root.
+	keyctl padd asymmetric "" $chain_id < intermediateA.cert
+	keyctl padd asymmetric "" $chain_id < intermediateB.cert
+	keyctl padd asymmetric "" $chain_id < end-entity.cert
+
+     If the final end-entity certificate is successfully added to the "chain"
+     keyring, we can be certain that it has a valid signing chain going back to
+     one of the root certificates.
+
+     A single keyring can be used to verify a chain of signatures by
+     restricting the keyring after linking the root certificate:
+
+	# Create a keyring for the certificate chain and add the root
+	chain2_id=`keyctl add keyring chain2 "" @s`
+	keyctl padd asymmetric "" $chain2_id < root1.cert
+
+	# Restrict the keyring that already has root1.cert linked.  The cert
+	# will remain linked by the keyring.
+	keyctl restrict_keyring $chain2_id asymmetric key_or_keyring:0:chain
+
+	# Attempt to add each certificate in the chain, starting with the
+	# certificate closest to the root.
+	keyctl padd asymmetric "" $chain2_id < intermediateA.cert
+	keyctl padd asymmetric "" $chain2_id < intermediateB.cert
+	keyctl padd asymmetric "" $chain2_id < end-entity.cert
+
+     If the final end-entity certificate is successfully added to the "chain2"
+     keyring, we can be certain that there is a valid signing chain going back
+     to the root certificate that was added before the keyring was restricted.
+
 
 In all of these cases, if the signing key is found the signature of the key to
 be linked will be verified using the signing key.  The requested key is added
diff --git a/Documentation/dcdbas.txt b/Documentation/dcdbas.txt
index e1c52e2dc361..309cc57a7c1c 100644
--- a/Documentation/dcdbas.txt
+++ b/Documentation/dcdbas.txt
@@ -1,4 +1,9 @@
+===================================
+Dell Systems Management Base Driver
+===================================
+
 Overview
+========
 
 The Dell Systems Management Base Driver provides a sysfs interface for
 systems management software such as Dell OpenManage to perform system
@@ -17,6 +22,7 @@ more information about the libsmbios project.
 
 
 System Management Interrupt
+===========================
 
 On some Dell systems, systems management software must access certain
 management information via a system management interrupt (SMI).  The SMI data
@@ -24,12 +30,12 @@ buffer must reside in 32-bit address space, and the physical address of the
 buffer is required for the SMI.  The driver maintains the memory required for
 the SMI and provides a way for the application to generate the SMI.
 The driver creates the following sysfs entries for systems management
-software to perform these system management interrupts:
+software to perform these system management interrupts::
 
-/sys/devices/platform/dcdbas/smi_data
-/sys/devices/platform/dcdbas/smi_data_buf_phys_addr
-/sys/devices/platform/dcdbas/smi_data_buf_size
-/sys/devices/platform/dcdbas/smi_request
+	/sys/devices/platform/dcdbas/smi_data
+	/sys/devices/platform/dcdbas/smi_data_buf_phys_addr
+	/sys/devices/platform/dcdbas/smi_data_buf_size
+	/sys/devices/platform/dcdbas/smi_request
 
 Systems management software must perform the following steps to execute
 a SMI using this driver:
@@ -43,6 +49,7 @@ a SMI using this driver:
 
 
 Host Control Action
+===================
 
 Dell OpenManage supports a host control feature that allows the administrator
 to perform a power cycle or power off of the system after the OS has finished
@@ -69,12 +76,14 @@ power off host control action using this driver:
 
 
 Host Control SMI Type
+=====================
 
 The following table shows the value to write to host_control_smi_type to
 perform a power cycle or power off host control action:
 
+=================== =====================
 PowerEdge System    Host Control SMI Type
-----------------    ---------------------
+=================== =====================
       300             HC_SMITYPE_TYPE1
      1300             HC_SMITYPE_TYPE1
      1400             HC_SMITYPE_TYPE2
@@ -87,5 +96,4 @@ PowerEdge System    Host Control SMI Type
      1655MC           HC_SMITYPE_TYPE2
       700             HC_SMITYPE_TYPE3
       750             HC_SMITYPE_TYPE3
-
-
+=================== =====================
diff --git a/Documentation/debugging-via-ohci1394.txt b/Documentation/debugging-via-ohci1394.txt
index 9ff026d22b75..981ad4f89fd3 100644
--- a/Documentation/debugging-via-ohci1394.txt
+++ b/Documentation/debugging-via-ohci1394.txt
@@ -1,6 +1,6 @@
-
-  Using physical DMA provided by OHCI-1394 FireWire controllers for debugging
-  ---------------------------------------------------------------------------
+===========================================================================
+Using physical DMA provided by OHCI-1394 FireWire controllers for debugging
+===========================================================================
 
 Introduction
 ------------
@@ -91,10 +91,10 @@ Step-by-step instructions for using firescope with early OHCI initialization:
 1) Verify that your hardware is supported:
 
    Load the firewire-ohci module and check your kernel logs.
-   You should see a line similar to
+   You should see a line similar to::
 
-   firewire_ohci 0000:15:00.1: added OHCI v1.0 device as card 2, 4 IR + 4 IT
-   ... contexts, quirks 0x11
+     firewire_ohci 0000:15:00.1: added OHCI v1.0 device as card 2, 4 IR + 4 IT
+     ... contexts, quirks 0x11
 
    when loading the driver. If you have no supported controller, many PCI,
    CardBus and even some Express cards which are fully compliant to OHCI-1394
@@ -113,9 +113,9 @@ Step-by-step instructions for using firescope with early OHCI initialization:
    stable connection and has matching connectors (there are small 4-pin and
    large 6-pin FireWire ports) will do.
 
-   If an driver is running on both machines you should see a line like
+   If an driver is running on both machines you should see a line like::
 
-   firewire_core 0000:15:00.1: created device fw1: GUID 00061b0020105917, S400
+     firewire_core 0000:15:00.1: created device fw1: GUID 00061b0020105917, S400
 
    on both machines in the kernel log when the cable is plugged in
    and connects the two machines.
@@ -123,7 +123,7 @@ Step-by-step instructions for using firescope with early OHCI initialization:
 3) Test physical DMA using firescope:
 
    On the debug host, make sure that /dev/fw* is accessible,
-   then start firescope:
+   then start firescope::
 
 	$ firescope
 	Port 0 (/dev/fw1) opened, 2 nodes detected
@@ -163,7 +163,7 @@ Step-by-step instructions for using firescope with early OHCI initialization:
    host loaded, reboot the debugged machine, booting the kernel which has
    CONFIG_PROVIDE_OHCI1394_DMA_INIT enabled, with the option ohci1394_dma=early.
 
-   Then, on the debugging host, run firescope, for example by using -A:
+   Then, on the debugging host, run firescope, for example by using -A::
 
 	firescope -A System.map-of-debug-target-kernel
 
@@ -178,6 +178,7 @@ Step-by-step instructions for using firescope with early OHCI initialization:
 
 Notes
 -----
+
 Documentation and specifications: http://halobates.de/firewire/
 
 FireWire is a trademark of Apple Inc. - for more information please refer to:
diff --git a/Documentation/dell_rbu.txt b/Documentation/dell_rbu.txt
index d262e22bddec..0fdb6aa2704c 100644
--- a/Documentation/dell_rbu.txt
+++ b/Documentation/dell_rbu.txt
@@ -1,18 +1,30 @@
-Purpose:
-Demonstrate the usage of the new open sourced rbu (Remote BIOS Update) driver
+=============================================================
+Usage of the new open sourced rbu (Remote BIOS Update) driver
+=============================================================
+
+Purpose
+=======
+
+Document demonstrating the use of the Dell Remote BIOS Update driver.
 for updating BIOS images on Dell servers and desktops.
 
-Scope:
+Scope
+=====
+
 This document discusses the functionality of the rbu driver only.
 It does not cover the support needed from applications to enable the BIOS to
 update itself with the image downloaded in to the memory.
 
-Overview:
+Overview
+========
+
 This driver works with Dell OpenManage or Dell Update Packages for updating
 the BIOS on Dell servers (starting from servers sold since 1999), desktops
 and notebooks (starting from those sold in 2005).
+
 Please go to  http://support.dell.com register and you can find info on
 OpenManage and Dell Update packages (DUP).
+
 Libsmbios can also be used to update BIOS on Dell systems go to
 http://linux.dell.com/libsmbios/ for details.
 
@@ -22,6 +34,7 @@ of physical pages having the BIOS image. In case of packetized the app
 using the driver breaks the image in to packets of fixed sizes and the driver
 would place each packet in contiguous physical memory. The driver also
 maintains a link list of packets for reading them back.
+
 If the dell_rbu driver is unloaded all the allocated memory is freed.
 
 The rbu driver needs to have an application (as mentioned above)which will
@@ -30,28 +43,33 @@ inform the BIOS to enable the update in the next system reboot.
 The user should not unload the rbu driver after downloading the BIOS image
 or updating.
 
-The driver load creates the following directories under the /sys file system.
-/sys/class/firmware/dell_rbu/loading
-/sys/class/firmware/dell_rbu/data
-/sys/devices/platform/dell_rbu/image_type
-/sys/devices/platform/dell_rbu/data
-/sys/devices/platform/dell_rbu/packet_size
+The driver load creates the following directories under the /sys file system::
+
+	/sys/class/firmware/dell_rbu/loading
+	/sys/class/firmware/dell_rbu/data
+	/sys/devices/platform/dell_rbu/image_type
+	/sys/devices/platform/dell_rbu/data
+	/sys/devices/platform/dell_rbu/packet_size
 
 The driver supports two types of update mechanism; monolithic and packetized.
 These update mechanism depends upon the BIOS currently running on the system.
 Most of the Dell systems support a monolithic update where the BIOS image is
 copied to a single contiguous block of physical memory.
+
 In case of packet mechanism the single memory can be broken in smaller chunks
 of contiguous memory and the BIOS image is scattered in these packets.
 
 By default the driver uses monolithic memory for the update type. This can be
 changed to packets during the driver load time by specifying the load
-parameter image_type=packet.  This can also be changed later as below
-echo packet > /sys/devices/platform/dell_rbu/image_type
+parameter image_type=packet.  This can also be changed later as below::
+
+	echo packet > /sys/devices/platform/dell_rbu/image_type
 
 In packet update mode the packet size has to be given before any packets can
-be downloaded. It is done as below
-echo XXXX > /sys/devices/platform/dell_rbu/packet_size
+be downloaded. It is done as below::
+
+	echo XXXX > /sys/devices/platform/dell_rbu/packet_size
+
 In the packet update mechanism, the user needs to create a new file having
 packets of data arranged back to back. It can be done as follows
 The user creates packets header, gets the chunk of the BIOS image and
@@ -60,41 +78,54 @@ added together should match the specified packet_size. This makes one
 packet, the user needs to create more such packets out of the entire BIOS
 image file and then arrange all these packets back to back in to one single
 file.
+
 This file is then copied to /sys/class/firmware/dell_rbu/data.
 Once this file gets to the driver, the driver extracts packet_size data from
 the file and spreads it across the physical memory in contiguous packet_sized
 space.
+
 This method makes sure that all the packets get to the driver in a single operation.
 
 In monolithic update the user simply get the BIOS image (.hdr file) and copies
 to the data file as is without any change to the BIOS image itself.
 
 Do the steps below to download the BIOS image.
+
 1) echo 1 > /sys/class/firmware/dell_rbu/loading
 2) cp bios_image.hdr /sys/class/firmware/dell_rbu/data
 3) echo 0 > /sys/class/firmware/dell_rbu/loading
 
 The /sys/class/firmware/dell_rbu/ entries will remain till the following is
 done.
-echo -1 > /sys/class/firmware/dell_rbu/loading
+
+::
+
+	echo -1 > /sys/class/firmware/dell_rbu/loading
+
 Until this step is completed the driver cannot be unloaded.
+
 Also echoing either mono, packet or init in to image_type will free up the
 memory allocated by the driver.
 
 If a user by accident executes steps 1 and 3 above without executing step 2;
 it will make the /sys/class/firmware/dell_rbu/ entries disappear.
-The entries can be recreated by doing the following
-echo init > /sys/devices/platform/dell_rbu/image_type
-NOTE: echoing init in image_type does not change it original value.
+
+The entries can be recreated by doing the following::
+
+	echo init > /sys/devices/platform/dell_rbu/image_type
+
+.. note:: echoing init in image_type does not change it original value.
 
 Also the driver provides /sys/devices/platform/dell_rbu/data readonly file to
 read back the image downloaded.
 
-NOTE:
-This driver requires a patch for firmware_class.c which has the modified
-request_firmware_nowait function.
-Also after updating the BIOS image a user mode application needs to execute
-code which sends the BIOS update request to the BIOS. So on the next reboot
-the BIOS knows about the new image downloaded and it updates itself.
-Also don't unload the rbu driver if the image has to be updated.
+.. note::
+
+   This driver requires a patch for firmware_class.c which has the modified
+   request_firmware_nowait function.
+
+   Also after updating the BIOS image a user mode application needs to execute
+   code which sends the BIOS update request to the BIOS. So on the next reboot
+   the BIOS knows about the new image downloaded and it updates itself.
+   Also don't unload the rbu driver if the image has to be updated.
 
diff --git a/Documentation/device-mapper/dm-raid.txt b/Documentation/device-mapper/dm-raid.txt
index 7e06e65586d4..4a0a7469fdd7 100644
--- a/Documentation/device-mapper/dm-raid.txt
+++ b/Documentation/device-mapper/dm-raid.txt
@@ -343,3 +343,4 @@ Version History
 1.11.0  Fix table line argument order
 	(wrong raid10_copies/raid10_format sequence)
 1.11.1  Add raid4/5/6 journal write-back support via journal_mode option
+1.12.1  fix for MD deadlock between mddev_suspend() and md_write_start() available
diff --git a/Documentation/devicetree/bindings/ata/sata_rcar.txt b/Documentation/devicetree/bindings/ata/sata_rcar.txt
index 0764f9ab63dc..e20eac7a3087 100644
--- a/Documentation/devicetree/bindings/ata/sata_rcar.txt
+++ b/Documentation/devicetree/bindings/ata/sata_rcar.txt
@@ -1,14 +1,22 @@
 * Renesas R-Car SATA
 
 Required properties:
-- compatible		: should contain one of the following:
+- compatible		: should contain one or more of the following:
 			  - "renesas,sata-r8a7779" for R-Car H1
-			    ("renesas,rcar-sata" is deprecated)
 			  - "renesas,sata-r8a7790-es1" for R-Car H2 ES1
 			  - "renesas,sata-r8a7790" for R-Car H2 other than ES1
 			  - "renesas,sata-r8a7791" for R-Car M2-W
 			  - "renesas,sata-r8a7793" for R-Car M2-N
 			  - "renesas,sata-r8a7795" for R-Car H3
+			  - "renesas,rcar-gen2-sata" for a generic R-Car Gen2 compatible device
+			  - "renesas,rcar-gen3-sata" for a generic R-Car Gen3 compatible device
+			  - "renesas,rcar-sata" is deprecated
+
+			  When compatible with the generic version nodes
+			  must list the SoC-specific version corresponding
+			  to the platform first followed by the generic
+			  version.
+
 - reg			: address and length of the SATA registers;
 - interrupts		: must consist of one interrupt specifier.
 - clocks		: must contain a reference to the functional clock.
@@ -16,7 +24,7 @@ Required properties:
 Example:
 
 sata0: sata@ee300000 {
-	compatible = "renesas,sata-r8a7791";
+	compatible = "renesas,sata-r8a7791", "renesas,rcar-gen2-sata";
 	reg = <0 0xee300000 0 0x2000>;
 	interrupt-parent = <&gic>;
 	interrupts = <0 105 IRQ_TYPE_LEVEL_HIGH>;
diff --git a/Documentation/devicetree/bindings/clock/img,boston-clock.txt b/Documentation/devicetree/bindings/clock/img,boston-clock.txt
new file mode 100644
index 000000000000..7bc5e9ffb624
--- /dev/null
+++ b/Documentation/devicetree/bindings/clock/img,boston-clock.txt
@@ -0,0 +1,31 @@
+Binding for Imagination Technologies MIPS Boston clock sources.
+
+This binding uses the common clock binding[1].
+
+[1] Documentation/devicetree/bindings/clock/clock-bindings.txt
+
+The device node must be a child node of the syscon node corresponding to the
+Boston system's platform registers.
+
+Required properties:
+- compatible : Should be "img,boston-clock".
+- #clock-cells : Should be set to 1.
+  Values available for clock consumers can be found in the header file:
+    <dt-bindings/clock/boston-clock.h>
+
+Example:
+
+	system-controller@17ffd000 {
+		compatible = "img,boston-platform-regs", "syscon";
+		reg = <0x17ffd000 0x1000>;
+
+		clk_boston: clock {
+			compatible = "img,boston-clock";
+			#clock-cells = <1>;
+		};
+	};
+
+	uart0: uart@17ffe000 {
+		/* ... */
+		clocks = <&clk_boston BOSTON_CLK_SYS>;
+	};
diff --git a/Documentation/devicetree/bindings/crypto/inside-secure-safexcel.txt b/Documentation/devicetree/bindings/crypto/inside-secure-safexcel.txt
index f69773f4252b..941bb6a6fb13 100644
--- a/Documentation/devicetree/bindings/crypto/inside-secure-safexcel.txt
+++ b/Documentation/devicetree/bindings/crypto/inside-secure-safexcel.txt
@@ -8,7 +8,6 @@ Required properties:
 
 Optional properties:
 - clocks: Reference to the crypto engine clock.
-- dma-mask: The address mask limitation. Defaults to 64.
 
 Example:
 
@@ -24,6 +23,5 @@ Example:
 		interrupt-names = "mem", "ring0", "ring1", "ring2", "ring3",
 				  "eip";
 		clocks = <&cpm_syscon0 1 26>;
-		dma-mask = <0xff 0xffffffff>;
 		status = "disabled";
 	};
diff --git a/Documentation/devicetree/bindings/gpio/gpio-exar.txt b/Documentation/devicetree/bindings/gpio/gpio-exar.txt
new file mode 100644
index 000000000000..4540d61824af
--- /dev/null
+++ b/Documentation/devicetree/bindings/gpio/gpio-exar.txt
@@ -0,0 +1,5 @@
+Exportable MPIO interface of Exar UART chips
+
+Required properties of the device:
+ - exar,first-pin: first exportable pins (0..15)
+ - ngpios: number of exportable pins (1..16)
diff --git a/Documentation/devicetree/bindings/gpu/arm,mali-midgard.txt b/Documentation/devicetree/bindings/gpu/arm,mali-midgard.txt
index d3b6e1a4713a..5aa5926029ee 100644
--- a/Documentation/devicetree/bindings/gpu/arm,mali-midgard.txt
+++ b/Documentation/devicetree/bindings/gpu/arm,mali-midgard.txt
@@ -40,7 +40,7 @@ Optional properties:
 Example for a Mali-T760:
 
 gpu@ffa30000 {
-	compatible = "rockchip,rk3288-mali", "arm,mali-t760", "arm,mali-midgard";
+	compatible = "rockchip,rk3288-mali", "arm,mali-t760";
 	reg = <0xffa30000 0x10000>;
 	interrupts = <GIC_SPI 6 IRQ_TYPE_LEVEL_HIGH>,
 		     <GIC_SPI 7 IRQ_TYPE_LEVEL_HIGH>,
diff --git a/Documentation/devicetree/bindings/i2c/i2c-aspeed.txt b/Documentation/devicetree/bindings/i2c/i2c-aspeed.txt
new file mode 100644
index 000000000000..bd6480b19535
--- /dev/null
+++ b/Documentation/devicetree/bindings/i2c/i2c-aspeed.txt
@@ -0,0 +1,48 @@
+Device tree configuration for the I2C busses on the AST24XX and AST25XX SoCs.
+
+Required Properties:
+- #address-cells	: should be 1
+- #size-cells		: should be 0
+- reg			: address offset and range of bus
+- compatible		: should be "aspeed,ast2400-i2c-bus"
+			  or "aspeed,ast2500-i2c-bus"
+- clocks		: root clock of bus, should reference the APB
+			  clock
+- interrupts		: interrupt number
+- interrupt-parent	: interrupt controller for bus, should reference a
+			  aspeed,ast2400-i2c-ic or aspeed,ast2500-i2c-ic
+			  interrupt controller
+
+Optional Properties:
+- bus-frequency	: frequency of the bus clock in Hz defaults to 100 kHz when not
+		  specified
+- multi-master	: states that there is another master active on this bus.
+
+Example:
+
+i2c {
+	compatible = "simple-bus";
+	#address-cells = <1>;
+	#size-cells = <1>;
+	ranges = <0 0x1e78a000 0x1000>;
+
+	i2c_ic: interrupt-controller@0 {
+		#interrupt-cells = <1>;
+		compatible = "aspeed,ast2400-i2c-ic";
+		reg = <0x0 0x40>;
+		interrupts = <12>;
+		interrupt-controller;
+	};
+
+	i2c0: i2c-bus@40 {
+		#address-cells = <1>;
+		#size-cells = <0>;
+		#interrupt-cells = <1>;
+		reg = <0x40 0x40>;
+		compatible = "aspeed,ast2400-i2c-bus";
+		clocks = <&clk_apb>;
+		bus-frequency = <100000>;
+		interrupts = <0>;
+		interrupt-parent = <&i2c_ic>;
+	};
+};
diff --git a/Documentation/devicetree/bindings/i2c/i2c-designware.txt b/Documentation/devicetree/bindings/i2c/i2c-designware.txt
index fee26dc3e858..fbb0a6d8b964 100644
--- a/Documentation/devicetree/bindings/i2c/i2c-designware.txt
+++ b/Documentation/devicetree/bindings/i2c/i2c-designware.txt
@@ -20,7 +20,7 @@ Optional properties :
  - i2c-sda-falling-time-ns : should contain the SDA falling time in nanoseconds.
    This value which is by default 300ns is used to compute the tHIGH period.
 
-Example :
+Examples :
 
 	i2c@f0000 {
 		#address-cells = <1>;
@@ -43,3 +43,17 @@ Example :
 		i2c-sda-falling-time-ns = <300>;
 		i2c-scl-falling-time-ns = <300>;
 	};
+
+	i2c@1120000 {
+		#address-cells = <1>;
+		#size-cells = <0>;
+		reg = <0x2000 0x100>;
+		clock-frequency = <400000>;
+		clocks = <&i2cclk>;
+		interrupts = <0>;
+
+		eeprom@64 {
+			compatible = "linux,slave-24c02";
+			reg = <0x40000064>;
+		};
+	};
diff --git a/Documentation/devicetree/bindings/i2c/i2c-pca-platform.txt b/Documentation/devicetree/bindings/i2c/i2c-pca-platform.txt
new file mode 100644
index 000000000000..f1f3876bb8e8
--- /dev/null
+++ b/Documentation/devicetree/bindings/i2c/i2c-pca-platform.txt
@@ -0,0 +1,29 @@
+* NXP PCA PCA9564/PCA9665 I2C controller
+
+The PCA9564/PCA9665 serves as an interface between most standard
+parallel-bus microcontrollers/microprocessors and the serial I2C-bus
+and allows the parallel bus system to communicate bi-directionally
+with the I2C-bus.
+
+Required properties :
+
+ - reg : Offset and length of the register set for the device
+ - compatible : one of "nxp,pca9564" or "nxp,pca9665"
+
+Optional properties
+ - interrupts : the interrupt number
+ - interrupt-parent : the phandle for the interrupt controller.
+   If an interrupt is not specified polling will be used.
+ - reset-gpios : gpio specifier for gpio connected to RESET_N pin. As the line
+   is active low, it should be marked GPIO_ACTIVE_LOW.
+ - clock-frequency : I2C bus frequency.
+
+Example:
+	i2c0: i2c@80000 {
+		compatible = "nxp,pca9564";
+		#address-cells = <1>;
+		#size-cells = <0>;
+		reg = <0x80000 0x4>;
+		reset-gpios = <&gpio1 0 GPIO_ACTIVE_LOW>;
+		clock-frequency = <100000>;
+	};
diff --git a/Documentation/devicetree/bindings/i2c/i2c-zx2967.txt b/Documentation/devicetree/bindings/i2c/i2c-zx2967.txt
new file mode 100644
index 000000000000..cb806d1ae4c9
--- /dev/null
+++ b/Documentation/devicetree/bindings/i2c/i2c-zx2967.txt
@@ -0,0 +1,22 @@
+ZTE zx2967 I2C controller
+
+Required properties:
+ - compatible: must be "zte,zx296718-i2c"
+ - reg: physical address and length of the device registers
+ - interrupts: a single interrupt specifier
+ - clocks: clock for the device
+ - #address-cells: should be <1>
+ - #size-cells: should be <0>
+ - clock-frequency: the desired I2C bus clock frequency.
+
+Examples:
+
+	i2c@112000 {
+		compatible = "zte,zx296718-i2c";
+		reg = <0x00112000 0x1000>;
+		interrupts = <GIC_SPI 112 IRQ_TYPE_LEVEL_HIGH>;
+		clocks = <&osc24m>;
+		#address-cells = <1>
+		#size-cells = <0>;
+		clock-frequency = <1600000>;
+	};
diff --git a/Documentation/devicetree/bindings/iommu/arm,smmu-v3.txt b/Documentation/devicetree/bindings/iommu/arm,smmu-v3.txt
index be57550e14e4..c9abbf3e4f68 100644
--- a/Documentation/devicetree/bindings/iommu/arm,smmu-v3.txt
+++ b/Documentation/devicetree/bindings/iommu/arm,smmu-v3.txt
@@ -26,6 +26,12 @@ the PCIe specification.
                       * "priq"      - PRI Queue not empty
                       * "cmdq-sync" - CMD_SYNC complete
                       * "gerror"    - Global Error activated
+                      * "combined"  - The combined interrupt is optional,
+				      and should only be provided if the
+				      hardware supports just a single,
+				      combined interrupt line.
+				      If provided, then the combined interrupt
+				      will be used in preference to any others.
 
 - #iommu-cells      : See the generic IOMMU binding described in
                         devicetree/bindings/pci/pci-iommu.txt
@@ -49,6 +55,12 @@ the PCIe specification.
 - hisilicon,broken-prefetch-cmd
                     : Avoid sending CMD_PREFETCH_* commands to the SMMU.
 
+- cavium,cn9900-broken-page1-regspace
+                    : Replaces all page 1 offsets used for EVTQ_PROD/CONS,
+		      PRIQ_PROD/CONS register access with page 0 offsets.
+		      Set for Cavium ThunderX2 silicon that doesn't support
+		      SMMU page1 register space.
+
 ** Example
 
         smmu@2b400000 {
diff --git a/Documentation/devicetree/bindings/mmc/exynos-dw-mshc.txt b/Documentation/devicetree/bindings/mmc/exynos-dw-mshc.txt
index aad98442788b..a58c173b7ab9 100644
--- a/Documentation/devicetree/bindings/mmc/exynos-dw-mshc.txt
+++ b/Documentation/devicetree/bindings/mmc/exynos-dw-mshc.txt
@@ -78,7 +78,6 @@ Example:
 	};
 
 	dwmmc0@12200000 {
-		num-slots = <1>;
 		cap-mmc-highspeed;
 		cap-sd-highspeed;
 		broken-cd;
diff --git a/Documentation/devicetree/bindings/mmc/img-dw-mshc.txt b/Documentation/devicetree/bindings/mmc/img-dw-mshc.txt
index 85de99fcaa2f..c54e577eea07 100644
--- a/Documentation/devicetree/bindings/mmc/img-dw-mshc.txt
+++ b/Documentation/devicetree/bindings/mmc/img-dw-mshc.txt
@@ -24,6 +24,5 @@ Example:
 
 		fifo-depth = <0x20>;
 		bus-width = <4>;
-		num-slots = <1>;
 		disable-wp;
 	};
diff --git a/Documentation/devicetree/bindings/mmc/k3-dw-mshc.txt b/Documentation/devicetree/bindings/mmc/k3-dw-mshc.txt
index 8af1afcb86dc..07242d141773 100644
--- a/Documentation/devicetree/bindings/mmc/k3-dw-mshc.txt
+++ b/Documentation/devicetree/bindings/mmc/k3-dw-mshc.txt
@@ -36,7 +36,6 @@ Example:
 
 	/* Board portion */
 	dwmmc0@fcd03000 {
-		num-slots = <1>;
 		vmmc-supply = <&ldo12>;
 		fifo-depth = <0x100>;
 		pinctrl-names = "default";
@@ -52,7 +51,6 @@ Example:
 
 	dwmmc_1: dwmmc1@f723e000 {
 		compatible = "hisilicon,hi6220-dw-mshc";
-		num-slots = <0x1>;
 		bus-width = <0x4>;
 		disable-wp;
 		cap-sd-highspeed;
diff --git a/Documentation/devicetree/bindings/mmc/synopsys-dw-mshc.txt b/Documentation/devicetree/bindings/mmc/synopsys-dw-mshc.txt
index 9cb55ca57461..ef3e5f14067a 100644
--- a/Documentation/devicetree/bindings/mmc/synopsys-dw-mshc.txt
+++ b/Documentation/devicetree/bindings/mmc/synopsys-dw-mshc.txt
@@ -12,12 +12,12 @@ Required Properties:
 * #address-cells: should be 1.
 * #size-cells: should be 0.
 
-# Slots: The slot specific information are contained within child-nodes with
-  each child-node representing a supported slot. There should be atleast one
-  child node representing a card slot. The name of the child node representing
-  the slot is recommended to be slot@n where n is the unique number of the slot
-  connected to the controller. The following are optional properties which
-  can be included in the slot child node.
+# Slots (DEPRECATED): The slot specific information are contained within
+  child-nodes with each child-node representing a supported slot. There should
+  be atleast one child node representing a card slot. The name of the child node
+  representing the slot is recommended to be slot@n where n is the unique number
+  of the slot connected to the controller. The following are optional properties
+  which can be included in the slot child node.
 
 	* reg: specifies the physical slot number. The valid values of this
 	  property is 0 to (num-slots -1), where num-slots is the value
@@ -63,7 +63,7 @@ Optional properties:
   clock(cclk_out). If it's not specified, max is 200MHZ and min is 400KHz by default.
 	  (Use the "max-frequency" instead of "clock-freq-min-max".)
 
-* num-slots: specifies the number of slots supported by the controller.
+* num-slots (DEPRECATED): specifies the number of slots supported by the controller.
   The number of physical slots actually used could be equal or less than the
   value specified by num-slots. If this property is not specified, the value
   of num-slot property is assumed to be 1.
@@ -124,7 +124,6 @@ board specific portions as listed below.
 	dwmmc0@12200000 {
 		clock-frequency = <400000000>;
 		clock-freq-min-max = <400000 200000000>;
-		num-slots = <1>;
 		broken-cd;
 		fifo-depth = <0x80>;
 		card-detect-delay = <200>;
@@ -139,7 +138,6 @@ board specific portions as listed below.
 	dwmmc0@12200000 {
 		clock-frequency = <400000000>;
 		clock-freq-min-max = <400000 200000000>;
-		num-slots = <1>;
 		broken-cd;
 		fifo-depth = <0x80>;
 		card-detect-delay = <200>;
diff --git a/Documentation/devicetree/bindings/mmc/zx-dw-mshc.txt b/Documentation/devicetree/bindings/mmc/zx-dw-mshc.txt
index eaade0e5adeb..906819a90c2b 100644
--- a/Documentation/devicetree/bindings/mmc/zx-dw-mshc.txt
+++ b/Documentation/devicetree/bindings/mmc/zx-dw-mshc.txt
@@ -25,7 +25,6 @@ Example:
 		clock-frequency = <50000000>;
 		clocks = <&topcrm SD0_AHB>, <&topcrm SD0_WCLK>;
 		clock-names = "biu", "ciu";
-		num-slots = <1>;
 		max-frequency = <50000000>;
 		cap-sdio-irq;
 		cap-sd-highspeed;
diff --git a/Documentation/devicetree/bindings/mtd/denali-nand.txt b/Documentation/devicetree/bindings/mtd/denali-nand.txt
index e593bbeb2115..504291d2e5c2 100644
--- a/Documentation/devicetree/bindings/mtd/denali-nand.txt
+++ b/Documentation/devicetree/bindings/mtd/denali-nand.txt
@@ -3,10 +3,23 @@
 Required properties:
   - compatible : should be one of the following:
       "altr,socfpga-denali-nand"            - for Altera SOCFPGA
+      "socionext,uniphier-denali-nand-v5a"  - for Socionext UniPhier (v5a)
+      "socionext,uniphier-denali-nand-v5b"  - for Socionext UniPhier (v5b)
   - reg : should contain registers location and length for data and reg.
   - reg-names: Should contain the reg names "nand_data" and "denali_reg"
   - interrupts : The interrupt number.
 
+Optional properties:
+  - nand-ecc-step-size: see nand.txt for details.  If present, the value must be
+      512        for "altr,socfpga-denali-nand"
+      1024       for "socionext,uniphier-denali-nand-v5a"
+      1024       for "socionext,uniphier-denali-nand-v5b"
+  - nand-ecc-strength: see nand.txt for details.  Valid values are:
+      8, 15      for "altr,socfpga-denali-nand"
+      8, 16, 24  for "socionext,uniphier-denali-nand-v5a"
+      8, 16      for "socionext,uniphier-denali-nand-v5b"
+  - nand-ecc-maximize: see nand.txt for details
+
 The device tree may optionally contain sub-nodes describing partitions of the
 address space. See partition.txt for more detail.
 
diff --git a/Documentation/devicetree/bindings/mtd/elm.txt b/Documentation/devicetree/bindings/mtd/elm.txt
index 8c1528c421d4..59ddc61c1076 100644
--- a/Documentation/devicetree/bindings/mtd/elm.txt
+++ b/Documentation/devicetree/bindings/mtd/elm.txt
@@ -1,7 +1,7 @@
 Error location module
 
 Required properties:
-- compatible: Must be "ti,am33xx-elm"
+- compatible: Must be "ti,am3352-elm"
 - reg: physical base address and size of the registers map.
 - interrupts: Interrupt number for the elm.
 
diff --git a/Documentation/devicetree/bindings/mtd/gpmc-nand.txt b/Documentation/devicetree/bindings/mtd/gpmc-nand.txt
index 174f68c26c1b..dd559045593d 100644
--- a/Documentation/devicetree/bindings/mtd/gpmc-nand.txt
+++ b/Documentation/devicetree/bindings/mtd/gpmc-nand.txt
@@ -5,7 +5,7 @@ the GPMC controller with a name of "nand".
 
 All timing relevant properties as well as generic gpmc child properties are
 explained in a separate documents - please refer to
-Documentation/devicetree/bindings/bus/ti-gpmc.txt
+Documentation/devicetree/bindings/memory-controllers/omap-gpmc.txt
 
 For NAND specific properties such as ECC modes or bus width, please refer to
 Documentation/devicetree/bindings/mtd/nand.txt
diff --git a/Documentation/devicetree/bindings/mtd/gpmc-nor.txt b/Documentation/devicetree/bindings/mtd/gpmc-nor.txt
index 4828c17bb784..131d3a74d0bd 100644
--- a/Documentation/devicetree/bindings/mtd/gpmc-nor.txt
+++ b/Documentation/devicetree/bindings/mtd/gpmc-nor.txt
@@ -5,7 +5,7 @@ child nodes of the GPMC controller with a name of "nor".
 
 All timing relevant properties as well as generic GPMC child properties are
 explained in a separate documents. Please refer to
-Documentation/devicetree/bindings/bus/ti-gpmc.txt
+Documentation/devicetree/bindings/memory-controllers/omap-gpmc.txt
 
 Required properties:
 - bank-width: 		Width of NOR flash in bytes. GPMC supports 8-bit and
@@ -28,7 +28,7 @@ Required properties:
 
 Optional properties:
 - gpmc,XXX		Additional GPMC timings and settings parameters. See
-			Documentation/devicetree/bindings/bus/ti-gpmc.txt
+			Documentation/devicetree/bindings/memory-controllers/omap-gpmc.txt
 
 Optional properties for partition table parsing:
 - #address-cells: should be set to 1
diff --git a/Documentation/devicetree/bindings/mtd/gpmc-onenand.txt b/Documentation/devicetree/bindings/mtd/gpmc-onenand.txt
index 5d8fa527c496..b6e8bfd024f4 100644
--- a/Documentation/devicetree/bindings/mtd/gpmc-onenand.txt
+++ b/Documentation/devicetree/bindings/mtd/gpmc-onenand.txt
@@ -5,7 +5,7 @@ the GPMC controller with a name of "onenand".
 
 All timing relevant properties as well as generic gpmc child properties are
 explained in a separate documents - please refer to
-Documentation/devicetree/bindings/bus/ti-gpmc.txt
+Documentation/devicetree/bindings/memory-controllers/omap-gpmc.txt
 
 Required properties:
 
diff --git a/Documentation/devicetree/bindings/mtd/gpmi-nand.txt b/Documentation/devicetree/bindings/mtd/gpmi-nand.txt
index d02acaff3c35..b289ef3c1b7e 100644
--- a/Documentation/devicetree/bindings/mtd/gpmi-nand.txt
+++ b/Documentation/devicetree/bindings/mtd/gpmi-nand.txt
@@ -4,7 +4,12 @@ The GPMI nand controller provides an interface to control the
 NAND flash chips.
 
 Required properties:
-  - compatible : should be "fsl,<chip>-gpmi-nand"
+  - compatible : should be "fsl,<chip>-gpmi-nand", chip can be:
+    * imx23
+    * imx28
+    * imx6q
+    * imx6sx
+    * imx7d
   - reg : should contain registers location and length for gpmi and bch.
   - reg-names: Should contain the reg names "gpmi-nand" and "bch"
   - interrupts : BCH interrupt number.
@@ -13,6 +18,13 @@ Required properties:
     and GPMI DMA channel ID.
     Refer to dma.txt and fsl-mxs-dma.txt for details.
   - dma-names: Must be "rx-tx".
+  - clocks : clocks phandle and clock specifier corresponding to each clock
+    specified in clock-names.
+  - clock-names : The "gpmi_io" clock is always required. Which clocks are
+    exactly required depends on chip:
+    * imx23/imx28 : "gpmi_io"
+    * imx6q/sx : "gpmi_io", "gpmi_apb", "gpmi_bch", "gpmi_bch_apb", "per1_bch"
+    * imx7d : "gpmi_io", "gpmi_bch_apb"
 
 Optional properties:
   - nand-on-flash-bbt: boolean to enable on flash bbt option if not
diff --git a/Documentation/devicetree/bindings/mtd/microchip,mchp23k256.txt b/Documentation/devicetree/bindings/mtd/microchip,mchp23k256.txt
new file mode 100644
index 000000000000..7328eb92a03c
--- /dev/null
+++ b/Documentation/devicetree/bindings/mtd/microchip,mchp23k256.txt
@@ -0,0 +1,18 @@
+* MTD SPI driver for Microchip 23K256 (and similar) serial SRAM
+
+Required properties:
+- #address-cells, #size-cells : Must be present if the device has sub-nodes
+  representing partitions.
+- compatible : Must be one of "microchip,mchp23k256" or "microchip,mchp23lcv1024"
+- reg : Chip-Select number
+- spi-max-frequency : Maximum frequency of the SPI bus the chip can operate at
+
+Example:
+
+	spi-sram@0 {
+		#address-cells = <1>;
+		#size-cells = <1>;
+		compatible = "microchip,mchp23k256";
+		reg = <0>;
+		spi-max-frequency = <20000000>;
+	};
diff --git a/Documentation/devicetree/bindings/mtd/mtk-nand.txt b/Documentation/devicetree/bindings/mtd/mtk-nand.txt
index 069c192ed5c2..dbf9e054c11c 100644
--- a/Documentation/devicetree/bindings/mtd/mtk-nand.txt
+++ b/Documentation/devicetree/bindings/mtd/mtk-nand.txt
@@ -12,7 +12,8 @@ tree nodes.
 
 The first part of NFC is NAND Controller Interface (NFI) HW.
 Required NFI properties:
-- compatible:			Should be "mediatek,mtxxxx-nfc".
+- compatible:			Should be one of "mediatek,mt2701-nfc",
+				"mediatek,mt2712-nfc".
 - reg:				Base physical address and size of NFI.
 - interrupts:			Interrupts of NFI.
 - clocks:			NFI required clocks.
@@ -141,7 +142,7 @@ Example:
 ==============
 
 Required BCH properties:
-- compatible:	Should be "mediatek,mtxxxx-ecc".
+- compatible:	Should be one of "mediatek,mt2701-ecc", "mediatek,mt2712-ecc".
 - reg:		Base physical address and size of ECC.
 - interrupts:	Interrupts of ECC.
 - clocks:	ECC required clocks.
diff --git a/Documentation/devicetree/bindings/mtd/nand.txt b/Documentation/devicetree/bindings/mtd/nand.txt
index b05601600083..133f3813719c 100644
--- a/Documentation/devicetree/bindings/mtd/nand.txt
+++ b/Documentation/devicetree/bindings/mtd/nand.txt
@@ -21,7 +21,7 @@ Optional NAND chip properties:
 
 - nand-ecc-mode : String, operation mode of the NAND ecc mode.
 		  Supported values are: "none", "soft", "hw", "hw_syndrome",
-		  "hw_oob_first".
+		  "hw_oob_first", "on-die".
 		  Deprecated values:
 		  "soft_bch": use "soft" and nand-ecc-algo instead
 - nand-ecc-algo: string, algorithm of NAND ECC.
diff --git a/Documentation/devicetree/bindings/mtd/partition.txt b/Documentation/devicetree/bindings/mtd/partition.txt
index 81a224da63be..36f3b769a626 100644
--- a/Documentation/devicetree/bindings/mtd/partition.txt
+++ b/Documentation/devicetree/bindings/mtd/partition.txt
@@ -1,29 +1,49 @@
-Representing flash partitions in devicetree
+Flash partitions in device tree
+===============================
 
-Partitions can be represented by sub-nodes of an mtd device. This can be used
+Flash devices can be partitioned into one or more functional ranges (e.g. "boot
+code", "nvram", "kernel").
+
+Different devices may be partitioned in a different ways. Some may use a fixed
+flash layout set at production time. Some may use on-flash table that describes
+the geometry and naming/purpose of each functional region. It is also possible
+to see these methods mixed.
+
+To assist system software in locating partitions, we allow describing which
+method is used for a given flash device. To describe the method there should be
+a subnode of the flash device that is named 'partitions'. It must have a
+'compatible' property, which is used to identify the method to use.
+
+We currently only document a binding for fixed layouts.
+
+
+Fixed Partitions
+================
+
+Partitions can be represented by sub-nodes of a flash device. This can be used
 on platforms which have strong conventions about which portions of a flash are
 used for what purposes, but which don't use an on-flash partition table such
 as RedBoot.
 
-The partition table should be a subnode of the mtd node and should be named
+The partition table should be a subnode of the flash node and should be named
 'partitions'. This node should have the following property:
 - compatible : (required) must be "fixed-partitions"
 Partitions are then defined in subnodes of the partitions node.
 
-For backwards compatibility partitions as direct subnodes of the mtd device are
+For backwards compatibility partitions as direct subnodes of the flash device are
 supported. This use is discouraged.
 NOTE: also for backwards compatibility, direct subnodes that have a compatible
 string are not considered partitions, as they may be used for other bindings.
 
 #address-cells & #size-cells must both be present in the partitions subnode of the
-mtd device. There are two valid values for both:
+flash device. There are two valid values for both:
 <1>: for partitions that require a single 32-bit cell to represent their
      size/address (aka the value is below 4 GiB)
 <2>: for partitions that require two 32-bit cells to represent their
      size/address (aka the value is 4 GiB or greater).
 
 Required properties:
-- reg : The partition's offset and size within the mtd bank.
+- reg : The partition's offset and size within the flash
 
 Optional properties:
 - label : The label / name for this partition.  If omitted, the label is taken
diff --git a/Documentation/devicetree/bindings/net/brcm,amac.txt b/Documentation/devicetree/bindings/net/brcm,amac.txt
index 2fefa1a44afd..ad16c1f481f7 100644
--- a/Documentation/devicetree/bindings/net/brcm,amac.txt
+++ b/Documentation/devicetree/bindings/net/brcm,amac.txt
@@ -11,6 +11,7 @@ Required properties:
  - reg-names:	Names of the registers.
 		"amac_base":	Address and length of the GMAC registers
 		"idm_base":	Address and length of the GMAC IDM registers
+				(required for NSP and Northstar2)
 		"nicpm_base":	Address and length of the NIC Port Manager
 				registers (required for Northstar2)
  - interrupts:	Interrupt number
diff --git a/Documentation/devicetree/bindings/net/brcm,bgmac-nsp.txt b/Documentation/devicetree/bindings/net/brcm,bgmac-nsp.txt
deleted file mode 100644
index 022946caa7e2..000000000000
--- a/Documentation/devicetree/bindings/net/brcm,bgmac-nsp.txt
+++ /dev/null
@@ -1,24 +0,0 @@
-Broadcom GMAC Ethernet Controller Device Tree Bindings
--------------------------------------------------------------
-
-Required properties:
- - compatible:	"brcm,bgmac-nsp"
- - reg:		Address and length of the GMAC registers,
-		Address and length of the GMAC IDM registers
- - reg-names:	Names of the registers.  Must have both "gmac_base" and
-		"idm_base"
- - interrupts:	Interrupt number
-
-Optional properties:
-- mac-address:	See ethernet.txt file in the same directory
-
-Examples:
-
-gmac0: ethernet@18022000 {
-	compatible = "brcm,bgmac-nsp";
-	reg = <0x18022000 0x1000>,
-	      <0x18110000 0x1000>;
-	reg-names = "gmac_base", "idm_base";
-	interrupts = <GIC_SPI 147 IRQ_TYPE_LEVEL_HIGH>;
-	status = "disabled";
-};
diff --git a/Documentation/devicetree/bindings/net/gpmc-eth.txt b/Documentation/devicetree/bindings/net/gpmc-eth.txt
index ace4a64b3695..f7da3d73ca1b 100644
--- a/Documentation/devicetree/bindings/net/gpmc-eth.txt
+++ b/Documentation/devicetree/bindings/net/gpmc-eth.txt
@@ -9,7 +9,7 @@ the GPMC controller with an "ethernet" name.
 
 All timing relevant properties as well as generic GPMC child properties are
 explained in a separate documents. Please refer to
-Documentation/devicetree/bindings/bus/ti-gpmc.txt
+Documentation/devicetree/bindings/memory-controllers/omap-gpmc.txt
 
 For the properties relevant to the ethernet controller connected to the GPMC
 refer to the binding documentation of the device. For example, the documentation
@@ -43,7 +43,7 @@ Required properties:
 
 Optional properties:
 - gpmc,XXX		Additional GPMC timings and settings parameters. See
-			Documentation/devicetree/bindings/bus/ti-gpmc.txt
+			Documentation/devicetree/bindings/memory-controllers/omap-gpmc.txt
 
 Example:
 
diff --git a/Documentation/devicetree/bindings/nvmem/rockchip-efuse.txt b/Documentation/devicetree/bindings/nvmem/rockchip-efuse.txt
index 194926f77194..1ff02afdc55a 100644
--- a/Documentation/devicetree/bindings/nvmem/rockchip-efuse.txt
+++ b/Documentation/devicetree/bindings/nvmem/rockchip-efuse.txt
@@ -4,7 +4,7 @@ Required properties:
 - compatible: Should be one of the following.
   - "rockchip,rk3066a-efuse" - for RK3066a SoCs.
   - "rockchip,rk3188-efuse" - for RK3188 SoCs.
-  - "rockchip,rk322x-efuse" - for RK322x SoCs.
+  - "rockchip,rk3228-efuse" - for RK3228 SoCs.
   - "rockchip,rk3288-efuse" - for RK3288 SoCs.
   - "rockchip,rk3399-efuse" - for RK3399 SoCs.
 - reg: Should contain the registers location and exact eFuse size
diff --git a/Documentation/devicetree/bindings/ptp/brcm,ptp-dte.txt b/Documentation/devicetree/bindings/ptp/brcm,ptp-dte.txt
index 07590bcdad15..7c04e22a5d6a 100644
--- a/Documentation/devicetree/bindings/ptp/brcm,ptp-dte.txt
+++ b/Documentation/devicetree/bindings/ptp/brcm,ptp-dte.txt
@@ -1,13 +1,20 @@
-* Broadcom Digital Timing Engine(DTE) based PTP clock driver
+* Broadcom Digital Timing Engine(DTE) based PTP clock
 
 Required properties:
-- compatible: should be "brcm,ptp-dte"
+- compatible: should contain the core compatibility string
+              and the SoC compatibility string. The SoC
+              compatibility string is to handle SoC specific
+              hardware differences.
+              Core compatibility string:
+                 "brcm,ptp-dte"
+              SoC compatibility strings:
+                 "brcm,iproc-ptp-dte" - for iproc based SoC's
 - reg: address and length of the DTE block's NCO registers
 
 Example:
 
-ptp_dte: ptp_dte@180af650 {
-	compatible = "brcm,ptp-dte";
+ptp: ptp-dte@180af650 {
+	compatible = "brcm,iproc-ptp-dte", "brcm,ptp-dte";
 	reg = <0x180af650 0x10>;
 	status = "okay";
 };
diff --git a/Documentation/devicetree/bindings/pwm/pwm-meson.txt b/Documentation/devicetree/bindings/pwm/pwm-meson.txt
index 5376a4468cb6..5b07bebbf6f7 100644
--- a/Documentation/devicetree/bindings/pwm/pwm-meson.txt
+++ b/Documentation/devicetree/bindings/pwm/pwm-meson.txt
@@ -2,7 +2,9 @@ Amlogic Meson PWM Controller
 ============================
 
 Required properties:
-- compatible: Shall contain "amlogic,meson8b-pwm" or "amlogic,meson-gxbb-pwm".
+- compatible: Shall contain "amlogic,meson8b-pwm"
+                         or "amlogic,meson-gxbb-pwm"
+                         or "amlogic,meson-gxbb-ao-pwm"
 - #pwm-cells: Should be 3. See pwm.txt in this directory for a description of
   the cells format.
 
diff --git a/Documentation/devicetree/bindings/pwm/pwm-stm32.txt b/Documentation/devicetree/bindings/pwm/pwm-stm32.txt
index 6dd040363e5e..3e6d55018d7a 100644
--- a/Documentation/devicetree/bindings/pwm/pwm-stm32.txt
+++ b/Documentation/devicetree/bindings/pwm/pwm-stm32.txt
@@ -24,7 +24,7 @@ Example:
 		compatible = "st,stm32-timers";
 		reg = <0x40010000 0x400>;
 		clocks = <&rcc 0 160>;
-		clock-names = "clk_int";
+		clock-names = "int";
 
 		pwm {
 			compatible = "st,stm32-pwm";
diff --git a/Documentation/devicetree/bindings/pwm/renesas,pwm-rcar.txt b/Documentation/devicetree/bindings/pwm/renesas,pwm-rcar.txt
index d6de64335022..7e94b802395d 100644
--- a/Documentation/devicetree/bindings/pwm/renesas,pwm-rcar.txt
+++ b/Documentation/devicetree/bindings/pwm/renesas,pwm-rcar.txt
@@ -8,6 +8,7 @@ Required Properties:
  - "renesas,pwm-r8a7791": for R-Car M2-W
  - "renesas,pwm-r8a7794": for R-Car E2
  - "renesas,pwm-r8a7795": for R-Car H3
+ - "renesas,pwm-r8a7796": for R-Car M3-W
 - reg: base address and length of the registers block for the PWM.
 - #pwm-cells: should be 2. See pwm.txt in this directory for a description of
   the cells format.
diff --git a/Documentation/devicetree/bindings/rtc/brcm,brcmstb-waketimer.txt b/Documentation/devicetree/bindings/rtc/brcm,brcmstb-waketimer.txt
new file mode 100644
index 000000000000..1d990bcc0baf
--- /dev/null
+++ b/Documentation/devicetree/bindings/rtc/brcm,brcmstb-waketimer.txt
@@ -0,0 +1,22 @@
+Broadcom STB wake-up Timer
+
+The Broadcom STB wake-up timer provides a 27Mhz resolution timer, with the
+ability to wake up the system from low-power suspend/standby modes.
+
+Required properties:
+- compatible     : should contain "brcm,brcmstb-waketimer"
+- reg            : the register start and length for the WKTMR block
+- interrupts     : The TIMER interrupt
+- interrupt-parent: The phandle to the Always-On (AON) Power Management (PM) L2
+                    interrupt controller node
+- clocks	 : The phandle to the UPG fixed clock (27Mhz domain)
+
+Example:
+
+waketimer@f0411580 {
+	compatible = "brcm,brcmstb-waketimer";
+	reg = <0xf0411580 0x14>;
+	interrupts = <0x3>;
+	interrupt-parent = <&aon_pm_l2_intc>;
+	clocks = <&upg_fixed>;
+};
diff --git a/Documentation/devicetree/bindings/rtc/cortina,gemini.txt b/Documentation/devicetree/bindings/rtc/cortina,gemini.txt
deleted file mode 100644
index 4ce4e794ddbb..000000000000
--- a/Documentation/devicetree/bindings/rtc/cortina,gemini.txt
+++ /dev/null
@@ -1,14 +0,0 @@
-* Cortina Systems Gemini RTC
-
-Gemini SoC real-time clock.
-
-Required properties:
-- compatible : Should be "cortina,gemini-rtc"
-
-Examples:
-
-rtc@45000000 {
-	compatible = "cortina,gemini-rtc";
-	reg = <0x45000000 0x100>;
-	interrupts = <17 IRQ_TYPE_LEVEL_HIGH>;
-};
diff --git a/Documentation/devicetree/bindings/rtc/faraday,ftrtc010.txt b/Documentation/devicetree/bindings/rtc/faraday,ftrtc010.txt
new file mode 100644
index 000000000000..e3938f5e0b6c
--- /dev/null
+++ b/Documentation/devicetree/bindings/rtc/faraday,ftrtc010.txt
@@ -0,0 +1,28 @@
+* Faraday Technology FTRTC010 Real Time Clock
+
+This RTC appears in for example the Storlink Gemini family of
+SoCs.
+
+Required properties:
+- compatible : Should be one of:
+  "faraday,ftrtc010"
+  "cortina,gemini-rtc", "faraday,ftrtc010"
+
+Optional properties:
+- clocks: when present should contain clock references to the
+  PCLK and EXTCLK clocks. Faraday calls the later CLK1HZ and
+  says the clock should be 1 Hz, but implementers actually seem
+  to choose different clocks here, like Cortina who chose
+  32768 Hz (a typical low-power clock).
+- clock-names: should name the clocks "PCLK" and "EXTCLK"
+  respectively.
+
+Examples:
+
+rtc@45000000 {
+	compatible = "cortina,gemini-rtc";
+	reg = <0x45000000 0x100>;
+	interrupts = <17 IRQ_TYPE_LEVEL_HIGH>;
+	clocks = <&foo 0>, <&foo 1>;
+	clock-names = "PCLK", "EXTCLK";
+};
diff --git a/Documentation/devicetree/bindings/rtc/st,stm32-rtc.txt b/Documentation/devicetree/bindings/rtc/st,stm32-rtc.txt
index e2837b951237..0a4c371a9b7a 100644
--- a/Documentation/devicetree/bindings/rtc/st,stm32-rtc.txt
+++ b/Documentation/devicetree/bindings/rtc/st,stm32-rtc.txt
@@ -1,17 +1,25 @@
 STM32 Real Time Clock
 
 Required properties:
-- compatible: "st,stm32-rtc".
+- compatible: can be either "st,stm32-rtc" or "st,stm32h7-rtc", depending on
+  the device is compatible with stm32(f4/f7) or stm32h7.
 - reg: address range of rtc register set.
-- clocks: reference to the clock entry ck_rtc.
+- clocks: can use up to two clocks, depending on part used:
+  - "rtc_ck": RTC clock source.
+    It is required on stm32(f4/f7) and stm32h7.
+  - "pclk": RTC APB interface clock.
+    It is not present on stm32(f4/f7).
+    It is required on stm32h7.
+- clock-names: must be "rtc_ck" and "pclk".
+    It is required only on stm32h7.
 - interrupt-parent: phandle for the interrupt controller.
 - interrupts: rtc alarm interrupt.
 - st,syscfg: phandle for pwrcfg, mandatory to disable/enable backup domain
   (RTC registers) write protection.
 
-Optional properties (to override default ck_rtc parent clock):
-- assigned-clocks: reference to the ck_rtc clock entry.
-- assigned-clock-parents: phandle of the new parent clock of ck_rtc.
+Optional properties (to override default rtc_ck parent clock):
+- assigned-clocks: reference to the rtc_ck clock entry.
+- assigned-clock-parents: phandle of the new parent clock of rtc_ck.
 
 Example:
 
@@ -25,3 +33,17 @@ Example:
 		interrupts = <17 1>;
 		st,syscfg = <&pwrcfg>;
 	};
+
+	rtc: rtc@58004000 {
+		compatible = "st,stm32h7-rtc";
+		reg = <0x58004000 0x400>;
+		clocks = <&rcc RTCAPB_CK>, <&rcc RTC_CK>;
+		clock-names = "pclk", "rtc_ck";
+		assigned-clocks = <&rcc RTC_CK>;
+		assigned-clock-parents = <&rcc LSE_CK>;
+		interrupt-parent = <&exti>;
+		interrupts = <17 1>;
+		interrupt-names = "alarm";
+		st,syscfg = <&pwrcfg>;
+		status = "disabled";
+	};
diff --git a/Documentation/devicetree/bindings/serial/fsl-imx-uart.txt b/Documentation/devicetree/bindings/serial/fsl-imx-uart.txt
index e6b572409cf5..574c3a2c77d5 100644
--- a/Documentation/devicetree/bindings/serial/fsl-imx-uart.txt
+++ b/Documentation/devicetree/bindings/serial/fsl-imx-uart.txt
@@ -9,7 +9,6 @@ Optional properties:
 - fsl,irda-mode : Indicate the uart supports irda mode
 - fsl,dte-mode : Indicate the uart works in DTE mode. The uart works
                   in DCE mode by default.
-- fsl,dma-size : Indicate the size of the DMA buffer and its periods
 
 Please check Documentation/devicetree/bindings/serial/serial.txt
 for the complete list of generic properties.
@@ -29,5 +28,4 @@ uart1: serial@73fbc000 {
 	interrupts = <31>;
 	uart-has-rtscts;
 	fsl,dte-mode;
-	fsl,dma-size = <1024 4>;
 };
diff --git a/Documentation/digsig.txt b/Documentation/digsig.txt
index 3f682889068b..f6a8902d3ef7 100644
--- a/Documentation/digsig.txt
+++ b/Documentation/digsig.txt
@@ -1,13 +1,20 @@
+==================================
 Digital Signature Verification API
+==================================
 
-CONTENTS
+:Author: Dmitry Kasatkin
+:Date: 06.10.2011
 
-1. Introduction
-2. API
-3. User-space utilities
 
+.. CONTENTS
 
-1. Introduction
+   1. Introduction
+   2. API
+   3. User-space utilities
+
+
+Introduction
+============
 
 Digital signature verification API provides a method to verify digital signature.
 Currently digital signatures are used by the IMA/EVM integrity protection subsystem.
@@ -17,25 +24,25 @@ GnuPG multi-precision integers (MPI) library. The kernel port provides
 memory allocation errors handling, has been refactored according to kernel
 coding style, and checkpatch.pl reported errors and warnings have been fixed.
 
-Public key and signature consist of header and MPIs.
-
-struct pubkey_hdr {
-	uint8_t		version;	/* key format version */
-	time_t		timestamp;	/* key made, always 0 for now */
-	uint8_t		algo;
-	uint8_t		nmpi;
-	char		mpi[0];
-} __packed;
-
-struct signature_hdr {
-	uint8_t		version;	/* signature format version */
-	time_t		timestamp;	/* signature made */
-	uint8_t		algo;
-	uint8_t		hash;
-	uint8_t		keyid[8];
-	uint8_t		nmpi;
-	char		mpi[0];
-} __packed;
+Public key and signature consist of header and MPIs::
+
+	struct pubkey_hdr {
+		uint8_t		version;	/* key format version */
+		time_t		timestamp;	/* key made, always 0 for now */
+		uint8_t		algo;
+		uint8_t		nmpi;
+		char		mpi[0];
+	} __packed;
+
+	struct signature_hdr {
+		uint8_t		version;	/* signature format version */
+		time_t		timestamp;	/* signature made */
+		uint8_t		algo;
+		uint8_t		hash;
+		uint8_t		keyid[8];
+		uint8_t		nmpi;
+		char		mpi[0];
+	} __packed;
 
 keyid equals to SHA1[12-19] over the total key content.
 Signature header is used as an input to generate a signature.
@@ -43,31 +50,33 @@ Such approach insures that key or signature header could not be changed.
 It protects timestamp from been changed and can be used for rollback
 protection.
 
-2. API
+API
+===
 
-API currently includes only 1 function:
+API currently includes only 1 function::
 
 	digsig_verify() - digital signature verification with public key
 
 
-/**
- * digsig_verify() - digital signature verification with public key
- * @keyring:	keyring to search key in
- * @sig:	digital signature
- * @sigen:	length of the signature
- * @data:	data
- * @datalen:	length of the data
- * @return:	0 on success, -EINVAL otherwise
- *
- * Verifies data integrity against digital signature.
- * Currently only RSA is supported.
- * Normally hash of the content is used as a data for this function.
- *
- */
-int digsig_verify(struct key *keyring, const char *sig, int siglen,
-						const char *data, int datalen);
-
-3. User-space utilities
+	/**
+	* digsig_verify() - digital signature verification with public key
+	* @keyring:	keyring to search key in
+	* @sig:	digital signature
+	* @sigen:	length of the signature
+	* @data:	data
+	* @datalen:	length of the data
+	* @return:	0 on success, -EINVAL otherwise
+	*
+	* Verifies data integrity against digital signature.
+	* Currently only RSA is supported.
+	* Normally hash of the content is used as a data for this function.
+	*
+	*/
+	int digsig_verify(struct key *keyring, const char *sig, int siglen,
+			  const char *data, int datalen);
+
+User-space utilities
+====================
 
 The signing and key management utilities evm-utils provide functionality
 to generate signatures, to load keys into the kernel keyring.
@@ -75,22 +84,18 @@ Keys can be in PEM or converted to the kernel format.
 When the key is added to the kernel keyring, the keyid defines the name
 of the key: 5D2B05FC633EE3E8 in the example bellow.
 
-Here is example output of the keyctl utility.
-
-$ keyctl show
-Session Keyring
-       -3 --alswrv      0     0  keyring: _ses
-603976250 --alswrv      0    -1   \_ keyring: _uid.0
-817777377 --alswrv      0     0       \_ user: kmk
-891974900 --alswrv      0     0       \_ encrypted: evm-key
-170323636 --alswrv      0     0       \_ keyring: _module
-548221616 --alswrv      0     0       \_ keyring: _ima
-128198054 --alswrv      0     0       \_ keyring: _evm
-
-$ keyctl list 128198054
-1 key in keyring:
-620789745: --alswrv     0     0 user: 5D2B05FC633EE3E8
-
-
-Dmitry Kasatkin
-06.10.2011
+Here is example output of the keyctl utility::
+
+	$ keyctl show
+	Session Keyring
+	-3 --alswrv      0     0  keyring: _ses
+	603976250 --alswrv      0    -1   \_ keyring: _uid.0
+	817777377 --alswrv      0     0       \_ user: kmk
+	891974900 --alswrv      0     0       \_ encrypted: evm-key
+	170323636 --alswrv      0     0       \_ keyring: _module
+	548221616 --alswrv      0     0       \_ keyring: _ima
+	128198054 --alswrv      0     0       \_ keyring: _evm
+
+	$ keyctl list 128198054
+	1 key in keyring:
+	620789745: --alswrv     0     0 user: 5D2B05FC633EE3E8
diff --git a/Documentation/driver-api/basics.rst b/Documentation/driver-api/basics.rst
index 472e7a664d13..ab82250c7727 100644
--- a/Documentation/driver-api/basics.rst
+++ b/Documentation/driver-api/basics.rst
@@ -106,9 +106,6 @@ Kernel utility functions
 .. kernel-doc:: kernel/sys.c
    :export:
 
-.. kernel-doc:: kernel/rcu/srcu.c
-   :export:
-
 .. kernel-doc:: kernel/rcu/tree.c
    :export:
 
diff --git a/Documentation/driver-api/i2c.rst b/Documentation/driver-api/i2c.rst
index 0bf86a445d01..7582c079d747 100644
--- a/Documentation/driver-api/i2c.rst
+++ b/Documentation/driver-api/i2c.rst
@@ -41,5 +41,8 @@ i2c_adapter devices which don't support those I2C operations.
 .. kernel-doc:: drivers/i2c/i2c-boardinfo.c
    :functions: i2c_register_board_info
 
-.. kernel-doc:: drivers/i2c/i2c-core.c
+.. kernel-doc:: drivers/i2c/i2c-core-base.c
+   :export:
+
+.. kernel-doc:: drivers/i2c/i2c-core-smbus.c
    :export:
diff --git a/Documentation/efi-stub.txt b/Documentation/efi-stub.txt
index e15746988261..41df801f9a50 100644
--- a/Documentation/efi-stub.txt
+++ b/Documentation/efi-stub.txt
@@ -1,5 +1,6 @@
-			  The EFI Boot Stub
-		     ---------------------------
+=================
+The EFI Boot Stub
+=================
 
 On the x86 and ARM platforms, a kernel zImage/bzImage can masquerade
 as a PE/COFF image, thereby convincing EFI firmware loaders to load
@@ -25,7 +26,8 @@ a certain sense it *IS* the boot loader.
 The EFI boot stub is enabled with the CONFIG_EFI_STUB kernel option.
 
 
-**** How to install bzImage.efi
+How to install bzImage.efi
+--------------------------
 
 The bzImage located in arch/x86/boot/bzImage must be copied to the EFI
 System Partition (ESP) and renamed with the extension ".efi". Without
@@ -37,14 +39,16 @@ may not need to be renamed. Similarly for arm64, arch/arm64/boot/Image
 should be copied but not necessarily renamed.
 
 
-**** Passing kernel parameters from the EFI shell
+Passing kernel parameters from the EFI shell
+--------------------------------------------
 
-Arguments to the kernel can be passed after bzImage.efi, e.g.
+Arguments to the kernel can be passed after bzImage.efi, e.g.::
 
 	fs0:> bzImage.efi console=ttyS0 root=/dev/sda4
 
 
-**** The "initrd=" option
+The "initrd=" option
+--------------------
 
 Like most boot loaders, the EFI stub allows the user to specify
 multiple initrd files using the "initrd=" option. This is the only EFI
@@ -54,9 +58,9 @@ kernel when it boots.
 The path to the initrd file must be an absolute path from the
 beginning of the ESP, relative path names do not work. Also, the path
 is an EFI-style path and directory elements must be separated with
-backslashes (\). For example, given the following directory layout,
+backslashes (\). For example, given the following directory layout::
 
-fs0:>
+  fs0:>
 	Kernels\
 			bzImage.efi
 			initrd-large.img
@@ -66,7 +70,7 @@ fs0:>
 			initrd-medium.img
 
 to boot with the initrd-large.img file if the current working
-directory is fs0:\Kernels, the following command must be used,
+directory is fs0:\Kernels, the following command must be used::
 
 	fs0:\Kernels> bzImage.efi initrd=\Kernels\initrd-large.img
 
@@ -76,7 +80,8 @@ which understands relative paths, whereas the rest of the command line
 is passed to bzImage.efi.
 
 
-**** The "dtb=" option
+The "dtb=" option
+-----------------
 
 For the ARM and arm64 architectures, we also need to be able to provide a
 device tree to the kernel. This is done with the "dtb=" command line option,
diff --git a/Documentation/eisa.txt b/Documentation/eisa.txt
index a55e4910924e..2806e5544e43 100644
--- a/Documentation/eisa.txt
+++ b/Documentation/eisa.txt
@@ -1,4 +1,8 @@
-EISA bus support (Marc Zyngier <maz@wild-wind.fr.eu.org>)
+================
+EISA bus support
+================
+
+:Author: Marc Zyngier <maz@wild-wind.fr.eu.org>
 
 This document groups random notes about porting EISA drivers to the
 new EISA/sysfs API.
@@ -14,168 +18,189 @@ detection code is generally also used to probe ISA cards). Moreover,
 most EISA drivers are among the oldest Linux drivers so, as you can
 imagine, some dust has settled here over the years.
 
-The EISA infrastructure is made up of three parts :
+The EISA infrastructure is made up of three parts:
 
     - The bus code implements most of the generic code. It is shared
-    among all the architectures that the EISA code runs on. It
-    implements bus probing (detecting EISA cards available on the bus),
-    allocates I/O resources, allows fancy naming through sysfs, and
-    offers interfaces for driver to register.
+      among all the architectures that the EISA code runs on. It
+      implements bus probing (detecting EISA cards available on the bus),
+      allocates I/O resources, allows fancy naming through sysfs, and
+      offers interfaces for driver to register.
 
     - The bus root driver implements the glue between the bus hardware
-    and the generic bus code. It is responsible for discovering the
-    device implementing the bus, and setting it up to be latter probed
-    by the bus code. This can go from something as simple as reserving
-    an I/O region on x86, to the rather more complex, like the hppa
-    EISA code. This is the part to implement in order to have EISA
-    running on an "new" platform.
+      and the generic bus code. It is responsible for discovering the
+      device implementing the bus, and setting it up to be latter probed
+      by the bus code. This can go from something as simple as reserving
+      an I/O region on x86, to the rather more complex, like the hppa
+      EISA code. This is the part to implement in order to have EISA
+      running on an "new" platform.
 
     - The driver offers the bus a list of devices that it manages, and
-    implements the necessary callbacks to probe and release devices
-    whenever told to.
+      implements the necessary callbacks to probe and release devices
+      whenever told to.
 
 Every function/structure below lives in <linux/eisa.h>, which depends
 heavily on <linux/device.h>.
 
-** Bus root driver :
+Bus root driver
+===============
+
+::
 
-int eisa_root_register (struct eisa_root_device *root);
+	int eisa_root_register (struct eisa_root_device *root);
 
 The eisa_root_register function is used to declare a device as the
 root of an EISA bus. The eisa_root_device structure holds a reference
-to this device, as well as some parameters for probing purposes.
-
-struct eisa_root_device {
-	struct device   *dev;	 /* Pointer to bridge device */
-	struct resource *res;
-	unsigned long    bus_base_addr;
-	int		 slots;  /* Max slot number */
-	int		 force_probe; /* Probe even when no slot 0 */
-	u64		 dma_mask; /* from bridge device */
-	int              bus_nr; /* Set by eisa_root_register */
-	struct resource  eisa_root_res;	/* ditto */
-};
-
-node          : used for eisa_root_register internal purpose
-dev           : pointer to the root device
-res           : root device I/O resource
-bus_base_addr : slot 0 address on this bus
-slots	      : max slot number to probe
-force_probe   : Probe even when slot 0 is empty (no EISA mainboard)
-dma_mask      : Default DMA mask. Usually the bridge device dma_mask.
-bus_nr	      : unique bus id, set by eisa_root_register
-
-** Driver :
-
-int eisa_driver_register (struct eisa_driver *edrv);
-void eisa_driver_unregister (struct eisa_driver *edrv);
+to this device, as well as some parameters for probing purposes::
+
+	struct eisa_root_device {
+		struct device   *dev;	 /* Pointer to bridge device */
+		struct resource *res;
+		unsigned long    bus_base_addr;
+		int		 slots;  /* Max slot number */
+		int		 force_probe; /* Probe even when no slot 0 */
+		u64		 dma_mask; /* from bridge device */
+		int              bus_nr; /* Set by eisa_root_register */
+		struct resource  eisa_root_res;	/* ditto */
+	};
+
+============= ======================================================
+node          used for eisa_root_register internal purpose
+dev           pointer to the root device
+res           root device I/O resource
+bus_base_addr slot 0 address on this bus
+slots	      max slot number to probe
+force_probe   Probe even when slot 0 is empty (no EISA mainboard)
+dma_mask      Default DMA mask. Usually the bridge device dma_mask.
+bus_nr	      unique bus id, set by eisa_root_register
+============= ======================================================
+
+Driver
+======
+
+::
+
+	int eisa_driver_register (struct eisa_driver *edrv);
+	void eisa_driver_unregister (struct eisa_driver *edrv);
 
 Clear enough ?
 
-struct eisa_device_id {
-        char sig[EISA_SIG_LEN];
-	unsigned long driver_data;
-};
-
-struct eisa_driver {
-        const struct eisa_device_id *id_table;
-        struct device_driver         driver;
-};
-
-id_table	: an array of NULL terminated EISA id strings,
-		  followed by an empty string. Each string can
-		  optionally be paired with a driver-dependent value
-		  (driver_data).
-
-driver		: a generic driver, such as described in
-		  Documentation/driver-model/driver.txt. Only .name,
-		  .probe and .remove members are mandatory.
-
-An example is the 3c59x driver :
-
-static struct eisa_device_id vortex_eisa_ids[] = {
-	{ "TCM5920", EISA_3C592_OFFSET },
-	{ "TCM5970", EISA_3C597_OFFSET },
-	{ "" }
-};
-
-static struct eisa_driver vortex_eisa_driver = {
-	.id_table = vortex_eisa_ids,
-	.driver   = {
-		.name    = "3c59x",
-		.probe   = vortex_eisa_probe,
-		.remove  = vortex_eisa_remove
-	}
-};
-
-** Device :
+::
+
+	struct eisa_device_id {
+		char sig[EISA_SIG_LEN];
+		unsigned long driver_data;
+	};
+
+	struct eisa_driver {
+		const struct eisa_device_id *id_table;
+		struct device_driver         driver;
+	};
+
+=============== ====================================================
+id_table	an array of NULL terminated EISA id strings,
+		followed by an empty string. Each string can
+		optionally be paired with a driver-dependent value
+		(driver_data).
+
+driver		a generic driver, such as described in
+		Documentation/driver-model/driver.txt. Only .name,
+		.probe and .remove members are mandatory.
+=============== ====================================================
+
+An example is the 3c59x driver::
+
+	static struct eisa_device_id vortex_eisa_ids[] = {
+		{ "TCM5920", EISA_3C592_OFFSET },
+		{ "TCM5970", EISA_3C597_OFFSET },
+		{ "" }
+	};
+
+	static struct eisa_driver vortex_eisa_driver = {
+		.id_table = vortex_eisa_ids,
+		.driver   = {
+			.name    = "3c59x",
+			.probe   = vortex_eisa_probe,
+			.remove  = vortex_eisa_remove
+		}
+	};
+
+Device
+======
 
 The sysfs framework calls .probe and .remove functions upon device
 discovery and removal (note that the .remove function is only called
 when driver is built as a module).
 
 Both functions are passed a pointer to a 'struct device', which is
-encapsulated in a 'struct eisa_device' described as follows :
-
-struct eisa_device {
-        struct eisa_device_id id;
-        int                   slot;
-	int                   state;
-	unsigned long         base_addr;
-	struct resource       res[EISA_MAX_RESOURCES];
-	u64                   dma_mask;
-        struct device         dev; /* generic device */
-};
-
-id	: EISA id, as read from device. id.driver_data is set from the
-	  matching driver EISA id.
-slot	: slot number which the device was detected on
-state   : set of flags indicating the state of the device. Current
-	  flags are EISA_CONFIG_ENABLED and EISA_CONFIG_FORCED.
-res	: set of four 256 bytes I/O regions allocated to this device
-dma_mask: DMA mask set from the parent device.
-dev	: generic device (see Documentation/driver-model/device.txt)
+encapsulated in a 'struct eisa_device' described as follows::
+
+	struct eisa_device {
+		struct eisa_device_id id;
+		int                   slot;
+		int                   state;
+		unsigned long         base_addr;
+		struct resource       res[EISA_MAX_RESOURCES];
+		u64                   dma_mask;
+		struct device         dev; /* generic device */
+	};
+
+======== ============================================================
+id	 EISA id, as read from device. id.driver_data is set from the
+	 matching driver EISA id.
+slot	 slot number which the device was detected on
+state    set of flags indicating the state of the device. Current
+	 flags are EISA_CONFIG_ENABLED and EISA_CONFIG_FORCED.
+res	 set of four 256 bytes I/O regions allocated to this device
+dma_mask DMA mask set from the parent device.
+dev	 generic device (see Documentation/driver-model/device.txt)
+======== ============================================================
 
 You can get the 'struct eisa_device' from 'struct device' using the
 'to_eisa_device' macro.
 
-** Misc stuff :
+Misc stuff
+==========
+
+::
 
-void eisa_set_drvdata (struct eisa_device *edev, void *data);
+	void eisa_set_drvdata (struct eisa_device *edev, void *data);
 
 Stores data into the device's driver_data area.
 
-void *eisa_get_drvdata (struct eisa_device *edev):
+::
+
+	void *eisa_get_drvdata (struct eisa_device *edev):
 
 Gets the pointer previously stored into the device's driver_data area.
 
-int eisa_get_region_index (void *addr);
+::
+
+	int eisa_get_region_index (void *addr);
 
 Returns the region number (0 <= x < EISA_MAX_RESOURCES) of a given
 address.
 
-** Kernel parameters :
+Kernel parameters
+=================
 
-eisa_bus.enable_dev :
+eisa_bus.enable_dev
+	A comma-separated list of slots to be enabled, even if the firmware
+	set the card as disabled. The driver must be able to properly
+	initialize the device in such conditions.
 
-A comma-separated list of slots to be enabled, even if the firmware
-set the card as disabled. The driver must be able to properly
-initialize the device in such conditions.
+eisa_bus.disable_dev
+	A comma-separated list of slots to be enabled, even if the firmware
+	set the card as enabled. The driver won't be called to handle this
+	device.
 
-eisa_bus.disable_dev :
+virtual_root.force_probe
+	Force the probing code to probe EISA slots even when it cannot find an
+	EISA compliant mainboard (nothing appears on slot 0). Defaults to 0
+	(don't force), and set to 1 (force probing) when either
+	CONFIG_ALPHA_JENSEN or CONFIG_EISA_VLB_PRIMING are set.
 
-A comma-separated list of slots to be enabled, even if the firmware
-set the card as enabled. The driver won't be called to handle this
-device.
-
-virtual_root.force_probe :
-
-Force the probing code to probe EISA slots even when it cannot find an
-EISA compliant mainboard (nothing appears on slot 0). Defaults to 0
-(don't force), and set to 1 (force probing) when either
-CONFIG_ALPHA_JENSEN or CONFIG_EISA_VLB_PRIMING are set.
-
-** Random notes :
+Random notes
+============
 
 Converting an EISA driver to the new API mostly involves *deleting*
 code (since probing is now in the core EISA code). Unfortunately, most
@@ -194,9 +219,11 @@ routine.
 For example, switching your favorite EISA SCSI card to the "hotplug"
 model is "the right thing"(tm).
 
-** Thanks :
+Thanks
+======
+
+I'd like to thank the following people for their help:
 
-I'd like to thank the following people for their help :
 - Xavier Benigni for lending me a wonderful Alpha Jensen,
 - James Bottomley, Jeff Garzik for getting this stuff into the kernel,
 - Andries Brouwer for contributing numerous EISA ids,
diff --git a/Documentation/fault-injection/fault-injection.txt b/Documentation/fault-injection/fault-injection.txt
index 415484f3d59a..918972babcd8 100644
--- a/Documentation/fault-injection/fault-injection.txt
+++ b/Documentation/fault-injection/fault-injection.txt
@@ -134,6 +134,23 @@ use the boot option:
 	fail_futex=
 	mmc_core.fail_request=<interval>,<probability>,<space>,<times>
 
+o proc entries
+
+- /proc/<pid>/fail-nth:
+- /proc/self/task/<tid>/fail-nth:
+
+	Write to this file of integer N makes N-th call in the task fail.
+	Read from this file returns a integer value. A value of '0' indicates
+	that the fault setup with a previous write to this file was injected.
+	A positive integer N indicates that the fault wasn't yet injected.
+	Note that this file enables all types of faults (slab, futex, etc).
+	This setting takes precedence over all other generic debugfs settings
+	like probability, interval, times, etc. But per-capability settings
+	(e.g. fail_futex/ignore-private) take precedence over it.
+
+	This feature is intended for systematic testing of faults in a single
+	system call. See an example below.
+
 How to add new fault injection capability
 -----------------------------------------
 
@@ -278,3 +295,65 @@ allocation failure.
 	# env FAILCMD_TYPE=fail_page_alloc \
 		./tools/testing/fault-injection/failcmd.sh --times=100 \
                 -- make -C tools/testing/selftests/ run_tests
+
+Systematic faults using fail-nth
+---------------------------------
+
+The following code systematically faults 0-th, 1-st, 2-nd and so on
+capabilities in the socketpair() system call.
+
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <sys/socket.h>
+#include <sys/syscall.h>
+#include <fcntl.h>
+#include <unistd.h>
+#include <string.h>
+#include <stdlib.h>
+#include <stdio.h>
+#include <errno.h>
+
+int main()
+{
+	int i, err, res, fail_nth, fds[2];
+	char buf[128];
+
+	system("echo N > /sys/kernel/debug/failslab/ignore-gfp-wait");
+	sprintf(buf, "/proc/self/task/%ld/fail-nth", syscall(SYS_gettid));
+	fail_nth = open(buf, O_RDWR);
+	for (i = 1;; i++) {
+		sprintf(buf, "%d", i);
+		write(fail_nth, buf, strlen(buf));
+		res = socketpair(AF_LOCAL, SOCK_STREAM, 0, fds);
+		err = errno;
+		pread(fail_nth, buf, sizeof(buf), 0);
+		if (res == 0) {
+			close(fds[0]);
+			close(fds[1]);
+		}
+		printf("%d-th fault %c: res=%d/%d\n", i, atoi(buf) ? 'N' : 'Y',
+			res, err);
+		if (atoi(buf))
+			break;
+	}
+	return 0;
+}
+
+An example output:
+
+1-th fault Y: res=-1/23
+2-th fault Y: res=-1/23
+3-th fault Y: res=-1/12
+4-th fault Y: res=-1/12
+5-th fault Y: res=-1/23
+6-th fault Y: res=-1/23
+7-th fault Y: res=-1/23
+8-th fault Y: res=-1/12
+9-th fault Y: res=-1/12
+10-th fault Y: res=-1/12
+11-th fault Y: res=-1/12
+12-th fault Y: res=-1/12
+13-th fault Y: res=-1/12
+14-th fault Y: res=-1/12
+15-th fault Y: res=-1/12
+16-th fault N: res=0/12
diff --git a/Documentation/fb/efifb.txt b/Documentation/fb/efifb.txt
index a59916c29b33..1a85c1bdaf38 100644
--- a/Documentation/fb/efifb.txt
+++ b/Documentation/fb/efifb.txt
@@ -27,5 +27,11 @@ You have to add the following kernel parameters in your elilo.conf:
 	Macbook Pro 17", iMac 20" :
 		video=efifb:i20
 
+Accepted options:
+
+nowc	Don't map the framebuffer write combined. This can be used
+	to workaround side-effects and slowdowns on other CPU cores
+	when large amounts of console data are written.
+
 --
 Edgar Hucek <gimli@dark-green.com>
diff --git a/Documentation/filesystems/overlayfs.txt b/Documentation/filesystems/overlayfs.txt
index c9e884b52698..36f528a7fdd6 100644
--- a/Documentation/filesystems/overlayfs.txt
+++ b/Documentation/filesystems/overlayfs.txt
@@ -201,6 +201,40 @@ rightmost one and going left.  In the above example lower1 will be the
 top, lower2 the middle and lower3 the bottom layer.
 
 
+Sharing and copying layers
+--------------------------
+
+Lower layers may be shared among several overlay mounts and that is indeed
+a very common practice.  An overlay mount may use the same lower layer
+path as another overlay mount and it may use a lower layer path that is
+beneath or above the path of another overlay lower layer path.
+
+Using an upper layer path and/or a workdir path that are already used by
+another overlay mount is not allowed and will fail with EBUSY.  Using
+partially overlapping paths is not allowed but will not fail with EBUSY.
+
+Mounting an overlay using an upper layer path, where the upper layer path
+was previously used by another mounted overlay in combination with a
+different lower layer path, is allowed, unless the "inodes index" feature
+is enabled.
+
+With the "inodes index" feature, on the first time mount, an NFS file
+handle of the lower layer root directory, along with the UUID of the lower
+filesystem, are encoded and stored in the "trusted.overlay.origin" extended
+attribute on the upper layer root directory.  On subsequent mount attempts,
+the lower root directory file handle and lower filesystem UUID are compared
+to the stored origin in upper root directory.  On failure to verify the
+lower root origin, mount will fail with ESTALE.  An overlayfs mount with
+"inodes index" enabled will fail with EOPNOTSUPP if the lower filesystem
+does not support NFS export, lower filesystem does not have a valid UUID or
+if the upper filesystem does not support extended attributes.
+
+It is quite a common practice to copy overlay layers to a different
+directory tree on the same or different underlying filesystem, and even
+to a different machine.  With the "inodes index" feature, trying to mount
+the copied layers will fail the verification of the lower root file handle.
+
+
 Non-standard behavior
 ---------------------
 
diff --git a/Documentation/filesystems/proc.txt b/Documentation/filesystems/proc.txt
index 4cddbce85ac9..adba21b5ada7 100644
--- a/Documentation/filesystems/proc.txt
+++ b/Documentation/filesystems/proc.txt
@@ -1786,12 +1786,16 @@ pair provide additional information particular to the objects they represent.
 	pos:	0
 	flags:	02
 	mnt_id:	9
-	tfd:        5 events:       1d data: ffffffffffffffff
+	tfd:        5 events:       1d data: ffffffffffffffff pos:0 ino:61af sdev:7
 
 	where 'tfd' is a target file descriptor number in decimal form,
 	'events' is events mask being watched and the 'data' is data
 	associated with a target [see epoll(7) for more details].
 
+	The 'pos' is current offset of the target file in decimal form
+	[see lseek(2)], 'ino' and 'sdev' are inode and device numbers
+	where target file resides, all in hex format.
+
 	Fsnotify files
 	~~~~~~~~~~~~~~
 	For inotify files the format is the following
diff --git a/Documentation/filesystems/vfs.txt b/Documentation/filesystems/vfs.txt
index 48c9faa73a76..73e7d91f03dc 100644
--- a/Documentation/filesystems/vfs.txt
+++ b/Documentation/filesystems/vfs.txt
@@ -1225,12 +1225,6 @@ The underlying reason for the above rules is to make sure, that a
 mount can be accurately replicated (e.g. umounting and mounting again)
 based on the information found in /proc/mounts.
 
-A simple method of saving options at mount/remount time and showing
-them is provided with the save_mount_options() and
-generic_show_options() helper functions.  Please note, that using
-these may have drawbacks.  For more info see header comments for these
-functions in fs/namespace.c.
-
 Resources
 =========
 
diff --git a/Documentation/flexible-arrays.txt b/Documentation/flexible-arrays.txt
index df904aec9904..a0f2989dd804 100644
--- a/Documentation/flexible-arrays.txt
+++ b/Documentation/flexible-arrays.txt
@@ -1,6 +1,9 @@
+===================================
 Using flexible arrays in the kernel
-Last updated for 2.6.32
-Jonathan Corbet <corbet@lwn.net>
+===================================
+
+:Updated: Last updated for 2.6.32
+:Author: Jonathan Corbet <corbet@lwn.net>
 
 Large contiguous memory allocations can be unreliable in the Linux kernel.
 Kernel programmers will sometimes respond to this problem by allocating
@@ -26,7 +29,7 @@ operation.  It's also worth noting that flexible arrays do no internal
 locking at all; if concurrent access to an array is possible, then the
 caller must arrange for appropriate mutual exclusion.
 
-The creation of a flexible array is done with:
+The creation of a flexible array is done with::
 
     #include <linux/flex_array.h>
 
@@ -40,14 +43,14 @@ argument is passed directly to the internal memory allocation calls.  With
 the current code, using flags to ask for high memory is likely to lead to
 notably unpleasant side effects.
 
-It is also possible to define flexible arrays at compile time with:
+It is also possible to define flexible arrays at compile time with::
 
     DEFINE_FLEX_ARRAY(name, element_size, total);
 
 This macro will result in a definition of an array with the given name; the
 element size and total will be checked for validity at compile time.
 
-Storing data into a flexible array is accomplished with a call to:
+Storing data into a flexible array is accomplished with a call to::
 
     int flex_array_put(struct flex_array *array, unsigned int element_nr,
     		       void *src, gfp_t flags);
@@ -63,7 +66,7 @@ running in some sort of atomic context; in this situation, sleeping in the
 memory allocator would be a bad thing.  That can be avoided by using
 GFP_ATOMIC for the flags value, but, often, there is a better way.  The
 trick is to ensure that any needed memory allocations are done before
-entering atomic context, using:
+entering atomic context, using::
 
     int flex_array_prealloc(struct flex_array *array, unsigned int start,
 			    unsigned int nr_elements, gfp_t flags);
@@ -73,7 +76,7 @@ defined by start and nr_elements has been allocated.  Thereafter, a
 flex_array_put() call on an element in that range is guaranteed not to
 block.
 
-Getting data back out of the array is done with:
+Getting data back out of the array is done with::
 
     void *flex_array_get(struct flex_array *fa, unsigned int element_nr);
 
@@ -89,7 +92,7 @@ involving that number probably result from use of unstored array entries.
 Note that, if array elements are allocated with __GFP_ZERO, they will be
 initialized to zero and this poisoning will not happen.
 
-Individual elements in the array can be cleared with:
+Individual elements in the array can be cleared with::
 
     int flex_array_clear(struct flex_array *array, unsigned int element_nr);
 
@@ -97,7 +100,7 @@ This function will set the given element to FLEX_ARRAY_FREE and return
 zero.  If storage for the indicated element is not allocated for the array,
 flex_array_clear() will return -EINVAL instead.  Note that clearing an
 element does not release the storage associated with it; to reduce the
-allocated size of an array, call:
+allocated size of an array, call::
 
     int flex_array_shrink(struct flex_array *array);
 
@@ -106,12 +109,12 @@ This function works by scanning the array for pages containing nothing but
 FLEX_ARRAY_FREE bytes, so (1) it can be expensive, and (2) it will not work
 if the array's pages are allocated with __GFP_ZERO.
 
-It is possible to remove all elements of an array with a call to:
+It is possible to remove all elements of an array with a call to::
 
     void flex_array_free_parts(struct flex_array *array);
 
 This call frees all elements, but leaves the array itself in place.
-Freeing the entire array is done with:
+Freeing the entire array is done with::
 
     void flex_array_free(struct flex_array *array);
 
diff --git a/Documentation/futex-requeue-pi.txt b/Documentation/futex-requeue-pi.txt
index 77b36f59d16b..14ab5787b9a7 100644
--- a/Documentation/futex-requeue-pi.txt
+++ b/Documentation/futex-requeue-pi.txt
@@ -1,5 +1,6 @@
+================
 Futex Requeue PI
-----------------
+================
 
 Requeueing of tasks from a non-PI futex to a PI futex requires
 special handling in order to ensure the underlying rt_mutex is never
@@ -20,28 +21,28 @@ implementation would wake the highest-priority waiter, and leave the
 rest to the natural wakeup inherent in unlocking the mutex
 associated with the condvar.
 
-Consider the simplified glibc calls:
-
-/* caller must lock mutex */
-pthread_cond_wait(cond, mutex)
-{
-	lock(cond->__data.__lock);
-	unlock(mutex);
-	do {
-	   unlock(cond->__data.__lock);
-	   futex_wait(cond->__data.__futex);
-	   lock(cond->__data.__lock);
-	} while(...)
-	unlock(cond->__data.__lock);
-	lock(mutex);
-}
-
-pthread_cond_broadcast(cond)
-{
-	lock(cond->__data.__lock);
-	unlock(cond->__data.__lock);
-	futex_requeue(cond->data.__futex, cond->mutex);
-}
+Consider the simplified glibc calls::
+
+	/* caller must lock mutex */
+	pthread_cond_wait(cond, mutex)
+	{
+		lock(cond->__data.__lock);
+		unlock(mutex);
+		do {
+		unlock(cond->__data.__lock);
+		futex_wait(cond->__data.__futex);
+		lock(cond->__data.__lock);
+		} while(...)
+		unlock(cond->__data.__lock);
+		lock(mutex);
+	}
+
+	pthread_cond_broadcast(cond)
+	{
+		lock(cond->__data.__lock);
+		unlock(cond->__data.__lock);
+		futex_requeue(cond->data.__futex, cond->mutex);
+	}
 
 Once pthread_cond_broadcast() requeues the tasks, the cond->mutex
 has waiters. Note that pthread_cond_wait() attempts to lock the
@@ -53,29 +54,29 @@ In order to support PI-aware pthread_condvar's, the kernel needs to
 be able to requeue tasks to PI futexes.  This support implies that
 upon a successful futex_wait system call, the caller would return to
 user space already holding the PI futex.  The glibc implementation
-would be modified as follows:
-
-
-/* caller must lock mutex */
-pthread_cond_wait_pi(cond, mutex)
-{
-	lock(cond->__data.__lock);
-	unlock(mutex);
-	do {
-	   unlock(cond->__data.__lock);
-	   futex_wait_requeue_pi(cond->__data.__futex);
-	   lock(cond->__data.__lock);
-	} while(...)
-	unlock(cond->__data.__lock);
-        /* the kernel acquired the mutex for us */
-}
-
-pthread_cond_broadcast_pi(cond)
-{
-	lock(cond->__data.__lock);
-	unlock(cond->__data.__lock);
-	futex_requeue_pi(cond->data.__futex, cond->mutex);
-}
+would be modified as follows::
+
+
+	/* caller must lock mutex */
+	pthread_cond_wait_pi(cond, mutex)
+	{
+		lock(cond->__data.__lock);
+		unlock(mutex);
+		do {
+		unlock(cond->__data.__lock);
+		futex_wait_requeue_pi(cond->__data.__futex);
+		lock(cond->__data.__lock);
+		} while(...)
+		unlock(cond->__data.__lock);
+		/* the kernel acquired the mutex for us */
+	}
+
+	pthread_cond_broadcast_pi(cond)
+	{
+		lock(cond->__data.__lock);
+		unlock(cond->__data.__lock);
+		futex_requeue_pi(cond->data.__futex, cond->mutex);
+	}
 
 The actual glibc implementation will likely test for PI and make the
 necessary changes inside the existing calls rather than creating new
diff --git a/Documentation/gcc-plugins.txt b/Documentation/gcc-plugins.txt
index 433eaefb4aa1..8502f24396fb 100644
--- a/Documentation/gcc-plugins.txt
+++ b/Documentation/gcc-plugins.txt
@@ -1,14 +1,15 @@
+=========================
 GCC plugin infrastructure
 =========================
 
 
-1. Introduction
-===============
+Introduction
+============
 
 GCC plugins are loadable modules that provide extra features to the
-compiler [1]. They are useful for runtime instrumentation and static analysis.
+compiler [1]_. They are useful for runtime instrumentation and static analysis.
 We can analyse, change and add further code during compilation via
-callbacks [2], GIMPLE [3], IPA [4] and RTL passes [5].
+callbacks [2]_, GIMPLE [3]_, IPA [4]_ and RTL passes [5]_.
 
 The GCC plugin infrastructure of the kernel supports all gcc versions from
 4.5 to 6.0, building out-of-tree modules, cross-compilation and building in a
@@ -21,56 +22,61 @@ and versions 4.8+ can only be compiled by a C++ compiler.
 Currently the GCC plugin infrastructure supports only the x86, arm, arm64 and
 powerpc architectures.
 
-This infrastructure was ported from grsecurity [6] and PaX [7].
+This infrastructure was ported from grsecurity [6]_ and PaX [7]_.
 
 --
-[1] https://gcc.gnu.org/onlinedocs/gccint/Plugins.html
-[2] https://gcc.gnu.org/onlinedocs/gccint/Plugin-API.html#Plugin-API
-[3] https://gcc.gnu.org/onlinedocs/gccint/GIMPLE.html
-[4] https://gcc.gnu.org/onlinedocs/gccint/IPA.html
-[5] https://gcc.gnu.org/onlinedocs/gccint/RTL.html
-[6] https://grsecurity.net/
-[7] https://pax.grsecurity.net/
 
+.. [1] https://gcc.gnu.org/onlinedocs/gccint/Plugins.html
+.. [2] https://gcc.gnu.org/onlinedocs/gccint/Plugin-API.html#Plugin-API
+.. [3] https://gcc.gnu.org/onlinedocs/gccint/GIMPLE.html
+.. [4] https://gcc.gnu.org/onlinedocs/gccint/IPA.html
+.. [5] https://gcc.gnu.org/onlinedocs/gccint/RTL.html
+.. [6] https://grsecurity.net/
+.. [7] https://pax.grsecurity.net/
+
+
+Files
+=====
 
-2. Files
-========
+**$(src)/scripts/gcc-plugins**
 
-$(src)/scripts/gcc-plugins
 	This is the directory of the GCC plugins.
 
-$(src)/scripts/gcc-plugins/gcc-common.h
+**$(src)/scripts/gcc-plugins/gcc-common.h**
+
 	This is a compatibility header for GCC plugins.
 	It should be always included instead of individual gcc headers.
 
-$(src)/scripts/gcc-plugin.sh
+**$(src)/scripts/gcc-plugin.sh**
+
 	This script checks the availability of the included headers in
 	gcc-common.h and chooses the proper host compiler to build the plugins
 	(gcc-4.7 can be built by either gcc or g++).
 
-$(src)/scripts/gcc-plugins/gcc-generate-gimple-pass.h
-$(src)/scripts/gcc-plugins/gcc-generate-ipa-pass.h
-$(src)/scripts/gcc-plugins/gcc-generate-simple_ipa-pass.h
-$(src)/scripts/gcc-plugins/gcc-generate-rtl-pass.h
+**$(src)/scripts/gcc-plugins/gcc-generate-gimple-pass.h,
+$(src)/scripts/gcc-plugins/gcc-generate-ipa-pass.h,
+$(src)/scripts/gcc-plugins/gcc-generate-simple_ipa-pass.h,
+$(src)/scripts/gcc-plugins/gcc-generate-rtl-pass.h**
+
 	These headers automatically generate the registration structures for
 	GIMPLE, SIMPLE_IPA, IPA and RTL passes. They support all gcc versions
 	from 4.5 to 6.0.
 	They should be preferred to creating the structures by hand.
 
 
-3. Usage
-========
+Usage
+=====
 
 You must install the gcc plugin headers for your gcc version,
-e.g., on Ubuntu for gcc-4.9:
+e.g., on Ubuntu for gcc-4.9::
 
 	apt-get install gcc-4.9-plugin-dev
 
-Enable a GCC plugin based feature in the kernel config:
+Enable a GCC plugin based feature in the kernel config::
 
 	CONFIG_GCC_PLUGIN_CYC_COMPLEXITY = y
 
-To compile only the plugin(s):
+To compile only the plugin(s)::
 
 	make gcc-plugins
 
diff --git a/Documentation/gpio/gpio-legacy.txt b/Documentation/gpio/gpio-legacy.txt
index b34fd94f7089..5eacc147ea87 100644
--- a/Documentation/gpio/gpio-legacy.txt
+++ b/Documentation/gpio/gpio-legacy.txt
@@ -459,7 +459,7 @@ pin controller?
 
 This is done by registering "ranges" of pins, which are essentially
 cross-reference tables. These are described in
-Documentation/pinctrl.txt
+Documentation/driver-api/pinctl.rst
 
 While the pin allocation is totally managed by the pinctrl subsystem,
 gpio (under gpiolib) is still maintained by gpio drivers. It may happen
diff --git a/Documentation/highuid.txt b/Documentation/highuid.txt
index 6bad6f1d1cac..6ee70465c0ea 100644
--- a/Documentation/highuid.txt
+++ b/Documentation/highuid.txt
@@ -1,4 +1,9 @@
-Notes on the change from 16-bit UIDs to 32-bit UIDs:
+===================================================
+Notes on the change from 16-bit UIDs to 32-bit UIDs
+===================================================
+
+:Author: Chris Wing <wingc@umich.edu>
+:Last updated: January 11, 2000
 
 - kernel code MUST take into account __kernel_uid_t and __kernel_uid32_t
   when communicating between user and kernel space in an ioctl or data
@@ -28,30 +33,34 @@ What's left to be done for 32-bit UIDs on all Linux architectures:
   uses the 32-bit UID system calls properly otherwise.
 
   This affects at least:
-	iBCS on Intel
 
-	sparc32 emulation on sparc64
-	(need to support whatever new 32-bit UID system calls are added to
-	sparc32)
+	- iBCS on Intel
+
+	- sparc32 emulation on sparc64
+	  (need to support whatever new 32-bit UID system calls are added to
+	  sparc32)
 
 - Validate that all filesystems behave properly.
 
   At present, 32-bit UIDs _should_ work for:
-	ext2
-	ufs
-	isofs
-	nfs
-	coda
-	udf
+
+	- ext2
+	- ufs
+	- isofs
+	- nfs
+	- coda
+	- udf
 
   Ioctl() fixups have been made for:
-	ncpfs
-	smbfs
+
+	- ncpfs
+	- smbfs
 
   Filesystems with simple fixups to prevent 16-bit UID wraparound:
-	minix
-	sysv
-	qnx4
+
+	- minix
+	- sysv
+	- qnx4
 
   Other filesystems have not been checked yet.
 
@@ -69,9 +78,3 @@ What's left to be done for 32-bit UIDs on all Linux architectures:
 - make sure that the UID mapping feature of AX25 networking works properly
   (it should be safe because it's always used a 32-bit integer to
   communicate between user and kernel)
-
-
-Chris Wing
-wingc@umich.edu
-
-last updated: January 11, 2000
diff --git a/Documentation/hw_random.txt b/Documentation/hw_random.txt
index fce1634907d0..121de96e395e 100644
--- a/Documentation/hw_random.txt
+++ b/Documentation/hw_random.txt
@@ -1,90 +1,105 @@
-Introduction:
-
-	The hw_random framework is software that makes use of a
-	special hardware feature on your CPU or motherboard,
-	a Random Number Generator (RNG).  The software has two parts:
-	a core providing the /dev/hwrng character device and its
-	sysfs support, plus a hardware-specific driver that plugs
-	into that core.
-
-	To make the most effective use of these mechanisms, you
-	should download the support software as well.  Download the
-	latest version of the "rng-tools" package from the
-	hw_random driver's official Web site:
-
-		http://sourceforge.net/projects/gkernel/
-
-	Those tools use /dev/hwrng to fill the kernel entropy pool,
-	which is used internally and exported by the /dev/urandom and
-	/dev/random special files.
-
-Theory of operation:
-
-	CHARACTER DEVICE.  Using the standard open()
-	and read() system calls, you can read random data from
-	the hardware RNG device.  This data is NOT CHECKED by any
-	fitness tests, and could potentially be bogus (if the
-	hardware is faulty or has been tampered with).  Data is only
-	output if the hardware "has-data" flag is set, but nevertheless
-	a security-conscious person would run fitness tests on the
-	data before assuming it is truly random.
-
-	The rng-tools package uses such tests in "rngd", and lets you
-	run them by hand with a "rngtest" utility.
-
-	/dev/hwrng is char device major 10, minor 183.
-
-	CLASS DEVICE.  There is a /sys/class/misc/hw_random node with
-	two unique attributes, "rng_available" and "rng_current".  The
-	"rng_available" attribute lists the hardware-specific drivers
-	available, while "rng_current" lists the one which is currently
-	connected to /dev/hwrng.  If your system has more than one
-	RNG available, you may change the one used by writing a name from
-	the list in "rng_available" into "rng_current".
+==========================================================
+Linux support for random number generator in i8xx chipsets
+==========================================================
+
+Introduction
+============
+
+The hw_random framework is software that makes use of a
+special hardware feature on your CPU or motherboard,
+a Random Number Generator (RNG).  The software has two parts:
+a core providing the /dev/hwrng character device and its
+sysfs support, plus a hardware-specific driver that plugs
+into that core.
+
+To make the most effective use of these mechanisms, you
+should download the support software as well.  Download the
+latest version of the "rng-tools" package from the
+hw_random driver's official Web site:
+
+	http://sourceforge.net/projects/gkernel/
+
+Those tools use /dev/hwrng to fill the kernel entropy pool,
+which is used internally and exported by the /dev/urandom and
+/dev/random special files.
+
+Theory of operation
+===================
+
+CHARACTER DEVICE.  Using the standard open()
+and read() system calls, you can read random data from
+the hardware RNG device.  This data is NOT CHECKED by any
+fitness tests, and could potentially be bogus (if the
+hardware is faulty or has been tampered with).  Data is only
+output if the hardware "has-data" flag is set, but nevertheless
+a security-conscious person would run fitness tests on the
+data before assuming it is truly random.
+
+The rng-tools package uses such tests in "rngd", and lets you
+run them by hand with a "rngtest" utility.
+
+/dev/hwrng is char device major 10, minor 183.
+
+CLASS DEVICE.  There is a /sys/class/misc/hw_random node with
+two unique attributes, "rng_available" and "rng_current".  The
+"rng_available" attribute lists the hardware-specific drivers
+available, while "rng_current" lists the one which is currently
+connected to /dev/hwrng.  If your system has more than one
+RNG available, you may change the one used by writing a name from
+the list in "rng_available" into "rng_current".
 
 ==========================================================================
 
-	Hardware driver for Intel/AMD/VIA Random Number Generators (RNG)
-	Copyright 2000,2001 Jeff Garzik <jgarzik@pobox.com>
-	Copyright 2000,2001 Philipp Rumpf <prumpf@mandrakesoft.com>
 
+Hardware driver for Intel/AMD/VIA Random Number Generators (RNG)
+	- Copyright 2000,2001 Jeff Garzik <jgarzik@pobox.com>
+	- Copyright 2000,2001 Philipp Rumpf <prumpf@mandrakesoft.com>
 
-About the Intel RNG hardware, from the firmware hub datasheet:
 
-	The Firmware Hub integrates a Random Number Generator (RNG)
-	using thermal noise generated from inherently random quantum
-	mechanical properties of silicon. When not generating new random
-	bits the RNG circuitry will enter a low power state. Intel will
-	provide a binary software driver to give third party software
-	access to our RNG for use as a security feature. At this time,
-	the RNG is only to be used with a system in an OS-present state.
+About the Intel RNG hardware, from the firmware hub datasheet
+=============================================================
 
-Intel RNG Driver notes:
+The Firmware Hub integrates a Random Number Generator (RNG)
+using thermal noise generated from inherently random quantum
+mechanical properties of silicon. When not generating new random
+bits the RNG circuitry will enter a low power state. Intel will
+provide a binary software driver to give third party software
+access to our RNG for use as a security feature. At this time,
+the RNG is only to be used with a system in an OS-present state.
 
-	* FIXME: support poll(2)
+Intel RNG Driver notes
+======================
 
-	NOTE: request_mem_region was removed, for three reasons:
-	1) Only one RNG is supported by this driver, 2) The location
-	used by the RNG is a fixed location in MMIO-addressable memory,
+FIXME: support poll(2)
+
+.. note::
+
+	request_mem_region was removed, for three reasons:
+
+	1) Only one RNG is supported by this driver;
+	2) The location used by the RNG is a fixed location in
+	   MMIO-addressable memory;
 	3) users with properly working BIOS e820 handling will always
-	have the region in which the RNG is located reserved, so
-	request_mem_region calls always fail for proper setups.
-	However, for people who use mem=XX, BIOS e820 information is
-	-not- in /proc/iomem, and request_mem_region(RNG_ADDR) can
-	succeed.
+	   have the region in which the RNG is located reserved, so
+	   request_mem_region calls always fail for proper setups.
+	   However, for people who use mem=XX, BIOS e820 information is
+	   **not** in /proc/iomem, and request_mem_region(RNG_ADDR) can
+	   succeed.
 
-Driver details:
+Driver details
+==============
 
-	Based on:
+Based on:
 	Intel 82802AB/82802AC Firmware Hub (FWH) Datasheet
-		May 1999 Order Number: 290658-002 R
+	May 1999 Order Number: 290658-002 R
 
-	Intel 82802 Firmware Hub: Random Number Generator
+Intel 82802 Firmware Hub:
+	Random Number Generator
 	Programmer's Reference Manual
-		December 1999 Order Number: 298029-001 R
+	December 1999 Order Number: 298029-001 R
 
-	Intel 82802 Firmware HUB Random Number Generator Driver
+Intel 82802 Firmware HUB Random Number Generator Driver
 	Copyright (c) 2000 Matt Sottek <msottek@quiknet.com>
 
-	Special thanks to Matt Sottek.  I did the "guts", he
-	did the "brains" and all the testing.
+Special thanks to Matt Sottek.  I did the "guts", he
+did the "brains" and all the testing.
diff --git a/Documentation/hwspinlock.txt b/Documentation/hwspinlock.txt
index 61c1ee98e59f..ed640a278185 100644
--- a/Documentation/hwspinlock.txt
+++ b/Documentation/hwspinlock.txt
@@ -1,6 +1,9 @@
+===========================
 Hardware Spinlock Framework
+===========================
 
-1. Introduction
+Introduction
+============
 
 Hardware spinlock modules provide hardware assistance for synchronization
 and mutual exclusion between heterogeneous processors and those not operating
@@ -32,286 +35,370 @@ structure).
 A common hwspinlock interface makes it possible to have generic, platform-
 independent, drivers.
 
-2. User API
+User API
+========
+
+::
 
   struct hwspinlock *hwspin_lock_request(void);
-   - dynamically assign an hwspinlock and return its address, or NULL
-     in case an unused hwspinlock isn't available. Users of this
-     API will usually want to communicate the lock's id to the remote core
-     before it can be used to achieve synchronization.
-     Should be called from a process context (might sleep).
+
+Dynamically assign an hwspinlock and return its address, or NULL
+in case an unused hwspinlock isn't available. Users of this
+API will usually want to communicate the lock's id to the remote core
+before it can be used to achieve synchronization.
+
+Should be called from a process context (might sleep).
+
+::
 
   struct hwspinlock *hwspin_lock_request_specific(unsigned int id);
-   - assign a specific hwspinlock id and return its address, or NULL
-     if that hwspinlock is already in use. Usually board code will
-     be calling this function in order to reserve specific hwspinlock
-     ids for predefined purposes.
-     Should be called from a process context (might sleep).
+
+Assign a specific hwspinlock id and return its address, or NULL
+if that hwspinlock is already in use. Usually board code will
+be calling this function in order to reserve specific hwspinlock
+ids for predefined purposes.
+
+Should be called from a process context (might sleep).
+
+::
 
   int of_hwspin_lock_get_id(struct device_node *np, int index);
-   - retrieve the global lock id for an OF phandle-based specific lock.
-     This function provides a means for DT users of a hwspinlock module
-     to get the global lock id of a specific hwspinlock, so that it can
-     be requested using the normal hwspin_lock_request_specific() API.
-     The function returns a lock id number on success, -EPROBE_DEFER if
-     the hwspinlock device is not yet registered with the core, or other
-     error values.
-     Should be called from a process context (might sleep).
+
+Retrieve the global lock id for an OF phandle-based specific lock.
+This function provides a means for DT users of a hwspinlock module
+to get the global lock id of a specific hwspinlock, so that it can
+be requested using the normal hwspin_lock_request_specific() API.
+
+The function returns a lock id number on success, -EPROBE_DEFER if
+the hwspinlock device is not yet registered with the core, or other
+error values.
+
+Should be called from a process context (might sleep).
+
+::
 
   int hwspin_lock_free(struct hwspinlock *hwlock);
-   - free a previously-assigned hwspinlock; returns 0 on success, or an
-     appropriate error code on failure (e.g. -EINVAL if the hwspinlock
-     is already free).
-     Should be called from a process context (might sleep).
+
+Free a previously-assigned hwspinlock; returns 0 on success, or an
+appropriate error code on failure (e.g. -EINVAL if the hwspinlock
+is already free).
+
+Should be called from a process context (might sleep).
+
+::
 
   int hwspin_lock_timeout(struct hwspinlock *hwlock, unsigned int timeout);
-   - lock a previously-assigned hwspinlock with a timeout limit (specified in
-     msecs). If the hwspinlock is already taken, the function will busy loop
-     waiting for it to be released, but give up when the timeout elapses.
-     Upon a successful return from this function, preemption is disabled so
-     the caller must not sleep, and is advised to release the hwspinlock as
-     soon as possible, in order to minimize remote cores polling on the
-     hardware interconnect.
-     Returns 0 when successful and an appropriate error code otherwise (most
-     notably -ETIMEDOUT if the hwspinlock is still busy after timeout msecs).
-     The function will never sleep.
+
+Lock a previously-assigned hwspinlock with a timeout limit (specified in
+msecs). If the hwspinlock is already taken, the function will busy loop
+waiting for it to be released, but give up when the timeout elapses.
+Upon a successful return from this function, preemption is disabled so
+the caller must not sleep, and is advised to release the hwspinlock as
+soon as possible, in order to minimize remote cores polling on the
+hardware interconnect.
+
+Returns 0 when successful and an appropriate error code otherwise (most
+notably -ETIMEDOUT if the hwspinlock is still busy after timeout msecs).
+The function will never sleep.
+
+::
 
   int hwspin_lock_timeout_irq(struct hwspinlock *hwlock, unsigned int timeout);
-   - lock a previously-assigned hwspinlock with a timeout limit (specified in
-     msecs). If the hwspinlock is already taken, the function will busy loop
-     waiting for it to be released, but give up when the timeout elapses.
-     Upon a successful return from this function, preemption and the local
-     interrupts are disabled, so the caller must not sleep, and is advised to
-     release the hwspinlock as soon as possible.
-     Returns 0 when successful and an appropriate error code otherwise (most
-     notably -ETIMEDOUT if the hwspinlock is still busy after timeout msecs).
-     The function will never sleep.
+
+Lock a previously-assigned hwspinlock with a timeout limit (specified in
+msecs). If the hwspinlock is already taken, the function will busy loop
+waiting for it to be released, but give up when the timeout elapses.
+Upon a successful return from this function, preemption and the local
+interrupts are disabled, so the caller must not sleep, and is advised to
+release the hwspinlock as soon as possible.
+
+Returns 0 when successful and an appropriate error code otherwise (most
+notably -ETIMEDOUT if the hwspinlock is still busy after timeout msecs).
+The function will never sleep.
+
+::
 
   int hwspin_lock_timeout_irqsave(struct hwspinlock *hwlock, unsigned int to,
-							unsigned long *flags);
-   - lock a previously-assigned hwspinlock with a timeout limit (specified in
-     msecs). If the hwspinlock is already taken, the function will busy loop
-     waiting for it to be released, but give up when the timeout elapses.
-     Upon a successful return from this function, preemption is disabled,
-     local interrupts are disabled and their previous state is saved at the
-     given flags placeholder. The caller must not sleep, and is advised to
-     release the hwspinlock as soon as possible.
-     Returns 0 when successful and an appropriate error code otherwise (most
-     notably -ETIMEDOUT if the hwspinlock is still busy after timeout msecs).
-     The function will never sleep.
+				  unsigned long *flags);
+
+Lock a previously-assigned hwspinlock with a timeout limit (specified in
+msecs). If the hwspinlock is already taken, the function will busy loop
+waiting for it to be released, but give up when the timeout elapses.
+Upon a successful return from this function, preemption is disabled,
+local interrupts are disabled and their previous state is saved at the
+given flags placeholder. The caller must not sleep, and is advised to
+release the hwspinlock as soon as possible.
+
+Returns 0 when successful and an appropriate error code otherwise (most
+notably -ETIMEDOUT if the hwspinlock is still busy after timeout msecs).
+
+The function will never sleep.
+
+::
 
   int hwspin_trylock(struct hwspinlock *hwlock);
-   - attempt to lock a previously-assigned hwspinlock, but immediately fail if
-     it is already taken.
-     Upon a successful return from this function, preemption is disabled so
-     caller must not sleep, and is advised to release the hwspinlock as soon as
-     possible, in order to minimize remote cores polling on the hardware
-     interconnect.
-     Returns 0 on success and an appropriate error code otherwise (most
-     notably -EBUSY if the hwspinlock was already taken).
-     The function will never sleep.
+
+
+Attempt to lock a previously-assigned hwspinlock, but immediately fail if
+it is already taken.
+
+Upon a successful return from this function, preemption is disabled so
+caller must not sleep, and is advised to release the hwspinlock as soon as
+possible, in order to minimize remote cores polling on the hardware
+interconnect.
+
+Returns 0 on success and an appropriate error code otherwise (most
+notably -EBUSY if the hwspinlock was already taken).
+The function will never sleep.
+
+::
 
   int hwspin_trylock_irq(struct hwspinlock *hwlock);
-   - attempt to lock a previously-assigned hwspinlock, but immediately fail if
-     it is already taken.
-     Upon a successful return from this function, preemption and the local
-     interrupts are disabled so caller must not sleep, and is advised to
-     release the hwspinlock as soon as possible.
-     Returns 0 on success and an appropriate error code otherwise (most
-     notably -EBUSY if the hwspinlock was already taken).
-     The function will never sleep.
+
+
+Attempt to lock a previously-assigned hwspinlock, but immediately fail if
+it is already taken.
+
+Upon a successful return from this function, preemption and the local
+interrupts are disabled so caller must not sleep, and is advised to
+release the hwspinlock as soon as possible.
+
+Returns 0 on success and an appropriate error code otherwise (most
+notably -EBUSY if the hwspinlock was already taken).
+
+The function will never sleep.
+
+::
 
   int hwspin_trylock_irqsave(struct hwspinlock *hwlock, unsigned long *flags);
-   - attempt to lock a previously-assigned hwspinlock, but immediately fail if
-     it is already taken.
-     Upon a successful return from this function, preemption is disabled,
-     the local interrupts are disabled and their previous state is saved
-     at the given flags placeholder. The caller must not sleep, and is advised
-     to release the hwspinlock as soon as possible.
-     Returns 0 on success and an appropriate error code otherwise (most
-     notably -EBUSY if the hwspinlock was already taken).
-     The function will never sleep.
+
+Attempt to lock a previously-assigned hwspinlock, but immediately fail if
+it is already taken.
+
+Upon a successful return from this function, preemption is disabled,
+the local interrupts are disabled and their previous state is saved
+at the given flags placeholder. The caller must not sleep, and is advised
+to release the hwspinlock as soon as possible.
+
+Returns 0 on success and an appropriate error code otherwise (most
+notably -EBUSY if the hwspinlock was already taken).
+The function will never sleep.
+
+::
 
   void hwspin_unlock(struct hwspinlock *hwlock);
-   - unlock a previously-locked hwspinlock. Always succeed, and can be called
-     from any context (the function never sleeps). Note: code should _never_
-     unlock an hwspinlock which is already unlocked (there is no protection
-     against this).
+
+Unlock a previously-locked hwspinlock. Always succeed, and can be called
+from any context (the function never sleeps).
+
+.. note::
+
+  code should **never** unlock an hwspinlock which is already unlocked
+  (there is no protection against this).
+
+::
 
   void hwspin_unlock_irq(struct hwspinlock *hwlock);
-   - unlock a previously-locked hwspinlock and enable local interrupts.
-     The caller should _never_ unlock an hwspinlock which is already unlocked.
-     Doing so is considered a bug (there is no protection against this).
-     Upon a successful return from this function, preemption and local
-     interrupts are enabled. This function will never sleep.
+
+Unlock a previously-locked hwspinlock and enable local interrupts.
+The caller should **never** unlock an hwspinlock which is already unlocked.
+
+Doing so is considered a bug (there is no protection against this).
+Upon a successful return from this function, preemption and local
+interrupts are enabled. This function will never sleep.
+
+::
 
   void
   hwspin_unlock_irqrestore(struct hwspinlock *hwlock, unsigned long *flags);
-   - unlock a previously-locked hwspinlock.
-     The caller should _never_ unlock an hwspinlock which is already unlocked.
-     Doing so is considered a bug (there is no protection against this).
-     Upon a successful return from this function, preemption is reenabled,
-     and the state of the local interrupts is restored to the state saved at
-     the given flags. This function will never sleep.
+
+Unlock a previously-locked hwspinlock.
+
+The caller should **never** unlock an hwspinlock which is already unlocked.
+Doing so is considered a bug (there is no protection against this).
+Upon a successful return from this function, preemption is reenabled,
+and the state of the local interrupts is restored to the state saved at
+the given flags. This function will never sleep.
+
+::
 
   int hwspin_lock_get_id(struct hwspinlock *hwlock);
-   - retrieve id number of a given hwspinlock. This is needed when an
-     hwspinlock is dynamically assigned: before it can be used to achieve
-     mutual exclusion with a remote cpu, the id number should be communicated
-     to the remote task with which we want to synchronize.
-     Returns the hwspinlock id number, or -EINVAL if hwlock is null.
-
-3. Typical usage
-
-#include <linux/hwspinlock.h>
-#include <linux/err.h>
-
-int hwspinlock_example1(void)
-{
-	struct hwspinlock *hwlock;
-	int ret;
-
-	/* dynamically assign a hwspinlock */
-	hwlock = hwspin_lock_request();
-	if (!hwlock)
-		...
-
-	id = hwspin_lock_get_id(hwlock);
-	/* probably need to communicate id to a remote processor now */
-
-	/* take the lock, spin for 1 sec if it's already taken */
-	ret = hwspin_lock_timeout(hwlock, 1000);
-	if (ret)
-		...
-
-	/*
-	 * we took the lock, do our thing now, but do NOT sleep
-	 */
-
-	/* release the lock */
-	hwspin_unlock(hwlock);
-
-	/* free the lock */
-	ret = hwspin_lock_free(hwlock);
-	if (ret)
-		...
-
-	return ret;
-}
-
-int hwspinlock_example2(void)
-{
-	struct hwspinlock *hwlock;
-	int ret;
-
-	/*
-	 * assign a specific hwspinlock id - this should be called early
-	 * by board init code.
-	 */
-	hwlock = hwspin_lock_request_specific(PREDEFINED_LOCK_ID);
-	if (!hwlock)
-		...
-
-	/* try to take it, but don't spin on it */
-	ret = hwspin_trylock(hwlock);
-	if (!ret) {
-		pr_info("lock is already taken\n");
-		return -EBUSY;
-	}
 
-	/*
-	 * we took the lock, do our thing now, but do NOT sleep
-	 */
+Retrieve id number of a given hwspinlock. This is needed when an
+hwspinlock is dynamically assigned: before it can be used to achieve
+mutual exclusion with a remote cpu, the id number should be communicated
+to the remote task with which we want to synchronize.
+
+Returns the hwspinlock id number, or -EINVAL if hwlock is null.
+
+Typical usage
+=============
 
-	/* release the lock */
-	hwspin_unlock(hwlock);
+::
 
-	/* free the lock */
-	ret = hwspin_lock_free(hwlock);
-	if (ret)
-		...
+	#include <linux/hwspinlock.h>
+	#include <linux/err.h>
 
-	return ret;
-}
+	int hwspinlock_example1(void)
+	{
+		struct hwspinlock *hwlock;
+		int ret;
 
+		/* dynamically assign a hwspinlock */
+		hwlock = hwspin_lock_request();
+		if (!hwlock)
+			...
 
-4. API for implementors
+		id = hwspin_lock_get_id(hwlock);
+		/* probably need to communicate id to a remote processor now */
+
+		/* take the lock, spin for 1 sec if it's already taken */
+		ret = hwspin_lock_timeout(hwlock, 1000);
+		if (ret)
+			...
+
+		/*
+		* we took the lock, do our thing now, but do NOT sleep
+		*/
+
+		/* release the lock */
+		hwspin_unlock(hwlock);
+
+		/* free the lock */
+		ret = hwspin_lock_free(hwlock);
+		if (ret)
+			...
+
+		return ret;
+	}
+
+	int hwspinlock_example2(void)
+	{
+		struct hwspinlock *hwlock;
+		int ret;
+
+		/*
+		* assign a specific hwspinlock id - this should be called early
+		* by board init code.
+		*/
+		hwlock = hwspin_lock_request_specific(PREDEFINED_LOCK_ID);
+		if (!hwlock)
+			...
+
+		/* try to take it, but don't spin on it */
+		ret = hwspin_trylock(hwlock);
+		if (!ret) {
+			pr_info("lock is already taken\n");
+			return -EBUSY;
+		}
+
+		/*
+		* we took the lock, do our thing now, but do NOT sleep
+		*/
+
+		/* release the lock */
+		hwspin_unlock(hwlock);
+
+		/* free the lock */
+		ret = hwspin_lock_free(hwlock);
+		if (ret)
+			...
+
+		return ret;
+	}
+
+
+API for implementors
+====================
+
+::
 
   int hwspin_lock_register(struct hwspinlock_device *bank, struct device *dev,
 		const struct hwspinlock_ops *ops, int base_id, int num_locks);
-   - to be called from the underlying platform-specific implementation, in
-     order to register a new hwspinlock device (which is usually a bank of
-     numerous locks). Should be called from a process context (this function
-     might sleep).
-     Returns 0 on success, or appropriate error code on failure.
+
+To be called from the underlying platform-specific implementation, in
+order to register a new hwspinlock device (which is usually a bank of
+numerous locks). Should be called from a process context (this function
+might sleep).
+
+Returns 0 on success, or appropriate error code on failure.
+
+::
 
   int hwspin_lock_unregister(struct hwspinlock_device *bank);
-   - to be called from the underlying vendor-specific implementation, in order
-     to unregister an hwspinlock device (which is usually a bank of numerous
-     locks).
-     Should be called from a process context (this function might sleep).
-     Returns the address of hwspinlock on success, or NULL on error (e.g.
-     if the hwspinlock is still in use).
 
-5. Important structs
+To be called from the underlying vendor-specific implementation, in order
+to unregister an hwspinlock device (which is usually a bank of numerous
+locks).
+
+Should be called from a process context (this function might sleep).
+
+Returns the address of hwspinlock on success, or NULL on error (e.g.
+if the hwspinlock is still in use).
+
+Important structs
+=================
 
 struct hwspinlock_device is a device which usually contains a bank
 of hardware locks. It is registered by the underlying hwspinlock
 implementation using the hwspin_lock_register() API.
 
-/**
- * struct hwspinlock_device - a device which usually spans numerous hwspinlocks
- * @dev: underlying device, will be used to invoke runtime PM api
- * @ops: platform-specific hwspinlock handlers
- * @base_id: id index of the first lock in this device
- * @num_locks: number of locks in this device
- * @lock: dynamically allocated array of 'struct hwspinlock'
- */
-struct hwspinlock_device {
-	struct device *dev;
-	const struct hwspinlock_ops *ops;
-	int base_id;
-	int num_locks;
-	struct hwspinlock lock[0];
-};
+::
+
+	/**
+	* struct hwspinlock_device - a device which usually spans numerous hwspinlocks
+	* @dev: underlying device, will be used to invoke runtime PM api
+	* @ops: platform-specific hwspinlock handlers
+	* @base_id: id index of the first lock in this device
+	* @num_locks: number of locks in this device
+	* @lock: dynamically allocated array of 'struct hwspinlock'
+	*/
+	struct hwspinlock_device {
+		struct device *dev;
+		const struct hwspinlock_ops *ops;
+		int base_id;
+		int num_locks;
+		struct hwspinlock lock[0];
+	};
 
 struct hwspinlock_device contains an array of hwspinlock structs, each
-of which represents a single hardware lock:
-
-/**
- * struct hwspinlock - this struct represents a single hwspinlock instance
- * @bank: the hwspinlock_device structure which owns this lock
- * @lock: initialized and used by hwspinlock core
- * @priv: private data, owned by the underlying platform-specific hwspinlock drv
- */
-struct hwspinlock {
-	struct hwspinlock_device *bank;
-	spinlock_t lock;
-	void *priv;
-};
+of which represents a single hardware lock::
+
+	/**
+	* struct hwspinlock - this struct represents a single hwspinlock instance
+	* @bank: the hwspinlock_device structure which owns this lock
+	* @lock: initialized and used by hwspinlock core
+	* @priv: private data, owned by the underlying platform-specific hwspinlock drv
+	*/
+	struct hwspinlock {
+		struct hwspinlock_device *bank;
+		spinlock_t lock;
+		void *priv;
+	};
 
 When registering a bank of locks, the hwspinlock driver only needs to
 set the priv members of the locks. The rest of the members are set and
 initialized by the hwspinlock core itself.
 
-6. Implementation callbacks
+Implementation callbacks
+========================
 
-There are three possible callbacks defined in 'struct hwspinlock_ops':
+There are three possible callbacks defined in 'struct hwspinlock_ops'::
 
-struct hwspinlock_ops {
-	int (*trylock)(struct hwspinlock *lock);
-	void (*unlock)(struct hwspinlock *lock);
-	void (*relax)(struct hwspinlock *lock);
-};
+	struct hwspinlock_ops {
+		int (*trylock)(struct hwspinlock *lock);
+		void (*unlock)(struct hwspinlock *lock);
+		void (*relax)(struct hwspinlock *lock);
+	};
 
 The first two callbacks are mandatory:
 
 The ->trylock() callback should make a single attempt to take the lock, and
-return 0 on failure and 1 on success. This callback may _not_ sleep.
+return 0 on failure and 1 on success. This callback may **not** sleep.
 
 The ->unlock() callback releases the lock. It always succeed, and it, too,
-may _not_ sleep.
+may **not** sleep.
 
 The ->relax() callback is optional. It is called by hwspinlock core while
 spinning on a lock, and can be used by the underlying implementation to force
-a delay between two successive invocations of ->trylock(). It may _not_ sleep.
+a delay between two successive invocations of ->trylock(). It may **not** sleep.
diff --git a/Documentation/i2c/busses/i2c-i801 b/Documentation/i2c/busses/i2c-i801
index 820d9040de16..0500193434cb 100644
--- a/Documentation/i2c/busses/i2c-i801
+++ b/Documentation/i2c/busses/i2c-i801
@@ -34,6 +34,8 @@ Supported adapters:
   * Intel Broxton (SOC)
   * Intel Lewisburg (PCH)
   * Intel Gemini Lake (SOC)
+  * Intel Cannon Lake-H (PCH)
+  * Intel Cannon Lake-LP (PCH)
    Datasheets: Publicly available at the Intel website
 
 On Intel Patsburg and later chipsets, both the normal host SMBus controller
diff --git a/Documentation/i2c/dev-interface b/Documentation/i2c/dev-interface
index bcf919d8625c..5ff19447ac44 100644
--- a/Documentation/i2c/dev-interface
+++ b/Documentation/i2c/dev-interface
@@ -191,7 +191,7 @@ checking on future transactions.)
 4* Other ioctl() calls are converted to in-kernel function calls by
 i2c-dev. Examples include I2C_FUNCS, which queries the I2C adapter
 functionality using i2c.h:i2c_get_functionality(), and I2C_SMBUS, which
-performs an SMBus transaction using i2c-core.c:i2c_smbus_xfer().
+performs an SMBus transaction using i2c-core-smbus.c:i2c_smbus_xfer().
 
 The i2c-dev driver is responsible for checking all the parameters that
 come from user-space for validity. After this point, there is no
@@ -200,13 +200,13 @@ and calls that would have been performed by kernel I2C chip drivers
 directly. This means that I2C bus drivers don't need to implement
 anything special to support access from user-space.
 
-5* These i2c-core.c/i2c.h functions are wrappers to the actual
-implementation of your I2C bus driver. Each adapter must declare
-callback functions implementing these standard calls.
-i2c.h:i2c_get_functionality() calls i2c_adapter.algo->functionality(),
-while i2c-core.c:i2c_smbus_xfer() calls either
+5* These i2c.h functions are wrappers to the actual implementation of
+your I2C bus driver. Each adapter must declare callback functions
+implementing these standard calls. i2c.h:i2c_get_functionality() calls
+i2c_adapter.algo->functionality(), while
+i2c-core-smbus.c:i2c_smbus_xfer() calls either
 adapter.algo->smbus_xfer() if it is implemented, or if not,
-i2c-core.c:i2c_smbus_xfer_emulated() which in turn calls
+i2c-core-smbus.c:i2c_smbus_xfer_emulated() which in turn calls
 i2c_adapter.algo->master_xfer().
 
 After your I2C bus driver has processed these requests, execution runs
diff --git a/Documentation/input/index.rst b/Documentation/input/index.rst
index 7a3e71c2bd00..9888f5cbf6d5 100644
--- a/Documentation/input/index.rst
+++ b/Documentation/input/index.rst
@@ -6,7 +6,6 @@ Contents:
 
 .. toctree::
    :maxdepth: 2
-   :numbered:
 
    input_uapi
    input_kapi
diff --git a/Documentation/intel_txt.txt b/Documentation/intel_txt.txt
index 91d89c540709..d83c1a2122c9 100644
--- a/Documentation/intel_txt.txt
+++ b/Documentation/intel_txt.txt
@@ -1,4 +1,5 @@
-Intel(R) TXT Overview:
+=====================
+Intel(R) TXT Overview
 =====================
 
 Intel's technology for safer computing, Intel(R) Trusted Execution
@@ -8,9 +9,10 @@ provide the building blocks for creating trusted platforms.
 Intel TXT was formerly known by the code name LaGrande Technology (LT).
 
 Intel TXT in Brief:
-o  Provides dynamic root of trust for measurement (DRTM)
-o  Data protection in case of improper shutdown
-o  Measurement and verification of launched environment
+
+-  Provides dynamic root of trust for measurement (DRTM)
+-  Data protection in case of improper shutdown
+-  Measurement and verification of launched environment
 
 Intel TXT is part of the vPro(TM) brand and is also available some
 non-vPro systems.  It is currently available on desktop systems
@@ -24,16 +26,21 @@ which has been updated for the new released platforms.
 
 Intel TXT has been presented at various events over the past few
 years, some of which are:
-      LinuxTAG 2008:
+
+      - LinuxTAG 2008:
           http://www.linuxtag.org/2008/en/conf/events/vp-donnerstag.html
-      TRUST2008:
+
+      - TRUST2008:
           http://www.trust-conference.eu/downloads/Keynote-Speakers/
           3_David-Grawrock_The-Front-Door-of-Trusted-Computing.pdf
-      IDF, Shanghai:
+
+      - IDF, Shanghai:
           http://www.prcidf.com.cn/index_en.html
-      IDFs 2006, 2007 (I'm not sure if/where they are online)
 
-Trusted Boot Project Overview:
+      - IDFs 2006, 2007
+	  (I'm not sure if/where they are online)
+
+Trusted Boot Project Overview
 =============================
 
 Trusted Boot (tboot) is an open source, pre-kernel/VMM module that
@@ -87,11 +94,12 @@ Intel-provided firmware).
 How Does it Work?
 =================
 
-o  Tboot is an executable that is launched by the bootloader as
+-  Tboot is an executable that is launched by the bootloader as
    the "kernel" (the binary the bootloader executes).
-o  It performs all of the work necessary to determine if the
+-  It performs all of the work necessary to determine if the
    platform supports Intel TXT and, if so, executes the GETSEC[SENTER]
    processor instruction that initiates the dynamic root of trust.
+
    -  If tboot determines that the system does not support Intel TXT
       or is not configured correctly (e.g. the SINIT AC Module was
       incorrect), it will directly launch the kernel with no changes
@@ -99,12 +107,14 @@ o  It performs all of the work necessary to determine if the
    -  Tboot will output various information about its progress to the
       terminal, serial port, and/or an in-memory log; the output
       locations can be configured with a command line switch.
-o  The GETSEC[SENTER] instruction will return control to tboot and
+
+-  The GETSEC[SENTER] instruction will return control to tboot and
    tboot then verifies certain aspects of the environment (e.g. TPM NV
    lock, e820 table does not have invalid entries, etc.).
-o  It will wake the APs from the special sleep state the GETSEC[SENTER]
+-  It will wake the APs from the special sleep state the GETSEC[SENTER]
    instruction had put them in and place them into a wait-for-SIPI
    state.
+
    -  Because the processors will not respond to an INIT or SIPI when
       in the TXT environment, it is necessary to create a small VT-x
       guest for the APs.  When they run in this guest, they will
@@ -112,8 +122,10 @@ o  It will wake the APs from the special sleep state the GETSEC[SENTER]
       VMEXITs, and then disable VT and jump to the SIPI vector.  This
       approach seemed like a better choice than having to insert
       special code into the kernel's MP wakeup sequence.
-o  Tboot then applies an (optional) user-defined launch policy to
+
+-  Tboot then applies an (optional) user-defined launch policy to
    verify the kernel and initrd.
+
    -  This policy is rooted in TPM NV and is described in the tboot
       project.  The tboot project also contains code for tools to
       create and provision the policy.
@@ -121,30 +133,34 @@ o  Tboot then applies an (optional) user-defined launch policy to
       then any kernel will be launched.
    -  Policy action is flexible and can include halting on failures
       or simply logging them and continuing.
-o  Tboot adjusts the e820 table provided by the bootloader to reserve
+
+-  Tboot adjusts the e820 table provided by the bootloader to reserve
    its own location in memory as well as to reserve certain other
    TXT-related regions.
-o  As part of its launch, tboot DMA protects all of RAM (using the
+-  As part of its launch, tboot DMA protects all of RAM (using the
    VT-d PMRs).  Thus, the kernel must be booted with 'intel_iommu=on'
    in order to remove this blanket protection and use VT-d's
    page-level protection.
-o  Tboot will populate a shared page with some data about itself and
+-  Tboot will populate a shared page with some data about itself and
    pass this to the Linux kernel as it transfers control.
+
    -  The location of the shared page is passed via the boot_params
       struct as a physical address.
-o  The kernel will look for the tboot shared page address and, if it
+
+-  The kernel will look for the tboot shared page address and, if it
    exists, map it.
-o  As one of the checks/protections provided by TXT, it makes a copy
+-  As one of the checks/protections provided by TXT, it makes a copy
    of the VT-d DMARs in a DMA-protected region of memory and verifies
    them for correctness.  The VT-d code will detect if the kernel was
    launched with tboot and use this copy instead of the one in the
    ACPI table.
-o  At this point, tboot and TXT are out of the picture until a
+-  At this point, tboot and TXT are out of the picture until a
    shutdown (S<n>)
-o  In order to put a system into any of the sleep states after a TXT
+-  In order to put a system into any of the sleep states after a TXT
    launch, TXT must first be exited.  This is to prevent attacks that
    attempt to crash the system to gain control on reboot and steal
    data left in memory.
+
    -  The kernel will perform all of its sleep preparation and
       populate the shared page with the ACPI data needed to put the
       platform in the desired sleep state.
@@ -172,7 +188,7 @@ o  In order to put a system into any of the sleep states after a TXT
 That's pretty much it for TXT support.
 
 
-Configuring the System:
+Configuring the System
 ======================
 
 This code works with 32bit, 32bit PAE, and 64bit (x86_64) kernels.
@@ -181,7 +197,8 @@ In BIOS, the user must enable:  TPM, TXT, VT-x, VT-d.  Not all BIOSes
 allow these to be individually enabled/disabled and the screens in
 which to find them are BIOS-specific.
 
-grub.conf needs to be modified as follows:
+grub.conf needs to be modified as follows::
+
         title Linux 2.6.29-tip w/ tboot
           root (hd0,0)
                 kernel /tboot.gz logging=serial,vga,memory
diff --git a/Documentation/io-mapping.txt b/Documentation/io-mapping.txt
index 5ca78426f54c..a966239f04e4 100644
--- a/Documentation/io-mapping.txt
+++ b/Documentation/io-mapping.txt
@@ -1,66 +1,81 @@
+========================
+The io_mapping functions
+========================
+
+API
+===
+
 The io_mapping functions in linux/io-mapping.h provide an abstraction for
 efficiently mapping small regions of an I/O device to the CPU. The initial
 usage is to support the large graphics aperture on 32-bit processors where
 ioremap_wc cannot be used to statically map the entire aperture to the CPU
 as it would consume too much of the kernel address space.
 
-A mapping object is created during driver initialization using
+A mapping object is created during driver initialization using::
 
 	struct io_mapping *io_mapping_create_wc(unsigned long base,
 						unsigned long size)
 
-		'base' is the bus address of the region to be made
-		mappable, while 'size' indicates how large a mapping region to
-		enable. Both are in bytes.
+'base' is the bus address of the region to be made
+mappable, while 'size' indicates how large a mapping region to
+enable. Both are in bytes.
 
-		This _wc variant provides a mapping which may only be used
-		with the io_mapping_map_atomic_wc or io_mapping_map_wc.
+This _wc variant provides a mapping which may only be used
+with the io_mapping_map_atomic_wc or io_mapping_map_wc.
 
 With this mapping object, individual pages can be mapped either atomically
 or not, depending on the necessary scheduling environment. Of course, atomic
-maps are more efficient:
+maps are more efficient::
 
 	void *io_mapping_map_atomic_wc(struct io_mapping *mapping,
 				       unsigned long offset)
 
-		'offset' is the offset within the defined mapping region.
-		Accessing addresses beyond the region specified in the
-		creation function yields undefined results. Using an offset
-		which is not page aligned yields an undefined result. The
-		return value points to a single page in CPU address space.
+'offset' is the offset within the defined mapping region.
+Accessing addresses beyond the region specified in the
+creation function yields undefined results. Using an offset
+which is not page aligned yields an undefined result. The
+return value points to a single page in CPU address space.
+
+This _wc variant returns a write-combining map to the
+page and may only be used with mappings created by
+io_mapping_create_wc
 
-		This _wc variant returns a write-combining map to the
-		page and may only be used with mappings created by
-		io_mapping_create_wc
+Note that the task may not sleep while holding this page
+mapped.
 
-		Note that the task may not sleep while holding this page
-		mapped.
+::
 
 	void io_mapping_unmap_atomic(void *vaddr)
 
-		'vaddr' must be the value returned by the last
-		io_mapping_map_atomic_wc call. This unmaps the specified
-		page and allows the task to sleep once again.
+'vaddr' must be the value returned by the last
+io_mapping_map_atomic_wc call. This unmaps the specified
+page and allows the task to sleep once again.
 
 If you need to sleep while holding the lock, you can use the non-atomic
 variant, although they may be significantly slower.
 
+::
+
 	void *io_mapping_map_wc(struct io_mapping *mapping,
 				unsigned long offset)
 
-		This works like io_mapping_map_atomic_wc except it allows
-		the task to sleep while holding the page mapped.
+This works like io_mapping_map_atomic_wc except it allows
+the task to sleep while holding the page mapped.
+
+
+::
 
 	void io_mapping_unmap(void *vaddr)
 
-		This works like io_mapping_unmap_atomic, except it is used
-		for pages mapped with io_mapping_map_wc.
+This works like io_mapping_unmap_atomic, except it is used
+for pages mapped with io_mapping_map_wc.
 
-At driver close time, the io_mapping object must be freed:
+At driver close time, the io_mapping object must be freed::
 
 	void io_mapping_free(struct io_mapping *mapping)
 
-Current Implementation:
+Current Implementation
+======================
 
 The initial implementation of these functions uses existing mapping
 mechanisms and so provides only an abstraction layer and no new
diff --git a/Documentation/io_ordering.txt b/Documentation/io_ordering.txt
index 9faae6f26d32..2ab303ce9a0d 100644
--- a/Documentation/io_ordering.txt
+++ b/Documentation/io_ordering.txt
@@ -1,3 +1,7 @@
+==============================================
+Ordering I/O writes to memory-mapped addresses
+==============================================
+
 On some platforms, so-called memory-mapped I/O is weakly ordered.  On such
 platforms, driver writers are responsible for ensuring that I/O writes to
 memory-mapped addresses on their device arrive in the order intended.  This is
@@ -8,39 +12,39 @@ critical section of code protected by spinlocks.  This would ensure that
 subsequent writes to I/O space arrived only after all prior writes (much like a
 memory barrier op, mb(), only with respect to I/O).
 
-A more concrete example from a hypothetical device driver:
+A more concrete example from a hypothetical device driver::
 
-        ...
-CPU A:  spin_lock_irqsave(&dev_lock, flags)
-CPU A:  val = readl(my_status);
-CPU A:  ...
-CPU A:  writel(newval, ring_ptr);
-CPU A:  spin_unlock_irqrestore(&dev_lock, flags)
-        ...
-CPU B:  spin_lock_irqsave(&dev_lock, flags)
-CPU B:  val = readl(my_status);
-CPU B:  ...
-CPU B:  writel(newval2, ring_ptr);
-CPU B:  spin_unlock_irqrestore(&dev_lock, flags)
-        ...
+		...
+	CPU A:  spin_lock_irqsave(&dev_lock, flags)
+	CPU A:  val = readl(my_status);
+	CPU A:  ...
+	CPU A:  writel(newval, ring_ptr);
+	CPU A:  spin_unlock_irqrestore(&dev_lock, flags)
+		...
+	CPU B:  spin_lock_irqsave(&dev_lock, flags)
+	CPU B:  val = readl(my_status);
+	CPU B:  ...
+	CPU B:  writel(newval2, ring_ptr);
+	CPU B:  spin_unlock_irqrestore(&dev_lock, flags)
+		...
 
 In the case above, the device may receive newval2 before it receives newval,
-which could cause problems.  Fixing it is easy enough though:
+which could cause problems.  Fixing it is easy enough though::
 
-        ...
-CPU A:  spin_lock_irqsave(&dev_lock, flags)
-CPU A:  val = readl(my_status);
-CPU A:  ...
-CPU A:  writel(newval, ring_ptr);
-CPU A:  (void)readl(safe_register); /* maybe a config register? */
-CPU A:  spin_unlock_irqrestore(&dev_lock, flags)
-        ...
-CPU B:  spin_lock_irqsave(&dev_lock, flags)
-CPU B:  val = readl(my_status);
-CPU B:  ...
-CPU B:  writel(newval2, ring_ptr);
-CPU B:  (void)readl(safe_register); /* maybe a config register? */
-CPU B:  spin_unlock_irqrestore(&dev_lock, flags)
+		...
+	CPU A:  spin_lock_irqsave(&dev_lock, flags)
+	CPU A:  val = readl(my_status);
+	CPU A:  ...
+	CPU A:  writel(newval, ring_ptr);
+	CPU A:  (void)readl(safe_register); /* maybe a config register? */
+	CPU A:  spin_unlock_irqrestore(&dev_lock, flags)
+		...
+	CPU B:  spin_lock_irqsave(&dev_lock, flags)
+	CPU B:  val = readl(my_status);
+	CPU B:  ...
+	CPU B:  writel(newval2, ring_ptr);
+	CPU B:  (void)readl(safe_register); /* maybe a config register? */
+	CPU B:  spin_unlock_irqrestore(&dev_lock, flags)
 
 Here, the reads from safe_register will cause the I/O chipset to flush any
 pending writes before actually posting the read to the chipset, preventing
diff --git a/Documentation/iostats.txt b/Documentation/iostats.txt
index 65f694f2d1c9..04d394a2e06c 100644
--- a/Documentation/iostats.txt
+++ b/Documentation/iostats.txt
@@ -1,49 +1,50 @@
+=====================
 I/O statistics fields
----------------
+=====================
 
 Since 2.4.20 (and some versions before, with patches), and 2.5.45,
 more extensive disk statistics have been introduced to help measure disk
-activity. Tools such as sar and iostat typically interpret these and do
+activity. Tools such as ``sar`` and ``iostat`` typically interpret these and do
 the work for you, but in case you are interested in creating your own
 tools, the fields are explained here.
 
 In 2.4 now, the information is found as additional fields in
-/proc/partitions.  In 2.6, the same information is found in two
-places: one is in the file /proc/diskstats, and the other is within
+``/proc/partitions``.  In 2.6 and upper, the same information is found in two
+places: one is in the file ``/proc/diskstats``, and the other is within
 the sysfs file system, which must be mounted in order to obtain
 the information. Throughout this document we'll assume that sysfs
-is mounted on /sys, although of course it may be mounted anywhere.
-Both /proc/diskstats and sysfs use the same source for the information
+is mounted on ``/sys``, although of course it may be mounted anywhere.
+Both ``/proc/diskstats`` and sysfs use the same source for the information
 and so should not differ.
 
-Here are examples of these different formats:
+Here are examples of these different formats::
 
-2.4:
-   3     0   39082680 hda 446216 784926 9550688 4382310 424847 312726 5922052 19310380 0 3376340 23705160
-   3     1    9221278 hda1 35486 0 35496 38030 0 0 0 0 0 38030 38030
+   2.4:
+      3     0   39082680 hda 446216 784926 9550688 4382310 424847 312726 5922052 19310380 0 3376340 23705160
+      3     1    9221278 hda1 35486 0 35496 38030 0 0 0 0 0 38030 38030
 
+   2.6+ sysfs:
+      446216 784926 9550688 4382310 424847 312726 5922052 19310380 0 3376340 23705160
+      35486    38030    38030    38030
 
-2.6 sysfs:
-   446216 784926 9550688 4382310 424847 312726 5922052 19310380 0 3376340 23705160
-   35486    38030    38030    38030
+   2.6+ diskstats:
+      3    0   hda 446216 784926 9550688 4382310 424847 312726 5922052 19310380 0 3376340 23705160
+      3    1   hda1 35486 38030 38030 38030
 
-2.6 diskstats:
-   3    0   hda 446216 784926 9550688 4382310 424847 312726 5922052 19310380 0 3376340 23705160
-   3    1   hda1 35486 38030 38030 38030
+On 2.4 you might execute ``grep 'hda ' /proc/partitions``. On 2.6+, you have
+a choice of ``cat /sys/block/hda/stat`` or ``grep 'hda ' /proc/diskstats``.
 
-On 2.4 you might execute "grep 'hda ' /proc/partitions". On 2.6, you have
-a choice of "cat /sys/block/hda/stat" or "grep 'hda ' /proc/diskstats".
 The advantage of one over the other is that the sysfs choice works well
-if you are watching a known, small set of disks.  /proc/diskstats may
+if you are watching a known, small set of disks.  ``/proc/diskstats`` may
 be a better choice if you are watching a large number of disks because
 you'll avoid the overhead of 50, 100, or 500 or more opens/closes with
 each snapshot of your disk statistics.
 
 In 2.4, the statistics fields are those after the device name. In
 the above example, the first field of statistics would be 446216.
-By contrast, in 2.6 if you look at /sys/block/hda/stat, you'll
+By contrast, in 2.6+ if you look at ``/sys/block/hda/stat``, you'll
 find just the eleven fields, beginning with 446216.  If you look at
-/proc/diskstats, the eleven fields will be preceded by the major and
+``/proc/diskstats``, the eleven fields will be preceded by the major and
 minor device numbers, and device name.  Each of these formats provides
 eleven fields of statistics, each meaning exactly the same things.
 All fields except field 9 are cumulative since boot.  Field 9 should
@@ -59,30 +60,40 @@ system-wide stats you'll have to find all the devices and sum them all up.
 
 Field  1 -- # of reads completed
     This is the total number of reads completed successfully.
+
 Field  2 -- # of reads merged, field 6 -- # of writes merged
     Reads and writes which are adjacent to each other may be merged for
     efficiency.  Thus two 4K reads may become one 8K read before it is
     ultimately handed to the disk, and so it will be counted (and queued)
     as only one I/O.  This field lets you know how often this was done.
+
 Field  3 -- # of sectors read
     This is the total number of sectors read successfully.
+
 Field  4 -- # of milliseconds spent reading
     This is the total number of milliseconds spent by all reads (as
     measured from __make_request() to end_that_request_last()).
+
 Field  5 -- # of writes completed
     This is the total number of writes completed successfully.
+
 Field  6 -- # of writes merged
     See the description of field 2.
+
 Field  7 -- # of sectors written
     This is the total number of sectors written successfully.
+
 Field  8 -- # of milliseconds spent writing
     This is the total number of milliseconds spent by all writes (as
     measured from __make_request() to end_that_request_last()).
+
 Field  9 -- # of I/Os currently in progress
     The only field that should go to zero. Incremented as requests are
     given to appropriate struct request_queue and decremented as they finish.
+
 Field 10 -- # of milliseconds spent doing I/Os
     This field increases so long as field 9 is nonzero.
+
 Field 11 -- weighted # of milliseconds spent doing I/Os
     This field is incremented at each I/O start, I/O completion, I/O
     merge, or read of these stats by the number of I/Os in progress
@@ -97,7 +108,7 @@ introduced when changes collide, so (for instance) adding up all the
 read I/Os issued per partition should equal those made to the disks ...
 but due to the lack of locking it may only be very close.
 
-In 2.6, there are counters for each CPU, which make the lack of locking
+In 2.6+, there are counters for each CPU, which make the lack of locking
 almost a non-issue.  When the statistics are read, the per-CPU counters
 are summed (possibly overflowing the unsigned long variable they are
 summed to) and the result given to the user.  There is no convenient
@@ -106,22 +117,25 @@ user interface for accessing the per-CPU counters themselves.
 Disks vs Partitions
 -------------------
 
-There were significant changes between 2.4 and 2.6 in the I/O subsystem.
+There were significant changes between 2.4 and 2.6+ in the I/O subsystem.
 As a result, some statistic information disappeared. The translation from
 a disk address relative to a partition to the disk address relative to
 the host disk happens much earlier.  All merges and timings now happen
 at the disk level rather than at both the disk and partition level as
-in 2.4.  Consequently, you'll see a different statistics output on 2.6 for
+in 2.4.  Consequently, you'll see a different statistics output on 2.6+ for
 partitions from that for disks.  There are only *four* fields available
-for partitions on 2.6 machines.  This is reflected in the examples above.
+for partitions on 2.6+ machines.  This is reflected in the examples above.
 
 Field  1 -- # of reads issued
     This is the total number of reads issued to this partition.
+
 Field  2 -- # of sectors read
     This is the total number of sectors requested to be read from this
     partition.
+
 Field  3 -- # of writes issued
     This is the total number of writes issued to this partition.
+
 Field  4 -- # of sectors written
     This is the total number of sectors requested to be written to
     this partition.
@@ -149,16 +163,16 @@ to some (probably insignificant) inaccuracy.
 Additional notes
 ----------------
 
-In 2.6, sysfs is not mounted by default.  If your distribution of
+In 2.6+, sysfs is not mounted by default.  If your distribution of
 Linux hasn't added it already, here's the line you'll want to add to
-your /etc/fstab:
+your ``/etc/fstab``::
 
-none /sys sysfs defaults 0 0
+	none /sys sysfs defaults 0 0
 
 
-In 2.6, all disk statistics were removed from /proc/stat.  In 2.4, they
-appear in both /proc/partitions and /proc/stat, although the ones in
-/proc/stat take a very different format from those in /proc/partitions
+In 2.6+, all disk statistics were removed from ``/proc/stat``.  In 2.4, they
+appear in both ``/proc/partitions`` and ``/proc/stat``, although the ones in
+``/proc/stat`` take a very different format from those in ``/proc/partitions``
 (see proc(5), if your system has it.)
 
 -- ricklind@us.ibm.com
diff --git a/Documentation/irqflags-tracing.txt b/Documentation/irqflags-tracing.txt
index f6da05670e16..bdd208259fb3 100644
--- a/Documentation/irqflags-tracing.txt
+++ b/Documentation/irqflags-tracing.txt
@@ -1,8 +1,10 @@
+=======================
 IRQ-flags state tracing
+=======================
 
-started by Ingo Molnar <mingo@redhat.com>
+:Author: started by Ingo Molnar <mingo@redhat.com>
 
-the "irq-flags tracing" feature "traces" hardirq and softirq state, in
+The "irq-flags tracing" feature "traces" hardirq and softirq state, in
 that it gives interested subsystems an opportunity to be notified of
 every hardirqs-off/hardirqs-on, softirqs-off/softirqs-on event that
 happens in the kernel.
@@ -14,7 +16,7 @@ CONFIG_PROVE_RWSEM_LOCKING will be offered on an architecture - these
 are locking APIs that are not used in IRQ context. (the one exception
 for rwsems is worked around)
 
-architecture support for this is certainly not in the "trivial"
+Architecture support for this is certainly not in the "trivial"
 category, because lots of lowlevel assembly code deal with irq-flags
 state changes. But an architecture can be irq-flags-tracing enabled in a
 rather straightforward and risk-free manner.
@@ -41,7 +43,7 @@ irq-flags-tracing support:
   excluded from the irq-tracing [and lock validation] mechanism via
   lockdep_off()/lockdep_on().
 
-in general there is no risk from having an incomplete irq-flags-tracing
+In general there is no risk from having an incomplete irq-flags-tracing
 implementation in an architecture: lockdep will detect that and will
 turn itself off. I.e. the lock validator will still be reliable. There
 should be no crashes due to irq-tracing bugs. (except if the assembly
diff --git a/Documentation/isa.txt b/Documentation/isa.txt
index f232c26a40be..def4a7b690b5 100644
--- a/Documentation/isa.txt
+++ b/Documentation/isa.txt
@@ -1,5 +1,6 @@
+===========
 ISA Drivers
------------
+===========
 
 The following text is adapted from the commit message of the initial
 commit of the ISA bus driver authored by Rene Herman.
@@ -23,17 +24,17 @@ that all device creation has been made internal as well.
 
 The usage model this provides is nice, and has been acked from the ALSA
 side by Takashi Iwai and Jaroslav Kysela. The ALSA driver module_init's
-now (for oldisa-only drivers) become:
+now (for oldisa-only drivers) become::
 
-static int __init alsa_card_foo_init(void)
-{
-	return isa_register_driver(&snd_foo_isa_driver, SNDRV_CARDS);
-}
+	static int __init alsa_card_foo_init(void)
+	{
+		return isa_register_driver(&snd_foo_isa_driver, SNDRV_CARDS);
+	}
 
-static void __exit alsa_card_foo_exit(void)
-{
-	isa_unregister_driver(&snd_foo_isa_driver);
-}
+	static void __exit alsa_card_foo_exit(void)
+	{
+		isa_unregister_driver(&snd_foo_isa_driver);
+	}
 
 Quite like the other bus models therefore. This removes a lot of
 duplicated init code from the ALSA ISA drivers.
@@ -47,11 +48,11 @@ parameter, indicating how many devices to create and call our methods
 with.
 
 The platform_driver callbacks are called with a platform_device param;
-the isa_driver callbacks are being called with a "struct device *dev,
-unsigned int id" pair directly -- with the device creation completely
+the isa_driver callbacks are being called with a ``struct device *dev,
+unsigned int id`` pair directly -- with the device creation completely
 internal to the bus it's much cleaner to not leak isa_dev's by passing
 them in at all. The id is the only thing we ever want other then the
-struct device * anyways, and it makes for nicer code in the callbacks as
+struct device anyways, and it makes for nicer code in the callbacks as
 well.
 
 With this additional .match() callback ISA drivers have all options. If
@@ -75,20 +76,20 @@ This exports only two functions; isa_{,un}register_driver().
 
 isa_register_driver() register's the struct device_driver, and then
 loops over the passed in ndev creating devices and registering them.
-This causes the bus match method to be called for them, which is:
+This causes the bus match method to be called for them, which is::
 
-int isa_bus_match(struct device *dev, struct device_driver *driver)
-{
-          struct isa_driver *isa_driver = to_isa_driver(driver);
+	int isa_bus_match(struct device *dev, struct device_driver *driver)
+	{
+		struct isa_driver *isa_driver = to_isa_driver(driver);
 
-          if (dev->platform_data == isa_driver) {
-                  if (!isa_driver->match ||
-                          isa_driver->match(dev, to_isa_dev(dev)->id))
-                          return 1;
-                  dev->platform_data = NULL;
-          }
-          return 0;
-}
+		if (dev->platform_data == isa_driver) {
+			if (!isa_driver->match ||
+				isa_driver->match(dev, to_isa_dev(dev)->id))
+				return 1;
+			dev->platform_data = NULL;
+		}
+		return 0;
+	}
 
 The first thing this does is check if this device is in fact one of this
 driver's devices by seeing if the device's platform_data pointer is set
@@ -102,7 +103,7 @@ well.
 Then, if the the driver did not provide a .match, it matches. If it did,
 the driver match() method is called to determine a match.
 
-If it did _not_ match, dev->platform_data is reset to indicate this to
+If it did **not** match, dev->platform_data is reset to indicate this to
 isa_register_driver which can then unregister the device again.
 
 If during all this, there's any error, or no devices matched at all
diff --git a/Documentation/isapnp.txt b/Documentation/isapnp.txt
index 400d1b5b523d..8d0840ac847b 100644
--- a/Documentation/isapnp.txt
+++ b/Documentation/isapnp.txt
@@ -1,3 +1,4 @@
+==========================================================
 ISA Plug & Play support by Jaroslav Kysela <perex@suse.cz>
 ==========================================================
 
diff --git a/Documentation/kdump/kdump.txt b/Documentation/kdump/kdump.txt
index 615434d81108..51814450a7f8 100644
--- a/Documentation/kdump/kdump.txt
+++ b/Documentation/kdump/kdump.txt
@@ -112,8 +112,8 @@ There are two possible methods of using Kdump.
 2) Or use the system kernel binary itself as dump-capture kernel and there is
    no need to build a separate dump-capture kernel. This is possible
    only with the architectures which support a relocatable kernel. As
-   of today, i386, x86_64, ppc64, ia64 and arm architectures support relocatable
-   kernel.
+   of today, i386, x86_64, ppc64, ia64, arm and arm64 architectures support
+   relocatable kernel.
 
 Building a relocatable kernel is advantageous from the point of view that
 one does not have to build a second kernel for capturing the dump. But
@@ -339,7 +339,7 @@ For arm:
 For arm64:
 	- Use vmlinux or Image
 
-If you are using a uncompressed vmlinux image then use following command
+If you are using an uncompressed vmlinux image then use following command
 to load dump-capture kernel.
 
    kexec -p <dump-capture-kernel-vmlinux-image> \
@@ -361,6 +361,12 @@ to load dump-capture kernel.
    --dtb=<dtb-for-dump-capture-kernel> \
    --append="root=<root-dev> <arch-specific-options>"
 
+If you are using an uncompressed Image, then use following command
+to load dump-capture kernel.
+
+   kexec -p <dump-capture-kernel-Image> \
+   --initrd=<initrd-for-dump-capture-kernel> \
+   --append="root=<root-dev> <arch-specific-options>"
 
 Please note, that --args-linux does not need to be specified for ia64.
 It is planned to make this a no-op on that architecture, but for now
diff --git a/Documentation/kernel-per-CPU-kthreads.txt b/Documentation/kernel-per-CPU-kthreads.txt
index 2cb7dc5c0e0d..0f00f9c164ac 100644
--- a/Documentation/kernel-per-CPU-kthreads.txt
+++ b/Documentation/kernel-per-CPU-kthreads.txt
@@ -1,27 +1,29 @@
-REDUCING OS JITTER DUE TO PER-CPU KTHREADS
+==========================================
+Reducing OS jitter due to per-cpu kthreads
+==========================================
 
 This document lists per-CPU kthreads in the Linux kernel and presents
 options to control their OS jitter.  Note that non-per-CPU kthreads are
 not listed here.  To reduce OS jitter from non-per-CPU kthreads, bind
 them to a "housekeeping" CPU dedicated to such work.
 
+References
+==========
 
-REFERENCES
+-	Documentation/IRQ-affinity.txt:  Binding interrupts to sets of CPUs.
 
-o	Documentation/IRQ-affinity.txt:  Binding interrupts to sets of CPUs.
+-	Documentation/cgroup-v1:  Using cgroups to bind tasks to sets of CPUs.
 
-o	Documentation/cgroup-v1:  Using cgroups to bind tasks to sets of CPUs.
-
-o	man taskset:  Using the taskset command to bind tasks to sets
+-	man taskset:  Using the taskset command to bind tasks to sets
 	of CPUs.
 
-o	man sched_setaffinity:  Using the sched_setaffinity() system
+-	man sched_setaffinity:  Using the sched_setaffinity() system
 	call to bind tasks to sets of CPUs.
 
-o	/sys/devices/system/cpu/cpuN/online:  Control CPU N's hotplug state,
+-	/sys/devices/system/cpu/cpuN/online:  Control CPU N's hotplug state,
 	writing "0" to offline and "1" to online.
 
-o	In order to locate kernel-generated OS jitter on CPU N:
+-	In order to locate kernel-generated OS jitter on CPU N:
 
 		cd /sys/kernel/debug/tracing
 		echo 1 > max_graph_depth # Increase the "1" for more detail
@@ -29,12 +31,17 @@ o	In order to locate kernel-generated OS jitter on CPU N:
 		# run workload
 		cat per_cpu/cpuN/trace
 
+kthreads
+========
+
+Name:
+  ehca_comp/%u
 
-KTHREADS
+Purpose:
+  Periodically process Infiniband-related work.
 
-Name: ehca_comp/%u
-Purpose: Periodically process Infiniband-related work.
 To reduce its OS jitter, do any of the following:
+
 1.	Don't use eHCA Infiniband hardware, instead choosing hardware
 	that does not require per-CPU kthreads.  This will prevent these
 	kthreads from being created in the first place.  (This will
@@ -46,26 +53,45 @@ To reduce its OS jitter, do any of the following:
 	provisioned only on selected CPUs.
 
 
-Name: irq/%d-%s
-Purpose: Handle threaded interrupts.
+Name:
+  irq/%d-%s
+
+Purpose:
+  Handle threaded interrupts.
+
 To reduce its OS jitter, do the following:
+
 1.	Use irq affinity to force the irq threads to execute on
 	some other CPU.
 
-Name: kcmtpd_ctr_%d
-Purpose: Handle Bluetooth work.
+Name:
+  kcmtpd_ctr_%d
+
+Purpose:
+  Handle Bluetooth work.
+
 To reduce its OS jitter, do one of the following:
+
 1.	Don't use Bluetooth, in which case these kthreads won't be
 	created in the first place.
 2.	Use irq affinity to force Bluetooth-related interrupts to
 	occur on some other CPU and furthermore initiate all
 	Bluetooth activity on some other CPU.
 
-Name: ksoftirqd/%u
-Purpose: Execute softirq handlers when threaded or when under heavy load.
+Name:
+  ksoftirqd/%u
+
+Purpose:
+  Execute softirq handlers when threaded or when under heavy load.
+
 To reduce its OS jitter, each softirq vector must be handled
 separately as follows:
-TIMER_SOFTIRQ:  Do all of the following:
+
+TIMER_SOFTIRQ
+-------------
+
+Do all of the following:
+
 1.	To the extent possible, keep the CPU out of the kernel when it
 	is non-idle, for example, by avoiding system calls and by forcing
 	both kernel threads and interrupts to execute elsewhere.
@@ -76,34 +102,59 @@ TIMER_SOFTIRQ:  Do all of the following:
 	first one back online.  Once you have onlined the CPUs in question,
 	do not offline any other CPUs, because doing so could force the
 	timer back onto one of the CPUs in question.
-NET_TX_SOFTIRQ and NET_RX_SOFTIRQ:  Do all of the following:
+
+NET_TX_SOFTIRQ and NET_RX_SOFTIRQ
+---------------------------------
+
+Do all of the following:
+
 1.	Force networking interrupts onto other CPUs.
 2.	Initiate any network I/O on other CPUs.
 3.	Once your application has started, prevent CPU-hotplug operations
 	from being initiated from tasks that might run on the CPU to
 	be de-jittered.  (It is OK to force this CPU offline and then
 	bring it back online before you start your application.)
-BLOCK_SOFTIRQ:  Do all of the following:
+
+BLOCK_SOFTIRQ
+-------------
+
+Do all of the following:
+
 1.	Force block-device interrupts onto some other CPU.
 2.	Initiate any block I/O on other CPUs.
 3.	Once your application has started, prevent CPU-hotplug operations
 	from being initiated from tasks that might run on the CPU to
 	be de-jittered.  (It is OK to force this CPU offline and then
 	bring it back online before you start your application.)
-IRQ_POLL_SOFTIRQ:  Do all of the following:
+
+IRQ_POLL_SOFTIRQ
+----------------
+
+Do all of the following:
+
 1.	Force block-device interrupts onto some other CPU.
 2.	Initiate any block I/O and block-I/O polling on other CPUs.
 3.	Once your application has started, prevent CPU-hotplug operations
 	from being initiated from tasks that might run on the CPU to
 	be de-jittered.  (It is OK to force this CPU offline and then
 	bring it back online before you start your application.)
-TASKLET_SOFTIRQ: Do one or more of the following:
+
+TASKLET_SOFTIRQ
+---------------
+
+Do one or more of the following:
+
 1.	Avoid use of drivers that use tasklets.  (Such drivers will contain
 	calls to things like tasklet_schedule().)
 2.	Convert all drivers that you must use from tasklets to workqueues.
 3.	Force interrupts for drivers using tasklets onto other CPUs,
 	and also do I/O involving these drivers on other CPUs.
-SCHED_SOFTIRQ: Do all of the following:
+
+SCHED_SOFTIRQ
+-------------
+
+Do all of the following:
+
 1.	Avoid sending scheduler IPIs to the CPU to be de-jittered,
 	for example, ensure that at most one runnable kthread is present
 	on that CPU.  If a thread that expects to run on the de-jittered
@@ -120,7 +171,12 @@ SCHED_SOFTIRQ: Do all of the following:
 	forcing both kernel threads and interrupts to execute elsewhere.
 	This further reduces the number of scheduler-clock interrupts
 	received by the de-jittered CPU.
-HRTIMER_SOFTIRQ:  Do all of the following:
+
+HRTIMER_SOFTIRQ
+---------------
+
+Do all of the following:
+
 1.	To the extent possible, keep the CPU out of the kernel when it
 	is non-idle.  For example, avoid system calls and force both
 	kernel threads and interrupts to execute elsewhere.
@@ -131,9 +187,15 @@ HRTIMER_SOFTIRQ:  Do all of the following:
 	back online.  Once you have onlined the CPUs in question, do not
 	offline any other CPUs, because doing so could force the timer
 	back onto one of the CPUs in question.
-RCU_SOFTIRQ:  Do at least one of the following:
+
+RCU_SOFTIRQ
+-----------
+
+Do at least one of the following:
+
 1.	Offload callbacks and keep the CPU in either dyntick-idle or
 	adaptive-ticks state by doing all of the following:
+
 	a.	CONFIG_NO_HZ_FULL=y and ensure that the CPU to be
 		de-jittered is marked as an adaptive-ticks CPU using the
 		"nohz_full=" boot parameter.  Bind the rcuo kthreads to
@@ -142,8 +204,10 @@ RCU_SOFTIRQ:  Do at least one of the following:
 		when it is non-idle, for example, by avoiding system
 		calls and by forcing both kernel threads and interrupts
 		to execute elsewhere.
+
 2.	Enable RCU to do its processing remotely via dyntick-idle by
 	doing all of the following:
+
 	a.	Build with CONFIG_NO_HZ=y and CONFIG_RCU_FAST_NO_HZ=y.
 	b.	Ensure that the CPU goes idle frequently, allowing other
 		CPUs to detect that it has passed through an RCU quiescent
@@ -155,15 +219,20 @@ RCU_SOFTIRQ:  Do at least one of the following:
 		calls and by forcing both kernel threads and interrupts
 		to execute elsewhere.
 
-Name: kworker/%u:%d%s (cpu, id, priority)
-Purpose: Execute workqueue requests
+Name:
+  kworker/%u:%d%s (cpu, id, priority)
+
+Purpose:
+  Execute workqueue requests
+
 To reduce its OS jitter, do any of the following:
+
 1.	Run your workload at a real-time priority, which will allow
 	preempting the kworker daemons.
 2.	A given workqueue can be made visible in the sysfs filesystem
 	by passing the WQ_SYSFS to that workqueue's alloc_workqueue().
 	Such a workqueue can be confined to a given subset of the
-	CPUs using the /sys/devices/virtual/workqueue/*/cpumask sysfs
+	CPUs using the ``/sys/devices/virtual/workqueue/*/cpumask`` sysfs
 	files.	The set of WQ_SYSFS workqueues can be displayed using
 	"ls sys/devices/virtual/workqueue".  That said, the workqueues
 	maintainer would like to caution people against indiscriminately
@@ -173,6 +242,7 @@ To reduce its OS jitter, do any of the following:
 	to remove it, even if its addition was a mistake.
 3.	Do any of the following needed to avoid jitter that your
 	application cannot tolerate:
+
 	a.	Build your kernel with CONFIG_SLUB=y rather than
 		CONFIG_SLAB=y, thus avoiding the slab allocator's periodic
 		use of each CPU's workqueues to run its cache_reap()
@@ -186,6 +256,7 @@ To reduce its OS jitter, do any of the following:
 		be able to build your kernel with CONFIG_CPU_FREQ=n to
 		avoid the CPU-frequency governor periodically running
 		on each CPU, including cs_dbs_timer() and od_dbs_timer().
+
 		WARNING:  Please check your CPU specifications to
 		make sure that this is safe on your particular system.
 	d.	As of v3.18, Christoph Lameter's on-demand vmstat workers
@@ -222,9 +293,14 @@ To reduce its OS jitter, do any of the following:
 		CONFIG_PMAC_RACKMETER=n to disable the CPU-meter,
 		avoiding OS jitter from rackmeter_do_timer().
 
-Name: rcuc/%u
-Purpose: Execute RCU callbacks in CONFIG_RCU_BOOST=y kernels.
+Name:
+  rcuc/%u
+
+Purpose:
+  Execute RCU callbacks in CONFIG_RCU_BOOST=y kernels.
+
 To reduce its OS jitter, do at least one of the following:
+
 1.	Build the kernel with CONFIG_PREEMPT=n.  This prevents these
 	kthreads from being created in the first place, and also obviates
 	the need for RCU priority boosting.  This approach is feasible
@@ -244,9 +320,14 @@ To reduce its OS jitter, do at least one of the following:
 	CPU, again preventing the rcuc/%u kthreads from having any work
 	to do.
 
-Name: rcuob/%d, rcuop/%d, and rcuos/%d
-Purpose: Offload RCU callbacks from the corresponding CPU.
+Name:
+  rcuob/%d, rcuop/%d, and rcuos/%d
+
+Purpose:
+  Offload RCU callbacks from the corresponding CPU.
+
 To reduce its OS jitter, do at least one of the following:
+
 1.	Use affinity, cgroups, or other mechanism to force these kthreads
 	to execute on some other CPU.
 2.	Build with CONFIG_RCU_NOCB_CPU=n, which will prevent these
@@ -254,9 +335,14 @@ To reduce its OS jitter, do at least one of the following:
 	note that this will not eliminate OS jitter, but will instead
 	shift it to RCU_SOFTIRQ.
 
-Name: watchdog/%u
-Purpose: Detect software lockups on each CPU.
+Name:
+  watchdog/%u
+
+Purpose:
+  Detect software lockups on each CPU.
+
 To reduce its OS jitter, do at least one of the following:
+
 1.	Build with CONFIG_LOCKUP_DETECTOR=n, which will prevent these
 	kthreads from being created in the first place.
 2.	Boot with "nosoftlockup=0", which will also prevent these kthreads
diff --git a/Documentation/kobject.txt b/Documentation/kobject.txt
index 1be59a3a521c..fc9485d79061 100644
--- a/Documentation/kobject.txt
+++ b/Documentation/kobject.txt
@@ -1,13 +1,13 @@
+=====================================================================
 Everything you never wanted to know about kobjects, ksets, and ktypes
+=====================================================================
 
-Greg Kroah-Hartman <gregkh@linuxfoundation.org>
+:Author: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
+:Last updated: December 19, 2007
 
 Based on an original article by Jon Corbet for lwn.net written October 1,
 2003 and located at http://lwn.net/Articles/51437/
 
-Last updated December 19, 2007
-
-
 Part of the difficulty in understanding the driver model - and the kobject
 abstraction upon which it is built - is that there is no obvious starting
 place. Dealing with kobjects requires understanding a few different types,
@@ -47,6 +47,7 @@ approach will be taken, so we'll go back to kobjects.
 
 
 Embedding kobjects
+==================
 
 It is rare for kernel code to create a standalone kobject, with one major
 exception explained below.  Instead, kobjects are used to control access to
@@ -65,7 +66,7 @@ their own, but are invariably found embedded in the larger objects of
 interest.)
 
 So, for example, the UIO code in drivers/uio/uio.c has a structure that
-defines the memory region associated with a uio device:
+defines the memory region associated with a uio device::
 
     struct uio_map {
 	struct kobject kobj;
@@ -77,7 +78,7 @@ just a matter of using the kobj member.  Code that works with kobjects will
 often have the opposite problem, however: given a struct kobject pointer,
 what is the pointer to the containing structure?  You must avoid tricks
 (such as assuming that the kobject is at the beginning of the structure)
-and, instead, use the container_of() macro, found in <linux/kernel.h>:
+and, instead, use the container_of() macro, found in <linux/kernel.h>::
 
     container_of(pointer, type, member)
 
@@ -90,13 +91,13 @@ where:
 The return value from container_of() is a pointer to the corresponding
 container type. So, for example, a pointer "kp" to a struct kobject
 embedded *within* a struct uio_map could be converted to a pointer to the
-*containing* uio_map structure with:
+*containing* uio_map structure with::
 
     struct uio_map *u_map = container_of(kp, struct uio_map, kobj);
 
 For convenience, programmers often define a simple macro for "back-casting"
 kobject pointers to the containing type.  Exactly this happens in the
-earlier drivers/uio/uio.c, as you can see here:
+earlier drivers/uio/uio.c, as you can see here::
 
     struct uio_map {
         struct kobject kobj;
@@ -106,23 +107,25 @@ earlier drivers/uio/uio.c, as you can see here:
     #define to_map(map) container_of(map, struct uio_map, kobj)
 
 where the macro argument "map" is a pointer to the struct kobject in
-question.  That macro is subsequently invoked with:
+question.  That macro is subsequently invoked with::
 
     struct uio_map *map = to_map(kobj);
 
 
 Initialization of kobjects
+==========================
 
 Code which creates a kobject must, of course, initialize that object. Some
-of the internal fields are setup with a (mandatory) call to kobject_init():
+of the internal fields are setup with a (mandatory) call to kobject_init()::
 
     void kobject_init(struct kobject *kobj, struct kobj_type *ktype);
 
 The ktype is required for a kobject to be created properly, as every kobject
 must have an associated kobj_type.  After calling kobject_init(), to
-register the kobject with sysfs, the function kobject_add() must be called:
+register the kobject with sysfs, the function kobject_add() must be called::
 
-    int kobject_add(struct kobject *kobj, struct kobject *parent, const char *fmt, ...);
+    int kobject_add(struct kobject *kobj, struct kobject *parent,
+		    const char *fmt, ...);
 
 This sets up the parent of the kobject and the name for the kobject
 properly.  If the kobject is to be associated with a specific kset,
@@ -133,7 +136,7 @@ kset itself.
 
 As the name of the kobject is set when it is added to the kernel, the name
 of the kobject should never be manipulated directly.  If you must change
-the name of the kobject, call kobject_rename():
+the name of the kobject, call kobject_rename()::
 
     int kobject_rename(struct kobject *kobj, const char *new_name);
 
@@ -146,12 +149,12 @@ is being removed.  If your code needs to call this function, it is
 incorrect and needs to be fixed.
 
 To properly access the name of the kobject, use the function
-kobject_name():
+kobject_name()::
 
     const char *kobject_name(const struct kobject * kobj);
 
 There is a helper function to both initialize and add the kobject to the
-kernel at the same time, called surprisingly enough kobject_init_and_add():
+kernel at the same time, called surprisingly enough kobject_init_and_add()::
 
     int kobject_init_and_add(struct kobject *kobj, struct kobj_type *ktype,
                              struct kobject *parent, const char *fmt, ...);
@@ -161,10 +164,11 @@ kobject_add() functions described above.
 
 
 Uevents
+=======
 
 After a kobject has been registered with the kobject core, you need to
 announce to the world that it has been created.  This can be done with a
-call to kobject_uevent():
+call to kobject_uevent()::
 
     int kobject_uevent(struct kobject *kobj, enum kobject_action action);
 
@@ -180,11 +184,12 @@ hand.
 
 
 Reference counts
+================
 
 One of the key functions of a kobject is to serve as a reference counter
 for the object in which it is embedded. As long as references to the object
 exist, the object (and the code which supports it) must continue to exist.
-The low-level functions for manipulating a kobject's reference counts are:
+The low-level functions for manipulating a kobject's reference counts are::
 
     struct kobject *kobject_get(struct kobject *kobj);
     void kobject_put(struct kobject *kobj);
@@ -209,21 +214,24 @@ file Documentation/kref.txt in the Linux kernel source tree.
 
 
 Creating "simple" kobjects
+==========================
 
 Sometimes all that a developer wants is a way to create a simple directory
 in the sysfs hierarchy, and not have to mess with the whole complication of
 ksets, show and store functions, and other details.  This is the one
 exception where a single kobject should be created.  To create such an
-entry, use the function:
+entry, use the function::
 
     struct kobject *kobject_create_and_add(char *name, struct kobject *parent);
 
 This function will create a kobject and place it in sysfs in the location
 underneath the specified parent kobject.  To create simple attributes
-associated with this kobject, use:
+associated with this kobject, use::
 
     int sysfs_create_file(struct kobject *kobj, struct attribute *attr);
-or
+
+or::
+
     int sysfs_create_group(struct kobject *kobj, struct attribute_group *grp);
 
 Both types of attributes used here, with a kobject that has been created
@@ -236,6 +244,7 @@ implementation of a simple kobject and attributes.
 
 
 ktypes and release methods
+==========================
 
 One important thing still missing from the discussion is what happens to a
 kobject when its reference count reaches zero. The code which created the
@@ -257,7 +266,7 @@ is good practice to always use kobject_put() after kobject_init() to avoid
 errors creeping in.
 
 This notification is done through a kobject's release() method. Usually
-such a method has a form like:
+such a method has a form like::
 
     void my_object_release(struct kobject *kobj)
     {
@@ -281,7 +290,7 @@ leak in the kobject core, which makes people unhappy.
 
 Interestingly, the release() method is not stored in the kobject itself;
 instead, it is associated with the ktype. So let us introduce struct
-kobj_type:
+kobj_type::
 
     struct kobj_type {
 	    void (*release)(struct kobject *kobj);
@@ -306,6 +315,7 @@ automatically created for any kobject that is registered with this ktype.
 
 
 ksets
+=====
 
 A kset is merely a collection of kobjects that want to be associated with
 each other.  There is no restriction that they be of the same ktype, but be
@@ -335,13 +345,16 @@ kobject) in their parent.
 
 As a kset contains a kobject within it, it should always be dynamically
 created and never declared statically or on the stack.  To create a new
-kset use:
+kset use::
+
   struct kset *kset_create_and_add(const char *name,
 				   struct kset_uevent_ops *u,
 				   struct kobject *parent);
 
-When you are finished with the kset, call:
+When you are finished with the kset, call::
+
   void kset_unregister(struct kset *kset);
+
 to destroy it.  This removes the kset from sysfs and decrements its reference
 count.  When the reference count goes to zero, the kset will be released.
 Because other references to the kset may still exist, the release may happen
@@ -351,14 +364,14 @@ An example of using a kset can be seen in the
 samples/kobject/kset-example.c file in the kernel tree.
 
 If a kset wishes to control the uevent operations of the kobjects
-associated with it, it can use the struct kset_uevent_ops to handle it:
+associated with it, it can use the struct kset_uevent_ops to handle it::
 
-struct kset_uevent_ops {
+  struct kset_uevent_ops {
         int (*filter)(struct kset *kset, struct kobject *kobj);
         const char *(*name)(struct kset *kset, struct kobject *kobj);
         int (*uevent)(struct kset *kset, struct kobject *kobj,
                       struct kobj_uevent_env *env);
-};
+  };
 
 
 The filter function allows a kset to prevent a uevent from being emitted to
@@ -386,6 +399,7 @@ added below the parent kobject.
 
 
 Kobject removal
+===============
 
 After a kobject has been registered with the kobject core successfully, it
 must be cleaned up when the code is finished with it.  To do that, call
@@ -409,6 +423,7 @@ called, and the objects in the former circle release each other.
 
 
 Example code to copy from
+=========================
 
 For a more complete example of using ksets and kobjects properly, see the
 example programs samples/kobject/{kobject-example.c,kset-example.c},
diff --git a/Documentation/kprobes.txt b/Documentation/kprobes.txt
index 1f6d45abfe42..2335715bf471 100644
--- a/Documentation/kprobes.txt
+++ b/Documentation/kprobes.txt
@@ -1,30 +1,36 @@
-Title	: Kernel Probes (Kprobes)
-Authors	: Jim Keniston <jkenisto@us.ibm.com>
-	: Prasanna S Panchamukhi <prasanna.panchamukhi@gmail.com>
-	: Masami Hiramatsu <mhiramat@redhat.com>
-
-CONTENTS
-
-1. Concepts: Kprobes, Jprobes, Return Probes
-2. Architectures Supported
-3. Configuring Kprobes
-4. API Reference
-5. Kprobes Features and Limitations
-6. Probe Overhead
-7. TODO
-8. Kprobes Example
-9. Jprobes Example
-10. Kretprobes Example
-Appendix A: The kprobes debugfs interface
-Appendix B: The kprobes sysctl interface
-
-1. Concepts: Kprobes, Jprobes, Return Probes
+=======================
+Kernel Probes (Kprobes)
+=======================
+
+:Author: Jim Keniston <jkenisto@us.ibm.com>
+:Author: Prasanna S Panchamukhi <prasanna.panchamukhi@gmail.com>
+:Author: Masami Hiramatsu <mhiramat@redhat.com>
+
+.. CONTENTS
+
+  1. Concepts: Kprobes, Jprobes, Return Probes
+  2. Architectures Supported
+  3. Configuring Kprobes
+  4. API Reference
+  5. Kprobes Features and Limitations
+  6. Probe Overhead
+  7. TODO
+  8. Kprobes Example
+  9. Jprobes Example
+  10. Kretprobes Example
+  Appendix A: The kprobes debugfs interface
+  Appendix B: The kprobes sysctl interface
+
+Concepts: Kprobes, Jprobes, Return Probes
+=========================================
 
 Kprobes enables you to dynamically break into any kernel routine and
 collect debugging and performance information non-disruptively. You
-can trap at almost any kernel code address(*), specifying a handler
+can trap at almost any kernel code address [1]_, specifying a handler
 routine to be invoked when the breakpoint is hit.
-(*: some parts of the kernel code can not be trapped, see 1.5 Blacklist)
+
+.. [1] some parts of the kernel code can not be trapped, see
+       :ref:`kprobes_blacklist`)
 
 There are currently three types of probes: kprobes, jprobes, and
 kretprobes (also called return probes).  A kprobe can be inserted
@@ -40,8 +46,8 @@ registration function such as register_kprobe() specifies where
 the probe is to be inserted and what handler is to be called when
 the probe is hit.
 
-There are also register_/unregister_*probes() functions for batch
-registration/unregistration of a group of *probes. These functions
+There are also ``register_/unregister_*probes()`` functions for batch
+registration/unregistration of a group of ``*probes``. These functions
 can speed up unregistration process when you have to unregister
 a lot of probes at once.
 
@@ -51,9 +57,10 @@ things that you'll need to know in order to make the best use of
 Kprobes -- e.g., the difference between a pre_handler and
 a post_handler, and how to use the maxactive and nmissed fields of
 a kretprobe.  But if you're in a hurry to start using Kprobes, you
-can skip ahead to section 2.
+can skip ahead to :ref:`kprobes_archs_supported`.
 
-1.1 How Does a Kprobe Work?
+How Does a Kprobe Work?
+-----------------------
 
 When a kprobe is registered, Kprobes makes a copy of the probed
 instruction and replaces the first byte(s) of the probed instruction
@@ -75,7 +82,8 @@ After the instruction is single-stepped, Kprobes executes the
 "post_handler," if any, that is associated with the kprobe.
 Execution then continues with the instruction following the probepoint.
 
-1.2 How Does a Jprobe Work?
+How Does a Jprobe Work?
+-----------------------
 
 A jprobe is implemented using a kprobe that is placed on a function's
 entry point.  It employs a simple mirroring principle to allow
@@ -113,9 +121,11 @@ more than eight function arguments, an argument of more than sixteen
 bytes, or more than 64 bytes of argument data, depending on
 architecture).
 
-1.3 Return Probes
+Return Probes
+-------------
 
-1.3.1 How Does a Return Probe Work?
+How Does a Return Probe Work?
+^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
 When you call register_kretprobe(), Kprobes establishes a kprobe at
 the entry to the function.  When the probed function is called and this
@@ -150,7 +160,8 @@ zero when the return probe is registered, and is incremented every
 time the probed function is entered but there is no kretprobe_instance
 object available for establishing the return probe.
 
-1.3.2 Kretprobe entry-handler
+Kretprobe entry-handler
+^^^^^^^^^^^^^^^^^^^^^^^
 
 Kretprobes also provides an optional user-specified handler which runs
 on function entry. This handler is specified by setting the entry_handler
@@ -174,7 +185,10 @@ In case probed function is entered but there is no kretprobe_instance
 object available, then in addition to incrementing the nmissed count,
 the user entry_handler invocation is also skipped.
 
-1.4 How Does Jump Optimization Work?
+.. _kprobes_jump_optimization:
+
+How Does Jump Optimization Work?
+--------------------------------
 
 If your kernel is built with CONFIG_OPTPROBES=y (currently this flag
 is automatically set 'y' on x86/x86-64, non-preemptive kernel) and
@@ -182,53 +196,60 @@ the "debug.kprobes_optimization" kernel parameter is set to 1 (see
 sysctl(8)), Kprobes tries to reduce probe-hit overhead by using a jump
 instruction instead of a breakpoint instruction at each probepoint.
 
-1.4.1 Init a Kprobe
+Init a Kprobe
+^^^^^^^^^^^^^
 
 When a probe is registered, before attempting this optimization,
 Kprobes inserts an ordinary, breakpoint-based kprobe at the specified
 address. So, even if it's not possible to optimize this particular
 probepoint, there'll be a probe there.
 
-1.4.2 Safety Check
+Safety Check
+^^^^^^^^^^^^
 
 Before optimizing a probe, Kprobes performs the following safety checks:
 
 - Kprobes verifies that the region that will be replaced by the jump
-instruction (the "optimized region") lies entirely within one function.
-(A jump instruction is multiple bytes, and so may overlay multiple
-instructions.)
+  instruction (the "optimized region") lies entirely within one function.
+  (A jump instruction is multiple bytes, and so may overlay multiple
+  instructions.)
 
 - Kprobes analyzes the entire function and verifies that there is no
-jump into the optimized region.  Specifically:
+  jump into the optimized region.  Specifically:
+
   - the function contains no indirect jump;
   - the function contains no instruction that causes an exception (since
-  the fixup code triggered by the exception could jump back into the
-  optimized region -- Kprobes checks the exception tables to verify this);
-  and
+    the fixup code triggered by the exception could jump back into the
+    optimized region -- Kprobes checks the exception tables to verify this);
   - there is no near jump to the optimized region (other than to the first
-  byte).
+    byte).
 
 - For each instruction in the optimized region, Kprobes verifies that
-the instruction can be executed out of line.
+  the instruction can be executed out of line.
 
-1.4.3 Preparing Detour Buffer
+Preparing Detour Buffer
+^^^^^^^^^^^^^^^^^^^^^^^
 
 Next, Kprobes prepares a "detour" buffer, which contains the following
 instruction sequence:
+
 - code to push the CPU's registers (emulating a breakpoint trap)
 - a call to the trampoline code which calls user's probe handlers.
 - code to restore registers
 - the instructions from the optimized region
 - a jump back to the original execution path.
 
-1.4.4 Pre-optimization
+Pre-optimization
+^^^^^^^^^^^^^^^^
 
 After preparing the detour buffer, Kprobes verifies that none of the
 following situations exist:
+
 - The probe has either a break_handler (i.e., it's a jprobe) or a
-post_handler.
+  post_handler.
 - Other instructions in the optimized region are probed.
 - The probe is disabled.
+
 In any of the above cases, Kprobes won't start optimizing the probe.
 Since these are temporary situations, Kprobes tries to start
 optimizing it again if the situation is changed.
@@ -240,21 +261,23 @@ Kprobes returns control to the original instruction path by setting
 the CPU's instruction pointer to the copied code in the detour buffer
 -- thus at least avoiding the single-step.
 
-1.4.5 Optimization
+Optimization
+^^^^^^^^^^^^
 
 The Kprobe-optimizer doesn't insert the jump instruction immediately;
 rather, it calls synchronize_sched() for safety first, because it's
 possible for a CPU to be interrupted in the middle of executing the
-optimized region(*).  As you know, synchronize_sched() can ensure
+optimized region [3]_.  As you know, synchronize_sched() can ensure
 that all interruptions that were active when synchronize_sched()
 was called are done, but only if CONFIG_PREEMPT=n.  So, this version
-of kprobe optimization supports only kernels with CONFIG_PREEMPT=n.(**)
+of kprobe optimization supports only kernels with CONFIG_PREEMPT=n [4]_.
 
 After that, the Kprobe-optimizer calls stop_machine() to replace
 the optimized region with a jump instruction to the detour buffer,
 using text_poke_smp().
 
-1.4.6 Unoptimization
+Unoptimization
+^^^^^^^^^^^^^^
 
 When an optimized kprobe is unregistered, disabled, or blocked by
 another kprobe, it will be unoptimized.  If this happens before
@@ -263,15 +286,15 @@ optimized list.  If the optimization has been done, the jump is
 replaced with the original code (except for an int3 breakpoint in
 the first byte) by using text_poke_smp().
 
-(*)Please imagine that the 2nd instruction is interrupted and then
-the optimizer replaces the 2nd instruction with the jump *address*
-while the interrupt handler is running. When the interrupt
-returns to original address, there is no valid instruction,
-and it causes an unexpected result.
+.. [3] Please imagine that the 2nd instruction is interrupted and then
+   the optimizer replaces the 2nd instruction with the jump *address*
+   while the interrupt handler is running. When the interrupt
+   returns to original address, there is no valid instruction,
+   and it causes an unexpected result.
 
-(**)This optimization-safety checking may be replaced with the
-stop-machine method that ksplice uses for supporting a CONFIG_PREEMPT=y
-kernel.
+.. [4] This optimization-safety checking may be replaced with the
+   stop-machine method that ksplice uses for supporting a CONFIG_PREEMPT=y
+   kernel.
 
 NOTE for geeks:
 The jump optimization changes the kprobe's pre_handler behavior.
@@ -280,11 +303,17 @@ path by changing regs->ip and returning 1.  However, when the probe
 is optimized, that modification is ignored.  Thus, if you want to
 tweak the kernel's execution path, you need to suppress optimization,
 using one of the following techniques:
+
 - Specify an empty function for the kprobe's post_handler or break_handler.
- or
+
+or
+
 - Execute 'sysctl -w debug.kprobes_optimization=n'
 
-1.5 Blacklist
+.. _kprobes_blacklist:
+
+Blacklist
+---------
 
 Kprobes can probe most of the kernel except itself. This means
 that there are some functions where kprobes cannot probe. Probing
@@ -297,7 +326,10 @@ to specify a blacklisted function.
 Kprobes checks the given probe address against the blacklist and
 rejects registering it, if the given address is in the blacklist.
 
-2. Architectures Supported
+.. _kprobes_archs_supported:
+
+Architectures Supported
+=======================
 
 Kprobes, jprobes, and return probes are implemented on the following
 architectures:
@@ -312,7 +344,8 @@ architectures:
 - mips
 - s390
 
-3. Configuring Kprobes
+Configuring Kprobes
+===================
 
 When configuring the kernel using make menuconfig/xconfig/oldconfig,
 ensure that CONFIG_KPROBES is set to "y". Under "General setup", look
@@ -331,7 +364,8 @@ it useful to "Compile the kernel with debug info" (CONFIG_DEBUG_INFO),
 so you can use "objdump -d -l vmlinux" to see the source-to-object
 code mapping.
 
-4. API Reference
+API Reference
+=============
 
 The Kprobes API includes a "register" function and an "unregister"
 function for each type of probe. The API also includes "register_*probes"
@@ -340,10 +374,13 @@ Here are terse, mini-man-page specifications for these functions and
 the associated probe handlers that you'll write. See the files in the
 samples/kprobes/ sub-directory for examples.
 
-4.1 register_kprobe
+register_kprobe
+---------------
+
+::
 
-#include <linux/kprobes.h>
-int register_kprobe(struct kprobe *kp);
+	#include <linux/kprobes.h>
+	int register_kprobe(struct kprobe *kp);
 
 Sets a breakpoint at the address kp->addr.  When the breakpoint is
 hit, Kprobes calls kp->pre_handler.  After the probed instruction
@@ -354,61 +391,68 @@ kp->fault_handler.  Any or all handlers can be NULL. If kp->flags
 is set KPROBE_FLAG_DISABLED, that kp will be registered but disabled,
 so, its handlers aren't hit until calling enable_kprobe(kp).
 
-NOTE:
-1. With the introduction of the "symbol_name" field to struct kprobe,
-the probepoint address resolution will now be taken care of by the kernel.
-The following will now work:
+.. note::
+
+   1. With the introduction of the "symbol_name" field to struct kprobe,
+      the probepoint address resolution will now be taken care of by the kernel.
+      The following will now work::
 
 	kp.symbol_name = "symbol_name";
 
-(64-bit powerpc intricacies such as function descriptors are handled
-transparently)
+      (64-bit powerpc intricacies such as function descriptors are handled
+      transparently)
 
-2. Use the "offset" field of struct kprobe if the offset into the symbol
-to install a probepoint is known. This field is used to calculate the
-probepoint.
+   2. Use the "offset" field of struct kprobe if the offset into the symbol
+      to install a probepoint is known. This field is used to calculate the
+      probepoint.
 
-3. Specify either the kprobe "symbol_name" OR the "addr". If both are
-specified, kprobe registration will fail with -EINVAL.
+   3. Specify either the kprobe "symbol_name" OR the "addr". If both are
+      specified, kprobe registration will fail with -EINVAL.
 
-4. With CISC architectures (such as i386 and x86_64), the kprobes code
-does not validate if the kprobe.addr is at an instruction boundary.
-Use "offset" with caution.
+   4. With CISC architectures (such as i386 and x86_64), the kprobes code
+      does not validate if the kprobe.addr is at an instruction boundary.
+      Use "offset" with caution.
 
 register_kprobe() returns 0 on success, or a negative errno otherwise.
 
-User's pre-handler (kp->pre_handler):
-#include <linux/kprobes.h>
-#include <linux/ptrace.h>
-int pre_handler(struct kprobe *p, struct pt_regs *regs);
+User's pre-handler (kp->pre_handler)::
+
+	#include <linux/kprobes.h>
+	#include <linux/ptrace.h>
+	int pre_handler(struct kprobe *p, struct pt_regs *regs);
 
 Called with p pointing to the kprobe associated with the breakpoint,
 and regs pointing to the struct containing the registers saved when
 the breakpoint was hit.  Return 0 here unless you're a Kprobes geek.
 
-User's post-handler (kp->post_handler):
-#include <linux/kprobes.h>
-#include <linux/ptrace.h>
-void post_handler(struct kprobe *p, struct pt_regs *regs,
-	unsigned long flags);
+User's post-handler (kp->post_handler)::
+
+	#include <linux/kprobes.h>
+	#include <linux/ptrace.h>
+	void post_handler(struct kprobe *p, struct pt_regs *regs,
+			  unsigned long flags);
 
 p and regs are as described for the pre_handler.  flags always seems
 to be zero.
 
-User's fault-handler (kp->fault_handler):
-#include <linux/kprobes.h>
-#include <linux/ptrace.h>
-int fault_handler(struct kprobe *p, struct pt_regs *regs, int trapnr);
+User's fault-handler (kp->fault_handler)::
+
+	#include <linux/kprobes.h>
+	#include <linux/ptrace.h>
+	int fault_handler(struct kprobe *p, struct pt_regs *regs, int trapnr);
 
 p and regs are as described for the pre_handler.  trapnr is the
 architecture-specific trap number associated with the fault (e.g.,
 on i386, 13 for a general protection fault or 14 for a page fault).
 Returns 1 if it successfully handled the exception.
 
-4.2 register_jprobe
+register_jprobe
+---------------
 
-#include <linux/kprobes.h>
-int register_jprobe(struct jprobe *jp)
+::
+
+	#include <linux/kprobes.h>
+	int register_jprobe(struct jprobe *jp)
 
 Sets a breakpoint at the address jp->kp.addr, which must be the address
 of the first instruction of a function.  When the breakpoint is hit,
@@ -423,10 +467,13 @@ declaration must match.
 
 register_jprobe() returns 0 on success, or a negative errno otherwise.
 
-4.3 register_kretprobe
+register_kretprobe
+------------------
+
+::
 
-#include <linux/kprobes.h>
-int register_kretprobe(struct kretprobe *rp);
+	#include <linux/kprobes.h>
+	int register_kretprobe(struct kretprobe *rp);
 
 Establishes a return probe for the function whose address is
 rp->kp.addr.  When that function returns, Kprobes calls rp->handler.
@@ -436,14 +483,17 @@ register_kretprobe(); see "How Does a Return Probe Work?" for details.
 register_kretprobe() returns 0 on success, or a negative errno
 otherwise.
 
-User's return-probe handler (rp->handler):
-#include <linux/kprobes.h>
-#include <linux/ptrace.h>
-int kretprobe_handler(struct kretprobe_instance *ri, struct pt_regs *regs);
+User's return-probe handler (rp->handler)::
+
+	#include <linux/kprobes.h>
+	#include <linux/ptrace.h>
+	int kretprobe_handler(struct kretprobe_instance *ri,
+			      struct pt_regs *regs);
 
 regs is as described for kprobe.pre_handler.  ri points to the
 kretprobe_instance object, of which the following fields may be
 of interest:
+
 - ret_addr: the return address
 - rp: points to the corresponding kretprobe object
 - task: points to the corresponding task struct
@@ -456,74 +506,94 @@ the architecture's ABI.
 
 The handler's return value is currently ignored.
 
-4.4 unregister_*probe
+unregister_*probe
+------------------
+
+::
 
-#include <linux/kprobes.h>
-void unregister_kprobe(struct kprobe *kp);
-void unregister_jprobe(struct jprobe *jp);
-void unregister_kretprobe(struct kretprobe *rp);
+	#include <linux/kprobes.h>
+	void unregister_kprobe(struct kprobe *kp);
+	void unregister_jprobe(struct jprobe *jp);
+	void unregister_kretprobe(struct kretprobe *rp);
 
 Removes the specified probe.  The unregister function can be called
 at any time after the probe has been registered.
 
-NOTE:
-If the functions find an incorrect probe (ex. an unregistered probe),
-they clear the addr field of the probe.
+.. note::
+
+   If the functions find an incorrect probe (ex. an unregistered probe),
+   they clear the addr field of the probe.
+
+register_*probes
+----------------
 
-4.5 register_*probes
+::
 
-#include <linux/kprobes.h>
-int register_kprobes(struct kprobe **kps, int num);
-int register_kretprobes(struct kretprobe **rps, int num);
-int register_jprobes(struct jprobe **jps, int num);
+	#include <linux/kprobes.h>
+	int register_kprobes(struct kprobe **kps, int num);
+	int register_kretprobes(struct kretprobe **rps, int num);
+	int register_jprobes(struct jprobe **jps, int num);
 
 Registers each of the num probes in the specified array.  If any
 error occurs during registration, all probes in the array, up to
 the bad probe, are safely unregistered before the register_*probes
 function returns.
-- kps/rps/jps: an array of pointers to *probe data structures
+
+- kps/rps/jps: an array of pointers to ``*probe`` data structures
 - num: the number of the array entries.
 
-NOTE:
-You have to allocate(or define) an array of pointers and set all
-of the array entries before using these functions.
+.. note::
+
+   You have to allocate(or define) an array of pointers and set all
+   of the array entries before using these functions.
 
-4.6 unregister_*probes
+unregister_*probes
+------------------
 
-#include <linux/kprobes.h>
-void unregister_kprobes(struct kprobe **kps, int num);
-void unregister_kretprobes(struct kretprobe **rps, int num);
-void unregister_jprobes(struct jprobe **jps, int num);
+::
+
+	#include <linux/kprobes.h>
+	void unregister_kprobes(struct kprobe **kps, int num);
+	void unregister_kretprobes(struct kretprobe **rps, int num);
+	void unregister_jprobes(struct jprobe **jps, int num);
 
 Removes each of the num probes in the specified array at once.
 
-NOTE:
-If the functions find some incorrect probes (ex. unregistered
-probes) in the specified array, they clear the addr field of those
-incorrect probes. However, other probes in the array are
-unregistered correctly.
+.. note::
+
+   If the functions find some incorrect probes (ex. unregistered
+   probes) in the specified array, they clear the addr field of those
+   incorrect probes. However, other probes in the array are
+   unregistered correctly.
 
-4.7 disable_*probe
+disable_*probe
+--------------
 
-#include <linux/kprobes.h>
-int disable_kprobe(struct kprobe *kp);
-int disable_kretprobe(struct kretprobe *rp);
-int disable_jprobe(struct jprobe *jp);
+::
 
-Temporarily disables the specified *probe. You can enable it again by using
+	#include <linux/kprobes.h>
+	int disable_kprobe(struct kprobe *kp);
+	int disable_kretprobe(struct kretprobe *rp);
+	int disable_jprobe(struct jprobe *jp);
+
+Temporarily disables the specified ``*probe``. You can enable it again by using
 enable_*probe(). You must specify the probe which has been registered.
 
-4.8 enable_*probe
+enable_*probe
+-------------
+
+::
 
-#include <linux/kprobes.h>
-int enable_kprobe(struct kprobe *kp);
-int enable_kretprobe(struct kretprobe *rp);
-int enable_jprobe(struct jprobe *jp);
+	#include <linux/kprobes.h>
+	int enable_kprobe(struct kprobe *kp);
+	int enable_kretprobe(struct kretprobe *rp);
+	int enable_jprobe(struct jprobe *jp);
 
-Enables *probe which has been disabled by disable_*probe(). You must specify
+Enables ``*probe`` which has been disabled by disable_*probe(). You must specify
 the probe which has been registered.
 
-5. Kprobes Features and Limitations
+Kprobes Features and Limitations
+================================
 
 Kprobes allows multiple probes at the same address.  Currently,
 however, there cannot be multiple jprobes on the same function at
@@ -538,7 +608,7 @@ are discussed in this section.
 
 The register_*probe functions will return -EINVAL if you attempt
 to install a probe in the code that implements Kprobes (mostly
-kernel/kprobes.c and arch/*/kernel/kprobes.c, but also functions such
+kernel/kprobes.c and ``arch/*/kernel/kprobes.c``, but also functions such
 as do_page_fault and notifier_call_chain).
 
 If you install a probe in an inline-able function, Kprobes makes
@@ -602,19 +672,21 @@ explain it, we introduce some terminology. Imagine a 3-instruction
 sequence consisting of a two 2-byte instructions and one 3-byte
 instruction.
 
-        IA
-         |
-[-2][-1][0][1][2][3][4][5][6][7]
-        [ins1][ins2][  ins3 ]
-	[<-     DCR       ->]
-	   [<- JTPR ->]
+::
 
-ins1: 1st Instruction
-ins2: 2nd Instruction
-ins3: 3rd Instruction
-IA:  Insertion Address
-JTPR: Jump Target Prohibition Region
-DCR: Detoured Code Region
+		IA
+		|
+	[-2][-1][0][1][2][3][4][5][6][7]
+		[ins1][ins2][  ins3 ]
+		[<-     DCR       ->]
+		[<- JTPR ->]
+
+	ins1: 1st Instruction
+	ins2: 2nd Instruction
+	ins3: 3rd Instruction
+	IA:  Insertion Address
+	JTPR: Jump Target Prohibition Region
+	DCR: Detoured Code Region
 
 The instructions in DCR are copied to the out-of-line buffer
 of the kprobe, because the bytes in DCR are replaced by
@@ -628,7 +700,8 @@ d) DCR must not straddle the border between functions.
 Anyway, these limitations are checked by the in-kernel instruction
 decoder, so you don't need to worry about that.
 
-6. Probe Overhead
+Probe Overhead
+==============
 
 On a typical CPU in use in 2005, a kprobe hit takes 0.5 to 1.0
 microseconds to process.  Specifically, a benchmark that hits the same
@@ -638,70 +711,80 @@ return-probe hit typically takes 50-75% longer than a kprobe hit.
 When you have a return probe set on a function, adding a kprobe at
 the entry to that function adds essentially no overhead.
 
-Here are sample overhead figures (in usec) for different architectures.
-k = kprobe; j = jprobe; r = return probe; kr = kprobe + return probe
-on same function; jr = jprobe + return probe on same function
+Here are sample overhead figures (in usec) for different architectures::
+
+  k = kprobe; j = jprobe; r = return probe; kr = kprobe + return probe
+  on same function; jr = jprobe + return probe on same function::
 
-i386: Intel Pentium M, 1495 MHz, 2957.31 bogomips
-k = 0.57 usec; j = 1.00; r = 0.92; kr = 0.99; jr = 1.40
+  i386: Intel Pentium M, 1495 MHz, 2957.31 bogomips
+  k = 0.57 usec; j = 1.00; r = 0.92; kr = 0.99; jr = 1.40
 
-x86_64: AMD Opteron 246, 1994 MHz, 3971.48 bogomips
-k = 0.49 usec; j = 0.76; r = 0.80; kr = 0.82; jr = 1.07
+  x86_64: AMD Opteron 246, 1994 MHz, 3971.48 bogomips
+  k = 0.49 usec; j = 0.76; r = 0.80; kr = 0.82; jr = 1.07
 
-ppc64: POWER5 (gr), 1656 MHz (SMT disabled, 1 virtual CPU per physical CPU)
-k = 0.77 usec; j = 1.31; r = 1.26; kr = 1.45; jr = 1.99
+  ppc64: POWER5 (gr), 1656 MHz (SMT disabled, 1 virtual CPU per physical CPU)
+  k = 0.77 usec; j = 1.31; r = 1.26; kr = 1.45; jr = 1.99
 
-6.1 Optimized Probe Overhead
+Optimized Probe Overhead
+------------------------
 
 Typically, an optimized kprobe hit takes 0.07 to 0.1 microseconds to
-process. Here are sample overhead figures (in usec) for x86 architectures.
-k = unoptimized kprobe, b = boosted (single-step skipped), o = optimized kprobe,
-r = unoptimized kretprobe, rb = boosted kretprobe, ro = optimized kretprobe.
+process. Here are sample overhead figures (in usec) for x86 architectures::
 
-i386: Intel(R) Xeon(R) E5410, 2.33GHz, 4656.90 bogomips
-k = 0.80 usec; b = 0.33; o = 0.05; r = 1.10; rb = 0.61; ro = 0.33
+  k = unoptimized kprobe, b = boosted (single-step skipped), o = optimized kprobe,
+  r = unoptimized kretprobe, rb = boosted kretprobe, ro = optimized kretprobe.
 
-x86-64: Intel(R) Xeon(R) E5410, 2.33GHz, 4656.90 bogomips
-k = 0.99 usec; b = 0.43; o = 0.06; r = 1.24; rb = 0.68; ro = 0.30
+  i386: Intel(R) Xeon(R) E5410, 2.33GHz, 4656.90 bogomips
+  k = 0.80 usec; b = 0.33; o = 0.05; r = 1.10; rb = 0.61; ro = 0.33
 
-7. TODO
+  x86-64: Intel(R) Xeon(R) E5410, 2.33GHz, 4656.90 bogomips
+  k = 0.99 usec; b = 0.43; o = 0.06; r = 1.24; rb = 0.68; ro = 0.30
+
+TODO
+====
 
 a. SystemTap (http://sourceware.org/systemtap): Provides a simplified
-programming interface for probe-based instrumentation.  Try it out.
+   programming interface for probe-based instrumentation.  Try it out.
 b. Kernel return probes for sparc64.
 c. Support for other architectures.
 d. User-space probes.
 e. Watchpoint probes (which fire on data references).
 
-8. Kprobes Example
+Kprobes Example
+===============
 
 See samples/kprobes/kprobe_example.c
 
-9. Jprobes Example
+Jprobes Example
+===============
 
 See samples/kprobes/jprobe_example.c
 
-10. Kretprobes Example
+Kretprobes Example
+==================
 
 See samples/kprobes/kretprobe_example.c
 
 For additional information on Kprobes, refer to the following URLs:
-http://www-106.ibm.com/developerworks/library/l-kprobes.html?ca=dgr-lnxw42Kprobe
-http://www.redhat.com/magazine/005mar05/features/kprobes/
-http://www-users.cs.umn.edu/~boutcher/kprobes/
-http://www.linuxsymposium.org/2006/linuxsymposium_procv2.pdf (pages 101-115)
+
+- http://www-106.ibm.com/developerworks/library/l-kprobes.html?ca=dgr-lnxw42Kprobe
+- http://www.redhat.com/magazine/005mar05/features/kprobes/
+- http://www-users.cs.umn.edu/~boutcher/kprobes/
+- http://www.linuxsymposium.org/2006/linuxsymposium_procv2.pdf (pages 101-115)
 
 
-Appendix A: The kprobes debugfs interface
+The kprobes debugfs interface
+=============================
+
 
 With recent kernels (> 2.6.20) the list of registered kprobes is visible
 under the /sys/kernel/debug/kprobes/ directory (assuming debugfs is mounted at //sys/kernel/debug).
 
-/sys/kernel/debug/kprobes/list: Lists all registered probes on the system
+/sys/kernel/debug/kprobes/list: Lists all registered probes on the system::
 
-c015d71a  k  vfs_read+0x0
-c011a316  j  do_fork+0x0
-c03dedc5  r  tcp_v4_rcv+0x0
+	c015d71a  k  vfs_read+0x0
+	c011a316  j  do_fork+0x0
+	c03dedc5  r  tcp_v4_rcv+0x0
 
 The first column provides the kernel address where the probe is inserted.
 The second column identifies the type of probe (k - kprobe, r - kretprobe
@@ -725,17 +808,19 @@ change each probe's disabling state. This means that disabled kprobes (marked
 [DISABLED]) will be not enabled if you turn ON all kprobes by this knob.
 
 
-Appendix B: The kprobes sysctl interface
+The kprobes sysctl interface
+============================
 
 /proc/sys/debug/kprobes-optimization: Turn kprobes optimization ON/OFF.
 
 When CONFIG_OPTPROBES=y, this sysctl interface appears and it provides
 a knob to globally and forcibly turn jump optimization (see section
-1.4) ON or OFF. By default, jump optimization is allowed (ON).
-If you echo "0" to this file or set "debug.kprobes_optimization" to
-0 via sysctl, all optimized probes will be unoptimized, and any new
-probes registered after that will not be optimized.  Note that this
-knob *changes* the optimized state. This means that optimized probes
-(marked [OPTIMIZED]) will be unoptimized ([OPTIMIZED] tag will be
+:ref:`kprobes_jump_optimization`) ON or OFF. By default, jump optimization
+is allowed (ON). If you echo "0" to this file or set
+"debug.kprobes_optimization" to 0 via sysctl, all optimized probes will be
+unoptimized, and any new probes registered after that will not be optimized.
+
+Note that this knob *changes* the optimized state. This means that optimized
+probes (marked [OPTIMIZED]) will be unoptimized ([OPTIMIZED] tag will be
 removed). If the knob is turned on, they will be optimized again.
 
diff --git a/Documentation/kref.txt b/Documentation/kref.txt
index d26a27ca964d..3af384156d7e 100644
--- a/Documentation/kref.txt
+++ b/Documentation/kref.txt
@@ -1,24 +1,42 @@
+===================================================
+Adding reference counters (krefs) to kernel objects
+===================================================
+
+:Author: Corey Minyard <minyard@acm.org>
+:Author: Thomas Hellstrom <thellstrom@vmware.com>
+
+A lot of this was lifted from Greg Kroah-Hartman's 2004 OLS paper and
+presentation on krefs, which can be found at:
+
+  - http://www.kroah.com/linux/talks/ols_2004_kref_paper/Reprint-Kroah-Hartman-OLS2004.pdf
+  - http://www.kroah.com/linux/talks/ols_2004_kref_talk/
+
+Introduction
+============
 
 krefs allow you to add reference counters to your objects.  If you
 have objects that are used in multiple places and passed around, and
 you don't have refcounts, your code is almost certainly broken.  If
 you want refcounts, krefs are the way to go.
 
-To use a kref, add one to your data structures like:
+To use a kref, add one to your data structures like::
 
-struct my_data
-{
+    struct my_data
+    {
 	.
 	.
 	struct kref refcount;
 	.
 	.
-};
+    };
 
 The kref can occur anywhere within the data structure.
 
+Initialization
+==============
+
 You must initialize the kref after you allocate it.  To do this, call
-kref_init as so:
+kref_init as so::
 
      struct my_data *data;
 
@@ -29,18 +47,25 @@ kref_init as so:
 
 This sets the refcount in the kref to 1.
 
+Kref rules
+==========
+
 Once you have an initialized kref, you must follow the following
 rules:
 
 1) If you make a non-temporary copy of a pointer, especially if
    it can be passed to another thread of execution, you must
-   increment the refcount with kref_get() before passing it off:
+   increment the refcount with kref_get() before passing it off::
+
        kref_get(&data->refcount);
+
    If you already have a valid pointer to a kref-ed structure (the
    refcount cannot go to zero) you may do this without a lock.
 
-2) When you are done with a pointer, you must call kref_put():
+2) When you are done with a pointer, you must call kref_put()::
+
        kref_put(&data->refcount, data_release);
+
    If this is the last reference to the pointer, the release
    routine will be called.  If the code never tries to get
    a valid pointer to a kref-ed structure without already
@@ -53,25 +78,25 @@ rules:
    structure must remain valid during the kref_get().
 
 For example, if you allocate some data and then pass it to another
-thread to process:
+thread to process::
 
-void data_release(struct kref *ref)
-{
+    void data_release(struct kref *ref)
+    {
 	struct my_data *data = container_of(ref, struct my_data, refcount);
 	kfree(data);
-}
+    }
 
-void more_data_handling(void *cb_data)
-{
+    void more_data_handling(void *cb_data)
+    {
 	struct my_data *data = cb_data;
 	.
 	. do stuff with data here
 	.
 	kref_put(&data->refcount, data_release);
-}
+    }
 
-int my_data_handler(void)
-{
+    int my_data_handler(void)
+    {
 	int rv = 0;
 	struct my_data *data;
 	struct task_struct *task;
@@ -91,10 +116,10 @@ int my_data_handler(void)
 	.
 	. do stuff with data here
 	.
- out:
+    out:
 	kref_put(&data->refcount, data_release);
 	return rv;
-}
+    }
 
 This way, it doesn't matter what order the two threads handle the
 data, the kref_put() handles knowing when the data is not referenced
@@ -104,7 +129,7 @@ put needs no lock because nothing tries to get the data without
 already holding a pointer.
 
 Note that the "before" in rule 1 is very important.  You should never
-do something like:
+do something like::
 
 	task = kthread_run(more_data_handling, data, "more_data_handling");
 	if (task == ERR_PTR(-ENOMEM)) {
@@ -124,14 +149,14 @@ bad style.  Don't do it.
 There are some situations where you can optimize the gets and puts.
 For instance, if you are done with an object and enqueuing it for
 something else or passing it off to something else, there is no reason
-to do a get then a put:
+to do a get then a put::
 
 	/* Silly extra get and put */
 	kref_get(&obj->ref);
 	enqueue(obj);
 	kref_put(&obj->ref, obj_cleanup);
 
-Just do the enqueue.  A comment about this is always welcome:
+Just do the enqueue.  A comment about this is always welcome::
 
 	enqueue(obj);
 	/* We are done with obj, so we pass our refcount off
@@ -142,109 +167,99 @@ instance, you have a list of items that are each kref-ed, and you wish
 to get the first one.  You can't just pull the first item off the list
 and kref_get() it.  That violates rule 3 because you are not already
 holding a valid pointer.  You must add a mutex (or some other lock).
-For instance:
-
-static DEFINE_MUTEX(mutex);
-static LIST_HEAD(q);
-struct my_data
-{
-	struct kref      refcount;
-	struct list_head link;
-};
-
-static struct my_data *get_entry()
-{
-	struct my_data *entry = NULL;
-	mutex_lock(&mutex);
-	if (!list_empty(&q)) {
-		entry = container_of(q.next, struct my_data, link);
-		kref_get(&entry->refcount);
+For instance::
+
+	static DEFINE_MUTEX(mutex);
+	static LIST_HEAD(q);
+	struct my_data
+	{
+		struct kref      refcount;
+		struct list_head link;
+	};
+
+	static struct my_data *get_entry()
+	{
+		struct my_data *entry = NULL;
+		mutex_lock(&mutex);
+		if (!list_empty(&q)) {
+			entry = container_of(q.next, struct my_data, link);
+			kref_get(&entry->refcount);
+		}
+		mutex_unlock(&mutex);
+		return entry;
 	}
-	mutex_unlock(&mutex);
-	return entry;
-}
 
-static void release_entry(struct kref *ref)
-{
-	struct my_data *entry = container_of(ref, struct my_data, refcount);
+	static void release_entry(struct kref *ref)
+	{
+		struct my_data *entry = container_of(ref, struct my_data, refcount);
 
-	list_del(&entry->link);
-	kfree(entry);
-}
+		list_del(&entry->link);
+		kfree(entry);
+	}
 
-static void put_entry(struct my_data *entry)
-{
-	mutex_lock(&mutex);
-	kref_put(&entry->refcount, release_entry);
-	mutex_unlock(&mutex);
-}
+	static void put_entry(struct my_data *entry)
+	{
+		mutex_lock(&mutex);
+		kref_put(&entry->refcount, release_entry);
+		mutex_unlock(&mutex);
+	}
 
 The kref_put() return value is useful if you do not want to hold the
 lock during the whole release operation.  Say you didn't want to call
 kfree() with the lock held in the example above (since it is kind of
-pointless to do so).  You could use kref_put() as follows:
+pointless to do so).  You could use kref_put() as follows::
 
-static void release_entry(struct kref *ref)
-{
-	/* All work is done after the return from kref_put(). */
-}
+	static void release_entry(struct kref *ref)
+	{
+		/* All work is done after the return from kref_put(). */
+	}
 
-static void put_entry(struct my_data *entry)
-{
-	mutex_lock(&mutex);
-	if (kref_put(&entry->refcount, release_entry)) {
-		list_del(&entry->link);
-		mutex_unlock(&mutex);
-		kfree(entry);
-	} else
-		mutex_unlock(&mutex);
-}
+	static void put_entry(struct my_data *entry)
+	{
+		mutex_lock(&mutex);
+		if (kref_put(&entry->refcount, release_entry)) {
+			list_del(&entry->link);
+			mutex_unlock(&mutex);
+			kfree(entry);
+		} else
+			mutex_unlock(&mutex);
+	}
 
 This is really more useful if you have to call other routines as part
 of the free operations that could take a long time or might claim the
 same lock.  Note that doing everything in the release routine is still
 preferred as it is a little neater.
 
-
-Corey Minyard <minyard@acm.org>
-
-A lot of this was lifted from Greg Kroah-Hartman's 2004 OLS paper and
-presentation on krefs, which can be found at:
-  http://www.kroah.com/linux/talks/ols_2004_kref_paper/Reprint-Kroah-Hartman-OLS2004.pdf
-and:
-  http://www.kroah.com/linux/talks/ols_2004_kref_talk/
-
-
 The above example could also be optimized using kref_get_unless_zero() in
-the following way:
-
-static struct my_data *get_entry()
-{
-	struct my_data *entry = NULL;
-	mutex_lock(&mutex);
-	if (!list_empty(&q)) {
-		entry = container_of(q.next, struct my_data, link);
-		if (!kref_get_unless_zero(&entry->refcount))
-			entry = NULL;
+the following way::
+
+	static struct my_data *get_entry()
+	{
+		struct my_data *entry = NULL;
+		mutex_lock(&mutex);
+		if (!list_empty(&q)) {
+			entry = container_of(q.next, struct my_data, link);
+			if (!kref_get_unless_zero(&entry->refcount))
+				entry = NULL;
+		}
+		mutex_unlock(&mutex);
+		return entry;
 	}
-	mutex_unlock(&mutex);
-	return entry;
-}
 
-static void release_entry(struct kref *ref)
-{
-	struct my_data *entry = container_of(ref, struct my_data, refcount);
+	static void release_entry(struct kref *ref)
+	{
+		struct my_data *entry = container_of(ref, struct my_data, refcount);
 
-	mutex_lock(&mutex);
-	list_del(&entry->link);
-	mutex_unlock(&mutex);
-	kfree(entry);
-}
+		mutex_lock(&mutex);
+		list_del(&entry->link);
+		mutex_unlock(&mutex);
+		kfree(entry);
+	}
 
-static void put_entry(struct my_data *entry)
-{
-	kref_put(&entry->refcount, release_entry);
-}
+	static void put_entry(struct my_data *entry)
+	{
+		kref_put(&entry->refcount, release_entry);
+	}
 
 Which is useful to remove the mutex lock around kref_put() in put_entry(), but
 it's important that kref_get_unless_zero is enclosed in the same critical
@@ -254,51 +269,51 @@ Note that it is illegal to use kref_get_unless_zero without checking its
 return value. If you are sure (by already having a valid pointer) that
 kref_get_unless_zero() will return true, then use kref_get() instead.
 
-The function kref_get_unless_zero also makes it possible to use rcu
-locking for lookups in the above example:
+Krefs and RCU
+=============
 
-struct my_data
-{
-	struct rcu_head rhead;
-	.
-	struct kref refcount;
-	.
-	.
-};
-
-static struct my_data *get_entry_rcu()
-{
-	struct my_data *entry = NULL;
-	rcu_read_lock();
-	if (!list_empty(&q)) {
-		entry = container_of(q.next, struct my_data, link);
-		if (!kref_get_unless_zero(&entry->refcount))
-			entry = NULL;
+The function kref_get_unless_zero also makes it possible to use rcu
+locking for lookups in the above example::
+
+	struct my_data
+	{
+		struct rcu_head rhead;
+		.
+		struct kref refcount;
+		.
+		.
+	};
+
+	static struct my_data *get_entry_rcu()
+	{
+		struct my_data *entry = NULL;
+		rcu_read_lock();
+		if (!list_empty(&q)) {
+			entry = container_of(q.next, struct my_data, link);
+			if (!kref_get_unless_zero(&entry->refcount))
+				entry = NULL;
+		}
+		rcu_read_unlock();
+		return entry;
 	}
-	rcu_read_unlock();
-	return entry;
-}
 
-static void release_entry_rcu(struct kref *ref)
-{
-	struct my_data *entry = container_of(ref, struct my_data, refcount);
+	static void release_entry_rcu(struct kref *ref)
+	{
+		struct my_data *entry = container_of(ref, struct my_data, refcount);
 
-	mutex_lock(&mutex);
-	list_del_rcu(&entry->link);
-	mutex_unlock(&mutex);
-	kfree_rcu(entry, rhead);
-}
+		mutex_lock(&mutex);
+		list_del_rcu(&entry->link);
+		mutex_unlock(&mutex);
+		kfree_rcu(entry, rhead);
+	}
 
-static void put_entry(struct my_data *entry)
-{
-	kref_put(&entry->refcount, release_entry_rcu);
-}
+	static void put_entry(struct my_data *entry)
+	{
+		kref_put(&entry->refcount, release_entry_rcu);
+	}
 
 But note that the struct kref member needs to remain in valid memory for a
 rcu grace period after release_entry_rcu was called. That can be accomplished
 by using kfree_rcu(entry, rhead) as done above, or by calling synchronize_rcu()
 before using kfree, but note that synchronize_rcu() may sleep for a
 substantial amount of time.
-
-
-Thomas Hellstrom <thellstrom@vmware.com>
diff --git a/Documentation/ldm.txt b/Documentation/ldm.txt
index 4f80edd14d0a..12c571368e73 100644
--- a/Documentation/ldm.txt
+++ b/Documentation/ldm.txt
@@ -1,9 +1,9 @@
+==========================================
+LDM - Logical Disk Manager (Dynamic Disks)
+==========================================
 
-            LDM - Logical Disk Manager (Dynamic Disks)
-            ------------------------------------------
-
-Originally Written by FlatCap - Richard Russon <ldm@flatcap.org>.
-Last Updated by Anton Altaparmakov on 30 March 2007 for Windows Vista.
+:Author: Originally Written by FlatCap - Richard Russon <ldm@flatcap.org>.
+:Last Updated: Anton Altaparmakov on 30 March 2007 for Windows Vista.
 
 Overview
 --------
@@ -37,24 +37,36 @@ Example
 -------
 
 Below we have a 50MiB disk, divided into seven partitions.
-N.B.  The missing 1MiB at the end of the disk is where the LDM database is
-      stored.
-
-  Device | Offset Bytes  Sectors  MiB | Size   Bytes  Sectors  MiB
-  -------+----------------------------+---------------------------
-  hda    |            0        0    0 |     52428800   102400   50
-  hda1   |     51380224   100352   49 |      1048576     2048    1
-  hda2   |        16384       32    0 |      6979584    13632    6
-  hda3   |      6995968    13664    6 |     10485760    20480   10
-  hda4   |     17481728    34144   16 |      4194304     8192    4
-  hda5   |     21676032    42336   20 |      5242880    10240    5
-  hda6   |     26918912    52576   25 |     10485760    20480   10
-  hda7   |     37404672    73056   35 |     13959168    27264   13
+
+.. note::
+
+   The missing 1MiB at the end of the disk is where the LDM database is
+   stored.
+
++-------++--------------+---------+-----++--------------+---------+----+
+|Device || Offset Bytes | Sectors | MiB || Size   Bytes | Sectors | MiB|
++=======++==============+=========+=====++==============+=========+====+
+|hda    ||            0 |       0 |   0 ||     52428800 |  102400 |  50|
++-------++--------------+---------+-----++--------------+---------+----+
+|hda1   ||     51380224 |  100352 |  49 ||      1048576 |    2048 |   1|
++-------++--------------+---------+-----++--------------+---------+----+
+|hda2   ||        16384 |      32 |   0 ||      6979584 |   13632 |   6|
++-------++--------------+---------+-----++--------------+---------+----+
+|hda3   ||      6995968 |   13664 |   6 ||     10485760 |   20480 |  10|
++-------++--------------+---------+-----++--------------+---------+----+
+|hda4   ||     17481728 |   34144 |  16 ||      4194304 |    8192 |   4|
++-------++--------------+---------+-----++--------------+---------+----+
+|hda5   ||     21676032 |   42336 |  20 ||      5242880 |   10240 |   5|
++-------++--------------+---------+-----++--------------+---------+----+
+|hda6   ||     26918912 |   52576 |  25 ||     10485760 |   20480 |  10|
++-------++--------------+---------+-----++--------------+---------+----+
+|hda7   ||     37404672 |   73056 |  35 ||     13959168 |   27264 |  13|
++-------++--------------+---------+-----++--------------+---------+----+
 
 The LDM Database may not store the partitions in the order that they appear on
 disk, but the driver will sort them.
 
-When Linux boots, you will see something like:
+When Linux boots, you will see something like::
 
   hda: 102400 sectors w/32KiB Cache, CHS=50/64/32
   hda: [LDM] hda1 hda2 hda3 hda4 hda5 hda6 hda7
@@ -65,13 +77,13 @@ Compiling LDM Support
 
 To enable LDM, choose the following two options: 
 
-  "Advanced partition selection" CONFIG_PARTITION_ADVANCED
-  "Windows Logical Disk Manager (Dynamic Disk) support" CONFIG_LDM_PARTITION
+  - "Advanced partition selection" CONFIG_PARTITION_ADVANCED
+  - "Windows Logical Disk Manager (Dynamic Disk) support" CONFIG_LDM_PARTITION
 
 If you believe the driver isn't working as it should, you can enable the extra
 debugging code.  This will produce a LOT of output.  The option is:
 
-  "Windows LDM extra logging" CONFIG_LDM_DEBUG
+  - "Windows LDM extra logging" CONFIG_LDM_DEBUG
 
 N.B. The partition code cannot be compiled as a module.
 
diff --git a/Documentation/lockup-watchdogs.txt b/Documentation/lockup-watchdogs.txt
index c8b8378513d6..290840c160af 100644
--- a/Documentation/lockup-watchdogs.txt
+++ b/Documentation/lockup-watchdogs.txt
@@ -30,7 +30,8 @@ timeout is set through the confusingly named "kernel.panic" sysctl),
 to cause the system to reboot automatically after a specified amount
 of time.
 
-=== Implementation ===
+Implementation
+==============
 
 The soft and hard lockup detectors are built on top of the hrtimer and
 perf subsystems, respectively. A direct consequence of this is that,
diff --git a/Documentation/lzo.txt b/Documentation/lzo.txt
index 285c54f66779..6fa6a93d0949 100644
--- a/Documentation/lzo.txt
+++ b/Documentation/lzo.txt
@@ -1,8 +1,9 @@
-
+===========================================================
 LZO stream format as understood by Linux's LZO decompressor
 ===========================================================
 
 Introduction
+============
 
   This is not a specification. No specification seems to be publicly available
   for the LZO stream format. This document describes what input format the LZO
@@ -14,12 +15,13 @@ Introduction
   for future bug reports.
 
 Description
+===========
 
   The stream is composed of a series of instructions, operands, and data. The
   instructions consist in a few bits representing an opcode, and bits forming
   the operands for the instruction, whose size and position depend on the
   opcode and on the number of literals copied by previous instruction. The
-  operands are used to indicate :
+  operands are used to indicate:
 
     - a distance when copying data from the dictionary (past output buffer)
     - a length (number of bytes to copy from dictionary)
@@ -38,7 +40,7 @@ Description
   of bits in the operand. If the number of bits isn't enough to represent the
   length, up to 255 may be added in increments by consuming more bytes with a
   rate of at most 255 per extra byte (thus the compression ratio cannot exceed
-  around 255:1). The variable length encoding using #bits is always the same :
+  around 255:1). The variable length encoding using #bits is always the same::
 
        length = byte & ((1 << #bits) - 1)
        if (!length) {
@@ -67,15 +69,19 @@ Description
   instruction may encode this distance (0001HLLL), it takes one LE16 operand
   for the distance, thus requiring 3 bytes.
 
-  IMPORTANT NOTE : in the code some length checks are missing because certain
-  instructions are called under the assumption that a certain number of bytes
-  follow because it has already been guaranteed before parsing the instructions.
-  They just have to "refill" this credit if they consume extra bytes. This is
-  an implementation design choice independent on the algorithm or encoding.
+  .. important::
+
+     In the code some length checks are missing because certain instructions
+     are called under the assumption that a certain number of bytes follow
+     because it has already been guaranteed before parsing the instructions.
+     They just have to "refill" this credit if they consume extra bytes. This
+     is an implementation design choice independent on the algorithm or
+     encoding.
 
 Byte sequences
+==============
 
-  First byte encoding :
+  First byte encoding::
 
       0..17   : follow regular instruction encoding, see below. It is worth
                 noting that codes 16 and 17 will represent a block copy from
@@ -91,7 +97,7 @@ Byte sequences
                 state = 4 [ don't copy extra literals ]
                 skip byte
 
-  Instruction encoding :
+  Instruction encoding::
 
       0 0 0 0 X X X X  (0..15)
         Depends on the number of literals copied by the last instruction.
@@ -156,6 +162,7 @@ Byte sequences
            distance = (H << 3) + D + 1
 
 Authors
+=======
 
   This document was written by Willy Tarreau <w@1wt.eu> on 2014/07/19 during an
   analysis of the decompression code available in Linux 3.16-rc5. The code is
diff --git a/Documentation/mailbox.txt b/Documentation/mailbox.txt
index 7ed371c85204..0ed95009cc30 100644
--- a/Documentation/mailbox.txt
+++ b/Documentation/mailbox.txt
@@ -1,7 +1,10 @@
-		The Common Mailbox Framework
-		Jassi Brar <jaswinder.singh@linaro.org>
+============================
+The Common Mailbox Framework
+============================
 
- This document aims to help developers write client and controller
+:Author: Jassi Brar <jaswinder.singh@linaro.org>
+
+This document aims to help developers write client and controller
 drivers for the API. But before we start, let us note that the
 client (especially) and controller drivers are likely going to be
 very platform specific because the remote firmware is likely to be
@@ -13,14 +16,17 @@ similar copies of code written for each platform. Having said that,
 nothing prevents the remote f/w to also be Linux based and use the
 same api there. However none of that helps us locally because we only
 ever deal at client's protocol level.
- Some of the choices made during implementation are the result of this
+
+Some of the choices made during implementation are the result of this
 peculiarity of this "common" framework.
 
 
 
-	Part 1 - Controller Driver (See include/linux/mailbox_controller.h)
+Controller Driver (See include/linux/mailbox_controller.h)
+==========================================================
+
 
- Allocate mbox_controller and the array of mbox_chan.
+Allocate mbox_controller and the array of mbox_chan.
 Populate mbox_chan_ops, except peek_data() all are mandatory.
 The controller driver might know a message has been consumed
 by the remote by getting an IRQ or polling some hardware flag
@@ -30,91 +36,94 @@ the controller driver should set via 'txdone_irq' or 'txdone_poll'
 or neither.
 
 
-	Part 2 - Client Driver (See include/linux/mailbox_client.h)
+Client Driver (See include/linux/mailbox_client.h)
+==================================================
 
- The client might want to operate in blocking mode (synchronously
+
+The client might want to operate in blocking mode (synchronously
 send a message through before returning) or non-blocking/async mode (submit
 a message and a callback function to the API and return immediately).
 
-
-struct demo_client {
-	struct mbox_client cl;
-	struct mbox_chan *mbox;
-	struct completion c;
-	bool async;
-	/* ... */
-};
-
-/*
- * This is the handler for data received from remote. The behaviour is purely
- * dependent upon the protocol. This is just an example.
- */
-static void message_from_remote(struct mbox_client *cl, void *mssg)
-{
-	struct demo_client *dc = container_of(cl, struct demo_client, cl);
-	if (dc->async) {
-		if (is_an_ack(mssg)) {
-			/* An ACK to our last sample sent */
-			return; /* Or do something else here */
-		} else { /* A new message from remote */
-			queue_req(mssg);
+::
+
+	struct demo_client {
+		struct mbox_client cl;
+		struct mbox_chan *mbox;
+		struct completion c;
+		bool async;
+		/* ... */
+	};
+
+	/*
+	* This is the handler for data received from remote. The behaviour is purely
+	* dependent upon the protocol. This is just an example.
+	*/
+	static void message_from_remote(struct mbox_client *cl, void *mssg)
+	{
+		struct demo_client *dc = container_of(cl, struct demo_client, cl);
+		if (dc->async) {
+			if (is_an_ack(mssg)) {
+				/* An ACK to our last sample sent */
+				return; /* Or do something else here */
+			} else { /* A new message from remote */
+				queue_req(mssg);
+			}
+		} else {
+			/* Remote f/w sends only ACK packets on this channel */
+			return;
 		}
-	} else {
-		/* Remote f/w sends only ACK packets on this channel */
-		return;
 	}
-}
-
-static void sample_sent(struct mbox_client *cl, void *mssg, int r)
-{
-	struct demo_client *dc = container_of(cl, struct demo_client, cl);
-	complete(&dc->c);
-}
-
-static void client_demo(struct platform_device *pdev)
-{
-	struct demo_client *dc_sync, *dc_async;
-	/* The controller already knows async_pkt and sync_pkt */
-	struct async_pkt ap;
-	struct sync_pkt sp;
-
-	dc_sync = kzalloc(sizeof(*dc_sync), GFP_KERNEL);
-	dc_async = kzalloc(sizeof(*dc_async), GFP_KERNEL);
-
-	/* Populate non-blocking mode client */
-	dc_async->cl.dev = &pdev->dev;
-	dc_async->cl.rx_callback = message_from_remote;
-	dc_async->cl.tx_done = sample_sent;
-	dc_async->cl.tx_block = false;
-	dc_async->cl.tx_tout = 0; /* doesn't matter here */
-	dc_async->cl.knows_txdone = false; /* depending upon protocol */
-	dc_async->async = true;
-	init_completion(&dc_async->c);
-
-	/* Populate blocking mode client */
-	dc_sync->cl.dev = &pdev->dev;
-	dc_sync->cl.rx_callback = message_from_remote;
-	dc_sync->cl.tx_done = NULL; /* operate in blocking mode */
-	dc_sync->cl.tx_block = true;
-	dc_sync->cl.tx_tout = 500; /* by half a second */
-	dc_sync->cl.knows_txdone = false; /* depending upon protocol */
-	dc_sync->async = false;
-
-	/* ASync mailbox is listed second in 'mboxes' property */
-	dc_async->mbox = mbox_request_channel(&dc_async->cl, 1);
-	/* Populate data packet */
-	/* ap.xxx = 123; etc */
-	/* Send async message to remote */
-	mbox_send_message(dc_async->mbox, &ap);
-
-	/* Sync mailbox is listed first in 'mboxes' property */
-	dc_sync->mbox = mbox_request_channel(&dc_sync->cl, 0);
-	/* Populate data packet */
-	/* sp.abc = 123; etc */
-	/* Send message to remote in blocking mode */
-	mbox_send_message(dc_sync->mbox, &sp);
-	/* At this point 'sp' has been sent */
-
-	/* Now wait for async chan to be done */
-	wait_for_completion(&dc_async->c);
-}
+
+	static void sample_sent(struct mbox_client *cl, void *mssg, int r)
+	{
+		struct demo_client *dc = container_of(cl, struct demo_client, cl);
+		complete(&dc->c);
+	}
+
+	static void client_demo(struct platform_device *pdev)
+	{
+		struct demo_client *dc_sync, *dc_async;
+		/* The controller already knows async_pkt and sync_pkt */
+		struct async_pkt ap;
+		struct sync_pkt sp;
+
+		dc_sync = kzalloc(sizeof(*dc_sync), GFP_KERNEL);
+		dc_async = kzalloc(sizeof(*dc_async), GFP_KERNEL);
+
+		/* Populate non-blocking mode client */
+		dc_async->cl.dev = &pdev->dev;
+		dc_async->cl.rx_callback = message_from_remote;
+		dc_async->cl.tx_done = sample_sent;
+		dc_async->cl.tx_block = false;
+		dc_async->cl.tx_tout = 0; /* doesn't matter here */
+		dc_async->cl.knows_txdone = false; /* depending upon protocol */
+		dc_async->async = true;
+		init_completion(&dc_async->c);
+
+		/* Populate blocking mode client */
+		dc_sync->cl.dev = &pdev->dev;
+		dc_sync->cl.rx_callback = message_from_remote;
+		dc_sync->cl.tx_done = NULL; /* operate in blocking mode */
+		dc_sync->cl.tx_block = true;
+		dc_sync->cl.tx_tout = 500; /* by half a second */
+		dc_sync->cl.knows_txdone = false; /* depending upon protocol */
+		dc_sync->async = false;
+
+		/* ASync mailbox is listed second in 'mboxes' property */
+		dc_async->mbox = mbox_request_channel(&dc_async->cl, 1);
+		/* Populate data packet */
+		/* ap.xxx = 123; etc */
+		/* Send async message to remote */
+		mbox_send_message(dc_async->mbox, &ap);
+
+		/* Sync mailbox is listed first in 'mboxes' property */
+		dc_sync->mbox = mbox_request_channel(&dc_sync->cl, 0);
+		/* Populate data packet */
+		/* sp.abc = 123; etc */
+		/* Send message to remote in blocking mode */
+		mbox_send_message(dc_sync->mbox, &sp);
+		/* At this point 'sp' has been sent */
+
+		/* Now wait for async chan to be done */
+		wait_for_completion(&dc_async->c);
+	}
diff --git a/Documentation/media/kapi/dtv-core.rst b/Documentation/media/kapi/dtv-core.rst
index ff86bf0abeae..de9a228aca8a 100644
--- a/Documentation/media/kapi/dtv-core.rst
+++ b/Documentation/media/kapi/dtv-core.rst
@@ -1,6 +1,31 @@
 Digital TV (DVB) devices
 ------------------------
 
+Digital TV devices are implemented by several different drivers:
+
+- A bridge driver that is responsible to talk with the bus where the other
+  devices are connected (PCI, USB, SPI), bind to the other drivers and
+  implement the digital demux logic (either in software or in hardware);
+
+- Frontend drivers that are usually implemented as two separate drivers:
+
+  - A tuner driver that implements the logic with commands the part of the
+    hardware with is reponsible to tune into a digital TV transponder or
+    physical channel. The output of a tuner is usually a baseband or
+    Intermediate Frequency (IF) signal;
+
+  - A demodulator driver (a.k.a "demod") that implements the logic with
+    commands the digital TV decoding hardware. The output of a demod is
+    a digital stream, with multiple audio, video and data channels typically
+    multiplexed using MPEG Transport Stream [#f1]_.
+
+On most hardware, the frontend drivers talk with the bridge driver using an
+I2C bus.
+
+.. [#f1] Some standards use TCP/IP for multiplexing data, like DVB-H (an
+   abandoned standard, not used anymore) and ATSC version 3.0 current
+   proposals. Currently, the DVB subsystem doesn't implement those standards.
+
 Digital TV Common functions
 ---------------------------
 
@@ -55,8 +80,141 @@ Digital TV Frontend
 The Digital TV Frontend kABI defines a driver-internal interface for
 registering low-level, hardware specific driver to a hardware independent
 frontend layer. It is only of interest for Digital TV device driver writers.
-The header file for this API is named dvb_frontend.h and located in
-drivers/media/dvb-core.
+The header file for this API is named ``dvb_frontend.h`` and located in
+``drivers/media/dvb-core``.
+
+Demodulator driver
+^^^^^^^^^^^^^^^^^^
+
+The demodulator driver is responsible to talk with the decoding part of the
+hardware. Such driver should implement :c:type:`dvb_frontend_ops`, with
+tells what type of digital TV standards are supported, and points to a
+series of functions that allow the DVB core to command the hardware via
+the code under ``drivers/media/dvb-core/dvb_frontend.c``.
+
+A typical example of such struct in a driver ``foo`` is::
+
+	static struct dvb_frontend_ops foo_ops = {
+		.delsys = { SYS_DVBT, SYS_DVBT2, SYS_DVBC_ANNEX_A },
+		.info = {
+			.name	= "foo DVB-T/T2/C driver",
+			.caps = FE_CAN_FEC_1_2 |
+				FE_CAN_FEC_2_3 |
+				FE_CAN_FEC_3_4 |
+				FE_CAN_FEC_5_6 |
+				FE_CAN_FEC_7_8 |
+				FE_CAN_FEC_AUTO |
+				FE_CAN_QPSK |
+				FE_CAN_QAM_16 |
+				FE_CAN_QAM_32 |
+				FE_CAN_QAM_64 |
+				FE_CAN_QAM_128 |
+				FE_CAN_QAM_256 |
+				FE_CAN_QAM_AUTO |
+				FE_CAN_TRANSMISSION_MODE_AUTO |
+				FE_CAN_GUARD_INTERVAL_AUTO |
+				FE_CAN_HIERARCHY_AUTO |
+				FE_CAN_MUTE_TS |
+				FE_CAN_2G_MODULATION,
+			.frequency_min = 42000000, /* Hz */
+			.frequency_max = 1002000000, /* Hz */
+			.symbol_rate_min = 870000,
+			.symbol_rate_max = 11700000
+		},
+		.init = foo_init,
+		.sleep = foo_sleep,
+		.release = foo_release,
+		.set_frontend = foo_set_frontend,
+		.get_frontend = foo_get_frontend,
+		.read_status = foo_get_status_and_stats,
+		.tune = foo_tune,
+		.i2c_gate_ctrl = foo_i2c_gate_ctrl,
+		.get_frontend_algo = foo_get_algo,
+	};
+
+A typical example of such struct in a driver ``bar`` meant to be used on
+Satellite TV reception is::
+
+	static const struct dvb_frontend_ops bar_ops = {
+		.delsys = { SYS_DVBS, SYS_DVBS2 },
+		.info = {
+			.name		= "Bar DVB-S/S2 demodulator",
+			.frequency_min	= 500000, /* KHz */
+			.frequency_max	= 2500000, /* KHz */
+			.frequency_stepsize	= 0,
+			.symbol_rate_min = 1000000,
+			.symbol_rate_max = 45000000,
+			.symbol_rate_tolerance = 500,
+			.caps = FE_CAN_INVERSION_AUTO |
+				FE_CAN_FEC_AUTO |
+				FE_CAN_QPSK,
+		},
+		.init = bar_init,
+		.sleep = bar_sleep,
+		.release = bar_release,
+		.set_frontend = bar_set_frontend,
+		.get_frontend = bar_get_frontend,
+		.read_status = bar_get_status_and_stats,
+		.i2c_gate_ctrl = bar_i2c_gate_ctrl,
+		.get_frontend_algo = bar_get_algo,
+		.tune = bar_tune,
+
+		/* Satellite-specific */
+		.diseqc_send_master_cmd = bar_send_diseqc_msg,
+		.diseqc_send_burst = bar_send_burst,
+		.set_tone = bar_set_tone,
+		.set_voltage = bar_set_voltage,
+	};
+
+.. note::
+
+   #) For satellite digital TV standards (DVB-S, DVB-S2, ISDB-S), the
+      frequencies are specified in kHz, while, for terrestrial and cable
+      standards, they're specified in Hz. Due to that, if the same frontend
+      supports both types, you'll need to have two separate
+      :c:type:`dvb_frontend_ops` structures, one for each standard.
+   #) The ``.i2c_gate_ctrl`` field is present only when the hardware has
+      allows controlling an I2C gate (either directly of via some GPIO pin),
+      in order to remove the tuner from the I2C bus after a channel is
+      tuned.
+   #) All new drivers should implement the
+      :ref:`DVBv5 statistics <dvbv5_stats>` via ``.read_status``.
+      Yet, there are a number of callbacks meant to get statistics for
+      signal strength, S/N and UCB. Those are there to provide backward
+      compatibility with legacy applications that don't support the DVBv5
+      API. Implementing those callbacks are optional. Those callbacks may be
+      removed in the future, after we have all existing drivers supporting
+      DVBv5 stats.
+   #) Other callbacks are required for satellite TV standards, in order to
+      control LNBf and DiSEqC: ``.diseqc_send_master_cmd``,
+      ``.diseqc_send_burst``, ``.set_tone``, ``.set_voltage``.
+
+.. |delta|   unicode:: U+00394
+
+The ``drivers/media/dvb-core/dvb_frontend.c`` has a kernel thread with is
+responsible for tuning the device. It supports multiple algoritms to
+detect a channel, as defined at enum :c:func:`dvbfe_algo`.
+
+The algorithm to be used is obtained via ``.get_frontend_algo``. If the driver
+doesn't fill its field at struct :c:type:`dvb_frontend_ops`, it will default to
+``DVBFE_ALGO_SW``, meaning that the dvb-core will do a zigzag when tuning,
+e. g. it will try first to use the specified center frequency ``f``,
+then, it will do ``f`` + |delta|, ``f`` - |delta|, ``f`` + 2 x |delta|,
+``f`` - 2 x |delta| and so on.
+
+If the hardware has internally a some sort of zigzag algorithm, you should
+define a ``.get_frontend_algo`` function that would return ``DVBFE_ALGO_HW``.
+
+.. note::
+
+   The core frontend support also supports
+   a third type (``DVBFE_ALGO_CUSTOM``), in order to allow the driver to
+   define its own hardware-assisted algorithm. Very few hardware need to
+   use it nowadays. Using ``DVBFE_ALGO_CUSTOM`` require to provide other
+   function callbacks at struct :c:type:`dvb_frontend_ops`.
+
+Attaching frontend driver to the bridge driver
+^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
 Before using the Digital TV frontend core, the bridge driver should attach
 the frontend demod, tuner and SEC devices and call
@@ -74,6 +232,287 @@ part of their handler for :c:type:`device_driver`.\ ``resume()``.
 
 A few other optional functions are provided to handle some special cases.
 
+.. _dvbv5_stats:
+
+Digital TV Frontend statistics
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+Introduction
+^^^^^^^^^^^^
+
+Digital TV frontends provide a range of
+:ref:`statistics <frontend-stat-properties>` meant to help tuning the device
+and measuring the quality of service.
+
+For each statistics measurement, the driver should set the type of scale used,
+or ``FE_SCALE_NOT_AVAILABLE`` if the statistics is not available on a given
+time. Drivers should also provide the number of statistics for each type.
+that's usually 1 for most video standards [#f2]_.
+
+Drivers should initialize each statistic counters with length and
+scale at its init code. For example, if the frontend provides signal
+strength, it should have, on its init code::
+
+	struct dtv_frontend_properties *c = &state->fe.dtv_property_cache;
+
+	c->strength.len = 1;
+	c->strength.stat[0].scale = FE_SCALE_NOT_AVAILABLE;
+
+And, when the statistics got updated, set the scale::
+
+	c->strength.stat[0].scale = FE_SCALE_DECIBEL;
+	c->strength.stat[0].uvalue = strength;
+
+.. [#f2] For ISDB-T, it may provide both a global statistics and a per-layer
+   set of statistics. On such cases, len should be equal to 4. The first
+   value corresponds to the global stat; the other ones to each layer, e. g.:
+
+   - c->cnr.stat[0] for global S/N carrier ratio,
+   - c->cnr.stat[1] for Layer A S/N carrier ratio,
+   - c->cnr.stat[2] for layer B S/N carrier ratio,
+   - c->cnr.stat[3] for layer C S/N carrier ratio.
+
+.. note:: Please prefer to use ``FE_SCALE_DECIBEL`` instead of
+   ``FE_SCALE_RELATIVE`` for signal strength and CNR measurements.
+
+Groups of statistics
+^^^^^^^^^^^^^^^^^^^^
+
+There are several groups of statistics currently supported:
+
+Signal strength (:ref:`DTV-STAT-SIGNAL-STRENGTH`)
+  - Measures the signal strength level at the analog part of the tuner or
+    demod.
+
+  - Typically obtained from the gain applied to the tuner and/or frontend
+    in order to detect the carrier. When no carrier is detected, the gain is
+    at the maximum value (so, strength is on its minimal).
+
+  - As the gain is visible through the set of registers that adjust the gain,
+    typically, this statistics is always available [#f3]_.
+
+  - Drivers should try to make it available all the times, as this statistics
+    can be used when adjusting an antenna position and to check for troubles
+    at the cabling.
+
+  .. [#f3] On a few devices, the gain keeps floating if no carrier.
+     On such devices, strength report should check first if carrier is
+     detected at the tuner (``FE_HAS_CARRIER``, see :c:type:`fe_status`),
+     and otherwise return the lowest possible value.
+
+Carrier Signal to Noise ratio (:ref:`DTV-STAT-CNR`)
+  - Signal to Noise ratio for the main carrier.
+
+  - Signal to Noise measurement depends on the device. On some hardware, is
+    available when the main carrier is detected. On those hardware, CNR
+    measurement usually comes from the tuner (e. g. after ``FE_HAS_CARRIER``,
+    see :c:type:`fe_status`).
+
+    On other devices, it requires inner FEC decoding,
+    as the frontend measures it indirectly from other parameters (e. g. after
+    ``FE_HAS_VITERBI``, see :c:type:`fe_status`).
+
+    Having it available after inner FEC is more common.
+
+Bit counts post-FEC (:ref:`DTV-STAT-POST-ERROR-BIT-COUNT` and :ref:`DTV-STAT-POST-TOTAL-BIT-COUNT`)
+  - Those counters measure the number of bits and bit errors errors after
+    the forward error correction (FEC) on the inner coding block
+    (after Viterbi, LDPC or other inner code).
+
+  - Due to its nature, those statistics depend on full coding lock
+    (e. g. after ``FE_HAS_SYNC`` or after ``FE_HAS_LOCK``,
+    see :c:type:`fe_status`).
+
+Bit counts pre-FEC (:ref:`DTV-STAT-PRE-ERROR-BIT-COUNT` and :ref:`DTV-STAT-PRE-TOTAL-BIT-COUNT`)
+  - Those counters measure the number of bits and bit errors errors before
+    the forward error correction (FEC) on the inner coding block
+    (before Viterbi, LDPC or other inner code).
+
+  - Not all frontends provide this kind of statistics.
+
+  - Due to its nature, those statistics depend on inner coding lock (e. g.
+    after ``FE_HAS_VITERBI``, see :c:type:`fe_status`).
+
+Block counts (:ref:`DTV-STAT-ERROR-BLOCK-COUNT` and :ref:`DTV-STAT-TOTAL-BLOCK-COUNT`)
+  - Those counters measure the number of blocks and block errors errors after
+    the forward error correction (FEC) on the inner coding block
+    (before Viterbi, LDPC or other inner code).
+
+  - Due to its nature, those statistics depend on full coding lock
+    (e. g. after ``FE_HAS_SYNC`` or after
+    ``FE_HAS_LOCK``, see :c:type:`fe_status`).
+
+.. note:: All counters should be monotonically increased as they're
+   collected from the hardware.
+
+A typical example of the logic that handle status and statistics is::
+
+	static int foo_get_status_and_stats(struct dvb_frontend *fe)
+	{
+		struct foo_state *state = fe->demodulator_priv;
+		struct dtv_frontend_properties *c = &fe->dtv_property_cache;
+
+		int rc;
+		enum fe_status *status;
+
+		/* Both status and strength are always available */
+		rc = foo_read_status(fe, &status);
+		if (rc < 0)
+			return rc;
+
+		rc = foo_read_strength(fe);
+		if (rc < 0)
+			return rc;
+
+		/* Check if CNR is available */
+		if (!(fe->status & FE_HAS_CARRIER))
+			return 0;
+
+		rc = foo_read_cnr(fe);
+		if (rc < 0)
+			return rc;
+
+		/* Check if pre-BER stats are available */
+		if (!(fe->status & FE_HAS_VITERBI))
+			return 0;
+
+		rc = foo_get_pre_ber(fe);
+		if (rc < 0)
+			return rc;
+
+		/* Check if post-BER stats are available */
+		if (!(fe->status & FE_HAS_SYNC))
+			return 0;
+
+		rc = foo_get_post_ber(fe);
+		if (rc < 0)
+			return rc;
+	}
+
+	static const struct dvb_frontend_ops ops = {
+		/* ... */
+		.read_status = foo_get_status_and_stats,
+	};
+
+Statistics collect
+^^^^^^^^^^^^^^^^^^
+
+On almost all frontend hardware, the bit and byte counts are stored by
+the hardware after a certain amount of time or after the total bit/block
+counter reaches a certain value (usually programable), for example, on
+every 1000 ms or after receiving 1,000,000 bits.
+
+So, if you read the registers too soon, you'll end by reading the same
+value as in the previous reading, causing the monotonic value to be
+incremented too often.
+
+Drivers should take the responsibility to avoid too often reads. That
+can be done using two approaches:
+
+if the driver have a bit that indicates when a collected data is ready
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+
+Driver should check such bit before making the statistics available.
+
+An example of such behavior can be found at this code snippet (adapted
+from mb86a20s driver's logic)::
+
+	static int foo_get_pre_ber(struct dvb_frontend *fe)
+	{
+		struct foo_state *state = fe->demodulator_priv;
+		struct dtv_frontend_properties *c = &fe->dtv_property_cache;
+		int rc, bit_error;
+
+		/* Check if the BER measures are already available */
+		rc = foo_read_u8(state, 0x54);
+		if (rc < 0)
+			return rc;
+
+		if (!rc)
+			return 0;
+
+		/* Read Bit Error Count */
+		bit_error = foo_read_u32(state, 0x55);
+		if (bit_error < 0)
+			return bit_error;
+
+		/* Read Total Bit Count */
+		rc = foo_read_u32(state, 0x51);
+		if (rc < 0)
+			return rc;
+
+		c->pre_bit_error.stat[0].scale = FE_SCALE_COUNTER;
+		c->pre_bit_error.stat[0].uvalue += bit_error;
+		c->pre_bit_count.stat[0].scale = FE_SCALE_COUNTER;
+		c->pre_bit_count.stat[0].uvalue += rc;
+
+		return 0;
+	}
+
+If the driver doesn't provide a statistics available check bit
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+
+A few devices, however, may not provide a way to check if the stats are
+available (or the way to check it is unknown). They may not even provide
+a way to directly read the total number of bits or blocks.
+
+On those devices, the driver need to ensure that it won't be reading from
+the register too often and/or estimate the total number of bits/blocks.
+
+On such drivers, a typical routine to get statistics would be like
+(adapted from dib8000 driver's logic)::
+
+	struct foo_state {
+		/* ... */
+
+		unsigned long per_jiffies_stats;
+	}
+
+	static int foo_get_pre_ber(struct dvb_frontend *fe)
+	{
+		struct foo_state *state = fe->demodulator_priv;
+		struct dtv_frontend_properties *c = &fe->dtv_property_cache;
+		int rc, bit_error;
+		u64 bits;
+
+		/* Check if time for stats was elapsed */
+		if (!time_after(jiffies, state->per_jiffies_stats))
+			return 0;
+
+		/* Next stat should be collected in 1000 ms */
+		state->per_jiffies_stats = jiffies + msecs_to_jiffies(1000);
+
+		/* Read Bit Error Count */
+		bit_error = foo_read_u32(state, 0x55);
+		if (bit_error < 0)
+			return bit_error;
+
+		/*
+		 * On this particular frontend, there's no register that
+		 * would provide the number of bits per 1000ms sample. So,
+		 * some function would calculate it based on DTV properties
+		 */
+		bits = get_number_of_bits_per_1000ms(fe);
+
+		c->pre_bit_error.stat[0].scale = FE_SCALE_COUNTER;
+		c->pre_bit_error.stat[0].uvalue += bit_error;
+		c->pre_bit_count.stat[0].scale = FE_SCALE_COUNTER;
+		c->pre_bit_count.stat[0].uvalue += bits;
+
+		return 0;
+	}
+
+Please notice that, on both cases, we're getting the statistics using the
+:c:type:`dvb_frontend_ops` ``.read_status`` callback. The rationale is that
+the frontend core will automatically call this function periodically
+(usually, 3 times per second, when the frontend is locked).
+
+That warrants that we won't miss to collect a counter and increment the
+monotonic stats at the right time.
+
+Digital TV Frontend functions and types
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+
 .. kernel-doc:: drivers/media/dvb-core/dvb_frontend.h
 
 
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index 0c8abd69f39a..d6fad90ec199 100644
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+	 x="10.05469 15.55712 20.143852 24.730585 29.317318 33.904053 38.944508 41.237877 46.740307 51.327042 57.283192 61.869926 66.910378 73.328506 95.0867 100.58913 105.17586 109.7626 114.34933 118.93606 123.97652 126.26987 131.77232 136.35905 142.3152 146.90193 152.40436 158.82249 163.86295 168.9034 175.32153 197.12534 202.62778 207.21451 211.80124 216.38797 220.9747 226.01515 228.30853 233.81096 238.39769 244.35384 248.94058 253.98103 260.39917 282.15695 287.65936 292.24609 296.83282 301.41956 306.00629 311.04675 313.34012 318.84256 323.42929 329.38544 333.97217 339.47461 345.89273 350.9332 355.97363 362.39175 384.19559 389.698 394.28473 398.87149 403.45822 408.04495 413.08539 415.37875 420.8812 425.46793 431.42407 436.0108 441.05127 447.46939 469.2276 474.73001 479.31674 483.90347 488.49023 493.07697 498.1174 500.41077 505.91321 510.49994 516.45612 521.04285 526.54523 532.96338
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-         y="-588.2937"
-         x="5.8031301 13.134519 19.805964 29.801128 36.472572 43.14402 47.139687 53.811131 56.474907 59.810631 66.482071 70.477737 77.149185 83.820625 87.816299 91.152016 94.48774 97.823463 104.4949 111.16635 114.50207 117.83779 120.50157 127.17302 129.83679 136.50824 139.84396 143.17969 145.84346 149.83913 155.83862 159.17435 162.51007 165.84579 169.84146 176.51291 183.18434 189.18385 199.17902 201.84279 205.17851 208.51424 215.18568 221.85713 225.19284 229.18851 235.85995 239.19568 245.86713 249.20285 252.53857 260.5419 269.87714 273.21286 281.21619 289.21951 295.89096">Temporal order, top field first transmitted (e.g. BG/PAL)</tspan><tspan
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-         sodipodi:role="line"
-         y="-86.604706"
-         x="5.8031301 13.806463 20.477907 27.149351 33.820797 40.492241 47.823627 51.159351 59.162685 65.834129 74.497406 81.168854 89.17218 97.175514 106.51073 113.18218 120.51357">V4L2_FIELD_SEQ_TB</tspan><tspan
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-         x="5.8031301 13.806463 20.477907 27.149351 33.820797 40.492241 47.823627 51.159351 59.162685 65.834129 74.497406 81.168854 84.50457 93.167847 100.49924 108.50257 117.16585 123.83729 131.84062 140.50391 148.50723 157.17052 160.50624 163.84196 167.17769 175.18102 181.85246 188.52391 195.19534 201.86679 209.19818 212.53391 220.53723 227.20868 235.87196 242.5434 245.87912 254.5424 261.87378 269.87714 278.54041 285.21185 293.21518 301.87845 309.88177 318.54507 325.21652 332.54791">V4L2_FIELD_INTERLACED / V4L2_FIELD_INTERLACED_TB</tspan></text>
+	 id="tspan6781"
+	 sodipodi:role="line"
+	 y="-588.2937"
+	 x="5.8031301 13.134519 19.805964 29.801128 36.472572 43.14402 47.139687 53.811131 56.474907 59.810631 66.482071 70.477737 77.149185 83.820625 87.816299 91.152016 94.48774 97.823463 104.4949 111.16635 114.50207 117.83779 120.50157 127.17302 129.83679 136.50824 139.84396 143.17969 145.84346 149.83913 155.83862 159.17435 162.51007 165.84579 169.84146 176.51291 183.18434 189.18385 199.17902 201.84279 205.17851 208.51424 215.18568 221.85713 225.19284 229.18851 235.85995 239.19568 245.86713 249.20285 252.53857 260.5419 269.87714 273.21286 281.21619 289.21951 295.89096">Temporal order, top field first transmitted (e.g. BG/PAL)</tspan><tspan
+	 id="tspan6783"
+	 sodipodi:role="line"
+	 y="-86.604706"
+	 x="5.8031301 13.806463 20.477907 27.149351 33.820797 40.492241 47.823627 51.159351 59.162685 65.834129 74.497406 81.168854 89.17218 97.175514 106.51073 113.18218 120.51357">V4L2_FIELD_SEQ_TB</tspan><tspan
+	 id="tspan6785"
+	 sodipodi:role="line"
+	 y="-192.89471"
+	 x="10.05469 18.058023 24.729465 31.400909 38.072357 44.743801 52.075188 55.410912 63.414246 70.085686 78.748962 85.42041 88.756134 97.419411 104.7508 112.75413 121.41741 128.08885 136.09219 144.75546 152.7588 161.42207 168.09352 176.09685 183.42824 186.76396 190.75963 200.75479 203.41858 209.41808 216.08952 218.7533 221.41707 228.08852 234.75996 241.43141 248.10286">V4L2_FIELD_INTERLACED_BT (misaligned)</tspan><tspan
+	 id="tspan6787"
+	 sodipodi:role="line"
+	 y="-294.93271"
+	 x="5.8031301 13.806463 20.477907 27.149351 33.820797 40.492241 47.823627 51.159351 59.162685 65.834129 74.497406 81.168854 84.50457 93.167847 100.49924 108.50257 117.16585 123.83729 131.84062 140.50391 148.50723 157.17052 160.50624 163.84196 167.17769 175.18102 181.85246 188.52391 195.19534 201.86679 209.19818 212.53391 220.53723 227.20868 235.87196 242.5434 245.87912 254.5424 261.87378 269.87714 278.54041 285.21185 293.21518 301.87845 309.88177 318.54507 325.21652 332.54791">V4L2_FIELD_INTERLACED / V4L2_FIELD_INTERLACED_TB</tspan></text>
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+	 id="tspan4585"
+	 sodipodi:role="line"
+	 y="-528.771"
+	 x="5.8031301 13.806463 20.477907 27.149351 33.820797 40.492241 47.823627 51.159351 59.162685 65.834129 74.497406 81.168854 88.500237 97.835464">V4L2_FIELD_TOP</tspan></text>
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+	 id="tspan4589"
+	 sodipodi:role="line"
+	 y="-460.74561"
+	 x="5.8031301 13.806463 20.477907 27.149351 33.820797 40.492241 47.823627 51.159351 59.162685 65.834129 74.497406 81.168854 89.17218 98.507408 105.83879 113.17018 122.5054">V4L2_FIELD_BOTTOM</tspan></text>
 <text
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        x="5.8031301 13.806463 20.477907 27.149351 33.820797 40.492241 47.823627 51.159351 59.162685 65.834129 74.497406 81.168854 89.17218 95.843628 103.17502 111.17835 119.84163 128.5049 136.50824 143.83963"
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        transform="scale(1,-1)"><tspan
-         id="tspan4593"
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+	 id="tspan4593"
+	 sodipodi:role="line"
+	 y="-392.72021"
+	 x="5.8031301 13.806463 20.477907 27.149351 33.820797 40.492241 47.823627 51.159351 59.162685 65.834129 74.497406 81.168854 89.17218 95.843628 103.17502 111.17835 119.84163 128.5049 136.50824 143.83963">V4L2_FIELD_ALTERNATE</tspan></text>
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        transform="scale(1,-1)"><tspan
-         id="tspan5849"
-         sodipodi:role="line"
-         y="-588.2937"
-         x="5.8031301 13.134519 19.805964 29.801128 36.472572 43.14402 47.139687 53.811131 56.474907 59.810631 66.482071 70.477737 77.149185 83.820625 87.816299 91.152016 94.48774 97.823463 104.4949 111.16635 114.50207 117.83779 120.50157 127.17302 129.83679 136.50824 139.84396 143.17969 145.84346 149.83913 155.83862 159.17435 162.51007 165.84579 169.84146 176.51291 183.18434 189.18385 199.17902 201.84279 205.17851 208.51424 215.18568 221.85713 225.19284 229.18851 235.85995 239.19568 245.86713 249.20285 252.53857 260.5419 269.87714 273.21286 281.21619 289.21951 295.89096">Temporal order, top field first transmitted (e.g. BG/PAL)</tspan></text>
+	 id="tspan5849"
+	 sodipodi:role="line"
+	 y="-588.2937"
+	 x="5.8031301 13.134519 19.805964 29.801128 36.472572 43.14402 47.139687 53.811131 56.474907 59.810631 66.482071 70.477737 77.149185 83.820625 87.816299 91.152016 94.48774 97.823463 104.4949 111.16635 114.50207 117.83779 120.50157 127.17302 129.83679 136.50824 139.84396 143.17969 145.84346 149.83913 155.83862 159.17435 162.51007 165.84579 169.84146 176.51291 183.18434 189.18385 199.17902 201.84279 205.17851 208.51424 215.18568 221.85713 225.19284 229.18851 235.85995 239.19568 245.86713 249.20285 252.53857 260.5419 269.87714 273.21286 281.21619 289.21951 295.89096">Temporal order, top field first transmitted (e.g. BG/PAL)</tspan></text>
 <text
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        x="5.8031301 13.806463 20.477907 27.149351 33.820797 40.492241 47.823627 51.159351 59.162685 65.834129 74.497406 81.168854 89.17218 97.175514 106.51073 113.18218 120.51357"
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        transform="scale(1,-1)"><tspan
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-         x="5.8031301 13.806463 20.477907 27.149351 33.820797 40.492241 47.823627 51.159351 59.162685 65.834129 74.497406 81.168854 89.17218 97.175514 106.51073 113.18218 120.51357">V4L2_FIELD_SEQ_TB</tspan></text>
+	 id="tspan5853"
+	 sodipodi:role="line"
+	 y="-86.604706"
+	 x="5.8031301 13.806463 20.477907 27.149351 33.820797 40.492241 47.823627 51.159351 59.162685 65.834129 74.497406 81.168854 89.17218 97.175514 106.51073 113.18218 120.51357">V4L2_FIELD_SEQ_TB</tspan></text>
 <text
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        x="10.05469 18.058023 24.729465 31.400909 38.072357 44.743801 52.075188 55.410912 63.414246 70.085686 78.748962 85.42041 88.756134 97.419411 104.7508 112.75413 121.41741 128.08885 136.09219 144.75546 152.7588 161.42207 168.09352 176.09685 183.42824 186.76396 190.75963 200.75479 203.41858 209.41808 216.08952 218.7533 221.41707 228.08852 234.75996 241.43141 248.10286"
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        transform="scale(1,-1)"><tspan
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-         sodipodi:role="line"
-         y="-192.89471"
-         x="10.05469 18.058023 24.729465 31.400909 38.072357 44.743801 52.075188 55.410912 63.414246 70.085686 78.748962 85.42041 88.756134 97.419411 104.7508 112.75413 121.41741 128.08885 136.09219 144.75546 152.7588 161.42207 168.09352 176.09685 183.42824 186.76396 190.75963 200.75479 203.41858 209.41808 216.08952 218.7533 221.41707 228.08852 234.75996 241.43141 248.10286">V4L2_FIELD_INTERLACED_BT (misaligned)</tspan></text>
+	 id="tspan5857"
+	 sodipodi:role="line"
+	 y="-192.89471"
+	 x="10.05469 18.058023 24.729465 31.400909 38.072357 44.743801 52.075188 55.410912 63.414246 70.085686 78.748962 85.42041 88.756134 97.419411 104.7508 112.75413 121.41741 128.08885 136.09219 144.75546 152.7588 161.42207 168.09352 176.09685 183.42824 186.76396 190.75963 200.75479 203.41858 209.41808 216.08952 218.7533 221.41707 228.08852 234.75996 241.43141 248.10286">V4L2_FIELD_INTERLACED_BT (misaligned)</tspan></text>
 <text
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        transform="scale(1,-1)"><tspan
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+	 id="tspan5861"
+	 sodipodi:role="line"
+	 y="-294.93271"
+	 x="5.8031301 13.806463 20.477907 27.149351 33.820797 40.492241 47.823627 51.159351 59.162685 65.834129 74.497406 81.168854 84.50457 93.167847 100.49924 108.50257 117.16585 123.83729 131.84062 140.50391 148.50723 157.17052 160.50624 163.84196 167.17769 175.18102 181.85246 188.52391 195.19534 201.86679 209.19818 212.53391 220.53723 227.20868 235.87196 242.5434 245.87912 254.5424 261.87378 269.87714 278.54041 285.21185 293.21518 301.87845 309.88177 318.54507 325.21652 332.54791">V4L2_FIELD_INTERLACED / V4L2_FIELD_INTERLACED_TB</tspan></text>
 <text
        y="-324.69479"
        x="10.05469 14.17945 18.766184 20.597576 25.184309 29.771042 34.357777 38.944508 41.237877 43.531242 48.117977 50.865067 53.158432 55.451801 57.283192 61.869926 63.701321 68.288048"
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        transform="scale(1,-1)"><tspan
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+	 id="tspan7133"
+	 sodipodi:role="line"
+	 y="-324.69479"
+	 x="10.05469 14.17945 18.766184 20.597576 25.184309 29.771042 34.357777 38.944508 41.237877 43.531242 48.117977 50.865067 53.158432 55.451801 57.283192 61.869926 63.701321 68.288048">v4l2_buffer.field:</tspan></text>
 <text
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index 1903dd3846c2..ee1df49f83e8 100644
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diff --git a/Documentation/media/uapi/v4l/vidioc-g-fmt.rst b/Documentation/media/uapi/v4l/vidioc-g-fmt.rst
index b853e48312e2..d082f9a21548 100644
--- a/Documentation/media/uapi/v4l/vidioc-g-fmt.rst
+++ b/Documentation/media/uapi/v4l/vidioc-g-fmt.rst
@@ -147,3 +147,9 @@ appropriately. The generic error codes are described at the
 EINVAL
     The struct :c:type:`v4l2_format` ``type`` field is
     invalid or the requested buffer type not supported.
+
+EBUSY
+    The device is busy and cannot change the format. This could be
+    because or the device is streaming or buffers are allocated or
+    queued to the driver. Relevant for :ref:`VIDIOC_S_FMT
+    <VIDIOC_G_FMT>` only.
diff --git a/Documentation/media/v4l-drivers/imx.rst b/Documentation/media/v4l-drivers/imx.rst
index e0ee0f1aeb05..3c4f58bda178 100644
--- a/Documentation/media/v4l-drivers/imx.rst
+++ b/Documentation/media/v4l-drivers/imx.rst
@@ -607,8 +607,9 @@ References
 
 Authors
 -------
-Steve Longerbeam <steve_longerbeam@mentor.com>
-Philipp Zabel <kernel@pengutronix.de>
-Russell King <linux@armlinux.org.uk>
+
+- Steve Longerbeam <steve_longerbeam@mentor.com>
+- Philipp Zabel <kernel@pengutronix.de>
+- Russell King <linux@armlinux.org.uk>
 
 Copyright (C) 2012-2017 Mentor Graphics Inc.
diff --git a/Documentation/media/v4l-drivers/index.rst b/Documentation/media/v4l-drivers/index.rst
index 2e24d6806052..10f2ce42ece2 100644
--- a/Documentation/media/v4l-drivers/index.rst
+++ b/Documentation/media/v4l-drivers/index.rst
@@ -41,6 +41,7 @@ For more details see the file COPYING in the source distribution of Linux.
 	cx88
 	davinci-vpbe
 	fimc
+	imx
 	ivtv
 	max2175
 	meye
diff --git a/Documentation/memory-barriers.txt b/Documentation/memory-barriers.txt
index c239a0cf4b1a..c4ddfcd5ee32 100644
--- a/Documentation/memory-barriers.txt
+++ b/Documentation/memory-barriers.txt
@@ -1876,8 +1876,8 @@ There are some more advanced barrier functions:
      This makes sure that the death mark on the object is perceived to be set
      *before* the reference counter is decremented.
 
-     See Documentation/atomic_ops.txt for more information.  See the "Atomic
-     operations" subsection for information on where to use these.
+     See Documentation/core-api/atomic_ops.rst for more information.  See the
+     "Atomic operations" subsection for information on where to use these.
 
 
  (*) lockless_dereference();
@@ -2584,7 +2584,7 @@ situations because on some CPUs the atomic instructions used imply full memory
 barriers, and so barrier instructions are superfluous in conjunction with them,
 and in such cases the special barrier primitives will be no-ops.
 
-See Documentation/atomic_ops.txt for more information.
+See Documentation/core-api/atomic_ops.rst for more information.
 
 
 ACCESSING DEVICES
diff --git a/Documentation/memory-hotplug.txt b/Documentation/memory-hotplug.txt
index 5c628e19d6cd..7f49ebf3ddb2 100644
--- a/Documentation/memory-hotplug.txt
+++ b/Documentation/memory-hotplug.txt
@@ -2,43 +2,48 @@
 Memory Hotplug
 ==============
 
-Created:					Jul 28 2007
-Add description of notifier of memory hotplug	Oct 11 2007
+:Created:							Jul 28 2007
+:Updated: Add description of notifier of memory hotplug:	Oct 11 2007
 
 This document is about memory hotplug including how-to-use and current status.
 Because Memory Hotplug is still under development, contents of this text will
 be changed often.
 
-1. Introduction
-  1.1 purpose of memory hotplug
-  1.2. Phases of memory hotplug
-  1.3. Unit of Memory online/offline operation
-2. Kernel Configuration
-3. sysfs files for memory hotplug
-4. Physical memory hot-add phase
-  4.1 Hardware(Firmware) Support
-  4.2 Notify memory hot-add event by hand
-5. Logical Memory hot-add phase
-  5.1. State of memory
-  5.2. How to online memory
-6. Logical memory remove
-  6.1 Memory offline and ZONE_MOVABLE
-  6.2. How to offline memory
-7. Physical memory remove
-8. Memory hotplug event notifier
-9. Future Work List
-
-Note(1): x86_64's has special implementation for memory hotplug.
-         This text does not describe it.
-Note(2): This text assumes that sysfs is mounted at /sys.
+.. CONTENTS
 
+  1. Introduction
+    1.1 purpose of memory hotplug
+    1.2. Phases of memory hotplug
+    1.3. Unit of Memory online/offline operation
+  2. Kernel Configuration
+  3. sysfs files for memory hotplug
+  4. Physical memory hot-add phase
+    4.1 Hardware(Firmware) Support
+    4.2 Notify memory hot-add event by hand
+  5. Logical Memory hot-add phase
+    5.1. State of memory
+    5.2. How to online memory
+  6. Logical memory remove
+    6.1 Memory offline and ZONE_MOVABLE
+    6.2. How to offline memory
+  7. Physical memory remove
+  8. Memory hotplug event notifier
+  9. Future Work List
 
----------------
-1. Introduction
----------------
 
-1.1 purpose of memory hotplug
-------------
+.. note::
+
+    (1) x86_64's has special implementation for memory hotplug.
+        This text does not describe it.
+    (2) This text assumes that sysfs is mounted at /sys.
+
+
+Introduction
+============
+
+purpose of memory hotplug
+-------------------------
+
 Memory Hotplug allows users to increase/decrease the amount of memory.
 Generally, there are two purposes.
 
@@ -53,9 +58,11 @@ hardware which supports memory power management.
 Linux memory hotplug is designed for both purpose.
 
 
-1.2. Phases of memory hotplug
----------------
-There are 2 phases in Memory Hotplug.
+Phases of memory hotplug
+------------------------
+
+There are 2 phases in Memory Hotplug:
+
   1) Physical Memory Hotplug phase
   2) Logical Memory Hotplug phase.
 
@@ -70,7 +77,7 @@ management tables, and makes sysfs files for new memory's operation.
 If firmware supports notification of connection of new memory to OS,
 this phase is triggered automatically. ACPI can notify this event. If not,
 "probe" operation by system administration is used instead.
-(see Section 4.).
+(see :ref:`memory_hotplug_physical_mem`).
 
 Logical Memory Hotplug phase is to change memory state into
 available/unavailable for users. Amount of memory from user's view is
@@ -83,11 +90,12 @@ Logical Memory Hotplug phase is triggered by write of sysfs file by system
 administrator. For the hot-add case, it must be executed after Physical Hotplug
 phase by hand.
 (However, if you writes udev's hotplug scripts for memory hotplug, these
- phases can be execute in seamless way.)
+phases can be execute in seamless way.)
+
 
+Unit of Memory online/offline operation
+---------------------------------------
 
-1.3. Unit of Memory online/offline operation
-------------
 Memory hotplug uses SPARSEMEM memory model which allows memory to be divided
 into chunks of the same size. These chunks are called "sections". The size of
 a memory section is architecture dependent. For example, power uses 16MiB, ia64
@@ -97,46 +105,50 @@ Memory sections are combined into chunks referred to as "memory blocks". The
 size of a memory block is architecture dependent and represents the logical
 unit upon which memory online/offline operations are to be performed. The
 default size of a memory block is the same as memory section size unless an
-architecture specifies otherwise. (see Section 3.)
+architecture specifies otherwise. (see :ref:`memory_hotplug_sysfs_files`.)
 
 To determine the size (in bytes) of a memory block please read this file:
 
 /sys/devices/system/memory/block_size_bytes
 
 
------------------------
-2. Kernel Configuration
------------------------
+Kernel Configuration
+====================
+
 To use memory hotplug feature, kernel must be compiled with following
 config options.
 
-- For all memory hotplug
-    Memory model -> Sparse Memory  (CONFIG_SPARSEMEM)
-    Allow for memory hot-add       (CONFIG_MEMORY_HOTPLUG)
+- For all memory hotplug:
+    - Memory model -> Sparse Memory  (CONFIG_SPARSEMEM)
+    - Allow for memory hot-add       (CONFIG_MEMORY_HOTPLUG)
 
-- To enable memory removal, the following are also necessary
-    Allow for memory hot remove    (CONFIG_MEMORY_HOTREMOVE)
-    Page Migration                 (CONFIG_MIGRATION)
+- To enable memory removal, the following are also necessary:
+    - Allow for memory hot remove    (CONFIG_MEMORY_HOTREMOVE)
+    - Page Migration                 (CONFIG_MIGRATION)
 
-- For ACPI memory hotplug, the following are also necessary
-    Memory hotplug (under ACPI Support menu) (CONFIG_ACPI_HOTPLUG_MEMORY)
-    This option can be kernel module.
+- For ACPI memory hotplug, the following are also necessary:
+    - Memory hotplug (under ACPI Support menu) (CONFIG_ACPI_HOTPLUG_MEMORY)
+    - This option can be kernel module.
 
 - As a related configuration, if your box has a feature of NUMA-node hotplug
   via ACPI, then this option is necessary too.
-    ACPI0004,PNP0A05 and PNP0A06 Container Driver (under ACPI Support menu)
-    (CONFIG_ACPI_CONTAINER).
-    This option can be kernel module too.
 
+    - ACPI0004,PNP0A05 and PNP0A06 Container Driver (under ACPI Support menu)
+      (CONFIG_ACPI_CONTAINER).
+
+     This option can be kernel module too.
+
+
+.. _memory_hotplug_sysfs_files:
+
+sysfs files for memory hotplug
+==============================
 
---------------------------------
-3 sysfs files for memory hotplug
---------------------------------
 All memory blocks have their device information in sysfs.  Each memory block
-is described under /sys/devices/system/memory as
+is described under /sys/devices/system/memory as:
 
-/sys/devices/system/memory/memoryXXX
-(XXX is the memory block id.)
+	/sys/devices/system/memory/memoryXXX
+	(XXX is the memory block id.)
 
 For the memory block covered by the sysfs directory.  It is expected that all
 memory sections in this range are present and no memory holes exist in the
@@ -145,43 +157,53 @@ the existence of one should not affect the hotplug capabilities of the memory
 block.
 
 For example, assume 1GiB memory block size. A device for a memory starting at
-0x100000000 is /sys/device/system/memory/memory4
-(0x100000000 / 1Gib = 4)
+0x100000000 is /sys/device/system/memory/memory4::
+
+	(0x100000000 / 1Gib = 4)
+
 This device covers address range [0x100000000 ... 0x140000000)
 
 Under each memory block, you can see 5 files:
 
-/sys/devices/system/memory/memoryXXX/phys_index
-/sys/devices/system/memory/memoryXXX/phys_device
-/sys/devices/system/memory/memoryXXX/state
-/sys/devices/system/memory/memoryXXX/removable
-/sys/devices/system/memory/memoryXXX/valid_zones
+- /sys/devices/system/memory/memoryXXX/phys_index
+- /sys/devices/system/memory/memoryXXX/phys_device
+- /sys/devices/system/memory/memoryXXX/state
+- /sys/devices/system/memory/memoryXXX/removable
+- /sys/devices/system/memory/memoryXXX/valid_zones
+
+=================== ============================================================
+``phys_index``      read-only and contains memory block id, same as XXX.
+``state``           read-write
+
+                    - at read:  contains online/offline state of memory.
+                    - at write: user can specify "online_kernel",
 
-'phys_index'      : read-only and contains memory block id, same as XXX.
-'state'           : read-write
-                    at read:  contains online/offline state of memory.
-                    at write: user can specify "online_kernel",
                     "online_movable", "online", "offline" command
                     which will be performed on all sections in the block.
-'phys_device'     : read-only: designed to show the name of physical memory
+``phys_device``     read-only: designed to show the name of physical memory
                     device.  This is not well implemented now.
-'removable'       : read-only: contains an integer value indicating
+``removable``       read-only: contains an integer value indicating
                     whether the memory block is removable or not
                     removable.  A value of 1 indicates that the memory
                     block is removable and a value of 0 indicates that
                     it is not removable. A memory block is removable only if
                     every section in the block is removable.
-'valid_zones'     : read-only: designed to show which zones this memory block
+``valid_zones``     read-only: designed to show which zones this memory block
 		    can be onlined to.
-		    The first column shows it's default zone.
+
+		    The first column shows it`s default zone.
+
 		    "memory6/valid_zones: Normal Movable" shows this memoryblock
 		    can be onlined to ZONE_NORMAL by default and to ZONE_MOVABLE
 		    by online_movable.
+
 		    "memory7/valid_zones: Movable Normal" shows this memoryblock
 		    can be onlined to ZONE_MOVABLE by default and to ZONE_NORMAL
 		    by online_kernel.
+=================== ============================================================
+
+.. note::
 
-NOTE:
   These directories/files appear after physical memory hotplug phase.
 
 If CONFIG_NUMA is enabled the memoryXXX/ directories can also be accessed
@@ -193,13 +215,14 @@ For example:
 A backlink will also be created:
 /sys/devices/system/memory/memory9/node0 -> ../../node/node0
 
+.. _memory_hotplug_physical_mem:
+
+Physical memory hot-add phase
+=============================
 
---------------------------------
-4. Physical memory hot-add phase
---------------------------------
+Hardware(Firmware) Support
+--------------------------
 
-4.1 Hardware(Firmware) Support
-------------
 On x86_64/ia64 platform, memory hotplug by ACPI is supported.
 
 In general, the firmware (ACPI) which supports memory hotplug defines
@@ -209,7 +232,8 @@ script. This will be done automatically.
 
 But scripts for memory hotplug are not contained in generic udev package(now).
 You may have to write it by yourself or online/offline memory by hand.
-Please see "How to online memory", "How to offline memory" in this text.
+Please see :ref:`memory_hotplug_how_to_online_memory` and
+:ref:`memory_hotplug_how_to_offline_memory`.
 
 If firmware supports NUMA-node hotplug, and defines an object _HID "ACPI0004",
 "PNP0A05", or "PNP0A06", notification is asserted to it, and ACPI handler
@@ -217,8 +241,9 @@ calls hotplug code for all of objects which are defined in it.
 If memory device is found, memory hotplug code will be called.
 
 
-4.2 Notify memory hot-add event by hand
-------------
+Notify memory hot-add event by hand
+-----------------------------------
+
 On some architectures, the firmware may not notify the kernel of a memory
 hotplug event.  Therefore, the memory "probe" interface is supported to
 explicitly notify the kernel.  This interface depends on
@@ -229,45 +254,48 @@ notification.
 Probe interface is located at
 /sys/devices/system/memory/probe
 
-You can tell the physical address of new memory to the kernel by
+You can tell the physical address of new memory to the kernel by::
 
-% echo start_address_of_new_memory > /sys/devices/system/memory/probe
+	% echo start_address_of_new_memory > /sys/devices/system/memory/probe
 
 Then, [start_address_of_new_memory, start_address_of_new_memory +
 memory_block_size] memory range is hot-added. In this case, hotplug script is
 not called (in current implementation). You'll have to online memory by
-yourself.  Please see "How to online memory" in this text.
+yourself.  Please see :ref:`memory_hotplug_how_to_online_memory`.
 
 
-------------------------------
-5. Logical Memory hot-add phase
-------------------------------
+Logical Memory hot-add phase
+============================
 
-5.1. State of memory
-------------
-To see (online/offline) state of a memory block, read 'state' file.
+State of memory
+---------------
+
+To see (online/offline) state of a memory block, read 'state' file::
+
+	% cat /sys/device/system/memory/memoryXXX/state
 
-% cat /sys/device/system/memory/memoryXXX/state
 
+- If the memory block is online, you'll read "online".
+- If the memory block is offline, you'll read "offline".
 
-If the memory block is online, you'll read "online".
-If the memory block is offline, you'll read "offline".
 
+.. _memory_hotplug_how_to_online_memory:
+
+How to online memory
+--------------------
 
-5.2. How to online memory
-------------
 When the memory is hot-added, the kernel decides whether or not to "online"
-it according to the policy which can be read from "auto_online_blocks" file:
+it according to the policy which can be read from "auto_online_blocks" file::
 
-% cat /sys/devices/system/memory/auto_online_blocks
+	% cat /sys/devices/system/memory/auto_online_blocks
 
 The default depends on the CONFIG_MEMORY_HOTPLUG_DEFAULT_ONLINE kernel config
 option. If it is disabled the default is "offline" which means the newly added
 memory is not in a ready-to-use state and you have to "online" the newly added
 memory blocks manually. Automatic onlining can be requested by writing "online"
-to "auto_online_blocks" file:
+to "auto_online_blocks" file::
 
-% echo online > /sys/devices/system/memory/auto_online_blocks
+	% echo online > /sys/devices/system/memory/auto_online_blocks
 
 This sets a global policy and impacts all memory blocks that will subsequently
 be hotplugged. Currently offline blocks keep their state. It is possible, under
@@ -277,24 +305,26 @@ online. User space tools can check their "state" files
 
 If the automatic onlining wasn't requested, failed, or some memory block was
 offlined it is possible to change the individual block's state by writing to the
-"state" file:
+"state" file::
 
-% echo online > /sys/devices/system/memory/memoryXXX/state
+	% echo online > /sys/devices/system/memory/memoryXXX/state
 
 This onlining will not change the ZONE type of the target memory block,
 If the memory block doesn't belong to any zone an appropriate kernel zone
 (usually ZONE_NORMAL) will be used unless movable_node kernel command line
 option is specified when ZONE_MOVABLE will be used.
 
-You can explicitly request to associate it with ZONE_MOVABLE by
+You can explicitly request to associate it with ZONE_MOVABLE by::
+
+	% echo online_movable > /sys/devices/system/memory/memoryXXX/state
 
-% echo online_movable > /sys/devices/system/memory/memoryXXX/state
-(NOTE: current limit: this memory block must be adjacent to ZONE_MOVABLE)
+.. note:: current limit: this memory block must be adjacent to ZONE_MOVABLE
 
-Or you can explicitly request a kernel zone (usually ZONE_NORMAL) by:
+Or you can explicitly request a kernel zone (usually ZONE_NORMAL) by::
 
-% echo online_kernel > /sys/devices/system/memory/memoryXXX/state
-(NOTE: current limit: this memory block must be adjacent to ZONE_NORMAL)
+	% echo online_kernel > /sys/devices/system/memory/memoryXXX/state
+
+.. note:: current limit: this memory block must be adjacent to ZONE_NORMAL
 
 An explicit zone onlining can fail (e.g. when the range is already within
 and existing and incompatible zone already).
@@ -306,12 +336,12 @@ This may be changed in future.
 
 
 
-------------------------
-6. Logical memory remove
-------------------------
+Logical memory remove
+=====================
+
+Memory offline and ZONE_MOVABLE
+-------------------------------
 
-6.1 Memory offline and ZONE_MOVABLE
-------------
 Memory offlining is more complicated than memory online. Because memory offline
 has to make the whole memory block be unused, memory offline can fail if
 the memory block includes memory which cannot be freed.
@@ -336,24 +366,27 @@ Assume the system has "TOTAL" amount of memory at boot time, this boot option
 creates ZONE_MOVABLE as following.
 
 1) When kernelcore=YYYY boot option is used,
-  Size of memory not for movable pages (not for offline) is YYYY.
-  Size of memory for movable pages (for offline) is TOTAL-YYYY.
+   Size of memory not for movable pages (not for offline) is YYYY.
+   Size of memory for movable pages (for offline) is TOTAL-YYYY.
 
 2) When movablecore=ZZZZ boot option is used,
-  Size of memory not for movable pages (not for offline) is TOTAL - ZZZZ.
-  Size of memory for movable pages (for offline) is ZZZZ.
+   Size of memory not for movable pages (not for offline) is TOTAL - ZZZZ.
+   Size of memory for movable pages (for offline) is ZZZZ.
+
+.. note::
 
+   Unfortunately, there is no information to show which memory block belongs
+   to ZONE_MOVABLE. This is TBD.
 
-Note: Unfortunately, there is no information to show which memory block belongs
-to ZONE_MOVABLE. This is TBD.
+.. _memory_hotplug_how_to_offline_memory:
 
+How to offline memory
+---------------------
 
-6.2. How to offline memory
-------------
 You can offline a memory block by using the same sysfs interface that was used
-in memory onlining.
+in memory onlining::
 
-% echo offline > /sys/devices/system/memory/memoryXXX/state
+	% echo offline > /sys/devices/system/memory/memoryXXX/state
 
 If offline succeeds, the state of the memory block is changed to be "offline".
 If it fails, some error core (like -EBUSY) will be returned by the kernel.
@@ -367,22 +400,22 @@ able to offline it (or not). (For example, a page is referred to by some kernel
 internal call and released soon.)
 
 Consideration:
-Memory hotplug's design direction is to make the possibility of memory offlining
-higher and to guarantee unplugging memory under any situation. But it needs
-more work. Returning -EBUSY under some situation may be good because the user
-can decide to retry more or not by himself. Currently, memory offlining code
-does some amount of retry with 120 seconds timeout.
+  Memory hotplug's design direction is to make the possibility of memory
+  offlining higher and to guarantee unplugging memory under any situation. But
+  it needs more work. Returning -EBUSY under some situation may be good because
+  the user can decide to retry more or not by himself. Currently, memory
+  offlining code does some amount of retry with 120 seconds timeout.
+
+Physical memory remove
+======================
 
--------------------------
-7. Physical memory remove
--------------------------
 Need more implementation yet....
  - Notification completion of remove works by OS to firmware.
  - Guard from remove if not yet.
 
---------------------------------
-8. Memory hotplug event notifier
---------------------------------
+Memory hotplug event notifier
+=============================
+
 Hotplugging events are sent to a notification queue.
 
 There are six types of notification defined in include/linux/memory.h:
@@ -412,14 +445,14 @@ MEM_CANCEL_OFFLINE
 MEM_OFFLINE
   Generated after offlining memory is complete.
 
-A callback routine can be registered by calling
+A callback routine can be registered by calling::
 
   hotplug_memory_notifier(callback_func, priority)
 
 Callback functions with higher values of priority are called before callback
 functions with lower values.
 
-A callback function must have the following prototype:
+A callback function must have the following prototype::
 
   int callback_func(
     struct notifier_block *self, unsigned long action, void *arg);
@@ -427,27 +460,28 @@ A callback function must have the following prototype:
 The first argument of the callback function (self) is a pointer to the block
 of the notifier chain that points to the callback function itself.
 The second argument (action) is one of the event types described above.
-The third argument (arg) passes a pointer of struct memory_notify.
-
-struct memory_notify {
-       unsigned long start_pfn;
-       unsigned long nr_pages;
-       int status_change_nid_normal;
-       int status_change_nid_high;
-       int status_change_nid;
-}
-
-start_pfn is start_pfn of online/offline memory.
-nr_pages is # of pages of online/offline memory.
-status_change_nid_normal is set node id when N_NORMAL_MEMORY of nodemask
-is (will be) set/clear, if this is -1, then nodemask status is not changed.
-status_change_nid_high is set node id when N_HIGH_MEMORY of nodemask
-is (will be) set/clear, if this is -1, then nodemask status is not changed.
-status_change_nid is set node id when N_MEMORY of nodemask is (will be)
-set/clear. It means a new(memoryless) node gets new memory by online and a
-node loses all memory. If this is -1, then nodemask status is not changed.
-If status_changed_nid* >= 0, callback should create/discard structures for the
-node if necessary.
+The third argument (arg) passes a pointer of struct memory_notify::
+
+	struct memory_notify {
+		unsigned long start_pfn;
+		unsigned long nr_pages;
+		int status_change_nid_normal;
+		int status_change_nid_high;
+		int status_change_nid;
+	}
+
+- start_pfn is start_pfn of online/offline memory.
+- nr_pages is # of pages of online/offline memory.
+- status_change_nid_normal is set node id when N_NORMAL_MEMORY of nodemask
+  is (will be) set/clear, if this is -1, then nodemask status is not changed.
+- status_change_nid_high is set node id when N_HIGH_MEMORY of nodemask
+  is (will be) set/clear, if this is -1, then nodemask status is not changed.
+- status_change_nid is set node id when N_MEMORY of nodemask is (will be)
+  set/clear. It means a new(memoryless) node gets new memory by online and a
+  node loses all memory. If this is -1, then nodemask status is not changed.
+
+  If status_changed_nid* >= 0, callback should create/discard structures for the
+  node if necessary.
 
 The callback routine shall return one of the values
 NOTIFY_DONE, NOTIFY_OK, NOTIFY_BAD, NOTIFY_STOP
@@ -461,9 +495,9 @@ further processing of the notification queue.
 
 NOTIFY_STOP stops further processing of the notification queue.
 
---------------
-9. Future Work
---------------
+Future Work
+===========
+
   - allowing memory hot-add to ZONE_MOVABLE. maybe we need some switch like
     sysctl or new control file.
   - showing memory block and physical device relationship.
@@ -471,4 +505,3 @@ NOTIFY_STOP stops further processing of the notification queue.
   - support HugeTLB page migration and offlining.
   - memmap removing at memory offline.
   - physical remove memory.
-
diff --git a/Documentation/men-chameleon-bus.txt b/Documentation/men-chameleon-bus.txt
index 30ded732027e..1b1f048aa748 100644
--- a/Documentation/men-chameleon-bus.txt
+++ b/Documentation/men-chameleon-bus.txt
@@ -1,163 +1,175 @@
-                               MEN Chameleon Bus
-                               =================
-
-Table of Contents
 =================
-1 Introduction
-    1.1 Scope of this Document
-    1.2 Limitations of the current implementation
-2 Architecture
-    2.1 MEN Chameleon Bus
-    2.2 Carrier Devices
-    2.3 Parser
-3 Resource handling
-    3.1 Memory Resources
-    3.2 IRQs
-4 Writing an MCB driver
-    4.1 The driver structure
-    4.2 Probing and attaching
-    4.3 Initializing the driver
-
-
-1 Introduction
-===============
-  This document describes the architecture and implementation of the MEN
-  Chameleon Bus (called MCB throughout this document).
-
-1.1 Scope of this Document
----------------------------
-  This document is intended to be a short overview of the current
-  implementation and does by no means describe the complete possibilities of MCB
-  based devices.
-
-1.2 Limitations of the current implementation
-----------------------------------------------
-  The current implementation is limited to PCI and PCIe based carrier devices
-  that only use a single memory resource and share the PCI legacy IRQ.  Not
-  implemented are:
-  - Multi-resource MCB devices like the VME Controller or M-Module carrier.
-  - MCB devices that need another MCB device, like SRAM for a DMA Controller's
-    buffer descriptors or a video controller's video memory.
-  - A per-carrier IRQ domain for carrier devices that have one (or more) IRQs
-    per MCB device like PCIe based carriers with MSI or MSI-X support.
-
-2 Architecture
-===============
-  MCB is divided into 3 functional blocks:
-  - The MEN Chameleon Bus itself,
-  - drivers for MCB Carrier Devices and
-  - the parser for the Chameleon table.
-
-2.1 MEN Chameleon Bus
+MEN Chameleon Bus
+=================
+
+.. Table of Contents
+   =================
+   1 Introduction
+       1.1 Scope of this Document
+       1.2 Limitations of the current implementation
+   2 Architecture
+       2.1 MEN Chameleon Bus
+       2.2 Carrier Devices
+       2.3 Parser
+   3 Resource handling
+       3.1 Memory Resources
+       3.2 IRQs
+   4 Writing an MCB driver
+       4.1 The driver structure
+       4.2 Probing and attaching
+       4.3 Initializing the driver
+
+
+Introduction
+============
+
+This document describes the architecture and implementation of the MEN
+Chameleon Bus (called MCB throughout this document).
+
+Scope of this Document
 ----------------------
-   The MEN Chameleon Bus is an artificial bus system that attaches to a so
-   called Chameleon FPGA device found on some hardware produced my MEN Mikro
-   Elektronik GmbH. These devices are multi-function devices implemented in a
-   single FPGA and usually attached via some sort of PCI or PCIe link. Each
-   FPGA contains a header section describing the content of the FPGA. The
-   header lists the device id, PCI BAR, offset from the beginning of the PCI
-   BAR, size in the FPGA, interrupt number and some other properties currently
-   not handled by the MCB implementation.
-
-2.2 Carrier Devices
+
+This document is intended to be a short overview of the current
+implementation and does by no means describe the complete possibilities of MCB
+based devices.
+
+Limitations of the current implementation
+-----------------------------------------
+
+The current implementation is limited to PCI and PCIe based carrier devices
+that only use a single memory resource and share the PCI legacy IRQ.  Not
+implemented are:
+
+- Multi-resource MCB devices like the VME Controller or M-Module carrier.
+- MCB devices that need another MCB device, like SRAM for a DMA Controller's
+  buffer descriptors or a video controller's video memory.
+- A per-carrier IRQ domain for carrier devices that have one (or more) IRQs
+  per MCB device like PCIe based carriers with MSI or MSI-X support.
+
+Architecture
+============
+
+MCB is divided into 3 functional blocks:
+
+- The MEN Chameleon Bus itself,
+- drivers for MCB Carrier Devices and
+- the parser for the Chameleon table.
+
+MEN Chameleon Bus
+-----------------
+
+The MEN Chameleon Bus is an artificial bus system that attaches to a so
+called Chameleon FPGA device found on some hardware produced my MEN Mikro
+Elektronik GmbH. These devices are multi-function devices implemented in a
+single FPGA and usually attached via some sort of PCI or PCIe link. Each
+FPGA contains a header section describing the content of the FPGA. The
+header lists the device id, PCI BAR, offset from the beginning of the PCI
+BAR, size in the FPGA, interrupt number and some other properties currently
+not handled by the MCB implementation.
+
+Carrier Devices
+---------------
+
+A carrier device is just an abstraction for the real world physical bus the
+Chameleon FPGA is attached to. Some IP Core drivers may need to interact with
+properties of the carrier device (like querying the IRQ number of a PCI
+device). To provide abstraction from the real hardware bus, an MCB carrier
+device provides callback methods to translate the driver's MCB function calls
+to hardware related function calls. For example a carrier device may
+implement the get_irq() method which can be translated into a hardware bus
+query for the IRQ number the device should use.
+
+Parser
+------
+
+The parser reads the first 512 bytes of a Chameleon device and parses the
+Chameleon table. Currently the parser only supports the Chameleon v2 variant
+of the Chameleon table but can easily be adopted to support an older or
+possible future variant. While parsing the table's entries new MCB devices
+are allocated and their resources are assigned according to the resource
+assignment in the Chameleon table. After resource assignment is finished, the
+MCB devices are registered at the MCB and thus at the driver core of the
+Linux kernel.
+
+Resource handling
+=================
+
+The current implementation assigns exactly one memory and one IRQ resource
+per MCB device. But this is likely going to change in the future.
+
+Memory Resources
+----------------
+
+Each MCB device has exactly one memory resource, which can be requested from
+the MCB bus. This memory resource is the physical address of the MCB device
+inside the carrier and is intended to be passed to ioremap() and friends. It
+is already requested from the kernel by calling request_mem_region().
+
+IRQs
+----
+
+Each MCB device has exactly one IRQ resource, which can be requested from the
+MCB bus. If a carrier device driver implements the ->get_irq() callback
+method, the IRQ number assigned by the carrier device will be returned,
+otherwise the IRQ number inside the Chameleon table will be returned. This
+number is suitable to be passed to request_irq().
+
+Writing an MCB driver
+=====================
+
+The driver structure
 --------------------
-   A carrier device is just an abstraction for the real world physical bus the
-   Chameleon FPGA is attached to. Some IP Core drivers may need to interact with
-   properties of the carrier device (like querying the IRQ number of a PCI
-   device). To provide abstraction from the real hardware bus, an MCB carrier
-   device provides callback methods to translate the driver's MCB function calls
-   to hardware related function calls. For example a carrier device may
-   implement the get_irq() method which can be translated into a hardware bus
-   query for the IRQ number the device should use.
-
-2.3 Parser
------------
-   The parser reads the first 512 bytes of a Chameleon device and parses the
-   Chameleon table. Currently the parser only supports the Chameleon v2 variant
-   of the Chameleon table but can easily be adopted to support an older or
-   possible future variant. While parsing the table's entries new MCB devices
-   are allocated and their resources are assigned according to the resource
-   assignment in the Chameleon table. After resource assignment is finished, the
-   MCB devices are registered at the MCB and thus at the driver core of the
-   Linux kernel.
-
-3 Resource handling
-====================
-  The current implementation assigns exactly one memory and one IRQ resource
-  per MCB device. But this is likely going to change in the future.
-
-3.1 Memory Resources
+
+Each MCB driver has a structure to identify the device driver as well as
+device ids which identify the IP Core inside the FPGA. The driver structure
+also contains callback methods which get executed on driver probe and
+removal from the system::
+
+	static const struct mcb_device_id foo_ids[] = {
+		{ .device = 0x123 },
+		{ }
+	};
+	MODULE_DEVICE_TABLE(mcb, foo_ids);
+
+	static struct mcb_driver foo_driver = {
+	driver = {
+		.name = "foo-bar",
+		.owner = THIS_MODULE,
+	},
+		.probe = foo_probe,
+		.remove = foo_remove,
+		.id_table = foo_ids,
+	};
+
+Probing and attaching
 ---------------------
-   Each MCB device has exactly one memory resource, which can be requested from
-   the MCB bus. This memory resource is the physical address of the MCB device
-   inside the carrier and is intended to be passed to ioremap() and friends. It
-   is already requested from the kernel by calling request_mem_region().
-
-3.2 IRQs
----------
-   Each MCB device has exactly one IRQ resource, which can be requested from the
-   MCB bus. If a carrier device driver implements the ->get_irq() callback
-   method, the IRQ number assigned by the carrier device will be returned,
-   otherwise the IRQ number inside the Chameleon table will be returned. This
-   number is suitable to be passed to request_irq().
-
-4 Writing an MCB driver
-=======================
-
-4.1 The driver structure
--------------------------
-    Each MCB driver has a structure to identify the device driver as well as
-    device ids which identify the IP Core inside the FPGA. The driver structure
-    also contains callback methods which get executed on driver probe and
-    removal from the system.
-
-
-  static const struct mcb_device_id foo_ids[] = {
-          { .device = 0x123 },
-          { }
-  };
-  MODULE_DEVICE_TABLE(mcb, foo_ids);
-
-  static struct mcb_driver foo_driver = {
-          driver = {
-                  .name = "foo-bar",
-                  .owner = THIS_MODULE,
-          },
-          .probe = foo_probe,
-          .remove = foo_remove,
-          .id_table = foo_ids,
-  };
-
-4.2 Probing and attaching
---------------------------
-   When a driver is loaded and the MCB devices it services are found, the MCB
-   core will call the driver's probe callback method. When the driver is removed
-   from the system, the MCB core will call the driver's remove callback method.
-
-
-  static init foo_probe(struct mcb_device *mdev, const struct mcb_device_id *id);
-  static void foo_remove(struct mcb_device *mdev);
-
-4.3 Initializing the driver
-----------------------------
-   When the kernel is booted or your foo driver module is inserted, you have to
-   perform driver initialization. Usually it is enough to register your driver
-   module at the MCB core.
-
-
-  static int __init foo_init(void)
-  {
-          return mcb_register_driver(&foo_driver);
-  }
-  module_init(foo_init);
-
-  static void __exit foo_exit(void)
-  {
-          mcb_unregister_driver(&foo_driver);
-  }
-  module_exit(foo_exit);
-
-   The module_mcb_driver() macro can be used to reduce the above code.
-
-
-  module_mcb_driver(foo_driver);
+
+When a driver is loaded and the MCB devices it services are found, the MCB
+core will call the driver's probe callback method. When the driver is removed
+from the system, the MCB core will call the driver's remove callback method::
+
+	static init foo_probe(struct mcb_device *mdev, const struct mcb_device_id *id);
+	static void foo_remove(struct mcb_device *mdev);
+
+Initializing the driver
+-----------------------
+
+When the kernel is booted or your foo driver module is inserted, you have to
+perform driver initialization. Usually it is enough to register your driver
+module at the MCB core::
+
+	static int __init foo_init(void)
+	{
+		return mcb_register_driver(&foo_driver);
+	}
+	module_init(foo_init);
+
+	static void __exit foo_exit(void)
+	{
+		mcb_unregister_driver(&foo_driver);
+	}
+	module_exit(foo_exit);
+
+The module_mcb_driver() macro can be used to reduce the above code::
+
+	module_mcb_driver(foo_driver);
diff --git a/Documentation/networking/switchdev.txt b/Documentation/networking/switchdev.txt
index 3e7b946dea27..5e40e1f68873 100644
--- a/Documentation/networking/switchdev.txt
+++ b/Documentation/networking/switchdev.txt
@@ -228,7 +228,7 @@ Learning on the device port should be enabled, as well as learning_sync:
 	bridge link set dev DEV learning on self
 	bridge link set dev DEV learning_sync on self
 
-Learning_sync attribute enables syncing of the learned/forgotton FDB entry to
+Learning_sync attribute enables syncing of the learned/forgotten FDB entry to
 the bridge's FDB.  It's possible, but not optimal, to enable learning on the
 device port and on the bridge port, and disable learning_sync.
 
@@ -245,7 +245,7 @@ the responsibility of the port driver/device to age out these entries.  If the
 port device supports ageing, when the FDB entry expires, it will notify the
 driver which in turn will notify the bridge with SWITCHDEV_FDB_DEL.  If the
 device does not support ageing, the driver can simulate ageing using a
-garbage collection timer to monitor FBD entries.  Expired entries will be
+garbage collection timer to monitor FDB entries.  Expired entries will be
 notified to the bridge using SWITCHDEV_FDB_DEL.  See rocker driver for
 example of driver running ageing timer.
 
diff --git a/Documentation/networking/timestamping.txt b/Documentation/networking/timestamping.txt
index 196ba17cc344..1be0b6f9e0cb 100644
--- a/Documentation/networking/timestamping.txt
+++ b/Documentation/networking/timestamping.txt
@@ -44,8 +44,7 @@ timeval of SO_TIMESTAMP (ms).
 Supports multiple types of timestamp requests. As a result, this
 socket option takes a bitmap of flags, not a boolean. In
 
-  err = setsockopt(fd, SOL_SOCKET, SO_TIMESTAMPING, (void *) val,
-                   sizeof(val));
+  err = setsockopt(fd, SOL_SOCKET, SO_TIMESTAMPING, &val, sizeof(val));
 
 val is an integer with any of the following bits set. Setting other
 bit returns EINVAL and does not change the current state.
@@ -249,8 +248,7 @@ setsockopt to receive timestamps:
 
   __u32 val = SOF_TIMESTAMPING_SOFTWARE |
 	      SOF_TIMESTAMPING_OPT_ID /* or any other flag */;
-  err = setsockopt(fd, SOL_SOCKET, SO_TIMESTAMPING, (void *) val,
-                   sizeof(val));
+  err = setsockopt(fd, SOL_SOCKET, SO_TIMESTAMPING, &val, sizeof(val));
 
 
 1.4 Bytestream Timestamps
diff --git a/Documentation/nommu-mmap.txt b/Documentation/nommu-mmap.txt
index ae57b9ea0d41..69556f0d494b 100644
--- a/Documentation/nommu-mmap.txt
+++ b/Documentation/nommu-mmap.txt
@@ -1,6 +1,6 @@
-			 =============================
-			 NO-MMU MEMORY MAPPING SUPPORT
-			 =============================
+=============================
+No-MMU memory mapping support
+=============================
 
 The kernel has limited support for memory mapping under no-MMU conditions, such
 as are used in uClinux environments. From the userspace point of view, memory
@@ -16,7 +16,7 @@ the CLONE_VM flag.
 The behaviour is similar between the MMU and no-MMU cases, but not identical;
 and it's also much more restricted in the latter case:
 
- (*) Anonymous mapping, MAP_PRIVATE
+ (#) Anonymous mapping, MAP_PRIVATE
 
 	In the MMU case: VM regions backed by arbitrary pages; copy-on-write
 	across fork.
@@ -24,14 +24,14 @@ and it's also much more restricted in the latter case:
 	In the no-MMU case: VM regions backed by arbitrary contiguous runs of
 	pages.
 
- (*) Anonymous mapping, MAP_SHARED
+ (#) Anonymous mapping, MAP_SHARED
 
 	These behave very much like private mappings, except that they're
 	shared across fork() or clone() without CLONE_VM in the MMU case. Since
 	the no-MMU case doesn't support these, behaviour is identical to
 	MAP_PRIVATE there.
 
- (*) File, MAP_PRIVATE, PROT_READ / PROT_EXEC, !PROT_WRITE
+ (#) File, MAP_PRIVATE, PROT_READ / PROT_EXEC, !PROT_WRITE
 
 	In the MMU case: VM regions backed by pages read from file; changes to
 	the underlying file are reflected in the mapping; copied across fork.
@@ -56,7 +56,7 @@ and it's also much more restricted in the latter case:
 	   are visible in other processes (no MMU protection), but should not
 	   happen.
 
- (*) File, MAP_PRIVATE, PROT_READ / PROT_EXEC, PROT_WRITE
+ (#) File, MAP_PRIVATE, PROT_READ / PROT_EXEC, PROT_WRITE
 
 	In the MMU case: like the non-PROT_WRITE case, except that the pages in
 	question get copied before the write actually happens. From that point
@@ -66,7 +66,7 @@ and it's also much more restricted in the latter case:
 	In the no-MMU case: works much like the non-PROT_WRITE case, except
 	that a copy is always taken and never shared.
 
- (*) Regular file / blockdev, MAP_SHARED, PROT_READ / PROT_EXEC / PROT_WRITE
+ (#) Regular file / blockdev, MAP_SHARED, PROT_READ / PROT_EXEC / PROT_WRITE
 
 	In the MMU case: VM regions backed by pages read from file; changes to
 	pages written back to file; writes to file reflected into pages backing
@@ -74,7 +74,7 @@ and it's also much more restricted in the latter case:
 
 	In the no-MMU case: not supported.
 
- (*) Memory backed regular file, MAP_SHARED, PROT_READ / PROT_EXEC / PROT_WRITE
+ (#) Memory backed regular file, MAP_SHARED, PROT_READ / PROT_EXEC / PROT_WRITE
 
 	In the MMU case: As for ordinary regular files.
 
@@ -85,7 +85,7 @@ and it's also much more restricted in the latter case:
 	as for the MMU case. If the filesystem does not provide any such
 	support, then the mapping request will be denied.
 
- (*) Memory backed blockdev, MAP_SHARED, PROT_READ / PROT_EXEC / PROT_WRITE
+ (#) Memory backed blockdev, MAP_SHARED, PROT_READ / PROT_EXEC / PROT_WRITE
 
 	In the MMU case: As for ordinary regular files.
 
@@ -94,7 +94,7 @@ and it's also much more restricted in the latter case:
 	truncate being called. The ramdisk driver could do this if it allocated
 	all its memory as a contiguous array upfront.
 
- (*) Memory backed chardev, MAP_SHARED, PROT_READ / PROT_EXEC / PROT_WRITE
+ (#) Memory backed chardev, MAP_SHARED, PROT_READ / PROT_EXEC / PROT_WRITE
 
 	In the MMU case: As for ordinary regular files.
 
@@ -105,21 +105,20 @@ and it's also much more restricted in the latter case:
 	provide any such support, then the mapping request will be denied.
 
 
-============================
-FURTHER NOTES ON NO-MMU MMAP
+Further notes on no-MMU MMAP
 ============================
 
- (*) A request for a private mapping of a file may return a buffer that is not
+ (#) A request for a private mapping of a file may return a buffer that is not
      page-aligned.  This is because XIP may take place, and the data may not be
      paged aligned in the backing store.
 
- (*) A request for an anonymous mapping will always be page aligned.  If
+ (#) A request for an anonymous mapping will always be page aligned.  If
      possible the size of the request should be a power of two otherwise some
      of the space may be wasted as the kernel must allocate a power-of-2
      granule but will only discard the excess if appropriately configured as
      this has an effect on fragmentation.
 
- (*) The memory allocated by a request for an anonymous mapping will normally
+ (#) The memory allocated by a request for an anonymous mapping will normally
      be cleared by the kernel before being returned in accordance with the
      Linux man pages (ver 2.22 or later).
 
@@ -145,24 +144,23 @@ FURTHER NOTES ON NO-MMU MMAP
      uClibc uses this to speed up malloc(), and the ELF-FDPIC binfmt uses this
      to allocate the brk and stack region.
 
- (*) A list of all the private copy and anonymous mappings on the system is
+ (#) A list of all the private copy and anonymous mappings on the system is
      visible through /proc/maps in no-MMU mode.
 
- (*) A list of all the mappings in use by a process is visible through
+ (#) A list of all the mappings in use by a process is visible through
      /proc/<pid>/maps in no-MMU mode.
 
- (*) Supplying MAP_FIXED or a requesting a particular mapping address will
+ (#) Supplying MAP_FIXED or a requesting a particular mapping address will
      result in an error.
 
- (*) Files mapped privately usually have to have a read method provided by the
+ (#) Files mapped privately usually have to have a read method provided by the
      driver or filesystem so that the contents can be read into the memory
      allocated if mmap() chooses not to map the backing device directly. An
      error will result if they don't. This is most likely to be encountered
      with character device files, pipes, fifos and sockets.
 
 
-==========================
-INTERPROCESS SHARED MEMORY
+Interprocess shared memory
 ==========================
 
 Both SYSV IPC SHM shared memory and POSIX shared memory is supported in NOMMU
@@ -170,8 +168,7 @@ mode.  The former through the usual mechanism, the latter through files created
 on ramfs or tmpfs mounts.
 
 
-=======
-FUTEXES
+Futexes
 =======
 
 Futexes are supported in NOMMU mode if the arch supports them.  An error will
@@ -180,12 +177,11 @@ mappings made by a process or if the mapping in which the address lies does not
 support futexes (such as an I/O chardev mapping).
 
 
-=============
-NO-MMU MREMAP
+No-MMU mremap
 =============
 
 The mremap() function is partially supported.  It may change the size of a
-mapping, and may move it[*] if MREMAP_MAYMOVE is specified and if the new size
+mapping, and may move it [#]_ if MREMAP_MAYMOVE is specified and if the new size
 of the mapping exceeds the size of the slab object currently occupied by the
 memory to which the mapping refers, or if a smaller slab object could be used.
 
@@ -200,11 +196,10 @@ a previously mapped object.  It may not be used to create holes in existing
 mappings, move parts of existing mappings or resize parts of mappings.  It must
 act on a complete mapping.
 
-[*] Not currently supported.
+.. [#] Not currently supported.
 
 
-============================================
-PROVIDING SHAREABLE CHARACTER DEVICE SUPPORT
+Providing shareable character device support
 ============================================
 
 To provide shareable character device support, a driver must provide a
@@ -235,7 +230,7 @@ direct the call to the device-specific driver. Under such circumstances, the
 mapping request will be rejected if NOMMU_MAP_COPY is not specified, and a
 copy mapped otherwise.
 
-IMPORTANT NOTE:
+.. important::
 
 	Some types of device may present a different appearance to anyone
 	looking at them in certain modes. Flash chips can be like this; for
@@ -249,8 +244,7 @@ IMPORTANT NOTE:
 	circumstances!
 
 
-==============================================
-PROVIDING SHAREABLE MEMORY-BACKED FILE SUPPORT
+Providing shareable memory-backed file support
 ==============================================
 
 Provision of shared mappings on memory backed files is similar to the provision
@@ -267,8 +261,7 @@ Memory backed devices are indicated by the mapping's backing device info having
 the memory_backed flag set.
 
 
-========================================
-PROVIDING SHAREABLE BLOCK DEVICE SUPPORT
+Providing shareable block device support
 ========================================
 
 Provision of shared mappings on block device files is exactly the same as for
@@ -276,8 +269,7 @@ character devices. If there isn't a real device underneath, then the driver
 should allocate sufficient contiguous memory to honour any supported mapping.
 
 
-=================================
-ADJUSTING PAGE TRIMMING BEHAVIOUR
+Adjusting page trimming behaviour
 =================================
 
 NOMMU mmap automatically rounds up to the nearest power-of-2 number of pages
@@ -288,4 +280,4 @@ allocator.  In order to retain finer-grained control over fragmentation, this
 behaviour can either be disabled completely, or bumped up to a higher page
 watermark where trimming begins.
 
-Page trimming behaviour is configurable via the sysctl `vm.nr_trim_pages'.
+Page trimming behaviour is configurable via the sysctl ``vm.nr_trim_pages``.
diff --git a/Documentation/ntb.txt b/Documentation/ntb.txt
index 1d9bbabb6c79..a043854d28df 100644
--- a/Documentation/ntb.txt
+++ b/Documentation/ntb.txt
@@ -1,16 +1,21 @@
-# NTB Drivers
+===========
+NTB Drivers
+===========
 
 NTB (Non-Transparent Bridge) is a type of PCI-Express bridge chip that connects
-the separate memory systems of two computers to the same PCI-Express fabric.
-Existing NTB hardware supports a common feature set, including scratchpad
-registers, doorbell registers, and memory translation windows.  Scratchpad
-registers are read-and-writable registers that are accessible from either side
-of the device, so that peers can exchange a small amount of information at a
-fixed address.  Doorbell registers provide a way for peers to send interrupt
-events.  Memory windows allow translated read and write access to the peer
-memory.
-
-## NTB Core Driver (ntb)
+the separate memory systems of two or more computers to the same PCI-Express
+fabric. Existing NTB hardware supports a common feature set: doorbell
+registers and memory translation windows, as well as non common features like
+scratchpad and message registers. Scratchpad registers are read-and-writable
+registers that are accessible from either side of the device, so that peers can
+exchange a small amount of information at a fixed address. Message registers can
+be utilized for the same purpose. Additionally they are provided with with
+special status bits to make sure the information isn't rewritten by another
+peer. Doorbell registers provide a way for peers to send interrupt events.
+Memory windows allow translated read and write access to the peer memory.
+
+NTB Core Driver (ntb)
+=====================
 
 The NTB core driver defines an api wrapping the common feature set, and allows
 clients interested in NTB features to discover NTB the devices supported by
@@ -18,7 +23,8 @@ hardware drivers.  The term "client" is used here to mean an upper layer
 component making use of the NTB api.  The term "driver," or "hardware driver,"
 is used here to mean a driver for a specific vendor and model of NTB hardware.
 
-## NTB Client Drivers
+NTB Client Drivers
+==================
 
 NTB client drivers should register with the NTB core driver.  After
 registering, the client probe and remove functions will be called appropriately
@@ -26,7 +32,90 @@ as ntb hardware, or hardware drivers, are inserted and removed.  The
 registration uses the Linux Device framework, so it should feel familiar to
 anyone who has written a pci driver.
 
-### NTB Transport Client (ntb\_transport) and NTB Netdev (ntb\_netdev)
+NTB Typical client driver implementation
+----------------------------------------
+
+Primary purpose of NTB is to share some peace of memory between at least two
+systems. So the NTB device features like Scratchpad/Message registers are
+mainly used to perform the proper memory window initialization. Typically
+there are two types of memory window interfaces supported by the NTB API:
+inbound translation configured on the local ntb port and outbound translation
+configured by the peer, on the peer ntb port. The first type is
+depicted on the next figure
+
+Inbound translation:
+ Memory:              Local NTB Port:      Peer NTB Port:      Peer MMIO:
+  ____________
+ | dma-mapped |-ntb_mw_set_trans(addr)  |
+ | memory     |        _v____________   |   ______________
+ | (addr)     |<======| MW xlat addr |<====| MW base addr |<== memory-mapped IO
+ |------------|       |--------------|  |  |--------------|
+
+So typical scenario of the first type memory window initialization looks:
+1) allocate a memory region, 2) put translated address to NTB config,
+3) somehow notify a peer device of performed initialization, 4) peer device
+maps corresponding outbound memory window so to have access to the shared
+memory region.
+
+The second type of interface, that implies the shared windows being
+initialized by a peer device, is depicted on the figure:
+
+Outbound translation:
+ Memory:        Local NTB Port:    Peer NTB Port:      Peer MMIO:
+  ____________                      ______________
+ | dma-mapped |                |   | MW base addr |<== memory-mapped IO
+ | memory     |                |   |--------------|
+ | (addr)     |<===================| MW xlat addr |<-ntb_peer_mw_set_trans(addr)
+ |------------|                |   |--------------|
+
+Typical scenario of the second type interface initialization would be:
+1) allocate a memory region, 2) somehow deliver a translated address to a peer
+device, 3) peer puts the translated address to NTB config, 4) peer device maps
+outbound memory window so to have access to the shared memory region.
+
+As one can see the described scenarios can be combined in one portable
+algorithm.
+ Local device:
+  1) Allocate memory for a shared window
+  2) Initialize memory window by translated address of the allocated region
+     (it may fail if local memory window initialization is unsupported)
+  3) Send the translated address and memory window index to a peer device
+ Peer device:
+  1) Initialize memory window with retrieved address of the allocated
+     by another device memory region (it may fail if peer memory window
+     initialization is unsupported)
+  2) Map outbound memory window
+
+In accordance with this scenario, the NTB Memory Window API can be used as
+follows:
+ Local device:
+  1) ntb_mw_count(pidx) - retrieve number of memory ranges, which can
+     be allocated for memory windows between local device and peer device
+     of port with specified index.
+  2) ntb_get_align(pidx, midx) - retrieve parameters restricting the
+     shared memory region alignment and size. Then memory can be properly
+     allocated.
+  3) Allocate physically contiguous memory region in compliance with
+     restrictions retrieved in 2).
+  4) ntb_mw_set_trans(pidx, midx) - try to set translation address of
+     the memory window with specified index for the defined peer device
+     (it may fail if local translated address setting is not supported)
+  5) Send translated base address (usually together with memory window
+     number) to the peer device using, for instance, scratchpad or message
+     registers.
+ Peer device:
+  1) ntb_peer_mw_set_trans(pidx, midx) - try to set received from other
+     device (related to pidx) translated address for specified memory
+     window. It may fail if retrieved address, for instance, exceeds
+     maximum possible address or isn't properly aligned.
+  2) ntb_peer_mw_get_addr(widx) - retrieve MMIO address to map the memory
+     window so to have an access to the shared memory.
+
+Also it is worth to note, that method ntb_mw_count(pidx) should return the
+same value as ntb_peer_mw_count() on the peer with port index - pidx.
+
+NTB Transport Client (ntb\_transport) and NTB Netdev (ntb\_netdev)
+------------------------------------------------------------------
 
 The primary client for NTB is the Transport client, used in tandem with NTB
 Netdev.  These drivers function together to create a logical link to the peer,
@@ -37,7 +126,8 @@ Transport queue pair.  Network data is copied between socket buffers and the
 Transport queue pair buffer.  The Transport client may be used for other things
 besides Netdev, however no other applications have yet been written.
 
-### NTB Ping Pong Test Client (ntb\_pingpong)
+NTB Ping Pong Test Client (ntb\_pingpong)
+-----------------------------------------
 
 The Ping Pong test client serves as a demonstration to exercise the doorbell
 and scratchpad registers of NTB hardware, and as an example simple NTB client.
@@ -64,7 +154,8 @@ Module Parameters:
 * dyndbg - It is suggested to specify dyndbg=+p when loading this module, and
 	then to observe debugging output on the console.
 
-### NTB Tool Test Client (ntb\_tool)
+NTB Tool Test Client (ntb\_tool)
+--------------------------------
 
 The Tool test client serves for debugging, primarily, ntb hardware and drivers.
 The Tool provides access through debugfs for reading, setting, and clearing the
@@ -74,48 +165,60 @@ The Tool does not currently have any module parameters.
 
 Debugfs Files:
 
-* *debugfs*/ntb\_tool/*hw*/ - A directory in debugfs will be created for each
+* *debugfs*/ntb\_tool/*hw*/
+	A directory in debugfs will be created for each
 	NTB device probed by the tool.  This directory is shortened to *hw*
 	below.
-* *hw*/db - This file is used to read, set, and clear the local doorbell.  Not
+* *hw*/db
+	This file is used to read, set, and clear the local doorbell.  Not
 	all operations may be supported by all hardware.  To read the doorbell,
 	read the file.  To set the doorbell, write `s` followed by the bits to
 	set (eg: `echo 's 0x0101' > db`).  To clear the doorbell, write `c`
 	followed by the bits to clear.
-* *hw*/mask - This file is used to read, set, and clear the local doorbell mask.
+* *hw*/mask
+	This file is used to read, set, and clear the local doorbell mask.
 	See *db* for details.
-* *hw*/peer\_db - This file is used to read, set, and clear the peer doorbell.
+* *hw*/peer\_db
+	This file is used to read, set, and clear the peer doorbell.
 	See *db* for details.
-* *hw*/peer\_mask - This file is used to read, set, and clear the peer doorbell
+* *hw*/peer\_mask
+	This file is used to read, set, and clear the peer doorbell
 	mask.  See *db* for details.
-* *hw*/spad - This file is used to read and write local scratchpads.  To read
+* *hw*/spad
+	This file is used to read and write local scratchpads.  To read
 	the values of all scratchpads, read the file.  To write values, write a
 	series of pairs of scratchpad number and value
 	(eg: `echo '4 0x123 7 0xabc' > spad`
 	# to set scratchpads `4` and `7` to `0x123` and `0xabc`, respectively).
-* *hw*/peer\_spad - This file is used to read and write peer scratchpads.  See
+* *hw*/peer\_spad
+	This file is used to read and write peer scratchpads.  See
 	*spad* for details.
 
-## NTB Hardware Drivers
+NTB Hardware Drivers
+====================
 
 NTB hardware drivers should register devices with the NTB core driver.  After
 registering, clients probe and remove functions will be called.
 
-### NTB Intel Hardware Driver (ntb\_hw\_intel)
+NTB Intel Hardware Driver (ntb\_hw\_intel)
+------------------------------------------
 
 The Intel hardware driver supports NTB on Xeon and Atom CPUs.
 
 Module Parameters:
 
-* b2b\_mw\_idx - If the peer ntb is to be accessed via a memory window, then use
+* b2b\_mw\_idx
+	If the peer ntb is to be accessed via a memory window, then use
 	this memory window to access the peer ntb.  A value of zero or positive
 	starts from the first mw idx, and a negative value starts from the last
 	mw idx.  Both sides MUST set the same value here!  The default value is
 	`-1`.
-* b2b\_mw\_share - If the peer ntb is to be accessed via a memory window, and if
+* b2b\_mw\_share
+	If the peer ntb is to be accessed via a memory window, and if
 	the memory window is large enough, still allow the client to use the
 	second half of the memory window for address translation to the peer.
-* xeon\_b2b\_usd\_bar2\_addr64 - If using B2B topology on Xeon hardware, use
+* xeon\_b2b\_usd\_bar2\_addr64
+	If using B2B topology on Xeon hardware, use
 	this 64 bit address on the bus between the NTB devices for the window
 	at BAR2, on the upstream side of the link.
 * xeon\_b2b\_usd\_bar4\_addr64 - See *xeon\_b2b\_bar2\_addr64*.
diff --git a/Documentation/numastat.txt b/Documentation/numastat.txt
index 520327790d54..aaf1667489f8 100644
--- a/Documentation/numastat.txt
+++ b/Documentation/numastat.txt
@@ -1,10 +1,12 @@
-
+===============================
 Numa policy hit/miss statistics
+===============================
 
 /sys/devices/system/node/node*/numastat
 
 All units are pages. Hugepages have separate counters.
 
+=============== ============================================================
 numa_hit	A process wanted to allocate memory from this node,
 		and succeeded.
 
@@ -20,6 +22,7 @@ other_node	A process ran on this node and got memory from another node.
 
 interleave_hit 	Interleaving wanted to allocate from this node
 		and succeeded.
+=============== ============================================================
 
 For easier reading you can use the numastat utility from the numactl package
 (http://oss.sgi.com/projects/libnuma/). Note that it only works
diff --git a/Documentation/padata.txt b/Documentation/padata.txt
index 7ddfe216a0aa..b103d0c82000 100644
--- a/Documentation/padata.txt
+++ b/Documentation/padata.txt
@@ -1,5 +1,8 @@
+=======================================
 The padata parallel execution mechanism
-Last updated for 2.6.36
+=======================================
+
+:Last updated: for 2.6.36
 
 Padata is a mechanism by which the kernel can farm work out to be done in
 parallel on multiple CPUs while retaining the ordering of tasks.  It was
@@ -9,7 +12,7 @@ those packets.  The crypto developers made a point of writing padata in a
 sufficiently general fashion that it could be put to other uses as well.
 
 The first step in using padata is to set up a padata_instance structure for
-overall control of how tasks are to be run:
+overall control of how tasks are to be run::
 
     #include <linux/padata.h>
 
@@ -24,7 +27,7 @@ The workqueue wq is where the work will actually be done; it should be
 a multithreaded queue, naturally.
 
 To allocate a padata instance with the cpu_possible_mask for both
-cpumasks this helper function can be used:
+cpumasks this helper function can be used::
 
     struct padata_instance *padata_alloc_possible(struct workqueue_struct *wq);
 
@@ -36,7 +39,7 @@ it is legal to supply a cpumask to padata that contains offline CPUs.
 Once an offline CPU in the user supplied cpumask comes online, padata
 is going to use it.
 
-There are functions for enabling and disabling the instance:
+There are functions for enabling and disabling the instance::
 
     int padata_start(struct padata_instance *pinst);
     void padata_stop(struct padata_instance *pinst);
@@ -48,7 +51,7 @@ padata cpumask contains no active CPU (flag not set).
 padata_stop clears the flag and blocks until the padata instance
 is unused.
 
-The list of CPUs to be used can be adjusted with these functions:
+The list of CPUs to be used can be adjusted with these functions::
 
     int padata_set_cpumasks(struct padata_instance *pinst,
 			    cpumask_var_t pcpumask,
@@ -71,12 +74,12 @@ padata_add_cpu/padata_remove_cpu are used. cpu specifies the CPU to add or
 remove and mask is one of PADATA_CPU_SERIAL, PADATA_CPU_PARALLEL.
 
 If a user is interested in padata cpumask changes, he can register to
-the padata cpumask change notifier:
+the padata cpumask change notifier::
 
     int padata_register_cpumask_notifier(struct padata_instance *pinst,
 					 struct notifier_block *nblock);
 
-To unregister from that notifier:
+To unregister from that notifier::
 
     int padata_unregister_cpumask_notifier(struct padata_instance *pinst,
 					   struct notifier_block *nblock);
@@ -84,7 +87,7 @@ To unregister from that notifier:
 The padata cpumask change notifier notifies about changes of the usable
 cpumasks, i.e. the subset of active CPUs in the user supplied cpumask.
 
-Padata calls the notifier chain with:
+Padata calls the notifier chain with::
 
     blocking_notifier_call_chain(&pinst->cpumask_change_notifier,
 				 notification_mask,
@@ -95,7 +98,7 @@ is one of PADATA_CPU_SERIAL, PADATA_CPU_PARALLEL and cpumask is a pointer
 to a struct padata_cpumask that contains the new cpumask information.
 
 Actually submitting work to the padata instance requires the creation of a
-padata_priv structure:
+padata_priv structure::
 
     struct padata_priv {
         /* Other stuff here... */
@@ -110,7 +113,7 @@ parallel() and serial() functions should be provided.  Those functions will
 be called in the process of getting the work done as we will see
 momentarily.
 
-The submission of work is done with:
+The submission of work is done with::
 
     int padata_do_parallel(struct padata_instance *pinst,
 		           struct padata_priv *padata, int cb_cpu);
@@ -138,7 +141,7 @@ need not be completed during this call, but, if parallel() leaves work
 outstanding, it should be prepared to be called again with a new job before
 the previous one completes.  When a task does complete, parallel() (or
 whatever function actually finishes the job) should inform padata of the
-fact with a call to:
+fact with a call to::
 
     void padata_do_serial(struct padata_priv *padata);
 
@@ -151,7 +154,7 @@ pains to ensure that tasks are completed in the order in which they were
 submitted.
 
 The one remaining function in the padata API should be called to clean up
-when a padata instance is no longer needed:
+when a padata instance is no longer needed::
 
     void padata_free(struct padata_instance *pinst);
 
diff --git a/Documentation/parport-lowlevel.txt b/Documentation/parport-lowlevel.txt
index 120eb20dbb09..0633d70ffda7 100644
--- a/Documentation/parport-lowlevel.txt
+++ b/Documentation/parport-lowlevel.txt
@@ -1,11 +1,12 @@
+===============================
 PARPORT interface documentation
--------------------------------
+===============================
 
-Time-stamp: <2000-02-24 13:30:20 twaugh>
+:Time-stamp: <2000-02-24 13:30:20 twaugh>
 
 Described here are the following functions:
 
-Global functions:
+Global functions::
   parport_register_driver
   parport_unregister_driver
   parport_enumerate
@@ -31,7 +32,8 @@ Global functions:
   parport_set_timeout
 
 Port functions (can be overridden by low-level drivers):
-  SPP:
+
+  SPP::
     port->ops->read_data
     port->ops->write_data
     port->ops->read_status
@@ -43,23 +45,23 @@ Port functions (can be overridden by low-level drivers):
     port->ops->data_forward
     port->ops->data_reverse
 
-  EPP:
+  EPP::
     port->ops->epp_write_data
     port->ops->epp_read_data
     port->ops->epp_write_addr
     port->ops->epp_read_addr
 
-  ECP:
+  ECP::
     port->ops->ecp_write_data
     port->ops->ecp_read_data
     port->ops->ecp_write_addr
 
-  Other:
+  Other::
     port->ops->nibble_read_data
     port->ops->byte_read_data
     port->ops->compat_write_data
 
-The parport subsystem comprises 'parport' (the core port-sharing
+The parport subsystem comprises ``parport`` (the core port-sharing
 code), and a variety of low-level drivers that actually do the port
 accesses.  Each low-level driver handles a particular style of port
 (PC, Amiga, and so on).
@@ -70,14 +72,14 @@ into global functions and port functions.
 The global functions are mostly for communicating between the device
 driver and the parport subsystem: acquiring a list of available ports,
 claiming a port for exclusive use, and so on.  They also include
-'generic' functions for doing standard things that will work on any
+``generic`` functions for doing standard things that will work on any
 IEEE 1284-capable architecture.
 
 The port functions are provided by the low-level drivers, although the
-core parport module provides generic 'defaults' for some routines.
+core parport module provides generic ``defaults`` for some routines.
 The port functions can be split into three groups: SPP, EPP, and ECP.
 
-SPP (Standard Parallel Port) functions modify so-called 'SPP'
+SPP (Standard Parallel Port) functions modify so-called ``SPP``
 registers: data, status, and control.  The hardware may not actually
 have registers exactly like that, but the PC does and this interface is
 modelled after common PC implementations.  Other low-level drivers may
@@ -95,58 +97,63 @@ to cope with peripherals that only tenuously support IEEE 1284, a
 low-level driver specific function is provided, for altering 'fudge
 factors'.
 
-GLOBAL FUNCTIONS
-----------------
+Global functions
+================
 
 parport_register_driver - register a device driver with parport
------------------------
+---------------------------------------------------------------
 
 SYNOPSIS
+^^^^^^^^
+
+::
 
-#include <linux/parport.h>
+	#include <linux/parport.h>
 
-struct parport_driver {
-	const char *name;
-	void (*attach) (struct parport *);
-	void (*detach) (struct parport *);
-	struct parport_driver *next;
-};
-int parport_register_driver (struct parport_driver *driver);
+	struct parport_driver {
+		const char *name;
+		void (*attach) (struct parport *);
+		void (*detach) (struct parport *);
+		struct parport_driver *next;
+	};
+	int parport_register_driver (struct parport_driver *driver);
 
 DESCRIPTION
+^^^^^^^^^^^
 
 In order to be notified about parallel ports when they are detected,
 parport_register_driver should be called.  Your driver will
 immediately be notified of all ports that have already been detected,
 and of each new port as low-level drivers are loaded.
 
-A 'struct parport_driver' contains the textual name of your driver,
+A ``struct parport_driver`` contains the textual name of your driver,
 a pointer to a function to handle new ports, and a pointer to a
 function to handle ports going away due to a low-level driver
 unloading.  Ports will only be detached if they are not being used
 (i.e. there are no devices registered on them).
 
-The visible parts of the 'struct parport *' argument given to
-attach/detach are:
-
-struct parport
-{
-	struct parport *next; /* next parport in list */
-	const char *name;     /* port's name */
-	unsigned int modes;   /* bitfield of hardware modes */
-	struct parport_device_info probe_info;
-			      /* IEEE1284 info */
-	int number;           /* parport index */
-	struct parport_operations *ops;
-	...
-};
+The visible parts of the ``struct parport *`` argument given to
+attach/detach are::
+
+	struct parport
+	{
+		struct parport *next; /* next parport in list */
+		const char *name;     /* port's name */
+		unsigned int modes;   /* bitfield of hardware modes */
+		struct parport_device_info probe_info;
+				/* IEEE1284 info */
+		int number;           /* parport index */
+		struct parport_operations *ops;
+		...
+	};
 
 There are other members of the structure, but they should not be
 touched.
 
-The 'modes' member summarises the capabilities of the underlying
+The ``modes`` member summarises the capabilities of the underlying
 hardware.  It consists of flags which may be bitwise-ored together:
 
+  ============================= ===============================================
   PARPORT_MODE_PCSPP		IBM PC registers are available,
 				i.e. functions that act on data,
 				control and status registers are
@@ -169,297 +176,351 @@ hardware.  It consists of flags which may be bitwise-ored together:
 				GFP_DMA flag with kmalloc) to the
 				low-level driver in order to take
 				advantage of it.
+  ============================= ===============================================
 
-There may be other flags in 'modes' as well.
+There may be other flags in ``modes`` as well.
 
-The contents of 'modes' is advisory only.  For example, if the
-hardware is capable of DMA, and PARPORT_MODE_DMA is in 'modes', it
+The contents of ``modes`` is advisory only.  For example, if the
+hardware is capable of DMA, and PARPORT_MODE_DMA is in ``modes``, it
 doesn't necessarily mean that DMA will always be used when possible.
 Similarly, hardware that is capable of assisting ECP transfers won't
 necessarily be used.
 
 RETURN VALUE
+^^^^^^^^^^^^
 
 Zero on success, otherwise an error code.
 
 ERRORS
+^^^^^^
 
 None. (Can it fail? Why return int?)
 
 EXAMPLE
+^^^^^^^
 
-static void lp_attach (struct parport *port)
-{
-	...
-	private = kmalloc (...);
-	dev[count++] = parport_register_device (...);
-	...
-}
+::
 
-static void lp_detach (struct parport *port)
-{
-	...
-}
+	static void lp_attach (struct parport *port)
+	{
+		...
+		private = kmalloc (...);
+		dev[count++] = parport_register_device (...);
+		...
+	}
 
-static struct parport_driver lp_driver = {
-	"lp",
-	lp_attach,
-	lp_detach,
-	NULL /* always put NULL here */
-};
+	static void lp_detach (struct parport *port)
+	{
+		...
+	}
 
-int lp_init (void)
-{
-	...
-	if (parport_register_driver (&lp_driver)) {
-		/* Failed; nothing we can do. */
-		return -EIO;
+	static struct parport_driver lp_driver = {
+		"lp",
+		lp_attach,
+		lp_detach,
+		NULL /* always put NULL here */
+	};
+
+	int lp_init (void)
+	{
+		...
+		if (parport_register_driver (&lp_driver)) {
+			/* Failed; nothing we can do. */
+			return -EIO;
+		}
+		...
 	}
-	...
-}
+
 
 SEE ALSO
+^^^^^^^^
 
 parport_unregister_driver, parport_register_device, parport_enumerate
-
+
+
+
 parport_unregister_driver - tell parport to forget about this driver
--------------------------
+--------------------------------------------------------------------
 
 SYNOPSIS
+^^^^^^^^
 
-#include <linux/parport.h>
+::
 
-struct parport_driver {
-	const char *name;
-	void (*attach) (struct parport *);
-	void (*detach) (struct parport *);
-	struct parport_driver *next;
-};
-void parport_unregister_driver (struct parport_driver *driver);
+	#include <linux/parport.h>
+
+	struct parport_driver {
+		const char *name;
+		void (*attach) (struct parport *);
+		void (*detach) (struct parport *);
+		struct parport_driver *next;
+	};
+	void parport_unregister_driver (struct parport_driver *driver);
 
 DESCRIPTION
+^^^^^^^^^^^
 
 This tells parport not to notify the device driver of new ports or of
 ports going away.  Registered devices belonging to that driver are NOT
 unregistered: parport_unregister_device must be used for each one.
 
 EXAMPLE
+^^^^^^^
 
-void cleanup_module (void)
-{
-	...
-	/* Stop notifications. */
-	parport_unregister_driver (&lp_driver);
+::
 
-	/* Unregister devices. */
-	for (i = 0; i < NUM_DEVS; i++)
-		parport_unregister_device (dev[i]);
-	...
-}
+	void cleanup_module (void)
+	{
+		...
+		/* Stop notifications. */
+		parport_unregister_driver (&lp_driver);
+
+		/* Unregister devices. */
+		for (i = 0; i < NUM_DEVS; i++)
+			parport_unregister_device (dev[i]);
+		...
+	}
 
 SEE ALSO
+^^^^^^^^
 
 parport_register_driver, parport_enumerate
-
+
+
+
 parport_enumerate - retrieve a list of parallel ports (DEPRECATED)
------------------
+------------------------------------------------------------------
 
 SYNOPSIS
+^^^^^^^^
 
-#include <linux/parport.h>
+::
 
-struct parport *parport_enumerate (void);
+	#include <linux/parport.h>
+
+	struct parport *parport_enumerate (void);
 
 DESCRIPTION
+^^^^^^^^^^^
 
 Retrieve the first of a list of valid parallel ports for this machine.
-Successive parallel ports can be found using the 'struct parport
-*next' element of the 'struct parport *' that is returned.  If 'next'
+Successive parallel ports can be found using the ``struct parport
+*next`` element of the ``struct parport *`` that is returned.  If ``next``
 is NULL, there are no more parallel ports in the list.  The number of
 ports in the list will not exceed PARPORT_MAX.
 
 RETURN VALUE
+^^^^^^^^^^^^
 
-A 'struct parport *' describing a valid parallel port for the machine,
+A ``struct parport *`` describing a valid parallel port for the machine,
 or NULL if there are none.
 
 ERRORS
+^^^^^^
 
 This function can return NULL to indicate that there are no parallel
 ports to use.
 
 EXAMPLE
+^^^^^^^
+
+::
 
-int detect_device (void)
-{
-	struct parport *port;
+	int detect_device (void)
+	{
+		struct parport *port;
+
+		for (port = parport_enumerate ();
+		port != NULL;
+		port = port->next) {
+			/* Try to detect a device on the port... */
+			...
+		}
+		}
 
-	for (port = parport_enumerate ();
-	     port != NULL;
-	     port = port->next) {
-		/* Try to detect a device on the port... */
 		...
-             }
 	}
 
-	...
-}
-
 NOTES
+^^^^^
 
 parport_enumerate is deprecated; parport_register_driver should be
 used instead.
 
 SEE ALSO
+^^^^^^^^
 
 parport_register_driver, parport_unregister_driver
-
+
+
+
 parport_register_device - register to use a port
------------------------
+------------------------------------------------
 
 SYNOPSIS
+^^^^^^^^
 
-#include <linux/parport.h>
+::
 
-typedef int (*preempt_func) (void *handle);
-typedef void (*wakeup_func) (void *handle);
-typedef int (*irq_func) (int irq, void *handle, struct pt_regs *);
+	#include <linux/parport.h>
 
-struct pardevice *parport_register_device(struct parport *port,
-                                          const char *name,
-                                          preempt_func preempt,
-                                          wakeup_func wakeup,
-                                          irq_func irq,
-                                          int flags,
-                                          void *handle);
+	typedef int (*preempt_func) (void *handle);
+	typedef void (*wakeup_func) (void *handle);
+	typedef int (*irq_func) (int irq, void *handle, struct pt_regs *);
+
+	struct pardevice *parport_register_device(struct parport *port,
+						  const char *name,
+						  preempt_func preempt,
+						  wakeup_func wakeup,
+						  irq_func irq,
+						  int flags,
+						  void *handle);
 
 DESCRIPTION
+^^^^^^^^^^^
 
 Use this function to register your device driver on a parallel port
-('port').  Once you have done that, you will be able to use
+(``port``).  Once you have done that, you will be able to use
 parport_claim and parport_release in order to use the port.
 
-The ('name') argument is the name of the device that appears in /proc
+The (``name``) argument is the name of the device that appears in /proc
 filesystem. The string must be valid for the whole lifetime of the
 device (until parport_unregister_device is called).
 
 This function will register three callbacks into your driver:
-'preempt', 'wakeup' and 'irq'.  Each of these may be NULL in order to
+``preempt``, ``wakeup`` and ``irq``.  Each of these may be NULL in order to
 indicate that you do not want a callback.
 
-When the 'preempt' function is called, it is because another driver
-wishes to use the parallel port.  The 'preempt' function should return
+When the ``preempt`` function is called, it is because another driver
+wishes to use the parallel port.  The ``preempt`` function should return
 non-zero if the parallel port cannot be released yet -- if zero is
 returned, the port is lost to another driver and the port must be
 re-claimed before use.
 
-The 'wakeup' function is called once another driver has released the
+The ``wakeup`` function is called once another driver has released the
 port and no other driver has yet claimed it.  You can claim the
-parallel port from within the 'wakeup' function (in which case the
+parallel port from within the ``wakeup`` function (in which case the
 claim is guaranteed to succeed), or choose not to if you don't need it
 now.
 
 If an interrupt occurs on the parallel port your driver has claimed,
-the 'irq' function will be called. (Write something about shared
+the ``irq`` function will be called. (Write something about shared
 interrupts here.)
 
-The 'handle' is a pointer to driver-specific data, and is passed to
+The ``handle`` is a pointer to driver-specific data, and is passed to
 the callback functions.
 
-'flags' may be a bitwise combination of the following flags:
+``flags`` may be a bitwise combination of the following flags:
 
+  ===================== =================================================
         Flag            Meaning
+  ===================== =================================================
   PARPORT_DEV_EXCL	The device cannot share the parallel port at all.
 			Use this only when absolutely necessary.
+  ===================== =================================================
 
 The typedefs are not actually defined -- they are only shown in order
 to make the function prototype more readable.
 
-The visible parts of the returned 'struct pardevice' are:
+The visible parts of the returned ``struct pardevice`` are::
 
-struct pardevice {
-	struct parport *port;	/* Associated port */
-	void *private;		/* Device driver's 'handle' */
-	...
-};
+	struct pardevice {
+		struct parport *port;	/* Associated port */
+		void *private;		/* Device driver's 'handle' */
+		...
+	};
 
 RETURN VALUE
+^^^^^^^^^^^^
 
-A 'struct pardevice *': a handle to the registered parallel port
+A ``struct pardevice *``: a handle to the registered parallel port
 device that can be used for parport_claim, parport_release, etc.
 
 ERRORS
+^^^^^^
 
 A return value of NULL indicates that there was a problem registering
 a device on that port.
 
 EXAMPLE
+^^^^^^^
+
+::
+
+	static int preempt (void *handle)
+	{
+		if (busy_right_now)
+			return 1;
+
+		must_reclaim_port = 1;
+		return 0;
+	}
+
+	static void wakeup (void *handle)
+	{
+		struct toaster *private = handle;
+		struct pardevice *dev = private->dev;
+		if (!dev) return; /* avoid races */
+
+		if (want_port)
+			parport_claim (dev);
+	}
+
+	static int toaster_detect (struct toaster *private, struct parport *port)
+	{
+		private->dev = parport_register_device (port, "toaster", preempt,
+							wakeup, NULL, 0,
+							private);
+		if (!private->dev)
+			/* Couldn't register with parport. */
+			return -EIO;
 
-static int preempt (void *handle)
-{
-	if (busy_right_now)
-		return 1;
-
-	must_reclaim_port = 1;
-	return 0;
-}
-
-static void wakeup (void *handle)
-{
-	struct toaster *private = handle;
-	struct pardevice *dev = private->dev;
-	if (!dev) return; /* avoid races */
-
-	if (want_port)
-		parport_claim (dev);
-}
-
-static int toaster_detect (struct toaster *private, struct parport *port)
-{
-	private->dev = parport_register_device (port, "toaster", preempt,
-					        wakeup, NULL, 0,
-						private);
-	if (!private->dev)
-		/* Couldn't register with parport. */
-		return -EIO;
-
-	must_reclaim_port = 0;
-	busy_right_now = 1;
-	parport_claim_or_block (private->dev);
-	...
-	/* Don't need the port while the toaster warms up. */
-	busy_right_now = 0;
-	...
-	busy_right_now = 1;
-	if (must_reclaim_port) {
-		parport_claim_or_block (private->dev);
 		must_reclaim_port = 0;
+		busy_right_now = 1;
+		parport_claim_or_block (private->dev);
+		...
+		/* Don't need the port while the toaster warms up. */
+		busy_right_now = 0;
+		...
+		busy_right_now = 1;
+		if (must_reclaim_port) {
+			parport_claim_or_block (private->dev);
+			must_reclaim_port = 0;
+		}
+		...
 	}
-	...
-}
 
 SEE ALSO
+^^^^^^^^
 
 parport_unregister_device, parport_claim
+
+
 
 parport_unregister_device - finish using a port
--------------------------
+-----------------------------------------------
 
 SYNPOPSIS
 
-#include <linux/parport.h>
+::
+
+	#include <linux/parport.h>
 
-void parport_unregister_device (struct pardevice *dev);
+	void parport_unregister_device (struct pardevice *dev);
 
 DESCRIPTION
+^^^^^^^^^^^
 
 This function is the opposite of parport_register_device.  After using
-parport_unregister_device, 'dev' is no longer a valid device handle.
+parport_unregister_device, ``dev`` is no longer a valid device handle.
 
 You should not unregister a device that is currently claimed, although
 if you do it will be released automatically.
 
 EXAMPLE
+^^^^^^^
+
+::
 
 	...
 	kfree (dev->private); /* before we lose the pointer */
@@ -467,460 +528,602 @@ EXAMPLE
 	...
 
 SEE ALSO
+^^^^^^^^
+
 
 parport_unregister_driver
 
 parport_claim, parport_claim_or_block - claim the parallel port for a device
--------------------------------------
+----------------------------------------------------------------------------
 
 SYNOPSIS
+^^^^^^^^
+
+::
 
-#include <linux/parport.h>
+	#include <linux/parport.h>
 
-int parport_claim (struct pardevice *dev);
-int parport_claim_or_block (struct pardevice *dev);
+	int parport_claim (struct pardevice *dev);
+	int parport_claim_or_block (struct pardevice *dev);
 
 DESCRIPTION
+^^^^^^^^^^^
 
 These functions attempt to gain control of the parallel port on which
-'dev' is registered.  'parport_claim' does not block, but
-'parport_claim_or_block' may do. (Put something here about blocking
+``dev`` is registered.  ``parport_claim`` does not block, but
+``parport_claim_or_block`` may do. (Put something here about blocking
 interruptibly or non-interruptibly.)
 
 You should not try to claim a port that you have already claimed.
 
 RETURN VALUE
+^^^^^^^^^^^^
 
 A return value of zero indicates that the port was successfully
 claimed, and the caller now has possession of the parallel port.
 
-If 'parport_claim_or_block' blocks before returning successfully, the
+If ``parport_claim_or_block`` blocks before returning successfully, the
 return value is positive.
 
 ERRORS
+^^^^^^
 
+========== ==========================================================
   -EAGAIN  The port is unavailable at the moment, but another attempt
            to claim it may succeed.
+========== ==========================================================
 
 SEE ALSO
+^^^^^^^^
+
 
 parport_release
 
 parport_release - release the parallel port
----------------
+-------------------------------------------
 
 SYNOPSIS
+^^^^^^^^
+
+::
 
-#include <linux/parport.h>
+	#include <linux/parport.h>
 
-void parport_release (struct pardevice *dev);
+	void parport_release (struct pardevice *dev);
 
 DESCRIPTION
+^^^^^^^^^^^
 
 Once a parallel port device has been claimed, it can be released using
-'parport_release'.  It cannot fail, but you should not release a
+``parport_release``.  It cannot fail, but you should not release a
 device that you do not have possession of.
 
 EXAMPLE
+^^^^^^^
 
-static size_t write (struct pardevice *dev, const void *buf,
-		     size_t len)
-{
-	...
-	written = dev->port->ops->write_ecp_data (dev->port, buf,
-						  len);
-	parport_release (dev);
-	...
-}
+::
+
+	static size_t write (struct pardevice *dev, const void *buf,
+			size_t len)
+	{
+		...
+		written = dev->port->ops->write_ecp_data (dev->port, buf,
+							len);
+		parport_release (dev);
+		...
+	}
 
 
 SEE ALSO
+^^^^^^^^
 
 change_mode, parport_claim, parport_claim_or_block, parport_yield
-
+
+
+
 parport_yield, parport_yield_blocking - temporarily release a parallel port
--------------------------------------
+---------------------------------------------------------------------------
 
 SYNOPSIS
+^^^^^^^^
+
+::
 
-#include <linux/parport.h>
+	#include <linux/parport.h>
 
-int parport_yield (struct pardevice *dev)
-int parport_yield_blocking (struct pardevice *dev);
+	int parport_yield (struct pardevice *dev)
+	int parport_yield_blocking (struct pardevice *dev);
 
 DESCRIPTION
+^^^^^^^^^^^
 
 When a driver has control of a parallel port, it may allow another
-driver to temporarily 'borrow' it.  'parport_yield' does not block;
-'parport_yield_blocking' may do.
+driver to temporarily ``borrow`` it.  ``parport_yield`` does not block;
+``parport_yield_blocking`` may do.
 
 RETURN VALUE
+^^^^^^^^^^^^
 
 A return value of zero indicates that the caller still owns the port
 and the call did not block.
 
-A positive return value from 'parport_yield_blocking' indicates that
+A positive return value from ``parport_yield_blocking`` indicates that
 the caller still owns the port and the call blocked.
 
 A return value of -EAGAIN indicates that the caller no longer owns the
 port, and it must be re-claimed before use.
 
 ERRORS
+^^^^^^
 
+========= ==========================================================
   -EAGAIN  Ownership of the parallel port was given away.
+========= ==========================================================
 
 SEE ALSO
+^^^^^^^^
 
 parport_release
+
+
 
 parport_wait_peripheral - wait for status lines, up to 35ms
------------------------
+-----------------------------------------------------------
 
 SYNOPSIS
+^^^^^^^^
+
+::
 
-#include <linux/parport.h>
+	#include <linux/parport.h>
 
-int parport_wait_peripheral (struct parport *port,
-			     unsigned char mask,
-			     unsigned char val);
+	int parport_wait_peripheral (struct parport *port,
+				     unsigned char mask,
+				     unsigned char val);
 
 DESCRIPTION
+^^^^^^^^^^^
 
 Wait for the status lines in mask to match the values in val.
 
 RETURN VALUE
+^^^^^^^^^^^^
 
+======== ==========================================================
  -EINTR  a signal is pending
       0  the status lines in mask have values in val
       1  timed out while waiting (35ms elapsed)
+======== ==========================================================
 
 SEE ALSO
+^^^^^^^^
 
 parport_poll_peripheral
+
+
 
 parport_poll_peripheral - wait for status lines, in usec
------------------------
+--------------------------------------------------------
 
 SYNOPSIS
+^^^^^^^^
+
+::
 
-#include <linux/parport.h>
+	#include <linux/parport.h>
 
-int parport_poll_peripheral (struct parport *port,
-			     unsigned char mask,
-			     unsigned char val,
-			     int usec);
+	int parport_poll_peripheral (struct parport *port,
+				     unsigned char mask,
+				     unsigned char val,
+				     int usec);
 
 DESCRIPTION
+^^^^^^^^^^^
 
 Wait for the status lines in mask to match the values in val.
 
 RETURN VALUE
+^^^^^^^^^^^^
 
+======== ==========================================================
  -EINTR  a signal is pending
       0  the status lines in mask have values in val
       1  timed out while waiting (usec microseconds have elapsed)
+======== ==========================================================
 
 SEE ALSO
+^^^^^^^^
 
 parport_wait_peripheral
-
+
+
+
 parport_wait_event - wait for an event on a port
-------------------
+------------------------------------------------
 
 SYNOPSIS
+^^^^^^^^
 
-#include <linux/parport.h>
+::
 
-int parport_wait_event (struct parport *port, signed long timeout)
+	#include <linux/parport.h>
+
+	int parport_wait_event (struct parport *port, signed long timeout)
 
 DESCRIPTION
+^^^^^^^^^^^
 
 Wait for an event (e.g. interrupt) on a port.  The timeout is in
 jiffies.
 
 RETURN VALUE
+^^^^^^^^^^^^
 
+======= ==========================================================
       0  success
      <0  error (exit as soon as possible)
      >0  timed out
-
+======= ==========================================================
+
 parport_negotiate - perform IEEE 1284 negotiation
------------------
+-------------------------------------------------
 
 SYNOPSIS
+^^^^^^^^
+
+::
 
-#include <linux/parport.h>
+	#include <linux/parport.h>
 
-int parport_negotiate (struct parport *, int mode);
+	int parport_negotiate (struct parport *, int mode);
 
 DESCRIPTION
+^^^^^^^^^^^
 
 Perform IEEE 1284 negotiation.
 
 RETURN VALUE
+^^^^^^^^^^^^
 
+======= ==========================================================
      0  handshake OK; IEEE 1284 peripheral and mode available
     -1  handshake failed; peripheral not compliant (or none present)
      1  handshake OK; IEEE 1284 peripheral present but mode not
         available
+======= ==========================================================
 
 SEE ALSO
+^^^^^^^^
 
 parport_read, parport_write
-
+
+
+
 parport_read - read data from device
-------------
+------------------------------------
 
 SYNOPSIS
+^^^^^^^^
+
+::
 
-#include <linux/parport.h>
+	#include <linux/parport.h>
 
-ssize_t parport_read (struct parport *, void *buf, size_t len);
+	ssize_t parport_read (struct parport *, void *buf, size_t len);
 
 DESCRIPTION
+^^^^^^^^^^^
 
 Read data from device in current IEEE 1284 transfer mode.  This only
 works for modes that support reverse data transfer.
 
 RETURN VALUE
+^^^^^^^^^^^^
 
 If negative, an error code; otherwise the number of bytes transferred.
 
 SEE ALSO
+^^^^^^^^
 
 parport_write, parport_negotiate
-
+
+
+
 parport_write - write data to device
--------------
+------------------------------------
 
 SYNOPSIS
+^^^^^^^^
+
+::
 
-#include <linux/parport.h>
+	#include <linux/parport.h>
 
-ssize_t parport_write (struct parport *, const void *buf, size_t len);
+	ssize_t parport_write (struct parport *, const void *buf, size_t len);
 
 DESCRIPTION
+^^^^^^^^^^^
 
 Write data to device in current IEEE 1284 transfer mode.  This only
 works for modes that support forward data transfer.
 
 RETURN VALUE
+^^^^^^^^^^^^
 
 If negative, an error code; otherwise the number of bytes transferred.
 
 SEE ALSO
+^^^^^^^^
 
 parport_read, parport_negotiate
+
+
 
 parport_open - register device for particular device number
-------------
+-----------------------------------------------------------
 
 SYNOPSIS
+^^^^^^^^
 
-#include <linux/parport.h>
+::
 
-struct pardevice *parport_open (int devnum, const char *name,
-			        int (*pf) (void *),
-				void (*kf) (void *),
-				void (*irqf) (int, void *,
-					      struct pt_regs *),
-				int flags, void *handle);
+	#include <linux/parport.h>
+
+	struct pardevice *parport_open (int devnum, const char *name,
+				        int (*pf) (void *),
+					void (*kf) (void *),
+					void (*irqf) (int, void *,
+						      struct pt_regs *),
+					int flags, void *handle);
 
 DESCRIPTION
+^^^^^^^^^^^
 
 This is like parport_register_device but takes a device number instead
 of a pointer to a struct parport.
 
 RETURN VALUE
+^^^^^^^^^^^^
 
 See parport_register_device.  If no device is associated with devnum,
 NULL is returned.
 
 SEE ALSO
+^^^^^^^^
 
 parport_register_device
-
+
+
+
 parport_close - unregister device for particular device number
--------------
+--------------------------------------------------------------
 
 SYNOPSIS
+^^^^^^^^
+
+::
 
-#include <linux/parport.h>
+	#include <linux/parport.h>
 
-void parport_close (struct pardevice *dev);
+	void parport_close (struct pardevice *dev);
 
 DESCRIPTION
+^^^^^^^^^^^
 
 This is the equivalent of parport_unregister_device for parport_open.
 
 SEE ALSO
+^^^^^^^^
 
 parport_unregister_device, parport_open
-
+
+
+
 parport_device_id - obtain IEEE 1284 Device ID
------------------
+----------------------------------------------
 
 SYNOPSIS
+^^^^^^^^
+
+::
 
-#include <linux/parport.h>
+	#include <linux/parport.h>
 
-ssize_t parport_device_id (int devnum, char *buffer, size_t len);
+	ssize_t parport_device_id (int devnum, char *buffer, size_t len);
 
 DESCRIPTION
+^^^^^^^^^^^
 
 Obtains the IEEE 1284 Device ID associated with a given device.
 
 RETURN VALUE
+^^^^^^^^^^^^
 
 If negative, an error code; otherwise, the number of bytes of buffer
 that contain the device ID.  The format of the device ID is as
-follows:
+follows::
 
-[length][ID]
+	[length][ID]
 
 The first two bytes indicate the inclusive length of the entire Device
 ID, and are in big-endian order.  The ID is a sequence of pairs of the
-form:
+form::
 
-key:value;
+	key:value;
 
 NOTES
+^^^^^
 
 Many devices have ill-formed IEEE 1284 Device IDs.
 
 SEE ALSO
+^^^^^^^^
 
 parport_find_class, parport_find_device
-
+
+
+
 parport_device_coords - convert device number to device coordinates
-------------------
+-------------------------------------------------------------------
 
 SYNOPSIS
+^^^^^^^^
+
+::
 
-#include <linux/parport.h>
+	#include <linux/parport.h>
 
-int parport_device_coords (int devnum, int *parport, int *mux,
-			   int *daisy);
+	int parport_device_coords (int devnum, int *parport, int *mux,
+				   int *daisy);
 
 DESCRIPTION
+^^^^^^^^^^^
 
 Convert between device number (zero-based) and device coordinates
 (port, multiplexor, daisy chain address).
 
 RETURN VALUE
+^^^^^^^^^^^^
 
-Zero on success, in which case the coordinates are (*parport, *mux,
-*daisy).
+Zero on success, in which case the coordinates are (``*parport``, ``*mux``,
+``*daisy``).
 
 SEE ALSO
+^^^^^^^^
 
 parport_open, parport_device_id
-
+
+
+
 parport_find_class - find a device by its class
-------------------
+-----------------------------------------------
 
 SYNOPSIS
-
-#include <linux/parport.h>
-
-typedef enum {
-	PARPORT_CLASS_LEGACY = 0,       /* Non-IEEE1284 device */
-	PARPORT_CLASS_PRINTER,
-	PARPORT_CLASS_MODEM,
-	PARPORT_CLASS_NET,
-	PARPORT_CLASS_HDC,              /* Hard disk controller */
-	PARPORT_CLASS_PCMCIA,
-	PARPORT_CLASS_MEDIA,            /* Multimedia device */
-	PARPORT_CLASS_FDC,              /* Floppy disk controller */
-	PARPORT_CLASS_PORTS,
-	PARPORT_CLASS_SCANNER,
-	PARPORT_CLASS_DIGCAM,
-	PARPORT_CLASS_OTHER,            /* Anything else */
-	PARPORT_CLASS_UNSPEC,           /* No CLS field in ID */
-	PARPORT_CLASS_SCSIADAPTER
-} parport_device_class;
-
-int parport_find_class (parport_device_class cls, int from);
+^^^^^^^^
+
+::
+
+	#include <linux/parport.h>
+
+	typedef enum {
+		PARPORT_CLASS_LEGACY = 0,       /* Non-IEEE1284 device */
+		PARPORT_CLASS_PRINTER,
+		PARPORT_CLASS_MODEM,
+		PARPORT_CLASS_NET,
+		PARPORT_CLASS_HDC,              /* Hard disk controller */
+		PARPORT_CLASS_PCMCIA,
+		PARPORT_CLASS_MEDIA,            /* Multimedia device */
+		PARPORT_CLASS_FDC,              /* Floppy disk controller */
+		PARPORT_CLASS_PORTS,
+		PARPORT_CLASS_SCANNER,
+		PARPORT_CLASS_DIGCAM,
+		PARPORT_CLASS_OTHER,            /* Anything else */
+		PARPORT_CLASS_UNSPEC,           /* No CLS field in ID */
+		PARPORT_CLASS_SCSIADAPTER
+	} parport_device_class;
+
+	int parport_find_class (parport_device_class cls, int from);
 
 DESCRIPTION
+^^^^^^^^^^^
 
 Find a device by class.  The search starts from device number from+1.
 
 RETURN VALUE
+^^^^^^^^^^^^
 
 The device number of the next device in that class, or -1 if no such
 device exists.
 
 NOTES
+^^^^^
 
-Example usage:
+Example usage::
 
-int devnum = -1;
-while ((devnum = parport_find_class (PARPORT_CLASS_DIGCAM, devnum)) != -1) {
-    struct pardevice *dev = parport_open (devnum, ...);
-    ...
-}
+	int devnum = -1;
+	while ((devnum = parport_find_class (PARPORT_CLASS_DIGCAM, devnum)) != -1) {
+		struct pardevice *dev = parport_open (devnum, ...);
+		...
+	}
 
 SEE ALSO
+^^^^^^^^
 
 parport_find_device, parport_open, parport_device_id
-
+
+
+
 parport_find_device - find a device by its class
-------------------
+------------------------------------------------
 
 SYNOPSIS
+^^^^^^^^
 
-#include <linux/parport.h>
+::
 
-int parport_find_device (const char *mfg, const char *mdl, int from);
+	#include <linux/parport.h>
+
+	int parport_find_device (const char *mfg, const char *mdl, int from);
 
 DESCRIPTION
+^^^^^^^^^^^
 
 Find a device by vendor and model.  The search starts from device
 number from+1.
 
 RETURN VALUE
+^^^^^^^^^^^^
 
 The device number of the next device matching the specifications, or
 -1 if no such device exists.
 
 NOTES
+^^^^^
 
-Example usage:
+Example usage::
 
-int devnum = -1;
-while ((devnum = parport_find_device ("IOMEGA", "ZIP+", devnum)) != -1) {
-    struct pardevice *dev = parport_open (devnum, ...);
-    ...
-}
+	int devnum = -1;
+	while ((devnum = parport_find_device ("IOMEGA", "ZIP+", devnum)) != -1) {
+		struct pardevice *dev = parport_open (devnum, ...);
+		...
+	}
 
 SEE ALSO
+^^^^^^^^
 
 parport_find_class, parport_open, parport_device_id
+
+
 
 parport_set_timeout - set the inactivity timeout
--------------------
+------------------------------------------------
 
 SYNOPSIS
+^^^^^^^^
+
+::
 
-#include <linux/parport.h>
+	#include <linux/parport.h>
 
-long parport_set_timeout (struct pardevice *dev, long inactivity);
+	long parport_set_timeout (struct pardevice *dev, long inactivity);
 
 DESCRIPTION
+^^^^^^^^^^^
 
 Set the inactivity timeout, in jiffies, for a registered device.  The
 previous timeout is returned.
 
 RETURN VALUE
+^^^^^^^^^^^^
 
 The previous timeout, in jiffies.
 
 NOTES
+^^^^^
 
 Some of the port->ops functions for a parport may take time, owing to
 delays at the peripheral.  After the peripheral has not responded for
-'inactivity' jiffies, a timeout will occur and the blocking function
+``inactivity`` jiffies, a timeout will occur and the blocking function
 will return.
 
 A timeout of 0 jiffies is a special case: the function must do as much
@@ -932,29 +1135,37 @@ Once set for a registered device, the timeout will remain at the set
 value until set again.
 
 SEE ALSO
+^^^^^^^^
 
 port->ops->xxx_read/write_yyy
-
+
+
+
+
 PORT FUNCTIONS
---------------
+==============
 
 The functions in the port->ops structure (struct parport_operations)
 are provided by the low-level driver responsible for that port.
 
 port->ops->read_data - read the data register
---------------------
+---------------------------------------------
 
 SYNOPSIS
+^^^^^^^^
 
-#include <linux/parport.h>
+::
 
-struct parport_operations {
-	...
-	unsigned char (*read_data) (struct parport *port);
-	...
-};
+	#include <linux/parport.h>
+
+	struct parport_operations {
+		...
+		unsigned char (*read_data) (struct parport *port);
+		...
+	};
 
 DESCRIPTION
+^^^^^^^^^^^
 
 If port->modes contains the PARPORT_MODE_TRISTATE flag and the
 PARPORT_CONTROL_DIRECTION bit in the control register is set, this
@@ -964,45 +1175,59 @@ not set, the return value _may_ be the last value written to the data
 register.  Otherwise the return value is undefined.
 
 SEE ALSO
+^^^^^^^^
 
 write_data, read_status, write_control
+
+
 
 port->ops->write_data - write the data register
----------------------
+-----------------------------------------------
 
 SYNOPSIS
+^^^^^^^^
 
-#include <linux/parport.h>
+::
 
-struct parport_operations {
-	...
-	void (*write_data) (struct parport *port, unsigned char d);
-	...
-};
+	#include <linux/parport.h>
+
+	struct parport_operations {
+		...
+		void (*write_data) (struct parport *port, unsigned char d);
+		...
+	};
 
 DESCRIPTION
+^^^^^^^^^^^
 
 Writes to the data register.  May have side-effects (a STROBE pulse,
 for instance).
 
 SEE ALSO
+^^^^^^^^
 
 read_data, read_status, write_control
+
+
 
 port->ops->read_status - read the status register
-----------------------
+-------------------------------------------------
 
 SYNOPSIS
+^^^^^^^^
 
-#include <linux/parport.h>
+::
 
-struct parport_operations {
-	...
-	unsigned char (*read_status) (struct parport *port);
-	...
-};
+	#include <linux/parport.h>
+
+	struct parport_operations {
+		...
+		unsigned char (*read_status) (struct parport *port);
+		...
+	};
 
 DESCRIPTION
+^^^^^^^^^^^
 
 Reads from the status register.  This is a bitmask:
 
@@ -1015,76 +1240,98 @@ Reads from the status register.  This is a bitmask:
 There may be other bits set.
 
 SEE ALSO
+^^^^^^^^
 
 read_data, write_data, write_control
+
+
 
 port->ops->read_control - read the control register
------------------------
+---------------------------------------------------
 
 SYNOPSIS
+^^^^^^^^
 
-#include <linux/parport.h>
+::
 
-struct parport_operations {
-	...
-	unsigned char (*read_control) (struct parport *port);
-	...
-};
+	#include <linux/parport.h>
+
+	struct parport_operations {
+		...
+		unsigned char (*read_control) (struct parport *port);
+		...
+	};
 
 DESCRIPTION
+^^^^^^^^^^^
 
 Returns the last value written to the control register (either from
 write_control or frob_control).  No port access is performed.
 
 SEE ALSO
+^^^^^^^^
 
 read_data, write_data, read_status, write_control
+
+
 
 port->ops->write_control - write the control register
-------------------------
+-----------------------------------------------------
 
 SYNOPSIS
+^^^^^^^^
 
-#include <linux/parport.h>
+::
 
-struct parport_operations {
-	...
-	void (*write_control) (struct parport *port, unsigned char s);
-	...
-};
+	#include <linux/parport.h>
+
+	struct parport_operations {
+		...
+		void (*write_control) (struct parport *port, unsigned char s);
+		...
+	};
 
 DESCRIPTION
+^^^^^^^^^^^
 
-Writes to the control register. This is a bitmask:
-                          _______
-- PARPORT_CONTROL_STROBE (nStrobe)
-                          _______
-- PARPORT_CONTROL_AUTOFD (nAutoFd)
-                        _____
-- PARPORT_CONTROL_INIT (nInit)
-                          _________
-- PARPORT_CONTROL_SELECT (nSelectIn)
+Writes to the control register. This is a bitmask::
+
+				  _______
+	- PARPORT_CONTROL_STROBE (nStrobe)
+				  _______
+	- PARPORT_CONTROL_AUTOFD (nAutoFd)
+				_____
+	- PARPORT_CONTROL_INIT (nInit)
+				  _________
+	- PARPORT_CONTROL_SELECT (nSelectIn)
 
 SEE ALSO
+^^^^^^^^
 
 read_data, write_data, read_status, frob_control
+
+
 
 port->ops->frob_control - write control register bits
------------------------
+-----------------------------------------------------
 
 SYNOPSIS
+^^^^^^^^
 
-#include <linux/parport.h>
+::
 
-struct parport_operations {
-	...
-	unsigned char (*frob_control) (struct parport *port,
-				       unsigned char mask,
-				       unsigned char val);
-	...
-};
+	#include <linux/parport.h>
+
+	struct parport_operations {
+		...
+		unsigned char (*frob_control) (struct parport *port,
+					unsigned char mask,
+					unsigned char val);
+		...
+	};
 
 DESCRIPTION
+^^^^^^^^^^^
 
 This is equivalent to reading from the control register, masking out
 the bits in mask, exclusive-or'ing with the bits in val, and writing
@@ -1095,23 +1342,30 @@ of its contents is maintained, so frob_control is in fact only one
 port access.
 
 SEE ALSO
+^^^^^^^^
 
 read_data, write_data, read_status, write_control
+
+
 
 port->ops->enable_irq - enable interrupt generation
----------------------
+---------------------------------------------------
 
 SYNOPSIS
+^^^^^^^^
 
-#include <linux/parport.h>
+::
 
-struct parport_operations {
-	...
-	void (*enable_irq) (struct parport *port);
-	...
-};
+	#include <linux/parport.h>
+
+	struct parport_operations {
+		...
+		void (*enable_irq) (struct parport *port);
+		...
+	};
 
 DESCRIPTION
+^^^^^^^^^^^
 
 The parallel port hardware is instructed to generate interrupts at
 appropriate moments, although those moments are
@@ -1119,353 +1373,460 @@ architecture-specific.  For the PC architecture, interrupts are
 commonly generated on the rising edge of nAck.
 
 SEE ALSO
+^^^^^^^^
 
 disable_irq
+
+
 
 port->ops->disable_irq - disable interrupt generation
-----------------------
+-----------------------------------------------------
 
 SYNOPSIS
+^^^^^^^^
 
-#include <linux/parport.h>
+::
 
-struct parport_operations {
-	...
-	void (*disable_irq) (struct parport *port);
-	...
-};
+	#include <linux/parport.h>
+
+	struct parport_operations {
+		...
+		void (*disable_irq) (struct parport *port);
+		...
+	};
 
 DESCRIPTION
+^^^^^^^^^^^
 
 The parallel port hardware is instructed not to generate interrupts.
 The interrupt itself is not masked.
 
 SEE ALSO
+^^^^^^^^
 
 enable_irq
 
+
+
 port->ops->data_forward - enable data drivers
------------------------
+---------------------------------------------
 
 SYNOPSIS
+^^^^^^^^
 
-#include <linux/parport.h>
+::
 
-struct parport_operations {
-	...
-	void (*data_forward) (struct parport *port);
-	...
-};
+	#include <linux/parport.h>
+
+	struct parport_operations {
+		...
+		void (*data_forward) (struct parport *port);
+		...
+	};
 
 DESCRIPTION
+^^^^^^^^^^^
 
 Enables the data line drivers, for 8-bit host-to-peripheral
 communications.
 
 SEE ALSO
+^^^^^^^^
 
 data_reverse
+
+
 
 port->ops->data_reverse - tristate the buffer
------------------------
+---------------------------------------------
 
 SYNOPSIS
+^^^^^^^^
 
-#include <linux/parport.h>
+::
 
-struct parport_operations {
-	...
-	void (*data_reverse) (struct parport *port);
-	...
-};
+	#include <linux/parport.h>
+
+	struct parport_operations {
+		...
+		void (*data_reverse) (struct parport *port);
+		...
+	};
 
 DESCRIPTION
+^^^^^^^^^^^
 
 Places the data bus in a high impedance state, if port->modes has the
 PARPORT_MODE_TRISTATE bit set.
 
 SEE ALSO
+^^^^^^^^
 
 data_forward
-
+
+
+
 port->ops->epp_write_data - write EPP data
--------------------------
+------------------------------------------
 
 SYNOPSIS
+^^^^^^^^
 
-#include <linux/parport.h>
+::
 
-struct parport_operations {
-	...
-	size_t (*epp_write_data) (struct parport *port, const void *buf,
-				  size_t len, int flags);
-	...
-};
+	#include <linux/parport.h>
+
+	struct parport_operations {
+		...
+		size_t (*epp_write_data) (struct parport *port, const void *buf,
+					size_t len, int flags);
+		...
+	};
 
 DESCRIPTION
+^^^^^^^^^^^
 
 Writes data in EPP mode, and returns the number of bytes written.
 
-The 'flags' parameter may be one or more of the following,
+The ``flags`` parameter may be one or more of the following,
 bitwise-or'ed together:
 
+======================= =================================================
 PARPORT_EPP_FAST	Use fast transfers. Some chips provide 16-bit and
 			32-bit registers.  However, if a transfer
 			times out, the return value may be unreliable.
+======================= =================================================
 
 SEE ALSO
+^^^^^^^^
 
 epp_read_data, epp_write_addr, epp_read_addr
+
+
 
 port->ops->epp_read_data - read EPP data
-------------------------
+----------------------------------------
 
 SYNOPSIS
+^^^^^^^^
 
-#include <linux/parport.h>
+::
 
-struct parport_operations {
-	...
-	size_t (*epp_read_data) (struct parport *port, void *buf,
-				 size_t len, int flags);
-	...
-};
+	#include <linux/parport.h>
+
+	struct parport_operations {
+		...
+		size_t (*epp_read_data) (struct parport *port, void *buf,
+					size_t len, int flags);
+		...
+	};
 
 DESCRIPTION
+^^^^^^^^^^^
 
 Reads data in EPP mode, and returns the number of bytes read.
 
-The 'flags' parameter may be one or more of the following,
+The ``flags`` parameter may be one or more of the following,
 bitwise-or'ed together:
 
+======================= =================================================
 PARPORT_EPP_FAST	Use fast transfers. Some chips provide 16-bit and
 			32-bit registers.  However, if a transfer
 			times out, the return value may be unreliable.
+======================= =================================================
 
 SEE ALSO
+^^^^^^^^
 
 epp_write_data, epp_write_addr, epp_read_addr
-
+
+
+
 port->ops->epp_write_addr - write EPP address
--------------------------
+---------------------------------------------
 
 SYNOPSIS
+^^^^^^^^
 
-#include <linux/parport.h>
+::
 
-struct parport_operations {
-	...
-	size_t (*epp_write_addr) (struct parport *port,
-				  const void *buf, size_t len, int flags);
-	...
-};
+	#include <linux/parport.h>
+
+	struct parport_operations {
+		...
+		size_t (*epp_write_addr) (struct parport *port,
+					const void *buf, size_t len, int flags);
+		...
+	};
 
 DESCRIPTION
+^^^^^^^^^^^
 
 Writes EPP addresses (8 bits each), and returns the number written.
 
-The 'flags' parameter may be one or more of the following,
+The ``flags`` parameter may be one or more of the following,
 bitwise-or'ed together:
 
+======================= =================================================
 PARPORT_EPP_FAST	Use fast transfers. Some chips provide 16-bit and
 			32-bit registers.  However, if a transfer
 			times out, the return value may be unreliable.
+======================= =================================================
 
 (Does PARPORT_EPP_FAST make sense for this function?)
 
 SEE ALSO
+^^^^^^^^
 
 epp_write_data, epp_read_data, epp_read_addr
+
+
 
 port->ops->epp_read_addr - read EPP address
-------------------------
+-------------------------------------------
 
 SYNOPSIS
+^^^^^^^^
 
-#include <linux/parport.h>
+::
 
-struct parport_operations {
-	...
-	size_t (*epp_read_addr) (struct parport *port, void *buf,
-				 size_t len, int flags);
-	...
-};
+	#include <linux/parport.h>
+
+	struct parport_operations {
+		...
+		size_t (*epp_read_addr) (struct parport *port, void *buf,
+					size_t len, int flags);
+		...
+	};
 
 DESCRIPTION
+^^^^^^^^^^^
 
 Reads EPP addresses (8 bits each), and returns the number read.
 
-The 'flags' parameter may be one or more of the following,
+The ``flags`` parameter may be one or more of the following,
 bitwise-or'ed together:
 
+======================= =================================================
 PARPORT_EPP_FAST	Use fast transfers. Some chips provide 16-bit and
 			32-bit registers.  However, if a transfer
 			times out, the return value may be unreliable.
+======================= =================================================
 
 (Does PARPORT_EPP_FAST make sense for this function?)
 
 SEE ALSO
+^^^^^^^^
 
 epp_write_data, epp_read_data, epp_write_addr
+
+
 
 port->ops->ecp_write_data - write a block of ECP data
--------------------------
+-----------------------------------------------------
 
 SYNOPSIS
+^^^^^^^^
 
-#include <linux/parport.h>
+::
 
-struct parport_operations {
-	...
-	size_t (*ecp_write_data) (struct parport *port,
-				  const void *buf, size_t len, int flags);
-	...
-};
+	#include <linux/parport.h>
+
+	struct parport_operations {
+		...
+		size_t (*ecp_write_data) (struct parport *port,
+					const void *buf, size_t len, int flags);
+		...
+	};
 
 DESCRIPTION
+^^^^^^^^^^^
 
-Writes a block of ECP data.  The 'flags' parameter is ignored.
+Writes a block of ECP data.  The ``flags`` parameter is ignored.
 
 RETURN VALUE
+^^^^^^^^^^^^
 
 The number of bytes written.
 
 SEE ALSO
+^^^^^^^^
 
 ecp_read_data, ecp_write_addr
 
+
+
 port->ops->ecp_read_data - read a block of ECP data
-------------------------
+---------------------------------------------------
 
 SYNOPSIS
+^^^^^^^^
 
-#include <linux/parport.h>
+::
 
-struct parport_operations {
-	...
-	size_t (*ecp_read_data) (struct parport *port,
-				 void *buf, size_t len, int flags);
-	...
-};
+	#include <linux/parport.h>
+
+	struct parport_operations {
+		...
+		size_t (*ecp_read_data) (struct parport *port,
+					void *buf, size_t len, int flags);
+		...
+	};
 
 DESCRIPTION
+^^^^^^^^^^^
 
-Reads a block of ECP data.  The 'flags' parameter is ignored.
+Reads a block of ECP data.  The ``flags`` parameter is ignored.
 
 RETURN VALUE
+^^^^^^^^^^^^
 
 The number of bytes read.  NB. There may be more unread data in a
 FIFO.  Is there a way of stunning the FIFO to prevent this?
 
 SEE ALSO
+^^^^^^^^
 
 ecp_write_block, ecp_write_addr
-
+
+
+
 port->ops->ecp_write_addr - write a block of ECP addresses
--------------------------
+----------------------------------------------------------
 
 SYNOPSIS
+^^^^^^^^
 
-#include <linux/parport.h>
+::
 
-struct parport_operations {
-	...
-	size_t (*ecp_write_addr) (struct parport *port,
-				  const void *buf, size_t len, int flags);
-	...
-};
+	#include <linux/parport.h>
+
+	struct parport_operations {
+		...
+		size_t (*ecp_write_addr) (struct parport *port,
+					const void *buf, size_t len, int flags);
+		...
+	};
 
 DESCRIPTION
+^^^^^^^^^^^
 
-Writes a block of ECP addresses.  The 'flags' parameter is ignored.
+Writes a block of ECP addresses.  The ``flags`` parameter is ignored.
 
 RETURN VALUE
+^^^^^^^^^^^^
 
 The number of bytes written.
 
 NOTES
+^^^^^
 
 This may use a FIFO, and if so shall not return until the FIFO is empty.
 
 SEE ALSO
+^^^^^^^^
 
 ecp_read_data, ecp_write_data
-
+
+
+
 port->ops->nibble_read_data - read a block of data in nibble mode
----------------------------
+-----------------------------------------------------------------
 
 SYNOPSIS
+^^^^^^^^
 
-#include <linux/parport.h>
+::
 
-struct parport_operations {
-	...
-	size_t (*nibble_read_data) (struct parport *port,
-				    void *buf, size_t len, int flags);
-	...
-};
+	#include <linux/parport.h>
+
+	struct parport_operations {
+		...
+		size_t (*nibble_read_data) (struct parport *port,
+					void *buf, size_t len, int flags);
+		...
+	};
 
 DESCRIPTION
+^^^^^^^^^^^
 
-Reads a block of data in nibble mode.  The 'flags' parameter is ignored.
+Reads a block of data in nibble mode.  The ``flags`` parameter is ignored.
 
 RETURN VALUE
+^^^^^^^^^^^^
 
 The number of whole bytes read.
 
 SEE ALSO
+^^^^^^^^
 
 byte_read_data, compat_write_data
+
+
 
 port->ops->byte_read_data - read a block of data in byte mode
--------------------------
+-------------------------------------------------------------
 
 SYNOPSIS
+^^^^^^^^
 
-#include <linux/parport.h>
+::
 
-struct parport_operations {
-	...
-	size_t (*byte_read_data) (struct parport *port,
-				  void *buf, size_t len, int flags);
-	...
-};
+	#include <linux/parport.h>
+
+	struct parport_operations {
+		...
+		size_t (*byte_read_data) (struct parport *port,
+					void *buf, size_t len, int flags);
+		...
+	};
 
 DESCRIPTION
+^^^^^^^^^^^
 
-Reads a block of data in byte mode.  The 'flags' parameter is ignored.
+Reads a block of data in byte mode.  The ``flags`` parameter is ignored.
 
 RETURN VALUE
+^^^^^^^^^^^^
 
 The number of bytes read.
 
 SEE ALSO
+^^^^^^^^
 
 nibble_read_data, compat_write_data
+
+
 
 port->ops->compat_write_data - write a block of data in compatibility mode
-----------------------------
+--------------------------------------------------------------------------
 
 SYNOPSIS
+^^^^^^^^
 
-#include <linux/parport.h>
+::
 
-struct parport_operations {
-	...
-	size_t (*compat_write_data) (struct parport *port,
-				     const void *buf, size_t len, int flags);
-	...
-};
+	#include <linux/parport.h>
+
+	struct parport_operations {
+		...
+		size_t (*compat_write_data) (struct parport *port,
+					const void *buf, size_t len, int flags);
+		...
+	};
 
 DESCRIPTION
+^^^^^^^^^^^
 
-Writes a block of data in compatibility mode.  The 'flags' parameter
+Writes a block of data in compatibility mode.  The ``flags`` parameter
 is ignored.
 
 RETURN VALUE
+^^^^^^^^^^^^
 
 The number of bytes written.
 
 SEE ALSO
+^^^^^^^^
 
 nibble_read_data, byte_read_data
diff --git a/Documentation/percpu-rw-semaphore.txt b/Documentation/percpu-rw-semaphore.txt
index 7d3c82431909..247de6410855 100644
--- a/Documentation/percpu-rw-semaphore.txt
+++ b/Documentation/percpu-rw-semaphore.txt
@@ -1,5 +1,6 @@
+====================
 Percpu rw semaphores
---------------------
+====================
 
 Percpu rw semaphores is a new read-write semaphore design that is
 optimized for locking for reading.
diff --git a/Documentation/phy.txt b/Documentation/phy.txt
index 383cdd863f08..457c3e0f86d6 100644
--- a/Documentation/phy.txt
+++ b/Documentation/phy.txt
@@ -1,10 +1,14 @@
-			    PHY SUBSYSTEM
-		  Kishon Vijay Abraham I <kishon@ti.com>
+=============
+PHY subsystem
+=============
+
+:Author: Kishon Vijay Abraham I <kishon@ti.com>
 
 This document explains the Generic PHY Framework along with the APIs provided,
 and how-to-use.
 
-1. Introduction
+Introduction
+============
 
 *PHY* is the abbreviation for physical layer. It is used to connect a device
 to the physical medium e.g., the USB controller has a PHY to provide functions
@@ -21,7 +25,8 @@ better code maintainability.
 This framework will be of use only to devices that use external PHY (PHY
 functionality is not embedded within the controller).
 
-2. Registering/Unregistering the PHY provider
+Registering/Unregistering the PHY provider
+==========================================
 
 PHY provider refers to an entity that implements one or more PHY instances.
 For the simple case where the PHY provider implements only a single instance of
@@ -30,11 +35,14 @@ of_phy_simple_xlate. If the PHY provider implements multiple instances, it
 should provide its own implementation of of_xlate. of_xlate is used only for
 dt boot case.
 
-#define of_phy_provider_register(dev, xlate)    \
-        __of_phy_provider_register((dev), NULL, THIS_MODULE, (xlate))
+::
+
+	#define of_phy_provider_register(dev, xlate)    \
+		__of_phy_provider_register((dev), NULL, THIS_MODULE, (xlate))
 
-#define devm_of_phy_provider_register(dev, xlate)       \
-        __devm_of_phy_provider_register((dev), NULL, THIS_MODULE, (xlate))
+	#define devm_of_phy_provider_register(dev, xlate)       \
+		__devm_of_phy_provider_register((dev), NULL, THIS_MODULE,
+						(xlate))
 
 of_phy_provider_register and devm_of_phy_provider_register macros can be used to
 register the phy_provider and it takes device and of_xlate as
@@ -47,28 +55,35 @@ nodes within extra levels for context and extensibility, in which case the low
 level of_phy_provider_register_full() and devm_of_phy_provider_register_full()
 macros can be used to override the node containing the children.
 
-#define of_phy_provider_register_full(dev, children, xlate) \
-	__of_phy_provider_register(dev, children, THIS_MODULE, xlate)
+::
+
+	#define of_phy_provider_register_full(dev, children, xlate) \
+		__of_phy_provider_register(dev, children, THIS_MODULE, xlate)
 
-#define devm_of_phy_provider_register_full(dev, children, xlate) \
-	__devm_of_phy_provider_register_full(dev, children, THIS_MODULE, xlate)
+	#define devm_of_phy_provider_register_full(dev, children, xlate) \
+		__devm_of_phy_provider_register_full(dev, children,
+						     THIS_MODULE, xlate)
 
-void devm_of_phy_provider_unregister(struct device *dev,
-	struct phy_provider *phy_provider);
-void of_phy_provider_unregister(struct phy_provider *phy_provider);
+	void devm_of_phy_provider_unregister(struct device *dev,
+		struct phy_provider *phy_provider);
+	void of_phy_provider_unregister(struct phy_provider *phy_provider);
 
 devm_of_phy_provider_unregister and of_phy_provider_unregister can be used to
 unregister the PHY.
 
-3. Creating the PHY
+Creating the PHY
+================
 
 The PHY driver should create the PHY in order for other peripheral controllers
 to make use of it. The PHY framework provides 2 APIs to create the PHY.
 
-struct phy *phy_create(struct device *dev, struct device_node *node,
-		       const struct phy_ops *ops);
-struct phy *devm_phy_create(struct device *dev, struct device_node *node,
-			    const struct phy_ops *ops);
+::
+
+	struct phy *phy_create(struct device *dev, struct device_node *node,
+			       const struct phy_ops *ops);
+	struct phy *devm_phy_create(struct device *dev,
+				    struct device_node *node,
+				    const struct phy_ops *ops);
 
 The PHY drivers can use one of the above 2 APIs to create the PHY by passing
 the device pointer and phy ops.
@@ -84,12 +99,16 @@ phy_ops to get back the private data.
 Before the controller can make use of the PHY, it has to get a reference to
 it. This framework provides the following APIs to get a reference to the PHY.
 
-struct phy *phy_get(struct device *dev, const char *string);
-struct phy *phy_optional_get(struct device *dev, const char *string);
-struct phy *devm_phy_get(struct device *dev, const char *string);
-struct phy *devm_phy_optional_get(struct device *dev, const char *string);
-struct phy *devm_of_phy_get_by_index(struct device *dev, struct device_node *np,
-				     int index);
+::
+
+	struct phy *phy_get(struct device *dev, const char *string);
+	struct phy *phy_optional_get(struct device *dev, const char *string);
+	struct phy *devm_phy_get(struct device *dev, const char *string);
+	struct phy *devm_phy_optional_get(struct device *dev,
+					  const char *string);
+	struct phy *devm_of_phy_get_by_index(struct device *dev,
+					     struct device_node *np,
+					     int index);
 
 phy_get, phy_optional_get, devm_phy_get and devm_phy_optional_get can
 be used to get the PHY. In the case of dt boot, the string arguments
@@ -111,30 +130,35 @@ the phy_init() and phy_exit() calls, and phy_power_on() and
 phy_power_off() calls are all NOP when applied to a NULL phy. The NULL
 phy is useful in devices for handling optional phy devices.
 
-5. Releasing a reference to the PHY
+Releasing a reference to the PHY
+================================
 
 When the controller no longer needs the PHY, it has to release the reference
 to the PHY it has obtained using the APIs mentioned in the above section. The
 PHY framework provides 2 APIs to release a reference to the PHY.
 
-void phy_put(struct phy *phy);
-void devm_phy_put(struct device *dev, struct phy *phy);
+::
+
+	void phy_put(struct phy *phy);
+	void devm_phy_put(struct device *dev, struct phy *phy);
 
 Both these APIs are used to release a reference to the PHY and devm_phy_put
 destroys the devres associated with this PHY.
 
-6. Destroying the PHY
+Destroying the PHY
+==================
 
 When the driver that created the PHY is unloaded, it should destroy the PHY it
-created using one of the following 2 APIs.
+created using one of the following 2 APIs::
 
-void phy_destroy(struct phy *phy);
-void devm_phy_destroy(struct device *dev, struct phy *phy);
+	void phy_destroy(struct phy *phy);
+	void devm_phy_destroy(struct device *dev, struct phy *phy);
 
 Both these APIs destroy the PHY and devm_phy_destroy destroys the devres
 associated with this PHY.
 
-7. PM Runtime
+PM Runtime
+==========
 
 This subsystem is pm runtime enabled. So while creating the PHY,
 pm_runtime_enable of the phy device created by this subsystem is called and
@@ -150,7 +174,8 @@ There are exported APIs like phy_pm_runtime_get, phy_pm_runtime_get_sync,
 phy_pm_runtime_put, phy_pm_runtime_put_sync, phy_pm_runtime_allow and
 phy_pm_runtime_forbid for performing PM operations.
 
-8. PHY Mappings
+PHY Mappings
+============
 
 In order to get reference to a PHY without help from DeviceTree, the framework
 offers lookups which can be compared to clkdev that allow clk structures to be
@@ -158,12 +183,15 @@ bound to devices. A lookup can be made be made during runtime when a handle to
 the struct phy already exists.
 
 The framework offers the following API for registering and unregistering the
-lookups.
+lookups::
 
-int phy_create_lookup(struct phy *phy, const char *con_id, const char *dev_id);
-void phy_remove_lookup(struct phy *phy, const char *con_id, const char *dev_id);
+	int phy_create_lookup(struct phy *phy, const char *con_id,
+			      const char *dev_id);
+	void phy_remove_lookup(struct phy *phy, const char *con_id,
+			       const char *dev_id);
 
-9. DeviceTree Binding
+DeviceTree Binding
+==================
 
 The documentation for PHY dt binding can be found @
 Documentation/devicetree/bindings/phy/phy-bindings.txt
diff --git a/Documentation/pi-futex.txt b/Documentation/pi-futex.txt
index 9a5bc8651c29..aafddbee7377 100644
--- a/Documentation/pi-futex.txt
+++ b/Documentation/pi-futex.txt
@@ -1,5 +1,6 @@
+======================
 Lightweight PI-futexes
-----------------------
+======================
 
 We are calling them lightweight for 3 reasons:
 
@@ -25,8 +26,8 @@ determinism and well-bound latencies. Even in the worst-case, PI will
 improve the statistical distribution of locking related application
 delays.
 
-The longer reply:
------------------
+The longer reply
+----------------
 
 Firstly, sharing locks between multiple tasks is a common programming
 technique that often cannot be replaced with lockless algorithms. As we
@@ -71,8 +72,8 @@ deterministic execution of the high-prio task: any medium-priority task
 could preempt the low-prio task while it holds the shared lock and
 executes the critical section, and could delay it indefinitely.
 
-Implementation:
----------------
+Implementation
+--------------
 
 As mentioned before, the userspace fastpath of PI-enabled pthread
 mutexes involves no kernel work at all - they behave quite similarly to
@@ -83,8 +84,8 @@ entering the kernel.
 
 To handle the slowpath, we have added two new futex ops:
 
-  FUTEX_LOCK_PI
-  FUTEX_UNLOCK_PI
+  - FUTEX_LOCK_PI
+  - FUTEX_UNLOCK_PI
 
 If the lock-acquire fastpath fails, [i.e. an atomic transition from 0 to
 TID fails], then FUTEX_LOCK_PI is called. The kernel does all the
diff --git a/Documentation/pnp.txt b/Documentation/pnp.txt
index 763e4659bf18..bab2d10631f0 100644
--- a/Documentation/pnp.txt
+++ b/Documentation/pnp.txt
@@ -1,98 +1,118 @@
+=================================
 Linux Plug and Play Documentation
-by Adam Belay <ambx1@neo.rr.com>
-last updated: Oct. 16, 2002
----------------------------------------------------------------------------------------
+=================================
 
+:Author: Adam Belay <ambx1@neo.rr.com>
+:Last updated: Oct. 16, 2002
 
 
 Overview
 --------
-	Plug and Play provides a means of detecting and setting resources for legacy or
+
+Plug and Play provides a means of detecting and setting resources for legacy or
 otherwise unconfigurable devices.  The Linux Plug and Play Layer provides these 
 services to compatible drivers.
 
 
-
 The User Interface
 ------------------
-	The Linux Plug and Play user interface provides a means to activate PnP devices
+
+The Linux Plug and Play user interface provides a means to activate PnP devices
 for legacy and user level drivers that do not support Linux Plug and Play.  The 
 user interface is integrated into sysfs.
 
 In addition to the standard sysfs file the following are created in each
 device's directory:
-id - displays a list of support EISA IDs
-options - displays possible resource configurations
-resources - displays currently allocated resources and allows resource changes
+- id - displays a list of support EISA IDs
+- options - displays possible resource configurations
+- resources - displays currently allocated resources and allows resource changes
 
--activating a device
+activating a device
+^^^^^^^^^^^^^^^^^^^
 
-#echo "auto" > resources
+::
+
+	# echo "auto" > resources
 
 this will invoke the automatic resource config system to activate the device
 
--manually activating a device
+manually activating a device
+^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+
+::
+
+	# echo "manual <depnum> <mode>" > resources
 
-#echo "manual <depnum> <mode>" > resources
-<depnum> - the configuration number
-<mode> - static or dynamic
-		static = for next boot
-		dynamic = now
+	<depnum> - the configuration number
+	<mode> - static or dynamic
+		 static = for next boot
+		 dynamic = now
 
--disabling a device
+disabling a device
+^^^^^^^^^^^^^^^^^^
 
-#echo "disable" > resources
+::
+
+	# echo "disable" > resources
 
 
 EXAMPLE:
 
 Suppose you need to activate the floppy disk controller.
-1.) change to the proper directory, in my case it is 
-/driver/bus/pnp/devices/00:0f
-# cd /driver/bus/pnp/devices/00:0f
-# cat name
-PC standard floppy disk controller
-
-2.) check if the device is already active
-# cat resources
-DISABLED
-
-- Notice the string "DISABLED".  This means the device is not active.
-
-3.) check the device's possible configurations (optional)
-# cat options
-Dependent: 01 - Priority acceptable
-    port 0x3f0-0x3f0, align 0x7, size 0x6, 16-bit address decoding
-    port 0x3f7-0x3f7, align 0x0, size 0x1, 16-bit address decoding
-    irq 6
-    dma 2 8-bit compatible
-Dependent: 02 - Priority acceptable
-    port 0x370-0x370, align 0x7, size 0x6, 16-bit address decoding
-    port 0x377-0x377, align 0x0, size 0x1, 16-bit address decoding
-    irq 6
-    dma 2 8-bit compatible
-
-4.) now activate the device
-# echo "auto" > resources
-
-5.) finally check if the device is active
-# cat resources
-io 0x3f0-0x3f5
-io 0x3f7-0x3f7
-irq 6
-dma 2
-
-also there are a series of kernel parameters:
-pnp_reserve_irq=irq1[,irq2] ....
-pnp_reserve_dma=dma1[,dma2] ....
-pnp_reserve_io=io1,size1[,io2,size2] ....
-pnp_reserve_mem=mem1,size1[,mem2,size2] ....
+
+1. change to the proper directory, in my case it is
+   /driver/bus/pnp/devices/00:0f::
+
+	# cd /driver/bus/pnp/devices/00:0f
+	# cat name
+	PC standard floppy disk controller
+
+2. check if the device is already active::
+
+	# cat resources
+	DISABLED
+
+  - Notice the string "DISABLED".  This means the device is not active.
+
+3. check the device's possible configurations (optional)::
+
+	# cat options
+	Dependent: 01 - Priority acceptable
+	    port 0x3f0-0x3f0, align 0x7, size 0x6, 16-bit address decoding
+	    port 0x3f7-0x3f7, align 0x0, size 0x1, 16-bit address decoding
+	    irq 6
+	    dma 2 8-bit compatible
+	Dependent: 02 - Priority acceptable
+	    port 0x370-0x370, align 0x7, size 0x6, 16-bit address decoding
+	    port 0x377-0x377, align 0x0, size 0x1, 16-bit address decoding
+	    irq 6
+	    dma 2 8-bit compatible
+
+4. now activate the device::
+
+	# echo "auto" > resources
+
+5. finally check if the device is active::
+
+	# cat resources
+	io 0x3f0-0x3f5
+	io 0x3f7-0x3f7
+	irq 6
+	dma 2
+
+also there are a series of kernel parameters::
+
+	pnp_reserve_irq=irq1[,irq2] ....
+	pnp_reserve_dma=dma1[,dma2] ....
+	pnp_reserve_io=io1,size1[,io2,size2] ....
+	pnp_reserve_mem=mem1,size1[,mem2,size2] ....
 
 
 
 The Unified Plug and Play Layer
 -------------------------------
-	All Plug and Play drivers, protocols, and services meet at a central location 
+
+All Plug and Play drivers, protocols, and services meet at a central location
 called the Plug and Play Layer.  This layer is responsible for the exchange of 
 information between PnP drivers and PnP protocols.  Thus it automatically 
 forwards commands to the proper protocol.  This makes writing PnP drivers 
@@ -101,64 +121,73 @@ significantly easier.
 The following functions are available from the Plug and Play Layer:
 
 pnp_get_protocol
-- increments the number of uses by one
+  increments the number of uses by one
 
 pnp_put_protocol
-- deincrements the number of uses by one
+  deincrements the number of uses by one
 
 pnp_register_protocol
-- use this to register a new PnP protocol
+  use this to register a new PnP protocol
 
 pnp_unregister_protocol
-- use this function to remove a PnP protocol from the Plug and Play Layer
+  use this function to remove a PnP protocol from the Plug and Play Layer
 
 pnp_register_driver
-- adds a PnP driver to the Plug and Play Layer
-- this includes driver model integration
-- returns zero for success or a negative error number for failure; count
+  adds a PnP driver to the Plug and Play Layer
+
+  this includes driver model integration
+  returns zero for success or a negative error number for failure; count
   calls to the .add() method if you need to know how many devices bind to
   the driver
 
 pnp_unregister_driver
-- removes a PnP driver from the Plug and Play Layer
+  removes a PnP driver from the Plug and Play Layer
 
 
 
 Plug and Play Protocols
 -----------------------
-	This section contains information for PnP protocol developers.
+
+This section contains information for PnP protocol developers.
 
 The following Protocols are currently available in the computing world:
-- PNPBIOS: used for system devices such as serial and parallel ports.
-- ISAPNP: provides PnP support for the ISA bus
-- ACPI: among its many uses, ACPI provides information about system level 
-devices.
+
+- PNPBIOS:
+    used for system devices such as serial and parallel ports.
+- ISAPNP:
+    provides PnP support for the ISA bus
+- ACPI:
+    among its many uses, ACPI provides information about system level
+    devices.
+
 It is meant to replace the PNPBIOS.  It is not currently supported by Linux
 Plug and Play but it is planned to be in the near future.
 
 
 Requirements for a Linux PnP protocol:
-1.) the protocol must use EISA IDs
-2.) the protocol must inform the PnP Layer of a device's current configuration
+1. the protocol must use EISA IDs
+2. the protocol must inform the PnP Layer of a device's current configuration
+
 - the ability to set resources is optional but preferred.
 
 The following are PnP protocol related functions:
 
 pnp_add_device
-- use this function to add a PnP device to the PnP layer
-- only call this function when all wanted values are set in the pnp_dev 
-structure
+  use this function to add a PnP device to the PnP layer
+
+  only call this function when all wanted values are set in the pnp_dev
+  structure
 
 pnp_init_device
-- call this to initialize the PnP structure
+  call this to initialize the PnP structure
 
 pnp_remove_device
-- call this to remove a device from the Plug and Play Layer.
-- it will fail if the device is still in use.
-- automatically will free mem used by the device and related structures
+  call this to remove a device from the Plug and Play Layer.
+  it will fail if the device is still in use.
+  automatically will free mem used by the device and related structures
 
 pnp_add_id
-- adds an EISA ID to the list of supported IDs for the specified device
+  adds an EISA ID to the list of supported IDs for the specified device
 
 For more information consult the source of a protocol such as
 /drivers/pnp/pnpbios/core.c.
@@ -167,85 +196,97 @@ For more information consult the source of a protocol such as
 
 Linux Plug and Play Drivers
 ---------------------------
-	This section contains information for Linux PnP driver developers.
+
+This section contains information for Linux PnP driver developers.
 
 The New Way
-...........
-1.) first make a list of supported EISA IDS
-ex:
-static const struct pnp_id pnp_dev_table[] = {
-	/* Standard LPT Printer Port */
-	{.id = "PNP0400", .driver_data = 0},
-	/* ECP Printer Port */
-	{.id = "PNP0401", .driver_data = 0},
-	{.id = ""}
-};
-
-Please note that the character 'X' can be used as a wild card in the function
-portion (last four characters).
-ex:
+^^^^^^^^^^^
+
+1. first make a list of supported EISA IDS
+
+   ex::
+
+	static const struct pnp_id pnp_dev_table[] = {
+		/* Standard LPT Printer Port */
+		{.id = "PNP0400", .driver_data = 0},
+		/* ECP Printer Port */
+		{.id = "PNP0401", .driver_data = 0},
+		{.id = ""}
+	};
+
+   Please note that the character 'X' can be used as a wild card in the function
+   portion (last four characters).
+
+   ex::
+
 	/* Unknown PnP modems */
 	{	"PNPCXXX",		UNKNOWN_DEV	},
 
-Supported PnP card IDs can optionally be defined.
-ex:
-static const struct pnp_id pnp_card_table[] = {
-	{	"ANYDEVS",		0	},
-	{	"",			0	}
-};
-
-2.) Optionally define probe and remove functions.  It may make sense not to 
-define these functions if the driver already has a reliable method of detecting
-the resources, such as the parport_pc driver.
-ex:
-static int
-serial_pnp_probe(struct pnp_dev * dev, const struct pnp_id *card_id, const 
-                 struct pnp_id *dev_id)
-{
-. . .
-
-ex:
-static void serial_pnp_remove(struct pnp_dev * dev)
-{
-. . .
-
-consult /drivers/serial/8250_pnp.c for more information.
-
-3.) create a driver structure
-ex:
-
-static struct pnp_driver serial_pnp_driver = {
-	.name		= "serial",
-	.card_id_table	= pnp_card_table,
-	.id_table	= pnp_dev_table,
-	.probe		= serial_pnp_probe,
-	.remove		= serial_pnp_remove,
-};
-
-* name and id_table cannot be NULL.
-
-4.) register the driver
-ex:
-
-static int __init serial8250_pnp_init(void)
-{
-	return pnp_register_driver(&serial_pnp_driver);
-}
+   Supported PnP card IDs can optionally be defined.
+   ex::
+
+	static const struct pnp_id pnp_card_table[] = {
+		{	"ANYDEVS",		0	},
+		{	"",			0	}
+	};
+
+2. Optionally define probe and remove functions.  It may make sense not to
+   define these functions if the driver already has a reliable method of detecting
+   the resources, such as the parport_pc driver.
+
+   ex::
+
+	static int
+	serial_pnp_probe(struct pnp_dev * dev, const struct pnp_id *card_id, const
+			struct pnp_id *dev_id)
+	{
+	. . .
+
+   ex::
+
+	static void serial_pnp_remove(struct pnp_dev * dev)
+	{
+	. . .
+
+   consult /drivers/serial/8250_pnp.c for more information.
+
+3. create a driver structure
+
+   ex::
+
+	static struct pnp_driver serial_pnp_driver = {
+		.name		= "serial",
+		.card_id_table	= pnp_card_table,
+		.id_table	= pnp_dev_table,
+		.probe		= serial_pnp_probe,
+		.remove		= serial_pnp_remove,
+	};
+
+   * name and id_table cannot be NULL.
+
+4. register the driver
+
+   ex::
+
+	static int __init serial8250_pnp_init(void)
+	{
+		return pnp_register_driver(&serial_pnp_driver);
+	}
 
 The Old Way
-...........
+^^^^^^^^^^^
 
 A series of compatibility functions have been created to make it easy to convert
 ISAPNP drivers.  They should serve as a temporary solution only.
 
-They are as follows:
+They are as follows::
 
-struct pnp_card *pnp_find_card(unsigned short vendor,
-				 unsigned short device,
-				 struct pnp_card *from)
+	struct pnp_card *pnp_find_card(unsigned short vendor,
+				       unsigned short device,
+				       struct pnp_card *from)
 
-struct pnp_dev *pnp_find_dev(struct pnp_card *card,
-				unsigned short vendor,
-				unsigned short function,
-				struct pnp_dev *from)
+	struct pnp_dev *pnp_find_dev(struct pnp_card *card,
+				     unsigned short vendor,
+				     unsigned short function,
+				     struct pnp_dev *from)
 
diff --git a/Documentation/power/runtime_pm.txt b/Documentation/power/runtime_pm.txt
index 0fde3dcf077a..625549d4c74a 100644
--- a/Documentation/power/runtime_pm.txt
+++ b/Documentation/power/runtime_pm.txt
@@ -435,7 +435,8 @@ drivers/base/power/runtime.c and include/linux/pm_runtime.h:
       PM status to 'suspended' and update its parent's counter of 'active'
       children as appropriate (it is only valid to use this function if
       'power.runtime_error' is set or 'power.disable_depth' is greater than
-      zero)
+      zero); it will fail and return an error code if the device has a child
+      which is active and the 'power.ignore_children' flag is unset
 
   bool pm_runtime_active(struct device *dev);
     - return true if the device's runtime PM status is 'active' or its
diff --git a/Documentation/preempt-locking.txt b/Documentation/preempt-locking.txt
index e89ce6624af2..c945062be66c 100644
--- a/Documentation/preempt-locking.txt
+++ b/Documentation/preempt-locking.txt
@@ -1,10 +1,13 @@
-		  Proper Locking Under a Preemptible Kernel:
-		       Keeping Kernel Code Preempt-Safe
-			 Robert Love <rml@tech9.net>
-			  Last Updated: 28 Aug 2002
+===========================================================================
+Proper Locking Under a Preemptible Kernel: Keeping Kernel Code Preempt-Safe
+===========================================================================
 
+:Author: Robert Love <rml@tech9.net>
+:Last Updated: 28 Aug 2002
 
-INTRODUCTION
+
+Introduction
+============
 
 
 A preemptible kernel creates new locking issues.  The issues are the same as
@@ -17,9 +20,10 @@ requires protecting these situations.
  
 
 RULE #1: Per-CPU data structures need explicit protection
+^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
 
-Two similar problems arise. An example code snippet:
+Two similar problems arise. An example code snippet::
 
 	struct this_needs_locking tux[NR_CPUS];
 	tux[smp_processor_id()] = some_value;
@@ -35,6 +39,7 @@ You can also use put_cpu() and get_cpu(), which will disable preemption.
 
 
 RULE #2: CPU state must be protected.
+^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
 
 Under preemption, the state of the CPU must be protected.  This is arch-
@@ -52,6 +57,7 @@ However, fpu__restore() must be called with preemption disabled.
 
 
 RULE #3: Lock acquire and release must be performed by same task
+^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
 
 A lock acquired in one task must be released by the same task.  This
@@ -61,17 +67,20 @@ like this, acquire and release the task in the same code path and
 have the caller wait on an event by the other task.
 
 
-SOLUTION
+Solution
+========
 
 
 Data protection under preemption is achieved by disabling preemption for the
 duration of the critical region.
 
-preempt_enable()		decrement the preempt counter
-preempt_disable()		increment the preempt counter
-preempt_enable_no_resched()	decrement, but do not immediately preempt
-preempt_check_resched()		if needed, reschedule
-preempt_count()			return the preempt counter
+::
+
+  preempt_enable()		decrement the preempt counter
+  preempt_disable()		increment the preempt counter
+  preempt_enable_no_resched()	decrement, but do not immediately preempt
+  preempt_check_resched()	if needed, reschedule
+  preempt_count()		return the preempt counter
 
 The functions are nestable.  In other words, you can call preempt_disable
 n-times in a code path, and preemption will not be reenabled until the n-th
@@ -89,7 +98,7 @@ So use this implicit preemption-disabling property only if you know that the
 affected codepath does not do any of this. Best policy is to use this only for
 small, atomic code that you wrote and which calls no complex functions.
 
-Example:
+Example::
 
 	cpucache_t *cc; /* this is per-CPU */
 	preempt_disable();
@@ -102,7 +111,7 @@ Example:
 	return 0;
 
 Notice how the preemption statements must encompass every reference of the
-critical variables.  Another example:
+critical variables.  Another example::
 
 	int buf[NR_CPUS];
 	set_cpu_val(buf);
@@ -114,7 +123,8 @@ This code is not preempt-safe, but see how easily we can fix it by simply
 moving the spin_lock up two lines.
 
 
-PREVENTING PREEMPTION USING INTERRUPT DISABLING
+Preventing preemption using interrupt disabling
+===============================================
 
 
 It is possible to prevent a preemption event using local_irq_disable and
diff --git a/Documentation/printk-formats.txt b/Documentation/printk-formats.txt
index 619cdffa5d44..074670b98bac 100644
--- a/Documentation/printk-formats.txt
+++ b/Documentation/printk-formats.txt
@@ -1,5 +1,18 @@
-If variable is of Type,		use printk format specifier:
----------------------------------------------------------
+=========================================
+How to get printk format specifiers right
+=========================================
+
+:Author: Randy Dunlap <rdunlap@infradead.org>
+:Author: Andrew Murray <amurray@mpc-data.co.uk>
+
+
+Integer types
+=============
+
+::
+
+	If variable is of Type,		use printk format specifier:
+	------------------------------------------------------------
 		int			%d or %x
 		unsigned int		%u or %x
 		long			%ld or %lx
@@ -13,25 +26,29 @@ If variable is of Type,		use printk format specifier:
 		s64			%lld or %llx
 		u64			%llu or %llx
 
-If <type> is dependent on a config option for its size (e.g., sector_t,
-blkcnt_t) or is architecture-dependent for its size (e.g., tcflag_t), use a
-format specifier of its largest possible type and explicitly cast to it.
-Example:
+If <type> is dependent on a config option for its size (e.g., ``sector_t``,
+``blkcnt_t``) or is architecture-dependent for its size (e.g., ``tcflag_t``),
+use a format specifier of its largest possible type and explicitly cast to it.
+
+Example::
 
 	printk("test: sector number/total blocks: %llu/%llu\n",
 		(unsigned long long)sector, (unsigned long long)blockcount);
 
-Reminder: sizeof() result is of type size_t.
+Reminder: ``sizeof()`` result is of type ``size_t``.
 
-The kernel's printf does not support %n. For obvious reasons, floating
-point formats (%e, %f, %g, %a) are also not recognized. Use of any
+The kernel's printf does not support ``%n``. For obvious reasons, floating
+point formats (``%e, %f, %g, %a``) are also not recognized. Use of any
 unsupported specifier or length qualifier results in a WARN and early
 return from vsnprintf.
 
 Raw pointer value SHOULD be printed with %p. The kernel supports
 the following extended format specifiers for pointer types:
 
-Symbols/Function Pointers:
+Symbols/Function Pointers
+=========================
+
+::
 
 	%pF	versatile_init+0x0/0x110
 	%pf	versatile_init
@@ -41,99 +58,125 @@ Symbols/Function Pointers:
 	%ps	versatile_init
 	%pB	prev_fn_of_versatile_init+0x88/0x88
 
-	For printing symbols and function pointers. The 'S' and 's' specifiers
-	result in the symbol name with ('S') or without ('s') offsets. Where
-	this is used on a kernel without KALLSYMS - the symbol address is
-	printed instead.
+The ``F`` and ``f`` specifiers are for printing function pointers,
+for example, f->func, &gettimeofday. They have the same result as
+``S`` and ``s`` specifiers. But they do an extra conversion on
+ia64, ppc64 and parisc64 architectures where the function pointers
+are actually function descriptors.
+
+The ``S`` and ``s`` specifiers can be used for printing symbols
+from direct addresses, for example, __builtin_return_address(0),
+(void *)regs->ip. They result in the symbol name with (``S``) or
+without (``s``) offsets. If KALLSYMS are disabled then the symbol
+address is printed instead.
+
+The ``B`` specifier results in the symbol name with offsets and should be
+used when printing stack backtraces. The specifier takes into
+consideration the effect of compiler optimisations which may occur
+when tail-call``s are used and marked with the noreturn GCC attribute.
 
-	The 'B' specifier results in the symbol name with offsets and should be
-	used when printing stack backtraces. The specifier takes into
-	consideration the effect of compiler optimisations which may occur
-	when tail-call's are used and marked with the noreturn GCC attribute.
 
-	On ia64, ppc64 and parisc64 architectures function pointers are
-	actually function descriptors which must first be resolved. The 'F' and
-	'f' specifiers perform this resolution and then provide the same
-	functionality as the 'S' and 's' specifiers.
+Kernel Pointers
+===============
 
-Kernel Pointers:
+::
 
 	%pK	0x01234567 or 0x0123456789abcdef
 
-	For printing kernel pointers which should be hidden from unprivileged
-	users. The behaviour of %pK depends on the kptr_restrict sysctl - see
-	Documentation/sysctl/kernel.txt for more details.
+For printing kernel pointers which should be hidden from unprivileged
+users. The behaviour of ``%pK`` depends on the ``kptr_restrict sysctl`` - see
+Documentation/sysctl/kernel.txt for more details.
 
-Struct Resources:
+Struct Resources
+================
+
+::
 
 	%pr	[mem 0x60000000-0x6fffffff flags 0x2200] or
 		[mem 0x0000000060000000-0x000000006fffffff flags 0x2200]
 	%pR	[mem 0x60000000-0x6fffffff pref] or
 		[mem 0x0000000060000000-0x000000006fffffff pref]
 
-	For printing struct resources. The 'R' and 'r' specifiers result in a
-	printed resource with ('R') or without ('r') a decoded flags member.
-	Passed by reference.
+For printing struct resources. The ``R`` and ``r`` specifiers result in a
+printed resource with (``R``) or without (``r``) a decoded flags member.
+Passed by reference.
+
+Physical addresses types ``phys_addr_t``
+========================================
 
-Physical addresses types phys_addr_t:
+::
 
 	%pa[p]	0x01234567 or 0x0123456789abcdef
 
-	For printing a phys_addr_t type (and its derivatives, such as
-	resource_size_t) which can vary based on build options, regardless of
-	the width of the CPU data path. Passed by reference.
+For printing a ``phys_addr_t`` type (and its derivatives, such as
+``resource_size_t``) which can vary based on build options, regardless of
+the width of the CPU data path. Passed by reference.
 
-DMA addresses types dma_addr_t:
+DMA addresses types ``dma_addr_t``
+==================================
+
+::
 
 	%pad	0x01234567 or 0x0123456789abcdef
 
-	For printing a dma_addr_t type which can vary based on build options,
-	regardless of the width of the CPU data path. Passed by reference.
+For printing a ``dma_addr_t`` type which can vary based on build options,
+regardless of the width of the CPU data path. Passed by reference.
+
+Raw buffer as an escaped string
+===============================
 
-Raw buffer as an escaped string:
+::
 
 	%*pE[achnops]
 
-	For printing raw buffer as an escaped string. For the following buffer
+For printing raw buffer as an escaped string. For the following buffer::
 
 		1b 62 20 5c 43 07 22 90 0d 5d
 
-	few examples show how the conversion would be done (the result string
-	without surrounding quotes):
+few examples show how the conversion would be done (the result string
+without surrounding quotes)::
 
 		%*pE		"\eb \C\a"\220\r]"
 		%*pEhp		"\x1bb \C\x07"\x90\x0d]"
 		%*pEa		"\e\142\040\\\103\a\042\220\r\135"
 
-	The conversion rules are applied according to an optional combination
-	of flags (see string_escape_mem() kernel documentation for the
-	details):
-		a - ESCAPE_ANY
-		c - ESCAPE_SPECIAL
-		h - ESCAPE_HEX
-		n - ESCAPE_NULL
-		o - ESCAPE_OCTAL
-		p - ESCAPE_NP
-		s - ESCAPE_SPACE
-	By default ESCAPE_ANY_NP is used.
+The conversion rules are applied according to an optional combination
+of flags (see :c:func:`string_escape_mem` kernel documentation for the
+details):
+
+	- ``a`` - ESCAPE_ANY
+	- ``c`` - ESCAPE_SPECIAL
+	- ``h`` - ESCAPE_HEX
+	- ``n`` - ESCAPE_NULL
+	- ``o`` - ESCAPE_OCTAL
+	- ``p`` - ESCAPE_NP
+	- ``s`` - ESCAPE_SPACE
 
-	ESCAPE_ANY_NP is the sane choice for many cases, in particularly for
-	printing SSIDs.
+By default ESCAPE_ANY_NP is used.
 
-	If field width is omitted the 1 byte only will be escaped.
+ESCAPE_ANY_NP is the sane choice for many cases, in particularly for
+printing SSIDs.
 
-Raw buffer as a hex string:
+If field width is omitted the 1 byte only will be escaped.
+
+Raw buffer as a hex string
+==========================
+
+::
 
 	%*ph	00 01 02  ...  3f
 	%*phC	00:01:02: ... :3f
 	%*phD	00-01-02- ... -3f
 	%*phN	000102 ... 3f
 
-	For printing a small buffers (up to 64 bytes long) as a hex string with
-	certain separator. For the larger buffers consider to use
-	print_hex_dump().
+For printing a small buffers (up to 64 bytes long) as a hex string with
+certain separator. For the larger buffers consider to use
+:c:func:`print_hex_dump`.
+
+MAC/FDDI addresses
+==================
 
-MAC/FDDI addresses:
+::
 
 	%pM	00:01:02:03:04:05
 	%pMR	05:04:03:02:01:00
@@ -141,53 +184,62 @@ MAC/FDDI addresses:
 	%pm	000102030405
 	%pmR	050403020100
 
-	For printing 6-byte MAC/FDDI addresses in hex notation. The 'M' and 'm'
-	specifiers result in a printed address with ('M') or without ('m') byte
-	separators. The default byte separator is the colon (':').
+For printing 6-byte MAC/FDDI addresses in hex notation. The ``M`` and ``m``
+specifiers result in a printed address with (``M``) or without (``m``) byte
+separators. The default byte separator is the colon (``:``).
 
-	Where FDDI addresses are concerned the 'F' specifier can be used after
-	the 'M' specifier to use dash ('-') separators instead of the default
-	separator.
+Where FDDI addresses are concerned the ``F`` specifier can be used after
+the ``M`` specifier to use dash (``-``) separators instead of the default
+separator.
 
-	For Bluetooth addresses the 'R' specifier shall be used after the 'M'
-	specifier to use reversed byte order suitable for visual interpretation
-	of Bluetooth addresses which are in the little endian order.
+For Bluetooth addresses the ``R`` specifier shall be used after the ``M``
+specifier to use reversed byte order suitable for visual interpretation
+of Bluetooth addresses which are in the little endian order.
 
-	Passed by reference.
+Passed by reference.
+
+IPv4 addresses
+==============
 
-IPv4 addresses:
+::
 
 	%pI4	1.2.3.4
 	%pi4	001.002.003.004
 	%p[Ii]4[hnbl]
 
-	For printing IPv4 dot-separated decimal addresses. The 'I4' and 'i4'
-	specifiers result in a printed address with ('i4') or without ('I4')
-	leading zeros.
+For printing IPv4 dot-separated decimal addresses. The ``I4`` and ``i4``
+specifiers result in a printed address with (``i4``) or without (``I4``)
+leading zeros.
 
-	The additional 'h', 'n', 'b', and 'l' specifiers are used to specify
-	host, network, big or little endian order addresses respectively. Where
-	no specifier is provided the default network/big endian order is used.
+The additional ``h``, ``n``, ``b``, and ``l`` specifiers are used to specify
+host, network, big or little endian order addresses respectively. Where
+no specifier is provided the default network/big endian order is used.
 
-	Passed by reference.
+Passed by reference.
 
-IPv6 addresses:
+IPv6 addresses
+==============
+
+::
 
 	%pI6	0001:0002:0003:0004:0005:0006:0007:0008
 	%pi6	00010002000300040005000600070008
 	%pI6c	1:2:3:4:5:6:7:8
 
-	For printing IPv6 network-order 16-bit hex addresses. The 'I6' and 'i6'
-	specifiers result in a printed address with ('I6') or without ('i6')
-	colon-separators. Leading zeros are always used.
+For printing IPv6 network-order 16-bit hex addresses. The ``I6`` and ``i6``
+specifiers result in a printed address with (``I6``) or without (``i6``)
+colon-separators. Leading zeros are always used.
 
-	The additional 'c' specifier can be used with the 'I' specifier to
-	print a compressed IPv6 address as described by
-	http://tools.ietf.org/html/rfc5952
+The additional ``c`` specifier can be used with the ``I`` specifier to
+print a compressed IPv6 address as described by
+http://tools.ietf.org/html/rfc5952
 
-	Passed by reference.
+Passed by reference.
 
-IPv4/IPv6 addresses (generic, with port, flowinfo, scope):
+IPv4/IPv6 addresses (generic, with port, flowinfo, scope)
+=========================================================
+
+::
 
 	%pIS	1.2.3.4		or 0001:0002:0003:0004:0005:0006:0007:0008
 	%piS	001.002.003.004	or 00010002000300040005000600070008
@@ -195,87 +247,103 @@ IPv4/IPv6 addresses (generic, with port, flowinfo, scope):
 	%pISpc	1.2.3.4:12345	or [1:2:3:4:5:6:7:8]:12345
 	%p[Ii]S[pfschnbl]
 
-	For printing an IP address without the need to distinguish whether it's
-	of type AF_INET or AF_INET6, a pointer to a valid 'struct sockaddr',
-	specified through 'IS' or 'iS', can be passed to this format specifier.
+For printing an IP address without the need to distinguish whether it``s
+of type AF_INET or AF_INET6, a pointer to a valid ``struct sockaddr``,
+specified through ``IS`` or ``iS``, can be passed to this format specifier.
 
-	The additional 'p', 'f', and 's' specifiers are used to specify port
-	(IPv4, IPv6), flowinfo (IPv6) and scope (IPv6). Ports have a ':' prefix,
-	flowinfo a '/' and scope a '%', each followed by the actual value.
+The additional ``p``, ``f``, and ``s`` specifiers are used to specify port
+(IPv4, IPv6), flowinfo (IPv6) and scope (IPv6). Ports have a ``:`` prefix,
+flowinfo a ``/`` and scope a ``%``, each followed by the actual value.
 
-	In case of an IPv6 address the compressed IPv6 address as described by
-	http://tools.ietf.org/html/rfc5952 is being used if the additional
-	specifier 'c' is given. The IPv6 address is surrounded by '[', ']' in
-	case of additional specifiers 'p', 'f' or 's' as suggested by
-	https://tools.ietf.org/html/draft-ietf-6man-text-addr-representation-07
+In case of an IPv6 address the compressed IPv6 address as described by
+http://tools.ietf.org/html/rfc5952 is being used if the additional
+specifier ``c`` is given. The IPv6 address is surrounded by ``[``, ``]`` in
+case of additional specifiers ``p``, ``f`` or ``s`` as suggested by
+https://tools.ietf.org/html/draft-ietf-6man-text-addr-representation-07
 
-	In case of IPv4 addresses, the additional 'h', 'n', 'b', and 'l'
-	specifiers can be used as well and are ignored in case of an IPv6
-	address.
+In case of IPv4 addresses, the additional ``h``, ``n``, ``b``, and ``l``
+specifiers can be used as well and are ignored in case of an IPv6
+address.
 
-	Passed by reference.
+Passed by reference.
 
-	Further examples:
+Further examples::
 
 	%pISfc		1.2.3.4		or [1:2:3:4:5:6:7:8]/123456789
 	%pISsc		1.2.3.4		or [1:2:3:4:5:6:7:8]%1234567890
 	%pISpfc		1.2.3.4:12345	or [1:2:3:4:5:6:7:8]:12345/123456789
 
-UUID/GUID addresses:
+UUID/GUID addresses
+===================
+
+::
 
 	%pUb	00010203-0405-0607-0809-0a0b0c0d0e0f
 	%pUB	00010203-0405-0607-0809-0A0B0C0D0E0F
 	%pUl	03020100-0504-0706-0809-0a0b0c0e0e0f
 	%pUL	03020100-0504-0706-0809-0A0B0C0E0E0F
 
-	For printing 16-byte UUID/GUIDs addresses. The additional 'l', 'L',
-	'b' and 'B' specifiers are used to specify a little endian order in
-	lower ('l') or upper case ('L') hex characters - and big endian order
-	in lower ('b') or upper case ('B') hex characters.
+For printing 16-byte UUID/GUIDs addresses. The additional 'l', 'L',
+'b' and 'B' specifiers are used to specify a little endian order in
+lower ('l') or upper case ('L') hex characters - and big endian order
+in lower ('b') or upper case ('B') hex characters.
 
-	Where no additional specifiers are used the default big endian
-	order with lower case hex characters will be printed.
+Where no additional specifiers are used the default big endian
+order with lower case hex characters will be printed.
 
-	Passed by reference.
+Passed by reference.
+
+dentry names
+============
 
-dentry names:
+::
 
 	%pd{,2,3,4}
 	%pD{,2,3,4}
 
-	For printing dentry name; if we race with d_move(), the name might be
-	a mix of old and new ones, but it won't oops.  %pd dentry is a safer
-	equivalent of %s dentry->d_name.name we used to use, %pd<n> prints
-	n last components.  %pD does the same thing for struct file.
+For printing dentry name; if we race with :c:func:`d_move`, the name might be
+a mix of old and new ones, but it won't oops.  ``%pd`` dentry is a safer
+equivalent of ``%s`` ``dentry->d_name.name`` we used to use, ``%pd<n>`` prints
+``n`` last components.  ``%pD`` does the same thing for struct file.
 
-	Passed by reference.
+Passed by reference.
 
-block_device names:
+block_device names
+==================
+
+::
 
 	%pg	sda, sda1 or loop0p1
 
-	For printing name of block_device pointers.
+For printing name of block_device pointers.
+
+struct va_format
+================
 
-struct va_format:
+::
 
 	%pV
 
-	For printing struct va_format structures. These contain a format string
-	and va_list as follows:
+For printing struct va_format structures. These contain a format string
+and va_list as follows::
 
 	struct va_format {
 		const char *fmt;
 		va_list *va;
 	};
 
-	Implements a "recursive vsnprintf".
+Implements a "recursive vsnprintf".
 
-	Do not use this feature without some mechanism to verify the
-	correctness of the format string and va_list arguments.
+Do not use this feature without some mechanism to verify the
+correctness of the format string and va_list arguments.
 
-	Passed by reference.
+Passed by reference.
+
+kobjects
+========
+
+::
 
-kobjects:
 	%pO
 
 	Base specifier for kobject based structs. Must be followed with
@@ -311,61 +379,70 @@ kobjects:
 
 	Passed by reference.
 
-struct clk:
+
+struct clk
+==========
+
+::
 
 	%pC	pll1
 	%pCn	pll1
 	%pCr	1560000000
 
-	For printing struct clk structures. '%pC' and '%pCn' print the name
-	(Common Clock Framework) or address (legacy clock framework) of the
-	structure; '%pCr' prints the current clock rate.
+For printing struct clk structures. ``%pC`` and ``%pCn`` print the name
+(Common Clock Framework) or address (legacy clock framework) of the
+structure; ``%pCr`` prints the current clock rate.
 
-	Passed by reference.
+Passed by reference.
 
-bitmap and its derivatives such as cpumask and nodemask:
+bitmap and its derivatives such as cpumask and nodemask
+=======================================================
+
+::
 
 	%*pb	0779
 	%*pbl	0,3-6,8-10
 
-	For printing bitmap and its derivatives such as cpumask and nodemask,
-	%*pb output the bitmap with field width as the number of bits and %*pbl
-	output the bitmap as range list with field width as the number of bits.
+For printing bitmap and its derivatives such as cpumask and nodemask,
+``%*pb`` output the bitmap with field width as the number of bits and ``%*pbl``
+output the bitmap as range list with field width as the number of bits.
 
-	Passed by reference.
+Passed by reference.
+
+Flags bitfields such as page flags, gfp_flags
+=============================================
 
-Flags bitfields such as page flags, gfp_flags:
+::
 
 	%pGp	referenced|uptodate|lru|active|private
 	%pGg	GFP_USER|GFP_DMA32|GFP_NOWARN
 	%pGv	read|exec|mayread|maywrite|mayexec|denywrite
 
-	For printing flags bitfields as a collection of symbolic constants that
-	would construct the value. The type of flags is given by the third
-	character. Currently supported are [p]age flags, [v]ma_flags (both
-	expect unsigned long *) and [g]fp_flags (expects gfp_t *). The flag
-	names and print order depends on the particular	type.
+For printing flags bitfields as a collection of symbolic constants that
+would construct the value. The type of flags is given by the third
+character. Currently supported are [p]age flags, [v]ma_flags (both
+expect ``unsigned long *``) and [g]fp_flags (expects ``gfp_t *``). The flag
+names and print order depends on the particular	type.
 
-	Note that this format should not be used directly in TP_printk() part
-	of a tracepoint. Instead, use the show_*_flags() functions from
-	<trace/events/mmflags.h>.
+Note that this format should not be used directly in :c:func:`TP_printk()` part
+of a tracepoint. Instead, use the ``show_*_flags()`` functions from
+<trace/events/mmflags.h>.
 
-	Passed by reference.
+Passed by reference.
+
+Network device features
+=======================
 
-Network device features:
+::
 
 	%pNF	0x000000000000c000
 
-	For printing netdev_features_t.
+For printing netdev_features_t.
 
-	Passed by reference.
+Passed by reference.
 
-If you add other %p extensions, please extend lib/test_printf.c with
+If you add other ``%p`` extensions, please extend lib/test_printf.c with
 one or more test cases, if at all feasible.
 
 
 Thank you for your cooperation and attention.
-
-
-By Randy Dunlap <rdunlap@infradead.org> and
-Andrew Murray <amurray@mpc-data.co.uk>
diff --git a/Documentation/pwm.txt b/Documentation/pwm.txt
index 789b27c6ec99..8fbf0aa3ba2d 100644
--- a/Documentation/pwm.txt
+++ b/Documentation/pwm.txt
@@ -1,4 +1,6 @@
+======================================
 Pulse Width Modulation (PWM) interface
+======================================
 
 This provides an overview about the Linux PWM interface
 
@@ -16,7 +18,7 @@ Users of the legacy PWM API use unique IDs to refer to PWM devices.
 
 Instead of referring to a PWM device via its unique ID, board setup code
 should instead register a static mapping that can be used to match PWM
-consumers to providers, as given in the following example:
+consumers to providers, as given in the following example::
 
 	static struct pwm_lookup board_pwm_lookup[] = {
 		PWM_LOOKUP("tegra-pwm", 0, "pwm-backlight", NULL,
@@ -40,9 +42,9 @@ New users should use the pwm_get() function and pass to it the consumer
 device or a consumer name. pwm_put() is used to free the PWM device. Managed
 variants of these functions, devm_pwm_get() and devm_pwm_put(), also exist.
 
-After being requested, a PWM has to be configured using:
+After being requested, a PWM has to be configured using::
 
-int pwm_apply_state(struct pwm_device *pwm, struct pwm_state *state);
+	int pwm_apply_state(struct pwm_device *pwm, struct pwm_state *state);
 
 This API controls both the PWM period/duty_cycle config and the
 enable/disable state.
@@ -72,11 +74,14 @@ interface is provided to use the PWMs from userspace. It is exposed at
 pwmchipN, where N is the base of the PWM chip. Inside the directory you
 will find:
 
-npwm - The number of PWM channels this chip supports (read-only).
+  npwm
+    The number of PWM channels this chip supports (read-only).
 
-export - Exports a PWM channel for use with sysfs (write-only).
+  export
+    Exports a PWM channel for use with sysfs (write-only).
 
-unexport - Unexports a PWM channel from sysfs (write-only).
+  unexport
+   Unexports a PWM channel from sysfs (write-only).
 
 The PWM channels are numbered using a per-chip index from 0 to npwm-1.
 
@@ -84,21 +89,26 @@ When a PWM channel is exported a pwmX directory will be created in the
 pwmchipN directory it is associated with, where X is the number of the
 channel that was exported. The following properties will then be available:
 
-period - The total period of the PWM signal (read/write).
-	Value is in nanoseconds and is the sum of the active and inactive
-	time of the PWM.
+  period
+    The total period of the PWM signal (read/write).
+    Value is in nanoseconds and is the sum of the active and inactive
+    time of the PWM.
 
-duty_cycle - The active time of the PWM signal (read/write).
-	Value is in nanoseconds and must be less than the period.
+  duty_cycle
+    The active time of the PWM signal (read/write).
+    Value is in nanoseconds and must be less than the period.
 
-polarity - Changes the polarity of the PWM signal (read/write).
-	Writes to this property only work if the PWM chip supports changing
-	the polarity. The polarity can only be changed if the PWM is not
-	enabled. Value is the string "normal" or "inversed".
+  polarity
+    Changes the polarity of the PWM signal (read/write).
+    Writes to this property only work if the PWM chip supports changing
+    the polarity. The polarity can only be changed if the PWM is not
+    enabled. Value is the string "normal" or "inversed".
 
-enable - Enable/disable the PWM signal (read/write).
-	0 - disabled
-	1 - enabled
+  enable
+    Enable/disable the PWM signal (read/write).
+
+	- 0 - disabled
+	- 1 - enabled
 
 Implementing a PWM driver
 -------------------------
diff --git a/Documentation/rbtree.txt b/Documentation/rbtree.txt
index b9d9cc57be18..b8a8c70b0188 100644
--- a/Documentation/rbtree.txt
+++ b/Documentation/rbtree.txt
@@ -1,7 +1,10 @@
+=================================
 Red-black Trees (rbtree) in Linux
-January 18, 2007
-Rob Landley <rob@landley.net>
-=============================
+=================================
+
+
+:Date: January 18, 2007
+:Author: Rob Landley <rob@landley.net>
 
 What are red-black trees, and what are they for?
 ------------------------------------------------
@@ -56,7 +59,7 @@ user of the rbtree code.
 Creating a new rbtree
 ---------------------
 
-Data nodes in an rbtree tree are structures containing a struct rb_node member:
+Data nodes in an rbtree tree are structures containing a struct rb_node member::
 
   struct mytype {
   	struct rb_node node;
@@ -78,7 +81,7 @@ Searching for a value in an rbtree
 Writing a search function for your tree is fairly straightforward: start at the
 root, compare each value, and follow the left or right branch as necessary.
 
-Example:
+Example::
 
   struct mytype *my_search(struct rb_root *root, char *string)
   {
@@ -110,7 +113,7 @@ The search for insertion differs from the previous search by finding the
 location of the pointer on which to graft the new node.  The new node also
 needs a link to its parent node for rebalancing purposes.
 
-Example:
+Example::
 
   int my_insert(struct rb_root *root, struct mytype *data)
   {
@@ -140,11 +143,11 @@ Example:
 Removing or replacing existing data in an rbtree
 ------------------------------------------------
 
-To remove an existing node from a tree, call:
+To remove an existing node from a tree, call::
 
   void rb_erase(struct rb_node *victim, struct rb_root *tree);
 
-Example:
+Example::
 
   struct mytype *data = mysearch(&mytree, "walrus");
 
@@ -153,7 +156,7 @@ Example:
   	myfree(data);
   }
 
-To replace an existing node in a tree with a new one with the same key, call:
+To replace an existing node in a tree with a new one with the same key, call::
 
   void rb_replace_node(struct rb_node *old, struct rb_node *new,
   			struct rb_root *tree);
@@ -166,7 +169,7 @@ Iterating through the elements stored in an rbtree (in sort order)
 
 Four functions are provided for iterating through an rbtree's contents in
 sorted order.  These work on arbitrary trees, and should not need to be
-modified or wrapped (except for locking purposes):
+modified or wrapped (except for locking purposes)::
 
   struct rb_node *rb_first(struct rb_root *tree);
   struct rb_node *rb_last(struct rb_root *tree);
@@ -184,7 +187,7 @@ which the containing data structure may be accessed with the container_of()
 macro, and individual members may be accessed directly via
 rb_entry(node, type, member).
 
-Example:
+Example::
 
   struct rb_node *node;
   for (node = rb_first(&mytree); node; node = rb_next(node))
@@ -241,7 +244,8 @@ user should have a single rb_erase_augmented() call site in order to limit
 compiled code size.
 
 
-Sample usage:
+Sample usage
+^^^^^^^^^^^^
 
 Interval tree is an example of augmented rb tree. Reference -
 "Introduction to Algorithms" by Cormen, Leiserson, Rivest and Stein.
@@ -259,12 +263,12 @@ This "extra information" stored in each node is the maximum hi
 information can be maintained at each node just be looking at the node
 and its immediate children. And this will be used in O(log n) lookup
 for lowest match (lowest start address among all possible matches)
-with something like:
+with something like::
 
-struct interval_tree_node *
-interval_tree_first_match(struct rb_root *root,
-			  unsigned long start, unsigned long last)
-{
+  struct interval_tree_node *
+  interval_tree_first_match(struct rb_root *root,
+			    unsigned long start, unsigned long last)
+  {
 	struct interval_tree_node *node;
 
 	if (!root->rb_node)
@@ -301,13 +305,13 @@ interval_tree_first_match(struct rb_root *root,
 		}
 		return NULL;	/* No match */
 	}
-}
+  }
 
-Insertion/removal are defined using the following augmented callbacks:
+Insertion/removal are defined using the following augmented callbacks::
 
-static inline unsigned long
-compute_subtree_last(struct interval_tree_node *node)
-{
+  static inline unsigned long
+  compute_subtree_last(struct interval_tree_node *node)
+  {
 	unsigned long max = node->last, subtree_last;
 	if (node->rb.rb_left) {
 		subtree_last = rb_entry(node->rb.rb_left,
@@ -322,10 +326,10 @@ compute_subtree_last(struct interval_tree_node *node)
 			max = subtree_last;
 	}
 	return max;
-}
+  }
 
-static void augment_propagate(struct rb_node *rb, struct rb_node *stop)
-{
+  static void augment_propagate(struct rb_node *rb, struct rb_node *stop)
+  {
 	while (rb != stop) {
 		struct interval_tree_node *node =
 			rb_entry(rb, struct interval_tree_node, rb);
@@ -335,20 +339,20 @@ static void augment_propagate(struct rb_node *rb, struct rb_node *stop)
 		node->__subtree_last = subtree_last;
 		rb = rb_parent(&node->rb);
 	}
-}
+  }
 
-static void augment_copy(struct rb_node *rb_old, struct rb_node *rb_new)
-{
+  static void augment_copy(struct rb_node *rb_old, struct rb_node *rb_new)
+  {
 	struct interval_tree_node *old =
 		rb_entry(rb_old, struct interval_tree_node, rb);
 	struct interval_tree_node *new =
 		rb_entry(rb_new, struct interval_tree_node, rb);
 
 	new->__subtree_last = old->__subtree_last;
-}
+  }
 
-static void augment_rotate(struct rb_node *rb_old, struct rb_node *rb_new)
-{
+  static void augment_rotate(struct rb_node *rb_old, struct rb_node *rb_new)
+  {
 	struct interval_tree_node *old =
 		rb_entry(rb_old, struct interval_tree_node, rb);
 	struct interval_tree_node *new =
@@ -356,15 +360,15 @@ static void augment_rotate(struct rb_node *rb_old, struct rb_node *rb_new)
 
 	new->__subtree_last = old->__subtree_last;
 	old->__subtree_last = compute_subtree_last(old);
-}
+  }
 
-static const struct rb_augment_callbacks augment_callbacks = {
+  static const struct rb_augment_callbacks augment_callbacks = {
 	augment_propagate, augment_copy, augment_rotate
-};
+  };
 
-void interval_tree_insert(struct interval_tree_node *node,
-			  struct rb_root *root)
-{
+  void interval_tree_insert(struct interval_tree_node *node,
+			    struct rb_root *root)
+  {
 	struct rb_node **link = &root->rb_node, *rb_parent = NULL;
 	unsigned long start = node->start, last = node->last;
 	struct interval_tree_node *parent;
@@ -383,10 +387,10 @@ void interval_tree_insert(struct interval_tree_node *node,
 	node->__subtree_last = last;
 	rb_link_node(&node->rb, rb_parent, link);
 	rb_insert_augmented(&node->rb, root, &augment_callbacks);
-}
+  }
 
-void interval_tree_remove(struct interval_tree_node *node,
-			  struct rb_root *root)
-{
+  void interval_tree_remove(struct interval_tree_node *node,
+			    struct rb_root *root)
+  {
 	rb_erase_augmented(&node->rb, root, &augment_callbacks);
-}
+  }
diff --git a/Documentation/remoteproc.txt b/Documentation/remoteproc.txt
index f07597482351..77fb03acdbb4 100644
--- a/Documentation/remoteproc.txt
+++ b/Documentation/remoteproc.txt
@@ -1,6 +1,9 @@
+==========================
 Remote Processor Framework
+==========================
 
-1. Introduction
+Introduction
+============
 
 Modern SoCs typically have heterogeneous remote processor devices in asymmetric
 multiprocessing (AMP) configurations, which may be running different instances
@@ -26,44 +29,62 @@ remoteproc will add those devices. This makes it possible to reuse the
 existing virtio drivers with remote processor backends at a minimal development
 cost.
 
-2. User API
+User API
+========
+
+::
 
   int rproc_boot(struct rproc *rproc)
-    - Boot a remote processor (i.e. load its firmware, power it on, ...).
-      If the remote processor is already powered on, this function immediately
-      returns (successfully).
-      Returns 0 on success, and an appropriate error value otherwise.
-      Note: to use this function you should already have a valid rproc
-      handle. There are several ways to achieve that cleanly (devres, pdata,
-      the way remoteproc_rpmsg.c does this, or, if this becomes prevalent, we
-      might also consider using dev_archdata for this).
+
+Boot a remote processor (i.e. load its firmware, power it on, ...).
+
+If the remote processor is already powered on, this function immediately
+returns (successfully).
+
+Returns 0 on success, and an appropriate error value otherwise.
+Note: to use this function you should already have a valid rproc
+handle. There are several ways to achieve that cleanly (devres, pdata,
+the way remoteproc_rpmsg.c does this, or, if this becomes prevalent, we
+might also consider using dev_archdata for this).
+
+::
 
   void rproc_shutdown(struct rproc *rproc)
-    - Power off a remote processor (previously booted with rproc_boot()).
-      In case @rproc is still being used by an additional user(s), then
-      this function will just decrement the power refcount and exit,
-      without really powering off the device.
-      Every call to rproc_boot() must (eventually) be accompanied by a call
-      to rproc_shutdown(). Calling rproc_shutdown() redundantly is a bug.
-      Notes:
-      - we're not decrementing the rproc's refcount, only the power refcount.
-        which means that the @rproc handle stays valid even after
-        rproc_shutdown() returns, and users can still use it with a subsequent
-        rproc_boot(), if needed.
+
+Power off a remote processor (previously booted with rproc_boot()).
+In case @rproc is still being used by an additional user(s), then
+this function will just decrement the power refcount and exit,
+without really powering off the device.
+
+Every call to rproc_boot() must (eventually) be accompanied by a call
+to rproc_shutdown(). Calling rproc_shutdown() redundantly is a bug.
+
+.. note::
+
+  we're not decrementing the rproc's refcount, only the power refcount.
+  which means that the @rproc handle stays valid even after
+  rproc_shutdown() returns, and users can still use it with a subsequent
+  rproc_boot(), if needed.
+
+::
 
   struct rproc *rproc_get_by_phandle(phandle phandle)
-    - Find an rproc handle using a device tree phandle. Returns the rproc
-      handle on success, and NULL on failure. This function increments
-      the remote processor's refcount, so always use rproc_put() to
-      decrement it back once rproc isn't needed anymore.
 
-3. Typical usage
+Find an rproc handle using a device tree phandle. Returns the rproc
+handle on success, and NULL on failure. This function increments
+the remote processor's refcount, so always use rproc_put() to
+decrement it back once rproc isn't needed anymore.
+
+Typical usage
+=============
 
-#include <linux/remoteproc.h>
+::
 
-/* in case we were given a valid 'rproc' handle */
-int dummy_rproc_example(struct rproc *my_rproc)
-{
+  #include <linux/remoteproc.h>
+
+  /* in case we were given a valid 'rproc' handle */
+  int dummy_rproc_example(struct rproc *my_rproc)
+  {
 	int ret;
 
 	/* let's power on and boot our remote processor */
@@ -80,84 +101,111 @@ int dummy_rproc_example(struct rproc *my_rproc)
 
 	/* let's shut it down now */
 	rproc_shutdown(my_rproc);
-}
+  }
+
+API for implementors
+====================
 
-4. API for implementors
+::
 
   struct rproc *rproc_alloc(struct device *dev, const char *name,
 				const struct rproc_ops *ops,
 				const char *firmware, int len)
-    - Allocate a new remote processor handle, but don't register
-      it yet. Required parameters are the underlying device, the
-      name of this remote processor, platform-specific ops handlers,
-      the name of the firmware to boot this rproc with, and the
-      length of private data needed by the allocating rproc driver (in bytes).
-
-      This function should be used by rproc implementations during
-      initialization of the remote processor.
-      After creating an rproc handle using this function, and when ready,
-      implementations should then call rproc_add() to complete
-      the registration of the remote processor.
-      On success, the new rproc is returned, and on failure, NULL.
-
-      Note: _never_ directly deallocate @rproc, even if it was not registered
-      yet. Instead, when you need to unroll rproc_alloc(), use rproc_free().
+
+Allocate a new remote processor handle, but don't register
+it yet. Required parameters are the underlying device, the
+name of this remote processor, platform-specific ops handlers,
+the name of the firmware to boot this rproc with, and the
+length of private data needed by the allocating rproc driver (in bytes).
+
+This function should be used by rproc implementations during
+initialization of the remote processor.
+
+After creating an rproc handle using this function, and when ready,
+implementations should then call rproc_add() to complete
+the registration of the remote processor.
+
+On success, the new rproc is returned, and on failure, NULL.
+
+.. note::
+
+  **never** directly deallocate @rproc, even if it was not registered
+  yet. Instead, when you need to unroll rproc_alloc(), use rproc_free().
+
+::
 
   void rproc_free(struct rproc *rproc)
-    - Free an rproc handle that was allocated by rproc_alloc.
-      This function essentially unrolls rproc_alloc(), by decrementing the
-      rproc's refcount. It doesn't directly free rproc; that would happen
-      only if there are no other references to rproc and its refcount now
-      dropped to zero.
+
+Free an rproc handle that was allocated by rproc_alloc.
+
+This function essentially unrolls rproc_alloc(), by decrementing the
+rproc's refcount. It doesn't directly free rproc; that would happen
+only if there are no other references to rproc and its refcount now
+dropped to zero.
+
+::
 
   int rproc_add(struct rproc *rproc)
-    - Register @rproc with the remoteproc framework, after it has been
-      allocated with rproc_alloc().
-      This is called by the platform-specific rproc implementation, whenever
-      a new remote processor device is probed.
-      Returns 0 on success and an appropriate error code otherwise.
-      Note: this function initiates an asynchronous firmware loading
-      context, which will look for virtio devices supported by the rproc's
-      firmware.
-      If found, those virtio devices will be created and added, so as a result
-      of registering this remote processor, additional virtio drivers might get
-      probed.
+
+Register @rproc with the remoteproc framework, after it has been
+allocated with rproc_alloc().
+
+This is called by the platform-specific rproc implementation, whenever
+a new remote processor device is probed.
+
+Returns 0 on success and an appropriate error code otherwise.
+Note: this function initiates an asynchronous firmware loading
+context, which will look for virtio devices supported by the rproc's
+firmware.
+
+If found, those virtio devices will be created and added, so as a result
+of registering this remote processor, additional virtio drivers might get
+probed.
+
+::
 
   int rproc_del(struct rproc *rproc)
-    - Unroll rproc_add().
-      This function should be called when the platform specific rproc
-      implementation decides to remove the rproc device. it should
-      _only_ be called if a previous invocation of rproc_add()
-      has completed successfully.
 
-      After rproc_del() returns, @rproc is still valid, and its
-      last refcount should be decremented by calling rproc_free().
+Unroll rproc_add().
+
+This function should be called when the platform specific rproc
+implementation decides to remove the rproc device. it should
+_only_ be called if a previous invocation of rproc_add()
+has completed successfully.
 
-      Returns 0 on success and -EINVAL if @rproc isn't valid.
+After rproc_del() returns, @rproc is still valid, and its
+last refcount should be decremented by calling rproc_free().
+
+Returns 0 on success and -EINVAL if @rproc isn't valid.
+
+::
 
   void rproc_report_crash(struct rproc *rproc, enum rproc_crash_type type)
-    - Report a crash in a remoteproc
-      This function must be called every time a crash is detected by the
-      platform specific rproc implementation. This should not be called from a
-      non-remoteproc driver. This function can be called from atomic/interrupt
-      context.
 
-5. Implementation callbacks
+Report a crash in a remoteproc
+
+This function must be called every time a crash is detected by the
+platform specific rproc implementation. This should not be called from a
+non-remoteproc driver. This function can be called from atomic/interrupt
+context.
+
+Implementation callbacks
+========================
 
 These callbacks should be provided by platform-specific remoteproc
-drivers:
-
-/**
- * struct rproc_ops - platform-specific device handlers
- * @start:	power on the device and boot it
- * @stop:	power off the device
- * @kick:	kick a virtqueue (virtqueue id given as a parameter)
- */
-struct rproc_ops {
+drivers::
+
+  /**
+   * struct rproc_ops - platform-specific device handlers
+   * @start:	power on the device and boot it
+   * @stop:	power off the device
+   * @kick:	kick a virtqueue (virtqueue id given as a parameter)
+   */
+  struct rproc_ops {
 	int (*start)(struct rproc *rproc);
 	int (*stop)(struct rproc *rproc);
 	void (*kick)(struct rproc *rproc, int vqid);
-};
+  };
 
 Every remoteproc implementation should at least provide the ->start and ->stop
 handlers. If rpmsg/virtio functionality is also desired, then the ->kick handler
@@ -179,7 +227,8 @@ the exact virtqueue index to look in is optional: it is easy (and not
 too expensive) to go through the existing virtqueues and look for new buffers
 in the used rings.
 
-6. Binary Firmware Structure
+Binary Firmware Structure
+=========================
 
 At this point remoteproc only supports ELF32 firmware binaries. However,
 it is quite expected that other platforms/devices which we'd want to
@@ -207,43 +256,43 @@ resource entries that publish the existence of supported features
 or configurations by the remote processor, such as trace buffers and
 supported virtio devices (and their configurations).
 
-The resource table begins with this header:
-
-/**
- * struct resource_table - firmware resource table header
- * @ver: version number
- * @num: number of resource entries
- * @reserved: reserved (must be zero)
- * @offset: array of offsets pointing at the various resource entries
- *
- * The header of the resource table, as expressed by this structure,
- * contains a version number (should we need to change this format in the
- * future), the number of available resource entries, and their offsets
- * in the table.
- */
-struct resource_table {
+The resource table begins with this header::
+
+  /**
+   * struct resource_table - firmware resource table header
+   * @ver: version number
+   * @num: number of resource entries
+   * @reserved: reserved (must be zero)
+   * @offset: array of offsets pointing at the various resource entries
+   *
+   * The header of the resource table, as expressed by this structure,
+   * contains a version number (should we need to change this format in the
+   * future), the number of available resource entries, and their offsets
+   * in the table.
+   */
+  struct resource_table {
 	u32 ver;
 	u32 num;
 	u32 reserved[2];
 	u32 offset[0];
-} __packed;
+  } __packed;
 
 Immediately following this header are the resource entries themselves,
-each of which begins with the following resource entry header:
-
-/**
- * struct fw_rsc_hdr - firmware resource entry header
- * @type: resource type
- * @data: resource data
- *
- * Every resource entry begins with a 'struct fw_rsc_hdr' header providing
- * its @type. The content of the entry itself will immediately follow
- * this header, and it should be parsed according to the resource type.
- */
-struct fw_rsc_hdr {
+each of which begins with the following resource entry header::
+
+  /**
+   * struct fw_rsc_hdr - firmware resource entry header
+   * @type: resource type
+   * @data: resource data
+   *
+   * Every resource entry begins with a 'struct fw_rsc_hdr' header providing
+   * its @type. The content of the entry itself will immediately follow
+   * this header, and it should be parsed according to the resource type.
+   */
+  struct fw_rsc_hdr {
 	u32 type;
 	u8 data[0];
-} __packed;
+  } __packed;
 
 Some resources entries are mere announcements, where the host is informed
 of specific remoteproc configuration. Other entries require the host to
@@ -252,32 +301,32 @@ is expected, where the firmware requests a resource, and once allocated,
 the host should provide back its details (e.g. address of an allocated
 memory region).
 
-Here are the various resource types that are currently supported:
-
-/**
- * enum fw_resource_type - types of resource entries
- *
- * @RSC_CARVEOUT:   request for allocation of a physically contiguous
- *		    memory region.
- * @RSC_DEVMEM:     request to iommu_map a memory-based peripheral.
- * @RSC_TRACE:	    announces the availability of a trace buffer into which
- *		    the remote processor will be writing logs.
- * @RSC_VDEV:       declare support for a virtio device, and serve as its
- *		    virtio header.
- * @RSC_LAST:       just keep this one at the end
- *
- * Please note that these values are used as indices to the rproc_handle_rsc
- * lookup table, so please keep them sane. Moreover, @RSC_LAST is used to
- * check the validity of an index before the lookup table is accessed, so
- * please update it as needed.
- */
-enum fw_resource_type {
+Here are the various resource types that are currently supported::
+
+  /**
+   * enum fw_resource_type - types of resource entries
+   *
+   * @RSC_CARVEOUT:   request for allocation of a physically contiguous
+   *		    memory region.
+   * @RSC_DEVMEM:     request to iommu_map a memory-based peripheral.
+   * @RSC_TRACE:	    announces the availability of a trace buffer into which
+   *		    the remote processor will be writing logs.
+   * @RSC_VDEV:       declare support for a virtio device, and serve as its
+   *		    virtio header.
+   * @RSC_LAST:       just keep this one at the end
+   *
+   * Please note that these values are used as indices to the rproc_handle_rsc
+   * lookup table, so please keep them sane. Moreover, @RSC_LAST is used to
+   * check the validity of an index before the lookup table is accessed, so
+   * please update it as needed.
+   */
+  enum fw_resource_type {
 	RSC_CARVEOUT	= 0,
 	RSC_DEVMEM	= 1,
 	RSC_TRACE	= 2,
 	RSC_VDEV	= 3,
 	RSC_LAST	= 4,
-};
+  };
 
 For more details regarding a specific resource type, please see its
 dedicated structure in include/linux/remoteproc.h.
@@ -286,7 +335,8 @@ We also expect that platform-specific resource entries will show up
 at some point. When that happens, we could easily add a new RSC_PLATFORM
 type, and hand those resources to the platform-specific rproc driver to handle.
 
-7. Virtio and remoteproc
+Virtio and remoteproc
+=====================
 
 The firmware should provide remoteproc information about virtio devices
 that it supports, and their configurations: a RSC_VDEV resource entry
diff --git a/Documentation/rfkill.txt b/Documentation/rfkill.txt
index 8c174063b3f0..a289285d2412 100644
--- a/Documentation/rfkill.txt
+++ b/Documentation/rfkill.txt
@@ -1,13 +1,13 @@
+===============================
 rfkill - RF kill switch support
 ===============================
 
-1. Introduction
-2. Implementation details
-3. Kernel API
-4. Userspace support
 
+.. contents::
+   :depth: 2
 
-1. Introduction
+Introduction
+============
 
 The rfkill subsystem provides a generic interface to disabling any radio
 transmitter in the system. When a transmitter is blocked, it shall not
@@ -21,17 +21,24 @@ aircraft.
 The rfkill subsystem has a concept of "hard" and "soft" block, which
 differ little in their meaning (block == transmitters off) but rather in
 whether they can be changed or not:
- - hard block: read-only radio block that cannot be overridden by software
- - soft block: writable radio block (need not be readable) that is set by
-               the system software.
+
+ - hard block
+	read-only radio block that cannot be overridden by software
+
+ - soft block
+	writable radio block (need not be readable) that is set by
+        the system software.
 
 The rfkill subsystem has two parameters, rfkill.default_state and
-rfkill.master_switch_mode, which are documented in admin-guide/kernel-parameters.rst.
+rfkill.master_switch_mode, which are documented in
+admin-guide/kernel-parameters.rst.
 
 
-2. Implementation details
+Implementation details
+======================
 
 The rfkill subsystem is composed of three main components:
+
  * the rfkill core,
  * the deprecated rfkill-input module (an input layer handler, being
    replaced by userspace policy code) and
@@ -55,7 +62,8 @@ use the return value of rfkill_set_hw_state() unless the hardware actually
 keeps track of soft and hard block separately.
 
 
-3. Kernel API
+Kernel API
+==========
 
 
 Drivers for radio transmitters normally implement an rfkill driver.
@@ -69,7 +77,7 @@ For some platforms, it is possible that the hardware state changes during
 suspend/hibernation, in which case it will be necessary to update the rfkill
 core with the current state is at resume time.
 
-To create an rfkill driver, driver's Kconfig needs to have
+To create an rfkill driver, driver's Kconfig needs to have::
 
 	depends on RFKILL || !RFKILL
 
@@ -87,7 +95,8 @@ RFKill provides per-switch LED triggers, which can be used to drive LEDs
 according to the switch state (LED_FULL when blocked, LED_OFF otherwise).
 
 
-5. Userspace support
+Userspace support
+=================
 
 The recommended userspace interface to use is /dev/rfkill, which is a misc
 character device that allows userspace to obtain and set the state of rfkill
@@ -112,11 +121,11 @@ rfkill core framework.
 Additionally, each rfkill device is registered in sysfs and emits uevents.
 
 rfkill devices issue uevents (with an action of "change"), with the following
-environment variables set:
+environment variables set::
 
-RFKILL_NAME
-RFKILL_STATE
-RFKILL_TYPE
+	RFKILL_NAME
+	RFKILL_STATE
+	RFKILL_TYPE
 
 The contents of these variables corresponds to the "name", "state" and
 "type" sysfs files explained above.
diff --git a/Documentation/robust-futex-ABI.txt b/Documentation/robust-futex-ABI.txt
index 16eb314f56cc..8a5d34abf726 100644
--- a/Documentation/robust-futex-ABI.txt
+++ b/Documentation/robust-futex-ABI.txt
@@ -1,7 +1,9 @@
-Started by Paul Jackson <pj@sgi.com>
-
+====================
 The robust futex ABI
---------------------
+====================
+
+:Author: Started by Paul Jackson <pj@sgi.com>
+
 
 Robust_futexes provide a mechanism that is used in addition to normal
 futexes, for kernel assist of cleanup of held locks on task exit.
@@ -32,7 +34,7 @@ probably causing deadlock or other such failure of the other threads
 waiting on the same locks.
 
 A thread that anticipates possibly using robust_futexes should first
-issue the system call:
+issue the system call::
 
     asmlinkage long
     sys_set_robust_list(struct robust_list_head __user *head, size_t len);
@@ -91,7 +93,7 @@ that lock using the futex mechanism.
 When a thread has invoked the above system call to indicate it
 anticipates using robust_futexes, the kernel stores the passed in 'head'
 pointer for that task.  The task may retrieve that value later on by
-using the system call:
+using the system call::
 
     asmlinkage long
     sys_get_robust_list(int pid, struct robust_list_head __user **head_ptr,
@@ -135,6 +137,7 @@ manipulating this list), the user code must observe the following
 protocol on 'lock entry' insertion and removal:
 
 On insertion:
+
  1) set the 'list_op_pending' word to the address of the 'lock entry'
     to be inserted,
  2) acquire the futex lock,
@@ -143,6 +146,7 @@ On insertion:
  4) clear the 'list_op_pending' word.
 
 On removal:
+
  1) set the 'list_op_pending' word to the address of the 'lock entry'
     to be removed,
  2) remove the lock entry for this lock from the 'head' list,
diff --git a/Documentation/robust-futexes.txt b/Documentation/robust-futexes.txt
index 61c22d608759..6c42c75103eb 100644
--- a/Documentation/robust-futexes.txt
+++ b/Documentation/robust-futexes.txt
@@ -1,4 +1,8 @@
-Started by: Ingo Molnar <mingo@redhat.com>
+========================================
+A description of what robust futexes are
+========================================
+
+:Started by: Ingo Molnar <mingo@redhat.com>
 
 Background
 ----------
@@ -163,7 +167,7 @@ Implementation details
 ----------------------
 
 The patch adds two new syscalls: one to register the userspace list, and
-one to query the registered list pointer:
+one to query the registered list pointer::
 
  asmlinkage long
  sys_set_robust_list(struct robust_list_head __user *head,
@@ -185,7 +189,7 @@ straightforward. The kernel doesn't have any internal distinction between
 robust and normal futexes.
 
 If a futex is found to be held at exit time, the kernel sets the
-following bit of the futex word:
+following bit of the futex word::
 
 	#define FUTEX_OWNER_DIED        0x40000000
 
@@ -193,7 +197,7 @@ and wakes up the next futex waiter (if any). User-space does the rest of
 the cleanup.
 
 Otherwise, robust futexes are acquired by glibc by putting the TID into
-the futex field atomically. Waiters set the FUTEX_WAITERS bit:
+the futex field atomically. Waiters set the FUTEX_WAITERS bit::
 
 	#define FUTEX_WAITERS           0x80000000
 
diff --git a/Documentation/rpmsg.txt b/Documentation/rpmsg.txt
index a95e36a43288..24b7a9e1a5f9 100644
--- a/Documentation/rpmsg.txt
+++ b/Documentation/rpmsg.txt
@@ -1,10 +1,15 @@
+============================================
 Remote Processor Messaging (rpmsg) Framework
+============================================
 
-Note: this document describes the rpmsg bus and how to write rpmsg drivers.
-To learn how to add rpmsg support for new platforms, check out remoteproc.txt
-(also a resident of Documentation/).
+.. note::
 
-1. Introduction
+  This document describes the rpmsg bus and how to write rpmsg drivers.
+  To learn how to add rpmsg support for new platforms, check out remoteproc.txt
+  (also a resident of Documentation/).
+
+Introduction
+============
 
 Modern SoCs typically employ heterogeneous remote processor devices in
 asymmetric multiprocessing (AMP) configurations, which may be running
@@ -58,170 +63,222 @@ to their destination address (this is done by invoking the driver's rx handler
 with the payload of the inbound message).
 
 
-2. User API
+User API
+========
+
+::
 
   int rpmsg_send(struct rpmsg_channel *rpdev, void *data, int len);
-   - sends a message across to the remote processor on a given channel.
-     The caller should specify the channel, the data it wants to send,
-     and its length (in bytes). The message will be sent on the specified
-     channel, i.e. its source and destination address fields will be
-     set to the channel's src and dst addresses.
-
-     In case there are no TX buffers available, the function will block until
-     one becomes available (i.e. until the remote processor consumes
-     a tx buffer and puts it back on virtio's used descriptor ring),
-     or a timeout of 15 seconds elapses. When the latter happens,
-     -ERESTARTSYS is returned.
-     The function can only be called from a process context (for now).
-     Returns 0 on success and an appropriate error value on failure.
+
+sends a message across to the remote processor on a given channel.
+The caller should specify the channel, the data it wants to send,
+and its length (in bytes). The message will be sent on the specified
+channel, i.e. its source and destination address fields will be
+set to the channel's src and dst addresses.
+
+In case there are no TX buffers available, the function will block until
+one becomes available (i.e. until the remote processor consumes
+a tx buffer and puts it back on virtio's used descriptor ring),
+or a timeout of 15 seconds elapses. When the latter happens,
+-ERESTARTSYS is returned.
+
+The function can only be called from a process context (for now).
+Returns 0 on success and an appropriate error value on failure.
+
+::
 
   int rpmsg_sendto(struct rpmsg_channel *rpdev, void *data, int len, u32 dst);
-   - sends a message across to the remote processor on a given channel,
-     to a destination address provided by the caller.
-     The caller should specify the channel, the data it wants to send,
-     its length (in bytes), and an explicit destination address.
-     The message will then be sent to the remote processor to which the
-     channel belongs, using the channel's src address, and the user-provided
-     dst address (thus the channel's dst address will be ignored).
-
-     In case there are no TX buffers available, the function will block until
-     one becomes available (i.e. until the remote processor consumes
-     a tx buffer and puts it back on virtio's used descriptor ring),
-     or a timeout of 15 seconds elapses. When the latter happens,
-     -ERESTARTSYS is returned.
-     The function can only be called from a process context (for now).
-     Returns 0 on success and an appropriate error value on failure.
+
+sends a message across to the remote processor on a given channel,
+to a destination address provided by the caller.
+
+The caller should specify the channel, the data it wants to send,
+its length (in bytes), and an explicit destination address.
+
+The message will then be sent to the remote processor to which the
+channel belongs, using the channel's src address, and the user-provided
+dst address (thus the channel's dst address will be ignored).
+
+In case there are no TX buffers available, the function will block until
+one becomes available (i.e. until the remote processor consumes
+a tx buffer and puts it back on virtio's used descriptor ring),
+or a timeout of 15 seconds elapses. When the latter happens,
+-ERESTARTSYS is returned.
+
+The function can only be called from a process context (for now).
+Returns 0 on success and an appropriate error value on failure.
+
+::
 
   int rpmsg_send_offchannel(struct rpmsg_channel *rpdev, u32 src, u32 dst,
 							void *data, int len);
-   - sends a message across to the remote processor, using the src and dst
-     addresses provided by the user.
-     The caller should specify the channel, the data it wants to send,
-     its length (in bytes), and explicit source and destination addresses.
-     The message will then be sent to the remote processor to which the
-     channel belongs, but the channel's src and dst addresses will be
-     ignored (and the user-provided addresses will be used instead).
-
-     In case there are no TX buffers available, the function will block until
-     one becomes available (i.e. until the remote processor consumes
-     a tx buffer and puts it back on virtio's used descriptor ring),
-     or a timeout of 15 seconds elapses. When the latter happens,
-     -ERESTARTSYS is returned.
-     The function can only be called from a process context (for now).
-     Returns 0 on success and an appropriate error value on failure.
+
+
+sends a message across to the remote processor, using the src and dst
+addresses provided by the user.
+
+The caller should specify the channel, the data it wants to send,
+its length (in bytes), and explicit source and destination addresses.
+The message will then be sent to the remote processor to which the
+channel belongs, but the channel's src and dst addresses will be
+ignored (and the user-provided addresses will be used instead).
+
+In case there are no TX buffers available, the function will block until
+one becomes available (i.e. until the remote processor consumes
+a tx buffer and puts it back on virtio's used descriptor ring),
+or a timeout of 15 seconds elapses. When the latter happens,
+-ERESTARTSYS is returned.
+
+The function can only be called from a process context (for now).
+Returns 0 on success and an appropriate error value on failure.
+
+::
 
   int rpmsg_trysend(struct rpmsg_channel *rpdev, void *data, int len);
-   - sends a message across to the remote processor on a given channel.
-     The caller should specify the channel, the data it wants to send,
-     and its length (in bytes). The message will be sent on the specified
-     channel, i.e. its source and destination address fields will be
-     set to the channel's src and dst addresses.
 
-     In case there are no TX buffers available, the function will immediately
-     return -ENOMEM without waiting until one becomes available.
-     The function can only be called from a process context (for now).
-     Returns 0 on success and an appropriate error value on failure.
+sends a message across to the remote processor on a given channel.
+The caller should specify the channel, the data it wants to send,
+and its length (in bytes). The message will be sent on the specified
+channel, i.e. its source and destination address fields will be
+set to the channel's src and dst addresses.
+
+In case there are no TX buffers available, the function will immediately
+return -ENOMEM without waiting until one becomes available.
+
+The function can only be called from a process context (for now).
+Returns 0 on success and an appropriate error value on failure.
+
+::
 
   int rpmsg_trysendto(struct rpmsg_channel *rpdev, void *data, int len, u32 dst)
-   - sends a message across to the remote processor on a given channel,
-     to a destination address provided by the user.
-     The user should specify the channel, the data it wants to send,
-     its length (in bytes), and an explicit destination address.
-     The message will then be sent to the remote processor to which the
-     channel belongs, using the channel's src address, and the user-provided
-     dst address (thus the channel's dst address will be ignored).
-
-     In case there are no TX buffers available, the function will immediately
-     return -ENOMEM without waiting until one becomes available.
-     The function can only be called from a process context (for now).
-     Returns 0 on success and an appropriate error value on failure.
+
+
+sends a message across to the remote processor on a given channel,
+to a destination address provided by the user.
+
+The user should specify the channel, the data it wants to send,
+its length (in bytes), and an explicit destination address.
+
+The message will then be sent to the remote processor to which the
+channel belongs, using the channel's src address, and the user-provided
+dst address (thus the channel's dst address will be ignored).
+
+In case there are no TX buffers available, the function will immediately
+return -ENOMEM without waiting until one becomes available.
+
+The function can only be called from a process context (for now).
+Returns 0 on success and an appropriate error value on failure.
+
+::
 
   int rpmsg_trysend_offchannel(struct rpmsg_channel *rpdev, u32 src, u32 dst,
 							void *data, int len);
-   - sends a message across to the remote processor, using source and
-     destination addresses provided by the user.
-     The user should specify the channel, the data it wants to send,
-     its length (in bytes), and explicit source and destination addresses.
-     The message will then be sent to the remote processor to which the
-     channel belongs, but the channel's src and dst addresses will be
-     ignored (and the user-provided addresses will be used instead).
-
-     In case there are no TX buffers available, the function will immediately
-     return -ENOMEM without waiting until one becomes available.
-     The function can only be called from a process context (for now).
-     Returns 0 on success and an appropriate error value on failure.
+
+
+sends a message across to the remote processor, using source and
+destination addresses provided by the user.
+
+The user should specify the channel, the data it wants to send,
+its length (in bytes), and explicit source and destination addresses.
+The message will then be sent to the remote processor to which the
+channel belongs, but the channel's src and dst addresses will be
+ignored (and the user-provided addresses will be used instead).
+
+In case there are no TX buffers available, the function will immediately
+return -ENOMEM without waiting until one becomes available.
+
+The function can only be called from a process context (for now).
+Returns 0 on success and an appropriate error value on failure.
+
+::
 
   struct rpmsg_endpoint *rpmsg_create_ept(struct rpmsg_channel *rpdev,
 		void (*cb)(struct rpmsg_channel *, void *, int, void *, u32),
 		void *priv, u32 addr);
-   - every rpmsg address in the system is bound to an rx callback (so when
-     inbound messages arrive, they are dispatched by the rpmsg bus using the
-     appropriate callback handler) by means of an rpmsg_endpoint struct.
-
-     This function allows drivers to create such an endpoint, and by that,
-     bind a callback, and possibly some private data too, to an rpmsg address
-     (either one that is known in advance, or one that will be dynamically
-     assigned for them).
-
-     Simple rpmsg drivers need not call rpmsg_create_ept, because an endpoint
-     is already created for them when they are probed by the rpmsg bus
-     (using the rx callback they provide when they registered to the rpmsg bus).
-
-     So things should just work for simple drivers: they already have an
-     endpoint, their rx callback is bound to their rpmsg address, and when
-     relevant inbound messages arrive (i.e. messages which their dst address
-     equals to the src address of their rpmsg channel), the driver's handler
-     is invoked to process it.
-
-     That said, more complicated drivers might do need to allocate
-     additional rpmsg addresses, and bind them to different rx callbacks.
-     To accomplish that, those drivers need to call this function.
-     Drivers should provide their channel (so the new endpoint would bind
-     to the same remote processor their channel belongs to), an rx callback
-     function, an optional private data (which is provided back when the
-     rx callback is invoked), and an address they want to bind with the
-     callback. If addr is RPMSG_ADDR_ANY, then rpmsg_create_ept will
-     dynamically assign them an available rpmsg address (drivers should have
-     a very good reason why not to always use RPMSG_ADDR_ANY here).
-
-     Returns a pointer to the endpoint on success, or NULL on error.
+
+every rpmsg address in the system is bound to an rx callback (so when
+inbound messages arrive, they are dispatched by the rpmsg bus using the
+appropriate callback handler) by means of an rpmsg_endpoint struct.
+
+This function allows drivers to create such an endpoint, and by that,
+bind a callback, and possibly some private data too, to an rpmsg address
+(either one that is known in advance, or one that will be dynamically
+assigned for them).
+
+Simple rpmsg drivers need not call rpmsg_create_ept, because an endpoint
+is already created for them when they are probed by the rpmsg bus
+(using the rx callback they provide when they registered to the rpmsg bus).
+
+So things should just work for simple drivers: they already have an
+endpoint, their rx callback is bound to their rpmsg address, and when
+relevant inbound messages arrive (i.e. messages which their dst address
+equals to the src address of their rpmsg channel), the driver's handler
+is invoked to process it.
+
+That said, more complicated drivers might do need to allocate
+additional rpmsg addresses, and bind them to different rx callbacks.
+To accomplish that, those drivers need to call this function.
+Drivers should provide their channel (so the new endpoint would bind
+to the same remote processor their channel belongs to), an rx callback
+function, an optional private data (which is provided back when the
+rx callback is invoked), and an address they want to bind with the
+callback. If addr is RPMSG_ADDR_ANY, then rpmsg_create_ept will
+dynamically assign them an available rpmsg address (drivers should have
+a very good reason why not to always use RPMSG_ADDR_ANY here).
+
+Returns a pointer to the endpoint on success, or NULL on error.
+
+::
 
   void rpmsg_destroy_ept(struct rpmsg_endpoint *ept);
-   - destroys an existing rpmsg endpoint. user should provide a pointer
-     to an rpmsg endpoint that was previously created with rpmsg_create_ept().
+
+
+destroys an existing rpmsg endpoint. user should provide a pointer
+to an rpmsg endpoint that was previously created with rpmsg_create_ept().
+
+::
 
   int register_rpmsg_driver(struct rpmsg_driver *rpdrv);
-   - registers an rpmsg driver with the rpmsg bus. user should provide
-     a pointer to an rpmsg_driver struct, which contains the driver's
-     ->probe() and ->remove() functions, an rx callback, and an id_table
-     specifying the names of the channels this driver is interested to
-     be probed with.
+
+
+registers an rpmsg driver with the rpmsg bus. user should provide
+a pointer to an rpmsg_driver struct, which contains the driver's
+->probe() and ->remove() functions, an rx callback, and an id_table
+specifying the names of the channels this driver is interested to
+be probed with.
+
+::
 
   void unregister_rpmsg_driver(struct rpmsg_driver *rpdrv);
-   - unregisters an rpmsg driver from the rpmsg bus. user should provide
-     a pointer to a previously-registered rpmsg_driver struct.
-     Returns 0 on success, and an appropriate error value on failure.
 
 
-3. Typical usage
+unregisters an rpmsg driver from the rpmsg bus. user should provide
+a pointer to a previously-registered rpmsg_driver struct.
+Returns 0 on success, and an appropriate error value on failure.
+
+
+Typical usage
+=============
 
 The following is a simple rpmsg driver, that sends an "hello!" message
 on probe(), and whenever it receives an incoming message, it dumps its
 content to the console.
 
-#include <linux/kernel.h>
-#include <linux/module.h>
-#include <linux/rpmsg.h>
+::
+
+  #include <linux/kernel.h>
+  #include <linux/module.h>
+  #include <linux/rpmsg.h>
 
-static void rpmsg_sample_cb(struct rpmsg_channel *rpdev, void *data, int len,
+  static void rpmsg_sample_cb(struct rpmsg_channel *rpdev, void *data, int len,
 						void *priv, u32 src)
-{
+  {
 	print_hex_dump(KERN_INFO, "incoming message:", DUMP_PREFIX_NONE,
 						16, 1, data, len, true);
-}
+  }
 
-static int rpmsg_sample_probe(struct rpmsg_channel *rpdev)
-{
+  static int rpmsg_sample_probe(struct rpmsg_channel *rpdev)
+  {
 	int err;
 
 	dev_info(&rpdev->dev, "chnl: 0x%x -> 0x%x\n", rpdev->src, rpdev->dst);
@@ -234,32 +291,35 @@ static int rpmsg_sample_probe(struct rpmsg_channel *rpdev)
 	}
 
 	return 0;
-}
+  }
 
-static void rpmsg_sample_remove(struct rpmsg_channel *rpdev)
-{
+  static void rpmsg_sample_remove(struct rpmsg_channel *rpdev)
+  {
 	dev_info(&rpdev->dev, "rpmsg sample client driver is removed\n");
-}
+  }
 
-static struct rpmsg_device_id rpmsg_driver_sample_id_table[] = {
+  static struct rpmsg_device_id rpmsg_driver_sample_id_table[] = {
 	{ .name	= "rpmsg-client-sample" },
 	{ },
-};
-MODULE_DEVICE_TABLE(rpmsg, rpmsg_driver_sample_id_table);
+  };
+  MODULE_DEVICE_TABLE(rpmsg, rpmsg_driver_sample_id_table);
 
-static struct rpmsg_driver rpmsg_sample_client = {
+  static struct rpmsg_driver rpmsg_sample_client = {
 	.drv.name	= KBUILD_MODNAME,
 	.id_table	= rpmsg_driver_sample_id_table,
 	.probe		= rpmsg_sample_probe,
 	.callback	= rpmsg_sample_cb,
 	.remove		= rpmsg_sample_remove,
-};
-module_rpmsg_driver(rpmsg_sample_client);
+  };
+  module_rpmsg_driver(rpmsg_sample_client);
+
+.. note::
 
-Note: a similar sample which can be built and loaded can be found
-in samples/rpmsg/.
+   a similar sample which can be built and loaded can be found
+   in samples/rpmsg/.
 
-4. Allocations of rpmsg channels:
+Allocations of rpmsg channels
+=============================
 
 At this point we only support dynamic allocations of rpmsg channels.
 
diff --git a/Documentation/rtc.txt b/Documentation/rtc.txt
index ddc366026e00..c0c977445fb9 100644
--- a/Documentation/rtc.txt
+++ b/Documentation/rtc.txt
@@ -1,6 +1,6 @@
-
-	Real Time Clock (RTC) Drivers for Linux
-	=======================================
+=======================================
+Real Time Clock (RTC) Drivers for Linux
+=======================================
 
 When Linux developers talk about a "Real Time Clock", they usually mean
 something that tracks wall clock time and is battery backed so that it
@@ -32,8 +32,8 @@ only issue an alarm up to 24 hours in the future, other hardware may
 be able to schedule one any time in the upcoming century.
 
 
-	Old PC/AT-Compatible driver:  /dev/rtc
-	--------------------------------------
+Old PC/AT-Compatible driver:  /dev/rtc
+--------------------------------------
 
 All PCs (even Alpha machines) have a Real Time Clock built into them.
 Usually they are built into the chipset of the computer, but some may
@@ -105,8 +105,8 @@ that will be using this driver.  See the code at the end of this document.
 (The original /dev/rtc driver was written by Paul Gortmaker.)
 
 
-	New portable "RTC Class" drivers:  /dev/rtcN
-	--------------------------------------------
+New portable "RTC Class" drivers:  /dev/rtcN
+--------------------------------------------
 
 Because Linux supports many non-ACPI and non-PC platforms, some of which
 have more than one RTC style clock, it needed a more portable solution
@@ -136,35 +136,39 @@ a high functionality RTC is integrated into the SOC.  That system might read
 the system clock from the discrete RTC, but use the integrated one for all
 other tasks, because of its greater functionality.
 
-SYSFS INTERFACE
+SYSFS interface
 ---------------
 
 The sysfs interface under /sys/class/rtc/rtcN provides access to various
 rtc attributes without requiring the use of ioctls. All dates and times
 are in the RTC's timezone, rather than in system time.
 
-date:  	   	 RTC-provided date
-hctosys:   	 1 if the RTC provided the system time at boot via the
+================ ==============================================================
+date  	   	 RTC-provided date
+hctosys   	 1 if the RTC provided the system time at boot via the
 		 CONFIG_RTC_HCTOSYS kernel option, 0 otherwise
-max_user_freq:	 The maximum interrupt rate an unprivileged user may request
+max_user_freq	 The maximum interrupt rate an unprivileged user may request
 		 from this RTC.
-name:		 The name of the RTC corresponding to this sysfs directory
-since_epoch:	 The number of seconds since the epoch according to the RTC
-time:		 RTC-provided time
-wakealarm:	 The time at which the clock will generate a system wakeup
+name		 The name of the RTC corresponding to this sysfs directory
+since_epoch	 The number of seconds since the epoch according to the RTC
+time		 RTC-provided time
+wakealarm	 The time at which the clock will generate a system wakeup
 		 event. This is a one shot wakeup event, so must be reset
-		 after wake if a daily wakeup is required. Format is seconds since
-		 the epoch by default, or if there's a leading +, seconds in the
-		 future, or if there is a leading +=, seconds ahead of the current
-		 alarm.
-offset:		 The amount which the rtc clock has been adjusted in firmware.
+		 after wake if a daily wakeup is required. Format is seconds
+		 since the epoch by default, or if there's a leading +, seconds
+		 in the future, or if there is a leading +=, seconds ahead of
+		 the current alarm.
+offset		 The amount which the rtc clock has been adjusted in firmware.
 		 Visible only if the driver supports clock offset adjustment.
 		 The unit is parts per billion, i.e. The number of clock ticks
 		 which are added to or removed from the rtc's base clock per
 		 billion ticks. A positive value makes a day pass more slowly,
 		 longer, and a negative value makes a day pass more quickly.
+*/nvmem		 The non volatile storage exported as a raw file, as described
+		 in Documentation/nvmem/nvmem.txt
+================ ==============================================================
 
-IOCTL INTERFACE
+IOCTL interface
 ---------------
 
 The ioctl() calls supported by /dev/rtc are also supported by the RTC class
diff --git a/Documentation/security/keys/core.rst b/Documentation/security/keys/core.rst
index 0d831a7afe4f..1648fa80b3bf 100644
--- a/Documentation/security/keys/core.rst
+++ b/Documentation/security/keys/core.rst
@@ -894,6 +894,12 @@ The keyctl syscall functions are:
      To apply a keyring restriction the process must have Set Attribute
      permission and the keyring must not be previously restricted.
 
+     One application of restricted keyrings is to verify X.509 certificate
+     chains or individual certificate signatures using the asymmetric key type.
+     See Documentation/crypto/asymmetric-keys.txt for specific restrictions
+     applicable to the asymmetric key type.
+
+
 Kernel Services
 ===============
 
diff --git a/Documentation/sgi-ioc4.txt b/Documentation/sgi-ioc4.txt
index 876c96ae38db..72709222d3c0 100644
--- a/Documentation/sgi-ioc4.txt
+++ b/Documentation/sgi-ioc4.txt
@@ -1,3 +1,7 @@
+====================================
+SGI IOC4 PCI (multi function) device
+====================================
+
 The SGI IOC4 PCI device is a bit of a strange beast, so some notes on
 it are in order.
 
diff --git a/Documentation/siphash.txt b/Documentation/siphash.txt
index 908d348ff777..9965821ab333 100644
--- a/Documentation/siphash.txt
+++ b/Documentation/siphash.txt
@@ -1,6 +1,8 @@
-         SipHash - a short input PRF
------------------------------------------------
-Written by Jason A. Donenfeld <jason@zx2c4.com>
+===========================
+SipHash - a short input PRF
+===========================
+
+:Author: Written by Jason A. Donenfeld <jason@zx2c4.com>
 
 SipHash is a cryptographically secure PRF -- a keyed hash function -- that
 performs very well for short inputs, hence the name. It was designed by
@@ -13,58 +15,61 @@ an input buffer or several input integers. It spits out an integer that is
 indistinguishable from random. You may then use that integer as part of secure
 sequence numbers, secure cookies, or mask it off for use in a hash table.
 
-1. Generating a key
+Generating a key
+================
 
 Keys should always be generated from a cryptographically secure source of
-random numbers, either using get_random_bytes or get_random_once:
+random numbers, either using get_random_bytes or get_random_once::
 
-siphash_key_t key;
-get_random_bytes(&key, sizeof(key));
+	siphash_key_t key;
+	get_random_bytes(&key, sizeof(key));
 
 If you're not deriving your key from here, you're doing it wrong.
 
-2. Using the functions
+Using the functions
+===================
 
 There are two variants of the function, one that takes a list of integers, and
-one that takes a buffer:
+one that takes a buffer::
 
-u64 siphash(const void *data, size_t len, const siphash_key_t *key);
+	u64 siphash(const void *data, size_t len, const siphash_key_t *key);
 
-And:
+And::
 
-u64 siphash_1u64(u64, const siphash_key_t *key);
-u64 siphash_2u64(u64, u64, const siphash_key_t *key);
-u64 siphash_3u64(u64, u64, u64, const siphash_key_t *key);
-u64 siphash_4u64(u64, u64, u64, u64, const siphash_key_t *key);
-u64 siphash_1u32(u32, const siphash_key_t *key);
-u64 siphash_2u32(u32, u32, const siphash_key_t *key);
-u64 siphash_3u32(u32, u32, u32, const siphash_key_t *key);
-u64 siphash_4u32(u32, u32, u32, u32, const siphash_key_t *key);
+	u64 siphash_1u64(u64, const siphash_key_t *key);
+	u64 siphash_2u64(u64, u64, const siphash_key_t *key);
+	u64 siphash_3u64(u64, u64, u64, const siphash_key_t *key);
+	u64 siphash_4u64(u64, u64, u64, u64, const siphash_key_t *key);
+	u64 siphash_1u32(u32, const siphash_key_t *key);
+	u64 siphash_2u32(u32, u32, const siphash_key_t *key);
+	u64 siphash_3u32(u32, u32, u32, const siphash_key_t *key);
+	u64 siphash_4u32(u32, u32, u32, u32, const siphash_key_t *key);
 
 If you pass the generic siphash function something of a constant length, it
 will constant fold at compile-time and automatically choose one of the
 optimized functions.
 
-3. Hashtable key function usage:
+Hashtable key function usage::
 
-struct some_hashtable {
-	DECLARE_HASHTABLE(hashtable, 8);
-	siphash_key_t key;
-};
+	struct some_hashtable {
+		DECLARE_HASHTABLE(hashtable, 8);
+		siphash_key_t key;
+	};
 
-void init_hashtable(struct some_hashtable *table)
-{
-	get_random_bytes(&table->key, sizeof(table->key));
-}
+	void init_hashtable(struct some_hashtable *table)
+	{
+		get_random_bytes(&table->key, sizeof(table->key));
+	}
 
-static inline hlist_head *some_hashtable_bucket(struct some_hashtable *table, struct interesting_input *input)
-{
-	return &table->hashtable[siphash(input, sizeof(*input), &table->key) & (HASH_SIZE(table->hashtable) - 1)];
-}
+	static inline hlist_head *some_hashtable_bucket(struct some_hashtable *table, struct interesting_input *input)
+	{
+		return &table->hashtable[siphash(input, sizeof(*input), &table->key) & (HASH_SIZE(table->hashtable) - 1)];
+	}
 
 You may then iterate like usual over the returned hash bucket.
 
-4. Security
+Security
+========
 
 SipHash has a very high security margin, with its 128-bit key. So long as the
 key is kept secret, it is impossible for an attacker to guess the outputs of
@@ -73,7 +78,8 @@ is significant.
 
 Linux implements the "2-4" variant of SipHash.
 
-5. Struct-passing Pitfalls
+Struct-passing Pitfalls
+=======================
 
 Often times the XuY functions will not be large enough, and instead you'll
 want to pass a pre-filled struct to siphash. When doing this, it's important
@@ -81,30 +87,32 @@ to always ensure the struct has no padding holes. The easiest way to do this
 is to simply arrange the members of the struct in descending order of size,
 and to use offsetendof() instead of sizeof() for getting the size. For
 performance reasons, if possible, it's probably a good thing to align the
-struct to the right boundary. Here's an example:
-
-const struct {
-	struct in6_addr saddr;
-	u32 counter;
-	u16 dport;
-} __aligned(SIPHASH_ALIGNMENT) combined = {
-	.saddr = *(struct in6_addr *)saddr,
-	.counter = counter,
-	.dport = dport
-};
-u64 h = siphash(&combined, offsetofend(typeof(combined), dport), &secret);
-
-6. Resources
+struct to the right boundary. Here's an example::
+
+	const struct {
+		struct in6_addr saddr;
+		u32 counter;
+		u16 dport;
+	} __aligned(SIPHASH_ALIGNMENT) combined = {
+		.saddr = *(struct in6_addr *)saddr,
+		.counter = counter,
+		.dport = dport
+	};
+	u64 h = siphash(&combined, offsetofend(typeof(combined), dport), &secret);
+
+Resources
+=========
 
 Read the SipHash paper if you're interested in learning more:
 https://131002.net/siphash/siphash.pdf
 
+-------------------------------------------------------------------------------
 
-~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~
-
+===============================================
 HalfSipHash - SipHash's insecure younger cousin
------------------------------------------------
-Written by Jason A. Donenfeld <jason@zx2c4.com>
+===============================================
+
+:Author: Written by Jason A. Donenfeld <jason@zx2c4.com>
 
 On the off-chance that SipHash is not fast enough for your needs, you might be
 able to justify using HalfSipHash, a terrifying but potentially useful
@@ -120,7 +128,8 @@ then when you can be absolutely certain that the outputs will never be
 transmitted out of the kernel. This is only remotely useful over `jhash` as a
 means of mitigating hashtable flooding denial of service attacks.
 
-1. Generating a key
+Generating a key
+================
 
 Keys should always be generated from a cryptographically secure source of
 random numbers, either using get_random_bytes or get_random_once:
@@ -130,44 +139,49 @@ get_random_bytes(&key, sizeof(key));
 
 If you're not deriving your key from here, you're doing it wrong.
 
-2. Using the functions
+Using the functions
+===================
 
 There are two variants of the function, one that takes a list of integers, and
-one that takes a buffer:
+one that takes a buffer::
 
-u32 hsiphash(const void *data, size_t len, const hsiphash_key_t *key);
+	u32 hsiphash(const void *data, size_t len, const hsiphash_key_t *key);
 
-And:
+And::
 
-u32 hsiphash_1u32(u32, const hsiphash_key_t *key);
-u32 hsiphash_2u32(u32, u32, const hsiphash_key_t *key);
-u32 hsiphash_3u32(u32, u32, u32, const hsiphash_key_t *key);
-u32 hsiphash_4u32(u32, u32, u32, u32, const hsiphash_key_t *key);
+	u32 hsiphash_1u32(u32, const hsiphash_key_t *key);
+	u32 hsiphash_2u32(u32, u32, const hsiphash_key_t *key);
+	u32 hsiphash_3u32(u32, u32, u32, const hsiphash_key_t *key);
+	u32 hsiphash_4u32(u32, u32, u32, u32, const hsiphash_key_t *key);
 
 If you pass the generic hsiphash function something of a constant length, it
 will constant fold at compile-time and automatically choose one of the
 optimized functions.
 
-3. Hashtable key function usage:
+Hashtable key function usage
+============================
+
+::
 
-struct some_hashtable {
-	DECLARE_HASHTABLE(hashtable, 8);
-	hsiphash_key_t key;
-};
+	struct some_hashtable {
+		DECLARE_HASHTABLE(hashtable, 8);
+		hsiphash_key_t key;
+	};
 
-void init_hashtable(struct some_hashtable *table)
-{
-	get_random_bytes(&table->key, sizeof(table->key));
-}
+	void init_hashtable(struct some_hashtable *table)
+	{
+		get_random_bytes(&table->key, sizeof(table->key));
+	}
 
-static inline hlist_head *some_hashtable_bucket(struct some_hashtable *table, struct interesting_input *input)
-{
-	return &table->hashtable[hsiphash(input, sizeof(*input), &table->key) & (HASH_SIZE(table->hashtable) - 1)];
-}
+	static inline hlist_head *some_hashtable_bucket(struct some_hashtable *table, struct interesting_input *input)
+	{
+		return &table->hashtable[hsiphash(input, sizeof(*input), &table->key) & (HASH_SIZE(table->hashtable) - 1)];
+	}
 
 You may then iterate like usual over the returned hash bucket.
 
-4. Performance
+Performance
+===========
 
 HalfSipHash is roughly 3 times slower than JenkinsHash. For many replacements,
 this will not be a problem, as the hashtable lookup isn't the bottleneck. And
diff --git a/Documentation/smsc_ece1099.txt b/Documentation/smsc_ece1099.txt
index 6b492e82b43d..079277421eaf 100644
--- a/Documentation/smsc_ece1099.txt
+++ b/Documentation/smsc_ece1099.txt
@@ -1,3 +1,7 @@
+=================================================
+Msc Keyboard Scan Expansion/GPIO Expansion device
+=================================================
+
 What is smsc-ece1099?
 ----------------------
 
diff --git a/Documentation/static-keys.txt b/Documentation/static-keys.txt
index ef419fd0897f..b83dfa1c0602 100644
--- a/Documentation/static-keys.txt
+++ b/Documentation/static-keys.txt
@@ -1,30 +1,34 @@
-			Static Keys
-			-----------
+===========
+Static Keys
+===========
 
-DEPRECATED API:
+.. warning::
 
-The use of 'struct static_key' directly, is now DEPRECATED. In addition
-static_key_{true,false}() is also DEPRECATED. IE DO NOT use the following:
+   DEPRECATED API:
 
-struct static_key false = STATIC_KEY_INIT_FALSE;
-struct static_key true = STATIC_KEY_INIT_TRUE;
-static_key_true()
-static_key_false()
+   The use of 'struct static_key' directly, is now DEPRECATED. In addition
+   static_key_{true,false}() is also DEPRECATED. IE DO NOT use the following::
 
-The updated API replacements are:
+	struct static_key false = STATIC_KEY_INIT_FALSE;
+	struct static_key true = STATIC_KEY_INIT_TRUE;
+	static_key_true()
+	static_key_false()
 
-DEFINE_STATIC_KEY_TRUE(key);
-DEFINE_STATIC_KEY_FALSE(key);
-DEFINE_STATIC_KEY_ARRAY_TRUE(keys, count);
-DEFINE_STATIC_KEY_ARRAY_FALSE(keys, count);
-static_branch_likely()
-static_branch_unlikely()
+   The updated API replacements are::
 
-0) Abstract
+	DEFINE_STATIC_KEY_TRUE(key);
+	DEFINE_STATIC_KEY_FALSE(key);
+	DEFINE_STATIC_KEY_ARRAY_TRUE(keys, count);
+	DEFINE_STATIC_KEY_ARRAY_FALSE(keys, count);
+	static_branch_likely()
+	static_branch_unlikely()
+
+Abstract
+========
 
 Static keys allows the inclusion of seldom used features in
 performance-sensitive fast-path kernel code, via a GCC feature and a code
-patching technique. A quick example:
+patching technique. A quick example::
 
 	DEFINE_STATIC_KEY_FALSE(key);
 
@@ -45,7 +49,8 @@ The static_branch_unlikely() branch will be generated into the code with as litt
 impact to the likely code path as possible.
 
 
-1) Motivation
+Motivation
+==========
 
 
 Currently, tracepoints are implemented using a conditional branch. The
@@ -60,7 +65,8 @@ possible. Although tracepoints are the original motivation for this work, other
 kernel code paths should be able to make use of the static keys facility.
 
 
-2) Solution
+Solution
+========
 
 
 gcc (v4.5) adds a new 'asm goto' statement that allows branching to a label:
@@ -71,7 +77,7 @@ Using the 'asm goto', we can create branches that are either taken or not taken
 by default, without the need to check memory. Then, at run-time, we can patch
 the branch site to change the branch direction.
 
-For example, if we have a simple branch that is disabled by default:
+For example, if we have a simple branch that is disabled by default::
 
 	if (static_branch_unlikely(&key))
 		printk("I am the true branch\n");
@@ -87,14 +93,15 @@ optimization.
 This lowlevel patching mechanism is called 'jump label patching', and it gives
 the basis for the static keys facility.
 
-3) Static key label API, usage and examples:
+Static key label API, usage and examples
+========================================
 
 
-In order to make use of this optimization you must first define a key:
+In order to make use of this optimization you must first define a key::
 
 	DEFINE_STATIC_KEY_TRUE(key);
 
-or:
+or::
 
 	DEFINE_STATIC_KEY_FALSE(key);
 
@@ -102,14 +109,14 @@ or:
 The key must be global, that is, it can't be allocated on the stack or dynamically
 allocated at run-time.
 
-The key is then used in code as:
+The key is then used in code as::
 
         if (static_branch_unlikely(&key))
                 do unlikely code
         else
                 do likely code
 
-Or:
+Or::
 
         if (static_branch_likely(&key))
                 do likely code
@@ -120,15 +127,15 @@ Keys defined via DEFINE_STATIC_KEY_TRUE(), or DEFINE_STATIC_KEY_FALSE, may
 be used in either static_branch_likely() or static_branch_unlikely()
 statements.
 
-Branch(es) can be set true via:
+Branch(es) can be set true via::
 
-static_branch_enable(&key);
+	static_branch_enable(&key);
 
-or false via:
+or false via::
 
-static_branch_disable(&key);
+	static_branch_disable(&key);
 
-The branch(es) can then be switched via reference counts:
+The branch(es) can then be switched via reference counts::
 
 	static_branch_inc(&key);
 	...
@@ -142,11 +149,11 @@ static_branch_inc(), will change the branch back to true. Likewise, if the
 key is initialized false, a 'static_branch_inc()', will change the branch to
 true. And then a 'static_branch_dec()', will again make the branch false.
 
-Where an array of keys is required, it can be defined as:
+Where an array of keys is required, it can be defined as::
 
 	DEFINE_STATIC_KEY_ARRAY_TRUE(keys, count);
 
-or:
+or::
 
 	DEFINE_STATIC_KEY_ARRAY_FALSE(keys, count);
 
@@ -159,96 +166,98 @@ simply fall back to a traditional, load, test, and jump sequence. Also, the
 struct jump_entry table must be at least 4-byte aligned because the
 static_key->entry field makes use of the two least significant bits.
 
-* select HAVE_ARCH_JUMP_LABEL, see: arch/x86/Kconfig
-
-* #define JUMP_LABEL_NOP_SIZE, see: arch/x86/include/asm/jump_label.h
+* ``select HAVE_ARCH_JUMP_LABEL``,
+    see: arch/x86/Kconfig
 
-* __always_inline bool arch_static_branch(struct static_key *key, bool branch), see:
-					arch/x86/include/asm/jump_label.h
+* ``#define JUMP_LABEL_NOP_SIZE``,
+    see: arch/x86/include/asm/jump_label.h
 
-* __always_inline bool arch_static_branch_jump(struct static_key *key, bool branch),
-					see: arch/x86/include/asm/jump_label.h
+* ``__always_inline bool arch_static_branch(struct static_key *key, bool branch)``,
+    see: arch/x86/include/asm/jump_label.h
 
-* void arch_jump_label_transform(struct jump_entry *entry, enum jump_label_type type),
-					see: arch/x86/kernel/jump_label.c
+* ``__always_inline bool arch_static_branch_jump(struct static_key *key, bool branch)``,
+    see: arch/x86/include/asm/jump_label.h
 
-* __init_or_module void arch_jump_label_transform_static(struct jump_entry *entry, enum jump_label_type type),
-					see: arch/x86/kernel/jump_label.c
+* ``void arch_jump_label_transform(struct jump_entry *entry, enum jump_label_type type)``,
+    see: arch/x86/kernel/jump_label.c
 
+* ``__init_or_module void arch_jump_label_transform_static(struct jump_entry *entry, enum jump_label_type type)``,
+    see: arch/x86/kernel/jump_label.c
 
-* struct jump_entry, see: arch/x86/include/asm/jump_label.h
+* ``struct jump_entry``,
+    see: arch/x86/include/asm/jump_label.h
 
 
 5) Static keys / jump label analysis, results (x86_64):
 
 
 As an example, let's add the following branch to 'getppid()', such that the
-system call now looks like:
+system call now looks like::
 
-SYSCALL_DEFINE0(getppid)
-{
+  SYSCALL_DEFINE0(getppid)
+  {
         int pid;
 
-+       if (static_branch_unlikely(&key))
-+               printk("I am the true branch\n");
+  +     if (static_branch_unlikely(&key))
+  +             printk("I am the true branch\n");
 
         rcu_read_lock();
         pid = task_tgid_vnr(rcu_dereference(current->real_parent));
         rcu_read_unlock();
 
         return pid;
-}
-
-The resulting instructions with jump labels generated by GCC is:
-
-ffffffff81044290 <sys_getppid>:
-ffffffff81044290:       55                      push   %rbp
-ffffffff81044291:       48 89 e5                mov    %rsp,%rbp
-ffffffff81044294:       e9 00 00 00 00          jmpq   ffffffff81044299 <sys_getppid+0x9>
-ffffffff81044299:       65 48 8b 04 25 c0 b6    mov    %gs:0xb6c0,%rax
-ffffffff810442a0:       00 00
-ffffffff810442a2:       48 8b 80 80 02 00 00    mov    0x280(%rax),%rax
-ffffffff810442a9:       48 8b 80 b0 02 00 00    mov    0x2b0(%rax),%rax
-ffffffff810442b0:       48 8b b8 e8 02 00 00    mov    0x2e8(%rax),%rdi
-ffffffff810442b7:       e8 f4 d9 00 00          callq  ffffffff81051cb0 <pid_vnr>
-ffffffff810442bc:       5d                      pop    %rbp
-ffffffff810442bd:       48 98                   cltq
-ffffffff810442bf:       c3                      retq
-ffffffff810442c0:       48 c7 c7 e3 54 98 81    mov    $0xffffffff819854e3,%rdi
-ffffffff810442c7:       31 c0                   xor    %eax,%eax
-ffffffff810442c9:       e8 71 13 6d 00          callq  ffffffff8171563f <printk>
-ffffffff810442ce:       eb c9                   jmp    ffffffff81044299 <sys_getppid+0x9>
-
-Without the jump label optimization it looks like:
-
-ffffffff810441f0 <sys_getppid>:
-ffffffff810441f0:       8b 05 8a 52 d8 00       mov    0xd8528a(%rip),%eax        # ffffffff81dc9480 <key>
-ffffffff810441f6:       55                      push   %rbp
-ffffffff810441f7:       48 89 e5                mov    %rsp,%rbp
-ffffffff810441fa:       85 c0                   test   %eax,%eax
-ffffffff810441fc:       75 27                   jne    ffffffff81044225 <sys_getppid+0x35>
-ffffffff810441fe:       65 48 8b 04 25 c0 b6    mov    %gs:0xb6c0,%rax
-ffffffff81044205:       00 00
-ffffffff81044207:       48 8b 80 80 02 00 00    mov    0x280(%rax),%rax
-ffffffff8104420e:       48 8b 80 b0 02 00 00    mov    0x2b0(%rax),%rax
-ffffffff81044215:       48 8b b8 e8 02 00 00    mov    0x2e8(%rax),%rdi
-ffffffff8104421c:       e8 2f da 00 00          callq  ffffffff81051c50 <pid_vnr>
-ffffffff81044221:       5d                      pop    %rbp
-ffffffff81044222:       48 98                   cltq
-ffffffff81044224:       c3                      retq
-ffffffff81044225:       48 c7 c7 13 53 98 81    mov    $0xffffffff81985313,%rdi
-ffffffff8104422c:       31 c0                   xor    %eax,%eax
-ffffffff8104422e:       e8 60 0f 6d 00          callq  ffffffff81715193 <printk>
-ffffffff81044233:       eb c9                   jmp    ffffffff810441fe <sys_getppid+0xe>
-ffffffff81044235:       66 66 2e 0f 1f 84 00    data32 nopw %cs:0x0(%rax,%rax,1)
-ffffffff8104423c:       00 00 00 00
+  }
+
+The resulting instructions with jump labels generated by GCC is::
+
+  ffffffff81044290 <sys_getppid>:
+  ffffffff81044290:       55                      push   %rbp
+  ffffffff81044291:       48 89 e5                mov    %rsp,%rbp
+  ffffffff81044294:       e9 00 00 00 00          jmpq   ffffffff81044299 <sys_getppid+0x9>
+  ffffffff81044299:       65 48 8b 04 25 c0 b6    mov    %gs:0xb6c0,%rax
+  ffffffff810442a0:       00 00
+  ffffffff810442a2:       48 8b 80 80 02 00 00    mov    0x280(%rax),%rax
+  ffffffff810442a9:       48 8b 80 b0 02 00 00    mov    0x2b0(%rax),%rax
+  ffffffff810442b0:       48 8b b8 e8 02 00 00    mov    0x2e8(%rax),%rdi
+  ffffffff810442b7:       e8 f4 d9 00 00          callq  ffffffff81051cb0 <pid_vnr>
+  ffffffff810442bc:       5d                      pop    %rbp
+  ffffffff810442bd:       48 98                   cltq
+  ffffffff810442bf:       c3                      retq
+  ffffffff810442c0:       48 c7 c7 e3 54 98 81    mov    $0xffffffff819854e3,%rdi
+  ffffffff810442c7:       31 c0                   xor    %eax,%eax
+  ffffffff810442c9:       e8 71 13 6d 00          callq  ffffffff8171563f <printk>
+  ffffffff810442ce:       eb c9                   jmp    ffffffff81044299 <sys_getppid+0x9>
+
+Without the jump label optimization it looks like::
+
+  ffffffff810441f0 <sys_getppid>:
+  ffffffff810441f0:       8b 05 8a 52 d8 00       mov    0xd8528a(%rip),%eax        # ffffffff81dc9480 <key>
+  ffffffff810441f6:       55                      push   %rbp
+  ffffffff810441f7:       48 89 e5                mov    %rsp,%rbp
+  ffffffff810441fa:       85 c0                   test   %eax,%eax
+  ffffffff810441fc:       75 27                   jne    ffffffff81044225 <sys_getppid+0x35>
+  ffffffff810441fe:       65 48 8b 04 25 c0 b6    mov    %gs:0xb6c0,%rax
+  ffffffff81044205:       00 00
+  ffffffff81044207:       48 8b 80 80 02 00 00    mov    0x280(%rax),%rax
+  ffffffff8104420e:       48 8b 80 b0 02 00 00    mov    0x2b0(%rax),%rax
+  ffffffff81044215:       48 8b b8 e8 02 00 00    mov    0x2e8(%rax),%rdi
+  ffffffff8104421c:       e8 2f da 00 00          callq  ffffffff81051c50 <pid_vnr>
+  ffffffff81044221:       5d                      pop    %rbp
+  ffffffff81044222:       48 98                   cltq
+  ffffffff81044224:       c3                      retq
+  ffffffff81044225:       48 c7 c7 13 53 98 81    mov    $0xffffffff81985313,%rdi
+  ffffffff8104422c:       31 c0                   xor    %eax,%eax
+  ffffffff8104422e:       e8 60 0f 6d 00          callq  ffffffff81715193 <printk>
+  ffffffff81044233:       eb c9                   jmp    ffffffff810441fe <sys_getppid+0xe>
+  ffffffff81044235:       66 66 2e 0f 1f 84 00    data32 nopw %cs:0x0(%rax,%rax,1)
+  ffffffff8104423c:       00 00 00 00
 
 Thus, the disable jump label case adds a 'mov', 'test' and 'jne' instruction
 vs. the jump label case just has a 'no-op' or 'jmp 0'. (The jmp 0, is patched
 to a 5 byte atomic no-op instruction at boot-time.) Thus, the disabled jump
-label case adds:
+label case adds::
 
-6 (mov) + 2 (test) + 2 (jne) = 10 - 5 (5 byte jump 0) = 5 addition bytes.
+  6 (mov) + 2 (test) + 2 (jne) = 10 - 5 (5 byte jump 0) = 5 addition bytes.
 
 If we then include the padding bytes, the jump label code saves, 16 total bytes
 of instruction memory for this small function. In this case the non-jump label
@@ -262,7 +271,7 @@ Since there are a number of static key API uses in the scheduler paths,
 'pipe-test' (also known as 'perf bench sched pipe') can be used to show the
 performance improvement. Testing done on 3.3.0-rc2:
 
-jump label disabled:
+jump label disabled::
 
  Performance counter stats for 'bash -c /tmp/pipe-test' (50 runs):
 
@@ -279,7 +288,7 @@ jump label disabled:
 
        1.601607384 seconds time elapsed                                          ( +-  0.07% )
 
-jump label enabled:
+jump label enabled::
 
  Performance counter stats for 'bash -c /tmp/pipe-test' (50 runs):
 
diff --git a/Documentation/svga.txt b/Documentation/svga.txt
index cd66ec836e4f..119f1515b1ac 100644
--- a/Documentation/svga.txt
+++ b/Documentation/svga.txt
@@ -1,24 +1,31 @@
-		       Video Mode Selection Support 2.13
-		    (c) 1995--1999 Martin Mares, <mj@ucw.cz>
---------------------------------------------------------------------------------
+.. include:: <isonum.txt>
 
-1. Intro
-~~~~~~~~
-   This small document describes the "Video Mode Selection" feature which
+=================================
+Video Mode Selection Support 2.13
+=================================
+
+:Copyright: |copy| 1995--1999 Martin Mares, <mj@ucw.cz>
+
+Intro
+~~~~~
+
+This small document describes the "Video Mode Selection" feature which
 allows the use of various special video modes supported by the video BIOS. Due
 to usage of the BIOS, the selection is limited to boot time (before the
 kernel decompression starts) and works only on 80X86 machines.
 
-   **  Short intro for the impatient: Just use vga=ask for the first time,
-   **  enter `scan' on the video mode prompt, pick the mode you want to use,
-   **  remember its mode ID (the four-digit hexadecimal number) and then
-   **  set the vga parameter to this number (converted to decimal first).
+.. note::
 
-   The video mode to be used is selected by a kernel parameter which can be
+   Short intro for the impatient: Just use vga=ask for the first time,
+   enter ``scan`` on the video mode prompt, pick the mode you want to use,
+   remember its mode ID (the four-digit hexadecimal number) and then
+   set the vga parameter to this number (converted to decimal first).
+
+The video mode to be used is selected by a kernel parameter which can be
 specified in the kernel Makefile (the SVGA_MODE=... line) or by the "vga=..."
 option of LILO (or some other boot loader you use) or by the "vidmode" utility
 (present in standard Linux utility packages). You can use the following values
-of this parameter:
+of this parameter::
 
    NORMAL_VGA - Standard 80x25 mode available on all display adapters.
 
@@ -37,77 +44,79 @@ of this parameter:
       for exact meaning of the ID). Warning: rdev and LILO don't support
       hexadecimal numbers -- you have to convert it to decimal manually.
 
-2. Menu
-~~~~~~~
-   The ASK_VGA mode causes the kernel to offer a video mode menu upon
+Menu
+~~~~
+
+The ASK_VGA mode causes the kernel to offer a video mode menu upon
 bootup. It displays a "Press <RETURN> to see video modes available, <SPACE>
 to continue or wait 30 secs" message. If you press <RETURN>, you enter the
 menu, if you press <SPACE> or wait 30 seconds, the kernel will boot up in
 the standard 80x25 mode.
 
-   The menu looks like:
+The menu looks like::
 
-Video adapter: <name-of-detected-video-adapter>
-Mode:    COLSxROWS:
-0  0F00  80x25
-1  0F01  80x50
-2  0F02  80x43
-3  0F03  80x26
-....
-Enter mode number or `scan': <flashing-cursor-here>
+	Video adapter: <name-of-detected-video-adapter>
+	Mode:    COLSxROWS:
+	0  0F00  80x25
+	1  0F01  80x50
+	2  0F02  80x43
+	3  0F03  80x26
+	....
+	Enter mode number or ``scan``: <flashing-cursor-here>
 
-   <name-of-detected-video-adapter> tells what video adapter did Linux detect
+<name-of-detected-video-adapter> tells what video adapter did Linux detect
 -- it's either a generic adapter name (MDA, CGA, HGC, EGA, VGA, VESA VGA [a VGA
 with VESA-compliant BIOS]) or a chipset name (e.g., Trident). Direct detection
 of chipsets is turned off by default (see CONFIG_VIDEO_SVGA in chapter 4 to see
 how to enable it if you really want) as it's inherently unreliable due to
 absolutely insane PC design.
 
-   "0  0F00  80x25" means that the first menu item (the menu items are numbered
+"0  0F00  80x25" means that the first menu item (the menu items are numbered
 from "0" to "9" and from "a" to "z") is a 80x25 mode with ID=0x0f00 (see the
 next section for a description of mode IDs).
 
-   <flashing-cursor-here> encourages you to enter the item number or mode ID
+<flashing-cursor-here> encourages you to enter the item number or mode ID
 you wish to set and press <RETURN>. If the computer complains something about
 "Unknown mode ID", it is trying to tell you that it isn't possible to set such
 a mode. It's also possible to press only <RETURN> which leaves the current mode.
 
-   The mode list usually contains a few basic modes and some VESA modes.  In
+The mode list usually contains a few basic modes and some VESA modes.  In
 case your chipset has been detected, some chipset-specific modes are shown as
 well (some of these might be missing or unusable on your machine as different
 BIOSes are often shipped with the same card and the mode numbers depend purely
 on the VGA BIOS).
 
-   The modes displayed on the menu are partially sorted: The list starts with
+The modes displayed on the menu are partially sorted: The list starts with
 the standard modes (80x25 and 80x50) followed by "special" modes (80x28 and
 80x43), local modes (if the local modes feature is enabled), VESA modes and
 finally SVGA modes for the auto-detected adapter.
 
-   If you are not happy with the mode list offered (e.g., if you think your card
+If you are not happy with the mode list offered (e.g., if you think your card
 is able to do more), you can enter "scan" instead of item number / mode ID.  The
 program will try to ask the BIOS for all possible video mode numbers and test
 what happens then. The screen will be probably flashing wildly for some time and
 strange noises will be heard from inside the monitor and so on and then, really
 all consistent video modes supported by your BIOS will appear (plus maybe some
-`ghost modes'). If you are afraid this could damage your monitor, don't use this
-function.
+``ghost modes``). If you are afraid this could damage your monitor, don't use
+this function.
 
-   After scanning, the mode ordering is a bit different: the auto-detected SVGA
-modes are not listed at all and the modes revealed by `scan' are shown before
+After scanning, the mode ordering is a bit different: the auto-detected SVGA
+modes are not listed at all and the modes revealed by ``scan`` are shown before
 all VESA modes.
 
-3. Mode IDs
-~~~~~~~~~~~
-   Because of the complexity of all the video stuff, the video mode IDs
+Mode IDs
+~~~~~~~~
+
+Because of the complexity of all the video stuff, the video mode IDs
 used here are also a bit complex. A video mode ID is a 16-bit number usually
 expressed in a hexadecimal notation (starting with "0x"). You can set a mode
 by entering its mode directly if you know it even if it isn't shown on the menu.
 
-The ID numbers can be divided to three regions:
+The ID numbers can be divided to those regions::
 
    0x0000 to 0x00ff - menu item references. 0x0000 is the first item. Don't use
 	outside the menu as this can change from boot to boot (especially if you
-	have used the `scan' feature).
+	have used the ``scan`` feature).
 
    0x0100 to 0x017f - standard BIOS modes. The ID is a BIOS video mode number
 	(as presented to INT 10, function 00) increased by 0x0100.
@@ -142,53 +151,54 @@ The ID numbers can be divided to three regions:
 	0xffff	equivalent to 0x0f00 (standard 80x25)
 	0xfffe	equivalent to 0x0f01 (EGA 80x43 or VGA 80x50)
 
-   If you add 0x8000 to the mode ID, the program will try to recalculate
+If you add 0x8000 to the mode ID, the program will try to recalculate
 vertical display timing according to mode parameters, which can be used to
 eliminate some annoying bugs of certain VGA BIOSes (usually those used for
 cards with S3 chipsets and old Cirrus Logic BIOSes) -- mainly extra lines at the
 end of the display.
 
-4. Options
-~~~~~~~~~~
-   Some options can be set in the source text (in arch/i386/boot/video.S).
+Options
+~~~~~~~
+
+Some options can be set in the source text (in arch/i386/boot/video.S).
 All of them are simple #define's -- change them to #undef's when you want to
 switch them off. Currently supported:
 
-   CONFIG_VIDEO_SVGA - enables autodetection of SVGA cards. This is switched
+CONFIG_VIDEO_SVGA - enables autodetection of SVGA cards. This is switched
 off by default as it's a bit unreliable due to terribly bad PC design. If you
-really want to have the adapter autodetected (maybe in case the `scan' feature
+really want to have the adapter autodetected (maybe in case the ``scan`` feature
 doesn't work on your machine), switch this on and don't cry if the results
 are not completely sane. In case you really need this feature, please drop me
 a mail as I think of removing it some day.
 
-   CONFIG_VIDEO_VESA - enables autodetection of VESA modes. If it doesn't work
+CONFIG_VIDEO_VESA - enables autodetection of VESA modes. If it doesn't work
 on your machine (or displays a "Error: Scanning of VESA modes failed" message),
 you can switch it off and report as a bug.
 
-   CONFIG_VIDEO_COMPACT - enables compacting of the video mode list. If there
+CONFIG_VIDEO_COMPACT - enables compacting of the video mode list. If there
 are more modes with the same screen size, only the first one is kept (see above
 for more info on mode ordering). However, in very strange cases it's possible
 that the first "version" of the mode doesn't work although some of the others
 do -- in this case turn this switch off to see the rest.
 
-   CONFIG_VIDEO_RETAIN - enables retaining of screen contents when switching
+CONFIG_VIDEO_RETAIN - enables retaining of screen contents when switching
 video modes. Works only with some boot loaders which leave enough room for the
 buffer. (If you have old LILO, you can adjust heap_end_ptr and loadflags
 in setup.S, but it's better to upgrade the boot loader...)
 
-   CONFIG_VIDEO_LOCAL - enables inclusion of "local modes" in the list. The
+CONFIG_VIDEO_LOCAL - enables inclusion of "local modes" in the list. The
 local modes are added automatically to the beginning of the list not depending
 on hardware configuration. The local modes are listed in the source text after
 the "local_mode_table:" line. The comment before this line describes the format
 of the table (which also includes a video card name to be displayed on the
 top of the menu).
 
-   CONFIG_VIDEO_400_HACK - force setting of 400 scan lines for standard VGA
+CONFIG_VIDEO_400_HACK - force setting of 400 scan lines for standard VGA
 modes. This option is intended to be used on certain buggy BIOSes which draw
 some useless logo using font download and then fail to reset the correct mode.
 Don't use unless needed as it forces resetting the video card.
 
-   CONFIG_VIDEO_GFX_HACK - includes special hack for setting of graphics modes
+CONFIG_VIDEO_GFX_HACK - includes special hack for setting of graphics modes
 to be used later by special drivers (e.g., 800x600 on IBM ThinkPad -- see
 ftp://ftp.phys.keio.ac.jp/pub/XFree86/800x600/XF86Configs/XF86Config.IBM_TP560).
 Allows to set _any_ BIOS mode including graphic ones and forcing specific
@@ -196,33 +206,36 @@ text screen resolution instead of peeking it from BIOS variables. Don't use
 unless you think you know what you're doing. To activate this setup, use
 mode number 0x0f08 (see section 3).
 
-5. Still doesn't work?
-~~~~~~~~~~~~~~~~~~~~~~
-   When the mode detection doesn't work (e.g., the mode list is incorrect or
+Still doesn't work?
+~~~~~~~~~~~~~~~~~~~
+
+When the mode detection doesn't work (e.g., the mode list is incorrect or
 the machine hangs instead of displaying the menu), try to switch off some of
 the configuration options listed in section 4. If it fails, you can still use
 your kernel with the video mode set directly via the kernel parameter.
 
-   In either case, please send me a bug report containing what _exactly_
+In either case, please send me a bug report containing what _exactly_
 happens and how do the configuration switches affect the behaviour of the bug.
 
-   If you start Linux from M$-DOS, you might also use some DOS tools for
+If you start Linux from M$-DOS, you might also use some DOS tools for
 video mode setting. In this case, you must specify the 0x0f04 mode ("leave
 current settings") to Linux, because if you don't and you use any non-standard
 mode, Linux will switch to 80x25 automatically.
 
-   If you set some extended mode and there's one or more extra lines on the
+If you set some extended mode and there's one or more extra lines on the
 bottom of the display containing already scrolled-out text, your VGA BIOS
 contains the most common video BIOS bug called "incorrect vertical display
 end setting". Adding 0x8000 to the mode ID might fix the problem. Unfortunately,
 this must be done manually -- no autodetection mechanisms are available.
 
-   If you have a VGA card and your display still looks as on EGA, your BIOS
+If you have a VGA card and your display still looks as on EGA, your BIOS
 is probably broken and you need to set the CONFIG_VIDEO_400_HACK switch to
 force setting of the correct mode.
 
-6. History
-~~~~~~~~~~
+History
+~~~~~~~
+
+=============== ================================================================
 1.0 (??-Nov-95)	First version supporting all adapters supported by the old
 		setup.S + Cirrus Logic 54XX. Present in some 1.3.4? kernels
 		and then removed due to instability on some machines.
@@ -260,17 +273,18 @@ force setting of the correct mode.
 		  original version written by hhanemaa@cs.ruu.nl, patched by
 		  Jeff Chua, rewritten by me).
 		- Screen store/restore fixed.
-2.8 (14-Apr-96)	- Previous release was not compilable without CONFIG_VIDEO_SVGA.
+2.8 (14-Apr-96) - Previous release was not compilable without CONFIG_VIDEO_SVGA.
 		- Better recognition of text modes during mode scan.
 2.9 (12-May-96)	- Ignored VESA modes 0x80 - 0xff (more VESA BIOS bugs!)
-2.10 (11-Nov-96)- The whole thing made optional.
+2.10(11-Nov-96) - The whole thing made optional.
 		- Added the CONFIG_VIDEO_400_HACK switch.
 		- Added the CONFIG_VIDEO_GFX_HACK switch.
 		- Code cleanup.
-2.11 (03-May-97)- Yet another cleanup, now including also the documentation.
-		- Direct testing of SVGA adapters turned off by default, `scan'
+2.11(03-May-97) - Yet another cleanup, now including also the documentation.
+		- Direct testing of SVGA adapters turned off by default, ``scan``
 		  offered explicitly on the prompt line.
 		- Removed the doc section describing adding of new probing
 		  functions as I try to get rid of _all_ hardware probing here.
-2.12 (25-May-98)- Added support for VESA frame buffer graphics.
-2.13 (14-May-99)- Minor documentation fixes.
+2.12(25-May-98) Added support for VESA frame buffer graphics.
+2.13(14-May-99) Minor documentation fixes.
+=============== ================================================================
diff --git a/Documentation/sysctl/net.txt b/Documentation/sysctl/net.txt
index 14db18c970b1..28596e03220b 100644
--- a/Documentation/sysctl/net.txt
+++ b/Documentation/sysctl/net.txt
@@ -35,9 +35,34 @@ Table : Subdirectories in /proc/sys/net
 bpf_jit_enable
 --------------
 
-This enables Berkeley Packet Filter Just in Time compiler.
-Currently supported on x86_64 architecture, bpf_jit provides a framework
-to speed packet filtering, the one used by tcpdump/libpcap for example.
+This enables the BPF Just in Time (JIT) compiler. BPF is a flexible
+and efficient infrastructure allowing to execute bytecode at various
+hook points. It is used in a number of Linux kernel subsystems such
+as networking (e.g. XDP, tc), tracing (e.g. kprobes, uprobes, tracepoints)
+and security (e.g. seccomp). LLVM has a BPF back end that can compile
+restricted C into a sequence of BPF instructions. After program load
+through bpf(2) and passing a verifier in the kernel, a JIT will then
+translate these BPF proglets into native CPU instructions. There are
+two flavors of JITs, the newer eBPF JIT currently supported on:
+  - x86_64
+  - arm64
+  - ppc64
+  - sparc64
+  - mips64
+  - s390x
+
+And the older cBPF JIT supported on the following archs:
+  - arm
+  - mips
+  - ppc
+  - sparc
+
+eBPF JITs are a superset of cBPF JITs, meaning the kernel will
+migrate cBPF instructions into eBPF instructions and then JIT
+compile them transparently. Older cBPF JITs can only translate
+tcpdump filters, seccomp rules, etc, but not mentioned eBPF
+programs loaded through bpf(2).
+
 Values :
 	0 - disable the JIT (default value)
 	1 - enable the JIT
@@ -46,9 +71,9 @@ Values :
 bpf_jit_harden
 --------------
 
-This enables hardening for the Berkeley Packet Filter Just in Time compiler.
-Supported are eBPF JIT backends. Enabling hardening trades off performance,
-but can mitigate JIT spraying.
+This enables hardening for the BPF JIT compiler. Supported are eBPF
+JIT backends. Enabling hardening trades off performance, but can
+mitigate JIT spraying.
 Values :
 	0 - disable JIT hardening (default value)
 	1 - enable JIT hardening for unprivileged users only
@@ -57,11 +82,11 @@ Values :
 bpf_jit_kallsyms
 ----------------
 
-When Berkeley Packet Filter Just in Time compiler is enabled, then compiled
-images are unknown addresses to the kernel, meaning they neither show up in
-traces nor in /proc/kallsyms. This enables export of these addresses, which
-can be used for debugging/tracing. If bpf_jit_harden is enabled, this feature
-is disabled.
+When BPF JIT compiler is enabled, then compiled images are unknown
+addresses to the kernel, meaning they neither show up in traces nor
+in /proc/kallsyms. This enables export of these addresses, which can
+be used for debugging/tracing. If bpf_jit_harden is enabled, this
+feature is disabled.
 Values :
 	0 - disable JIT kallsyms export (default value)
 	1 - enable JIT kallsyms export for privileged users only
diff --git a/Documentation/tee.txt b/Documentation/tee.txt
index 718599357596..56ea85ffebf2 100644
--- a/Documentation/tee.txt
+++ b/Documentation/tee.txt
@@ -1,4 +1,7 @@
+=============
 TEE subsystem
+=============
+
 This document describes the TEE subsystem in Linux.
 
 A TEE (Trusted Execution Environment) is a trusted OS running in some
@@ -80,27 +83,27 @@ The GlobalPlatform TEE Client API [5] is implemented on top of the generic
 TEE API.
 
 Picture of the relationship between the different components in the
-OP-TEE architecture.
-
-    User space                  Kernel                   Secure world
-    ~~~~~~~~~~                  ~~~~~~                   ~~~~~~~~~~~~
- +--------+                                             +-------------+
- | Client |                                             | Trusted     |
- +--------+                                             | Application |
-    /\                                                  +-------------+
-    || +----------+                                           /\
-    || |tee-      |                                           ||
-    || |supplicant|                                           \/
-    || +----------+                                     +-------------+
-    \/      /\                                          | TEE Internal|
- +-------+  ||                                          | API         |
- + TEE   |  ||            +--------+--------+           +-------------+
- | Client|  ||            | TEE    | OP-TEE |           | OP-TEE      |
- | API   |  \/            | subsys | driver |           | Trusted OS  |
- +-------+----------------+----+-------+----+-----------+-------------+
- |      Generic TEE API        |       |     OP-TEE MSG               |
- |      IOCTL (TEE_IOC_*)      |       |     SMCCC (OPTEE_SMC_CALL_*) |
- +-----------------------------+       +------------------------------+
+OP-TEE architecture::
+
+      User space                  Kernel                   Secure world
+      ~~~~~~~~~~                  ~~~~~~                   ~~~~~~~~~~~~
+   +--------+                                             +-------------+
+   | Client |                                             | Trusted     |
+   +--------+                                             | Application |
+      /\                                                  +-------------+
+      || +----------+                                           /\
+      || |tee-      |                                           ||
+      || |supplicant|                                           \/
+      || +----------+                                     +-------------+
+      \/      /\                                          | TEE Internal|
+   +-------+  ||                                          | API         |
+   + TEE   |  ||            +--------+--------+           +-------------+
+   | Client|  ||            | TEE    | OP-TEE |           | OP-TEE      |
+   | API   |  \/            | subsys | driver |           | Trusted OS  |
+   +-------+----------------+----+-------+----+-----------+-------------+
+   |      Generic TEE API        |       |     OP-TEE MSG               |
+   |      IOCTL (TEE_IOC_*)      |       |     SMCCC (OPTEE_SMC_CALL_*) |
+   +-----------------------------+       +------------------------------+
 
 RPC (Remote Procedure Call) are requests from secure world to kernel driver
 or tee-supplicant. An RPC is identified by a special range of SMCCC return
@@ -109,10 +112,16 @@ kernel are handled by the kernel driver. Other RPC messages will be forwarded to
 tee-supplicant without further involvement of the driver, except switching
 shared memory buffer representation.
 
-References:
+References
+==========
+
 [1] https://github.com/OP-TEE/optee_os
+
 [2] http://infocenter.arm.com/help/topic/com.arm.doc.den0028a/index.html
+
 [3] drivers/tee/optee/optee_smc.h
+
 [4] drivers/tee/optee/optee_msg.h
+
 [5] http://www.globalplatform.org/specificationsdevice.asp look for
     "TEE Client API Specification v1.0" and click download.
diff --git a/Documentation/this_cpu_ops.txt b/Documentation/this_cpu_ops.txt
index 2cbf71975381..5cb8b883ae83 100644
--- a/Documentation/this_cpu_ops.txt
+++ b/Documentation/this_cpu_ops.txt
@@ -1,5 +1,9 @@
+===================
 this_cpu operations
--------------------
+===================
+
+:Author: Christoph Lameter, August 4th, 2014
+:Author: Pranith Kumar, Aug 2nd, 2014
 
 this_cpu operations are a way of optimizing access to per cpu
 variables associated with the *currently* executing processor. This is
@@ -39,7 +43,7 @@ operations.
 
 The following this_cpu() operations with implied preemption protection
 are defined. These operations can be used without worrying about
-preemption and interrupts.
+preemption and interrupts::
 
 	this_cpu_read(pcp)
 	this_cpu_write(pcp, val)
@@ -67,14 +71,14 @@ to relocate a per cpu relative address to the proper per cpu area for
 the processor. So the relocation to the per cpu base is encoded in the
 instruction via a segment register prefix.
 
-For example:
+For example::
 
 	DEFINE_PER_CPU(int, x);
 	int z;
 
 	z = this_cpu_read(x);
 
-results in a single instruction
+results in a single instruction::
 
 	mov ax, gs:[x]
 
@@ -84,16 +88,16 @@ this_cpu_ops such sequence also required preempt disable/enable to
 prevent the kernel from moving the thread to a different processor
 while the calculation is performed.
 
-Consider the following this_cpu operation:
+Consider the following this_cpu operation::
 
 	this_cpu_inc(x)
 
-The above results in the following single instruction (no lock prefix!)
+The above results in the following single instruction (no lock prefix!)::
 
 	inc gs:[x]
 
 instead of the following operations required if there is no segment
-register:
+register::
 
 	int *y;
 	int cpu;
@@ -121,8 +125,10 @@ has to be paid for this optimization is the need to add up the per cpu
 counters when the value of a counter is needed.
 
 
-Special operations:
--------------------
+Special operations
+------------------
+
+::
 
 	y = this_cpu_ptr(&x)
 
@@ -153,11 +159,15 @@ Therefore the use of x or &x outside of the context of per cpu
 operations is invalid and will generally be treated like a NULL
 pointer dereference.
 
+::
+
 	DEFINE_PER_CPU(int, x);
 
 In the context of per cpu operations the above implies that x is a per
 cpu variable. Most this_cpu operations take a cpu variable.
 
+::
+
 	int __percpu *p = &x;
 
 &x and hence p is the *offset* of a per cpu variable. this_cpu_ptr()
@@ -168,7 +178,7 @@ strange.
 Operations on a field of a per cpu structure
 --------------------------------------------
 
-Let's say we have a percpu structure
+Let's say we have a percpu structure::
 
 	struct s {
 		int n,m;
@@ -177,14 +187,14 @@ Let's say we have a percpu structure
 	DEFINE_PER_CPU(struct s, p);
 
 
-Operations on these fields are straightforward
+Operations on these fields are straightforward::
 
 	this_cpu_inc(p.m)
 
 	z = this_cpu_cmpxchg(p.m, 0, 1);
 
 
-If we have an offset to struct s:
+If we have an offset to struct s::
 
 	struct s __percpu *ps = &p;
 
@@ -194,7 +204,7 @@ If we have an offset to struct s:
 
 
 The calculation of the pointer may require the use of this_cpu_ptr()
-if we do not make use of this_cpu ops later to manipulate fields:
+if we do not make use of this_cpu ops later to manipulate fields::
 
 	struct s *pp;
 
@@ -206,7 +216,7 @@ if we do not make use of this_cpu ops later to manipulate fields:
 
 
 Variants of this_cpu ops
--------------------------
+------------------------
 
 this_cpu ops are interrupt safe. Some architectures do not support
 these per cpu local operations. In that case the operation must be
@@ -222,7 +232,7 @@ preemption. If a per cpu variable is not used in an interrupt context
 and the scheduler cannot preempt, then they are safe. If any interrupts
 still occur while an operation is in progress and if the interrupt too
 modifies the variable, then RMW actions can not be guaranteed to be
-safe.
+safe::
 
 	__this_cpu_read(pcp)
 	__this_cpu_write(pcp, val)
@@ -279,7 +289,7 @@ unless absolutely necessary. Please consider using an IPI to wake up
 the remote CPU and perform the update to its per cpu area.
 
 To access per-cpu data structure remotely, typically the per_cpu_ptr()
-function is used:
+function is used::
 
 
 	DEFINE_PER_CPU(struct data, datap);
@@ -289,7 +299,7 @@ function is used:
 This makes it explicit that we are getting ready to access a percpu
 area remotely.
 
-You can also do the following to convert the datap offset to an address
+You can also do the following to convert the datap offset to an address::
 
 	struct data *p = this_cpu_ptr(&datap);
 
@@ -305,7 +315,7 @@ the following scenario that occurs because two per cpu variables
 share a cache-line but the relaxed synchronization is applied to
 only one process updating the cache-line.
 
-Consider the following example
+Consider the following example::
 
 
 	struct test {
@@ -327,6 +337,3 @@ mind that a remote write will evict the cache line from the processor
 that most likely will access it. If the processor wakes up and finds a
 missing local cache line of a per cpu area, its performance and hence
 the wake up times will be affected.
-
-Christoph Lameter, August 4th, 2014
-Pranith Kumar, Aug 2nd, 2014
diff --git a/Documentation/trace/ftrace.txt b/Documentation/trace/ftrace.txt
index fff8ff6d4893..d4601df6e72e 100644
--- a/Documentation/trace/ftrace.txt
+++ b/Documentation/trace/ftrace.txt
@@ -5,10 +5,11 @@ Copyright 2008 Red Hat Inc.
    Author:   Steven Rostedt <srostedt@redhat.com>
   License:   The GNU Free Documentation License, Version 1.2
                (dual licensed under the GPL v2)
-Reviewers:   Elias Oltmanns, Randy Dunlap, Andrew Morton,
-	     John Kacur, and David Teigland.
+Original Reviewers:   Elias Oltmanns, Randy Dunlap, Andrew Morton,
+		      John Kacur, and David Teigland.
 Written for: 2.6.28-rc2
 Updated for: 3.10
+Updated for: 4.13 - Copyright 2017 VMware Inc. Steven Rostedt
 
 Introduction
 ------------
@@ -26,9 +27,11 @@ a task is woken to the task is actually scheduled in.
 
 One of the most common uses of ftrace is the event tracing.
 Through out the kernel is hundreds of static event points that
-can be enabled via the debugfs file system to see what is
+can be enabled via the tracefs file system to see what is
 going on in certain parts of the kernel.
 
+See events.txt for more information.
+
 
 Implementation Details
 ----------------------
@@ -39,34 +42,47 @@ See ftrace-design.txt for details for arch porters and such.
 The File System
 ---------------
 
-Ftrace uses the debugfs file system to hold the control files as
+Ftrace uses the tracefs file system to hold the control files as
 well as the files to display output.
 
-When debugfs is configured into the kernel (which selecting any ftrace
-option will do) the directory /sys/kernel/debug will be created. To mount
+When tracefs is configured into the kernel (which selecting any ftrace
+option will do) the directory /sys/kernel/tracing will be created. To mount
 this directory, you can add to your /etc/fstab file:
 
- debugfs       /sys/kernel/debug          debugfs defaults        0       0
+ tracefs       /sys/kernel/tracing       tracefs defaults        0       0
 
 Or you can mount it at run time with:
 
- mount -t debugfs nodev /sys/kernel/debug
+ mount -t tracefs nodev /sys/kernel/tracing
 
 For quicker access to that directory you may want to make a soft link to
 it:
 
- ln -s /sys/kernel/debug /debug
+ ln -s /sys/kernel/tracing /tracing
+
+     *** NOTICE ***
+
+Before 4.1, all ftrace tracing control files were within the debugfs
+file system, which is typically located at /sys/kernel/debug/tracing.
+For backward compatibility, when mounting the debugfs file system,
+the tracefs file system will be automatically mounted at:
+
+ /sys/kernel/debug/tracing
 
-Any selected ftrace option will also create a directory called tracing
-within the debugfs. The rest of the document will assume that you are in
-the ftrace directory (cd /sys/kernel/debug/tracing) and will only concentrate
-on the files within that directory and not distract from the content with
-the extended "/sys/kernel/debug/tracing" path name.
+All files located in the tracefs file system will be located in that
+debugfs file system directory as well.
+
+     *** NOTICE ***
+
+Any selected ftrace option will also create the tracefs file system.
+The rest of the document will assume that you are in the ftrace directory
+(cd /sys/kernel/tracing) and will only concentrate on the files within that
+directory and not distract from the content with the extended
+"/sys/kernel/tracing" path name.
 
 That's it! (assuming that you have ftrace configured into your kernel)
 
-After mounting debugfs, you can see a directory called
-"tracing".  This directory contains the control and output files
+After mounting tracefs you will have access to the control and output files
 of ftrace. Here is a list of some of the key files:
 
 
@@ -92,10 +108,20 @@ of ftrace. Here is a list of some of the key files:
 	writing to the ring buffer, the tracing overhead may
 	still be occurring.
 
+	The kernel function tracing_off() can be used within the
+	kernel to disable writing to the ring buffer, which will
+	set this file to "0". User space can re-enable tracing by
+	echoing "1" into the file.
+
+	Note, the function and event trigger "traceoff" will also
+	set this file to zero and stop tracing. Which can also
+	be re-enabled by user space using this file.
+
   trace:
 
 	This file holds the output of the trace in a human
-	readable format (described below).
+	readable format (described below). Note, tracing is temporarily
+	disabled while this file is being read (opened).
 
   trace_pipe:
 
@@ -109,7 +135,8 @@ of ftrace. Here is a list of some of the key files:
 	will not be read again with a sequential read. The
 	"trace" file is static, and if the tracer is not
 	adding more data, it will display the same
-	information every time it is read.
+	information every time it is read. This file will not
+	disable tracing while being read.
 
   trace_options:
 
@@ -128,12 +155,14 @@ of ftrace. Here is a list of some of the key files:
   tracing_max_latency:
 
 	Some of the tracers record the max latency.
-	For example, the time interrupts are disabled.
-	This time is saved in this file. The max trace
-	will also be stored, and displayed by "trace".
-	A new max trace will only be recorded if the
-	latency is greater than the value in this
-	file. (in microseconds)
+	For example, the maximum time that interrupts are disabled.
+	The maximum time is saved in this file. The max trace will also be
+	stored,	and displayed by "trace". A new max trace will only be
+	recorded if the latency is greater than the value in this file
+	(in microseconds).
+
+	By echoing in a time into this file, no latency will be recorded
+	unless it is greater than the time in this file.
 
   tracing_thresh:
 
@@ -152,32 +181,34 @@ of ftrace. Here is a list of some of the key files:
 	that the kernel uses for allocation, usually 4 KB in size).
 	If the last page allocated has room for more bytes
 	than requested, the rest of the page will be used,
-	making the actual allocation bigger than requested.
+	making the actual allocation bigger than requested or shown.
 	( Note, the size may not be a multiple of the page size
 	  due to buffer management meta-data. )
 
+	Buffer sizes for individual CPUs may vary
+	(see "per_cpu/cpu0/buffer_size_kb" below), and if they do
+	this file will show "X".
+
   buffer_total_size_kb:
 
 	This displays the total combined size of all the trace buffers.
 
   free_buffer:
 
-	If a process is performing the tracing, and the ring buffer
-	should be shrunk "freed" when the process is finished, even
-	if it were to be killed by a signal, this file can be used
-	for that purpose. On close of this file, the ring buffer will
-	be resized to its minimum size. Having a process that is tracing
-	also open this file, when the process exits its file descriptor
-	for this file will be closed, and in doing so, the ring buffer
-	will be "freed".
+	If a process is performing tracing, and the ring buffer	should be
+	shrunk "freed" when the process is finished, even if it were to be
+	killed by a signal, this file can be used for that purpose. On close
+	of this file, the ring buffer will be resized to its minimum size.
+	Having a process that is tracing also open this file, when the process
+	exits its file descriptor for this file will be closed, and in doing so,
+	the ring buffer will be "freed".
 
 	It may also stop tracing if disable_on_free option is set.
 
   tracing_cpumask:
 
-	This is a mask that lets the user only trace
-	on specified CPUs. The format is a hex string
-	representing the CPUs.
+	This is a mask that lets the user only trace on specified CPUs.
+	The format is a hex string representing the CPUs.
 
   set_ftrace_filter:
 
@@ -190,6 +221,9 @@ of ftrace. Here is a list of some of the key files:
 	to be traced. Echoing names of functions into this file
 	will limit the trace to only those functions.
 
+	The functions listed in "available_filter_functions" are what
+	can be written into this file.
+
 	This interface also allows for commands to be used. See the
 	"Filter commands" section for more details.
 
@@ -202,7 +236,14 @@ of ftrace. Here is a list of some of the key files:
 
   set_ftrace_pid:
 
-	Have the function tracer only trace a single thread.
+	Have the function tracer only trace the threads whose PID are
+	listed in this file.
+
+	If the "function-fork" option is set, then when a task whose
+	PID is listed in this file forks, the child's PID will
+	automatically be added to this file, and the child will be
+	traced by the function tracer as well. This option will also
+	cause PIDs of tasks that exit to be removed from the file.
 
   set_event_pid:
 
@@ -217,17 +258,28 @@ of ftrace. Here is a list of some of the key files:
 
   set_graph_function:
 
-	Set a "trigger" function where tracing should start
-	with the function graph tracer (See the section
-	"dynamic ftrace" for more details).
+	Functions listed in this file will cause the function graph
+	tracer to only trace these functions and the functions that
+	they call. (See the section "dynamic ftrace" for more details).
+
+  set_graph_notrace:
+
+	Similar to set_graph_function, but will disable function graph
+	tracing when the function is hit until it exits the function.
+	This makes it possible to ignore tracing functions that are called
+	by a specific function.
 
   available_filter_functions:
 
-	This lists the functions that ftrace
-	has processed and can trace. These are the function
-	names that you can pass to "set_ftrace_filter" or
-	"set_ftrace_notrace". (See the section "dynamic ftrace"
-	below for more details.)
+	This lists the functions that ftrace has processed and can trace.
+	These are the function names that you can pass to
+	"set_ftrace_filter" or "set_ftrace_notrace".
+	(See the section "dynamic ftrace" below for more details.)
+
+  dyn_ftrace_total_info:
+
+	This file is for debugging purposes. The number of functions that
+	have been converted to nops and are available to be traced.
 
   enabled_functions:
 
@@ -250,12 +302,21 @@ of ftrace. Here is a list of some of the key files:
 	an 'I' will be displayed on the same line as the function that
 	can be overridden.
 
+	If the architecture supports it, it will also show what callback
+	is being directly called by the function. If the count is greater
+	than 1 it most likely will be ftrace_ops_list_func().
+
+	If the callback of the function jumps to a trampoline that is
+	specific to a the callback and not the standard trampoline,
+	its address will be printed as well as the function that the
+	trampoline calls.
+
   function_profile_enabled:
 
 	When set it will enable all functions with either the function
-	tracer, or if enabled, the function graph tracer. It will
+	tracer, or if configured, the function graph tracer. It will
 	keep a histogram of the number of functions that were called
-	and if run with the function graph tracer, it will also keep
+	and if the function graph tracer was configured, it will also keep
 	track of the time spent in those functions. The histogram
 	content can be displayed in the files:
 
@@ -283,12 +344,11 @@ of ftrace. Here is a list of some of the key files:
   printk_formats:
 
 	This is for tools that read the raw format files. If an event in
-	the ring buffer references a string (currently only trace_printk()
-	does this), only a pointer to the string is recorded into the buffer
-	and not the string itself. This prevents tools from knowing what
-	that string was. This file displays the string and address for
-	the string allowing tools to map the pointers to what the
-	strings were.
+	the ring buffer references a string, only a pointer to the string
+	is recorded into the buffer and not the string itself. This prevents
+	tools from knowing what that string was. This file displays the string
+	and address for	the string allowing tools to map the pointers to what
+	the strings were.
 
   saved_cmdlines:
 
@@ -298,6 +358,22 @@ of ftrace. Here is a list of some of the key files:
 	comms for events. If a pid for a comm is not listed, then
 	"<...>" is displayed in the output.
 
+	If the option "record-cmd" is set to "0", then comms of tasks
+	will not be saved during recording. By default, it is enabled.
+
+  saved_cmdlines_size:
+
+	By default, 128 comms are saved (see "saved_cmdlines" above). To
+	increase or decrease the amount of comms that are cached, echo
+	in a the number of comms to cache, into this file.
+
+  saved_tgids:
+
+	If the option "record-tgid" is set, on each scheduling context switch
+	the Task Group ID of a task is saved in a table mapping the PID of
+	the thread to its TGID. By default, the "record-tgid" option is
+	disabled.
+
   snapshot:
 
 	This displays the "snapshot" buffer and also lets the user
@@ -336,6 +412,9 @@ of ftrace. Here is a list of some of the key files:
 	  # cat trace_clock
 	  [local] global counter x86-tsc
 
+	  The clock with the square brackets around it is the one
+	  in effect.
+
 	  local: Default clock, but may not be in sync across CPUs
 
 	  global: This clock is in sync with all CPUs but may
@@ -448,6 +527,23 @@ of ftrace. Here is a list of some of the key files:
 
 	See events.txt for more information.
 
+  set_event:
+
+	By echoing in the event into this file, will enable that event.
+
+	See events.txt for more information.
+
+  available_events:
+
+	A list of events that can be enabled in tracing.
+
+	See events.txt for more information.
+
+  hwlat_detector:
+
+	Directory for the Hardware Latency Detector.
+	See "Hardware Latency Detector" section below.
+
   per_cpu:
 
 	This is a directory that contains the trace per_cpu information.
@@ -539,13 +635,25 @@ Here is the list of current tracers that may be configured.
 	to draw a graph of function calls similar to C code
 	source.
 
+  "blk"
+
+	The block tracer. The tracer used by the blktrace user
+	application.
+
+  "hwlat"
+
+	The Hardware Latency tracer is used to detect if the hardware
+	produces any latency. See "Hardware Latency Detector" section
+	below.
+
   "irqsoff"
 
 	Traces the areas that disable interrupts and saves
 	the trace with the longest max latency.
 	See tracing_max_latency. When a new max is recorded,
 	it replaces the old trace. It is best to view this
-	trace with the latency-format option enabled.
+	trace with the latency-format option enabled, which
+	happens automatically when the tracer is selected.
 
   "preemptoff"
 
@@ -571,6 +679,26 @@ Here is the list of current tracers that may be configured.
         RT tasks (as the current "wakeup" does). This is useful
         for those interested in wake up timings of RT tasks.
 
+  "wakeup_dl"
+
+	Traces and records the max latency that it takes for
+	a SCHED_DEADLINE task to be woken (as the "wakeup" and
+	"wakeup_rt" does).
+
+  "mmiotrace"
+
+	A special tracer that is used to trace binary module.
+	It will trace all the calls that a module makes to the
+	hardware. Everything it writes and reads from the I/O
+	as well.
+
+  "branch"
+
+	This tracer can be configured when tracing likely/unlikely
+	calls within the kernel. It will trace when a likely and
+	unlikely branch is hit and if it was correct in its prediction
+	of being correct.
+
   "nop"
 
 	This is the "trace nothing" tracer. To remove all
@@ -582,7 +710,7 @@ Examples of using the tracer
 ----------------------------
 
 Here are typical examples of using the tracers when controlling
-them only with the debugfs interface (without using any
+them only with the tracefs interface (without using any
 user-land utilities).
 
 Output format:
@@ -674,7 +802,7 @@ why a latency happened. Here is a typical trace.
 This shows that the current tracer is "irqsoff" tracing the time
 for which interrupts were disabled. It gives the trace version (which
 never changes) and the version of the kernel upon which this was executed on
-(3.10). Then it displays the max latency in microseconds (259 us). The number
+(3.8). Then it displays the max latency in microseconds (259 us). The number
 of trace entries displayed and the total number (both are four: #4/4).
 VP, KP, SP, and HP are always zero and are reserved for later use.
 #P is the number of online CPUs (#P:4).
@@ -709,6 +837,8 @@ explains which is which.
 	'.' otherwise.
 
   hardirq/softirq:
+	'Z' - NMI occurred inside a hardirq
+	'z' - NMI is running
 	'H' - hard irq occurred inside a softirq.
 	'h' - hard irq is running
 	's' - soft irq is running
@@ -757,24 +887,24 @@ nohex
 nobin
 noblock
 trace_printk
-nobranch
 annotate
 nouserstacktrace
 nosym-userobj
 noprintk-msg-only
 context-info
 nolatency-format
-sleep-time
-graph-time
 record-cmd
+norecord-tgid
 overwrite
 nodisable_on_free
 irq-info
 markers
 noevent-fork
 function-trace
+nofunction-fork
 nodisplay-graph
 nostacktrace
+nobranch
 
 To disable one of the options, echo in the option prepended with
 "no".
@@ -830,8 +960,6 @@ Here are the available options:
 
   trace_printk - Can disable trace_printk() from writing into the buffer.
 
-  branch - Enable branch tracing with the tracer.
-
   annotate - It is sometimes confusing when the CPU buffers are full
   	     and one CPU buffer had a lot of events recently, thus
 	     a shorter time frame, were another CPU may have only had
@@ -850,7 +978,8 @@ Here are the available options:
           <idle>-0     [001] .Ns3 21169.031485: sub_preempt_count <-_raw_spin_unlock
 
   userstacktrace - This option changes the trace. It records a
-		   stacktrace of the current userspace thread.
+		   stacktrace of the current user space thread after
+		   each trace event.
 
   sym-userobj - when user stacktrace are enabled, look up which
 		object the address belongs to, and print a
@@ -873,29 +1002,21 @@ x494] <- /root/a.out[+0x4a8] <- /lib/libc-2.7.so[+0x1e1a6]
   context-info - Show only the event data. Hides the comm, PID,
   	         timestamp, CPU, and other useful data.
 
-  latency-format - This option changes the trace. When
-                   it is enabled, the trace displays
-                   additional information about the
-                   latencies, as described in "Latency
-                   trace format".
-
-  sleep-time - When running function graph tracer, to include
-  	       the time a task schedules out in its function.
-	       When enabled, it will account time the task has been
-	       scheduled out as part of the function call.
-
-  graph-time - When running function profiler with function graph tracer,
-	       to include the time to call nested functions. When this is
-	       not set, the time reported for the function will only
-	       include the time the function itself executed for, not the
-	       time for functions that it called.
+  latency-format - This option changes the trace output. When it is enabled,
+		   the trace displays additional information about the
+		   latency, as described in "Latency trace format".
 
   record-cmd - When any event or tracer is enabled, a hook is enabled
-  	       in the sched_switch trace point to fill comm cache
+	       in the sched_switch trace point to fill comm cache
 	       with mapped pids and comms. But this may cause some
 	       overhead, and if you only care about pids, and not the
 	       name of the task, disabling this option can lower the
-	       impact of tracing.
+	       impact of tracing. See "saved_cmdlines".
+
+  record-tgid - When any event or tracer is enabled, a hook is enabled
+	        in the sched_switch trace point to fill the cache of
+		mapped Thread Group IDs (TGID) mapping to pids. See
+		"saved_tgids".
 
   overwrite - This controls what happens when the trace buffer is
               full. If "1" (default), the oldest events are
@@ -935,19 +1056,98 @@ x494] <- /root/a.out[+0x4a8] <- /lib/libc-2.7.so[+0x1e1a6]
 	    functions. This keeps the overhead of the tracer down
 	    when performing latency tests.
 
+  function-fork - When set, tasks with PIDs listed in set_ftrace_pid will
+		  have the PIDs of their children added to set_ftrace_pid
+		  when those tasks fork. Also, when tasks with PIDs in
+		  set_ftrace_pid exit, their PIDs will be removed from the
+		  file.
+
   display-graph - When set, the latency tracers (irqsoff, wakeup, etc) will
 	          use function graph tracing instead of function tracing.
 
-  stacktrace - This is one of the options that changes the trace
-	       itself. When a trace is recorded, so is the stack
-	       of functions. This allows for back traces of
-	       trace sites.
+  stacktrace - When set, a stack trace is recorded after any trace event
+	       is recorded.
+
+  branch - Enable branch tracing with the tracer. This enables branch
+	   tracer along with the currently set tracer. Enabling this
+	   with the "nop" tracer is the same as just enabling the
+	   "branch" tracer.
 
  Note: Some tracers have their own options. They only appear in this
        file when the tracer is active. They always appear in the
        options directory.
 
 
+Here are the per tracer options:
+
+Options for function tracer:
+
+  func_stack_trace - When set, a stack trace is recorded after every
+		     function that is recorded. NOTE! Limit the functions
+		     that are recorded before enabling this, with
+		     "set_ftrace_filter" otherwise the system performance
+		     will be critically degraded. Remember to disable
+		     this option before clearing the function filter.
+
+Options for function_graph tracer:
+
+ Since the function_graph tracer has a slightly different output
+ it has its own options to control what is displayed.
+
+  funcgraph-overrun - When set, the "overrun" of the graph stack is
+		      displayed after each function traced. The
+		      overrun, is when the stack depth of the calls
+		      is greater than what is reserved for each task.
+		      Each task has a fixed array of functions to
+		      trace in the call graph. If the depth of the
+		      calls exceeds that, the function is not traced.
+		      The overrun is the number of functions missed
+		      due to exceeding this array.
+
+  funcgraph-cpu - When set, the CPU number of the CPU where the trace
+		  occurred is displayed.
+
+  funcgraph-overhead - When set, if the function takes longer than
+		       A certain amount, then a delay marker is
+		       displayed. See "delay" above, under the
+		       header description.
+
+  funcgraph-proc - Unlike other tracers, the process' command line
+		   is not displayed by default, but instead only
+		   when a task is traced in and out during a context
+		   switch. Enabling this options has the command
+		   of each process displayed at every line.
+
+  funcgraph-duration - At the end of each function (the return)
+		       the duration of the amount of time in the
+		       function is displayed in microseconds.
+
+  funcgraph-abstime - When set, the timestamp is displayed at each
+		      line.
+
+  funcgraph-irqs - When disabled, functions that happen inside an
+		   interrupt will not be traced.
+
+  funcgraph-tail - When set, the return event will include the function
+		   that it represents. By default this is off, and
+		   only a closing curly bracket "}" is displayed for
+		   the return of a function.
+
+  sleep-time - When running function graph tracer, to include
+	       the time a task schedules out in its function.
+	       When enabled, it will account time the task has been
+	       scheduled out as part of the function call.
+
+  graph-time - When running function profiler with function graph tracer,
+	       to include the time to call nested functions. When this is
+	       not set, the time reported for the function will only
+	       include the time the function itself executed for, not the
+	       time for functions that it called.
+
+Options for blk tracer:
+
+  blk_classic - Shows a more minimalistic output.
+
 
 irqsoff
 -------
@@ -1711,6 +1911,85 @@ events.
   <idle>-0       2d..3    6us :      0:120:R ==> [002]  5882: 94:R sleep
 
 
+Hardware Latency Detector
+-------------------------
+
+The hardware latency detector is executed by enabling the "hwlat" tracer.
+
+NOTE, this tracer will affect the performance of the system as it will
+periodically make a CPU constantly busy with interrupts disabled.
+
+ # echo hwlat > current_tracer
+ # sleep 100
+ # cat trace
+# tracer: hwlat
+#
+#                              _-----=> irqs-off
+#                             / _----=> need-resched
+#                            | / _---=> hardirq/softirq
+#                            || / _--=> preempt-depth
+#                            ||| /     delay
+#           TASK-PID   CPU#  ||||    TIMESTAMP  FUNCTION
+#              | |       |   ||||       |         |
+           <...>-3638  [001] d... 19452.055471: #1     inner/outer(us):   12/14    ts:1499801089.066141940
+           <...>-3638  [003] d... 19454.071354: #2     inner/outer(us):   11/9     ts:1499801091.082164365
+           <...>-3638  [002] dn.. 19461.126852: #3     inner/outer(us):   12/9     ts:1499801098.138150062
+           <...>-3638  [001] d... 19488.340960: #4     inner/outer(us):    8/12    ts:1499801125.354139633
+           <...>-3638  [003] d... 19494.388553: #5     inner/outer(us):    8/12    ts:1499801131.402150961
+           <...>-3638  [003] d... 19501.283419: #6     inner/outer(us):    0/12    ts:1499801138.297435289 nmi-total:4 nmi-count:1
+
+
+The above output is somewhat the same in the header. All events will have
+interrupts disabled 'd'. Under the FUNCTION title there is:
+
+ #1 - This is the count of events recorded that were greater than the
+      tracing_threshold (See below).
+
+ inner/outer(us):   12/14
+
+      This shows two numbers as "inner latency" and "outer latency". The test
+      runs in a loop checking a timestamp twice. The latency detected within
+      the two timestamps is the "inner latency" and the latency detected
+      after the previous timestamp and the next timestamp in the loop is
+      the "outer latency".
+
+ ts:1499801089.066141940
+
+      The absolute timestamp that the event happened.
+
+ nmi-total:4 nmi-count:1
+
+      On architectures that support it, if an NMI comes in during the
+      test, the time spent in NMI is reported in "nmi-total" (in
+      microseconds).
+
+      All architectures that have NMIs will show the "nmi-count" if an
+      NMI comes in during the test.
+
+hwlat files:
+
+  tracing_threshold - This gets automatically set to "10" to represent 10
+		      microseconds. This is the threshold of latency that
+		      needs to be detected before the trace will be recorded.
+
+		      Note, when hwlat tracer is finished (another tracer is
+		      written into "current_tracer"), the original value for
+		      tracing_threshold is placed back into this file.
+
+  hwlat_detector/width - The length of time the test runs with interrupts
+			 disabled.
+
+  hwlat_detector/window - The length of time of the window which the test
+			  runs. That is, the test will run for "width"
+			  microseconds per "window" microseconds
+
+  tracing_cpumask - When the test is started. A kernel thread is created that
+		    runs the test. This thread will alternate between CPUs
+		    listed in the tracing_cpumask between each period
+		    (one "window"). To limit the test to specific CPUs
+		    set the mask in this file to only the CPUs that the test
+		    should run on.
+
 function
 --------
 
@@ -1821,15 +2100,15 @@ something like this simple program:
 #define STR(x) _STR(x)
 #define MAX_PATH 256
 
-const char *find_debugfs(void)
+const char *find_tracefs(void)
 {
-       static char debugfs[MAX_PATH+1];
-       static int debugfs_found;
+       static char tracefs[MAX_PATH+1];
+       static int tracefs_found;
        char type[100];
        FILE *fp;
 
-       if (debugfs_found)
-               return debugfs;
+       if (tracefs_found)
+               return tracefs;
 
        if ((fp = fopen("/proc/mounts","r")) == NULL) {
                perror("/proc/mounts");
@@ -1839,27 +2118,27 @@ const char *find_debugfs(void)
        while (fscanf(fp, "%*s %"
                      STR(MAX_PATH)
                      "s %99s %*s %*d %*d\n",
-                     debugfs, type) == 2) {
-               if (strcmp(type, "debugfs") == 0)
+                     tracefs, type) == 2) {
+               if (strcmp(type, "tracefs") == 0)
                        break;
        }
        fclose(fp);
 
-       if (strcmp(type, "debugfs") != 0) {
-               fprintf(stderr, "debugfs not mounted");
+       if (strcmp(type, "tracefs") != 0) {
+               fprintf(stderr, "tracefs not mounted");
                return NULL;
        }
 
-       strcat(debugfs, "/tracing/");
-       debugfs_found = 1;
+       strcat(tracefs, "/tracing/");
+       tracefs_found = 1;
 
-       return debugfs;
+       return tracefs;
 }
 
 const char *tracing_file(const char *file_name)
 {
        static char trace_file[MAX_PATH+1];
-       snprintf(trace_file, MAX_PATH, "%s/%s", find_debugfs(), file_name);
+       snprintf(trace_file, MAX_PATH, "%s/%s", find_tracefs(), file_name);
        return trace_file;
 }
 
@@ -1898,12 +2177,12 @@ Or this simple script!
 ------
 #!/bin/bash
 
-debugfs=`sed -ne 's/^debugfs \(.*\) debugfs.*/\1/p' /proc/mounts`
-echo nop > $debugfs/tracing/current_tracer
-echo 0 > $debugfs/tracing/tracing_on
-echo $$ > $debugfs/tracing/set_ftrace_pid
-echo function > $debugfs/tracing/current_tracer
-echo 1 > $debugfs/tracing/tracing_on
+tracefs=`sed -ne 's/^tracefs \(.*\) tracefs.*/\1/p' /proc/mounts`
+echo nop > $tracefs/tracing/current_tracer
+echo 0 > $tracefs/tracing/tracing_on
+echo $$ > $tracefs/tracing/set_ftrace_pid
+echo function > $tracefs/tracing/current_tracer
+echo 1 > $tracefs/tracing/tracing_on
 exec "$@"
 ------
 
@@ -2145,13 +2424,18 @@ include the -pg switch in the compiling of the kernel.)
 At compile time every C file object is run through the
 recordmcount program (located in the scripts directory). This
 program will parse the ELF headers in the C object to find all
-the locations in the .text section that call mcount. (Note, only
-white listed .text sections are processed, since processing other
-sections like .init.text may cause races due to those sections
-being freed unexpectedly).
-
-A new section called "__mcount_loc" is created that holds
-references to all the mcount call sites in the .text section.
+the locations in the .text section that call mcount. Starting
+with gcc verson 4.6, the -mfentry has been added for x86, which
+calls "__fentry__" instead of "mcount". Which is called before
+the creation of the stack frame.
+
+Note, not all sections are traced. They may be prevented by either
+a notrace, or blocked another way and all inline functions are not
+traced. Check the "available_filter_functions" file to see what functions
+can be traced.
+
+A section called "__mcount_loc" is created that holds
+references to all the mcount/fentry call sites in the .text section.
 The recordmcount program re-links this section back into the
 original object. The final linking stage of the kernel will add all these
 references into a single table.
@@ -2679,7 +2963,7 @@ in time without stopping tracing. Ftrace swaps the current
 buffer with a spare buffer, and tracing continues in the new
 current (=previous spare) buffer.
 
-The following debugfs files in "tracing" are related to this
+The following tracefs files in "tracing" are related to this
 feature:
 
   snapshot:
@@ -2752,7 +3036,7 @@ cat: snapshot: Device or resource busy
 
 Instances
 ---------
-In the debugfs tracing directory is a directory called "instances".
+In the tracefs tracing directory is a directory called "instances".
 This directory can have new directories created inside of it using
 mkdir, and removing directories with rmdir. The directory created
 with mkdir in this directory will already contain files and other
diff --git a/Documentation/translations/ko_KR/memory-barriers.txt b/Documentation/translations/ko_KR/memory-barriers.txt
index c6f4ead76ce7..38310dcd6620 100644
--- a/Documentation/translations/ko_KR/memory-barriers.txt
+++ b/Documentation/translations/ko_KR/memory-barriers.txt
@@ -523,11 +523,11 @@ CPU �게 기대할 수 있는 최소한� 보장사항 몇가지가 있습니
      즉, ACQUIRE 는 최소한� "취�" �작처럼, 그리고 RELEASE 는 최소한� "공개"
      처럼 �작한다는 �미입니다.
 
-atomic_ops.txt �서 설명�는 어토믹 오�레�션들 중�는 완전히 순서잡힌 것들과
-(배리어를 사용하지 않는) 완화� 순서� 것들 외� ACQUIRE 와 RELEASE 부류�
-것들� 존재합니다.  로드와 스토어를 모� 수행하는 조합� 어토믹 오�레�션�서,
-ACQUIRE 는 해당 오�레�션� 로드 부분�만 �용�고 RELEASE 는 해당
-오�레�션� 스토어 부분�만 �용�니다.
+core-api/atomic_ops.rst �서 설명�는 어토믹 오�레�션들 중�는 완전히
+순서잡힌 것들과 (배리어를 사용하지 않는) 완화� 순서� 것들 외� ACQUIRE 와
+RELEASE 부류� 것들� 존재합니다.  로드와 스토어를 모� 수행하는 조합� 어토믹
+오�레�션�서, ACQUIRE 는 해당 오�레�션� 로드 부분�만 �용�고 RELEASE 는
+해당 오�레�션� 스토어 부분�만 �용�니다.
 
 메모리 배리어들� � CPU 간, �는 CPU 와 디바�스 간� �호작용� 가능성� 있�
 때�만 필요합니다.  만약 어떤 코드� 그런 �호작용� 없� 것� 보장�다면, 해당
@@ -1848,7 +1848,7 @@ Mandatory 배리어들ì�€ SMP 시스템ì—�ì„œë�„ UP 시스템ì—�ì„œë�„ SMP 효ê³
      � 코드는 �체� 업��트� death 마�가 레�런스 카운터 �소 �작
      *전�* 보� 것� 보장합니다.
 
-     � 많� 정보를 위해선 Documentation/atomic_ops.txt 문서를 참고하세요.
+     � 많� 정보를 위해선 Documentation/core-api/atomic_ops.rst 문서를 참고하세요.
      어디서 �것들� 사용해야 할지 �금하다면 "어토믹 오�레�션" 서브섹션�
      참고하세요.
 
@@ -2550,7 +2550,7 @@ CPU ì—�서는 사용ë�˜ëŠ” 어토믹 ì�¸ìŠ¤íŠ¸ëŸ­ì…˜ ìž�ì²´ì—� 메모리 배리ì
 있는�, 그런 경우� � 특수 메모리 배리어 �구들� no-op � �어 실질�으로
 아무�� 하지 않습니다.
 
-� 많� 내용� 위해선 Documentation/atomic_ops.txt 를 참고하세요.
+� 많� 내용� 위해선 Documentation/core-api/atomic_ops.rst 를 참고하세요.
 
 
 디바�스 액세스
diff --git a/Documentation/unaligned-memory-access.txt b/Documentation/unaligned-memory-access.txt
index 3f76c0c37920..51b4ff031586 100644
--- a/Documentation/unaligned-memory-access.txt
+++ b/Documentation/unaligned-memory-access.txt
@@ -1,6 +1,15 @@
+=========================
 UNALIGNED MEMORY ACCESSES
 =========================
 
+:Author: Daniel Drake <dsd@gentoo.org>,
+:Author: Johannes Berg <johannes@sipsolutions.net>
+
+:With help from: Alan Cox, Avuton Olrich, Heikki Orsila, Jan Engelhardt,
+  Kyle McMartin, Kyle Moffett, Randy Dunlap, Robert Hancock, Uli Kunitz,
+  Vadim Lobanov
+
+
 Linux runs on a wide variety of architectures which have varying behaviour
 when it comes to memory access. This document presents some details about
 unaligned accesses, why you need to write code that doesn't cause them,
@@ -73,7 +82,7 @@ memory addresses of certain variables, etc.
 
 Fortunately things are not too complex, as in most cases, the compiler
 ensures that things will work for you. For example, take the following
-structure:
+structure::
 
 	struct foo {
 		u16 field1;
@@ -106,7 +115,7 @@ On a related topic, with the above considerations in mind you may observe
 that you could reorder the fields in the structure in order to place fields
 where padding would otherwise be inserted, and hence reduce the overall
 resident memory size of structure instances. The optimal layout of the
-above example is:
+above example is::
 
 	struct foo {
 		u32 field2;
@@ -139,21 +148,21 @@ Code that causes unaligned access
 With the above in mind, let's move onto a real life example of a function
 that can cause an unaligned memory access. The following function taken
 from include/linux/etherdevice.h is an optimized routine to compare two
-ethernet MAC addresses for equality.
+ethernet MAC addresses for equality::
 
-bool ether_addr_equal(const u8 *addr1, const u8 *addr2)
-{
-#ifdef CONFIG_HAVE_EFFICIENT_UNALIGNED_ACCESS
+  bool ether_addr_equal(const u8 *addr1, const u8 *addr2)
+  {
+  #ifdef CONFIG_HAVE_EFFICIENT_UNALIGNED_ACCESS
 	u32 fold = ((*(const u32 *)addr1) ^ (*(const u32 *)addr2)) |
 		   ((*(const u16 *)(addr1 + 4)) ^ (*(const u16 *)(addr2 + 4)));
 
 	return fold == 0;
-#else
+  #else
 	const u16 *a = (const u16 *)addr1;
 	const u16 *b = (const u16 *)addr2;
 	return ((a[0] ^ b[0]) | (a[1] ^ b[1]) | (a[2] ^ b[2])) == 0;
-#endif
-}
+  #endif
+  }
 
 In the above function, when the hardware has efficient unaligned access
 capability, there is no issue with this code.  But when the hardware isn't
@@ -171,7 +180,8 @@ as it is a decent optimization for the cases when you can ensure alignment,
 which is true almost all of the time in ethernet networking context.
 
 
-Here is another example of some code that could cause unaligned accesses:
+Here is another example of some code that could cause unaligned accesses::
+
 	void myfunc(u8 *data, u32 value)
 	{
 		[...]
@@ -184,6 +194,7 @@ to an address that is not evenly divisible by 4.
 
 In summary, the 2 main scenarios where you may run into unaligned access
 problems involve:
+
  1. Casting variables to types of different lengths
  2. Pointer arithmetic followed by access to at least 2 bytes of data
 
@@ -195,7 +206,7 @@ The easiest way to avoid unaligned access is to use the get_unaligned() and
 put_unaligned() macros provided by the <asm/unaligned.h> header file.
 
 Going back to an earlier example of code that potentially causes unaligned
-access:
+access::
 
 	void myfunc(u8 *data, u32 value)
 	{
@@ -204,7 +215,7 @@ access:
 		[...]
 	}
 
-To avoid the unaligned memory access, you would rewrite it as follows:
+To avoid the unaligned memory access, you would rewrite it as follows::
 
 	void myfunc(u8 *data, u32 value)
 	{
@@ -215,7 +226,7 @@ To avoid the unaligned memory access, you would rewrite it as follows:
 	}
 
 The get_unaligned() macro works similarly. Assuming 'data' is a pointer to
-memory and you wish to avoid unaligned access, its usage is as follows:
+memory and you wish to avoid unaligned access, its usage is as follows::
 
 	u32 value = get_unaligned((u32 *) data);
 
@@ -245,18 +256,10 @@ For some ethernet hardware that cannot DMA to unaligned addresses like
 4*n+2 or non-ethernet hardware, this can be a problem, and it is then
 required to copy the incoming frame into an aligned buffer. Because this is
 unnecessary on architectures that can do unaligned accesses, the code can be
-made dependent on CONFIG_HAVE_EFFICIENT_UNALIGNED_ACCESS like so:
-
-#ifdef CONFIG_HAVE_EFFICIENT_UNALIGNED_ACCESS
-	skb = original skb
-#else
-	skb = copy skb
-#endif
-
---
-Authors: Daniel Drake <dsd@gentoo.org>,
-         Johannes Berg <johannes@sipsolutions.net>
-With help from: Alan Cox, Avuton Olrich, Heikki Orsila, Jan Engelhardt,
-Kyle McMartin, Kyle Moffett, Randy Dunlap, Robert Hancock, Uli Kunitz,
-Vadim Lobanov
+made dependent on CONFIG_HAVE_EFFICIENT_UNALIGNED_ACCESS like so::
 
+	#ifdef CONFIG_HAVE_EFFICIENT_UNALIGNED_ACCESS
+		skb = original skb
+	#else
+		skb = copy skb
+	#endif
diff --git a/Documentation/vfio-mediated-device.txt b/Documentation/vfio-mediated-device.txt
index e5e57b40f8af..1b3950346532 100644
--- a/Documentation/vfio-mediated-device.txt
+++ b/Documentation/vfio-mediated-device.txt
@@ -1,14 +1,17 @@
-/*
- * VFIO Mediated devices
- *
- * Copyright (c) 2016, NVIDIA CORPORATION. All rights reserved.
- *     Author: Neo Jia <cjia@nvidia.com>
- *             Kirti Wankhede <kwankhede@nvidia.com>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- */
+.. include:: <isonum.txt>
+
+=====================
+VFIO Mediated devices
+=====================
+
+:Copyright: |copy| 2016, NVIDIA CORPORATION. All rights reserved.
+:Author: Neo Jia <cjia@nvidia.com>
+:Author: Kirti Wankhede <kwankhede@nvidia.com>
+
+This program is free software; you can redistribute it and/or modify
+it under the terms of the GNU General Public License version 2 as
+published by the Free Software Foundation.
+
 
 Virtual Function I/O (VFIO) Mediated devices[1]
 ===============================================
@@ -42,7 +45,7 @@ removes it from a VFIO group.
 
 The following high-level block diagram shows the main components and interfaces
 in the VFIO mediated driver framework. The diagram shows NVIDIA, Intel, and IBM
-devices as examples, as these devices are the first devices to use this module.
+devices as examples, as these devices are the first devices to use this module::
 
      +---------------+
      |               |
@@ -91,7 +94,7 @@ Registration Interface for a Mediated Bus Driver
 ------------------------------------------------
 
 The registration interface for a mediated bus driver provides the following
-structure to represent a mediated device's driver:
+structure to represent a mediated device's driver::
 
      /*
       * struct mdev_driver [2] - Mediated device's driver
@@ -110,14 +113,14 @@ structure to represent a mediated device's driver:
 A mediated bus driver for mdev should use this structure in the function calls
 to register and unregister itself with the core driver:
 
-* Register:
+* Register::
 
-  extern int  mdev_register_driver(struct mdev_driver *drv,
+    extern int  mdev_register_driver(struct mdev_driver *drv,
 				   struct module *owner);
 
-* Unregister:
+* Unregister::
 
-  extern void mdev_unregister_driver(struct mdev_driver *drv);
+    extern void mdev_unregister_driver(struct mdev_driver *drv);
 
 The mediated bus driver is responsible for adding mediated devices to the VFIO
 group when devices are bound to the driver and removing mediated devices from
@@ -152,15 +155,15 @@ The callbacks in the mdev_parent_ops structure are as follows:
 * mmap: mmap emulation callback
 
 A driver should use the mdev_parent_ops structure in the function call to
-register itself with the mdev core driver:
+register itself with the mdev core driver::
 
-extern int  mdev_register_device(struct device *dev,
-                                 const struct mdev_parent_ops *ops);
+	extern int  mdev_register_device(struct device *dev,
+	                                 const struct mdev_parent_ops *ops);
 
 However, the mdev_parent_ops structure is not required in the function call
-that a driver should use to unregister itself with the mdev core driver:
+that a driver should use to unregister itself with the mdev core driver::
 
-extern void mdev_unregister_device(struct device *dev);
+	extern void mdev_unregister_device(struct device *dev);
 
 
 Mediated Device Management Interface Through sysfs
@@ -183,30 +186,32 @@ with the mdev core driver.
 Directories and files under the sysfs for Each Physical Device
 --------------------------------------------------------------
 
-|- [parent physical device]
-|--- Vendor-specific-attributes [optional]
-|--- [mdev_supported_types]
-|     |--- [<type-id>]
-|     |   |--- create
-|     |   |--- name
-|     |   |--- available_instances
-|     |   |--- device_api
-|     |   |--- description
-|     |   |--- [devices]
-|     |--- [<type-id>]
-|     |   |--- create
-|     |   |--- name
-|     |   |--- available_instances
-|     |   |--- device_api
-|     |   |--- description
-|     |   |--- [devices]
-|     |--- [<type-id>]
-|          |--- create
-|          |--- name
-|          |--- available_instances
-|          |--- device_api
-|          |--- description
-|          |--- [devices]
+::
+
+  |- [parent physical device]
+  |--- Vendor-specific-attributes [optional]
+  |--- [mdev_supported_types]
+  |     |--- [<type-id>]
+  |     |   |--- create
+  |     |   |--- name
+  |     |   |--- available_instances
+  |     |   |--- device_api
+  |     |   |--- description
+  |     |   |--- [devices]
+  |     |--- [<type-id>]
+  |     |   |--- create
+  |     |   |--- name
+  |     |   |--- available_instances
+  |     |   |--- device_api
+  |     |   |--- description
+  |     |   |--- [devices]
+  |     |--- [<type-id>]
+  |          |--- create
+  |          |--- name
+  |          |--- available_instances
+  |          |--- device_api
+  |          |--- description
+  |          |--- [devices]
 
 * [mdev_supported_types]
 
@@ -219,12 +224,12 @@ Directories and files under the sysfs for Each Physical Device
 
   The [<type-id>] name is created by adding the device driver string as a prefix
   to the string provided by the vendor driver. This format of this name is as
-  follows:
+  follows::
 
 	sprintf(buf, "%s-%s", dev_driver_string(parent->dev), group->name);
 
   (or using mdev_parent_dev(mdev) to arrive at the parent device outside
-   of the core mdev code)
+  of the core mdev code)
 
 * device_api
 
@@ -239,7 +244,7 @@ Directories and files under the sysfs for Each Physical Device
 * [device]
 
   This directory contains links to the devices of type <type-id> that have been
-created.
+  created.
 
 * name
 
@@ -253,21 +258,25 @@ created.
 Directories and Files Under the sysfs for Each mdev Device
 ----------------------------------------------------------
 
-|- [parent phy device]
-|--- [$MDEV_UUID]
+::
+
+  |- [parent phy device]
+  |--- [$MDEV_UUID]
          |--- remove
          |--- mdev_type {link to its type}
          |--- vendor-specific-attributes [optional]
 
 * remove (write only)
+
 Writing '1' to the 'remove' file destroys the mdev device. The vendor driver can
 fail the remove() callback if that device is active and the vendor driver
 doesn't support hot unplug.
 
-Example:
+Example::
+
 	# echo 1 > /sys/bus/mdev/devices/$mdev_UUID/remove
 
-Mediated device Hot plug:
+Mediated device Hot plug
 ------------------------
 
 Mediated devices can be created and assigned at runtime. The procedure to hot
@@ -277,13 +286,13 @@ Translation APIs for Mediated Devices
 =====================================
 
 The following APIs are provided for translating user pfn to host pfn in a VFIO
-driver:
+driver::
 
-extern int vfio_pin_pages(struct device *dev, unsigned long *user_pfn,
-                          int npage, int prot, unsigned long *phys_pfn);
+	extern int vfio_pin_pages(struct device *dev, unsigned long *user_pfn,
+				  int npage, int prot, unsigned long *phys_pfn);
 
-extern int vfio_unpin_pages(struct device *dev, unsigned long *user_pfn,
-                            int npage);
+	extern int vfio_unpin_pages(struct device *dev, unsigned long *user_pfn,
+				    int npage);
 
 These functions call back into the back-end IOMMU module by using the pin_pages
 and unpin_pages callbacks of the struct vfio_iommu_driver_ops[4]. Currently
@@ -304,81 +313,80 @@ card.
 
    This step creates a dummy device, /sys/devices/virtual/mtty/mtty/
 
-   Files in this device directory in sysfs are similar to the following:
-
-   # tree /sys/devices/virtual/mtty/mtty/
-      /sys/devices/virtual/mtty/mtty/
-      |-- mdev_supported_types
-      |   |-- mtty-1
-      |   |   |-- available_instances
-      |   |   |-- create
-      |   |   |-- device_api
-      |   |   |-- devices
-      |   |   `-- name
-      |   `-- mtty-2
-      |       |-- available_instances
-      |       |-- create
-      |       |-- device_api
-      |       |-- devices
-      |       `-- name
-      |-- mtty_dev
-      |   `-- sample_mtty_dev
-      |-- power
-      |   |-- autosuspend_delay_ms
-      |   |-- control
-      |   |-- runtime_active_time
-      |   |-- runtime_status
-      |   `-- runtime_suspended_time
-      |-- subsystem -> ../../../../class/mtty
-      `-- uevent
+   Files in this device directory in sysfs are similar to the following::
+
+     # tree /sys/devices/virtual/mtty/mtty/
+        /sys/devices/virtual/mtty/mtty/
+        |-- mdev_supported_types
+        |   |-- mtty-1
+        |   |   |-- available_instances
+        |   |   |-- create
+        |   |   |-- device_api
+        |   |   |-- devices
+        |   |   `-- name
+        |   `-- mtty-2
+        |       |-- available_instances
+        |       |-- create
+        |       |-- device_api
+        |       |-- devices
+        |       `-- name
+        |-- mtty_dev
+        |   `-- sample_mtty_dev
+        |-- power
+        |   |-- autosuspend_delay_ms
+        |   |-- control
+        |   |-- runtime_active_time
+        |   |-- runtime_status
+        |   `-- runtime_suspended_time
+        |-- subsystem -> ../../../../class/mtty
+        `-- uevent
 
 2. Create a mediated device by using the dummy device that you created in the
-   previous step.
+   previous step::
 
-   # echo "83b8f4f2-509f-382f-3c1e-e6bfe0fa1001" >	\
+     # echo "83b8f4f2-509f-382f-3c1e-e6bfe0fa1001" >	\
               /sys/devices/virtual/mtty/mtty/mdev_supported_types/mtty-2/create
 
-3. Add parameters to qemu-kvm.
+3. Add parameters to qemu-kvm::
 
-   -device vfio-pci,\
-    sysfsdev=/sys/bus/mdev/devices/83b8f4f2-509f-382f-3c1e-e6bfe0fa1001
+     -device vfio-pci,\
+      sysfsdev=/sys/bus/mdev/devices/83b8f4f2-509f-382f-3c1e-e6bfe0fa1001
 
 4. Boot the VM.
 
    In the Linux guest VM, with no hardware on the host, the device appears
-   as  follows:
-
-   # lspci -s 00:05.0 -xxvv
-   00:05.0 Serial controller: Device 4348:3253 (rev 10) (prog-if 02 [16550])
-           Subsystem: Device 4348:3253
-           Physical Slot: 5
-           Control: I/O+ Mem- BusMaster- SpecCycle- MemWINV- VGASnoop- ParErr-
-   Stepping- SERR- FastB2B- DisINTx-
-           Status: Cap- 66MHz- UDF- FastB2B- ParErr- DEVSEL=medium >TAbort-
-   <TAbort- <MAbort- >SERR- <PERR- INTx-
-           Interrupt: pin A routed to IRQ 10
-           Region 0: I/O ports at c150 [size=8]
-           Region 1: I/O ports at c158 [size=8]
-           Kernel driver in use: serial
-   00: 48 43 53 32 01 00 00 02 10 02 00 07 00 00 00 00
-   10: 51 c1 00 00 59 c1 00 00 00 00 00 00 00 00 00 00
-   20: 00 00 00 00 00 00 00 00 00 00 00 00 48 43 53 32
-   30: 00 00 00 00 00 00 00 00 00 00 00 00 0a 01 00 00
-
-   In the Linux guest VM, dmesg output for the device is as follows:
-
-   serial 0000:00:05.0: PCI INT A -> Link[LNKA] -> GSI 10 (level, high) -> IRQ
-10
-   0000:00:05.0: ttyS1 at I/O 0xc150 (irq = 10) is a 16550A
-   0000:00:05.0: ttyS2 at I/O 0xc158 (irq = 10) is a 16550A
-
-
-5. In the Linux guest VM, check the serial ports.
-
-   # setserial -g /dev/ttyS*
-   /dev/ttyS0, UART: 16550A, Port: 0x03f8, IRQ: 4
-   /dev/ttyS1, UART: 16550A, Port: 0xc150, IRQ: 10
-   /dev/ttyS2, UART: 16550A, Port: 0xc158, IRQ: 10
+   as  follows::
+
+     # lspci -s 00:05.0 -xxvv
+     00:05.0 Serial controller: Device 4348:3253 (rev 10) (prog-if 02 [16550])
+             Subsystem: Device 4348:3253
+             Physical Slot: 5
+             Control: I/O+ Mem- BusMaster- SpecCycle- MemWINV- VGASnoop- ParErr-
+     Stepping- SERR- FastB2B- DisINTx-
+             Status: Cap- 66MHz- UDF- FastB2B- ParErr- DEVSEL=medium >TAbort-
+     <TAbort- <MAbort- >SERR- <PERR- INTx-
+             Interrupt: pin A routed to IRQ 10
+             Region 0: I/O ports at c150 [size=8]
+             Region 1: I/O ports at c158 [size=8]
+             Kernel driver in use: serial
+     00: 48 43 53 32 01 00 00 02 10 02 00 07 00 00 00 00
+     10: 51 c1 00 00 59 c1 00 00 00 00 00 00 00 00 00 00
+     20: 00 00 00 00 00 00 00 00 00 00 00 00 48 43 53 32
+     30: 00 00 00 00 00 00 00 00 00 00 00 00 0a 01 00 00
+
+     In the Linux guest VM, dmesg output for the device is as follows:
+
+     serial 0000:00:05.0: PCI INT A -> Link[LNKA] -> GSI 10 (level, high) -> IRQ 10
+     0000:00:05.0: ttyS1 at I/O 0xc150 (irq = 10) is a 16550A
+     0000:00:05.0: ttyS2 at I/O 0xc158 (irq = 10) is a 16550A
+
+
+5. In the Linux guest VM, check the serial ports::
+
+     # setserial -g /dev/ttyS*
+     /dev/ttyS0, UART: 16550A, Port: 0x03f8, IRQ: 4
+     /dev/ttyS1, UART: 16550A, Port: 0xc150, IRQ: 10
+     /dev/ttyS2, UART: 16550A, Port: 0xc158, IRQ: 10
 
 6. Using minicom or any terminal emulation program, open port /dev/ttyS1 or
    /dev/ttyS2 with hardware flow control disabled.
@@ -388,14 +396,14 @@ card.
 
    Data is loop backed from hosts mtty driver.
 
-8. Destroy the mediated device that you created.
+8. Destroy the mediated device that you created::
 
-   # echo 1 > /sys/bus/mdev/devices/83b8f4f2-509f-382f-3c1e-e6bfe0fa1001/remove
+     # echo 1 > /sys/bus/mdev/devices/83b8f4f2-509f-382f-3c1e-e6bfe0fa1001/remove
 
 References
 ==========
 
-[1] See Documentation/vfio.txt for more information on VFIO.
-[2] struct mdev_driver in include/linux/mdev.h
-[3] struct mdev_parent_ops in include/linux/mdev.h
-[4] struct vfio_iommu_driver_ops in include/linux/vfio.h
+1. See Documentation/vfio.txt for more information on VFIO.
+2. struct mdev_driver in include/linux/mdev.h
+3. struct mdev_parent_ops in include/linux/mdev.h
+4. struct vfio_iommu_driver_ops in include/linux/vfio.h
diff --git a/Documentation/vfio.txt b/Documentation/vfio.txt
index 1dd3fddfd3a1..ef6a5111eaa1 100644
--- a/Documentation/vfio.txt
+++ b/Documentation/vfio.txt
@@ -1,5 +1,7 @@
-VFIO - "Virtual Function I/O"[1]
--------------------------------------------------------------------------------
+==================================
+VFIO - "Virtual Function I/O" [1]_
+==================================
+
 Many modern system now provide DMA and interrupt remapping facilities
 to help ensure I/O devices behave within the boundaries they've been
 allotted.  This includes x86 hardware with AMD-Vi and Intel VT-d,
@@ -7,14 +9,14 @@ POWER systems with Partitionable Endpoints (PEs) and embedded PowerPC
 systems such as Freescale PAMU.  The VFIO driver is an IOMMU/device
 agnostic framework for exposing direct device access to userspace, in
 a secure, IOMMU protected environment.  In other words, this allows
-safe[2], non-privileged, userspace drivers.
+safe [2]_, non-privileged, userspace drivers.
 
 Why do we want that?  Virtual machines often make use of direct device
 access ("device assignment") when configured for the highest possible
 I/O performance.  From a device and host perspective, this simply
 turns the VM into a userspace driver, with the benefits of
 significantly reduced latency, higher bandwidth, and direct use of
-bare-metal device drivers[3].
+bare-metal device drivers [3]_.
 
 Some applications, particularly in the high performance computing
 field, also benefit from low-overhead, direct device access from
@@ -31,7 +33,7 @@ KVM PCI specific device assignment code as well as provide a more
 secure, more featureful userspace driver environment than UIO.
 
 Groups, Devices, and IOMMUs
--------------------------------------------------------------------------------
+---------------------------
 
 Devices are the main target of any I/O driver.  Devices typically
 create a programming interface made up of I/O access, interrupts,
@@ -114,40 +116,40 @@ well as mechanisms for describing and registering interrupt
 notifications.
 
 VFIO Usage Example
--------------------------------------------------------------------------------
+------------------
 
-Assume user wants to access PCI device 0000:06:0d.0
+Assume user wants to access PCI device 0000:06:0d.0::
 
-$ readlink /sys/bus/pci/devices/0000:06:0d.0/iommu_group
-../../../../kernel/iommu_groups/26
+	$ readlink /sys/bus/pci/devices/0000:06:0d.0/iommu_group
+	../../../../kernel/iommu_groups/26
 
 This device is therefore in IOMMU group 26.  This device is on the
 pci bus, therefore the user will make use of vfio-pci to manage the
-group:
+group::
 
-# modprobe vfio-pci
+	# modprobe vfio-pci
 
 Binding this device to the vfio-pci driver creates the VFIO group
-character devices for this group:
+character devices for this group::
 
-$ lspci -n -s 0000:06:0d.0
-06:0d.0 0401: 1102:0002 (rev 08)
-# echo 0000:06:0d.0 > /sys/bus/pci/devices/0000:06:0d.0/driver/unbind
-# echo 1102 0002 > /sys/bus/pci/drivers/vfio-pci/new_id
+	$ lspci -n -s 0000:06:0d.0
+	06:0d.0 0401: 1102:0002 (rev 08)
+	# echo 0000:06:0d.0 > /sys/bus/pci/devices/0000:06:0d.0/driver/unbind
+	# echo 1102 0002 > /sys/bus/pci/drivers/vfio-pci/new_id
 
 Now we need to look at what other devices are in the group to free
-it for use by VFIO:
-
-$ ls -l /sys/bus/pci/devices/0000:06:0d.0/iommu_group/devices
-total 0
-lrwxrwxrwx. 1 root root 0 Apr 23 16:13 0000:00:1e.0 ->
-	../../../../devices/pci0000:00/0000:00:1e.0
-lrwxrwxrwx. 1 root root 0 Apr 23 16:13 0000:06:0d.0 ->
-	../../../../devices/pci0000:00/0000:00:1e.0/0000:06:0d.0
-lrwxrwxrwx. 1 root root 0 Apr 23 16:13 0000:06:0d.1 ->
-	../../../../devices/pci0000:00/0000:00:1e.0/0000:06:0d.1
-
-This device is behind a PCIe-to-PCI bridge[4], therefore we also
+it for use by VFIO::
+
+	$ ls -l /sys/bus/pci/devices/0000:06:0d.0/iommu_group/devices
+	total 0
+	lrwxrwxrwx. 1 root root 0 Apr 23 16:13 0000:00:1e.0 ->
+		../../../../devices/pci0000:00/0000:00:1e.0
+	lrwxrwxrwx. 1 root root 0 Apr 23 16:13 0000:06:0d.0 ->
+		../../../../devices/pci0000:00/0000:00:1e.0/0000:06:0d.0
+	lrwxrwxrwx. 1 root root 0 Apr 23 16:13 0000:06:0d.1 ->
+		../../../../devices/pci0000:00/0000:00:1e.0/0000:06:0d.1
+
+This device is behind a PCIe-to-PCI bridge [4]_, therefore we also
 need to add device 0000:06:0d.1 to the group following the same
 procedure as above.  Device 0000:00:1e.0 is a bridge that does
 not currently have a host driver, therefore it's not required to
@@ -157,12 +159,12 @@ support PCI bridges).
 The final step is to provide the user with access to the group if
 unprivileged operation is desired (note that /dev/vfio/vfio provides
 no capabilities on its own and is therefore expected to be set to
-mode 0666 by the system).
+mode 0666 by the system)::
 
-# chown user:user /dev/vfio/26
+	# chown user:user /dev/vfio/26
 
 The user now has full access to all the devices and the iommu for this
-group and can access them as follows:
+group and can access them as follows::
 
 	int container, group, device, i;
 	struct vfio_group_status group_status =
@@ -248,31 +250,31 @@ VFIO bus driver API
 VFIO bus drivers, such as vfio-pci make use of only a few interfaces
 into VFIO core.  When devices are bound and unbound to the driver,
 the driver should call vfio_add_group_dev() and vfio_del_group_dev()
-respectively:
+respectively::
 
-extern int vfio_add_group_dev(struct iommu_group *iommu_group,
-                              struct device *dev,
-                              const struct vfio_device_ops *ops,
-                              void *device_data);
+	extern int vfio_add_group_dev(struct iommu_group *iommu_group,
+	                              struct device *dev,
+				      const struct vfio_device_ops *ops,
+				      void *device_data);
 
-extern void *vfio_del_group_dev(struct device *dev);
+	extern void *vfio_del_group_dev(struct device *dev);
 
 vfio_add_group_dev() indicates to the core to begin tracking the
 specified iommu_group and register the specified dev as owned by
 a VFIO bus driver.  The driver provides an ops structure for callbacks
-similar to a file operations structure:
-
-struct vfio_device_ops {
-	int	(*open)(void *device_data);
-	void	(*release)(void *device_data);
-	ssize_t	(*read)(void *device_data, char __user *buf,
-			size_t count, loff_t *ppos);
-	ssize_t	(*write)(void *device_data, const char __user *buf,
-			 size_t size, loff_t *ppos);
-	long	(*ioctl)(void *device_data, unsigned int cmd,
-			 unsigned long arg);
-	int	(*mmap)(void *device_data, struct vm_area_struct *vma);
-};
+similar to a file operations structure::
+
+	struct vfio_device_ops {
+		int	(*open)(void *device_data);
+		void	(*release)(void *device_data);
+		ssize_t	(*read)(void *device_data, char __user *buf,
+				size_t count, loff_t *ppos);
+		ssize_t	(*write)(void *device_data, const char __user *buf,
+				 size_t size, loff_t *ppos);
+		long	(*ioctl)(void *device_data, unsigned int cmd,
+				 unsigned long arg);
+		int	(*mmap)(void *device_data, struct vm_area_struct *vma);
+	};
 
 Each function is passed the device_data that was originally registered
 in the vfio_add_group_dev() call above.  This allows the bus driver
@@ -285,50 +287,55 @@ own VFIO_DEVICE_GET_REGION_INFO ioctl.
 
 
 PPC64 sPAPR implementation note
--------------------------------------------------------------------------------
+-------------------------------
 
 This implementation has some specifics:
 
 1) On older systems (POWER7 with P5IOC2/IODA1) only one IOMMU group per
-container is supported as an IOMMU table is allocated at the boot time,
-one table per a IOMMU group which is a Partitionable Endpoint (PE)
-(PE is often a PCI domain but not always).
-Newer systems (POWER8 with IODA2) have improved hardware design which allows
-to remove this limitation and have multiple IOMMU groups per a VFIO container.
+   container is supported as an IOMMU table is allocated at the boot time,
+   one table per a IOMMU group which is a Partitionable Endpoint (PE)
+   (PE is often a PCI domain but not always).
+
+   Newer systems (POWER8 with IODA2) have improved hardware design which allows
+   to remove this limitation and have multiple IOMMU groups per a VFIO
+   container.
 
 2) The hardware supports so called DMA windows - the PCI address range
-within which DMA transfer is allowed, any attempt to access address space
-out of the window leads to the whole PE isolation.
+   within which DMA transfer is allowed, any attempt to access address space
+   out of the window leads to the whole PE isolation.
 
 3) PPC64 guests are paravirtualized but not fully emulated. There is an API
-to map/unmap pages for DMA, and it normally maps 1..32 pages per call and
-currently there is no way to reduce the number of calls. In order to make things
-faster, the map/unmap handling has been implemented in real mode which provides
-an excellent performance which has limitations such as inability to do
-locked pages accounting in real time.
+   to map/unmap pages for DMA, and it normally maps 1..32 pages per call and
+   currently there is no way to reduce the number of calls. In order to make
+   things faster, the map/unmap handling has been implemented in real mode
+   which provides an excellent performance which has limitations such as
+   inability to do locked pages accounting in real time.
 
 4) According to sPAPR specification, A Partitionable Endpoint (PE) is an I/O
-subtree that can be treated as a unit for the purposes of partitioning and
-error recovery. A PE may be a single or multi-function IOA (IO Adapter), a
-function of a multi-function IOA, or multiple IOAs (possibly including switch
-and bridge structures above the multiple IOAs). PPC64 guests detect PCI errors
-and recover from them via EEH RTAS services, which works on the basis of
-additional ioctl commands.
+   subtree that can be treated as a unit for the purposes of partitioning and
+   error recovery. A PE may be a single or multi-function IOA (IO Adapter), a
+   function of a multi-function IOA, or multiple IOAs (possibly including
+   switch and bridge structures above the multiple IOAs). PPC64 guests detect
+   PCI errors and recover from them via EEH RTAS services, which works on the
+   basis of additional ioctl commands.
 
-So 4 additional ioctls have been added:
+   So 4 additional ioctls have been added:
 
-	VFIO_IOMMU_SPAPR_TCE_GET_INFO - returns the size and the start
-		of the DMA window on the PCI bus.
+	VFIO_IOMMU_SPAPR_TCE_GET_INFO
+		returns the size and the start of the DMA window on the PCI bus.
 
-	VFIO_IOMMU_ENABLE - enables the container. The locked pages accounting
+	VFIO_IOMMU_ENABLE
+		enables the container. The locked pages accounting
 		is done at this point. This lets user first to know what
 		the DMA window is and adjust rlimit before doing any real job.
 
-	VFIO_IOMMU_DISABLE - disables the container.
+	VFIO_IOMMU_DISABLE
+		disables the container.
 
-	VFIO_EEH_PE_OP - provides an API for EEH setup, error detection and recovery.
+	VFIO_EEH_PE_OP
+		provides an API for EEH setup, error detection and recovery.
 
-The code flow from the example above should be slightly changed:
+   The code flow from the example above should be slightly changed::
 
 	struct vfio_eeh_pe_op pe_op = { .argsz = sizeof(pe_op), .flags = 0 };
 
@@ -442,73 +449,73 @@ The code flow from the example above should be slightly changed:
 	....
 
 5) There is v2 of SPAPR TCE IOMMU. It deprecates VFIO_IOMMU_ENABLE/
-VFIO_IOMMU_DISABLE and implements 2 new ioctls:
-VFIO_IOMMU_SPAPR_REGISTER_MEMORY and VFIO_IOMMU_SPAPR_UNREGISTER_MEMORY
-(which are unsupported in v1 IOMMU).
+   VFIO_IOMMU_DISABLE and implements 2 new ioctls:
+   VFIO_IOMMU_SPAPR_REGISTER_MEMORY and VFIO_IOMMU_SPAPR_UNREGISTER_MEMORY
+   (which are unsupported in v1 IOMMU).
 
-PPC64 paravirtualized guests generate a lot of map/unmap requests,
-and the handling of those includes pinning/unpinning pages and updating
-mm::locked_vm counter to make sure we do not exceed the rlimit.
-The v2 IOMMU splits accounting and pinning into separate operations:
+   PPC64 paravirtualized guests generate a lot of map/unmap requests,
+   and the handling of those includes pinning/unpinning pages and updating
+   mm::locked_vm counter to make sure we do not exceed the rlimit.
+   The v2 IOMMU splits accounting and pinning into separate operations:
 
-- VFIO_IOMMU_SPAPR_REGISTER_MEMORY/VFIO_IOMMU_SPAPR_UNREGISTER_MEMORY ioctls
-receive a user space address and size of the block to be pinned.
-Bisecting is not supported and VFIO_IOMMU_UNREGISTER_MEMORY is expected to
-be called with the exact address and size used for registering
-the memory block. The userspace is not expected to call these often.
-The ranges are stored in a linked list in a VFIO container.
+   - VFIO_IOMMU_SPAPR_REGISTER_MEMORY/VFIO_IOMMU_SPAPR_UNREGISTER_MEMORY ioctls
+     receive a user space address and size of the block to be pinned.
+     Bisecting is not supported and VFIO_IOMMU_UNREGISTER_MEMORY is expected to
+     be called with the exact address and size used for registering
+     the memory block. The userspace is not expected to call these often.
+     The ranges are stored in a linked list in a VFIO container.
 
-- VFIO_IOMMU_MAP_DMA/VFIO_IOMMU_UNMAP_DMA ioctls only update the actual
-IOMMU table and do not do pinning; instead these check that the userspace
-address is from pre-registered range.
+   - VFIO_IOMMU_MAP_DMA/VFIO_IOMMU_UNMAP_DMA ioctls only update the actual
+     IOMMU table and do not do pinning; instead these check that the userspace
+     address is from pre-registered range.
 
-This separation helps in optimizing DMA for guests.
+   This separation helps in optimizing DMA for guests.
 
 6) sPAPR specification allows guests to have an additional DMA window(s) on
-a PCI bus with a variable page size. Two ioctls have been added to support
-this: VFIO_IOMMU_SPAPR_TCE_CREATE and VFIO_IOMMU_SPAPR_TCE_REMOVE.
-The platform has to support the functionality or error will be returned to
-the userspace. The existing hardware supports up to 2 DMA windows, one is
-2GB long, uses 4K pages and called "default 32bit window"; the other can
-be as big as entire RAM, use different page size, it is optional - guests
-create those in run-time if the guest driver supports 64bit DMA.
-
-VFIO_IOMMU_SPAPR_TCE_CREATE receives a page shift, a DMA window size and
-a number of TCE table levels (if a TCE table is going to be big enough and
-the kernel may not be able to allocate enough of physically contiguous memory).
-It creates a new window in the available slot and returns the bus address where
-the new window starts. Due to hardware limitation, the user space cannot choose
-the location of DMA windows.
-
-VFIO_IOMMU_SPAPR_TCE_REMOVE receives the bus start address of the window
-and removes it.
+   a PCI bus with a variable page size. Two ioctls have been added to support
+   this: VFIO_IOMMU_SPAPR_TCE_CREATE and VFIO_IOMMU_SPAPR_TCE_REMOVE.
+   The platform has to support the functionality or error will be returned to
+   the userspace. The existing hardware supports up to 2 DMA windows, one is
+   2GB long, uses 4K pages and called "default 32bit window"; the other can
+   be as big as entire RAM, use different page size, it is optional - guests
+   create those in run-time if the guest driver supports 64bit DMA.
+
+   VFIO_IOMMU_SPAPR_TCE_CREATE receives a page shift, a DMA window size and
+   a number of TCE table levels (if a TCE table is going to be big enough and
+   the kernel may not be able to allocate enough of physically contiguous
+   memory). It creates a new window in the available slot and returns the bus
+   address where the new window starts. Due to hardware limitation, the user
+   space cannot choose the location of DMA windows.
+
+   VFIO_IOMMU_SPAPR_TCE_REMOVE receives the bus start address of the window
+   and removes it.
 
 -------------------------------------------------------------------------------
 
-[1] VFIO was originally an acronym for "Virtual Function I/O" in its
-initial implementation by Tom Lyon while as Cisco.  We've since
-outgrown the acronym, but it's catchy.
-
-[2] "safe" also depends upon a device being "well behaved".  It's
-possible for multi-function devices to have backdoors between
-functions and even for single function devices to have alternative
-access to things like PCI config space through MMIO registers.  To
-guard against the former we can include additional precautions in the
-IOMMU driver to group multi-function PCI devices together
-(iommu=group_mf).  The latter we can't prevent, but the IOMMU should
-still provide isolation.  For PCI, SR-IOV Virtual Functions are the
-best indicator of "well behaved", as these are designed for
-virtualization usage models.
-
-[3] As always there are trade-offs to virtual machine device
-assignment that are beyond the scope of VFIO.  It's expected that
-future IOMMU technologies will reduce some, but maybe not all, of
-these trade-offs.
-
-[4] In this case the device is below a PCI bridge, so transactions
-from either function of the device are indistinguishable to the iommu:
-
--[0000:00]-+-1e.0-[06]--+-0d.0
-                        \-0d.1
-
-00:1e.0 PCI bridge: Intel Corporation 82801 PCI Bridge (rev 90)
+.. [1] VFIO was originally an acronym for "Virtual Function I/O" in its
+   initial implementation by Tom Lyon while as Cisco.  We've since
+   outgrown the acronym, but it's catchy.
+
+.. [2] "safe" also depends upon a device being "well behaved".  It's
+   possible for multi-function devices to have backdoors between
+   functions and even for single function devices to have alternative
+   access to things like PCI config space through MMIO registers.  To
+   guard against the former we can include additional precautions in the
+   IOMMU driver to group multi-function PCI devices together
+   (iommu=group_mf).  The latter we can't prevent, but the IOMMU should
+   still provide isolation.  For PCI, SR-IOV Virtual Functions are the
+   best indicator of "well behaved", as these are designed for
+   virtualization usage models.
+
+.. [3] As always there are trade-offs to virtual machine device
+   assignment that are beyond the scope of VFIO.  It's expected that
+   future IOMMU technologies will reduce some, but maybe not all, of
+   these trade-offs.
+
+.. [4] In this case the device is below a PCI bridge, so transactions
+   from either function of the device are indistinguishable to the iommu::
+
+	-[0000:00]-+-1e.0-[06]--+-0d.0
+				\-0d.1
+
+	00:1e.0 PCI bridge: Intel Corporation 82801 PCI Bridge (rev 90)
diff --git a/Documentation/virtual/kvm/api.txt b/Documentation/virtual/kvm/api.txt
index 3a9831b72945..e63a35fafef0 100644
--- a/Documentation/virtual/kvm/api.txt
+++ b/Documentation/virtual/kvm/api.txt
@@ -4329,3 +4329,21 @@ Querying this capability returns a bitmap indicating the possible
 virtual SMT modes that can be set using KVM_CAP_PPC_SMT.  If bit N
 (counting from the right) is set, then a virtual SMT mode of 2^N is
 available.
+
+8.11 KVM_CAP_HYPERV_SYNIC2
+
+Architectures: x86
+
+This capability enables a newer version of Hyper-V Synthetic interrupt
+controller (SynIC).  The only difference with KVM_CAP_HYPERV_SYNIC is that KVM
+doesn't clear SynIC message and event flags pages when they are enabled by
+writing to the respective MSRs.
+
+8.12 KVM_CAP_HYPERV_VP_INDEX
+
+Architectures: x86
+
+This capability indicates that userspace can load HV_X64_MSR_VP_INDEX msr.  Its
+value is used to denote the target vcpu for a SynIC interrupt.  For
+compatibilty, KVM initializes this msr to KVM's internal vcpu index.  When this
+capability is absent, userspace can still query this msr's value.
diff --git a/Documentation/virtual/kvm/msr.txt b/Documentation/virtual/kvm/msr.txt
index 0a9ea515512a..1ebecc115dc6 100644
--- a/Documentation/virtual/kvm/msr.txt
+++ b/Documentation/virtual/kvm/msr.txt
@@ -166,10 +166,11 @@ MSR_KVM_SYSTEM_TIME: 0x12
 MSR_KVM_ASYNC_PF_EN: 0x4b564d02
 	data: Bits 63-6 hold 64-byte aligned physical address of a
 	64 byte memory area which must be in guest RAM and must be
-	zeroed. Bits 5-2 are reserved and should be zero. Bit 0 is 1
+	zeroed. Bits 5-3 are reserved and should be zero. Bit 0 is 1
 	when asynchronous page faults are enabled on the vcpu 0 when
 	disabled. Bit 1 is 1 if asynchronous page faults can be injected
-	when vcpu is in cpl == 0.
+	when vcpu is in cpl == 0. Bit 2 is 1 if asynchronous page faults
+	are delivered to L1 as #PF vmexits.
 
 	First 4 byte of 64 byte memory location will be written to by
 	the hypervisor at the time of asynchronous page fault (APF)
diff --git a/Documentation/xillybus.txt b/Documentation/xillybus.txt
index 1660145b9969..2446ee303c09 100644
--- a/Documentation/xillybus.txt
+++ b/Documentation/xillybus.txt
@@ -1,12 +1,11 @@
+==========================================
+Xillybus driver for generic FPGA interface
+==========================================
 
-               ==========================================
-               Xillybus driver for generic FPGA interface
-               ==========================================
+:Author: Eli Billauer, Xillybus Ltd. (http://xillybus.com)
+:Email:  eli.billauer@gmail.com or as advertised on Xillybus' site.
 
-Author: Eli Billauer, Xillybus Ltd. (http://xillybus.com)
-Email:  eli.billauer@gmail.com or as advertised on Xillybus' site.
-
-Contents:
+.. Contents:
 
  - Introduction
   -- Background
@@ -17,7 +16,7 @@ Contents:
   -- Synchronization
   -- Seekable pipes
 
-- Internals
+ - Internals
   -- Source code organization
   -- Pipe attributes
   -- Host never reads from the FPGA
@@ -29,7 +28,7 @@ Contents:
   -- The "nonempty" message (supporting poll)
 
 
-INTRODUCTION
+Introduction
 ============
 
 Background
@@ -105,7 +104,7 @@ driver is used to work out of the box with any Xillybus IP core.
 The data structure just mentioned should not be confused with PCI's
 configuration space or the Flattened Device Tree.
 
-USAGE
+Usage
 =====
 
 User interface
@@ -117,11 +116,11 @@ names of these files depend on the IP core that is loaded in the FPGA (see
 Probing below). To communicate with the FPGA, open the device file that
 corresponds to the hardware FIFO you want to send data or receive data from,
 and use plain write() or read() calls, just like with a regular pipe. In
-particular, it makes perfect sense to go:
+particular, it makes perfect sense to go::
 
-$ cat mydata > /dev/xillybus_thisfifo
+	$ cat mydata > /dev/xillybus_thisfifo
 
-$ cat /dev/xillybus_thatfifo > hisdata
+	$ cat /dev/xillybus_thatfifo > hisdata
 
 possibly pressing CTRL-C as some stage, even though the xillybus_* pipes have
 the capability to send an EOF (but may not use it).
@@ -178,7 +177,7 @@ the attached memory is done by seeking to the desired address, and calling
 read() or write() as required.
 
 
-INTERNALS
+Internals
 =========
 
 Source code organization
@@ -365,7 +364,7 @@ into that page. It can be shown that all pages requested from the kernel
 (except possibly for the last) are 100% utilized this way.
 
 The "nonempty" message (supporting poll)
----------------------------------------
+----------------------------------------
 
 In order to support the "poll" method (and hence select() ), there is a small
 catch regarding the FPGA to host direction: The FPGA may have filled a DMA
diff --git a/Documentation/xz.txt b/Documentation/xz.txt
index 2cf3e2608de3..b2220d03aa50 100644
--- a/Documentation/xz.txt
+++ b/Documentation/xz.txt
@@ -1,121 +1,127 @@
-
+============================
 XZ data compression in Linux
 ============================
 
 Introduction
+============
 
-    XZ is a general purpose data compression format with high compression
-    ratio and relatively fast decompression. The primary compression
-    algorithm (filter) is LZMA2. Additional filters can be used to improve
-    compression ratio even further. E.g. Branch/Call/Jump (BCJ) filters
-    improve compression ratio of executable data.
+XZ is a general purpose data compression format with high compression
+ratio and relatively fast decompression. The primary compression
+algorithm (filter) is LZMA2. Additional filters can be used to improve
+compression ratio even further. E.g. Branch/Call/Jump (BCJ) filters
+improve compression ratio of executable data.
 
-    The XZ decompressor in Linux is called XZ Embedded. It supports
-    the LZMA2 filter and optionally also BCJ filters. CRC32 is supported
-    for integrity checking. The home page of XZ Embedded is at
-    <http://tukaani.org/xz/embedded.html>, where you can find the
-    latest version and also information about using the code outside
-    the Linux kernel.
+The XZ decompressor in Linux is called XZ Embedded. It supports
+the LZMA2 filter and optionally also BCJ filters. CRC32 is supported
+for integrity checking. The home page of XZ Embedded is at
+<http://tukaani.org/xz/embedded.html>, where you can find the
+latest version and also information about using the code outside
+the Linux kernel.
 
-    For userspace, XZ Utils provide a zlib-like compression library
-    and a gzip-like command line tool. XZ Utils can be downloaded from
-    <http://tukaani.org/xz/>.
+For userspace, XZ Utils provide a zlib-like compression library
+and a gzip-like command line tool. XZ Utils can be downloaded from
+<http://tukaani.org/xz/>.
 
 XZ related components in the kernel
-
-    The xz_dec module provides XZ decompressor with single-call (buffer
-    to buffer) and multi-call (stateful) APIs. The usage of the xz_dec
-    module is documented in include/linux/xz.h.
-
-    The xz_dec_test module is for testing xz_dec. xz_dec_test is not
-    useful unless you are hacking the XZ decompressor. xz_dec_test
-    allocates a char device major dynamically to which one can write
-    .xz files from userspace. The decompressed output is thrown away.
-    Keep an eye on dmesg to see diagnostics printed by xz_dec_test.
-    See the xz_dec_test source code for the details.
-
-    For decompressing the kernel image, initramfs, and initrd, there
-    is a wrapper function in lib/decompress_unxz.c. Its API is the
-    same as in other decompress_*.c files, which is defined in
-    include/linux/decompress/generic.h.
-
-    scripts/xz_wrap.sh is a wrapper for the xz command line tool found
-    from XZ Utils. The wrapper sets compression options to values suitable
-    for compressing the kernel image.
-
-    For kernel makefiles, two commands are provided for use with
-    $(call if_needed). The kernel image should be compressed with
-    $(call if_needed,xzkern) which will use a BCJ filter and a big LZMA2
-    dictionary. It will also append a four-byte trailer containing the
-    uncompressed size of the file, which is needed by the boot code.
-    Other things should be compressed with $(call if_needed,xzmisc)
-    which will use no BCJ filter and 1 MiB LZMA2 dictionary.
+===================================
+
+The xz_dec module provides XZ decompressor with single-call (buffer
+to buffer) and multi-call (stateful) APIs. The usage of the xz_dec
+module is documented in include/linux/xz.h.
+
+The xz_dec_test module is for testing xz_dec. xz_dec_test is not
+useful unless you are hacking the XZ decompressor. xz_dec_test
+allocates a char device major dynamically to which one can write
+.xz files from userspace. The decompressed output is thrown away.
+Keep an eye on dmesg to see diagnostics printed by xz_dec_test.
+See the xz_dec_test source code for the details.
+
+For decompressing the kernel image, initramfs, and initrd, there
+is a wrapper function in lib/decompress_unxz.c. Its API is the
+same as in other decompress_*.c files, which is defined in
+include/linux/decompress/generic.h.
+
+scripts/xz_wrap.sh is a wrapper for the xz command line tool found
+from XZ Utils. The wrapper sets compression options to values suitable
+for compressing the kernel image.
+
+For kernel makefiles, two commands are provided for use with
+$(call if_needed). The kernel image should be compressed with
+$(call if_needed,xzkern) which will use a BCJ filter and a big LZMA2
+dictionary. It will also append a four-byte trailer containing the
+uncompressed size of the file, which is needed by the boot code.
+Other things should be compressed with $(call if_needed,xzmisc)
+which will use no BCJ filter and 1 MiB LZMA2 dictionary.
 
 Notes on compression options
+============================
 
-    Since the XZ Embedded supports only streams with no integrity check or
-    CRC32, make sure that you don't use some other integrity check type
-    when encoding files that are supposed to be decoded by the kernel. With
-    liblzma, you need to use either LZMA_CHECK_NONE or LZMA_CHECK_CRC32
-    when encoding. With the xz command line tool, use --check=none or
-    --check=crc32.
-
-    Using CRC32 is strongly recommended unless there is some other layer
-    which will verify the integrity of the uncompressed data anyway.
-    Double checking the integrity would probably be waste of CPU cycles.
-    Note that the headers will always have a CRC32 which will be validated
-    by the decoder; you can only change the integrity check type (or
-    disable it) for the actual uncompressed data.
-
-    In userspace, LZMA2 is typically used with dictionary sizes of several
-    megabytes. The decoder needs to have the dictionary in RAM, thus big
-    dictionaries cannot be used for files that are intended to be decoded
-    by the kernel. 1 MiB is probably the maximum reasonable dictionary
-    size for in-kernel use (maybe more is OK for initramfs). The presets
-    in XZ Utils may not be optimal when creating files for the kernel,
-    so don't hesitate to use custom settings. Example:
-
-        xz --check=crc32 --lzma2=dict=512KiB inputfile
-
-    An exception to above dictionary size limitation is when the decoder
-    is used in single-call mode. Decompressing the kernel itself is an
-    example of this situation. In single-call mode, the memory usage
-    doesn't depend on the dictionary size, and it is perfectly fine to
-    use a big dictionary: for maximum compression, the dictionary should
-    be at least as big as the uncompressed data itself.
+Since the XZ Embedded supports only streams with no integrity check or
+CRC32, make sure that you don't use some other integrity check type
+when encoding files that are supposed to be decoded by the kernel. With
+liblzma, you need to use either LZMA_CHECK_NONE or LZMA_CHECK_CRC32
+when encoding. With the xz command line tool, use --check=none or
+--check=crc32.
+
+Using CRC32 is strongly recommended unless there is some other layer
+which will verify the integrity of the uncompressed data anyway.
+Double checking the integrity would probably be waste of CPU cycles.
+Note that the headers will always have a CRC32 which will be validated
+by the decoder; you can only change the integrity check type (or
+disable it) for the actual uncompressed data.
+
+In userspace, LZMA2 is typically used with dictionary sizes of several
+megabytes. The decoder needs to have the dictionary in RAM, thus big
+dictionaries cannot be used for files that are intended to be decoded
+by the kernel. 1 MiB is probably the maximum reasonable dictionary
+size for in-kernel use (maybe more is OK for initramfs). The presets
+in XZ Utils may not be optimal when creating files for the kernel,
+so don't hesitate to use custom settings. Example::
+
+	xz --check=crc32 --lzma2=dict=512KiB inputfile
+
+An exception to above dictionary size limitation is when the decoder
+is used in single-call mode. Decompressing the kernel itself is an
+example of this situation. In single-call mode, the memory usage
+doesn't depend on the dictionary size, and it is perfectly fine to
+use a big dictionary: for maximum compression, the dictionary should
+be at least as big as the uncompressed data itself.
 
 Future plans
+============
 
-    Creating a limited XZ encoder may be considered if people think it is
-    useful. LZMA2 is slower to compress than e.g. Deflate or LZO even at
-    the fastest settings, so it isn't clear if LZMA2 encoder is wanted
-    into the kernel.
+Creating a limited XZ encoder may be considered if people think it is
+useful. LZMA2 is slower to compress than e.g. Deflate or LZO even at
+the fastest settings, so it isn't clear if LZMA2 encoder is wanted
+into the kernel.
 
-    Support for limited random-access reading is planned for the
-    decompression code. I don't know if it could have any use in the
-    kernel, but I know that it would be useful in some embedded projects
-    outside the Linux kernel.
+Support for limited random-access reading is planned for the
+decompression code. I don't know if it could have any use in the
+kernel, but I know that it would be useful in some embedded projects
+outside the Linux kernel.
 
 Conformance to the .xz file format specification
+================================================
 
-    There are a couple of corner cases where things have been simplified
-    at expense of detecting errors as early as possible. These should not
-    matter in practice all, since they don't cause security issues. But
-    it is good to know this if testing the code e.g. with the test files
-    from XZ Utils.
+There are a couple of corner cases where things have been simplified
+at expense of detecting errors as early as possible. These should not
+matter in practice all, since they don't cause security issues. But
+it is good to know this if testing the code e.g. with the test files
+from XZ Utils.
 
 Reporting bugs
+==============
 
-    Before reporting a bug, please check that it's not fixed already
-    at upstream. See <http://tukaani.org/xz/embedded.html> to get the
-    latest code.
+Before reporting a bug, please check that it's not fixed already
+at upstream. See <http://tukaani.org/xz/embedded.html> to get the
+latest code.
 
-    Report bugs to <lasse.collin@tukaani.org> or visit #tukaani on
-    Freenode and talk to Larhzu. I don't actively read LKML or other
-    kernel-related mailing lists, so if there's something I should know,
-    you should email to me personally or use IRC.
+Report bugs to <lasse.collin@tukaani.org> or visit #tukaani on
+Freenode and talk to Larhzu. I don't actively read LKML or other
+kernel-related mailing lists, so if there's something I should know,
+you should email to me personally or use IRC.
 
-    Don't bother Igor Pavlov with questions about the XZ implementation
-    in the kernel or about XZ Utils. While these two implementations
-    include essential code that is directly based on Igor Pavlov's code,
-    these implementations aren't maintained nor supported by him.
+Don't bother Igor Pavlov with questions about the XZ implementation
+in the kernel or about XZ Utils. While these two implementations
+include essential code that is directly based on Igor Pavlov's code,
+these implementations aren't maintained nor supported by him.
diff --git a/Documentation/zorro.txt b/Documentation/zorro.txt
index d530971beb00..664072b017e3 100644
--- a/Documentation/zorro.txt
+++ b/Documentation/zorro.txt
@@ -1,12 +1,13 @@
-		Writing Device Drivers for Zorro Devices
-		----------------------------------------
+========================================
+Writing Device Drivers for Zorro Devices
+========================================
 
-Written by Geert Uytterhoeven <geert@linux-m68k.org>
-Last revised: September 5, 2003
+:Author: Written by Geert Uytterhoeven <geert@linux-m68k.org>
+:Last revised: September 5, 2003
 
 
-1. Introduction
----------------
+Introduction
+------------
 
 The Zorro bus is the bus used in the Amiga family of computers. Thanks to
 AutoConfig(tm), it's 100% Plug-and-Play.
@@ -20,12 +21,12 @@ There are two types of Zorro buses, Zorro II and Zorro III:
     with Zorro II. The Zorro III address space lies outside the first 16 MB.
 
 
-2. Probing for Zorro Devices
-----------------------------
+Probing for Zorro Devices
+-------------------------
 
-Zorro devices are found by calling `zorro_find_device()', which returns a
-pointer to the `next' Zorro device with the specified Zorro ID. A probe loop
-for the board with Zorro ID `ZORRO_PROD_xxx' looks like:
+Zorro devices are found by calling ``zorro_find_device()``, which returns a
+pointer to the ``next`` Zorro device with the specified Zorro ID. A probe loop
+for the board with Zorro ID ``ZORRO_PROD_xxx`` looks like::
 
     struct zorro_dev *z = NULL;
 
@@ -35,8 +36,8 @@ for the board with Zorro ID `ZORRO_PROD_xxx' looks like:
 	...
     }
 
-`ZORRO_WILDCARD' acts as a wildcard and finds any Zorro device. If your driver
-supports different types of boards, you can use a construct like:
+``ZORRO_WILDCARD`` acts as a wildcard and finds any Zorro device. If your driver
+supports different types of boards, you can use a construct like::
 
     struct zorro_dev *z = NULL;
 
@@ -49,24 +50,24 @@ supports different types of boards, you can use a construct like:
     }
 
 
-3. Zorro Resources
-------------------
+Zorro Resources
+---------------
 
 Before you can access a Zorro device's registers, you have to make sure it's
 not yet in use. This is done using the I/O memory space resource management
-functions:
+functions::
 
     request_mem_region()
     release_mem_region()
 
-Shortcuts to claim the whole device's address space are provided as well:
+Shortcuts to claim the whole device's address space are provided as well::
 
     zorro_request_device
     zorro_release_device
 
 
-4. Accessing the Zorro Address Space
-------------------------------------
+Accessing the Zorro Address Space
+---------------------------------
 
 The address regions in the Zorro device resources are Zorro bus address
 regions. Due to the identity bus-physical address mapping on the Zorro bus,
@@ -78,26 +79,26 @@ The treatment of these regions depends on the type of Zorro space:
     explicitly using z_ioremap().
     
     Conversion from bus/physical Zorro II addresses to kernel virtual addresses
-    and vice versa is done using:
+    and vice versa is done using::
 
 	virt_addr = ZTWO_VADDR(bus_addr);
 	bus_addr = ZTWO_PADDR(virt_addr);
 
   - Zorro III address space must be mapped explicitly using z_ioremap() first
-    before it can be accessed:
+    before it can be accessed::
  
 	virt_addr = z_ioremap(bus_addr, size);
 	...
 	z_iounmap(virt_addr);
 
 
-5. References
--------------
+References
+----------
 
-linux/include/linux/zorro.h
-linux/include/uapi/linux/zorro.h
-linux/include/uapi/linux/zorro_ids.h
-linux/arch/m68k/include/asm/zorro.h
-linux/drivers/zorro
-/proc/bus/zorro
+#. linux/include/linux/zorro.h
+#. linux/include/uapi/linux/zorro.h
+#. linux/include/uapi/linux/zorro_ids.h
+#. linux/arch/m68k/include/asm/zorro.h
+#. linux/drivers/zorro
+#. /proc/bus/zorro
 
diff --git a/MAINTAINERS b/MAINTAINERS
index f6ec1be48609..1c3feffb1c1c 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -205,7 +205,6 @@ F:	include/net/9p/
 F:	include/uapi/linux/virtio_9p.h
 F:	include/trace/events/9p.h
 
-
 A8293 MEDIA DRIVER
 M:	Antti Palosaari <crope@iki.fi>
 L:	linux-media@vger.kernel.org
@@ -492,13 +491,6 @@ S:	Maintained
 F:	Documentation/hwmon/adt7475
 F:	drivers/hwmon/adt7475.c
 
-ADXL34X THREE-AXIS DIGITAL ACCELEROMETER DRIVER (ADXL345/ADXL346)
-M:	Michael Hennerich <michael.hennerich@analog.com>
-W:	http://wiki.analog.com/ADXL345
-W:	http://ez.analog.com/community/linux-device-drivers
-S:	Supported
-F:	drivers/input/misc/adxl34x.c
-
 ADVANSYS SCSI DRIVER
 M:	Matthew Wilcox <matthew@wil.cx>
 M:	Hannes Reinecke <hare@suse.com>
@@ -507,6 +499,13 @@ S:	Maintained
 F:	Documentation/scsi/advansys.txt
 F:	drivers/scsi/advansys.c
 
+ADXL34X THREE-AXIS DIGITAL ACCELEROMETER DRIVER (ADXL345/ADXL346)
+M:	Michael Hennerich <michael.hennerich@analog.com>
+W:	http://wiki.analog.com/ADXL345
+W:	http://ez.analog.com/community/linux-device-drivers
+S:	Supported
+F:	drivers/input/misc/adxl34x.c
+
 AEDSP16 DRIVER
 M:	Riccardo Facchetti <fizban@tin.it>
 S:	Maintained
@@ -808,6 +807,12 @@ W:	http://blackfin.uclinux.org/
 S:	Supported
 F:	sound/soc/blackfin/*
 
+ANALOG DEVICES INC DMA DRIVERS
+M:	Lars-Peter Clausen <lars@metafoo.de>
+W:	http://ez.analog.com/community/linux-device-drivers
+S:	Supported
+F:	drivers/dma/dma-axi-dmac.c
+
 ANALOG DEVICES INC IIO DRIVERS
 M:	Lars-Peter Clausen <lars@metafoo.de>
 M:	Michael Hennerich <Michael.Hennerich@analog.com>
@@ -820,12 +825,6 @@ X:	drivers/iio/*/adjd*
 F:	drivers/staging/iio/*/ad*
 F:	drivers/staging/iio/trigger/iio-trig-bfin-timer.c
 
-ANALOG DEVICES INC DMA DRIVERS
-M:	Lars-Peter Clausen <lars@metafoo.de>
-W:	http://ez.analog.com/community/linux-device-drivers
-S:	Supported
-F:	drivers/dma/dma-axi-dmac.c
-
 ANDROID CONFIG FRAGMENTS
 M:	Rob Herring <robh@kernel.org>
 S:	Supported
@@ -872,6 +871,15 @@ F:	include/linux/apm_bios.h
 F:	include/uapi/linux/apm_bios.h
 F:	drivers/char/apm-emulation.c
 
+APPARMOR SECURITY MODULE
+M:	John Johansen <john.johansen@canonical.com>
+L:	apparmor@lists.ubuntu.com (subscribers-only, general discussion)
+W:	apparmor.wiki.kernel.org
+T:	git git://git.kernel.org/pub/scm/linux/kernel/git/jj/apparmor-dev.git
+S:	Supported
+F:	security/apparmor/
+F:	Documentation/admin-guide/LSM/apparmor.rst
+
 APPLE BCM5974 MULTITOUCH DRIVER
 M:	Henrik Rydberg <rydberg@bitmath.org>
 L:	linux-input@vger.kernel.org
@@ -895,6 +903,18 @@ M:	Duc Dang <dhdang@apm.com>
 S:	Supported
 F:	arch/arm64/boot/dts/apm/
 
+APPLIED MICRO (APM) X-GENE SOC EDAC
+M:	Loc Ho <lho@apm.com>
+S:	Supported
+F:	drivers/edac/xgene_edac.c
+F:	Documentation/devicetree/bindings/edac/apm-xgene-edac.txt
+
+APPLIED MICRO (APM) X-GENE SOC ETHERNET (V2) DRIVER
+M:	Iyappan Subramanian <isubramanian@apm.com>
+M:	Keyur Chudgar <kchudgar@apm.com>
+S:	Supported
+F:	drivers/net/ethernet/apm/xgene-v2/
+
 APPLIED MICRO (APM) X-GENE SOC ETHERNET DRIVER
 M:	Iyappan Subramanian <isubramanian@apm.com>
 M:	Keyur Chudgar <kchudgar@apm.com>
@@ -905,12 +925,6 @@ F:	drivers/net/phy/mdio-xgene.c
 F:	Documentation/devicetree/bindings/net/apm-xgene-enet.txt
 F:	Documentation/devicetree/bindings/net/apm-xgene-mdio.txt
 
-APPLIED MICRO (APM) X-GENE SOC ETHERNET (V2) DRIVER
-M:	Iyappan Subramanian <isubramanian@apm.com>
-M:	Keyur Chudgar <kchudgar@apm.com>
-S:	Supported
-F:	drivers/net/ethernet/apm/xgene-v2/
-
 APPLIED MICRO (APM) X-GENE SOC PMU
 M:	Tai Nguyen <ttnguyen@apm.com>
 S:	Supported
@@ -930,6 +944,12 @@ S:	Maintained
 F:	drivers/video/fbdev/arcfb.c
 F:	drivers/video/fbdev/core/fb_defio.c
 
+ARC PGU DRM DRIVER
+M:	Alexey Brodkin <abrodkin@synopsys.com>
+S:	Supported
+F:	drivers/gpu/drm/arc/
+F:	Documentation/devicetree/bindings/display/snps,arcpgu.txt
+
 ARCNET NETWORK LAYER
 M:	Michael Grzeschik <m.grzeschik@pengutronix.de>
 L:	netdev@vger.kernel.org
@@ -937,12 +957,6 @@ S:	Maintained
 F:	drivers/net/arcnet/
 F:	include/uapi/linux/if_arcnet.h
 
-ARC PGU DRM DRIVER
-M:	Alexey Brodkin <abrodkin@synopsys.com>
-S:	Supported
-F:	drivers/gpu/drm/arc/
-F:	Documentation/devicetree/bindings/display/snps,arcpgu.txt
-
 ARM ARCHITECTED TIMER DRIVER
 M:	Mark Rutland <mark.rutland@arm.com>
 M:	Marc Zyngier <marc.zyngier@arm.com>
@@ -995,18 +1009,17 @@ S:	Maintained
 T:	git git://git.armlinux.org.uk/~rmk/linux-arm.git
 F:	arch/arm/
 
-ARM SUB-ARCHITECTURES
-L:	linux-arm-kernel@lists.infradead.org (moderated for non-subscribers)
-S:	Maintained
-F:	arch/arm/mach-*/
-F:	arch/arm/plat-*/
-T:	git git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc.git
-
 ARM PRIMECELL AACI PL041 DRIVER
 M:	Russell King <linux@armlinux.org.uk>
 S:	Maintained
 F:	sound/arm/aaci.*
 
+ARM PRIMECELL BUS SUPPORT
+M:	Russell King <linux@armlinux.org.uk>
+S:	Maintained
+F:	drivers/amba/
+F:	include/linux/amba/bus.h
+
 ARM PRIMECELL CLCD PL110 DRIVER
 M:	Russell King <linux@armlinux.org.uk>
 S:	Maintained
@@ -1030,11 +1043,22 @@ S:	Maintained
 F:	drivers/tty/serial/amba-pl01*.c
 F:	include/linux/amba/serial.h
 
-ARM PRIMECELL BUS SUPPORT
-M:	Russell King <linux@armlinux.org.uk>
+ARM SMMU DRIVERS
+M:	Will Deacon <will.deacon@arm.com>
+R:	Robin Murphy <robin.murphy@arm.com>
+L:	linux-arm-kernel@lists.infradead.org (moderated for non-subscribers)
 S:	Maintained
-F:	drivers/amba/
-F:	include/linux/amba/bus.h
+F:	drivers/iommu/arm-smmu.c
+F:	drivers/iommu/arm-smmu-v3.c
+F:	drivers/iommu/io-pgtable-arm.c
+F:	drivers/iommu/io-pgtable-arm-v7s.c
+
+ARM SUB-ARCHITECTURES
+L:	linux-arm-kernel@lists.infradead.org (moderated for non-subscribers)
+S:	Maintained
+F:	arch/arm/mach-*/
+F:	arch/arm/plat-*/
+T:	git git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc.git
 
 ARM/ACTIONS SEMI ARCHITECTURE
 M:	Andreas Färber <afaerber@suse.de>
@@ -1067,6 +1091,11 @@ M:	Lennert Buytenhek <kernel@wantstofly.org>
 L:	linux-arm-kernel@lists.infradead.org (moderated for non-subscribers)
 S:	Maintained
 
+ARM/Allwinner SoC Clock Support
+M:	Emilio López <emilio@elopez.com.ar>
+S:	Maintained
+F:	drivers/clk/sunxi/
+
 ARM/Allwinner sunXi SoC support
 M:	Maxime Ripard <maxime.ripard@free-electrons.com>
 M:	Chen-Yu Tsai <wens@csie.org>
@@ -1081,10 +1110,15 @@ F:	drivers/pinctrl/sunxi/
 F:	drivers/soc/sunxi/
 T:	git git://git.kernel.org/pub/scm/linux/kernel/git/sunxi/linux.git
 
-ARM/Allwinner SoC Clock Support
-M:	Emilio López <emilio@elopez.com.ar>
+ARM/Amlogic Meson SoC CLOCK FRAMEWORK
+M:	Neil Armstrong <narmstrong@baylibre.com>
+M:	Jerome Brunet <jbrunet@baylibre.com>
+L:	linux-amlogic@lists.infradead.org
 S:	Maintained
-F:	drivers/clk/sunxi/
+F:	drivers/clk/meson/
+F:	include/dt-bindings/clock/meson*
+F:	include/dt-bindings/clock/gxbb*
+F:	Documentation/devicetree/bindings/clock/amlogic*
 
 ARM/Amlogic Meson SoC support
 M:	Carlo Caione <carlo@caione.org>
@@ -1096,20 +1130,10 @@ S:	Maintained
 F:	arch/arm/mach-meson/
 F:	arch/arm/boot/dts/meson*
 F:	arch/arm64/boot/dts/amlogic/
-F: 	drivers/pinctrl/meson/
+F:	drivers/pinctrl/meson/
 F:	drivers/mmc/host/meson*
 N:	meson
 
-ARM/Amlogic Meson SoC CLOCK FRAMEWORK
-M:	Neil Armstrong <narmstrong@baylibre.com>
-M:	Jerome Brunet <jbrunet@baylibre.com>
-L:	linux-amlogic@lists.infradead.org
-S:	Maintained
-F:	drivers/clk/meson/
-F:	include/dt-bindings/clock/meson*
-F:	include/dt-bindings/clock/gxbb*
-F:	Documentation/devicetree/bindings/clock/amlogic*
-
 ARM/Annapurna Labs ALPINE ARCHITECTURE
 M:	Tsahee Zidenberg <tsahee@annapurnalabs.com>
 M:	Antoine Tenart <antoine.tenart@free-electrons.com>
@@ -1132,6 +1156,18 @@ F:	drivers/clk/axis
 F:	drivers/pinctrl/pinctrl-artpec*
 F:	Documentation/devicetree/bindings/pinctrl/axis,artpec6-pinctrl.txt
 
+ARM/ASPEED I2C DRIVER
+M:	Brendan Higgins <brendanhiggins@google.com>
+R:	Benjamin Herrenschmidt <benh@kernel.crashing.org>
+R:	Joel Stanley <joel@jms.id.au>
+L:	linux-i2c@vger.kernel.org
+L:	openbmc@lists.ozlabs.org (moderated for non-subscribers)
+S:	Maintained
+F:	drivers/irqchip/irq-aspeed-i2c-ic.c
+F:	drivers/i2c/busses/i2c-aspeed.c
+F:	Documentation/devicetree/bindings/interrupt-controller/aspeed,ast2400-i2c-ic.txt
+F:	Documentation/devicetree/bindings/i2c/i2c-aspeed.txt
+
 ARM/ASPEED MACHINE SUPPORT
 M:	Joel Stanley <joel@jms.id.au>
 S:	Maintained
@@ -1139,6 +1175,11 @@ F:	arch/arm/mach-aspeed/
 F:	arch/arm/boot/dts/aspeed-*
 F:	drivers/*/*aspeed*
 
+ARM/ATMEL AT91 Clock Support
+M:	Boris Brezillon <boris.brezillon@free-electrons.com>
+S:	Maintained
+F:	drivers/clk/at91
+
 ARM/ATMEL AT91RM9200, AT91SAM9 AND SAMA5 SOC SUPPORT
 M:	Nicolas Ferre <nicolas.ferre@microchip.com>
 M:	Alexandre Belloni <alexandre.belloni@free-electrons.com>
@@ -1155,11 +1196,6 @@ F:	arch/arm/boot/dts/sama*.dtsi
 F:	arch/arm/include/debug/at91.S
 F:	drivers/memory/atmel*
 
-ARM/ATMEL AT91 Clock Support
-M:	Boris Brezillon <boris.brezillon@free-electrons.com>
-S:	Maintained
-F:	drivers/clk/at91
-
 ARM/CALXEDA HIGHBANK ARCHITECTURE
 M:	Rob Herring <robh@kernel.org>
 L:	linux-arm-kernel@lists.infradead.org (moderated for non-subscribers)
@@ -1186,6 +1222,11 @@ L:	linux-arm-kernel@lists.infradead.org (moderated for non-subscribers)
 S:	Odd Fixes
 N:	clps711x
 
+ARM/CIRRUS LOGIC EDB9315A MACHINE SUPPORT
+M:	Lennert Buytenhek <kernel@wantstofly.org>
+L:	linux-arm-kernel@lists.infradead.org (moderated for non-subscribers)
+S:	Maintained
+
 ARM/CIRRUS LOGIC EP93XX ARM ARCHITECTURE
 M:	Hartley Sweeten <hsweeten@visionengravers.com>
 M:	Alexander Sverdlin <alexander.sverdlin@gmail.com>
@@ -1194,11 +1235,6 @@ S:	Maintained
 F:	arch/arm/mach-ep93xx/
 F:	arch/arm/mach-ep93xx/include/mach/
 
-ARM/CIRRUS LOGIC EDB9315A MACHINE SUPPORT
-M:	Lennert Buytenhek <kernel@wantstofly.org>
-L:	linux-arm-kernel@lists.infradead.org (moderated for non-subscribers)
-S:	Maintained
-
 ARM/CLKDEV SUPPORT
 M:	Russell King <linux@armlinux.org.uk>
 L:	linux-arm-kernel@lists.infradead.org (moderated for non-subscribers)
@@ -1212,6 +1248,13 @@ M:	Mike Rapoport <mike@compulab.co.il>
 L:	linux-arm-kernel@lists.infradead.org (moderated for non-subscribers)
 S:	Maintained
 
+ARM/CONEXANT DIGICOLOR MACHINE SUPPORT
+M:	Baruch Siach <baruch@tkos.co.il>
+L:	linux-arm-kernel@lists.infradead.org (moderated for non-subscribers)
+S:	Maintained
+F:	arch/arm/boot/dts/cx92755*
+N:	digicolor
+
 ARM/CONTEC MICRO9 MACHINE SUPPORT
 M:	Hubert Feurstein <hubert.feurstein@contec.at>
 S:	Maintained
@@ -1243,7 +1286,7 @@ L:	linux-arm-kernel@lists.infradead.org (moderated for non-subscribers)
 T:	git git://github.com/ulli-kroll/linux.git
 S:	Maintained
 F:	arch/arm/mach-gemini/
-F:	drivers/rtc/rtc-gemini.c
+F:	drivers/rtc/rtc-ftrtc010.c
 
 ARM/CSR SIRFPRIMA2 MACHINE SUPPORT
 M:	Barry Song <baohua@kernel.org>
@@ -1257,13 +1300,6 @@ F:	drivers/clocksource/timer-prima2.c
 F:	drivers/clocksource/timer-atlas7.c
 N:	[^a-z]sirf
 
-ARM/CONEXANT DIGICOLOR MACHINE SUPPORT
-M:	Baruch Siach <baruch@tkos.co.il>
-L:	linux-arm-kernel@lists.infradead.org (moderated for non-subscribers)
-S:	Maintained
-F:	arch/arm/boot/dts/cx92755*
-N:	digicolor
-
 ARM/EBSA110 MACHINE SUPPORT
 M:	Russell King <linux@armlinux.org.uk>
 L:	linux-arm-kernel@lists.infradead.org (moderated for non-subscribers)
@@ -1377,6 +1413,11 @@ L:	linux-arm-kernel@lists.infradead.org (moderated for non-subscribers)
 S:	Maintained
 F:	arch/arm/mach-pxa/colibri-pxa270-income.c
 
+ARM/INTEL IOP13XX ARM ARCHITECTURE
+M:	Lennert Buytenhek <kernel@wantstofly.org>
+L:	linux-arm-kernel@lists.infradead.org (moderated for non-subscribers)
+S:	Maintained
+
 ARM/INTEL IOP32X ARM ARCHITECTURE
 M:	Lennert Buytenhek <kernel@wantstofly.org>
 L:	linux-arm-kernel@lists.infradead.org (moderated for non-subscribers)
@@ -1386,11 +1427,6 @@ ARM/INTEL IOP33X ARM ARCHITECTURE
 L:	linux-arm-kernel@lists.infradead.org (moderated for non-subscribers)
 S:	Orphan
 
-ARM/INTEL IOP13XX ARM ARCHITECTURE
-M:	Lennert Buytenhek <kernel@wantstofly.org>
-L:	linux-arm-kernel@lists.infradead.org (moderated for non-subscribers)
-S:	Maintained
-
 ARM/INTEL IQ81342EX MACHINE SUPPORT
 M:	Lennert Buytenhek <kernel@wantstofly.org>
 L:	linux-arm-kernel@lists.infradead.org (moderated for non-subscribers)
@@ -1425,39 +1461,6 @@ M:	Lennert Buytenhek <kernel@wantstofly.org>
 L:	linux-arm-kernel@lists.infradead.org (moderated for non-subscribers)
 S:	Maintained
 
-ARM/TEXAS INSTRUMENT KEYSTONE ARCHITECTURE
-M:	Santosh Shilimkar <ssantosh@kernel.org>
-L:	linux-arm-kernel@lists.infradead.org (moderated for non-subscribers)
-S:	Maintained
-F:	arch/arm/mach-keystone/
-F:	arch/arm/boot/dts/keystone-*
-T:	git git://git.kernel.org/pub/scm/linux/kernel/git/ssantosh/linux-keystone.git
-
-ARM/TEXAS INSTRUMENT KEYSTONE CLOCK FRAMEWORK
-M:	Santosh Shilimkar <ssantosh@kernel.org>
-L:	linux-kernel@vger.kernel.org
-S:	Maintained
-F:	drivers/clk/keystone/
-
-ARM/TEXAS INSTRUMENT KEYSTONE ClOCKSOURCE
-M:	Santosh Shilimkar <ssantosh@kernel.org>
-L:	linux-arm-kernel@lists.infradead.org (moderated for non-subscribers)
-L:	linux-kernel@vger.kernel.org
-S:	Maintained
-F:	drivers/clocksource/timer-keystone.c
-
-ARM/TEXAS INSTRUMENT KEYSTONE RESET DRIVER
-M:	Santosh Shilimkar <ssantosh@kernel.org>
-L:	linux-kernel@vger.kernel.org
-S:	Maintained
-F:	drivers/power/reset/keystone-reset.c
-
-ARM/TEXAS INSTRUMENT AEMIF/EMIF DRIVERS
-M:	Santosh Shilimkar <ssantosh@kernel.org>
-L:	linux-kernel@vger.kernel.org
-S:	Maintained
-F:	drivers/memory/*emif*
-
 ARM/LG1K ARCHITECTURE
 M:	Chanho Min <chanho.min@lge.com>
 L:	linux-arm-kernel@lists.infradead.org (moderated for non-subscribers)
@@ -1500,24 +1503,6 @@ ARM/MAGICIAN MACHINE SUPPORT
 M:	Philipp Zabel <philipp.zabel@gmail.com>
 S:	Maintained
 
-ARM/Marvell Kirkwood and Armada 370, 375, 38x, 39x, XP, 3700, 7K/8K SOC support
-M:	Jason Cooper <jason@lakedaemon.net>
-M:	Andrew Lunn <andrew@lunn.ch>
-M:	Gregory Clement <gregory.clement@free-electrons.com>
-M:	Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
-L:	linux-arm-kernel@lists.infradead.org (moderated for non-subscribers)
-S:	Maintained
-F:	arch/arm/boot/dts/armada*
-F:	arch/arm/boot/dts/kirkwood*
-F:	arch/arm/configs/mvebu_*_defconfig
-F:	arch/arm/mach-mvebu/
-F:	arch/arm64/boot/dts/marvell/armada*
-F:	drivers/cpufreq/mvebu-cpufreq.c
-F:	drivers/irqchip/irq-armada-370-xp.c
-F:	drivers/irqchip/irq-mvebu-*
-F:	drivers/pinctrl/mvebu/
-F:	drivers/rtc/rtc-armada38x.c
-
 ARM/Marvell Berlin SoC support
 M:	Jisheng Zhang <jszhang@marvell.com>
 M:	Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
@@ -1527,7 +1512,6 @@ F:	arch/arm/mach-berlin/
 F:	arch/arm/boot/dts/berlin*
 F:	arch/arm64/boot/dts/marvell/berlin*
 
-
 ARM/Marvell Dove/MV78xx0/Orion SOC support
 M:	Jason Cooper <jason@lakedaemon.net>
 M:	Andrew Lunn <andrew@lunn.ch>
@@ -1543,24 +1527,23 @@ F:	arch/arm/plat-orion/
 F:	arch/arm/boot/dts/dove*
 F:	arch/arm/boot/dts/orion5x*
 
-
-ARM/Orion SoC/Technologic Systems TS-78xx platform support
-M:	Alexander Clouter <alex@digriz.org.uk>
-L:	linux-arm-kernel@lists.infradead.org (moderated for non-subscribers)
-W:	http://www.digriz.org.uk/ts78xx/kernel
-S:	Maintained
-F:	arch/arm/mach-orion5x/ts78xx-*
-
-ARM/OXNAS platform support
-M:	Neil Armstrong <narmstrong@baylibre.com>
+ARM/Marvell Kirkwood and Armada 370, 375, 38x, 39x, XP, 3700, 7K/8K SOC support
+M:	Jason Cooper <jason@lakedaemon.net>
+M:	Andrew Lunn <andrew@lunn.ch>
+M:	Gregory Clement <gregory.clement@free-electrons.com>
+M:	Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
 L:	linux-arm-kernel@lists.infradead.org (moderated for non-subscribers)
-L:	linux-oxnas@lists.tuxfamily.org (moderated for non-subscribers)
 S:	Maintained
-F:	arch/arm/mach-oxnas/
-F:	arch/arm/boot/dts/ox8*.dtsi
-F:	arch/arm/boot/dts/wd-mbwe.dts
-F:	arch/arm/boot/dts/cloudengines-pogoplug-series-3.dts
-N:	oxnas
+F:	arch/arm/boot/dts/armada*
+F:	arch/arm/boot/dts/kirkwood*
+F:	arch/arm/configs/mvebu_*_defconfig
+F:	arch/arm/mach-mvebu/
+F:	arch/arm64/boot/dts/marvell/armada*
+F:	drivers/cpufreq/mvebu-cpufreq.c
+F:	drivers/irqchip/irq-armada-370-xp.c
+F:	drivers/irqchip/irq-mvebu-*
+F:	drivers/pinctrl/mvebu/
+F:	drivers/rtc/rtc-armada38x.c
 
 ARM/Mediatek RTC DRIVER
 M:	Eddie Huang <eddie.huang@mediatek.com>
@@ -1615,16 +1598,53 @@ F:	drivers/pinctrl/nomadik/
 F:	drivers/i2c/busses/i2c-nomadik.c
 T:	git git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-nomadik.git
 
+ARM/NUVOTON W90X900 ARM ARCHITECTURE
+M:	Wan ZongShun <mcuos.com@gmail.com>
+L:	linux-arm-kernel@lists.infradead.org (moderated for non-subscribers)
+W:	http://www.mcuos.com
+S:	Maintained
+F:	arch/arm/mach-w90x900/
+F:	drivers/input/keyboard/w90p910_keypad.c
+F:	drivers/input/touchscreen/w90p910_ts.c
+F:	drivers/watchdog/nuc900_wdt.c
+F:	drivers/net/ethernet/nuvoton/w90p910_ether.c
+F:	drivers/mtd/nand/nuc900_nand.c
+F:	drivers/rtc/rtc-nuc900.c
+F:	drivers/spi/spi-nuc900.c
+F:	drivers/usb/host/ehci-w90x900.c
+F:	drivers/video/fbdev/nuc900fb.c
+
 ARM/OPENMOKO NEO FREERUNNER (GTA02) MACHINE SUPPORT
 M:	Nelson Castillo <arhuaco@freaks-unidos.net>
 L:	openmoko-kernel@lists.openmoko.org (subscribers-only)
 W:	http://wiki.openmoko.org/wiki/Neo_FreeRunner
 S:	Supported
 
-ARM/TOSA MACHINE SUPPORT
-M:	Dmitry Eremin-Solenikov <dbaryshkov@gmail.com>
-M:	Dirk Opfer <dirk@opfer-online.de>
+ARM/Orion SoC/Technologic Systems TS-78xx platform support
+M:	Alexander Clouter <alex@digriz.org.uk>
+L:	linux-arm-kernel@lists.infradead.org (moderated for non-subscribers)
+W:	http://www.digriz.org.uk/ts78xx/kernel
 S:	Maintained
+F:	arch/arm/mach-orion5x/ts78xx-*
+
+ARM/OXNAS platform support
+M:	Neil Armstrong <narmstrong@baylibre.com>
+L:	linux-arm-kernel@lists.infradead.org (moderated for non-subscribers)
+L:	linux-oxnas@lists.tuxfamily.org (moderated for non-subscribers)
+S:	Maintained
+F:	arch/arm/mach-oxnas/
+F:	arch/arm/boot/dts/ox8*.dtsi
+F:	arch/arm/boot/dts/wd-mbwe.dts
+F:	arch/arm/boot/dts/cloudengines-pogoplug-series-3.dts
+N:	oxnas
+
+ARM/PALM TREO SUPPORT
+M:	Tomas Cech <sleep_walker@suse.com>
+L:	linux-arm-kernel@lists.infradead.org
+W:	http://hackndev.com
+S:	Maintained
+F:	arch/arm/mach-pxa/include/mach/palmtreo.h
+F:	arch/arm/mach-pxa/palmtreo.c
 
 ARM/PALMTX,PALMT5,PALMLD,PALMTE2,PALMTC SUPPORT
 M:	Marek Vasut <marek.vasut@gmail.com>
@@ -1642,14 +1662,6 @@ F:	arch/arm/mach-pxa/palmte2.c
 F:	arch/arm/mach-pxa/include/mach/palmtc.h
 F:	arch/arm/mach-pxa/palmtc.c
 
-ARM/PALM TREO SUPPORT
-M:	Tomas Cech <sleep_walker@suse.com>
-L:	linux-arm-kernel@lists.infradead.org
-W:	http://hackndev.com
-S:	Maintained
-F:	arch/arm/mach-pxa/include/mach/palmtreo.h
-F:	arch/arm/mach-pxa/palmtreo.c
-
 ARM/PALMZ72 SUPPORT
 M:	Sergey Lapin <slapin@ossfans.org>
 L:	linux-arm-kernel@lists.infradead.org
@@ -1790,17 +1802,6 @@ L:	linux-media@vger.kernel.org
 S:	Maintained
 F:	drivers/media/platform/s5p-g2d/
 
-ARM/SAMSUNG S5P SERIES Multi Format Codec (MFC) SUPPORT
-M:	Kyungmin Park <kyungmin.park@samsung.com>
-M:	Kamil Debski <kamil@wypas.org>
-M:	Jeongtae Park <jtp.park@samsung.com>
-M:	Andrzej Hajda <a.hajda@samsung.com>
-L:	linux-arm-kernel@lists.infradead.org
-L:	linux-media@vger.kernel.org
-S:	Maintained
-F:	arch/arm/plat-samsung/s5p-dev-mfc.c
-F:	drivers/media/platform/s5p-mfc/
-
 ARM/SAMSUNG S5P SERIES HDMI CEC SUBSYSTEM SUPPORT
 M:	Marek Szyprowski <m.szyprowski@samsung.com>
 L:	linux-samsung-soc@vger.kernel.org (moderated for non-subscribers)
@@ -1817,6 +1818,17 @@ L:	linux-media@vger.kernel.org
 S:	Maintained
 F:	drivers/media/platform/s5p-jpeg/
 
+ARM/SAMSUNG S5P SERIES Multi Format Codec (MFC) SUPPORT
+M:	Kyungmin Park <kyungmin.park@samsung.com>
+M:	Kamil Debski <kamil@wypas.org>
+M:	Jeongtae Park <jtp.park@samsung.com>
+M:	Andrzej Hajda <a.hajda@samsung.com>
+L:	linux-arm-kernel@lists.infradead.org
+L:	linux-media@vger.kernel.org
+S:	Maintained
+F:	arch/arm/plat-samsung/s5p-dev-mfc.c
+F:	drivers/media/platform/s5p-mfc/
+
 ARM/SHMOBILE ARM ARCHITECTURE
 M:	Simon Horman <horms@verge.net.au>
 M:	Magnus Damm <magnus.damm@gmail.com>
@@ -1910,26 +1922,48 @@ M:	"Mark F. Brown" <mark.brown314@gmail.com>
 L:	linux-arm-kernel@lists.infradead.org (moderated for non-subscribers)
 S:	Maintained
 
+ARM/TEXAS INSTRUMENT AEMIF/EMIF DRIVERS
+M:	Santosh Shilimkar <ssantosh@kernel.org>
+L:	linux-kernel@vger.kernel.org
+S:	Maintained
+F:	drivers/memory/*emif*
+
+ARM/TEXAS INSTRUMENT KEYSTONE ARCHITECTURE
+M:	Santosh Shilimkar <ssantosh@kernel.org>
+L:	linux-arm-kernel@lists.infradead.org (moderated for non-subscribers)
+S:	Maintained
+F:	arch/arm/mach-keystone/
+F:	arch/arm/boot/dts/keystone-*
+T:	git git://git.kernel.org/pub/scm/linux/kernel/git/ssantosh/linux-keystone.git
+
+ARM/TEXAS INSTRUMENT KEYSTONE CLOCK FRAMEWORK
+M:	Santosh Shilimkar <ssantosh@kernel.org>
+L:	linux-kernel@vger.kernel.org
+S:	Maintained
+F:	drivers/clk/keystone/
+
+ARM/TEXAS INSTRUMENT KEYSTONE ClOCKSOURCE
+M:	Santosh Shilimkar <ssantosh@kernel.org>
+L:	linux-arm-kernel@lists.infradead.org (moderated for non-subscribers)
+L:	linux-kernel@vger.kernel.org
+S:	Maintained
+F:	drivers/clocksource/timer-keystone.c
+
+ARM/TEXAS INSTRUMENT KEYSTONE RESET DRIVER
+M:	Santosh Shilimkar <ssantosh@kernel.org>
+L:	linux-kernel@vger.kernel.org
+S:	Maintained
+F:	drivers/power/reset/keystone-reset.c
+
 ARM/THECUS N2100 MACHINE SUPPORT
 M:	Lennert Buytenhek <kernel@wantstofly.org>
 L:	linux-arm-kernel@lists.infradead.org (moderated for non-subscribers)
 S:	Maintained
 
-ARM/NUVOTON W90X900 ARM ARCHITECTURE
-M:	Wan ZongShun <mcuos.com@gmail.com>
-L:	linux-arm-kernel@lists.infradead.org (moderated for non-subscribers)
-W:	http://www.mcuos.com
+ARM/TOSA MACHINE SUPPORT
+M:	Dmitry Eremin-Solenikov <dbaryshkov@gmail.com>
+M:	Dirk Opfer <dirk@opfer-online.de>
 S:	Maintained
-F:	arch/arm/mach-w90x900/
-F:	drivers/input/keyboard/w90p910_keypad.c
-F:	drivers/input/touchscreen/w90p910_ts.c
-F:	drivers/watchdog/nuc900_wdt.c
-F:	drivers/net/ethernet/nuvoton/w90p910_ether.c
-F:	drivers/mtd/nand/nuc900_nand.c
-F:	drivers/rtc/rtc-nuc900.c
-F:	drivers/spi/spi-nuc900.c
-F:	drivers/usb/host/ehci-w90x900.c
-F:	drivers/video/fbdev/nuc900fb.c
 
 ARM/U300 MACHINE SUPPORT
 M:	Linus Walleij <linus.walleij@linaro.org>
@@ -2074,16 +2108,6 @@ F:	drivers/i2c/busses/i2c-cadence.c
 F:	drivers/mmc/host/sdhci-of-arasan.c
 F:	drivers/edac/synopsys_edac.c
 
-ARM SMMU DRIVERS
-M:	Will Deacon <will.deacon@arm.com>
-R:	Robin Murphy <robin.murphy@arm.com>
-L:	linux-arm-kernel@lists.infradead.org (moderated for non-subscribers)
-S:	Maintained
-F:	drivers/iommu/arm-smmu.c
-F:	drivers/iommu/arm-smmu-v3.c
-F:	drivers/iommu/io-pgtable-arm.c
-F:	drivers/iommu/io-pgtable-arm-v7s.c
-
 ARM64 PORT (AARCH64 ARCHITECTURE)
 M:	Catalin Marinas <catalin.marinas@arm.com>
 M:	Will Deacon <will.deacon@arm.com>
@@ -2195,21 +2219,10 @@ T:	git git://git.kernel.org/pub/scm/linux/kernel/git/kvalo/ath.git
 S:	Supported
 F:	drivers/net/wireless/ath/ath6kl/
 
-WILOCITY WIL6210 WIRELESS DRIVER
-M:	Maya Erez <qca_merez@qca.qualcomm.com>
-L:	linux-wireless@vger.kernel.org
-L:	wil6210@qca.qualcomm.com
-S:	Supported
-W:	http://wireless.kernel.org/en/users/Drivers/wil6210
-F:	drivers/net/wireless/ath/wil6210/
-F:	include/uapi/linux/wil6210_uapi.h
-
-CARL9170 LINUX COMMUNITY WIRELESS DRIVER
-M:	Christian Lamparter <chunkeey@googlemail.com>
-L:	linux-wireless@vger.kernel.org
-W:	http://wireless.kernel.org/en/users/Drivers/carl9170
+ATI_REMOTE2 DRIVER
+M:	Ville Syrjala <syrjala@sci.fi>
 S:	Maintained
-F:	drivers/net/wireless/ath/carl9170/
+F:	drivers/input/misc/ati_remote2.c
 
 ATK0110 HWMON DRIVER
 M:	Luca Tettamanti <kronos.it@gmail.com>
@@ -2217,11 +2230,6 @@ L:	linux-hwmon@vger.kernel.org
 S:	Maintained
 F:	drivers/hwmon/asus_atk0110.c
 
-ATI_REMOTE2 DRIVER
-M:	Ville Syrjala <syrjala@sci.fi>
-S:	Maintained
-F:	drivers/input/misc/ati_remote2.c
-
 ATLX ETHERNET DRIVERS
 M:	Jay Cliburn <jcliburn@gmail.com>
 M:	Chris Snook <chris.snook@gmail.com>
@@ -2251,25 +2259,12 @@ M:	Nicolas Ferre <nicolas.ferre@microchip.com>
 S:	Supported
 F:	drivers/power/reset/at91-sama5d2_shdwc.c
 
-ATMEL SAMA5D2 ADC DRIVER
-M:	Ludovic Desroches <ludovic.desroches@microchip.com>
-L:	linux-iio@vger.kernel.org
-S:	Supported
-F:	drivers/iio/adc/at91-sama5d2_adc.c
-
 ATMEL Audio ALSA driver
 M:	Nicolas Ferre <nicolas.ferre@microchip.com>
 L:	alsa-devel@alsa-project.org (moderated for non-subscribers)
 S:	Supported
 F:	sound/soc/atmel
 
-ATMEL XDMA DRIVER
-M:	Ludovic Desroches <ludovic.desroches@microchip.com>
-L:	linux-arm-kernel@lists.infradead.org
-L:	dmaengine@vger.kernel.org
-S:	Supported
-F:	drivers/dma/at_xdmac.c
-
 ATMEL I2C DRIVER
 M:	Ludovic Desroches <ludovic.desroches@microchip.com>
 L:	linux-i2c@vger.kernel.org
@@ -2295,6 +2290,14 @@ M:	Nicolas Ferre <nicolas.ferre@microchip.com>
 S:	Supported
 F:	drivers/net/ethernet/cadence/
 
+ATMEL MAXTOUCH DRIVER
+M:	Nick Dyer <nick@shmanahar.org>
+T:	git git://github.com/ndyer/linux.git
+S:	Maintained
+F:	Documentation/devicetree/bindings/input/atmel,maxtouch.txt
+F:	drivers/input/touchscreen/atmel_mxt_ts.c
+F:	include/linux/platform_data/atmel_mxt_ts.h
+
 ATMEL NAND DRIVER
 M:	Wenyou Yang <wenyou.yang@atmel.com>
 M:	Josh Wu <rainyfeeling@outlook.com>
@@ -2302,6 +2305,12 @@ L:	linux-mtd@lists.infradead.org
 S:	Supported
 F:	drivers/mtd/nand/atmel/*
 
+ATMEL SAMA5D2 ADC DRIVER
+M:	Ludovic Desroches <ludovic.desroches@microchip.com>
+L:	linux-iio@vger.kernel.org
+S:	Supported
+F:	drivers/iio/adc/at91-sama5d2_adc.c
+
 ATMEL SDMMC DRIVER
 M:	Ludovic Desroches <ludovic.desroches@microchip.com>
 L:	linux-mmc@vger.kernel.org
@@ -2341,13 +2350,12 @@ W:	http://atmelwlandriver.sourceforge.net/
 S:	Maintained
 F:	drivers/net/wireless/atmel/atmel*
 
-ATMEL MAXTOUCH DRIVER
-M:	Nick Dyer <nick@shmanahar.org>
-T:	git git://github.com/ndyer/linux.git
-S:	Maintained
-F:	Documentation/devicetree/bindings/input/atmel,maxtouch.txt
-F:	drivers/input/touchscreen/atmel_mxt_ts.c
-F:	include/linux/platform_data/atmel_mxt_ts.h
+ATMEL XDMA DRIVER
+M:	Ludovic Desroches <ludovic.desroches@microchip.com>
+L:	linux-arm-kernel@lists.infradead.org
+L:	dmaengine@vger.kernel.org
+S:	Supported
+F:	drivers/dma/at_xdmac.c
 
 ATOMIC INFRASTRUCTURE
 M:	Will Deacon <will.deacon@arm.com>
@@ -2401,13 +2409,6 @@ F:	include/uapi/linux/ax25.h
 F:	include/net/ax25.h
 F:	net/ax25/
 
-AXENTIA ASOC DRIVERS
-M:	Peter Rosin <peda@axentia.se>
-L:	alsa-devel@alsa-project.org (moderated for non-subscribers)
-S:	Maintained
-F:	Documentation/devicetree/bindings/sound/axentia,*
-F:	sound/soc/atmel/tse850-pcm5142.c
-
 AXENTIA ARM DEVICES
 M:	Peter Rosin <peda@axentia.se>
 L:	linux-arm-kernel@lists.infradead.org (moderated for non-subscribers)
@@ -2416,6 +2417,13 @@ F:	Documentation/devicetree/bindings/arm/axentia.txt
 F:	arch/arm/boot/dts/at91-linea.dtsi
 F:	arch/arm/boot/dts/at91-tse850-3.dts
 
+AXENTIA ASOC DRIVERS
+M:	Peter Rosin <peda@axentia.se>
+L:	alsa-devel@alsa-project.org (moderated for non-subscribers)
+S:	Maintained
+F:	Documentation/devicetree/bindings/sound/axentia,*
+F:	sound/soc/atmel/tse850-pcm5142.c
+
 AZ6007 DVB DRIVER
 M:	Mauro Carvalho Chehab <mchehab@s-opensource.com>
 M:	Mauro Carvalho Chehab <mchehab@kernel.org>
@@ -2495,27 +2503,27 @@ W:	https://linuxtv.org
 S:	Supported
 F:	drivers/media/platform/sti/bdisp
 
-DELTA ST MEDIA DRIVER
-M:	Hugues Fruchet <hugues.fruchet@st.com>
-L:	linux-media@vger.kernel.org
-T:	git git://linuxtv.org/media_tree.git
-W:	https://linuxtv.org
-S:	Supported
-F:	drivers/media/platform/sti/delta
+BECKHOFF CX5020 ETHERCAT MASTER DRIVER
+M:	Dariusz Marcinkiewicz <reksio@newterm.pl>
+L:	netdev@vger.kernel.org
+S:	Maintained
+F:	drivers/net/ethernet/ec_bhf.c
 
 BEFS FILE SYSTEM
-M:	Luis de Bethencourt <luisbg@osg.samsung.com>
+M:	Luis de Bethencourt <luisbg@kernel.org>
 M:	Salah Triki <salah.triki@gmail.com>
 S:	Maintained
-T:	git git://github.com/luisbg/linux-befs.git
+T:	git git://git.kernel.org/pub/scm/linux/kernel/git/luisbg/linux-befs.git
 F:	Documentation/filesystems/befs.txt
 F:	fs/befs/
 
-BECKHOFF CX5020 ETHERCAT MASTER DRIVER
-M:	Dariusz Marcinkiewicz <reksio@newterm.pl>
-L:	netdev@vger.kernel.org
+BFQ I/O SCHEDULER
+M:	Paolo Valente <paolo.valente@linaro.org>
+M:	Jens Axboe <axboe@kernel.dk>
+L:	linux-block@vger.kernel.org
 S:	Maintained
-F:	drivers/net/ethernet/ec_bhf.c
+F:	block/bfq-*
+F:	Documentation/block/bfq-iosched.txt
 
 BFS FILE SYSTEM
 M:	"Tigran A. Aivazian" <aivazian.tigran@gmail.com>
@@ -2538,6 +2546,22 @@ W:	http://blackfin.uclinux.org
 S:	Supported
 F:	drivers/net/ethernet/adi/
 
+BLACKFIN I2C TWI DRIVER
+M:	Sonic Zhang <sonic.zhang@analog.com>
+L:	adi-buildroot-devel@lists.sourceforge.net (moderated for non-subscribers)
+W:	http://blackfin.uclinux.org/
+S:	Supported
+F:	drivers/i2c/busses/i2c-bfin-twi.c
+
+BLACKFIN MEDIA DRIVER
+M:	Scott Jiang <scott.jiang.linux@gmail.com>
+L:	adi-buildroot-devel@lists.sourceforge.net (moderated for non-subscribers)
+W:	http://blackfin.uclinux.org/
+S:	Supported
+F:	drivers/media/platform/blackfin/
+F:	drivers/media/i2c/adv7183*
+F:	drivers/media/i2c/vs6624*
+
 BLACKFIN RTC DRIVER
 L:	adi-buildroot-devel@lists.sourceforge.net (moderated for non-subscribers)
 W:	http://blackfin.uclinux.org
@@ -2564,22 +2588,6 @@ W:	http://blackfin.uclinux.org
 S:	Supported
 F:	drivers/watchdog/bfin_wdt.c
 
-BLACKFIN I2C TWI DRIVER
-M:	Sonic Zhang <sonic.zhang@analog.com>
-L:	adi-buildroot-devel@lists.sourceforge.net (moderated for non-subscribers)
-W:	http://blackfin.uclinux.org/
-S:	Supported
-F:	drivers/i2c/busses/i2c-bfin-twi.c
-
-BLACKFIN MEDIA DRIVER
-M:	Scott Jiang <scott.jiang.linux@gmail.com>
-L:	adi-buildroot-devel@lists.sourceforge.net (moderated for non-subscribers)
-W:	http://blackfin.uclinux.org/
-S:	Supported
-F:	drivers/media/platform/blackfin/
-F:	drivers/media/i2c/adv7183*
-F:	drivers/media/i2c/vs6624*
-
 BLINKM RGB LED DRIVER
 M:	Jan-Simon Moeller <jansimon.moeller@gmx.de>
 S:	Maintained
@@ -2594,14 +2602,6 @@ F:	block/
 F:	kernel/trace/blktrace.c
 F:	lib/sbitmap.c
 
-BFQ I/O SCHEDULER
-M:	Paolo Valente <paolo.valente@linaro.org>
-M:	Jens Axboe <axboe@kernel.dk>
-L:	linux-block@vger.kernel.org
-S:	Maintained
-F:	block/bfq-*
-F:	Documentation/block/bfq-iosched.txt
-
 BLOCK2MTD DRIVER
 M:	Joern Engel <joern@lazybastard.org>
 L:	linux-mtd@lists.infradead.org
@@ -2631,21 +2631,6 @@ S:	Maintained
 F:	net/bluetooth/
 F:	include/net/bluetooth/
 
-DMA MAPPING HELPERS
-M:	Christoph Hellwig <hch@lst.de>
-M:	Marek Szyprowski <m.szyprowski@samsung.com>
-R:	Robin Murphy <robin.murphy@arm.com>
-L:	linux-kernel@vger.kernel.org
-T:	git git://git.infradead.org/users/hch/dma-mapping.git
-W:	http://git.infradead.org/users/hch/dma-mapping.git
-S:	Supported
-F:	lib/dma-debug.c
-F:	lib/dma-noop.c
-F:	lib/dma-virt.c
-F:	drivers/base/dma-mapping.c
-F:	drivers/base/dma-coherent.c
-F:	include/linux/dma-mapping.h
-
 BONDING DRIVER
 M:	Jay Vosburgh <j.vosburgh@gmail.com>
 M:	Veaceslav Falico <vfalico@gmail.com>
@@ -2693,35 +2678,6 @@ S:	Supported
 F:	drivers/net/dsa/b53/*
 F:	include/linux/platform_data/b53.h
 
-BROADCOM GENET ETHERNET DRIVER
-M:	Florian Fainelli <f.fainelli@gmail.com>
-L:	netdev@vger.kernel.org
-S:	Supported
-F:	drivers/net/ethernet/broadcom/genet/
-
-BROADCOM BNX2 GIGABIT ETHERNET DRIVER
-M:	Rasesh Mody <rasesh.mody@cavium.com>
-M:	Harish Patil <harish.patil@cavium.com>
-M:	Dept-GELinuxNICDev@cavium.com
-L:	netdev@vger.kernel.org
-S:	Supported
-F:	drivers/net/ethernet/broadcom/bnx2.*
-F:	drivers/net/ethernet/broadcom/bnx2_*
-
-BROADCOM BNX2X 10 GIGABIT ETHERNET DRIVER
-M:	Yuval Mintz <Yuval.Mintz@cavium.com>
-M:	Ariel Elior <ariel.elior@cavium.com>
-M:	everest-linux-l2@cavium.com
-L:	netdev@vger.kernel.org
-S:	Supported
-F:	drivers/net/ethernet/broadcom/bnx2x/
-
-BROADCOM BNXT_EN 50 GIGABIT ETHERNET DRIVER
-M:	Michael Chan <michael.chan@broadcom.com>
-L:	netdev@vger.kernel.org
-S:	Supported
-F:	drivers/net/ethernet/broadcom/bnxt/
-
 BROADCOM BCM281XX/BCM11XXX/BCM216XX ARM ARCHITECTURE
 M:	Florian Fainelli <f.fainelli@gmail.com>
 M:	Ray Jui <rjui@broadcom.com>
@@ -2800,6 +2756,13 @@ F:	arch/arm/boot/dts/bcm7*.dts*
 F:	drivers/bus/brcmstb_gisb.c
 N:	brcmstb
 
+BROADCOM BMIPS CPUFREQ DRIVER
+M:	Markus Mayer <mmayer@broadcom.com>
+M:	bcm-kernel-feedback-list@broadcom.com
+L:	linux-pm@vger.kernel.org
+S:	Maintained
+F:	drivers/cpufreq/bmips-cpufreq.c
+
 BROADCOM BMIPS MIPS ARCHITECTURE
 M:	Kevin Cernekee <cernekee@gmail.com>
 M:	Florian Fainelli <f.fainelli@gmail.com>
@@ -2816,20 +2779,40 @@ F:	drivers/irqchip/irq-brcmstb*
 F:	include/linux/bcm963xx_nvram.h
 F:	include/linux/bcm963xx_tag.h
 
-BROADCOM BMIPS CPUFREQ DRIVER
-M:	Markus Mayer <mmayer@broadcom.com>
-M:	bcm-kernel-feedback-list@broadcom.com
-L:	linux-pm@vger.kernel.org
-S:	Maintained
-F:	drivers/cpufreq/bmips-cpufreq.c
+BROADCOM BNX2 GIGABIT ETHERNET DRIVER
+M:	Rasesh Mody <rasesh.mody@cavium.com>
+M:	Harish Patil <harish.patil@cavium.com>
+M:	Dept-GELinuxNICDev@cavium.com
+L:	netdev@vger.kernel.org
+S:	Supported
+F:	drivers/net/ethernet/broadcom/bnx2.*
+F:	drivers/net/ethernet/broadcom/bnx2_*
 
-BROADCOM TG3 GIGABIT ETHERNET DRIVER
-M:	Siva Reddy Kallam <siva.kallam@broadcom.com>
-M:	Prashant Sreedharan <prashant@broadcom.com>
-M:	Michael Chan <mchan@broadcom.com>
+BROADCOM BNX2FC 10 GIGABIT FCOE DRIVER
+M:	QLogic-Storage-Upstream@qlogic.com
+L:	linux-scsi@vger.kernel.org
+S:	Supported
+F:	drivers/scsi/bnx2fc/
+
+BROADCOM BNX2I 1/10 GIGABIT iSCSI DRIVER
+M:	QLogic-Storage-Upstream@qlogic.com
+L:	linux-scsi@vger.kernel.org
+S:	Supported
+F:	drivers/scsi/bnx2i/
+
+BROADCOM BNX2X 10 GIGABIT ETHERNET DRIVER
+M:	Yuval Mintz <Yuval.Mintz@cavium.com>
+M:	Ariel Elior <ariel.elior@cavium.com>
+M:	everest-linux-l2@cavium.com
 L:	netdev@vger.kernel.org
 S:	Supported
-F:	drivers/net/ethernet/broadcom/tg3.*
+F:	drivers/net/ethernet/broadcom/bnx2x/
+
+BROADCOM BNXT_EN 50 GIGABIT ETHERNET DRIVER
+M:	Michael Chan <michael.chan@broadcom.com>
+L:	netdev@vger.kernel.org
+S:	Supported
+F:	drivers/net/ethernet/broadcom/bnxt/
 
 BROADCOM BRCM80211 IEEE802.11n WIRELESS DRIVER
 M:	Arend van Spriel <arend.vanspriel@broadcom.com>
@@ -2843,17 +2826,18 @@ L:	brcm80211-dev-list@cypress.com
 S:	Supported
 F:	drivers/net/wireless/broadcom/brcm80211/
 
-BROADCOM BNX2FC 10 GIGABIT FCOE DRIVER
-M:	QLogic-Storage-Upstream@qlogic.com
-L:	linux-scsi@vger.kernel.org
+BROADCOM BRCMSTB GPIO DRIVER
+M:	Gregory Fong <gregory.0xf0@gmail.com>
+L:	bcm-kernel-feedback-list@broadcom.com
 S:	Supported
-F:	drivers/scsi/bnx2fc/
+F:	drivers/gpio/gpio-brcmstb.c
+F:	Documentation/devicetree/bindings/gpio/brcm,brcmstb-gpio.txt
 
-BROADCOM BNX2I 1/10 GIGABIT iSCSI DRIVER
-M:	QLogic-Storage-Upstream@qlogic.com
-L:	linux-scsi@vger.kernel.org
+BROADCOM GENET ETHERNET DRIVER
+M:	Florian Fainelli <f.fainelli@gmail.com>
+L:	netdev@vger.kernel.org
 S:	Supported
-F:	drivers/scsi/bnx2i/
+F:	drivers/net/ethernet/broadcom/genet/
 
 BROADCOM IPROC ARM ARCHITECTURE
 M:	Ray Jui <rjui@broadcom.com>
@@ -2880,13 +2864,6 @@ F:	arch/arm64/boot/dts/broadcom/ns2*
 F:	drivers/clk/bcm/clk-ns*
 F:	drivers/pinctrl/bcm/pinctrl-ns*
 
-BROADCOM BRCMSTB GPIO DRIVER
-M:	Gregory Fong <gregory.0xf0@gmail.com>
-L:	bcm-kernel-feedback-list@broadcom.com
-S:	Supported
-F:	drivers/gpio/gpio-brcmstb.c
-F:	Documentation/devicetree/bindings/gpio/brcm,brcmstb-gpio.txt
-
 BROADCOM KONA GPIO DRIVER
 M:	Ray Jui <rjui@broadcom.com>
 L:	bcm-kernel-feedback-list@broadcom.com
@@ -2894,19 +2871,29 @@ S:	Supported
 F:	drivers/gpio/gpio-bcm-kona.c
 F:	Documentation/devicetree/bindings/gpio/brcm,kona-gpio.txt
 
+BROADCOM NETXTREME-E ROCE DRIVER
+M:	Selvin Xavier <selvin.xavier@broadcom.com>
+M:	Devesh Sharma <devesh.sharma@broadcom.com>
+M:	Somnath Kotur <somnath.kotur@broadcom.com>
+M:	Sriharsha Basavapatna <sriharsha.basavapatna@broadcom.com>
+L:	linux-rdma@vger.kernel.org
+W:	http://www.broadcom.com
+S:	Supported
+F:	drivers/infiniband/hw/bnxt_re/
+F:	include/uapi/rdma/bnxt_re-abi.h
+
 BROADCOM NVRAM DRIVER
 M:	Rafał Miłecki <zajec5@gmail.com>
 L:	linux-mips@linux-mips.org
 S:	Maintained
 F:	drivers/firmware/broadcom/*
 
-BROADCOM STB NAND FLASH DRIVER
-M:	Brian Norris <computersforpeace@gmail.com>
-M:	Kamal Dasu <kdasu.kdev@gmail.com>
-L:	linux-mtd@lists.infradead.org
-L:	bcm-kernel-feedback-list@broadcom.com
+BROADCOM SPECIFIC AMBA DRIVER (BCMA)
+M:	Rafał Miłecki <zajec5@gmail.com>
+L:	linux-wireless@vger.kernel.org
 S:	Maintained
-F:	drivers/mtd/nand/brcmnand/
+F:	drivers/bcma/
+F:	include/linux/bcma/
 
 BROADCOM STB AVS CPUFREQ DRIVER
 M:	Markus Mayer <mmayer@broadcom.com>
@@ -2916,12 +2903,13 @@ S:	Maintained
 F:	Documentation/devicetree/bindings/cpufreq/brcm,stb-avs-cpu-freq.txt
 F:	drivers/cpufreq/brcmstb*
 
-BROADCOM SPECIFIC AMBA DRIVER (BCMA)
-M:	Rafał Miłecki <zajec5@gmail.com>
-L:	linux-wireless@vger.kernel.org
+BROADCOM STB NAND FLASH DRIVER
+M:	Brian Norris <computersforpeace@gmail.com>
+M:	Kamal Dasu <kdasu.kdev@gmail.com>
+L:	linux-mtd@lists.infradead.org
+L:	bcm-kernel-feedback-list@broadcom.com
 S:	Maintained
-F:	drivers/bcma/
-F:	include/linux/bcma/
+F:	drivers/mtd/nand/brcmnand/
 
 BROADCOM SYSTEMPORT ETHERNET DRIVER
 M:	Florian Fainelli <f.fainelli@gmail.com>
@@ -2929,16 +2917,13 @@ L:	netdev@vger.kernel.org
 S:	Supported
 F:	drivers/net/ethernet/broadcom/bcmsysport.*
 
-BROADCOM NETXTREME-E ROCE DRIVER
-M:	Selvin Xavier <selvin.xavier@broadcom.com>
-M:	Devesh Sharma <devesh.sharma@broadcom.com>
-M:	Somnath Kotur <somnath.kotur@broadcom.com>
-M:	Sriharsha Basavapatna <sriharsha.basavapatna@broadcom.com>
-L:	linux-rdma@vger.kernel.org
-W:	http://www.broadcom.com
+BROADCOM TG3 GIGABIT ETHERNET DRIVER
+M:	Siva Reddy Kallam <siva.kallam@broadcom.com>
+M:	Prashant Sreedharan <prashant@broadcom.com>
+M:	Michael Chan <mchan@broadcom.com>
+L:	netdev@vger.kernel.org
 S:	Supported
-F:	drivers/infiniband/hw/bnxt_re/
-F:	include/uapi/rdma/bnxt_re-abi.h
+F:	drivers/net/ethernet/broadcom/tg3.*
 
 BROCADE BFA FC SCSI DRIVER
 M:	Anil Gurumurthy <anil.gurumurthy@qlogic.com>
@@ -3001,6 +2986,15 @@ S:	Odd fixes
 F:	Documentation/media/v4l-drivers/bttv*
 F:	drivers/media/pci/bt8xx/bttv*
 
+BUS FREQUENCY DRIVER FOR SAMSUNG EXYNOS
+M:	Chanwoo Choi <cw00.choi@samsung.com>
+L:	linux-pm@vger.kernel.org
+L:	linux-samsung-soc@vger.kernel.org
+T:	git git://git.kernel.org/pub/scm/linux/kernel/git/mzx/devfreq.git
+S:	Maintained
+F:	drivers/devfreq/exynos-bus.c
+F:	Documentation/devicetree/bindings/devfreq/exynos-bus.txt
+
 BUSLOGIC SCSI DRIVER
 M:	Khalid Aziz <khalid@gonehiking.org>
 L:	linux-scsi@vger.kernel.org
@@ -3075,6 +3069,21 @@ F:	arch/x86/kernel/tce_64.c
 F:	arch/x86/include/asm/calgary.h
 F:	arch/x86/include/asm/tce.h
 
+CAN NETWORK DRIVERS
+M:	Wolfgang Grandegger <wg@grandegger.com>
+M:	Marc Kleine-Budde <mkl@pengutronix.de>
+L:	linux-can@vger.kernel.org
+W:	https://github.com/linux-can
+T:	git git://git.kernel.org/pub/scm/linux/kernel/git/mkl/linux-can.git
+T:	git git://git.kernel.org/pub/scm/linux/kernel/git/mkl/linux-can-next.git
+S:	Maintained
+F:	Documentation/devicetree/bindings/net/can/
+F:	drivers/net/can/
+F:	include/linux/can/dev.h
+F:	include/linux/can/platform/
+F:	include/uapi/linux/can/error.h
+F:	include/uapi/linux/can/netlink.h
+
 CAN NETWORK LAYER
 M:	Oliver Hartkopp <socketcan@hartkopp.net>
 M:	Marc Kleine-Budde <mkl@pengutronix.de>
@@ -3091,21 +3100,6 @@ F:	include/uapi/linux/can/bcm.h
 F:	include/uapi/linux/can/raw.h
 F:	include/uapi/linux/can/gw.h
 
-CAN NETWORK DRIVERS
-M:	Wolfgang Grandegger <wg@grandegger.com>
-M:	Marc Kleine-Budde <mkl@pengutronix.de>
-L:	linux-can@vger.kernel.org
-W:	https://github.com/linux-can
-T:	git git://git.kernel.org/pub/scm/linux/kernel/git/mkl/linux-can.git
-T:	git git://git.kernel.org/pub/scm/linux/kernel/git/mkl/linux-can-next.git
-S:	Maintained
-F:	Documentation/devicetree/bindings/net/can/
-F:	drivers/net/can/
-F:	include/linux/can/dev.h
-F:	include/linux/can/platform/
-F:	include/uapi/linux/can/error.h
-F:	include/uapi/linux/can/netlink.h
-
 CAPABILITIES
 M:	Serge Hallyn <serge@hallyn.com>
 L:	linux-security-module@vger.kernel.org
@@ -3120,12 +3114,12 @@ M:	Kevin Tsai <ktsai@capellamicro.com>
 S:	Maintained
 F:	drivers/iio/light/cm*
 
-CAVIUM THUNDERX2 ARM64 SOC
-M:	Jayachandran C <jnair@caviumnetworks.com>
-L:	linux-arm-kernel@lists.infradead.org (moderated for non-subscribers)
+CARL9170 LINUX COMMUNITY WIRELESS DRIVER
+M:	Christian Lamparter <chunkeey@googlemail.com>
+L:	linux-wireless@vger.kernel.org
+W:	http://wireless.kernel.org/en/users/Drivers/carl9170
 S:	Maintained
-F:	arch/arm64/boot/dts/cavium/thunder2-99xx*
-F:	Documentation/devicetree/bindings/arm/cavium-thunder2.txt
+F:	drivers/net/wireless/ath/carl9170/
 
 CAVIUM I2C DRIVER
 M:	Jan Glauber <jglauber@cavium.com>
@@ -3135,6 +3129,16 @@ S:	Supported
 F:	drivers/i2c/busses/i2c-octeon*
 F:	drivers/i2c/busses/i2c-thunderx*
 
+CAVIUM LIQUIDIO NETWORK DRIVER
+M:	Derek Chickles <derek.chickles@caviumnetworks.com>
+M:	Satanand Burla <satananda.burla@caviumnetworks.com>
+M:	Felix Manlunas <felix.manlunas@caviumnetworks.com>
+M:	Raghu Vatsavayi <raghu.vatsavayi@caviumnetworks.com>
+L:	netdev@vger.kernel.org
+W:	http://www.cavium.com
+S:	Supported
+F:	drivers/net/ethernet/cavium/liquidio/
+
 CAVIUM MMC DRIVER
 M:	Jan Glauber <jglauber@cavium.com>
 M:	David Daney <david.daney@cavium.com>
@@ -3143,16 +3147,6 @@ W:	http://www.cavium.com
 S:	Supported
 F:	drivers/mmc/host/cavium*
 
-CAVIUM LIQUIDIO NETWORK DRIVER
-M:     Derek Chickles <derek.chickles@caviumnetworks.com>
-M:     Satanand Burla <satananda.burla@caviumnetworks.com>
-M:     Felix Manlunas <felix.manlunas@caviumnetworks.com>
-M:     Raghu Vatsavayi <raghu.vatsavayi@caviumnetworks.com>
-L:     netdev@vger.kernel.org
-W:     http://www.cavium.com
-S:     Supported
-F:     drivers/net/ethernet/cavium/liquidio/
-
 CAVIUM OCTEON-TX CRYPTO DRIVER
 M:	George Cherian <george.cherian@cavium.com>
 L:	linux-crypto@vger.kernel.org
@@ -3160,6 +3154,13 @@ W:	http://www.cavium.com
 S:	Supported
 F:	drivers/crypto/cavium/cpt/
 
+CAVIUM THUNDERX2 ARM64 SOC
+M:	Jayachandran C <jnair@caviumnetworks.com>
+L:	linux-arm-kernel@lists.infradead.org (moderated for non-subscribers)
+S:	Maintained
+F:	arch/arm64/boot/dts/cavium/thunder2-99xx*
+F:	Documentation/devicetree/bindings/arm/cavium-thunder2.txt
+
 CC2520 IEEE-802.15.4 RADIO DRIVER
 M:	Varka Bhadram <varkabhadram@gmail.com>
 L:	linux-wpan@vger.kernel.org
@@ -3248,12 +3249,6 @@ F:	drivers/usb/host/whci/
 F:	drivers/usb/wusbcore/
 F:	include/linux/usb/wusb*
 
-HT16K33 LED CONTROLLER DRIVER
-M:	Robin van der Gracht <robin@protonic.nl>
-S:	Maintained
-F:	drivers/auxdisplay/ht16k33.c
-F:	Documentation/devicetree/bindings/display/ht16k33.txt
-
 CFAG12864B LCD DRIVER
 M:	Miguel Ojeda Sandonis <miguel.ojeda.sandonis@gmail.com>
 W:	http://miguelojeda.es/auxdisplay.htm
@@ -3325,6 +3320,34 @@ S:	Maintained
 T:	git git://git.kernel.org/pub/scm/linux/kernel/git/bleung/chrome-platform.git
 F:	drivers/platform/chrome/
 
+CIRRUS LOGIC AUDIO CODEC DRIVERS
+M:	Brian Austin <brian.austin@cirrus.com>
+M:	Paul Handrigan <Paul.Handrigan@cirrus.com>
+L:	alsa-devel@alsa-project.org (moderated for non-subscribers)
+S:	Maintained
+F:	sound/soc/codecs/cs*
+
+CIRRUS LOGIC EP93XX ETHERNET DRIVER
+M:	Hartley Sweeten <hsweeten@visionengravers.com>
+L:	netdev@vger.kernel.org
+S:	Maintained
+F:	drivers/net/ethernet/cirrus/ep93xx_eth.c
+
+CISCO FCOE HBA DRIVER
+M:	Satish Kharat <satishkh@cisco.com>
+M:	Sesidhar Baddela <sebaddel@cisco.com>
+M:	Karan Tilak Kumar <kartilak@cisco.com>
+L:	linux-scsi@vger.kernel.org
+S:	Supported
+F:	drivers/scsi/fnic/
+
+CISCO SCSI HBA DRIVER
+M:	Karan Tilak Kumar <kartilak@cisco.com>
+M:	Sesidhar Baddela <sebaddel@cisco.com>
+L:	linux-scsi@vger.kernel.org
+S:	Supported
+F:	drivers/scsi/snic/
+
 CISCO VIC ETHERNET NIC DRIVER
 M:	Christian Benvenuti <benve@cisco.com>
 M:	Govindarajulu Varadarajan <_govind@gmx.com>
@@ -3338,19 +3361,6 @@ M:	Dave Goodell <dgoodell@cisco.com>
 S:	Supported
 F:	drivers/infiniband/hw/usnic/
 
-CIRRUS LOGIC EP93XX ETHERNET DRIVER
-M:	Hartley Sweeten <hsweeten@visionengravers.com>
-L:	netdev@vger.kernel.org
-S:	Maintained
-F:	drivers/net/ethernet/cirrus/ep93xx_eth.c
-
-CIRRUS LOGIC AUDIO CODEC DRIVERS
-M:	Brian Austin <brian.austin@cirrus.com>
-M:	Paul Handrigan <Paul.Handrigan@cirrus.com>
-L:	alsa-devel@alsa-project.org (moderated for non-subscribers)
-S:	Maintained
-F:	sound/soc/codecs/cs*
-
 CLEANCACHE API
 M:	Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
 L:	linux-kernel@vger.kernel.org
@@ -3372,21 +3382,6 @@ T:	git git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git timers/core
 S:	Supported
 F:	drivers/clocksource
 
-CISCO FCOE HBA DRIVER
-M:	Satish Kharat <satishkh@cisco.com>
-M:	Sesidhar Baddela <sebaddel@cisco.com>
-M:	Karan Tilak Kumar <kartilak@cisco.com>
-L:	linux-scsi@vger.kernel.org
-S:	Supported
-F:	drivers/scsi/fnic/
-
-CISCO SCSI HBA DRIVER
-M:	Karan Tilak Kumar <kartilak@cisco.com>
-M:	Sesidhar Baddela <sebaddel@cisco.com>
-L:	linux-scsi@vger.kernel.org
-S:	Supported
-F:	drivers/scsi/snic/
-
 CMPC ACPI DRIVER
 M:	Thadeu Lima de Souza Cascardo <cascardo@holoscopio.com>
 M:	Daniel Oliveira Nascimento <don@syst.com.br>
@@ -3462,17 +3457,17 @@ L:	linux-pci@vger.kernel.org
 S:	Maintained
 F:	drivers/pci/hotplug/cpci_hotplug*
 
-COMPACTPCI HOTPLUG ZIATECH ZT5550 DRIVER
+COMPACTPCI HOTPLUG GENERIC DRIVER
 M:	Scott Murray <scott@spiteful.org>
 L:	linux-pci@vger.kernel.org
 S:	Maintained
-F:	drivers/pci/hotplug/cpcihp_zt5550.*
+F:	drivers/pci/hotplug/cpcihp_generic.c
 
-COMPACTPCI HOTPLUG GENERIC DRIVER
+COMPACTPCI HOTPLUG ZIATECH ZT5550 DRIVER
 M:	Scott Murray <scott@spiteful.org>
 L:	linux-pci@vger.kernel.org
 S:	Maintained
-F:	drivers/pci/hotplug/cpcihp_generic.c
+F:	drivers/pci/hotplug/cpcihp_zt5550.*
 
 COMPAL LAPTOP SUPPORT
 M:	Cezary Jackiewicz <cezary.jackiewicz@gmail.com>
@@ -3575,6 +3570,18 @@ F:	drivers/cpufreq/arm_big_little.h
 F:	drivers/cpufreq/arm_big_little.c
 F:	drivers/cpufreq/arm_big_little_dt.c
 
+CPU POWER MONITORING SUBSYSTEM
+M:	Thomas Renninger <trenn@suse.com>
+L:	linux-pm@vger.kernel.org
+S:	Maintained
+F:	tools/power/cpupower/
+
+CPUID/MSR DRIVER
+M:	"H. Peter Anvin" <hpa@zytor.com>
+S:	Maintained
+F:	arch/x86/kernel/cpuid.c
+F:	arch/x86/kernel/msr.c
+
 CPUIDLE DRIVER - ARM BIG LITTLE
 M:	Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
 M:	Daniel Lezcano <daniel.lezcano@linaro.org>
@@ -3604,18 +3611,6 @@ B:	https://bugzilla.kernel.org
 F:	drivers/cpuidle/*
 F:	include/linux/cpuidle.h
 
-CPUID/MSR DRIVER
-M:	"H. Peter Anvin" <hpa@zytor.com>
-S:	Maintained
-F:	arch/x86/kernel/cpuid.c
-F:	arch/x86/kernel/msr.c
-
-CPU POWER MONITORING SUBSYSTEM
-M:	Thomas Renninger <trenn@suse.com>
-L:	linux-pm@vger.kernel.org
-S:	Maintained
-F:	tools/power/cpupower/
-
 CRAMFS FILESYSTEM
 W:	http://sourceforge.net/projects/cramfs/
 S:	Orphan / Obsolete
@@ -3745,6 +3740,13 @@ S:	Supported
 F:	drivers/infiniband/hw/cxgb3/
 F:	include/uapi/rdma/cxgb3-abi.h
 
+CXGB4 CRYPTO DRIVER (chcr)
+M:	Harsh Jain <harsh@chelsio.com>
+L:	linux-crypto@vger.kernel.org
+W:	http://www.chelsio.com
+S:	Supported
+F:	drivers/crypto/chelsio
+
 CXGB4 ETHERNET DRIVER (CXGB4)
 M:	Ganesh Goudar <ganeshgr@chelsio.com>
 L:	netdev@vger.kernel.org
@@ -3767,13 +3769,6 @@ S:	Supported
 F:	drivers/infiniband/hw/cxgb4/
 F:	include/uapi/rdma/cxgb4-abi.h
 
-CXGB4 CRYPTO DRIVER (chcr)
-M:	Harsh Jain <harsh@chelsio.com>
-L:	linux-crypto@vger.kernel.org
-W:	http://www.chelsio.com
-S:	Supported
-F:	drivers/crypto/chelsio
-
 CXGB4VF ETHERNET DRIVER (CXGB4VF)
 M:	Casey Leedom <leedom@chelsio.com>
 L:	netdev@vger.kernel.org
@@ -3803,14 +3798,6 @@ F:	drivers/scsi/cxlflash/
 F:	include/uapi/scsi/cxlflash_ioctls.h
 F:	Documentation/powerpc/cxlflash.txt
 
-STMMAC ETHERNET DRIVER
-M:	Giuseppe Cavallaro <peppe.cavallaro@st.com>
-M:	Alexandre Torgue <alexandre.torgue@st.com>
-L:	netdev@vger.kernel.org
-W:	http://www.stlinux.com
-S:	Supported
-F:	drivers/net/ethernet/stmicro/stmmac/
-
 CYBERPRO FB DRIVER
 M:	Russell King <linux@armlinux.org.uk>
 L:	linux-arm-kernel@lists.infradead.org (moderated for non-subscribers)
@@ -3934,15 +3921,15 @@ L:	platform-driver-x86@vger.kernel.org
 S:	Maintained
 F:	drivers/platform/x86/dell-laptop.c
 
-DELL LAPTOP RBTN DRIVER
+DELL LAPTOP FREEFALL DRIVER
 M:	Pali Rohár <pali.rohar@gmail.com>
 S:	Maintained
-F:	drivers/platform/x86/dell-rbtn.*
+F:	drivers/platform/x86/dell-smo8800.c
 
-DELL LAPTOP FREEFALL DRIVER
+DELL LAPTOP RBTN DRIVER
 M:	Pali Rohár <pali.rohar@gmail.com>
 S:	Maintained
-F:	drivers/platform/x86/dell-smo8800.c
+F:	drivers/platform/x86/dell-rbtn.*
 
 DELL LAPTOP SMM DRIVER
 M:	Pali Rohár <pali.rohar@gmail.com>
@@ -3962,6 +3949,20 @@ M:	Pali Rohár <pali.rohar@gmail.com>
 S:	Maintained
 F:	drivers/platform/x86/dell-wmi.c
 
+DELTA ST MEDIA DRIVER
+M:	Hugues Fruchet <hugues.fruchet@st.com>
+L:	linux-media@vger.kernel.org
+T:	git git://linuxtv.org/media_tree.git
+W:	https://linuxtv.org
+S:	Supported
+F:	drivers/media/platform/sti/delta
+
+DENALI NAND DRIVER
+M:	Masahiro Yamada <yamada.masahiro@socionext.com>
+L:	linux-mtd@lists.infradead.org
+S:	Supported
+F:	drivers/mtd/nand/denali*
+
 DESIGNWARE USB2 DRD IP DRIVER
 M:	John Youn <johnyoun@synopsys.com>
 L:	linux-usb@vger.kernel.org
@@ -4010,15 +4011,6 @@ F:	drivers/devfreq/devfreq-event.c
 F:	include/linux/devfreq-event.h
 F:	Documentation/devicetree/bindings/devfreq/event/
 
-BUS FREQUENCY DRIVER FOR SAMSUNG EXYNOS
-M:	Chanwoo Choi <cw00.choi@samsung.com>
-L:	linux-pm@vger.kernel.org
-L:	linux-samsung-soc@vger.kernel.org
-T:	git git://git.kernel.org/pub/scm/linux/kernel/git/mzx/devfreq.git
-S:	Maintained
-F:	drivers/devfreq/exynos-bus.c
-F:	Documentation/devicetree/bindings/devfreq/exynos-bus.txt
-
 DEVICE NUMBER REGISTRY
 M:	Torben Mathiasen <device@lanana.org>
 W:	http://lanana.org/docs/device-list/index.html
@@ -4168,20 +4160,6 @@ F:	include/linux/*fence.h
 F:	Documentation/driver-api/dma-buf.rst
 T:	git git://anongit.freedesktop.org/drm/drm-misc
 
-SYNC FILE FRAMEWORK
-M:	Sumit Semwal <sumit.semwal@linaro.org>
-R:	Gustavo Padovan <gustavo@padovan.org>
-S:	Maintained
-L:	linux-media@vger.kernel.org
-L:	dri-devel@lists.freedesktop.org
-F:	drivers/dma-buf/sync_*
-F:	drivers/dma-buf/dma-fence*
-F:	drivers/dma-buf/sw_sync.c
-F:	include/linux/sync_file.h
-F:	include/uapi/linux/sync_file.h
-F:	Documentation/sync_file.txt
-T:	git git://anongit.freedesktop.org/drm/drm-misc
-
 DMA GENERIC OFFLOAD ENGINE SUBSYSTEM
 M:	Vinod Koul <vinod.koul@intel.com>
 L:	dmaengine@vger.kernel.org
@@ -4193,6 +4171,21 @@ F:	Documentation/devicetree/bindings/dma/
 F:	Documentation/dmaengine/
 T:	git git://git.infradead.org/users/vkoul/slave-dma.git
 
+DMA MAPPING HELPERS
+M:	Christoph Hellwig <hch@lst.de>
+M:	Marek Szyprowski <m.szyprowski@samsung.com>
+R:	Robin Murphy <robin.murphy@arm.com>
+L:	linux-kernel@vger.kernel.org
+T:	git git://git.infradead.org/users/hch/dma-mapping.git
+W:	http://git.infradead.org/users/hch/dma-mapping.git
+S:	Supported
+F:	lib/dma-debug.c
+F:	lib/dma-noop.c
+F:	lib/dma-virt.c
+F:	drivers/base/dma-mapping.c
+F:	drivers/base/dma-coherent.c
+F:	include/linux/dma-mapping.h
+
 DME1737 HARDWARE MONITOR DRIVER
 M:	Juerg Haefliger <juergh@gmail.com>
 L:	linux-hwmon@vger.kernel.org
@@ -4223,6 +4216,13 @@ X:	Documentation/spi
 X:	Documentation/media
 T:	git git://git.lwn.net/linux.git docs-next
 
+DONGWOON DW9714 LENS VOICE COIL DRIVER
+M:	Sakari Ailus <sakari.ailus@linux.intel.com>
+L:	linux-media@vger.kernel.org
+T:	git git://linuxtv.org/media_tree.git
+S:	Maintained
+F:	drivers/media/i2c/dw9714.c
+
 DOUBLETALK DRIVER
 M:	"James R. Van Zandt" <jrv@vanzandt.mv.com>
 L:	blinux-list@redhat.com
@@ -4274,36 +4274,13 @@ F:	include/linux/debugfs.h
 F:	include/linux/kobj*
 F:	lib/kobj*
 
-DRM DRIVERS
-M:	David Airlie <airlied@linux.ie>
-L:	dri-devel@lists.freedesktop.org
-T:	git git://people.freedesktop.org/~airlied/linux
-B:	https://bugs.freedesktop.org/
-C:	irc://chat.freenode.net/dri-devel
-S:	Maintained
-F:	drivers/gpu/drm/
-F:	drivers/gpu/vga/
-F:	Documentation/devicetree/bindings/display/
-F:	Documentation/devicetree/bindings/gpu/
-F:	Documentation/devicetree/bindings/video/
-F:	Documentation/gpu/
-F:	include/drm/
-F:	include/uapi/drm/
-F:	include/linux/vga*
-
-DRM DRIVERS AND MISC GPU PATCHES
-M:	Daniel Vetter <daniel.vetter@intel.com>
-M:	Jani Nikula <jani.nikula@linux.intel.com>
-M:	Sean Paul <seanpaul@chromium.org>
-W:	https://01.org/linuxgraphics/gfx-docs/maintainer-tools/drm-misc.html
+DRIVERS FOR ADAPTIVE VOLTAGE SCALING (AVS)
+M:	Kevin Hilman <khilman@kernel.org>
+M:	Nishanth Menon <nm@ti.com>
 S:	Maintained
-T:	git git://anongit.freedesktop.org/drm/drm-misc
-F:	Documentation/gpu/
-F:	drivers/gpu/vga/
-F:	drivers/gpu/drm/*
-F:	include/drm/drm*
-F:	include/uapi/drm/drm*
-F:	include/linux/vga*
+F:	drivers/power/avs/
+F:	include/linux/power/smartreflex.h
+L:	linux-pm@vger.kernel.org
 
 DRM DRIVER FOR ARM PL111 CLCD
 M:	Eric Anholt <eric@anholt.net>
@@ -4316,14 +4293,6 @@ M:	Dave Airlie <airlied@redhat.com>
 S:	Odd Fixes
 F:	drivers/gpu/drm/ast/
 
-DRM DRIVERS FOR BRIDGE CHIPS
-M:	Archit Taneja <architt@codeaurora.org>
-M:	Andrzej Hajda <a.hajda@samsung.com>
-R:	Laurent Pinchart <Laurent.pinchart@ideasonboard.com>
-S:	Maintained
-T:	git git://anongit.freedesktop.org/drm/drm-misc
-F:	drivers/gpu/drm/bridge/
-
 DRM DRIVER FOR BOCHS VIRTUAL GPU
 M:	Gerd Hoffmann <kraxel@redhat.com>
 L:	virtualization@lists.linux-foundation.org
@@ -4331,6 +4300,47 @@ T:	git git://anongit.freedesktop.org/drm/drm-misc
 S:	Maintained
 F:	drivers/gpu/drm/bochs/
 
+DRM DRIVER FOR INTEL I810 VIDEO CARDS
+S:	Orphan / Obsolete
+F:	drivers/gpu/drm/i810/
+F:	include/uapi/drm/i810_drm.h
+
+DRM DRIVER FOR MATROX G200/G400 GRAPHICS CARDS
+S:	Orphan / Obsolete
+F:	drivers/gpu/drm/mga/
+F:	include/uapi/drm/mga_drm.h
+
+DRM DRIVER FOR MGA G200 SERVER GRAPHICS CHIPS
+M:	Dave Airlie <airlied@redhat.com>
+S:	Odd Fixes
+F:	drivers/gpu/drm/mgag200/
+
+DRM DRIVER FOR MI0283QT
+M:	Noralf Trønnes <noralf@tronnes.org>
+S:	Maintained
+F:	drivers/gpu/drm/tinydrm/mi0283qt.c
+F:	Documentation/devicetree/bindings/display/multi-inno,mi0283qt.txt
+
+DRM DRIVER FOR MSM ADRENO GPU
+M:	Rob Clark <robdclark@gmail.com>
+L:	linux-arm-msm@vger.kernel.org
+L:	dri-devel@lists.freedesktop.org
+L:	freedreno@lists.freedesktop.org
+T:	git git://people.freedesktop.org/~robclark/linux
+S:	Maintained
+F:	drivers/gpu/drm/msm/
+F:	include/uapi/drm/msm_drm.h
+F:	Documentation/devicetree/bindings/display/msm/
+
+DRM DRIVER FOR NVIDIA GEFORCE/QUADRO GPUS
+M:	Ben Skeggs <bskeggs@redhat.com>
+L:	dri-devel@lists.freedesktop.org
+L:	nouveau@lists.freedesktop.org
+T:	git git://github.com/skeggsb/linux
+S:	Supported
+F:	drivers/gpu/drm/nouveau/
+F:	include/uapi/drm/nouveau_drm.h
+
 DRM DRIVER FOR QEMU'S CIRRUS DEVICE
 M:	Dave Airlie <airlied@redhat.com>
 M:	Gerd Hoffmann <kraxel@redhat.com>
@@ -4340,59 +4350,80 @@ S:	Obsolete
 W:	https://www.kraxel.org/blog/2014/10/qemu-using-cirrus-considered-harmful/
 F:	drivers/gpu/drm/cirrus/
 
-RADEON and AMDGPU DRM DRIVERS
-M:	Alex Deucher <alexander.deucher@amd.com>
-M:	Christian König <christian.koenig@amd.com>
-L:	amd-gfx@lists.freedesktop.org
-T:	git git://people.freedesktop.org/~agd5f/linux
+DRM DRIVER FOR QXL VIRTUAL GPU
+M:	Dave Airlie <airlied@redhat.com>
+M:	Gerd Hoffmann <kraxel@redhat.com>
+L:	virtualization@lists.linux-foundation.org
+T:	git git://anongit.freedesktop.org/drm/drm-misc
+S:	Maintained
+F:	drivers/gpu/drm/qxl/
+F:	include/uapi/drm/qxl_drm.h
+
+DRM DRIVER FOR RAGE 128 VIDEO CARDS
+S:	Orphan / Obsolete
+F:	drivers/gpu/drm/r128/
+F:	include/uapi/drm/r128_drm.h
+
+DRM DRIVER FOR SAVAGE VIDEO CARDS
+S:	Orphan / Obsolete
+F:	drivers/gpu/drm/savage/
+F:	include/uapi/drm/savage_drm.h
+
+DRM DRIVER FOR SIS VIDEO CARDS
+S:	Orphan / Obsolete
+F:	drivers/gpu/drm/sis/
+F:	include/uapi/drm/sis_drm.h
+
+DRM DRIVER FOR TDFX VIDEO CARDS
+S:	Orphan / Obsolete
+F:	drivers/gpu/drm/tdfx/
+
+DRM DRIVER FOR USB DISPLAYLINK VIDEO ADAPTERS
+M:	Dave Airlie <airlied@redhat.com>
+S:	Odd Fixes
+F:	drivers/gpu/drm/udl/
+
+DRM DRIVER FOR VMWARE VIRTUAL GPU
+M:	"VMware Graphics" <linux-graphics-maintainer@vmware.com>
+M:	Sinclair Yeh <syeh@vmware.com>
+M:	Thomas Hellstrom <thellstrom@vmware.com>
+L:	dri-devel@lists.freedesktop.org
+T:	git git://people.freedesktop.org/~syeh/repos_linux
+T:	git git://people.freedesktop.org/~thomash/linux
 S:	Supported
-F:	drivers/gpu/drm/radeon/
-F:	include/uapi/drm/radeon_drm.h
-F:	drivers/gpu/drm/amd/
-F:	include/uapi/drm/amdgpu_drm.h
+F:	drivers/gpu/drm/vmwgfx/
+F:	include/uapi/drm/vmwgfx_drm.h
 
-DRM PANEL DRIVERS
-M:	Thierry Reding <thierry.reding@gmail.com>
+DRM DRIVERS
+M:	David Airlie <airlied@linux.ie>
 L:	dri-devel@lists.freedesktop.org
-T:	git git://anongit.freedesktop.org/tegra/linux.git
+T:	git git://people.freedesktop.org/~airlied/linux
+B:	https://bugs.freedesktop.org/
+C:	irc://chat.freenode.net/dri-devel
 S:	Maintained
-F:	drivers/gpu/drm/drm_panel.c
-F:	drivers/gpu/drm/panel/
-F:	include/drm/drm_panel.h
-F:	Documentation/devicetree/bindings/display/panel/
+F:	drivers/gpu/drm/
+F:	drivers/gpu/vga/
+F:	Documentation/devicetree/bindings/display/
+F:	Documentation/devicetree/bindings/gpu/
+F:	Documentation/devicetree/bindings/video/
+F:	Documentation/gpu/
+F:	include/drm/
+F:	include/uapi/drm/
+F:	include/linux/vga*
 
-INTEL DRM DRIVERS (excluding Poulsbo, Moorestown and derivative chipsets)
+DRM DRIVERS AND MISC GPU PATCHES
 M:	Daniel Vetter <daniel.vetter@intel.com>
 M:	Jani Nikula <jani.nikula@linux.intel.com>
-L:	intel-gfx@lists.freedesktop.org
-W:	https://01.org/linuxgraphics/
-B:	https://01.org/linuxgraphics/documentation/how-report-bugs
-C:	irc://chat.freenode.net/intel-gfx
-Q:	http://patchwork.freedesktop.org/project/intel-gfx/
-T:	git git://anongit.freedesktop.org/drm-intel
-S:	Supported
-F:	drivers/gpu/drm/i915/
-F:	include/drm/i915*
-F:	include/uapi/drm/i915_drm.h
-F:	Documentation/gpu/i915.rst
-
-INTEL GVT-g DRIVERS (Intel GPU Virtualization)
-M:      Zhenyu Wang <zhenyuw@linux.intel.com>
-M:      Zhi Wang <zhi.a.wang@intel.com>
-L:      intel-gvt-dev@lists.freedesktop.org
-L:      intel-gfx@lists.freedesktop.org
-W:      https://01.org/igvt-g
-T:      git https://github.com/01org/gvt-linux.git
-S:      Supported
-F:      drivers/gpu/drm/i915/gvt/
-
-DRM DRIVERS FOR ATMEL HLCDC
-M:	Boris Brezillon <boris.brezillon@free-electrons.com>
-L:	dri-devel@lists.freedesktop.org
-S:	Supported
-F:	drivers/gpu/drm/atmel-hlcdc/
-F:	Documentation/devicetree/bindings/drm/atmel/
+M:	Sean Paul <seanpaul@chromium.org>
+W:	https://01.org/linuxgraphics/gfx-docs/maintainer-tools/drm-misc.html
+S:	Maintained
 T:	git git://anongit.freedesktop.org/drm/drm-misc
+F:	Documentation/gpu/
+F:	drivers/gpu/vga/
+F:	drivers/gpu/drm/*
+F:	include/drm/drm*
+F:	include/uapi/drm/drm*
+F:	include/linux/vga*
 
 DRM DRIVERS FOR ALLWINNER A10
 M:	Maxime Ripard  <maxime.ripard@free-electrons.com>
@@ -4414,6 +4445,22 @@ F:	Documentation/devicetree/bindings/display/amlogic,meson-dw-hdmi.txt
 F:	Documentation/gpu/meson.rst
 T:	git git://anongit.freedesktop.org/drm/drm-misc
 
+DRM DRIVERS FOR ATMEL HLCDC
+M:	Boris Brezillon <boris.brezillon@free-electrons.com>
+L:	dri-devel@lists.freedesktop.org
+S:	Supported
+F:	drivers/gpu/drm/atmel-hlcdc/
+F:	Documentation/devicetree/bindings/drm/atmel/
+T:	git git://anongit.freedesktop.org/drm/drm-misc
+
+DRM DRIVERS FOR BRIDGE CHIPS
+M:	Archit Taneja <architt@codeaurora.org>
+M:	Andrzej Hajda <a.hajda@samsung.com>
+R:	Laurent Pinchart <Laurent.pinchart@ideasonboard.com>
+S:	Maintained
+T:	git git://anongit.freedesktop.org/drm/drm-misc
+F:	drivers/gpu/drm/bridge/
+
 DRM DRIVERS FOR EXYNOS
 M:	Inki Dae <inki.dae@samsung.com>
 M:	Joonyoung Shim <jy0922.shim@samsung.com>
@@ -4462,11 +4509,6 @@ S:	Maintained
 F:	drivers/gpu/drm/hisilicon/
 F:	Documentation/devicetree/bindings/display/hisilicon/
 
-DRM DRIVER FOR INTEL I810 VIDEO CARDS
-S:	Orphan / Obsolete
-F:	drivers/gpu/drm/i810/
-F:	include/uapi/drm/i810_drm.h
-
 DRM DRIVERS FOR MEDIATEK
 M:	CK Hu <ck.hu@mediatek.com>
 M:	Philipp Zabel <p.zabel@pengutronix.de>
@@ -4475,32 +4517,6 @@ S:	Supported
 F:	drivers/gpu/drm/mediatek/
 F:	Documentation/devicetree/bindings/display/mediatek/
 
-DRM DRIVER FOR MI0283QT
-M:	Noralf Trønnes <noralf@tronnes.org>
-S:	Maintained
-F:	drivers/gpu/drm/tinydrm/mi0283qt.c
-F:	Documentation/devicetree/bindings/display/multi-inno,mi0283qt.txt
-
-DRM DRIVER FOR MSM ADRENO GPU
-M:	Rob Clark <robdclark@gmail.com>
-L:	linux-arm-msm@vger.kernel.org
-L:	dri-devel@lists.freedesktop.org
-L:	freedreno@lists.freedesktop.org
-T:	git git://people.freedesktop.org/~robclark/linux
-S:	Maintained
-F:	drivers/gpu/drm/msm/
-F:	include/uapi/drm/msm_drm.h
-F:	Documentation/devicetree/bindings/display/msm/
-
-DRM DRIVER FOR NVIDIA GEFORCE/QUADRO GPUS
-M:	Ben Skeggs <bskeggs@redhat.com>
-L:	dri-devel@lists.freedesktop.org
-L:	nouveau@lists.freedesktop.org
-T:	git git://github.com/skeggsb/linux
-S:	Supported
-F:	drivers/gpu/drm/nouveau/
-F:	include/uapi/drm/nouveau_drm.h
-
 DRM DRIVERS FOR NVIDIA TEGRA
 M:	Thierry Reding <thierry.reding@gmail.com>
 L:	dri-devel@lists.freedesktop.org
@@ -4513,21 +4529,6 @@ F:	include/linux/host1x.h
 F:	include/uapi/drm/tegra_drm.h
 F:	Documentation/devicetree/bindings/display/tegra/nvidia,tegra20-host1x.txt
 
-DRM DRIVER FOR MATROX G200/G400 GRAPHICS CARDS
-S:	Orphan / Obsolete
-F:	drivers/gpu/drm/mga/
-F:	include/uapi/drm/mga_drm.h
-
-DRM DRIVER FOR MGA G200 SERVER GRAPHICS CHIPS
-M:	Dave Airlie <airlied@redhat.com>
-S:	Odd Fixes
-F:	drivers/gpu/drm/mgag200/
-
-DRM DRIVER FOR RAGE 128 VIDEO CARDS
-S:	Orphan / Obsolete
-F:	drivers/gpu/drm/r128/
-F:	include/uapi/drm/r128_drm.h
-
 DRM DRIVERS FOR RENESAS
 M:	Laurent Pinchart <laurent.pinchart@ideasonboard.com>
 L:	dri-devel@lists.freedesktop.org
@@ -4540,15 +4541,6 @@ F:	include/linux/platform_data/shmob_drm.h
 F:	Documentation/devicetree/bindings/display/bridge/renesas,dw-hdmi.txt
 F:	Documentation/devicetree/bindings/display/renesas,du.txt
 
-DRM DRIVER FOR QXL VIRTUAL GPU
-M:	Dave Airlie <airlied@redhat.com>
-M:	Gerd Hoffmann <kraxel@redhat.com>
-L:	virtualization@lists.linux-foundation.org
-T:	git git://anongit.freedesktop.org/drm/drm-misc
-S:	Maintained
-F:	drivers/gpu/drm/qxl/
-F:	include/uapi/drm/qxl_drm.h
-
 DRM DRIVERS FOR ROCKCHIP
 M:	Mark Yao <mark.yao@rock-chips.com>
 L:	dri-devel@lists.freedesktop.org
@@ -4557,16 +4549,6 @@ F:	drivers/gpu/drm/rockchip/
 F:	Documentation/devicetree/bindings/display/rockchip/
 T:	git git://anongit.freedesktop.org/drm/drm-misc
 
-DRM DRIVER FOR SAVAGE VIDEO CARDS
-S:	Orphan / Obsolete
-F:	drivers/gpu/drm/savage/
-F:	include/uapi/drm/savage_drm.h
-
-DRM DRIVER FOR SIS VIDEO CARDS
-S:	Orphan / Obsolete
-F:	drivers/gpu/drm/sis/
-F:	include/uapi/drm/sis_drm.h
-
 DRM DRIVERS FOR STI
 M:	Benjamin Gaignard <benjamin.gaignard@linaro.org>
 M:	Vincent Abriou <vincent.abriou@st.com>
@@ -4587,36 +4569,20 @@ S:	Maintained
 F:	drivers/gpu/drm/stm
 F:	Documentation/devicetree/bindings/display/st,stm32-ltdc.txt
 
-DRM DRIVER FOR TDFX VIDEO CARDS
-S:	Orphan / Obsolete
-F:	drivers/gpu/drm/tdfx/
-
-DRM DRIVER FOR USB DISPLAYLINK VIDEO ADAPTERS
-M:	Dave Airlie <airlied@redhat.com>
-S:	Odd Fixes
-F:	drivers/gpu/drm/udl/
-
-DRM DRIVERS FOR VIVANTE GPU IP
-M:	Lucas Stach <l.stach@pengutronix.de>
-R:	Russell King <linux+etnaviv@armlinux.org.uk>
-R:	Christian Gmeiner <christian.gmeiner@gmail.com>
-L:	etnaviv@lists.freedesktop.org
+DRM DRIVERS FOR TI LCDC
+M:	Jyri Sarha <jsarha@ti.com>
+R:	Tomi Valkeinen <tomi.valkeinen@ti.com>
 L:	dri-devel@lists.freedesktop.org
 S:	Maintained
-F:	drivers/gpu/drm/etnaviv/
-F:	include/uapi/drm/etnaviv_drm.h
-F:	Documentation/devicetree/bindings/display/etnaviv/
+F:	drivers/gpu/drm/tilcdc/
+F:	Documentation/devicetree/bindings/display/tilcdc/
 
-DRM DRIVER FOR VMWARE VIRTUAL GPU
-M:	"VMware Graphics" <linux-graphics-maintainer@vmware.com>
-M:	Sinclair Yeh <syeh@vmware.com>
-M:	Thomas Hellstrom <thellstrom@vmware.com>
+DRM DRIVERS FOR TI OMAP
+M:	Tomi Valkeinen <tomi.valkeinen@ti.com>
 L:	dri-devel@lists.freedesktop.org
-T:	git git://people.freedesktop.org/~syeh/repos_linux
-T:	git git://people.freedesktop.org/~thomash/linux
-S:	Supported
-F:	drivers/gpu/drm/vmwgfx/
-F:	include/uapi/drm/vmwgfx_drm.h
+S:	Maintained
+F:	drivers/gpu/drm/omapdrm/
+F:	Documentation/devicetree/bindings/display/ti/
 
 DRM DRIVERS FOR VC4
 M:	Eric Anholt <eric@anholt.net>
@@ -4627,20 +4593,16 @@ F:	include/uapi/drm/vc4_drm.h
 F:	Documentation/devicetree/bindings/display/brcm,bcm-vc4.txt
 T:	git git://anongit.freedesktop.org/drm/drm-misc
 
-DRM DRIVERS FOR TI OMAP
-M:	Tomi Valkeinen <tomi.valkeinen@ti.com>
-L:	dri-devel@lists.freedesktop.org
-S:	Maintained
-F:	drivers/gpu/drm/omapdrm/
-F:	Documentation/devicetree/bindings/display/ti/
-
-DRM DRIVERS FOR TI LCDC
-M:	Jyri Sarha <jsarha@ti.com>
-R:	Tomi Valkeinen <tomi.valkeinen@ti.com>
+DRM DRIVERS FOR VIVANTE GPU IP
+M:	Lucas Stach <l.stach@pengutronix.de>
+R:	Russell King <linux+etnaviv@armlinux.org.uk>
+R:	Christian Gmeiner <christian.gmeiner@gmail.com>
+L:	etnaviv@lists.freedesktop.org
 L:	dri-devel@lists.freedesktop.org
 S:	Maintained
-F:	drivers/gpu/drm/tilcdc/
-F:	Documentation/devicetree/bindings/display/tilcdc/
+F:	drivers/gpu/drm/etnaviv/
+F:	include/uapi/drm/etnaviv_drm.h
+F:	Documentation/devicetree/bindings/display/etnaviv/
 
 DRM DRIVERS FOR ZTE ZX
 M:	Shawn Guo <shawnguo@kernel.org>
@@ -4650,6 +4612,16 @@ F:	drivers/gpu/drm/zte/
 F:	Documentation/devicetree/bindings/display/zte,vou.txt
 T:	git git://anongit.freedesktop.org/drm/drm-misc
 
+DRM PANEL DRIVERS
+M:	Thierry Reding <thierry.reding@gmail.com>
+L:	dri-devel@lists.freedesktop.org
+T:	git git://anongit.freedesktop.org/tegra/linux.git
+S:	Maintained
+F:	drivers/gpu/drm/drm_panel.c
+F:	drivers/gpu/drm/panel/
+F:	include/drm/drm_panel.h
+F:	Documentation/devicetree/bindings/display/panel/
+
 DSBR100 USB FM RADIO DRIVER
 M:	Alexey Klimov <klimov.linux@gmail.com>
 L:	linux-media@vger.kernel.org
@@ -4781,13 +4753,6 @@ S:	Maintained
 F:	drivers/media/usb/dvb-usb-v2/dvb_usb*
 F:	drivers/media/usb/dvb-usb-v2/usb_urb.c
 
-DONGWOON DW9714 LENS VOICE COIL DRIVER
-M:	Sakari Ailus <sakari.ailus@linux.intel.com>
-L:	linux-media@vger.kernel.org
-T:	git git://linuxtv.org/media_tree.git
-S:	Maintained
-F:	drivers/media/i2c/dw9714.c
-
 DYNAMIC DEBUG
 M:	Jason Baron <jbaron@akamai.com>
 S:	Maintained
@@ -4843,19 +4808,6 @@ S:	Supported
 F:	Documentation/filesystems/ecryptfs.txt
 F:	fs/ecryptfs/
 
-EDAC-CORE
-M:	Borislav Petkov <bp@alien8.de>
-M:	Mauro Carvalho Chehab <mchehab@s-opensource.com>
-M:	Mauro Carvalho Chehab <mchehab@kernel.org>
-L:	linux-edac@vger.kernel.org
-T:	git git://git.kernel.org/pub/scm/linux/kernel/git/bp/bp.git for-next
-T:	git git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-edac.git linux_next
-S:	Supported
-F:	Documentation/admin-guide/ras.rst
-F:	Documentation/driver-api/edac.rst
-F:	drivers/edac/
-F:	include/linux/edac.h
-
 EDAC-AMD64
 M:	Borislav Petkov <bp@alien8.de>
 L:	linux-edac@vger.kernel.org
@@ -4877,6 +4829,19 @@ S:	Supported
 F:	drivers/edac/octeon_edac*
 F:	drivers/edac/thunderx_edac*
 
+EDAC-CORE
+M:	Borislav Petkov <bp@alien8.de>
+M:	Mauro Carvalho Chehab <mchehab@s-opensource.com>
+M:	Mauro Carvalho Chehab <mchehab@kernel.org>
+L:	linux-edac@vger.kernel.org
+T:	git git://git.kernel.org/pub/scm/linux/kernel/git/bp/bp.git for-next
+T:	git git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-edac.git linux_next
+S:	Supported
+F:	Documentation/admin-guide/ras.rst
+F:	Documentation/driver-api/edac.rst
+F:	drivers/edac/
+F:	include/linux/edac.h
+
 EDAC-E752X
 M:	Mark Gross <mark.gross@intel.com>
 L:	linux-edac@vger.kernel.org
@@ -4901,12 +4866,6 @@ L:	linux-edac@vger.kernel.org
 S:	Maintained
 F:	drivers/edac/ghes_edac.c
 
-EDAC-I82443BXGX
-M:	Tim Small <tim@buttersideup.com>
-L:	linux-edac@vger.kernel.org
-S:	Maintained
-F:	drivers/edac/i82443bxgx_edac.c
-
 EDAC-I3000
 L:	linux-edac@vger.kernel.org
 S:	Orphan
@@ -4938,6 +4897,12 @@ L:	linux-edac@vger.kernel.org
 S:	Maintained
 F:	drivers/edac/i7core_edac.c
 
+EDAC-I82443BXGX
+M:	Tim Small <tim@buttersideup.com>
+L:	linux-edac@vger.kernel.org
+S:	Maintained
+F:	drivers/edac/i82443bxgx_edac.c
+
 EDAC-I82975X
 M:	Ranganathan Desikan <ravi@jetztechnologies.com>
 M:	"Arvind R." <arvino55@gmail.com>
@@ -4957,18 +4922,18 @@ L:	linux-edac@vger.kernel.org
 S:	Maintained
 F:	drivers/edac/mpc85xx_edac.[ch]
 
-EDAC-PND2
-M:	Tony Luck <tony.luck@intel.com>
-L:	linux-edac@vger.kernel.org
-S:	Maintained
-F:	drivers/edac/pnd2_edac.[ch]
-
 EDAC-PASEMI
 M:	Egor Martovetsky <egor@pasemi.com>
 L:	linux-edac@vger.kernel.org
 S:	Maintained
 F:	drivers/edac/pasemi_edac.c
 
+EDAC-PND2
+M:	Tony Luck <tony.luck@intel.com>
+L:	linux-edac@vger.kernel.org
+S:	Maintained
+F:	drivers/edac/pnd2_edac.[ch]
+
 EDAC-R82600
 M:	Tim Small <tim@buttersideup.com>
 L:	linux-edac@vger.kernel.org
@@ -4988,13 +4953,6 @@ L:	linux-edac@vger.kernel.org
 S:	Maintained
 F:	drivers/edac/skx_edac.c
 
-EDAC-XGENE
-APPLIED MICRO (APM) X-GENE SOC EDAC
-M:     Loc Ho <lho@apm.com>
-S:     Supported
-F:     drivers/edac/xgene_edac.c
-F:     Documentation/devicetree/bindings/edac/apm-xgene-edac.txt
-
 EDIROL UA-101/UA-1000 DRIVER
 M:	Clemens Ladisch <clemens@ladisch.de>
 L:	alsa-devel@alsa-project.org (moderated for non-subscribers)
@@ -5002,21 +4960,12 @@ T:	git git://git.alsa-project.org/alsa-kernel.git
 S:	Maintained
 F:	sound/usb/misc/ua101.c
 
-EXTENSIBLE FIRMWARE INTERFACE (EFI)
-M:	Matt Fleming <matt@codeblueprint.co.uk>
-M:	Ard Biesheuvel <ard.biesheuvel@linaro.org>
+EFI TEST DRIVER
 L:	linux-efi@vger.kernel.org
-T:	git git://git.kernel.org/pub/scm/linux/kernel/git/efi/efi.git
+M:	Ivan Hu <ivan.hu@canonical.com>
+M:	Matt Fleming <matt@codeblueprint.co.uk>
 S:	Maintained
-F:	Documentation/efi-stub.txt
-F:	arch/*/kernel/efi.c
-F:	arch/x86/boot/compressed/eboot.[ch]
-F:	arch/*/include/asm/efi.h
-F:	arch/x86/platform/efi/
-F:	drivers/firmware/efi/
-F:	include/linux/efi*.h
-F:	arch/arm/boot/compressed/efi-header.S
-F:	arch/arm64/kernel/efi-entry.S
+F:	drivers/firmware/efi/test/
 
 EFI VARIABLE FILESYSTEM
 M:	Matthew Garrett <matthew.garrett@nebula.com>
@@ -5033,13 +4982,6 @@ M:	Peter Jones <pjones@redhat.com>
 S:	Maintained
 F:	drivers/video/fbdev/efifb.c
 
-EFI TEST DRIVER
-L:	linux-efi@vger.kernel.org
-M:	Ivan Hu <ivan.hu@canonical.com>
-M:	Matt Fleming <matt@codeblueprint.co.uk>
-S:	Maintained
-F:	drivers/firmware/efi/test/
-
 EFS FILESYSTEM
 W:	http://aeschi.ch.eu.org/efs/
 S:	Orphan
@@ -5068,6 +5010,34 @@ M:	David Woodhouse <dwmw2@infradead.org>
 L:	linux-embedded@vger.kernel.org
 S:	Maintained
 
+Emulex 10Gbps iSCSI - OneConnect DRIVER
+M:	Subbu Seetharaman <subbu.seetharaman@broadcom.com>
+M:	Ketan Mukadam <ketan.mukadam@broadcom.com>
+M:	Jitendra Bhivare <jitendra.bhivare@broadcom.com>
+L:	linux-scsi@vger.kernel.org
+W:	http://www.broadcom.com
+S:	Supported
+F:	drivers/scsi/be2iscsi/
+
+Emulex 10Gbps NIC BE2, BE3-R, Lancer, Skyhawk-R DRIVER (be2net)
+M:	Sathya Perla <sathya.perla@broadcom.com>
+M:	Ajit Khaparde <ajit.khaparde@broadcom.com>
+M:	Sriharsha Basavapatna <sriharsha.basavapatna@broadcom.com>
+M:	Somnath Kotur <somnath.kotur@broadcom.com>
+L:	netdev@vger.kernel.org
+W:	http://www.emulex.com
+S:	Supported
+F:	drivers/net/ethernet/emulex/benet/
+
+EMULEX ONECONNECT ROCE DRIVER
+M:	Selvin Xavier <selvin.xavier@broadcom.com>
+M:	Devesh Sharma <devesh.sharma@broadcom.com>
+L:	linux-rdma@vger.kernel.org
+W:	http://www.broadcom.com
+S:	Odd Fixes
+F:	drivers/infiniband/hw/ocrdma/
+F:	include/uapi/rdma/ocrdma-abi.h
+
 EMULEX/BROADCOM LPFC FC/FCOE SCSI DRIVER
 M:	James Smart <james.smart@broadcom.com>
 M:	Dick Kennedy <dick.kennedy@broadcom.com>
@@ -5120,12 +5090,20 @@ M:	Andrew Lunn <andrew@lunn.ch>
 M:	Florian Fainelli <f.fainelli@gmail.com>
 L:	netdev@vger.kernel.org
 S:	Maintained
-F:	include/linux/phy.h
-F:	include/linux/phy_fixed.h
-F:	drivers/net/phy/
+F:	Documentation/ABI/testing/sysfs-bus-mdio
+F:	Documentation/devicetree/bindings/net/mdio*
 F:	Documentation/networking/phy.txt
+F:	drivers/net/phy/
 F:	drivers/of/of_mdio.c
 F:	drivers/of/of_net.c
+F:	include/linux/*mdio*.h
+F:	include/linux/of_net.h
+F:	include/linux/phy.h
+F:	include/linux/phy_fixed.h
+F:	include/linux/platform_data/mdio-gpio.h
+F:	include/trace/events/mdio.h
+F:	include/uapi/linux/mdio.h
+F:	include/uapi/linux/mii.h
 
 EXT2 FILE SYSTEM
 M:	Jan Kara <jack@suse.com>
@@ -5153,6 +5131,22 @@ L:	linux-security-module@vger.kernel.org
 S:	Supported
 F:	security/integrity/evm/
 
+EXTENSIBLE FIRMWARE INTERFACE (EFI)
+M:	Matt Fleming <matt@codeblueprint.co.uk>
+M:	Ard Biesheuvel <ard.biesheuvel@linaro.org>
+L:	linux-efi@vger.kernel.org
+T:	git git://git.kernel.org/pub/scm/linux/kernel/git/efi/efi.git
+S:	Maintained
+F:	Documentation/efi-stub.txt
+F:	arch/*/kernel/efi.c
+F:	arch/x86/boot/compressed/eboot.[ch]
+F:	arch/*/include/asm/efi.h
+F:	arch/x86/platform/efi/
+F:	drivers/firmware/efi/
+F:	include/linux/efi*.h
+F:	arch/arm/boot/compressed/efi-header.S
+F:	arch/arm64/kernel/efi-entry.S
+
 EXTERNAL CONNECTOR SUBSYSTEM (EXTCON)
 M:	MyungJoo Ham <myungjoo.ham@samsung.com>
 M:	Chanwoo Choi <cw00.choi@samsung.com>
@@ -5183,6 +5177,19 @@ S:	Supported
 F:	arch/arc/plat-eznps
 F:	arch/arc/boot/dts/eznps.dts
 
+F2FS FILE SYSTEM
+M:	Jaegeuk Kim <jaegeuk@kernel.org>
+M:	Chao Yu <yuchao0@huawei.com>
+L:	linux-f2fs-devel@lists.sourceforge.net
+W:	https://f2fs.wiki.kernel.org/
+T:	git git://git.kernel.org/pub/scm/linux/kernel/git/jaegeuk/f2fs.git
+S:	Maintained
+F:	Documentation/filesystems/f2fs.txt
+F:	Documentation/ABI/testing/sysfs-fs-f2fs
+F:	fs/f2fs/
+F:	include/linux/f2fs_fs.h
+F:	include/trace/events/f2fs.h
+
 F71805F HARDWARE MONITORING DRIVER
 M:	Jean Delvare <jdelvare@suse.com>
 L:	linux-hwmon@vger.kernel.org
@@ -5190,23 +5197,6 @@ S:	Maintained
 F:	Documentation/hwmon/f71805f
 F:	drivers/hwmon/f71805f.c
 
-FC0011 TUNER DRIVER
-M:	Michael Buesch <m@bues.ch>
-L:	linux-media@vger.kernel.org
-S:	Maintained
-F:	drivers/media/tuners/fc0011.h
-F:	drivers/media/tuners/fc0011.c
-
-FC2580 MEDIA DRIVER
-M:	Antti Palosaari <crope@iki.fi>
-L:	linux-media@vger.kernel.org
-W:	https://linuxtv.org
-W:	http://palosaari.fi/linux/
-Q:	http://patchwork.linuxtv.org/project/linux-media/list/
-T:	git git://linuxtv.org/anttip/media_tree.git
-S:	Maintained
-F:	drivers/media/tuners/fc2580*
-
 FANOTIFY
 M:	Eric Paris <eparis@redhat.com>
 S:	Maintained
@@ -5231,6 +5221,23 @@ M:	Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
 S:	Maintained
 F:	drivers/staging/fbtft/
 
+FC0011 TUNER DRIVER
+M:	Michael Buesch <m@bues.ch>
+L:	linux-media@vger.kernel.org
+S:	Maintained
+F:	drivers/media/tuners/fc0011.h
+F:	drivers/media/tuners/fc0011.c
+
+FC2580 MEDIA DRIVER
+M:	Antti Palosaari <crope@iki.fi>
+L:	linux-media@vger.kernel.org
+W:	https://linuxtv.org
+W:	http://palosaari.fi/linux/
+Q:	http://patchwork.linuxtv.org/project/linux-media/list/
+T:	git git://linuxtv.org/anttip/media_tree.git
+S:	Maintained
+F:	drivers/media/tuners/fc2580*
+
 FCOE SUBSYSTEM (libfc, libfcoe, fcoe)
 M:	Johannes Thumshirn <jth@kernel.org>
 L:	fcoe-devel@open-fcoe.org
@@ -5390,6 +5397,14 @@ L:	linuxppc-dev@lists.ozlabs.org
 S:	Maintained
 F:	drivers/dma/fsldma.*
 
+FREESCALE eTSEC ETHERNET DRIVER (GIANFAR)
+M:	Claudiu Manoil <claudiu.manoil@freescale.com>
+L:	netdev@vger.kernel.org
+S:	Maintained
+F:	drivers/net/ethernet/freescale/gianfar*
+X:	drivers/net/ethernet/freescale/gianfar_ptp.c
+F:	Documentation/devicetree/bindings/net/fsl-tsec-phy.txt
+
 FREESCALE GPMI NAND DRIVER
 M:	Han Xu <han.xu@nxp.com>
 L:	linux-mtd@lists.infradead.org
@@ -5403,6 +5418,15 @@ L:	linux-i2c@vger.kernel.org
 S:	Maintained
 F:	drivers/i2c/busses/i2c-cpm.c
 
+FREESCALE IMX / MXC FEC DRIVER
+M:	Fugang Duan <fugang.duan@nxp.com>
+L:	netdev@vger.kernel.org
+S:	Maintained
+F:	drivers/net/ethernet/freescale/fec_main.c
+F:	drivers/net/ethernet/freescale/fec_ptp.c
+F:	drivers/net/ethernet/freescale/fec.h
+F:	Documentation/devicetree/bindings/net/fsl-fec.txt
+
 FREESCALE IMX / MXC FRAMEBUFFER DRIVER
 M:	Sascha Hauer <kernel@pengutronix.de>
 L:	linux-fbdev@vger.kernel.org
@@ -5411,29 +5435,11 @@ S:	Maintained
 F:	include/linux/platform_data/video-imxfb.h
 F:	drivers/video/fbdev/imxfb.c
 
-FREESCALE QUAD SPI DRIVER
-M:	Han Xu <han.xu@nxp.com>
-L:	linux-mtd@lists.infradead.org
-S:	Maintained
-F:	drivers/mtd/spi-nor/fsl-quadspi.c
-
-FREESCALE SOC FS_ENET DRIVER
-M:	Pantelis Antoniou <pantelis.antoniou@gmail.com>
-M:	Vitaly Bordug <vbordug@ru.mvista.com>
-L:	linuxppc-dev@lists.ozlabs.org
-L:	netdev@vger.kernel.org
-S:	Maintained
-F:	drivers/net/ethernet/freescale/fs_enet/
-F:	include/linux/fs_enet_pd.h
-
-FREESCALE IMX / MXC FEC DRIVER
-M:	Fugang Duan <fugang.duan@nxp.com>
+FREESCALE QORIQ DPAA ETHERNET DRIVER
+M:	Madalin Bucur <madalin.bucur@nxp.com>
 L:	netdev@vger.kernel.org
 S:	Maintained
-F:	drivers/net/ethernet/freescale/fec_main.c
-F:	drivers/net/ethernet/freescale/fec_ptp.c
-F:	drivers/net/ethernet/freescale/fec.h
-F:	Documentation/devicetree/bindings/net/fsl-fec.txt
+F:	drivers/net/ethernet/freescale/dpaa
 
 FREESCALE QORIQ DPAA FMAN DRIVER
 M:	Madalin Bucur <madalin.bucur@nxp.com>
@@ -5442,20 +5448,11 @@ S:	Maintained
 F:	drivers/net/ethernet/freescale/fman
 F:	Documentation/devicetree/bindings/powerpc/fsl/fman.txt
 
-FREESCALE QORIQ DPAA ETHERNET DRIVER
-M:	Madalin Bucur <madalin.bucur@nxp.com>
-L:	netdev@vger.kernel.org
-S:	Maintained
-F:	drivers/net/ethernet/freescale/dpaa
-
-FREESCALE SOC DRIVERS
-M:	Li Yang <leoyang.li@nxp.com>
-L:	linuxppc-dev@lists.ozlabs.org
-L:	linux-arm-kernel@lists.infradead.org
+FREESCALE QUAD SPI DRIVER
+M:	Han Xu <han.xu@nxp.com>
+L:	linux-mtd@lists.infradead.org
 S:	Maintained
-F:	Documentation/devicetree/bindings/soc/fsl/
-F:	drivers/soc/fsl/
-F:	include/linux/fsl/
+F:	drivers/mtd/spi-nor/fsl-quadspi.c
 
 FREESCALE QUICC ENGINE LIBRARY
 M:	Qiang Zhao <qiang.zhao@nxp.com>
@@ -5465,13 +5462,6 @@ F:	drivers/soc/fsl/qe/
 F:	include/soc/fsl/*qe*.h
 F:	include/soc/fsl/*ucc*.h
 
-FREESCALE USB PERIPHERAL DRIVERS
-M:	Li Yang <leoyang.li@nxp.com>
-L:	linux-usb@vger.kernel.org
-L:	linuxppc-dev@lists.ozlabs.org
-S:	Maintained
-F:	drivers/usb/gadget/udc/fsl*
-
 FREESCALE QUICC ENGINE UCC ETHERNET DRIVER
 M:	Li Yang <leoyang.li@nxp.com>
 L:	netdev@vger.kernel.org
@@ -5479,14 +5469,6 @@ L:	linuxppc-dev@lists.ozlabs.org
 S:	Maintained
 F:	drivers/net/ethernet/freescale/ucc_geth*
 
-FREESCALE eTSEC ETHERNET DRIVER (GIANFAR)
-M:	Claudiu Manoil <claudiu.manoil@freescale.com>
-L:	netdev@vger.kernel.org
-S:	Maintained
-F:	drivers/net/ethernet/freescale/gianfar*
-X:	drivers/net/ethernet/freescale/gianfar_ptp.c
-F:	Documentation/devicetree/bindings/net/fsl-tsec-phy.txt
-
 FREESCALE QUICC ENGINE UCC HDLC DRIVER
 M:	Zhao Qiang <qiang.zhao@nxp.com>
 L:	netdev@vger.kernel.org
@@ -5500,6 +5482,24 @@ L:	linuxppc-dev@lists.ozlabs.org
 S:	Maintained
 F:	drivers/tty/serial/ucc_uart.c
 
+FREESCALE SOC DRIVERS
+M:	Li Yang <leoyang.li@nxp.com>
+L:	linuxppc-dev@lists.ozlabs.org
+L:	linux-arm-kernel@lists.infradead.org
+S:	Maintained
+F:	Documentation/devicetree/bindings/soc/fsl/
+F:	drivers/soc/fsl/
+F:	include/linux/fsl/
+
+FREESCALE SOC FS_ENET DRIVER
+M:	Pantelis Antoniou <pantelis.antoniou@gmail.com>
+M:	Vitaly Bordug <vbordug@ru.mvista.com>
+L:	linuxppc-dev@lists.ozlabs.org
+L:	netdev@vger.kernel.org
+S:	Maintained
+F:	drivers/net/ethernet/freescale/fs_enet/
+F:	include/linux/fs_enet_pd.h
+
 FREESCALE SOC SOUND DRIVERS
 M:	Timur Tabi <timur@tabi.org>
 M:	Nicolin Chen <nicoleotsuka@gmail.com>
@@ -5512,6 +5512,13 @@ F:	sound/soc/fsl/fsl*
 F:	sound/soc/fsl/imx*
 F:	sound/soc/fsl/mpc8610_hpcd.c
 
+FREESCALE USB PERIPHERAL DRIVERS
+M:	Li Yang <leoyang.li@nxp.com>
+L:	linux-usb@vger.kernel.org
+L:	linuxppc-dev@lists.ozlabs.org
+S:	Maintained
+F:	drivers/usb/gadget/udc/fsl*
+
 FREEVXFS FILESYSTEM
 M:	Christoph Hellwig <hch@infradead.org>
 W:	ftp://ftp.openlinux.org/pub/people/hch/vxfs
@@ -5552,19 +5559,6 @@ S:	Supported
 F:	fs/crypto/
 F:	include/linux/fscrypt*.h
 
-F2FS FILE SYSTEM
-M:	Jaegeuk Kim <jaegeuk@kernel.org>
-M:	Chao Yu <yuchao0@huawei.com>
-L:	linux-f2fs-devel@lists.sourceforge.net
-W:	https://f2fs.wiki.kernel.org/
-T:	git git://git.kernel.org/pub/scm/linux/kernel/git/jaegeuk/f2fs.git
-S:	Maintained
-F:	Documentation/filesystems/f2fs.txt
-F:	Documentation/ABI/testing/sysfs-fs-f2fs
-F:	fs/f2fs/
-F:	include/linux/f2fs_fs.h
-F:	include/trace/events/f2fs.h
-
 FUJITSU FR-V (FRV) PORT
 S:	Orphan
 F:	arch/frv/
@@ -5638,6 +5632,12 @@ S:	Maintained
 F:	kernel/gcov/
 F:	Documentation/dev-tools/gcov.rst
 
+GDB KERNEL DEBUGGING HELPER SCRIPTS
+M:	Jan Kiszka <jan.kiszka@siemens.com>
+M:	Kieran Bingham <kieran@bingham.xyz>
+S:	Supported
+F:	scripts/gdb/
+
 GDT SCSI DISK ARRAY CONTROLLER DRIVER
 M:	Achim Leubner <achim_leubner@adaptec.com>
 L:	linux-scsi@vger.kernel.org
@@ -5645,12 +5645,6 @@ W:	http://www.icp-vortex.com/
 S:	Supported
 F:	drivers/scsi/gdt*
 
-GDB KERNEL DEBUGGING HELPER SCRIPTS
-M:	Jan Kiszka <jan.kiszka@siemens.com>
-M:	Kieran Bingham <kieran@bingham.xyz>
-S:	Supported
-F:	scripts/gdb/
-
 GEMTEK FM RADIO RECEIVER DRIVER
 M:	Hans Verkuil <hverkuil@xs4all.nl>
 L:	linux-media@vger.kernel.org
@@ -5717,17 +5711,17 @@ L:	kvm@vger.kernel.org
 S:	Supported
 F:	drivers/uio/uio_pci_generic.c
 
-GET_MAINTAINER SCRIPT
-M:	Joe Perches <joe@perches.com>
-S:	Maintained
-F:	scripts/get_maintainer.pl
-
 GENWQE (IBM Generic Workqueue Card)
 M:	Frank Haverkamp <haver@linux.vnet.ibm.com>
 M:	Guilherme G. Piccoli <gpiccoli@linux.vnet.ibm.com>
 S:	Supported
 F:	drivers/misc/genwqe/
 
+GET_MAINTAINER SCRIPT
+M:	Joe Perches <joe@perches.com>
+S:	Maintained
+F:	scripts/get_maintainer.pl
+
 GFS2 FILE SYSTEM
 M:	Steven Whitehouse <swhiteho@redhat.com>
 M:	Bob Peterson <rpeterso@redhat.com>
@@ -5760,6 +5754,15 @@ L:	linux-input@vger.kernel.org
 S:	Maintained
 F:	drivers/input/touchscreen/goodix.c
 
+GPIO ACPI SUPPORT
+M:	Mika Westerberg <mika.westerberg@linux.intel.com>
+M:	Andy Shevchenko <andriy.shevchenko@linux.intel.com>
+L:	linux-gpio@vger.kernel.org
+L:	linux-acpi@vger.kernel.org
+S:	Maintained
+F:	Documentation/acpi/gpio-properties.txt
+F:	drivers/gpio/gpiolib-acpi.c
+
 GPIO MOCKUP DRIVER
 M:	Bamvor Jian Zhang <bamvor.zhangjian@linaro.org>
 L:	linux-gpio@vger.kernel.org
@@ -5783,15 +5786,6 @@ F:	include/asm-generic/gpio.h
 F:	include/uapi/linux/gpio.h
 F:	tools/gpio/
 
-GPIO ACPI SUPPORT
-M:	Mika Westerberg <mika.westerberg@linux.intel.com>
-M:	Andy Shevchenko <andriy.shevchenko@linux.intel.com>
-L:	linux-gpio@vger.kernel.org
-L:	linux-acpi@vger.kernel.org
-S:	Maintained
-F:	Documentation/acpi/gpio-properties.txt
-F:	drivers/gpio/gpiolib-acpi.c
-
 GRE DEMULTIPLEXER DRIVER
 M:	Dmitry Kozlov <xeb@mail.ru>
 L:	netdev@vger.kernel.org
@@ -5806,14 +5800,6 @@ L:	netdev@vger.kernel.org
 S:	Maintained
 F:	drivers/net/ethernet/aeroflex/
 
-GREYBUS SUBSYSTEM
-M:	Johan Hovold <johan@kernel.org>
-M:	Alex Elder <elder@kernel.org>
-M:	Greg Kroah-Hartman <gregkh@linuxfoundation.org>
-S:	Maintained
-F:	drivers/staging/greybus/
-L:	greybus-dev@lists.linaro.org (moderated for non-subscribers)
-
 GREYBUS AUDIO PROTOCOLS DRIVERS
 M:	Vaibhav Agarwal <vaibhav.sr@gmail.com>
 M:	Mark Greer <mgreer@animalcreek.com>
@@ -5831,24 +5817,7 @@ F:	drivers/staging/greybus/audio_manager_sysfs.c
 F:	drivers/staging/greybus/audio_module.c
 F:	drivers/staging/greybus/audio_topology.c
 
-GREYBUS PROTOCOLS DRIVERS
-M:	Rui Miguel Silva <rmfrfs@gmail.com>
-S:	Maintained
-F:	drivers/staging/greybus/sdio.c
-F:	drivers/staging/greybus/light.c
-F:	drivers/staging/greybus/gpio.c
-F:	drivers/staging/greybus/power_supply.c
-F:	drivers/staging/greybus/spi.c
-F:	drivers/staging/greybus/spilib.c
-
-GREYBUS PROTOCOLS DRIVERS
-M:	Bryan O'Donoghue <pure.logic@nexus-software.ie>
-S:	Maintained
-F:	drivers/staging/greybus/loopback.c
-F:	drivers/staging/greybus/timesync.c
-F:	drivers/staging/greybus/timesync_platform.c
-
-GREYBUS PROTOCOLS DRIVERS
+GREYBUS FW/HID/SPI PROTOCOLS DRIVERS
 M:	Viresh Kumar <vireshk@kernel.org>
 S:	Maintained
 F:	drivers/staging/greybus/authentication.c
@@ -5865,11 +5834,12 @@ F:	drivers/staging/greybus/spi.c
 F:	drivers/staging/greybus/spilib.c
 F:	drivers/staging/greybus/spilib.h
 
-GREYBUS PROTOCOLS DRIVERS
-M:	David Lin <dtwlin@gmail.com>
+GREYBUS LOOPBACK/TIME PROTOCOLS DRIVERS
+M:	Bryan O'Donoghue <pure.logic@nexus-software.ie>
 S:	Maintained
-F:	drivers/staging/greybus/uart.c
-F:	drivers/staging/greybus/log.c
+F:	drivers/staging/greybus/loopback.c
+F:	drivers/staging/greybus/timesync.c
+F:	drivers/staging/greybus/timesync_platform.c
 
 GREYBUS PLATFORM DRIVERS
 M:	Vaibhav Hiremath <hvaibhav.linux@gmail.com>
@@ -5878,6 +5848,30 @@ F:	drivers/staging/greybus/arche-platform.c
 F:	drivers/staging/greybus/arche-apb-ctrl.c
 F:	drivers/staging/greybus/arche_platform.h
 
+GREYBUS SDIO/GPIO/SPI PROTOCOLS DRIVERS
+M:	Rui Miguel Silva <rmfrfs@gmail.com>
+S:	Maintained
+F:	drivers/staging/greybus/sdio.c
+F:	drivers/staging/greybus/light.c
+F:	drivers/staging/greybus/gpio.c
+F:	drivers/staging/greybus/power_supply.c
+F:	drivers/staging/greybus/spi.c
+F:	drivers/staging/greybus/spilib.c
+
+GREYBUS SUBSYSTEM
+M:	Johan Hovold <johan@kernel.org>
+M:	Alex Elder <elder@kernel.org>
+M:	Greg Kroah-Hartman <gregkh@linuxfoundation.org>
+S:	Maintained
+F:	drivers/staging/greybus/
+L:	greybus-dev@lists.linaro.org (moderated for non-subscribers)
+
+GREYBUS UART PROTOCOLS DRIVERS
+M:	David Lin <dtwlin@gmail.com>
+S:	Maintained
+F:	drivers/staging/greybus/uart.c
+F:	drivers/staging/greybus/log.c
+
 GS1662 VIDEO SERIALIZER
 M:	Charles-Antoine Couret <charles-antoine.couret@nexvision.fr>
 L:	linux-media@vger.kernel.org
@@ -5948,13 +5942,6 @@ L:	linux-efi@vger.kernel.org
 S:	Maintained
 F:	block/partitions/efi.*
 
-STK1160 USB VIDEO CAPTURE DRIVER
-M:	Ezequiel Garcia <ezequiel@vanguardiasur.com.ar>
-L:	linux-media@vger.kernel.org
-T:	git git://linuxtv.org/media_tree.git
-S:	Maintained
-F:	drivers/media/usb/stk1160/
-
 H8/300 ARCHITECTURE
 M:	Yoshinori Sato <ysato@users.sourceforge.jp>
 L:	uclinux-h8-devel@lists.sourceforge.jp (moderated for non-subscribers)
@@ -5966,33 +5953,6 @@ F:	drivers/clocksource/h8300_*.c
 F:	drivers/clk/h8300/
 F:	drivers/irqchip/irq-renesas-h8*.c
 
-HARD DRIVE ACTIVE PROTECTION SYSTEM (HDAPS) DRIVER
-M:	Frank Seidel <frank@f-seidel.de>
-L:	platform-driver-x86@vger.kernel.org
-W:	http://www.kernel.org/pub/linux/kernel/people/fseidel/hdaps/
-S:	Maintained
-F:	drivers/platform/x86/hdaps.c
-
-HDPVR USB VIDEO ENCODER DRIVER
-M:	Hans Verkuil <hverkuil@xs4all.nl>
-L:	linux-media@vger.kernel.org
-T:	git git://linuxtv.org/media_tree.git
-W:	https://linuxtv.org
-S:	Odd Fixes
-F:	drivers/media/usb/hdpvr/
-
-HWPOISON MEMORY FAILURE HANDLING
-M:	Naoya Horiguchi <n-horiguchi@ah.jp.nec.com>
-L:	linux-mm@kvack.org
-S:	Maintained
-F:	mm/memory-failure.c
-F:	mm/hwpoison-inject.c
-
-HYPERVISOR VIRTUAL CONSOLE DRIVER
-L:	linuxppc-dev@lists.ozlabs.org
-S:	Odd Fixes
-F:	drivers/tty/hvc/
-
 HACKRF MEDIA DRIVER
 M:	Antti Palosaari <crope@iki.fi>
 L:	linux-media@vger.kernel.org
@@ -6003,6 +5963,13 @@ T:	git git://linuxtv.org/anttip/media_tree.git
 S:	Maintained
 F:	drivers/media/usb/hackrf/
 
+HARD DRIVE ACTIVE PROTECTION SYSTEM (HDAPS) DRIVER
+M:	Frank Seidel <frank@f-seidel.de>
+L:	platform-driver-x86@vger.kernel.org
+W:	http://www.kernel.org/pub/linux/kernel/people/fseidel/hdaps/
+S:	Maintained
+F:	drivers/platform/x86/hdaps.c
+
 HARDWARE MONITORING
 M:	Jean Delvare <jdelvare@suse.com>
 M:	Guenter Roeck <linux@roeck-us.net>
@@ -6041,6 +6008,14 @@ L:	linux-parisc@vger.kernel.org
 S:	Maintained
 F:	sound/parisc/harmony.*
 
+HDPVR USB VIDEO ENCODER DRIVER
+M:	Hans Verkuil <hverkuil@xs4all.nl>
+L:	linux-media@vger.kernel.org
+T:	git git://linuxtv.org/media_tree.git
+W:	https://linuxtv.org
+S:	Odd Fixes
+F:	drivers/media/usb/hdpvr/
+
 HEWLETT PACKARD ENTERPRISE ILO NMI WATCHDOG DRIVER
 M:	Jimmy Vance <jimmy.vance@hpe.com>
 S:	Supported
@@ -6067,13 +6042,6 @@ F:	drivers/block/cciss*
 F:	include/linux/cciss_ioctl.h
 F:	include/uapi/linux/cciss_ioctl.h
 
-OPA-VNIC DRIVER
-M:	Dennis Dalessandro <dennis.dalessandro@intel.com>
-M:	Niranjana Vishwanathapura <niranjana.vishwanathapura@intel.com>
-L:	linux-rdma@vger.kernel.org
-S:	Supported
-F:	drivers/infiniband/ulp/opa_vnic
-
 HFI1 DRIVER
 M:	Mike Marciniszyn <mike.marciniszyn@intel.com>
 M:	Dennis Dalessandro <dennis.dalessandro@intel.com>
@@ -6251,6 +6219,12 @@ L:	netdev@vger.kernel.org
 S:	Maintained
 F:	net/hsr/
 
+HT16K33 LED CONTROLLER DRIVER
+M:	Robin van der Gracht <robin@protonic.nl>
+S:	Maintained
+F:	drivers/auxdisplay/ht16k33.c
+F:	Documentation/devicetree/bindings/display/ht16k33.txt
+
 HTCPEN TOUCHSCREEN DRIVER
 M:	Pau Oliva Fora <pof@eslack.org>
 L:	linux-input@vger.kernel.org
@@ -6270,6 +6244,13 @@ W:	https://linuxtv.org
 S:	Supported
 F:	drivers/media/platform/sti/hva
 
+HWPOISON MEMORY FAILURE HANDLING
+M:	Naoya Horiguchi <n-horiguchi@ah.jp.nec.com>
+L:	linux-mm@kvack.org
+S:	Maintained
+F:	mm/memory-failure.c
+F:	mm/hwpoison-inject.c
+
 Hyper-V CORE AND DRIVERS
 M:	"K. Y. Srinivasan" <kys@microsoft.com>
 M:	Haiyang Zhang <haiyangz@microsoft.com>
@@ -6292,6 +6273,18 @@ F:	include/linux/hyperv.h
 F:	tools/hv/
 F:	Documentation/ABI/stable/sysfs-bus-vmbus
 
+HYPERVISOR VIRTUAL CONSOLE DRIVER
+L:	linuxppc-dev@lists.ozlabs.org
+S:	Odd Fixes
+F:	drivers/tty/hvc/
+
+I2C ACPI SUPPORT
+M:	Mika Westerberg <mika.westerberg@linux.intel.com>
+L:	linux-i2c@vger.kernel.org
+L:	linux-acpi@vger.kernel.org
+S:	Maintained
+F:	drivers/i2c/i2c-core-acpi.c
+
 I2C MUXES
 M:	Peter Rosin <peda@axentia.se>
 L:	linux-i2c@vger.kernel.org
@@ -6314,6 +6307,36 @@ F:	Documentation/i2c/busses/i2c-parport-light
 F:	drivers/i2c/busses/i2c-parport.c
 F:	drivers/i2c/busses/i2c-parport-light.c
 
+I2C SUBSYSTEM
+M:	Wolfram Sang <wsa@the-dreams.de>
+L:	linux-i2c@vger.kernel.org
+W:	https://i2c.wiki.kernel.org/
+Q:	https://patchwork.ozlabs.org/project/linux-i2c/list/
+T:	git git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux.git
+S:	Maintained
+F:	Documentation/devicetree/bindings/i2c/
+F:	Documentation/i2c/
+F:	drivers/i2c/
+F:	drivers/i2c/*/
+F:	include/linux/i2c.h
+F:	include/linux/i2c-*.h
+F:	include/uapi/linux/i2c.h
+F:	include/uapi/linux/i2c-*.h
+
+I2C-TAOS-EVM DRIVER
+M:	Jean Delvare <jdelvare@suse.com>
+L:	linux-i2c@vger.kernel.org
+S:	Maintained
+F:	Documentation/i2c/busses/i2c-taos-evm
+F:	drivers/i2c/busses/i2c-taos-evm.c
+
+I2C-TINY-USB DRIVER
+M:	Till Harbaum <till@harbaum.org>
+L:	linux-i2c@vger.kernel.org
+W:	http://www.harbaum.org/till/i2c_tiny_usb
+S:	Maintained
+F:	drivers/i2c/busses/i2c-tiny-usb.c
+
 I2C/SMBUS CONTROLLER DRIVERS FOR PC
 M:	Jean Delvare <jdelvare@suse.com>
 L:	linux-i2c@vger.kernel.org
@@ -6361,42 +6384,6 @@ L:	linux-i2c@vger.kernel.org
 S:	Maintained
 F:	drivers/i2c/i2c-stub.c
 
-I2C SUBSYSTEM
-M:	Wolfram Sang <wsa@the-dreams.de>
-L:	linux-i2c@vger.kernel.org
-W:	https://i2c.wiki.kernel.org/
-Q:	https://patchwork.ozlabs.org/project/linux-i2c/list/
-T:	git git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux.git
-S:	Maintained
-F:	Documentation/devicetree/bindings/i2c/
-F:	Documentation/i2c/
-F:	drivers/i2c/
-F:	drivers/i2c/*/
-F:	include/linux/i2c.h
-F:	include/linux/i2c-*.h
-F:	include/uapi/linux/i2c.h
-F:	include/uapi/linux/i2c-*.h
-
-I2C ACPI SUPPORT
-M:	Mika Westerberg <mika.westerberg@linux.intel.com>
-L:	linux-i2c@vger.kernel.org
-L:	linux-acpi@vger.kernel.org
-S:	Maintained
-
-I2C-TAOS-EVM DRIVER
-M:	Jean Delvare <jdelvare@suse.com>
-L:	linux-i2c@vger.kernel.org
-S:	Maintained
-F:	Documentation/i2c/busses/i2c-taos-evm
-F:	drivers/i2c/busses/i2c-taos-evm.c
-
-I2C-TINY-USB DRIVER
-M:	Till Harbaum <till@harbaum.org>
-L:	linux-i2c@vger.kernel.org
-W:	http://www.harbaum.org/till/i2c_tiny_usb
-S:	Maintained
-F:	drivers/i2c/busses/i2c-tiny-usb.c
-
 i386 BOOT CODE
 M:	"H. Peter Anvin" <hpa@zytor.com>
 S:	Maintained
@@ -6415,17 +6402,15 @@ T:	git git://git.kernel.org/pub/scm/linux/kernel/git/aegl/linux.git
 S:	Maintained
 F:	arch/ia64/
 
-IBM Power VMX Cryptographic instructions
-M:	Leonidas S. Barbosa <leosilva@linux.vnet.ibm.com>
-M:	Paulo Flabiano Smorigo <pfsmorigo@linux.vnet.ibm.com>
-L:	linux-crypto@vger.kernel.org
+IBM Power 842 compression accelerator
+M:	Haren Myneni <haren@us.ibm.com>
 S:	Supported
-F:	drivers/crypto/vmx/Makefile
-F:	drivers/crypto/vmx/Kconfig
-F:	drivers/crypto/vmx/vmx.c
-F:	drivers/crypto/vmx/aes*
-F:	drivers/crypto/vmx/ghash*
-F:	drivers/crypto/vmx/ppc-xlate.pl
+F:	drivers/crypto/nx/Makefile
+F:	drivers/crypto/nx/Kconfig
+F:	drivers/crypto/nx/nx-842*
+F:	include/linux/sw842.h
+F:	crypto/842.c
+F:	lib/842/
 
 IBM Power in-Nest Crypto Acceleration
 M:	Leonidas S. Barbosa <leosilva@linux.vnet.ibm.com>
@@ -6440,33 +6425,29 @@ F:	drivers/crypto/nx/nx.*
 F:	drivers/crypto/nx/nx_csbcpb.h
 F:	drivers/crypto/nx/nx_debugfs.h
 
-IBM Power 842 compression accelerator
-M:	Haren Myneni <haren@us.ibm.com>
-S:	Supported
-F:	drivers/crypto/nx/Makefile
-F:	drivers/crypto/nx/Kconfig
-F:	drivers/crypto/nx/nx-842*
-F:	include/linux/sw842.h
-F:	crypto/842.c
-F:	lib/842/
-
 IBM Power Linux RAID adapter
 M:	Brian King <brking@us.ibm.com>
 S:	Supported
 F:	drivers/scsi/ipr.*
 
-IBM Power Virtual Ethernet Device Driver
+IBM Power SRIOV Virtual NIC Device Driver
 M:	Thomas Falcon <tlfalcon@linux.vnet.ibm.com>
+M:	John Allen <jallen@linux.vnet.ibm.com>
 L:	netdev@vger.kernel.org
 S:	Supported
-F:	drivers/net/ethernet/ibm/ibmveth.*
+F:	drivers/net/ethernet/ibm/ibmvnic.*
 
-IBM Power SRIOV Virtual NIC Device Driver
+IBM Power Virtual Ethernet Device Driver
 M:	Thomas Falcon <tlfalcon@linux.vnet.ibm.com>
-M:	John Allen <jallen@linux.vnet.ibm.com>
 L:	netdev@vger.kernel.org
 S:	Supported
-F:	drivers/net/ethernet/ibm/ibmvnic.*
+F:	drivers/net/ethernet/ibm/ibmveth.*
+
+IBM Power Virtual FC Device Drivers
+M:	Tyrel Datwyler <tyreld@linux.vnet.ibm.com>
+L:	linux-scsi@vger.kernel.org
+S:	Supported
+F:	drivers/scsi/ibmvscsi/ibmvfc*
 
 IBM Power Virtual SCSI Device Drivers
 M:	Tyrel Datwyler <tyreld@linux.vnet.ibm.com>
@@ -6483,11 +6464,17 @@ L:	target-devel@vger.kernel.org
 S:	Supported
 F:	drivers/scsi/ibmvscsi_tgt/
 
-IBM Power Virtual FC Device Drivers
-M:	Tyrel Datwyler <tyreld@linux.vnet.ibm.com>
-L:	linux-scsi@vger.kernel.org
+IBM Power VMX Cryptographic instructions
+M:	Leonidas S. Barbosa <leosilva@linux.vnet.ibm.com>
+M:	Paulo Flabiano Smorigo <pfsmorigo@linux.vnet.ibm.com>
+L:	linux-crypto@vger.kernel.org
 S:	Supported
-F:	drivers/scsi/ibmvscsi/ibmvfc*
+F:	drivers/crypto/vmx/Makefile
+F:	drivers/crypto/vmx/Kconfig
+F:	drivers/crypto/vmx/vmx.c
+F:	drivers/crypto/vmx/aes*
+F:	drivers/crypto/vmx/ghash*
+F:	drivers/crypto/vmx/ppc-xlate.pl
 
 IBM ServeRAID RAID DRIVER
 S:	Orphan
@@ -6499,11 +6486,6 @@ S:	Maintained
 F:	drivers/mfd/lpc_ich.c
 F:	drivers/gpio/gpio-ich.c
 
-IDT VersaClock 5 CLOCK DRIVER
-M:	Marek Vasut <marek.vasut@gmail.com>
-S:	Maintained
-F:	drivers/clk/clk-versaclock5.c
-
 IDE SUBSYSTEM
 M:	"David S. Miller" <davem@davemloft.net>
 L:	linux-ide@vger.kernel.org
@@ -6514,6 +6496,13 @@ F:	Documentation/ide/
 F:	drivers/ide/
 F:	include/linux/ide.h
 
+IDE/ATAPI DRIVERS
+M:	Borislav Petkov <bp@alien8.de>
+L:	linux-ide@vger.kernel.org
+S:	Maintained
+F:	Documentation/cdrom/ide-cd
+F:	drivers/ide/ide-cd*
+
 IDEAPAD LAPTOP EXTRAS DRIVER
 M:	Ike Panhc <ike.pan@canonical.com>
 L:	platform-driver-x86@vger.kernel.org
@@ -6528,12 +6517,10 @@ W:	https://github.com/o2genum/ideapad-slidebar
 S:	Maintained
 F:	drivers/input/misc/ideapad_slidebar.c
 
-IDE/ATAPI DRIVERS
-M:	Borislav Petkov <bp@alien8.de>
-L:	linux-ide@vger.kernel.org
+IDT VersaClock 5 CLOCK DRIVER
+M:	Marek Vasut <marek.vasut@gmail.com>
 S:	Maintained
-F:	Documentation/cdrom/ide-cd
-F:	drivers/ide/ide-cd*
+F:	drivers/clk/clk-versaclock5.c
 
 IEEE 802.15.4 SUBSYSTEM
 M:	Alexander Aring <alex.aring@gmail.com>
@@ -6623,6 +6610,16 @@ S:	Maintained
 F:	Documentation/devicetree/bindings/auxdisplay/img-ascii-lcd.txt
 F:	drivers/auxdisplay/img-ascii-lcd.c
 
+IMGTEC IR DECODER DRIVER
+M:	James Hogan <james.hogan@imgtec.com>
+S:	Maintained
+F:	drivers/media/rc/img-ir/
+
+IMS TWINTURBO FRAMEBUFFER DRIVER
+L:	linux-fbdev@vger.kernel.org
+S:	Orphan
+F:	drivers/video/fbdev/imsttfb.c
+
 INA209 HARDWARE MONITOR DRIVER
 M:	Guenter Roeck <linux@roeck-us.net>
 L:	linux-hwmon@vger.kernel.org
@@ -6648,37 +6645,6 @@ W:	http://industrypack.sourceforge.net
 S:	Maintained
 F:	drivers/ipack/
 
-INGENIC JZ4780 DMA Driver
-M:	Zubair Lutfullah Kakakhel <Zubair.Kakakhel@imgtec.com>
-S:	Maintained
-F:	drivers/dma/dma-jz4780.c
-
-INGENIC JZ4780 NAND DRIVER
-M:	Harvey Hunt <harveyhuntnexus@gmail.com>
-L:	linux-mtd@lists.infradead.org
-S:	Maintained
-F:	drivers/mtd/nand/jz4780_*
-
-INTEGRITY MEASUREMENT ARCHITECTURE (IMA)
-M:	Mimi Zohar <zohar@linux.vnet.ibm.com>
-M:	Dmitry Kasatkin <dmitry.kasatkin@gmail.com>
-L:	linux-ima-devel@lists.sourceforge.net
-L:	linux-ima-user@lists.sourceforge.net
-L:	linux-security-module@vger.kernel.org
-T:	git git://git.kernel.org/pub/scm/linux/kernel/git/zohar/linux-integrity.git
-S:	Supported
-F:	security/integrity/ima/
-
-IMGTEC IR DECODER DRIVER
-M:	James Hogan <james.hogan@imgtec.com>
-S:	Maintained
-F:	drivers/media/rc/img-ir/
-
-IMS TWINTURBO FRAMEBUFFER DRIVER
-L:	linux-fbdev@vger.kernel.org
-S:	Orphan
-F:	drivers/video/fbdev/imsttfb.c
-
 INFINIBAND SUBSYSTEM
 M:	Doug Ledford <dledford@redhat.com>
 M:	Sean Hefty <sean.hefty@intel.com>
@@ -6695,6 +6661,17 @@ F:	include/uapi/linux/if_infiniband.h
 F:	include/uapi/rdma/
 F:	include/rdma/
 
+INGENIC JZ4780 DMA Driver
+M:	Zubair Lutfullah Kakakhel <Zubair.Kakakhel@imgtec.com>
+S:	Maintained
+F:	drivers/dma/dma-jz4780.c
+
+INGENIC JZ4780 NAND DRIVER
+M:	Harvey Hunt <harveyhuntnexus@gmail.com>
+L:	linux-mtd@lists.infradead.org
+S:	Maintained
+F:	drivers/mtd/nand/jz4780_*
+
 INOTIFY
 M:	John McCutchan <john@johnmccutchan.com>
 M:	Robert Love <rlove@rlove.org>
@@ -6733,6 +6710,22 @@ F:	drivers/crypto/inside-secure/
 S:	Maintained
 L:	linux-crypto@vger.kernel.org
 
+INTEGRITY MEASUREMENT ARCHITECTURE (IMA)
+M:	Mimi Zohar <zohar@linux.vnet.ibm.com>
+M:	Dmitry Kasatkin <dmitry.kasatkin@gmail.com>
+L:	linux-ima-devel@lists.sourceforge.net
+L:	linux-ima-user@lists.sourceforge.net
+L:	linux-security-module@vger.kernel.org
+T:	git git://git.kernel.org/pub/scm/linux/kernel/git/zohar/linux-integrity.git
+S:	Supported
+F:	security/integrity/ima/
+
+INTEL 810/815 FRAMEBUFFER DRIVER
+M:	Antonino Daplas <adaplas@gmail.com>
+L:	linux-fbdev@vger.kernel.org
+S:	Maintained
+F:	drivers/video/fbdev/i810/
+
 INTEL ASoC BDW/HSW DRIVERS
 M:	Jie Yang <yang.jie@linux.intel.com>
 L:	alsa-devel@alsa-project.org (moderated for non-subscribers)
@@ -6750,17 +6743,74 @@ T:	git git://git.code.sf.net/p/intel-sas/isci
 S:	Supported
 F:	drivers/scsi/isci/
 
+INTEL DRM DRIVERS (excluding Poulsbo, Moorestown and derivative chipsets)
+M:	Daniel Vetter <daniel.vetter@intel.com>
+M:	Jani Nikula <jani.nikula@linux.intel.com>
+L:	intel-gfx@lists.freedesktop.org
+W:	https://01.org/linuxgraphics/
+B:	https://01.org/linuxgraphics/documentation/how-report-bugs
+C:	irc://chat.freenode.net/intel-gfx
+Q:	http://patchwork.freedesktop.org/project/intel-gfx/
+T:	git git://anongit.freedesktop.org/drm-intel
+S:	Supported
+F:	drivers/gpu/drm/i915/
+F:	include/drm/i915*
+F:	include/uapi/drm/i915_drm.h
+F:	Documentation/gpu/i915.rst
+
+INTEL ETHERNET DRIVERS
+M:	Jeff Kirsher <jeffrey.t.kirsher@intel.com>
+L:	intel-wired-lan@lists.osuosl.org (moderated for non-subscribers)
+W:	http://www.intel.com/support/feedback.htm
+W:	http://e1000.sourceforge.net/
+Q:	http://patchwork.ozlabs.org/project/intel-wired-lan/list/
+T:	git git://git.kernel.org/pub/scm/linux/kernel/git/jkirsher/net-queue.git
+T:	git git://git.kernel.org/pub/scm/linux/kernel/git/jkirsher/next-queue.git
+S:	Supported
+F:	Documentation/networking/e100.txt
+F:	Documentation/networking/e1000.txt
+F:	Documentation/networking/e1000e.txt
+F:	Documentation/networking/igb.txt
+F:	Documentation/networking/igbvf.txt
+F:	Documentation/networking/ixgb.txt
+F:	Documentation/networking/ixgbe.txt
+F:	Documentation/networking/ixgbevf.txt
+F:	Documentation/networking/i40e.txt
+F:	Documentation/networking/i40evf.txt
+F:	drivers/net/ethernet/intel/
+F:	drivers/net/ethernet/intel/*/
+F:	include/linux/avf/virtchnl.h
+
+INTEL FRAMEBUFFER DRIVER (excluding 810 and 815)
+M:	Maik Broemme <mbroemme@libmpq.org>
+L:	linux-fbdev@vger.kernel.org
+S:	Maintained
+F:	Documentation/fb/intelfb.txt
+F:	drivers/video/fbdev/intelfb/
+
+INTEL GVT-g DRIVERS (Intel GPU Virtualization)
+M:	Zhenyu Wang <zhenyuw@linux.intel.com>
+M:	Zhi Wang <zhi.a.wang@intel.com>
+L:	intel-gvt-dev@lists.freedesktop.org
+L:	intel-gfx@lists.freedesktop.org
+W:	https://01.org/igvt-g
+T:	git https://github.com/01org/gvt-linux.git
+S:	Supported
+F:	drivers/gpu/drm/i915/gvt/
+
 INTEL HID EVENT DRIVER
 M:	Alex Hung <alex.hung@canonical.com>
 L:	platform-driver-x86@vger.kernel.org
 S:	Maintained
 F:	drivers/platform/x86/intel-hid.c
 
-INTEL VIRTUAL BUTTON DRIVER
-M:	AceLan Kao <acelan.kao@canonical.com>
-L:	platform-driver-x86@vger.kernel.org
-S:	Maintained
-F:	drivers/platform/x86/intel-vbtn.c
+INTEL I/OAT DMA DRIVER
+M:	Dave Jiang <dave.jiang@intel.com>
+R:	Dan Williams <dan.j.williams@intel.com>
+L:	dmaengine@vger.kernel.org
+Q:	https://patchwork.kernel.org/project/linux-dmaengine/list/
+S:	Supported
+F:	drivers/dma/ioat*
 
 INTEL IDLE DRIVER
 M:	Jacob Pan <jacob.jun.pan@linux.intel.com>
@@ -6778,41 +6828,6 @@ L:	linux-input@vger.kernel.org
 S:	Maintained
 F:	drivers/hid/intel-ish-hid/
 
-INTEL PSTATE DRIVER
-M:	Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
-M:	Len Brown <lenb@kernel.org>
-L:	linux-pm@vger.kernel.org
-S:	Supported
-F:	drivers/cpufreq/intel_pstate.c
-
-INTEL FRAMEBUFFER DRIVER (excluding 810 and 815)
-M:	Maik Broemme <mbroemme@libmpq.org>
-L:	linux-fbdev@vger.kernel.org
-S:	Maintained
-F:	Documentation/fb/intelfb.txt
-F:	drivers/video/fbdev/intelfb/
-
-INTEL 810/815 FRAMEBUFFER DRIVER
-M:	Antonino Daplas <adaplas@gmail.com>
-L:	linux-fbdev@vger.kernel.org
-S:	Maintained
-F:	drivers/video/fbdev/i810/
-
-INTEL MENLOW THERMAL DRIVER
-M:	Sujith Thomas <sujith.thomas@intel.com>
-L:	platform-driver-x86@vger.kernel.org
-W:	https://01.org/linux-acpi
-S:	Supported
-F:	drivers/platform/x86/intel_menlow.c
-
-INTEL I/OAT DMA DRIVER
-M:	Dave Jiang <dave.jiang@intel.com>
-R:	Dan Williams <dan.j.williams@intel.com>
-L:	dmaengine@vger.kernel.org
-Q:	https://patchwork.kernel.org/project/linux-dmaengine/list/
-S:	Supported
-F:	drivers/dma/ioat*
-
 INTEL IOMMU (VT-d)
 M:	David Woodhouse <dwmw2@infradead.org>
 L:	iommu@lists.linux-foundation.org
@@ -6841,35 +6856,23 @@ M:	Deepak Saxena <dsaxena@plexity.net>
 S:	Maintained
 F:	drivers/char/hw_random/ixp4xx-rng.c
 
-INTEL ETHERNET DRIVERS
-M:	Jeff Kirsher <jeffrey.t.kirsher@intel.com>
-L:	intel-wired-lan@lists.osuosl.org (moderated for non-subscribers)
-W:	http://www.intel.com/support/feedback.htm
-W:	http://e1000.sourceforge.net/
-Q:	http://patchwork.ozlabs.org/project/intel-wired-lan/list/
-T:	git git://git.kernel.org/pub/scm/linux/kernel/git/jkirsher/net-queue.git
-T:	git git://git.kernel.org/pub/scm/linux/kernel/git/jkirsher/next-queue.git
+INTEL MANAGEMENT ENGINE (mei)
+M:	Tomas Winkler <tomas.winkler@intel.com>
+L:	linux-kernel@vger.kernel.org
 S:	Supported
-F:	Documentation/networking/e100.txt
-F:	Documentation/networking/e1000.txt
-F:	Documentation/networking/e1000e.txt
-F:	Documentation/networking/igb.txt
-F:	Documentation/networking/igbvf.txt
-F:	Documentation/networking/ixgb.txt
-F:	Documentation/networking/ixgbe.txt
-F:	Documentation/networking/ixgbevf.txt
-F:	Documentation/networking/i40e.txt
-F:	Documentation/networking/i40evf.txt
-F:	drivers/net/ethernet/intel/
-F:	drivers/net/ethernet/intel/*/
-F:	include/linux/avf/virtchnl.h
+F:	include/uapi/linux/mei.h
+F:	include/linux/mei_cl_bus.h
+F:	drivers/misc/mei/*
+F:	drivers/watchdog/mei_wdt.c
+F:	Documentation/misc-devices/mei/*
+F:	samples/mei/*
 
-INTEL RDMA RNIC DRIVER
-M:     Faisal Latif <faisal.latif@intel.com>
-M:     Shiraz Saleem <shiraz.saleem@intel.com>
-L:     linux-rdma@vger.kernel.org
-S:     Supported
-F:     drivers/infiniband/hw/i40iw/
+INTEL MENLOW THERMAL DRIVER
+M:	Sujith Thomas <sujith.thomas@intel.com>
+L:	platform-driver-x86@vger.kernel.org
+W:	https://01.org/linux-acpi
+S:	Supported
+F:	drivers/platform/x86/intel_menlow.c
 
 INTEL MERRIFIELD GPIO DRIVER
 M:	Andy Shevchenko <andriy.shevchenko@linux.intel.com>
@@ -6877,11 +6880,38 @@ L:	linux-gpio@vger.kernel.org
 S:	Maintained
 F:	drivers/gpio/gpio-merrifield.c
 
-INTEL-MID GPIO DRIVER
-M:	David Cohen <david.a.cohen@linux.intel.com>
-L:	linux-gpio@vger.kernel.org
+INTEL MIC DRIVERS (mic)
+M:	Sudeep Dutt <sudeep.dutt@intel.com>
+M:	Ashutosh Dixit <ashutosh.dixit@intel.com>
+S:	Supported
+W:	https://github.com/sudeepdutt/mic
+W:	http://software.intel.com/en-us/mic-developer
+F:	include/linux/mic_bus.h
+F:	include/linux/scif.h
+F:	include/uapi/linux/mic_common.h
+F:	include/uapi/linux/mic_ioctl.h
+F:	include/uapi/linux/scif_ioctl.h
+F:	drivers/misc/mic/
+F:	drivers/dma/mic_x100_dma.c
+F:	drivers/dma/mic_x100_dma.h
+F:	Documentation/mic/
+
+INTEL PMC CORE DRIVER
+M:	Rajneesh Bhardwaj <rajneesh.bhardwaj@intel.com>
+M:	Vishwanath Somayaji <vishwanath.somayaji@intel.com>
+L:	platform-driver-x86@vger.kernel.org
 S:	Maintained
-F:	drivers/gpio/gpio-intel-mid.c
+F:	arch/x86/include/asm/pmc_core.h
+F:	drivers/platform/x86/intel_pmc_core*
+
+INTEL PMC/P-Unit IPC DRIVER
+M:	Zha Qipeng<qipeng.zha@intel.com>
+L:	platform-driver-x86@vger.kernel.org
+S:	Maintained
+F:	drivers/platform/x86/intel_pmc_ipc.c
+F:	drivers/platform/x86/intel_punit_ipc.c
+F:	arch/x86/include/asm/intel_pmc_ipc.h
+F:	arch/x86/include/asm/intel_punit_ipc.h
 
 INTEL PRO/WIRELESS 2100, 2200BG, 2915ABG NETWORK CONNECTION SUPPORT
 M:	Stanislav Yakovlev <stas.yakovlev@gmail.com>
@@ -6891,31 +6921,32 @@ F:	Documentation/networking/README.ipw2100
 F:	Documentation/networking/README.ipw2200
 F:	drivers/net/wireless/intel/ipw2x00/
 
-INTEL(R) TRACE HUB
-M:	Alexander Shishkin <alexander.shishkin@linux.intel.com>
+INTEL PSTATE DRIVER
+M:	Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
+M:	Len Brown <lenb@kernel.org>
+L:	linux-pm@vger.kernel.org
 S:	Supported
-F:	Documentation/trace/intel_th.txt
-F:	drivers/hwtracing/intel_th/
+F:	drivers/cpufreq/intel_pstate.c
 
-INTEL(R) TRUSTED EXECUTION TECHNOLOGY (TXT)
-M:	Ning Sun <ning.sun@intel.com>
-L:	tboot-devel@lists.sourceforge.net
-W:	http://tboot.sourceforge.net
-T:	hg http://tboot.hg.sourceforge.net:8000/hgroot/tboot/tboot
+INTEL RDMA RNIC DRIVER
+M:	Faisal Latif <faisal.latif@intel.com>
+M:	Shiraz Saleem <shiraz.saleem@intel.com>
+L:	linux-rdma@vger.kernel.org
 S:	Supported
-F:	Documentation/intel_txt.txt
-F:	include/linux/tboot.h
-F:	arch/x86/kernel/tboot.c
+F:	drivers/infiniband/hw/i40iw/
 
-INTEL WIRELESS WIMAX CONNECTION 2400
-M:	Inaky Perez-Gonzalez <inaky.perez-gonzalez@intel.com>
-M:	linux-wimax@intel.com
-L:	wimax@linuxwimax.org (subscribers-only)
-S:	Supported
-W:	http://linuxwimax.org
-F:	Documentation/wimax/README.i2400m
-F:	drivers/net/wimax/i2400m/
-F:	include/uapi/linux/wimax/i2400m.h
+INTEL TELEMETRY DRIVER
+M:	Souvik Kumar Chakravarty <souvik.k.chakravarty@intel.com>
+L:	platform-driver-x86@vger.kernel.org
+S:	Maintained
+F:	arch/x86/include/asm/intel_telemetry.h
+F:	drivers/platform/x86/intel_telemetry*
+
+INTEL VIRTUAL BUTTON DRIVER
+M:	AceLan Kao <acelan.kao@canonical.com>
+L:	platform-driver-x86@vger.kernel.org
+S:	Maintained
+F:	drivers/platform/x86/intel-vbtn.c
 
 INTEL WIRELESS 3945ABG/BG, 4965AGN (iwlegacy)
 M:	Stanislaw Gruszka <sgruszka@redhat.com>
@@ -6934,56 +6965,37 @@ T:	git git://git.kernel.org/pub/scm/linux/kernel/git/iwlwifi/iwlwifi.git
 S:	Supported
 F:	drivers/net/wireless/intel/iwlwifi/
 
-INTEL MANAGEMENT ENGINE (mei)
-M:	Tomas Winkler <tomas.winkler@intel.com>
-L:	linux-kernel@vger.kernel.org
+INTEL WIRELESS WIMAX CONNECTION 2400
+M:	Inaky Perez-Gonzalez <inaky.perez-gonzalez@intel.com>
+M:	linux-wimax@intel.com
+L:	wimax@linuxwimax.org (subscribers-only)
 S:	Supported
-F:	include/uapi/linux/mei.h
-F:	include/linux/mei_cl_bus.h
-F:	drivers/misc/mei/*
-F:	drivers/watchdog/mei_wdt.c
-F:	Documentation/misc-devices/mei/*
-F:	samples/mei/*
+W:	http://linuxwimax.org
+F:	Documentation/wimax/README.i2400m
+F:	drivers/net/wimax/i2400m/
+F:	include/uapi/linux/wimax/i2400m.h
 
-INTEL MIC DRIVERS (mic)
-M:	Sudeep Dutt <sudeep.dutt@intel.com>
-M:	Ashutosh Dixit <ashutosh.dixit@intel.com>
+INTEL(R) TRACE HUB
+M:	Alexander Shishkin <alexander.shishkin@linux.intel.com>
 S:	Supported
-W:	https://github.com/sudeepdutt/mic
-W:	http://software.intel.com/en-us/mic-developer
-F:	include/linux/mic_bus.h
-F:	include/linux/scif.h
-F:	include/uapi/linux/mic_common.h
-F: 	include/uapi/linux/mic_ioctl.h
-F:	include/uapi/linux/scif_ioctl.h
-F:	drivers/misc/mic/
-F:	drivers/dma/mic_x100_dma.c
-F:	drivers/dma/mic_x100_dma.h
-F:	Documentation/mic/
-
-INTEL PMC/P-Unit IPC DRIVER
-M:	Zha Qipeng<qipeng.zha@intel.com>
-L:	platform-driver-x86@vger.kernel.org
-S:	Maintained
-F:	drivers/platform/x86/intel_pmc_ipc.c
-F:	drivers/platform/x86/intel_punit_ipc.c
-F:	arch/x86/include/asm/intel_pmc_ipc.h
-F:	arch/x86/include/asm/intel_punit_ipc.h
+F:	Documentation/trace/intel_th.txt
+F:	drivers/hwtracing/intel_th/
 
-INTEL TELEMETRY DRIVER
-M:	Souvik Kumar Chakravarty <souvik.k.chakravarty@intel.com>
-L:	platform-driver-x86@vger.kernel.org
-S:	Maintained
-F:	arch/x86/include/asm/intel_telemetry.h
-F:	drivers/platform/x86/intel_telemetry*
+INTEL(R) TRUSTED EXECUTION TECHNOLOGY (TXT)
+M:	Ning Sun <ning.sun@intel.com>
+L:	tboot-devel@lists.sourceforge.net
+W:	http://tboot.sourceforge.net
+T:	hg http://tboot.hg.sourceforge.net:8000/hgroot/tboot/tboot
+S:	Supported
+F:	Documentation/intel_txt.txt
+F:	include/linux/tboot.h
+F:	arch/x86/kernel/tboot.c
 
-INTEL PMC CORE DRIVER
-M:	Rajneesh Bhardwaj <rajneesh.bhardwaj@intel.com>
-M:	Vishwanath Somayaji <vishwanath.somayaji@intel.com>
-L:	platform-driver-x86@vger.kernel.org
+INTEL-MID GPIO DRIVER
+M:	David Cohen <david.a.cohen@linux.intel.com>
+L:	linux-gpio@vger.kernel.org
 S:	Maintained
-F:	arch/x86/include/asm/pmc_core.h
-F:	drivers/platform/x86/intel_pmc_core*
+F:	drivers/gpio/gpio-intel-mid.c
 
 INVENSENSE MPU-3050 GYROSCOPE DRIVER
 M:	Linus Walleij <linus.walleij@linaro.org>
@@ -7029,13 +7041,6 @@ F:	drivers/char/ipmi/
 F:	include/linux/ipmi*
 F:	include/uapi/linux/ipmi*
 
-QCOM AUDIO (ASoC) DRIVERS
-M:	Patrick Lai <plai@codeaurora.org>
-M:	Banajit Goswami <bgoswami@codeaurora.org>
-L:	alsa-devel@alsa-project.org (moderated for non-subscribers)
-S:	Supported
-F:	sound/soc/qcom/
-
 IPS SCSI RAID DRIVER
 M:	Adaptec OEM Raid Solutions <aacraid@adaptec.com>
 L:	linux-scsi@vger.kernel.org
@@ -7082,6 +7087,15 @@ F:	drivers/net/irda/
 F:	include/net/irda/
 F:	net/irda/
 
+IRQ DOMAINS (IRQ NUMBER MAPPING LIBRARY)
+M:	Marc Zyngier <marc.zyngier@arm.com>
+S:	Maintained
+T:	git git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git irq/core
+F:	Documentation/IRQ-domain.txt
+F:	include/linux/irqdomain.h
+F:	kernel/irq/irqdomain.c
+F:	kernel/irq/msi.c
+
 IRQ SUBSYSTEM
 M:	Thomas Gleixner <tglx@linutronix.de>
 L:	linux-kernel@vger.kernel.org
@@ -7096,19 +7110,9 @@ M:	Marc Zyngier <marc.zyngier@arm.com>
 L:	linux-kernel@vger.kernel.org
 S:	Maintained
 T:	git git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git irq/core
-T:	git git://git.infradead.org/users/jcooper/linux.git irqchip/core
 F:	Documentation/devicetree/bindings/interrupt-controller/
 F:	drivers/irqchip/
 
-IRQ DOMAINS (IRQ NUMBER MAPPING LIBRARY)
-M:	Marc Zyngier <marc.zyngier@arm.com>
-S:	Maintained
-T:	git git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git irq/core
-F:	Documentation/IRQ-domain.txt
-F:	include/linux/irqdomain.h
-F:	kernel/irq/irqdomain.c
-F:	kernel/irq/msi.c
-
 ISA
 M:	William Breathitt Gray <vilhelm.gray@gmail.com>
 S:	Maintained
@@ -7116,13 +7120,6 @@ F:	Documentation/isa.txt
 F:	drivers/base/isa.c
 F:	include/linux/isa.h
 
-ISAPNP
-M:	Jaroslav Kysela <perex@perex.cz>
-S:	Maintained
-F:	Documentation/isapnp.txt
-F:	drivers/pnp/isapnp/
-F:	include/linux/isapnp.h
-
 ISA RADIO MODULE
 M:	Hans Verkuil <hverkuil@xs4all.nl>
 L:	linux-media@vger.kernel.org
@@ -7131,11 +7128,12 @@ W:	https://linuxtv.org
 S:	Maintained
 F:	drivers/media/radio/radio-isa*
 
-iSCSI BOOT FIRMWARE TABLE (iBFT) DRIVER
-M:	Peter Jones <pjones@redhat.com>
-M:	Konrad Rzeszutek Wilk <konrad@kernel.org>
+ISAPNP
+M:	Jaroslav Kysela <perex@perex.cz>
 S:	Maintained
-F:	drivers/firmware/iscsi_ibft*
+F:	Documentation/isapnp.txt
+F:	drivers/pnp/isapnp/
+F:	include/linux/isapnp.h
 
 ISCSI
 M:	Lee Duncan <lduncan@suse.com>
@@ -7146,6 +7144,12 @@ S:	Maintained
 F:	drivers/scsi/*iscsi*
 F:	include/scsi/*iscsi*
 
+iSCSI BOOT FIRMWARE TABLE (iBFT) DRIVER
+M:	Peter Jones <pjones@redhat.com>
+M:	Konrad Rzeszutek Wilk <konrad@kernel.org>
+S:	Maintained
+F:	drivers/firmware/iscsi_ibft*
+
 ISCSI EXTENSIONS FOR RDMA (ISER) INITIATOR
 M:	Or Gerlitz <ogerlitz@mellanox.com>
 M:	Sagi Grimberg <sagi@grimberg.me>
@@ -7401,27 +7405,6 @@ S:	Maintained
 F:	arch/x86/include/asm/svm.h
 F:	arch/x86/kvm/svm.c
 
-KERNEL VIRTUAL MACHINE (KVM) FOR POWERPC
-M:	Alexander Graf <agraf@suse.com>
-L:	kvm-ppc@vger.kernel.org
-W:	http://www.linux-kvm.org/
-T:	git git://github.com/agraf/linux-2.6.git
-S:	Supported
-F:	arch/powerpc/include/asm/kvm*
-F:	arch/powerpc/kvm/
-
-KERNEL VIRTUAL MACHINE for s390 (KVM/s390)
-M:	Christian Borntraeger <borntraeger@de.ibm.com>
-M:	Cornelia Huck <cohuck@redhat.com>
-L:	linux-s390@vger.kernel.org
-W:	http://www.ibm.com/developerworks/linux/linux390/
-T:	git git://git.kernel.org/pub/scm/linux/kernel/git/kvms390/linux.git
-S:	Supported
-F:	Documentation/s390/kvm.txt
-F:	arch/s390/include/asm/kvm*
-F:	arch/s390/kvm/
-F:	arch/s390/mm/gmap.c
-
 KERNEL VIRTUAL MACHINE (KVM) FOR ARM
 M:	Christoffer Dall <christoffer.dall@linaro.org>
 M:	Marc Zyngier <marc.zyngier@arm.com>
@@ -7436,6 +7419,15 @@ F:	arch/arm/kvm/
 F:	virt/kvm/arm/
 F:	include/kvm/arm_*
 
+KERNEL VIRTUAL MACHINE (KVM) FOR POWERPC
+M:	Alexander Graf <agraf@suse.com>
+L:	kvm-ppc@vger.kernel.org
+W:	http://www.linux-kvm.org/
+T:	git git://github.com/agraf/linux-2.6.git
+S:	Supported
+F:	arch/powerpc/include/asm/kvm*
+F:	arch/powerpc/kvm/
+
 KERNEL VIRTUAL MACHINE FOR ARM64 (KVM/arm64)
 M:	Christoffer Dall <christoffer.dall@linaro.org>
 M:	Marc Zyngier <marc.zyngier@arm.com>
@@ -7454,6 +7446,18 @@ F:	arch/mips/include/uapi/asm/kvm*
 F:	arch/mips/include/asm/kvm*
 F:	arch/mips/kvm/
 
+KERNEL VIRTUAL MACHINE for s390 (KVM/s390)
+M:	Christian Borntraeger <borntraeger@de.ibm.com>
+M:	Cornelia Huck <cohuck@redhat.com>
+L:	linux-s390@vger.kernel.org
+W:	http://www.ibm.com/developerworks/linux/linux390/
+T:	git git://git.kernel.org/pub/scm/linux/kernel/git/kvms390/linux.git
+S:	Supported
+F:	Documentation/s390/kvm.txt
+F:	arch/s390/include/asm/kvm*
+F:	arch/s390/kvm/
+F:	arch/s390/mm/gmap.c
+
 KERNFS
 M:	Greg Kroah-Hartman <gregkh@linuxfoundation.org>
 M:	Tejun Heo <tj@kernel.org>
@@ -7471,17 +7475,15 @@ F:	include/linux/kexec.h
 F:	include/uapi/linux/kexec.h
 F:	kernel/kexec*
 
-KEYS/KEYRINGS:
-M:	David Howells <dhowells@redhat.com>
+KEYS-ENCRYPTED
+M:	Mimi Zohar <zohar@linux.vnet.ibm.com>
+M:	David Safford <safford@us.ibm.com>
+L:	linux-security-module@vger.kernel.org
 L:	keyrings@vger.kernel.org
-S:	Maintained
-F:	Documentation/security/keys/core.rst
-F:	include/linux/key.h
-F:	include/linux/key-type.h
-F:	include/linux/keyctl.h
-F:	include/uapi/linux/keyctl.h
-F:	include/keys/
-F:	security/keys/
+S:	Supported
+F:	Documentation/security/keys/trusted-encrypted.rst
+F:	include/keys/encrypted-type.h
+F:	security/keys/encrypted-keys/
 
 KEYS-TRUSTED
 M:	David Safford <safford@us.ibm.com>
@@ -7494,15 +7496,17 @@ F:	include/keys/trusted-type.h
 F:	security/keys/trusted.c
 F:	security/keys/trusted.h
 
-KEYS-ENCRYPTED
-M:	Mimi Zohar <zohar@linux.vnet.ibm.com>
-M:	David Safford <safford@us.ibm.com>
-L:	linux-security-module@vger.kernel.org
+KEYS/KEYRINGS:
+M:	David Howells <dhowells@redhat.com>
 L:	keyrings@vger.kernel.org
-S:	Supported
-F:	Documentation/security/keys/trusted-encrypted.rst
-F:	include/keys/encrypted-type.h
-F:	security/keys/encrypted-keys/
+S:	Maintained
+F:	Documentation/security/keys/core.rst
+F:	include/linux/key.h
+F:	include/linux/key-type.h
+F:	include/linux/keyctl.h
+F:	include/uapi/linux/keyctl.h
+F:	include/keys/
+F:	security/keys/
 
 KGDB / KDB /debug_core
 M:	Jason Wessel <jason.wessel@windriver.com>
@@ -7535,6 +7539,15 @@ F:	include/linux/kmemleak.h
 F:	mm/kmemleak.c
 F:	mm/kmemleak-test.c
 
+KMOD MODULE USERMODE HELPER
+M:	"Luis R. Rodriguez" <mcgrof@kernel.org>
+L:	linux-kernel@vger.kernel.org
+S:	Maintained
+F:	kernel/kmod.c
+F:	include/linux/kmod.h
+F:	lib/test_kmod.c
+F:	tools/testing/selftests/kmod/
+
 KPROBES
 M:	Ananth N Mavinakayanahalli <ananth@linux.vnet.ibm.com>
 M:	Anil S Keshavamurthy <anil.s.keshavamurthy@intel.com>
@@ -7637,16 +7650,6 @@ F:	drivers/lguest/
 F:	include/linux/lguest*.h
 F:	tools/lguest/
 
-LIBATA SUBSYSTEM (Serial and Parallel ATA drivers)
-M:	Tejun Heo <tj@kernel.org>
-L:	linux-ide@vger.kernel.org
-T:	git git://git.kernel.org/pub/scm/linux/kernel/git/tj/libata.git
-S:	Maintained
-F:	drivers/ata/
-F:	include/linux/ata.h
-F:	include/linux/libata.h
-F:	Documentation/devicetree/bindings/ata/
-
 LIBATA PATA ARASAN COMPACT FLASH CONTROLLER
 M:	Viresh Kumar <vireshk@kernel.org>
 L:	linux-ide@vger.kernel.org
@@ -7690,22 +7693,21 @@ T:	git git://git.kernel.org/pub/scm/linux/kernel/git/tj/libata.git
 S:	Maintained
 F:	drivers/ata/sata_promise.*
 
+LIBATA SUBSYSTEM (Serial and Parallel ATA drivers)
+M:	Tejun Heo <tj@kernel.org>
+L:	linux-ide@vger.kernel.org
+T:	git git://git.kernel.org/pub/scm/linux/kernel/git/tj/libata.git
+S:	Maintained
+F:	drivers/ata/
+F:	include/linux/ata.h
+F:	include/linux/libata.h
+F:	Documentation/devicetree/bindings/ata/
+
 LIBLOCKDEP
 M:	Sasha Levin <alexander.levin@verizon.com>
 S:	Maintained
 F:	tools/lib/lockdep/
 
-LIBNVDIMM: NON-VOLATILE MEMORY DEVICE SUBSYSTEM
-M:	Dan Williams <dan.j.williams@intel.com>
-L:	linux-nvdimm@lists.01.org
-Q:	https://patchwork.kernel.org/project/linux-nvdimm/list/
-T:	git git://git.kernel.org/pub/scm/linux/kernel/git/nvdimm/nvdimm.git
-S:	Supported
-F:	drivers/nvdimm/*
-F:	include/linux/nd.h
-F:	include/linux/libnvdimm.h
-F:	include/uapi/linux/ndctl.h
-
 LIBNVDIMM BLK: MMIO-APERTURE DRIVER
 M:	Ross Zwisler <ross.zwisler@linux.intel.com>
 L:	linux-nvdimm@lists.01.org
@@ -7713,7 +7715,6 @@ Q:	https://patchwork.kernel.org/project/linux-nvdimm/list/
 S:	Supported
 F:	drivers/nvdimm/blk.c
 F:	drivers/nvdimm/region_devs.c
-F:	drivers/acpi/nfit*
 
 LIBNVDIMM BTT: BLOCK TRANSLATION TABLE
 M:	Vishal Verma <vishal.l.verma@intel.com>
@@ -7729,6 +7730,18 @@ Q:	https://patchwork.kernel.org/project/linux-nvdimm/list/
 S:	Supported
 F:	drivers/nvdimm/pmem*
 
+LIBNVDIMM: NON-VOLATILE MEMORY DEVICE SUBSYSTEM
+M:	Dan Williams <dan.j.williams@intel.com>
+L:	linux-nvdimm@lists.01.org
+Q:	https://patchwork.kernel.org/project/linux-nvdimm/list/
+T:	git git://git.kernel.org/pub/scm/linux/kernel/git/nvdimm/nvdimm.git
+S:	Supported
+F:	drivers/nvdimm/*
+F:	drivers/acpi/nfit/*
+F:	include/linux/nd.h
+F:	include/linux/libnvdimm.h
+F:	include/uapi/linux/ndctl.h
+
 LIGHTNVM PLATFORM SUPPORT
 M:	Matias Bjorling <mb@lightnvm.io>
 W:	http://github/OpenChannelSSD
@@ -7738,6 +7751,14 @@ F:	drivers/lightnvm/
 F:	include/linux/lightnvm.h
 F:	include/uapi/linux/lightnvm.h
 
+LINUX FOR POWER MACINTOSH
+M:	Benjamin Herrenschmidt <benh@kernel.crashing.org>
+W:	http://www.penguinppc.org/
+L:	linuxppc-dev@lists.ozlabs.org
+S:	Maintained
+F:	arch/powerpc/platforms/powermac/
+F:	drivers/macintosh/
+
 LINUX FOR POWERPC (32-BIT AND 64-BIT)
 M:	Benjamin Herrenschmidt <benh@kernel.crashing.org>
 M:	Paul Mackerras <paulus@samba.org>
@@ -7771,14 +7792,6 @@ N:	powernv
 N:	[^a-z0-9]ps3
 N:	pseries
 
-LINUX FOR POWER MACINTOSH
-M:	Benjamin Herrenschmidt <benh@kernel.crashing.org>
-W:	http://www.penguinppc.org/
-L:	linuxppc-dev@lists.ozlabs.org
-S:	Maintained
-F:	arch/powerpc/platforms/powermac/
-F:	drivers/macintosh/
-
 LINUX FOR POWERPC EMBEDDED MPC5XXX
 M:	Anatolij Gustschin <agust@denx.de>
 L:	linuxppc-dev@lists.ozlabs.org
@@ -7796,19 +7809,6 @@ S:	Maintained
 F:	arch/powerpc/platforms/40x/
 F:	arch/powerpc/platforms/44x/
 
-LINUX FOR POWERPC EMBEDDED XILINX VIRTEX
-L:	linuxppc-dev@lists.ozlabs.org
-S:	Orphan
-F:	arch/powerpc/*/*virtex*
-F:	arch/powerpc/*/*/*virtex*
-
-LINUX FOR POWERPC EMBEDDED PPC8XX
-M:	Vitaly Bordug <vitb@kernel.crashing.org>
-W:	http://www.penguinppc.org/
-L:	linuxppc-dev@lists.ozlabs.org
-S:	Maintained
-F:	arch/powerpc/platforms/8xx/
-
 LINUX FOR POWERPC EMBEDDED PPC83XX AND PPC85XX
 M:	Scott Wood <oss@buserror.net>
 M:	Kumar Gala <galak@kernel.crashing.org>
@@ -7820,6 +7820,19 @@ F:	arch/powerpc/platforms/83xx/
 F:	arch/powerpc/platforms/85xx/
 F:	Documentation/devicetree/bindings/powerpc/fsl/
 
+LINUX FOR POWERPC EMBEDDED PPC8XX
+M:	Vitaly Bordug <vitb@kernel.crashing.org>
+W:	http://www.penguinppc.org/
+L:	linuxppc-dev@lists.ozlabs.org
+S:	Maintained
+F:	arch/powerpc/platforms/8xx/
+
+LINUX FOR POWERPC EMBEDDED XILINX VIRTEX
+L:	linuxppc-dev@lists.ozlabs.org
+S:	Orphan
+F:	arch/powerpc/*/*virtex*
+F:	arch/powerpc/*/*/*virtex*
+
 LINUX FOR POWERPC PA SEMI PWRFICIENT
 L:	linuxppc-dev@lists.ozlabs.org
 S:	Orphan
@@ -7827,6 +7840,11 @@ F:	arch/powerpc/platforms/pasemi/
 F:	drivers/*/*pasemi*
 F:	drivers/*/*/*pasemi*
 
+LINUX KERNEL DUMP TEST MODULE (LKDTM)
+M:	Kees Cook <keescook@chromium.org>
+S:	Maintained
+F:	drivers/misc/lkdtm*
+
 LINUX SECURITY MODULE (LSM) FRAMEWORK
 M:	Chris Wright <chrisw@sous-sol.org>
 L:	linux-security-module@vger.kernel.org
@@ -7856,11 +7874,6 @@ F:	samples/livepatch/
 L:	live-patching@vger.kernel.org
 T:	git git://git.kernel.org/pub/scm/linux/kernel/git/jikos/livepatching.git
 
-LINUX KERNEL DUMP TEST MODULE (LKDTM)
-M:	Kees Cook <keescook@chromium.org>
-S:	Maintained
-F:	drivers/misc/lkdtm*
-
 LLC (802.2)
 L:	netdev@vger.kernel.org
 S:	Odd fixes
@@ -7913,6 +7926,13 @@ Q:	http://patchwork.linuxtv.org/project/linux-media/list/
 S:	Maintained
 F:	drivers/media/usb/dvb-usb-v2/lmedm04*
 
+LOADPIN SECURITY MODULE
+M:	Kees Cook <keescook@chromium.org>
+T:	git git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux.git lsm/loadpin
+S:	Supported
+F:	security/loadpin/
+F:	Documentation/admin-guide/LSM/LoadPin.rst
+
 LOCKING PRIMITIVES
 M:	Peter Zijlstra <peterz@infradead.org>
 M:	Ingo Molnar <mingo@redhat.com>
@@ -8203,14 +8223,6 @@ S:	Maintained
 F:	Documentation/devicetree/bindings/sound/max9860.txt
 F:	sound/soc/codecs/max9860.*
 
-MAXIM MUIC CHARGER DRIVERS FOR EXYNOS BASED BOARDS
-M:	Krzysztof Kozlowski <krzk@kernel.org>
-M:	Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
-L:	linux-pm@vger.kernel.org
-S:	Supported
-F:	drivers/power/supply/max14577_charger.c
-F:	drivers/power/supply/max77693_charger.c
-
 MAXIM MAX77802 PMIC REGULATOR DEVICE DRIVER
 M:	Javier Martinez Canillas <javier@dowhile0.org>
 L:	linux-kernel@vger.kernel.org
@@ -8219,6 +8231,14 @@ F:	drivers/regulator/max77802-regulator.c
 F:	Documentation/devicetree/bindings/*/*max77802.txt
 F:	include/dt-bindings/*/*max77802.h
 
+MAXIM MUIC CHARGER DRIVERS FOR EXYNOS BASED BOARDS
+M:	Krzysztof Kozlowski <krzk@kernel.org>
+M:	Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
+L:	linux-pm@vger.kernel.org
+S:	Supported
+F:	drivers/power/supply/max14577_charger.c
+F:	drivers/power/supply/max77693_charger.c
+
 MAXIM PMIC AND MUIC DRIVERS FOR EXYNOS BASED BOARDS
 M:	Chanwoo Choi <cw00.choi@samsung.com>
 M:	Krzysztof Kozlowski <krzk@kernel.org>
@@ -8261,14 +8281,25 @@ L:	linux-iio@vger.kernel.org
 S:	Maintained
 F:	drivers/iio/dac/cio-dac.c
 
-MEDIA DRIVERS FOR RENESAS - DRIF
-M:	Ramesh Shanmugasundaram <ramesh.shanmugasundaram@bp.renesas.com>
+MEDIA DRIVERS FOR ASCOT2E
+M:	Sergey Kozlov <serjk@netup.ru>
+M:	Abylay Ospan <aospan@netup.ru>
 L:	linux-media@vger.kernel.org
-L:	linux-renesas-soc@vger.kernel.org
+W:	https://linuxtv.org
+W:	http://netup.tv/
 T:	git git://linuxtv.org/media_tree.git
 S:	Supported
-F:	Documentation/devicetree/bindings/media/renesas,drif.txt
-F:	drivers/media/platform/rcar_drif.c
+F:	drivers/media/dvb-frontends/ascot2e*
+
+MEDIA DRIVERS FOR CXD2841ER
+M:	Sergey Kozlov <serjk@netup.ru>
+M:	Abylay Ospan <aospan@netup.ru>
+L:	linux-media@vger.kernel.org
+W:	https://linuxtv.org
+W:	http://netup.tv/
+T:	git git://linuxtv.org/media_tree.git
+S:	Supported
+F:	drivers/media/dvb-frontends/cxd2841er*
 
 MEDIA DRIVERS FOR FREESCALE IMX
 M:	Steve Longerbeam <slongerbeam@gmail.com>
@@ -8282,43 +8313,6 @@ F:	drivers/staging/media/imx/
 F:	include/linux/imx-media.h
 F:	include/media/imx.h
 
-MEDIA DRIVERS FOR RENESAS - FCP
-M:	Laurent Pinchart <laurent.pinchart@ideasonboard.com>
-L:	linux-media@vger.kernel.org
-L:	linux-renesas-soc@vger.kernel.org
-T:	git git://linuxtv.org/media_tree.git
-S:	Supported
-F:	Documentation/devicetree/bindings/media/renesas,fcp.txt
-F:	drivers/media/platform/rcar-fcp.c
-F:	include/media/rcar-fcp.h
-
-MEDIA DRIVERS FOR RENESAS - FDP1
-M:	Kieran Bingham <kieran@bingham.xyz>
-L:	linux-media@vger.kernel.org
-L:	linux-renesas-soc@vger.kernel.org
-T:	git git://linuxtv.org/media_tree.git
-S:	Supported
-F:	Documentation/devicetree/bindings/media/renesas,fdp1.txt
-F:	drivers/media/platform/rcar_fdp1.c
-
-MEDIA DRIVERS FOR RENESAS - VIN
-M:	Niklas Söderlund <niklas.soderlund@ragnatech.se>
-L:	linux-media@vger.kernel.org
-L:	linux-renesas-soc@vger.kernel.org
-T:	git git://linuxtv.org/media_tree.git
-S:	Supported
-F:	Documentation/devicetree/bindings/media/rcar_vin.txt
-F:	drivers/media/platform/rcar-vin/
-
-MEDIA DRIVERS FOR RENESAS - VSP1
-M:	Laurent Pinchart <laurent.pinchart@ideasonboard.com>
-L:	linux-media@vger.kernel.org
-L:	linux-renesas-soc@vger.kernel.org
-T:	git git://linuxtv.org/media_tree.git
-S:	Supported
-F:	Documentation/devicetree/bindings/media/renesas,vsp1.txt
-F:	drivers/media/platform/vsp1/
-
 MEDIA DRIVERS FOR HELENE
 M:	Abylay Ospan <aospan@netup.ru>
 L:	linux-media@vger.kernel.org
@@ -8328,7 +8322,7 @@ T:	git git://linuxtv.org/media_tree.git
 S:	Supported
 F:	drivers/media/dvb-frontends/helene*
 
-MEDIA DRIVERS FOR ASCOT2E
+MEDIA DRIVERS FOR HORUS3A
 M:	Sergey Kozlov <serjk@netup.ru>
 M:	Abylay Ospan <aospan@netup.ru>
 L:	linux-media@vger.kernel.org
@@ -8336,9 +8330,9 @@ W:	https://linuxtv.org
 W:	http://netup.tv/
 T:	git git://linuxtv.org/media_tree.git
 S:	Supported
-F:	drivers/media/dvb-frontends/ascot2e*
+F:	drivers/media/dvb-frontends/horus3a*
 
-MEDIA DRIVERS FOR CXD2841ER
+MEDIA DRIVERS FOR LNBH25
 M:	Sergey Kozlov <serjk@netup.ru>
 M:	Abylay Ospan <aospan@netup.ru>
 L:	linux-media@vger.kernel.org
@@ -8346,9 +8340,9 @@ W:	https://linuxtv.org
 W:	http://netup.tv/
 T:	git git://linuxtv.org/media_tree.git
 S:	Supported
-F:	drivers/media/dvb-frontends/cxd2841er*
+F:	drivers/media/dvb-frontends/lnbh25*
 
-MEDIA DRIVERS FOR HORUS3A
+MEDIA DRIVERS FOR NETUP PCI UNIVERSAL DVB devices
 M:	Sergey Kozlov <serjk@netup.ru>
 M:	Abylay Ospan <aospan@netup.ru>
 L:	linux-media@vger.kernel.org
@@ -8356,27 +8350,53 @@ W:	https://linuxtv.org
 W:	http://netup.tv/
 T:	git git://linuxtv.org/media_tree.git
 S:	Supported
-F:	drivers/media/dvb-frontends/horus3a*
+F:	drivers/media/pci/netup_unidvb/*
 
-MEDIA DRIVERS FOR LNBH25
-M:	Sergey Kozlov <serjk@netup.ru>
-M:	Abylay Ospan <aospan@netup.ru>
+MEDIA DRIVERS FOR RENESAS - DRIF
+M:	Ramesh Shanmugasundaram <ramesh.shanmugasundaram@bp.renesas.com>
 L:	linux-media@vger.kernel.org
-W:	https://linuxtv.org
-W:	http://netup.tv/
+L:	linux-renesas-soc@vger.kernel.org
 T:	git git://linuxtv.org/media_tree.git
 S:	Supported
-F:	drivers/media/dvb-frontends/lnbh25*
+F:	Documentation/devicetree/bindings/media/renesas,drif.txt
+F:	drivers/media/platform/rcar_drif.c
 
-MEDIA DRIVERS FOR NETUP PCI UNIVERSAL DVB devices
-M:	Sergey Kozlov <serjk@netup.ru>
-M:	Abylay Ospan <aospan@netup.ru>
+MEDIA DRIVERS FOR RENESAS - FCP
+M:	Laurent Pinchart <laurent.pinchart@ideasonboard.com>
 L:	linux-media@vger.kernel.org
-W:	https://linuxtv.org
-W:	http://netup.tv/
+L:	linux-renesas-soc@vger.kernel.org
 T:	git git://linuxtv.org/media_tree.git
 S:	Supported
-F:	drivers/media/pci/netup_unidvb/*
+F:	Documentation/devicetree/bindings/media/renesas,fcp.txt
+F:	drivers/media/platform/rcar-fcp.c
+F:	include/media/rcar-fcp.h
+
+MEDIA DRIVERS FOR RENESAS - FDP1
+M:	Kieran Bingham <kieran@bingham.xyz>
+L:	linux-media@vger.kernel.org
+L:	linux-renesas-soc@vger.kernel.org
+T:	git git://linuxtv.org/media_tree.git
+S:	Supported
+F:	Documentation/devicetree/bindings/media/renesas,fdp1.txt
+F:	drivers/media/platform/rcar_fdp1.c
+
+MEDIA DRIVERS FOR RENESAS - VIN
+M:	Niklas Söderlund <niklas.soderlund@ragnatech.se>
+L:	linux-media@vger.kernel.org
+L:	linux-renesas-soc@vger.kernel.org
+T:	git git://linuxtv.org/media_tree.git
+S:	Supported
+F:	Documentation/devicetree/bindings/media/rcar_vin.txt
+F:	drivers/media/platform/rcar-vin/
+
+MEDIA DRIVERS FOR RENESAS - VSP1
+M:	Laurent Pinchart <laurent.pinchart@ideasonboard.com>
+L:	linux-media@vger.kernel.org
+L:	linux-renesas-soc@vger.kernel.org
+T:	git git://linuxtv.org/media_tree.git
+S:	Supported
+F:	Documentation/devicetree/bindings/media/renesas,vsp1.txt
+F:	drivers/media/platform/vsp1/
 
 MEDIA INPUT INFRASTRUCTURE (V4L/DVB)
 M:	Mauro Carvalho Chehab <mchehab@s-opensource.com>
@@ -8415,15 +8435,6 @@ S:	Supported
 F:	drivers/media/platform/mtk-jpeg/
 F:	Documentation/devicetree/bindings/media/mediatek-jpeg-decoder.txt
 
-MEDIATEK MEDIA DRIVER
-M:	Tiffany Lin <tiffany.lin@mediatek.com>
-M:	Andrew-CT Chen <andrew-ct.chen@mediatek.com>
-S:	Supported
-F:	drivers/media/platform/mtk-vcodec/
-F:	drivers/media/platform/mtk-vpu/
-F:	Documentation/devicetree/bindings/media/mediatek-vcodec.txt
-F:	Documentation/devicetree/bindings/media/mediatek-vpu.txt
-
 MEDIATEK MDP DRIVER
 M:	Minghsiu Tsai <minghsiu.tsai@mediatek.com>
 M:	Houlong Wei <houlong.wei@mediatek.com>
@@ -8433,6 +8444,15 @@ F:	drivers/media/platform/mtk-mdp/
 F:	drivers/media/platform/mtk-vpu/
 F:	Documentation/devicetree/bindings/media/mediatek-mdp.txt
 
+MEDIATEK MEDIA DRIVER
+M:	Tiffany Lin <tiffany.lin@mediatek.com>
+M:	Andrew-CT Chen <andrew-ct.chen@mediatek.com>
+S:	Supported
+F:	drivers/media/platform/mtk-vcodec/
+F:	drivers/media/platform/mtk-vpu/
+F:	Documentation/devicetree/bindings/media/mediatek-vcodec.txt
+F:	Documentation/devicetree/bindings/media/mediatek-vpu.txt
+
 MEDIATEK MT7601U WIRELESS LAN DRIVER
 M:	Jakub Kicinski <kubakici@wp.pl>
 L:	linux-wireless@vger.kernel.org
@@ -8440,9 +8460,9 @@ S:	Maintained
 F:	drivers/net/wireless/mediatek/mt7601u/
 
 MEDIATEK RANDOM NUMBER GENERATOR SUPPORT
-M:      Sean Wang <sean.wang@mediatek.com>
-S:      Maintained
-F:      drivers/char/hw_random/mtk-rng.c
+M:	Sean Wang <sean.wang@mediatek.com>
+S:	Maintained
+F:	drivers/char/hw_random/mtk-rng.c
 
 MEGACHIPS STDPXXXX-GE-B850V3-FW LVDS/DP++ BRIDGES
 M:	Peter Senna Tschudin <peter.senna@collabora.com>
@@ -8464,6 +8484,13 @@ F:	Documentation/scsi/megaraid.txt
 F:	drivers/scsi/megaraid.*
 F:	drivers/scsi/megaraid/
 
+MELEXIS MLX90614 DRIVER
+M:	Crt Mori <cmo@melexis.com>
+L:	linux-iio@vger.kernel.org
+W:	http://www.melexis.com
+S:	Supported
+F:	drivers/iio/temperature/mlx90614.c
+
 MELFAS MIP4 TOUCHSCREEN DRIVER
 M:	Sangwon Jee <jeesw@melfas.com>
 W:	http://www.melfas.com
@@ -8524,6 +8551,56 @@ W:	http://www.mellanox.com
 Q:	http://patchwork.ozlabs.org/project/netdev/list/
 F:	drivers/net/ethernet/mellanox/mlxfw/
 
+MELLANOX MLX CPLD HOTPLUG DRIVER
+M:	Vadim Pasternak <vadimp@mellanox.com>
+L:	platform-driver-x86@vger.kernel.org
+S:	Supported
+F:	drivers/platform/x86/mlxcpld-hotplug.c
+F:	include/linux/platform_data/mlxcpld-hotplug.h
+
+MELLANOX MLX4 core VPI driver
+M:	Tariq Toukan <tariqt@mellanox.com>
+L:	netdev@vger.kernel.org
+L:	linux-rdma@vger.kernel.org
+W:	http://www.mellanox.com
+Q:	http://patchwork.ozlabs.org/project/netdev/list/
+S:	Supported
+F:	drivers/net/ethernet/mellanox/mlx4/
+F:	include/linux/mlx4/
+
+MELLANOX MLX4 IB driver
+M:	Yishai Hadas <yishaih@mellanox.com>
+L:	linux-rdma@vger.kernel.org
+W:	http://www.mellanox.com
+Q:	http://patchwork.kernel.org/project/linux-rdma/list/
+S:	Supported
+F:	drivers/infiniband/hw/mlx4/
+F:	include/linux/mlx4/
+F:	include/uapi/rdma/mlx4-abi.h
+
+MELLANOX MLX5 core VPI driver
+M:	Saeed Mahameed <saeedm@mellanox.com>
+M:	Matan Barak <matanb@mellanox.com>
+M:	Leon Romanovsky <leonro@mellanox.com>
+L:	netdev@vger.kernel.org
+L:	linux-rdma@vger.kernel.org
+W:	http://www.mellanox.com
+Q:	http://patchwork.ozlabs.org/project/netdev/list/
+S:	Supported
+F:	drivers/net/ethernet/mellanox/mlx5/core/
+F:	include/linux/mlx5/
+
+MELLANOX MLX5 IB driver
+M:	Matan Barak <matanb@mellanox.com>
+M:	Leon Romanovsky <leonro@mellanox.com>
+L:	linux-rdma@vger.kernel.org
+W:	http://www.mellanox.com
+Q:	http://patchwork.kernel.org/project/linux-rdma/list/
+S:	Supported
+F:	drivers/infiniband/hw/mlx5/
+F:	include/linux/mlx5/
+F:	include/uapi/rdma/mlx5-abi.h
+
 MELLANOX MLXCPLD I2C AND MUX DRIVER
 M:	Vadim Pasternak <vadimp@mellanox.com>
 M:	Michael Shych <michaelsh@mellanox.com>
@@ -8541,26 +8618,10 @@ F:	drivers/leds/leds-mlxcpld.c
 F:	Documentation/leds/leds-mlxcpld.txt
 
 MELLANOX PLATFORM DRIVER
-M:      Vadim Pasternak <vadimp@mellanox.com>
-L:      platform-driver-x86@vger.kernel.org
-S:      Supported
-F:      drivers/platform/x86/mlx-platform.c
-
-MELLANOX MLX CPLD HOTPLUG DRIVER
 M:	Vadim Pasternak <vadimp@mellanox.com>
 L:	platform-driver-x86@vger.kernel.org
 S:	Supported
-F:	drivers/platform/x86/mlxcpld-hotplug.c
-F:	include/linux/platform_data/mlxcpld-hotplug.h
-
-SOFT-ROCE DRIVER (rxe)
-M:	Moni Shoua <monis@mellanox.com>
-L:	linux-rdma@vger.kernel.org
-S:	Supported
-W:	https://github.com/SoftRoCE/rxe-dev/wiki/rxe-dev:-Home
-Q:	http://patchwork.kernel.org/project/linux-rdma/list/
-F:	drivers/infiniband/sw/rxe/
-F:	include/uapi/rdma/rdma_user_rxe.h
+F:	drivers/platform/x86/mlx-platform.c
 
 MEMBARRIER SUPPORT
 M:	Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
@@ -8682,6 +8743,18 @@ S:	Maintained
 F:	drivers/usb/misc/usb251xb.c
 F:	Documentation/devicetree/bindings/usb/usb251xb.txt
 
+MICROSEMI SMART ARRAY SMARTPQI DRIVER (smartpqi)
+M:	Don Brace <don.brace@microsemi.com>
+L:	esc.storagedev@microsemi.com
+L:	linux-scsi@vger.kernel.org
+S:	Supported
+F:	drivers/scsi/smartpqi/smartpqi*.[ch]
+F:	drivers/scsi/smartpqi/Kconfig
+F:	drivers/scsi/smartpqi/Makefile
+F:	include/linux/cciss*.h
+F:	include/uapi/linux/cciss*.h
+F:	Documentation/scsi/smartpqi.txt
+
 MICROSOFT SURFACE PRO 3 BUTTON DRIVER
 M:	Chen Yu <yu.c.chen@intel.com>
 L:	platform-driver-x86@vger.kernel.org
@@ -8704,6 +8777,22 @@ F:	Documentation/devicetree/bindings/mips/
 F:	Documentation/mips/
 F:	arch/mips/
 
+MIPS BOSTON DEVELOPMENT BOARD
+M:	Paul Burton <paul.burton@imgtec.com>
+L:	linux-mips@linux-mips.org
+S:	Maintained
+F:	Documentation/devicetree/bindings/clock/img,boston-clock.txt
+F:	arch/mips/boot/dts/img/boston.dts
+F:	arch/mips/configs/generic/board-boston.config
+F:	drivers/clk/imgtec/clk-boston.c
+F:	include/dt-bindings/clock/boston-clock.h
+
+MIPS GENERIC PLATFORM
+M:	Paul Burton <paul.burton@imgtec.com>
+L:	linux-mips@linux-mips.org
+S:	Supported
+F:	arch/mips/generic/
+
 MIPS/LOONGSON1 ARCHITECTURE
 M:	Keguang Zhang <keguang.zhang@gmail.com>
 L:	linux-mips@linux-mips.org
@@ -8721,67 +8810,15 @@ W:	https://linuxtv.org
 S:	Odd Fixes
 F:	drivers/media/radio/radio-miropcm20*
 
-MELLANOX MLX4 core VPI driver
-M:	Tariq Toukan <tariqt@mellanox.com>
-L:	netdev@vger.kernel.org
-L:	linux-rdma@vger.kernel.org
-W:	http://www.mellanox.com
-Q:	http://patchwork.ozlabs.org/project/netdev/list/
-S:	Supported
-F:	drivers/net/ethernet/mellanox/mlx4/
-F:	include/linux/mlx4/
-
-MELLANOX MLX4 IB driver
-M:	Yishai Hadas <yishaih@mellanox.com>
-L:	linux-rdma@vger.kernel.org
-W:	http://www.mellanox.com
-Q:	http://patchwork.kernel.org/project/linux-rdma/list/
-S:	Supported
-F:	drivers/infiniband/hw/mlx4/
-F:	include/linux/mlx4/
-F:	include/uapi/rdma/mlx4-abi.h
-
-MELLANOX MLX5 core VPI driver
-M:	Saeed Mahameed <saeedm@mellanox.com>
-M:	Matan Barak <matanb@mellanox.com>
-M:	Leon Romanovsky <leonro@mellanox.com>
-L:	netdev@vger.kernel.org
-L:	linux-rdma@vger.kernel.org
-W:	http://www.mellanox.com
-Q:	http://patchwork.ozlabs.org/project/netdev/list/
-S:	Supported
-F:	drivers/net/ethernet/mellanox/mlx5/core/
-F:	include/linux/mlx5/
-
-MELLANOX MLX5 IB driver
-M:	Matan Barak <matanb@mellanox.com>
-M:	Leon Romanovsky <leonro@mellanox.com>
-L:	linux-rdma@vger.kernel.org
-W:	http://www.mellanox.com
-Q:	http://patchwork.kernel.org/project/linux-rdma/list/
-S:	Supported
-F:	drivers/infiniband/hw/mlx5/
-F:	include/linux/mlx5/
-F:	include/uapi/rdma/mlx5-abi.h
-
-MELEXIS MLX90614 DRIVER
-M:	Crt Mori <cmo@melexis.com>
-L:	linux-iio@vger.kernel.org
-W:	http://www.melexis.com
-S:	Supported
-F:	drivers/iio/temperature/mlx90614.c
-
-MICROSEMI SMART ARRAY SMARTPQI DRIVER (smartpqi)
-M:	Don Brace <don.brace@microsemi.com>
-L:	esc.storagedev@microsemi.com
-L:	linux-scsi@vger.kernel.org
-S:	Supported
-F:	drivers/scsi/smartpqi/smartpqi*.[ch]
-F:	drivers/scsi/smartpqi/Kconfig
-F:	drivers/scsi/smartpqi/Makefile
-F:	include/linux/cciss*.h
-F:	include/uapi/linux/cciss*.h
-F:	Documentation/scsi/smartpqi.txt
+MMP SUPPORT
+M:	Eric Miao <eric.y.miao@gmail.com>
+M:	Haojian Zhuang <haojian.zhuang@gmail.com>
+L:	linux-arm-kernel@lists.infradead.org (moderated for non-subscribers)
+T:	git git://github.com/hzhuang1/linux.git
+T:	git git://git.linaro.org/people/ycmiao/pxa-linux.git
+S:	Maintained
+F:	arch/arm/boot/dts/mmp*
+F:	arch/arm/mach-mmp/
 
 MN88472 MEDIA DRIVER
 M:	Antti Palosaari <crope@iki.fi>
@@ -8915,6 +8952,11 @@ F:	drivers/mfd/
 F:	include/linux/mfd/
 F:	include/dt-bindings/mfd/
 
+MULTIMEDIA CARD (MMC) ETC. OVER SPI
+S:	Orphan
+F:	drivers/mmc/host/mmc_spi.c
+F:	include/linux/spi/mmc_spi.h
+
 MULTIMEDIA CARD (MMC), SECURE DIGITAL (SD) AND SDIO SUBSYSTEM
 M:	Ulf Hansson <ulf.hansson@linaro.org>
 L:	linux-mmc@vger.kernel.org
@@ -8925,11 +8967,6 @@ F:	drivers/mmc/
 F:	include/linux/mmc/
 F:	include/uapi/linux/mmc/
 
-MULTIMEDIA CARD (MMC) ETC. OVER SPI
-S:	Orphan
-F:	drivers/mmc/host/mmc_spi.c
-F:	include/linux/spi/mmc_spi.h
-
 MULTIPLEXER SUBSYSTEM
 M:	Peter Rosin <peda@axentia.se>
 S:	Maintained
@@ -8992,10 +9029,6 @@ S:	Maintained
 F:	drivers/mtd/nand/
 F:	include/linux/mtd/nand*.h
 
-NATSEMI ETHERNET DRIVER (DP8381x)
-S:	Orphan
-F:	drivers/net/ethernet/natsemi/natsemi.c
-
 NATIVE INSTRUMENTS USB SOUND INTERFACE DRIVER
 M:	Daniel Mack <zonque@gmail.com>
 S:	Maintained
@@ -9003,6 +9036,10 @@ L:	alsa-devel@alsa-project.org (moderated for non-subscribers)
 W:	http://www.native-instruments.com
 F:	sound/usb/caiaq/
 
+NATSEMI ETHERNET DRIVER (DP8381x)
+S:	Orphan
+F:	drivers/net/ethernet/natsemi/natsemi.c
+
 NCP FILESYSTEM
 M:	Petr Vandrovec <petr@vandrovec.name>
 S:	Odd Fixes
@@ -9122,6 +9159,35 @@ S:	Maintained
 W:	https://fedorahosted.org/dropwatch/
 F:	net/core/drop_monitor.c
 
+NETWORKING DRIVERS
+L:	netdev@vger.kernel.org
+W:	http://www.linuxfoundation.org/en/Net
+Q:	http://patchwork.ozlabs.org/project/netdev/list/
+T:	git git://git.kernel.org/pub/scm/linux/kernel/git/davem/net.git
+T:	git git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next.git
+S:	Odd Fixes
+F:	Documentation/devicetree/bindings/net/
+F:	drivers/net/
+F:	include/linux/if_*
+F:	include/linux/netdevice.h
+F:	include/linux/etherdevice.h
+F:	include/linux/fcdevice.h
+F:	include/linux/fddidevice.h
+F:	include/linux/hippidevice.h
+F:	include/linux/inetdevice.h
+F:	include/uapi/linux/if_*
+F:	include/uapi/linux/netdevice.h
+
+NETWORKING DRIVERS (WIRELESS)
+M:	Kalle Valo <kvalo@codeaurora.org>
+L:	linux-wireless@vger.kernel.org
+Q:	http://patchwork.kernel.org/project/linux-wireless/list/
+T:	git git://git.kernel.org/pub/scm/linux/kernel/git/kvalo/wireless-drivers.git
+T:	git git://git.kernel.org/pub/scm/linux/kernel/git/kvalo/wireless-drivers-next.git
+S:	Maintained
+F:	Documentation/devicetree/bindings/net/wireless/
+F:	drivers/net/wireless/
+
 NETWORKING [DSA]
 M:	Andrew Lunn <andrew@lunn.ch>
 M:	Vivien Didelot <vivien.didelot@savoirfairelinux.com>
@@ -9153,28 +9219,6 @@ F:	tools/net/
 F:	tools/testing/selftests/net/
 F:	lib/random32.c
 
-NETWORKING [IPv4/IPv6]
-M:	"David S. Miller" <davem@davemloft.net>
-M:	Alexey Kuznetsov <kuznet@ms2.inr.ac.ru>
-M:	Hideaki YOSHIFUJI <yoshfuji@linux-ipv6.org>
-L:	netdev@vger.kernel.org
-T:	git git://git.kernel.org/pub/scm/linux/kernel/git/davem/net.git
-S:	Maintained
-F:	net/ipv4/
-F:	net/ipv6/
-F:	include/net/ip*
-F:	arch/x86/net/*
-
-NETWORKING [TLS]
-M:	Ilya Lesokhin <ilyal@mellanox.com>
-M:	Aviad Yehezkel <aviadye@mellanox.com>
-M:	Dave Watson <davejwatson@fb.com>
-L:	netdev@vger.kernel.org
-S:	Maintained
-F:	net/tls/*
-F:	include/uapi/linux/tls.h
-F:	include/net/tls.h
-
 NETWORKING [IPSEC]
 M:	Steffen Klassert <steffen.klassert@secunet.com>
 M:	Herbert Xu <herbert@gondor.apana.org.au>
@@ -9199,43 +9243,36 @@ F:	net/ipv6/ip6_vti.c
 F:	include/uapi/linux/xfrm.h
 F:	include/net/xfrm.h
 
+NETWORKING [IPv4/IPv6]
+M:	"David S. Miller" <davem@davemloft.net>
+M:	Alexey Kuznetsov <kuznet@ms2.inr.ac.ru>
+M:	Hideaki YOSHIFUJI <yoshfuji@linux-ipv6.org>
+L:	netdev@vger.kernel.org
+T:	git git://git.kernel.org/pub/scm/linux/kernel/git/davem/net.git
+S:	Maintained
+F:	net/ipv4/
+F:	net/ipv6/
+F:	include/net/ip*
+F:	arch/x86/net/*
+
 NETWORKING [LABELED] (NetLabel, CIPSO, Labeled IPsec, SECMARK)
 M:	Paul Moore <paul@paul-moore.com>
 L:	netdev@vger.kernel.org
 S:	Maintained
 
-NETWORKING [WIRELESS]
-L:	linux-wireless@vger.kernel.org
-Q:	http://patchwork.kernel.org/project/linux-wireless/list/
-
-NETWORKING DRIVERS
+NETWORKING [TLS]
+M:	Ilya Lesokhin <ilyal@mellanox.com>
+M:	Aviad Yehezkel <aviadye@mellanox.com>
+M:	Dave Watson <davejwatson@fb.com>
 L:	netdev@vger.kernel.org
-W:	http://www.linuxfoundation.org/en/Net
-Q:	http://patchwork.ozlabs.org/project/netdev/list/
-T:	git git://git.kernel.org/pub/scm/linux/kernel/git/davem/net.git
-T:	git git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next.git
-S:	Odd Fixes
-F:	Documentation/devicetree/bindings/net/
-F:	drivers/net/
-F:	include/linux/if_*
-F:	include/linux/netdevice.h
-F:	include/linux/etherdevice.h
-F:	include/linux/fcdevice.h
-F:	include/linux/fddidevice.h
-F:	include/linux/hippidevice.h
-F:	include/linux/inetdevice.h
-F:	include/uapi/linux/if_*
-F:	include/uapi/linux/netdevice.h
+S:	Maintained
+F:	net/tls/*
+F:	include/uapi/linux/tls.h
+F:	include/net/tls.h
 
-NETWORKING DRIVERS (WIRELESS)
-M:	Kalle Valo <kvalo@codeaurora.org>
+NETWORKING [WIRELESS]
 L:	linux-wireless@vger.kernel.org
 Q:	http://patchwork.kernel.org/project/linux-wireless/list/
-T:	git git://git.kernel.org/pub/scm/linux/kernel/git/kvalo/wireless-drivers.git
-T:	git git://git.kernel.org/pub/scm/linux/kernel/git/kvalo/wireless-drivers-next.git
-S:	Maintained
-F:	Documentation/devicetree/bindings/net/wireless/
-F:	drivers/net/wireless/
 
 NETXEN (1/10) GbE SUPPORT
 M:	Manish Chopra <manish.chopra@cavium.com>
@@ -9329,14 +9366,6 @@ S:	Maintained
 F:	drivers/media/i2c/et8ek8
 F:	drivers/media/i2c/ad5820.c
 
-NOKIA N900 CAMERA SUPPORT (ET8EK8 SENSOR, AD5820 FOCUS)
-M:	Pavel Machek <pavel@ucw.cz>
-M:	Sakari Ailus <sakari.ailus@iki.fi>
-L:	linux-media@vger.kernel.org
-S:	Maintained
-F:	drivers/media/i2c/et8ek8
-F:	drivers/media/i2c/ad5820.c
-
 NOKIA N900 POWER SUPPLY DRIVERS
 R:	Pali Rohár <pali.rohar@gmail.com>
 F:	include/linux/power/bq2415x_charger.h
@@ -9348,6 +9377,12 @@ F:	drivers/power/supply/bq27xxx_battery_i2c.c
 F:	drivers/power/supply/isp1704_charger.c
 F:	drivers/power/supply/rx51_battery.c
 
+NTB AMD DRIVER
+M:	Shyam Sundar S K <Shyam-sundar.S-k@amd.com>
+L:	linux-ntb@googlegroups.com
+S:	Supported
+F:	drivers/ntb/hw/amd/
+
 NTB DRIVER CORE
 M:	Jon Mason <jdmason@kudzu.us>
 M:	Dave Jiang <dave.jiang@intel.com>
@@ -9362,6 +9397,12 @@ F:	include/linux/ntb.h
 F:	include/linux/ntb_transport.h
 F:	tools/testing/selftests/ntb/
 
+NTB IDT DRIVER
+M:	Serge Semin <fancer.lancer@gmail.com>
+L:	linux-ntb@googlegroups.com
+S:	Supported
+F:	drivers/ntb/hw/idt/
+
 NTB INTEL DRIVER
 M:	Jon Mason <jdmason@kudzu.us>
 M:	Dave Jiang <dave.jiang@intel.com>
@@ -9371,12 +9412,6 @@ W:	https://github.com/jonmason/ntb/wiki
 T:	git git://github.com/jonmason/ntb.git
 F:	drivers/ntb/hw/intel/
 
-NTB AMD DRIVER
-M:	Shyam Sundar S K <Shyam-sundar.S-k@amd.com>
-L:	linux-ntb@googlegroups.com
-S:	Supported
-F:	drivers/ntb/hw/amd/
-
 NTFS FILESYSTEM
 M:	Anton Altaparmakov <anton@tuxera.com>
 L:	linux-ntfs-dev@lists.sourceforge.net
@@ -9406,15 +9441,6 @@ F:	drivers/nvme/host/
 F:	include/linux/nvme.h
 F:	include/uapi/linux/nvme_ioctl.h
 
-NVM EXPRESS TARGET DRIVER
-M:	Christoph Hellwig <hch@lst.de>
-M:	Sagi Grimberg <sagi@grimberg.me>
-L:	linux-nvme@lists.infradead.org
-T:	git://git.infradead.org/nvme.git
-W:	http://git.infradead.org/nvme.git
-S:	Supported
-F:	drivers/nvme/target/
-
 NVM EXPRESS FC TRANSPORT DRIVERS
 M:	James Smart <james.smart@broadcom.com>
 L:	linux-nvme@lists.infradead.org
@@ -9425,6 +9451,15 @@ F:	drivers/nvme/host/fc.c
 F:	drivers/nvme/target/fc.c
 F:	drivers/nvme/target/fcloop.c
 
+NVM EXPRESS TARGET DRIVER
+M:	Christoph Hellwig <hch@lst.de>
+M:	Sagi Grimberg <sagi@grimberg.me>
+L:	linux-nvme@lists.infradead.org
+T:	git://git.infradead.org/nvme.git
+W:	http://git.infradead.org/nvme.git
+S:	Supported
+F:	drivers/nvme/target/
+
 NVMEM FRAMEWORK
 M:	Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
 S:	Maintained
@@ -9433,13 +9468,6 @@ F:	Documentation/devicetree/bindings/nvmem/
 F:	include/linux/nvmem-consumer.h
 F:	include/linux/nvmem-provider.h
 
-NXP-NCI NFC DRIVER
-M:	Clément Perrochaud <clement.perrochaud@effinnov.com>
-R:	Charles Gorand <charles.gorand@effinnov.com>
-L:	linux-nfc@lists.01.org (moderated for non-subscribers)
-S:	Supported
-F:	drivers/nfc/nxp-nci
-
 NXP TDA998X DRM DRIVER
 M:	Russell King <linux@armlinux.org.uk>
 S:	Supported
@@ -9454,55 +9482,31 @@ L:	alsa-devel@alsa-project.org (moderated for non-subscribers)
 S:	Maintained
 F:	sound/soc/codecs/tfa9879*
 
+NXP-NCI NFC DRIVER
+M:	Clément Perrochaud <clement.perrochaud@effinnov.com>
+R:	Charles Gorand <charles.gorand@effinnov.com>
+L:	linux-nfc@lists.01.org (moderated for non-subscribers)
+S:	Supported
+F:	drivers/nfc/nxp-nci
+
 OBJTOOL
 M:	Josh Poimboeuf <jpoimboe@redhat.com>
 S:	Supported
 F:	tools/objtool/
 
-OMAP1 SUPPORT
-M:	Aaro Koskinen <aaro.koskinen@iki.fi>
-M:	Tony Lindgren <tony@atomide.com>
+OMAP AUDIO SUPPORT
+M:	Peter Ujfalusi <peter.ujfalusi@ti.com>
+M:	Jarkko Nikula <jarkko.nikula@bitmer.com>
+L:	alsa-devel@alsa-project.org (moderated for non-subscribers)
 L:	linux-omap@vger.kernel.org
-Q:	http://patchwork.kernel.org/project/linux-omap/list/
-T:	git git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap.git
 S:	Maintained
-F:	arch/arm/mach-omap1/
-F:	arch/arm/plat-omap/
-F:	arch/arm/configs/omap1_defconfig
-F:	drivers/i2c/busses/i2c-omap.c
-F:	include/linux/i2c-omap.h
+F:	sound/soc/omap/
 
-OMAP2+ SUPPORT
-M:	Tony Lindgren <tony@atomide.com>
+OMAP CLOCK FRAMEWORK SUPPORT
+M:	Paul Walmsley <paul@pwsan.com>
 L:	linux-omap@vger.kernel.org
-W:	http://www.muru.com/linux/omap/
-W:	http://linux.omap.com/
-Q:	http://patchwork.kernel.org/project/linux-omap/list/
-T:	git git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap.git
 S:	Maintained
-F:	arch/arm/mach-omap2/
-F:	arch/arm/plat-omap/
-F:	arch/arm/configs/omap2plus_defconfig
-F:	drivers/i2c/busses/i2c-omap.c
-F:	drivers/irqchip/irq-omap-intc.c
-F:	drivers/mfd/*omap*.c
-F:	drivers/mfd/menelaus.c
-F:	drivers/mfd/palmas.c
-F:	drivers/mfd/tps65217.c
-F:	drivers/mfd/tps65218.c
-F:	drivers/mfd/tps65910.c
-F:	drivers/mfd/twl-core.[ch]
-F:	drivers/mfd/twl4030*.c
-F:	drivers/mfd/twl6030*.c
-F:	drivers/mfd/twl6040*.c
-F:	drivers/regulator/palmas-regulator*.c
-F:	drivers/regulator/pbias-regulator.c
-F:	drivers/regulator/tps65217-regulator.c
-F:	drivers/regulator/tps65218-regulator.c
-F:	drivers/regulator/tps65910-regulator.c
-F:	drivers/regulator/twl-regulator.c
-F:	drivers/regulator/twl6030-regulator.c
-F:	include/linux/i2c-omap.h
+F:	arch/arm/*omap*/*clock*
 
 OMAP DEVICE TREE SUPPORT
 M:	Benoît Cousson <bcousson@baylibre.com>
@@ -9516,33 +9520,20 @@ F:	arch/arm/boot/dts/*am4*
 F:	arch/arm/boot/dts/*am5*
 F:	arch/arm/boot/dts/*dra7*
 
-OMAP CLOCK FRAMEWORK SUPPORT
-M:	Paul Walmsley <paul@pwsan.com>
-L:	linux-omap@vger.kernel.org
-S:	Maintained
-F:	arch/arm/*omap*/*clock*
-
-OMAP POWER MANAGEMENT SUPPORT
-M:	Kevin Hilman <khilman@kernel.org>
-L:	linux-omap@vger.kernel.org
-S:	Maintained
-F:	arch/arm/*omap*/*pm*
-F:	drivers/cpufreq/omap-cpufreq.c
-
-OMAP POWERDOMAIN SOC ADAPTATION LAYER SUPPORT
-M:	Rajendra Nayak <rnayak@codeaurora.org>
-M:	Paul Walmsley <paul@pwsan.com>
+OMAP DISPLAY SUBSYSTEM and FRAMEBUFFER SUPPORT (DSS2)
+M:	Tomi Valkeinen <tomi.valkeinen@ti.com>
 L:	linux-omap@vger.kernel.org
+L:	linux-fbdev@vger.kernel.org
 S:	Maintained
-F:	arch/arm/mach-omap2/prm*
+F:	drivers/video/fbdev/omap2/
+F:	Documentation/arm/OMAP/DSS
 
-OMAP AUDIO SUPPORT
-M:	Peter Ujfalusi <peter.ujfalusi@ti.com>
-M:	Jarkko Nikula <jarkko.nikula@bitmer.com>
-L:	alsa-devel@alsa-project.org (moderated for non-subscribers)
+OMAP FRAMEBUFFER SUPPORT
+M:	Tomi Valkeinen <tomi.valkeinen@ti.com>
+L:	linux-fbdev@vger.kernel.org
 L:	linux-omap@vger.kernel.org
 S:	Maintained
-F:	sound/soc/omap/
+F:	drivers/video/fbdev/omap/
 
 OMAP GENERAL PURPOSE MEMORY CONTROLLER SUPPORT
 M:	Roger Quadros <rogerq@ti.com>
@@ -9552,20 +9543,14 @@ S:	Maintained
 F:	drivers/memory/omap-gpmc.c
 F:	arch/arm/mach-omap2/*gpmc*
 
-OMAP FRAMEBUFFER SUPPORT
-M:	Tomi Valkeinen <tomi.valkeinen@ti.com>
-L:	linux-fbdev@vger.kernel.org
-L:	linux-omap@vger.kernel.org
-S:	Maintained
-F:	drivers/video/fbdev/omap/
-
-OMAP DISPLAY SUBSYSTEM and FRAMEBUFFER SUPPORT (DSS2)
-M:	Tomi Valkeinen <tomi.valkeinen@ti.com>
+OMAP GPIO DRIVER
+M:	Grygorii Strashko <grygorii.strashko@ti.com>
+M:	Santosh Shilimkar <ssantosh@kernel.org>
+M:	Kevin Hilman <khilman@kernel.org>
 L:	linux-omap@vger.kernel.org
-L:	linux-fbdev@vger.kernel.org
 S:	Maintained
-F:	drivers/video/fbdev/omap2/
-F:	Documentation/arm/OMAP/DSS
+F:	Documentation/devicetree/bindings/gpio/gpio-omap.txt
+F:	drivers/gpio/gpio-omap.c
 
 OMAP HARDWARE SPINLOCK SUPPORT
 M:	Ohad Ben-Cohen <ohad@wizery.com>
@@ -9573,30 +9558,12 @@ L:	linux-omap@vger.kernel.org
 S:	Maintained
 F:	drivers/hwspinlock/omap_hwspinlock.c
 
-OMAP MMC SUPPORT
-M:	Jarkko Lavinen <jarkko.lavinen@nokia.com>
-L:	linux-omap@vger.kernel.org
-S:	Maintained
-F:	drivers/mmc/host/omap.c
-
 OMAP HS MMC SUPPORT
 L:	linux-mmc@vger.kernel.org
 L:	linux-omap@vger.kernel.org
 S:	Orphan
 F:	drivers/mmc/host/omap_hsmmc.c
 
-OMAP RANDOM NUMBER GENERATOR SUPPORT
-M:	Deepak Saxena <dsaxena@plexity.net>
-S:	Maintained
-F:	drivers/char/hw_random/omap-rng.c
-
-OMAP HWMOD SUPPORT
-M:	Benoît Cousson <bcousson@baylibre.com>
-M:	Paul Walmsley <paul@pwsan.com>
-L:	linux-omap@vger.kernel.org
-S:	Maintained
-F:	arch/arm/mach-omap2/omap_hwmod.*
-
 OMAP HWMOD DATA
 M:	Paul Walmsley <paul@pwsan.com>
 L:	linux-omap@vger.kernel.org
@@ -9609,6 +9576,13 @@ L:	linux-omap@vger.kernel.org
 S:	Maintained
 F:	arch/arm/mach-omap2/omap_hwmod_44xx_data.c
 
+OMAP HWMOD SUPPORT
+M:	Benoît Cousson <bcousson@baylibre.com>
+M:	Paul Walmsley <paul@pwsan.com>
+L:	linux-omap@vger.kernel.org
+S:	Maintained
+F:	arch/arm/mach-omap2/omap_hwmod.*
+
 OMAP IMAGING SUBSYSTEM (OMAP3 ISP and OMAP4 ISS)
 M:	Laurent Pinchart <laurent.pinchart@ideasonboard.com>
 L:	linux-media@vger.kernel.org
@@ -9617,6 +9591,31 @@ F:	Documentation/devicetree/bindings/media/ti,omap3isp.txt
 F:	drivers/media/platform/omap3isp/
 F:	drivers/staging/media/omap4iss/
 
+OMAP MMC SUPPORT
+M:	Jarkko Lavinen <jarkko.lavinen@nokia.com>
+L:	linux-omap@vger.kernel.org
+S:	Maintained
+F:	drivers/mmc/host/omap.c
+
+OMAP POWER MANAGEMENT SUPPORT
+M:	Kevin Hilman <khilman@kernel.org>
+L:	linux-omap@vger.kernel.org
+S:	Maintained
+F:	arch/arm/*omap*/*pm*
+F:	drivers/cpufreq/omap-cpufreq.c
+
+OMAP POWERDOMAIN SOC ADAPTATION LAYER SUPPORT
+M:	Rajendra Nayak <rnayak@codeaurora.org>
+M:	Paul Walmsley <paul@pwsan.com>
+L:	linux-omap@vger.kernel.org
+S:	Maintained
+F:	arch/arm/mach-omap2/prm*
+
+OMAP RANDOM NUMBER GENERATOR SUPPORT
+M:	Deepak Saxena <dsaxena@plexity.net>
+S:	Maintained
+F:	drivers/char/hw_random/omap-rng.c
+
 OMAP USB SUPPORT
 L:	linux-usb@vger.kernel.org
 L:	linux-omap@vger.kernel.org
@@ -9624,21 +9623,57 @@ S:	Orphan
 F:	drivers/usb/*/*omap*
 F:	arch/arm/*omap*/usb*
 
-OMAP GPIO DRIVER
-M:	Grygorii Strashko <grygorii.strashko@ti.com>
-M:	Santosh Shilimkar <ssantosh@kernel.org>
-M:	Kevin Hilman <khilman@kernel.org>
-L:	linux-omap@vger.kernel.org
-S:	Maintained
-F:	Documentation/devicetree/bindings/gpio/gpio-omap.txt
-F:	drivers/gpio/gpio-omap.c
-
 OMAP/NEWFLOW NANOBONE MACHINE SUPPORT
 M:	Mark Jackson <mpfj@newflow.co.uk>
 L:	linux-omap@vger.kernel.org
 S:	Maintained
 F:	arch/arm/boot/dts/am335x-nano.dts
 
+OMAP1 SUPPORT
+M:	Aaro Koskinen <aaro.koskinen@iki.fi>
+M:	Tony Lindgren <tony@atomide.com>
+L:	linux-omap@vger.kernel.org
+Q:	http://patchwork.kernel.org/project/linux-omap/list/
+T:	git git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap.git
+S:	Maintained
+F:	arch/arm/mach-omap1/
+F:	arch/arm/plat-omap/
+F:	arch/arm/configs/omap1_defconfig
+F:	drivers/i2c/busses/i2c-omap.c
+F:	include/linux/i2c-omap.h
+
+OMAP2+ SUPPORT
+M:	Tony Lindgren <tony@atomide.com>
+L:	linux-omap@vger.kernel.org
+W:	http://www.muru.com/linux/omap/
+W:	http://linux.omap.com/
+Q:	http://patchwork.kernel.org/project/linux-omap/list/
+T:	git git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap.git
+S:	Maintained
+F:	arch/arm/mach-omap2/
+F:	arch/arm/plat-omap/
+F:	arch/arm/configs/omap2plus_defconfig
+F:	drivers/i2c/busses/i2c-omap.c
+F:	drivers/irqchip/irq-omap-intc.c
+F:	drivers/mfd/*omap*.c
+F:	drivers/mfd/menelaus.c
+F:	drivers/mfd/palmas.c
+F:	drivers/mfd/tps65217.c
+F:	drivers/mfd/tps65218.c
+F:	drivers/mfd/tps65910.c
+F:	drivers/mfd/twl-core.[ch]
+F:	drivers/mfd/twl4030*.c
+F:	drivers/mfd/twl6030*.c
+F:	drivers/mfd/twl6040*.c
+F:	drivers/regulator/palmas-regulator*.c
+F:	drivers/regulator/pbias-regulator.c
+F:	drivers/regulator/tps65217-regulator.c
+F:	drivers/regulator/tps65218-regulator.c
+F:	drivers/regulator/tps65910-regulator.c
+F:	drivers/regulator/twl-regulator.c
+F:	drivers/regulator/twl6030-regulator.c
+F:	include/linux/i2c-omap.h
+
 OMFS FILESYSTEM
 M:	Bob Copeland <me@bobcopeland.com>
 L:	linux-karma-devel@lists.sourceforge.net
@@ -9658,6 +9693,13 @@ M:	Harald Welte <laforge@gnumonks.org>
 S:	Maintained
 F:	drivers/char/pcmcia/cm4040_cs.*
 
+OMNIVISION OV13858 SENSOR DRIVER
+M:	Sakari Ailus <sakari.ailus@linux.intel.com>
+L:	linux-media@vger.kernel.org
+T:	git git://linuxtv.org/media_tree.git
+S:	Maintained
+F:	drivers/media/i2c/ov13858.c
+
 OMNIVISION OV5640 SENSOR DRIVER
 M:	Steve Longerbeam <slongerbeam@gmail.com>
 L:	linux-media@vger.kernel.org
@@ -9680,13 +9722,6 @@ S:	Maintained
 F:	drivers/media/i2c/ov7670.c
 F:	Documentation/devicetree/bindings/media/i2c/ov7670.txt
 
-OMNIVISION OV13858 SENSOR DRIVER
-M:	Sakari Ailus <sakari.ailus@linux.intel.com>
-L:	linux-media@vger.kernel.org
-T:	git git://linuxtv.org/media_tree.git
-S:	Maintained
-F:	drivers/media/i2c/ov13858.c
-
 ONENAND FLASH DRIVER
 M:	Kyungmin Park <kyungmin.park@samsung.com>
 L:	linux-mtd@lists.infradead.org
@@ -9704,12 +9739,26 @@ F:	drivers/scsi/osst.*
 F:	drivers/scsi/osst_*.h
 F:	drivers/scsi/st.h
 
-OPENCORES I2C BUS DRIVER
-M:	Peter Korsgaard <jacmet@sunsite.dk>
-L:	linux-i2c@vger.kernel.org
+OP-TEE DRIVER
+M:	Jens Wiklander <jens.wiklander@linaro.org>
 S:	Maintained
-F:	Documentation/i2c/busses/i2c-ocores
-F:	drivers/i2c/busses/i2c-ocores.c
+F:	drivers/tee/optee/
+
+OPA-VNIC DRIVER
+M:	Dennis Dalessandro <dennis.dalessandro@intel.com>
+M:	Niranjana Vishwanathapura <niranjana.vishwanathapura@intel.com>
+L:	linux-rdma@vger.kernel.org
+S:	Supported
+F:	drivers/infiniband/ulp/opa_vnic
+
+OPEN FIRMWARE AND DEVICE TREE OVERLAYS
+M:	Pantelis Antoniou <pantelis.antoniou@konsulko.com>
+L:	devicetree@vger.kernel.org
+S:	Maintained
+F:	Documentation/devicetree/dynamic-resolution-notes.txt
+F:	Documentation/devicetree/overlay-notes.txt
+F:	drivers/of/overlay.c
+F:	drivers/of/resolver.c
 
 OPEN FIRMWARE AND FLATTENED DEVICE TREE
 M:	Rob Herring <robh+dt@kernel.org>
@@ -9734,14 +9783,12 @@ F:	Documentation/devicetree/
 F:	arch/*/boot/dts/
 F:	include/dt-bindings/
 
-OPEN FIRMWARE AND DEVICE TREE OVERLAYS
-M:	Pantelis Antoniou <pantelis.antoniou@konsulko.com>
-L:	devicetree@vger.kernel.org
+OPENCORES I2C BUS DRIVER
+M:	Peter Korsgaard <jacmet@sunsite.dk>
+L:	linux-i2c@vger.kernel.org
 S:	Maintained
-F:	Documentation/devicetree/dynamic-resolution-notes.txt
-F:	Documentation/devicetree/overlay-notes.txt
-F:	drivers/of/overlay.c
-F:	drivers/of/resolver.c
+F:	Documentation/i2c/busses/i2c-ocores
+F:	drivers/i2c/busses/i2c-ocores.c
 
 OPENRISC ARCHITECTURE
 M:	Jonas Bonn <jonas@southpole.se>
@@ -9790,11 +9837,6 @@ F:	arch/*/oprofile/
 F:	drivers/oprofile/
 F:	include/linux/oprofile.h
 
-OP-TEE DRIVER
-M:	Jens Wiklander <jens.wiklander@linaro.org>
-S:	Maintained
-F:	drivers/tee/optee/
-
 ORACLE CLUSTER FILESYSTEM 2 (OCFS2)
 M:	Mark Fasheh <mfasheh@versity.com>
 M:	Joel Becker <jlbec@evilplan.org>
@@ -9805,6 +9847,14 @@ F:	Documentation/filesystems/ocfs2.txt
 F:	Documentation/filesystems/dlmfs.txt
 F:	fs/ocfs2/
 
+ORANGEFS FILESYSTEM
+M:	Mike Marshall <hubcap@omnibond.com>
+L:	pvfs2-developers@beowulf-underground.org (subscribers-only)
+T:	git git://git.kernel.org/pub/scm/linux/kernel/git/hubcap/linux.git
+S:	Supported
+F:	fs/orangefs/
+F:	Documentation/filesystems/orangefs.txt
+
 ORINOCO DRIVER
 L:	linux-wireless@vger.kernel.org
 W:	http://wireless.kernel.org/en/users/Drivers/orinoco
@@ -9819,6 +9869,16 @@ F:	drivers/scsi/osd/
 F:	include/scsi/osd_*
 F:	fs/exofs/
 
+OV2659 OMNIVISION SENSOR DRIVER
+M:	"Lad, Prabhakar" <prabhakar.csengg@gmail.com>
+L:	linux-media@vger.kernel.org
+W:	https://linuxtv.org
+Q:	http://patchwork.linuxtv.org/project/linux-media/list/
+T:	git git://linuxtv.org/mhadli/v4l-dvb-davinci_devices.git
+S:	Maintained
+F:	drivers/media/i2c/ov2659.c
+F:	include/media/i2c/ov2659.h
+
 OVERLAY FILESYSTEM
 M:	Miklos Szeredi <miklos@szeredi.hu>
 L:	linux-unionfs@vger.kernel.org
@@ -9827,14 +9887,6 @@ S:	Supported
 F:	fs/overlayfs/
 F:	Documentation/filesystems/overlayfs.txt
 
-ORANGEFS FILESYSTEM
-M:	Mike Marshall <hubcap@omnibond.com>
-L:	pvfs2-developers@beowulf-underground.org (subscribers-only)
-T:	git git://git.kernel.org/pub/scm/linux/kernel/git/hubcap/linux.git
-S:	Supported
-F:	fs/orangefs/
-F:	Documentation/filesystems/orangefs.txt
-
 P54 WIRELESS DRIVER
 M:	Christian Lamparter <chunkeey@googlemail.com>
 L:	linux-wireless@vger.kernel.org
@@ -9875,11 +9927,11 @@ F:	Documentation/mn10300/
 F:	arch/mn10300/
 
 PARALLEL LCD/KEYPAD PANEL DRIVER
-M:      Willy Tarreau <willy@haproxy.com>
-M:      Ksenija Stanojevic <ksenija.stanojevic@gmail.com>
-S:      Odd Fixes
-F:      Documentation/misc-devices/lcd-panel-cgram.txt
-F:      drivers/misc/panel.c
+M:	Willy Tarreau <willy@haproxy.com>
+M:	Ksenija Stanojevic <ksenija.stanojevic@gmail.com>
+S:	Odd Fixes
+F:	Documentation/misc-devices/lcd-panel-cgram.txt
+F:	drivers/misc/panel.c
 
 PARALLEL PORT SUBSYSTEM
 M:	Sudip Mukherjee <sudipm.mukherjee@gmail.com>
@@ -9975,42 +10027,13 @@ M:	Khalid Aziz <khalid@gonehiking.org>
 S:	Maintained
 F:	drivers/firmware/pcdp.*
 
-PCI ERROR RECOVERY
-M:	Linas Vepstas <linasvepstas@gmail.com>
-L:	linux-pci@vger.kernel.org
-S:	Supported
-F:	Documentation/PCI/pci-error-recovery.txt
-
-PCI ENHANCED ERROR HANDLING (EEH) FOR POWERPC
-M:	Russell Currey <ruscur@russell.cc>
-L:	linuxppc-dev@lists.ozlabs.org
-S:	Supported
-F:	Documentation/powerpc/eeh-pci-error-recovery.txt
-F:	arch/powerpc/kernel/eeh*.c
-F:	arch/powerpc/platforms/*/eeh*.c
-F:	arch/powerpc/include/*/eeh*.h
-
-PCI SUBSYSTEM
-M:	Bjorn Helgaas <bhelgaas@google.com>
-L:	linux-pci@vger.kernel.org
-Q:	http://patchwork.ozlabs.org/project/linux-pci/list/
-T:	git git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci.git
-S:	Supported
-F:	Documentation/devicetree/bindings/pci/
-F:	Documentation/PCI/
-F:	drivers/pci/
-F:	include/linux/pci*
-F:	arch/x86/pci/
-F:	arch/x86/kernel/quirks.c
-
-PCI ENDPOINT SUBSYSTEM
-M:	Kishon Vijay Abraham I <kishon@ti.com>
+PCI DRIVER FOR AARDVARK (Marvell Armada 3700)
+M:	Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
 L:	linux-pci@vger.kernel.org
-T:	git git://git.kernel.org/pub/scm/linux/kernel/git/kishon/pci-endpoint.git
-S:	Supported
-F:	drivers/pci/endpoint/
-F:	drivers/misc/pci_endpoint_test.c
-F:	tools/pci/
+L:	linux-arm-kernel@lists.infradead.org (moderated for non-subscribers)
+S:	Maintained
+F:	Documentation/devicetree/bindings/pci/aardvark-pci.txt
+F:	drivers/pci/host/pci-aardvark.c
 
 PCI DRIVER FOR ALTERA PCIE IP
 M:	Ley Foon Tan <lftan@altera.com>
@@ -10020,6 +10043,14 @@ S:	Supported
 F:	Documentation/devicetree/bindings/pci/altera-pcie.txt
 F:	drivers/pci/host/pcie-altera.c
 
+PCI DRIVER FOR APPLIEDMICRO XGENE
+M:	Tanmay Inamdar <tinamdar@apm.com>
+L:	linux-pci@vger.kernel.org
+L:	linux-arm-kernel@lists.infradead.org
+S:	Maintained
+F:	Documentation/devicetree/bindings/pci/xgene-pci.txt
+F:	drivers/pci/host/pci-xgene.c
+
 PCI DRIVER FOR ARM VERSATILE PLATFORM
 M:	Rob Herring <robh@kernel.org>
 L:	linux-pci@vger.kernel.org
@@ -10036,14 +10067,6 @@ S:	Maintained
 F:	Documentation/devicetree/bindings/pci/pci-armada8k.txt
 F:	drivers/pci/dwc/pcie-armada8k.c
 
-PCI DRIVER FOR APPLIEDMICRO XGENE
-M:	Tanmay Inamdar <tinamdar@apm.com>
-L:	linux-pci@vger.kernel.org
-L:	linux-arm-kernel@lists.infradead.org
-S:	Maintained
-F:	Documentation/devicetree/bindings/pci/xgene-pci.txt
-F:	drivers/pci/host/pci-xgene.c
-
 PCI DRIVER FOR FREESCALE LAYERSCAPE
 M:	Minghuan Lian <minghuan.Lian@freescale.com>
 M:	Mingkai Hu <mingkai.hu@freescale.com>
@@ -10054,6 +10077,15 @@ L:	linux-arm-kernel@lists.infradead.org
 S:	Maintained
 F:	drivers/pci/dwc/*layerscape*
 
+PCI DRIVER FOR GENERIC OF HOSTS
+M:	Will Deacon <will.deacon@arm.com>
+L:	linux-pci@vger.kernel.org
+L:	linux-arm-kernel@lists.infradead.org (moderated for non-subscribers)
+S:	Maintained
+F:	Documentation/devicetree/bindings/pci/host-generic-pci.txt
+F:	drivers/pci/host/pci-host-common.c
+F:	drivers/pci/host/pci-host-generic.c
+
 PCI DRIVER FOR IMX6
 M:	Richard Zhu <hongxing.zhu@nxp.com>
 M:	Lucas Stach <l.stach@pengutronix.de>
@@ -10063,28 +10095,11 @@ S:	Maintained
 F:	Documentation/devicetree/bindings/pci/fsl,imx6q-pcie.txt
 F:	drivers/pci/dwc/*imx6*
 
-PCI DRIVER FOR TI KEYSTONE
-M:	Murali Karicheri <m-karicheri2@ti.com>
-L:	linux-pci@vger.kernel.org
-L:	linux-arm-kernel@lists.infradead.org (moderated for non-subscribers)
-S:	Maintained
-F:	drivers/pci/dwc/*keystone*
-
-PCI DRIVER FOR MVEBU (Marvell Armada 370 and Armada XP SOC support)
-M:	Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
-M:	Jason Cooper <jason@lakedaemon.net>
-L:	linux-pci@vger.kernel.org
-L:	linux-arm-kernel@lists.infradead.org (moderated for non-subscribers)
-S:	Maintained
-F:	drivers/pci/host/*mvebu*
-
-PCI DRIVER FOR AARDVARK (Marvell Armada 3700)
-M:	Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
+PCI DRIVER FOR INTEL VOLUME MANAGEMENT DEVICE (VMD)
+M:	Keith Busch <keith.busch@intel.com>
 L:	linux-pci@vger.kernel.org
-L:	linux-arm-kernel@lists.infradead.org (moderated for non-subscribers)
-S:	Maintained
-F:	Documentation/devicetree/bindings/pci/aardvark-pci.txt
-F:	drivers/pci/host/pci-aardvark.c
+S:	Supported
+F:	drivers/pci/host/vmd.c
 
 PCI DRIVER FOR MICROSEMI SWITCHTEC
 M:	Kurt Schwemmer <kurt.schwemmer@microsemi.com>
@@ -10097,6 +10112,14 @@ F:	Documentation/ABI/testing/sysfs-class-switchtec
 F:	drivers/pci/switch/switchtec*
 F:	include/uapi/linux/switchtec_ioctl.h
 
+PCI DRIVER FOR MVEBU (Marvell Armada 370 and Armada XP SOC support)
+M:	Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
+M:	Jason Cooper <jason@lakedaemon.net>
+L:	linux-pci@vger.kernel.org
+L:	linux-arm-kernel@lists.infradead.org (moderated for non-subscribers)
+S:	Maintained
+F:	drivers/pci/host/*mvebu*
+
 PCI DRIVER FOR NVIDIA TEGRA
 M:	Thierry Reding <thierry.reding@gmail.com>
 L:	linux-tegra@vger.kernel.org
@@ -10105,14 +10128,6 @@ S:	Supported
 F:	Documentation/devicetree/bindings/pci/nvidia,tegra20-pcie.txt
 F:	drivers/pci/host/pci-tegra.c
 
-PCI DRIVER FOR TI DRA7XX
-M:	Kishon Vijay Abraham I <kishon@ti.com>
-L:	linux-omap@vger.kernel.org
-L:	linux-pci@vger.kernel.org
-S:	Supported
-F:	Documentation/devicetree/bindings/pci/ti-pci.txt
-F:	drivers/pci/dwc/pci-dra7xx.c
-
 PCI DRIVER FOR RENESAS R-CAR
 M:	Simon Horman <horms@verge.net.au>
 L:	linux-pci@vger.kernel.org
@@ -10136,26 +10151,44 @@ S:	Maintained
 F:	Documentation/devicetree/bindings/pci/designware-pcie.txt
 F:	drivers/pci/dwc/*designware*
 
-PCI DRIVER FOR GENERIC OF HOSTS
-M:	Will Deacon <will.deacon@arm.com>
+PCI DRIVER FOR TI DRA7XX
+M:	Kishon Vijay Abraham I <kishon@ti.com>
+L:	linux-omap@vger.kernel.org
+L:	linux-pci@vger.kernel.org
+S:	Supported
+F:	Documentation/devicetree/bindings/pci/ti-pci.txt
+F:	drivers/pci/dwc/pci-dra7xx.c
+
+PCI DRIVER FOR TI KEYSTONE
+M:	Murali Karicheri <m-karicheri2@ti.com>
 L:	linux-pci@vger.kernel.org
 L:	linux-arm-kernel@lists.infradead.org (moderated for non-subscribers)
 S:	Maintained
-F:	Documentation/devicetree/bindings/pci/host-generic-pci.txt
-F:	drivers/pci/host/pci-host-common.c
-F:	drivers/pci/host/pci-host-generic.c
+F:	drivers/pci/dwc/*keystone*
 
-PCI DRIVER FOR INTEL VOLUME MANAGEMENT DEVICE (VMD)
-M:	Keith Busch <keith.busch@intel.com>
+PCI ENDPOINT SUBSYSTEM
+M:	Kishon Vijay Abraham I <kishon@ti.com>
 L:	linux-pci@vger.kernel.org
+T:	git git://git.kernel.org/pub/scm/linux/kernel/git/kishon/pci-endpoint.git
 S:	Supported
-F:	drivers/pci/host/vmd.c
+F:	drivers/pci/endpoint/
+F:	drivers/misc/pci_endpoint_test.c
+F:	tools/pci/
 
-PCIE DRIVER FOR ST SPEAR13XX
-M:	Pratyush Anand <pratyush.anand@gmail.com>
+PCI ENHANCED ERROR HANDLING (EEH) FOR POWERPC
+M:	Russell Currey <ruscur@russell.cc>
+L:	linuxppc-dev@lists.ozlabs.org
+S:	Supported
+F:	Documentation/powerpc/eeh-pci-error-recovery.txt
+F:	arch/powerpc/kernel/eeh*.c
+F:	arch/powerpc/platforms/*/eeh*.c
+F:	arch/powerpc/include/*/eeh*.h
+
+PCI ERROR RECOVERY
+M:	Linas Vepstas <linasvepstas@gmail.com>
 L:	linux-pci@vger.kernel.org
-S:	Maintained
-F:	drivers/pci/dwc/*spear*
+S:	Supported
+F:	Documentation/PCI/pci-error-recovery.txt
 
 PCI MSI DRIVER FOR ALTERA MSI IP
 M:	Ley Foon Tan <lftan@altera.com>
@@ -10173,6 +10206,19 @@ S:	Maintained
 F:	Documentation/devicetree/bindings/pci/xgene-pci-msi.txt
 F:	drivers/pci/host/pci-xgene-msi.c
 
+PCI SUBSYSTEM
+M:	Bjorn Helgaas <bhelgaas@google.com>
+L:	linux-pci@vger.kernel.org
+Q:	http://patchwork.ozlabs.org/project/linux-pci/list/
+T:	git git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci.git
+S:	Supported
+F:	Documentation/devicetree/bindings/pci/
+F:	Documentation/PCI/
+F:	drivers/pci/
+F:	include/linux/pci*
+F:	arch/x86/pci/
+F:	arch/x86/kernel/quirks.c
+
 PCIE DRIVER FOR AXIS ARTPEC
 M:	Niklas Cassel <niklas.cassel@axis.com>
 M:	Jesper Nilsson <jesper.nilsson@axis.com>
@@ -10182,6 +10228,14 @@ S:	Maintained
 F:	Documentation/devicetree/bindings/pci/axis,artpec*
 F:	drivers/pci/dwc/*artpec*
 
+PCIE DRIVER FOR CAVIUM THUNDERX
+M:	David Daney <david.daney@cavium.com>
+L:	linux-pci@vger.kernel.org
+L:	linux-arm-kernel@lists.infradead.org (moderated for non-subscribers)
+S:	Supported
+F:	Documentation/devicetree/bindings/pci/pci-thunder-*
+F:	drivers/pci/host/pci-thunder-*
+
 PCIE DRIVER FOR HISILICON
 M:	Zhou Wang <wangzhou1@hisilicon.com>
 M:	Gabriele Paoloni <gabriele.paoloni@huawei.com>
@@ -10198,6 +10252,21 @@ S:	Maintained
 F:	Documentation/devicetree/bindings/pci/pcie-kirin.txt
 F:	drivers/pci/dwc/pcie-kirin.c
 
+PCIE DRIVER FOR MEDIATEK
+M:	Ryder Lee <ryder.lee@mediatek.com>
+L:	linux-pci@vger.kernel.org
+L:	linux-mediatek@lists.infradead.org
+S:	Supported
+F:	Documentation/devicetree/bindings/pci/mediatek*
+F:	drivers/pci/host/*mediatek*
+
+PCIE DRIVER FOR QUALCOMM MSM
+M:	Stanimir Varbanov <svarbanov@mm-sol.com>
+L:	linux-pci@vger.kernel.org
+L:	linux-arm-msm@vger.kernel.org
+S:	Maintained
+F:	drivers/pci/dwc/*qcom*
+
 PCIE DRIVER FOR ROCKCHIP
 M:	Shawn Lin <shawn.lin@rock-chips.com>
 L:	linux-pci@vger.kernel.org
@@ -10206,28 +10275,11 @@ S:	Maintained
 F:	Documentation/devicetree/bindings/pci/rockchip-pcie.txt
 F:	drivers/pci/host/pcie-rockchip.c
 
-PCIE DRIVER FOR QUALCOMM MSM
-M:     Stanimir Varbanov <svarbanov@mm-sol.com>
-L:     linux-pci@vger.kernel.org
-L:     linux-arm-msm@vger.kernel.org
-S:     Maintained
-F:     drivers/pci/dwc/*qcom*
-
-PCIE DRIVER FOR CAVIUM THUNDERX
-M:	David Daney <david.daney@cavium.com>
+PCIE DRIVER FOR ST SPEAR13XX
+M:	Pratyush Anand <pratyush.anand@gmail.com>
 L:	linux-pci@vger.kernel.org
-L:	linux-arm-kernel@lists.infradead.org (moderated for non-subscribers)
-S:	Supported
-F:	Documentation/devicetree/bindings/pci/pci-thunder-*
-F:	drivers/pci/host/pci-thunder-*
-
-PCIE DRIVER FOR MEDIATEK
-M:      Ryder Lee <ryder.lee@mediatek.com>
-L:      linux-pci@vger.kernel.org
-L:      linux-mediatek@lists.infradead.org
-S:      Supported
-F:      Documentation/devicetree/bindings/pci/mediatek*
-F:      drivers/pci/host/*mediatek*
+S:	Maintained
+F:	drivers/pci/dwc/*spear*
 
 PCMCIA SUBSYSTEM
 P:	Linux PCMCIA Team
@@ -10330,7 +10382,7 @@ L:	linux-gpio@vger.kernel.org
 T:	git git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl.git
 S:	Maintained
 F:	Documentation/devicetree/bindings/pinctrl/
-F:	Documentation/pinctrl.txt
+F:	Documentation/driver-api/pinctl.rst
 F:	drivers/pinctrl/
 F:	include/linux/pinctrl/
 
@@ -10396,14 +10448,14 @@ S:	Maintained
 F:	drivers/pinctrl/spear/
 
 PISTACHIO SOC SUPPORT
-M:      James Hartley <james.hartley@imgtec.com>
-M:      Ionela Voinescu <ionela.voinescu@imgtec.com>
-L:      linux-mips@linux-mips.org
-S:      Maintained
-F:      arch/mips/pistachio/
-F:      arch/mips/include/asm/mach-pistachio/
-F:      arch/mips/boot/dts/img/pistachio*
-F:      arch/mips/configs/pistachio*_defconfig
+M:	James Hartley <james.hartley@imgtec.com>
+M:	Ionela Voinescu <ionela.voinescu@imgtec.com>
+L:	linux-mips@linux-mips.org
+S:	Maintained
+F:	arch/mips/pistachio/
+F:	arch/mips/include/asm/mach-pistachio/
+F:	arch/mips/boot/dts/img/pistachio*
+F:	arch/mips/configs/pistachio*_defconfig
 
 PKTCDVD DRIVER
 S:	Orphan
@@ -10446,6 +10498,11 @@ L:	linux-scsi@vger.kernel.org
 S:	Supported
 F:	drivers/scsi/pm8001/
 
+PNP SUPPORT
+M:	"Rafael J. Wysocki" <rafael.j.wysocki@intel.com>
+S:	Maintained
+F:	drivers/pnp/
+
 POSIX CLOCKS and TIMERS
 M:	Thomas Gleixner <tglx@linutronix.de>
 L:	linux-kernel@vger.kernel.org
@@ -10467,15 +10524,6 @@ F:	include/linux/pm_*
 F:	include/linux/powercap.h
 F:	drivers/powercap/
 
-POWER SUPPLY CLASS/SUBSYSTEM and DRIVERS
-M:	Sebastian Reichel <sre@kernel.org>
-L:	linux-pm@vger.kernel.org
-T:	git git://git.kernel.org/pub/scm/linux/kernel/git/sre/linux-power-supply.git
-S:	Maintained
-F:	Documentation/devicetree/bindings/power/supply/
-F:	include/linux/power_supply.h
-F:	drivers/power/supply/
-
 POWER STATE COORDINATION INTERFACE (PSCI)
 M:	Mark Rutland <mark.rutland@arm.com>
 M:	Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
@@ -10485,23 +10533,21 @@ F:	drivers/firmware/psci*.c
 F:	include/linux/psci.h
 F:	include/uapi/linux/psci.h
 
+POWER SUPPLY CLASS/SUBSYSTEM and DRIVERS
+M:	Sebastian Reichel <sre@kernel.org>
+L:	linux-pm@vger.kernel.org
+T:	git git://git.kernel.org/pub/scm/linux/kernel/git/sre/linux-power-supply.git
+S:	Maintained
+F:	Documentation/devicetree/bindings/power/supply/
+F:	include/linux/power_supply.h
+F:	drivers/power/supply/
+
 POWERNV OPERATOR PANEL LCD DISPLAY DRIVER
 M:	Suraj Jitindar Singh <sjitindarsingh@gmail.com>
 L:	linuxppc-dev@lists.ozlabs.org
 S:	Maintained
 F:	drivers/char/powernv-op-panel.c
 
-PNP SUPPORT
-M:	"Rafael J. Wysocki" <rafael.j.wysocki@intel.com>
-S:	Maintained
-F:	drivers/pnp/
-
-PPP PROTOCOL DRIVERS AND COMPRESSORS
-M:	Paul Mackerras <paulus@samba.org>
-L:	linux-ppp@vger.kernel.org
-S:	Maintained
-F:	drivers/net/ppp/ppp_*
-
 PPP OVER ATM (RFC 2364)
 M:	Mitchell Blank Jr <mitch@sfgoth.com>
 S:	Maintained
@@ -10521,6 +10567,12 @@ F:	net/l2tp/l2tp_ppp.c
 F:	include/linux/if_pppol2tp.h
 F:	include/uapi/linux/if_pppol2tp.h
 
+PPP PROTOCOL DRIVERS AND COMPRESSORS
+M:	Paul Mackerras <paulus@samba.org>
+L:	linux-ppp@vger.kernel.org
+S:	Maintained
+F:	drivers/net/ppp/ppp_*
+
 PPS SUPPORT
 M:	Rodolfo Giometti <giometti@enneenne.com>
 W:	http://wiki.enneenne.com/index.php/LinuxPPS_support
@@ -10634,7 +10686,6 @@ F:	drivers/ptp/*
 F:	include/linux/ptp_cl*
 
 PTRACE SUPPORT
-M:	Roland McGrath <roland@hack.frob.com>
 M:	Oleg Nesterov <oleg@redhat.com>
 S:	Maintained
 F:	include/asm-generic/syscall.h
@@ -10642,7 +10693,12 @@ F:	include/linux/ptrace.h
 F:	include/linux/regset.h
 F:	include/linux/tracehook.h
 F:	include/uapi/linux/ptrace.h
+F:	include/uapi/linux/ptrace.h
+F:	include/asm-generic/ptrace.h
 F:	kernel/ptrace.c
+F:	arch/*/ptrace*.c
+F:	arch/*/*/ptrace*.c
+F:	arch/*/include/asm/ptrace*.h
 
 PULSE8-CEC DRIVER
 M:	Hans Verkuil <hverkuil@xs4all.nl>
@@ -10691,6 +10747,20 @@ F:	include/linux/pwm_backlight.h
 F:	drivers/gpio/gpio-mvebu.c
 F:	Documentation/devicetree/bindings/gpio/gpio-mvebu.txt
 
+PXA GPIO DRIVER
+M:	Robert Jarzmik <robert.jarzmik@free.fr>
+L:	linux-gpio@vger.kernel.org
+S:	Maintained
+F:	drivers/gpio/gpio-pxa.c
+
+PXA MMCI DRIVER
+S:	Orphan
+
+PXA RTC DRIVER
+M:	Robert Jarzmik <robert.jarzmik@free.fr>
+L:	linux-rtc@vger.kernel.org
+S:	Maintained
+
 PXA2xx/PXA3xx SUPPORT
 M:	Daniel Mack <daniel@zonque.org>
 M:	Haojian Zhuang <haojian.zhuang@gmail.com>
@@ -10710,36 +10780,12 @@ F:	include/sound/pxa2xx-lib.h
 F:	sound/arm/pxa*
 F:	sound/soc/pxa/
 
-PXA GPIO DRIVER
-M:	Robert Jarzmik <robert.jarzmik@free.fr>
-L:	linux-gpio@vger.kernel.org
-S:	Maintained
-F:	drivers/gpio/gpio-pxa.c
-
 PXA3xx NAND FLASH DRIVER
 M:	Ezequiel Garcia <ezequiel.garcia@free-electrons.com>
 L:	linux-mtd@lists.infradead.org
 S:	Maintained
 F:	drivers/mtd/nand/pxa3xx_nand.c
 
-MMP SUPPORT
-M:	Eric Miao <eric.y.miao@gmail.com>
-M:	Haojian Zhuang <haojian.zhuang@gmail.com>
-L:	linux-arm-kernel@lists.infradead.org (moderated for non-subscribers)
-T:	git git://github.com/hzhuang1/linux.git
-T:	git git://git.linaro.org/people/ycmiao/pxa-linux.git
-S:	Maintained
-F:	arch/arm/boot/dts/mmp*
-F:	arch/arm/mach-mmp/
-
-PXA MMCI DRIVER
-S:	Orphan
-
-PXA RTC DRIVER
-M:	Robert Jarzmik <robert.jarzmik@free.fr>
-L:	linux-rtc@vger.kernel.org
-S:	Maintained
-
 QAT DRIVER
 M:	Giovanni Cabiddu <giovanni.cabiddu@intel.com>
 M:	Salvatore Benedetto <salvatore.benedetto@intel.com>
@@ -10747,12 +10793,56 @@ L:	qat-linux@intel.com
 S:	Supported
 F:	drivers/crypto/qat/
 
+QCOM AUDIO (ASoC) DRIVERS
+M:	Patrick Lai <plai@codeaurora.org>
+M:	Banajit Goswami <bgoswami@codeaurora.org>
+L:	alsa-devel@alsa-project.org (moderated for non-subscribers)
+S:	Supported
+F:	sound/soc/qcom/
+
+QEMU MACHINE EMULATOR AND VIRTUALIZER SUPPORT
+M:	Gabriel Somlo <somlo@cmu.edu>
+M:	"Michael S. Tsirkin" <mst@redhat.com>
+L:	qemu-devel@nongnu.org
+S:	Maintained
+F:	drivers/firmware/qemu_fw_cfg.c
+
 QIB DRIVER
 M:	Mike Marciniszyn <infinipath@intel.com>
 L:	linux-rdma@vger.kernel.org
 S:	Supported
 F:	drivers/infiniband/hw/qib/
 
+QLOGIC QL41xxx FCOE DRIVER
+M:	QLogic-Storage-Upstream@cavium.com
+L:	linux-scsi@vger.kernel.org
+S:	Supported
+F:	drivers/scsi/qedf/
+
+QLOGIC QL41xxx ISCSI DRIVER
+M:	QLogic-Storage-Upstream@cavium.com
+L:	linux-scsi@vger.kernel.org
+S:	Supported
+F:	drivers/scsi/qedi/
+
+QLOGIC QL4xxx ETHERNET DRIVER
+M:	Yuval Mintz <Yuval.Mintz@cavium.com>
+M:	Ariel Elior <Ariel.Elior@cavium.com>
+M:	everest-linux-l2@cavium.com
+L:	netdev@vger.kernel.org
+S:	Supported
+F:	drivers/net/ethernet/qlogic/qed/
+F:	include/linux/qed/
+F:	drivers/net/ethernet/qlogic/qede/
+
+QLOGIC QL4xxx RDMA DRIVER
+M:	Ram Amrani <Ram.Amrani@cavium.com>
+M:	Ariel Elior <Ariel.Elior@cavium.com>
+L:	linux-rdma@vger.kernel.org
+S:	Supported
+F:	drivers/infiniband/hw/qedr/
+F:	include/uapi/rdma/qedr-abi.h
+
 QLOGIC QLA1280 SCSI DRIVER
 M:	Michael Reed <mdr@sgi.com>
 L:	linux-scsi@vger.kernel.org
@@ -10766,13 +10856,6 @@ S:	Supported
 F:	Documentation/scsi/LICENSE.qla2xxx
 F:	drivers/scsi/qla2xxx/
 
-QLOGIC QLA4XXX iSCSI DRIVER
-M:	QLogic-Storage-Upstream@qlogic.com
-L:	linux-scsi@vger.kernel.org
-S:	Supported
-F:	Documentation/scsi/LICENSE.qla4xxx
-F:	drivers/scsi/qla4xxx/
-
 QLOGIC QLA3XXX NETWORK DRIVER
 M:	Dept-GELinuxNICDev@cavium.com
 L:	netdev@vger.kernel.org
@@ -10780,6 +10863,13 @@ S:	Supported
 F:	Documentation/networking/LICENSE.qla3xxx
 F:	drivers/net/ethernet/qlogic/qla3xxx.*
 
+QLOGIC QLA4XXX iSCSI DRIVER
+M:	QLogic-Storage-Upstream@qlogic.com
+L:	linux-scsi@vger.kernel.org
+S:	Supported
+F:	Documentation/scsi/LICENSE.qla4xxx
+F:	drivers/scsi/qla4xxx/
+
 QLOGIC QLCNIC (1/10)Gb ETHERNET DRIVER
 M:	Harish Patil <harish.patil@cavium.com>
 M:	Manish Chopra <manish.chopra@cavium.com>
@@ -10796,28 +10886,6 @@ L:	netdev@vger.kernel.org
 S:	Supported
 F:	drivers/net/ethernet/qlogic/qlge/
 
-QLOGIC QL4xxx ETHERNET DRIVER
-M:	Yuval Mintz <Yuval.Mintz@cavium.com>
-M:	Ariel Elior <Ariel.Elior@cavium.com>
-M:	everest-linux-l2@cavium.com
-L:	netdev@vger.kernel.org
-S:	Supported
-F:	drivers/net/ethernet/qlogic/qed/
-F:	include/linux/qed/
-F:	drivers/net/ethernet/qlogic/qede/
-
-QLOGIC QL41xxx ISCSI DRIVER
-M:	QLogic-Storage-Upstream@cavium.com
-L:	linux-scsi@vger.kernel.org
-S:	Supported
-F:	drivers/scsi/qedi/
-
-QLOGIC QL41xxx FCOE DRIVER
-M:	QLogic-Storage-Upstream@cavium.com
-L:	linux-scsi@vger.kernel.org
-S:	Supported
-F:	drivers/scsi/qedf/
-
 QNX4 FILESYSTEM
 M:	Anders Larsen <al@alarsen.net>
 W:	http://www.alarsen.net/linux/qnx4fs/
@@ -10844,13 +10912,6 @@ T:	git git://linuxtv.org/anttip/media_tree.git
 S:	Maintained
 F:	drivers/media/tuners/qt1010*
 
-QUALCOMM ATHEROS ATH9K WIRELESS DRIVER
-M:	QCA ath9k Development <ath9k-devel@qca.qualcomm.com>
-L:	linux-wireless@vger.kernel.org
-W:	http://wireless.kernel.org/en/users/Drivers/ath9k
-S:	Supported
-F:	drivers/net/wireless/ath/ath9k/
-
 QUALCOMM ATHEROS ATH10K WIRELESS DRIVER
 M:	Kalle Valo <kvalo@qca.qualcomm.com>
 L:	ath10k@lists.infradead.org
@@ -10859,6 +10920,13 @@ T:	git git://git.kernel.org/pub/scm/linux/kernel/git/kvalo/ath.git
 S:	Supported
 F:	drivers/net/wireless/ath/ath10k/
 
+QUALCOMM ATHEROS ATH9K WIRELESS DRIVER
+M:	QCA ath9k Development <ath9k-devel@qca.qualcomm.com>
+L:	linux-wireless@vger.kernel.org
+W:	http://wireless.kernel.org/en/users/Drivers/ath9k
+S:	Supported
+F:	drivers/net/wireless/ath/ath9k/
+
 QUALCOMM EMAC GIGABIT ETHERNET DRIVER
 M:	Timur Tabi <timur@codeaurora.org>
 L:	netdev@vger.kernel.org
@@ -10888,33 +10956,24 @@ T:	git git://github.com/KrasnikovEugene/wcn36xx.git
 S:	Supported
 F:	drivers/net/wireless/ath/wcn36xx/
 
-QEMU MACHINE EMULATOR AND VIRTUALIZER SUPPORT
-M:	Gabriel Somlo <somlo@cmu.edu>
-M:	"Michael S. Tsirkin" <mst@redhat.com>
-L:	qemu-devel@nongnu.org
-S:	Maintained
-F:	drivers/firmware/qemu_fw_cfg.c
-
 QUANTENNA QTNFMAC WIRELESS DRIVER
-M:   Igor Mitsyanko <imitsyanko@quantenna.com>
-M:   Avinash Patil <avinashp@quantenna.com>
-M:   Sergey Matyukevich <smatyukevich@quantenna.com>
-L:   linux-wireless@vger.kernel.org
-S:   Maintained
-F:   drivers/net/wireless/quantenna
+M:	Igor Mitsyanko <imitsyanko@quantenna.com>
+M:	Avinash Patil <avinashp@quantenna.com>
+M:	Sergey Matyukevich <smatyukevich@quantenna.com>
+L:	linux-wireless@vger.kernel.org
+S:	Maintained
+F:	drivers/net/wireless/quantenna
 
-RADOS BLOCK DEVICE (RBD)
-M:	Ilya Dryomov <idryomov@gmail.com>
-M:	Sage Weil <sage@redhat.com>
-M:	Alex Elder <elder@kernel.org>
-L:	ceph-devel@vger.kernel.org
-W:	http://ceph.com/
-T:	git git://git.kernel.org/pub/scm/linux/kernel/git/sage/ceph-client.git
-T:	git git://github.com/ceph/ceph-client.git
+RADEON and AMDGPU DRM DRIVERS
+M:	Alex Deucher <alexander.deucher@amd.com>
+M:	Christian König <christian.koenig@amd.com>
+L:	amd-gfx@lists.freedesktop.org
+T:	git git://people.freedesktop.org/~agd5f/linux
 S:	Supported
-F:	Documentation/ABI/testing/sysfs-bus-rbd
-F:	drivers/block/rbd.c
-F:	drivers/block/rbd_types.h
+F:	drivers/gpu/drm/radeon/
+F:	include/uapi/drm/radeon_drm.h
+F:	drivers/gpu/drm/amd/
+F:	include/uapi/drm/amdgpu_drm.h
 
 RADEON FRAMEBUFFER DISPLAY DRIVER
 M:	Benjamin Herrenschmidt <benh@kernel.crashing.org>
@@ -10938,6 +10997,19 @@ S:	Maintained
 F:	drivers/media/radio/radio-shark2.c
 F:	drivers/media/radio/radio-tea5777.c
 
+RADOS BLOCK DEVICE (RBD)
+M:	Ilya Dryomov <idryomov@gmail.com>
+M:	Sage Weil <sage@redhat.com>
+M:	Alex Elder <elder@kernel.org>
+L:	ceph-devel@vger.kernel.org
+W:	http://ceph.com/
+T:	git git://git.kernel.org/pub/scm/linux/kernel/git/sage/ceph-client.git
+T:	git git://github.com/ceph/ceph-client.git
+S:	Supported
+F:	Documentation/ABI/testing/sysfs-bus-rbd
+F:	drivers/block/rbd.c
+F:	drivers/block/rbd_types.h
+
 RAGE128 FRAMEBUFFER DISPLAY DRIVER
 M:	Paul Mackerras <paulus@samba.org>
 L:	linux-fbdev@vger.kernel.org
@@ -11017,6 +11089,12 @@ L:	netdev@vger.kernel.org
 S:	Maintained
 F:	drivers/net/ethernet/rdc/r6040.c
 
+RDMAVT - RDMA verbs software
+M:	Dennis Dalessandro <dennis.dalessandro@intel.com>
+L:	linux-rdma@vger.kernel.org
+S:	Supported
+F:	drivers/infiniband/sw/rdmavt
+
 RDS - RELIABLE DATAGRAM SOCKETS
 M:	Santosh Shilimkar <santosh.shilimkar@oracle.com>
 L:	netdev@vger.kernel.org
@@ -11027,12 +11105,6 @@ S:	Supported
 F:	net/rds/
 F:	Documentation/networking/rds.txt
 
-RDMAVT - RDMA verbs software
-M:	Dennis Dalessandro <dennis.dalessandro@intel.com>
-L:	linux-rdma@vger.kernel.org
-S:	Supported
-F:	drivers/infiniband/sw/rdmavt
-
 RDT - RESOURCE ALLOCATION
 M:	Fenghua Yu <fenghua.yu@intel.com>
 L:	linux-kernel@vger.kernel.org
@@ -11081,11 +11153,6 @@ S:	Maintained
 F:	sound/soc/codecs/rt*
 F:	include/sound/rt*.h
 
-REISERFS FILE SYSTEM
-L:	reiserfs-devel@vger.kernel.org
-S:	Supported
-F:	fs/reiserfs/
-
 REGISTER MAP ABSTRACTION
 M:	Mark Brown <broonie@kernel.org>
 L:	linux-kernel@vger.kernel.org
@@ -11095,6 +11162,11 @@ F:	Documentation/devicetree/bindings/regmap/
 F:	drivers/base/regmap/
 F:	include/linux/regmap.h
 
+REISERFS FILE SYSTEM
+L:	reiserfs-devel@vger.kernel.org
+S:	Supported
+F:	fs/reiserfs/
+
 REMOTE PROCESSOR (REMOTEPROC) SUBSYSTEM
 M:	Ohad Ben-Cohen <ohad@wizery.com>
 M:	Bjorn Andersson <bjorn.andersson@linaro.org>
@@ -11170,16 +11242,16 @@ S:	Maintained
 F:	lib/rhashtable.c
 F:	include/linux/rhashtable.h
 
-RICOH SMARTMEDIA/XD DRIVER
+RICOH R5C592 MEMORYSTICK DRIVER
 M:	Maxim Levitsky <maximlevitsky@gmail.com>
 S:	Maintained
-F:	drivers/mtd/nand/r852.c
-F:	drivers/mtd/nand/r852.h
+F:	drivers/memstick/host/r592.*
 
-RICOH R5C592 MEMORYSTICK DRIVER
+RICOH SMARTMEDIA/XD DRIVER
 M:	Maxim Levitsky <maximlevitsky@gmail.com>
 S:	Maintained
-F:	drivers/memstick/host/r592.*
+F:	drivers/mtd/nand/r852.c
+F:	drivers/mtd/nand/r852.h
 
 ROCCAT DRIVERS
 M:	Stefan Achatz <erazor_de@users.sourceforge.net>
@@ -11316,6 +11388,23 @@ S:	Supported
 F:	drivers/s390/block/dasd*
 F:	block/partitions/ibm.c
 
+S390 IOMMU (PCI)
+M:	Gerald Schaefer <gerald.schaefer@de.ibm.com>
+L:	linux-s390@vger.kernel.org
+W:	http://www.ibm.com/developerworks/linux/linux390/
+S:	Supported
+F:	drivers/iommu/s390-iommu.c
+
+S390 IUCV NETWORK LAYER
+M:	Julian Wiedmann <jwi@linux.vnet.ibm.com>
+M:	Ursula Braun <ubraun@linux.vnet.ibm.com>
+L:	linux-s390@vger.kernel.org
+W:	http://www.ibm.com/developerworks/linux/linux390/
+S:	Supported
+F:	drivers/s390/net/*iucv*
+F:	include/net/iucv/
+F:	net/iucv/
+
 S390 NETWORK DRIVERS
 M:	Julian Wiedmann <jwi@linux.vnet.ibm.com>
 M:	Ursula Braun <ubraun@linux.vnet.ibm.com>
@@ -11333,6 +11422,16 @@ S:	Supported
 F:	arch/s390/pci/
 F:	drivers/pci/hotplug/s390_pci_hpc.c
 
+S390 VFIO-CCW DRIVER
+M:	Cornelia Huck <cohuck@redhat.com>
+M:	Dong Jia Shi <bjsdjshi@linux.vnet.ibm.com>
+L:	linux-s390@vger.kernel.org
+L:	kvm@vger.kernel.org
+S:	Supported
+F:	drivers/s390/cio/vfio_ccw*
+F:	Documentation/s390/vfio-ccw.txt
+F:	include/uapi/linux/vfio_ccw.h
+
 S390 ZCRYPT DRIVER
 M:	Harald Freudenberger <freude@de.ibm.com>
 L:	linux-s390@vger.kernel.org
@@ -11347,33 +11446,6 @@ W:	http://www.ibm.com/developerworks/linux/linux390/
 S:	Supported
 F:	drivers/s390/scsi/zfcp_*
 
-S390 IUCV NETWORK LAYER
-M:	Julian Wiedmann <jwi@linux.vnet.ibm.com>
-M:	Ursula Braun <ubraun@linux.vnet.ibm.com>
-L:	linux-s390@vger.kernel.org
-W:	http://www.ibm.com/developerworks/linux/linux390/
-S:	Supported
-F:	drivers/s390/net/*iucv*
-F:	include/net/iucv/
-F:	net/iucv/
-
-S390 IOMMU (PCI)
-M:	Gerald Schaefer <gerald.schaefer@de.ibm.com>
-L:	linux-s390@vger.kernel.org
-W:	http://www.ibm.com/developerworks/linux/linux390/
-S:	Supported
-F:	drivers/iommu/s390-iommu.c
-
-S390 VFIO-CCW DRIVER
-M:	Cornelia Huck <cohuck@redhat.com>
-M:	Dong Jia Shi <bjsdjshi@linux.vnet.ibm.com>
-L:	linux-s390@vger.kernel.org
-L:	kvm@vger.kernel.org
-S:	Supported
-F:	drivers/s390/cio/vfio_ccw*
-F:	Documentation/s390/vfio-ccw.txt
-F:	include/uapi/linux/vfio_ccw.h
-
 S3C24XX SD/MMC Driver
 M:	Ben Dooks <ben-linux@fluff.org>
 L:	linux-arm-kernel@lists.infradead.org (moderated for non-subscribers)
@@ -11407,12 +11479,6 @@ F:	drivers/media/common/saa7146/
 F:	drivers/media/pci/saa7146/
 F:	include/media/saa7146*
 
-SAMSUNG LAPTOP DRIVER
-M:	Corentin Chary <corentin.chary@gmail.com>
-L:	platform-driver-x86@vger.kernel.org
-S:	Maintained
-F:	drivers/platform/x86/samsung-laptop.c
-
 SAMSUNG AUDIO (ASoC) DRIVERS
 M:	Krzysztof Kozlowski <krzk@kernel.org>
 M:	Sangbeom Kim <sbkim73@samsung.com>
@@ -11435,6 +11501,12 @@ L:	linux-fbdev@vger.kernel.org
 S:	Maintained
 F:	drivers/video/fbdev/s3c-fb.c
 
+SAMSUNG LAPTOP DRIVER
+M:	Corentin Chary <corentin.chary@gmail.com>
+L:	platform-driver-x86@vger.kernel.org
+S:	Maintained
+F:	drivers/platform/x86/samsung-laptop.c
+
 SAMSUNG MULTIFUNCTION PMIC DEVICE DRIVERS
 M:	Sangbeom Kim <sbkim73@samsung.com>
 M:	Krzysztof Kozlowski <krzk@kernel.org>
@@ -11453,22 +11525,6 @@ F:	Documentation/devicetree/bindings/regulator/samsung,s2m*.txt
 F:	Documentation/devicetree/bindings/regulator/samsung,s5m*.txt
 F:	Documentation/devicetree/bindings/clock/samsung,s2mps11.txt
 
-SAMSUNG S5P Security SubSystem (SSS) DRIVER
-M:	Krzysztof Kozlowski <krzk@kernel.org>
-M:	Vladimir Zapolskiy <vz@mleia.com>
-L:	linux-crypto@vger.kernel.org
-L:	linux-samsung-soc@vger.kernel.org
-S:	Maintained
-F:	drivers/crypto/s5p-sss.c
-
-SAMSUNG S5P/EXYNOS4 SOC SERIES CAMERA SUBSYSTEM DRIVERS
-M:	Kyungmin Park <kyungmin.park@samsung.com>
-M:	Sylwester Nawrocki <s.nawrocki@samsung.com>
-L:	linux-media@vger.kernel.org
-Q:	https://patchwork.linuxtv.org/project/linux-media/list/
-S:	Supported
-F:	drivers/media/platform/exynos4-is/
-
 SAMSUNG S3C24XX/S3C64XX SOC SERIES CAMIF DRIVER
 M:	Sylwester Nawrocki <sylvester.nawrocki@gmail.com>
 L:	linux-media@vger.kernel.org
@@ -11477,6 +11533,13 @@ S:	Maintained
 F:	drivers/media/platform/s3c-camif/
 F:	include/media/drv-intf/s3c_camif.h
 
+SAMSUNG S3FWRN5 NFC DRIVER
+M:	Robert Baldyga <r.baldyga@samsung.com>
+M:	Krzysztof Opasiak <k.opasiak@samsung.com>
+L:	linux-nfc@lists.01.org (moderated for non-subscribers)
+S:	Supported
+F:	drivers/nfc/s3fwrn5
+
 SAMSUNG S5C73M3 CAMERA DRIVER
 M:	Kyungmin Park <kyungmin.park@samsung.com>
 M:	Andrzej Hajda <a.hajda@samsung.com>
@@ -11491,12 +11554,21 @@ L:	linux-media@vger.kernel.org
 S:	Supported
 F:	drivers/media/i2c/s5k5baf.c
 
-SAMSUNG S3FWRN5 NFC DRIVER
-M:	Robert Baldyga <r.baldyga@samsung.com>
-M:	Krzysztof Opasiak <k.opasiak@samsung.com>
-L:	linux-nfc@lists.01.org (moderated for non-subscribers)
+SAMSUNG S5P Security SubSystem (SSS) DRIVER
+M:	Krzysztof Kozlowski <krzk@kernel.org>
+M:	Vladimir Zapolskiy <vz@mleia.com>
+L:	linux-crypto@vger.kernel.org
+L:	linux-samsung-soc@vger.kernel.org
+S:	Maintained
+F:	drivers/crypto/s5p-sss.c
+
+SAMSUNG S5P/EXYNOS4 SOC SERIES CAMERA SUBSYSTEM DRIVERS
+M:	Kyungmin Park <kyungmin.park@samsung.com>
+M:	Sylwester Nawrocki <s.nawrocki@samsung.com>
+L:	linux-media@vger.kernel.org
+Q:	https://patchwork.linuxtv.org/project/linux-media/list/
 S:	Supported
-F:	drivers/nfc/s3fwrn5
+F:	drivers/media/platform/exynos4-is/
 
 SAMSUNG SOC CLOCK DRIVERS
 M:	Sylwester Nawrocki <s.nawrocki@samsung.com>
@@ -11549,126 +11621,6 @@ F:	drivers/phy/samsung/phy-s5pv210-usb2.c
 F:	drivers/phy/samsung/phy-samsung-usb2.c
 F:	drivers/phy/samsung/phy-samsung-usb2.h
 
-SERIAL DRIVERS
-M:	Greg Kroah-Hartman <gregkh@linuxfoundation.org>
-L:	linux-serial@vger.kernel.org
-S:	Maintained
-F:	Documentation/devicetree/bindings/serial/
-F:	drivers/tty/serial/
-
-SERIAL DEVICE BUS
-M:	Rob Herring <robh@kernel.org>
-L:	linux-serial@vger.kernel.org
-S:	Maintained
-F:	Documentation/devicetree/bindings/serial/slave-device.txt
-F:	drivers/tty/serdev/
-F:	include/linux/serdev.h
-
-SERIAL IR RECEIVER
-M:	Sean Young <sean@mess.org>
-L:	linux-media@vger.kernel.org
-S:	Maintained
-F:	drivers/media/rc/serial_ir.c
-
-STI CEC DRIVER
-M:	Benjamin Gaignard <benjamin.gaignard@linaro.org>
-S:	Maintained
-F:	drivers/staging/media/st-cec/
-F:	Documentation/devicetree/bindings/media/stih-cec.txt
-
-SHARED MEMORY COMMUNICATIONS (SMC) SOCKETS
-M:	Ursula Braun <ubraun@linux.vnet.ibm.com>
-L:	linux-s390@vger.kernel.org
-W:	http://www.ibm.com/developerworks/linux/linux390/
-S:	Supported
-F:	net/smc/
-
-SYNOPSYS DESIGNWARE DMAC DRIVER
-M:	Viresh Kumar <vireshk@kernel.org>
-M:	Andy Shevchenko <andriy.shevchenko@linux.intel.com>
-S:	Maintained
-F:	include/linux/dma/dw.h
-F:	include/linux/platform_data/dma-dw.h
-F:	drivers/dma/dw/
-
-SYNOPSYS DESIGNWARE ENTERPRISE ETHERNET DRIVER
-M:	Jie Deng <jiedeng@synopsys.com>
-L:	netdev@vger.kernel.org
-S:	Supported
-F:	drivers/net/ethernet/synopsys/
-
-SYNOPSYS DESIGNWARE I2C DRIVER
-M:	Jarkko Nikula <jarkko.nikula@linux.intel.com>
-R:	Andy Shevchenko <andriy.shevchenko@linux.intel.com>
-R:	Mika Westerberg <mika.westerberg@linux.intel.com>
-L:	linux-i2c@vger.kernel.org
-S:	Maintained
-F:	drivers/i2c/busses/i2c-designware-*
-F:	include/linux/platform_data/i2c-designware.h
-
-SYNOPSYS DESIGNWARE MMC/SD/SDIO DRIVER
-M:	Jaehoon Chung <jh80.chung@samsung.com>
-L:	linux-mmc@vger.kernel.org
-S:	Maintained
-F:	drivers/mmc/host/dw_mmc*
-
-SYSTEM TRACE MODULE CLASS
-M:	Alexander Shishkin <alexander.shishkin@linux.intel.com>
-S:	Maintained
-T:	git git://git.kernel.org/pub/scm/linux/kernel/git/ash/stm.git
-F:	Documentation/trace/stm.txt
-F:	drivers/hwtracing/stm/
-F:	include/linux/stm.h
-F:	include/uapi/linux/stm.h
-
-TEE SUBSYSTEM
-M:	Jens Wiklander <jens.wiklander@linaro.org>
-S:	Maintained
-F:	include/linux/tee_drv.h
-F:	include/uapi/linux/tee.h
-F:	drivers/tee/
-F:	Documentation/tee.txt
-
-THUNDERBOLT DRIVER
-M:	Andreas Noever <andreas.noever@gmail.com>
-M:	Michael Jamet <michael.jamet@intel.com>
-M:	Mika Westerberg <mika.westerberg@linux.intel.com>
-M:	Yehezkel Bernat <yehezkel.bernat@intel.com>
-S:	Maintained
-F:	drivers/thunderbolt/
-
-TI BQ27XXX POWER SUPPLY DRIVER
-R:	Andrew F. Davis <afd@ti.com>
-F:	include/linux/power/bq27xxx_battery.h
-F:	drivers/power/supply/bq27xxx_battery.c
-F:	drivers/power/supply/bq27xxx_battery_i2c.c
-
-TIMEKEEPING, CLOCKSOURCE CORE, NTP, ALARMTIMER
-M:	John Stultz <john.stultz@linaro.org>
-M:	Thomas Gleixner <tglx@linutronix.de>
-R:	Stephen Boyd <sboyd@codeaurora.org>
-L:	linux-kernel@vger.kernel.org
-T:	git git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git timers/core
-S:	Supported
-F:	include/linux/clocksource.h
-F:	include/linux/time.h
-F:	include/linux/timex.h
-F:	include/uapi/linux/time.h
-F:	include/uapi/linux/timex.h
-F:	kernel/time/clocksource.c
-F:	kernel/time/time*.c
-F:	kernel/time/alarmtimer.c
-F:	kernel/time/ntp.c
-F:	tools/testing/selftests/timers/
-
-TI TRF7970A NFC DRIVER
-M:	Mark Greer <mgreer@animalcreek.com>
-L:	linux-wireless@vger.kernel.org
-L:	linux-nfc@lists.01.org (moderated for non-subscribers)
-S:	Supported
-F:	drivers/nfc/trf7970a.c
-F:	Documentation/devicetree/bindings/net/nfc/trf7970a.txt
-
 SC1200 WDT DRIVER
 M:	Zwane Mwaikambo <zwanem@gmail.com>
 S:	Maintained
@@ -11697,16 +11649,6 @@ M:	Lubomir Rintel <lkundrak@v3.sk>
 S:	Supported
 F:	drivers/char/pcmcia/scr24x_cs.c
 
-SYSTEM CONTROL & POWER INTERFACE (SCPI) Message Protocol drivers
-M:	Sudeep Holla <sudeep.holla@arm.com>
-L:	linux-arm-kernel@lists.infradead.org
-S:	Maintained
-F:	Documentation/devicetree/bindings/arm/arm,scpi.txt
-F:	drivers/clk/clk-scpi.c
-F:	drivers/cpufreq/scpi-cpufreq.c
-F:	drivers/firmware/arm_scpi.c
-F:	include/linux/scpi_protocol.h
-
 SCSI CDROM DRIVER
 M:	Jens Axboe <axboe@kernel.dk>
 L:	linux-scsi@vger.kernel.org
@@ -11791,14 +11733,6 @@ L:	sdricohcs-devel@lists.sourceforge.net (subscribers-only)
 S:	Maintained
 F:	drivers/mmc/host/sdricoh_cs.c
 
-SECURE DIGITAL HOST CONTROLLER INTERFACE (SDHCI) DRIVER
-M:	Adrian Hunter <adrian.hunter@intel.com>
-L:	linux-mmc@vger.kernel.org
-T:	git git://git.infradead.org/users/ahunter/linux-sdhci.git
-S:	Maintained
-F:	drivers/mmc/host/sdhci*
-F:	include/linux/mmc/sdhci*
-
 SECURE COMPUTING
 M:	Kees Cook <keescook@chromium.org>
 R:	Andy Lutomirski <luto@amacapital.net>
@@ -11821,6 +11755,14 @@ L:	bcm-kernel-feedback-list@broadcom.com
 S:	Maintained
 F:	drivers/mmc/host/sdhci-brcmstb*
 
+SECURE DIGITAL HOST CONTROLLER INTERFACE (SDHCI) DRIVER
+M:	Adrian Hunter <adrian.hunter@intel.com>
+L:	linux-mmc@vger.kernel.org
+T:	git git://git.infradead.org/users/ahunter/linux-sdhci.git
+S:	Maintained
+F:	drivers/mmc/host/sdhci*
+F:	include/linux/mmc/sdhci*
+
 SECURE DIGITAL HOST CONTROLLER INTERFACE (SDHCI) SAMSUNG DRIVER
 M:	Ben Dooks <ben-linux@fluff.org>
 M:	Jaehoon Chung <jh80.chung@samsung.com>
@@ -11845,6 +11787,10 @@ F:	block/opal_proto.h
 F:	include/linux/sed*
 F:	include/uapi/linux/sed*
 
+SECURITY CONTACT
+M:	Security Officers <security@kernel.org>
+S:	Supported
+
 SECURITY SUBSYSTEM
 M:	James Morris <james.l.morris@oracle.com>
 M:	"Serge E. Hallyn" <serge@hallyn.com>
@@ -11854,10 +11800,6 @@ W:	http://kernsec.org/
 S:	Supported
 F:	security/
 
-SECURITY CONTACT
-M:	Security Officers <security@kernel.org>
-S:	Supported
-
 SELINUX SECURITY MODULE
 M:	Paul Moore <paul@paul-moore.com>
 M:	Stephen Smalley <sds@tycho.nsa.gov>
@@ -11871,62 +11813,32 @@ F:	security/selinux/
 F:	scripts/selinux/
 F:	Documentation/admin-guide/LSM/SELinux.rst
 
-APPARMOR SECURITY MODULE
-M:	John Johansen <john.johansen@canonical.com>
-L:	apparmor@lists.ubuntu.com (subscribers-only, general discussion)
-W:	apparmor.wiki.kernel.org
-T:	git git://git.kernel.org/pub/scm/linux/kernel/git/jj/apparmor-dev.git
-S:	Supported
-F:	security/apparmor/
-F:	Documentation/admin-guide/LSM/apparmor.rst
-
-LOADPIN SECURITY MODULE
-M:	Kees Cook <keescook@chromium.org>
-T:	git git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux.git lsm/loadpin
-S:	Supported
-F:	security/loadpin/
-F:	Documentation/admin-guide/LSM/LoadPin.rst
-
-YAMA SECURITY MODULE
-M:	Kees Cook <keescook@chromium.org>
-T:	git git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux.git yama/tip
-S:	Supported
-F:	security/yama/
-F:	Documentation/admin-guide/LSM/Yama.rst
-
 SENSABLE PHANTOM
 M:	Jiri Slaby <jirislaby@gmail.com>
 S:	Maintained
 F:	drivers/misc/phantom.c
 F:	include/uapi/linux/phantom.h
 
-Emulex 10Gbps iSCSI - OneConnect DRIVER
-M:	Subbu Seetharaman <subbu.seetharaman@broadcom.com>
-M:	Ketan Mukadam <ketan.mukadam@broadcom.com>
-M:	Jitendra Bhivare <jitendra.bhivare@broadcom.com>
-L:	linux-scsi@vger.kernel.org
-W:	http://www.broadcom.com
-S:	Supported
-F:	drivers/scsi/be2iscsi/
+SERIAL DEVICE BUS
+M:	Rob Herring <robh@kernel.org>
+L:	linux-serial@vger.kernel.org
+S:	Maintained
+F:	Documentation/devicetree/bindings/serial/slave-device.txt
+F:	drivers/tty/serdev/
+F:	include/linux/serdev.h
 
-Emulex 10Gbps NIC BE2, BE3-R, Lancer, Skyhawk-R DRIVER (be2net)
-M:	Sathya Perla <sathya.perla@broadcom.com>
-M:	Ajit Khaparde <ajit.khaparde@broadcom.com>
-M:	Sriharsha Basavapatna <sriharsha.basavapatna@broadcom.com>
-M:	Somnath Kotur <somnath.kotur@broadcom.com>
-L:	netdev@vger.kernel.org
-W:	http://www.emulex.com
-S:	Supported
-F:	drivers/net/ethernet/emulex/benet/
+SERIAL DRIVERS
+M:	Greg Kroah-Hartman <gregkh@linuxfoundation.org>
+L:	linux-serial@vger.kernel.org
+S:	Maintained
+F:	Documentation/devicetree/bindings/serial/
+F:	drivers/tty/serial/
 
-EMULEX ONECONNECT ROCE DRIVER
-M:	Selvin Xavier <selvin.xavier@broadcom.com>
-M:	Devesh Sharma <devesh.sharma@broadcom.com>
-L:	linux-rdma@vger.kernel.org
-W:	http://www.broadcom.com
-S:	Odd Fixes
-F:	drivers/infiniband/hw/ocrdma/
-F:	include/uapi/rdma/ocrdma-abi.h
+SERIAL IR RECEIVER
+M:	Sean Young <sean@mess.org>
+L:	linux-media@vger.kernel.org
+S:	Maintained
+F:	drivers/media/rc/serial_ir.c
 
 SFC NETWORK DRIVER
 M:	Solarflare linux maintainers <linux-net-drivers@solarflare.com>
@@ -11955,6 +11867,24 @@ M:	Robin Holt <robinmholt@gmail.com>
 S:	Maintained
 F:	drivers/misc/sgi-xp/
 
+SHARED MEMORY COMMUNICATIONS (SMC) SOCKETS
+M:	Ursula Braun <ubraun@linux.vnet.ibm.com>
+L:	linux-s390@vger.kernel.org
+W:	http://www.ibm.com/developerworks/linux/linux390/
+S:	Supported
+F:	net/smc/
+
+SH_VEU V4L2 MEM2MEM DRIVER
+L:	linux-media@vger.kernel.org
+S:	Orphan
+F:	drivers/media/platform/sh_veu.c
+
+SH_VOU V4L2 OUTPUT DRIVER
+L:	linux-media@vger.kernel.org
+S:	Orphan
+F:	drivers/media/platform/sh_vou.c
+F:	include/media/drv-intf/sh_vou.h
+
 SI2157 MEDIA DRIVER
 M:	Antti Palosaari <crope@iki.fi>
 L:	linux-media@vger.kernel.org
@@ -12037,24 +11967,14 @@ S:	Maintained
 F:	drivers/input/touchscreen/silead.c
 F:	drivers/platform/x86/silead_dmi.c
 
-SIMPLEFB FB DRIVER
-M:	Hans de Goede <hdegoede@redhat.com>
+SILICON MOTION SM712 FRAME BUFFER DRIVER
+M:	Sudip Mukherjee <sudipm.mukherjee@gmail.com>
+M:	Teddy Wang <teddy.wang@siliconmotion.com>
+M:	Sudip Mukherjee <sudip.mukherjee@codethink.co.uk>
 L:	linux-fbdev@vger.kernel.org
 S:	Maintained
-F:	Documentation/devicetree/bindings/display/simple-framebuffer.txt
-F:	drivers/video/fbdev/simplefb.c
-F:	include/linux/platform_data/simplefb.h
-
-SH_VEU V4L2 MEM2MEM DRIVER
-L:	linux-media@vger.kernel.org
-S:	Orphan
-F:	drivers/media/platform/sh_veu.c
-
-SH_VOU V4L2 OUTPUT DRIVER
-L:	linux-media@vger.kernel.org
-S:	Orphan
-F:	drivers/media/platform/sh_vou.c
-F:	include/media/drv-intf/sh_vou.h
+F:	drivers/video/fbdev/sm712*
+F:	Documentation/fb/sm712fb.txt
 
 SIMPLE FIRMWARE INTERFACE (SFI)
 M:	Len Brown <lenb@kernel.org>
@@ -12066,6 +11986,14 @@ F:	arch/x86/platform/sfi/
 F:	drivers/sfi/
 F:	include/linux/sfi*.h
 
+SIMPLEFB FB DRIVER
+M:	Hans de Goede <hdegoede@redhat.com>
+L:	linux-fbdev@vger.kernel.org
+S:	Maintained
+F:	Documentation/devicetree/bindings/display/simple-framebuffer.txt
+F:	drivers/video/fbdev/simplefb.c
+F:	include/linux/platform_data/simplefb.h
+
 SIMTEC EB110ATX (Chalice CATS)
 P:	Ben Dooks
 P:	Vincent Sanders <vince@simtec.co.uk>
@@ -12090,61 +12018,6 @@ F:	lib/siphash.c
 F:	lib/test_siphash.c
 F:	include/linux/siphash.h
 
-TI DAVINCI MACHINE SUPPORT
-M:	Sekhar Nori <nsekhar@ti.com>
-M:	Kevin Hilman <khilman@kernel.org>
-L:	linux-arm-kernel@lists.infradead.org (moderated for non-subscribers)
-T:	git git://git.kernel.org/pub/scm/linux/kernel/git/nsekhar/linux-davinci.git
-S:	Supported
-F:	arch/arm/mach-davinci/
-F:	drivers/i2c/busses/i2c-davinci.c
-F:	arch/arm/boot/dts/da850*
-
-TI DAVINCI SERIES MEDIA DRIVER
-M:	"Lad, Prabhakar" <prabhakar.csengg@gmail.com>
-L:	linux-media@vger.kernel.org
-W:	https://linuxtv.org
-Q:	http://patchwork.linuxtv.org/project/linux-media/list/
-T:	git git://linuxtv.org/mhadli/v4l-dvb-davinci_devices.git
-S:	Maintained
-F:	drivers/media/platform/davinci/
-F:	include/media/davinci/
-
-TI DAVINCI SERIES GPIO DRIVER
-M:	Keerthy <j-keerthy@ti.com>
-L:	linux-gpio@vger.kernel.org
-S:	Maintained
-F:	Documentation/devicetree/bindings/gpio/gpio-davinci.txt
-F:	drivers/gpio/gpio-davinci.c
-
-TI AM437X VPFE DRIVER
-M:	"Lad, Prabhakar" <prabhakar.csengg@gmail.com>
-L:	linux-media@vger.kernel.org
-W:	https://linuxtv.org
-Q:	http://patchwork.linuxtv.org/project/linux-media/list/
-T:	git git://linuxtv.org/mhadli/v4l-dvb-davinci_devices.git
-S:	Maintained
-F:	drivers/media/platform/am437x/
-
-OV2659 OMNIVISION SENSOR DRIVER
-M:	"Lad, Prabhakar" <prabhakar.csengg@gmail.com>
-L:	linux-media@vger.kernel.org
-W:	https://linuxtv.org
-Q:	http://patchwork.linuxtv.org/project/linux-media/list/
-T:	git git://linuxtv.org/mhadli/v4l-dvb-davinci_devices.git
-S:	Maintained
-F:	drivers/media/i2c/ov2659.c
-F:	include/media/i2c/ov2659.h
-
-SILICON MOTION SM712 FRAME BUFFER DRIVER
-M:	Sudip Mukherjee <sudipm.mukherjee@gmail.com>
-M:	Teddy Wang <teddy.wang@siliconmotion.com>
-M:	Sudip Mukherjee <sudip.mukherjee@codethink.co.uk>
-L:	linux-fbdev@vger.kernel.org
-S:	Maintained
-F:	drivers/video/fbdev/sm712*
-F:	Documentation/fb/sm712fb.txt
-
 SIS 190 ETHERNET DRIVER
 M:	Francois Romieu <romieu@fr.zoreil.com>
 L:	netdev@vger.kernel.org
@@ -12205,14 +12078,6 @@ S:	Maintained
 F:	Documentation/admin-guide/LSM/Smack.rst
 F:	security/smack/
 
-DRIVERS FOR ADAPTIVE VOLTAGE SCALING (AVS)
-M:	Kevin Hilman <khilman@kernel.org>
-M:	Nishanth Menon <nm@ti.com>
-S:	Maintained
-F:	drivers/power/avs/
-F:	include/linux/power/smartreflex.h
-L:	linux-pm@vger.kernel.org
-
 SMC91x ETHERNET DRIVER
 M:	Nicolas Pitre <nico@fluxnic.net>
 S:	Odd Fixes
@@ -12250,6 +12115,12 @@ S:	Supported
 F:	Documentation/hwmon/sch5627
 F:	drivers/hwmon/sch5627.c
 
+SMSC UFX6000 and UFX7000 USB to VGA DRIVER
+M:	Steve Glendinning <steve.glendinning@shawell.net>
+L:	linux-fbdev@vger.kernel.org
+S:	Maintained
+F:	drivers/video/fbdev/smscufx.c
+
 SMSC47B397 HARDWARE MONITOR DRIVER
 M:	Jean Delvare <jdelvare@suse.com>
 L:	linux-hwmon@vger.kernel.org
@@ -12270,12 +12141,6 @@ L:	netdev@vger.kernel.org
 S:	Maintained
 F:	drivers/net/ethernet/smsc/smsc9420.*
 
-SMSC UFX6000 and UFX7000 USB to VGA DRIVER
-M:	Steve Glendinning <steve.glendinning@shawell.net>
-L:	linux-fbdev@vger.kernel.org
-S:	Maintained
-F:	drivers/video/fbdev/smscufx.c
-
 SOC-CAMERA V4L2 SUBSYSTEM
 M:	Guennadi Liakhovetski <g.liakhovetski@gmx.de>
 L:	linux-media@vger.kernel.org
@@ -12290,6 +12155,15 @@ M:	Chris Boot <bootc@bootc.net>
 S:	Maintained
 F:	drivers/leds/leds-net48xx.c
 
+SOFT-ROCE DRIVER (rxe)
+M:	Moni Shoua <monis@mellanox.com>
+L:	linux-rdma@vger.kernel.org
+S:	Supported
+W:	https://github.com/SoftRoCE/rxe-dev/wiki/rxe-dev:-Home
+Q:	http://patchwork.kernel.org/project/linux-rdma/list/
+F:	drivers/infiniband/sw/rxe/
+F:	include/uapi/rdma/rdma_user_rxe.h
+
 SOFTLOGIC 6x10 MPEG CODEC
 M:	Bluecherry Maintainers <maintainers@bluecherrydvr.com>
 M:	Anton Sviridenko <anton@corp.bluecherry.net>
@@ -12322,16 +12196,6 @@ S:	Maintained
 F:	drivers/ssb/
 F:	include/linux/ssb/
 
-SONY VAIO CONTROL DEVICE DRIVER
-M:	Mattia Dongili <malattia@linux.it>
-L:	platform-driver-x86@vger.kernel.org
-W:	http://www.linux.it/~malattia/wiki/index.php/Sony_drivers
-S:	Maintained
-F:	Documentation/laptops/sony-laptop.txt
-F:	drivers/char/sonypi.c
-F:	drivers/platform/x86/sony-laptop.c
-F:	include/linux/sony-laptop.h
-
 SONY MEMORYSTICK CARD SUPPORT
 M:	Alex Dubov <oakad@yahoo.com>
 W:	http://tifmxx.berlios.de/
@@ -12343,6 +12207,16 @@ M:	Maxim Levitsky <maximlevitsky@gmail.com>
 S:	Maintained
 F:	drivers/memstick/core/ms_block.*
 
+SONY VAIO CONTROL DEVICE DRIVER
+M:	Mattia Dongili <malattia@linux.it>
+L:	platform-driver-x86@vger.kernel.org
+W:	http://www.linux.it/~malattia/wiki/index.php/Sony_drivers
+S:	Maintained
+F:	Documentation/laptops/sony-laptop.txt
+F:	drivers/char/sonypi.c
+F:	drivers/platform/x86/sony-laptop.c
+F:	include/linux/sony-laptop.h
+
 SOUND
 M:	Jaroslav Kysela <perex@perex.cz>
 M:	Takashi Iwai <tiwai@suse.com>
@@ -12368,6 +12242,13 @@ F:	include/uapi/sound/compress_*
 F:	sound/core/compress_offload.c
 F:	sound/soc/soc-compress.c
 
+SOUND - DMAENGINE HELPERS
+M:	Lars-Peter Clausen <lars@metafoo.de>
+S:	Supported
+F:	include/sound/dmaengine_pcm.h
+F:	sound/core/pcm_dmaengine.c
+F:	sound/soc/soc-generic-dmaengine-pcm.c
+
 SOUND - SOC LAYER / DYNAMIC AUDIO POWER MANAGEMENT (ASoC)
 M:	Liam Girdwood <lgirdwood@gmail.com>
 M:	Mark Brown <broonie@kernel.org>
@@ -12380,13 +12261,6 @@ F:	Documentation/sound/alsa/soc/
 F:	sound/soc/
 F:	include/sound/soc*
 
-SOUND - DMAENGINE HELPERS
-M:	Lars-Peter Clausen <lars@metafoo.de>
-S:	Supported
-F:	include/sound/dmaengine_pcm.h
-F:	sound/core/pcm_dmaengine.c
-F:	sound/soc/soc-generic-dmaengine-pcm.c
-
 SP2 MEDIA DRIVER
 M:	Olli Salonen <olli.salonen@iki.fi>
 L:	linux-media@vger.kernel.org
@@ -12429,21 +12303,21 @@ T:	git git://git.kernel.org/pub/scm/devel/sparse/chrisl/sparse.git
 S:	Maintained
 F:	include/linux/compiler.h
 
-SPEAR PLATFORM SUPPORT
+SPEAR CLOCK FRAMEWORK SUPPORT
 M:	Viresh Kumar <vireshk@kernel.org>
-M:	Shiraz Hashim <shiraz.linux.kernel@gmail.com>
 L:	linux-arm-kernel@lists.infradead.org (moderated for non-subscribers)
 W:	http://www.st.com/spear
 S:	Maintained
-F:	arch/arm/boot/dts/spear*
-F:	arch/arm/mach-spear/
+F:	drivers/clk/spear/
 
-SPEAR CLOCK FRAMEWORK SUPPORT
+SPEAR PLATFORM SUPPORT
 M:	Viresh Kumar <vireshk@kernel.org>
+M:	Shiraz Hashim <shiraz.linux.kernel@gmail.com>
 L:	linux-arm-kernel@lists.infradead.org (moderated for non-subscribers)
 W:	http://www.st.com/spear
 S:	Maintained
-F:	drivers/clk/spear/
+F:	arch/arm/boot/dts/spear*
+F:	arch/arm/mach-spear/
 
 SPI NOR SUBSYSTEM
 M:	Cyrille Pitchen <cyrille.pitchen@wedev4u.fr>
@@ -12451,7 +12325,8 @@ M:	Marek Vasut <marek.vasut@gmail.com>
 L:	linux-mtd@lists.infradead.org
 W:	http://www.linux-mtd.infradead.org/
 Q:	http://patchwork.ozlabs.org/project/linux-mtd/list/
-T:	git git://github.com/spi-nor/linux.git
+T:	git git://git.infradead.org/linux-mtd.git spi-nor/fixes
+T:	git git://git.infradead.org/l2-mtd.git spi-nor/next
 S:	Maintained
 F:	drivers/mtd/spi-nor/
 F:	include/linux/mtd/spi-nor.h
@@ -12476,6 +12351,15 @@ S:	Supported
 F:	Documentation/networking/spider_net.txt
 F:	drivers/net/ethernet/toshiba/spider_net*
 
+SPMI SUBSYSTEM
+R:	Stephen Boyd <sboyd@codeaurora.org>
+L:	linux-arm-msm@vger.kernel.org
+F:	Documentation/devicetree/bindings/spmi/
+F:	drivers/spmi/
+F:	include/dt-bindings/spmi/spmi.h
+F:	include/linux/spmi.h
+F:	include/trace/events/spmi.h
+
 SPU FILE SYSTEM
 M:	Jeremy Kerr <jk@ozlabs.org>
 L:	linuxppc-dev@lists.ozlabs.org
@@ -12504,13 +12388,6 @@ L:	stable@vger.kernel.org
 S:	Supported
 F:	Documentation/process/stable-kernel-rules.rst
 
-STAGING SUBSYSTEM
-M:	Greg Kroah-Hartman <gregkh@linuxfoundation.org>
-T:	git git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging.git
-L:	devel@driverdev.osuosl.org
-S:	Supported
-F:	drivers/staging/
-
 STAGING - COMEDI
 M:	Ian Abbott <abbotti@mev.co.uk>
 M:	H Hartley Sweeten <hsweeten@visionengravers.com>
@@ -12600,11 +12477,39 @@ M:	Arnaud Patard <arnaud.patard@rtp-net.org>
 S:	Odd Fixes
 F:	drivers/staging/xgifb/
 
+STAGING SUBSYSTEM
+M:	Greg Kroah-Hartman <gregkh@linuxfoundation.org>
+T:	git git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging.git
+L:	devel@driverdev.osuosl.org
+S:	Supported
+F:	drivers/staging/
+
 STARFIRE/DURALAN NETWORK DRIVER
 M:	Ion Badulescu <ionut@badula.org>
 S:	Odd Fixes
 F:	drivers/net/ethernet/adaptec/starfire*
 
+STI CEC DRIVER
+M:	Benjamin Gaignard <benjamin.gaignard@linaro.org>
+S:	Maintained
+F:	drivers/staging/media/st-cec/
+F:	Documentation/devicetree/bindings/media/stih-cec.txt
+
+STK1160 USB VIDEO CAPTURE DRIVER
+M:	Ezequiel Garcia <ezequiel@vanguardiasur.com.ar>
+L:	linux-media@vger.kernel.org
+T:	git git://linuxtv.org/media_tree.git
+S:	Maintained
+F:	drivers/media/usb/stk1160/
+
+STMMAC ETHERNET DRIVER
+M:	Giuseppe Cavallaro <peppe.cavallaro@st.com>
+M:	Alexandre Torgue <alexandre.torgue@st.com>
+L:	netdev@vger.kernel.org
+W:	http://www.stlinux.com
+S:	Supported
+F:	drivers/net/ethernet/stmicro/stmmac/
+
 SUN3/3X
 M:	Sam Creasey <sammy@sammy.net>
 W:	http://sammy.net/sun3/
@@ -12676,6 +12581,20 @@ S:	Supported
 F:	net/switchdev/
 F:	include/net/switchdev.h
 
+SYNC FILE FRAMEWORK
+M:	Sumit Semwal <sumit.semwal@linaro.org>
+R:	Gustavo Padovan <gustavo@padovan.org>
+S:	Maintained
+L:	linux-media@vger.kernel.org
+L:	dri-devel@lists.freedesktop.org
+F:	drivers/dma-buf/sync_*
+F:	drivers/dma-buf/dma-fence*
+F:	drivers/dma-buf/sw_sync.c
+F:	include/linux/sync_file.h
+F:	include/uapi/linux/sync_file.h
+F:	Documentation/sync_file.txt
+T:	git git://anongit.freedesktop.org/drm/drm-misc
+
 SYNOPSYS ARC ARCHITECTURE
 M:	Vineet Gupta <vgupta@synopsys.com>
 L:	linux-snps-arc@lists.infradead.org
@@ -12694,6 +12613,35 @@ F:	arch/arc/plat-axs10x
 F:	arch/arc/boot/dts/ax*
 F:	Documentation/devicetree/bindings/arc/axs10*
 
+SYNOPSYS DESIGNWARE DMAC DRIVER
+M:	Viresh Kumar <vireshk@kernel.org>
+M:	Andy Shevchenko <andriy.shevchenko@linux.intel.com>
+S:	Maintained
+F:	include/linux/dma/dw.h
+F:	include/linux/platform_data/dma-dw.h
+F:	drivers/dma/dw/
+
+SYNOPSYS DESIGNWARE ENTERPRISE ETHERNET DRIVER
+M:	Jie Deng <jiedeng@synopsys.com>
+L:	netdev@vger.kernel.org
+S:	Supported
+F:	drivers/net/ethernet/synopsys/
+
+SYNOPSYS DESIGNWARE I2C DRIVER
+M:	Jarkko Nikula <jarkko.nikula@linux.intel.com>
+R:	Andy Shevchenko <andriy.shevchenko@linux.intel.com>
+R:	Mika Westerberg <mika.westerberg@linux.intel.com>
+L:	linux-i2c@vger.kernel.org
+S:	Maintained
+F:	drivers/i2c/busses/i2c-designware-*
+F:	include/linux/platform_data/i2c-designware.h
+
+SYNOPSYS DESIGNWARE MMC/SD/SDIO DRIVER
+M:	Jaehoon Chung <jh80.chung@samsung.com>
+L:	linux-mmc@vger.kernel.org
+S:	Maintained
+F:	drivers/mmc/host/dw_mmc*
+
 SYSTEM CONFIGURATION (SYSCON)
 M:	Lee Jones <lee.jones@linaro.org>
 M:	Arnd Bergmann <arnd@arndb.de>
@@ -12701,6 +12649,16 @@ T:	git git://git.kernel.org/pub/scm/linux/kernel/git/lee/mfd.git
 S:	Supported
 F:	drivers/mfd/syscon.c
 
+SYSTEM CONTROL & POWER INTERFACE (SCPI) Message Protocol drivers
+M:	Sudeep Holla <sudeep.holla@arm.com>
+L:	linux-arm-kernel@lists.infradead.org
+S:	Maintained
+F:	Documentation/devicetree/bindings/arm/arm,scpi.txt
+F:	drivers/clk/clk-scpi.c
+F:	drivers/cpufreq/scpi-cpufreq.c
+F:	drivers/firmware/arm_scpi.c
+F:	include/linux/scpi_protocol.h
+
 SYSTEM RESET/SHUTDOWN DRIVERS
 M:	Sebastian Reichel <sre@kernel.org>
 L:	linux-pm@vger.kernel.org
@@ -12709,6 +12667,15 @@ S:	Maintained
 F:	Documentation/devicetree/bindings/power/reset/
 F:	drivers/power/reset/
 
+SYSTEM TRACE MODULE CLASS
+M:	Alexander Shishkin <alexander.shishkin@linux.intel.com>
+S:	Maintained
+T:	git git://git.kernel.org/pub/scm/linux/kernel/git/ash/stm.git
+F:	Documentation/trace/stm.txt
+F:	drivers/hwtracing/stm/
+F:	include/linux/stm.h
+F:	include/uapi/linux/stm.h
+
 SYSV FILESYSTEM
 M:	Christoph Hellwig <hch@infradead.org>
 S:	Maintained
@@ -12878,6 +12845,14 @@ L:	linux-media@vger.kernel.org
 S:	Maintained
 F:	drivers/media/rc/ttusbir.c
 
+TEE SUBSYSTEM
+M:	Jens Wiklander <jens.wiklander@linaro.org>
+S:	Maintained
+F:	include/linux/tee_drv.h
+F:	include/uapi/linux/tee.h
+F:	drivers/tee/
+F:	Documentation/tee.txt
+
 TEGRA ARCHITECTURE SUPPORT
 M:	Thierry Reding <thierry.reding@gmail.com>
 M:	Jonathan Hunter <jonathanh@nvidia.com>
@@ -13009,6 +12984,23 @@ T:	git git://repo.or.cz/linux-2.6/linux-acpi-2.6/ibm-acpi-2.6.git
 S:	Maintained
 F:	drivers/platform/x86/thinkpad_acpi.c
 
+THUNDERBOLT DRIVER
+M:	Andreas Noever <andreas.noever@gmail.com>
+M:	Michael Jamet <michael.jamet@intel.com>
+M:	Mika Westerberg <mika.westerberg@linux.intel.com>
+M:	Yehezkel Bernat <yehezkel.bernat@intel.com>
+S:	Maintained
+F:	drivers/thunderbolt/
+
+TI AM437X VPFE DRIVER
+M:	"Lad, Prabhakar" <prabhakar.csengg@gmail.com>
+L:	linux-media@vger.kernel.org
+W:	https://linuxtv.org
+Q:	http://patchwork.linuxtv.org/project/linux-media/list/
+T:	git git://linuxtv.org/mhadli/v4l-dvb-davinci_devices.git
+S:	Maintained
+F:	drivers/media/platform/am437x/
+
 TI BANDGAP AND THERMAL DRIVER
 M:	Eduardo Valentin <edubezval@gmail.com>
 M:	Keerthy <j-keerthy@ti.com>
@@ -13017,13 +13009,11 @@ L:	linux-omap@vger.kernel.org
 S:	Maintained
 F:	drivers/thermal/ti-soc-thermal/
 
-TI VPE/CAL DRIVERS
-M:	Benoit Parrot <bparrot@ti.com>
-L:	linux-media@vger.kernel.org
-W:	http://linuxtv.org/
-Q:	http://patchwork.linuxtv.org/project/linux-media/list/
-S:	Maintained
-F:	drivers/media/platform/ti-vpe/
+TI BQ27XXX POWER SUPPLY DRIVER
+R:	Andrew F. Davis <afd@ti.com>
+F:	include/linux/power/bq27xxx_battery.h
+F:	drivers/power/supply/bq27xxx_battery.c
+F:	drivers/power/supply/bq27xxx_battery_i2c.c
 
 TI CDCE706 CLOCK DRIVER
 M:	Max Filippov <jcmvbkbc@gmail.com>
@@ -13037,6 +13027,33 @@ S:	Maintained
 F:	drivers/clk/ti/
 F:	include/linux/clk/ti.h
 
+TI DAVINCI MACHINE SUPPORT
+M:	Sekhar Nori <nsekhar@ti.com>
+M:	Kevin Hilman <khilman@kernel.org>
+L:	linux-arm-kernel@lists.infradead.org (moderated for non-subscribers)
+T:	git git://git.kernel.org/pub/scm/linux/kernel/git/nsekhar/linux-davinci.git
+S:	Supported
+F:	arch/arm/mach-davinci/
+F:	drivers/i2c/busses/i2c-davinci.c
+F:	arch/arm/boot/dts/da850*
+
+TI DAVINCI SERIES GPIO DRIVER
+M:	Keerthy <j-keerthy@ti.com>
+L:	linux-gpio@vger.kernel.org
+S:	Maintained
+F:	Documentation/devicetree/bindings/gpio/gpio-davinci.txt
+F:	drivers/gpio/gpio-davinci.c
+
+TI DAVINCI SERIES MEDIA DRIVER
+M:	"Lad, Prabhakar" <prabhakar.csengg@gmail.com>
+L:	linux-media@vger.kernel.org
+W:	https://linuxtv.org
+Q:	http://patchwork.linuxtv.org/project/linux-media/list/
+T:	git git://linuxtv.org/mhadli/v4l-dvb-davinci_devices.git
+S:	Maintained
+F:	drivers/media/platform/davinci/
+F:	include/media/davinci/
+
 TI ETHERNET SWITCH DRIVER (CPSW)
 R:	Grygorii Strashko <grygorii.strashko@ti.com>
 L:	linux-omap@vger.kernel.org
@@ -13060,7 +13077,6 @@ S:	Maintained
 F:	drivers/soc/ti/*
 T:	git git://git.kernel.org/pub/scm/linux/kernel/git/ssantosh/linux-keystone.git
 
-
 TI LM49xxx FAMILY ASoC CODEC DRIVERS
 M:	M R Swami Reddy <mr.swami.reddy@ti.com>
 M:	Vishwas A Deshpande <vishwas.a.deshpande@ti.com>
@@ -13105,12 +13121,28 @@ L:	alsa-devel@alsa-project.org (moderated for non-subscribers)
 S:	Odd Fixes
 F:	sound/soc/codecs/tas571x*
 
+TI TRF7970A NFC DRIVER
+M:	Mark Greer <mgreer@animalcreek.com>
+L:	linux-wireless@vger.kernel.org
+L:	linux-nfc@lists.01.org (moderated for non-subscribers)
+S:	Supported
+F:	drivers/nfc/trf7970a.c
+F:	Documentation/devicetree/bindings/net/nfc/trf7970a.txt
+
 TI TWL4030 SERIES SOC CODEC DRIVER
 M:	Peter Ujfalusi <peter.ujfalusi@ti.com>
 L:	alsa-devel@alsa-project.org (moderated for non-subscribers)
 S:	Maintained
 F:	sound/soc/codecs/twl4030*
 
+TI VPE/CAL DRIVERS
+M:	Benoit Parrot <bparrot@ti.com>
+L:	linux-media@vger.kernel.org
+W:	http://linuxtv.org/
+Q:	http://patchwork.linuxtv.org/project/linux-media/list/
+S:	Maintained
+F:	drivers/media/platform/ti-vpe/
+
 TI WILINK WIRELESS DRIVERS
 L:	linux-wireless@vger.kernel.org
 W:	http://wireless.kernel.org/en/users/Drivers/wl12xx
@@ -13120,16 +13152,6 @@ S:	Orphan
 F:	drivers/net/wireless/ti/
 F:	include/linux/wl12xx.h
 
-TIPC NETWORK LAYER
-M:	Jon Maloy <jon.maloy@ericsson.com>
-M:	Ying Xue <ying.xue@windriver.com>
-L:	netdev@vger.kernel.org (core kernel code)
-L:	tipc-discussion@lists.sourceforge.net (user apps, general discussion)
-W:	http://tipc.sourceforge.net/
-S:	Maintained
-F:	include/uapi/linux/tipc*.h
-F:	net/tipc/
-
 TILE ARCHITECTURE
 M:	Chris Metcalf <cmetcalf@mellanox.com>
 W:	http://www.mellanox.com/repository/solutions/tile-scm/
@@ -13145,6 +13167,34 @@ F:	drivers/tty/serial/tilegx.c
 F:	drivers/usb/host/*-tilegx.c
 F:	include/linux/usb/tilegx.h
 
+TIMEKEEPING, CLOCKSOURCE CORE, NTP, ALARMTIMER
+M:	John Stultz <john.stultz@linaro.org>
+M:	Thomas Gleixner <tglx@linutronix.de>
+R:	Stephen Boyd <sboyd@codeaurora.org>
+L:	linux-kernel@vger.kernel.org
+T:	git git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git timers/core
+S:	Supported
+F:	include/linux/clocksource.h
+F:	include/linux/time.h
+F:	include/linux/timex.h
+F:	include/uapi/linux/time.h
+F:	include/uapi/linux/timex.h
+F:	kernel/time/clocksource.c
+F:	kernel/time/time*.c
+F:	kernel/time/alarmtimer.c
+F:	kernel/time/ntp.c
+F:	tools/testing/selftests/timers/
+
+TIPC NETWORK LAYER
+M:	Jon Maloy <jon.maloy@ericsson.com>
+M:	Ying Xue <ying.xue@windriver.com>
+L:	netdev@vger.kernel.org (core kernel code)
+L:	tipc-discussion@lists.sourceforge.net (user apps, general discussion)
+W:	http://tipc.sourceforge.net/
+S:	Maintained
+F:	include/uapi/linux/tipc*.h
+F:	net/tipc/
+
 TLAN NETWORK DRIVER
 M:	Samuel Chessman <chessman@tux.org>
 L:	tlan-devel@lists.sourceforge.net (subscribers-only)
@@ -13153,6 +13203,38 @@ S:	Maintained
 F:	Documentation/networking/tlan.txt
 F:	drivers/net/ethernet/ti/tlan.*
 
+TM6000 VIDEO4LINUX DRIVER
+M:	Mauro Carvalho Chehab <mchehab@s-opensource.com>
+M:	Mauro Carvalho Chehab <mchehab@kernel.org>
+L:	linux-media@vger.kernel.org
+W:	https://linuxtv.org
+T:	git git://linuxtv.org/media_tree.git
+S:	Odd fixes
+F:	drivers/media/usb/tm6000/
+F:	Documentation/media/v4l-drivers/tm6000*
+
+TMIO/SDHI MMC DRIVER
+M:	Wolfram Sang <wsa+renesas@sang-engineering.com>
+L:	linux-mmc@vger.kernel.org
+S:	Supported
+F:	drivers/mmc/host/tmio_mmc*
+F:	drivers/mmc/host/renesas_sdhi*
+F:	include/linux/mfd/tmio.h
+
+TMP401 HARDWARE MONITOR DRIVER
+M:	Guenter Roeck <linux@roeck-us.net>
+L:	linux-hwmon@vger.kernel.org
+S:	Maintained
+F:	Documentation/hwmon/tmp401
+F:	drivers/hwmon/tmp401.c
+
+TMPFS (SHMEM FILESYSTEM)
+M:	Hugh Dickins <hughd@google.com>
+L:	linux-mm@kvack.org
+S:	Maintained
+F:	include/linux/shmem_fs.h
+F:	mm/shmem.c
+
 TOMOYO SECURITY MODULE
 M:	Kentaro Takeda <takedakn@nttdata.co.jp>
 M:	Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>
@@ -13189,12 +13271,6 @@ L:	platform-driver-x86@vger.kernel.org
 S:	Maintained
 F:	drivers/platform/x86/toshiba_haps.c
 
-TOSHIBA WMI HOTKEYS DRIVER
-M:	Azael Avalos <coproscefalo@gmail.com>
-L:	platform-driver-x86@vger.kernel.org
-S:	Maintained
-F:	drivers/platform/x86/toshiba-wmi.c
-
 TOSHIBA SMM DRIVER
 M:	Jonathan Buzzard <jonathan@buzzard.org.uk>
 W:	http://www.buzzard.org.uk/toshiba/
@@ -13210,62 +13286,11 @@ S:	Maintained
 F:	drivers/media/i2c/tc358743*
 F:	include/media/i2c/tc358743.h
 
-TMIO/SDHI MMC DRIVER
-M:	Wolfram Sang <wsa+renesas@sang-engineering.com>
-L:	linux-mmc@vger.kernel.org
-S:	Supported
-F:	drivers/mmc/host/tmio_mmc*
-F:	drivers/mmc/host/renesas_sdhi*
-F:	include/linux/mfd/tmio.h
-
-TMP401 HARDWARE MONITOR DRIVER
-M:	Guenter Roeck <linux@roeck-us.net>
-L:	linux-hwmon@vger.kernel.org
-S:	Maintained
-F:	Documentation/hwmon/tmp401
-F:	drivers/hwmon/tmp401.c
-
-TMPFS (SHMEM FILESYSTEM)
-M:	Hugh Dickins <hughd@google.com>
-L:	linux-mm@kvack.org
-S:	Maintained
-F:	include/linux/shmem_fs.h
-F:	mm/shmem.c
-
-TM6000 VIDEO4LINUX DRIVER
-M:	Mauro Carvalho Chehab <mchehab@s-opensource.com>
-M:	Mauro Carvalho Chehab <mchehab@kernel.org>
-L:	linux-media@vger.kernel.org
-W:	https://linuxtv.org
-T:	git git://linuxtv.org/media_tree.git
-S:	Odd fixes
-F:	drivers/media/usb/tm6000/
-F:	Documentation/media/v4l-drivers/tm6000*
-
-TW5864 VIDEO4LINUX DRIVER
-M:	Bluecherry Maintainers <maintainers@bluecherrydvr.com>
-M:	Anton Sviridenko <anton@corp.bluecherry.net>
-M:	Andrey Utkin <andrey.utkin@corp.bluecherry.net>
-M:	Andrey Utkin <andrey_utkin@fastmail.com>
-L:	linux-media@vger.kernel.org
-S:	Supported
-F:	drivers/media/pci/tw5864/
-
-TW68 VIDEO4LINUX DRIVER
-M:	Hans Verkuil <hverkuil@xs4all.nl>
-L:	linux-media@vger.kernel.org
-T:	git git://linuxtv.org/media_tree.git
-W:	https://linuxtv.org
-S:	Odd Fixes
-F:	drivers/media/pci/tw68/
-
-TW686X VIDEO4LINUX DRIVER
-M:	Ezequiel Garcia <ezequiel@vanguardiasur.com.ar>
-L:	linux-media@vger.kernel.org
-T:	git git://linuxtv.org/media_tree.git
-W:	http://linuxtv.org
+TOSHIBA WMI HOTKEYS DRIVER
+M:	Azael Avalos <coproscefalo@gmail.com>
+L:	platform-driver-x86@vger.kernel.org
 S:	Maintained
-F:	drivers/media/pci/tw686x/
+F:	drivers/platform/x86/toshiba-wmi.c
 
 TPM DEVICE DRIVER
 M:	Peter Huewe <peterhuewe@gmx.de>
@@ -13367,6 +13392,31 @@ S:	Maintained
 F:	drivers/tc/
 F:	include/linux/tc.h
 
+TW5864 VIDEO4LINUX DRIVER
+M:	Bluecherry Maintainers <maintainers@bluecherrydvr.com>
+M:	Anton Sviridenko <anton@corp.bluecherry.net>
+M:	Andrey Utkin <andrey.utkin@corp.bluecherry.net>
+M:	Andrey Utkin <andrey_utkin@fastmail.com>
+L:	linux-media@vger.kernel.org
+S:	Supported
+F:	drivers/media/pci/tw5864/
+
+TW68 VIDEO4LINUX DRIVER
+M:	Hans Verkuil <hverkuil@xs4all.nl>
+L:	linux-media@vger.kernel.org
+T:	git git://linuxtv.org/media_tree.git
+W:	https://linuxtv.org
+S:	Odd Fixes
+F:	drivers/media/pci/tw68/
+
+TW686X VIDEO4LINUX DRIVER
+M:	Ezequiel Garcia <ezequiel@vanguardiasur.com.ar>
+L:	linux-media@vger.kernel.org
+T:	git git://linuxtv.org/media_tree.git
+W:	http://linuxtv.org
+S:	Maintained
+F:	drivers/media/pci/tw686x/
+
 UBI FILE SYSTEM (UBIFS)
 M:	Richard Weinberger <richard@nod.at>
 M:	Artem Bityutskiy <dedekind1@gmail.com>
@@ -13416,6 +13466,13 @@ S:	Maintained
 F:	drivers/hid/uhid.c
 F:	include/uapi/linux/uhid.h
 
+ULPI BUS
+M:	Heikki Krogerus <heikki.krogerus@linux.intel.com>
+L:	linux-usb@vger.kernel.org
+S:	Maintained
+F:	drivers/usb/common/ulpi.c
+F:	include/linux/ulpi/
+
 ULTRA-WIDEBAND (UWB) SUBSYSTEM:
 L:	linux-usb@vger.kernel.org
 S:	Orphan
@@ -13476,6 +13533,14 @@ F:	drivers/mtd/ubi/
 F:	include/linux/mtd/ubi.h
 F:	include/uapi/mtd/ubi-user.h
 
+USB "USBNET" DRIVER FRAMEWORK
+M:	Oliver Neukum <oneukum@suse.com>
+L:	netdev@vger.kernel.org
+W:	http://www.linux-usb.org/usbnet
+S:	Maintained
+F:	drivers/net/usb/usbnet.c
+F:	include/linux/usb/usbnet.h
+
 USB ACM DRIVER
 M:	Oliver Neukum <oneukum@suse.com>
 L:	linux-usb@vger.kernel.org
@@ -13699,14 +13764,6 @@ L:	linux-usb@vger.kernel.org
 S:	Maintained
 F:	drivers/usb/host/uhci*
 
-USB "USBNET" DRIVER FRAMEWORK
-M:	Oliver Neukum <oneukum@suse.com>
-L:	netdev@vger.kernel.org
-W:	http://www.linux-usb.org/usbnet
-S:	Maintained
-F:	drivers/net/usb/usbnet.c
-F:	include/linux/usb/usbnet.h
-
 USB VIDEO CLASS
 M:	Laurent Pinchart <laurent.pinchart@ideasonboard.com>
 L:	linux-uvc-devel@lists.sourceforge.net (subscribers-only)
@@ -13761,13 +13818,6 @@ S:	Maintained
 F:	Documentation/media/v4l-drivers/zr364xx*
 F:	drivers/media/usb/zr364xx/
 
-ULPI BUS
-M:	Heikki Krogerus <heikki.krogerus@linux.intel.com>
-L:	linux-usb@vger.kernel.org
-S:	Maintained
-F:	drivers/usb/common/ulpi.c
-F:	include/linux/ulpi/
-
 USER-MODE LINUX (UML)
 M:	Jeff Dike <jdike@addtoit.com>
 M:	Richard Weinberger <richard@nod.at>
@@ -13861,6 +13911,37 @@ F:	drivers/gpu/vga/vga_switcheroo.c
 F:	include/linux/vga_switcheroo.h
 T:	git git://anongit.freedesktop.org/drm/drm-misc
 
+VIA RHINE NETWORK DRIVER
+S:	Orphan
+F:	drivers/net/ethernet/via/via-rhine.c
+
+VIA SD/MMC CARD CONTROLLER DRIVER
+M:	Bruce Chang <brucechang@via.com.tw>
+M:	Harald Welte <HaraldWelte@viatech.com>
+S:	Maintained
+F:	drivers/mmc/host/via-sdmmc.c
+
+VIA UNICHROME(PRO)/CHROME9 FRAMEBUFFER DRIVER
+M:	Florian Tobias Schandinat <FlorianSchandinat@gmx.de>
+L:	linux-fbdev@vger.kernel.org
+S:	Maintained
+F:	include/linux/via-core.h
+F:	include/linux/via-gpio.h
+F:	include/linux/via_i2c.h
+F:	drivers/video/fbdev/via/
+
+VIA VELOCITY NETWORK DRIVER
+M:	Francois Romieu <romieu@fr.zoreil.com>
+L:	netdev@vger.kernel.org
+S:	Maintained
+F:	drivers/net/ethernet/via/via-velocity.*
+
+VIDEO MULTIPLEXER DRIVER
+M:	Philipp Zabel <p.zabel@pengutronix.de>
+L:	linux-media@vger.kernel.org
+S:	Maintained
+F:	drivers/media/platform/video-mux.c
+
 VIDEOBUF2 FRAMEWORK
 M:	Pawel Osciak <pawel@osciak.com>
 M:	Marek Szyprowski <m.szyprowski@samsung.com>
@@ -13870,11 +13951,20 @@ S:	Maintained
 F:	drivers/media/v4l2-core/videobuf2-*
 F:	include/media/videobuf2-*
 
-VIDEO MULTIPLEXER DRIVER
-M:	Philipp Zabel <p.zabel@pengutronix.de>
+VIMC VIRTUAL MEDIA CONTROLLER DRIVER
+M:	Helen Koike <helen.koike@collabora.com>
 L:	linux-media@vger.kernel.org
+T:	git git://linuxtv.org/media_tree.git
+W:	https://linuxtv.org
 S:	Maintained
-F:	drivers/media/platform/video-mux.c
+F:	drivers/media/platform/vimc/*
+
+VIRT LIB
+M:	Alex Williamson <alex.williamson@redhat.com>
+M:	Paolo Bonzini <pbonzini@redhat.com>
+L:	kvm@vger.kernel.org
+S:	Supported
+F:	virt/lib/
 
 VIRTIO AND VHOST VSOCK DRIVER
 M:	Stefan Hajnoczi <stefanha@redhat.com>
@@ -13892,12 +13982,6 @@ F:	drivers/net/vsockmon.c
 F:	drivers/vhost/vsock.c
 F:	drivers/vhost/vsock.h
 
-VIRTUAL SERIO DEVICE DRIVER
-M:	Stephen Chandler Paul <thatslyude@gmail.com>
-S:	Maintained
-F:	drivers/input/serio/userio.c
-F:	include/uapi/linux/userio.h
-
 VIRTIO CONSOLE DRIVER
 M:	Amit Shah <amit@kernel.org>
 L:	virtualization@lists.linux-foundation.org
@@ -13919,6 +14003,15 @@ F:	drivers/block/virtio_blk.c
 F:	include/linux/virtio*.h
 F:	include/uapi/linux/virtio_*.h
 F:	drivers/crypto/virtio/
+F:	mm/balloon_compaction.c
+
+VIRTIO CRYPTO DRIVER
+M:	Gonglei <arei.gonglei@huawei.com>
+L:	virtualization@lists.linux-foundation.org
+L:	linux-crypto@vger.kernel.org
+S:	Maintained
+F:	drivers/crypto/virtio/
+F:	include/uapi/linux/virtio_crypto.h
 
 VIRTIO DRIVERS FOR S390
 M:	Cornelia Huck <cohuck@redhat.com>
@@ -13956,45 +14049,11 @@ S:	Maintained
 F:	drivers/virtio/virtio_input.c
 F:	include/uapi/linux/virtio_input.h
 
-VIRTIO CRYPTO DRIVER
-M:  Gonglei <arei.gonglei@huawei.com>
-L:  virtualization@lists.linux-foundation.org
-L:  linux-crypto@vger.kernel.org
-S:  Maintained
-F:  drivers/crypto/virtio/
-F:  include/uapi/linux/virtio_crypto.h
-
-VIA RHINE NETWORK DRIVER
-S:	Orphan
-F:	drivers/net/ethernet/via/via-rhine.c
-
-VIA SD/MMC CARD CONTROLLER DRIVER
-M:	Bruce Chang <brucechang@via.com.tw>
-M:	Harald Welte <HaraldWelte@viatech.com>
-S:	Maintained
-F:	drivers/mmc/host/via-sdmmc.c
-
-VIA UNICHROME(PRO)/CHROME9 FRAMEBUFFER DRIVER
-M:	Florian Tobias Schandinat <FlorianSchandinat@gmx.de>
-L:	linux-fbdev@vger.kernel.org
-S:	Maintained
-F:	include/linux/via-core.h
-F:	include/linux/via-gpio.h
-F:	include/linux/via_i2c.h
-F:	drivers/video/fbdev/via/
-
-VIA VELOCITY NETWORK DRIVER
-M:	Francois Romieu <romieu@fr.zoreil.com>
-L:	netdev@vger.kernel.org
+VIRTUAL SERIO DEVICE DRIVER
+M:	Stephen Chandler Paul <thatslyude@gmail.com>
 S:	Maintained
-F:	drivers/net/ethernet/via/via-velocity.*
-
-VIRT LIB
-M:	Alex Williamson <alex.williamson@redhat.com>
-M:	Paolo Bonzini <pbonzini@redhat.com>
-L:	kvm@vger.kernel.org
-S:	Supported
-F:	virt/lib/
+F:	drivers/input/serio/userio.c
+F:	include/uapi/linux/userio.h
 
 VIVID VIRTUAL VIDEO DRIVER
 M:	Hans Verkuil <hverkuil@xs4all.nl>
@@ -14004,14 +14063,6 @@ W:	https://linuxtv.org
 S:	Maintained
 F:	drivers/media/platform/vivid/*
 
-VIMC VIRTUAL MEDIA CONTROLLER DRIVER
-M:	Helen Koike <helen.koike@collabora.com>
-L:	linux-media@vger.kernel.org
-T:	git git://linuxtv.org/media_tree.git
-W:	https://linuxtv.org
-S:	Maintained
-F:	drivers/media/platform/vimc/*
-
 VLYNQ BUS
 M:	Florian Fainelli <f.fainelli@gmail.com>
 L:	openwrt-devel@lists.openwrt.org (subscribers-only)
@@ -14031,12 +14082,6 @@ F:	drivers/staging/vme/
 F:	drivers/vme/
 F:	include/linux/vme*
 
-VMWARE HYPERVISOR INTERFACE
-M:	Alok Kataria <akataria@vmware.com>
-L:	virtualization@lists.linux-foundation.org
-S:	Supported
-F:	arch/x86/kernel/cpu/vmware.c
-
 VMWARE BALLOON DRIVER
 M:	Xavier Deguillard <xdeguillard@vmware.com>
 M:	Philip Moltmann <moltmann@vmware.com>
@@ -14045,6 +14090,27 @@ L:	linux-kernel@vger.kernel.org
 S:	Maintained
 F:	drivers/misc/vmw_balloon.c
 
+VMWARE HYPERVISOR INTERFACE
+M:	Alok Kataria <akataria@vmware.com>
+L:	virtualization@lists.linux-foundation.org
+S:	Supported
+F:	arch/x86/kernel/cpu/vmware.c
+
+VMWARE PVRDMA DRIVER
+M:	Adit Ranadive <aditr@vmware.com>
+M:	VMware PV-Drivers <pv-drivers@vmware.com>
+L:	linux-rdma@vger.kernel.org
+S:	Maintained
+F:	drivers/infiniband/hw/vmw_pvrdma/
+
+VMware PVSCSI driver
+M:	Jim Gill <jgill@vmware.com>
+M:	VMware PV-Drivers <pv-drivers@vmware.com>
+L:	linux-scsi@vger.kernel.org
+S:	Maintained
+F:	drivers/scsi/vmw_pvscsi.c
+F:	drivers/scsi/vmw_pvscsi.h
+
 VMWARE VMMOUSE SUBDRIVER
 M:	"VMware Graphics" <linux-graphics-maintainer@vmware.com>
 M:	"VMware, Inc." <pv-drivers@vmware.com>
@@ -14060,21 +14126,6 @@ L:	netdev@vger.kernel.org
 S:	Maintained
 F:	drivers/net/vmxnet3/
 
-VMware PVSCSI driver
-M:	Jim Gill <jgill@vmware.com>
-M:	VMware PV-Drivers <pv-drivers@vmware.com>
-L:	linux-scsi@vger.kernel.org
-S:	Maintained
-F:	drivers/scsi/vmw_pvscsi.c
-F:	drivers/scsi/vmw_pvscsi.h
-
-VMWARE PVRDMA DRIVER
-M:	Adit Ranadive <aditr@vmware.com>
-M:	VMware PV-Drivers <pv-drivers@vmware.com>
-L:	linux-rdma@vger.kernel.org
-S:	Maintained
-F:	drivers/infiniband/hw/vmw_pvrdma/
-
 VOLTAGE AND CURRENT REGULATOR FRAMEWORK
 M:	Liam Girdwood <lgirdwood@gmail.com>
 M:	Mark Brown <broonie@kernel.org>
@@ -14167,12 +14218,39 @@ F:	drivers/watchdog/
 F:	include/linux/watchdog.h
 F:	include/uapi/linux/watchdog.h
 
+WHISKEYCOVE PMIC GPIO DRIVER
+M:	Kuppuswamy Sathyanarayanan <sathyanarayanan.kuppuswamy@linux.intel.com>
+L:	linux-gpio@vger.kernel.org
+S:	Maintained
+F:	drivers/gpio/gpio-wcove.c
+
 WIIMOTE HID DRIVER
 M:	David Herrmann <dh.herrmann@googlemail.com>
 L:	linux-input@vger.kernel.org
 S:	Maintained
 F:	drivers/hid/hid-wiimote*
 
+WILOCITY WIL6210 WIRELESS DRIVER
+M:	Maya Erez <qca_merez@qca.qualcomm.com>
+L:	linux-wireless@vger.kernel.org
+L:	wil6210@qca.qualcomm.com
+S:	Supported
+W:	http://wireless.kernel.org/en/users/Drivers/wil6210
+F:	drivers/net/wireless/ath/wil6210/
+F:	include/uapi/linux/wil6210_uapi.h
+
+WIMAX STACK
+M:	Inaky Perez-Gonzalez <inaky.perez-gonzalez@intel.com>
+M:	linux-wimax@intel.com
+L:	wimax@linuxwimax.org (subscribers-only)
+S:	Supported
+W:	http://linuxwimax.org
+F:	Documentation/wimax/README.wimax
+F:	include/linux/wimax/debug.h
+F:	include/net/wimax.h
+F:	include/uapi/linux/wimax.h
+F:	net/wimax/
+
 WINBOND CIR DRIVER
 M:	David Härdeman <david@hardeman.nu>
 S:	Maintained
@@ -14190,18 +14268,6 @@ L:	linux-gpio@vger.kernel.org
 S:	Maintained
 F:	drivers/gpio/gpio-ws16c48.c
 
-WIMAX STACK
-M:	Inaky Perez-Gonzalez <inaky.perez-gonzalez@intel.com>
-M:	linux-wimax@intel.com
-L:	wimax@linuxwimax.org (subscribers-only)
-S:	Supported
-W:	http://linuxwimax.org
-F:	Documentation/wimax/README.wimax
-F:	include/linux/wimax/debug.h
-F:	include/net/wimax.h
-F:	include/uapi/linux/wimax.h
-F:	net/wimax/
-
 WISTRON LAPTOP BUTTON DRIVER
 M:	Miloslav Trmac <mitr@volny.cz>
 S:	Maintained
@@ -14286,15 +14352,6 @@ S:	Maintained
 F:	Documentation/x86/
 F:	arch/x86/
 
-X86 PLATFORM DRIVERS
-M:	Darren Hart <dvhart@infradead.org>
-M:	Andy Shevchenko <andy@infradead.org>
-L:	platform-driver-x86@vger.kernel.org
-T:	git git://git.infradead.org/users/dvhart/linux-platform-drivers-x86.git
-S:	Maintained
-F:	drivers/platform/x86/
-F:	drivers/platform/olpc/
-
 X86 MCE INFRASTRUCTURE
 M:	Tony Luck <tony.luck@intel.com>
 M:	Borislav Petkov <bp@alien8.de>
@@ -14307,6 +14364,15 @@ M:	Borislav Petkov <bp@alien8.de>
 S:	Maintained
 F:	arch/x86/kernel/cpu/microcode/*
 
+X86 PLATFORM DRIVERS
+M:	Darren Hart <dvhart@infradead.org>
+M:	Andy Shevchenko <andy@infradead.org>
+L:	platform-driver-x86@vger.kernel.org
+T:	git git://git.infradead.org/users/dvhart/linux-platform-drivers-x86.git
+S:	Maintained
+F:	drivers/platform/x86/
+F:	drivers/platform/olpc/
+
 X86 VDSO
 M:	Andy Lutomirski <luto@amacapital.net>
 L:	linux-kernel@vger.kernel.org
@@ -14323,20 +14389,13 @@ T:	git git://linuxtv.org/media_tree.git
 S:	Maintained
 F:	drivers/media/tuners/tuner-xc2028.*
 
-XEN HYPERVISOR INTERFACE
-M:	Boris Ostrovsky <boris.ostrovsky@oracle.com>
-M:	Juergen Gross <jgross@suse.com>
+XEN BLOCK SUBSYSTEM
+M:	Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
+M:	Roger Pau Monné <roger.pau@citrix.com>
 L:	xen-devel@lists.xenproject.org (moderated for non-subscribers)
-T:	git git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip.git
 S:	Supported
-F:	arch/x86/xen/
-F:	drivers/*/xen-*front.c
-F:	drivers/xen/
-F:	arch/x86/include/asm/xen/
-F:	include/xen/
-F:	include/uapi/xen/
-F:	Documentation/ABI/stable/sysfs-hypervisor-xen
-F:	Documentation/ABI/testing/sysfs-hypervisor-xen
+F:	drivers/block/xen-blkback/*
+F:	drivers/block/xen*
 
 XEN HYPERVISOR ARM
 M:	Stefano Stabellini <sstabellini@kernel.org>
@@ -14352,6 +14411,21 @@ S:	Maintained
 F:	arch/arm64/xen/
 F:	arch/arm64/include/asm/xen/
 
+XEN HYPERVISOR INTERFACE
+M:	Boris Ostrovsky <boris.ostrovsky@oracle.com>
+M:	Juergen Gross <jgross@suse.com>
+L:	xen-devel@lists.xenproject.org (moderated for non-subscribers)
+T:	git git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip.git
+S:	Supported
+F:	arch/x86/xen/
+F:	drivers/*/xen-*front.c
+F:	drivers/xen/
+F:	arch/x86/include/asm/xen/
+F:	include/xen/
+F:	include/uapi/xen/
+F:	Documentation/ABI/stable/sysfs-hypervisor-xen
+F:	Documentation/ABI/testing/sysfs-hypervisor-xen
+
 XEN NETWORK BACKEND DRIVER
 M:	Wei Liu <wei.liu2@citrix.com>
 M:	Paul Durrant <paul.durrant@citrix.com>
@@ -14367,14 +14441,6 @@ S:	Supported
 F:	arch/x86/pci/*xen*
 F:	drivers/pci/*xen*
 
-XEN BLOCK SUBSYSTEM
-M:	Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
-M:	Roger Pau Monné <roger.pau@citrix.com>
-L:	xen-devel@lists.xenproject.org (moderated for non-subscribers)
-S:	Supported
-F:	drivers/block/xen-blkback/*
-F:	drivers/block/xen*
-
 XEN PVSCSI DRIVERS
 M:	Juergen Gross <jgross@suse.com>
 L:	xen-devel@lists.xenproject.org (moderated for non-subscribers)
@@ -14451,6 +14517,13 @@ S:	Maintained
 F:	drivers/net/hamradio/yam*
 F:	include/linux/yam.h
 
+YAMA SECURITY MODULE
+M:	Kees Cook <keescook@chromium.org>
+T:	git git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux.git yama/tip
+S:	Supported
+F:	security/yama/
+F:	Documentation/admin-guide/LSM/Yama.rst
+
 YEALINK PHONE DRIVER
 M:	Henk Vergonet <Henk.Vergonet@gmail.com>
 L:	usbb2k-api-dev@nongnu.org
@@ -14485,23 +14558,23 @@ L:	zd1211-devs@lists.sourceforge.net (subscribers-only)
 S:	Maintained
 F:	drivers/net/wireless/zydas/zd1211rw/
 
-ZD1301_DEMOD MEDIA DRIVER
+ZD1301 MEDIA DRIVER
 M:	Antti Palosaari <crope@iki.fi>
 L:	linux-media@vger.kernel.org
 W:	https://linuxtv.org/
 W:	http://palosaari.fi/linux/
 Q:	https://patchwork.linuxtv.org/project/linux-media/list/
 S:	Maintained
-F:	drivers/media/dvb-frontends/zd1301_demod*
+F:	drivers/media/usb/dvb-usb-v2/zd1301*
 
-ZD1301 MEDIA DRIVER
+ZD1301_DEMOD MEDIA DRIVER
 M:	Antti Palosaari <crope@iki.fi>
 L:	linux-media@vger.kernel.org
 W:	https://linuxtv.org/
 W:	http://palosaari.fi/linux/
 Q:	https://patchwork.linuxtv.org/project/linux-media/list/
 S:	Maintained
-F:	drivers/media/usb/dvb-usb-v2/zd1301*
+F:	drivers/media/dvb-frontends/zd1301_demod*
 
 ZPOOL COMPRESSED PAGE STORAGE API
 M:	Dan Streetman <ddstreet@ieee.org>
diff --git a/Makefile b/Makefile
index 06ef9947cf7c..235826f95741 100644
--- a/Makefile
+++ b/Makefile
@@ -1,7 +1,7 @@
 VERSION = 4
-PATCHLEVEL = 12
+PATCHLEVEL = 13
 SUBLEVEL = 0
-EXTRAVERSION =
+EXTRAVERSION = -rc6
 NAME = Fearless Coyote
 
 # *DOCUMENTATION*
@@ -294,10 +294,17 @@ CONFIG_SHELL := $(shell if [ -x "$$BASH" ]; then echo $$BASH; \
 	  else if [ -x /bin/bash ]; then echo /bin/bash; \
 	  else echo sh; fi ; fi)
 
+HOST_LFS_CFLAGS := $(shell getconf LFS_CFLAGS)
+HOST_LFS_LDFLAGS := $(shell getconf LFS_LDFLAGS)
+HOST_LFS_LIBS := $(shell getconf LFS_LIBS)
+
 HOSTCC       = gcc
 HOSTCXX      = g++
-HOSTCFLAGS   := -Wall -Wmissing-prototypes -Wstrict-prototypes -O2 -fomit-frame-pointer -std=gnu89
-HOSTCXXFLAGS = -O2
+HOSTCFLAGS   := -Wall -Wmissing-prototypes -Wstrict-prototypes -O2 \
+		-fomit-frame-pointer -std=gnu89 $(HOST_LFS_CFLAGS)
+HOSTCXXFLAGS := -O2 $(HOST_LFS_CFLAGS)
+HOSTLDFLAGS  := $(HOST_LFS_LDFLAGS)
+HOST_LOADLIBES := $(HOST_LFS_LIBS)
 
 ifeq ($(shell $(HOSTCC) -v 2>&1 | grep -c "clang version"), 1)
 HOSTCFLAGS  += -Wno-unused-value -Wno-unused-parameter \
@@ -408,7 +415,7 @@ KERNELVERSION = $(VERSION)$(if $(PATCHLEVEL),.$(PATCHLEVEL)$(if $(SUBLEVEL),.$(S
 
 export VERSION PATCHLEVEL SUBLEVEL KERNELRELEASE KERNELVERSION
 export ARCH SRCARCH CONFIG_SHELL HOSTCC HOSTCFLAGS CROSS_COMPILE AS LD CC
-export CPP AR NM STRIP OBJCOPY OBJDUMP
+export CPP AR NM STRIP OBJCOPY OBJDUMP HOSTLDFLAGS HOST_LOADLIBES
 export MAKE AWK GENKSYMS INSTALLKERNEL PERL PYTHON UTS_MACHINE
 export HOSTCXX HOSTCXXFLAGS LDFLAGS_MODULE CHECK CHECKFLAGS
 
@@ -456,10 +463,11 @@ ifneq ($(KBUILD_SRC),)
 endif
 
 # Support for using generic headers in asm-generic
-PHONY += asm-generic
-asm-generic:
+PHONY += asm-generic uapi-asm-generic
+asm-generic: uapi-asm-generic
 	$(Q)$(MAKE) -f $(srctree)/scripts/Makefile.asm-generic \
 	            src=asm obj=arch/$(SRCARCH)/include/generated/asm
+uapi-asm-generic:
 	$(Q)$(MAKE) -f $(srctree)/scripts/Makefile.asm-generic \
 	            src=uapi/asm obj=arch/$(SRCARCH)/include/generated/uapi/asm
 
@@ -622,6 +630,9 @@ include arch/$(SRCARCH)/Makefile
 
 KBUILD_CFLAGS	+= $(call cc-option,-fno-delete-null-pointer-checks,)
 KBUILD_CFLAGS	+= $(call cc-disable-warning,frame-address,)
+KBUILD_CFLAGS	+= $(call cc-disable-warning, format-truncation)
+KBUILD_CFLAGS	+= $(call cc-disable-warning, format-overflow)
+KBUILD_CFLAGS	+= $(call cc-disable-warning, int-in-bool-context)
 
 ifdef CONFIG_CC_OPTIMIZE_FOR_SIZE
 KBUILD_CFLAGS	+= $(call cc-option,-Oz,-Os)
@@ -1133,7 +1144,7 @@ firmware_install:
 #Default location for installed headers
 export INSTALL_HDR_PATH = $(objtree)/usr
 
-# If we do an all arch process set dst to asm-$(hdr-arch)
+# If we do an all arch process set dst to include/arch-$(hdr-arch)
 hdr-dst = $(if $(KBUILD_HEADERS), dst=include/arch-$(hdr-arch), dst=include)
 
 PHONY += archheaders
@@ -1143,7 +1154,7 @@ PHONY += archscripts
 archscripts:
 
 PHONY += __headers
-__headers: $(version_h) scripts_basic asm-generic archheaders archscripts
+__headers: $(version_h) scripts_basic uapi-asm-generic archheaders archscripts
 	$(Q)$(MAKE) $(build)=scripts build_unifdef
 
 PHONY += headers_install_all
@@ -1154,7 +1165,7 @@ PHONY += headers_install
 headers_install: __headers
 	$(if $(wildcard $(srctree)/arch/$(hdr-arch)/include/uapi/asm/Kbuild),, \
 	  $(error Headers not exportable for the $(SRCARCH) architecture))
-	$(Q)$(MAKE) $(hdr-inst)=include/uapi
+	$(Q)$(MAKE) $(hdr-inst)=include/uapi dst=include
 	$(Q)$(MAKE) $(hdr-inst)=arch/$(hdr-arch)/include/uapi $(hdr-dst)
 
 PHONY += headers_check_all
@@ -1163,7 +1174,7 @@ headers_check_all: headers_install_all
 
 PHONY += headers_check
 headers_check: headers_install
-	$(Q)$(MAKE) $(hdr-inst)=include/uapi HDRCHECK=1
+	$(Q)$(MAKE) $(hdr-inst)=include/uapi dst=include HDRCHECK=1
 	$(Q)$(MAKE) $(hdr-inst)=arch/$(hdr-arch)/include/uapi $(hdr-dst) HDRCHECK=1
 
 # ---------------------------------------------------------------------------
diff --git a/arch/Kconfig b/arch/Kconfig
index cae0958a2298..21d0089117fe 100644
--- a/arch/Kconfig
+++ b/arch/Kconfig
@@ -198,9 +198,6 @@ config HAVE_KPROBES_ON_FTRACE
 config HAVE_NMI
 	bool
 
-config HAVE_NMI_WATCHDOG
-	depends on HAVE_NMI
-	bool
 #
 # An arch should select this if it provides all these things:
 #
@@ -226,6 +223,12 @@ config GENERIC_SMP_IDLE_THREAD
 config GENERIC_IDLE_POLL_SETUP
        bool
 
+config ARCH_HAS_FORTIFY_SOURCE
+	bool
+	help
+	  An architecture should select this when it can successfully
+	  build and run with CONFIG_FORTIFY_SOURCE.
+
 # Select if arch has all set_memory_ro/rw/x/nx() functions in asm/cacheflush.h
 config ARCH_HAS_SET_MEMORY
 	bool
@@ -288,6 +291,28 @@ config HAVE_PERF_EVENTS_NMI
 	  subsystem.  Also has support for calculating CPU cycle events
 	  to determine how many clock cycles in a given period.
 
+config HAVE_HARDLOCKUP_DETECTOR_PERF
+	bool
+	depends on HAVE_PERF_EVENTS_NMI
+	help
+	  The arch chooses to use the generic perf-NMI-based hardlockup
+	  detector. Must define HAVE_PERF_EVENTS_NMI.
+
+config HAVE_NMI_WATCHDOG
+	depends on HAVE_NMI
+	bool
+	help
+	  The arch provides a low level NMI watchdog. It provides
+	  asm/nmi.h, and defines its own arch_touch_nmi_watchdog().
+
+config HAVE_HARDLOCKUP_DETECTOR_ARCH
+	bool
+	select HAVE_NMI_WATCHDOG
+	help
+	  The arch chooses to provide its own hardlockup detector, which is
+	  a superset of the HAVE_NMI_WATCHDOG. It also conforms to config
+	  interfaces and parameters provided by hardlockup detector subsystem.
+
 config HAVE_PERF_REGS
 	bool
 	help
diff --git a/arch/alpha/include/uapi/asm/ioctls.h b/arch/alpha/include/uapi/asm/ioctls.h
index ff67b8373bf7..1cd7dc7d4870 100644
--- a/arch/alpha/include/uapi/asm/ioctls.h
+++ b/arch/alpha/include/uapi/asm/ioctls.h
@@ -100,7 +100,7 @@
 #define TIOCGPKT	_IOR('T', 0x38, int) /* Get packet mode state */
 #define TIOCGPTLCK	_IOR('T', 0x39, int) /* Get Pty lock state */
 #define TIOCGEXCL	_IOR('T', 0x40, int) /* Get exclusive mode state */
-#define TIOCGPTPEER	_IOR('T', 0x41, int) /* Safely open the slave */
+#define TIOCGPTPEER	_IO('T', 0x41) /* Safely open the slave */
 
 #define TIOCSERCONFIG	0x5453
 #define TIOCSERGWILD	0x5454
diff --git a/arch/arc/Kconfig b/arch/arc/Kconfig
index a5459698f0ee..7db85ab00c52 100644
--- a/arch/arc/Kconfig
+++ b/arch/arc/Kconfig
@@ -96,7 +96,6 @@ menu "ARC Architecture Configuration"
 
 menu "ARC Platform/SoC/Board"
 
-source "arch/arc/plat-sim/Kconfig"
 source "arch/arc/plat-tb10x/Kconfig"
 source "arch/arc/plat-axs10x/Kconfig"
 #New platform adds here
diff --git a/arch/arc/Makefile b/arch/arc/Makefile
index 44ef35d33956..3a61cfcc38c0 100644
--- a/arch/arc/Makefile
+++ b/arch/arc/Makefile
@@ -107,7 +107,7 @@ core-y		+= arch/arc/
 # w/o this dtb won't embed into kernel binary
 core-y		+= arch/arc/boot/dts/
 
-core-$(CONFIG_ARC_PLAT_SIM)	+= arch/arc/plat-sim/
+core-y				+= arch/arc/plat-sim/
 core-$(CONFIG_ARC_PLAT_TB10X)	+= arch/arc/plat-tb10x/
 core-$(CONFIG_ARC_PLAT_AXS10X)	+= arch/arc/plat-axs10x/
 core-$(CONFIG_ARC_PLAT_EZNPS)	+= arch/arc/plat-eznps/
diff --git a/arch/arc/boot/dts/axc001.dtsi b/arch/arc/boot/dts/axc001.dtsi
index 53ce226f77a5..a380ffa1a458 100644
--- a/arch/arc/boot/dts/axc001.dtsi
+++ b/arch/arc/boot/dts/axc001.dtsi
@@ -15,15 +15,15 @@
 
 / {
 	compatible = "snps,arc";
-	#address-cells = <1>;
-	#size-cells = <1>;
+	#address-cells = <2>;
+	#size-cells = <2>;
 
 	cpu_card {
 		compatible = "simple-bus";
 		#address-cells = <1>;
 		#size-cells = <1>;
 
-		ranges = <0x00000000 0xf0000000 0x10000000>;
+		ranges = <0x00000000 0x0 0xf0000000 0x10000000>;
 
 		core_clk: core_clk {
 			#clock-cells = <0>;
@@ -91,23 +91,21 @@
 	mb_intc: dw-apb-ictl@0xe0012000 {
 		#interrupt-cells = <1>;
 		compatible = "snps,dw-apb-ictl";
-		reg = < 0xe0012000 0x200 >;
+		reg = < 0x0 0xe0012000 0x0 0x200 >;
 		interrupt-controller;
 		interrupt-parent = <&core_intc>;
 		interrupts = < 7 >;
 	};
 
 	memory {
-		#address-cells = <1>;
-		#size-cells = <1>;
-		ranges = <0x00000000 0x80000000 0x20000000>;
 		device_type = "memory";
-		reg = <0x80000000 0x1b000000>;	/* (512 - 32) MiB */
+		/* CONFIG_KERNEL_RAM_BASE_ADDRESS needs to match low mem start */
+		reg = <0x0 0x80000000 0x0 0x1b000000>;	/* (512 - 32) MiB */
 	};
 
 	reserved-memory {
-		#address-cells = <1>;
-		#size-cells = <1>;
+		#address-cells = <2>;
+		#size-cells = <2>;
 		ranges;
 		/*
 		 * We just move frame buffer area to the very end of
@@ -118,7 +116,7 @@
 		 */
 		frame_buffer: frame_buffer@9e000000 {
 			compatible = "shared-dma-pool";
-			reg = <0x9e000000 0x2000000>;
+			reg = <0x0 0x9e000000 0x0 0x2000000>;
 			no-map;
 		};
 	};
diff --git a/arch/arc/boot/dts/axc003.dtsi b/arch/arc/boot/dts/axc003.dtsi
index 14df46f141bf..cc9239ef8d08 100644
--- a/arch/arc/boot/dts/axc003.dtsi
+++ b/arch/arc/boot/dts/axc003.dtsi
@@ -14,15 +14,15 @@
 
 / {
 	compatible = "snps,arc";
-	#address-cells = <1>;
-	#size-cells = <1>;
+	#address-cells = <2>;
+	#size-cells = <2>;
 
 	cpu_card {
 		compatible = "simple-bus";
 		#address-cells = <1>;
 		#size-cells = <1>;
 
-		ranges = <0x00000000 0xf0000000 0x10000000>;
+		ranges = <0x00000000 0x0 0xf0000000 0x10000000>;
 
 		core_clk: core_clk {
 			#clock-cells = <0>;
@@ -94,30 +94,29 @@
 	mb_intc: dw-apb-ictl@0xe0012000 {
 		#interrupt-cells = <1>;
 		compatible = "snps,dw-apb-ictl";
-		reg = < 0xe0012000 0x200 >;
+		reg = < 0x0 0xe0012000 0x0 0x200 >;
 		interrupt-controller;
 		interrupt-parent = <&core_intc>;
 		interrupts = < 24 >;
 	};
 
 	memory {
-		#address-cells = <1>;
-		#size-cells = <1>;
-		ranges = <0x00000000 0x80000000 0x40000000>;
 		device_type = "memory";
-		reg = <0x80000000 0x20000000>;	/* 512MiB */
+		/* CONFIG_KERNEL_RAM_BASE_ADDRESS needs to match low mem start */
+		reg = <0x0 0x80000000 0x0 0x20000000	/* 512 MiB low mem */
+		       0x1 0xc0000000 0x0 0x40000000>;	/* 1 GiB highmem */
 	};
 
 	reserved-memory {
-		#address-cells = <1>;
-		#size-cells = <1>;
+		#address-cells = <2>;
+		#size-cells = <2>;
 		ranges;
 		/*
 		 * Move frame buffer out of IOC aperture (0x8z-0xAz).
 		 */
 		frame_buffer: frame_buffer@be000000 {
 			compatible = "shared-dma-pool";
-			reg = <0xbe000000 0x2000000>;
+			reg = <0x0 0xbe000000 0x0 0x2000000>;
 			no-map;
 		};
 	};
diff --git a/arch/arc/boot/dts/axc003_idu.dtsi b/arch/arc/boot/dts/axc003_idu.dtsi
index 695f9fa1996b..4ebb2170abec 100644
--- a/arch/arc/boot/dts/axc003_idu.dtsi
+++ b/arch/arc/boot/dts/axc003_idu.dtsi
@@ -14,15 +14,15 @@
 
 / {
 	compatible = "snps,arc";
-	#address-cells = <1>;
-	#size-cells = <1>;
+	#address-cells = <2>;
+	#size-cells = <2>;
 
 	cpu_card {
 		compatible = "simple-bus";
 		#address-cells = <1>;
 		#size-cells = <1>;
 
-		ranges = <0x00000000 0xf0000000 0x10000000>;
+		ranges = <0x00000000 0x0 0xf0000000 0x10000000>;
 
 		core_clk: core_clk {
 			#clock-cells = <0>;
@@ -100,30 +100,29 @@
 	mb_intc: dw-apb-ictl@0xe0012000 {
 		#interrupt-cells = <1>;
 		compatible = "snps,dw-apb-ictl";
-		reg = < 0xe0012000 0x200 >;
+		reg = < 0x0 0xe0012000 0x0 0x200 >;
 		interrupt-controller;
 		interrupt-parent = <&idu_intc>;
 		interrupts = <0>;
 	};
 
 	memory {
-		#address-cells = <1>;
-		#size-cells = <1>;
-		ranges = <0x00000000 0x80000000 0x40000000>;
 		device_type = "memory";
-		reg = <0x80000000 0x20000000>;	/* 512MiB */
+		/* CONFIG_KERNEL_RAM_BASE_ADDRESS needs to match low mem start */
+		reg = <0x0 0x80000000 0x0 0x20000000	/* 512 MiB low mem */
+		       0x1 0xc0000000 0x0 0x40000000>;	/* 1 GiB highmem */
 	};
 
 	reserved-memory {
-		#address-cells = <1>;
-		#size-cells = <1>;
+		#address-cells = <2>;
+		#size-cells = <2>;
 		ranges;
 		/*
 		 * Move frame buffer out of IOC aperture (0x8z-0xAz).
 		 */
 		frame_buffer: frame_buffer@be000000 {
 			compatible = "shared-dma-pool";
-			reg = <0xbe000000 0x2000000>;
+			reg = <0x0 0xbe000000 0x0 0x2000000>;
 			no-map;
 		};
 	};
diff --git a/arch/arc/boot/dts/axs10x_mb.dtsi b/arch/arc/boot/dts/axs10x_mb.dtsi
index 41cfb29b62c1..0ff7e07edcd4 100644
--- a/arch/arc/boot/dts/axs10x_mb.dtsi
+++ b/arch/arc/boot/dts/axs10x_mb.dtsi
@@ -13,7 +13,7 @@
 		compatible = "simple-bus";
 		#address-cells = <1>;
 		#size-cells = <1>;
-		ranges = <0x00000000 0xe0000000 0x10000000>;
+		ranges = <0x00000000 0x0 0xe0000000 0x10000000>;
 		interrupt-parent = <&mb_intc>;
 
 		i2sclk: i2sclk@100a0 {
diff --git a/arch/arc/configs/haps_hs_defconfig b/arch/arc/configs/haps_hs_defconfig
index 57b3e599322f..db04ea4dd2d9 100644
--- a/arch/arc/configs/haps_hs_defconfig
+++ b/arch/arc/configs/haps_hs_defconfig
@@ -21,7 +21,6 @@ CONFIG_MODULES=y
 # CONFIG_BLK_DEV_BSG is not set
 # CONFIG_IOSCHED_DEADLINE is not set
 # CONFIG_IOSCHED_CFQ is not set
-CONFIG_ARC_PLAT_SIM=y
 CONFIG_ISA_ARCV2=y
 CONFIG_ARC_BUILTIN_DTB_NAME="haps_hs"
 CONFIG_PREEMPT=y
diff --git a/arch/arc/configs/haps_hs_smp_defconfig b/arch/arc/configs/haps_hs_smp_defconfig
index f85985adebb2..821a2e562f3f 100644
--- a/arch/arc/configs/haps_hs_smp_defconfig
+++ b/arch/arc/configs/haps_hs_smp_defconfig
@@ -23,7 +23,6 @@ CONFIG_MODULES=y
 # CONFIG_BLK_DEV_BSG is not set
 # CONFIG_IOSCHED_DEADLINE is not set
 # CONFIG_IOSCHED_CFQ is not set
-CONFIG_ARC_PLAT_SIM=y
 CONFIG_ISA_ARCV2=y
 CONFIG_SMP=y
 CONFIG_ARC_BUILTIN_DTB_NAME="haps_hs_idu"
diff --git a/arch/arc/configs/nps_defconfig b/arch/arc/configs/nps_defconfig
index ede625c76216..7c9c706ae7f6 100644
--- a/arch/arc/configs/nps_defconfig
+++ b/arch/arc/configs/nps_defconfig
@@ -39,7 +39,6 @@ CONFIG_IP_PNP=y
 # CONFIG_INET_XFRM_MODE_TRANSPORT is not set
 # CONFIG_INET_XFRM_MODE_TUNNEL is not set
 # CONFIG_INET_XFRM_MODE_BEET is not set
-# CONFIG_INET_LRO is not set
 # CONFIG_INET_DIAG is not set
 # CONFIG_IPV6 is not set
 # CONFIG_WIRELESS is not set
diff --git a/arch/arc/configs/nsim_700_defconfig b/arch/arc/configs/nsim_700_defconfig
index b0066a749d4c..6dff83a238b8 100644
--- a/arch/arc/configs/nsim_700_defconfig
+++ b/arch/arc/configs/nsim_700_defconfig
@@ -23,7 +23,6 @@ CONFIG_MODULES=y
 # CONFIG_BLK_DEV_BSG is not set
 # CONFIG_IOSCHED_DEADLINE is not set
 # CONFIG_IOSCHED_CFQ is not set
-CONFIG_ARC_PLAT_SIM=y
 CONFIG_ARC_BUILTIN_DTB_NAME="nsim_700"
 CONFIG_PREEMPT=y
 # CONFIG_COMPACTION is not set
diff --git a/arch/arc/configs/nsim_hs_defconfig b/arch/arc/configs/nsim_hs_defconfig
index ebe9ebb92933..31ee51b987e7 100644
--- a/arch/arc/configs/nsim_hs_defconfig
+++ b/arch/arc/configs/nsim_hs_defconfig
@@ -26,7 +26,6 @@ CONFIG_MODULE_FORCE_UNLOAD=y
 # CONFIG_BLK_DEV_BSG is not set
 # CONFIG_IOSCHED_DEADLINE is not set
 # CONFIG_IOSCHED_CFQ is not set
-CONFIG_ARC_PLAT_SIM=y
 CONFIG_ISA_ARCV2=y
 CONFIG_ARC_BUILTIN_DTB_NAME="nsim_hs"
 CONFIG_PREEMPT=y
diff --git a/arch/arc/configs/nsim_hs_smp_defconfig b/arch/arc/configs/nsim_hs_smp_defconfig
index 4bde43278be6..8d3b1f67cae4 100644
--- a/arch/arc/configs/nsim_hs_smp_defconfig
+++ b/arch/arc/configs/nsim_hs_smp_defconfig
@@ -24,7 +24,6 @@ CONFIG_MODULE_FORCE_UNLOAD=y
 # CONFIG_BLK_DEV_BSG is not set
 # CONFIG_IOSCHED_DEADLINE is not set
 # CONFIG_IOSCHED_CFQ is not set
-CONFIG_ARC_PLAT_SIM=y
 CONFIG_ISA_ARCV2=y
 CONFIG_SMP=y
 CONFIG_ARC_BUILTIN_DTB_NAME="nsim_hs_idu"
diff --git a/arch/arc/configs/nsimosci_defconfig b/arch/arc/configs/nsimosci_defconfig
index f6fb3d26557e..6168ce2ac2ef 100644
--- a/arch/arc/configs/nsimosci_defconfig
+++ b/arch/arc/configs/nsimosci_defconfig
@@ -23,7 +23,6 @@ CONFIG_MODULES=y
 # CONFIG_BLK_DEV_BSG is not set
 # CONFIG_IOSCHED_DEADLINE is not set
 # CONFIG_IOSCHED_CFQ is not set
-CONFIG_ARC_PLAT_SIM=y
 CONFIG_ARC_BUILTIN_DTB_NAME="nsimosci"
 # CONFIG_COMPACTION is not set
 CONFIG_NET=y
diff --git a/arch/arc/configs/nsimosci_hs_defconfig b/arch/arc/configs/nsimosci_hs_defconfig
index b9f0fe00044b..a70bdeb2b3fd 100644
--- a/arch/arc/configs/nsimosci_hs_defconfig
+++ b/arch/arc/configs/nsimosci_hs_defconfig
@@ -23,7 +23,6 @@ CONFIG_MODULES=y
 # CONFIG_BLK_DEV_BSG is not set
 # CONFIG_IOSCHED_DEADLINE is not set
 # CONFIG_IOSCHED_CFQ is not set
-CONFIG_ARC_PLAT_SIM=y
 CONFIG_ISA_ARCV2=y
 CONFIG_ARC_BUILTIN_DTB_NAME="nsimosci_hs"
 # CONFIG_COMPACTION is not set
diff --git a/arch/arc/configs/nsimosci_hs_smp_defconfig b/arch/arc/configs/nsimosci_hs_smp_defconfig
index 155add7761ed..ef96406c446e 100644
--- a/arch/arc/configs/nsimosci_hs_smp_defconfig
+++ b/arch/arc/configs/nsimosci_hs_smp_defconfig
@@ -18,7 +18,6 @@ CONFIG_MODULES=y
 # CONFIG_BLK_DEV_BSG is not set
 # CONFIG_IOSCHED_DEADLINE is not set
 # CONFIG_IOSCHED_CFQ is not set
-CONFIG_ARC_PLAT_SIM=y
 CONFIG_ISA_ARCV2=y
 CONFIG_SMP=y
 # CONFIG_ARC_TIMERS_64BIT is not set
diff --git a/arch/arc/configs/tb10x_defconfig b/arch/arc/configs/tb10x_defconfig
index 4c5118384eb5..f30182549395 100644
--- a/arch/arc/configs/tb10x_defconfig
+++ b/arch/arc/configs/tb10x_defconfig
@@ -38,7 +38,6 @@ CONFIG_IP_MULTICAST=y
 # CONFIG_INET_XFRM_MODE_TRANSPORT is not set
 # CONFIG_INET_XFRM_MODE_TUNNEL is not set
 # CONFIG_INET_XFRM_MODE_BEET is not set
-# CONFIG_INET_LRO is not set
 # CONFIG_INET_DIAG is not set
 # CONFIG_IPV6 is not set
 # CONFIG_WIRELESS is not set
diff --git a/arch/arc/include/asm/Kbuild b/arch/arc/include/asm/Kbuild
index 3e74ca5e6402..353dae386b2f 100644
--- a/arch/arc/include/asm/Kbuild
+++ b/arch/arc/include/asm/Kbuild
@@ -1,51 +1,27 @@
-generic-y += auxvec.h
-generic-y += bitsperlong.h
 generic-y += bugs.h
 generic-y += clkdev.h
 generic-y += device.h
 generic-y += div64.h
 generic-y += emergency-restart.h
-generic-y += errno.h
 generic-y += extable.h
 generic-y += fb.h
-generic-y += fcntl.h
 generic-y += ftrace.h
 generic-y += hardirq.h
 generic-y += hw_irq.h
-generic-y += ioctl.h
-generic-y += ioctls.h
-generic-y += ipcbuf.h
 generic-y += irq_regs.h
 generic-y += irq_work.h
 generic-y += kmap_types.h
-generic-y += kvm_para.h
 generic-y += local.h
 generic-y += local64.h
 generic-y += mcs_spinlock.h
 generic-y += mm-arch-hooks.h
-generic-y += mman.h
-generic-y += msgbuf.h
 generic-y += msi.h
-generic-y += param.h
 generic-y += parport.h
 generic-y += pci.h
 generic-y += percpu.h
-generic-y += poll.h
-generic-y += posix_types.h
 generic-y += preempt.h
-generic-y += resource.h
-generic-y += sembuf.h
-generic-y += shmbuf.h
-generic-y += socket.h
-generic-y += sockios.h
-generic-y += stat.h
-generic-y += statfs.h
-generic-y += termbits.h
-generic-y += termios.h
 generic-y += topology.h
 generic-y += trace_clock.h
-generic-y += types.h
-generic-y += ucontext.h
 generic-y += user.h
 generic-y += vga.h
 generic-y += word-at-a-time.h
diff --git a/arch/arc/include/asm/cache.h b/arch/arc/include/asm/cache.h
index 19ebddffb279..02fd1cece6ef 100644
--- a/arch/arc/include/asm/cache.h
+++ b/arch/arc/include/asm/cache.h
@@ -96,7 +96,9 @@ extern unsigned long perip_base, perip_end;
 #define ARC_REG_SLC_FLUSH	0x904
 #define ARC_REG_SLC_INVALIDATE	0x905
 #define ARC_REG_SLC_RGN_START	0x914
+#define ARC_REG_SLC_RGN_START1	0x915
 #define ARC_REG_SLC_RGN_END	0x916
+#define ARC_REG_SLC_RGN_END1	0x917
 
 /* Bit val in SLC_CONTROL */
 #define SLC_CTRL_DIS		0x001
diff --git a/arch/arc/include/asm/mmu.h b/arch/arc/include/asm/mmu.h
index db7319e9b506..efb79fafff1d 100644
--- a/arch/arc/include/asm/mmu.h
+++ b/arch/arc/include/asm/mmu.h
@@ -94,6 +94,8 @@ static inline int is_pae40_enabled(void)
 	return IS_ENABLED(CONFIG_ARC_HAS_PAE40);
 }
 
+extern int pae40_exist_but_not_enab(void);
+
 #endif	/* !__ASSEMBLY__ */
 
 #endif
diff --git a/arch/arc/include/uapi/asm/Kbuild b/arch/arc/include/uapi/asm/Kbuild
index b55fc2ae1e8c..fa6d0ff4ff89 100644
--- a/arch/arc/include/uapi/asm/Kbuild
+++ b/arch/arc/include/uapi/asm/Kbuild
@@ -1,4 +1,28 @@
 # UAPI Header export list
 include include/uapi/asm-generic/Kbuild.asm
 
+generic-y += auxvec.h
+generic-y += bitsperlong.h
+generic-y += errno.h
+generic-y += fcntl.h
+generic-y += ioctl.h
+generic-y += ioctls.h
+generic-y += ipcbuf.h
+generic-y += kvm_para.h
+generic-y += mman.h
+generic-y += msgbuf.h
+generic-y += param.h
+generic-y += poll.h
+generic-y += posix_types.h
+generic-y += resource.h
+generic-y += sembuf.h
+generic-y += shmbuf.h
 generic-y += siginfo.h
+generic-y += socket.h
+generic-y += sockios.h
+generic-y += stat.h
+generic-y += statfs.h
+generic-y += termbits.h
+generic-y += termios.h
+generic-y += types.h
+generic-y += ucontext.h
diff --git a/arch/arc/kernel/intc-arcv2.c b/arch/arc/kernel/intc-arcv2.c
index f928795fd07a..cf90714a676d 100644
--- a/arch/arc/kernel/intc-arcv2.c
+++ b/arch/arc/kernel/intc-arcv2.c
@@ -75,10 +75,13 @@ void arc_init_IRQ(void)
 	 * Set a default priority for all available interrupts to prevent
 	 * switching of register banks if Fast IRQ and multiple register banks
 	 * are supported by CPU.
+	 * Also disable all IRQ lines so faulty external hardware won't
+	 * trigger interrupt that kernel is not ready to handle.
 	 */
 	for (i = NR_EXCEPTIONS; i < irq_bcr.irqs + NR_EXCEPTIONS; i++) {
 		write_aux_reg(AUX_IRQ_SELECT, i);
 		write_aux_reg(AUX_IRQ_PRIORITY, ARCV2_IRQ_DEF_PRIO);
+		write_aux_reg(AUX_IRQ_ENABLE, 0);
 	}
 
 	/* setup status32, don't enable intr yet as kernel doesn't want */
diff --git a/arch/arc/kernel/intc-compact.c b/arch/arc/kernel/intc-compact.c
index 7e608c6b0a01..cef388025adf 100644
--- a/arch/arc/kernel/intc-compact.c
+++ b/arch/arc/kernel/intc-compact.c
@@ -27,7 +27,7 @@
  */
 void arc_init_IRQ(void)
 {
-	int level_mask = 0;
+	int level_mask = 0, i;
 
        /* Is timer high priority Interrupt (Level2 in ARCompact jargon) */
 	level_mask |= IS_ENABLED(CONFIG_ARC_COMPACT_IRQ_LEVELS) << TIMER0_IRQ;
@@ -40,6 +40,18 @@ void arc_init_IRQ(void)
 
 	if (level_mask)
 		pr_info("Level-2 interrupts bitset %x\n", level_mask);
+
+	/*
+	 * Disable all IRQ lines so faulty external hardware won't
+	 * trigger interrupt that kernel is not ready to handle.
+	 */
+	for (i = TIMER0_IRQ; i < NR_CPU_IRQS; i++) {
+		unsigned int ienb;
+
+		ienb = read_aux_reg(AUX_IENABLE);
+		ienb &= ~(1 << i);
+		write_aux_reg(AUX_IENABLE, ienb);
+	}
 }
 
 /*
diff --git a/arch/arc/mm/cache.c b/arch/arc/mm/cache.c
index a867575a758b..7db283b46ebd 100644
--- a/arch/arc/mm/cache.c
+++ b/arch/arc/mm/cache.c
@@ -665,6 +665,7 @@ noinline void slc_op(phys_addr_t paddr, unsigned long sz, const int op)
 	static DEFINE_SPINLOCK(lock);
 	unsigned long flags;
 	unsigned int ctrl;
+	phys_addr_t end;
 
 	spin_lock_irqsave(&lock, flags);
 
@@ -694,8 +695,19 @@ noinline void slc_op(phys_addr_t paddr, unsigned long sz, const int op)
 	 * END needs to be setup before START (latter triggers the operation)
 	 * END can't be same as START, so add (l2_line_sz - 1) to sz
 	 */
-	write_aux_reg(ARC_REG_SLC_RGN_END, (paddr + sz + l2_line_sz - 1));
-	write_aux_reg(ARC_REG_SLC_RGN_START, paddr);
+	end = paddr + sz + l2_line_sz - 1;
+	if (is_pae40_enabled())
+		write_aux_reg(ARC_REG_SLC_RGN_END1, upper_32_bits(end));
+
+	write_aux_reg(ARC_REG_SLC_RGN_END, lower_32_bits(end));
+
+	if (is_pae40_enabled())
+		write_aux_reg(ARC_REG_SLC_RGN_START1, upper_32_bits(paddr));
+
+	write_aux_reg(ARC_REG_SLC_RGN_START, lower_32_bits(paddr));
+
+	/* Make sure "busy" bit reports correct stataus, see STAR 9001165532 */
+	read_aux_reg(ARC_REG_SLC_CTRL);
 
 	while (read_aux_reg(ARC_REG_SLC_CTRL) & SLC_CTRL_BUSY);
 
@@ -1111,6 +1123,13 @@ noinline void __init arc_ioc_setup(void)
 	__dc_enable();
 }
 
+/*
+ * Cache related boot time checks/setups only needed on master CPU:
+ *  - Geometry checks (kernel build and hardware agree: e.g. L1_CACHE_BYTES)
+ *    Assume SMP only, so all cores will have same cache config. A check on
+ *    one core suffices for all
+ *  - IOC setup / dma callbacks only need to be done once
+ */
 void __init arc_cache_init_master(void)
 {
 	unsigned int __maybe_unused cpu = smp_processor_id();
@@ -1190,12 +1209,27 @@ void __ref arc_cache_init(void)
 
 	printk(arc_cache_mumbojumbo(0, str, sizeof(str)));
 
-	/*
-	 * Only master CPU needs to execute rest of function:
-	 *  - Assume SMP so all cores will have same cache config so
-	 *    any geomtry checks will be same for all
-	 *  - IOC setup / dma callbacks only need to be setup once
-	 */
 	if (!cpu)
 		arc_cache_init_master();
+
+	/*
+	 * In PAE regime, TLB and cache maintenance ops take wider addresses
+	 * And even if PAE is not enabled in kernel, the upper 32-bits still need
+	 * to be zeroed to keep the ops sane.
+	 * As an optimization for more common !PAE enabled case, zero them out
+	 * once at init, rather than checking/setting to 0 for every runtime op
+	 */
+	if (is_isa_arcv2() && pae40_exist_but_not_enab()) {
+
+		if (IS_ENABLED(CONFIG_ARC_HAS_ICACHE))
+			write_aux_reg(ARC_REG_IC_PTAG_HI, 0);
+
+		if (IS_ENABLED(CONFIG_ARC_HAS_DCACHE))
+			write_aux_reg(ARC_REG_DC_PTAG_HI, 0);
+
+		if (l2_line_sz) {
+			write_aux_reg(ARC_REG_SLC_RGN_END1, 0);
+			write_aux_reg(ARC_REG_SLC_RGN_START1, 0);
+		}
+	}
 }
diff --git a/arch/arc/mm/dma.c b/arch/arc/mm/dma.c
index 2a07e6ecafbd..e9d93604ad0f 100644
--- a/arch/arc/mm/dma.c
+++ b/arch/arc/mm/dma.c
@@ -117,7 +117,7 @@ static int arc_dma_mmap(struct device *dev, struct vm_area_struct *vma,
 
 	vma->vm_page_prot = pgprot_noncached(vma->vm_page_prot);
 
-	if (dma_mmap_from_coherent(dev, vma, cpu_addr, size, &ret))
+	if (dma_mmap_from_dev_coherent(dev, vma, cpu_addr, size, &ret))
 		return ret;
 
 	if (off < count && user_count <= (count - off)) {
@@ -153,6 +153,19 @@ static void _dma_cache_sync(phys_addr_t paddr, size_t size,
 	}
 }
 
+/*
+ * arc_dma_map_page - map a portion of a page for streaming DMA
+ *
+ * Ensure that any data held in the cache is appropriately discarded
+ * or written back.
+ *
+ * The device owns this memory once this call has completed.  The CPU
+ * can regain ownership by calling dma_unmap_page().
+ *
+ * Note: while it takes struct page as arg, caller can "abuse" it to pass
+ * a region larger than PAGE_SIZE, provided it is physically contiguous
+ * and this still works correctly
+ */
 static dma_addr_t arc_dma_map_page(struct device *dev, struct page *page,
 		unsigned long offset, size_t size, enum dma_data_direction dir,
 		unsigned long attrs)
@@ -165,6 +178,24 @@ static dma_addr_t arc_dma_map_page(struct device *dev, struct page *page,
 	return plat_phys_to_dma(dev, paddr);
 }
 
+/*
+ * arc_dma_unmap_page - unmap a buffer previously mapped through dma_map_page()
+ *
+ * After this call, reads by the CPU to the buffer are guaranteed to see
+ * whatever the device wrote there.
+ *
+ * Note: historically this routine was not implemented for ARC
+ */
+static void arc_dma_unmap_page(struct device *dev, dma_addr_t handle,
+			       size_t size, enum dma_data_direction dir,
+			       unsigned long attrs)
+{
+	phys_addr_t paddr = plat_dma_to_phys(dev, handle);
+
+	if (!(attrs & DMA_ATTR_SKIP_CPU_SYNC))
+		_dma_cache_sync(paddr, size, dir);
+}
+
 static int arc_dma_map_sg(struct device *dev, struct scatterlist *sg,
 	   int nents, enum dma_data_direction dir, unsigned long attrs)
 {
@@ -178,6 +209,18 @@ static int arc_dma_map_sg(struct device *dev, struct scatterlist *sg,
 	return nents;
 }
 
+static void arc_dma_unmap_sg(struct device *dev, struct scatterlist *sg,
+			     int nents, enum dma_data_direction dir,
+			     unsigned long attrs)
+{
+	struct scatterlist *s;
+	int i;
+
+	for_each_sg(sg, s, nents, i)
+		arc_dma_unmap_page(dev, sg_dma_address(s), sg_dma_len(s), dir,
+				   attrs);
+}
+
 static void arc_dma_sync_single_for_cpu(struct device *dev,
 		dma_addr_t dma_handle, size_t size, enum dma_data_direction dir)
 {
@@ -223,7 +266,9 @@ const struct dma_map_ops arc_dma_ops = {
 	.free			= arc_dma_free,
 	.mmap			= arc_dma_mmap,
 	.map_page		= arc_dma_map_page,
+	.unmap_page		= arc_dma_unmap_page,
 	.map_sg			= arc_dma_map_sg,
+	.unmap_sg		= arc_dma_unmap_sg,
 	.sync_single_for_device	= arc_dma_sync_single_for_device,
 	.sync_single_for_cpu	= arc_dma_sync_single_for_cpu,
 	.sync_sg_for_cpu	= arc_dma_sync_sg_for_cpu,
diff --git a/arch/arc/mm/tlb.c b/arch/arc/mm/tlb.c
index d0126fdfe2d8..b181f3ee38aa 100644
--- a/arch/arc/mm/tlb.c
+++ b/arch/arc/mm/tlb.c
@@ -104,6 +104,8 @@
 /* A copy of the ASID from the PID reg is kept in asid_cache */
 DEFINE_PER_CPU(unsigned int, asid_cache) = MM_CTXT_FIRST_CYCLE;
 
+static int __read_mostly pae_exists;
+
 /*
  * Utility Routine to erase a J-TLB entry
  * Caller needs to setup Index Reg (manually or via getIndex)
@@ -784,7 +786,7 @@ void read_decode_mmu_bcr(void)
 		mmu->u_dtlb = mmu4->u_dtlb * 4;
 		mmu->u_itlb = mmu4->u_itlb * 4;
 		mmu->sasid = mmu4->sasid;
-		mmu->pae = mmu4->pae;
+		pae_exists = mmu->pae = mmu4->pae;
 	}
 }
 
@@ -809,6 +811,11 @@ char *arc_mmu_mumbojumbo(int cpu_id, char *buf, int len)
 	return buf;
 }
 
+int pae40_exist_but_not_enab(void)
+{
+	return pae_exists && !is_pae40_enabled();
+}
+
 void arc_mmu_init(void)
 {
 	char str[256];
@@ -859,6 +866,9 @@ void arc_mmu_init(void)
 	/* swapper_pg_dir is the pgd for the kernel, used by vmalloc */
 	write_aux_reg(ARC_REG_SCRATCH_DATA0, swapper_pg_dir);
 #endif
+
+	if (pae40_exist_but_not_enab())
+		write_aux_reg(ARC_REG_TLBPD1HI, 0);
 }
 
 /*
diff --git a/arch/arc/plat-sim/Kconfig b/arch/arc/plat-sim/Kconfig
deleted file mode 100644
index ac6af96a82f3..000000000000
--- a/arch/arc/plat-sim/Kconfig
+++ /dev/null
@@ -1,13 +0,0 @@
-#
-# Copyright (C) 2007-2010, 2011-2012 Synopsys, Inc. (www.synopsys.com)
-#
-# This program is free software; you can redistribute it and/or modify
-# it under the terms of the GNU General Public License version 2 as
-# published by the Free Software Foundation.
-#
-
-menuconfig ARC_PLAT_SIM
-	bool "ARC nSIM based simulation virtual platforms"
-	help
-	  Support for nSIM based ARC simulation platforms
-	  This includes the standalone nSIM (uart only) vs. System C OSCI VP
diff --git a/arch/arc/plat-sim/platform.c b/arch/arc/plat-sim/platform.c
index aea87389e44b..5cda56b1a2ea 100644
--- a/arch/arc/plat-sim/platform.c
+++ b/arch/arc/plat-sim/platform.c
@@ -20,11 +20,14 @@
  */
 
 static const char *simulation_compat[] __initconst = {
+#ifdef CONFIG_ISA_ARCOMPACT
 	"snps,nsim",
-	"snps,nsim_hs",
 	"snps,nsimosci",
+#else
+	"snps,nsim_hs",
 	"snps,nsimosci_hs",
 	"snps,zebu_hs",
+#endif
 	NULL,
 };
 
diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
index a208bfe367b5..61a0cb15067e 100644
--- a/arch/arm/Kconfig
+++ b/arch/arm/Kconfig
@@ -380,7 +380,7 @@ config ARCH_EP93XX
 	bool "EP93xx-based"
 	select ARCH_HAS_HOLES_MEMORYMODEL
 	select ARM_AMBA
-	select ARM_PATCH_PHYS_VIRT
+	imply ARM_PATCH_PHYS_VIRT
 	select ARM_VIC
 	select AUTO_ZRELADDR
 	select CLKDEV_LOOKUP
diff --git a/arch/arm/boot/dts/armada-388-gp.dts b/arch/arm/boot/dts/armada-388-gp.dts
index 895fa6cfa15a..563901e0ec07 100644
--- a/arch/arm/boot/dts/armada-388-gp.dts
+++ b/arch/arm/boot/dts/armada-388-gp.dts
@@ -75,7 +75,7 @@
 					pinctrl-names = "default";
 					pinctrl-0 = <&pca0_pins>;
 					interrupt-parent = <&gpio0>;
-					interrupts = <18 IRQ_TYPE_EDGE_FALLING>;
+					interrupts = <18 IRQ_TYPE_LEVEL_LOW>;
 					gpio-controller;
 					#gpio-cells = <2>;
 					interrupt-controller;
@@ -87,7 +87,7 @@
 					compatible = "nxp,pca9555";
 					pinctrl-names = "default";
 					interrupt-parent = <&gpio0>;
-					interrupts = <18 IRQ_TYPE_EDGE_FALLING>;
+					interrupts = <18 IRQ_TYPE_LEVEL_LOW>;
 					gpio-controller;
 					#gpio-cells = <2>;
 					interrupt-controller;
diff --git a/arch/arm/boot/dts/da850-evm.dts b/arch/arm/boot/dts/da850-evm.dts
index a423e8ebfb37..67e72bc72e80 100644
--- a/arch/arm/boot/dts/da850-evm.dts
+++ b/arch/arm/boot/dts/da850-evm.dts
@@ -301,25 +301,4 @@
 	pinctrl-names = "default";
 	pinctrl-0 = <&vpif_capture_pins>, <&vpif_display_pins>;
 	status = "okay";
-
-	/* VPIF capture port */
-	port@0 {
-		vpif_input_ch0: endpoint@0 {
-			reg = <0>;
-			bus-width = <8>;
-		};
-
-		vpif_input_ch1: endpoint@1 {
-			reg = <1>;
-			bus-width = <8>;
-			data-shift = <8>;
-		};
-	};
-
-	/* VPIF display port */
-	port@1 {
-		vpif_output_ch0: endpoint {
-			bus-width = <8>;
-		};
-	};
 };
diff --git a/arch/arm/boot/dts/da850-lcdk.dts b/arch/arm/boot/dts/da850-lcdk.dts
index b837fec70eec..a0f0916156e6 100644
--- a/arch/arm/boot/dts/da850-lcdk.dts
+++ b/arch/arm/boot/dts/da850-lcdk.dts
@@ -318,11 +318,4 @@
 	pinctrl-names = "default";
 	pinctrl-0 = <&vpif_capture_pins>;
 	status = "okay";
-
-	/* VPIF capture port */
-	port {
-		vpif_ch0: endpoint {
-			  bus-width = <8>;
-		};
-	};
 };
diff --git a/arch/arm/boot/dts/dm8168-evm.dts b/arch/arm/boot/dts/dm8168-evm.dts
index 1865976db5f9..c72a2132aa82 100644
--- a/arch/arm/boot/dts/dm8168-evm.dts
+++ b/arch/arm/boot/dts/dm8168-evm.dts
@@ -68,6 +68,34 @@
 			DM816X_IOPAD(0x0d08, MUX_MODE0)			/* USB1_DRVVBUS */
 		>;
 	};
+
+	nandflash_pins: nandflash_pins {
+		pinctrl-single,pins = <
+			DM816X_IOPAD(0x0b38, PULL_UP | MUX_MODE0)		/* PINCTRL207 GPMC_CS0*/
+			DM816X_IOPAD(0x0b60, PULL_ENA | MUX_MODE0)		/* PINCTRL217 GPMC_ADV_ALE */
+			DM816X_IOPAD(0x0b54, PULL_UP | PULL_ENA | MUX_MODE0)	/* PINCTRL214 GPMC_OE_RE */
+			DM816X_IOPAD(0x0b58, PULL_ENA | MUX_MODE0)		/* PINCTRL215 GPMC_BE0_CLE */
+			DM816X_IOPAD(0x0b50, PULL_UP | MUX_MODE0)		/* PINCTRL213 GPMC_WE */
+			DM816X_IOPAD(0x0b6c, MUX_MODE0)				/* PINCTRL220 GPMC_WAIT */
+			DM816X_IOPAD(0x0be4, PULL_ENA | MUX_MODE0)		/* PINCTRL250 GPMC_CLK */
+			DM816X_IOPAD(0x0ba4, MUX_MODE0)				/* PINCTRL234 GPMC_D0 */
+			DM816X_IOPAD(0x0ba8, MUX_MODE0)				/* PINCTRL234 GPMC_D1 */
+			DM816X_IOPAD(0x0bac, MUX_MODE0)				/* PINCTRL234 GPMC_D2 */
+			DM816X_IOPAD(0x0bb0, MUX_MODE0)				/* PINCTRL234 GPMC_D3 */
+			DM816X_IOPAD(0x0bb4, MUX_MODE0)				/* PINCTRL234 GPMC_D4 */
+			DM816X_IOPAD(0x0bb8, MUX_MODE0)				/* PINCTRL234 GPMC_D5 */
+			DM816X_IOPAD(0x0bbc, MUX_MODE0)				/* PINCTRL234 GPMC_D6 */
+			DM816X_IOPAD(0x0bc0, MUX_MODE0)				/* PINCTRL234 GPMC_D7 */
+			DM816X_IOPAD(0x0bc4, MUX_MODE0)				/* PINCTRL234 GPMC_D8 */
+			DM816X_IOPAD(0x0bc8, MUX_MODE0)				/* PINCTRL234 GPMC_D9 */
+			DM816X_IOPAD(0x0bcc, MUX_MODE0)				/* PINCTRL234 GPMC_D10 */
+			DM816X_IOPAD(0x0bd0, MUX_MODE0)				/* PINCTRL234 GPMC_D11 */
+			DM816X_IOPAD(0x0bd4, MUX_MODE0)				/* PINCTRL234 GPMC_D12 */
+			DM816X_IOPAD(0x0bd8, MUX_MODE0)				/* PINCTRL234 GPMC_D13 */
+			DM816X_IOPAD(0x0bdc, MUX_MODE0)				/* PINCTRL234 GPMC_D14 */
+			DM816X_IOPAD(0x0be0, MUX_MODE0)				/* PINCTRL234 GPMC_D15 */
+		>;
+	};
 };
 
 &i2c1 {
@@ -90,6 +118,8 @@
 
 &gpmc {
 	ranges = <0 0 0x04000000 0x01000000>;	/* CS0: 16MB for NAND */
+	pinctrl-names = "default";
+	pinctrl-0 = <&nandflash_pins>;
 
 	nand@0,0 {
 		compatible = "ti,omap2-nand";
@@ -98,9 +128,11 @@
 		interrupt-parent = <&gpmc>;
 		interrupts = <0 IRQ_TYPE_NONE>, /* fifoevent */
 			     <1 IRQ_TYPE_NONE>; /* termcount */
+		rb-gpios = <&gpmc 0 GPIO_ACTIVE_HIGH>; /* gpmc_wait0 */
 		#address-cells = <1>;
 		#size-cells = <1>;
 		ti,nand-ecc-opt = "bch8";
+		ti,elm-id = <&elm>;
 		nand-bus-width = <16>;
 		gpmc,device-width = <2>;
 		gpmc,sync-clk-ps = <0>;
@@ -164,7 +196,7 @@
 	vmmc-supply = <&vmmcsd_fixed>;
 	bus-width = <4>;
 	cd-gpios = <&gpio2 7 GPIO_ACTIVE_LOW>;
-	wp-gpios = <&gpio2 8 GPIO_ACTIVE_LOW>;
+	wp-gpios = <&gpio2 8 GPIO_ACTIVE_HIGH>;
 };
 
 /* At least dm8168-evm rev c won't support multipoint, later may */
diff --git a/arch/arm/boot/dts/dm816x.dtsi b/arch/arm/boot/dts/dm816x.dtsi
index 59cbf958fcc3..566b2a8c8b96 100644
--- a/arch/arm/boot/dts/dm816x.dtsi
+++ b/arch/arm/boot/dts/dm816x.dtsi
@@ -145,7 +145,7 @@
 		};
 
 		elm: elm@48080000 {
-			compatible = "ti,816-elm";
+			compatible = "ti,am3352-elm";
 			ti,hwmods = "elm";
 			reg = <0x48080000 0x2000>;
 			interrupts = <4>;
diff --git a/arch/arm/boot/dts/dra71-evm.dts b/arch/arm/boot/dts/dra71-evm.dts
index 4d57a55473af..a6298eb56978 100644
--- a/arch/arm/boot/dts/dra71-evm.dts
+++ b/arch/arm/boot/dts/dra71-evm.dts
@@ -190,7 +190,7 @@
 		ti,rx-internal-delay = <DP83867_RGMIIDCTL_2_25_NS>;
 		ti,tx-internal-delay = <DP83867_RGMIIDCTL_250_PS>;
 		ti,fifo-depth = <DP83867_PHYCR_FIFO_DEPTH_8_B_NIB>;
-		ti,impedance-control = <0x1f>;
+		ti,min-output-impedance;
 	};
 
 	dp83867_1: ethernet-phy@3 {
@@ -198,7 +198,7 @@
 		ti,rx-internal-delay = <DP83867_RGMIIDCTL_2_25_NS>;
 		ti,tx-internal-delay = <DP83867_RGMIIDCTL_250_PS>;
 		ti,fifo-depth = <DP83867_PHYCR_FIFO_DEPTH_8_B_NIB>;
-		ti,impedance-control = <0x1f>;
+		ti,min-output-impedance;
 	};
 };
 
diff --git a/arch/arm/boot/dts/exynos4.dtsi b/arch/arm/boot/dts/exynos4.dtsi
index 497a9470c888..5739389f5bb8 100644
--- a/arch/arm/boot/dts/exynos4.dtsi
+++ b/arch/arm/boot/dts/exynos4.dtsi
@@ -59,6 +59,9 @@
 		compatible = "samsung,exynos4210-audss-clock";
 		reg = <0x03810000 0x0C>;
 		#clock-cells = <1>;
+		clocks = <&clock CLK_FIN_PLL>, <&clock CLK_FOUT_EPLL>,
+			 <&clock CLK_SCLK_AUDIO0>, <&clock CLK_SCLK_AUDIO0>;
+		clock-names = "pll_ref", "pll_in", "sclk_audio", "sclk_pcm_in";
 	};
 
 	i2s0: i2s@03830000 {
diff --git a/arch/arm/boot/dts/imx25.dtsi b/arch/arm/boot/dts/imx25.dtsi
index dfcc8e00cf1c..0ade3619f3c3 100644
--- a/arch/arm/boot/dts/imx25.dtsi
+++ b/arch/arm/boot/dts/imx25.dtsi
@@ -297,6 +297,7 @@
 				#address-cells = <1>;
 				#size-cells = <1>;
 				status = "disabled";
+				ranges;
 
 				adc: adc@50030800 {
 					compatible = "fsl,imx25-gcq";
diff --git a/arch/arm/boot/dts/imx6qdl-nitrogen6_som2.dtsi b/arch/arm/boot/dts/imx6qdl-nitrogen6_som2.dtsi
index aeaa5a6e4fcf..a24e4f1911ab 100644
--- a/arch/arm/boot/dts/imx6qdl-nitrogen6_som2.dtsi
+++ b/arch/arm/boot/dts/imx6qdl-nitrogen6_som2.dtsi
@@ -507,7 +507,7 @@
 	pinctrl_pcie: pciegrp {
 		fsl,pins = <
 			/* PCIe reset */
-			MX6QDL_PAD_EIM_BCLK__GPIO6_IO31	0x030b0
+			MX6QDL_PAD_EIM_DA0__GPIO3_IO00	0x030b0
 			MX6QDL_PAD_EIM_DA4__GPIO3_IO04	0x030b0
 		>;
 	};
@@ -668,7 +668,7 @@
 &pcie {
 	pinctrl-names = "default";
 	pinctrl-0 = <&pinctrl_pcie>;
-	reset-gpio = <&gpio6 31 GPIO_ACTIVE_LOW>;
+	reset-gpio = <&gpio3 0 GPIO_ACTIVE_LOW>;
 	status = "okay";
 };
 
diff --git a/arch/arm/boot/dts/imx7d-sdb.dts b/arch/arm/boot/dts/imx7d-sdb.dts
index 54c45402286b..0a24d1bf3c39 100644
--- a/arch/arm/boot/dts/imx7d-sdb.dts
+++ b/arch/arm/boot/dts/imx7d-sdb.dts
@@ -557,6 +557,14 @@
 			>;
 		};
 
+		pinctrl_spi4: spi4grp {
+			fsl,pins = <
+				MX7D_PAD_GPIO1_IO09__GPIO1_IO9	0x59
+				MX7D_PAD_GPIO1_IO12__GPIO1_IO12	0x59
+				MX7D_PAD_GPIO1_IO13__GPIO1_IO13	0x59
+			>;
+		};
+
 		pinctrl_tsc2046_pendown: tsc2046_pendown {
 			fsl,pins = <
 				MX7D_PAD_EPDC_BDR1__GPIO2_IO29		0x59
@@ -697,13 +705,5 @@
 		fsl,pins = <
 			MX7D_PAD_LPSR_GPIO1_IO01__PWM1_OUT		0x110b0
 		>;
-
-		pinctrl_spi4: spi4grp {
-			fsl,pins = <
-				MX7D_PAD_GPIO1_IO09__GPIO1_IO9	0x59
-				MX7D_PAD_GPIO1_IO12__GPIO1_IO12	0x59
-				MX7D_PAD_GPIO1_IO13__GPIO1_IO13	0x59
-			>;
-		};
 	};
 };
diff --git a/arch/arm/boot/dts/rk3288.dtsi b/arch/arm/boot/dts/rk3288.dtsi
index 2484f11761ea..858e1fed762a 100644
--- a/arch/arm/boot/dts/rk3288.dtsi
+++ b/arch/arm/boot/dts/rk3288.dtsi
@@ -1126,8 +1126,8 @@
 		};
 	};
 
-	gpu: mali@ffa30000 {
-		compatible = "rockchip,rk3288-mali", "arm,mali-t760", "arm,mali-midgard";
+	gpu: gpu@ffa30000 {
+		compatible = "rockchip,rk3288-mali", "arm,mali-t760";
 		reg = <0xffa30000 0x10000>;
 		interrupts = <GIC_SPI 6 IRQ_TYPE_LEVEL_HIGH>,
 			     <GIC_SPI 7 IRQ_TYPE_LEVEL_HIGH>,
diff --git a/arch/arm/boot/dts/sama5d2.dtsi b/arch/arm/boot/dts/sama5d2.dtsi
index cc06da394366..60e69aeacbdb 100644
--- a/arch/arm/boot/dts/sama5d2.dtsi
+++ b/arch/arm/boot/dts/sama5d2.dtsi
@@ -303,7 +303,7 @@
 			#size-cells = <1>;
 			atmel,smc = <&hsmc>;
 			reg = <0x10000000 0x10000000
-			       0x40000000 0x30000000>;
+			       0x60000000 0x30000000>;
 			ranges = <0x0 0x0 0x10000000 0x10000000
 				  0x1 0x0 0x60000000 0x10000000
 				  0x2 0x0 0x70000000 0x10000000
@@ -1048,18 +1048,18 @@
 			};
 
 			hsmc: hsmc@f8014000 {
-				compatible = "atmel,sama5d3-smc", "syscon", "simple-mfd";
+				compatible = "atmel,sama5d2-smc", "syscon", "simple-mfd";
 				reg = <0xf8014000 0x1000>;
-				interrupts = <5 IRQ_TYPE_LEVEL_HIGH 6>;
+				interrupts = <17 IRQ_TYPE_LEVEL_HIGH 6>;
 				clocks = <&hsmc_clk>;
 				#address-cells = <1>;
 				#size-cells = <1>;
 				ranges;
 
-				pmecc: ecc-engine@ffffc070 {
+				pmecc: ecc-engine@f8014070 {
 					compatible = "atmel,sama5d2-pmecc";
-					reg = <0xffffc070 0x490>,
-					      <0xffffc500 0x100>;
+					reg = <0xf8014070 0x490>,
+					      <0xf8014500 0x100>;
 				};
 			};
 
diff --git a/arch/arm/boot/dts/sun8i-a83t.dtsi b/arch/arm/boot/dts/sun8i-a83t.dtsi
index 8923ba625b76..19a8f4fcfab5 100644
--- a/arch/arm/boot/dts/sun8i-a83t.dtsi
+++ b/arch/arm/boot/dts/sun8i-a83t.dtsi
@@ -44,7 +44,9 @@
 
 #include <dt-bindings/interrupt-controller/arm-gic.h>
 
+#include <dt-bindings/clock/sun8i-a83t-ccu.h>
 #include <dt-bindings/clock/sun8i-r-ccu.h>
+#include <dt-bindings/reset/sun8i-a83t-ccu.h>
 
 / {
 	interrupt-parent = <&gic>;
@@ -175,8 +177,8 @@
 			compatible = "allwinner,sun8i-a83t-dma";
 			reg = <0x01c02000 0x1000>;
 			interrupts = <GIC_SPI 50 IRQ_TYPE_LEVEL_HIGH>;
-			clocks = <&ccu 21>;
-			resets = <&ccu 7>;
+			clocks = <&ccu CLK_BUS_DMA>;
+			resets = <&ccu RST_BUS_DMA>;
 			#dma-cells = <1>;
 		};
 
@@ -195,7 +197,7 @@
 				     <GIC_SPI 17 IRQ_TYPE_LEVEL_HIGH>,
 				     <GIC_SPI 100 IRQ_TYPE_LEVEL_HIGH>;
 			reg = <0x01c20800 0x400>;
-			clocks = <&ccu 45>, <&osc24M>, <&osc16Md512>;
+			clocks = <&ccu CLK_BUS_PIO>, <&osc24M>, <&osc16Md512>;
 			clock-names = "apb", "hosc", "losc";
 			gpio-controller;
 			interrupt-controller;
@@ -247,8 +249,8 @@
 				     "allwinner,sun8i-h3-spdif";
 			reg = <0x01c21000 0x400>;
 			interrupts = <GIC_SPI 12 IRQ_TYPE_LEVEL_HIGH>;
-			clocks = <&ccu 44>, <&ccu 76>;
-			resets = <&ccu 32>;
+			clocks = <&ccu CLK_BUS_SPDIF>, <&ccu CLK_SPDIF>;
+			resets = <&ccu RST_BUS_SPDIF>;
 			clock-names = "apb", "spdif";
 			dmas = <&dma 2>;
 			dma-names = "tx";
@@ -263,8 +265,8 @@
 			interrupts = <GIC_SPI 0 IRQ_TYPE_LEVEL_HIGH>;
 			reg-shift = <2>;
 			reg-io-width = <4>;
-			clocks = <&ccu 53>;
-			resets = <&ccu 40>;
+			clocks = <&ccu CLK_BUS_UART0>;
+			resets = <&ccu RST_BUS_UART0>;
 			status = "disabled";
 		};
 
diff --git a/arch/arm/boot/dts/sunxi-h3-h5.dtsi b/arch/arm/boot/dts/sunxi-h3-h5.dtsi
index 6f2162608006..d38282b9e5d4 100644
--- a/arch/arm/boot/dts/sunxi-h3-h5.dtsi
+++ b/arch/arm/boot/dts/sunxi-h3-h5.dtsi
@@ -394,7 +394,7 @@
 		emac: ethernet@1c30000 {
 			compatible = "allwinner,sun8i-h3-emac";
 			syscon = <&syscon>;
-			reg = <0x01c30000 0x104>;
+			reg = <0x01c30000 0x10000>;
 			interrupts = <GIC_SPI 82 IRQ_TYPE_LEVEL_HIGH>;
 			interrupt-names = "macirq";
 			resets = <&ccu RST_BUS_EMAC>;
diff --git a/arch/arm/boot/dts/tango4-vantage-1172.dts b/arch/arm/boot/dts/tango4-vantage-1172.dts
index 86d8df98802f..13bcc460bcb2 100644
--- a/arch/arm/boot/dts/tango4-vantage-1172.dts
+++ b/arch/arm/boot/dts/tango4-vantage-1172.dts
@@ -22,7 +22,7 @@
 };
 
 &eth0 {
-	phy-connection-type = "rgmii";
+	phy-connection-type = "rgmii-id";
 	phy-handle = <&eth0_phy>;
 	#address-cells = <1>;
 	#size-cells = <0>;
diff --git a/arch/arm/include/asm/Kbuild b/arch/arm/include/asm/Kbuild
index d8360501c082..721ab5ecfb9b 100644
--- a/arch/arm/include/asm/Kbuild
+++ b/arch/arm/include/asm/Kbuild
@@ -1,39 +1,23 @@
-
-
-generic-y += bitsperlong.h
 generic-y += clkdev.h
 generic-y += current.h
 generic-y += early_ioremap.h
 generic-y += emergency-restart.h
-generic-y += errno.h
 generic-y += exec.h
 generic-y += extable.h
-generic-y += ioctl.h
-generic-y += ipcbuf.h
 generic-y += irq_regs.h
 generic-y += kdebug.h
 generic-y += local.h
 generic-y += local64.h
 generic-y += mm-arch-hooks.h
-generic-y += msgbuf.h
 generic-y += msi.h
-generic-y += param.h
 generic-y += parport.h
-generic-y += poll.h
 generic-y += preempt.h
-generic-y += resource.h
 generic-y += rwsem.h
 generic-y += seccomp.h
 generic-y += segment.h
-generic-y += sembuf.h
 generic-y += serial.h
-generic-y += shmbuf.h
 generic-y += simd.h
 generic-y += sizes.h
-generic-y += socket.h
-generic-y += sockios.h
-generic-y += termbits.h
-generic-y += termios.h
 generic-y += timex.h
 generic-y += trace_clock.h
 generic-y += unaligned.h
diff --git a/arch/arm/include/asm/bug.h b/arch/arm/include/asm/bug.h
index 4e6e88a6b2f4..2244a94ed9c9 100644
--- a/arch/arm/include/asm/bug.h
+++ b/arch/arm/include/asm/bug.h
@@ -37,7 +37,7 @@ do {								\
 		".pushsection .rodata.str, \"aMS\", %progbits, 1\n" \
 		"2:\t.asciz " #__file "\n" 			\
 		".popsection\n" 				\
-		".pushsection __bug_table,\"a\"\n"		\
+		".pushsection __bug_table,\"aw\"\n"		\
 		".align 2\n"					\
 		"3:\t.word 1b, 2b\n"				\
 		"\t.hword " #__line ", 0\n"			\
diff --git a/arch/arm/include/asm/cacheflush.h b/arch/arm/include/asm/cacheflush.h
index d69bebf697e7..74504b154256 100644
--- a/arch/arm/include/asm/cacheflush.h
+++ b/arch/arm/include/asm/cacheflush.h
@@ -116,7 +116,7 @@ struct cpu_cache_fns {
 	void (*dma_unmap_area)(const void *, size_t, int);
 
 	void (*dma_flush_range)(const void *, const void *);
-};
+} __no_randomize_layout;
 
 /*
  * Select the calling method
diff --git a/arch/arm/include/asm/flat.h b/arch/arm/include/asm/flat.h
index acf1d14b89a6..29d3a1524bce 100644
--- a/arch/arm/include/asm/flat.h
+++ b/arch/arm/include/asm/flat.h
@@ -5,12 +5,31 @@
 #ifndef __ARM_FLAT_H__
 #define __ARM_FLAT_H__
 
+#include <linux/uaccess.h>
+
 #define	flat_argvp_envp_on_stack()		1
 #define	flat_old_ram_flag(flags)		(flags)
 #define	flat_reloc_valid(reloc, size)		((reloc) <= (size))
-#define	flat_get_addr_from_rp(rp, relval, flags, persistent) \
-	({ unsigned long __val; __get_user_unaligned(__val, rp); __val; })
-#define	flat_put_addr_at_rp(rp, val, relval)	__put_user_unaligned(val, rp)
+
+static inline int flat_get_addr_from_rp(u32 __user *rp, u32 relval, u32 flags,
+					u32 *addr, u32 *persistent)
+{
+#ifndef CONFIG_HAVE_EFFICIENT_UNALIGNED_ACCESS
+	return copy_from_user(addr, rp, 4) ? -EFAULT : 0;
+#else
+	return get_user(*addr, rp);
+#endif
+}
+
+static inline int flat_put_addr_at_rp(u32 __user *rp, u32 addr, u32 rel)
+{
+#ifndef CONFIG_HAVE_EFFICIENT_UNALIGNED_ACCESS
+	return copy_to_user(rp, &addr, 4) ? -EFAULT : 0;
+#else
+	return put_user(addr, rp);
+#endif
+}
+
 #define	flat_get_relocate_addr(rel)		(rel)
 #define	flat_set_persistent(relval, p)		0
 
diff --git a/arch/arm/include/asm/kexec.h b/arch/arm/include/asm/kexec.h
index 1869af6bac5c..25021b798a1e 100644
--- a/arch/arm/include/asm/kexec.h
+++ b/arch/arm/include/asm/kexec.h
@@ -19,6 +19,11 @@
 
 #ifndef __ASSEMBLY__
 
+#define ARCH_HAS_KIMAGE_ARCH
+struct kimage_arch {
+	u32 kernel_r2;
+};
+
 /**
  * crash_setup_regs() - save registers for the panic kernel
  * @newregs: registers are saved here
diff --git a/arch/arm/include/asm/kvm_hyp.h b/arch/arm/include/asm/kvm_hyp.h
index 58508900c4bb..14b5903f0224 100644
--- a/arch/arm/include/asm/kvm_hyp.h
+++ b/arch/arm/include/asm/kvm_hyp.h
@@ -110,8 +110,8 @@ void __sysreg_restore_state(struct kvm_cpu_context *ctxt);
 void __vgic_v3_save_state(struct kvm_vcpu *vcpu);
 void __vgic_v3_restore_state(struct kvm_vcpu *vcpu);
 
-void asmlinkage __vfp_save_state(struct vfp_hard_struct *vfp);
-void asmlinkage __vfp_restore_state(struct vfp_hard_struct *vfp);
+asmlinkage void __vfp_save_state(struct vfp_hard_struct *vfp);
+asmlinkage void __vfp_restore_state(struct vfp_hard_struct *vfp);
 static inline bool __vfp_enabled(void)
 {
 	return !(read_sysreg(HCPTR) & (HCPTR_TCP(11) | HCPTR_TCP(10)));
@@ -120,8 +120,8 @@ static inline bool __vfp_enabled(void)
 void __hyp_text __banked_save_state(struct kvm_cpu_context *ctxt);
 void __hyp_text __banked_restore_state(struct kvm_cpu_context *ctxt);
 
-int asmlinkage __guest_enter(struct kvm_vcpu *vcpu,
+asmlinkage int __guest_enter(struct kvm_vcpu *vcpu,
 			     struct kvm_cpu_context *host);
-int asmlinkage __hyp_do_panic(const char *, int, u32);
+asmlinkage int __hyp_do_panic(const char *, int, u32);
 
 #endif /* __ARM_KVM_HYP_H__ */
diff --git a/arch/arm/include/asm/tlb.h b/arch/arm/include/asm/tlb.h
index 3f2eb76243e3..d5562f9ce600 100644
--- a/arch/arm/include/asm/tlb.h
+++ b/arch/arm/include/asm/tlb.h
@@ -148,7 +148,8 @@ static inline void tlb_flush_mmu(struct mmu_gather *tlb)
 }
 
 static inline void
-tlb_gather_mmu(struct mmu_gather *tlb, struct mm_struct *mm, unsigned long start, unsigned long end)
+arch_tlb_gather_mmu(struct mmu_gather *tlb, struct mm_struct *mm,
+			unsigned long start, unsigned long end)
 {
 	tlb->mm = mm;
 	tlb->fullmm = !(start | (end+1));
@@ -166,8 +167,14 @@ tlb_gather_mmu(struct mmu_gather *tlb, struct mm_struct *mm, unsigned long start
 }
 
 static inline void
-tlb_finish_mmu(struct mmu_gather *tlb, unsigned long start, unsigned long end)
+arch_tlb_finish_mmu(struct mmu_gather *tlb,
+			unsigned long start, unsigned long end, bool force)
 {
+	if (force) {
+		tlb->range_start = start;
+		tlb->range_end = end;
+	}
+
 	tlb_flush_mmu(tlb);
 
 	/* keep the page table cache within bounds */
diff --git a/arch/arm/include/asm/uaccess.h b/arch/arm/include/asm/uaccess.h
index 6838abc04279..0bf2347495f1 100644
--- a/arch/arm/include/asm/uaccess.h
+++ b/arch/arm/include/asm/uaccess.h
@@ -17,13 +17,6 @@
 #include <asm/unified.h>
 #include <asm/compiler.h>
 
-#ifndef CONFIG_HAVE_EFFICIENT_UNALIGNED_ACCESS
-#include <asm-generic/uaccess-unaligned.h>
-#else
-#define __get_user_unaligned __get_user
-#define __put_user_unaligned __put_user
-#endif
-
 #include <asm/extable.h>
 
 /*
diff --git a/arch/arm/include/asm/ucontext.h b/arch/arm/include/asm/ucontext.h
index 14749aec94bf..921d8274855c 100644
--- a/arch/arm/include/asm/ucontext.h
+++ b/arch/arm/include/asm/ucontext.h
@@ -35,6 +35,12 @@ struct ucontext {
  * bytes, to prevent unpredictable padding in the signal frame.
  */
 
+/*
+ * Dummy padding block: if this magic is encountered, the block should
+ * be skipped using the corresponding size field.
+ */
+#define DUMMY_MAGIC		0xb0d9ed01
+
 #ifdef CONFIG_CRUNCH
 #define CRUNCH_MAGIC		0x5065cf03
 #define CRUNCH_STORAGE_SIZE	(CRUNCH_SIZE + 8)
diff --git a/arch/arm/include/uapi/asm/Kbuild b/arch/arm/include/uapi/asm/Kbuild
index 5fb3368e70cb..8e17fe80b55b 100644
--- a/arch/arm/include/uapi/asm/Kbuild
+++ b/arch/arm/include/uapi/asm/Kbuild
@@ -5,4 +5,18 @@ generated-y += unistd-common.h
 generated-y += unistd-oabi.h
 generated-y += unistd-eabi.h
 
+generic-y += bitsperlong.h
+generic-y += errno.h
+generic-y += ioctl.h
+generic-y += ipcbuf.h
+generic-y += msgbuf.h
+generic-y += param.h
+generic-y += poll.h
+generic-y += resource.h
+generic-y += sembuf.h
+generic-y += shmbuf.h
 generic-y += siginfo.h
+generic-y += socket.h
+generic-y += sockios.h
+generic-y += termbits.h
+generic-y += termios.h
diff --git a/arch/arm/kernel/bios32.c b/arch/arm/kernel/bios32.c
index 56dc1a3a33b4..c1809fb549dd 100644
--- a/arch/arm/kernel/bios32.c
+++ b/arch/arm/kernel/bios32.c
@@ -480,7 +480,7 @@ static void pcibios_init_hw(struct device *parent, struct hw_pci *hw,
 
 			ret = pcibios_init_resource(nr, sys, hw->io_optional);
 			if (ret)  {
-				kfree(sys);
+				pci_free_host_bridge(bridge);
 				break;
 			}
 
diff --git a/arch/arm/kernel/machine_kexec.c b/arch/arm/kernel/machine_kexec.c
index 15495887ca14..fe1419eeb932 100644
--- a/arch/arm/kernel/machine_kexec.c
+++ b/arch/arm/kernel/machine_kexec.c
@@ -30,7 +30,6 @@ extern unsigned long kexec_boot_atags;
 
 static atomic_t waiting_for_crash_ipi;
 
-static unsigned long dt_mem;
 /*
  * Provide a dummy crash_notes definition while crash dump arrives to arm.
  * This prevents breakage of crash_notes attribute in kernel/ksysfs.c.
@@ -42,6 +41,9 @@ int machine_kexec_prepare(struct kimage *image)
 	__be32 header;
 	int i, err;
 
+	image->arch.kernel_r2 = image->start - KEXEC_ARM_ZIMAGE_OFFSET
+				     + KEXEC_ARM_ATAGS_OFFSET;
+
 	/*
 	 * Validate that if the current HW supports SMP, then the SW supports
 	 * and implements CPU hotplug for the current HW. If not, we won't be
@@ -66,8 +68,8 @@ int machine_kexec_prepare(struct kimage *image)
 		if (err)
 			return err;
 
-		if (be32_to_cpu(header) == OF_DT_HEADER)
-			dt_mem = current_segment->mem;
+		if (header == cpu_to_be32(OF_DT_HEADER))
+			image->arch.kernel_r2 = current_segment->mem;
 	}
 	return 0;
 }
@@ -165,8 +167,7 @@ void machine_kexec(struct kimage *image)
 	kexec_start_address = image->start;
 	kexec_indirection_page = page_list;
 	kexec_mach_type = machine_arch_type;
-	kexec_boot_atags = dt_mem ?: image->start - KEXEC_ARM_ZIMAGE_OFFSET
-				     + KEXEC_ARM_ATAGS_OFFSET;
+	kexec_boot_atags = image->arch.kernel_r2;
 
 	/* copy our kernel relocation code to the control code page */
 	reboot_entry = fncpy(reboot_code_buffer,
diff --git a/arch/arm/kernel/setup.c b/arch/arm/kernel/setup.c
index 4e80bf7420d4..8e9a3e40d949 100644
--- a/arch/arm/kernel/setup.c
+++ b/arch/arm/kernel/setup.c
@@ -987,6 +987,9 @@ static void __init reserve_crashkernel(void)
 
 	if (crash_base <= 0) {
 		unsigned long long crash_max = idmap_to_phys((u32)~0);
+		unsigned long long lowmem_max = __pa(high_memory - 1) + 1;
+		if (crash_max > lowmem_max)
+			crash_max = lowmem_max;
 		crash_base = memblock_find_in_range(CRASH_ALIGN, crash_max,
 						    crash_size, CRASH_ALIGN);
 		if (!crash_base) {
diff --git a/arch/arm/kernel/signal.c b/arch/arm/kernel/signal.c
index 7b8f2141427b..5814298ef0b7 100644
--- a/arch/arm/kernel/signal.c
+++ b/arch/arm/kernel/signal.c
@@ -40,8 +40,10 @@ static int preserve_crunch_context(struct crunch_sigframe __user *frame)
 	return __copy_to_user(frame, kframe, sizeof(*frame));
 }
 
-static int restore_crunch_context(struct crunch_sigframe __user *frame)
+static int restore_crunch_context(char __user **auxp)
 {
+	struct crunch_sigframe __user *frame =
+		(struct crunch_sigframe __user *)*auxp;
 	char kbuf[sizeof(*frame) + 8];
 	struct crunch_sigframe *kframe;
 
@@ -52,6 +54,7 @@ static int restore_crunch_context(struct crunch_sigframe __user *frame)
 	if (kframe->magic != CRUNCH_MAGIC ||
 	    kframe->size != CRUNCH_STORAGE_SIZE)
 		return -1;
+	*auxp += CRUNCH_STORAGE_SIZE;
 	crunch_task_restore(current_thread_info(), &kframe->storage);
 	return 0;
 }
@@ -59,21 +62,39 @@ static int restore_crunch_context(struct crunch_sigframe __user *frame)
 
 #ifdef CONFIG_IWMMXT
 
-static int preserve_iwmmxt_context(struct iwmmxt_sigframe *frame)
+static int preserve_iwmmxt_context(struct iwmmxt_sigframe __user *frame)
 {
 	char kbuf[sizeof(*frame) + 8];
 	struct iwmmxt_sigframe *kframe;
+	int err = 0;
 
 	/* the iWMMXt context must be 64 bit aligned */
 	kframe = (struct iwmmxt_sigframe *)((unsigned long)(kbuf + 8) & ~7);
-	kframe->magic = IWMMXT_MAGIC;
-	kframe->size = IWMMXT_STORAGE_SIZE;
-	iwmmxt_task_copy(current_thread_info(), &kframe->storage);
-	return __copy_to_user(frame, kframe, sizeof(*frame));
+
+	if (test_thread_flag(TIF_USING_IWMMXT)) {
+		kframe->magic = IWMMXT_MAGIC;
+		kframe->size = IWMMXT_STORAGE_SIZE;
+		iwmmxt_task_copy(current_thread_info(), &kframe->storage);
+
+		err = __copy_to_user(frame, kframe, sizeof(*frame));
+	} else {
+		/*
+		 * For bug-compatibility with older kernels, some space
+		 * has to be reserved for iWMMXt even if it's not used.
+		 * Set the magic and size appropriately so that properly
+		 * written userspace can skip it reliably:
+		 */
+		__put_user_error(DUMMY_MAGIC, &frame->magic, err);
+		__put_user_error(IWMMXT_STORAGE_SIZE, &frame->size, err);
+	}
+
+	return err;
 }
 
-static int restore_iwmmxt_context(struct iwmmxt_sigframe *frame)
+static int restore_iwmmxt_context(char __user **auxp)
 {
+	struct iwmmxt_sigframe __user *frame =
+		(struct iwmmxt_sigframe __user *)*auxp;
 	char kbuf[sizeof(*frame) + 8];
 	struct iwmmxt_sigframe *kframe;
 
@@ -81,10 +102,28 @@ static int restore_iwmmxt_context(struct iwmmxt_sigframe *frame)
 	kframe = (struct iwmmxt_sigframe *)((unsigned long)(kbuf + 8) & ~7);
 	if (__copy_from_user(kframe, frame, sizeof(*frame)))
 		return -1;
-	if (kframe->magic != IWMMXT_MAGIC ||
-	    kframe->size != IWMMXT_STORAGE_SIZE)
+
+	/*
+	 * For non-iWMMXt threads: a single iwmmxt_sigframe-sized dummy
+	 * block is discarded for compatibility with setup_sigframe() if
+	 * present, but we don't mandate its presence.  If some other
+	 * magic is here, it's not for us:
+	 */
+	if (!test_thread_flag(TIF_USING_IWMMXT) &&
+	    kframe->magic != DUMMY_MAGIC)
+		return 0;
+
+	if (kframe->size != IWMMXT_STORAGE_SIZE)
 		return -1;
-	iwmmxt_task_restore(current_thread_info(), &kframe->storage);
+
+	if (test_thread_flag(TIF_USING_IWMMXT)) {
+		if (kframe->magic != IWMMXT_MAGIC)
+			return -1;
+
+		iwmmxt_task_restore(current_thread_info(), &kframe->storage);
+	}
+
+	*auxp += IWMMXT_STORAGE_SIZE;
 	return 0;
 }
 
@@ -107,8 +146,10 @@ static int preserve_vfp_context(struct vfp_sigframe __user *frame)
 	return vfp_preserve_user_clear_hwstate(&frame->ufp, &frame->ufp_exc);
 }
 
-static int restore_vfp_context(struct vfp_sigframe __user *frame)
+static int restore_vfp_context(char __user **auxp)
 {
+	struct vfp_sigframe __user *frame =
+		(struct vfp_sigframe __user *)*auxp;
 	unsigned long magic;
 	unsigned long size;
 	int err = 0;
@@ -121,6 +162,7 @@ static int restore_vfp_context(struct vfp_sigframe __user *frame)
 	if (magic != VFP_MAGIC || size != VFP_STORAGE_SIZE)
 		return -EINVAL;
 
+	*auxp += size;
 	return vfp_restore_user_hwstate(&frame->ufp, &frame->ufp_exc);
 }
 
@@ -141,7 +183,7 @@ struct rt_sigframe {
 
 static int restore_sigframe(struct pt_regs *regs, struct sigframe __user *sf)
 {
-	struct aux_sigframe __user *aux;
+	char __user *aux;
 	sigset_t set;
 	int err;
 
@@ -169,18 +211,18 @@ static int restore_sigframe(struct pt_regs *regs, struct sigframe __user *sf)
 
 	err |= !valid_user_regs(regs);
 
-	aux = (struct aux_sigframe __user *) sf->uc.uc_regspace;
+	aux = (char __user *) sf->uc.uc_regspace;
 #ifdef CONFIG_CRUNCH
 	if (err == 0)
-		err |= restore_crunch_context(&aux->crunch);
+		err |= restore_crunch_context(&aux);
 #endif
 #ifdef CONFIG_IWMMXT
-	if (err == 0 && test_thread_flag(TIF_USING_IWMMXT))
-		err |= restore_iwmmxt_context(&aux->iwmmxt);
+	if (err == 0)
+		err |= restore_iwmmxt_context(&aux);
 #endif
 #ifdef CONFIG_VFP
 	if (err == 0)
-		err |= restore_vfp_context(&aux->vfp);
+		err |= restore_vfp_context(&aux);
 #endif
 
 	return err;
@@ -286,7 +328,7 @@ setup_sigframe(struct sigframe __user *sf, struct pt_regs *regs, sigset_t *set)
 		err |= preserve_crunch_context(&aux->crunch);
 #endif
 #ifdef CONFIG_IWMMXT
-	if (err == 0 && test_thread_flag(TIF_USING_IWMMXT))
+	if (err == 0)
 		err |= preserve_iwmmxt_context(&aux->iwmmxt);
 #endif
 #ifdef CONFIG_VFP
diff --git a/arch/arm/mach-davinci/board-da850-evm.c b/arch/arm/mach-davinci/board-da850-evm.c
index b5625d009288..e568c8c6f69c 100644
--- a/arch/arm/mach-davinci/board-da850-evm.c
+++ b/arch/arm/mach-davinci/board-da850-evm.c
@@ -1166,7 +1166,7 @@ static struct tvp514x_platform_data tvp5146_pdata = {
 
 #define TVP514X_STD_ALL (V4L2_STD_NTSC | V4L2_STD_PAL)
 
-static const struct vpif_input da850_ch0_inputs[] = {
+static struct vpif_input da850_ch0_inputs[] = {
 	{
 		.input = {
 			.index = 0,
@@ -1181,7 +1181,7 @@ static const struct vpif_input da850_ch0_inputs[] = {
 	},
 };
 
-static const struct vpif_input da850_ch1_inputs[] = {
+static struct vpif_input da850_ch1_inputs[] = {
 	{
 		.input = {
 			.index = 0,
diff --git a/arch/arm/mach-davinci/clock.c b/arch/arm/mach-davinci/clock.c
index f5dce9b4e617..f77a4f766050 100644
--- a/arch/arm/mach-davinci/clock.c
+++ b/arch/arm/mach-davinci/clock.c
@@ -218,6 +218,15 @@ int clk_set_parent(struct clk *clk, struct clk *parent)
 }
 EXPORT_SYMBOL(clk_set_parent);
 
+struct clk *clk_get_parent(struct clk *clk)
+{
+	if (!clk)
+		return NULL;
+
+	return clk->parent;
+}
+EXPORT_SYMBOL(clk_get_parent);
+
 int clk_register(struct clk *clk)
 {
 	if (clk == NULL || IS_ERR(clk))
diff --git a/arch/arm/mach-ep93xx/clock.c b/arch/arm/mach-ep93xx/clock.c
index 39ef3b613912..beec5f16443a 100644
--- a/arch/arm/mach-ep93xx/clock.c
+++ b/arch/arm/mach-ep93xx/clock.c
@@ -475,6 +475,26 @@ int clk_set_rate(struct clk *clk, unsigned long rate)
 }
 EXPORT_SYMBOL(clk_set_rate);
 
+long clk_round_rate(struct clk *clk, unsigned long rate)
+{
+	WARN_ON(clk);
+	return 0;
+}
+EXPORT_SYMBOL(clk_round_rate);
+
+int clk_set_parent(struct clk *clk, struct clk *parent)
+{
+	WARN_ON(clk);
+	return 0;
+}
+EXPORT_SYMBOL(clk_set_parent);
+
+struct clk *clk_get_parent(struct clk *clk)
+{
+	return clk->parent;
+}
+EXPORT_SYMBOL(clk_get_parent);
+
 
 static char fclk_divisors[] = { 1, 2, 4, 8, 16, 1, 1, 1 };
 static char hclk_divisors[] = { 1, 2, 4, 5, 6, 8, 16, 32 };
diff --git a/arch/arm/mach-ixp4xx/include/mach/io.h b/arch/arm/mach-ixp4xx/include/mach/io.h
index 7a0c13bf4269..844e8ac593e2 100644
--- a/arch/arm/mach-ixp4xx/include/mach/io.h
+++ b/arch/arm/mach-ixp4xx/include/mach/io.h
@@ -95,8 +95,10 @@ static inline void __indirect_writeb(u8 value, volatile void __iomem *p)
 }
 
 static inline void __indirect_writesb(volatile void __iomem *bus_addr,
-				      const u8 *vaddr, int count)
+				      const void *p, int count)
 {
+	const u8 *vaddr = p;
+
 	while (count--)
 		writeb(*vaddr++, bus_addr);
 }
@@ -118,8 +120,10 @@ static inline void __indirect_writew(u16 value, volatile void __iomem *p)
 }
 
 static inline void __indirect_writesw(volatile void __iomem *bus_addr,
-				      const u16 *vaddr, int count)
+				      const void *p, int count)
 {
+	const u16 *vaddr = p;
+
 	while (count--)
 		writew(*vaddr++, bus_addr);
 }
@@ -137,8 +141,9 @@ static inline void __indirect_writel(u32 value, volatile void __iomem *p)
 }
 
 static inline void __indirect_writesl(volatile void __iomem *bus_addr,
-				      const u32 *vaddr, int count)
+				      const void *p, int count)
 {
+	const u32 *vaddr = p;
 	while (count--)
 		writel(*vaddr++, bus_addr);
 }
@@ -160,8 +165,10 @@ static inline u8 __indirect_readb(const volatile void __iomem *p)
 }
 
 static inline void __indirect_readsb(const volatile void __iomem *bus_addr,
-				     u8 *vaddr, u32 count)
+				     void *p, u32 count)
 {
+	u8 *vaddr = p;
+
 	while (count--)
 		*vaddr++ = readb(bus_addr);
 }
@@ -183,8 +190,10 @@ static inline u16 __indirect_readw(const volatile void __iomem *p)
 }
 
 static inline void __indirect_readsw(const volatile void __iomem *bus_addr,
-				     u16 *vaddr, u32 count)
+				     void *p, u32 count)
 {
+	u16 *vaddr = p;
+
 	while (count--)
 		*vaddr++ = readw(bus_addr);
 }
@@ -204,8 +213,10 @@ static inline u32 __indirect_readl(const volatile void __iomem *p)
 }
 
 static inline void __indirect_readsl(const volatile void __iomem *bus_addr,
-				     u32 *vaddr, u32 count)
+				     void *p, u32 count)
 {
+	u32 *vaddr = p;
+
 	while (count--)
 		*vaddr++ = readl(bus_addr);
 }
@@ -523,8 +534,15 @@ static inline void iowrite32_rep(void __iomem *addr, const void *vaddr,
 #endif
 }
 
-#define	ioport_map(port, nr)		((void __iomem*)(port + PIO_OFFSET))
-#define	ioport_unmap(addr)
+#define ioport_map(port, nr) ioport_map(port, nr)
+static inline void __iomem *ioport_map(unsigned long port, unsigned int nr)
+{
+	return ((void __iomem*)((port) + PIO_OFFSET));
+}
+#define	ioport_unmap(addr) ioport_unmap(addr)
+static inline void ioport_unmap(void __iomem *addr)
+{
+}
 #endif /* CONFIG_PCI */
 
 #endif /* __ASM_ARM_ARCH_IO_H */
diff --git a/arch/arm/mach-mmp/devices.c b/arch/arm/mach-mmp/devices.c
index 3330ac7cfbef..671c7a09ab3d 100644
--- a/arch/arm/mach-mmp/devices.c
+++ b/arch/arm/mach-mmp/devices.c
@@ -238,7 +238,7 @@ void pxa_usb_phy_deinit(void __iomem *phy_reg)
 #endif
 
 #if IS_ENABLED(CONFIG_USB_SUPPORT)
-static u64 usb_dma_mask = ~(u32)0;
+static u64 __maybe_unused usb_dma_mask = ~(u32)0;
 
 #if IS_ENABLED(CONFIG_USB_MV_UDC)
 struct resource pxa168_u2o_resources[] = {
diff --git a/arch/arm/mach-mvebu/platsmp.c b/arch/arm/mach-mvebu/platsmp.c
index e62273aacb43..4ffbbd217e82 100644
--- a/arch/arm/mach-mvebu/platsmp.c
+++ b/arch/arm/mach-mvebu/platsmp.c
@@ -211,7 +211,7 @@ static int mv98dx3236_resume_set_cpu_boot_addr(int hw_cpu, void *boot_addr)
 		return PTR_ERR(base);
 
 	writel(0, base + MV98DX3236_CPU_RESUME_CTRL_REG);
-	writel(virt_to_phys(boot_addr), base + MV98DX3236_CPU_RESUME_ADDR_REG);
+	writel(__pa_symbol(boot_addr), base + MV98DX3236_CPU_RESUME_ADDR_REG);
 
 	iounmap(base);
 
diff --git a/arch/arm/mach-omap1/board-ams-delta.c b/arch/arm/mach-omap1/board-ams-delta.c
index 6613a6ff5dbc..6cbc69c92913 100644
--- a/arch/arm/mach-omap1/board-ams-delta.c
+++ b/arch/arm/mach-omap1/board-ams-delta.c
@@ -510,6 +510,7 @@ static void __init ams_delta_init(void)
 static void modem_pm(struct uart_port *port, unsigned int state, unsigned old)
 {
 	struct modem_private_data *priv = port->private_data;
+	int ret;
 
 	if (IS_ERR(priv->regulator))
 		return;
@@ -518,9 +519,16 @@ static void modem_pm(struct uart_port *port, unsigned int state, unsigned old)
 		return;
 
 	if (state == 0)
-		regulator_enable(priv->regulator);
+		ret = regulator_enable(priv->regulator);
 	else if (old == 0)
-		regulator_disable(priv->regulator);
+		ret = regulator_disable(priv->regulator);
+	else
+		ret = 0;
+
+	if (ret)
+		dev_warn(port->dev,
+			 "ams_delta modem_pm: failed to %sable regulator: %d\n",
+			 state ? "dis" : "en", ret);
 }
 
 static struct plat_serial8250_port ams_delta_modem_ports[] = {
diff --git a/arch/arm/mach-omap1/board-osk.c b/arch/arm/mach-omap1/board-osk.c
index 4dfb99504810..95ac1929aede 100644
--- a/arch/arm/mach-omap1/board-osk.c
+++ b/arch/arm/mach-omap1/board-osk.c
@@ -441,13 +441,11 @@ static struct spi_board_info __initdata mistral_boardinfo[] = { {
 	.chip_select		= 0,
 } };
 
-#ifdef	CONFIG_PM
 static irqreturn_t
 osk_mistral_wake_interrupt(int irq, void *ignored)
 {
 	return IRQ_HANDLED;
 }
-#endif
 
 static void __init osk_mistral_init(void)
 {
@@ -515,7 +513,6 @@ static void __init osk_mistral_init(void)
 
 		gpio_direction_input(OMAP_MPUIO(2));
 		irq_set_irq_type(irq, IRQ_TYPE_EDGE_RISING);
-#ifdef	CONFIG_PM
 		/* share the IRQ in case someone wants to use the
 		 * button for more than wakeup from system sleep.
 		 */
@@ -529,7 +526,6 @@ static void __init osk_mistral_init(void)
 				ret);
 		} else
 			enable_irq_wake(irq);
-#endif
 	} else
 		printk(KERN_ERR "OSK+Mistral: wakeup button is awol\n");
 
diff --git a/arch/arm/mach-omap2/board-generic.c b/arch/arm/mach-omap2/board-generic.c
index dc9e34e670a2..b1e661bb5521 100644
--- a/arch/arm/mach-omap2/board-generic.c
+++ b/arch/arm/mach-omap2/board-generic.c
@@ -28,7 +28,7 @@ static const struct of_device_id omap_dt_match_table[] __initconst = {
 	{ }
 };
 
-static void __init omap_generic_init(void)
+static void __init __maybe_unused omap_generic_init(void)
 {
 	pdata_quirks_init(omap_dt_match_table);
 
diff --git a/arch/arm/mach-omap2/hsmmc.c b/arch/arm/mach-omap2/hsmmc.c
index be517b048762..5b614388d72f 100644
--- a/arch/arm/mach-omap2/hsmmc.c
+++ b/arch/arm/mach-omap2/hsmmc.c
@@ -32,120 +32,6 @@ static u16 control_devconf1_offset;
 
 #define HSMMC_NAME_LEN	9
 
-static void omap_hsmmc1_before_set_reg(struct device *dev,
-				       int power_on, int vdd)
-{
-	u32 reg, prog_io;
-	struct omap_hsmmc_platform_data *mmc = dev->platform_data;
-
-	if (mmc->remux)
-		mmc->remux(dev, power_on);
-
-	/*
-	 * Assume we power both OMAP VMMC1 (for CMD, CLK, DAT0..3) and the
-	 * card with Vcc regulator (from twl4030 or whatever).  OMAP has both
-	 * 1.8V and 3.0V modes, controlled by the PBIAS register.
-	 *
-	 * In 8-bit modes, OMAP VMMC1A (for DAT4..7) needs a supply, which
-	 * is most naturally TWL VSIM; those pins also use PBIAS.
-	 *
-	 * FIXME handle VMMC1A as needed ...
-	 */
-	if (power_on) {
-		if (cpu_is_omap2430()) {
-			reg = omap_ctrl_readl(OMAP243X_CONTROL_DEVCONF1);
-			if ((1 << vdd) >= MMC_VDD_30_31)
-				reg |= OMAP243X_MMC1_ACTIVE_OVERWRITE;
-			else
-				reg &= ~OMAP243X_MMC1_ACTIVE_OVERWRITE;
-			omap_ctrl_writel(reg, OMAP243X_CONTROL_DEVCONF1);
-		}
-
-		if (mmc->internal_clock) {
-			reg = omap_ctrl_readl(OMAP2_CONTROL_DEVCONF0);
-			reg |= OMAP2_MMCSDIO1ADPCLKISEL;
-			omap_ctrl_writel(reg, OMAP2_CONTROL_DEVCONF0);
-		}
-
-		reg = omap_ctrl_readl(control_pbias_offset);
-		if (cpu_is_omap3630()) {
-			/* Set MMC I/O to 52MHz */
-			prog_io = omap_ctrl_readl(OMAP343X_CONTROL_PROG_IO1);
-			prog_io |= OMAP3630_PRG_SDMMC1_SPEEDCTRL;
-			omap_ctrl_writel(prog_io, OMAP343X_CONTROL_PROG_IO1);
-		} else {
-			reg |= OMAP2_PBIASSPEEDCTRL0;
-		}
-		reg &= ~OMAP2_PBIASLITEPWRDNZ0;
-		omap_ctrl_writel(reg, control_pbias_offset);
-	} else {
-		reg = omap_ctrl_readl(control_pbias_offset);
-		reg &= ~OMAP2_PBIASLITEPWRDNZ0;
-		omap_ctrl_writel(reg, control_pbias_offset);
-	}
-}
-
-static void omap_hsmmc1_after_set_reg(struct device *dev, int power_on, int vdd)
-{
-	u32 reg;
-
-	/* 100ms delay required for PBIAS configuration */
-	msleep(100);
-
-	if (power_on) {
-		reg = omap_ctrl_readl(control_pbias_offset);
-		reg |= (OMAP2_PBIASLITEPWRDNZ0 | OMAP2_PBIASSPEEDCTRL0);
-		if ((1 << vdd) <= MMC_VDD_165_195)
-			reg &= ~OMAP2_PBIASLITEVMODE0;
-		else
-			reg |= OMAP2_PBIASLITEVMODE0;
-		omap_ctrl_writel(reg, control_pbias_offset);
-	} else {
-		reg = omap_ctrl_readl(control_pbias_offset);
-		reg |= (OMAP2_PBIASSPEEDCTRL0 | OMAP2_PBIASLITEPWRDNZ0 |
-			OMAP2_PBIASLITEVMODE0);
-		omap_ctrl_writel(reg, control_pbias_offset);
-	}
-}
-
-static void hsmmc2_select_input_clk_src(struct omap_hsmmc_platform_data *mmc)
-{
-	u32 reg;
-
-	reg = omap_ctrl_readl(control_devconf1_offset);
-	if (mmc->internal_clock)
-		reg |= OMAP2_MMCSDIO2ADPCLKISEL;
-	else
-		reg &= ~OMAP2_MMCSDIO2ADPCLKISEL;
-	omap_ctrl_writel(reg, control_devconf1_offset);
-}
-
-static void hsmmc2_before_set_reg(struct device *dev, int power_on, int vdd)
-{
-	struct omap_hsmmc_platform_data *mmc = dev->platform_data;
-
-	if (mmc->remux)
-		mmc->remux(dev, power_on);
-
-	if (power_on)
-		hsmmc2_select_input_clk_src(mmc);
-}
-
-static int am35x_hsmmc2_set_power(struct device *dev, int power_on, int vdd)
-{
-	struct omap_hsmmc_platform_data *mmc = dev->platform_data;
-
-	if (power_on)
-		hsmmc2_select_input_clk_src(mmc);
-
-	return 0;
-}
-
-static int nop_mmc_set_power(struct device *dev, int power_on, int vdd)
-{
-	return 0;
-}
-
 static int __init omap_hsmmc_pdata_init(struct omap2_hsmmc_info *c,
 					struct omap_hsmmc_platform_data *mmc)
 {
@@ -157,101 +43,11 @@ static int __init omap_hsmmc_pdata_init(struct omap2_hsmmc_info *c,
 		return -ENOMEM;
 	}
 
-	if (c->name)
-		strncpy(hc_name, c->name, HSMMC_NAME_LEN);
-	else
-		snprintf(hc_name, (HSMMC_NAME_LEN + 1), "mmc%islot%i",
-								c->mmc, 1);
+	snprintf(hc_name, (HSMMC_NAME_LEN + 1), "mmc%islot%i", c->mmc, 1);
 	mmc->name = hc_name;
 	mmc->caps = c->caps;
-	mmc->internal_clock = !c->ext_clock;
 	mmc->reg_offset = 0;
 
-	if (c->cover_only) {
-		/* detect if mobile phone cover removed */
-		mmc->gpio_cd = -EINVAL;
-		mmc->gpio_cod = c->gpio_cd;
-	} else {
-		/* card detect pin on the mmc socket itself */
-		mmc->gpio_cd = c->gpio_cd;
-		mmc->gpio_cod = -EINVAL;
-	}
-	mmc->gpio_wp = c->gpio_wp;
-
-	mmc->remux = c->remux;
-	mmc->init_card = c->init_card;
-
-	if (c->nonremovable)
-		mmc->nonremovable = 1;
-
-	/*
-	 * NOTE:  MMC slots should have a Vcc regulator set up.
-	 * This may be from a TWL4030-family chip, another
-	 * controllable regulator, or a fixed supply.
-	 *
-	 * temporary HACK: ocr_mask instead of fixed supply
-	 */
-	if (soc_is_am35xx())
-		mmc->ocr_mask = MMC_VDD_165_195 |
-					 MMC_VDD_26_27 |
-					 MMC_VDD_27_28 |
-					 MMC_VDD_29_30 |
-					 MMC_VDD_30_31 |
-					 MMC_VDD_31_32;
-	else
-		mmc->ocr_mask = c->ocr_mask;
-
-	if (!soc_is_am35xx())
-		mmc->features |= HSMMC_HAS_PBIAS;
-
-	switch (c->mmc) {
-	case 1:
-		if (mmc->features & HSMMC_HAS_PBIAS) {
-			/* on-chip level shifting via PBIAS0/PBIAS1 */
-			mmc->before_set_reg =
-					omap_hsmmc1_before_set_reg;
-			mmc->after_set_reg =
-					omap_hsmmc1_after_set_reg;
-		}
-
-		if (soc_is_am35xx())
-			mmc->set_power = nop_mmc_set_power;
-
-		/* OMAP3630 HSMMC1 supports only 4-bit */
-		if (cpu_is_omap3630() &&
-				(c->caps & MMC_CAP_8_BIT_DATA)) {
-			c->caps &= ~MMC_CAP_8_BIT_DATA;
-			c->caps |= MMC_CAP_4_BIT_DATA;
-			mmc->caps = c->caps;
-		}
-		break;
-	case 2:
-		if (soc_is_am35xx())
-			mmc->set_power = am35x_hsmmc2_set_power;
-
-		if (c->ext_clock)
-			c->transceiver = 1;
-		if (c->transceiver && (c->caps & MMC_CAP_8_BIT_DATA)) {
-			c->caps &= ~MMC_CAP_8_BIT_DATA;
-			c->caps |= MMC_CAP_4_BIT_DATA;
-		}
-		if (mmc->features & HSMMC_HAS_PBIAS) {
-			/* off-chip level shifting, or none */
-			mmc->before_set_reg = hsmmc2_before_set_reg;
-			mmc->after_set_reg = NULL;
-		}
-		break;
-	case 3:
-	case 4:
-	case 5:
-		mmc->before_set_reg = NULL;
-		mmc->after_set_reg = NULL;
-		break;
-	default:
-		pr_err("MMC%d configuration not supported!\n", c->mmc);
-		kfree(hc_name);
-		return -ENODEV;
-	}
 	return 0;
 }
 
@@ -260,7 +56,6 @@ static int omap_hsmmc_done;
 void omap_hsmmc_late_init(struct omap2_hsmmc_info *c)
 {
 	struct platform_device *pdev;
-	struct omap_hsmmc_platform_data *mmc_pdata;
 	int res;
 
 	if (omap_hsmmc_done != 1)
@@ -269,32 +64,12 @@ void omap_hsmmc_late_init(struct omap2_hsmmc_info *c)
 	omap_hsmmc_done++;
 
 	for (; c->mmc; c++) {
-		if (!c->deferred)
-			continue;
-
 		pdev = c->pdev;
 		if (!pdev)
 			continue;
-
-		mmc_pdata = pdev->dev.platform_data;
-		if (!mmc_pdata)
-			continue;
-
-		if (c->cover_only) {
-			/* detect if mobile phone cover removed */
-			mmc_pdata->gpio_cd = -EINVAL;
-			mmc_pdata->gpio_cod = c->gpio_cd;
-		} else {
-			/* card detect pin on the mmc socket itself */
-			mmc_pdata->gpio_cd = c->gpio_cd;
-			mmc_pdata->gpio_cod = -EINVAL;
-		}
-		mmc_pdata->gpio_wp = c->gpio_wp;
-
 		res = omap_device_register(pdev);
 		if (res)
-			pr_err("Could not late init MMC %s\n",
-			       c->name);
+			pr_err("Could not late init MMC\n");
 	}
 }
 
@@ -336,13 +111,6 @@ static void __init omap_hsmmc_init_one(struct omap2_hsmmc_info *hsmmcinfo,
 	if (oh->dev_attr != NULL) {
 		mmc_dev_attr = oh->dev_attr;
 		mmc_data->controller_flags = mmc_dev_attr->flags;
-		/*
-		 * erratum 2.1.1.128 doesn't apply if board has
-		 * a transceiver is attached
-		 */
-		if (hsmmcinfo->transceiver)
-			mmc_data->controller_flags &=
-				~OMAP_HSMMC_BROKEN_MULTIBLOCK_READ;
 	}
 
 	pdev = platform_device_alloc(name, ctrl_nr - 1);
@@ -367,9 +135,6 @@ static void __init omap_hsmmc_init_one(struct omap2_hsmmc_info *hsmmcinfo,
 
 	hsmmcinfo->pdev = pdev;
 
-	if (hsmmcinfo->deferred)
-		goto free_mmc;
-
 	res = omap_device_register(pdev);
 	if (res) {
 		pr_err("Could not register od for %s\n", name);
diff --git a/arch/arm/mach-omap2/hsmmc.h b/arch/arm/mach-omap2/hsmmc.h
index 69b619ddc765..af9af5094ec3 100644
--- a/arch/arm/mach-omap2/hsmmc.h
+++ b/arch/arm/mach-omap2/hsmmc.h
@@ -12,18 +12,9 @@ struct omap2_hsmmc_info {
 	u8	mmc;		/* controller 1/2/3 */
 	u32	caps;		/* 4/8 wires and any additional host
 				 * capabilities OR'd (ref. linux/mmc/host.h) */
-	bool	transceiver;	/* MMC-2 option */
-	bool	ext_clock;	/* use external pin for input clock */
-	bool	cover_only;	/* No card detect - just cover switch */
-	bool	nonremovable;	/* Nonremovable e.g. eMMC */
-	bool	deferred;	/* mmc needs a deferred probe */
 	int	gpio_cd;	/* or -EINVAL */
 	int	gpio_wp;	/* or -EINVAL */
-	char	*name;		/* or NULL for default */
 	struct platform_device *pdev;	/* mmc controller instance */
-	int	ocr_mask;	/* temporary HACK */
-	/* Remux (pad configuration) when powering on/off */
-	void (*remux)(struct device *dev, int power_on);
 	/* init some special card */
 	void (*init_card)(struct mmc_card *card);
 };
diff --git a/arch/arm/mach-omap2/io.c b/arch/arm/mach-omap2/io.c
index 1d739d1a0a65..1cd20e4d56b0 100644
--- a/arch/arm/mach-omap2/io.c
+++ b/arch/arm/mach-omap2/io.c
@@ -410,7 +410,7 @@ static int _set_hwmod_postsetup_state(struct omap_hwmod *oh, void *data)
 	return omap_hwmod_set_postsetup_state(oh, *(u8 *)data);
 }
 
-static void __init omap_hwmod_init_postsetup(void)
+static void __init __maybe_unused omap_hwmod_init_postsetup(void)
 {
 	u8 postsetup_state;
 
diff --git a/arch/arm/mach-omap2/pm34xx.c b/arch/arm/mach-omap2/pm34xx.c
index d44e0e2f1106..841ba19d64a6 100644
--- a/arch/arm/mach-omap2/pm34xx.c
+++ b/arch/arm/mach-omap2/pm34xx.c
@@ -486,7 +486,6 @@ int __init omap3_pm_init(void)
 	ret = request_irq(omap_prcm_event_to_irq("io"),
 		_prcm_int_handle_io, IRQF_SHARED | IRQF_NO_SUSPEND, "pm_io",
 		omap3_pm_init);
-	enable_irq(omap_prcm_event_to_irq("io"));
 
 	if (ret) {
 		pr_err("pm: Failed to request pm_io irq\n");
diff --git a/arch/arm/mach-omap2/prm3xxx.c b/arch/arm/mach-omap2/prm3xxx.c
index 382e236fbfd9..64f6451499a7 100644
--- a/arch/arm/mach-omap2/prm3xxx.c
+++ b/arch/arm/mach-omap2/prm3xxx.c
@@ -692,7 +692,6 @@ static int omap3xxx_prm_late_init(void)
 {
 	struct device_node *np;
 	int irq_num;
-	int ret;
 
 	if (!(prm_features & PRM_HAS_IO_WAKEUP))
 		return 0;
@@ -712,12 +711,8 @@ static int omap3xxx_prm_late_init(void)
 	}
 
 	omap3xxx_prm_enable_io_wakeup();
-	ret = omap_prcm_register_chain_handler(&omap3_prcm_irq_setup);
-	if (!ret)
-		irq_set_status_flags(omap_prcm_event_to_irq("io"),
-				     IRQ_NOAUTOEN);
 
-	return ret;
+	return omap_prcm_register_chain_handler(&omap3_prcm_irq_setup);
 }
 
 static void __exit omap3xxx_prm_exit(void)
diff --git a/arch/arm/mach-omap2/prm44xx.c b/arch/arm/mach-omap2/prm44xx.c
index 87e86a4a9ead..3ab5df1ce900 100644
--- a/arch/arm/mach-omap2/prm44xx.c
+++ b/arch/arm/mach-omap2/prm44xx.c
@@ -337,6 +337,27 @@ static void omap44xx_prm_reconfigure_io_chain(void)
 }
 
 /**
+ * omap44xx_prm_enable_io_wakeup - enable wakeup events from I/O wakeup latches
+ *
+ * Activates the I/O wakeup event latches and allows events logged by
+ * those latches to signal a wakeup event to the PRCM.  For I/O wakeups
+ * to occur, WAKEUPENABLE bits must be set in the pad mux registers, and
+ * omap44xx_prm_reconfigure_io_chain() must be called.  No return value.
+ */
+static void __init omap44xx_prm_enable_io_wakeup(void)
+{
+	s32 inst = omap4_prmst_get_prm_dev_inst();
+
+	if (inst == PRM_INSTANCE_UNKNOWN)
+		return;
+
+	omap4_prm_rmw_inst_reg_bits(OMAP4430_GLOBAL_WUEN_MASK,
+				    OMAP4430_GLOBAL_WUEN_MASK,
+				    inst,
+				    omap4_prcm_irq_setup.pm_ctrl);
+}
+
+/**
  * omap44xx_prm_read_reset_sources - return the last SoC reset source
  *
  * Return a u32 representing the last reset sources of the SoC.  The
@@ -668,6 +689,8 @@ struct pwrdm_ops omap4_pwrdm_operations = {
 	.pwrdm_has_voltdm	= omap4_check_vcvp,
 };
 
+static int omap44xx_prm_late_init(void);
+
 /*
  * XXX document
  */
@@ -675,6 +698,7 @@ static struct prm_ll_data omap44xx_prm_ll_data = {
 	.read_reset_sources = &omap44xx_prm_read_reset_sources,
 	.was_any_context_lost_old = &omap44xx_prm_was_any_context_lost_old,
 	.clear_context_loss_flags_old = &omap44xx_prm_clear_context_loss_flags_old,
+	.late_init = &omap44xx_prm_late_init,
 	.assert_hardreset	= omap4_prminst_assert_hardreset,
 	.deassert_hardreset	= omap4_prminst_deassert_hardreset,
 	.is_hardreset_asserted	= omap4_prminst_is_hardreset_asserted,
@@ -711,6 +735,37 @@ int __init omap44xx_prm_init(const struct omap_prcm_init_data *data)
 	return prm_register(&omap44xx_prm_ll_data);
 }
 
+static int omap44xx_prm_late_init(void)
+{
+	int irq_num;
+
+	if (!(prm_features & PRM_HAS_IO_WAKEUP))
+		return 0;
+
+	irq_num = of_irq_get(prm_init_data->np, 0);
+	/*
+	 * Already have OMAP4 IRQ num. For all other platforms, we need
+	 * IRQ numbers from DT
+	 */
+	if (irq_num < 0 && !(prm_init_data->flags & PRM_IRQ_DEFAULT)) {
+		if (irq_num == -EPROBE_DEFER)
+			return irq_num;
+
+		/* Have nothing to do */
+		return 0;
+	}
+
+	/* Once OMAP4 DT is filled as well */
+	if (irq_num >= 0) {
+		omap4_prcm_irq_setup.irq = irq_num;
+		omap4_prcm_irq_setup.xlate_irq = NULL;
+	}
+
+	omap44xx_prm_enable_io_wakeup();
+
+	return omap_prcm_register_chain_handler(&omap4_prcm_irq_setup);
+}
+
 static void __exit omap44xx_prm_exit(void)
 {
 	prm_unregister(&omap44xx_prm_ll_data);
diff --git a/arch/arm/mach-prima2/common.c b/arch/arm/mach-prima2/common.c
index 8cadb302a7d2..ffe05c27087e 100644
--- a/arch/arm/mach-prima2/common.c
+++ b/arch/arm/mach-prima2/common.c
@@ -15,7 +15,7 @@
 #include <linux/of_platform.h>
 #include "common.h"
 
-static void __init sirfsoc_init_late(void)
+static void __init __maybe_unused sirfsoc_init_late(void)
 {
 	sirfsoc_pm_init();
 }
diff --git a/arch/arm/mach-pxa/Kconfig b/arch/arm/mach-pxa/Kconfig
index 76fbc115ec33..ce7d97babb0f 100644
--- a/arch/arm/mach-pxa/Kconfig
+++ b/arch/arm/mach-pxa/Kconfig
@@ -566,6 +566,7 @@ config MACH_ICONTROL
 config ARCH_PXA_ESERIES
 	bool "PXA based Toshiba e-series PDAs"
 	select FB_W100
+	select FB
 	select PXA25x
 
 config MACH_E330
diff --git a/arch/arm/mach-pxa/include/mach/mtd-xip.h b/arch/arm/mach-pxa/include/mach/mtd-xip.h
index 990d2bf2fb45..9bf4ea6a6f74 100644
--- a/arch/arm/mach-pxa/include/mach/mtd-xip.h
+++ b/arch/arm/mach-pxa/include/mach/mtd-xip.h
@@ -17,11 +17,15 @@
 
 #include <mach/regs-ost.h>
 
-#define xip_irqpending()	(ICIP & ICMR)
+/* restored July 2017, this did not build since 2011! */
+
+#define ICIP			io_p2v(0x40d00000)
+#define ICMR			io_p2v(0x40d00004)
+#define xip_irqpending()	(readl(ICIP) & readl(ICMR))
 
 /* we sample OSCR and convert desired delta to usec (1/4 ~= 1000000/3686400) */
-#define xip_currtime()		(OSCR)
-#define xip_elapsed_since(x)	(signed)((OSCR - (x)) / 4)
+#define xip_currtime()		readl(OSCR)
+#define xip_elapsed_since(x)	(signed)((readl(OSCR) - (x)) / 4)
 
 /*
  * xip_cpu_idle() is used when waiting for a delay equal or larger than
diff --git a/arch/arm/mach-rpc/include/mach/hardware.h b/arch/arm/mach-rpc/include/mach/hardware.h
index aa79fa47373a..622d4e5df029 100644
--- a/arch/arm/mach-rpc/include/mach/hardware.h
+++ b/arch/arm/mach-rpc/include/mach/hardware.h
@@ -25,8 +25,8 @@
  *  *_SIZE  is the size of the region
  *  *_BASE  is the virtual address
  */
-#define RAM_SIZE		0x10000000
-#define RAM_START		0x10000000
+#define RPC_RAM_SIZE		0x10000000
+#define RPC_RAM_START		0x10000000
 
 #define EASI_SIZE		0x08000000	/* EASI I/O */
 #define EASI_START		0x08000000
diff --git a/arch/arm/mach-sa1100/clock.c b/arch/arm/mach-sa1100/clock.c
index 0db46895c82a..7d52cd97d96e 100644
--- a/arch/arm/mach-sa1100/clock.c
+++ b/arch/arm/mach-sa1100/clock.c
@@ -35,6 +35,31 @@ struct clk clk_##_name = {				\
 
 static DEFINE_SPINLOCK(clocks_lock);
 
+/* Dummy clk routine to build generic kernel parts that may be using them */
+long clk_round_rate(struct clk *clk, unsigned long rate)
+{
+	return clk_get_rate(clk);
+}
+EXPORT_SYMBOL(clk_round_rate);
+
+int clk_set_rate(struct clk *clk, unsigned long rate)
+{
+	return 0;
+}
+EXPORT_SYMBOL(clk_set_rate);
+
+int clk_set_parent(struct clk *clk, struct clk *parent)
+{
+	return 0;
+}
+EXPORT_SYMBOL(clk_set_parent);
+
+struct clk *clk_get_parent(struct clk *clk)
+{
+	return NULL;
+}
+EXPORT_SYMBOL(clk_get_parent);
+
 static void clk_gpio27_enable(struct clk *clk)
 {
 	/*
diff --git a/arch/arm/mach-sa1100/include/mach/mtd-xip.h b/arch/arm/mach-sa1100/include/mach/mtd-xip.h
index b3d684098fbf..cb76096a2e36 100644
--- a/arch/arm/mach-sa1100/include/mach/mtd-xip.h
+++ b/arch/arm/mach-sa1100/include/mach/mtd-xip.h
@@ -20,7 +20,7 @@
 #define xip_irqpending()	(ICIP & ICMR)
 
 /* we sample OSCR and convert desired delta to usec (1/4 ~= 1000000/3686400) */
-#define xip_currtime()		(OSCR)
-#define xip_elapsed_since(x)	(signed)((OSCR - (x)) / 4)
+#define xip_currtime()		readl_relaxed(OSCR)
+#define xip_elapsed_since(x)	(signed)((readl_relaxed(OSCR) - (x)) / 4)
 
 #endif /* __ARCH_SA1100_MTD_XIP_H__ */
diff --git a/arch/arm/mach-sa1100/jornada720_ssp.c b/arch/arm/mach-sa1100/jornada720_ssp.c
index b143c4659346..7fc11a3c17b4 100644
--- a/arch/arm/mach-sa1100/jornada720_ssp.c
+++ b/arch/arm/mach-sa1100/jornada720_ssp.c
@@ -33,7 +33,7 @@ static unsigned long jornada_ssp_flags;
  * we need to reverse all data we receive from the mcu due to its physical location
  * returns : 01110111 -> 11101110
  */
-u8 inline jornada_ssp_reverse(u8 byte)
+inline u8 jornada_ssp_reverse(u8 byte)
 {
 	return
 		((0x80 & byte) >> 7) |
diff --git a/arch/arm/mach-shmobile/regulator-quirk-rcar-gen2.c b/arch/arm/mach-shmobile/regulator-quirk-rcar-gen2.c
index 73e3adbc1330..44438f344dc8 100644
--- a/arch/arm/mach-shmobile/regulator-quirk-rcar-gen2.c
+++ b/arch/arm/mach-shmobile/regulator-quirk-rcar-gen2.c
@@ -67,8 +67,12 @@ static int regulator_quirk_notify(struct notifier_block *nb,
 {
 	struct device *dev = data;
 	struct i2c_client *client;
+	static bool done;
 	u32 mon;
 
+	if (done)
+		return 0;
+
 	mon = ioread32(irqc + IRQC_MONITOR);
 	dev_dbg(dev, "%s: %ld, IRQC_MONITOR = 0x%x\n", __func__, action, mon);
 	if (mon & REGULATOR_IRQ_MASK)
@@ -99,7 +103,7 @@ static int regulator_quirk_notify(struct notifier_block *nb,
 remove:
 	dev_info(dev, "IRQ2 is not asserted, removing quirk\n");
 
-	bus_unregister_notifier(&i2c_bus_type, nb);
+	done = true;
 	iounmap(irqc);
 	return 0;
 }
diff --git a/arch/arm/mach-ux500/cpu-db8500.c b/arch/arm/mach-ux500/cpu-db8500.c
index 28083ef72819..71a34e8c345a 100644
--- a/arch/arm/mach-ux500/cpu-db8500.c
+++ b/arch/arm/mach-ux500/cpu-db8500.c
@@ -133,6 +133,7 @@ static irqreturn_t db8500_pmu_handler(int irq, void *dev, irq_handler_t handler)
 
 static struct arm_pmu_platdata db8500_pmu_platdata = {
 	.handle_irq		= db8500_pmu_handler,
+	.irq_flags		= IRQF_NOBALANCING | IRQF_NO_THREAD,
 };
 
 static struct of_dev_auxdata u8500_auxdata_lookup[] __initdata = {
diff --git a/arch/arm/mach-w90x900/clock.c b/arch/arm/mach-w90x900/clock.c
index ac6fd1a2cb59..3f93fac98d97 100644
--- a/arch/arm/mach-w90x900/clock.c
+++ b/arch/arm/mach-w90x900/clock.c
@@ -93,3 +93,32 @@ void nuc900_subclk_enable(struct clk *clk, int enable)
 
 	__raw_writel(clken, W90X900_VA_CLKPWR + SUBCLK);
 }
+
+/* dummy functions, should not be called */
+long clk_round_rate(struct clk *clk, unsigned long rate)
+{
+	WARN_ON(clk);
+	return 0;
+}
+EXPORT_SYMBOL(clk_round_rate);
+
+int clk_set_rate(struct clk *clk, unsigned long rate)
+{
+	WARN_ON(clk);
+	return 0;
+}
+EXPORT_SYMBOL(clk_set_rate);
+
+int clk_set_parent(struct clk *clk, struct clk *parent)
+{
+	WARN_ON(clk);
+	return 0;
+}
+EXPORT_SYMBOL(clk_set_parent);
+
+struct clk *clk_get_parent(struct clk *clk)
+{
+	WARN_ON(clk);
+	return NULL;
+}
+EXPORT_SYMBOL(clk_get_parent);
diff --git a/arch/arm/mm/dma-mapping-nommu.c b/arch/arm/mm/dma-mapping-nommu.c
index 90ee354d803e..6db5fc26d154 100644
--- a/arch/arm/mm/dma-mapping-nommu.c
+++ b/arch/arm/mm/dma-mapping-nommu.c
@@ -40,9 +40,21 @@ static void *arm_nommu_dma_alloc(struct device *dev, size_t size,
 
 {
 	const struct dma_map_ops *ops = &dma_noop_ops;
+	void *ret;
 
 	/*
-	 * We are here because:
+	 * Try generic allocator first if we are advertised that
+	 * consistency is not required.
+	 */
+
+	if (attrs & DMA_ATTR_NON_CONSISTENT)
+		return ops->alloc(dev, size, dma_handle, gfp, attrs);
+
+	ret = dma_alloc_from_global_coherent(size, dma_handle);
+
+	/*
+	 * dma_alloc_from_global_coherent() may fail because:
+	 *
 	 * - no consistent DMA region has been defined, so we can't
 	 *   continue.
 	 * - there is no space left in consistent DMA region, so we
@@ -50,11 +62,8 @@ static void *arm_nommu_dma_alloc(struct device *dev, size_t size,
 	 *   advertised that consistency is not required.
 	 */
 
-	if (attrs & DMA_ATTR_NON_CONSISTENT)
-		return ops->alloc(dev, size, dma_handle, gfp, attrs);
-
-	WARN_ON_ONCE(1);
-	return NULL;
+	WARN_ON_ONCE(ret == NULL);
+	return ret;
 }
 
 static void arm_nommu_dma_free(struct device *dev, size_t size,
@@ -63,14 +72,31 @@ static void arm_nommu_dma_free(struct device *dev, size_t size,
 {
 	const struct dma_map_ops *ops = &dma_noop_ops;
 
-	if (attrs & DMA_ATTR_NON_CONSISTENT)
+	if (attrs & DMA_ATTR_NON_CONSISTENT) {
 		ops->free(dev, size, cpu_addr, dma_addr, attrs);
-	else
-		WARN_ON_ONCE(1);
+	} else {
+		int ret = dma_release_from_global_coherent(get_order(size),
+							   cpu_addr);
+
+		WARN_ON_ONCE(ret == 0);
+	}
 
 	return;
 }
 
+static int arm_nommu_dma_mmap(struct device *dev, struct vm_area_struct *vma,
+			      void *cpu_addr, dma_addr_t dma_addr, size_t size,
+			      unsigned long attrs)
+{
+	int ret;
+
+	if (dma_mmap_from_global_coherent(vma, cpu_addr, size, &ret))
+		return ret;
+
+	return dma_common_mmap(dev, vma, cpu_addr, dma_addr, size);
+}
+
+
 static void __dma_page_cpu_to_dev(phys_addr_t paddr, size_t size,
 				  enum dma_data_direction dir)
 {
@@ -173,6 +199,7 @@ static void arm_nommu_dma_sync_sg_for_cpu(struct device *dev, struct scatterlist
 const struct dma_map_ops arm_nommu_dma_ops = {
 	.alloc			= arm_nommu_dma_alloc,
 	.free			= arm_nommu_dma_free,
+	.mmap			= arm_nommu_dma_mmap,
 	.map_page		= arm_nommu_dma_map_page,
 	.unmap_page		= arm_nommu_dma_unmap_page,
 	.map_sg			= arm_nommu_dma_map_sg,
diff --git a/arch/arm/mm/dma-mapping.c b/arch/arm/mm/dma-mapping.c
index e7380bafbfa6..fcf1473d6fed 100644
--- a/arch/arm/mm/dma-mapping.c
+++ b/arch/arm/mm/dma-mapping.c
@@ -851,7 +851,7 @@ static int __arm_dma_mmap(struct device *dev, struct vm_area_struct *vma,
 	unsigned long pfn = dma_to_pfn(dev, dma_addr);
 	unsigned long off = vma->vm_pgoff;
 
-	if (dma_mmap_from_coherent(dev, vma, cpu_addr, size, &ret))
+	if (dma_mmap_from_dev_coherent(dev, vma, cpu_addr, size, &ret))
 		return ret;
 
 	if (off < nr_pages && nr_vma_pages <= (nr_pages - off)) {
diff --git a/arch/arm64/Kconfig b/arch/arm64/Kconfig
index 8addb851ab5e..dfd908630631 100644
--- a/arch/arm64/Kconfig
+++ b/arch/arm64/Kconfig
@@ -12,6 +12,7 @@ config ARM64
 	select ARCH_HAS_DEVMEM_IS_ALLOWED
 	select ARCH_HAS_ACPI_TABLE_UPGRADE if ACPI
 	select ARCH_HAS_ELF_RANDOMIZE
+	select ARCH_HAS_FORTIFY_SOURCE
 	select ARCH_HAS_GCOV_PROFILE_ALL
 	select ARCH_HAS_GIGANTIC_PAGE if (MEMORY_ISOLATION && COMPACTION) || CMA
 	select ARCH_HAS_KCOV
diff --git a/arch/arm64/boot/dts/allwinner/sun50i-a64-bananapi-m64.dts b/arch/arm64/boot/dts/allwinner/sun50i-a64-bananapi-m64.dts
index 0d1f026d831a..ba2fde2909f9 100644
--- a/arch/arm64/boot/dts/allwinner/sun50i-a64-bananapi-m64.dts
+++ b/arch/arm64/boot/dts/allwinner/sun50i-a64-bananapi-m64.dts
@@ -51,6 +51,7 @@
 	compatible = "sinovoip,bananapi-m64", "allwinner,sun50i-a64";
 
 	aliases {
+		ethernet0 = &emac;
 		serial0 = &uart0;
 		serial1 = &uart1;
 	};
diff --git a/arch/arm64/boot/dts/allwinner/sun50i-a64-pine64.dts b/arch/arm64/boot/dts/allwinner/sun50i-a64-pine64.dts
index 08cda24ea194..827168bc22ed 100644
--- a/arch/arm64/boot/dts/allwinner/sun50i-a64-pine64.dts
+++ b/arch/arm64/boot/dts/allwinner/sun50i-a64-pine64.dts
@@ -51,6 +51,7 @@
 	compatible = "pine64,pine64", "allwinner,sun50i-a64";
 
 	aliases {
+		ethernet0 = &emac;
 		serial0 = &uart0;
 		serial1 = &uart1;
 		serial2 = &uart2;
diff --git a/arch/arm64/boot/dts/allwinner/sun50i-a64-sopine-baseboard.dts b/arch/arm64/boot/dts/allwinner/sun50i-a64-sopine-baseboard.dts
index 17eb1cc5bf6b..216e3a5dafae 100644
--- a/arch/arm64/boot/dts/allwinner/sun50i-a64-sopine-baseboard.dts
+++ b/arch/arm64/boot/dts/allwinner/sun50i-a64-sopine-baseboard.dts
@@ -53,6 +53,7 @@
 		     "allwinner,sun50i-a64";
 
 	aliases {
+		ethernet0 = &emac;
 		serial0 = &uart0;
 	};
 
diff --git a/arch/arm64/boot/dts/allwinner/sun50i-a64.dtsi b/arch/arm64/boot/dts/allwinner/sun50i-a64.dtsi
index 9d00622ce845..bd0f33b77f57 100644
--- a/arch/arm64/boot/dts/allwinner/sun50i-a64.dtsi
+++ b/arch/arm64/boot/dts/allwinner/sun50i-a64.dtsi
@@ -452,7 +452,7 @@
 		emac: ethernet@1c30000 {
 			compatible = "allwinner,sun50i-a64-emac";
 			syscon = <&syscon>;
-			reg = <0x01c30000 0x100>;
+			reg = <0x01c30000 0x10000>;
 			interrupts = <GIC_SPI 82 IRQ_TYPE_LEVEL_HIGH>;
 			interrupt-names = "macirq";
 			resets = <&ccu RST_BUS_EMAC>;
diff --git a/arch/arm64/boot/dts/allwinner/sun50i-h5.dtsi b/arch/arm64/boot/dts/allwinner/sun50i-h5.dtsi
index 732e2e06f503..d9a720bff05d 100644
--- a/arch/arm64/boot/dts/allwinner/sun50i-h5.dtsi
+++ b/arch/arm64/boot/dts/allwinner/sun50i-h5.dtsi
@@ -120,5 +120,8 @@
 };
 
 &pio {
+	interrupts = <GIC_SPI 11 IRQ_TYPE_LEVEL_HIGH>,
+		     <GIC_SPI 17 IRQ_TYPE_LEVEL_HIGH>,
+		     <GIC_SPI 23 IRQ_TYPE_LEVEL_HIGH>;
 	compatible = "allwinner,sun50i-h5-pinctrl";
 };
diff --git a/arch/arm64/boot/dts/amlogic/meson-gx.dtsi b/arch/arm64/boot/dts/amlogic/meson-gx.dtsi
index 35b8c88c3220..738ed689ff69 100644
--- a/arch/arm64/boot/dts/amlogic/meson-gx.dtsi
+++ b/arch/arm64/boot/dts/amlogic/meson-gx.dtsi
@@ -400,7 +400,7 @@
 			};
 
 			pwm_AO_ab: pwm@550 {
-				compatible = "amlogic,meson-gx-pwm", "amlogic,meson-gxbb-pwm";
+				compatible = "amlogic,meson-gx-ao-pwm", "amlogic,meson-gxbb-ao-pwm";
 				reg = <0x0 0x00550 0x0 0x10>;
 				#pwm-cells = <3>;
 				status = "disabled";
diff --git a/arch/arm64/boot/dts/amlogic/meson-gxl-s905x-khadas-vim.dts b/arch/arm64/boot/dts/amlogic/meson-gxl-s905x-khadas-vim.dts
index 72c5a9f64ca8..94567eb17875 100644
--- a/arch/arm64/boot/dts/amlogic/meson-gxl-s905x-khadas-vim.dts
+++ b/arch/arm64/boot/dts/amlogic/meson-gxl-s905x-khadas-vim.dts
@@ -109,8 +109,8 @@
 	status = "okay";
 	pinctrl-0 = <&pwm_ao_a_3_pins>, <&pwm_ao_b_pins>;
 	pinctrl-names = "default";
-	clocks = <&clkc CLKID_FCLK_DIV4>;
-	clock-names = "clkin0";
+	clocks = <&xtal> , <&xtal>;
+	clock-names = "clkin0", "clkin1" ;
 };
 
 &pwm_ef {
diff --git a/arch/arm64/boot/dts/amlogic/meson-gxl-s905x-libretech-cc.dts b/arch/arm64/boot/dts/amlogic/meson-gxl-s905x-libretech-cc.dts
index 890821d6e52b..266fbcf3e47f 100644
--- a/arch/arm64/boot/dts/amlogic/meson-gxl-s905x-libretech-cc.dts
+++ b/arch/arm64/boot/dts/amlogic/meson-gxl-s905x-libretech-cc.dts
@@ -10,12 +10,20 @@
 
 #include <dt-bindings/input/input.h>
 
-#include "meson-gxl-s905x-p212.dtsi"
+#include "meson-gxl-s905x.dtsi"
 
 / {
 	compatible = "libretech,cc", "amlogic,s905x", "amlogic,meson-gxl";
 	model = "Libre Technology CC";
 
+	aliases {
+		serial0 = &uart_AO;
+	};
+
+	chosen {
+		stdout-path = "serial0:115200n8";
+	};
+
 	cvbs-connector {
 		compatible = "composite-video-connector";
 
@@ -26,6 +34,11 @@
 		};
 	};
 
+	emmc_pwrseq: emmc-pwrseq {
+		compatible = "mmc-pwrseq-emmc";
+		reset-gpios = <&gpio BOOT_9 GPIO_ACTIVE_LOW>;
+	};
+
 	hdmi-connector {
 		compatible = "hdmi-connector";
 		type = "a";
@@ -53,6 +66,39 @@
 			linux,default-trigger = "heartbeat";
 		};
 	};
+
+	memory@0 {
+		device_type = "memory";
+		reg = <0x0 0x0 0x0 0x80000000>;
+	};
+
+	vcc_3v3: regulator-vcc_3v3 {
+		compatible = "regulator-fixed";
+		regulator-name = "VCC_3V3";
+		regulator-min-microvolt = <3300000>;
+		regulator-max-microvolt = <3300000>;
+	};
+
+	vcc_card: regulator-vcc-card {
+		compatible = "regulator-gpio";
+
+		regulator-name = "VCC_CARD";
+		regulator-min-microvolt = <1800000>;
+		regulator-max-microvolt = <3300000>;
+
+		gpios = <&gpio_ao GPIOAO_3 GPIO_ACTIVE_HIGH>;
+		gpios-states = <0>;
+
+		states = <3300000 0>,
+			 <1800000 1>;
+	};
+
+	vddio_boot: regulator-vddio_boot {
+		compatible = "regulator-fixed";
+		regulator-name = "VDDIO_BOOT";
+		regulator-min-microvolt = <3300000>;
+		regulator-max-microvolt = <3300000>;
+	};
 };
 
 &cvbs_vdac_port {
@@ -61,6 +107,16 @@
 	};
 };
 
+&ethmac {
+	status = "okay";
+};
+
+&ir {
+	status = "okay";
+	pinctrl-0 = <&remote_input_ao_pins>;
+	pinctrl-names = "default";
+};
+
 &hdmi_tx {
 	status = "okay";
 	pinctrl-0 = <&hdmi_hpd_pins>, <&hdmi_i2c_pins>;
@@ -73,20 +129,43 @@
 	};
 };
 
-/*
- * The following devices exists but are exposed on the general
- * purpose GPIO header. End user may well decide to use those pins
- * for another purpose
- */
+/* SD card */
+&sd_emmc_b {
+	status = "okay";
+	pinctrl-0 = <&sdcard_pins>;
+	pinctrl-names = "default";
+
+	bus-width = <4>;
+	cap-sd-highspeed;
+	max-frequency = <100000000>;
+	disable-wp;
+
+	cd-gpios = <&gpio CARD_6 GPIO_ACTIVE_HIGH>;
+	cd-inverted;
 
-&sd_emmc_a {
-	status = "disabled";
+	vmmc-supply = <&vcc_3v3>;
+	vqmmc-supply = <&vcc_card>;
 };
 
-&uart_A {
-	status = "disabled";
+/* eMMC */
+&sd_emmc_c {
+	status = "okay";
+	pinctrl-0 = <&emmc_pins>;
+	pinctrl-names = "default";
+
+	bus-width = <8>;
+	cap-mmc-highspeed;
+	max-frequency = <50000000>;
+	non-removable;
+	disable-wp;
+
+	mmc-pwrseq = <&emmc_pwrseq>;
+	vmmc-supply = <&vcc_3v3>;
+	vqmmc-supply = <&vddio_boot>;
 };
 
-&wifi32k {
-	status = "disabled";
+&uart_AO {
+	status = "okay";
+	pinctrl-0 = <&uart_ao_a_pins>;
+	pinctrl-names = "default";
 };
diff --git a/arch/arm64/boot/dts/marvell/armada-37xx.dtsi b/arch/arm64/boot/dts/marvell/armada-37xx.dtsi
index dbcc3d4e2ed5..51763d674050 100644
--- a/arch/arm64/boot/dts/marvell/armada-37xx.dtsi
+++ b/arch/arm64/boot/dts/marvell/armada-37xx.dtsi
@@ -219,7 +219,7 @@
 				reg = <0x18800 0x100>, <0x18C00 0x20>;
 				gpiosb: gpio {
 					#gpio-cells = <2>;
-					gpio-ranges = <&pinctrl_sb 0 0 29>;
+					gpio-ranges = <&pinctrl_sb 0 0 30>;
 					gpio-controller;
 					interrupts =
 					<GIC_SPI 160 IRQ_TYPE_LEVEL_HIGH>,
diff --git a/arch/arm64/boot/dts/marvell/armada-cp110-master.dtsi b/arch/arm64/boot/dts/marvell/armada-cp110-master.dtsi
index 726528ce54e9..4c68605675a8 100644
--- a/arch/arm64/boot/dts/marvell/armada-cp110-master.dtsi
+++ b/arch/arm64/boot/dts/marvell/armada-cp110-master.dtsi
@@ -270,6 +270,7 @@
 				interrupt-names = "mem", "ring0", "ring1",
 				"ring2", "ring3", "eip";
 				clocks = <&cpm_clk 1 26>;
+				dma-coherent;
 			};
 		};
 
diff --git a/arch/arm64/boot/dts/marvell/armada-cp110-slave.dtsi b/arch/arm64/boot/dts/marvell/armada-cp110-slave.dtsi
index 95f8e5f607f6..923f354b02f0 100644
--- a/arch/arm64/boot/dts/marvell/armada-cp110-slave.dtsi
+++ b/arch/arm64/boot/dts/marvell/armada-cp110-slave.dtsi
@@ -64,7 +64,7 @@
 				compatible = "marvell,armada-8k-rtc";
 				reg = <0x284000 0x20>, <0x284080 0x24>;
 				reg-names = "rtc", "rtc-soc";
-				interrupts = <GIC_SPI 71 IRQ_TYPE_LEVEL_HIGH>;
+				interrupts = <ICU_GRP_NSR 77 IRQ_TYPE_LEVEL_HIGH>;
 			};
 
 			cps_ethernet: ethernet@0 {
@@ -261,6 +261,7 @@
 				interrupt-names = "mem", "ring0", "ring1",
 						  "ring2", "ring3", "eip";
 				clocks = <&cps_clk 1 26>;
+				dma-coherent;
 				/*
 				 * The cryptographic engine found on the cp110
 				 * master is enabled by default at the SoC
diff --git a/arch/arm64/boot/dts/renesas/salvator-common.dtsi b/arch/arm64/boot/dts/renesas/salvator-common.dtsi
index aef35e0b685a..f903957da504 100644
--- a/arch/arm64/boot/dts/renesas/salvator-common.dtsi
+++ b/arch/arm64/boot/dts/renesas/salvator-common.dtsi
@@ -45,7 +45,7 @@
 		stdout-path = "serial0:115200n8";
 	};
 
-	audio_clkout: audio_clkout {
+	audio_clkout: audio-clkout {
 		/*
 		 * This is same as <&rcar_sound 0>
 		 * but needed to avoid cs2000/rcar_sound probe dead-lock
@@ -508,7 +508,7 @@
 
 	/* audio_clkout0/1/2/3 */
 	#clock-cells = <1>;
-	clock-frequency = <11289600 12288000>;
+	clock-frequency = <12288000 11289600>;
 
 	status = "okay";
 
diff --git a/arch/arm64/boot/dts/renesas/ulcb.dtsi b/arch/arm64/boot/dts/renesas/ulcb.dtsi
index b5c6ee07d7f9..d1a3f3b7a0ab 100644
--- a/arch/arm64/boot/dts/renesas/ulcb.dtsi
+++ b/arch/arm64/boot/dts/renesas/ulcb.dtsi
@@ -281,7 +281,7 @@
 
 	/* audio_clkout0/1/2/3 */
 	#clock-cells = <1>;
-	clock-frequency = <11289600 12288000>;
+	clock-frequency = <12288000 11289600>;
 
 	status = "okay";
 
diff --git a/arch/arm64/configs/defconfig b/arch/arm64/configs/defconfig
index 6c7d147eed54..b4ca115b3be1 100644
--- a/arch/arm64/configs/defconfig
+++ b/arch/arm64/configs/defconfig
@@ -476,6 +476,7 @@ CONFIG_QCOM_CLK_SMD_RPM=y
 CONFIG_MSM_GCC_8916=y
 CONFIG_MSM_GCC_8994=y
 CONFIG_MSM_MMCC_8996=y
+CONFIG_HWSPINLOCK=y
 CONFIG_HWSPINLOCK_QCOM=y
 CONFIG_ARM_MHU=y
 CONFIG_PLATFORM_MHU=y
diff --git a/arch/arm64/include/asm/Kbuild b/arch/arm64/include/asm/Kbuild
index a7a97a608033..f81c7b685fc6 100644
--- a/arch/arm64/include/asm/Kbuild
+++ b/arch/arm64/include/asm/Kbuild
@@ -6,41 +6,24 @@ generic-y += dma.h
 generic-y += dma-contiguous.h
 generic-y += early_ioremap.h
 generic-y += emergency-restart.h
-generic-y += errno.h
 generic-y += hw_irq.h
-generic-y += ioctl.h
-generic-y += ioctls.h
-generic-y += ipcbuf.h
 generic-y += irq_regs.h
 generic-y += kdebug.h
 generic-y += kmap_types.h
-generic-y += kvm_para.h
 generic-y += local.h
 generic-y += local64.h
 generic-y += mcs_spinlock.h
 generic-y += mm-arch-hooks.h
-generic-y += mman.h
-generic-y += msgbuf.h
 generic-y += msi.h
-generic-y += poll.h
 generic-y += preempt.h
-generic-y += resource.h
 generic-y += rwsem.h
 generic-y += segment.h
-generic-y += sembuf.h
 generic-y += serial.h
 generic-y += set_memory.h
-generic-y += shmbuf.h
 generic-y += simd.h
 generic-y += sizes.h
-generic-y += socket.h
-generic-y += sockios.h
-generic-y += swab.h
 generic-y += switch_to.h
-generic-y += termbits.h
-generic-y += termios.h
 generic-y += trace_clock.h
-generic-y += types.h
 generic-y += unaligned.h
 generic-y += user.h
 generic-y += vga.h
diff --git a/arch/arm64/include/asm/arch_timer.h b/arch/arm64/include/asm/arch_timer.h
index 74d08e44a651..a652ce0a5cb2 100644
--- a/arch/arm64/include/asm/arch_timer.h
+++ b/arch/arm64/include/asm/arch_timer.h
@@ -65,13 +65,13 @@ DECLARE_PER_CPU(const struct arch_timer_erratum_workaround *,
 	u64 _val;							\
 	if (needs_unstable_timer_counter_workaround()) {		\
 		const struct arch_timer_erratum_workaround *wa;		\
-		preempt_disable();					\
+		preempt_disable_notrace();				\
 		wa = __this_cpu_read(timer_unstable_counter_workaround); \
 		if (wa && wa->read_##reg)				\
 			_val = wa->read_##reg();			\
 		else							\
 			_val = read_sysreg(reg);			\
-		preempt_enable();					\
+		preempt_enable_notrace();				\
 	} else {							\
 		_val = read_sysreg(reg);				\
 	}								\
diff --git a/arch/arm64/include/asm/atomic_lse.h b/arch/arm64/include/asm/atomic_lse.h
index 99fa69c9c3cf..9ef0797380cb 100644
--- a/arch/arm64/include/asm/atomic_lse.h
+++ b/arch/arm64/include/asm/atomic_lse.h
@@ -435,7 +435,7 @@ static inline long atomic64_dec_if_positive(atomic64_t *v)
 	"	sub	x30, x30, %[ret]\n"
 	"	cbnz	x30, 1b\n"
 	"2:")
-	: [ret] "+&r" (x0), [v] "+Q" (v->counter)
+	: [ret] "+r" (x0), [v] "+Q" (v->counter)
 	:
 	: __LL_SC_CLOBBERS, "cc", "memory");
 
diff --git a/arch/arm64/include/asm/bug.h b/arch/arm64/include/asm/bug.h
index 366448eb0fb7..a02a57186f56 100644
--- a/arch/arm64/include/asm/bug.h
+++ b/arch/arm64/include/asm/bug.h
@@ -36,7 +36,7 @@
 #ifdef CONFIG_GENERIC_BUG
 
 #define __BUG_ENTRY(flags) 				\
-		".pushsection __bug_table,\"a\"\n\t"	\
+		".pushsection __bug_table,\"aw\"\n\t"	\
 		".align 2\n\t"				\
 	"0:	.long 1f - 0b\n\t"			\
 _BUGVERBOSE_LOCATION(__FILE__, __LINE__)		\
diff --git a/arch/arm64/include/asm/elf.h b/arch/arm64/include/asm/elf.h
index acae781f7359..3288c2b36731 100644
--- a/arch/arm64/include/asm/elf.h
+++ b/arch/arm64/include/asm/elf.h
@@ -114,10 +114,10 @@
 
 /*
  * This is the base location for PIE (ET_DYN with INTERP) loads. On
- * 64-bit, this is raised to 4GB to leave the entire 32-bit address
+ * 64-bit, this is above 4GB to leave the entire 32-bit address
  * space open for things that want to use the area for 32-bit pointers.
  */
-#define ELF_ET_DYN_BASE		0x100000000UL
+#define ELF_ET_DYN_BASE		(2 * TASK_SIZE_64 / 3)
 
 #ifndef __ASSEMBLY__
 
diff --git a/arch/arm64/include/asm/memory.h b/arch/arm64/include/asm/memory.h
index 32f82723338a..ef39dcb9ca6a 100644
--- a/arch/arm64/include/asm/memory.h
+++ b/arch/arm64/include/asm/memory.h
@@ -64,8 +64,10 @@
  * TASK_UNMAPPED_BASE - the lower boundary of the mmap VM area.
  */
 #define VA_BITS			(CONFIG_ARM64_VA_BITS)
-#define VA_START		(UL(0xffffffffffffffff) << VA_BITS)
-#define PAGE_OFFSET		(UL(0xffffffffffffffff) << (VA_BITS - 1))
+#define VA_START		(UL(0xffffffffffffffff) - \
+	(UL(1) << VA_BITS) + 1)
+#define PAGE_OFFSET		(UL(0xffffffffffffffff) - \
+	(UL(1) << (VA_BITS - 1)) + 1)
 #define KIMAGE_VADDR		(MODULES_END)
 #define MODULES_END		(MODULES_VADDR + MODULES_VSIZE)
 #define MODULES_VADDR		(VA_START + KASAN_SHADOW_SIZE)
diff --git a/arch/arm64/include/asm/stackprotector.h b/arch/arm64/include/asm/stackprotector.h
index fe5e287dc56b..b86a0865ddf1 100644
--- a/arch/arm64/include/asm/stackprotector.h
+++ b/arch/arm64/include/asm/stackprotector.h
@@ -30,6 +30,7 @@ static __always_inline void boot_init_stack_canary(void)
 	/* Try to get a semi random initial value. */
 	get_random_bytes(&canary, sizeof(canary));
 	canary ^= LINUX_VERSION_CODE;
+	canary &= CANARY_MASK;
 
 	current->stack_canary = canary;
 	__stack_chk_guard = current->stack_canary;
diff --git a/arch/arm64/include/asm/string.h b/arch/arm64/include/asm/string.h
index 2eb714c4639f..d0aa42907569 100644
--- a/arch/arm64/include/asm/string.h
+++ b/arch/arm64/include/asm/string.h
@@ -63,6 +63,11 @@ extern int memcmp(const void *, const void *, size_t);
 #define memcpy(dst, src, len) __memcpy(dst, src, len)
 #define memmove(dst, src, len) __memmove(dst, src, len)
 #define memset(s, c, n) __memset(s, c, n)
+
+#ifndef __NO_FORTIFY
+#define __NO_FORTIFY /* FORTIFY_SOURCE uses __builtin_memcpy, etc. */
+#endif
+
 #endif
 
 #endif
diff --git a/arch/arm64/include/asm/sysreg.h b/arch/arm64/include/asm/sysreg.h
index 16e44fa9b3b6..248339e4aaf5 100644
--- a/arch/arm64/include/asm/sysreg.h
+++ b/arch/arm64/include/asm/sysreg.h
@@ -492,7 +492,7 @@ asm(
  * the "%x0" template means XZR.
  */
 #define write_sysreg(v, r) do {					\
-	u64 __val = (u64)v;					\
+	u64 __val = (u64)(v);					\
 	asm volatile("msr " __stringify(r) ", %x0"		\
 		     : : "rZ" (__val));				\
 } while (0)
@@ -508,7 +508,7 @@ asm(
 })
 
 #define write_sysreg_s(v, r) do {					\
-	u64 __val = (u64)v;						\
+	u64 __val = (u64)(v);						\
 	asm volatile("msr_s " __stringify(r) ", %x0" : : "rZ" (__val));	\
 } while (0)
 
diff --git a/arch/arm64/include/asm/uaccess.h b/arch/arm64/include/asm/uaccess.h
index 59f09e6a6cb8..fab46a0ea223 100644
--- a/arch/arm64/include/asm/uaccess.h
+++ b/arch/arm64/include/asm/uaccess.h
@@ -69,7 +69,7 @@ static inline void set_fs(mm_segment_t fs)
  */
 #define __range_ok(addr, size)						\
 ({									\
-	unsigned long __addr = (unsigned long __force)(addr);		\
+	unsigned long __addr = (unsigned long)(addr);			\
 	unsigned long flag, roksum;					\
 	__chk_user_ptr(addr);						\
 	asm("adds %1, %1, %3; ccmp %1, %4, #2, cc; cset %0, ls"		\
@@ -254,8 +254,6 @@ do {									\
 	(void)0;							\
 })
 
-#define __get_user_unaligned __get_user
-
 #define get_user(x, ptr)						\
 ({									\
 	__typeof__(*(ptr)) __user *__p = (ptr);				\
@@ -320,8 +318,6 @@ do {									\
 	(void)0;							\
 })
 
-#define __put_user_unaligned __put_user
-
 #define put_user(x, ptr)						\
 ({									\
 	__typeof__(*(ptr)) __user *__p = (ptr);				\
diff --git a/arch/arm64/include/uapi/asm/Kbuild b/arch/arm64/include/uapi/asm/Kbuild
index 13a97aa2285f..fc28bd95c6d3 100644
--- a/arch/arm64/include/uapi/asm/Kbuild
+++ b/arch/arm64/include/uapi/asm/Kbuild
@@ -1,4 +1,20 @@
 # UAPI Header export list
 include include/uapi/asm-generic/Kbuild.asm
 
+generic-y += errno.h
+generic-y += ioctl.h
+generic-y += ioctls.h
+generic-y += ipcbuf.h
 generic-y += kvm_para.h
+generic-y += mman.h
+generic-y += msgbuf.h
+generic-y += poll.h
+generic-y += resource.h
+generic-y += sembuf.h
+generic-y += shmbuf.h
+generic-y += socket.h
+generic-y += sockios.h
+generic-y += swab.h
+generic-y += termbits.h
+generic-y += termios.h
+generic-y += types.h
diff --git a/arch/arm64/kernel/cpu_ops.c b/arch/arm64/kernel/cpu_ops.c
index e137ceaf5016..d16978213c5b 100644
--- a/arch/arm64/kernel/cpu_ops.c
+++ b/arch/arm64/kernel/cpu_ops.c
@@ -82,8 +82,8 @@ static const char *__init cpu_read_enable_method(int cpu)
 			 * Don't warn spuriously.
 			 */
 			if (cpu != 0)
-				pr_err("%s: missing enable-method property\n",
-					dn->full_name);
+				pr_err("%pOF: missing enable-method property\n",
+					dn);
 		}
 	} else {
 		enable_method = acpi_get_enable_method(cpu);
diff --git a/arch/arm64/kernel/smp.c b/arch/arm64/kernel/smp.c
index 321119881abf..dc66e6ec3a99 100644
--- a/arch/arm64/kernel/smp.c
+++ b/arch/arm64/kernel/smp.c
@@ -469,7 +469,7 @@ static u64 __init of_get_cpu_mpidr(struct device_node *dn)
 	 */
 	cell = of_get_property(dn, "reg", NULL);
 	if (!cell) {
-		pr_err("%s: missing reg property\n", dn->full_name);
+		pr_err("%pOF: missing reg property\n", dn);
 		return INVALID_HWID;
 	}
 
@@ -478,7 +478,7 @@ static u64 __init of_get_cpu_mpidr(struct device_node *dn)
 	 * Non affinity bits must be set to 0 in the DT
 	 */
 	if (hwid & ~MPIDR_HWID_BITMASK) {
-		pr_err("%s: invalid reg property\n", dn->full_name);
+		pr_err("%pOF: invalid reg property\n", dn);
 		return INVALID_HWID;
 	}
 	return hwid;
@@ -627,8 +627,8 @@ static void __init of_parse_and_init_cpus(void)
 			goto next;
 
 		if (is_mpidr_duplicate(cpu_count, hwid)) {
-			pr_err("%s: duplicate cpu reg properties in the DT\n",
-				dn->full_name);
+			pr_err("%pOF: duplicate cpu reg properties in the DT\n",
+				dn);
 			goto next;
 		}
 
@@ -640,8 +640,8 @@ static void __init of_parse_and_init_cpus(void)
 		 */
 		if (hwid == cpu_logical_map(0)) {
 			if (bootcpu_valid) {
-				pr_err("%s: duplicate boot cpu reg property in DT\n",
-					dn->full_name);
+				pr_err("%pOF: duplicate boot cpu reg property in DT\n",
+					dn);
 				goto next;
 			}
 
diff --git a/arch/arm64/kernel/topology.c b/arch/arm64/kernel/topology.c
index 79244c75eaec..8d48b233e6ce 100644
--- a/arch/arm64/kernel/topology.c
+++ b/arch/arm64/kernel/topology.c
@@ -45,7 +45,7 @@ static int __init get_cpu_for_node(struct device_node *node)
 		}
 	}
 
-	pr_crit("Unable to find CPU node for %s\n", cpu_node->full_name);
+	pr_crit("Unable to find CPU node for %pOF\n", cpu_node);
 
 	of_node_put(cpu_node);
 	return -1;
@@ -71,8 +71,8 @@ static int __init parse_core(struct device_node *core, int cluster_id,
 				cpu_topology[cpu].core_id = core_id;
 				cpu_topology[cpu].thread_id = i;
 			} else {
-				pr_err("%s: Can't get CPU for thread\n",
-				       t->full_name);
+				pr_err("%pOF: Can't get CPU for thread\n",
+				       t);
 				of_node_put(t);
 				return -EINVAL;
 			}
@@ -84,15 +84,15 @@ static int __init parse_core(struct device_node *core, int cluster_id,
 	cpu = get_cpu_for_node(core);
 	if (cpu >= 0) {
 		if (!leaf) {
-			pr_err("%s: Core has both threads and CPU\n",
-			       core->full_name);
+			pr_err("%pOF: Core has both threads and CPU\n",
+			       core);
 			return -EINVAL;
 		}
 
 		cpu_topology[cpu].cluster_id = cluster_id;
 		cpu_topology[cpu].core_id = core_id;
 	} else if (leaf) {
-		pr_err("%s: Can't get CPU for leaf core\n", core->full_name);
+		pr_err("%pOF: Can't get CPU for leaf core\n", core);
 		return -EINVAL;
 	}
 
@@ -137,8 +137,8 @@ static int __init parse_cluster(struct device_node *cluster, int depth)
 			has_cores = true;
 
 			if (depth == 0) {
-				pr_err("%s: cpu-map children should be clusters\n",
-				       c->full_name);
+				pr_err("%pOF: cpu-map children should be clusters\n",
+				       c);
 				of_node_put(c);
 				return -EINVAL;
 			}
@@ -146,8 +146,8 @@ static int __init parse_cluster(struct device_node *cluster, int depth)
 			if (leaf) {
 				ret = parse_core(c, cluster_id, core_id++);
 			} else {
-				pr_err("%s: Non-leaf cluster with core %s\n",
-				       cluster->full_name, name);
+				pr_err("%pOF: Non-leaf cluster with core %s\n",
+				       cluster, name);
 				ret = -EINVAL;
 			}
 
@@ -159,7 +159,7 @@ static int __init parse_cluster(struct device_node *cluster, int depth)
 	} while (c);
 
 	if (leaf && !has_cores)
-		pr_warn("%s: empty cluster\n", cluster->full_name);
+		pr_warn("%pOF: empty cluster\n", cluster);
 
 	if (leaf)
 		cluster_id++;
diff --git a/arch/arm64/kernel/traps.c b/arch/arm64/kernel/traps.c
index c7c7088097be..8a62648848e5 100644
--- a/arch/arm64/kernel/traps.c
+++ b/arch/arm64/kernel/traps.c
@@ -274,10 +274,12 @@ static DEFINE_RAW_SPINLOCK(die_lock);
 void die(const char *str, struct pt_regs *regs, int err)
 {
 	int ret;
+	unsigned long flags;
+
+	raw_spin_lock_irqsave(&die_lock, flags);
 
 	oops_enter();
 
-	raw_spin_lock_irq(&die_lock);
 	console_verbose();
 	bust_spinlocks(1);
 	ret = __die(str, err, regs);
@@ -287,13 +289,15 @@ void die(const char *str, struct pt_regs *regs, int err)
 
 	bust_spinlocks(0);
 	add_taint(TAINT_DIE, LOCKDEP_NOW_UNRELIABLE);
-	raw_spin_unlock_irq(&die_lock);
 	oops_exit();
 
 	if (in_interrupt())
 		panic("Fatal exception in interrupt");
 	if (panic_on_oops)
 		panic("Fatal exception");
+
+	raw_spin_unlock_irqrestore(&die_lock, flags);
+
 	if (ret != NOTIFY_STOP)
 		do_exit(SIGSEGV);
 }
@@ -519,7 +523,7 @@ static void cntfrq_read_handler(unsigned int esr, struct pt_regs *regs)
 {
 	int rt = (esr & ESR_ELx_SYS64_ISS_RT_MASK) >> ESR_ELx_SYS64_ISS_RT_SHIFT;
 
-	pt_regs_write_reg(regs, rt, read_sysreg(cntfrq_el0));
+	pt_regs_write_reg(regs, rt, arch_timer_get_rate());
 	regs->pc += 4;
 }
 
diff --git a/arch/arm64/kvm/sys_regs.c b/arch/arm64/kvm/sys_regs.c
index 77862881ae86..2e070d3baf9f 100644
--- a/arch/arm64/kvm/sys_regs.c
+++ b/arch/arm64/kvm/sys_regs.c
@@ -764,7 +764,7 @@ static bool access_pmovs(struct kvm_vcpu *vcpu, struct sys_reg_params *p,
 	if (p->is_write) {
 		if (r->CRm & 0x2)
 			/* accessing PMOVSSET_EL0 */
-			kvm_pmu_overflow_set(vcpu, p->regval & mask);
+			vcpu_sys_reg(vcpu, PMOVSSET_EL0) |= (p->regval & mask);
 		else
 			/* accessing PMOVSCLR_EL0 */
 			vcpu_sys_reg(vcpu, PMOVSSET_EL0) &= ~(p->regval & mask);
diff --git a/arch/arm64/lib/copy_page.S b/arch/arm64/lib/copy_page.S
index c3cd65e31814..076c43715e64 100644
--- a/arch/arm64/lib/copy_page.S
+++ b/arch/arm64/lib/copy_page.S
@@ -30,9 +30,10 @@
  */
 ENTRY(copy_page)
 alternative_if ARM64_HAS_NO_HW_PREFETCH
-	# Prefetch two cache lines ahead.
-	prfm    pldl1strm, [x1, #128]
-	prfm    pldl1strm, [x1, #256]
+	// Prefetch three cache lines ahead.
+	prfm	pldl1strm, [x1, #128]
+	prfm	pldl1strm, [x1, #256]
+	prfm	pldl1strm, [x1, #384]
 alternative_else_nop_endif
 
 	ldp	x2, x3, [x1]
@@ -50,7 +51,7 @@ alternative_else_nop_endif
 	subs	x18, x18, #128
 
 alternative_if ARM64_HAS_NO_HW_PREFETCH
-	prfm    pldl1strm, [x1, #384]
+	prfm	pldl1strm, [x1, #384]
 alternative_else_nop_endif
 
 	stnp	x2, x3, [x0]
diff --git a/arch/arm64/mm/dma-mapping.c b/arch/arm64/mm/dma-mapping.c
index e90cd1db42a8..f27d4dd04384 100644
--- a/arch/arm64/mm/dma-mapping.c
+++ b/arch/arm64/mm/dma-mapping.c
@@ -329,7 +329,7 @@ static int __swiotlb_mmap(struct device *dev,
 	vma->vm_page_prot = __get_dma_pgprot(attrs, vma->vm_page_prot,
 					     is_device_dma_coherent(dev));
 
-	if (dma_mmap_from_coherent(dev, vma, cpu_addr, size, &ret))
+	if (dma_mmap_from_dev_coherent(dev, vma, cpu_addr, size, &ret))
 		return ret;
 
 	return __swiotlb_mmap_pfn(vma, pfn, size);
@@ -706,7 +706,7 @@ static int __iommu_mmap_attrs(struct device *dev, struct vm_area_struct *vma,
 	vma->vm_page_prot = __get_dma_pgprot(attrs, vma->vm_page_prot,
 					     is_device_dma_coherent(dev));
 
-	if (dma_mmap_from_coherent(dev, vma, cpu_addr, size, &ret))
+	if (dma_mmap_from_dev_coherent(dev, vma, cpu_addr, size, &ret))
 		return ret;
 
 	if (attrs & DMA_ATTR_FORCE_CONTIGUOUS) {
diff --git a/arch/arm64/mm/fault.c b/arch/arm64/mm/fault.c
index c7861c9864e6..2509e4fe6992 100644
--- a/arch/arm64/mm/fault.c
+++ b/arch/arm64/mm/fault.c
@@ -163,26 +163,27 @@ int ptep_set_access_flags(struct vm_area_struct *vma,
 	/* only preserve the access flags and write permission */
 	pte_val(entry) &= PTE_AF | PTE_WRITE | PTE_DIRTY;
 
-	/*
-	 * PTE_RDONLY is cleared by default in the asm below, so set it in
-	 * back if necessary (read-only or clean PTE).
-	 */
+	/* set PTE_RDONLY if actual read-only or clean PTE */
 	if (!pte_write(entry) || !pte_sw_dirty(entry))
 		pte_val(entry) |= PTE_RDONLY;
 
 	/*
 	 * Setting the flags must be done atomically to avoid racing with the
-	 * hardware update of the access/dirty state.
+	 * hardware update of the access/dirty state. The PTE_RDONLY bit must
+	 * be set to the most permissive (lowest value) of *ptep and entry
+	 * (calculated as: a & b == ~(~a | ~b)).
 	 */
+	pte_val(entry) ^= PTE_RDONLY;
 	asm volatile("//	ptep_set_access_flags\n"
 	"	prfm	pstl1strm, %2\n"
 	"1:	ldxr	%0, %2\n"
-	"	and	%0, %0, %3		// clear PTE_RDONLY\n"
+	"	eor	%0, %0, %3		// negate PTE_RDONLY in *ptep\n"
 	"	orr	%0, %0, %4		// set flags\n"
+	"	eor	%0, %0, %3		// negate final PTE_RDONLY\n"
 	"	stxr	%w1, %0, %2\n"
 	"	cbnz	%w1, 1b\n"
 	: "=&r" (old_pteval), "=&r" (tmp), "+Q" (pte_val(*ptep))
-	: "L" (~PTE_RDONLY), "r" (pte_val(entry)));
+	: "L" (PTE_RDONLY), "r" (pte_val(entry)));
 
 	flush_tlb_fix_spurious_fault(vma, address);
 	return 1;
diff --git a/arch/arm64/mm/mmap.c b/arch/arm64/mm/mmap.c
index adc208c2ae9c..decccffb03ca 100644
--- a/arch/arm64/mm/mmap.c
+++ b/arch/arm64/mm/mmap.c
@@ -35,7 +35,7 @@
  * Leave enough space between the mmap area and the stack to honour ulimit in
  * the face of randomisation.
  */
-#define MIN_GAP (SZ_128M + ((STACK_RND_MASK << PAGE_SHIFT) + 1))
+#define MIN_GAP (SZ_128M)
 #define MAX_GAP	(STACK_TOP/6*5)
 
 static int mmap_is_legacy(void)
@@ -65,6 +65,11 @@ unsigned long arch_mmap_rnd(void)
 static unsigned long mmap_base(unsigned long rnd)
 {
 	unsigned long gap = rlimit(RLIMIT_STACK);
+	unsigned long pad = (STACK_RND_MASK << PAGE_SHIFT) + stack_guard_gap;
+
+	/* Values close to RLIM_INFINITY can overflow. */
+	if (gap + pad > gap)
+		gap += pad;
 
 	if (gap < MIN_GAP)
 		gap = MIN_GAP;
diff --git a/arch/arm64/mm/mmu.c b/arch/arm64/mm/mmu.c
index 23c2d89a362e..f1eb15e0e864 100644
--- a/arch/arm64/mm/mmu.c
+++ b/arch/arm64/mm/mmu.c
@@ -496,7 +496,7 @@ void mark_rodata_ro(void)
 
 static void __init map_kernel_segment(pgd_t *pgd, void *va_start, void *va_end,
 				      pgprot_t prot, struct vm_struct *vma,
-				      int flags)
+				      int flags, unsigned long vm_flags)
 {
 	phys_addr_t pa_start = __pa_symbol(va_start);
 	unsigned long size = va_end - va_start;
@@ -507,10 +507,13 @@ static void __init map_kernel_segment(pgd_t *pgd, void *va_start, void *va_end,
 	__create_pgd_mapping(pgd, pa_start, (unsigned long)va_start, size, prot,
 			     early_pgtable_alloc, flags);
 
+	if (!(vm_flags & VM_NO_GUARD))
+		size += PAGE_SIZE;
+
 	vma->addr	= va_start;
 	vma->phys_addr	= pa_start;
 	vma->size	= size;
-	vma->flags	= VM_MAP;
+	vma->flags	= VM_MAP | vm_flags;
 	vma->caller	= __builtin_return_address(0);
 
 	vm_area_add_early(vma);
@@ -541,14 +544,15 @@ static void __init map_kernel(pgd_t *pgd)
 	 * Only rodata will be remapped with different permissions later on,
 	 * all other segments are allowed to use contiguous mappings.
 	 */
-	map_kernel_segment(pgd, _text, _etext, text_prot, &vmlinux_text, 0);
+	map_kernel_segment(pgd, _text, _etext, text_prot, &vmlinux_text, 0,
+			   VM_NO_GUARD);
 	map_kernel_segment(pgd, __start_rodata, __inittext_begin, PAGE_KERNEL,
-			   &vmlinux_rodata, NO_CONT_MAPPINGS);
+			   &vmlinux_rodata, NO_CONT_MAPPINGS, VM_NO_GUARD);
 	map_kernel_segment(pgd, __inittext_begin, __inittext_end, text_prot,
-			   &vmlinux_inittext, 0);
+			   &vmlinux_inittext, 0, VM_NO_GUARD);
 	map_kernel_segment(pgd, __initdata_begin, __initdata_end, PAGE_KERNEL,
-			   &vmlinux_initdata, 0);
-	map_kernel_segment(pgd, _data, _end, PAGE_KERNEL, &vmlinux_data, 0);
+			   &vmlinux_initdata, 0, VM_NO_GUARD);
+	map_kernel_segment(pgd, _data, _end, PAGE_KERNEL, &vmlinux_data, 0, 0);
 
 	if (!pgd_val(*pgd_offset_raw(pgd, FIXADDR_START))) {
 		/*
diff --git a/arch/arm64/mm/numa.c b/arch/arm64/mm/numa.c
index b388a99fea7b..dad128ba98bf 100644
--- a/arch/arm64/mm/numa.c
+++ b/arch/arm64/mm/numa.c
@@ -208,8 +208,6 @@ int __init numa_add_memblk(int nid, u64 start, u64 end)
 	}
 
 	node_set(nid, numa_nodes_parsed);
-	pr_info("Adding memblock [0x%llx - 0x%llx] on node %d\n",
-			start, (end - 1), nid);
 	return ret;
 }
 
@@ -223,10 +221,7 @@ static void __init setup_node_data(int nid, u64 start_pfn, u64 end_pfn)
 	void *nd;
 	int tnid;
 
-	if (start_pfn < end_pfn)
-		pr_info("Initmem setup node %d [mem %#010Lx-%#010Lx]\n", nid,
-			start_pfn << PAGE_SHIFT, (end_pfn << PAGE_SHIFT) - 1);
-	else
+	if (start_pfn >= end_pfn)
 		pr_info("Initmem setup node %d [<memory-less node>]\n", nid);
 
 	nd_pa = memblock_alloc_try_nid(nd_size, SMP_CACHE_BYTES, nid);
diff --git a/arch/blackfin/include/asm/Kbuild b/arch/blackfin/include/asm/Kbuild
index dc4ef9ac1e83..fe736973630f 100644
--- a/arch/blackfin/include/asm/Kbuild
+++ b/arch/blackfin/include/asm/Kbuild
@@ -1,50 +1,28 @@
-
-generic-y += auxvec.h
-generic-y += bitsperlong.h
 generic-y += bugs.h
 generic-y += current.h
 generic-y += device.h
 generic-y += div64.h
 generic-y += emergency-restart.h
-generic-y += errno.h
 generic-y += extable.h
 generic-y += fb.h
 generic-y += futex.h
 generic-y += hw_irq.h
-generic-y += ioctl.h
-generic-y += ipcbuf.h
 generic-y += irq_regs.h
 generic-y += irq_work.h
 generic-y += kdebug.h
 generic-y += kmap_types.h
-generic-y += kvm_para.h
+generic-y += kprobes.h
 generic-y += local.h
 generic-y += local64.h
 generic-y += mcs_spinlock.h
 generic-y += mm-arch-hooks.h
-generic-y += mman.h
-generic-y += msgbuf.h
-generic-y += param.h
 generic-y += percpu.h
 generic-y += pgalloc.h
 generic-y += preempt.h
-generic-y += resource.h
-generic-y += sembuf.h
 generic-y += serial.h
-generic-y += setup.h
-generic-y += shmbuf.h
-generic-y += shmparam.h
-generic-y += socket.h
-generic-y += sockios.h
-generic-y += statfs.h
-generic-y += termbits.h
-generic-y += termios.h
 generic-y += topology.h
 generic-y += trace_clock.h
-generic-y += types.h
-generic-y += ucontext.h
 generic-y += unaligned.h
 generic-y += user.h
 generic-y += word-at-a-time.h
 generic-y += xor.h
-generic-y += kprobes.h
diff --git a/arch/blackfin/include/asm/bug.h b/arch/blackfin/include/asm/bug.h
index 8d9b1eba89c4..76b2e82ee730 100644
--- a/arch/blackfin/include/asm/bug.h
+++ b/arch/blackfin/include/asm/bug.h
@@ -21,7 +21,7 @@
 #define _BUG_OR_WARN(flags)						\
 	asm volatile(							\
 		"1:	.hword	%0\n"					\
-		"	.section __bug_table,\"a\",@progbits\n"		\
+		"	.section __bug_table,\"aw\",@progbits\n"	\
 		"2:	.long	1b\n"					\
 		"	.long	%1\n"					\
 		"	.short	%2\n"					\
@@ -38,7 +38,7 @@
 #define _BUG_OR_WARN(flags)						\
 	asm volatile(							\
 		"1:	.hword	%0\n"					\
-		"	.section __bug_table,\"a\",@progbits\n"		\
+		"	.section __bug_table,\"aw\",@progbits\n"	\
 		"2:	.long	1b\n"					\
 		"	.short	%1\n"					\
 		"	.org	2b + %2\n"				\
diff --git a/arch/blackfin/include/asm/flat.h b/arch/blackfin/include/asm/flat.h
index c1314c56dd18..f1d6ba7afbf2 100644
--- a/arch/blackfin/include/asm/flat.h
+++ b/arch/blackfin/include/asm/flat.h
@@ -14,23 +14,28 @@
 #define	flat_argvp_envp_on_stack()		0
 #define	flat_old_ram_flag(flags)		(flags)
 
-extern unsigned long bfin_get_addr_from_rp (unsigned long *ptr,
-					unsigned long relval,
-					unsigned long flags,
-					unsigned long *persistent);
+extern unsigned long bfin_get_addr_from_rp (u32 *ptr, u32 relval,
+					u32 flags, u32 *persistent);
 
-extern void bfin_put_addr_at_rp(unsigned long *ptr, unsigned long addr,
-		                unsigned long relval);
+extern void bfin_put_addr_at_rp(u32 *ptr, u32 addr, u32 relval);
 
 /* The amount by which a relocation can exceed the program image limits
    without being regarded as an error.  */
 
 #define	flat_reloc_valid(reloc, size)	((reloc) <= (size))
 
-#define	flat_get_addr_from_rp(rp, relval, flags, persistent)	\
-	bfin_get_addr_from_rp(rp, relval, flags, persistent)
-#define	flat_put_addr_at_rp(rp, val, relval)	\
-	bfin_put_addr_at_rp(rp, val, relval)
+static inline int flat_get_addr_from_rp(u32 __user *rp, u32 relval, u32 flags,
+					u32 *addr, u32 *persistent)
+{
+	*addr = bfin_get_addr_from_rp(rp, relval, flags, persistent);
+	return 0;
+}
+
+static inline int flat_put_addr_at_rp(u32 __user *rp, u32 val, u32 relval)
+{
+	bfin_put_addr_at_rp(rp, val, relval);
+	return 0;
+}
 
 /* Convert a relocation entry into an address.  */
 static inline unsigned long
@@ -39,8 +44,7 @@ flat_get_relocate_addr (unsigned long relval)
 	return relval & 0x03ffffff; /* Mask out top 6 bits */
 }
 
-static inline int flat_set_persistent(unsigned long relval,
-				      unsigned long *persistent)
+static inline int flat_set_persistent(u32 relval, u32 *persistent)
 {
 	int type = (relval >> 26) & 7;
 	if (type == 3) {
diff --git a/arch/blackfin/include/asm/nmi.h b/arch/blackfin/include/asm/nmi.h
index b9caac4fcfd8..107d23705f46 100644
--- a/arch/blackfin/include/asm/nmi.h
+++ b/arch/blackfin/include/asm/nmi.h
@@ -9,4 +9,6 @@
 
 #include <linux/nmi.h>
 
+extern void arch_touch_nmi_watchdog(void);
+
 #endif
diff --git a/arch/blackfin/include/uapi/asm/Kbuild b/arch/blackfin/include/uapi/asm/Kbuild
index b15bf6bc0e94..aa624b4ab655 100644
--- a/arch/blackfin/include/uapi/asm/Kbuild
+++ b/arch/blackfin/include/uapi/asm/Kbuild
@@ -1,2 +1,24 @@
 # UAPI Header export list
 include include/uapi/asm-generic/Kbuild.asm
+
+generic-y += auxvec.h
+generic-y += bitsperlong.h
+generic-y += errno.h
+generic-y += ioctl.h
+generic-y += ipcbuf.h
+generic-y += kvm_para.h
+generic-y += mman.h
+generic-y += msgbuf.h
+generic-y += param.h
+generic-y += resource.h
+generic-y += sembuf.h
+generic-y += setup.h
+generic-y += shmbuf.h
+generic-y += shmparam.h
+generic-y += socket.h
+generic-y += sockios.h
+generic-y += statfs.h
+generic-y += termbits.h
+generic-y += termios.h
+generic-y += types.h
+generic-y += ucontext.h
diff --git a/arch/blackfin/kernel/flat.c b/arch/blackfin/kernel/flat.c
index b5b658449616..8ebc54daaa8e 100644
--- a/arch/blackfin/kernel/flat.c
+++ b/arch/blackfin/kernel/flat.c
@@ -13,14 +13,14 @@
 #define FLAT_BFIN_RELOC_TYPE_16H_BIT 1
 #define FLAT_BFIN_RELOC_TYPE_32_BIT 2
 
-unsigned long bfin_get_addr_from_rp(unsigned long *ptr,
-		unsigned long relval,
-		unsigned long flags,
-		unsigned long *persistent)
+unsigned long bfin_get_addr_from_rp(u32 *ptr,
+		u32 relval,
+		u32 flags,
+		u32 *persistent)
 {
 	unsigned short *usptr = (unsigned short *)ptr;
 	int type = (relval >> 26) & 7;
-	unsigned long val;
+	u32 val;
 
 	switch (type) {
 	case FLAT_BFIN_RELOC_TYPE_16_BIT:
@@ -32,7 +32,7 @@ unsigned long bfin_get_addr_from_rp(unsigned long *ptr,
 		break;
 
 	case FLAT_BFIN_RELOC_TYPE_32_BIT:
-		pr_debug("*ptr = %lx", get_unaligned(ptr));
+		pr_debug("*ptr = %x", get_unaligned(ptr));
 		val = get_unaligned(ptr);
 		break;
 
@@ -59,8 +59,7 @@ EXPORT_SYMBOL(bfin_get_addr_from_rp);
  * Insert the address ADDR into the symbol reference at RP;
  * RELVAL is the raw relocation-table entry from which RP is derived
  */
-void bfin_put_addr_at_rp(unsigned long *ptr, unsigned long addr,
-		unsigned long relval)
+void bfin_put_addr_at_rp(u32 *ptr, u32 addr, u32 relval)
 {
 	unsigned short *usptr = (unsigned short *)ptr;
 	int type = (relval >> 26) & 7;
@@ -78,7 +77,7 @@ void bfin_put_addr_at_rp(unsigned long *ptr, unsigned long addr,
 
 	case FLAT_BFIN_RELOC_TYPE_32_BIT:
 		put_unaligned(addr, ptr);
-		pr_debug("new ptr =%lx", get_unaligned(ptr));
+		pr_debug("new ptr =%x", get_unaligned(ptr));
 		break;
 	}
 }
diff --git a/arch/blackfin/kernel/nmi.c b/arch/blackfin/kernel/nmi.c
index 633c37083e87..1e714329fe8a 100644
--- a/arch/blackfin/kernel/nmi.c
+++ b/arch/blackfin/kernel/nmi.c
@@ -190,7 +190,7 @@ static int __init init_nmi_wdt(void)
 }
 device_initcall(init_nmi_wdt);
 
-void touch_nmi_watchdog(void)
+void arch_touch_nmi_watchdog(void)
 {
 	atomic_set(&nmi_touched[smp_processor_id()], 1);
 }
diff --git a/arch/c6x/include/asm/Kbuild b/arch/c6x/include/asm/Kbuild
index a3c8d05c4cc7..d717329c8cf9 100644
--- a/arch/c6x/include/asm/Kbuild
+++ b/arch/c6x/include/asm/Kbuild
@@ -1,8 +1,5 @@
-
 generic-y += atomic.h
-generic-y += auxvec.h
 generic-y += barrier.h
-generic-y += bitsperlong.h
 generic-y += bugs.h
 generic-y += clkdev.h
 generic-y += current.h
@@ -10,55 +7,32 @@ generic-y += device.h
 generic-y += div64.h
 generic-y += dma.h
 generic-y += emergency-restart.h
-generic-y += errno.h
 generic-y += exec.h
 generic-y += extable.h
 generic-y += fb.h
-generic-y += fcntl.h
 generic-y += futex.h
 generic-y += hw_irq.h
 generic-y += io.h
-generic-y += ioctl.h
-generic-y += ioctls.h
-generic-y += ipcbuf.h
 generic-y += irq_regs.h
 generic-y += irq_work.h
 generic-y += kdebug.h
 generic-y += kmap_types.h
+generic-y += kprobes.h
 generic-y += local.h
 generic-y += mcs_spinlock.h
 generic-y += mm-arch-hooks.h
-generic-y += mman.h
 generic-y += mmu.h
 generic-y += mmu_context.h
-generic-y += msgbuf.h
-generic-y += param.h
 generic-y += pci.h
 generic-y += percpu.h
 generic-y += pgalloc.h
-generic-y += poll.h
-generic-y += posix_types.h
 generic-y += preempt.h
-generic-y += resource.h
 generic-y += segment.h
-generic-y += sembuf.h
 generic-y += serial.h
-generic-y += shmbuf.h
-generic-y += shmparam.h
-generic-y += signal.h
-generic-y += socket.h
-generic-y += sockios.h
-generic-y += stat.h
-generic-y += statfs.h
-generic-y += termbits.h
-generic-y += termios.h
 generic-y += tlbflush.h
 generic-y += topology.h
 generic-y += trace_clock.h
-generic-y += types.h
-generic-y += ucontext.h
 generic-y += user.h
 generic-y += vga.h
 generic-y += word-at-a-time.h
 generic-y += xor.h
-generic-y += kprobes.h
diff --git a/arch/c6x/include/asm/flat.h b/arch/c6x/include/asm/flat.h
index a1858bd5f6c8..6f1feb00bd52 100644
--- a/arch/c6x/include/asm/flat.h
+++ b/arch/c6x/include/asm/flat.h
@@ -1,11 +1,22 @@
 #ifndef __ASM_C6X_FLAT_H
 #define __ASM_C6X_FLAT_H
 
+#include <asm/unaligned.h>
+
 #define flat_argvp_envp_on_stack()			0
 #define flat_old_ram_flag(flags)			(flags)
 #define flat_reloc_valid(reloc, size)			((reloc) <= (size))
-#define flat_get_addr_from_rp(rp, relval, flags, p)	get_unaligned(rp)
-#define flat_put_addr_at_rp(rp, val, relval)		put_unaligned(val, rp)
+static inline int flat_get_addr_from_rp(u32 __user *rp, u32 relval, u32 flags,
+					u32 *addr, u32 *persistent)
+{
+	*addr = get_unaligned((__force u32 *)rp);
+	return 0;
+}
+static inline int flat_put_addr_at_rp(u32 __user *rp, u32 addr, u32 rel)
+{
+	put_unaligned(addr, (__force u32 *)rp);
+	return 0;
+}
 #define flat_get_relocate_addr(rel)			(rel)
 #define flat_set_persistent(relval, p)			0
 
diff --git a/arch/c6x/include/uapi/asm/Kbuild b/arch/c6x/include/uapi/asm/Kbuild
index 1c44d3b3eba0..67ee896a76a7 100644
--- a/arch/c6x/include/uapi/asm/Kbuild
+++ b/arch/c6x/include/uapi/asm/Kbuild
@@ -1,5 +1,30 @@
 # UAPI Header export list
 include include/uapi/asm-generic/Kbuild.asm
 
+generic-y += auxvec.h
+generic-y += bitsperlong.h
+generic-y += errno.h
+generic-y += fcntl.h
+generic-y += ioctl.h
+generic-y += ioctls.h
+generic-y += ipcbuf.h
 generic-y += kvm_para.h
+generic-y += mman.h
+generic-y += msgbuf.h
+generic-y += param.h
+generic-y += poll.h
+generic-y += posix_types.h
+generic-y += resource.h
+generic-y += sembuf.h
+generic-y += shmbuf.h
+generic-y += shmparam.h
 generic-y += siginfo.h
+generic-y += signal.h
+generic-y += socket.h
+generic-y += sockios.h
+generic-y += stat.h
+generic-y += statfs.h
+generic-y += termbits.h
+generic-y += termios.h
+generic-y += types.h
+generic-y += ucontext.h
diff --git a/arch/cris/arch-v10/drivers/gpio.c b/arch/cris/arch-v10/drivers/gpio.c
index 64285e0d3481..dfd3b3ba5e4e 100644
--- a/arch/cris/arch-v10/drivers/gpio.c
+++ b/arch/cris/arch-v10/drivers/gpio.c
@@ -399,7 +399,7 @@ out:
 /* Main device API. ioctl's to read/set/clear bits, as well as to
  * set alarms to wait for using a subsequent select().
  */
-unsigned long inline setget_input(struct gpio_private *priv, unsigned long arg)
+inline unsigned long setget_input(struct gpio_private *priv, unsigned long arg)
 {
 	/* Set direction 0=unchanged 1=input,
 	 * return mask with 1=input */
@@ -450,7 +450,7 @@ unsigned long inline setget_input(struct gpio_private *priv, unsigned long arg)
 	return dir_g_in_bits;
 } /* setget_input */
 
-unsigned long inline setget_output(struct gpio_private *priv, unsigned long arg)
+inline unsigned long setget_output(struct gpio_private *priv, unsigned long arg)
 {
 	if (USE_PORTS(priv)) {
 		*priv->dir = *priv->dir_shadow |=
diff --git a/arch/cris/include/asm/Kbuild b/arch/cris/include/asm/Kbuild
index acc5781100c2..460349cb147f 100644
--- a/arch/cris/include/asm/Kbuild
+++ b/arch/cris/include/asm/Kbuild
@@ -1,48 +1,31 @@
 generic-y += atomic.h
-generic-y += auxvec.h
 generic-y += barrier.h
-generic-y += bitsperlong.h
 generic-y += clkdev.h
 generic-y += cmpxchg.h
 generic-y += current.h
 generic-y += device.h
 generic-y += div64.h
-generic-y += errno.h
+generic-y += emergency-restart.h
 generic-y += exec.h
 generic-y += extable.h
-generic-y += emergency-restart.h
-generic-y += fcntl.h
 generic-y += futex.h
 generic-y += hardirq.h
-generic-y += ioctl.h
-generic-y += ipcbuf.h
 generic-y += irq_regs.h
 generic-y += irq_work.h
 generic-y += kdebug.h
 generic-y += kmap_types.h
-generic-y += kvm_para.h
+generic-y += kprobes.h
 generic-y += linkage.h
 generic-y += local.h
 generic-y += local64.h
 generic-y += mcs_spinlock.h
 generic-y += mm-arch-hooks.h
-generic-y += mman.h
 generic-y += module.h
-generic-y += msgbuf.h
 generic-y += percpu.h
-generic-y += poll.h
 generic-y += preempt.h
-generic-y += resource.h
 generic-y += sections.h
-generic-y += sembuf.h
-generic-y += shmbuf.h
-generic-y += socket.h
-generic-y += sockios.h
-generic-y += statfs.h
 generic-y += topology.h
 generic-y += trace_clock.h
-generic-y += types.h
 generic-y += vga.h
 generic-y += word-at-a-time.h
 generic-y += xor.h
-generic-y += kprobes.h
diff --git a/arch/cris/include/uapi/asm/Kbuild b/arch/cris/include/uapi/asm/Kbuild
index b55fc2ae1e8c..3687b54bb18e 100644
--- a/arch/cris/include/uapi/asm/Kbuild
+++ b/arch/cris/include/uapi/asm/Kbuild
@@ -1,4 +1,21 @@
 # UAPI Header export list
 include include/uapi/asm-generic/Kbuild.asm
 
+generic-y += auxvec.h
+generic-y += bitsperlong.h
+generic-y += errno.h
+generic-y += fcntl.h
+generic-y += ioctl.h
+generic-y += ipcbuf.h
+generic-y += kvm_para.h
+generic-y += mman.h
+generic-y += msgbuf.h
+generic-y += poll.h
+generic-y += resource.h
+generic-y += sembuf.h
+generic-y += shmbuf.h
 generic-y += siginfo.h
+generic-y += socket.h
+generic-y += sockios.h
+generic-y += statfs.h
+generic-y += types.h
diff --git a/arch/frv/include/asm/tlbflush.h b/arch/frv/include/asm/tlbflush.h
index 7ac5eafc5d98..75879420f578 100644
--- a/arch/frv/include/asm/tlbflush.h
+++ b/arch/frv/include/asm/tlbflush.h
@@ -18,10 +18,10 @@
 #ifdef CONFIG_MMU
 
 #ifndef __ASSEMBLY__
-extern void asmlinkage __flush_tlb_all(void);
-extern void asmlinkage __flush_tlb_mm(unsigned long contextid);
-extern void asmlinkage __flush_tlb_page(unsigned long contextid, unsigned long start);
-extern void asmlinkage __flush_tlb_range(unsigned long contextid,
+extern asmlinkage void __flush_tlb_all(void);
+extern asmlinkage void __flush_tlb_mm(unsigned long contextid);
+extern asmlinkage void __flush_tlb_page(unsigned long contextid, unsigned long start);
+extern asmlinkage void __flush_tlb_range(unsigned long contextid,
 					 unsigned long start, unsigned long end);
 #endif /* !__ASSEMBLY__ */
 
diff --git a/arch/h8300/include/asm/Kbuild b/arch/h8300/include/asm/Kbuild
index 99c824608a31..bc077491d299 100644
--- a/arch/h8300/include/asm/Kbuild
+++ b/arch/h8300/include/asm/Kbuild
@@ -1,5 +1,4 @@
 generic-y += asm-offsets.h
-generic-y += auxvec.h
 generic-y += barrier.h
 generic-y += bugs.h
 generic-y += cacheflush.h
@@ -11,66 +10,41 @@ generic-y += device.h
 generic-y += div64.h
 generic-y += dma.h
 generic-y += emergency-restart.h
-generic-y += errno.h
 generic-y += exec.h
 generic-y += extable.h
 generic-y += fb.h
-generic-y += fcntl.h
 generic-y += ftrace.h
 generic-y += futex.h
 generic-y += hardirq.h
 generic-y += hash.h
 generic-y += hw_irq.h
-generic-y += ioctl.h
-generic-y += ioctls.h
-generic-y += ipcbuf.h
 generic-y += irq_regs.h
 generic-y += irq_work.h
 generic-y += kdebug.h
 generic-y += kmap_types.h
-generic-y += kvm_para.h
+generic-y += kprobes.h
 generic-y += linkage.h
 generic-y += local.h
 generic-y += local64.h
 generic-y += mcs_spinlock.h
 generic-y += mm-arch-hooks.h
-generic-y += mman.h
 generic-y += mmu.h
 generic-y += mmu_context.h
 generic-y += module.h
-generic-y += msgbuf.h
-generic-y += param.h
 generic-y += parport.h
 generic-y += percpu.h
 generic-y += pgalloc.h
-generic-y += poll.h
-generic-y += posix_types.h
 generic-y += preempt.h
-generic-y += resource.h
 generic-y += scatterlist.h
 generic-y += sections.h
-generic-y += sembuf.h
 generic-y += serial.h
-generic-y += setup.h
-generic-y += shmbuf.h
-generic-y += shmparam.h
 generic-y += sizes.h
-generic-y += socket.h
-generic-y += sockios.h
 generic-y += spinlock.h
-generic-y += stat.h
-generic-y += statfs.h
-generic-y += swab.h
-generic-y += termbits.h
-generic-y += termios.h
 generic-y += timex.h
 generic-y += tlbflush.h
-generic-y += trace_clock.h
 generic-y += topology.h
-generic-y += types.h
-generic-y += ucontext.h
+generic-y += trace_clock.h
 generic-y += unaligned.h
 generic-y += vga.h
 generic-y += word-at-a-time.h
 generic-y += xor.h
-generic-y += kprobes.h
diff --git a/arch/h8300/include/asm/flat.h b/arch/h8300/include/asm/flat.h
index a4898eccf2bf..7e0bd6fa1532 100644
--- a/arch/h8300/include/asm/flat.h
+++ b/arch/h8300/include/asm/flat.h
@@ -5,6 +5,8 @@
 #ifndef __H8300_FLAT_H__
 #define __H8300_FLAT_H__
 
+#include <asm/unaligned.h>
+
 #define	flat_argvp_envp_on_stack()		1
 #define	flat_old_ram_flag(flags)		1
 #define	flat_reloc_valid(reloc, size)		((reloc) <= (size))
@@ -18,11 +20,21 @@
  */
 
 #define	flat_get_relocate_addr(rel)		(rel & ~0x00000001)
-#define flat_get_addr_from_rp(rp, relval, flags, persistent) \
-	({(void)persistent; \
-		get_unaligned(rp) & (((flags) & FLAT_FLAG_GOTPIC) ?	\
-				     0xffffffff : 0x00ffffff); })
-#define flat_put_addr_at_rp(rp, addr, rel) \
-	put_unaligned(((*(char *)(rp)) << 24) | ((addr) & 0x00ffffff), (rp))
+static inline int flat_get_addr_from_rp(u32 __user *rp, u32 relval, u32 flags,
+					u32 *addr, u32 *persistent)
+{
+	u32 val = get_unaligned((__force u32 *)rp);
+	if (!(flags & FLAT_FLAG_GOTPIC))
+		val &= 0x00ffffff;
+	*addr = val;
+	return 0;
+}
+
+static inline int flat_put_addr_at_rp(u32 __user *rp, u32 addr, u32 rel)
+{
+	u32 *p = (__force u32 *)rp;
+	put_unaligned((addr & 0x00ffffff) | (*(char *)p << 24), p);
+	return 0;
+}
 
 #endif /* __H8300_FLAT_H__ */
diff --git a/arch/h8300/include/uapi/asm/Kbuild b/arch/h8300/include/uapi/asm/Kbuild
index b55fc2ae1e8c..187aed820e71 100644
--- a/arch/h8300/include/uapi/asm/Kbuild
+++ b/arch/h8300/include/uapi/asm/Kbuild
@@ -1,4 +1,30 @@
 # UAPI Header export list
 include include/uapi/asm-generic/Kbuild.asm
 
+generic-y += auxvec.h
+generic-y += errno.h
+generic-y += fcntl.h
+generic-y += ioctl.h
+generic-y += ioctls.h
+generic-y += ipcbuf.h
+generic-y += kvm_para.h
+generic-y += mman.h
+generic-y += msgbuf.h
+generic-y += param.h
+generic-y += poll.h
+generic-y += posix_types.h
+generic-y += resource.h
+generic-y += sembuf.h
+generic-y += setup.h
+generic-y += shmbuf.h
+generic-y += shmparam.h
 generic-y += siginfo.h
+generic-y += socket.h
+generic-y += sockios.h
+generic-y += stat.h
+generic-y += statfs.h
+generic-y += swab.h
+generic-y += termbits.h
+generic-y += termios.h
+generic-y += types.h
+generic-y += ucontext.h
diff --git a/arch/hexagon/include/asm/Kbuild b/arch/hexagon/include/asm/Kbuild
index 0fc9cb04e6ad..34013683d123 100644
--- a/arch/hexagon/include/asm/Kbuild
+++ b/arch/hexagon/include/asm/Kbuild
@@ -1,4 +1,3 @@
-generic-y += auxvec.h
 generic-y += barrier.h
 generic-y += bug.h
 generic-y += bugs.h
@@ -7,53 +6,32 @@ generic-y += current.h
 generic-y += device.h
 generic-y += div64.h
 generic-y += emergency-restart.h
-generic-y += errno.h
 generic-y += extable.h
 generic-y += fb.h
-generic-y += fcntl.h
 generic-y += ftrace.h
 generic-y += hardirq.h
 generic-y += hw_irq.h
-generic-y += ioctl.h
-generic-y += ioctls.h
 generic-y += iomap.h
-generic-y += ipcbuf.h
 generic-y += irq_regs.h
 generic-y += irq_work.h
 generic-y += kdebug.h
 generic-y += kmap_types.h
+generic-y += kprobes.h
 generic-y += local.h
 generic-y += local64.h
 generic-y += mcs_spinlock.h
 generic-y += mm-arch-hooks.h
-generic-y += mman.h
-generic-y += msgbuf.h
 generic-y += pci.h
 generic-y += percpu.h
-generic-y += poll.h
-generic-y += posix_types.h
 generic-y += preempt.h
-generic-y += resource.h
 generic-y += rwsem.h
 generic-y += sections.h
 generic-y += segment.h
-generic-y += sembuf.h
 generic-y += serial.h
-generic-y += shmbuf.h
-generic-y += shmparam.h
 generic-y += sizes.h
-generic-y += socket.h
-generic-y += sockios.h
-generic-y += stat.h
-generic-y += statfs.h
-generic-y += termbits.h
-generic-y += termios.h
 generic-y += topology.h
 generic-y += trace_clock.h
-generic-y += types.h
-generic-y += ucontext.h
 generic-y += unaligned.h
 generic-y += vga.h
 generic-y += word-at-a-time.h
 generic-y += xor.h
-generic-y += kprobes.h
diff --git a/arch/hexagon/include/uapi/asm/Kbuild b/arch/hexagon/include/uapi/asm/Kbuild
index b55fc2ae1e8c..cb5df3aad3a8 100644
--- a/arch/hexagon/include/uapi/asm/Kbuild
+++ b/arch/hexagon/include/uapi/asm/Kbuild
@@ -1,4 +1,26 @@
 # UAPI Header export list
 include include/uapi/asm-generic/Kbuild.asm
 
+generic-y += auxvec.h
+generic-y += errno.h
+generic-y += fcntl.h
+generic-y += ioctl.h
+generic-y += ioctls.h
+generic-y += ipcbuf.h
+generic-y += mman.h
+generic-y += msgbuf.h
+generic-y += poll.h
+generic-y += posix_types.h
+generic-y += resource.h
+generic-y += sembuf.h
+generic-y += shmbuf.h
+generic-y += shmparam.h
 generic-y += siginfo.h
+generic-y += socket.h
+generic-y += sockios.h
+generic-y += stat.h
+generic-y += statfs.h
+generic-y += termbits.h
+generic-y += termios.h
+generic-y += types.h
+generic-y += ucontext.h
diff --git a/arch/ia64/include/asm/Kbuild b/arch/ia64/include/asm/Kbuild
index 502a91d8dbbd..1d7641f891e1 100644
--- a/arch/ia64/include/asm/Kbuild
+++ b/arch/ia64/include/asm/Kbuild
@@ -1,8 +1,6 @@
-
 generic-y += clkdev.h
 generic-y += exec.h
 generic-y += irq_work.h
-generic-y += kvm_para.h
 generic-y += mcs_spinlock.h
 generic-y += mm-arch-hooks.h
 generic-y += preempt.h
diff --git a/arch/ia64/include/asm/tlb.h b/arch/ia64/include/asm/tlb.h
index fced197b9626..cbe5ac3699bf 100644
--- a/arch/ia64/include/asm/tlb.h
+++ b/arch/ia64/include/asm/tlb.h
@@ -168,7 +168,8 @@ static inline void __tlb_alloc_page(struct mmu_gather *tlb)
 
 
 static inline void
-tlb_gather_mmu(struct mmu_gather *tlb, struct mm_struct *mm, unsigned long start, unsigned long end)
+arch_tlb_gather_mmu(struct mmu_gather *tlb, struct mm_struct *mm,
+			unsigned long start, unsigned long end)
 {
 	tlb->mm = mm;
 	tlb->max = ARRAY_SIZE(tlb->local);
@@ -185,8 +186,11 @@ tlb_gather_mmu(struct mmu_gather *tlb, struct mm_struct *mm, unsigned long start
  * collected.
  */
 static inline void
-tlb_finish_mmu(struct mmu_gather *tlb, unsigned long start, unsigned long end)
+arch_tlb_finish_mmu(struct mmu_gather *tlb,
+			unsigned long start, unsigned long end, bool force)
 {
+	if (force)
+		tlb->need_flush = 1;
 	/*
 	 * Note: tlb->nr may be 0 at this point, so we can't rely on tlb->start_addr and
 	 * tlb->end_addr.
diff --git a/arch/ia64/include/asm/uaccess.h b/arch/ia64/include/asm/uaccess.h
index b2106b01e84f..0890ded638f0 100644
--- a/arch/ia64/include/asm/uaccess.h
+++ b/arch/ia64/include/asm/uaccess.h
@@ -87,42 +87,6 @@ static inline int __access_ok(const void __user *p, unsigned long size)
 #define __put_user(x, ptr)	__put_user_nocheck((__typeof__(*(ptr))) (x), (ptr), sizeof(*(ptr)))
 #define __get_user(x, ptr)	__get_user_nocheck((x), (ptr), sizeof(*(ptr)))
 
-extern long __put_user_unaligned_unknown (void);
-
-#define __put_user_unaligned(x, ptr)								\
-({												\
-	long __ret;										\
-	switch (sizeof(*(ptr))) {								\
-		case 1: __ret = __put_user((x), (ptr)); break;					\
-		case 2: __ret = (__put_user((x), (u8 __user *)(ptr)))				\
-			| (__put_user((x) >> 8, ((u8 __user *)(ptr) + 1))); break;		\
-		case 4: __ret = (__put_user((x), (u16 __user *)(ptr)))				\
-			| (__put_user((x) >> 16, ((u16 __user *)(ptr) + 1))); break;		\
-		case 8: __ret = (__put_user((x), (u32 __user *)(ptr)))				\
-			| (__put_user((x) >> 32, ((u32 __user *)(ptr) + 1))); break;		\
-		default: __ret = __put_user_unaligned_unknown();				\
-	}											\
-	__ret;											\
-})
-
-extern long __get_user_unaligned_unknown (void);
-
-#define __get_user_unaligned(x, ptr)								\
-({												\
-	long __ret;										\
-	switch (sizeof(*(ptr))) {								\
-		case 1: __ret = __get_user((x), (ptr)); break;					\
-		case 2: __ret = (__get_user((x), (u8 __user *)(ptr)))				\
-			| (__get_user((x) >> 8, ((u8 __user *)(ptr) + 1))); break;		\
-		case 4: __ret = (__get_user((x), (u16 __user *)(ptr)))				\
-			| (__get_user((x) >> 16, ((u16 __user *)(ptr) + 1))); break;		\
-		case 8: __ret = (__get_user((x), (u32 __user *)(ptr)))				\
-			| (__get_user((x) >> 32, ((u32 __user *)(ptr) + 1))); break;		\
-		default: __ret = __get_user_unaligned_unknown();				\
-	}											\
-	__ret;											\
-})
-
 #ifdef ASM_SUPPORTED
   struct __large_struct { unsigned long buf[100]; };
 # define __m(x) (*(struct __large_struct __user *)(x))
diff --git a/arch/ia64/kernel/machine_kexec.c b/arch/ia64/kernel/machine_kexec.c
index 599507bcec91..c14815dca747 100644
--- a/arch/ia64/kernel/machine_kexec.c
+++ b/arch/ia64/kernel/machine_kexec.c
@@ -163,8 +163,3 @@ void arch_crash_save_vmcoreinfo(void)
 #endif
 }
 
-phys_addr_t paddr_vmcoreinfo_note(void)
-{
-	return ia64_tpa((unsigned long)(char *)&vmcoreinfo_note);
-}
-
diff --git a/arch/ia64/kernel/mca.c b/arch/ia64/kernel/mca.c
index 79c7c46d7dc1..555b11180156 100644
--- a/arch/ia64/kernel/mca.c
+++ b/arch/ia64/kernel/mca.c
@@ -334,7 +334,7 @@ static void ia64_mlogbuf_dump_from_init(void)
 	ia64_mlogbuf_dump();
 }
 
-static void inline
+static inline void
 ia64_mca_spin(const char *func)
 {
 	if (monarch_cpu == smp_processor_id())
diff --git a/arch/ia64/sn/pci/pcibr/pcibr_ate.c b/arch/ia64/sn/pci/pcibr/pcibr_ate.c
index 5bc34eac9e01..b67bb4cb73ff 100644
--- a/arch/ia64/sn/pci/pcibr/pcibr_ate.c
+++ b/arch/ia64/sn/pci/pcibr/pcibr_ate.c
@@ -140,7 +140,7 @@ static inline u64 __iomem *pcibr_ate_addr(struct pcibus_info *pcibus_info,
 /*
  * Update the ate.
  */
-void inline
+inline void
 ate_write(struct pcibus_info *pcibus_info, int ate_index, int count,
 	  volatile u64 ate)
 {
diff --git a/arch/ia64/sn/pci/tioce_provider.c b/arch/ia64/sn/pci/tioce_provider.c
index 46d3df4b03a1..3bd9abc35485 100644
--- a/arch/ia64/sn/pci/tioce_provider.c
+++ b/arch/ia64/sn/pci/tioce_provider.c
@@ -52,7 +52,7 @@
  * All registers defined in struct tioce will meet that criteria.
  */
 
-static void inline
+static inline void
 tioce_mmr_war_pre(struct tioce_kernel *kern, void __iomem *mmr_addr)
 {
 	u64 mmr_base;
@@ -78,7 +78,7 @@ tioce_mmr_war_pre(struct tioce_kernel *kern, void __iomem *mmr_addr)
 	}
 }
 
-static void inline
+static inline void
 tioce_mmr_war_post(struct tioce_kernel *kern, void __iomem *mmr_addr)
 {
 	u64 mmr_base;
diff --git a/arch/m32r/include/asm/Kbuild b/arch/m32r/include/asm/Kbuild
index c000ffac8586..7e11b125c35e 100644
--- a/arch/m32r/include/asm/Kbuild
+++ b/arch/m32r/include/asm/Kbuild
@@ -1,10 +1,9 @@
-
 generic-y += clkdev.h
 generic-y += current.h
 generic-y += exec.h
 generic-y += extable.h
 generic-y += irq_work.h
-generic-y += kvm_para.h
+generic-y += kprobes.h
 generic-y += mcs_spinlock.h
 generic-y += mm-arch-hooks.h
 generic-y += module.h
@@ -12,4 +11,3 @@ generic-y += preempt.h
 generic-y += sections.h
 generic-y += trace_clock.h
 generic-y += word-at-a-time.h
-generic-y += kprobes.h
diff --git a/arch/m32r/include/asm/flat.h b/arch/m32r/include/asm/flat.h
index 5d711c4688fb..455ce7ddbf14 100644
--- a/arch/m32r/include/asm/flat.h
+++ b/arch/m32r/include/asm/flat.h
@@ -17,11 +17,6 @@
 #define	flat_set_persistent(relval, p)		0
 #define	flat_reloc_valid(reloc, size)		\
 	(((reloc) - textlen_for_m32r_lo16_data) <= (size))
-#define flat_get_addr_from_rp(rp, relval, flags, persistent) \
-	m32r_flat_get_addr_from_rp(rp, relval, (text_len) )
-
-#define flat_put_addr_at_rp(rp, addr, relval) \
-	m32r_flat_put_addr_at_rp(rp, addr, relval)
 
 /* Convert a relocation entry into an address.  */
 static inline unsigned long
@@ -57,9 +52,9 @@ flat_get_relocate_addr (unsigned long relval)
 
 static unsigned long textlen_for_m32r_lo16_data = 0;
 
-static inline unsigned long m32r_flat_get_addr_from_rp (unsigned long *rp,
-                                                        unsigned long relval,
-						        unsigned long textlen)
+static inline unsigned long m32r_flat_get_addr_from_rp (u32 *rp,
+                                                        u32 relval,
+						        u32 textlen)
 {
         unsigned int reloc = flat_m32r_get_reloc_type (relval);
 	textlen_for_m32r_lo16_data = 0;
@@ -100,9 +95,7 @@ static inline unsigned long m32r_flat_get_addr_from_rp (unsigned long *rp,
 	return ~0;      /* bogus value */
 }
 
-static inline void m32r_flat_put_addr_at_rp (unsigned long *rp,
-					     unsigned long addr,
-                                             unsigned long relval)
+static inline void flat_put_addr_at_rp(u32 *rp, u32 addr, u32 relval)
 {
         unsigned int reloc = flat_m32r_get_reloc_type (relval);
 	if (reloc & 0xf0) {
@@ -142,4 +135,8 @@ static inline void m32r_flat_put_addr_at_rp (unsigned long *rp,
 	}
 }
 
+// kludge - text_len is a local variable in the only user.
+#define flat_get_addr_from_rp(rp, relval, flags, addr, persistent) \
+	(m32r_flat_get_addr_from_rp(rp, relval, text_len), 0)
+
 #endif /* __ASM_M32R_FLAT_H */
diff --git a/arch/m32r/include/uapi/asm/Kbuild b/arch/m32r/include/uapi/asm/Kbuild
index c94ee54210bc..1c44d3b3eba0 100644
--- a/arch/m32r/include/uapi/asm/Kbuild
+++ b/arch/m32r/include/uapi/asm/Kbuild
@@ -1,4 +1,5 @@
 # UAPI Header export list
 include include/uapi/asm-generic/Kbuild.asm
 
-generic-y	+= siginfo.h
+generic-y += kvm_para.h
+generic-y += siginfo.h
diff --git a/arch/m68k/coldfire/intc-simr.c b/arch/m68k/coldfire/intc-simr.c
index 7cf2c156f72d..15c4b7a6e38f 100644
--- a/arch/m68k/coldfire/intc-simr.c
+++ b/arch/m68k/coldfire/intc-simr.c
@@ -35,7 +35,7 @@
 #define	EINT7	67	/* EDGE Port interrupt 7 */
 
 static unsigned int irqebitmap[] = { 0, 1, 4, 7 };
-static unsigned int inline irq2ebit(unsigned int irq)
+static inline unsigned int irq2ebit(unsigned int irq)
 {
 	return irqebitmap[irq - EINT0];
 }
@@ -51,7 +51,7 @@ static unsigned int inline irq2ebit(unsigned int irq)
 #define	EINT1	65	/* EDGE Port interrupt 1 */
 #define	EINT7	71	/* EDGE Port interrupt 7 */
 
-static unsigned int inline irq2ebit(unsigned int irq)
+static inline unsigned int irq2ebit(unsigned int irq)
 {
 	return irq - EINT0;
 }
diff --git a/arch/m68k/include/asm/Kbuild b/arch/m68k/include/asm/Kbuild
index 5ecf4e47b2e2..59d6d0d38f67 100644
--- a/arch/m68k/include/asm/Kbuild
+++ b/arch/m68k/include/asm/Kbuild
@@ -1,36 +1,25 @@
 generic-y += barrier.h
-generic-y += bitsperlong.h
 generic-y += clkdev.h
 generic-y += device.h
 generic-y += emergency-restart.h
-generic-y += errno.h
 generic-y += exec.h
 generic-y += extable.h
 generic-y += futex.h
 generic-y += hw_irq.h
-generic-y += ioctl.h
-generic-y += ipcbuf.h
 generic-y += irq_regs.h
 generic-y += irq_work.h
 generic-y += kdebug.h
 generic-y += kmap_types.h
-generic-y += kvm_para.h
+generic-y += kprobes.h
 generic-y += local.h
 generic-y += local64.h
 generic-y += mcs_spinlock.h
 generic-y += mm-arch-hooks.h
-generic-y += mman.h
 generic-y += percpu.h
 generic-y += preempt.h
-generic-y += resource.h
 generic-y += sections.h
-generic-y += shmparam.h
 generic-y += spinlock.h
-generic-y += statfs.h
-generic-y += termios.h
 generic-y += topology.h
 generic-y += trace_clock.h
-generic-y += types.h
 generic-y += word-at-a-time.h
 generic-y += xor.h
-generic-y += kprobes.h
diff --git a/arch/m68k/include/asm/flat.h b/arch/m68k/include/asm/flat.h
index 00c392b0cabd..b2a41f5b3890 100644
--- a/arch/m68k/include/asm/flat.h
+++ b/arch/m68k/include/asm/flat.h
@@ -5,16 +5,32 @@
 #ifndef __M68KNOMMU_FLAT_H__
 #define __M68KNOMMU_FLAT_H__
 
+#include <linux/uaccess.h>
+
 #define	flat_argvp_envp_on_stack()		1
 #define	flat_old_ram_flag(flags)		(flags)
 #define	flat_reloc_valid(reloc, size)		((reloc) <= (size))
-#define	flat_get_addr_from_rp(rp, relval, flags, p) \
-	({ unsigned long __val; __get_user_unaligned(__val, rp); __val; })
-#define	flat_put_addr_at_rp(rp, val, relval)	__put_user_unaligned(val, rp)
+static inline int flat_get_addr_from_rp(u32 __user *rp, u32 relval, u32 flags,
+					u32 *addr, u32 *persistent)
+{
+#ifdef CONFIG_CPU_HAS_NO_UNALIGNED
+	return copy_from_user(addr, rp, 4) ? -EFAULT : 0;
+#else
+	return get_user(*addr, rp);
+#endif
+}
+
+static inline int flat_put_addr_at_rp(u32 __user *rp, u32 addr, u32 rel)
+{
+#ifdef CONFIG_CPU_HAS_NO_UNALIGNED
+	return copy_to_user(rp, &addr, 4) ? -EFAULT : 0;
+#else
+	return put_user(addr, rp);
+#endif
+}
 #define	flat_get_relocate_addr(rel)		(rel)
 
-static inline int flat_set_persistent(unsigned long relval,
-				      unsigned long *persistent)
+static inline int flat_set_persistent(u32 relval, u32 *persistent)
 {
 	return 0;
 }
diff --git a/arch/m68k/include/asm/uaccess.h b/arch/m68k/include/asm/uaccess.h
index 67b3481d6020..63ba18e4c9a2 100644
--- a/arch/m68k/include/asm/uaccess.h
+++ b/arch/m68k/include/asm/uaccess.h
@@ -3,11 +3,4 @@
 #else
 #include <asm/uaccess_mm.h>
 #endif
-
 #include <asm/extable.h>
-#ifdef CONFIG_CPU_HAS_NO_UNALIGNED
-#include <asm-generic/uaccess-unaligned.h>
-#else
-#define __get_user_unaligned(x, ptr)	__get_user((x), (ptr))
-#define __put_user_unaligned(x, ptr)	__put_user((x), (ptr))
-#endif
diff --git a/arch/m68k/include/uapi/asm/Kbuild b/arch/m68k/include/uapi/asm/Kbuild
index 68b45cc87e2c..3717b64a620d 100644
--- a/arch/m68k/include/uapi/asm/Kbuild
+++ b/arch/m68k/include/uapi/asm/Kbuild
@@ -2,11 +2,21 @@
 include include/uapi/asm-generic/Kbuild.asm
 
 generic-y += auxvec.h
+generic-y += bitsperlong.h
+generic-y += errno.h
+generic-y += ioctl.h
+generic-y += ipcbuf.h
+generic-y += kvm_para.h
+generic-y += mman.h
 generic-y += msgbuf.h
+generic-y += resource.h
 generic-y += sembuf.h
 generic-y += shmbuf.h
+generic-y += shmparam.h
 generic-y += siginfo.h
 generic-y += socket.h
 generic-y += sockios.h
+generic-y += statfs.h
 generic-y += termbits.h
 generic-y += termios.h
+generic-y += types.h
diff --git a/arch/metag/include/asm/Kbuild b/arch/metag/include/asm/Kbuild
index 8f940553a579..3fba97ed9bb2 100644
--- a/arch/metag/include/asm/Kbuild
+++ b/arch/metag/include/asm/Kbuild
@@ -1,58 +1,34 @@
-generic-y += auxvec.h
-generic-y += bitsperlong.h
 generic-y += bugs.h
 generic-y += clkdev.h
 generic-y += current.h
 generic-y += device.h
 generic-y += dma.h
 generic-y += emergency-restart.h
-generic-y += errno.h
 generic-y += exec.h
 generic-y += extable.h
 generic-y += fb.h
-generic-y += fcntl.h
 generic-y += futex.h
 generic-y += hardirq.h
 generic-y += hw_irq.h
-generic-y += ioctl.h
-generic-y += ioctls.h
-generic-y += ipcbuf.h
 generic-y += irq_regs.h
 generic-y += irq_work.h
 generic-y += kdebug.h
 generic-y += kmap_types.h
-generic-y += kvm_para.h
+generic-y += kprobes.h
 generic-y += local.h
 generic-y += local64.h
 generic-y += mcs_spinlock.h
 generic-y += mm-arch-hooks.h
-generic-y += msgbuf.h
-generic-y += param.h
 generic-y += pci.h
 generic-y += percpu.h
-generic-y += poll.h
-generic-y += posix_types.h
 generic-y += preempt.h
 generic-y += sections.h
-generic-y += sembuf.h
 generic-y += serial.h
-generic-y += shmbuf.h
-generic-y += shmparam.h
-generic-y += signal.h
-generic-y += socket.h
-generic-y += sockios.h
-generic-y += stat.h
-generic-y += statfs.h
 generic-y += switch_to.h
-generic-y += termbits.h
-generic-y += termios.h
 generic-y += timex.h
 generic-y += trace_clock.h
-generic-y += types.h
-generic-y += ucontext.h
 generic-y += unaligned.h
 generic-y += user.h
 generic-y += vga.h
 generic-y += word-at-a-time.h
 generic-y += xor.h
-generic-y += kprobes.h
diff --git a/arch/metag/include/uapi/asm/Kbuild b/arch/metag/include/uapi/asm/Kbuild
index b29731ebd7a9..6ac763d9a3e3 100644
--- a/arch/metag/include/uapi/asm/Kbuild
+++ b/arch/metag/include/uapi/asm/Kbuild
@@ -1,6 +1,30 @@
 # UAPI Header export list
 include include/uapi/asm-generic/Kbuild.asm
 
+generic-y += auxvec.h
+generic-y += bitsperlong.h
+generic-y += errno.h
+generic-y += fcntl.h
+generic-y += ioctl.h
+generic-y += ioctls.h
+generic-y += ipcbuf.h
+generic-y += kvm_para.h
 generic-y += mman.h
+generic-y += msgbuf.h
+generic-y += param.h
+generic-y += poll.h
+generic-y += posix_types.h
 generic-y += resource.h
+generic-y += sembuf.h
 generic-y += setup.h
+generic-y += shmbuf.h
+generic-y += shmparam.h
+generic-y += signal.h
+generic-y += socket.h
+generic-y += sockios.h
+generic-y += stat.h
+generic-y += statfs.h
+generic-y += termbits.h
+generic-y += termios.h
+generic-y += types.h
+generic-y += ucontext.h
diff --git a/arch/microblaze/include/asm/Kbuild b/arch/microblaze/include/asm/Kbuild
index 83a4ef3a2495..9d66f7793841 100644
--- a/arch/microblaze/include/asm/Kbuild
+++ b/arch/microblaze/include/asm/Kbuild
@@ -1,22 +1,15 @@
-
 generic-y += barrier.h
 generic-y += bitops.h
-generic-y += bitsperlong.h
 generic-y += bug.h
 generic-y += bugs.h
 generic-y += clkdev.h
 generic-y += device.h
 generic-y += div64.h
 generic-y += emergency-restart.h
-generic-y += errno.h
 generic-y += exec.h
 generic-y += extable.h
 generic-y += fb.h
-generic-y += fcntl.h
 generic-y += hardirq.h
-generic-y += ioctl.h
-generic-y += ioctls.h
-generic-y += ipcbuf.h
 generic-y += irq_regs.h
 generic-y += irq_work.h
 generic-y += kdebug.h
@@ -27,31 +20,13 @@ generic-y += local.h
 generic-y += local64.h
 generic-y += mcs_spinlock.h
 generic-y += mm-arch-hooks.h
-generic-y += mman.h
-generic-y += msgbuf.h
-generic-y += param.h
 generic-y += parport.h
 generic-y += percpu.h
-generic-y += poll.h
 generic-y += preempt.h
-generic-y += resource.h
-generic-y += sembuf.h
 generic-y += serial.h
-generic-y += shmbuf.h
-generic-y += shmparam.h
-generic-y += siginfo.h
-generic-y += signal.h
-generic-y += socket.h
-generic-y += sockios.h
-generic-y += stat.h
-generic-y += statfs.h
-generic-y += swab.h
 generic-y += syscalls.h
-generic-y += termbits.h
-generic-y += termios.h
 generic-y += topology.h
 generic-y += trace_clock.h
-generic-y += ucontext.h
 generic-y += vga.h
 generic-y += word-at-a-time.h
 generic-y += xor.h
diff --git a/arch/microblaze/include/asm/flat.h b/arch/microblaze/include/asm/flat.h
index 6847c1512c7b..f23c3d266bae 100644
--- a/arch/microblaze/include/asm/flat.h
+++ b/arch/microblaze/include/asm/flat.h
@@ -32,29 +32,27 @@
  * reference
  */
 
-static inline unsigned long
-flat_get_addr_from_rp(unsigned long *rp, unsigned long relval,
-			unsigned long flags, unsigned long *persistent)
+static inline int flat_get_addr_from_rp(u32 __user *rp, u32 relval, u32 flags,
+					u32 *addr, u32 *persistent)
 {
-	unsigned long addr;
-	(void)flags;
+	u32 *p = (__force u32 *)rp;
 
 	/* Is it a split 64/32 reference? */
 	if (relval & 0x80000000) {
 		/* Grab the two halves of the reference */
-		unsigned long val_hi, val_lo;
+		u32 val_hi, val_lo;
 
-		val_hi = get_unaligned(rp);
-		val_lo = get_unaligned(rp+1);
+		val_hi = get_unaligned(p);
+		val_lo = get_unaligned(p+1);
 
 		/* Crack the address out */
-		addr = ((val_hi & 0xffff) << 16) + (val_lo & 0xffff);
+		*addr = ((val_hi & 0xffff) << 16) + (val_lo & 0xffff);
 	} else {
 		/* Get the address straight out */
-		addr = get_unaligned(rp);
+		*addr = get_unaligned(p);
 	}
 
-	return addr;
+	return 0;
 }
 
 /*
@@ -63,25 +61,27 @@ flat_get_addr_from_rp(unsigned long *rp, unsigned long relval,
  */
 
 static inline void
-flat_put_addr_at_rp(unsigned long *rp, unsigned long addr, unsigned long relval)
+flat_put_addr_at_rp(u32 __user *rp, u32 addr, u32 relval)
 {
+	u32 *p = (__force u32 *)rp;
 	/* Is this a split 64/32 reloc? */
 	if (relval & 0x80000000) {
 		/* Get the two "halves" */
-		unsigned long val_hi = get_unaligned(rp);
-		unsigned long val_lo = get_unaligned(rp + 1);
+		unsigned long val_hi = get_unaligned(p);
+		unsigned long val_lo = get_unaligned(p + 1);
 
 		/* insert the address */
 		val_hi = (val_hi & 0xffff0000) | addr >> 16;
 		val_lo = (val_lo & 0xffff0000) | (addr & 0xffff);
 
 		/* store the two halves back into memory */
-		put_unaligned(val_hi, rp);
-		put_unaligned(val_lo, rp+1);
+		put_unaligned(val_hi, p);
+		put_unaligned(val_lo, p+1);
 	} else {
 		/* Put it straight in, no messing around */
-		put_unaligned(addr, rp);
+		put_unaligned(addr, p);
 	}
+	return 0;
 }
 
 #define	flat_get_relocate_addr(rel)	(rel & 0x7fffffff)
diff --git a/arch/microblaze/include/uapi/asm/Kbuild b/arch/microblaze/include/uapi/asm/Kbuild
index cb6784f4a427..e77a596f3f1e 100644
--- a/arch/microblaze/include/uapi/asm/Kbuild
+++ b/arch/microblaze/include/uapi/asm/Kbuild
@@ -1,5 +1,28 @@
 # UAPI Header export list
 include include/uapi/asm-generic/Kbuild.asm
 
-generic-y += types.h
+generic-y += bitsperlong.h
+generic-y += errno.h
+generic-y += fcntl.h
+generic-y += ioctl.h
+generic-y += ioctls.h
+generic-y += ipcbuf.h
+generic-y += mman.h
+generic-y += msgbuf.h
+generic-y += param.h
+generic-y += poll.h
+generic-y += resource.h
+generic-y += sembuf.h
+generic-y += shmbuf.h
+generic-y += shmparam.h
 generic-y += siginfo.h
+generic-y += signal.h
+generic-y += socket.h
+generic-y += sockios.h
+generic-y += stat.h
+generic-y += statfs.h
+generic-y += swab.h
+generic-y += termbits.h
+generic-y += termios.h
+generic-y += types.h
+generic-y += ucontext.h
diff --git a/arch/mips/Kconfig b/arch/mips/Kconfig
index 45bcd1cfcec0..48d91d5be4e9 100644
--- a/arch/mips/Kconfig
+++ b/arch/mips/Kconfig
@@ -1,75 +1,77 @@
 config MIPS
 	bool
 	default y
-	select ARCH_SUPPORTS_UPROBES
+	select ARCH_BINFMT_ELF_STATE
+	select ARCH_CLOCKSOURCE_DATA
+	select ARCH_DISCARD_MEMBLOCK
+	select ARCH_HAS_ELF_RANDOMIZE
+	select ARCH_HAS_TICK_BROADCAST if GENERIC_CLOCKEVENTS_BROADCAST
 	select ARCH_MIGHT_HAVE_PC_PARPORT
 	select ARCH_MIGHT_HAVE_PC_SERIO
-	select ARCH_USE_CMPXCHG_LOCKREF if 64BIT
+	select ARCH_SUPPORTS_UPROBES
 	select ARCH_USE_BUILTIN_BSWAP
-	select HAVE_CONTEXT_TRACKING
-	select HAVE_GENERIC_DMA_COHERENT
-	select HAVE_IDE
-	select HAVE_IRQ_EXIT_ON_IRQ_STACK
-	select HAVE_OPROFILE
-	select HAVE_PERF_EVENTS
-	select PERF_USE_VMALLOC
+	select ARCH_USE_CMPXCHG_LOCKREF if 64BIT
+	select ARCH_USE_QUEUED_RWLOCKS
+	select ARCH_USE_QUEUED_SPINLOCKS
+	select ARCH_WANT_IPC_PARSE_VERSION
+	select BUILDTIME_EXTABLE_SORT
+	select CLONE_BACKWARDS
+	select CPU_PM if CPU_IDLE
+	select GENERIC_ATOMIC64 if !64BIT
+	select GENERIC_CLOCKEVENTS
+	select GENERIC_CMOS_UPDATE
+	select GENERIC_CPU_AUTOPROBE
+	select GENERIC_IRQ_PROBE
+	select GENERIC_IRQ_SHOW
+	select GENERIC_PCI_IOMAP
+	select GENERIC_SCHED_CLOCK if !CAVIUM_OCTEON_SOC
+	select GENERIC_SMP_IDLE_THREAD
+	select GENERIC_TIME_VSYSCALL
+	select HANDLE_DOMAIN_IRQ
+	select HAVE_ARCH_JUMP_LABEL
 	select HAVE_ARCH_KGDB
 	select HAVE_ARCH_MMAP_RND_BITS if MMU
 	select HAVE_ARCH_MMAP_RND_COMPAT_BITS if MMU && COMPAT
 	select HAVE_ARCH_SECCOMP_FILTER
 	select HAVE_ARCH_TRACEHOOK
-	select HAVE_CBPF_JIT if !CPU_MICROMIPS
-	select HAVE_FUNCTION_TRACER
+	select HAVE_ARCH_TRANSPARENT_HUGEPAGE if CPU_SUPPORTS_HUGEPAGES && 64BIT
+	select HAVE_CBPF_JIT if (!64BIT && !CPU_MICROMIPS)
+	select HAVE_EBPF_JIT if (64BIT && !CPU_MICROMIPS)
+	select HAVE_CC_STACKPROTECTOR
+	select HAVE_CONTEXT_TRACKING
+	select HAVE_COPY_THREAD_TLS
+	select HAVE_C_RECORDMCOUNT
+	select HAVE_DEBUG_KMEMLEAK
+	select HAVE_DEBUG_STACKOVERFLOW
+	select HAVE_DMA_API_DEBUG
+	select HAVE_DMA_CONTIGUOUS
 	select HAVE_DYNAMIC_FTRACE
+	select HAVE_EXIT_THREAD
 	select HAVE_FTRACE_MCOUNT_RECORD
-	select HAVE_C_RECORDMCOUNT
 	select HAVE_FUNCTION_GRAPH_TRACER
+	select HAVE_FUNCTION_TRACER
+	select HAVE_GENERIC_DMA_COHERENT
+	select HAVE_IDE
+	select HAVE_IRQ_EXIT_ON_IRQ_STACK
+	select HAVE_IRQ_TIME_ACCOUNTING
 	select HAVE_KPROBES
 	select HAVE_KRETPROBES
-	select HAVE_SYSCALL_TRACEPOINTS
-	select HAVE_DEBUG_KMEMLEAK
-	select HAVE_SYSCALL_TRACEPOINTS
-	select ARCH_HAS_ELF_RANDOMIZE
-	select HAVE_ARCH_TRANSPARENT_HUGEPAGE if CPU_SUPPORTS_HUGEPAGES && 64BIT
-	select RTC_LIB if !MACH_LOONGSON64
-	select GENERIC_ATOMIC64 if !64BIT
-	select HAVE_DMA_CONTIGUOUS
-	select HAVE_DMA_API_DEBUG
-	select GENERIC_IRQ_PROBE
-	select GENERIC_IRQ_SHOW
-	select GENERIC_PCI_IOMAP
-	select HAVE_ARCH_JUMP_LABEL
-	select ARCH_WANT_IPC_PARSE_VERSION
-	select IRQ_FORCED_THREADING
 	select HAVE_MEMBLOCK
 	select HAVE_MEMBLOCK_NODE_MAP
-	select ARCH_DISCARD_MEMBLOCK
-	select GENERIC_SMP_IDLE_THREAD
-	select BUILDTIME_EXTABLE_SORT
-	select GENERIC_CPU_AUTOPROBE
-	select GENERIC_CLOCKEVENTS
-	select GENERIC_SCHED_CLOCK if !CAVIUM_OCTEON_SOC
-	select GENERIC_CMOS_UPDATE
 	select HAVE_MOD_ARCH_SPECIFIC
 	select HAVE_NMI
-	select VIRT_TO_BUS
-	select MODULES_USE_ELF_REL if MODULES
+	select HAVE_OPROFILE
+	select HAVE_PERF_EVENTS
+	select HAVE_REGS_AND_STACK_ACCESS_API
+	select HAVE_SYSCALL_TRACEPOINTS
+	select HAVE_VIRT_CPU_ACCOUNTING_GEN
+	select IRQ_FORCED_THREADING
 	select MODULES_USE_ELF_RELA if MODULES && 64BIT
-	select CLONE_BACKWARDS
-	select HAVE_DEBUG_STACKOVERFLOW
-	select HAVE_CC_STACKPROTECTOR
-	select CPU_PM if CPU_IDLE
-	select ARCH_HAS_TICK_BROADCAST if GENERIC_CLOCKEVENTS_BROADCAST
-	select ARCH_BINFMT_ELF_STATE
+	select MODULES_USE_ELF_REL if MODULES
+	select PERF_USE_VMALLOC
+	select RTC_LIB if !MACH_LOONGSON64
 	select SYSCTL_EXCEPTION_TRACE
-	select HAVE_VIRT_CPU_ACCOUNTING_GEN
-	select HAVE_IRQ_TIME_ACCOUNTING
-	select GENERIC_TIME_VSYSCALL
-	select ARCH_CLOCKSOURCE_DATA
-	select HANDLE_DOMAIN_IRQ
-	select HAVE_EXIT_THREAD
-	select HAVE_REGS_AND_STACK_ACCESS_API
-	select HAVE_COPY_THREAD_TLS
+	select VIRT_TO_BUS
 
 menu "Machine selection"
 
@@ -1179,6 +1181,15 @@ config SYS_SUPPORTS_RELOCATABLE
 	 The platform must provide plat_get_fdt() if it selects CONFIG_USE_OF
 	 to allow access to command line and entropy sources.
 
+config MIPS_CBPF_JIT
+	def_bool y
+	depends on BPF_JIT && HAVE_CBPF_JIT
+
+config MIPS_EBPF_JIT
+	def_bool y
+	depends on BPF_JIT && HAVE_EBPF_JIT
+
+
 #
 # Endianness selection.  Sufficiently obscure so many users don't know what to
 # answer,so we try hard to limit the available choices.  Also the use of a
@@ -2062,7 +2073,7 @@ config CPU_SUPPORTS_UNCACHED_ACCELERATED
 	bool
 config MIPS_PGD_C0_CONTEXT
 	bool
-	default y if 64BIT && CPU_MIPSR2 && !CPU_XLP
+	default y if 64BIT && (CPU_MIPSR2 || CPU_MIPSR6) && !CPU_XLP
 
 #
 # Set to y for ptrace access to watch registers.
@@ -2249,7 +2260,7 @@ config CPU_R4K_CACHE_TLB
 
 config MIPS_MT_SMP
 	bool "MIPS MT SMP support (1 TC on each available VPE)"
-	depends on SYS_SUPPORTS_MULTITHREADING && !CPU_MIPSR6
+	depends on SYS_SUPPORTS_MULTITHREADING && !CPU_MIPSR6 && !CPU_MICROMIPS
 	select CPU_MIPSR2_IRQ_VI
 	select CPU_MIPSR2_IRQ_EI
 	select SYNC_R4K
@@ -2370,6 +2381,7 @@ config MIPS_CPS
 	select SMP
 	select SYNC_R4K if (CEVT_R4K || CSRC_R4K)
 	select SYS_SUPPORTS_HOTPLUG_CPU
+	select SYS_SUPPORTS_SCHED_SMT if CPU_MIPSR6
 	select SYS_SUPPORTS_SMP
 	select WEAK_ORDERING
 	help
diff --git a/arch/mips/Makefile b/arch/mips/Makefile
index 02a1787c888c..bc2708c9ada4 100644
--- a/arch/mips/Makefile
+++ b/arch/mips/Makefile
@@ -160,7 +160,7 @@ cflags-$(CONFIG_CPU_MIPS32_R1)	+= $(call cc-option,-march=mips32,-mips32 -U_MIPS
 			-Wa,-mips32 -Wa,--trap
 cflags-$(CONFIG_CPU_MIPS32_R2)	+= $(call cc-option,-march=mips32r2,-mips32r2 -U_MIPS_ISA -D_MIPS_ISA=_MIPS_ISA_MIPS32) \
 			-Wa,-mips32r2 -Wa,--trap
-cflags-$(CONFIG_CPU_MIPS32_R6)	+= -march=mips32r6 -Wa,--trap
+cflags-$(CONFIG_CPU_MIPS32_R6)	+= -march=mips32r6 -Wa,--trap -modd-spreg
 cflags-$(CONFIG_CPU_MIPS64_R1)	+= $(call cc-option,-march=mips64,-mips64 -U_MIPS_ISA -D_MIPS_ISA=_MIPS_ISA_MIPS64) \
 			-Wa,-mips64 -Wa,--trap
 cflags-$(CONFIG_CPU_MIPS64_R2)	+= $(call cc-option,-march=mips64r2,-mips64r2 -U_MIPS_ISA -D_MIPS_ISA=_MIPS_ISA_MIPS64) \
@@ -243,8 +243,21 @@ include arch/mips/Kbuild.platforms
 ifdef CONFIG_PHYSICAL_START
 load-y					= $(CONFIG_PHYSICAL_START)
 endif
-entry-y				= 0x$(shell $(NM) vmlinux 2>/dev/null \
+
+entry-noisa-y				= 0x$(shell $(NM) vmlinux 2>/dev/null \
 					| grep "\bkernel_entry\b" | cut -f1 -d \ )
+ifdef CONFIG_CPU_MICROMIPS
+  #
+  # Set the ISA bit, since the kernel_entry symbol in the ELF will have it
+  # clear which would lead to images containing addresses which bootloaders may
+  # jump to as MIPS32 code.
+  #
+  entry-y = $(patsubst %0,%1,$(patsubst %2,%3,$(patsubst %4,%5, \
+              $(patsubst %6,%7,$(patsubst %8,%9,$(patsubst %a,%b, \
+              $(patsubst %c,%d,$(patsubst %e,%f,$(entry-noisa-y)))))))))
+else
+  entry-y = $(entry-noisa-y)
+endif
 
 cflags-y			+= -I$(srctree)/arch/mips/include/asm/mach-generic
 drivers-$(CONFIG_PCI)		+= arch/mips/pci/
diff --git a/arch/mips/boot/compressed/.gitignore b/arch/mips/boot/compressed/.gitignore
new file mode 100644
index 000000000000..ebae133f1d00
--- /dev/null
+++ b/arch/mips/boot/compressed/.gitignore
@@ -0,0 +1,2 @@
+ashldi3.c
+bswapsi.c
diff --git a/arch/mips/boot/dts/img/Makefile b/arch/mips/boot/dts/img/Makefile
index 69a65f0f82d2..3d70958d0f5a 100644
--- a/arch/mips/boot/dts/img/Makefile
+++ b/arch/mips/boot/dts/img/Makefile
@@ -1,6 +1,7 @@
-dtb-$(CONFIG_MACH_PISTACHIO)	+= pistachio_marduk.dtb
+dtb-$(CONFIG_FIT_IMAGE_FDT_BOSTON)	+= boston.dtb
 
-obj-y				+= $(patsubst %.dtb, %.dtb.o, $(dtb-y))
+dtb-$(CONFIG_MACH_PISTACHIO)	+= pistachio_marduk.dtb
+obj-$(CONFIG_MACH_PISTACHIO)	+= pistachio_marduk.dtb.o
 
 # Force kbuild to make empty built-in.o if necessary
 obj-				+= dummy.o
diff --git a/arch/mips/boot/dts/img/boston.dts b/arch/mips/boot/dts/img/boston.dts
new file mode 100644
index 000000000000..53bfa29a7093
--- /dev/null
+++ b/arch/mips/boot/dts/img/boston.dts
@@ -0,0 +1,224 @@
+/dts-v1/;
+
+#include <dt-bindings/clock/boston-clock.h>
+#include <dt-bindings/gpio/gpio.h>
+#include <dt-bindings/interrupt-controller/irq.h>
+#include <dt-bindings/interrupt-controller/mips-gic.h>
+
+/ {
+	#address-cells = <1>;
+	#size-cells = <1>;
+	compatible = "img,boston";
+
+	chosen {
+		stdout-path = "uart0:115200";
+	};
+
+	aliases {
+		uart0 = &uart0;
+	};
+
+	cpus {
+		#address-cells = <1>;
+		#size-cells = <0>;
+
+		cpu@0 {
+			device_type = "cpu";
+			compatible = "img,mips";
+			reg = <0>;
+			clocks = <&clk_boston BOSTON_CLK_CPU>;
+		};
+	};
+
+	memory@0 {
+		device_type = "memory";
+		reg = <0x00000000 0x10000000>;
+	};
+
+	pci0: pci@10000000 {
+		compatible = "xlnx,axi-pcie-host-1.00.a";
+		device_type = "pci";
+		reg = <0x10000000 0x2000000>;
+
+		#address-cells = <3>;
+		#size-cells = <2>;
+		#interrupt-cells = <1>;
+
+		interrupt-parent = <&gic>;
+		interrupts = <GIC_SHARED 2 IRQ_TYPE_LEVEL_HIGH>;
+
+		ranges = <0x02000000 0 0x40000000
+			  0x40000000 0 0x40000000>;
+
+		interrupt-map-mask = <0 0 0 7>;
+		interrupt-map = <0 0 0 1 &pci0_intc 1>,
+				<0 0 0 2 &pci0_intc 2>,
+				<0 0 0 3 &pci0_intc 3>,
+				<0 0 0 4 &pci0_intc 4>;
+
+		pci0_intc: interrupt-controller {
+			interrupt-controller;
+			#address-cells = <0>;
+			#interrupt-cells = <1>;
+		};
+	};
+
+	pci1: pci@12000000 {
+		compatible = "xlnx,axi-pcie-host-1.00.a";
+		device_type = "pci";
+		reg = <0x12000000 0x2000000>;
+
+		#address-cells = <3>;
+		#size-cells = <2>;
+		#interrupt-cells = <1>;
+
+		interrupt-parent = <&gic>;
+		interrupts = <GIC_SHARED 1 IRQ_TYPE_LEVEL_HIGH>;
+
+		ranges = <0x02000000 0 0x20000000
+			  0x20000000 0 0x20000000>;
+
+		interrupt-map-mask = <0 0 0 7>;
+		interrupt-map = <0 0 0 1 &pci1_intc 1>,
+				<0 0 0 2 &pci1_intc 2>,
+				<0 0 0 3 &pci1_intc 3>,
+				<0 0 0 4 &pci1_intc 4>;
+
+		pci1_intc: interrupt-controller {
+			interrupt-controller;
+			#address-cells = <0>;
+			#interrupt-cells = <1>;
+		};
+	};
+
+	pci2: pci@14000000 {
+		compatible = "xlnx,axi-pcie-host-1.00.a";
+		device_type = "pci";
+		reg = <0x14000000 0x2000000>;
+
+		#address-cells = <3>;
+		#size-cells = <2>;
+		#interrupt-cells = <1>;
+
+		interrupt-parent = <&gic>;
+		interrupts = <GIC_SHARED 0 IRQ_TYPE_LEVEL_HIGH>;
+
+		ranges = <0x02000000 0 0x16000000
+			  0x16000000 0 0x100000>;
+
+		interrupt-map-mask = <0 0 0 7>;
+		interrupt-map = <0 0 0 1 &pci2_intc 1>,
+				<0 0 0 2 &pci2_intc 2>,
+				<0 0 0 3 &pci2_intc 3>,
+				<0 0 0 4 &pci2_intc 4>;
+
+		pci2_intc: interrupt-controller {
+			interrupt-controller;
+			#address-cells = <0>;
+			#interrupt-cells = <1>;
+		};
+
+		pci2_root@0,0,0 {
+			compatible = "pci10ee,7021";
+			reg = <0x00000000 0 0 0 0>;
+
+			#address-cells = <3>;
+			#size-cells = <2>;
+			#interrupt-cells = <1>;
+
+			eg20t_bridge@1,0,0 {
+				compatible = "pci8086,8800";
+				reg = <0x00010000 0 0 0 0>;
+
+				#address-cells = <3>;
+				#size-cells = <2>;
+				#interrupt-cells = <1>;
+
+				eg20t_mac@2,0,1 {
+					compatible = "pci8086,8802";
+					reg = <0x00020100 0 0 0 0>;
+					phy-reset-gpios = <&eg20t_gpio 6
+							   GPIO_ACTIVE_LOW>;
+				};
+
+				eg20t_gpio: eg20t_gpio@2,0,2 {
+					compatible = "pci8086,8803";
+					reg = <0x00020200 0 0 0 0>;
+
+					gpio-controller;
+					#gpio-cells = <2>;
+				};
+
+				eg20t_i2c@2,12,2 {
+					compatible = "pci8086,8817";
+					reg = <0x00026200 0 0 0 0>;
+
+					#address-cells = <1>;
+					#size-cells = <0>;
+
+					rtc@0x68 {
+						compatible = "st,m41t81s";
+						reg = <0x68>;
+					};
+				};
+			};
+		};
+	};
+
+	gic: interrupt-controller@16120000 {
+		compatible = "mti,gic";
+		reg = <0x16120000 0x20000>;
+
+		interrupt-controller;
+		#interrupt-cells = <3>;
+
+		timer {
+			compatible = "mti,gic-timer";
+			interrupts = <GIC_LOCAL 1 IRQ_TYPE_NONE>;
+			clocks = <&clk_boston BOSTON_CLK_CPU>;
+		};
+	};
+
+	cdmm@16140000 {
+		compatible = "mti,mips-cdmm";
+		reg = <0x16140000 0x8000>;
+	};
+
+	cpc@16200000 {
+		compatible = "mti,mips-cpc";
+		reg = <0x16200000 0x8000>;
+	};
+
+	plat_regs: system-controller@17ffd000 {
+		compatible = "img,boston-platform-regs", "syscon";
+		reg = <0x17ffd000 0x1000>;
+
+		clk_boston: clock {
+			compatible = "img,boston-clock";
+			#clock-cells = <1>;
+		};
+	};
+
+	reboot: syscon-reboot {
+		compatible = "syscon-reboot";
+		regmap = <&plat_regs>;
+		offset = <0x10>;
+		mask = <0x10>;
+	};
+
+	uart0: uart@17ffe000 {
+		compatible = "ns16550a";
+		reg = <0x17ffe000 0x1000>;
+		reg-shift = <2>;
+
+		interrupt-parent = <&gic>;
+		interrupts = <GIC_SHARED 3 IRQ_TYPE_LEVEL_HIGH>;
+
+		clocks = <&clk_boston BOSTON_CLK_SYS>;
+	};
+
+	lcd: lcd@17fff000 {
+		compatible = "img,boston-lcd";
+		reg = <0x17fff000 0x8>;
+	};
+};
diff --git a/arch/mips/boot/dts/mti/sead3.dts b/arch/mips/boot/dts/mti/sead3.dts
index b112879a5d9d..4f8bc83c2960 100644
--- a/arch/mips/boot/dts/mti/sead3.dts
+++ b/arch/mips/boot/dts/mti/sead3.dts
@@ -11,15 +11,14 @@
 	#size-cells = <1>;
 	compatible = "mti,sead-3";
 	model = "MIPS SEAD-3";
-	interrupt-parent = <&gic>;
 
 	chosen {
-		stdout-path = "uart1:115200";
+		stdout-path = "serial1:115200";
 	};
 
 	aliases {
-		uart0 = &uart0;
-		uart1 = &uart1;
+		serial0 = &uart0;
+		serial1 = &uart1;
 	};
 
 	cpus {
@@ -54,18 +53,14 @@
 		 * controller & should be probed first.
 		 */
 		interrupt-parent = <&cpu_intc>;
-
-		timer {
-			compatible = "mti,gic-timer";
-			interrupts = <GIC_LOCAL 1 IRQ_TYPE_NONE>;
-		};
 	};
 
 	ehci@1b200000 {
 		compatible = "generic-ehci";
 		reg = <0x1b200000 0x1000>;
 
-		interrupts = <0>; /* GIC 0 or CPU 6 */
+		interrupt-parent = <&gic>;
+		interrupts = <GIC_SHARED 0 IRQ_TYPE_LEVEL_HIGH>; /* GIC 0 or CPU 6 */
 
 		has-transaction-translator;
 	};
@@ -227,7 +222,8 @@
 
 		clock-frequency = <14745600>;
 
-		interrupts = <3>; /* GIC 3 or CPU 4 */
+		interrupt-parent = <&gic>;
+		interrupts = <GIC_SHARED 3 IRQ_TYPE_LEVEL_HIGH>; /* GIC 3 or CPU 4 */
 
 		no-loopback-test;
 	};
@@ -241,7 +237,8 @@
 
 		clock-frequency = <14745600>;
 
-		interrupts = <2>; /* GIC 2 or CPU 4 */
+		interrupt-parent = <&gic>;
+		interrupts = <GIC_SHARED 2 IRQ_TYPE_LEVEL_HIGH>; /* GIC 2 or CPU 4 */
 
 		no-loopback-test;
 	};
@@ -251,7 +248,8 @@
 		reg = <0x1f010000 0x10000>;
 		reg-io-width = <4>;
 
-		interrupts = <0>; /* GIC 0 or CPU 6 */
+		interrupt-parent = <&gic>;
+		interrupts = <GIC_SHARED 0 IRQ_TYPE_LEVEL_HIGH>; /* GIC 0 or CPU 6 */
 
 		phy-mode = "mii";
 		smsc,irq-push-pull;
diff --git a/arch/mips/cavium-octeon/octeon-usb.c b/arch/mips/cavium-octeon/octeon-usb.c
index 542be1cd0f32..bfdfaf32d2c4 100644
--- a/arch/mips/cavium-octeon/octeon-usb.c
+++ b/arch/mips/cavium-octeon/octeon-usb.c
@@ -13,9 +13,9 @@
 #include <linux/mutex.h>
 #include <linux/delay.h>
 #include <linux/of_platform.h>
+#include <linux/io.h>
 
 #include <asm/octeon/octeon.h>
-#include <asm/octeon/cvmx-gpio-defs.h>
 
 /* USB Control Register */
 union cvm_usbdrd_uctl_ctl {
diff --git a/arch/mips/configs/ar7_defconfig b/arch/mips/configs/ar7_defconfig
index 320772caf054..92fca3c42eac 100644
--- a/arch/mips/configs/ar7_defconfig
+++ b/arch/mips/configs/ar7_defconfig
@@ -3,7 +3,6 @@ CONFIG_HIGH_RES_TIMERS=y
 CONFIG_HZ_100=y
 CONFIG_KEXEC=y
 # CONFIG_SECCOMP is not set
-CONFIG_EXPERIMENTAL=y
 # CONFIG_LOCALVERSION_AUTO is not set
 CONFIG_KERNEL_LZMA=y
 CONFIG_SYSVIPC=y
@@ -41,7 +40,6 @@ CONFIG_SYN_COOKIES=y
 # CONFIG_INET_XFRM_MODE_TRANSPORT is not set
 # CONFIG_INET_XFRM_MODE_TUNNEL is not set
 # CONFIG_INET_XFRM_MODE_BEET is not set
-# CONFIG_INET_LRO is not set
 # CONFIG_INET_DIAG is not set
 CONFIG_TCP_CONG_ADVANCED=y
 # CONFIG_TCP_CONG_BIC is not set
@@ -86,7 +84,6 @@ CONFIG_MAC80211_RC_DEFAULT_PID=y
 CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug"
 # CONFIG_FIRMWARE_IN_KERNEL is not set
 CONFIG_MTD=y
-CONFIG_MTD_CHAR=y
 CONFIG_MTD_BLOCK=y
 CONFIG_MTD_CFI=y
 CONFIG_MTD_CFI_INTELEXT=y
@@ -99,8 +96,6 @@ CONFIG_FIXED_PHY=y
 CONFIG_NET_ETHERNET=y
 CONFIG_MII=y
 CONFIG_CPMAC=y
-# CONFIG_NETDEV_1000 is not set
-# CONFIG_NETDEV_10000 is not set
 CONFIG_PPP=m
 CONFIG_PPP_MULTILINK=y
 CONFIG_PPP_FILTER=y
@@ -142,7 +137,6 @@ CONFIG_BSD_DISKLABEL=y
 # CONFIG_ENABLE_MUST_CHECK is not set
 CONFIG_STRIP_ASM_SYMS=y
 CONFIG_DEBUG_FS=y
-CONFIG_SYSCTL_SYSCALL_CHECK=y
 CONFIG_CMDLINE_BOOL=y
 CONFIG_CMDLINE="rootfstype=squashfs,jffs2"
 CONFIG_CRYPTO=y
diff --git a/arch/mips/configs/ath79_defconfig b/arch/mips/configs/ath79_defconfig
index 134879c1310a..25ed914933e5 100644
--- a/arch/mips/configs/ath79_defconfig
+++ b/arch/mips/configs/ath79_defconfig
@@ -7,7 +7,6 @@ CONFIG_ATH79_MACH_PB44=y
 CONFIG_ATH79_MACH_UBNT_XM=y
 CONFIG_HZ_100=y
 # CONFIG_SECCOMP is not set
-CONFIG_EXPERIMENTAL=y
 # CONFIG_LOCALVERSION_AUTO is not set
 CONFIG_SYSVIPC=y
 CONFIG_HIGH_RES_TIMERS=y
@@ -35,7 +34,6 @@ CONFIG_IP_ADVANCED_ROUTER=y
 # CONFIG_INET_XFRM_MODE_TRANSPORT is not set
 # CONFIG_INET_XFRM_MODE_TUNNEL is not set
 # CONFIG_INET_XFRM_MODE_BEET is not set
-# CONFIG_INET_LRO is not set
 # CONFIG_IPV6 is not set
 CONFIG_CFG80211=m
 CONFIG_MAC80211=m
diff --git a/arch/mips/configs/bcm63xx_defconfig b/arch/mips/configs/bcm63xx_defconfig
index 5599a9f1e3c6..131b350f014f 100644
--- a/arch/mips/configs/bcm63xx_defconfig
+++ b/arch/mips/configs/bcm63xx_defconfig
@@ -5,7 +5,6 @@ CONFIG_BCM63XX_CPU_6348=y
 CONFIG_BCM63XX_CPU_6358=y
 CONFIG_NO_HZ=y
 # CONFIG_SECCOMP is not set
-CONFIG_EXPERIMENTAL=y
 # CONFIG_LOCALVERSION_AUTO is not set
 # CONFIG_SWAP is not set
 CONFIG_TINY_RCU=y
@@ -33,7 +32,6 @@ CONFIG_INET=y
 # CONFIG_INET_XFRM_MODE_TRANSPORT is not set
 # CONFIG_INET_XFRM_MODE_TUNNEL is not set
 # CONFIG_INET_XFRM_MODE_BEET is not set
-# CONFIG_INET_LRO is not set
 # CONFIG_INET_DIAG is not set
 # CONFIG_IPV6 is not set
 CONFIG_CFG80211=y
@@ -50,13 +48,10 @@ CONFIG_MTD_CFI_INTELEXT=y
 CONFIG_MTD_CFI_AMDSTD=y
 CONFIG_MTD_PHYSMAP=y
 # CONFIG_BLK_DEV is not set
-# CONFIG_MISC_DEVICES is not set
 CONFIG_NETDEVICES=y
 CONFIG_BCM63XX_PHY=y
 CONFIG_NET_ETHERNET=y
 CONFIG_BCM63XX_ENET=y
-# CONFIG_NETDEV_1000 is not set
-# CONFIG_NETDEV_10000 is not set
 CONFIG_B43=y
 # CONFIG_B43_PHY_LP is not set
 # CONFIG_INPUT is not set
@@ -70,7 +65,6 @@ CONFIG_SERIAL_BCM63XX_CONSOLE=y
 # CONFIG_HWMON is not set
 # CONFIG_VGA_ARB is not set
 CONFIG_USB=y
-# CONFIG_USB_DEVICE_CLASS is not set
 CONFIG_USB_EHCI_HCD=y
 # CONFIG_USB_EHCI_TT_NEWSCHED is not set
 CONFIG_USB_OHCI_HCD=y
@@ -84,7 +78,6 @@ CONFIG_LEDS_TRIGGER_DEFAULT_ON=y
 CONFIG_PROC_KCORE=y
 # CONFIG_NETWORK_FILESYSTEMS is not set
 CONFIG_MAGIC_SYSRQ=y
-CONFIG_SYSCTL_SYSCALL_CHECK=y
 CONFIG_CMDLINE_BOOL=y
 CONFIG_CMDLINE="console=ttyS0,115200"
 # CONFIG_CRYPTO_HW is not set
diff --git a/arch/mips/configs/bigsur_defconfig b/arch/mips/configs/bigsur_defconfig
index d20b09d77b53..a55009edbb29 100644
--- a/arch/mips/configs/bigsur_defconfig
+++ b/arch/mips/configs/bigsur_defconfig
@@ -4,7 +4,6 @@ CONFIG_SMP=y
 CONFIG_NO_HZ=y
 CONFIG_HIGH_RES_TIMERS=y
 CONFIG_HZ_1000=y
-CONFIG_EXPERIMENTAL=y
 CONFIG_SYSVIPC=y
 CONFIG_POSIX_MQUEUE=y
 CONFIG_BSD_PROCESS_ACCT=y
@@ -60,7 +59,6 @@ CONFIG_INET_ESP=m
 CONFIG_INET_IPCOMP=m
 CONFIG_INET_XFRM_MODE_TRANSPORT=m
 CONFIG_INET_XFRM_MODE_TUNNEL=m
-# CONFIG_INET_LRO is not set
 CONFIG_TCP_MD5SIG=y
 CONFIG_IPV6_ROUTER_PREF=y
 CONFIG_IPV6_ROUTE_INFO=y
@@ -182,7 +180,6 @@ CONFIG_QUOTA=y
 CONFIG_QUOTA_NETLINK_INTERFACE=y
 # CONFIG_PRINT_QUOTA_WARNING is not set
 CONFIG_QFMT_V2=m
-CONFIG_AUTOFS_FS=m
 CONFIG_AUTOFS4_FS=m
 CONFIG_FUSE_FS=m
 CONFIG_ISO9660_FS=m
@@ -284,7 +281,6 @@ CONFIG_CRYPTO_SEED=m
 CONFIG_CRYPTO_SERPENT=m
 CONFIG_CRYPTO_TEA=m
 CONFIG_CRYPTO_TWOFISH=m
-CONFIG_CRYPTO_ZLIB=m
 CONFIG_CRYPTO_LZO=m
 CONFIG_CRC_T10DIF=m
 CONFIG_CRC7=m
diff --git a/arch/mips/configs/bmips_be_defconfig b/arch/mips/configs/bmips_be_defconfig
index acf7785c4cdb..a7072a14d396 100644
--- a/arch/mips/configs/bmips_be_defconfig
+++ b/arch/mips/configs/bmips_be_defconfig
@@ -23,7 +23,6 @@ CONFIG_INET=y
 # CONFIG_INET_XFRM_MODE_TRANSPORT is not set
 # CONFIG_INET_XFRM_MODE_TUNNEL is not set
 # CONFIG_INET_XFRM_MODE_BEET is not set
-# CONFIG_INET_LRO is not set
 # CONFIG_INET_DIAG is not set
 CONFIG_CFG80211=y
 CONFIG_NL80211_TESTMODE=y
diff --git a/arch/mips/configs/capcella_defconfig b/arch/mips/configs/capcella_defconfig
index 2924ba34a01b..bd80b5c852dd 100644
--- a/arch/mips/configs/capcella_defconfig
+++ b/arch/mips/configs/capcella_defconfig
@@ -1,6 +1,5 @@
 CONFIG_MACH_VR41XX=y
 CONFIG_ZAO_CAPCELLA=y
-CONFIG_EXPERIMENTAL=y
 CONFIG_SYSVIPC=y
 CONFIG_LOG_BUF_SHIFT=14
 # CONFIG_CC_OPTIMIZE_FOR_SIZE is not set
@@ -46,8 +45,6 @@ CONFIG_SMSC_PHY=m
 CONFIG_NET_ETHERNET=y
 CONFIG_NET_PCI=y
 CONFIG_8139TOO=y
-# CONFIG_NETDEV_1000 is not set
-# CONFIG_NETDEV_10000 is not set
 # CONFIG_INPUT_MOUSEDEV is not set
 # CONFIG_INPUT_KEYBOARD is not set
 # CONFIG_INPUT_MOUSE is not set
@@ -59,7 +56,6 @@ CONFIG_SERIAL_VR41XX_CONSOLE=y
 CONFIG_GPIO_VR41XX=y
 # CONFIG_HWMON is not set
 # CONFIG_VGA_CONSOLE is not set
-# CONFIG_HID_SUPPORT is not set
 # CONFIG_USB_SUPPORT is not set
 CONFIG_RTC_CLASS=y
 CONFIG_RTC_DRV_VR41XX=y
diff --git a/arch/mips/configs/cavium_octeon_defconfig b/arch/mips/configs/cavium_octeon_defconfig
index d4fda41f00ba..e5b18f1a31a0 100644
--- a/arch/mips/configs/cavium_octeon_defconfig
+++ b/arch/mips/configs/cavium_octeon_defconfig
@@ -42,7 +42,6 @@ CONFIG_IP_MROUTE=y
 CONFIG_IP_PIMSM_V1=y
 CONFIG_IP_PIMSM_V2=y
 CONFIG_SYN_COOKIES=y
-# CONFIG_INET_LRO is not set
 CONFIG_IPV6=y
 CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug"
 CONFIG_DEVTMPFS=y
diff --git a/arch/mips/configs/ci20_defconfig b/arch/mips/configs/ci20_defconfig
index 43e0ba24470c..b42cfa7865f9 100644
--- a/arch/mips/configs/ci20_defconfig
+++ b/arch/mips/configs/ci20_defconfig
@@ -41,7 +41,6 @@ CONFIG_INET=y
 # CONFIG_INET_XFRM_MODE_TRANSPORT is not set
 # CONFIG_INET_XFRM_MODE_TUNNEL is not set
 # CONFIG_INET_XFRM_MODE_BEET is not set
-# CONFIG_INET_LRO is not set
 # CONFIG_INET_DIAG is not set
 # CONFIG_IPV6 is not set
 # CONFIG_WIRELESS is not set
diff --git a/arch/mips/configs/cobalt_defconfig b/arch/mips/configs/cobalt_defconfig
index 23b66934e18d..a9066f300665 100644
--- a/arch/mips/configs/cobalt_defconfig
+++ b/arch/mips/configs/cobalt_defconfig
@@ -1,5 +1,4 @@
 CONFIG_MIPS_COBALT=y
-CONFIG_EXPERIMENTAL=y
 CONFIG_SYSVIPC=y
 CONFIG_LOG_BUF_SHIFT=14
 CONFIG_RELAY=y
@@ -15,17 +14,14 @@ CONFIG_XFRM_USER=y
 CONFIG_NET_KEY=y
 CONFIG_NET_KEY_MIGRATE=y
 CONFIG_INET=y
-# CONFIG_INET_LRO is not set
 # CONFIG_IPV6 is not set
 CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug"
 CONFIG_MTD=y
-CONFIG_MTD_CHAR=y
 CONFIG_MTD_BLKDEVS=y
 CONFIG_MTD_JEDECPROBE=y
 CONFIG_MTD_CFI_AMDSTD=y
 CONFIG_MTD_PHYSMAP=y
 CONFIG_BLK_DEV_LOOP=y
-# CONFIG_MISC_DEVICES is not set
 CONFIG_RAID_ATTRS=y
 CONFIG_BLK_DEV_SD=y
 # CONFIG_SCSI_LOWLEVEL is not set
@@ -36,8 +32,6 @@ CONFIG_NET_ETHERNET=y
 CONFIG_NET_TULIP=y
 CONFIG_DE2104X=y
 CONFIG_TULIP=y
-# CONFIG_NETDEV_1000 is not set
-# CONFIG_NETDEV_10000 is not set
 # CONFIG_INPUT_MOUSEDEV is not set
 CONFIG_INPUT_EVDEV=y
 # CONFIG_INPUT_KEYBOARD is not set
@@ -56,7 +50,6 @@ CONFIG_FB_COBALT=y
 # CONFIG_VGA_CONSOLE is not set
 CONFIG_HID=m
 CONFIG_USB=m
-# CONFIG_USB_DEVICE_CLASS is not set
 CONFIG_USB_EHCI_HCD=m
 # CONFIG_USB_EHCI_TT_NEWSCHED is not set
 CONFIG_USB_OHCI_HCD=m
@@ -84,6 +77,5 @@ CONFIG_NFS_V3_ACL=y
 CONFIG_NFSD=y
 CONFIG_NFSD_V3=y
 CONFIG_NFSD_V3_ACL=y
-CONFIG_SYSCTL_SYSCALL_CHECK=y
 CONFIG_CRC16=y
 CONFIG_LIBCRC32C=y
diff --git a/arch/mips/configs/decstation_defconfig b/arch/mips/configs/decstation_defconfig
index 2b6cb41d5715..e149f78901f8 100644
--- a/arch/mips/configs/decstation_defconfig
+++ b/arch/mips/configs/decstation_defconfig
@@ -1,6 +1,5 @@
 CONFIG_MACH_DECSTATION=y
 CONFIG_CPU_R3000=y
-CONFIG_EXPERIMENTAL=y
 CONFIG_SYSVIPC=y
 CONFIG_LOG_BUF_SHIFT=14
 # CONFIG_CC_OPTIMIZE_FOR_SIZE is not set
diff --git a/arch/mips/configs/e55_defconfig b/arch/mips/configs/e55_defconfig
index e94d266c4b97..c3ac0209457c 100644
--- a/arch/mips/configs/e55_defconfig
+++ b/arch/mips/configs/e55_defconfig
@@ -1,6 +1,5 @@
 CONFIG_MACH_VR41XX=y
 CONFIG_CASIO_E55=y
-CONFIG_EXPERIMENTAL=y
 CONFIG_SYSVIPC=y
 CONFIG_LOG_BUF_SHIFT=14
 # CONFIG_CC_OPTIMIZE_FOR_SIZE is not set
@@ -28,7 +27,6 @@ CONFIG_SERIAL_VR41XX_CONSOLE=y
 CONFIG_GPIO_VR41XX=y
 # CONFIG_HWMON is not set
 # CONFIG_VGA_CONSOLE is not set
-# CONFIG_HID_SUPPORT is not set
 # CONFIG_USB_SUPPORT is not set
 CONFIG_RTC_CLASS=y
 CONFIG_RTC_DRV_VR41XX=y
diff --git a/arch/mips/configs/fuloong2e_defconfig b/arch/mips/configs/fuloong2e_defconfig
index 87435897fd50..499f51498ecb 100644
--- a/arch/mips/configs/fuloong2e_defconfig
+++ b/arch/mips/configs/fuloong2e_defconfig
@@ -3,7 +3,6 @@ CONFIG_64BIT=y
 CONFIG_NO_HZ=y
 CONFIG_HIGH_RES_TIMERS=y
 CONFIG_PREEMPT_VOLUNTARY=y
-CONFIG_EXPERIMENTAL=y
 CONFIG_LOCALVERSION="-fuloong2e"
 # CONFIG_LOCALVERSION_AUTO is not set
 CONFIG_SYSVIPC=y
@@ -47,7 +46,6 @@ CONFIG_NET_IPGRE=m
 CONFIG_NET_IPGRE_BROADCAST=y
 # CONFIG_INET_XFRM_MODE_TRANSPORT is not set
 # CONFIG_INET_XFRM_MODE_TUNNEL is not set
-# CONFIG_INET_LRO is not set
 # CONFIG_INET_DIAG is not set
 # CONFIG_IPV6 is not set
 CONFIG_NETFILTER=y
@@ -79,7 +77,6 @@ CONFIG_NETFILTER_XT_MATCH_STRING=m
 CONFIG_NETFILTER_XT_MATCH_TCPMSS=m
 CONFIG_NETFILTER_XT_MATCH_TIME=m
 CONFIG_NETFILTER_XT_MATCH_U32=m
-CONFIG_IP_NF_QUEUE=m
 CONFIG_IP_NF_IPTABLES=m
 CONFIG_IP_NF_MATCH_ADDRTYPE=m
 CONFIG_IP_NF_MATCH_AH=m
@@ -88,7 +85,6 @@ CONFIG_IP_NF_MATCH_TTL=m
 CONFIG_IP_NF_FILTER=m
 CONFIG_IP_NF_TARGET_REJECT=m
 CONFIG_IP_NF_TARGET_LOG=m
-CONFIG_IP_NF_TARGET_ULOG=m
 CONFIG_IP_NF_MANGLE=m
 CONFIG_IP_NF_TARGET_ECN=m
 CONFIG_IP_NF_TARGET_TTL=m
@@ -101,7 +97,6 @@ CONFIG_NET_9P=m
 CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug"
 CONFIG_FW_LOADER=m
 CONFIG_MTD=m
-CONFIG_MTD_CHAR=m
 CONFIG_MTD_BLOCK=m
 CONFIG_MTD_CFI=m
 CONFIG_MTD_JEDECPROBE=m
@@ -163,7 +158,6 @@ CONFIG_I2C=m
 CONFIG_I2C_CHARDEV=m
 CONFIG_I2C_VIAPRO=m
 # CONFIG_HWMON is not set
-CONFIG_VIDEO_OUTPUT_CONTROL=m
 CONFIG_FB=y
 CONFIG_FB_RADEON=y
 # CONFIG_FB_RADEON_I2C is not set
@@ -184,7 +178,6 @@ CONFIG_USB_KBD=y
 CONFIG_USB_MOUSE=y
 CONFIG_USB=y
 CONFIG_USB_ANNOUNCE_NEW_DEVICES=y
-# CONFIG_USB_DEVICE_CLASS is not set
 CONFIG_USB_OTG_WHITELIST=y
 CONFIG_USB_WUSB_CBAF=m
 CONFIG_USB_C67X00_HCD=m
@@ -201,7 +194,6 @@ CONFIG_USB_TMC=m
 CONFIG_USB_STORAGE=y
 CONFIG_USB_STORAGE_ONETOUCH=y
 CONFIG_USB_STORAGE_CYPRESS_ATACB=y
-CONFIG_USB_LIBUSUAL=y
 CONFIG_USB_SEVSEG=m
 CONFIG_USB_ISIGHTFW=m
 CONFIG_UIO=m
@@ -215,7 +207,6 @@ CONFIG_EXT4_FS=m
 CONFIG_EXT4_FS_POSIX_ACL=y
 CONFIG_EXT4_FS_SECURITY=y
 CONFIG_REISERFS_FS=m
-CONFIG_AUTOFS_FS=y
 CONFIG_AUTOFS4_FS=y
 CONFIG_FUSE_FS=y
 CONFIG_ISO9660_FS=m
@@ -256,8 +247,6 @@ CONFIG_NLS_ISO8859_1=y
 CONFIG_NLS_UTF8=y
 # CONFIG_ENABLE_MUST_CHECK is not set
 CONFIG_DEBUG_FS=y
-# CONFIG_RCU_CPU_STALL_DETECTOR is not set
-CONFIG_SYSCTL_SYSCALL_CHECK=y
 CONFIG_CRYPTO_FIPS=y
 CONFIG_CRYPTO_AUTHENC=m
 CONFIG_CRYPTO_CCM=m
diff --git a/arch/mips/configs/generic/board-boston.config b/arch/mips/configs/generic/board-boston.config
new file mode 100644
index 000000000000..19560a45b683
--- /dev/null
+++ b/arch/mips/configs/generic/board-boston.config
@@ -0,0 +1,48 @@
+CONFIG_FIT_IMAGE_FDT_BOSTON=y
+
+CONFIG_ATA=y
+CONFIG_SATA_AHCI=y
+CONFIG_SCSI=y
+CONFIG_BLK_DEV_SD=y
+
+CONFIG_AUXDISPLAY=y
+CONFIG_IMG_ASCII_LCD=y
+
+CONFIG_COMMON_CLK_BOSTON=y
+
+CONFIG_DMADEVICES=y
+CONFIG_PCH_DMA=y
+
+CONFIG_GPIOLIB=y
+CONFIG_GPIO_SYSFS=y
+CONFIG_GPIO_PCH=y
+
+CONFIG_I2C=y
+CONFIG_I2C_EG20T=y
+
+CONFIG_MMC=y
+CONFIG_MMC_SDHCI=y
+CONFIG_MMC_SDHCI_PCI=y
+
+CONFIG_NETDEVICES=y
+CONFIG_PCH_GBE=y
+
+CONFIG_PCI=y
+CONFIG_PCI_MSI=y
+CONFIG_PCIE_XILINX=y
+
+CONFIG_PCH_PHUB=y
+
+CONFIG_RTC_CLASS=y
+CONFIG_RTC_DRV_M41T80=y
+
+CONFIG_SERIAL_8250=y
+CONFIG_SERIAL_8250_CONSOLE=y
+CONFIG_SERIAL_OF_PLATFORM=y
+
+CONFIG_SPI=y
+CONFIG_SPI_TOPCLIFF_PCH=y
+
+CONFIG_USB=y
+CONFIG_USB_EHCI_HCD=y
+CONFIG_USB_OHCI_HCD=y
diff --git a/arch/mips/configs/gpr_defconfig b/arch/mips/configs/gpr_defconfig
index e24feb0633aa..b1911816337c 100644
--- a/arch/mips/configs/gpr_defconfig
+++ b/arch/mips/configs/gpr_defconfig
@@ -2,7 +2,6 @@ CONFIG_MIPS_ALCHEMY=y
 CONFIG_MIPS_GPR=y
 CONFIG_HIGH_RES_TIMERS=y
 CONFIG_PREEMPT_VOLUNTARY=y
-CONFIG_EXPERIMENTAL=y
 # CONFIG_LOCALVERSION_AUTO is not set
 CONFIG_SYSVIPC=y
 CONFIG_POSIX_MQUEUE=y
@@ -59,7 +58,6 @@ CONFIG_NETFILTER_XT_MATCH_REALM=m
 CONFIG_NETFILTER_XT_MATCH_STATISTIC=m
 CONFIG_NETFILTER_XT_MATCH_STRING=m
 CONFIG_NETFILTER_XT_MATCH_TCPMSS=m
-CONFIG_IP_NF_QUEUE=m
 CONFIG_IP_NF_IPTABLES=m
 CONFIG_IP_NF_MATCH_ADDRTYPE=m
 CONFIG_IP_NF_MATCH_AH=m
@@ -68,7 +66,6 @@ CONFIG_IP_NF_MATCH_TTL=m
 CONFIG_IP_NF_FILTER=m
 CONFIG_IP_NF_TARGET_REJECT=m
 CONFIG_IP_NF_TARGET_LOG=m
-CONFIG_IP_NF_TARGET_ULOG=m
 CONFIG_IP_NF_MANGLE=m
 CONFIG_IP_NF_TARGET_ECN=m
 CONFIG_IP_NF_TARGET_TTL=m
@@ -166,7 +163,6 @@ CONFIG_YAM=m
 CONFIG_CFG80211=y
 CONFIG_MAC80211=y
 CONFIG_MTD=y
-CONFIG_MTD_CHAR=y
 CONFIG_MTD_BLOCK=y
 CONFIG_MTD_CFI=y
 CONFIG_MTD_CFI_INTELEXT=y
@@ -200,8 +196,6 @@ CONFIG_SMSC_PHY=m
 CONFIG_NET_ETHERNET=y
 CONFIG_MII=y
 CONFIG_MIPS_AU1X00_ENET=y
-# CONFIG_NETDEV_1000 is not set
-# CONFIG_NETDEV_10000 is not set
 CONFIG_ATH_COMMON=y
 CONFIG_ATH_DEBUG=y
 CONFIG_ATH5K=y
@@ -286,14 +280,12 @@ CONFIG_USB_HIDDEV=y
 CONFIG_USB_KBD=m
 CONFIG_USB_MOUSE=m
 CONFIG_USB=y
-# CONFIG_USB_DEVICE_CLASS is not set
 CONFIG_USB_MON=y
 CONFIG_USB_EHCI_HCD=y
 CONFIG_USB_EHCI_ROOT_HUB_TT=y
 CONFIG_USB_OHCI_HCD=y
 CONFIG_USB_OHCI_HCD_PLATFORM=y
 CONFIG_USB_STORAGE=m
-CONFIG_USB_LIBUSUAL=y
 CONFIG_USB_SERIAL=y
 CONFIG_USB_EZUSB=y
 CONFIG_USB_SERIAL_GENERIC=y
diff --git a/arch/mips/configs/ip22_defconfig b/arch/mips/configs/ip22_defconfig
index ec8e9684296d..83e8fe2064aa 100644
--- a/arch/mips/configs/ip22_defconfig
+++ b/arch/mips/configs/ip22_defconfig
@@ -4,7 +4,6 @@ CONFIG_NO_HZ=y
 CONFIG_HIGH_RES_TIMERS=y
 CONFIG_HZ_1000=y
 CONFIG_PREEMPT_VOLUNTARY=y
-CONFIG_EXPERIMENTAL=y
 CONFIG_SYSVIPC=y
 CONFIG_IKCONFIG=y
 CONFIG_IKCONFIG_PROC=y
@@ -46,7 +45,6 @@ CONFIG_INET_IPCOMP=m
 CONFIG_INET_XFRM_MODE_TRANSPORT=m
 CONFIG_INET_XFRM_MODE_TUNNEL=m
 CONFIG_INET_XFRM_MODE_BEET=m
-# CONFIG_INET_LRO is not set
 CONFIG_TCP_MD5SIG=y
 CONFIG_IPV6_ROUTER_PREF=y
 CONFIG_IPV6_ROUTE_INFO=y
@@ -139,7 +137,6 @@ CONFIG_IP_VS_SED=m
 CONFIG_IP_VS_NQ=m
 CONFIG_IP_VS_FTP=m
 CONFIG_NF_CONNTRACK_IPV4=m
-CONFIG_IP_NF_QUEUE=m
 CONFIG_IP_NF_IPTABLES=m
 CONFIG_IP_NF_MATCH_ADDRTYPE=m
 CONFIG_IP_NF_MATCH_AH=m
@@ -148,7 +145,6 @@ CONFIG_IP_NF_MATCH_TTL=m
 CONFIG_IP_NF_FILTER=m
 CONFIG_IP_NF_TARGET_REJECT=m
 CONFIG_IP_NF_TARGET_LOG=m
-CONFIG_IP_NF_TARGET_ULOG=m
 CONFIG_NF_NAT=m
 CONFIG_IP_NF_TARGET_MASQUERADE=m
 CONFIG_IP_NF_TARGET_NETMAP=m
@@ -163,7 +159,6 @@ CONFIG_IP_NF_ARPTABLES=m
 CONFIG_IP_NF_ARPFILTER=m
 CONFIG_IP_NF_ARP_MANGLE=m
 CONFIG_NF_CONNTRACK_IPV6=m
-CONFIG_IP6_NF_QUEUE=m
 CONFIG_IP6_NF_IPTABLES=m
 CONFIG_IP6_NF_MATCH_AH=m
 CONFIG_IP6_NF_MATCH_EUI64=m
@@ -174,7 +169,6 @@ CONFIG_IP6_NF_MATCH_IPV6HEADER=m
 CONFIG_IP6_NF_MATCH_MH=m
 CONFIG_IP6_NF_MATCH_RT=m
 CONFIG_IP6_NF_TARGET_HL=m
-CONFIG_IP6_NF_TARGET_LOG=m
 CONFIG_IP6_NF_FILTER=m
 CONFIG_IP6_NF_TARGET_REJECT=m
 CONFIG_IP6_NF_MANGLE=m
@@ -215,7 +209,6 @@ CONFIG_RFKILL=m
 CONFIG_CONNECTOR=m
 CONFIG_CDROM_PKTCDVD=m
 CONFIG_ATA_OVER_ETH=m
-# CONFIG_MISC_DEVICES is not set
 CONFIG_RAID_ATTRS=m
 CONFIG_SCSI=y
 CONFIG_BLK_DEV_SD=y
@@ -245,8 +238,6 @@ CONFIG_MDIO_BITBANG=m
 CONFIG_NET_ETHERNET=y
 CONFIG_SMC91X=m
 CONFIG_SGISEEQ=y
-# CONFIG_NETDEV_1000 is not set
-# CONFIG_NETDEV_10000 is not set
 CONFIG_HOSTAP=m
 CONFIG_INPUT_MOUSEDEV=m
 CONFIG_MOUSE_PS2=m
@@ -286,7 +277,6 @@ CONFIG_QUOTA=y
 CONFIG_QUOTA_NETLINK_INTERFACE=y
 # CONFIG_PRINT_QUOTA_WARNING is not set
 CONFIG_QFMT_V2=m
-CONFIG_AUTOFS_FS=m
 CONFIG_AUTOFS4_FS=m
 CONFIG_FUSE_FS=m
 CONFIG_ISO9660_FS=m
@@ -355,7 +345,6 @@ CONFIG_NLS_KOI8_U=m
 CONFIG_NLS_UTF8=m
 CONFIG_DLM=m
 CONFIG_DEBUG_MEMORY_INIT=y
-# CONFIG_RCU_CPU_STALL_DETECTOR is not set
 CONFIG_KEYS=y
 CONFIG_CRYPTO_FIPS=y
 CONFIG_CRYPTO_NULL=m
diff --git a/arch/mips/configs/ip27_defconfig b/arch/mips/configs/ip27_defconfig
index e582069b44fd..a0d593248668 100644
--- a/arch/mips/configs/ip27_defconfig
+++ b/arch/mips/configs/ip27_defconfig
@@ -5,7 +5,6 @@ CONFIG_SMP=y
 CONFIG_NO_HZ=y
 CONFIG_HIGH_RES_TIMERS=y
 CONFIG_HZ_1000=y
-CONFIG_EXPERIMENTAL=y
 CONFIG_SYSVIPC=y
 CONFIG_POSIX_MQUEUE=y
 CONFIG_IKCONFIG=y
@@ -104,7 +103,6 @@ CONFIG_BLK_DEV_CRYPTOLOOP=m
 CONFIG_BLK_DEV_OSD=m
 CONFIG_CDROM_PKTCDVD=m
 CONFIG_ATA_OVER_ETH=m
-# CONFIG_MISC_DEVICES is not set
 CONFIG_SCSI=y
 CONFIG_BLK_DEV_SD=y
 CONFIG_CHR_DEV_ST=y
@@ -325,7 +323,6 @@ CONFIG_XFS_POSIX_ACL=y
 CONFIG_BTRFS_FS=m
 CONFIG_BTRFS_FS_POSIX_ACL=y
 CONFIG_QUOTA_NETLINK_INTERFACE=y
-CONFIG_AUTOFS_FS=m
 CONFIG_FUSE_FS=m
 CONFIG_CUSE=m
 CONFIG_FSCACHE=m
@@ -342,7 +339,6 @@ CONFIG_NFS_V3=y
 CONFIG_RPCSEC_GSS_KRB5=y
 CONFIG_PARTITION_ADVANCED=y
 CONFIG_DLM=m
-# CONFIG_RCU_CPU_STALL_DETECTOR is not set
 CONFIG_KEYS=y
 CONFIG_SECURITYFS=y
 CONFIG_CRYPTO_FIPS=y
@@ -378,7 +374,6 @@ CONFIG_CRYPTO_SEED=m
 CONFIG_CRYPTO_SERPENT=m
 CONFIG_CRYPTO_TEA=m
 CONFIG_CRYPTO_TWOFISH=m
-CONFIG_CRYPTO_ZLIB=m
 CONFIG_CRYPTO_LZO=m
 CONFIG_CRYPTO_DEV_HIFN_795X=m
 CONFIG_CRC_T10DIF=m
diff --git a/arch/mips/configs/ip28_defconfig b/arch/mips/configs/ip28_defconfig
index 4dbf6269b3f9..d0a4c2cfacf8 100644
--- a/arch/mips/configs/ip28_defconfig
+++ b/arch/mips/configs/ip28_defconfig
@@ -1,7 +1,6 @@
 CONFIG_SGI_IP28=y
 CONFIG_ARC_CONSOLE=y
 CONFIG_PREEMPT_VOLUNTARY=y
-CONFIG_EXPERIMENTAL=y
 CONFIG_SYSVIPC=y
 CONFIG_IKCONFIG=y
 CONFIG_IKCONFIG_PROC=y
@@ -35,10 +34,8 @@ CONFIG_IP_PNP_BOOTP=y
 # CONFIG_INET_XFRM_MODE_TRANSPORT is not set
 # CONFIG_INET_XFRM_MODE_TUNNEL is not set
 # CONFIG_INET_XFRM_MODE_BEET is not set
-# CONFIG_INET_LRO is not set
 CONFIG_TCP_MD5SIG=y
 # CONFIG_IPV6 is not set
-# CONFIG_MISC_DEVICES is not set
 CONFIG_SCSI=y
 CONFIG_BLK_DEV_SD=y
 CONFIG_BLK_DEV_SR=y
@@ -48,8 +45,6 @@ CONFIG_NETDEVICES=y
 CONFIG_DUMMY=m
 CONFIG_NET_ETHERNET=y
 CONFIG_SGISEEQ=y
-# CONFIG_NETDEV_1000 is not set
-# CONFIG_NETDEV_10000 is not set
 # CONFIG_MOUSE_PS2_ALPS is not set
 # CONFIG_MOUSE_PS2_SYNAPTICS is not set
 CONFIG_VT_HW_CONSOLE_BINDING=y
diff --git a/arch/mips/configs/ip32_defconfig b/arch/mips/configs/ip32_defconfig
index f9af98f63cff..1e26e58b9dc3 100644
--- a/arch/mips/configs/ip32_defconfig
+++ b/arch/mips/configs/ip32_defconfig
@@ -1,6 +1,5 @@
 CONFIG_SGI_IP32=y
 # CONFIG_SECCOMP is not set
-CONFIG_EXPERIMENTAL=y
 CONFIG_SYSVIPC=y
 CONFIG_POSIX_MQUEUE=y
 CONFIG_BSD_PROCESS_ACCT=y
@@ -38,7 +37,6 @@ CONFIG_NET_IPGRE=m
 CONFIG_INET_AH=m
 CONFIG_INET_ESP=m
 CONFIG_INET_IPCOMP=m
-# CONFIG_INET_LRO is not set
 CONFIG_TCP_CONG_ADVANCED=y
 CONFIG_TCP_MD5SIG=y
 CONFIG_INET6_AH=m
@@ -76,8 +74,6 @@ CONFIG_NET_TULIP=y
 CONFIG_DE2104X=m
 CONFIG_TULIP=m
 CONFIG_TULIP_MMIO=y
-# CONFIG_NETDEV_1000 is not set
-# CONFIG_NETDEV_10000 is not set
 CONFIG_INPUT_EVDEV=m
 # CONFIG_SERIO_I8042 is not set
 CONFIG_SERIO_MACEPS2=y
@@ -87,7 +83,6 @@ CONFIG_SERIAL_8250=y
 CONFIG_SERIAL_8250_CONSOLE=y
 CONFIG_HW_RANDOM=y
 CONFIG_WATCHDOG=y
-CONFIG_VIDEO_OUTPUT_CONTROL=y
 CONFIG_FB=y
 CONFIG_FIRMWARE_EDID=y
 CONFIG_FB_GBE=y
@@ -117,7 +112,6 @@ CONFIG_EXT3_FS_SECURITY=y
 CONFIG_QUOTA=y
 CONFIG_QFMT_V1=m
 CONFIG_QFMT_V2=m
-CONFIG_AUTOFS_FS=m
 CONFIG_AUTOFS4_FS=m
 CONFIG_FUSE_FS=m
 CONFIG_ISO9660_FS=m
@@ -178,8 +172,6 @@ CONFIG_NLS_KOI8_R=m
 CONFIG_NLS_KOI8_U=m
 CONFIG_NLS_UTF8=m
 CONFIG_MAGIC_SYSRQ=y
-# CONFIG_RCU_CPU_STALL_DETECTOR is not set
-CONFIG_SYSCTL_SYSCALL_CHECK=y
 CONFIG_KEYS=y
 CONFIG_CRYPTO_NULL=y
 CONFIG_CRYPTO_CBC=y
diff --git a/arch/mips/configs/jazz_defconfig b/arch/mips/configs/jazz_defconfig
index 3019fce63cd3..9ad1c94376c8 100644
--- a/arch/mips/configs/jazz_defconfig
+++ b/arch/mips/configs/jazz_defconfig
@@ -1,7 +1,6 @@
 CONFIG_MACH_JAZZ=y
 CONFIG_OLIVETTI_M700=y
 CONFIG_PREEMPT_VOLUNTARY=y
-CONFIG_EXPERIMENTAL=y
 CONFIG_SYSVIPC=y
 CONFIG_POSIX_MQUEUE=y
 CONFIG_BSD_PROCESS_ACCT=y
@@ -85,7 +84,6 @@ CONFIG_NETFILTER_XT_MATCH_STATISTIC=m
 CONFIG_NETFILTER_XT_MATCH_STRING=m
 CONFIG_NETFILTER_XT_MATCH_TCPMSS=m
 CONFIG_NF_CONNTRACK_IPV4=m
-CONFIG_IP_NF_QUEUE=m
 CONFIG_IP_NF_IPTABLES=m
 CONFIG_IP_NF_MATCH_ADDRTYPE=m
 CONFIG_IP_NF_MATCH_AH=m
@@ -94,7 +92,6 @@ CONFIG_IP_NF_MATCH_TTL=m
 CONFIG_IP_NF_FILTER=m
 CONFIG_IP_NF_TARGET_REJECT=m
 CONFIG_IP_NF_TARGET_LOG=m
-CONFIG_IP_NF_TARGET_ULOG=m
 CONFIG_NF_NAT=m
 CONFIG_IP_NF_TARGET_MASQUERADE=m
 CONFIG_IP_NF_TARGET_NETMAP=m
@@ -109,7 +106,6 @@ CONFIG_IP_NF_ARPTABLES=m
 CONFIG_IP_NF_ARPFILTER=m
 CONFIG_IP_NF_ARP_MANGLE=m
 CONFIG_NF_CONNTRACK_IPV6=m
-CONFIG_IP6_NF_QUEUE=m
 CONFIG_IP6_NF_IPTABLES=m
 CONFIG_IP6_NF_MATCH_AH=m
 CONFIG_IP6_NF_MATCH_EUI64=m
@@ -120,7 +116,6 @@ CONFIG_IP6_NF_MATCH_IPV6HEADER=m
 CONFIG_IP6_NF_MATCH_MH=m
 CONFIG_IP6_NF_MATCH_RT=m
 CONFIG_IP6_NF_TARGET_HL=m
-CONFIG_IP6_NF_TARGET_LOG=m
 CONFIG_IP6_NF_FILTER=m
 CONFIG_IP6_NF_TARGET_REJECT=m
 CONFIG_IP6_NF_MANGLE=m
@@ -276,7 +271,6 @@ CONFIG_REISERFS_FS_POSIX_ACL=y
 CONFIG_REISERFS_FS_SECURITY=y
 CONFIG_XFS_FS=m
 CONFIG_XFS_QUOTA=y
-CONFIG_AUTOFS_FS=m
 CONFIG_AUTOFS4_FS=m
 CONFIG_FUSE_FS=m
 CONFIG_ISO9660_FS=m
diff --git a/arch/mips/configs/jmr3927_defconfig b/arch/mips/configs/jmr3927_defconfig
index 9bc08f275120..af12281a5c33 100644
--- a/arch/mips/configs/jmr3927_defconfig
+++ b/arch/mips/configs/jmr3927_defconfig
@@ -18,23 +18,18 @@ CONFIG_IP_PNP_BOOTP=y
 # CONFIG_INET_XFRM_MODE_TRANSPORT is not set
 # CONFIG_INET_XFRM_MODE_TUNNEL is not set
 # CONFIG_INET_XFRM_MODE_BEET is not set
-# CONFIG_INET_LRO is not set
 # CONFIG_INET_DIAG is not set
 # CONFIG_IPV6 is not set
 CONFIG_MTD=y
 CONFIG_MTD_CMDLINE_PARTS=y
-CONFIG_MTD_CHAR=y
 CONFIG_MTD_CFI=y
 CONFIG_MTD_JEDECPROBE=y
 CONFIG_MTD_CFI_AMDSTD=y
 CONFIG_MTD_PHYSMAP=y
-# CONFIG_MISC_DEVICES is not set
 CONFIG_NETDEVICES=y
 CONFIG_NET_ETHERNET=y
 CONFIG_NET_PCI=y
 CONFIG_TC35815=y
-# CONFIG_NETDEV_1000 is not set
-# CONFIG_NETDEV_10000 is not set
 # CONFIG_INPUT is not set
 # CONFIG_SERIO is not set
 # CONFIG_VT is not set
@@ -58,5 +53,3 @@ CONFIG_PROC_KCORE=y
 # CONFIG_MISC_FILESYSTEMS is not set
 CONFIG_NFS_FS=y
 CONFIG_ROOT_NFS=y
-# CONFIG_RCU_CPU_STALL_DETECTOR is not set
-CONFIG_SYSCTL_SYSCALL_CHECK=y
diff --git a/arch/mips/configs/lasat_defconfig b/arch/mips/configs/lasat_defconfig
index e620a2c3eba4..947a35c7c46c 100644
--- a/arch/mips/configs/lasat_defconfig
+++ b/arch/mips/configs/lasat_defconfig
@@ -5,7 +5,6 @@ CONFIG_DS1603=y
 CONFIG_LASAT_SYSCTL=y
 CONFIG_HZ_1000=y
 # CONFIG_SECCOMP is not set
-CONFIG_EXPERIMENTAL=y
 CONFIG_SYSVIPC=y
 CONFIG_LOG_BUF_SHIFT=14
 CONFIG_EXPERT=y
@@ -31,7 +30,6 @@ CONFIG_INET=y
 # CONFIG_INET_DIAG is not set
 # CONFIG_IPV6 is not set
 CONFIG_MTD=y
-CONFIG_MTD_CHAR=y
 CONFIG_MTD_BLOCK=y
 CONFIG_MTD_CFI=y
 CONFIG_MTD_CFI_AMDSTD=y
@@ -44,8 +42,6 @@ CONFIG_NETDEVICES=y
 CONFIG_NET_ETHERNET=y
 CONFIG_NET_PCI=y
 CONFIG_PCNET32=y
-# CONFIG_NETDEV_1000 is not set
-# CONFIG_NETDEV_10000 is not set
 # CONFIG_INPUT_MOUSEDEV is not set
 # CONFIG_INPUT_KEYBOARD is not set
 # CONFIG_INPUT_MOUSE is not set
@@ -56,7 +52,6 @@ CONFIG_SERIAL_8250_CONSOLE=y
 # CONFIG_SERIAL_8250_PCI is not set
 # CONFIG_HW_RANDOM is not set
 # CONFIG_HWMON is not set
-# CONFIG_HID_SUPPORT is not set
 # CONFIG_USB_SUPPORT is not set
 CONFIG_EXT2_FS=y
 CONFIG_EXT3_FS=y
diff --git a/arch/mips/configs/lemote2f_defconfig b/arch/mips/configs/lemote2f_defconfig
index 8df80c6383f2..1ec8ed8d05d1 100644
--- a/arch/mips/configs/lemote2f_defconfig
+++ b/arch/mips/configs/lemote2f_defconfig
@@ -7,7 +7,6 @@ CONFIG_HIGH_RES_TIMERS=y
 CONFIG_PREEMPT=y
 CONFIG_KEXEC=y
 # CONFIG_SECCOMP is not set
-CONFIG_EXPERIMENTAL=y
 # CONFIG_LOCALVERSION_AUTO is not set
 CONFIG_SYSVIPC=y
 CONFIG_BSD_PROCESS_ACCT=y
@@ -83,8 +82,6 @@ CONFIG_NET_SCHED=y
 CONFIG_NET_EMATCH=y
 CONFIG_NET_CLS_ACT=y
 CONFIG_BT=m
-CONFIG_BT_L2CAP=y
-CONFIG_BT_SCO=y
 CONFIG_BT_RFCOMM=m
 CONFIG_BT_RFCOMM_TTY=y
 CONFIG_BT_BNEP=m
@@ -142,7 +139,6 @@ CONFIG_8139TOO=y
 # CONFIG_8139TOO_PIO is not set
 CONFIG_R8169=y
 CONFIG_R8169_VLAN=y
-# CONFIG_NETDEV_10000 is not set
 CONFIG_USB_USBNET=m
 CONFIG_USB_NET_CDC_EEM=m
 CONFIG_NETCONSOLE=m
@@ -205,7 +201,6 @@ CONFIG_USB_ZR364XX=m
 CONFIG_USB_STKWEBCAM=m
 CONFIG_USB_S2255=m
 # CONFIG_RADIO_ADAPTERS is not set
-CONFIG_VIDEO_OUTPUT_CONTROL=y
 CONFIG_FB=y
 CONFIG_FIRMWARE_EDID=y
 CONFIG_FB_MODE_HELPERS=y
@@ -290,7 +285,6 @@ CONFIG_HID_WACOM=m
 CONFIG_HID_ZEROPLUS=m
 CONFIG_ZEROPLUS_FF=y
 CONFIG_USB=y
-# CONFIG_USB_DEVICE_CLASS is not set
 CONFIG_USB_DYNAMIC_MINORS=y
 CONFIG_USB_OTG_WHITELIST=y
 CONFIG_USB_MON=y
@@ -313,10 +307,8 @@ CONFIG_USB_STORAGE_SDDR09=m
 CONFIG_USB_STORAGE_SDDR55=m
 CONFIG_USB_STORAGE_JUMPSHOT=m
 CONFIG_USB_STORAGE_ALAUDA=m
-CONFIG_USB_LIBUSUAL=y
 CONFIG_USB_SERIAL=m
 CONFIG_USB_SERIAL_GENERIC=y
-CONFIG_USB_LED=m
 CONFIG_USB_GADGET=m
 CONFIG_USB_GADGET_M66592=y
 CONFIG_MMC=m
@@ -341,7 +333,6 @@ CONFIG_XFS_POSIX_ACL=y
 CONFIG_BTRFS_FS=m
 CONFIG_QUOTA=y
 CONFIG_QFMT_V2=m
-CONFIG_AUTOFS_FS=m
 CONFIG_AUTOFS4_FS=m
 CONFIG_FSCACHE=m
 CONFIG_CACHEFILES=m
@@ -407,8 +398,6 @@ CONFIG_PRINTK_TIME=y
 CONFIG_FRAME_WARN=1024
 CONFIG_STRIP_ASM_SYMS=y
 CONFIG_DEBUG_FS=y
-# CONFIG_RCU_CPU_STALL_DETECTOR is not set
-CONFIG_SYSCTL_SYSCALL_CHECK=y
 CONFIG_KEYS=y
 CONFIG_CRYPTO_FIPS=y
 CONFIG_CRYPTO_NULL=m
@@ -446,6 +435,5 @@ CONFIG_CRYPTO_SERPENT=m
 CONFIG_CRYPTO_TEA=m
 CONFIG_CRYPTO_TWOFISH=m
 CONFIG_CRYPTO_DEFLATE=m
-CONFIG_CRYPTO_ZLIB=m
 CONFIG_CRYPTO_LZO=m
 CONFIG_CRC_T10DIF=y
diff --git a/arch/mips/configs/loongson3_defconfig b/arch/mips/configs/loongson3_defconfig
index 7f95c4b3ab2c..324dfee23dfb 100644
--- a/arch/mips/configs/loongson3_defconfig
+++ b/arch/mips/configs/loongson3_defconfig
@@ -95,7 +95,6 @@ CONFIG_IP_NF_MATCH_ECN=m
 CONFIG_IP_NF_MATCH_TTL=m
 CONFIG_IP_NF_FILTER=m
 CONFIG_IP_NF_TARGET_REJECT=m
-CONFIG_IP_NF_TARGET_ULOG=m
 CONFIG_IP_NF_MANGLE=m
 CONFIG_IP_NF_TARGET_ECN=m
 CONFIG_IP_NF_TARGET_TTL=m
@@ -252,7 +251,6 @@ CONFIG_MEDIA_USB_SUPPORT=y
 CONFIG_USB_VIDEO_CLASS=m
 CONFIG_DRM=y
 CONFIG_DRM_RADEON=y
-CONFIG_VIDEO_OUTPUT_CONTROL=y
 CONFIG_FB_RADEON=y
 CONFIG_LCD_CLASS_DEVICE=y
 CONFIG_LCD_PLATFORM=m
@@ -335,7 +333,6 @@ CONFIG_STRIP_ASM_SYMS=y
 CONFIG_MAGIC_SYSRQ=y
 # CONFIG_SCHED_DEBUG is not set
 # CONFIG_DEBUG_PREEMPT is not set
-# CONFIG_RCU_CPU_STALL_VERBOSE is not set
 # CONFIG_FTRACE is not set
 CONFIG_SECURITY=y
 CONFIG_SECURITYFS=y
diff --git a/arch/mips/configs/malta_kvm_defconfig b/arch/mips/configs/malta_kvm_defconfig
index e233f878afef..80ecd94ed126 100644
--- a/arch/mips/configs/malta_kvm_defconfig
+++ b/arch/mips/configs/malta_kvm_defconfig
@@ -133,7 +133,6 @@ CONFIG_IP_NF_MATCH_ECN=m
 CONFIG_IP_NF_MATCH_TTL=m
 CONFIG_IP_NF_FILTER=m
 CONFIG_IP_NF_TARGET_REJECT=m
-CONFIG_IP_NF_TARGET_ULOG=m
 CONFIG_IP_NF_MANGLE=m
 CONFIG_IP_NF_TARGET_CLUSTERIP=m
 CONFIG_IP_NF_TARGET_ECN=m
diff --git a/arch/mips/configs/malta_kvm_guest_defconfig b/arch/mips/configs/malta_kvm_guest_defconfig
index fbe085c328ab..35ad1f8d1a79 100644
--- a/arch/mips/configs/malta_kvm_guest_defconfig
+++ b/arch/mips/configs/malta_kvm_guest_defconfig
@@ -132,7 +132,6 @@ CONFIG_IP_NF_MATCH_ECN=m
 CONFIG_IP_NF_MATCH_TTL=m
 CONFIG_IP_NF_FILTER=m
 CONFIG_IP_NF_TARGET_REJECT=m
-CONFIG_IP_NF_TARGET_ULOG=m
 CONFIG_IP_NF_MANGLE=m
 CONFIG_IP_NF_TARGET_CLUSTERIP=m
 CONFIG_IP_NF_TARGET_ECN=m
diff --git a/arch/mips/configs/malta_qemu_32r6_defconfig b/arch/mips/configs/malta_qemu_32r6_defconfig
index cbf37dd0c490..77145ecaa23b 100644
--- a/arch/mips/configs/malta_qemu_32r6_defconfig
+++ b/arch/mips/configs/malta_qemu_32r6_defconfig
@@ -42,7 +42,6 @@ CONFIG_SYN_COOKIES=y
 CONFIG_INET_AH=m
 CONFIG_INET_ESP=m
 CONFIG_INET_IPCOMP=m
-# CONFIG_INET_LRO is not set
 CONFIG_INET6_AH=m
 CONFIG_INET6_ESP=m
 CONFIG_INET6_IPCOMP=m
diff --git a/arch/mips/configs/maltaaprp_defconfig b/arch/mips/configs/maltaaprp_defconfig
index 35f6ba260df8..cc2687cfdc13 100644
--- a/arch/mips/configs/maltaaprp_defconfig
+++ b/arch/mips/configs/maltaaprp_defconfig
@@ -43,7 +43,6 @@ CONFIG_SYN_COOKIES=y
 CONFIG_INET_AH=m
 CONFIG_INET_ESP=m
 CONFIG_INET_IPCOMP=m
-# CONFIG_INET_LRO is not set
 CONFIG_INET6_AH=m
 CONFIG_INET6_ESP=m
 CONFIG_INET6_IPCOMP=m
@@ -135,7 +134,6 @@ CONFIG_HW_RANDOM=y
 CONFIG_POWER_RESET=y
 CONFIG_POWER_RESET_SYSCON=y
 # CONFIG_HWMON is not set
-CONFIG_VIDEO_OUTPUT_CONTROL=m
 CONFIG_FB=y
 CONFIG_FIRMWARE_EDID=y
 CONFIG_FB_MATROX=y
diff --git a/arch/mips/configs/maltasmvp_defconfig b/arch/mips/configs/maltasmvp_defconfig
index 900f14543eeb..55b68b981b05 100644
--- a/arch/mips/configs/maltasmvp_defconfig
+++ b/arch/mips/configs/maltasmvp_defconfig
@@ -46,7 +46,6 @@ CONFIG_SYN_COOKIES=y
 CONFIG_INET_AH=m
 CONFIG_INET_ESP=m
 CONFIG_INET_IPCOMP=m
-# CONFIG_INET_LRO is not set
 CONFIG_INET6_AH=m
 CONFIG_INET6_ESP=m
 CONFIG_INET6_IPCOMP=m
diff --git a/arch/mips/configs/maltasmvp_eva_defconfig b/arch/mips/configs/maltasmvp_eva_defconfig
index 8e2738b5e180..5ca590cf1635 100644
--- a/arch/mips/configs/maltasmvp_eva_defconfig
+++ b/arch/mips/configs/maltasmvp_eva_defconfig
@@ -47,7 +47,6 @@ CONFIG_SYN_COOKIES=y
 CONFIG_INET_AH=m
 CONFIG_INET_ESP=m
 CONFIG_INET_IPCOMP=m
-# CONFIG_INET_LRO is not set
 CONFIG_INET6_AH=m
 CONFIG_INET6_ESP=m
 CONFIG_INET6_IPCOMP=m
@@ -140,7 +139,6 @@ CONFIG_HW_RANDOM=y
 CONFIG_POWER_RESET=y
 CONFIG_POWER_RESET_SYSCON=y
 # CONFIG_HWMON is not set
-CONFIG_VIDEO_OUTPUT_CONTROL=m
 CONFIG_FB=y
 CONFIG_FIRMWARE_EDID=y
 CONFIG_FB_MATROX=y
diff --git a/arch/mips/configs/maltaup_defconfig b/arch/mips/configs/maltaup_defconfig
index 6dc4e309a691..7ea7c0ba2666 100644
--- a/arch/mips/configs/maltaup_defconfig
+++ b/arch/mips/configs/maltaup_defconfig
@@ -42,7 +42,6 @@ CONFIG_SYN_COOKIES=y
 CONFIG_INET_AH=m
 CONFIG_INET_ESP=m
 CONFIG_INET_IPCOMP=m
-# CONFIG_INET_LRO is not set
 CONFIG_INET6_AH=m
 CONFIG_INET6_ESP=m
 CONFIG_INET6_IPCOMP=m
@@ -134,7 +133,6 @@ CONFIG_HW_RANDOM=y
 CONFIG_POWER_RESET=y
 CONFIG_POWER_RESET_SYSCON=y
 # CONFIG_HWMON is not set
-CONFIG_VIDEO_OUTPUT_CONTROL=m
 CONFIG_FB=y
 CONFIG_FIRMWARE_EDID=y
 CONFIG_FB_MATROX=y
diff --git a/arch/mips/configs/markeins_defconfig b/arch/mips/configs/markeins_defconfig
index 0f08e4623ee4..43ce6576ab1c 100644
--- a/arch/mips/configs/markeins_defconfig
+++ b/arch/mips/configs/markeins_defconfig
@@ -1,7 +1,6 @@
 CONFIG_NEC_MARKEINS=y
 CONFIG_HZ_1000=y
 CONFIG_PREEMPT=y
-CONFIG_EXPERIMENTAL=y
 CONFIG_SYSVIPC=y
 CONFIG_POSIX_MQUEUE=y
 CONFIG_BSD_PROCESS_ACCT=y
@@ -92,7 +91,6 @@ CONFIG_IP_NF_MATCH_TTL=m
 CONFIG_IP_NF_FILTER=m
 CONFIG_IP_NF_TARGET_REJECT=m
 CONFIG_IP_NF_TARGET_LOG=m
-CONFIG_IP_NF_TARGET_ULOG=m
 CONFIG_NF_NAT=m
 CONFIG_IP_NF_TARGET_MASQUERADE=m
 CONFIG_IP_NF_TARGET_NETMAP=m
@@ -117,7 +115,6 @@ CONFIG_IP6_NF_MATCH_IPV6HEADER=m
 CONFIG_IP6_NF_MATCH_MH=m
 CONFIG_IP6_NF_MATCH_RT=m
 CONFIG_IP6_NF_TARGET_HL=m
-CONFIG_IP6_NF_TARGET_LOG=m
 CONFIG_IP6_NF_FILTER=m
 CONFIG_IP6_NF_TARGET_REJECT=m
 CONFIG_IP6_NF_MANGLE=m
@@ -125,7 +122,6 @@ CONFIG_IP6_NF_RAW=m
 CONFIG_FW_LOADER=m
 CONFIG_MTD=y
 CONFIG_MTD_CMDLINE_PARTS=y
-CONFIG_MTD_CHAR=y
 CONFIG_MTD_BLOCK=y
 CONFIG_MTD_CFI=y
 CONFIG_MTD_CFI_AMDSTD=y
diff --git a/arch/mips/configs/mips_paravirt_defconfig b/arch/mips/configs/mips_paravirt_defconfig
index 84cfcb4bf2ea..accf0db1dc6f 100644
--- a/arch/mips/configs/mips_paravirt_defconfig
+++ b/arch/mips/configs/mips_paravirt_defconfig
@@ -39,7 +39,6 @@ CONFIG_IP_MROUTE=y
 CONFIG_IP_PIMSM_V1=y
 CONFIG_IP_PIMSM_V2=y
 CONFIG_SYN_COOKIES=y
-# CONFIG_INET_LRO is not set
 CONFIG_IPV6=y
 # CONFIG_WIRELESS is not set
 CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug"
diff --git a/arch/mips/configs/mpc30x_defconfig b/arch/mips/configs/mpc30x_defconfig
index a2c045fab6c5..3486b034f726 100644
--- a/arch/mips/configs/mpc30x_defconfig
+++ b/arch/mips/configs/mpc30x_defconfig
@@ -1,6 +1,5 @@
 CONFIG_MACH_VR41XX=y
 CONFIG_VICTOR_MPC30X=y
-CONFIG_EXPERIMENTAL=y
 CONFIG_SYSVIPC=y
 CONFIG_LOG_BUF_SHIFT=14
 CONFIG_RELAY=y
@@ -31,8 +30,6 @@ CONFIG_BLK_DEV_SD=y
 CONFIG_ATA=y
 CONFIG_PATA_LEGACY=y
 CONFIG_NETDEVICES=y
-# CONFIG_NETDEV_1000 is not set
-# CONFIG_NETDEV_10000 is not set
 CONFIG_USB_PEGASUS=m
 # CONFIG_INPUT_MOUSEDEV is not set
 # CONFIG_INPUT_KEYBOARD is not set
@@ -45,13 +42,11 @@ CONFIG_SERIAL_VR41XX_CONSOLE=y
 CONFIG_GPIO_VR41XX=y
 # CONFIG_HWMON is not set
 # CONFIG_VGA_CONSOLE is not set
-# CONFIG_HID_SUPPORT is not set
 CONFIG_USB=m
 CONFIG_USB_OHCI_HCD=m
 CONFIG_RTC_CLASS=y
 CONFIG_RTC_DRV_VR41XX=y
 CONFIG_EXT2_FS=y
-CONFIG_AUTOFS_FS=y
 CONFIG_AUTOFS4_FS=y
 CONFIG_PROC_KCORE=y
 CONFIG_CONFIGFS_FS=m
diff --git a/arch/mips/configs/msp71xx_defconfig b/arch/mips/configs/msp71xx_defconfig
index 201edfb2637d..3c8c16b10732 100644
--- a/arch/mips/configs/msp71xx_defconfig
+++ b/arch/mips/configs/msp71xx_defconfig
@@ -2,7 +2,6 @@ CONFIG_PMC_MSP=y
 CONFIG_PMC_MSP7120_GW=y
 CONFIG_CPU_MIPS32_R2=y
 CONFIG_PREEMPT=y
-CONFIG_EXPERIMENTAL=y
 CONFIG_LOCALVERSION="-pmc"
 # CONFIG_SWAP is not set
 CONFIG_SYSVIPC=y
@@ -38,7 +37,6 @@ CONFIG_BRIDGE=y
 # CONFIG_PREVENT_FIRMWARE_BUILD is not set
 # CONFIG_FW_LOADER is not set
 CONFIG_MTD=y
-CONFIG_MTD_CHAR=y
 CONFIG_MTD_BLOCK=y
 CONFIG_MTD_CFI=y
 CONFIG_MTD_CFI_AMDSTD=y
diff --git a/arch/mips/configs/mtx1_defconfig b/arch/mips/configs/mtx1_defconfig
index f3f60056bc27..4011f1869e72 100644
--- a/arch/mips/configs/mtx1_defconfig
+++ b/arch/mips/configs/mtx1_defconfig
@@ -1,7 +1,6 @@
 CONFIG_MIPS_ALCHEMY=y
 CONFIG_MIPS_MTX1=y
 CONFIG_PREEMPT_VOLUNTARY=y
-CONFIG_EXPERIMENTAL=y
 # CONFIG_LOCALVERSION_AUTO is not set
 CONFIG_SYSVIPC=y
 CONFIG_POSIX_MQUEUE=y
@@ -81,7 +80,6 @@ CONFIG_NETFILTER_XT_MATCH_REALM=m
 CONFIG_NETFILTER_XT_MATCH_STATISTIC=m
 CONFIG_NETFILTER_XT_MATCH_STRING=m
 CONFIG_NETFILTER_XT_MATCH_TCPMSS=m
-CONFIG_IP_NF_QUEUE=m
 CONFIG_IP_NF_IPTABLES=m
 CONFIG_IP_NF_MATCH_ADDRTYPE=m
 CONFIG_IP_NF_MATCH_AH=m
@@ -90,7 +88,6 @@ CONFIG_IP_NF_MATCH_TTL=m
 CONFIG_IP_NF_FILTER=m
 CONFIG_IP_NF_TARGET_REJECT=m
 CONFIG_IP_NF_TARGET_LOG=m
-CONFIG_IP_NF_TARGET_ULOG=m
 CONFIG_IP_NF_MANGLE=m
 CONFIG_IP_NF_TARGET_ECN=m
 CONFIG_IP_NF_TARGET_TTL=m
@@ -98,7 +95,6 @@ CONFIG_IP_NF_RAW=m
 CONFIG_IP_NF_ARPTABLES=m
 CONFIG_IP_NF_ARPFILTER=m
 CONFIG_IP_NF_ARP_MANGLE=m
-CONFIG_IP6_NF_QUEUE=m
 CONFIG_IP6_NF_IPTABLES=m
 CONFIG_IP6_NF_MATCH_AH=m
 CONFIG_IP6_NF_MATCH_EUI64=m
@@ -108,7 +104,6 @@ CONFIG_IP6_NF_MATCH_HL=m
 CONFIG_IP6_NF_MATCH_IPV6HEADER=m
 CONFIG_IP6_NF_MATCH_RT=m
 CONFIG_IP6_NF_TARGET_HL=m
-CONFIG_IP6_NF_TARGET_LOG=m
 CONFIG_IP6_NF_FILTER=m
 CONFIG_IP6_NF_TARGET_REJECT=m
 CONFIG_IP6_NF_MANGLE=m
@@ -225,8 +220,6 @@ CONFIG_TOSHIBA_FIR=m
 CONFIG_VLSI_FIR=m
 CONFIG_MCS_FIR=m
 CONFIG_BT=m
-CONFIG_BT_L2CAP=y
-CONFIG_BT_SCO=y
 CONFIG_BT_RFCOMM=m
 CONFIG_BT_RFCOMM_TTY=y
 CONFIG_BT_BNEP=m
@@ -246,7 +239,6 @@ CONFIG_BT_HCIBTUART=m
 CONFIG_BT_HCIVHCI=m
 CONFIG_CONNECTOR=m
 CONFIG_MTD=y
-CONFIG_MTD_CHAR=y
 CONFIG_MTD_BLOCK=y
 CONFIG_MTD_CFI=y
 CONFIG_MTD_CFI_INTELEXT=y
@@ -257,7 +249,6 @@ CONFIG_MTD_PHYSMAP=y
 CONFIG_BLK_DEV_NBD=m
 CONFIG_BLK_DEV_RAM=y
 CONFIG_BLK_DEV_RAM_SIZE=65536
-# CONFIG_MISC_DEVICES is not set
 CONFIG_SCSI=m
 CONFIG_BLK_DEV_SD=m
 CONFIG_CHR_DEV_SG=m
@@ -596,7 +587,6 @@ CONFIG_USB_STORAGE_SDDR55=m
 CONFIG_USB_STORAGE_JUMPSHOT=m
 CONFIG_USB_STORAGE_ALAUDA=m
 CONFIG_USB_STORAGE_KARMA=m
-CONFIG_USB_LIBUSUAL=y
 CONFIG_USB_MDC800=m
 CONFIG_USB_MICROTEK=m
 CONFIG_USB_SERIAL=m
@@ -640,7 +630,6 @@ CONFIG_USB_ADUTUX=m
 CONFIG_USB_RIO500=m
 CONFIG_USB_LEGOTOWER=m
 CONFIG_USB_LCD=m
-CONFIG_USB_LED=m
 CONFIG_USB_CYPRESS_CY7C63=m
 CONFIG_USB_CYTHERM=m
 CONFIG_USB_IDMOUSE=m
diff --git a/arch/mips/configs/nlm_xlp_defconfig b/arch/mips/configs/nlm_xlp_defconfig
index 07d01827a973..5720ce23e9aa 100644
--- a/arch/mips/configs/nlm_xlp_defconfig
+++ b/arch/mips/configs/nlm_xlp_defconfig
@@ -6,7 +6,6 @@ CONFIG_KSM=y
 CONFIG_DEFAULT_MMAP_MIN_ADDR=65536
 CONFIG_SMP=y
 # CONFIG_SECCOMP is not set
-CONFIG_EXPERIMENTAL=y
 # CONFIG_LOCALVERSION_AUTO is not set
 CONFIG_SYSVIPC=y
 CONFIG_POSIX_MQUEUE=y
@@ -183,14 +182,12 @@ CONFIG_IP_VS_SED=m
 CONFIG_IP_VS_NQ=m
 CONFIG_IP_VS_FTP=m
 CONFIG_NF_CONNTRACK_IPV4=m
-CONFIG_IP_NF_QUEUE=m
 CONFIG_IP_NF_IPTABLES=m
 CONFIG_IP_NF_MATCH_AH=m
 CONFIG_IP_NF_MATCH_ECN=m
 CONFIG_IP_NF_MATCH_TTL=m
 CONFIG_IP_NF_FILTER=m
 CONFIG_IP_NF_TARGET_REJECT=m
-CONFIG_IP_NF_TARGET_ULOG=m
 CONFIG_NF_NAT=m
 CONFIG_IP_NF_TARGET_MASQUERADE=m
 CONFIG_IP_NF_TARGET_NETMAP=m
@@ -317,7 +314,6 @@ CONFIG_DEVTMPFS_MOUNT=y
 CONFIG_CONNECTOR=y
 CONFIG_MTD=y
 CONFIG_MTD_CMDLINE_PARTS=y
-CONFIG_MTD_CHAR=y
 CONFIG_MTD_BLOCK=y
 CONFIG_MTD_CFI=y
 CONFIG_MTD_CFI_ADV_OPTIONS=y
@@ -607,7 +603,6 @@ CONFIG_CRYPTO_SEED=m
 CONFIG_CRYPTO_SERPENT=m
 CONFIG_CRYPTO_TEA=m
 CONFIG_CRYPTO_TWOFISH=m
-CONFIG_CRYPTO_ZLIB=m
 CONFIG_CRYPTO_LZO=m
 CONFIG_CRC_CCITT=m
 CONFIG_CRC7=m
diff --git a/arch/mips/configs/nlm_xlr_defconfig b/arch/mips/configs/nlm_xlr_defconfig
index f59969acb724..fea56c535d92 100644
--- a/arch/mips/configs/nlm_xlr_defconfig
+++ b/arch/mips/configs/nlm_xlr_defconfig
@@ -7,7 +7,6 @@ CONFIG_NO_HZ=y
 CONFIG_HIGH_RES_TIMERS=y
 CONFIG_PREEMPT_VOLUNTARY=y
 CONFIG_KEXEC=y
-CONFIG_EXPERIMENTAL=y
 CONFIG_CROSS_COMPILE=""
 # CONFIG_LOCALVERSION_AUTO is not set
 CONFIG_SYSVIPC=y
@@ -163,7 +162,6 @@ CONFIG_IP_VS_SED=m
 CONFIG_IP_VS_NQ=m
 CONFIG_IP_VS_FTP=m
 CONFIG_NF_CONNTRACK_IPV4=m
-CONFIG_IP_NF_QUEUE=m
 CONFIG_IP_NF_IPTABLES=m
 CONFIG_IP_NF_MATCH_AH=m
 CONFIG_IP_NF_MATCH_ECN=m
@@ -171,7 +169,6 @@ CONFIG_IP_NF_MATCH_TTL=m
 CONFIG_IP_NF_FILTER=m
 CONFIG_IP_NF_TARGET_REJECT=m
 CONFIG_IP_NF_TARGET_LOG=m
-CONFIG_IP_NF_TARGET_ULOG=m
 CONFIG_NF_NAT=m
 CONFIG_IP_NF_TARGET_MASQUERADE=m
 CONFIG_IP_NF_TARGET_NETMAP=m
@@ -186,7 +183,6 @@ CONFIG_IP_NF_ARPTABLES=m
 CONFIG_IP_NF_ARPFILTER=m
 CONFIG_IP_NF_ARP_MANGLE=m
 CONFIG_NF_CONNTRACK_IPV6=m
-CONFIG_IP6_NF_QUEUE=m
 CONFIG_IP6_NF_IPTABLES=m
 CONFIG_IP6_NF_MATCH_AH=m
 CONFIG_IP6_NF_MATCH_EUI64=m
@@ -197,7 +193,6 @@ CONFIG_IP6_NF_MATCH_IPV6HEADER=m
 CONFIG_IP6_NF_MATCH_MH=m
 CONFIG_IP6_NF_MATCH_RT=m
 CONFIG_IP6_NF_TARGET_HL=m
-CONFIG_IP6_NF_TARGET_LOG=m
 CONFIG_IP6_NF_FILTER=m
 CONFIG_IP6_NF_TARGET_REJECT=m
 CONFIG_IP6_NF_MANGLE=m
@@ -308,7 +303,6 @@ CONFIG_BLK_DEV_OSD=m
 CONFIG_BLK_DEV_RAM=y
 CONFIG_BLK_DEV_RAM_SIZE=65536
 CONFIG_CDROM_PKTCDVD=y
-CONFIG_MISC_DEVICES=y
 CONFIG_RAID_ATTRS=m
 CONFIG_SCSI=y
 CONFIG_BLK_DEV_SD=y
@@ -369,7 +363,6 @@ CONFIG_RTC_CLASS=y
 CONFIG_RTC_DRV_DS1374=y
 # CONFIG_HWMON is not set
 # CONFIG_VGA_CONSOLE is not set
-# CONFIG_HID_SUPPORT is not set
 # CONFIG_USB_SUPPORT is not set
 CONFIG_UIO=y
 CONFIG_UIO_PDRV=m
@@ -522,7 +515,6 @@ CONFIG_SCHEDSTATS=y
 CONFIG_TIMER_STATS=y
 CONFIG_DEBUG_INFO=y
 CONFIG_DEBUG_MEMORY_INIT=y
-CONFIG_SYSCTL_SYSCALL_CHECK=y
 CONFIG_SCHED_TRACER=y
 CONFIG_BLK_DEV_IO_TRACE=y
 CONFIG_KGDB=y
@@ -568,7 +560,6 @@ CONFIG_CRYPTO_SEED=m
 CONFIG_CRYPTO_SERPENT=m
 CONFIG_CRYPTO_TEA=m
 CONFIG_CRYPTO_TWOFISH=m
-CONFIG_CRYPTO_ZLIB=m
 CONFIG_CRYPTO_LZO=m
 CONFIG_CRC_CCITT=m
 CONFIG_CRC7=m
diff --git a/arch/mips/configs/pnx8335_stb225_defconfig b/arch/mips/configs/pnx8335_stb225_defconfig
index c887066ecc2a..81b5eb89446c 100644
--- a/arch/mips/configs/pnx8335_stb225_defconfig
+++ b/arch/mips/configs/pnx8335_stb225_defconfig
@@ -5,7 +5,6 @@ CONFIG_HIGH_RES_TIMERS=y
 CONFIG_HZ_128=y
 CONFIG_PREEMPT_VOLUNTARY=y
 # CONFIG_SECCOMP is not set
-CONFIG_EXPERIMENTAL=y
 # CONFIG_LOCALVERSION_AUTO is not set
 # CONFIG_SWAP is not set
 CONFIG_SYSVIPC=y
@@ -27,12 +26,10 @@ CONFIG_IP_MULTICAST=y
 CONFIG_IP_PNP=y
 CONFIG_IP_PNP_DHCP=y
 CONFIG_INET_AH=y
-# CONFIG_INET_LRO is not set
 # CONFIG_IPV6 is not set
 CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug"
 CONFIG_MTD=y
 CONFIG_MTD_CMDLINE_PARTS=y
-CONFIG_MTD_CHAR=y
 CONFIG_MTD_BLOCK=y
 CONFIG_MTD_CFI=y
 CONFIG_MTD_CFI_ADV_OPTIONS=y
@@ -41,15 +38,12 @@ CONFIG_MTD_CFI_GEOMETRY=y
 CONFIG_MTD_CFI_AMDSTD=y
 CONFIG_MTD_PHYSMAP=y
 CONFIG_BLK_DEV_LOOP=y
-# CONFIG_MISC_DEVICES is not set
 CONFIG_BLK_DEV_SD=y
 # CONFIG_SCSI_LOWLEVEL is not set
 CONFIG_ATA=y
 CONFIG_NETDEVICES=y
 CONFIG_NET_ETHERNET=y
 CONFIG_MII=y
-# CONFIG_NETDEV_1000 is not set
-# CONFIG_NETDEV_10000 is not set
 # CONFIG_INPUT_MOUSEDEV is not set
 CONFIG_INPUT_EVDEV=m
 CONFIG_INPUT_EVBUG=m
@@ -94,4 +88,3 @@ CONFIG_NLS_ASCII=m
 CONFIG_NLS_ISO8859_1=m
 CONFIG_NLS_ISO8859_15=m
 CONFIG_NLS_UTF8=m
-CONFIG_SYSCTL_SYSCALL_CHECK=y
diff --git a/arch/mips/configs/qi_lb60_defconfig b/arch/mips/configs/qi_lb60_defconfig
index d7bb8cce1068..3f1333517405 100644
--- a/arch/mips/configs/qi_lb60_defconfig
+++ b/arch/mips/configs/qi_lb60_defconfig
@@ -34,7 +34,6 @@ CONFIG_IP_MROUTE_MULTIPLE_TABLES=y
 # CONFIG_INET_XFRM_MODE_TRANSPORT is not set
 # CONFIG_INET_XFRM_MODE_TUNNEL is not set
 # CONFIG_INET_XFRM_MODE_BEET is not set
-# CONFIG_INET_LRO is not set
 # CONFIG_INET_DIAG is not set
 CONFIG_TCP_CONG_ADVANCED=y
 # CONFIG_TCP_CONG_BIC is not set
@@ -109,7 +108,6 @@ CONFIG_USB_GADGET_DEBUG=y
 CONFIG_USB_ETH=y
 # CONFIG_USB_ETH_RNDIS is not set
 CONFIG_MMC=y
-CONFIG_MMC_UNSAFE_RESUME=y
 # CONFIG_MMC_BLOCK_BOUNCE is not set
 CONFIG_MMC_JZ4740=y
 CONFIG_RTC_CLASS=y
@@ -183,7 +181,6 @@ CONFIG_PANIC_ON_OOPS=y
 # CONFIG_FTRACE is not set
 CONFIG_KGDB=y
 CONFIG_RUNTIME_DEBUG=y
-CONFIG_CRYPTO_ZLIB=y
 # CONFIG_CRYPTO_ANSI_CPRNG is not set
 CONFIG_FONTS=y
 CONFIG_FONT_SUN8x16=y
diff --git a/arch/mips/configs/rb532_defconfig b/arch/mips/configs/rb532_defconfig
index 5d9d708e12e5..6fa56c6e53f5 100644
--- a/arch/mips/configs/rb532_defconfig
+++ b/arch/mips/configs/rb532_defconfig
@@ -3,7 +3,6 @@ CONFIG_NO_HZ=y
 CONFIG_HIGH_RES_TIMERS=y
 CONFIG_HZ_100=y
 # CONFIG_SECCOMP is not set
-CONFIG_EXPERIMENTAL=y
 # CONFIG_LOCALVERSION_AUTO is not set
 CONFIG_SYSVIPC=y
 CONFIG_BSD_PROCESS_ACCT=y
@@ -39,7 +38,6 @@ CONFIG_SYN_COOKIES=y
 # CONFIG_INET_XFRM_MODE_TRANSPORT is not set
 # CONFIG_INET_XFRM_MODE_TUNNEL is not set
 # CONFIG_INET_XFRM_MODE_BEET is not set
-# CONFIG_INET_LRO is not set
 CONFIG_INET_DIAG=m
 CONFIG_TCP_CONG_ADVANCED=y
 CONFIG_TCP_CONG_CUBIC=m
@@ -114,7 +112,6 @@ CONFIG_NET_CLS_IND=y
 CONFIG_HAMRADIO=y
 CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug"
 CONFIG_MTD=y
-CONFIG_MTD_CHAR=y
 CONFIG_MTD_BLOCK=y
 CONFIG_MTD_BLOCK2MTD=y
 CONFIG_MTD_NAND=y
@@ -129,8 +126,6 @@ CONFIG_NET_ETHERNET=y
 CONFIG_KORINA=y
 CONFIG_NET_PCI=y
 CONFIG_VIA_RHINE=y
-# CONFIG_NETDEV_1000 is not set
-# CONFIG_NETDEV_10000 is not set
 CONFIG_ATMEL=m
 CONFIG_PPP=m
 CONFIG_PPP_MULTILINK=y
@@ -183,7 +178,6 @@ CONFIG_BSD_DISKLABEL=y
 CONFIG_STRIP_ASM_SYMS=y
 CONFIG_CRYPTO=y
 CONFIG_CRYPTO_TEST=m
-CONFIG_CRYPTO_ZLIB=y
 # CONFIG_CRYPTO_HW is not set
 CONFIG_CRC16=m
 CONFIG_LIBCRC32C=m
diff --git a/arch/mips/configs/rbtx49xx_defconfig b/arch/mips/configs/rbtx49xx_defconfig
index 43d55e5abacb..fb195e29e449 100644
--- a/arch/mips/configs/rbtx49xx_defconfig
+++ b/arch/mips/configs/rbtx49xx_defconfig
@@ -31,12 +31,10 @@ CONFIG_IP_PNP=y
 # CONFIG_INET_XFRM_MODE_TRANSPORT is not set
 # CONFIG_INET_XFRM_MODE_TUNNEL is not set
 # CONFIG_INET_XFRM_MODE_BEET is not set
-# CONFIG_INET_LRO is not set
 # CONFIG_IPV6 is not set
 # CONFIG_WIRELESS is not set
 CONFIG_MTD=y
 CONFIG_MTD_CMDLINE_PARTS=y
-CONFIG_MTD_CHAR=y
 CONFIG_MTD_BLOCK=m
 CONFIG_MTD_BLOCK_RO=m
 CONFIG_MTD_CFI=y
@@ -50,7 +48,6 @@ CONFIG_MTD_NAND_TXX9NDFMC=m
 CONFIG_BLK_DEV_LOOP=y
 CONFIG_BLK_DEV_RAM=y
 CONFIG_BLK_DEV_RAM_SIZE=8192
-# CONFIG_MISC_DEVICES is not set
 CONFIG_IDE=y
 CONFIG_BLK_DEV_IDE_TX4938=y
 CONFIG_BLK_DEV_IDE_TX4939=y
@@ -60,8 +57,6 @@ CONFIG_SMC91X=y
 CONFIG_NE2000=y
 CONFIG_NET_PCI=y
 CONFIG_TC35815=y
-# CONFIG_NETDEV_1000 is not set
-# CONFIG_NETDEV_10000 is not set
 # CONFIG_WLAN is not set
 # CONFIG_INPUT is not set
 # CONFIG_SERIO is not set
@@ -108,5 +103,3 @@ CONFIG_NFS_V3=y
 CONFIG_ROOT_NFS=y
 CONFIG_STRIP_ASM_SYMS=y
 CONFIG_DEBUG_FS=y
-# CONFIG_RCU_CPU_STALL_DETECTOR is not set
-CONFIG_SYSCTL_SYSCALL_CHECK=y
diff --git a/arch/mips/configs/rm200_defconfig b/arch/mips/configs/rm200_defconfig
index c2b4e3f33a73..99679e514042 100644
--- a/arch/mips/configs/rm200_defconfig
+++ b/arch/mips/configs/rm200_defconfig
@@ -3,7 +3,6 @@ CONFIG_CPU_LITTLE_ENDIAN=y
 CONFIG_ARC_CONSOLE=y
 CONFIG_HZ_1000=y
 CONFIG_PREEMPT_VOLUNTARY=y
-CONFIG_EXPERIMENTAL=y
 CONFIG_SYSVIPC=y
 CONFIG_POSIX_MQUEUE=y
 CONFIG_BSD_PROCESS_ACCT=y
@@ -94,7 +93,6 @@ CONFIG_NETFILTER_XT_MATCH_STATISTIC=m
 CONFIG_NETFILTER_XT_MATCH_STRING=m
 CONFIG_NETFILTER_XT_MATCH_TCPMSS=m
 CONFIG_NF_CONNTRACK_IPV4=m
-CONFIG_IP_NF_QUEUE=m
 CONFIG_IP_NF_IPTABLES=m
 CONFIG_IP_NF_MATCH_ADDRTYPE=m
 CONFIG_IP_NF_MATCH_AH=m
@@ -103,7 +101,6 @@ CONFIG_IP_NF_MATCH_TTL=m
 CONFIG_IP_NF_FILTER=m
 CONFIG_IP_NF_TARGET_REJECT=m
 CONFIG_IP_NF_TARGET_LOG=m
-CONFIG_IP_NF_TARGET_ULOG=m
 CONFIG_NF_NAT=m
 CONFIG_IP_NF_TARGET_MASQUERADE=m
 CONFIG_IP_NF_TARGET_NETMAP=m
@@ -118,7 +115,6 @@ CONFIG_IP_NF_ARPTABLES=m
 CONFIG_IP_NF_ARPFILTER=m
 CONFIG_IP_NF_ARP_MANGLE=m
 CONFIG_NF_CONNTRACK_IPV6=m
-CONFIG_IP6_NF_QUEUE=m
 CONFIG_IP6_NF_IPTABLES=m
 CONFIG_IP6_NF_MATCH_AH=m
 CONFIG_IP6_NF_MATCH_EUI64=m
@@ -129,7 +125,6 @@ CONFIG_IP6_NF_MATCH_IPV6HEADER=m
 CONFIG_IP6_NF_MATCH_MH=m
 CONFIG_IP6_NF_MATCH_RT=m
 CONFIG_IP6_NF_TARGET_HL=m
-CONFIG_IP6_NF_TARGET_LOG=m
 CONFIG_IP6_NF_FILTER=m
 CONFIG_IP6_NF_TARGET_REJECT=m
 CONFIG_IP6_NF_MANGLE=m
@@ -214,7 +209,6 @@ CONFIG_BLK_DEV_LOOP=m
 CONFIG_BLK_DEV_CRYPTOLOOP=m
 CONFIG_BLK_DEV_NBD=m
 CONFIG_BLK_DEV_SX8=m
-CONFIG_BLK_DEV_UB=m
 CONFIG_BLK_DEV_RAM=m
 CONFIG_CDROM_PKTCDVD=m
 CONFIG_ATA_OVER_ETH=m
@@ -353,7 +347,6 @@ CONFIG_USB_SERIAL_OMNINET=m
 CONFIG_USB_RIO500=m
 CONFIG_USB_LEGOTOWER=m
 CONFIG_USB_LCD=m
-CONFIG_USB_LED=m
 CONFIG_USB_CYTHERM=m
 CONFIG_USB_SISUSBVGA=m
 CONFIG_USB_LD=m
@@ -366,7 +359,6 @@ CONFIG_REISERFS_FS_POSIX_ACL=y
 CONFIG_REISERFS_FS_SECURITY=y
 CONFIG_XFS_FS=m
 CONFIG_XFS_QUOTA=y
-CONFIG_AUTOFS_FS=m
 CONFIG_AUTOFS4_FS=m
 CONFIG_FUSE_FS=m
 CONFIG_ISO9660_FS=m
diff --git a/arch/mips/configs/rt305x_defconfig b/arch/mips/configs/rt305x_defconfig
index d14ae2fa7d13..c695b7b1c4ae 100644
--- a/arch/mips/configs/rt305x_defconfig
+++ b/arch/mips/configs/rt305x_defconfig
@@ -5,7 +5,6 @@ CONFIG_CPU_MIPS32_R2=y
 # CONFIG_CROSS_MEMORY_ATTACH is not set
 CONFIG_HZ_100=y
 # CONFIG_SECCOMP is not set
-CONFIG_EXPERIMENTAL=y
 # CONFIG_LOCALVERSION_AUTO is not set
 CONFIG_SYSVIPC=y
 CONFIG_HIGH_RES_TIMERS=y
@@ -44,7 +43,6 @@ CONFIG_SYN_COOKIES=y
 # CONFIG_INET_XFRM_MODE_TRANSPORT is not set
 # CONFIG_INET_XFRM_MODE_TUNNEL is not set
 # CONFIG_INET_XFRM_MODE_BEET is not set
-# CONFIG_INET_LRO is not set
 # CONFIG_INET_DIAG is not set
 CONFIG_TCP_CONG_ADVANCED=y
 # CONFIG_TCP_CONG_BIC is not set
diff --git a/arch/mips/configs/sb1250_swarm_defconfig b/arch/mips/configs/sb1250_swarm_defconfig
index 7fca09fedb59..c724bdd6a7e6 100644
--- a/arch/mips/configs/sb1250_swarm_defconfig
+++ b/arch/mips/configs/sb1250_swarm_defconfig
@@ -4,7 +4,6 @@ CONFIG_64BIT=y
 CONFIG_SMP=y
 CONFIG_HIGH_RES_TIMERS=y
 CONFIG_HZ_1000=y
-CONFIG_EXPERIMENTAL=y
 CONFIG_SYSVIPC=y
 CONFIG_LOG_BUF_SHIFT=15
 CONFIG_CGROUPS=y
diff --git a/arch/mips/configs/tb0219_defconfig b/arch/mips/configs/tb0219_defconfig
index 11f51505d562..4041597e3170 100644
--- a/arch/mips/configs/tb0219_defconfig
+++ b/arch/mips/configs/tb0219_defconfig
@@ -1,6 +1,5 @@
 CONFIG_MACH_VR41XX=y
 CONFIG_TANBAC_TB0219=y
-CONFIG_EXPERIMENTAL=y
 CONFIG_SYSVIPC=y
 CONFIG_LOG_BUF_SHIFT=14
 CONFIG_SYSFS_DEPRECATED_V2=y
@@ -31,7 +30,6 @@ CONFIG_SYN_COOKIES=y
 # CONFIG_INET_XFRM_MODE_TRANSPORT is not set
 # CONFIG_INET_XFRM_MODE_TUNNEL is not set
 # CONFIG_INET_XFRM_MODE_BEET is not set
-# CONFIG_INET_LRO is not set
 # CONFIG_IPV6 is not set
 CONFIG_NETWORK_SECMARK=y
 CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug"
@@ -40,7 +38,6 @@ CONFIG_BLK_DEV_LOOP=m
 CONFIG_BLK_DEV_NBD=m
 CONFIG_BLK_DEV_RAM=y
 CONFIG_BLK_DEV_XIP=y
-# CONFIG_MISC_DEVICES is not set
 CONFIG_NETDEVICES=y
 CONFIG_PHYLIB=m
 CONFIG_MARVELL_PHY=m
@@ -57,7 +54,6 @@ CONFIG_VIA_RHINE=y
 CONFIG_VIA_RHINE_MMIO=y
 CONFIG_R8169=y
 CONFIG_VIA_VELOCITY=y
-# CONFIG_NETDEV_10000 is not set
 # CONFIG_INPUT_MOUSEDEV is not set
 # CONFIG_INPUT_KEYBOARD is not set
 # CONFIG_INPUT_MOUSE is not set
@@ -70,7 +66,6 @@ CONFIG_SERIAL_VR41XX_CONSOLE=y
 CONFIG_GPIO_TB0219=y
 # CONFIG_HWMON is not set
 # CONFIG_VGA_CONSOLE is not set
-# CONFIG_HID_SUPPORT is not set
 CONFIG_USB=m
 CONFIG_USB_MON=m
 CONFIG_USB_EHCI_HCD=m
@@ -91,6 +86,5 @@ CONFIG_NFS_V3=y
 CONFIG_ROOT_NFS=y
 CONFIG_NFSD=y
 CONFIG_NFSD_V3=y
-CONFIG_SYSCTL_SYSCALL_CHECK=y
 CONFIG_CMDLINE_BOOL=y
 CONFIG_CMDLINE="cca=3 mem=64M console=ttyVR0,115200 ip=any root=/dev/nfs"
diff --git a/arch/mips/configs/tb0226_defconfig b/arch/mips/configs/tb0226_defconfig
index 9327b3af32cd..565f0441c50d 100644
--- a/arch/mips/configs/tb0226_defconfig
+++ b/arch/mips/configs/tb0226_defconfig
@@ -1,6 +1,5 @@
 CONFIG_MACH_VR41XX=y
 CONFIG_TANBAC_TB0226=y
-CONFIG_EXPERIMENTAL=y
 CONFIG_SYSVIPC=y
 CONFIG_LOG_BUF_SHIFT=14
 CONFIG_SYSFS_DEPRECATED_V2=y
@@ -29,7 +28,6 @@ CONFIG_SYN_COOKIES=y
 # CONFIG_INET_XFRM_MODE_TRANSPORT is not set
 # CONFIG_INET_XFRM_MODE_TUNNEL is not set
 # CONFIG_INET_XFRM_MODE_BEET is not set
-# CONFIG_INET_LRO is not set
 # CONFIG_IPV6 is not set
 CONFIG_NETWORK_SECMARK=y
 CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug"
@@ -37,7 +35,6 @@ CONFIG_BLK_DEV_LOOP=m
 CONFIG_BLK_DEV_NBD=m
 CONFIG_BLK_DEV_RAM=y
 CONFIG_BLK_DEV_XIP=y
-# CONFIG_MISC_DEVICES is not set
 CONFIG_SCSI=y
 CONFIG_BLK_DEV_SD=y
 CONFIG_SCSI_MULTI_LUN=y
@@ -49,8 +46,6 @@ CONFIG_NETDEVICES=y
 CONFIG_NET_ETHERNET=y
 CONFIG_NET_PCI=y
 CONFIG_E100=y
-# CONFIG_NETDEV_1000 is not set
-# CONFIG_NETDEV_10000 is not set
 CONFIG_USB_CATC=m
 CONFIG_USB_KAWETH=m
 CONFIG_USB_PEGASUS=m
@@ -66,7 +61,6 @@ CONFIG_SERIAL_VR41XX_CONSOLE=y
 # CONFIG_HW_RANDOM is not set
 # CONFIG_HWMON is not set
 # CONFIG_VGA_CONSOLE is not set
-# CONFIG_HID_SUPPORT is not set
 CONFIG_USB=y
 CONFIG_USB_EHCI_HCD=y
 # CONFIG_USB_EHCI_TT_NEWSCHED is not set
@@ -87,7 +81,6 @@ CONFIG_NFS_V3=y
 CONFIG_ROOT_NFS=y
 CONFIG_NFSD=m
 CONFIG_NFSD_V3=y
-CONFIG_SYSCTL_SYSCALL_CHECK=y
 CONFIG_CMDLINE_BOOL=y
 CONFIG_CMDLINE="cca=3 mem=32M console=ttyVR0,115200"
 CONFIG_CRC32=m
diff --git a/arch/mips/configs/tb0287_defconfig b/arch/mips/configs/tb0287_defconfig
index a967289b7970..a702be602fb9 100644
--- a/arch/mips/configs/tb0287_defconfig
+++ b/arch/mips/configs/tb0287_defconfig
@@ -1,5 +1,4 @@
 CONFIG_MACH_VR41XX=y
-CONFIG_EXPERIMENTAL=y
 CONFIG_SYSVIPC=y
 CONFIG_LOG_BUF_SHIFT=14
 CONFIG_SYSFS_DEPRECATED_V2=y
@@ -31,7 +30,6 @@ CONFIG_SYN_COOKIES=y
 # CONFIG_INET_XFRM_MODE_TRANSPORT is not set
 # CONFIG_INET_XFRM_MODE_TUNNEL is not set
 # CONFIG_INET_XFRM_MODE_BEET is not set
-# CONFIG_INET_LRO is not set
 CONFIG_TCP_CONG_ADVANCED=y
 CONFIG_TCP_CONG_BIC=y
 CONFIG_TCP_CONG_CUBIC=m
@@ -43,7 +41,6 @@ CONFIG_BLK_DEV_LOOP=m
 CONFIG_BLK_DEV_NBD=m
 CONFIG_BLK_DEV_RAM=y
 CONFIG_BLK_DEV_XIP=y
-# CONFIG_MISC_DEVICES is not set
 CONFIG_BLK_DEV_SD=y
 CONFIG_SCSI_SCAN_ASYNC=y
 # CONFIG_SCSI_LOWLEVEL is not set
@@ -64,7 +61,6 @@ CONFIG_VIA_RHINE=y
 CONFIG_VIA_RHINE_MMIO=y
 CONFIG_R8169=y
 CONFIG_VIA_VELOCITY=y
-# CONFIG_NETDEV_10000 is not set
 # CONFIG_INPUT_KEYBOARD is not set
 # CONFIG_INPUT_MOUSE is not set
 # CONFIG_SERIO is not set
@@ -76,7 +72,6 @@ CONFIG_SERIAL_VR41XX_CONSOLE=y
 CONFIG_GPIO_VR41XX=y
 # CONFIG_HWMON is not set
 CONFIG_MFD_SM501=y
-CONFIG_VIDEO_OUTPUT_CONTROL=m
 CONFIG_FB=y
 CONFIG_FB_SM501=y
 # CONFIG_VGA_CONSOLE is not set
diff --git a/arch/mips/configs/workpad_defconfig b/arch/mips/configs/workpad_defconfig
index ee4b2be43c44..a84eac409c9c 100644
--- a/arch/mips/configs/workpad_defconfig
+++ b/arch/mips/configs/workpad_defconfig
@@ -1,6 +1,5 @@
 CONFIG_MACH_VR41XX=y
 CONFIG_IBM_WORKPAD=y
-CONFIG_EXPERIMENTAL=y
 CONFIG_SYSVIPC=y
 CONFIG_LOG_BUF_SHIFT=14
 # CONFIG_CC_OPTIMIZE_FOR_SIZE is not set
@@ -28,13 +27,10 @@ CONFIG_IP_MULTICAST=y
 # CONFIG_IPV6 is not set
 CONFIG_NETWORK_SECMARK=y
 CONFIG_BLK_DEV_RAM=m
-# CONFIG_MISC_DEVICES is not set
 CONFIG_IDE=y
 CONFIG_BLK_DEV_IDECS=m
 CONFIG_IDE_GENERIC=y
 CONFIG_NETDEVICES=y
-# CONFIG_NETDEV_1000 is not set
-# CONFIG_NETDEV_10000 is not set
 CONFIG_NET_PCMCIA=y
 CONFIG_PCMCIA_3C589=m
 CONFIG_PCMCIA_3C574=m
diff --git a/arch/mips/dec/int-handler.S b/arch/mips/dec/int-handler.S
index 1910223a9c02..cea2bb1621e6 100644
--- a/arch/mips/dec/int-handler.S
+++ b/arch/mips/dec/int-handler.S
@@ -147,23 +147,12 @@
 		 * Find irq with highest priority
 		 */
 		# open coded PTR_LA t1, cpu_mask_nr_tbl
-#if (_MIPS_SZPTR == 32)
+#if defined(CONFIG_32BIT) || defined(KBUILD_64BIT_SYM32)
 		# open coded la t1, cpu_mask_nr_tbl
 		lui	t1, %hi(cpu_mask_nr_tbl)
 		addiu	t1, %lo(cpu_mask_nr_tbl)
-
-#endif
-#if (_MIPS_SZPTR == 64)
-		# open coded dla t1, cpu_mask_nr_tbl
-		.set	push
-		.set	noat
-		lui	t1, %highest(cpu_mask_nr_tbl)
-		lui	AT, %hi(cpu_mask_nr_tbl)
-		daddiu	t1, t1, %higher(cpu_mask_nr_tbl)
-		daddiu	AT, AT, %lo(cpu_mask_nr_tbl)
-		dsll	t1, 32
-		daddu	t1, t1, AT
-		.set	pop
+#else
+#error GCC `-msym32' option required for 64-bit DECstation builds
 #endif
 1:		lw	t2,(t1)
 		nop
@@ -214,23 +203,12 @@
 		 * Find irq with highest priority
 		 */
 		# open coded PTR_LA t1,asic_mask_nr_tbl
-#if (_MIPS_SZPTR == 32)
+#if defined(CONFIG_32BIT) || defined(KBUILD_64BIT_SYM32)
 		# open coded la t1, asic_mask_nr_tbl
 		lui	t1, %hi(asic_mask_nr_tbl)
 		addiu	t1, %lo(asic_mask_nr_tbl)
-
-#endif
-#if (_MIPS_SZPTR == 64)
-		# open coded dla t1, asic_mask_nr_tbl
-		.set	push
-		.set	noat
-		lui	t1, %highest(asic_mask_nr_tbl)
-		lui	AT, %hi(asic_mask_nr_tbl)
-		daddiu	t1, t1, %higher(asic_mask_nr_tbl)
-		daddiu	AT, AT, %lo(asic_mask_nr_tbl)
-		dsll	t1, 32
-		daddu	t1, t1, AT
-		.set	pop
+#else
+#error GCC `-msym32' option required for 64-bit DECstation builds
 #endif
 2:		lw	t2,(t1)
 		nop
diff --git a/arch/mips/generic/Kconfig b/arch/mips/generic/Kconfig
index a606b3f9196c..51ffbbaddee2 100644
--- a/arch/mips/generic/Kconfig
+++ b/arch/mips/generic/Kconfig
@@ -9,11 +9,31 @@ config LEGACY_BOARDS
 	  kernel is booted without being provided with an FDT via the UHI
 	  boot protocol.
 
+config YAMON_DT_SHIM
+	bool
+	help
+	  Select this from your board if the board uses the YAMON bootloader
+	  and you wish to include code which helps translate various
+	  YAMON-provided environment variables into a device tree properties.
+
+comment "Legacy (non-UHI/non-FIT) Boards"
+
 config LEGACY_BOARD_SEAD3
 	bool "Support MIPS SEAD-3 boards"
 	select LEGACY_BOARDS
+	select YAMON_DT_SHIM
 	help
 	  Enable this to include support for booting on MIPS SEAD-3 FPGA-based
 	  development boards, which boot using a legacy boot protocol.
 
+comment "FIT/UHI Boards"
+
+config FIT_IMAGE_FDT_BOSTON
+	bool "Include FDT for MIPS Boston boards"
+	help
+	  Enable this to include the FDT for the MIPS Boston development board
+	  from Imagination Technologies in the FIT kernel image. You should
+	  enable this if you wish to boot on a MIPS Boston board, as it is
+	  expected by the bootloader.
+
 endif
diff --git a/arch/mips/generic/Makefile b/arch/mips/generic/Makefile
index acb9b6d62b16..56b3ea565ed9 100644
--- a/arch/mips/generic/Makefile
+++ b/arch/mips/generic/Makefile
@@ -12,5 +12,6 @@ obj-y += init.o
 obj-y += irq.o
 obj-y += proc.o
 
+obj-$(CONFIG_YAMON_DT_SHIM)		+= yamon-dt.o
 obj-$(CONFIG_LEGACY_BOARD_SEAD3)	+= board-sead3.o
 obj-$(CONFIG_KEXEC)			+= kexec.o
diff --git a/arch/mips/generic/board-sead3.c b/arch/mips/generic/board-sead3.c
index f4ae0584a33b..f109a6b9fdd0 100644
--- a/arch/mips/generic/board-sead3.c
+++ b/arch/mips/generic/board-sead3.c
@@ -13,10 +13,12 @@
 #include <linux/errno.h>
 #include <linux/libfdt.h>
 #include <linux/printk.h>
+#include <linux/sizes.h>
 
 #include <asm/fw/fw.h>
 #include <asm/io.h>
 #include <asm/machine.h>
+#include <asm/yamon-dt.h>
 
 #define SEAD_CONFIG			CKSEG1ADDR(0x1b100110)
 #define SEAD_CONFIG_GIC_PRESENT		BIT(1)
@@ -25,6 +27,15 @@
 #define MIPS_REVISION_MACHINE		(0xf << 4)
 #define MIPS_REVISION_MACHINE_SEAD3	(0x4 << 4)
 
+/*
+ * Maximum 384MB RAM at physical address 0, preceding any I/O.
+ */
+static struct yamon_mem_region mem_regions[] __initdata = {
+	/* start	size */
+	{ 0,		SZ_256M + SZ_128M },
+	{}
+};
+
 static __init bool sead3_detect(void)
 {
 	uint32_t rev;
@@ -33,96 +44,9 @@ static __init bool sead3_detect(void)
 	return (rev & MIPS_REVISION_MACHINE) == MIPS_REVISION_MACHINE_SEAD3;
 }
 
-static __init int append_cmdline(void *fdt)
-{
-	int err, chosen_off;
-
-	/* find or add chosen node */
-	chosen_off = fdt_path_offset(fdt, "/chosen");
-	if (chosen_off == -FDT_ERR_NOTFOUND)
-		chosen_off = fdt_path_offset(fdt, "/chosen@0");
-	if (chosen_off == -FDT_ERR_NOTFOUND)
-		chosen_off = fdt_add_subnode(fdt, 0, "chosen");
-	if (chosen_off < 0) {
-		pr_err("Unable to find or add DT chosen node: %d\n",
-		       chosen_off);
-		return chosen_off;
-	}
-
-	err = fdt_setprop_string(fdt, chosen_off, "bootargs", fw_getcmdline());
-	if (err) {
-		pr_err("Unable to set bootargs property: %d\n", err);
-		return err;
-	}
-
-	return 0;
-}
-
 static __init int append_memory(void *fdt)
 {
-	unsigned long phys_memsize, memsize;
-	__be32 mem_array[2];
-	int err, mem_off;
-	char *var;
-
-	/* find memory size from the bootloader environment */
-	var = fw_getenv("memsize");
-	if (var) {
-		err = kstrtoul(var, 0, &phys_memsize);
-		if (err) {
-			pr_err("Failed to read memsize env variable '%s'\n",
-			       var);
-			return -EINVAL;
-		}
-	} else {
-		pr_warn("The bootloader didn't provide memsize: defaulting to 32MB\n");
-		phys_memsize = 32 << 20;
-	}
-
-	/* default to using all available RAM */
-	memsize = phys_memsize;
-
-	/* allow the user to override the usable memory */
-	var = strstr(arcs_cmdline, "memsize=");
-	if (var)
-		memsize = memparse(var + strlen("memsize="), NULL);
-
-	/* if the user says there's more RAM than we thought, believe them */
-	phys_memsize = max_t(unsigned long, phys_memsize, memsize);
-
-	/* find or add a memory node */
-	mem_off = fdt_path_offset(fdt, "/memory");
-	if (mem_off == -FDT_ERR_NOTFOUND)
-		mem_off = fdt_add_subnode(fdt, 0, "memory");
-	if (mem_off < 0) {
-		pr_err("Unable to find or add memory DT node: %d\n", mem_off);
-		return mem_off;
-	}
-
-	err = fdt_setprop_string(fdt, mem_off, "device_type", "memory");
-	if (err) {
-		pr_err("Unable to set memory node device_type: %d\n", err);
-		return err;
-	}
-
-	mem_array[0] = 0;
-	mem_array[1] = cpu_to_be32(phys_memsize);
-	err = fdt_setprop(fdt, mem_off, "reg", mem_array, sizeof(mem_array));
-	if (err) {
-		pr_err("Unable to set memory regs property: %d\n", err);
-		return err;
-	}
-
-	mem_array[0] = 0;
-	mem_array[1] = cpu_to_be32(memsize);
-	err = fdt_setprop(fdt, mem_off, "linux,usable-memory",
-			  mem_array, sizeof(mem_array));
-	if (err) {
-		pr_err("Unable to set linux,usable-memory property: %d\n", err);
-		return err;
-	}
-
-	return 0;
+	return yamon_dt_append_memory(fdt, mem_regions);
 }
 
 static __init int remove_gic(void *fdt)
@@ -163,14 +87,16 @@ static __init int remove_gic(void *fdt)
 		return -EINVAL;
 	}
 
-	err = fdt_setprop_u32(fdt, 0, "interrupt-parent", cpu_phandle);
-	if (err) {
-		pr_err("unable to set root interrupt-parent: %d\n", err);
-		return err;
-	}
-
 	uart_off = fdt_node_offset_by_compatible(fdt, -1, "ns16550a");
 	while (uart_off >= 0) {
+		err = fdt_setprop_u32(fdt, uart_off, "interrupt-parent",
+				      cpu_phandle);
+		if (err) {
+			pr_warn("unable to set UART interrupt-parent: %d\n",
+				err);
+			return err;
+		}
+
 		err = fdt_setprop_u32(fdt, uart_off, "interrupts",
 				      cpu_uart_int);
 		if (err) {
@@ -193,6 +119,12 @@ static __init int remove_gic(void *fdt)
 		return eth_off;
 	}
 
+	err = fdt_setprop_u32(fdt, eth_off, "interrupt-parent", cpu_phandle);
+	if (err) {
+		pr_err("unable to set ethernet interrupt-parent: %d\n", err);
+		return err;
+	}
+
 	err = fdt_setprop_u32(fdt, eth_off, "interrupts", cpu_eth_int);
 	if (err) {
 		pr_err("unable to set ethernet interrupts property: %d\n", err);
@@ -205,94 +137,29 @@ static __init int remove_gic(void *fdt)
 		return ehci_off;
 	}
 
-	err = fdt_setprop_u32(fdt, ehci_off, "interrupts", cpu_ehci_int);
+	err = fdt_setprop_u32(fdt, ehci_off, "interrupt-parent", cpu_phandle);
 	if (err) {
-		pr_err("unable to set EHCI interrupts property: %d\n", err);
+		pr_err("unable to set EHCI interrupt-parent: %d\n", err);
 		return err;
 	}
 
-	return 0;
-}
-
-static __init int serial_config(void *fdt)
-{
-	const char *yamontty, *mode_var;
-	char mode_var_name[9], path[18], parity;
-	unsigned int uart, baud, stop_bits;
-	bool hw_flow;
-	int chosen_off, err;
-
-	yamontty = fw_getenv("yamontty");
-	if (!yamontty || !strcmp(yamontty, "tty0")) {
-		uart = 0;
-	} else if (!strcmp(yamontty, "tty1")) {
-		uart = 1;
-	} else {
-		pr_warn("yamontty environment variable '%s' invalid\n",
-			yamontty);
-		uart = 0;
-	}
-
-	baud = stop_bits = 0;
-	parity = 0;
-	hw_flow = false;
-
-	snprintf(mode_var_name, sizeof(mode_var_name), "modetty%u", uart);
-	mode_var = fw_getenv(mode_var_name);
-	if (mode_var) {
-		while (mode_var[0] >= '0' && mode_var[0] <= '9') {
-			baud *= 10;
-			baud += mode_var[0] - '0';
-			mode_var++;
-		}
-		if (mode_var[0] == ',')
-			mode_var++;
-		if (mode_var[0])
-			parity = mode_var[0];
-		if (mode_var[0] == ',')
-			mode_var++;
-		if (mode_var[0])
-			stop_bits = mode_var[0] - '0';
-		if (mode_var[0] == ',')
-			mode_var++;
-		if (!strcmp(mode_var, "hw"))
-			hw_flow = true;
-	}
-
-	if (!baud)
-		baud = 38400;
-
-	if (parity != 'e' && parity != 'n' && parity != 'o')
-		parity = 'n';
-
-	if (stop_bits != 7 && stop_bits != 8)
-		stop_bits = 8;
-
-	WARN_ON(snprintf(path, sizeof(path), "uart%u:%u%c%u%s",
-			 uart, baud, parity, stop_bits,
-			 hw_flow ? "r" : "") >= sizeof(path));
-
-	/* find or add chosen node */
-	chosen_off = fdt_path_offset(fdt, "/chosen");
-	if (chosen_off == -FDT_ERR_NOTFOUND)
-		chosen_off = fdt_path_offset(fdt, "/chosen@0");
-	if (chosen_off == -FDT_ERR_NOTFOUND)
-		chosen_off = fdt_add_subnode(fdt, 0, "chosen");
-	if (chosen_off < 0) {
-		pr_err("Unable to find or add DT chosen node: %d\n",
-		       chosen_off);
-		return chosen_off;
-	}
-
-	err = fdt_setprop_string(fdt, chosen_off, "stdout-path", path);
+	err = fdt_setprop_u32(fdt, ehci_off, "interrupts", cpu_ehci_int);
 	if (err) {
-		pr_err("Unable to set stdout-path property: %d\n", err);
+		pr_err("unable to set EHCI interrupts property: %d\n", err);
 		return err;
 	}
 
 	return 0;
 }
 
+static const struct mips_fdt_fixup sead3_fdt_fixups[] __initconst = {
+	{ yamon_dt_append_cmdline, "append command line" },
+	{ append_memory, "append memory" },
+	{ remove_gic, "remove GIC when not present" },
+	{ yamon_dt_serial_config, "append serial configuration" },
+	{ },
+};
+
 static __init const void *sead3_fixup_fdt(const void *fdt,
 					  const void *match_data)
 {
@@ -307,29 +174,10 @@ static __init const void *sead3_fixup_fdt(const void *fdt,
 
 	fw_init_cmdline();
 
-	err = fdt_open_into(fdt, fdt_buf, sizeof(fdt_buf));
-	if (err)
-		panic("Unable to open FDT: %d", err);
-
-	err = append_cmdline(fdt_buf);
-	if (err)
-		panic("Unable to patch FDT: %d", err);
-
-	err = append_memory(fdt_buf);
-	if (err)
-		panic("Unable to patch FDT: %d", err);
-
-	err = remove_gic(fdt_buf);
-	if (err)
-		panic("Unable to patch FDT: %d", err);
-
-	err = serial_config(fdt_buf);
-	if (err)
-		panic("Unable to patch FDT: %d", err);
-
-	err = fdt_pack(fdt_buf);
+	err = apply_mips_fdt_fixups(fdt_buf, sizeof(fdt_buf),
+				    fdt, sead3_fdt_fixups);
 	if (err)
-		panic("Unable to pack FDT: %d\n", err);
+		panic("Unable to fixup FDT: %d", err);
 
 	return fdt_buf;
 }
diff --git a/arch/mips/generic/init.c b/arch/mips/generic/init.c
index 1231b5a17b37..3f32b376d30e 100644
--- a/arch/mips/generic/init.c
+++ b/arch/mips/generic/init.c
@@ -122,6 +122,33 @@ void __init device_tree_init(void)
 		err = register_up_smp_ops();
 }
 
+int __init apply_mips_fdt_fixups(void *fdt_out, size_t fdt_out_size,
+				 const void *fdt_in,
+				 const struct mips_fdt_fixup *fixups)
+{
+	int err;
+
+	err = fdt_open_into(fdt_in, fdt_out, fdt_out_size);
+	if (err) {
+		pr_err("Failed to open FDT\n");
+		return err;
+	}
+
+	for (; fixups->apply; fixups++) {
+		err = fixups->apply(fdt_out);
+		if (err) {
+			pr_err("Failed to apply FDT fixup \"%s\"\n",
+			       fixups->description);
+			return err;
+		}
+	}
+
+	err = fdt_pack(fdt_out);
+	if (err)
+		pr_err("Failed to pack FDT\n");
+	return err;
+}
+
 void __init plat_time_init(void)
 {
 	struct device_node *np;
diff --git a/arch/mips/generic/vmlinux.its.S b/arch/mips/generic/vmlinux.its.S
index f67fbf1c8541..3390e2f80b80 100644
--- a/arch/mips/generic/vmlinux.its.S
+++ b/arch/mips/generic/vmlinux.its.S
@@ -29,3 +29,28 @@
 		};
 	};
 };
+
+#ifdef CONFIG_FIT_IMAGE_FDT_BOSTON
+/ {
+	images {
+		fdt@boston {
+			description = "img,boston Device Tree";
+			data = /incbin/("boot/dts/img/boston.dtb");
+			type = "flat_dt";
+			arch = "mips";
+			compression = "none";
+			hash@0 {
+				algo = "sha1";
+			};
+		};
+	};
+
+	configurations {
+		conf@boston {
+			description = "Boston Linux kernel";
+			kernel = "kernel@0";
+			fdt = "fdt@boston";
+		};
+	};
+};
+#endif /* CONFIG_FIT_IMAGE_FDT_BOSTON */
diff --git a/arch/mips/generic/yamon-dt.c b/arch/mips/generic/yamon-dt.c
new file mode 100644
index 000000000000..6077bca9b364
--- /dev/null
+++ b/arch/mips/generic/yamon-dt.c
@@ -0,0 +1,240 @@
+/*
+ * Copyright (C) 2016 Imagination Technologies
+ * Author: Paul Burton <paul.burton@imgtec.com>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation;  either version 2 of the  License, or (at your
+ * option) any later version.
+ */
+
+#define pr_fmt(fmt) "yamon-dt: " fmt
+
+#include <linux/bug.h>
+#include <linux/errno.h>
+#include <linux/kernel.h>
+#include <linux/libfdt.h>
+#include <linux/printk.h>
+
+#include <asm/fw/fw.h>
+#include <asm/yamon-dt.h>
+
+#define MAX_MEM_ARRAY_ENTRIES	2
+
+__init int yamon_dt_append_cmdline(void *fdt)
+{
+	int err, chosen_off;
+
+	/* find or add chosen node */
+	chosen_off = fdt_path_offset(fdt, "/chosen");
+	if (chosen_off == -FDT_ERR_NOTFOUND)
+		chosen_off = fdt_path_offset(fdt, "/chosen@0");
+	if (chosen_off == -FDT_ERR_NOTFOUND)
+		chosen_off = fdt_add_subnode(fdt, 0, "chosen");
+	if (chosen_off < 0) {
+		pr_err("Unable to find or add DT chosen node: %d\n",
+		       chosen_off);
+		return chosen_off;
+	}
+
+	err = fdt_setprop_string(fdt, chosen_off, "bootargs", fw_getcmdline());
+	if (err) {
+		pr_err("Unable to set bootargs property: %d\n", err);
+		return err;
+	}
+
+	return 0;
+}
+
+static unsigned int __init gen_fdt_mem_array(
+					const struct yamon_mem_region *regions,
+					__be32 *mem_array,
+					unsigned int max_entries,
+					unsigned long memsize)
+{
+	const struct yamon_mem_region *mr;
+	unsigned long size;
+	unsigned int entries = 0;
+
+	for (mr = regions; mr->size && memsize; ++mr) {
+		if (entries >= max_entries) {
+			pr_warn("Number of regions exceeds max %u\n",
+				max_entries);
+			break;
+		}
+
+		/* How much of the remaining RAM fits in the next region? */
+		size = min_t(unsigned long, memsize, mr->size);
+		memsize -= size;
+
+		/* Emit a memory region */
+		*(mem_array++) = cpu_to_be32(mr->start);
+		*(mem_array++) = cpu_to_be32(size);
+		++entries;
+
+		/* Discard the next mr->discard bytes */
+		memsize -= min_t(unsigned long, memsize, mr->discard);
+	}
+	return entries;
+}
+
+__init int yamon_dt_append_memory(void *fdt,
+				  const struct yamon_mem_region *regions)
+{
+	unsigned long phys_memsize, memsize;
+	__be32 mem_array[2 * MAX_MEM_ARRAY_ENTRIES];
+	unsigned int mem_entries;
+	int i, err, mem_off;
+	char *var, param_name[10], *var_names[] = {
+		"ememsize", "memsize",
+	};
+
+	/* find memory size from the bootloader environment */
+	for (i = 0; i < ARRAY_SIZE(var_names); i++) {
+		var = fw_getenv(var_names[i]);
+		if (!var)
+			continue;
+
+		err = kstrtoul(var, 0, &phys_memsize);
+		if (!err)
+			break;
+
+		pr_warn("Failed to read the '%s' env variable '%s'\n",
+			var_names[i], var);
+	}
+
+	if (!phys_memsize) {
+		pr_warn("The bootloader didn't provide memsize: defaulting to 32MB\n");
+		phys_memsize = 32 << 20;
+	}
+
+	/* default to using all available RAM */
+	memsize = phys_memsize;
+
+	/* allow the user to override the usable memory */
+	for (i = 0; i < ARRAY_SIZE(var_names); i++) {
+		snprintf(param_name, sizeof(param_name), "%s=", var_names[i]);
+		var = strstr(arcs_cmdline, param_name);
+		if (!var)
+			continue;
+
+		memsize = memparse(var + strlen(param_name), NULL);
+	}
+
+	/* if the user says there's more RAM than we thought, believe them */
+	phys_memsize = max_t(unsigned long, phys_memsize, memsize);
+
+	/* find or add a memory node */
+	mem_off = fdt_path_offset(fdt, "/memory");
+	if (mem_off == -FDT_ERR_NOTFOUND)
+		mem_off = fdt_add_subnode(fdt, 0, "memory");
+	if (mem_off < 0) {
+		pr_err("Unable to find or add memory DT node: %d\n", mem_off);
+		return mem_off;
+	}
+
+	err = fdt_setprop_string(fdt, mem_off, "device_type", "memory");
+	if (err) {
+		pr_err("Unable to set memory node device_type: %d\n", err);
+		return err;
+	}
+
+	mem_entries = gen_fdt_mem_array(regions, mem_array,
+					MAX_MEM_ARRAY_ENTRIES, phys_memsize);
+	err = fdt_setprop(fdt, mem_off, "reg",
+			  mem_array, mem_entries * 2 * sizeof(mem_array[0]));
+	if (err) {
+		pr_err("Unable to set memory regs property: %d\n", err);
+		return err;
+	}
+
+	mem_entries = gen_fdt_mem_array(regions, mem_array,
+					MAX_MEM_ARRAY_ENTRIES, memsize);
+	err = fdt_setprop(fdt, mem_off, "linux,usable-memory",
+			  mem_array, mem_entries * 2 * sizeof(mem_array[0]));
+	if (err) {
+		pr_err("Unable to set linux,usable-memory property: %d\n", err);
+		return err;
+	}
+
+	return 0;
+}
+
+__init int yamon_dt_serial_config(void *fdt)
+{
+	const char *yamontty, *mode_var;
+	char mode_var_name[9], path[20], parity;
+	unsigned int uart, baud, stop_bits;
+	bool hw_flow;
+	int chosen_off, err;
+
+	yamontty = fw_getenv("yamontty");
+	if (!yamontty || !strcmp(yamontty, "tty0")) {
+		uart = 0;
+	} else if (!strcmp(yamontty, "tty1")) {
+		uart = 1;
+	} else {
+		pr_warn("yamontty environment variable '%s' invalid\n",
+			yamontty);
+		uart = 0;
+	}
+
+	baud = stop_bits = 0;
+	parity = 0;
+	hw_flow = false;
+
+	snprintf(mode_var_name, sizeof(mode_var_name), "modetty%u", uart);
+	mode_var = fw_getenv(mode_var_name);
+	if (mode_var) {
+		while (mode_var[0] >= '0' && mode_var[0] <= '9') {
+			baud *= 10;
+			baud += mode_var[0] - '0';
+			mode_var++;
+		}
+		if (mode_var[0] == ',')
+			mode_var++;
+		if (mode_var[0])
+			parity = mode_var[0];
+		if (mode_var[0] == ',')
+			mode_var++;
+		if (mode_var[0])
+			stop_bits = mode_var[0] - '0';
+		if (mode_var[0] == ',')
+			mode_var++;
+		if (!strcmp(mode_var, "hw"))
+			hw_flow = true;
+	}
+
+	if (!baud)
+		baud = 38400;
+
+	if (parity != 'e' && parity != 'n' && parity != 'o')
+		parity = 'n';
+
+	if (stop_bits != 7 && stop_bits != 8)
+		stop_bits = 8;
+
+	WARN_ON(snprintf(path, sizeof(path), "serial%u:%u%c%u%s",
+			 uart, baud, parity, stop_bits,
+			 hw_flow ? "r" : "") >= sizeof(path));
+
+	/* find or add chosen node */
+	chosen_off = fdt_path_offset(fdt, "/chosen");
+	if (chosen_off == -FDT_ERR_NOTFOUND)
+		chosen_off = fdt_path_offset(fdt, "/chosen@0");
+	if (chosen_off == -FDT_ERR_NOTFOUND)
+		chosen_off = fdt_add_subnode(fdt, 0, "chosen");
+	if (chosen_off < 0) {
+		pr_err("Unable to find or add DT chosen node: %d\n",
+		       chosen_off);
+		return chosen_off;
+	}
+
+	err = fdt_setprop_string(fdt, chosen_off, "stdout-path", path);
+	if (err) {
+		pr_err("Unable to set stdout-path property: %d\n", err);
+		return err;
+	}
+
+	return 0;
+}
diff --git a/arch/mips/include/asm/Kbuild b/arch/mips/include/asm/Kbuild
index 2535c7b4c482..7c8aab23bce8 100644
--- a/arch/mips/include/asm/Kbuild
+++ b/arch/mips/include/asm/Kbuild
@@ -12,6 +12,8 @@ generic-y += mm-arch-hooks.h
 generic-y += parport.h
 generic-y += percpu.h
 generic-y += preempt.h
+generic-y += qrwlock.h
+generic-y += qspinlock.h
 generic-y += sections.h
 generic-y += segment.h
 generic-y += serial.h
diff --git a/arch/mips/include/asm/branch.h b/arch/mips/include/asm/branch.h
index de781cf54bc7..da80878f2c0d 100644
--- a/arch/mips/include/asm/branch.h
+++ b/arch/mips/include/asm/branch.h
@@ -74,10 +74,7 @@ static inline int compute_return_epc(struct pt_regs *regs)
 			return __microMIPS_compute_return_epc(regs);
 		if (cpu_has_mips16)
 			return __MIPS16e_compute_return_epc(regs);
-		return regs->cp0_epc;
-	}
-
-	if (!delay_slot(regs)) {
+	} else if (!delay_slot(regs)) {
 		regs->cp0_epc += 4;
 		return 0;
 	}
diff --git a/arch/mips/include/asm/cache.h b/arch/mips/include/asm/cache.h
index fc67947ed658..8b14c2706aa5 100644
--- a/arch/mips/include/asm/cache.h
+++ b/arch/mips/include/asm/cache.h
@@ -9,6 +9,8 @@
 #ifndef _ASM_CACHE_H
 #define _ASM_CACHE_H
 
+#include <kmalloc.h>
+
 #define L1_CACHE_SHIFT		CONFIG_MIPS_L1_CACHE_SHIFT
 #define L1_CACHE_BYTES		(1 << L1_CACHE_SHIFT)
 
diff --git a/arch/mips/include/asm/cmpxchg.h b/arch/mips/include/asm/cmpxchg.h
index b71ab4a5fd50..903f3bf48419 100644
--- a/arch/mips/include/asm/cmpxchg.h
+++ b/arch/mips/include/asm/cmpxchg.h
@@ -13,153 +13,107 @@
 #include <asm/compiler.h>
 #include <asm/war.h>
 
-static inline unsigned long __xchg_u32(volatile int * m, unsigned int val)
-{
-	__u32 retval;
-
-	smp_mb__before_llsc();
-
-	if (kernel_uses_llsc && R10000_LLSC_WAR) {
-		unsigned long dummy;
-
-		__asm__ __volatile__(
-		"	.set	arch=r4000				\n"
-		"1:	ll	%0, %3			# xchg_u32	\n"
-		"	.set	mips0					\n"
-		"	move	%2, %z4					\n"
-		"	.set	arch=r4000				\n"
-		"	sc	%2, %1					\n"
-		"	beqzl	%2, 1b					\n"
-		"	.set	mips0					\n"
-		: "=&r" (retval), "=" GCC_OFF_SMALL_ASM() (*m), "=&r" (dummy)
-		: GCC_OFF_SMALL_ASM() (*m), "Jr" (val)
-		: "memory");
-	} else if (kernel_uses_llsc) {
-		unsigned long dummy;
-
-		do {
-			__asm__ __volatile__(
-			"	.set	"MIPS_ISA_ARCH_LEVEL"		\n"
-			"	ll	%0, %3		# xchg_u32	\n"
-			"	.set	mips0				\n"
-			"	move	%2, %z4				\n"
-			"	.set	"MIPS_ISA_ARCH_LEVEL"		\n"
-			"	sc	%2, %1				\n"
-			"	.set	mips0				\n"
-			: "=&r" (retval), "=" GCC_OFF_SMALL_ASM() (*m),
-			  "=&r" (dummy)
-			: GCC_OFF_SMALL_ASM() (*m), "Jr" (val)
-			: "memory");
-		} while (unlikely(!dummy));
-	} else {
-		unsigned long flags;
-
-		raw_local_irq_save(flags);
-		retval = *m;
-		*m = val;
-		raw_local_irq_restore(flags);	/* implies memory barrier  */
-	}
-
-	smp_llsc_mb();
-
-	return retval;
-}
+/*
+ * Using a branch-likely instruction to check the result of an sc instruction
+ * works around a bug present in R10000 CPUs prior to revision 3.0 that could
+ * cause ll-sc sequences to execute non-atomically.
+ */
+#if R10000_LLSC_WAR
+# define __scbeqz "beqzl"
+#else
+# define __scbeqz "beqz"
+#endif
 
-#ifdef CONFIG_64BIT
-static inline __u64 __xchg_u64(volatile __u64 * m, __u64 val)
-{
-	__u64 retval;
-
-	smp_mb__before_llsc();
-
-	if (kernel_uses_llsc && R10000_LLSC_WAR) {
-		unsigned long dummy;
-
-		__asm__ __volatile__(
-		"	.set	arch=r4000				\n"
-		"1:	lld	%0, %3			# xchg_u64	\n"
-		"	move	%2, %z4					\n"
-		"	scd	%2, %1					\n"
-		"	beqzl	%2, 1b					\n"
-		"	.set	mips0					\n"
-		: "=&r" (retval), "=" GCC_OFF_SMALL_ASM() (*m), "=&r" (dummy)
-		: GCC_OFF_SMALL_ASM() (*m), "Jr" (val)
-		: "memory");
-	} else if (kernel_uses_llsc) {
-		unsigned long dummy;
-
-		do {
-			__asm__ __volatile__(
-			"	.set	"MIPS_ISA_ARCH_LEVEL"		\n"
-			"	lld	%0, %3		# xchg_u64	\n"
-			"	move	%2, %z4				\n"
-			"	scd	%2, %1				\n"
-			"	.set	mips0				\n"
-			: "=&r" (retval), "=" GCC_OFF_SMALL_ASM() (*m),
-			  "=&r" (dummy)
-			: GCC_OFF_SMALL_ASM() (*m), "Jr" (val)
-			: "memory");
-		} while (unlikely(!dummy));
-	} else {
-		unsigned long flags;
-
-		raw_local_irq_save(flags);
-		retval = *m;
-		*m = val;
-		raw_local_irq_restore(flags);	/* implies memory barrier  */
-	}
+/*
+ * These functions doesn't exist, so if they are called you'll either:
+ *
+ * - Get an error at compile-time due to __compiletime_error, if supported by
+ *   your compiler.
+ *
+ * or:
+ *
+ * - Get an error at link-time due to the call to the missing function.
+ */
+extern unsigned long __cmpxchg_called_with_bad_pointer(void)
+	__compiletime_error("Bad argument size for cmpxchg");
+extern unsigned long __xchg_called_with_bad_pointer(void)
+	__compiletime_error("Bad argument size for xchg");
 
-	smp_llsc_mb();
+#define __xchg_asm(ld, st, m, val)					\
+({									\
+	__typeof(*(m)) __ret;						\
+									\
+	if (kernel_uses_llsc) {						\
+		__asm__ __volatile__(					\
+		"	.set	push				\n"	\
+		"	.set	noat				\n"	\
+		"	.set	" MIPS_ISA_ARCH_LEVEL "		\n"	\
+		"1:	" ld "	%0, %2		# __xchg_asm	\n"	\
+		"	.set	mips0				\n"	\
+		"	move	$1, %z3				\n"	\
+		"	.set	" MIPS_ISA_ARCH_LEVEL "		\n"	\
+		"	" st "	$1, %1				\n"	\
+		"\t" __scbeqz "	$1, 1b				\n"	\
+		"	.set	pop				\n"	\
+		: "=&r" (__ret), "=" GCC_OFF_SMALL_ASM() (*m)		\
+		: GCC_OFF_SMALL_ASM() (*m), "Jr" (val)			\
+		: "memory");						\
+	} else {							\
+		unsigned long __flags;					\
+									\
+		raw_local_irq_save(__flags);				\
+		__ret = *m;						\
+		*m = val;						\
+		raw_local_irq_restore(__flags);				\
+	}								\
+									\
+	__ret;								\
+})
 
-	return retval;
-}
-#else
-extern __u64 __xchg_u64_unsupported_on_32bit_kernels(volatile __u64 * m, __u64 val);
-#define __xchg_u64 __xchg_u64_unsupported_on_32bit_kernels
-#endif
+extern unsigned long __xchg_small(volatile void *ptr, unsigned long val,
+				  unsigned int size);
 
-static inline unsigned long __xchg(unsigned long x, volatile void * ptr, int size)
+static inline unsigned long __xchg(volatile void *ptr, unsigned long x,
+				   int size)
 {
 	switch (size) {
+	case 1:
+	case 2:
+		return __xchg_small(ptr, x, size);
+
 	case 4:
-		return __xchg_u32(ptr, x);
+		return __xchg_asm("ll", "sc", (volatile u32 *)ptr, x);
+
 	case 8:
-		return __xchg_u64(ptr, x);
-	}
+		if (!IS_ENABLED(CONFIG_64BIT))
+			return __xchg_called_with_bad_pointer();
+
+		return __xchg_asm("lld", "scd", (volatile u64 *)ptr, x);
 
-	return x;
+	default:
+		return __xchg_called_with_bad_pointer();
+	}
 }
 
 #define xchg(ptr, x)							\
 ({									\
-	BUILD_BUG_ON(sizeof(*(ptr)) & ~0xc);				\
+	__typeof__(*(ptr)) __res;					\
 									\
-	((__typeof__(*(ptr)))						\
-		__xchg((unsigned long)(x), (ptr), sizeof(*(ptr))));	\
+	smp_mb__before_llsc();						\
+									\
+	__res = (__typeof__(*(ptr)))					\
+		__xchg((ptr), (unsigned long)(x), sizeof(*(ptr)));	\
+									\
+	smp_llsc_mb();							\
+									\
+	__res;								\
 })
 
 #define __cmpxchg_asm(ld, st, m, old, new)				\
 ({									\
 	__typeof(*(m)) __ret;						\
 									\
-	if (kernel_uses_llsc && R10000_LLSC_WAR) {			\
-		__asm__ __volatile__(					\
-		"	.set	push				\n"	\
-		"	.set	noat				\n"	\
-		"	.set	arch=r4000			\n"	\
-		"1:	" ld "	%0, %2		# __cmpxchg_asm \n"	\
-		"	bne	%0, %z3, 2f			\n"	\
-		"	.set	mips0				\n"	\
-		"	move	$1, %z4				\n"	\
-		"	.set	arch=r4000			\n"	\
-		"	" st "	$1, %1				\n"	\
-		"	beqzl	$1, 1b				\n"	\
-		"2:						\n"	\
-		"	.set	pop				\n"	\
-		: "=&r" (__ret), "=" GCC_OFF_SMALL_ASM() (*m)		\
-		: GCC_OFF_SMALL_ASM() (*m), "Jr" (old), "Jr" (new)		\
-		: "memory");						\
-	} else if (kernel_uses_llsc) {					\
+	if (kernel_uses_llsc) {						\
 		__asm__ __volatile__(					\
 		"	.set	push				\n"	\
 		"	.set	noat				\n"	\
@@ -170,7 +124,7 @@ static inline unsigned long __xchg(unsigned long x, volatile void * ptr, int siz
 		"	move	$1, %z4				\n"	\
 		"	.set	"MIPS_ISA_ARCH_LEVEL"		\n"	\
 		"	" st "	$1, %1				\n"	\
-		"	beqz	$1, 1b				\n"	\
+		"\t" __scbeqz "	$1, 1b				\n"	\
 		"	.set	pop				\n"	\
 		"2:						\n"	\
 		: "=&r" (__ret), "=" GCC_OFF_SMALL_ASM() (*m)		\
@@ -189,44 +143,50 @@ static inline unsigned long __xchg(unsigned long x, volatile void * ptr, int siz
 	__ret;								\
 })
 
-/*
- * This function doesn't exist, so you'll get a linker error
- * if something tries to do an invalid cmpxchg().
- */
-extern void __cmpxchg_called_with_bad_pointer(void);
+extern unsigned long __cmpxchg_small(volatile void *ptr, unsigned long old,
+				     unsigned long new, unsigned int size);
+
+static inline unsigned long __cmpxchg(volatile void *ptr, unsigned long old,
+				      unsigned long new, unsigned int size)
+{
+	switch (size) {
+	case 1:
+	case 2:
+		return __cmpxchg_small(ptr, old, new, size);
+
+	case 4:
+		return __cmpxchg_asm("ll", "sc", (volatile u32 *)ptr, old, new);
+
+	case 8:
+		/* lld/scd are only available for MIPS64 */
+		if (!IS_ENABLED(CONFIG_64BIT))
+			return __cmpxchg_called_with_bad_pointer();
+
+		return __cmpxchg_asm("lld", "scd", (volatile u64 *)ptr, old, new);
 
-#define __cmpxchg(ptr, old, new, pre_barrier, post_barrier)		\
+	default:
+		return __cmpxchg_called_with_bad_pointer();
+	}
+}
+
+#define cmpxchg_local(ptr, old, new)					\
+	((__typeof__(*(ptr)))						\
+		__cmpxchg((ptr),					\
+			  (unsigned long)(__typeof__(*(ptr)))(old),	\
+			  (unsigned long)(__typeof__(*(ptr)))(new),	\
+			  sizeof(*(ptr))))
+
+#define cmpxchg(ptr, old, new)						\
 ({									\
-	__typeof__(ptr) __ptr = (ptr);					\
-	__typeof__(*(ptr)) __old = (old);				\
-	__typeof__(*(ptr)) __new = (new);				\
-	__typeof__(*(ptr)) __res = 0;					\
+	__typeof__(*(ptr)) __res;					\
 									\
-	pre_barrier;							\
-									\
-	switch (sizeof(*(__ptr))) {					\
-	case 4:								\
-		__res = __cmpxchg_asm("ll", "sc", __ptr, __old, __new); \
-		break;							\
-	case 8:								\
-		if (sizeof(long) == 8) {				\
-			__res = __cmpxchg_asm("lld", "scd", __ptr,	\
-					   __old, __new);		\
-			break;						\
-		}							\
-	default:							\
-		__cmpxchg_called_with_bad_pointer();			\
-		break;							\
-	}								\
-									\
-	post_barrier;							\
+	smp_mb__before_llsc();						\
+	__res = cmpxchg_local((ptr), (old), (new));			\
+	smp_llsc_mb();							\
 									\
 	__res;								\
 })
 
-#define cmpxchg(ptr, old, new)		__cmpxchg(ptr, old, new, smp_mb__before_llsc(), smp_llsc_mb())
-#define cmpxchg_local(ptr, old, new)	__cmpxchg(ptr, old, new, , )
-
 #ifdef CONFIG_64BIT
 #define cmpxchg64_local(ptr, o, n)					\
   ({									\
@@ -245,4 +205,6 @@ extern void __cmpxchg_called_with_bad_pointer(void);
 #define cmpxchg64(ptr, o, n) cmpxchg64_local((ptr), (o), (n))
 #endif
 
+#undef __scbeqz
+
 #endif /* __ASM_CMPXCHG_H */
diff --git a/arch/mips/include/asm/cpu-features.h b/arch/mips/include/asm/cpu-features.h
index 494d38274142..721b698bfe3c 100644
--- a/arch/mips/include/asm/cpu-features.h
+++ b/arch/mips/include/asm/cpu-features.h
@@ -138,6 +138,9 @@
 #ifndef cpu_has_mips16
 #define cpu_has_mips16		(cpu_data[0].ases & MIPS_ASE_MIPS16)
 #endif
+#ifndef cpu_has_mips16e2
+#define cpu_has_mips16e2	(cpu_data[0].ases & MIPS_ASE_MIPS16E2)
+#endif
 #ifndef cpu_has_mdmx
 #define cpu_has_mdmx		(cpu_data[0].ases & MIPS_ASE_MDMX)
 #endif
@@ -425,6 +428,9 @@
 #ifndef cpu_scache_line_size
 #define cpu_scache_line_size()	cpu_data[0].scache.linesz
 #endif
+#ifndef cpu_tcache_line_size
+#define cpu_tcache_line_size()	cpu_data[0].tcache.linesz
+#endif
 
 #ifndef cpu_hwrena_impl_bits
 #define cpu_hwrena_impl_bits		0
@@ -487,6 +493,47 @@
 # define cpu_has_perf		(cpu_data[0].options & MIPS_CPU_PERF)
 #endif
 
+#if defined(CONFIG_SMP) && defined(__mips_isa_rev) && (__mips_isa_rev >= 6)
+/*
+ * Some systems share FTLB RAMs between threads within a core (siblings in
+ * kernel parlance). This means that FTLB entries may become invalid at almost
+ * any point when an entry is evicted due to a sibling thread writing an entry
+ * to the shared FTLB RAM.
+ *
+ * This is only relevant to SMP systems, and the only systems that exhibit this
+ * property implement MIPSr6 or higher so we constrain support for this to
+ * kernels that will run on such systems.
+ */
+# ifndef cpu_has_shared_ftlb_ram
+#  define cpu_has_shared_ftlb_ram \
+	(current_cpu_data.options & MIPS_CPU_SHARED_FTLB_RAM)
+# endif
+
+/*
+ * Some systems take this a step further & share FTLB entries between siblings.
+ * This is implemented as TLB writes happening as usual, but if an entry
+ * written by a sibling exists in the shared FTLB for a translation which would
+ * otherwise cause a TLB refill exception then the CPU will use the entry
+ * written by its sibling rather than triggering a refill & writing a matching
+ * TLB entry for itself.
+ *
+ * This is naturally only valid if a TLB entry is known to be suitable for use
+ * on all siblings in a CPU, and so it only takes effect when MMIDs are in use
+ * rather than ASIDs or when a TLB entry is marked global.
+ */
+# ifndef cpu_has_shared_ftlb_entries
+#  define cpu_has_shared_ftlb_entries \
+	(current_cpu_data.options & MIPS_CPU_SHARED_FTLB_ENTRIES)
+# endif
+#endif /* SMP && __mips_isa_rev >= 6 */
+
+#ifndef cpu_has_shared_ftlb_ram
+# define cpu_has_shared_ftlb_ram 0
+#endif
+#ifndef cpu_has_shared_ftlb_entries
+# define cpu_has_shared_ftlb_entries 0
+#endif
+
 /*
  * Guest capabilities
  */
diff --git a/arch/mips/include/asm/cpu-type.h b/arch/mips/include/asm/cpu-type.h
index bdd6dc18e65c..175fe565f4e1 100644
--- a/arch/mips/include/asm/cpu-type.h
+++ b/arch/mips/include/asm/cpu-type.h
@@ -84,6 +84,7 @@ static inline int __pure __get_cpu_type(const int cpu_type)
 
 #ifdef CONFIG_SYS_HAS_CPU_MIPS64_R6
 	case CPU_I6400:
+	case CPU_I6500:
 	case CPU_P6600:
 #endif
 
diff --git a/arch/mips/include/asm/cpu.h b/arch/mips/include/asm/cpu.h
index 98f59307e6a3..d0c152b989f8 100644
--- a/arch/mips/include/asm/cpu.h
+++ b/arch/mips/include/asm/cpu.h
@@ -124,6 +124,7 @@
 #define PRID_IMP_P5600		0xa800
 #define PRID_IMP_I6400		0xa900
 #define PRID_IMP_M6250		0xab00
+#define PRID_IMP_I6500		0xb000
 
 /*
  * These are the PRID's for when 23:16 == PRID_COMP_SIBYTE
@@ -247,6 +248,7 @@
 #define PRID_REV_LOONGSON3B_R1	0x0006
 #define PRID_REV_LOONGSON3B_R2	0x0007
 #define PRID_REV_LOONGSON3A_R2	0x0008
+#define PRID_REV_LOONGSON3A_R3	0x0009
 
 /*
  * Older processors used to encode processor version and revision in two
@@ -322,7 +324,7 @@ enum cpu_type_enum {
 	 */
 	CPU_5KC, CPU_5KE, CPU_20KC, CPU_25KF, CPU_SB1, CPU_SB1A, CPU_LOONGSON2,
 	CPU_LOONGSON3, CPU_CAVIUM_OCTEON, CPU_CAVIUM_OCTEON_PLUS,
-	CPU_CAVIUM_OCTEON2, CPU_CAVIUM_OCTEON3, CPU_XLR, CPU_XLP,
+	CPU_CAVIUM_OCTEON2, CPU_CAVIUM_OCTEON3, CPU_XLR, CPU_XLP, CPU_I6500,
 
 	CPU_QEMU_GENERIC,
 
@@ -416,6 +418,10 @@ enum cpu_type_enum {
 #define MIPS_CPU_GUESTID	MBIT_ULL(51)	/* CPU uses VZ ASE GuestID feature */
 #define MIPS_CPU_DRG		MBIT_ULL(52)	/* CPU has VZ Direct Root to Guest (DRG) */
 #define MIPS_CPU_UFR		MBIT_ULL(53)	/* CPU supports User mode FR switching */
+#define MIPS_CPU_SHARED_FTLB_RAM \
+				MBIT_ULL(54)	/* CPU shares FTLB RAM with another */
+#define MIPS_CPU_SHARED_FTLB_ENTRIES \
+				MBIT_ULL(55)	/* CPU shares FTLB entries with another */
 
 /*
  * CPU ASE encodings
@@ -430,5 +436,6 @@ enum cpu_type_enum {
 #define MIPS_ASE_VZ		0x00000080 /* Virtualization ASE */
 #define MIPS_ASE_MSA		0x00000100 /* MIPS SIMD Architecture */
 #define MIPS_ASE_DSP3		0x00000200 /* Signal Processing ASE Rev 3*/
+#define MIPS_ASE_MIPS16E2	0x00000400 /* MIPS16e2 */
 
 #endif /* _ASM_CPU_H */
diff --git a/arch/mips/include/asm/irq.h b/arch/mips/include/asm/irq.h
index ddd1c918103b..c5d351786416 100644
--- a/arch/mips/include/asm/irq.h
+++ b/arch/mips/include/asm/irq.h
@@ -18,7 +18,7 @@
 #include <irq.h>
 
 #define IRQ_STACK_SIZE			THREAD_SIZE
-#define IRQ_STACK_START			(IRQ_STACK_SIZE - sizeof(unsigned long))
+#define IRQ_STACK_START			(IRQ_STACK_SIZE - 16)
 
 extern void *irq_stack[NR_CPUS];
 
diff --git a/arch/mips/include/asm/mach-ath25/cpu-feature-overrides.h b/arch/mips/include/asm/mach-ath25/cpu-feature-overrides.h
index ade0356df257..e6a8108cde4e 100644
--- a/arch/mips/include/asm/mach-ath25/cpu-feature-overrides.h
+++ b/arch/mips/include/asm/mach-ath25/cpu-feature-overrides.h
@@ -40,6 +40,7 @@
 #endif
 
 #define cpu_has_mips16			0
+#define cpu_has_mips16e2		0
 #define cpu_has_mdmx			0
 #define cpu_has_mips3d			0
 #define cpu_has_smartmips		0
diff --git a/arch/mips/include/asm/mach-au1x00/cpu-feature-overrides.h b/arch/mips/include/asm/mach-au1x00/cpu-feature-overrides.h
index c5b6eef0efa7..bace5b9ae4df 100644
--- a/arch/mips/include/asm/mach-au1x00/cpu-feature-overrides.h
+++ b/arch/mips/include/asm/mach-au1x00/cpu-feature-overrides.h
@@ -31,6 +31,7 @@
 #define cpu_has_ejtag			1
 #define cpu_has_llsc			1
 #define cpu_has_mips16			0
+#define cpu_has_mips16e2		0
 #define cpu_has_mdmx			0
 #define cpu_has_mips3d			0
 #define cpu_has_smartmips		0
diff --git a/arch/mips/include/asm/mach-bcm63xx/cpu-feature-overrides.h b/arch/mips/include/asm/mach-bcm63xx/cpu-feature-overrides.h
index bc1167dbd4e3..b56cf10b91d3 100644
--- a/arch/mips/include/asm/mach-bcm63xx/cpu-feature-overrides.h
+++ b/arch/mips/include/asm/mach-bcm63xx/cpu-feature-overrides.h
@@ -19,6 +19,7 @@
 #define cpu_has_ejtag			1
 #define cpu_has_llsc			1
 #define cpu_has_mips16			0
+#define cpu_has_mips16e2		0
 #define cpu_has_mdmx			0
 #define cpu_has_mips3d			0
 #define cpu_has_smartmips		0
diff --git a/arch/mips/include/asm/mach-cobalt/cpu-feature-overrides.h b/arch/mips/include/asm/mach-cobalt/cpu-feature-overrides.h
index 30c5cd9fd973..291fe90aafa5 100644
--- a/arch/mips/include/asm/mach-cobalt/cpu-feature-overrides.h
+++ b/arch/mips/include/asm/mach-cobalt/cpu-feature-overrides.h
@@ -37,6 +37,7 @@
 #endif
 
 #define cpu_has_mips16		0
+#define cpu_has_mips16e2	0
 #define cpu_has_mdmx		0
 #define cpu_has_mips3d		0
 #define cpu_has_smartmips	0
diff --git a/arch/mips/include/asm/mach-dec/cpu-feature-overrides.h b/arch/mips/include/asm/mach-dec/cpu-feature-overrides.h
index 21eae03d752a..2ec10237688c 100644
--- a/arch/mips/include/asm/mach-dec/cpu-feature-overrides.h
+++ b/arch/mips/include/asm/mach-dec/cpu-feature-overrides.h
@@ -27,6 +27,7 @@
 #define cpu_has_mcheck			0
 #define cpu_has_ejtag			0
 #define cpu_has_mips16			0
+#define cpu_has_mips16e2		0
 #define cpu_has_mdmx			0
 #define cpu_has_mips3d			0
 #define cpu_has_smartmips		0
diff --git a/arch/mips/include/asm/mach-generic/mc146818rtc.h b/arch/mips/include/asm/mach-generic/mc146818rtc.h
index 0b9a942f079d..9c72e540ff56 100644
--- a/arch/mips/include/asm/mach-generic/mc146818rtc.h
+++ b/arch/mips/include/asm/mach-generic/mc146818rtc.h
@@ -27,7 +27,7 @@ static inline void CMOS_WRITE(unsigned char data, unsigned long addr)
 	outb_p(data, RTC_PORT(1));
 }
 
-#define RTC_ALWAYS_BCD	1
+#define RTC_ALWAYS_BCD	0
 
 #ifndef mc146818_decode_year
 #define mc146818_decode_year(year) ((year) < 70 ? (year) + 2000 : (year) + 1900)
diff --git a/arch/mips/include/asm/mach-ip22/cpu-feature-overrides.h b/arch/mips/include/asm/mach-ip22/cpu-feature-overrides.h
index 9b19b72dba56..b80d5eafc9db 100644
--- a/arch/mips/include/asm/mach-ip22/cpu-feature-overrides.h
+++ b/arch/mips/include/asm/mach-ip22/cpu-feature-overrides.h
@@ -19,6 +19,7 @@
 #define cpu_has_32fpr		1
 #define cpu_has_counter		1
 #define cpu_has_mips16		0
+#define cpu_has_mips16e2	0
 #define cpu_has_divec		0
 #define cpu_has_cache_cdex_p	1
 #define cpu_has_prefetch	0
diff --git a/arch/mips/include/asm/mach-ip27/cpu-feature-overrides.h b/arch/mips/include/asm/mach-ip27/cpu-feature-overrides.h
index 7449794eade6..136d6d464e32 100644
--- a/arch/mips/include/asm/mach-ip27/cpu-feature-overrides.h
+++ b/arch/mips/include/asm/mach-ip27/cpu-feature-overrides.h
@@ -43,6 +43,7 @@
 #define cpu_has_ejtag			0
 #define cpu_has_llsc			1
 #define cpu_has_mips16			0
+#define cpu_has_mips16e2		0
 #define cpu_has_mdmx			0
 #define cpu_has_mips3d			0
 #define cpu_has_smartmips		0
diff --git a/arch/mips/include/asm/mach-ip28/cpu-feature-overrides.h b/arch/mips/include/asm/mach-ip28/cpu-feature-overrides.h
index 4cec06d133db..ba8b4e30b3e2 100644
--- a/arch/mips/include/asm/mach-ip28/cpu-feature-overrides.h
+++ b/arch/mips/include/asm/mach-ip28/cpu-feature-overrides.h
@@ -16,6 +16,7 @@
  */
 #define cpu_has_watch		1
 #define cpu_has_mips16		0
+#define cpu_has_mips16e2	0
 #define cpu_has_divec		0
 #define cpu_has_vce		0
 #define cpu_has_cache_cdex_p	0
diff --git a/arch/mips/include/asm/mach-ip32/cpu-feature-overrides.h b/arch/mips/include/asm/mach-ip32/cpu-feature-overrides.h
index 241409b78ff1..63b4c889094b 100644
--- a/arch/mips/include/asm/mach-ip32/cpu-feature-overrides.h
+++ b/arch/mips/include/asm/mach-ip32/cpu-feature-overrides.h
@@ -29,6 +29,7 @@
 #define cpu_has_32fpr		1
 #define cpu_has_counter		1
 #define cpu_has_mips16		0
+#define cpu_has_mips16e2	0
 #define cpu_has_vce		0
 #define cpu_has_cache_cdex_s	0
 #define cpu_has_mcheck		0
diff --git a/arch/mips/include/asm/mach-jz4740/cpu-feature-overrides.h b/arch/mips/include/asm/mach-jz4740/cpu-feature-overrides.h
index 0933f94a1e69..7c5e576f9d96 100644
--- a/arch/mips/include/asm/mach-jz4740/cpu-feature-overrides.h
+++ b/arch/mips/include/asm/mach-jz4740/cpu-feature-overrides.h
@@ -23,6 +23,7 @@
 #define cpu_has_ejtag 1
 #define cpu_has_llsc		1
 #define cpu_has_mips16 0
+#define cpu_has_mips16e2	0
 #define cpu_has_mdmx 0
 #define cpu_has_mips3d 0
 #define cpu_has_smartmips 0
diff --git a/arch/mips/include/asm/mach-loongson64/boot_param.h b/arch/mips/include/asm/mach-loongson64/boot_param.h
index d3f3258b7cd4..9f9bb9c53785 100644
--- a/arch/mips/include/asm/mach-loongson64/boot_param.h
+++ b/arch/mips/include/asm/mach-loongson64/boot_param.h
@@ -27,12 +27,22 @@ struct efi_memory_map_loongson {
 } __packed;
 
 enum loongson_cpu_type {
-	Loongson_2E = 0,
-	Loongson_2F = 1,
-	Loongson_3A = 2,
-	Loongson_3B = 3,
-	Loongson_1A = 4,
-	Loongson_1B = 5
+	Legacy_2E = 0x0,
+	Legacy_2F = 0x1,
+	Legacy_3A = 0x2,
+	Legacy_3B = 0x3,
+	Legacy_1A = 0x4,
+	Legacy_1B = 0x5,
+	Legacy_2G = 0x6,
+	Legacy_2H = 0x7,
+	Loongson_1A = 0x100,
+	Loongson_1B = 0x101,
+	Loongson_2E = 0x200,
+	Loongson_2F = 0x201,
+	Loongson_2G = 0x202,
+	Loongson_2H = 0x203,
+	Loongson_3A = 0x300,
+	Loongson_3B = 0x301
 };
 
 /*
diff --git a/arch/mips/include/asm/mach-loongson64/cpu-feature-overrides.h b/arch/mips/include/asm/mach-loongson64/cpu-feature-overrides.h
index 89328a3d44d8..581915ce231c 100644
--- a/arch/mips/include/asm/mach-loongson64/cpu-feature-overrides.h
+++ b/arch/mips/include/asm/mach-loongson64/cpu-feature-overrides.h
@@ -32,6 +32,7 @@
 #define cpu_has_mcheck		0
 #define cpu_has_mdmx		0
 #define cpu_has_mips16		0
+#define cpu_has_mips16e2	0
 #define cpu_has_mips3d		0
 #define cpu_has_mipsmt		0
 #define cpu_has_smartmips	0
diff --git a/arch/mips/include/asm/mach-netlogic/cpu-feature-overrides.h b/arch/mips/include/asm/mach-netlogic/cpu-feature-overrides.h
index 091deb1700e5..0c29ff820bb9 100644
--- a/arch/mips/include/asm/mach-netlogic/cpu-feature-overrides.h
+++ b/arch/mips/include/asm/mach-netlogic/cpu-feature-overrides.h
@@ -13,6 +13,7 @@
 #define cpu_has_4k_cache	1
 #define cpu_has_watch		1
 #define cpu_has_mips16		0
+#define cpu_has_mips16e2	0
 #define cpu_has_counter		1
 #define cpu_has_divec		1
 #define cpu_has_vce		0
diff --git a/arch/mips/include/asm/mach-ralink/ralink_regs.h b/arch/mips/include/asm/mach-ralink/ralink_regs.h
index 9df1a53bcb36..b4e7dfa214eb 100644
--- a/arch/mips/include/asm/mach-ralink/ralink_regs.h
+++ b/arch/mips/include/asm/mach-ralink/ralink_regs.h
@@ -13,6 +13,8 @@
 #ifndef _RALINK_REGS_H_
 #define _RALINK_REGS_H_
 
+#include <linux/io.h>
+
 enum ralink_soc_type {
 	RALINK_UNKNOWN = 0,
 	RT2880_SOC,
diff --git a/arch/mips/include/asm/mach-rc32434/cpu-feature-overrides.h b/arch/mips/include/asm/mach-rc32434/cpu-feature-overrides.h
index b15307597ee3..6a1087ee8c6e 100644
--- a/arch/mips/include/asm/mach-rc32434/cpu-feature-overrides.h
+++ b/arch/mips/include/asm/mach-rc32434/cpu-feature-overrides.h
@@ -48,6 +48,7 @@
 #define cpu_has_llsc			1
 
 #define cpu_has_mips16			0
+#define cpu_has_mips16e2		0
 #define cpu_has_mdmx			0
 #define cpu_has_mips3d			0
 #define cpu_has_smartmips		0
diff --git a/arch/mips/include/asm/mach-rm/cpu-feature-overrides.h b/arch/mips/include/asm/mach-rm/cpu-feature-overrides.h
index d38be668e338..e1e182300fea 100644
--- a/arch/mips/include/asm/mach-rm/cpu-feature-overrides.h
+++ b/arch/mips/include/asm/mach-rm/cpu-feature-overrides.h
@@ -17,6 +17,7 @@
 #define cpu_has_counter		1
 #define cpu_has_watch		0
 #define cpu_has_mips16		0
+#define cpu_has_mips16e2	0
 #define cpu_has_divec		0
 #define cpu_has_cache_cdex_p	1
 #define cpu_has_prefetch	0
diff --git a/arch/mips/include/asm/mach-sibyte/cpu-feature-overrides.h b/arch/mips/include/asm/mach-sibyte/cpu-feature-overrides.h
index 92927b62b5a0..7022358057fd 100644
--- a/arch/mips/include/asm/mach-sibyte/cpu-feature-overrides.h
+++ b/arch/mips/include/asm/mach-sibyte/cpu-feature-overrides.h
@@ -13,6 +13,7 @@
  */
 #define cpu_has_watch		1
 #define cpu_has_mips16		0
+#define cpu_has_mips16e2	0
 #define cpu_has_divec		1
 #define cpu_has_vce		0
 #define cpu_has_cache_cdex_p	0
diff --git a/arch/mips/include/asm/mach-tx49xx/cpu-feature-overrides.h b/arch/mips/include/asm/mach-tx49xx/cpu-feature-overrides.h
index 7f5144c6ce2d..b9d39dc45420 100644
--- a/arch/mips/include/asm/mach-tx49xx/cpu-feature-overrides.h
+++ b/arch/mips/include/asm/mach-tx49xx/cpu-feature-overrides.h
@@ -6,6 +6,7 @@
 #define cpu_has_inclusive_pcaches	0
 
 #define cpu_has_mips16		0
+#define cpu_has_mips16e2	0
 #define cpu_has_mdmx		0
 #define cpu_has_mips3d		0
 #define cpu_has_smartmips	0
diff --git a/arch/mips/include/asm/machine.h b/arch/mips/include/asm/machine.h
index 6b444cd9526f..ecb6c7335484 100644
--- a/arch/mips/include/asm/machine.h
+++ b/arch/mips/include/asm/machine.h
@@ -60,4 +60,35 @@ mips_machine_is_compatible(const struct mips_machine *mach, const void *fdt)
 	return NULL;
 }
 
+/**
+ * struct mips_fdt_fixup - Describe a fixup to apply to an FDT
+ * @apply: applies the fixup to @fdt, returns zero on success else -errno
+ * @description: a short description of the fixup
+ *
+ * Describes a fixup applied to an FDT blob by the @apply function. The
+ * @description field provides a short description of the fixup intended for
+ * use in error messages if the @apply function returns non-zero.
+ */
+struct mips_fdt_fixup {
+	int (*apply)(void *fdt);
+	const char *description;
+};
+
+/**
+ * apply_mips_fdt_fixups() - apply fixups to an FDT blob
+ * @fdt_out: buffer in which to place the fixed-up FDT
+ * @fdt_out_size: the size of the @fdt_out buffer
+ * @fdt_in: the FDT blob
+ * @fixups: pointer to an array of fixups to be applied
+ *
+ * Loop through the array of fixups pointed to by @fixups, calling the apply
+ * function on each until either one returns an error or we reach the end of
+ * the list as indicated by an entry with a NULL apply field.
+ *
+ * Return: zero on success, else -errno
+ */
+extern int __init apply_mips_fdt_fixups(void *fdt_out, size_t fdt_out_size,
+					const void *fdt_in,
+					const struct mips_fdt_fixup *fixups);
+
 #endif /* __MIPS_ASM_MACHINE_H__ */
diff --git a/arch/mips/include/asm/mipsregs.h b/arch/mips/include/asm/mipsregs.h
index 6875b69f59f7..dbb0eceda2c6 100644
--- a/arch/mips/include/asm/mipsregs.h
+++ b/arch/mips/include/asm/mipsregs.h
@@ -652,6 +652,7 @@
 #define MIPS_CONF5_SBRI		(_ULCAST_(1) << 6)
 #define MIPS_CONF5_FRE		(_ULCAST_(1) << 8)
 #define MIPS_CONF5_UFE		(_ULCAST_(1) << 9)
+#define MIPS_CONF5_CA2		(_ULCAST_(1) << 14)
 #define MIPS_CONF5_MSAEN	(_ULCAST_(1) << 27)
 #define MIPS_CONF5_EVA		(_ULCAST_(1) << 28)
 #define MIPS_CONF5_CV		(_ULCAST_(1) << 29)
diff --git a/arch/mips/include/asm/module.h b/arch/mips/include/asm/module.h
index 702c273e67a9..e51add184717 100644
--- a/arch/mips/include/asm/module.h
+++ b/arch/mips/include/asm/module.h
@@ -47,8 +47,8 @@ typedef struct {
 #define Elf_Mips_Rel	Elf32_Rel
 #define Elf_Mips_Rela	Elf32_Rela
 
-#define ELF_MIPS_R_SYM(rel) ELF32_R_SYM(rel.r_info)
-#define ELF_MIPS_R_TYPE(rel) ELF32_R_TYPE(rel.r_info)
+#define ELF_MIPS_R_SYM(rel) ELF32_R_SYM((rel).r_info)
+#define ELF_MIPS_R_TYPE(rel) ELF32_R_TYPE((rel).r_info)
 
 #endif
 
@@ -65,8 +65,8 @@ typedef struct {
 #define Elf_Mips_Rel	Elf64_Mips_Rel
 #define Elf_Mips_Rela	Elf64_Mips_Rela
 
-#define ELF_MIPS_R_SYM(rel) (rel.r_sym)
-#define ELF_MIPS_R_TYPE(rel) (rel.r_type)
+#define ELF_MIPS_R_SYM(rel) ((rel).r_sym)
+#define ELF_MIPS_R_TYPE(rel) ((rel).r_type)
 
 #endif
 
diff --git a/arch/mips/include/asm/octeon/cvmx-l2c-defs.h b/arch/mips/include/asm/octeon/cvmx-l2c-defs.h
index d045973ddb33..3ea84acf1814 100644
--- a/arch/mips/include/asm/octeon/cvmx-l2c-defs.h
+++ b/arch/mips/include/asm/octeon/cvmx-l2c-defs.h
@@ -33,6 +33,10 @@
 #define CVMX_L2C_DBG (CVMX_ADD_IO_SEG(0x0001180080000030ull))
 #define CVMX_L2C_CFG (CVMX_ADD_IO_SEG(0x0001180080000000ull))
 #define CVMX_L2C_CTL (CVMX_ADD_IO_SEG(0x0001180080800000ull))
+#define CVMX_L2C_ERR_TDTX(block_id)					       \
+	(CVMX_ADD_IO_SEG(0x0001180080A007E0ull) + ((block_id) & 3) * 0x40000ull)
+#define CVMX_L2C_ERR_TTGX(block_id)					       \
+	(CVMX_ADD_IO_SEG(0x0001180080A007E8ull) + ((block_id) & 3) * 0x40000ull)
 #define CVMX_L2C_LCKBASE (CVMX_ADD_IO_SEG(0x0001180080000058ull))
 #define CVMX_L2C_LCKOFF (CVMX_ADD_IO_SEG(0x0001180080000060ull))
 #define CVMX_L2C_PFCTL (CVMX_ADD_IO_SEG(0x0001180080000090ull))
@@ -66,9 +70,40 @@
 		((offset) & 1) * 8)
 #define CVMX_L2C_WPAR_PPX(offset) (CVMX_ADD_IO_SEG(0x0001180080840000ull)    + \
 		((offset) & 31) * 8)
-#define CVMX_L2D_FUS3 (CVMX_ADD_IO_SEG(0x00011800800007B8ull))
 
 
+union cvmx_l2c_err_tdtx {
+	uint64_t u64;
+	struct cvmx_l2c_err_tdtx_s {
+		__BITFIELD_FIELD(uint64_t dbe:1,
+		__BITFIELD_FIELD(uint64_t sbe:1,
+		__BITFIELD_FIELD(uint64_t vdbe:1,
+		__BITFIELD_FIELD(uint64_t vsbe:1,
+		__BITFIELD_FIELD(uint64_t syn:10,
+		__BITFIELD_FIELD(uint64_t reserved_22_49:28,
+		__BITFIELD_FIELD(uint64_t wayidx:18,
+		__BITFIELD_FIELD(uint64_t reserved_2_3:2,
+		__BITFIELD_FIELD(uint64_t type:2,
+		;)))))))))
+	} s;
+};
+
+union cvmx_l2c_err_ttgx {
+	uint64_t u64;
+	struct cvmx_l2c_err_ttgx_s {
+		__BITFIELD_FIELD(uint64_t dbe:1,
+		__BITFIELD_FIELD(uint64_t sbe:1,
+		__BITFIELD_FIELD(uint64_t noway:1,
+		__BITFIELD_FIELD(uint64_t reserved_56_60:5,
+		__BITFIELD_FIELD(uint64_t syn:6,
+		__BITFIELD_FIELD(uint64_t reserved_22_49:28,
+		__BITFIELD_FIELD(uint64_t wayidx:15,
+		__BITFIELD_FIELD(uint64_t reserved_2_6:5,
+		__BITFIELD_FIELD(uint64_t type:2,
+		;)))))))))
+	} s;
+};
+
 union cvmx_l2c_cfg {
 	uint64_t u64;
 	struct cvmx_l2c_cfg_s {
diff --git a/arch/mips/include/asm/octeon/cvmx-l2d-defs.h b/arch/mips/include/asm/octeon/cvmx-l2d-defs.h
new file mode 100644
index 000000000000..a951ad5d65ad
--- /dev/null
+++ b/arch/mips/include/asm/octeon/cvmx-l2d-defs.h
@@ -0,0 +1,60 @@
+/***********************license start***************
+ * Author: Cavium Networks
+ *
+ * Contact: support@caviumnetworks.com
+ * This file is part of the OCTEON SDK
+ *
+ * Copyright (c) 2003-2017 Cavium, Inc.
+ *
+ * This file is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License, Version 2, as
+ * published by the Free Software Foundation.
+ *
+ * This file is distributed in the hope that it will be useful, but
+ * AS-IS and WITHOUT ANY WARRANTY; without even the implied warranty
+ * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE, TITLE, or
+ * NONINFRINGEMENT.  See the GNU General Public License for more
+ * details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this file; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+ * or visit http://www.gnu.org/licenses/.
+ *
+ * This file may also be available under a different license from Cavium.
+ * Contact Cavium Networks for more information
+ ***********************license end**************************************/
+
+#ifndef __CVMX_L2D_DEFS_H__
+#define __CVMX_L2D_DEFS_H__
+
+#define CVMX_L2D_ERR	(CVMX_ADD_IO_SEG(0x0001180080000010ull))
+#define CVMX_L2D_FUS3	(CVMX_ADD_IO_SEG(0x00011800800007B8ull))
+
+
+union cvmx_l2d_err {
+	uint64_t u64;
+	struct cvmx_l2d_err_s {
+		__BITFIELD_FIELD(uint64_t reserved_6_63:58,
+		__BITFIELD_FIELD(uint64_t bmhclsel:1,
+		__BITFIELD_FIELD(uint64_t ded_err:1,
+		__BITFIELD_FIELD(uint64_t sec_err:1,
+		__BITFIELD_FIELD(uint64_t ded_intena:1,
+		__BITFIELD_FIELD(uint64_t sec_intena:1,
+		__BITFIELD_FIELD(uint64_t ecc_ena:1,
+		;)))))))
+	} s;
+};
+
+union cvmx_l2d_fus3 {
+	uint64_t u64;
+	struct cvmx_l2d_fus3_s {
+		__BITFIELD_FIELD(uint64_t reserved_40_63:24,
+		__BITFIELD_FIELD(uint64_t ema_ctl:3,
+		__BITFIELD_FIELD(uint64_t reserved_34_36:3,
+		__BITFIELD_FIELD(uint64_t q3fus:34,
+		;))))
+	} s;
+};
+
+#endif
diff --git a/arch/mips/include/asm/octeon/cvmx.h b/arch/mips/include/asm/octeon/cvmx.h
index 9742202f2a32..e638735cc3ac 100644
--- a/arch/mips/include/asm/octeon/cvmx.h
+++ b/arch/mips/include/asm/octeon/cvmx.h
@@ -62,6 +62,7 @@ enum cvmx_mips_space {
 #include <asm/octeon/cvmx-iob-defs.h>
 #include <asm/octeon/cvmx-ipd-defs.h>
 #include <asm/octeon/cvmx-l2c-defs.h>
+#include <asm/octeon/cvmx-l2d-defs.h>
 #include <asm/octeon/cvmx-l2t-defs.h>
 #include <asm/octeon/cvmx-led-defs.h>
 #include <asm/octeon/cvmx-mio-defs.h>
diff --git a/arch/mips/include/asm/pgalloc.h b/arch/mips/include/asm/pgalloc.h
index a1bdb1ea5234..39b9f311c4ef 100644
--- a/arch/mips/include/asm/pgalloc.h
+++ b/arch/mips/include/asm/pgalloc.h
@@ -116,7 +116,7 @@ static inline pud_t *pud_alloc_one(struct mm_struct *mm, unsigned long address)
 {
 	pud_t *pud;
 
-	pud = (pud_t *) __get_free_pages(GFP_KERNEL|__GFP_REPEAT, PUD_ORDER);
+	pud = (pud_t *) __get_free_pages(GFP_KERNEL, PUD_ORDER);
 	if (pud)
 		pud_init((unsigned long)pud, (unsigned long)invalid_pmd_table);
 	return pud;
diff --git a/arch/mips/include/asm/smp.h b/arch/mips/include/asm/smp.h
index 98a117a05fbc..bab3d41e5987 100644
--- a/arch/mips/include/asm/smp.h
+++ b/arch/mips/include/asm/smp.h
@@ -47,7 +47,7 @@ extern int __cpu_logical_map[NR_CPUS];
 /* Mask of CPUs which are currently definitely operating coherently */
 extern cpumask_t cpu_coherent_mask;
 
-extern void asmlinkage smp_bootstrap(void);
+extern asmlinkage void smp_bootstrap(void);
 
 extern void calculate_cpu_foreign_map(void);
 
diff --git a/arch/mips/include/asm/spinlock.h b/arch/mips/include/asm/spinlock.h
index a8df44d60607..a7d21da16b6a 100644
--- a/arch/mips/include/asm/spinlock.h
+++ b/arch/mips/include/asm/spinlock.h
@@ -9,431 +9,9 @@
 #ifndef _ASM_SPINLOCK_H
 #define _ASM_SPINLOCK_H
 
-#include <linux/compiler.h>
-
-#include <asm/barrier.h>
 #include <asm/processor.h>
-#include <asm/compiler.h>
-#include <asm/war.h>
-
-/*
- * Your basic SMP spinlocks, allowing only a single CPU anywhere
- *
- * Simple spin lock operations.	 There are two variants, one clears IRQ's
- * on the local processor, one does not.
- *
- * These are fair FIFO ticket locks
- *
- * (the type definitions are in asm/spinlock_types.h)
- */
-
-
-/*
- * Ticket locks are conceptually two parts, one indicating the current head of
- * the queue, and the other indicating the current tail. The lock is acquired
- * by atomically noting the tail and incrementing it by one (thus adding
- * ourself to the queue and noting our position), then waiting until the head
- * becomes equal to the the initial value of the tail.
- */
-
-static inline int arch_spin_is_locked(arch_spinlock_t *lock)
-{
-	u32 counters = ACCESS_ONCE(lock->lock);
-
-	return ((counters >> 16) ^ counters) & 0xffff;
-}
-
-static inline int arch_spin_value_unlocked(arch_spinlock_t lock)
-{
-	return lock.h.serving_now == lock.h.ticket;
-}
-
-#define arch_spin_lock_flags(lock, flags) arch_spin_lock(lock)
-
-static inline void arch_spin_unlock_wait(arch_spinlock_t *lock)
-{
-	u16 owner = READ_ONCE(lock->h.serving_now);
-	smp_rmb();
-	for (;;) {
-		arch_spinlock_t tmp = READ_ONCE(*lock);
-
-		if (tmp.h.serving_now == tmp.h.ticket ||
-		    tmp.h.serving_now != owner)
-			break;
-
-		cpu_relax();
-	}
-	smp_acquire__after_ctrl_dep();
-}
-
-static inline int arch_spin_is_contended(arch_spinlock_t *lock)
-{
-	u32 counters = ACCESS_ONCE(lock->lock);
-
-	return (((counters >> 16) - counters) & 0xffff) > 1;
-}
-#define arch_spin_is_contended	arch_spin_is_contended
-
-static inline void arch_spin_lock(arch_spinlock_t *lock)
-{
-	int my_ticket;
-	int tmp;
-	int inc = 0x10000;
-
-	if (R10000_LLSC_WAR) {
-		__asm__ __volatile__ (
-		"	.set push		# arch_spin_lock	\n"
-		"	.set noreorder					\n"
-		"							\n"
-		"1:	ll	%[ticket], %[ticket_ptr]		\n"
-		"	addu	%[my_ticket], %[ticket], %[inc]		\n"
-		"	sc	%[my_ticket], %[ticket_ptr]		\n"
-		"	beqzl	%[my_ticket], 1b			\n"
-		"	 nop						\n"
-		"	srl	%[my_ticket], %[ticket], 16		\n"
-		"	andi	%[ticket], %[ticket], 0xffff		\n"
-		"	bne	%[ticket], %[my_ticket], 4f		\n"
-		"	 subu	%[ticket], %[my_ticket], %[ticket]	\n"
-		"2:							\n"
-		"	.subsection 2					\n"
-		"4:	andi	%[ticket], %[ticket], 0xffff		\n"
-		"	sll	%[ticket], 5				\n"
-		"							\n"
-		"6:	bnez	%[ticket], 6b				\n"
-		"	 subu	%[ticket], 1				\n"
-		"							\n"
-		"	lhu	%[ticket], %[serving_now_ptr]		\n"
-		"	beq	%[ticket], %[my_ticket], 2b		\n"
-		"	 subu	%[ticket], %[my_ticket], %[ticket]	\n"
-		"	b	4b					\n"
-		"	 subu	%[ticket], %[ticket], 1			\n"
-		"	.previous					\n"
-		"	.set pop					\n"
-		: [ticket_ptr] "+" GCC_OFF_SMALL_ASM() (lock->lock),
-		  [serving_now_ptr] "+m" (lock->h.serving_now),
-		  [ticket] "=&r" (tmp),
-		  [my_ticket] "=&r" (my_ticket)
-		: [inc] "r" (inc));
-	} else {
-		__asm__ __volatile__ (
-		"	.set push		# arch_spin_lock	\n"
-		"	.set noreorder					\n"
-		"							\n"
-		"1:	ll	%[ticket], %[ticket_ptr]		\n"
-		"	addu	%[my_ticket], %[ticket], %[inc]		\n"
-		"	sc	%[my_ticket], %[ticket_ptr]		\n"
-		"	beqz	%[my_ticket], 1b			\n"
-		"	 srl	%[my_ticket], %[ticket], 16		\n"
-		"	andi	%[ticket], %[ticket], 0xffff		\n"
-		"	bne	%[ticket], %[my_ticket], 4f		\n"
-		"	 subu	%[ticket], %[my_ticket], %[ticket]	\n"
-		"2:	.insn						\n"
-		"	.subsection 2					\n"
-		"4:	andi	%[ticket], %[ticket], 0xffff		\n"
-		"	sll	%[ticket], 5				\n"
-		"							\n"
-		"6:	bnez	%[ticket], 6b				\n"
-		"	 subu	%[ticket], 1				\n"
-		"							\n"
-		"	lhu	%[ticket], %[serving_now_ptr]		\n"
-		"	beq	%[ticket], %[my_ticket], 2b		\n"
-		"	 subu	%[ticket], %[my_ticket], %[ticket]	\n"
-		"	b	4b					\n"
-		"	 subu	%[ticket], %[ticket], 1			\n"
-		"	.previous					\n"
-		"	.set pop					\n"
-		: [ticket_ptr] "+" GCC_OFF_SMALL_ASM() (lock->lock),
-		  [serving_now_ptr] "+m" (lock->h.serving_now),
-		  [ticket] "=&r" (tmp),
-		  [my_ticket] "=&r" (my_ticket)
-		: [inc] "r" (inc));
-	}
-
-	smp_llsc_mb();
-}
-
-static inline void arch_spin_unlock(arch_spinlock_t *lock)
-{
-	unsigned int serving_now = lock->h.serving_now + 1;
-	wmb();
-	lock->h.serving_now = (u16)serving_now;
-	nudge_writes();
-}
-
-static inline unsigned int arch_spin_trylock(arch_spinlock_t *lock)
-{
-	int tmp, tmp2, tmp3;
-	int inc = 0x10000;
-
-	if (R10000_LLSC_WAR) {
-		__asm__ __volatile__ (
-		"	.set push		# arch_spin_trylock	\n"
-		"	.set noreorder					\n"
-		"							\n"
-		"1:	ll	%[ticket], %[ticket_ptr]		\n"
-		"	srl	%[my_ticket], %[ticket], 16		\n"
-		"	andi	%[now_serving], %[ticket], 0xffff	\n"
-		"	bne	%[my_ticket], %[now_serving], 3f	\n"
-		"	 addu	%[ticket], %[ticket], %[inc]		\n"
-		"	sc	%[ticket], %[ticket_ptr]		\n"
-		"	beqzl	%[ticket], 1b				\n"
-		"	 li	%[ticket], 1				\n"
-		"2:							\n"
-		"	.subsection 2					\n"
-		"3:	b	2b					\n"
-		"	 li	%[ticket], 0				\n"
-		"	.previous					\n"
-		"	.set pop					\n"
-		: [ticket_ptr] "+" GCC_OFF_SMALL_ASM() (lock->lock),
-		  [ticket] "=&r" (tmp),
-		  [my_ticket] "=&r" (tmp2),
-		  [now_serving] "=&r" (tmp3)
-		: [inc] "r" (inc));
-	} else {
-		__asm__ __volatile__ (
-		"	.set push		# arch_spin_trylock	\n"
-		"	.set noreorder					\n"
-		"							\n"
-		"1:	ll	%[ticket], %[ticket_ptr]		\n"
-		"	srl	%[my_ticket], %[ticket], 16		\n"
-		"	andi	%[now_serving], %[ticket], 0xffff	\n"
-		"	bne	%[my_ticket], %[now_serving], 3f	\n"
-		"	 addu	%[ticket], %[ticket], %[inc]		\n"
-		"	sc	%[ticket], %[ticket_ptr]		\n"
-		"	beqz	%[ticket], 1b				\n"
-		"	 li	%[ticket], 1				\n"
-		"2:	.insn						\n"
-		"	.subsection 2					\n"
-		"3:	b	2b					\n"
-		"	 li	%[ticket], 0				\n"
-		"	.previous					\n"
-		"	.set pop					\n"
-		: [ticket_ptr] "+" GCC_OFF_SMALL_ASM() (lock->lock),
-		  [ticket] "=&r" (tmp),
-		  [my_ticket] "=&r" (tmp2),
-		  [now_serving] "=&r" (tmp3)
-		: [inc] "r" (inc));
-	}
-
-	smp_llsc_mb();
-
-	return tmp;
-}
-
-/*
- * Read-write spinlocks, allowing multiple readers but only one writer.
- *
- * NOTE! it is quite common to have readers in interrupts but no interrupt
- * writers. For those circumstances we can "mix" irq-safe locks - any writer
- * needs to get a irq-safe write-lock, but readers can get non-irqsafe
- * read-locks.
- */
-
-/*
- * read_can_lock - would read_trylock() succeed?
- * @lock: the rwlock in question.
- */
-#define arch_read_can_lock(rw)	((rw)->lock >= 0)
-
-/*
- * write_can_lock - would write_trylock() succeed?
- * @lock: the rwlock in question.
- */
-#define arch_write_can_lock(rw) (!(rw)->lock)
-
-static inline void arch_read_lock(arch_rwlock_t *rw)
-{
-	unsigned int tmp;
-
-	if (R10000_LLSC_WAR) {
-		__asm__ __volatile__(
-		"	.set	noreorder	# arch_read_lock	\n"
-		"1:	ll	%1, %2					\n"
-		"	bltz	%1, 1b					\n"
-		"	 addu	%1, 1					\n"
-		"	sc	%1, %0					\n"
-		"	beqzl	%1, 1b					\n"
-		"	 nop						\n"
-		"	.set	reorder					\n"
-		: "=" GCC_OFF_SMALL_ASM() (rw->lock), "=&r" (tmp)
-		: GCC_OFF_SMALL_ASM() (rw->lock)
-		: "memory");
-	} else {
-		do {
-			__asm__ __volatile__(
-			"1:	ll	%1, %2	# arch_read_lock	\n"
-			"	bltz	%1, 1b				\n"
-			"	 addu	%1, 1				\n"
-			"2:	sc	%1, %0				\n"
-			: "=" GCC_OFF_SMALL_ASM() (rw->lock), "=&r" (tmp)
-			: GCC_OFF_SMALL_ASM() (rw->lock)
-			: "memory");
-		} while (unlikely(!tmp));
-	}
-
-	smp_llsc_mb();
-}
-
-static inline void arch_read_unlock(arch_rwlock_t *rw)
-{
-	unsigned int tmp;
-
-	smp_mb__before_llsc();
-
-	if (R10000_LLSC_WAR) {
-		__asm__ __volatile__(
-		"1:	ll	%1, %2		# arch_read_unlock	\n"
-		"	addiu	%1, -1					\n"
-		"	sc	%1, %0					\n"
-		"	beqzl	%1, 1b					\n"
-		: "=" GCC_OFF_SMALL_ASM() (rw->lock), "=&r" (tmp)
-		: GCC_OFF_SMALL_ASM() (rw->lock)
-		: "memory");
-	} else {
-		do {
-			__asm__ __volatile__(
-			"1:	ll	%1, %2	# arch_read_unlock	\n"
-			"	addiu	%1, -1				\n"
-			"	sc	%1, %0				\n"
-			: "=" GCC_OFF_SMALL_ASM() (rw->lock), "=&r" (tmp)
-			: GCC_OFF_SMALL_ASM() (rw->lock)
-			: "memory");
-		} while (unlikely(!tmp));
-	}
-}
-
-static inline void arch_write_lock(arch_rwlock_t *rw)
-{
-	unsigned int tmp;
-
-	if (R10000_LLSC_WAR) {
-		__asm__ __volatile__(
-		"	.set	noreorder	# arch_write_lock	\n"
-		"1:	ll	%1, %2					\n"
-		"	bnez	%1, 1b					\n"
-		"	 lui	%1, 0x8000				\n"
-		"	sc	%1, %0					\n"
-		"	beqzl	%1, 1b					\n"
-		"	 nop						\n"
-		"	.set	reorder					\n"
-		: "=" GCC_OFF_SMALL_ASM() (rw->lock), "=&r" (tmp)
-		: GCC_OFF_SMALL_ASM() (rw->lock)
-		: "memory");
-	} else {
-		do {
-			__asm__ __volatile__(
-			"1:	ll	%1, %2	# arch_write_lock	\n"
-			"	bnez	%1, 1b				\n"
-			"	 lui	%1, 0x8000			\n"
-			"2:	sc	%1, %0				\n"
-			: "=" GCC_OFF_SMALL_ASM() (rw->lock), "=&r" (tmp)
-			: GCC_OFF_SMALL_ASM() (rw->lock)
-			: "memory");
-		} while (unlikely(!tmp));
-	}
-
-	smp_llsc_mb();
-}
-
-static inline void arch_write_unlock(arch_rwlock_t *rw)
-{
-	smp_mb__before_llsc();
-
-	__asm__ __volatile__(
-	"				# arch_write_unlock	\n"
-	"	sw	$0, %0					\n"
-	: "=m" (rw->lock)
-	: "m" (rw->lock)
-	: "memory");
-}
-
-static inline int arch_read_trylock(arch_rwlock_t *rw)
-{
-	unsigned int tmp;
-	int ret;
-
-	if (R10000_LLSC_WAR) {
-		__asm__ __volatile__(
-		"	.set	noreorder	# arch_read_trylock	\n"
-		"	li	%2, 0					\n"
-		"1:	ll	%1, %3					\n"
-		"	bltz	%1, 2f					\n"
-		"	 addu	%1, 1					\n"
-		"	sc	%1, %0					\n"
-		"	.set	reorder					\n"
-		"	beqzl	%1, 1b					\n"
-		"	 nop						\n"
-		__WEAK_LLSC_MB
-		"	li	%2, 1					\n"
-		"2:							\n"
-		: "=" GCC_OFF_SMALL_ASM() (rw->lock), "=&r" (tmp), "=&r" (ret)
-		: GCC_OFF_SMALL_ASM() (rw->lock)
-		: "memory");
-	} else {
-		__asm__ __volatile__(
-		"	.set	noreorder	# arch_read_trylock	\n"
-		"	li	%2, 0					\n"
-		"1:	ll	%1, %3					\n"
-		"	bltz	%1, 2f					\n"
-		"	 addu	%1, 1					\n"
-		"	sc	%1, %0					\n"
-		"	beqz	%1, 1b					\n"
-		"	 nop						\n"
-		"	.set	reorder					\n"
-		__WEAK_LLSC_MB
-		"	li	%2, 1					\n"
-		"2:	.insn						\n"
-		: "=" GCC_OFF_SMALL_ASM() (rw->lock), "=&r" (tmp), "=&r" (ret)
-		: GCC_OFF_SMALL_ASM() (rw->lock)
-		: "memory");
-	}
-
-	return ret;
-}
-
-static inline int arch_write_trylock(arch_rwlock_t *rw)
-{
-	unsigned int tmp;
-	int ret;
-
-	if (R10000_LLSC_WAR) {
-		__asm__ __volatile__(
-		"	.set	noreorder	# arch_write_trylock	\n"
-		"	li	%2, 0					\n"
-		"1:	ll	%1, %3					\n"
-		"	bnez	%1, 2f					\n"
-		"	 lui	%1, 0x8000				\n"
-		"	sc	%1, %0					\n"
-		"	beqzl	%1, 1b					\n"
-		"	 nop						\n"
-		__WEAK_LLSC_MB
-		"	li	%2, 1					\n"
-		"	.set	reorder					\n"
-		"2:							\n"
-		: "=" GCC_OFF_SMALL_ASM() (rw->lock), "=&r" (tmp), "=&r" (ret)
-		: GCC_OFF_SMALL_ASM() (rw->lock)
-		: "memory");
-	} else {
-		do {
-			__asm__ __volatile__(
-			"	ll	%1, %3	# arch_write_trylock	\n"
-			"	li	%2, 0				\n"
-			"	bnez	%1, 2f				\n"
-			"	lui	%1, 0x8000			\n"
-			"	sc	%1, %0				\n"
-			"	li	%2, 1				\n"
-			"2:	.insn					\n"
-			: "=" GCC_OFF_SMALL_ASM() (rw->lock), "=&r" (tmp),
-			  "=&r" (ret)
-			: GCC_OFF_SMALL_ASM() (rw->lock)
-			: "memory");
-		} while (unlikely(!tmp));
-
-		smp_llsc_mb();
-	}
-
-	return ret;
-}
+#include <asm/qrwlock.h>
+#include <asm/qspinlock.h>
 
 #define arch_read_lock_flags(lock, flags) arch_read_lock(lock)
 #define arch_write_lock_flags(lock, flags) arch_write_lock(lock)
diff --git a/arch/mips/include/asm/spinlock_types.h b/arch/mips/include/asm/spinlock_types.h
index 9b2528e612c0..177e722eb96c 100644
--- a/arch/mips/include/asm/spinlock_types.h
+++ b/arch/mips/include/asm/spinlock_types.h
@@ -1,37 +1,7 @@
 #ifndef _ASM_SPINLOCK_TYPES_H
 #define _ASM_SPINLOCK_TYPES_H
 
-#ifndef __LINUX_SPINLOCK_TYPES_H
-# error "please don't include this file directly"
-#endif
-
-#include <linux/types.h>
-
-#include <asm/byteorder.h>
-
-typedef union {
-	/*
-	 * bits	 0..15 : serving_now
-	 * bits 16..31 : ticket
-	 */
-	u32 lock;
-	struct {
-#ifdef __BIG_ENDIAN
-		u16 ticket;
-		u16 serving_now;
-#else
-		u16 serving_now;
-		u16 ticket;
-#endif
-	} h;
-} arch_spinlock_t;
-
-#define __ARCH_SPIN_LOCK_UNLOCKED	{ .lock = 0 }
-
-typedef struct {
-	volatile unsigned int lock;
-} arch_rwlock_t;
-
-#define __ARCH_RW_LOCK_UNLOCKED		{ 0 }
+#include <asm-generic/qspinlock_types.h>
+#include <asm-generic/qrwlock_types.h>
 
 #endif
diff --git a/arch/mips/include/asm/syscall.h b/arch/mips/include/asm/syscall.h
index d87882513ee3..7c713025b23f 100644
--- a/arch/mips/include/asm/syscall.h
+++ b/arch/mips/include/asm/syscall.h
@@ -85,7 +85,7 @@ static inline void syscall_set_return_value(struct task_struct *task,
 {
 	if (error) {
 		regs->regs[2] = -error;
-		regs->regs[7] = -1;
+		regs->regs[7] = 1;
 	} else {
 		regs->regs[2] = val;
 		regs->regs[7] = 0;
diff --git a/arch/mips/include/asm/uaccess.h b/arch/mips/include/asm/uaccess.h
index 9700251159b1..b71306947290 100644
--- a/arch/mips/include/asm/uaccess.h
+++ b/arch/mips/include/asm/uaccess.h
@@ -497,283 +497,6 @@ do {									\
 extern void __put_user_unknown(void);
 
 /*
- * ul{b,h,w} are macros and there are no equivalent macros for EVA.
- * EVA unaligned access is handled in the ADE exception handler.
- */
-#ifndef CONFIG_EVA
-/*
- * put_user_unaligned: - Write a simple value into user space.
- * @x:	 Value to copy to user space.
- * @ptr: Destination address, in user space.
- *
- * Context: User context only. This function may sleep if pagefaults are
- *          enabled.
- *
- * This macro copies a single simple value from kernel space to user
- * space.  It supports simple types like char and int, but not larger
- * data types like structures or arrays.
- *
- * @ptr must have pointer-to-simple-variable type, and @x must be assignable
- * to the result of dereferencing @ptr.
- *
- * Returns zero on success, or -EFAULT on error.
- */
-#define put_user_unaligned(x,ptr)	\
-	__put_user_unaligned_check((x),(ptr),sizeof(*(ptr)))
-
-/*
- * get_user_unaligned: - Get a simple variable from user space.
- * @x:	 Variable to store result.
- * @ptr: Source address, in user space.
- *
- * Context: User context only. This function may sleep if pagefaults are
- *          enabled.
- *
- * This macro copies a single simple variable from user space to kernel
- * space.  It supports simple types like char and int, but not larger
- * data types like structures or arrays.
- *
- * @ptr must have pointer-to-simple-variable type, and the result of
- * dereferencing @ptr must be assignable to @x without a cast.
- *
- * Returns zero on success, or -EFAULT on error.
- * On error, the variable @x is set to zero.
- */
-#define get_user_unaligned(x,ptr) \
-	__get_user_unaligned_check((x),(ptr),sizeof(*(ptr)))
-
-/*
- * __put_user_unaligned: - Write a simple value into user space, with less checking.
- * @x:	 Value to copy to user space.
- * @ptr: Destination address, in user space.
- *
- * Context: User context only. This function may sleep if pagefaults are
- *          enabled.
- *
- * This macro copies a single simple value from kernel space to user
- * space.  It supports simple types like char and int, but not larger
- * data types like structures or arrays.
- *
- * @ptr must have pointer-to-simple-variable type, and @x must be assignable
- * to the result of dereferencing @ptr.
- *
- * Caller must check the pointer with access_ok() before calling this
- * function.
- *
- * Returns zero on success, or -EFAULT on error.
- */
-#define __put_user_unaligned(x,ptr) \
-	__put_user_unaligned_nocheck((x),(ptr),sizeof(*(ptr)))
-
-/*
- * __get_user_unaligned: - Get a simple variable from user space, with less checking.
- * @x:	 Variable to store result.
- * @ptr: Source address, in user space.
- *
- * Context: User context only. This function may sleep if pagefaults are
- *          enabled.
- *
- * This macro copies a single simple variable from user space to kernel
- * space.  It supports simple types like char and int, but not larger
- * data types like structures or arrays.
- *
- * @ptr must have pointer-to-simple-variable type, and the result of
- * dereferencing @ptr must be assignable to @x without a cast.
- *
- * Caller must check the pointer with access_ok() before calling this
- * function.
- *
- * Returns zero on success, or -EFAULT on error.
- * On error, the variable @x is set to zero.
- */
-#define __get_user_unaligned(x,ptr) \
-	__get_user_unaligned_nocheck((x),(ptr),sizeof(*(ptr)))
-
-/*
- * Yuck.  We need two variants, one for 64bit operation and one
- * for 32 bit mode and old iron.
- */
-#ifdef CONFIG_32BIT
-#define __GET_USER_UNALIGNED_DW(val, ptr)				\
-	__get_user_unaligned_asm_ll32(val, ptr)
-#endif
-#ifdef CONFIG_64BIT
-#define __GET_USER_UNALIGNED_DW(val, ptr)				\
-	__get_user_unaligned_asm(val, "uld", ptr)
-#endif
-
-extern void __get_user_unaligned_unknown(void);
-
-#define __get_user_unaligned_common(val, size, ptr)			\
-do {									\
-	switch (size) {							\
-	case 1: __get_data_asm(val, "lb", ptr); break;			\
-	case 2: __get_data_unaligned_asm(val, "ulh", ptr); break;	\
-	case 4: __get_data_unaligned_asm(val, "ulw", ptr); break;	\
-	case 8: __GET_USER_UNALIGNED_DW(val, ptr); break;		\
-	default: __get_user_unaligned_unknown(); break;			\
-	}								\
-} while (0)
-
-#define __get_user_unaligned_nocheck(x,ptr,size)			\
-({									\
-	int __gu_err;							\
-									\
-	__get_user_unaligned_common((x), size, ptr);			\
-	__gu_err;							\
-})
-
-#define __get_user_unaligned_check(x,ptr,size)				\
-({									\
-	int __gu_err = -EFAULT;						\
-	const __typeof__(*(ptr)) __user * __gu_ptr = (ptr);		\
-									\
-	if (likely(access_ok(VERIFY_READ,  __gu_ptr, size)))		\
-		__get_user_unaligned_common((x), size, __gu_ptr);	\
-									\
-	__gu_err;							\
-})
-
-#define __get_data_unaligned_asm(val, insn, addr)			\
-{									\
-	long __gu_tmp;							\
-									\
-	__asm__ __volatile__(						\
-	"1:	" insn "	%1, %3				\n"	\
-	"2:							\n"	\
-	"	.insn						\n"	\
-	"	.section .fixup,\"ax\"				\n"	\
-	"3:	li	%0, %4					\n"	\
-	"	move	%1, $0					\n"	\
-	"	j	2b					\n"	\
-	"	.previous					\n"	\
-	"	.section __ex_table,\"a\"			\n"	\
-	"	"__UA_ADDR "\t1b, 3b				\n"	\
-	"	"__UA_ADDR "\t1b + 4, 3b			\n"	\
-	"	.previous					\n"	\
-	: "=r" (__gu_err), "=r" (__gu_tmp)				\
-	: "0" (0), "o" (__m(addr)), "i" (-EFAULT));			\
-									\
-	(val) = (__typeof__(*(addr))) __gu_tmp;				\
-}
-
-/*
- * Get a long long 64 using 32 bit registers.
- */
-#define __get_user_unaligned_asm_ll32(val, addr)			\
-{									\
-	unsigned long long __gu_tmp;					\
-									\
-	__asm__ __volatile__(						\
-	"1:	ulw	%1, (%3)				\n"	\
-	"2:	ulw	%D1, 4(%3)				\n"	\
-	"	move	%0, $0					\n"	\
-	"3:							\n"	\
-	"	.insn						\n"	\
-	"	.section	.fixup,\"ax\"			\n"	\
-	"4:	li	%0, %4					\n"	\
-	"	move	%1, $0					\n"	\
-	"	move	%D1, $0					\n"	\
-	"	j	3b					\n"	\
-	"	.previous					\n"	\
-	"	.section	__ex_table,\"a\"		\n"	\
-	"	" __UA_ADDR "	1b, 4b				\n"	\
-	"	" __UA_ADDR "	1b + 4, 4b			\n"	\
-	"	" __UA_ADDR "	2b, 4b				\n"	\
-	"	" __UA_ADDR "	2b + 4, 4b			\n"	\
-	"	.previous					\n"	\
-	: "=r" (__gu_err), "=&r" (__gu_tmp)				\
-	: "0" (0), "r" (addr), "i" (-EFAULT));				\
-	(val) = (__typeof__(*(addr))) __gu_tmp;				\
-}
-
-/*
- * Yuck.  We need two variants, one for 64bit operation and one
- * for 32 bit mode and old iron.
- */
-#ifdef CONFIG_32BIT
-#define __PUT_USER_UNALIGNED_DW(ptr) __put_user_unaligned_asm_ll32(ptr)
-#endif
-#ifdef CONFIG_64BIT
-#define __PUT_USER_UNALIGNED_DW(ptr) __put_user_unaligned_asm("usd", ptr)
-#endif
-
-#define __put_user_unaligned_common(ptr, size)				\
-do {									\
-	switch (size) {							\
-	case 1: __put_data_asm("sb", ptr); break;			\
-	case 2: __put_user_unaligned_asm("ush", ptr); break;		\
-	case 4: __put_user_unaligned_asm("usw", ptr); break;		\
-	case 8: __PUT_USER_UNALIGNED_DW(ptr); break;			\
-	default: __put_user_unaligned_unknown(); break;			\
-} while (0)
-
-#define __put_user_unaligned_nocheck(x,ptr,size)			\
-({									\
-	__typeof__(*(ptr)) __pu_val;					\
-	int __pu_err = 0;						\
-									\
-	__pu_val = (x);							\
-	__put_user_unaligned_common(ptr, size);				\
-	__pu_err;							\
-})
-
-#define __put_user_unaligned_check(x,ptr,size)				\
-({									\
-	__typeof__(*(ptr)) __user *__pu_addr = (ptr);			\
-	__typeof__(*(ptr)) __pu_val = (x);				\
-	int __pu_err = -EFAULT;						\
-									\
-	if (likely(access_ok(VERIFY_WRITE,  __pu_addr, size)))		\
-		__put_user_unaligned_common(__pu_addr, size);		\
-									\
-	__pu_err;							\
-})
-
-#define __put_user_unaligned_asm(insn, ptr)				\
-{									\
-	__asm__ __volatile__(						\
-	"1:	" insn "	%z2, %3		# __put_user_unaligned_asm\n" \
-	"2:							\n"	\
-	"	.insn						\n"	\
-	"	.section	.fixup,\"ax\"			\n"	\
-	"3:	li	%0, %4					\n"	\
-	"	j	2b					\n"	\
-	"	.previous					\n"	\
-	"	.section	__ex_table,\"a\"		\n"	\
-	"	" __UA_ADDR "	1b, 3b				\n"	\
-	"	.previous					\n"	\
-	: "=r" (__pu_err)						\
-	: "0" (0), "Jr" (__pu_val), "o" (__m(ptr)),			\
-	  "i" (-EFAULT));						\
-}
-
-#define __put_user_unaligned_asm_ll32(ptr)				\
-{									\
-	__asm__ __volatile__(						\
-	"1:	sw	%2, (%3)	# __put_user_unaligned_asm_ll32 \n" \
-	"2:	sw	%D2, 4(%3)				\n"	\
-	"3:							\n"	\
-	"	.insn						\n"	\
-	"	.section	.fixup,\"ax\"			\n"	\
-	"4:	li	%0, %4					\n"	\
-	"	j	3b					\n"	\
-	"	.previous					\n"	\
-	"	.section	__ex_table,\"a\"		\n"	\
-	"	" __UA_ADDR "	1b, 4b				\n"	\
-	"	" __UA_ADDR "	1b + 4, 4b			\n"	\
-	"	" __UA_ADDR "	2b, 4b				\n"	\
-	"	" __UA_ADDR "	2b + 4, 4b			\n"	\
-	"	.previous"						\
-	: "=r" (__pu_err)						\
-	: "0" (0), "r" (__pu_val), "r" (ptr),				\
-	  "i" (-EFAULT));						\
-}
-
-extern void __put_user_unaligned_unknown(void);
-#endif
-
-/*
  * We're generating jump to subroutines which will be outside the range of
  * jump instructions
  */
diff --git a/arch/mips/include/asm/uasm.h b/arch/mips/include/asm/uasm.h
index 3748f4d120a5..59dae37f6b8d 100644
--- a/arch/mips/include/asm/uasm.h
+++ b/arch/mips/include/asm/uasm.h
@@ -72,9 +72,12 @@ Ip_u1u2s3(_beq);
 Ip_u1u2s3(_beql);
 Ip_u1s2(_bgez);
 Ip_u1s2(_bgezl);
+Ip_u1s2(_bgtz);
+Ip_u1s2(_blez);
 Ip_u1s2(_bltz);
 Ip_u1s2(_bltzl);
 Ip_u1u2s3(_bne);
+Ip_u1(_break);
 Ip_u2s3u1(_cache);
 Ip_u1u2(_cfc1);
 Ip_u2u1(_cfcmsa);
@@ -82,19 +85,28 @@ Ip_u1u2(_ctc1);
 Ip_u2u1(_ctcmsa);
 Ip_u2u1s3(_daddiu);
 Ip_u3u1u2(_daddu);
+Ip_u1u2(_ddivu);
 Ip_u1(_di);
 Ip_u2u1msbu3(_dins);
 Ip_u2u1msbu3(_dinsm);
+Ip_u2u1msbu3(_dinsu);
 Ip_u1u2(_divu);
 Ip_u1u2u3(_dmfc0);
 Ip_u1u2u3(_dmtc0);
+Ip_u1u2(_dmultu);
 Ip_u2u1u3(_drotr);
 Ip_u2u1u3(_drotr32);
+Ip_u2u1(_dsbh);
+Ip_u2u1(_dshd);
 Ip_u2u1u3(_dsll);
 Ip_u2u1u3(_dsll32);
+Ip_u3u2u1(_dsllv);
 Ip_u2u1u3(_dsra);
+Ip_u2u1u3(_dsra32);
+Ip_u3u2u1(_dsrav);
 Ip_u2u1u3(_dsrl);
 Ip_u2u1u3(_dsrl32);
+Ip_u3u2u1(_dsrlv);
 Ip_u3u1u2(_dsubu);
 Ip_0(_eret);
 Ip_u2u1msbu3(_ext);
@@ -104,6 +116,7 @@ Ip_u1(_jal);
 Ip_u2u1(_jalr);
 Ip_u1(_jr);
 Ip_u2s3u1(_lb);
+Ip_u2s3u1(_lbu);
 Ip_u2s3u1(_ld);
 Ip_u3u1u2(_ldx);
 Ip_u2s3u1(_lh);
@@ -112,27 +125,35 @@ Ip_u2s3u1(_ll);
 Ip_u2s3u1(_lld);
 Ip_u1s2(_lui);
 Ip_u2s3u1(_lw);
+Ip_u2s3u1(_lwu);
 Ip_u3u1u2(_lwx);
 Ip_u1u2u3(_mfc0);
 Ip_u1u2u3(_mfhc0);
 Ip_u1(_mfhi);
 Ip_u1(_mflo);
+Ip_u3u1u2(_movn);
+Ip_u3u1u2(_movz);
 Ip_u1u2u3(_mtc0);
 Ip_u1u2u3(_mthc0);
 Ip_u1(_mthi);
 Ip_u1(_mtlo);
 Ip_u3u1u2(_mul);
+Ip_u1u2(_multu);
+Ip_u3u1u2(_nor);
 Ip_u3u1u2(_or);
 Ip_u2u1u3(_ori);
 Ip_u2s3u1(_pref);
 Ip_0(_rfe);
 Ip_u2u1u3(_rotr);
+Ip_u2s3u1(_sb);
 Ip_u2s3u1(_sc);
 Ip_u2s3u1(_scd);
 Ip_u2s3u1(_sd);
+Ip_u2s3u1(_sh);
 Ip_u2u1u3(_sll);
 Ip_u3u2u1(_sllv);
 Ip_s3s1s2(_slt);
+Ip_u2u1s3(_slti);
 Ip_u2u1s3(_sltiu);
 Ip_u3u1u2(_sltu);
 Ip_u2u1u3(_sra);
@@ -248,6 +269,15 @@ static inline void uasm_i_dsrl_safe(u32 **p, unsigned int a1,
 		uasm_i_dsrl32(p, a1, a2, a3 - 32);
 }
 
+static inline void uasm_i_dsra_safe(u32 **p, unsigned int a1,
+				    unsigned int a2, unsigned int a3)
+{
+	if (a3 < 32)
+		uasm_i_dsra(p, a1, a2, a3);
+	else
+		uasm_i_dsra32(p, a1, a2, a3 - 32);
+}
+
 /* Handle relocations. */
 struct uasm_reloc {
 	u32 *addr;
diff --git a/arch/mips/include/asm/vdso.h b/arch/mips/include/asm/vdso.h
index 8f4ca5dd992b..b7cd6cf77b83 100644
--- a/arch/mips/include/asm/vdso.h
+++ b/arch/mips/include/asm/vdso.h
@@ -79,8 +79,8 @@ union mips_vdso_data {
 	struct {
 		u64 xtime_sec;
 		u64 xtime_nsec;
-		u32 wall_to_mono_sec;
-		u32 wall_to_mono_nsec;
+		u64 wall_to_mono_sec;
+		u64 wall_to_mono_nsec;
 		u32 seq_count;
 		u32 cs_shift;
 		u8 clock_mode;
diff --git a/arch/mips/include/asm/yamon-dt.h b/arch/mips/include/asm/yamon-dt.h
new file mode 100644
index 000000000000..485cfe3e45e1
--- /dev/null
+++ b/arch/mips/include/asm/yamon-dt.h
@@ -0,0 +1,64 @@
+/*
+ * Copyright (C) 2016 Imagination Technologies
+ * Author: Paul Burton <paul.burton@imgtec.com>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation;  either version 2 of the  License, or (at your
+ * option) any later version.
+ */
+
+#ifndef __MIPS_ASM_YAMON_DT_H__
+#define __MIPS_ASM_YAMON_DT_H__
+
+#include <linux/types.h>
+
+/**
+ * struct yamon_mem_region - Represents a contiguous range of physical RAM.
+ * @start:	Start physical address.
+ * @size:	Maximum size of region.
+ * @discard:	Length of additional memory to discard after the region.
+ */
+struct yamon_mem_region {
+	phys_addr_t	start;
+	phys_addr_t	size;
+	phys_addr_t	discard;
+};
+
+/**
+ * yamon_dt_append_cmdline() - Append YAMON-provided command line to /chosen
+ * @fdt: the FDT blob
+ *
+ * Write the YAMON-provided command line to the bootargs property of the
+ * /chosen node in @fdt.
+ *
+ * Return: 0 on success, else -errno
+ */
+extern __init int yamon_dt_append_cmdline(void *fdt);
+
+/**
+ * yamon_dt_append_memory() - Append YAMON-provided memory info to /memory
+ * @fdt:	the FDT blob
+ * @regions:	zero size terminated array of physical memory regions
+ *
+ * Generate a /memory node in @fdt based upon memory size information provided
+ * by YAMON in its environment and the @regions array.
+ *
+ * Return: 0 on success, else -errno
+ */
+extern __init int yamon_dt_append_memory(void *fdt,
+					const struct yamon_mem_region *regions);
+
+/**
+ * yamon_dt_serial_config() - Append YAMON-provided serial config to /chosen
+ * @fdt: the FDT blob
+ *
+ * Generate a stdout-path property in the /chosen node of @fdt, based upon
+ * information provided in the YAMON environment about the UART configuration
+ * of the system.
+ *
+ * Return: 0 on success, else -errno
+ */
+extern __init int yamon_dt_serial_config(void *fdt);
+
+#endif /* __MIPS_ASM_YAMON_DT_H__ */
diff --git a/arch/mips/include/uapi/asm/inst.h b/arch/mips/include/uapi/asm/inst.h
index b5e46ae872d3..d61897535926 100644
--- a/arch/mips/include/uapi/asm/inst.h
+++ b/arch/mips/include/uapi/asm/inst.h
@@ -276,12 +276,19 @@ enum lx_func {
  */
 enum bshfl_func {
 	wsbh_op = 0x2,
-	dshd_op = 0x5,
 	seb_op  = 0x10,
 	seh_op  = 0x18,
 };
 
 /*
+ * DBSHFL opcodes
+ */
+enum dbshfl_func {
+	dsbh_op = 0x2,
+	dshd_op = 0x5,
+};
+
+/*
  * MSA minor opcodes.
  */
 enum msa_func {
@@ -755,6 +762,16 @@ struct msa_mi10_format {		/* MSA MI10 */
 	;))))))
 };
 
+struct dsp_format {		/* SPEC3 DSP format instructions */
+	__BITFIELD_FIELD(unsigned int opcode : 6,
+	__BITFIELD_FIELD(unsigned int base : 5,
+	__BITFIELD_FIELD(unsigned int index : 5,
+	__BITFIELD_FIELD(unsigned int rd : 5,
+	__BITFIELD_FIELD(unsigned int op : 5,
+	__BITFIELD_FIELD(unsigned int func : 6,
+	;))))))
+};
+
 struct spec3_format {   /* SPEC3 */
 	__BITFIELD_FIELD(unsigned int opcode:6,
 	__BITFIELD_FIELD(unsigned int rs:5,
@@ -1046,6 +1063,7 @@ union mips_instruction {
 	struct b_format b_format;
 	struct ps_format ps_format;
 	struct v_format v_format;
+	struct dsp_format dsp_format;
 	struct spec3_format spec3_format;
 	struct fb_format fb_format;
 	struct fp0_format fp0_format;
diff --git a/arch/mips/include/uapi/asm/ioctls.h b/arch/mips/include/uapi/asm/ioctls.h
index 68e19b689a00..1609cb0907ac 100644
--- a/arch/mips/include/uapi/asm/ioctls.h
+++ b/arch/mips/include/uapi/asm/ioctls.h
@@ -91,7 +91,7 @@
 #define TIOCGPKT	_IOR('T', 0x38, int) /* Get packet mode state */
 #define TIOCGPTLCK	_IOR('T', 0x39, int) /* Get Pty lock state */
 #define TIOCGEXCL	_IOR('T', 0x40, int) /* Get exclusive mode state */
-#define TIOCGPTPEER	_IOR('T', 0x41, int) /* Safely open the slave */
+#define TIOCGPTPEER	_IO('T', 0x41) /* Safely open the slave */
 
 /* I hope the range from 0x5480 on is free ... */
 #define TIOCSCTTY	0x5480		/* become controlling tty */
diff --git a/arch/mips/kernel/Makefile b/arch/mips/kernel/Makefile
index 9a0e37b92ce0..46c0581256f1 100644
--- a/arch/mips/kernel/Makefile
+++ b/arch/mips/kernel/Makefile
@@ -4,7 +4,7 @@
 
 extra-y		:= head.o vmlinux.lds
 
-obj-y		+= cpu-probe.o branch.o elf.o entry.o genex.o idle.o irq.o \
+obj-y		+= cmpxchg.o cpu-probe.o branch.o elf.o entry.o genex.o idle.o irq.o \
 		   process.o prom.o ptrace.o reset.o setup.o signal.o \
 		   syscall.o time.o topology.o traps.o unaligned.o watch.o \
 		   vdso.o cacheinfo.o
@@ -31,7 +31,6 @@ obj-$(CONFIG_SYNC_R4K)		+= sync-r4k.o
 obj-$(CONFIG_DEBUG_FS)		+= segment.o
 obj-$(CONFIG_STACKTRACE)	+= stacktrace.o
 obj-$(CONFIG_MODULES)		+= module.o
-obj-$(CONFIG_MODULES_USE_ELF_RELA) += module-rela.o
 
 obj-$(CONFIG_FTRACE_SYSCALLS)	+= ftrace.o
 obj-$(CONFIG_FUNCTION_TRACER)	+= mcount.o ftrace.o
diff --git a/arch/mips/kernel/branch.c b/arch/mips/kernel/branch.c
index f702a459a830..b79ed9af9886 100644
--- a/arch/mips/kernel/branch.c
+++ b/arch/mips/kernel/branch.c
@@ -399,7 +399,7 @@ int __MIPS16e_compute_return_epc(struct pt_regs *regs)
  *
  * @regs:	Pointer to pt_regs
  * @insn:	branch instruction to decode
- * @returns:	-EFAULT on error and forces SIGBUS, and on success
+ * @returns:	-EFAULT on error and forces SIGILL, and on success
  *		returns 0 or BRANCH_LIKELY_TAKEN as appropriate after
  *		evaluating the branch.
  *
@@ -431,7 +431,7 @@ int __compute_return_epc_for_insn(struct pt_regs *regs,
 			/* Fall through */
 		case jr_op:
 			if (NO_R6EMU && insn.r_format.func == jr_op)
-				goto sigill_r6;
+				goto sigill_r2r6;
 			regs->cp0_epc = regs->regs[insn.r_format.rs];
 			break;
 		}
@@ -446,7 +446,7 @@ int __compute_return_epc_for_insn(struct pt_regs *regs,
 		switch (insn.i_format.rt) {
 		case bltzl_op:
 			if (NO_R6EMU)
-				goto sigill_r6;
+				goto sigill_r2r6;
 		case bltz_op:
 			if ((long)regs->regs[insn.i_format.rs] < 0) {
 				epc = epc + 4 + (insn.i_format.simmediate << 2);
@@ -459,7 +459,7 @@ int __compute_return_epc_for_insn(struct pt_regs *regs,
 
 		case bgezl_op:
 			if (NO_R6EMU)
-				goto sigill_r6;
+				goto sigill_r2r6;
 		case bgez_op:
 			if ((long)regs->regs[insn.i_format.rs] >= 0) {
 				epc = epc + 4 + (insn.i_format.simmediate << 2);
@@ -473,10 +473,8 @@ int __compute_return_epc_for_insn(struct pt_regs *regs,
 		case bltzal_op:
 		case bltzall_op:
 			if (NO_R6EMU && (insn.i_format.rs ||
-			    insn.i_format.rt == bltzall_op)) {
-				ret = -SIGILL;
-				break;
-			}
+			    insn.i_format.rt == bltzall_op))
+				goto sigill_r2r6;
 			regs->regs[31] = epc + 8;
 			/*
 			 * OK we are here either because we hit a NAL
@@ -507,10 +505,8 @@ int __compute_return_epc_for_insn(struct pt_regs *regs,
 		case bgezal_op:
 		case bgezall_op:
 			if (NO_R6EMU && (insn.i_format.rs ||
-			    insn.i_format.rt == bgezall_op)) {
-				ret = -SIGILL;
-				break;
-			}
+			    insn.i_format.rt == bgezall_op))
+				goto sigill_r2r6;
 			regs->regs[31] = epc + 8;
 			/*
 			 * OK we are here either because we hit a BAL
@@ -556,6 +552,7 @@ int __compute_return_epc_for_insn(struct pt_regs *regs,
 	/*
 	 * These are unconditional and in j_format.
 	 */
+	case jalx_op:
 	case jal_op:
 		regs->regs[31] = regs->cp0_epc + 8;
 	case j_op:
@@ -573,7 +570,7 @@ int __compute_return_epc_for_insn(struct pt_regs *regs,
 	 */
 	case beql_op:
 		if (NO_R6EMU)
-			goto sigill_r6;
+			goto sigill_r2r6;
 	case beq_op:
 		if (regs->regs[insn.i_format.rs] ==
 		    regs->regs[insn.i_format.rt]) {
@@ -587,7 +584,7 @@ int __compute_return_epc_for_insn(struct pt_regs *regs,
 
 	case bnel_op:
 		if (NO_R6EMU)
-			goto sigill_r6;
+			goto sigill_r2r6;
 	case bne_op:
 		if (regs->regs[insn.i_format.rs] !=
 		    regs->regs[insn.i_format.rt]) {
@@ -601,7 +598,7 @@ int __compute_return_epc_for_insn(struct pt_regs *regs,
 
 	case blezl_op: /* not really i_format */
 		if (!insn.i_format.rt && NO_R6EMU)
-			goto sigill_r6;
+			goto sigill_r2r6;
 	case blez_op:
 		/*
 		 * Compact branches for R6 for the
@@ -636,7 +633,7 @@ int __compute_return_epc_for_insn(struct pt_regs *regs,
 
 	case bgtzl_op:
 		if (!insn.i_format.rt && NO_R6EMU)
-			goto sigill_r6;
+			goto sigill_r2r6;
 	case bgtz_op:
 		/*
 		 * Compact branches for R6 for the
@@ -774,35 +771,27 @@ int __compute_return_epc_for_insn(struct pt_regs *regs,
 #else
 	case bc6_op:
 		/* Only valid for MIPS R6 */
-		if (!cpu_has_mips_r6) {
-			ret = -SIGILL;
-			break;
-		}
+		if (!cpu_has_mips_r6)
+			goto sigill_r6;
 		regs->cp0_epc += 8;
 		break;
 	case balc6_op:
-		if (!cpu_has_mips_r6) {
-			ret = -SIGILL;
-			break;
-		}
+		if (!cpu_has_mips_r6)
+			goto sigill_r6;
 		/* Compact branch: BALC */
 		regs->regs[31] = epc + 4;
 		epc += 4 + (insn.i_format.simmediate << 2);
 		regs->cp0_epc = epc;
 		break;
 	case pop66_op:
-		if (!cpu_has_mips_r6) {
-			ret = -SIGILL;
-			break;
-		}
+		if (!cpu_has_mips_r6)
+			goto sigill_r6;
 		/* Compact branch: BEQZC || JIC */
 		regs->cp0_epc += 8;
 		break;
 	case pop76_op:
-		if (!cpu_has_mips_r6) {
-			ret = -SIGILL;
-			break;
-		}
+		if (!cpu_has_mips_r6)
+			goto sigill_r6;
 		/* Compact branch: BNEZC || JIALC */
 		if (!insn.i_format.rs) {
 			/* JIALC: set $31/ra */
@@ -814,10 +803,8 @@ int __compute_return_epc_for_insn(struct pt_regs *regs,
 	case pop10_op:
 	case pop30_op:
 		/* Only valid for MIPS R6 */
-		if (!cpu_has_mips_r6) {
-			ret = -SIGILL;
-			break;
-		}
+		if (!cpu_has_mips_r6)
+			goto sigill_r6;
 		/*
 		 * Compact branches:
 		 * bovc, beqc, beqzalc, bnvc, bnec, bnezlac
@@ -831,12 +818,18 @@ int __compute_return_epc_for_insn(struct pt_regs *regs,
 	return ret;
 
 sigill_dsp:
-	printk("%s: DSP branch but not DSP ASE - sending SIGBUS.\n", current->comm);
-	force_sig(SIGBUS, current);
+	pr_debug("%s: DSP branch but not DSP ASE - sending SIGILL.\n",
+		 current->comm);
+	force_sig(SIGILL, current);
+	return -EFAULT;
+sigill_r2r6:
+	pr_debug("%s: R2 branch but r2-to-r6 emulator is not present - sending SIGILL.\n",
+		 current->comm);
+	force_sig(SIGILL, current);
 	return -EFAULT;
 sigill_r6:
-	pr_info("%s: R2 branch but r2-to-r6 emulator is not preset - sending SIGILL.\n",
-		current->comm);
+	pr_debug("%s: R6 branch but no MIPSr6 ISA support - sending SIGILL.\n",
+		 current->comm);
 	force_sig(SIGILL, current);
 	return -EFAULT;
 }
diff --git a/arch/mips/kernel/cmpxchg.c b/arch/mips/kernel/cmpxchg.c
new file mode 100644
index 000000000000..7730f1d3434f
--- /dev/null
+++ b/arch/mips/kernel/cmpxchg.c
@@ -0,0 +1,109 @@
+/*
+ * Copyright (C) 2017 Imagination Technologies
+ * Author: Paul Burton <paul.burton@imgtec.com>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation;  either version 2 of the  License, or (at your
+ * option) any later version.
+ */
+
+#include <linux/bitops.h>
+#include <asm/cmpxchg.h>
+
+unsigned long __xchg_small(volatile void *ptr, unsigned long val, unsigned int size)
+{
+	u32 old32, new32, load32, mask;
+	volatile u32 *ptr32;
+	unsigned int shift;
+
+	/* Check that ptr is naturally aligned */
+	WARN_ON((unsigned long)ptr & (size - 1));
+
+	/* Mask value to the correct size. */
+	mask = GENMASK((size * BITS_PER_BYTE) - 1, 0);
+	val &= mask;
+
+	/*
+	 * Calculate a shift & mask that correspond to the value we wish to
+	 * exchange within the naturally aligned 4 byte integerthat includes
+	 * it.
+	 */
+	shift = (unsigned long)ptr & 0x3;
+	if (IS_ENABLED(CONFIG_CPU_BIG_ENDIAN))
+		shift ^= sizeof(u32) - size;
+	shift *= BITS_PER_BYTE;
+	mask <<= shift;
+
+	/*
+	 * Calculate a pointer to the naturally aligned 4 byte integer that
+	 * includes our byte of interest, and load its value.
+	 */
+	ptr32 = (volatile u32 *)((unsigned long)ptr & ~0x3);
+	load32 = *ptr32;
+
+	do {
+		old32 = load32;
+		new32 = (load32 & ~mask) | (val << shift);
+		load32 = cmpxchg(ptr32, old32, new32);
+	} while (load32 != old32);
+
+	return (load32 & mask) >> shift;
+}
+
+unsigned long __cmpxchg_small(volatile void *ptr, unsigned long old,
+			      unsigned long new, unsigned int size)
+{
+	u32 mask, old32, new32, load32;
+	volatile u32 *ptr32;
+	unsigned int shift;
+	u8 load;
+
+	/* Check that ptr is naturally aligned */
+	WARN_ON((unsigned long)ptr & (size - 1));
+
+	/* Mask inputs to the correct size. */
+	mask = GENMASK((size * BITS_PER_BYTE) - 1, 0);
+	old &= mask;
+	new &= mask;
+
+	/*
+	 * Calculate a shift & mask that correspond to the value we wish to
+	 * compare & exchange within the naturally aligned 4 byte integer
+	 * that includes it.
+	 */
+	shift = (unsigned long)ptr & 0x3;
+	if (IS_ENABLED(CONFIG_CPU_BIG_ENDIAN))
+		shift ^= sizeof(u32) - size;
+	shift *= BITS_PER_BYTE;
+	mask <<= shift;
+
+	/*
+	 * Calculate a pointer to the naturally aligned 4 byte integer that
+	 * includes our byte of interest, and load its value.
+	 */
+	ptr32 = (volatile u32 *)((unsigned long)ptr & ~0x3);
+	load32 = *ptr32;
+
+	while (true) {
+		/*
+		 * Ensure the byte we want to exchange matches the expected
+		 * old value, and if not then bail.
+		 */
+		load = (load32 & mask) >> shift;
+		if (load != old)
+			return load;
+
+		/*
+		 * Calculate the old & new values of the naturally aligned
+		 * 4 byte integer that include the byte we want to exchange.
+		 * Attempt to exchange the old value for the new value, and
+		 * return if we succeed.
+		 */
+		old32 = (load32 & ~mask) | (old << shift);
+		new32 = (load32 & ~mask) | (new << shift);
+		load32 = cmpxchg(ptr32, old32, new32);
+		if (load32 == old32)
+			return old;
+	}
+}
diff --git a/arch/mips/kernel/cps-vec.S b/arch/mips/kernel/cps-vec.S
index a00e87b0256d..b849fe6aad94 100644
--- a/arch/mips/kernel/cps-vec.S
+++ b/arch/mips/kernel/cps-vec.S
@@ -22,6 +22,7 @@
 #define GCR_CL_COHERENCE_OFS	0x2008
 #define GCR_CL_ID_OFS		0x2028
 
+#define CPC_CL_VC_STOP_OFS	0x2020
 #define CPC_CL_VC_RUN_OFS	0x2028
 
 .extern mips_cm_base
@@ -376,8 +377,12 @@ LEAF(mips_cps_boot_vpes)
 	PTR_LI	t2, UNCAC_BASE
 	PTR_ADD	t1, t1, t2
 
-	/* Set VC_RUN to the VPE mask */
+	/* Start any other VPs that ought to be running */
 	PTR_S	ta2, CPC_CL_VC_RUN_OFS(t1)
+
+	/* Ensure this VP stops running if it shouldn't be */
+	not	ta2
+	PTR_S	ta2, CPC_CL_VC_STOP_OFS(t1)
 	ehb
 
 #elif defined(CONFIG_MIPS_MT)
diff --git a/arch/mips/kernel/cpu-probe.c b/arch/mips/kernel/cpu-probe.c
index 1aba27786bd5..d08afc7dc507 100644
--- a/arch/mips/kernel/cpu-probe.c
+++ b/arch/mips/kernel/cpu-probe.c
@@ -564,6 +564,7 @@ static int set_ftlb_enable(struct cpuinfo_mips *c, enum ftlb_flags flags)
 		back_to_back_c0_hazard();
 		break;
 	case CPU_I6400:
+	case CPU_I6500:
 		/* There's no way to disable the FTLB */
 		if (!(flags & FTLB_EN))
 			return 1;
@@ -844,6 +845,8 @@ static inline unsigned int decode_config5(struct cpuinfo_mips *c)
 		c->options |= MIPS_CPU_MVH;
 	if (cpu_has_mips_r6 && (config5 & MIPS_CONF5_VP))
 		c->options |= MIPS_CPU_VP;
+	if (config5 & MIPS_CONF5_CA2)
+		c->ases |= MIPS_ASE_MIPS16E2;
 
 	return config5 & MIPS_CONF_M;
 }
@@ -1635,6 +1638,10 @@ static inline void cpu_probe_mips(struct cpuinfo_mips *c, unsigned int cpu)
 		c->cputype = CPU_I6400;
 		__cpu_name[cpu] = "MIPS I6400";
 		break;
+	case PRID_IMP_I6500:
+		c->cputype = CPU_I6500;
+		__cpu_name[cpu] = "MIPS I6500";
+		break;
 	case PRID_IMP_M5150:
 		c->cputype = CPU_M5150;
 		__cpu_name[cpu] = "MIPS M5150";
@@ -1648,6 +1655,17 @@ static inline void cpu_probe_mips(struct cpuinfo_mips *c, unsigned int cpu)
 	decode_configs(c);
 
 	spram_config();
+
+	switch (__get_cpu_type(c->cputype)) {
+	case CPU_I6500:
+		c->options |= MIPS_CPU_SHARED_FTLB_ENTRIES;
+		/* fall-through */
+	case CPU_I6400:
+		c->options |= MIPS_CPU_SHARED_FTLB_RAM;
+		/* fall-through */
+	default:
+		break;
+	}
 }
 
 static inline void cpu_probe_alchemy(struct cpuinfo_mips *c, unsigned int cpu)
@@ -1831,6 +1849,12 @@ static inline void cpu_probe_loongson(struct cpuinfo_mips *c, unsigned int cpu)
 			set_elf_platform(cpu, "loongson3a");
 			set_isa(c, MIPS_CPU_ISA_M64R2);
 			break;
+		case PRID_REV_LOONGSON3A_R3:
+			c->cputype = CPU_LOONGSON3;
+			__cpu_name[cpu] = "ICT Loongson-3";
+			set_elf_platform(cpu, "loongson3a");
+			set_isa(c, MIPS_CPU_ISA_M64R2);
+			break;
 		}
 
 		decode_configs(c);
diff --git a/arch/mips/kernel/mips-cm.c b/arch/mips/kernel/mips-cm.c
index 659e6d3ae335..cb0c57f860d4 100644
--- a/arch/mips/kernel/mips-cm.c
+++ b/arch/mips/kernel/mips-cm.c
@@ -265,15 +265,34 @@ void mips_cm_lock_other(unsigned int core, unsigned int vp)
 	u32 val;
 
 	preempt_disable();
-	curr_core = current_cpu_data.core;
-	spin_lock_irqsave(&per_cpu(cm_core_lock, curr_core),
-			  per_cpu(cm_core_lock_flags, curr_core));
 
 	if (mips_cm_revision() >= CM_REV_CM3) {
 		val = core << CM3_GCR_Cx_OTHER_CORE_SHF;
 		val |= vp << CM3_GCR_Cx_OTHER_VP_SHF;
+
+		/*
+		 * We need to disable interrupts in SMP systems in order to
+		 * ensure that we don't interrupt the caller with code which
+		 * may modify the redirect register. We do so here in a
+		 * slightly obscure way by using a spin lock, since this has
+		 * the neat property of also catching any nested uses of
+		 * mips_cm_lock_other() leading to a deadlock or a nice warning
+		 * with lockdep enabled.
+		 */
+		spin_lock_irqsave(this_cpu_ptr(&cm_core_lock),
+				  *this_cpu_ptr(&cm_core_lock_flags));
 	} else {
-		BUG_ON(vp != 0);
+		WARN_ON(vp != 0);
+
+		/*
+		 * We only have a GCR_CL_OTHER per core in systems with
+		 * CM 2.5 & older, so have to ensure other VP(E)s don't
+		 * race with us.
+		 */
+		curr_core = current_cpu_data.core;
+		spin_lock_irqsave(&per_cpu(cm_core_lock, curr_core),
+				  per_cpu(cm_core_lock_flags, curr_core));
+
 		val = core << CM_GCR_Cx_OTHER_CORENUM_SHF;
 	}
 
@@ -288,10 +307,17 @@ void mips_cm_lock_other(unsigned int core, unsigned int vp)
 
 void mips_cm_unlock_other(void)
 {
-	unsigned curr_core = current_cpu_data.core;
+	unsigned int curr_core;
+
+	if (mips_cm_revision() < CM_REV_CM3) {
+		curr_core = current_cpu_data.core;
+		spin_unlock_irqrestore(&per_cpu(cm_core_lock, curr_core),
+				       per_cpu(cm_core_lock_flags, curr_core));
+	} else {
+		spin_unlock_irqrestore(this_cpu_ptr(&cm_core_lock),
+				       *this_cpu_ptr(&cm_core_lock_flags));
+	}
 
-	spin_unlock_irqrestore(&per_cpu(cm_core_lock, curr_core),
-			       per_cpu(cm_core_lock_flags, curr_core));
 	preempt_enable();
 }
 
diff --git a/arch/mips/kernel/module-rela.c b/arch/mips/kernel/module-rela.c
deleted file mode 100644
index 781168834456..000000000000
--- a/arch/mips/kernel/module-rela.c
+++ /dev/null
@@ -1,202 +0,0 @@
-/*
- *  This program is free software; you can redistribute it and/or modify
- *  it under the terms of the GNU General Public License as published by
- *  the Free Software Foundation; either version 2 of the License, or
- *  (at your option) any later version.
- *
- *  This program is distributed in the hope that it will be useful,
- *  but WITHOUT ANY WARRANTY; without even the implied warranty of
- *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- *  GNU General Public License for more details.
- *
- *  You should have received a copy of the GNU General Public License
- *  along with this program; if not, write to the Free Software
- *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
- *
- *  Copyright (C) 2001 Rusty Russell.
- *  Copyright (C) 2003, 2004 Ralf Baechle (ralf@linux-mips.org)
- *  Copyright (C) 2005 Thiemo Seufer
- *  Copyright (C) 2015 Imagination Technologies Ltd.
- */
-
-#include <linux/elf.h>
-#include <linux/err.h>
-#include <linux/errno.h>
-#include <linux/moduleloader.h>
-
-extern int apply_r_mips_none(struct module *me, u32 *location, Elf_Addr v);
-
-static int apply_r_mips_32_rela(struct module *me, u32 *location, Elf_Addr v)
-{
-	*location = v;
-
-	return 0;
-}
-
-static int apply_r_mips_26_rela(struct module *me, u32 *location, Elf_Addr v)
-{
-	if (v % 4) {
-		pr_err("module %s: dangerous R_MIPS_26 RELA relocation\n",
-		       me->name);
-		return -ENOEXEC;
-	}
-
-	if ((v & 0xf0000000) != (((unsigned long)location + 4) & 0xf0000000)) {
-		pr_err("module %s: relocation overflow\n", me->name);
-		return -ENOEXEC;
-	}
-
-	*location = (*location & ~0x03ffffff) | ((v >> 2) & 0x03ffffff);
-
-	return 0;
-}
-
-static int apply_r_mips_hi16_rela(struct module *me, u32 *location, Elf_Addr v)
-{
-	*location = (*location & 0xffff0000) |
-		    ((((long long) v + 0x8000LL) >> 16) & 0xffff);
-
-	return 0;
-}
-
-static int apply_r_mips_lo16_rela(struct module *me, u32 *location, Elf_Addr v)
-{
-	*location = (*location & 0xffff0000) | (v & 0xffff);
-
-	return 0;
-}
-
-static int apply_r_mips_pc_rela(struct module *me, u32 *location, Elf_Addr v,
-				unsigned bits)
-{
-	unsigned long mask = GENMASK(bits - 1, 0);
-	unsigned long se_bits;
-	long offset;
-
-	if (v % 4) {
-		pr_err("module %s: dangerous R_MIPS_PC%u RELA relocation\n",
-		       me->name, bits);
-		return -ENOEXEC;
-	}
-
-	offset = ((long)v - (long)location) >> 2;
-
-	/* check the sign bit onwards are identical - ie. we didn't overflow */
-	se_bits = (offset & BIT(bits - 1)) ? ~0ul : 0;
-	if ((offset & ~mask) != (se_bits & ~mask)) {
-		pr_err("module %s: relocation overflow\n", me->name);
-		return -ENOEXEC;
-	}
-
-	*location = (*location & ~mask) | (offset & mask);
-
-	return 0;
-}
-
-static int apply_r_mips_pc16_rela(struct module *me, u32 *location, Elf_Addr v)
-{
-	return apply_r_mips_pc_rela(me, location, v, 16);
-}
-
-static int apply_r_mips_pc21_rela(struct module *me, u32 *location, Elf_Addr v)
-{
-	return apply_r_mips_pc_rela(me, location, v, 21);
-}
-
-static int apply_r_mips_pc26_rela(struct module *me, u32 *location, Elf_Addr v)
-{
-	return apply_r_mips_pc_rela(me, location, v, 26);
-}
-
-static int apply_r_mips_64_rela(struct module *me, u32 *location, Elf_Addr v)
-{
-	*(Elf_Addr *)location = v;
-
-	return 0;
-}
-
-static int apply_r_mips_higher_rela(struct module *me, u32 *location,
-				    Elf_Addr v)
-{
-	*location = (*location & 0xffff0000) |
-		    ((((long long) v + 0x80008000LL) >> 32) & 0xffff);
-
-	return 0;
-}
-
-static int apply_r_mips_highest_rela(struct module *me, u32 *location,
-				     Elf_Addr v)
-{
-	*location = (*location & 0xffff0000) |
-		    ((((long long) v + 0x800080008000LL) >> 48) & 0xffff);
-
-	return 0;
-}
-
-static int (*reloc_handlers_rela[]) (struct module *me, u32 *location,
-				Elf_Addr v) = {
-	[R_MIPS_NONE]		= apply_r_mips_none,
-	[R_MIPS_32]		= apply_r_mips_32_rela,
-	[R_MIPS_26]		= apply_r_mips_26_rela,
-	[R_MIPS_HI16]		= apply_r_mips_hi16_rela,
-	[R_MIPS_LO16]		= apply_r_mips_lo16_rela,
-	[R_MIPS_PC16]		= apply_r_mips_pc16_rela,
-	[R_MIPS_64]		= apply_r_mips_64_rela,
-	[R_MIPS_HIGHER]		= apply_r_mips_higher_rela,
-	[R_MIPS_HIGHEST]	= apply_r_mips_highest_rela,
-	[R_MIPS_PC21_S2]	= apply_r_mips_pc21_rela,
-	[R_MIPS_PC26_S2]	= apply_r_mips_pc26_rela,
-};
-
-int apply_relocate_add(Elf_Shdr *sechdrs, const char *strtab,
-		       unsigned int symindex, unsigned int relsec,
-		       struct module *me)
-{
-	Elf_Mips_Rela *rel = (void *) sechdrs[relsec].sh_addr;
-	int (*handler)(struct module *me, u32 *location, Elf_Addr v);
-	Elf_Sym *sym;
-	u32 *location;
-	unsigned int i, type;
-	Elf_Addr v;
-	int res;
-
-	pr_debug("Applying relocate section %u to %u\n", relsec,
-	       sechdrs[relsec].sh_info);
-
-	for (i = 0; i < sechdrs[relsec].sh_size / sizeof(*rel); i++) {
-		/* This is where to make the change */
-		location = (void *)sechdrs[sechdrs[relsec].sh_info].sh_addr
-			+ rel[i].r_offset;
-		/* This is the symbol it is referring to */
-		sym = (Elf_Sym *)sechdrs[symindex].sh_addr
-			+ ELF_MIPS_R_SYM(rel[i]);
-		if (sym->st_value >= -MAX_ERRNO) {
-			/* Ignore unresolved weak symbol */
-			if (ELF_ST_BIND(sym->st_info) == STB_WEAK)
-				continue;
-			pr_warn("%s: Unknown symbol %s\n",
-			       me->name, strtab + sym->st_name);
-			return -ENOENT;
-		}
-
-		type = ELF_MIPS_R_TYPE(rel[i]);
-
-		if (type < ARRAY_SIZE(reloc_handlers_rela))
-			handler = reloc_handlers_rela[type];
-		else
-			handler = NULL;
-
-		if (!handler) {
-			pr_err("%s: Unknown relocation type %u\n",
-			       me->name, type);
-			return -EINVAL;
-		}
-
-		v = sym->st_value + rel[i].r_addend;
-		res = handler(me, location, v);
-		if (res)
-			return res;
-	}
-
-	return 0;
-}
diff --git a/arch/mips/kernel/module.c b/arch/mips/kernel/module.c
index 50c020c47e54..491605137b03 100644
--- a/arch/mips/kernel/module.c
+++ b/arch/mips/kernel/module.c
@@ -53,22 +53,25 @@ void *module_alloc(unsigned long size)
 }
 #endif
 
-int apply_r_mips_none(struct module *me, u32 *location, Elf_Addr v)
+static int apply_r_mips_none(struct module *me, u32 *location,
+			     u32 base, Elf_Addr v, bool rela)
 {
 	return 0;
 }
 
-static int apply_r_mips_32_rel(struct module *me, u32 *location, Elf_Addr v)
+static int apply_r_mips_32(struct module *me, u32 *location,
+			   u32 base, Elf_Addr v, bool rela)
 {
-	*location += v;
+	*location = base + v;
 
 	return 0;
 }
 
-static int apply_r_mips_26_rel(struct module *me, u32 *location, Elf_Addr v)
+static int apply_r_mips_26(struct module *me, u32 *location,
+			   u32 base, Elf_Addr v, bool rela)
 {
 	if (v % 4) {
-		pr_err("module %s: dangerous R_MIPS_26 REL relocation\n",
+		pr_err("module %s: dangerous R_MIPS_26 relocation\n",
 		       me->name);
 		return -ENOEXEC;
 	}
@@ -80,15 +83,22 @@ static int apply_r_mips_26_rel(struct module *me, u32 *location, Elf_Addr v)
 	}
 
 	*location = (*location & ~0x03ffffff) |
-		    ((*location + (v >> 2)) & 0x03ffffff);
+		    ((base + (v >> 2)) & 0x03ffffff);
 
 	return 0;
 }
 
-static int apply_r_mips_hi16_rel(struct module *me, u32 *location, Elf_Addr v)
+static int apply_r_mips_hi16(struct module *me, u32 *location,
+			     u32 base, Elf_Addr v, bool rela)
 {
 	struct mips_hi16 *n;
 
+	if (rela) {
+		*location = (*location & 0xffff0000) |
+			    ((((long long) v + 0x8000LL) >> 16) & 0xffff);
+		return 0;
+	}
+
 	/*
 	 * We cannot relocate this one now because we don't know the value of
 	 * the carry we need to add.  Save the information, and let LO16 do the
@@ -117,12 +127,18 @@ static void free_relocation_chain(struct mips_hi16 *l)
 	}
 }
 
-static int apply_r_mips_lo16_rel(struct module *me, u32 *location, Elf_Addr v)
+static int apply_r_mips_lo16(struct module *me, u32 *location,
+			     u32 base, Elf_Addr v, bool rela)
 {
-	unsigned long insnlo = *location;
+	unsigned long insnlo = base;
 	struct mips_hi16 *l;
 	Elf_Addr val, vallo;
 
+	if (rela) {
+		*location = (*location & 0xffff0000) | (v & 0xffff);
+		return 0;
+	}
+
 	/* Sign extend the addend we extract from the lo insn.	*/
 	vallo = ((insnlo & 0xffff) ^ 0x8000) - 0x8000;
 
@@ -178,26 +194,26 @@ out_danger:
 	free_relocation_chain(l);
 	me->arch.r_mips_hi16_list = NULL;
 
-	pr_err("module %s: dangerous R_MIPS_LO16 REL relocation\n", me->name);
+	pr_err("module %s: dangerous R_MIPS_LO16 relocation\n", me->name);
 
 	return -ENOEXEC;
 }
 
-static int apply_r_mips_pc_rel(struct module *me, u32 *location, Elf_Addr v,
-			       unsigned bits)
+static int apply_r_mips_pc(struct module *me, u32 *location, u32 base,
+			   Elf_Addr v, unsigned int bits)
 {
 	unsigned long mask = GENMASK(bits - 1, 0);
 	unsigned long se_bits;
 	long offset;
 
 	if (v % 4) {
-		pr_err("module %s: dangerous R_MIPS_PC%u REL relocation\n",
+		pr_err("module %s: dangerous R_MIPS_PC%u relocation\n",
 		       me->name, bits);
 		return -ENOEXEC;
 	}
 
-	/* retrieve & sign extend implicit addend */
-	offset = *location & mask;
+	/* retrieve & sign extend implicit addend if any */
+	offset = base & mask;
 	offset |= (offset & BIT(bits - 1)) ? ~mask : 0;
 
 	offset += ((long)v - (long)location) >> 2;
@@ -214,99 +230,192 @@ static int apply_r_mips_pc_rel(struct module *me, u32 *location, Elf_Addr v,
 	return 0;
 }
 
-static int apply_r_mips_pc16_rel(struct module *me, u32 *location, Elf_Addr v)
+static int apply_r_mips_pc16(struct module *me, u32 *location,
+			     u32 base, Elf_Addr v, bool rela)
+{
+	return apply_r_mips_pc(me, location, base, v, 16);
+}
+
+static int apply_r_mips_pc21(struct module *me, u32 *location,
+			     u32 base, Elf_Addr v, bool rela)
+{
+	return apply_r_mips_pc(me, location, base, v, 21);
+}
+
+static int apply_r_mips_pc26(struct module *me, u32 *location,
+			     u32 base, Elf_Addr v, bool rela)
+{
+	return apply_r_mips_pc(me, location, base, v, 26);
+}
+
+static int apply_r_mips_64(struct module *me, u32 *location,
+			   u32 base, Elf_Addr v, bool rela)
 {
-	return apply_r_mips_pc_rel(me, location, v, 16);
+	if (WARN_ON(!rela))
+		return -EINVAL;
+
+	*(Elf_Addr *)location = v;
+
+	return 0;
 }
 
-static int apply_r_mips_pc21_rel(struct module *me, u32 *location, Elf_Addr v)
+static int apply_r_mips_higher(struct module *me, u32 *location,
+			       u32 base, Elf_Addr v, bool rela)
 {
-	return apply_r_mips_pc_rel(me, location, v, 21);
+	if (WARN_ON(!rela))
+		return -EINVAL;
+
+	*location = (*location & 0xffff0000) |
+		    ((((long long)v + 0x80008000LL) >> 32) & 0xffff);
+
+	return 0;
 }
 
-static int apply_r_mips_pc26_rel(struct module *me, u32 *location, Elf_Addr v)
+static int apply_r_mips_highest(struct module *me, u32 *location,
+				u32 base, Elf_Addr v, bool rela)
 {
-	return apply_r_mips_pc_rel(me, location, v, 26);
+	if (WARN_ON(!rela))
+		return -EINVAL;
+
+	*location = (*location & 0xffff0000) |
+		    ((((long long)v + 0x800080008000LL) >> 48) & 0xffff);
+
+	return 0;
 }
 
-static int (*reloc_handlers_rel[]) (struct module *me, u32 *location,
-				Elf_Addr v) = {
+/**
+ * reloc_handler() - Apply a particular relocation to a module
+ * @me: the module to apply the reloc to
+ * @location: the address at which the reloc is to be applied
+ * @base: the existing value at location for REL-style; 0 for RELA-style
+ * @v: the value of the reloc, with addend for RELA-style
+ *
+ * Each implemented reloc_handler function applies a particular type of
+ * relocation to the module @me. Relocs that may be found in either REL or RELA
+ * variants can be handled by making use of the @base & @v parameters which are
+ * set to values which abstract the difference away from the particular reloc
+ * implementations.
+ *
+ * Return: 0 upon success, else -ERRNO
+ */
+typedef int (*reloc_handler)(struct module *me, u32 *location,
+			     u32 base, Elf_Addr v, bool rela);
+
+/* The handlers for known reloc types */
+static reloc_handler reloc_handlers[] = {
 	[R_MIPS_NONE]		= apply_r_mips_none,
-	[R_MIPS_32]		= apply_r_mips_32_rel,
-	[R_MIPS_26]		= apply_r_mips_26_rel,
-	[R_MIPS_HI16]		= apply_r_mips_hi16_rel,
-	[R_MIPS_LO16]		= apply_r_mips_lo16_rel,
-	[R_MIPS_PC16]		= apply_r_mips_pc16_rel,
-	[R_MIPS_PC21_S2]	= apply_r_mips_pc21_rel,
-	[R_MIPS_PC26_S2]	= apply_r_mips_pc26_rel,
+	[R_MIPS_32]		= apply_r_mips_32,
+	[R_MIPS_26]		= apply_r_mips_26,
+	[R_MIPS_HI16]		= apply_r_mips_hi16,
+	[R_MIPS_LO16]		= apply_r_mips_lo16,
+	[R_MIPS_PC16]		= apply_r_mips_pc16,
+	[R_MIPS_64]		= apply_r_mips_64,
+	[R_MIPS_HIGHER]		= apply_r_mips_higher,
+	[R_MIPS_HIGHEST]	= apply_r_mips_highest,
+	[R_MIPS_PC21_S2]	= apply_r_mips_pc21,
+	[R_MIPS_PC26_S2]	= apply_r_mips_pc26,
 };
 
-int apply_relocate(Elf_Shdr *sechdrs, const char *strtab,
-		   unsigned int symindex, unsigned int relsec,
-		   struct module *me)
+static int __apply_relocate(Elf_Shdr *sechdrs, const char *strtab,
+			    unsigned int symindex, unsigned int relsec,
+			    struct module *me, bool rela)
 {
-	Elf_Mips_Rel *rel = (void *) sechdrs[relsec].sh_addr;
-	int (*handler)(struct module *me, u32 *location, Elf_Addr v);
+	union {
+		Elf_Mips_Rel *rel;
+		Elf_Mips_Rela *rela;
+	} r;
+	reloc_handler handler;
 	Elf_Sym *sym;
-	u32 *location;
+	u32 *location, base;
 	unsigned int i, type;
 	Elf_Addr v;
-	int res;
+	int err = 0;
+	size_t reloc_sz;
 
 	pr_debug("Applying relocate section %u to %u\n", relsec,
 	       sechdrs[relsec].sh_info);
 
+	r.rel = (void *)sechdrs[relsec].sh_addr;
+	reloc_sz = rela ? sizeof(*r.rela) : sizeof(*r.rel);
 	me->arch.r_mips_hi16_list = NULL;
-	for (i = 0; i < sechdrs[relsec].sh_size / sizeof(*rel); i++) {
+	for (i = 0; i < sechdrs[relsec].sh_size / reloc_sz; i++) {
 		/* This is where to make the change */
 		location = (void *)sechdrs[sechdrs[relsec].sh_info].sh_addr
-			+ rel[i].r_offset;
+			+ r.rel->r_offset;
 		/* This is the symbol it is referring to */
 		sym = (Elf_Sym *)sechdrs[symindex].sh_addr
-			+ ELF_MIPS_R_SYM(rel[i]);
+			+ ELF_MIPS_R_SYM(*r.rel);
 		if (sym->st_value >= -MAX_ERRNO) {
 			/* Ignore unresolved weak symbol */
 			if (ELF_ST_BIND(sym->st_info) == STB_WEAK)
 				continue;
 			pr_warn("%s: Unknown symbol %s\n",
 				me->name, strtab + sym->st_name);
-			return -ENOENT;
+			err = -ENOENT;
+			goto out;
 		}
 
-		type = ELF_MIPS_R_TYPE(rel[i]);
-
-		if (type < ARRAY_SIZE(reloc_handlers_rel))
-			handler = reloc_handlers_rel[type];
+		type = ELF_MIPS_R_TYPE(*r.rel);
+		if (type < ARRAY_SIZE(reloc_handlers))
+			handler = reloc_handlers[type];
 		else
 			handler = NULL;
 
 		if (!handler) {
 			pr_err("%s: Unknown relocation type %u\n",
 			       me->name, type);
-			return -EINVAL;
+			err = -EINVAL;
+			goto out;
 		}
 
-		v = sym->st_value;
-		res = handler(me, location, v);
-		if (res)
-			return res;
+		if (rela) {
+			v = sym->st_value + r.rela->r_addend;
+			base = 0;
+			r.rela = &r.rela[1];
+		} else {
+			v = sym->st_value;
+			base = *location;
+			r.rel = &r.rel[1];
+		}
+
+		err = handler(me, location, base, v, rela);
+		if (err)
+			goto out;
 	}
 
+out:
 	/*
-	 * Normally the hi16 list should be deallocated at this point.	A
+	 * Normally the hi16 list should be deallocated at this point. A
 	 * malformed binary however could contain a series of R_MIPS_HI16
-	 * relocations not followed by a R_MIPS_LO16 relocation.  In that
-	 * case, free up the list and return an error.
+	 * relocations not followed by a R_MIPS_LO16 relocation, or if we hit
+	 * an error processing a reloc we might have gotten here before
+	 * reaching the R_MIPS_LO16. In either case, free up the list and
+	 * return an error.
 	 */
 	if (me->arch.r_mips_hi16_list) {
 		free_relocation_chain(me->arch.r_mips_hi16_list);
 		me->arch.r_mips_hi16_list = NULL;
-
-		return -ENOEXEC;
+		err = err ?: -ENOEXEC;
 	}
 
-	return 0;
+	return err;
+}
+
+int apply_relocate(Elf_Shdr *sechdrs, const char *strtab,
+		   unsigned int symindex, unsigned int relsec,
+		   struct module *me)
+{
+	return __apply_relocate(sechdrs, strtab, symindex, relsec, me, false);
+}
+
+#ifdef CONFIG_MODULES_USE_ELF_RELA
+int apply_relocate_add(Elf_Shdr *sechdrs, const char *strtab,
+		       unsigned int symindex, unsigned int relsec,
+		       struct module *me)
+{
+	return __apply_relocate(sechdrs, strtab, symindex, relsec, me, true);
 }
+#endif /* CONFIG_MODULES_USE_ELF_RELA */
 
 /* Given an address, look for it in the module exception tables. */
 const struct exception_table_entry *search_module_dbetables(unsigned long addr)
diff --git a/arch/mips/kernel/perf_event_mipsxx.c b/arch/mips/kernel/perf_event_mipsxx.c
index f3e301f95aef..9e6c74bf66c4 100644
--- a/arch/mips/kernel/perf_event_mipsxx.c
+++ b/arch/mips/kernel/perf_event_mipsxx.c
@@ -814,7 +814,7 @@ static const struct mips_perf_event mipsxxcore_event_map2
 	[PERF_COUNT_HW_BRANCH_MISSES] = { 0x27, CNTR_ODD, T },
 };
 
-static const struct mips_perf_event i6400_event_map[PERF_COUNT_HW_MAX] = {
+static const struct mips_perf_event i6x00_event_map[PERF_COUNT_HW_MAX] = {
 	[PERF_COUNT_HW_CPU_CYCLES]          = { 0x00, CNTR_EVEN | CNTR_ODD },
 	[PERF_COUNT_HW_INSTRUCTIONS]        = { 0x01, CNTR_EVEN | CNTR_ODD },
 	/* These only count dcache, not icache */
@@ -1014,7 +1014,7 @@ static const struct mips_perf_event mipsxxcore_cache_map2
 },
 };
 
-static const struct mips_perf_event i6400_cache_map
+static const struct mips_perf_event i6x00_cache_map
 				[PERF_COUNT_HW_CACHE_MAX]
 				[PERF_COUNT_HW_CACHE_OP_MAX]
 				[PERF_COUNT_HW_CACHE_RESULT_MAX] = {
@@ -1610,6 +1610,7 @@ static const struct mips_perf_event *mipsxx_pmu_map_raw_event(u64 config)
 #endif
 		break;
 	case CPU_I6400:
+	case CPU_I6500:
 		/* 8-bit event numbers */
 		base_id = config & 0xff;
 		raw_event.cntr_mask = CNTR_EVEN | CNTR_ODD;
@@ -1770,8 +1771,13 @@ init_hw_perf_events(void)
 		break;
 	case CPU_I6400:
 		mipspmu.name = "mips/I6400";
-		mipspmu.general_event_map = &i6400_event_map;
-		mipspmu.cache_event_map = &i6400_cache_map;
+		mipspmu.general_event_map = &i6x00_event_map;
+		mipspmu.cache_event_map = &i6x00_cache_map;
+		break;
+	case CPU_I6500:
+		mipspmu.name = "mips/I6500";
+		mipspmu.general_event_map = &i6x00_event_map;
+		mipspmu.cache_event_map = &i6x00_cache_map;
 		break;
 	case CPU_1004K:
 		mipspmu.name = "mips/1004K";
diff --git a/arch/mips/kernel/proc.c b/arch/mips/kernel/proc.c
index 4eff2aed7360..70604c753aa4 100644
--- a/arch/mips/kernel/proc.c
+++ b/arch/mips/kernel/proc.c
@@ -83,7 +83,7 @@ static int show_cpuinfo(struct seq_file *m, void *v)
 	}
 
 	seq_printf(m, "isa\t\t\t:"); 
-	if (cpu_has_mips_r1)
+	if (cpu_has_mips_1)
 		seq_printf(m, " mips1");
 	if (cpu_has_mips_2)
 		seq_printf(m, "%s", " mips2");
@@ -109,6 +109,7 @@ static int show_cpuinfo(struct seq_file *m, void *v)
 
 	seq_printf(m, "ASEs implemented\t:");
 	if (cpu_has_mips16)	seq_printf(m, "%s", " mips16");
+	if (cpu_has_mips16e2)	seq_printf(m, "%s", " mips16e2");
 	if (cpu_has_mdmx)	seq_printf(m, "%s", " mdmx");
 	if (cpu_has_mips3d)	seq_printf(m, "%s", " mips3d");
 	if (cpu_has_smartmips)	seq_printf(m, "%s", " smartmips");
diff --git a/arch/mips/kernel/ptrace.c b/arch/mips/kernel/ptrace.c
index 6931fe722a0b..6dd13641a418 100644
--- a/arch/mips/kernel/ptrace.c
+++ b/arch/mips/kernel/ptrace.c
@@ -868,14 +868,39 @@ asmlinkage long syscall_trace_enter(struct pt_regs *regs, long syscall)
 	    tracehook_report_syscall_entry(regs))
 		return -1;
 
-	if (secure_computing(NULL) == -1)
-		return -1;
+#ifdef CONFIG_SECCOMP
+	if (unlikely(test_thread_flag(TIF_SECCOMP))) {
+		int ret, i;
+		struct seccomp_data sd;
+
+		sd.nr = syscall;
+		sd.arch = syscall_get_arch();
+		for (i = 0; i < 6; i++) {
+			unsigned long v, r;
+
+			r = mips_get_syscall_arg(&v, current, regs, i);
+			sd.args[i] = r ? 0 : v;
+		}
+		sd.instruction_pointer = KSTK_EIP(current);
+
+		ret = __secure_computing(&sd);
+		if (ret == -1)
+			return ret;
+	}
+#endif
 
 	if (unlikely(test_thread_flag(TIF_SYSCALL_TRACEPOINT)))
 		trace_sys_enter(regs, regs->regs[2]);
 
 	audit_syscall_entry(syscall, regs->regs[4], regs->regs[5],
 			    regs->regs[6], regs->regs[7]);
+
+	/*
+	 * Negative syscall numbers are mistaken for rejected syscalls, but
+	 * won't have had the return value set appropriately, so we do so now.
+	 */
+	if (syscall < 0)
+		syscall_set_return_value(current, regs, -ENOSYS, 0);
 	return syscall;
 }
 
@@ -895,7 +920,7 @@ asmlinkage void syscall_trace_leave(struct pt_regs *regs)
 	audit_syscall_exit(regs);
 
 	if (unlikely(test_thread_flag(TIF_SYSCALL_TRACEPOINT)))
-		trace_sys_exit(regs, regs->regs[2]);
+		trace_sys_exit(regs, regs_return_value(regs));
 
 	if (test_thread_flag(TIF_SYSCALL_TRACE))
 		tracehook_report_syscall_exit(regs, 0);
diff --git a/arch/mips/kernel/scall32-o32.S b/arch/mips/kernel/scall32-o32.S
index 80ed68b2c95e..27c2f90eeb21 100644
--- a/arch/mips/kernel/scall32-o32.S
+++ b/arch/mips/kernel/scall32-o32.S
@@ -371,7 +371,7 @@ EXPORT(sys_call_table)
 	PTR	sys_writev
 	PTR	sys_cacheflush
 	PTR	sys_cachectl
-	PTR	sys_sysmips
+	PTR	__sys_sysmips
 	PTR	sys_ni_syscall			/* 4150 */
 	PTR	sys_getsid
 	PTR	sys_fdatasync
diff --git a/arch/mips/kernel/scall64-64.S b/arch/mips/kernel/scall64-64.S
index 49765b44aa9b..65d5aeeb9bdb 100644
--- a/arch/mips/kernel/scall64-64.S
+++ b/arch/mips/kernel/scall64-64.S
@@ -311,7 +311,7 @@ EXPORT(sys_call_table)
 	PTR	sys_sched_getaffinity
 	PTR	sys_cacheflush
 	PTR	sys_cachectl
-	PTR	sys_sysmips
+	PTR	__sys_sysmips
 	PTR	sys_io_setup			/* 5200 */
 	PTR	sys_io_destroy
 	PTR	sys_io_getevents
diff --git a/arch/mips/kernel/scall64-n32.S b/arch/mips/kernel/scall64-n32.S
index 90bad2d1b2d3..cbf190ef9e8a 100644
--- a/arch/mips/kernel/scall64-n32.S
+++ b/arch/mips/kernel/scall64-n32.S
@@ -302,7 +302,7 @@ EXPORT(sysn32_call_table)
 	PTR	compat_sys_sched_getaffinity
 	PTR	sys_cacheflush
 	PTR	sys_cachectl
-	PTR	sys_sysmips
+	PTR	__sys_sysmips
 	PTR	compat_sys_io_setup			/* 6200 */
 	PTR	sys_io_destroy
 	PTR	compat_sys_io_getevents
diff --git a/arch/mips/kernel/scall64-o32.S b/arch/mips/kernel/scall64-o32.S
index 2dd70bd104e1..c30bc520885f 100644
--- a/arch/mips/kernel/scall64-o32.S
+++ b/arch/mips/kernel/scall64-o32.S
@@ -371,7 +371,7 @@ EXPORT(sys32_call_table)
 	PTR	compat_sys_writev
 	PTR	sys_cacheflush
 	PTR	sys_cachectl
-	PTR	sys_sysmips
+	PTR	__sys_sysmips
 	PTR	sys_ni_syscall			/* 4150 */
 	PTR	sys_getsid
 	PTR	sys_fdatasync
diff --git a/arch/mips/kernel/setup.c b/arch/mips/kernel/setup.c
index 01d1dbde5fbf..fe3939726765 100644
--- a/arch/mips/kernel/setup.c
+++ b/arch/mips/kernel/setup.c
@@ -670,6 +670,46 @@ static int __init early_parse_mem(char *p)
 }
 early_param("mem", early_parse_mem);
 
+static int __init early_parse_memmap(char *p)
+{
+	char *oldp;
+	u64 start_at, mem_size;
+
+	if (!p)
+		return -EINVAL;
+
+	if (!strncmp(p, "exactmap", 8)) {
+		pr_err("\"memmap=exactmap\" invalid on MIPS\n");
+		return 0;
+	}
+
+	oldp = p;
+	mem_size = memparse(p, &p);
+	if (p == oldp)
+		return -EINVAL;
+
+	if (*p == '@') {
+		start_at = memparse(p+1, &p);
+		add_memory_region(start_at, mem_size, BOOT_MEM_RAM);
+	} else if (*p == '#') {
+		pr_err("\"memmap=nn#ss\" (force ACPI data) invalid on MIPS\n");
+		return -EINVAL;
+	} else if (*p == '$') {
+		start_at = memparse(p+1, &p);
+		add_memory_region(start_at, mem_size, BOOT_MEM_RESERVED);
+	} else {
+		pr_err("\"memmap\" invalid format!\n");
+		return -EINVAL;
+	}
+
+	if (*p == '\0') {
+		usermem = 1;
+		return 0;
+	} else
+		return -EINVAL;
+}
+early_param("memmap", early_parse_memmap);
+
 #ifdef CONFIG_PROC_VMCORE
 unsigned long setup_elfcorehdr, setup_elfcorehdr_size;
 static int __init early_parse_elfcorehdr(char *p)
diff --git a/arch/mips/kernel/smp-cps.c b/arch/mips/kernel/smp-cps.c
index 36954ddd0b9f..f832e99ad4c3 100644
--- a/arch/mips/kernel/smp-cps.c
+++ b/arch/mips/kernel/smp-cps.c
@@ -142,9 +142,11 @@ static void __init cps_prepare_cpus(unsigned int max_cpus)
 
 	/* Warn the user if the CCA prevents multi-core */
 	ncores = mips_cm_numcores();
-	if (cca_unsuitable && ncores > 1) {
-		pr_warn("Using only one core due to unsuitable CCA 0x%x\n",
-			cca);
+	if ((cca_unsuitable || cpu_has_dc_aliases) && ncores > 1) {
+		pr_warn("Using only one core due to %s%s%s\n",
+			cca_unsuitable ? "unsuitable CCA" : "",
+			(cca_unsuitable && cpu_has_dc_aliases) ? " & " : "",
+			cpu_has_dc_aliases ? "dcache aliasing" : "");
 
 		for_each_present_cpu(c) {
 			if (cpu_data[c].core)
@@ -488,6 +490,7 @@ static void cps_cpu_die(unsigned int cpu)
 {
 	unsigned core = cpu_data[cpu].core;
 	unsigned int vpe_id = cpu_vpe_id(&cpu_data[cpu]);
+	ktime_t fail_time;
 	unsigned stat;
 	int err;
 
@@ -514,6 +517,7 @@ static void cps_cpu_die(unsigned int cpu)
 		 * state, the latter happening when a JTAG probe is connected
 		 * in which case the CPC will refuse to power down the core.
 		 */
+		fail_time = ktime_add_ms(ktime_get(), 2000);
 		do {
 			mips_cm_lock_other(core, 0);
 			mips_cpc_lock_other(core);
@@ -521,9 +525,28 @@ static void cps_cpu_die(unsigned int cpu)
 			stat &= CPC_Cx_STAT_CONF_SEQSTATE_MSK;
 			mips_cpc_unlock_other();
 			mips_cm_unlock_other();
-		} while (stat != CPC_Cx_STAT_CONF_SEQSTATE_D0 &&
-			 stat != CPC_Cx_STAT_CONF_SEQSTATE_D2 &&
-			 stat != CPC_Cx_STAT_CONF_SEQSTATE_U2);
+
+			if (stat == CPC_Cx_STAT_CONF_SEQSTATE_D0 ||
+			    stat == CPC_Cx_STAT_CONF_SEQSTATE_D2 ||
+			    stat == CPC_Cx_STAT_CONF_SEQSTATE_U2)
+				break;
+
+			/*
+			 * The core ought to have powered down, but didn't &
+			 * now we don't really know what state it's in. It's
+			 * likely that its _pwr_up pin has been wired to logic
+			 * 1 & it powered back up as soon as we powered it
+			 * down...
+			 *
+			 * The best we can do is warn the user & continue in
+			 * the hope that the core is doing nothing harmful &
+			 * might behave properly if we online it later.
+			 */
+			if (WARN(ktime_after(ktime_get(), fail_time),
+				 "CPU%u hasn't powered down, seq. state %u\n",
+				 cpu, stat >> CPC_Cx_STAT_CONF_SEQSTATE_SHF))
+				break;
+		} while (1);
 
 		/* Indicate the core is powered off */
 		bitmap_clear(core_power, core, 1);
diff --git a/arch/mips/kernel/smp.c b/arch/mips/kernel/smp.c
index aba1afb64b62..6bace7695788 100644
--- a/arch/mips/kernel/smp.c
+++ b/arch/mips/kernel/smp.c
@@ -335,6 +335,9 @@ int mips_smp_ipi_free(const struct cpumask *mask)
 
 static int __init mips_smp_ipi_init(void)
 {
+	if (num_possible_cpus() == 1)
+		return 0;
+
 	mips_smp_ipi_allocate(cpu_possible_mask);
 
 	call_desc = irq_to_desc(call_virq);
@@ -373,9 +376,6 @@ asmlinkage void start_secondary(void)
 	cpumask_set_cpu(cpu, &cpu_coherent_mask);
 	notify_cpu_starting(cpu);
 
-	complete(&cpu_running);
-	synchronise_count_slave(cpu);
-
 	set_cpu_online(cpu, true);
 
 	set_cpu_sibling_map(cpu);
@@ -383,6 +383,9 @@ asmlinkage void start_secondary(void)
 
 	calculate_cpu_foreign_map();
 
+	complete(&cpu_running);
+	synchronise_count_slave(cpu);
+
 	/*
 	 * irq will be enabled in ->smp_finish(), enabling it too early
 	 * is dangerous.
diff --git a/arch/mips/kernel/syscall.c b/arch/mips/kernel/syscall.c
index 1dfa7f5796c7..58c6f634b550 100644
--- a/arch/mips/kernel/syscall.c
+++ b/arch/mips/kernel/syscall.c
@@ -29,6 +29,7 @@
 #include <linux/sched/task_stack.h>
 
 #include <asm/asm.h>
+#include <asm/asm-eva.h>
 #include <asm/branch.h>
 #include <asm/cachectl.h>
 #include <asm/cacheflush.h>
@@ -131,16 +132,14 @@ static inline int mips_atomic_set(unsigned long addr, unsigned long new)
 		__asm__ __volatile__ (
 		"	.set	"MIPS_ISA_ARCH_LEVEL"			\n"
 		"	li	%[err], 0				\n"
-		"1:	ll	%[old], (%[addr])			\n"
+		"1:							\n"
+		user_ll("%[old]", "(%[addr])")
 		"	move	%[tmp], %[new]				\n"
-		"2:	sc	%[tmp], (%[addr])			\n"
-		"	bnez	%[tmp], 4f				\n"
+		"2:							\n"
+		user_sc("%[tmp]", "(%[addr])")
+		"	beqz	%[tmp], 1b				\n"
 		"3:							\n"
 		"	.insn						\n"
-		"	.subsection 2					\n"
-		"4:	b	1b					\n"
-		"	.previous					\n"
-		"							\n"
 		"	.section .fixup,\"ax\"				\n"
 		"5:	li	%[err], %[efault]			\n"
 		"	j	3b					\n"
@@ -192,6 +191,12 @@ static inline int mips_atomic_set(unsigned long addr, unsigned long new)
 	unreachable();
 }
 
+/*
+ * mips_atomic_set() normally returns directly via syscall_exit potentially
+ * clobbering static registers, so be sure to preserve them.
+ */
+save_static_function(sys_sysmips);
+
 SYSCALL_DEFINE3(sysmips, long, cmd, long, arg1, long, arg2)
 {
 	switch (cmd) {
diff --git a/arch/mips/kernel/unaligned.c b/arch/mips/kernel/unaligned.c
index f806ee56e639..5eaf2578ac04 100644
--- a/arch/mips/kernel/unaligned.c
+++ b/arch/mips/kernel/unaligned.c
@@ -939,88 +939,114 @@ static void emulate_load_store_insn(struct pt_regs *regs,
 		 * The remaining opcodes are the ones that are really of
 		 * interest.
 		 */
-#ifdef CONFIG_EVA
 	case spec3_op:
-		/*
-		 * we can land here only from kernel accessing user memory,
-		 * so we need to "switch" the address limit to user space, so
-		 * address check can work properly.
-		 */
-		seg = get_fs();
-		set_fs(USER_DS);
-		switch (insn.spec3_format.func) {
-		case lhe_op:
-			if (!access_ok(VERIFY_READ, addr, 2)) {
-				set_fs(seg);
-				goto sigbus;
-			}
-			LoadHWE(addr, value, res);
-			if (res) {
-				set_fs(seg);
-				goto fault;
-			}
-			compute_return_epc(regs);
-			regs->regs[insn.spec3_format.rt] = value;
-			break;
-		case lwe_op:
-			if (!access_ok(VERIFY_READ, addr, 4)) {
-				set_fs(seg);
-				goto sigbus;
+		if (insn.dsp_format.func == lx_op) {
+			switch (insn.dsp_format.op) {
+			case lwx_op:
+				if (!access_ok(VERIFY_READ, addr, 4))
+					goto sigbus;
+				LoadW(addr, value, res);
+				if (res)
+					goto fault;
+				compute_return_epc(regs);
+				regs->regs[insn.dsp_format.rd] = value;
+				break;
+			case lhx_op:
+				if (!access_ok(VERIFY_READ, addr, 2))
+					goto sigbus;
+				LoadHW(addr, value, res);
+				if (res)
+					goto fault;
+				compute_return_epc(regs);
+				regs->regs[insn.dsp_format.rd] = value;
+				break;
+			default:
+				goto sigill;
 			}
+		}
+#ifdef CONFIG_EVA
+		else {
+			/*
+			 * we can land here only from kernel accessing user
+			 * memory, so we need to "switch" the address limit to
+			 * user space, so that address check can work properly.
+			 */
+			seg = get_fs();
+			set_fs(USER_DS);
+			switch (insn.spec3_format.func) {
+			case lhe_op:
+				if (!access_ok(VERIFY_READ, addr, 2)) {
+					set_fs(seg);
+					goto sigbus;
+				}
+				LoadHWE(addr, value, res);
+				if (res) {
+					set_fs(seg);
+					goto fault;
+				}
+				compute_return_epc(regs);
+				regs->regs[insn.spec3_format.rt] = value;
+				break;
+			case lwe_op:
+				if (!access_ok(VERIFY_READ, addr, 4)) {
+					set_fs(seg);
+					goto sigbus;
+				}
 				LoadWE(addr, value, res);
-			if (res) {
-				set_fs(seg);
-				goto fault;
-			}
-			compute_return_epc(regs);
-			regs->regs[insn.spec3_format.rt] = value;
-			break;
-		case lhue_op:
-			if (!access_ok(VERIFY_READ, addr, 2)) {
-				set_fs(seg);
-				goto sigbus;
-			}
-			LoadHWUE(addr, value, res);
-			if (res) {
-				set_fs(seg);
-				goto fault;
-			}
-			compute_return_epc(regs);
-			regs->regs[insn.spec3_format.rt] = value;
-			break;
-		case she_op:
-			if (!access_ok(VERIFY_WRITE, addr, 2)) {
-				set_fs(seg);
-				goto sigbus;
-			}
-			compute_return_epc(regs);
-			value = regs->regs[insn.spec3_format.rt];
-			StoreHWE(addr, value, res);
-			if (res) {
-				set_fs(seg);
-				goto fault;
-			}
-			break;
-		case swe_op:
-			if (!access_ok(VERIFY_WRITE, addr, 4)) {
-				set_fs(seg);
-				goto sigbus;
-			}
-			compute_return_epc(regs);
-			value = regs->regs[insn.spec3_format.rt];
-			StoreWE(addr, value, res);
-			if (res) {
+				if (res) {
+					set_fs(seg);
+					goto fault;
+				}
+				compute_return_epc(regs);
+				regs->regs[insn.spec3_format.rt] = value;
+				break;
+			case lhue_op:
+				if (!access_ok(VERIFY_READ, addr, 2)) {
+					set_fs(seg);
+					goto sigbus;
+				}
+				LoadHWUE(addr, value, res);
+				if (res) {
+					set_fs(seg);
+					goto fault;
+				}
+				compute_return_epc(regs);
+				regs->regs[insn.spec3_format.rt] = value;
+				break;
+			case she_op:
+				if (!access_ok(VERIFY_WRITE, addr, 2)) {
+					set_fs(seg);
+					goto sigbus;
+				}
+				compute_return_epc(regs);
+				value = regs->regs[insn.spec3_format.rt];
+				StoreHWE(addr, value, res);
+				if (res) {
+					set_fs(seg);
+					goto fault;
+				}
+				break;
+			case swe_op:
+				if (!access_ok(VERIFY_WRITE, addr, 4)) {
+					set_fs(seg);
+					goto sigbus;
+				}
+				compute_return_epc(regs);
+				value = regs->regs[insn.spec3_format.rt];
+				StoreWE(addr, value, res);
+				if (res) {
+					set_fs(seg);
+					goto fault;
+				}
+				break;
+			default:
 				set_fs(seg);
-				goto fault;
+				goto sigill;
 			}
-			break;
-		default:
 			set_fs(seg);
-			goto sigill;
 		}
-		set_fs(seg);
-		break;
 #endif
+		break;
 	case lh_op:
 		if (!access_ok(VERIFY_READ, addr, 2))
 			goto sigbus;
@@ -1984,6 +2010,8 @@ static void emulate_load_store_MIPS16e(struct pt_regs *regs, void __user * addr)
 	u16 __user *pc16;
 	unsigned long origpc;
 	union mips16e_instruction mips16inst, oldinst;
+	unsigned int opcode;
+	int extended = 0;
 
 	origpc = regs->cp0_epc;
 	orig31 = regs->regs[31];
@@ -1996,6 +2024,7 @@ static void emulate_load_store_MIPS16e(struct pt_regs *regs, void __user * addr)
 
 	/* skip EXTEND instruction */
 	if (mips16inst.ri.opcode == MIPS16e_extend_op) {
+		extended = 1;
 		pc16++;
 		__get_user(mips16inst.full, pc16);
 	} else if (delay_slot(regs)) {
@@ -2008,7 +2037,8 @@ static void emulate_load_store_MIPS16e(struct pt_regs *regs, void __user * addr)
 			goto sigbus;
 	}
 
-	switch (mips16inst.ri.opcode) {
+	opcode = mips16inst.ri.opcode;
+	switch (opcode) {
 	case MIPS16e_i64_op:	/* I64 or RI64 instruction */
 		switch (mips16inst.i64.func) {	/* I64/RI64 func field check */
 		case MIPS16e_ldpc_func:
@@ -2028,9 +2058,40 @@ static void emulate_load_store_MIPS16e(struct pt_regs *regs, void __user * addr)
 		goto sigbus;
 
 	case MIPS16e_swsp_op:
+		reg = reg16to32[mips16inst.ri.rx];
+		if (extended && cpu_has_mips16e2)
+			switch (mips16inst.ri.imm >> 5) {
+			case 0:		/* SWSP */
+			case 1:		/* SWGP */
+				break;
+			case 2:		/* SHGP */
+				opcode = MIPS16e_sh_op;
+				break;
+			default:
+				goto sigbus;
+			}
+		break;
+
 	case MIPS16e_lwpc_op:
+		reg = reg16to32[mips16inst.ri.rx];
+		break;
+
 	case MIPS16e_lwsp_op:
 		reg = reg16to32[mips16inst.ri.rx];
+		if (extended && cpu_has_mips16e2)
+			switch (mips16inst.ri.imm >> 5) {
+			case 0:		/* LWSP */
+			case 1:		/* LWGP */
+				break;
+			case 2:		/* LHGP */
+				opcode = MIPS16e_lh_op;
+				break;
+			case 4:		/* LHUGP */
+				opcode = MIPS16e_lhu_op;
+				break;
+			default:
+				goto sigbus;
+			}
 		break;
 
 	case MIPS16e_i8_op:
@@ -2044,7 +2105,7 @@ static void emulate_load_store_MIPS16e(struct pt_regs *regs, void __user * addr)
 		break;
 	}
 
-	switch (mips16inst.ri.opcode) {
+	switch (opcode) {
 
 	case MIPS16e_lb_op:
 	case MIPS16e_lbu_op:
diff --git a/arch/mips/lib/memcpy.S b/arch/mips/lib/memcpy.S
index 3114a2ed1f4e..03e3304d6ae5 100644
--- a/arch/mips/lib/memcpy.S
+++ b/arch/mips/lib/memcpy.S
@@ -28,6 +28,9 @@
 #ifdef CONFIG_MIPS_MALTA
 #undef CONFIG_CPU_HAS_PREFETCH
 #endif
+#ifdef CONFIG_CPU_MIPSR6
+#undef CONFIG_CPU_HAS_PREFETCH
+#endif
 
 #include <asm/asm.h>
 #include <asm/asm-offsets.h>
diff --git a/arch/mips/loongson64/common/env.c b/arch/mips/loongson64/common/env.c
index 6afa21850267..1e8a955ae5a8 100644
--- a/arch/mips/loongson64/common/env.c
+++ b/arch/mips/loongson64/common/env.c
@@ -90,7 +90,9 @@ void __init prom_init_env(void)
 
 	cpu_clock_freq = ecpu->cpu_clock_freq;
 	loongson_sysconf.cputype = ecpu->cputype;
-	if (ecpu->cputype == Loongson_3A) {
+	switch (ecpu->cputype) {
+	case Legacy_3A:
+	case Loongson_3A:
 		loongson_sysconf.cores_per_node = 4;
 		loongson_sysconf.cores_per_package = 4;
 		smp_group[0] = 0x900000003ff01000;
@@ -111,7 +113,9 @@ void __init prom_init_env(void)
 		loongson_freqctrl[3] = 0x900030001fe001d0;
 		loongson_sysconf.ht_control_base = 0x90000EFDFB000000;
 		loongson_sysconf.workarounds = WORKAROUND_CPUFREQ;
-	} else if (ecpu->cputype == Loongson_3B) {
+		break;
+	case Legacy_3B:
+	case Loongson_3B:
 		loongson_sysconf.cores_per_node = 4; /* One chip has 2 nodes */
 		loongson_sysconf.cores_per_package = 8;
 		smp_group[0] = 0x900000003ff01000;
@@ -132,7 +136,8 @@ void __init prom_init_env(void)
 		loongson_freqctrl[3] = 0x900060001fe001d0;
 		loongson_sysconf.ht_control_base = 0x90001EFDFB000000;
 		loongson_sysconf.workarounds = WORKAROUND_CPUHOTPLUG;
-	} else {
+		break;
+	default:
 		loongson_sysconf.cores_per_node = 1;
 		loongson_sysconf.cores_per_package = 1;
 		loongson_chipcfg[0] = 0x900000001fe00180;
@@ -193,6 +198,7 @@ void __init prom_init_env(void)
 			break;
 		case PRID_REV_LOONGSON3A_R1:
 		case PRID_REV_LOONGSON3A_R2:
+		case PRID_REV_LOONGSON3A_R3:
 			cpu_clock_freq = 900000000;
 			break;
 		case PRID_REV_LOONGSON3B_R1:
diff --git a/arch/mips/loongson64/common/init.c b/arch/mips/loongson64/common/init.c
index 9b987fe98b5b..6ef17120722f 100644
--- a/arch/mips/loongson64/common/init.c
+++ b/arch/mips/loongson64/common/init.c
@@ -10,13 +10,25 @@
 
 #include <linux/bootmem.h>
 #include <asm/bootinfo.h>
+#include <asm/traps.h>
 #include <asm/smp-ops.h>
+#include <asm/cacheflush.h>
 
 #include <loongson.h>
 
 /* Loongson CPU address windows config space base address */
 unsigned long __maybe_unused _loongson_addrwincfg_base;
 
+static void __init mips_nmi_setup(void)
+{
+	void *base;
+	extern char except_vec_nmi;
+
+	base = (void *)(CAC_BASE + 0x380);
+	memcpy(base, &except_vec_nmi, 0x80);
+	flush_icache_range((unsigned long)base, (unsigned long)base + 0x80);
+}
+
 void __init prom_init(void)
 {
 #ifdef CONFIG_CPU_SUPPORTS_ADDRWINCFG
@@ -40,6 +52,7 @@ void __init prom_init(void)
 	/*init the uart base address */
 	prom_init_uart_base();
 	register_smp_ops(&loongson3_smp_ops);
+	board_nmi_handler_setup = mips_nmi_setup;
 }
 
 void __init prom_free_prom_memory(void)
diff --git a/arch/mips/loongson64/loongson-3/irq.c b/arch/mips/loongson64/loongson-3/irq.c
index 548f759454dc..7202e52cd046 100644
--- a/arch/mips/loongson64/loongson-3/irq.c
+++ b/arch/mips/loongson64/loongson-3/irq.c
@@ -9,18 +9,69 @@
 
 #include "smp.h"
 
+extern void loongson3_send_irq_by_ipi(int cpu, int irqs);
+
+unsigned int irq_cpu[16] = {[0 ... 15] = -1};
 unsigned int ht_irq[] = {0, 1, 3, 4, 5, 6, 7, 8, 12, 14, 15};
+unsigned int local_irq = 1<<0 | 1<<1 | 1<<2 | 1<<7 | 1<<8 | 1<<12;
+
+int plat_set_irq_affinity(struct irq_data *d, const struct cpumask *affinity,
+			  bool force)
+{
+	unsigned int cpu;
+	struct cpumask new_affinity;
+
+	/* I/O devices are connected on package-0 */
+	cpumask_copy(&new_affinity, affinity);
+	for_each_cpu(cpu, affinity)
+		if (cpu_data[cpu].package > 0)
+			cpumask_clear_cpu(cpu, &new_affinity);
+
+	if (cpumask_empty(&new_affinity))
+		return -EINVAL;
+
+	cpumask_copy(d->common->affinity, &new_affinity);
+
+	return IRQ_SET_MASK_OK_NOCOPY;
+}
 
 static void ht_irqdispatch(void)
 {
 	unsigned int i, irq;
+	struct irq_data *irqd;
+	struct cpumask affinity;
 
 	irq = LOONGSON_HT1_INT_VECTOR(0);
 	LOONGSON_HT1_INT_VECTOR(0) = irq; /* Acknowledge the IRQs */
 
 	for (i = 0; i < ARRAY_SIZE(ht_irq); i++) {
-		if (irq & (0x1 << ht_irq[i]))
+		if (!(irq & (0x1 << ht_irq[i])))
+			continue;
+
+		/* handled by local core */
+		if (local_irq & (0x1 << ht_irq[i])) {
 			do_IRQ(ht_irq[i]);
+			continue;
+		}
+
+		irqd = irq_get_irq_data(ht_irq[i]);
+		cpumask_and(&affinity, irqd->common->affinity, cpu_active_mask);
+		if (cpumask_empty(&affinity)) {
+			do_IRQ(ht_irq[i]);
+			continue;
+		}
+
+		irq_cpu[ht_irq[i]] = cpumask_next(irq_cpu[ht_irq[i]], &affinity);
+		if (irq_cpu[ht_irq[i]] >= nr_cpu_ids)
+			irq_cpu[ht_irq[i]] = cpumask_first(&affinity);
+
+		if (irq_cpu[ht_irq[i]] == 0) {
+			do_IRQ(ht_irq[i]);
+			continue;
+		}
+
+		/* balanced by other cores */
+		loongson3_send_irq_by_ipi(irq_cpu[ht_irq[i]], (0x1 << ht_irq[i]));
 	}
 }
 
@@ -120,11 +171,16 @@ void irq_router_init(void)
 
 void __init mach_init_irq(void)
 {
+	struct irq_chip *chip;
+
 	clear_c0_status(ST0_IM | ST0_BEV);
 
 	irq_router_init();
 	mips_cpu_irq_init();
 	init_i8259_irqs();
+	chip = irq_get_chip(I8259A_IRQ_BASE);
+	chip->irq_set_affinity = plat_set_irq_affinity;
+
 	irq_set_chip_and_handler(LOONGSON_UART_IRQ,
 			&loongson_irq_chip, handle_level_irq);
 
diff --git a/arch/mips/loongson64/loongson-3/smp.c b/arch/mips/loongson64/loongson-3/smp.c
index 64659fc73940..b7a355c3c408 100644
--- a/arch/mips/loongson64/loongson-3/smp.c
+++ b/arch/mips/loongson64/loongson-3/smp.c
@@ -254,13 +254,21 @@ loongson3_send_ipi_mask(const struct cpumask *mask, unsigned int action)
 		loongson3_ipi_write32((u32)action, ipi_set0_regs[cpu_logical_map(i)]);
 }
 
+#define IPI_IRQ_OFFSET 6
+
+void loongson3_send_irq_by_ipi(int cpu, int irqs)
+{
+	loongson3_ipi_write32(irqs << IPI_IRQ_OFFSET, ipi_set0_regs[cpu_logical_map(cpu)]);
+}
+
 void loongson3_ipi_interrupt(struct pt_regs *regs)
 {
 	int i, cpu = smp_processor_id();
-	unsigned int action, c0count;
+	unsigned int action, c0count, irqs;
 
 	/* Load the ipi register to figure out what we're supposed to do */
 	action = loongson3_ipi_read32(ipi_status0_regs[cpu_logical_map(cpu)]);
+	irqs = action >> IPI_IRQ_OFFSET;
 
 	/* Clear the ipi register to clear the interrupt */
 	loongson3_ipi_write32((u32)action, ipi_clear0_regs[cpu_logical_map(cpu)]);
@@ -282,6 +290,14 @@ void loongson3_ipi_interrupt(struct pt_regs *regs)
 			core0_c0count[i] = c0count;
 		__wbflush(); /* Let others see the result ASAP */
 	}
+
+	if (irqs) {
+		int irq;
+		while ((irq = ffs(irqs))) {
+			do_IRQ(irq-1);
+			irqs &= ~(1<<(irq-1));
+		}
+	}
 }
 
 #define MAX_LOOPS 800
@@ -503,7 +519,7 @@ static void loongson3a_r1_play_dead(int *state_addr)
 		: "a1");
 }
 
-static void loongson3a_r2_play_dead(int *state_addr)
+static void loongson3a_r2r3_play_dead(int *state_addr)
 {
 	register int val;
 	register long cpuid, core, node, count;
@@ -664,8 +680,9 @@ void play_dead(void)
 			(void *)CKSEG1ADDR((unsigned long)loongson3a_r1_play_dead);
 		break;
 	case PRID_REV_LOONGSON3A_R2:
+	case PRID_REV_LOONGSON3A_R3:
 		play_dead_at_ckseg1 =
-			(void *)CKSEG1ADDR((unsigned long)loongson3a_r2_play_dead);
+			(void *)CKSEG1ADDR((unsigned long)loongson3a_r2r3_play_dead);
 		break;
 	case PRID_REV_LOONGSON3B_R1:
 	case PRID_REV_LOONGSON3B_R2:
diff --git a/arch/mips/math-emu/cp1emu.c b/arch/mips/math-emu/cp1emu.c
index f12fde10c8ad..f08a7b4facb9 100644
--- a/arch/mips/math-emu/cp1emu.c
+++ b/arch/mips/math-emu/cp1emu.c
@@ -1142,7 +1142,7 @@ emul:
 
 		case mfhc_op:
 			if (!cpu_has_mips_r2_r6)
-				goto sigill;
+				return SIGILL;
 
 			/* copregister rd -> gpr[rt] */
 			if (MIPSInst_RT(ir) != 0) {
@@ -1153,7 +1153,7 @@ emul:
 
 		case mthc_op:
 			if (!cpu_has_mips_r2_r6)
-				goto sigill;
+				return SIGILL;
 
 			/* copregister rd <- gpr[rt] */
 			SITOHREG(xcp->regs[MIPSInst_RT(ir)], MIPSInst_RD(ir));
@@ -1376,7 +1376,6 @@ branch_common:
 				xcp->regs[MIPSInst_RS(ir)];
 		break;
 	default:
-sigill:
 		return SIGILL;
 	}
 
@@ -2524,6 +2523,35 @@ dcopuop:
 	return 0;
 }
 
+/*
+ * Emulate FPU instructions.
+ *
+ * If we use FPU hardware, then we have been typically called to handle
+ * an unimplemented operation, such as where an operand is a NaN or
+ * denormalized.  In that case exit the emulation loop after a single
+ * iteration so as to let hardware execute any subsequent instructions.
+ *
+ * If we have no FPU hardware or it has been disabled, then continue
+ * emulating floating-point instructions until one of these conditions
+ * has occurred:
+ *
+ * - a non-FPU instruction has been encountered,
+ *
+ * - an attempt to emulate has ended with a signal,
+ *
+ * - the ISA mode has been switched.
+ *
+ * We need to terminate the emulation loop if we got switched to the
+ * MIPS16 mode, whether supported or not, so that we do not attempt
+ * to emulate a MIPS16 instruction as a regular MIPS FPU instruction.
+ * Similarly if we got switched to the microMIPS mode and only the
+ * regular MIPS mode is supported, so that we do not attempt to emulate
+ * a microMIPS instruction as a regular MIPS FPU instruction.  Or if
+ * we got switched to the regular MIPS mode and only the microMIPS mode
+ * is supported, so that we do not attempt to emulate a regular MIPS
+ * instruction that should cause an Address Error exception instead.
+ * For simplicity we always terminate upon an ISA mode switch.
+ */
 int fpu_emulator_cop1Handler(struct pt_regs *xcp, struct mips_fpu_struct *ctx,
 	int has_fpu, void *__user *fault_addr)
 {
@@ -2609,6 +2637,15 @@ int fpu_emulator_cop1Handler(struct pt_regs *xcp, struct mips_fpu_struct *ctx,
 			break;
 		if (sig)
 			break;
+		/*
+		 * We have to check for the ISA bit explicitly here,
+		 * because `get_isa16_mode' may return 0 if support
+		 * for code compression has been globally disabled,
+		 * or otherwise we may produce the wrong signal or
+		 * even proceed successfully where we must not.
+		 */
+		if ((xcp->cp0_epc ^ prevepc) & 0x1)
+			break;
 
 		cond_resched();
 	} while (xcp->cp0_epc > prevepc);
diff --git a/arch/mips/mm/c-r4k.c b/arch/mips/mm/c-r4k.c
index 3fe99cb271a9..81d6a15c93d0 100644
--- a/arch/mips/mm/c-r4k.c
+++ b/arch/mips/mm/c-r4k.c
@@ -1453,6 +1453,7 @@ static void probe_pcache(void)
 	case CPU_20KC:
 	case CPU_25KF:
 	case CPU_I6400:
+	case CPU_I6500:
 	case CPU_SB1:
 	case CPU_SB1A:
 	case CPU_XLR:
@@ -1512,6 +1513,7 @@ static void probe_pcache(void)
 
 	case CPU_ALCHEMY:
 	case CPU_I6400:
+	case CPU_I6500:
 		c->icache.flags |= MIPS_CACHE_IC_F_DC;
 		break;
 
diff --git a/arch/mips/mm/dma-default.c b/arch/mips/mm/dma-default.c
index e08598c70b3e..8e78251eccc2 100644
--- a/arch/mips/mm/dma-default.c
+++ b/arch/mips/mm/dma-default.c
@@ -232,7 +232,7 @@ static int mips_dma_mmap(struct device *dev, struct vm_area_struct *vma,
 	else
 		vma->vm_page_prot = pgprot_noncached(vma->vm_page_prot);
 
-	if (dma_mmap_from_coherent(dev, vma, cpu_addr, size, &ret))
+	if (dma_mmap_from_dev_coherent(dev, vma, cpu_addr, size, &ret))
 		return ret;
 
 	if (off < count && user_count <= (count - off)) {
diff --git a/arch/mips/mm/tlbex.c b/arch/mips/mm/tlbex.c
index ed1c5297547a..5aadc69c8ce3 100644
--- a/arch/mips/mm/tlbex.c
+++ b/arch/mips/mm/tlbex.c
@@ -153,8 +153,7 @@ static int scratchpad_offset(int i)
  */
 static int m4kc_tlbp_war(void)
 {
-	return (current_cpu_data.processor_id & 0xffff00) ==
-	       (PRID_COMP_MIPS | PRID_IMP_4KC);
+	return current_cpu_type() == CPU_4KC;
 }
 
 /* Handle labels (which must be positive integers). */
@@ -2015,6 +2014,26 @@ static void build_r3000_tlb_modify_handler(void)
 }
 #endif /* CONFIG_MIPS_PGD_C0_CONTEXT */
 
+static bool cpu_has_tlbex_tlbp_race(void)
+{
+	/*
+	 * When a Hardware Table Walker is running it can replace TLB entries
+	 * at any time, leading to a race between it & the CPU.
+	 */
+	if (cpu_has_htw)
+		return true;
+
+	/*
+	 * If the CPU shares FTLB RAM with its siblings then our entry may be
+	 * replaced at any time by a sibling performing a write to the FTLB.
+	 */
+	if (cpu_has_shared_ftlb_ram)
+		return true;
+
+	/* In all other cases there ought to be no race condition to handle */
+	return false;
+}
+
 /*
  * R4000 style TLB load/store/modify handlers.
  */
@@ -2051,7 +2070,7 @@ build_r4000_tlbchange_handler_head(u32 **p, struct uasm_label **l,
 	iPTE_LW(p, wr.r1, wr.r2); /* get even pte */
 	if (!m4kc_tlbp_war()) {
 		build_tlb_probe_entry(p);
-		if (cpu_has_htw) {
+		if (cpu_has_tlbex_tlbp_race()) {
 			/* race condition happens, leaving */
 			uasm_i_ehb(p);
 			uasm_i_mfc0(p, wr.r3, C0_INDEX);
@@ -2125,6 +2144,14 @@ static void build_r4000_tlb_load_handler(void)
 		}
 		uasm_i_nop(&p);
 
+		/*
+		 * Warn if something may race with us & replace the TLB entry
+		 * before we read it here. Everything with such races should
+		 * also have dedicated RiXi exception handlers, so this
+		 * shouldn't be hit.
+		 */
+		WARN(cpu_has_tlbex_tlbp_race(), "Unhandled race in RiXi path");
+
 		uasm_i_tlbr(&p);
 
 		switch (current_cpu_type()) {
@@ -2192,6 +2219,14 @@ static void build_r4000_tlb_load_handler(void)
 		}
 		uasm_i_nop(&p);
 
+		/*
+		 * Warn if something may race with us & replace the TLB entry
+		 * before we read it here. Everything with such races should
+		 * also have dedicated RiXi exception handlers, so this
+		 * shouldn't be hit.
+		 */
+		WARN(cpu_has_tlbex_tlbp_race(), "Unhandled race in RiXi path");
+
 		uasm_i_tlbr(&p);
 
 		switch (current_cpu_type()) {
diff --git a/arch/mips/mm/uasm-micromips.c b/arch/mips/mm/uasm-micromips.c
index 277cf52d80e1..c28ff53c8da0 100644
--- a/arch/mips/mm/uasm-micromips.c
+++ b/arch/mips/mm/uasm-micromips.c
@@ -40,93 +40,92 @@
 
 #include "uasm.c"
 
-static struct insn insn_table_MM[] = {
-	{ insn_addu, M(mm_pool32a_op, 0, 0, 0, 0, mm_addu32_op), RT | RS | RD },
-	{ insn_addiu, M(mm_addiu32_op, 0, 0, 0, 0, 0), RT | RS | SIMM },
-	{ insn_and, M(mm_pool32a_op, 0, 0, 0, 0, mm_and_op), RT | RS | RD },
-	{ insn_andi, M(mm_andi32_op, 0, 0, 0, 0, 0), RT | RS | UIMM },
-	{ insn_beq, M(mm_beq32_op, 0, 0, 0, 0, 0), RS | RT | BIMM },
-	{ insn_beql, 0, 0 },
-	{ insn_bgez, M(mm_pool32i_op, mm_bgez_op, 0, 0, 0, 0), RS | BIMM },
-	{ insn_bgezl, 0, 0 },
-	{ insn_bltz, M(mm_pool32i_op, mm_bltz_op, 0, 0, 0, 0), RS | BIMM },
-	{ insn_bltzl, 0, 0 },
-	{ insn_bne, M(mm_bne32_op, 0, 0, 0, 0, 0), RT | RS | BIMM },
-	{ insn_cache, M(mm_pool32b_op, 0, 0, mm_cache_func, 0, 0), RT | RS | SIMM },
-	{ insn_cfc1, M(mm_pool32f_op, 0, 0, 0, mm_cfc1_op, mm_32f_73_op), RT | RS },
-	{ insn_cfcmsa, M(mm_pool32s_op, 0, msa_cfc_op, 0, 0, mm_32s_elm_op), RD | RE },
-	{ insn_ctc1, M(mm_pool32f_op, 0, 0, 0, mm_ctc1_op, mm_32f_73_op), RT | RS },
-	{ insn_ctcmsa, M(mm_pool32s_op, 0, msa_ctc_op, 0, 0, mm_32s_elm_op), RD | RE },
-	{ insn_daddu, 0, 0 },
-	{ insn_daddiu, 0, 0 },
-	{ insn_di, M(mm_pool32a_op, 0, 0, 0, mm_di_op, mm_pool32axf_op), RS },
-	{ insn_divu, M(mm_pool32a_op, 0, 0, 0, mm_divu_op, mm_pool32axf_op), RT | RS },
-	{ insn_dmfc0, 0, 0 },
-	{ insn_dmtc0, 0, 0 },
-	{ insn_dsll, 0, 0 },
-	{ insn_dsll32, 0, 0 },
-	{ insn_dsra, 0, 0 },
-	{ insn_dsrl, 0, 0 },
-	{ insn_dsrl32, 0, 0 },
-	{ insn_drotr, 0, 0 },
-	{ insn_drotr32, 0, 0 },
-	{ insn_dsubu, 0, 0 },
-	{ insn_eret, M(mm_pool32a_op, 0, 0, 0, mm_eret_op, mm_pool32axf_op), 0 },
-	{ insn_ins, M(mm_pool32a_op, 0, 0, 0, 0, mm_ins_op), RT | RS | RD | RE },
-	{ insn_ext, M(mm_pool32a_op, 0, 0, 0, 0, mm_ext_op), RT | RS | RD | RE },
-	{ insn_j, M(mm_j32_op, 0, 0, 0, 0, 0), JIMM },
-	{ insn_jal, M(mm_jal32_op, 0, 0, 0, 0, 0), JIMM },
-	{ insn_jalr, M(mm_pool32a_op, 0, 0, 0, mm_jalr_op, mm_pool32axf_op), RT | RS },
-	{ insn_jr, M(mm_pool32a_op, 0, 0, 0, mm_jalr_op, mm_pool32axf_op), RS },
-	{ insn_lb, M(mm_lb32_op, 0, 0, 0, 0, 0), RT | RS | SIMM },
-	{ insn_ld, 0, 0 },
-	{ insn_lh, M(mm_lh32_op, 0, 0, 0, 0, 0), RS | RS | SIMM },
-	{ insn_ll, M(mm_pool32c_op, 0, 0, (mm_ll_func << 1), 0, 0), RS | RT | SIMM },
-	{ insn_lld, 0, 0 },
-	{ insn_lui, M(mm_pool32i_op, mm_lui_op, 0, 0, 0, 0), RS | SIMM },
-	{ insn_lw, M(mm_lw32_op, 0, 0, 0, 0, 0), RT | RS | SIMM },
-	{ insn_mfc0, M(mm_pool32a_op, 0, 0, 0, mm_mfc0_op, mm_pool32axf_op), RT | RS | RD },
-	{ insn_mfhi, M(mm_pool32a_op, 0, 0, 0, mm_mfhi32_op, mm_pool32axf_op), RS },
-	{ insn_mflo, M(mm_pool32a_op, 0, 0, 0, mm_mflo32_op, mm_pool32axf_op), RS },
-	{ insn_mtc0, M(mm_pool32a_op, 0, 0, 0, mm_mtc0_op, mm_pool32axf_op), RT | RS | RD },
-	{ insn_mthi, M(mm_pool32a_op, 0, 0, 0, mm_mthi32_op, mm_pool32axf_op), RS },
-	{ insn_mtlo, M(mm_pool32a_op, 0, 0, 0, mm_mtlo32_op, mm_pool32axf_op), RS },
-	{ insn_mul, M(mm_pool32a_op, 0, 0, 0, 0, mm_mul_op), RT | RS | RD },
-	{ insn_or, M(mm_pool32a_op, 0, 0, 0, 0, mm_or32_op), RT | RS | RD },
-	{ insn_ori, M(mm_ori32_op, 0, 0, 0, 0, 0), RT | RS | UIMM },
-	{ insn_pref, M(mm_pool32c_op, 0, 0, (mm_pref_func << 1), 0, 0), RT | RS | SIMM },
-	{ insn_rfe, 0, 0 },
-	{ insn_sc, M(mm_pool32c_op, 0, 0, (mm_sc_func << 1), 0, 0), RT | RS | SIMM },
-	{ insn_scd, 0, 0 },
-	{ insn_sd, 0, 0 },
-	{ insn_sll, M(mm_pool32a_op, 0, 0, 0, 0, mm_sll32_op), RT | RS | RD },
-	{ insn_sllv, M(mm_pool32a_op, 0, 0, 0, 0, mm_sllv32_op), RT | RS | RD },
-	{ insn_slt, M(mm_pool32a_op, 0, 0, 0, 0, mm_slt_op), RT | RS | RD },
-	{ insn_sltiu, M(mm_sltiu32_op, 0, 0, 0, 0, 0), RT | RS | SIMM },
-	{ insn_sltu, M(mm_pool32a_op, 0, 0, 0, 0, mm_sltu_op), RT | RS | RD },
-	{ insn_sra, M(mm_pool32a_op, 0, 0, 0, 0, mm_sra_op), RT | RS | RD },
-	{ insn_srl, M(mm_pool32a_op, 0, 0, 0, 0, mm_srl32_op), RT | RS | RD },
-	{ insn_srlv, M(mm_pool32a_op, 0, 0, 0, 0, mm_srlv32_op), RT | RS | RD },
-	{ insn_rotr, M(mm_pool32a_op, 0, 0, 0, 0, mm_rotr_op), RT | RS | RD },
-	{ insn_subu, M(mm_pool32a_op, 0, 0, 0, 0, mm_subu32_op), RT | RS | RD },
-	{ insn_sw, M(mm_sw32_op, 0, 0, 0, 0, 0), RT | RS | SIMM },
-	{ insn_sync, M(mm_pool32a_op, 0, 0, 0, mm_sync_op, mm_pool32axf_op), RS },
-	{ insn_tlbp, M(mm_pool32a_op, 0, 0, 0, mm_tlbp_op, mm_pool32axf_op), 0 },
-	{ insn_tlbr, M(mm_pool32a_op, 0, 0, 0, mm_tlbr_op, mm_pool32axf_op), 0 },
-	{ insn_tlbwi, M(mm_pool32a_op, 0, 0, 0, mm_tlbwi_op, mm_pool32axf_op), 0 },
-	{ insn_tlbwr, M(mm_pool32a_op, 0, 0, 0, mm_tlbwr_op, mm_pool32axf_op), 0 },
-	{ insn_wait, M(mm_pool32a_op, 0, 0, 0, mm_wait_op, mm_pool32axf_op), SCIMM },
-	{ insn_wsbh, M(mm_pool32a_op, 0, 0, 0, mm_wsbh_op, mm_pool32axf_op), RT | RS },
-	{ insn_xor, M(mm_pool32a_op, 0, 0, 0, 0, mm_xor32_op), RT | RS | RD },
-	{ insn_xori, M(mm_xori32_op, 0, 0, 0, 0, 0), RT | RS | UIMM },
-	{ insn_dins, 0, 0 },
-	{ insn_dinsm, 0, 0 },
-	{ insn_syscall, M(mm_pool32a_op, 0, 0, 0, mm_syscall_op, mm_pool32axf_op), SCIMM},
-	{ insn_bbit0, 0, 0 },
-	{ insn_bbit1, 0, 0 },
-	{ insn_lwx, 0, 0 },
-	{ insn_ldx, 0, 0 },
-	{ insn_invalid, 0, 0 }
+static const struct insn const insn_table_MM[insn_invalid] = {
+	[insn_addu]	= {M(mm_pool32a_op, 0, 0, 0, 0, mm_addu32_op), RT | RS | RD},
+	[insn_addiu]	= {M(mm_addiu32_op, 0, 0, 0, 0, 0), RT | RS | SIMM},
+	[insn_and]	= {M(mm_pool32a_op, 0, 0, 0, 0, mm_and_op), RT | RS | RD},
+	[insn_andi]	= {M(mm_andi32_op, 0, 0, 0, 0, 0), RT | RS | UIMM},
+	[insn_beq]	= {M(mm_beq32_op, 0, 0, 0, 0, 0), RS | RT | BIMM},
+	[insn_beql]	= {0, 0},
+	[insn_bgez]	= {M(mm_pool32i_op, mm_bgez_op, 0, 0, 0, 0), RS | BIMM},
+	[insn_bgezl]	= {0, 0},
+	[insn_bltz]	= {M(mm_pool32i_op, mm_bltz_op, 0, 0, 0, 0), RS | BIMM},
+	[insn_bltzl]	= {0, 0},
+	[insn_bne]	= {M(mm_bne32_op, 0, 0, 0, 0, 0), RT | RS | BIMM},
+	[insn_cache]	= {M(mm_pool32b_op, 0, 0, mm_cache_func, 0, 0), RT | RS | SIMM},
+	[insn_cfc1]	= {M(mm_pool32f_op, 0, 0, 0, mm_cfc1_op, mm_32f_73_op), RT | RS},
+	[insn_cfcmsa]	= {M(mm_pool32s_op, 0, msa_cfc_op, 0, 0, mm_32s_elm_op), RD | RE},
+	[insn_ctc1]	= {M(mm_pool32f_op, 0, 0, 0, mm_ctc1_op, mm_32f_73_op), RT | RS},
+	[insn_ctcmsa]	= {M(mm_pool32s_op, 0, msa_ctc_op, 0, 0, mm_32s_elm_op), RD | RE},
+	[insn_daddu]	= {0, 0},
+	[insn_daddiu]	= {0, 0},
+	[insn_di]	= {M(mm_pool32a_op, 0, 0, 0, mm_di_op, mm_pool32axf_op), RS},
+	[insn_divu]	= {M(mm_pool32a_op, 0, 0, 0, mm_divu_op, mm_pool32axf_op), RT | RS},
+	[insn_dmfc0]	= {0, 0},
+	[insn_dmtc0]	= {0, 0},
+	[insn_dsll]	= {0, 0},
+	[insn_dsll32]	= {0, 0},
+	[insn_dsra]	= {0, 0},
+	[insn_dsrl]	= {0, 0},
+	[insn_dsrl32]	= {0, 0},
+	[insn_drotr]	= {0, 0},
+	[insn_drotr32]	= {0, 0},
+	[insn_dsubu]	= {0, 0},
+	[insn_eret]	= {M(mm_pool32a_op, 0, 0, 0, mm_eret_op, mm_pool32axf_op), 0},
+	[insn_ins]	= {M(mm_pool32a_op, 0, 0, 0, 0, mm_ins_op), RT | RS | RD | RE},
+	[insn_ext]	= {M(mm_pool32a_op, 0, 0, 0, 0, mm_ext_op), RT | RS | RD | RE},
+	[insn_j]	= {M(mm_j32_op, 0, 0, 0, 0, 0), JIMM},
+	[insn_jal]	= {M(mm_jal32_op, 0, 0, 0, 0, 0), JIMM},
+	[insn_jalr]	= {M(mm_pool32a_op, 0, 0, 0, mm_jalr_op, mm_pool32axf_op), RT | RS},
+	[insn_jr]	= {M(mm_pool32a_op, 0, 0, 0, mm_jalr_op, mm_pool32axf_op), RS},
+	[insn_lb]	= {M(mm_lb32_op, 0, 0, 0, 0, 0), RT | RS | SIMM},
+	[insn_ld]	= {0, 0},
+	[insn_lh]	= {M(mm_lh32_op, 0, 0, 0, 0, 0), RS | RS | SIMM},
+	[insn_ll]	= {M(mm_pool32c_op, 0, 0, (mm_ll_func << 1), 0, 0), RS | RT | SIMM},
+	[insn_lld]	= {0, 0},
+	[insn_lui]	= {M(mm_pool32i_op, mm_lui_op, 0, 0, 0, 0), RS | SIMM},
+	[insn_lw]	= {M(mm_lw32_op, 0, 0, 0, 0, 0), RT | RS | SIMM},
+	[insn_mfc0]	= {M(mm_pool32a_op, 0, 0, 0, mm_mfc0_op, mm_pool32axf_op), RT | RS | RD},
+	[insn_mfhi]	= {M(mm_pool32a_op, 0, 0, 0, mm_mfhi32_op, mm_pool32axf_op), RS},
+	[insn_mflo]	= {M(mm_pool32a_op, 0, 0, 0, mm_mflo32_op, mm_pool32axf_op), RS},
+	[insn_mtc0]	= {M(mm_pool32a_op, 0, 0, 0, mm_mtc0_op, mm_pool32axf_op), RT | RS | RD},
+	[insn_mthi]	= {M(mm_pool32a_op, 0, 0, 0, mm_mthi32_op, mm_pool32axf_op), RS},
+	[insn_mtlo]	= {M(mm_pool32a_op, 0, 0, 0, mm_mtlo32_op, mm_pool32axf_op), RS},
+	[insn_mul]	= {M(mm_pool32a_op, 0, 0, 0, 0, mm_mul_op), RT | RS | RD},
+	[insn_or]	= {M(mm_pool32a_op, 0, 0, 0, 0, mm_or32_op), RT | RS | RD},
+	[insn_ori]	= {M(mm_ori32_op, 0, 0, 0, 0, 0), RT | RS | UIMM},
+	[insn_pref]	= {M(mm_pool32c_op, 0, 0, (mm_pref_func << 1), 0, 0), RT | RS | SIMM},
+	[insn_rfe]	= {0, 0},
+	[insn_sc]	= {M(mm_pool32c_op, 0, 0, (mm_sc_func << 1), 0, 0), RT | RS | SIMM},
+	[insn_scd]	= {0, 0},
+	[insn_sd]	= {0, 0},
+	[insn_sll]	= {M(mm_pool32a_op, 0, 0, 0, 0, mm_sll32_op), RT | RS | RD},
+	[insn_sllv]	= {M(mm_pool32a_op, 0, 0, 0, 0, mm_sllv32_op), RT | RS | RD},
+	[insn_slt]	= {M(mm_pool32a_op, 0, 0, 0, 0, mm_slt_op), RT | RS | RD},
+	[insn_sltiu]	= {M(mm_sltiu32_op, 0, 0, 0, 0, 0), RT | RS | SIMM},
+	[insn_sltu]	= {M(mm_pool32a_op, 0, 0, 0, 0, mm_sltu_op), RT | RS | RD},
+	[insn_sra]	= {M(mm_pool32a_op, 0, 0, 0, 0, mm_sra_op), RT | RS | RD},
+	[insn_srl]	= {M(mm_pool32a_op, 0, 0, 0, 0, mm_srl32_op), RT | RS | RD},
+	[insn_srlv]	= {M(mm_pool32a_op, 0, 0, 0, 0, mm_srlv32_op), RT | RS | RD},
+	[insn_rotr]	= {M(mm_pool32a_op, 0, 0, 0, 0, mm_rotr_op), RT | RS | RD},
+	[insn_subu]	= {M(mm_pool32a_op, 0, 0, 0, 0, mm_subu32_op), RT | RS | RD},
+	[insn_sw]	= {M(mm_sw32_op, 0, 0, 0, 0, 0), RT | RS | SIMM},
+	[insn_sync]	= {M(mm_pool32a_op, 0, 0, 0, mm_sync_op, mm_pool32axf_op), RS},
+	[insn_tlbp]	= {M(mm_pool32a_op, 0, 0, 0, mm_tlbp_op, mm_pool32axf_op), 0},
+	[insn_tlbr]	= {M(mm_pool32a_op, 0, 0, 0, mm_tlbr_op, mm_pool32axf_op), 0},
+	[insn_tlbwi]	= {M(mm_pool32a_op, 0, 0, 0, mm_tlbwi_op, mm_pool32axf_op), 0},
+	[insn_tlbwr]	= {M(mm_pool32a_op, 0, 0, 0, mm_tlbwr_op, mm_pool32axf_op), 0},
+	[insn_wait]	= {M(mm_pool32a_op, 0, 0, 0, mm_wait_op, mm_pool32axf_op), SCIMM},
+	[insn_wsbh]	= {M(mm_pool32a_op, 0, 0, 0, mm_wsbh_op, mm_pool32axf_op), RT | RS},
+	[insn_xor]	= {M(mm_pool32a_op, 0, 0, 0, 0, mm_xor32_op), RT | RS | RD},
+	[insn_xori]	= {M(mm_xori32_op, 0, 0, 0, 0, 0), RT | RS | UIMM},
+	[insn_dins]	= {0, 0},
+	[insn_dinsm]	= {0, 0},
+	[insn_syscall]	= {M(mm_pool32a_op, 0, 0, 0, mm_syscall_op, mm_pool32axf_op), SCIMM},
+	[insn_bbit0]	= {0, 0},
+	[insn_bbit1]	= {0, 0},
+	[insn_lwx]	= {0, 0},
+	[insn_ldx]	= {0, 0},
 };
 
 #undef M
@@ -156,20 +155,17 @@ static inline u32 build_jimm(u32 arg)
  */
 static void build_insn(u32 **buf, enum opcode opc, ...)
 {
-	struct insn *ip = NULL;
-	unsigned int i;
+	const struct insn *ip;
 	va_list ap;
 	u32 op;
 
-	for (i = 0; insn_table_MM[i].opcode != insn_invalid; i++)
-		if (insn_table_MM[i].opcode == opc) {
-			ip = &insn_table_MM[i];
-			break;
-		}
-
-	if (!ip || (opc == insn_daddiu && r4k_daddiu_bug()))
+	if (opc < 0 || opc >= insn_invalid ||
+	    (opc == insn_daddiu && r4k_daddiu_bug()) ||
+	    (insn_table_MM[opc].match == 0 && insn_table_MM[opc].fields == 0))
 		panic("Unsupported Micro-assembler instruction %d", opc);
 
+	ip = &insn_table_MM[opc];
+
 	op = ip->match;
 	va_start(ap, opc);
 	if (ip->fields & RS) {
diff --git a/arch/mips/mm/uasm-mips.c b/arch/mips/mm/uasm-mips.c
index 2277499fe6ae..9fea6c6bbf49 100644
--- a/arch/mips/mm/uasm-mips.c
+++ b/arch/mips/mm/uasm-mips.c
@@ -48,126 +48,145 @@
 
 #include "uasm.c"
 
-static struct insn insn_table[] = {
-	{ insn_addiu, M(addiu_op, 0, 0, 0, 0, 0), RS | RT | SIMM },
-	{ insn_addu, M(spec_op, 0, 0, 0, 0, addu_op), RS | RT | RD },
-	{ insn_andi, M(andi_op, 0, 0, 0, 0, 0), RS | RT | UIMM },
-	{ insn_and, M(spec_op, 0, 0, 0, 0, and_op), RS | RT | RD },
-	{ insn_bbit0, M(lwc2_op, 0, 0, 0, 0, 0), RS | RT | BIMM },
-	{ insn_bbit1, M(swc2_op, 0, 0, 0, 0, 0), RS | RT | BIMM },
-	{ insn_beql, M(beql_op, 0, 0, 0, 0, 0), RS | RT | BIMM },
-	{ insn_beq, M(beq_op, 0, 0, 0, 0, 0), RS | RT | BIMM },
-	{ insn_bgezl, M(bcond_op, 0, bgezl_op, 0, 0, 0), RS | BIMM },
-	{ insn_bgez, M(bcond_op, 0, bgez_op, 0, 0, 0), RS | BIMM },
-	{ insn_bltzl, M(bcond_op, 0, bltzl_op, 0, 0, 0), RS | BIMM },
-	{ insn_bltz, M(bcond_op, 0, bltz_op, 0, 0, 0), RS | BIMM },
-	{ insn_bne, M(bne_op, 0, 0, 0, 0, 0), RS | RT | BIMM },
+static const struct insn insn_table[insn_invalid] = {
+	[insn_addiu]	= {M(addiu_op, 0, 0, 0, 0, 0), RS | RT | SIMM},
+	[insn_addu]	= {M(spec_op, 0, 0, 0, 0, addu_op), RS | RT | RD},
+	[insn_and]	= {M(spec_op, 0, 0, 0, 0, and_op), RS | RT | RD},
+	[insn_andi]	= {M(andi_op, 0, 0, 0, 0, 0), RS | RT | UIMM},
+	[insn_bbit0]	= {M(lwc2_op, 0, 0, 0, 0, 0), RS | RT | BIMM},
+	[insn_bbit1]	= {M(swc2_op, 0, 0, 0, 0, 0), RS | RT | BIMM},
+	[insn_beq]	= {M(beq_op, 0, 0, 0, 0, 0), RS | RT | BIMM},
+	[insn_beql]	= {M(beql_op, 0, 0, 0, 0, 0), RS | RT | BIMM},
+	[insn_bgez]	= {M(bcond_op, 0, bgez_op, 0, 0, 0), RS | BIMM},
+	[insn_bgezl]	= {M(bcond_op, 0, bgezl_op, 0, 0, 0), RS | BIMM},
+	[insn_bgtz]	= {M(bgtz_op, 0, 0, 0, 0, 0), RS | BIMM},
+	[insn_blez]	= {M(blez_op, 0, 0, 0, 0, 0), RS | BIMM},
+	[insn_bltz]	= {M(bcond_op, 0, bltz_op, 0, 0, 0), RS | BIMM},
+	[insn_bltzl]	= {M(bcond_op, 0, bltzl_op, 0, 0, 0), RS | BIMM},
+	[insn_bne]	= {M(bne_op, 0, 0, 0, 0, 0), RS | RT | BIMM},
+	[insn_break]	= {M(spec_op, 0, 0, 0, 0, break_op), SCIMM},
 #ifndef CONFIG_CPU_MIPSR6
-	{ insn_cache,  M(cache_op, 0, 0, 0, 0, 0),  RS | RT | SIMM },
+	[insn_cache]	= {M(cache_op, 0, 0, 0, 0, 0),  RS | RT | SIMM},
 #else
-	{ insn_cache,  M6(spec3_op, 0, 0, 0, cache6_op),  RS | RT | SIMM9 },
+	[insn_cache]	= {M6(spec3_op, 0, 0, 0, cache6_op),  RS | RT | SIMM9},
 #endif
-	{ insn_cfc1, M(cop1_op, cfc_op, 0, 0, 0, 0), RT | RD },
-	{ insn_cfcmsa, M(msa_op, 0, msa_cfc_op, 0, 0, msa_elm_op), RD | RE },
-	{ insn_ctc1, M(cop1_op, ctc_op, 0, 0, 0, 0), RT | RD },
-	{ insn_ctcmsa, M(msa_op, 0, msa_ctc_op, 0, 0, msa_elm_op), RD | RE },
-	{ insn_daddiu, M(daddiu_op, 0, 0, 0, 0, 0), RS | RT | SIMM },
-	{ insn_daddu, M(spec_op, 0, 0, 0, 0, daddu_op), RS | RT | RD },
-	{ insn_dinsm, M(spec3_op, 0, 0, 0, 0, dinsm_op), RS | RT | RD | RE },
-	{ insn_di, M(cop0_op, mfmc0_op, 0, 12, 0, 0), RT },
-	{ insn_dins, M(spec3_op, 0, 0, 0, 0, dins_op), RS | RT | RD | RE },
-	{ insn_divu, M(spec_op, 0, 0, 0, 0, divu_op), RS | RT },
-	{ insn_dmfc0, M(cop0_op, dmfc_op, 0, 0, 0, 0), RT | RD | SET},
-	{ insn_dmtc0, M(cop0_op, dmtc_op, 0, 0, 0, 0), RT | RD | SET},
-	{ insn_drotr32, M(spec_op, 1, 0, 0, 0, dsrl32_op), RT | RD | RE },
-	{ insn_drotr, M(spec_op, 1, 0, 0, 0, dsrl_op), RT | RD | RE },
-	{ insn_dsll32, M(spec_op, 0, 0, 0, 0, dsll32_op), RT | RD | RE },
-	{ insn_dsll, M(spec_op, 0, 0, 0, 0, dsll_op), RT | RD | RE },
-	{ insn_dsra, M(spec_op, 0, 0, 0, 0, dsra_op), RT | RD | RE },
-	{ insn_dsrl32, M(spec_op, 0, 0, 0, 0, dsrl32_op), RT | RD | RE },
-	{ insn_dsrl, M(spec_op, 0, 0, 0, 0, dsrl_op), RT | RD | RE },
-	{ insn_dsubu, M(spec_op, 0, 0, 0, 0, dsubu_op), RS | RT | RD },
-	{ insn_eret,  M(cop0_op, cop_op, 0, 0, 0, eret_op),  0 },
-	{ insn_ext, M(spec3_op, 0, 0, 0, 0, ext_op), RS | RT | RD | RE },
-	{ insn_ins, M(spec3_op, 0, 0, 0, 0, ins_op), RS | RT | RD | RE },
-	{ insn_j,  M(j_op, 0, 0, 0, 0, 0),  JIMM },
-	{ insn_jal,  M(jal_op, 0, 0, 0, 0, 0),	JIMM },
-	{ insn_jalr,  M(spec_op, 0, 0, 0, 0, jalr_op), RS | RD },
-	{ insn_j,  M(j_op, 0, 0, 0, 0, 0),  JIMM },
+	[insn_cfc1]	= {M(cop1_op, cfc_op, 0, 0, 0, 0), RT | RD},
+	[insn_cfcmsa]	= {M(msa_op, 0, msa_cfc_op, 0, 0, msa_elm_op), RD | RE},
+	[insn_ctc1]	= {M(cop1_op, ctc_op, 0, 0, 0, 0), RT | RD},
+	[insn_ctcmsa]	= {M(msa_op, 0, msa_ctc_op, 0, 0, msa_elm_op), RD | RE},
+	[insn_daddiu]	= {M(daddiu_op, 0, 0, 0, 0, 0), RS | RT | SIMM},
+	[insn_daddu]	= {M(spec_op, 0, 0, 0, 0, daddu_op), RS | RT | RD},
+	[insn_ddivu]	= {M(spec_op, 0, 0, 0, 0, ddivu_op), RS | RT},
+	[insn_di]	= {M(cop0_op, mfmc0_op, 0, 12, 0, 0), RT},
+	[insn_dins]	= {M(spec3_op, 0, 0, 0, 0, dins_op), RS | RT | RD | RE},
+	[insn_dinsm]	= {M(spec3_op, 0, 0, 0, 0, dinsm_op), RS | RT | RD | RE},
+	[insn_dinsu]	= {M(spec3_op, 0, 0, 0, 0, dinsu_op), RS | RT | RD | RE},
+	[insn_divu]	= {M(spec_op, 0, 0, 0, 0, divu_op), RS | RT},
+	[insn_dmfc0]	= {M(cop0_op, dmfc_op, 0, 0, 0, 0), RT | RD | SET},
+	[insn_dmtc0]	= {M(cop0_op, dmtc_op, 0, 0, 0, 0), RT | RD | SET},
+	[insn_dmultu]	= {M(spec_op, 0, 0, 0, 0, dmultu_op), RS | RT},
+	[insn_drotr]	= {M(spec_op, 1, 0, 0, 0, dsrl_op), RT | RD | RE},
+	[insn_drotr32]	= {M(spec_op, 1, 0, 0, 0, dsrl32_op), RT | RD | RE},
+	[insn_dsbh]	= {M(spec3_op, 0, 0, 0, dsbh_op, dbshfl_op), RT | RD},
+	[insn_dshd]	= {M(spec3_op, 0, 0, 0, dshd_op, dbshfl_op), RT | RD},
+	[insn_dsll]	= {M(spec_op, 0, 0, 0, 0, dsll_op), RT | RD | RE},
+	[insn_dsll32]	= {M(spec_op, 0, 0, 0, 0, dsll32_op), RT | RD | RE},
+	[insn_dsllv]	= {M(spec_op, 0, 0, 0, 0, dsllv_op),  RS | RT | RD},
+	[insn_dsra]	= {M(spec_op, 0, 0, 0, 0, dsra_op), RT | RD | RE},
+	[insn_dsra32]	= {M(spec_op, 0, 0, 0, 0, dsra32_op), RT | RD | RE},
+	[insn_dsrav]	= {M(spec_op, 0, 0, 0, 0, dsrav_op),  RS | RT | RD},
+	[insn_dsrl]	= {M(spec_op, 0, 0, 0, 0, dsrl_op), RT | RD | RE},
+	[insn_dsrl32]	= {M(spec_op, 0, 0, 0, 0, dsrl32_op), RT | RD | RE},
+	[insn_dsrlv]	= {M(spec_op, 0, 0, 0, 0, dsrlv_op),  RS | RT | RD},
+	[insn_dsubu]	= {M(spec_op, 0, 0, 0, 0, dsubu_op), RS | RT | RD},
+	[insn_eret]	= {M(cop0_op, cop_op, 0, 0, 0, eret_op),  0},
+	[insn_ext]	= {M(spec3_op, 0, 0, 0, 0, ext_op), RS | RT | RD | RE},
+	[insn_ins]	= {M(spec3_op, 0, 0, 0, 0, ins_op), RS | RT | RD | RE},
+	[insn_j]	= {M(j_op, 0, 0, 0, 0, 0),  JIMM},
+	[insn_jal]	= {M(jal_op, 0, 0, 0, 0, 0),	JIMM},
+	[insn_jalr]	= {M(spec_op, 0, 0, 0, 0, jalr_op), RS | RD},
 #ifndef CONFIG_CPU_MIPSR6
-	{ insn_jr,  M(spec_op, 0, 0, 0, 0, jr_op),  RS },
+	[insn_jr]	= {M(spec_op, 0, 0, 0, 0, jr_op),  RS},
 #else
-	{ insn_jr,  M(spec_op, 0, 0, 0, 0, jalr_op),  RS },
+	[insn_jr]	= {M(spec_op, 0, 0, 0, 0, jalr_op),  RS},
 #endif
-	{ insn_lb, M(lb_op, 0, 0, 0, 0, 0), RS | RT | SIMM },
-	{ insn_ld,  M(ld_op, 0, 0, 0, 0, 0),  RS | RT | SIMM },
-	{ insn_ldx, M(spec3_op, 0, 0, 0, ldx_op, lx_op), RS | RT | RD },
-	{ insn_lh,  M(lh_op, 0, 0, 0, 0, 0),  RS | RT | SIMM },
-	{ insn_lhu,  M(lhu_op, 0, 0, 0, 0, 0),  RS | RT | SIMM },
+	[insn_lb]	= {M(lb_op, 0, 0, 0, 0, 0), RS | RT | SIMM},
+	[insn_lbu]	= {M(lbu_op, 0, 0, 0, 0, 0), RS | RT | SIMM},
+	[insn_ld]	= {M(ld_op, 0, 0, 0, 0, 0),  RS | RT | SIMM},
+	[insn_lddir]	= {M(lwc2_op, 0, 0, 0, lddir_op, mult_op), RS | RT | RD},
+	[insn_ldpte]	= {M(lwc2_op, 0, 0, 0, ldpte_op, mult_op), RS | RD},
+	[insn_ldx]	= {M(spec3_op, 0, 0, 0, ldx_op, lx_op), RS | RT | RD},
+	[insn_lh]	= {M(lh_op, 0, 0, 0, 0, 0),  RS | RT | SIMM},
+	[insn_lhu]	= {M(lhu_op, 0, 0, 0, 0, 0),  RS | RT | SIMM},
 #ifndef CONFIG_CPU_MIPSR6
-	{ insn_lld,  M(lld_op, 0, 0, 0, 0, 0),	RS | RT | SIMM },
-	{ insn_ll,  M(ll_op, 0, 0, 0, 0, 0),  RS | RT | SIMM },
+	[insn_ll]	= {M(ll_op, 0, 0, 0, 0, 0),  RS | RT | SIMM},
+	[insn_lld]	= {M(lld_op, 0, 0, 0, 0, 0),	RS | RT | SIMM},
 #else
-	{ insn_lld,  M6(spec3_op, 0, 0, 0, lld6_op),  RS | RT | SIMM9 },
-	{ insn_ll,  M6(spec3_op, 0, 0, 0, ll6_op),  RS | RT | SIMM9 },
+	[insn_ll]	= {M6(spec3_op, 0, 0, 0, ll6_op),  RS | RT | SIMM9},
+	[insn_lld]	= {M6(spec3_op, 0, 0, 0, lld6_op),  RS | RT | SIMM9},
 #endif
-	{ insn_lui,  M(lui_op, 0, 0, 0, 0, 0),	RT | SIMM },
-	{ insn_lw,  M(lw_op, 0, 0, 0, 0, 0),  RS | RT | SIMM },
-	{ insn_lwx, M(spec3_op, 0, 0, 0, lwx_op, lx_op), RS | RT | RD },
-	{ insn_mfc0,  M(cop0_op, mfc_op, 0, 0, 0, 0),  RT | RD | SET},
-	{ insn_mfhc0,  M(cop0_op, mfhc0_op, 0, 0, 0, 0),  RT | RD | SET},
-	{ insn_mfhi,  M(spec_op, 0, 0, 0, 0, mfhi_op), RD },
-	{ insn_mflo,  M(spec_op, 0, 0, 0, 0, mflo_op), RD },
-	{ insn_mtc0,  M(cop0_op, mtc_op, 0, 0, 0, 0),  RT | RD | SET},
-	{ insn_mthc0,  M(cop0_op, mthc0_op, 0, 0, 0, 0),  RT | RD | SET},
-	{ insn_mthi,  M(spec_op, 0, 0, 0, 0, mthi_op), RS },
-	{ insn_mtlo,  M(spec_op, 0, 0, 0, 0, mtlo_op), RS },
+	[insn_lui]	= {M(lui_op, 0, 0, 0, 0, 0),	RT | SIMM},
+	[insn_lw]	= {M(lw_op, 0, 0, 0, 0, 0),  RS | RT | SIMM},
+	[insn_lwu]	= {M(lwu_op, 0, 0, 0, 0, 0),  RS | RT | SIMM},
+	[insn_lwx]	= {M(spec3_op, 0, 0, 0, lwx_op, lx_op), RS | RT | RD},
+	[insn_mfc0]	= {M(cop0_op, mfc_op, 0, 0, 0, 0),  RT | RD | SET},
+	[insn_mfhc0]	= {M(cop0_op, mfhc0_op, 0, 0, 0, 0),  RT | RD | SET},
+	[insn_mfhi]	= {M(spec_op, 0, 0, 0, 0, mfhi_op), RD},
+	[insn_mflo]	= {M(spec_op, 0, 0, 0, 0, mflo_op), RD},
+	[insn_movn]	= {M(spec_op, 0, 0, 0, 0, movn_op), RS | RT | RD},
+	[insn_movz]	= {M(spec_op, 0, 0, 0, 0, movz_op), RS | RT | RD},
+	[insn_mtc0]	= {M(cop0_op, mtc_op, 0, 0, 0, 0),  RT | RD | SET},
+	[insn_mthc0]	= {M(cop0_op, mthc0_op, 0, 0, 0, 0),  RT | RD | SET},
+	[insn_mthi]	= {M(spec_op, 0, 0, 0, 0, mthi_op), RS},
+	[insn_mtlo]	= {M(spec_op, 0, 0, 0, 0, mtlo_op), RS},
 #ifndef CONFIG_CPU_MIPSR6
-	{ insn_mul, M(spec2_op, 0, 0, 0, 0, mul_op), RS | RT | RD},
+	[insn_mul]	= {M(spec2_op, 0, 0, 0, 0, mul_op), RS | RT | RD},
 #else
-	{ insn_mul, M(spec_op, 0, 0, 0, mult_mul_op, mult_op), RS | RT | RD},
+	[insn_mul]	= {M(spec_op, 0, 0, 0, mult_mul_op, mult_op), RS | RT | RD},
 #endif
-	{ insn_ori,  M(ori_op, 0, 0, 0, 0, 0),	RS | RT | UIMM },
-	{ insn_or,  M(spec_op, 0, 0, 0, 0, or_op),  RS | RT | RD },
+	[insn_multu]	= {M(spec_op, 0, 0, 0, 0, multu_op), RS | RT},
+	[insn_nor]	= {M(spec_op, 0, 0, 0, 0, nor_op),  RS | RT | RD},
+	[insn_or]	= {M(spec_op, 0, 0, 0, 0, or_op),  RS | RT | RD},
+	[insn_ori]	= {M(ori_op, 0, 0, 0, 0, 0),	RS | RT | UIMM},
 #ifndef CONFIG_CPU_MIPSR6
-	{ insn_pref,  M(pref_op, 0, 0, 0, 0, 0),  RS | RT | SIMM },
+	[insn_pref]	= {M(pref_op, 0, 0, 0, 0, 0),  RS | RT | SIMM},
 #else
-	{ insn_pref,  M6(spec3_op, 0, 0, 0, pref6_op),  RS | RT | SIMM9 },
+	[insn_pref]	= {M6(spec3_op, 0, 0, 0, pref6_op),  RS | RT | SIMM9},
 #endif
-	{ insn_rfe,  M(cop0_op, cop_op, 0, 0, 0, rfe_op),  0 },
-	{ insn_rotr,  M(spec_op, 1, 0, 0, 0, srl_op),  RT | RD | RE },
+	[insn_rfe]	= {M(cop0_op, cop_op, 0, 0, 0, rfe_op),  0},
+	[insn_rotr]	= {M(spec_op, 1, 0, 0, 0, srl_op),  RT | RD | RE},
+	[insn_sb]	= {M(sb_op, 0, 0, 0, 0, 0),  RS | RT | SIMM},
 #ifndef CONFIG_CPU_MIPSR6
-	{ insn_scd,  M(scd_op, 0, 0, 0, 0, 0),	RS | RT | SIMM },
-	{ insn_sc,  M(sc_op, 0, 0, 0, 0, 0),  RS | RT | SIMM },
+	[insn_sc]	= {M(sc_op, 0, 0, 0, 0, 0),  RS | RT | SIMM},
+	[insn_scd]	= {M(scd_op, 0, 0, 0, 0, 0),	RS | RT | SIMM},
 #else
-	{ insn_scd,  M6(spec3_op, 0, 0, 0, scd6_op),  RS | RT | SIMM9 },
-	{ insn_sc,  M6(spec3_op, 0, 0, 0, sc6_op),  RS | RT | SIMM9 },
+	[insn_sc]	= {M6(spec3_op, 0, 0, 0, sc6_op),  RS | RT | SIMM9},
+	[insn_scd]	= {M6(spec3_op, 0, 0, 0, scd6_op),  RS | RT | SIMM9},
 #endif
-	{ insn_sd,  M(sd_op, 0, 0, 0, 0, 0),  RS | RT | SIMM },
-	{ insn_sll,  M(spec_op, 0, 0, 0, 0, sll_op),  RT | RD | RE },
-	{ insn_sllv,  M(spec_op, 0, 0, 0, 0, sllv_op),  RS | RT | RD },
-	{ insn_slt,  M(spec_op, 0, 0, 0, 0, slt_op),  RS | RT | RD },
-	{ insn_sltiu, M(sltiu_op, 0, 0, 0, 0, 0), RS | RT | SIMM },
-	{ insn_sltu, M(spec_op, 0, 0, 0, 0, sltu_op), RS | RT | RD },
-	{ insn_sra,  M(spec_op, 0, 0, 0, 0, sra_op),  RT | RD | RE },
-	{ insn_srl,  M(spec_op, 0, 0, 0, 0, srl_op),  RT | RD | RE },
-	{ insn_srlv,  M(spec_op, 0, 0, 0, 0, srlv_op),  RS | RT | RD },
-	{ insn_subu,  M(spec_op, 0, 0, 0, 0, subu_op),	RS | RT | RD },
-	{ insn_sw,  M(sw_op, 0, 0, 0, 0, 0),  RS | RT | SIMM },
-	{ insn_sync, M(spec_op, 0, 0, 0, 0, sync_op), RE },
-	{ insn_syscall, M(spec_op, 0, 0, 0, 0, syscall_op), SCIMM},
-	{ insn_tlbp,  M(cop0_op, cop_op, 0, 0, 0, tlbp_op),  0 },
-	{ insn_tlbr,  M(cop0_op, cop_op, 0, 0, 0, tlbr_op),  0 },
-	{ insn_tlbwi,  M(cop0_op, cop_op, 0, 0, 0, tlbwi_op),  0 },
-	{ insn_tlbwr,  M(cop0_op, cop_op, 0, 0, 0, tlbwr_op),  0 },
-	{ insn_wait, M(cop0_op, cop_op, 0, 0, 0, wait_op), SCIMM },
-	{ insn_wsbh, M(spec3_op, 0, 0, 0, wsbh_op, bshfl_op), RT | RD },
-	{ insn_xori,  M(xori_op, 0, 0, 0, 0, 0),  RS | RT | UIMM },
-	{ insn_xor,  M(spec_op, 0, 0, 0, 0, xor_op),  RS | RT | RD },
-	{ insn_yield, M(spec3_op, 0, 0, 0, 0, yield_op), RS | RD },
-	{ insn_ldpte, M(lwc2_op, 0, 0, 0, ldpte_op, mult_op), RS | RD },
-	{ insn_lddir, M(lwc2_op, 0, 0, 0, lddir_op, mult_op), RS | RT | RD },
-	{ insn_invalid, 0, 0 }
+	[insn_sd]	= {M(sd_op, 0, 0, 0, 0, 0),  RS | RT | SIMM},
+	[insn_sh]	= {M(sh_op, 0, 0, 0, 0, 0),  RS | RT | SIMM},
+	[insn_sll]	= {M(spec_op, 0, 0, 0, 0, sll_op),  RT | RD | RE},
+	[insn_sllv]	= {M(spec_op, 0, 0, 0, 0, sllv_op),  RS | RT | RD},
+	[insn_slt]	= {M(spec_op, 0, 0, 0, 0, slt_op),  RS | RT | RD},
+	[insn_slti]	= {M(slti_op, 0, 0, 0, 0, 0), RS | RT | SIMM},
+	[insn_sltiu]	= {M(sltiu_op, 0, 0, 0, 0, 0), RS | RT | SIMM},
+	[insn_sltu]	= {M(spec_op, 0, 0, 0, 0, sltu_op), RS | RT | RD},
+	[insn_sra]	= {M(spec_op, 0, 0, 0, 0, sra_op),  RT | RD | RE},
+	[insn_srl]	= {M(spec_op, 0, 0, 0, 0, srl_op),  RT | RD | RE},
+	[insn_srlv]	= {M(spec_op, 0, 0, 0, 0, srlv_op),  RS | RT | RD},
+	[insn_subu]	= {M(spec_op, 0, 0, 0, 0, subu_op),	RS | RT | RD},
+	[insn_sw]	= {M(sw_op, 0, 0, 0, 0, 0),  RS | RT | SIMM},
+	[insn_sync]	= {M(spec_op, 0, 0, 0, 0, sync_op), RE},
+	[insn_syscall]	= {M(spec_op, 0, 0, 0, 0, syscall_op), SCIMM},
+	[insn_tlbp]	= {M(cop0_op, cop_op, 0, 0, 0, tlbp_op),  0},
+	[insn_tlbr]	= {M(cop0_op, cop_op, 0, 0, 0, tlbr_op),  0},
+	[insn_tlbwi]	= {M(cop0_op, cop_op, 0, 0, 0, tlbwi_op),  0},
+	[insn_tlbwr]	= {M(cop0_op, cop_op, 0, 0, 0, tlbwr_op),  0},
+	[insn_wait]	= {M(cop0_op, cop_op, 0, 0, 0, wait_op), SCIMM},
+	[insn_wsbh]	= {M(spec3_op, 0, 0, 0, wsbh_op, bshfl_op), RT | RD},
+	[insn_xor]	= {M(spec_op, 0, 0, 0, 0, xor_op),  RS | RT | RD},
+	[insn_xori]	= {M(xori_op, 0, 0, 0, 0, 0),  RS | RT | UIMM},
+	[insn_yield]	= {M(spec3_op, 0, 0, 0, 0, yield_op), RS | RD},
 };
 
 #undef M
@@ -196,20 +215,17 @@ static inline u32 build_jimm(u32 arg)
  */
 static void build_insn(u32 **buf, enum opcode opc, ...)
 {
-	struct insn *ip = NULL;
-	unsigned int i;
+	const struct insn *ip;
 	va_list ap;
 	u32 op;
 
-	for (i = 0; insn_table[i].opcode != insn_invalid; i++)
-		if (insn_table[i].opcode == opc) {
-			ip = &insn_table[i];
-			break;
-		}
-
-	if (!ip || (opc == insn_daddiu && r4k_daddiu_bug()))
+	if (opc < 0 || opc >= insn_invalid ||
+	    (opc == insn_daddiu && r4k_daddiu_bug()) ||
+	    (insn_table[opc].match == 0 && insn_table[opc].fields == 0))
 		panic("Unsupported Micro-assembler instruction %d", opc);
 
+	ip = &insn_table[opc];
+
 	op = ip->match;
 	va_start(ap, opc);
 	if (ip->fields & RS)
diff --git a/arch/mips/mm/uasm.c b/arch/mips/mm/uasm.c
index 730363b59bac..57570c0649b4 100644
--- a/arch/mips/mm/uasm.c
+++ b/arch/mips/mm/uasm.c
@@ -46,26 +46,29 @@ enum fields {
 #define SIMM9_MASK	0x1ff
 
 enum opcode {
-	insn_invalid,
 	insn_addiu, insn_addu, insn_and, insn_andi, insn_bbit0, insn_bbit1,
-	insn_beq, insn_beql, insn_bgez, insn_bgezl, insn_bltz, insn_bltzl,
-	insn_bne, insn_cache, insn_cfc1, insn_cfcmsa, insn_ctc1, insn_ctcmsa,
-	insn_daddiu, insn_daddu, insn_di, insn_dins, insn_dinsm, insn_divu,
-	insn_dmfc0, insn_dmtc0, insn_drotr, insn_drotr32, insn_dsll,
-	insn_dsll32, insn_dsra, insn_dsrl, insn_dsrl32, insn_dsubu, insn_eret,
-	insn_ext, insn_ins, insn_j, insn_jal, insn_jalr, insn_jr, insn_lb,
-	insn_ld, insn_ldx, insn_lh, insn_ll, insn_lld, insn_lui, insn_lw,
-	insn_lwx, insn_mfc0, insn_mfhc0, insn_mfhi, insn_mflo, insn_mtc0,
-	insn_mthc0, insn_mthi, insn_mtlo, insn_mul, insn_or, insn_ori,
-	insn_pref, insn_rfe, insn_rotr, insn_sc, insn_scd, insn_sd, insn_sll,
-	insn_sllv, insn_slt, insn_sltiu, insn_sltu, insn_sra, insn_srl,
+	insn_beq, insn_beql, insn_bgez, insn_bgezl, insn_bgtz, insn_blez,
+	insn_bltz, insn_bltzl, insn_bne, insn_break, insn_cache, insn_cfc1,
+	insn_cfcmsa, insn_ctc1, insn_ctcmsa, insn_daddiu, insn_daddu, insn_ddivu,
+	insn_di, insn_dins, insn_dinsm, insn_dinsu, insn_divu, insn_dmfc0,
+	insn_dmtc0, insn_dmultu, insn_drotr, insn_drotr32, insn_dsbh, insn_dshd,
+	insn_dsll, insn_dsll32, insn_dsllv, insn_dsra, insn_dsra32, insn_dsrav,
+	insn_dsrl, insn_dsrl32, insn_dsrlv, insn_dsubu, insn_eret, insn_ext,
+	insn_ins, insn_j, insn_jal, insn_jalr, insn_jr, insn_lb, insn_lbu,
+	insn_ld, insn_lddir, insn_ldpte, insn_ldx, insn_lh, insn_lhu,
+	insn_ll, insn_lld, insn_lui, insn_lw, insn_lwu, insn_lwx, insn_mfc0,
+	insn_mfhc0, insn_mfhi, insn_mflo, insn_movn, insn_movz, insn_mtc0,
+	insn_mthc0, insn_mthi, insn_mtlo, insn_mul, insn_multu, insn_nor,
+	insn_or, insn_ori, insn_pref, insn_rfe, insn_rotr, insn_sb,
+	insn_sc, insn_scd, insn_sd, insn_sh, insn_sll, insn_sllv,
+	insn_slt, insn_slti, insn_sltiu, insn_sltu, insn_sra, insn_srl,
 	insn_srlv, insn_subu, insn_sw, insn_sync, insn_syscall, insn_tlbp,
 	insn_tlbr, insn_tlbwi, insn_tlbwr, insn_wait, insn_wsbh, insn_xor,
-	insn_xori, insn_yield, insn_lddir, insn_ldpte, insn_lhu,
+	insn_xori, insn_yield,
+	insn_invalid /* insn_invalid must be last */
 };
 
 struct insn {
-	enum opcode opcode;
 	u32 match;
 	enum fields fields;
 };
@@ -215,6 +218,13 @@ Ip_u2u1msbu3(op)					\
 }							\
 UASM_EXPORT_SYMBOL(uasm_i##op);
 
+#define I_u2u1msb32msb3(op)				\
+Ip_u2u1msbu3(op)					\
+{							\
+	build_insn(buf, insn##op, b, a, c+d-33, c-32);	\
+}							\
+UASM_EXPORT_SYMBOL(uasm_i##op);
+
 #define I_u2u1msbdu3(op)				\
 Ip_u2u1msbu3(op)					\
 {							\
@@ -265,25 +275,36 @@ I_u1u2s3(_beq)
 I_u1u2s3(_beql)
 I_u1s2(_bgez)
 I_u1s2(_bgezl)
+I_u1s2(_bgtz)
+I_u1s2(_blez)
 I_u1s2(_bltz)
 I_u1s2(_bltzl)
 I_u1u2s3(_bne)
+I_u1(_break)
 I_u2s3u1(_cache)
 I_u1u2(_cfc1)
 I_u2u1(_cfcmsa)
 I_u1u2(_ctc1)
 I_u2u1(_ctcmsa)
+I_u1u2(_ddivu)
 I_u1u2u3(_dmfc0)
 I_u1u2u3(_dmtc0)
+I_u1u2(_dmultu)
 I_u2u1s3(_daddiu)
 I_u3u1u2(_daddu)
 I_u1(_di);
 I_u1u2(_divu)
+I_u2u1(_dsbh);
+I_u2u1(_dshd);
 I_u2u1u3(_dsll)
 I_u2u1u3(_dsll32)
+I_u3u2u1(_dsllv)
 I_u2u1u3(_dsra)
+I_u2u1u3(_dsra32)
+I_u3u2u1(_dsrav)
 I_u2u1u3(_dsrl)
 I_u2u1u3(_dsrl32)
+I_u3u2u1(_dsrlv)
 I_u2u1u3(_drotr)
 I_u2u1u3(_drotr32)
 I_u3u1u2(_dsubu)
@@ -295,6 +316,7 @@ I_u1(_jal)
 I_u2u1(_jalr)
 I_u1(_jr)
 I_u2s3u1(_lb)
+I_u2s3u1(_lbu)
 I_u2s3u1(_ld)
 I_u2s3u1(_lh)
 I_u2s3u1(_lhu)
@@ -302,8 +324,11 @@ I_u2s3u1(_ll)
 I_u2s3u1(_lld)
 I_u1s2(_lui)
 I_u2s3u1(_lw)
+I_u2s3u1(_lwu)
 I_u1u2u3(_mfc0)
 I_u1u2u3(_mfhc0)
+I_u3u1u2(_movn)
+I_u3u1u2(_movz)
 I_u1(_mfhi)
 I_u1(_mflo)
 I_u1u2u3(_mtc0)
@@ -311,15 +336,20 @@ I_u1u2u3(_mthc0)
 I_u1(_mthi)
 I_u1(_mtlo)
 I_u3u1u2(_mul)
-I_u2u1u3(_ori)
+I_u1u2(_multu)
+I_u3u1u2(_nor)
 I_u3u1u2(_or)
+I_u2u1u3(_ori)
 I_0(_rfe)
+I_u2s3u1(_sb)
 I_u2s3u1(_sc)
 I_u2s3u1(_scd)
 I_u2s3u1(_sd)
+I_u2s3u1(_sh)
 I_u2u1u3(_sll)
 I_u3u2u1(_sllv)
 I_s3s1s2(_slt)
+I_u2u1s3(_slti)
 I_u2u1s3(_sltiu)
 I_u3u1u2(_sltu)
 I_u2u1u3(_sra)
@@ -340,6 +370,7 @@ I_u2u1u3(_xori)
 I_u2u1(_yield)
 I_u2u1msbu3(_dins);
 I_u2u1msb32u3(_dinsm);
+I_u2u1msb32msb3(_dinsu);
 I_u1(_syscall);
 I_u1u2s3(_bbit0);
 I_u1u2s3(_bbit1);
diff --git a/arch/mips/net/Makefile b/arch/mips/net/Makefile
index 8c2771401f54..47d678416715 100644
--- a/arch/mips/net/Makefile
+++ b/arch/mips/net/Makefile
@@ -1,3 +1,4 @@
 # MIPS networking code
 
-obj-$(CONFIG_BPF_JIT) += bpf_jit.o bpf_jit_asm.o
+obj-$(CONFIG_MIPS_CBPF_JIT) += bpf_jit.o bpf_jit_asm.o
+obj-$(CONFIG_MIPS_EBPF_JIT) += ebpf_jit.o
diff --git a/arch/mips/net/ebpf_jit.c b/arch/mips/net/ebpf_jit.c
new file mode 100644
index 000000000000..3f87b96da5c4
--- /dev/null
+++ b/arch/mips/net/ebpf_jit.c
@@ -0,0 +1,1950 @@
+/*
+ * Just-In-Time compiler for eBPF filters on MIPS
+ *
+ * Copyright (c) 2017 Cavium, Inc.
+ *
+ * Based on code from:
+ *
+ * Copyright (c) 2014 Imagination Technologies Ltd.
+ * Author: Markos Chandras <markos.chandras@imgtec.com>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; version 2 of the License.
+ */
+
+#include <linux/bitops.h>
+#include <linux/errno.h>
+#include <linux/filter.h>
+#include <linux/bpf.h>
+#include <linux/slab.h>
+#include <asm/bitops.h>
+#include <asm/byteorder.h>
+#include <asm/cacheflush.h>
+#include <asm/cpu-features.h>
+#include <asm/uasm.h>
+
+/* Registers used by JIT */
+#define MIPS_R_ZERO	0
+#define MIPS_R_AT	1
+#define MIPS_R_V0	2	/* BPF_R0 */
+#define MIPS_R_V1	3
+#define MIPS_R_A0	4	/* BPF_R1 */
+#define MIPS_R_A1	5	/* BPF_R2 */
+#define MIPS_R_A2	6	/* BPF_R3 */
+#define MIPS_R_A3	7	/* BPF_R4 */
+#define MIPS_R_A4	8	/* BPF_R5 */
+#define MIPS_R_T4	12	/* BPF_AX */
+#define MIPS_R_T5	13
+#define MIPS_R_T6	14
+#define MIPS_R_T7	15
+#define MIPS_R_S0	16	/* BPF_R6 */
+#define MIPS_R_S1	17	/* BPF_R7 */
+#define MIPS_R_S2	18	/* BPF_R8 */
+#define MIPS_R_S3	19	/* BPF_R9 */
+#define MIPS_R_S4	20	/* BPF_TCC */
+#define MIPS_R_S5	21
+#define MIPS_R_S6	22
+#define MIPS_R_S7	23
+#define MIPS_R_T8	24
+#define MIPS_R_T9	25
+#define MIPS_R_SP	29
+#define MIPS_R_RA	31
+
+/* eBPF flags */
+#define EBPF_SAVE_S0	BIT(0)
+#define EBPF_SAVE_S1	BIT(1)
+#define EBPF_SAVE_S2	BIT(2)
+#define EBPF_SAVE_S3	BIT(3)
+#define EBPF_SAVE_S4	BIT(4)
+#define EBPF_SAVE_RA	BIT(5)
+#define EBPF_SEEN_FP	BIT(6)
+#define EBPF_SEEN_TC	BIT(7)
+#define EBPF_TCC_IN_V1	BIT(8)
+
+/*
+ * For the mips64 ISA, we need to track the value range or type for
+ * each JIT register.  The BPF machine requires zero extended 32-bit
+ * values, but the mips64 ISA requires sign extended 32-bit values.
+ * At each point in the BPF program we track the state of every
+ * register so that we can zero extend or sign extend as the BPF
+ * semantics require.
+ */
+enum reg_val_type {
+	/* uninitialized */
+	REG_UNKNOWN,
+	/* not known to be 32-bit compatible. */
+	REG_64BIT,
+	/* 32-bit compatible, no truncation needed for 64-bit ops. */
+	REG_64BIT_32BIT,
+	/* 32-bit compatible, need truncation for 64-bit ops. */
+	REG_32BIT,
+	/* 32-bit zero extended. */
+	REG_32BIT_ZERO_EX,
+	/* 32-bit no sign/zero extension needed. */
+	REG_32BIT_POS
+};
+
+/*
+ * high bit of offsets indicates if long branch conversion done at
+ * this insn.
+ */
+#define OFFSETS_B_CONV	BIT(31)
+
+/**
+ * struct jit_ctx - JIT context
+ * @skf:		The sk_filter
+ * @stack_size:		eBPF stack size
+ * @tmp_offset:		eBPF $sp offset to 8-byte temporary memory
+ * @idx:		Instruction index
+ * @flags:		JIT flags
+ * @offsets:		Instruction offsets
+ * @target:		Memory location for the compiled filter
+ * @reg_val_types	Packed enum reg_val_type for each register.
+ */
+struct jit_ctx {
+	const struct bpf_prog *skf;
+	int stack_size;
+	int tmp_offset;
+	u32 idx;
+	u32 flags;
+	u32 *offsets;
+	u32 *target;
+	u64 *reg_val_types;
+	unsigned int long_b_conversion:1;
+	unsigned int gen_b_offsets:1;
+};
+
+static void set_reg_val_type(u64 *rvt, int reg, enum reg_val_type type)
+{
+	*rvt &= ~(7ull << (reg * 3));
+	*rvt |= ((u64)type << (reg * 3));
+}
+
+static enum reg_val_type get_reg_val_type(const struct jit_ctx *ctx,
+					  int index, int reg)
+{
+	return (ctx->reg_val_types[index] >> (reg * 3)) & 7;
+}
+
+/* Simply emit the instruction if the JIT memory space has been allocated */
+#define emit_instr(ctx, func, ...)			\
+do {							\
+	if ((ctx)->target != NULL) {			\
+		u32 *p = &(ctx)->target[ctx->idx];	\
+		uasm_i_##func(&p, ##__VA_ARGS__);	\
+	}						\
+	(ctx)->idx++;					\
+} while (0)
+
+static unsigned int j_target(struct jit_ctx *ctx, int target_idx)
+{
+	unsigned long target_va, base_va;
+	unsigned int r;
+
+	if (!ctx->target)
+		return 0;
+
+	base_va = (unsigned long)ctx->target;
+	target_va = base_va + (ctx->offsets[target_idx] & ~OFFSETS_B_CONV);
+
+	if ((base_va & ~0x0ffffffful) != (target_va & ~0x0ffffffful))
+		return (unsigned int)-1;
+	r = target_va & 0x0ffffffful;
+	return r;
+}
+
+/* Compute the immediate value for PC-relative branches. */
+static u32 b_imm(unsigned int tgt, struct jit_ctx *ctx)
+{
+	if (!ctx->gen_b_offsets)
+		return 0;
+
+	/*
+	 * We want a pc-relative branch.  tgt is the instruction offset
+	 * we want to jump to.
+
+	 * Branch on MIPS:
+	 * I: target_offset <- sign_extend(offset)
+	 * I+1: PC += target_offset (delay slot)
+	 *
+	 * ctx->idx currently points to the branch instruction
+	 * but the offset is added to the delay slot so we need
+	 * to subtract 4.
+	 */
+	return (ctx->offsets[tgt] & ~OFFSETS_B_CONV) -
+		(ctx->idx * 4) - 4;
+}
+
+int bpf_jit_enable __read_mostly;
+
+enum which_ebpf_reg {
+	src_reg,
+	src_reg_no_fp,
+	dst_reg,
+	dst_reg_fp_ok
+};
+
+/*
+ * For eBPF, the register mapping naturally falls out of the
+ * requirements of eBPF and the MIPS n64 ABI.  We don't maintain a
+ * separate frame pointer, so BPF_REG_10 relative accesses are
+ * adjusted to be $sp relative.
+ */
+int ebpf_to_mips_reg(struct jit_ctx *ctx, const struct bpf_insn *insn,
+		     enum which_ebpf_reg w)
+{
+	int ebpf_reg = (w == src_reg || w == src_reg_no_fp) ?
+		insn->src_reg : insn->dst_reg;
+
+	switch (ebpf_reg) {
+	case BPF_REG_0:
+		return MIPS_R_V0;
+	case BPF_REG_1:
+		return MIPS_R_A0;
+	case BPF_REG_2:
+		return MIPS_R_A1;
+	case BPF_REG_3:
+		return MIPS_R_A2;
+	case BPF_REG_4:
+		return MIPS_R_A3;
+	case BPF_REG_5:
+		return MIPS_R_A4;
+	case BPF_REG_6:
+		ctx->flags |= EBPF_SAVE_S0;
+		return MIPS_R_S0;
+	case BPF_REG_7:
+		ctx->flags |= EBPF_SAVE_S1;
+		return MIPS_R_S1;
+	case BPF_REG_8:
+		ctx->flags |= EBPF_SAVE_S2;
+		return MIPS_R_S2;
+	case BPF_REG_9:
+		ctx->flags |= EBPF_SAVE_S3;
+		return MIPS_R_S3;
+	case BPF_REG_10:
+		if (w == dst_reg || w == src_reg_no_fp)
+			goto bad_reg;
+		ctx->flags |= EBPF_SEEN_FP;
+		/*
+		 * Needs special handling, return something that
+		 * cannot be clobbered just in case.
+		 */
+		return MIPS_R_ZERO;
+	case BPF_REG_AX:
+		return MIPS_R_T4;
+	default:
+bad_reg:
+		WARN(1, "Illegal bpf reg: %d\n", ebpf_reg);
+		return -EINVAL;
+	}
+}
+/*
+ * eBPF stack frame will be something like:
+ *
+ *  Entry $sp ------>   +--------------------------------+
+ *                      |   $ra  (optional)              |
+ *                      +--------------------------------+
+ *                      |   $s0  (optional)              |
+ *                      +--------------------------------+
+ *                      |   $s1  (optional)              |
+ *                      +--------------------------------+
+ *                      |   $s2  (optional)              |
+ *                      +--------------------------------+
+ *                      |   $s3  (optional)              |
+ *                      +--------------------------------+
+ *                      |   $s4  (optional)              |
+ *                      +--------------------------------+
+ *                      |   tmp-storage  (if $ra saved)  |
+ * $sp + tmp_offset --> +--------------------------------+ <--BPF_REG_10
+ *                      |   BPF_REG_10 relative storage  |
+ *                      |    MAX_BPF_STACK (optional)    |
+ *                      |      .                         |
+ *                      |      .                         |
+ *                      |      .                         |
+ *     $sp -------->    +--------------------------------+
+ *
+ * If BPF_REG_10 is never referenced, then the MAX_BPF_STACK sized
+ * area is not allocated.
+ */
+static int gen_int_prologue(struct jit_ctx *ctx)
+{
+	int stack_adjust = 0;
+	int store_offset;
+	int locals_size;
+
+	if (ctx->flags & EBPF_SAVE_RA)
+		/*
+		 * If RA we are doing a function call and may need
+		 * extra 8-byte tmp area.
+		 */
+		stack_adjust += 16;
+	if (ctx->flags & EBPF_SAVE_S0)
+		stack_adjust += 8;
+	if (ctx->flags & EBPF_SAVE_S1)
+		stack_adjust += 8;
+	if (ctx->flags & EBPF_SAVE_S2)
+		stack_adjust += 8;
+	if (ctx->flags & EBPF_SAVE_S3)
+		stack_adjust += 8;
+	if (ctx->flags & EBPF_SAVE_S4)
+		stack_adjust += 8;
+
+	BUILD_BUG_ON(MAX_BPF_STACK & 7);
+	locals_size = (ctx->flags & EBPF_SEEN_FP) ? MAX_BPF_STACK : 0;
+
+	stack_adjust += locals_size;
+	ctx->tmp_offset = locals_size;
+
+	ctx->stack_size = stack_adjust;
+
+	/*
+	 * First instruction initializes the tail call count (TCC).
+	 * On tail call we skip this instruction, and the TCC is
+	 * passed in $v1 from the caller.
+	 */
+	emit_instr(ctx, daddiu, MIPS_R_V1, MIPS_R_ZERO, MAX_TAIL_CALL_CNT);
+	if (stack_adjust)
+		emit_instr(ctx, daddiu, MIPS_R_SP, MIPS_R_SP, -stack_adjust);
+	else
+		return 0;
+
+	store_offset = stack_adjust - 8;
+
+	if (ctx->flags & EBPF_SAVE_RA) {
+		emit_instr(ctx, sd, MIPS_R_RA, store_offset, MIPS_R_SP);
+		store_offset -= 8;
+	}
+	if (ctx->flags & EBPF_SAVE_S0) {
+		emit_instr(ctx, sd, MIPS_R_S0, store_offset, MIPS_R_SP);
+		store_offset -= 8;
+	}
+	if (ctx->flags & EBPF_SAVE_S1) {
+		emit_instr(ctx, sd, MIPS_R_S1, store_offset, MIPS_R_SP);
+		store_offset -= 8;
+	}
+	if (ctx->flags & EBPF_SAVE_S2) {
+		emit_instr(ctx, sd, MIPS_R_S2, store_offset, MIPS_R_SP);
+		store_offset -= 8;
+	}
+	if (ctx->flags & EBPF_SAVE_S3) {
+		emit_instr(ctx, sd, MIPS_R_S3, store_offset, MIPS_R_SP);
+		store_offset -= 8;
+	}
+	if (ctx->flags & EBPF_SAVE_S4) {
+		emit_instr(ctx, sd, MIPS_R_S4, store_offset, MIPS_R_SP);
+		store_offset -= 8;
+	}
+
+	if ((ctx->flags & EBPF_SEEN_TC) && !(ctx->flags & EBPF_TCC_IN_V1))
+		emit_instr(ctx, daddu, MIPS_R_S4, MIPS_R_V1, MIPS_R_ZERO);
+
+	return 0;
+}
+
+static int build_int_epilogue(struct jit_ctx *ctx, int dest_reg)
+{
+	const struct bpf_prog *prog = ctx->skf;
+	int stack_adjust = ctx->stack_size;
+	int store_offset = stack_adjust - 8;
+	int r0 = MIPS_R_V0;
+
+	if (dest_reg == MIPS_R_RA &&
+	    get_reg_val_type(ctx, prog->len, BPF_REG_0) == REG_32BIT_ZERO_EX)
+		/* Don't let zero extended value escape. */
+		emit_instr(ctx, sll, r0, r0, 0);
+
+	if (ctx->flags & EBPF_SAVE_RA) {
+		emit_instr(ctx, ld, MIPS_R_RA, store_offset, MIPS_R_SP);
+		store_offset -= 8;
+	}
+	if (ctx->flags & EBPF_SAVE_S0) {
+		emit_instr(ctx, ld, MIPS_R_S0, store_offset, MIPS_R_SP);
+		store_offset -= 8;
+	}
+	if (ctx->flags & EBPF_SAVE_S1) {
+		emit_instr(ctx, ld, MIPS_R_S1, store_offset, MIPS_R_SP);
+		store_offset -= 8;
+	}
+	if (ctx->flags & EBPF_SAVE_S2) {
+		emit_instr(ctx, ld, MIPS_R_S2, store_offset, MIPS_R_SP);
+		store_offset -= 8;
+	}
+	if (ctx->flags & EBPF_SAVE_S3) {
+		emit_instr(ctx, ld, MIPS_R_S3, store_offset, MIPS_R_SP);
+		store_offset -= 8;
+	}
+	if (ctx->flags & EBPF_SAVE_S4) {
+		emit_instr(ctx, ld, MIPS_R_S4, store_offset, MIPS_R_SP);
+		store_offset -= 8;
+	}
+	emit_instr(ctx, jr, dest_reg);
+
+	if (stack_adjust)
+		emit_instr(ctx, daddiu, MIPS_R_SP, MIPS_R_SP, stack_adjust);
+	else
+		emit_instr(ctx, nop);
+
+	return 0;
+}
+
+static void gen_imm_to_reg(const struct bpf_insn *insn, int reg,
+			   struct jit_ctx *ctx)
+{
+	if (insn->imm >= S16_MIN && insn->imm <= S16_MAX) {
+		emit_instr(ctx, addiu, reg, MIPS_R_ZERO, insn->imm);
+	} else {
+		int lower = (s16)(insn->imm & 0xffff);
+		int upper = insn->imm - lower;
+
+		emit_instr(ctx, lui, reg, upper >> 16);
+		emit_instr(ctx, addiu, reg, reg, lower);
+	}
+
+}
+
+static int gen_imm_insn(const struct bpf_insn *insn, struct jit_ctx *ctx,
+			int idx)
+{
+	int upper_bound, lower_bound;
+	int dst = ebpf_to_mips_reg(ctx, insn, dst_reg);
+
+	if (dst < 0)
+		return dst;
+
+	switch (BPF_OP(insn->code)) {
+	case BPF_MOV:
+	case BPF_ADD:
+		upper_bound = S16_MAX;
+		lower_bound = S16_MIN;
+		break;
+	case BPF_SUB:
+		upper_bound = -(int)S16_MIN;
+		lower_bound = -(int)S16_MAX;
+		break;
+	case BPF_AND:
+	case BPF_OR:
+	case BPF_XOR:
+		upper_bound = 0xffff;
+		lower_bound = 0;
+		break;
+	case BPF_RSH:
+	case BPF_LSH:
+	case BPF_ARSH:
+		/* Shift amounts are truncated, no need for bounds */
+		upper_bound = S32_MAX;
+		lower_bound = S32_MIN;
+		break;
+	default:
+		return -EINVAL;
+	}
+
+	/*
+	 * Immediate move clobbers the register, so no sign/zero
+	 * extension needed.
+	 */
+	if (BPF_CLASS(insn->code) == BPF_ALU64 &&
+	    BPF_OP(insn->code) != BPF_MOV &&
+	    get_reg_val_type(ctx, idx, insn->dst_reg) == REG_32BIT)
+		emit_instr(ctx, dinsu, dst, MIPS_R_ZERO, 32, 32);
+	/* BPF_ALU | BPF_LSH doesn't need separate sign extension */
+	if (BPF_CLASS(insn->code) == BPF_ALU &&
+	    BPF_OP(insn->code) != BPF_LSH &&
+	    BPF_OP(insn->code) != BPF_MOV &&
+	    get_reg_val_type(ctx, idx, insn->dst_reg) != REG_32BIT)
+		emit_instr(ctx, sll, dst, dst, 0);
+
+	if (insn->imm >= lower_bound && insn->imm <= upper_bound) {
+		/* single insn immediate case */
+		switch (BPF_OP(insn->code) | BPF_CLASS(insn->code)) {
+		case BPF_ALU64 | BPF_MOV:
+			emit_instr(ctx, daddiu, dst, MIPS_R_ZERO, insn->imm);
+			break;
+		case BPF_ALU64 | BPF_AND:
+		case BPF_ALU | BPF_AND:
+			emit_instr(ctx, andi, dst, dst, insn->imm);
+			break;
+		case BPF_ALU64 | BPF_OR:
+		case BPF_ALU | BPF_OR:
+			emit_instr(ctx, ori, dst, dst, insn->imm);
+			break;
+		case BPF_ALU64 | BPF_XOR:
+		case BPF_ALU | BPF_XOR:
+			emit_instr(ctx, xori, dst, dst, insn->imm);
+			break;
+		case BPF_ALU64 | BPF_ADD:
+			emit_instr(ctx, daddiu, dst, dst, insn->imm);
+			break;
+		case BPF_ALU64 | BPF_SUB:
+			emit_instr(ctx, daddiu, dst, dst, -insn->imm);
+			break;
+		case BPF_ALU64 | BPF_RSH:
+			emit_instr(ctx, dsrl_safe, dst, dst, insn->imm & 0x3f);
+			break;
+		case BPF_ALU | BPF_RSH:
+			emit_instr(ctx, srl, dst, dst, insn->imm & 0x1f);
+			break;
+		case BPF_ALU64 | BPF_LSH:
+			emit_instr(ctx, dsll_safe, dst, dst, insn->imm & 0x3f);
+			break;
+		case BPF_ALU | BPF_LSH:
+			emit_instr(ctx, sll, dst, dst, insn->imm & 0x1f);
+			break;
+		case BPF_ALU64 | BPF_ARSH:
+			emit_instr(ctx, dsra_safe, dst, dst, insn->imm & 0x3f);
+			break;
+		case BPF_ALU | BPF_ARSH:
+			emit_instr(ctx, sra, dst, dst, insn->imm & 0x1f);
+			break;
+		case BPF_ALU | BPF_MOV:
+			emit_instr(ctx, addiu, dst, MIPS_R_ZERO, insn->imm);
+			break;
+		case BPF_ALU | BPF_ADD:
+			emit_instr(ctx, addiu, dst, dst, insn->imm);
+			break;
+		case BPF_ALU | BPF_SUB:
+			emit_instr(ctx, addiu, dst, dst, -insn->imm);
+			break;
+		default:
+			return -EINVAL;
+		}
+	} else {
+		/* multi insn immediate case */
+		if (BPF_OP(insn->code) == BPF_MOV) {
+			gen_imm_to_reg(insn, dst, ctx);
+		} else {
+			gen_imm_to_reg(insn, MIPS_R_AT, ctx);
+			switch (BPF_OP(insn->code) | BPF_CLASS(insn->code)) {
+			case BPF_ALU64 | BPF_AND:
+			case BPF_ALU | BPF_AND:
+				emit_instr(ctx, and, dst, dst, MIPS_R_AT);
+				break;
+			case BPF_ALU64 | BPF_OR:
+			case BPF_ALU | BPF_OR:
+				emit_instr(ctx, or, dst, dst, MIPS_R_AT);
+				break;
+			case BPF_ALU64 | BPF_XOR:
+			case BPF_ALU | BPF_XOR:
+				emit_instr(ctx, xor, dst, dst, MIPS_R_AT);
+				break;
+			case BPF_ALU64 | BPF_ADD:
+				emit_instr(ctx, daddu, dst, dst, MIPS_R_AT);
+				break;
+			case BPF_ALU64 | BPF_SUB:
+				emit_instr(ctx, dsubu, dst, dst, MIPS_R_AT);
+				break;
+			case BPF_ALU | BPF_ADD:
+				emit_instr(ctx, addu, dst, dst, MIPS_R_AT);
+				break;
+			case BPF_ALU | BPF_SUB:
+				emit_instr(ctx, subu, dst, dst, MIPS_R_AT);
+				break;
+			default:
+				return -EINVAL;
+			}
+		}
+	}
+
+	return 0;
+}
+
+static void * __must_check
+ool_skb_header_pointer(const struct sk_buff *skb, int offset,
+		       int len, void *buffer)
+{
+	return skb_header_pointer(skb, offset, len, buffer);
+}
+
+static int size_to_len(const struct bpf_insn *insn)
+{
+	switch (BPF_SIZE(insn->code)) {
+	case BPF_B:
+		return 1;
+	case BPF_H:
+		return 2;
+	case BPF_W:
+		return 4;
+	case BPF_DW:
+		return 8;
+	}
+	return 0;
+}
+
+static void emit_const_to_reg(struct jit_ctx *ctx, int dst, u64 value)
+{
+	if (value >= 0xffffffffffff8000ull || value < 0x8000ull) {
+		emit_instr(ctx, daddiu, dst, MIPS_R_ZERO, (int)value);
+	} else if (value >= 0xffffffff80000000ull ||
+		   (value < 0x80000000 && value > 0xffff)) {
+		emit_instr(ctx, lui, dst, (s32)(s16)(value >> 16));
+		emit_instr(ctx, ori, dst, dst, (unsigned int)(value & 0xffff));
+	} else {
+		int i;
+		bool seen_part = false;
+		int needed_shift = 0;
+
+		for (i = 0; i < 4; i++) {
+			u64 part = (value >> (16 * (3 - i))) & 0xffff;
+
+			if (seen_part && needed_shift > 0 && (part || i == 3)) {
+				emit_instr(ctx, dsll_safe, dst, dst, needed_shift);
+				needed_shift = 0;
+			}
+			if (part) {
+				if (i == 0 || (!seen_part && i < 3 && part < 0x8000)) {
+					emit_instr(ctx, lui, dst, (s32)(s16)part);
+					needed_shift = -16;
+				} else {
+					emit_instr(ctx, ori, dst,
+						   seen_part ? dst : MIPS_R_ZERO,
+						   (unsigned int)part);
+				}
+				seen_part = true;
+			}
+			if (seen_part)
+				needed_shift += 16;
+		}
+	}
+}
+
+static int emit_bpf_tail_call(struct jit_ctx *ctx, int this_idx)
+{
+	int off, b_off;
+
+	ctx->flags |= EBPF_SEEN_TC;
+	/*
+	 * if (index >= array->map.max_entries)
+	 *     goto out;
+	 */
+	off = offsetof(struct bpf_array, map.max_entries);
+	emit_instr(ctx, lwu, MIPS_R_T5, off, MIPS_R_A1);
+	emit_instr(ctx, sltu, MIPS_R_AT, MIPS_R_T5, MIPS_R_A2);
+	b_off = b_imm(this_idx + 1, ctx);
+	emit_instr(ctx, bne, MIPS_R_AT, MIPS_R_ZERO, b_off);
+	/*
+	 * if (--TCC < 0)
+	 *     goto out;
+	 */
+	/* Delay slot */
+	emit_instr(ctx, daddiu, MIPS_R_T5,
+		   (ctx->flags & EBPF_TCC_IN_V1) ? MIPS_R_V1 : MIPS_R_S4, -1);
+	b_off = b_imm(this_idx + 1, ctx);
+	emit_instr(ctx, bltz, MIPS_R_T5, b_off);
+	/*
+	 * prog = array->ptrs[index];
+	 * if (prog == NULL)
+	 *     goto out;
+	 */
+	/* Delay slot */
+	emit_instr(ctx, dsll, MIPS_R_T8, MIPS_R_A2, 3);
+	emit_instr(ctx, daddu, MIPS_R_T8, MIPS_R_T8, MIPS_R_A1);
+	off = offsetof(struct bpf_array, ptrs);
+	emit_instr(ctx, ld, MIPS_R_AT, off, MIPS_R_T8);
+	b_off = b_imm(this_idx + 1, ctx);
+	emit_instr(ctx, beq, MIPS_R_AT, MIPS_R_ZERO, b_off);
+	/* Delay slot */
+	emit_instr(ctx, nop);
+
+	/* goto *(prog->bpf_func + 4); */
+	off = offsetof(struct bpf_prog, bpf_func);
+	emit_instr(ctx, ld, MIPS_R_T9, off, MIPS_R_AT);
+	/* All systems are go... propagate TCC */
+	emit_instr(ctx, daddu, MIPS_R_V1, MIPS_R_T5, MIPS_R_ZERO);
+	/* Skip first instruction (TCC initialization) */
+	emit_instr(ctx, daddiu, MIPS_R_T9, MIPS_R_T9, 4);
+	return build_int_epilogue(ctx, MIPS_R_T9);
+}
+
+static bool use_bbit_insns(void)
+{
+	switch (current_cpu_type()) {
+	case CPU_CAVIUM_OCTEON:
+	case CPU_CAVIUM_OCTEON_PLUS:
+	case CPU_CAVIUM_OCTEON2:
+	case CPU_CAVIUM_OCTEON3:
+		return true;
+	default:
+		return false;
+	}
+}
+
+static bool is_bad_offset(int b_off)
+{
+	return b_off > 0x1ffff || b_off < -0x20000;
+}
+
+/* Returns the number of insn slots consumed. */
+static int build_one_insn(const struct bpf_insn *insn, struct jit_ctx *ctx,
+			  int this_idx, int exit_idx)
+{
+	int src, dst, r, td, ts, mem_off, b_off;
+	bool need_swap, did_move, cmp_eq;
+	unsigned int target;
+	u64 t64;
+	s64 t64s;
+
+	switch (insn->code) {
+	case BPF_ALU64 | BPF_ADD | BPF_K: /* ALU64_IMM */
+	case BPF_ALU64 | BPF_SUB | BPF_K: /* ALU64_IMM */
+	case BPF_ALU64 | BPF_OR | BPF_K: /* ALU64_IMM */
+	case BPF_ALU64 | BPF_AND | BPF_K: /* ALU64_IMM */
+	case BPF_ALU64 | BPF_LSH | BPF_K: /* ALU64_IMM */
+	case BPF_ALU64 | BPF_RSH | BPF_K: /* ALU64_IMM */
+	case BPF_ALU64 | BPF_XOR | BPF_K: /* ALU64_IMM */
+	case BPF_ALU64 | BPF_ARSH | BPF_K: /* ALU64_IMM */
+	case BPF_ALU64 | BPF_MOV | BPF_K: /* ALU64_IMM */
+	case BPF_ALU | BPF_MOV | BPF_K: /* ALU32_IMM */
+	case BPF_ALU | BPF_ADD | BPF_K: /* ALU32_IMM */
+	case BPF_ALU | BPF_SUB | BPF_K: /* ALU32_IMM */
+	case BPF_ALU | BPF_OR | BPF_K: /* ALU64_IMM */
+	case BPF_ALU | BPF_AND | BPF_K: /* ALU64_IMM */
+	case BPF_ALU | BPF_LSH | BPF_K: /* ALU64_IMM */
+	case BPF_ALU | BPF_RSH | BPF_K: /* ALU64_IMM */
+	case BPF_ALU | BPF_XOR | BPF_K: /* ALU64_IMM */
+	case BPF_ALU | BPF_ARSH | BPF_K: /* ALU64_IMM */
+		r = gen_imm_insn(insn, ctx, this_idx);
+		if (r < 0)
+			return r;
+		break;
+	case BPF_ALU64 | BPF_MUL | BPF_K: /* ALU64_IMM */
+		dst = ebpf_to_mips_reg(ctx, insn, dst_reg);
+		if (dst < 0)
+			return dst;
+		if (get_reg_val_type(ctx, this_idx, insn->dst_reg) == REG_32BIT)
+			emit_instr(ctx, dinsu, dst, MIPS_R_ZERO, 32, 32);
+		if (insn->imm == 1) /* Mult by 1 is a nop */
+			break;
+		gen_imm_to_reg(insn, MIPS_R_AT, ctx);
+		emit_instr(ctx, dmultu, MIPS_R_AT, dst);
+		emit_instr(ctx, mflo, dst);
+		break;
+	case BPF_ALU64 | BPF_NEG | BPF_K: /* ALU64_IMM */
+		dst = ebpf_to_mips_reg(ctx, insn, dst_reg);
+		if (dst < 0)
+			return dst;
+		if (get_reg_val_type(ctx, this_idx, insn->dst_reg) == REG_32BIT)
+			emit_instr(ctx, dinsu, dst, MIPS_R_ZERO, 32, 32);
+		emit_instr(ctx, dsubu, dst, MIPS_R_ZERO, dst);
+		break;
+	case BPF_ALU | BPF_MUL | BPF_K: /* ALU_IMM */
+		dst = ebpf_to_mips_reg(ctx, insn, dst_reg);
+		if (dst < 0)
+			return dst;
+		td = get_reg_val_type(ctx, this_idx, insn->dst_reg);
+		if (td == REG_64BIT || td == REG_32BIT_ZERO_EX) {
+			/* sign extend */
+			emit_instr(ctx, sll, dst, dst, 0);
+		}
+		if (insn->imm == 1) /* Mult by 1 is a nop */
+			break;
+		gen_imm_to_reg(insn, MIPS_R_AT, ctx);
+		emit_instr(ctx, multu, dst, MIPS_R_AT);
+		emit_instr(ctx, mflo, dst);
+		break;
+	case BPF_ALU | BPF_NEG | BPF_K: /* ALU_IMM */
+		dst = ebpf_to_mips_reg(ctx, insn, dst_reg);
+		if (dst < 0)
+			return dst;
+		td = get_reg_val_type(ctx, this_idx, insn->dst_reg);
+		if (td == REG_64BIT || td == REG_32BIT_ZERO_EX) {
+			/* sign extend */
+			emit_instr(ctx, sll, dst, dst, 0);
+		}
+		emit_instr(ctx, subu, dst, MIPS_R_ZERO, dst);
+		break;
+	case BPF_ALU | BPF_DIV | BPF_K: /* ALU_IMM */
+	case BPF_ALU | BPF_MOD | BPF_K: /* ALU_IMM */
+		dst = ebpf_to_mips_reg(ctx, insn, dst_reg);
+		if (dst < 0)
+			return dst;
+		if (insn->imm == 0) { /* Div by zero */
+			b_off = b_imm(exit_idx, ctx);
+			if (is_bad_offset(b_off))
+				return -E2BIG;
+			emit_instr(ctx, beq, MIPS_R_ZERO, MIPS_R_ZERO, b_off);
+			emit_instr(ctx, addu, MIPS_R_V0, MIPS_R_ZERO, MIPS_R_ZERO);
+		}
+		td = get_reg_val_type(ctx, this_idx, insn->dst_reg);
+		if (td == REG_64BIT || td == REG_32BIT_ZERO_EX)
+			/* sign extend */
+			emit_instr(ctx, sll, dst, dst, 0);
+		if (insn->imm == 1) {
+			/* div by 1 is a nop, mod by 1 is zero */
+			if (BPF_OP(insn->code) == BPF_MOD)
+				emit_instr(ctx, addu, dst, MIPS_R_ZERO, MIPS_R_ZERO);
+			break;
+		}
+		gen_imm_to_reg(insn, MIPS_R_AT, ctx);
+		emit_instr(ctx, divu, dst, MIPS_R_AT);
+		if (BPF_OP(insn->code) == BPF_DIV)
+			emit_instr(ctx, mflo, dst);
+		else
+			emit_instr(ctx, mfhi, dst);
+		break;
+	case BPF_ALU64 | BPF_DIV | BPF_K: /* ALU_IMM */
+	case BPF_ALU64 | BPF_MOD | BPF_K: /* ALU_IMM */
+		dst = ebpf_to_mips_reg(ctx, insn, dst_reg);
+		if (dst < 0)
+			return dst;
+		if (insn->imm == 0) { /* Div by zero */
+			b_off = b_imm(exit_idx, ctx);
+			if (is_bad_offset(b_off))
+				return -E2BIG;
+			emit_instr(ctx, beq, MIPS_R_ZERO, MIPS_R_ZERO, b_off);
+			emit_instr(ctx, addu, MIPS_R_V0, MIPS_R_ZERO, MIPS_R_ZERO);
+		}
+		if (get_reg_val_type(ctx, this_idx, insn->dst_reg) == REG_32BIT)
+			emit_instr(ctx, dinsu, dst, MIPS_R_ZERO, 32, 32);
+
+		if (insn->imm == 1) {
+			/* div by 1 is a nop, mod by 1 is zero */
+			if (BPF_OP(insn->code) == BPF_MOD)
+				emit_instr(ctx, addu, dst, MIPS_R_ZERO, MIPS_R_ZERO);
+			break;
+		}
+		gen_imm_to_reg(insn, MIPS_R_AT, ctx);
+		emit_instr(ctx, ddivu, dst, MIPS_R_AT);
+		if (BPF_OP(insn->code) == BPF_DIV)
+			emit_instr(ctx, mflo, dst);
+		else
+			emit_instr(ctx, mfhi, dst);
+		break;
+	case BPF_ALU64 | BPF_MOV | BPF_X: /* ALU64_REG */
+	case BPF_ALU64 | BPF_ADD | BPF_X: /* ALU64_REG */
+	case BPF_ALU64 | BPF_SUB | BPF_X: /* ALU64_REG */
+	case BPF_ALU64 | BPF_XOR | BPF_X: /* ALU64_REG */
+	case BPF_ALU64 | BPF_OR | BPF_X: /* ALU64_REG */
+	case BPF_ALU64 | BPF_AND | BPF_X: /* ALU64_REG */
+	case BPF_ALU64 | BPF_MUL | BPF_X: /* ALU64_REG */
+	case BPF_ALU64 | BPF_DIV | BPF_X: /* ALU64_REG */
+	case BPF_ALU64 | BPF_MOD | BPF_X: /* ALU64_REG */
+	case BPF_ALU64 | BPF_LSH | BPF_X: /* ALU64_REG */
+	case BPF_ALU64 | BPF_RSH | BPF_X: /* ALU64_REG */
+	case BPF_ALU64 | BPF_ARSH | BPF_X: /* ALU64_REG */
+		src = ebpf_to_mips_reg(ctx, insn, src_reg);
+		dst = ebpf_to_mips_reg(ctx, insn, dst_reg);
+		if (src < 0 || dst < 0)
+			return -EINVAL;
+		if (get_reg_val_type(ctx, this_idx, insn->dst_reg) == REG_32BIT)
+			emit_instr(ctx, dinsu, dst, MIPS_R_ZERO, 32, 32);
+		did_move = false;
+		if (insn->src_reg == BPF_REG_10) {
+			if (BPF_OP(insn->code) == BPF_MOV) {
+				emit_instr(ctx, daddiu, dst, MIPS_R_SP, MAX_BPF_STACK);
+				did_move = true;
+			} else {
+				emit_instr(ctx, daddiu, MIPS_R_AT, MIPS_R_SP, MAX_BPF_STACK);
+				src = MIPS_R_AT;
+			}
+		} else if (get_reg_val_type(ctx, this_idx, insn->src_reg) == REG_32BIT) {
+			int tmp_reg = MIPS_R_AT;
+
+			if (BPF_OP(insn->code) == BPF_MOV) {
+				tmp_reg = dst;
+				did_move = true;
+			}
+			emit_instr(ctx, daddu, tmp_reg, src, MIPS_R_ZERO);
+			emit_instr(ctx, dinsu, tmp_reg, MIPS_R_ZERO, 32, 32);
+			src = MIPS_R_AT;
+		}
+		switch (BPF_OP(insn->code)) {
+		case BPF_MOV:
+			if (!did_move)
+				emit_instr(ctx, daddu, dst, src, MIPS_R_ZERO);
+			break;
+		case BPF_ADD:
+			emit_instr(ctx, daddu, dst, dst, src);
+			break;
+		case BPF_SUB:
+			emit_instr(ctx, dsubu, dst, dst, src);
+			break;
+		case BPF_XOR:
+			emit_instr(ctx, xor, dst, dst, src);
+			break;
+		case BPF_OR:
+			emit_instr(ctx, or, dst, dst, src);
+			break;
+		case BPF_AND:
+			emit_instr(ctx, and, dst, dst, src);
+			break;
+		case BPF_MUL:
+			emit_instr(ctx, dmultu, dst, src);
+			emit_instr(ctx, mflo, dst);
+			break;
+		case BPF_DIV:
+		case BPF_MOD:
+			b_off = b_imm(exit_idx, ctx);
+			if (is_bad_offset(b_off))
+				return -E2BIG;
+			emit_instr(ctx, beq, src, MIPS_R_ZERO, b_off);
+			emit_instr(ctx, movz, MIPS_R_V0, MIPS_R_ZERO, src);
+			emit_instr(ctx, ddivu, dst, src);
+			if (BPF_OP(insn->code) == BPF_DIV)
+				emit_instr(ctx, mflo, dst);
+			else
+				emit_instr(ctx, mfhi, dst);
+			break;
+		case BPF_LSH:
+			emit_instr(ctx, dsllv, dst, dst, src);
+			break;
+		case BPF_RSH:
+			emit_instr(ctx, dsrlv, dst, dst, src);
+			break;
+		case BPF_ARSH:
+			emit_instr(ctx, dsrav, dst, dst, src);
+			break;
+		default:
+			pr_err("ALU64_REG NOT HANDLED\n");
+			return -EINVAL;
+		}
+		break;
+	case BPF_ALU | BPF_MOV | BPF_X: /* ALU_REG */
+	case BPF_ALU | BPF_ADD | BPF_X: /* ALU_REG */
+	case BPF_ALU | BPF_SUB | BPF_X: /* ALU_REG */
+	case BPF_ALU | BPF_XOR | BPF_X: /* ALU_REG */
+	case BPF_ALU | BPF_OR | BPF_X: /* ALU_REG */
+	case BPF_ALU | BPF_AND | BPF_X: /* ALU_REG */
+	case BPF_ALU | BPF_MUL | BPF_X: /* ALU_REG */
+	case BPF_ALU | BPF_DIV | BPF_X: /* ALU_REG */
+	case BPF_ALU | BPF_MOD | BPF_X: /* ALU_REG */
+	case BPF_ALU | BPF_LSH | BPF_X: /* ALU_REG */
+	case BPF_ALU | BPF_RSH | BPF_X: /* ALU_REG */
+		src = ebpf_to_mips_reg(ctx, insn, src_reg_no_fp);
+		dst = ebpf_to_mips_reg(ctx, insn, dst_reg);
+		if (src < 0 || dst < 0)
+			return -EINVAL;
+		td = get_reg_val_type(ctx, this_idx, insn->dst_reg);
+		if (td == REG_64BIT || td == REG_32BIT_ZERO_EX) {
+			/* sign extend */
+			emit_instr(ctx, sll, dst, dst, 0);
+		}
+		did_move = false;
+		ts = get_reg_val_type(ctx, this_idx, insn->src_reg);
+		if (ts == REG_64BIT || ts == REG_32BIT_ZERO_EX) {
+			int tmp_reg = MIPS_R_AT;
+
+			if (BPF_OP(insn->code) == BPF_MOV) {
+				tmp_reg = dst;
+				did_move = true;
+			}
+			/* sign extend */
+			emit_instr(ctx, sll, tmp_reg, src, 0);
+			src = MIPS_R_AT;
+		}
+		switch (BPF_OP(insn->code)) {
+		case BPF_MOV:
+			if (!did_move)
+				emit_instr(ctx, addu, dst, src, MIPS_R_ZERO);
+			break;
+		case BPF_ADD:
+			emit_instr(ctx, addu, dst, dst, src);
+			break;
+		case BPF_SUB:
+			emit_instr(ctx, subu, dst, dst, src);
+			break;
+		case BPF_XOR:
+			emit_instr(ctx, xor, dst, dst, src);
+			break;
+		case BPF_OR:
+			emit_instr(ctx, or, dst, dst, src);
+			break;
+		case BPF_AND:
+			emit_instr(ctx, and, dst, dst, src);
+			break;
+		case BPF_MUL:
+			emit_instr(ctx, mul, dst, dst, src);
+			break;
+		case BPF_DIV:
+		case BPF_MOD:
+			b_off = b_imm(exit_idx, ctx);
+			if (is_bad_offset(b_off))
+				return -E2BIG;
+			emit_instr(ctx, beq, src, MIPS_R_ZERO, b_off);
+			emit_instr(ctx, movz, MIPS_R_V0, MIPS_R_ZERO, src);
+			emit_instr(ctx, divu, dst, src);
+			if (BPF_OP(insn->code) == BPF_DIV)
+				emit_instr(ctx, mflo, dst);
+			else
+				emit_instr(ctx, mfhi, dst);
+			break;
+		case BPF_LSH:
+			emit_instr(ctx, sllv, dst, dst, src);
+			break;
+		case BPF_RSH:
+			emit_instr(ctx, srlv, dst, dst, src);
+			break;
+		default:
+			pr_err("ALU_REG NOT HANDLED\n");
+			return -EINVAL;
+		}
+		break;
+	case BPF_JMP | BPF_EXIT:
+		if (this_idx + 1 < exit_idx) {
+			b_off = b_imm(exit_idx, ctx);
+			if (is_bad_offset(b_off))
+				return -E2BIG;
+			emit_instr(ctx, beq, MIPS_R_ZERO, MIPS_R_ZERO, b_off);
+			emit_instr(ctx, nop);
+		}
+		break;
+	case BPF_JMP | BPF_JEQ | BPF_K: /* JMP_IMM */
+	case BPF_JMP | BPF_JNE | BPF_K: /* JMP_IMM */
+		cmp_eq = (BPF_OP(insn->code) == BPF_JEQ);
+		dst = ebpf_to_mips_reg(ctx, insn, dst_reg_fp_ok);
+		if (dst < 0)
+			return dst;
+		if (insn->imm == 0) {
+			src = MIPS_R_ZERO;
+		} else {
+			gen_imm_to_reg(insn, MIPS_R_AT, ctx);
+			src = MIPS_R_AT;
+		}
+		goto jeq_common;
+	case BPF_JMP | BPF_JEQ | BPF_X: /* JMP_REG */
+	case BPF_JMP | BPF_JNE | BPF_X:
+	case BPF_JMP | BPF_JSGT | BPF_X:
+	case BPF_JMP | BPF_JSGE | BPF_X:
+	case BPF_JMP | BPF_JGT | BPF_X:
+	case BPF_JMP | BPF_JGE | BPF_X:
+	case BPF_JMP | BPF_JSET | BPF_X:
+		src = ebpf_to_mips_reg(ctx, insn, src_reg_no_fp);
+		dst = ebpf_to_mips_reg(ctx, insn, dst_reg);
+		if (src < 0 || dst < 0)
+			return -EINVAL;
+		td = get_reg_val_type(ctx, this_idx, insn->dst_reg);
+		ts = get_reg_val_type(ctx, this_idx, insn->src_reg);
+		if (td == REG_32BIT && ts != REG_32BIT) {
+			emit_instr(ctx, sll, MIPS_R_AT, src, 0);
+			src = MIPS_R_AT;
+		} else if (ts == REG_32BIT && td != REG_32BIT) {
+			emit_instr(ctx, sll, MIPS_R_AT, dst, 0);
+			dst = MIPS_R_AT;
+		}
+		if (BPF_OP(insn->code) == BPF_JSET) {
+			emit_instr(ctx, and, MIPS_R_AT, dst, src);
+			cmp_eq = false;
+			dst = MIPS_R_AT;
+			src = MIPS_R_ZERO;
+		} else if (BPF_OP(insn->code) == BPF_JSGT) {
+			emit_instr(ctx, dsubu, MIPS_R_AT, dst, src);
+			if ((insn + 1)->code == (BPF_JMP | BPF_EXIT) && insn->off == 1) {
+				b_off = b_imm(exit_idx, ctx);
+				if (is_bad_offset(b_off))
+					return -E2BIG;
+				emit_instr(ctx, blez, MIPS_R_AT, b_off);
+				emit_instr(ctx, nop);
+				return 2; /* We consumed the exit. */
+			}
+			b_off = b_imm(this_idx + insn->off + 1, ctx);
+			if (is_bad_offset(b_off))
+				return -E2BIG;
+			emit_instr(ctx, bgtz, MIPS_R_AT, b_off);
+			emit_instr(ctx, nop);
+			break;
+		} else if (BPF_OP(insn->code) == BPF_JSGE) {
+			emit_instr(ctx, slt, MIPS_R_AT, dst, src);
+			cmp_eq = true;
+			dst = MIPS_R_AT;
+			src = MIPS_R_ZERO;
+		} else if (BPF_OP(insn->code) == BPF_JGT) {
+			/* dst or src could be AT */
+			emit_instr(ctx, dsubu, MIPS_R_T8, dst, src);
+			emit_instr(ctx, sltu, MIPS_R_AT, dst, src);
+			/* SP known to be non-zero, movz becomes boolean not */
+			emit_instr(ctx, movz, MIPS_R_T9, MIPS_R_SP, MIPS_R_T8);
+			emit_instr(ctx, movn, MIPS_R_T9, MIPS_R_ZERO, MIPS_R_T8);
+			emit_instr(ctx, or, MIPS_R_AT, MIPS_R_T9, MIPS_R_AT);
+			cmp_eq = true;
+			dst = MIPS_R_AT;
+			src = MIPS_R_ZERO;
+		} else if (BPF_OP(insn->code) == BPF_JGE) {
+			emit_instr(ctx, sltu, MIPS_R_AT, dst, src);
+			cmp_eq = true;
+			dst = MIPS_R_AT;
+			src = MIPS_R_ZERO;
+		} else { /* JNE/JEQ case */
+			cmp_eq = (BPF_OP(insn->code) == BPF_JEQ);
+		}
+jeq_common:
+		/*
+		 * If the next insn is EXIT and we are jumping arround
+		 * only it, invert the sense of the compare and
+		 * conditionally jump to the exit.  Poor man's branch
+		 * chaining.
+		 */
+		if ((insn + 1)->code == (BPF_JMP | BPF_EXIT) && insn->off == 1) {
+			b_off = b_imm(exit_idx, ctx);
+			if (is_bad_offset(b_off)) {
+				target = j_target(ctx, exit_idx);
+				if (target == (unsigned int)-1)
+					return -E2BIG;
+				cmp_eq = !cmp_eq;
+				b_off = 4 * 3;
+				if (!(ctx->offsets[this_idx] & OFFSETS_B_CONV)) {
+					ctx->offsets[this_idx] |= OFFSETS_B_CONV;
+					ctx->long_b_conversion = 1;
+				}
+			}
+
+			if (cmp_eq)
+				emit_instr(ctx, bne, dst, src, b_off);
+			else
+				emit_instr(ctx, beq, dst, src, b_off);
+			emit_instr(ctx, nop);
+			if (ctx->offsets[this_idx] & OFFSETS_B_CONV) {
+				emit_instr(ctx, j, target);
+				emit_instr(ctx, nop);
+			}
+			return 2; /* We consumed the exit. */
+		}
+		b_off = b_imm(this_idx + insn->off + 1, ctx);
+		if (is_bad_offset(b_off)) {
+			target = j_target(ctx, this_idx + insn->off + 1);
+			if (target == (unsigned int)-1)
+				return -E2BIG;
+			cmp_eq = !cmp_eq;
+			b_off = 4 * 3;
+			if (!(ctx->offsets[this_idx] & OFFSETS_B_CONV)) {
+				ctx->offsets[this_idx] |= OFFSETS_B_CONV;
+				ctx->long_b_conversion = 1;
+			}
+		}
+
+		if (cmp_eq)
+			emit_instr(ctx, beq, dst, src, b_off);
+		else
+			emit_instr(ctx, bne, dst, src, b_off);
+		emit_instr(ctx, nop);
+		if (ctx->offsets[this_idx] & OFFSETS_B_CONV) {
+			emit_instr(ctx, j, target);
+			emit_instr(ctx, nop);
+		}
+		break;
+	case BPF_JMP | BPF_JSGT | BPF_K: /* JMP_IMM */
+	case BPF_JMP | BPF_JSGE | BPF_K: /* JMP_IMM */
+		cmp_eq = (BPF_OP(insn->code) == BPF_JSGE);
+		dst = ebpf_to_mips_reg(ctx, insn, dst_reg_fp_ok);
+		if (dst < 0)
+			return dst;
+
+		if (insn->imm == 0) {
+			if ((insn + 1)->code == (BPF_JMP | BPF_EXIT) && insn->off == 1) {
+				b_off = b_imm(exit_idx, ctx);
+				if (is_bad_offset(b_off))
+					return -E2BIG;
+				if (cmp_eq)
+					emit_instr(ctx, bltz, dst, b_off);
+				else
+					emit_instr(ctx, blez, dst, b_off);
+				emit_instr(ctx, nop);
+				return 2; /* We consumed the exit. */
+			}
+			b_off = b_imm(this_idx + insn->off + 1, ctx);
+			if (is_bad_offset(b_off))
+				return -E2BIG;
+			if (cmp_eq)
+				emit_instr(ctx, bgez, dst, b_off);
+			else
+				emit_instr(ctx, bgtz, dst, b_off);
+			emit_instr(ctx, nop);
+			break;
+		}
+		/*
+		 * only "LT" compare available, so we must use imm + 1
+		 * to generate "GT"
+		 */
+		t64s = insn->imm + (cmp_eq ? 0 : 1);
+		if (t64s >= S16_MIN && t64s <= S16_MAX) {
+			emit_instr(ctx, slti, MIPS_R_AT, dst, (int)t64s);
+			src = MIPS_R_AT;
+			dst = MIPS_R_ZERO;
+			cmp_eq = true;
+			goto jeq_common;
+		}
+		emit_const_to_reg(ctx, MIPS_R_AT, (u64)t64s);
+		emit_instr(ctx, slt, MIPS_R_AT, dst, MIPS_R_AT);
+		src = MIPS_R_AT;
+		dst = MIPS_R_ZERO;
+		cmp_eq = true;
+		goto jeq_common;
+
+	case BPF_JMP | BPF_JGT | BPF_K:
+	case BPF_JMP | BPF_JGE | BPF_K:
+		cmp_eq = (BPF_OP(insn->code) == BPF_JGE);
+		dst = ebpf_to_mips_reg(ctx, insn, dst_reg_fp_ok);
+		if (dst < 0)
+			return dst;
+		/*
+		 * only "LT" compare available, so we must use imm + 1
+		 * to generate "GT"
+		 */
+		t64s = (u64)(u32)(insn->imm) + (cmp_eq ? 0 : 1);
+		if (t64s >= 0 && t64s <= S16_MAX) {
+			emit_instr(ctx, sltiu, MIPS_R_AT, dst, (int)t64s);
+			src = MIPS_R_AT;
+			dst = MIPS_R_ZERO;
+			cmp_eq = true;
+			goto jeq_common;
+		}
+		emit_const_to_reg(ctx, MIPS_R_AT, (u64)t64s);
+		emit_instr(ctx, sltu, MIPS_R_AT, dst, MIPS_R_AT);
+		src = MIPS_R_AT;
+		dst = MIPS_R_ZERO;
+		cmp_eq = true;
+		goto jeq_common;
+
+	case BPF_JMP | BPF_JSET | BPF_K: /* JMP_IMM */
+		dst = ebpf_to_mips_reg(ctx, insn, dst_reg_fp_ok);
+		if (dst < 0)
+			return dst;
+
+		if (use_bbit_insns() && hweight32((u32)insn->imm) == 1) {
+			if ((insn + 1)->code == (BPF_JMP | BPF_EXIT) && insn->off == 1) {
+				b_off = b_imm(exit_idx, ctx);
+				if (is_bad_offset(b_off))
+					return -E2BIG;
+				emit_instr(ctx, bbit0, dst, ffs((u32)insn->imm) - 1, b_off);
+				emit_instr(ctx, nop);
+				return 2; /* We consumed the exit. */
+			}
+			b_off = b_imm(this_idx + insn->off + 1, ctx);
+			if (is_bad_offset(b_off))
+				return -E2BIG;
+			emit_instr(ctx, bbit1, dst, ffs((u32)insn->imm) - 1, b_off);
+			emit_instr(ctx, nop);
+			break;
+		}
+		t64 = (u32)insn->imm;
+		emit_const_to_reg(ctx, MIPS_R_AT, t64);
+		emit_instr(ctx, and, MIPS_R_AT, dst, MIPS_R_AT);
+		src = MIPS_R_AT;
+		dst = MIPS_R_ZERO;
+		cmp_eq = false;
+		goto jeq_common;
+
+	case BPF_JMP | BPF_JA:
+		/*
+		 * Prefer relative branch for easier debugging, but
+		 * fall back if needed.
+		 */
+		b_off = b_imm(this_idx + insn->off + 1, ctx);
+		if (is_bad_offset(b_off)) {
+			target = j_target(ctx, this_idx + insn->off + 1);
+			if (target == (unsigned int)-1)
+				return -E2BIG;
+			emit_instr(ctx, j, target);
+		} else {
+			emit_instr(ctx, b, b_off);
+		}
+		emit_instr(ctx, nop);
+		break;
+	case BPF_LD | BPF_DW | BPF_IMM:
+		if (insn->src_reg != 0)
+			return -EINVAL;
+		dst = ebpf_to_mips_reg(ctx, insn, dst_reg);
+		if (dst < 0)
+			return dst;
+		t64 = ((u64)(u32)insn->imm) | ((u64)(insn + 1)->imm << 32);
+		emit_const_to_reg(ctx, dst, t64);
+		return 2; /* Double slot insn */
+
+	case BPF_JMP | BPF_CALL:
+		ctx->flags |= EBPF_SAVE_RA;
+		t64s = (s64)insn->imm + (s64)__bpf_call_base;
+		emit_const_to_reg(ctx, MIPS_R_T9, (u64)t64s);
+		emit_instr(ctx, jalr, MIPS_R_RA, MIPS_R_T9);
+		/* delay slot */
+		emit_instr(ctx, nop);
+		break;
+
+	case BPF_JMP | BPF_TAIL_CALL:
+		if (emit_bpf_tail_call(ctx, this_idx))
+			return -EINVAL;
+		break;
+
+	case BPF_LD | BPF_B | BPF_ABS:
+	case BPF_LD | BPF_H | BPF_ABS:
+	case BPF_LD | BPF_W | BPF_ABS:
+	case BPF_LD | BPF_DW | BPF_ABS:
+		ctx->flags |= EBPF_SAVE_RA;
+
+		gen_imm_to_reg(insn, MIPS_R_A1, ctx);
+		emit_instr(ctx, addiu, MIPS_R_A2, MIPS_R_ZERO, size_to_len(insn));
+
+		if (insn->imm < 0) {
+			emit_const_to_reg(ctx, MIPS_R_T9, (u64)bpf_internal_load_pointer_neg_helper);
+		} else {
+			emit_const_to_reg(ctx, MIPS_R_T9, (u64)ool_skb_header_pointer);
+			emit_instr(ctx, daddiu, MIPS_R_A3, MIPS_R_SP, ctx->tmp_offset);
+		}
+		goto ld_skb_common;
+
+	case BPF_LD | BPF_B | BPF_IND:
+	case BPF_LD | BPF_H | BPF_IND:
+	case BPF_LD | BPF_W | BPF_IND:
+	case BPF_LD | BPF_DW | BPF_IND:
+		ctx->flags |= EBPF_SAVE_RA;
+		src = ebpf_to_mips_reg(ctx, insn, src_reg_no_fp);
+		if (src < 0)
+			return src;
+		ts = get_reg_val_type(ctx, this_idx, insn->src_reg);
+		if (ts == REG_32BIT_ZERO_EX) {
+			/* sign extend */
+			emit_instr(ctx, sll, MIPS_R_A1, src, 0);
+			src = MIPS_R_A1;
+		}
+		if (insn->imm >= S16_MIN && insn->imm <= S16_MAX) {
+			emit_instr(ctx, daddiu, MIPS_R_A1, src, insn->imm);
+		} else {
+			gen_imm_to_reg(insn, MIPS_R_AT, ctx);
+			emit_instr(ctx, daddu, MIPS_R_A1, MIPS_R_AT, src);
+		}
+		/* truncate to 32-bit int */
+		emit_instr(ctx, sll, MIPS_R_A1, MIPS_R_A1, 0);
+		emit_instr(ctx, daddiu, MIPS_R_A3, MIPS_R_SP, ctx->tmp_offset);
+		emit_instr(ctx, slt, MIPS_R_AT, MIPS_R_A1, MIPS_R_ZERO);
+
+		emit_const_to_reg(ctx, MIPS_R_T8, (u64)bpf_internal_load_pointer_neg_helper);
+		emit_const_to_reg(ctx, MIPS_R_T9, (u64)ool_skb_header_pointer);
+		emit_instr(ctx, addiu, MIPS_R_A2, MIPS_R_ZERO, size_to_len(insn));
+		emit_instr(ctx, movn, MIPS_R_T9, MIPS_R_T8, MIPS_R_AT);
+
+ld_skb_common:
+		emit_instr(ctx, jalr, MIPS_R_RA, MIPS_R_T9);
+		/* delay slot move */
+		emit_instr(ctx, daddu, MIPS_R_A0, MIPS_R_S0, MIPS_R_ZERO);
+
+		/* Check the error value */
+		b_off = b_imm(exit_idx, ctx);
+		if (is_bad_offset(b_off)) {
+			target = j_target(ctx, exit_idx);
+			if (target == (unsigned int)-1)
+				return -E2BIG;
+
+			if (!(ctx->offsets[this_idx] & OFFSETS_B_CONV)) {
+				ctx->offsets[this_idx] |= OFFSETS_B_CONV;
+				ctx->long_b_conversion = 1;
+			}
+			emit_instr(ctx, bne, MIPS_R_V0, MIPS_R_ZERO, 4 * 3);
+			emit_instr(ctx, nop);
+			emit_instr(ctx, j, target);
+			emit_instr(ctx, nop);
+		} else {
+			emit_instr(ctx, beq, MIPS_R_V0, MIPS_R_ZERO, b_off);
+			emit_instr(ctx, nop);
+		}
+
+#ifdef __BIG_ENDIAN
+		need_swap = false;
+#else
+		need_swap = true;
+#endif
+		dst = MIPS_R_V0;
+		switch (BPF_SIZE(insn->code)) {
+		case BPF_B:
+			emit_instr(ctx, lbu, dst, 0, MIPS_R_V0);
+			break;
+		case BPF_H:
+			emit_instr(ctx, lhu, dst, 0, MIPS_R_V0);
+			if (need_swap)
+				emit_instr(ctx, wsbh, dst, dst);
+			break;
+		case BPF_W:
+			emit_instr(ctx, lw, dst, 0, MIPS_R_V0);
+			if (need_swap) {
+				emit_instr(ctx, wsbh, dst, dst);
+				emit_instr(ctx, rotr, dst, dst, 16);
+			}
+			break;
+		case BPF_DW:
+			emit_instr(ctx, ld, dst, 0, MIPS_R_V0);
+			if (need_swap) {
+				emit_instr(ctx, dsbh, dst, dst);
+				emit_instr(ctx, dshd, dst, dst);
+			}
+			break;
+		}
+
+		break;
+	case BPF_ALU | BPF_END | BPF_FROM_BE:
+	case BPF_ALU | BPF_END | BPF_FROM_LE:
+		dst = ebpf_to_mips_reg(ctx, insn, dst_reg);
+		if (dst < 0)
+			return dst;
+		td = get_reg_val_type(ctx, this_idx, insn->dst_reg);
+		if (insn->imm == 64 && td == REG_32BIT)
+			emit_instr(ctx, dinsu, dst, MIPS_R_ZERO, 32, 32);
+
+		if (insn->imm != 64 &&
+		    (td == REG_64BIT || td == REG_32BIT_ZERO_EX)) {
+			/* sign extend */
+			emit_instr(ctx, sll, dst, dst, 0);
+		}
+
+#ifdef __BIG_ENDIAN
+		need_swap = (BPF_SRC(insn->code) == BPF_FROM_LE);
+#else
+		need_swap = (BPF_SRC(insn->code) == BPF_FROM_BE);
+#endif
+		if (insn->imm == 16) {
+			if (need_swap)
+				emit_instr(ctx, wsbh, dst, dst);
+			emit_instr(ctx, andi, dst, dst, 0xffff);
+		} else if (insn->imm == 32) {
+			if (need_swap) {
+				emit_instr(ctx, wsbh, dst, dst);
+				emit_instr(ctx, rotr, dst, dst, 16);
+			}
+		} else { /* 64-bit*/
+			if (need_swap) {
+				emit_instr(ctx, dsbh, dst, dst);
+				emit_instr(ctx, dshd, dst, dst);
+			}
+		}
+		break;
+
+	case BPF_ST | BPF_B | BPF_MEM:
+	case BPF_ST | BPF_H | BPF_MEM:
+	case BPF_ST | BPF_W | BPF_MEM:
+	case BPF_ST | BPF_DW | BPF_MEM:
+		if (insn->dst_reg == BPF_REG_10) {
+			ctx->flags |= EBPF_SEEN_FP;
+			dst = MIPS_R_SP;
+			mem_off = insn->off + MAX_BPF_STACK;
+		} else {
+			dst = ebpf_to_mips_reg(ctx, insn, dst_reg);
+			if (dst < 0)
+				return dst;
+			mem_off = insn->off;
+		}
+		gen_imm_to_reg(insn, MIPS_R_AT, ctx);
+		switch (BPF_SIZE(insn->code)) {
+		case BPF_B:
+			emit_instr(ctx, sb, MIPS_R_AT, mem_off, dst);
+			break;
+		case BPF_H:
+			emit_instr(ctx, sh, MIPS_R_AT, mem_off, dst);
+			break;
+		case BPF_W:
+			emit_instr(ctx, sw, MIPS_R_AT, mem_off, dst);
+			break;
+		case BPF_DW:
+			emit_instr(ctx, sd, MIPS_R_AT, mem_off, dst);
+			break;
+		}
+		break;
+
+	case BPF_LDX | BPF_B | BPF_MEM:
+	case BPF_LDX | BPF_H | BPF_MEM:
+	case BPF_LDX | BPF_W | BPF_MEM:
+	case BPF_LDX | BPF_DW | BPF_MEM:
+		if (insn->src_reg == BPF_REG_10) {
+			ctx->flags |= EBPF_SEEN_FP;
+			src = MIPS_R_SP;
+			mem_off = insn->off + MAX_BPF_STACK;
+		} else {
+			src = ebpf_to_mips_reg(ctx, insn, src_reg_no_fp);
+			if (src < 0)
+				return src;
+			mem_off = insn->off;
+		}
+		dst = ebpf_to_mips_reg(ctx, insn, dst_reg);
+		if (dst < 0)
+			return dst;
+		switch (BPF_SIZE(insn->code)) {
+		case BPF_B:
+			emit_instr(ctx, lbu, dst, mem_off, src);
+			break;
+		case BPF_H:
+			emit_instr(ctx, lhu, dst, mem_off, src);
+			break;
+		case BPF_W:
+			emit_instr(ctx, lw, dst, mem_off, src);
+			break;
+		case BPF_DW:
+			emit_instr(ctx, ld, dst, mem_off, src);
+			break;
+		}
+		break;
+
+	case BPF_STX | BPF_B | BPF_MEM:
+	case BPF_STX | BPF_H | BPF_MEM:
+	case BPF_STX | BPF_W | BPF_MEM:
+	case BPF_STX | BPF_DW | BPF_MEM:
+	case BPF_STX | BPF_W | BPF_XADD:
+	case BPF_STX | BPF_DW | BPF_XADD:
+		if (insn->dst_reg == BPF_REG_10) {
+			ctx->flags |= EBPF_SEEN_FP;
+			dst = MIPS_R_SP;
+			mem_off = insn->off + MAX_BPF_STACK;
+		} else {
+			dst = ebpf_to_mips_reg(ctx, insn, dst_reg);
+			if (dst < 0)
+				return dst;
+			mem_off = insn->off;
+		}
+		src = ebpf_to_mips_reg(ctx, insn, src_reg_no_fp);
+		if (src < 0)
+			return dst;
+		if (BPF_MODE(insn->code) == BPF_XADD) {
+			switch (BPF_SIZE(insn->code)) {
+			case BPF_W:
+				if (get_reg_val_type(ctx, this_idx, insn->src_reg) == REG_32BIT) {
+					emit_instr(ctx, sll, MIPS_R_AT, src, 0);
+					src = MIPS_R_AT;
+				}
+				emit_instr(ctx, ll, MIPS_R_T8, mem_off, dst);
+				emit_instr(ctx, addu, MIPS_R_T8, MIPS_R_T8, src);
+				emit_instr(ctx, sc, MIPS_R_T8, mem_off, dst);
+				/*
+				 * On failure back up to LL (-4
+				 * instructions of 4 bytes each
+				 */
+				emit_instr(ctx, beq, MIPS_R_T8, MIPS_R_ZERO, -4 * 4);
+				emit_instr(ctx, nop);
+				break;
+			case BPF_DW:
+				if (get_reg_val_type(ctx, this_idx, insn->src_reg) == REG_32BIT) {
+					emit_instr(ctx, daddu, MIPS_R_AT, src, MIPS_R_ZERO);
+					emit_instr(ctx, dinsu, MIPS_R_AT, MIPS_R_ZERO, 32, 32);
+					src = MIPS_R_AT;
+				}
+				emit_instr(ctx, lld, MIPS_R_T8, mem_off, dst);
+				emit_instr(ctx, daddu, MIPS_R_T8, MIPS_R_T8, src);
+				emit_instr(ctx, scd, MIPS_R_T8, mem_off, dst);
+				emit_instr(ctx, beq, MIPS_R_T8, MIPS_R_ZERO, -4 * 4);
+				emit_instr(ctx, nop);
+				break;
+			}
+		} else { /* BPF_MEM */
+			switch (BPF_SIZE(insn->code)) {
+			case BPF_B:
+				emit_instr(ctx, sb, src, mem_off, dst);
+				break;
+			case BPF_H:
+				emit_instr(ctx, sh, src, mem_off, dst);
+				break;
+			case BPF_W:
+				emit_instr(ctx, sw, src, mem_off, dst);
+				break;
+			case BPF_DW:
+				if (get_reg_val_type(ctx, this_idx, insn->src_reg) == REG_32BIT) {
+					emit_instr(ctx, daddu, MIPS_R_AT, src, MIPS_R_ZERO);
+					emit_instr(ctx, dinsu, MIPS_R_AT, MIPS_R_ZERO, 32, 32);
+					src = MIPS_R_AT;
+				}
+				emit_instr(ctx, sd, src, mem_off, dst);
+				break;
+			}
+		}
+		break;
+
+	default:
+		pr_err("NOT HANDLED %d - (%02x)\n",
+		       this_idx, (unsigned int)insn->code);
+		return -EINVAL;
+	}
+	return 1;
+}
+
+#define RVT_VISITED_MASK 0xc000000000000000ull
+#define RVT_FALL_THROUGH 0x4000000000000000ull
+#define RVT_BRANCH_TAKEN 0x8000000000000000ull
+#define RVT_DONE (RVT_FALL_THROUGH | RVT_BRANCH_TAKEN)
+
+static int build_int_body(struct jit_ctx *ctx)
+{
+	const struct bpf_prog *prog = ctx->skf;
+	const struct bpf_insn *insn;
+	int i, r;
+
+	for (i = 0; i < prog->len; ) {
+		insn = prog->insnsi + i;
+		if ((ctx->reg_val_types[i] & RVT_VISITED_MASK) == 0) {
+			/* dead instruction, don't emit it. */
+			i++;
+			continue;
+		}
+
+		if (ctx->target == NULL)
+			ctx->offsets[i] = (ctx->offsets[i] & OFFSETS_B_CONV) | (ctx->idx * 4);
+
+		r = build_one_insn(insn, ctx, i, prog->len);
+		if (r < 0)
+			return r;
+		i += r;
+	}
+	/* epilogue offset */
+	if (ctx->target == NULL)
+		ctx->offsets[i] = ctx->idx * 4;
+
+	/*
+	 * All exits have an offset of the epilogue, some offsets may
+	 * not have been set due to banch-around threading, so set
+	 * them now.
+	 */
+	if (ctx->target == NULL)
+		for (i = 0; i < prog->len; i++) {
+			insn = prog->insnsi + i;
+			if (insn->code == (BPF_JMP | BPF_EXIT))
+				ctx->offsets[i] = ctx->idx * 4;
+		}
+	return 0;
+}
+
+/* return the last idx processed, or negative for error */
+static int reg_val_propagate_range(struct jit_ctx *ctx, u64 initial_rvt,
+				   int start_idx, bool follow_taken)
+{
+	const struct bpf_prog *prog = ctx->skf;
+	const struct bpf_insn *insn;
+	u64 exit_rvt = initial_rvt;
+	u64 *rvt = ctx->reg_val_types;
+	int idx;
+	int reg;
+
+	for (idx = start_idx; idx < prog->len; idx++) {
+		rvt[idx] = (rvt[idx] & RVT_VISITED_MASK) | exit_rvt;
+		insn = prog->insnsi + idx;
+		switch (BPF_CLASS(insn->code)) {
+		case BPF_ALU:
+			switch (BPF_OP(insn->code)) {
+			case BPF_ADD:
+			case BPF_SUB:
+			case BPF_MUL:
+			case BPF_DIV:
+			case BPF_OR:
+			case BPF_AND:
+			case BPF_LSH:
+			case BPF_RSH:
+			case BPF_NEG:
+			case BPF_MOD:
+			case BPF_XOR:
+				set_reg_val_type(&exit_rvt, insn->dst_reg, REG_32BIT);
+				break;
+			case BPF_MOV:
+				if (BPF_SRC(insn->code)) {
+					set_reg_val_type(&exit_rvt, insn->dst_reg, REG_32BIT);
+				} else {
+					/* IMM to REG move*/
+					if (insn->imm >= 0)
+						set_reg_val_type(&exit_rvt, insn->dst_reg, REG_32BIT_POS);
+					else
+						set_reg_val_type(&exit_rvt, insn->dst_reg, REG_32BIT);
+				}
+				break;
+			case BPF_END:
+				if (insn->imm == 64)
+					set_reg_val_type(&exit_rvt, insn->dst_reg, REG_64BIT);
+				else if (insn->imm == 32)
+					set_reg_val_type(&exit_rvt, insn->dst_reg, REG_32BIT);
+				else /* insn->imm == 16 */
+					set_reg_val_type(&exit_rvt, insn->dst_reg, REG_32BIT_POS);
+				break;
+			}
+			rvt[idx] |= RVT_DONE;
+			break;
+		case BPF_ALU64:
+			switch (BPF_OP(insn->code)) {
+			case BPF_MOV:
+				if (BPF_SRC(insn->code)) {
+					/* REG to REG move*/
+					set_reg_val_type(&exit_rvt, insn->dst_reg, REG_64BIT);
+				} else {
+					/* IMM to REG move*/
+					if (insn->imm >= 0)
+						set_reg_val_type(&exit_rvt, insn->dst_reg, REG_32BIT_POS);
+					else
+						set_reg_val_type(&exit_rvt, insn->dst_reg, REG_64BIT_32BIT);
+				}
+				break;
+			default:
+				set_reg_val_type(&exit_rvt, insn->dst_reg, REG_64BIT);
+			}
+			rvt[idx] |= RVT_DONE;
+			break;
+		case BPF_LD:
+			switch (BPF_SIZE(insn->code)) {
+			case BPF_DW:
+				if (BPF_MODE(insn->code) == BPF_IMM) {
+					s64 val;
+
+					val = (s64)((u32)insn->imm | ((u64)(insn + 1)->imm << 32));
+					if (val > 0 && val <= S32_MAX)
+						set_reg_val_type(&exit_rvt, insn->dst_reg, REG_32BIT_POS);
+					else if (val >= S32_MIN && val <= S32_MAX)
+						set_reg_val_type(&exit_rvt, insn->dst_reg, REG_64BIT_32BIT);
+					else
+						set_reg_val_type(&exit_rvt, insn->dst_reg, REG_64BIT);
+					rvt[idx] |= RVT_DONE;
+					idx++;
+				} else {
+					set_reg_val_type(&exit_rvt, insn->dst_reg, REG_64BIT);
+				}
+				break;
+			case BPF_B:
+			case BPF_H:
+				set_reg_val_type(&exit_rvt, insn->dst_reg, REG_32BIT_POS);
+				break;
+			case BPF_W:
+				if (BPF_MODE(insn->code) == BPF_IMM)
+					set_reg_val_type(&exit_rvt, insn->dst_reg,
+							 insn->imm >= 0 ? REG_32BIT_POS : REG_32BIT);
+				else
+					set_reg_val_type(&exit_rvt, insn->dst_reg, REG_32BIT);
+				break;
+			}
+			rvt[idx] |= RVT_DONE;
+			break;
+		case BPF_LDX:
+			switch (BPF_SIZE(insn->code)) {
+			case BPF_DW:
+				set_reg_val_type(&exit_rvt, insn->dst_reg, REG_64BIT);
+				break;
+			case BPF_B:
+			case BPF_H:
+				set_reg_val_type(&exit_rvt, insn->dst_reg, REG_32BIT_POS);
+				break;
+			case BPF_W:
+				set_reg_val_type(&exit_rvt, insn->dst_reg, REG_32BIT);
+				break;
+			}
+			rvt[idx] |= RVT_DONE;
+			break;
+		case BPF_JMP:
+			switch (BPF_OP(insn->code)) {
+			case BPF_EXIT:
+				rvt[idx] = RVT_DONE | exit_rvt;
+				rvt[prog->len] = exit_rvt;
+				return idx;
+			case BPF_JA:
+				rvt[idx] |= RVT_DONE;
+				idx += insn->off;
+				break;
+			case BPF_JEQ:
+			case BPF_JGT:
+			case BPF_JGE:
+			case BPF_JSET:
+			case BPF_JNE:
+			case BPF_JSGT:
+			case BPF_JSGE:
+				if (follow_taken) {
+					rvt[idx] |= RVT_BRANCH_TAKEN;
+					idx += insn->off;
+					follow_taken = false;
+				} else {
+					rvt[idx] |= RVT_FALL_THROUGH;
+				}
+				break;
+			case BPF_CALL:
+				set_reg_val_type(&exit_rvt, BPF_REG_0, REG_64BIT);
+				/* Upon call return, argument registers are clobbered. */
+				for (reg = BPF_REG_0; reg <= BPF_REG_5; reg++)
+					set_reg_val_type(&exit_rvt, reg, REG_64BIT);
+
+				rvt[idx] |= RVT_DONE;
+				break;
+			default:
+				WARN(1, "Unhandled BPF_JMP case.\n");
+				rvt[idx] |= RVT_DONE;
+				break;
+			}
+			break;
+		default:
+			rvt[idx] |= RVT_DONE;
+			break;
+		}
+	}
+	return idx;
+}
+
+/*
+ * Track the value range (i.e. 32-bit vs. 64-bit) of each register at
+ * each eBPF insn.  This allows unneeded sign and zero extension
+ * operations to be omitted.
+ *
+ * Doesn't handle yet confluence of control paths with conflicting
+ * ranges, but it is good enough for most sane code.
+ */
+static int reg_val_propagate(struct jit_ctx *ctx)
+{
+	const struct bpf_prog *prog = ctx->skf;
+	u64 exit_rvt;
+	int reg;
+	int i;
+
+	/*
+	 * 11 registers * 3 bits/reg leaves top bits free for other
+	 * uses.  Bit-62..63 used to see if we have visited an insn.
+	 */
+	exit_rvt = 0;
+
+	/* Upon entry, argument registers are 64-bit. */
+	for (reg = BPF_REG_1; reg <= BPF_REG_5; reg++)
+		set_reg_val_type(&exit_rvt, reg, REG_64BIT);
+
+	/*
+	 * First follow all conditional branches on the fall-through
+	 * edge of control flow..
+	 */
+	reg_val_propagate_range(ctx, exit_rvt, 0, false);
+restart_search:
+	/*
+	 * Then repeatedly find the first conditional branch where
+	 * both edges of control flow have not been taken, and follow
+	 * the branch taken edge.  We will end up restarting the
+	 * search once per conditional branch insn.
+	 */
+	for (i = 0; i < prog->len; i++) {
+		u64 rvt = ctx->reg_val_types[i];
+
+		if ((rvt & RVT_VISITED_MASK) == RVT_DONE ||
+		    (rvt & RVT_VISITED_MASK) == 0)
+			continue;
+		if ((rvt & RVT_VISITED_MASK) == RVT_FALL_THROUGH) {
+			reg_val_propagate_range(ctx, rvt & ~RVT_VISITED_MASK, i, true);
+		} else { /* RVT_BRANCH_TAKEN */
+			WARN(1, "Unexpected RVT_BRANCH_TAKEN case.\n");
+			reg_val_propagate_range(ctx, rvt & ~RVT_VISITED_MASK, i, false);
+		}
+		goto restart_search;
+	}
+	/*
+	 * Eventually all conditional branches have been followed on
+	 * both branches and we are done.  Any insn that has not been
+	 * visited at this point is dead.
+	 */
+
+	return 0;
+}
+
+static void jit_fill_hole(void *area, unsigned int size)
+{
+	u32 *p;
+
+	/* We are guaranteed to have aligned memory. */
+	for (p = area; size >= sizeof(u32); size -= sizeof(u32))
+		uasm_i_break(&p, BRK_BUG); /* Increments p */
+}
+
+struct bpf_prog *bpf_int_jit_compile(struct bpf_prog *prog)
+{
+	struct bpf_prog *orig_prog = prog;
+	bool tmp_blinded = false;
+	struct bpf_prog *tmp;
+	struct bpf_binary_header *header = NULL;
+	struct jit_ctx ctx;
+	unsigned int image_size;
+	u8 *image_ptr;
+
+	if (!bpf_jit_enable || !cpu_has_mips64r2)
+		return prog;
+
+	tmp = bpf_jit_blind_constants(prog);
+	/* If blinding was requested and we failed during blinding,
+	 * we must fall back to the interpreter.
+	 */
+	if (IS_ERR(tmp))
+		return orig_prog;
+	if (tmp != prog) {
+		tmp_blinded = true;
+		prog = tmp;
+	}
+
+	memset(&ctx, 0, sizeof(ctx));
+
+	ctx.offsets = kcalloc(prog->len + 1, sizeof(*ctx.offsets), GFP_KERNEL);
+	if (ctx.offsets == NULL)
+		goto out_err;
+
+	ctx.reg_val_types = kcalloc(prog->len + 1, sizeof(*ctx.reg_val_types), GFP_KERNEL);
+	if (ctx.reg_val_types == NULL)
+		goto out_err;
+
+	ctx.skf = prog;
+
+	if (reg_val_propagate(&ctx))
+		goto out_err;
+
+	/*
+	 * First pass discovers used resources and instruction offsets
+	 * assuming short branches are used.
+	 */
+	if (build_int_body(&ctx))
+		goto out_err;
+
+	/*
+	 * If no calls are made (EBPF_SAVE_RA), then tail call count
+	 * in $v1, else we must save in n$s4.
+	 */
+	if (ctx.flags & EBPF_SEEN_TC) {
+		if (ctx.flags & EBPF_SAVE_RA)
+			ctx.flags |= EBPF_SAVE_S4;
+		else
+			ctx.flags |= EBPF_TCC_IN_V1;
+	}
+
+	/*
+	 * Second pass generates offsets, if any branches are out of
+	 * range a jump-around long sequence is generated, and we have
+	 * to try again from the beginning to generate the new
+	 * offsets.  This is done until no additional conversions are
+	 * necessary.
+	 */
+	do {
+		ctx.idx = 0;
+		ctx.gen_b_offsets = 1;
+		ctx.long_b_conversion = 0;
+		if (gen_int_prologue(&ctx))
+			goto out_err;
+		if (build_int_body(&ctx))
+			goto out_err;
+		if (build_int_epilogue(&ctx, MIPS_R_RA))
+			goto out_err;
+	} while (ctx.long_b_conversion);
+
+	image_size = 4 * ctx.idx;
+
+	header = bpf_jit_binary_alloc(image_size, &image_ptr,
+				      sizeof(u32), jit_fill_hole);
+	if (header == NULL)
+		goto out_err;
+
+	ctx.target = (u32 *)image_ptr;
+
+	/* Third pass generates the code */
+	ctx.idx = 0;
+	if (gen_int_prologue(&ctx))
+		goto out_err;
+	if (build_int_body(&ctx))
+		goto out_err;
+	if (build_int_epilogue(&ctx, MIPS_R_RA))
+		goto out_err;
+
+	/* Update the icache */
+	flush_icache_range((unsigned long)ctx.target,
+			   (unsigned long)(ctx.target + ctx.idx * sizeof(u32)));
+
+	if (bpf_jit_enable > 1)
+		/* Dump JIT code */
+		bpf_jit_dump(prog->len, image_size, 2, ctx.target);
+
+	bpf_jit_binary_lock_ro(header);
+	prog->bpf_func = (void *)ctx.target;
+	prog->jited = 1;
+	prog->jited_len = image_size;
+out_normal:
+	if (tmp_blinded)
+		bpf_jit_prog_release_other(prog, prog == orig_prog ?
+					   tmp : orig_prog);
+	kfree(ctx.offsets);
+	kfree(ctx.reg_val_types);
+
+	return prog;
+
+out_err:
+	prog = orig_prog;
+	if (header)
+		bpf_jit_binary_free(header);
+	goto out_normal;
+}
diff --git a/arch/mips/pci/pci.c b/arch/mips/pci/pci.c
index bd67ac74fe2d..9632436d74d7 100644
--- a/arch/mips/pci/pci.c
+++ b/arch/mips/pci/pci.c
@@ -28,16 +28,15 @@ EXPORT_SYMBOL(PCIBIOS_MIN_MEM);
 
 static int __init pcibios_set_cache_line_size(void)
 {
-	struct cpuinfo_mips *c = &current_cpu_data;
 	unsigned int lsize;
 
 	/*
 	 * Set PCI cacheline size to that of the highest level in the
 	 * cache hierarchy.
 	 */
-	lsize = c->dcache.linesz;
-	lsize = c->scache.linesz ? : lsize;
-	lsize = c->tcache.linesz ? : lsize;
+	lsize = cpu_dcache_line_size();
+	lsize = cpu_scache_line_size() ? : lsize;
+	lsize = cpu_tcache_line_size() ? : lsize;
 
 	BUG_ON(!lsize);
 
diff --git a/arch/mips/ralink/mt7620.c b/arch/mips/ralink/mt7620.c
index 094a0ee4af46..9be8b08ae46b 100644
--- a/arch/mips/ralink/mt7620.c
+++ b/arch/mips/ralink/mt7620.c
@@ -12,6 +12,7 @@
 
 #include <linux/kernel.h>
 #include <linux/init.h>
+#include <linux/bug.h>
 
 #include <asm/mipsregs.h>
 #include <asm/mach-ralink/ralink_regs.h>
diff --git a/arch/mips/vdso/gettimeofday.c b/arch/mips/vdso/gettimeofday.c
index ce89c9e294f9..e2690d7ca4dd 100644
--- a/arch/mips/vdso/gettimeofday.c
+++ b/arch/mips/vdso/gettimeofday.c
@@ -20,6 +20,48 @@
 #include <asm/unistd.h>
 #include <asm/vdso.h>
 
+#ifdef CONFIG_MIPS_CLOCK_VSYSCALL
+
+static __always_inline long gettimeofday_fallback(struct timeval *_tv,
+					  struct timezone *_tz)
+{
+	register struct timezone *tz asm("a1") = _tz;
+	register struct timeval *tv asm("a0") = _tv;
+	register long ret asm("v0");
+	register long nr asm("v0") = __NR_gettimeofday;
+	register long error asm("a3");
+
+	asm volatile(
+	"       syscall\n"
+	: "=r" (ret), "=r" (error)
+	: "r" (tv), "r" (tz), "r" (nr)
+	: "$1", "$3", "$8", "$9", "$10", "$11", "$12", "$13",
+	  "$14", "$15", "$24", "$25", "hi", "lo", "memory");
+
+	return error ? -ret : ret;
+}
+
+#endif
+
+static __always_inline long clock_gettime_fallback(clockid_t _clkid,
+					   struct timespec *_ts)
+{
+	register struct timespec *ts asm("a1") = _ts;
+	register clockid_t clkid asm("a0") = _clkid;
+	register long ret asm("v0");
+	register long nr asm("v0") = __NR_clock_gettime;
+	register long error asm("a3");
+
+	asm volatile(
+	"       syscall\n"
+	: "=r" (ret), "=r" (error)
+	: "r" (clkid), "r" (ts), "r" (nr)
+	: "$1", "$3", "$8", "$9", "$10", "$11", "$12", "$13",
+	  "$14", "$15", "$24", "$25", "hi", "lo", "memory");
+
+	return error ? -ret : ret;
+}
+
 static __always_inline int do_realtime_coarse(struct timespec *ts,
 					      const union mips_vdso_data *data)
 {
@@ -39,8 +81,8 @@ static __always_inline int do_monotonic_coarse(struct timespec *ts,
 					       const union mips_vdso_data *data)
 {
 	u32 start_seq;
-	u32 to_mono_sec;
-	u32 to_mono_nsec;
+	u64 to_mono_sec;
+	u64 to_mono_nsec;
 
 	do {
 		start_seq = vdso_data_read_begin(data);
@@ -148,8 +190,8 @@ static __always_inline int do_monotonic(struct timespec *ts,
 {
 	u32 start_seq;
 	u64 ns;
-	u32 to_mono_sec;
-	u32 to_mono_nsec;
+	u64 to_mono_sec;
+	u64 to_mono_nsec;
 
 	do {
 		start_seq = vdso_data_read_begin(data);
@@ -187,7 +229,7 @@ int __vdso_gettimeofday(struct timeval *tv, struct timezone *tz)
 
 	ret = do_realtime(&ts, data);
 	if (ret)
-		return ret;
+		return gettimeofday_fallback(tv, tz);
 
 	if (tv) {
 		tv->tv_sec = ts.tv_sec;
@@ -202,12 +244,12 @@ int __vdso_gettimeofday(struct timeval *tv, struct timezone *tz)
 	return 0;
 }
 
-#endif /* CONFIG_CLKSRC_MIPS_GIC */
+#endif /* CONFIG_MIPS_CLOCK_VSYSCALL */
 
 int __vdso_clock_gettime(clockid_t clkid, struct timespec *ts)
 {
 	const union mips_vdso_data *data = get_vdso_data();
-	int ret;
+	int ret = -1;
 
 	switch (clkid) {
 	case CLOCK_REALTIME_COARSE:
@@ -223,10 +265,11 @@ int __vdso_clock_gettime(clockid_t clkid, struct timespec *ts)
 		ret = do_monotonic(ts, data);
 		break;
 	default:
-		ret = -ENOSYS;
 		break;
 	}
 
-	/* If we return -ENOSYS libc should fall back to a syscall. */
+	if (ret)
+		ret = clock_gettime_fallback(clkid, ts);
+
 	return ret;
 }
diff --git a/arch/mn10300/include/asm/bug.h b/arch/mn10300/include/asm/bug.h
index aa6a38886391..811414fb002d 100644
--- a/arch/mn10300/include/asm/bug.h
+++ b/arch/mn10300/include/asm/bug.h
@@ -21,7 +21,7 @@ do {								\
 	asm volatile(						\
 		"	syscall 15			\n"	\
 		"0:					\n"	\
-		"	.section __bug_table,\"a\"	\n"	\
+		"	.section __bug_table,\"aw\"	\n"	\
 		"	.long 0b,%0,%1			\n"	\
 		"	.previous			\n"	\
 		:						\
diff --git a/arch/mn10300/include/asm/nmi.h b/arch/mn10300/include/asm/nmi.h
index f3671cbbc117..b05627597b1b 100644
--- a/arch/mn10300/include/asm/nmi.h
+++ b/arch/mn10300/include/asm/nmi.h
@@ -11,4 +11,6 @@
 #ifndef _ASM_NMI_H
 #define _ASM_NMI_H
 
+extern void arch_touch_nmi_watchdog(void);
+
 #endif /* _ASM_NMI_H */
diff --git a/arch/mn10300/kernel/mn10300-watchdog-low.S b/arch/mn10300/kernel/mn10300-watchdog-low.S
index f2f5c9cfaabd..34f8773de7d0 100644
--- a/arch/mn10300/kernel/mn10300-watchdog-low.S
+++ b/arch/mn10300/kernel/mn10300-watchdog-low.S
@@ -50,9 +50,9 @@ watchdog_handler:
 #   we can't inline it)
 #
 ###############################################################################
-	.globl	touch_nmi_watchdog
-	.type	touch_nmi_watchdog,@function
-touch_nmi_watchdog:
+	.globl	arch_touch_nmi_watchdog
+	.type	arch_touch_nmi_watchdog,@function
+arch_touch_nmi_watchdog:
 	clr	d0
 	clr	d1
 	mov	watchdog_alert_counter, a0
@@ -63,4 +63,4 @@ touch_nmi_watchdog:
 	lne
 	ret	[],0
 
-	.size	touch_nmi_watchdog,.-touch_nmi_watchdog
+	.size	arch_touch_nmi_watchdog,.-arch_touch_nmi_watchdog
diff --git a/arch/mn10300/kernel/mn10300-watchdog.c b/arch/mn10300/kernel/mn10300-watchdog.c
index a2d8e6938d67..0d5641beadf5 100644
--- a/arch/mn10300/kernel/mn10300-watchdog.c
+++ b/arch/mn10300/kernel/mn10300-watchdog.c
@@ -31,7 +31,7 @@ static unsigned int watchdog;
 static unsigned int watchdog_hz = 1;
 unsigned int watchdog_alert_counter[NR_CPUS];
 
-EXPORT_SYMBOL(touch_nmi_watchdog);
+EXPORT_SYMBOL(arch_touch_nmi_watchdog);
 
 /*
  * the best way to detect whether a CPU has a 'hard lockup' problem
diff --git a/arch/nios2/include/asm/Kbuild b/arch/nios2/include/asm/Kbuild
index e1a843def56f..896c26ae0da9 100644
--- a/arch/nios2/include/asm/Kbuild
+++ b/arch/nios2/include/asm/Kbuild
@@ -1,8 +1,6 @@
 generic-y += atomic.h
-generic-y += auxvec.h
 generic-y += barrier.h
 generic-y += bitops.h
-generic-y += bitsperlong.h
 generic-y += bug.h
 generic-y += bugs.h
 generic-y += clkdev.h
@@ -12,55 +10,33 @@ generic-y += device.h
 generic-y += div64.h
 generic-y += dma.h
 generic-y += emergency-restart.h
-generic-y += errno.h
 generic-y += exec.h
 generic-y += extable.h
 generic-y += fb.h
-generic-y += fcntl.h
 generic-y += ftrace.h
 generic-y += futex.h
 generic-y += hardirq.h
 generic-y += hw_irq.h
-generic-y += ioctl.h
-generic-y += ioctls.h
-generic-y += ipcbuf.h
 generic-y += irq_regs.h
 generic-y += irq_work.h
 generic-y += kdebug.h
 generic-y += kmap_types.h
-generic-y += kvm_para.h
+generic-y += kprobes.h
 generic-y += local.h
 generic-y += mcs_spinlock.h
 generic-y += mm-arch-hooks.h
-generic-y += mman.h
 generic-y += module.h
-generic-y += msgbuf.h
-generic-y += param.h
 generic-y += pci.h
 generic-y += percpu.h
-generic-y += poll.h
-generic-y += posix_types.h
 generic-y += preempt.h
-generic-y += resource.h
 generic-y += sections.h
 generic-y += segment.h
-generic-y += sembuf.h
 generic-y += serial.h
-generic-y += shmbuf.h
-generic-y += signal.h
-generic-y += socket.h
-generic-y += sockios.h
 generic-y += spinlock.h
-generic-y += stat.h
-generic-y += statfs.h
-generic-y += termbits.h
-generic-y += termios.h
 generic-y += topology.h
 generic-y += trace_clock.h
-generic-y += types.h
 generic-y += unaligned.h
 generic-y += user.h
 generic-y += vga.h
 generic-y += word-at-a-time.h
 generic-y += xor.h
-generic-y += kprobes.h
diff --git a/arch/nios2/include/asm/signal.h b/arch/nios2/include/asm/signal.h
deleted file mode 100644
index bbcf11eecb01..000000000000
--- a/arch/nios2/include/asm/signal.h
+++ /dev/null
@@ -1,22 +0,0 @@
-/*
- * Copyright Altera Corporation (C) 2013. All rights reserved
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms and conditions of the GNU General Public License,
- * version 2, as published by the Free Software Foundation.
- *
- * This program is distributed in the hope it will be useful, but WITHOUT
- * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
- * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
- * more details.
- *
- * You should have received a copy of the GNU General Public License along with
- * this program.  If not, see <http://www.gnu.org/licenses/>.
- *
- */
-#ifndef _NIOS2_SIGNAL_H
-#define _NIOS2_SIGNAL_H
-
-#include <uapi/asm/signal.h>
-
-#endif	/* _NIOS2_SIGNAL_H */
diff --git a/arch/nios2/include/uapi/asm/Kbuild b/arch/nios2/include/uapi/asm/Kbuild
index 51eff5bc2eb4..ffca24da7647 100644
--- a/arch/nios2/include/uapi/asm/Kbuild
+++ b/arch/nios2/include/uapi/asm/Kbuild
@@ -1,6 +1,29 @@
 # UAPI Header export list
 include include/uapi/asm-generic/Kbuild.asm
 
+generic-y += auxvec.h
+generic-y += bitsperlong.h
+generic-y += errno.h
+generic-y += fcntl.h
+generic-y += ioctl.h
+generic-y += ioctls.h
+generic-y += ipcbuf.h
+generic-y += kvm_para.h
+generic-y += mman.h
+generic-y += msgbuf.h
+generic-y += param.h
+generic-y += poll.h
+generic-y += posix_types.h
+generic-y += resource.h
+generic-y += sembuf.h
 generic-y += setup.h
+generic-y += shmbuf.h
 generic-y += siginfo.h
+generic-y += socket.h
+generic-y += sockios.h
+generic-y += stat.h
+generic-y += statfs.h
+generic-y += termbits.h
+generic-y += termios.h
+generic-y += types.h
 generic-y += ucontext.h
diff --git a/arch/openrisc/include/asm/Kbuild b/arch/openrisc/include/asm/Kbuild
index 091585addb91..5bea416a7792 100644
--- a/arch/openrisc/include/asm/Kbuild
+++ b/arch/openrisc/include/asm/Kbuild
@@ -1,6 +1,4 @@
-generic-y += auxvec.h
 generic-y += barrier.h
-generic-y += bitsperlong.h
 generic-y += bug.h
 generic-y += bugs.h
 generic-y += cacheflush.h
@@ -11,57 +9,32 @@ generic-y += device.h
 generic-y += div64.h
 generic-y += dma.h
 generic-y += emergency-restart.h
-generic-y += errno.h
 generic-y += exec.h
 generic-y += extable.h
 generic-y += fb.h
-generic-y += fcntl.h
 generic-y += ftrace.h
 generic-y += hardirq.h
 generic-y += hw_irq.h
-generic-y += ioctl.h
-generic-y += ioctls.h
-generic-y += ipcbuf.h
 generic-y += irq.h
 generic-y += irq_regs.h
 generic-y += irq_work.h
 generic-y += kdebug.h
 generic-y += kmap_types.h
-generic-y += kvm_para.h
+generic-y += kprobes.h
 generic-y += local.h
 generic-y += mcs_spinlock.h
 generic-y += mm-arch-hooks.h
-generic-y += mman.h
 generic-y += module.h
-generic-y += msgbuf.h
 generic-y += pci.h
 generic-y += percpu.h
-generic-y += poll.h
-generic-y += posix_types.h
 generic-y += preempt.h
-generic-y += resource.h
 generic-y += sections.h
 generic-y += segment.h
-generic-y += sembuf.h
-generic-y += setup.h
-generic-y += shmbuf.h
-generic-y += shmparam.h
-generic-y += signal.h
-generic-y += socket.h
-generic-y += sockios.h
-generic-y += stat.h
-generic-y += statfs.h
 generic-y += string.h
-generic-y += swab.h
 generic-y += switch_to.h
-generic-y += termbits.h
-generic-y += termios.h
 generic-y += topology.h
 generic-y += trace_clock.h
-generic-y += types.h
-generic-y += ucontext.h
 generic-y += user.h
 generic-y += vga.h
 generic-y += word-at-a-time.h
 generic-y += xor.h
-generic-y += kprobes.h
diff --git a/arch/openrisc/include/uapi/asm/Kbuild b/arch/openrisc/include/uapi/asm/Kbuild
index b55fc2ae1e8c..62286dbeb904 100644
--- a/arch/openrisc/include/uapi/asm/Kbuild
+++ b/arch/openrisc/include/uapi/asm/Kbuild
@@ -1,4 +1,31 @@
 # UAPI Header export list
 include include/uapi/asm-generic/Kbuild.asm
 
+generic-y += auxvec.h
+generic-y += bitsperlong.h
+generic-y += errno.h
+generic-y += fcntl.h
+generic-y += ioctl.h
+generic-y += ioctls.h
+generic-y += ipcbuf.h
+generic-y += kvm_para.h
+generic-y += mman.h
+generic-y += msgbuf.h
+generic-y += poll.h
+generic-y += posix_types.h
+generic-y += resource.h
+generic-y += sembuf.h
+generic-y += setup.h
+generic-y += shmbuf.h
+generic-y += shmparam.h
 generic-y += siginfo.h
+generic-y += signal.h
+generic-y += socket.h
+generic-y += sockios.h
+generic-y += stat.h
+generic-y += statfs.h
+generic-y += swab.h
+generic-y += termbits.h
+generic-y += termios.h
+generic-y += types.h
+generic-y += ucontext.h
diff --git a/arch/parisc/Kconfig b/arch/parisc/Kconfig
index 531da9eb8f43..dda1f558ef35 100644
--- a/arch/parisc/Kconfig
+++ b/arch/parisc/Kconfig
@@ -47,6 +47,9 @@ config PARISC
 	  and later HP3000 series).  The PA-RISC Linux project home page is
 	  at <http://www.parisc-linux.org/>.
 
+config CPU_BIG_ENDIAN
+	def_bool y
+
 config MMU
 	def_bool y
 
diff --git a/arch/parisc/configs/712_defconfig b/arch/parisc/configs/712_defconfig
index 143d02652792..ccc109761f44 100644
--- a/arch/parisc/configs/712_defconfig
+++ b/arch/parisc/configs/712_defconfig
@@ -1,11 +1,9 @@
-CONFIG_EXPERIMENTAL=y
 # CONFIG_LOCALVERSION_AUTO is not set
 CONFIG_SYSVIPC=y
 CONFIG_POSIX_MQUEUE=y
 CONFIG_IKCONFIG=y
 CONFIG_IKCONFIG_PROC=y
 CONFIG_LOG_BUF_SHIFT=16
-CONFIG_SYSFS_DEPRECATED_V2=y
 CONFIG_BLK_DEV_INITRD=y
 CONFIG_KALLSYMS_ALL=y
 CONFIG_SLAB=y
@@ -14,7 +12,6 @@ CONFIG_OPROFILE=m
 CONFIG_MODULES=y
 CONFIG_MODULE_UNLOAD=y
 CONFIG_MODULE_FORCE_UNLOAD=y
-# CONFIG_BLK_DEV_BSG is not set
 CONFIG_PA7100LC=y
 CONFIG_PREEMPT_VOLUNTARY=y
 CONFIG_GSC_LASI=y
@@ -32,11 +29,9 @@ CONFIG_IP_PNP_DHCP=y
 CONFIG_IP_PNP_BOOTP=y
 CONFIG_INET_AH=m
 CONFIG_INET_ESP=m
-# CONFIG_INET_LRO is not set
 CONFIG_INET_DIAG=m
 # CONFIG_IPV6 is not set
 CONFIG_NETFILTER=y
-CONFIG_IP_NF_QUEUE=m
 CONFIG_LLC2=m
 CONFIG_NET_PKTGEN=m
 CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug"
@@ -65,21 +60,20 @@ CONFIG_MD_LINEAR=m
 CONFIG_MD_RAID0=m
 CONFIG_MD_RAID1=m
 CONFIG_NETDEVICES=y
-CONFIG_DUMMY=m
 CONFIG_BONDING=m
+CONFIG_DUMMY=m
 CONFIG_TUN=m
-CONFIG_NET_ETHERNET=y
-CONFIG_MII=m
 CONFIG_LASI_82596=y
 CONFIG_PPP=m
-CONFIG_PPP_ASYNC=m
-CONFIG_PPP_SYNC_TTY=m
-CONFIG_PPP_DEFLATE=m
 CONFIG_PPP_BSDCOMP=m
+CONFIG_PPP_DEFLATE=m
 CONFIG_PPP_MPPE=m
 CONFIG_PPPOE=m
+CONFIG_PPP_ASYNC=m
+CONFIG_PPP_SYNC_TTY=m
 # CONFIG_KEYBOARD_HIL_OLD is not set
 CONFIG_MOUSE_SERIAL=m
+CONFIG_LEGACY_PTY_COUNT=64
 CONFIG_SERIAL_8250=y
 CONFIG_SERIAL_8250_CONSOLE=y
 CONFIG_SERIAL_8250_NR_UARTS=17
@@ -88,22 +82,17 @@ CONFIG_SERIAL_8250_MANY_PORTS=y
 CONFIG_SERIAL_8250_SHARE_IRQ=y
 # CONFIG_SERIAL_MUX is not set
 CONFIG_PDC_CONSOLE=y
-CONFIG_LEGACY_PTY_COUNT=64
 CONFIG_PRINTER=m
 CONFIG_PPDEV=m
 # CONFIG_HW_RANDOM is not set
 CONFIG_RAW_DRIVER=y
 # CONFIG_HWMON is not set
-CONFIG_VIDEO_OUTPUT_CONTROL=m
 CONFIG_FB=y
 CONFIG_FB_MODE_HELPERS=y
 CONFIG_FB_TILEBLITTING=y
 CONFIG_DUMMY_CONSOLE_COLUMNS=128
 CONFIG_DUMMY_CONSOLE_ROWS=48
 CONFIG_FRAMEBUFFER_CONSOLE=y
-CONFIG_FONTS=y
-CONFIG_FONT_8x8=y
-CONFIG_FONT_8x16=y
 CONFIG_LOGO=y
 # CONFIG_LOGO_LINUX_MONO is not set
 # CONFIG_LOGO_LINUX_VGA16 is not set
@@ -111,13 +100,9 @@ CONFIG_LOGO=y
 CONFIG_SOUND=y
 CONFIG_SND=y
 CONFIG_SND_SEQUENCER=y
-CONFIG_SND_MIXER_OSS=y
-CONFIG_SND_PCM_OSS=y
-CONFIG_SND_SEQUENCER_OSS=y
 CONFIG_SND_HARMONY=y
 CONFIG_EXT2_FS=y
 CONFIG_EXT3_FS=y
-# CONFIG_EXT3_FS_XATTR is not set
 CONFIG_JFS_FS=m
 CONFIG_XFS_FS=m
 CONFIG_AUTOFS4_FS=y
@@ -130,14 +115,10 @@ CONFIG_PROC_KCORE=y
 CONFIG_TMPFS=y
 CONFIG_UFS_FS=m
 CONFIG_NFS_FS=y
-CONFIG_NFS_V3=y
 CONFIG_NFS_V4=y
 CONFIG_ROOT_NFS=y
 CONFIG_NFSD=m
 CONFIG_NFSD_V4=y
-CONFIG_RPCSEC_GSS_SPKM3=m
-CONFIG_SMB_FS=m
-CONFIG_SMB_NLS_DEFAULT=y
 CONFIG_CIFS=m
 CONFIG_NLS_CODEPAGE_437=m
 CONFIG_NLS_CODEPAGE_737=m
@@ -177,21 +158,16 @@ CONFIG_NLS_ISO8859_15=m
 CONFIG_NLS_KOI8_R=m
 CONFIG_NLS_KOI8_U=m
 CONFIG_NLS_UTF8=m
-CONFIG_MAGIC_SYSRQ=y
 CONFIG_DEBUG_FS=y
+CONFIG_MAGIC_SYSRQ=y
 CONFIG_DEBUG_KERNEL=y
 CONFIG_DEBUG_MUTEXES=y
-# CONFIG_RCU_CPU_STALL_DETECTOR is not set
-CONFIG_CRYPTO_NULL=m
 CONFIG_CRYPTO_TEST=m
 CONFIG_CRYPTO_HMAC=y
-CONFIG_CRYPTO_MD4=m
 CONFIG_CRYPTO_MICHAEL_MIC=m
-CONFIG_CRYPTO_SHA256=m
 CONFIG_CRYPTO_SHA512=m
 CONFIG_CRYPTO_TGR192=m
 CONFIG_CRYPTO_WP512=m
-CONFIG_CRYPTO_AES=m
 CONFIG_CRYPTO_ANUBIS=m
 CONFIG_CRYPTO_BLOWFISH=m
 CONFIG_CRYPTO_CAST6=m
@@ -200,6 +176,7 @@ CONFIG_CRYPTO_SERPENT=m
 CONFIG_CRYPTO_TEA=m
 CONFIG_CRYPTO_TWOFISH=m
 CONFIG_CRYPTO_DEFLATE=m
-# CONFIG_CRYPTO_ANSI_CPRNG is not set
 # CONFIG_CRYPTO_HW is not set
-CONFIG_LIBCRC32C=m
+CONFIG_FONTS=y
+CONFIG_FONT_8x8=y
+CONFIG_FONT_8x16=y
diff --git a/arch/parisc/configs/a500_defconfig b/arch/parisc/configs/a500_defconfig
index 1a4f776b49b8..5acb93dcaabf 100644
--- a/arch/parisc/configs/a500_defconfig
+++ b/arch/parisc/configs/a500_defconfig
@@ -1,13 +1,10 @@
-CONFIG_EXPERIMENTAL=y
 # CONFIG_LOCALVERSION_AUTO is not set
 CONFIG_SYSVIPC=y
 CONFIG_POSIX_MQUEUE=y
 CONFIG_IKCONFIG=y
 CONFIG_IKCONFIG_PROC=y
 CONFIG_LOG_BUF_SHIFT=16
-CONFIG_SYSFS_DEPRECATED_V2=y
 CONFIG_BLK_DEV_INITRD=y
-# CONFIG_CC_OPTIMIZE_FOR_SIZE is not set
 CONFIG_EXPERT=y
 CONFIG_KALLSYMS_ALL=y
 CONFIG_SLAB=y
@@ -16,7 +13,6 @@ CONFIG_OPROFILE=m
 CONFIG_MODULES=y
 CONFIG_MODULE_UNLOAD=y
 CONFIG_MODULE_FORCE_UNLOAD=y
-# CONFIG_BLK_DEV_BSG is not set
 CONFIG_PA8X00=y
 CONFIG_64BIT=y
 CONFIG_SMP=y
@@ -43,21 +39,17 @@ CONFIG_IP_PNP_DHCP=y
 CONFIG_IP_PNP_BOOTP=y
 CONFIG_INET_AH=m
 CONFIG_INET_ESP=m
-# CONFIG_INET_LRO is not set
 CONFIG_INET6_AH=m
 CONFIG_INET6_ESP=m
 CONFIG_INET6_IPCOMP=m
 CONFIG_IPV6_TUNNEL=m
 CONFIG_NETFILTER=y
 # CONFIG_NETFILTER_XT_MATCH_DCCP is not set
-CONFIG_IP_NF_QUEUE=m
 CONFIG_IP_NF_IPTABLES=m
 CONFIG_IP_NF_MATCH_ECN=m
 CONFIG_IP_NF_MATCH_TTL=m
 CONFIG_IP_NF_FILTER=m
 CONFIG_IP_NF_TARGET_REJECT=m
-CONFIG_IP_NF_TARGET_LOG=m
-CONFIG_IP_NF_TARGET_ULOG=m
 CONFIG_IP_NF_MANGLE=m
 CONFIG_IP_NF_TARGET_ECN=m
 CONFIG_IP_NF_RAW=m
@@ -70,7 +62,6 @@ CONFIG_IP6_NF_MATCH_OPTS=m
 CONFIG_IP6_NF_MATCH_HL=m
 CONFIG_IP6_NF_MATCH_IPV6HEADER=m
 CONFIG_IP6_NF_MATCH_RT=m
-CONFIG_IP6_NF_TARGET_LOG=m
 CONFIG_IP6_NF_FILTER=m
 CONFIG_IP6_NF_TARGET_REJECT=m
 CONFIG_IP6_NF_MANGLE=m
@@ -94,7 +85,6 @@ CONFIG_BLK_DEV_SD=y
 CONFIG_CHR_DEV_ST=y
 CONFIG_BLK_DEV_SR=y
 CONFIG_CHR_DEV_SG=y
-CONFIG_SCSI_MULTI_LUN=y
 CONFIG_SCSI_ISCSI_ATTRS=m
 CONFIG_SCSI_SYM53C8XX_2=y
 CONFIG_SCSI_QLOGIC_1280=m
@@ -106,43 +96,38 @@ CONFIG_MD_RAID0=y
 CONFIG_MD_RAID1=y
 CONFIG_FUSION=y
 CONFIG_FUSION_SPI=m
-CONFIG_FUSION_FC=m
 CONFIG_FUSION_CTL=m
 CONFIG_NETDEVICES=y
-CONFIG_DUMMY=m
 CONFIG_BONDING=m
+CONFIG_DUMMY=m
 CONFIG_TUN=m
-CONFIG_NET_ETHERNET=y
-CONFIG_NET_VENDOR_3COM=y
+CONFIG_PCMCIA_3C574=m
+CONFIG_PCMCIA_3C589=m
 CONFIG_VORTEX=m
 CONFIG_TYPHOON=m
+CONFIG_ACENIC=m
+CONFIG_ACENIC_OMIT_TIGON_I=y
+CONFIG_PCNET32=m
+CONFIG_TIGON3=m
 CONFIG_NET_TULIP=y
 CONFIG_DE2104X=m
 CONFIG_TULIP=y
 CONFIG_TULIP_MMIO=y
 CONFIG_PCMCIA_XIRCOM=m
 CONFIG_HP100=m
-CONFIG_NET_PCI=y
-CONFIG_PCNET32=m
 CONFIG_E100=m
-CONFIG_ACENIC=m
-CONFIG_ACENIC_OMIT_TIGON_I=y
 CONFIG_E1000=m
-CONFIG_TIGON3=m
-CONFIG_NET_PCMCIA=y
-CONFIG_PCMCIA_3C589=m
-CONFIG_PCMCIA_3C574=m
 CONFIG_PCMCIA_SMC91C92=m
 CONFIG_PCMCIA_XIRC2PS=m
 CONFIG_PPP=m
+CONFIG_PPP_BSDCOMP=m
+CONFIG_PPP_DEFLATE=m
 CONFIG_PPP_ASYNC=m
 CONFIG_PPP_SYNC_TTY=m
-CONFIG_PPP_DEFLATE=m
-CONFIG_PPP_BSDCOMP=m
-# CONFIG_INPUT_MOUSEDEV is not set
 # CONFIG_INPUT_KEYBOARD is not set
 # CONFIG_INPUT_MOUSE is not set
 # CONFIG_SERIO is not set
+# CONFIG_LEGACY_PTYS is not set
 CONFIG_SERIAL_8250=y
 CONFIG_SERIAL_8250_CONSOLE=y
 CONFIG_SERIAL_8250_CS=m
@@ -151,7 +136,6 @@ CONFIG_SERIAL_8250_EXTENDED=y
 CONFIG_SERIAL_8250_MANY_PORTS=y
 CONFIG_SERIAL_8250_SHARE_IRQ=y
 CONFIG_PDC_CONSOLE=y
-# CONFIG_LEGACY_PTYS is not set
 # CONFIG_HW_RANDOM is not set
 CONFIG_RAW_DRIVER=y
 # CONFIG_HWMON is not set
@@ -160,7 +144,6 @@ CONFIG_AGP_PARISC=y
 # CONFIG_STI_CONSOLE is not set
 CONFIG_EXT2_FS=y
 CONFIG_EXT3_FS=y
-# CONFIG_EXT3_FS_XATTR is not set
 CONFIG_JFS_FS=m
 CONFIG_XFS_FS=m
 CONFIG_AUTOFS4_FS=y
@@ -173,13 +156,9 @@ CONFIG_PROC_KCORE=y
 CONFIG_TMPFS=y
 CONFIG_UFS_FS=m
 CONFIG_NFS_FS=m
-CONFIG_NFS_V3=y
-CONFIG_NFS_V4=y
+CONFIG_NFS_V4=m
 CONFIG_NFSD=m
 CONFIG_NFSD_V4=y
-CONFIG_RPCSEC_GSS_SPKM3=m
-CONFIG_SMB_FS=m
-CONFIG_SMB_NLS_DEFAULT=y
 CONFIG_CIFS=m
 CONFIG_NLS_CODEPAGE_437=m
 CONFIG_NLS_CODEPAGE_850=m
@@ -187,17 +166,12 @@ CONFIG_NLS_ASCII=m
 CONFIG_NLS_ISO8859_1=m
 CONFIG_NLS_ISO8859_15=m
 CONFIG_NLS_UTF8=m
-CONFIG_MAGIC_SYSRQ=y
 CONFIG_DEBUG_FS=y
 CONFIG_HEADERS_CHECK=y
-CONFIG_DEBUG_KERNEL=y
+CONFIG_MAGIC_SYSRQ=y
 # CONFIG_DEBUG_BUGVERBOSE is not set
-# CONFIG_RCU_CPU_STALL_DETECTOR is not set
-CONFIG_CRYPTO_NULL=m
 CONFIG_CRYPTO_TEST=m
 CONFIG_CRYPTO_HMAC=y
 CONFIG_CRYPTO_MD5=y
 CONFIG_CRYPTO_BLOWFISH=m
-# CONFIG_CRYPTO_ANSI_CPRNG is not set
 # CONFIG_CRYPTO_HW is not set
-CONFIG_LIBCRC32C=m
diff --git a/arch/parisc/configs/b180_defconfig b/arch/parisc/configs/b180_defconfig
index f1a0c25bef8d..83ffd161aec5 100644
--- a/arch/parisc/configs/b180_defconfig
+++ b/arch/parisc/configs/b180_defconfig
@@ -3,7 +3,6 @@ CONFIG_SYSVIPC=y
 CONFIG_IKCONFIG=y
 CONFIG_IKCONFIG_PROC=y
 CONFIG_LOG_BUF_SHIFT=16
-CONFIG_SYSFS_DEPRECATED_V2=y
 CONFIG_BLK_DEV_INITRD=y
 CONFIG_SLAB=y
 CONFIG_MODULES=y
@@ -25,8 +24,6 @@ CONFIG_INET=y
 CONFIG_IP_MULTICAST=y
 CONFIG_IP_PNP=y
 CONFIG_IP_PNP_BOOTP=y
-# CONFIG_INET_LRO is not set
-CONFIG_IPV6=y
 CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug"
 CONFIG_DEVTMPFS=y
 CONFIG_DEVTMPFS_MOUNT=y
@@ -53,10 +50,9 @@ CONFIG_MD_LINEAR=y
 CONFIG_MD_RAID0=y
 CONFIG_MD_RAID1=y
 CONFIG_NETDEVICES=y
-CONFIG_NET_ETHERNET=y
-CONFIG_LASI_82596=y
 CONFIG_NET_TULIP=y
 CONFIG_TULIP=y
+CONFIG_LASI_82596=y
 CONFIG_PPP=y
 CONFIG_INPUT_EVDEV=y
 # CONFIG_KEYBOARD_HIL_OLD is not set
@@ -71,40 +67,31 @@ CONFIG_SERIAL_8250_SHARE_IRQ=y
 CONFIG_PRINTER=y
 # CONFIG_HW_RANDOM is not set
 # CONFIG_HWMON is not set
-CONFIG_VIDEO_OUTPUT_CONTROL=m
 CONFIG_FB=y
 CONFIG_FRAMEBUFFER_CONSOLE=y
 CONFIG_LOGO=y
 CONFIG_SOUND=y
 CONFIG_SND=y
 CONFIG_SND_SEQUENCER=y
-CONFIG_SND_MIXER_OSS=y
-CONFIG_SND_PCM_OSS=y
-CONFIG_SND_SEQUENCER_OSS=y
 CONFIG_SND_HARMONY=y
 CONFIG_EXT2_FS=y
 CONFIG_EXT3_FS=y
-# CONFIG_EXT3_FS_XATTR is not set
 CONFIG_AUTOFS4_FS=y
 CONFIG_ISO9660_FS=y
 CONFIG_JOLIET=y
 CONFIG_PROC_KCORE=y
 CONFIG_TMPFS=y
 CONFIG_NFS_FS=y
-CONFIG_NFS_V3=y
 CONFIG_ROOT_NFS=y
 CONFIG_NFSD=y
 CONFIG_NFSD_V3=y
-CONFIG_SMB_FS=y
 CONFIG_NLS_CODEPAGE_437=m
 CONFIG_NLS_CODEPAGE_850=m
 CONFIG_NLS_ASCII=m
 CONFIG_NLS_ISO8859_1=m
 CONFIG_NLS_ISO8859_15=m
 CONFIG_NLS_UTF8=m
-CONFIG_MAGIC_SYSRQ=y
 CONFIG_HEADERS_CHECK=y
+CONFIG_MAGIC_SYSRQ=y
 CONFIG_DEBUG_KERNEL=y
-# CONFIG_RCU_CPU_STALL_DETECTOR is not set
 CONFIG_SECURITY=y
-# CONFIG_CRYPTO_ANSI_CPRNG is not set
diff --git a/arch/parisc/configs/c3000_defconfig b/arch/parisc/configs/c3000_defconfig
index 8e8f0e34f817..0764d3971cf6 100644
--- a/arch/parisc/configs/c3000_defconfig
+++ b/arch/parisc/configs/c3000_defconfig
@@ -1,12 +1,9 @@
-CONFIG_EXPERIMENTAL=y
 # CONFIG_LOCALVERSION_AUTO is not set
 CONFIG_SYSVIPC=y
 CONFIG_IKCONFIG=y
 CONFIG_IKCONFIG_PROC=y
 CONFIG_LOG_BUF_SHIFT=16
-CONFIG_SYSFS_DEPRECATED_V2=y
 CONFIG_BLK_DEV_INITRD=y
-# CONFIG_CC_OPTIMIZE_FOR_SIZE is not set
 CONFIG_EXPERT=y
 CONFIG_KALLSYMS_ALL=y
 CONFIG_SLAB=y
@@ -15,7 +12,6 @@ CONFIG_OPROFILE=m
 CONFIG_MODULES=y
 CONFIG_MODULE_UNLOAD=y
 CONFIG_MODULE_FORCE_UNLOAD=y
-# CONFIG_BLK_DEV_BSG is not set
 CONFIG_PA8X00=y
 CONFIG_PREEMPT_VOLUNTARY=y
 # CONFIG_GSC is not set
@@ -31,13 +27,11 @@ CONFIG_INET=y
 CONFIG_IP_MULTICAST=y
 CONFIG_IP_PNP=y
 CONFIG_IP_PNP_BOOTP=y
-# CONFIG_INET_LRO is not set
 # CONFIG_INET_DIAG is not set
 CONFIG_INET6_IPCOMP=m
 CONFIG_IPV6_TUNNEL=m
 CONFIG_NETFILTER=y
 CONFIG_NETFILTER_DEBUG=y
-CONFIG_IP_NF_QUEUE=m
 CONFIG_NET_PKTGEN=m
 CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug"
 CONFIG_DEVTMPFS=y
@@ -50,13 +44,11 @@ CONFIG_BLK_DEV_CRYPTOLOOP=m
 CONFIG_IDE=y
 CONFIG_BLK_DEV_IDECD=y
 CONFIG_BLK_DEV_NS87415=y
-CONFIG_PATA_SIL680=m
 CONFIG_SCSI=y
 CONFIG_BLK_DEV_SD=y
 CONFIG_CHR_DEV_ST=y
 CONFIG_BLK_DEV_SR=y
 CONFIG_CHR_DEV_SG=y
-CONFIG_SCSI_MULTI_LUN=y
 CONFIG_SCSI_ISCSI_ATTRS=m
 CONFIG_SCSI_SYM53C8XX_2=y
 CONFIG_SCSI_SYM53C8XX_DMA_ADDRESSING_MODE=0
@@ -76,28 +68,23 @@ CONFIG_FUSION=y
 CONFIG_FUSION_SPI=m
 CONFIG_FUSION_CTL=m
 CONFIG_NETDEVICES=y
-CONFIG_DUMMY=m
 CONFIG_BONDING=m
+CONFIG_DUMMY=m
 CONFIG_TUN=m
-CONFIG_NET_ETHERNET=y
+CONFIG_ACENIC=m
+CONFIG_TIGON3=m
 CONFIG_NET_TULIP=y
 CONFIG_DE2104X=m
 CONFIG_TULIP=y
 CONFIG_TULIP_MMIO=y
-CONFIG_NET_PCI=y
 CONFIG_E100=m
-CONFIG_ACENIC=m
 CONFIG_E1000=m
-CONFIG_TIGON3=m
 CONFIG_PPP=m
-CONFIG_PPP_ASYNC=m
-CONFIG_PPP_SYNC_TTY=m
-CONFIG_PPP_DEFLATE=m
 CONFIG_PPP_BSDCOMP=m
+CONFIG_PPP_DEFLATE=m
 CONFIG_PPPOE=m
-# CONFIG_INPUT_MOUSEDEV_PSAUX is not set
-CONFIG_INPUT_MOUSEDEV_SCREEN_X=1600
-CONFIG_INPUT_MOUSEDEV_SCREEN_Y=1200
+CONFIG_PPP_ASYNC=m
+CONFIG_PPP_SYNC_TTY=m
 # CONFIG_KEYBOARD_ATKBD is not set
 # CONFIG_MOUSE_PS2 is not set
 CONFIG_SERIO=m
@@ -111,7 +98,6 @@ CONFIG_SERIAL_8250_SHARE_IRQ=y
 # CONFIG_HW_RANDOM is not set
 CONFIG_RAW_DRIVER=y
 # CONFIG_HWMON is not set
-CONFIG_VIDEO_OUTPUT_CONTROL=m
 CONFIG_FB=y
 CONFIG_FRAMEBUFFER_CONSOLE=y
 CONFIG_LOGO=y
@@ -121,9 +107,6 @@ CONFIG_LOGO=y
 CONFIG_SOUND=y
 CONFIG_SND=y
 CONFIG_SND_SEQUENCER=y
-CONFIG_SND_MIXER_OSS=y
-CONFIG_SND_PCM_OSS=y
-CONFIG_SND_SEQUENCER_OSS=y
 CONFIG_SND_AD1889=y
 CONFIG_USB_HIDDEV=y
 CONFIG_USB=y
@@ -139,7 +122,6 @@ CONFIG_USB_MICROTEK=m
 CONFIG_USB_LEGOTOWER=m
 CONFIG_EXT2_FS=y
 CONFIG_EXT3_FS=y
-# CONFIG_EXT3_FS_XATTR is not set
 CONFIG_XFS_FS=m
 CONFIG_AUTOFS4_FS=y
 CONFIG_ISO9660_FS=y
@@ -149,7 +131,6 @@ CONFIG_VFAT_FS=m
 CONFIG_PROC_KCORE=y
 CONFIG_TMPFS=y
 CONFIG_NFS_FS=y
-CONFIG_NFS_V3=y
 CONFIG_ROOT_NFS=y
 CONFIG_NFSD=y
 CONFIG_NFSD_V3=y
@@ -159,18 +140,13 @@ CONFIG_NLS_ASCII=m
 CONFIG_NLS_ISO8859_1=m
 CONFIG_NLS_ISO8859_15=m
 CONFIG_NLS_UTF8=m
-CONFIG_MAGIC_SYSRQ=y
 CONFIG_DEBUG_FS=y
 CONFIG_HEADERS_CHECK=y
-CONFIG_DEBUG_KERNEL=y
+CONFIG_MAGIC_SYSRQ=y
 CONFIG_DEBUG_MUTEXES=y
 # CONFIG_DEBUG_BUGVERBOSE is not set
-# CONFIG_RCU_CPU_STALL_DETECTOR is not set
-CONFIG_CRYPTO_NULL=m
 CONFIG_CRYPTO_TEST=m
 CONFIG_CRYPTO_MD5=m
 CONFIG_CRYPTO_BLOWFISH=m
 CONFIG_CRYPTO_DES=m
-# CONFIG_CRYPTO_ANSI_CPRNG is not set
 # CONFIG_CRYPTO_HW is not set
-CONFIG_LIBCRC32C=m
diff --git a/arch/parisc/configs/c8000_defconfig b/arch/parisc/configs/c8000_defconfig
index f6a4c016304b..088ab948a5ca 100644
--- a/arch/parisc/configs/c8000_defconfig
+++ b/arch/parisc/configs/c8000_defconfig
@@ -1,16 +1,13 @@
 # CONFIG_LOCALVERSION_AUTO is not set
 CONFIG_SYSVIPC=y
 CONFIG_POSIX_MQUEUE=y
-CONFIG_FHANDLE=y
+# CONFIG_CROSS_MEMORY_ATTACH is not set
 CONFIG_BSD_PROCESS_ACCT=y
 CONFIG_BSD_PROCESS_ACCT_V3=y
 CONFIG_IKCONFIG=y
 CONFIG_IKCONFIG_PROC=y
 CONFIG_RELAY=y
 CONFIG_BLK_DEV_INITRD=y
-CONFIG_RD_BZIP2=y
-CONFIG_RD_LZMA=y
-CONFIG_RD_LZO=y
 CONFIG_EXPERT=y
 CONFIG_SYSCTL_SYSCALL=y
 CONFIG_SLAB=y
@@ -23,7 +20,6 @@ CONFIG_PA8X00=y
 CONFIG_64BIT=y
 CONFIG_SMP=y
 CONFIG_PREEMPT=y
-# CONFIG_CROSS_MEMORY_ATTACH is not set
 CONFIG_IOMMU_CCIO=y
 CONFIG_PCI=y
 CONFIG_PCI_LBA=y
@@ -146,7 +142,6 @@ CONFIG_FB_FOREIGN_ENDIAN=y
 CONFIG_FB_MODE_HELPERS=y
 CONFIG_FB_TILEBLITTING=y
 # CONFIG_FB_STI is not set
-CONFIG_BACKLIGHT_LCD_SUPPORT=y
 # CONFIG_LCD_CLASS_DEVICE is not set
 # CONFIG_BACKLIGHT_GENERIC is not set
 CONFIG_FRAMEBUFFER_CONSOLE=y
@@ -157,12 +152,9 @@ CONFIG_LOGO=y
 # CONFIG_LOGO_LINUX_CLUT224 is not set
 CONFIG_SOUND=m
 CONFIG_SND=m
+CONFIG_SND_VERBOSE_PRINTK=y
 CONFIG_SND_SEQUENCER=m
 CONFIG_SND_SEQ_DUMMY=m
-CONFIG_SND_MIXER_OSS=m
-CONFIG_SND_PCM_OSS=m
-CONFIG_SND_SEQUENCER_OSS=y
-CONFIG_SND_VERBOSE_PRINTK=y
 CONFIG_SND_AD1889=m
 # CONFIG_SND_USB is not set
 # CONFIG_SND_GSC is not set
@@ -174,8 +166,6 @@ CONFIG_EXT2_FS_XATTR=y
 CONFIG_EXT2_FS_POSIX_ACL=y
 CONFIG_EXT2_FS_SECURITY=y
 CONFIG_EXT3_FS=y
-# CONFIG_EXT3_DEFAULTS_TO_ORDERED is not set
-CONFIG_EXT4_FS=m
 CONFIG_REISERFS_FS=m
 CONFIG_REISERFS_PROC_INFO=y
 CONFIG_XFS_FS=m
@@ -238,11 +228,8 @@ CONFIG_DEBUG_SLAB=y
 CONFIG_DEBUG_SLAB_LEAK=y
 CONFIG_DEBUG_MEMORY_INIT=y
 CONFIG_DEBUG_STACKOVERFLOW=y
-CONFIG_LOCKUP_DETECTOR=y
-CONFIG_BOOTPARAM_SOFTLOCKUP_PANIC=y
 CONFIG_PANIC_ON_OOPS=y
 CONFIG_DEBUG_RT_MUTEXES=y
-CONFIG_PROVE_RCU_DELAY=y
 CONFIG_DEBUG_BLOCK_EXT_DEVT=y
 CONFIG_LATENCYTOP=y
 CONFIG_KEYS=y
diff --git a/arch/parisc/configs/default_defconfig b/arch/parisc/configs/default_defconfig
index 310b6657e4ac..52c9050a7c5c 100644
--- a/arch/parisc/configs/default_defconfig
+++ b/arch/parisc/configs/default_defconfig
@@ -1,11 +1,9 @@
-CONFIG_EXPERIMENTAL=y
 # CONFIG_LOCALVERSION_AUTO is not set
 CONFIG_SYSVIPC=y
 CONFIG_POSIX_MQUEUE=y
 CONFIG_IKCONFIG=y
 CONFIG_IKCONFIG_PROC=y
 CONFIG_LOG_BUF_SHIFT=16
-CONFIG_SYSFS_DEPRECATED_V2=y
 CONFIG_BLK_DEV_INITRD=y
 CONFIG_KALLSYMS_ALL=y
 CONFIG_SLAB=y
@@ -41,9 +39,7 @@ CONFIG_IP_PNP_DHCP=y
 CONFIG_IP_PNP_BOOTP=y
 CONFIG_INET_AH=m
 CONFIG_INET_ESP=m
-# CONFIG_INET_LRO is not set
 CONFIG_INET_DIAG=m
-CONFIG_IPV6=y
 CONFIG_INET6_AH=y
 CONFIG_INET6_ESP=y
 CONFIG_INET6_IPCOMP=y
@@ -82,26 +78,23 @@ CONFIG_MD_RAID1=y
 CONFIG_MD_RAID10=y
 CONFIG_BLK_DEV_DM=y
 CONFIG_NETDEVICES=y
-CONFIG_DUMMY=m
 CONFIG_BONDING=m
+CONFIG_DUMMY=m
 CONFIG_TUN=m
-CONFIG_NET_ETHERNET=y
-CONFIG_MII=m
-CONFIG_LASI_82596=y
-CONFIG_NET_TULIP=y
-CONFIG_TULIP=y
-CONFIG_NET_PCI=y
 CONFIG_ACENIC=y
 CONFIG_TIGON3=y
-CONFIG_NET_PCMCIA=y
+CONFIG_NET_TULIP=y
+CONFIG_TULIP=y
+CONFIG_LASI_82596=y
 CONFIG_PPP=m
-CONFIG_PPP_ASYNC=m
-CONFIG_PPP_SYNC_TTY=m
-CONFIG_PPP_DEFLATE=m
 CONFIG_PPP_BSDCOMP=m
+CONFIG_PPP_DEFLATE=m
 CONFIG_PPPOE=m
+CONFIG_PPP_ASYNC=m
+CONFIG_PPP_SYNC_TTY=m
 # CONFIG_KEYBOARD_HIL_OLD is not set
 CONFIG_MOUSE_SERIAL=y
+CONFIG_LEGACY_PTY_COUNT=64
 CONFIG_SERIAL_8250=y
 CONFIG_SERIAL_8250_CONSOLE=y
 CONFIG_SERIAL_8250_CS=y
@@ -109,31 +102,24 @@ CONFIG_SERIAL_8250_NR_UARTS=17
 CONFIG_SERIAL_8250_EXTENDED=y
 CONFIG_SERIAL_8250_MANY_PORTS=y
 CONFIG_SERIAL_8250_SHARE_IRQ=y
-CONFIG_LEGACY_PTY_COUNT=64
 CONFIG_PRINTER=m
 CONFIG_PPDEV=m
 # CONFIG_HW_RANDOM is not set
 # CONFIG_HWMON is not set
-CONFIG_VIDEO_OUTPUT_CONTROL=m
 CONFIG_FB=y
 CONFIG_FB_MODE_HELPERS=y
 CONFIG_FB_TILEBLITTING=y
 CONFIG_DUMMY_CONSOLE_COLUMNS=128
 CONFIG_DUMMY_CONSOLE_ROWS=48
 CONFIG_FRAMEBUFFER_CONSOLE=y
-CONFIG_FONTS=y
-CONFIG_FONT_8x16=y
 CONFIG_LOGO=y
 # CONFIG_LOGO_LINUX_MONO is not set
 # CONFIG_LOGO_LINUX_VGA16 is not set
 # CONFIG_LOGO_LINUX_CLUT224 is not set
 CONFIG_SOUND=y
 CONFIG_SND=y
-CONFIG_SND_SEQUENCER=y
-CONFIG_SND_MIXER_OSS=y
-CONFIG_SND_PCM_OSS=y
-CONFIG_SND_SEQUENCER_OSS=y
 CONFIG_SND_DYNAMIC_MINORS=y
+CONFIG_SND_SEQUENCER=y
 CONFIG_SND_AD1889=y
 CONFIG_SND_HARMONY=y
 CONFIG_HID_GYRATION=y
@@ -141,7 +127,6 @@ CONFIG_HID_NTRIG=y
 CONFIG_HID_PANTHERLORD=y
 CONFIG_HID_PETALYNX=y
 CONFIG_HID_SAMSUNG=y
-CONFIG_HID_SONY=y
 CONFIG_HID_SUNPLUS=y
 CONFIG_HID_TOPSEED=y
 CONFIG_USB=y
@@ -150,21 +135,15 @@ CONFIG_USB_OHCI_HCD=y
 CONFIG_USB_UHCI_HCD=y
 CONFIG_EXT2_FS=y
 CONFIG_EXT3_FS=y
-# CONFIG_EXT3_FS_XATTR is not set
-CONFIG_AUTOFS_FS=y
 CONFIG_ISO9660_FS=y
 CONFIG_JOLIET=y
 CONFIG_VFAT_FS=y
 CONFIG_PROC_KCORE=y
 CONFIG_TMPFS=y
 CONFIG_NFS_FS=y
-CONFIG_NFS_V3=y
 CONFIG_ROOT_NFS=y
 CONFIG_NFSD=y
 CONFIG_NFSD_V4=y
-CONFIG_RPCSEC_GSS_SPKM3=m
-CONFIG_SMB_FS=m
-CONFIG_SMB_NLS_DEFAULT=y
 CONFIG_CIFS=m
 CONFIG_NLS_CODEPAGE_437=y
 CONFIG_NLS_CODEPAGE_737=m
@@ -204,30 +183,24 @@ CONFIG_NLS_ISO8859_15=m
 CONFIG_NLS_KOI8_R=m
 CONFIG_NLS_KOI8_U=m
 CONFIG_NLS_UTF8=y
-CONFIG_MAGIC_SYSRQ=y
 CONFIG_DEBUG_FS=y
 CONFIG_HEADERS_CHECK=y
+CONFIG_MAGIC_SYSRQ=y
 CONFIG_DEBUG_KERNEL=y
 CONFIG_DEBUG_MUTEXES=y
-# CONFIG_RCU_CPU_STALL_DETECTOR is not set
 CONFIG_KEYS=y
-CONFIG_CRYPTO_NULL=m
 CONFIG_CRYPTO_TEST=m
-CONFIG_CRYPTO_MD4=m
 CONFIG_CRYPTO_MICHAEL_MIC=m
-CONFIG_CRYPTO_SHA256=m
 CONFIG_CRYPTO_SHA512=m
 CONFIG_CRYPTO_TGR192=m
 CONFIG_CRYPTO_WP512=m
-CONFIG_CRYPTO_AES=m
 CONFIG_CRYPTO_ANUBIS=m
-CONFIG_CRYPTO_ARC4=m
 CONFIG_CRYPTO_BLOWFISH=m
 CONFIG_CRYPTO_CAST6=m
 CONFIG_CRYPTO_KHAZAD=m
 CONFIG_CRYPTO_SERPENT=m
 CONFIG_CRYPTO_TEA=m
 CONFIG_CRYPTO_TWOFISH=m
-# CONFIG_CRYPTO_ANSI_CPRNG is not set
 # CONFIG_CRYPTO_HW is not set
 CONFIG_LIBCRC32C=m
+CONFIG_FONTS=y
diff --git a/arch/parisc/configs/generic-32bit_defconfig b/arch/parisc/configs/generic-32bit_defconfig
index 8688ba7f5966..37ae4b57c001 100644
--- a/arch/parisc/configs/generic-32bit_defconfig
+++ b/arch/parisc/configs/generic-32bit_defconfig
@@ -2,15 +2,11 @@ CONFIG_LOCALVERSION="-32bit"
 # CONFIG_LOCALVERSION_AUTO is not set
 CONFIG_SYSVIPC=y
 CONFIG_POSIX_MQUEUE=y
-CONFIG_FHANDLE=y
 CONFIG_BSD_PROCESS_ACCT=y
 CONFIG_IKCONFIG=y
 CONFIG_IKCONFIG_PROC=y
 CONFIG_LOG_BUF_SHIFT=16
 CONFIG_BLK_DEV_INITRD=y
-CONFIG_RD_BZIP2=y
-CONFIG_RD_LZMA=y
-CONFIG_RD_LZO=y
 CONFIG_EXPERT=y
 CONFIG_SYSCTL_SYSCALL=y
 CONFIG_PERF_EVENTS=y
@@ -49,7 +45,6 @@ CONFIG_INET_ESP=m
 # CONFIG_INET_XFRM_MODE_TRANSPORT is not set
 # CONFIG_INET_XFRM_MODE_TUNNEL is not set
 # CONFIG_INET_XFRM_MODE_BEET is not set
-# CONFIG_INET_LRO is not set
 CONFIG_INET_DIAG=m
 CONFIG_LLC2=m
 # CONFIG_WIRELESS is not set
@@ -149,10 +144,8 @@ CONFIG_PRINTER=m
 CONFIG_PPDEV=m
 # CONFIG_HW_RANDOM is not set
 CONFIG_I2C=y
-CONFIG_POWER_SUPPLY=y
 # CONFIG_HWMON is not set
 CONFIG_AGP=y
-CONFIG_VIDEO_OUTPUT_CONTROL=y
 CONFIG_FB=y
 CONFIG_FB_FOREIGN_ENDIAN=y
 CONFIG_FB_MODE_HELPERS=y
@@ -169,11 +162,8 @@ CONFIG_LOGO=y
 # CONFIG_LOGO_LINUX_CLUT224 is not set
 CONFIG_SOUND=m
 CONFIG_SND=m
-CONFIG_SND_SEQUENCER=m
-CONFIG_SND_MIXER_OSS=m
-CONFIG_SND_PCM_OSS=m
-CONFIG_SND_SEQUENCER_OSS=y
 CONFIG_SND_DYNAMIC_MINORS=y
+CONFIG_SND_SEQUENCER=m
 CONFIG_SND_AD1889=m
 CONFIG_SND_HARMONY=m
 CONFIG_HIDRAW=y
@@ -223,12 +213,7 @@ CONFIG_EXT2_FS=y
 CONFIG_EXT2_FS_XATTR=y
 CONFIG_EXT2_FS_SECURITY=y
 CONFIG_EXT3_FS=y
-# CONFIG_EXT3_DEFAULTS_TO_ORDERED is not set
 CONFIG_EXT3_FS_SECURITY=y
-CONFIG_EXT4_FS=y
-CONFIG_XFS_FS=m
-CONFIG_XFS_QUOTA=y
-CONFIG_XFS_RT=y
 CONFIG_QUOTA=y
 CONFIG_QUOTA_NETLINK_INTERFACE=y
 CONFIG_QFMT_V2=y
@@ -293,15 +278,12 @@ CONFIG_DEBUG_MEMORY_INIT=y
 CONFIG_DEBUG_STACKOVERFLOW=y
 CONFIG_DEBUG_SHIRQ=y
 CONFIG_DETECT_HUNG_TASK=y
-CONFIG_TIMER_STATS=y
 CONFIG_DEBUG_RT_MUTEXES=y
 CONFIG_DEBUG_SPINLOCK=y
 CONFIG_DEBUG_MUTEXES=y
-CONFIG_RCU_CPU_STALL_INFO=y
 CONFIG_LATENCYTOP=y
 CONFIG_LKDTM=m
 CONFIG_KEYS=y
-CONFIG_CRYPTO_NULL=m
 CONFIG_CRYPTO_TEST=m
 CONFIG_CRYPTO_HMAC=y
 CONFIG_CRYPTO_MD5=y
@@ -320,7 +302,6 @@ CONFIG_CRYPTO_SERPENT=m
 CONFIG_CRYPTO_TEA=m
 CONFIG_CRYPTO_TWOFISH=m
 CONFIG_CRYPTO_DEFLATE=y
-# CONFIG_CRYPTO_ANSI_CPRNG is not set
 CONFIG_CRC_CCITT=m
 CONFIG_CRC_T10DIF=y
 CONFIG_FONTS=y
diff --git a/arch/parisc/configs/generic-64bit_defconfig b/arch/parisc/configs/generic-64bit_defconfig
index c564e6e1fa23..d39e7f821aba 100644
--- a/arch/parisc/configs/generic-64bit_defconfig
+++ b/arch/parisc/configs/generic-64bit_defconfig
@@ -8,10 +8,11 @@ CONFIG_TASKSTATS=y
 CONFIG_TASK_DELAY_ACCT=y
 CONFIG_TASK_XACCT=y
 CONFIG_TASK_IO_ACCOUNTING=y
-# CONFIG_UTS_NS is not set
-# CONFIG_IPC_NS is not set
-# CONFIG_PID_NS is not set
-# CONFIG_NET_NS is not set
+CONFIG_CGROUPS=y
+CONFIG_MEMCG=y
+CONFIG_MEMCG_SWAP=y
+CONFIG_CGROUP_PIDS=y
+CONFIG_CPUSETS=y
 CONFIG_RELAY=y
 CONFIG_BLK_DEV_INITRD=y
 CONFIG_CC_OPTIMIZE_FOR_SIZE=y
@@ -52,7 +53,6 @@ CONFIG_INET_ESP=m
 CONFIG_INET_XFRM_MODE_TRANSPORT=m
 CONFIG_INET_XFRM_MODE_TUNNEL=m
 CONFIG_INET_XFRM_MODE_BEET=m
-CONFIG_INET_LRO=m
 CONFIG_INET_DIAG=m
 CONFIG_NETFILTER=y
 # CONFIG_NETFILTER_ADVANCED is not set
@@ -84,7 +84,6 @@ CONFIG_PATA_SIL680=y
 CONFIG_ATA_GENERIC=y
 CONFIG_MD=y
 CONFIG_MD_LINEAR=m
-CONFIG_MD_RAID0=m
 CONFIG_BLK_DEV_DM=m
 CONFIG_DM_RAID=m
 CONFIG_DM_UEVENT=y
@@ -138,21 +137,21 @@ CONFIG_QLGE=m
 # CONFIG_NET_VENDOR_TI is not set
 # CONFIG_NET_VENDOR_VIA is not set
 # CONFIG_NET_VENDOR_WIZNET is not set
+CONFIG_MDIO_BITBANG=m
 CONFIG_PHYLIB=y
-CONFIG_MARVELL_PHY=m
-CONFIG_DAVICOM_PHY=m
-CONFIG_QSEMI_PHY=m
-CONFIG_LXT_PHY=m
-CONFIG_CICADA_PHY=m
-CONFIG_VITESSE_PHY=m
-CONFIG_SMSC_PHY=m
 CONFIG_BROADCOM_PHY=m
+CONFIG_CICADA_PHY=m
+CONFIG_DAVICOM_PHY=m
 CONFIG_ICPLUS_PHY=m
-CONFIG_REALTEK_PHY=m
+CONFIG_LSI_ET1011C_PHY=m
+CONFIG_LXT_PHY=m
+CONFIG_MARVELL_PHY=m
 CONFIG_NATIONAL_PHY=m
+CONFIG_QSEMI_PHY=m
+CONFIG_REALTEK_PHY=m
+CONFIG_SMSC_PHY=m
 CONFIG_STE10XP=m
-CONFIG_LSI_ET1011C_PHY=m
-CONFIG_MDIO_BITBANG=m
+CONFIG_VITESSE_PHY=m
 CONFIG_SLIP=m
 CONFIG_SLIP_COMPRESSED=y
 CONFIG_SLIP_SMART=y
@@ -166,10 +165,8 @@ CONFIG_INPUT_MISC=y
 CONFIG_SERIO_SERPORT=m
 # CONFIG_HP_SDC is not set
 CONFIG_SERIO_RAW=m
-CONFIG_DEVPTS_MULTIPLE_INSTANCES=y
 # CONFIG_LEGACY_PTYS is not set
 CONFIG_NOZOMI=m
-# CONFIG_DEVKMEM is not set
 CONFIG_SERIAL_8250=y
 # CONFIG_SERIAL_8250_DEPRECATED_OPTIONS is not set
 CONFIG_SERIAL_8250_CONSOLE=y
@@ -207,10 +204,8 @@ CONFIG_AGP=y
 CONFIG_AGP_PARISC=y
 CONFIG_DRM=y
 CONFIG_DRM_RADEON=y
-CONFIG_DRM_RADEON_UMS=y
 CONFIG_FIRMWARE_EDID=y
 CONFIG_FB_MODE_HELPERS=y
-CONFIG_BACKLIGHT_LCD_SUPPORT=y
 # CONFIG_BACKLIGHT_GENERIC is not set
 CONFIG_FRAMEBUFFER_CONSOLE_ROTATION=y
 CONFIG_LOGO=y
@@ -246,8 +241,6 @@ CONFIG_EXT2_FS_XATTR=y
 CONFIG_EXT2_FS_SECURITY=y
 CONFIG_EXT3_FS=y
 CONFIG_EXT3_FS_SECURITY=y
-CONFIG_EXT4_FS=y
-CONFIG_EXT4_FS_SECURITY=y
 CONFIG_XFS_FS=m
 CONFIG_BTRFS_FS=m
 CONFIG_QUOTA=y
@@ -286,27 +279,16 @@ CONFIG_DEBUG_FS=y
 CONFIG_MAGIC_SYSRQ=y
 CONFIG_DEBUG_KERNEL=y
 CONFIG_DEBUG_STACKOVERFLOW=y
-CONFIG_LOCKUP_DETECTOR=y
-CONFIG_BOOTPARAM_SOFTLOCKUP_PANIC=y
-CONFIG_BOOTPARAM_HUNG_TASK_PANIC=y
 # CONFIG_SCHED_DEBUG is not set
-CONFIG_TIMER_STATS=y
 CONFIG_CRYPTO_MANAGER=y
 CONFIG_CRYPTO_ECB=m
 CONFIG_CRYPTO_PCBC=m
 CONFIG_CRYPTO_MD4=m
 CONFIG_CRYPTO_MD5=y
 CONFIG_CRYPTO_MICHAEL_MIC=m
-CONFIG_CRYPTO_SHA256=m
 CONFIG_CRYPTO_ARC4=m
 CONFIG_CRYPTO_FCRYPT=m
 CONFIG_CRYPTO_DEFLATE=m
 # CONFIG_CRYPTO_HW is not set
 CONFIG_CRC_CCITT=m
 CONFIG_LIBCRC32C=y
-CONFIG_XZ_DEC_X86=y
-CONFIG_XZ_DEC_POWERPC=y
-CONFIG_XZ_DEC_IA64=y
-CONFIG_XZ_DEC_ARM=y
-CONFIG_XZ_DEC_ARMTHUMB=y
-CONFIG_XZ_DEC_SPARC=y
diff --git a/arch/parisc/include/asm/Kbuild b/arch/parisc/include/asm/Kbuild
index a9909c2d04c5..a41139575ab4 100644
--- a/arch/parisc/include/asm/Kbuild
+++ b/arch/parisc/include/asm/Kbuild
@@ -1,5 +1,3 @@
-
-generic-y += auxvec.h
 generic-y += barrier.h
 generic-y += clkdev.h
 generic-y += current.h
@@ -11,14 +9,12 @@ generic-y += hw_irq.h
 generic-y += irq_regs.h
 generic-y += irq_work.h
 generic-y += kdebug.h
-generic-y += kvm_para.h
+generic-y += kprobes.h
 generic-y += local.h
 generic-y += local64.h
 generic-y += mcs_spinlock.h
 generic-y += mm-arch-hooks.h
-generic-y += param.h
 generic-y += percpu.h
-generic-y += poll.h
 generic-y += preempt.h
 generic-y += seccomp.h
 generic-y += segment.h
@@ -28,4 +24,3 @@ generic-y += user.h
 generic-y += vga.h
 generic-y += word-at-a-time.h
 generic-y += xor.h
-generic-y += kprobes.h
diff --git a/arch/parisc/include/asm/bug.h b/arch/parisc/include/asm/bug.h
index d2742273a685..07ea467f22fc 100644
--- a/arch/parisc/include/asm/bug.h
+++ b/arch/parisc/include/asm/bug.h
@@ -27,7 +27,7 @@
 	do {								\
 		asm volatile("\n"					\
 			     "1:\t" PARISC_BUG_BREAK_ASM "\n"		\
-			     "\t.pushsection __bug_table,\"a\"\n"	\
+			     "\t.pushsection __bug_table,\"aw\"\n"	\
 			     "2:\t" ASM_WORD_INSN "1b, %c0\n"		\
 			     "\t.short %c1, %c2\n"			\
 			     "\t.org 2b+%c3\n"				\
@@ -50,7 +50,7 @@
 	do {								\
 		asm volatile("\n"					\
 			     "1:\t" PARISC_BUG_BREAK_ASM "\n"		\
-			     "\t.pushsection __bug_table,\"a\"\n"	\
+			     "\t.pushsection __bug_table,\"aw\"\n"	\
 			     "2:\t" ASM_WORD_INSN "1b, %c0\n"		\
 			     "\t.short %c1, %c2\n"			\
 			     "\t.org 2b+%c3\n"				\
@@ -64,7 +64,7 @@
 	do {								\
 		asm volatile("\n"					\
 			     "1:\t" PARISC_BUG_BREAK_ASM "\n"		\
-			     "\t.pushsection __bug_table,\"a\"\n"	\
+			     "\t.pushsection __bug_table,\"aw\"\n"	\
 			     "2:\t" ASM_WORD_INSN "1b\n"		\
 			     "\t.short %c0\n"				\
 			     "\t.org 2b+%c1\n"				\
diff --git a/arch/parisc/include/asm/pdcpat.h b/arch/parisc/include/asm/pdcpat.h
index 32e105fb8adb..e3c0586260d8 100644
--- a/arch/parisc/include/asm/pdcpat.h
+++ b/arch/parisc/include/asm/pdcpat.h
@@ -150,7 +150,7 @@
 #define PDC_PAT_MEM_SETGM		9L /* Set Good Memory value        */
 #define PDC_PAT_MEM_ADD_PAGE		10L /* ADDs a page to the cell      */
 #define PDC_PAT_MEM_ADDRESS		11L /* Get Physical Location From   */
-                                    		 /* Memory Address               */
+					    /* Memory Address               */
 #define PDC_PAT_MEM_GET_TXT_SIZE   	12L /* Get Formatted Text Size   */
 #define PDC_PAT_MEM_GET_PD_TXT     	13L /* Get PD Formatted Text     */
 #define PDC_PAT_MEM_GET_CELL_TXT   	14L /* Get Cell Formatted Text   */
@@ -228,6 +228,17 @@ struct pdc_pat_mem_read_pd_retinfo { /* PDC_PAT_MEM/PDC_PAT_MEM_PD_READ */
 	unsigned long pdt_entries;
 };
 
+struct pdc_pat_mem_phys_mem_location { /* PDC_PAT_MEM/PDC_PAT_MEM_ADDRESS */
+	u64 cabinet:8;
+	u64 ign1:8;
+	u64 ign2:8;
+	u64 cell_slot:8;
+	u64 ign3:8;
+	u64 dimm_slot:8; /* DIMM slot, e.g. 0x1A, 0x2B, show user hex value! */
+	u64 ign4:8;
+	u64 source:4; /* for mem: always 0x07 */
+	u64 source_detail:4; /* for mem: always 0x04 (SIMM or DIMM) */
+};
 
 struct pdc_pat_pd_addr_map_entry {
 	unsigned char entry_type;       /* 1 = Memory Descriptor Entry Type */
@@ -319,6 +330,9 @@ extern int pdc_pat_mem_read_cell_pdt(struct pdc_pat_mem_read_pd_retinfo *pret,
 extern int pdc_pat_mem_read_pd_pdt(struct pdc_pat_mem_read_pd_retinfo *pret,
 		unsigned long *pdt_entries_ptr, unsigned long count,
 		unsigned long offset);
+extern int pdc_pat_mem_get_dimm_phys_location(
+                struct pdc_pat_mem_phys_mem_location *pret,
+                unsigned long phys_addr);
 
 #endif /* __ASSEMBLY__ */
 
diff --git a/arch/parisc/include/asm/thread_info.h b/arch/parisc/include/asm/thread_info.h
index 88fe0aad4390..bc208136bbb2 100644
--- a/arch/parisc/include/asm/thread_info.h
+++ b/arch/parisc/include/asm/thread_info.h
@@ -34,7 +34,7 @@ struct thread_info {
 
 /* thread information allocation */
 
-#define THREAD_SIZE_ORDER	2 /* PA-RISC requires at least 16k stack */
+#define THREAD_SIZE_ORDER	3 /* PA-RISC requires at least 32k stack */
 /* Be sure to hunt all references to this down when you change the size of
  * the kernel stack */
 #define THREAD_SIZE             (PAGE_SIZE << THREAD_SIZE_ORDER)
diff --git a/arch/parisc/include/asm/uaccess.h b/arch/parisc/include/asm/uaccess.h
index 1fd962a07f52..cab33a0d0e82 100644
--- a/arch/parisc/include/asm/uaccess.h
+++ b/arch/parisc/include/asm/uaccess.h
@@ -6,7 +6,6 @@
  */
 #include <asm/page.h>
 #include <asm/cache.h>
-#include <asm-generic/uaccess-unaligned.h>
 
 #include <linux/bug.h>
 #include <linux/string.h>
diff --git a/arch/parisc/include/uapi/asm/Kbuild b/arch/parisc/include/uapi/asm/Kbuild
index 3971c60a7e7f..196d2a4efb31 100644
--- a/arch/parisc/include/uapi/asm/Kbuild
+++ b/arch/parisc/include/uapi/asm/Kbuild
@@ -1,4 +1,8 @@
 # UAPI Header export list
 include include/uapi/asm-generic/Kbuild.asm
 
+generic-y += auxvec.h
+generic-y += kvm_para.h
+generic-y += param.h
+generic-y += poll.h
 generic-y += resource.h
diff --git a/arch/parisc/include/uapi/asm/ioctls.h b/arch/parisc/include/uapi/asm/ioctls.h
index 674c68a5bbd0..d0e3321403be 100644
--- a/arch/parisc/include/uapi/asm/ioctls.h
+++ b/arch/parisc/include/uapi/asm/ioctls.h
@@ -60,7 +60,7 @@
 #define TIOCGPKT	_IOR('T', 0x38, int) /* Get packet mode state */
 #define TIOCGPTLCK	_IOR('T', 0x39, int) /* Get Pty lock state */
 #define TIOCGEXCL	_IOR('T', 0x40, int) /* Get exclusive mode state */
-#define TIOCGPTPEER	_IOR('T', 0x41, int) /* Safely open the slave */
+#define TIOCGPTPEER	_IO('T', 0x41) /* Safely open the slave */
 
 #define FIONCLEX	0x5450  /* these numbers need to be adjusted. */
 #define FIOCLEX		0x5451
diff --git a/arch/parisc/kernel/cache.c b/arch/parisc/kernel/cache.c
index c32a09095216..19c0c141bc3f 100644
--- a/arch/parisc/kernel/cache.c
+++ b/arch/parisc/kernel/cache.c
@@ -453,8 +453,8 @@ void copy_user_page(void *vto, void *vfrom, unsigned long vaddr,
 	  before it can be accessed through the kernel mapping. */
 	preempt_disable();
 	flush_dcache_page_asm(__pa(vfrom), vaddr);
-	preempt_enable();
 	copy_page_asm(vto, vfrom);
+	preempt_enable();
 }
 EXPORT_SYMBOL(copy_user_page);
 
@@ -539,6 +539,10 @@ void flush_cache_mm(struct mm_struct *mm)
 	struct vm_area_struct *vma;
 	pgd_t *pgd;
 
+	/* Flush the TLB to avoid speculation if coherency is required. */
+	if (parisc_requires_coherency())
+		flush_tlb_all();
+
 	/* Flushing the whole cache on each cpu takes forever on
 	   rp3440, etc.  So, avoid it if the mm isn't too big.  */
 	if (mm_total_size(mm) >= parisc_cache_flush_threshold) {
@@ -577,33 +581,21 @@ void flush_cache_mm(struct mm_struct *mm)
 void flush_cache_range(struct vm_area_struct *vma,
 		unsigned long start, unsigned long end)
 {
-	unsigned long addr;
-	pgd_t *pgd;
-
 	BUG_ON(!vma->vm_mm->context);
 
-	if ((end - start) >= parisc_cache_flush_threshold) {
-		flush_cache_all();
-		return;
-	}
+	/* Flush the TLB to avoid speculation if coherency is required. */
+	if (parisc_requires_coherency())
+		flush_tlb_range(vma, start, end);
 
-	if (vma->vm_mm->context == mfsp(3)) {
-		flush_user_dcache_range_asm(start, end);
-		if (vma->vm_flags & VM_EXEC)
-			flush_user_icache_range_asm(start, end);
+	if ((end - start) >= parisc_cache_flush_threshold
+	    || vma->vm_mm->context != mfsp(3)) {
+		flush_cache_all();
 		return;
 	}
 
-	pgd = vma->vm_mm->pgd;
-	for (addr = start & PAGE_MASK; addr < end; addr += PAGE_SIZE) {
-		unsigned long pfn;
-		pte_t *ptep = get_ptep(pgd, addr);
-		if (!ptep)
-			continue;
-		pfn = pte_pfn(*ptep);
-		if (pfn_valid(pfn))
-			__flush_cache_page(vma, addr, PFN_PHYS(pfn));
-	}
+	flush_user_dcache_range_asm(start, end);
+	if (vma->vm_flags & VM_EXEC)
+		flush_user_icache_range_asm(start, end);
 }
 
 void
@@ -612,7 +604,8 @@ flush_cache_page(struct vm_area_struct *vma, unsigned long vmaddr, unsigned long
 	BUG_ON(!vma->vm_mm->context);
 
 	if (pfn_valid(pfn)) {
-		flush_tlb_page(vma, vmaddr);
+		if (parisc_requires_coherency())
+			flush_tlb_page(vma, vmaddr);
 		__flush_cache_page(vma, vmaddr, PFN_PHYS(pfn));
 	}
 }
diff --git a/arch/parisc/kernel/firmware.c b/arch/parisc/kernel/firmware.c
index 98190252c12f..f622a311d04a 100644
--- a/arch/parisc/kernel/firmware.c
+++ b/arch/parisc/kernel/firmware.c
@@ -1481,12 +1481,44 @@ int pdc_pat_mem_read_pd_pdt(struct pdc_pat_mem_read_pd_retinfo *pret,
 		unsigned long offset)
 {
 	int retval;
-	unsigned long flags;
+	unsigned long flags, entries;
 
 	spin_lock_irqsave(&pdc_lock, flags);
 	retval = mem_pdc_call(PDC_PAT_MEM, PDC_PAT_MEM_PD_READ,
-		__pa(&pret), __pa(pdt_entries_ptr),
+		__pa(&pdc_result), __pa(pdt_entries_ptr),
 		count, offset);
+
+	if (retval == PDC_OK) {
+		entries = min(pdc_result[0], count);
+		pret->actual_count_bytes = entries;
+		pret->pdt_entries = entries / sizeof(unsigned long);
+	}
+
+	spin_unlock_irqrestore(&pdc_lock, flags);
+
+	return retval;
+}
+
+/**
+ * pdc_pat_mem_get_dimm_phys_location - Get physical DIMM slot via PAT firmware
+ * @pret: ptr to hold returned information
+ * @phys_addr: physical address to examine
+ *
+ */
+int pdc_pat_mem_get_dimm_phys_location(
+		struct pdc_pat_mem_phys_mem_location *pret,
+		unsigned long phys_addr)
+{
+	int retval;
+	unsigned long flags;
+
+	spin_lock_irqsave(&pdc_lock, flags);
+	retval = mem_pdc_call(PDC_PAT_MEM, PDC_PAT_MEM_ADDRESS,
+		__pa(&pdc_result), phys_addr);
+
+	if (retval == PDC_OK)
+		memcpy(pret, &pdc_result, sizeof(*pret));
+
 	spin_unlock_irqrestore(&pdc_lock, flags);
 
 	return retval;
diff --git a/arch/parisc/kernel/irq.c b/arch/parisc/kernel/irq.c
index ba5e1c7b1f17..0ca254085a66 100644
--- a/arch/parisc/kernel/irq.c
+++ b/arch/parisc/kernel/irq.c
@@ -380,7 +380,7 @@ static inline int eirr_to_irq(unsigned long eirr)
 /*
  * IRQ STACK - used for irq handler
  */
-#define IRQ_STACK_SIZE      (4096 << 2) /* 16k irq stack size */
+#define IRQ_STACK_SIZE      (4096 << 3) /* 32k irq stack size */
 
 union irq_stack_union {
 	unsigned long stack[IRQ_STACK_SIZE/sizeof(unsigned long)];
@@ -413,6 +413,10 @@ static inline void stack_overflow_check(struct pt_regs *regs)
 	if (regs->sr[7])
 		return;
 
+	/* exit if already in panic */
+	if (sysctl_panic_on_stackoverflow < 0)
+		return;
+
 	/* calculate kernel stack usage */
 	stack_usage = sp - stack_start;
 #ifdef CONFIG_IRQSTACKS
@@ -454,8 +458,10 @@ check_kernel_stack:
 #ifdef CONFIG_IRQSTACKS
 panic_check:
 #endif
-	if (sysctl_panic_on_stackoverflow)
+	if (sysctl_panic_on_stackoverflow) {
+		sysctl_panic_on_stackoverflow = -1; /* disable further checks */
 		panic("low stack detected by irq handler - check messages\n");
+	}
 #endif
 }
 
diff --git a/arch/parisc/kernel/pdt.c b/arch/parisc/kernel/pdt.c
index f3a797e670b0..d02874ecb94d 100644
--- a/arch/parisc/kernel/pdt.c
+++ b/arch/parisc/kernel/pdt.c
@@ -112,10 +112,12 @@ void __init pdc_pdt_init(void)
 #ifdef CONFIG_64BIT
 		struct pdc_pat_mem_read_pd_retinfo pat_pret;
 
+		/* try old obsolete PAT firmware function first */
+		pdt_type = PDT_PAT_OLD;
 		ret = pdc_pat_mem_read_cell_pdt(&pat_pret, pdt_entry,
 			MAX_PDT_ENTRIES);
 		if (ret != PDC_OK) {
-			pdt_type = PDT_PAT_OLD;
+			pdt_type = PDT_PAT_NEW;
 			ret = pdc_pat_mem_read_pd_pdt(&pat_pret, pdt_entry,
 				MAX_PDT_TABLE_SIZE, 0);
 		}
@@ -131,11 +133,20 @@ void __init pdc_pdt_init(void)
 	}
 
 	for (i = 0; i < pdt_status.pdt_entries; i++) {
-		if (i < 20)
-			pr_warn("PDT: BAD PAGE #%d at 0x%08lx (error_type = %lu)\n",
-				i,
-				pdt_entry[i] & PAGE_MASK,
-				pdt_entry[i] & 1);
+		struct pdc_pat_mem_phys_mem_location loc;
+
+		/* get DIMM slot number */
+		loc.dimm_slot = 0xff;
+#ifdef CONFIG_64BIT
+		pdc_pat_mem_get_dimm_phys_location(&loc, pdt_entry[i]);
+#endif
+
+		pr_warn("PDT: BAD PAGE #%d at 0x%08lx, "
+			"DIMM slot %02x (error_type = %lu)\n",
+			i,
+			pdt_entry[i] & PAGE_MASK,
+			loc.dimm_slot,
+			pdt_entry[i] & 1);
 
 		/* mark memory page bad */
 		memblock_reserve(pdt_entry[i] & PAGE_MASK, PAGE_SIZE);
diff --git a/arch/parisc/kernel/process.c b/arch/parisc/kernel/process.c
index b64d7d21646e..a45a67d526f8 100644
--- a/arch/parisc/kernel/process.c
+++ b/arch/parisc/kernel/process.c
@@ -53,6 +53,7 @@
 #include <linux/uaccess.h>
 #include <linux/rcupdate.h>
 #include <linux/random.h>
+#include <linux/nmi.h>
 
 #include <asm/io.h>
 #include <asm/asm-offsets.h>
@@ -145,6 +146,7 @@ void machine_power_off(void)
 
 	/* prevent soft lockup/stalled CPU messages for endless loop. */
 	rcu_sysrq_start();
+	lockup_detector_suspend();
 	for (;;);
 }
 
diff --git a/arch/parisc/kernel/vmlinux.lds.S b/arch/parisc/kernel/vmlinux.lds.S
index 3d6ef1b29c6a..ffe2cbf52d1a 100644
--- a/arch/parisc/kernel/vmlinux.lds.S
+++ b/arch/parisc/kernel/vmlinux.lds.S
@@ -78,6 +78,8 @@ SECTIONS
 		*(.text.sys_exit)
 		*(.text.do_sigaltstack)
 		*(.text.do_fork)
+		*(.text.div)
+		*($$*)			/* millicode routines */
 		*(.text.*)
 		*(.fixup)
 		*(.lock.text)		/* out-of-line lock text */
diff --git a/arch/powerpc/Kconfig b/arch/powerpc/Kconfig
index 7177a3f4f418..81b0031f909f 100644
--- a/arch/powerpc/Kconfig
+++ b/arch/powerpc/Kconfig
@@ -82,7 +82,7 @@ config NR_IRQS
 
 config NMI_IPI
 	bool
-	depends on SMP && (DEBUGGER || KEXEC_CORE)
+	depends on SMP && (DEBUGGER || KEXEC_CORE || HARDLOCKUP_DETECTOR)
 	default y
 
 config STACKTRACE_SUPPORT
@@ -125,6 +125,7 @@ config PPC
 	select ARCH_HAS_DEVMEM_IS_ALLOWED
 	select ARCH_HAS_DMA_SET_COHERENT_MASK
 	select ARCH_HAS_ELF_RANDOMIZE
+	select ARCH_HAS_FORTIFY_SOURCE
 	select ARCH_HAS_GCOV_PROFILE_ALL
 	select ARCH_HAS_SCALED_CPUTIME		if VIRT_CPU_ACCOUNTING_NATIVE
 	select ARCH_HAS_SG_CHAIN
@@ -192,11 +193,13 @@ config PPC
 	select HAVE_MEMBLOCK
 	select HAVE_MEMBLOCK_NODE_MAP
 	select HAVE_MOD_ARCH_SPECIFIC
-	select HAVE_NMI				if PERF_EVENTS
+	select HAVE_NMI				if PERF_EVENTS || (PPC64 && PPC_BOOK3S)
+	select HAVE_HARDLOCKUP_DETECTOR_ARCH	if (PPC64 && PPC_BOOK3S)
 	select HAVE_OPROFILE
 	select HAVE_OPTPROBES			if PPC64
 	select HAVE_PERF_EVENTS
 	select HAVE_PERF_EVENTS_NMI		if PPC64
+	select HAVE_HARDLOCKUP_DETECTOR_PERF	if PERF_EVENTS && HAVE_PERF_EVENTS_NMI && !HAVE_HARDLOCKUP_DETECTOR_ARCH
 	select HAVE_PERF_REGS
 	select HAVE_PERF_USER_STACK_DUMP
 	select HAVE_RCU_TABLE_FREE		if SMP
diff --git a/arch/powerpc/Makefile b/arch/powerpc/Makefile
index 8d4ed73d5490..e2b3e7a00c9e 100644
--- a/arch/powerpc/Makefile
+++ b/arch/powerpc/Makefile
@@ -59,6 +59,19 @@ machine-$(CONFIG_PPC64) += 64
 machine-$(CONFIG_CPU_LITTLE_ENDIAN) += le
 UTS_MACHINE := $(subst $(space),,$(machine-y))
 
+# XXX This needs to be before we override LD below
+ifdef CONFIG_PPC32
+KBUILD_LDFLAGS_MODULE += arch/powerpc/lib/crtsavres.o
+else
+ifeq ($(call ld-ifversion, -ge, 225000000, y),y)
+# Have the linker provide sfpr if possible.
+# There is a corresponding test in arch/powerpc/lib/Makefile
+KBUILD_LDFLAGS_MODULE += --save-restore-funcs
+else
+KBUILD_LDFLAGS_MODULE += arch/powerpc/lib/crtsavres.o
+endif
+endif
+
 ifeq ($(CONFIG_CPU_LITTLE_ENDIAN),y)
 override LD	+= -EL
 LDEMULATION	:= lppc
@@ -190,18 +203,6 @@ else
 CHECKFLAGS	+= -D__LITTLE_ENDIAN__
 endif
 
-ifdef CONFIG_PPC32
-KBUILD_LDFLAGS_MODULE += arch/powerpc/lib/crtsavres.o
-else
-ifeq ($(call ld-ifversion, -ge, 225000000, y),y)
-# Have the linker provide sfpr if possible.
-# There is a corresponding test in arch/powerpc/lib/Makefile
-KBUILD_LDFLAGS_MODULE += --save-restore-funcs
-else
-KBUILD_LDFLAGS_MODULE += arch/powerpc/lib/crtsavres.o
-endif
-endif
-
 ifeq ($(CONFIG_476FPE_ERR46),y)
 	KBUILD_LDFLAGS_MODULE += --ppc476-workaround \
 		-T $(srctree)/arch/powerpc/platforms/44x/ppc476_modules.lds
diff --git a/arch/powerpc/boot/Makefile b/arch/powerpc/boot/Makefile
index a7814a7b1523..6f952fe1f084 100644
--- a/arch/powerpc/boot/Makefile
+++ b/arch/powerpc/boot/Makefile
@@ -25,12 +25,20 @@ compress-$(CONFIG_KERNEL_XZ)   := CONFIG_KERNEL_XZ
 BOOTCFLAGS    := -Wall -Wundef -Wstrict-prototypes -Wno-trigraphs \
 		 -fno-strict-aliasing -Os -msoft-float -pipe \
 		 -fomit-frame-pointer -fno-builtin -fPIC -nostdinc \
-		 -isystem $(shell $(CROSS32CC) -print-file-name=include) \
 		 -D$(compress-y)
 
+BOOTCC := $(CC)
 ifdef CONFIG_PPC64_BOOT_WRAPPER
 BOOTCFLAGS	+= -m64
+else
+BOOTCFLAGS	+= -m32
+ifdef CROSS32_COMPILE
+    BOOTCC := $(CROSS32_COMPILE)gcc
+endif
 endif
+
+BOOTCFLAGS	+= -isystem $(shell $(BOOTCC) -print-file-name=include)
+
 ifdef CONFIG_CPU_BIG_ENDIAN
 BOOTCFLAGS	+= -mbig-endian
 else
@@ -183,10 +191,10 @@ clean-files := $(zlib-) $(zlibheader-) $(zliblinuxheader-) \
 		empty.c zImage.coff.lds zImage.ps3.lds zImage.lds
 
 quiet_cmd_bootcc = BOOTCC  $@
-      cmd_bootcc = $(CROSS32CC) -Wp,-MD,$(depfile) $(BOOTCFLAGS) -c -o $@ $<
+      cmd_bootcc = $(BOOTCC) -Wp,-MD,$(depfile) $(BOOTCFLAGS) -c -o $@ $<
 
 quiet_cmd_bootas = BOOTAS  $@
-      cmd_bootas = $(CROSS32CC) -Wp,-MD,$(depfile) $(BOOTAFLAGS) -c -o $@ $<
+      cmd_bootas = $(BOOTCC) -Wp,-MD,$(depfile) $(BOOTAFLAGS) -c -o $@ $<
 
 quiet_cmd_bootar = BOOTAR  $@
       cmd_bootar = $(CROSS32AR) -cr$(KBUILD_ARFLAGS) $@.$$$$ $(filter-out FORCE,$^); mv $@.$$$$ $@
diff --git a/arch/powerpc/configs/powernv_defconfig b/arch/powerpc/configs/powernv_defconfig
index 0695ce047d56..34fc9bbfca9e 100644
--- a/arch/powerpc/configs/powernv_defconfig
+++ b/arch/powerpc/configs/powernv_defconfig
@@ -293,7 +293,8 @@ CONFIG_MAGIC_SYSRQ=y
 CONFIG_DEBUG_KERNEL=y
 CONFIG_DEBUG_STACK_USAGE=y
 CONFIG_DEBUG_STACKOVERFLOW=y
-CONFIG_LOCKUP_DETECTOR=y
+CONFIG_SOFTLOCKUP_DETECTOR=y
+CONFIG_HARDLOCKUP_DETECTOR=y
 CONFIG_LATENCYTOP=y
 CONFIG_SCHED_TRACER=y
 CONFIG_BLK_DEV_IO_TRACE=y
diff --git a/arch/powerpc/configs/ppc64_defconfig b/arch/powerpc/configs/ppc64_defconfig
index 5175028c56ce..c5246d29f385 100644
--- a/arch/powerpc/configs/ppc64_defconfig
+++ b/arch/powerpc/configs/ppc64_defconfig
@@ -324,7 +324,8 @@ CONFIG_MAGIC_SYSRQ=y
 CONFIG_DEBUG_KERNEL=y
 CONFIG_DEBUG_STACK_USAGE=y
 CONFIG_DEBUG_STACKOVERFLOW=y
-CONFIG_LOCKUP_DETECTOR=y
+CONFIG_SOFTLOCKUP_DETECTOR=y
+CONFIG_HARDLOCKUP_DETECTOR=y
 CONFIG_DEBUG_MUTEXES=y
 CONFIG_LATENCYTOP=y
 CONFIG_SCHED_TRACER=y
diff --git a/arch/powerpc/configs/pseries_defconfig b/arch/powerpc/configs/pseries_defconfig
index 1a61aa20dfba..fd5d98a0b95c 100644
--- a/arch/powerpc/configs/pseries_defconfig
+++ b/arch/powerpc/configs/pseries_defconfig
@@ -291,7 +291,8 @@ CONFIG_MAGIC_SYSRQ=y
 CONFIG_DEBUG_KERNEL=y
 CONFIG_DEBUG_STACK_USAGE=y
 CONFIG_DEBUG_STACKOVERFLOW=y
-CONFIG_LOCKUP_DETECTOR=y
+CONFIG_SOFTLOCKUP_DETECTOR=y
+CONFIG_HARDLOCKUP_DETECTOR=y
 CONFIG_LATENCYTOP=y
 CONFIG_SCHED_TRACER=y
 CONFIG_BLK_DEV_IO_TRACE=y
diff --git a/arch/powerpc/include/asm/atomic.h b/arch/powerpc/include/asm/atomic.h
index 2b90335194a7..a2cc8010cd72 100644
--- a/arch/powerpc/include/asm/atomic.h
+++ b/arch/powerpc/include/asm/atomic.h
@@ -560,7 +560,7 @@ static __inline__ int atomic64_add_unless(atomic64_t *v, long a, long u)
  * Atomically increments @v by 1, so long as @v is non-zero.
  * Returns non-zero if @v was non-zero, and zero otherwise.
  */
-static __inline__ long atomic64_inc_not_zero(atomic64_t *v)
+static __inline__ int atomic64_inc_not_zero(atomic64_t *v)
 {
 	long t1, t2;
 
@@ -579,7 +579,7 @@ static __inline__ long atomic64_inc_not_zero(atomic64_t *v)
 	: "r" (&v->counter)
 	: "cc", "xer", "memory");
 
-	return t1;
+	return t1 != 0;
 }
 
 #endif /* __powerpc64__ */
diff --git a/arch/powerpc/include/asm/book3s/64/hash.h b/arch/powerpc/include/asm/book3s/64/hash.h
index 0ce513f2926f..36fc7bfe9e11 100644
--- a/arch/powerpc/include/asm/book3s/64/hash.h
+++ b/arch/powerpc/include/asm/book3s/64/hash.h
@@ -91,6 +91,7 @@ static inline int hash__pgd_bad(pgd_t pgd)
 }
 #ifdef CONFIG_STRICT_KERNEL_RWX
 extern void hash__mark_rodata_ro(void);
+extern void hash__mark_initmem_nx(void);
 #endif
 
 extern void hpte_need_flush(struct mm_struct *mm, unsigned long addr,
diff --git a/arch/powerpc/include/asm/book3s/64/mmu.h b/arch/powerpc/include/asm/book3s/64/mmu.h
index 77529a3e3811..5b4023c616f7 100644
--- a/arch/powerpc/include/asm/book3s/64/mmu.h
+++ b/arch/powerpc/include/asm/book3s/64/mmu.h
@@ -59,13 +59,14 @@ extern struct patb_entry *partition_tb;
 #define PRTS_MASK	0x1f		/* process table size field */
 #define PRTB_MASK	0x0ffffffffffff000UL
 
-/*
- * Limit process table to PAGE_SIZE table. This
- * also limit the max pid we can support.
- * MAX_USER_CONTEXT * 16 bytes of space.
- */
-#define PRTB_SIZE_SHIFT	(CONTEXT_BITS + 4)
-#define PRTB_ENTRIES	(1ul << CONTEXT_BITS)
+/* Number of supported PID bits */
+extern unsigned int mmu_pid_bits;
+
+/* Base PID to allocate from */
+extern unsigned int mmu_base_pid;
+
+#define PRTB_SIZE_SHIFT	(mmu_pid_bits + 4)
+#define PRTB_ENTRIES	(1ul << mmu_pid_bits)
 
 /*
  * Power9 currently only support 64K partition table size.
diff --git a/arch/powerpc/include/asm/book3s/64/pgalloc.h b/arch/powerpc/include/asm/book3s/64/pgalloc.h
index 20b1485ff1e8..e2329db9d6f4 100644
--- a/arch/powerpc/include/asm/book3s/64/pgalloc.h
+++ b/arch/powerpc/include/asm/book3s/64/pgalloc.h
@@ -56,7 +56,7 @@ static inline pgd_t *radix__pgd_alloc(struct mm_struct *mm)
 	return (pgd_t *)__get_free_page(pgtable_gfp_flags(mm, PGALLOC_GFP));
 #else
 	struct page *page;
-	page = alloc_pages(pgtable_gfp_flags(mm, PGALLOC_GFP | __GFP_REPEAT),
+	page = alloc_pages(pgtable_gfp_flags(mm, PGALLOC_GFP | __GFP_RETRY_MAYFAIL),
 				4);
 	if (!page)
 		return NULL;
diff --git a/arch/powerpc/include/asm/book3s/64/pgtable.h b/arch/powerpc/include/asm/book3s/64/pgtable.h
index c0737c86a362..818a58fc3f4f 100644
--- a/arch/powerpc/include/asm/book3s/64/pgtable.h
+++ b/arch/powerpc/include/asm/book3s/64/pgtable.h
@@ -608,9 +608,17 @@ static inline pte_t pte_mkdevmap(pte_t pte)
 	return __pte(pte_val(pte) | _PAGE_SPECIAL|_PAGE_DEVMAP);
 }
 
+/*
+ * This is potentially called with a pmd as the argument, in which case it's not
+ * safe to check _PAGE_DEVMAP unless we also confirm that _PAGE_PTE is set.
+ * That's because the bit we use for _PAGE_DEVMAP is not reserved for software
+ * use in page directory entries (ie. non-ptes).
+ */
 static inline int pte_devmap(pte_t pte)
 {
-	return !!(pte_raw(pte) & cpu_to_be64(_PAGE_DEVMAP));
+	u64 mask = cpu_to_be64(_PAGE_DEVMAP | _PAGE_PTE);
+
+	return (pte_raw(pte) & mask) == mask;
 }
 
 static inline pte_t pte_modify(pte_t pte, pgprot_t newprot)
@@ -1192,5 +1200,6 @@ static inline const int pud_pfn(pud_t pud)
 	BUILD_BUG();
 	return 0;
 }
+
 #endif /* __ASSEMBLY__ */
 #endif /* _ASM_POWERPC_BOOK3S_64_PGTABLE_H_ */
diff --git a/arch/powerpc/include/asm/book3s/64/radix.h b/arch/powerpc/include/asm/book3s/64/radix.h
index 487709ff6875..544440b5aff3 100644
--- a/arch/powerpc/include/asm/book3s/64/radix.h
+++ b/arch/powerpc/include/asm/book3s/64/radix.h
@@ -118,6 +118,7 @@
 
 #ifdef CONFIG_STRICT_KERNEL_RWX
 extern void radix__mark_rodata_ro(void);
+extern void radix__mark_initmem_nx(void);
 #endif
 
 static inline unsigned long __radix_pte_update(pte_t *ptep, unsigned long clr,
diff --git a/arch/powerpc/include/asm/bug.h b/arch/powerpc/include/asm/bug.h
index 0151af6c2a50..87fcc1948817 100644
--- a/arch/powerpc/include/asm/bug.h
+++ b/arch/powerpc/include/asm/bug.h
@@ -18,7 +18,7 @@
 #include <asm/asm-offsets.h>
 #ifdef CONFIG_DEBUG_BUGVERBOSE
 .macro EMIT_BUG_ENTRY addr,file,line,flags
-	 .section __bug_table,"a"
+	 .section __bug_table,"aw"
 5001:	 PPC_LONG \addr, 5002f
 	 .short \line, \flags
 	 .org 5001b+BUG_ENTRY_SIZE
@@ -29,7 +29,7 @@
 .endm
 #else
 .macro EMIT_BUG_ENTRY addr,file,line,flags
-	 .section __bug_table,"a"
+	 .section __bug_table,"aw"
 5001:	 PPC_LONG \addr
 	 .short \flags
 	 .org 5001b+BUG_ENTRY_SIZE
@@ -42,14 +42,14 @@
    sizeof(struct bug_entry), respectively */
 #ifdef CONFIG_DEBUG_BUGVERBOSE
 #define _EMIT_BUG_ENTRY				\
-	".section __bug_table,\"a\"\n"		\
+	".section __bug_table,\"aw\"\n"		\
 	"2:\t" PPC_LONG "1b, %0\n"		\
 	"\t.short %1, %2\n"			\
 	".org 2b+%3\n"				\
 	".previous\n"
 #else
 #define _EMIT_BUG_ENTRY				\
-	".section __bug_table,\"a\"\n"		\
+	".section __bug_table,\"aw\"\n"		\
 	"2:\t" PPC_LONG "1b\n"			\
 	"\t.short %2\n"				\
 	".org 2b+%3\n"				\
diff --git a/arch/powerpc/include/asm/mmu_context.h b/arch/powerpc/include/asm/mmu_context.h
index da7e9432fa8f..0c76675394c5 100644
--- a/arch/powerpc/include/asm/mmu_context.h
+++ b/arch/powerpc/include/asm/mmu_context.h
@@ -45,7 +45,7 @@ extern void set_context(unsigned long id, pgd_t *pgd);
 
 #ifdef CONFIG_PPC_BOOK3S_64
 extern void radix__switch_mmu_context(struct mm_struct *prev,
-				     struct mm_struct *next);
+				      struct mm_struct *next);
 static inline void switch_mmu_context(struct mm_struct *prev,
 				      struct mm_struct *next,
 				      struct task_struct *tsk)
@@ -67,6 +67,12 @@ extern void __destroy_context(unsigned long context_id);
 extern void mmu_context_init(void);
 #endif
 
+#if defined(CONFIG_KVM_BOOK3S_HV_POSSIBLE) && defined(CONFIG_PPC_RADIX_MMU)
+extern void radix_kvm_prefetch_workaround(struct mm_struct *mm);
+#else
+static inline void radix_kvm_prefetch_workaround(struct mm_struct *mm) { }
+#endif
+
 extern void switch_cop(struct mm_struct *next);
 extern int use_cop(unsigned long acop, struct mm_struct *mm);
 extern void drop_cop(unsigned long acop, struct mm_struct *mm);
@@ -79,9 +85,13 @@ static inline void switch_mm_irqs_off(struct mm_struct *prev,
 				      struct mm_struct *next,
 				      struct task_struct *tsk)
 {
+	bool new_on_cpu = false;
+
 	/* Mark this context has been used on the new CPU */
-	if (!cpumask_test_cpu(smp_processor_id(), mm_cpumask(next)))
+	if (!cpumask_test_cpu(smp_processor_id(), mm_cpumask(next))) {
 		cpumask_set_cpu(smp_processor_id(), mm_cpumask(next));
+		new_on_cpu = true;
+	}
 
 	/* 32-bit keeps track of the current PGDIR in the thread struct */
 #ifdef CONFIG_PPC32
@@ -109,6 +119,10 @@ static inline void switch_mm_irqs_off(struct mm_struct *prev,
 	if (cpu_has_feature(CPU_FTR_ALTIVEC))
 		asm volatile ("dssall");
 #endif /* CONFIG_ALTIVEC */
+
+	if (new_on_cpu)
+		radix_kvm_prefetch_workaround(next);
+
 	/*
 	 * The actual HW switching method differs between the various
 	 * sub architectures. Out of line for now
diff --git a/arch/powerpc/include/asm/nmi.h b/arch/powerpc/include/asm/nmi.h
index ff1ccb375e60..6f8e79cd35d8 100644
--- a/arch/powerpc/include/asm/nmi.h
+++ b/arch/powerpc/include/asm/nmi.h
@@ -1,4 +1,15 @@
 #ifndef _ASM_NMI_H
 #define _ASM_NMI_H
 
+#ifdef CONFIG_HARDLOCKUP_DETECTOR
+extern void arch_touch_nmi_watchdog(void);
+
+extern void arch_trigger_cpumask_backtrace(const cpumask_t *mask,
+					   bool exclude_self);
+#define arch_trigger_cpumask_backtrace arch_trigger_cpumask_backtrace
+
+#else
+static inline void arch_touch_nmi_watchdog(void) {}
+#endif
+
 #endif /* _ASM_NMI_H */
diff --git a/arch/powerpc/include/asm/opal-api.h b/arch/powerpc/include/asm/opal-api.h
index ef930ba500f9..3130a73652c7 100644
--- a/arch/powerpc/include/asm/opal-api.h
+++ b/arch/powerpc/include/asm/opal-api.h
@@ -876,6 +876,15 @@ struct OpalIoPhb4ErrorData {
 enum {
 	OPAL_REINIT_CPUS_HILE_BE	= (1 << 0),
 	OPAL_REINIT_CPUS_HILE_LE	= (1 << 1),
+
+	/* These two define the base MMU mode of the host on P9
+	 *
+	 * On P9 Nimbus DD2.0 and Cumlus (and later), KVM can still
+	 * create hash guests in "radix" mode with care (full core
+	 * switch only).
+	 */
+	OPAL_REINIT_CPUS_MMU_HASH	= (1 << 2),
+	OPAL_REINIT_CPUS_MMU_RADIX	= (1 << 3),
 };
 
 typedef struct oppanel_line {
diff --git a/arch/powerpc/include/asm/pgtable.h b/arch/powerpc/include/asm/pgtable.h
index dd01212935ac..afae9a336136 100644
--- a/arch/powerpc/include/asm/pgtable.h
+++ b/arch/powerpc/include/asm/pgtable.h
@@ -80,6 +80,13 @@ unsigned long vmalloc_to_phys(void *vmalloc_addr);
 
 void pgtable_cache_add(unsigned shift, void (*ctor)(void *));
 void pgtable_cache_init(void);
+
+#ifdef CONFIG_STRICT_KERNEL_RWX
+void mark_initmem_nx(void);
+#else
+static inline void mark_initmem_nx(void) { }
+#endif
+
 #endif /* __ASSEMBLY__ */
 
 #endif /* _ASM_POWERPC_PGTABLE_H */
diff --git a/arch/powerpc/include/asm/reg.h b/arch/powerpc/include/asm/reg.h
index 7e50e47375d6..a3b6575c7842 100644
--- a/arch/powerpc/include/asm/reg.h
+++ b/arch/powerpc/include/asm/reg.h
@@ -1303,7 +1303,7 @@ static inline void msr_check_and_clear(unsigned long bits)
 				"	.llong 0\n"			\
 				".previous"				\
 			: "=r" (rval) \
-			: "i" (CPU_FTR_CELL_TB_BUG), "i" (SPRN_TBRL)); \
+			: "i" (CPU_FTR_CELL_TB_BUG), "i" (SPRN_TBRL) : "cr0"); \
 			rval;})
 #else
 #define mftb()		({unsigned long rval;	\
diff --git a/arch/powerpc/include/asm/smp.h b/arch/powerpc/include/asm/smp.h
index ebddb2111d87..8ea98504f900 100644
--- a/arch/powerpc/include/asm/smp.h
+++ b/arch/powerpc/include/asm/smp.h
@@ -55,6 +55,8 @@ struct smp_ops_t {
 	int   (*cpu_bootable)(unsigned int nr);
 };
 
+extern void smp_flush_nmi_ipi(u64 delay_us);
+extern int smp_send_nmi_ipi(int cpu, void (*fn)(struct pt_regs *), u64 delay_us);
 extern void smp_send_debugger_break(void);
 extern void start_secondary_resume(void);
 extern void smp_generic_give_timebase(void);
diff --git a/arch/powerpc/include/asm/uaccess.h b/arch/powerpc/include/asm/uaccess.h
index 4cf57f2126e6..9c0e60ca1666 100644
--- a/arch/powerpc/include/asm/uaccess.h
+++ b/arch/powerpc/include/asm/uaccess.h
@@ -90,9 +90,6 @@
 #define __put_user_inatomic(x, ptr) \
 	__put_user_nosleep((__typeof__(*(ptr)))(x), (ptr), sizeof(*(ptr)))
 
-#define __get_user_unaligned __get_user
-#define __put_user_unaligned __put_user
-
 extern long __put_user_bad(void);
 
 /*
diff --git a/arch/powerpc/include/uapi/asm/ioctls.h b/arch/powerpc/include/uapi/asm/ioctls.h
index bfd609a3e928..e3b10469f787 100644
--- a/arch/powerpc/include/uapi/asm/ioctls.h
+++ b/arch/powerpc/include/uapi/asm/ioctls.h
@@ -100,7 +100,7 @@
 #define TIOCGPKT	_IOR('T', 0x38, int) /* Get packet mode state */
 #define TIOCGPTLCK	_IOR('T', 0x39, int) /* Get Pty lock state */
 #define TIOCGEXCL	_IOR('T', 0x40, int) /* Get exclusive mode state */
-#define TIOCGPTPEER	_IOR('T', 0x41, int) /* Safely open the slave */
+#define TIOCGPTPEER	_IO('T', 0x41) /* Safely open the slave */
 
 #define TIOCSERCONFIG	0x5453
 #define TIOCSERGWILD	0x5454
diff --git a/arch/powerpc/kernel/Makefile b/arch/powerpc/kernel/Makefile
index 0845eebc5af3..4aa7c147e447 100644
--- a/arch/powerpc/kernel/Makefile
+++ b/arch/powerpc/kernel/Makefile
@@ -38,6 +38,7 @@ obj-$(CONFIG_PPC64)		+= setup_64.o sys_ppc32.o \
 				   signal_64.o ptrace32.o \
 				   paca.o nvram_64.o firmware.o
 obj-$(CONFIG_VDSO32)		+= vdso32/
+obj-$(CONFIG_HARDLOCKUP_DETECTOR)	+= watchdog.o
 obj-$(CONFIG_HAVE_HW_BREAKPOINT)	+= hw_breakpoint.o
 obj-$(CONFIG_PPC_BOOK3S_64)	+= cpu_setup_ppc970.o cpu_setup_pa6t.o
 obj-$(CONFIG_PPC_BOOK3S_64)	+= cpu_setup_power.o
diff --git a/arch/powerpc/kernel/cpu_setup_power.S b/arch/powerpc/kernel/cpu_setup_power.S
index 10cb2896b2ae..610955fe8b81 100644
--- a/arch/powerpc/kernel/cpu_setup_power.S
+++ b/arch/powerpc/kernel/cpu_setup_power.S
@@ -218,13 +218,20 @@ __init_tlb_power8:
 	ptesync
 1:	blr
 
+/*
+ * Flush the TLB in hash mode. Hash must flush with RIC=2 once for process
+ * and one for partition scope to clear process and partition table entries.
+ */
 __init_tlb_power9:
-	li	r6,POWER9_TLB_SETS_HASH
+	li	r6,POWER9_TLB_SETS_HASH - 1
 	mtctr	r6
 	li	r7,0xc00	/* IS field = 0b11 */
+	li	r8,0
 	ptesync
-2:	tlbiel	r7
-	addi	r7,r7,0x1000
+	PPC_TLBIEL(7, 8, 2, 1, 0)
+	PPC_TLBIEL(7, 8, 2, 0, 0)
+2:	addi	r7,r7,0x1000
+	PPC_TLBIEL(7, 8, 0, 0, 0)
 	bdnz	2b
 	ptesync
 1:	blr
diff --git a/arch/powerpc/kernel/dt_cpu_ftrs.c b/arch/powerpc/kernel/dt_cpu_ftrs.c
index 4c7656dc4e04..1df770e8cbe0 100644
--- a/arch/powerpc/kernel/dt_cpu_ftrs.c
+++ b/arch/powerpc/kernel/dt_cpu_ftrs.c
@@ -94,9 +94,6 @@ static void (*init_pmu_registers)(void);
 
 static void cpufeatures_flush_tlb(void)
 {
-	unsigned long rb;
-	unsigned int i, num_sets;
-
 	/*
 	 * This is a temporary measure to keep equivalent TLB flush as the
 	 * cputable based setup code.
@@ -105,24 +102,15 @@ static void cpufeatures_flush_tlb(void)
 	case PVR_POWER8:
 	case PVR_POWER8E:
 	case PVR_POWER8NVL:
-		num_sets = POWER8_TLB_SETS;
+		__flush_tlb_power8(POWER8_TLB_SETS);
 		break;
 	case PVR_POWER9:
-		num_sets = POWER9_TLB_SETS_HASH;
+		__flush_tlb_power9(POWER9_TLB_SETS_HASH);
 		break;
 	default:
-		num_sets = 1;
 		pr_err("unknown CPU version for boot TLB flush\n");
 		break;
 	}
-
-	asm volatile("ptesync" : : : "memory");
-	rb = TLBIEL_INVAL_SET;
-	for (i = 0; i < num_sets; i++) {
-		asm volatile("tlbiel %0" : : "r" (rb));
-		rb += 1 << TLBIEL_INVAL_SET_SHIFT;
-	}
-	asm volatile("ptesync" : : : "memory");
 }
 
 static void __restore_cpu_cpufeatures(void)
diff --git a/arch/powerpc/kernel/entry_64.S b/arch/powerpc/kernel/entry_64.S
index 49d8422767b4..e925c1c99c71 100644
--- a/arch/powerpc/kernel/entry_64.S
+++ b/arch/powerpc/kernel/entry_64.S
@@ -223,17 +223,27 @@ system_call_exit:
 	andi.	r0,r9,(_TIF_SYSCALL_DOTRACE|_TIF_SINGLESTEP|_TIF_USER_WORK_MASK|_TIF_PERSYSCALL_MASK)
 	bne-	.Lsyscall_exit_work
 
-	/* If MSR_FP and MSR_VEC are set in user msr, then no need to restore */
-	li	r7,MSR_FP
+	andi.	r0,r8,MSR_FP
+	beq 2f
 #ifdef CONFIG_ALTIVEC
-	oris	r7,r7,MSR_VEC@h
+	andis.	r0,r8,MSR_VEC@h
+	bne	3f
 #endif
-	and	r0,r8,r7
-	cmpd	r0,r7
-	bne	.Lsyscall_restore_math
-.Lsyscall_restore_math_cont:
+2:	addi    r3,r1,STACK_FRAME_OVERHEAD
+#ifdef CONFIG_PPC_BOOK3S
+	li	r10,MSR_RI
+	mtmsrd	r10,1		/* Restore RI */
+#endif
+	bl	restore_math
+#ifdef CONFIG_PPC_BOOK3S
+	li	r11,0
+	mtmsrd	r11,1
+#endif
+	ld	r8,_MSR(r1)
+	ld	r3,RESULT(r1)
+	li	r11,-MAX_ERRNO
 
-	cmpld	r3,r11
+3:	cmpld	r3,r11
 	ld	r5,_CCR(r1)
 	bge-	.Lsyscall_error
 .Lsyscall_error_cont:
@@ -267,40 +277,6 @@ END_FTR_SECTION_IFSET(CPU_FTR_HAS_PPR)
 	std	r5,_CCR(r1)
 	b	.Lsyscall_error_cont
 
-.Lsyscall_restore_math:
-	/*
-	 * Some initial tests from restore_math to avoid the heavyweight
-	 * C code entry and MSR manipulations.
-	 */
-	LOAD_REG_IMMEDIATE(r0, MSR_TS_MASK)
-	and.	r0,r0,r8
-	bne	1f
-
-	ld	r7,PACACURRENT(r13)
-	lbz	r0,THREAD+THREAD_LOAD_FP(r7)
-#ifdef CONFIG_ALTIVEC
-	lbz	r6,THREAD+THREAD_LOAD_VEC(r7)
-	add	r0,r0,r6
-#endif
-	cmpdi	r0,0
-	beq	.Lsyscall_restore_math_cont
-
-1:	addi    r3,r1,STACK_FRAME_OVERHEAD
-#ifdef CONFIG_PPC_BOOK3S
-	li	r10,MSR_RI
-	mtmsrd	r10,1		/* Restore RI */
-#endif
-	bl	restore_math
-#ifdef CONFIG_PPC_BOOK3S
-	li	r11,0
-	mtmsrd	r11,1
-#endif
-	/* Restore volatiles, reload MSR from updated one */
-	ld	r8,_MSR(r1)
-	ld	r3,RESULT(r1)
-	li	r11,-MAX_ERRNO
-	b	.Lsyscall_restore_math_cont
-
 /* Traced system call support */
 .Lsyscall_dotrace:
 	bl	save_nvgprs
diff --git a/arch/powerpc/kernel/exceptions-64s.S b/arch/powerpc/kernel/exceptions-64s.S
index 4c18a5fbb4bb..f14f3c04ec7e 100644
--- a/arch/powerpc/kernel/exceptions-64s.S
+++ b/arch/powerpc/kernel/exceptions-64s.S
@@ -824,7 +824,7 @@ EXC_COMMON(trap_0b_common, 0xb00, unknown_exception)
  * r3 volatile parameter and return value for status
  * r4-r10 volatile input and output value
  * r11 volatile hypercall number and output value
- * r12 volatile
+ * r12 volatile input and output value
  * r13-r31 nonvolatile
  * LR nonvolatile
  * CTR volatile
@@ -834,25 +834,26 @@ EXC_COMMON(trap_0b_common, 0xb00, unknown_exception)
  * Other registers nonvolatile
  *
  * The intersection of volatile registers that don't contain possible
- * inputs is: r12, cr0, xer, ctr. We may use these as scratch regs
- * upon entry without saving.
+ * inputs is: cr0, xer, ctr. We may use these as scratch regs upon entry
+ * without saving, though xer is not a good idea to use, as hardware may
+ * interpret some bits so it may be costly to change them.
  */
 #ifdef CONFIG_KVM_BOOK3S_64_HANDLER
 	/*
 	 * There is a little bit of juggling to get syscall and hcall
-	 * working well. Save r10 in ctr to be restored in case it is a
-	 * hcall.
+	 * working well. Save r13 in ctr to avoid using SPRG scratch
+	 * register.
 	 *
 	 * Userspace syscalls have already saved the PPR, hcalls must save
 	 * it before setting HMT_MEDIUM.
 	 */
 #define SYSCALL_KVMTEST							\
-	mr	r12,r13;						\
+	mtctr	r13;							\
 	GET_PACA(r13);							\
-	mtctr	r10;							\
+	std	r10,PACA_EXGEN+EX_R10(r13);				\
 	KVMTEST_PR(0xc00); /* uses r10, branch to do_kvm_0xc00_system_call */ \
 	HMT_MEDIUM;							\
-	mr	r9,r12;							\
+	mfctr	r9;
 
 #else
 #define SYSCALL_KVMTEST							\
@@ -935,8 +936,8 @@ EXC_VIRT_END(system_call, 0x4c00, 0x100)
 	 * This is a hcall, so register convention is as above, with these
 	 * differences:
 	 * r13 = PACA
-	 * r12 = orig r13
-	 * ctr = orig r10
+	 * ctr = orig r13
+	 * orig r10 saved in PACA
 	 */
 TRAMP_KVM_BEGIN(do_kvm_0xc00)
 	 /*
@@ -944,14 +945,13 @@ TRAMP_KVM_BEGIN(do_kvm_0xc00)
 	  * HMT_MEDIUM. That allows the KVM code to save that value into the
 	  * guest state (it is the guest's PPR value).
 	  */
-	OPT_GET_SPR(r0, SPRN_PPR, CPU_FTR_HAS_PPR)
+	OPT_GET_SPR(r10, SPRN_PPR, CPU_FTR_HAS_PPR)
 	HMT_MEDIUM
-	OPT_SAVE_REG_TO_PACA(PACA_EXGEN+EX_PPR, r0, CPU_FTR_HAS_PPR)
+	OPT_SAVE_REG_TO_PACA(PACA_EXGEN+EX_PPR, r10, CPU_FTR_HAS_PPR)
 	mfctr	r10
-	SET_SCRATCH0(r12)
+	SET_SCRATCH0(r10)
 	std	r9,PACA_EXGEN+EX_R9(r13)
 	mfcr	r9
-	std	r10,PACA_EXGEN+EX_R10(r13)
 	KVM_HANDLER(PACA_EXGEN, EXC_STD, 0xc00)
 #endif
 
@@ -1314,6 +1314,39 @@ EXC_REAL_NONE(0x1800, 0x100)
 EXC_VIRT_NONE(0x5800, 0x100)
 #endif
 
+#if defined(CONFIG_HARDLOCKUP_DETECTOR) && defined(CONFIG_HAVE_HARDLOCKUP_DETECTOR_ARCH)
+
+#define MASKED_DEC_HANDLER_LABEL 3f
+
+#define MASKED_DEC_HANDLER(_H)				\
+3: /* soft-nmi */					\
+	std	r12,PACA_EXGEN+EX_R12(r13);		\
+	GET_SCRATCH0(r10);				\
+	std	r10,PACA_EXGEN+EX_R13(r13);		\
+	EXCEPTION_PROLOG_PSERIES_1(soft_nmi_common, _H)
+
+/*
+ * Branch to soft_nmi_interrupt using the emergency stack. The emergency
+ * stack is one that is usable by maskable interrupts so long as MSR_EE
+ * remains off. It is used for recovery when something has corrupted the
+ * normal kernel stack, for example. The "soft NMI" must not use the process
+ * stack because we want irq disabled sections to avoid touching the stack
+ * at all (other than PMU interrupts), so use the emergency stack for this,
+ * and run it entirely with interrupts hard disabled.
+ */
+EXC_COMMON_BEGIN(soft_nmi_common)
+	mr	r10,r1
+	ld	r1,PACAEMERGSP(r13)
+	subi	r1,r1,INT_FRAME_SIZE
+	EXCEPTION_COMMON_NORET_STACK(PACA_EXGEN, 0x900,
+			system_reset, soft_nmi_interrupt,
+			ADD_NVGPRS;ADD_RECONCILE)
+	b	ret_from_except
+
+#else
+#define MASKED_DEC_HANDLER_LABEL 2f /* normal return */
+#define MASKED_DEC_HANDLER(_H)
+#endif
 
 /*
  * An interrupt came in while soft-disabled. We set paca->irq_happened, then:
@@ -1336,7 +1369,7 @@ masked_##_H##interrupt:					\
 	lis	r10,0x7fff;				\
 	ori	r10,r10,0xffff;				\
 	mtspr	SPRN_DEC,r10;				\
-	b	2f;					\
+	b	MASKED_DEC_HANDLER_LABEL;		\
 1:	cmpwi	r10,PACA_IRQ_DBELL;			\
 	beq	2f;					\
 	cmpwi	r10,PACA_IRQ_HMI;			\
@@ -1351,7 +1384,8 @@ masked_##_H##interrupt:					\
 	ld	r11,PACA_EXGEN+EX_R11(r13);		\
 	GET_SCRATCH0(r13);				\
 	##_H##rfid;					\
-	b	.
+	b	.;					\
+	MASKED_DEC_HANDLER(_H)
 
 /*
  * Real mode exceptions actually use this too, but alternate
diff --git a/arch/powerpc/kernel/fadump.c b/arch/powerpc/kernel/fadump.c
index 3079518f2245..dc0c49cfd90a 100644
--- a/arch/powerpc/kernel/fadump.c
+++ b/arch/powerpc/kernel/fadump.c
@@ -999,8 +999,7 @@ static int fadump_create_elfcore_headers(char *bufp)
 
 	phdr->p_paddr	= fadump_relocate(paddr_vmcoreinfo_note());
 	phdr->p_offset	= phdr->p_paddr;
-	phdr->p_memsz	= vmcoreinfo_max_size;
-	phdr->p_filesz	= vmcoreinfo_max_size;
+	phdr->p_memsz	= phdr->p_filesz = VMCOREINFO_NOTE_SIZE;
 
 	/* Increment number of program headers. */
 	(elf->e_phnum)++;
diff --git a/arch/powerpc/kernel/idle_book3s.S b/arch/powerpc/kernel/idle_book3s.S
index 5adb390e773b..e6252c5a57a4 100644
--- a/arch/powerpc/kernel/idle_book3s.S
+++ b/arch/powerpc/kernel/idle_book3s.S
@@ -30,6 +30,7 @@
  * Use unused space in the interrupt stack to save and restore
  * registers for winkle support.
  */
+#define _MMCR0	GPR0
 #define _SDR1	GPR3
 #define _PTCR	GPR3
 #define _RPR	GPR4
@@ -272,6 +273,14 @@ power_enter_stop:
 	b 	pnv_wakeup_noloss
 
 .Lhandle_esl_ec_set:
+	/*
+	 * POWER9 DD2 can incorrectly set PMAO when waking up after a
+	 * state-loss idle. Saving and restoring MMCR0 over idle is a
+	 * workaround.
+	 */
+	mfspr	r4,SPRN_MMCR0
+	std	r4,_MMCR0(r1)
+
 /*
  * Check if the requested state is a deep idle state.
  */
@@ -450,10 +459,20 @@ ALT_FTR_SECTION_END_IFSET(CPU_FTR_ARCH_300)
 pnv_restore_hyp_resource_arch300:
 	/*
 	 * Workaround for POWER9, if we lost resources, the ERAT
-	 * might have been mixed up and needs flushing.
+	 * might have been mixed up and needs flushing. We also need
+	 * to reload MMCR0 (see comment above). We also need to set
+	 * then clear bit 60 in MMCRA to ensure the PMU starts running.
 	 */
 	blt	cr3,1f
 	PPC_INVALIDATE_ERAT
+	ld	r1,PACAR1(r13)
+	mfspr	r4,SPRN_MMCRA
+	ori	r4,r4,(1 << (63-60))
+	mtspr	SPRN_MMCRA,r4
+	xori	r4,r4,(1 << (63-60))
+	mtspr	SPRN_MMCRA,r4
+	ld	r4,_MMCR0(r1)
+	mtspr	SPRN_MMCR0,r4
 1:
 	/*
 	 * POWER ISA 3. Use PSSCR to determine if we
diff --git a/arch/powerpc/kernel/irq.c b/arch/powerpc/kernel/irq.c
index 0bcec745a672..f291f7826abc 100644
--- a/arch/powerpc/kernel/irq.c
+++ b/arch/powerpc/kernel/irq.c
@@ -145,6 +145,19 @@ notrace unsigned int __check_irq_replay(void)
 
 	/* Clear bit 0 which we wouldn't clear otherwise */
 	local_paca->irq_happened &= ~PACA_IRQ_HARD_DIS;
+	if (happened & PACA_IRQ_HARD_DIS) {
+		/*
+		 * We may have missed a decrementer interrupt if hard disabled.
+		 * Check the decrementer register in case we had a rollover
+		 * while hard disabled.
+		 */
+		if (!(happened & PACA_IRQ_DEC)) {
+			if (decrementer_check_overflow()) {
+				local_paca->irq_happened |= PACA_IRQ_DEC;
+				happened |= PACA_IRQ_DEC;
+			}
+		}
+	}
 
 	/*
 	 * Force the delivery of pending soft-disabled interrupts on PS3.
@@ -170,7 +183,7 @@ notrace unsigned int __check_irq_replay(void)
 	 * in case we also had a rollover while hard disabled
 	 */
 	local_paca->irq_happened &= ~PACA_IRQ_DEC;
-	if ((happened & PACA_IRQ_DEC) || decrementer_check_overflow())
+	if (happened & PACA_IRQ_DEC)
 		return 0x900;
 
 	/* Finally check if an external interrupt happened */
diff --git a/arch/powerpc/kernel/kvm.c b/arch/powerpc/kernel/kvm.c
index 9ad37f827a97..1086ea37c832 100644
--- a/arch/powerpc/kernel/kvm.c
+++ b/arch/powerpc/kernel/kvm.c
@@ -25,6 +25,7 @@
 #include <linux/kvm_para.h>
 #include <linux/slab.h>
 #include <linux/of.h>
+#include <linux/nmi.h> /* hardlockup_detector_disable() */
 
 #include <asm/reg.h>
 #include <asm/sections.h>
@@ -718,6 +719,12 @@ static __init void kvm_free_tmp(void)
 
 static int __init kvm_guest_init(void)
 {
+	/*
+	 * The hardlockup detector is likely to get false positives in
+	 * KVM guests, so disable it by default.
+	 */
+	hardlockup_detector_disable();
+
 	if (!kvm_para_available())
 		goto free_tmp;
 
diff --git a/arch/powerpc/kernel/mce_power.c b/arch/powerpc/kernel/mce_power.c
index d24e689e893f..b76ca198e09c 100644
--- a/arch/powerpc/kernel/mce_power.c
+++ b/arch/powerpc/kernel/mce_power.c
@@ -53,6 +53,60 @@ static void flush_tlb_206(unsigned int num_sets, unsigned int action)
 	asm volatile("ptesync" : : : "memory");
 }
 
+static void flush_tlb_300(unsigned int num_sets, unsigned int action)
+{
+	unsigned long rb;
+	unsigned int i;
+	unsigned int r;
+
+	switch (action) {
+	case TLB_INVAL_SCOPE_GLOBAL:
+		rb = TLBIEL_INVAL_SET;
+		break;
+	case TLB_INVAL_SCOPE_LPID:
+		rb = TLBIEL_INVAL_SET_LPID;
+		break;
+	default:
+		BUG();
+		break;
+	}
+
+	asm volatile("ptesync" : : : "memory");
+
+	if (early_radix_enabled())
+		r = 1;
+	else
+		r = 0;
+
+	/*
+	 * First flush table/PWC caches with set 0, then flush the
+	 * rest of the sets, partition scope. Radix must then do it
+	 * all again with process scope. Hash just has to flush
+	 * process table.
+	 */
+	asm volatile(PPC_TLBIEL(%0, %1, %2, %3, %4) : :
+			"r"(rb), "r"(0), "i"(2), "i"(0), "r"(r));
+	for (i = 1; i < num_sets; i++) {
+		unsigned long set = i * (1<<TLBIEL_INVAL_SET_SHIFT);
+
+		asm volatile(PPC_TLBIEL(%0, %1, %2, %3, %4) : :
+				"r"(rb+set), "r"(0), "i"(2), "i"(0), "r"(r));
+	}
+
+	asm volatile(PPC_TLBIEL(%0, %1, %2, %3, %4) : :
+			"r"(rb), "r"(0), "i"(2), "i"(1), "r"(r));
+	if (early_radix_enabled()) {
+		for (i = 1; i < num_sets; i++) {
+			unsigned long set = i * (1<<TLBIEL_INVAL_SET_SHIFT);
+
+			asm volatile(PPC_TLBIEL(%0, %1, %2, %3, %4) : :
+				"r"(rb+set), "r"(0), "i"(2), "i"(1), "r"(r));
+		}
+	}
+
+	asm volatile("ptesync" : : : "memory");
+}
+
 /*
  * Generic routines to flush TLB on POWER processors. These routines
  * are used as flush_tlb hook in the cpu_spec.
@@ -79,7 +133,7 @@ void __flush_tlb_power9(unsigned int action)
 	else
 		num_sets = POWER9_TLB_SETS_HASH;
 
-	flush_tlb_206(num_sets, action);
+	flush_tlb_300(num_sets, action);
 }
 
 
diff --git a/arch/powerpc/kernel/misc_64.S b/arch/powerpc/kernel/misc_64.S
index c119044cad0d..8ac0bd2bddb0 100644
--- a/arch/powerpc/kernel/misc_64.S
+++ b/arch/powerpc/kernel/misc_64.S
@@ -614,6 +614,18 @@ _GLOBAL(kexec_sequence)
 	li	r0,0
 	std	r0,16(r1)
 
+BEGIN_FTR_SECTION
+	/*
+	 * This is the best time to turn AMR/IAMR off.
+	 * key 0 is used in radix for supervisor<->user
+	 * protection, but on hash key 0 is reserved
+	 * ideally we want to enter with a clean state.
+	 * NOTE, we rely on r0 being 0 from above.
+	 */
+	mtspr	SPRN_IAMR,r0
+	mtspr	SPRN_AMOR,r0
+END_FTR_SECTION_IFSET(CPU_FTR_ARCH_300)
+
 	/* save regs for local vars on new stack.
 	 * yes, we won't go back, but ...
 	 */
diff --git a/arch/powerpc/kernel/process.c b/arch/powerpc/kernel/process.c
index 9f3e2c932dcc..1f0fd361e09b 100644
--- a/arch/powerpc/kernel/process.c
+++ b/arch/powerpc/kernel/process.c
@@ -362,7 +362,8 @@ void enable_kernel_vsx(void)
 
 	cpumsr = msr_check_and_set(MSR_FP|MSR_VEC|MSR_VSX);
 
-	if (current->thread.regs && (current->thread.regs->msr & MSR_VSX)) {
+	if (current->thread.regs &&
+	    (current->thread.regs->msr & (MSR_VSX|MSR_VEC|MSR_FP))) {
 		check_if_tm_restore_required(current);
 		/*
 		 * If a thread has already been reclaimed then the
@@ -386,7 +387,7 @@ void flush_vsx_to_thread(struct task_struct *tsk)
 {
 	if (tsk->thread.regs) {
 		preempt_disable();
-		if (tsk->thread.regs->msr & MSR_VSX) {
+		if (tsk->thread.regs->msr & (MSR_VSX|MSR_VEC|MSR_FP)) {
 			BUG_ON(tsk != current);
 			giveup_vsx(tsk);
 		}
@@ -511,10 +512,6 @@ void restore_math(struct pt_regs *regs)
 {
 	unsigned long msr;
 
-	/*
-	 * Syscall exit makes a similar initial check before branching
-	 * to restore_math. Keep them in synch.
-	 */
 	if (!msr_tm_active(regs->msr) &&
 		!current->thread.load_fp && !loadvec(current->thread))
 		return;
diff --git a/arch/powerpc/kernel/prom_init.c b/arch/powerpc/kernel/prom_init.c
index dd8a04f3053a..613f79f03877 100644
--- a/arch/powerpc/kernel/prom_init.c
+++ b/arch/powerpc/kernel/prom_init.c
@@ -15,6 +15,9 @@
 
 #undef DEBUG_PROM
 
+/* we cannot use FORTIFY as it brings in new symbols */
+#define __NO_FORTIFY
+
 #include <stdarg.h>
 #include <linux/kernel.h>
 #include <linux/string.h>
diff --git a/arch/powerpc/kernel/ptrace.c b/arch/powerpc/kernel/ptrace.c
index 925a4ef90559..660ed39e9c9a 100644
--- a/arch/powerpc/kernel/ptrace.c
+++ b/arch/powerpc/kernel/ptrace.c
@@ -127,12 +127,19 @@ static void flush_tmregs_to_thread(struct task_struct *tsk)
 	 * If task is not current, it will have been flushed already to
 	 * it's thread_struct during __switch_to().
 	 *
-	 * A reclaim flushes ALL the state.
+	 * A reclaim flushes ALL the state or if not in TM save TM SPRs
+	 * in the appropriate thread structures from live.
 	 */
 
-	if (tsk == current && MSR_TM_SUSPENDED(mfmsr()))
-		tm_reclaim_current(TM_CAUSE_SIGNAL);
+	if (tsk != current)
+		return;
 
+	if (MSR_TM_SUSPENDED(mfmsr())) {
+		tm_reclaim_current(TM_CAUSE_SIGNAL);
+	} else {
+		tm_enable();
+		tm_save_sprs(&(tsk->thread));
+	}
 }
 #else
 static inline void flush_tmregs_to_thread(struct task_struct *tsk) { }
diff --git a/arch/powerpc/kernel/setup_64.c b/arch/powerpc/kernel/setup_64.c
index 4640f6d64f8b..af23d4b576ec 100644
--- a/arch/powerpc/kernel/setup_64.c
+++ b/arch/powerpc/kernel/setup_64.c
@@ -751,22 +751,3 @@ unsigned long memory_block_size_bytes(void)
 struct ppc_pci_io ppc_pci_io;
 EXPORT_SYMBOL(ppc_pci_io);
 #endif
-
-#ifdef CONFIG_HARDLOCKUP_DETECTOR
-u64 hw_nmi_get_sample_period(int watchdog_thresh)
-{
-	return ppc_proc_freq * watchdog_thresh;
-}
-
-/*
- * The hardlockup detector breaks PMU event based branches and is likely
- * to get false positives in KVM guests, so disable it by default.
- */
-static int __init disable_hardlockup_detector(void)
-{
-	hardlockup_detector_disable();
-
-	return 0;
-}
-early_initcall(disable_hardlockup_detector);
-#endif
diff --git a/arch/powerpc/kernel/smp.c b/arch/powerpc/kernel/smp.c
index c6b8bace1766..8d3320562c70 100644
--- a/arch/powerpc/kernel/smp.c
+++ b/arch/powerpc/kernel/smp.c
@@ -351,7 +351,7 @@ static void nmi_ipi_lock_start(unsigned long *flags)
 	hard_irq_disable();
 	while (atomic_cmpxchg(&__nmi_ipi_lock, 0, 1) == 1) {
 		raw_local_irq_restore(*flags);
-		cpu_relax();
+		spin_until_cond(atomic_read(&__nmi_ipi_lock) == 0);
 		raw_local_irq_save(*flags);
 		hard_irq_disable();
 	}
@@ -360,7 +360,7 @@ static void nmi_ipi_lock_start(unsigned long *flags)
 static void nmi_ipi_lock(void)
 {
 	while (atomic_cmpxchg(&__nmi_ipi_lock, 0, 1) == 1)
-		cpu_relax();
+		spin_until_cond(atomic_read(&__nmi_ipi_lock) == 0);
 }
 
 static void nmi_ipi_unlock(void)
@@ -435,13 +435,31 @@ static void do_smp_send_nmi_ipi(int cpu)
 	}
 }
 
+void smp_flush_nmi_ipi(u64 delay_us)
+{
+	unsigned long flags;
+
+	nmi_ipi_lock_start(&flags);
+	while (nmi_ipi_busy_count) {
+		nmi_ipi_unlock_end(&flags);
+		udelay(1);
+		if (delay_us) {
+			delay_us--;
+			if (!delay_us)
+				return;
+		}
+		nmi_ipi_lock_start(&flags);
+	}
+	nmi_ipi_unlock_end(&flags);
+}
+
 /*
  * - cpu is the target CPU (must not be this CPU), or NMI_IPI_ALL_OTHERS.
  * - fn is the target callback function.
  * - delay_us > 0 is the delay before giving up waiting for targets to
  *   enter the handler, == 0 specifies indefinite delay.
  */
-static int smp_send_nmi_ipi(int cpu, void (*fn)(struct pt_regs *), u64 delay_us)
+int smp_send_nmi_ipi(int cpu, void (*fn)(struct pt_regs *), u64 delay_us)
 {
 	unsigned long flags;
 	int me = raw_smp_processor_id();
@@ -457,7 +475,7 @@ static int smp_send_nmi_ipi(int cpu, void (*fn)(struct pt_regs *), u64 delay_us)
 	nmi_ipi_lock_start(&flags);
 	while (nmi_ipi_busy_count) {
 		nmi_ipi_unlock_end(&flags);
-		cpu_relax();
+		spin_until_cond(nmi_ipi_busy_count == 0);
 		nmi_ipi_lock_start(&flags);
 	}
 
@@ -985,21 +1003,13 @@ static struct sched_domain_topology_level powerpc_topology[] = {
 	{ NULL, },
 };
 
-static __init long smp_setup_cpu_workfn(void *data __always_unused)
-{
-	smp_ops->setup_cpu(boot_cpuid);
-	return 0;
-}
-
 void __init smp_cpus_done(unsigned int max_cpus)
 {
 	/*
-	 * We want the setup_cpu() here to be called on the boot CPU, but
-	 * init might run on any CPU, so make sure it's invoked on the boot
-	 * CPU.
+	 * We are running pinned to the boot CPU, see rest_init().
 	 */
 	if (smp_ops && smp_ops->setup_cpu)
-		work_on_cpu_safe(boot_cpuid, smp_setup_cpu_workfn, NULL);
+		smp_ops->setup_cpu(boot_cpuid);
 
 	if (smp_ops && smp_ops->bringup_done)
 		smp_ops->bringup_done();
diff --git a/arch/powerpc/kernel/watchdog.c b/arch/powerpc/kernel/watchdog.c
new file mode 100644
index 000000000000..34721a257a77
--- /dev/null
+++ b/arch/powerpc/kernel/watchdog.c
@@ -0,0 +1,409 @@
+/*
+ * Watchdog support on powerpc systems.
+ *
+ * Copyright 2017, IBM Corporation.
+ *
+ * This uses code from arch/sparc/kernel/nmi.c and kernel/watchdog.c
+ */
+#include <linux/kernel.h>
+#include <linux/param.h>
+#include <linux/init.h>
+#include <linux/percpu.h>
+#include <linux/cpu.h>
+#include <linux/nmi.h>
+#include <linux/module.h>
+#include <linux/export.h>
+#include <linux/kprobes.h>
+#include <linux/hardirq.h>
+#include <linux/reboot.h>
+#include <linux/slab.h>
+#include <linux/kdebug.h>
+#include <linux/sched/debug.h>
+#include <linux/delay.h>
+#include <linux/smp.h>
+
+#include <asm/paca.h>
+
+/*
+ * The watchdog has a simple timer that runs on each CPU, once per timer
+ * period. This is the heartbeat.
+ *
+ * Then there are checks to see if the heartbeat has not triggered on a CPU
+ * for the panic timeout period. Currently the watchdog only supports an
+ * SMP check, so the heartbeat only turns on when we have 2 or more CPUs.
+ *
+ * This is not an NMI watchdog, but Linux uses that name for a generic
+ * watchdog in some cases, so NMI gets used in some places.
+ */
+
+static cpumask_t wd_cpus_enabled __read_mostly;
+
+static u64 wd_panic_timeout_tb __read_mostly; /* timebase ticks until panic */
+static u64 wd_smp_panic_timeout_tb __read_mostly; /* panic other CPUs */
+
+static u64 wd_timer_period_ms __read_mostly;  /* interval between heartbeat */
+
+static DEFINE_PER_CPU(struct timer_list, wd_timer);
+static DEFINE_PER_CPU(u64, wd_timer_tb);
+
+/*
+ * These are for the SMP checker. CPUs clear their pending bit in their
+ * heartbeat. If the bitmask becomes empty, the time is noted and the
+ * bitmask is refilled.
+ *
+ * All CPUs clear their bit in the pending mask every timer period.
+ * Once all have cleared, the time is noted and the bits are reset.
+ * If the time since all clear was greater than the panic timeout,
+ * we can panic with the list of stuck CPUs.
+ *
+ * This will work best with NMI IPIs for crash code so the stuck CPUs
+ * can be pulled out to get their backtraces.
+ */
+static unsigned long __wd_smp_lock;
+static cpumask_t wd_smp_cpus_pending;
+static cpumask_t wd_smp_cpus_stuck;
+static u64 wd_smp_last_reset_tb;
+
+static inline void wd_smp_lock(unsigned long *flags)
+{
+	/*
+	 * Avoid locking layers if possible.
+	 * This may be called from low level interrupt handlers at some
+	 * point in future.
+	 */
+	raw_local_irq_save(*flags);
+	hard_irq_disable(); /* Make it soft-NMI safe */
+	while (unlikely(test_and_set_bit_lock(0, &__wd_smp_lock))) {
+		raw_local_irq_restore(*flags);
+		spin_until_cond(!test_bit(0, &__wd_smp_lock));
+		raw_local_irq_save(*flags);
+		hard_irq_disable();
+	}
+}
+
+static inline void wd_smp_unlock(unsigned long *flags)
+{
+	clear_bit_unlock(0, &__wd_smp_lock);
+	raw_local_irq_restore(*flags);
+}
+
+static void wd_lockup_ipi(struct pt_regs *regs)
+{
+	pr_emerg("Watchdog CPU:%d Hard LOCKUP\n", raw_smp_processor_id());
+	print_modules();
+	print_irqtrace_events(current);
+	if (regs)
+		show_regs(regs);
+	else
+		dump_stack();
+
+	if (hardlockup_panic)
+		nmi_panic(regs, "Hard LOCKUP");
+}
+
+static void set_cpumask_stuck(const struct cpumask *cpumask, u64 tb)
+{
+	cpumask_or(&wd_smp_cpus_stuck, &wd_smp_cpus_stuck, cpumask);
+	cpumask_andnot(&wd_smp_cpus_pending, &wd_smp_cpus_pending, cpumask);
+	if (cpumask_empty(&wd_smp_cpus_pending)) {
+		wd_smp_last_reset_tb = tb;
+		cpumask_andnot(&wd_smp_cpus_pending,
+				&wd_cpus_enabled,
+				&wd_smp_cpus_stuck);
+	}
+}
+static void set_cpu_stuck(int cpu, u64 tb)
+{
+	set_cpumask_stuck(cpumask_of(cpu), tb);
+}
+
+static void watchdog_smp_panic(int cpu, u64 tb)
+{
+	unsigned long flags;
+	int c;
+
+	wd_smp_lock(&flags);
+	/* Double check some things under lock */
+	if ((s64)(tb - wd_smp_last_reset_tb) < (s64)wd_smp_panic_timeout_tb)
+		goto out;
+	if (cpumask_test_cpu(cpu, &wd_smp_cpus_pending))
+		goto out;
+	if (cpumask_weight(&wd_smp_cpus_pending) == 0)
+		goto out;
+
+	pr_emerg("Watchdog CPU:%d detected Hard LOCKUP other CPUS:%*pbl\n",
+			cpu, cpumask_pr_args(&wd_smp_cpus_pending));
+
+	/*
+	 * Try to trigger the stuck CPUs.
+	 */
+	for_each_cpu(c, &wd_smp_cpus_pending) {
+		if (c == cpu)
+			continue;
+		smp_send_nmi_ipi(c, wd_lockup_ipi, 1000000);
+	}
+	smp_flush_nmi_ipi(1000000);
+
+	/* Take the stuck CPUs out of the watch group */
+	set_cpumask_stuck(&wd_smp_cpus_pending, tb);
+
+	wd_smp_unlock(&flags);
+
+	printk_safe_flush();
+	/*
+	 * printk_safe_flush() seems to require another print
+	 * before anything actually goes out to console.
+	 */
+	if (sysctl_hardlockup_all_cpu_backtrace)
+		trigger_allbutself_cpu_backtrace();
+
+	if (hardlockup_panic)
+		nmi_panic(NULL, "Hard LOCKUP");
+
+	return;
+
+out:
+	wd_smp_unlock(&flags);
+}
+
+static void wd_smp_clear_cpu_pending(int cpu, u64 tb)
+{
+	if (!cpumask_test_cpu(cpu, &wd_smp_cpus_pending)) {
+		if (unlikely(cpumask_test_cpu(cpu, &wd_smp_cpus_stuck))) {
+			unsigned long flags;
+
+			pr_emerg("Watchdog CPU:%d became unstuck\n", cpu);
+			wd_smp_lock(&flags);
+			cpumask_clear_cpu(cpu, &wd_smp_cpus_stuck);
+			wd_smp_unlock(&flags);
+		}
+		return;
+	}
+	cpumask_clear_cpu(cpu, &wd_smp_cpus_pending);
+	if (cpumask_empty(&wd_smp_cpus_pending)) {
+		unsigned long flags;
+
+		wd_smp_lock(&flags);
+		if (cpumask_empty(&wd_smp_cpus_pending)) {
+			wd_smp_last_reset_tb = tb;
+			cpumask_andnot(&wd_smp_cpus_pending,
+					&wd_cpus_enabled,
+					&wd_smp_cpus_stuck);
+		}
+		wd_smp_unlock(&flags);
+	}
+}
+
+static void watchdog_timer_interrupt(int cpu)
+{
+	u64 tb = get_tb();
+
+	per_cpu(wd_timer_tb, cpu) = tb;
+
+	wd_smp_clear_cpu_pending(cpu, tb);
+
+	if ((s64)(tb - wd_smp_last_reset_tb) >= (s64)wd_smp_panic_timeout_tb)
+		watchdog_smp_panic(cpu, tb);
+}
+
+void soft_nmi_interrupt(struct pt_regs *regs)
+{
+	unsigned long flags;
+	int cpu = raw_smp_processor_id();
+	u64 tb;
+
+	if (!cpumask_test_cpu(cpu, &wd_cpus_enabled))
+		return;
+
+	nmi_enter();
+	tb = get_tb();
+	if (tb - per_cpu(wd_timer_tb, cpu) >= wd_panic_timeout_tb) {
+		per_cpu(wd_timer_tb, cpu) = tb;
+
+		wd_smp_lock(&flags);
+		if (cpumask_test_cpu(cpu, &wd_smp_cpus_stuck)) {
+			wd_smp_unlock(&flags);
+			goto out;
+		}
+		set_cpu_stuck(cpu, tb);
+
+		pr_emerg("Watchdog CPU:%d Hard LOCKUP\n", cpu);
+		print_modules();
+		print_irqtrace_events(current);
+		if (regs)
+			show_regs(regs);
+		else
+			dump_stack();
+
+		wd_smp_unlock(&flags);
+
+		if (sysctl_hardlockup_all_cpu_backtrace)
+			trigger_allbutself_cpu_backtrace();
+
+		if (hardlockup_panic)
+			nmi_panic(regs, "Hard LOCKUP");
+	}
+	if (wd_panic_timeout_tb < 0x7fffffff)
+		mtspr(SPRN_DEC, wd_panic_timeout_tb);
+
+out:
+	nmi_exit();
+}
+
+static void wd_timer_reset(unsigned int cpu, struct timer_list *t)
+{
+	t->expires = jiffies + msecs_to_jiffies(wd_timer_period_ms);
+	if (wd_timer_period_ms > 1000)
+		t->expires = __round_jiffies_up(t->expires, cpu);
+	add_timer_on(t, cpu);
+}
+
+static void wd_timer_fn(unsigned long data)
+{
+	struct timer_list *t = this_cpu_ptr(&wd_timer);
+	int cpu = smp_processor_id();
+
+	watchdog_timer_interrupt(cpu);
+
+	wd_timer_reset(cpu, t);
+}
+
+void arch_touch_nmi_watchdog(void)
+{
+	unsigned long ticks = tb_ticks_per_usec * wd_timer_period_ms * 1000;
+	int cpu = smp_processor_id();
+
+	if (get_tb() - per_cpu(wd_timer_tb, cpu) >= ticks)
+		watchdog_timer_interrupt(cpu);
+}
+EXPORT_SYMBOL(arch_touch_nmi_watchdog);
+
+static void start_watchdog_timer_on(unsigned int cpu)
+{
+	struct timer_list *t = per_cpu_ptr(&wd_timer, cpu);
+
+	per_cpu(wd_timer_tb, cpu) = get_tb();
+
+	setup_pinned_timer(t, wd_timer_fn, 0);
+	wd_timer_reset(cpu, t);
+}
+
+static void stop_watchdog_timer_on(unsigned int cpu)
+{
+	struct timer_list *t = per_cpu_ptr(&wd_timer, cpu);
+
+	del_timer_sync(t);
+}
+
+static int start_wd_on_cpu(unsigned int cpu)
+{
+	unsigned long flags;
+
+	if (cpumask_test_cpu(cpu, &wd_cpus_enabled)) {
+		WARN_ON(1);
+		return 0;
+	}
+
+	if (!(watchdog_enabled & NMI_WATCHDOG_ENABLED))
+		return 0;
+
+	if (watchdog_suspended)
+		return 0;
+
+	if (!cpumask_test_cpu(cpu, &watchdog_cpumask))
+		return 0;
+
+	wd_smp_lock(&flags);
+	cpumask_set_cpu(cpu, &wd_cpus_enabled);
+	if (cpumask_weight(&wd_cpus_enabled) == 1) {
+		cpumask_set_cpu(cpu, &wd_smp_cpus_pending);
+		wd_smp_last_reset_tb = get_tb();
+	}
+	wd_smp_unlock(&flags);
+
+	start_watchdog_timer_on(cpu);
+
+	return 0;
+}
+
+static int stop_wd_on_cpu(unsigned int cpu)
+{
+	unsigned long flags;
+
+	if (!cpumask_test_cpu(cpu, &wd_cpus_enabled))
+		return 0; /* Can happen in CPU unplug case */
+
+	stop_watchdog_timer_on(cpu);
+
+	wd_smp_lock(&flags);
+	cpumask_clear_cpu(cpu, &wd_cpus_enabled);
+	wd_smp_unlock(&flags);
+
+	wd_smp_clear_cpu_pending(cpu, get_tb());
+
+	return 0;
+}
+
+static void watchdog_calc_timeouts(void)
+{
+	wd_panic_timeout_tb = watchdog_thresh * ppc_tb_freq;
+
+	/* Have the SMP detector trigger a bit later */
+	wd_smp_panic_timeout_tb = wd_panic_timeout_tb * 3 / 2;
+
+	/* 2/5 is the factor that the perf based detector uses */
+	wd_timer_period_ms = watchdog_thresh * 1000 * 2 / 5;
+}
+
+void watchdog_nmi_reconfigure(void)
+{
+	int cpu;
+
+	watchdog_calc_timeouts();
+
+	for_each_cpu(cpu, &wd_cpus_enabled)
+		stop_wd_on_cpu(cpu);
+
+	for_each_cpu_and(cpu, cpu_online_mask, &watchdog_cpumask)
+		start_wd_on_cpu(cpu);
+}
+
+/*
+ * This runs after lockup_detector_init() which sets up watchdog_cpumask.
+ */
+static int __init powerpc_watchdog_init(void)
+{
+	int err;
+
+	watchdog_calc_timeouts();
+
+	err = cpuhp_setup_state(CPUHP_AP_ONLINE_DYN, "powerpc/watchdog:online",
+				start_wd_on_cpu, stop_wd_on_cpu);
+	if (err < 0)
+		pr_warn("Watchdog could not be initialized");
+
+	return 0;
+}
+arch_initcall(powerpc_watchdog_init);
+
+static void handle_backtrace_ipi(struct pt_regs *regs)
+{
+	nmi_cpu_backtrace(regs);
+}
+
+static void raise_backtrace_ipi(cpumask_t *mask)
+{
+	unsigned int cpu;
+
+	for_each_cpu(cpu, mask) {
+		if (cpu == smp_processor_id())
+			handle_backtrace_ipi(NULL);
+		else
+			smp_send_nmi_ipi(cpu, handle_backtrace_ipi, 1000000);
+	}
+}
+
+void arch_trigger_cpumask_backtrace(const cpumask_t *mask, bool exclude_self)
+{
+	nmi_trigger_cpumask_backtrace(mask, exclude_self, raise_backtrace_ipi);
+}
diff --git a/arch/powerpc/kvm/book3s_64_mmu_hv.c b/arch/powerpc/kvm/book3s_64_mmu_hv.c
index 710e491206ed..b42812e014c0 100644
--- a/arch/powerpc/kvm/book3s_64_mmu_hv.c
+++ b/arch/powerpc/kvm/book3s_64_mmu_hv.c
@@ -93,7 +93,7 @@ int kvmppc_allocate_hpt(struct kvm_hpt_info *info, u32 order)
 	}
 
 	if (!hpt)
-		hpt = __get_free_pages(GFP_KERNEL|__GFP_ZERO|__GFP_REPEAT
+		hpt = __get_free_pages(GFP_KERNEL|__GFP_ZERO|__GFP_RETRY_MAYFAIL
 				       |__GFP_NOWARN, order - PAGE_SHIFT);
 
 	if (!hpt)
@@ -164,8 +164,10 @@ long kvmppc_alloc_reset_hpt(struct kvm *kvm, int order)
 		goto out;
 	}
 
-	if (kvm->arch.hpt.virt)
+	if (kvm->arch.hpt.virt) {
 		kvmppc_free_hpt(&kvm->arch.hpt);
+		kvmppc_rmap_reset(kvm);
+	}
 
 	err = kvmppc_allocate_hpt(&info, order);
 	if (err < 0)
diff --git a/arch/powerpc/kvm/book3s_hv.c b/arch/powerpc/kvm/book3s_hv.c
index 0b436df746fc..359c79cdf0cc 100644
--- a/arch/powerpc/kvm/book3s_hv.c
+++ b/arch/powerpc/kvm/book3s_hv.c
@@ -3211,6 +3211,8 @@ static int kvmppc_vcpu_run_hv(struct kvm_run *run, struct kvm_vcpu *vcpu)
 			run->fail_entry.hardware_entry_failure_reason = 0;
 			return -EINVAL;
 		}
+		/* Enable TM so we can read the TM SPRs */
+		mtmsr(mfmsr() | MSR_TM);
 		current->thread.tm_tfhar = mfspr(SPRN_TFHAR);
 		current->thread.tm_tfiar = mfspr(SPRN_TFIAR);
 		current->thread.tm_texasr = mfspr(SPRN_TEXASR);
diff --git a/arch/powerpc/kvm/book3s_hv_rmhandlers.S b/arch/powerpc/kvm/book3s_hv_rmhandlers.S
index cb44065e2946..c52184a8efdf 100644
--- a/arch/powerpc/kvm/book3s_hv_rmhandlers.S
+++ b/arch/powerpc/kvm/book3s_hv_rmhandlers.S
@@ -1443,12 +1443,14 @@ mc_cont:
 	ori	r6,r6,1
 	mtspr	SPRN_CTRLT,r6
 4:
-	/* Read the guest SLB and save it away */
+	/* Check if we are running hash or radix and store it in cr2 */
 	ld	r5, VCPU_KVM(r9)
 	lbz	r0, KVM_RADIX(r5)
-	cmpwi	r0, 0
+	cmpwi	cr2,r0,0
+
+	/* Read the guest SLB and save it away */
 	li	r5, 0
-	bne	3f			/* for radix, save 0 entries */
+	bne	cr2, 3f			/* for radix, save 0 entries */
 	lwz	r0,VCPU_SLB_NR(r9)	/* number of entries in SLB */
 	mtctr	r0
 	li	r6,0
@@ -1712,11 +1714,6 @@ BEGIN_FTR_SECTION_NESTED(96)
 END_FTR_SECTION_NESTED(CPU_FTR_ARCH_300, 0, 96)
 END_FTR_SECTION_IFSET(CPU_FTR_ARCH_207S)
 22:
-	/* Clear out SLB */
-	li	r5,0
-	slbmte	r5,r5
-	slbia
-	ptesync
 
 	/* Restore host values of some registers */
 BEGIN_FTR_SECTION
@@ -1737,10 +1734,56 @@ BEGIN_FTR_SECTION
 	mtspr	SPRN_PID, r7
 	mtspr	SPRN_IAMR, r8
 END_FTR_SECTION_IFSET(CPU_FTR_ARCH_300)
+
+#ifdef CONFIG_PPC_RADIX_MMU
+	/*
+	 * Are we running hash or radix ?
+	 */
+	beq	cr2,3f
+
+	/* Radix: Handle the case where the guest used an illegal PID */
+	LOAD_REG_ADDR(r4, mmu_base_pid)
+	lwz	r3, VCPU_GUEST_PID(r9)
+	lwz	r5, 0(r4)
+	cmpw	cr0,r3,r5
+	blt	2f
+
+	/*
+	 * Illegal PID, the HW might have prefetched and cached in the TLB
+	 * some translations for the  LPID 0 / guest PID combination which
+	 * Linux doesn't know about, so we need to flush that PID out of
+	 * the TLB. First we need to set LPIDR to 0 so tlbiel applies to
+	 * the right context.
+	*/
+	li	r0,0
+	mtspr	SPRN_LPID,r0
+	isync
+
+	/* Then do a congruence class local flush */
+	ld	r6,VCPU_KVM(r9)
+	lwz	r0,KVM_TLB_SETS(r6)
+	mtctr	r0
+	li	r7,0x400		/* IS field = 0b01 */
+	ptesync
+	sldi	r0,r3,32		/* RS has PID */
+1:	PPC_TLBIEL(7,0,2,1,1)		/* RIC=2, PRS=1, R=1 */
+	addi	r7,r7,0x1000
+	bdnz	1b
+	ptesync
+
+2:	/* Flush the ERAT on radix P9 DD1 guest exit */
 BEGIN_FTR_SECTION
 	PPC_INVALIDATE_ERAT
 END_FTR_SECTION_IFSET(CPU_FTR_POWER9_DD1)
+	b	4f
+#endif /* CONFIG_PPC_RADIX_MMU */
 
+	/* Hash: clear out SLB */
+3:	li	r5,0
+	slbmte	r5,r5
+	slbia
+	ptesync
+4:
 	/*
 	 * POWER7/POWER8 guest -> host partition switch code.
 	 * We don't have to lock against tlbies but we do
diff --git a/arch/powerpc/lib/feature-fixups.c b/arch/powerpc/lib/feature-fixups.c
index f3917705c686..41cf5ae273cf 100644
--- a/arch/powerpc/lib/feature-fixups.c
+++ b/arch/powerpc/lib/feature-fixups.c
@@ -233,192 +233,192 @@ static long calc_offset(struct fixup_entry *entry, unsigned int *p)
 
 static void test_basic_patching(void)
 {
-	extern unsigned int ftr_fixup_test1;
-	extern unsigned int end_ftr_fixup_test1;
-	extern unsigned int ftr_fixup_test1_orig;
-	extern unsigned int ftr_fixup_test1_expected;
-	int size = &end_ftr_fixup_test1 - &ftr_fixup_test1;
+	extern unsigned int ftr_fixup_test1[];
+	extern unsigned int end_ftr_fixup_test1[];
+	extern unsigned int ftr_fixup_test1_orig[];
+	extern unsigned int ftr_fixup_test1_expected[];
+	int size = end_ftr_fixup_test1 - ftr_fixup_test1;
 
 	fixup.value = fixup.mask = 8;
-	fixup.start_off = calc_offset(&fixup, &ftr_fixup_test1 + 1);
-	fixup.end_off = calc_offset(&fixup, &ftr_fixup_test1 + 2);
+	fixup.start_off = calc_offset(&fixup, ftr_fixup_test1 + 1);
+	fixup.end_off = calc_offset(&fixup, ftr_fixup_test1 + 2);
 	fixup.alt_start_off = fixup.alt_end_off = 0;
 
 	/* Sanity check */
-	check(memcmp(&ftr_fixup_test1, &ftr_fixup_test1_orig, size) == 0);
+	check(memcmp(ftr_fixup_test1, ftr_fixup_test1_orig, size) == 0);
 
 	/* Check we don't patch if the value matches */
 	patch_feature_section(8, &fixup);
-	check(memcmp(&ftr_fixup_test1, &ftr_fixup_test1_orig, size) == 0);
+	check(memcmp(ftr_fixup_test1, ftr_fixup_test1_orig, size) == 0);
 
 	/* Check we do patch if the value doesn't match */
 	patch_feature_section(0, &fixup);
-	check(memcmp(&ftr_fixup_test1, &ftr_fixup_test1_expected, size) == 0);
+	check(memcmp(ftr_fixup_test1, ftr_fixup_test1_expected, size) == 0);
 
 	/* Check we do patch if the mask doesn't match */
-	memcpy(&ftr_fixup_test1, &ftr_fixup_test1_orig, size);
-	check(memcmp(&ftr_fixup_test1, &ftr_fixup_test1_orig, size) == 0);
+	memcpy(ftr_fixup_test1, ftr_fixup_test1_orig, size);
+	check(memcmp(ftr_fixup_test1, ftr_fixup_test1_orig, size) == 0);
 	patch_feature_section(~8, &fixup);
-	check(memcmp(&ftr_fixup_test1, &ftr_fixup_test1_expected, size) == 0);
+	check(memcmp(ftr_fixup_test1, ftr_fixup_test1_expected, size) == 0);
 }
 
 static void test_alternative_patching(void)
 {
-	extern unsigned int ftr_fixup_test2;
-	extern unsigned int end_ftr_fixup_test2;
-	extern unsigned int ftr_fixup_test2_orig;
-	extern unsigned int ftr_fixup_test2_alt;
-	extern unsigned int ftr_fixup_test2_expected;
-	int size = &end_ftr_fixup_test2 - &ftr_fixup_test2;
+	extern unsigned int ftr_fixup_test2[];
+	extern unsigned int end_ftr_fixup_test2[];
+	extern unsigned int ftr_fixup_test2_orig[];
+	extern unsigned int ftr_fixup_test2_alt[];
+	extern unsigned int ftr_fixup_test2_expected[];
+	int size = end_ftr_fixup_test2 - ftr_fixup_test2;
 
 	fixup.value = fixup.mask = 0xF;
-	fixup.start_off = calc_offset(&fixup, &ftr_fixup_test2 + 1);
-	fixup.end_off = calc_offset(&fixup, &ftr_fixup_test2 + 2);
-	fixup.alt_start_off = calc_offset(&fixup, &ftr_fixup_test2_alt);
-	fixup.alt_end_off = calc_offset(&fixup, &ftr_fixup_test2_alt + 1);
+	fixup.start_off = calc_offset(&fixup, ftr_fixup_test2 + 1);
+	fixup.end_off = calc_offset(&fixup, ftr_fixup_test2 + 2);
+	fixup.alt_start_off = calc_offset(&fixup, ftr_fixup_test2_alt);
+	fixup.alt_end_off = calc_offset(&fixup, ftr_fixup_test2_alt + 1);
 
 	/* Sanity check */
-	check(memcmp(&ftr_fixup_test2, &ftr_fixup_test2_orig, size) == 0);
+	check(memcmp(ftr_fixup_test2, ftr_fixup_test2_orig, size) == 0);
 
 	/* Check we don't patch if the value matches */
 	patch_feature_section(0xF, &fixup);
-	check(memcmp(&ftr_fixup_test2, &ftr_fixup_test2_orig, size) == 0);
+	check(memcmp(ftr_fixup_test2, ftr_fixup_test2_orig, size) == 0);
 
 	/* Check we do patch if the value doesn't match */
 	patch_feature_section(0, &fixup);
-	check(memcmp(&ftr_fixup_test2, &ftr_fixup_test2_expected, size) == 0);
+	check(memcmp(ftr_fixup_test2, ftr_fixup_test2_expected, size) == 0);
 
 	/* Check we do patch if the mask doesn't match */
-	memcpy(&ftr_fixup_test2, &ftr_fixup_test2_orig, size);
-	check(memcmp(&ftr_fixup_test2, &ftr_fixup_test2_orig, size) == 0);
+	memcpy(ftr_fixup_test2, ftr_fixup_test2_orig, size);
+	check(memcmp(ftr_fixup_test2, ftr_fixup_test2_orig, size) == 0);
 	patch_feature_section(~0xF, &fixup);
-	check(memcmp(&ftr_fixup_test2, &ftr_fixup_test2_expected, size) == 0);
+	check(memcmp(ftr_fixup_test2, ftr_fixup_test2_expected, size) == 0);
 }
 
 static void test_alternative_case_too_big(void)
 {
-	extern unsigned int ftr_fixup_test3;
-	extern unsigned int end_ftr_fixup_test3;
-	extern unsigned int ftr_fixup_test3_orig;
-	extern unsigned int ftr_fixup_test3_alt;
-	int size = &end_ftr_fixup_test3 - &ftr_fixup_test3;
+	extern unsigned int ftr_fixup_test3[];
+	extern unsigned int end_ftr_fixup_test3[];
+	extern unsigned int ftr_fixup_test3_orig[];
+	extern unsigned int ftr_fixup_test3_alt[];
+	int size = end_ftr_fixup_test3 - ftr_fixup_test3;
 
 	fixup.value = fixup.mask = 0xC;
-	fixup.start_off = calc_offset(&fixup, &ftr_fixup_test3 + 1);
-	fixup.end_off = calc_offset(&fixup, &ftr_fixup_test3 + 2);
-	fixup.alt_start_off = calc_offset(&fixup, &ftr_fixup_test3_alt);
-	fixup.alt_end_off = calc_offset(&fixup, &ftr_fixup_test3_alt + 2);
+	fixup.start_off = calc_offset(&fixup, ftr_fixup_test3 + 1);
+	fixup.end_off = calc_offset(&fixup, ftr_fixup_test3 + 2);
+	fixup.alt_start_off = calc_offset(&fixup, ftr_fixup_test3_alt);
+	fixup.alt_end_off = calc_offset(&fixup, ftr_fixup_test3_alt + 2);
 
 	/* Sanity check */
-	check(memcmp(&ftr_fixup_test3, &ftr_fixup_test3_orig, size) == 0);
+	check(memcmp(ftr_fixup_test3, ftr_fixup_test3_orig, size) == 0);
 
 	/* Expect nothing to be patched, and the error returned to us */
 	check(patch_feature_section(0xF, &fixup) == 1);
-	check(memcmp(&ftr_fixup_test3, &ftr_fixup_test3_orig, size) == 0);
+	check(memcmp(ftr_fixup_test3, ftr_fixup_test3_orig, size) == 0);
 	check(patch_feature_section(0, &fixup) == 1);
-	check(memcmp(&ftr_fixup_test3, &ftr_fixup_test3_orig, size) == 0);
+	check(memcmp(ftr_fixup_test3, ftr_fixup_test3_orig, size) == 0);
 	check(patch_feature_section(~0xF, &fixup) == 1);
-	check(memcmp(&ftr_fixup_test3, &ftr_fixup_test3_orig, size) == 0);
+	check(memcmp(ftr_fixup_test3, ftr_fixup_test3_orig, size) == 0);
 }
 
 static void test_alternative_case_too_small(void)
 {
-	extern unsigned int ftr_fixup_test4;
-	extern unsigned int end_ftr_fixup_test4;
-	extern unsigned int ftr_fixup_test4_orig;
-	extern unsigned int ftr_fixup_test4_alt;
-	extern unsigned int ftr_fixup_test4_expected;
-	int size = &end_ftr_fixup_test4 - &ftr_fixup_test4;
+	extern unsigned int ftr_fixup_test4[];
+	extern unsigned int end_ftr_fixup_test4[];
+	extern unsigned int ftr_fixup_test4_orig[];
+	extern unsigned int ftr_fixup_test4_alt[];
+	extern unsigned int ftr_fixup_test4_expected[];
+	int size = end_ftr_fixup_test4 - ftr_fixup_test4;
 	unsigned long flag;
 
 	/* Check a high-bit flag */
 	flag = 1UL << ((sizeof(unsigned long) - 1) * 8);
 	fixup.value = fixup.mask = flag;
-	fixup.start_off = calc_offset(&fixup, &ftr_fixup_test4 + 1);
-	fixup.end_off = calc_offset(&fixup, &ftr_fixup_test4 + 5);
-	fixup.alt_start_off = calc_offset(&fixup, &ftr_fixup_test4_alt);
-	fixup.alt_end_off = calc_offset(&fixup, &ftr_fixup_test4_alt + 2);
+	fixup.start_off = calc_offset(&fixup, ftr_fixup_test4 + 1);
+	fixup.end_off = calc_offset(&fixup, ftr_fixup_test4 + 5);
+	fixup.alt_start_off = calc_offset(&fixup, ftr_fixup_test4_alt);
+	fixup.alt_end_off = calc_offset(&fixup, ftr_fixup_test4_alt + 2);
 
 	/* Sanity check */
-	check(memcmp(&ftr_fixup_test4, &ftr_fixup_test4_orig, size) == 0);
+	check(memcmp(ftr_fixup_test4, ftr_fixup_test4_orig, size) == 0);
 
 	/* Check we don't patch if the value matches */
 	patch_feature_section(flag, &fixup);
-	check(memcmp(&ftr_fixup_test4, &ftr_fixup_test4_orig, size) == 0);
+	check(memcmp(ftr_fixup_test4, ftr_fixup_test4_orig, size) == 0);
 
 	/* Check we do patch if the value doesn't match */
 	patch_feature_section(0, &fixup);
-	check(memcmp(&ftr_fixup_test4, &ftr_fixup_test4_expected, size) == 0);
+	check(memcmp(ftr_fixup_test4, ftr_fixup_test4_expected, size) == 0);
 
 	/* Check we do patch if the mask doesn't match */
-	memcpy(&ftr_fixup_test4, &ftr_fixup_test4_orig, size);
-	check(memcmp(&ftr_fixup_test4, &ftr_fixup_test4_orig, size) == 0);
+	memcpy(ftr_fixup_test4, ftr_fixup_test4_orig, size);
+	check(memcmp(ftr_fixup_test4, ftr_fixup_test4_orig, size) == 0);
 	patch_feature_section(~flag, &fixup);
-	check(memcmp(&ftr_fixup_test4, &ftr_fixup_test4_expected, size) == 0);
+	check(memcmp(ftr_fixup_test4, ftr_fixup_test4_expected, size) == 0);
 }
 
 static void test_alternative_case_with_branch(void)
 {
-	extern unsigned int ftr_fixup_test5;
-	extern unsigned int end_ftr_fixup_test5;
-	extern unsigned int ftr_fixup_test5_expected;
-	int size = &end_ftr_fixup_test5 - &ftr_fixup_test5;
+	extern unsigned int ftr_fixup_test5[];
+	extern unsigned int end_ftr_fixup_test5[];
+	extern unsigned int ftr_fixup_test5_expected[];
+	int size = end_ftr_fixup_test5 - ftr_fixup_test5;
 
-	check(memcmp(&ftr_fixup_test5, &ftr_fixup_test5_expected, size) == 0);
+	check(memcmp(ftr_fixup_test5, ftr_fixup_test5_expected, size) == 0);
 }
 
 static void test_alternative_case_with_external_branch(void)
 {
-	extern unsigned int ftr_fixup_test6;
-	extern unsigned int end_ftr_fixup_test6;
-	extern unsigned int ftr_fixup_test6_expected;
-	int size = &end_ftr_fixup_test6 - &ftr_fixup_test6;
+	extern unsigned int ftr_fixup_test6[];
+	extern unsigned int end_ftr_fixup_test6[];
+	extern unsigned int ftr_fixup_test6_expected[];
+	int size = end_ftr_fixup_test6 - ftr_fixup_test6;
 
-	check(memcmp(&ftr_fixup_test6, &ftr_fixup_test6_expected, size) == 0);
+	check(memcmp(ftr_fixup_test6, ftr_fixup_test6_expected, size) == 0);
 }
 
 static void test_cpu_macros(void)
 {
-	extern u8 ftr_fixup_test_FTR_macros;
-	extern u8 ftr_fixup_test_FTR_macros_expected;
-	unsigned long size = &ftr_fixup_test_FTR_macros_expected -
-			     &ftr_fixup_test_FTR_macros;
+	extern u8 ftr_fixup_test_FTR_macros[];
+	extern u8 ftr_fixup_test_FTR_macros_expected[];
+	unsigned long size = ftr_fixup_test_FTR_macros_expected -
+			     ftr_fixup_test_FTR_macros;
 
 	/* The fixups have already been done for us during boot */
-	check(memcmp(&ftr_fixup_test_FTR_macros,
-		     &ftr_fixup_test_FTR_macros_expected, size) == 0);
+	check(memcmp(ftr_fixup_test_FTR_macros,
+		     ftr_fixup_test_FTR_macros_expected, size) == 0);
 }
 
 static void test_fw_macros(void)
 {
 #ifdef CONFIG_PPC64
-	extern u8 ftr_fixup_test_FW_FTR_macros;
-	extern u8 ftr_fixup_test_FW_FTR_macros_expected;
-	unsigned long size = &ftr_fixup_test_FW_FTR_macros_expected -
-			     &ftr_fixup_test_FW_FTR_macros;
+	extern u8 ftr_fixup_test_FW_FTR_macros[];
+	extern u8 ftr_fixup_test_FW_FTR_macros_expected[];
+	unsigned long size = ftr_fixup_test_FW_FTR_macros_expected -
+			     ftr_fixup_test_FW_FTR_macros;
 
 	/* The fixups have already been done for us during boot */
-	check(memcmp(&ftr_fixup_test_FW_FTR_macros,
-		     &ftr_fixup_test_FW_FTR_macros_expected, size) == 0);
+	check(memcmp(ftr_fixup_test_FW_FTR_macros,
+		     ftr_fixup_test_FW_FTR_macros_expected, size) == 0);
 #endif
 }
 
 static void test_lwsync_macros(void)
 {
-	extern u8 lwsync_fixup_test;
-	extern u8 end_lwsync_fixup_test;
-	extern u8 lwsync_fixup_test_expected_LWSYNC;
-	extern u8 lwsync_fixup_test_expected_SYNC;
-	unsigned long size = &end_lwsync_fixup_test -
-			     &lwsync_fixup_test;
+	extern u8 lwsync_fixup_test[];
+	extern u8 end_lwsync_fixup_test[];
+	extern u8 lwsync_fixup_test_expected_LWSYNC[];
+	extern u8 lwsync_fixup_test_expected_SYNC[];
+	unsigned long size = end_lwsync_fixup_test -
+			     lwsync_fixup_test;
 
 	/* The fixups have already been done for us during boot */
 	if (cur_cpu_spec->cpu_features & CPU_FTR_LWSYNC) {
-		check(memcmp(&lwsync_fixup_test,
-			     &lwsync_fixup_test_expected_LWSYNC, size) == 0);
+		check(memcmp(lwsync_fixup_test,
+			     lwsync_fixup_test_expected_LWSYNC, size) == 0);
 	} else {
-		check(memcmp(&lwsync_fixup_test,
-			     &lwsync_fixup_test_expected_SYNC, size) == 0);
+		check(memcmp(lwsync_fixup_test,
+			     lwsync_fixup_test_expected_SYNC, size) == 0);
 	}
 }
 
diff --git a/arch/powerpc/lib/sstep.c b/arch/powerpc/lib/sstep.c
index 33117f8a0882..ee33327686ae 100644
--- a/arch/powerpc/lib/sstep.c
+++ b/arch/powerpc/lib/sstep.c
@@ -683,8 +683,10 @@ int analyse_instr(struct instruction_op *op, struct pt_regs *regs,
 	case 19:
 		switch ((instr >> 1) & 0x3ff) {
 		case 0:		/* mcrf */
-			rd = (instr >> 21) & 0x1c;
-			ra = (instr >> 16) & 0x1c;
+			rd = 7 - ((instr >> 23) & 0x7);
+			ra = 7 - ((instr >> 18) & 0x7);
+			rd *= 4;
+			ra *= 4;
 			val = (regs->ccr >> ra) & 0xf;
 			regs->ccr = (regs->ccr & ~(0xfUL << rd)) | (val << rd);
 			goto instr_done;
@@ -964,6 +966,19 @@ int analyse_instr(struct instruction_op *op, struct pt_regs *regs,
 #endif
 
 		case 19:	/* mfcr */
+			if ((instr >> 20) & 1) {
+				imm = 0xf0000000UL;
+				for (sh = 0; sh < 8; ++sh) {
+					if (instr & (0x80000 >> sh)) {
+						regs->gpr[rd] = regs->ccr & imm;
+						break;
+					}
+					imm >>= 4;
+				}
+
+				goto instr_done;
+			}
+
 			regs->gpr[rd] = regs->ccr;
 			regs->gpr[rd] &= 0xffffffffUL;
 			goto instr_done;
diff --git a/arch/powerpc/mm/mem.c b/arch/powerpc/mm/mem.c
index 8541f18694a4..46b4e67d2372 100644
--- a/arch/powerpc/mm/mem.c
+++ b/arch/powerpc/mm/mem.c
@@ -402,6 +402,7 @@ void __init mem_init(void)
 void free_initmem(void)
 {
 	ppc_md.progress = ppc_printk_progress;
+	mark_initmem_nx();
 	free_initmem_default(POISON_FREE_INITMEM);
 }
 
diff --git a/arch/powerpc/mm/mmap.c b/arch/powerpc/mm/mmap.c
index 0ee6be4f1ba4..5d78b193fec4 100644
--- a/arch/powerpc/mm/mmap.c
+++ b/arch/powerpc/mm/mmap.c
@@ -34,16 +34,9 @@
 /*
  * Top of mmap area (just below the process stack).
  *
- * Leave at least a ~128 MB hole on 32bit applications.
- *
- * On 64bit applications we randomise the stack by 1GB so we need to
- * space our mmap start address by a further 1GB, otherwise there is a
- * chance the mmap area will end up closer to the stack than our ulimit
- * requires.
+ * Leave at least a ~128 MB hole.
  */
-#define MIN_GAP32 (128*1024*1024)
-#define MIN_GAP64 ((128 + 1024)*1024*1024UL)
-#define MIN_GAP ((is_32bit_task()) ? MIN_GAP32 : MIN_GAP64)
+#define MIN_GAP (128*1024*1024)
 #define MAX_GAP (TASK_SIZE/6*5)
 
 static inline int mmap_is_legacy(void)
@@ -71,9 +64,26 @@ unsigned long arch_mmap_rnd(void)
 	return rnd << PAGE_SHIFT;
 }
 
+static inline unsigned long stack_maxrandom_size(void)
+{
+	if (!(current->flags & PF_RANDOMIZE))
+		return 0;
+
+	/* 8MB for 32bit, 1GB for 64bit */
+	if (is_32bit_task())
+		return (1<<23);
+	else
+		return (1<<30);
+}
+
 static inline unsigned long mmap_base(unsigned long rnd)
 {
 	unsigned long gap = rlimit(RLIMIT_STACK);
+	unsigned long pad = stack_maxrandom_size() + stack_guard_gap;
+
+	/* Values close to RLIM_INFINITY can overflow. */
+	if (gap + pad > gap)
+		gap += pad;
 
 	if (gap < MIN_GAP)
 		gap = MIN_GAP;
diff --git a/arch/powerpc/mm/mmu_context_book3s64.c b/arch/powerpc/mm/mmu_context_book3s64.c
index 71de2c6d88f3..a75f63833284 100644
--- a/arch/powerpc/mm/mmu_context_book3s64.c
+++ b/arch/powerpc/mm/mmu_context_book3s64.c
@@ -126,9 +126,10 @@ static int hash__init_new_context(struct mm_struct *mm)
 static int radix__init_new_context(struct mm_struct *mm)
 {
 	unsigned long rts_field;
-	int index;
+	int index, max_id;
 
-	index = alloc_context_id(1, PRTB_ENTRIES - 1);
+	max_id = (1 << mmu_pid_bits) - 1;
+	index = alloc_context_id(mmu_base_pid, max_id);
 	if (index < 0)
 		return index;
 
@@ -138,6 +139,14 @@ static int radix__init_new_context(struct mm_struct *mm)
 	rts_field = radix__get_tree_size();
 	process_tb[index].prtb0 = cpu_to_be64(rts_field | __pa(mm->pgd) | RADIX_PGD_INDEX_SIZE);
 
+	/*
+	 * Order the above store with subsequent update of the PID
+	 * register (at which point HW can start loading/caching
+	 * the entry) and the corresponding load by the MMU from
+	 * the L2 cache.
+	 */
+	asm volatile("ptesync;isync" : : : "memory");
+
 	mm->context.npu_context = NULL;
 
 	return index;
@@ -223,9 +232,15 @@ void destroy_context(struct mm_struct *mm)
 	mm->context.cop_lockp = NULL;
 #endif /* CONFIG_PPC_ICSWX */
 
-	if (radix_enabled())
-		process_tb[mm->context.id].prtb1 = 0;
-	else
+	if (radix_enabled()) {
+		/*
+		 * Radix doesn't have a valid bit in the process table
+		 * entries. However we know that at least P9 implementation
+		 * will avoid caching an entry with an invalid RTS field,
+		 * and 0 is invalid. So this will do.
+		 */
+		process_tb[mm->context.id].prtb0 = 0;
+	} else
 		subpage_prot_free(mm);
 	destroy_pagetable_page(mm);
 	__destroy_context(mm->context.id);
diff --git a/arch/powerpc/mm/pgtable-hash64.c b/arch/powerpc/mm/pgtable-hash64.c
index 188b4107584d..443a2c66a304 100644
--- a/arch/powerpc/mm/pgtable-hash64.c
+++ b/arch/powerpc/mm/pgtable-hash64.c
@@ -425,33 +425,51 @@ int hash__has_transparent_hugepage(void)
 #endif /* CONFIG_TRANSPARENT_HUGEPAGE */
 
 #ifdef CONFIG_STRICT_KERNEL_RWX
-void hash__mark_rodata_ro(void)
+static bool hash__change_memory_range(unsigned long start, unsigned long end,
+				      unsigned long newpp)
 {
-	unsigned long start = (unsigned long)_stext;
-	unsigned long end = (unsigned long)__init_begin;
 	unsigned long idx;
 	unsigned int step, shift;
-	unsigned long newpp = PP_RXXX;
 
 	shift = mmu_psize_defs[mmu_linear_psize].shift;
 	step = 1 << shift;
 
-	start = ((start + step - 1) >> shift) << shift;
-	end = (end >> shift) << shift;
+	start = ALIGN_DOWN(start, step);
+	end = ALIGN(end, step); // aligns up
 
-	pr_devel("marking ro start %lx, end %lx, step %x\n",
-			start, end, step);
+	if (start >= end)
+		return false;
 
-	if (start == end) {
-		pr_warn("could not set rodata ro, relocate the start"
-			" of the kernel to a 0x%x boundary\n", step);
-		return;
-	}
+	pr_debug("Changing page protection on range 0x%lx-0x%lx, to 0x%lx, step 0x%x\n",
+		 start, end, newpp, step);
 
 	for (idx = start; idx < end; idx += step)
 		/* Not sure if we can do much with the return value */
 		mmu_hash_ops.hpte_updateboltedpp(newpp, idx, mmu_linear_psize,
 							mmu_kernel_ssize);
 
+	return true;
+}
+
+void hash__mark_rodata_ro(void)
+{
+	unsigned long start, end;
+
+	start = (unsigned long)_stext;
+	end = (unsigned long)__init_begin;
+
+	WARN_ON(!hash__change_memory_range(start, end, PP_RXXX));
+}
+
+void hash__mark_initmem_nx(void)
+{
+	unsigned long start, end, pp;
+
+	start = (unsigned long)__init_begin;
+	end = (unsigned long)__init_end;
+
+	pp = htab_convert_pte_flags(pgprot_val(PAGE_KERNEL));
+
+	WARN_ON(!hash__change_memory_range(start, end, pp));
 }
 #endif
diff --git a/arch/powerpc/mm/pgtable-radix.c b/arch/powerpc/mm/pgtable-radix.c
index 8c13e4282308..671a45d86c18 100644
--- a/arch/powerpc/mm/pgtable-radix.c
+++ b/arch/powerpc/mm/pgtable-radix.c
@@ -25,6 +25,9 @@
 
 #include <trace/events/thp.h>
 
+unsigned int mmu_pid_bits;
+unsigned int mmu_base_pid;
+
 static int native_register_process_table(unsigned long base, unsigned long pg_sz,
 					 unsigned long table_size)
 {
@@ -112,10 +115,9 @@ set_the_pte:
 }
 
 #ifdef CONFIG_STRICT_KERNEL_RWX
-void radix__mark_rodata_ro(void)
+void radix__change_memory_range(unsigned long start, unsigned long end,
+				unsigned long clear)
 {
-	unsigned long start = (unsigned long)_stext;
-	unsigned long end = (unsigned long)__init_begin;
 	unsigned long idx;
 	pgd_t *pgdp;
 	pud_t *pudp;
@@ -125,7 +127,8 @@ void radix__mark_rodata_ro(void)
 	start = ALIGN_DOWN(start, PAGE_SIZE);
 	end = PAGE_ALIGN(end); // aligns up
 
-	pr_devel("marking ro start %lx, end %lx\n", start, end);
+	pr_debug("Changing flags on range %lx-%lx removing 0x%lx\n",
+		 start, end, clear);
 
 	for (idx = start; idx < end; idx += PAGE_SIZE) {
 		pgdp = pgd_offset_k(idx);
@@ -147,11 +150,29 @@ void radix__mark_rodata_ro(void)
 		if (!ptep)
 			continue;
 update_the_pte:
-		radix__pte_update(&init_mm, idx, ptep, _PAGE_WRITE, 0, 0);
+		radix__pte_update(&init_mm, idx, ptep, clear, 0, 0);
 	}
 
 	radix__flush_tlb_kernel_range(start, end);
 }
+
+void radix__mark_rodata_ro(void)
+{
+	unsigned long start, end;
+
+	start = (unsigned long)_stext;
+	end = (unsigned long)__init_begin;
+
+	radix__change_memory_range(start, end, _PAGE_WRITE);
+}
+
+void radix__mark_initmem_nx(void)
+{
+	unsigned long start = (unsigned long)__init_begin;
+	unsigned long end = (unsigned long)__init_end;
+
+	radix__change_memory_range(start, end, _PAGE_EXEC);
+}
 #endif /* CONFIG_STRICT_KERNEL_RWX */
 
 static inline void __meminit print_mapping(unsigned long start,
@@ -243,11 +264,34 @@ static void __init radix_init_pgtable(void)
 	for_each_memblock(memory, reg)
 		WARN_ON(create_physical_mapping(reg->base,
 						reg->base + reg->size));
+
+	/* Find out how many PID bits are supported */
+	if (cpu_has_feature(CPU_FTR_HVMODE)) {
+		if (!mmu_pid_bits)
+			mmu_pid_bits = 20;
+#ifdef CONFIG_KVM_BOOK3S_HV_POSSIBLE
+		/*
+		 * When KVM is possible, we only use the top half of the
+		 * PID space to avoid collisions between host and guest PIDs
+		 * which can cause problems due to prefetch when exiting the
+		 * guest with AIL=3
+		 */
+		mmu_base_pid = 1 << (mmu_pid_bits - 1);
+#else
+		mmu_base_pid = 1;
+#endif
+	} else {
+		/* The guest uses the bottom half of the PID space */
+		if (!mmu_pid_bits)
+			mmu_pid_bits = 19;
+		mmu_base_pid = 1;
+	}
+
 	/*
 	 * Allocate Partition table and process table for the
 	 * host.
 	 */
-	BUILD_BUG_ON_MSG((PRTB_SIZE_SHIFT > 36), "Process table size too large.");
+	BUG_ON(PRTB_SIZE_SHIFT > 36);
 	process_tb = early_alloc_pgtable(1UL << PRTB_SIZE_SHIFT);
 	/*
 	 * Fill in the process table.
@@ -321,6 +365,12 @@ static int __init radix_dt_scan_page_sizes(unsigned long node,
 	if (type == NULL || strcmp(type, "cpu") != 0)
 		return 0;
 
+	/* Find MMU PID size */
+	prop = of_get_flat_dt_prop(node, "ibm,mmu-pid-bits", &size);
+	if (prop && size == 4)
+		mmu_pid_bits = be32_to_cpup(prop);
+
+	/* Grab page size encodings */
 	prop = of_get_flat_dt_prop(node, "ibm,processor-radix-AP-encodings", &size);
 	if (!prop)
 		return 0;
diff --git a/arch/powerpc/mm/pgtable_64.c b/arch/powerpc/mm/pgtable_64.c
index 5c0b795d656c..0736e94c7615 100644
--- a/arch/powerpc/mm/pgtable_64.c
+++ b/arch/powerpc/mm/pgtable_64.c
@@ -505,4 +505,12 @@ void mark_rodata_ro(void)
 	else
 		hash__mark_rodata_ro();
 }
+
+void mark_initmem_nx(void)
+{
+	if (radix_enabled())
+		radix__mark_initmem_nx();
+	else
+		hash__mark_initmem_nx();
+}
 #endif
diff --git a/arch/powerpc/mm/subpage-prot.c b/arch/powerpc/mm/subpage-prot.c
index e94fbd4c8845..781532d7bc4d 100644
--- a/arch/powerpc/mm/subpage-prot.c
+++ b/arch/powerpc/mm/subpage-prot.c
@@ -36,7 +36,7 @@ void subpage_prot_free(struct mm_struct *mm)
 		}
 	}
 	addr = 0;
-	for (i = 0; i < 2; ++i) {
+	for (i = 0; i < (TASK_SIZE_USER64 >> 43); ++i) {
 		p = spt->protptrs[i];
 		if (!p)
 			continue;
diff --git a/arch/powerpc/mm/tlb-radix.c b/arch/powerpc/mm/tlb-radix.c
index 744e0164ecf5..16ae1bbe13f0 100644
--- a/arch/powerpc/mm/tlb-radix.c
+++ b/arch/powerpc/mm/tlb-radix.c
@@ -12,12 +12,12 @@
 #include <linux/mm.h>
 #include <linux/hugetlb.h>
 #include <linux/memblock.h>
-#include <asm/ppc-opcode.h>
 
+#include <asm/ppc-opcode.h>
 #include <asm/tlb.h>
 #include <asm/tlbflush.h>
 #include <asm/trace.h>
-
+#include <asm/cputhreads.h>
 
 #define RIC_FLUSH_TLB 0
 #define RIC_FLUSH_PWC 1
@@ -454,3 +454,44 @@ void radix__flush_tlb_pte_p9_dd1(unsigned long old_pte, struct mm_struct *mm,
 	else
 		radix__flush_tlb_page_psize(mm, address, mmu_virtual_psize);
 }
+
+#ifdef CONFIG_KVM_BOOK3S_HV_POSSIBLE
+extern void radix_kvm_prefetch_workaround(struct mm_struct *mm)
+{
+	unsigned int pid = mm->context.id;
+
+	if (unlikely(pid == MMU_NO_CONTEXT))
+		return;
+
+	/*
+	 * If this context hasn't run on that CPU before and KVM is
+	 * around, there's a slim chance that the guest on another
+	 * CPU just brought in obsolete translation into the TLB of
+	 * this CPU due to a bad prefetch using the guest PID on
+	 * the way into the hypervisor.
+	 *
+	 * We work around this here. If KVM is possible, we check if
+	 * any sibling thread is in KVM. If it is, the window may exist
+	 * and thus we flush that PID from the core.
+	 *
+	 * A potential future improvement would be to mark which PIDs
+	 * have never been used on the system and avoid it if the PID
+	 * is new and the process has no other cpumask bit set.
+	 */
+	if (cpu_has_feature(CPU_FTR_HVMODE) && radix_enabled()) {
+		int cpu = smp_processor_id();
+		int sib = cpu_first_thread_sibling(cpu);
+		bool flush = false;
+
+		for (; sib <= cpu_last_thread_sibling(cpu) && !flush; sib++) {
+			if (sib == cpu)
+				continue;
+			if (paca[sib].kvm_hstate.kvm_vcpu)
+				flush = true;
+		}
+		if (flush)
+			_tlbiel_pid(pid, RIC_FLUSH_ALL);
+	}
+}
+EXPORT_SYMBOL_GPL(radix_kvm_prefetch_workaround);
+#endif /* CONFIG_KVM_BOOK3S_HV_POSSIBLE */
diff --git a/arch/powerpc/perf/isa207-common.c b/arch/powerpc/perf/isa207-common.c
index 8125160be7bc..3f3aa9a7063a 100644
--- a/arch/powerpc/perf/isa207-common.c
+++ b/arch/powerpc/perf/isa207-common.c
@@ -90,13 +90,15 @@ static void mmcra_sdar_mode(u64 event, unsigned long *mmcra)
 	 *	MMCRA[SDAR_MODE] will be set to 0b01
 	 * For rest
 	 *	MMCRA[SDAR_MODE] will be set from event code.
+	 *      If sdar_mode from event is zero, default to 0b01. Hardware
+	 *      requires that we set a non-zero value.
 	 */
 	if (cpu_has_feature(CPU_FTR_ARCH_300)) {
 		if (is_event_marked(event) || (*mmcra & MMCRA_SAMPLE_ENABLE))
 			*mmcra &= MMCRA_SDAR_MODE_NO_UPDATES;
-		else if (!cpu_has_feature(CPU_FTR_POWER9_DD1))
+		else if (!cpu_has_feature(CPU_FTR_POWER9_DD1) && p9_SDAR_MODE(event))
 			*mmcra |=  p9_SDAR_MODE(event) << MMCRA_SDAR_MODE_SHIFT;
-		else if (cpu_has_feature(CPU_FTR_POWER9_DD1))
+		else
 			*mmcra |= MMCRA_SDAR_MODE_TLB;
 	} else
 		*mmcra |= MMCRA_SDAR_MODE_TLB;
diff --git a/arch/powerpc/perf/power9-events-list.h b/arch/powerpc/perf/power9-events-list.h
index 80204e064362..50689180a6c1 100644
--- a/arch/powerpc/perf/power9-events-list.h
+++ b/arch/powerpc/perf/power9-events-list.h
@@ -51,8 +51,12 @@ EVENT(PM_DTLB_MISS,				0x300fc)
 EVENT(PM_ITLB_MISS,				0x400fc)
 /* Run_Instructions */
 EVENT(PM_RUN_INST_CMPL,				0x500fa)
+/* Alternate event code for PM_RUN_INST_CMPL */
+EVENT(PM_RUN_INST_CMPL_ALT,			0x400fa)
 /* Run_cycles */
 EVENT(PM_RUN_CYC,				0x600f4)
+/* Alternate event code for Run_cycles */
+EVENT(PM_RUN_CYC_ALT,				0x200f4)
 /* Instruction Dispatched */
 EVENT(PM_INST_DISP,				0x200f2)
 EVENT(PM_INST_DISP_ALT,				0x300f2)
diff --git a/arch/powerpc/perf/power9-pmu.c b/arch/powerpc/perf/power9-pmu.c
index f17435e4a489..2280cf87ff9c 100644
--- a/arch/powerpc/perf/power9-pmu.c
+++ b/arch/powerpc/perf/power9-pmu.c
@@ -107,6 +107,8 @@ extern struct attribute_group isa207_pmu_format_group;
 /* Table of alternatives, sorted by column 0 */
 static const unsigned int power9_event_alternatives[][MAX_ALT] = {
 	{ PM_INST_DISP,			PM_INST_DISP_ALT },
+	{ PM_RUN_CYC_ALT,		PM_RUN_CYC },
+	{ PM_RUN_INST_CMPL_ALT,		PM_RUN_INST_CMPL },
 };
 
 static int power9_get_alternatives(u64 event, unsigned int flags, u64 alt[])
diff --git a/arch/powerpc/platforms/83xx/mpc832x_rdb.c b/arch/powerpc/platforms/83xx/mpc832x_rdb.c
index d7c9b186954d..763ffca9628d 100644
--- a/arch/powerpc/platforms/83xx/mpc832x_rdb.c
+++ b/arch/powerpc/platforms/83xx/mpc832x_rdb.c
@@ -89,7 +89,7 @@ static int __init of_fsl_spi_probe(char *type, char *compatible, u32 sysclk,
 			goto err;
 
 		ret = of_irq_to_resource(np, 0, &res[1]);
-		if (!ret)
+		if (ret <= 0)
 			goto err;
 
 		pdev = platform_device_alloc("mpc83xx_spi", i);
diff --git a/arch/powerpc/platforms/cell/spufs/inode.c b/arch/powerpc/platforms/cell/spufs/inode.c
index d8af9bc0489f..9558d725a99b 100644
--- a/arch/powerpc/platforms/cell/spufs/inode.c
+++ b/arch/powerpc/platforms/cell/spufs/inode.c
@@ -605,6 +605,24 @@ static const match_table_t spufs_tokens = {
 	{ Opt_err,    NULL  },
 };
 
+static int spufs_show_options(struct seq_file *m, struct dentry *root)
+{
+	struct spufs_sb_info *sbi = spufs_get_sb_info(root->d_sb);
+	struct inode *inode = root->d_inode;
+
+	if (!uid_eq(inode->i_uid, GLOBAL_ROOT_UID))
+		seq_printf(m, ",uid=%u",
+			   from_kuid_munged(&init_user_ns, inode->i_uid));
+	if (!gid_eq(inode->i_gid, GLOBAL_ROOT_GID))
+		seq_printf(m, ",gid=%u",
+			   from_kgid_munged(&init_user_ns, inode->i_gid));
+	if ((inode->i_mode & S_IALLUGO) != 0775)
+		seq_printf(m, ",mode=%o", inode->i_mode);
+	if (sbi->debug)
+		seq_puts(m, ",debug");
+	return 0;
+}
+
 static int
 spufs_parse_options(struct super_block *sb, char *options, struct inode *root)
 {
@@ -724,11 +742,9 @@ spufs_fill_super(struct super_block *sb, void *data, int silent)
 		.destroy_inode = spufs_destroy_inode,
 		.statfs = simple_statfs,
 		.evict_inode = spufs_evict_inode,
-		.show_options = generic_show_options,
+		.show_options = spufs_show_options,
 	};
 
-	save_mount_options(sb, data);
-
 	info = kzalloc(sizeof(*info), GFP_KERNEL);
 	if (!info)
 		return -ENOMEM;
diff --git a/arch/powerpc/platforms/powernv/idle.c b/arch/powerpc/platforms/powernv/idle.c
index 2abee070373f..a553aeea7af6 100644
--- a/arch/powerpc/platforms/powernv/idle.c
+++ b/arch/powerpc/platforms/powernv/idle.c
@@ -56,6 +56,7 @@ u64 pnv_first_deep_stop_state = MAX_STOP_STATE;
  */
 static u64 pnv_deepest_stop_psscr_val;
 static u64 pnv_deepest_stop_psscr_mask;
+static u64 pnv_deepest_stop_flag;
 static bool deepest_stop_found;
 
 static int pnv_save_sprs_for_deep_states(void)
@@ -185,8 +186,40 @@ static void pnv_alloc_idle_core_states(void)
 
 	update_subcore_sibling_mask();
 
-	if (supported_cpuidle_states & OPAL_PM_LOSE_FULL_CONTEXT)
-		pnv_save_sprs_for_deep_states();
+	if (supported_cpuidle_states & OPAL_PM_LOSE_FULL_CONTEXT) {
+		int rc = pnv_save_sprs_for_deep_states();
+
+		if (likely(!rc))
+			return;
+
+		/*
+		 * The stop-api is unable to restore hypervisor
+		 * resources on wakeup from platform idle states which
+		 * lose full context. So disable such states.
+		 */
+		supported_cpuidle_states &= ~OPAL_PM_LOSE_FULL_CONTEXT;
+		pr_warn("cpuidle-powernv: Disabling idle states that lose full context\n");
+		pr_warn("cpuidle-powernv: Idle power-savings, CPU-Hotplug affected\n");
+
+		if (cpu_has_feature(CPU_FTR_ARCH_300) &&
+		    (pnv_deepest_stop_flag & OPAL_PM_LOSE_FULL_CONTEXT)) {
+			/*
+			 * Use the default stop state for CPU-Hotplug
+			 * if available.
+			 */
+			if (default_stop_found) {
+				pnv_deepest_stop_psscr_val =
+					pnv_default_stop_val;
+				pnv_deepest_stop_psscr_mask =
+					pnv_default_stop_mask;
+				pr_warn("cpuidle-powernv: Offlined CPUs will stop with psscr = 0x%016llx\n",
+					pnv_deepest_stop_psscr_val);
+			} else { /* Fallback to snooze loop for CPU-Hotplug */
+				deepest_stop_found = false;
+				pr_warn("cpuidle-powernv: Offlined CPUs will busy wait\n");
+			}
+		}
+	}
 }
 
 u32 pnv_get_supported_cpuidle_states(void)
@@ -375,7 +408,8 @@ unsigned long pnv_cpu_offline(unsigned int cpu)
 						pnv_deepest_stop_psscr_val;
 		srr1 = power9_idle_stop(psscr);
 
-	} else if (idle_states & OPAL_PM_WINKLE_ENABLED) {
+	} else if ((idle_states & OPAL_PM_WINKLE_ENABLED) &&
+		   (idle_states & OPAL_PM_LOSE_FULL_CONTEXT)) {
 		srr1 = power7_idle_insn(PNV_THREAD_WINKLE);
 	} else if ((idle_states & OPAL_PM_SLEEP_ENABLED) ||
 		   (idle_states & OPAL_PM_SLEEP_ENABLED_ER1)) {
@@ -553,6 +587,7 @@ static int __init pnv_power9_idle_init(struct device_node *np, u32 *flags,
 			max_residency_ns = residency_ns[i];
 			pnv_deepest_stop_psscr_val = psscr_val[i];
 			pnv_deepest_stop_psscr_mask = psscr_mask[i];
+			pnv_deepest_stop_flag = flags[i];
 			deepest_stop_found = true;
 		}
 
diff --git a/arch/powerpc/platforms/powernv/opal.c b/arch/powerpc/platforms/powernv/opal.c
index 59684b4af4d1..cad6b57ce494 100644
--- a/arch/powerpc/platforms/powernv/opal.c
+++ b/arch/powerpc/platforms/powernv/opal.c
@@ -59,6 +59,8 @@ static struct task_struct *kopald_tsk;
 
 void opal_configure_cores(void)
 {
+	u64 reinit_flags = 0;
+
 	/* Do the actual re-init, This will clobber all FPRs, VRs, etc...
 	 *
 	 * It will preserve non volatile GPRs and HSPRG0/1. It will
@@ -66,11 +68,24 @@ void opal_configure_cores(void)
 	 * but it might clobber a bunch.
 	 */
 #ifdef __BIG_ENDIAN__
-	opal_reinit_cpus(OPAL_REINIT_CPUS_HILE_BE);
+	reinit_flags |= OPAL_REINIT_CPUS_HILE_BE;
 #else
-	opal_reinit_cpus(OPAL_REINIT_CPUS_HILE_LE);
+	reinit_flags |= OPAL_REINIT_CPUS_HILE_LE;
 #endif
 
+	/*
+	 * POWER9 always support running hash:
+	 *  ie. Host hash  supports  hash guests
+	 *      Host radix supports  hash/radix guests
+	 */
+	if (early_cpu_has_feature(CPU_FTR_ARCH_300)) {
+		reinit_flags |= OPAL_REINIT_CPUS_MMU_HASH;
+		if (early_radix_enabled())
+			reinit_flags |= OPAL_REINIT_CPUS_MMU_RADIX;
+	}
+
+	opal_reinit_cpus(reinit_flags);
+
 	/* Restore some bits */
 	if (cur_cpu_spec->cpu_restore)
 		cur_cpu_spec->cpu_restore();
diff --git a/arch/powerpc/platforms/powernv/pci-ioda.c b/arch/powerpc/platforms/powernv/pci-ioda.c
index 437613588df1..b900eb1d5e17 100644
--- a/arch/powerpc/platforms/powernv/pci-ioda.c
+++ b/arch/powerpc/platforms/powernv/pci-ioda.c
@@ -1852,6 +1852,14 @@ static int pnv_pci_ioda_dma_set_mask(struct pci_dev *pdev, u64 dma_mask)
 			/* 4GB offset bypasses 32-bit space */
 			set_dma_offset(&pdev->dev, (1ULL << 32));
 			set_dma_ops(&pdev->dev, &dma_direct_ops);
+		} else if (dma_mask >> 32 && dma_mask != DMA_BIT_MASK(64)) {
+			/*
+			 * Fail the request if a DMA mask between 32 and 64 bits
+			 * was requested but couldn't be fulfilled. Ideally we
+			 * would do this for 64-bits but historically we have
+			 * always fallen back to 32-bits.
+			 */
+			return -ENOMEM;
 		} else {
 			dev_info(&pdev->dev, "Using 32-bit DMA via iommu\n");
 			set_dma_ops(&pdev->dev, &dma_iommu_ops);
diff --git a/arch/powerpc/platforms/powernv/setup.c b/arch/powerpc/platforms/powernv/setup.c
index 2dc7e5fb86c3..897aa1400eb8 100644
--- a/arch/powerpc/platforms/powernv/setup.c
+++ b/arch/powerpc/platforms/powernv/setup.c
@@ -225,6 +225,8 @@ static void pnv_kexec_wait_secondaries_down(void)
 
 static void pnv_kexec_cpu_down(int crash_shutdown, int secondary)
 {
+	u64 reinit_flags;
+
 	if (xive_enabled())
 		xive_kexec_teardown_cpu(secondary);
 	else
@@ -254,8 +256,15 @@ static void pnv_kexec_cpu_down(int crash_shutdown, int secondary)
 		 * We might be running as little-endian - now that interrupts
 		 * are disabled, reset the HILE bit to big-endian so we don't
 		 * take interrupts in the wrong endian later
+		 *
+		 * We reinit to enable both radix and hash on P9 to ensure
+		 * the mode used by the next kernel is always supported.
 		 */
-		opal_reinit_cpus(OPAL_REINIT_CPUS_HILE_BE);
+		reinit_flags = OPAL_REINIT_CPUS_HILE_BE;
+		if (cpu_has_feature(CPU_FTR_ARCH_300))
+			reinit_flags |= OPAL_REINIT_CPUS_MMU_RADIX |
+				OPAL_REINIT_CPUS_MMU_HASH;
+		opal_reinit_cpus(reinit_flags);
 	}
 }
 #endif /* CONFIG_KEXEC_CORE */
diff --git a/arch/powerpc/platforms/pseries/reconfig.c b/arch/powerpc/platforms/pseries/reconfig.c
index e5bf1e84047f..011ef2180fe6 100644
--- a/arch/powerpc/platforms/pseries/reconfig.c
+++ b/arch/powerpc/platforms/pseries/reconfig.c
@@ -82,7 +82,6 @@ static int pSeries_reconfig_remove_node(struct device_node *np)
 
 	of_detach_node(np);
 	of_node_put(parent);
-	of_node_put(np); /* Must decrement the refcount */
 	return 0;
 }
 
diff --git a/arch/s390/include/asm/bug.h b/arch/s390/include/asm/bug.h
index 1bbd9dbfe4e0..ce9cc123988b 100644
--- a/arch/s390/include/asm/bug.h
+++ b/arch/s390/include/asm/bug.h
@@ -14,7 +14,7 @@
 		".section .rodata.str,\"aMS\",@progbits,1\n"	\
 		"2:	.asciz	\""__FILE__"\"\n"		\
 		".previous\n"					\
-		".section __bug_table,\"a\"\n"			\
+		".section __bug_table,\"aw\"\n"			\
 		"3:	.long	1b-3b,2b-3b\n"			\
 		"	.short	%0,%1\n"			\
 		"	.org	3b+%2\n"			\
@@ -30,7 +30,7 @@
 	asm volatile(					\
 		"0:	j	0b+2\n"			\
 		"1:\n"					\
-		".section __bug_table,\"a\"\n"		\
+		".section __bug_table,\"aw\"\n"		\
 		"2:	.long	1b-2b\n"		\
 		"	.short	%0\n"			\
 		"	.org	2b+%1\n"		\
diff --git a/arch/s390/include/asm/tlb.h b/arch/s390/include/asm/tlb.h
index 7317b3108a88..2eb8ff0d6fca 100644
--- a/arch/s390/include/asm/tlb.h
+++ b/arch/s390/include/asm/tlb.h
@@ -47,10 +47,9 @@ struct mmu_table_batch {
 extern void tlb_table_flush(struct mmu_gather *tlb);
 extern void tlb_remove_table(struct mmu_gather *tlb, void *table);
 
-static inline void tlb_gather_mmu(struct mmu_gather *tlb,
-				  struct mm_struct *mm,
-				  unsigned long start,
-				  unsigned long end)
+static inline void
+arch_tlb_gather_mmu(struct mmu_gather *tlb, struct mm_struct *mm,
+			unsigned long start, unsigned long end)
 {
 	tlb->mm = mm;
 	tlb->start = start;
@@ -76,9 +75,15 @@ static inline void tlb_flush_mmu(struct mmu_gather *tlb)
 	tlb_flush_mmu_free(tlb);
 }
 
-static inline void tlb_finish_mmu(struct mmu_gather *tlb,
-				  unsigned long start, unsigned long end)
+static inline void
+arch_tlb_finish_mmu(struct mmu_gather *tlb,
+		unsigned long start, unsigned long end, bool force)
 {
+	if (force) {
+		tlb->start = start;
+		tlb->end = end;
+	}
+
 	tlb_flush_mmu(tlb);
 }
 
diff --git a/arch/s390/include/asm/uaccess.h b/arch/s390/include/asm/uaccess.h
index 28b528197cf5..304cfe44df50 100644
--- a/arch/s390/include/asm/uaccess.h
+++ b/arch/s390/include/asm/uaccess.h
@@ -249,9 +249,6 @@ int __put_user_bad(void) __attribute__((noreturn));
 
 int __get_user_bad(void) __attribute__((noreturn));
 
-#define __put_user_unaligned __put_user
-#define __get_user_unaligned __get_user
-
 unsigned long __must_check
 raw_copy_in_user(void __user *to, const void __user *from, unsigned long n);
 
diff --git a/arch/s390/kernel/machine_kexec.c b/arch/s390/kernel/machine_kexec.c
index 49a6bd45957b..3d0b14afa232 100644
--- a/arch/s390/kernel/machine_kexec.c
+++ b/arch/s390/kernel/machine_kexec.c
@@ -246,6 +246,7 @@ void arch_crash_save_vmcoreinfo(void)
 	VMCOREINFO_SYMBOL(lowcore_ptr);
 	VMCOREINFO_SYMBOL(high_memory);
 	VMCOREINFO_LENGTH(lowcore_ptr, NR_CPUS);
+	mem_assign_absolute(S390_lowcore.vmcore_info, paddr_vmcoreinfo_note());
 }
 
 void machine_shutdown(void)
diff --git a/arch/s390/kernel/perf_cpum_sf.c b/arch/s390/kernel/perf_cpum_sf.c
index 0c82f7903fc7..c1bf75ffb875 100644
--- a/arch/s390/kernel/perf_cpum_sf.c
+++ b/arch/s390/kernel/perf_cpum_sf.c
@@ -998,7 +998,7 @@ static int perf_push_sample(struct perf_event *event, struct sf_raw_sample *sfr)
 	psw_bits(regs.psw).ia	= sfr->basic.ia;
 	psw_bits(regs.psw).dat	= sfr->basic.T;
 	psw_bits(regs.psw).wait = sfr->basic.W;
-	psw_bits(regs.psw).per	= sfr->basic.P;
+	psw_bits(regs.psw).pstate = sfr->basic.P;
 	psw_bits(regs.psw).as	= sfr->basic.AS;
 
 	/*
diff --git a/arch/s390/kernel/setup.c b/arch/s390/kernel/setup.c
index 3ae756c0db3d..3d1d808ea8a9 100644
--- a/arch/s390/kernel/setup.c
+++ b/arch/s390/kernel/setup.c
@@ -496,11 +496,6 @@ static void __init setup_memory_end(void)
 	pr_notice("The maximum memory size is %luMB\n", memory_end >> 20);
 }
 
-static void __init setup_vmcoreinfo(void)
-{
-	mem_assign_absolute(S390_lowcore.vmcore_info, paddr_vmcoreinfo_note());
-}
-
 #ifdef CONFIG_CRASH_DUMP
 
 /*
@@ -939,7 +934,6 @@ void __init setup_arch(char **cmdline_p)
 #endif
 
 	setup_resources();
-	setup_vmcoreinfo();
 	setup_lowcore();
 	smp_fill_possible_mask();
 	cpu_detect_mhz_feature();
diff --git a/arch/s390/kvm/kvm-s390.c b/arch/s390/kvm/kvm-s390.c
index 3f2884e99ed4..af09d3437631 100644
--- a/arch/s390/kvm/kvm-s390.c
+++ b/arch/s390/kvm/kvm-s390.c
@@ -1324,7 +1324,7 @@ static long kvm_s390_get_skeys(struct kvm *kvm, struct kvm_s390_skeys *args)
 {
 	uint8_t *keys;
 	uint64_t hva;
-	int i, r = 0;
+	int srcu_idx, i, r = 0;
 
 	if (args->flags != 0)
 		return -EINVAL;
@@ -1342,6 +1342,7 @@ static long kvm_s390_get_skeys(struct kvm *kvm, struct kvm_s390_skeys *args)
 		return -ENOMEM;
 
 	down_read(&current->mm->mmap_sem);
+	srcu_idx = srcu_read_lock(&kvm->srcu);
 	for (i = 0; i < args->count; i++) {
 		hva = gfn_to_hva(kvm, args->start_gfn + i);
 		if (kvm_is_error_hva(hva)) {
@@ -1353,6 +1354,7 @@ static long kvm_s390_get_skeys(struct kvm *kvm, struct kvm_s390_skeys *args)
 		if (r)
 			break;
 	}
+	srcu_read_unlock(&kvm->srcu, srcu_idx);
 	up_read(&current->mm->mmap_sem);
 
 	if (!r) {
@@ -1370,7 +1372,7 @@ static long kvm_s390_set_skeys(struct kvm *kvm, struct kvm_s390_skeys *args)
 {
 	uint8_t *keys;
 	uint64_t hva;
-	int i, r = 0;
+	int srcu_idx, i, r = 0;
 
 	if (args->flags != 0)
 		return -EINVAL;
@@ -1396,6 +1398,7 @@ static long kvm_s390_set_skeys(struct kvm *kvm, struct kvm_s390_skeys *args)
 		goto out;
 
 	down_read(&current->mm->mmap_sem);
+	srcu_idx = srcu_read_lock(&kvm->srcu);
 	for (i = 0; i < args->count; i++) {
 		hva = gfn_to_hva(kvm, args->start_gfn + i);
 		if (kvm_is_error_hva(hva)) {
@@ -1413,6 +1416,7 @@ static long kvm_s390_set_skeys(struct kvm *kvm, struct kvm_s390_skeys *args)
 		if (r)
 			break;
 	}
+	srcu_read_unlock(&kvm->srcu, srcu_idx);
 	up_read(&current->mm->mmap_sem);
 out:
 	kvfree(keys);
diff --git a/arch/s390/mm/pgtable.c b/arch/s390/mm/pgtable.c
index d4d409ba206b..4a1f7366b17a 100644
--- a/arch/s390/mm/pgtable.c
+++ b/arch/s390/mm/pgtable.c
@@ -591,11 +591,11 @@ void ptep_zap_key(struct mm_struct *mm, unsigned long addr, pte_t *ptep)
 	unsigned long ptev;
 	pgste_t pgste;
 
-	/* Clear storage key */
+	/* Clear storage key ACC and F, but set R/C */
 	preempt_disable();
 	pgste = pgste_get_lock(ptep);
-	pgste_val(pgste) &= ~(PGSTE_ACC_BITS | PGSTE_FP_BIT |
-			      PGSTE_GR_BIT | PGSTE_GC_BIT);
+	pgste_val(pgste) &= ~(PGSTE_ACC_BITS | PGSTE_FP_BIT);
+	pgste_val(pgste) |= PGSTE_GR_BIT | PGSTE_GC_BIT;
 	ptev = pte_val(*ptep);
 	if (!(ptev & _PAGE_INVALID) && (ptev & _PAGE_WRITE))
 		page_set_storage_key(ptev & PAGE_MASK, PAGE_DEFAULT_KEY, 1);
diff --git a/arch/s390/net/bpf_jit_comp.c b/arch/s390/net/bpf_jit_comp.c
index 01c6fbc3e85b..1803797fc885 100644
--- a/arch/s390/net/bpf_jit_comp.c
+++ b/arch/s390/net/bpf_jit_comp.c
@@ -1253,7 +1253,8 @@ static int bpf_jit_prog(struct bpf_jit *jit, struct bpf_prog *fp)
 		insn_count = bpf_jit_insn(jit, fp, i);
 		if (insn_count < 0)
 			return -1;
-		jit->addrs[i + 1] = jit->prg; /* Next instruction address */
+		/* Next instruction address */
+		jit->addrs[i + insn_count] = jit->prg;
 	}
 	bpf_jit_epilogue(jit);
 
diff --git a/arch/sh/include/asm/Kbuild b/arch/sh/include/asm/Kbuild
index 590c91ae7541..1a6f9c39feef 100644
--- a/arch/sh/include/asm/Kbuild
+++ b/arch/sh/include/asm/Kbuild
@@ -1,39 +1,20 @@
-
-generic-y += bitsperlong.h
 generic-y += clkdev.h
 generic-y += current.h
 generic-y += delay.h
 generic-y += div64.h
 generic-y += emergency-restart.h
-generic-y += errno.h
 generic-y += exec.h
-generic-y += fcntl.h
-generic-y += ioctl.h
-generic-y += ipcbuf.h
 generic-y += irq_regs.h
 generic-y += irq_work.h
-generic-y += kvm_para.h
 generic-y += local.h
 generic-y += local64.h
 generic-y += mcs_spinlock.h
 generic-y += mm-arch-hooks.h
-generic-y += mman.h
-generic-y += msgbuf.h
-generic-y += param.h
 generic-y += parport.h
 generic-y += percpu.h
-generic-y += poll.h
 generic-y += preempt.h
-generic-y += resource.h
 generic-y += rwsem.h
-generic-y += sembuf.h
 generic-y += serial.h
-generic-y += shmbuf.h
 generic-y += sizes.h
-generic-y += socket.h
-generic-y += statfs.h
-generic-y += termbits.h
-generic-y += termios.h
 generic-y += trace_clock.h
-generic-y += ucontext.h
 generic-y += xor.h
diff --git a/arch/sh/include/asm/bug.h b/arch/sh/include/asm/bug.h
index 1b77f068be2b..5b5086367639 100644
--- a/arch/sh/include/asm/bug.h
+++ b/arch/sh/include/asm/bug.h
@@ -24,14 +24,14 @@
  */
 #ifdef CONFIG_DEBUG_BUGVERBOSE
 #define _EMIT_BUG_ENTRY				\
-	"\t.pushsection __bug_table,\"a\"\n"	\
+	"\t.pushsection __bug_table,\"aw\"\n"	\
 	"2:\t.long 1b, %O1\n"			\
 	"\t.short %O2, %O3\n"			\
 	"\t.org 2b+%O4\n"			\
 	"\t.popsection\n"
 #else
 #define _EMIT_BUG_ENTRY				\
-	"\t.pushsection __bug_table,\"a\"\n"	\
+	"\t.pushsection __bug_table,\"aw\"\n"	\
 	"2:\t.long 1b\n"			\
 	"\t.short %O3\n"			\
 	"\t.org 2b+%O4\n"			\
@@ -48,6 +48,7 @@ do {							\
 		   "i" (__FILE__),			\
 		   "i" (__LINE__), "i" (0),		\
 		   "i" (sizeof(struct bug_entry)));	\
+	unreachable();					\
 } while (0)
 
 #define __WARN_FLAGS(flags)				\
diff --git a/arch/sh/include/asm/flat.h b/arch/sh/include/asm/flat.h
index 5d84df5e27f6..275fcae23539 100644
--- a/arch/sh/include/asm/flat.h
+++ b/arch/sh/include/asm/flat.h
@@ -12,11 +12,22 @@
 #ifndef __ASM_SH_FLAT_H
 #define __ASM_SH_FLAT_H
 
+#include <asm/unaligned.h>
+
 #define	flat_argvp_envp_on_stack()		0
 #define	flat_old_ram_flag(flags)		(flags)
 #define	flat_reloc_valid(reloc, size)		((reloc) <= (size))
-#define	flat_get_addr_from_rp(rp, relval, flags, p)	get_unaligned(rp)
-#define	flat_put_addr_at_rp(rp, val, relval)	put_unaligned(val,rp)
+static inline int flat_get_addr_from_rp(u32 __user *rp, u32 relval, u32 flags,
+					u32 *addr, u32 *persistent)
+{
+	*addr = get_unaligned((__force u32 *)rp);
+	return 0;
+}
+static inline int flat_put_addr_at_rp(u32 __user *rp, u32 addr, u32 rel)
+{
+	put_unaligned(addr, (__force u32 *)rp);
+	return 0;
+}
 #define	flat_get_relocate_addr(rel)		(rel)
 #define	flat_set_persistent(relval, p)		({ (void)p; 0; })
 
diff --git a/arch/sh/include/asm/stackprotector.h b/arch/sh/include/asm/stackprotector.h
index d9df3a76847c..141515a43b78 100644
--- a/arch/sh/include/asm/stackprotector.h
+++ b/arch/sh/include/asm/stackprotector.h
@@ -19,6 +19,7 @@ static __always_inline void boot_init_stack_canary(void)
 	/* Try to get a semi random initial value. */
 	get_random_bytes(&canary, sizeof(canary));
 	canary ^= LINUX_VERSION_CODE;
+	canary &= CANARY_MASK;
 
 	current->stack_canary = canary;
 	__stack_chk_guard = current->stack_canary;
diff --git a/arch/sh/include/asm/tlb.h b/arch/sh/include/asm/tlb.h
index 46e0d635e36f..51a8bc967e75 100644
--- a/arch/sh/include/asm/tlb.h
+++ b/arch/sh/include/asm/tlb.h
@@ -36,7 +36,8 @@ static inline void init_tlb_gather(struct mmu_gather *tlb)
 }
 
 static inline void
-tlb_gather_mmu(struct mmu_gather *tlb, struct mm_struct *mm, unsigned long start, unsigned long end)
+arch_tlb_gather_mmu(struct mmu_gather *tlb, struct mm_struct *mm,
+		unsigned long start, unsigned long end)
 {
 	tlb->mm = mm;
 	tlb->start = start;
@@ -47,9 +48,10 @@ tlb_gather_mmu(struct mmu_gather *tlb, struct mm_struct *mm, unsigned long start
 }
 
 static inline void
-tlb_finish_mmu(struct mmu_gather *tlb, unsigned long start, unsigned long end)
+arch_tlb_finish_mmu(struct mmu_gather *tlb,
+		unsigned long start, unsigned long end, bool force)
 {
-	if (tlb->fullmm)
+	if (tlb->fullmm || force)
 		flush_tlb_mm(tlb->mm);
 
 	/* keep the page table cache within bounds */
diff --git a/arch/sh/include/uapi/asm/Kbuild b/arch/sh/include/uapi/asm/Kbuild
index b55fc2ae1e8c..e28531333efa 100644
--- a/arch/sh/include/uapi/asm/Kbuild
+++ b/arch/sh/include/uapi/asm/Kbuild
@@ -1,4 +1,22 @@
 # UAPI Header export list
 include include/uapi/asm-generic/Kbuild.asm
 
+generic-y += bitsperlong.h
+generic-y += errno.h
+generic-y += fcntl.h
+generic-y += ioctl.h
+generic-y += ipcbuf.h
+generic-y += kvm_para.h
+generic-y += mman.h
+generic-y += msgbuf.h
+generic-y += param.h
+generic-y += poll.h
+generic-y += resource.h
+generic-y += sembuf.h
+generic-y += shmbuf.h
 generic-y += siginfo.h
+generic-y += socket.h
+generic-y += statfs.h
+generic-y += termbits.h
+generic-y += termios.h
+generic-y += ucontext.h
diff --git a/arch/sh/include/uapi/asm/ioctls.h b/arch/sh/include/uapi/asm/ioctls.h
index eec7901e9e65..787bac9f67da 100644
--- a/arch/sh/include/uapi/asm/ioctls.h
+++ b/arch/sh/include/uapi/asm/ioctls.h
@@ -93,7 +93,7 @@
 #define TIOCGPKT	_IOR('T', 0x38, int) /* Get packet mode state */
 #define TIOCGPTLCK	_IOR('T', 0x39, int) /* Get Pty lock state */
 #define TIOCGEXCL	_IOR('T', 0x40, int) /* Get exclusive mode state */
-#define TIOCGPTPEER	_IOR('T', 0x41, int) /* Safely open the slave */
+#define TIOCGPTPEER	_IO('T', 0x41) /* Safely open the slave */
 
 #define TIOCSERCONFIG	_IO('T', 83) /* 0x5453 */
 #define TIOCSERGWILD	_IOR('T', 84,  int) /* 0x5454 */
diff --git a/arch/sh/mm/cache-sh5.c b/arch/sh/mm/cache-sh5.c
index d94dadedf74f..445b5e69b73c 100644
--- a/arch/sh/mm/cache-sh5.c
+++ b/arch/sh/mm/cache-sh5.c
@@ -234,7 +234,7 @@ static void sh64_icache_inv_current_user_range(unsigned long start, unsigned lon
 #define DUMMY_ALLOCO_AREA_SIZE ((L1_CACHE_BYTES << 10) + (1024 * 4))
 static unsigned char dummy_alloco_area[DUMMY_ALLOCO_AREA_SIZE] __cacheline_aligned = { 0, };
 
-static void inline sh64_dcache_purge_sets(int sets_to_purge_base, int n_sets)
+static inline void sh64_dcache_purge_sets(int sets_to_purge_base, int n_sets)
 {
 	/* Purge all ways in a particular block of sets, specified by the base
 	   set number and number of sets.  Can handle wrap-around, if that's
diff --git a/arch/sparc/configs/sparc32_defconfig b/arch/sparc/configs/sparc32_defconfig
index c74d3701ad68..207a43a2d8b3 100644
--- a/arch/sparc/configs/sparc32_defconfig
+++ b/arch/sparc/configs/sparc32_defconfig
@@ -1,4 +1,3 @@
-CONFIG_EXPERIMENTAL=y
 CONFIG_SYSVIPC=y
 CONFIG_POSIX_MQUEUE=y
 CONFIG_LOG_BUF_SHIFT=14
@@ -23,7 +22,6 @@ CONFIG_IP_PNP_DHCP=y
 CONFIG_INET_AH=y
 CONFIG_INET_ESP=y
 CONFIG_INET_IPCOMP=y
-# CONFIG_INET_LRO is not set
 CONFIG_INET6_AH=m
 CONFIG_INET6_ESP=m
 CONFIG_INET6_IPCOMP=m
@@ -69,7 +67,6 @@ CONFIG_EXT2_FS=y
 CONFIG_EXT2_FS_XATTR=y
 CONFIG_EXT2_FS_POSIX_ACL=y
 CONFIG_EXT2_FS_SECURITY=y
-CONFIG_AUTOFS_FS=m
 CONFIG_AUTOFS4_FS=m
 CONFIG_ISO9660_FS=m
 CONFIG_PROC_KCORE=y
@@ -82,7 +79,6 @@ CONFIG_NLS=y
 CONFIG_DEBUG_KERNEL=y
 CONFIG_DETECT_HUNG_TASK=y
 # CONFIG_SCHED_DEBUG is not set
-# CONFIG_RCU_CPU_STALL_DETECTOR is not set
 CONFIG_KGDB=y
 CONFIG_KGDB_TESTS=y
 CONFIG_CRYPTO_NULL=m
diff --git a/arch/sparc/configs/sparc64_defconfig b/arch/sparc/configs/sparc64_defconfig
index b2e650d1764f..ca8609d7292f 100644
--- a/arch/sparc/configs/sparc64_defconfig
+++ b/arch/sparc/configs/sparc64_defconfig
@@ -1,5 +1,4 @@
 CONFIG_64BIT=y
-CONFIG_EXPERIMENTAL=y
 # CONFIG_LOCALVERSION_AUTO is not set
 CONFIG_SYSVIPC=y
 CONFIG_POSIX_MQUEUE=y
@@ -184,7 +183,6 @@ CONFIG_HID_TOPSEED=y
 CONFIG_HID_THRUSTMASTER=y
 CONFIG_HID_ZEROPLUS=y
 CONFIG_USB=y
-# CONFIG_USB_DEVICE_CLASS is not set
 CONFIG_USB_EHCI_HCD=m
 # CONFIG_USB_EHCI_TT_NEWSCHED is not set
 CONFIG_USB_OHCI_HCD=y
@@ -210,8 +208,6 @@ CONFIG_LOCKUP_DETECTOR=y
 CONFIG_DETECT_HUNG_TASK=y
 # CONFIG_SCHED_DEBUG is not set
 CONFIG_SCHEDSTATS=y
-# CONFIG_RCU_CPU_STALL_DETECTOR is not set
-CONFIG_SYSCTL_SYSCALL_CHECK=y
 CONFIG_BLK_DEV_IO_TRACE=y
 CONFIG_UPROBE_EVENTS=y
 CONFIG_KEYS=y
diff --git a/arch/sparc/include/asm/Kbuild b/arch/sparc/include/asm/Kbuild
index e9e837bc3158..80ddc01f57ac 100644
--- a/arch/sparc/include/asm/Kbuild
+++ b/arch/sparc/include/asm/Kbuild
@@ -18,5 +18,4 @@ generic-y += preempt.h
 generic-y += rwsem.h
 generic-y += serial.h
 generic-y += trace_clock.h
-generic-y += types.h
 generic-y += word-at-a-time.h
diff --git a/arch/sparc/include/asm/asm-prototypes.h b/arch/sparc/include/asm/asm-prototypes.h
new file mode 100644
index 000000000000..d381e11c5dbb
--- /dev/null
+++ b/arch/sparc/include/asm/asm-prototypes.h
@@ -0,0 +1,24 @@
+/*
+ * Copyright (c) 2017 Oracle and/or its affiliates. All rights reserved.
+ */
+
+#include <asm/xor.h>
+#include <asm/checksum.h>
+#include <asm/trap_block.h>
+#include <asm/uaccess.h>
+#include <asm/atomic.h>
+#include <asm/ftrace.h>
+#include <asm/cacheflush.h>
+#include <asm/oplib.h>
+#include <linux/atomic.h>
+
+void *__memscan_zero(void *, size_t);
+void *__memscan_generic(void *, int, size_t);
+void *__bzero(void *, size_t);
+void VISenter(void); /* Dummy prototype to supress warning */
+#undef memcpy
+#undef memset
+void *memcpy(void *dest, const void *src, size_t n);
+void *memset(void *s, int c, size_t n);
+typedef int TItype __attribute__((mode(TI)));
+TItype __multi3(TItype a, TItype b);
diff --git a/arch/sparc/include/asm/mmu_context_64.h b/arch/sparc/include/asm/mmu_context_64.h
index 2cddcda4f85f..87841d687f8d 100644
--- a/arch/sparc/include/asm/mmu_context_64.h
+++ b/arch/sparc/include/asm/mmu_context_64.h
@@ -27,9 +27,11 @@ void destroy_context(struct mm_struct *mm);
 void __tsb_context_switch(unsigned long pgd_pa,
 			  struct tsb_config *tsb_base,
 			  struct tsb_config *tsb_huge,
-			  unsigned long tsb_descr_pa);
+			  unsigned long tsb_descr_pa,
+			  unsigned long secondary_ctx);
 
-static inline void tsb_context_switch(struct mm_struct *mm)
+static inline void tsb_context_switch_ctx(struct mm_struct *mm,
+					  unsigned long ctx)
 {
 	__tsb_context_switch(__pa(mm->pgd),
 			     &mm->context.tsb_block[MM_TSB_BASE],
@@ -40,9 +42,12 @@ static inline void tsb_context_switch(struct mm_struct *mm)
 #else
 			     NULL
 #endif
-			     , __pa(&mm->context.tsb_descr[MM_TSB_BASE]));
+			     , __pa(&mm->context.tsb_descr[MM_TSB_BASE]),
+			     ctx);
 }
 
+#define tsb_context_switch(X) tsb_context_switch_ctx(X, 0)
+
 void tsb_grow(struct mm_struct *mm,
 	      unsigned long tsb_index,
 	      unsigned long mm_rss);
@@ -112,8 +117,7 @@ static inline void switch_mm(struct mm_struct *old_mm, struct mm_struct *mm, str
 	 * cpu0 to update it's TSB because at that point the cpu_vm_mask
 	 * only had cpu1 set in it.
 	 */
-	load_secondary_context(mm);
-	tsb_context_switch(mm);
+	tsb_context_switch_ctx(mm, CTX_HWBITS(mm->context));
 
 	/* Any time a processor runs a context on an address space
 	 * for the first time, we must flush that context out of the
diff --git a/arch/sparc/include/asm/nmi.h b/arch/sparc/include/asm/nmi.h
index 26ad2b2607c6..284eac3ffaf2 100644
--- a/arch/sparc/include/asm/nmi.h
+++ b/arch/sparc/include/asm/nmi.h
@@ -7,6 +7,7 @@ void nmi_adjust_hz(unsigned int new_hz);
 
 extern atomic_t nmi_active;
 
+void arch_touch_nmi_watchdog(void);
 void start_nmi_watchdog(void *unused);
 void stop_nmi_watchdog(void *unused);
 
diff --git a/arch/sparc/include/asm/page_32.h b/arch/sparc/include/asm/page_32.h
index 0efd0583a8c9..6249214148c2 100644
--- a/arch/sparc/include/asm/page_32.h
+++ b/arch/sparc/include/asm/page_32.h
@@ -68,6 +68,7 @@ typedef struct { unsigned long iopgprot; } iopgprot_t;
 #define iopgprot_val(x)	((x).iopgprot)
 
 #define __pte(x)	((pte_t) { (x) } )
+#define __pmd(x)	((pmd_t) { { (x) }, })
 #define __iopte(x)	((iopte_t) { (x) } )
 #define __pgd(x)	((pgd_t) { (x) } )
 #define __ctxd(x)	((ctxd_t) { (x) } )
@@ -95,6 +96,7 @@ typedef unsigned long iopgprot_t;
 #define iopgprot_val(x)	(x)
 
 #define __pte(x)	(x)
+#define __pmd(x)	((pmd_t) { { (x) }, })
 #define __iopte(x)	(x)
 #define __pgd(x)	(x)
 #define __ctxd(x)	(x)
diff --git a/arch/sparc/include/asm/spitfire.h b/arch/sparc/include/asm/spitfire.h
index 1d8321c827a8..1b1286d05069 100644
--- a/arch/sparc/include/asm/spitfire.h
+++ b/arch/sparc/include/asm/spitfire.h
@@ -47,10 +47,26 @@
 #define SUN4V_CHIP_NIAGARA5	0x05
 #define SUN4V_CHIP_SPARC_M6	0x06
 #define SUN4V_CHIP_SPARC_M7	0x07
+#define SUN4V_CHIP_SPARC_M8	0x08
 #define SUN4V_CHIP_SPARC64X	0x8a
 #define SUN4V_CHIP_SPARC_SN	0x8b
 #define SUN4V_CHIP_UNKNOWN	0xff
 
+/*
+ * The following CPU_ID_xxx constants are used
+ * to identify the CPU type in the setup phase
+ * (see head_64.S)
+ */
+#define CPU_ID_NIAGARA1		('1')
+#define CPU_ID_NIAGARA2		('2')
+#define CPU_ID_NIAGARA3		('3')
+#define CPU_ID_NIAGARA4		('4')
+#define CPU_ID_NIAGARA5		('5')
+#define CPU_ID_M6		('6')
+#define CPU_ID_M7		('7')
+#define CPU_ID_M8		('8')
+#define CPU_ID_SONOMA1		('N')
+
 #ifndef __ASSEMBLY__
 
 enum ultra_tlb_layout {
diff --git a/arch/sparc/include/asm/trap_block.h b/arch/sparc/include/asm/trap_block.h
index ec9c04de3664..ff05992dae7a 100644
--- a/arch/sparc/include/asm/trap_block.h
+++ b/arch/sparc/include/asm/trap_block.h
@@ -54,6 +54,7 @@ extern struct trap_per_cpu trap_block[NR_CPUS];
 void init_cur_cpu_trap(struct thread_info *);
 void setup_tba(void);
 extern int ncpus_probed;
+extern u64 cpu_mondo_counter[NR_CPUS];
 
 unsigned long real_hard_smp_processor_id(void);
 
diff --git a/arch/sparc/include/asm/uaccess_64.h b/arch/sparc/include/asm/uaccess_64.h
index 113d84eaa15e..6d4c997d1a9e 100644
--- a/arch/sparc/include/asm/uaccess_64.h
+++ b/arch/sparc/include/asm/uaccess_64.h
@@ -9,7 +9,6 @@
 #include <linux/string.h>
 #include <asm/asi.h>
 #include <asm/spitfire.h>
-#include <asm-generic/uaccess-unaligned.h>
 #include <asm/extable_64.h>
 
 #include <asm/processor.h>
diff --git a/arch/sparc/include/uapi/asm/Kbuild b/arch/sparc/include/uapi/asm/Kbuild
index b15bf6bc0e94..2178c78c7c1a 100644
--- a/arch/sparc/include/uapi/asm/Kbuild
+++ b/arch/sparc/include/uapi/asm/Kbuild
@@ -1,2 +1,4 @@
 # UAPI Header export list
 include include/uapi/asm-generic/Kbuild.asm
+
+generic-y += types.h
diff --git a/arch/sparc/include/uapi/asm/ioctls.h b/arch/sparc/include/uapi/asm/ioctls.h
index 6d27398632ea..f5df72b93bb2 100644
--- a/arch/sparc/include/uapi/asm/ioctls.h
+++ b/arch/sparc/include/uapi/asm/ioctls.h
@@ -88,7 +88,7 @@
 #define TIOCGPTN	_IOR('t', 134, unsigned int) /* Get Pty Number */
 #define TIOCSPTLCK	_IOW('t', 135, int) /* Lock/unlock PTY */
 #define TIOCSIG		_IOW('t', 136, int) /* Generate signal on Pty slave */
-#define TIOCGPTPEER	_IOR('t', 137, int) /* Safely open the slave */
+#define TIOCGPTPEER	_IO('t', 137) /* Safely open the slave */
 
 /* Little f */
 #define FIOCLEX		_IO('f', 1)
diff --git a/arch/sparc/kernel/cpu.c b/arch/sparc/kernel/cpu.c
index 493e023a468a..ef4f18f7a674 100644
--- a/arch/sparc/kernel/cpu.c
+++ b/arch/sparc/kernel/cpu.c
@@ -506,6 +506,12 @@ static void __init sun4v_cpu_probe(void)
 		sparc_pmu_type = "sparc-m7";
 		break;
 
+	case SUN4V_CHIP_SPARC_M8:
+		sparc_cpu_type = "SPARC-M8";
+		sparc_fpu_type = "SPARC-M8 integrated FPU";
+		sparc_pmu_type = "sparc-m8";
+		break;
+
 	case SUN4V_CHIP_SPARC_SN:
 		sparc_cpu_type = "SPARC-SN";
 		sparc_fpu_type = "SPARC-SN integrated FPU";
diff --git a/arch/sparc/kernel/cpumap.c b/arch/sparc/kernel/cpumap.c
index 45c820e1cba5..90d550bbfeef 100644
--- a/arch/sparc/kernel/cpumap.c
+++ b/arch/sparc/kernel/cpumap.c
@@ -328,6 +328,7 @@ static int iterate_cpu(struct cpuinfo_tree *t, unsigned int root_index)
 	case SUN4V_CHIP_NIAGARA5:
 	case SUN4V_CHIP_SPARC_M6:
 	case SUN4V_CHIP_SPARC_M7:
+	case SUN4V_CHIP_SPARC_M8:
 	case SUN4V_CHIP_SPARC_SN:
 	case SUN4V_CHIP_SPARC64X:
 		rover_inc_table = niagara_iterate_method;
diff --git a/arch/sparc/kernel/head_64.S b/arch/sparc/kernel/head_64.S
index 41a407328667..78e0211753d2 100644
--- a/arch/sparc/kernel/head_64.S
+++ b/arch/sparc/kernel/head_64.S
@@ -424,22 +424,25 @@ EXPORT_SYMBOL(sun4v_chip_type)
 	 nop
 
 70:	ldub	[%g1 + 7], %g2
-	cmp	%g2, '3'
+	cmp	%g2, CPU_ID_NIAGARA3
 	be,pt	%xcc, 5f
 	 mov	SUN4V_CHIP_NIAGARA3, %g4
-	cmp	%g2, '4'
+	cmp	%g2, CPU_ID_NIAGARA4
 	be,pt	%xcc, 5f
 	 mov	SUN4V_CHIP_NIAGARA4, %g4
-	cmp	%g2, '5'
+	cmp	%g2, CPU_ID_NIAGARA5
 	be,pt	%xcc, 5f
 	 mov	SUN4V_CHIP_NIAGARA5, %g4
-	cmp	%g2, '6'
+	cmp	%g2, CPU_ID_M6
 	be,pt	%xcc, 5f
 	 mov	SUN4V_CHIP_SPARC_M6, %g4
-	cmp	%g2, '7'
+	cmp	%g2, CPU_ID_M7
 	be,pt	%xcc, 5f
 	 mov	SUN4V_CHIP_SPARC_M7, %g4
-	cmp	%g2, 'N'
+	cmp	%g2, CPU_ID_M8
+	be,pt	%xcc, 5f
+	 mov	SUN4V_CHIP_SPARC_M8, %g4
+	cmp	%g2, CPU_ID_SONOMA1
 	be,pt	%xcc, 5f
 	 mov	SUN4V_CHIP_SPARC_SN, %g4
 	ba,pt	%xcc, 49f
@@ -448,10 +451,10 @@ EXPORT_SYMBOL(sun4v_chip_type)
 91:	sethi	%hi(prom_cpu_compatible), %g1
 	or	%g1, %lo(prom_cpu_compatible), %g1
 	ldub	[%g1 + 17], %g2
-	cmp	%g2, '1'
+	cmp	%g2, CPU_ID_NIAGARA1
 	be,pt	%xcc, 5f
 	 mov	SUN4V_CHIP_NIAGARA1, %g4
-	cmp	%g2, '2'
+	cmp	%g2, CPU_ID_NIAGARA2
 	be,pt	%xcc, 5f
 	 mov	SUN4V_CHIP_NIAGARA2, %g4
 	
@@ -602,6 +605,9 @@ niagara_tlb_fixup:
 	cmp	%g1, SUN4V_CHIP_SPARC_M7
 	be,pt	%xcc, niagara4_patch
 	 nop
+	cmp	%g1, SUN4V_CHIP_SPARC_M8
+	be,pt	%xcc, niagara4_patch
+	 nop
 	cmp	%g1, SUN4V_CHIP_SPARC_SN
 	be,pt	%xcc, niagara4_patch
 	 nop
diff --git a/arch/sparc/kernel/mdesc.c b/arch/sparc/kernel/mdesc.c
index e4b4e790bf89..fa466ce45bc9 100644
--- a/arch/sparc/kernel/mdesc.c
+++ b/arch/sparc/kernel/mdesc.c
@@ -205,7 +205,7 @@ static struct mdesc_handle *mdesc_kmalloc(unsigned int mdesc_size)
 	handle_size = (sizeof(struct mdesc_handle) -
 		       sizeof(struct mdesc_hdr) +
 		       mdesc_size);
-	base = kmalloc(handle_size + 15, GFP_KERNEL | __GFP_REPEAT);
+	base = kmalloc(handle_size + 15, GFP_KERNEL | __GFP_RETRY_MAYFAIL);
 	if (!base)
 		return NULL;
 
diff --git a/arch/sparc/kernel/nmi.c b/arch/sparc/kernel/nmi.c
index 95e73c63c99d..048ad783ea3f 100644
--- a/arch/sparc/kernel/nmi.c
+++ b/arch/sparc/kernel/nmi.c
@@ -51,7 +51,7 @@ static DEFINE_PER_CPU(unsigned int, last_irq_sum);
 static DEFINE_PER_CPU(long, alert_counter);
 static DEFINE_PER_CPU(int, nmi_touch);
 
-void touch_nmi_watchdog(void)
+void arch_touch_nmi_watchdog(void)
 {
 	if (atomic_read(&nmi_active)) {
 		int cpu;
@@ -61,10 +61,8 @@ void touch_nmi_watchdog(void)
 				per_cpu(nmi_touch, cpu) = 1;
 		}
 	}
-
-	touch_softlockup_watchdog();
 }
-EXPORT_SYMBOL(touch_nmi_watchdog);
+EXPORT_SYMBOL(arch_touch_nmi_watchdog);
 
 static void die_nmi(const char *str, struct pt_regs *regs, int do_panic)
 {
diff --git a/arch/sparc/kernel/pci_sun4v.c b/arch/sparc/kernel/pci_sun4v.c
index 24f21c726dfa..9ebebf1fd93d 100644
--- a/arch/sparc/kernel/pci_sun4v.c
+++ b/arch/sparc/kernel/pci_sun4v.c
@@ -673,12 +673,14 @@ static void dma_4v_unmap_sg(struct device *dev, struct scatterlist *sglist,
 static int dma_4v_supported(struct device *dev, u64 device_mask)
 {
 	struct iommu *iommu = dev->archdata.iommu;
-	u64 dma_addr_mask;
+	u64 dma_addr_mask = iommu->dma_addr_mask;
 
-	if (device_mask > DMA_BIT_MASK(32) && iommu->atu)
-		dma_addr_mask = iommu->atu->dma_addr_mask;
-	else
-		dma_addr_mask = iommu->dma_addr_mask;
+	if (device_mask > DMA_BIT_MASK(32)) {
+		if (iommu->atu)
+			dma_addr_mask = iommu->atu->dma_addr_mask;
+		else
+			return 0;
+	}
 
 	if ((device_mask & dma_addr_mask) == dma_addr_mask)
 		return 1;
@@ -1264,8 +1266,6 @@ static int pci_sun4v_probe(struct platform_device *op)
 			 * ATU group, but ATU hcalls won't be available.
 			 */
 			hv_atu = false;
-			pr_err(PFX "Could not register hvapi ATU err=%d\n",
-			       err);
 		} else {
 			pr_info(PFX "Registered hvapi ATU major[%lu] minor[%lu]\n",
 				vatu_major, vatu_minor);
diff --git a/arch/sparc/kernel/pcic.c b/arch/sparc/kernel/pcic.c
index a38787b84322..732af9a9f6dd 100644
--- a/arch/sparc/kernel/pcic.c
+++ b/arch/sparc/kernel/pcic.c
@@ -602,7 +602,7 @@ void pcibios_fixup_bus(struct pci_bus *bus)
 {
 	struct pci_dev *dev;
 	int i, has_io, has_mem;
-	unsigned int cmd;
+	unsigned int cmd = 0;
 	struct linux_pcic *pcic;
 	/* struct linux_pbm_info* pbm = &pcic->pbm; */
 	int node;
diff --git a/arch/sparc/kernel/setup_64.c b/arch/sparc/kernel/setup_64.c
index 4d9c3e13c150..150ee7d4b059 100644
--- a/arch/sparc/kernel/setup_64.c
+++ b/arch/sparc/kernel/setup_64.c
@@ -288,10 +288,17 @@ static void __init sun4v_patch(void)
 
 	sun4v_patch_2insn_range(&__sun4v_2insn_patch,
 				&__sun4v_2insn_patch_end);
-	if (sun4v_chip_type == SUN4V_CHIP_SPARC_M7 ||
-	    sun4v_chip_type == SUN4V_CHIP_SPARC_SN)
+
+	switch (sun4v_chip_type) {
+	case SUN4V_CHIP_SPARC_M7:
+	case SUN4V_CHIP_SPARC_M8:
+	case SUN4V_CHIP_SPARC_SN:
 		sun_m7_patch_2insn_range(&__sun_m7_2insn_patch,
 					 &__sun_m7_2insn_patch_end);
+		break;
+	default:
+		break;
+	}
 
 	sun4v_hvapi_init();
 }
@@ -529,6 +536,7 @@ static void __init init_sparc64_elf_hwcap(void)
 		    sun4v_chip_type == SUN4V_CHIP_NIAGARA5 ||
 		    sun4v_chip_type == SUN4V_CHIP_SPARC_M6 ||
 		    sun4v_chip_type == SUN4V_CHIP_SPARC_M7 ||
+		    sun4v_chip_type == SUN4V_CHIP_SPARC_M8 ||
 		    sun4v_chip_type == SUN4V_CHIP_SPARC_SN ||
 		    sun4v_chip_type == SUN4V_CHIP_SPARC64X)
 			cap |= HWCAP_SPARC_BLKINIT;
@@ -538,6 +546,7 @@ static void __init init_sparc64_elf_hwcap(void)
 		    sun4v_chip_type == SUN4V_CHIP_NIAGARA5 ||
 		    sun4v_chip_type == SUN4V_CHIP_SPARC_M6 ||
 		    sun4v_chip_type == SUN4V_CHIP_SPARC_M7 ||
+		    sun4v_chip_type == SUN4V_CHIP_SPARC_M8 ||
 		    sun4v_chip_type == SUN4V_CHIP_SPARC_SN ||
 		    sun4v_chip_type == SUN4V_CHIP_SPARC64X)
 			cap |= HWCAP_SPARC_N2;
@@ -568,6 +577,7 @@ static void __init init_sparc64_elf_hwcap(void)
 			    sun4v_chip_type == SUN4V_CHIP_NIAGARA5 ||
 			    sun4v_chip_type == SUN4V_CHIP_SPARC_M6 ||
 			    sun4v_chip_type == SUN4V_CHIP_SPARC_M7 ||
+			    sun4v_chip_type == SUN4V_CHIP_SPARC_M8 ||
 			    sun4v_chip_type == SUN4V_CHIP_SPARC_SN ||
 			    sun4v_chip_type == SUN4V_CHIP_SPARC64X)
 				cap |= (AV_SPARC_VIS | AV_SPARC_VIS2 |
@@ -578,6 +588,7 @@ static void __init init_sparc64_elf_hwcap(void)
 			    sun4v_chip_type == SUN4V_CHIP_NIAGARA5 ||
 			    sun4v_chip_type == SUN4V_CHIP_SPARC_M6 ||
 			    sun4v_chip_type == SUN4V_CHIP_SPARC_M7 ||
+			    sun4v_chip_type == SUN4V_CHIP_SPARC_M8 ||
 			    sun4v_chip_type == SUN4V_CHIP_SPARC_SN ||
 			    sun4v_chip_type == SUN4V_CHIP_SPARC64X)
 				cap |= (AV_SPARC_VIS3 | AV_SPARC_HPC |
diff --git a/arch/sparc/kernel/smp_64.c b/arch/sparc/kernel/smp_64.c
index fdf31040a7dc..3218bc43302e 100644
--- a/arch/sparc/kernel/smp_64.c
+++ b/arch/sparc/kernel/smp_64.c
@@ -622,22 +622,48 @@ retry:
 	}
 }
 
-/* Multi-cpu list version.  */
+#define	CPU_MONDO_COUNTER(cpuid)	(cpu_mondo_counter[cpuid])
+#define	MONDO_USEC_WAIT_MIN		2
+#define	MONDO_USEC_WAIT_MAX		100
+#define	MONDO_RETRY_LIMIT		500000
+
+/* Multi-cpu list version.
+ *
+ * Deliver xcalls to 'cnt' number of cpus in 'cpu_list'.
+ * Sometimes not all cpus receive the mondo, requiring us to re-send
+ * the mondo until all cpus have received, or cpus are truly stuck
+ * unable to receive mondo, and we timeout.
+ * Occasionally a target cpu strand is borrowed briefly by hypervisor to
+ * perform guest service, such as PCIe error handling. Consider the
+ * service time, 1 second overall wait is reasonable for 1 cpu.
+ * Here two in-between mondo check wait time are defined: 2 usec for
+ * single cpu quick turn around and up to 100usec for large cpu count.
+ * Deliver mondo to large number of cpus could take longer, we adjusts
+ * the retry count as long as target cpus are making forward progress.
+ */
 static void hypervisor_xcall_deliver(struct trap_per_cpu *tb, int cnt)
 {
-	int retries, this_cpu, prev_sent, i, saw_cpu_error;
+	int this_cpu, tot_cpus, prev_sent, i, rem;
+	int usec_wait, retries, tot_retries;
+	u16 first_cpu = 0xffff;
+	unsigned long xc_rcvd = 0;
 	unsigned long status;
+	int ecpuerror_id = 0;
+	int enocpu_id = 0;
 	u16 *cpu_list;
+	u16 cpu;
 
 	this_cpu = smp_processor_id();
-
 	cpu_list = __va(tb->cpu_list_pa);
-
-	saw_cpu_error = 0;
-	retries = 0;
+	usec_wait = cnt * MONDO_USEC_WAIT_MIN;
+	if (usec_wait > MONDO_USEC_WAIT_MAX)
+		usec_wait = MONDO_USEC_WAIT_MAX;
+	retries = tot_retries = 0;
+	tot_cpus = cnt;
 	prev_sent = 0;
+
 	do {
-		int forward_progress, n_sent;
+		int n_sent, mondo_delivered, target_cpu_busy;
 
 		status = sun4v_cpu_mondo_send(cnt,
 					      tb->cpu_list_pa,
@@ -645,94 +671,113 @@ static void hypervisor_xcall_deliver(struct trap_per_cpu *tb, int cnt)
 
 		/* HV_EOK means all cpus received the xcall, we're done.  */
 		if (likely(status == HV_EOK))
-			break;
+			goto xcall_done;
+
+		/* If not these non-fatal errors, panic */
+		if (unlikely((status != HV_EWOULDBLOCK) &&
+			(status != HV_ECPUERROR) &&
+			(status != HV_ENOCPU)))
+			goto fatal_errors;
 
 		/* First, see if we made any forward progress.
 		 *
+		 * Go through the cpu_list, count the target cpus that have
+		 * received our mondo (n_sent), and those that did not (rem).
+		 * Re-pack cpu_list with the cpus remain to be retried in the
+		 * front - this simplifies tracking the truly stalled cpus.
+		 *
 		 * The hypervisor indicates successful sends by setting
 		 * cpu list entries to the value 0xffff.
+		 *
+		 * EWOULDBLOCK means some target cpus did not receive the
+		 * mondo and retry usually helps.
+		 *
+		 * ECPUERROR means at least one target cpu is in error state,
+		 * it's usually safe to skip the faulty cpu and retry.
+		 *
+		 * ENOCPU means one of the target cpu doesn't belong to the
+		 * domain, perhaps offlined which is unexpected, but not
+		 * fatal and it's okay to skip the offlined cpu.
 		 */
+		rem = 0;
 		n_sent = 0;
 		for (i = 0; i < cnt; i++) {
-			if (likely(cpu_list[i] == 0xffff))
+			cpu = cpu_list[i];
+			if (likely(cpu == 0xffff)) {
 				n_sent++;
+			} else if ((status == HV_ECPUERROR) &&
+				(sun4v_cpu_state(cpu) == HV_CPU_STATE_ERROR)) {
+				ecpuerror_id = cpu + 1;
+			} else if (status == HV_ENOCPU && !cpu_online(cpu)) {
+				enocpu_id = cpu + 1;
+			} else {
+				cpu_list[rem++] = cpu;
+			}
 		}
 
-		forward_progress = 0;
-		if (n_sent > prev_sent)
-			forward_progress = 1;
+		/* No cpu remained, we're done. */
+		if (rem == 0)
+			break;
 
-		prev_sent = n_sent;
+		/* Otherwise, update the cpu count for retry. */
+		cnt = rem;
 
-		/* If we get a HV_ECPUERROR, then one or more of the cpus
-		 * in the list are in error state.  Use the cpu_state()
-		 * hypervisor call to find out which cpus are in error state.
+		/* Record the overall number of mondos received by the
+		 * first of the remaining cpus.
 		 */
-		if (unlikely(status == HV_ECPUERROR)) {
-			for (i = 0; i < cnt; i++) {
-				long err;
-				u16 cpu;
+		if (first_cpu != cpu_list[0]) {
+			first_cpu = cpu_list[0];
+			xc_rcvd = CPU_MONDO_COUNTER(first_cpu);
+		}
 
-				cpu = cpu_list[i];
-				if (cpu == 0xffff)
-					continue;
+		/* Was any mondo delivered successfully? */
+		mondo_delivered = (n_sent > prev_sent);
+		prev_sent = n_sent;
 
-				err = sun4v_cpu_state(cpu);
-				if (err == HV_CPU_STATE_ERROR) {
-					saw_cpu_error = (cpu + 1);
-					cpu_list[i] = 0xffff;
-				}
-			}
-		} else if (unlikely(status != HV_EWOULDBLOCK))
-			goto fatal_mondo_error;
+		/* or, was any target cpu busy processing other mondos? */
+		target_cpu_busy = (xc_rcvd < CPU_MONDO_COUNTER(first_cpu));
+		xc_rcvd = CPU_MONDO_COUNTER(first_cpu);
 
-		/* Don't bother rewriting the CPU list, just leave the
-		 * 0xffff and non-0xffff entries in there and the
-		 * hypervisor will do the right thing.
-		 *
-		 * Only advance timeout state if we didn't make any
-		 * forward progress.
+		/* Retry count is for no progress. If we're making progress,
+		 * reset the retry count.
 		 */
-		if (unlikely(!forward_progress)) {
-			if (unlikely(++retries > 10000))
-				goto fatal_mondo_timeout;
-
-			/* Delay a little bit to let other cpus catch up
-			 * on their cpu mondo queue work.
-			 */
-			udelay(2 * cnt);
+		if (likely(mondo_delivered || target_cpu_busy)) {
+			tot_retries += retries;
+			retries = 0;
+		} else if (unlikely(retries > MONDO_RETRY_LIMIT)) {
+			goto fatal_mondo_timeout;
 		}
-	} while (1);
 
-	if (unlikely(saw_cpu_error))
-		goto fatal_mondo_cpu_error;
+		/* Delay a little bit to let other cpus catch up on
+		 * their cpu mondo queue work.
+		 */
+		if (!mondo_delivered)
+			udelay(usec_wait);
 
-	return;
+		retries++;
+	} while (1);
 
-fatal_mondo_cpu_error:
-	printk(KERN_CRIT "CPU[%d]: SUN4V mondo cpu error, some target cpus "
-	       "(including %d) were in error state\n",
-	       this_cpu, saw_cpu_error - 1);
+xcall_done:
+	if (unlikely(ecpuerror_id > 0)) {
+		pr_crit("CPU[%d]: SUN4V mondo cpu error, target cpu(%d) was in error state\n",
+		       this_cpu, ecpuerror_id - 1);
+	} else if (unlikely(enocpu_id > 0)) {
+		pr_crit("CPU[%d]: SUN4V mondo cpu error, target cpu(%d) does not belong to the domain\n",
+		       this_cpu, enocpu_id - 1);
+	}
 	return;
 
+fatal_errors:
+	/* fatal errors include bad alignment, etc */
+	pr_crit("CPU[%d]: Args were cnt(%d) cpulist_pa(%lx) mondo_block_pa(%lx)\n",
+	       this_cpu, tot_cpus, tb->cpu_list_pa, tb->cpu_mondo_block_pa);
+	panic("Unexpected SUN4V mondo error %lu\n", status);
+
 fatal_mondo_timeout:
-	printk(KERN_CRIT "CPU[%d]: SUN4V mondo timeout, no forward "
-	       " progress after %d retries.\n",
-	       this_cpu, retries);
-	goto dump_cpu_list_and_out;
-
-fatal_mondo_error:
-	printk(KERN_CRIT "CPU[%d]: Unexpected SUN4V mondo error %lu\n",
-	       this_cpu, status);
-	printk(KERN_CRIT "CPU[%d]: Args were cnt(%d) cpulist_pa(%lx) "
-	       "mondo_block_pa(%lx)\n",
-	       this_cpu, cnt, tb->cpu_list_pa, tb->cpu_mondo_block_pa);
-
-dump_cpu_list_and_out:
-	printk(KERN_CRIT "CPU[%d]: CPU list [ ", this_cpu);
-	for (i = 0; i < cnt; i++)
-		printk("%u ", cpu_list[i]);
-	printk("]\n");
+	/* some cpus being non-responsive to the cpu mondo */
+	pr_crit("CPU[%d]: SUN4V mondo timeout, cpu(%d) made no forward progress after %d retries. Total target cpus(%d).\n",
+	       this_cpu, first_cpu, (tot_retries + retries), tot_cpus);
+	panic("SUN4V mondo timeout panic\n");
 }
 
 static void (*xcall_deliver_impl)(struct trap_per_cpu *, int);
diff --git a/arch/sparc/kernel/sun4v_ivec.S b/arch/sparc/kernel/sun4v_ivec.S
index 559bc5e9c199..34631995859a 100644
--- a/arch/sparc/kernel/sun4v_ivec.S
+++ b/arch/sparc/kernel/sun4v_ivec.S
@@ -26,6 +26,21 @@ sun4v_cpu_mondo:
 	ldxa	[%g0] ASI_SCRATCHPAD, %g4
 	sub	%g4, TRAP_PER_CPU_FAULT_INFO, %g4
 
+	/* Get smp_processor_id() into %g3 */
+	sethi	%hi(trap_block), %g5
+	or	%g5, %lo(trap_block), %g5
+	sub	%g4, %g5, %g3
+	srlx	%g3, TRAP_BLOCK_SZ_SHIFT, %g3
+
+	/* Increment cpu_mondo_counter[smp_processor_id()] */
+	sethi	%hi(cpu_mondo_counter), %g5
+	or	%g5, %lo(cpu_mondo_counter), %g5
+	sllx	%g3, 3, %g3
+	add	%g5, %g3, %g5
+	ldx	[%g5], %g3
+	add	%g3, 1, %g3
+	stx	%g3, [%g5]
+
 	/* Get CPU mondo queue base phys address into %g7.  */
 	ldx	[%g4 + TRAP_PER_CPU_CPU_MONDO_PA], %g7
 
diff --git a/arch/sparc/kernel/traps_64.c b/arch/sparc/kernel/traps_64.c
index 196ee5eb4d48..ad31af1dd726 100644
--- a/arch/sparc/kernel/traps_64.c
+++ b/arch/sparc/kernel/traps_64.c
@@ -2733,6 +2733,7 @@ void do_getpsr(struct pt_regs *regs)
 	}
 }
 
+u64 cpu_mondo_counter[NR_CPUS] = {0};
 struct trap_per_cpu trap_block[NR_CPUS];
 EXPORT_SYMBOL(trap_block);
 
diff --git a/arch/sparc/kernel/tsb.S b/arch/sparc/kernel/tsb.S
index 07c0df924960..db872dbfafe9 100644
--- a/arch/sparc/kernel/tsb.S
+++ b/arch/sparc/kernel/tsb.S
@@ -360,6 +360,7 @@ tsb_flush:
 	 * %o1:	TSB base config pointer
 	 * %o2:	TSB huge config pointer, or NULL if none
 	 * %o3:	Hypervisor TSB descriptor physical address
+	 * %o4: Secondary context to load, if non-zero
 	 *
 	 * We have to run this whole thing with interrupts
 	 * disabled so that the current cpu doesn't change
@@ -372,6 +373,17 @@ __tsb_context_switch:
 	rdpr	%pstate, %g1
 	wrpr	%g1, PSTATE_IE, %pstate
 
+	brz,pn	%o4, 1f
+	 mov	SECONDARY_CONTEXT, %o5
+
+661:	stxa	%o4, [%o5] ASI_DMMU
+	.section .sun4v_1insn_patch, "ax"
+	.word	661b
+	stxa	%o4, [%o5] ASI_MMU
+	.previous
+	flush	%g6
+
+1:
 	TRAP_LOAD_TRAP_BLOCK(%g2, %g3)
 
 	stx	%o0, [%g2 + TRAP_PER_CPU_PGD_PADDR]
diff --git a/arch/sparc/lib/U3memcpy.S b/arch/sparc/lib/U3memcpy.S
index 54f98706b03b..5a8cb37f0a3b 100644
--- a/arch/sparc/lib/U3memcpy.S
+++ b/arch/sparc/lib/U3memcpy.S
@@ -145,13 +145,13 @@ ENDPROC(U3_retl_o2_plus_GS_plus_0x08)
 ENTRY(U3_retl_o2_and_7_plus_GS)
 	and	%o2, 7, %o2
 	retl
-	 add	%o2, GLOBAL_SPARE, %o2
+	 add	%o2, GLOBAL_SPARE, %o0
 ENDPROC(U3_retl_o2_and_7_plus_GS)
 ENTRY(U3_retl_o2_and_7_plus_GS_plus_8)
 	add	GLOBAL_SPARE, 8, GLOBAL_SPARE
 	and	%o2, 7, %o2
 	retl
-	 add	%o2, GLOBAL_SPARE, %o2
+	 add	%o2, GLOBAL_SPARE, %o0
 ENDPROC(U3_retl_o2_and_7_plus_GS_plus_8)
 #endif
 
diff --git a/arch/sparc/lib/atomic_64.S b/arch/sparc/lib/atomic_64.S
index 1c6a1bde5138..ce17c3094ba6 100644
--- a/arch/sparc/lib/atomic_64.S
+++ b/arch/sparc/lib/atomic_64.S
@@ -62,19 +62,23 @@ ENTRY(atomic_fetch_##op) /* %o0 = increment, %o1 = atomic_ptr */	\
 ENDPROC(atomic_fetch_##op);						\
 EXPORT_SYMBOL(atomic_fetch_##op);
 
-#define ATOMIC_OPS(op) ATOMIC_OP(op) ATOMIC_OP_RETURN(op) ATOMIC_FETCH_OP(op)
+ATOMIC_OP(add)
+ATOMIC_OP_RETURN(add)
+ATOMIC_FETCH_OP(add)
 
-ATOMIC_OPS(add)
-ATOMIC_OPS(sub)
+ATOMIC_OP(sub)
+ATOMIC_OP_RETURN(sub)
+ATOMIC_FETCH_OP(sub)
 
-#undef ATOMIC_OPS
-#define ATOMIC_OPS(op) ATOMIC_OP(op) ATOMIC_FETCH_OP(op)
+ATOMIC_OP(and)
+ATOMIC_FETCH_OP(and)
 
-ATOMIC_OPS(and)
-ATOMIC_OPS(or)
-ATOMIC_OPS(xor)
+ATOMIC_OP(or)
+ATOMIC_FETCH_OP(or)
+
+ATOMIC_OP(xor)
+ATOMIC_FETCH_OP(xor)
 
-#undef ATOMIC_OPS
 #undef ATOMIC_FETCH_OP
 #undef ATOMIC_OP_RETURN
 #undef ATOMIC_OP
@@ -124,19 +128,23 @@ ENTRY(atomic64_fetch_##op) /* %o0 = increment, %o1 = atomic_ptr */	\
 ENDPROC(atomic64_fetch_##op);						\
 EXPORT_SYMBOL(atomic64_fetch_##op);
 
-#define ATOMIC64_OPS(op) ATOMIC64_OP(op) ATOMIC64_OP_RETURN(op) ATOMIC64_FETCH_OP(op)
+ATOMIC64_OP(add)
+ATOMIC64_OP_RETURN(add)
+ATOMIC64_FETCH_OP(add)
+
+ATOMIC64_OP(sub)
+ATOMIC64_OP_RETURN(sub)
+ATOMIC64_FETCH_OP(sub)
 
-ATOMIC64_OPS(add)
-ATOMIC64_OPS(sub)
+ATOMIC64_OP(and)
+ATOMIC64_FETCH_OP(and)
 
-#undef ATOMIC64_OPS
-#define ATOMIC64_OPS(op) ATOMIC64_OP(op) ATOMIC64_FETCH_OP(op)
+ATOMIC64_OP(or)
+ATOMIC64_FETCH_OP(or)
 
-ATOMIC64_OPS(and)
-ATOMIC64_OPS(or)
-ATOMIC64_OPS(xor)
+ATOMIC64_OP(xor)
+ATOMIC64_FETCH_OP(xor)
 
-#undef ATOMIC64_OPS
 #undef ATOMIC64_FETCH_OP
 #undef ATOMIC64_OP_RETURN
 #undef ATOMIC64_OP
diff --git a/arch/sparc/lib/checksum_64.S b/arch/sparc/lib/checksum_64.S
index f6732174fe6b..6cfa521f444d 100644
--- a/arch/sparc/lib/checksum_64.S
+++ b/arch/sparc/lib/checksum_64.S
@@ -38,6 +38,7 @@ csum_partial_fix_alignment:
 
 	.align		32
 	.globl		csum_partial
+	.type		csum_partial,#function
 	EXPORT_SYMBOL(csum_partial)
 csum_partial:		/* %o0=buff, %o1=len, %o2=sum */
 	prefetch	[%o0 + 0x000], #n_reads
diff --git a/arch/sparc/lib/csum_copy.S b/arch/sparc/lib/csum_copy.S
index 0ecbafc30fd0..b1051e77c49a 100644
--- a/arch/sparc/lib/csum_copy.S
+++ b/arch/sparc/lib/csum_copy.S
@@ -65,6 +65,7 @@
 	 add		%o5, %o4, %o4
 
 	.globl		FUNC_NAME
+	.type		FUNC_NAME,#function
 	EXPORT_SYMBOL(FUNC_NAME)
 FUNC_NAME:		/* %o0=src, %o1=dst, %o2=len, %o3=sum */
 	LOAD(prefetch, %o0 + 0x000, #n_reads)
diff --git a/arch/sparc/lib/memscan_64.S b/arch/sparc/lib/memscan_64.S
index daa96f4b03e6..5efee1f4be36 100644
--- a/arch/sparc/lib/memscan_64.S
+++ b/arch/sparc/lib/memscan_64.S
@@ -14,6 +14,8 @@
 	.text
 	.align	32
 	.globl		__memscan_zero, __memscan_generic
+	.type		__memscan_zero,#function
+	.type		__memscan_generic,#function
 	.globl		memscan
 	EXPORT_SYMBOL(__memscan_zero)
 	EXPORT_SYMBOL(__memscan_generic)
diff --git a/arch/sparc/lib/memset.S b/arch/sparc/lib/memset.S
index bb539b42b088..e23338dbfc43 100644
--- a/arch/sparc/lib/memset.S
+++ b/arch/sparc/lib/memset.S
@@ -63,6 +63,7 @@
 __bzero_begin:
 
 	.globl	__bzero
+	.type	__bzero,#function
 	.globl	memset
 	EXPORT_SYMBOL(__bzero)
 	EXPORT_SYMBOL(memset)
diff --git a/arch/sparc/lib/multi3.S b/arch/sparc/lib/multi3.S
index d6b6c97fe3c7..703127aaf4a5 100644
--- a/arch/sparc/lib/multi3.S
+++ b/arch/sparc/lib/multi3.S
@@ -5,26 +5,26 @@
 	.align	4
 ENTRY(__multi3) /* %o0 = u, %o1 = v */
 	mov	%o1, %g1
-	srl	%o3, 0, %g4
-	mulx	%g4, %g1, %o1
+	srl	%o3, 0, %o4
+	mulx	%o4, %g1, %o1
 	srlx	%g1, 0x20, %g3
-	mulx	%g3, %g4, %g5
-	sllx	%g5, 0x20, %o5
-	srl	%g1, 0, %g4
+	mulx	%g3, %o4, %g7
+	sllx	%g7, 0x20, %o5
+	srl	%g1, 0, %o4
 	sub	%o1, %o5, %o5
 	srlx	%o5, 0x20, %o5
-	addcc	%g5, %o5, %g5
+	addcc	%g7, %o5, %g7
 	srlx	%o3, 0x20, %o5
-	mulx	%g4, %o5, %g4
+	mulx	%o4, %o5, %o4
 	mulx	%g3, %o5, %o5
 	sethi	%hi(0x80000000), %g3
-	addcc	%g5, %g4, %g5
-	srlx	%g5, 0x20, %g5
+	addcc	%g7, %o4, %g7
+	srlx	%g7, 0x20, %g7
 	add	%g3, %g3, %g3
 	movcc	%xcc, %g0, %g3
-	addcc	%o5, %g5, %o5
-	sllx	%g4, 0x20, %g4
-	add	%o1, %g4, %o1
+	addcc	%o5, %g7, %o5
+	sllx	%o4, 0x20, %o4
+	add	%o1, %o4, %o1
 	add	%o5, %g3, %g2
 	mulx	%g1, %o2, %g1
 	add	%g1, %g2, %g1
diff --git a/arch/sparc/mm/gup.c b/arch/sparc/mm/gup.c
index cd0e32bbcb1d..f80cfc64c55b 100644
--- a/arch/sparc/mm/gup.c
+++ b/arch/sparc/mm/gup.c
@@ -78,8 +78,8 @@ static int gup_huge_pmd(pmd_t *pmdp, pmd_t pmd, unsigned long addr,
 		return 0;
 
 	refs = 0;
-	head = pmd_page(pmd);
-	page = head + ((addr & ~PMD_MASK) >> PAGE_SHIFT);
+	page = pmd_page(pmd) + ((addr & ~PMD_MASK) >> PAGE_SHIFT);
+	head = compound_head(page);
 	do {
 		VM_BUG_ON(compound_head(page) != head);
 		pages[*nr] = page;
diff --git a/arch/sparc/mm/init_64.c b/arch/sparc/mm/init_64.c
index 3c40ebd50f92..afa0099f3748 100644
--- a/arch/sparc/mm/init_64.c
+++ b/arch/sparc/mm/init_64.c
@@ -325,6 +325,29 @@ static void __update_mmu_tsb_insert(struct mm_struct *mm, unsigned long tsb_inde
 }
 
 #ifdef CONFIG_HUGETLB_PAGE
+static void __init add_huge_page_size(unsigned long size)
+{
+	unsigned int order;
+
+	if (size_to_hstate(size))
+		return;
+
+	order = ilog2(size) - PAGE_SHIFT;
+	hugetlb_add_hstate(order);
+}
+
+static int __init hugetlbpage_init(void)
+{
+	add_huge_page_size(1UL << HPAGE_64K_SHIFT);
+	add_huge_page_size(1UL << HPAGE_SHIFT);
+	add_huge_page_size(1UL << HPAGE_256MB_SHIFT);
+	add_huge_page_size(1UL << HPAGE_2GB_SHIFT);
+
+	return 0;
+}
+
+arch_initcall(hugetlbpage_init);
+
 static int __init setup_hugepagesz(char *string)
 {
 	unsigned long long hugepage_size;
@@ -364,7 +387,7 @@ static int __init setup_hugepagesz(char *string)
 		goto out;
 	}
 
-	hugetlb_add_hstate(hugepage_shift - PAGE_SHIFT);
+	add_huge_page_size(hugepage_size);
 	rc = 1;
 
 out:
@@ -1921,12 +1944,22 @@ static void __init setup_page_offset(void)
 			break;
 		case SUN4V_CHIP_SPARC_M7:
 		case SUN4V_CHIP_SPARC_SN:
-		default:
 			/* M7 and later support 52-bit virtual addresses.  */
 			sparc64_va_hole_top =    0xfff8000000000000UL;
 			sparc64_va_hole_bottom = 0x0008000000000000UL;
 			max_phys_bits = 49;
 			break;
+		case SUN4V_CHIP_SPARC_M8:
+		default:
+			/* M8 and later support 54-bit virtual addresses.
+			 * However, restricting M8 and above VA bits to 53
+			 * as 4-level page table cannot support more than
+			 * 53 VA bits.
+			 */
+			sparc64_va_hole_top =    0xfff0000000000000UL;
+			sparc64_va_hole_bottom = 0x0010000000000000UL;
+			max_phys_bits = 51;
+			break;
 		}
 	}
 
@@ -2138,6 +2171,7 @@ static void __init sun4v_linear_pte_xor_finalize(void)
 	 */
 	switch (sun4v_chip_type) {
 	case SUN4V_CHIP_SPARC_M7:
+	case SUN4V_CHIP_SPARC_M8:
 	case SUN4V_CHIP_SPARC_SN:
 		pagecv_flag = 0x00;
 		break;
@@ -2290,6 +2324,7 @@ void __init paging_init(void)
 	 */
 	switch (sun4v_chip_type) {
 	case SUN4V_CHIP_SPARC_M7:
+	case SUN4V_CHIP_SPARC_M8:
 	case SUN4V_CHIP_SPARC_SN:
 		page_cache4v_flag = _PAGE_CP_4V;
 		break;
diff --git a/arch/sparc/power/hibernate.c b/arch/sparc/power/hibernate.c
index 17bd2e167e07..df707a8ad311 100644
--- a/arch/sparc/power/hibernate.c
+++ b/arch/sparc/power/hibernate.c
@@ -35,6 +35,5 @@ void restore_processor_state(void)
 {
 	struct mm_struct *mm = current->active_mm;
 
-	load_secondary_context(mm);
-	tsb_context_switch(mm);
+	tsb_context_switch_ctx(mm, CTX_HWBITS(mm->context));
 }
diff --git a/arch/tile/include/asm/Kbuild b/arch/tile/include/asm/Kbuild
index 16f0b08c8ce9..d28d2b8932c7 100644
--- a/arch/tile/include/asm/Kbuild
+++ b/arch/tile/include/asm/Kbuild
@@ -2,37 +2,18 @@ generic-y += bug.h
 generic-y += bugs.h
 generic-y += clkdev.h
 generic-y += emergency-restart.h
-generic-y += errno.h
 generic-y += exec.h
 generic-y += extable.h
 generic-y += fb.h
-generic-y += fcntl.h
 generic-y += hw_irq.h
-generic-y += ioctl.h
-generic-y += ioctls.h
-generic-y += ipcbuf.h
 generic-y += irq_regs.h
 generic-y += local.h
 generic-y += local64.h
 generic-y += mcs_spinlock.h
 generic-y += mm-arch-hooks.h
-generic-y += msgbuf.h
-generic-y += param.h
 generic-y += parport.h
-generic-y += poll.h
-generic-y += posix_types.h
 generic-y += preempt.h
-generic-y += resource.h
 generic-y += seccomp.h
-generic-y += sembuf.h
 generic-y += serial.h
-generic-y += shmbuf.h
-generic-y += shmparam.h
-generic-y += socket.h
-generic-y += sockios.h
-generic-y += statfs.h
-generic-y += termbits.h
-generic-y += termios.h
 generic-y += trace_clock.h
-generic-y += types.h
 generic-y += xor.h
diff --git a/arch/tile/include/asm/uaccess.h b/arch/tile/include/asm/uaccess.h
index d0c79c1c54b4..cb4fbe7e4f88 100644
--- a/arch/tile/include/asm/uaccess.h
+++ b/arch/tile/include/asm/uaccess.h
@@ -19,7 +19,6 @@
  * User space memory access functions
  */
 #include <linux/mm.h>
-#include <asm-generic/uaccess-unaligned.h>
 #include <asm/processor.h>
 #include <asm/page.h>
 
diff --git a/arch/tile/include/uapi/arch/abi.h b/arch/tile/include/uapi/arch/abi.h
index c55a3d432644..328e62260272 100644
--- a/arch/tile/include/uapi/arch/abi.h
+++ b/arch/tile/include/uapi/arch/abi.h
@@ -20,58 +20,17 @@
 
 #ifndef __ARCH_ABI_H__
 
-#if !defined __need_int_reg_t && !defined __DOXYGEN__
-# define __ARCH_ABI_H__
-# include <arch/chip.h>
-#endif
-
-/* Provide the basic machine types. */
-#ifndef __INT_REG_BITS
-
-/** Number of bits in a register. */
-#if defined __tilegx__
-# define __INT_REG_BITS 64
-#elif defined __tilepro__
-# define __INT_REG_BITS 32
-#elif !defined __need_int_reg_t
+#ifndef __tile__   /* support uncommon use of arch headers in non-tile builds */
 # include <arch/chip.h>
 # define __INT_REG_BITS CHIP_WORD_SIZE()
-#else
-# error Unrecognized architecture with __need_int_reg_t
-#endif
-
-#if __INT_REG_BITS == 64
-
-#ifndef __ASSEMBLER__
-/** Unsigned type that can hold a register. */
-typedef unsigned long long __uint_reg_t;
-
-/** Signed type that can hold a register. */
-typedef long long __int_reg_t;
-#endif
-
-/** String prefix to use for printf(). */
-#define __INT_REG_FMT "ll"
-
-#else
-
-#ifndef __ASSEMBLER__
-/** Unsigned type that can hold a register. */
-typedef unsigned long __uint_reg_t;
-
-/** Signed type that can hold a register. */
-typedef long __int_reg_t;
-#endif
-
-/** String prefix to use for printf(). */
-#define __INT_REG_FMT "l"
-
 #endif
-#endif /* __INT_REG_BITS */
 
+#include <arch/intreg.h>
 
+/* __need_int_reg_t is deprecated: just include <arch/intreg.h> */
 #ifndef __need_int_reg_t
 
+#define __ARCH_ABI_H__
 
 #ifndef __ASSEMBLER__
 /** Unsigned type that can hold a register. */
diff --git a/arch/tile/include/uapi/arch/intreg.h b/arch/tile/include/uapi/arch/intreg.h
new file mode 100644
index 000000000000..1cf2fbf74306
--- /dev/null
+++ b/arch/tile/include/uapi/arch/intreg.h
@@ -0,0 +1,70 @@
+/*
+ * Copyright 2017 Tilera Corporation. All Rights Reserved.
+ *
+ *   This program is free software; you can redistribute it and/or
+ *   modify it under the terms of the GNU General Public License
+ *   as published by the Free Software Foundation, version 2.
+ *
+ *   This program is distributed in the hope that it will be useful, but
+ *   WITHOUT ANY WARRANTY; without even the implied warranty of
+ *   MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, GOOD TITLE or
+ *   NON INFRINGEMENT.  See the GNU General Public License for
+ *   more details.
+ */
+
+/**
+ * @file
+ *
+ * Provide types and defines for the type that can hold a register,
+ * in the implementation namespace.
+ */
+
+#ifndef __ARCH_INTREG_H__
+#define __ARCH_INTREG_H__
+
+/*
+ * Get number of bits in a register.  __INT_REG_BITS may be defined
+ * prior to including this header to force a particular bit width.
+ */
+
+#ifndef __INT_REG_BITS
+# if defined __tilegx__
+#  define __INT_REG_BITS 64
+# elif defined __tilepro__
+#  define __INT_REG_BITS 32
+# else
+#  error Unrecognized architecture
+# endif
+#endif
+
+#if __INT_REG_BITS == 64
+
+# ifndef __ASSEMBLER__
+/** Unsigned type that can hold a register. */
+typedef unsigned long long __uint_reg_t;
+
+/** Signed type that can hold a register. */
+typedef long long __int_reg_t;
+# endif
+
+/** String prefix to use for printf(). */
+# define __INT_REG_FMT "ll"
+
+#elif __INT_REG_BITS == 32
+
+# ifndef __ASSEMBLER__
+/** Unsigned type that can hold a register. */
+typedef unsigned long __uint_reg_t;
+
+/** Signed type that can hold a register. */
+typedef long __int_reg_t;
+# endif
+
+/** String prefix to use for printf(). */
+# define __INT_REG_FMT "l"
+
+#else
+# error Unrecognized value of __INT_REG_BITS
+#endif
+
+#endif /* !__ARCH_INTREG_H__ */
diff --git a/arch/tile/include/uapi/asm/Kbuild b/arch/tile/include/uapi/asm/Kbuild
index 0c74c3c5ebfa..5711de0a1b5e 100644
--- a/arch/tile/include/uapi/asm/Kbuild
+++ b/arch/tile/include/uapi/asm/Kbuild
@@ -1,4 +1,23 @@
 # UAPI Header export list
 include include/uapi/asm-generic/Kbuild.asm
 
+generic-y += errno.h
+generic-y += fcntl.h
+generic-y += ioctl.h
+generic-y += ioctls.h
+generic-y += ipcbuf.h
+generic-y += msgbuf.h
+generic-y += param.h
+generic-y += poll.h
+generic-y += posix_types.h
+generic-y += resource.h
+generic-y += sembuf.h
+generic-y += shmbuf.h
+generic-y += shmparam.h
+generic-y += socket.h
+generic-y += sockios.h
+generic-y += statfs.h
+generic-y += termbits.h
+generic-y += termios.h
+generic-y += types.h
 generic-y += ucontext.h
diff --git a/arch/tile/mm/init.c b/arch/tile/mm/init.c
index 3a97e4d7205c..5f757e04bcd2 100644
--- a/arch/tile/mm/init.c
+++ b/arch/tile/mm/init.c
@@ -857,36 +857,6 @@ void __init mem_init(void)
 #endif
 }
 
-/*
- * this is for the non-NUMA, single node SMP system case.
- * Specifically, in the case of x86, we will always add
- * memory to the highmem for now.
- */
-#ifndef CONFIG_NEED_MULTIPLE_NODES
-int arch_add_memory(u64 start, u64 size, bool for_device)
-{
-	struct pglist_data *pgdata = &contig_page_data;
-	struct zone *zone = pgdata->node_zones + MAX_NR_ZONES-1;
-	unsigned long start_pfn = start >> PAGE_SHIFT;
-	unsigned long nr_pages = size >> PAGE_SHIFT;
-
-	return __add_pages(zone, start_pfn, nr_pages);
-}
-
-int remove_memory(u64 start, u64 size)
-{
-	return -EINVAL;
-}
-
-#ifdef CONFIG_MEMORY_HOTREMOVE
-int arch_remove_memory(u64 start, u64 size)
-{
-	/* TODO */
-	return -EBUSY;
-}
-#endif
-#endif
-
 struct kmem_cache *pgd_cache;
 
 void __init pgtable_cache_init(void)
diff --git a/arch/um/Makefile b/arch/um/Makefile
index 0ca46ededfc7..6ca4f66085c1 100644
--- a/arch/um/Makefile
+++ b/arch/um/Makefile
@@ -59,10 +59,14 @@ KBUILD_CPPFLAGS += -I$(srctree)/$(HOST_DIR)/um
 # Same things for in6addr_loopback and mktime - found in libc. For these two we
 # only get link-time error, luckily.
 #
+# -Dlongjmp=kernel_longjmp prevents anything from referencing the libpthread.a
+# embedded copy of longjmp, same thing for setjmp.
+#
 # These apply to USER_CFLAGS to.
 
 KBUILD_CFLAGS += $(CFLAGS) $(CFLAGS-y) -D__arch_um__ \
 	$(ARCH_INCLUDE) $(MODE_INCLUDE) -Dvmap=kernel_vmap	\
+	-Dlongjmp=kernel_longjmp -Dsetjmp=kernel_setjmp \
 	-Din6addr_loopback=kernel_in6addr_loopback \
 	-Din6addr_any=kernel_in6addr_any -Dstrrchr=kernel_strrchr
 
diff --git a/arch/um/drivers/stdio_console.c b/arch/um/drivers/stdio_console.c
index 7b361f36ca96..c90817b04da9 100644
--- a/arch/um/drivers/stdio_console.c
+++ b/arch/um/drivers/stdio_console.c
@@ -192,6 +192,9 @@ __uml_exitcall(console_exit);
 
 static int console_chan_setup(char *str)
 {
+	if (!strncmp(str, "sole=", 5))	/* console= option specifies tty */
+		return 0;
+
 	line_setup(vt_conf, MAX_TTYS, &def_conf, str, "console");
 	return 1;
 }
diff --git a/arch/um/include/asm/common.lds.S b/arch/um/include/asm/common.lds.S
index 133055311dce..9e6d5997cfc4 100644
--- a/arch/um/include/asm/common.lds.S
+++ b/arch/um/include/asm/common.lds.S
@@ -15,7 +15,7 @@
   PROVIDE (_unprotected_end = .);
 
   . = ALIGN(4096);
-  .note : { *(.note.*) }
+  NOTES
   EXCEPTION_TABLE(0)
 
   BUG_TABLE
diff --git a/arch/um/include/asm/io.h b/arch/um/include/asm/io.h
new file mode 100644
index 000000000000..8f35d574f35b
--- /dev/null
+++ b/arch/um/include/asm/io.h
@@ -0,0 +1,17 @@
+#ifndef _ASM_UM_IO_H
+#define _ASM_UM_IO_H
+
+#define ioremap ioremap
+static inline void __iomem *ioremap(phys_addr_t offset, size_t size)
+{
+	return (void __iomem *)(unsigned long)offset;
+}
+
+#define iounmap iounmap
+static inline void iounmap(void __iomem *addr)
+{
+}
+
+#include <asm-generic/io.h>
+
+#endif
diff --git a/arch/um/include/asm/tlb.h b/arch/um/include/asm/tlb.h
index 600a2e9bfee2..344d95619d03 100644
--- a/arch/um/include/asm/tlb.h
+++ b/arch/um/include/asm/tlb.h
@@ -45,7 +45,8 @@ static inline void init_tlb_gather(struct mmu_gather *tlb)
 }
 
 static inline void
-tlb_gather_mmu(struct mmu_gather *tlb, struct mm_struct *mm, unsigned long start, unsigned long end)
+arch_tlb_gather_mmu(struct mmu_gather *tlb, struct mm_struct *mm,
+		unsigned long start, unsigned long end)
 {
 	tlb->mm = mm;
 	tlb->start = start;
@@ -80,13 +81,19 @@ tlb_flush_mmu(struct mmu_gather *tlb)
 	tlb_flush_mmu_free(tlb);
 }
 
-/* tlb_finish_mmu
+/* arch_tlb_finish_mmu
  *	Called at the end of the shootdown operation to free up any resources
  *	that were required.
  */
 static inline void
-tlb_finish_mmu(struct mmu_gather *tlb, unsigned long start, unsigned long end)
+arch_tlb_finish_mmu(struct mmu_gather *tlb,
+		unsigned long start, unsigned long end, bool force)
 {
+	if (force) {
+		tlb->start = start;
+		tlb->end = end;
+		tlb->need_flush = 1;
+	}
 	tlb_flush_mmu(tlb);
 
 	/* keep the page table cache within bounds */
diff --git a/arch/um/include/shared/os.h b/arch/um/include/shared/os.h
index cd1fa97776c3..574e03fc7ba2 100644
--- a/arch/um/include/shared/os.h
+++ b/arch/um/include/shared/os.h
@@ -242,6 +242,10 @@ extern void setup_hostinfo(char *buf, int len);
 extern void os_dump_core(void) __attribute__ ((noreturn));
 extern void um_early_printk(const char *s, unsigned int n);
 extern void os_fix_helper_signals(void);
+extern void os_info(const char *fmt, ...)
+	__attribute__ ((format (printf, 1, 2)));
+extern void os_warn(const char *fmt, ...)
+	__attribute__ ((format (printf, 1, 2)));
 
 /* time.c */
 extern void os_idle_sleep(unsigned long long nsecs);
diff --git a/arch/um/include/shared/skas/stub-data.h b/arch/um/include/shared/skas/stub-data.h
index a9deece956bf..13f404e1262b 100644
--- a/arch/um/include/shared/skas/stub-data.h
+++ b/arch/um/include/shared/skas/stub-data.h
@@ -8,8 +8,6 @@
 #ifndef __STUB_DATA_H
 #define __STUB_DATA_H
 
-#include <time.h>
-
 struct stub_data {
 	unsigned long offset;
 	int fd;
diff --git a/arch/um/kernel/physmem.c b/arch/um/kernel/physmem.c
index 4c9861b421fd..f02596e9931d 100644
--- a/arch/um/kernel/physmem.c
+++ b/arch/um/kernel/physmem.c
@@ -89,8 +89,8 @@ void __init setup_physmem(unsigned long start, unsigned long reserve_end,
 	offset = uml_reserved - uml_physmem;
 	map_size = len - offset;
 	if(map_size <= 0) {
-		printf("Too few physical memory! Needed=%d, given=%d\n",
-		       offset, len);
+		os_warn("Too few physical memory! Needed=%lu, given=%lu\n",
+			offset, len);
 		exit(1);
 	}
 
@@ -99,9 +99,9 @@ void __init setup_physmem(unsigned long start, unsigned long reserve_end,
 	err = os_map_memory((void *) uml_reserved, physmem_fd, offset,
 			    map_size, 1, 1, 1);
 	if (err < 0) {
-		printf("setup_physmem - mapping %ld bytes of memory at 0x%p "
-		       "failed - errno = %d\n", map_size,
-		       (void *) uml_reserved, err);
+		os_warn("setup_physmem - mapping %ld bytes of memory at 0x%p "
+			"failed - errno = %d\n", map_size,
+			(void *) uml_reserved, err);
 		exit(1);
 	}
 
diff --git a/arch/um/kernel/trap.c b/arch/um/kernel/trap.c
index 59158871b9fc..4e6fcb32620f 100644
--- a/arch/um/kernel/trap.c
+++ b/arch/um/kernel/trap.c
@@ -183,6 +183,16 @@ void fatal_sigsegv(void)
 	os_dump_core();
 }
 
+/**
+ * segv_handler() - the SIGSEGV handler
+ * @sig:	the signal number
+ * @unused_si:	the signal info struct; unused in this handler
+ * @regs:	the ptrace register information
+ *
+ * The handler first extracts the faultinfo from the UML ptrace regs struct.
+ * If the userfault did not happen in an UML userspace process, bad_segv is called.
+ * Otherwise the signal did happen in a cloned userspace process, handle it.
+ */
 void segv_handler(int sig, struct siginfo *unused_si, struct uml_pt_regs *regs)
 {
 	struct faultinfo * fi = UPT_FAULTINFO(regs);
diff --git a/arch/um/kernel/um_arch.c b/arch/um/kernel/um_arch.c
index 7b5640117325..f433690b9b37 100644
--- a/arch/um/kernel/um_arch.c
+++ b/arch/um/kernel/um_arch.c
@@ -34,7 +34,7 @@ static char __initdata command_line[COMMAND_LINE_SIZE] = { 0 };
 static void __init add_arg(char *arg)
 {
 	if (strlen(command_line) + strlen(arg) + 1 > COMMAND_LINE_SIZE) {
-		printf("add_arg: Too many command line arguments!\n");
+		os_warn("add_arg: Too many command line arguments!\n");
 		exit(1);
 	}
 	if (strlen(command_line) > 0)
@@ -120,6 +120,7 @@ static const char *usage_string =
 
 static int __init uml_version_setup(char *line, int *add)
 {
+	/* Explicitly use printf() to show version in stdout */
 	printf("%s\n", init_utsname()->release);
 	exit(0);
 
@@ -148,8 +149,8 @@ __uml_setup("root=", uml_root_setup,
 
 static int __init no_skas_debug_setup(char *line, int *add)
 {
-	printf("'debug' is not necessary to gdb UML in skas mode - run \n");
-	printf("'gdb linux'\n");
+	os_warn("'debug' is not necessary to gdb UML in skas mode - run\n");
+	os_warn("'gdb linux'\n");
 
 	return 0;
 }
@@ -165,6 +166,7 @@ static int __init Usage(char *line, int *add)
 
 	printf(usage_string, init_utsname()->release);
 	p = &__uml_help_start;
+	/* Explicitly use printf() to show help in stdout */
 	while (p < &__uml_help_end) {
 		printf("%s", *p);
 		p++;
@@ -283,8 +285,8 @@ int __init linux_main(int argc, char **argv)
 
 	diff = UML_ROUND_UP(brk_start) - UML_ROUND_UP(&_end);
 	if (diff > 1024 * 1024) {
-		printf("Adding %ld bytes to physical memory to account for "
-		       "exec-shield gap\n", diff);
+		os_info("Adding %ld bytes to physical memory to account for "
+			"exec-shield gap\n", diff);
 		physmem_size += UML_ROUND_UP(brk_start) - UML_ROUND_UP(&_end);
 	}
 
@@ -324,8 +326,8 @@ int __init linux_main(int argc, char **argv)
 	end_vm = start_vm + virtmem_size;
 
 	if (virtmem_size < physmem_size)
-		printf("Kernel virtual memory size shrunk to %lu bytes\n",
-		       virtmem_size);
+		os_info("Kernel virtual memory size shrunk to %lu bytes\n",
+			virtmem_size);
 
 	os_flush_stdout();
 
diff --git a/arch/um/kernel/umid.c b/arch/um/kernel/umid.c
index f6cc3bd61781..10bf4aca529f 100644
--- a/arch/um/kernel/umid.c
+++ b/arch/um/kernel/umid.c
@@ -16,14 +16,14 @@ static int __init set_umid_arg(char *name, int *add)
 	int err;
 
 	if (umid_inited) {
-		printf("umid already set\n");
+		os_warn("umid already set\n");
 		return 0;
 	}
 
 	*add = 0;
 	err = set_umid(name);
 	if (err == -EEXIST)
-		printf("umid '%s' already in use\n", name);
+		os_warn("umid '%s' already in use\n", name);
 	else if (!err)
 		umid_inited = 1;
 
diff --git a/arch/um/os-Linux/execvp.c b/arch/um/os-Linux/execvp.c
index 8fb25ca07c46..84a0777c2a45 100644
--- a/arch/um/os-Linux/execvp.c
+++ b/arch/um/os-Linux/execvp.c
@@ -136,7 +136,7 @@ int main(int argc, char**argv)
 	int ret;
 	argc--;
 	if (!argc) {
-		fprintf(stderr, "Not enough arguments\n");
+		os_warn("Not enough arguments\n");
 		return 1;
 	}
 	argv++;
diff --git a/arch/um/os-Linux/main.c b/arch/um/os-Linux/main.c
index 9d499de87e63..5f970ece5ac3 100644
--- a/arch/um/os-Linux/main.c
+++ b/arch/um/os-Linux/main.c
@@ -74,8 +74,8 @@ static void install_fatal_handler(int sig)
 	action.sa_restorer = NULL;
 	action.sa_handler = last_ditch_exit;
 	if (sigaction(sig, &action, NULL) < 0) {
-		printf("failed to install handler for signal %d - errno = %d\n",
-		       sig, errno);
+		os_warn("failed to install handler for signal %d "
+			"- errno = %d\n", sig, errno);
 		exit(1);
 	}
 }
@@ -175,7 +175,7 @@ int __init main(int argc, char **argv, char **envp)
 	/* disable SIGIO for the fds and set SIGIO to be ignored */
 	err = deactivate_all_fds();
 	if (err)
-		printf("deactivate_all_fds failed, errno = %d\n", -err);
+		os_warn("deactivate_all_fds failed, errno = %d\n", -err);
 
 	/*
 	 * Let any pending signals fire now.  This ensures
@@ -184,14 +184,13 @@ int __init main(int argc, char **argv, char **envp)
 	 */
 	unblock_signals();
 
+	os_info("\n");
 	/* Reboot */
 	if (ret) {
-		printf("\n");
 		execvp(new_argv[0], new_argv);
 		perror("Failed to exec kernel");
 		ret = 1;
 	}
-	printf("\n");
 	return uml_exitcode;
 }
 
diff --git a/arch/um/os-Linux/mem.c b/arch/um/os-Linux/mem.c
index 8b1767668515..e162a95ad7dd 100644
--- a/arch/um/os-Linux/mem.c
+++ b/arch/um/os-Linux/mem.c
@@ -25,13 +25,13 @@ static int __init check_tmpfs(const char *dir)
 {
 	struct statfs st;
 
-	printf("Checking if %s is on tmpfs...", dir);
+	os_info("Checking if %s is on tmpfs...", dir);
 	if (statfs(dir, &st) < 0) {
-		printf("%s\n", strerror(errno));
+		os_info("%s\n", strerror(errno));
 	} else if (st.f_type != TMPFS_MAGIC) {
-		printf("no\n");
+		os_info("no\n");
 	} else {
-		printf("OK\n");
+		os_info("OK\n");
 		return 0;
 	}
 	return -1;
@@ -61,18 +61,18 @@ static char * __init choose_tempdir(void)
 	int i;
 	const char *dir;
 
-	printf("Checking environment variables for a tempdir...");
+	os_info("Checking environment variables for a tempdir...");
 	for (i = 0; vars[i]; i++) {
 		dir = getenv(vars[i]);
 		if ((dir != NULL) && (*dir != '\0')) {
-			printf("%s\n", dir);
+			os_info("%s\n", dir);
 			if (check_tmpfs(dir) >= 0)
 				goto done;
 			else
 				goto warn;
 		}
 	}
-	printf("none found\n");
+	os_info("none found\n");
 
 	for (i = 0; tmpfs_dirs[i]; i++) {
 		dir = tmpfs_dirs[i];
@@ -82,7 +82,7 @@ static char * __init choose_tempdir(void)
 
 	dir = fallback_dir;
 warn:
-	printf("Warning: tempdir %s is not on tmpfs\n", dir);
+	os_warn("Warning: tempdir %s is not on tmpfs\n", dir);
 done:
 	/* Make a copy since getenv results may not remain valid forever. */
 	return strdup(dir);
@@ -100,7 +100,7 @@ static int __init make_tempfile(const char *template)
 	if (tempdir == NULL) {
 		tempdir = choose_tempdir();
 		if (tempdir == NULL) {
-			fprintf(stderr, "Failed to choose tempdir: %s\n",
+			os_warn("Failed to choose tempdir: %s\n",
 				strerror(errno));
 			return -1;
 		}
@@ -125,7 +125,7 @@ static int __init make_tempfile(const char *template)
 	strcat(tempname, template);
 	fd = mkstemp(tempname);
 	if (fd < 0) {
-		fprintf(stderr, "open - cannot create %s: %s\n", tempname,
+		os_warn("open - cannot create %s: %s\n", tempname,
 			strerror(errno));
 		goto out;
 	}
@@ -194,16 +194,16 @@ void __init check_tmpexec(void)
 
 	addr = mmap(NULL, UM_KERN_PAGE_SIZE,
 		    PROT_READ | PROT_WRITE | PROT_EXEC, MAP_PRIVATE, fd, 0);
-	printf("Checking PROT_EXEC mmap in %s...", tempdir);
+	os_info("Checking PROT_EXEC mmap in %s...", tempdir);
 	if (addr == MAP_FAILED) {
 		err = errno;
-		printf("%s\n", strerror(err));
+		os_warn("%s\n", strerror(err));
 		close(fd);
 		if (err == EPERM)
-			printf("%s must be not mounted noexec\n", tempdir);
+			os_warn("%s must be not mounted noexec\n", tempdir);
 		exit(1);
 	}
-	printf("OK\n");
+	os_info("OK\n");
 	munmap(addr, UM_KERN_PAGE_SIZE);
 
 	close(fd);
diff --git a/arch/um/os-Linux/skas/process.c b/arch/um/os-Linux/skas/process.c
index 03b3c4cc7735..819d68656673 100644
--- a/arch/um/os-Linux/skas/process.c
+++ b/arch/um/os-Linux/skas/process.c
@@ -108,7 +108,7 @@ static void get_skas_faultinfo(int pid, struct faultinfo *fi)
 	wait_stub_done(pid);
 
 	/*
-	 * faultinfo is prepared by the stub-segv-handler at start of
+	 * faultinfo is prepared by the stub_segv_handler at start of
 	 * the stub stack page. We just have to copy it.
 	 */
 	memcpy(fi, (void *)current_stub_stack(), sizeof(*fi));
@@ -175,6 +175,21 @@ static void handle_trap(int pid, struct uml_pt_regs *regs,
 
 extern char __syscall_stub_start[];
 
+/**
+ * userspace_tramp() - userspace trampoline
+ * @stack:	pointer to the new userspace stack page, can be NULL, if? FIXME:
+ *
+ * The userspace trampoline is used to setup a new userspace process in start_userspace() after it was clone()'ed.
+ * This function will run on a temporary stack page.
+ * It ptrace()'es itself, then
+ * Two pages are mapped into the userspace address space:
+ * - STUB_CODE (with EXEC), which contains the skas stub code
+ * - STUB_DATA (with R/W), which contains a data page that is used to transfer certain data between the UML userspace process and the UML kernel.
+ * Also for the userspace process a SIGSEGV handler is installed to catch pagefaults in the userspace process.
+ * And last the process stops itself to give control to the UML kernel for this userspace process.
+ *
+ * Return: Always zero, otherwise the current userspace process is ended with non null exit() call
+ */
 static int userspace_tramp(void *stack)
 {
 	void *addr;
@@ -236,12 +251,24 @@ static int userspace_tramp(void *stack)
 
 int userspace_pid[NR_CPUS];
 
+/**
+ * start_userspace() - prepare a new userspace process
+ * @stub_stack:	pointer to the stub stack. Can be NULL, if? FIXME:
+ *
+ * Setups a new temporary stack page that is used while userspace_tramp() runs
+ * Clones the kernel process into a new userspace process, with FDs only.
+ *
+ * Return: When positive: the process id of the new userspace process,
+ *         when negative: an error number.
+ * FIXME: can PIDs become negative?!
+ */
 int start_userspace(unsigned long stub_stack)
 {
 	void *stack;
 	unsigned long sp;
 	int pid, status, n, flags, err;
 
+	/* setup a temporary stack page */
 	stack = mmap(NULL, UM_KERN_PAGE_SIZE,
 		     PROT_READ | PROT_WRITE | PROT_EXEC,
 		     MAP_PRIVATE | MAP_ANONYMOUS, -1, 0);
@@ -252,10 +279,12 @@ int start_userspace(unsigned long stub_stack)
 		return err;
 	}
 
+	/* set stack pointer to the end of the stack page, so it can grow downwards */
 	sp = (unsigned long) stack + UM_KERN_PAGE_SIZE - sizeof(void *);
 
 	flags = CLONE_FILES | SIGCHLD;
 
+	/* clone into new userspace process */
 	pid = clone(userspace_tramp, (void *) sp, flags, (void *) stub_stack);
 	if (pid < 0) {
 		err = -errno;
@@ -323,11 +352,17 @@ void userspace(struct uml_pt_regs *regs)
 		 * fail.  In this case, there is nothing to do but
 		 * just kill the process.
 		 */
-		if (ptrace(PTRACE_SETREGS, pid, 0, regs->gp))
+		if (ptrace(PTRACE_SETREGS, pid, 0, regs->gp)) {
+			printk(UM_KERN_ERR "userspace - ptrace set regs "
+			       "failed, errno = %d\n", errno);
 			fatal_sigsegv();
+		}
 
-		if (put_fp_registers(pid, regs->fp))
+		if (put_fp_registers(pid, regs->fp)) {
+			printk(UM_KERN_ERR "userspace - ptrace set fp regs "
+			       "failed, errno = %d\n", errno);
 			fatal_sigsegv();
+		}
 
 		/* Now we set local_using_sysemu to be used for one loop */
 		local_using_sysemu = get_using_sysemu();
diff --git a/arch/um/os-Linux/start_up.c b/arch/um/os-Linux/start_up.c
index 22a358ef1b0c..b1b6b75c5b17 100644
--- a/arch/um/os-Linux/start_up.c
+++ b/arch/um/os-Linux/start_up.c
@@ -166,7 +166,7 @@ static void __init check_sysemu(void)
 	unsigned long regs[MAX_REG_NR];
 	int pid, n, status, count=0;
 
-	non_fatal("Checking syscall emulation patch for ptrace...");
+	os_info("Checking syscall emulation patch for ptrace...");
 	sysemu_supported = 0;
 	pid = start_ptraced_child();
 
@@ -199,10 +199,10 @@ static void __init check_sysemu(void)
 		goto fail_stopped;
 
 	sysemu_supported = 1;
-	non_fatal("OK\n");
+	os_info("OK\n");
 	set_using_sysemu(!force_sysemu_disabled);
 
-	non_fatal("Checking advanced syscall emulation patch for ptrace...");
+	os_info("Checking advanced syscall emulation patch for ptrace...");
 	pid = start_ptraced_child();
 
 	if ((ptrace(PTRACE_OLDSETOPTIONS, pid, 0,
@@ -244,7 +244,7 @@ static void __init check_sysemu(void)
 		goto fail_stopped;
 
 	sysemu_supported = 2;
-	non_fatal("OK\n");
+	os_info("OK\n");
 
 	if (!force_sysemu_disabled)
 		set_using_sysemu(sysemu_supported);
@@ -260,7 +260,7 @@ static void __init check_ptrace(void)
 {
 	int pid, syscall, n, status;
 
-	non_fatal("Checking that ptrace can change system call numbers...");
+	os_info("Checking that ptrace can change system call numbers...");
 	pid = start_ptraced_child();
 
 	if ((ptrace(PTRACE_OLDSETOPTIONS, pid, 0,
@@ -292,7 +292,7 @@ static void __init check_ptrace(void)
 		}
 	}
 	stop_ptraced_child(pid, 0, 1);
-	non_fatal("OK\n");
+	os_info("OK\n");
 	check_sysemu();
 }
 
@@ -308,15 +308,17 @@ static void __init check_coredump_limit(void)
 		return;
 	}
 
-	printf("Core dump limits :\n\tsoft - ");
+	os_info("Core dump limits :\n\tsoft - ");
 	if (lim.rlim_cur == RLIM_INFINITY)
-		printf("NONE\n");
-	else printf("%lu\n", lim.rlim_cur);
+		os_info("NONE\n");
+	else
+		os_info("%llu\n", (unsigned long long)lim.rlim_cur);
 
-	printf("\thard - ");
+	os_info("\thard - ");
 	if (lim.rlim_max == RLIM_INFINITY)
-		printf("NONE\n");
-	else printf("%lu\n", lim.rlim_max);
+		os_info("NONE\n");
+	else
+		os_info("%llu\n", (unsigned long long)lim.rlim_max);
 }
 
 void __init os_early_checks(void)
@@ -349,7 +351,7 @@ int __init parse_iomem(char *str, int *add)
 	driver = str;
 	file = strchr(str,',');
 	if (file == NULL) {
-		fprintf(stderr, "parse_iomem : failed to parse iomem\n");
+		os_warn("parse_iomem : failed to parse iomem\n");
 		goto out;
 	}
 	*file = '\0';
diff --git a/arch/um/os-Linux/umid.c b/arch/um/os-Linux/umid.c
index c1dc89261f67..998fbb445458 100644
--- a/arch/um/os-Linux/umid.c
+++ b/arch/um/os-Linux/umid.c
@@ -35,8 +35,9 @@ static int __init make_uml_dir(void)
 
 		err = -ENOENT;
 		if (home == NULL) {
-			printk(UM_KERN_ERR "make_uml_dir : no value in "
-			       "environment for $HOME\n");
+			printk(UM_KERN_ERR
+				"%s: no value in environment for $HOME\n",
+				__func__);
 			goto err;
 		}
 		strlcpy(dir, home, sizeof(dir));
@@ -50,13 +51,15 @@ static int __init make_uml_dir(void)
 	err = -ENOMEM;
 	uml_dir = malloc(strlen(dir) + 1);
 	if (uml_dir == NULL) {
-		printf("make_uml_dir : malloc failed, errno = %d\n", errno);
+		printk(UM_KERN_ERR "%s : malloc failed, errno = %d\n",
+			__func__, errno);
 		goto err;
 	}
 	strcpy(uml_dir, dir);
 
 	if ((mkdir(uml_dir, 0777) < 0) && (errno != EEXIST)) {
-	        printf("Failed to mkdir '%s': %s\n", uml_dir, strerror(errno));
+		printk(UM_KERN_ERR "Failed to mkdir '%s': %s\n",
+			uml_dir, strerror(errno));
 		err = -errno;
 		goto err_free;
 	}
@@ -351,7 +354,7 @@ char *get_umid(void)
 static int __init set_uml_dir(char *name, int *add)
 {
 	if (*name == '\0') {
-		printf("uml_dir can't be an empty string\n");
+		os_warn("uml_dir can't be an empty string\n");
 		return 0;
 	}
 
@@ -362,7 +365,7 @@ static int __init set_uml_dir(char *name, int *add)
 
 	uml_dir = malloc(strlen(name) + 2);
 	if (uml_dir == NULL) {
-		printf("Failed to malloc uml_dir - error = %d\n", errno);
+		os_warn("Failed to malloc uml_dir - error = %d\n", errno);
 
 		/*
 		 * Return 0 here because do_initcalls doesn't look at
@@ -387,8 +390,8 @@ static void remove_umid_dir(void)
 	sprintf(dir, "%s%s", uml_dir, umid);
 	err = remove_files_and_dir(dir);
 	if (err)
-		printf("remove_umid_dir - remove_files_and_dir failed with "
-		       "err = %d\n", err);
+		os_warn("%s - remove_files_and_dir failed with err = %d\n",
+			__func__, err);
 }
 
 __uml_exitcall(remove_umid_dir);
diff --git a/arch/um/os-Linux/util.c b/arch/um/os-Linux/util.c
index faee55ef6d2f..8cc8b2617a67 100644
--- a/arch/um/os-Linux/util.c
+++ b/arch/um/os-Linux/util.c
@@ -13,6 +13,7 @@
 #include <wait.h>
 #include <sys/mman.h>
 #include <sys/utsname.h>
+#include <init.h>
 #include <os.h>
 
 void stack_protections(unsigned long address)
@@ -152,3 +153,36 @@ void um_early_printk(const char *s, unsigned int n)
 {
 	printf("%.*s", n, s);
 }
+
+static int quiet_info;
+
+static int __init quiet_cmd_param(char *str, int *add)
+{
+	quiet_info = 1;
+	return 0;
+}
+
+__uml_setup("quiet", quiet_cmd_param,
+"quiet\n"
+"    Turns off information messages during boot.\n\n");
+
+void os_info(const char *fmt, ...)
+{
+	va_list list;
+
+	if (quiet_info)
+		return;
+
+	va_start(list, fmt);
+	vfprintf(stderr, fmt, list);
+	va_end(list);
+}
+
+void os_warn(const char *fmt, ...)
+{
+	va_list list;
+
+	va_start(list, fmt);
+	vfprintf(stderr, fmt, list);
+	va_end(list);
+}
diff --git a/arch/unicore32/include/asm/Kbuild b/arch/unicore32/include/asm/Kbuild
index 7a53a55341de..fda7e2153086 100644
--- a/arch/unicore32/include/asm/Kbuild
+++ b/arch/unicore32/include/asm/Kbuild
@@ -1,66 +1,38 @@
-
 generic-y += atomic.h
-generic-y += auxvec.h
-generic-y += bitsperlong.h
 generic-y += bugs.h
 generic-y += clkdev.h
 generic-y += current.h
 generic-y += device.h
 generic-y += div64.h
 generic-y += emergency-restart.h
-generic-y += errno.h
 generic-y += exec.h
 generic-y += extable.h
 generic-y += fb.h
-generic-y += fcntl.h
 generic-y += ftrace.h
 generic-y += futex.h
 generic-y += hardirq.h
 generic-y += hw_irq.h
-generic-y += ioctl.h
-generic-y += ioctls.h
-generic-y += ipcbuf.h
 generic-y += irq_regs.h
 generic-y += irq_work.h
 generic-y += kdebug.h
 generic-y += kmap_types.h
+generic-y += kprobes.h
 generic-y += local.h
 generic-y += mcs_spinlock.h
 generic-y += mm-arch-hooks.h
-generic-y += mman.h
 generic-y += module.h
-generic-y += msgbuf.h
-generic-y += param.h
 generic-y += parport.h
 generic-y += percpu.h
-generic-y += poll.h
-generic-y += posix_types.h
 generic-y += preempt.h
-generic-y += resource.h
 generic-y += sections.h
 generic-y += segment.h
-generic-y += sembuf.h
 generic-y += serial.h
-generic-y += setup.h
-generic-y += shmbuf.h
-generic-y += shmparam.h
-generic-y += signal.h
 generic-y += sizes.h
-generic-y += socket.h
-generic-y += sockios.h
-generic-y += stat.h
-generic-y += statfs.h
-generic-y += swab.h
 generic-y += syscalls.h
-generic-y += termbits.h
-generic-y += termios.h
 generic-y += topology.h
 generic-y += trace_clock.h
-generic-y += types.h
-generic-y += ucontext.h
 generic-y += unaligned.h
 generic-y += user.h
 generic-y += vga.h
 generic-y += word-at-a-time.h
 generic-y += xor.h
-generic-y += kprobes.h
diff --git a/arch/unicore32/include/uapi/asm/Kbuild b/arch/unicore32/include/uapi/asm/Kbuild
index 1c44d3b3eba0..759a71411169 100644
--- a/arch/unicore32/include/uapi/asm/Kbuild
+++ b/arch/unicore32/include/uapi/asm/Kbuild
@@ -1,5 +1,32 @@
 # UAPI Header export list
 include include/uapi/asm-generic/Kbuild.asm
 
+generic-y += auxvec.h
+generic-y += bitsperlong.h
+generic-y += errno.h
+generic-y += fcntl.h
+generic-y += ioctl.h
+generic-y += ioctls.h
+generic-y += ipcbuf.h
 generic-y += kvm_para.h
+generic-y += mman.h
+generic-y += msgbuf.h
+generic-y += param.h
+generic-y += poll.h
+generic-y += posix_types.h
+generic-y += resource.h
+generic-y += sembuf.h
+generic-y += setup.h
+generic-y += shmbuf.h
+generic-y += shmparam.h
 generic-y += siginfo.h
+generic-y += signal.h
+generic-y += socket.h
+generic-y += sockios.h
+generic-y += stat.h
+generic-y += statfs.h
+generic-y += swab.h
+generic-y += termbits.h
+generic-y += termios.h
+generic-y += types.h
+generic-y += ucontext.h
diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig
index 94a18681353d..323cb065be5e 100644
--- a/arch/x86/Kconfig
+++ b/arch/x86/Kconfig
@@ -50,6 +50,7 @@ config X86
 	select ARCH_HAS_DEVMEM_IS_ALLOWED
 	select ARCH_HAS_ELF_RANDOMIZE
 	select ARCH_HAS_FAST_MULTIPLIER
+	select ARCH_HAS_FORTIFY_SOURCE
 	select ARCH_HAS_GCOV_PROFILE_ALL
 	select ARCH_HAS_KCOV			if X86_64
 	select ARCH_HAS_MMIO_FLUSH
@@ -99,6 +100,7 @@ config X86
 	select GENERIC_STRNCPY_FROM_USER
 	select GENERIC_STRNLEN_USER
 	select GENERIC_TIME_VSYSCALL
+	select HARDLOCKUP_CHECK_TIMESTAMP	if X86_64
 	select HAVE_ACPI_APEI			if ACPI
 	select HAVE_ACPI_APEI_NMI		if ACPI
 	select HAVE_ALIGNED_STRUCT_PAGE		if SLUB
@@ -162,6 +164,7 @@ config X86
 	select HAVE_PCSPKR_PLATFORM
 	select HAVE_PERF_EVENTS
 	select HAVE_PERF_EVENTS_NMI
+	select HAVE_HARDLOCKUP_DETECTOR_PERF	if PERF_EVENTS && HAVE_PERF_EVENTS_NMI
 	select HAVE_PERF_REGS
 	select HAVE_PERF_USER_STACK_DUMP
 	select HAVE_REGS_AND_STACK_ACCESS_API
diff --git a/arch/x86/Kconfig.debug b/arch/x86/Kconfig.debug
index fcb7604172ce..cd20ca0b4043 100644
--- a/arch/x86/Kconfig.debug
+++ b/arch/x86/Kconfig.debug
@@ -348,6 +348,7 @@ config X86_DEBUG_FPU
 
 config PUNIT_ATOM_DEBUG
 	tristate "ATOM Punit debug driver"
+	depends on PCI
 	select DEBUG_FS
 	select IOSF_MBI
 	---help---
diff --git a/arch/x86/boot/Makefile b/arch/x86/boot/Makefile
index 0d810fb15eac..d88a2fddba8c 100644
--- a/arch/x86/boot/Makefile
+++ b/arch/x86/boot/Makefile
@@ -73,12 +73,13 @@ UBSAN_SANITIZE := n
 $(obj)/bzImage: asflags-y  := $(SVGA_MODE)
 
 quiet_cmd_image = BUILD   $@
+silent_redirect_image = >/dev/null
 cmd_image = $(obj)/tools/build $(obj)/setup.bin $(obj)/vmlinux.bin \
-			       $(obj)/zoffset.h $@
+			       $(obj)/zoffset.h $@ $($(quiet)redirect_image)
 
 $(obj)/bzImage: $(obj)/setup.bin $(obj)/vmlinux.bin $(obj)/tools/build FORCE
 	$(call if_changed,image)
-	@echo 'Kernel: $@ is ready' ' (#'`cat .version`')'
+	@$(kecho) 'Kernel: $@ is ready' ' (#'`cat .version`')'
 
 OBJCOPYFLAGS_vmlinux.bin := -O binary -R .note -R .comment -S
 $(obj)/vmlinux.bin: $(obj)/compressed/vmlinux FORCE
diff --git a/arch/x86/boot/compressed/Makefile b/arch/x86/boot/compressed/Makefile
index 2c860ad4fe06..8a958274b54c 100644
--- a/arch/x86/boot/compressed/Makefile
+++ b/arch/x86/boot/compressed/Makefile
@@ -34,6 +34,7 @@ KBUILD_CFLAGS += $(cflags-y)
 KBUILD_CFLAGS += -mno-mmx -mno-sse
 KBUILD_CFLAGS += $(call cc-option,-ffreestanding)
 KBUILD_CFLAGS += $(call cc-option,-fno-stack-protector)
+KBUILD_CFLAGS += $(call cc-disable-warning, address-of-packed-member)
 
 KBUILD_AFLAGS  := $(KBUILD_CFLAGS) -D__ASSEMBLY__
 GCOV_PROFILE := n
diff --git a/arch/x86/boot/compressed/misc.c b/arch/x86/boot/compressed/misc.c
index 00241c815524..a0838ab929f2 100644
--- a/arch/x86/boot/compressed/misc.c
+++ b/arch/x86/boot/compressed/misc.c
@@ -411,3 +411,8 @@ asmlinkage __visible void *extract_kernel(void *rmode, memptr heap,
 	debug_putstr("done.\nBooting the kernel.\n");
 	return output;
 }
+
+void fortify_panic(const char *name)
+{
+	error("detected buffer overflow");
+}
diff --git a/arch/x86/boot/string.c b/arch/x86/boot/string.c
index 630e3664906b..16f49123d747 100644
--- a/arch/x86/boot/string.c
+++ b/arch/x86/boot/string.c
@@ -16,6 +16,15 @@
 #include "ctype.h"
 #include "string.h"
 
+/*
+ * Undef these macros so that the functions that we provide
+ * here will have the correct names regardless of how string.h
+ * may have chosen to #define them.
+ */
+#undef memcpy
+#undef memset
+#undef memcmp
+
 int memcmp(const void *s1, const void *s2, size_t len)
 {
 	bool diff;
diff --git a/arch/x86/configs/i386_defconfig b/arch/x86/configs/i386_defconfig
index 6cf79e1a6830..0eb9f92f3717 100644
--- a/arch/x86/configs/i386_defconfig
+++ b/arch/x86/configs/i386_defconfig
@@ -1,5 +1,4 @@
 # CONFIG_64BIT is not set
-CONFIG_EXPERIMENTAL=y
 # CONFIG_LOCALVERSION_AUTO is not set
 CONFIG_SYSVIPC=y
 CONFIG_POSIX_MQUEUE=y
@@ -125,7 +124,6 @@ CONFIG_NF_CONNTRACK_IPV4=y
 CONFIG_IP_NF_IPTABLES=y
 CONFIG_IP_NF_FILTER=y
 CONFIG_IP_NF_TARGET_REJECT=y
-CONFIG_IP_NF_TARGET_ULOG=y
 CONFIG_NF_NAT=y
 CONFIG_IP_NF_TARGET_MASQUERADE=y
 CONFIG_IP_NF_MANGLE=y
@@ -255,7 +253,6 @@ CONFIG_USB_OHCI_HCD=y
 CONFIG_USB_UHCI_HCD=y
 CONFIG_USB_PRINTER=y
 CONFIG_USB_STORAGE=y
-CONFIG_USB_LIBUSUAL=y
 CONFIG_EDAC=y
 CONFIG_RTC_CLASS=y
 # CONFIG_RTC_HCTOSYS is not set
diff --git a/arch/x86/configs/x86_64_defconfig b/arch/x86/configs/x86_64_defconfig
index de45f57b410d..4a4b16e56d35 100644
--- a/arch/x86/configs/x86_64_defconfig
+++ b/arch/x86/configs/x86_64_defconfig
@@ -1,4 +1,3 @@
-CONFIG_EXPERIMENTAL=y
 # CONFIG_LOCALVERSION_AUTO is not set
 CONFIG_SYSVIPC=y
 CONFIG_POSIX_MQUEUE=y
@@ -124,7 +123,6 @@ CONFIG_NF_CONNTRACK_IPV4=y
 CONFIG_IP_NF_IPTABLES=y
 CONFIG_IP_NF_FILTER=y
 CONFIG_IP_NF_TARGET_REJECT=y
-CONFIG_IP_NF_TARGET_ULOG=y
 CONFIG_NF_NAT=y
 CONFIG_IP_NF_TARGET_MASQUERADE=y
 CONFIG_IP_NF_MANGLE=y
@@ -251,7 +249,6 @@ CONFIG_USB_OHCI_HCD=y
 CONFIG_USB_UHCI_HCD=y
 CONFIG_USB_PRINTER=y
 CONFIG_USB_STORAGE=y
-CONFIG_USB_LIBUSUAL=y
 CONFIG_EDAC=y
 CONFIG_RTC_CLASS=y
 # CONFIG_RTC_HCTOSYS is not set
diff --git a/arch/x86/crypto/sha1_avx2_x86_64_asm.S b/arch/x86/crypto/sha1_avx2_x86_64_asm.S
index 1cd792db15ef..1eab79c9ac48 100644
--- a/arch/x86/crypto/sha1_avx2_x86_64_asm.S
+++ b/arch/x86/crypto/sha1_avx2_x86_64_asm.S
@@ -117,11 +117,10 @@
 	.set T1, REG_T1
 .endm
 
-#define K_BASE		%r8
 #define HASH_PTR	%r9
+#define BLOCKS_CTR	%r8
 #define BUFFER_PTR	%r10
 #define BUFFER_PTR2	%r13
-#define BUFFER_END	%r11
 
 #define PRECALC_BUF	%r14
 #define WK_BUF		%r15
@@ -205,14 +204,14 @@
 		 * blended AVX2 and ALU instruction scheduling
 		 * 1 vector iteration per 8 rounds
 		 */
-		vmovdqu ((i * 2) + PRECALC_OFFSET)(BUFFER_PTR), W_TMP
+		vmovdqu (i * 2)(BUFFER_PTR), W_TMP
 	.elseif ((i & 7) == 1)
-		vinsertf128 $1, (((i-1) * 2)+PRECALC_OFFSET)(BUFFER_PTR2),\
+		vinsertf128 $1, ((i-1) * 2)(BUFFER_PTR2),\
 			 WY_TMP, WY_TMP
 	.elseif ((i & 7) == 2)
 		vpshufb YMM_SHUFB_BSWAP, WY_TMP, WY
 	.elseif ((i & 7) == 4)
-		vpaddd  K_XMM(K_BASE), WY, WY_TMP
+		vpaddd  K_XMM + K_XMM_AR(%rip), WY, WY_TMP
 	.elseif ((i & 7) == 7)
 		vmovdqu  WY_TMP, PRECALC_WK(i&~7)
 
@@ -255,7 +254,7 @@
 		vpxor	WY, WY_TMP, WY_TMP
 	.elseif ((i & 7) == 7)
 		vpxor	WY_TMP2, WY_TMP, WY
-		vpaddd	K_XMM(K_BASE), WY, WY_TMP
+		vpaddd  K_XMM + K_XMM_AR(%rip), WY, WY_TMP
 		vmovdqu	WY_TMP, PRECALC_WK(i&~7)
 
 		PRECALC_ROTATE_WY
@@ -291,7 +290,7 @@
 		vpsrld	$30, WY, WY
 		vpor	WY, WY_TMP, WY
 	.elseif ((i & 7) == 7)
-		vpaddd	K_XMM(K_BASE), WY, WY_TMP
+		vpaddd  K_XMM + K_XMM_AR(%rip), WY, WY_TMP
 		vmovdqu	WY_TMP, PRECALC_WK(i&~7)
 
 		PRECALC_ROTATE_WY
@@ -446,6 +445,16 @@
 
 .endm
 
+/* Add constant only if (%2 > %3) condition met (uses RTA as temp)
+ * %1 + %2 >= %3 ? %4 : 0
+ */
+.macro ADD_IF_GE a, b, c, d
+	mov     \a, RTA
+	add     $\d, RTA
+	cmp     $\c, \b
+	cmovge  RTA, \a
+.endm
+
 /*
  * macro implements 80 rounds of SHA-1, for multiple blocks with s/w pipelining
  */
@@ -463,13 +472,16 @@
 	lea	(2*4*80+32)(%rsp), WK_BUF
 
 	# Precalc WK for first 2 blocks
-	PRECALC_OFFSET = 0
+	ADD_IF_GE BUFFER_PTR2, BLOCKS_CTR, 2, 64
 	.set i, 0
 	.rept    160
 		PRECALC i
 		.set i, i + 1
 	.endr
-	PRECALC_OFFSET = 128
+
+	/* Go to next block if needed */
+	ADD_IF_GE BUFFER_PTR, BLOCKS_CTR, 3, 128
+	ADD_IF_GE BUFFER_PTR2, BLOCKS_CTR, 4, 128
 	xchg	WK_BUF, PRECALC_BUF
 
 	.align 32
@@ -479,8 +491,8 @@ _loop:
 	 * we use K_BASE value as a signal of a last block,
 	 * it is set below by: cmovae BUFFER_PTR, K_BASE
 	 */
-	cmp	K_BASE, BUFFER_PTR
-	jne	_begin
+	test BLOCKS_CTR, BLOCKS_CTR
+	jnz _begin
 	.align 32
 	jmp	_end
 	.align 32
@@ -512,10 +524,10 @@ _loop0:
 		.set j, j+2
 	.endr
 
-	add	$(2*64), BUFFER_PTR       /* move to next odd-64-byte block */
-	cmp	BUFFER_END, BUFFER_PTR    /* is current block the last one? */
-	cmovae	K_BASE, BUFFER_PTR	/* signal the last iteration smartly */
-
+	/* Update Counter */
+	sub $1, BLOCKS_CTR
+	/* Move to the next block only if needed*/
+	ADD_IF_GE BUFFER_PTR, BLOCKS_CTR, 4, 128
 	/*
 	 * rounds
 	 * 60,62,64,66,68
@@ -532,8 +544,8 @@ _loop0:
 	UPDATE_HASH	12(HASH_PTR), D
 	UPDATE_HASH	16(HASH_PTR), E
 
-	cmp	K_BASE, BUFFER_PTR	/* is current block the last one? */
-	je	_loop
+	test	BLOCKS_CTR, BLOCKS_CTR
+	jz	_loop
 
 	mov	TB, B
 
@@ -575,10 +587,10 @@ _loop2:
 		.set j, j+2
 	.endr
 
-	add	$(2*64), BUFFER_PTR2      /* move to next even-64-byte block */
-
-	cmp	BUFFER_END, BUFFER_PTR2   /* is current block the last one */
-	cmovae	K_BASE, BUFFER_PTR       /* signal the last iteration smartly */
+	/* update counter */
+	sub     $1, BLOCKS_CTR
+	/* Move to the next block only if needed*/
+	ADD_IF_GE BUFFER_PTR2, BLOCKS_CTR, 4, 128
 
 	jmp	_loop3
 _loop3:
@@ -641,19 +653,12 @@ _loop3:
 
 	avx2_zeroupper
 
-	lea	K_XMM_AR(%rip), K_BASE
-
+	/* Setup initial values */
 	mov	CTX, HASH_PTR
 	mov	BUF, BUFFER_PTR
-	lea	64(BUF), BUFFER_PTR2
-
-	shl	$6, CNT			/* mul by 64 */
-	add	BUF, CNT
-	add	$64, CNT
-	mov	CNT, BUFFER_END
 
-	cmp	BUFFER_END, BUFFER_PTR2
-	cmovae	K_BASE, BUFFER_PTR2
+	mov	BUF, BUFFER_PTR2
+	mov	CNT, BLOCKS_CTR
 
 	xmm_mov	BSWAP_SHUFB_CTL(%rip), YMM_SHUFB_BSWAP
 
diff --git a/arch/x86/entry/entry_64.S b/arch/x86/entry/entry_64.S
index a9a8027a6c0e..6d078b89a5e8 100644
--- a/arch/x86/entry/entry_64.S
+++ b/arch/x86/entry/entry_64.S
@@ -705,6 +705,7 @@ apicinterrupt X86_PLATFORM_IPI_VECTOR		x86_platform_ipi		smp_x86_platform_ipi
 #ifdef CONFIG_HAVE_KVM
 apicinterrupt3 POSTED_INTR_VECTOR		kvm_posted_intr_ipi		smp_kvm_posted_intr_ipi
 apicinterrupt3 POSTED_INTR_WAKEUP_VECTOR	kvm_posted_intr_wakeup_ipi	smp_kvm_posted_intr_wakeup_ipi
+apicinterrupt3 POSTED_INTR_NESTED_VECTOR	kvm_posted_intr_nested_ipi	smp_kvm_posted_intr_nested_ipi
 #endif
 
 #ifdef CONFIG_X86_MCE_THRESHOLD
@@ -1210,6 +1211,8 @@ ENTRY(nmi)
 	 * other IST entries.
 	 */
 
+	ASM_CLAC
+
 	/* Use %rdx as our temp variable throughout */
 	pushq	%rdx
 
diff --git a/arch/x86/events/core.c b/arch/x86/events/core.c
index ff1ea2fb9705..af12e294caed 100644
--- a/arch/x86/events/core.c
+++ b/arch/x86/events/core.c
@@ -191,8 +191,8 @@ static void release_pmc_hardware(void) {}
 
 static bool check_hw_exists(void)
 {
-	u64 val, val_fail, val_new= ~0;
-	int i, reg, reg_fail, ret = 0;
+	u64 val, val_fail = -1, val_new= ~0;
+	int i, reg, reg_fail = -1, ret = 0;
 	int bios_fail = 0;
 	int reg_safe = -1;
 
@@ -2114,7 +2114,7 @@ static void refresh_pce(void *ignored)
 	load_mm_cr4(this_cpu_read(cpu_tlbstate.loaded_mm));
 }
 
-static void x86_pmu_event_mapped(struct perf_event *event)
+static void x86_pmu_event_mapped(struct perf_event *event, struct mm_struct *mm)
 {
 	if (!(event->hw.flags & PERF_X86_EVENT_RDPMC_ALLOWED))
 		return;
@@ -2129,22 +2129,20 @@ static void x86_pmu_event_mapped(struct perf_event *event)
 	 * For now, this can't happen because all callers hold mmap_sem
 	 * for write.  If this changes, we'll need a different solution.
 	 */
-	lockdep_assert_held_exclusive(&current->mm->mmap_sem);
+	lockdep_assert_held_exclusive(&mm->mmap_sem);
 
-	if (atomic_inc_return(&current->mm->context.perf_rdpmc_allowed) == 1)
-		on_each_cpu_mask(mm_cpumask(current->mm), refresh_pce, NULL, 1);
+	if (atomic_inc_return(&mm->context.perf_rdpmc_allowed) == 1)
+		on_each_cpu_mask(mm_cpumask(mm), refresh_pce, NULL, 1);
 }
 
-static void x86_pmu_event_unmapped(struct perf_event *event)
+static void x86_pmu_event_unmapped(struct perf_event *event, struct mm_struct *mm)
 {
-	if (!current->mm)
-		return;
 
 	if (!(event->hw.flags & PERF_X86_EVENT_RDPMC_ALLOWED))
 		return;
 
-	if (atomic_dec_and_test(&current->mm->context.perf_rdpmc_allowed))
-		on_each_cpu_mask(mm_cpumask(current->mm), refresh_pce, NULL, 1);
+	if (atomic_dec_and_test(&mm->context.perf_rdpmc_allowed))
+		on_each_cpu_mask(mm_cpumask(mm), refresh_pce, NULL, 1);
 }
 
 static int x86_pmu_event_idx(struct perf_event *event)
diff --git a/arch/x86/events/intel/bts.c b/arch/x86/events/intel/bts.c
index 8ae8c5ce3a1f..ddd8d3516bfc 100644
--- a/arch/x86/events/intel/bts.c
+++ b/arch/x86/events/intel/bts.c
@@ -69,7 +69,7 @@ struct bts_buffer {
 	struct bts_phys	buf[0];
 };
 
-struct pmu bts_pmu;
+static struct pmu bts_pmu;
 
 static size_t buf_size(struct page *page)
 {
diff --git a/arch/x86/events/intel/core.c b/arch/x86/events/intel/core.c
index aa62437d1aa1..98b0f0729527 100644
--- a/arch/x86/events/intel/core.c
+++ b/arch/x86/events/intel/core.c
@@ -1708,6 +1708,120 @@ static __initconst const u64 glm_hw_cache_extra_regs
 	},
 };
 
+static __initconst const u64 glp_hw_cache_event_ids
+				[PERF_COUNT_HW_CACHE_MAX]
+				[PERF_COUNT_HW_CACHE_OP_MAX]
+				[PERF_COUNT_HW_CACHE_RESULT_MAX] = {
+	[C(L1D)] = {
+		[C(OP_READ)] = {
+			[C(RESULT_ACCESS)]	= 0x81d0,	/* MEM_UOPS_RETIRED.ALL_LOADS */
+			[C(RESULT_MISS)]	= 0x0,
+		},
+		[C(OP_WRITE)] = {
+			[C(RESULT_ACCESS)]	= 0x82d0,	/* MEM_UOPS_RETIRED.ALL_STORES */
+			[C(RESULT_MISS)]	= 0x0,
+		},
+		[C(OP_PREFETCH)] = {
+			[C(RESULT_ACCESS)]	= 0x0,
+			[C(RESULT_MISS)]	= 0x0,
+		},
+	},
+	[C(L1I)] = {
+		[C(OP_READ)] = {
+			[C(RESULT_ACCESS)]	= 0x0380,	/* ICACHE.ACCESSES */
+			[C(RESULT_MISS)]	= 0x0280,	/* ICACHE.MISSES */
+		},
+		[C(OP_WRITE)] = {
+			[C(RESULT_ACCESS)]	= -1,
+			[C(RESULT_MISS)]	= -1,
+		},
+		[C(OP_PREFETCH)] = {
+			[C(RESULT_ACCESS)]	= 0x0,
+			[C(RESULT_MISS)]	= 0x0,
+		},
+	},
+	[C(LL)] = {
+		[C(OP_READ)] = {
+			[C(RESULT_ACCESS)]	= 0x1b7,	/* OFFCORE_RESPONSE */
+			[C(RESULT_MISS)]	= 0x1b7,	/* OFFCORE_RESPONSE */
+		},
+		[C(OP_WRITE)] = {
+			[C(RESULT_ACCESS)]	= 0x1b7,	/* OFFCORE_RESPONSE */
+			[C(RESULT_MISS)]	= 0x1b7,	/* OFFCORE_RESPONSE */
+		},
+		[C(OP_PREFETCH)] = {
+			[C(RESULT_ACCESS)]	= 0x0,
+			[C(RESULT_MISS)]	= 0x0,
+		},
+	},
+	[C(DTLB)] = {
+		[C(OP_READ)] = {
+			[C(RESULT_ACCESS)]	= 0x81d0,	/* MEM_UOPS_RETIRED.ALL_LOADS */
+			[C(RESULT_MISS)]	= 0xe08,	/* DTLB_LOAD_MISSES.WALK_COMPLETED */
+		},
+		[C(OP_WRITE)] = {
+			[C(RESULT_ACCESS)]	= 0x82d0,	/* MEM_UOPS_RETIRED.ALL_STORES */
+			[C(RESULT_MISS)]	= 0xe49,	/* DTLB_STORE_MISSES.WALK_COMPLETED */
+		},
+		[C(OP_PREFETCH)] = {
+			[C(RESULT_ACCESS)]	= 0x0,
+			[C(RESULT_MISS)]	= 0x0,
+		},
+	},
+	[C(ITLB)] = {
+		[C(OP_READ)] = {
+			[C(RESULT_ACCESS)]	= 0x00c0,	/* INST_RETIRED.ANY_P */
+			[C(RESULT_MISS)]	= 0x0481,	/* ITLB.MISS */
+		},
+		[C(OP_WRITE)] = {
+			[C(RESULT_ACCESS)]	= -1,
+			[C(RESULT_MISS)]	= -1,
+		},
+		[C(OP_PREFETCH)] = {
+			[C(RESULT_ACCESS)]	= -1,
+			[C(RESULT_MISS)]	= -1,
+		},
+	},
+	[C(BPU)] = {
+		[C(OP_READ)] = {
+			[C(RESULT_ACCESS)]	= 0x00c4,	/* BR_INST_RETIRED.ALL_BRANCHES */
+			[C(RESULT_MISS)]	= 0x00c5,	/* BR_MISP_RETIRED.ALL_BRANCHES */
+		},
+		[C(OP_WRITE)] = {
+			[C(RESULT_ACCESS)]	= -1,
+			[C(RESULT_MISS)]	= -1,
+		},
+		[C(OP_PREFETCH)] = {
+			[C(RESULT_ACCESS)]	= -1,
+			[C(RESULT_MISS)]	= -1,
+		},
+	},
+};
+
+static __initconst const u64 glp_hw_cache_extra_regs
+				[PERF_COUNT_HW_CACHE_MAX]
+				[PERF_COUNT_HW_CACHE_OP_MAX]
+				[PERF_COUNT_HW_CACHE_RESULT_MAX] = {
+	[C(LL)] = {
+		[C(OP_READ)] = {
+			[C(RESULT_ACCESS)]	= GLM_DEMAND_READ|
+						  GLM_LLC_ACCESS,
+			[C(RESULT_MISS)]	= GLM_DEMAND_READ|
+						  GLM_LLC_MISS,
+		},
+		[C(OP_WRITE)] = {
+			[C(RESULT_ACCESS)]	= GLM_DEMAND_WRITE|
+						  GLM_LLC_ACCESS,
+			[C(RESULT_MISS)]	= GLM_DEMAND_WRITE|
+						  GLM_LLC_MISS,
+		},
+		[C(OP_PREFETCH)] = {
+			[C(RESULT_ACCESS)]	= 0x0,
+			[C(RESULT_MISS)]	= 0x0,
+		},
+	},
+};
+
 #define KNL_OT_L2_HITE		BIT_ULL(19) /* Other Tile L2 Hit */
 #define KNL_OT_L2_HITF		BIT_ULL(20) /* Other Tile L2 Hit */
 #define KNL_MCDRAM_LOCAL	BIT_ULL(21)
@@ -3016,6 +3130,9 @@ static int hsw_hw_config(struct perf_event *event)
 	return 0;
 }
 
+static struct event_constraint counter0_constraint =
+			INTEL_ALL_EVENT_CONSTRAINT(0, 0x1);
+
 static struct event_constraint counter2_constraint =
 			EVENT_CONSTRAINT(0, 0x4, 0);
 
@@ -3037,6 +3154,21 @@ hsw_get_event_constraints(struct cpu_hw_events *cpuc, int idx,
 	return c;
 }
 
+static struct event_constraint *
+glp_get_event_constraints(struct cpu_hw_events *cpuc, int idx,
+			  struct perf_event *event)
+{
+	struct event_constraint *c;
+
+	/* :ppp means to do reduced skid PEBS which is PMC0 only. */
+	if (event->attr.precise_ip == 3)
+		return &counter0_constraint;
+
+	c = intel_get_event_constraints(cpuc, idx, event);
+
+	return c;
+}
+
 /*
  * Broadwell:
  *
@@ -3265,10 +3397,8 @@ static void intel_pmu_cpu_dying(int cpu)
 static void intel_pmu_sched_task(struct perf_event_context *ctx,
 				 bool sched_in)
 {
-	if (x86_pmu.pebs_active)
-		intel_pmu_pebs_sched_task(ctx, sched_in);
-	if (x86_pmu.lbr_nr)
-		intel_pmu_lbr_sched_task(ctx, sched_in);
+	intel_pmu_pebs_sched_task(ctx, sched_in);
+	intel_pmu_lbr_sched_task(ctx, sched_in);
 }
 
 PMU_FORMAT_ATTR(offcore_rsp, "config1:0-63");
@@ -3838,6 +3968,32 @@ __init int intel_pmu_init(void)
 		pr_cont("Goldmont events, ");
 		break;
 
+	case INTEL_FAM6_ATOM_GEMINI_LAKE:
+		memcpy(hw_cache_event_ids, glp_hw_cache_event_ids,
+		       sizeof(hw_cache_event_ids));
+		memcpy(hw_cache_extra_regs, glp_hw_cache_extra_regs,
+		       sizeof(hw_cache_extra_regs));
+
+		intel_pmu_lbr_init_skl();
+
+		x86_pmu.event_constraints = intel_slm_event_constraints;
+		x86_pmu.pebs_constraints = intel_glp_pebs_event_constraints;
+		x86_pmu.extra_regs = intel_glm_extra_regs;
+		/*
+		 * It's recommended to use CPU_CLK_UNHALTED.CORE_P + NPEBS
+		 * for precise cycles.
+		 */
+		x86_pmu.pebs_aliases = NULL;
+		x86_pmu.pebs_prec_dist = true;
+		x86_pmu.lbr_pt_coexist = true;
+		x86_pmu.flags |= PMU_FL_HAS_RSP_1;
+		x86_pmu.get_event_constraints = glp_get_event_constraints;
+		x86_pmu.cpu_events = glm_events_attrs;
+		/* Goldmont Plus has 4-wide pipeline */
+		event_attr_td_total_slots_scale_glm.event_str = "4";
+		pr_cont("Goldmont plus events, ");
+		break;
+
 	case INTEL_FAM6_WESTMERE:
 	case INTEL_FAM6_WESTMERE_EP:
 	case INTEL_FAM6_WESTMERE_EX:
diff --git a/arch/x86/events/intel/cstate.c b/arch/x86/events/intel/cstate.c
index 238ae3248ba5..4cf100ff2a37 100644
--- a/arch/x86/events/intel/cstate.c
+++ b/arch/x86/events/intel/cstate.c
@@ -40,16 +40,16 @@
  * Model specific counters:
  *	MSR_CORE_C1_RES: CORE C1 Residency Counter
  *			 perf code: 0x00
- *			 Available model: SLM,AMT
+ *			 Available model: SLM,AMT,GLM
  *			 Scope: Core (each processor core has a MSR)
  *	MSR_CORE_C3_RESIDENCY: CORE C3 Residency Counter
  *			       perf code: 0x01
- *			       Available model: NHM,WSM,SNB,IVB,HSW,BDW,SKL
+ *			       Available model: NHM,WSM,SNB,IVB,HSW,BDW,SKL,GLM
  *			       Scope: Core
  *	MSR_CORE_C6_RESIDENCY: CORE C6 Residency Counter
  *			       perf code: 0x02
  *			       Available model: SLM,AMT,NHM,WSM,SNB,IVB,HSW,BDW
- *						SKL,KNL
+ *						SKL,KNL,GLM
  *			       Scope: Core
  *	MSR_CORE_C7_RESIDENCY: CORE C7 Residency Counter
  *			       perf code: 0x03
@@ -57,16 +57,17 @@
  *			       Scope: Core
  *	MSR_PKG_C2_RESIDENCY:  Package C2 Residency Counter.
  *			       perf code: 0x00
- *			       Available model: SNB,IVB,HSW,BDW,SKL,KNL
+ *			       Available model: SNB,IVB,HSW,BDW,SKL,KNL,GLM
  *			       Scope: Package (physical package)
  *	MSR_PKG_C3_RESIDENCY:  Package C3 Residency Counter.
  *			       perf code: 0x01
  *			       Available model: NHM,WSM,SNB,IVB,HSW,BDW,SKL,KNL
+ *						GLM
  *			       Scope: Package (physical package)
  *	MSR_PKG_C6_RESIDENCY:  Package C6 Residency Counter.
  *			       perf code: 0x02
  *			       Available model: SLM,AMT,NHM,WSM,SNB,IVB,HSW,BDW
- *						SKL,KNL
+ *						SKL,KNL,GLM
  *			       Scope: Package (physical package)
  *	MSR_PKG_C7_RESIDENCY:  Package C7 Residency Counter.
  *			       perf code: 0x03
@@ -82,7 +83,7 @@
  *			       Scope: Package (physical package)
  *	MSR_PKG_C10_RESIDENCY: Package C10 Residency Counter.
  *			       perf code: 0x06
- *			       Available model: HSW ULT only
+ *			       Available model: HSW ULT, GLM
  *			       Scope: Package (physical package)
  *
  */
@@ -504,6 +505,17 @@ static const struct cstate_model knl_cstates __initconst = {
 };
 
 
+static const struct cstate_model glm_cstates __initconst = {
+	.core_events		= BIT(PERF_CSTATE_CORE_C1_RES) |
+				  BIT(PERF_CSTATE_CORE_C3_RES) |
+				  BIT(PERF_CSTATE_CORE_C6_RES),
+
+	.pkg_events		= BIT(PERF_CSTATE_PKG_C2_RES) |
+				  BIT(PERF_CSTATE_PKG_C3_RES) |
+				  BIT(PERF_CSTATE_PKG_C6_RES) |
+				  BIT(PERF_CSTATE_PKG_C10_RES),
+};
+
 
 #define X86_CSTATES_MODEL(model, states)				\
 	{ X86_VENDOR_INTEL, 6, model, X86_FEATURE_ANY, (unsigned long) &(states) }
@@ -546,6 +558,8 @@ static const struct x86_cpu_id intel_cstates_match[] __initconst = {
 
 	X86_CSTATES_MODEL(INTEL_FAM6_XEON_PHI_KNL, knl_cstates),
 	X86_CSTATES_MODEL(INTEL_FAM6_XEON_PHI_KNM, knl_cstates),
+
+	X86_CSTATES_MODEL(INTEL_FAM6_ATOM_GOLDMONT, glm_cstates),
 	{ },
 };
 MODULE_DEVICE_TABLE(x86cpu, intel_cstates_match);
diff --git a/arch/x86/events/intel/ds.c b/arch/x86/events/intel/ds.c
index c6d23ffe422d..a322fed5f8ed 100644
--- a/arch/x86/events/intel/ds.c
+++ b/arch/x86/events/intel/ds.c
@@ -606,12 +606,6 @@ static inline void intel_pmu_drain_pebs_buffer(void)
 	x86_pmu.drain_pebs(&regs);
 }
 
-void intel_pmu_pebs_sched_task(struct perf_event_context *ctx, bool sched_in)
-{
-	if (!sched_in)
-		intel_pmu_drain_pebs_buffer();
-}
-
 /*
  * PEBS
  */
@@ -651,6 +645,12 @@ struct event_constraint intel_glm_pebs_event_constraints[] = {
 	EVENT_CONSTRAINT_END
 };
 
+struct event_constraint intel_glp_pebs_event_constraints[] = {
+	/* Allow all events as PEBS with no flags */
+	INTEL_ALL_EVENT_CONSTRAINT(0, 0xf),
+	EVENT_CONSTRAINT_END
+};
+
 struct event_constraint intel_nehalem_pebs_event_constraints[] = {
 	INTEL_PLD_CONSTRAINT(0x100b, 0xf),      /* MEM_INST_RETIRED.* */
 	INTEL_FLAGS_EVENT_CONSTRAINT(0x0f, 0xf),    /* MEM_UNCORE_RETIRED.* */
@@ -816,6 +816,14 @@ static inline bool pebs_needs_sched_cb(struct cpu_hw_events *cpuc)
 	return cpuc->n_pebs && (cpuc->n_pebs == cpuc->n_large_pebs);
 }
 
+void intel_pmu_pebs_sched_task(struct perf_event_context *ctx, bool sched_in)
+{
+	struct cpu_hw_events *cpuc = this_cpu_ptr(&cpu_hw_events);
+
+	if (!sched_in && pebs_needs_sched_cb(cpuc))
+		intel_pmu_drain_pebs_buffer();
+}
+
 static inline void pebs_update_threshold(struct cpu_hw_events *cpuc)
 {
 	struct debug_store *ds = cpuc->ds;
@@ -889,6 +897,8 @@ void intel_pmu_pebs_enable(struct perf_event *event)
 	if (hwc->flags & PERF_X86_EVENT_AUTO_RELOAD) {
 		ds->pebs_event_reset[hwc->idx] =
 			(u64)(-hwc->sample_period) & x86_pmu.cntval_mask;
+	} else {
+		ds->pebs_event_reset[hwc->idx] = 0;
 	}
 }
 
diff --git a/arch/x86/events/intel/lbr.c b/arch/x86/events/intel/lbr.c
index eb261656a320..955457a30197 100644
--- a/arch/x86/events/intel/lbr.c
+++ b/arch/x86/events/intel/lbr.c
@@ -380,8 +380,12 @@ static void __intel_pmu_lbr_save(struct x86_perf_task_context *task_ctx)
 
 void intel_pmu_lbr_sched_task(struct perf_event_context *ctx, bool sched_in)
 {
+	struct cpu_hw_events *cpuc = this_cpu_ptr(&cpu_hw_events);
 	struct x86_perf_task_context *task_ctx;
 
+	if (!cpuc->lbr_users)
+		return;
+
 	/*
 	 * If LBR callstack feature is enabled and the stack was saved when
 	 * the task was scheduled out, restore the stack. Otherwise flush
diff --git a/arch/x86/events/intel/p4.c b/arch/x86/events/intel/p4.c
index eb0533558c2b..d32c0eed38ca 100644
--- a/arch/x86/events/intel/p4.c
+++ b/arch/x86/events/intel/p4.c
@@ -587,7 +587,7 @@ static __initconst const u64 p4_hw_cache_event_ids
  * P4_CONFIG_ALIASABLE or bits for P4_PEBS_METRIC, they are
  * either up to date automatically or not applicable at all.
  */
-struct p4_event_alias {
+static struct p4_event_alias {
 	u64 original;
 	u64 alternative;
 } p4_event_aliases[] = {
diff --git a/arch/x86/events/intel/rapl.c b/arch/x86/events/intel/rapl.c
index a45e2114a846..8e2457cb6b4a 100644
--- a/arch/x86/events/intel/rapl.c
+++ b/arch/x86/events/intel/rapl.c
@@ -559,7 +559,7 @@ static struct attribute_group rapl_pmu_format_group = {
 	.attrs = rapl_formats_attr,
 };
 
-const struct attribute_group *rapl_attr_groups[] = {
+static const struct attribute_group *rapl_attr_groups[] = {
 	&rapl_pmu_attr_group,
 	&rapl_pmu_format_group,
 	&rapl_pmu_events_group,
diff --git a/arch/x86/events/intel/uncore.c b/arch/x86/events/intel/uncore.c
index 44ec523287f6..1c5390f1cf09 100644
--- a/arch/x86/events/intel/uncore.c
+++ b/arch/x86/events/intel/uncore.c
@@ -721,7 +721,7 @@ static struct attribute *uncore_pmu_attrs[] = {
 	NULL,
 };
 
-static struct attribute_group uncore_pmu_attr_group = {
+static const struct attribute_group uncore_pmu_attr_group = {
 	.attrs = uncore_pmu_attrs,
 };
 
diff --git a/arch/x86/events/intel/uncore_nhmex.c b/arch/x86/events/intel/uncore_nhmex.c
index cda569332005..6a5cbe90f859 100644
--- a/arch/x86/events/intel/uncore_nhmex.c
+++ b/arch/x86/events/intel/uncore_nhmex.c
@@ -272,7 +272,7 @@ static struct attribute *nhmex_uncore_ubox_formats_attr[] = {
 	NULL,
 };
 
-static struct attribute_group nhmex_uncore_ubox_format_group = {
+static const struct attribute_group nhmex_uncore_ubox_format_group = {
 	.name		= "format",
 	.attrs		= nhmex_uncore_ubox_formats_attr,
 };
@@ -299,7 +299,7 @@ static struct attribute *nhmex_uncore_cbox_formats_attr[] = {
 	NULL,
 };
 
-static struct attribute_group nhmex_uncore_cbox_format_group = {
+static const struct attribute_group nhmex_uncore_cbox_format_group = {
 	.name = "format",
 	.attrs = nhmex_uncore_cbox_formats_attr,
 };
@@ -407,7 +407,7 @@ static struct attribute *nhmex_uncore_bbox_formats_attr[] = {
 	NULL,
 };
 
-static struct attribute_group nhmex_uncore_bbox_format_group = {
+static const struct attribute_group nhmex_uncore_bbox_format_group = {
 	.name = "format",
 	.attrs = nhmex_uncore_bbox_formats_attr,
 };
@@ -484,7 +484,7 @@ static struct attribute *nhmex_uncore_sbox_formats_attr[] = {
 	NULL,
 };
 
-static struct attribute_group nhmex_uncore_sbox_format_group = {
+static const struct attribute_group nhmex_uncore_sbox_format_group = {
 	.name			= "format",
 	.attrs			= nhmex_uncore_sbox_formats_attr,
 };
@@ -898,7 +898,7 @@ static struct attribute *nhmex_uncore_mbox_formats_attr[] = {
 	NULL,
 };
 
-static struct attribute_group nhmex_uncore_mbox_format_group = {
+static const struct attribute_group nhmex_uncore_mbox_format_group = {
 	.name		= "format",
 	.attrs		= nhmex_uncore_mbox_formats_attr,
 };
@@ -1163,7 +1163,7 @@ static struct attribute *nhmex_uncore_rbox_formats_attr[] = {
 	NULL,
 };
 
-static struct attribute_group nhmex_uncore_rbox_format_group = {
+static const struct attribute_group nhmex_uncore_rbox_format_group = {
 	.name = "format",
 	.attrs = nhmex_uncore_rbox_formats_attr,
 };
diff --git a/arch/x86/events/intel/uncore_snb.c b/arch/x86/events/intel/uncore_snb.c
index a3dcc12bef4a..db1127ce685e 100644
--- a/arch/x86/events/intel/uncore_snb.c
+++ b/arch/x86/events/intel/uncore_snb.c
@@ -130,7 +130,7 @@ static struct attribute *snb_uncore_formats_attr[] = {
 	NULL,
 };
 
-static struct attribute_group snb_uncore_format_group = {
+static const struct attribute_group snb_uncore_format_group = {
 	.name		= "format",
 	.attrs		= snb_uncore_formats_attr,
 };
@@ -289,7 +289,7 @@ static struct attribute *snb_uncore_imc_formats_attr[] = {
 	NULL,
 };
 
-static struct attribute_group snb_uncore_imc_format_group = {
+static const struct attribute_group snb_uncore_imc_format_group = {
 	.name = "format",
 	.attrs = snb_uncore_imc_formats_attr,
 };
@@ -769,7 +769,7 @@ static struct attribute *nhm_uncore_formats_attr[] = {
 	NULL,
 };
 
-static struct attribute_group nhm_uncore_format_group = {
+static const struct attribute_group nhm_uncore_format_group = {
 	.name = "format",
 	.attrs = nhm_uncore_formats_attr,
 };
diff --git a/arch/x86/events/intel/uncore_snbep.c b/arch/x86/events/intel/uncore_snbep.c
index dae2fedc1601..db1fe377e6dd 100644
--- a/arch/x86/events/intel/uncore_snbep.c
+++ b/arch/x86/events/intel/uncore_snbep.c
@@ -316,7 +316,7 @@
 #define SKX_UPI_PCI_PMON_CTL0		0x350
 #define SKX_UPI_PCI_PMON_CTR0		0x318
 #define SKX_UPI_PCI_PMON_BOX_CTL	0x378
-#define SKX_PMON_CTL_UMASK_EXT		0xff
+#define SKX_UPI_CTL_UMASK_EXT		0xffefff
 
 /* SKX M2M */
 #define SKX_M2M_PCI_PMON_CTL0		0x228
@@ -328,7 +328,7 @@ DEFINE_UNCORE_FORMAT_ATTR(event2, event, "config:0-6");
 DEFINE_UNCORE_FORMAT_ATTR(event_ext, event, "config:0-7,21");
 DEFINE_UNCORE_FORMAT_ATTR(use_occ_ctr, use_occ_ctr, "config:7");
 DEFINE_UNCORE_FORMAT_ATTR(umask, umask, "config:8-15");
-DEFINE_UNCORE_FORMAT_ATTR(umask_ext, umask, "config:8-15,32-39");
+DEFINE_UNCORE_FORMAT_ATTR(umask_ext, umask, "config:8-15,32-43,45-55");
 DEFINE_UNCORE_FORMAT_ATTR(qor, qor, "config:16");
 DEFINE_UNCORE_FORMAT_ATTR(edge, edge, "config:18");
 DEFINE_UNCORE_FORMAT_ATTR(tid_en, tid_en, "config:19");
@@ -351,7 +351,6 @@ DEFINE_UNCORE_FORMAT_ATTR(filter_cid, filter_cid, "config1:5");
 DEFINE_UNCORE_FORMAT_ATTR(filter_link, filter_link, "config1:5-8");
 DEFINE_UNCORE_FORMAT_ATTR(filter_link2, filter_link, "config1:6-8");
 DEFINE_UNCORE_FORMAT_ATTR(filter_link3, filter_link, "config1:12");
-DEFINE_UNCORE_FORMAT_ATTR(filter_link4, filter_link, "config1:9-12");
 DEFINE_UNCORE_FORMAT_ATTR(filter_nid, filter_nid, "config1:10-17");
 DEFINE_UNCORE_FORMAT_ATTR(filter_nid2, filter_nid, "config1:32-47");
 DEFINE_UNCORE_FORMAT_ATTR(filter_state, filter_state, "config1:18-22");
@@ -603,27 +602,27 @@ static struct uncore_event_desc snbep_uncore_qpi_events[] = {
 	{ /* end: all zeroes */ },
 };
 
-static struct attribute_group snbep_uncore_format_group = {
+static const struct attribute_group snbep_uncore_format_group = {
 	.name = "format",
 	.attrs = snbep_uncore_formats_attr,
 };
 
-static struct attribute_group snbep_uncore_ubox_format_group = {
+static const struct attribute_group snbep_uncore_ubox_format_group = {
 	.name = "format",
 	.attrs = snbep_uncore_ubox_formats_attr,
 };
 
-static struct attribute_group snbep_uncore_cbox_format_group = {
+static const struct attribute_group snbep_uncore_cbox_format_group = {
 	.name = "format",
 	.attrs = snbep_uncore_cbox_formats_attr,
 };
 
-static struct attribute_group snbep_uncore_pcu_format_group = {
+static const struct attribute_group snbep_uncore_pcu_format_group = {
 	.name = "format",
 	.attrs = snbep_uncore_pcu_formats_attr,
 };
 
-static struct attribute_group snbep_uncore_qpi_format_group = {
+static const struct attribute_group snbep_uncore_qpi_format_group = {
 	.name = "format",
 	.attrs = snbep_uncore_qpi_formats_attr,
 };
@@ -1432,27 +1431,27 @@ static struct attribute *ivbep_uncore_qpi_formats_attr[] = {
 	NULL,
 };
 
-static struct attribute_group ivbep_uncore_format_group = {
+static const struct attribute_group ivbep_uncore_format_group = {
 	.name = "format",
 	.attrs = ivbep_uncore_formats_attr,
 };
 
-static struct attribute_group ivbep_uncore_ubox_format_group = {
+static const struct attribute_group ivbep_uncore_ubox_format_group = {
 	.name = "format",
 	.attrs = ivbep_uncore_ubox_formats_attr,
 };
 
-static struct attribute_group ivbep_uncore_cbox_format_group = {
+static const struct attribute_group ivbep_uncore_cbox_format_group = {
 	.name = "format",
 	.attrs = ivbep_uncore_cbox_formats_attr,
 };
 
-static struct attribute_group ivbep_uncore_pcu_format_group = {
+static const struct attribute_group ivbep_uncore_pcu_format_group = {
 	.name = "format",
 	.attrs = ivbep_uncore_pcu_formats_attr,
 };
 
-static struct attribute_group ivbep_uncore_qpi_format_group = {
+static const struct attribute_group ivbep_uncore_qpi_format_group = {
 	.name = "format",
 	.attrs = ivbep_uncore_qpi_formats_attr,
 };
@@ -1888,7 +1887,7 @@ static struct attribute *knl_uncore_ubox_formats_attr[] = {
 	NULL,
 };
 
-static struct attribute_group knl_uncore_ubox_format_group = {
+static const struct attribute_group knl_uncore_ubox_format_group = {
 	.name = "format",
 	.attrs = knl_uncore_ubox_formats_attr,
 };
@@ -1928,7 +1927,7 @@ static struct attribute *knl_uncore_cha_formats_attr[] = {
 	NULL,
 };
 
-static struct attribute_group knl_uncore_cha_format_group = {
+static const struct attribute_group knl_uncore_cha_format_group = {
 	.name = "format",
 	.attrs = knl_uncore_cha_formats_attr,
 };
@@ -2038,7 +2037,7 @@ static struct attribute *knl_uncore_pcu_formats_attr[] = {
 	NULL,
 };
 
-static struct attribute_group knl_uncore_pcu_format_group = {
+static const struct attribute_group knl_uncore_pcu_format_group = {
 	.name = "format",
 	.attrs = knl_uncore_pcu_formats_attr,
 };
@@ -2188,7 +2187,7 @@ static struct attribute *knl_uncore_irp_formats_attr[] = {
 	NULL,
 };
 
-static struct attribute_group knl_uncore_irp_format_group = {
+static const struct attribute_group knl_uncore_irp_format_group = {
 	.name = "format",
 	.attrs = knl_uncore_irp_formats_attr,
 };
@@ -2386,7 +2385,7 @@ static struct attribute *hswep_uncore_ubox_formats_attr[] = {
 	NULL,
 };
 
-static struct attribute_group hswep_uncore_ubox_format_group = {
+static const struct attribute_group hswep_uncore_ubox_format_group = {
 	.name = "format",
 	.attrs = hswep_uncore_ubox_formats_attr,
 };
@@ -2440,7 +2439,7 @@ static struct attribute *hswep_uncore_cbox_formats_attr[] = {
 	NULL,
 };
 
-static struct attribute_group hswep_uncore_cbox_format_group = {
+static const struct attribute_group hswep_uncore_cbox_format_group = {
 	.name = "format",
 	.attrs = hswep_uncore_cbox_formats_attr,
 };
@@ -2622,7 +2621,7 @@ static struct attribute *hswep_uncore_sbox_formats_attr[] = {
 	NULL,
 };
 
-static struct attribute_group hswep_uncore_sbox_format_group = {
+static const struct attribute_group hswep_uncore_sbox_format_group = {
 	.name = "format",
 	.attrs = hswep_uncore_sbox_formats_attr,
 };
@@ -3302,7 +3301,6 @@ static struct attribute *skx_uncore_cha_formats_attr[] = {
 	&format_attr_inv.attr,
 	&format_attr_thresh8.attr,
 	&format_attr_filter_tid4.attr,
-	&format_attr_filter_link4.attr,
 	&format_attr_filter_state5.attr,
 	&format_attr_filter_rem.attr,
 	&format_attr_filter_loc.attr,
@@ -3312,12 +3310,11 @@ static struct attribute *skx_uncore_cha_formats_attr[] = {
 	&format_attr_filter_opc_0.attr,
 	&format_attr_filter_opc_1.attr,
 	&format_attr_filter_nc.attr,
-	&format_attr_filter_c6.attr,
 	&format_attr_filter_isoc.attr,
 	NULL,
 };
 
-static struct attribute_group skx_uncore_chabox_format_group = {
+static const struct attribute_group skx_uncore_chabox_format_group = {
 	.name = "format",
 	.attrs = skx_uncore_cha_formats_attr,
 };
@@ -3333,8 +3330,11 @@ static struct extra_reg skx_uncore_cha_extra_regs[] = {
 	SNBEP_CBO_EVENT_EXTRA_REG(0x0534, 0xffff, 0x4),
 	SNBEP_CBO_EVENT_EXTRA_REG(0x0934, 0xffff, 0x4),
 	SNBEP_CBO_EVENT_EXTRA_REG(0x1134, 0xffff, 0x4),
-	SNBEP_CBO_EVENT_EXTRA_REG(0x2134, 0xffff, 0x4),
-	SNBEP_CBO_EVENT_EXTRA_REG(0x8134, 0xffff, 0x4),
+	SNBEP_CBO_EVENT_EXTRA_REG(0x3134, 0xffff, 0x4),
+	SNBEP_CBO_EVENT_EXTRA_REG(0x9134, 0xffff, 0x4),
+	SNBEP_CBO_EVENT_EXTRA_REG(0x35, 0xff, 0x8),
+	SNBEP_CBO_EVENT_EXTRA_REG(0x36, 0xff, 0x8),
+	EVENT_EXTRA_END
 };
 
 static u64 skx_cha_filter_mask(int fields)
@@ -3347,6 +3347,17 @@ static u64 skx_cha_filter_mask(int fields)
 		mask |= SKX_CHA_MSR_PMON_BOX_FILTER_LINK;
 	if (fields & 0x4)
 		mask |= SKX_CHA_MSR_PMON_BOX_FILTER_STATE;
+	if (fields & 0x8) {
+		mask |= SKX_CHA_MSR_PMON_BOX_FILTER_REM;
+		mask |= SKX_CHA_MSR_PMON_BOX_FILTER_LOC;
+		mask |= SKX_CHA_MSR_PMON_BOX_FILTER_ALL_OPC;
+		mask |= SKX_CHA_MSR_PMON_BOX_FILTER_NM;
+		mask |= SKX_CHA_MSR_PMON_BOX_FILTER_NOT_NM;
+		mask |= SKX_CHA_MSR_PMON_BOX_FILTER_OPC0;
+		mask |= SKX_CHA_MSR_PMON_BOX_FILTER_OPC1;
+		mask |= SKX_CHA_MSR_PMON_BOX_FILTER_NC;
+		mask |= SKX_CHA_MSR_PMON_BOX_FILTER_ISOC;
+	}
 	return mask;
 }
 
@@ -3416,7 +3427,7 @@ static struct attribute *skx_uncore_iio_formats_attr[] = {
 	NULL,
 };
 
-static struct attribute_group skx_uncore_iio_format_group = {
+static const struct attribute_group skx_uncore_iio_format_group = {
 	.name = "format",
 	.attrs = skx_uncore_iio_formats_attr,
 };
@@ -3473,7 +3484,7 @@ static struct attribute *skx_uncore_formats_attr[] = {
 	NULL,
 };
 
-static struct attribute_group skx_uncore_format_group = {
+static const struct attribute_group skx_uncore_format_group = {
 	.name = "format",
 	.attrs = skx_uncore_formats_attr,
 };
@@ -3492,6 +3503,26 @@ static struct intel_uncore_type skx_uncore_irp = {
 	.format_group		= &skx_uncore_format_group,
 };
 
+static struct attribute *skx_uncore_pcu_formats_attr[] = {
+	&format_attr_event.attr,
+	&format_attr_umask.attr,
+	&format_attr_edge.attr,
+	&format_attr_inv.attr,
+	&format_attr_thresh8.attr,
+	&format_attr_occ_invert.attr,
+	&format_attr_occ_edge_det.attr,
+	&format_attr_filter_band0.attr,
+	&format_attr_filter_band1.attr,
+	&format_attr_filter_band2.attr,
+	&format_attr_filter_band3.attr,
+	NULL,
+};
+
+static struct attribute_group skx_uncore_pcu_format_group = {
+	.name = "format",
+	.attrs = skx_uncore_pcu_formats_attr,
+};
+
 static struct intel_uncore_ops skx_uncore_pcu_ops = {
 	IVBEP_UNCORE_MSR_OPS_COMMON_INIT(),
 	.hw_config		= hswep_pcu_hw_config,
@@ -3510,7 +3541,7 @@ static struct intel_uncore_type skx_uncore_pcu = {
 	.box_ctl		= HSWEP_PCU_MSR_PMON_BOX_CTL,
 	.num_shared_regs	= 1,
 	.ops			= &skx_uncore_pcu_ops,
-	.format_group		= &snbep_uncore_pcu_format_group,
+	.format_group		= &skx_uncore_pcu_format_group,
 };
 
 static struct intel_uncore_type *skx_msr_uncores[] = {
@@ -3574,7 +3605,7 @@ static struct attribute *skx_upi_uncore_formats_attr[] = {
 	NULL,
 };
 
-static struct attribute_group skx_upi_uncore_format_group = {
+static const struct attribute_group skx_upi_uncore_format_group = {
 	.name = "format",
 	.attrs = skx_upi_uncore_formats_attr,
 };
@@ -3603,8 +3634,8 @@ static struct intel_uncore_type skx_uncore_upi = {
 	.perf_ctr_bits	= 48,
 	.perf_ctr	= SKX_UPI_PCI_PMON_CTR0,
 	.event_ctl	= SKX_UPI_PCI_PMON_CTL0,
-	.event_mask	= SNBEP_QPI_PCI_PMON_RAW_EVENT_MASK,
-	.event_mask_ext = SKX_PMON_CTL_UMASK_EXT,
+	.event_mask	= SNBEP_PMON_RAW_EVENT_MASK,
+	.event_mask_ext = SKX_UPI_CTL_UMASK_EXT,
 	.box_ctl	= SKX_UPI_PCI_PMON_BOX_CTL,
 	.ops		= &skx_upi_uncore_pci_ops,
 	.format_group	= &skx_upi_uncore_format_group,
diff --git a/arch/x86/events/perf_event.h b/arch/x86/events/perf_event.h
index 53728eea1bed..476aec3a4cab 100644
--- a/arch/x86/events/perf_event.h
+++ b/arch/x86/events/perf_event.h
@@ -879,6 +879,8 @@ extern struct event_constraint intel_slm_pebs_event_constraints[];
 
 extern struct event_constraint intel_glm_pebs_event_constraints[];
 
+extern struct event_constraint intel_glp_pebs_event_constraints[];
+
 extern struct event_constraint intel_nehalem_pebs_event_constraints[];
 
 extern struct event_constraint intel_westmere_pebs_event_constraints[];
diff --git a/arch/x86/include/asm/bug.h b/arch/x86/include/asm/bug.h
index 39e702d90cdb..aa6b2023d8f8 100644
--- a/arch/x86/include/asm/bug.h
+++ b/arch/x86/include/asm/bug.h
@@ -35,7 +35,7 @@
 #define _BUG_FLAGS(ins, flags)						\
 do {									\
 	asm volatile("1:\t" ins "\n"					\
-		     ".pushsection __bug_table,\"a\"\n"			\
+		     ".pushsection __bug_table,\"aw\"\n"		\
 		     "2:\t" __BUG_REL(1b) "\t# bug_entry::bug_addr\n"	\
 		     "\t"  __BUG_REL(%c0) "\t# bug_entry::file\n"	\
 		     "\t.word %c1"        "\t# bug_entry::line\n"	\
@@ -52,7 +52,7 @@ do {									\
 #define _BUG_FLAGS(ins, flags)						\
 do {									\
 	asm volatile("1:\t" ins "\n"					\
-		     ".pushsection __bug_table,\"a\"\n"			\
+		     ".pushsection __bug_table,\"aw\"\n"		\
 		     "2:\t" __BUG_REL(1b) "\t# bug_entry::bug_addr\n"	\
 		     "\t.word %c0"        "\t# bug_entry::flags\n"	\
 		     "\t.org 2b+%c1\n"					\
diff --git a/arch/x86/include/asm/cpufeatures.h b/arch/x86/include/asm/cpufeatures.h
index 2701e5f8145b..5a28e8e55e36 100644
--- a/arch/x86/include/asm/cpufeatures.h
+++ b/arch/x86/include/asm/cpufeatures.h
@@ -286,6 +286,7 @@
 #define X86_FEATURE_PAUSEFILTER (15*32+10) /* filtered pause intercept */
 #define X86_FEATURE_PFTHRESHOLD (15*32+12) /* pause filter threshold */
 #define X86_FEATURE_AVIC	(15*32+13) /* Virtual Interrupt Controller */
+#define X86_FEATURE_V_VMSAVE_VMLOAD (15*32+15) /* Virtual VMSAVE VMLOAD */
 
 /* Intel-defined CPU features, CPUID level 0x00000007:0 (ecx), word 16 */
 #define X86_FEATURE_AVX512VBMI  (16*32+ 1) /* AVX512 Vector Bit Manipulation instructions*/
diff --git a/arch/x86/include/asm/efi.h b/arch/x86/include/asm/efi.h
index d2ff779f347e..796ff6c1aa53 100644
--- a/arch/x86/include/asm/efi.h
+++ b/arch/x86/include/asm/efi.h
@@ -33,7 +33,7 @@
 
 #ifdef CONFIG_X86_32
 
-extern unsigned long asmlinkage efi_call_phys(void *, ...);
+extern asmlinkage unsigned long efi_call_phys(void *, ...);
 
 #define arch_efi_call_virt_setup()	kernel_fpu_begin()
 #define arch_efi_call_virt_teardown()	kernel_fpu_end()
@@ -52,7 +52,7 @@ extern unsigned long asmlinkage efi_call_phys(void *, ...);
 
 #define EFI_LOADER_SIGNATURE	"EL64"
 
-extern u64 asmlinkage efi_call(void *fp, ...);
+extern asmlinkage u64 efi_call(void *fp, ...);
 
 #define efi_call_phys(f, args...)		efi_call((f), args)
 
diff --git a/arch/x86/include/asm/elf.h b/arch/x86/include/asm/elf.h
index 1c18d83d3f09..9aeb91935ce0 100644
--- a/arch/x86/include/asm/elf.h
+++ b/arch/x86/include/asm/elf.h
@@ -247,11 +247,11 @@ extern int force_personality32;
 
 /*
  * This is the base location for PIE (ET_DYN with INTERP) loads. On
- * 64-bit, this is raised to 4GB to leave the entire 32-bit address
+ * 64-bit, this is above 4GB to leave the entire 32-bit address
  * space open for things that want to use the area for 32-bit pointers.
  */
 #define ELF_ET_DYN_BASE		(mmap_is_ia32() ? 0x000400000UL : \
-						  0x100000000UL)
+						  (TASK_SIZE / 3 * 2))
 
 /* This yields a mask that user programs can use to figure out what
    instruction set this CPU supports.  This could be done in user space,
diff --git a/arch/x86/include/asm/entry_arch.h b/arch/x86/include/asm/entry_arch.h
index df002992d8fd..07b06955a05d 100644
--- a/arch/x86/include/asm/entry_arch.h
+++ b/arch/x86/include/asm/entry_arch.h
@@ -25,6 +25,8 @@ BUILD_INTERRUPT3(kvm_posted_intr_ipi, POSTED_INTR_VECTOR,
 		 smp_kvm_posted_intr_ipi)
 BUILD_INTERRUPT3(kvm_posted_intr_wakeup_ipi, POSTED_INTR_WAKEUP_VECTOR,
 		 smp_kvm_posted_intr_wakeup_ipi)
+BUILD_INTERRUPT3(kvm_posted_intr_nested_ipi, POSTED_INTR_NESTED_VECTOR,
+		 smp_kvm_posted_intr_nested_ipi)
 #endif
 
 /*
diff --git a/arch/x86/include/asm/hardirq.h b/arch/x86/include/asm/hardirq.h
index 9b76cd331990..ad1ed531febc 100644
--- a/arch/x86/include/asm/hardirq.h
+++ b/arch/x86/include/asm/hardirq.h
@@ -15,6 +15,7 @@ typedef struct {
 #ifdef CONFIG_HAVE_KVM
 	unsigned int kvm_posted_intr_ipis;
 	unsigned int kvm_posted_intr_wakeup_ipis;
+	unsigned int kvm_posted_intr_nested_ipis;
 #endif
 	unsigned int x86_platform_ipis;	/* arch dependent */
 	unsigned int apic_perf_irqs;
diff --git a/arch/x86/include/asm/hw_irq.h b/arch/x86/include/asm/hw_irq.h
index b90e1053049b..d6dbafbd4207 100644
--- a/arch/x86/include/asm/hw_irq.h
+++ b/arch/x86/include/asm/hw_irq.h
@@ -30,6 +30,7 @@ extern asmlinkage void apic_timer_interrupt(void);
 extern asmlinkage void x86_platform_ipi(void);
 extern asmlinkage void kvm_posted_intr_ipi(void);
 extern asmlinkage void kvm_posted_intr_wakeup_ipi(void);
+extern asmlinkage void kvm_posted_intr_nested_ipi(void);
 extern asmlinkage void error_interrupt(void);
 extern asmlinkage void irq_work_interrupt(void);
 
@@ -62,6 +63,7 @@ extern void trace_call_function_single_interrupt(void);
 #define trace_reboot_interrupt  reboot_interrupt
 #define trace_kvm_posted_intr_ipi kvm_posted_intr_ipi
 #define trace_kvm_posted_intr_wakeup_ipi kvm_posted_intr_wakeup_ipi
+#define trace_kvm_posted_intr_nested_ipi kvm_posted_intr_nested_ipi
 #endif /* CONFIG_TRACING */
 
 #ifdef	CONFIG_X86_LOCAL_APIC
diff --git a/arch/x86/include/asm/hypervisor.h b/arch/x86/include/asm/hypervisor.h
index 21126155a739..0ead9dbb9130 100644
--- a/arch/x86/include/asm/hypervisor.h
+++ b/arch/x86/include/asm/hypervisor.h
@@ -43,6 +43,9 @@ struct hypervisor_x86 {
 
 	/* pin current vcpu to specified physical cpu (run rarely) */
 	void		(*pin_vcpu)(int);
+
+	/* called during init_mem_mapping() to setup early mappings. */
+	void		(*init_mem_mapping)(void);
 };
 
 extern const struct hypervisor_x86 *x86_hyper;
@@ -57,8 +60,15 @@ extern const struct hypervisor_x86 x86_hyper_kvm;
 extern void init_hypervisor_platform(void);
 extern bool hypervisor_x2apic_available(void);
 extern void hypervisor_pin_vcpu(int cpu);
+
+static inline void hypervisor_init_mem_mapping(void)
+{
+	if (x86_hyper && x86_hyper->init_mem_mapping)
+		x86_hyper->init_mem_mapping();
+}
 #else
 static inline void init_hypervisor_platform(void) { }
 static inline bool hypervisor_x2apic_available(void) { return false; }
+static inline void hypervisor_init_mem_mapping(void) { }
 #endif /* CONFIG_HYPERVISOR_GUEST */
 #endif /* _ASM_X86_HYPERVISOR_H */
diff --git a/arch/x86/include/asm/io.h b/arch/x86/include/asm/io.h
index 7afb0e2f07f4..48febf07e828 100644
--- a/arch/x86/include/asm/io.h
+++ b/arch/x86/include/asm/io.h
@@ -328,13 +328,13 @@ static inline unsigned type in##bwl##_p(int port)			\
 static inline void outs##bwl(int port, const void *addr, unsigned long count) \
 {									\
 	asm volatile("rep; outs" #bwl					\
-		     : "+S"(addr), "+c"(count) : "d"(port));		\
+		     : "+S"(addr), "+c"(count) : "d"(port) : "memory");	\
 }									\
 									\
 static inline void ins##bwl(int port, void *addr, unsigned long count)	\
 {									\
 	asm volatile("rep; ins" #bwl					\
-		     : "+D"(addr), "+c"(count) : "d"(port));		\
+		     : "+D"(addr), "+c"(count) : "d"(port) : "memory");	\
 }
 
 BUILDIO(b, b, char)
diff --git a/arch/x86/include/asm/irq_vectors.h b/arch/x86/include/asm/irq_vectors.h
index 6ca9fd6234e1..aaf8d28b5d00 100644
--- a/arch/x86/include/asm/irq_vectors.h
+++ b/arch/x86/include/asm/irq_vectors.h
@@ -83,7 +83,6 @@
  */
 #define X86_PLATFORM_IPI_VECTOR		0xf7
 
-#define POSTED_INTR_WAKEUP_VECTOR	0xf1
 /*
  * IRQ work vector:
  */
@@ -98,6 +97,8 @@
 /* Vector for KVM to deliver posted interrupt IPI */
 #ifdef CONFIG_HAVE_KVM
 #define POSTED_INTR_VECTOR		0xf2
+#define POSTED_INTR_WAKEUP_VECTOR	0xf1
+#define POSTED_INTR_NESTED_VECTOR	0xf0
 #endif
 
 /*
diff --git a/arch/x86/include/asm/kprobes.h b/arch/x86/include/asm/kprobes.h
index 34b984c60790..6cf65437b5e5 100644
--- a/arch/x86/include/asm/kprobes.h
+++ b/arch/x86/include/asm/kprobes.h
@@ -52,10 +52,10 @@ typedef u8 kprobe_opcode_t;
 #define flush_insn_slot(p)	do { } while (0)
 
 /* optinsn template addresses */
-extern __visible kprobe_opcode_t optprobe_template_entry;
-extern __visible kprobe_opcode_t optprobe_template_val;
-extern __visible kprobe_opcode_t optprobe_template_call;
-extern __visible kprobe_opcode_t optprobe_template_end;
+extern __visible kprobe_opcode_t optprobe_template_entry[];
+extern __visible kprobe_opcode_t optprobe_template_val[];
+extern __visible kprobe_opcode_t optprobe_template_call[];
+extern __visible kprobe_opcode_t optprobe_template_end[];
 #define MAX_OPTIMIZED_LENGTH (MAX_INSN_SIZE + RELATIVE_ADDR_SIZE)
 #define MAX_OPTINSN_SIZE 				\
 	(((unsigned long)&optprobe_template_end -	\
diff --git a/arch/x86/include/asm/kvm_emulate.h b/arch/x86/include/asm/kvm_emulate.h
index 722d0e568863..fde36f189836 100644
--- a/arch/x86/include/asm/kvm_emulate.h
+++ b/arch/x86/include/asm/kvm_emulate.h
@@ -23,6 +23,7 @@ struct x86_exception {
 	u16 error_code;
 	bool nested_page_fault;
 	u64 address; /* cr2 or nested page fault gpa */
+	u8 async_page_fault;
 };
 
 /*
diff --git a/arch/x86/include/asm/kvm_host.h b/arch/x86/include/asm/kvm_host.h
index 1588e9e3dc01..87ac4fba6d8e 100644
--- a/arch/x86/include/asm/kvm_host.h
+++ b/arch/x86/include/asm/kvm_host.h
@@ -462,10 +462,12 @@ struct kvm_vcpu_hv_synic {
 	DECLARE_BITMAP(auto_eoi_bitmap, 256);
 	DECLARE_BITMAP(vec_bitmap, 256);
 	bool active;
+	bool dont_zero_synic_pages;
 };
 
 /* Hyper-V per vcpu emulation context */
 struct kvm_vcpu_hv {
+	u32 vp_index;
 	u64 hv_vapic;
 	s64 runtime_offset;
 	struct kvm_vcpu_hv_synic synic;
@@ -549,6 +551,7 @@ struct kvm_vcpu_arch {
 		bool reinject;
 		u8 nr;
 		u32 error_code;
+		u8 nested_apf;
 	} exception;
 
 	struct kvm_queued_interrupt {
@@ -649,6 +652,9 @@ struct kvm_vcpu_arch {
 		u64 msr_val;
 		u32 id;
 		bool send_user_only;
+		u32 host_apf_reason;
+		unsigned long nested_apf_token;
+		bool delivery_as_pf_vmexit;
 	} apf;
 
 	/* OSVW MSRs (AMD only) */
@@ -803,6 +809,7 @@ struct kvm_arch {
 	int audit_point;
 	#endif
 
+	bool backwards_tsc_observed;
 	bool boot_vcpu_runs_old_kvmclock;
 	u32 bsp_vcpu_id;
 
@@ -952,9 +959,7 @@ struct kvm_x86_ops {
 				unsigned char *hypercall_addr);
 	void (*set_irq)(struct kvm_vcpu *vcpu);
 	void (*set_nmi)(struct kvm_vcpu *vcpu);
-	void (*queue_exception)(struct kvm_vcpu *vcpu, unsigned nr,
-				bool has_error_code, u32 error_code,
-				bool reinject);
+	void (*queue_exception)(struct kvm_vcpu *vcpu);
 	void (*cancel_injection)(struct kvm_vcpu *vcpu);
 	int (*interrupt_allowed)(struct kvm_vcpu *vcpu);
 	int (*nmi_allowed)(struct kvm_vcpu *vcpu);
diff --git a/arch/x86/include/asm/mmu_context.h b/arch/x86/include/asm/mmu_context.h
index ecfcb6643c9b..265c907d7d4c 100644
--- a/arch/x86/include/asm/mmu_context.h
+++ b/arch/x86/include/asm/mmu_context.h
@@ -293,7 +293,7 @@ static inline unsigned long __get_current_cr3_fast(void)
 	unsigned long cr3 = __pa(this_cpu_read(cpu_tlbstate.loaded_mm)->pgd);
 
 	/* For now, be very restrictive about when this can be called. */
-	VM_WARN_ON(in_nmi() || !in_atomic());
+	VM_WARN_ON(in_nmi() || preemptible());
 
 	VM_BUG_ON(cr3 != __read_cr3());
 	return cr3;
diff --git a/arch/x86/include/asm/paravirt_types.h b/arch/x86/include/asm/paravirt_types.h
index cb976bab6299..9ffc36bfe4cd 100644
--- a/arch/x86/include/asm/paravirt_types.h
+++ b/arch/x86/include/asm/paravirt_types.h
@@ -84,7 +84,7 @@ struct pv_init_ops {
 	 */
 	unsigned (*patch)(u8 type, u16 clobber, void *insnbuf,
 			  unsigned long addr, unsigned len);
-};
+} __no_randomize_layout;
 
 
 struct pv_lazy_ops {
@@ -92,12 +92,12 @@ struct pv_lazy_ops {
 	void (*enter)(void);
 	void (*leave)(void);
 	void (*flush)(void);
-};
+} __no_randomize_layout;
 
 struct pv_time_ops {
 	unsigned long long (*sched_clock)(void);
 	unsigned long long (*steal_clock)(int cpu);
-};
+} __no_randomize_layout;
 
 struct pv_cpu_ops {
 	/* hooks for various privileged instructions */
@@ -176,7 +176,7 @@ struct pv_cpu_ops {
 
 	void (*start_context_switch)(struct task_struct *prev);
 	void (*end_context_switch)(struct task_struct *next);
-};
+} __no_randomize_layout;
 
 struct pv_irq_ops {
 	/*
@@ -199,7 +199,7 @@ struct pv_irq_ops {
 #ifdef CONFIG_X86_64
 	void (*adjust_exception_frame)(void);
 #endif
-};
+} __no_randomize_layout;
 
 struct pv_mmu_ops {
 	unsigned long (*read_cr2)(void);
@@ -305,7 +305,7 @@ struct pv_mmu_ops {
 	   an mfn.  We can tell which is which from the index. */
 	void (*set_fixmap)(unsigned /* enum fixed_addresses */ idx,
 			   phys_addr_t phys, pgprot_t flags);
-};
+} __no_randomize_layout;
 
 struct arch_spinlock;
 #ifdef CONFIG_SMP
@@ -322,7 +322,7 @@ struct pv_lock_ops {
 	void (*kick)(int cpu);
 
 	struct paravirt_callee_save vcpu_is_preempted;
-};
+} __no_randomize_layout;
 
 /* This contains all the paravirt structures: we get a convenient
  * number for each function using the offset which we use to indicate
@@ -334,7 +334,7 @@ struct paravirt_patch_template {
 	struct pv_irq_ops pv_irq_ops;
 	struct pv_mmu_ops pv_mmu_ops;
 	struct pv_lock_ops pv_lock_ops;
-};
+} __no_randomize_layout;
 
 extern struct pv_info pv_info;
 extern struct pv_init_ops pv_init_ops;
diff --git a/arch/x86/include/asm/processor.h b/arch/x86/include/asm/processor.h
index 6a79547e8ee0..028245e1c42b 100644
--- a/arch/x86/include/asm/processor.h
+++ b/arch/x86/include/asm/processor.h
@@ -129,7 +129,7 @@ struct cpuinfo_x86 {
 	/* Index into per_cpu list: */
 	u16			cpu_index;
 	u32			microcode;
-};
+} __randomize_layout;
 
 struct cpuid_regs {
 	u32 eax, ebx, ecx, edx;
diff --git a/arch/x86/include/asm/stackprotector.h b/arch/x86/include/asm/stackprotector.h
index dcbd9bcce714..8abedf1d650e 100644
--- a/arch/x86/include/asm/stackprotector.h
+++ b/arch/x86/include/asm/stackprotector.h
@@ -74,6 +74,7 @@ static __always_inline void boot_init_stack_canary(void)
 	get_random_bytes(&canary, sizeof(canary));
 	tsc = rdtsc();
 	canary += tsc + (tsc << 32UL);
+	canary &= CANARY_MASK;
 
 	current->stack_canary = canary;
 #ifdef CONFIG_X86_64
diff --git a/arch/x86/include/asm/string_32.h b/arch/x86/include/asm/string_32.h
index 3d3e8353ee5c..e9ee84873de5 100644
--- a/arch/x86/include/asm/string_32.h
+++ b/arch/x86/include/asm/string_32.h
@@ -142,7 +142,9 @@ static __always_inline void *__constant_memcpy(void *to, const void *from,
 }
 
 #define __HAVE_ARCH_MEMCPY
+extern void *memcpy(void *, const void *, size_t);
 
+#ifndef CONFIG_FORTIFY_SOURCE
 #ifdef CONFIG_X86_USE_3DNOW
 
 #include <asm/mmx.h>
@@ -195,11 +197,15 @@ static inline void *__memcpy3d(void *to, const void *from, size_t len)
 #endif
 
 #endif
+#endif /* !CONFIG_FORTIFY_SOURCE */
 
 #define __HAVE_ARCH_MEMMOVE
 void *memmove(void *dest, const void *src, size_t n);
 
+extern int memcmp(const void *, const void *, size_t);
+#ifndef CONFIG_FORTIFY_SOURCE
 #define memcmp __builtin_memcmp
+#endif
 
 #define __HAVE_ARCH_MEMCHR
 extern void *memchr(const void *cs, int c, size_t count);
@@ -321,6 +327,8 @@ void *__constant_c_and_count_memset(void *s, unsigned long pattern,
 	 : __memset_generic((s), (c), (count)))
 
 #define __HAVE_ARCH_MEMSET
+extern void *memset(void *, int, size_t);
+#ifndef CONFIG_FORTIFY_SOURCE
 #if (__GNUC__ >= 4)
 #define memset(s, c, count) __builtin_memset(s, c, count)
 #else
@@ -330,6 +338,7 @@ void *__constant_c_and_count_memset(void *s, unsigned long pattern,
 				 (count))				\
 	 : __memset((s), (c), (count)))
 #endif
+#endif /* !CONFIG_FORTIFY_SOURCE */
 
 /*
  * find the first occurrence of byte 'c', or 1 past the area if none
diff --git a/arch/x86/include/asm/string_64.h b/arch/x86/include/asm/string_64.h
index 1f22bc277c45..2a8c822de1fc 100644
--- a/arch/x86/include/asm/string_64.h
+++ b/arch/x86/include/asm/string_64.h
@@ -31,6 +31,7 @@ static __always_inline void *__inline_memcpy(void *to, const void *from, size_t
 extern void *memcpy(void *to, const void *from, size_t len);
 extern void *__memcpy(void *to, const void *from, size_t len);
 
+#ifndef CONFIG_FORTIFY_SOURCE
 #ifndef CONFIG_KMEMCHECK
 #if (__GNUC__ == 4 && __GNUC_MINOR__ < 3) || __GNUC__ < 4
 #define memcpy(dst, src, len)					\
@@ -51,6 +52,7 @@ extern void *__memcpy(void *to, const void *from, size_t len);
  */
 #define memcpy(dst, src, len) __inline_memcpy((dst), (src), (len))
 #endif
+#endif /* !CONFIG_FORTIFY_SOURCE */
 
 #define __HAVE_ARCH_MEMSET
 void *memset(void *s, int c, size_t n);
@@ -77,6 +79,11 @@ int strcmp(const char *cs, const char *ct);
 #define memcpy(dst, src, len) __memcpy(dst, src, len)
 #define memmove(dst, src, len) __memmove(dst, src, len)
 #define memset(s, c, n) __memset(s, c, n)
+
+#ifndef __NO_FORTIFY
+#define __NO_FORTIFY /* FORTIFY_SOURCE uses __builtin_memcpy, etc. */
+#endif
+
 #endif
 
 #define __HAVE_ARCH_MEMCPY_MCSAFE 1
diff --git a/arch/x86/include/asm/svm.h b/arch/x86/include/asm/svm.h
index 14824fc78f7e..58fffe79e417 100644
--- a/arch/x86/include/asm/svm.h
+++ b/arch/x86/include/asm/svm.h
@@ -83,7 +83,7 @@ struct __attribute__ ((__packed__)) vmcb_control_area {
 	u32 event_inj;
 	u32 event_inj_err;
 	u64 nested_cr3;
-	u64 lbr_ctl;
+	u64 virt_ext;
 	u32 clean;
 	u32 reserved_5;
 	u64 next_rip;
@@ -119,6 +119,9 @@ struct __attribute__ ((__packed__)) vmcb_control_area {
 #define AVIC_ENABLE_SHIFT 31
 #define AVIC_ENABLE_MASK (1 << AVIC_ENABLE_SHIFT)
 
+#define LBR_CTL_ENABLE_MASK BIT_ULL(0)
+#define VIRTUAL_VMLOAD_VMSAVE_ENABLE_MASK BIT_ULL(1)
+
 #define SVM_INTERRUPT_SHADOW_MASK 1
 
 #define SVM_IOIO_STR_SHIFT 2
diff --git a/arch/x86/include/asm/uaccess.h b/arch/x86/include/asm/uaccess.h
index 476ea27f490b..30269dafec47 100644
--- a/arch/x86/include/asm/uaccess.h
+++ b/arch/x86/include/asm/uaccess.h
@@ -535,9 +535,6 @@ struct __large_struct { unsigned long buf[100]; };
 #define __put_user(x, ptr)						\
 	__put_user_nocheck((__typeof__(*(ptr)))(x), (ptr), sizeof(*(ptr)))
 
-#define __get_user_unaligned __get_user
-#define __put_user_unaligned __put_user
-
 /*
  * {get|put}_user_try and catch
  *
diff --git a/arch/x86/include/uapi/asm/kvm_para.h b/arch/x86/include/uapi/asm/kvm_para.h
index cff0bb6556f8..a965e5b0d328 100644
--- a/arch/x86/include/uapi/asm/kvm_para.h
+++ b/arch/x86/include/uapi/asm/kvm_para.h
@@ -67,6 +67,7 @@ struct kvm_clock_pairing {
 
 #define KVM_ASYNC_PF_ENABLED			(1 << 0)
 #define KVM_ASYNC_PF_SEND_ALWAYS		(1 << 1)
+#define KVM_ASYNC_PF_DELIVERY_AS_PF_VMEXIT	(1 << 2)
 
 /* Operations for KVM_HC_MMU_OP */
 #define KVM_MMU_OP_WRITE_PTE            1
diff --git a/arch/x86/kernel/acpi/boot.c b/arch/x86/kernel/acpi/boot.c
index 6bb680671088..7491e73d9253 100644
--- a/arch/x86/kernel/acpi/boot.c
+++ b/arch/x86/kernel/acpi/boot.c
@@ -347,6 +347,14 @@ static void __init mp_override_legacy_irq(u8 bus_irq, u8 polarity, u8 trigger,
 	struct mpc_intsrc mp_irq;
 
 	/*
+	 * Check bus_irq boundary.
+	 */
+	if (bus_irq >= NR_IRQS_LEGACY) {
+		pr_warn("Invalid bus_irq %u for legacy override\n", bus_irq);
+		return;
+	}
+
+	/*
 	 * Convert 'gsi' to 'ioapic.pin'.
 	 */
 	ioapic = mp_find_ioapic(gsi);
diff --git a/arch/x86/kernel/apic/hw_nmi.c b/arch/x86/kernel/apic/hw_nmi.c
index c73c9fb281e1..d6f387780849 100644
--- a/arch/x86/kernel/apic/hw_nmi.c
+++ b/arch/x86/kernel/apic/hw_nmi.c
@@ -19,7 +19,7 @@
 #include <linux/init.h>
 #include <linux/delay.h>
 
-#ifdef CONFIG_HARDLOCKUP_DETECTOR
+#ifdef CONFIG_HARDLOCKUP_DETECTOR_PERF
 u64 hw_nmi_get_sample_period(int watchdog_thresh)
 {
 	return (u64)(cpu_khz) * 1000 * watchdog_thresh;
diff --git a/arch/x86/kernel/apic/io_apic.c b/arch/x86/kernel/apic/io_apic.c
index b4f5f73febdb..237e9c2341c7 100644
--- a/arch/x86/kernel/apic/io_apic.c
+++ b/arch/x86/kernel/apic/io_apic.c
@@ -2093,7 +2093,7 @@ static inline void __init check_timer(void)
 			int idx;
 			idx = find_irq_entry(apic1, pin1, mp_INT);
 			if (idx != -1 && irq_trigger(idx))
-				unmask_ioapic_irq(irq_get_chip_data(0));
+				unmask_ioapic_irq(irq_get_irq_data(0));
 		}
 		irq_domain_deactivate_irq(irq_data);
 		irq_domain_activate_irq(irq_data);
diff --git a/arch/x86/kernel/cpu/amd.c b/arch/x86/kernel/cpu/amd.c
index bb5abe8f5fd4..3b9e220621f8 100644
--- a/arch/x86/kernel/cpu/amd.c
+++ b/arch/x86/kernel/cpu/amd.c
@@ -134,6 +134,7 @@ static void init_amd_k6(struct cpuinfo_x86 *c)
 
 		n = K6_BUG_LOOP;
 		f_vide = vide;
+		OPTIMIZER_HIDE_VAR(f_vide);
 		d = rdtsc();
 		while (n--)
 			f_vide();
diff --git a/arch/x86/kernel/cpu/aperfmperf.c b/arch/x86/kernel/cpu/aperfmperf.c
index d869c8671e36..0ee83321a313 100644
--- a/arch/x86/kernel/cpu/aperfmperf.c
+++ b/arch/x86/kernel/cpu/aperfmperf.c
@@ -8,20 +8,25 @@
  * This file is licensed under GPLv2.
  */
 
-#include <linux/jiffies.h>
+#include <linux/delay.h>
+#include <linux/ktime.h>
 #include <linux/math64.h>
 #include <linux/percpu.h>
 #include <linux/smp.h>
 
 struct aperfmperf_sample {
 	unsigned int	khz;
-	unsigned long	jiffies;
+	ktime_t	time;
 	u64	aperf;
 	u64	mperf;
 };
 
 static DEFINE_PER_CPU(struct aperfmperf_sample, samples);
 
+#define APERFMPERF_CACHE_THRESHOLD_MS	10
+#define APERFMPERF_REFRESH_DELAY_MS	20
+#define APERFMPERF_STALE_THRESHOLD_MS	1000
+
 /*
  * aperfmperf_snapshot_khz()
  * On the current CPU, snapshot APERF, MPERF, and jiffies
@@ -33,13 +38,18 @@ static void aperfmperf_snapshot_khz(void *dummy)
 	u64 aperf, aperf_delta;
 	u64 mperf, mperf_delta;
 	struct aperfmperf_sample *s = this_cpu_ptr(&samples);
+	ktime_t now = ktime_get();
+	s64 time_delta = ktime_ms_delta(now, s->time);
+	unsigned long flags;
 
-	/* Don't bother re-computing within 10 ms */
-	if (time_before(jiffies, s->jiffies + HZ/100))
+	/* Don't bother re-computing within the cache threshold time. */
+	if (time_delta < APERFMPERF_CACHE_THRESHOLD_MS)
 		return;
 
+	local_irq_save(flags);
 	rdmsrl(MSR_IA32_APERF, aperf);
 	rdmsrl(MSR_IA32_MPERF, mperf);
+	local_irq_restore(flags);
 
 	aperf_delta = aperf - s->aperf;
 	mperf_delta = mperf - s->mperf;
@@ -51,22 +61,21 @@ static void aperfmperf_snapshot_khz(void *dummy)
 	if (mperf_delta == 0)
 		return;
 
-	/*
-	 * if (cpu_khz * aperf_delta) fits into ULLONG_MAX, then
-	 *	khz = (cpu_khz * aperf_delta) / mperf_delta
-	 */
-	if (div64_u64(ULLONG_MAX, cpu_khz) > aperf_delta)
-		s->khz = div64_u64((cpu_khz * aperf_delta), mperf_delta);
-	else	/* khz = aperf_delta / (mperf_delta / cpu_khz) */
-		s->khz = div64_u64(aperf_delta,
-			div64_u64(mperf_delta, cpu_khz));
-	s->jiffies = jiffies;
+	s->time = now;
 	s->aperf = aperf;
 	s->mperf = mperf;
+
+	/* If the previous iteration was too long ago, discard it. */
+	if (time_delta > APERFMPERF_STALE_THRESHOLD_MS)
+		s->khz = 0;
+	else
+		s->khz = div64_u64((cpu_khz * aperf_delta), mperf_delta);
 }
 
 unsigned int arch_freq_get_on_cpu(int cpu)
 {
+	unsigned int khz;
+
 	if (!cpu_khz)
 		return 0;
 
@@ -74,6 +83,12 @@ unsigned int arch_freq_get_on_cpu(int cpu)
 		return 0;
 
 	smp_call_function_single(cpu, aperfmperf_snapshot_khz, NULL, 1);
+	khz = per_cpu(samples.khz, cpu);
+	if (khz)
+		return khz;
+
+	msleep(APERFMPERF_REFRESH_DELAY_MS);
+	smp_call_function_single(cpu, aperfmperf_snapshot_khz, NULL, 1);
 
 	return per_cpu(samples.khz, cpu);
 }
diff --git a/arch/x86/kernel/cpu/mcheck/therm_throt.c b/arch/x86/kernel/cpu/mcheck/therm_throt.c
index d7cc190ae457..f7370abd33c6 100644
--- a/arch/x86/kernel/cpu/mcheck/therm_throt.c
+++ b/arch/x86/kernel/cpu/mcheck/therm_throt.c
@@ -122,7 +122,7 @@ static struct attribute *thermal_throttle_attrs[] = {
 	NULL
 };
 
-static struct attribute_group thermal_attr_group = {
+static const struct attribute_group thermal_attr_group = {
 	.attrs	= thermal_throttle_attrs,
 	.name	= "thermal_throttle"
 };
diff --git a/arch/x86/kernel/cpu/microcode/core.c b/arch/x86/kernel/cpu/microcode/core.c
index 9cb98ee103db..86e8f0b2537b 100644
--- a/arch/x86/kernel/cpu/microcode/core.c
+++ b/arch/x86/kernel/cpu/microcode/core.c
@@ -561,7 +561,7 @@ static struct attribute *mc_default_attrs[] = {
 	NULL
 };
 
-static struct attribute_group mc_attr_group = {
+static const struct attribute_group mc_attr_group = {
 	.attrs			= mc_default_attrs,
 	.name			= "microcode",
 };
@@ -707,7 +707,7 @@ static struct attribute *cpu_root_microcode_attrs[] = {
 	NULL
 };
 
-static struct attribute_group cpu_root_microcode_group = {
+static const struct attribute_group cpu_root_microcode_group = {
 	.name  = "microcode",
 	.attrs = cpu_root_microcode_attrs,
 };
diff --git a/arch/x86/kernel/cpu/mtrr/main.c b/arch/x86/kernel/cpu/mtrr/main.c
index c5bb63be4ba1..40d5a8a75212 100644
--- a/arch/x86/kernel/cpu/mtrr/main.c
+++ b/arch/x86/kernel/cpu/mtrr/main.c
@@ -237,6 +237,18 @@ set_mtrr(unsigned int reg, unsigned long base, unsigned long size, mtrr_type typ
 	stop_machine(mtrr_rendezvous_handler, &data, cpu_online_mask);
 }
 
+static void set_mtrr_cpuslocked(unsigned int reg, unsigned long base,
+				unsigned long size, mtrr_type type)
+{
+	struct set_mtrr_data data = { .smp_reg = reg,
+				      .smp_base = base,
+				      .smp_size = size,
+				      .smp_type = type
+				    };
+
+	stop_machine_cpuslocked(mtrr_rendezvous_handler, &data, cpu_online_mask);
+}
+
 static void set_mtrr_from_inactive_cpu(unsigned int reg, unsigned long base,
 				      unsigned long size, mtrr_type type)
 {
@@ -370,7 +382,7 @@ int mtrr_add_page(unsigned long base, unsigned long size,
 	/* Search for an empty MTRR */
 	i = mtrr_if->get_free_region(base, size, replace);
 	if (i >= 0) {
-		set_mtrr(i, base, size, type);
+		set_mtrr_cpuslocked(i, base, size, type);
 		if (likely(replace < 0)) {
 			mtrr_usage_table[i] = 1;
 		} else {
@@ -378,7 +390,7 @@ int mtrr_add_page(unsigned long base, unsigned long size,
 			if (increment)
 				mtrr_usage_table[i]++;
 			if (unlikely(replace != i)) {
-				set_mtrr(replace, 0, 0, 0);
+				set_mtrr_cpuslocked(replace, 0, 0, 0);
 				mtrr_usage_table[replace] = 0;
 			}
 		}
@@ -506,7 +518,7 @@ int mtrr_del_page(int reg, unsigned long base, unsigned long size)
 		goto out;
 	}
 	if (--mtrr_usage_table[reg] < 1)
-		set_mtrr(reg, 0, 0, 0);
+		set_mtrr_cpuslocked(reg, 0, 0, 0);
 	error = reg;
  out:
 	mutex_unlock(&mtrr_mutex);
diff --git a/arch/x86/kernel/crash.c b/arch/x86/kernel/crash.c
index 22217ece26c8..44404e2307bb 100644
--- a/arch/x86/kernel/crash.c
+++ b/arch/x86/kernel/crash.c
@@ -457,7 +457,7 @@ static int prepare_elf64_headers(struct crash_elf_data *ced,
 	bufp += sizeof(Elf64_Phdr);
 	phdr->p_type = PT_NOTE;
 	phdr->p_offset = phdr->p_paddr = paddr_vmcoreinfo_note();
-	phdr->p_filesz = phdr->p_memsz = sizeof(vmcoreinfo_note);
+	phdr->p_filesz = phdr->p_memsz = VMCOREINFO_NOTE_SIZE;
 	(ehdr->e_phnum)++;
 
 #ifdef CONFIG_X86_64
diff --git a/arch/x86/kernel/devicetree.c b/arch/x86/kernel/devicetree.c
index 3fe45f84ced4..cbf1f6ba39a8 100644
--- a/arch/x86/kernel/devicetree.c
+++ b/arch/x86/kernel/devicetree.c
@@ -235,8 +235,7 @@ static void __init dtb_add_ioapic(struct device_node *dn)
 
 	ret = of_address_to_resource(dn, 0, &r);
 	if (ret) {
-		printk(KERN_ERR "Can't obtain address from node %s.\n",
-				dn->full_name);
+		printk(KERN_ERR "Can't obtain address from device node %pOF.\n", dn);
 		return;
 	}
 	mp_register_ioapic(++ioapic_id, r.start, gsi_top, &cfg);
diff --git a/arch/x86/kernel/head64.c b/arch/x86/kernel/head64.c
index 46c3c73e7f43..9ba79543d9ee 100644
--- a/arch/x86/kernel/head64.c
+++ b/arch/x86/kernel/head64.c
@@ -53,6 +53,7 @@ void __head __startup_64(unsigned long physaddr)
 	pudval_t *pud;
 	pmdval_t *pmd, pmd_entry;
 	int i;
+	unsigned int *next_pgt_ptr;
 
 	/* Is the address too large? */
 	if (physaddr >> MAX_PHYSMEM_BITS)
@@ -91,9 +92,9 @@ void __head __startup_64(unsigned long physaddr)
 	 * creates a bunch of nonsense entries but that is fine --
 	 * it avoids problems around wraparound.
 	 */
-
-	pud = fixup_pointer(early_dynamic_pgts[next_early_pgt++], physaddr);
-	pmd = fixup_pointer(early_dynamic_pgts[next_early_pgt++], physaddr);
+	next_pgt_ptr = fixup_pointer(&next_early_pgt, physaddr);
+	pud = fixup_pointer(early_dynamic_pgts[(*next_pgt_ptr)++], physaddr);
+	pmd = fixup_pointer(early_dynamic_pgts[(*next_pgt_ptr)++], physaddr);
 
 	if (IS_ENABLED(CONFIG_X86_5LEVEL)) {
 		p4d = fixup_pointer(early_dynamic_pgts[next_early_pgt++], physaddr);
diff --git a/arch/x86/kernel/hpet.c b/arch/x86/kernel/hpet.c
index 16f82a3aaec7..8ce4212e2b8d 100644
--- a/arch/x86/kernel/hpet.c
+++ b/arch/x86/kernel/hpet.c
@@ -345,21 +345,10 @@ static int hpet_shutdown(struct clock_event_device *evt, int timer)
 	return 0;
 }
 
-static int hpet_resume(struct clock_event_device *evt, int timer)
-{
-	if (!timer) {
-		hpet_enable_legacy_int();
-	} else {
-		struct hpet_dev *hdev = EVT_TO_HPET_DEV(evt);
-
-		irq_domain_deactivate_irq(irq_get_irq_data(hdev->irq));
-		irq_domain_activate_irq(irq_get_irq_data(hdev->irq));
-		disable_hardirq(hdev->irq);
-		irq_set_affinity(hdev->irq, cpumask_of(hdev->cpu));
-		enable_irq(hdev->irq);
-	}
+static int hpet_resume(struct clock_event_device *evt)
+{
+	hpet_enable_legacy_int();
 	hpet_print_config();
-
 	return 0;
 }
 
@@ -417,7 +406,7 @@ static int hpet_legacy_set_periodic(struct clock_event_device *evt)
 
 static int hpet_legacy_resume(struct clock_event_device *evt)
 {
-	return hpet_resume(evt, 0);
+	return hpet_resume(evt);
 }
 
 static int hpet_legacy_next_event(unsigned long delta,
@@ -510,8 +499,14 @@ static int hpet_msi_set_periodic(struct clock_event_device *evt)
 static int hpet_msi_resume(struct clock_event_device *evt)
 {
 	struct hpet_dev *hdev = EVT_TO_HPET_DEV(evt);
+	struct irq_data *data = irq_get_irq_data(hdev->irq);
+	struct msi_msg msg;
 
-	return hpet_resume(evt, hdev->num);
+	/* Restore the MSI msg and unmask the interrupt */
+	irq_chip_compose_msi_msg(data, &msg);
+	hpet_msi_write(hdev, &msg);
+	hpet_msi_unmask(data);
+	return 0;
 }
 
 static int hpet_msi_next_event(unsigned long delta,
diff --git a/arch/x86/kernel/irq.c b/arch/x86/kernel/irq.c
index 4aa03c5a14c9..4ed0aba8dbc8 100644
--- a/arch/x86/kernel/irq.c
+++ b/arch/x86/kernel/irq.c
@@ -155,6 +155,12 @@ int arch_show_interrupts(struct seq_file *p, int prec)
 		seq_printf(p, "%10u ", irq_stats(j)->kvm_posted_intr_ipis);
 	seq_puts(p, "  Posted-interrupt notification event\n");
 
+	seq_printf(p, "%*s: ", prec, "NPI");
+	for_each_online_cpu(j)
+		seq_printf(p, "%10u ",
+			   irq_stats(j)->kvm_posted_intr_nested_ipis);
+	seq_puts(p, "  Nested posted-interrupt event\n");
+
 	seq_printf(p, "%*s: ", prec, "PIW");
 	for_each_online_cpu(j)
 		seq_printf(p, "%10u ",
@@ -313,6 +319,19 @@ __visible void smp_kvm_posted_intr_wakeup_ipi(struct pt_regs *regs)
 	exiting_irq();
 	set_irq_regs(old_regs);
 }
+
+/*
+ * Handler for POSTED_INTERRUPT_NESTED_VECTOR.
+ */
+__visible void smp_kvm_posted_intr_nested_ipi(struct pt_regs *regs)
+{
+	struct pt_regs *old_regs = set_irq_regs(regs);
+
+	entering_ack_irq();
+	inc_irq_stat(kvm_posted_intr_nested_ipis);
+	exiting_irq();
+	set_irq_regs(old_regs);
+}
 #endif
 
 __visible void __irq_entry smp_trace_x86_platform_ipi(struct pt_regs *regs)
diff --git a/arch/x86/kernel/irqinit.c b/arch/x86/kernel/irqinit.c
index 7468c6987547..c7fd18526c3e 100644
--- a/arch/x86/kernel/irqinit.c
+++ b/arch/x86/kernel/irqinit.c
@@ -150,6 +150,8 @@ static void __init apic_intr_init(void)
 	alloc_intr_gate(POSTED_INTR_VECTOR, kvm_posted_intr_ipi);
 	/* IPI for KVM to deliver interrupt to wake up tasks */
 	alloc_intr_gate(POSTED_INTR_WAKEUP_VECTOR, kvm_posted_intr_wakeup_ipi);
+	/* IPI for KVM to deliver nested posted interrupt */
+	alloc_intr_gate(POSTED_INTR_NESTED_VECTOR, kvm_posted_intr_nested_ipi);
 #endif
 
 	/* IPI vectors for APIC spurious and error interrupts */
diff --git a/arch/x86/kernel/kprobes/core.c b/arch/x86/kernel/kprobes/core.c
index 6b877807598b..f0153714ddac 100644
--- a/arch/x86/kernel/kprobes/core.c
+++ b/arch/x86/kernel/kprobes/core.c
@@ -457,6 +457,8 @@ static int arch_copy_kprobe(struct kprobe *p)
 
 int arch_prepare_kprobe(struct kprobe *p)
 {
+	int ret;
+
 	if (alternatives_text_reserved(p->addr, p->addr))
 		return -EINVAL;
 
@@ -467,7 +469,13 @@ int arch_prepare_kprobe(struct kprobe *p)
 	if (!p->ainsn.insn)
 		return -ENOMEM;
 
-	return arch_copy_kprobe(p);
+	ret = arch_copy_kprobe(p);
+	if (ret) {
+		free_insn_slot(p->ainsn.insn, 0);
+		p->ainsn.insn = NULL;
+	}
+
+	return ret;
 }
 
 void arch_arm_kprobe(struct kprobe *p)
diff --git a/arch/x86/kernel/ksysfs.c b/arch/x86/kernel/ksysfs.c
index 4afc67f5facc..06e1ff5562c0 100644
--- a/arch/x86/kernel/ksysfs.c
+++ b/arch/x86/kernel/ksysfs.c
@@ -55,7 +55,7 @@ static struct bin_attribute *boot_params_data_attrs[] = {
 	NULL,
 };
 
-static struct attribute_group boot_params_attr_group = {
+static const struct attribute_group boot_params_attr_group = {
 	.attrs = boot_params_version_attrs,
 	.bin_attrs = boot_params_data_attrs,
 };
@@ -202,7 +202,7 @@ static struct bin_attribute *setup_data_data_attrs[] = {
 	NULL,
 };
 
-static struct attribute_group setup_data_attr_group = {
+static const struct attribute_group setup_data_attr_group = {
 	.attrs = setup_data_type_attrs,
 	.bin_attrs = setup_data_data_attrs,
 };
diff --git a/arch/x86/kernel/kvm.c b/arch/x86/kernel/kvm.c
index 43e10d6fdbed..d04e30e3c0ff 100644
--- a/arch/x86/kernel/kvm.c
+++ b/arch/x86/kernel/kvm.c
@@ -151,6 +151,8 @@ void kvm_async_pf_task_wait(u32 token)
 		if (hlist_unhashed(&n.link))
 			break;
 
+		rcu_irq_exit();
+
 		if (!n.halted) {
 			local_irq_enable();
 			schedule();
@@ -159,11 +161,11 @@ void kvm_async_pf_task_wait(u32 token)
 			/*
 			 * We cannot reschedule. So halt.
 			 */
-			rcu_irq_exit();
 			native_safe_halt();
 			local_irq_disable();
-			rcu_irq_enter();
 		}
+
+		rcu_irq_enter();
 	}
 	if (!n.halted)
 		finish_swait(&n.wq, &wait);
@@ -330,7 +332,12 @@ static void kvm_guest_cpu_init(void)
 #ifdef CONFIG_PREEMPT
 		pa |= KVM_ASYNC_PF_SEND_ALWAYS;
 #endif
-		wrmsrl(MSR_KVM_ASYNC_PF_EN, pa | KVM_ASYNC_PF_ENABLED);
+		pa |= KVM_ASYNC_PF_ENABLED;
+
+		/* Async page fault support for L1 hypervisor is optional */
+		if (wrmsr_safe(MSR_KVM_ASYNC_PF_EN,
+			(pa | KVM_ASYNC_PF_DELIVERY_AS_PF_VMEXIT) & 0xffffffff, pa >> 32) < 0)
+			wrmsrl(MSR_KVM_ASYNC_PF_EN, pa);
 		__this_cpu_write(apf_reason.enabled, 1);
 		printk(KERN_INFO"KVM setup async PF for cpu %d\n",
 		       smp_processor_id());
diff --git a/arch/x86/kernel/reboot.c b/arch/x86/kernel/reboot.c
index 67393fc88353..a56bf6051f4e 100644
--- a/arch/x86/kernel/reboot.c
+++ b/arch/x86/kernel/reboot.c
@@ -471,12 +471,12 @@ static int __init reboot_init(void)
 
 	/*
 	 * The DMI quirks table takes precedence. If no quirks entry
-	 * matches and the ACPI Hardware Reduced bit is set, force EFI
-	 * reboot.
+	 * matches and the ACPI Hardware Reduced bit is set and EFI
+	 * runtime services are enabled, force EFI reboot.
 	 */
 	rv = dmi_check_system(reboot_dmi_table);
 
-	if (!rv && efi_reboot_required())
+	if (!rv && efi_reboot_required() && !efi_runtime_disabled())
 		reboot_type = BOOT_EFI;
 
 	return 0;
diff --git a/arch/x86/kernel/smpboot.c b/arch/x86/kernel/smpboot.c
index b474c8de7fba..54b9e89d4d6b 100644
--- a/arch/x86/kernel/smpboot.c
+++ b/arch/x86/kernel/smpboot.c
@@ -971,7 +971,8 @@ void common_cpu_up(unsigned int cpu, struct task_struct *idle)
  * Returns zero if CPU booted OK, else error code from
  * ->wakeup_secondary_cpu.
  */
-static int do_boot_cpu(int apicid, int cpu, struct task_struct *idle)
+static int do_boot_cpu(int apicid, int cpu, struct task_struct *idle,
+		       int *cpu0_nmi_registered)
 {
 	volatile u32 *trampoline_status =
 		(volatile u32 *) __va(real_mode_header->trampoline_status);
@@ -979,7 +980,6 @@ static int do_boot_cpu(int apicid, int cpu, struct task_struct *idle)
 	unsigned long start_ip = real_mode_header->trampoline_start;
 
 	unsigned long boot_error = 0;
-	int cpu0_nmi_registered = 0;
 	unsigned long timeout;
 
 	idle->thread.sp = (unsigned long)task_pt_regs(idle);
@@ -1035,7 +1035,7 @@ static int do_boot_cpu(int apicid, int cpu, struct task_struct *idle)
 		boot_error = apic->wakeup_secondary_cpu(apicid, start_ip);
 	else
 		boot_error = wakeup_cpu_via_init_nmi(cpu, start_ip, apicid,
-						     &cpu0_nmi_registered);
+						     cpu0_nmi_registered);
 
 	if (!boot_error) {
 		/*
@@ -1080,12 +1080,6 @@ static int do_boot_cpu(int apicid, int cpu, struct task_struct *idle)
 		 */
 		smpboot_restore_warm_reset_vector();
 	}
-	/*
-	 * Clean up the nmi handler. Do this after the callin and callout sync
-	 * to avoid impact of possible long unregister time.
-	 */
-	if (cpu0_nmi_registered)
-		unregister_nmi_handler(NMI_LOCAL, "wake_cpu0");
 
 	return boot_error;
 }
@@ -1093,8 +1087,9 @@ static int do_boot_cpu(int apicid, int cpu, struct task_struct *idle)
 int native_cpu_up(unsigned int cpu, struct task_struct *tidle)
 {
 	int apicid = apic->cpu_present_to_apicid(cpu);
+	int cpu0_nmi_registered = 0;
 	unsigned long flags;
-	int err;
+	int err, ret = 0;
 
 	WARN_ON(irqs_disabled());
 
@@ -1131,10 +1126,11 @@ int native_cpu_up(unsigned int cpu, struct task_struct *tidle)
 
 	common_cpu_up(cpu, tidle);
 
-	err = do_boot_cpu(apicid, cpu, tidle);
+	err = do_boot_cpu(apicid, cpu, tidle, &cpu0_nmi_registered);
 	if (err) {
 		pr_err("do_boot_cpu failed(%d) to wakeup CPU#%u\n", err, cpu);
-		return -EIO;
+		ret = -EIO;
+		goto unreg_nmi;
 	}
 
 	/*
@@ -1150,7 +1146,15 @@ int native_cpu_up(unsigned int cpu, struct task_struct *tidle)
 		touch_nmi_watchdog();
 	}
 
-	return 0;
+unreg_nmi:
+	/*
+	 * Clean up the nmi handler. Do this after the callin and callout sync
+	 * to avoid impact of possible long unregister time.
+	 */
+	if (cpu0_nmi_registered)
+		unregister_nmi_handler(NMI_LOCAL, "wake_cpu0");
+
+	return ret;
 }
 
 /**
diff --git a/arch/x86/kvm/Kconfig b/arch/x86/kvm/Kconfig
index 760433b2574a..2688c7dc5323 100644
--- a/arch/x86/kvm/Kconfig
+++ b/arch/x86/kvm/Kconfig
@@ -22,7 +22,7 @@ config KVM
 	depends on HAVE_KVM
 	depends on HIGH_RES_TIMERS
 	# for TASKSTATS/TASK_DELAY_ACCT:
-	depends on NET
+	depends on NET && MULTIUSER
 	select PREEMPT_NOTIFIERS
 	select MMU_NOTIFIER
 	select ANON_INODES
diff --git a/arch/x86/kvm/hyperv.c b/arch/x86/kvm/hyperv.c
index ebae57ac5902..337b6d2730fa 100644
--- a/arch/x86/kvm/hyperv.c
+++ b/arch/x86/kvm/hyperv.c
@@ -106,14 +106,27 @@ static int synic_set_sint(struct kvm_vcpu_hv_synic *synic, int sint,
 	return 0;
 }
 
-static struct kvm_vcpu_hv_synic *synic_get(struct kvm *kvm, u32 vcpu_id)
+static struct kvm_vcpu *get_vcpu_by_vpidx(struct kvm *kvm, u32 vpidx)
+{
+	struct kvm_vcpu *vcpu = NULL;
+	int i;
+
+	if (vpidx < KVM_MAX_VCPUS)
+		vcpu = kvm_get_vcpu(kvm, vpidx);
+	if (vcpu && vcpu_to_hv_vcpu(vcpu)->vp_index == vpidx)
+		return vcpu;
+	kvm_for_each_vcpu(i, vcpu, kvm)
+		if (vcpu_to_hv_vcpu(vcpu)->vp_index == vpidx)
+			return vcpu;
+	return NULL;
+}
+
+static struct kvm_vcpu_hv_synic *synic_get(struct kvm *kvm, u32 vpidx)
 {
 	struct kvm_vcpu *vcpu;
 	struct kvm_vcpu_hv_synic *synic;
 
-	if (vcpu_id >= atomic_read(&kvm->online_vcpus))
-		return NULL;
-	vcpu = kvm_get_vcpu(kvm, vcpu_id);
+	vcpu = get_vcpu_by_vpidx(kvm, vpidx);
 	if (!vcpu)
 		return NULL;
 	synic = vcpu_to_synic(vcpu);
@@ -221,7 +234,8 @@ static int synic_set_msr(struct kvm_vcpu_hv_synic *synic,
 		synic->version = data;
 		break;
 	case HV_X64_MSR_SIEFP:
-		if (data & HV_SYNIC_SIEFP_ENABLE)
+		if ((data & HV_SYNIC_SIEFP_ENABLE) && !host &&
+		    !synic->dont_zero_synic_pages)
 			if (kvm_clear_guest(vcpu->kvm,
 					    data & PAGE_MASK, PAGE_SIZE)) {
 				ret = 1;
@@ -232,7 +246,8 @@ static int synic_set_msr(struct kvm_vcpu_hv_synic *synic,
 			synic_exit(synic, msr);
 		break;
 	case HV_X64_MSR_SIMP:
-		if (data & HV_SYNIC_SIMP_ENABLE)
+		if ((data & HV_SYNIC_SIMP_ENABLE) && !host &&
+		    !synic->dont_zero_synic_pages)
 			if (kvm_clear_guest(vcpu->kvm,
 					    data & PAGE_MASK, PAGE_SIZE)) {
 				ret = 1;
@@ -318,11 +333,11 @@ static int synic_set_irq(struct kvm_vcpu_hv_synic *synic, u32 sint)
 	return ret;
 }
 
-int kvm_hv_synic_set_irq(struct kvm *kvm, u32 vcpu_id, u32 sint)
+int kvm_hv_synic_set_irq(struct kvm *kvm, u32 vpidx, u32 sint)
 {
 	struct kvm_vcpu_hv_synic *synic;
 
-	synic = synic_get(kvm, vcpu_id);
+	synic = synic_get(kvm, vpidx);
 	if (!synic)
 		return -EINVAL;
 
@@ -341,11 +356,11 @@ void kvm_hv_synic_send_eoi(struct kvm_vcpu *vcpu, int vector)
 			kvm_hv_notify_acked_sint(vcpu, i);
 }
 
-static int kvm_hv_set_sint_gsi(struct kvm *kvm, u32 vcpu_id, u32 sint, int gsi)
+static int kvm_hv_set_sint_gsi(struct kvm *kvm, u32 vpidx, u32 sint, int gsi)
 {
 	struct kvm_vcpu_hv_synic *synic;
 
-	synic = synic_get(kvm, vcpu_id);
+	synic = synic_get(kvm, vpidx);
 	if (!synic)
 		return -EINVAL;
 
@@ -634,9 +649,10 @@ void kvm_hv_process_stimers(struct kvm_vcpu *vcpu)
 				}
 
 				if ((stimer->config & HV_STIMER_ENABLE) &&
-				    stimer->count)
-					stimer_start(stimer);
-				else
+				    stimer->count) {
+					if (!stimer->msg_pending)
+						stimer_start(stimer);
+				} else
 					stimer_cleanup(stimer);
 			}
 		}
@@ -687,14 +703,24 @@ void kvm_hv_vcpu_init(struct kvm_vcpu *vcpu)
 		stimer_init(&hv_vcpu->stimer[i], i);
 }
 
-int kvm_hv_activate_synic(struct kvm_vcpu *vcpu)
+void kvm_hv_vcpu_postcreate(struct kvm_vcpu *vcpu)
+{
+	struct kvm_vcpu_hv *hv_vcpu = vcpu_to_hv_vcpu(vcpu);
+
+	hv_vcpu->vp_index = kvm_vcpu_get_idx(vcpu);
+}
+
+int kvm_hv_activate_synic(struct kvm_vcpu *vcpu, bool dont_zero_synic_pages)
 {
+	struct kvm_vcpu_hv_synic *synic = vcpu_to_synic(vcpu);
+
 	/*
 	 * Hyper-V SynIC auto EOI SINT's are
 	 * not compatible with APICV, so deactivate APICV
 	 */
 	kvm_vcpu_deactivate_apicv(vcpu);
-	vcpu_to_synic(vcpu)->active = true;
+	synic->active = true;
+	synic->dont_zero_synic_pages = dont_zero_synic_pages;
 	return 0;
 }
 
@@ -978,6 +1004,11 @@ static int kvm_hv_set_msr(struct kvm_vcpu *vcpu, u32 msr, u64 data, bool host)
 	struct kvm_vcpu_hv *hv = &vcpu->arch.hyperv;
 
 	switch (msr) {
+	case HV_X64_MSR_VP_INDEX:
+		if (!host)
+			return 1;
+		hv->vp_index = (u32)data;
+		break;
 	case HV_X64_MSR_APIC_ASSIST_PAGE: {
 		u64 gfn;
 		unsigned long addr;
@@ -1089,18 +1120,9 @@ static int kvm_hv_get_msr(struct kvm_vcpu *vcpu, u32 msr, u64 *pdata)
 	struct kvm_vcpu_hv *hv = &vcpu->arch.hyperv;
 
 	switch (msr) {
-	case HV_X64_MSR_VP_INDEX: {
-		int r;
-		struct kvm_vcpu *v;
-
-		kvm_for_each_vcpu(r, v, vcpu->kvm) {
-			if (v == vcpu) {
-				data = r;
-				break;
-			}
-		}
+	case HV_X64_MSR_VP_INDEX:
+		data = hv->vp_index;
 		break;
-	}
 	case HV_X64_MSR_EOI:
 		return kvm_hv_vapic_msr_read(vcpu, APIC_EOI, pdata);
 	case HV_X64_MSR_ICR:
diff --git a/arch/x86/kvm/hyperv.h b/arch/x86/kvm/hyperv.h
index cd1119538add..e637631a9574 100644
--- a/arch/x86/kvm/hyperv.h
+++ b/arch/x86/kvm/hyperv.h
@@ -56,9 +56,10 @@ int kvm_hv_hypercall(struct kvm_vcpu *vcpu);
 void kvm_hv_irq_routing_update(struct kvm *kvm);
 int kvm_hv_synic_set_irq(struct kvm *kvm, u32 vcpu_id, u32 sint);
 void kvm_hv_synic_send_eoi(struct kvm_vcpu *vcpu, int vector);
-int kvm_hv_activate_synic(struct kvm_vcpu *vcpu);
+int kvm_hv_activate_synic(struct kvm_vcpu *vcpu, bool dont_zero_synic_pages);
 
 void kvm_hv_vcpu_init(struct kvm_vcpu *vcpu);
+void kvm_hv_vcpu_postcreate(struct kvm_vcpu *vcpu);
 void kvm_hv_vcpu_uninit(struct kvm_vcpu *vcpu);
 
 static inline struct kvm_vcpu_hv_stimer *vcpu_to_stimer(struct kvm_vcpu *vcpu,
diff --git a/arch/x86/kvm/i8254.c b/arch/x86/kvm/i8254.c
index a78b445ce411..af192895b1fc 100644
--- a/arch/x86/kvm/i8254.c
+++ b/arch/x86/kvm/i8254.c
@@ -724,8 +724,10 @@ void kvm_free_pit(struct kvm *kvm)
 	struct kvm_pit *pit = kvm->arch.vpit;
 
 	if (pit) {
+		mutex_lock(&kvm->slots_lock);
 		kvm_io_bus_unregister_dev(kvm, KVM_PIO_BUS, &pit->dev);
 		kvm_io_bus_unregister_dev(kvm, KVM_PIO_BUS, &pit->speaker_dev);
+		mutex_unlock(&kvm->slots_lock);
 		kvm_pit_set_reinject(pit, false);
 		hrtimer_cancel(&pit->pit_state.timer);
 		kthread_destroy_worker(pit->worker);
diff --git a/arch/x86/kvm/lapic.c b/arch/x86/kvm/lapic.c
index 2819d4c123eb..589dcc117086 100644
--- a/arch/x86/kvm/lapic.c
+++ b/arch/x86/kvm/lapic.c
@@ -1495,11 +1495,10 @@ EXPORT_SYMBOL_GPL(kvm_lapic_hv_timer_in_use);
 
 static void cancel_hv_timer(struct kvm_lapic *apic)
 {
+	WARN_ON(preemptible());
 	WARN_ON(!apic->lapic_timer.hv_timer_in_use);
-	preempt_disable();
 	kvm_x86_ops->cancel_hv_timer(apic->vcpu);
 	apic->lapic_timer.hv_timer_in_use = false;
-	preempt_enable();
 }
 
 static bool start_hv_timer(struct kvm_lapic *apic)
@@ -1507,6 +1506,7 @@ static bool start_hv_timer(struct kvm_lapic *apic)
 	struct kvm_timer *ktimer = &apic->lapic_timer;
 	int r;
 
+	WARN_ON(preemptible());
 	if (!kvm_x86_ops->set_hv_timer)
 		return false;
 
@@ -1538,6 +1538,8 @@ static bool start_hv_timer(struct kvm_lapic *apic)
 static void start_sw_timer(struct kvm_lapic *apic)
 {
 	struct kvm_timer *ktimer = &apic->lapic_timer;
+
+	WARN_ON(preemptible());
 	if (apic->lapic_timer.hv_timer_in_use)
 		cancel_hv_timer(apic);
 	if (!apic_lvtt_period(apic) && atomic_read(&ktimer->pending))
@@ -1552,15 +1554,20 @@ static void start_sw_timer(struct kvm_lapic *apic)
 
 static void restart_apic_timer(struct kvm_lapic *apic)
 {
+	preempt_disable();
 	if (!start_hv_timer(apic))
 		start_sw_timer(apic);
+	preempt_enable();
 }
 
 void kvm_lapic_expired_hv_timer(struct kvm_vcpu *vcpu)
 {
 	struct kvm_lapic *apic = vcpu->arch.apic;
 
-	WARN_ON(!apic->lapic_timer.hv_timer_in_use);
+	preempt_disable();
+	/* If the preempt notifier has already run, it also called apic_timer_expired */
+	if (!apic->lapic_timer.hv_timer_in_use)
+		goto out;
 	WARN_ON(swait_active(&vcpu->wq));
 	cancel_hv_timer(apic);
 	apic_timer_expired(apic);
@@ -1569,6 +1576,8 @@ void kvm_lapic_expired_hv_timer(struct kvm_vcpu *vcpu)
 		advance_periodic_target_expiration(apic);
 		restart_apic_timer(apic);
 	}
+out:
+	preempt_enable();
 }
 EXPORT_SYMBOL_GPL(kvm_lapic_expired_hv_timer);
 
@@ -1582,9 +1591,11 @@ void kvm_lapic_switch_to_sw_timer(struct kvm_vcpu *vcpu)
 {
 	struct kvm_lapic *apic = vcpu->arch.apic;
 
+	preempt_disable();
 	/* Possibly the TSC deadline timer is not enabled yet */
 	if (apic->lapic_timer.hv_timer_in_use)
 		start_sw_timer(apic);
+	preempt_enable();
 }
 EXPORT_SYMBOL_GPL(kvm_lapic_switch_to_sw_timer);
 
diff --git a/arch/x86/kvm/mmu.c b/arch/x86/kvm/mmu.c
index aafd399cf8c6..9b1dd114956a 100644
--- a/arch/x86/kvm/mmu.c
+++ b/arch/x86/kvm/mmu.c
@@ -46,6 +46,7 @@
 #include <asm/io.h>
 #include <asm/vmx.h>
 #include <asm/kvm_page_track.h>
+#include "trace.h"
 
 /*
  * When setting this variable to true it enables Two-Dimensional-Paging
@@ -3748,7 +3749,7 @@ bool kvm_can_do_async_pf(struct kvm_vcpu *vcpu)
 		     kvm_event_needs_reinjection(vcpu)))
 		return false;
 
-	if (is_guest_mode(vcpu))
+	if (!vcpu->arch.apf.delivery_as_pf_vmexit && is_guest_mode(vcpu))
 		return false;
 
 	return kvm_x86_ops->interrupt_allowed(vcpu);
@@ -3780,6 +3781,38 @@ static bool try_async_pf(struct kvm_vcpu *vcpu, bool prefault, gfn_t gfn,
 	return false;
 }
 
+int kvm_handle_page_fault(struct kvm_vcpu *vcpu, u64 error_code,
+				u64 fault_address, char *insn, int insn_len,
+				bool need_unprotect)
+{
+	int r = 1;
+
+	switch (vcpu->arch.apf.host_apf_reason) {
+	default:
+		trace_kvm_page_fault(fault_address, error_code);
+
+		if (need_unprotect && kvm_event_needs_reinjection(vcpu))
+			kvm_mmu_unprotect_page_virt(vcpu, fault_address);
+		r = kvm_mmu_page_fault(vcpu, fault_address, error_code, insn,
+				insn_len);
+		break;
+	case KVM_PV_REASON_PAGE_NOT_PRESENT:
+		vcpu->arch.apf.host_apf_reason = 0;
+		local_irq_disable();
+		kvm_async_pf_task_wait(fault_address);
+		local_irq_enable();
+		break;
+	case KVM_PV_REASON_PAGE_READY:
+		vcpu->arch.apf.host_apf_reason = 0;
+		local_irq_disable();
+		kvm_async_pf_task_wake(fault_address);
+		local_irq_enable();
+		break;
+	}
+	return r;
+}
+EXPORT_SYMBOL_GPL(kvm_handle_page_fault);
+
 static bool
 check_hugepage_cache_consistency(struct kvm_vcpu *vcpu, gfn_t gfn, int level)
 {
diff --git a/arch/x86/kvm/mmu.h b/arch/x86/kvm/mmu.h
index a276834950c1..d7d248a000dd 100644
--- a/arch/x86/kvm/mmu.h
+++ b/arch/x86/kvm/mmu.h
@@ -77,6 +77,9 @@ void kvm_init_shadow_mmu(struct kvm_vcpu *vcpu);
 void kvm_init_shadow_ept_mmu(struct kvm_vcpu *vcpu, bool execonly,
 			     bool accessed_dirty);
 bool kvm_can_do_async_pf(struct kvm_vcpu *vcpu);
+int kvm_handle_page_fault(struct kvm_vcpu *vcpu, u64 error_code,
+				u64 fault_address, char *insn, int insn_len,
+				bool need_unprotect);
 
 static inline unsigned int kvm_mmu_available_pages(struct kvm *kvm)
 {
diff --git a/arch/x86/kvm/svm.c b/arch/x86/kvm/svm.c
index 905ea6052517..56ba05312759 100644
--- a/arch/x86/kvm/svm.c
+++ b/arch/x86/kvm/svm.c
@@ -194,7 +194,6 @@ struct vcpu_svm {
 
 	unsigned int3_injected;
 	unsigned long int3_rip;
-	u32 apf_reason;
 
 	/* cached guest cpuid flags for faster access */
 	bool nrips_enabled	: 1;
@@ -277,6 +276,10 @@ static int avic;
 module_param(avic, int, S_IRUGO);
 #endif
 
+/* enable/disable Virtual VMLOAD VMSAVE */
+static int vls = true;
+module_param(vls, int, 0444);
+
 /* AVIC VM ID bit masks and lock */
 static DECLARE_BITMAP(avic_vm_id_bitmap, AVIC_VM_ID_NR);
 static DEFINE_SPINLOCK(avic_vm_id_lock);
@@ -633,11 +636,13 @@ static void skip_emulated_instruction(struct kvm_vcpu *vcpu)
 	svm_set_interrupt_shadow(vcpu, 0);
 }
 
-static void svm_queue_exception(struct kvm_vcpu *vcpu, unsigned nr,
-				bool has_error_code, u32 error_code,
-				bool reinject)
+static void svm_queue_exception(struct kvm_vcpu *vcpu)
 {
 	struct vcpu_svm *svm = to_svm(vcpu);
+	unsigned nr = vcpu->arch.exception.nr;
+	bool has_error_code = vcpu->arch.exception.has_error_code;
+	bool reinject = vcpu->arch.exception.reinject;
+	u32 error_code = vcpu->arch.exception.error_code;
 
 	/*
 	 * If we are within a nested VM we'd better #VMEXIT and let the guest
@@ -947,7 +952,7 @@ static void svm_enable_lbrv(struct vcpu_svm *svm)
 {
 	u32 *msrpm = svm->msrpm;
 
-	svm->vmcb->control.lbr_ctl = 1;
+	svm->vmcb->control.virt_ext |= LBR_CTL_ENABLE_MASK;
 	set_msr_interception(msrpm, MSR_IA32_LASTBRANCHFROMIP, 1, 1);
 	set_msr_interception(msrpm, MSR_IA32_LASTBRANCHTOIP, 1, 1);
 	set_msr_interception(msrpm, MSR_IA32_LASTINTFROMIP, 1, 1);
@@ -958,7 +963,7 @@ static void svm_disable_lbrv(struct vcpu_svm *svm)
 {
 	u32 *msrpm = svm->msrpm;
 
-	svm->vmcb->control.lbr_ctl = 0;
+	svm->vmcb->control.virt_ext &= ~LBR_CTL_ENABLE_MASK;
 	set_msr_interception(msrpm, MSR_IA32_LASTBRANCHFROMIP, 0, 0);
 	set_msr_interception(msrpm, MSR_IA32_LASTBRANCHTOIP, 0, 0);
 	set_msr_interception(msrpm, MSR_IA32_LASTINTFROMIP, 0, 0);
@@ -1093,6 +1098,16 @@ static __init int svm_hardware_setup(void)
 		}
 	}
 
+	if (vls) {
+		if (!npt_enabled ||
+		    !boot_cpu_has(X86_FEATURE_V_VMSAVE_VMLOAD) ||
+		    !IS_ENABLED(CONFIG_X86_64)) {
+			vls = false;
+		} else {
+			pr_info("Virtual VMLOAD VMSAVE supported\n");
+		}
+	}
+
 	return 0;
 
 err:
@@ -1280,6 +1295,16 @@ static void init_vmcb(struct vcpu_svm *svm)
 	if (avic)
 		avic_init_vmcb(svm);
 
+	/*
+	 * If hardware supports Virtual VMLOAD VMSAVE then enable it
+	 * in VMCB and clear intercepts to avoid #VMEXIT.
+	 */
+	if (vls) {
+		clr_intercept(svm, INTERCEPT_VMLOAD);
+		clr_intercept(svm, INTERCEPT_VMSAVE);
+		svm->vmcb->control.virt_ext |= VIRTUAL_VMLOAD_VMSAVE_ENABLE_MASK;
+	}
+
 	mark_all_dirty(svm->vmcb);
 
 	enable_gif(svm);
@@ -2096,34 +2121,11 @@ static void svm_set_dr7(struct kvm_vcpu *vcpu, unsigned long value)
 static int pf_interception(struct vcpu_svm *svm)
 {
 	u64 fault_address = svm->vmcb->control.exit_info_2;
-	u64 error_code;
-	int r = 1;
+	u64 error_code = svm->vmcb->control.exit_info_1;
 
-	switch (svm->apf_reason) {
-	default:
-		error_code = svm->vmcb->control.exit_info_1;
-
-		trace_kvm_page_fault(fault_address, error_code);
-		if (!npt_enabled && kvm_event_needs_reinjection(&svm->vcpu))
-			kvm_mmu_unprotect_page_virt(&svm->vcpu, fault_address);
-		r = kvm_mmu_page_fault(&svm->vcpu, fault_address, error_code,
+	return kvm_handle_page_fault(&svm->vcpu, error_code, fault_address,
 			svm->vmcb->control.insn_bytes,
-			svm->vmcb->control.insn_len);
-		break;
-	case KVM_PV_REASON_PAGE_NOT_PRESENT:
-		svm->apf_reason = 0;
-		local_irq_disable();
-		kvm_async_pf_task_wait(fault_address);
-		local_irq_enable();
-		break;
-	case KVM_PV_REASON_PAGE_READY:
-		svm->apf_reason = 0;
-		local_irq_disable();
-		kvm_async_pf_task_wake(fault_address);
-		local_irq_enable();
-		break;
-	}
-	return r;
+			svm->vmcb->control.insn_len, !npt_enabled);
 }
 
 static int db_interception(struct vcpu_svm *svm)
@@ -2267,7 +2269,7 @@ static int io_interception(struct vcpu_svm *svm)
 {
 	struct kvm_vcpu *vcpu = &svm->vcpu;
 	u32 io_info = svm->vmcb->control.exit_info_1; /* address size bug? */
-	int size, in, string;
+	int size, in, string, ret;
 	unsigned port;
 
 	++svm->vcpu.stat.io_exits;
@@ -2279,10 +2281,16 @@ static int io_interception(struct vcpu_svm *svm)
 	port = io_info >> 16;
 	size = (io_info & SVM_IOIO_SIZE_MASK) >> SVM_IOIO_SIZE_SHIFT;
 	svm->next_rip = svm->vmcb->control.exit_info_2;
-	skip_emulated_instruction(&svm->vcpu);
+	ret = kvm_skip_emulated_instruction(&svm->vcpu);
 
-	return in ? kvm_fast_pio_in(vcpu, size, port)
-		  : kvm_fast_pio_out(vcpu, size, port);
+	/*
+	 * TODO: we might be squashing a KVM_GUESTDBG_SINGLESTEP-triggered
+	 * KVM_EXIT_DEBUG here.
+	 */
+	if (in)
+		return kvm_fast_pio_in(vcpu, size, port) && ret;
+	else
+		return kvm_fast_pio_out(vcpu, size, port) && ret;
 }
 
 static int nmi_interception(struct vcpu_svm *svm)
@@ -2415,15 +2423,29 @@ static int nested_svm_check_exception(struct vcpu_svm *svm, unsigned nr,
 	if (!is_guest_mode(&svm->vcpu))
 		return 0;
 
+	vmexit = nested_svm_intercept(svm);
+	if (vmexit != NESTED_EXIT_DONE)
+		return 0;
+
 	svm->vmcb->control.exit_code = SVM_EXIT_EXCP_BASE + nr;
 	svm->vmcb->control.exit_code_hi = 0;
 	svm->vmcb->control.exit_info_1 = error_code;
-	svm->vmcb->control.exit_info_2 = svm->vcpu.arch.cr2;
 
-	vmexit = nested_svm_intercept(svm);
-	if (vmexit == NESTED_EXIT_DONE)
-		svm->nested.exit_required = true;
+	/*
+	 * FIXME: we should not write CR2 when L1 intercepts an L2 #PF exception.
+	 * The fix is to add the ancillary datum (CR2 or DR6) to structs
+	 * kvm_queued_exception and kvm_vcpu_events, so that CR2 and DR6 can be
+	 * written only when inject_pending_event runs (DR6 would written here
+	 * too).  This should be conditional on a new capability---if the
+	 * capability is disabled, kvm_multiple_exception would write the
+	 * ancillary information to CR2 or DR6, for backwards ABI-compatibility.
+	 */
+	if (svm->vcpu.arch.exception.nested_apf)
+		svm->vmcb->control.exit_info_2 = svm->vcpu.arch.apf.nested_apf_token;
+	else
+		svm->vmcb->control.exit_info_2 = svm->vcpu.arch.cr2;
 
+	svm->nested.exit_required = true;
 	return vmexit;
 }
 
@@ -2598,7 +2620,7 @@ static int nested_svm_exit_special(struct vcpu_svm *svm)
 		break;
 	case SVM_EXIT_EXCP_BASE + PF_VECTOR:
 		/* When we're shadowing, trap PFs, but not async PF */
-		if (!npt_enabled && svm->apf_reason == 0)
+		if (!npt_enabled && svm->vcpu.arch.apf.host_apf_reason == 0)
 			return NESTED_EXIT_HOST;
 		break;
 	default:
@@ -2645,7 +2667,7 @@ static int nested_svm_intercept(struct vcpu_svm *svm)
 		}
 		/* async page fault always cause vmexit */
 		else if ((exit_code == SVM_EXIT_EXCP_BASE + PF_VECTOR) &&
-			 svm->apf_reason != 0)
+			 svm->vcpu.arch.exception.nested_apf != 0)
 			vmexit = NESTED_EXIT_DONE;
 		break;
 	}
@@ -2702,7 +2724,7 @@ static inline void copy_vmcb_control_area(struct vmcb *dst_vmcb, struct vmcb *fr
 	dst->event_inj            = from->event_inj;
 	dst->event_inj_err        = from->event_inj_err;
 	dst->nested_cr3           = from->nested_cr3;
-	dst->lbr_ctl              = from->lbr_ctl;
+	dst->virt_ext              = from->virt_ext;
 }
 
 static int nested_svm_vmexit(struct vcpu_svm *svm)
@@ -3008,7 +3030,7 @@ static bool nested_svm_vmrun(struct vcpu_svm *svm)
 	/* We don't want to see VMMCALLs from a nested guest */
 	clr_intercept(svm, INTERCEPT_VMMCALL);
 
-	svm->vmcb->control.lbr_ctl = nested_vmcb->control.lbr_ctl;
+	svm->vmcb->control.virt_ext = nested_vmcb->control.virt_ext;
 	svm->vmcb->control.int_vector = nested_vmcb->control.int_vector;
 	svm->vmcb->control.int_state = nested_vmcb->control.int_state;
 	svm->vmcb->control.tsc_offset += nested_vmcb->control.tsc_offset;
@@ -3055,6 +3077,7 @@ static int vmload_interception(struct vcpu_svm *svm)
 {
 	struct vmcb *nested_vmcb;
 	struct page *page;
+	int ret;
 
 	if (nested_svm_check_permissions(svm))
 		return 1;
@@ -3064,18 +3087,19 @@ static int vmload_interception(struct vcpu_svm *svm)
 		return 1;
 
 	svm->next_rip = kvm_rip_read(&svm->vcpu) + 3;
-	skip_emulated_instruction(&svm->vcpu);
+	ret = kvm_skip_emulated_instruction(&svm->vcpu);
 
 	nested_svm_vmloadsave(nested_vmcb, svm->vmcb);
 	nested_svm_unmap(page);
 
-	return 1;
+	return ret;
 }
 
 static int vmsave_interception(struct vcpu_svm *svm)
 {
 	struct vmcb *nested_vmcb;
 	struct page *page;
+	int ret;
 
 	if (nested_svm_check_permissions(svm))
 		return 1;
@@ -3085,12 +3109,12 @@ static int vmsave_interception(struct vcpu_svm *svm)
 		return 1;
 
 	svm->next_rip = kvm_rip_read(&svm->vcpu) + 3;
-	skip_emulated_instruction(&svm->vcpu);
+	ret = kvm_skip_emulated_instruction(&svm->vcpu);
 
 	nested_svm_vmloadsave(svm->vmcb, nested_vmcb);
 	nested_svm_unmap(page);
 
-	return 1;
+	return ret;
 }
 
 static int vmrun_interception(struct vcpu_svm *svm)
@@ -3123,25 +3147,29 @@ failed:
 
 static int stgi_interception(struct vcpu_svm *svm)
 {
+	int ret;
+
 	if (nested_svm_check_permissions(svm))
 		return 1;
 
 	svm->next_rip = kvm_rip_read(&svm->vcpu) + 3;
-	skip_emulated_instruction(&svm->vcpu);
+	ret = kvm_skip_emulated_instruction(&svm->vcpu);
 	kvm_make_request(KVM_REQ_EVENT, &svm->vcpu);
 
 	enable_gif(svm);
 
-	return 1;
+	return ret;
 }
 
 static int clgi_interception(struct vcpu_svm *svm)
 {
+	int ret;
+
 	if (nested_svm_check_permissions(svm))
 		return 1;
 
 	svm->next_rip = kvm_rip_read(&svm->vcpu) + 3;
-	skip_emulated_instruction(&svm->vcpu);
+	ret = kvm_skip_emulated_instruction(&svm->vcpu);
 
 	disable_gif(svm);
 
@@ -3152,7 +3180,7 @@ static int clgi_interception(struct vcpu_svm *svm)
 		mark_dirty(svm->vmcb, VMCB_INTR);
 	}
 
-	return 1;
+	return ret;
 }
 
 static int invlpga_interception(struct vcpu_svm *svm)
@@ -3166,8 +3194,7 @@ static int invlpga_interception(struct vcpu_svm *svm)
 	kvm_mmu_invlpg(vcpu, kvm_register_read(&svm->vcpu, VCPU_REGS_RAX));
 
 	svm->next_rip = kvm_rip_read(&svm->vcpu) + 3;
-	skip_emulated_instruction(&svm->vcpu);
-	return 1;
+	return kvm_skip_emulated_instruction(&svm->vcpu);
 }
 
 static int skinit_interception(struct vcpu_svm *svm)
@@ -3190,7 +3217,7 @@ static int xsetbv_interception(struct vcpu_svm *svm)
 
 	if (kvm_set_xcr(&svm->vcpu, index, new_bv) == 0) {
 		svm->next_rip = kvm_rip_read(&svm->vcpu) + 3;
-		skip_emulated_instruction(&svm->vcpu);
+		return kvm_skip_emulated_instruction(&svm->vcpu);
 	}
 
 	return 1;
@@ -3286,8 +3313,7 @@ static int invlpg_interception(struct vcpu_svm *svm)
 		return emulate_instruction(&svm->vcpu, 0) == EMULATE_DONE;
 
 	kvm_mmu_invlpg(&svm->vcpu, svm->vmcb->control.exit_info_1);
-	skip_emulated_instruction(&svm->vcpu);
-	return 1;
+	return kvm_skip_emulated_instruction(&svm->vcpu);
 }
 
 static int emulate_on_interception(struct vcpu_svm *svm)
@@ -3437,9 +3463,7 @@ static int dr_interception(struct vcpu_svm *svm)
 		kvm_register_write(&svm->vcpu, reg, val);
 	}
 
-	skip_emulated_instruction(&svm->vcpu);
-
-	return 1;
+	return kvm_skip_emulated_instruction(&svm->vcpu);
 }
 
 static int cr8_write_interception(struct vcpu_svm *svm)
@@ -3562,6 +3586,7 @@ static int rdmsr_interception(struct vcpu_svm *svm)
 	if (svm_get_msr(&svm->vcpu, &msr_info)) {
 		trace_kvm_msr_read_ex(ecx);
 		kvm_inject_gp(&svm->vcpu, 0);
+		return 1;
 	} else {
 		trace_kvm_msr_read(ecx, msr_info.data);
 
@@ -3570,9 +3595,8 @@ static int rdmsr_interception(struct vcpu_svm *svm)
 		kvm_register_write(&svm->vcpu, VCPU_REGS_RDX,
 				   msr_info.data >> 32);
 		svm->next_rip = kvm_rip_read(&svm->vcpu) + 2;
-		skip_emulated_instruction(&svm->vcpu);
+		return kvm_skip_emulated_instruction(&svm->vcpu);
 	}
-	return 1;
 }
 
 static int svm_set_vm_cr(struct kvm_vcpu *vcpu, u64 data)
@@ -3698,11 +3722,11 @@ static int wrmsr_interception(struct vcpu_svm *svm)
 	if (kvm_set_msr(&svm->vcpu, &msr)) {
 		trace_kvm_msr_write_ex(ecx, data);
 		kvm_inject_gp(&svm->vcpu, 0);
+		return 1;
 	} else {
 		trace_kvm_msr_write(ecx, data);
-		skip_emulated_instruction(&svm->vcpu);
+		return kvm_skip_emulated_instruction(&svm->vcpu);
 	}
-	return 1;
 }
 
 static int msr_interception(struct vcpu_svm *svm)
@@ -3731,8 +3755,7 @@ static int pause_interception(struct vcpu_svm *svm)
 
 static int nop_interception(struct vcpu_svm *svm)
 {
-	skip_emulated_instruction(&(svm->vcpu));
-	return 1;
+	return kvm_skip_emulated_instruction(&(svm->vcpu));
 }
 
 static int monitor_interception(struct vcpu_svm *svm)
@@ -4117,7 +4140,7 @@ static void dump_vmcb(struct kvm_vcpu *vcpu)
 	pr_err("%-20s%016llx\n", "avic_vapic_bar:", control->avic_vapic_bar);
 	pr_err("%-20s%08x\n", "event_inj:", control->event_inj);
 	pr_err("%-20s%08x\n", "event_inj_err:", control->event_inj_err);
-	pr_err("%-20s%lld\n", "lbr_ctl:", control->lbr_ctl);
+	pr_err("%-20s%lld\n", "virt_ext:", control->virt_ext);
 	pr_err("%-20s%016llx\n", "next_rip:", control->next_rip);
 	pr_err("%-20s%016llx\n", "avic_backing_page:", control->avic_backing_page);
 	pr_err("%-20s%016llx\n", "avic_logical_id:", control->avic_logical_id);
@@ -4965,7 +4988,7 @@ static void svm_vcpu_run(struct kvm_vcpu *vcpu)
 
 	/* if exit due to PF check for async PF */
 	if (svm->vmcb->control.exit_code == SVM_EXIT_EXCP_BASE + PF_VECTOR)
-		svm->apf_reason = kvm_read_and_reset_pf_reason();
+		svm->vcpu.arch.apf.host_apf_reason = kvm_read_and_reset_pf_reason();
 
 	if (npt_enabled) {
 		vcpu->arch.regs_avail &= ~(1 << VCPU_EXREG_PDPTR);
diff --git a/arch/x86/kvm/vmx.c b/arch/x86/kvm/vmx.c
index f76efad248ab..9b21b1223035 100644
--- a/arch/x86/kvm/vmx.c
+++ b/arch/x86/kvm/vmx.c
@@ -198,7 +198,8 @@ struct loaded_vmcs {
 	struct vmcs *vmcs;
 	struct vmcs *shadow_vmcs;
 	int cpu;
-	int launched;
+	bool launched;
+	bool nmi_known_unmasked;
 	struct list_head loaded_vmcss_on_cpu_link;
 };
 
@@ -415,13 +416,10 @@ struct nested_vmx {
 
 	/* The guest-physical address of the current VMCS L1 keeps for L2 */
 	gpa_t current_vmptr;
-	/* The host-usable pointer to the above */
-	struct page *current_vmcs12_page;
-	struct vmcs12 *current_vmcs12;
 	/*
 	 * Cache of the guest's VMCS, existing outside of guest memory.
 	 * Loaded from guest memory during VMPTRLD. Flushed to guest
-	 * memory during VMXOFF, VMCLEAR, VMPTRLD.
+	 * memory during VMCLEAR and VMPTRLD.
 	 */
 	struct vmcs12 *cached_vmcs12;
 	/*
@@ -562,7 +560,6 @@ struct vcpu_vmx {
 	struct kvm_vcpu       vcpu;
 	unsigned long         host_rsp;
 	u8                    fail;
-	bool                  nmi_known_unmasked;
 	u32                   exit_intr_info;
 	u32                   idt_vectoring_info;
 	ulong                 rflags;
@@ -927,6 +924,10 @@ static u32 vmx_segment_access_rights(struct kvm_segment *var);
 static void copy_vmcs12_to_shadow(struct vcpu_vmx *vmx);
 static void copy_shadow_to_vmcs12(struct vcpu_vmx *vmx);
 static int alloc_identity_pagetable(struct kvm *kvm);
+static bool vmx_get_nmi_mask(struct kvm_vcpu *vcpu);
+static void vmx_set_nmi_mask(struct kvm_vcpu *vcpu, bool masked);
+static bool nested_vmx_is_page_fault_vmexit(struct vmcs12 *vmcs12,
+					    u16 error_code);
 
 static DEFINE_PER_CPU(struct vmcs *, vmxarea);
 static DEFINE_PER_CPU(struct vmcs *, current_vmcs);
@@ -2326,6 +2327,11 @@ static void vmx_vcpu_put(struct kvm_vcpu *vcpu)
 	__vmx_load_host_state(to_vmx(vcpu));
 }
 
+static bool emulation_required(struct kvm_vcpu *vcpu)
+{
+	return emulate_invalid_guest_state && !guest_state_valid(vcpu);
+}
+
 static void vmx_decache_cr0_guest_bits(struct kvm_vcpu *vcpu);
 
 /*
@@ -2363,6 +2369,8 @@ static unsigned long vmx_get_rflags(struct kvm_vcpu *vcpu)
 
 static void vmx_set_rflags(struct kvm_vcpu *vcpu, unsigned long rflags)
 {
+	unsigned long old_rflags = vmx_get_rflags(vcpu);
+
 	__set_bit(VCPU_EXREG_RFLAGS, (ulong *)&vcpu->arch.regs_avail);
 	to_vmx(vcpu)->rflags = rflags;
 	if (to_vmx(vcpu)->rmode.vm86_active) {
@@ -2370,6 +2378,9 @@ static void vmx_set_rflags(struct kvm_vcpu *vcpu, unsigned long rflags)
 		rflags |= X86_EFLAGS_IOPL | X86_EFLAGS_VM;
 	}
 	vmcs_writel(GUEST_RFLAGS, rflags);
+
+	if ((old_rflags ^ to_vmx(vcpu)->rflags) & X86_EFLAGS_VM)
+		to_vmx(vcpu)->emulation_required = emulation_required(vcpu);
 }
 
 static u32 vmx_get_pkru(struct kvm_vcpu *vcpu)
@@ -2418,32 +2429,84 @@ static void skip_emulated_instruction(struct kvm_vcpu *vcpu)
 	vmx_set_interrupt_shadow(vcpu, 0);
 }
 
+static void nested_vmx_inject_exception_vmexit(struct kvm_vcpu *vcpu,
+					       unsigned long exit_qual)
+{
+	struct vmcs12 *vmcs12 = get_vmcs12(vcpu);
+	unsigned int nr = vcpu->arch.exception.nr;
+	u32 intr_info = nr | INTR_INFO_VALID_MASK;
+
+	if (vcpu->arch.exception.has_error_code) {
+		vmcs12->vm_exit_intr_error_code = vcpu->arch.exception.error_code;
+		intr_info |= INTR_INFO_DELIVER_CODE_MASK;
+	}
+
+	if (kvm_exception_is_soft(nr))
+		intr_info |= INTR_TYPE_SOFT_EXCEPTION;
+	else
+		intr_info |= INTR_TYPE_HARD_EXCEPTION;
+
+	if (!(vmcs12->idt_vectoring_info_field & VECTORING_INFO_VALID_MASK) &&
+	    vmx_get_nmi_mask(vcpu))
+		intr_info |= INTR_INFO_UNBLOCK_NMI;
+
+	nested_vmx_vmexit(vcpu, EXIT_REASON_EXCEPTION_NMI, intr_info, exit_qual);
+}
+
 /*
  * KVM wants to inject page-faults which it got to the guest. This function
  * checks whether in a nested guest, we need to inject them to L1 or L2.
  */
-static int nested_vmx_check_exception(struct kvm_vcpu *vcpu, unsigned nr)
+static int nested_vmx_check_exception(struct kvm_vcpu *vcpu)
 {
 	struct vmcs12 *vmcs12 = get_vmcs12(vcpu);
+	unsigned int nr = vcpu->arch.exception.nr;
 
-	if (!(vmcs12->exception_bitmap & (1u << nr)))
-		return 0;
+	if (nr == PF_VECTOR) {
+		if (vcpu->arch.exception.nested_apf) {
+			nested_vmx_inject_exception_vmexit(vcpu,
+							   vcpu->arch.apf.nested_apf_token);
+			return 1;
+		}
+		/*
+		 * FIXME: we must not write CR2 when L1 intercepts an L2 #PF exception.
+		 * The fix is to add the ancillary datum (CR2 or DR6) to structs
+		 * kvm_queued_exception and kvm_vcpu_events, so that CR2 and DR6
+		 * can be written only when inject_pending_event runs.  This should be
+		 * conditional on a new capability---if the capability is disabled,
+		 * kvm_multiple_exception would write the ancillary information to
+		 * CR2 or DR6, for backwards ABI-compatibility.
+		 */
+		if (nested_vmx_is_page_fault_vmexit(vmcs12,
+						    vcpu->arch.exception.error_code)) {
+			nested_vmx_inject_exception_vmexit(vcpu, vcpu->arch.cr2);
+			return 1;
+		}
+	} else {
+		unsigned long exit_qual = 0;
+		if (nr == DB_VECTOR)
+			exit_qual = vcpu->arch.dr6;
 
-	nested_vmx_vmexit(vcpu, EXIT_REASON_EXCEPTION_NMI,
-			  vmcs_read32(VM_EXIT_INTR_INFO),
-			  vmcs_readl(EXIT_QUALIFICATION));
-	return 1;
+		if (vmcs12->exception_bitmap & (1u << nr)) {
+			nested_vmx_inject_exception_vmexit(vcpu, exit_qual);
+			return 1;
+		}
+	}
+
+	return 0;
 }
 
-static void vmx_queue_exception(struct kvm_vcpu *vcpu, unsigned nr,
-				bool has_error_code, u32 error_code,
-				bool reinject)
+static void vmx_queue_exception(struct kvm_vcpu *vcpu)
 {
 	struct vcpu_vmx *vmx = to_vmx(vcpu);
+	unsigned nr = vcpu->arch.exception.nr;
+	bool has_error_code = vcpu->arch.exception.has_error_code;
+	bool reinject = vcpu->arch.exception.reinject;
+	u32 error_code = vcpu->arch.exception.error_code;
 	u32 intr_info = nr | INTR_INFO_VALID_MASK;
 
 	if (!reinject && is_guest_mode(vcpu) &&
-	    nested_vmx_check_exception(vcpu, nr))
+	    nested_vmx_check_exception(vcpu))
 		return;
 
 	if (has_error_code) {
@@ -2644,7 +2707,7 @@ static void nested_vmx_setup_ctls_msrs(struct vcpu_vmx *vmx)
 	 * reason is that if one of these bits is necessary, it will appear
 	 * in vmcs01 and prepare_vmcs02, when it bitwise-or's the control
 	 * fields of vmcs01 and vmcs02, will turn these bits off - and
-	 * nested_vmx_exit_handled() will not pass related exits to L1.
+	 * nested_vmx_exit_reflected() will not pass related exits to L1.
 	 * These rules have exceptions below.
 	 */
 
@@ -3764,6 +3827,25 @@ static void free_kvm_area(void)
 	}
 }
 
+enum vmcs_field_type {
+	VMCS_FIELD_TYPE_U16 = 0,
+	VMCS_FIELD_TYPE_U64 = 1,
+	VMCS_FIELD_TYPE_U32 = 2,
+	VMCS_FIELD_TYPE_NATURAL_WIDTH = 3
+};
+
+static inline int vmcs_field_type(unsigned long field)
+{
+	if (0x1 & field)	/* the *_HIGH fields are all 32 bit */
+		return VMCS_FIELD_TYPE_U32;
+	return (field >> 13) & 0x3 ;
+}
+
+static inline int vmcs_field_readonly(unsigned long field)
+{
+	return (((field >> 10) & 0x3) == 1);
+}
+
 static void init_vmcs_shadow_fields(void)
 {
 	int i, j;
@@ -3789,14 +3871,22 @@ static void init_vmcs_shadow_fields(void)
 
 	/* shadowed fields guest access without vmexit */
 	for (i = 0; i < max_shadow_read_write_fields; i++) {
-		clear_bit(shadow_read_write_fields[i],
-			  vmx_vmwrite_bitmap);
-		clear_bit(shadow_read_write_fields[i],
-			  vmx_vmread_bitmap);
+		unsigned long field = shadow_read_write_fields[i];
+
+		clear_bit(field, vmx_vmwrite_bitmap);
+		clear_bit(field, vmx_vmread_bitmap);
+		if (vmcs_field_type(field) == VMCS_FIELD_TYPE_U64) {
+			clear_bit(field + 1, vmx_vmwrite_bitmap);
+			clear_bit(field + 1, vmx_vmread_bitmap);
+		}
+	}
+	for (i = 0; i < max_shadow_read_only_fields; i++) {
+		unsigned long field = shadow_read_only_fields[i];
+
+		clear_bit(field, vmx_vmread_bitmap);
+		if (vmcs_field_type(field) == VMCS_FIELD_TYPE_U64)
+			clear_bit(field + 1, vmx_vmread_bitmap);
 	}
-	for (i = 0; i < max_shadow_read_only_fields; i++)
-		clear_bit(shadow_read_only_fields[i],
-			  vmx_vmread_bitmap);
 }
 
 static __init int alloc_kvm_area(void)
@@ -3817,11 +3907,6 @@ static __init int alloc_kvm_area(void)
 	return 0;
 }
 
-static bool emulation_required(struct kvm_vcpu *vcpu)
-{
-	return emulate_invalid_guest_state && !guest_state_valid(vcpu);
-}
-
 static void fix_pmode_seg(struct kvm_vcpu *vcpu, int seg,
 		struct kvm_segment *save)
 {
@@ -4634,6 +4719,11 @@ static bool guest_state_valid(struct kvm_vcpu *vcpu)
 	return true;
 }
 
+static bool page_address_valid(struct kvm_vcpu *vcpu, gpa_t gpa)
+{
+	return PAGE_ALIGNED(gpa) && !(gpa >> cpuid_maxphyaddr(vcpu));
+}
+
 static int init_rmode_tss(struct kvm *kvm)
 {
 	gfn_t fn;
@@ -4905,6 +4995,28 @@ static bool vmx_get_enable_apicv(void)
 	return enable_apicv;
 }
 
+static void nested_mark_vmcs12_pages_dirty(struct kvm_vcpu *vcpu)
+{
+	struct vmcs12 *vmcs12 = get_vmcs12(vcpu);
+	gfn_t gfn;
+
+	/*
+	 * Don't need to mark the APIC access page dirty; it is never
+	 * written to by the CPU during APIC virtualization.
+	 */
+
+	if (nested_cpu_has(vmcs12, CPU_BASED_TPR_SHADOW)) {
+		gfn = vmcs12->virtual_apic_page_addr >> PAGE_SHIFT;
+		kvm_vcpu_mark_page_dirty(vcpu, gfn);
+	}
+
+	if (nested_cpu_has_posted_intr(vmcs12)) {
+		gfn = vmcs12->posted_intr_desc_addr >> PAGE_SHIFT;
+		kvm_vcpu_mark_page_dirty(vcpu, gfn);
+	}
+}
+
+
 static void vmx_complete_nested_posted_interrupt(struct kvm_vcpu *vcpu)
 {
 	struct vcpu_vmx *vmx = to_vmx(vcpu);
@@ -4912,18 +5024,15 @@ static void vmx_complete_nested_posted_interrupt(struct kvm_vcpu *vcpu)
 	void *vapic_page;
 	u16 status;
 
-	if (vmx->nested.pi_desc &&
-	    vmx->nested.pi_pending) {
-		vmx->nested.pi_pending = false;
-		if (!pi_test_and_clear_on(vmx->nested.pi_desc))
-			return;
-
-		max_irr = find_last_bit(
-			(unsigned long *)vmx->nested.pi_desc->pir, 256);
+	if (!vmx->nested.pi_desc || !vmx->nested.pi_pending)
+		return;
 
-		if (max_irr == 256)
-			return;
+	vmx->nested.pi_pending = false;
+	if (!pi_test_and_clear_on(vmx->nested.pi_desc))
+		return;
 
+	max_irr = find_last_bit((unsigned long *)vmx->nested.pi_desc->pir, 256);
+	if (max_irr != 256) {
 		vapic_page = kmap(vmx->nested.virtual_apic_page);
 		__kvm_apic_update_irr(vmx->nested.pi_desc->pir, vapic_page);
 		kunmap(vmx->nested.virtual_apic_page);
@@ -4935,11 +5044,16 @@ static void vmx_complete_nested_posted_interrupt(struct kvm_vcpu *vcpu)
 			vmcs_write16(GUEST_INTR_STATUS, status);
 		}
 	}
+
+	nested_mark_vmcs12_pages_dirty(vcpu);
 }
 
-static inline bool kvm_vcpu_trigger_posted_interrupt(struct kvm_vcpu *vcpu)
+static inline bool kvm_vcpu_trigger_posted_interrupt(struct kvm_vcpu *vcpu,
+						     bool nested)
 {
 #ifdef CONFIG_SMP
+	int pi_vec = nested ? POSTED_INTR_NESTED_VECTOR : POSTED_INTR_VECTOR;
+
 	if (vcpu->mode == IN_GUEST_MODE) {
 		struct vcpu_vmx *vmx = to_vmx(vcpu);
 
@@ -4957,8 +5071,7 @@ static inline bool kvm_vcpu_trigger_posted_interrupt(struct kvm_vcpu *vcpu)
 		 */
 		WARN_ON_ONCE(pi_test_sn(&vmx->pi_desc));
 
-		apic->send_IPI_mask(get_cpu_mask(vcpu->cpu),
-				POSTED_INTR_VECTOR);
+		apic->send_IPI_mask(get_cpu_mask(vcpu->cpu), pi_vec);
 		return true;
 	}
 #endif
@@ -4973,7 +5086,7 @@ static int vmx_deliver_nested_posted_interrupt(struct kvm_vcpu *vcpu,
 	if (is_guest_mode(vcpu) &&
 	    vector == vmx->nested.posted_intr_nv) {
 		/* the PIR and ON have been set by L1. */
-		kvm_vcpu_trigger_posted_interrupt(vcpu);
+		kvm_vcpu_trigger_posted_interrupt(vcpu, true);
 		/*
 		 * If a posted intr is not recognized by hardware,
 		 * we will accomplish it in the next vmentry.
@@ -5007,7 +5120,7 @@ static void vmx_deliver_posted_interrupt(struct kvm_vcpu *vcpu, int vector)
 	if (pi_test_and_set_on(&vmx->pi_desc))
 		return;
 
-	if (!kvm_vcpu_trigger_posted_interrupt(vcpu))
+	if (!kvm_vcpu_trigger_posted_interrupt(vcpu, false))
 		kvm_vcpu_kick(vcpu);
 }
 
@@ -5465,10 +5578,8 @@ static void vmx_inject_nmi(struct kvm_vcpu *vcpu)
 {
 	struct vcpu_vmx *vmx = to_vmx(vcpu);
 
-	if (!is_guest_mode(vcpu)) {
-		++vcpu->stat.nmi_injections;
-		vmx->nmi_known_unmasked = false;
-	}
+	++vcpu->stat.nmi_injections;
+	vmx->loaded_vmcs->nmi_known_unmasked = false;
 
 	if (vmx->rmode.vm86_active) {
 		if (kvm_inject_realmode_interrupt(vcpu, NMI_VECTOR, 0) != EMULATE_DONE)
@@ -5482,16 +5593,21 @@ static void vmx_inject_nmi(struct kvm_vcpu *vcpu)
 
 static bool vmx_get_nmi_mask(struct kvm_vcpu *vcpu)
 {
-	if (to_vmx(vcpu)->nmi_known_unmasked)
+	struct vcpu_vmx *vmx = to_vmx(vcpu);
+	bool masked;
+
+	if (vmx->loaded_vmcs->nmi_known_unmasked)
 		return false;
-	return vmcs_read32(GUEST_INTERRUPTIBILITY_INFO)	& GUEST_INTR_STATE_NMI;
+	masked = vmcs_read32(GUEST_INTERRUPTIBILITY_INFO) & GUEST_INTR_STATE_NMI;
+	vmx->loaded_vmcs->nmi_known_unmasked = !masked;
+	return masked;
 }
 
 static void vmx_set_nmi_mask(struct kvm_vcpu *vcpu, bool masked)
 {
 	struct vcpu_vmx *vmx = to_vmx(vcpu);
 
-	vmx->nmi_known_unmasked = !masked;
+	vmx->loaded_vmcs->nmi_known_unmasked = !masked;
 	if (masked)
 		vmcs_set_bits(GUEST_INTERRUPTIBILITY_INFO,
 			      GUEST_INTR_STATE_NMI);
@@ -5664,14 +5780,11 @@ static int handle_exception(struct kvm_vcpu *vcpu)
 	}
 
 	if (is_page_fault(intr_info)) {
-		/* EPT won't cause page fault directly */
-		BUG_ON(enable_ept);
 		cr2 = vmcs_readl(EXIT_QUALIFICATION);
-		trace_kvm_page_fault(cr2, error_code);
-
-		if (kvm_event_needs_reinjection(vcpu))
-			kvm_mmu_unprotect_page_virt(vcpu, cr2);
-		return kvm_mmu_page_fault(vcpu, cr2, error_code, NULL, 0);
+		/* EPT won't cause page fault directly */
+		WARN_ON_ONCE(!vcpu->arch.apf.host_apf_reason && enable_ept);
+		return kvm_handle_page_fault(vcpu, error_code, cr2, NULL, 0,
+				true);
 	}
 
 	ex_no = intr_info & INTR_INFO_VECTOR_MASK;
@@ -7082,34 +7195,32 @@ static int nested_vmx_check_permission(struct kvm_vcpu *vcpu)
 	return 1;
 }
 
+static void vmx_disable_shadow_vmcs(struct vcpu_vmx *vmx)
+{
+	vmcs_clear_bits(SECONDARY_VM_EXEC_CONTROL, SECONDARY_EXEC_SHADOW_VMCS);
+	vmcs_write64(VMCS_LINK_POINTER, -1ull);
+}
+
 static inline void nested_release_vmcs12(struct vcpu_vmx *vmx)
 {
 	if (vmx->nested.current_vmptr == -1ull)
 		return;
 
-	/* current_vmptr and current_vmcs12 are always set/reset together */
-	if (WARN_ON(vmx->nested.current_vmcs12 == NULL))
-		return;
-
 	if (enable_shadow_vmcs) {
 		/* copy to memory all shadowed fields in case
 		   they were modified */
 		copy_shadow_to_vmcs12(vmx);
 		vmx->nested.sync_shadow_vmcs = false;
-		vmcs_clear_bits(SECONDARY_VM_EXEC_CONTROL,
-				SECONDARY_EXEC_SHADOW_VMCS);
-		vmcs_write64(VMCS_LINK_POINTER, -1ull);
+		vmx_disable_shadow_vmcs(vmx);
 	}
 	vmx->nested.posted_intr_nv = -1;
 
 	/* Flush VMCS12 to guest memory */
-	memcpy(vmx->nested.current_vmcs12, vmx->nested.cached_vmcs12,
-	       VMCS12_SIZE);
+	kvm_vcpu_write_guest_page(&vmx->vcpu,
+				  vmx->nested.current_vmptr >> PAGE_SHIFT,
+				  vmx->nested.cached_vmcs12, 0, VMCS12_SIZE);
 
-	kunmap(vmx->nested.current_vmcs12_page);
-	nested_release_page(vmx->nested.current_vmcs12_page);
 	vmx->nested.current_vmptr = -1ull;
-	vmx->nested.current_vmcs12 = NULL;
 }
 
 /*
@@ -7123,12 +7234,14 @@ static void free_nested(struct vcpu_vmx *vmx)
 
 	vmx->nested.vmxon = false;
 	free_vpid(vmx->nested.vpid02);
-	nested_release_vmcs12(vmx);
+	vmx->nested.posted_intr_nv = -1;
+	vmx->nested.current_vmptr = -1ull;
 	if (vmx->nested.msr_bitmap) {
 		free_page((unsigned long)vmx->nested.msr_bitmap);
 		vmx->nested.msr_bitmap = NULL;
 	}
 	if (enable_shadow_vmcs) {
+		vmx_disable_shadow_vmcs(vmx);
 		vmcs_clear(vmx->vmcs01.shadow_vmcs);
 		free_vmcs(vmx->vmcs01.shadow_vmcs);
 		vmx->vmcs01.shadow_vmcs = NULL;
@@ -7214,25 +7327,6 @@ static int handle_vmresume(struct kvm_vcpu *vcpu)
 	return nested_vmx_run(vcpu, false);
 }
 
-enum vmcs_field_type {
-	VMCS_FIELD_TYPE_U16 = 0,
-	VMCS_FIELD_TYPE_U64 = 1,
-	VMCS_FIELD_TYPE_U32 = 2,
-	VMCS_FIELD_TYPE_NATURAL_WIDTH = 3
-};
-
-static inline int vmcs_field_type(unsigned long field)
-{
-	if (0x1 & field)	/* the *_HIGH fields are all 32 bit */
-		return VMCS_FIELD_TYPE_U32;
-	return (field >> 13) & 0x3 ;
-}
-
-static inline int vmcs_field_readonly(unsigned long field)
-{
-	return (((field >> 10) & 0x3) == 1);
-}
-
 /*
  * Read a vmcs12 field. Since these can have varying lengths and we return
  * one type, we chose the biggest type (u64) and zero-extend the return value
@@ -7546,14 +7640,14 @@ static int handle_vmptrld(struct kvm_vcpu *vcpu)
 		}
 
 		nested_release_vmcs12(vmx);
-		vmx->nested.current_vmcs12 = new_vmcs12;
-		vmx->nested.current_vmcs12_page = page;
 		/*
 		 * Load VMCS12 from guest memory since it is not already
 		 * cached.
 		 */
-		memcpy(vmx->nested.cached_vmcs12,
-		       vmx->nested.current_vmcs12, VMCS12_SIZE);
+		memcpy(vmx->nested.cached_vmcs12, new_vmcs12, VMCS12_SIZE);
+		kunmap(page);
+		nested_release_page_clean(page);
+
 		set_current_vmptr(vmx, vmptr);
 	}
 
@@ -7986,12 +8080,11 @@ static bool nested_vmx_exit_handled_cr(struct kvm_vcpu *vcpu,
  * should handle it ourselves in L0 (and then continue L2). Only call this
  * when in is_guest_mode (L2).
  */
-static bool nested_vmx_exit_handled(struct kvm_vcpu *vcpu)
+static bool nested_vmx_exit_reflected(struct kvm_vcpu *vcpu, u32 exit_reason)
 {
 	u32 intr_info = vmcs_read32(VM_EXIT_INTR_INFO);
 	struct vcpu_vmx *vmx = to_vmx(vcpu);
 	struct vmcs12 *vmcs12 = get_vmcs12(vcpu);
-	u32 exit_reason = vmx->exit_reason;
 
 	trace_kvm_nested_vmexit(kvm_rip_read(vcpu), exit_reason,
 				vmcs_readl(EXIT_QUALIFICATION),
@@ -8000,6 +8093,18 @@ static bool nested_vmx_exit_handled(struct kvm_vcpu *vcpu)
 				vmcs_read32(VM_EXIT_INTR_ERROR_CODE),
 				KVM_ISA_VMX);
 
+	/*
+	 * The host physical addresses of some pages of guest memory
+	 * are loaded into VMCS02 (e.g. L1's Virtual APIC Page). The CPU
+	 * may write to these pages via their host physical address while
+	 * L2 is running, bypassing any address-translation-based dirty
+	 * tracking (e.g. EPT write protection).
+	 *
+	 * Mark them dirty on every exit from L2 to prevent them from
+	 * getting out of sync with dirty tracking.
+	 */
+	nested_mark_vmcs12_pages_dirty(vcpu);
+
 	if (vmx->nested.nested_run_pending)
 		return false;
 
@@ -8014,7 +8119,7 @@ static bool nested_vmx_exit_handled(struct kvm_vcpu *vcpu)
 		if (is_nmi(intr_info))
 			return false;
 		else if (is_page_fault(intr_info))
-			return enable_ept;
+			return !vmx->vcpu.arch.apf.host_apf_reason && enable_ept;
 		else if (is_no_device(intr_info) &&
 			 !(vmcs12->guest_cr0 & X86_CR0_TS))
 			return false;
@@ -8136,6 +8241,29 @@ static bool nested_vmx_exit_handled(struct kvm_vcpu *vcpu)
 	}
 }
 
+static int nested_vmx_reflect_vmexit(struct kvm_vcpu *vcpu, u32 exit_reason)
+{
+	u32 exit_intr_info = vmcs_read32(VM_EXIT_INTR_INFO);
+
+	/*
+	 * At this point, the exit interruption info in exit_intr_info
+	 * is only valid for EXCEPTION_NMI exits.  For EXTERNAL_INTERRUPT
+	 * we need to query the in-kernel LAPIC.
+	 */
+	WARN_ON(exit_reason == EXIT_REASON_EXTERNAL_INTERRUPT);
+	if ((exit_intr_info &
+	     (INTR_INFO_VALID_MASK | INTR_INFO_DELIVER_CODE_MASK)) ==
+	    (INTR_INFO_VALID_MASK | INTR_INFO_DELIVER_CODE_MASK)) {
+		struct vmcs12 *vmcs12 = get_vmcs12(vcpu);
+		vmcs12->vm_exit_intr_error_code =
+			vmcs_read32(VM_EXIT_INTR_ERROR_CODE);
+	}
+
+	nested_vmx_vmexit(vcpu, exit_reason, exit_intr_info,
+			  vmcs_readl(EXIT_QUALIFICATION));
+	return 1;
+}
+
 static void vmx_get_exit_info(struct kvm_vcpu *vcpu, u64 *info1, u64 *info2)
 {
 	*info1 = vmcs_readl(EXIT_QUALIFICATION);
@@ -8382,12 +8510,8 @@ static int vmx_handle_exit(struct kvm_vcpu *vcpu)
 	if (vmx->emulation_required)
 		return handle_invalid_guest_state(vcpu);
 
-	if (is_guest_mode(vcpu) && nested_vmx_exit_handled(vcpu)) {
-		nested_vmx_vmexit(vcpu, exit_reason,
-				  vmcs_read32(VM_EXIT_INTR_INFO),
-				  vmcs_readl(EXIT_QUALIFICATION));
-		return 1;
-	}
+	if (is_guest_mode(vcpu) && nested_vmx_exit_reflected(vcpu, exit_reason))
+		return nested_vmx_reflect_vmexit(vcpu, exit_reason);
 
 	if (exit_reason & VMX_EXIT_REASONS_FAILED_VMENTRY) {
 		dump_vmcs();
@@ -8418,9 +8542,15 @@ static int vmx_handle_exit(struct kvm_vcpu *vcpu)
 			exit_reason != EXIT_REASON_TASK_SWITCH)) {
 		vcpu->run->exit_reason = KVM_EXIT_INTERNAL_ERROR;
 		vcpu->run->internal.suberror = KVM_INTERNAL_ERROR_DELIVERY_EV;
-		vcpu->run->internal.ndata = 2;
+		vcpu->run->internal.ndata = 3;
 		vcpu->run->internal.data[0] = vectoring_info;
 		vcpu->run->internal.data[1] = exit_reason;
+		vcpu->run->internal.data[2] = vcpu->arch.exit_qualification;
+		if (exit_reason == EXIT_REASON_EPT_MISCONFIG) {
+			vcpu->run->internal.ndata++;
+			vcpu->run->internal.data[3] =
+				vmcs_read64(GUEST_PHYSICAL_ADDRESS);
+		}
 		return 0;
 	}
 
@@ -8611,17 +8741,24 @@ static void vmx_apicv_post_state_restore(struct kvm_vcpu *vcpu)
 
 static void vmx_complete_atomic_exit(struct vcpu_vmx *vmx)
 {
-	u32 exit_intr_info;
+	u32 exit_intr_info = 0;
+	u16 basic_exit_reason = (u16)vmx->exit_reason;
 
-	if (!(vmx->exit_reason == EXIT_REASON_MCE_DURING_VMENTRY
-	      || vmx->exit_reason == EXIT_REASON_EXCEPTION_NMI))
+	if (!(basic_exit_reason == EXIT_REASON_MCE_DURING_VMENTRY
+	      || basic_exit_reason == EXIT_REASON_EXCEPTION_NMI))
 		return;
 
-	vmx->exit_intr_info = vmcs_read32(VM_EXIT_INTR_INFO);
-	exit_intr_info = vmx->exit_intr_info;
+	if (!(vmx->exit_reason & VMX_EXIT_REASONS_FAILED_VMENTRY))
+		exit_intr_info = vmcs_read32(VM_EXIT_INTR_INFO);
+	vmx->exit_intr_info = exit_intr_info;
+
+	/* if exit due to PF check for async PF */
+	if (is_page_fault(exit_intr_info))
+		vmx->vcpu.arch.apf.host_apf_reason = kvm_read_and_reset_pf_reason();
 
 	/* Handle machine checks before interrupts are enabled */
-	if (is_machine_check(exit_intr_info))
+	if (basic_exit_reason == EXIT_REASON_MCE_DURING_VMENTRY ||
+	    is_machine_check(exit_intr_info))
 		kvm_machine_check();
 
 	/* We need to handle NMIs before interrupts are enabled */
@@ -8700,7 +8837,7 @@ static void vmx_recover_nmi_blocking(struct vcpu_vmx *vmx)
 
 	idtv_info_valid = vmx->idt_vectoring_info & VECTORING_INFO_VALID_MASK;
 
-	if (vmx->nmi_known_unmasked)
+	if (vmx->loaded_vmcs->nmi_known_unmasked)
 		return;
 	/*
 	 * Can't use vmx->exit_intr_info since we're not sure what
@@ -8724,7 +8861,7 @@ static void vmx_recover_nmi_blocking(struct vcpu_vmx *vmx)
 		vmcs_set_bits(GUEST_INTERRUPTIBILITY_INFO,
 			      GUEST_INTR_STATE_NMI);
 	else
-		vmx->nmi_known_unmasked =
+		vmx->loaded_vmcs->nmi_known_unmasked =
 			!(vmcs_read32(GUEST_INTERRUPTIBILITY_INFO)
 			  & GUEST_INTR_STATE_NMI);
 }
@@ -9177,7 +9314,6 @@ static struct kvm_vcpu *vmx_create_vcpu(struct kvm *kvm, unsigned int id)
 
 	vmx->nested.posted_intr_nv = -1;
 	vmx->nested.current_vmptr = -1ull;
-	vmx->nested.current_vmcs12 = NULL;
 
 	vmx->msr_ia32_feature_control_valid_bits = FEATURE_CONTROL_LOCKED;
 
@@ -9463,12 +9599,15 @@ static void vmx_inject_page_fault_nested(struct kvm_vcpu *vcpu,
 
 	WARN_ON(!is_guest_mode(vcpu));
 
-	if (nested_vmx_is_page_fault_vmexit(vmcs12, fault->error_code))
-		nested_vmx_vmexit(vcpu, to_vmx(vcpu)->exit_reason,
-				  vmcs_read32(VM_EXIT_INTR_INFO),
-				  vmcs_readl(EXIT_QUALIFICATION));
-	else
+	if (nested_vmx_is_page_fault_vmexit(vmcs12, fault->error_code)) {
+		vmcs12->vm_exit_intr_error_code = fault->error_code;
+		nested_vmx_vmexit(vcpu, EXIT_REASON_EXCEPTION_NMI,
+				  PF_VECTOR | INTR_TYPE_HARD_EXCEPTION |
+				  INTR_INFO_DELIVER_CODE_MASK | INTR_INFO_VALID_MASK,
+				  fault->address);
+	} else {
 		kvm_inject_page_fault(vcpu, fault);
+	}
 }
 
 static inline bool nested_vmx_merge_msr_bitmap(struct kvm_vcpu *vcpu,
@@ -9589,23 +9728,26 @@ static void vmx_start_preemption_timer(struct kvm_vcpu *vcpu)
 		      ns_to_ktime(preemption_timeout), HRTIMER_MODE_REL);
 }
 
+static int nested_vmx_check_io_bitmap_controls(struct kvm_vcpu *vcpu,
+					       struct vmcs12 *vmcs12)
+{
+	if (!nested_cpu_has(vmcs12, CPU_BASED_USE_IO_BITMAPS))
+		return 0;
+
+	if (!page_address_valid(vcpu, vmcs12->io_bitmap_a) ||
+	    !page_address_valid(vcpu, vmcs12->io_bitmap_b))
+		return -EINVAL;
+
+	return 0;
+}
+
 static int nested_vmx_check_msr_bitmap_controls(struct kvm_vcpu *vcpu,
 						struct vmcs12 *vmcs12)
 {
-	int maxphyaddr;
-	u64 addr;
-
 	if (!nested_cpu_has(vmcs12, CPU_BASED_USE_MSR_BITMAPS))
 		return 0;
 
-	if (vmcs12_read_any(vcpu, MSR_BITMAP, &addr)) {
-		WARN_ON(1);
-		return -EINVAL;
-	}
-	maxphyaddr = cpuid_maxphyaddr(vcpu);
-
-	if (!PAGE_ALIGNED(vmcs12->msr_bitmap) ||
-	   ((addr + PAGE_SIZE) >> maxphyaddr))
+	if (!page_address_valid(vcpu, vmcs12->msr_bitmap))
 		return -EINVAL;
 
 	return 0;
@@ -9993,6 +10135,8 @@ static int prepare_vmcs02(struct kvm_vcpu *vcpu, struct vmcs12 *vmcs12,
 			     vmcs12->vm_entry_instruction_len);
 		vmcs_write32(GUEST_INTERRUPTIBILITY_INFO,
 			     vmcs12->guest_interruptibility_info);
+		vmx->loaded_vmcs->nmi_known_unmasked =
+			!(vmcs12->guest_interruptibility_info & GUEST_INTR_STATE_NMI);
 	} else {
 		vmcs_write32(VM_ENTRY_INTR_INFO_FIELD, 0);
 	}
@@ -10017,13 +10161,9 @@ static int prepare_vmcs02(struct kvm_vcpu *vcpu, struct vmcs12 *vmcs12,
 
 	/* Posted interrupts setting is only taken from vmcs12.  */
 	if (nested_cpu_has_posted_intr(vmcs12)) {
-		/*
-		 * Note that we use L0's vector here and in
-		 * vmx_deliver_nested_posted_interrupt.
-		 */
 		vmx->nested.posted_intr_nv = vmcs12->posted_intr_nv;
 		vmx->nested.pi_pending = false;
-		vmcs_write16(POSTED_INTR_NV, POSTED_INTR_VECTOR);
+		vmcs_write16(POSTED_INTR_NV, POSTED_INTR_NESTED_VECTOR);
 	} else {
 		exec_control &= ~PIN_BASED_POSTED_INTR;
 	}
@@ -10047,12 +10187,6 @@ static int prepare_vmcs02(struct kvm_vcpu *vcpu, struct vmcs12 *vmcs12,
 	 * "or"ing of the EB of vmcs01 and vmcs12, because when enable_ept,
 	 * vmcs01's EB.PF is 0 so the "or" will take vmcs12's value, and when
 	 * !enable_ept, EB.PF is 1, so the "or" will always be 1.
-	 *
-	 * A problem with this approach (when !enable_ept) is that L1 may be
-	 * injected with more page faults than it asked for. This could have
-	 * caused problems, but in practice existing hypervisors don't care.
-	 * To fix this, we will need to emulate the PFEC checking (on the L1
-	 * page tables), using walk_addr(), when injecting PFs to L1.
 	 */
 	vmcs_write32(PAGE_FAULT_ERROR_CODE_MASK,
 		enable_ept ? vmcs12->page_fault_error_code_mask : 0);
@@ -10293,6 +10427,9 @@ static int check_vmentry_prereqs(struct kvm_vcpu *vcpu, struct vmcs12 *vmcs12)
 	    vmcs12->guest_activity_state != GUEST_ACTIVITY_HLT)
 		return VMXERR_ENTRY_INVALID_CONTROL_FIELD;
 
+	if (nested_vmx_check_io_bitmap_controls(vcpu, vmcs12))
+		return VMXERR_ENTRY_INVALID_CONTROL_FIELD;
+
 	if (nested_vmx_check_msr_bitmap_controls(vcpu, vmcs12))
 		return VMXERR_ENTRY_INVALID_CONTROL_FIELD;
 
@@ -10429,8 +10566,6 @@ static int enter_vmx_non_root_mode(struct kvm_vcpu *vcpu, bool from_vmentry)
 		return 1;
 	}
 
-	vmcs12->launch_state = 1;
-
 	/*
 	 * Note no nested_vmx_succeed or nested_vmx_fail here. At this point
 	 * we are no longer running L1, and VMLAUNCH/VMRESUME has not yet
@@ -10448,6 +10583,7 @@ static int nested_vmx_run(struct kvm_vcpu *vcpu, bool launch)
 {
 	struct vmcs12 *vmcs12;
 	struct vcpu_vmx *vmx = to_vmx(vcpu);
+	u32 interrupt_shadow = vmx_get_interrupt_shadow(vcpu);
 	u32 exit_qual;
 	int ret;
 
@@ -10472,6 +10608,12 @@ static int nested_vmx_run(struct kvm_vcpu *vcpu, bool launch)
 	 * for misconfigurations which will anyway be caught by the processor
 	 * when using the merged vmcs02.
 	 */
+	if (interrupt_shadow & KVM_X86_SHADOW_INT_MOV_SS) {
+		nested_vmx_failValid(vcpu,
+				     VMXERR_ENTRY_EVENTS_BLOCKED_BY_MOV_SS);
+		goto out;
+	}
+
 	if (vmcs12->launch_state == launch) {
 		nested_vmx_failValid(vcpu,
 			launch ? VMXERR_VMLAUNCH_NONCLEAR_VMCS
@@ -10792,18 +10934,15 @@ static void prepare_vmcs12(struct kvm_vcpu *vcpu, struct vmcs12 *vmcs12,
 
 	vmcs12->vm_exit_reason = exit_reason;
 	vmcs12->exit_qualification = exit_qualification;
-
 	vmcs12->vm_exit_intr_info = exit_intr_info;
-	if ((vmcs12->vm_exit_intr_info &
-	     (INTR_INFO_VALID_MASK | INTR_INFO_DELIVER_CODE_MASK)) ==
-	    (INTR_INFO_VALID_MASK | INTR_INFO_DELIVER_CODE_MASK))
-		vmcs12->vm_exit_intr_error_code =
-			vmcs_read32(VM_EXIT_INTR_ERROR_CODE);
+
 	vmcs12->idt_vectoring_info_field = 0;
 	vmcs12->vm_exit_instruction_len = vmcs_read32(VM_EXIT_INSTRUCTION_LEN);
 	vmcs12->vmx_instruction_info = vmcs_read32(VMX_INSTRUCTION_INFO);
 
 	if (!(vmcs12->vm_exit_reason & VMX_EXIT_REASONS_FAILED_VMENTRY)) {
+		vmcs12->launch_state = 1;
+
 		/* vm_entry_intr_info_field is cleared on exit. Emulate this
 		 * instead of reading the real value. */
 		vmcs12->vm_entry_intr_info_field &= ~INTR_INFO_VALID_MASK;
@@ -10884,7 +11023,9 @@ static void load_vmcs12_host_state(struct kvm_vcpu *vcpu,
 		 */
 		vmx_flush_tlb(vcpu);
 	}
-
+	/* Restore posted intr vector. */
+	if (nested_cpu_has_posted_intr(vmcs12))
+		vmcs_write16(POSTED_INTR_NV, POSTED_INTR_VECTOR);
 
 	vmcs_write32(GUEST_SYSENTER_CS, vmcs12->host_ia32_sysenter_cs);
 	vmcs_writel(GUEST_SYSENTER_ESP, vmcs12->host_ia32_sysenter_esp);
@@ -10990,8 +11131,15 @@ static void nested_vmx_vmexit(struct kvm_vcpu *vcpu, u32 exit_reason,
 
 	vmx_switch_vmcs(vcpu, &vmx->vmcs01);
 
-	if ((exit_reason == EXIT_REASON_EXTERNAL_INTERRUPT)
-	    && nested_exit_intr_ack_set(vcpu)) {
+	/*
+	 * TODO: SDM says that with acknowledge interrupt on exit, bit 31 of
+	 * the VM-exit interrupt information (valid interrupt) is always set to
+	 * 1 on EXIT_REASON_EXTERNAL_INTERRUPT, so we shouldn't need
+	 * kvm_cpu_has_interrupt().  See the commit message for details.
+	 */
+	if (nested_exit_intr_ack_set(vcpu) &&
+	    exit_reason == EXIT_REASON_EXTERNAL_INTERRUPT &&
+	    kvm_cpu_has_interrupt(vcpu)) {
 		int irq = kvm_cpu_get_interrupt(vcpu);
 		WARN_ON(irq < 0);
 		vmcs12->vm_exit_intr_info = irq |
diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c
index 6c7266f7766d..d734aa8c5b4f 100644
--- a/arch/x86/kvm/x86.c
+++ b/arch/x86/kvm/x86.c
@@ -134,8 +134,6 @@ module_param(lapic_timer_advance_ns, uint, S_IRUGO | S_IWUSR);
 static bool __read_mostly vector_hashing = true;
 module_param(vector_hashing, bool, S_IRUGO);
 
-static bool __read_mostly backwards_tsc_observed = false;
-
 #define KVM_NR_SHARED_MSRS 16
 
 struct kvm_shared_msrs_global {
@@ -452,7 +450,12 @@ EXPORT_SYMBOL_GPL(kvm_complete_insn_gp);
 void kvm_inject_page_fault(struct kvm_vcpu *vcpu, struct x86_exception *fault)
 {
 	++vcpu->stat.pf_guest;
-	vcpu->arch.cr2 = fault->address;
+	vcpu->arch.exception.nested_apf =
+		is_guest_mode(vcpu) && fault->async_page_fault;
+	if (vcpu->arch.exception.nested_apf)
+		vcpu->arch.apf.nested_apf_token = fault->address;
+	else
+		vcpu->arch.cr2 = fault->address;
 	kvm_queue_exception_e(vcpu, PF_VECTOR, fault->error_code);
 }
 EXPORT_SYMBOL_GPL(kvm_inject_page_fault);
@@ -594,8 +597,8 @@ bool pdptrs_changed(struct kvm_vcpu *vcpu)
 		      (unsigned long *)&vcpu->arch.regs_avail))
 		return true;
 
-	gfn = (kvm_read_cr3(vcpu) & ~31u) >> PAGE_SHIFT;
-	offset = (kvm_read_cr3(vcpu) & ~31u) & (PAGE_SIZE - 1);
+	gfn = (kvm_read_cr3(vcpu) & 0xffffffe0ul) >> PAGE_SHIFT;
+	offset = (kvm_read_cr3(vcpu) & 0xffffffe0ul) & (PAGE_SIZE - 1);
 	r = kvm_read_nested_guest_page(vcpu, gfn, pdpte, offset, sizeof(pdpte),
 				       PFERR_USER_MASK | PFERR_WRITE_MASK);
 	if (r < 0)
@@ -1719,7 +1722,7 @@ static void pvclock_update_vm_gtod_copy(struct kvm *kvm)
 					&ka->master_cycle_now);
 
 	ka->use_master_clock = host_tsc_clocksource && vcpus_matched
-				&& !backwards_tsc_observed
+				&& !ka->backwards_tsc_observed
 				&& !ka->boot_vcpu_runs_old_kvmclock;
 
 	if (ka->use_master_clock)
@@ -2060,8 +2063,8 @@ static int kvm_pv_enable_async_pf(struct kvm_vcpu *vcpu, u64 data)
 {
 	gpa_t gpa = data & ~0x3f;
 
-	/* Bits 2:5 are reserved, Should be zero */
-	if (data & 0x3c)
+	/* Bits 3:5 are reserved, Should be zero */
+	if (data & 0x38)
 		return 1;
 
 	vcpu->arch.apf.msr_val = data;
@@ -2077,6 +2080,7 @@ static int kvm_pv_enable_async_pf(struct kvm_vcpu *vcpu, u64 data)
 		return 1;
 
 	vcpu->arch.apf.send_user_only = !(data & KVM_ASYNC_PF_SEND_ALWAYS);
+	vcpu->arch.apf.delivery_as_pf_vmexit = data & KVM_ASYNC_PF_DELIVERY_AS_PF_VMEXIT;
 	kvm_async_pf_wakeup_all(vcpu);
 	return 0;
 }
@@ -2661,6 +2665,8 @@ int kvm_vm_ioctl_check_extension(struct kvm *kvm, long ext)
 	case KVM_CAP_HYPERV_VAPIC:
 	case KVM_CAP_HYPERV_SPIN:
 	case KVM_CAP_HYPERV_SYNIC:
+	case KVM_CAP_HYPERV_SYNIC2:
+	case KVM_CAP_HYPERV_VP_INDEX:
 	case KVM_CAP_PCI_SEGMENT:
 	case KVM_CAP_DEBUGREGS:
 	case KVM_CAP_X86_ROBUST_SINGLESTEP:
@@ -3153,15 +3159,18 @@ static int kvm_vcpu_ioctl_x86_set_vcpu_events(struct kvm_vcpu *vcpu,
 		kvm_set_hflags(vcpu, hflags);
 
 		vcpu->arch.smi_pending = events->smi.pending;
-		if (events->smi.smm_inside_nmi)
-			vcpu->arch.hflags |= HF_SMM_INSIDE_NMI_MASK;
-		else
-			vcpu->arch.hflags &= ~HF_SMM_INSIDE_NMI_MASK;
-		if (lapic_in_kernel(vcpu)) {
-			if (events->smi.latched_init)
-				set_bit(KVM_APIC_INIT, &vcpu->arch.apic->pending_events);
+
+		if (events->smi.smm) {
+			if (events->smi.smm_inside_nmi)
+				vcpu->arch.hflags |= HF_SMM_INSIDE_NMI_MASK;
 			else
-				clear_bit(KVM_APIC_INIT, &vcpu->arch.apic->pending_events);
+				vcpu->arch.hflags &= ~HF_SMM_INSIDE_NMI_MASK;
+			if (lapic_in_kernel(vcpu)) {
+				if (events->smi.latched_init)
+					set_bit(KVM_APIC_INIT, &vcpu->arch.apic->pending_events);
+				else
+					clear_bit(KVM_APIC_INIT, &vcpu->arch.apic->pending_events);
+			}
 		}
 	}
 
@@ -3384,10 +3393,14 @@ static int kvm_vcpu_ioctl_enable_cap(struct kvm_vcpu *vcpu,
 		return -EINVAL;
 
 	switch (cap->cap) {
+	case KVM_CAP_HYPERV_SYNIC2:
+		if (cap->args[0])
+			return -EINVAL;
 	case KVM_CAP_HYPERV_SYNIC:
 		if (!irqchip_in_kernel(vcpu->kvm))
 			return -EINVAL;
-		return kvm_hv_activate_synic(vcpu);
+		return kvm_hv_activate_synic(vcpu, cap->cap ==
+					     KVM_CAP_HYPERV_SYNIC2);
 	default:
 		return -EINVAL;
 	}
@@ -4188,9 +4201,15 @@ long kvm_arch_vm_ioctl(struct file *filp,
 			goto out;
 
 		r = 0;
+		/*
+		 * TODO: userspace has to take care of races with VCPU_RUN, so
+		 * kvm_gen_update_masterclock() can be cut down to locked
+		 * pvclock_update_vm_gtod_copy().
+		 */
+		kvm_gen_update_masterclock(kvm);
 		now_ns = get_kvmclock_ns(kvm);
 		kvm->arch.kvmclock_offset += user_ns.clock - now_ns;
-		kvm_gen_update_masterclock(kvm);
+		kvm_make_all_cpus_request(kvm, KVM_REQ_CLOCK_UPDATE);
 		break;
 	}
 	case KVM_GET_CLOCK: {
@@ -6199,6 +6218,7 @@ static void kvm_pv_kick_cpu_op(struct kvm *kvm, unsigned long flags, int apicid)
 
 	lapic_irq.shorthand = 0;
 	lapic_irq.dest_mode = 0;
+	lapic_irq.level = 0;
 	lapic_irq.dest_id = apicid;
 	lapic_irq.msi_redir_hint = false;
 
@@ -6347,10 +6367,7 @@ static int inject_pending_event(struct kvm_vcpu *vcpu, bool req_int_win)
 			kvm_update_dr7(vcpu);
 		}
 
-		kvm_x86_ops->queue_exception(vcpu, vcpu->arch.exception.nr,
-					  vcpu->arch.exception.has_error_code,
-					  vcpu->arch.exception.error_code,
-					  vcpu->arch.exception.reinject);
+		kvm_x86_ops->queue_exception(vcpu);
 		return 0;
 	}
 
@@ -7676,6 +7693,8 @@ void kvm_arch_vcpu_postcreate(struct kvm_vcpu *vcpu)
 	struct msr_data msr;
 	struct kvm *kvm = vcpu->kvm;
 
+	kvm_hv_vcpu_postcreate(vcpu);
+
 	if (vcpu_load(vcpu))
 		return;
 	msr.data = 0x0;
@@ -7829,8 +7848,8 @@ int kvm_arch_hardware_enable(void)
 	 */
 	if (backwards_tsc) {
 		u64 delta_cyc = max_tsc - local_tsc;
-		backwards_tsc_observed = true;
 		list_for_each_entry(kvm, &vm_list, vm_list) {
+			kvm->arch.backwards_tsc_observed = true;
 			kvm_for_each_vcpu(i, vcpu, kvm) {
 				vcpu->arch.tsc_offset_adjustment += delta_cyc;
 				vcpu->arch.last_host_tsc = local_tsc;
@@ -8576,6 +8595,7 @@ void kvm_arch_async_page_not_present(struct kvm_vcpu *vcpu,
 		fault.error_code = 0;
 		fault.nested_page_fault = false;
 		fault.address = work->arch.token;
+		fault.async_page_fault = true;
 		kvm_inject_page_fault(vcpu, &fault);
 	}
 }
@@ -8598,6 +8618,7 @@ void kvm_arch_async_page_present(struct kvm_vcpu *vcpu,
 		fault.error_code = 0;
 		fault.nested_page_fault = false;
 		fault.address = work->arch.token;
+		fault.async_page_fault = true;
 		kvm_inject_page_fault(vcpu, &fault);
 	}
 	vcpu->arch.apf.halted = false;
diff --git a/arch/x86/lib/memcpy_32.c b/arch/x86/lib/memcpy_32.c
index cad12634d6bd..2eab7d0bfedd 100644
--- a/arch/x86/lib/memcpy_32.c
+++ b/arch/x86/lib/memcpy_32.c
@@ -6,7 +6,7 @@
 
 __visible void *memcpy(void *to, const void *from, size_t n)
 {
-#ifdef CONFIG_X86_USE_3DNOW
+#if defined(CONFIG_X86_USE_3DNOW) && !defined(CONFIG_FORTIFY_SOURCE)
 	return __memcpy3d(to, from, n);
 #else
 	return __memcpy(to, from, n);
diff --git a/arch/x86/math-emu/Makefile b/arch/x86/math-emu/Makefile
index 9b0c63b60302..1b2dac174321 100644
--- a/arch/x86/math-emu/Makefile
+++ b/arch/x86/math-emu/Makefile
@@ -5,8 +5,8 @@
 #DEBUG	= -DDEBUGGING
 DEBUG	=
 PARANOID = -DPARANOID
-EXTRA_CFLAGS	:= $(PARANOID) $(DEBUG) -fno-builtin $(MATH_EMULATION)
-EXTRA_AFLAGS	:= $(PARANOID)
+ccflags-y += $(PARANOID) $(DEBUG) -fno-builtin $(MATH_EMULATION)
+asflags-y += $(PARANOID)
 
 # From 'C' language sources:
 C_OBJS =fpu_entry.o errors.o \
diff --git a/arch/x86/math-emu/fpu_emu.h b/arch/x86/math-emu/fpu_emu.h
index afbc4d805d66..c9c320dccca1 100644
--- a/arch/x86/math-emu/fpu_emu.h
+++ b/arch/x86/math-emu/fpu_emu.h
@@ -157,7 +157,7 @@ extern u_char const data_sizes_16[32];
 
 #define signbyte(a) (((u_char *)(a))[9])
 #define getsign(a) (signbyte(a) & 0x80)
-#define setsign(a,b) { if (b) signbyte(a) |= 0x80; else signbyte(a) &= 0x7f; }
+#define setsign(a,b) { if ((b) != 0) signbyte(a) |= 0x80; else signbyte(a) &= 0x7f; }
 #define copysign(a,b) { if (getsign(a)) signbyte(b) |= 0x80; \
                         else signbyte(b) &= 0x7f; }
 #define changesign(a) { signbyte(a) ^= 0x80; }
diff --git a/arch/x86/math-emu/reg_compare.c b/arch/x86/math-emu/reg_compare.c
index b77360fdbf4a..19b33b50adfa 100644
--- a/arch/x86/math-emu/reg_compare.c
+++ b/arch/x86/math-emu/reg_compare.c
@@ -168,7 +168,7 @@ static int compare(FPU_REG const *b, int tagb)
 /* This function requires that st(0) is not empty */
 int FPU_compare_st_data(FPU_REG const *loaded_data, u_char loaded_tag)
 {
-	int f = 0, c;
+	int f, c;
 
 	c = compare(loaded_data, loaded_tag);
 
@@ -189,12 +189,12 @@ int FPU_compare_st_data(FPU_REG const *loaded_data, u_char loaded_tag)
 		case COMP_No_Comp:
 			f = SW_C3 | SW_C2 | SW_C0;
 			break;
-#ifdef PARANOID
 		default:
+#ifdef PARANOID
 			EXCEPTION(EX_INTERNAL | 0x121);
+#endif /* PARANOID */
 			f = SW_C3 | SW_C2 | SW_C0;
 			break;
-#endif /* PARANOID */
 		}
 	setcc(f);
 	if (c & COMP_Denormal) {
@@ -205,7 +205,7 @@ int FPU_compare_st_data(FPU_REG const *loaded_data, u_char loaded_tag)
 
 static int compare_st_st(int nr)
 {
-	int f = 0, c;
+	int f, c;
 	FPU_REG *st_ptr;
 
 	if (!NOT_EMPTY(0) || !NOT_EMPTY(nr)) {
@@ -235,12 +235,12 @@ static int compare_st_st(int nr)
 		case COMP_No_Comp:
 			f = SW_C3 | SW_C2 | SW_C0;
 			break;
-#ifdef PARANOID
 		default:
+#ifdef PARANOID
 			EXCEPTION(EX_INTERNAL | 0x122);
+#endif /* PARANOID */
 			f = SW_C3 | SW_C2 | SW_C0;
 			break;
-#endif /* PARANOID */
 		}
 	setcc(f);
 	if (c & COMP_Denormal) {
@@ -283,12 +283,12 @@ static int compare_i_st_st(int nr)
 	case COMP_No_Comp:
 		f = X86_EFLAGS_ZF | X86_EFLAGS_PF | X86_EFLAGS_CF;
 		break;
-#ifdef PARANOID
 	default:
+#ifdef PARANOID
 		EXCEPTION(EX_INTERNAL | 0x122);
+#endif /* PARANOID */
 		f = 0;
 		break;
-#endif /* PARANOID */
 	}
 	FPU_EFLAGS = (FPU_EFLAGS & ~(X86_EFLAGS_ZF | X86_EFLAGS_PF | X86_EFLAGS_CF)) | f;
 	if (c & COMP_Denormal) {
diff --git a/arch/x86/mm/init.c b/arch/x86/mm/init.c
index 673541eb3b3f..bf3f1065d6ad 100644
--- a/arch/x86/mm/init.c
+++ b/arch/x86/mm/init.c
@@ -18,6 +18,7 @@
 #include <asm/dma.h>		/* for MAX_DMA_PFN */
 #include <asm/microcode.h>
 #include <asm/kaslr.h>
+#include <asm/hypervisor.h>
 
 /*
  * We need to define the tracepoints somewhere, and tlb.c
@@ -636,6 +637,8 @@ void __init init_mem_mapping(void)
 	load_cr3(swapper_pg_dir);
 	__flush_tlb_all();
 
+	hypervisor_init_mem_mapping();
+
 	early_memtest(0, max_pfn_mapped << PAGE_SHIFT);
 }
 
diff --git a/arch/x86/mm/mmap.c b/arch/x86/mm/mmap.c
index 797295e792b2..a88cfbfbd078 100644
--- a/arch/x86/mm/mmap.c
+++ b/arch/x86/mm/mmap.c
@@ -50,8 +50,7 @@ unsigned long tasksize_64bit(void)
 static unsigned long stack_maxrandom_size(unsigned long task_size)
 {
 	unsigned long max = 0;
-	if ((current->flags & PF_RANDOMIZE) &&
-		!(current->personality & ADDR_NO_RANDOMIZE)) {
+	if (current->flags & PF_RANDOMIZE) {
 		max = (-1UL) & __STACK_RND_MASK(task_size == tasksize_32bit());
 		max <<= PAGE_SHIFT;
 	}
@@ -79,26 +78,31 @@ static int mmap_is_legacy(void)
 
 static unsigned long arch_rnd(unsigned int rndbits)
 {
+	if (!(current->flags & PF_RANDOMIZE))
+		return 0;
 	return (get_random_long() & ((1UL << rndbits) - 1)) << PAGE_SHIFT;
 }
 
 unsigned long arch_mmap_rnd(void)
 {
-	if (!(current->flags & PF_RANDOMIZE))
-		return 0;
 	return arch_rnd(mmap_is_ia32() ? mmap32_rnd_bits : mmap64_rnd_bits);
 }
 
 static unsigned long mmap_base(unsigned long rnd, unsigned long task_size)
 {
 	unsigned long gap = rlimit(RLIMIT_STACK);
+	unsigned long pad = stack_maxrandom_size(task_size) + stack_guard_gap;
 	unsigned long gap_min, gap_max;
 
+	/* Values close to RLIM_INFINITY can overflow. */
+	if (gap + pad > gap)
+		gap += pad;
+
 	/*
 	 * Top of mmap area (just below the process stack).
 	 * Leave an at least ~128 MB hole with possible stack randomization.
 	 */
-	gap_min = SIZE_128M + stack_maxrandom_size(task_size);
+	gap_min = SIZE_128M;
 	gap_max = (task_size / 6) * 5;
 
 	if (gap < gap_min)
diff --git a/arch/x86/platform/intel-mid/device_libs/platform_max7315.c b/arch/x86/platform/intel-mid/device_libs/platform_max7315.c
index 6e075afa7877..58337b2bc682 100644
--- a/arch/x86/platform/intel-mid/device_libs/platform_max7315.c
+++ b/arch/x86/platform/intel-mid/device_libs/platform_max7315.c
@@ -38,8 +38,10 @@ static void __init *max7315_platform_data(void *info)
 	 */
 	strcpy(i2c_info->type, "max7315");
 	if (nr++) {
-		sprintf(base_pin_name, "max7315_%d_base", nr);
-		sprintf(intr_pin_name, "max7315_%d_int", nr);
+		snprintf(base_pin_name, sizeof(base_pin_name),
+			 "max7315_%d_base", nr);
+		snprintf(intr_pin_name, sizeof(intr_pin_name),
+			 "max7315_%d_int", nr);
 	} else {
 		strcpy(base_pin_name, "max7315_base");
 		strcpy(intr_pin_name, "max7315_int");
diff --git a/arch/x86/platform/uv/tlb_uv.c b/arch/x86/platform/uv/tlb_uv.c
index d4a61ddf9e62..f44c0bc95aa2 100644
--- a/arch/x86/platform/uv/tlb_uv.c
+++ b/arch/x86/platform/uv/tlb_uv.c
@@ -26,7 +26,7 @@
 static struct bau_operations ops __ro_after_init;
 
 /* timeouts in nanoseconds (indexed by UVH_AGING_PRESCALE_SEL urgency7 30:28) */
-static int timeout_base_ns[] = {
+static const int timeout_base_ns[] = {
 		20,
 		160,
 		1280,
@@ -40,7 +40,6 @@ static int timeout_base_ns[] = {
 static int timeout_us;
 static bool nobau = true;
 static int nobau_perm;
-static cycles_t congested_cycles;
 
 /* tunables: */
 static int max_concurr		= MAX_BAU_CONCURRENT;
@@ -829,10 +828,10 @@ static void record_send_stats(cycles_t time1, cycles_t time2,
 		if ((completion_status == FLUSH_COMPLETE) && (try == 1)) {
 			bcp->period_requests++;
 			bcp->period_time += elapsed;
-			if ((elapsed > congested_cycles) &&
+			if ((elapsed > usec_2_cycles(bcp->cong_response_us)) &&
 			    (bcp->period_requests > bcp->cong_reps) &&
 			    ((bcp->period_time / bcp->period_requests) >
-							congested_cycles)) {
+					usec_2_cycles(bcp->cong_response_us))) {
 				stat->s_congested++;
 				disable_for_period(bcp, stat);
 			}
@@ -1217,7 +1216,7 @@ static struct bau_pq_entry *find_another_by_swack(struct bau_pq_entry *msg,
  * set a bit in the UVH_LB_BAU_INTD_SOFTWARE_ACKNOWLEDGE register.
  * Such a message must be ignored.
  */
-void process_uv2_message(struct msg_desc *mdp, struct bau_control *bcp)
+static void process_uv2_message(struct msg_desc *mdp, struct bau_control *bcp)
 {
 	unsigned long mmr_image;
 	unsigned char swack_vec;
@@ -2222,14 +2221,17 @@ static int __init uv_bau_init(void)
 	else if (is_uv1_hub())
 		ops = uv1_bau_ops;
 
+	nuvhubs = uv_num_possible_blades();
+	if (nuvhubs < 2) {
+		pr_crit("UV: BAU disabled - insufficient hub count\n");
+		goto err_bau_disable;
+	}
+
 	for_each_possible_cpu(cur_cpu) {
 		mask = &per_cpu(uv_flush_tlb_mask, cur_cpu);
 		zalloc_cpumask_var_node(mask, GFP_KERNEL, cpu_to_node(cur_cpu));
 	}
 
-	nuvhubs = uv_num_possible_blades();
-	congested_cycles = usec_2_cycles(congested_respns_us);
-
 	uv_base_pnode = 0x7fffffff;
 	for (uvhub = 0; uvhub < nuvhubs; uvhub++) {
 		cpus = uv_blade_nr_possible_cpus(uvhub);
@@ -2242,9 +2244,8 @@ static int __init uv_bau_init(void)
 		enable_timeouts();
 
 	if (init_per_cpu(nuvhubs, uv_base_pnode)) {
-		set_bau_off();
-		nobau_perm = 1;
-		return 0;
+		pr_crit("UV: BAU disabled - per CPU init failed\n");
+		goto err_bau_disable;
 	}
 
 	vector = UV_BAU_MESSAGE;
@@ -2270,6 +2271,16 @@ static int __init uv_bau_init(void)
 	}
 
 	return 0;
+
+err_bau_disable:
+
+	for_each_possible_cpu(cur_cpu)
+		free_cpumask_var(per_cpu(uv_flush_tlb_mask, cur_cpu));
+
+	set_bau_off();
+	nobau_perm = 1;
+
+	return -EINVAL;
 }
 core_initcall(uv_bau_init);
 fs_initcall(uv_ptc_init);
diff --git a/arch/x86/um/os-Linux/registers.c b/arch/x86/um/os-Linux/registers.c
index 00f54a91bb4b..28775f55bde2 100644
--- a/arch/x86/um/os-Linux/registers.c
+++ b/arch/x86/um/os-Linux/registers.c
@@ -26,6 +26,7 @@ int save_i387_registers(int pid, unsigned long *fp_regs)
 
 int save_fp_registers(int pid, unsigned long *fp_regs)
 {
+#ifdef PTRACE_GETREGSET
 	struct iovec iov;
 
 	if (have_xstate_support) {
@@ -34,9 +35,9 @@ int save_fp_registers(int pid, unsigned long *fp_regs)
 		if (ptrace(PTRACE_GETREGSET, pid, NT_X86_XSTATE, &iov) < 0)
 			return -errno;
 		return 0;
-	} else {
+	} else
+#endif
 		return save_i387_registers(pid, fp_regs);
-	}
 }
 
 int restore_i387_registers(int pid, unsigned long *fp_regs)
@@ -48,6 +49,7 @@ int restore_i387_registers(int pid, unsigned long *fp_regs)
 
 int restore_fp_registers(int pid, unsigned long *fp_regs)
 {
+#ifdef PTRACE_SETREGSET
 	struct iovec iov;
 
 	if (have_xstate_support) {
@@ -56,9 +58,9 @@ int restore_fp_registers(int pid, unsigned long *fp_regs)
 		if (ptrace(PTRACE_SETREGSET, pid, NT_X86_XSTATE, &iov) < 0)
 			return -errno;
 		return 0;
-	} else {
+	} else
+#endif
 		return restore_i387_registers(pid, fp_regs);
-	}
 }
 
 #ifdef __i386__
@@ -122,6 +124,7 @@ int put_fp_registers(int pid, unsigned long *regs)
 
 void arch_init_registers(int pid)
 {
+#ifdef PTRACE_GETREGSET
 	struct _xstate fp_regs;
 	struct iovec iov;
 
@@ -129,6 +132,7 @@ void arch_init_registers(int pid)
 	iov.iov_len = sizeof(struct _xstate);
 	if (ptrace(PTRACE_GETREGSET, pid, NT_X86_XSTATE, &iov) == 0)
 		have_xstate_support = 1;
+#endif
 }
 #endif
 
diff --git a/arch/x86/um/setjmp_32.S b/arch/x86/um/setjmp_32.S
index b766792c9933..39053192918d 100644
--- a/arch/x86/um/setjmp_32.S
+++ b/arch/x86/um/setjmp_32.S
@@ -16,9 +16,9 @@
 
 	.text
 	.align 4
-	.globl setjmp
-	.type setjmp, @function
-setjmp:
+	.globl kernel_setjmp
+	.type kernel_setjmp, @function
+kernel_setjmp:
 #ifdef _REGPARM
 	movl %eax,%edx
 #else
@@ -35,13 +35,13 @@ setjmp:
 	movl %ecx,20(%edx)		# Return address
 	ret
 
-	.size setjmp,.-setjmp
+	.size kernel_setjmp,.-kernel_setjmp
 
 	.text
 	.align 4
-	.globl longjmp
-	.type longjmp, @function
-longjmp:
+	.globl kernel_longjmp
+	.type kernel_longjmp, @function
+kernel_longjmp:
 #ifdef _REGPARM
 	xchgl %eax,%edx
 #else
@@ -55,4 +55,4 @@ longjmp:
 	movl 16(%edx),%edi
 	jmp *20(%edx)
 
-	.size longjmp,.-longjmp
+	.size kernel_longjmp,.-kernel_longjmp
diff --git a/arch/x86/um/setjmp_64.S b/arch/x86/um/setjmp_64.S
index 45f547b4043e..c56942e1a38c 100644
--- a/arch/x86/um/setjmp_64.S
+++ b/arch/x86/um/setjmp_64.S
@@ -18,9 +18,9 @@
 
 	.text
 	.align 4
-	.globl setjmp
-	.type setjmp, @function
-setjmp:
+	.globl kernel_setjmp
+	.type kernel_setjmp, @function
+kernel_setjmp:
 	pop  %rsi			# Return address, and adjust the stack
 	xorl %eax,%eax			# Return value
 	movq %rbx,(%rdi)
@@ -34,13 +34,13 @@ setjmp:
 	movq %rsi,56(%rdi)		# Return address
 	ret
 
-	.size setjmp,.-setjmp
+	.size kernel_setjmp,.-kernel_setjmp
 
 	.text
 	.align 4
-	.globl longjmp
-	.type longjmp, @function
-longjmp:
+	.globl kernel_longjmp
+	.type kernel_longjmp, @function
+kernel_longjmp:
 	movl %esi,%eax			# Return value (int)
 	movq (%rdi),%rbx
 	movq 8(%rdi),%rsp
@@ -51,4 +51,4 @@ longjmp:
 	movq 48(%rdi),%r15
 	jmp *56(%rdi)
 
-	.size longjmp,.-longjmp
+	.size kernel_longjmp,.-kernel_longjmp
diff --git a/arch/x86/um/user-offsets.c b/arch/x86/um/user-offsets.c
index cb3c22370cf5..ae4cd58c0c7a 100644
--- a/arch/x86/um/user-offsets.c
+++ b/arch/x86/um/user-offsets.c
@@ -5,7 +5,7 @@
 #include <sys/mman.h>
 #include <sys/user.h>
 #define __FRAME_OFFSETS
-#include <asm/ptrace.h>
+#include <linux/ptrace.h>
 #include <asm/types.h>
 
 #ifdef __i386__
@@ -50,7 +50,11 @@ void foo(void)
 	DEFINE(HOST_GS, GS);
 	DEFINE(HOST_ORIG_AX, ORIG_EAX);
 #else
+#if defined(PTRACE_GETREGSET) && defined(PTRACE_SETREGSET)
 	DEFINE(HOST_FP_SIZE, sizeof(struct _xstate) / sizeof(unsigned long));
+#else
+	DEFINE(HOST_FP_SIZE, sizeof(struct _fpstate) / sizeof(unsigned long));
+#endif
 	DEFINE_LONGS(HOST_BX, RBX);
 	DEFINE_LONGS(HOST_CX, RCX);
 	DEFINE_LONGS(HOST_DI, RDI);
diff --git a/arch/x86/xen/enlighten_hvm.c b/arch/x86/xen/enlighten_hvm.c
index 87d791356ea9..de503c225ae1 100644
--- a/arch/x86/xen/enlighten_hvm.c
+++ b/arch/x86/xen/enlighten_hvm.c
@@ -12,6 +12,7 @@
 #include <asm/setup.h>
 #include <asm/hypervisor.h>
 #include <asm/e820/api.h>
+#include <asm/early_ioremap.h>
 
 #include <asm/xen/cpuid.h>
 #include <asm/xen/hypervisor.h>
@@ -21,38 +22,50 @@
 #include "mmu.h"
 #include "smp.h"
 
-void __ref xen_hvm_init_shared_info(void)
+static unsigned long shared_info_pfn;
+
+void xen_hvm_init_shared_info(void)
 {
 	struct xen_add_to_physmap xatp;
-	u64 pa;
-
-	if (HYPERVISOR_shared_info == &xen_dummy_shared_info) {
-		/*
-		 * Search for a free page starting at 4kB physical address.
-		 * Low memory is preferred to avoid an EPT large page split up
-		 * by the mapping.
-		 * Starting below X86_RESERVE_LOW (usually 64kB) is fine as
-		 * the BIOS used for HVM guests is well behaved and won't
-		 * clobber memory other than the first 4kB.
-		 */
-		for (pa = PAGE_SIZE;
-		     !e820__mapped_all(pa, pa + PAGE_SIZE, E820_TYPE_RAM) ||
-		     memblock_is_reserved(pa);
-		     pa += PAGE_SIZE)
-			;
-
-		memblock_reserve(pa, PAGE_SIZE);
-		HYPERVISOR_shared_info = __va(pa);
-	}
 
 	xatp.domid = DOMID_SELF;
 	xatp.idx = 0;
 	xatp.space = XENMAPSPACE_shared_info;
-	xatp.gpfn = virt_to_pfn(HYPERVISOR_shared_info);
+	xatp.gpfn = shared_info_pfn;
 	if (HYPERVISOR_memory_op(XENMEM_add_to_physmap, &xatp))
 		BUG();
 }
 
+static void __init reserve_shared_info(void)
+{
+	u64 pa;
+
+	/*
+	 * Search for a free page starting at 4kB physical address.
+	 * Low memory is preferred to avoid an EPT large page split up
+	 * by the mapping.
+	 * Starting below X86_RESERVE_LOW (usually 64kB) is fine as
+	 * the BIOS used for HVM guests is well behaved and won't
+	 * clobber memory other than the first 4kB.
+	 */
+	for (pa = PAGE_SIZE;
+	     !e820__mapped_all(pa, pa + PAGE_SIZE, E820_TYPE_RAM) ||
+	     memblock_is_reserved(pa);
+	     pa += PAGE_SIZE)
+		;
+
+	shared_info_pfn = PHYS_PFN(pa);
+
+	memblock_reserve(pa, PAGE_SIZE);
+	HYPERVISOR_shared_info = early_memremap(pa, PAGE_SIZE);
+}
+
+static void __init xen_hvm_init_mem_mapping(void)
+{
+	early_memunmap(HYPERVISOR_shared_info, PAGE_SIZE);
+	HYPERVISOR_shared_info = __va(PFN_PHYS(shared_info_pfn));
+}
+
 static void __init init_hvm_pv_info(void)
 {
 	int major, minor;
@@ -153,6 +166,7 @@ static void __init xen_hvm_guest_init(void)
 
 	init_hvm_pv_info();
 
+	reserve_shared_info();
 	xen_hvm_init_shared_info();
 
 	/*
@@ -218,5 +232,6 @@ const struct hypervisor_x86 x86_hyper_xen_hvm = {
 	.init_platform          = xen_hvm_guest_init,
 	.pin_vcpu               = xen_pin_vcpu,
 	.x2apic_available       = xen_x2apic_para_available,
+	.init_mem_mapping	= xen_hvm_init_mem_mapping,
 };
 EXPORT_SYMBOL(x86_hyper_xen_hvm);
diff --git a/arch/x86/xen/mmu_pv.c b/arch/x86/xen/mmu_pv.c
index 1d7a7213a310..cab28cf2cffb 100644
--- a/arch/x86/xen/mmu_pv.c
+++ b/arch/x86/xen/mmu_pv.c
@@ -2693,8 +2693,8 @@ EXPORT_SYMBOL_GPL(xen_destroy_contiguous_region);
 phys_addr_t paddr_vmcoreinfo_note(void)
 {
 	if (xen_pv_domain())
-		return virt_to_machine(&vmcoreinfo_note).maddr;
+		return virt_to_machine(vmcoreinfo_note).maddr;
 	else
-		return __pa_symbol(&vmcoreinfo_note);
+		return __pa(vmcoreinfo_note);
 }
 #endif /* CONFIG_KEXEC_CORE */
diff --git a/arch/x86/xen/smp_pv.c b/arch/x86/xen/smp_pv.c
index 1ea598e5f030..51471408fdd1 100644
--- a/arch/x86/xen/smp_pv.c
+++ b/arch/x86/xen/smp_pv.c
@@ -19,6 +19,7 @@
 #include <linux/irq_work.h>
 #include <linux/tick.h>
 #include <linux/nmi.h>
+#include <linux/cpuhotplug.h>
 
 #include <asm/paravirt.h>
 #include <asm/desc.h>
@@ -413,7 +414,7 @@ static void xen_pv_play_dead(void) /* used only with HOTPLUG_CPU */
 	 */
 	tick_nohz_idle_enter();
 
-	cpu_startup_entry(CPUHP_AP_ONLINE_IDLE);
+	cpuhp_online_idle(CPUHP_AP_ONLINE_IDLE);
 }
 
 #else /* !CONFIG_HOTPLUG_CPU */
diff --git a/arch/x86/xen/time.c b/arch/x86/xen/time.c
index a1895a8e85c1..1ecb05db3632 100644
--- a/arch/x86/xen/time.c
+++ b/arch/x86/xen/time.c
@@ -309,7 +309,6 @@ static irqreturn_t xen_timer_interrupt(int irq, void *dev_id)
 void xen_teardown_timer(int cpu)
 {
 	struct clock_event_device *evt;
-	BUG_ON(cpu == 0);
 	evt = &per_cpu(xen_clock_events, cpu).evt;
 
 	if (evt->irq >= 0) {
diff --git a/arch/xtensa/include/asm/Kbuild b/arch/xtensa/include/asm/Kbuild
index 30f6290109d4..dff7cc39437c 100644
--- a/arch/xtensa/include/asm/Kbuild
+++ b/arch/xtensa/include/asm/Kbuild
@@ -1,34 +1,29 @@
-generic-y += bitsperlong.h
 generic-y += bug.h
 generic-y += clkdev.h
+generic-y += device.h
 generic-y += div64.h
 generic-y += dma-contiguous.h
 generic-y += emergency-restart.h
-generic-y += errno.h
 generic-y += exec.h
 generic-y += extable.h
-generic-y += fcntl.h
+generic-y += fb.h
 generic-y += hardirq.h
-generic-y += ioctl.h
 generic-y += irq_regs.h
 generic-y += irq_work.h
 generic-y += kdebug.h
 generic-y += kmap_types.h
-generic-y += kvm_para.h
+generic-y += kprobes.h
 generic-y += linkage.h
 generic-y += local.h
 generic-y += local64.h
 generic-y += mcs_spinlock.h
 generic-y += mm-arch-hooks.h
+generic-y += param.h
 generic-y += percpu.h
 generic-y += preempt.h
-generic-y += resource.h
 generic-y += rwsem.h
 generic-y += sections.h
-generic-y += statfs.h
-generic-y += termios.h
 generic-y += topology.h
 generic-y += trace_clock.h
 generic-y += word-at-a-time.h
 generic-y += xor.h
-generic-y += kprobes.h
diff --git a/arch/xtensa/include/asm/device.h b/arch/xtensa/include/asm/device.h
deleted file mode 100644
index 1deeb8ebbb1b..000000000000
--- a/arch/xtensa/include/asm/device.h
+++ /dev/null
@@ -1,15 +0,0 @@
-/*
- * Arch specific extensions to struct device
- *
- * This file is released under the GPLv2
- */
-#ifndef _ASM_XTENSA_DEVICE_H
-#define _ASM_XTENSA_DEVICE_H
-
-struct dev_archdata {
-};
-
-struct pdev_archdata {
-};
-
-#endif /* _ASM_XTENSA_DEVICE_H */
diff --git a/arch/xtensa/include/asm/fb.h b/arch/xtensa/include/asm/fb.h
deleted file mode 100644
index c7df38030992..000000000000
--- a/arch/xtensa/include/asm/fb.h
+++ /dev/null
@@ -1,12 +0,0 @@
-#ifndef _ASM_FB_H_
-#define _ASM_FB_H_
-#include <linux/fb.h>
-
-#define fb_pgprotect(...) do {} while (0)
-
-static inline int fb_is_primary_device(struct fb_info *info)
-{
-	return 0;
-}
-
-#endif /* _ASM_FB_H_ */
diff --git a/arch/xtensa/include/asm/flat.h b/arch/xtensa/include/asm/flat.h
index 94c44abf15e4..60e0d6a45795 100644
--- a/arch/xtensa/include/asm/flat.h
+++ b/arch/xtensa/include/asm/flat.h
@@ -1,11 +1,22 @@
 #ifndef __ASM_XTENSA_FLAT_H
 #define __ASM_XTENSA_FLAT_H
 
+#include <asm/unaligned.h>
+
 #define flat_argvp_envp_on_stack()			0
 #define flat_old_ram_flag(flags)			(flags)
 #define flat_reloc_valid(reloc, size)			((reloc) <= (size))
-#define flat_get_addr_from_rp(rp, relval, flags, p)	get_unaligned(rp)
-#define flat_put_addr_at_rp(rp, val, relval	)	put_unaligned(val, rp)
+static inline int flat_get_addr_from_rp(u32 __user *rp, u32 relval, u32 flags,
+					u32 *addr, u32 *persistent)
+{
+	*addr = get_unaligned((__force u32 *)rp);
+	return 0;
+}
+static inline int flat_put_addr_at_rp(u32 __user *rp, u32 addr, u32 rel)
+{
+	put_unaligned(addr, (__force u32 *)rp);
+	return 0;
+}
 #define flat_get_relocate_addr(rel)			(rel)
 #define flat_set_persistent(relval, p)			0
 
diff --git a/arch/xtensa/include/asm/param.h b/arch/xtensa/include/asm/param.h
deleted file mode 100644
index 0a70e780ef2a..000000000000
--- a/arch/xtensa/include/asm/param.h
+++ /dev/null
@@ -1,18 +0,0 @@
-/*
- * include/asm-xtensa/param.h
- *
- * This file is subject to the terms and conditions of the GNU General Public
- * License.  See the file "COPYING" in the main directory of this archive
- * for more details.
- *
- * Copyright (C) 2001 - 2005 Tensilica Inc.
- */
-#ifndef _XTENSA_PARAM_H
-#define _XTENSA_PARAM_H
-
-#include <uapi/asm/param.h>
-
-# define HZ		CONFIG_HZ	/* internal timer frequency */
-# define USER_HZ	100		/* for user interfaces in "ticks" */
-# define CLOCKS_PER_SEC (USER_HZ)	/* frequnzy at which times() counts */
-#endif /* _XTENSA_PARAM_H */
diff --git a/arch/xtensa/include/uapi/asm/Kbuild b/arch/xtensa/include/uapi/asm/Kbuild
index 4cb0d2f8868c..a5bcdfb890f1 100644
--- a/arch/xtensa/include/uapi/asm/Kbuild
+++ b/arch/xtensa/include/uapi/asm/Kbuild
@@ -1,3 +1,12 @@
 # UAPI Header export list
 include include/uapi/asm-generic/Kbuild.asm
+
+generic-y += bitsperlong.h
+generic-y += errno.h
+generic-y += fcntl.h
+generic-y += ioctl.h
+generic-y += kvm_para.h
+generic-y += resource.h
 generic-y += siginfo.h
+generic-y += statfs.h
+generic-y += termios.h
diff --git a/arch/xtensa/include/uapi/asm/ioctls.h b/arch/xtensa/include/uapi/asm/ioctls.h
index 98b004e24e85..47d82c09be7b 100644
--- a/arch/xtensa/include/uapi/asm/ioctls.h
+++ b/arch/xtensa/include/uapi/asm/ioctls.h
@@ -105,7 +105,7 @@
 #define TIOCGPKT	_IOR('T', 0x38, int) /* Get packet mode state */
 #define TIOCGPTLCK	_IOR('T', 0x39, int) /* Get Pty lock state */
 #define TIOCGEXCL	_IOR('T', 0x40, int) /* Get exclusive mode state */
-#define TIOCGPTPEER	_IOR('T', 0x41, int) /* Safely open the slave */
+#define TIOCGPTPEER	_IO('T', 0x41) /* Safely open the slave */
 
 #define TIOCSERCONFIG	_IO('T', 83)
 #define TIOCSERGWILD	_IOR('T', 84,  int)
diff --git a/arch/xtensa/kernel/xtensa_ksyms.c b/arch/xtensa/kernel/xtensa_ksyms.c
index d159e9b9c018..672391003e40 100644
--- a/arch/xtensa/kernel/xtensa_ksyms.c
+++ b/arch/xtensa/kernel/xtensa_ksyms.c
@@ -94,13 +94,11 @@ unsigned long __sync_fetch_and_or_4(unsigned long *p, unsigned long v)
 }
 EXPORT_SYMBOL(__sync_fetch_and_or_4);
 
-#ifdef CONFIG_NET
 /*
  * Networking support
  */
 EXPORT_SYMBOL(csum_partial);
 EXPORT_SYMBOL(csum_partial_copy_generic);
-#endif /* CONFIG_NET */
 
 /*
  * Architecture-specific symbols
diff --git a/arch/xtensa/mm/cache.c b/arch/xtensa/mm/cache.c
index 1a804a2f9a5b..3c75c4e597da 100644
--- a/arch/xtensa/mm/cache.c
+++ b/arch/xtensa/mm/cache.c
@@ -103,6 +103,7 @@ void clear_user_highpage(struct page *page, unsigned long vaddr)
 	clear_page_alias(kvaddr, paddr);
 	preempt_enable();
 }
+EXPORT_SYMBOL(clear_user_highpage);
 
 void copy_user_highpage(struct page *dst, struct page *src,
 			unsigned long vaddr, struct vm_area_struct *vma)
@@ -119,10 +120,7 @@ void copy_user_highpage(struct page *dst, struct page *src,
 	copy_page_alias(dst_vaddr, src_vaddr, dst_paddr, src_paddr);
 	preempt_enable();
 }
-
-#endif /* DCACHE_WAY_SIZE > PAGE_SIZE */
-
-#if (DCACHE_WAY_SIZE > PAGE_SIZE) && XCHAL_DCACHE_IS_WRITEBACK
+EXPORT_SYMBOL(copy_user_highpage);
 
 /*
  * Any time the kernel writes to a user page cache page, or it is about to
@@ -176,7 +174,7 @@ void flush_dcache_page(struct page *page)
 
 	/* There shouldn't be an entry in the cache for this page anymore. */
 }
-
+EXPORT_SYMBOL(flush_dcache_page);
 
 /*
  * For now, flush the whole cache. FIXME??
@@ -188,6 +186,7 @@ void local_flush_cache_range(struct vm_area_struct *vma,
 	__flush_invalidate_dcache_all();
 	__invalidate_icache_all();
 }
+EXPORT_SYMBOL(local_flush_cache_range);
 
 /* 
  * Remove any entry in the cache for this page. 
@@ -207,8 +206,9 @@ void local_flush_cache_page(struct vm_area_struct *vma, unsigned long address,
 	__flush_invalidate_dcache_page_alias(virt, phys);
 	__invalidate_icache_page_alias(virt, phys);
 }
+EXPORT_SYMBOL(local_flush_cache_page);
 
-#endif
+#endif /* DCACHE_WAY_SIZE > PAGE_SIZE */
 
 void
 update_mmu_cache(struct vm_area_struct * vma, unsigned long addr, pte_t *ptep)
@@ -225,7 +225,7 @@ update_mmu_cache(struct vm_area_struct * vma, unsigned long addr, pte_t *ptep)
 
 	flush_tlb_page(vma, addr);
 
-#if (DCACHE_WAY_SIZE > PAGE_SIZE) && XCHAL_DCACHE_IS_WRITEBACK
+#if (DCACHE_WAY_SIZE > PAGE_SIZE)
 
 	if (!PageReserved(page) && test_bit(PG_arch_1, &page->flags)) {
 		unsigned long phys = page_to_phys(page);
@@ -256,7 +256,7 @@ update_mmu_cache(struct vm_area_struct * vma, unsigned long addr, pte_t *ptep)
  * flush_dcache_page() on the page.
  */
 
-#if (DCACHE_WAY_SIZE > PAGE_SIZE) && XCHAL_DCACHE_IS_WRITEBACK
+#if (DCACHE_WAY_SIZE > PAGE_SIZE)
 
 void copy_to_user_page(struct vm_area_struct *vma, struct page *page,
 		unsigned long vaddr, void *dst, const void *src,
diff --git a/block/bfq-iosched.c b/block/bfq-iosched.c
index 60a6835265fc..436b6ca6b175 100644
--- a/block/bfq-iosched.c
+++ b/block/bfq-iosched.c
@@ -4299,6 +4299,9 @@ static void bfq_completed_request(struct bfq_queue *bfqq, struct bfq_data *bfqd)
 			bfq_bfqq_expire(bfqd, bfqq, false,
 					BFQQE_NO_MORE_REQUESTS);
 	}
+
+	if (!bfqd->rq_in_driver)
+		bfq_schedule_dispatch(bfqd);
 }
 
 static void bfq_put_rq_priv_body(struct bfq_queue *bfqq)
diff --git a/block/bfq-iosched.h b/block/bfq-iosched.h
index 8fd83b885774..859f0a8c97c8 100644
--- a/block/bfq-iosched.h
+++ b/block/bfq-iosched.h
@@ -52,7 +52,7 @@ struct bfq_entity;
 struct bfq_service_tree {
 	/* tree for active entities (i.e., those backlogged) */
 	struct rb_root active;
-	/* tree for idle entities (i.e., not backlogged, with V <= F_i)*/
+	/* tree for idle entities (i.e., not backlogged, with V < F_i)*/
 	struct rb_root idle;
 
 	/* idle entity with minimum F_i */
@@ -71,17 +71,29 @@ struct bfq_service_tree {
  *
  * bfq_sched_data is the basic scheduler queue.  It supports three
  * ioprio_classes, and can be used either as a toplevel queue or as an
- * intermediate queue on a hierarchical setup.  @next_in_service
- * points to the active entity of the sched_data service trees that
- * will be scheduled next. It is used to reduce the number of steps
- * needed for each hierarchical-schedule update.
+ * intermediate queue in a hierarchical setup.
  *
  * The supported ioprio_classes are the same as in CFQ, in descending
  * priority order, IOPRIO_CLASS_RT, IOPRIO_CLASS_BE, IOPRIO_CLASS_IDLE.
  * Requests from higher priority queues are served before all the
  * requests from lower priority queues; among requests of the same
  * queue requests are served according to B-WF2Q+.
- * All the fields are protected by the queue lock of the containing bfqd.
+ *
+ * The schedule is implemented by the service trees, plus the field
+ * @next_in_service, which points to the entity on the active trees
+ * that will be served next, if 1) no changes in the schedule occurs
+ * before the current in-service entity is expired, 2) the in-service
+ * queue becomes idle when it expires, and 3) if the entity pointed by
+ * in_service_entity is not a queue, then the in-service child entity
+ * of the entity pointed by in_service_entity becomes idle on
+ * expiration. This peculiar definition allows for the following
+ * optimization, not yet exploited: while a given entity is still in
+ * service, we already know which is the best candidate for next
+ * service among the other active entitities in the same parent
+ * entity. We can then quickly compare the timestamps of the
+ * in-service entity with those of such best candidate.
+ *
+ * All fields are protected by the lock of the containing bfqd.
  */
 struct bfq_sched_data {
 	/* entity in service */
diff --git a/block/bfq-wf2q.c b/block/bfq-wf2q.c
index 5ec05cd42b80..911aa7431dbe 100644
--- a/block/bfq-wf2q.c
+++ b/block/bfq-wf2q.c
@@ -188,21 +188,23 @@ static bool bfq_update_parent_budget(struct bfq_entity *next_in_service)
 
 /*
  * This function tells whether entity stops being a candidate for next
- * service, according to the following logic.
+ * service, according to the restrictive definition of the field
+ * next_in_service. In particular, this function is invoked for an
+ * entity that is about to be set in service.
  *
- * This function is invoked for an entity that is about to be set in
- * service. If such an entity is a queue, then the entity is no longer
- * a candidate for next service (i.e, a candidate entity to serve
- * after the in-service entity is expired). The function then returns
- * true.
+ * If entity is a queue, then the entity is no longer a candidate for
+ * next service according to the that definition, because entity is
+ * about to become the in-service queue. This function then returns
+ * true if entity is a queue.
  *
- * In contrast, the entity could stil be a candidate for next service
- * if it is not a queue, and has more than one child. In fact, even if
- * one of its children is about to be set in service, other children
- * may still be the next to serve. As a consequence, a non-queue
- * entity is not a candidate for next-service only if it has only one
- * child. And only if this condition holds, then the function returns
- * true for a non-queue entity.
+ * In contrast, entity could still be a candidate for next service if
+ * it is not a queue, and has more than one active child. In fact,
+ * even if one of its children is about to be set in service, other
+ * active children may still be the next to serve, for the parent
+ * entity, even according to the above definition. As a consequence, a
+ * non-queue entity is not a candidate for next-service only if it has
+ * only one active child. And only if this condition holds, then this
+ * function returns true for a non-queue entity.
  */
 static bool bfq_no_longer_next_in_service(struct bfq_entity *entity)
 {
@@ -213,6 +215,18 @@ static bool bfq_no_longer_next_in_service(struct bfq_entity *entity)
 
 	bfqg = container_of(entity, struct bfq_group, entity);
 
+	/*
+	 * The field active_entities does not always contain the
+	 * actual number of active children entities: it happens to
+	 * not account for the in-service entity in case the latter is
+	 * removed from its active tree (which may get done after
+	 * invoking the function bfq_no_longer_next_in_service in
+	 * bfq_get_next_queue). Fortunately, here, i.e., while
+	 * bfq_no_longer_next_in_service is not yet completed in
+	 * bfq_get_next_queue, bfq_active_extract has not yet been
+	 * invoked, and thus active_entities still coincides with the
+	 * actual number of active entities.
+	 */
 	if (bfqg->active_entities == 1)
 		return true;
 
@@ -954,7 +968,7 @@ static void bfq_update_fin_time_enqueue(struct bfq_entity *entity,
  * one of its children receives a new request.
  *
  * Basically, this function updates the timestamps of entity and
- * inserts entity into its active tree, ater possible extracting it
+ * inserts entity into its active tree, ater possibly extracting it
  * from its idle tree.
  */
 static void __bfq_activate_entity(struct bfq_entity *entity,
@@ -1048,7 +1062,7 @@ static void __bfq_requeue_entity(struct bfq_entity *entity)
 		entity->start = entity->finish;
 		/*
 		 * In addition, if the entity had more than one child
-		 * when set in service, then was not extracted from
+		 * when set in service, then it was not extracted from
 		 * the active tree. This implies that the position of
 		 * the entity in the active tree may need to be
 		 * changed now, because we have just updated the start
@@ -1056,9 +1070,8 @@ static void __bfq_requeue_entity(struct bfq_entity *entity)
 		 * time in a moment (the requeueing is then, more
 		 * precisely, a repositioning in this case). To
 		 * implement this repositioning, we: 1) dequeue the
-		 * entity here, 2) update the finish time and
-		 * requeue the entity according to the new
-		 * timestamps below.
+		 * entity here, 2) update the finish time and requeue
+		 * the entity according to the new timestamps below.
 		 */
 		if (entity->tree)
 			bfq_active_extract(st, entity);
@@ -1105,9 +1118,10 @@ static void __bfq_activate_requeue_entity(struct bfq_entity *entity,
 
 
 /**
- * bfq_activate_entity - activate or requeue an entity representing a bfq_queue,
- *			 and activate, requeue or reposition all ancestors
- *			 for which such an update becomes necessary.
+ * bfq_activate_requeue_entity - activate or requeue an entity representing a
+ *				 bfq_queue, and activate, requeue or reposition
+ *				 all ancestors for which such an update becomes
+ *				 necessary.
  * @entity: the entity to activate.
  * @non_blocking_wait_rq: true if this entity was waiting for a request
  * @requeue: true if this is a requeue, which implies that bfqq is
@@ -1135,9 +1149,9 @@ static void bfq_activate_requeue_entity(struct bfq_entity *entity,
  * @ins_into_idle_tree: if false, the entity will not be put into the
  *			idle tree.
  *
- * Deactivates an entity, independently from its previous state.  Must
+ * Deactivates an entity, independently of its previous state.  Must
  * be invoked only if entity is on a service tree. Extracts the entity
- * from that tree, and if necessary and allowed, puts it on the idle
+ * from that tree, and if necessary and allowed, puts it into the idle
  * tree.
  */
 bool __bfq_deactivate_entity(struct bfq_entity *entity, bool ins_into_idle_tree)
@@ -1158,8 +1172,10 @@ bool __bfq_deactivate_entity(struct bfq_entity *entity, bool ins_into_idle_tree)
 	st = bfq_entity_service_tree(entity);
 	is_in_service = entity == sd->in_service_entity;
 
-	if (is_in_service)
+	if (is_in_service) {
 		bfq_calc_finish(entity, entity->service);
+		sd->in_service_entity = NULL;
+	}
 
 	if (entity->tree == &st->active)
 		bfq_active_extract(st, entity);
@@ -1177,7 +1193,7 @@ bool __bfq_deactivate_entity(struct bfq_entity *entity, bool ins_into_idle_tree)
 /**
  * bfq_deactivate_entity - deactivate an entity representing a bfq_queue.
  * @entity: the entity to deactivate.
- * @ins_into_idle_tree: true if the entity can be put on the idle tree
+ * @ins_into_idle_tree: true if the entity can be put into the idle tree
  */
 static void bfq_deactivate_entity(struct bfq_entity *entity,
 				  bool ins_into_idle_tree,
@@ -1208,16 +1224,29 @@ static void bfq_deactivate_entity(struct bfq_entity *entity,
 			 */
 			bfq_update_next_in_service(sd, NULL);
 
-		if (sd->next_in_service)
+		if (sd->next_in_service || sd->in_service_entity) {
 			/*
-			 * The parent entity is still backlogged,
-			 * because next_in_service is not NULL. So, no
-			 * further upwards deactivation must be
-			 * performed.  Yet, next_in_service has
-			 * changed.  Then the schedule does need to be
-			 * updated upwards.
+			 * The parent entity is still active, because
+			 * either next_in_service or in_service_entity
+			 * is not NULL. So, no further upwards
+			 * deactivation must be performed.  Yet,
+			 * next_in_service has changed.	Then the
+			 * schedule does need to be updated upwards.
+			 *
+			 * NOTE If in_service_entity is not NULL, then
+			 * next_in_service may happen to be NULL,
+			 * although the parent entity is evidently
+			 * active. This happens if 1) the entity
+			 * pointed by in_service_entity is the only
+			 * active entity in the parent entity, and 2)
+			 * according to the definition of
+			 * next_in_service, the in_service_entity
+			 * cannot be considered as
+			 * next_in_service. See the comments on the
+			 * definition of next_in_service for details.
 			 */
 			break;
+		}
 
 		/*
 		 * If we get here, then the parent is no more
@@ -1297,7 +1326,7 @@ static void bfq_update_vtime(struct bfq_service_tree *st, u64 new_value)
  *
  * This function searches the first schedulable entity, starting from the
  * root of the tree and going on the left every time on this side there is
- * a subtree with at least one eligible (start >= vtime) entity. The path on
+ * a subtree with at least one eligible (start <= vtime) entity. The path on
  * the right is followed only if a) the left subtree contains no eligible
  * entities and b) no eligible entity has been found yet.
  */
@@ -1494,47 +1523,34 @@ struct bfq_queue *bfq_get_next_queue(struct bfq_data *bfqd)
 
 		/*
 		 * If entity is no longer a candidate for next
-		 * service, then we extract it from its active tree,
-		 * for the following reason. To further boost the
-		 * throughput in some special case, BFQ needs to know
-		 * which is the next candidate entity to serve, while
-		 * there is already an entity in service. In this
-		 * respect, to make it easy to compute/update the next
-		 * candidate entity to serve after the current
-		 * candidate has been set in service, there is a case
-		 * where it is necessary to extract the current
-		 * candidate from its service tree. Such a case is
-		 * when the entity just set in service cannot be also
-		 * a candidate for next service. Details about when
-		 * this conditions holds are reported in the comments
-		 * on the function bfq_no_longer_next_in_service()
-		 * invoked below.
+		 * service, then it must be extracted from its active
+		 * tree, so as to make sure that it won't be
+		 * considered when computing next_in_service. See the
+		 * comments on the function
+		 * bfq_no_longer_next_in_service() for details.
 		 */
 		if (bfq_no_longer_next_in_service(entity))
 			bfq_active_extract(bfq_entity_service_tree(entity),
 					   entity);
 
 		/*
-		 * For the same reason why we may have just extracted
-		 * entity from its active tree, we may need to update
-		 * next_in_service for the sched_data of entity too,
-		 * regardless of whether entity has been extracted.
-		 * In fact, even if entity has not been extracted, a
-		 * descendant entity may get extracted. Such an event
-		 * would cause a change in next_in_service for the
-		 * level of the descendant entity, and thus possibly
-		 * back to upper levels.
+		 * Even if entity is not to be extracted according to
+		 * the above check, a descendant entity may get
+		 * extracted in one of the next iterations of this
+		 * loop. Such an event could cause a change in
+		 * next_in_service for the level of the descendant
+		 * entity, and thus possibly back to this level.
 		 *
-		 * We cannot perform the resulting needed update
-		 * before the end of this loop, because, to know which
-		 * is the correct next-to-serve candidate entity for
-		 * each level, we need first to find the leaf entity
-		 * to set in service. In fact, only after we know
-		 * which is the next-to-serve leaf entity, we can
-		 * discover whether the parent entity of the leaf
-		 * entity becomes the next-to-serve, and so on.
+		 * However, we cannot perform the resulting needed
+		 * update of next_in_service for this level before the
+		 * end of the whole loop, because, to know which is
+		 * the correct next-to-serve candidate entity for each
+		 * level, we need first to find the leaf entity to set
+		 * in service. In fact, only after we know which is
+		 * the next-to-serve leaf entity, we can discover
+		 * whether the parent entity of the leaf entity
+		 * becomes the next-to-serve, and so on.
 		 */
-
 	}
 
 	bfqq = bfq_entity_to_bfqq(entity);
diff --git a/block/bio-integrity.c b/block/bio-integrity.c
index 83e92beb3c9f..9b1ea478577b 100644
--- a/block/bio-integrity.c
+++ b/block/bio-integrity.c
@@ -387,9 +387,11 @@ static void bio_integrity_verify_fn(struct work_struct *work)
  */
 bool __bio_integrity_endio(struct bio *bio)
 {
-	if (bio_op(bio) == REQ_OP_READ && !bio->bi_status) {
-		struct bio_integrity_payload *bip = bio_integrity(bio);
+	struct blk_integrity *bi = bdev_get_integrity(bio->bi_bdev);
+	struct bio_integrity_payload *bip = bio_integrity(bio);
 
+	if (bio_op(bio) == REQ_OP_READ && !bio->bi_status &&
+	    (bip->bip_flags & BIP_BLOCK_INTEGRITY) && bi->profile->verify_fn) {
 		INIT_WORK(&bip->bip_work, bio_integrity_verify_fn);
 		queue_work(kintegrityd_wq, &bip->bip_work);
 		return false;
diff --git a/block/blk-core.c b/block/blk-core.c
index 970b9c9638c5..dbecbf4a64e0 100644
--- a/block/blk-core.c
+++ b/block/blk-core.c
@@ -3421,6 +3421,10 @@ EXPORT_SYMBOL(blk_finish_plug);
  */
 void blk_pm_runtime_init(struct request_queue *q, struct device *dev)
 {
+	/* not support for RQF_PM and ->rpm_status in blk-mq yet */
+	if (q->mq_ops)
+		return;
+
 	q->dev = dev;
 	q->rpm_status = RPM_ACTIVE;
 	pm_runtime_set_autosuspend_delay(q->dev, -1);
diff --git a/block/blk-mq-cpumap.c b/block/blk-mq-cpumap.c
index 4891f042a22f..9f8cffc8a701 100644
--- a/block/blk-mq-cpumap.c
+++ b/block/blk-mq-cpumap.c
@@ -17,9 +17,9 @@
 static int cpu_to_queue_index(unsigned int nr_queues, const int cpu)
 {
 	/*
-	 * Non online CPU will be mapped to queue index 0.
+	 * Non present CPU will be mapped to queue index 0.
 	 */
-	if (!cpu_online(cpu))
+	if (!cpu_present(cpu))
 		return 0;
 	return cpu % nr_queues;
 }
diff --git a/block/blk-mq-pci.c b/block/blk-mq-pci.c
index 0c3354cf3552..76944e3271bf 100644
--- a/block/blk-mq-pci.c
+++ b/block/blk-mq-pci.c
@@ -36,12 +36,18 @@ int blk_mq_pci_map_queues(struct blk_mq_tag_set *set, struct pci_dev *pdev)
 	for (queue = 0; queue < set->nr_hw_queues; queue++) {
 		mask = pci_irq_get_affinity(pdev, queue);
 		if (!mask)
-			return -EINVAL;
+			goto fallback;
 
 		for_each_cpu(cpu, mask)
 			set->mq_map[cpu] = queue;
 	}
 
 	return 0;
+
+fallback:
+	WARN_ON_ONCE(set->nr_hw_queues > 1);
+	for_each_possible_cpu(cpu)
+		set->mq_map[cpu] = 0;
+	return 0;
 }
 EXPORT_SYMBOL_GPL(blk_mq_pci_map_queues);
diff --git a/block/blk-mq.c b/block/blk-mq.c
index 041f7b7fa0d6..4603b115e234 100644
--- a/block/blk-mq.c
+++ b/block/blk-mq.c
@@ -301,11 +301,12 @@ static struct request *blk_mq_get_request(struct request_queue *q,
 	struct elevator_queue *e = q->elevator;
 	struct request *rq;
 	unsigned int tag;
+	struct blk_mq_ctx *local_ctx = NULL;
 
 	blk_queue_enter_live(q);
 	data->q = q;
 	if (likely(!data->ctx))
-		data->ctx = blk_mq_get_ctx(q);
+		data->ctx = local_ctx = blk_mq_get_ctx(q);
 	if (likely(!data->hctx))
 		data->hctx = blk_mq_map_queue(q, data->ctx->cpu);
 	if (op & REQ_NOWAIT)
@@ -324,6 +325,10 @@ static struct request *blk_mq_get_request(struct request_queue *q,
 
 	tag = blk_mq_get_tag(data);
 	if (tag == BLK_MQ_TAG_FAIL) {
+		if (local_ctx) {
+			blk_mq_put_ctx(local_ctx);
+			data->ctx = NULL;
+		}
 		blk_queue_exit(q);
 		return NULL;
 	}
@@ -355,13 +360,13 @@ struct request *blk_mq_alloc_request(struct request_queue *q, unsigned int op,
 		return ERR_PTR(ret);
 
 	rq = blk_mq_get_request(q, NULL, op, &alloc_data);
-
-	blk_mq_put_ctx(alloc_data.ctx);
 	blk_queue_exit(q);
 
 	if (!rq)
 		return ERR_PTR(-EWOULDBLOCK);
 
+	blk_mq_put_ctx(alloc_data.ctx);
+
 	rq->__data_len = 0;
 	rq->__sector = (sector_t) -1;
 	rq->bio = rq->biotail = NULL;
@@ -406,7 +411,6 @@ struct request *blk_mq_alloc_request_hctx(struct request_queue *q,
 	alloc_data.ctx = __blk_mq_get_ctx(q, cpu);
 
 	rq = blk_mq_get_request(q, NULL, op, &alloc_data);
-
 	blk_queue_exit(q);
 
 	if (!rq)
@@ -679,8 +683,8 @@ EXPORT_SYMBOL(blk_mq_kick_requeue_list);
 void blk_mq_delay_kick_requeue_list(struct request_queue *q,
 				    unsigned long msecs)
 {
-	kblockd_schedule_delayed_work(&q->requeue_work,
-				      msecs_to_jiffies(msecs));
+	kblockd_mod_delayed_work_on(WORK_CPU_UNBOUND, &q->requeue_work,
+				    msecs_to_jiffies(msecs));
 }
 EXPORT_SYMBOL(blk_mq_delay_kick_requeue_list);
 
diff --git a/certs/Makefile b/certs/Makefile
index 4119bb376ea1..847361ce14d1 100644
--- a/certs/Makefile
+++ b/certs/Makefile
@@ -26,7 +26,7 @@ quiet_cmd_extract_certs  = EXTRACT_CERTS   $(patsubst "%",%,$(2))
 targets += x509_certificate_list
 $(obj)/x509_certificate_list: scripts/extract-cert $(SYSTEM_TRUSTED_KEYS_SRCPREFIX)$(SYSTEM_TRUSTED_KEYS_FILENAME) FORCE
 	$(call if_changed,extract_certs,$(SYSTEM_TRUSTED_KEYS_SRCPREFIX)$(CONFIG_SYSTEM_TRUSTED_KEYS))
-endif
+endif # CONFIG_SYSTEM_TRUSTED_KEYRING
 
 clean-files := x509_certificate_list .x509.list
 
@@ -87,7 +87,7 @@ $(obj)/x509.genkey:
 	@echo >>$@ "keyUsage=digitalSignature"
 	@echo >>$@ "subjectKeyIdentifier=hash"
 	@echo >>$@ "authorityKeyIdentifier=keyid"
-endif
+endif # CONFIG_MODULE_SIG_KEY
 
 $(eval $(call config_filename,MODULE_SIG_KEY))
 
@@ -102,4 +102,4 @@ $(obj)/system_certificates.o: $(obj)/signing_key.x509
 targets += signing_key.x509
 $(obj)/signing_key.x509: scripts/extract-cert $(X509_DEP) FORCE
 	$(call if_changed,extract_certs,$(MODULE_SIG_KEY_SRCPREFIX)$(CONFIG_MODULE_SIG_KEY))
-endif
+endif # CONFIG_MODULE_SIG
diff --git a/crypto/af_alg.c b/crypto/af_alg.c
index 3556d8eb54a7..92a3d540d920 100644
--- a/crypto/af_alg.c
+++ b/crypto/af_alg.c
@@ -287,7 +287,7 @@ int af_alg_accept(struct sock *sk, struct socket *newsock, bool kern)
 		goto unlock;
 
 	sock_init_data(newsock, sk2);
-	sock_graft(sk2, newsock);
+	security_sock_graft(sk2, newsock);
 	security_sk_clone(sk, sk2);
 
 	err = type->accept(ask->private, sk2);
diff --git a/crypto/authencesn.c b/crypto/authencesn.c
index 6f8f6b86bfe2..0cf5fefdb859 100644
--- a/crypto/authencesn.c
+++ b/crypto/authencesn.c
@@ -248,6 +248,9 @@ static int crypto_authenc_esn_decrypt_tail(struct aead_request *req,
 	u8 *ihash = ohash + crypto_ahash_digestsize(auth);
 	u32 tmp[2];
 
+	if (!authsize)
+		goto decrypt;
+
 	/* Move high-order bits of sequence number back. */
 	scatterwalk_map_and_copy(tmp, dst, 4, 4, 0);
 	scatterwalk_map_and_copy(tmp + 1, dst, assoclen + cryptlen, 4, 0);
@@ -256,6 +259,8 @@ static int crypto_authenc_esn_decrypt_tail(struct aead_request *req,
 	if (crypto_memneq(ihash, ohash, authsize))
 		return -EBADMSG;
 
+decrypt:
+
 	sg_init_table(areq_ctx->dst, 2);
 	dst = scatterwalk_ffwd(areq_ctx->dst, dst, assoclen);
 
diff --git a/drivers/acpi/acpi_apd.c b/drivers/acpi/acpi_apd.c
index fc6c416f8724..d5999eb41c00 100644
--- a/drivers/acpi/acpi_apd.c
+++ b/drivers/acpi/acpi_apd.c
@@ -180,8 +180,8 @@ static const struct acpi_device_id acpi_apd_device_ids[] = {
 	{ "APMC0D0F", APD_ADDR(xgene_i2c_desc) },
 	{ "BRCM900D", APD_ADDR(vulcan_spi_desc) },
 	{ "CAV900D",  APD_ADDR(vulcan_spi_desc) },
-	{ "HISI0A21", APD_ADDR(hip07_i2c_desc) },
-	{ "HISI0A22", APD_ADDR(hip08_i2c_desc) },
+	{ "HISI02A1", APD_ADDR(hip07_i2c_desc) },
+	{ "HISI02A2", APD_ADDR(hip08_i2c_desc) },
 #endif
 	{ }
 };
diff --git a/drivers/acpi/acpi_lpss.c b/drivers/acpi/acpi_lpss.c
index e51a1e98e62f..f88caf5aab76 100644
--- a/drivers/acpi/acpi_lpss.c
+++ b/drivers/acpi/acpi_lpss.c
@@ -85,6 +85,7 @@ static const struct lpss_device_desc lpss_dma_desc = {
 };
 
 struct lpss_private_data {
+	struct acpi_device *adev;
 	void __iomem *mmio_base;
 	resource_size_t mmio_size;
 	unsigned int fixed_clk_rate;
@@ -155,6 +156,12 @@ static struct pwm_lookup byt_pwm_lookup[] = {
 
 static void byt_pwm_setup(struct lpss_private_data *pdata)
 {
+	struct acpi_device *adev = pdata->adev;
+
+	/* Only call pwm_add_table for the first PWM controller */
+	if (!adev->pnp.unique_id || strcmp(adev->pnp.unique_id, "1"))
+		return;
+
 	if (!acpi_dev_present("INT33FD", NULL, -1))
 		pwm_add_table(byt_pwm_lookup, ARRAY_SIZE(byt_pwm_lookup));
 }
@@ -180,6 +187,12 @@ static struct pwm_lookup bsw_pwm_lookup[] = {
 
 static void bsw_pwm_setup(struct lpss_private_data *pdata)
 {
+	struct acpi_device *adev = pdata->adev;
+
+	/* Only call pwm_add_table for the first PWM controller */
+	if (!adev->pnp.unique_id || strcmp(adev->pnp.unique_id, "1"))
+		return;
+
 	pwm_add_table(bsw_pwm_lookup, ARRAY_SIZE(bsw_pwm_lookup));
 }
 
@@ -456,6 +469,7 @@ static int acpi_lpss_create_device(struct acpi_device *adev,
 		goto err_out;
 	}
 
+	pdata->adev = adev;
 	pdata->dev_desc = dev_desc;
 
 	if (dev_desc->setup)
diff --git a/drivers/acpi/acpi_watchdog.c b/drivers/acpi/acpi_watchdog.c
index 8c4e0a18460a..bf22c29d2517 100644
--- a/drivers/acpi/acpi_watchdog.c
+++ b/drivers/acpi/acpi_watchdog.c
@@ -86,7 +86,12 @@ void __init acpi_watchdog_init(void)
 
 		found = false;
 		resource_list_for_each_entry(rentry, &resource_list) {
-			if (resource_contains(rentry->res, &res)) {
+			if (rentry->res->flags == res.flags &&
+			    resource_overlaps(rentry->res, &res)) {
+				if (res.start < rentry->res->start)
+					rentry->res->start = res.start;
+				if (res.end > rentry->res->end)
+					rentry->res->end = res.end;
 				found = true;
 				break;
 			}
diff --git a/drivers/acpi/arm64/iort.c b/drivers/acpi/arm64/iort.c
index d048f72c23f8..a3215ee671c1 100644
--- a/drivers/acpi/arm64/iort.c
+++ b/drivers/acpi/arm64/iort.c
@@ -31,6 +31,11 @@
 #define IORT_IOMMU_TYPE		((1 << ACPI_IORT_NODE_SMMU) |	\
 				(1 << ACPI_IORT_NODE_SMMU_V3))
 
+/* Until ACPICA headers cover IORT rev. C */
+#ifndef ACPI_IORT_SMMU_V3_CAVIUM_CN99XX
+#define ACPI_IORT_SMMU_V3_CAVIUM_CN99XX		0x2
+#endif
+
 struct iort_its_msi_chip {
 	struct list_head	list;
 	struct fwnode_handle	*fw_node;
@@ -819,6 +824,36 @@ static int __init arm_smmu_v3_count_resources(struct acpi_iort_node *node)
 	return num_res;
 }
 
+static bool arm_smmu_v3_is_combined_irq(struct acpi_iort_smmu_v3 *smmu)
+{
+	/*
+	 * Cavium ThunderX2 implementation doesn't not support unique
+	 * irq line. Use single irq line for all the SMMUv3 interrupts.
+	 */
+	if (smmu->model != ACPI_IORT_SMMU_V3_CAVIUM_CN99XX)
+		return false;
+
+	/*
+	 * ThunderX2 doesn't support MSIs from the SMMU, so we're checking
+	 * SPI numbers here.
+	 */
+	return smmu->event_gsiv == smmu->pri_gsiv &&
+	       smmu->event_gsiv == smmu->gerr_gsiv &&
+	       smmu->event_gsiv == smmu->sync_gsiv;
+}
+
+static unsigned long arm_smmu_v3_resource_size(struct acpi_iort_smmu_v3 *smmu)
+{
+	/*
+	 * Override the size, for Cavium ThunderX2 implementation
+	 * which doesn't support the page 1 SMMU register space.
+	 */
+	if (smmu->model == ACPI_IORT_SMMU_V3_CAVIUM_CN99XX)
+		return SZ_64K;
+
+	return SZ_128K;
+}
+
 static void __init arm_smmu_v3_init_resources(struct resource *res,
 					      struct acpi_iort_node *node)
 {
@@ -829,30 +864,38 @@ static void __init arm_smmu_v3_init_resources(struct resource *res,
 	smmu = (struct acpi_iort_smmu_v3 *)node->node_data;
 
 	res[num_res].start = smmu->base_address;
-	res[num_res].end = smmu->base_address + SZ_128K - 1;
+	res[num_res].end = smmu->base_address +
+				arm_smmu_v3_resource_size(smmu) - 1;
 	res[num_res].flags = IORESOURCE_MEM;
 
 	num_res++;
+	if (arm_smmu_v3_is_combined_irq(smmu)) {
+		if (smmu->event_gsiv)
+			acpi_iort_register_irq(smmu->event_gsiv, "combined",
+					       ACPI_EDGE_SENSITIVE,
+					       &res[num_res++]);
+	} else {
 
-	if (smmu->event_gsiv)
-		acpi_iort_register_irq(smmu->event_gsiv, "eventq",
-				       ACPI_EDGE_SENSITIVE,
-				       &res[num_res++]);
-
-	if (smmu->pri_gsiv)
-		acpi_iort_register_irq(smmu->pri_gsiv, "priq",
-				       ACPI_EDGE_SENSITIVE,
-				       &res[num_res++]);
-
-	if (smmu->gerr_gsiv)
-		acpi_iort_register_irq(smmu->gerr_gsiv, "gerror",
-				       ACPI_EDGE_SENSITIVE,
-				       &res[num_res++]);
-
-	if (smmu->sync_gsiv)
-		acpi_iort_register_irq(smmu->sync_gsiv, "cmdq-sync",
-				       ACPI_EDGE_SENSITIVE,
-				       &res[num_res++]);
+		if (smmu->event_gsiv)
+			acpi_iort_register_irq(smmu->event_gsiv, "eventq",
+					       ACPI_EDGE_SENSITIVE,
+					       &res[num_res++]);
+
+		if (smmu->pri_gsiv)
+			acpi_iort_register_irq(smmu->pri_gsiv, "priq",
+					       ACPI_EDGE_SENSITIVE,
+					       &res[num_res++]);
+
+		if (smmu->gerr_gsiv)
+			acpi_iort_register_irq(smmu->gerr_gsiv, "gerror",
+					       ACPI_EDGE_SENSITIVE,
+					       &res[num_res++]);
+
+		if (smmu->sync_gsiv)
+			acpi_iort_register_irq(smmu->sync_gsiv, "cmdq-sync",
+					       ACPI_EDGE_SENSITIVE,
+					       &res[num_res++]);
+	}
 }
 
 static bool __init arm_smmu_v3_is_coherent(struct acpi_iort_node *node)
diff --git a/drivers/acpi/ec.c b/drivers/acpi/ec.c
index 854d428e2a2d..62068a5e814f 100644
--- a/drivers/acpi/ec.c
+++ b/drivers/acpi/ec.c
@@ -147,10 +147,14 @@ static unsigned int ec_storm_threshold  __read_mostly = 8;
 module_param(ec_storm_threshold, uint, 0644);
 MODULE_PARM_DESC(ec_storm_threshold, "Maxim false GPE numbers not considered as GPE storm");
 
-static bool ec_freeze_events __read_mostly = true;
+static bool ec_freeze_events __read_mostly = false;
 module_param(ec_freeze_events, bool, 0644);
 MODULE_PARM_DESC(ec_freeze_events, "Disabling event handling during suspend/resume");
 
+static bool ec_no_wakeup __read_mostly;
+module_param(ec_no_wakeup, bool, 0644);
+MODULE_PARM_DESC(ec_no_wakeup, "Do not wake up from suspend-to-idle");
+
 struct acpi_ec_query_handler {
 	struct list_head node;
 	acpi_ec_query_func func;
@@ -535,6 +539,14 @@ static void acpi_ec_disable_event(struct acpi_ec *ec)
 	spin_unlock_irqrestore(&ec->lock, flags);
 	__acpi_ec_flush_event(ec);
 }
+
+void acpi_ec_flush_work(void)
+{
+	if (first_ec)
+		__acpi_ec_flush_event(first_ec);
+
+	flush_scheduled_work();
+}
 #endif /* CONFIG_PM_SLEEP */
 
 static bool acpi_ec_guard_event(struct acpi_ec *ec)
@@ -1870,31 +1882,39 @@ error:
 }
 
 #ifdef CONFIG_PM_SLEEP
-static int acpi_ec_suspend_noirq(struct device *dev)
+static int acpi_ec_suspend(struct device *dev)
 {
 	struct acpi_ec *ec =
 		acpi_driver_data(to_acpi_device(dev));
 
-	acpi_ec_enter_noirq(ec);
+	if (acpi_sleep_no_ec_events() && ec_freeze_events)
+		acpi_ec_disable_event(ec);
 	return 0;
 }
 
-static int acpi_ec_resume_noirq(struct device *dev)
+static int acpi_ec_suspend_noirq(struct device *dev)
 {
-	struct acpi_ec *ec =
-		acpi_driver_data(to_acpi_device(dev));
+	struct acpi_ec *ec = acpi_driver_data(to_acpi_device(dev));
+
+	/*
+	 * The SCI handler doesn't run at this point, so the GPE can be
+	 * masked at the low level without side effects.
+	 */
+	if (ec_no_wakeup && test_bit(EC_FLAGS_STARTED, &ec->flags) &&
+	    ec->reference_count >= 1)
+		acpi_set_gpe(NULL, ec->gpe, ACPI_GPE_DISABLE);
 
-	acpi_ec_leave_noirq(ec);
 	return 0;
 }
 
-static int acpi_ec_suspend(struct device *dev)
+static int acpi_ec_resume_noirq(struct device *dev)
 {
-	struct acpi_ec *ec =
-		acpi_driver_data(to_acpi_device(dev));
+	struct acpi_ec *ec = acpi_driver_data(to_acpi_device(dev));
+
+	if (ec_no_wakeup && test_bit(EC_FLAGS_STARTED, &ec->flags) &&
+	    ec->reference_count >= 1)
+		acpi_set_gpe(NULL, ec->gpe, ACPI_GPE_ENABLE);
 
-	if (acpi_sleep_no_ec_events() && ec_freeze_events)
-		acpi_ec_disable_event(ec);
 	return 0;
 }
 
diff --git a/drivers/acpi/internal.h b/drivers/acpi/internal.h
index 9531d3276f65..58dd7ab3c653 100644
--- a/drivers/acpi/internal.h
+++ b/drivers/acpi/internal.h
@@ -193,6 +193,10 @@ int acpi_ec_add_query_handler(struct acpi_ec *ec, u8 query_bit,
 			      void *data);
 void acpi_ec_remove_query_handler(struct acpi_ec *ec, u8 query_bit);
 
+#ifdef CONFIG_PM_SLEEP
+void acpi_ec_flush_work(void);
+#endif
+
 
 /*--------------------------------------------------------------------------
                                   Suspend/Resume
diff --git a/drivers/acpi/irq.c b/drivers/acpi/irq.c
index 830299a74b84..7c352cba0528 100644
--- a/drivers/acpi/irq.c
+++ b/drivers/acpi/irq.c
@@ -24,7 +24,7 @@ static struct fwnode_handle *acpi_gsi_domain_id;
  *
  * irq location updated with irq value [>0 on success, 0 on failure]
  *
- * Returns: linux IRQ number on success (>0)
+ * Returns: 0 on success
  *          -EINVAL on failure
  */
 int acpi_gsi_to_irq(u32 gsi, unsigned int *irq)
@@ -37,7 +37,7 @@ int acpi_gsi_to_irq(u32 gsi, unsigned int *irq)
 	 * *irq == 0 means no mapping, that should
 	 * be reported as a failure
 	 */
-	return (*irq > 0) ? *irq : -EINVAL;
+	return (*irq > 0) ? 0 : -EINVAL;
 }
 EXPORT_SYMBOL_GPL(acpi_gsi_to_irq);
 
diff --git a/drivers/acpi/nfit/core.c b/drivers/acpi/nfit/core.c
index b75b734ee73a..19182d091587 100644
--- a/drivers/acpi/nfit/core.c
+++ b/drivers/acpi/nfit/core.c
@@ -3160,6 +3160,8 @@ static struct acpi_driver acpi_nfit_driver = {
 
 static __init int nfit_init(void)
 {
+	int ret;
+
 	BUILD_BUG_ON(sizeof(struct acpi_table_nfit) != 40);
 	BUILD_BUG_ON(sizeof(struct acpi_nfit_system_address) != 56);
 	BUILD_BUG_ON(sizeof(struct acpi_nfit_memory_map) != 48);
@@ -3187,8 +3189,14 @@ static __init int nfit_init(void)
 		return -ENOMEM;
 
 	nfit_mce_register();
+	ret = acpi_bus_register_driver(&acpi_nfit_driver);
+	if (ret) {
+		nfit_mce_unregister();
+		destroy_workqueue(nfit_wq);
+	}
+
+	return ret;
 
-	return acpi_bus_register_driver(&acpi_nfit_driver);
 }
 
 static __exit void nfit_exit(void)
diff --git a/drivers/acpi/numa.c b/drivers/acpi/numa.c
index edb0c79f7c64..917f1cc0fda4 100644
--- a/drivers/acpi/numa.c
+++ b/drivers/acpi/numa.c
@@ -443,7 +443,7 @@ int __init acpi_numa_init(void)
 	 * So go over all cpu entries in SRAT to get apicid to node mapping.
 	 */
 
-	/* SRAT: Static Resource Affinity Table */
+	/* SRAT: System Resource Affinity Table */
 	if (!acpi_table_parse(ACPI_SIG_SRAT, acpi_parse_srat)) {
 		struct acpi_subtable_proc srat_proc[3];
 
diff --git a/drivers/acpi/sleep.c b/drivers/acpi/sleep.c
index be17664736b2..fa8243c5c062 100644
--- a/drivers/acpi/sleep.c
+++ b/drivers/acpi/sleep.c
@@ -777,11 +777,11 @@ static void acpi_freeze_sync(void)
 	/*
 	 * Process all pending events in case there are any wakeup ones.
 	 *
-	 * The EC driver uses the system workqueue, so that one needs to be
-	 * flushed too.
+	 * The EC driver uses the system workqueue and an additional special
+	 * one, so those need to be flushed too.
 	 */
+	acpi_ec_flush_work();
 	acpi_os_wait_events_complete();
-	flush_scheduled_work();
 	s2idle_wakeup = false;
 }
 
diff --git a/drivers/acpi/spcr.c b/drivers/acpi/spcr.c
index 4ac3e06b41d8..98aa8c808a33 100644
--- a/drivers/acpi/spcr.c
+++ b/drivers/acpi/spcr.c
@@ -17,6 +17,16 @@
 #include <linux/serial_core.h>
 
 /*
+ * Erratum 44 for QDF2432v1 and QDF2400v1 SoCs describes the BUSY bit as
+ * occasionally getting stuck as 1. To avoid the potential for a hang, check
+ * TXFE == 0 instead of BUSY == 1. This may not be suitable for all UART
+ * implementations, so only do so if an affected platform is detected in
+ * parse_spcr().
+ */
+bool qdf2400_e44_present;
+EXPORT_SYMBOL(qdf2400_e44_present);
+
+/*
  * Some Qualcomm Datacenter Technologies SoCs have a defective UART BUSY bit.
  * Detect them by examining the OEM fields in the SPCR header, similiar to PCI
  * quirk detection in pci_mcfg.c.
@@ -147,8 +157,30 @@ int __init parse_spcr(bool earlycon)
 		goto done;
 	}
 
-	if (qdf2400_erratum_44_present(&table->header))
-		uart = "qdf2400_e44";
+	/*
+	 * If the E44 erratum is required, then we need to tell the pl011
+	 * driver to implement the work-around.
+	 *
+	 * The global variable is used by the probe function when it
+	 * creates the UARTs, whether or not they're used as a console.
+	 *
+	 * If the user specifies "traditional" earlycon, the qdf2400_e44
+	 * console name matches the EARLYCON_DECLARE() statement, and
+	 * SPCR is not used.  Parameter "earlycon" is false.
+	 *
+	 * If the user specifies "SPCR" earlycon, then we need to update
+	 * the console name so that it also says "qdf2400_e44".  Parameter
+	 * "earlycon" is true.
+	 *
+	 * For consistency, if we change the console name, then we do it
+	 * for everyone, not just earlycon.
+	 */
+	if (qdf2400_erratum_44_present(&table->header)) {
+		qdf2400_e44_present = true;
+		if (earlycon)
+			uart = "qdf2400_e44";
+	}
+
 	if (xgene_8250_erratum_present(table))
 		iotype = "mmio32";
 
diff --git a/drivers/acpi/x86/utils.c b/drivers/acpi/x86/utils.c
index bd86b809c848..b4fbb9929482 100644
--- a/drivers/acpi/x86/utils.c
+++ b/drivers/acpi/x86/utils.c
@@ -12,6 +12,7 @@
  */
 
 #include <linux/acpi.h>
+#include <linux/dmi.h>
 #include <asm/cpu_device_id.h>
 #include <asm/intel-family.h>
 #include "../internal.h"
@@ -20,6 +21,10 @@
  * Some ACPI devices are hidden (status == 0x0) in recent BIOS-es because
  * some recent Windows drivers bind to one device but poke at multiple
  * devices at the same time, so the others get hidden.
+ *
+ * Some BIOS-es (temporarily) hide specific APCI devices to work around Windows
+ * driver bugs. We use DMI matching to match known cases of this.
+ *
  * We work around this by always reporting ACPI_STA_DEFAULT for these
  * devices. Note this MUST only be done for devices where this is safe.
  *
@@ -31,14 +36,16 @@
 struct always_present_id {
 	struct acpi_device_id hid[2];
 	struct x86_cpu_id cpu_ids[2];
+	struct dmi_system_id dmi_ids[2]; /* Optional */
 	const char *uid;
 };
 
 #define ICPU(model)	{ X86_VENDOR_INTEL, 6, model, X86_FEATURE_ANY, }
 
-#define ENTRY(hid, uid, cpu_models) {					\
+#define ENTRY(hid, uid, cpu_models, dmi...) {				\
 	{ { hid, }, {} },						\
 	{ cpu_models, {} },						\
+	{ { .matches = dmi }, {} },					\
 	uid,								\
 }
 
@@ -47,13 +54,35 @@ static const struct always_present_id always_present_ids[] = {
 	 * Bay / Cherry Trail PWM directly poked by GPU driver in win10,
 	 * but Linux uses a separate PWM driver, harmless if not used.
 	 */
-	ENTRY("80860F09", "1", ICPU(INTEL_FAM6_ATOM_SILVERMONT1)),
-	ENTRY("80862288", "1", ICPU(INTEL_FAM6_ATOM_AIRMONT)),
+	ENTRY("80860F09", "1", ICPU(INTEL_FAM6_ATOM_SILVERMONT1), {}),
+	ENTRY("80862288", "1", ICPU(INTEL_FAM6_ATOM_AIRMONT), {}),
 	/*
 	 * The INT0002 device is necessary to clear wakeup interrupt sources
 	 * on Cherry Trail devices, without it we get nobody cared IRQ msgs.
 	 */
-	ENTRY("INT0002", "1", ICPU(INTEL_FAM6_ATOM_AIRMONT)),
+	ENTRY("INT0002", "1", ICPU(INTEL_FAM6_ATOM_AIRMONT), {}),
+	/*
+	 * On the Dell Venue 11 Pro 7130 the DSDT hides the touchscreen ACPI
+	 * device until a certain time after _SB.PCI0.GFX0.LCD.LCD1._ON gets
+	 * called has passed *and* _STA has been called at least 3 times since.
+	 */
+	ENTRY("SYNA7500", "1", ICPU(INTEL_FAM6_HASWELL_ULT), {
+		DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
+		DMI_MATCH(DMI_PRODUCT_NAME, "Venue 11 Pro 7130"),
+	      }),
+	/*
+	 * The GPD win BIOS dated 20170320 has disabled the accelerometer, the
+	 * drivers sometimes cause crashes under Windows and this is how the
+	 * manufacturer has solved this :| Note that the the DMI data is less
+	 * generic then it seems, a board_vendor of "AMI Corporation" is quite
+	 * rare and a board_name of "Default String" also is rare.
+	 */
+	ENTRY("KIOX000A", "1", ICPU(INTEL_FAM6_ATOM_AIRMONT), {
+		DMI_MATCH(DMI_BOARD_VENDOR, "AMI Corporation"),
+		DMI_MATCH(DMI_BOARD_NAME, "Default string"),
+		DMI_MATCH(DMI_PRODUCT_NAME, "Default string"),
+		DMI_MATCH(DMI_BIOS_DATE, "03/20/2017")
+	      }),
 };
 
 bool acpi_device_always_present(struct acpi_device *adev)
@@ -76,6 +105,10 @@ bool acpi_device_always_present(struct acpi_device *adev)
 		if (!x86_match_cpu(always_present_ids[i].cpu_ids))
 			continue;
 
+		if (always_present_ids[i].dmi_ids[0].matches[0].slot &&
+		    !dmi_check_system(always_present_ids[i].dmi_ids))
+			continue;
+
 		if (old_status != ACPI_STA_DEFAULT) /* Log only once */
 			dev_info(&adev->dev,
 				 "Device [%s] is in always present list\n",
diff --git a/drivers/android/binder.c b/drivers/android/binder.c
index aae4d8d4be36..f7665c31feca 100644
--- a/drivers/android/binder.c
+++ b/drivers/android/binder.c
@@ -2200,8 +2200,12 @@ static void binder_transaction(struct binder_proc *proc,
 	list_add_tail(&t->work.entry, target_list);
 	tcomplete->type = BINDER_WORK_TRANSACTION_COMPLETE;
 	list_add_tail(&tcomplete->entry, &thread->todo);
-	if (target_wait)
-		wake_up_interruptible(target_wait);
+	if (target_wait) {
+		if (reply || !(t->flags & TF_ONE_WAY))
+			wake_up_interruptible_sync(target_wait);
+		else
+			wake_up_interruptible(target_wait);
+	}
 	return;
 
 err_translate_failed:
@@ -3247,10 +3251,6 @@ static long binder_ioctl(struct file *filp, unsigned int cmd, unsigned long arg)
 	/*pr_info("binder_ioctl: %d:%d %x %lx\n",
 			proc->pid, current->pid, cmd, arg);*/
 
-	if (unlikely(current->mm != proc->vma_vm_mm)) {
-		pr_err("current mm mismatch proc mm\n");
-		return -EINVAL;
-	}
 	trace_binder_ioctl(cmd, arg);
 
 	ret = wait_event_interruptible(binder_user_error_wait, binder_stop_on_user_error < 2);
@@ -3464,9 +3464,8 @@ static int binder_open(struct inode *nodp, struct file *filp)
 	proc = kzalloc(sizeof(*proc), GFP_KERNEL);
 	if (proc == NULL)
 		return -ENOMEM;
-	get_task_struct(current);
-	proc->tsk = current;
-	proc->vma_vm_mm = current->mm;
+	get_task_struct(current->group_leader);
+	proc->tsk = current->group_leader;
 	INIT_LIST_HEAD(&proc->todo);
 	init_waitqueue_head(&proc->wait);
 	proc->default_priority = task_nice(current);
diff --git a/drivers/ata/Kconfig b/drivers/ata/Kconfig
index 948fc86980a1..363fc5330c21 100644
--- a/drivers/ata/Kconfig
+++ b/drivers/ata/Kconfig
@@ -215,7 +215,7 @@ config SATA_FSL
 
 config SATA_GEMINI
 	tristate "Gemini SATA bridge support"
-	depends on PATA_FTIDE010
+	depends on ARCH_GEMINI || COMPILE_TEST
 	default ARCH_GEMINI
 	help
 	  This enabled support for the FTIDE010 to SATA bridge
@@ -613,7 +613,7 @@ config PATA_FTIDE010
 	tristate "Faraday Technology FTIDE010 PATA support"
 	depends on OF
 	depends on ARM
-	default ARCH_GEMINI
+	depends on SATA_GEMINI
 	help
 	  This option enables support for the Faraday FTIDE010
 	  PATA controller found in the Cortina Gemini SoCs.
diff --git a/drivers/ata/libata-core.c b/drivers/ata/libata-core.c
index 8453f9a4682f..fa7dd4394c02 100644
--- a/drivers/ata/libata-core.c
+++ b/drivers/ata/libata-core.c
@@ -2083,7 +2083,7 @@ unsigned int ata_read_log_page(struct ata_device *dev, u8 log,
 retry:
 	ata_tf_init(dev, &tf);
 	if (dev->dma_mode && ata_id_has_read_log_dma_ext(dev->id) &&
-	    !(dev->horkage & ATA_HORKAGE_NO_NCQ_LOG)) {
+	    !(dev->horkage & ATA_HORKAGE_NO_DMA_LOG)) {
 		tf.command = ATA_CMD_READ_LOG_DMA_EXT;
 		tf.protocol = ATA_PROT_DMA;
 		dma = true;
@@ -2102,8 +2102,8 @@ retry:
 				     buf, sectors * ATA_SECT_SIZE, 0);
 
 	if (err_mask && dma) {
-		dev->horkage |= ATA_HORKAGE_NO_NCQ_LOG;
-		ata_dev_warn(dev, "READ LOG DMA EXT failed, trying unqueued\n");
+		dev->horkage |= ATA_HORKAGE_NO_DMA_LOG;
+		ata_dev_warn(dev, "READ LOG DMA EXT failed, trying PIO\n");
 		goto retry;
 	}
 
diff --git a/drivers/ata/libata-eh.c b/drivers/ata/libata-eh.c
index b70bcf6d2914..3dbd05532c09 100644
--- a/drivers/ata/libata-eh.c
+++ b/drivers/ata/libata-eh.c
@@ -1434,7 +1434,7 @@ void ata_eh_about_to_do(struct ata_link *link, struct ata_device *dev,
 
 /**
  *	ata_eh_done - EH action complete
-*	@ap: target ATA port
+ *	@link: ATA link for which EH actions are complete
  *	@dev: target ATA dev for per-dev action (can be NULL)
  *	@action: action just completed
  *
@@ -1576,7 +1576,7 @@ unsigned int atapi_eh_tur(struct ata_device *dev, u8 *r_sense_key)
 
 /**
  *	ata_eh_request_sense - perform REQUEST_SENSE_DATA_EXT
- *	@dev: device to perform REQUEST_SENSE_SENSE_DATA_EXT to
+ *	@qc: qc to perform REQUEST_SENSE_SENSE_DATA_EXT to
  *	@cmd: scsi command for which the sense code should be set
  *
  *	Perform REQUEST_SENSE_DATA_EXT after the device reported CHECK
@@ -4175,7 +4175,6 @@ static void ata_eh_handle_port_resume(struct ata_port *ap)
 	struct ata_link *link;
 	struct ata_device *dev;
 	unsigned long flags;
-	int rc = 0;
 
 	/* are we resuming? */
 	spin_lock_irqsave(ap->lock, flags);
@@ -4202,7 +4201,7 @@ static void ata_eh_handle_port_resume(struct ata_port *ap)
 	ata_acpi_set_state(ap, ap->pm_mesg);
 
 	if (ap->ops->port_resume)
-		rc = ap->ops->port_resume(ap);
+		ap->ops->port_resume(ap);
 
 	/* tell ACPI that we're resuming */
 	ata_acpi_on_resume(ap);
diff --git a/drivers/ata/libata-scsi.c b/drivers/ata/libata-scsi.c
index d462c5a3a7ef..44ba292f2cd7 100644
--- a/drivers/ata/libata-scsi.c
+++ b/drivers/ata/libata-scsi.c
@@ -3030,10 +3030,12 @@ static unsigned int atapi_xlat(struct ata_queued_cmd *qc)
 static struct ata_device *ata_find_dev(struct ata_port *ap, int devno)
 {
 	if (!sata_pmp_attached(ap)) {
-		if (likely(devno < ata_link_max_devices(&ap->link)))
+		if (likely(devno >= 0 &&
+			   devno < ata_link_max_devices(&ap->link)))
 			return &ap->link.device[devno];
 	} else {
-		if (likely(devno < ap->nr_pmp_links))
+		if (likely(devno >= 0 &&
+			   devno < ap->nr_pmp_links))
 			return &ap->pmp_link[devno].device[0];
 	}
 
diff --git a/drivers/ata/sata_rcar.c b/drivers/ata/sata_rcar.c
index ee9844758736..537d11869069 100644
--- a/drivers/ata/sata_rcar.c
+++ b/drivers/ata/sata_rcar.c
@@ -858,6 +858,14 @@ static const struct of_device_id sata_rcar_match[] = {
 		.compatible = "renesas,sata-r8a7795",
 		.data = (void *)RCAR_GEN2_SATA
 	},
+	{
+		.compatible = "renesas,rcar-gen2-sata",
+		.data = (void *)RCAR_GEN2_SATA
+	},
+	{
+		.compatible = "renesas,rcar-gen3-sata",
+		.data = (void *)RCAR_GEN2_SATA
+	},
 	{ },
 };
 MODULE_DEVICE_TABLE(of, sata_rcar_match);
diff --git a/drivers/atm/zatm.c b/drivers/atm/zatm.c
index 292dec18ffb8..07bdd51b3b9a 100644
--- a/drivers/atm/zatm.c
+++ b/drivers/atm/zatm.c
@@ -1613,7 +1613,7 @@ static int zatm_init_one(struct pci_dev *pci_dev,
 
 	ret = dma_set_mask_and_coherent(&pci_dev->dev, DMA_BIT_MASK(32));
 	if (ret < 0)
-		goto out_disable;
+		goto out_release;
 
 	zatm_dev->pci_dev = pci_dev;
 	dev->dev_data = zatm_dev;
diff --git a/drivers/base/dma-coherent.c b/drivers/base/dma-coherent.c
index 2ae24c28e70c..1c152aed6b82 100644
--- a/drivers/base/dma-coherent.c
+++ b/drivers/base/dma-coherent.c
@@ -25,7 +25,7 @@ static inline struct dma_coherent_mem *dev_get_coherent_memory(struct device *de
 {
 	if (dev && dev->dma_mem)
 		return dev->dma_mem;
-	return dma_coherent_default_memory;
+	return NULL;
 }
 
 static inline dma_addr_t dma_get_device_base(struct device *dev,
@@ -165,34 +165,15 @@ void *dma_mark_declared_memory_occupied(struct device *dev,
 }
 EXPORT_SYMBOL(dma_mark_declared_memory_occupied);
 
-/**
- * dma_alloc_from_coherent() - try to allocate memory from the per-device coherent area
- *
- * @dev:	device from which we allocate memory
- * @size:	size of requested memory area
- * @dma_handle:	This will be filled with the correct dma handle
- * @ret:	This pointer will be filled with the virtual address
- *		to allocated area.
- *
- * This function should be only called from per-arch dma_alloc_coherent()
- * to support allocation from per-device coherent memory pools.
- *
- * Returns 0 if dma_alloc_coherent should continue with allocating from
- * generic memory areas, or !0 if dma_alloc_coherent should return @ret.
- */
-int dma_alloc_from_coherent(struct device *dev, ssize_t size,
-				       dma_addr_t *dma_handle, void **ret)
+static void *__dma_alloc_from_coherent(struct dma_coherent_mem *mem,
+		ssize_t size, dma_addr_t *dma_handle)
 {
-	struct dma_coherent_mem *mem = dev_get_coherent_memory(dev);
 	int order = get_order(size);
 	unsigned long flags;
 	int pageno;
 	int dma_memory_map;
+	void *ret;
 
-	if (!mem)
-		return 0;
-
-	*ret = NULL;
 	spin_lock_irqsave(&mem->spinlock, flags);
 
 	if (unlikely(size > (mem->size << PAGE_SHIFT)))
@@ -203,21 +184,50 @@ int dma_alloc_from_coherent(struct device *dev, ssize_t size,
 		goto err;
 
 	/*
-	 * Memory was found in the per-device area.
+	 * Memory was found in the coherent area.
 	 */
-	*dma_handle = dma_get_device_base(dev, mem) + (pageno << PAGE_SHIFT);
-	*ret = mem->virt_base + (pageno << PAGE_SHIFT);
+	*dma_handle = mem->device_base + (pageno << PAGE_SHIFT);
+	ret = mem->virt_base + (pageno << PAGE_SHIFT);
 	dma_memory_map = (mem->flags & DMA_MEMORY_MAP);
 	spin_unlock_irqrestore(&mem->spinlock, flags);
 	if (dma_memory_map)
-		memset(*ret, 0, size);
+		memset(ret, 0, size);
 	else
-		memset_io(*ret, 0, size);
+		memset_io(ret, 0, size);
 
-	return 1;
+	return ret;
 
 err:
 	spin_unlock_irqrestore(&mem->spinlock, flags);
+	return NULL;
+}
+
+/**
+ * dma_alloc_from_dev_coherent() - allocate memory from device coherent pool
+ * @dev:	device from which we allocate memory
+ * @size:	size of requested memory area
+ * @dma_handle:	This will be filled with the correct dma handle
+ * @ret:	This pointer will be filled with the virtual address
+ *		to allocated area.
+ *
+ * This function should be only called from per-arch dma_alloc_coherent()
+ * to support allocation from per-device coherent memory pools.
+ *
+ * Returns 0 if dma_alloc_coherent should continue with allocating from
+ * generic memory areas, or !0 if dma_alloc_coherent should return @ret.
+ */
+int dma_alloc_from_dev_coherent(struct device *dev, ssize_t size,
+		dma_addr_t *dma_handle, void **ret)
+{
+	struct dma_coherent_mem *mem = dev_get_coherent_memory(dev);
+
+	if (!mem)
+		return 0;
+
+	*ret = __dma_alloc_from_coherent(mem, size, dma_handle);
+	if (*ret)
+		return 1;
+
 	/*
 	 * In the case where the allocation can not be satisfied from the
 	 * per-device area, try to fall back to generic memory if the
@@ -225,25 +235,20 @@ err:
 	 */
 	return mem->flags & DMA_MEMORY_EXCLUSIVE;
 }
-EXPORT_SYMBOL(dma_alloc_from_coherent);
+EXPORT_SYMBOL(dma_alloc_from_dev_coherent);
 
-/**
- * dma_release_from_coherent() - try to free the memory allocated from per-device coherent memory pool
- * @dev:	device from which the memory was allocated
- * @order:	the order of pages allocated
- * @vaddr:	virtual address of allocated pages
- *
- * This checks whether the memory was allocated from the per-device
- * coherent memory pool and if so, releases that memory.
- *
- * Returns 1 if we correctly released the memory, or 0 if
- * dma_release_coherent() should proceed with releasing memory from
- * generic pools.
- */
-int dma_release_from_coherent(struct device *dev, int order, void *vaddr)
+void *dma_alloc_from_global_coherent(ssize_t size, dma_addr_t *dma_handle)
 {
-	struct dma_coherent_mem *mem = dev_get_coherent_memory(dev);
+	if (!dma_coherent_default_memory)
+		return NULL;
+
+	return __dma_alloc_from_coherent(dma_coherent_default_memory, size,
+			dma_handle);
+}
 
+static int __dma_release_from_coherent(struct dma_coherent_mem *mem,
+				       int order, void *vaddr)
+{
 	if (mem && vaddr >= mem->virt_base && vaddr <
 		   (mem->virt_base + (mem->size << PAGE_SHIFT))) {
 		int page = (vaddr - mem->virt_base) >> PAGE_SHIFT;
@@ -256,28 +261,39 @@ int dma_release_from_coherent(struct device *dev, int order, void *vaddr)
 	}
 	return 0;
 }
-EXPORT_SYMBOL(dma_release_from_coherent);
 
 /**
- * dma_mmap_from_coherent() - try to mmap the memory allocated from
- * per-device coherent memory pool to userspace
+ * dma_release_from_dev_coherent() - free memory to device coherent memory pool
  * @dev:	device from which the memory was allocated
- * @vma:	vm_area for the userspace memory
- * @vaddr:	cpu address returned by dma_alloc_from_coherent
- * @size:	size of the memory buffer allocated by dma_alloc_from_coherent
- * @ret:	result from remap_pfn_range()
+ * @order:	the order of pages allocated
+ * @vaddr:	virtual address of allocated pages
  *
  * This checks whether the memory was allocated from the per-device
- * coherent memory pool and if so, maps that memory to the provided vma.
+ * coherent memory pool and if so, releases that memory.
  *
- * Returns 1 if we correctly mapped the memory, or 0 if the caller should
- * proceed with mapping memory from generic pools.
+ * Returns 1 if we correctly released the memory, or 0 if the caller should
+ * proceed with releasing memory from generic pools.
  */
-int dma_mmap_from_coherent(struct device *dev, struct vm_area_struct *vma,
-			   void *vaddr, size_t size, int *ret)
+int dma_release_from_dev_coherent(struct device *dev, int order, void *vaddr)
 {
 	struct dma_coherent_mem *mem = dev_get_coherent_memory(dev);
 
+	return __dma_release_from_coherent(mem, order, vaddr);
+}
+EXPORT_SYMBOL(dma_release_from_dev_coherent);
+
+int dma_release_from_global_coherent(int order, void *vaddr)
+{
+	if (!dma_coherent_default_memory)
+		return 0;
+
+	return __dma_release_from_coherent(dma_coherent_default_memory, order,
+			vaddr);
+}
+
+static int __dma_mmap_from_coherent(struct dma_coherent_mem *mem,
+		struct vm_area_struct *vma, void *vaddr, size_t size, int *ret)
+{
 	if (mem && vaddr >= mem->virt_base && vaddr + size <=
 		   (mem->virt_base + (mem->size << PAGE_SHIFT))) {
 		unsigned long off = vma->vm_pgoff;
@@ -296,7 +312,39 @@ int dma_mmap_from_coherent(struct device *dev, struct vm_area_struct *vma,
 	}
 	return 0;
 }
-EXPORT_SYMBOL(dma_mmap_from_coherent);
+
+/**
+ * dma_mmap_from_dev_coherent() - mmap memory from the device coherent pool
+ * @dev:	device from which the memory was allocated
+ * @vma:	vm_area for the userspace memory
+ * @vaddr:	cpu address returned by dma_alloc_from_dev_coherent
+ * @size:	size of the memory buffer allocated
+ * @ret:	result from remap_pfn_range()
+ *
+ * This checks whether the memory was allocated from the per-device
+ * coherent memory pool and if so, maps that memory to the provided vma.
+ *
+ * Returns 1 if we correctly mapped the memory, or 0 if the caller should
+ * proceed with mapping memory from generic pools.
+ */
+int dma_mmap_from_dev_coherent(struct device *dev, struct vm_area_struct *vma,
+			   void *vaddr, size_t size, int *ret)
+{
+	struct dma_coherent_mem *mem = dev_get_coherent_memory(dev);
+
+	return __dma_mmap_from_coherent(mem, vma, vaddr, size, ret);
+}
+EXPORT_SYMBOL(dma_mmap_from_dev_coherent);
+
+int dma_mmap_from_global_coherent(struct vm_area_struct *vma, void *vaddr,
+				   size_t size, int *ret)
+{
+	if (!dma_coherent_default_memory)
+		return 0;
+
+	return __dma_mmap_from_coherent(dma_coherent_default_memory, vma,
+					vaddr, size, ret);
+}
 
 /*
  * Support for reserved memory regions defined in device tree
diff --git a/drivers/base/dma-mapping.c b/drivers/base/dma-mapping.c
index 5096755d185e..b555ff9dd8fc 100644
--- a/drivers/base/dma-mapping.c
+++ b/drivers/base/dma-mapping.c
@@ -235,7 +235,7 @@ int dma_common_mmap(struct device *dev, struct vm_area_struct *vma,
 
 	vma->vm_page_prot = pgprot_noncached(vma->vm_page_prot);
 
-	if (dma_mmap_from_coherent(dev, vma, cpu_addr, size, &ret))
+	if (dma_mmap_from_dev_coherent(dev, vma, cpu_addr, size, &ret))
 		return ret;
 
 	if (off < count && user_count <= (count - off)) {
diff --git a/drivers/base/firmware_class.c b/drivers/base/firmware_class.c
index b9f907eedbf7..bfbe1e154128 100644
--- a/drivers/base/firmware_class.c
+++ b/drivers/base/firmware_class.c
@@ -30,7 +30,6 @@
 #include <linux/syscore_ops.h>
 #include <linux/reboot.h>
 #include <linux/security.h>
-#include <linux/swait.h>
 
 #include <generated/utsrelease.h>
 
@@ -112,13 +111,13 @@ static inline long firmware_loading_timeout(void)
  * state of the firmware loading.
  */
 struct fw_state {
-	struct swait_queue_head wq;
+	struct completion completion;
 	enum fw_status status;
 };
 
 static void fw_state_init(struct fw_state *fw_st)
 {
-	init_swait_queue_head(&fw_st->wq);
+	init_completion(&fw_st->completion);
 	fw_st->status = FW_STATUS_UNKNOWN;
 }
 
@@ -131,9 +130,7 @@ static int __fw_state_wait_common(struct fw_state *fw_st, long timeout)
 {
 	long ret;
 
-	ret = swait_event_interruptible_timeout(fw_st->wq,
-				__fw_state_is_done(READ_ONCE(fw_st->status)),
-				timeout);
+	ret = wait_for_completion_killable_timeout(&fw_st->completion, timeout);
 	if (ret != 0 && fw_st->status == FW_STATUS_ABORTED)
 		return -ENOENT;
 	if (!ret)
@@ -148,35 +145,34 @@ static void __fw_state_set(struct fw_state *fw_st,
 	WRITE_ONCE(fw_st->status, status);
 
 	if (status == FW_STATUS_DONE || status == FW_STATUS_ABORTED)
-		swake_up(&fw_st->wq);
+		complete_all(&fw_st->completion);
 }
 
 #define fw_state_start(fw_st)					\
 	__fw_state_set(fw_st, FW_STATUS_LOADING)
 #define fw_state_done(fw_st)					\
 	__fw_state_set(fw_st, FW_STATUS_DONE)
+#define fw_state_aborted(fw_st)					\
+	__fw_state_set(fw_st, FW_STATUS_ABORTED)
 #define fw_state_wait(fw_st)					\
 	__fw_state_wait_common(fw_st, MAX_SCHEDULE_TIMEOUT)
 
-#ifndef CONFIG_FW_LOADER_USER_HELPER
-
-#define fw_state_is_aborted(fw_st)	false
-
-#else /* CONFIG_FW_LOADER_USER_HELPER */
-
 static int __fw_state_check(struct fw_state *fw_st, enum fw_status status)
 {
 	return fw_st->status == status;
 }
 
+#define fw_state_is_aborted(fw_st)				\
+	__fw_state_check(fw_st, FW_STATUS_ABORTED)
+
+#ifdef CONFIG_FW_LOADER_USER_HELPER
+
 #define fw_state_aborted(fw_st)					\
 	__fw_state_set(fw_st, FW_STATUS_ABORTED)
 #define fw_state_is_done(fw_st)					\
 	__fw_state_check(fw_st, FW_STATUS_DONE)
 #define fw_state_is_loading(fw_st)				\
 	__fw_state_check(fw_st, FW_STATUS_LOADING)
-#define fw_state_is_aborted(fw_st)				\
-	__fw_state_check(fw_st, FW_STATUS_ABORTED)
 #define fw_state_wait_timeout(fw_st, timeout)			\
 	__fw_state_wait_common(fw_st, timeout)
 
@@ -1200,6 +1196,28 @@ _request_firmware_prepare(struct firmware **firmware_p, const char *name,
 	return 1; /* need to load */
 }
 
+/*
+ * Batched requests need only one wake, we need to do this step last due to the
+ * fallback mechanism. The buf is protected with kref_get(), and it won't be
+ * released until the last user calls release_firmware().
+ *
+ * Failed batched requests are possible as well, in such cases we just share
+ * the struct firmware_buf and won't release it until all requests are woken
+ * and have gone through this same path.
+ */
+static void fw_abort_batch_reqs(struct firmware *fw)
+{
+	struct firmware_buf *buf;
+
+	/* Loaded directly? */
+	if (!fw || !fw->priv)
+		return;
+
+	buf = fw->priv;
+	if (!fw_state_is_aborted(&buf->fw_st))
+		fw_state_aborted(&buf->fw_st);
+}
+
 /* called from request_firmware() and request_firmware_work_func() */
 static int
 _request_firmware(const struct firmware **firmware_p, const char *name,
@@ -1243,6 +1261,7 @@ _request_firmware(const struct firmware **firmware_p, const char *name,
 
  out:
 	if (ret < 0) {
+		fw_abort_batch_reqs(fw);
 		release_firmware(fw);
 		fw = NULL;
 	}
diff --git a/drivers/base/power/domain.c b/drivers/base/power/domain.c
index 3b8210ebb50e..60303aa28587 100644
--- a/drivers/base/power/domain.c
+++ b/drivers/base/power/domain.c
@@ -1222,8 +1222,6 @@ static struct generic_pm_domain_data *genpd_alloc_dev_data(struct device *dev,
 
 	spin_unlock_irq(&dev->power.lock);
 
-	dev_pm_domain_set(dev, &genpd->domain);
-
 	return gpd_data;
 
  err_free:
@@ -1237,8 +1235,6 @@ static struct generic_pm_domain_data *genpd_alloc_dev_data(struct device *dev,
 static void genpd_free_dev_data(struct device *dev,
 				struct generic_pm_domain_data *gpd_data)
 {
-	dev_pm_domain_set(dev, NULL);
-
 	spin_lock_irq(&dev->power.lock);
 
 	dev->power.subsys_data->domain_data = NULL;
@@ -1275,6 +1271,8 @@ static int genpd_add_device(struct generic_pm_domain *genpd, struct device *dev,
 	if (ret)
 		goto out;
 
+	dev_pm_domain_set(dev, &genpd->domain);
+
 	genpd->device_count++;
 	genpd->max_off_time_changed = true;
 
@@ -1336,6 +1334,8 @@ static int genpd_remove_device(struct generic_pm_domain *genpd,
 	if (genpd->detach_dev)
 		genpd->detach_dev(genpd, dev);
 
+	dev_pm_domain_set(dev, NULL);
+
 	list_del_init(&pdd->list_node);
 
 	genpd_unlock(genpd);
diff --git a/drivers/base/power/sysfs.c b/drivers/base/power/sysfs.c
index 185a52581cfa..156ab57bca77 100644
--- a/drivers/base/power/sysfs.c
+++ b/drivers/base/power/sysfs.c
@@ -272,6 +272,8 @@ static ssize_t pm_qos_latency_tolerance_store(struct device *dev,
 			value = PM_QOS_LATENCY_TOLERANCE_NO_CONSTRAINT;
 		else if (!strcmp(buf, "any") || !strcmp(buf, "any\n"))
 			value = PM_QOS_LATENCY_ANY;
+		else
+			return -EINVAL;
 	}
 	ret = dev_pm_qos_update_user_latency_tolerance(dev, value);
 	return ret < 0 ? ret : n;
diff --git a/drivers/base/property.c b/drivers/base/property.c
index 692007e5a94b..edf02c1b5845 100644
--- a/drivers/base/property.c
+++ b/drivers/base/property.c
@@ -253,10 +253,10 @@ bool fwnode_property_present(struct fwnode_handle *fwnode, const char *propname)
 {
 	bool ret;
 
-	ret = fwnode_call_int_op(fwnode, property_present, propname);
+	ret = fwnode_call_bool_op(fwnode, property_present, propname);
 	if (ret == false && !IS_ERR_OR_NULL(fwnode) &&
 	    !IS_ERR_OR_NULL(fwnode->secondary))
-		ret = fwnode_call_int_op(fwnode->secondary, property_present,
+		ret = fwnode_call_bool_op(fwnode->secondary, property_present,
 					 propname);
 	return ret;
 }
@@ -1027,7 +1027,7 @@ EXPORT_SYMBOL_GPL(fwnode_handle_put);
  */
 bool fwnode_device_is_available(struct fwnode_handle *fwnode)
 {
-	return fwnode_call_int_op(fwnode, device_is_available);
+	return fwnode_call_bool_op(fwnode, device_is_available);
 }
 EXPORT_SYMBOL_GPL(fwnode_device_is_available);
 
diff --git a/drivers/base/regmap/regmap-w1.c b/drivers/base/regmap/regmap-w1.c
index 5f04e7bf063e..e6c64b0be5b2 100644
--- a/drivers/base/regmap/regmap-w1.c
+++ b/drivers/base/regmap/regmap-w1.c
@@ -1,7 +1,7 @@
 /*
  * Register map access API - W1 (1-Wire) support
  *
- * Copyright (C) 2017 OAO Radioavionica
+ * Copyright (c) 2017 Radioavionica Corporation
  * Author: Alex A. Mihaylov <minimumlaw@rambler.ru>
  *
  * This program is free software; you can redistribute it and/or modify
@@ -11,7 +11,7 @@
 
 #include <linux/regmap.h>
 #include <linux/module.h>
-#include "../../w1/w1.h"
+#include <linux/w1.h>
 
 #include "internal.h"
 
diff --git a/drivers/block/nbd.c b/drivers/block/nbd.c
index dea7d85134ee..5bdf923294a5 100644
--- a/drivers/block/nbd.c
+++ b/drivers/block/nbd.c
@@ -626,7 +626,6 @@ static void recv_work(struct work_struct *work)
 	struct nbd_device *nbd = args->nbd;
 	struct nbd_config *config = nbd->config;
 	struct nbd_cmd *cmd;
-	int ret = 0;
 
 	while (1) {
 		cmd = nbd_read_stat(nbd, args->index);
@@ -636,7 +635,6 @@ static void recv_work(struct work_struct *work)
 			mutex_lock(&nsock->tx_lock);
 			nbd_mark_nsock_dead(nbd, nsock, 1);
 			mutex_unlock(&nsock->tx_lock);
-			ret = PTR_ERR(cmd);
 			break;
 		}
 
@@ -910,7 +908,8 @@ static int nbd_reconnect_socket(struct nbd_device *nbd, unsigned long arg)
 			continue;
 		}
 		sk_set_memalloc(sock->sk);
-		sock->sk->sk_sndtimeo = nbd->tag_set.timeout;
+		if (nbd->tag_set.timeout)
+			sock->sk->sk_sndtimeo = nbd->tag_set.timeout;
 		atomic_inc(&config->recv_threads);
 		refcount_inc(&nbd->config_refs);
 		old = nsock->sock;
@@ -924,6 +923,8 @@ static int nbd_reconnect_socket(struct nbd_device *nbd, unsigned long arg)
 		mutex_unlock(&nsock->tx_lock);
 		sockfd_put(old);
 
+		clear_bit(NBD_DISCONNECTED, &config->runtime_flags);
+
 		/* We take the tx_mutex in an error path in the recv_work, so we
 		 * need to queue_work outside of the tx_mutex.
 		 */
@@ -980,11 +981,15 @@ static void send_disconnects(struct nbd_device *nbd)
 	int i, ret;
 
 	for (i = 0; i < config->num_connections; i++) {
+		struct nbd_sock *nsock = config->socks[i];
+
 		iov_iter_kvec(&from, WRITE | ITER_KVEC, &iov, 1, sizeof(request));
+		mutex_lock(&nsock->tx_lock);
 		ret = sock_xmit(nbd, i, 1, &from, 0, NULL);
 		if (ret <= 0)
 			dev_err(disk_to_dev(nbd->disk),
 				"Send disconnect failed %d\n", ret);
+		mutex_unlock(&nsock->tx_lock);
 	}
 }
 
@@ -993,9 +998,8 @@ static int nbd_disconnect(struct nbd_device *nbd)
 	struct nbd_config *config = nbd->config;
 
 	dev_info(disk_to_dev(nbd->disk), "NBD_DISCONNECT\n");
-	if (!test_and_set_bit(NBD_DISCONNECT_REQUESTED,
-			      &config->runtime_flags))
-		send_disconnects(nbd);
+	set_bit(NBD_DISCONNECT_REQUESTED, &config->runtime_flags);
+	send_disconnects(nbd);
 	return 0;
 }
 
@@ -1076,7 +1080,9 @@ static int nbd_start_device(struct nbd_device *nbd)
 			return -ENOMEM;
 		}
 		sk_set_memalloc(config->socks[i]->sock->sk);
-		config->socks[i]->sock->sk->sk_sndtimeo = nbd->tag_set.timeout;
+		if (nbd->tag_set.timeout)
+			config->socks[i]->sock->sk->sk_sndtimeo =
+				nbd->tag_set.timeout;
 		atomic_inc(&config->recv_threads);
 		refcount_inc(&nbd->config_refs);
 		INIT_WORK(&args->work, recv_work);
diff --git a/drivers/block/sunvdc.c b/drivers/block/sunvdc.c
index 6b16ead1da58..ad9749463d4f 100644
--- a/drivers/block/sunvdc.c
+++ b/drivers/block/sunvdc.c
@@ -875,6 +875,56 @@ static void print_version(void)
 		printk(KERN_INFO "%s", version);
 }
 
+struct vdc_check_port_data {
+	int	dev_no;
+	char	*type;
+};
+
+static int vdc_device_probed(struct device *dev, void *arg)
+{
+	struct vio_dev *vdev = to_vio_dev(dev);
+	struct vdc_check_port_data *port_data;
+
+	port_data = (struct vdc_check_port_data *)arg;
+
+	if ((vdev->dev_no == port_data->dev_no) &&
+	    (!(strcmp((char *)&vdev->type, port_data->type))) &&
+		dev_get_drvdata(dev)) {
+		/* This device has already been configured
+		 * by vdc_port_probe()
+		 */
+		return 1;
+	} else {
+		return 0;
+	}
+}
+
+/* Determine whether the VIO device is part of an mpgroup
+ * by locating all the virtual-device-port nodes associated
+ * with the parent virtual-device node for the VIO device
+ * and checking whether any of these nodes are vdc-ports
+ * which have already been configured.
+ *
+ * Returns true if this device is part of an mpgroup and has
+ * already been probed.
+ */
+static bool vdc_port_mpgroup_check(struct vio_dev *vdev)
+{
+	struct vdc_check_port_data port_data;
+	struct device *dev;
+
+	port_data.dev_no = vdev->dev_no;
+	port_data.type = (char *)&vdev->type;
+
+	dev = device_find_child(vdev->dev.parent, &port_data,
+				vdc_device_probed);
+
+	if (dev)
+		return true;
+
+	return false;
+}
+
 static int vdc_port_probe(struct vio_dev *vdev, const struct vio_device_id *id)
 {
 	struct mdesc_handle *hp;
@@ -893,6 +943,14 @@ static int vdc_port_probe(struct vio_dev *vdev, const struct vio_device_id *id)
 		goto err_out_release_mdesc;
 	}
 
+	/* Check if this device is part of an mpgroup */
+	if (vdc_port_mpgroup_check(vdev)) {
+		printk(KERN_WARNING
+			"VIO: Ignoring extra vdisk port %s",
+			dev_name(&vdev->dev));
+		goto err_out_release_mdesc;
+	}
+
 	port = kzalloc(sizeof(*port), GFP_KERNEL);
 	err = -ENOMEM;
 	if (!port) {
@@ -943,6 +1001,9 @@ static int vdc_port_probe(struct vio_dev *vdev, const struct vio_device_id *id)
 	if (err)
 		goto err_out_free_tx_ring;
 
+	/* Note that the device driver_data is used to determine
+	 * whether the port has been probed.
+	 */
 	dev_set_drvdata(&vdev->dev, port);
 
 	mdesc_release(hp);
diff --git a/drivers/block/virtio_blk.c b/drivers/block/virtio_blk.c
index 4e02aa5fdac0..1498b899a593 100644
--- a/drivers/block/virtio_blk.c
+++ b/drivers/block/virtio_blk.c
@@ -541,12 +541,9 @@ virtblk_cache_type_store(struct device *dev, struct device_attribute *attr,
 	int i;
 
 	BUG_ON(!virtio_has_feature(vblk->vdev, VIRTIO_BLK_F_CONFIG_WCE));
-	for (i = ARRAY_SIZE(virtblk_cache_types); --i >= 0; )
-		if (sysfs_streq(buf, virtblk_cache_types[i]))
-			break;
-
+	i = sysfs_match_string(virtblk_cache_types, buf);
 	if (i < 0)
-		return -EINVAL;
+		return i;
 
 	virtio_cwrite8(vdev, offsetof(struct virtio_blk_config, wce), i);
 	virtblk_update_cache_mode(vdev);
diff --git a/drivers/block/xen-blkfront.c b/drivers/block/xen-blkfront.c
index c852ed3c01d5..2468c28d4771 100644
--- a/drivers/block/xen-blkfront.c
+++ b/drivers/block/xen-blkfront.c
@@ -111,7 +111,7 @@ struct blk_shadow {
 };
 
 struct blkif_req {
-	int	error;
+	blk_status_t	error;
 };
 
 static inline struct blkif_req *blkif_req(struct request *rq)
@@ -708,6 +708,7 @@ static int blkif_queue_rw_req(struct request *req, struct blkfront_ring_info *ri
 	 * existing persistent grants, or if we have to get new grants,
 	 * as there are not sufficiently many free.
 	 */
+	bool new_persistent_gnts = false;
 	struct scatterlist *sg;
 	int num_sg, max_grefs, num_grant;
 
@@ -719,19 +720,21 @@ static int blkif_queue_rw_req(struct request *req, struct blkfront_ring_info *ri
 		 */
 		max_grefs += INDIRECT_GREFS(max_grefs);
 
-	/*
-	 * We have to reserve 'max_grefs' grants because persistent
-	 * grants are shared by all rings.
-	 */
-	if (max_grefs > 0)
-		if (gnttab_alloc_grant_references(max_grefs, &setup.gref_head) < 0) {
+	/* Check if we have enough persistent grants to allocate a requests */
+	if (rinfo->persistent_gnts_c < max_grefs) {
+		new_persistent_gnts = true;
+
+		if (gnttab_alloc_grant_references(
+		    max_grefs - rinfo->persistent_gnts_c,
+		    &setup.gref_head) < 0) {
 			gnttab_request_free_callback(
 				&rinfo->callback,
 				blkif_restart_queue_callback,
 				rinfo,
-				max_grefs);
+				max_grefs - rinfo->persistent_gnts_c);
 			return 1;
 		}
+	}
 
 	/* Fill out a communications ring structure. */
 	id = blkif_ring_get_request(rinfo, req, &ring_req);
@@ -832,7 +835,7 @@ static int blkif_queue_rw_req(struct request *req, struct blkfront_ring_info *ri
 	if (unlikely(require_extra_req))
 		rinfo->shadow[extra_id].req = *extra_ring_req;
 
-	if (max_grefs > 0)
+	if (new_persistent_gnts)
 		gnttab_free_grant_references(setup.gref_head);
 
 	return 0;
@@ -906,8 +909,8 @@ out_err:
 	return BLK_STS_IOERR;
 
 out_busy:
-	spin_unlock_irqrestore(&rinfo->ring_lock, flags);
 	blk_mq_stop_hw_queue(hctx);
+	spin_unlock_irqrestore(&rinfo->ring_lock, flags);
 	return BLK_STS_RESOURCE;
 }
 
@@ -1616,7 +1619,7 @@ static irqreturn_t blkif_interrupt(int irq, void *dev_id)
 			if (unlikely(bret->status == BLKIF_RSP_EOPNOTSUPP)) {
 				printk(KERN_WARNING "blkfront: %s: %s op failed\n",
 				       info->gd->disk_name, op_name(bret->operation));
-				blkif_req(req)->error = -EOPNOTSUPP;
+				blkif_req(req)->error = BLK_STS_NOTSUPP;
 			}
 			if (unlikely(bret->status == BLKIF_RSP_ERROR &&
 				     rinfo->shadow[id].req.u.rw.nr_segments == 0)) {
@@ -2072,9 +2075,9 @@ static int blkfront_resume(struct xenbus_device *dev)
 			/*
 			 * Get the bios in the request so we can re-queue them.
 			 */
-			if (req_op(shadow[i].request) == REQ_OP_FLUSH ||
-			    req_op(shadow[i].request) == REQ_OP_DISCARD ||
-			    req_op(shadow[i].request) == REQ_OP_SECURE_ERASE ||
+			if (req_op(shadow[j].request) == REQ_OP_FLUSH ||
+			    req_op(shadow[j].request) == REQ_OP_DISCARD ||
+			    req_op(shadow[j].request) == REQ_OP_SECURE_ERASE ||
 			    shadow[j].request->cmd_flags & REQ_FUA) {
 				/*
 				 * Flush operations don't contain bios, so
diff --git a/drivers/block/zram/zram_drv.c b/drivers/block/zram/zram_drv.c
index 856d5dc02451..3b1b6340ba13 100644
--- a/drivers/block/zram/zram_drv.c
+++ b/drivers/block/zram/zram_drv.c
@@ -308,7 +308,7 @@ static ssize_t comp_algorithm_store(struct device *dev,
 		struct device_attribute *attr, const char *buf, size_t len)
 {
 	struct zram *zram = dev_to_zram(dev);
-	char compressor[CRYPTO_MAX_ALG_NAME];
+	char compressor[ARRAY_SIZE(zram->compressor)];
 	size_t sz;
 
 	strlcpy(compressor, buf, sizeof(compressor));
@@ -327,7 +327,7 @@ static ssize_t comp_algorithm_store(struct device *dev,
 		return -EBUSY;
 	}
 
-	strlcpy(zram->compressor, compressor, sizeof(compressor));
+	strcpy(zram->compressor, compressor);
 	up_write(&zram->init_lock);
 	return len;
 }
diff --git a/drivers/bus/uniphier-system-bus.c b/drivers/bus/uniphier-system-bus.c
index 1e6e0269edcc..f76be6bd6eb3 100644
--- a/drivers/bus/uniphier-system-bus.c
+++ b/drivers/bus/uniphier-system-bus.c
@@ -256,10 +256,23 @@ static int uniphier_system_bus_probe(struct platform_device *pdev)
 
 	uniphier_system_bus_set_reg(priv);
 
+	platform_set_drvdata(pdev, priv);
+
 	/* Now, the bus is configured.  Populate platform_devices below it */
 	return of_platform_default_populate(dev->of_node, NULL, dev);
 }
 
+static int __maybe_unused uniphier_system_bus_resume(struct device *dev)
+{
+	uniphier_system_bus_set_reg(dev_get_drvdata(dev));
+
+	return 0;
+}
+
+static const struct dev_pm_ops uniphier_system_bus_pm_ops = {
+	SET_SYSTEM_SLEEP_PM_OPS(NULL, uniphier_system_bus_resume)
+};
+
 static const struct of_device_id uniphier_system_bus_match[] = {
 	{ .compatible = "socionext,uniphier-system-bus" },
 	{ /* sentinel */ }
@@ -271,6 +284,7 @@ static struct platform_driver uniphier_system_bus_driver = {
 	.driver = {
 		.name	= "uniphier-system-bus",
 		.of_match_table = uniphier_system_bus_match,
+		.pm = &uniphier_system_bus_pm_ops,
 	},
 };
 module_platform_driver(uniphier_system_bus_driver);
diff --git a/drivers/char/random.c b/drivers/char/random.c
index 01a260f67437..8ad92707e45f 100644
--- a/drivers/char/random.c
+++ b/drivers/char/random.c
@@ -288,7 +288,6 @@
 #define SEC_XFER_SIZE		512
 #define EXTRACT_SIZE		10
 
-#define DEBUG_RANDOM_BOOT 0
 
 #define LONGS(x) (((x) + sizeof(unsigned long) - 1)/sizeof(unsigned long))
 
@@ -437,6 +436,7 @@ static void _extract_crng(struct crng_state *crng,
 static void _crng_backtrack_protect(struct crng_state *crng,
 				    __u8 tmp[CHACHA20_BLOCK_SIZE], int used);
 static void process_random_ready_list(void);
+static void _get_random_bytes(void *buf, int nbytes);
 
 /**********************************************************************
  *
@@ -777,7 +777,7 @@ static void crng_initialize(struct crng_state *crng)
 		_extract_entropy(&input_pool, &crng->state[4],
 				 sizeof(__u32) * 12, 0);
 	else
-		get_random_bytes(&crng->state[4], sizeof(__u32) * 12);
+		_get_random_bytes(&crng->state[4], sizeof(__u32) * 12);
 	for (i = 4; i < 16; i++) {
 		if (!arch_get_random_seed_long(&rv) &&
 		    !arch_get_random_long(&rv))
@@ -851,11 +851,6 @@ static void crng_reseed(struct crng_state *crng, struct entropy_store *r)
 	}
 }
 
-static inline void crng_wait_ready(void)
-{
-	wait_event_interruptible(crng_init_wait, crng_ready());
-}
-
 static void _extract_crng(struct crng_state *crng,
 			  __u8 out[CHACHA20_BLOCK_SIZE])
 {
@@ -987,6 +982,11 @@ void add_device_randomness(const void *buf, unsigned int size)
 	unsigned long time = random_get_entropy() ^ jiffies;
 	unsigned long flags;
 
+	if (!crng_ready()) {
+		crng_fast_load(buf, size);
+		return;
+	}
+
 	trace_add_device_randomness(size, _RET_IP_);
 	spin_lock_irqsave(&input_pool.lock, flags);
 	_mix_pool_bytes(&input_pool, buf, size);
@@ -1472,22 +1472,44 @@ static ssize_t extract_entropy_user(struct entropy_store *r, void __user *buf,
 	return ret;
 }
 
+#define warn_unseeded_randomness(previous) \
+	_warn_unseeded_randomness(__func__, (void *) _RET_IP_, (previous))
+
+static void _warn_unseeded_randomness(const char *func_name, void *caller,
+				      void **previous)
+{
+#ifdef CONFIG_WARN_ALL_UNSEEDED_RANDOM
+	const bool print_once = false;
+#else
+	static bool print_once __read_mostly;
+#endif
+
+	if (print_once ||
+	    crng_ready() ||
+	    (previous && (caller == READ_ONCE(*previous))))
+		return;
+	WRITE_ONCE(*previous, caller);
+#ifndef CONFIG_WARN_ALL_UNSEEDED_RANDOM
+	print_once = true;
+#endif
+	pr_notice("random: %s called from %pS with crng_init=%d\n",
+		  func_name, caller, crng_init);
+}
+
 /*
  * This function is the exported kernel interface.  It returns some
  * number of good random numbers, suitable for key generation, seeding
  * TCP sequence numbers, etc.  It does not rely on the hardware random
  * number generator.  For random bytes direct from the hardware RNG
- * (when available), use get_random_bytes_arch().
+ * (when available), use get_random_bytes_arch(). In order to ensure
+ * that the randomness provided by this function is okay, the function
+ * wait_for_random_bytes() should be called and return 0 at least once
+ * at any point prior.
  */
-void get_random_bytes(void *buf, int nbytes)
+static void _get_random_bytes(void *buf, int nbytes)
 {
 	__u8 tmp[CHACHA20_BLOCK_SIZE];
 
-#if DEBUG_RANDOM_BOOT > 0
-	if (!crng_ready())
-		printk(KERN_NOTICE "random: %pF get_random_bytes called "
-		       "with crng_init = %d\n", (void *) _RET_IP_, crng_init);
-#endif
 	trace_get_random_bytes(nbytes, _RET_IP_);
 
 	while (nbytes >= CHACHA20_BLOCK_SIZE) {
@@ -1504,9 +1526,35 @@ void get_random_bytes(void *buf, int nbytes)
 		crng_backtrack_protect(tmp, CHACHA20_BLOCK_SIZE);
 	memzero_explicit(tmp, sizeof(tmp));
 }
+
+void get_random_bytes(void *buf, int nbytes)
+{
+	static void *previous;
+
+	warn_unseeded_randomness(&previous);
+	_get_random_bytes(buf, nbytes);
+}
 EXPORT_SYMBOL(get_random_bytes);
 
 /*
+ * Wait for the urandom pool to be seeded and thus guaranteed to supply
+ * cryptographically secure random numbers. This applies to: the /dev/urandom
+ * device, the get_random_bytes function, and the get_random_{u32,u64,int,long}
+ * family of functions. Using any of these functions without first calling
+ * this function forfeits the guarantee of security.
+ *
+ * Returns: 0 if the urandom pool has been seeded.
+ *          -ERESTARTSYS if the function was interrupted by a signal.
+ */
+int wait_for_random_bytes(void)
+{
+	if (likely(crng_ready()))
+		return 0;
+	return wait_event_interruptible(crng_init_wait, crng_ready());
+}
+EXPORT_SYMBOL(wait_for_random_bytes);
+
+/*
  * Add a callback function that will be invoked when the nonblocking
  * pool is initialised.
  *
@@ -1860,6 +1908,8 @@ const struct file_operations urandom_fops = {
 SYSCALL_DEFINE3(getrandom, char __user *, buf, size_t, count,
 		unsigned int, flags)
 {
+	int ret;
+
 	if (flags & ~(GRND_NONBLOCK|GRND_RANDOM))
 		return -EINVAL;
 
@@ -1872,9 +1922,9 @@ SYSCALL_DEFINE3(getrandom, char __user *, buf, size_t, count,
 	if (!crng_ready()) {
 		if (flags & GRND_NONBLOCK)
 			return -EAGAIN;
-		crng_wait_ready();
-		if (signal_pending(current))
-			return -ERESTARTSYS;
+		ret = wait_for_random_bytes();
+		if (unlikely(ret))
+			return ret;
 	}
 	return urandom_read(NULL, buf, count, NULL);
 }
@@ -2035,15 +2085,19 @@ static rwlock_t batched_entropy_reset_lock = __RW_LOCK_UNLOCKED(batched_entropy_
 /*
  * Get a random word for internal kernel use only. The quality of the random
  * number is either as good as RDRAND or as good as /dev/urandom, with the
- * goal of being quite fast and not depleting entropy.
+ * goal of being quite fast and not depleting entropy. In order to ensure
+ * that the randomness provided by this function is okay, the function
+ * wait_for_random_bytes() should be called and return 0 at least once
+ * at any point prior.
  */
 static DEFINE_PER_CPU(struct batched_entropy, batched_entropy_u64);
 u64 get_random_u64(void)
 {
 	u64 ret;
-	bool use_lock = READ_ONCE(crng_init) < 2;
+	bool use_lock;
 	unsigned long flags = 0;
 	struct batched_entropy *batch;
+	static void *previous;
 
 #if BITS_PER_LONG == 64
 	if (arch_get_random_long((unsigned long *)&ret))
@@ -2054,6 +2108,9 @@ u64 get_random_u64(void)
 	    return ret;
 #endif
 
+	warn_unseeded_randomness(&previous);
+
+	use_lock = READ_ONCE(crng_init) < 2;
 	batch = &get_cpu_var(batched_entropy_u64);
 	if (use_lock)
 		read_lock_irqsave(&batched_entropy_reset_lock, flags);
@@ -2073,13 +2130,17 @@ static DEFINE_PER_CPU(struct batched_entropy, batched_entropy_u32);
 u32 get_random_u32(void)
 {
 	u32 ret;
-	bool use_lock = READ_ONCE(crng_init) < 2;
+	bool use_lock;
 	unsigned long flags = 0;
 	struct batched_entropy *batch;
+	static void *previous;
 
 	if (arch_get_random_int(&ret))
 		return ret;
 
+	warn_unseeded_randomness(&previous);
+
+	use_lock = READ_ONCE(crng_init) < 2;
 	batch = &get_cpu_var(batched_entropy_u32);
 	if (use_lock)
 		read_lock_irqsave(&batched_entropy_reset_lock, flags);
diff --git a/drivers/clk/Kconfig b/drivers/clk/Kconfig
index d406b087553f..68ca2d9fcd73 100644
--- a/drivers/clk/Kconfig
+++ b/drivers/clk/Kconfig
@@ -221,6 +221,7 @@ config COMMON_CLK_VC5
 
 source "drivers/clk/bcm/Kconfig"
 source "drivers/clk/hisilicon/Kconfig"
+source "drivers/clk/imgtec/Kconfig"
 source "drivers/clk/keystone/Kconfig"
 source "drivers/clk/mediatek/Kconfig"
 source "drivers/clk/meson/Kconfig"
diff --git a/drivers/clk/Makefile b/drivers/clk/Makefile
index 4f6a812342ed..cd376b3fb47a 100644
--- a/drivers/clk/Makefile
+++ b/drivers/clk/Makefile
@@ -60,6 +60,7 @@ obj-y					+= bcm/
 obj-$(CONFIG_ARCH_BERLIN)		+= berlin/
 obj-$(CONFIG_H8300)			+= h8300/
 obj-$(CONFIG_ARCH_HISI)			+= hisilicon/
+obj-y					+= imgtec/
 obj-$(CONFIG_ARCH_MXC)			+= imx/
 obj-$(CONFIG_MACH_INGENIC)		+= ingenic/
 obj-$(CONFIG_ARCH_KEYSTONE)		+= keystone/
diff --git a/drivers/clk/clk-gemini.c b/drivers/clk/clk-gemini.c
index c391a49aaaff..b4cf2f699a21 100644
--- a/drivers/clk/clk-gemini.c
+++ b/drivers/clk/clk-gemini.c
@@ -237,6 +237,18 @@ static int gemini_reset(struct reset_controller_dev *rcdev,
 			    BIT(GEMINI_RESET_CPU1) | BIT(id));
 }
 
+static int gemini_reset_assert(struct reset_controller_dev *rcdev,
+			       unsigned long id)
+{
+	return 0;
+}
+
+static int gemini_reset_deassert(struct reset_controller_dev *rcdev,
+				 unsigned long id)
+{
+	return 0;
+}
+
 static int gemini_reset_status(struct reset_controller_dev *rcdev,
 			     unsigned long id)
 {
@@ -253,6 +265,8 @@ static int gemini_reset_status(struct reset_controller_dev *rcdev,
 
 static const struct reset_control_ops gemini_reset_ops = {
 	.reset = gemini_reset,
+	.assert = gemini_reset_assert,
+	.deassert = gemini_reset_deassert,
 	.status = gemini_reset_status,
 };
 
diff --git a/drivers/clk/imgtec/Kconfig b/drivers/clk/imgtec/Kconfig
new file mode 100644
index 000000000000..f6dcb748e9c4
--- /dev/null
+++ b/drivers/clk/imgtec/Kconfig
@@ -0,0 +1,9 @@
+config COMMON_CLK_BOSTON
+	bool "Clock driver for MIPS Boston boards"
+	depends on MIPS || COMPILE_TEST
+	select MFD_SYSCON
+	---help---
+	  Enable this to support the system & CPU clocks on the MIPS Boston
+	  development board from Imagination Technologies. These are simple
+	  fixed rate clocks whose rate is determined by reading a platform
+	  provided register.
diff --git a/drivers/clk/imgtec/Makefile b/drivers/clk/imgtec/Makefile
new file mode 100644
index 000000000000..ac779b8c22f2
--- /dev/null
+++ b/drivers/clk/imgtec/Makefile
@@ -0,0 +1 @@
+obj-$(CONFIG_COMMON_CLK_BOSTON)		+= clk-boston.o
diff --git a/drivers/clk/imgtec/clk-boston.c b/drivers/clk/imgtec/clk-boston.c
new file mode 100644
index 000000000000..f18f10351785
--- /dev/null
+++ b/drivers/clk/imgtec/clk-boston.c
@@ -0,0 +1,103 @@
+/*
+ * Copyright (C) 2016-2017 Imagination Technologies
+ * Author: Paul Burton <paul.burton@imgtec.com>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation;  either version 2 of the  License, or (at your
+ * option) any later version.
+ */
+
+#define pr_fmt(fmt) "clk-boston: " fmt
+
+#include <linux/clk-provider.h>
+#include <linux/kernel.h>
+#include <linux/of.h>
+#include <linux/regmap.h>
+#include <linux/slab.h>
+#include <linux/mfd/syscon.h>
+
+#include <dt-bindings/clock/boston-clock.h>
+
+#define BOSTON_PLAT_MMCMDIV		0x30
+# define BOSTON_PLAT_MMCMDIV_CLK0DIV	(0xff << 0)
+# define BOSTON_PLAT_MMCMDIV_INPUT	(0xff << 8)
+# define BOSTON_PLAT_MMCMDIV_MUL	(0xff << 16)
+# define BOSTON_PLAT_MMCMDIV_CLK1DIV	(0xff << 24)
+
+#define BOSTON_CLK_COUNT 3
+
+static u32 ext_field(u32 val, u32 mask)
+{
+	return (val & mask) >> (ffs(mask) - 1);
+}
+
+static void __init clk_boston_setup(struct device_node *np)
+{
+	unsigned long in_freq, cpu_freq, sys_freq;
+	uint mmcmdiv, mul, cpu_div, sys_div;
+	struct clk_hw_onecell_data *onecell;
+	struct regmap *regmap;
+	struct clk_hw *hw;
+	int err;
+
+	regmap = syscon_node_to_regmap(np->parent);
+	if (IS_ERR(regmap)) {
+		pr_err("failed to find regmap\n");
+		return;
+	}
+
+	err = regmap_read(regmap, BOSTON_PLAT_MMCMDIV, &mmcmdiv);
+	if (err) {
+		pr_err("failed to read mmcm_div register: %d\n", err);
+		return;
+	}
+
+	in_freq = ext_field(mmcmdiv, BOSTON_PLAT_MMCMDIV_INPUT) * 1000000;
+	mul = ext_field(mmcmdiv, BOSTON_PLAT_MMCMDIV_MUL);
+
+	sys_div = ext_field(mmcmdiv, BOSTON_PLAT_MMCMDIV_CLK0DIV);
+	sys_freq = mult_frac(in_freq, mul, sys_div);
+
+	cpu_div = ext_field(mmcmdiv, BOSTON_PLAT_MMCMDIV_CLK1DIV);
+	cpu_freq = mult_frac(in_freq, mul, cpu_div);
+
+	onecell = kzalloc(sizeof(*onecell) +
+			  (BOSTON_CLK_COUNT * sizeof(struct clk_hw *)),
+			  GFP_KERNEL);
+	if (!onecell)
+		return;
+
+	onecell->num = BOSTON_CLK_COUNT;
+
+	hw = clk_hw_register_fixed_rate(NULL, "input", NULL, 0, in_freq);
+	if (IS_ERR(hw)) {
+		pr_err("failed to register input clock: %ld\n", PTR_ERR(hw));
+		return;
+	}
+	onecell->hws[BOSTON_CLK_INPUT] = hw;
+
+	hw = clk_hw_register_fixed_rate(NULL, "sys", "input", 0, sys_freq);
+	if (IS_ERR(hw)) {
+		pr_err("failed to register sys clock: %ld\n", PTR_ERR(hw));
+		return;
+	}
+	onecell->hws[BOSTON_CLK_SYS] = hw;
+
+	hw = clk_hw_register_fixed_rate(NULL, "cpu", "input", 0, cpu_freq);
+	if (IS_ERR(hw)) {
+		pr_err("failed to register cpu clock: %ld\n", PTR_ERR(hw));
+		return;
+	}
+	onecell->hws[BOSTON_CLK_CPU] = hw;
+
+	err = of_clk_add_hw_provider(np, of_clk_hw_onecell_get, onecell);
+	if (err)
+		pr_err("failed to add DT provider: %d\n", err);
+}
+
+/*
+ * Use CLK_OF_DECLARE so that this driver is probed early enough to provide the
+ * CPU frequency for use with the GIC or cop0 counters/timers.
+ */
+CLK_OF_DECLARE(clk_boston, "img,boston-clock", clk_boston_setup);
diff --git a/drivers/clk/keystone/sci-clk.c b/drivers/clk/keystone/sci-clk.c
index 43b0f2f08df2..9cdf9d5050ac 100644
--- a/drivers/clk/keystone/sci-clk.c
+++ b/drivers/clk/keystone/sci-clk.c
@@ -22,6 +22,7 @@
 #include <linux/platform_device.h>
 #include <linux/slab.h>
 #include <linux/soc/ti/ti_sci_protocol.h>
+#include <linux/bsearch.h>
 
 #define SCI_CLK_SSC_ENABLE		BIT(0)
 #define SCI_CLK_ALLOW_FREQ_CHANGE	BIT(1)
@@ -44,6 +45,7 @@ struct sci_clk_data {
  * @dev: Device pointer for the clock provider
  * @clk_data: Clock data
  * @clocks: Clocks array for this device
+ * @num_clocks: Total number of clocks for this provider
  */
 struct sci_clk_provider {
 	const struct ti_sci_handle *sci;
@@ -51,6 +53,7 @@ struct sci_clk_provider {
 	struct device *dev;
 	const struct sci_clk_data *clk_data;
 	struct clk_hw **clocks;
+	int num_clocks;
 };
 
 /**
@@ -58,7 +61,6 @@ struct sci_clk_provider {
  * @hw:		 Hardware clock cookie for common clock framework
  * @dev_id:	 Device index
  * @clk_id:	 Clock index
- * @node:	 Clocks list link
  * @provider:	 Master clock provider
  * @flags:	 Flags for the clock
  */
@@ -66,7 +68,6 @@ struct sci_clk {
 	struct clk_hw hw;
 	u16 dev_id;
 	u8 clk_id;
-	struct list_head node;
 	struct sci_clk_provider *provider;
 	u8 flags;
 };
@@ -367,6 +368,19 @@ err:
 	return &sci_clk->hw;
 }
 
+static int _cmp_sci_clk(const void *a, const void *b)
+{
+	const struct sci_clk *ca = a;
+	const struct sci_clk *cb = *(struct sci_clk **)b;
+
+	if (ca->dev_id == cb->dev_id && ca->clk_id == cb->clk_id)
+		return 0;
+	if (ca->dev_id > cb->dev_id ||
+	    (ca->dev_id == cb->dev_id && ca->clk_id > cb->clk_id))
+		return 1;
+	return -1;
+}
+
 /**
  * sci_clk_get - Xlate function for getting clock handles
  * @clkspec: device tree clock specifier
@@ -380,29 +394,22 @@ err:
 static struct clk_hw *sci_clk_get(struct of_phandle_args *clkspec, void *data)
 {
 	struct sci_clk_provider *provider = data;
-	u16 dev_id;
-	u8 clk_id;
-	const struct sci_clk_data *clks = provider->clk_data;
-	struct clk_hw **clocks = provider->clocks;
+	struct sci_clk **clk;
+	struct sci_clk key;
 
 	if (clkspec->args_count != 2)
 		return ERR_PTR(-EINVAL);
 
-	dev_id = clkspec->args[0];
-	clk_id = clkspec->args[1];
+	key.dev_id = clkspec->args[0];
+	key.clk_id = clkspec->args[1];
 
-	while (clks->num_clks) {
-		if (clks->dev == dev_id) {
-			if (clk_id >= clks->num_clks)
-				return ERR_PTR(-EINVAL);
-
-			return clocks[clk_id];
-		}
+	clk = bsearch(&key, provider->clocks, provider->num_clocks,
+		      sizeof(clk), _cmp_sci_clk);
 
-		clks++;
-	}
+	if (!clk)
+		return ERR_PTR(-ENODEV);
 
-	return ERR_PTR(-ENODEV);
+	return &(*clk)->hw;
 }
 
 static int ti_sci_init_clocks(struct sci_clk_provider *p)
@@ -410,18 +417,29 @@ static int ti_sci_init_clocks(struct sci_clk_provider *p)
 	const struct sci_clk_data *data = p->clk_data;
 	struct clk_hw *hw;
 	int i;
+	int num_clks = 0;
 
 	while (data->num_clks) {
-		p->clocks = devm_kcalloc(p->dev, data->num_clks,
-					 sizeof(struct sci_clk),
-					 GFP_KERNEL);
-		if (!p->clocks)
-			return -ENOMEM;
+		num_clks += data->num_clks;
+		data++;
+	}
 
+	p->num_clocks = num_clks;
+
+	p->clocks = devm_kcalloc(p->dev, num_clks, sizeof(struct sci_clk),
+				 GFP_KERNEL);
+	if (!p->clocks)
+		return -ENOMEM;
+
+	num_clks = 0;
+
+	data = p->clk_data;
+
+	while (data->num_clks) {
 		for (i = 0; i < data->num_clks; i++) {
 			hw = _sci_clk_build(p, data->dev, i);
 			if (!IS_ERR(hw)) {
-				p->clocks[i] = hw;
+				p->clocks[num_clks++] = hw;
 				continue;
 			}
 
diff --git a/drivers/clk/meson/clk-mpll.c b/drivers/clk/meson/clk-mpll.c
index 39eab69fe51a..44a5a535ca63 100644
--- a/drivers/clk/meson/clk-mpll.c
+++ b/drivers/clk/meson/clk-mpll.c
@@ -161,6 +161,13 @@ static int mpll_set_rate(struct clk_hw *hw,
 	reg = PARM_SET(p->width, p->shift, reg, 1);
 	writel(reg, mpll->base + p->reg_off);
 
+	p = &mpll->ssen;
+	if (p->width != 0) {
+		reg = readl(mpll->base + p->reg_off);
+		reg = PARM_SET(p->width, p->shift, reg, 1);
+		writel(reg, mpll->base + p->reg_off);
+	}
+
 	p = &mpll->n2;
 	reg = readl(mpll->base + p->reg_off);
 	reg = PARM_SET(p->width, p->shift, reg, n2);
diff --git a/drivers/clk/meson/clkc.h b/drivers/clk/meson/clkc.h
index d6feafe8bd6c..1629da9b4141 100644
--- a/drivers/clk/meson/clkc.h
+++ b/drivers/clk/meson/clkc.h
@@ -118,6 +118,7 @@ struct meson_clk_mpll {
 	struct parm sdm_en;
 	struct parm n2;
 	struct parm en;
+	struct parm ssen;
 	spinlock_t *lock;
 };
 
diff --git a/drivers/clk/meson/gxbb.c b/drivers/clk/meson/gxbb.c
index a897ea45327c..a7ea5f3da89d 100644
--- a/drivers/clk/meson/gxbb.c
+++ b/drivers/clk/meson/gxbb.c
@@ -528,6 +528,11 @@ static struct meson_clk_mpll gxbb_mpll0 = {
 		.shift   = 14,
 		.width	 = 1,
 	},
+	.ssen = {
+		.reg_off = HHI_MPLL_CNTL,
+		.shift   = 25,
+		.width	 = 1,
+	},
 	.lock = &clk_lock,
 	.hw.init = &(struct clk_init_data){
 		.name = "mpll0",
diff --git a/drivers/clk/meson/meson8b.c b/drivers/clk/meson/meson8b.c
index bb3f1de876b1..6ec512ad2598 100644
--- a/drivers/clk/meson/meson8b.c
+++ b/drivers/clk/meson/meson8b.c
@@ -267,6 +267,11 @@ static struct meson_clk_mpll meson8b_mpll0 = {
 		.shift   = 14,
 		.width   = 1,
 	},
+	.ssen = {
+		.reg_off = HHI_MPLL_CNTL,
+		.shift   = 25,
+		.width   = 1,
+	},
 	.lock = &clk_lock,
 	.hw.init = &(struct clk_init_data){
 		.name = "mpll0",
diff --git a/drivers/clk/samsung/clk-exynos5420.c b/drivers/clk/samsung/clk-exynos5420.c
index 0748a0b333c5..9a6476aa7d81 100644
--- a/drivers/clk/samsung/clk-exynos5420.c
+++ b/drivers/clk/samsung/clk-exynos5420.c
@@ -1283,16 +1283,16 @@ static const struct samsung_pll_rate_table exynos5420_pll2550x_24mhz_tbl[] __ini
 static const struct samsung_pll_rate_table exynos5420_epll_24mhz_tbl[] = {
 	PLL_36XX_RATE(600000000U, 100, 2, 1, 0),
 	PLL_36XX_RATE(400000000U, 200, 3, 2, 0),
-	PLL_36XX_RATE(393216000U, 197, 3, 2, 25690),
-	PLL_36XX_RATE(361267200U, 301, 5, 2, 3671),
+	PLL_36XX_RATE(393216003U, 197, 3, 2, -25690),
+	PLL_36XX_RATE(361267218U, 301, 5, 2, 3671),
 	PLL_36XX_RATE(200000000U, 200, 3, 3, 0),
-	PLL_36XX_RATE(196608000U, 197, 3, 3, -25690),
-	PLL_36XX_RATE(180633600U, 301, 5, 3, 3671),
-	PLL_36XX_RATE(131072000U, 131, 3, 3, 4719),
+	PLL_36XX_RATE(196608001U, 197, 3, 3, -25690),
+	PLL_36XX_RATE(180633609U, 301, 5, 3, 3671),
+	PLL_36XX_RATE(131072006U, 131, 3, 3, 4719),
 	PLL_36XX_RATE(100000000U, 200, 3, 4, 0),
-	PLL_36XX_RATE(65536000U, 131, 3, 4, 4719),
-	PLL_36XX_RATE(49152000U, 197, 3, 5, 25690),
-	PLL_36XX_RATE(32768000U, 131, 3, 5, 4719),
+	PLL_36XX_RATE( 65536003U, 131, 3, 4, 4719),
+	PLL_36XX_RATE( 49152000U, 197, 3, 5, -25690),
+	PLL_36XX_RATE( 32768001U, 131, 3, 5, 4719),
 };
 
 static struct samsung_pll_clock exynos5x_plls[nr_plls] __initdata = {
diff --git a/drivers/clk/sunxi-ng/ccu-sun5i.c b/drivers/clk/sunxi-ng/ccu-sun5i.c
index 5372bf8be5e6..31d7ffda9aab 100644
--- a/drivers/clk/sunxi-ng/ccu-sun5i.c
+++ b/drivers/clk/sunxi-ng/ccu-sun5i.c
@@ -184,7 +184,7 @@ static struct ccu_mux cpu_clk = {
 		.hw.init	= CLK_HW_INIT_PARENTS("cpu",
 						      cpu_parents,
 						      &ccu_mux_ops,
-						      CLK_IS_CRITICAL),
+						      CLK_SET_RATE_PARENT | CLK_IS_CRITICAL),
 	}
 };
 
diff --git a/drivers/clk/x86/clk-pmc-atom.c b/drivers/clk/x86/clk-pmc-atom.c
index f99abc1106f0..08ef69945ffb 100644
--- a/drivers/clk/x86/clk-pmc-atom.c
+++ b/drivers/clk/x86/clk-pmc-atom.c
@@ -186,6 +186,13 @@ static struct clk_plt *plt_clk_register(struct platform_device *pdev, int id,
 	pclk->reg = base + PMC_CLK_CTL_OFFSET + id * PMC_CLK_CTL_SIZE;
 	spin_lock_init(&pclk->lock);
 
+	/*
+	 * If the clock was already enabled by the firmware mark it as critical
+	 * to avoid it being gated by the clock framework if no driver owns it.
+	 */
+	if (plt_clk_is_enabled(&pclk->hw))
+		init.flags |= CLK_IS_CRITICAL;
+
 	ret = devm_clk_hw_register(&pdev->dev, &pclk->hw);
 	if (ret) {
 		pclk = ERR_PTR(ret);
diff --git a/drivers/clocksource/Kconfig b/drivers/clocksource/Kconfig
index fcae5ca6ac92..54a67f8a28eb 100644
--- a/drivers/clocksource/Kconfig
+++ b/drivers/clocksource/Kconfig
@@ -262,7 +262,7 @@ config CLKSRC_LPC32XX
 
 config CLKSRC_PISTACHIO
 	bool "Clocksource for Pistachio SoC" if COMPILE_TEST
-	depends on HAS_IOMEM
+	depends on GENERIC_CLOCKEVENTS && HAS_IOMEM
 	select TIMER_OF
 	help
 	  Enables the clocksource for the Pistachio SoC.
diff --git a/drivers/clocksource/arm_arch_timer.c b/drivers/clocksource/arm_arch_timer.c
index aae87c4c546e..72bbfccef113 100644
--- a/drivers/clocksource/arm_arch_timer.c
+++ b/drivers/clocksource/arm_arch_timer.c
@@ -1440,7 +1440,7 @@ static int __init arch_timer_mem_acpi_init(int platform_timer_count)
 	 * While unlikely, it's theoretically possible that none of the frames
 	 * in a timer expose the combination of feature we want.
 	 */
-	for (i = i; i < timer_count; i++) {
+	for (i = 0; i < timer_count; i++) {
 		timer = &timers[i];
 
 		frame = arch_timer_mem_find_best_frame(timer);
diff --git a/drivers/clocksource/em_sti.c b/drivers/clocksource/em_sti.c
index bc48cbf6a795..269db74a0658 100644
--- a/drivers/clocksource/em_sti.c
+++ b/drivers/clocksource/em_sti.c
@@ -305,7 +305,7 @@ static int em_sti_probe(struct platform_device *pdev)
 	irq = platform_get_irq(pdev, 0);
 	if (irq < 0) {
 		dev_err(&pdev->dev, "failed to get irq\n");
-		return -EINVAL;
+		return irq;
 	}
 
 	/* map memory, let base point to the STI instance */
@@ -314,11 +314,12 @@ static int em_sti_probe(struct platform_device *pdev)
 	if (IS_ERR(p->base))
 		return PTR_ERR(p->base);
 
-	if (devm_request_irq(&pdev->dev, irq, em_sti_interrupt,
-			     IRQF_TIMER | IRQF_IRQPOLL | IRQF_NOBALANCING,
-			     dev_name(&pdev->dev), p)) {
+	ret = devm_request_irq(&pdev->dev, irq, em_sti_interrupt,
+			       IRQF_TIMER | IRQF_IRQPOLL | IRQF_NOBALANCING,
+			       dev_name(&pdev->dev), p);
+	if (ret) {
 		dev_err(&pdev->dev, "failed to request low IRQ\n");
-		return -ENOENT;
+		return ret;
 	}
 
 	/* get hold of clock */
diff --git a/drivers/clocksource/timer-of.c b/drivers/clocksource/timer-of.c
index f6e7491c873c..4d7aef9d9c15 100644
--- a/drivers/clocksource/timer-of.c
+++ b/drivers/clocksource/timer-of.c
@@ -41,8 +41,16 @@ static __init int timer_irq_init(struct device_node *np,
 	struct timer_of *to = container_of(of_irq, struct timer_of, of_irq);
 	struct clock_event_device *clkevt = &to->clkevt;
 
-	of_irq->irq = of_irq->name ? of_irq_get_byname(np, of_irq->name):
-		irq_of_parse_and_map(np, of_irq->index);
+	if (of_irq->name) {
+		of_irq->irq = ret = of_irq_get_byname(np, of_irq->name);
+		if (ret < 0) {
+			pr_err("Failed to get interrupt %s for %s\n",
+			       of_irq->name, np->full_name);
+			return ret;
+		}
+	} else	{
+		of_irq->irq = irq_of_parse_and_map(np, of_irq->index);
+	}
 	if (!of_irq->irq) {
 		pr_err("Failed to map interrupt for %s\n", np->full_name);
 		return -EINVAL;
@@ -120,9 +128,9 @@ static __init int timer_base_init(struct device_node *np,
 	const char *name = of_base->name ? of_base->name : np->full_name;
 
 	of_base->base = of_io_request_and_map(np, of_base->index, name);
-	if (!of_base->base) {
+	if (IS_ERR(of_base->base)) {
 		pr_err("Failed to iomap (%s)\n", name);
-		return -ENXIO;
+		return PTR_ERR(of_base->base);
 	}
 
 	return 0;
diff --git a/drivers/cpufreq/arm_big_little.c b/drivers/cpufreq/arm_big_little.c
index 418042201e6d..ea6d62547b10 100644
--- a/drivers/cpufreq/arm_big_little.c
+++ b/drivers/cpufreq/arm_big_little.c
@@ -540,7 +540,7 @@ static void bL_cpufreq_ready(struct cpufreq_policy *policy)
 				     &power_coefficient);
 
 		cdev[cur_cluster] = of_cpufreq_power_cooling_register(np,
-				policy->related_cpus, power_coefficient, NULL);
+				policy, power_coefficient, NULL);
 		if (IS_ERR(cdev[cur_cluster])) {
 			dev_err(cpu_dev,
 				"running cpufreq without cooling device: %ld\n",
diff --git a/drivers/cpufreq/cpufreq-dt.c b/drivers/cpufreq/cpufreq-dt.c
index c943787d761e..fef3c2160691 100644
--- a/drivers/cpufreq/cpufreq-dt.c
+++ b/drivers/cpufreq/cpufreq-dt.c
@@ -326,7 +326,7 @@ static void cpufreq_ready(struct cpufreq_policy *policy)
 				     &power_coefficient);
 
 		priv->cdev = of_cpufreq_power_cooling_register(np,
-				policy->related_cpus, power_coefficient, NULL);
+				policy, power_coefficient, NULL);
 		if (IS_ERR(priv->cdev)) {
 			dev_err(priv->cpu_dev,
 				"running cpufreq without cooling device: %ld\n",
diff --git a/drivers/cpufreq/cpufreq_stats.c b/drivers/cpufreq/cpufreq_stats.c
index d362739a71f3..e75880eb037d 100644
--- a/drivers/cpufreq/cpufreq_stats.c
+++ b/drivers/cpufreq/cpufreq_stats.c
@@ -170,11 +170,10 @@ void cpufreq_stats_create_table(struct cpufreq_policy *policy)
 	unsigned int i = 0, count = 0, ret = -ENOMEM;
 	struct cpufreq_stats *stats;
 	unsigned int alloc_size;
-	struct cpufreq_frequency_table *pos, *table;
+	struct cpufreq_frequency_table *pos;
 
-	/* We need cpufreq table for creating stats table */
-	table = policy->freq_table;
-	if (unlikely(!table))
+	count = cpufreq_table_count_valid_entries(policy);
+	if (!count)
 		return;
 
 	/* stats already initialized */
@@ -185,10 +184,6 @@ void cpufreq_stats_create_table(struct cpufreq_policy *policy)
 	if (!stats)
 		return;
 
-	/* Find total allocation size */
-	cpufreq_for_each_valid_entry(pos, table)
-		count++;
-
 	alloc_size = count * sizeof(int) + count * sizeof(u64);
 
 	alloc_size += count * count * sizeof(int);
@@ -205,7 +200,7 @@ void cpufreq_stats_create_table(struct cpufreq_policy *policy)
 	stats->max_state = count;
 
 	/* Find valid-unique entries */
-	cpufreq_for_each_valid_entry(pos, table)
+	cpufreq_for_each_valid_entry(pos, policy->freq_table)
 		if (freq_table_get_index(stats, pos->frequency) == -1)
 			stats->freq_table[i++] = pos->frequency;
 
diff --git a/drivers/cpufreq/dbx500-cpufreq.c b/drivers/cpufreq/dbx500-cpufreq.c
index 3575b82210ba..4ee0431579c1 100644
--- a/drivers/cpufreq/dbx500-cpufreq.c
+++ b/drivers/cpufreq/dbx500-cpufreq.c
@@ -43,7 +43,7 @@ static int dbx500_cpufreq_exit(struct cpufreq_policy *policy)
 
 static void dbx500_cpufreq_ready(struct cpufreq_policy *policy)
 {
-	cdev = cpufreq_cooling_register(policy->cpus);
+	cdev = cpufreq_cooling_register(policy);
 	if (IS_ERR(cdev))
 		pr_err("Failed to register cooling device %ld\n", PTR_ERR(cdev));
 	else
diff --git a/drivers/cpufreq/intel_pstate.c b/drivers/cpufreq/intel_pstate.c
index d6f323560da3..65ee4fcace1f 100644
--- a/drivers/cpufreq/intel_pstate.c
+++ b/drivers/cpufreq/intel_pstate.c
@@ -225,6 +225,9 @@ struct global_params {
  * @vid:		Stores VID limits for this CPU
  * @pid:		Stores PID parameters for this CPU
  * @last_sample_time:	Last Sample time
+ * @aperf_mperf_shift:	Number of clock cycles after aperf, merf is incremented
+ *			This shift is a multiplier to mperf delta to
+ *			calculate CPU busy.
  * @prev_aperf:		Last APERF value read from APERF MSR
  * @prev_mperf:		Last MPERF value read from MPERF MSR
  * @prev_tsc:		Last timestamp counter (TSC) value
@@ -259,6 +262,7 @@ struct cpudata {
 
 	u64	last_update;
 	u64	last_sample_time;
+	u64	aperf_mperf_shift;
 	u64	prev_aperf;
 	u64	prev_mperf;
 	u64	prev_tsc;
@@ -321,6 +325,7 @@ struct pstate_funcs {
 	int (*get_min)(void);
 	int (*get_turbo)(void);
 	int (*get_scaling)(void);
+	int (*get_aperf_mperf_shift)(void);
 	u64 (*get_val)(struct cpudata*, int pstate);
 	void (*get_vid)(struct cpudata *);
 	void (*update_util)(struct update_util_data *data, u64 time,
@@ -572,7 +577,7 @@ static int min_perf_pct_min(void)
 	int turbo_pstate = cpu->pstate.turbo_pstate;
 
 	return turbo_pstate ?
-		DIV_ROUND_UP(cpu->pstate.min_pstate * 100, turbo_pstate) : 0;
+		(cpu->pstate.min_pstate * 100 / turbo_pstate) : 0;
 }
 
 static s16 intel_pstate_get_epb(struct cpudata *cpu_data)
@@ -1486,6 +1491,11 @@ static u64 core_get_val(struct cpudata *cpudata, int pstate)
 	return val;
 }
 
+static int knl_get_aperf_mperf_shift(void)
+{
+	return 10;
+}
+
 static int knl_get_turbo_pstate(void)
 {
 	u64 value;
@@ -1543,6 +1553,9 @@ static void intel_pstate_get_cpu_pstates(struct cpudata *cpu)
 	cpu->pstate.max_freq = cpu->pstate.max_pstate * cpu->pstate.scaling;
 	cpu->pstate.turbo_freq = cpu->pstate.turbo_pstate * cpu->pstate.scaling;
 
+	if (pstate_funcs.get_aperf_mperf_shift)
+		cpu->aperf_mperf_shift = pstate_funcs.get_aperf_mperf_shift();
+
 	if (pstate_funcs.get_vid)
 		pstate_funcs.get_vid(cpu);
 
@@ -1600,8 +1613,7 @@ static inline bool intel_pstate_sample(struct cpudata *cpu, u64 time)
 
 static inline int32_t get_avg_frequency(struct cpudata *cpu)
 {
-	return mul_ext_fp(cpu->sample.core_avg_perf,
-			  cpu->pstate.max_pstate_physical * cpu->pstate.scaling);
+	return mul_ext_fp(cpu->sample.core_avg_perf, cpu_khz);
 }
 
 static inline int32_t get_avg_pstate(struct cpudata *cpu)
@@ -1616,7 +1628,8 @@ static inline int32_t get_target_pstate_use_cpu_load(struct cpudata *cpu)
 	int32_t busy_frac, boost;
 	int target, avg_pstate;
 
-	busy_frac = div_fp(sample->mperf, sample->tsc);
+	busy_frac = div_fp(sample->mperf << cpu->aperf_mperf_shift,
+			   sample->tsc);
 
 	boost = cpu->iowait_boost;
 	cpu->iowait_boost >>= 1;
@@ -1675,7 +1688,8 @@ static inline int32_t get_target_pstate_use_performance(struct cpudata *cpu)
 		sample_ratio = div_fp(pid_params.sample_rate_ns, duration_ns);
 		perf_scaled = mul_fp(perf_scaled, sample_ratio);
 	} else {
-		sample_ratio = div_fp(100 * cpu->sample.mperf, cpu->sample.tsc);
+		sample_ratio = div_fp(100 * (cpu->sample.mperf << cpu->aperf_mperf_shift),
+				      cpu->sample.tsc);
 		if (sample_ratio < int_tofp(1))
 			perf_scaled = 0;
 	}
@@ -1807,6 +1821,7 @@ static const struct pstate_funcs knl_funcs = {
 	.get_max_physical = core_get_max_pstate_physical,
 	.get_min = core_get_min_pstate,
 	.get_turbo = knl_get_turbo_pstate,
+	.get_aperf_mperf_shift = knl_get_aperf_mperf_shift,
 	.get_scaling = core_get_scaling,
 	.get_val = core_get_val,
 	.update_util = intel_pstate_update_util_pid,
@@ -1906,13 +1921,6 @@ static int intel_pstate_init_cpu(unsigned int cpunum)
 	return 0;
 }
 
-static unsigned int intel_pstate_get(unsigned int cpu_num)
-{
-	struct cpudata *cpu = all_cpu_data[cpu_num];
-
-	return cpu ? get_avg_frequency(cpu) : 0;
-}
-
 static void intel_pstate_set_update_util_hook(unsigned int cpu_num)
 {
 	struct cpudata *cpu = all_cpu_data[cpu_num];
@@ -2153,7 +2161,6 @@ static struct cpufreq_driver intel_pstate = {
 	.setpolicy	= intel_pstate_set_policy,
 	.suspend	= intel_pstate_hwp_save_state,
 	.resume		= intel_pstate_resume,
-	.get		= intel_pstate_get,
 	.init		= intel_pstate_cpu_init,
 	.exit		= intel_pstate_cpu_exit,
 	.stop_cpu	= intel_pstate_stop_cpu,
@@ -2403,6 +2410,7 @@ static void __init copy_cpu_funcs(struct pstate_funcs *funcs)
 	pstate_funcs.get_val   = funcs->get_val;
 	pstate_funcs.get_vid   = funcs->get_vid;
 	pstate_funcs.update_util = funcs->update_util;
+	pstate_funcs.get_aperf_mperf_shift = funcs->get_aperf_mperf_shift;
 
 	intel_pstate_use_acpi_profile();
 }
diff --git a/drivers/cpufreq/mt8173-cpufreq.c b/drivers/cpufreq/mt8173-cpufreq.c
index fd1886faf33a..f9f00fb4bc3a 100644
--- a/drivers/cpufreq/mt8173-cpufreq.c
+++ b/drivers/cpufreq/mt8173-cpufreq.c
@@ -320,9 +320,7 @@ static void mtk_cpufreq_ready(struct cpufreq_policy *policy)
 		of_property_read_u32(np, DYNAMIC_POWER, &capacitance);
 
 		info->cdev = of_cpufreq_power_cooling_register(np,
-						policy->related_cpus,
-						capacitance,
-						NULL);
+						policy, capacitance, NULL);
 
 		if (IS_ERR(info->cdev)) {
 			dev_err(info->cpu_dev,
diff --git a/drivers/cpufreq/qoriq-cpufreq.c b/drivers/cpufreq/qoriq-cpufreq.c
index e2ea433a5f9c..4ada55b8856e 100644
--- a/drivers/cpufreq/qoriq-cpufreq.c
+++ b/drivers/cpufreq/qoriq-cpufreq.c
@@ -278,8 +278,7 @@ static void qoriq_cpufreq_ready(struct cpufreq_policy *policy)
 	struct device_node *np = of_get_cpu_node(policy->cpu, NULL);
 
 	if (of_find_property(np, "#cooling-cells", NULL)) {
-		cpud->cdev = of_cpufreq_cooling_register(np,
-							 policy->related_cpus);
+		cpud->cdev = of_cpufreq_cooling_register(np, policy);
 
 		if (IS_ERR(cpud->cdev) && PTR_ERR(cpud->cdev) != -ENOSYS) {
 			pr_err("cpu%d is not running as cooling device: %ld\n",
diff --git a/drivers/cpuidle/cpuidle-powernv.c b/drivers/cpuidle/cpuidle-powernv.c
index 37b0698b7193..42896a67aeae 100644
--- a/drivers/cpuidle/cpuidle-powernv.c
+++ b/drivers/cpuidle/cpuidle-powernv.c
@@ -235,6 +235,7 @@ static inline int validate_dt_prop_sizes(const char *prop1, int prop1_len,
 	return -1;
 }
 
+extern u32 pnv_get_supported_cpuidle_states(void);
 static int powernv_add_idle_states(void)
 {
 	struct device_node *power_mgt;
@@ -248,6 +249,8 @@ static int powernv_add_idle_states(void)
 	const char *names[CPUIDLE_STATE_MAX];
 	u32 has_stop_states = 0;
 	int i, rc;
+	u32 supported_flags = pnv_get_supported_cpuidle_states();
+
 
 	/* Currently we have snooze statically defined */
 
@@ -362,6 +365,13 @@ static int powernv_add_idle_states(void)
 	for (i = 0; i < dt_idle_states; i++) {
 		unsigned int exit_latency, target_residency;
 		bool stops_timebase = false;
+
+		/*
+		 * Skip the platform idle state whose flag isn't in
+		 * the supported_cpuidle_states flag mask.
+		 */
+		if ((flags[i] & supported_flags) != flags[i])
+			continue;
 		/*
 		 * If an idle state has exit latency beyond
 		 * POWERNV_THRESHOLD_LATENCY_NS then don't use it
diff --git a/drivers/crypto/Kconfig b/drivers/crypto/Kconfig
index 193204dfbf3a..4b75084fabad 100644
--- a/drivers/crypto/Kconfig
+++ b/drivers/crypto/Kconfig
@@ -655,7 +655,7 @@ source "drivers/crypto/virtio/Kconfig"
 config CRYPTO_DEV_BCM_SPU
 	tristate "Broadcom symmetric crypto/hash acceleration support"
 	depends on ARCH_BCM_IPROC
-	depends on BCM_PDC_MBOX
+	depends on MAILBOX
 	default m
 	select CRYPTO_DES
 	select CRYPTO_MD5
diff --git a/drivers/crypto/atmel-sha.c b/drivers/crypto/atmel-sha.c
index a9482023d7d3..dad4e5bad827 100644
--- a/drivers/crypto/atmel-sha.c
+++ b/drivers/crypto/atmel-sha.c
@@ -1204,7 +1204,9 @@ static int atmel_sha_finup(struct ahash_request *req)
 	ctx->flags |= SHA_FLAGS_FINUP;
 
 	err1 = atmel_sha_update(req);
-	if (err1 == -EINPROGRESS || err1 == -EBUSY)
+	if (err1 == -EINPROGRESS ||
+	    (err1 == -EBUSY && (ahash_request_flags(req) &
+				CRYPTO_TFM_REQ_MAY_BACKLOG)))
 		return err1;
 
 	/*
diff --git a/drivers/crypto/bcm/spu2.c b/drivers/crypto/bcm/spu2.c
index ef04c9748317..bf7ac621c591 100644
--- a/drivers/crypto/bcm/spu2.c
+++ b/drivers/crypto/bcm/spu2.c
@@ -302,6 +302,7 @@ spu2_hash_xlate(enum hash_alg hash_alg, enum hash_mode hash_mode,
 		break;
 	case HASH_ALG_SHA3_512:
 		*spu2_type = SPU2_HASH_TYPE_SHA3_512;
+		break;
 	case HASH_ALG_LAST:
 	default:
 		err = -EINVAL;
diff --git a/drivers/crypto/caam/caamalg.c b/drivers/crypto/caam/caamalg.c
index fde399c88779..0488b7f81dcf 100644
--- a/drivers/crypto/caam/caamalg.c
+++ b/drivers/crypto/caam/caamalg.c
@@ -882,10 +882,10 @@ static void ablkcipher_encrypt_done(struct device *jrdev, u32 *desc, u32 err,
 {
 	struct ablkcipher_request *req = context;
 	struct ablkcipher_edesc *edesc;
-#ifdef DEBUG
 	struct crypto_ablkcipher *ablkcipher = crypto_ablkcipher_reqtfm(req);
 	int ivsize = crypto_ablkcipher_ivsize(ablkcipher);
 
+#ifdef DEBUG
 	dev_err(jrdev, "%s %d: err 0x%x\n", __func__, __LINE__, err);
 #endif
 
@@ -904,6 +904,14 @@ static void ablkcipher_encrypt_done(struct device *jrdev, u32 *desc, u32 err,
 #endif
 
 	ablkcipher_unmap(jrdev, edesc, req);
+
+	/*
+	 * The crypto API expects us to set the IV (req->info) to the last
+	 * ciphertext block. This is used e.g. by the CTS mode.
+	 */
+	scatterwalk_map_and_copy(req->info, req->dst, req->nbytes - ivsize,
+				 ivsize, 0);
+
 	kfree(edesc);
 
 	ablkcipher_request_complete(req, err);
@@ -914,10 +922,10 @@ static void ablkcipher_decrypt_done(struct device *jrdev, u32 *desc, u32 err,
 {
 	struct ablkcipher_request *req = context;
 	struct ablkcipher_edesc *edesc;
-#ifdef DEBUG
 	struct crypto_ablkcipher *ablkcipher = crypto_ablkcipher_reqtfm(req);
 	int ivsize = crypto_ablkcipher_ivsize(ablkcipher);
 
+#ifdef DEBUG
 	dev_err(jrdev, "%s %d: err 0x%x\n", __func__, __LINE__, err);
 #endif
 
@@ -935,6 +943,14 @@ static void ablkcipher_decrypt_done(struct device *jrdev, u32 *desc, u32 err,
 #endif
 
 	ablkcipher_unmap(jrdev, edesc, req);
+
+	/*
+	 * The crypto API expects us to set the IV (req->info) to the last
+	 * ciphertext block.
+	 */
+	scatterwalk_map_and_copy(req->info, req->src, req->nbytes - ivsize,
+				 ivsize, 0);
+
 	kfree(edesc);
 
 	ablkcipher_request_complete(req, err);
diff --git a/drivers/crypto/caam/caamhash.c b/drivers/crypto/caam/caamhash.c
index 7c44c90ad593..910ec61cae09 100644
--- a/drivers/crypto/caam/caamhash.c
+++ b/drivers/crypto/caam/caamhash.c
@@ -396,7 +396,7 @@ static int hash_digest_key(struct caam_hash_ctx *ctx, const u8 *key_in,
 	ret = caam_jr_enqueue(jrdev, desc, split_key_done, &result);
 	if (!ret) {
 		/* in progress */
-		wait_for_completion_interruptible(&result.completion);
+		wait_for_completion(&result.completion);
 		ret = result.err;
 #ifdef DEBUG
 		print_hex_dump(KERN_ERR,
diff --git a/drivers/crypto/caam/key_gen.c b/drivers/crypto/caam/key_gen.c
index 1bb2816a9b4d..c425d4adaf2a 100644
--- a/drivers/crypto/caam/key_gen.c
+++ b/drivers/crypto/caam/key_gen.c
@@ -149,7 +149,7 @@ int gen_split_key(struct device *jrdev, u8 *key_out,
 	ret = caam_jr_enqueue(jrdev, desc, split_key_done, &result);
 	if (!ret) {
 		/* in progress */
-		wait_for_completion_interruptible(&result.completion);
+		wait_for_completion(&result.completion);
 		ret = result.err;
 #ifdef DEBUG
 		print_hex_dump(KERN_ERR, "ctx.key@"__stringify(__LINE__)": ",
diff --git a/drivers/crypto/cavium/cpt/cptvf_algs.c b/drivers/crypto/cavium/cpt/cptvf_algs.c
index 1b220f3ed017..df21d996db7e 100644
--- a/drivers/crypto/cavium/cpt/cptvf_algs.c
+++ b/drivers/crypto/cavium/cpt/cptvf_algs.c
@@ -222,17 +222,17 @@ static inline int cvm_enc_dec(struct ablkcipher_request *req, u32 enc)
 		return -EINPROGRESS;
 }
 
-int cvm_encrypt(struct ablkcipher_request *req)
+static int cvm_encrypt(struct ablkcipher_request *req)
 {
 	return cvm_enc_dec(req, true);
 }
 
-int cvm_decrypt(struct ablkcipher_request *req)
+static int cvm_decrypt(struct ablkcipher_request *req)
 {
 	return cvm_enc_dec(req, false);
 }
 
-int cvm_xts_setkey(struct crypto_ablkcipher *cipher, const u8 *key,
+static int cvm_xts_setkey(struct crypto_ablkcipher *cipher, const u8 *key,
 		   u32 keylen)
 {
 	struct crypto_tfm *tfm = crypto_ablkcipher_tfm(cipher);
@@ -336,7 +336,7 @@ static int cvm_ecb_des3_setkey(struct crypto_ablkcipher *cipher, const u8 *key,
 	return cvm_setkey(cipher, key, keylen, DES3_ECB);
 }
 
-int cvm_enc_dec_init(struct crypto_tfm *tfm)
+static int cvm_enc_dec_init(struct crypto_tfm *tfm)
 {
 	struct cvm_enc_ctx *ctx = crypto_tfm_ctx(tfm);
 
diff --git a/drivers/crypto/cavium/nitrox/nitrox_main.c b/drivers/crypto/cavium/nitrox/nitrox_main.c
index ae44a464cd2d..9ccefb9b7232 100644
--- a/drivers/crypto/cavium/nitrox/nitrox_main.c
+++ b/drivers/crypto/cavium/nitrox/nitrox_main.c
@@ -18,8 +18,9 @@
 #define SE_GROUP 0
 
 #define DRIVER_VERSION "1.0"
+#define FW_DIR "cavium/"
 /* SE microcode */
-#define SE_FW	"cnn55xx_se.fw"
+#define SE_FW	FW_DIR "cnn55xx_se.fw"
 
 static const char nitrox_driver_name[] = "CNN55XX";
 
diff --git a/drivers/crypto/chelsio/chcr_algo.c b/drivers/crypto/chelsio/chcr_algo.c
index cfc723a10610..0e8160701833 100644
--- a/drivers/crypto/chelsio/chcr_algo.c
+++ b/drivers/crypto/chelsio/chcr_algo.c
@@ -898,26 +898,20 @@ static int chcr_update_tweak(struct ablkcipher_request *req, u8 *iv)
 	u8 *key;
 	unsigned int keylen;
 
-	cipher = crypto_alloc_cipher("aes-generic", 0, 0);
+	cipher = ablkctx->aes_generic;
 	memcpy(iv, req->info, AES_BLOCK_SIZE);
 
-	if (IS_ERR(cipher)) {
-		ret = -ENOMEM;
-		goto out;
-	}
 	keylen = ablkctx->enckey_len / 2;
 	key = ablkctx->key + keylen;
 	ret = crypto_cipher_setkey(cipher, key, keylen);
 	if (ret)
-		goto out1;
+		goto out;
 
 	crypto_cipher_encrypt_one(cipher, iv, iv);
 	for (i = 0; i < (reqctx->processed / AES_BLOCK_SIZE); i++)
 		gf128mul_x_ble((le128 *)iv, (le128 *)iv);
 
 	crypto_cipher_decrypt_one(cipher, iv, iv);
-out1:
-	crypto_free_cipher(cipher);
 out:
 	return ret;
 }
@@ -1261,6 +1255,17 @@ static int chcr_cra_init(struct crypto_tfm *tfm)
 		pr_err("failed to allocate fallback for %s\n", alg->cra_name);
 		return PTR_ERR(ablkctx->sw_cipher);
 	}
+
+	if (get_cryptoalg_subtype(tfm) == CRYPTO_ALG_SUB_TYPE_XTS) {
+		/* To update tweak*/
+		ablkctx->aes_generic = crypto_alloc_cipher("aes-generic", 0, 0);
+		if (IS_ERR(ablkctx->aes_generic)) {
+			pr_err("failed to allocate aes cipher for tweak\n");
+			return PTR_ERR(ablkctx->aes_generic);
+		}
+	} else
+		ablkctx->aes_generic = NULL;
+
 	tfm->crt_ablkcipher.reqsize =  sizeof(struct chcr_blkcipher_req_ctx);
 	return chcr_device_init(crypto_tfm_ctx(tfm));
 }
@@ -1291,6 +1296,8 @@ static void chcr_cra_exit(struct crypto_tfm *tfm)
 	struct ablk_ctx *ablkctx = ABLK_CTX(ctx);
 
 	crypto_free_skcipher(ablkctx->sw_cipher);
+	if (ablkctx->aes_generic)
+		crypto_free_cipher(ablkctx->aes_generic);
 }
 
 static int get_alg_config(struct algo_param *params,
diff --git a/drivers/crypto/chelsio/chcr_crypto.h b/drivers/crypto/chelsio/chcr_crypto.h
index a4f95b014b46..30af1ee17b87 100644
--- a/drivers/crypto/chelsio/chcr_crypto.h
+++ b/drivers/crypto/chelsio/chcr_crypto.h
@@ -155,6 +155,7 @@
 
 struct ablk_ctx {
 	struct crypto_skcipher *sw_cipher;
+	struct crypto_cipher *aes_generic;
 	__be32 key_ctx_hdr;
 	unsigned int enckey_len;
 	unsigned char ciph_mode;
diff --git a/drivers/crypto/inside-secure/safexcel.c b/drivers/crypto/inside-secure/safexcel.c
index e7f87ac12685..1fabd4aee81b 100644
--- a/drivers/crypto/inside-secure/safexcel.c
+++ b/drivers/crypto/inside-secure/safexcel.c
@@ -773,7 +773,6 @@ static int safexcel_probe(struct platform_device *pdev)
 	struct device *dev = &pdev->dev;
 	struct resource *res;
 	struct safexcel_crypto_priv *priv;
-	u64 dma_mask;
 	int i, ret;
 
 	priv = devm_kzalloc(dev, sizeof(*priv), GFP_KERNEL);
@@ -802,9 +801,7 @@ static int safexcel_probe(struct platform_device *pdev)
 			return -EPROBE_DEFER;
 	}
 
-	if (of_property_read_u64(dev->of_node, "dma-mask", &dma_mask))
-		dma_mask = DMA_BIT_MASK(64);
-	ret = dma_set_mask_and_coherent(dev, dma_mask);
+	ret = dma_set_mask_and_coherent(dev, DMA_BIT_MASK(64));
 	if (ret)
 		goto err_clk;
 
diff --git a/drivers/crypto/inside-secure/safexcel_hash.c b/drivers/crypto/inside-secure/safexcel_hash.c
index 8527a5899a2f..3f819399cd95 100644
--- a/drivers/crypto/inside-secure/safexcel_hash.c
+++ b/drivers/crypto/inside-secure/safexcel_hash.c
@@ -883,10 +883,7 @@ static int safexcel_hmac_sha1_setkey(struct crypto_ahash *tfm, const u8 *key,
 	if (ret)
 		return ret;
 
-	memcpy(ctx->ipad, &istate.state, SHA1_DIGEST_SIZE);
-	memcpy(ctx->opad, &ostate.state, SHA1_DIGEST_SIZE);
-
-	for (i = 0; i < ARRAY_SIZE(istate.state); i++) {
+	for (i = 0; i < SHA1_DIGEST_SIZE / sizeof(u32); i++) {
 		if (ctx->ipad[i] != le32_to_cpu(istate.state[i]) ||
 		    ctx->opad[i] != le32_to_cpu(ostate.state[i])) {
 			ctx->base.needs_inv = true;
@@ -894,6 +891,9 @@ static int safexcel_hmac_sha1_setkey(struct crypto_ahash *tfm, const u8 *key,
 		}
 	}
 
+	memcpy(ctx->ipad, &istate.state, SHA1_DIGEST_SIZE);
+	memcpy(ctx->opad, &ostate.state, SHA1_DIGEST_SIZE);
+
 	return 0;
 }
 
diff --git a/drivers/crypto/ixp4xx_crypto.c b/drivers/crypto/ixp4xx_crypto.c
index 427cbe012729..dadc4a808df5 100644
--- a/drivers/crypto/ixp4xx_crypto.c
+++ b/drivers/crypto/ixp4xx_crypto.c
@@ -1073,7 +1073,7 @@ static int aead_perform(struct aead_request *req, int encrypt,
 		req_ctx->hmac_virt = dma_pool_alloc(buffer_pool, flags,
 				&crypt->icv_rev_aes);
 		if (unlikely(!req_ctx->hmac_virt))
-			goto free_buf_src;
+			goto free_buf_dst;
 		if (!encrypt) {
 			scatterwalk_map_and_copy(req_ctx->hmac_virt,
 				req->src, cryptlen, authsize, 0);
@@ -1088,10 +1088,10 @@ static int aead_perform(struct aead_request *req, int encrypt,
 	BUG_ON(qmgr_stat_overflow(SEND_QID));
 	return -EINPROGRESS;
 
-free_buf_src:
-	free_buf_chain(dev, req_ctx->src, crypt->src_buf);
 free_buf_dst:
 	free_buf_chain(dev, req_ctx->dst, crypt->dst_buf);
+free_buf_src:
+	free_buf_chain(dev, req_ctx->src, crypt->src_buf);
 	crypt->ctl_flags = CTL_FLAG_UNUSED;
 	return -ENOMEM;
 }
diff --git a/drivers/dax/device-dax.h b/drivers/dax/device-dax.h
index fdcd9769ffde..688b051750bd 100644
--- a/drivers/dax/device-dax.h
+++ b/drivers/dax/device-dax.h
@@ -21,5 +21,5 @@ struct dax_region *alloc_dax_region(struct device *parent,
 		int region_id, struct resource *res, unsigned int align,
 		void *addr, unsigned long flags);
 struct dev_dax *devm_create_dev_dax(struct dax_region *dax_region,
-		struct resource *res, int count);
+		int id, struct resource *res, int count);
 #endif /* __DEVICE_DAX_H__ */
diff --git a/drivers/dax/device.c b/drivers/dax/device.c
index 12943d19bfc4..e9f3b3e4bbf4 100644
--- a/drivers/dax/device.c
+++ b/drivers/dax/device.c
@@ -529,7 +529,8 @@ static void dev_dax_release(struct device *dev)
 	struct dax_region *dax_region = dev_dax->region;
 	struct dax_device *dax_dev = dev_dax->dax_dev;
 
-	ida_simple_remove(&dax_region->ida, dev_dax->id);
+	if (dev_dax->id >= 0)
+		ida_simple_remove(&dax_region->ida, dev_dax->id);
 	dax_region_put(dax_region);
 	put_dax(dax_dev);
 	kfree(dev_dax);
@@ -559,7 +560,7 @@ static void unregister_dev_dax(void *dev)
 }
 
 struct dev_dax *devm_create_dev_dax(struct dax_region *dax_region,
-		struct resource *res, int count)
+		int id, struct resource *res, int count)
 {
 	struct device *parent = dax_region->dev;
 	struct dax_device *dax_dev;
@@ -567,7 +568,10 @@ struct dev_dax *devm_create_dev_dax(struct dax_region *dax_region,
 	struct inode *inode;
 	struct device *dev;
 	struct cdev *cdev;
-	int rc = 0, i;
+	int rc, i;
+
+	if (!count)
+		return ERR_PTR(-EINVAL);
 
 	dev_dax = kzalloc(sizeof(*dev_dax) + sizeof(*res) * count, GFP_KERNEL);
 	if (!dev_dax)
@@ -587,10 +591,16 @@ struct dev_dax *devm_create_dev_dax(struct dax_region *dax_region,
 	if (i < count)
 		goto err_id;
 
-	dev_dax->id = ida_simple_get(&dax_region->ida, 0, 0, GFP_KERNEL);
-	if (dev_dax->id < 0) {
-		rc = dev_dax->id;
-		goto err_id;
+	if (id < 0) {
+		id = ida_simple_get(&dax_region->ida, 0, 0, GFP_KERNEL);
+		dev_dax->id = id;
+		if (id < 0) {
+			rc = id;
+			goto err_id;
+		}
+	} else {
+		/* region provider owns @id lifetime */
+		dev_dax->id = -1;
 	}
 
 	/*
@@ -598,8 +608,10 @@ struct dev_dax *devm_create_dev_dax(struct dax_region *dax_region,
 	 * device outside of mmap of the resulting character device.
 	 */
 	dax_dev = alloc_dax(dev_dax, NULL, NULL);
-	if (!dax_dev)
+	if (!dax_dev) {
+		rc = -ENOMEM;
 		goto err_dax;
+	}
 
 	/* from here on we're committed to teardown via dax_dev_release() */
 	dev = &dev_dax->dev;
@@ -620,7 +632,7 @@ struct dev_dax *devm_create_dev_dax(struct dax_region *dax_region,
 	dev->parent = parent;
 	dev->groups = dax_attribute_groups;
 	dev->release = dev_dax_release;
-	dev_set_name(dev, "dax%d.%d", dax_region->id, dev_dax->id);
+	dev_set_name(dev, "dax%d.%d", dax_region->id, id);
 
 	rc = cdev_device_add(cdev, dev);
 	if (rc) {
@@ -636,7 +648,8 @@ struct dev_dax *devm_create_dev_dax(struct dax_region *dax_region,
 	return dev_dax;
 
  err_dax:
-	ida_simple_remove(&dax_region->ida, dev_dax->id);
+	if (dev_dax->id >= 0)
+		ida_simple_remove(&dax_region->ida, dev_dax->id);
  err_id:
 	kfree(dev_dax);
 
diff --git a/drivers/dax/pmem.c b/drivers/dax/pmem.c
index 9f2a0b4fd801..8d8c852ba8f2 100644
--- a/drivers/dax/pmem.c
+++ b/drivers/dax/pmem.c
@@ -58,13 +58,12 @@ static void dax_pmem_percpu_kill(void *data)
 
 static int dax_pmem_probe(struct device *dev)
 {
-	int rc;
 	void *addr;
 	struct resource res;
+	int rc, id, region_id;
 	struct nd_pfn_sb *pfn_sb;
 	struct dev_dax *dev_dax;
 	struct dax_pmem *dax_pmem;
-	struct nd_region *nd_region;
 	struct nd_namespace_io *nsio;
 	struct dax_region *dax_region;
 	struct nd_namespace_common *ndns;
@@ -123,14 +122,17 @@ static int dax_pmem_probe(struct device *dev)
 	/* adjust the dax_region resource to the start of data */
 	res.start += le64_to_cpu(pfn_sb->dataoff);
 
-	nd_region = to_nd_region(dev->parent);
-	dax_region = alloc_dax_region(dev, nd_region->id, &res,
+	rc = sscanf(dev_name(&ndns->dev), "namespace%d.%d", &region_id, &id);
+	if (rc != 2)
+		return -EINVAL;
+
+	dax_region = alloc_dax_region(dev, region_id, &res,
 			le32_to_cpu(pfn_sb->align), addr, PFN_DEV|PFN_MAP);
 	if (!dax_region)
 		return -ENOMEM;
 
 	/* TODO: support for subdividing a dax region... */
-	dev_dax = devm_create_dev_dax(dax_region, &res, 1);
+	dev_dax = devm_create_dev_dax(dax_region, id, &res, 1);
 
 	/* child dev_dax instances now own the lifetime of the dax_region */
 	dax_region_put(dax_region);
diff --git a/drivers/dax/super.c b/drivers/dax/super.c
index ce9e563e6e1d..938eb4868f7f 100644
--- a/drivers/dax/super.c
+++ b/drivers/dax/super.c
@@ -278,6 +278,12 @@ void dax_write_cache(struct dax_device *dax_dev, bool wc)
 }
 EXPORT_SYMBOL_GPL(dax_write_cache);
 
+bool dax_write_cache_enabled(struct dax_device *dax_dev)
+{
+	return test_bit(DAXDEV_WRITE_CACHE, &dax_dev->flags);
+}
+EXPORT_SYMBOL_GPL(dax_write_cache_enabled);
+
 bool dax_alive(struct dax_device *dax_dev)
 {
 	lockdep_assert_held(&dax_srcu);
diff --git a/drivers/devfreq/governor_userspace.c b/drivers/devfreq/governor_userspace.c
index 176976068bcd..77028c27593c 100644
--- a/drivers/devfreq/governor_userspace.c
+++ b/drivers/devfreq/governor_userspace.c
@@ -86,7 +86,7 @@ static struct attribute *dev_entries[] = {
 	&dev_attr_set_freq.attr,
 	NULL,
 };
-static struct attribute_group dev_attr_group = {
+static const struct attribute_group dev_attr_group = {
 	.name	= "userspace",
 	.attrs	= dev_entries,
 };
diff --git a/drivers/devfreq/rk3399_dmc.c b/drivers/devfreq/rk3399_dmc.c
index 40a2499730fc..1b89ebbad02c 100644
--- a/drivers/devfreq/rk3399_dmc.c
+++ b/drivers/devfreq/rk3399_dmc.c
@@ -336,8 +336,9 @@ static int rk3399_dmcfreq_probe(struct platform_device *pdev)
 
 	irq = platform_get_irq(pdev, 0);
 	if (irq < 0) {
-		dev_err(&pdev->dev, "Cannot get the dmc interrupt resource\n");
-		return -EINVAL;
+		dev_err(&pdev->dev,
+			"Cannot get the dmc interrupt resource: %d\n", irq);
+		return irq;
 	}
 	data = devm_kzalloc(dev, sizeof(struct rk3399_dmcfreq), GFP_KERNEL);
 	if (!data)
diff --git a/drivers/devfreq/tegra-devfreq.c b/drivers/devfreq/tegra-devfreq.c
index 214fff96fa4a..ae712159246f 100644
--- a/drivers/devfreq/tegra-devfreq.c
+++ b/drivers/devfreq/tegra-devfreq.c
@@ -688,9 +688,9 @@ static int tegra_devfreq_probe(struct platform_device *pdev)
 	}
 
 	irq = platform_get_irq(pdev, 0);
-	if (irq <= 0) {
-		dev_err(&pdev->dev, "Failed to get IRQ\n");
-		return -ENODEV;
+	if (irq < 0) {
+		dev_err(&pdev->dev, "Failed to get IRQ: %d\n", irq);
+		return irq;
 	}
 
 	platform_set_drvdata(pdev, tegra);
diff --git a/drivers/dma-buf/dma-fence.c b/drivers/dma-buf/dma-fence.c
index 57da14c15987..56e0a0e1b600 100644
--- a/drivers/dma-buf/dma-fence.c
+++ b/drivers/dma-buf/dma-fence.c
@@ -75,11 +75,6 @@ int dma_fence_signal_locked(struct dma_fence *fence)
 	if (WARN_ON(!fence))
 		return -EINVAL;
 
-	if (!ktime_to_ns(fence->timestamp)) {
-		fence->timestamp = ktime_get();
-		smp_mb__before_atomic();
-	}
-
 	if (test_and_set_bit(DMA_FENCE_FLAG_SIGNALED_BIT, &fence->flags)) {
 		ret = -EINVAL;
 
@@ -87,8 +82,11 @@ int dma_fence_signal_locked(struct dma_fence *fence)
 		 * we might have raced with the unlocked dma_fence_signal,
 		 * still run through all callbacks
 		 */
-	} else
+	} else {
+		fence->timestamp = ktime_get();
+		set_bit(DMA_FENCE_FLAG_TIMESTAMP_BIT, &fence->flags);
 		trace_dma_fence_signaled(fence);
+	}
 
 	list_for_each_entry_safe(cur, tmp, &fence->cb_list, node) {
 		list_del_init(&cur->node);
@@ -115,14 +113,11 @@ int dma_fence_signal(struct dma_fence *fence)
 	if (!fence)
 		return -EINVAL;
 
-	if (!ktime_to_ns(fence->timestamp)) {
-		fence->timestamp = ktime_get();
-		smp_mb__before_atomic();
-	}
-
 	if (test_and_set_bit(DMA_FENCE_FLAG_SIGNALED_BIT, &fence->flags))
 		return -EINVAL;
 
+	fence->timestamp = ktime_get();
+	set_bit(DMA_FENCE_FLAG_TIMESTAMP_BIT, &fence->flags);
 	trace_dma_fence_signaled(fence);
 
 	if (test_bit(DMA_FENCE_FLAG_ENABLE_SIGNAL_BIT, &fence->flags)) {
diff --git a/drivers/dma-buf/sync_debug.c b/drivers/dma-buf/sync_debug.c
index 82a6e7f6d37f..59a3b2f8ee91 100644
--- a/drivers/dma-buf/sync_debug.c
+++ b/drivers/dma-buf/sync_debug.c
@@ -84,7 +84,7 @@ static void sync_print_fence(struct seq_file *s,
 		   show ? "_" : "",
 		   sync_status_str(status));
 
-	if (status) {
+	if (test_bit(DMA_FENCE_FLAG_TIMESTAMP_BIT, &fence->flags)) {
 		struct timespec64 ts64 =
 			ktime_to_timespec64(fence->timestamp);
 
diff --git a/drivers/dma-buf/sync_file.c b/drivers/dma-buf/sync_file.c
index 545e2c5c4815..66fb40d0ebdb 100644
--- a/drivers/dma-buf/sync_file.c
+++ b/drivers/dma-buf/sync_file.c
@@ -304,7 +304,7 @@ static int sync_file_release(struct inode *inode, struct file *file)
 {
 	struct sync_file *sync_file = file->private_data;
 
-	if (test_bit(POLL_ENABLED, &sync_file->fence->flags))
+	if (test_bit(POLL_ENABLED, &sync_file->flags))
 		dma_fence_remove_callback(sync_file->fence, &sync_file->cb);
 	dma_fence_put(sync_file->fence);
 	kfree(sync_file);
@@ -318,7 +318,8 @@ static unsigned int sync_file_poll(struct file *file, poll_table *wait)
 
 	poll_wait(file, &sync_file->wq, wait);
 
-	if (!test_and_set_bit(POLL_ENABLED, &sync_file->fence->flags)) {
+	if (list_empty(&sync_file->cb.node) &&
+	    !test_and_set_bit(POLL_ENABLED, &sync_file->flags)) {
 		if (dma_fence_add_callback(sync_file->fence, &sync_file->cb,
 					   fence_check_cb_func) < 0)
 			wake_up_all(&sync_file->wq);
@@ -391,7 +392,13 @@ static void sync_fill_fence_info(struct dma_fence *fence,
 		sizeof(info->driver_name));
 
 	info->status = dma_fence_get_status(fence);
-	info->timestamp_ns = ktime_to_ns(fence->timestamp);
+	while (test_bit(DMA_FENCE_FLAG_SIGNALED_BIT, &fence->flags) &&
+	       !test_bit(DMA_FENCE_FLAG_TIMESTAMP_BIT, &fence->flags))
+		cpu_relax();
+	info->timestamp_ns =
+		test_bit(DMA_FENCE_FLAG_TIMESTAMP_BIT, &fence->flags) ?
+		ktime_to_ns(fence->timestamp) :
+		ktime_set(0, 0);
 }
 
 static long sync_file_ioctl_fence_info(struct sync_file *sync_file,
diff --git a/drivers/firmware/efi/libstub/Makefile b/drivers/firmware/efi/libstub/Makefile
index f7425960f6a5..37e24f525162 100644
--- a/drivers/firmware/efi/libstub/Makefile
+++ b/drivers/firmware/efi/libstub/Makefile
@@ -17,6 +17,7 @@ cflags-$(CONFIG_ARM)		:= $(subst -pg,,$(KBUILD_CFLAGS)) \
 cflags-$(CONFIG_EFI_ARMSTUB)	+= -I$(srctree)/scripts/dtc/libfdt
 
 KBUILD_CFLAGS			:= $(cflags-y) -DDISABLE_BRANCH_PROFILING \
+				   -D__NO_FORTIFY \
 				   $(call cc-option,-ffreestanding) \
 				   $(call cc-option,-fno-stack-protector)
 
diff --git a/drivers/fsi/fsi-core.c b/drivers/fsi/fsi-core.c
index a485864cb512..06432d84cbf8 100644
--- a/drivers/fsi/fsi-core.c
+++ b/drivers/fsi/fsi-core.c
@@ -532,7 +532,7 @@ static inline uint32_t fsi_smode_sid(int x)
 	return (x & FSI_SMODE_SID_MASK) << FSI_SMODE_SID_SHIFT;
 }
 
-static const uint32_t fsi_slave_smode(int id)
+static uint32_t fsi_slave_smode(int id)
 {
 	return FSI_SMODE_WSC | FSI_SMODE_ECRC
 		| fsi_smode_sid(id)
@@ -883,17 +883,16 @@ struct bus_type fsi_bus_type = {
 };
 EXPORT_SYMBOL_GPL(fsi_bus_type);
 
-static int fsi_init(void)
+static int __init fsi_init(void)
 {
 	return bus_register(&fsi_bus_type);
 }
+postcore_initcall(fsi_init);
 
 static void fsi_exit(void)
 {
 	bus_unregister(&fsi_bus_type);
 }
-
-module_init(fsi_init);
 module_exit(fsi_exit);
 module_param(discard_errors, int, 0664);
 MODULE_LICENSE("GPL");
diff --git a/drivers/gpio/Kconfig b/drivers/gpio/Kconfig
index f235eae04c16..461d6fc3688b 100644
--- a/drivers/gpio/Kconfig
+++ b/drivers/gpio/Kconfig
@@ -504,6 +504,7 @@ config GPIO_XGENE_SB
 	depends on ARCH_XGENE && OF_GPIO
 	select GPIO_GENERIC
 	select GPIOLIB_IRQCHIP
+	select IRQ_DOMAIN_HIERARCHY
 	help
 	  This driver supports the GPIO block within the APM X-Gene
 	  Standby Domain. Say yes here to enable the GPIO functionality.
diff --git a/drivers/gpio/gpio-exar.c b/drivers/gpio/gpio-exar.c
index fb8d304cfa17..0ecd2369c2ca 100644
--- a/drivers/gpio/gpio-exar.c
+++ b/drivers/gpio/gpio-exar.c
@@ -132,7 +132,7 @@ static int gpio_exar_probe(struct platform_device *pdev)
 	if (!p)
 		return -ENOMEM;
 
-	ret = device_property_read_u32(&pdev->dev, "linux,first-pin",
+	ret = device_property_read_u32(&pdev->dev, "exar,first-pin",
 				       &first_pin);
 	if (ret)
 		return ret;
diff --git a/drivers/gpio/gpio-lp87565.c b/drivers/gpio/gpio-lp87565.c
index 6313c50bb91b..a121c8f10610 100644
--- a/drivers/gpio/gpio-lp87565.c
+++ b/drivers/gpio/gpio-lp87565.c
@@ -26,6 +26,27 @@ struct lp87565_gpio {
 	struct regmap *map;
 };
 
+static int lp87565_gpio_get(struct gpio_chip *chip, unsigned int offset)
+{
+	struct lp87565_gpio *gpio = gpiochip_get_data(chip);
+	int ret, val;
+
+	ret = regmap_read(gpio->map, LP87565_REG_GPIO_IN, &val);
+	if (ret < 0)
+		return ret;
+
+	return !!(val & BIT(offset));
+}
+
+static void lp87565_gpio_set(struct gpio_chip *chip, unsigned int offset,
+			     int value)
+{
+	struct lp87565_gpio *gpio = gpiochip_get_data(chip);
+
+	regmap_update_bits(gpio->map, LP87565_REG_GPIO_OUT,
+			   BIT(offset), value ? BIT(offset) : 0);
+}
+
 static int lp87565_gpio_get_direction(struct gpio_chip *chip,
 				      unsigned int offset)
 {
@@ -54,30 +75,11 @@ static int lp87565_gpio_direction_output(struct gpio_chip *chip,
 {
 	struct lp87565_gpio *gpio = gpiochip_get_data(chip);
 
+	lp87565_gpio_set(chip, offset, value);
+
 	return regmap_update_bits(gpio->map,
 				  LP87565_REG_GPIO_CONFIG,
-				  BIT(offset), !value ? BIT(offset) : 0);
-}
-
-static int lp87565_gpio_get(struct gpio_chip *chip, unsigned int offset)
-{
-	struct lp87565_gpio *gpio = gpiochip_get_data(chip);
-	int ret, val;
-
-	ret = regmap_read(gpio->map, LP87565_REG_GPIO_IN, &val);
-	if (ret < 0)
-		return ret;
-
-	return !!(val & BIT(offset));
-}
-
-static void lp87565_gpio_set(struct gpio_chip *chip, unsigned int offset,
-			     int value)
-{
-	struct lp87565_gpio *gpio = gpiochip_get_data(chip);
-
-	regmap_update_bits(gpio->map, LP87565_REG_GPIO_OUT,
-			   BIT(offset), value ? BIT(offset) : 0);
+				  BIT(offset), BIT(offset));
 }
 
 static int lp87565_gpio_request(struct gpio_chip *gc, unsigned int offset)
diff --git a/drivers/gpio/gpio-mxc.c b/drivers/gpio/gpio-mxc.c
index 3abea3f0b307..92692251ade1 100644
--- a/drivers/gpio/gpio-mxc.c
+++ b/drivers/gpio/gpio-mxc.c
@@ -424,6 +424,9 @@ static int mxc_gpio_probe(struct platform_device *pdev)
 		return PTR_ERR(port->base);
 
 	port->irq_high = platform_get_irq(pdev, 1);
+	if (port->irq_high < 0)
+		port->irq_high = 0;
+
 	port->irq = platform_get_irq(pdev, 0);
 	if (port->irq < 0)
 		return port->irq;
diff --git a/drivers/gpio/gpio-tegra.c b/drivers/gpio/gpio-tegra.c
index 88529d3c06c9..506c6a67c5fc 100644
--- a/drivers/gpio/gpio-tegra.c
+++ b/drivers/gpio/gpio-tegra.c
@@ -360,7 +360,7 @@ static void tegra_gpio_irq_handler(struct irq_desc *desc)
 {
 	int port;
 	int pin;
-	int unmasked = 0;
+	bool unmasked = false;
 	int gpio;
 	u32 lvl;
 	unsigned long sta;
@@ -384,8 +384,8 @@ static void tegra_gpio_irq_handler(struct irq_desc *desc)
 			 * before executing the handler so that we don't
 			 * miss edges
 			 */
-			if (lvl & (0x100 << pin)) {
-				unmasked = 1;
+			if (!unmasked && lvl & (0x100 << pin)) {
+				unmasked = true;
 				chained_irq_exit(chip, desc);
 			}
 
diff --git a/drivers/gpio/gpiolib.c b/drivers/gpio/gpiolib.c
index 9568708a550b..cd003b74512f 100644
--- a/drivers/gpio/gpiolib.c
+++ b/drivers/gpio/gpiolib.c
@@ -704,24 +704,23 @@ static irqreturn_t lineevent_irq_thread(int irq, void *p)
 {
 	struct lineevent_state *le = p;
 	struct gpioevent_data ge;
-	int ret;
+	int ret, level;
 
 	ge.timestamp = ktime_get_real_ns();
+	level = gpiod_get_value_cansleep(le->desc);
 
 	if (le->eflags & GPIOEVENT_REQUEST_RISING_EDGE
 	    && le->eflags & GPIOEVENT_REQUEST_FALLING_EDGE) {
-		int level = gpiod_get_value_cansleep(le->desc);
-
 		if (level)
 			/* Emit low-to-high event */
 			ge.id = GPIOEVENT_EVENT_RISING_EDGE;
 		else
 			/* Emit high-to-low event */
 			ge.id = GPIOEVENT_EVENT_FALLING_EDGE;
-	} else if (le->eflags & GPIOEVENT_REQUEST_RISING_EDGE) {
+	} else if (le->eflags & GPIOEVENT_REQUEST_RISING_EDGE && level) {
 		/* Emit low-to-high event */
 		ge.id = GPIOEVENT_EVENT_RISING_EDGE;
-	} else if (le->eflags & GPIOEVENT_REQUEST_FALLING_EDGE) {
+	} else if (le->eflags & GPIOEVENT_REQUEST_FALLING_EDGE && !level) {
 		/* Emit high-to-low event */
 		ge.id = GPIOEVENT_EVENT_FALLING_EDGE;
 	} else {
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd.c
index 5f8ada1d872b..37971d9402e3 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd.c
@@ -101,7 +101,6 @@ void amdgpu_amdkfd_device_init(struct amdgpu_device *adev)
 	if (adev->kfd) {
 		struct kgd2kfd_shared_resources gpu_resources = {
 			.compute_vmid_bitmap = 0xFF00,
-			.num_mec = adev->gfx.mec.num_mec,
 			.num_pipe_per_mec = adev->gfx.mec.num_pipe_per_mec,
 			.num_queue_per_pipe = adev->gfx.mec.num_queue_per_pipe
 		};
@@ -122,7 +121,7 @@ void amdgpu_amdkfd_device_init(struct amdgpu_device *adev)
 
 		/* According to linux/bitmap.h we shouldn't use bitmap_clear if
 		 * nbits is not compile time constant */
-		last_valid_bit = adev->gfx.mec.num_mec
+		last_valid_bit = 1 /* only first MEC can have compute queues */
 				* adev->gfx.mec.num_pipe_per_mec
 				* adev->gfx.mec.num_queue_per_pipe;
 		for (i = last_valid_bit; i < KGD_MAX_QUEUES; ++i)
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_bo_list.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_bo_list.c
index f621ee115c98..5e771bc11b00 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_bo_list.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_bo_list.c
@@ -198,12 +198,16 @@ amdgpu_bo_list_get(struct amdgpu_fpriv *fpriv, int id)
 	result = idr_find(&fpriv->bo_list_handles, id);
 
 	if (result) {
-		if (kref_get_unless_zero(&result->refcount))
+		if (kref_get_unless_zero(&result->refcount)) {
+			rcu_read_unlock();
 			mutex_lock(&result->lock);
-		else
+		} else {
+			rcu_read_unlock();
 			result = NULL;
+		}
+	} else {
+		rcu_read_unlock();
 	}
-	rcu_read_unlock();
 
 	return result;
 }
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_mn.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_mn.c
index 38f739fb727b..6558a3ed57a7 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_mn.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_mn.c
@@ -359,7 +359,7 @@ void amdgpu_mn_unregister(struct amdgpu_bo *bo)
 	head = bo->mn_list.next;
 
 	bo->mn = NULL;
-	list_del(&bo->mn_list);
+	list_del_init(&bo->mn_list);
 
 	if (list_empty(head)) {
 		struct amdgpu_mn_node *node;
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_sync.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_sync.c
index a6899180b265..c586f44312f9 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_sync.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_sync.c
@@ -244,6 +244,12 @@ struct dma_fence *amdgpu_sync_peek_fence(struct amdgpu_sync *sync,
 		struct dma_fence *f = e->fence;
 		struct amd_sched_fence *s_fence = to_amd_sched_fence(f);
 
+		if (dma_fence_is_signaled(f)) {
+			hash_del(&e->node);
+			dma_fence_put(f);
+			kmem_cache_free(amdgpu_sync_slab, e);
+			continue;
+		}
 		if (ring && s_fence) {
 			/* For fences from the same ring it is sufficient
 			 * when they are scheduled.
@@ -256,13 +262,6 @@ struct dma_fence *amdgpu_sync_peek_fence(struct amdgpu_sync *sync,
 			}
 		}
 
-		if (dma_fence_is_signaled(f)) {
-			hash_del(&e->node);
-			dma_fence_put(f);
-			kmem_cache_free(amdgpu_sync_slab, e);
-			continue;
-		}
-
 		return f;
 	}
 
diff --git a/drivers/gpu/drm/amd/amdgpu/clearstate_gfx9.h b/drivers/gpu/drm/amd/amdgpu/clearstate_gfx9.h
index 18fd01f3e4b2..003a131bad47 100644
--- a/drivers/gpu/drm/amd/amdgpu/clearstate_gfx9.h
+++ b/drivers/gpu/drm/amd/amdgpu/clearstate_gfx9.h
@@ -1,24 +1,25 @@
-
 /*
-***************************************************************************************************
-*
-*  Trade secret of Advanced Micro Devices, Inc.
-*  Copyright (c) 2010 Advanced Micro Devices, Inc. (unpublished)
-*
-*  All rights reserved.  This notice is intended as a precaution against inadvertent publication and
-*  does not imply publication or any waiver of confidentiality.  The year included in the foregoing
-*  notice is the year of creation of the work.
-*
-***************************************************************************************************
-*/
-/**
-***************************************************************************************************
-* @brief gfx9 Clearstate Definitions
-***************************************************************************************************
-*
-*   Do not edit! This is a machine-generated file!
-*
-*/
+ * Copyright 2017 Advanced Micro Devices, Inc.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ *
+ */
 
 static const unsigned int gfx9_SECT_CONTEXT_def_1[] =
 {
diff --git a/drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c b/drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c
index 3a0b69b09ed6..c9b9c88231aa 100644
--- a/drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c
@@ -1475,21 +1475,23 @@ static void gfx_v9_0_tiling_mode_table_init(struct amdgpu_device *adev)
 
 static void gfx_v9_0_select_se_sh(struct amdgpu_device *adev, u32 se_num, u32 sh_num, u32 instance)
 {
-	u32 data = REG_SET_FIELD(0, GRBM_GFX_INDEX, INSTANCE_BROADCAST_WRITES, 1);
+	u32 data;
 
-	if ((se_num == 0xffffffff) && (sh_num == 0xffffffff)) {
-		data = REG_SET_FIELD(data, GRBM_GFX_INDEX, SH_BROADCAST_WRITES, 1);
-		data = REG_SET_FIELD(data, GRBM_GFX_INDEX, SE_BROADCAST_WRITES, 1);
-	} else if (se_num == 0xffffffff) {
-		data = REG_SET_FIELD(data, GRBM_GFX_INDEX, SH_INDEX, sh_num);
+	if (instance == 0xffffffff)
+		data = REG_SET_FIELD(0, GRBM_GFX_INDEX, INSTANCE_BROADCAST_WRITES, 1);
+	else
+		data = REG_SET_FIELD(0, GRBM_GFX_INDEX, INSTANCE_INDEX, instance);
+
+	if (se_num == 0xffffffff)
 		data = REG_SET_FIELD(data, GRBM_GFX_INDEX, SE_BROADCAST_WRITES, 1);
-	} else if (sh_num == 0xffffffff) {
-		data = REG_SET_FIELD(data, GRBM_GFX_INDEX, SH_BROADCAST_WRITES, 1);
+	else
 		data = REG_SET_FIELD(data, GRBM_GFX_INDEX, SE_INDEX, se_num);
-	} else {
+
+	if (sh_num == 0xffffffff)
+		data = REG_SET_FIELD(data, GRBM_GFX_INDEX, SH_BROADCAST_WRITES, 1);
+	else
 		data = REG_SET_FIELD(data, GRBM_GFX_INDEX, SH_INDEX, sh_num);
-		data = REG_SET_FIELD(data, GRBM_GFX_INDEX, SE_INDEX, se_num);
-	}
+
 	WREG32_SOC15(GC, 0, mmGRBM_GFX_INDEX, data);
 }
 
diff --git a/drivers/gpu/drm/amd/amdgpu/si.c b/drivers/gpu/drm/amd/amdgpu/si.c
index f45fb0f022b3..4267fa417997 100644
--- a/drivers/gpu/drm/amd/amdgpu/si.c
+++ b/drivers/gpu/drm/amd/amdgpu/si.c
@@ -1385,6 +1385,7 @@ static void si_init_golden_registers(struct amdgpu_device *adev)
 		amdgpu_program_register_sequence(adev,
 						 pitcairn_mgcg_cgcg_init,
 						 (const u32)ARRAY_SIZE(pitcairn_mgcg_cgcg_init));
+		break;
 	case CHIP_VERDE:
 		amdgpu_program_register_sequence(adev,
 						 verde_golden_registers,
@@ -1409,6 +1410,7 @@ static void si_init_golden_registers(struct amdgpu_device *adev)
 		amdgpu_program_register_sequence(adev,
 						 oland_mgcg_cgcg_init,
 						 (const u32)ARRAY_SIZE(oland_mgcg_cgcg_init));
+		break;
 	case CHIP_HAINAN:
 		amdgpu_program_register_sequence(adev,
 						 hainan_golden_registers,
diff --git a/drivers/gpu/drm/amd/amdkfd/kfd_device.c b/drivers/gpu/drm/amd/amdkfd/kfd_device.c
index 88187bfc5ea3..3f95f7cb4019 100644
--- a/drivers/gpu/drm/amd/amdkfd/kfd_device.c
+++ b/drivers/gpu/drm/amd/amdkfd/kfd_device.c
@@ -226,10 +226,6 @@ bool kgd2kfd_device_init(struct kfd_dev *kfd,
 
 	kfd->shared_resources = *gpu_resources;
 
-	/* We only use the first MEC */
-	if (kfd->shared_resources.num_mec > 1)
-		kfd->shared_resources.num_mec = 1;
-
 	/* calculate max size of mqds needed for queues */
 	size = max_num_of_queues_per_device *
 			kfd->device_info->mqd_size_aligned;
diff --git a/drivers/gpu/drm/amd/amdkfd/kfd_device_queue_manager.c b/drivers/gpu/drm/amd/amdkfd/kfd_device_queue_manager.c
index 955aa304ff48..602769ced3bd 100644
--- a/drivers/gpu/drm/amd/amdkfd/kfd_device_queue_manager.c
+++ b/drivers/gpu/drm/amd/amdkfd/kfd_device_queue_manager.c
@@ -77,13 +77,6 @@ static bool is_pipe_enabled(struct device_queue_manager *dqm, int mec, int pipe)
 	return false;
 }
 
-unsigned int get_mec_num(struct device_queue_manager *dqm)
-{
-	BUG_ON(!dqm || !dqm->dev);
-
-	return dqm->dev->shared_resources.num_mec;
-}
-
 unsigned int get_queues_num(struct device_queue_manager *dqm)
 {
 	BUG_ON(!dqm || !dqm->dev);
diff --git a/drivers/gpu/drm/amd/amdkfd/kfd_device_queue_manager.h b/drivers/gpu/drm/amd/amdkfd/kfd_device_queue_manager.h
index 66b9615bc3c1..faf820a06400 100644
--- a/drivers/gpu/drm/amd/amdkfd/kfd_device_queue_manager.h
+++ b/drivers/gpu/drm/amd/amdkfd/kfd_device_queue_manager.h
@@ -180,7 +180,6 @@ void device_queue_manager_init_cik(struct device_queue_manager_asic_ops *ops);
 void device_queue_manager_init_vi(struct device_queue_manager_asic_ops *ops);
 void program_sh_mem_settings(struct device_queue_manager *dqm,
 					struct qcm_process_device *qpd);
-unsigned int get_mec_num(struct device_queue_manager *dqm);
 unsigned int get_queues_num(struct device_queue_manager *dqm);
 unsigned int get_queues_per_pipe(struct device_queue_manager *dqm);
 unsigned int get_pipes_per_mec(struct device_queue_manager *dqm);
diff --git a/drivers/gpu/drm/amd/include/kgd_kfd_interface.h b/drivers/gpu/drm/amd/include/kgd_kfd_interface.h
index 91ef1484b3bb..36f376677a53 100644
--- a/drivers/gpu/drm/amd/include/kgd_kfd_interface.h
+++ b/drivers/gpu/drm/amd/include/kgd_kfd_interface.h
@@ -63,9 +63,6 @@ struct kgd2kfd_shared_resources {
 	/* Bit n == 1 means VMID n is available for KFD. */
 	unsigned int compute_vmid_bitmap;
 
-	/* number of mec available from the hardware */
-	uint32_t num_mec;
-
 	/* number of pipes per mec */
 	uint32_t num_pipe_per_mec;
 
diff --git a/drivers/gpu/drm/amd/powerplay/hwmgr/vega10_hwmgr.c b/drivers/gpu/drm/amd/powerplay/hwmgr/vega10_hwmgr.c
index d6f097f44b6c..197174e562d2 100644
--- a/drivers/gpu/drm/amd/powerplay/hwmgr/vega10_hwmgr.c
+++ b/drivers/gpu/drm/amd/powerplay/hwmgr/vega10_hwmgr.c
@@ -2128,15 +2128,9 @@ static int vega10_populate_avfs_parameters(struct pp_hwmgr *hwmgr)
 			pp_table->AvfsGbCksOff.m2_shift = 12;
 			pp_table->AvfsGbCksOff.b_shift = 0;
 
-			for (i = 0; i < dep_table->count; i++) {
-				if (dep_table->entries[i].sclk_offset == 0)
-					pp_table->StaticVoltageOffsetVid[i] = 248;
-				else
-					pp_table->StaticVoltageOffsetVid[i] =
-						(uint8_t)(dep_table->entries[i].sclk_offset *
-								VOLTAGE_VID_OFFSET_SCALE2 /
-								VOLTAGE_VID_OFFSET_SCALE1);
-			}
+			for (i = 0; i < dep_table->count; i++)
+				pp_table->StaticVoltageOffsetVid[i] =
+						convert_to_vid((uint8_t)(dep_table->entries[i].sclk_offset));
 
 			if ((PPREGKEY_VEGA10QUADRATICEQUATION_DFLT !=
 					data->disp_clk_quad_eqn_a) &&
diff --git a/drivers/gpu/drm/bridge/panel.c b/drivers/gpu/drm/bridge/panel.c
index 99f9a4beb859..67fe19e5a9c6 100644
--- a/drivers/gpu/drm/bridge/panel.c
+++ b/drivers/gpu/drm/bridge/panel.c
@@ -161,7 +161,7 @@ struct drm_bridge *drm_panel_bridge_add(struct drm_panel *panel,
 	int ret;
 
 	if (!panel)
-		return ERR_PTR(EINVAL);
+		return ERR_PTR(-EINVAL);
 
 	panel_bridge = devm_kzalloc(panel->dev, sizeof(*panel_bridge),
 				    GFP_KERNEL);
diff --git a/drivers/gpu/drm/bridge/tc358767.c b/drivers/gpu/drm/bridge/tc358767.c
index 5c26488e7a2d..0529e500c534 100644
--- a/drivers/gpu/drm/bridge/tc358767.c
+++ b/drivers/gpu/drm/bridge/tc358767.c
@@ -1255,7 +1255,7 @@ static int tc_probe(struct i2c_client *client, const struct i2c_device_id *id)
 
 	/* port@2 is the output port */
 	ret = drm_of_find_panel_or_bridge(dev->of_node, 2, 0, &tc->panel, NULL);
-	if (ret)
+	if (ret && ret != -ENODEV)
 		return ret;
 
 	/* Shut down GPIO is optional */
diff --git a/drivers/gpu/drm/drm_dp_aux_dev.c b/drivers/gpu/drm/drm_dp_aux_dev.c
index ec1ed94b2390..d34e5096887a 100644
--- a/drivers/gpu/drm/drm_dp_aux_dev.c
+++ b/drivers/gpu/drm/drm_dp_aux_dev.c
@@ -32,6 +32,7 @@
 #include <linux/kernel.h>
 #include <linux/module.h>
 #include <linux/uaccess.h>
+#include <linux/uio.h>
 #include <drm/drm_dp_helper.h>
 #include <drm/drm_crtc.h>
 #include <drm/drmP.h>
@@ -140,101 +141,83 @@ static loff_t auxdev_llseek(struct file *file, loff_t offset, int whence)
 	return fixed_size_llseek(file, offset, whence, AUX_MAX_OFFSET);
 }
 
-static ssize_t auxdev_read(struct file *file, char __user *buf, size_t count,
-			   loff_t *offset)
+static ssize_t auxdev_read_iter(struct kiocb *iocb, struct iov_iter *to)
 {
-	size_t bytes_pending, num_bytes_processed = 0;
-	struct drm_dp_aux_dev *aux_dev = file->private_data;
+	struct drm_dp_aux_dev *aux_dev = iocb->ki_filp->private_data;
+	loff_t pos = iocb->ki_pos;
 	ssize_t res = 0;
 
 	if (!atomic_inc_not_zero(&aux_dev->usecount))
 		return -ENODEV;
 
-	bytes_pending = min((loff_t)count, AUX_MAX_OFFSET - (*offset));
-
-	if (!access_ok(VERIFY_WRITE, buf, bytes_pending)) {
-		res = -EFAULT;
-		goto out;
-	}
+	iov_iter_truncate(to, AUX_MAX_OFFSET - pos);
 
-	while (bytes_pending > 0) {
-		uint8_t localbuf[DP_AUX_MAX_PAYLOAD_BYTES];
-		ssize_t todo = min_t(size_t, bytes_pending, sizeof(localbuf));
+	while (iov_iter_count(to)) {
+		uint8_t buf[DP_AUX_MAX_PAYLOAD_BYTES];
+		ssize_t todo = min(iov_iter_count(to), sizeof(buf));
 
 		if (signal_pending(current)) {
-			res = num_bytes_processed ?
-				num_bytes_processed : -ERESTARTSYS;
-			goto out;
+			res = -ERESTARTSYS;
+			break;
 		}
 
-		res = drm_dp_dpcd_read(aux_dev->aux, *offset, localbuf, todo);
-		if (res <= 0) {
-			res = num_bytes_processed ? num_bytes_processed : res;
-			goto out;
-		}
-		if (__copy_to_user(buf + num_bytes_processed, localbuf, res)) {
-			res = num_bytes_processed ?
-				num_bytes_processed : -EFAULT;
-			goto out;
+		res = drm_dp_dpcd_read(aux_dev->aux, pos, buf, todo);
+		if (res <= 0)
+			break;
+
+		if (copy_to_iter(buf, res, to) != res) {
+			res = -EFAULT;
+			break;
 		}
-		bytes_pending -= res;
-		*offset += res;
-		num_bytes_processed += res;
-		res = num_bytes_processed;
+
+		pos += res;
 	}
 
-out:
+	if (pos != iocb->ki_pos)
+		res = pos - iocb->ki_pos;
+	iocb->ki_pos = pos;
+
 	atomic_dec(&aux_dev->usecount);
 	wake_up_atomic_t(&aux_dev->usecount);
 	return res;
 }
 
-static ssize_t auxdev_write(struct file *file, const char __user *buf,
-			    size_t count, loff_t *offset)
+static ssize_t auxdev_write_iter(struct kiocb *iocb, struct iov_iter *from)
 {
-	size_t bytes_pending, num_bytes_processed = 0;
-	struct drm_dp_aux_dev *aux_dev = file->private_data;
+	struct drm_dp_aux_dev *aux_dev = iocb->ki_filp->private_data;
+	loff_t pos = iocb->ki_pos;
 	ssize_t res = 0;
 
 	if (!atomic_inc_not_zero(&aux_dev->usecount))
 		return -ENODEV;
 
-	bytes_pending = min((loff_t)count, AUX_MAX_OFFSET - *offset);
-
-	if (!access_ok(VERIFY_READ, buf, bytes_pending)) {
-		res = -EFAULT;
-		goto out;
-	}
+	iov_iter_truncate(from, AUX_MAX_OFFSET - pos);
 
-	while (bytes_pending > 0) {
-		uint8_t localbuf[DP_AUX_MAX_PAYLOAD_BYTES];
-		ssize_t todo = min_t(size_t, bytes_pending, sizeof(localbuf));
+	while (iov_iter_count(from)) {
+		uint8_t buf[DP_AUX_MAX_PAYLOAD_BYTES];
+		ssize_t todo = min(iov_iter_count(from), sizeof(buf));
 
 		if (signal_pending(current)) {
-			res = num_bytes_processed ?
-				num_bytes_processed : -ERESTARTSYS;
-			goto out;
+			res = -ERESTARTSYS;
+			break;
 		}
 
-		if (__copy_from_user(localbuf,
-				     buf + num_bytes_processed, todo)) {
-			res = num_bytes_processed ?
-				num_bytes_processed : -EFAULT;
-			goto out;
+		if (!copy_from_iter_full(buf, todo, from)) {
+			res = -EFAULT;
+			break;
 		}
 
-		res = drm_dp_dpcd_write(aux_dev->aux, *offset, localbuf, todo);
-		if (res <= 0) {
-			res = num_bytes_processed ? num_bytes_processed : res;
-			goto out;
-		}
-		bytes_pending -= res;
-		*offset += res;
-		num_bytes_processed += res;
-		res = num_bytes_processed;
+		res = drm_dp_dpcd_write(aux_dev->aux, pos, buf, todo);
+		if (res <= 0)
+			break;
+
+		pos += res;
 	}
 
-out:
+	if (pos != iocb->ki_pos)
+		res = pos - iocb->ki_pos;
+	iocb->ki_pos = pos;
+
 	atomic_dec(&aux_dev->usecount);
 	wake_up_atomic_t(&aux_dev->usecount);
 	return res;
@@ -251,8 +234,8 @@ static int auxdev_release(struct inode *inode, struct file *file)
 static const struct file_operations auxdev_fops = {
 	.owner		= THIS_MODULE,
 	.llseek		= auxdev_llseek,
-	.read		= auxdev_read,
-	.write		= auxdev_write,
+	.read_iter	= auxdev_read_iter,
+	.write_iter	= auxdev_write_iter,
 	.open		= auxdev_open,
 	.release	= auxdev_release,
 };
diff --git a/drivers/gpu/drm/drm_dp_helper.c b/drivers/gpu/drm/drm_dp_helper.c
index 213fb837e1c4..08af8d6b844b 100644
--- a/drivers/gpu/drm/drm_dp_helper.c
+++ b/drivers/gpu/drm/drm_dp_helper.c
@@ -544,7 +544,7 @@ void drm_dp_downstream_debug(struct seq_file *m,
 				 DP_DETAILED_CAP_INFO_AVAILABLE;
 	int clk;
 	int bpc;
-	char id[6];
+	char id[7];
 	int len;
 	uint8_t rev[2];
 	int type = port_cap[0] & DP_DS_PORT_TYPE_MASK;
@@ -583,6 +583,7 @@ void drm_dp_downstream_debug(struct seq_file *m,
 		seq_puts(m, "\t\tType: N/A\n");
 	}
 
+	memset(id, 0, sizeof(id));
 	drm_dp_downstream_id(aux, id);
 	seq_printf(m, "\t\tID: %s\n", id);
 
@@ -591,7 +592,7 @@ void drm_dp_downstream_debug(struct seq_file *m,
 		seq_printf(m, "\t\tHW: %d.%d\n",
 			   (rev[0] & 0xf0) >> 4, rev[0] & 0xf);
 
-	len = drm_dp_dpcd_read(aux, DP_BRANCH_SW_REV, &rev, 2);
+	len = drm_dp_dpcd_read(aux, DP_BRANCH_SW_REV, rev, 2);
 	if (len > 0)
 		seq_printf(m, "\t\tSW: %d.%d\n", rev[0], rev[1]);
 
diff --git a/drivers/gpu/drm/drm_dp_mst_topology.c b/drivers/gpu/drm/drm_dp_mst_topology.c
index bfd237c15e76..ae5f06895562 100644
--- a/drivers/gpu/drm/drm_dp_mst_topology.c
+++ b/drivers/gpu/drm/drm_dp_mst_topology.c
@@ -330,6 +330,13 @@ static bool drm_dp_sideband_msg_build(struct drm_dp_sideband_msg_rx *msg,
 			return false;
 		}
 
+		/*
+		 * ignore out-of-order messages or messages that are part of a
+		 * failed transaction
+		 */
+		if (!recv_hdr.somt && !msg->have_somt)
+			return false;
+
 		/* get length contained in this portion */
 		msg->curchunk_len = recv_hdr.msg_len;
 		msg->curchunk_hdrlen = hdrlen;
@@ -2164,7 +2171,7 @@ out_unlock:
 }
 EXPORT_SYMBOL(drm_dp_mst_topology_mgr_resume);
 
-static void drm_dp_get_one_sb_msg(struct drm_dp_mst_topology_mgr *mgr, bool up)
+static bool drm_dp_get_one_sb_msg(struct drm_dp_mst_topology_mgr *mgr, bool up)
 {
 	int len;
 	u8 replyblock[32];
@@ -2179,12 +2186,12 @@ static void drm_dp_get_one_sb_msg(struct drm_dp_mst_topology_mgr *mgr, bool up)
 			       replyblock, len);
 	if (ret != len) {
 		DRM_DEBUG_KMS("failed to read DPCD down rep %d %d\n", len, ret);
-		return;
+		return false;
 	}
 	ret = drm_dp_sideband_msg_build(msg, replyblock, len, true);
 	if (!ret) {
 		DRM_DEBUG_KMS("sideband msg build failed %d\n", replyblock[0]);
-		return;
+		return false;
 	}
 	replylen = msg->curchunk_len + msg->curchunk_hdrlen;
 
@@ -2196,21 +2203,32 @@ static void drm_dp_get_one_sb_msg(struct drm_dp_mst_topology_mgr *mgr, bool up)
 		ret = drm_dp_dpcd_read(mgr->aux, basereg + curreply,
 				    replyblock, len);
 		if (ret != len) {
-			DRM_DEBUG_KMS("failed to read a chunk\n");
+			DRM_DEBUG_KMS("failed to read a chunk (len %d, ret %d)\n",
+				      len, ret);
+			return false;
 		}
+
 		ret = drm_dp_sideband_msg_build(msg, replyblock, len, false);
-		if (ret == false)
+		if (!ret) {
 			DRM_DEBUG_KMS("failed to build sideband msg\n");
+			return false;
+		}
+
 		curreply += len;
 		replylen -= len;
 	}
+	return true;
 }
 
 static int drm_dp_mst_handle_down_rep(struct drm_dp_mst_topology_mgr *mgr)
 {
 	int ret = 0;
 
-	drm_dp_get_one_sb_msg(mgr, false);
+	if (!drm_dp_get_one_sb_msg(mgr, false)) {
+		memset(&mgr->down_rep_recv, 0,
+		       sizeof(struct drm_dp_sideband_msg_rx));
+		return 0;
+	}
 
 	if (mgr->down_rep_recv.have_eomt) {
 		struct drm_dp_sideband_msg_tx *txmsg;
@@ -2266,7 +2284,12 @@ static int drm_dp_mst_handle_down_rep(struct drm_dp_mst_topology_mgr *mgr)
 static int drm_dp_mst_handle_up_req(struct drm_dp_mst_topology_mgr *mgr)
 {
 	int ret = 0;
-	drm_dp_get_one_sb_msg(mgr, true);
+
+	if (!drm_dp_get_one_sb_msg(mgr, true)) {
+		memset(&mgr->up_req_recv, 0,
+		       sizeof(struct drm_dp_sideband_msg_rx));
+		return 0;
+	}
 
 	if (mgr->up_req_recv.have_eomt) {
 		struct drm_dp_sideband_msg_req_body msg;
@@ -2318,7 +2341,9 @@ static int drm_dp_mst_handle_up_req(struct drm_dp_mst_topology_mgr *mgr)
 			DRM_DEBUG_KMS("Got RSN: pn: %d avail_pbn %d\n", msg.u.resource_stat.port_number, msg.u.resource_stat.available_pbn);
 		}
 
-		drm_dp_put_mst_branch_device(mstb);
+		if (mstb)
+			drm_dp_put_mst_branch_device(mstb);
+
 		memset(&mgr->up_req_recv, 0, sizeof(struct drm_dp_sideband_msg_rx));
 	}
 	return ret;
diff --git a/drivers/gpu/drm/drm_framebuffer.c b/drivers/gpu/drm/drm_framebuffer.c
index fc8ef42203ec..b3ef4f1c2630 100644
--- a/drivers/gpu/drm/drm_framebuffer.c
+++ b/drivers/gpu/drm/drm_framebuffer.c
@@ -832,6 +832,7 @@ unlock:
 		drm_atomic_clean_old_fb(dev, plane_mask, ret);
 
 	if (ret == -EDEADLK) {
+		drm_atomic_state_clear(state);
 		drm_modeset_backoff(&ctx);
 		goto retry;
 	}
diff --git a/drivers/gpu/drm/drm_ioc32.c b/drivers/gpu/drm/drm_ioc32.c
index 0b2d8c4a2fa5..d1f202852028 100644
--- a/drivers/gpu/drm/drm_ioc32.c
+++ b/drivers/gpu/drm/drm_ioc32.c
@@ -112,6 +112,9 @@ static int compat_drm_version(struct file *file, unsigned int cmd,
 	v32.version_major = v.version_major;
 	v32.version_minor = v.version_minor;
 	v32.version_patchlevel = v.version_patchlevel;
+	v32.name_len = v.name_len;
+	v32.date_len = v.date_len;
+	v32.desc_len = v.desc_len;
 	if (copy_to_user((void __user *)arg, &v32, sizeof(v32)))
 		return -EFAULT;
 	return 0;
diff --git a/drivers/gpu/drm/drm_vblank.c b/drivers/gpu/drm/drm_vblank.c
index 463e4d81fb0d..e9f33cd805dd 100644
--- a/drivers/gpu/drm/drm_vblank.c
+++ b/drivers/gpu/drm/drm_vblank.c
@@ -242,7 +242,7 @@ static void drm_update_vblank_count(struct drm_device *dev, unsigned int pipe,
 	 * Otherwise reinitialize delayed at next vblank interrupt and assign 0
 	 * for now, to mark the vblanktimestamp as invalid.
 	 */
-	if (!rc && in_vblank_irq)
+	if (!rc && !in_vblank_irq)
 		t_vblank = (struct timeval) {0, 0};
 
 	store_vblank(dev, pipe, diff, &t_vblank, cur_vblank);
diff --git a/drivers/gpu/drm/etnaviv/etnaviv_gem_submit.c b/drivers/gpu/drm/etnaviv/etnaviv_gem_submit.c
index 5bd93169dac2..6463fc2c736f 100644
--- a/drivers/gpu/drm/etnaviv/etnaviv_gem_submit.c
+++ b/drivers/gpu/drm/etnaviv/etnaviv_gem_submit.c
@@ -270,8 +270,8 @@ static int submit_reloc(struct etnaviv_gem_submit *submit, void *stream,
 		if (ret)
 			return ret;
 
-		if (r->reloc_offset >= bo->obj->base.size - sizeof(*ptr)) {
-			DRM_ERROR("relocation %u outside object", i);
+		if (r->reloc_offset > bo->obj->base.size - sizeof(*ptr)) {
+			DRM_ERROR("relocation %u outside object\n", i);
 			return -EINVAL;
 		}
 
diff --git a/drivers/gpu/drm/exynos/Kconfig b/drivers/gpu/drm/exynos/Kconfig
index 1d185347c64c..305dc3d4ff77 100644
--- a/drivers/gpu/drm/exynos/Kconfig
+++ b/drivers/gpu/drm/exynos/Kconfig
@@ -75,6 +75,7 @@ config DRM_EXYNOS_DP
 config DRM_EXYNOS_HDMI
 	bool "HDMI"
 	depends on DRM_EXYNOS_MIXER || DRM_EXYNOS5433_DECON
+	select CEC_CORE if CEC_NOTIFIER
 	help
 	  Choose this option if you want to use Exynos HDMI for DRM.
 
diff --git a/drivers/gpu/drm/exynos/exynos_drm_drv.c b/drivers/gpu/drm/exynos/exynos_drm_drv.c
index 35a8dfc93836..242bd50faa26 100644
--- a/drivers/gpu/drm/exynos/exynos_drm_drv.c
+++ b/drivers/gpu/drm/exynos/exynos_drm_drv.c
@@ -453,7 +453,6 @@ static int exynos_drm_platform_probe(struct platform_device *pdev)
 	struct component_match *match;
 
 	pdev->dev.coherent_dma_mask = DMA_BIT_MASK(32);
-	exynos_drm_driver.num_ioctls = ARRAY_SIZE(exynos_ioctls);
 
 	match = exynos_drm_match_add(&pdev->dev);
 	if (IS_ERR(match))
diff --git a/drivers/gpu/drm/exynos/exynos_drm_dsi.c b/drivers/gpu/drm/exynos/exynos_drm_dsi.c
index a11b79596e2f..b6a46d9a016e 100644
--- a/drivers/gpu/drm/exynos/exynos_drm_dsi.c
+++ b/drivers/gpu/drm/exynos/exynos_drm_dsi.c
@@ -1651,8 +1651,6 @@ static int exynos_dsi_parse_dt(struct exynos_dsi *dsi)
 		return ret;
 
 	dsi->bridge_node = of_graph_get_remote_node(node, DSI_PORT_IN, 0);
-	if (!dsi->bridge_node)
-		return -EINVAL;
 
 	return 0;
 }
@@ -1687,9 +1685,11 @@ static int exynos_dsi_bind(struct device *dev, struct device *master,
 		return ret;
 	}
 
-	bridge = of_drm_find_bridge(dsi->bridge_node);
-	if (bridge)
-		drm_bridge_attach(encoder, bridge, NULL);
+	if (dsi->bridge_node) {
+		bridge = of_drm_find_bridge(dsi->bridge_node);
+		if (bridge)
+			drm_bridge_attach(encoder, bridge, NULL);
+	}
 
 	return mipi_dsi_host_register(&dsi->dsi_host);
 }
diff --git a/drivers/gpu/drm/exynos/exynos_drm_fb.c b/drivers/gpu/drm/exynos/exynos_drm_fb.c
index d48fd7c918f8..73217c281c9a 100644
--- a/drivers/gpu/drm/exynos/exynos_drm_fb.c
+++ b/drivers/gpu/drm/exynos/exynos_drm_fb.c
@@ -145,13 +145,19 @@ static struct drm_framebuffer *
 exynos_user_fb_create(struct drm_device *dev, struct drm_file *file_priv,
 		      const struct drm_mode_fb_cmd2 *mode_cmd)
 {
+	const struct drm_format_info *info = drm_get_format_info(dev, mode_cmd);
 	struct exynos_drm_gem *exynos_gem[MAX_FB_BUFFER];
 	struct drm_gem_object *obj;
 	struct drm_framebuffer *fb;
 	int i;
 	int ret;
 
-	for (i = 0; i < drm_format_num_planes(mode_cmd->pixel_format); i++) {
+	for (i = 0; i < info->num_planes; i++) {
+		unsigned int height = (i == 0) ? mode_cmd->height :
+				     DIV_ROUND_UP(mode_cmd->height, info->vsub);
+		unsigned long size = height * mode_cmd->pitches[i] +
+				     mode_cmd->offsets[i];
+
 		obj = drm_gem_object_lookup(file_priv, mode_cmd->handles[i]);
 		if (!obj) {
 			DRM_ERROR("failed to lookup gem object\n");
@@ -160,6 +166,12 @@ exynos_user_fb_create(struct drm_device *dev, struct drm_file *file_priv,
 		}
 
 		exynos_gem[i] = to_exynos_gem(obj);
+
+		if (size > exynos_gem[i]->size) {
+			i++;
+			ret = -EINVAL;
+			goto err;
+		}
 	}
 
 	fb = exynos_drm_framebuffer_init(dev, mode_cmd, exynos_gem, i);
diff --git a/drivers/gpu/drm/exynos/exynos_drm_mic.c b/drivers/gpu/drm/exynos/exynos_drm_mic.c
index e45720543a45..16bbee897e0d 100644
--- a/drivers/gpu/drm/exynos/exynos_drm_mic.c
+++ b/drivers/gpu/drm/exynos/exynos_drm_mic.c
@@ -340,16 +340,10 @@ static int exynos_mic_bind(struct device *dev, struct device *master,
 			   void *data)
 {
 	struct exynos_mic *mic = dev_get_drvdata(dev);
-	int ret;
 
-	mic->bridge.funcs = &mic_bridge_funcs;
-	mic->bridge.of_node = dev->of_node;
 	mic->bridge.driver_private = mic;
-	ret = drm_bridge_add(&mic->bridge);
-	if (ret)
-		DRM_ERROR("mic: Failed to add MIC to the global bridge list\n");
 
-	return ret;
+	return 0;
 }
 
 static void exynos_mic_unbind(struct device *dev, struct device *master,
@@ -365,8 +359,6 @@ static void exynos_mic_unbind(struct device *dev, struct device *master,
 
 already_disabled:
 	mutex_unlock(&mic_mutex);
-
-	drm_bridge_remove(&mic->bridge);
 }
 
 static const struct component_ops exynos_mic_component_ops = {
@@ -461,6 +453,15 @@ static int exynos_mic_probe(struct platform_device *pdev)
 
 	platform_set_drvdata(pdev, mic);
 
+	mic->bridge.funcs = &mic_bridge_funcs;
+	mic->bridge.of_node = dev->of_node;
+
+	ret = drm_bridge_add(&mic->bridge);
+	if (ret) {
+		DRM_ERROR("mic: Failed to add MIC to the global bridge list\n");
+		return ret;
+	}
+
 	pm_runtime_enable(dev);
 
 	ret = component_add(dev, &exynos_mic_component_ops);
@@ -479,8 +480,13 @@ err:
 
 static int exynos_mic_remove(struct platform_device *pdev)
 {
+	struct exynos_mic *mic = platform_get_drvdata(pdev);
+
 	component_del(&pdev->dev, &exynos_mic_component_ops);
 	pm_runtime_disable(&pdev->dev);
+
+	drm_bridge_remove(&mic->bridge);
+
 	return 0;
 }
 
diff --git a/drivers/gpu/drm/exynos/exynos_hdmi.c b/drivers/gpu/drm/exynos/exynos_hdmi.c
index 06bfbe400cf1..d3b69d66736f 100644
--- a/drivers/gpu/drm/exynos/exynos_hdmi.c
+++ b/drivers/gpu/drm/exynos/exynos_hdmi.c
@@ -1501,8 +1501,6 @@ static void hdmi_disable(struct drm_encoder *encoder)
 	 */
 	cancel_delayed_work(&hdata->hotplug_work);
 	cec_notifier_set_phys_addr(hdata->notifier, CEC_PHYS_ADDR_INVALID);
-
-	hdmiphy_disable(hdata);
 }
 
 static const struct drm_encoder_helper_funcs exynos_hdmi_encoder_helper_funcs = {
@@ -1676,7 +1674,7 @@ static int hdmi_resources_init(struct hdmi_context *hdata)
 	return hdmi_bridge_init(hdata);
 }
 
-static struct of_device_id hdmi_match_types[] = {
+static const struct of_device_id hdmi_match_types[] = {
 	{
 		.compatible = "samsung,exynos4210-hdmi",
 		.data = &exynos4210_hdmi_driver_data,
@@ -1934,8 +1932,7 @@ static int hdmi_remove(struct platform_device *pdev)
 	return 0;
 }
 
-#ifdef CONFIG_PM
-static int exynos_hdmi_suspend(struct device *dev)
+static int __maybe_unused exynos_hdmi_suspend(struct device *dev)
 {
 	struct hdmi_context *hdata = dev_get_drvdata(dev);
 
@@ -1944,7 +1941,7 @@ static int exynos_hdmi_suspend(struct device *dev)
 	return 0;
 }
 
-static int exynos_hdmi_resume(struct device *dev)
+static int __maybe_unused exynos_hdmi_resume(struct device *dev)
 {
 	struct hdmi_context *hdata = dev_get_drvdata(dev);
 	int ret;
@@ -1955,7 +1952,6 @@ static int exynos_hdmi_resume(struct device *dev)
 
 	return 0;
 }
-#endif
 
 static const struct dev_pm_ops exynos_hdmi_pm_ops = {
 	SET_RUNTIME_PM_OPS(exynos_hdmi_suspend, exynos_hdmi_resume, NULL)
diff --git a/drivers/gpu/drm/exynos/exynos_mixer.c b/drivers/gpu/drm/exynos/exynos_mixer.c
index 6bed4f3ffcd6..a998a8dd783c 100644
--- a/drivers/gpu/drm/exynos/exynos_mixer.c
+++ b/drivers/gpu/drm/exynos/exynos_mixer.c
@@ -1094,28 +1094,28 @@ static const struct exynos_drm_crtc_ops mixer_crtc_ops = {
 	.atomic_check		= mixer_atomic_check,
 };
 
-static struct mixer_drv_data exynos5420_mxr_drv_data = {
+static const struct mixer_drv_data exynos5420_mxr_drv_data = {
 	.version = MXR_VER_128_0_0_184,
 	.is_vp_enabled = 0,
 };
 
-static struct mixer_drv_data exynos5250_mxr_drv_data = {
+static const struct mixer_drv_data exynos5250_mxr_drv_data = {
 	.version = MXR_VER_16_0_33_0,
 	.is_vp_enabled = 0,
 };
 
-static struct mixer_drv_data exynos4212_mxr_drv_data = {
+static const struct mixer_drv_data exynos4212_mxr_drv_data = {
 	.version = MXR_VER_0_0_0_16,
 	.is_vp_enabled = 1,
 };
 
-static struct mixer_drv_data exynos4210_mxr_drv_data = {
+static const struct mixer_drv_data exynos4210_mxr_drv_data = {
 	.version = MXR_VER_0_0_0_16,
 	.is_vp_enabled = 1,
 	.has_sclk = 1,
 };
 
-static struct of_device_id mixer_match_types[] = {
+static const struct of_device_id mixer_match_types[] = {
 	{
 		.compatible = "samsung,exynos4210-mixer",
 		.data	= &exynos4210_mxr_drv_data,
diff --git a/drivers/gpu/drm/i915/gvt/cmd_parser.c b/drivers/gpu/drm/i915/gvt/cmd_parser.c
index 51241de5e7a7..713848c36349 100644
--- a/drivers/gpu/drm/i915/gvt/cmd_parser.c
+++ b/drivers/gpu/drm/i915/gvt/cmd_parser.c
@@ -2536,6 +2536,11 @@ static int scan_workload(struct intel_vgpu_workload *workload)
 		gma_head == gma_tail)
 		return 0;
 
+	if (!intel_gvt_ggtt_validate_range(s.vgpu, s.ring_start, s.ring_size)) {
+		ret = -EINVAL;
+		goto out;
+	}
+
 	ret = ip_gma_set(&s, gma_head);
 	if (ret)
 		goto out;
@@ -2579,6 +2584,11 @@ static int scan_wa_ctx(struct intel_shadow_wa_ctx *wa_ctx)
 	s.rb_va = wa_ctx->indirect_ctx.shadow_va;
 	s.workload = workload;
 
+	if (!intel_gvt_ggtt_validate_range(s.vgpu, s.ring_start, s.ring_size)) {
+		ret = -EINVAL;
+		goto out;
+	}
+
 	ret = ip_gma_set(&s, gma_head);
 	if (ret)
 		goto out;
diff --git a/drivers/gpu/drm/i915/gvt/display.c b/drivers/gpu/drm/i915/gvt/display.c
index e0261fcc5b50..7cb0818a13de 100644
--- a/drivers/gpu/drm/i915/gvt/display.c
+++ b/drivers/gpu/drm/i915/gvt/display.c
@@ -197,6 +197,12 @@ static void emulate_monitor_status_change(struct intel_vgpu *vgpu)
 			(TRANS_DDI_BPC_8 | TRANS_DDI_MODE_SELECT_DP_SST |
 			(PORT_B << TRANS_DDI_PORT_SHIFT) |
 			TRANS_DDI_FUNC_ENABLE);
+		if (IS_BROADWELL(dev_priv)) {
+			vgpu_vreg(vgpu, PORT_CLK_SEL(PORT_B)) &=
+				~PORT_CLK_SEL_MASK;
+			vgpu_vreg(vgpu, PORT_CLK_SEL(PORT_B)) |=
+				PORT_CLK_SEL_LCPLL_810;
+		}
 		vgpu_vreg(vgpu, DDI_BUF_CTL(PORT_B)) |= DDI_BUF_CTL_ENABLE;
 		vgpu_vreg(vgpu, DDI_BUF_CTL(PORT_B)) &= ~DDI_BUF_IS_IDLE;
 		vgpu_vreg(vgpu, SDEISR) |= SDE_PORTB_HOTPLUG_CPT;
@@ -211,6 +217,12 @@ static void emulate_monitor_status_change(struct intel_vgpu *vgpu)
 			(TRANS_DDI_BPC_8 | TRANS_DDI_MODE_SELECT_DP_SST |
 			(PORT_C << TRANS_DDI_PORT_SHIFT) |
 			TRANS_DDI_FUNC_ENABLE);
+		if (IS_BROADWELL(dev_priv)) {
+			vgpu_vreg(vgpu, PORT_CLK_SEL(PORT_C)) &=
+				~PORT_CLK_SEL_MASK;
+			vgpu_vreg(vgpu, PORT_CLK_SEL(PORT_C)) |=
+				PORT_CLK_SEL_LCPLL_810;
+		}
 		vgpu_vreg(vgpu, DDI_BUF_CTL(PORT_C)) |= DDI_BUF_CTL_ENABLE;
 		vgpu_vreg(vgpu, DDI_BUF_CTL(PORT_C)) &= ~DDI_BUF_IS_IDLE;
 		vgpu_vreg(vgpu, SFUSE_STRAP) |= SFUSE_STRAP_DDIC_DETECTED;
@@ -225,6 +237,12 @@ static void emulate_monitor_status_change(struct intel_vgpu *vgpu)
 			(TRANS_DDI_BPC_8 | TRANS_DDI_MODE_SELECT_DP_SST |
 			(PORT_D << TRANS_DDI_PORT_SHIFT) |
 			TRANS_DDI_FUNC_ENABLE);
+		if (IS_BROADWELL(dev_priv)) {
+			vgpu_vreg(vgpu, PORT_CLK_SEL(PORT_D)) &=
+				~PORT_CLK_SEL_MASK;
+			vgpu_vreg(vgpu, PORT_CLK_SEL(PORT_D)) |=
+				PORT_CLK_SEL_LCPLL_810;
+		}
 		vgpu_vreg(vgpu, DDI_BUF_CTL(PORT_D)) |= DDI_BUF_CTL_ENABLE;
 		vgpu_vreg(vgpu, DDI_BUF_CTL(PORT_D)) &= ~DDI_BUF_IS_IDLE;
 		vgpu_vreg(vgpu, SFUSE_STRAP) |= SFUSE_STRAP_DDID_DETECTED;
@@ -244,6 +262,10 @@ static void emulate_monitor_status_change(struct intel_vgpu *vgpu)
 
 		vgpu_vreg(vgpu, DDI_BUF_CTL(PORT_A)) |= DDI_INIT_DISPLAY_DETECTED;
 	}
+
+	/* Clear host CRT status, so guest couldn't detect this host CRT. */
+	if (IS_BROADWELL(dev_priv))
+		vgpu_vreg(vgpu, PCH_ADPA) &= ~ADPA_CRT_HOTPLUG_MONITOR_MASK;
 }
 
 static void clean_virtual_dp_monitor(struct intel_vgpu *vgpu, int port_num)
@@ -301,27 +323,27 @@ void intel_gvt_check_vblank_emulation(struct intel_gvt *gvt)
 {
 	struct intel_gvt_irq *irq = &gvt->irq;
 	struct intel_vgpu *vgpu;
-	bool have_enabled_pipe = false;
 	int pipe, id;
 
 	if (WARN_ON(!mutex_is_locked(&gvt->lock)))
 		return;
 
-	hrtimer_cancel(&irq->vblank_timer.timer);
-
 	for_each_active_vgpu(gvt, vgpu, id) {
 		for (pipe = 0; pipe < I915_MAX_PIPES; pipe++) {
-			have_enabled_pipe =
-				pipe_is_enabled(vgpu, pipe);
-			if (have_enabled_pipe)
-				break;
+			if (pipe_is_enabled(vgpu, pipe))
+				goto out;
 		}
 	}
 
-	if (have_enabled_pipe)
-		hrtimer_start(&irq->vblank_timer.timer,
-			ktime_add_ns(ktime_get(), irq->vblank_timer.period),
-			HRTIMER_MODE_ABS);
+	/* all the pipes are disabled */
+	hrtimer_cancel(&irq->vblank_timer.timer);
+	return;
+
+out:
+	hrtimer_start(&irq->vblank_timer.timer,
+		ktime_add_ns(ktime_get(), irq->vblank_timer.period),
+		HRTIMER_MODE_ABS);
+
 }
 
 static void emulate_vblank_on_pipe(struct intel_vgpu *vgpu, int pipe)
diff --git a/drivers/gpu/drm/i915/gvt/execlist.c b/drivers/gpu/drm/i915/gvt/execlist.c
index 700050556242..1648887d3f55 100644
--- a/drivers/gpu/drm/i915/gvt/execlist.c
+++ b/drivers/gpu/drm/i915/gvt/execlist.c
@@ -46,6 +46,8 @@
 #define same_context(a, b) (((a)->context_id == (b)->context_id) && \
 		((a)->lrca == (b)->lrca))
 
+static void clean_workloads(struct intel_vgpu *vgpu, unsigned long engine_mask);
+
 static int context_switch_events[] = {
 	[RCS] = RCS_AS_CONTEXT_SWITCH,
 	[BCS] = BCS_AS_CONTEXT_SWITCH,
@@ -499,10 +501,10 @@ static void release_shadow_wa_ctx(struct intel_shadow_wa_ctx *wa_ctx)
 static int complete_execlist_workload(struct intel_vgpu_workload *workload)
 {
 	struct intel_vgpu *vgpu = workload->vgpu;
-	struct intel_vgpu_execlist *execlist =
-		&vgpu->execlist[workload->ring_id];
+	int ring_id = workload->ring_id;
+	struct intel_vgpu_execlist *execlist = &vgpu->execlist[ring_id];
 	struct intel_vgpu_workload *next_workload;
-	struct list_head *next = workload_q_head(vgpu, workload->ring_id)->next;
+	struct list_head *next = workload_q_head(vgpu, ring_id)->next;
 	bool lite_restore = false;
 	int ret;
 
@@ -512,10 +514,25 @@ static int complete_execlist_workload(struct intel_vgpu_workload *workload)
 	release_shadow_batch_buffer(workload);
 	release_shadow_wa_ctx(&workload->wa_ctx);
 
-	if (workload->status || vgpu->resetting)
+	if (workload->status || (vgpu->resetting_eng & ENGINE_MASK(ring_id))) {
+		/* if workload->status is not successful means HW GPU
+		 * has occurred GPU hang or something wrong with i915/GVT,
+		 * and GVT won't inject context switch interrupt to guest.
+		 * So this error is a vGPU hang actually to the guest.
+		 * According to this we should emunlate a vGPU hang. If
+		 * there are pending workloads which are already submitted
+		 * from guest, we should clean them up like HW GPU does.
+		 *
+		 * if it is in middle of engine resetting, the pending
+		 * workloads won't be submitted to HW GPU and will be
+		 * cleaned up during the resetting process later, so doing
+		 * the workload clean up here doesn't have any impact.
+		 **/
+		clean_workloads(vgpu, ENGINE_MASK(ring_id));
 		goto out;
+	}
 
-	if (!list_empty(workload_q_head(vgpu, workload->ring_id))) {
+	if (!list_empty(workload_q_head(vgpu, ring_id))) {
 		struct execlist_ctx_descriptor_format *this_desc, *next_desc;
 
 		next_workload = container_of(next,
diff --git a/drivers/gpu/drm/i915/gvt/firmware.c b/drivers/gpu/drm/i915/gvt/firmware.c
index 5dad9298b2d5..a26c1705430e 100644
--- a/drivers/gpu/drm/i915/gvt/firmware.c
+++ b/drivers/gpu/drm/i915/gvt/firmware.c
@@ -72,11 +72,13 @@ static int expose_firmware_sysfs(struct intel_gvt *gvt)
 	struct intel_gvt_device_info *info = &gvt->device_info;
 	struct pci_dev *pdev = gvt->dev_priv->drm.pdev;
 	struct intel_gvt_mmio_info *e;
+	struct gvt_mmio_block *block = gvt->mmio.mmio_block;
+	int num = gvt->mmio.num_mmio_block;
 	struct gvt_firmware_header *h;
 	void *firmware;
 	void *p;
 	unsigned long size, crc32_start;
-	int i;
+	int i, j;
 	int ret;
 
 	size = sizeof(*h) + info->mmio_size + info->cfg_space_size;
@@ -105,6 +107,13 @@ static int expose_firmware_sysfs(struct intel_gvt *gvt)
 	hash_for_each(gvt->mmio.mmio_info_table, i, e, node)
 		*(u32 *)(p + e->offset) = I915_READ_NOTRACE(_MMIO(e->offset));
 
+	for (i = 0; i < num; i++, block++) {
+		for (j = 0; j < block->size; j += 4)
+			*(u32 *)(p + INTEL_GVT_MMIO_OFFSET(block->offset) + j) =
+				I915_READ_NOTRACE(_MMIO(INTEL_GVT_MMIO_OFFSET(
+							block->offset) + j));
+	}
+
 	memcpy(gvt->firmware.mmio, p, info->mmio_size);
 
 	crc32_start = offsetof(struct gvt_firmware_header, crc32) + 4;
diff --git a/drivers/gpu/drm/i915/gvt/gtt.c b/drivers/gpu/drm/i915/gvt/gtt.c
index 66374dba3b1a..6166e34d892b 100644
--- a/drivers/gpu/drm/i915/gvt/gtt.c
+++ b/drivers/gpu/drm/i915/gvt/gtt.c
@@ -2259,6 +2259,8 @@ int intel_gvt_init_gtt(struct intel_gvt *gvt)
 		ret = setup_spt_oos(gvt);
 		if (ret) {
 			gvt_err("fail to initialize SPT oos\n");
+			dma_unmap_page(dev, daddr, 4096, PCI_DMA_BIDIRECTIONAL);
+			__free_page(gvt->gtt.scratch_ggtt_page);
 			return ret;
 		}
 	}
diff --git a/drivers/gpu/drm/i915/gvt/gvt.h b/drivers/gpu/drm/i915/gvt/gvt.h
index 3a74e79eac2f..2964a4d01a66 100644
--- a/drivers/gpu/drm/i915/gvt/gvt.h
+++ b/drivers/gpu/drm/i915/gvt/gvt.h
@@ -149,7 +149,7 @@ struct intel_vgpu {
 	bool active;
 	bool pv_notified;
 	bool failsafe;
-	bool resetting;
+	unsigned int resetting_eng;
 	void *sched_data;
 	struct vgpu_sched_ctl sched_ctl;
 
@@ -195,6 +195,15 @@ struct intel_gvt_fence {
 	unsigned long vgpu_allocated_fence_num;
 };
 
+/* Special MMIO blocks. */
+struct gvt_mmio_block {
+	unsigned int device;
+	i915_reg_t   offset;
+	unsigned int size;
+	gvt_mmio_func read;
+	gvt_mmio_func write;
+};
+
 #define INTEL_GVT_MMIO_HASH_BITS 11
 
 struct intel_gvt_mmio {
@@ -214,6 +223,9 @@ struct intel_gvt_mmio {
 /* This reg could be accessed by unaligned address */
 #define F_UNALIGN	(1 << 6)
 
+	struct gvt_mmio_block *mmio_block;
+	unsigned int num_mmio_block;
+
 	DECLARE_HASHTABLE(mmio_info_table, INTEL_GVT_MMIO_HASH_BITS);
 	unsigned int num_tracked_mmio;
 };
diff --git a/drivers/gpu/drm/i915/gvt/handlers.c b/drivers/gpu/drm/i915/gvt/handlers.c
index 1414d7e6148d..feed9921b3b3 100644
--- a/drivers/gpu/drm/i915/gvt/handlers.c
+++ b/drivers/gpu/drm/i915/gvt/handlers.c
@@ -367,21 +367,24 @@ static int lcpll_ctl_mmio_write(struct intel_vgpu *vgpu, unsigned int offset,
 static int dpy_reg_mmio_read(struct intel_vgpu *vgpu, unsigned int offset,
 		void *p_data, unsigned int bytes)
 {
-	*(u32 *)p_data = (1 << 17);
-	return 0;
-}
-
-static int dpy_reg_mmio_read_2(struct intel_vgpu *vgpu, unsigned int offset,
-		void *p_data, unsigned int bytes)
-{
-	*(u32 *)p_data = 3;
-	return 0;
-}
+	switch (offset) {
+	case 0xe651c:
+	case 0xe661c:
+	case 0xe671c:
+	case 0xe681c:
+		vgpu_vreg(vgpu, offset) = 1 << 17;
+		break;
+	case 0xe6c04:
+		vgpu_vreg(vgpu, offset) = 0x3;
+		break;
+	case 0xe6e1c:
+		vgpu_vreg(vgpu, offset) = 0x2f << 16;
+		break;
+	default:
+		return -EINVAL;
+	}
 
-static int dpy_reg_mmio_read_3(struct intel_vgpu *vgpu, unsigned int offset,
-		void *p_data, unsigned int bytes)
-{
-	*(u32 *)p_data = (0x2f << 16);
+	read_vreg(vgpu, offset, p_data, bytes);
 	return 0;
 }
 
@@ -1925,7 +1928,7 @@ static int init_generic_mmio_info(struct intel_gvt *gvt)
 	MMIO_F(_PCH_DPD_AUX_CH_CTL, 6 * 4, 0, 0, 0, D_PRE_SKL, NULL,
 		dp_aux_ch_ctl_mmio_write);
 
-	MMIO_RO(PCH_ADPA, D_ALL, 0, ADPA_CRT_HOTPLUG_MONITOR_MASK, NULL, pch_adpa_mmio_write);
+	MMIO_DH(PCH_ADPA, D_PRE_SKL, NULL, pch_adpa_mmio_write);
 
 	MMIO_DH(_PCH_TRANSACONF, D_ALL, NULL, transconf_mmio_write);
 	MMIO_DH(_PCH_TRANSBCONF, D_ALL, NULL, transconf_mmio_write);
@@ -2011,8 +2014,8 @@ static int init_generic_mmio_info(struct intel_gvt *gvt)
 	MMIO_DH(0xe661c, D_ALL, dpy_reg_mmio_read, NULL);
 	MMIO_DH(0xe671c, D_ALL, dpy_reg_mmio_read, NULL);
 	MMIO_DH(0xe681c, D_ALL, dpy_reg_mmio_read, NULL);
-	MMIO_DH(0xe6c04, D_ALL, dpy_reg_mmio_read_2, NULL);
-	MMIO_DH(0xe6e1c, D_ALL, dpy_reg_mmio_read_3, NULL);
+	MMIO_DH(0xe6c04, D_ALL, dpy_reg_mmio_read, NULL);
+	MMIO_DH(0xe6e1c, D_ALL, dpy_reg_mmio_read, NULL);
 
 	MMIO_RO(PCH_PORT_HOTPLUG, D_ALL, 0,
 		PORTA_HOTPLUG_STATUS_MASK
@@ -2854,31 +2857,15 @@ static int init_skl_mmio_info(struct intel_gvt *gvt)
 	return 0;
 }
 
-/* Special MMIO blocks. */
-static struct gvt_mmio_block {
-	unsigned int device;
-	i915_reg_t   offset;
-	unsigned int size;
-	gvt_mmio_func read;
-	gvt_mmio_func write;
-} gvt_mmio_blocks[] = {
-	{D_SKL_PLUS, _MMIO(CSR_MMIO_START_RANGE), 0x3000, NULL, NULL},
-	{D_ALL, _MMIO(MCHBAR_MIRROR_BASE_SNB), 0x40000, NULL, NULL},
-	{D_ALL, _MMIO(VGT_PVINFO_PAGE), VGT_PVINFO_SIZE,
-		pvinfo_mmio_read, pvinfo_mmio_write},
-	{D_ALL, LGC_PALETTE(PIPE_A, 0), 1024, NULL, NULL},
-	{D_ALL, LGC_PALETTE(PIPE_B, 0), 1024, NULL, NULL},
-	{D_ALL, LGC_PALETTE(PIPE_C, 0), 1024, NULL, NULL},
-};
-
 static struct gvt_mmio_block *find_mmio_block(struct intel_gvt *gvt,
 					      unsigned int offset)
 {
 	unsigned long device = intel_gvt_get_device_type(gvt);
-	struct gvt_mmio_block *block = gvt_mmio_blocks;
+	struct gvt_mmio_block *block = gvt->mmio.mmio_block;
+	int num = gvt->mmio.num_mmio_block;
 	int i;
 
-	for (i = 0; i < ARRAY_SIZE(gvt_mmio_blocks); i++, block++) {
+	for (i = 0; i < num; i++, block++) {
 		if (!(device & block->device))
 			continue;
 		if (offset >= INTEL_GVT_MMIO_OFFSET(block->offset) &&
@@ -2909,6 +2896,17 @@ void intel_gvt_clean_mmio_info(struct intel_gvt *gvt)
 	gvt->mmio.mmio_attribute = NULL;
 }
 
+/* Special MMIO blocks. */
+static struct gvt_mmio_block mmio_blocks[] = {
+	{D_SKL_PLUS, _MMIO(CSR_MMIO_START_RANGE), 0x3000, NULL, NULL},
+	{D_ALL, _MMIO(MCHBAR_MIRROR_BASE_SNB), 0x40000, NULL, NULL},
+	{D_ALL, _MMIO(VGT_PVINFO_PAGE), VGT_PVINFO_SIZE,
+		pvinfo_mmio_read, pvinfo_mmio_write},
+	{D_ALL, LGC_PALETTE(PIPE_A, 0), 1024, NULL, NULL},
+	{D_ALL, LGC_PALETTE(PIPE_B, 0), 1024, NULL, NULL},
+	{D_ALL, LGC_PALETTE(PIPE_C, 0), 1024, NULL, NULL},
+};
+
 /**
  * intel_gvt_setup_mmio_info - setup MMIO information table for GVT device
  * @gvt: GVT device
@@ -2948,6 +2946,9 @@ int intel_gvt_setup_mmio_info(struct intel_gvt *gvt)
 			goto err;
 	}
 
+	gvt->mmio.mmio_block = mmio_blocks;
+	gvt->mmio.num_mmio_block = ARRAY_SIZE(mmio_blocks);
+
 	gvt_dbg_mmio("traced %u virtual mmio registers\n",
 		     gvt->mmio.num_tracked_mmio);
 	return 0;
@@ -3027,7 +3028,7 @@ int intel_vgpu_mmio_reg_rw(struct intel_vgpu *vgpu, unsigned int offset,
 	gvt_mmio_func func;
 	int ret;
 
-	if (WARN_ON(bytes > 4))
+	if (WARN_ON(bytes > 8))
 		return -EINVAL;
 
 	/*
diff --git a/drivers/gpu/drm/i915/gvt/kvmgt.c b/drivers/gpu/drm/i915/gvt/kvmgt.c
index 1ae0b4083ce1..fd0c85f9ef3c 100644
--- a/drivers/gpu/drm/i915/gvt/kvmgt.c
+++ b/drivers/gpu/drm/i915/gvt/kvmgt.c
@@ -232,16 +232,20 @@ static void gvt_cache_destroy(struct intel_vgpu *vgpu)
 	struct device *dev = mdev_dev(vgpu->vdev.mdev);
 	unsigned long gfn;
 
-	mutex_lock(&vgpu->vdev.cache_lock);
-	while ((node = rb_first(&vgpu->vdev.cache))) {
+	for (;;) {
+		mutex_lock(&vgpu->vdev.cache_lock);
+		node = rb_first(&vgpu->vdev.cache);
+		if (!node) {
+			mutex_unlock(&vgpu->vdev.cache_lock);
+			break;
+		}
 		dma = rb_entry(node, struct gvt_dma, node);
 		gvt_dma_unmap_iova(vgpu, dma->iova);
 		gfn = dma->gfn;
-
-		vfio_unpin_pages(dev, &gfn, 1);
 		__gvt_cache_remove_entry(vgpu, dma);
+		mutex_unlock(&vgpu->vdev.cache_lock);
+		vfio_unpin_pages(dev, &gfn, 1);
 	}
-	mutex_unlock(&vgpu->vdev.cache_lock);
 }
 
 static struct intel_vgpu_type *intel_gvt_find_vgpu_type(struct intel_gvt *gvt,
diff --git a/drivers/gpu/drm/i915/gvt/scheduler.c b/drivers/gpu/drm/i915/gvt/scheduler.c
index 488fdea348a9..22e08eb2d0b7 100644
--- a/drivers/gpu/drm/i915/gvt/scheduler.c
+++ b/drivers/gpu/drm/i915/gvt/scheduler.c
@@ -174,15 +174,6 @@ static int shadow_context_status_change(struct notifier_block *nb,
 		atomic_set(&workload->shadow_ctx_active, 1);
 		break;
 	case INTEL_CONTEXT_SCHEDULE_OUT:
-		/* If the status is -EINPROGRESS means this workload
-		 * doesn't meet any issue during dispatching so when
-		 * get the SCHEDULE_OUT set the status to be zero for
-		 * good. If the status is NOT -EINPROGRESS means there
-		 * is something wrong happened during dispatching and
-		 * the status should not be set to zero
-		 */
-		if (workload->status == -EINPROGRESS)
-			workload->status = 0;
 		atomic_set(&workload->shadow_ctx_active, 0);
 		break;
 	default:
@@ -427,9 +418,22 @@ static void complete_current_workload(struct intel_gvt *gvt, int ring_id)
 		wait_event(workload->shadow_ctx_status_wq,
 			   !atomic_read(&workload->shadow_ctx_active));
 
+		/* If this request caused GPU hang, req->fence.error will
+		 * be set to -EIO. Use -EIO to set workload status so
+		 * that when this request caused GPU hang, didn't trigger
+		 * context switch interrupt to guest.
+		 */
+		if (likely(workload->status == -EINPROGRESS)) {
+			if (workload->req->fence.error == -EIO)
+				workload->status = -EIO;
+			else
+				workload->status = 0;
+		}
+
 		i915_gem_request_put(fetch_and_zero(&workload->req));
 
-		if (!workload->status && !vgpu->resetting) {
+		if (!workload->status && !(vgpu->resetting_eng &
+					   ENGINE_MASK(ring_id))) {
 			update_guest_context(workload);
 
 			for_each_set_bit(event, workload->pending_events,
@@ -464,8 +468,6 @@ struct workload_thread_param {
 	int ring_id;
 };
 
-static DEFINE_MUTEX(scheduler_mutex);
-
 static int workload_thread(void *priv)
 {
 	struct workload_thread_param *p = (struct workload_thread_param *)priv;
@@ -497,8 +499,6 @@ static int workload_thread(void *priv)
 		if (!workload)
 			break;
 
-		mutex_lock(&scheduler_mutex);
-
 		gvt_dbg_sched("ring id %d next workload %p vgpu %d\n",
 				workload->ring_id, workload,
 				workload->vgpu->id);
@@ -537,9 +537,6 @@ complete:
 					FORCEWAKE_ALL);
 
 		intel_runtime_pm_put(gvt->dev_priv);
-
-		mutex_unlock(&scheduler_mutex);
-
 	}
 	return 0;
 }
diff --git a/drivers/gpu/drm/i915/gvt/vgpu.c b/drivers/gpu/drm/i915/gvt/vgpu.c
index 90c14e6e3ea0..3deadcbd5a24 100644
--- a/drivers/gpu/drm/i915/gvt/vgpu.c
+++ b/drivers/gpu/drm/i915/gvt/vgpu.c
@@ -480,11 +480,13 @@ void intel_gvt_reset_vgpu_locked(struct intel_vgpu *vgpu, bool dmlr,
 {
 	struct intel_gvt *gvt = vgpu->gvt;
 	struct intel_gvt_workload_scheduler *scheduler = &gvt->scheduler;
+	unsigned int resetting_eng = dmlr ? ALL_ENGINES : engine_mask;
 
 	gvt_dbg_core("------------------------------------------\n");
 	gvt_dbg_core("resseting vgpu%d, dmlr %d, engine_mask %08x\n",
 		     vgpu->id, dmlr, engine_mask);
-	vgpu->resetting = true;
+
+	vgpu->resetting_eng = resetting_eng;
 
 	intel_vgpu_stop_schedule(vgpu);
 	/*
@@ -497,7 +499,7 @@ void intel_gvt_reset_vgpu_locked(struct intel_vgpu *vgpu, bool dmlr,
 		mutex_lock(&gvt->lock);
 	}
 
-	intel_vgpu_reset_execlist(vgpu, dmlr ? ALL_ENGINES : engine_mask);
+	intel_vgpu_reset_execlist(vgpu, resetting_eng);
 
 	/* full GPU reset or device model level reset */
 	if (engine_mask == ALL_ENGINES || dmlr) {
@@ -520,7 +522,7 @@ void intel_gvt_reset_vgpu_locked(struct intel_vgpu *vgpu, bool dmlr,
 		}
 	}
 
-	vgpu->resetting = false;
+	vgpu->resetting_eng = 0;
 	gvt_dbg_core("reset vgpu%d done\n", vgpu->id);
 	gvt_dbg_core("------------------------------------------\n");
 }
diff --git a/drivers/gpu/drm/i915/i915_debugfs.c b/drivers/gpu/drm/i915/i915_debugfs.c
index 3f44076ec8a0..d1bd53b73738 100644
--- a/drivers/gpu/drm/i915/i915_debugfs.c
+++ b/drivers/gpu/drm/i915/i915_debugfs.c
@@ -3087,7 +3087,7 @@ static void intel_connector_info(struct seq_file *m,
 			   connector->display_info.cea_rev);
 	}
 
-	if (!intel_encoder || intel_encoder->type == INTEL_OUTPUT_DP_MST)
+	if (!intel_encoder)
 		return;
 
 	switch (connector->connector_type) {
@@ -4580,7 +4580,7 @@ static void gen9_sseu_device_status(struct drm_i915_private *dev_priv,
 
 		sseu->slice_mask |= BIT(s);
 
-		if (IS_GEN9_BC(dev_priv))
+		if (IS_GEN9_BC(dev_priv) || IS_CANNONLAKE(dev_priv))
 			sseu->subslice_mask =
 				INTEL_INFO(dev_priv)->sseu.subslice_mask;
 
diff --git a/drivers/gpu/drm/i915/i915_drv.c b/drivers/gpu/drm/i915/i915_drv.c
index ee2325b180e7..fc307e03943c 100644
--- a/drivers/gpu/drm/i915/i915_drv.c
+++ b/drivers/gpu/drm/i915/i915_drv.c
@@ -1132,10 +1132,12 @@ static int i915_driver_init_hw(struct drm_i915_private *dev_priv)
 	 * and the registers being closely associated.
 	 *
 	 * According to chipset errata, on the 965GM, MSI interrupts may
-	 * be lost or delayed, but we use them anyways to avoid
-	 * stuck interrupts on some machines.
+	 * be lost or delayed, and was defeatured. MSI interrupts seem to
+	 * get lost on g4x as well, and interrupt delivery seems to stay
+	 * properly dead afterwards. So we'll just disable them for all
+	 * pre-gen5 chipsets.
 	 */
-	if (!IS_I945G(dev_priv) && !IS_I945GM(dev_priv)) {
+	if (INTEL_GEN(dev_priv) >= 5) {
 		if (pci_enable_msi(pdev) < 0)
 			DRM_DEBUG_DRIVER("can't enable MSI");
 	}
diff --git a/drivers/gpu/drm/i915/i915_gem.c b/drivers/gpu/drm/i915/i915_gem.c
index 7dcac3bfb771..969bac8404f1 100644
--- a/drivers/gpu/drm/i915/i915_gem.c
+++ b/drivers/gpu/drm/i915/i915_gem.c
@@ -2434,8 +2434,9 @@ rebuild_st:
 				 * again with !__GFP_NORETRY. However, we still
 				 * want to fail this allocation rather than
 				 * trigger the out-of-memory killer and for
-				 * this we want the future __GFP_MAYFAIL.
+				 * this we want __GFP_RETRY_MAYFAIL.
 				 */
+				gfp |= __GFP_RETRY_MAYFAIL;
 			}
 		} while (1);
 
diff --git a/drivers/gpu/drm/i915/i915_gem_clflush.c b/drivers/gpu/drm/i915/i915_gem_clflush.c
index 152f16c11878..348b29a845c9 100644
--- a/drivers/gpu/drm/i915/i915_gem_clflush.c
+++ b/drivers/gpu/drm/i915/i915_gem_clflush.c
@@ -114,7 +114,7 @@ i915_clflush_notify(struct i915_sw_fence *fence,
 	return NOTIFY_DONE;
 }
 
-void i915_gem_clflush_object(struct drm_i915_gem_object *obj,
+bool i915_gem_clflush_object(struct drm_i915_gem_object *obj,
 			     unsigned int flags)
 {
 	struct clflush *clflush;
@@ -128,7 +128,7 @@ void i915_gem_clflush_object(struct drm_i915_gem_object *obj,
 	 */
 	if (!i915_gem_object_has_struct_page(obj)) {
 		obj->cache_dirty = false;
-		return;
+		return false;
 	}
 
 	/* If the GPU is snooping the contents of the CPU cache,
@@ -140,7 +140,7 @@ void i915_gem_clflush_object(struct drm_i915_gem_object *obj,
 	 * tracking.
 	 */
 	if (!(flags & I915_CLFLUSH_FORCE) && obj->cache_coherent)
-		return;
+		return false;
 
 	trace_i915_gem_object_clflush(obj);
 
@@ -179,4 +179,5 @@ void i915_gem_clflush_object(struct drm_i915_gem_object *obj,
 	}
 
 	obj->cache_dirty = false;
+	return true;
 }
diff --git a/drivers/gpu/drm/i915/i915_gem_clflush.h b/drivers/gpu/drm/i915/i915_gem_clflush.h
index 2455a7820937..f390247561b3 100644
--- a/drivers/gpu/drm/i915/i915_gem_clflush.h
+++ b/drivers/gpu/drm/i915/i915_gem_clflush.h
@@ -28,7 +28,7 @@
 struct drm_i915_private;
 struct drm_i915_gem_object;
 
-void i915_gem_clflush_object(struct drm_i915_gem_object *obj,
+bool i915_gem_clflush_object(struct drm_i915_gem_object *obj,
 			     unsigned int flags);
 #define I915_CLFLUSH_FORCE BIT(0)
 #define I915_CLFLUSH_SYNC BIT(1)
diff --git a/drivers/gpu/drm/i915/i915_gem_context.c b/drivers/gpu/drm/i915/i915_gem_context.c
index 39ed58a21fc1..e1e971ee2ed5 100644
--- a/drivers/gpu/drm/i915/i915_gem_context.c
+++ b/drivers/gpu/drm/i915/i915_gem_context.c
@@ -688,19 +688,19 @@ static inline bool skip_rcs_switch(struct i915_hw_ppgtt *ppgtt,
 }
 
 static bool
-needs_pd_load_pre(struct i915_hw_ppgtt *ppgtt,
-		  struct intel_engine_cs *engine,
-		  struct i915_gem_context *to)
+needs_pd_load_pre(struct i915_hw_ppgtt *ppgtt, struct intel_engine_cs *engine)
 {
+	struct i915_gem_context *from = engine->legacy_active_context;
+
 	if (!ppgtt)
 		return false;
 
 	/* Always load the ppgtt on first use */
-	if (!engine->legacy_active_context)
+	if (!from)
 		return true;
 
 	/* Same context without new entries, skip */
-	if (engine->legacy_active_context == to &&
+	if ((!from->ppgtt || from->ppgtt == ppgtt) &&
 	    !(intel_engine_flag(engine) & ppgtt->pd_dirty_rings))
 		return false;
 
@@ -744,7 +744,7 @@ static int do_rcs_switch(struct drm_i915_gem_request *req)
 	if (skip_rcs_switch(ppgtt, engine, to))
 		return 0;
 
-	if (needs_pd_load_pre(ppgtt, engine, to)) {
+	if (needs_pd_load_pre(ppgtt, engine)) {
 		/* Older GENs and non render rings still want the load first,
 		 * "PP_DCLV followed by PP_DIR_BASE register through Load
 		 * Register Immediate commands in Ring Buffer before submitting
@@ -841,7 +841,7 @@ int i915_switch_context(struct drm_i915_gem_request *req)
 		struct i915_hw_ppgtt *ppgtt =
 			to->ppgtt ?: req->i915->mm.aliasing_ppgtt;
 
-		if (needs_pd_load_pre(ppgtt, engine, to)) {
+		if (needs_pd_load_pre(ppgtt, engine)) {
 			int ret;
 
 			trace_switch_mm(engine, to);
@@ -852,6 +852,7 @@ int i915_switch_context(struct drm_i915_gem_request *req)
 			ppgtt->pd_dirty_rings &= ~intel_engine_flag(engine);
 		}
 
+		engine->legacy_active_context = to;
 		return 0;
 	}
 
diff --git a/drivers/gpu/drm/i915/i915_gem_execbuffer.c b/drivers/gpu/drm/i915/i915_gem_execbuffer.c
index 9337446f1068..e9503f6d1100 100644
--- a/drivers/gpu/drm/i915/i915_gem_execbuffer.c
+++ b/drivers/gpu/drm/i915/i915_gem_execbuffer.c
@@ -288,20 +288,26 @@ static int eb_create(struct i915_execbuffer *eb)
 		 * direct lookup.
 		 */
 		do {
+			unsigned int flags;
+
+			/* While we can still reduce the allocation size, don't
+			 * raise a warning and allow the allocation to fail.
+			 * On the last pass though, we want to try as hard
+			 * as possible to perform the allocation and warn
+			 * if it fails.
+			 */
+			flags = GFP_TEMPORARY;
+			if (size > 1)
+				flags |= __GFP_NORETRY | __GFP_NOWARN;
+
 			eb->buckets = kzalloc(sizeof(struct hlist_head) << size,
-					      GFP_TEMPORARY |
-					      __GFP_NORETRY |
-					      __GFP_NOWARN);
+					      flags);
 			if (eb->buckets)
 				break;
 		} while (--size);
 
-		if (unlikely(!eb->buckets)) {
-			eb->buckets = kzalloc(sizeof(struct hlist_head),
-					      GFP_TEMPORARY);
-			if (unlikely(!eb->buckets))
-				return -ENOMEM;
-		}
+		if (unlikely(!size))
+			return -ENOMEM;
 
 		eb->lut_size = size;
 	} else {
@@ -452,7 +458,7 @@ eb_add_vma(struct i915_execbuffer *eb,
 			return err;
 	}
 
-	if (eb->lut_size >= 0) {
+	if (eb->lut_size > 0) {
 		vma->exec_handle = entry->handle;
 		hlist_add_head(&vma->exec_node,
 			       &eb->buckets[hash_32(entry->handle,
@@ -554,9 +560,6 @@ static int eb_reserve_vma(const struct i915_execbuffer *eb,
 		eb->args->flags |= __EXEC_HAS_RELOC;
 	}
 
-	entry->flags |= __EXEC_OBJECT_HAS_PIN;
-	GEM_BUG_ON(eb_vma_misplaced(entry, vma));
-
 	if (unlikely(entry->flags & EXEC_OBJECT_NEEDS_FENCE)) {
 		err = i915_vma_get_fence(vma);
 		if (unlikely(err)) {
@@ -568,6 +571,9 @@ static int eb_reserve_vma(const struct i915_execbuffer *eb,
 			entry->flags |= __EXEC_OBJECT_HAS_FENCE;
 	}
 
+	entry->flags |= __EXEC_OBJECT_HAS_PIN;
+	GEM_BUG_ON(eb_vma_misplaced(entry, vma));
+
 	return 0;
 }
 
@@ -894,7 +900,7 @@ static void eb_release_vmas(const struct i915_execbuffer *eb)
 static void eb_reset_vmas(const struct i915_execbuffer *eb)
 {
 	eb_release_vmas(eb);
-	if (eb->lut_size >= 0)
+	if (eb->lut_size > 0)
 		memset(eb->buckets, 0,
 		       sizeof(struct hlist_head) << eb->lut_size);
 }
@@ -903,7 +909,7 @@ static void eb_destroy(const struct i915_execbuffer *eb)
 {
 	GEM_BUG_ON(eb->reloc_cache.rq);
 
-	if (eb->lut_size >= 0)
+	if (eb->lut_size > 0)
 		kfree(eb->buckets);
 }
 
@@ -1452,7 +1458,7 @@ static int eb_relocate_vma(struct i915_execbuffer *eb, struct i915_vma *vma)
 	 * to read. However, if the array is not writable the user loses
 	 * the updated relocation values.
 	 */
-	if (unlikely(!access_ok(VERIFY_READ, urelocs, remain*sizeof(urelocs))))
+	if (unlikely(!access_ok(VERIFY_READ, urelocs, remain*sizeof(*urelocs))))
 		return -EFAULT;
 
 	do {
@@ -1769,7 +1775,7 @@ out:
 		}
 	}
 
-	return err ?: have_copy;
+	return err;
 }
 
 static int eb_relocate(struct i915_execbuffer *eb)
@@ -1819,7 +1825,7 @@ static int eb_move_to_gpu(struct i915_execbuffer *eb)
 	int err;
 
 	for (i = 0; i < count; i++) {
-		const struct drm_i915_gem_exec_object2 *entry = &eb->exec[i];
+		struct drm_i915_gem_exec_object2 *entry = &eb->exec[i];
 		struct i915_vma *vma = exec_to_vma(entry);
 		struct drm_i915_gem_object *obj = vma->obj;
 
@@ -1835,12 +1841,14 @@ static int eb_move_to_gpu(struct i915_execbuffer *eb)
 			eb->request->capture_list = capture;
 		}
 
+		if (unlikely(obj->cache_dirty && !obj->cache_coherent)) {
+			if (i915_gem_clflush_object(obj, 0))
+				entry->flags &= ~EXEC_OBJECT_ASYNC;
+		}
+
 		if (entry->flags & EXEC_OBJECT_ASYNC)
 			goto skip_flushes;
 
-		if (unlikely(obj->cache_dirty && !obj->cache_coherent))
-			i915_gem_clflush_object(obj, 0);
-
 		err = i915_gem_request_await_object
 			(eb->request, obj, entry->flags & EXEC_OBJECT_WRITE);
 		if (err)
@@ -2180,8 +2188,11 @@ i915_gem_do_execbuffer(struct drm_device *dev,
 		}
 	}
 
-	if (eb_create(&eb))
-		return -ENOMEM;
+	err = eb_create(&eb);
+	if (err)
+		goto err_out_fence;
+
+	GEM_BUG_ON(!eb.lut_size);
 
 	/*
 	 * Take a local wakeref for preparing to dispatch the execbuf as
@@ -2200,7 +2211,7 @@ i915_gem_do_execbuffer(struct drm_device *dev,
 		goto err_unlock;
 
 	err = eb_relocate(&eb);
-	if (err)
+	if (err) {
 		/*
 		 * If the user expects the execobject.offset and
 		 * reloc.presumed_offset to be an exact match,
@@ -2209,8 +2220,8 @@ i915_gem_do_execbuffer(struct drm_device *dev,
 		 * relocation.
 		 */
 		args->flags &= ~__EXEC_HAS_RELOC;
-	if (err < 0)
 		goto err_vma;
+	}
 
 	if (unlikely(eb.batch->exec_entry->flags & EXEC_OBJECT_WRITE)) {
 		DRM_DEBUG("Attempting to use self-modifying batch buffer\n");
@@ -2340,6 +2351,7 @@ err_unlock:
 err_rpm:
 	intel_runtime_pm_put(eb.i915);
 	eb_destroy(&eb);
+err_out_fence:
 	if (out_fence_fd != -1)
 		put_unused_fd(out_fence_fd);
 err_in_fence:
diff --git a/drivers/gpu/drm/i915/i915_gem_render_state.c b/drivers/gpu/drm/i915/i915_gem_render_state.c
index 7032c542a9b1..4dd4c2159a92 100644
--- a/drivers/gpu/drm/i915/i915_gem_render_state.c
+++ b/drivers/gpu/drm/i915/i915_gem_render_state.c
@@ -242,6 +242,10 @@ int i915_gem_render_state_emit(struct drm_i915_gem_request *req)
 			goto err_unpin;
 	}
 
+	ret = req->engine->emit_flush(req, EMIT_INVALIDATE);
+	if (ret)
+		goto err_unpin;
+
 	ret = req->engine->emit_bb_start(req,
 					 so->batch_offset, so->batch_size,
 					 I915_DISPATCH_SECURE);
diff --git a/drivers/gpu/drm/i915/i915_gem_shrinker.c b/drivers/gpu/drm/i915/i915_gem_shrinker.c
index 1032f98add11..77fb39808131 100644
--- a/drivers/gpu/drm/i915/i915_gem_shrinker.c
+++ b/drivers/gpu/drm/i915/i915_gem_shrinker.c
@@ -43,16 +43,21 @@ static bool shrinker_lock(struct drm_i915_private *dev_priv, bool *unlock)
 		return true;
 
 	case MUTEX_TRYLOCK_FAILED:
+		*unlock = false;
+		preempt_disable();
 		do {
 			cpu_relax();
 			if (mutex_trylock(&dev_priv->drm.struct_mutex)) {
-	case MUTEX_TRYLOCK_SUCCESS:
 				*unlock = true;
-				return true;
+				break;
 			}
 		} while (!need_resched());
+		preempt_enable();
+		return *unlock;
 
-		return false;
+	case MUTEX_TRYLOCK_SUCCESS:
+		*unlock = true;
+		return true;
 	}
 
 	BUG();
diff --git a/drivers/gpu/drm/i915/i915_perf.c b/drivers/gpu/drm/i915/i915_perf.c
index 38c44407bafc..f33d90226704 100644
--- a/drivers/gpu/drm/i915/i915_perf.c
+++ b/drivers/gpu/drm/i915/i915_perf.c
@@ -1601,11 +1601,11 @@ static int gen8_emit_oa_config(struct drm_i915_gem_request *req)
 	u32 *cs;
 	int i;
 
-	cs = intel_ring_begin(req, n_flex_regs * 2 + 4);
+	cs = intel_ring_begin(req, ARRAY_SIZE(flex_mmio) * 2 + 4);
 	if (IS_ERR(cs))
 		return PTR_ERR(cs);
 
-	*cs++ = MI_LOAD_REGISTER_IMM(n_flex_regs + 1);
+	*cs++ = MI_LOAD_REGISTER_IMM(ARRAY_SIZE(flex_mmio) + 1);
 
 	*cs++ = i915_mmio_reg_offset(GEN8_OACTXCONTROL);
 	*cs++ = (dev_priv->perf.oa.period_exponent << GEN8_OA_TIMER_PERIOD_SHIFT) |
@@ -2067,10 +2067,6 @@ static int i915_oa_stream_init(struct i915_perf_stream *stream,
 			return ret;
 	}
 
-	ret = alloc_oa_buffer(dev_priv);
-	if (ret)
-		goto err_oa_buf_alloc;
-
 	/* PRM - observability performance counters:
 	 *
 	 *   OACONTROL, performance counter enable, note:
@@ -2086,6 +2082,10 @@ static int i915_oa_stream_init(struct i915_perf_stream *stream,
 	intel_runtime_pm_get(dev_priv);
 	intel_uncore_forcewake_get(dev_priv, FORCEWAKE_ALL);
 
+	ret = alloc_oa_buffer(dev_priv);
+	if (ret)
+		goto err_oa_buf_alloc;
+
 	ret = dev_priv->perf.oa.ops.enable_metric_set(dev_priv);
 	if (ret)
 		goto err_enable;
@@ -2097,11 +2097,11 @@ static int i915_oa_stream_init(struct i915_perf_stream *stream,
 	return 0;
 
 err_enable:
-	intel_uncore_forcewake_put(dev_priv, FORCEWAKE_ALL);
-	intel_runtime_pm_put(dev_priv);
 	free_oa_buffer(dev_priv);
 
 err_oa_buf_alloc:
+	intel_uncore_forcewake_put(dev_priv, FORCEWAKE_ALL);
+	intel_runtime_pm_put(dev_priv);
 	if (stream->ctx)
 		oa_put_render_ctx_id(stream);
 
diff --git a/drivers/gpu/drm/i915/i915_reg.h b/drivers/gpu/drm/i915/i915_reg.h
index c8647cfa81ba..64cc674b652a 100644
--- a/drivers/gpu/drm/i915/i915_reg.h
+++ b/drivers/gpu/drm/i915/i915_reg.h
@@ -1802,7 +1802,7 @@ enum skl_disp_power_wells {
 #define   POST_CURSOR_2(x)		((x) << 6)
 #define   POST_CURSOR_2_MASK		(0x3F << 6)
 #define   CURSOR_COEFF(x)		((x) << 0)
-#define   CURSOR_COEFF_MASK		(0x3F << 6)
+#define   CURSOR_COEFF_MASK		(0x3F << 0)
 
 #define _CNL_PORT_TX_DW5_GRP_AE		0x162354
 #define _CNL_PORT_TX_DW5_GRP_B		0x1623D4
diff --git a/drivers/gpu/drm/i915/i915_vma.h b/drivers/gpu/drm/i915/i915_vma.h
index 4a673fc1a432..20cf272c97b1 100644
--- a/drivers/gpu/drm/i915/i915_vma.h
+++ b/drivers/gpu/drm/i915/i915_vma.h
@@ -284,12 +284,12 @@ static inline void __i915_vma_pin(struct i915_vma *vma)
 
 static inline void __i915_vma_unpin(struct i915_vma *vma)
 {
-	GEM_BUG_ON(!i915_vma_is_pinned(vma));
 	vma->flags--;
 }
 
 static inline void i915_vma_unpin(struct i915_vma *vma)
 {
+	GEM_BUG_ON(!i915_vma_is_pinned(vma));
 	GEM_BUG_ON(!drm_mm_node_allocated(&vma->node));
 	__i915_vma_unpin(vma);
 }
diff --git a/drivers/gpu/drm/i915/intel_cdclk.c b/drivers/gpu/drm/i915/intel_cdclk.c
index b8914db7d2e1..1241e5891b29 100644
--- a/drivers/gpu/drm/i915/intel_cdclk.c
+++ b/drivers/gpu/drm/i915/intel_cdclk.c
@@ -491,6 +491,14 @@ static void vlv_set_cdclk(struct drm_i915_private *dev_priv,
 	int cdclk = cdclk_state->cdclk;
 	u32 val, cmd;
 
+	/* There are cases where we can end up here with power domains
+	 * off and a CDCLK frequency other than the minimum, like when
+	 * issuing a modeset without actually changing any display after
+	 * a system suspend.  So grab the PIPE-A domain, which covers
+	 * the HW blocks needed for the following programming.
+	 */
+	intel_display_power_get(dev_priv, POWER_DOMAIN_PIPE_A);
+
 	if (cdclk >= 320000) /* jump to highest voltage for 400MHz too */
 		cmd = 2;
 	else if (cdclk == 266667)
@@ -549,6 +557,8 @@ static void vlv_set_cdclk(struct drm_i915_private *dev_priv,
 	intel_update_cdclk(dev_priv);
 
 	vlv_program_pfi_credits(dev_priv);
+
+	intel_display_power_put(dev_priv, POWER_DOMAIN_PIPE_A);
 }
 
 static void chv_set_cdclk(struct drm_i915_private *dev_priv,
@@ -568,6 +578,14 @@ static void chv_set_cdclk(struct drm_i915_private *dev_priv,
 		return;
 	}
 
+	/* There are cases where we can end up here with power domains
+	 * off and a CDCLK frequency other than the minimum, like when
+	 * issuing a modeset without actually changing any display after
+	 * a system suspend.  So grab the PIPE-A domain, which covers
+	 * the HW blocks needed for the following programming.
+	 */
+	intel_display_power_get(dev_priv, POWER_DOMAIN_PIPE_A);
+
 	/*
 	 * Specs are full of misinformation, but testing on actual
 	 * hardware has shown that we just need to write the desired
@@ -590,6 +608,8 @@ static void chv_set_cdclk(struct drm_i915_private *dev_priv,
 	intel_update_cdclk(dev_priv);
 
 	vlv_program_pfi_credits(dev_priv);
+
+	intel_display_power_put(dev_priv, POWER_DOMAIN_PIPE_A);
 }
 
 static int bdw_calc_cdclk(int max_pixclk)
diff --git a/drivers/gpu/drm/i915/intel_color.c b/drivers/gpu/drm/i915/intel_color.c
index 306c6b06b330..17c4ae7e4e7c 100644
--- a/drivers/gpu/drm/i915/intel_color.c
+++ b/drivers/gpu/drm/i915/intel_color.c
@@ -398,6 +398,7 @@ static void bdw_load_gamma_lut(struct drm_crtc_state *state, u32 offset)
 		}
 
 		/* Program the max register to clamp values > 1.0. */
+		i = lut_size - 1;
 		I915_WRITE(PREC_PAL_GC_MAX(pipe, 0),
 			   drm_color_lut_extract(lut[i].red, 16));
 		I915_WRITE(PREC_PAL_GC_MAX(pipe, 1),
diff --git a/drivers/gpu/drm/i915/intel_ddi.c b/drivers/gpu/drm/i915/intel_ddi.c
index 80e96f1f49d2..d3b3252a8742 100644
--- a/drivers/gpu/drm/i915/intel_ddi.c
+++ b/drivers/gpu/drm/i915/intel_ddi.c
@@ -1762,7 +1762,7 @@ cnl_get_buf_trans_edp(struct drm_i915_private *dev_priv,
 	if (dev_priv->vbt.edp.low_vswing) {
 		if (voltage == VOLTAGE_INFO_0_85V) {
 			*n_entries = ARRAY_SIZE(cnl_ddi_translations_edp_0_85V);
-			return cnl_ddi_translations_dp_0_85V;
+			return cnl_ddi_translations_edp_0_85V;
 		} else if (voltage == VOLTAGE_INFO_0_95V) {
 			*n_entries = ARRAY_SIZE(cnl_ddi_translations_edp_0_95V);
 			return cnl_ddi_translations_edp_0_95V;
@@ -1896,8 +1896,8 @@ static void cnl_ddi_vswing_sequence(struct intel_encoder *encoder, u32 level)
 		val = I915_READ(CNL_PORT_TX_DW4_LN(port, ln));
 		val &= ~LOADGEN_SELECT;
 
-		if (((rate < 600000) && (width == 4) && (ln >= 1))  ||
-		    ((rate < 600000) && (width < 4) && ((ln == 1) || (ln == 2)))) {
+		if ((rate <= 600000 && width == 4 && ln >= 1)  ||
+		    (rate <= 600000 && width < 4 && (ln == 1 || ln == 2))) {
 			val |= LOADGEN_SELECT;
 		}
 		I915_WRITE(CNL_PORT_TX_DW4_LN(port, ln), val);
diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c
index dec9e58545a1..cc484b56eeaa 100644
--- a/drivers/gpu/drm/i915/intel_display.c
+++ b/drivers/gpu/drm/i915/intel_display.c
@@ -3427,26 +3427,6 @@ static void intel_complete_page_flips(struct drm_i915_private *dev_priv)
 		intel_finish_page_flip_cs(dev_priv, crtc->pipe);
 }
 
-static void intel_update_primary_planes(struct drm_device *dev)
-{
-	struct drm_crtc *crtc;
-
-	for_each_crtc(dev, crtc) {
-		struct intel_plane *plane = to_intel_plane(crtc->primary);
-		struct intel_plane_state *plane_state =
-			to_intel_plane_state(plane->base.state);
-
-		if (plane_state->base.visible) {
-			trace_intel_update_plane(&plane->base,
-						 to_intel_crtc(crtc));
-
-			plane->update_plane(plane,
-					    to_intel_crtc_state(crtc->state),
-					    plane_state);
-		}
-	}
-}
-
 static int
 __intel_display_resume(struct drm_device *dev,
 		       struct drm_atomic_state *state,
@@ -3499,6 +3479,19 @@ void intel_prepare_reset(struct drm_i915_private *dev_priv)
 	struct drm_atomic_state *state;
 	int ret;
 
+
+	/* reset doesn't touch the display */
+	if (!i915.force_reset_modeset_test &&
+	    !gpu_reset_clobbers_display(dev_priv))
+		return;
+
+	/* We have a modeset vs reset deadlock, defensively unbreak it.
+	 *
+	 * FIXME: We can do a _lot_ better, this is just a first iteration.
+	 */
+	i915_gem_set_wedged(dev_priv);
+	DRM_DEBUG_DRIVER("Wedging GPU to avoid deadlocks with pending modeset updates\n");
+
 	/*
 	 * Need mode_config.mutex so that we don't
 	 * trample ongoing ->detect() and whatnot.
@@ -3512,12 +3505,6 @@ void intel_prepare_reset(struct drm_i915_private *dev_priv)
 
 		drm_modeset_backoff(ctx);
 	}
-
-	/* reset doesn't touch the display, but flips might get nuked anyway, */
-	if (!i915.force_reset_modeset_test &&
-	    !gpu_reset_clobbers_display(dev_priv))
-		return;
-
 	/*
 	 * Disabling the crtcs gracefully seems nicer. Also the
 	 * g33 docs say we should at least disable all the planes.
@@ -3547,6 +3534,14 @@ void intel_finish_reset(struct drm_i915_private *dev_priv)
 	struct drm_atomic_state *state = dev_priv->modeset_restore_state;
 	int ret;
 
+	/* reset doesn't touch the display */
+	if (!i915.force_reset_modeset_test &&
+	    !gpu_reset_clobbers_display(dev_priv))
+		return;
+
+	if (!state)
+		goto unlock;
+
 	/*
 	 * Flips in the rings will be nuked by the reset,
 	 * so complete all pending flips so that user space
@@ -3558,22 +3553,10 @@ void intel_finish_reset(struct drm_i915_private *dev_priv)
 
 	/* reset doesn't touch the display */
 	if (!gpu_reset_clobbers_display(dev_priv)) {
-		if (!state) {
-			/*
-			 * Flips in the rings have been nuked by the reset,
-			 * so update the base address of all primary
-			 * planes to the the last fb to make sure we're
-			 * showing the correct fb after a reset.
-			 *
-			 * FIXME: Atomic will make this obsolete since we won't schedule
-			 * CS-based flips (which might get lost in gpu resets) any more.
-			 */
-			intel_update_primary_planes(dev);
-		} else {
-			ret = __intel_display_resume(dev, state, ctx);
+		/* for testing only restore the display */
+		ret = __intel_display_resume(dev, state, ctx);
 			if (ret)
 				DRM_ERROR("Restoring old state failed with %i\n", ret);
-		}
 	} else {
 		/*
 		 * The display has been reset as well,
@@ -3597,8 +3580,8 @@ void intel_finish_reset(struct drm_i915_private *dev_priv)
 		intel_hpd_init(dev_priv);
 	}
 
-	if (state)
-		drm_atomic_state_put(state);
+	drm_atomic_state_put(state);
+unlock:
 	drm_modeset_drop_locks(ctx);
 	drm_modeset_acquire_fini(ctx);
 	mutex_unlock(&dev->mode_config.mutex);
@@ -9117,6 +9100,13 @@ static bool haswell_get_pipe_config(struct intel_crtc *crtc,
 	u64 power_domain_mask;
 	bool active;
 
+	if (INTEL_GEN(dev_priv) >= 9) {
+		intel_crtc_init_scalers(crtc, pipe_config);
+
+		pipe_config->scaler_state.scaler_id = -1;
+		pipe_config->scaler_state.scaler_users &= ~(1 << SKL_CRTC_INDEX);
+	}
+
 	power_domain = POWER_DOMAIN_PIPE(crtc->pipe);
 	if (!intel_display_power_get_if_enabled(dev_priv, power_domain))
 		return false;
@@ -9145,13 +9135,6 @@ static bool haswell_get_pipe_config(struct intel_crtc *crtc,
 	pipe_config->gamma_mode =
 		I915_READ(GAMMA_MODE(crtc->pipe)) & GAMMA_MODE_MODE_MASK;
 
-	if (INTEL_GEN(dev_priv) >= 9) {
-		intel_crtc_init_scalers(crtc, pipe_config);
-
-		pipe_config->scaler_state.scaler_id = -1;
-		pipe_config->scaler_state.scaler_users &= ~(1 << SKL_CRTC_INDEX);
-	}
-
 	power_domain = POWER_DOMAIN_PIPE_PANEL_FITTER(crtc->pipe);
 	if (intel_display_power_get_if_enabled(dev_priv, power_domain)) {
 		power_domain_mask |= BIT_ULL(power_domain);
@@ -9540,7 +9523,16 @@ static void i9xx_update_cursor(struct intel_plane *plane,
 	 * On some platforms writing CURCNTR first will also
 	 * cause CURPOS to be armed by the CURBASE write.
 	 * Without the CURCNTR write the CURPOS write would
-	 * arm itself.
+	 * arm itself. Thus we always start the full update
+	 * with a CURCNTR write.
+	 *
+	 * On other platforms CURPOS always requires the
+	 * CURBASE write to arm the update. Additonally
+	 * a write to any of the cursor register will cancel
+	 * an already armed cursor update. Thus leaving out
+	 * the CURBASE write after CURPOS could lead to a
+	 * cursor that doesn't appear to move, or even change
+	 * shape. Thus we always write CURBASE.
 	 *
 	 * CURCNTR and CUR_FBC_CTL are always
 	 * armed by the CURBASE write only.
@@ -9559,6 +9551,7 @@ static void i9xx_update_cursor(struct intel_plane *plane,
 		plane->cursor.cntl = cntl;
 	} else {
 		I915_WRITE_FW(CURPOS(pipe), pos);
+		I915_WRITE_FW(CURBASE(pipe), base);
 	}
 
 	POSTING_READ_FW(CURBASE(pipe));
diff --git a/drivers/gpu/drm/i915/intel_engine_cs.c b/drivers/gpu/drm/i915/intel_engine_cs.c
index a4487c5b7e37..5b4de719bec3 100644
--- a/drivers/gpu/drm/i915/intel_engine_cs.c
+++ b/drivers/gpu/drm/i915/intel_engine_cs.c
@@ -821,9 +821,10 @@ static int gen9_init_workarounds(struct intel_engine_cs *engine)
 	I915_WRITE(BDW_SCRATCH1, I915_READ(BDW_SCRATCH1) |
 		   GEN9_LBS_SLA_RETRY_TIMER_DECREMENT_ENABLE);
 
-	/* WaDisableKillLogic:bxt,skl,kbl,cfl */
-	I915_WRITE(GAM_ECOCHK, I915_READ(GAM_ECOCHK) |
-		   ECOCHK_DIS_TLB);
+	/* WaDisableKillLogic:bxt,skl,kbl */
+	if (!IS_COFFEELAKE(dev_priv))
+		I915_WRITE(GAM_ECOCHK, I915_READ(GAM_ECOCHK) |
+			   ECOCHK_DIS_TLB);
 
 	/* WaClearFlowControlGpgpuContextSave:skl,bxt,kbl,glk,cfl */
 	/* WaDisablePartialInstShootdown:skl,bxt,kbl,glk,cfl */
@@ -894,10 +895,9 @@ static int gen9_init_workarounds(struct intel_engine_cs *engine)
 	WA_SET_BIT_MASKED(HDC_CHICKEN0,
 			  HDC_FORCE_NON_COHERENT);
 
-	/* WaDisableHDCInvalidation:skl,bxt,kbl */
-	if (!IS_COFFEELAKE(dev_priv))
-		I915_WRITE(GAM_ECOCHK, I915_READ(GAM_ECOCHK) |
-			   BDW_DISABLE_HDC_INVALIDATION);
+	/* WaDisableHDCInvalidation:skl,bxt,kbl,cfl */
+	I915_WRITE(GAM_ECOCHK, I915_READ(GAM_ECOCHK) |
+		   BDW_DISABLE_HDC_INVALIDATION);
 
 	/* WaDisableSamplerPowerBypassForSOPingPong:skl,bxt,kbl,cfl */
 	if (IS_SKYLAKE(dev_priv) ||
diff --git a/drivers/gpu/drm/i915/intel_fbdev.c b/drivers/gpu/drm/i915/intel_fbdev.c
index 03347c6ae599..0c4cde6b2e6f 100644
--- a/drivers/gpu/drm/i915/intel_fbdev.c
+++ b/drivers/gpu/drm/i915/intel_fbdev.c
@@ -535,13 +535,14 @@ static void intel_fbdev_destroy(struct intel_fbdev *ifbdev)
 
 	drm_fb_helper_fini(&ifbdev->helper);
 
-	if (ifbdev->fb) {
+	if (ifbdev->vma) {
 		mutex_lock(&ifbdev->helper.dev->struct_mutex);
 		intel_unpin_fb_vma(ifbdev->vma);
 		mutex_unlock(&ifbdev->helper.dev->struct_mutex);
+	}
 
+	if (ifbdev->fb)
 		drm_framebuffer_remove(&ifbdev->fb->base);
-	}
 
 	kfree(ifbdev);
 }
@@ -765,7 +766,7 @@ void intel_fbdev_set_suspend(struct drm_device *dev, int state, bool synchronous
 	struct intel_fbdev *ifbdev = dev_priv->fbdev;
 	struct fb_info *info;
 
-	if (!ifbdev || !ifbdev->fb)
+	if (!ifbdev || !ifbdev->vma)
 		return;
 
 	info = ifbdev->helper.fbdev;
@@ -812,7 +813,7 @@ void intel_fbdev_output_poll_changed(struct drm_device *dev)
 {
 	struct intel_fbdev *ifbdev = to_i915(dev)->fbdev;
 
-	if (ifbdev && ifbdev->fb)
+	if (ifbdev && ifbdev->vma)
 		drm_fb_helper_hotplug_event(&ifbdev->helper);
 }
 
@@ -824,7 +825,7 @@ void intel_fbdev_restore_mode(struct drm_device *dev)
 		return;
 
 	intel_fbdev_sync(ifbdev);
-	if (!ifbdev->fb)
+	if (!ifbdev->vma)
 		return;
 
 	if (drm_fb_helper_restore_fbdev_mode_unlocked(&ifbdev->helper) == 0)
diff --git a/drivers/gpu/drm/i915/intel_gvt.c b/drivers/gpu/drm/i915/intel_gvt.c
index 52d5b82790d9..c17ed0e62b67 100644
--- a/drivers/gpu/drm/i915/intel_gvt.c
+++ b/drivers/gpu/drm/i915/intel_gvt.c
@@ -45,7 +45,7 @@ static bool is_supported_device(struct drm_i915_private *dev_priv)
 		return true;
 	if (IS_SKYLAKE(dev_priv))
 		return true;
-	if (IS_KABYLAKE(dev_priv) && INTEL_DEVID(dev_priv) == 0x591D)
+	if (IS_KABYLAKE(dev_priv))
 		return true;
 	return false;
 }
diff --git a/drivers/gpu/drm/i915/intel_lrc.h b/drivers/gpu/drm/i915/intel_lrc.h
index 52b3a1fd4059..57ef5833c427 100644
--- a/drivers/gpu/drm/i915/intel_lrc.h
+++ b/drivers/gpu/drm/i915/intel_lrc.h
@@ -63,7 +63,6 @@ enum {
 };
 
 /* Logical Rings */
-void intel_logical_ring_stop(struct intel_engine_cs *engine);
 void intel_logical_ring_cleanup(struct intel_engine_cs *engine);
 int logical_render_ring_init(struct intel_engine_cs *engine);
 int logical_xcs_ring_init(struct intel_engine_cs *engine);
diff --git a/drivers/gpu/drm/i915/intel_panel.c b/drivers/gpu/drm/i915/intel_panel.c
index 96c2cbd81869..593349be8b9d 100644
--- a/drivers/gpu/drm/i915/intel_panel.c
+++ b/drivers/gpu/drm/i915/intel_panel.c
@@ -469,7 +469,7 @@ static u32 intel_panel_compute_brightness(struct intel_connector *connector,
 
 	if (i915.invert_brightness > 0 ||
 	    dev_priv->quirks & QUIRK_INVERT_BRIGHTNESS) {
-		return panel->backlight.max - val;
+		return panel->backlight.max - val + panel->backlight.min;
 	}
 
 	return val;
diff --git a/drivers/gpu/drm/i915/intel_pm.c b/drivers/gpu/drm/i915/intel_pm.c
index 48ea0fca1f72..40b224b44d1b 100644
--- a/drivers/gpu/drm/i915/intel_pm.c
+++ b/drivers/gpu/drm/i915/intel_pm.c
@@ -4463,8 +4463,8 @@ static int skl_compute_plane_wm(const struct drm_i915_private *dev_priv,
 		if ((cpp * cstate->base.adjusted_mode.crtc_htotal / 512 < 1) &&
 		    (plane_bytes_per_line / 512 < 1))
 			selected_result = method2;
-		else if ((ddb_allocation && ddb_allocation /
-			fixed_16_16_to_u32_round_up(plane_blocks_per_line)) >= 1)
+		else if (ddb_allocation >=
+			 fixed_16_16_to_u32_round_up(plane_blocks_per_line))
 			selected_result = min_fixed_16_16(method1, method2);
 		else if (latency >= linetime_us)
 			selected_result = min_fixed_16_16(method1, method2);
diff --git a/drivers/gpu/drm/i915/selftests/i915_gem_dmabuf.c b/drivers/gpu/drm/i915/selftests/i915_gem_dmabuf.c
index d15cc9d3a5cd..89dc25a5a53b 100644
--- a/drivers/gpu/drm/i915/selftests/i915_gem_dmabuf.c
+++ b/drivers/gpu/drm/i915/selftests/i915_gem_dmabuf.c
@@ -246,9 +246,9 @@ static int igt_dmabuf_export_vmap(void *arg)
 	i915_gem_object_put(obj);
 
 	ptr = dma_buf_vmap(dmabuf);
-	if (IS_ERR(ptr)) {
-		err = PTR_ERR(ptr);
-		pr_err("dma_buf_vmap failed with err=%d\n", err);
+	if (!ptr) {
+		pr_err("dma_buf_vmap failed\n");
+		err = -ENOMEM;
 		goto out;
 	}
 
diff --git a/drivers/gpu/drm/i915/selftests/mock_gem_device.c b/drivers/gpu/drm/i915/selftests/mock_gem_device.c
index 627e2aa09766..8cdec455cf7d 100644
--- a/drivers/gpu/drm/i915/selftests/mock_gem_device.c
+++ b/drivers/gpu/drm/i915/selftests/mock_gem_device.c
@@ -206,7 +206,7 @@ struct drm_i915_private *mock_gem_device(void)
 	mkwrite_device_info(i915)->ring_mask = BIT(0);
 	i915->engine[RCS] = mock_engine(i915, "mock");
 	if (!i915->engine[RCS])
-		goto err_dependencies;
+		goto err_priorities;
 
 	i915->kernel_context = mock_context(i915, NULL);
 	if (!i915->kernel_context)
diff --git a/drivers/gpu/drm/imx/ipuv3-plane.c b/drivers/gpu/drm/imx/ipuv3-plane.c
index 49546222c6d3..6276bb834b4f 100644
--- a/drivers/gpu/drm/imx/ipuv3-plane.c
+++ b/drivers/gpu/drm/imx/ipuv3-plane.c
@@ -54,7 +54,7 @@ static const uint32_t ipu_plane_formats[] = {
 	DRM_FORMAT_RGBA8888,
 	DRM_FORMAT_RGBX8888,
 	DRM_FORMAT_BGRA8888,
-	DRM_FORMAT_BGRA8888,
+	DRM_FORMAT_BGRX8888,
 	DRM_FORMAT_UYVY,
 	DRM_FORMAT_VYUY,
 	DRM_FORMAT_YUYV,
diff --git a/drivers/gpu/drm/imx/parallel-display.c b/drivers/gpu/drm/imx/parallel-display.c
index 636031a30e17..8aca20209cb8 100644
--- a/drivers/gpu/drm/imx/parallel-display.c
+++ b/drivers/gpu/drm/imx/parallel-display.c
@@ -237,7 +237,7 @@ static int imx_pd_bind(struct device *dev, struct device *master, void *data)
 
 	/* port@1 is the output port */
 	ret = drm_of_find_panel_or_bridge(np, 1, 0, &imxpd->panel, &imxpd->bridge);
-	if (ret)
+	if (ret && ret != -ENODEV)
 		return ret;
 
 	imxpd->dev = dev;
diff --git a/drivers/gpu/drm/mediatek/Makefile b/drivers/gpu/drm/mediatek/Makefile
index bf2e5be1ab30..e37b55a23a65 100644
--- a/drivers/gpu/drm/mediatek/Makefile
+++ b/drivers/gpu/drm/mediatek/Makefile
@@ -1,4 +1,5 @@
-mediatek-drm-y := mtk_disp_ovl.o \
+mediatek-drm-y := mtk_disp_color.o \
+		  mtk_disp_ovl.o \
 		  mtk_disp_rdma.o \
 		  mtk_drm_crtc.o \
 		  mtk_drm_ddp.o \
diff --git a/drivers/gpu/drm/mediatek/mtk_disp_color.c b/drivers/gpu/drm/mediatek/mtk_disp_color.c
new file mode 100644
index 000000000000..ef79a6d55646
--- /dev/null
+++ b/drivers/gpu/drm/mediatek/mtk_disp_color.c
@@ -0,0 +1,176 @@
+/*
+ * Copyright (c) 2017 MediaTek Inc.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ */
+
+#include <drm/drmP.h>
+#include <linux/clk.h>
+#include <linux/component.h>
+#include <linux/of_device.h>
+#include <linux/of_irq.h>
+#include <linux/platform_device.h>
+
+#include "mtk_drm_crtc.h"
+#include "mtk_drm_ddp_comp.h"
+
+#define DISP_COLOR_CFG_MAIN			0x0400
+#define DISP_COLOR_START_MT2701			0x0f00
+#define DISP_COLOR_START_MT8173			0x0c00
+#define DISP_COLOR_START(comp)			((comp)->data->color_offset)
+#define DISP_COLOR_WIDTH(comp)			(DISP_COLOR_START(comp) + 0x50)
+#define DISP_COLOR_HEIGHT(comp)			(DISP_COLOR_START(comp) + 0x54)
+
+#define COLOR_BYPASS_ALL			BIT(7)
+#define COLOR_SEQ_SEL				BIT(13)
+
+struct mtk_disp_color_data {
+	unsigned int color_offset;
+};
+
+/**
+ * struct mtk_disp_color - DISP_COLOR driver structure
+ * @ddp_comp - structure containing type enum and hardware resources
+ * @crtc - associated crtc to report irq events to
+ */
+struct mtk_disp_color {
+	struct mtk_ddp_comp			ddp_comp;
+	struct drm_crtc				*crtc;
+	const struct mtk_disp_color_data	*data;
+};
+
+static inline struct mtk_disp_color *comp_to_color(struct mtk_ddp_comp *comp)
+{
+	return container_of(comp, struct mtk_disp_color, ddp_comp);
+}
+
+static void mtk_color_config(struct mtk_ddp_comp *comp, unsigned int w,
+			     unsigned int h, unsigned int vrefresh,
+			     unsigned int bpc)
+{
+	struct mtk_disp_color *color = comp_to_color(comp);
+
+	writel(w, comp->regs + DISP_COLOR_WIDTH(color));
+	writel(h, comp->regs + DISP_COLOR_HEIGHT(color));
+}
+
+static void mtk_color_start(struct mtk_ddp_comp *comp)
+{
+	struct mtk_disp_color *color = comp_to_color(comp);
+
+	writel(COLOR_BYPASS_ALL | COLOR_SEQ_SEL,
+	       comp->regs + DISP_COLOR_CFG_MAIN);
+	writel(0x1, comp->regs + DISP_COLOR_START(color));
+}
+
+static const struct mtk_ddp_comp_funcs mtk_disp_color_funcs = {
+	.config = mtk_color_config,
+	.start = mtk_color_start,
+};
+
+static int mtk_disp_color_bind(struct device *dev, struct device *master,
+			       void *data)
+{
+	struct mtk_disp_color *priv = dev_get_drvdata(dev);
+	struct drm_device *drm_dev = data;
+	int ret;
+
+	ret = mtk_ddp_comp_register(drm_dev, &priv->ddp_comp);
+	if (ret < 0) {
+		dev_err(dev, "Failed to register component %s: %d\n",
+			dev->of_node->full_name, ret);
+		return ret;
+	}
+
+	return 0;
+}
+
+static void mtk_disp_color_unbind(struct device *dev, struct device *master,
+				  void *data)
+{
+	struct mtk_disp_color *priv = dev_get_drvdata(dev);
+	struct drm_device *drm_dev = data;
+
+	mtk_ddp_comp_unregister(drm_dev, &priv->ddp_comp);
+}
+
+static const struct component_ops mtk_disp_color_component_ops = {
+	.bind	= mtk_disp_color_bind,
+	.unbind = mtk_disp_color_unbind,
+};
+
+static int mtk_disp_color_probe(struct platform_device *pdev)
+{
+	struct device *dev = &pdev->dev;
+	struct mtk_disp_color *priv;
+	int comp_id;
+	int ret;
+
+	priv = devm_kzalloc(dev, sizeof(*priv), GFP_KERNEL);
+	if (!priv)
+		return -ENOMEM;
+
+	comp_id = mtk_ddp_comp_get_id(dev->of_node, MTK_DISP_COLOR);
+	if (comp_id < 0) {
+		dev_err(dev, "Failed to identify by alias: %d\n", comp_id);
+		return comp_id;
+	}
+
+	ret = mtk_ddp_comp_init(dev, dev->of_node, &priv->ddp_comp, comp_id,
+				&mtk_disp_color_funcs);
+	if (ret) {
+		dev_err(dev, "Failed to initialize component: %d\n", ret);
+		return ret;
+	}
+
+	priv->data = of_device_get_match_data(dev);
+
+	platform_set_drvdata(pdev, priv);
+
+	ret = component_add(dev, &mtk_disp_color_component_ops);
+	if (ret)
+		dev_err(dev, "Failed to add component: %d\n", ret);
+
+	return ret;
+}
+
+static int mtk_disp_color_remove(struct platform_device *pdev)
+{
+	component_del(&pdev->dev, &mtk_disp_color_component_ops);
+
+	return 0;
+}
+
+static const struct mtk_disp_color_data mt2701_color_driver_data = {
+	.color_offset = DISP_COLOR_START_MT2701,
+};
+
+static const struct mtk_disp_color_data mt8173_color_driver_data = {
+	.color_offset = DISP_COLOR_START_MT8173,
+};
+
+static const struct of_device_id mtk_disp_color_driver_dt_match[] = {
+	{ .compatible = "mediatek,mt2701-disp-color",
+	  .data = &mt2701_color_driver_data},
+	{ .compatible = "mediatek,mt8173-disp-color",
+	  .data = &mt8173_color_driver_data},
+	{},
+};
+MODULE_DEVICE_TABLE(of, mtk_disp_color_driver_dt_match);
+
+struct platform_driver mtk_disp_color_driver = {
+	.probe		= mtk_disp_color_probe,
+	.remove		= mtk_disp_color_remove,
+	.driver		= {
+		.name	= "mediatek-disp-color",
+		.owner	= THIS_MODULE,
+		.of_match_table = mtk_disp_color_driver_dt_match,
+	},
+};
diff --git a/drivers/gpu/drm/mediatek/mtk_disp_ovl.c b/drivers/gpu/drm/mediatek/mtk_disp_ovl.c
index a14d7d64d7b1..35bc5babdbf7 100644
--- a/drivers/gpu/drm/mediatek/mtk_disp_ovl.c
+++ b/drivers/gpu/drm/mediatek/mtk_disp_ovl.c
@@ -42,9 +42,12 @@
 #define	OVL_RDMA_MEM_GMC	0x40402020
 
 #define OVL_CON_BYTE_SWAP	BIT(24)
+#define OVL_CON_MTX_YUV_TO_RGB	(6 << 16)
 #define OVL_CON_CLRFMT_RGB	(1 << 12)
 #define OVL_CON_CLRFMT_RGBA8888	(2 << 12)
 #define OVL_CON_CLRFMT_ARGB8888	(3 << 12)
+#define OVL_CON_CLRFMT_UYVY	(4 << 12)
+#define OVL_CON_CLRFMT_YUYV	(5 << 12)
 #define OVL_CON_CLRFMT_RGB565(ovl)	((ovl)->data->fmt_rgb565_is_0 ? \
 					0 : OVL_CON_CLRFMT_RGB)
 #define OVL_CON_CLRFMT_RGB888(ovl)	((ovl)->data->fmt_rgb565_is_0 ? \
@@ -176,6 +179,10 @@ static unsigned int ovl_fmt_convert(struct mtk_disp_ovl *ovl, unsigned int fmt)
 	case DRM_FORMAT_XBGR8888:
 	case DRM_FORMAT_ABGR8888:
 		return OVL_CON_CLRFMT_RGBA8888 | OVL_CON_BYTE_SWAP;
+	case DRM_FORMAT_UYVY:
+		return OVL_CON_CLRFMT_UYVY | OVL_CON_MTX_YUV_TO_RGB;
+	case DRM_FORMAT_YUYV:
+		return OVL_CON_CLRFMT_YUYV | OVL_CON_MTX_YUV_TO_RGB;
 	}
 }
 
diff --git a/drivers/gpu/drm/mediatek/mtk_drm_crtc.c b/drivers/gpu/drm/mediatek/mtk_drm_crtc.c
index 6582e1f56d37..cb32c9369f3a 100644
--- a/drivers/gpu/drm/mediatek/mtk_drm_crtc.c
+++ b/drivers/gpu/drm/mediatek/mtk_drm_crtc.c
@@ -559,6 +559,8 @@ int mtk_drm_crtc_create(struct drm_device *drm_dev,
 	mtk_crtc->ddp_comp = devm_kmalloc_array(dev, mtk_crtc->ddp_comp_nr,
 						sizeof(*mtk_crtc->ddp_comp),
 						GFP_KERNEL);
+	if (!mtk_crtc->ddp_comp)
+		return -ENOMEM;
 
 	mtk_crtc->mutex = mtk_disp_mutex_get(priv->mutex_dev, pipe);
 	if (IS_ERR(mtk_crtc->mutex)) {
diff --git a/drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.c b/drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.c
index 8b52416b6e41..07d7ea2268ef 100644
--- a/drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.c
+++ b/drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.c
@@ -38,13 +38,6 @@
 
 #define DISP_REG_UFO_START			0x0000
 
-#define DISP_COLOR_CFG_MAIN			0x0400
-#define DISP_COLOR_START_MT2701			0x0f00
-#define DISP_COLOR_START_MT8173			0x0c00
-#define DISP_COLOR_START(comp)			((comp)->data->color_offset)
-#define DISP_COLOR_WIDTH(comp)			(DISP_COLOR_START(comp) + 0x50)
-#define DISP_COLOR_HEIGHT(comp)			(DISP_COLOR_START(comp) + 0x54)
-
 #define DISP_AAL_EN				0x0000
 #define DISP_AAL_SIZE				0x0030
 
@@ -55,9 +48,6 @@
 
 #define LUT_10BIT_MASK				0x03ff
 
-#define COLOR_BYPASS_ALL			BIT(7)
-#define COLOR_SEQ_SEL				BIT(13)
-
 #define OD_RELAYMODE				BIT(0)
 
 #define UFO_BYPASS				BIT(2)
@@ -82,20 +72,6 @@
 #define DITHER_ADD_LSHIFT_G(x)			(((x) & 0x7) << 4)
 #define DITHER_ADD_RSHIFT_G(x)			(((x) & 0x7) << 0)
 
-struct mtk_disp_color_data {
-	unsigned int color_offset;
-};
-
-struct mtk_disp_color {
-	struct mtk_ddp_comp			ddp_comp;
-	const struct mtk_disp_color_data	*data;
-};
-
-static inline struct mtk_disp_color *comp_to_color(struct mtk_ddp_comp *comp)
-{
-	return container_of(comp, struct mtk_disp_color, ddp_comp);
-}
-
 void mtk_dither_set(struct mtk_ddp_comp *comp, unsigned int bpc,
 		    unsigned int CFG)
 {
@@ -119,25 +95,6 @@ void mtk_dither_set(struct mtk_ddp_comp *comp, unsigned int bpc,
 	}
 }
 
-static void mtk_color_config(struct mtk_ddp_comp *comp, unsigned int w,
-			     unsigned int h, unsigned int vrefresh,
-			     unsigned int bpc)
-{
-	struct mtk_disp_color *color = comp_to_color(comp);
-
-	writel(w, comp->regs + DISP_COLOR_WIDTH(color));
-	writel(h, comp->regs + DISP_COLOR_HEIGHT(color));
-}
-
-static void mtk_color_start(struct mtk_ddp_comp *comp)
-{
-	struct mtk_disp_color *color = comp_to_color(comp);
-
-	writel(COLOR_BYPASS_ALL | COLOR_SEQ_SEL,
-	       comp->regs + DISP_COLOR_CFG_MAIN);
-	writel(0x1, comp->regs + DISP_COLOR_START(color));
-}
-
 static void mtk_od_config(struct mtk_ddp_comp *comp, unsigned int w,
 			  unsigned int h, unsigned int vrefresh,
 			  unsigned int bpc)
@@ -229,11 +186,6 @@ static const struct mtk_ddp_comp_funcs ddp_gamma = {
 	.stop = mtk_gamma_stop,
 };
 
-static const struct mtk_ddp_comp_funcs ddp_color = {
-	.config = mtk_color_config,
-	.start = mtk_color_start,
-};
-
 static const struct mtk_ddp_comp_funcs ddp_od = {
 	.config = mtk_od_config,
 	.start = mtk_od_start,
@@ -268,8 +220,8 @@ struct mtk_ddp_comp_match {
 static const struct mtk_ddp_comp_match mtk_ddp_matches[DDP_COMPONENT_ID_MAX] = {
 	[DDP_COMPONENT_AAL]	= { MTK_DISP_AAL,	0, &ddp_aal },
 	[DDP_COMPONENT_BLS]	= { MTK_DISP_BLS,	0, NULL },
-	[DDP_COMPONENT_COLOR0]	= { MTK_DISP_COLOR,	0, &ddp_color },
-	[DDP_COMPONENT_COLOR1]	= { MTK_DISP_COLOR,	1, &ddp_color },
+	[DDP_COMPONENT_COLOR0]	= { MTK_DISP_COLOR,	0, NULL },
+	[DDP_COMPONENT_COLOR1]	= { MTK_DISP_COLOR,	1, NULL },
 	[DDP_COMPONENT_DPI0]	= { MTK_DPI,		0, NULL },
 	[DDP_COMPONENT_DSI0]	= { MTK_DSI,		0, NULL },
 	[DDP_COMPONENT_DSI1]	= { MTK_DSI,		1, NULL },
@@ -286,22 +238,6 @@ static const struct mtk_ddp_comp_match mtk_ddp_matches[DDP_COMPONENT_ID_MAX] = {
 	[DDP_COMPONENT_WDMA1]	= { MTK_DISP_WDMA,	1, NULL },
 };
 
-static const struct mtk_disp_color_data mt2701_color_driver_data = {
-	.color_offset = DISP_COLOR_START_MT2701,
-};
-
-static const struct mtk_disp_color_data mt8173_color_driver_data = {
-	.color_offset = DISP_COLOR_START_MT8173,
-};
-
-static const struct of_device_id mtk_disp_color_driver_dt_match[] = {
-	{ .compatible = "mediatek,mt2701-disp-color",
-	  .data = &mt2701_color_driver_data},
-	{ .compatible = "mediatek,mt8173-disp-color",
-	  .data = &mt8173_color_driver_data},
-	{},
-};
-
 int mtk_ddp_comp_get_id(struct device_node *node,
 			enum mtk_ddp_comp_type comp_type)
 {
@@ -324,23 +260,11 @@ int mtk_ddp_comp_init(struct device *dev, struct device_node *node,
 	enum mtk_ddp_comp_type type;
 	struct device_node *larb_node;
 	struct platform_device *larb_pdev;
-	const struct of_device_id *match;
-	struct mtk_disp_color *color;
 
 	if (comp_id < 0 || comp_id >= DDP_COMPONENT_ID_MAX)
 		return -EINVAL;
 
 	type = mtk_ddp_matches[comp_id].type;
-	if (type == MTK_DISP_COLOR) {
-		devm_kfree(dev, comp);
-		color = devm_kzalloc(dev, sizeof(*color), GFP_KERNEL);
-		if (!color)
-			return -ENOMEM;
-
-		match = of_match_node(mtk_disp_color_driver_dt_match, node);
-		color->data = match->data;
-		comp = &color->ddp_comp;
-	}
 
 	comp->id = comp_id;
 	comp->funcs = funcs ?: mtk_ddp_matches[comp_id].funcs;
diff --git a/drivers/gpu/drm/mediatek/mtk_drm_drv.c b/drivers/gpu/drm/mediatek/mtk_drm_drv.c
index f6c8ec4c7dbc..41d2cffe953e 100644
--- a/drivers/gpu/drm/mediatek/mtk_drm_drv.c
+++ b/drivers/gpu/drm/mediatek/mtk_drm_drv.c
@@ -439,11 +439,12 @@ static int mtk_drm_probe(struct platform_device *pdev)
 		private->comp_node[comp_id] = of_node_get(node);
 
 		/*
-		 * Currently only the OVL, RDMA, DSI, and DPI blocks have
+		 * Currently only the COLOR, OVL, RDMA, DSI, and DPI blocks have
 		 * separate component platform drivers and initialize their own
 		 * DDP component structure. The others are initialized here.
 		 */
-		if (comp_type == MTK_DISP_OVL ||
+		if (comp_type == MTK_DISP_COLOR ||
+		    comp_type == MTK_DISP_OVL ||
 		    comp_type == MTK_DISP_RDMA ||
 		    comp_type == MTK_DSI ||
 		    comp_type == MTK_DPI) {
@@ -566,6 +567,7 @@ static struct platform_driver mtk_drm_platform_driver = {
 
 static struct platform_driver * const mtk_drm_drivers[] = {
 	&mtk_ddp_driver,
+	&mtk_disp_color_driver,
 	&mtk_disp_ovl_driver,
 	&mtk_disp_rdma_driver,
 	&mtk_dpi_driver,
@@ -576,33 +578,14 @@ static struct platform_driver * const mtk_drm_drivers[] = {
 
 static int __init mtk_drm_init(void)
 {
-	int ret;
-	int i;
-
-	for (i = 0; i < ARRAY_SIZE(mtk_drm_drivers); i++) {
-		ret = platform_driver_register(mtk_drm_drivers[i]);
-		if (ret < 0) {
-			pr_err("Failed to register %s driver: %d\n",
-			       mtk_drm_drivers[i]->driver.name, ret);
-			goto err;
-		}
-	}
-
-	return 0;
-
-err:
-	while (--i >= 0)
-		platform_driver_unregister(mtk_drm_drivers[i]);
-
-	return ret;
+	return platform_register_drivers(mtk_drm_drivers,
+					 ARRAY_SIZE(mtk_drm_drivers));
 }
 
 static void __exit mtk_drm_exit(void)
 {
-	int i;
-
-	for (i = ARRAY_SIZE(mtk_drm_drivers) - 1; i >= 0; i--)
-		platform_driver_unregister(mtk_drm_drivers[i]);
+	platform_unregister_drivers(mtk_drm_drivers,
+				    ARRAY_SIZE(mtk_drm_drivers));
 }
 
 module_init(mtk_drm_init);
diff --git a/drivers/gpu/drm/mediatek/mtk_drm_drv.h b/drivers/gpu/drm/mediatek/mtk_drm_drv.h
index aef8747d810b..c3378c452c0a 100644
--- a/drivers/gpu/drm/mediatek/mtk_drm_drv.h
+++ b/drivers/gpu/drm/mediatek/mtk_drm_drv.h
@@ -59,6 +59,7 @@ struct mtk_drm_private {
 };
 
 extern struct platform_driver mtk_ddp_driver;
+extern struct platform_driver mtk_disp_color_driver;
 extern struct platform_driver mtk_disp_ovl_driver;
 extern struct platform_driver mtk_disp_rdma_driver;
 extern struct platform_driver mtk_dpi_driver;
diff --git a/drivers/gpu/drm/mediatek/mtk_drm_plane.c b/drivers/gpu/drm/mediatek/mtk_drm_plane.c
index e405e89ed5e5..1a59b9ab4aa8 100644
--- a/drivers/gpu/drm/mediatek/mtk_drm_plane.c
+++ b/drivers/gpu/drm/mediatek/mtk_drm_plane.c
@@ -28,6 +28,8 @@ static const u32 formats[] = {
 	DRM_FORMAT_XRGB8888,
 	DRM_FORMAT_ARGB8888,
 	DRM_FORMAT_RGB565,
+	DRM_FORMAT_UYVY,
+	DRM_FORMAT_YUYV,
 };
 
 static void mtk_plane_reset(struct drm_plane *plane)
diff --git a/drivers/gpu/drm/mediatek/mtk_dsi.c b/drivers/gpu/drm/mediatek/mtk_dsi.c
index b5cc6e12334c..97253c8f813b 100644
--- a/drivers/gpu/drm/mediatek/mtk_dsi.c
+++ b/drivers/gpu/drm/mediatek/mtk_dsi.c
@@ -930,7 +930,7 @@ static u32 mtk_dsi_recv_cnt(u8 type, u8 *read_data)
 		DRM_INFO("type is 0x02, try again\n");
 		break;
 	default:
-		DRM_INFO("type(0x%x) cannot be non-recognite\n", type);
+		DRM_INFO("type(0x%x) not recognized\n", type);
 		break;
 	}
 
diff --git a/drivers/gpu/drm/mediatek/mtk_hdmi.c b/drivers/gpu/drm/mediatek/mtk_hdmi.c
index 0a4ffd724146..71eb4fbbfc85 100644
--- a/drivers/gpu/drm/mediatek/mtk_hdmi.c
+++ b/drivers/gpu/drm/mediatek/mtk_hdmi.c
@@ -1778,33 +1778,14 @@ static struct platform_driver * const mtk_hdmi_drivers[] = {
 
 static int __init mtk_hdmitx_init(void)
 {
-	int ret;
-	int i;
-
-	for (i = 0; i < ARRAY_SIZE(mtk_hdmi_drivers); i++) {
-		ret = platform_driver_register(mtk_hdmi_drivers[i]);
-		if (ret < 0) {
-			pr_err("Failed to register %s driver: %d\n",
-			       mtk_hdmi_drivers[i]->driver.name, ret);
-			goto err;
-		}
-	}
-
-	return 0;
-
-err:
-	while (--i >= 0)
-		platform_driver_unregister(mtk_hdmi_drivers[i]);
-
-	return ret;
+	return platform_register_drivers(mtk_hdmi_drivers,
+					 ARRAY_SIZE(mtk_hdmi_drivers));
 }
 
 static void __exit mtk_hdmitx_exit(void)
 {
-	int i;
-
-	for (i = ARRAY_SIZE(mtk_hdmi_drivers) - 1; i >= 0; i--)
-		platform_driver_unregister(mtk_hdmi_drivers[i]);
+	platform_unregister_drivers(mtk_hdmi_drivers,
+				    ARRAY_SIZE(mtk_hdmi_drivers));
 }
 
 module_init(mtk_hdmitx_init);
diff --git a/drivers/gpu/drm/msm/Kconfig b/drivers/gpu/drm/msm/Kconfig
index b638d192ce5e..99d39b2aefa6 100644
--- a/drivers/gpu/drm/msm/Kconfig
+++ b/drivers/gpu/drm/msm/Kconfig
@@ -5,7 +5,7 @@ config DRM_MSM
 	depends on ARCH_QCOM || (ARM && COMPILE_TEST)
 	depends on OF && COMMON_CLK
 	depends on MMU
-	select QCOM_MDT_LOADER
+	select QCOM_MDT_LOADER if ARCH_QCOM
 	select REGULATOR
 	select DRM_KMS_HELPER
 	select DRM_PANEL
diff --git a/drivers/gpu/drm/msm/adreno/a5xx_gpu.c b/drivers/gpu/drm/msm/adreno/a5xx_gpu.c
index b4b54f1c24bc..f9eae03aa1dc 100644
--- a/drivers/gpu/drm/msm/adreno/a5xx_gpu.c
+++ b/drivers/gpu/drm/msm/adreno/a5xx_gpu.c
@@ -15,7 +15,7 @@
 #include <linux/cpumask.h>
 #include <linux/qcom_scm.h>
 #include <linux/dma-mapping.h>
-#include <linux/of_reserved_mem.h>
+#include <linux/of_address.h>
 #include <linux/soc/qcom/mdt_loader.h>
 #include "msm_gem.h"
 #include "msm_mmu.h"
@@ -26,16 +26,34 @@ static void a5xx_dump(struct msm_gpu *gpu);
 
 #define GPU_PAS_ID 13
 
-#if IS_ENABLED(CONFIG_QCOM_MDT_LOADER)
-
 static int zap_shader_load_mdt(struct device *dev, const char *fwname)
 {
 	const struct firmware *fw;
+	struct device_node *np;
+	struct resource r;
 	phys_addr_t mem_phys;
 	ssize_t mem_size;
 	void *mem_region = NULL;
 	int ret;
 
+	if (!IS_ENABLED(CONFIG_ARCH_QCOM))
+		return -EINVAL;
+
+	np = of_get_child_by_name(dev->of_node, "zap-shader");
+	if (!np)
+		return -ENODEV;
+
+	np = of_parse_phandle(np, "memory-region", 0);
+	if (!np)
+		return -EINVAL;
+
+	ret = of_address_to_resource(np, 0, &r);
+	if (ret)
+		return ret;
+
+	mem_phys = r.start;
+	mem_size = resource_size(&r);
+
 	/* Request the MDT file for the firmware */
 	ret = request_firmware(&fw, fwname, dev);
 	if (ret) {
@@ -51,7 +69,7 @@ static int zap_shader_load_mdt(struct device *dev, const char *fwname)
 	}
 
 	/* Allocate memory for the firmware image */
-	mem_region = dmam_alloc_coherent(dev, mem_size, &mem_phys, GFP_KERNEL);
+	mem_region = memremap(mem_phys, mem_size,  MEMREMAP_WC);
 	if (!mem_region) {
 		ret = -ENOMEM;
 		goto out;
@@ -69,16 +87,13 @@ static int zap_shader_load_mdt(struct device *dev, const char *fwname)
 		DRM_DEV_ERROR(dev, "Unable to authorize the image\n");
 
 out:
+	if (mem_region)
+		memunmap(mem_region);
+
 	release_firmware(fw);
 
 	return ret;
 }
-#else
-static int zap_shader_load_mdt(struct device *dev, const char *fwname)
-{
-	return -ENODEV;
-}
-#endif
 
 static void a5xx_submit(struct msm_gpu *gpu, struct msm_gem_submit *submit,
 	struct msm_file_private *ctx)
@@ -117,12 +132,10 @@ static void a5xx_submit(struct msm_gpu *gpu, struct msm_gem_submit *submit,
 	gpu->funcs->flush(gpu);
 }
 
-struct a5xx_hwcg {
+static const struct {
 	u32 offset;
 	u32 value;
-};
-
-static const struct a5xx_hwcg a530_hwcg[] = {
+} a5xx_hwcg[] = {
 	{REG_A5XX_RBBM_CLOCK_CNTL_SP0, 0x02222222},
 	{REG_A5XX_RBBM_CLOCK_CNTL_SP1, 0x02222222},
 	{REG_A5XX_RBBM_CLOCK_CNTL_SP2, 0x02222222},
@@ -217,38 +230,16 @@ static const struct a5xx_hwcg a530_hwcg[] = {
 	{REG_A5XX_RBBM_CLOCK_DELAY_VFD, 0x00002222}
 };
 
-static const struct {
-	int (*test)(struct adreno_gpu *gpu);
-	const struct a5xx_hwcg *regs;
-	unsigned int count;
-} a5xx_hwcg_regs[] = {
-	{ adreno_is_a530, a530_hwcg, ARRAY_SIZE(a530_hwcg), },
-};
-
-static void _a5xx_enable_hwcg(struct msm_gpu *gpu,
-		const struct a5xx_hwcg *regs, unsigned int count)
+void a5xx_set_hwcg(struct msm_gpu *gpu, bool state)
 {
 	unsigned int i;
 
-	for (i = 0; i < count; i++)
-		gpu_write(gpu, regs[i].offset, regs[i].value);
+	for (i = 0; i < ARRAY_SIZE(a5xx_hwcg); i++)
+		gpu_write(gpu, a5xx_hwcg[i].offset,
+			state ? a5xx_hwcg[i].value : 0);
 
-	gpu_write(gpu, REG_A5XX_RBBM_CLOCK_CNTL, 0xAAA8AA00);
-	gpu_write(gpu, REG_A5XX_RBBM_ISDB_CNT, 0x182);
-}
-
-static void a5xx_enable_hwcg(struct msm_gpu *gpu)
-{
-	struct adreno_gpu *adreno_gpu = to_adreno_gpu(gpu);
-	unsigned int i;
-
-	for (i = 0; i < ARRAY_SIZE(a5xx_hwcg_regs); i++) {
-		if (a5xx_hwcg_regs[i].test(adreno_gpu)) {
-			_a5xx_enable_hwcg(gpu, a5xx_hwcg_regs[i].regs,
-				a5xx_hwcg_regs[i].count);
-			return;
-		}
-	}
+	gpu_write(gpu, REG_A5XX_RBBM_CLOCK_CNTL, state ? 0xAAA8AA00 : 0);
+	gpu_write(gpu, REG_A5XX_RBBM_ISDB_CNT, state ? 0x182 : 0x180);
 }
 
 static int a5xx_me_init(struct msm_gpu *gpu)
@@ -377,45 +368,6 @@ static int a5xx_zap_shader_resume(struct msm_gpu *gpu)
 	return ret;
 }
 
-/* Set up a child device to "own" the zap shader */
-static int a5xx_zap_shader_dev_init(struct device *parent, struct device *dev)
-{
-	struct device_node *node;
-	int ret;
-
-	if (dev->parent)
-		return 0;
-
-	/* Find the sub-node for the zap shader */
-	node = of_get_child_by_name(parent->of_node, "zap-shader");
-	if (!node) {
-		DRM_DEV_ERROR(parent, "zap-shader not found in device tree\n");
-		return -ENODEV;
-	}
-
-	dev->parent = parent;
-	dev->of_node = node;
-	dev_set_name(dev, "adreno_zap_shader");
-
-	ret = device_register(dev);
-	if (ret) {
-		DRM_DEV_ERROR(parent, "Couldn't register zap shader device\n");
-		goto out;
-	}
-
-	ret = of_reserved_mem_device_init(dev);
-	if (ret) {
-		DRM_DEV_ERROR(parent, "Unable to set up the reserved memory\n");
-		device_unregister(dev);
-	}
-
-out:
-	if (ret)
-		dev->parent = NULL;
-
-	return ret;
-}
-
 static int a5xx_zap_shader_init(struct msm_gpu *gpu)
 {
 	static bool loaded;
@@ -444,11 +396,7 @@ static int a5xx_zap_shader_init(struct msm_gpu *gpu)
 		return -ENODEV;
 	}
 
-	ret = a5xx_zap_shader_dev_init(&pdev->dev, &a5xx_gpu->zap_dev);
-
-	if (!ret)
-		ret = zap_shader_load_mdt(&a5xx_gpu->zap_dev,
-			adreno_gpu->info->zapfw);
+	ret = zap_shader_load_mdt(&pdev->dev, adreno_gpu->info->zapfw);
 
 	loaded = !ret;
 
@@ -545,7 +493,7 @@ static int a5xx_hw_init(struct msm_gpu *gpu)
 	gpu_write(gpu, REG_A5XX_RBBM_AHB_CNTL1, 0xA6FFFFFF);
 
 	/* Enable HWCG */
-	a5xx_enable_hwcg(gpu);
+	a5xx_set_hwcg(gpu, true);
 
 	gpu_write(gpu, REG_A5XX_RBBM_AHB_CNTL2, 0x0000003F);
 
@@ -691,9 +639,6 @@ static void a5xx_destroy(struct msm_gpu *gpu)
 
 	DBG("%s", gpu->name);
 
-	if (a5xx_gpu->zap_dev.parent)
-		device_unregister(&a5xx_gpu->zap_dev);
-
 	if (a5xx_gpu->pm4_bo) {
 		if (a5xx_gpu->pm4_iova)
 			msm_gem_put_iova(a5xx_gpu->pm4_bo, gpu->aspace);
@@ -920,31 +865,30 @@ static const u32 a5xx_registers[] = {
 	0x0000, 0x0002, 0x0004, 0x0020, 0x0022, 0x0026, 0x0029, 0x002B,
 	0x002E, 0x0035, 0x0038, 0x0042, 0x0044, 0x0044, 0x0047, 0x0095,
 	0x0097, 0x00BB, 0x03A0, 0x0464, 0x0469, 0x046F, 0x04D2, 0x04D3,
-	0x04E0, 0x0533, 0x0540, 0x0555, 0xF400, 0xF400, 0xF800, 0xF807,
-	0x0800, 0x081A, 0x081F, 0x0841, 0x0860, 0x0860, 0x0880, 0x08A0,
-	0x0B00, 0x0B12, 0x0B15, 0x0B28, 0x0B78, 0x0B7F, 0x0BB0, 0x0BBD,
-	0x0BC0, 0x0BC6, 0x0BD0, 0x0C53, 0x0C60, 0x0C61, 0x0C80, 0x0C82,
-	0x0C84, 0x0C85, 0x0C90, 0x0C98, 0x0CA0, 0x0CA0, 0x0CB0, 0x0CB2,
-	0x2180, 0x2185, 0x2580, 0x2585, 0x0CC1, 0x0CC1, 0x0CC4, 0x0CC7,
-	0x0CCC, 0x0CCC, 0x0CD0, 0x0CD8, 0x0CE0, 0x0CE5, 0x0CE8, 0x0CE8,
-	0x0CEC, 0x0CF1, 0x0CFB, 0x0D0E, 0x2100, 0x211E, 0x2140, 0x2145,
-	0x2500, 0x251E, 0x2540, 0x2545, 0x0D10, 0x0D17, 0x0D20, 0x0D23,
-	0x0D30, 0x0D30, 0x20C0, 0x20C0, 0x24C0, 0x24C0, 0x0E40, 0x0E43,
-	0x0E4A, 0x0E4A, 0x0E50, 0x0E57, 0x0E60, 0x0E7C, 0x0E80, 0x0E8E,
-	0x0E90, 0x0E96, 0x0EA0, 0x0EA8, 0x0EB0, 0x0EB2, 0xE140, 0xE147,
-	0xE150, 0xE187, 0xE1A0, 0xE1A9, 0xE1B0, 0xE1B6, 0xE1C0, 0xE1C7,
-	0xE1D0, 0xE1D1, 0xE200, 0xE201, 0xE210, 0xE21C, 0xE240, 0xE268,
-	0xE000, 0xE006, 0xE010, 0xE09A, 0xE0A0, 0xE0A4, 0xE0AA, 0xE0EB,
-	0xE100, 0xE105, 0xE380, 0xE38F, 0xE3B0, 0xE3B0, 0xE400, 0xE405,
-	0xE408, 0xE4E9, 0xE4F0, 0xE4F0, 0xE280, 0xE280, 0xE282, 0xE2A3,
-	0xE2A5, 0xE2C2, 0xE940, 0xE947, 0xE950, 0xE987, 0xE9A0, 0xE9A9,
-	0xE9B0, 0xE9B6, 0xE9C0, 0xE9C7, 0xE9D0, 0xE9D1, 0xEA00, 0xEA01,
-	0xEA10, 0xEA1C, 0xEA40, 0xEA68, 0xE800, 0xE806, 0xE810, 0xE89A,
-	0xE8A0, 0xE8A4, 0xE8AA, 0xE8EB, 0xE900, 0xE905, 0xEB80, 0xEB8F,
-	0xEBB0, 0xEBB0, 0xEC00, 0xEC05, 0xEC08, 0xECE9, 0xECF0, 0xECF0,
-	0xEA80, 0xEA80, 0xEA82, 0xEAA3, 0xEAA5, 0xEAC2, 0xA800, 0xA8FF,
-	0xAC60, 0xAC60, 0xB000, 0xB97F, 0xB9A0, 0xB9BF,
-	~0
+	0x04E0, 0x0533, 0x0540, 0x0555, 0x0800, 0x081A, 0x081F, 0x0841,
+	0x0860, 0x0860, 0x0880, 0x08A0, 0x0B00, 0x0B12, 0x0B15, 0x0B28,
+	0x0B78, 0x0B7F, 0x0BB0, 0x0BBD, 0x0BC0, 0x0BC6, 0x0BD0, 0x0C53,
+	0x0C60, 0x0C61, 0x0C80, 0x0C82, 0x0C84, 0x0C85, 0x0C90, 0x0C98,
+	0x0CA0, 0x0CA0, 0x0CB0, 0x0CB2, 0x2180, 0x2185, 0x2580, 0x2585,
+	0x0CC1, 0x0CC1, 0x0CC4, 0x0CC7, 0x0CCC, 0x0CCC, 0x0CD0, 0x0CD8,
+	0x0CE0, 0x0CE5, 0x0CE8, 0x0CE8, 0x0CEC, 0x0CF1, 0x0CFB, 0x0D0E,
+	0x2100, 0x211E, 0x2140, 0x2145, 0x2500, 0x251E, 0x2540, 0x2545,
+	0x0D10, 0x0D17, 0x0D20, 0x0D23, 0x0D30, 0x0D30, 0x20C0, 0x20C0,
+	0x24C0, 0x24C0, 0x0E40, 0x0E43, 0x0E4A, 0x0E4A, 0x0E50, 0x0E57,
+	0x0E60, 0x0E7C, 0x0E80, 0x0E8E, 0x0E90, 0x0E96, 0x0EA0, 0x0EA8,
+	0x0EB0, 0x0EB2, 0xE140, 0xE147, 0xE150, 0xE187, 0xE1A0, 0xE1A9,
+	0xE1B0, 0xE1B6, 0xE1C0, 0xE1C7, 0xE1D0, 0xE1D1, 0xE200, 0xE201,
+	0xE210, 0xE21C, 0xE240, 0xE268, 0xE000, 0xE006, 0xE010, 0xE09A,
+	0xE0A0, 0xE0A4, 0xE0AA, 0xE0EB, 0xE100, 0xE105, 0xE380, 0xE38F,
+	0xE3B0, 0xE3B0, 0xE400, 0xE405, 0xE408, 0xE4E9, 0xE4F0, 0xE4F0,
+	0xE280, 0xE280, 0xE282, 0xE2A3, 0xE2A5, 0xE2C2, 0xE940, 0xE947,
+	0xE950, 0xE987, 0xE9A0, 0xE9A9, 0xE9B0, 0xE9B6, 0xE9C0, 0xE9C7,
+	0xE9D0, 0xE9D1, 0xEA00, 0xEA01, 0xEA10, 0xEA1C, 0xEA40, 0xEA68,
+	0xE800, 0xE806, 0xE810, 0xE89A, 0xE8A0, 0xE8A4, 0xE8AA, 0xE8EB,
+	0xE900, 0xE905, 0xEB80, 0xEB8F, 0xEBB0, 0xEBB0, 0xEC00, 0xEC05,
+	0xEC08, 0xECE9, 0xECF0, 0xECF0, 0xEA80, 0xEA80, 0xEA82, 0xEAA3,
+	0xEAA5, 0xEAC2, 0xA800, 0xA8FF, 0xAC60, 0xAC60, 0xB000, 0xB97F,
+	0xB9A0, 0xB9BF, ~0
 };
 
 static void a5xx_dump(struct msm_gpu *gpu)
@@ -1020,7 +964,14 @@ static void a5xx_show(struct msm_gpu *gpu, struct seq_file *m)
 {
 	seq_printf(m, "status:   %08x\n",
 			gpu_read(gpu, REG_A5XX_RBBM_STATUS));
+
+	/*
+	 * Temporarily disable hardware clock gating before going into
+	 * adreno_show to avoid issues while reading the registers
+	 */
+	a5xx_set_hwcg(gpu, false);
 	adreno_show(gpu, m);
+	a5xx_set_hwcg(gpu, true);
 }
 #endif
 
diff --git a/drivers/gpu/drm/msm/adreno/a5xx_gpu.h b/drivers/gpu/drm/msm/adreno/a5xx_gpu.h
index 6638bc85645d..1137092241d5 100644
--- a/drivers/gpu/drm/msm/adreno/a5xx_gpu.h
+++ b/drivers/gpu/drm/msm/adreno/a5xx_gpu.h
@@ -36,8 +36,6 @@ struct a5xx_gpu {
 	uint32_t gpmu_dwords;
 
 	uint32_t lm_leakage;
-
-	struct device zap_dev;
 };
 
 #define to_a5xx_gpu(x) container_of(x, struct a5xx_gpu, base)
@@ -59,5 +57,6 @@ static inline int spin_usecs(struct msm_gpu *gpu, uint32_t usecs,
 }
 
 bool a5xx_idle(struct msm_gpu *gpu);
+void a5xx_set_hwcg(struct msm_gpu *gpu, bool state);
 
 #endif /* __A5XX_GPU_H__ */
diff --git a/drivers/gpu/drm/msm/adreno/adreno_gpu.c b/drivers/gpu/drm/msm/adreno/adreno_gpu.c
index f1ab2703674a..7414c6bbd582 100644
--- a/drivers/gpu/drm/msm/adreno/adreno_gpu.c
+++ b/drivers/gpu/drm/msm/adreno/adreno_gpu.c
@@ -48,8 +48,15 @@ int adreno_get_param(struct msm_gpu *gpu, uint32_t param, uint64_t *value)
 		*value = adreno_gpu->base.fast_rate;
 		return 0;
 	case MSM_PARAM_TIMESTAMP:
-		if (adreno_gpu->funcs->get_timestamp)
-			return adreno_gpu->funcs->get_timestamp(gpu, value);
+		if (adreno_gpu->funcs->get_timestamp) {
+			int ret;
+
+			pm_runtime_get_sync(&gpu->pdev->dev);
+			ret = adreno_gpu->funcs->get_timestamp(gpu, value);
+			pm_runtime_put_autosuspend(&gpu->pdev->dev);
+
+			return ret;
+		}
 		return -EINVAL;
 	default:
 		DBG("%s: invalid param: %u", gpu->name, param);
diff --git a/drivers/gpu/drm/msm/dsi/dsi_host.c b/drivers/gpu/drm/msm/dsi/dsi_host.c
index 9e9c5696bc03..c7b612c3d771 100644
--- a/drivers/gpu/drm/msm/dsi/dsi_host.c
+++ b/drivers/gpu/drm/msm/dsi/dsi_host.c
@@ -2137,6 +2137,13 @@ void msm_dsi_host_get_phy_clk_req(struct mipi_dsi_host *host,
 	struct msm_dsi_phy_clk_request *clk_req)
 {
 	struct msm_dsi_host *msm_host = to_msm_dsi_host(host);
+	int ret;
+
+	ret = dsi_calc_clk_rate(msm_host);
+	if (ret) {
+		pr_err("%s: unable to calc clk rate, %d\n", __func__, ret);
+		return;
+	}
 
 	clk_req->bitclk_rate = msm_host->byte_clk_rate * 8;
 	clk_req->escclk_rate = msm_host->esc_clk_rate;
@@ -2280,7 +2287,6 @@ int msm_dsi_host_set_display_mode(struct mipi_dsi_host *host,
 					struct drm_display_mode *mode)
 {
 	struct msm_dsi_host *msm_host = to_msm_dsi_host(host);
-	int ret;
 
 	if (msm_host->mode) {
 		drm_mode_destroy(msm_host->dev, msm_host->mode);
@@ -2293,12 +2299,6 @@ int msm_dsi_host_set_display_mode(struct mipi_dsi_host *host,
 		return -ENOMEM;
 	}
 
-	ret = dsi_calc_clk_rate(msm_host);
-	if (ret) {
-		pr_err("%s: unable to calc clk rate, %d\n", __func__, ret);
-		return ret;
-	}
-
 	return 0;
 }
 
diff --git a/drivers/gpu/drm/msm/mdp/mdp5/mdp5_crtc.c b/drivers/gpu/drm/msm/mdp/mdp5/mdp5_crtc.c
index cb5415d6c04b..735a87a699fa 100644
--- a/drivers/gpu/drm/msm/mdp/mdp5/mdp5_crtc.c
+++ b/drivers/gpu/drm/msm/mdp/mdp5/mdp5_crtc.c
@@ -221,8 +221,8 @@ static void blend_setup(struct drm_crtc *crtc)
 	struct mdp5_ctl *ctl = mdp5_cstate->ctl;
 	uint32_t blend_op, fg_alpha, bg_alpha, ctl_blend_flags = 0;
 	unsigned long flags;
-	enum mdp5_pipe stage[STAGE_MAX + 1][MAX_PIPE_STAGE] = { SSPP_NONE };
-	enum mdp5_pipe r_stage[STAGE_MAX + 1][MAX_PIPE_STAGE] = { SSPP_NONE };
+	enum mdp5_pipe stage[STAGE_MAX + 1][MAX_PIPE_STAGE] = { { SSPP_NONE } };
+	enum mdp5_pipe r_stage[STAGE_MAX + 1][MAX_PIPE_STAGE] = { { SSPP_NONE } };
 	int i, plane_cnt = 0;
 	bool bg_alpha_enabled = false;
 	u32 mixer_op_mode = 0;
@@ -753,6 +753,7 @@ static int mdp5_crtc_cursor_set(struct drm_crtc *crtc,
 	if (!handle) {
 		DBG("Cursor off");
 		cursor_enable = false;
+		mdp5_enable(mdp5_kms);
 		goto set_cursor;
 	}
 
@@ -776,6 +777,8 @@ static int mdp5_crtc_cursor_set(struct drm_crtc *crtc,
 
 	get_roi(crtc, &roi_w, &roi_h);
 
+	mdp5_enable(mdp5_kms);
+
 	mdp5_write(mdp5_kms, REG_MDP5_LM_CURSOR_STRIDE(lm), stride);
 	mdp5_write(mdp5_kms, REG_MDP5_LM_CURSOR_FORMAT(lm),
 			MDP5_LM_CURSOR_FORMAT_FORMAT(CURSOR_FMT_ARGB8888));
@@ -804,6 +807,7 @@ set_cursor:
 	crtc_flush(crtc, flush_mask);
 
 end:
+	mdp5_disable(mdp5_kms);
 	if (old_bo) {
 		drm_flip_work_queue(&mdp5_crtc->unref_cursor_work, old_bo);
 		/* enable vblank to complete cursor work: */
@@ -836,6 +840,8 @@ static int mdp5_crtc_cursor_move(struct drm_crtc *crtc, int x, int y)
 
 	get_roi(crtc, &roi_w, &roi_h);
 
+	mdp5_enable(mdp5_kms);
+
 	spin_lock_irqsave(&mdp5_crtc->cursor.lock, flags);
 	mdp5_write(mdp5_kms, REG_MDP5_LM_CURSOR_SIZE(lm),
 			MDP5_LM_CURSOR_SIZE_ROI_H(roi_h) |
@@ -847,6 +853,8 @@ static int mdp5_crtc_cursor_move(struct drm_crtc *crtc, int x, int y)
 
 	crtc_flush(crtc, flush_mask);
 
+	mdp5_disable(mdp5_kms);
+
 	return 0;
 }
 
diff --git a/drivers/gpu/drm/msm/mdp/mdp5/mdp5_encoder.c b/drivers/gpu/drm/msm/mdp/mdp5/mdp5_encoder.c
index 97f3294fbfc6..70bef51245af 100644
--- a/drivers/gpu/drm/msm/mdp/mdp5/mdp5_encoder.c
+++ b/drivers/gpu/drm/msm/mdp/mdp5/mdp5_encoder.c
@@ -299,7 +299,7 @@ static void mdp5_encoder_enable(struct drm_encoder *encoder)
 	struct mdp5_interface *intf = mdp5_encoder->intf;
 
 	if (intf->mode == MDP5_INTF_DSI_MODE_COMMAND)
-		mdp5_cmd_encoder_disable(encoder);
+		mdp5_cmd_encoder_enable(encoder);
 	else
 		mdp5_vid_encoder_enable(encoder);
 }
diff --git a/drivers/gpu/drm/msm/mdp/mdp5/mdp5_kms.c b/drivers/gpu/drm/msm/mdp/mdp5/mdp5_kms.c
index 5d13fa5381ee..1c603aef3c59 100644
--- a/drivers/gpu/drm/msm/mdp/mdp5/mdp5_kms.c
+++ b/drivers/gpu/drm/msm/mdp/mdp5/mdp5_kms.c
@@ -502,7 +502,7 @@ static int get_clk(struct platform_device *pdev, struct clk **clkp,
 		const char *name, bool mandatory)
 {
 	struct device *dev = &pdev->dev;
-	struct clk *clk = devm_clk_get(dev, name);
+	struct clk *clk = msm_clk_get(pdev, name);
 	if (IS_ERR(clk) && mandatory) {
 		dev_err(dev, "failed to get %s (%ld)\n", name, PTR_ERR(clk));
 		return PTR_ERR(clk);
@@ -887,21 +887,21 @@ static int mdp5_init(struct platform_device *pdev, struct drm_device *dev)
 	}
 
 	/* mandatory clocks: */
-	ret = get_clk(pdev, &mdp5_kms->axi_clk, "bus_clk", true);
+	ret = get_clk(pdev, &mdp5_kms->axi_clk, "bus", true);
 	if (ret)
 		goto fail;
-	ret = get_clk(pdev, &mdp5_kms->ahb_clk, "iface_clk", true);
+	ret = get_clk(pdev, &mdp5_kms->ahb_clk, "iface", true);
 	if (ret)
 		goto fail;
-	ret = get_clk(pdev, &mdp5_kms->core_clk, "core_clk", true);
+	ret = get_clk(pdev, &mdp5_kms->core_clk, "core", true);
 	if (ret)
 		goto fail;
-	ret = get_clk(pdev, &mdp5_kms->vsync_clk, "vsync_clk", true);
+	ret = get_clk(pdev, &mdp5_kms->vsync_clk, "vsync", true);
 	if (ret)
 		goto fail;
 
 	/* optional clocks: */
-	get_clk(pdev, &mdp5_kms->lut_clk, "lut_clk", false);
+	get_clk(pdev, &mdp5_kms->lut_clk, "lut", false);
 
 	/* we need to set a default rate before enabling.  Set a safe
 	 * rate first, then figure out hw revision, and then set a
diff --git a/drivers/gpu/drm/msm/mdp/mdp5/mdp5_plane.c b/drivers/gpu/drm/msm/mdp/mdp5/mdp5_plane.c
index fe3a4de1a433..61f39c86dd09 100644
--- a/drivers/gpu/drm/msm/mdp/mdp5/mdp5_plane.c
+++ b/drivers/gpu/drm/msm/mdp/mdp5/mdp5_plane.c
@@ -890,8 +890,8 @@ static int mdp5_plane_mode_set(struct drm_plane *plane,
 	struct mdp5_hw_pipe *right_hwpipe;
 	const struct mdp_format *format;
 	uint32_t nplanes, config = 0;
-	struct phase_step step = { 0 };
-	struct pixel_ext pe = { 0 };
+	struct phase_step step = { { 0 } };
+	struct pixel_ext pe = { { 0 } };
 	uint32_t hdecm = 0, vdecm = 0;
 	uint32_t pix_format;
 	unsigned int rotation;
diff --git a/drivers/gpu/drm/msm/msm_gem.c b/drivers/gpu/drm/msm/msm_gem.c
index 65f35544c1ec..a0c60e738db8 100644
--- a/drivers/gpu/drm/msm/msm_gem.c
+++ b/drivers/gpu/drm/msm/msm_gem.c
@@ -383,8 +383,10 @@ int msm_gem_get_iova(struct drm_gem_object *obj,
 		struct page **pages;
 
 		vma = add_vma(obj, aspace);
-		if (IS_ERR(vma))
-			return PTR_ERR(vma);
+		if (IS_ERR(vma)) {
+			ret = PTR_ERR(vma);
+			goto unlock;
+		}
 
 		pages = get_pages(obj);
 		if (IS_ERR(pages)) {
@@ -405,7 +407,7 @@ int msm_gem_get_iova(struct drm_gem_object *obj,
 
 fail:
 	del_vma(vma);
-
+unlock:
 	mutex_unlock(&msm_obj->lock);
 	return ret;
 }
@@ -928,8 +930,12 @@ static struct drm_gem_object *_msm_gem_new(struct drm_device *dev,
 	if (use_vram) {
 		struct msm_gem_vma *vma;
 		struct page **pages;
+		struct msm_gem_object *msm_obj = to_msm_bo(obj);
+
+		mutex_lock(&msm_obj->lock);
 
 		vma = add_vma(obj, NULL);
+		mutex_unlock(&msm_obj->lock);
 		if (IS_ERR(vma)) {
 			ret = PTR_ERR(vma);
 			goto fail;
diff --git a/drivers/gpu/drm/msm/msm_gem_submit.c b/drivers/gpu/drm/msm/msm_gem_submit.c
index 6bfca7470141..8a75c0bd8a78 100644
--- a/drivers/gpu/drm/msm/msm_gem_submit.c
+++ b/drivers/gpu/drm/msm/msm_gem_submit.c
@@ -34,8 +34,8 @@ static struct msm_gem_submit *submit_create(struct drm_device *dev,
 		struct msm_gpu *gpu, uint32_t nr_bos, uint32_t nr_cmds)
 {
 	struct msm_gem_submit *submit;
-	uint64_t sz = sizeof(*submit) + (nr_bos * sizeof(submit->bos[0])) +
-		(nr_cmds * sizeof(submit->cmd[0]));
+	uint64_t sz = sizeof(*submit) + ((u64)nr_bos * sizeof(submit->bos[0])) +
+		((u64)nr_cmds * sizeof(submit->cmd[0]));
 
 	if (sz > SIZE_MAX)
 		return NULL;
@@ -451,7 +451,7 @@ int msm_ioctl_gem_submit(struct drm_device *dev, void *data,
 	if (ret)
 		goto out;
 
-	if (!(args->fence & MSM_SUBMIT_NO_IMPLICIT)) {
+	if (!(args->flags & MSM_SUBMIT_NO_IMPLICIT)) {
 		ret = submit_fence_sync(submit);
 		if (ret)
 			goto out;
diff --git a/drivers/gpu/drm/msm/msm_gem_vma.c b/drivers/gpu/drm/msm/msm_gem_vma.c
index c36321bc8714..d34e331554f3 100644
--- a/drivers/gpu/drm/msm/msm_gem_vma.c
+++ b/drivers/gpu/drm/msm/msm_gem_vma.c
@@ -42,7 +42,7 @@ void
 msm_gem_unmap_vma(struct msm_gem_address_space *aspace,
 		struct msm_gem_vma *vma, struct sg_table *sgt)
 {
-	if (!vma->iova)
+	if (!aspace || !vma->iova)
 		return;
 
 	if (aspace->mmu) {
diff --git a/drivers/gpu/drm/nouveau/nouveau_connector.c b/drivers/gpu/drm/nouveau/nouveau_connector.c
index 147b22163f9f..dab78c660dd6 100644
--- a/drivers/gpu/drm/nouveau/nouveau_connector.c
+++ b/drivers/gpu/drm/nouveau/nouveau_connector.c
@@ -1158,8 +1158,6 @@ nouveau_connector_aux_xfer(struct drm_dp_aux *obj, struct drm_dp_aux_msg *msg)
 		return -ENODEV;
 	if (WARN_ON(msg->size > 16))
 		return -E2BIG;
-	if (msg->size == 0)
-		return msg->size;
 
 	ret = nvkm_i2c_aux_acquire(aux);
 	if (ret)
diff --git a/drivers/gpu/drm/nouveau/nouveau_display.c b/drivers/gpu/drm/nouveau/nouveau_display.c
index 8d1df5678eaa..f362c9fa8b3b 100644
--- a/drivers/gpu/drm/nouveau/nouveau_display.c
+++ b/drivers/gpu/drm/nouveau/nouveau_display.c
@@ -409,7 +409,6 @@ nouveau_display_fini(struct drm_device *dev, bool suspend)
 	struct nouveau_display *disp = nouveau_display(dev);
 	struct nouveau_drm *drm = nouveau_drm(dev);
 	struct drm_connector *connector;
-	struct drm_crtc *crtc;
 
 	if (!suspend) {
 		if (drm_drv_uses_atomic_modeset(dev))
@@ -418,10 +417,6 @@ nouveau_display_fini(struct drm_device *dev, bool suspend)
 			drm_crtc_force_disable_all(dev);
 	}
 
-	/* Make sure that drm and hw vblank irqs get properly disabled. */
-	drm_for_each_crtc(crtc, dev)
-		drm_crtc_vblank_off(crtc);
-
 	/* disable flip completion events */
 	nvif_notify_put(&drm->flip);
 
diff --git a/drivers/gpu/drm/nouveau/nv50_display.c b/drivers/gpu/drm/nouveau/nv50_display.c
index e3132a2ce34d..2bc0dc985214 100644
--- a/drivers/gpu/drm/nouveau/nv50_display.c
+++ b/drivers/gpu/drm/nouveau/nv50_display.c
@@ -3674,15 +3674,24 @@ nv50_sor_create(struct drm_connector *connector, struct dcb_output *dcbe)
 	drm_mode_connector_attach_encoder(connector, encoder);
 
 	if (dcbe->type == DCB_OUTPUT_DP) {
+		struct nv50_disp *disp = nv50_disp(encoder->dev);
 		struct nvkm_i2c_aux *aux =
 			nvkm_i2c_aux_find(i2c, dcbe->i2c_index);
 		if (aux) {
-			nv_encoder->i2c = &nv_connector->aux.ddc;
+			if (disp->disp->oclass < GF110_DISP) {
+				/* HW has no support for address-only
+				 * transactions, so we're required to
+				 * use custom I2C-over-AUX code.
+				 */
+				nv_encoder->i2c = &aux->i2c;
+			} else {
+				nv_encoder->i2c = &nv_connector->aux.ddc;
+			}
 			nv_encoder->aux = aux;
 		}
 
 		/*TODO: Use DP Info Table to check for support. */
-		if (nv50_disp(encoder->dev)->disp->oclass >= GF110_DISP) {
+		if (disp->disp->oclass >= GF110_DISP) {
 			ret = nv50_mstm_new(nv_encoder, &nv_connector->aux, 16,
 					    nv_connector->base.base.id,
 					    &nv_encoder->dp.mstm);
@@ -3931,6 +3940,8 @@ nv50_disp_atomic_commit_tail(struct drm_atomic_state *state)
 
 		NV_ATOMIC(drm, "%s: clr %04x (set %04x)\n", crtc->name,
 			  asyh->clr.mask, asyh->set.mask);
+		if (crtc_state->active && !asyh->state.active)
+			drm_crtc_vblank_off(crtc);
 
 		if (asyh->clr.mask) {
 			nv50_head_flush_clr(head, asyh, atom->flush_disable);
@@ -4016,11 +4027,13 @@ nv50_disp_atomic_commit_tail(struct drm_atomic_state *state)
 			nv50_head_flush_set(head, asyh);
 			interlock_core = 1;
 		}
-	}
 
-	for_each_crtc_in_state(state, crtc, crtc_state, i) {
-		if (crtc->state->event)
-			drm_crtc_vblank_get(crtc);
+		if (asyh->state.active) {
+			if (!crtc_state->active)
+				drm_crtc_vblank_on(crtc);
+			if (asyh->state.event)
+				drm_crtc_vblank_get(crtc);
+		}
 	}
 
 	/* Update plane(s). */
@@ -4067,12 +4080,14 @@ nv50_disp_atomic_commit_tail(struct drm_atomic_state *state)
 		if (crtc->state->event) {
 			unsigned long flags;
 			/* Get correct count/ts if racing with vblank irq */
-			drm_accurate_vblank_count(crtc);
+			if (crtc->state->active)
+				drm_accurate_vblank_count(crtc);
 			spin_lock_irqsave(&crtc->dev->event_lock, flags);
 			drm_crtc_send_vblank_event(crtc, crtc->state->event);
 			spin_unlock_irqrestore(&crtc->dev->event_lock, flags);
 			crtc->state->event = NULL;
-			drm_crtc_vblank_put(crtc);
+			if (crtc->state->active)
+				drm_crtc_vblank_put(crtc);
 		}
 	}
 
diff --git a/drivers/gpu/drm/nouveau/nvkm/engine/disp/base.c b/drivers/gpu/drm/nouveau/nvkm/engine/disp/base.c
index c7c84d34d97e..88582af8bd89 100644
--- a/drivers/gpu/drm/nouveau/nvkm/engine/disp/base.c
+++ b/drivers/gpu/drm/nouveau/nvkm/engine/disp/base.c
@@ -267,6 +267,8 @@ nvkm_disp_oneinit(struct nvkm_engine *engine)
 	/* Create output path objects for each VBIOS display path. */
 	i = -1;
 	while ((data = dcb_outp_parse(bios, ++i, &ver, &hdr, &dcbE))) {
+		if (ver < 0x40) /* No support for chipsets prior to NV50. */
+			break;
 		if (dcbE.type == DCB_OUTPUT_UNUSED)
 			continue;
 		if (dcbE.type == DCB_OUTPUT_EOL)
diff --git a/drivers/gpu/drm/nouveau/nvkm/engine/disp/ior.h b/drivers/gpu/drm/nouveau/nvkm/engine/disp/ior.h
index a24312fb0228..a1e8bf48b778 100644
--- a/drivers/gpu/drm/nouveau/nvkm/engine/disp/ior.h
+++ b/drivers/gpu/drm/nouveau/nvkm/engine/disp/ior.h
@@ -22,6 +22,7 @@ struct nvkm_ior {
 		unsigned proto_evo:4;
 		enum nvkm_ior_proto {
 			CRT,
+			TV,
 			TMDS,
 			LVDS,
 			DP,
diff --git a/drivers/gpu/drm/nouveau/nvkm/engine/disp/nv50.h b/drivers/gpu/drm/nouveau/nvkm/engine/disp/nv50.h
index 19c635663399..6ea19466f436 100644
--- a/drivers/gpu/drm/nouveau/nvkm/engine/disp/nv50.h
+++ b/drivers/gpu/drm/nouveau/nvkm/engine/disp/nv50.h
@@ -22,7 +22,7 @@ struct nv50_disp {
 		u8 type[3];
 	} pior;
 
-	struct nv50_disp_chan *chan[17];
+	struct nv50_disp_chan *chan[21];
 };
 
 void nv50_disp_super_1(struct nv50_disp *);
diff --git a/drivers/gpu/drm/nouveau/nvkm/engine/disp/outp.c b/drivers/gpu/drm/nouveau/nvkm/engine/disp/outp.c
index 85aff85394ac..be9e7f8c3b23 100644
--- a/drivers/gpu/drm/nouveau/nvkm/engine/disp/outp.c
+++ b/drivers/gpu/drm/nouveau/nvkm/engine/disp/outp.c
@@ -62,6 +62,7 @@ nvkm_outp_xlat(struct nvkm_outp *outp, enum nvkm_ior_type *type)
 	case 0:
 		switch (outp->info.type) {
 		case DCB_OUTPUT_ANALOG: *type = DAC; return  CRT;
+		case DCB_OUTPUT_TV    : *type = DAC; return   TV;
 		case DCB_OUTPUT_TMDS  : *type = SOR; return TMDS;
 		case DCB_OUTPUT_LVDS  : *type = SOR; return LVDS;
 		case DCB_OUTPUT_DP    : *type = SOR; return   DP;
diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/bar/gf100.c b/drivers/gpu/drm/nouveau/nvkm/subdev/bar/gf100.c
index c794b2c2d21e..6d8f21290aa2 100644
--- a/drivers/gpu/drm/nouveau/nvkm/subdev/bar/gf100.c
+++ b/drivers/gpu/drm/nouveau/nvkm/subdev/bar/gf100.c
@@ -129,7 +129,7 @@ gf100_bar_init(struct nvkm_bar *base)
 
 	if (bar->bar[0].mem) {
 		addr = nvkm_memory_addr(bar->bar[0].mem) >> 12;
-		nvkm_wr32(device, 0x001714, 0xc0000000 | addr);
+		nvkm_wr32(device, 0x001714, 0x80000000 | addr);
 	}
 
 	return 0;
diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/i2c/Kbuild b/drivers/gpu/drm/nouveau/nvkm/subdev/i2c/Kbuild
index 48f01e40b8fc..b768e66a472b 100644
--- a/drivers/gpu/drm/nouveau/nvkm/subdev/i2c/Kbuild
+++ b/drivers/gpu/drm/nouveau/nvkm/subdev/i2c/Kbuild
@@ -25,6 +25,7 @@ nvkm-y += nvkm/subdev/i2c/bit.o
 
 nvkm-y += nvkm/subdev/i2c/aux.o
 nvkm-y += nvkm/subdev/i2c/auxg94.o
+nvkm-y += nvkm/subdev/i2c/auxgf119.o
 nvkm-y += nvkm/subdev/i2c/auxgm200.o
 
 nvkm-y += nvkm/subdev/i2c/anx9805.o
diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/i2c/aux.c b/drivers/gpu/drm/nouveau/nvkm/subdev/i2c/aux.c
index d172e42dd228..4c1f547da463 100644
--- a/drivers/gpu/drm/nouveau/nvkm/subdev/i2c/aux.c
+++ b/drivers/gpu/drm/nouveau/nvkm/subdev/i2c/aux.c
@@ -117,6 +117,10 @@ int
 nvkm_i2c_aux_xfer(struct nvkm_i2c_aux *aux, bool retry, u8 type,
 		  u32 addr, u8 *data, u8 *size)
 {
+	if (!*size && !aux->func->address_only) {
+		AUX_ERR(aux, "address-only transaction dropped");
+		return -ENOSYS;
+	}
 	return aux->func->xfer(aux, retry, type, addr, data, size);
 }
 
diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/i2c/aux.h b/drivers/gpu/drm/nouveau/nvkm/subdev/i2c/aux.h
index 27a4a39c87f0..9587ab456d9e 100644
--- a/drivers/gpu/drm/nouveau/nvkm/subdev/i2c/aux.h
+++ b/drivers/gpu/drm/nouveau/nvkm/subdev/i2c/aux.h
@@ -3,6 +3,7 @@
 #include "pad.h"
 
 struct nvkm_i2c_aux_func {
+	bool address_only;
 	int  (*xfer)(struct nvkm_i2c_aux *, bool retry, u8 type,
 		     u32 addr, u8 *data, u8 *size);
 	int  (*lnk_ctl)(struct nvkm_i2c_aux *, int link_nr, int link_bw,
@@ -17,7 +18,12 @@ void nvkm_i2c_aux_del(struct nvkm_i2c_aux **);
 int nvkm_i2c_aux_xfer(struct nvkm_i2c_aux *, bool retry, u8 type,
 		      u32 addr, u8 *data, u8 *size);
 
+int g94_i2c_aux_new_(const struct nvkm_i2c_aux_func *, struct nvkm_i2c_pad *,
+		     int, u8, struct nvkm_i2c_aux **);
+
 int g94_i2c_aux_new(struct nvkm_i2c_pad *, int, u8, struct nvkm_i2c_aux **);
+int g94_i2c_aux_xfer(struct nvkm_i2c_aux *, bool, u8, u32, u8 *, u8 *);
+int gf119_i2c_aux_new(struct nvkm_i2c_pad *, int, u8, struct nvkm_i2c_aux **);
 int gm200_i2c_aux_new(struct nvkm_i2c_pad *, int, u8, struct nvkm_i2c_aux **);
 
 #define AUX_MSG(b,l,f,a...) do {                                               \
diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/i2c/auxg94.c b/drivers/gpu/drm/nouveau/nvkm/subdev/i2c/auxg94.c
index ab8cb196c34e..c8ab1b5741a3 100644
--- a/drivers/gpu/drm/nouveau/nvkm/subdev/i2c/auxg94.c
+++ b/drivers/gpu/drm/nouveau/nvkm/subdev/i2c/auxg94.c
@@ -72,7 +72,7 @@ g94_i2c_aux_init(struct g94_i2c_aux *aux)
 	return 0;
 }
 
-static int
+int
 g94_i2c_aux_xfer(struct nvkm_i2c_aux *obj, bool retry,
 		 u8 type, u32 addr, u8 *data, u8 *size)
 {
@@ -105,9 +105,9 @@ g94_i2c_aux_xfer(struct nvkm_i2c_aux *obj, bool retry,
 	}
 
 	ctrl  = nvkm_rd32(device, 0x00e4e4 + base);
-	ctrl &= ~0x0001f0ff;
+	ctrl &= ~0x0001f1ff;
 	ctrl |= type << 12;
-	ctrl |= *size - 1;
+	ctrl |= (*size ? (*size - 1) : 0x00000100);
 	nvkm_wr32(device, 0x00e4e0 + base, addr);
 
 	/* (maybe) retry transaction a number of times on failure... */
@@ -160,14 +160,10 @@ out:
 	return ret < 0 ? ret : (stat & 0x000f0000) >> 16;
 }
 
-static const struct nvkm_i2c_aux_func
-g94_i2c_aux_func = {
-	.xfer = g94_i2c_aux_xfer,
-};
-
 int
-g94_i2c_aux_new(struct nvkm_i2c_pad *pad, int index, u8 drive,
-		struct nvkm_i2c_aux **paux)
+g94_i2c_aux_new_(const struct nvkm_i2c_aux_func *func,
+		 struct nvkm_i2c_pad *pad, int index, u8 drive,
+		 struct nvkm_i2c_aux **paux)
 {
 	struct g94_i2c_aux *aux;
 
@@ -175,8 +171,20 @@ g94_i2c_aux_new(struct nvkm_i2c_pad *pad, int index, u8 drive,
 		return -ENOMEM;
 	*paux = &aux->base;
 
-	nvkm_i2c_aux_ctor(&g94_i2c_aux_func, pad, index, &aux->base);
+	nvkm_i2c_aux_ctor(func, pad, index, &aux->base);
 	aux->ch = drive;
 	aux->base.intr = 1 << aux->ch;
 	return 0;
 }
+
+static const struct nvkm_i2c_aux_func
+g94_i2c_aux = {
+	.xfer = g94_i2c_aux_xfer,
+};
+
+int
+g94_i2c_aux_new(struct nvkm_i2c_pad *pad, int index, u8 drive,
+		struct nvkm_i2c_aux **paux)
+{
+	return g94_i2c_aux_new_(&g94_i2c_aux, pad, index, drive, paux);
+}
diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/i2c/auxgf119.c b/drivers/gpu/drm/nouveau/nvkm/subdev/i2c/auxgf119.c
new file mode 100644
index 000000000000..dab40cd8fe3a
--- /dev/null
+++ b/drivers/gpu/drm/nouveau/nvkm/subdev/i2c/auxgf119.c
@@ -0,0 +1,35 @@
+/*
+ * Copyright 2017 Red Hat Inc.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ */
+#include "aux.h"
+
+static const struct nvkm_i2c_aux_func
+gf119_i2c_aux = {
+	.address_only = true,
+	.xfer = g94_i2c_aux_xfer,
+};
+
+int
+gf119_i2c_aux_new(struct nvkm_i2c_pad *pad, int index, u8 drive,
+		  struct nvkm_i2c_aux **paux)
+{
+	return g94_i2c_aux_new_(&gf119_i2c_aux, pad, index, drive, paux);
+}
diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/i2c/auxgm200.c b/drivers/gpu/drm/nouveau/nvkm/subdev/i2c/auxgm200.c
index ee091fa79628..7ef60895f43a 100644
--- a/drivers/gpu/drm/nouveau/nvkm/subdev/i2c/auxgm200.c
+++ b/drivers/gpu/drm/nouveau/nvkm/subdev/i2c/auxgm200.c
@@ -105,9 +105,9 @@ gm200_i2c_aux_xfer(struct nvkm_i2c_aux *obj, bool retry,
 	}
 
 	ctrl  = nvkm_rd32(device, 0x00d954 + base);
-	ctrl &= ~0x0001f0ff;
+	ctrl &= ~0x0001f1ff;
 	ctrl |= type << 12;
-	ctrl |= *size - 1;
+	ctrl |= (*size ? (*size - 1) : 0x00000100);
 	nvkm_wr32(device, 0x00d950 + base, addr);
 
 	/* (maybe) retry transaction a number of times on failure... */
@@ -162,6 +162,7 @@ out:
 
 static const struct nvkm_i2c_aux_func
 gm200_i2c_aux_func = {
+	.address_only = true,
 	.xfer = gm200_i2c_aux_xfer,
 };
 
diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/i2c/padgf119.c b/drivers/gpu/drm/nouveau/nvkm/subdev/i2c/padgf119.c
index d53212f1aa52..3bc4d0310076 100644
--- a/drivers/gpu/drm/nouveau/nvkm/subdev/i2c/padgf119.c
+++ b/drivers/gpu/drm/nouveau/nvkm/subdev/i2c/padgf119.c
@@ -28,7 +28,7 @@
 static const struct nvkm_i2c_pad_func
 gf119_i2c_pad_s_func = {
 	.bus_new_4 = gf119_i2c_bus_new,
-	.aux_new_6 = g94_i2c_aux_new,
+	.aux_new_6 = gf119_i2c_aux_new,
 	.mode = g94_i2c_pad_mode,
 };
 
@@ -41,7 +41,7 @@ gf119_i2c_pad_s_new(struct nvkm_i2c *i2c, int id, struct nvkm_i2c_pad **ppad)
 static const struct nvkm_i2c_pad_func
 gf119_i2c_pad_x_func = {
 	.bus_new_4 = gf119_i2c_bus_new,
-	.aux_new_6 = g94_i2c_aux_new,
+	.aux_new_6 = gf119_i2c_aux_new,
 };
 
 int
diff --git a/drivers/gpu/drm/radeon/atombios_encoders.c b/drivers/gpu/drm/radeon/atombios_encoders.c
index fa4f8f008e4d..e67ed383e11b 100644
--- a/drivers/gpu/drm/radeon/atombios_encoders.c
+++ b/drivers/gpu/drm/radeon/atombios_encoders.c
@@ -31,6 +31,7 @@
 #include "radeon_asic.h"
 #include "atom.h"
 #include <linux/backlight.h>
+#include <linux/dmi.h>
 
 extern int atom_debug;
 
@@ -2184,9 +2185,17 @@ int radeon_atom_pick_dig_encoder(struct drm_encoder *encoder, int fe_idx)
 		goto assigned;
 	}
 
-	/* on DCE32 and encoder can driver any block so just crtc id */
+	/*
+	 * On DCE32 any encoder can drive any block so usually just use crtc id,
+	 * but Apple thinks different at least on iMac10,1, so there use linkb,
+	 * otherwise the internal eDP panel will stay dark.
+	 */
 	if (ASIC_IS_DCE32(rdev)) {
-		enc_idx = radeon_crtc->crtc_id;
+		if (dmi_match(DMI_PRODUCT_NAME, "iMac10,1"))
+			enc_idx = (dig->linkb) ? 1 : 0;
+		else
+			enc_idx = radeon_crtc->crtc_id;
+
 		goto assigned;
 	}
 
diff --git a/drivers/gpu/drm/radeon/radeon_kfd.c b/drivers/gpu/drm/radeon/radeon_kfd.c
index 699fe7f9b8bf..a2ab6dcdf4a2 100644
--- a/drivers/gpu/drm/radeon/radeon_kfd.c
+++ b/drivers/gpu/drm/radeon/radeon_kfd.c
@@ -184,7 +184,6 @@ void radeon_kfd_device_init(struct radeon_device *rdev)
 	if (rdev->kfd) {
 		struct kgd2kfd_shared_resources gpu_resources = {
 			.compute_vmid_bitmap = 0xFF00,
-			.num_mec = 1,
 			.num_pipe_per_mec = 4,
 			.num_queue_per_pipe = 8
 		};
diff --git a/drivers/gpu/drm/rockchip/Kconfig b/drivers/gpu/drm/rockchip/Kconfig
index 50c41c0a50ef..dcc539ba85d6 100644
--- a/drivers/gpu/drm/rockchip/Kconfig
+++ b/drivers/gpu/drm/rockchip/Kconfig
@@ -5,6 +5,10 @@ config DRM_ROCKCHIP
 	select DRM_KMS_HELPER
 	select DRM_PANEL
 	select VIDEOMODE_HELPERS
+	select DRM_ANALOGIX_DP if ROCKCHIP_ANALOGIX_DP
+	select DRM_DW_HDMI if ROCKCHIP_DW_HDMI
+	select DRM_MIPI_DSI if ROCKCHIP_DW_MIPI_DSI
+	select SND_SOC_HDMI_CODEC if ROCKCHIP_CDN_DP && SND_SOC
 	help
 	  Choose this option if you have a Rockchip soc chipset.
 	  This driver provides kernel mode setting and buffer
@@ -12,10 +16,10 @@ config DRM_ROCKCHIP
 	  2D or 3D acceleration; acceleration is performed by other
 	  IP found on the SoC.
 
+if DRM_ROCKCHIP
+
 config ROCKCHIP_ANALOGIX_DP
 	bool "Rockchip specific extensions for Analogix DP driver"
-	depends on DRM_ROCKCHIP
-	select DRM_ANALOGIX_DP
 	help
 	  This selects support for Rockchip SoC specific extensions
 	  for the Analogix Core DP driver. If you want to enable DP
@@ -23,9 +27,7 @@ config ROCKCHIP_ANALOGIX_DP
 
 config ROCKCHIP_CDN_DP
         bool "Rockchip cdn DP"
-        depends on DRM_ROCKCHIP
-	depends on EXTCON
-	select SND_SOC_HDMI_CODEC if SND_SOC
+	depends on EXTCON=y || (EXTCON=m && DRM_ROCKCHIP=m)
         help
 	  This selects support for Rockchip SoC specific extensions
 	  for the cdn DP driver. If you want to enable Dp on
@@ -34,8 +36,6 @@ config ROCKCHIP_CDN_DP
 
 config ROCKCHIP_DW_HDMI
         bool "Rockchip specific extensions for Synopsys DW HDMI"
-        depends on DRM_ROCKCHIP
-        select DRM_DW_HDMI
         help
 	  This selects support for Rockchip SoC specific extensions
 	  for the Synopsys DesignWare HDMI driver. If you want to
@@ -44,8 +44,6 @@ config ROCKCHIP_DW_HDMI
 
 config ROCKCHIP_DW_MIPI_DSI
 	bool "Rockchip specific extensions for Synopsys DW MIPI DSI"
-	depends on DRM_ROCKCHIP
-	select DRM_MIPI_DSI
 	help
 	 This selects support for Rockchip SoC specific extensions
 	 for the Synopsys DesignWare HDMI driver. If you want to
@@ -54,8 +52,9 @@ config ROCKCHIP_DW_MIPI_DSI
 
 config ROCKCHIP_INNO_HDMI
 	bool "Rockchip specific extensions for Innosilicon HDMI"
-	depends on DRM_ROCKCHIP
 	help
 	  This selects support for Rockchip SoC specific extensions
 	  for the Innosilicon HDMI driver. If you want to enable
 	  HDMI on RK3036 based SoC, you should select this option.
+
+endif
diff --git a/drivers/gpu/drm/rockchip/cdn-dp-core.c b/drivers/gpu/drm/rockchip/cdn-dp-core.c
index 14fa1f8351e8..9b0b0588bbed 100644
--- a/drivers/gpu/drm/rockchip/cdn-dp-core.c
+++ b/drivers/gpu/drm/rockchip/cdn-dp-core.c
@@ -1195,7 +1195,7 @@ static int cdn_dp_probe(struct platform_device *pdev)
 			continue;
 
 		port = devm_kzalloc(dev, sizeof(*port), GFP_KERNEL);
-		if (!dp)
+		if (!port)
 			return -ENOMEM;
 
 		port->extcon = extcon;
diff --git a/drivers/gpu/drm/rockchip/rockchip_drm_drv.h b/drivers/gpu/drm/rockchip/rockchip_drm_drv.h
index 47905faf5586..c7e96b82cf63 100644
--- a/drivers/gpu/drm/rockchip/rockchip_drm_drv.h
+++ b/drivers/gpu/drm/rockchip/rockchip_drm_drv.h
@@ -45,13 +45,13 @@ struct rockchip_crtc_state {
  *
  * @crtc: array of enabled CRTCs, used to map from "pipe" to drm_crtc.
  * @num_pipe: number of pipes for this device.
+ * @mm_lock: protect drm_mm on multi-threads.
  */
 struct rockchip_drm_private {
 	struct drm_fb_helper fbdev_helper;
 	struct drm_gem_object *fbdev_bo;
 	struct drm_atomic_state *state;
 	struct iommu_domain *domain;
-	/* protect drm_mm on multi-threads */
 	struct mutex mm_lock;
 	struct drm_mm mm;
 	struct list_head psr_list;
diff --git a/drivers/gpu/drm/rockchip/rockchip_drm_gem.c b/drivers/gpu/drm/rockchip/rockchip_drm_gem.c
index df9e57064f19..b74ac717e56a 100644
--- a/drivers/gpu/drm/rockchip/rockchip_drm_gem.c
+++ b/drivers/gpu/drm/rockchip/rockchip_drm_gem.c
@@ -29,12 +29,11 @@ static int rockchip_gem_iommu_map(struct rockchip_gem_object *rk_obj)
 	ssize_t ret;
 
 	mutex_lock(&private->mm_lock);
-
 	ret = drm_mm_insert_node_generic(&private->mm, &rk_obj->mm,
 					 rk_obj->base.size, PAGE_SIZE,
 					 0, 0);
-
 	mutex_unlock(&private->mm_lock);
+
 	if (ret < 0) {
 		DRM_ERROR("out of I/O virtual memory: %zd\n", ret);
 		return ret;
@@ -56,7 +55,9 @@ static int rockchip_gem_iommu_map(struct rockchip_gem_object *rk_obj)
 	return 0;
 
 err_remove_node:
+	mutex_lock(&private->mm_lock);
 	drm_mm_remove_node(&rk_obj->mm);
+	mutex_unlock(&private->mm_lock);
 
 	return ret;
 }
diff --git a/drivers/gpu/drm/rockchip/rockchip_drm_vop.c b/drivers/gpu/drm/rockchip/rockchip_drm_vop.c
index 5d450332c2fd..2900f1410d95 100644
--- a/drivers/gpu/drm/rockchip/rockchip_drm_vop.c
+++ b/drivers/gpu/drm/rockchip/rockchip_drm_vop.c
@@ -500,7 +500,7 @@ static void vop_line_flag_irq_disable(struct vop *vop)
 static int vop_enable(struct drm_crtc *crtc)
 {
 	struct vop *vop = to_vop(crtc);
-	int ret;
+	int ret, i;
 
 	ret = pm_runtime_get_sync(vop->dev);
 	if (ret < 0) {
@@ -533,6 +533,20 @@ static int vop_enable(struct drm_crtc *crtc)
 	}
 
 	memcpy(vop->regs, vop->regsbak, vop->len);
+	/*
+	 * We need to make sure that all windows are disabled before we
+	 * enable the crtc. Otherwise we might try to scan from a destroyed
+	 * buffer later.
+	 */
+	for (i = 0; i < vop->data->win_size; i++) {
+		struct vop_win *vop_win = &vop->win[i];
+		const struct vop_win_data *win = vop_win->data;
+
+		spin_lock(&vop->reg_lock);
+		VOP_WIN_SET(vop, win, enable, 0);
+		spin_unlock(&vop->reg_lock);
+	}
+
 	vop_cfg_done(vop);
 
 	/*
@@ -566,28 +580,11 @@ err_put_pm_runtime:
 static void vop_crtc_disable(struct drm_crtc *crtc)
 {
 	struct vop *vop = to_vop(crtc);
-	int i;
 
 	WARN_ON(vop->event);
 
 	rockchip_drm_psr_deactivate(&vop->crtc);
 
-	/*
-	 * We need to make sure that all windows are disabled before we
-	 * disable that crtc. Otherwise we might try to scan from a destroyed
-	 * buffer later.
-	 */
-	for (i = 0; i < vop->data->win_size; i++) {
-		struct vop_win *vop_win = &vop->win[i];
-		const struct vop_win_data *win = vop_win->data;
-
-		spin_lock(&vop->reg_lock);
-		VOP_WIN_SET(vop, win, enable, 0);
-		spin_unlock(&vop->reg_lock);
-	}
-
-	vop_cfg_done(vop);
-
 	drm_crtc_vblank_off(crtc);
 
 	/*
@@ -682,8 +679,10 @@ static int vop_plane_atomic_check(struct drm_plane *plane,
 	 * Src.x1 can be odd when do clip, but yuv plane start point
 	 * need align with 2 pixel.
 	 */
-	if (is_yuv_support(fb->format->format) && ((state->src.x1 >> 16) % 2))
+	if (is_yuv_support(fb->format->format) && ((state->src.x1 >> 16) % 2)) {
+		DRM_ERROR("Invalid Source: Yuv format not support odd xpos\n");
 		return -EINVAL;
+	}
 
 	return 0;
 }
@@ -764,7 +763,7 @@ static void vop_plane_atomic_update(struct drm_plane *plane,
 	spin_lock(&vop->reg_lock);
 
 	VOP_WIN_SET(vop, win, format, format);
-	VOP_WIN_SET(vop, win, yrgb_vir, fb->pitches[0] >> 2);
+	VOP_WIN_SET(vop, win, yrgb_vir, DIV_ROUND_UP(fb->pitches[0], 4));
 	VOP_WIN_SET(vop, win, yrgb_mst, dma_addr);
 	if (is_yuv_support(fb->format->format)) {
 		int hsub = drm_format_horz_chroma_subsampling(fb->format->format);
@@ -778,7 +777,7 @@ static void vop_plane_atomic_update(struct drm_plane *plane,
 		offset += (src->y1 >> 16) * fb->pitches[1] / vsub;
 
 		dma_addr = rk_uv_obj->dma_addr + offset + fb->offsets[1];
-		VOP_WIN_SET(vop, win, uv_vir, fb->pitches[1] >> 2);
+		VOP_WIN_SET(vop, win, uv_vir, DIV_ROUND_UP(fb->pitches[1], 4));
 		VOP_WIN_SET(vop, win, uv_mst, dma_addr);
 	}
 
diff --git a/drivers/gpu/drm/rockchip/rockchip_drm_vop.h b/drivers/gpu/drm/rockchip/rockchip_drm_vop.h
index 9979fd0c2282..27eefbfcf3d0 100644
--- a/drivers/gpu/drm/rockchip/rockchip_drm_vop.h
+++ b/drivers/gpu/drm/rockchip/rockchip_drm_vop.h
@@ -282,6 +282,9 @@ static inline uint16_t scl_get_bili_dn_vskip(int src_h, int dst_h,
 
 	act_height = (src_h + vskiplines - 1) / vskiplines;
 
+	if (act_height == dst_h)
+		return GET_SCL_FT_BILI_DN(src_h, dst_h) / vskiplines;
+
 	return GET_SCL_FT_BILI_DN(act_height, dst_h);
 }
 
diff --git a/drivers/gpu/drm/stm/Kconfig b/drivers/gpu/drm/stm/Kconfig
index 2c4817fb0890..8fe5b184b4e8 100644
--- a/drivers/gpu/drm/stm/Kconfig
+++ b/drivers/gpu/drm/stm/Kconfig
@@ -7,7 +7,6 @@ config DRM_STM
 	select DRM_PANEL
 	select VIDEOMODE_HELPERS
 	select FB_PROVIDE_GET_FB_UNMAPPED_AREA
-	default y
 
 	help
 	  Enable support for the on-chip display controller on
diff --git a/drivers/gpu/drm/vc4/vc4_crtc.c b/drivers/gpu/drm/vc4/vc4_crtc.c
index 403bbd5f99a9..a12cc7ea99b6 100644
--- a/drivers/gpu/drm/vc4/vc4_crtc.c
+++ b/drivers/gpu/drm/vc4/vc4_crtc.c
@@ -520,6 +520,34 @@ static void vc4_crtc_disable(struct drm_crtc *crtc)
 		     SCALER_DISPSTATX_EMPTY);
 }
 
+static void vc4_crtc_update_dlist(struct drm_crtc *crtc)
+{
+	struct drm_device *dev = crtc->dev;
+	struct vc4_dev *vc4 = to_vc4_dev(dev);
+	struct vc4_crtc *vc4_crtc = to_vc4_crtc(crtc);
+	struct vc4_crtc_state *vc4_state = to_vc4_crtc_state(crtc->state);
+
+	if (crtc->state->event) {
+		unsigned long flags;
+
+		crtc->state->event->pipe = drm_crtc_index(crtc);
+
+		WARN_ON(drm_crtc_vblank_get(crtc) != 0);
+
+		spin_lock_irqsave(&dev->event_lock, flags);
+		vc4_crtc->event = crtc->state->event;
+		crtc->state->event = NULL;
+
+		HVS_WRITE(SCALER_DISPLISTX(vc4_crtc->channel),
+			  vc4_state->mm.start);
+
+		spin_unlock_irqrestore(&dev->event_lock, flags);
+	} else {
+		HVS_WRITE(SCALER_DISPLISTX(vc4_crtc->channel),
+			  vc4_state->mm.start);
+	}
+}
+
 static void vc4_crtc_enable(struct drm_crtc *crtc)
 {
 	struct drm_device *dev = crtc->dev;
@@ -530,6 +558,12 @@ static void vc4_crtc_enable(struct drm_crtc *crtc)
 
 	require_hvs_enabled(dev);
 
+	/* Enable vblank irq handling before crtc is started otherwise
+	 * drm_crtc_get_vblank() fails in vc4_crtc_update_dlist().
+	 */
+	drm_crtc_vblank_on(crtc);
+	vc4_crtc_update_dlist(crtc);
+
 	/* Turn on the scaler, which will wait for vstart to start
 	 * compositing.
 	 */
@@ -541,9 +575,6 @@ static void vc4_crtc_enable(struct drm_crtc *crtc)
 	/* Turn on the pixel valve, which will emit the vstart signal. */
 	CRTC_WRITE(PV_V_CONTROL,
 		   CRTC_READ(PV_V_CONTROL) | PV_VCONTROL_VIDEN);
-
-	/* Enable vblank irq handling after crtc is started. */
-	drm_crtc_vblank_on(crtc);
 }
 
 static bool vc4_crtc_mode_fixup(struct drm_crtc *crtc,
@@ -598,7 +629,6 @@ static void vc4_crtc_atomic_flush(struct drm_crtc *crtc,
 {
 	struct drm_device *dev = crtc->dev;
 	struct vc4_dev *vc4 = to_vc4_dev(dev);
-	struct vc4_crtc *vc4_crtc = to_vc4_crtc(crtc);
 	struct vc4_crtc_state *vc4_state = to_vc4_crtc_state(crtc->state);
 	struct drm_plane *plane;
 	bool debug_dump_regs = false;
@@ -620,25 +650,15 @@ static void vc4_crtc_atomic_flush(struct drm_crtc *crtc,
 
 	WARN_ON_ONCE(dlist_next - dlist_start != vc4_state->mm.size);
 
-	if (crtc->state->event) {
-		unsigned long flags;
-
-		crtc->state->event->pipe = drm_crtc_index(crtc);
-
-		WARN_ON(drm_crtc_vblank_get(crtc) != 0);
-
-		spin_lock_irqsave(&dev->event_lock, flags);
-		vc4_crtc->event = crtc->state->event;
-		crtc->state->event = NULL;
-
-		HVS_WRITE(SCALER_DISPLISTX(vc4_crtc->channel),
-			  vc4_state->mm.start);
-
-		spin_unlock_irqrestore(&dev->event_lock, flags);
-	} else {
-		HVS_WRITE(SCALER_DISPLISTX(vc4_crtc->channel),
-			  vc4_state->mm.start);
-	}
+	/* Only update DISPLIST if the CRTC was already running and is not
+	 * being disabled.
+	 * vc4_crtc_enable() takes care of updating the dlist just after
+	 * re-enabling VBLANK interrupts and before enabling the engine.
+	 * If the CRTC is being disabled, there's no point in updating this
+	 * information.
+	 */
+	if (crtc->state->active && old_state->active)
+		vc4_crtc_update_dlist(crtc);
 
 	if (debug_dump_regs) {
 		DRM_INFO("CRTC %d HVS after:\n", drm_crtc_index(crtc));
diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_buffer.c b/drivers/gpu/drm/vmwgfx/vmwgfx_buffer.c
index 35bf781e418e..c7056322211c 100644
--- a/drivers/gpu/drm/vmwgfx/vmwgfx_buffer.c
+++ b/drivers/gpu/drm/vmwgfx/vmwgfx_buffer.c
@@ -30,49 +30,49 @@
 #include <drm/ttm/ttm_placement.h>
 #include <drm/ttm/ttm_page_alloc.h>
 
-static struct ttm_place vram_placement_flags = {
+static const struct ttm_place vram_placement_flags = {
 	.fpfn = 0,
 	.lpfn = 0,
 	.flags = TTM_PL_FLAG_VRAM | TTM_PL_FLAG_CACHED
 };
 
-static struct ttm_place vram_ne_placement_flags = {
+static const struct ttm_place vram_ne_placement_flags = {
 	.fpfn = 0,
 	.lpfn = 0,
 	.flags = TTM_PL_FLAG_VRAM | TTM_PL_FLAG_CACHED | TTM_PL_FLAG_NO_EVICT
 };
 
-static struct ttm_place sys_placement_flags = {
+static const struct ttm_place sys_placement_flags = {
 	.fpfn = 0,
 	.lpfn = 0,
 	.flags = TTM_PL_FLAG_SYSTEM | TTM_PL_FLAG_CACHED
 };
 
-static struct ttm_place sys_ne_placement_flags = {
+static const struct ttm_place sys_ne_placement_flags = {
 	.fpfn = 0,
 	.lpfn = 0,
 	.flags = TTM_PL_FLAG_SYSTEM | TTM_PL_FLAG_CACHED | TTM_PL_FLAG_NO_EVICT
 };
 
-static struct ttm_place gmr_placement_flags = {
+static const struct ttm_place gmr_placement_flags = {
 	.fpfn = 0,
 	.lpfn = 0,
 	.flags = VMW_PL_FLAG_GMR | TTM_PL_FLAG_CACHED
 };
 
-static struct ttm_place gmr_ne_placement_flags = {
+static const struct ttm_place gmr_ne_placement_flags = {
 	.fpfn = 0,
 	.lpfn = 0,
 	.flags = VMW_PL_FLAG_GMR | TTM_PL_FLAG_CACHED | TTM_PL_FLAG_NO_EVICT
 };
 
-static struct ttm_place mob_placement_flags = {
+static const struct ttm_place mob_placement_flags = {
 	.fpfn = 0,
 	.lpfn = 0,
 	.flags = VMW_PL_FLAG_MOB | TTM_PL_FLAG_CACHED
 };
 
-static struct ttm_place mob_ne_placement_flags = {
+static const struct ttm_place mob_ne_placement_flags = {
 	.fpfn = 0,
 	.lpfn = 0,
 	.flags = VMW_PL_FLAG_MOB | TTM_PL_FLAG_CACHED | TTM_PL_FLAG_NO_EVICT
@@ -85,7 +85,7 @@ struct ttm_placement vmw_vram_placement = {
 	.busy_placement = &vram_placement_flags
 };
 
-static struct ttm_place vram_gmr_placement_flags[] = {
+static const struct ttm_place vram_gmr_placement_flags[] = {
 	{
 		.fpfn = 0,
 		.lpfn = 0,
@@ -97,7 +97,7 @@ static struct ttm_place vram_gmr_placement_flags[] = {
 	}
 };
 
-static struct ttm_place gmr_vram_placement_flags[] = {
+static const struct ttm_place gmr_vram_placement_flags[] = {
 	{
 		.fpfn = 0,
 		.lpfn = 0,
@@ -116,7 +116,7 @@ struct ttm_placement vmw_vram_gmr_placement = {
 	.busy_placement = &gmr_placement_flags
 };
 
-static struct ttm_place vram_gmr_ne_placement_flags[] = {
+static const struct ttm_place vram_gmr_ne_placement_flags[] = {
 	{
 		.fpfn = 0,
 		.lpfn = 0,
@@ -165,7 +165,7 @@ struct ttm_placement vmw_sys_ne_placement = {
 	.busy_placement = &sys_ne_placement_flags
 };
 
-static struct ttm_place evictable_placement_flags[] = {
+static const struct ttm_place evictable_placement_flags[] = {
 	{
 		.fpfn = 0,
 		.lpfn = 0,
diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_cmdbuf.c b/drivers/gpu/drm/vmwgfx/vmwgfx_cmdbuf.c
index 99a7f4ab7d97..86178796de6c 100644
--- a/drivers/gpu/drm/vmwgfx/vmwgfx_cmdbuf.c
+++ b/drivers/gpu/drm/vmwgfx/vmwgfx_cmdbuf.c
@@ -779,8 +779,8 @@ static int vmw_cmdbuf_space_pool(struct vmw_cmdbuf_man *man,
 	if (ret)
 		return ret;
 
-	header->cb_header = dma_pool_alloc(man->headers, GFP_KERNEL,
-					   &header->handle);
+	header->cb_header = dma_pool_zalloc(man->headers, GFP_KERNEL,
+					    &header->handle);
 	if (!header->cb_header) {
 		ret = -ENOMEM;
 		goto out_no_cb_header;
@@ -790,7 +790,6 @@ static int vmw_cmdbuf_space_pool(struct vmw_cmdbuf_man *man,
 	cb_hdr = header->cb_header;
 	offset = header->node.start << PAGE_SHIFT;
 	header->cmd = man->map + offset;
-	memset(cb_hdr, 0, sizeof(*cb_hdr));
 	if (man->using_mob) {
 		cb_hdr->flags = SVGA_CB_FLAG_MOB;
 		cb_hdr->ptr.mob.mobid = man->cmd_space->mem.start;
@@ -827,8 +826,8 @@ static int vmw_cmdbuf_space_inline(struct vmw_cmdbuf_man *man,
 	if (WARN_ON_ONCE(size > VMW_CMDBUF_INLINE_SIZE))
 		return -ENOMEM;
 
-	dheader = dma_pool_alloc(man->dheaders, GFP_KERNEL,
-				 &header->handle);
+	dheader = dma_pool_zalloc(man->dheaders, GFP_KERNEL,
+				  &header->handle);
 	if (!dheader)
 		return -ENOMEM;
 
@@ -837,7 +836,6 @@ static int vmw_cmdbuf_space_inline(struct vmw_cmdbuf_man *man,
 	cb_hdr = &dheader->cb_header;
 	header->cb_header = cb_hdr;
 	header->cmd = dheader->cmd;
-	memset(dheader, 0, sizeof(*dheader));
 	cb_hdr->status = SVGA_CB_STATUS_NONE;
 	cb_hdr->flags = SVGA_CB_FLAG_NONE;
 	cb_hdr->ptr.pa = (u64)header->handle +
diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_cmdbuf_res.c b/drivers/gpu/drm/vmwgfx/vmwgfx_cmdbuf_res.c
index 1f013d45c9e9..36c7b6c839c0 100644
--- a/drivers/gpu/drm/vmwgfx/vmwgfx_cmdbuf_res.c
+++ b/drivers/gpu/drm/vmwgfx/vmwgfx_cmdbuf_res.c
@@ -205,7 +205,7 @@ int vmw_cmdbuf_res_add(struct vmw_cmdbuf_res_manager *man,
 	int ret;
 
 	cres = kzalloc(sizeof(*cres), GFP_KERNEL);
-	if (unlikely(cres == NULL))
+	if (unlikely(!cres))
 		return -ENOMEM;
 
 	cres->hash.key = user_key | (res_type << 24);
@@ -291,7 +291,7 @@ vmw_cmdbuf_res_man_create(struct vmw_private *dev_priv)
 	int ret;
 
 	man = kzalloc(sizeof(*man), GFP_KERNEL);
-	if (man == NULL)
+	if (!man)
 		return ERR_PTR(-ENOMEM);
 
 	man->dev_priv = dev_priv;
diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_context.c b/drivers/gpu/drm/vmwgfx/vmwgfx_context.c
index bcc6d4136c87..4212b3e673bc 100644
--- a/drivers/gpu/drm/vmwgfx/vmwgfx_context.c
+++ b/drivers/gpu/drm/vmwgfx/vmwgfx_context.c
@@ -210,8 +210,8 @@ static int vmw_gb_context_init(struct vmw_private *dev_priv,
 		for (i = 0; i < SVGA_COTABLE_DX10_MAX; ++i) {
 			uctx->cotables[i] = vmw_cotable_alloc(dev_priv,
 							      &uctx->res, i);
-			if (unlikely(uctx->cotables[i] == NULL)) {
-				ret = -ENOMEM;
+			if (unlikely(IS_ERR(uctx->cotables[i]))) {
+				ret = PTR_ERR(uctx->cotables[i]);
 				goto out_cotables;
 			}
 		}
@@ -777,7 +777,7 @@ static int vmw_context_define(struct drm_device *dev, void *data,
 	}
 
 	ctx = kzalloc(sizeof(*ctx), GFP_KERNEL);
-	if (unlikely(ctx == NULL)) {
+	if (unlikely(!ctx)) {
 		ttm_mem_global_free(vmw_mem_glob(dev_priv),
 				    vmw_user_context_size);
 		ret = -ENOMEM;
diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_cotable.c b/drivers/gpu/drm/vmwgfx/vmwgfx_cotable.c
index 6c026d75c180..d87861bbe971 100644
--- a/drivers/gpu/drm/vmwgfx/vmwgfx_cotable.c
+++ b/drivers/gpu/drm/vmwgfx/vmwgfx_cotable.c
@@ -584,7 +584,7 @@ struct vmw_resource *vmw_cotable_alloc(struct vmw_private *dev_priv,
 		return ERR_PTR(ret);
 
 	vcotbl = kzalloc(sizeof(*vcotbl), GFP_KERNEL);
-	if (unlikely(vcotbl == NULL)) {
+	if (unlikely(!vcotbl)) {
 		ret = -ENOMEM;
 		goto out_no_alloc;
 	}
diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_drv.c b/drivers/gpu/drm/vmwgfx/vmwgfx_drv.c
index 4a641555b960..4436d53ae16c 100644
--- a/drivers/gpu/drm/vmwgfx/vmwgfx_drv.c
+++ b/drivers/gpu/drm/vmwgfx/vmwgfx_drv.c
@@ -227,7 +227,7 @@ static const struct drm_ioctl_desc vmw_ioctls[] = {
 		      DRM_AUTH | DRM_RENDER_ALLOW),
 };
 
-static struct pci_device_id vmw_pci_id_list[] = {
+static const struct pci_device_id vmw_pci_id_list[] = {
 	{0x15ad, 0x0405, PCI_ANY_ID, PCI_ANY_ID, 0, 0, VMWGFX_CHIP_SVGAII},
 	{0, 0, 0}
 };
@@ -630,7 +630,7 @@ static int vmw_driver_load(struct drm_device *dev, unsigned long chipset)
 	char host_log[100] = {0};
 
 	dev_priv = kzalloc(sizeof(*dev_priv), GFP_KERNEL);
-	if (unlikely(dev_priv == NULL)) {
+	if (unlikely(!dev_priv)) {
 		DRM_ERROR("Failed allocating a device private struct.\n");
 		return -ENOMEM;
 	}
@@ -1035,7 +1035,7 @@ static int vmw_driver_open(struct drm_device *dev, struct drm_file *file_priv)
 	int ret = -ENOMEM;
 
 	vmw_fp = kzalloc(sizeof(*vmw_fp), GFP_KERNEL);
-	if (unlikely(vmw_fp == NULL))
+	if (unlikely(!vmw_fp))
 		return ret;
 
 	vmw_fp->tfile = ttm_object_file_init(dev_priv->tdev, 10);
@@ -1196,7 +1196,7 @@ static int vmw_master_create(struct drm_device *dev,
 	struct vmw_master *vmaster;
 
 	vmaster = kzalloc(sizeof(*vmaster), GFP_KERNEL);
-	if (unlikely(vmaster == NULL))
+	if (unlikely(!vmaster))
 		return -ENOMEM;
 
 	vmw_master_init(vmaster);
diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_execbuf.c b/drivers/gpu/drm/vmwgfx/vmwgfx_execbuf.c
index c7b53d987f06..2cfb3c93f42a 100644
--- a/drivers/gpu/drm/vmwgfx/vmwgfx_execbuf.c
+++ b/drivers/gpu/drm/vmwgfx/vmwgfx_execbuf.c
@@ -264,7 +264,7 @@ static int vmw_resource_val_add(struct vmw_sw_context *sw_context,
 	}
 
 	node = kzalloc(sizeof(*node), GFP_KERNEL);
-	if (unlikely(node == NULL)) {
+	if (unlikely(!node)) {
 		DRM_ERROR("Failed to allocate a resource validation "
 			  "entry.\n");
 		return -ENOMEM;
@@ -452,7 +452,7 @@ static int vmw_resource_relocation_add(struct list_head *list,
 	struct vmw_resource_relocation *rel;
 
 	rel = kmalloc(sizeof(*rel), GFP_KERNEL);
-	if (unlikely(rel == NULL)) {
+	if (unlikely(!rel)) {
 		DRM_ERROR("Failed to allocate a resource relocation.\n");
 		return -ENOMEM;
 	}
@@ -519,7 +519,7 @@ static int vmw_cmd_invalid(struct vmw_private *dev_priv,
 			   struct vmw_sw_context *sw_context,
 			   SVGA3dCmdHeader *header)
 {
-	return capable(CAP_SYS_ADMIN) ? : -EINVAL;
+	return -EINVAL;
 }
 
 static int vmw_cmd_ok(struct vmw_private *dev_priv,
@@ -2584,7 +2584,7 @@ static int vmw_cmd_dx_set_vertex_buffers(struct vmw_private *dev_priv,
 
 /**
  * vmw_cmd_dx_ia_set_vertex_buffers - Validate an
- * SVGA_3D_CMD_DX_IA_SET_VERTEX_BUFFERS command.
+ * SVGA_3D_CMD_DX_IA_SET_INDEX_BUFFER command.
  *
  * @dev_priv: Pointer to a device private struct.
  * @sw_context: The software context being used for this batch.
diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_fence.c b/drivers/gpu/drm/vmwgfx/vmwgfx_fence.c
index 6b2708b4eafe..b8bc5bc7de7e 100644
--- a/drivers/gpu/drm/vmwgfx/vmwgfx_fence.c
+++ b/drivers/gpu/drm/vmwgfx/vmwgfx_fence.c
@@ -284,7 +284,7 @@ struct vmw_fence_manager *vmw_fence_manager_init(struct vmw_private *dev_priv)
 {
 	struct vmw_fence_manager *fman = kzalloc(sizeof(*fman), GFP_KERNEL);
 
-	if (unlikely(fman == NULL))
+	if (unlikely(!fman))
 		return NULL;
 
 	fman->dev_priv = dev_priv;
@@ -541,7 +541,7 @@ int vmw_fence_create(struct vmw_fence_manager *fman,
  	int ret;
 
 	fence = kzalloc(sizeof(*fence), GFP_KERNEL);
-	if (unlikely(fence == NULL))
+	if (unlikely(!fence))
 		return -ENOMEM;
 
 	ret = vmw_fence_obj_init(fman, fence, seqno,
@@ -606,7 +606,7 @@ int vmw_user_fence_create(struct drm_file *file_priv,
 		return ret;
 
 	ufence = kzalloc(sizeof(*ufence), GFP_KERNEL);
-	if (unlikely(ufence == NULL)) {
+	if (unlikely(!ufence)) {
 		ret = -ENOMEM;
 		goto out_no_object;
 	}
@@ -966,7 +966,7 @@ int vmw_event_fence_action_queue(struct drm_file *file_priv,
 	struct vmw_fence_manager *fman = fman_from_fence(fence);
 
 	eaction = kzalloc(sizeof(*eaction), GFP_KERNEL);
-	if (unlikely(eaction == NULL))
+	if (unlikely(!eaction))
 		return -ENOMEM;
 
 	eaction->event = event;
@@ -1002,7 +1002,7 @@ static int vmw_event_fence_action_create(struct drm_file *file_priv,
 	int ret;
 
 	event = kzalloc(sizeof(*event), GFP_KERNEL);
-	if (unlikely(event == NULL)) {
+	if (unlikely(!event)) {
 		DRM_ERROR("Failed to allocate an event.\n");
 		ret = -ENOMEM;
 		goto out_no_space;
diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_gmrid_manager.c b/drivers/gpu/drm/vmwgfx/vmwgfx_gmrid_manager.c
index c1900f4390a4..d2b03d4a3c86 100644
--- a/drivers/gpu/drm/vmwgfx/vmwgfx_gmrid_manager.c
+++ b/drivers/gpu/drm/vmwgfx/vmwgfx_gmrid_manager.c
@@ -121,7 +121,7 @@ static int vmw_gmrid_man_init(struct ttm_mem_type_manager *man,
 	struct vmwgfx_gmrid_man *gman =
 		kzalloc(sizeof(*gman), GFP_KERNEL);
 
-	if (unlikely(gman == NULL))
+	if (unlikely(!gman))
 		return -ENOMEM;
 
 	spin_lock_init(&gman->lock);
diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_kms.c b/drivers/gpu/drm/vmwgfx/vmwgfx_kms.c
index 3d94ea67a825..61e06f0e8cd3 100644
--- a/drivers/gpu/drm/vmwgfx/vmwgfx_kms.c
+++ b/drivers/gpu/drm/vmwgfx/vmwgfx_kms.c
@@ -384,6 +384,12 @@ vmw_du_cursor_plane_atomic_update(struct drm_plane *plane,
 
 	hotspot_x = du->hotspot_x;
 	hotspot_y = du->hotspot_y;
+
+	if (plane->fb) {
+		hotspot_x += plane->fb->hot_x;
+		hotspot_y += plane->fb->hot_y;
+	}
+
 	du->cursor_surface = vps->surf;
 	du->cursor_dmabuf = vps->dmabuf;
 
@@ -411,6 +417,9 @@ vmw_du_cursor_plane_atomic_update(struct drm_plane *plane,
 		vmw_cursor_update_position(dev_priv, true,
 					   du->cursor_x + hotspot_x,
 					   du->cursor_y + hotspot_y);
+
+		du->core_hotspot_x = hotspot_x - du->hotspot_x;
+		du->core_hotspot_y = hotspot_y - du->hotspot_y;
 	} else {
 		DRM_ERROR("Failed to update cursor image\n");
 	}
diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_mob.c b/drivers/gpu/drm/vmwgfx/vmwgfx_mob.c
index 941bcfd131ff..b17f08fc50d3 100644
--- a/drivers/gpu/drm/vmwgfx/vmwgfx_mob.c
+++ b/drivers/gpu/drm/vmwgfx/vmwgfx_mob.c
@@ -320,14 +320,14 @@ int vmw_otables_setup(struct vmw_private *dev_priv)
 
 	if (dev_priv->has_dx) {
 		*otables = kmemdup(dx_tables, sizeof(dx_tables), GFP_KERNEL);
-		if (*otables == NULL)
+		if (!(*otables))
 			return -ENOMEM;
 
 		dev_priv->otable_batch.num_otables = ARRAY_SIZE(dx_tables);
 	} else {
 		*otables = kmemdup(pre_dx_tables, sizeof(pre_dx_tables),
 				   GFP_KERNEL);
-		if (*otables == NULL)
+		if (!(*otables))
 			return -ENOMEM;
 
 		dev_priv->otable_batch.num_otables = ARRAY_SIZE(pre_dx_tables);
@@ -407,7 +407,7 @@ struct vmw_mob *vmw_mob_create(unsigned long data_pages)
 {
 	struct vmw_mob *mob = kzalloc(sizeof(*mob), GFP_KERNEL);
 
-	if (unlikely(mob == NULL))
+	if (unlikely(!mob))
 		return NULL;
 
 	mob->num_pages = vmw_mob_calculate_pt_pages(data_pages);
diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_msg.c b/drivers/gpu/drm/vmwgfx/vmwgfx_msg.c
index 6063c9636d4a..97000996b8dc 100644
--- a/drivers/gpu/drm/vmwgfx/vmwgfx_msg.c
+++ b/drivers/gpu/drm/vmwgfx/vmwgfx_msg.c
@@ -244,7 +244,7 @@ static int vmw_recv_msg(struct rpc_channel *channel, void **msg,
 
 		reply_len = ebx;
 		reply     = kzalloc(reply_len + 1, GFP_KERNEL);
-		if (reply == NULL) {
+		if (!reply) {
 			DRM_ERROR("Cannot allocate memory for reply\n");
 			return -ENOMEM;
 		}
@@ -340,7 +340,7 @@ int vmw_host_get_guestinfo(const char *guest_info_param,
 
 	msg_len = strlen(guest_info_param) + strlen("info-get ") + 1;
 	msg = kzalloc(msg_len, GFP_KERNEL);
-	if (msg == NULL) {
+	if (!msg) {
 		DRM_ERROR("Cannot allocate memory to get %s", guest_info_param);
 		return -ENOMEM;
 	}
@@ -400,7 +400,7 @@ int vmw_host_log(const char *log)
 
 	msg_len = strlen(log) + strlen("log ") + 1;
 	msg = kzalloc(msg_len, GFP_KERNEL);
-	if (msg == NULL) {
+	if (!msg) {
 		DRM_ERROR("Cannot allocate memory for log message\n");
 		return -ENOMEM;
 	}
diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_resource.c b/drivers/gpu/drm/vmwgfx/vmwgfx_resource.c
index 7d591f653dfa..a96f90f017d1 100644
--- a/drivers/gpu/drm/vmwgfx/vmwgfx_resource.c
+++ b/drivers/gpu/drm/vmwgfx/vmwgfx_resource.c
@@ -446,7 +446,7 @@ int vmw_user_dmabuf_alloc(struct vmw_private *dev_priv,
 	int ret;
 
 	user_bo = kzalloc(sizeof(*user_bo), GFP_KERNEL);
-	if (unlikely(user_bo == NULL)) {
+	if (unlikely(!user_bo)) {
 		DRM_ERROR("Failed to allocate a buffer.\n");
 		return -ENOMEM;
 	}
@@ -836,7 +836,7 @@ static int vmw_resource_buf_alloc(struct vmw_resource *res,
 	}
 
 	backup = kzalloc(sizeof(*backup), GFP_KERNEL);
-	if (unlikely(backup == NULL))
+	if (unlikely(!backup))
 		return -ENOMEM;
 
 	ret = vmw_dmabuf_init(res->dev_priv, backup, res->backup_size,
diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_shader.c b/drivers/gpu/drm/vmwgfx/vmwgfx_shader.c
index 68f135c5b0d8..9b832f136813 100644
--- a/drivers/gpu/drm/vmwgfx/vmwgfx_shader.c
+++ b/drivers/gpu/drm/vmwgfx/vmwgfx_shader.c
@@ -751,7 +751,7 @@ static int vmw_user_shader_alloc(struct vmw_private *dev_priv,
 	}
 
 	ushader = kzalloc(sizeof(*ushader), GFP_KERNEL);
-	if (unlikely(ushader == NULL)) {
+	if (unlikely(!ushader)) {
 		ttm_mem_global_free(vmw_mem_glob(dev_priv),
 				    vmw_user_shader_size);
 		ret = -ENOMEM;
@@ -821,7 +821,7 @@ static struct vmw_resource *vmw_shader_alloc(struct vmw_private *dev_priv,
 	}
 
 	shader = kzalloc(sizeof(*shader), GFP_KERNEL);
-	if (unlikely(shader == NULL)) {
+	if (unlikely(!shader)) {
 		ttm_mem_global_free(vmw_mem_glob(dev_priv),
 				    vmw_shader_size);
 		ret = -ENOMEM;
@@ -981,7 +981,7 @@ int vmw_compat_shader_add(struct vmw_private *dev_priv,
 
 	/* Allocate and pin a DMA buffer */
 	buf = kzalloc(sizeof(*buf), GFP_KERNEL);
-	if (unlikely(buf == NULL))
+	if (unlikely(!buf))
 		return -ENOMEM;
 
 	ret = vmw_dmabuf_init(dev_priv, buf, size, &vmw_sys_ne_placement,
diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_stdu.c b/drivers/gpu/drm/vmwgfx/vmwgfx_stdu.c
index 50be1f034f9e..5284e8d2f7ba 100644
--- a/drivers/gpu/drm/vmwgfx/vmwgfx_stdu.c
+++ b/drivers/gpu/drm/vmwgfx/vmwgfx_stdu.c
@@ -1640,8 +1640,8 @@ int vmw_kms_stdu_init_display(struct vmw_private *dev_priv)
 		 * something arbitrarily large and we will reject any layout
 		 * that doesn't fit prim_bb_mem later
 		 */
-		dev->mode_config.max_width = 16384;
-		dev->mode_config.max_height = 16384;
+		dev->mode_config.max_width = 8192;
+		dev->mode_config.max_height = 8192;
 	}
 
 	vmw_kms_create_implicit_placement_property(dev_priv, false);
diff --git a/drivers/gpu/host1x/dev.c b/drivers/gpu/host1x/dev.c
index 2c58a390123a..778272514164 100644
--- a/drivers/gpu/host1x/dev.c
+++ b/drivers/gpu/host1x/dev.c
@@ -186,8 +186,13 @@ static int host1x_probe(struct platform_device *pdev)
 			return -ENOMEM;
 
 		err = iommu_attach_device(host->domain, &pdev->dev);
-		if (err)
+		if (err == -ENODEV) {
+			iommu_domain_free(host->domain);
+			host->domain = NULL;
+			goto skip_iommu;
+		} else if (err) {
 			goto fail_free_domain;
+		}
 
 		geometry = &host->domain->geometry;
 
@@ -198,6 +203,7 @@ static int host1x_probe(struct platform_device *pdev)
 		host->iova_end = geometry->aperture_end;
 	}
 
+skip_iommu:
 	err = host1x_channel_list_init(&host->channel_list,
 				       host->info->nb_channels);
 	if (err) {
diff --git a/drivers/hid/hid-core.c b/drivers/hid/hid-core.c
index 6fd01a692197..9017dcc14502 100644
--- a/drivers/hid/hid-core.c
+++ b/drivers/hid/hid-core.c
@@ -2216,6 +2216,7 @@ static const struct hid_device_id hid_have_special_driver[] = {
 #if IS_ENABLED(CONFIG_HID_ORTEK)
 	{ HID_USB_DEVICE(USB_VENDOR_ID_ORTEK, USB_DEVICE_ID_ORTEK_PKB1700) },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_ORTEK, USB_DEVICE_ID_ORTEK_WKB2000) },
+	{ HID_USB_DEVICE(USB_VENDOR_ID_ORTEK, USB_DEVICE_ID_ORTEK_IHOME_IMAC_A210S) },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_SKYCABLE, USB_DEVICE_ID_SKYCABLE_WIRELESS_PRESENTER) },
 #endif
 #if IS_ENABLED(CONFIG_HID_PANTHERLORD)
diff --git a/drivers/hid/hid-ids.h b/drivers/hid/hid-ids.h
index 3d911bfd91cf..c9ba4c6db74c 100644
--- a/drivers/hid/hid-ids.h
+++ b/drivers/hid/hid-ids.h
@@ -824,6 +824,7 @@
 #define USB_VENDOR_ID_ORTEK		0x05a4
 #define USB_DEVICE_ID_ORTEK_PKB1700	0x1700
 #define USB_DEVICE_ID_ORTEK_WKB2000	0x2000
+#define USB_DEVICE_ID_ORTEK_IHOME_IMAC_A210S	0x8003
 
 #define USB_VENDOR_ID_PLANTRONICS	0x047f
 
diff --git a/drivers/hid/hid-logitech-hidpp.c b/drivers/hid/hid-logitech-hidpp.c
index 41b39464ded8..501e16a9227d 100644
--- a/drivers/hid/hid-logitech-hidpp.c
+++ b/drivers/hid/hid-logitech-hidpp.c
@@ -2732,6 +2732,9 @@ static int hidpp_initialize_battery(struct hidpp_device *hidpp)
 				     hidpp_battery_props,
 				     sizeof(hidpp_battery_props),
 				     GFP_KERNEL);
+	if (!battery_props)
+		return -ENOMEM;
+
 	num_battery_props = ARRAY_SIZE(hidpp_battery_props) - 2;
 
 	if (hidpp->capabilities & HIDPP_CAPABILITY_BATTERY_MILEAGE)
diff --git a/drivers/hid/hid-multitouch.c b/drivers/hid/hid-multitouch.c
index f3e35e7a189d..aff20f4b6d97 100644
--- a/drivers/hid/hid-multitouch.c
+++ b/drivers/hid/hid-multitouch.c
@@ -620,16 +620,6 @@ static int mt_touch_input_mapping(struct hid_device *hdev, struct hid_input *hi,
 	return 0;
 }
 
-static int mt_touch_input_mapped(struct hid_device *hdev, struct hid_input *hi,
-		struct hid_field *field, struct hid_usage *usage,
-		unsigned long **bit, int *max)
-{
-	if (usage->type == EV_KEY || usage->type == EV_ABS)
-		set_bit(usage->type, hi->input->evbit);
-
-	return -1;
-}
-
 static int mt_compute_slot(struct mt_device *td, struct input_dev *input)
 {
 	__s32 quirks = td->mtclass.quirks;
@@ -969,8 +959,10 @@ static int mt_input_mapped(struct hid_device *hdev, struct hid_input *hi,
 		return 0;
 
 	if (field->application == HID_DG_TOUCHSCREEN ||
-	    field->application == HID_DG_TOUCHPAD)
-		return mt_touch_input_mapped(hdev, hi, field, usage, bit, max);
+	    field->application == HID_DG_TOUCHPAD) {
+		/* We own these mappings, tell hid-input to ignore them */
+		return -1;
+	}
 
 	/* let hid-core decide for the others */
 	return 0;
diff --git a/drivers/hid/hid-ortek.c b/drivers/hid/hid-ortek.c
index 6620f15fec22..8783a064cdcf 100644
--- a/drivers/hid/hid-ortek.c
+++ b/drivers/hid/hid-ortek.c
@@ -5,6 +5,7 @@
  *
  *    Ortek PKB-1700
  *    Ortek WKB-2000
+ *    iHome IMAC-A210S
  *    Skycable wireless presenter
  *
  *  Copyright (c) 2010 Johnathon Harris <jmharris@gmail.com>
@@ -28,10 +29,10 @@ static __u8 *ortek_report_fixup(struct hid_device *hdev, __u8 *rdesc,
 		unsigned int *rsize)
 {
 	if (*rsize >= 56 && rdesc[54] == 0x25 && rdesc[55] == 0x01) {
-		hid_info(hdev, "Fixing up logical minimum in report descriptor (Ortek)\n");
+		hid_info(hdev, "Fixing up logical maximum in report descriptor (Ortek)\n");
 		rdesc[55] = 0x92;
 	} else if (*rsize >= 54 && rdesc[52] == 0x25 && rdesc[53] == 0x01) {
-		hid_info(hdev, "Fixing up logical minimum in report descriptor (Skycable)\n");
+		hid_info(hdev, "Fixing up logical maximum in report descriptor (Skycable)\n");
 		rdesc[53] = 0x65;
 	}
 	return rdesc;
@@ -40,6 +41,7 @@ static __u8 *ortek_report_fixup(struct hid_device *hdev, __u8 *rdesc,
 static const struct hid_device_id ortek_devices[] = {
 	{ HID_USB_DEVICE(USB_VENDOR_ID_ORTEK, USB_DEVICE_ID_ORTEK_PKB1700) },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_ORTEK, USB_DEVICE_ID_ORTEK_WKB2000) },
+	{ HID_USB_DEVICE(USB_VENDOR_ID_ORTEK, USB_DEVICE_ID_ORTEK_IHOME_IMAC_A210S) },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_SKYCABLE, USB_DEVICE_ID_SKYCABLE_WIRELESS_PRESENTER) },
 	{ }
 };
diff --git a/drivers/hid/usbhid/hid-core.c b/drivers/hid/usbhid/hid-core.c
index 76013eb5cb7f..c008847e0b20 100644
--- a/drivers/hid/usbhid/hid-core.c
+++ b/drivers/hid/usbhid/hid-core.c
@@ -680,18 +680,21 @@ static int usbhid_open(struct hid_device *hid)
 	struct usbhid_device *usbhid = hid->driver_data;
 	int res;
 
+	set_bit(HID_OPENED, &usbhid->iofl);
+
 	if (hid->quirks & HID_QUIRK_ALWAYS_POLL)
 		return 0;
 
 	res = usb_autopm_get_interface(usbhid->intf);
 	/* the device must be awake to reliably request remote wakeup */
-	if (res < 0)
+	if (res < 0) {
+		clear_bit(HID_OPENED, &usbhid->iofl);
 		return -EIO;
+	}
 
 	usbhid->intf->needs_remote_wakeup = 1;
 
 	set_bit(HID_RESUME_RUNNING, &usbhid->iofl);
-	set_bit(HID_OPENED, &usbhid->iofl);
 	set_bit(HID_IN_POLLING, &usbhid->iofl);
 
 	res = hid_start_in(hid);
@@ -727,19 +730,20 @@ static void usbhid_close(struct hid_device *hid)
 {
 	struct usbhid_device *usbhid = hid->driver_data;
 
-	if (hid->quirks & HID_QUIRK_ALWAYS_POLL)
-		return;
-
 	/*
 	 * Make sure we don't restart data acquisition due to
 	 * a resumption we no longer care about by avoiding racing
 	 * with hid_start_in().
 	 */
 	spin_lock_irq(&usbhid->lock);
-	clear_bit(HID_IN_POLLING, &usbhid->iofl);
 	clear_bit(HID_OPENED, &usbhid->iofl);
+	if (!(hid->quirks & HID_QUIRK_ALWAYS_POLL))
+		clear_bit(HID_IN_POLLING, &usbhid->iofl);
 	spin_unlock_irq(&usbhid->lock);
 
+	if (hid->quirks & HID_QUIRK_ALWAYS_POLL)
+		return;
+
 	hid_cancel_delayed_stuff(usbhid);
 	usb_kill_urb(usbhid->urbin);
 	usbhid->intf->needs_remote_wakeup = 0;
diff --git a/drivers/hv/channel.c b/drivers/hv/channel.c
index e9bf0bb87ac4..e57cc40cb768 100644
--- a/drivers/hv/channel.c
+++ b/drivers/hv/channel.c
@@ -606,6 +606,8 @@ static int vmbus_close_internal(struct vmbus_channel *channel)
 		get_order(channel->ringbuffer_pagecount * PAGE_SIZE));
 
 out:
+	/* re-enable tasklet for use on re-open */
+	tasklet_enable(&channel->callback_event);
 	return ret;
 }
 
diff --git a/drivers/hwmon/applesmc.c b/drivers/hwmon/applesmc.c
index 0af7fd311979..76c34f4fde13 100644
--- a/drivers/hwmon/applesmc.c
+++ b/drivers/hwmon/applesmc.c
@@ -566,6 +566,8 @@ static int applesmc_init_smcreg_try(void)
 	if (ret)
 		return ret;
 	s->fan_count = tmp[0];
+	if (s->fan_count > 10)
+		s->fan_count = 10;
 
 	ret = applesmc_get_lower_bound(&s->temp_begin, "T");
 	if (ret)
@@ -811,7 +813,8 @@ static ssize_t applesmc_show_fan_speed(struct device *dev,
 	char newkey[5];
 	u8 buffer[2];
 
-	sprintf(newkey, fan_speed_fmt[to_option(attr)], to_index(attr));
+	scnprintf(newkey, sizeof(newkey), fan_speed_fmt[to_option(attr)],
+		  to_index(attr));
 
 	ret = applesmc_read_key(newkey, buffer, 2);
 	speed = ((buffer[0] << 8 | buffer[1]) >> 2);
@@ -834,7 +837,8 @@ static ssize_t applesmc_store_fan_speed(struct device *dev,
 	if (kstrtoul(sysfsbuf, 10, &speed) < 0 || speed >= 0x4000)
 		return -EINVAL;		/* Bigger than a 14-bit value */
 
-	sprintf(newkey, fan_speed_fmt[to_option(attr)], to_index(attr));
+	scnprintf(newkey, sizeof(newkey), fan_speed_fmt[to_option(attr)],
+		  to_index(attr));
 
 	buffer[0] = (speed >> 6) & 0xff;
 	buffer[1] = (speed << 2) & 0xff;
@@ -903,7 +907,7 @@ static ssize_t applesmc_show_fan_position(struct device *dev,
 	char newkey[5];
 	u8 buffer[17];
 
-	sprintf(newkey, FAN_ID_FMT, to_index(attr));
+	scnprintf(newkey, sizeof(newkey), FAN_ID_FMT, to_index(attr));
 
 	ret = applesmc_read_key(newkey, buffer, 16);
 	buffer[16] = 0;
@@ -1116,7 +1120,8 @@ static int applesmc_create_nodes(struct applesmc_node_group *groups, int num)
 		}
 		for (i = 0; i < num; i++) {
 			node = &grp->nodes[i];
-			sprintf(node->name, grp->format, i + 1);
+			scnprintf(node->name, sizeof(node->name), grp->format,
+				  i + 1);
 			node->sda.index = (grp->option << 16) | (i & 0xffff);
 			node->sda.dev_attr.show = grp->show;
 			node->sda.dev_attr.store = grp->store;
diff --git a/drivers/i2c/Makefile b/drivers/i2c/Makefile
index 45095b3d16a9..7bb65a4369e1 100644
--- a/drivers/i2c/Makefile
+++ b/drivers/i2c/Makefile
@@ -4,6 +4,11 @@
 
 obj-$(CONFIG_I2C_BOARDINFO)	+= i2c-boardinfo.o
 obj-$(CONFIG_I2C)		+= i2c-core.o
+i2c-core-objs 			:= i2c-core-base.o i2c-core-smbus.o
+i2c-core-$(CONFIG_ACPI)		+= i2c-core-acpi.o
+i2c-core-$(CONFIG_I2C_SLAVE) 	+= i2c-core-slave.o
+i2c-core-$(CONFIG_OF) 		+= i2c-core-of.o
+
 obj-$(CONFIG_I2C_SMBUS)		+= i2c-smbus.o
 obj-$(CONFIG_I2C_CHARDEV)	+= i2c-dev.o
 obj-$(CONFIG_I2C_MUX)		+= i2c-mux.o
@@ -12,4 +17,4 @@ obj-$(CONFIG_I2C_STUB)		+= i2c-stub.o
 obj-$(CONFIG_I2C_SLAVE_EEPROM)	+= i2c-slave-eeprom.o
 
 ccflags-$(CONFIG_I2C_DEBUG_CORE) := -DDEBUG
-CFLAGS_i2c-core.o := -Wno-deprecated-declarations
+CFLAGS_i2c-core-base.o := -Wno-deprecated-declarations
diff --git a/drivers/i2c/algos/i2c-algo-bit.c b/drivers/i2c/algos/i2c-algo-bit.c
index a8e89df665b9..1147bddb8b2c 100644
--- a/drivers/i2c/algos/i2c-algo-bit.c
+++ b/drivers/i2c/algos/i2c-algo-bit.c
@@ -553,9 +553,16 @@ static int bit_xfer(struct i2c_adapter *i2c_adap,
 		nak_ok = pmsg->flags & I2C_M_IGNORE_NAK;
 		if (!(pmsg->flags & I2C_M_NOSTART)) {
 			if (i) {
-				bit_dbg(3, &i2c_adap->dev, "emitting "
-					"repeated start condition\n");
-				i2c_repstart(adap);
+				if (msgs[i - 1].flags & I2C_M_STOP) {
+					bit_dbg(3, &i2c_adap->dev,
+						"emitting enforced stop/start condition\n");
+					i2c_stop(adap);
+					i2c_start(adap);
+				} else {
+					bit_dbg(3, &i2c_adap->dev,
+						"emitting repeated start condition\n");
+					i2c_repstart(adap);
+				}
 			}
 			ret = bit_doAddress(i2c_adap, pmsg);
 			if ((ret != 0) && !nak_ok) {
diff --git a/drivers/i2c/busses/Kconfig b/drivers/i2c/busses/Kconfig
index 144cbadc7c72..65fa29591d21 100644
--- a/drivers/i2c/busses/Kconfig
+++ b/drivers/i2c/busses/Kconfig
@@ -129,6 +129,8 @@ config I2C_I801
 	    Broxton (SOC)
 	    Lewisburg (PCH)
 	    Gemini Lake (SOC)
+	    Cannon Lake-H (PCH)
+	    Cannon Lake-LP (PCH)
 
 	  This driver can also be built as a module.  If so, the module
 	  will be called i2c-i801.
@@ -326,6 +328,16 @@ config I2C_POWERMAC
 
 comment "I2C system bus drivers (mostly embedded / system-on-chip)"
 
+config I2C_ASPEED
+	tristate "Aspeed I2C Controller"
+	depends on ARCH_ASPEED || COMPILE_TEST
+	help
+	  If you say yes to this option, support will be included for the
+	  Aspeed I2C controller.
+
+	  This driver can also be built as a module.  If so, the module
+	  will be called i2c-aspeed.
+
 config I2C_AT91
 	tristate "Atmel AT91 I2C Two-Wire interface (TWI)"
 	depends on ARCH_AT91
@@ -474,11 +486,22 @@ config I2C_DESIGNWARE_PLATFORM
 	depends on (ACPI && COMMON_CLK) || !ACPI
 	help
 	  If you say yes to this option, support will be included for the
-	  Synopsys DesignWare I2C adapter. Only master mode is supported.
+	  Synopsys DesignWare I2C adapter.
 
 	  This driver can also be built as a module.  If so, the module
 	  will be called i2c-designware-platform.
 
+config I2C_DESIGNWARE_SLAVE
+	bool "Synopsys DesignWare Slave"
+	select I2C_SLAVE
+	depends on I2C_DESIGNWARE_PLATFORM
+	help
+	  If you say yes to this option, support will be included for the
+	  Synopsys DesignWare I2C slave adapter.
+
+	  This is not a standalone module, this module compiles together with
+	  i2c-designware-core.
+
 config I2C_DESIGNWARE_PCI
 	tristate "Synopsys DesignWare PCI"
 	depends on PCI
@@ -960,7 +983,7 @@ config I2C_UNIPHIER_F
 
 config I2C_VERSATILE
 	tristate "ARM Versatile/Realview I2C bus support"
-	depends on ARCH_VERSATILE || ARCH_REALVIEW || ARCH_VEXPRESS || COMPILE_TEST
+	depends on ARCH_MPS2 || ARCH_VERSATILE || ARCH_REALVIEW || ARCH_VEXPRESS || COMPILE_TEST
 	select I2C_ALGOBIT
 	help
 	  Say yes if you want to support the I2C serial bus on ARMs Versatile
@@ -1258,4 +1281,13 @@ config I2C_OPAL
 	  This driver can also be built as a module. If so, the module will be
 	  called as i2c-opal.
 
+config I2C_ZX2967
+	tristate "ZTE ZX2967 I2C support"
+	depends on ARCH_ZX
+	default y
+	help
+	  Selecting this option will add ZX2967 I2C driver.
+	  This driver can also be built as a module. If so, the module will be
+	  called i2c-zx2967.
+
 endmenu
diff --git a/drivers/i2c/busses/Makefile b/drivers/i2c/busses/Makefile
index 30b60855fbcd..1b2fc815a4d8 100644
--- a/drivers/i2c/busses/Makefile
+++ b/drivers/i2c/busses/Makefile
@@ -29,6 +29,7 @@ obj-$(CONFIG_I2C_HYDRA)		+= i2c-hydra.o
 obj-$(CONFIG_I2C_POWERMAC)	+= i2c-powermac.o
 
 # Embedded system I2C/SMBus host controller drivers
+obj-$(CONFIG_I2C_ASPEED)	+= i2c-aspeed.o
 obj-$(CONFIG_I2C_AT91)		+= i2c-at91.o
 obj-$(CONFIG_I2C_AU1550)	+= i2c-au1550.o
 obj-$(CONFIG_I2C_AXXIA)		+= i2c-axxia.o
@@ -40,6 +41,10 @@ obj-$(CONFIG_I2C_CBUS_GPIO)	+= i2c-cbus-gpio.o
 obj-$(CONFIG_I2C_CPM)		+= i2c-cpm.o
 obj-$(CONFIG_I2C_DAVINCI)	+= i2c-davinci.o
 obj-$(CONFIG_I2C_DESIGNWARE_CORE)	+= i2c-designware-core.o
+i2c-designware-core-objs := i2c-designware-common.o i2c-designware-master.o
+ifeq ($(CONFIG_I2C_DESIGNWARE_SLAVE),y)
+i2c-designware-core-objs += i2c-designware-slave.o
+endif
 obj-$(CONFIG_I2C_DESIGNWARE_PLATFORM)	+= i2c-designware-platform.o
 i2c-designware-platform-objs := i2c-designware-platdrv.o
 i2c-designware-platform-$(CONFIG_I2C_DESIGNWARE_BAYTRAIL) += i2c-designware-baytrail.o
@@ -102,6 +107,7 @@ obj-$(CONFIG_I2C_XILINX)	+= i2c-xiic.o
 obj-$(CONFIG_I2C_XLR)		+= i2c-xlr.o
 obj-$(CONFIG_I2C_XLP9XX)	+= i2c-xlp9xx.o
 obj-$(CONFIG_I2C_RCAR)		+= i2c-rcar.o
+obj-$(CONFIG_I2C_ZX2967)	+= i2c-zx2967.o
 
 # External I2C/SMBus adapter drivers
 obj-$(CONFIG_I2C_DIOLAN_U2C)	+= i2c-diolan-u2c.o
diff --git a/drivers/i2c/busses/i2c-aspeed.c b/drivers/i2c/busses/i2c-aspeed.c
new file mode 100644
index 000000000000..f19348328a71
--- /dev/null
+++ b/drivers/i2c/busses/i2c-aspeed.c
@@ -0,0 +1,891 @@
+/*
+ *  Aspeed 24XX/25XX I2C Controller.
+ *
+ *  Copyright (C) 2012-2017 ASPEED Technology Inc.
+ *  Copyright 2017 IBM Corporation
+ *  Copyright 2017 Google, Inc.
+ *
+ *  This program is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License version 2 as
+ *  published by the Free Software Foundation.
+ */
+
+#include <linux/clk.h>
+#include <linux/completion.h>
+#include <linux/err.h>
+#include <linux/errno.h>
+#include <linux/i2c.h>
+#include <linux/init.h>
+#include <linux/interrupt.h>
+#include <linux/io.h>
+#include <linux/irq.h>
+#include <linux/irqchip/chained_irq.h>
+#include <linux/irqdomain.h>
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/of_address.h>
+#include <linux/of_irq.h>
+#include <linux/of_platform.h>
+#include <linux/platform_device.h>
+#include <linux/slab.h>
+
+/* I2C Register */
+#define ASPEED_I2C_FUN_CTRL_REG				0x00
+#define ASPEED_I2C_AC_TIMING_REG1			0x04
+#define ASPEED_I2C_AC_TIMING_REG2			0x08
+#define ASPEED_I2C_INTR_CTRL_REG			0x0c
+#define ASPEED_I2C_INTR_STS_REG				0x10
+#define ASPEED_I2C_CMD_REG				0x14
+#define ASPEED_I2C_DEV_ADDR_REG				0x18
+#define ASPEED_I2C_BYTE_BUF_REG				0x20
+
+/* Global Register Definition */
+/* 0x00 : I2C Interrupt Status Register  */
+/* 0x08 : I2C Interrupt Target Assignment  */
+
+/* Device Register Definition */
+/* 0x00 : I2CD Function Control Register  */
+#define ASPEED_I2CD_MULTI_MASTER_DIS			BIT(15)
+#define ASPEED_I2CD_SDA_DRIVE_1T_EN			BIT(8)
+#define ASPEED_I2CD_M_SDA_DRIVE_1T_EN			BIT(7)
+#define ASPEED_I2CD_M_HIGH_SPEED_EN			BIT(6)
+#define ASPEED_I2CD_SLAVE_EN				BIT(1)
+#define ASPEED_I2CD_MASTER_EN				BIT(0)
+
+/* 0x04 : I2CD Clock and AC Timing Control Register #1 */
+#define ASPEED_I2CD_TIME_SCL_HIGH_SHIFT			16
+#define ASPEED_I2CD_TIME_SCL_HIGH_MASK			GENMASK(19, 16)
+#define ASPEED_I2CD_TIME_SCL_LOW_SHIFT			12
+#define ASPEED_I2CD_TIME_SCL_LOW_MASK			GENMASK(15, 12)
+#define ASPEED_I2CD_TIME_BASE_DIVISOR_MASK		GENMASK(3, 0)
+#define ASPEED_I2CD_TIME_SCL_REG_MAX			GENMASK(3, 0)
+/* 0x08 : I2CD Clock and AC Timing Control Register #2 */
+#define ASPEED_NO_TIMEOUT_CTRL				0
+
+/* 0x0c : I2CD Interrupt Control Register &
+ * 0x10 : I2CD Interrupt Status Register
+ *
+ * These share bit definitions, so use the same values for the enable &
+ * status bits.
+ */
+#define ASPEED_I2CD_INTR_SDA_DL_TIMEOUT			BIT(14)
+#define ASPEED_I2CD_INTR_BUS_RECOVER_DONE		BIT(13)
+#define ASPEED_I2CD_INTR_SLAVE_MATCH			BIT(7)
+#define ASPEED_I2CD_INTR_SCL_TIMEOUT			BIT(6)
+#define ASPEED_I2CD_INTR_ABNORMAL			BIT(5)
+#define ASPEED_I2CD_INTR_NORMAL_STOP			BIT(4)
+#define ASPEED_I2CD_INTR_ARBIT_LOSS			BIT(3)
+#define ASPEED_I2CD_INTR_RX_DONE			BIT(2)
+#define ASPEED_I2CD_INTR_TX_NAK				BIT(1)
+#define ASPEED_I2CD_INTR_TX_ACK				BIT(0)
+#define ASPEED_I2CD_INTR_ALL						       \
+		(ASPEED_I2CD_INTR_SDA_DL_TIMEOUT |			       \
+		 ASPEED_I2CD_INTR_BUS_RECOVER_DONE |			       \
+		 ASPEED_I2CD_INTR_SCL_TIMEOUT |				       \
+		 ASPEED_I2CD_INTR_ABNORMAL |				       \
+		 ASPEED_I2CD_INTR_NORMAL_STOP |				       \
+		 ASPEED_I2CD_INTR_ARBIT_LOSS |				       \
+		 ASPEED_I2CD_INTR_RX_DONE |				       \
+		 ASPEED_I2CD_INTR_TX_NAK |				       \
+		 ASPEED_I2CD_INTR_TX_ACK)
+
+/* 0x14 : I2CD Command/Status Register   */
+#define ASPEED_I2CD_SCL_LINE_STS			BIT(18)
+#define ASPEED_I2CD_SDA_LINE_STS			BIT(17)
+#define ASPEED_I2CD_BUS_BUSY_STS			BIT(16)
+#define ASPEED_I2CD_BUS_RECOVER_CMD			BIT(11)
+
+/* Command Bit */
+#define ASPEED_I2CD_M_STOP_CMD				BIT(5)
+#define ASPEED_I2CD_M_S_RX_CMD_LAST			BIT(4)
+#define ASPEED_I2CD_M_RX_CMD				BIT(3)
+#define ASPEED_I2CD_S_TX_CMD				BIT(2)
+#define ASPEED_I2CD_M_TX_CMD				BIT(1)
+#define ASPEED_I2CD_M_START_CMD				BIT(0)
+
+/* 0x18 : I2CD Slave Device Address Register   */
+#define ASPEED_I2CD_DEV_ADDR_MASK			GENMASK(6, 0)
+
+enum aspeed_i2c_master_state {
+	ASPEED_I2C_MASTER_START,
+	ASPEED_I2C_MASTER_TX_FIRST,
+	ASPEED_I2C_MASTER_TX,
+	ASPEED_I2C_MASTER_RX_FIRST,
+	ASPEED_I2C_MASTER_RX,
+	ASPEED_I2C_MASTER_STOP,
+	ASPEED_I2C_MASTER_INACTIVE,
+};
+
+enum aspeed_i2c_slave_state {
+	ASPEED_I2C_SLAVE_START,
+	ASPEED_I2C_SLAVE_READ_REQUESTED,
+	ASPEED_I2C_SLAVE_READ_PROCESSED,
+	ASPEED_I2C_SLAVE_WRITE_REQUESTED,
+	ASPEED_I2C_SLAVE_WRITE_RECEIVED,
+	ASPEED_I2C_SLAVE_STOP,
+};
+
+struct aspeed_i2c_bus {
+	struct i2c_adapter		adap;
+	struct device			*dev;
+	void __iomem			*base;
+	/* Synchronizes I/O mem access to base. */
+	spinlock_t			lock;
+	struct completion		cmd_complete;
+	unsigned long			parent_clk_frequency;
+	u32				bus_frequency;
+	/* Transaction state. */
+	enum aspeed_i2c_master_state	master_state;
+	struct i2c_msg			*msgs;
+	size_t				buf_index;
+	size_t				msgs_index;
+	size_t				msgs_count;
+	bool				send_stop;
+	int				cmd_err;
+	/* Protected only by i2c_lock_bus */
+	int				master_xfer_result;
+#if IS_ENABLED(CONFIG_I2C_SLAVE)
+	struct i2c_client		*slave;
+	enum aspeed_i2c_slave_state	slave_state;
+#endif /* CONFIG_I2C_SLAVE */
+};
+
+static int aspeed_i2c_reset(struct aspeed_i2c_bus *bus);
+
+static int aspeed_i2c_recover_bus(struct aspeed_i2c_bus *bus)
+{
+	unsigned long time_left, flags;
+	int ret = 0;
+	u32 command;
+
+	spin_lock_irqsave(&bus->lock, flags);
+	command = readl(bus->base + ASPEED_I2C_CMD_REG);
+
+	if (command & ASPEED_I2CD_SDA_LINE_STS) {
+		/* Bus is idle: no recovery needed. */
+		if (command & ASPEED_I2CD_SCL_LINE_STS)
+			goto out;
+		dev_dbg(bus->dev, "SCL hung (state %x), attempting recovery\n",
+			command);
+
+		reinit_completion(&bus->cmd_complete);
+		writel(ASPEED_I2CD_M_STOP_CMD, bus->base + ASPEED_I2C_CMD_REG);
+		spin_unlock_irqrestore(&bus->lock, flags);
+
+		time_left = wait_for_completion_timeout(
+				&bus->cmd_complete, bus->adap.timeout);
+
+		spin_lock_irqsave(&bus->lock, flags);
+		if (time_left == 0)
+			goto reset_out;
+		else if (bus->cmd_err)
+			goto reset_out;
+		/* Recovery failed. */
+		else if (!(readl(bus->base + ASPEED_I2C_CMD_REG) &
+			   ASPEED_I2CD_SCL_LINE_STS))
+			goto reset_out;
+	/* Bus error. */
+	} else {
+		dev_dbg(bus->dev, "SDA hung (state %x), attempting recovery\n",
+			command);
+
+		reinit_completion(&bus->cmd_complete);
+		/* Writes 1 to 8 SCL clock cycles until SDA is released. */
+		writel(ASPEED_I2CD_BUS_RECOVER_CMD,
+		       bus->base + ASPEED_I2C_CMD_REG);
+		spin_unlock_irqrestore(&bus->lock, flags);
+
+		time_left = wait_for_completion_timeout(
+				&bus->cmd_complete, bus->adap.timeout);
+
+		spin_lock_irqsave(&bus->lock, flags);
+		if (time_left == 0)
+			goto reset_out;
+		else if (bus->cmd_err)
+			goto reset_out;
+		/* Recovery failed. */
+		else if (!(readl(bus->base + ASPEED_I2C_CMD_REG) &
+			   ASPEED_I2CD_SDA_LINE_STS))
+			goto reset_out;
+	}
+
+out:
+	spin_unlock_irqrestore(&bus->lock, flags);
+
+	return ret;
+
+reset_out:
+	spin_unlock_irqrestore(&bus->lock, flags);
+
+	return aspeed_i2c_reset(bus);
+}
+
+#if IS_ENABLED(CONFIG_I2C_SLAVE)
+static bool aspeed_i2c_slave_irq(struct aspeed_i2c_bus *bus)
+{
+	u32 command, irq_status, status_ack = 0;
+	struct i2c_client *slave = bus->slave;
+	bool irq_handled = true;
+	u8 value;
+
+	spin_lock(&bus->lock);
+	if (!slave) {
+		irq_handled = false;
+		goto out;
+	}
+
+	command = readl(bus->base + ASPEED_I2C_CMD_REG);
+	irq_status = readl(bus->base + ASPEED_I2C_INTR_STS_REG);
+
+	/* Slave was requested, restart state machine. */
+	if (irq_status & ASPEED_I2CD_INTR_SLAVE_MATCH) {
+		status_ack |= ASPEED_I2CD_INTR_SLAVE_MATCH;
+		bus->slave_state = ASPEED_I2C_SLAVE_START;
+	}
+
+	/* Slave is not currently active, irq was for someone else. */
+	if (bus->slave_state == ASPEED_I2C_SLAVE_STOP) {
+		irq_handled = false;
+		goto out;
+	}
+
+	dev_dbg(bus->dev, "slave irq status 0x%08x, cmd 0x%08x\n",
+		irq_status, command);
+
+	/* Slave was sent something. */
+	if (irq_status & ASPEED_I2CD_INTR_RX_DONE) {
+		value = readl(bus->base + ASPEED_I2C_BYTE_BUF_REG) >> 8;
+		/* Handle address frame. */
+		if (bus->slave_state == ASPEED_I2C_SLAVE_START) {
+			if (value & 0x1)
+				bus->slave_state =
+						ASPEED_I2C_SLAVE_READ_REQUESTED;
+			else
+				bus->slave_state =
+						ASPEED_I2C_SLAVE_WRITE_REQUESTED;
+		}
+		status_ack |= ASPEED_I2CD_INTR_RX_DONE;
+	}
+
+	/* Slave was asked to stop. */
+	if (irq_status & ASPEED_I2CD_INTR_NORMAL_STOP) {
+		status_ack |= ASPEED_I2CD_INTR_NORMAL_STOP;
+		bus->slave_state = ASPEED_I2C_SLAVE_STOP;
+	}
+	if (irq_status & ASPEED_I2CD_INTR_TX_NAK) {
+		status_ack |= ASPEED_I2CD_INTR_TX_NAK;
+		bus->slave_state = ASPEED_I2C_SLAVE_STOP;
+	}
+
+	switch (bus->slave_state) {
+	case ASPEED_I2C_SLAVE_READ_REQUESTED:
+		if (irq_status & ASPEED_I2CD_INTR_TX_ACK)
+			dev_err(bus->dev, "Unexpected ACK on read request.\n");
+		bus->slave_state = ASPEED_I2C_SLAVE_READ_PROCESSED;
+
+		i2c_slave_event(slave, I2C_SLAVE_READ_REQUESTED, &value);
+		writel(value, bus->base + ASPEED_I2C_BYTE_BUF_REG);
+		writel(ASPEED_I2CD_S_TX_CMD, bus->base + ASPEED_I2C_CMD_REG);
+		break;
+	case ASPEED_I2C_SLAVE_READ_PROCESSED:
+		status_ack |= ASPEED_I2CD_INTR_TX_ACK;
+		if (!(irq_status & ASPEED_I2CD_INTR_TX_ACK))
+			dev_err(bus->dev,
+				"Expected ACK after processed read.\n");
+		i2c_slave_event(slave, I2C_SLAVE_READ_PROCESSED, &value);
+		writel(value, bus->base + ASPEED_I2C_BYTE_BUF_REG);
+		writel(ASPEED_I2CD_S_TX_CMD, bus->base + ASPEED_I2C_CMD_REG);
+		break;
+	case ASPEED_I2C_SLAVE_WRITE_REQUESTED:
+		bus->slave_state = ASPEED_I2C_SLAVE_WRITE_RECEIVED;
+		i2c_slave_event(slave, I2C_SLAVE_WRITE_REQUESTED, &value);
+		break;
+	case ASPEED_I2C_SLAVE_WRITE_RECEIVED:
+		i2c_slave_event(slave, I2C_SLAVE_WRITE_RECEIVED, &value);
+		break;
+	case ASPEED_I2C_SLAVE_STOP:
+		i2c_slave_event(slave, I2C_SLAVE_STOP, &value);
+		break;
+	default:
+		dev_err(bus->dev, "unhandled slave_state: %d\n",
+			bus->slave_state);
+		break;
+	}
+
+	if (status_ack != irq_status)
+		dev_err(bus->dev,
+			"irq handled != irq. expected %x, but was %x\n",
+			irq_status, status_ack);
+	writel(status_ack, bus->base + ASPEED_I2C_INTR_STS_REG);
+
+out:
+	spin_unlock(&bus->lock);
+	return irq_handled;
+}
+#endif /* CONFIG_I2C_SLAVE */
+
+/* precondition: bus.lock has been acquired. */
+static void aspeed_i2c_do_start(struct aspeed_i2c_bus *bus)
+{
+	u32 command = ASPEED_I2CD_M_START_CMD | ASPEED_I2CD_M_TX_CMD;
+	struct i2c_msg *msg = &bus->msgs[bus->msgs_index];
+	u8 slave_addr = msg->addr << 1;
+
+	bus->master_state = ASPEED_I2C_MASTER_START;
+	bus->buf_index = 0;
+
+	if (msg->flags & I2C_M_RD) {
+		slave_addr |= 1;
+		command |= ASPEED_I2CD_M_RX_CMD;
+		/* Need to let the hardware know to NACK after RX. */
+		if (msg->len == 1 && !(msg->flags & I2C_M_RECV_LEN))
+			command |= ASPEED_I2CD_M_S_RX_CMD_LAST;
+	}
+
+	writel(slave_addr, bus->base + ASPEED_I2C_BYTE_BUF_REG);
+	writel(command, bus->base + ASPEED_I2C_CMD_REG);
+}
+
+/* precondition: bus.lock has been acquired. */
+static void aspeed_i2c_do_stop(struct aspeed_i2c_bus *bus)
+{
+	bus->master_state = ASPEED_I2C_MASTER_STOP;
+	writel(ASPEED_I2CD_M_STOP_CMD, bus->base + ASPEED_I2C_CMD_REG);
+}
+
+/* precondition: bus.lock has been acquired. */
+static void aspeed_i2c_next_msg_or_stop(struct aspeed_i2c_bus *bus)
+{
+	if (bus->msgs_index + 1 < bus->msgs_count) {
+		bus->msgs_index++;
+		aspeed_i2c_do_start(bus);
+	} else {
+		aspeed_i2c_do_stop(bus);
+	}
+}
+
+static int aspeed_i2c_is_irq_error(u32 irq_status)
+{
+	if (irq_status & ASPEED_I2CD_INTR_ARBIT_LOSS)
+		return -EAGAIN;
+	if (irq_status & (ASPEED_I2CD_INTR_SDA_DL_TIMEOUT |
+			  ASPEED_I2CD_INTR_SCL_TIMEOUT))
+		return -EBUSY;
+	if (irq_status & (ASPEED_I2CD_INTR_ABNORMAL))
+		return -EPROTO;
+
+	return 0;
+}
+
+static bool aspeed_i2c_master_irq(struct aspeed_i2c_bus *bus)
+{
+	u32 irq_status, status_ack = 0, command = 0;
+	struct i2c_msg *msg;
+	u8 recv_byte;
+	int ret;
+
+	spin_lock(&bus->lock);
+	irq_status = readl(bus->base + ASPEED_I2C_INTR_STS_REG);
+	/* Ack all interrupt bits. */
+	writel(irq_status, bus->base + ASPEED_I2C_INTR_STS_REG);
+
+	if (irq_status & ASPEED_I2CD_INTR_BUS_RECOVER_DONE) {
+		bus->master_state = ASPEED_I2C_MASTER_INACTIVE;
+		status_ack |= ASPEED_I2CD_INTR_BUS_RECOVER_DONE;
+		goto out_complete;
+	}
+
+	/*
+	 * We encountered an interrupt that reports an error: the hardware
+	 * should clear the command queue effectively taking us back to the
+	 * INACTIVE state.
+	 */
+	ret = aspeed_i2c_is_irq_error(irq_status);
+	if (ret < 0) {
+		dev_dbg(bus->dev, "received error interrupt: 0x%08x",
+			irq_status);
+		bus->cmd_err = ret;
+		bus->master_state = ASPEED_I2C_MASTER_INACTIVE;
+		goto out_complete;
+	}
+
+	/* We are in an invalid state; reset bus to a known state. */
+	if (!bus->msgs && bus->master_state != ASPEED_I2C_MASTER_STOP) {
+		dev_err(bus->dev, "bus in unknown state");
+		bus->cmd_err = -EIO;
+		aspeed_i2c_do_stop(bus);
+		goto out_no_complete;
+	}
+	msg = &bus->msgs[bus->msgs_index];
+
+	/*
+	 * START is a special case because we still have to handle a subsequent
+	 * TX or RX immediately after we handle it, so we handle it here and
+	 * then update the state and handle the new state below.
+	 */
+	if (bus->master_state == ASPEED_I2C_MASTER_START) {
+		if (unlikely(!(irq_status & ASPEED_I2CD_INTR_TX_ACK))) {
+			pr_devel("no slave present at %02x", msg->addr);
+			status_ack |= ASPEED_I2CD_INTR_TX_NAK;
+			bus->cmd_err = -ENXIO;
+			aspeed_i2c_do_stop(bus);
+			goto out_no_complete;
+		}
+		status_ack |= ASPEED_I2CD_INTR_TX_ACK;
+		if (msg->len == 0) { /* SMBUS_QUICK */
+			aspeed_i2c_do_stop(bus);
+			goto out_no_complete;
+		}
+		if (msg->flags & I2C_M_RD)
+			bus->master_state = ASPEED_I2C_MASTER_RX_FIRST;
+		else
+			bus->master_state = ASPEED_I2C_MASTER_TX_FIRST;
+	}
+
+	switch (bus->master_state) {
+	case ASPEED_I2C_MASTER_TX:
+		if (unlikely(irq_status & ASPEED_I2CD_INTR_TX_NAK)) {
+			dev_dbg(bus->dev, "slave NACKed TX");
+			status_ack |= ASPEED_I2CD_INTR_TX_NAK;
+			goto error_and_stop;
+		} else if (unlikely(!(irq_status & ASPEED_I2CD_INTR_TX_ACK))) {
+			dev_err(bus->dev, "slave failed to ACK TX");
+			goto error_and_stop;
+		}
+		status_ack |= ASPEED_I2CD_INTR_TX_ACK;
+		/* fallthrough intended */
+	case ASPEED_I2C_MASTER_TX_FIRST:
+		if (bus->buf_index < msg->len) {
+			bus->master_state = ASPEED_I2C_MASTER_TX;
+			writel(msg->buf[bus->buf_index++],
+			       bus->base + ASPEED_I2C_BYTE_BUF_REG);
+			writel(ASPEED_I2CD_M_TX_CMD,
+			       bus->base + ASPEED_I2C_CMD_REG);
+		} else {
+			aspeed_i2c_next_msg_or_stop(bus);
+		}
+		goto out_no_complete;
+	case ASPEED_I2C_MASTER_RX_FIRST:
+		/* RX may not have completed yet (only address cycle) */
+		if (!(irq_status & ASPEED_I2CD_INTR_RX_DONE))
+			goto out_no_complete;
+		/* fallthrough intended */
+	case ASPEED_I2C_MASTER_RX:
+		if (unlikely(!(irq_status & ASPEED_I2CD_INTR_RX_DONE))) {
+			dev_err(bus->dev, "master failed to RX");
+			goto error_and_stop;
+		}
+		status_ack |= ASPEED_I2CD_INTR_RX_DONE;
+
+		recv_byte = readl(bus->base + ASPEED_I2C_BYTE_BUF_REG) >> 8;
+		msg->buf[bus->buf_index++] = recv_byte;
+
+		if (msg->flags & I2C_M_RECV_LEN) {
+			if (unlikely(recv_byte > I2C_SMBUS_BLOCK_MAX)) {
+				bus->cmd_err = -EPROTO;
+				aspeed_i2c_do_stop(bus);
+				goto out_no_complete;
+			}
+			msg->len = recv_byte +
+					((msg->flags & I2C_CLIENT_PEC) ? 2 : 1);
+			msg->flags &= ~I2C_M_RECV_LEN;
+		}
+
+		if (bus->buf_index < msg->len) {
+			bus->master_state = ASPEED_I2C_MASTER_RX;
+			command = ASPEED_I2CD_M_RX_CMD;
+			if (bus->buf_index + 1 == msg->len)
+				command |= ASPEED_I2CD_M_S_RX_CMD_LAST;
+			writel(command, bus->base + ASPEED_I2C_CMD_REG);
+		} else {
+			aspeed_i2c_next_msg_or_stop(bus);
+		}
+		goto out_no_complete;
+	case ASPEED_I2C_MASTER_STOP:
+		if (unlikely(!(irq_status & ASPEED_I2CD_INTR_NORMAL_STOP))) {
+			dev_err(bus->dev, "master failed to STOP");
+			bus->cmd_err = -EIO;
+			/* Do not STOP as we have already tried. */
+		} else {
+			status_ack |= ASPEED_I2CD_INTR_NORMAL_STOP;
+		}
+
+		bus->master_state = ASPEED_I2C_MASTER_INACTIVE;
+		goto out_complete;
+	case ASPEED_I2C_MASTER_INACTIVE:
+		dev_err(bus->dev,
+			"master received interrupt 0x%08x, but is inactive",
+			irq_status);
+		bus->cmd_err = -EIO;
+		/* Do not STOP as we should be inactive. */
+		goto out_complete;
+	default:
+		WARN(1, "unknown master state\n");
+		bus->master_state = ASPEED_I2C_MASTER_INACTIVE;
+		bus->cmd_err = -EINVAL;
+		goto out_complete;
+	}
+error_and_stop:
+	bus->cmd_err = -EIO;
+	aspeed_i2c_do_stop(bus);
+	goto out_no_complete;
+out_complete:
+	bus->msgs = NULL;
+	if (bus->cmd_err)
+		bus->master_xfer_result = bus->cmd_err;
+	else
+		bus->master_xfer_result = bus->msgs_index + 1;
+	complete(&bus->cmd_complete);
+out_no_complete:
+	if (irq_status != status_ack)
+		dev_err(bus->dev,
+			"irq handled != irq. expected 0x%08x, but was 0x%08x\n",
+			irq_status, status_ack);
+	spin_unlock(&bus->lock);
+	return !!irq_status;
+}
+
+static irqreturn_t aspeed_i2c_bus_irq(int irq, void *dev_id)
+{
+	struct aspeed_i2c_bus *bus = dev_id;
+
+#if IS_ENABLED(CONFIG_I2C_SLAVE)
+	if (aspeed_i2c_slave_irq(bus)) {
+		dev_dbg(bus->dev, "irq handled by slave.\n");
+		return IRQ_HANDLED;
+	}
+#endif /* CONFIG_I2C_SLAVE */
+
+	return aspeed_i2c_master_irq(bus) ? IRQ_HANDLED : IRQ_NONE;
+}
+
+static int aspeed_i2c_master_xfer(struct i2c_adapter *adap,
+				  struct i2c_msg *msgs, int num)
+{
+	struct aspeed_i2c_bus *bus = i2c_get_adapdata(adap);
+	unsigned long time_left, flags;
+	int ret = 0;
+
+	spin_lock_irqsave(&bus->lock, flags);
+	bus->cmd_err = 0;
+
+	/* If bus is busy, attempt recovery. We assume a single master
+	 * environment.
+	 */
+	if (readl(bus->base + ASPEED_I2C_CMD_REG) & ASPEED_I2CD_BUS_BUSY_STS) {
+		spin_unlock_irqrestore(&bus->lock, flags);
+		ret = aspeed_i2c_recover_bus(bus);
+		if (ret)
+			return ret;
+		spin_lock_irqsave(&bus->lock, flags);
+	}
+
+	bus->cmd_err = 0;
+	bus->msgs = msgs;
+	bus->msgs_index = 0;
+	bus->msgs_count = num;
+
+	reinit_completion(&bus->cmd_complete);
+	aspeed_i2c_do_start(bus);
+	spin_unlock_irqrestore(&bus->lock, flags);
+
+	time_left = wait_for_completion_timeout(&bus->cmd_complete,
+						bus->adap.timeout);
+
+	if (time_left == 0)
+		return -ETIMEDOUT;
+	else
+		return bus->master_xfer_result;
+}
+
+static u32 aspeed_i2c_functionality(struct i2c_adapter *adap)
+{
+	return I2C_FUNC_I2C | I2C_FUNC_SMBUS_EMUL | I2C_FUNC_SMBUS_BLOCK_DATA;
+}
+
+#if IS_ENABLED(CONFIG_I2C_SLAVE)
+/* precondition: bus.lock has been acquired. */
+static void __aspeed_i2c_reg_slave(struct aspeed_i2c_bus *bus, u16 slave_addr)
+{
+	u32 addr_reg_val, func_ctrl_reg_val;
+
+	/* Set slave addr. */
+	addr_reg_val = readl(bus->base + ASPEED_I2C_DEV_ADDR_REG);
+	addr_reg_val &= ~ASPEED_I2CD_DEV_ADDR_MASK;
+	addr_reg_val |= slave_addr & ASPEED_I2CD_DEV_ADDR_MASK;
+	writel(addr_reg_val, bus->base + ASPEED_I2C_DEV_ADDR_REG);
+
+	/* Turn on slave mode. */
+	func_ctrl_reg_val = readl(bus->base + ASPEED_I2C_FUN_CTRL_REG);
+	func_ctrl_reg_val |= ASPEED_I2CD_SLAVE_EN;
+	writel(func_ctrl_reg_val, bus->base + ASPEED_I2C_FUN_CTRL_REG);
+}
+
+static int aspeed_i2c_reg_slave(struct i2c_client *client)
+{
+	struct aspeed_i2c_bus *bus = i2c_get_adapdata(client->adapter);
+	unsigned long flags;
+
+	spin_lock_irqsave(&bus->lock, flags);
+	if (bus->slave) {
+		spin_unlock_irqrestore(&bus->lock, flags);
+		return -EINVAL;
+	}
+
+	__aspeed_i2c_reg_slave(bus, client->addr);
+
+	bus->slave = client;
+	bus->slave_state = ASPEED_I2C_SLAVE_STOP;
+	spin_unlock_irqrestore(&bus->lock, flags);
+
+	return 0;
+}
+
+static int aspeed_i2c_unreg_slave(struct i2c_client *client)
+{
+	struct aspeed_i2c_bus *bus = i2c_get_adapdata(client->adapter);
+	u32 func_ctrl_reg_val;
+	unsigned long flags;
+
+	spin_lock_irqsave(&bus->lock, flags);
+	if (!bus->slave) {
+		spin_unlock_irqrestore(&bus->lock, flags);
+		return -EINVAL;
+	}
+
+	/* Turn off slave mode. */
+	func_ctrl_reg_val = readl(bus->base + ASPEED_I2C_FUN_CTRL_REG);
+	func_ctrl_reg_val &= ~ASPEED_I2CD_SLAVE_EN;
+	writel(func_ctrl_reg_val, bus->base + ASPEED_I2C_FUN_CTRL_REG);
+
+	bus->slave = NULL;
+	spin_unlock_irqrestore(&bus->lock, flags);
+
+	return 0;
+}
+#endif /* CONFIG_I2C_SLAVE */
+
+static const struct i2c_algorithm aspeed_i2c_algo = {
+	.master_xfer	= aspeed_i2c_master_xfer,
+	.functionality	= aspeed_i2c_functionality,
+#if IS_ENABLED(CONFIG_I2C_SLAVE)
+	.reg_slave	= aspeed_i2c_reg_slave,
+	.unreg_slave	= aspeed_i2c_unreg_slave,
+#endif /* CONFIG_I2C_SLAVE */
+};
+
+static u32 aspeed_i2c_get_clk_reg_val(u32 divisor)
+{
+	u32 base_clk, clk_high, clk_low, tmp;
+
+	/*
+	 * The actual clock frequency of SCL is:
+	 *	SCL_freq = APB_freq / (base_freq * (SCL_high + SCL_low))
+	 *		 = APB_freq / divisor
+	 * where base_freq is a programmable clock divider; its value is
+	 *	base_freq = 1 << base_clk
+	 * SCL_high is the number of base_freq clock cycles that SCL stays high
+	 * and SCL_low is the number of base_freq clock cycles that SCL stays
+	 * low for a period of SCL.
+	 * The actual register has a minimum SCL_high and SCL_low minimum of 1;
+	 * thus, they start counting at zero. So
+	 *	SCL_high = clk_high + 1
+	 *	SCL_low	 = clk_low + 1
+	 * Thus,
+	 *	SCL_freq = APB_freq /
+	 *		((1 << base_clk) * (clk_high + 1 + clk_low + 1))
+	 * The documentation recommends clk_high >= 8 and clk_low >= 7 when
+	 * possible; this last constraint gives us the following solution:
+	 */
+	base_clk = divisor > 33 ? ilog2((divisor - 1) / 32) + 1 : 0;
+	tmp = divisor / (1 << base_clk);
+	clk_high = tmp / 2 + tmp % 2;
+	clk_low = tmp - clk_high;
+
+	clk_high -= 1;
+	clk_low -= 1;
+
+	return ((clk_high << ASPEED_I2CD_TIME_SCL_HIGH_SHIFT)
+		& ASPEED_I2CD_TIME_SCL_HIGH_MASK)
+			| ((clk_low << ASPEED_I2CD_TIME_SCL_LOW_SHIFT)
+			   & ASPEED_I2CD_TIME_SCL_LOW_MASK)
+			| (base_clk & ASPEED_I2CD_TIME_BASE_DIVISOR_MASK);
+}
+
+/* precondition: bus.lock has been acquired. */
+static int aspeed_i2c_init_clk(struct aspeed_i2c_bus *bus)
+{
+	u32 divisor, clk_reg_val;
+
+	divisor = bus->parent_clk_frequency / bus->bus_frequency;
+	clk_reg_val = aspeed_i2c_get_clk_reg_val(divisor);
+	writel(clk_reg_val, bus->base + ASPEED_I2C_AC_TIMING_REG1);
+	writel(ASPEED_NO_TIMEOUT_CTRL, bus->base + ASPEED_I2C_AC_TIMING_REG2);
+
+	return 0;
+}
+
+/* precondition: bus.lock has been acquired. */
+static int aspeed_i2c_init(struct aspeed_i2c_bus *bus,
+			     struct platform_device *pdev)
+{
+	u32 fun_ctrl_reg = ASPEED_I2CD_MASTER_EN;
+	int ret;
+
+	/* Disable everything. */
+	writel(0, bus->base + ASPEED_I2C_FUN_CTRL_REG);
+
+	ret = aspeed_i2c_init_clk(bus);
+	if (ret < 0)
+		return ret;
+
+	if (!of_property_read_bool(pdev->dev.of_node, "multi-master"))
+		fun_ctrl_reg |= ASPEED_I2CD_MULTI_MASTER_DIS;
+
+	/* Enable Master Mode */
+	writel(readl(bus->base + ASPEED_I2C_FUN_CTRL_REG) | fun_ctrl_reg,
+	       bus->base + ASPEED_I2C_FUN_CTRL_REG);
+
+#if IS_ENABLED(CONFIG_I2C_SLAVE)
+	/* If slave has already been registered, re-enable it. */
+	if (bus->slave)
+		__aspeed_i2c_reg_slave(bus, bus->slave->addr);
+#endif /* CONFIG_I2C_SLAVE */
+
+	/* Set interrupt generation of I2C controller */
+	writel(ASPEED_I2CD_INTR_ALL, bus->base + ASPEED_I2C_INTR_CTRL_REG);
+
+	return 0;
+}
+
+static int aspeed_i2c_reset(struct aspeed_i2c_bus *bus)
+{
+	struct platform_device *pdev = to_platform_device(bus->dev);
+	unsigned long flags;
+	int ret;
+
+	spin_lock_irqsave(&bus->lock, flags);
+
+	/* Disable and ack all interrupts. */
+	writel(0, bus->base + ASPEED_I2C_INTR_CTRL_REG);
+	writel(0xffffffff, bus->base + ASPEED_I2C_INTR_STS_REG);
+
+	ret = aspeed_i2c_init(bus, pdev);
+
+	spin_unlock_irqrestore(&bus->lock, flags);
+
+	return ret;
+}
+
+static int aspeed_i2c_probe_bus(struct platform_device *pdev)
+{
+	struct aspeed_i2c_bus *bus;
+	struct clk *parent_clk;
+	struct resource *res;
+	int irq, ret;
+
+	bus = devm_kzalloc(&pdev->dev, sizeof(*bus), GFP_KERNEL);
+	if (!bus)
+		return -ENOMEM;
+
+	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+	bus->base = devm_ioremap_resource(&pdev->dev, res);
+	if (IS_ERR(bus->base))
+		return PTR_ERR(bus->base);
+
+	parent_clk = devm_clk_get(&pdev->dev, NULL);
+	if (IS_ERR(parent_clk))
+		return PTR_ERR(parent_clk);
+	bus->parent_clk_frequency = clk_get_rate(parent_clk);
+	/* We just need the clock rate, we don't actually use the clk object. */
+	devm_clk_put(&pdev->dev, parent_clk);
+
+	ret = of_property_read_u32(pdev->dev.of_node,
+				   "bus-frequency", &bus->bus_frequency);
+	if (ret < 0) {
+		dev_err(&pdev->dev,
+			"Could not read bus-frequency property\n");
+		bus->bus_frequency = 100000;
+	}
+
+	/* Initialize the I2C adapter */
+	spin_lock_init(&bus->lock);
+	init_completion(&bus->cmd_complete);
+	bus->adap.owner = THIS_MODULE;
+	bus->adap.retries = 0;
+	bus->adap.timeout = 5 * HZ;
+	bus->adap.algo = &aspeed_i2c_algo;
+	bus->adap.dev.parent = &pdev->dev;
+	bus->adap.dev.of_node = pdev->dev.of_node;
+	strlcpy(bus->adap.name, pdev->name, sizeof(bus->adap.name));
+	i2c_set_adapdata(&bus->adap, bus);
+
+	bus->dev = &pdev->dev;
+
+	/* Clean up any left over interrupt state. */
+	writel(0, bus->base + ASPEED_I2C_INTR_CTRL_REG);
+	writel(0xffffffff, bus->base + ASPEED_I2C_INTR_STS_REG);
+	/*
+	 * bus.lock does not need to be held because the interrupt handler has
+	 * not been enabled yet.
+	 */
+	ret = aspeed_i2c_init(bus, pdev);
+	if (ret < 0)
+		return ret;
+
+	irq = irq_of_parse_and_map(pdev->dev.of_node, 0);
+	ret = devm_request_irq(&pdev->dev, irq, aspeed_i2c_bus_irq,
+			       0, dev_name(&pdev->dev), bus);
+	if (ret < 0)
+		return ret;
+
+	ret = i2c_add_adapter(&bus->adap);
+	if (ret < 0)
+		return ret;
+
+	platform_set_drvdata(pdev, bus);
+
+	dev_info(bus->dev, "i2c bus %d registered, irq %d\n",
+		 bus->adap.nr, irq);
+
+	return 0;
+}
+
+static int aspeed_i2c_remove_bus(struct platform_device *pdev)
+{
+	struct aspeed_i2c_bus *bus = platform_get_drvdata(pdev);
+	unsigned long flags;
+
+	spin_lock_irqsave(&bus->lock, flags);
+
+	/* Disable everything. */
+	writel(0, bus->base + ASPEED_I2C_FUN_CTRL_REG);
+	writel(0, bus->base + ASPEED_I2C_INTR_CTRL_REG);
+
+	spin_unlock_irqrestore(&bus->lock, flags);
+
+	i2c_del_adapter(&bus->adap);
+
+	return 0;
+}
+
+static const struct of_device_id aspeed_i2c_bus_of_table[] = {
+	{ .compatible = "aspeed,ast2400-i2c-bus", },
+	{ .compatible = "aspeed,ast2500-i2c-bus", },
+	{ },
+};
+MODULE_DEVICE_TABLE(of, aspeed_i2c_bus_of_table);
+
+static struct platform_driver aspeed_i2c_bus_driver = {
+	.probe		= aspeed_i2c_probe_bus,
+	.remove		= aspeed_i2c_remove_bus,
+	.driver		= {
+		.name		= "aspeed-i2c-bus",
+		.of_match_table	= aspeed_i2c_bus_of_table,
+	},
+};
+module_platform_driver(aspeed_i2c_bus_driver);
+
+MODULE_AUTHOR("Brendan Higgins <brendanhiggins@google.com>");
+MODULE_DESCRIPTION("Aspeed I2C Bus Driver");
+MODULE_LICENSE("GPL v2");
diff --git a/drivers/i2c/busses/i2c-at91.c b/drivers/i2c/busses/i2c-at91.c
index fabbb9e49161..38dd61d621df 100644
--- a/drivers/i2c/busses/i2c-at91.c
+++ b/drivers/i2c/busses/i2c-at91.c
@@ -274,7 +274,7 @@ static void at91_twi_write_next_byte(struct at91_twi_dev *dev)
 		if (!dev->use_alt_cmd)
 			at91_twi_write(dev, AT91_TWI_CR, AT91_TWI_STOP);
 
-	dev_dbg(dev->dev, "wrote 0x%x, to go %d\n", *dev->buf, dev->buf_len);
+	dev_dbg(dev->dev, "wrote 0x%x, to go %zu\n", *dev->buf, dev->buf_len);
 
 	++dev->buf;
 }
@@ -402,7 +402,7 @@ static void at91_twi_read_next_byte(struct at91_twi_dev *dev)
 			dev->msg->flags &= ~I2C_M_RECV_LEN;
 			dev->buf_len += *dev->buf;
 			dev->msg->len = dev->buf_len + 1;
-			dev_dbg(dev->dev, "received block length %d\n",
+			dev_dbg(dev->dev, "received block length %zu\n",
 					 dev->buf_len);
 		} else {
 			/* abort and send the stop by reading one more byte */
@@ -415,7 +415,7 @@ static void at91_twi_read_next_byte(struct at91_twi_dev *dev)
 	if (!dev->use_alt_cmd && dev->buf_len == 1)
 		at91_twi_write(dev, AT91_TWI_CR, AT91_TWI_STOP);
 
-	dev_dbg(dev->dev, "read 0x%x, to go %d\n", *dev->buf, dev->buf_len);
+	dev_dbg(dev->dev, "read 0x%x, to go %zu\n", *dev->buf, dev->buf_len);
 
 	++dev->buf;
 }
@@ -622,7 +622,7 @@ static int at91_do_twi_transfer(struct at91_twi_dev *dev)
 	 * writing the corresponding bit into the Control Register.
 	 */
 
-	dev_dbg(dev->dev, "transfer: %s %d bytes.\n",
+	dev_dbg(dev->dev, "transfer: %s %zu bytes.\n",
 		(dev->msg->flags & I2C_M_RD) ? "read" : "write", dev->buf_len);
 
 	reinit_completion(&dev->cmd_complete);
@@ -1083,12 +1083,16 @@ static int at91_twi_probe(struct platform_device *pdev)
 		dev_err(dev->dev, "no clock defined\n");
 		return -ENODEV;
 	}
-	clk_prepare_enable(dev->clk);
+	rc = clk_prepare_enable(dev->clk);
+	if (rc)
+		return rc;
 
 	if (dev->dev->of_node) {
 		rc = at91_twi_configure_dma(dev, phy_addr);
-		if (rc == -EPROBE_DEFER)
+		if (rc == -EPROBE_DEFER) {
+			clk_disable_unprepare(dev->clk);
 			return rc;
+		}
 	}
 
 	if (!of_property_read_u32(pdev->dev.of_node, "atmel,fifo-size",
diff --git a/drivers/i2c/busses/i2c-cadence.c b/drivers/i2c/busses/i2c-cadence.c
index 45d6771fac8c..75d80161931f 100644
--- a/drivers/i2c/busses/i2c-cadence.c
+++ b/drivers/i2c/busses/i2c-cadence.c
@@ -405,14 +405,14 @@ static void cdns_i2c_mrecv(struct cdns_i2c *id)
 		cdns_i2c_writereg(id->recv_count, CDNS_I2C_XFER_SIZE_OFFSET);
 	}
 
+	/* Set the slave address in address register - triggers operation */
+	cdns_i2c_writereg(id->p_msg->addr & CDNS_I2C_ADDR_MASK,
+						CDNS_I2C_ADDR_OFFSET);
 	/* Clear the bus hold flag if bytes to receive is less than FIFO size */
 	if (!id->bus_hold_flag &&
 		((id->p_msg->flags & I2C_M_RECV_LEN) != I2C_M_RECV_LEN) &&
 		(id->recv_count <= CDNS_I2C_FIFO_DEPTH))
 			cdns_i2c_clear_bus_hold(id);
-	/* Set the slave address in address register - triggers operation */
-	cdns_i2c_writereg(id->p_msg->addr & CDNS_I2C_ADDR_MASK,
-						CDNS_I2C_ADDR_OFFSET);
 	cdns_i2c_writereg(CDNS_I2C_ENABLED_INTR_MASK, CDNS_I2C_IER_OFFSET);
 }
 
diff --git a/drivers/i2c/busses/i2c-designware-common.c b/drivers/i2c/busses/i2c-designware-common.c
new file mode 100644
index 000000000000..d1a69372432f
--- /dev/null
+++ b/drivers/i2c/busses/i2c-designware-common.c
@@ -0,0 +1,281 @@
+/*
+ * Synopsys DesignWare I2C adapter driver.
+ *
+ * Based on the TI DAVINCI I2C adapter driver.
+ *
+ * Copyright (C) 2006 Texas Instruments.
+ * Copyright (C) 2007 MontaVista Software Inc.
+ * Copyright (C) 2009 Provigent Ltd.
+ *
+ * ----------------------------------------------------------------------------
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ * ----------------------------------------------------------------------------
+ *
+ */
+#include <linux/delay.h>
+#include <linux/export.h>
+#include <linux/errno.h>
+#include <linux/err.h>
+#include <linux/i2c.h>
+#include <linux/interrupt.h>
+#include <linux/io.h>
+#include <linux/module.h>
+#include <linux/pm_runtime.h>
+
+#include "i2c-designware-core.h"
+
+static char *abort_sources[] = {
+	[ABRT_7B_ADDR_NOACK] =
+		"slave address not acknowledged (7bit mode)",
+	[ABRT_10ADDR1_NOACK] =
+		"first address byte not acknowledged (10bit mode)",
+	[ABRT_10ADDR2_NOACK] =
+		"second address byte not acknowledged (10bit mode)",
+	[ABRT_TXDATA_NOACK] =
+		"data not acknowledged",
+	[ABRT_GCALL_NOACK] =
+		"no acknowledgement for a general call",
+	[ABRT_GCALL_READ] =
+		"read after general call",
+	[ABRT_SBYTE_ACKDET] =
+		"start byte acknowledged",
+	[ABRT_SBYTE_NORSTRT] =
+		"trying to send start byte when restart is disabled",
+	[ABRT_10B_RD_NORSTRT] =
+		"trying to read when restart is disabled (10bit mode)",
+	[ABRT_MASTER_DIS] =
+		"trying to use disabled adapter",
+	[ARB_LOST] =
+		"lost arbitration",
+	[ABRT_SLAVE_FLUSH_TXFIFO] =
+		"read command so flush old data in the TX FIFO",
+	[ABRT_SLAVE_ARBLOST] =
+		"slave lost the bus while transmitting data to a remote master",
+	[ABRT_SLAVE_RD_INTX] =
+		"incorrect slave-transmitter mode configuration",
+};
+
+u32 dw_readl(struct dw_i2c_dev *dev, int offset)
+{
+	u32 value;
+
+	if (dev->flags & ACCESS_16BIT)
+		value = readw_relaxed(dev->base + offset) |
+			(readw_relaxed(dev->base + offset + 2) << 16);
+	else
+		value = readl_relaxed(dev->base + offset);
+
+	if (dev->flags & ACCESS_SWAP)
+		return swab32(value);
+	else
+		return value;
+}
+
+void dw_writel(struct dw_i2c_dev *dev, u32 b, int offset)
+{
+	if (dev->flags & ACCESS_SWAP)
+		b = swab32(b);
+
+	if (dev->flags & ACCESS_16BIT) {
+		writew_relaxed((u16)b, dev->base + offset);
+		writew_relaxed((u16)(b >> 16), dev->base + offset + 2);
+	} else {
+		writel_relaxed(b, dev->base + offset);
+	}
+}
+
+u32 i2c_dw_scl_hcnt(u32 ic_clk, u32 tSYMBOL, u32 tf, int cond, int offset)
+{
+	/*
+	 * DesignWare I2C core doesn't seem to have solid strategy to meet
+	 * the tHD;STA timing spec.  Configuring _HCNT based on tHIGH spec
+	 * will result in violation of the tHD;STA spec.
+	 */
+	if (cond)
+		/*
+		 * Conditional expression:
+		 *
+		 *   IC_[FS]S_SCL_HCNT + (1+4+3) >= IC_CLK * tHIGH
+		 *
+		 * This is based on the DW manuals, and represents an ideal
+		 * configuration.  The resulting I2C bus speed will be
+		 * faster than any of the others.
+		 *
+		 * If your hardware is free from tHD;STA issue, try this one.
+		 */
+		return (ic_clk * tSYMBOL + 500000) / 1000000 - 8 + offset;
+	else
+		/*
+		 * Conditional expression:
+		 *
+		 *   IC_[FS]S_SCL_HCNT + 3 >= IC_CLK * (tHD;STA + tf)
+		 *
+		 * This is just experimental rule; the tHD;STA period turned
+		 * out to be proportinal to (_HCNT + 3).  With this setting,
+		 * we could meet both tHIGH and tHD;STA timing specs.
+		 *
+		 * If unsure, you'd better to take this alternative.
+		 *
+		 * The reason why we need to take into account "tf" here,
+		 * is the same as described in i2c_dw_scl_lcnt().
+		 */
+		return (ic_clk * (tSYMBOL + tf) + 500000) / 1000000
+			- 3 + offset;
+}
+
+u32 i2c_dw_scl_lcnt(u32 ic_clk, u32 tLOW, u32 tf, int offset)
+{
+	/*
+	 * Conditional expression:
+	 *
+	 *   IC_[FS]S_SCL_LCNT + 1 >= IC_CLK * (tLOW + tf)
+	 *
+	 * DW I2C core starts counting the SCL CNTs for the LOW period
+	 * of the SCL clock (tLOW) as soon as it pulls the SCL line.
+	 * In order to meet the tLOW timing spec, we need to take into
+	 * account the fall time of SCL signal (tf).  Default tf value
+	 * should be 0.3 us, for safety.
+	 */
+	return ((ic_clk * (tLOW + tf) + 500000) / 1000000) - 1 + offset;
+}
+
+void __i2c_dw_enable(struct dw_i2c_dev *dev, bool enable)
+{
+	dw_writel(dev, enable, DW_IC_ENABLE);
+}
+
+void __i2c_dw_enable_and_wait(struct dw_i2c_dev *dev, bool enable)
+{
+	int timeout = 100;
+
+	do {
+		__i2c_dw_enable(dev, enable);
+		if ((dw_readl(dev, DW_IC_ENABLE_STATUS) & 1) == enable)
+			return;
+
+		/*
+		 * Wait 10 times the signaling period of the highest I2C
+		 * transfer supported by the driver (for 400KHz this is
+		 * 25us) as described in the DesignWare I2C databook.
+		 */
+		usleep_range(25, 250);
+	} while (timeout--);
+
+	dev_warn(dev->dev, "timeout in %sabling adapter\n",
+		 enable ? "en" : "dis");
+}
+
+unsigned long i2c_dw_clk_rate(struct dw_i2c_dev *dev)
+{
+	/*
+	 * Clock is not necessary if we got LCNT/HCNT values directly from
+	 * the platform code.
+	 */
+	if (WARN_ON_ONCE(!dev->get_clk_rate_khz))
+		return 0;
+	return dev->get_clk_rate_khz(dev);
+}
+
+int i2c_dw_acquire_lock(struct dw_i2c_dev *dev)
+{
+	int ret;
+
+	if (!dev->acquire_lock)
+		return 0;
+
+	ret = dev->acquire_lock(dev);
+	if (!ret)
+		return 0;
+
+	dev_err(dev->dev, "couldn't acquire bus ownership\n");
+
+	return ret;
+}
+
+void i2c_dw_release_lock(struct dw_i2c_dev *dev)
+{
+	if (dev->release_lock)
+		dev->release_lock(dev);
+}
+
+/*
+ * Waiting for bus not busy
+ */
+int i2c_dw_wait_bus_not_busy(struct dw_i2c_dev *dev)
+{
+	int timeout = TIMEOUT;
+
+	while (dw_readl(dev, DW_IC_STATUS) & DW_IC_STATUS_ACTIVITY) {
+		if (timeout <= 0) {
+			dev_warn(dev->dev, "timeout waiting for bus ready\n");
+			return -ETIMEDOUT;
+		}
+		timeout--;
+		usleep_range(1000, 1100);
+	}
+
+	return 0;
+}
+
+int i2c_dw_handle_tx_abort(struct dw_i2c_dev *dev)
+{
+	unsigned long abort_source = dev->abort_source;
+	int i;
+
+	if (abort_source & DW_IC_TX_ABRT_NOACK) {
+		for_each_set_bit(i, &abort_source, ARRAY_SIZE(abort_sources))
+			dev_dbg(dev->dev,
+				"%s: %s\n", __func__, abort_sources[i]);
+		return -EREMOTEIO;
+	}
+
+	for_each_set_bit(i, &abort_source, ARRAY_SIZE(abort_sources))
+		dev_err(dev->dev, "%s: %s\n", __func__, abort_sources[i]);
+
+	if (abort_source & DW_IC_TX_ARB_LOST)
+		return -EAGAIN;
+	else if (abort_source & DW_IC_TX_ABRT_GCALL_READ)
+		return -EINVAL; /* wrong msgs[] data */
+	else
+		return -EIO;
+}
+
+u32 i2c_dw_func(struct i2c_adapter *adap)
+{
+	struct dw_i2c_dev *dev = i2c_get_adapdata(adap);
+
+	return dev->functionality;
+}
+
+void i2c_dw_disable(struct dw_i2c_dev *dev)
+{
+	/* Disable controller */
+	__i2c_dw_enable_and_wait(dev, false);
+
+	/* Disable all interupts */
+	dw_writel(dev, 0, DW_IC_INTR_MASK);
+	dw_readl(dev, DW_IC_CLR_INTR);
+}
+
+void i2c_dw_disable_int(struct dw_i2c_dev *dev)
+{
+	dw_writel(dev, 0, DW_IC_INTR_MASK);
+}
+
+u32 i2c_dw_read_comp_param(struct dw_i2c_dev *dev)
+{
+	return dw_readl(dev, DW_IC_COMP_PARAM_1);
+}
+EXPORT_SYMBOL_GPL(i2c_dw_read_comp_param);
+
+MODULE_DESCRIPTION("Synopsys DesignWare I2C bus adapter core");
+MODULE_LICENSE("GPL");
diff --git a/drivers/i2c/busses/i2c-designware-core.h b/drivers/i2c/busses/i2c-designware-core.h
index a7cf429daf60..9fee4c054d3d 100644
--- a/drivers/i2c/busses/i2c-designware-core.h
+++ b/drivers/i2c/busses/i2c-designware-core.h
@@ -1,5 +1,5 @@
 /*
- * Synopsys DesignWare I2C adapter driver (master only).
+ * Synopsys DesignWare I2C adapter driver.
  *
  * Based on the TI DAVINCI I2C adapter driver.
  *
@@ -37,9 +37,152 @@
 #define DW_IC_CON_SPEED_FAST		0x4
 #define DW_IC_CON_SPEED_HIGH		0x6
 #define DW_IC_CON_SPEED_MASK		0x6
+#define DW_IC_CON_10BITADDR_SLAVE		0x8
 #define DW_IC_CON_10BITADDR_MASTER	0x10
 #define DW_IC_CON_RESTART_EN		0x20
 #define DW_IC_CON_SLAVE_DISABLE		0x40
+#define DW_IC_CON_STOP_DET_IFADDRESSED		0x80
+#define DW_IC_CON_TX_EMPTY_CTRL		0x100
+#define DW_IC_CON_RX_FIFO_FULL_HLD_CTRL		0x200
+
+/*
+ * Registers offset
+ */
+#define DW_IC_CON		0x0
+#define DW_IC_TAR		0x4
+#define DW_IC_SAR		0x8
+#define DW_IC_DATA_CMD		0x10
+#define DW_IC_SS_SCL_HCNT	0x14
+#define DW_IC_SS_SCL_LCNT	0x18
+#define DW_IC_FS_SCL_HCNT	0x1c
+#define DW_IC_FS_SCL_LCNT	0x20
+#define DW_IC_HS_SCL_HCNT	0x24
+#define DW_IC_HS_SCL_LCNT	0x28
+#define DW_IC_INTR_STAT		0x2c
+#define DW_IC_INTR_MASK		0x30
+#define DW_IC_RAW_INTR_STAT	0x34
+#define DW_IC_RX_TL		0x38
+#define DW_IC_TX_TL		0x3c
+#define DW_IC_CLR_INTR		0x40
+#define DW_IC_CLR_RX_UNDER	0x44
+#define DW_IC_CLR_RX_OVER	0x48
+#define DW_IC_CLR_TX_OVER	0x4c
+#define DW_IC_CLR_RD_REQ	0x50
+#define DW_IC_CLR_TX_ABRT	0x54
+#define DW_IC_CLR_RX_DONE	0x58
+#define DW_IC_CLR_ACTIVITY	0x5c
+#define DW_IC_CLR_STOP_DET	0x60
+#define DW_IC_CLR_START_DET	0x64
+#define DW_IC_CLR_GEN_CALL	0x68
+#define DW_IC_ENABLE		0x6c
+#define DW_IC_STATUS		0x70
+#define DW_IC_TXFLR		0x74
+#define DW_IC_RXFLR		0x78
+#define DW_IC_SDA_HOLD		0x7c
+#define DW_IC_TX_ABRT_SOURCE	0x80
+#define DW_IC_ENABLE_STATUS	0x9c
+#define DW_IC_CLR_RESTART_DET	0xa8
+#define DW_IC_COMP_PARAM_1	0xf4
+#define DW_IC_COMP_VERSION	0xf8
+#define DW_IC_SDA_HOLD_MIN_VERS	0x3131312A
+#define DW_IC_COMP_TYPE		0xfc
+#define DW_IC_COMP_TYPE_VALUE	0x44570140
+
+#define DW_IC_INTR_RX_UNDER	0x001
+#define DW_IC_INTR_RX_OVER	0x002
+#define DW_IC_INTR_RX_FULL	0x004
+#define DW_IC_INTR_TX_OVER	0x008
+#define DW_IC_INTR_TX_EMPTY	0x010
+#define DW_IC_INTR_RD_REQ	0x020
+#define DW_IC_INTR_TX_ABRT	0x040
+#define DW_IC_INTR_RX_DONE	0x080
+#define DW_IC_INTR_ACTIVITY	0x100
+#define DW_IC_INTR_STOP_DET	0x200
+#define DW_IC_INTR_START_DET	0x400
+#define DW_IC_INTR_GEN_CALL	0x800
+#define DW_IC_INTR_RESTART_DET	0x1000
+
+#define DW_IC_INTR_DEFAULT_MASK		(DW_IC_INTR_RX_FULL | \
+					 DW_IC_INTR_TX_ABRT | \
+					 DW_IC_INTR_STOP_DET)
+#define DW_IC_INTR_MASTER_MASK		(DW_IC_INTR_DEFAULT_MASK | \
+					 DW_IC_INTR_TX_EMPTY)
+#define DW_IC_INTR_SLAVE_MASK		(DW_IC_INTR_DEFAULT_MASK | \
+					 DW_IC_INTR_RX_DONE | \
+					 DW_IC_INTR_RX_UNDER | \
+					 DW_IC_INTR_RD_REQ)
+
+#define DW_IC_STATUS_ACTIVITY		0x1
+#define DW_IC_STATUS_TFE		BIT(2)
+#define DW_IC_STATUS_MASTER_ACTIVITY	BIT(5)
+#define DW_IC_STATUS_SLAVE_ACTIVITY	BIT(6)
+
+#define DW_IC_SDA_HOLD_RX_SHIFT		16
+#define DW_IC_SDA_HOLD_RX_MASK		GENMASK(23, DW_IC_SDA_HOLD_RX_SHIFT)
+
+#define DW_IC_ERR_TX_ABRT	0x1
+
+#define DW_IC_TAR_10BITADDR_MASTER BIT(12)
+
+#define DW_IC_COMP_PARAM_1_SPEED_MODE_HIGH	(BIT(2) | BIT(3))
+#define DW_IC_COMP_PARAM_1_SPEED_MODE_MASK	GENMASK(3, 2)
+
+/*
+ * status codes
+ */
+#define STATUS_IDLE			0x0
+#define STATUS_WRITE_IN_PROGRESS	0x1
+#define STATUS_READ_IN_PROGRESS		0x2
+
+#define TIMEOUT			20 /* ms */
+
+/*
+ * operation modes
+ */
+#define DW_IC_MASTER		0
+#define DW_IC_SLAVE		1
+
+/*
+ * Hardware abort codes from the DW_IC_TX_ABRT_SOURCE register
+ *
+ * Only expected abort codes are listed here
+ * refer to the datasheet for the full list
+ */
+#define ABRT_7B_ADDR_NOACK	0
+#define ABRT_10ADDR1_NOACK	1
+#define ABRT_10ADDR2_NOACK	2
+#define ABRT_TXDATA_NOACK	3
+#define ABRT_GCALL_NOACK	4
+#define ABRT_GCALL_READ		5
+#define ABRT_SBYTE_ACKDET	7
+#define ABRT_SBYTE_NORSTRT	9
+#define ABRT_10B_RD_NORSTRT	10
+#define ABRT_MASTER_DIS		11
+#define ARB_LOST		12
+#define ABRT_SLAVE_FLUSH_TXFIFO	13
+#define ABRT_SLAVE_ARBLOST	14
+#define ABRT_SLAVE_RD_INTX	15
+
+#define DW_IC_TX_ABRT_7B_ADDR_NOACK	(1UL << ABRT_7B_ADDR_NOACK)
+#define DW_IC_TX_ABRT_10ADDR1_NOACK	(1UL << ABRT_10ADDR1_NOACK)
+#define DW_IC_TX_ABRT_10ADDR2_NOACK	(1UL << ABRT_10ADDR2_NOACK)
+#define DW_IC_TX_ABRT_TXDATA_NOACK	(1UL << ABRT_TXDATA_NOACK)
+#define DW_IC_TX_ABRT_GCALL_NOACK	(1UL << ABRT_GCALL_NOACK)
+#define DW_IC_TX_ABRT_GCALL_READ	(1UL << ABRT_GCALL_READ)
+#define DW_IC_TX_ABRT_SBYTE_ACKDET	(1UL << ABRT_SBYTE_ACKDET)
+#define DW_IC_TX_ABRT_SBYTE_NORSTRT	(1UL << ABRT_SBYTE_NORSTRT)
+#define DW_IC_TX_ABRT_10B_RD_NORSTRT	(1UL << ABRT_10B_RD_NORSTRT)
+#define DW_IC_TX_ABRT_MASTER_DIS	(1UL << ABRT_MASTER_DIS)
+#define DW_IC_TX_ARB_LOST		(1UL << ARB_LOST)
+#define DW_IC_RX_ABRT_SLAVE_RD_INTX	(1UL << ABRT_SLAVE_RD_INTX)
+#define DW_IC_RX_ABRT_SLAVE_ARBLOST	(1UL << ABRT_SLAVE_ARBLOST)
+#define DW_IC_RX_ABRT_SLAVE_FLUSH_TXFIFO	(1UL << ABRT_SLAVE_FLUSH_TXFIFO)
+
+#define DW_IC_TX_ABRT_NOACK		(DW_IC_TX_ABRT_7B_ADDR_NOACK | \
+					 DW_IC_TX_ABRT_10ADDR1_NOACK | \
+					 DW_IC_TX_ABRT_10ADDR2_NOACK | \
+					 DW_IC_TX_ABRT_TXDATA_NOACK | \
+					 DW_IC_TX_ABRT_GCALL_NOACK)
 
 
 /**
@@ -48,8 +191,9 @@
  * @base: IO registers pointer
  * @cmd_complete: tx completion indicator
  * @clk: input reference clock
+ * @slave: represent an I2C slave device
  * @cmd_err: run time hadware error code
- * @msgs: points to an array of messages currently being transfered
+ * @msgs: points to an array of messages currently being transferred
  * @msgs_num: the number of elements in msgs
  * @msg_write_idx: the element index of the current tx message in the msgs
  *	array
@@ -64,6 +208,7 @@
  * @abort_source: copy of the TX_ABRT_SOURCE register
  * @irq: interrupt number for the i2c master
  * @adapter: i2c subsystem adapter node
+ * @slave_cfg: configuration for the slave device
  * @tx_fifo_depth: depth of the hardware tx fifo
  * @rx_fifo_depth: depth of the hardware rx fifo
  * @rx_outstanding: current master-rx elements in tx fifo
@@ -80,6 +225,10 @@
  * @acquire_lock: function to acquire a hardware lock on the bus
  * @release_lock: function to release a hardware lock on the bus
  * @pm_disabled: true if power-management should be disabled for this i2c-bus
+ * @disable: function to disable the controller
+ * @disable_int: function to disable all interrupts
+ * @init: function to initialize the I2C hardware
+ * @mode: operation mode - DW_IC_MASTER or DW_IC_SLAVE
  *
  * HCNT and LCNT parameters can be used if the platform knows more accurate
  * values than the one computed based only on the input clock frequency.
@@ -91,6 +240,7 @@ struct dw_i2c_dev {
 	struct completion	cmd_complete;
 	struct clk		*clk;
 	struct reset_control	*rst;
+	struct i2c_client		*slave;
 	u32			(*get_clk_rate_khz) (struct dw_i2c_dev *dev);
 	struct dw_pci_controller *controller;
 	int			cmd_err;
@@ -110,6 +260,7 @@ struct dw_i2c_dev {
 	struct i2c_adapter	adapter;
 	u32			functionality;
 	u32			master_cfg;
+	u32			slave_cfg;
 	unsigned int		tx_fifo_depth;
 	unsigned int		rx_fifo_depth;
 	int			rx_outstanding;
@@ -129,6 +280,10 @@ struct dw_i2c_dev {
 	int			(*acquire_lock)(struct dw_i2c_dev *dev);
 	void			(*release_lock)(struct dw_i2c_dev *dev);
 	bool			pm_disabled;
+	void			(*disable)(struct dw_i2c_dev *dev);
+	void			(*disable_int)(struct dw_i2c_dev *dev);
+	int			(*init)(struct dw_i2c_dev *dev);
+	int			mode;
 };
 
 #define ACCESS_SWAP		0x00000001
@@ -137,11 +292,28 @@ struct dw_i2c_dev {
 
 #define MODEL_CHERRYTRAIL	0x00000100
 
-extern int i2c_dw_init(struct dw_i2c_dev *dev);
-extern void i2c_dw_disable(struct dw_i2c_dev *dev);
-extern void i2c_dw_disable_int(struct dw_i2c_dev *dev);
+u32 dw_readl(struct dw_i2c_dev *dev, int offset);
+void dw_writel(struct dw_i2c_dev *dev, u32 b, int offset);
+u32 i2c_dw_scl_hcnt(u32 ic_clk, u32 tSYMBOL, u32 tf, int cond, int offset);
+u32 i2c_dw_scl_lcnt(u32 ic_clk, u32 tLOW, u32 tf, int offset);
+void __i2c_dw_enable(struct dw_i2c_dev *dev, bool enable);
+void __i2c_dw_enable_and_wait(struct dw_i2c_dev *dev, bool enable);
+unsigned long i2c_dw_clk_rate(struct dw_i2c_dev *dev);
+int i2c_dw_acquire_lock(struct dw_i2c_dev *dev);
+void i2c_dw_release_lock(struct dw_i2c_dev *dev);
+int i2c_dw_wait_bus_not_busy(struct dw_i2c_dev *dev);
+int i2c_dw_handle_tx_abort(struct dw_i2c_dev *dev);
+u32 i2c_dw_func(struct i2c_adapter *adap);
+void i2c_dw_disable(struct dw_i2c_dev *dev);
+void i2c_dw_disable_int(struct dw_i2c_dev *dev);
+
 extern u32 i2c_dw_read_comp_param(struct dw_i2c_dev *dev);
 extern int i2c_dw_probe(struct dw_i2c_dev *dev);
+#if IS_ENABLED(CONFIG_I2C_DESIGNWARE_SLAVE)
+extern int i2c_dw_probe_slave(struct dw_i2c_dev *dev);
+#else
+static inline int i2c_dw_probe_slave(struct dw_i2c_dev *dev) { return -EINVAL; }
+#endif
 
 #if IS_ENABLED(CONFIG_I2C_DESIGNWARE_BAYTRAIL)
 extern int i2c_dw_probe_lock_support(struct dw_i2c_dev *dev);
diff --git a/drivers/i2c/busses/i2c-designware-core.c b/drivers/i2c/busses/i2c-designware-master.c
index c453717b753b..418c233075d3 100644
--- a/drivers/i2c/busses/i2c-designware-core.c
+++ b/drivers/i2c/busses/i2c-designware-master.c
@@ -21,311 +21,37 @@
  * ----------------------------------------------------------------------------
  *
  */
-#include <linux/export.h>
-#include <linux/errno.h>
+#include <linux/delay.h>
 #include <linux/err.h>
+#include <linux/errno.h>
+#include <linux/export.h>
 #include <linux/i2c.h>
 #include <linux/interrupt.h>
 #include <linux/io.h>
-#include <linux/pm_runtime.h>
-#include <linux/delay.h>
 #include <linux/module.h>
-#include "i2c-designware-core.h"
-
-/*
- * Registers offset
- */
-#define DW_IC_CON		0x0
-#define DW_IC_TAR		0x4
-#define DW_IC_DATA_CMD		0x10
-#define DW_IC_SS_SCL_HCNT	0x14
-#define DW_IC_SS_SCL_LCNT	0x18
-#define DW_IC_FS_SCL_HCNT	0x1c
-#define DW_IC_FS_SCL_LCNT	0x20
-#define DW_IC_HS_SCL_HCNT	0x24
-#define DW_IC_HS_SCL_LCNT	0x28
-#define DW_IC_INTR_STAT		0x2c
-#define DW_IC_INTR_MASK		0x30
-#define DW_IC_RAW_INTR_STAT	0x34
-#define DW_IC_RX_TL		0x38
-#define DW_IC_TX_TL		0x3c
-#define DW_IC_CLR_INTR		0x40
-#define DW_IC_CLR_RX_UNDER	0x44
-#define DW_IC_CLR_RX_OVER	0x48
-#define DW_IC_CLR_TX_OVER	0x4c
-#define DW_IC_CLR_RD_REQ	0x50
-#define DW_IC_CLR_TX_ABRT	0x54
-#define DW_IC_CLR_RX_DONE	0x58
-#define DW_IC_CLR_ACTIVITY	0x5c
-#define DW_IC_CLR_STOP_DET	0x60
-#define DW_IC_CLR_START_DET	0x64
-#define DW_IC_CLR_GEN_CALL	0x68
-#define DW_IC_ENABLE		0x6c
-#define DW_IC_STATUS		0x70
-#define DW_IC_TXFLR		0x74
-#define DW_IC_RXFLR		0x78
-#define DW_IC_SDA_HOLD		0x7c
-#define DW_IC_TX_ABRT_SOURCE	0x80
-#define DW_IC_ENABLE_STATUS	0x9c
-#define DW_IC_COMP_PARAM_1	0xf4
-#define DW_IC_COMP_VERSION	0xf8
-#define DW_IC_SDA_HOLD_MIN_VERS	0x3131312A
-#define DW_IC_COMP_TYPE		0xfc
-#define DW_IC_COMP_TYPE_VALUE	0x44570140
-
-#define DW_IC_INTR_RX_UNDER	0x001
-#define DW_IC_INTR_RX_OVER	0x002
-#define DW_IC_INTR_RX_FULL	0x004
-#define DW_IC_INTR_TX_OVER	0x008
-#define DW_IC_INTR_TX_EMPTY	0x010
-#define DW_IC_INTR_RD_REQ	0x020
-#define DW_IC_INTR_TX_ABRT	0x040
-#define DW_IC_INTR_RX_DONE	0x080
-#define DW_IC_INTR_ACTIVITY	0x100
-#define DW_IC_INTR_STOP_DET	0x200
-#define DW_IC_INTR_START_DET	0x400
-#define DW_IC_INTR_GEN_CALL	0x800
-
-#define DW_IC_INTR_DEFAULT_MASK		(DW_IC_INTR_RX_FULL | \
-					 DW_IC_INTR_TX_EMPTY | \
-					 DW_IC_INTR_TX_ABRT | \
-					 DW_IC_INTR_STOP_DET)
-
-#define DW_IC_STATUS_ACTIVITY	0x1
-
-#define DW_IC_SDA_HOLD_RX_SHIFT		16
-#define DW_IC_SDA_HOLD_RX_MASK		GENMASK(23, DW_IC_SDA_HOLD_RX_SHIFT)
-
-#define DW_IC_ERR_TX_ABRT	0x1
-
-#define DW_IC_TAR_10BITADDR_MASTER BIT(12)
-
-#define DW_IC_COMP_PARAM_1_SPEED_MODE_HIGH	(BIT(2) | BIT(3))
-#define DW_IC_COMP_PARAM_1_SPEED_MODE_MASK	GENMASK(3, 2)
-
-/*
- * status codes
- */
-#define STATUS_IDLE			0x0
-#define STATUS_WRITE_IN_PROGRESS	0x1
-#define STATUS_READ_IN_PROGRESS		0x2
-
-#define TIMEOUT			20 /* ms */
-
-/*
- * hardware abort codes from the DW_IC_TX_ABRT_SOURCE register
- *
- * only expected abort codes are listed here
- * refer to the datasheet for the full list
- */
-#define ABRT_7B_ADDR_NOACK	0
-#define ABRT_10ADDR1_NOACK	1
-#define ABRT_10ADDR2_NOACK	2
-#define ABRT_TXDATA_NOACK	3
-#define ABRT_GCALL_NOACK	4
-#define ABRT_GCALL_READ		5
-#define ABRT_SBYTE_ACKDET	7
-#define ABRT_SBYTE_NORSTRT	9
-#define ABRT_10B_RD_NORSTRT	10
-#define ABRT_MASTER_DIS		11
-#define ARB_LOST		12
-
-#define DW_IC_TX_ABRT_7B_ADDR_NOACK	(1UL << ABRT_7B_ADDR_NOACK)
-#define DW_IC_TX_ABRT_10ADDR1_NOACK	(1UL << ABRT_10ADDR1_NOACK)
-#define DW_IC_TX_ABRT_10ADDR2_NOACK	(1UL << ABRT_10ADDR2_NOACK)
-#define DW_IC_TX_ABRT_TXDATA_NOACK	(1UL << ABRT_TXDATA_NOACK)
-#define DW_IC_TX_ABRT_GCALL_NOACK	(1UL << ABRT_GCALL_NOACK)
-#define DW_IC_TX_ABRT_GCALL_READ	(1UL << ABRT_GCALL_READ)
-#define DW_IC_TX_ABRT_SBYTE_ACKDET	(1UL << ABRT_SBYTE_ACKDET)
-#define DW_IC_TX_ABRT_SBYTE_NORSTRT	(1UL << ABRT_SBYTE_NORSTRT)
-#define DW_IC_TX_ABRT_10B_RD_NORSTRT	(1UL << ABRT_10B_RD_NORSTRT)
-#define DW_IC_TX_ABRT_MASTER_DIS	(1UL << ABRT_MASTER_DIS)
-#define DW_IC_TX_ARB_LOST		(1UL << ARB_LOST)
-
-#define DW_IC_TX_ABRT_NOACK		(DW_IC_TX_ABRT_7B_ADDR_NOACK | \
-					 DW_IC_TX_ABRT_10ADDR1_NOACK | \
-					 DW_IC_TX_ABRT_10ADDR2_NOACK | \
-					 DW_IC_TX_ABRT_TXDATA_NOACK | \
-					 DW_IC_TX_ABRT_GCALL_NOACK)
-
-static char *abort_sources[] = {
-	[ABRT_7B_ADDR_NOACK] =
-		"slave address not acknowledged (7bit mode)",
-	[ABRT_10ADDR1_NOACK] =
-		"first address byte not acknowledged (10bit mode)",
-	[ABRT_10ADDR2_NOACK] =
-		"second address byte not acknowledged (10bit mode)",
-	[ABRT_TXDATA_NOACK] =
-		"data not acknowledged",
-	[ABRT_GCALL_NOACK] =
-		"no acknowledgement for a general call",
-	[ABRT_GCALL_READ] =
-		"read after general call",
-	[ABRT_SBYTE_ACKDET] =
-		"start byte acknowledged",
-	[ABRT_SBYTE_NORSTRT] =
-		"trying to send start byte when restart is disabled",
-	[ABRT_10B_RD_NORSTRT] =
-		"trying to read when restart is disabled (10bit mode)",
-	[ABRT_MASTER_DIS] =
-		"trying to use disabled adapter",
-	[ARB_LOST] =
-		"lost arbitration",
-};
-
-static u32 dw_readl(struct dw_i2c_dev *dev, int offset)
-{
-	u32 value;
-
-	if (dev->flags & ACCESS_16BIT)
-		value = readw_relaxed(dev->base + offset) |
-			(readw_relaxed(dev->base + offset + 2) << 16);
-	else
-		value = readl_relaxed(dev->base + offset);
-
-	if (dev->flags & ACCESS_SWAP)
-		return swab32(value);
-	else
-		return value;
-}
-
-static void dw_writel(struct dw_i2c_dev *dev, u32 b, int offset)
-{
-	if (dev->flags & ACCESS_SWAP)
-		b = swab32(b);
-
-	if (dev->flags & ACCESS_16BIT) {
-		writew_relaxed((u16)b, dev->base + offset);
-		writew_relaxed((u16)(b >> 16), dev->base + offset + 2);
-	} else {
-		writel_relaxed(b, dev->base + offset);
-	}
-}
-
-static u32
-i2c_dw_scl_hcnt(u32 ic_clk, u32 tSYMBOL, u32 tf, int cond, int offset)
-{
-	/*
-	 * DesignWare I2C core doesn't seem to have solid strategy to meet
-	 * the tHD;STA timing spec.  Configuring _HCNT based on tHIGH spec
-	 * will result in violation of the tHD;STA spec.
-	 */
-	if (cond)
-		/*
-		 * Conditional expression:
-		 *
-		 *   IC_[FS]S_SCL_HCNT + (1+4+3) >= IC_CLK * tHIGH
-		 *
-		 * This is based on the DW manuals, and represents an ideal
-		 * configuration.  The resulting I2C bus speed will be
-		 * faster than any of the others.
-		 *
-		 * If your hardware is free from tHD;STA issue, try this one.
-		 */
-		return (ic_clk * tSYMBOL + 500000) / 1000000 - 8 + offset;
-	else
-		/*
-		 * Conditional expression:
-		 *
-		 *   IC_[FS]S_SCL_HCNT + 3 >= IC_CLK * (tHD;STA + tf)
-		 *
-		 * This is just experimental rule; the tHD;STA period turned
-		 * out to be proportinal to (_HCNT + 3).  With this setting,
-		 * we could meet both tHIGH and tHD;STA timing specs.
-		 *
-		 * If unsure, you'd better to take this alternative.
-		 *
-		 * The reason why we need to take into account "tf" here,
-		 * is the same as described in i2c_dw_scl_lcnt().
-		 */
-		return (ic_clk * (tSYMBOL + tf) + 500000) / 1000000
-			- 3 + offset;
-}
-
-static u32 i2c_dw_scl_lcnt(u32 ic_clk, u32 tLOW, u32 tf, int offset)
-{
-	/*
-	 * Conditional expression:
-	 *
-	 *   IC_[FS]S_SCL_LCNT + 1 >= IC_CLK * (tLOW + tf)
-	 *
-	 * DW I2C core starts counting the SCL CNTs for the LOW period
-	 * of the SCL clock (tLOW) as soon as it pulls the SCL line.
-	 * In order to meet the tLOW timing spec, we need to take into
-	 * account the fall time of SCL signal (tf).  Default tf value
-	 * should be 0.3 us, for safety.
-	 */
-	return ((ic_clk * (tLOW + tf) + 500000) / 1000000) - 1 + offset;
-}
-
-static void __i2c_dw_enable(struct dw_i2c_dev *dev, bool enable)
-{
-	dw_writel(dev, enable, DW_IC_ENABLE);
-}
-
-static void __i2c_dw_enable_and_wait(struct dw_i2c_dev *dev, bool enable)
-{
-	int timeout = 100;
-
-	do {
-		__i2c_dw_enable(dev, enable);
-		if ((dw_readl(dev, DW_IC_ENABLE_STATUS) & 1) == enable)
-			return;
-
-		/*
-		 * Wait 10 times the signaling period of the highest I2C
-		 * transfer supported by the driver (for 400KHz this is
-		 * 25us) as described in the DesignWare I2C databook.
-		 */
-		usleep_range(25, 250);
-	} while (timeout--);
-
-	dev_warn(dev->dev, "timeout in %sabling adapter\n",
-		 enable ? "en" : "dis");
-}
+#include <linux/pm_runtime.h>
 
-static unsigned long i2c_dw_clk_rate(struct dw_i2c_dev *dev)
-{
-	/*
-	 * Clock is not necessary if we got LCNT/HCNT values directly from
-	 * the platform code.
-	 */
-	if (WARN_ON_ONCE(!dev->get_clk_rate_khz))
-		return 0;
-	return dev->get_clk_rate_khz(dev);
-}
+#include "i2c-designware-core.h"
 
-static int i2c_dw_acquire_lock(struct dw_i2c_dev *dev)
+static void i2c_dw_configure_fifo_master(struct dw_i2c_dev *dev)
 {
-	int ret;
-
-	if (!dev->acquire_lock)
-		return 0;
-
-	ret = dev->acquire_lock(dev);
-	if (!ret)
-		return 0;
-
-	dev_err(dev->dev, "couldn't acquire bus ownership\n");
-
-	return ret;
-}
+	/* Configure Tx/Rx FIFO threshold levels */
+	dw_writel(dev, dev->tx_fifo_depth / 2, DW_IC_TX_TL);
+	dw_writel(dev, 0, DW_IC_RX_TL);
 
-static void i2c_dw_release_lock(struct dw_i2c_dev *dev)
-{
-	if (dev->release_lock)
-		dev->release_lock(dev);
+	/* Configure the I2C master */
+	dw_writel(dev, dev->master_cfg, DW_IC_CON);
 }
 
 /**
- * i2c_dw_init() - initialize the designware i2c master hardware
+ * i2c_dw_init() - Initialize the designware I2C master hardware
  * @dev: device private data
  *
  * This functions configures and enables the I2C master.
  * This function is called during I2C init function, and in case of timeout at
  * run time.
  */
-int i2c_dw_init(struct dw_i2c_dev *dev)
+static int i2c_dw_init_master(struct dw_i2c_dev *dev)
 {
 	u32 hcnt, lcnt;
 	u32 reg, comp_param1;
@@ -344,8 +70,8 @@ int i2c_dw_init(struct dw_i2c_dev *dev)
 		/* Configure register access mode 16bit */
 		dev->flags |= ACCESS_16BIT;
 	} else if (reg != DW_IC_COMP_TYPE_VALUE) {
-		dev_err(dev->dev, "Unknown Synopsys component type: "
-			"0x%08x\n", reg);
+		dev_err(dev->dev,
+			"Unknown Synopsys component type: 0x%08x\n", reg);
 		i2c_dw_release_lock(dev);
 		return -ENODEV;
 	}
@@ -355,7 +81,7 @@ int i2c_dw_init(struct dw_i2c_dev *dev)
 	/* Disable the adapter */
 	__i2c_dw_enable_and_wait(dev, false);
 
-	/* set standard and fast speed deviders for high/low periods */
+	/* Set standard and fast speed deviders for high/low periods */
 
 	sda_falling_time = dev->sda_falling_time ?: 300; /* ns */
 	scl_falling_time = dev->scl_falling_time ?: 300; /* ns */
@@ -440,37 +166,11 @@ int i2c_dw_init(struct dw_i2c_dev *dev)
 			"Hardware too old to adjust SDA hold time.\n");
 	}
 
-	/* Configure Tx/Rx FIFO threshold levels */
-	dw_writel(dev, dev->tx_fifo_depth / 2, DW_IC_TX_TL);
-	dw_writel(dev, 0, DW_IC_RX_TL);
-
-	/* configure the i2c master */
-	dw_writel(dev, dev->master_cfg , DW_IC_CON);
-
+	i2c_dw_configure_fifo_master(dev);
 	i2c_dw_release_lock(dev);
 
 	return 0;
 }
-EXPORT_SYMBOL_GPL(i2c_dw_init);
-
-/*
- * Waiting for bus not busy
- */
-static int i2c_dw_wait_bus_not_busy(struct dw_i2c_dev *dev)
-{
-	int timeout = TIMEOUT;
-
-	while (dw_readl(dev, DW_IC_STATUS) & DW_IC_STATUS_ACTIVITY) {
-		if (timeout <= 0) {
-			dev_warn(dev->dev, "timeout waiting for bus ready\n");
-			return -ETIMEDOUT;
-		}
-		timeout--;
-		usleep_range(1000, 1100);
-	}
-
-	return 0;
-}
 
 static void i2c_dw_xfer_init(struct dw_i2c_dev *dev)
 {
@@ -480,7 +180,7 @@ static void i2c_dw_xfer_init(struct dw_i2c_dev *dev)
 	/* Disable the adapter */
 	__i2c_dw_enable_and_wait(dev, false);
 
-	/* if the slave address is ten bit address, enable 10BITADDR */
+	/* If the slave address is ten bit address, enable 10BITADDR */
 	ic_con = dw_readl(dev, DW_IC_CON);
 	if (msgs[dev->msg_write_idx].flags & I2C_M_TEN) {
 		ic_con |= DW_IC_CON_10BITADDR_MASTER;
@@ -503,7 +203,7 @@ static void i2c_dw_xfer_init(struct dw_i2c_dev *dev)
 	 */
 	dw_writel(dev, msgs[dev->msg_write_idx].addr | ic_tar, DW_IC_TAR);
 
-	/* enforce disabled interrupts (due to HW issues) */
+	/* Enforce disabled interrupts (due to HW issues) */
 	i2c_dw_disable_int(dev);
 
 	/* Enable the adapter */
@@ -511,7 +211,7 @@ static void i2c_dw_xfer_init(struct dw_i2c_dev *dev)
 
 	/* Clear and enable interrupts */
 	dw_readl(dev, DW_IC_CLR_INTR);
-	dw_writel(dev, DW_IC_INTR_DEFAULT_MASK, DW_IC_INTR_MASK);
+	dw_writel(dev, DW_IC_INTR_MASTER_MASK, DW_IC_INTR_MASK);
 }
 
 /*
@@ -531,15 +231,15 @@ i2c_dw_xfer_msg(struct dw_i2c_dev *dev)
 	u8 *buf = dev->tx_buf;
 	bool need_restart = false;
 
-	intr_mask = DW_IC_INTR_DEFAULT_MASK;
+	intr_mask = DW_IC_INTR_MASTER_MASK;
 
 	for (; dev->msg_write_idx < dev->msgs_num; dev->msg_write_idx++) {
 		u32 flags = msgs[dev->msg_write_idx].flags;
 
 		/*
-		 * if target address has changed, we need to
-		 * reprogram the target address in the i2c
-		 * adapter when we are done with this transfer
+		 * If target address has changed, we need to
+		 * reprogram the target address in the I2C
+		 * adapter when we are done with this transfer.
 		 */
 		if (msgs[dev->msg_write_idx].addr != addr) {
 			dev_err(dev->dev,
@@ -583,7 +283,7 @@ i2c_dw_xfer_msg(struct dw_i2c_dev *dev)
 			 */
 
 			/*
-			 * i2c-core.c always sets the buffer length of
+			 * i2c-core always sets the buffer length of
 			 * I2C_FUNC_SMBUS_BLOCK_DATA to 1. The length will
 			 * be adjusted when receiving the first byte.
 			 * Thus we can't stop the transaction here.
@@ -599,7 +299,7 @@ i2c_dw_xfer_msg(struct dw_i2c_dev *dev)
 
 			if (msgs[dev->msg_write_idx].flags & I2C_M_RD) {
 
-				/* avoid rx buffer overrun */
+				/* Avoid rx buffer overrun */
 				if (dev->rx_outstanding >= dev->rx_fifo_depth)
 					break;
 
@@ -704,31 +404,8 @@ i2c_dw_read(struct dw_i2c_dev *dev)
 	}
 }
 
-static int i2c_dw_handle_tx_abort(struct dw_i2c_dev *dev)
-{
-	unsigned long abort_source = dev->abort_source;
-	int i;
-
-	if (abort_source & DW_IC_TX_ABRT_NOACK) {
-		for_each_set_bit(i, &abort_source, ARRAY_SIZE(abort_sources))
-			dev_dbg(dev->dev,
-				"%s: %s\n", __func__, abort_sources[i]);
-		return -EREMOTEIO;
-	}
-
-	for_each_set_bit(i, &abort_source, ARRAY_SIZE(abort_sources))
-		dev_err(dev->dev, "%s: %s\n", __func__, abort_sources[i]);
-
-	if (abort_source & DW_IC_TX_ARB_LOST)
-		return -EAGAIN;
-	else if (abort_source & DW_IC_TX_ABRT_GCALL_READ)
-		return -EINVAL; /* wrong msgs[] data */
-	else
-		return -EIO;
-}
-
 /*
- * Prepare controller for a transaction and call i2c_dw_xfer_msg
+ * Prepare controller for a transaction and call i2c_dw_xfer_msg.
  */
 static int
 i2c_dw_xfer(struct i2c_adapter *adap, struct i2c_msg msgs[], int num)
@@ -759,14 +436,14 @@ i2c_dw_xfer(struct i2c_adapter *adap, struct i2c_msg msgs[], int num)
 	if (ret < 0)
 		goto done;
 
-	/* start the transfers */
+	/* Start the transfers */
 	i2c_dw_xfer_init(dev);
 
-	/* wait for tx to complete */
+	/* Wait for tx to complete */
 	if (!wait_for_completion_timeout(&dev->cmd_complete, adap->timeout)) {
 		dev_err(dev->dev, "controller timed out\n");
 		/* i2c_dw_init implicitly disables the adapter */
-		i2c_dw_init(dev);
+		i2c_dw_init_master(dev);
 		ret = -ETIMEDOUT;
 		goto done;
 	}
@@ -786,7 +463,7 @@ i2c_dw_xfer(struct i2c_adapter *adap, struct i2c_msg msgs[], int num)
 		goto done;
 	}
 
-	/* no error */
+	/* No error */
 	if (likely(!dev->cmd_err && !dev->status)) {
 		ret = num;
 		goto done;
@@ -814,15 +491,9 @@ done_nolock:
 	return ret;
 }
 
-static u32 i2c_dw_func(struct i2c_adapter *adap)
-{
-	struct dw_i2c_dev *dev = i2c_get_adapdata(adap);
-	return dev->functionality;
-}
-
 static const struct i2c_algorithm i2c_dw_algo = {
-	.master_xfer	= i2c_dw_xfer,
-	.functionality	= i2c_dw_func,
+	.master_xfer = i2c_dw_xfer,
+	.functionality = i2c_dw_func,
 };
 
 static u32 i2c_dw_read_clear_intrbits(struct dw_i2c_dev *dev)
@@ -881,29 +552,21 @@ static u32 i2c_dw_read_clear_intrbits(struct dw_i2c_dev *dev)
 }
 
 /*
- * Interrupt service routine. This gets called whenever an I2C interrupt
+ * Interrupt service routine. This gets called whenever an I2C master interrupt
  * occurs.
  */
-static irqreturn_t i2c_dw_isr(int this_irq, void *dev_id)
+static int i2c_dw_irq_handler_master(struct dw_i2c_dev *dev)
 {
-	struct dw_i2c_dev *dev = dev_id;
-	u32 stat, enabled;
-
-	enabled = dw_readl(dev, DW_IC_ENABLE);
-	stat = dw_readl(dev, DW_IC_RAW_INTR_STAT);
-	dev_dbg(dev->dev, "%s: enabled=%#x stat=%#x\n", __func__, enabled, stat);
-	if (!enabled || !(stat & ~DW_IC_INTR_ACTIVITY))
-		return IRQ_NONE;
+	u32 stat;
 
 	stat = i2c_dw_read_clear_intrbits(dev);
-
 	if (stat & DW_IC_INTR_TX_ABRT) {
 		dev->cmd_err |= DW_IC_ERR_TX_ABRT;
 		dev->status = STATUS_IDLE;
 
 		/*
 		 * Anytime TX_ABRT is set, the contents of the tx/rx
-		 * buffers are flushed.  Make sure to skip them.
+		 * buffers are flushed. Make sure to skip them.
 		 */
 		dw_writel(dev, 0, DW_IC_INTR_MASK);
 		goto tx_aborted;
@@ -925,49 +588,46 @@ tx_aborted:
 	if ((stat & (DW_IC_INTR_TX_ABRT | DW_IC_INTR_STOP_DET)) || dev->msg_err)
 		complete(&dev->cmd_complete);
 	else if (unlikely(dev->flags & ACCESS_INTR_MASK)) {
-		/* workaround to trigger pending interrupt */
+		/* Workaround to trigger pending interrupt */
 		stat = dw_readl(dev, DW_IC_INTR_MASK);
 		i2c_dw_disable_int(dev);
 		dw_writel(dev, stat, DW_IC_INTR_MASK);
 	}
 
-	return IRQ_HANDLED;
+	return 0;
 }
 
-void i2c_dw_disable(struct dw_i2c_dev *dev)
+static irqreturn_t i2c_dw_isr(int this_irq, void *dev_id)
 {
-	/* Disable controller */
-	__i2c_dw_enable_and_wait(dev, false);
+	struct dw_i2c_dev *dev = dev_id;
+	u32 stat, enabled;
 
-	/* Disable all interupts */
-	dw_writel(dev, 0, DW_IC_INTR_MASK);
-	dw_readl(dev, DW_IC_CLR_INTR);
-}
-EXPORT_SYMBOL_GPL(i2c_dw_disable);
+	enabled = dw_readl(dev, DW_IC_ENABLE);
+	stat = dw_readl(dev, DW_IC_RAW_INTR_STAT);
+	dev_dbg(dev->dev, "enabled=%#x stat=%#x\n", enabled, stat);
+	if (!enabled || !(stat & ~DW_IC_INTR_ACTIVITY))
+		return IRQ_NONE;
 
-void i2c_dw_disable_int(struct dw_i2c_dev *dev)
-{
-	dw_writel(dev, 0, DW_IC_INTR_MASK);
-}
-EXPORT_SYMBOL_GPL(i2c_dw_disable_int);
+	i2c_dw_irq_handler_master(dev);
 
-u32 i2c_dw_read_comp_param(struct dw_i2c_dev *dev)
-{
-	return dw_readl(dev, DW_IC_COMP_PARAM_1);
+	return IRQ_HANDLED;
 }
-EXPORT_SYMBOL_GPL(i2c_dw_read_comp_param);
 
 int i2c_dw_probe(struct dw_i2c_dev *dev)
 {
 	struct i2c_adapter *adap = &dev->adapter;
 	unsigned long irq_flags;
-	int r;
+	int ret;
 
 	init_completion(&dev->cmd_complete);
 
-	r = i2c_dw_init(dev);
-	if (r)
-		return r;
+	dev->init = i2c_dw_init_master;
+	dev->disable = i2c_dw_disable;
+	dev->disable_int = i2c_dw_disable_int;
+
+	ret = dev->init(dev);
+	if (ret)
+		return ret;
 
 	snprintf(adap->name, sizeof(adap->name),
 		 "Synopsys DesignWare I2C adapter");
@@ -984,12 +644,12 @@ int i2c_dw_probe(struct dw_i2c_dev *dev)
 	}
 
 	i2c_dw_disable_int(dev);
-	r = devm_request_irq(dev->dev, dev->irq, i2c_dw_isr, irq_flags,
-			     dev_name(dev->dev), dev);
-	if (r) {
+	ret = devm_request_irq(dev->dev, dev->irq, i2c_dw_isr, irq_flags,
+			       dev_name(dev->dev), dev);
+	if (ret) {
 		dev_err(dev->dev, "failure requesting irq %i: %d\n",
-			dev->irq, r);
-		return r;
+			dev->irq, ret);
+		return ret;
 	}
 
 	/*
@@ -999,14 +659,14 @@ int i2c_dw_probe(struct dw_i2c_dev *dev)
 	 * registered I2C slaves that do I2C transfers in their probe.
 	 */
 	pm_runtime_get_noresume(dev->dev);
-	r = i2c_add_numbered_adapter(adap);
-	if (r)
-		dev_err(dev->dev, "failure adding adapter: %d\n", r);
+	ret = i2c_add_numbered_adapter(adap);
+	if (ret)
+		dev_err(dev->dev, "failure adding adapter: %d\n", ret);
 	pm_runtime_put_noidle(dev->dev);
 
-	return r;
+	return ret;
 }
 EXPORT_SYMBOL_GPL(i2c_dw_probe);
 
-MODULE_DESCRIPTION("Synopsys DesignWare I2C bus adapter core");
+MODULE_DESCRIPTION("Synopsys DesignWare I2C bus master adapter");
 MODULE_LICENSE("GPL");
diff --git a/drivers/i2c/busses/i2c-designware-pcidrv.c b/drivers/i2c/busses/i2c-designware-pcidrv.c
index ed485b69b449..86e1bd0b82e9 100644
--- a/drivers/i2c/busses/i2c-designware-pcidrv.c
+++ b/drivers/i2c/busses/i2c-designware-pcidrv.c
@@ -187,16 +187,19 @@ static struct dw_pci_controller dw_pci_controllers[] = {
 static int i2c_dw_pci_suspend(struct device *dev)
 {
 	struct pci_dev *pdev = to_pci_dev(dev);
+	struct dw_i2c_dev *i_dev = pci_get_drvdata(pdev);
+
+	i_dev->disable(i_dev);
 
-	i2c_dw_disable(pci_get_drvdata(pdev));
 	return 0;
 }
 
 static int i2c_dw_pci_resume(struct device *dev)
 {
 	struct pci_dev *pdev = to_pci_dev(dev);
+	struct dw_i2c_dev *i_dev = pci_get_drvdata(pdev);
 
-	return i2c_dw_init(pci_get_drvdata(pdev));
+	return i_dev->init(i_dev);
 }
 #endif
 
@@ -296,7 +299,7 @@ static void i2c_dw_pci_remove(struct pci_dev *pdev)
 {
 	struct dw_i2c_dev *dev = pci_get_drvdata(pdev);
 
-	i2c_dw_disable(dev);
+	dev->disable(dev);
 	pm_runtime_forbid(&pdev->dev);
 	pm_runtime_get_noresume(&pdev->dev);
 
diff --git a/drivers/i2c/busses/i2c-designware-platdrv.c b/drivers/i2c/busses/i2c-designware-platdrv.c
index d1263b82d646..143a8fd582b4 100644
--- a/drivers/i2c/busses/i2c-designware-platdrv.c
+++ b/drivers/i2c/busses/i2c-designware-platdrv.c
@@ -1,5 +1,5 @@
 /*
- * Synopsys DesignWare I2C adapter driver (master only).
+ * Synopsys DesignWare I2C adapter driver.
  *
  * Based on the TI DAVINCI I2C adapter driver.
  *
@@ -21,27 +21,28 @@
  * ----------------------------------------------------------------------------
  *
  */
-#include <linux/kernel.h>
-#include <linux/module.h>
+#include <linux/acpi.h>
+#include <linux/clk-provider.h>
+#include <linux/clk.h>
 #include <linux/delay.h>
 #include <linux/dmi.h>
-#include <linux/i2c.h>
-#include <linux/clk.h>
-#include <linux/clk-provider.h>
-#include <linux/errno.h>
-#include <linux/sched.h>
 #include <linux/err.h>
+#include <linux/errno.h>
+#include <linux/i2c.h>
 #include <linux/interrupt.h>
+#include <linux/io.h>
+#include <linux/kernel.h>
+#include <linux/module.h>
 #include <linux/of.h>
+#include <linux/platform_data/i2c-designware.h>
 #include <linux/platform_device.h>
 #include <linux/pm.h>
 #include <linux/pm_runtime.h>
 #include <linux/property.h>
-#include <linux/io.h>
 #include <linux/reset.h>
+#include <linux/sched.h>
 #include <linux/slab.h>
-#include <linux/acpi.h>
-#include <linux/platform_data/i2c-designware.h>
+
 #include "i2c-designware-core.h"
 
 static u32 i2c_dw_get_clk_rate_khz(struct dw_i2c_dev *dev)
@@ -171,6 +172,49 @@ static inline int dw_i2c_acpi_configure(struct platform_device *pdev)
 }
 #endif
 
+static void i2c_dw_configure_master(struct dw_i2c_dev *dev)
+{
+	dev->functionality = I2C_FUNC_10BIT_ADDR | DW_IC_DEFAULT_FUNCTIONALITY;
+
+	dev->master_cfg = DW_IC_CON_MASTER | DW_IC_CON_SLAVE_DISABLE |
+			  DW_IC_CON_RESTART_EN;
+
+	dev->mode = DW_IC_MASTER;
+
+	switch (dev->clk_freq) {
+	case 100000:
+		dev->master_cfg |= DW_IC_CON_SPEED_STD;
+		break;
+	case 3400000:
+		dev->master_cfg |= DW_IC_CON_SPEED_HIGH;
+		break;
+	default:
+		dev->master_cfg |= DW_IC_CON_SPEED_FAST;
+	}
+}
+
+static void i2c_dw_configure_slave(struct dw_i2c_dev *dev)
+{
+	dev->functionality = I2C_FUNC_SLAVE | DW_IC_DEFAULT_FUNCTIONALITY;
+
+	dev->slave_cfg = DW_IC_CON_RX_FIFO_FULL_HLD_CTRL |
+			 DW_IC_CON_RESTART_EN | DW_IC_CON_STOP_DET_IFADDRESSED |
+			 DW_IC_CON_SPEED_FAST;
+
+	dev->mode = DW_IC_SLAVE;
+
+	switch (dev->clk_freq) {
+	case 100000:
+		dev->slave_cfg |= DW_IC_CON_SPEED_STD;
+		break;
+	case 3400000:
+		dev->slave_cfg |= DW_IC_CON_SPEED_HIGH;
+		break;
+	default:
+		dev->slave_cfg |= DW_IC_CON_SPEED_FAST;
+	}
+}
+
 static int i2c_dw_plat_prepare_clk(struct dw_i2c_dev *i_dev, bool prepare)
 {
 	if (IS_ERR(i_dev->clk))
@@ -209,11 +253,11 @@ static void dw_i2c_set_fifo_size(struct dw_i2c_dev *dev, int id)
 static int dw_i2c_plat_probe(struct platform_device *pdev)
 {
 	struct dw_i2c_platform_data *pdata = dev_get_platdata(&pdev->dev);
-	struct dw_i2c_dev *dev;
 	struct i2c_adapter *adap;
-	struct resource *mem;
-	int irq, r;
+	struct dw_i2c_dev *dev;
 	u32 acpi_speed, ht = 0;
+	struct resource *mem;
+	int irq, ret;
 
 	irq = platform_get_irq(pdev, 0);
 	if (irq < 0)
@@ -254,6 +298,9 @@ static int dw_i2c_plat_probe(struct platform_device *pdev)
 	}
 
 	acpi_speed = i2c_acpi_find_bus_speed(&pdev->dev);
+	/* Some broken DSTDs use 1MiHz instead of 1MHz */
+	if (acpi_speed == 1048576)
+		acpi_speed = 1000000;
 	/*
 	 * Find bus speed from the "clock-frequency" device property, ACPI
 	 * or by using fast mode if neither is set.
@@ -275,30 +322,20 @@ static int dw_i2c_plat_probe(struct platform_device *pdev)
 	if (dev->clk_freq != 100000 && dev->clk_freq != 400000
 	    && dev->clk_freq != 1000000 && dev->clk_freq != 3400000) {
 		dev_err(&pdev->dev,
-			"Only 100kHz, 400kHz, 1MHz and 3.4MHz supported");
-		r = -EINVAL;
+			"%d Hz is unsupported, only 100kHz, 400kHz, 1MHz and 3.4MHz are supported\n",
+			dev->clk_freq);
+		ret = -EINVAL;
 		goto exit_reset;
 	}
 
-	r = i2c_dw_probe_lock_support(dev);
-	if (r)
+	ret = i2c_dw_probe_lock_support(dev);
+	if (ret)
 		goto exit_reset;
 
-	dev->functionality = I2C_FUNC_10BIT_ADDR | DW_IC_DEFAULT_FUNCTIONALITY;
-
-	dev->master_cfg = DW_IC_CON_MASTER | DW_IC_CON_SLAVE_DISABLE |
-			  DW_IC_CON_RESTART_EN;
-
-	switch (dev->clk_freq) {
-	case 100000:
-		dev->master_cfg |= DW_IC_CON_SPEED_STD;
-		break;
-	case 3400000:
-		dev->master_cfg |= DW_IC_CON_SPEED_HIGH;
-		break;
-	default:
-		dev->master_cfg |= DW_IC_CON_SPEED_FAST;
-	}
+	if (i2c_detect_slave_mode(&pdev->dev))
+		i2c_dw_configure_slave(dev);
+	else
+		i2c_dw_configure_master(dev);
 
 	dev->clk = devm_clk_get(&pdev->dev, NULL);
 	if (!i2c_dw_plat_prepare_clk(dev, true)) {
@@ -327,11 +364,15 @@ static int dw_i2c_plat_probe(struct platform_device *pdev)
 		pm_runtime_enable(&pdev->dev);
 	}
 
-	r = i2c_dw_probe(dev);
-	if (r)
+	if (dev->mode == DW_IC_SLAVE)
+		ret = i2c_dw_probe_slave(dev);
+	else
+		ret = i2c_dw_probe(dev);
+
+	if (ret)
 		goto exit_probe;
 
-	return r;
+	return ret;
 
 exit_probe:
 	if (!dev->pm_disabled)
@@ -339,7 +380,7 @@ exit_probe:
 exit_reset:
 	if (!IS_ERR_OR_NULL(dev->rst))
 		reset_control_assert(dev->rst);
-	return r;
+	return ret;
 }
 
 static int dw_i2c_plat_remove(struct platform_device *pdev)
@@ -350,7 +391,7 @@ static int dw_i2c_plat_remove(struct platform_device *pdev)
 
 	i2c_del_adapter(&dev->adapter);
 
-	i2c_dw_disable(dev);
+	dev->disable(dev);
 
 	pm_runtime_dont_use_autosuspend(&pdev->dev);
 	pm_runtime_put_sync(&pdev->dev);
@@ -394,7 +435,7 @@ static int dw_i2c_plat_suspend(struct device *dev)
 	struct platform_device *pdev = to_platform_device(dev);
 	struct dw_i2c_dev *i_dev = platform_get_drvdata(pdev);
 
-	i2c_dw_disable(i_dev);
+	i_dev->disable(i_dev);
 	i2c_dw_plat_prepare_clk(i_dev, false);
 
 	return 0;
@@ -406,7 +447,7 @@ static int dw_i2c_plat_resume(struct device *dev)
 	struct dw_i2c_dev *i_dev = platform_get_drvdata(pdev);
 
 	i2c_dw_plat_prepare_clk(i_dev, true);
-	i2c_dw_init(i_dev);
+	i_dev->init(i_dev);
 
 	return 0;
 }
@@ -423,7 +464,7 @@ static const struct dev_pm_ops dw_i2c_dev_pm_ops = {
 #define DW_I2C_DEV_PMOPS NULL
 #endif
 
-/* work with hotplug and coldplug */
+/* Work with hotplug and coldplug */
 MODULE_ALIAS("platform:i2c_designware");
 
 static struct platform_driver dw_i2c_driver = {
diff --git a/drivers/i2c/busses/i2c-designware-slave.c b/drivers/i2c/busses/i2c-designware-slave.c
new file mode 100644
index 000000000000..0548c7ea578c
--- /dev/null
+++ b/drivers/i2c/busses/i2c-designware-slave.c
@@ -0,0 +1,393 @@
+/*
+ * Synopsys DesignWare I2C adapter driver (slave only).
+ *
+ * Based on the Synopsys DesignWare I2C adapter driver (master).
+ *
+ * Copyright (C) 2016 Synopsys Inc.
+ *
+ * ----------------------------------------------------------------------------
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ * ----------------------------------------------------------------------------
+ *
+ */
+#include <linux/delay.h>
+#include <linux/err.h>
+#include <linux/errno.h>
+#include <linux/i2c.h>
+#include <linux/interrupt.h>
+#include <linux/io.h>
+#include <linux/module.h>
+#include <linux/pm_runtime.h>
+
+#include "i2c-designware-core.h"
+
+static void i2c_dw_configure_fifo_slave(struct dw_i2c_dev *dev)
+{
+	/* Configure Tx/Rx FIFO threshold levels. */
+	dw_writel(dev, 0, DW_IC_TX_TL);
+	dw_writel(dev, 0, DW_IC_RX_TL);
+
+	/* Configure the I2C slave. */
+	dw_writel(dev, dev->slave_cfg, DW_IC_CON);
+	dw_writel(dev, DW_IC_INTR_SLAVE_MASK, DW_IC_INTR_MASK);
+}
+
+/**
+ * i2c_dw_init_slave() - Initialize the designware i2c slave hardware
+ * @dev: device private data
+ *
+ * This function configures and enables the I2C in slave mode.
+ * This function is called during I2C init function, and in case of timeout at
+ * run time.
+ */
+static int i2c_dw_init_slave(struct dw_i2c_dev *dev)
+{
+	u32 sda_falling_time, scl_falling_time;
+	u32 reg, comp_param1;
+	u32 hcnt, lcnt;
+	int ret;
+
+	ret = i2c_dw_acquire_lock(dev);
+	if (ret)
+		return ret;
+
+	reg = dw_readl(dev, DW_IC_COMP_TYPE);
+	if (reg == ___constant_swab32(DW_IC_COMP_TYPE_VALUE)) {
+		/* Configure register endianness access. */
+		dev->flags |= ACCESS_SWAP;
+	} else if (reg == (DW_IC_COMP_TYPE_VALUE & 0x0000ffff)) {
+		/* Configure register access mode 16bit. */
+		dev->flags |= ACCESS_16BIT;
+	} else if (reg != DW_IC_COMP_TYPE_VALUE) {
+		dev_err(dev->dev,
+			"Unknown Synopsys component type: 0x%08x\n", reg);
+		i2c_dw_release_lock(dev);
+		return -ENODEV;
+	}
+
+	comp_param1 = dw_readl(dev, DW_IC_COMP_PARAM_1);
+
+	/* Disable the adapter. */
+	__i2c_dw_enable_and_wait(dev, false);
+
+	/* Set standard and fast speed deviders for high/low periods. */
+	sda_falling_time = dev->sda_falling_time ?: 300; /* ns */
+	scl_falling_time = dev->scl_falling_time ?: 300; /* ns */
+
+	/* Set SCL timing parameters for standard-mode. */
+	if (dev->ss_hcnt && dev->ss_lcnt) {
+		hcnt = dev->ss_hcnt;
+		lcnt = dev->ss_lcnt;
+	} else {
+		hcnt = i2c_dw_scl_hcnt(i2c_dw_clk_rate(dev),
+				       4000,	/* tHD;STA = tHIGH = 4.0 us */
+				       sda_falling_time,
+				       0,	/* 0: DW default, 1: Ideal */
+				       0);	/* No offset */
+		lcnt = i2c_dw_scl_lcnt(i2c_dw_clk_rate(dev),
+				       4700,	/* tLOW = 4.7 us */
+				       scl_falling_time,
+				       0);	/* No offset */
+	}
+	dw_writel(dev, hcnt, DW_IC_SS_SCL_HCNT);
+	dw_writel(dev, lcnt, DW_IC_SS_SCL_LCNT);
+	dev_dbg(dev->dev, "Standard-mode HCNT:LCNT = %d:%d\n", hcnt, lcnt);
+
+	/* Set SCL timing parameters for fast-mode or fast-mode plus. */
+	if ((dev->clk_freq == 1000000) && dev->fp_hcnt && dev->fp_lcnt) {
+		hcnt = dev->fp_hcnt;
+		lcnt = dev->fp_lcnt;
+	} else if (dev->fs_hcnt && dev->fs_lcnt) {
+		hcnt = dev->fs_hcnt;
+		lcnt = dev->fs_lcnt;
+	} else {
+		hcnt = i2c_dw_scl_hcnt(i2c_dw_clk_rate(dev),
+				       600,	/* tHD;STA = tHIGH = 0.6 us */
+				       sda_falling_time,
+				       0,	/* 0: DW default, 1: Ideal */
+				       0);	/* No offset */
+		lcnt = i2c_dw_scl_lcnt(i2c_dw_clk_rate(dev),
+				       1300,	/* tLOW = 1.3 us */
+				       scl_falling_time,
+				       0);	/* No offset */
+	}
+	dw_writel(dev, hcnt, DW_IC_FS_SCL_HCNT);
+	dw_writel(dev, lcnt, DW_IC_FS_SCL_LCNT);
+	dev_dbg(dev->dev, "Fast-mode HCNT:LCNT = %d:%d\n", hcnt, lcnt);
+
+	if ((dev->slave_cfg & DW_IC_CON_SPEED_MASK) ==
+		DW_IC_CON_SPEED_HIGH) {
+		if ((comp_param1 & DW_IC_COMP_PARAM_1_SPEED_MODE_MASK)
+			!= DW_IC_COMP_PARAM_1_SPEED_MODE_HIGH) {
+			dev_err(dev->dev, "High Speed not supported!\n");
+			dev->slave_cfg &= ~DW_IC_CON_SPEED_MASK;
+			dev->slave_cfg |= DW_IC_CON_SPEED_FAST;
+		} else if (dev->hs_hcnt && dev->hs_lcnt) {
+			hcnt = dev->hs_hcnt;
+			lcnt = dev->hs_lcnt;
+			dw_writel(dev, hcnt, DW_IC_HS_SCL_HCNT);
+			dw_writel(dev, lcnt, DW_IC_HS_SCL_LCNT);
+			dev_dbg(dev->dev, "HighSpeed-mode HCNT:LCNT = %d:%d\n",
+				hcnt, lcnt);
+		}
+	}
+
+	/* Configure SDA Hold Time if required. */
+	reg = dw_readl(dev, DW_IC_COMP_VERSION);
+	if (reg >= DW_IC_SDA_HOLD_MIN_VERS) {
+		if (!dev->sda_hold_time) {
+			/* Keep previous hold time setting if no one set it. */
+			dev->sda_hold_time = dw_readl(dev, DW_IC_SDA_HOLD);
+		}
+		/*
+		 * Workaround for avoiding TX arbitration lost in case I2C
+		 * slave pulls SDA down "too quickly" after falling egde of
+		 * SCL by enabling non-zero SDA RX hold. Specification says it
+		 * extends incoming SDA low to high transition while SCL is
+		 * high but it apprears to help also above issue.
+		 */
+		if (!(dev->sda_hold_time & DW_IC_SDA_HOLD_RX_MASK))
+			dev->sda_hold_time |= 1 << DW_IC_SDA_HOLD_RX_SHIFT;
+		dw_writel(dev, dev->sda_hold_time, DW_IC_SDA_HOLD);
+	} else {
+		dev_warn(dev->dev,
+			 "Hardware too old to adjust SDA hold time.\n");
+	}
+
+	i2c_dw_configure_fifo_slave(dev);
+	i2c_dw_release_lock(dev);
+
+	return 0;
+}
+
+static int i2c_dw_reg_slave(struct i2c_client *slave)
+{
+	struct dw_i2c_dev *dev = i2c_get_adapdata(slave->adapter);
+
+	if (dev->slave)
+		return -EBUSY;
+	if (slave->flags & I2C_CLIENT_TEN)
+		return -EAFNOSUPPORT;
+	/*
+	 * Set slave address in the IC_SAR register,
+	 * the address to which the DW_apb_i2c responds.
+	 */
+	__i2c_dw_enable(dev, false);
+	dw_writel(dev, slave->addr, DW_IC_SAR);
+	dev->slave = slave;
+
+	__i2c_dw_enable(dev, true);
+
+	dev->cmd_err = 0;
+	dev->msg_write_idx = 0;
+	dev->msg_read_idx = 0;
+	dev->msg_err = 0;
+	dev->status = STATUS_IDLE;
+	dev->abort_source = 0;
+	dev->rx_outstanding = 0;
+
+	return 0;
+}
+
+static int i2c_dw_unreg_slave(struct i2c_client *slave)
+{
+	struct dw_i2c_dev *dev = i2c_get_adapdata(slave->adapter);
+
+	dev->disable_int(dev);
+	dev->disable(dev);
+	dev->slave = NULL;
+
+	return 0;
+}
+
+static u32 i2c_dw_read_clear_intrbits_slave(struct dw_i2c_dev *dev)
+{
+	u32 stat;
+
+	/*
+	 * The IC_INTR_STAT register just indicates "enabled" interrupts.
+	 * Ths unmasked raw version of interrupt status bits are available
+	 * in the IC_RAW_INTR_STAT register.
+	 *
+	 * That is,
+	 *   stat = dw_readl(IC_INTR_STAT);
+	 * equals to,
+	 *   stat = dw_readl(IC_RAW_INTR_STAT) & dw_readl(IC_INTR_MASK);
+	 *
+	 * The raw version might be useful for debugging purposes.
+	 */
+	stat = dw_readl(dev, DW_IC_INTR_STAT);
+
+	/*
+	 * Do not use the IC_CLR_INTR register to clear interrupts, or
+	 * you'll miss some interrupts, triggered during the period from
+	 * dw_readl(IC_INTR_STAT) to dw_readl(IC_CLR_INTR).
+	 *
+	 * Instead, use the separately-prepared IC_CLR_* registers.
+	 */
+	if (stat & DW_IC_INTR_TX_ABRT)
+		dw_readl(dev, DW_IC_CLR_TX_ABRT);
+	if (stat & DW_IC_INTR_RX_UNDER)
+		dw_readl(dev, DW_IC_CLR_RX_UNDER);
+	if (stat & DW_IC_INTR_RX_OVER)
+		dw_readl(dev, DW_IC_CLR_RX_OVER);
+	if (stat & DW_IC_INTR_TX_OVER)
+		dw_readl(dev, DW_IC_CLR_TX_OVER);
+	if (stat & DW_IC_INTR_RX_DONE)
+		dw_readl(dev, DW_IC_CLR_RX_DONE);
+	if (stat & DW_IC_INTR_ACTIVITY)
+		dw_readl(dev, DW_IC_CLR_ACTIVITY);
+	if (stat & DW_IC_INTR_STOP_DET)
+		dw_readl(dev, DW_IC_CLR_STOP_DET);
+	if (stat & DW_IC_INTR_START_DET)
+		dw_readl(dev, DW_IC_CLR_START_DET);
+	if (stat & DW_IC_INTR_GEN_CALL)
+		dw_readl(dev, DW_IC_CLR_GEN_CALL);
+
+	return stat;
+}
+
+/*
+ * Interrupt service routine. This gets called whenever an I2C slave interrupt
+ * occurs.
+ */
+
+static int i2c_dw_irq_handler_slave(struct dw_i2c_dev *dev)
+{
+	u32 raw_stat, stat, enabled;
+	u8 val, slave_activity;
+
+	stat = dw_readl(dev, DW_IC_INTR_STAT);
+	enabled = dw_readl(dev, DW_IC_ENABLE);
+	raw_stat = dw_readl(dev, DW_IC_RAW_INTR_STAT);
+	slave_activity = ((dw_readl(dev, DW_IC_STATUS) &
+		DW_IC_STATUS_SLAVE_ACTIVITY) >> 6);
+
+	if (!enabled || !(raw_stat & ~DW_IC_INTR_ACTIVITY))
+		return 0;
+
+	dev_dbg(dev->dev,
+		"%#x STATUS SLAVE_ACTIVITY=%#x : RAW_INTR_STAT=%#x : INTR_STAT=%#x\n",
+		enabled, slave_activity, raw_stat, stat);
+
+	if ((stat & DW_IC_INTR_RX_FULL) && (stat & DW_IC_INTR_STOP_DET))
+		i2c_slave_event(dev->slave, I2C_SLAVE_WRITE_REQUESTED, &val);
+
+	if (stat & DW_IC_INTR_RD_REQ) {
+		if (slave_activity) {
+			if (stat & DW_IC_INTR_RX_FULL) {
+				val = dw_readl(dev, DW_IC_DATA_CMD);
+
+				if (!i2c_slave_event(dev->slave,
+						     I2C_SLAVE_WRITE_RECEIVED,
+						     &val)) {
+					dev_vdbg(dev->dev, "Byte %X acked!",
+						 val);
+				}
+				dw_readl(dev, DW_IC_CLR_RD_REQ);
+				stat = i2c_dw_read_clear_intrbits_slave(dev);
+			} else {
+				dw_readl(dev, DW_IC_CLR_RD_REQ);
+				dw_readl(dev, DW_IC_CLR_RX_UNDER);
+				stat = i2c_dw_read_clear_intrbits_slave(dev);
+			}
+			if (!i2c_slave_event(dev->slave,
+					     I2C_SLAVE_READ_REQUESTED,
+					     &val))
+				dw_writel(dev, val, DW_IC_DATA_CMD);
+		}
+	}
+
+	if (stat & DW_IC_INTR_RX_DONE) {
+		if (!i2c_slave_event(dev->slave, I2C_SLAVE_READ_PROCESSED,
+				     &val))
+			dw_readl(dev, DW_IC_CLR_RX_DONE);
+
+		i2c_slave_event(dev->slave, I2C_SLAVE_STOP, &val);
+		stat = i2c_dw_read_clear_intrbits_slave(dev);
+		return 1;
+	}
+
+	if (stat & DW_IC_INTR_RX_FULL) {
+		val = dw_readl(dev, DW_IC_DATA_CMD);
+		if (!i2c_slave_event(dev->slave, I2C_SLAVE_WRITE_RECEIVED,
+				     &val))
+			dev_vdbg(dev->dev, "Byte %X acked!", val);
+	} else {
+		i2c_slave_event(dev->slave, I2C_SLAVE_STOP, &val);
+		stat = i2c_dw_read_clear_intrbits_slave(dev);
+	}
+
+	return 1;
+}
+
+static irqreturn_t i2c_dw_isr_slave(int this_irq, void *dev_id)
+{
+	struct dw_i2c_dev *dev = dev_id;
+	int ret;
+
+	i2c_dw_read_clear_intrbits_slave(dev);
+	ret = i2c_dw_irq_handler_slave(dev);
+	if (ret > 0)
+		complete(&dev->cmd_complete);
+
+	return IRQ_RETVAL(ret);
+}
+
+static struct i2c_algorithm i2c_dw_algo = {
+	.functionality = i2c_dw_func,
+	.reg_slave = i2c_dw_reg_slave,
+	.unreg_slave = i2c_dw_unreg_slave,
+};
+
+int i2c_dw_probe_slave(struct dw_i2c_dev *dev)
+{
+	struct i2c_adapter *adap = &dev->adapter;
+	int ret;
+
+	init_completion(&dev->cmd_complete);
+
+	dev->init = i2c_dw_init_slave;
+	dev->disable = i2c_dw_disable;
+	dev->disable_int = i2c_dw_disable_int;
+
+	ret = dev->init(dev);
+	if (ret)
+		return ret;
+
+	snprintf(adap->name, sizeof(adap->name),
+		 "Synopsys DesignWare I2C Slave adapter");
+	adap->retries = 3;
+	adap->algo = &i2c_dw_algo;
+	adap->dev.parent = dev->dev;
+	i2c_set_adapdata(adap, dev);
+
+	ret = devm_request_irq(dev->dev, dev->irq, i2c_dw_isr_slave,
+			       IRQF_SHARED, dev_name(dev->dev), dev);
+	if (ret) {
+		dev_err(dev->dev, "failure requesting irq %i: %d\n",
+			dev->irq, ret);
+		return ret;
+	}
+
+	ret = i2c_add_numbered_adapter(adap);
+	if (ret)
+		dev_err(dev->dev, "failure adding adapter: %d\n", ret);
+	pm_runtime_put_noidle(dev->dev);
+
+	return ret;
+}
+EXPORT_SYMBOL_GPL(i2c_dw_probe_slave);
+
+MODULE_AUTHOR("Luis Oliveira <lolivei@synopsys.com>");
+MODULE_DESCRIPTION("Synopsys DesignWare I2C bus slave adapter");
+MODULE_LICENSE("GPL v2");
diff --git a/drivers/i2c/busses/i2c-emev2.c b/drivers/i2c/busses/i2c-emev2.c
index 312912708854..d2e84480fbe9 100644
--- a/drivers/i2c/busses/i2c-emev2.c
+++ b/drivers/i2c/busses/i2c-emev2.c
@@ -375,7 +375,9 @@ static int em_i2c_probe(struct platform_device *pdev)
 	if (IS_ERR(priv->sclk))
 		return PTR_ERR(priv->sclk);
 
-	clk_prepare_enable(priv->sclk);
+	ret = clk_prepare_enable(priv->sclk);
+	if (ret)
+		return ret;
 
 	priv->adap.timeout = msecs_to_jiffies(100);
 	priv->adap.retries = 5;
diff --git a/drivers/i2c/busses/i2c-i801.c b/drivers/i2c/busses/i2c-i801.c
index 6484fa6dbb84..c9536e17d6ff 100644
--- a/drivers/i2c/busses/i2c-i801.c
+++ b/drivers/i2c/busses/i2c-i801.c
@@ -66,6 +66,8 @@
  * Lewisburg Supersku (PCH)	0xa223	32	hard	yes	yes	yes
  * Kaby Lake PCH-H (PCH)	0xa2a3	32	hard	yes	yes	yes
  * Gemini Lake (SOC)		0x31d4	32	hard	yes	yes	yes
+ * Cannon Lake-H (PCH)		0xa323	32	hard	yes	yes	yes
+ * Cannon Lake-LP (PCH)		0x9da3	32	hard	yes	yes	yes
  *
  * Features supported by this driver:
  * Software PEC				no
@@ -226,10 +228,12 @@
 #define PCI_DEVICE_ID_INTEL_LYNXPOINT_LP_SMBUS		0x9c22
 #define PCI_DEVICE_ID_INTEL_WILDCATPOINT_LP_SMBUS	0x9ca2
 #define PCI_DEVICE_ID_INTEL_SUNRISEPOINT_LP_SMBUS	0x9d23
+#define PCI_DEVICE_ID_INTEL_CANNONLAKE_LP_SMBUS		0x9da3
 #define PCI_DEVICE_ID_INTEL_SUNRISEPOINT_H_SMBUS	0xa123
 #define PCI_DEVICE_ID_INTEL_LEWISBURG_SMBUS		0xa1a3
 #define PCI_DEVICE_ID_INTEL_LEWISBURG_SSKU_SMBUS	0xa223
 #define PCI_DEVICE_ID_INTEL_KABYLAKE_PCH_H_SMBUS	0xa2a3
+#define PCI_DEVICE_ID_INTEL_CANNONLAKE_H_SMBUS		0xa323
 
 struct i801_mux_config {
 	char *gpio_chip;
@@ -1026,6 +1030,8 @@ static const struct pci_device_id i801_ids[] = {
 	{ PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_LEWISBURG_SMBUS) },
 	{ PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_LEWISBURG_SSKU_SMBUS) },
 	{ PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_KABYLAKE_PCH_H_SMBUS) },
+	{ PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_CANNONLAKE_H_SMBUS) },
+	{ PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_CANNONLAKE_LP_SMBUS) },
 	{ 0, }
 };
 
@@ -1499,6 +1505,8 @@ static int i801_probe(struct pci_dev *dev, const struct pci_device_id *id)
 	switch (dev->device) {
 	case PCI_DEVICE_ID_INTEL_SUNRISEPOINT_H_SMBUS:
 	case PCI_DEVICE_ID_INTEL_SUNRISEPOINT_LP_SMBUS:
+	case PCI_DEVICE_ID_INTEL_CANNONLAKE_H_SMBUS:
+	case PCI_DEVICE_ID_INTEL_CANNONLAKE_LP_SMBUS:
 	case PCI_DEVICE_ID_INTEL_LEWISBURG_SMBUS:
 	case PCI_DEVICE_ID_INTEL_LEWISBURG_SSKU_SMBUS:
 	case PCI_DEVICE_ID_INTEL_DNV_SMBUS:
diff --git a/drivers/i2c/busses/i2c-mxs.c b/drivers/i2c/busses/i2c-mxs.c
index 5738556b6aac..d4e8f1954f23 100644
--- a/drivers/i2c/busses/i2c-mxs.c
+++ b/drivers/i2c/busses/i2c-mxs.c
@@ -419,7 +419,7 @@ static int mxs_i2c_pio_setup_xfer(struct i2c_adapter *adap,
 
 		ret = mxs_i2c_pio_wait_xfer_end(i2c);
 		if (ret) {
-			dev_err(i2c->dev,
+			dev_dbg(i2c->dev,
 				"PIO: Failed to send SELECT command!\n");
 			goto cleanup;
 		}
@@ -431,7 +431,7 @@ static int mxs_i2c_pio_setup_xfer(struct i2c_adapter *adap,
 
 		ret = mxs_i2c_pio_wait_xfer_end(i2c);
 		if (ret) {
-			dev_err(i2c->dev,
+			dev_dbg(i2c->dev,
 				"PIO: Failed to send READ command!\n");
 			goto cleanup;
 		}
@@ -528,7 +528,7 @@ static int mxs_i2c_pio_setup_xfer(struct i2c_adapter *adap,
 			/* Wait for the end of the transfer. */
 			ret = mxs_i2c_pio_wait_xfer_end(i2c);
 			if (ret) {
-				dev_err(i2c->dev,
+				dev_dbg(i2c->dev,
 					"PIO: Failed to finish WRITE cmd!\n");
 				break;
 			}
diff --git a/drivers/i2c/busses/i2c-pca-platform.c b/drivers/i2c/busses/i2c-pca-platform.c
index 3bd2e7d06e4b..853a2abedb05 100644
--- a/drivers/i2c/busses/i2c-pca-platform.c
+++ b/drivers/i2c/busses/i2c-pca-platform.c
@@ -22,14 +22,17 @@
 #include <linux/i2c-algo-pca.h>
 #include <linux/i2c-pca-platform.h>
 #include <linux/gpio.h>
+#include <linux/gpio/consumer.h>
 #include <linux/io.h>
+#include <linux/of.h>
+#include <linux/of_device.h>
 
 #include <asm/irq.h>
 
 struct i2c_pca_pf_data {
 	void __iomem			*reg_base;
 	int				irq;	/* if 0, use polling */
-	int				gpio;
+	struct gpio_desc		*gpio;
 	wait_queue_head_t		wait;
 	struct i2c_adapter		adap;
 	struct i2c_algo_pca_data	algo_data;
@@ -104,17 +107,17 @@ static int i2c_pca_pf_waitforcompletion(void *pd)
 static void i2c_pca_pf_dummyreset(void *pd)
 {
 	struct i2c_pca_pf_data *i2c = pd;
-	printk(KERN_WARNING "%s: No reset-pin found. Chip may get stuck!\n",
-		i2c->adap.name);
+
+	dev_warn(&i2c->adap.dev, "No reset-pin found. Chip may get stuck!\n");
 }
 
 static void i2c_pca_pf_resetchip(void *pd)
 {
 	struct i2c_pca_pf_data *i2c = pd;
 
-	gpio_set_value(i2c->gpio, 0);
+	gpiod_set_value(i2c->gpio, 1);
 	ndelay(100);
-	gpio_set_value(i2c->gpio, 1);
+	gpiod_set_value(i2c->gpio, 0);
 }
 
 static irqreturn_t i2c_pca_pf_handler(int this_irq, void *dev_id)
@@ -136,36 +139,27 @@ static int i2c_pca_pf_probe(struct platform_device *pdev)
 	struct resource *res;
 	struct i2c_pca9564_pf_platform_data *platform_data =
 				dev_get_platdata(&pdev->dev);
+	struct device_node *np = pdev->dev.of_node;
 	int ret = 0;
 	int irq;
 
-	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
 	irq = platform_get_irq(pdev, 0);
 	/* If irq is 0, we do polling. */
+	if (irq < 0)
+		irq = 0;
 
-	if (res == NULL) {
-		ret = -ENODEV;
-		goto e_print;
-	}
+	i2c = devm_kzalloc(&pdev->dev, sizeof(*i2c), GFP_KERNEL);
+	if (!i2c)
+		return -ENOMEM;
 
-	if (!request_mem_region(res->start, resource_size(res), res->name)) {
-		ret = -ENOMEM;
-		goto e_print;
-	}
+	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+	i2c->reg_base = devm_ioremap_resource(&pdev->dev, res);
+	if (IS_ERR(i2c->reg_base))
+		return PTR_ERR(i2c->reg_base);
 
-	i2c = kzalloc(sizeof(struct i2c_pca_pf_data), GFP_KERNEL);
-	if (!i2c) {
-		ret = -ENOMEM;
-		goto e_alloc;
-	}
 
 	init_waitqueue_head(&i2c->wait);
 
-	i2c->reg_base = ioremap(res->start, resource_size(res));
-	if (!i2c->reg_base) {
-		ret = -ENOMEM;
-		goto e_remap;
-	}
 	i2c->io_base = res->start;
 	i2c->io_size = resource_size(res);
 	i2c->irq = irq;
@@ -177,20 +171,43 @@ static int i2c_pca_pf_probe(struct platform_device *pdev)
 		 (unsigned long) res->start);
 	i2c->adap.algo_data = &i2c->algo_data;
 	i2c->adap.dev.parent = &pdev->dev;
+	i2c->adap.dev.of_node = np;
 
 	if (platform_data) {
 		i2c->adap.timeout = platform_data->timeout;
 		i2c->algo_data.i2c_clock = platform_data->i2c_clock_speed;
-		i2c->gpio = platform_data->gpio;
+		if (gpio_is_valid(platform_data->gpio)) {
+			ret = devm_gpio_request_one(&pdev->dev,
+						    platform_data->gpio,
+						    GPIOF_ACTIVE_LOW,
+						    i2c->adap.name);
+			if (ret == 0) {
+				i2c->gpio = gpio_to_desc(platform_data->gpio);
+				gpiod_direction_output(i2c->gpio, 0);
+			} else {
+				dev_warn(&pdev->dev, "Registering gpio failed!\n");
+				i2c->gpio = NULL;
+			}
+		}
+	} else if (np) {
+		i2c->adap.timeout = HZ;
+		i2c->gpio = devm_gpiod_get_optional(&pdev->dev, "reset-gpios", GPIOD_OUT_LOW);
+		if (IS_ERR(i2c->gpio))
+			return PTR_ERR(i2c->gpio);
+		of_property_read_u32_index(np, "clock-frequency", 0,
+					   &i2c->algo_data.i2c_clock);
 	} else {
 		i2c->adap.timeout = HZ;
 		i2c->algo_data.i2c_clock = 59000;
-		i2c->gpio = -1;
+		i2c->gpio = NULL;
 	}
 
 	i2c->algo_data.data = i2c;
 	i2c->algo_data.wait_for_completion = i2c_pca_pf_waitforcompletion;
-	i2c->algo_data.reset_chip = i2c_pca_pf_dummyreset;
+	if (i2c->gpio)
+		i2c->algo_data.reset_chip = i2c_pca_pf_resetchip;
+	else
+		i2c->algo_data.reset_chip = i2c_pca_pf_dummyreset;
 
 	switch (res->flags & IORESOURCE_MEM_TYPE_MASK) {
 	case IORESOURCE_MEM_32BIT:
@@ -208,52 +225,22 @@ static int i2c_pca_pf_probe(struct platform_device *pdev)
 		break;
 	}
 
-	/* Use gpio_is_valid() when in mainline */
-	if (i2c->gpio > -1) {
-		ret = gpio_request(i2c->gpio, i2c->adap.name);
-		if (ret == 0) {
-			gpio_direction_output(i2c->gpio, 1);
-			i2c->algo_data.reset_chip = i2c_pca_pf_resetchip;
-		} else {
-			printk(KERN_WARNING "%s: Registering gpio failed!\n",
-				i2c->adap.name);
-			i2c->gpio = ret;
-		}
-	}
-
 	if (irq) {
-		ret = request_irq(irq, i2c_pca_pf_handler,
+		ret = devm_request_irq(&pdev->dev, irq, i2c_pca_pf_handler,
 			IRQF_TRIGGER_FALLING, pdev->name, i2c);
 		if (ret)
-			goto e_reqirq;
+			return ret;
 	}
 
-	if (i2c_pca_add_numbered_bus(&i2c->adap) < 0) {
-		ret = -ENODEV;
-		goto e_adapt;
-	}
+	ret = i2c_pca_add_numbered_bus(&i2c->adap);
+	if (ret)
+		return ret;
 
 	platform_set_drvdata(pdev, i2c);
 
-	printk(KERN_INFO "%s registered.\n", i2c->adap.name);
+	dev_info(&pdev->dev, "registered.\n");
 
 	return 0;
-
-e_adapt:
-	if (irq)
-		free_irq(irq, i2c);
-e_reqirq:
-	if (i2c->gpio > -1)
-		gpio_free(i2c->gpio);
-
-	iounmap(i2c->reg_base);
-e_remap:
-	kfree(i2c);
-e_alloc:
-	release_mem_region(res->start, resource_size(res));
-e_print:
-	printk(KERN_ERR "Registering PCA9564/PCA9665 FAILED! (%d)\n", ret);
-	return ret;
 }
 
 static int i2c_pca_pf_remove(struct platform_device *pdev)
@@ -262,24 +249,24 @@ static int i2c_pca_pf_remove(struct platform_device *pdev)
 
 	i2c_del_adapter(&i2c->adap);
 
-	if (i2c->irq)
-		free_irq(i2c->irq, i2c);
-
-	if (i2c->gpio > -1)
-		gpio_free(i2c->gpio);
-
-	iounmap(i2c->reg_base);
-	release_mem_region(i2c->io_base, i2c->io_size);
-	kfree(i2c);
-
 	return 0;
 }
 
+#ifdef CONFIG_OF
+static const struct of_device_id i2c_pca_of_match_table[] = {
+	{ .compatible = "nxp,pca9564" },
+	{ .compatible = "nxp,pca9665" },
+	{},
+};
+MODULE_DEVICE_TABLE(of, i2c_pca_of_match_table);
+#endif
+
 static struct platform_driver i2c_pca_pf_driver = {
 	.probe = i2c_pca_pf_probe,
 	.remove = i2c_pca_pf_remove,
 	.driver = {
 		.name = "i2c-pca-platform",
+		.of_match_table = of_match_ptr(i2c_pca_of_match_table),
 	},
 };
 
diff --git a/drivers/i2c/busses/i2c-rcar.c b/drivers/i2c/busses/i2c-rcar.c
index 8be3e6cb8fe6..93c1a54981df 100644
--- a/drivers/i2c/busses/i2c-rcar.c
+++ b/drivers/i2c/busses/i2c-rcar.c
@@ -1,5 +1,5 @@
 /*
- * Driver for the Renesas RCar I2C unit
+ * Driver for the Renesas R-Car I2C unit
  *
  * Copyright (C) 2014-15 Wolfram Sang <wsa@sang-engineering.com>
  * Copyright (C) 2011-2015 Renesas Electronics Corporation
@@ -783,7 +783,12 @@ static int rcar_unreg_slave(struct i2c_client *slave)
 
 static u32 rcar_i2c_func(struct i2c_adapter *adap)
 {
-	/* This HW can't do SMBUS_QUICK and NOSTART */
+	/*
+	 * This HW can't do:
+	 * I2C_SMBUS_QUICK (setting FSB during START didn't work)
+	 * I2C_M_NOSTART (automatically sends address after START)
+	 * I2C_M_IGNORE_NAK (automatically sends STOP after NAK)
+	 */
 	return I2C_FUNC_I2C | I2C_FUNC_SLAVE |
 		(I2C_FUNC_SMBUS_EMUL & ~I2C_FUNC_SMBUS_QUICK);
 }
diff --git a/drivers/i2c/busses/i2c-sh_mobile.c b/drivers/i2c/busses/i2c-sh_mobile.c
index 3d7559348745..2e097d97d258 100644
--- a/drivers/i2c/busses/i2c-sh_mobile.c
+++ b/drivers/i2c/busses/i2c-sh_mobile.c
@@ -24,7 +24,6 @@
 #include <linux/dma-mapping.h>
 #include <linux/err.h>
 #include <linux/i2c.h>
-#include <linux/i2c/i2c-sh_mobile.h>
 #include <linux/init.h>
 #include <linux/interrupt.h>
 #include <linux/io.h>
@@ -879,10 +878,10 @@ static int sh_mobile_i2c_hook_irqs(struct platform_device *dev, struct sh_mobile
 
 static int sh_mobile_i2c_probe(struct platform_device *dev)
 {
-	struct i2c_sh_mobile_platform_data *pdata = dev_get_platdata(&dev->dev);
 	struct sh_mobile_i2c_data *pd;
 	struct i2c_adapter *adap;
 	struct resource *res;
+	const struct of_device_id *match;
 	int ret;
 	u32 bus_speed;
 
@@ -910,30 +909,18 @@ static int sh_mobile_i2c_probe(struct platform_device *dev)
 	if (IS_ERR(pd->reg))
 		return PTR_ERR(pd->reg);
 
-	/* Use platform data bus speed or STANDARD_MODE */
 	ret = of_property_read_u32(dev->dev.of_node, "clock-frequency", &bus_speed);
 	pd->bus_speed = ret ? STANDARD_MODE : bus_speed;
-
 	pd->clks_per_count = 1;
 
-	if (dev->dev.of_node) {
-		const struct of_device_id *match;
-
-		match = of_match_device(sh_mobile_i2c_dt_ids, &dev->dev);
-		if (match) {
-			const struct sh_mobile_dt_config *config;
+	match = of_match_device(sh_mobile_i2c_dt_ids, &dev->dev);
+	if (match) {
+		const struct sh_mobile_dt_config *config = match->data;
 
-			config = match->data;
-			pd->clks_per_count = config->clks_per_count;
+		pd->clks_per_count = config->clks_per_count;
 
-			if (config->setup)
-				config->setup(pd);
-		}
-	} else {
-		if (pdata && pdata->bus_speed)
-			pd->bus_speed = pdata->bus_speed;
-		if (pdata && pdata->clks_per_count)
-			pd->clks_per_count = pdata->clks_per_count;
+		if (config->setup)
+			config->setup(pd);
 	}
 
 	/* The IIC blocks on SH-Mobile ARM processors
diff --git a/drivers/i2c/busses/i2c-xgene-slimpro.c b/drivers/i2c/busses/i2c-xgene-slimpro.c
index 6ba6c83ca8f1..7e89ba6fcf6f 100644
--- a/drivers/i2c/busses/i2c-xgene-slimpro.c
+++ b/drivers/i2c/busses/i2c-xgene-slimpro.c
@@ -22,10 +22,12 @@
  * using the APM X-Gene SLIMpro mailbox driver.
  *
  */
+#include <acpi/pcc.h>
 #include <linux/acpi.h>
 #include <linux/dma-mapping.h>
 #include <linux/i2c.h>
 #include <linux/interrupt.h>
+#include <linux/io.h>
 #include <linux/mailbox_client.h>
 #include <linux/module.h>
 #include <linux/of.h>
@@ -89,6 +91,8 @@
 	((addrlen << SLIMPRO_IIC_ADDRLEN_SHIFT) & SLIMPRO_IIC_ADDRLEN_MASK) | \
 	((datalen << SLIMPRO_IIC_DATALEN_SHIFT) & SLIMPRO_IIC_DATALEN_MASK))
 
+#define SLIMPRO_MSG_TYPE(v)             (((v) & 0xF0000000) >> 28)
+
 /*
  * Encode for upper address for block data
  */
@@ -99,19 +103,47 @@
 								& 0x3FF00000))
 #define SLIMPRO_IIC_ENCODE_ADDR(a)			((a) & 0x000FFFFF)
 
+#define SLIMPRO_IIC_MSG_DWORD_COUNT			3
+
+/* PCC related defines */
+#define PCC_SIGNATURE			0x50424300
+#define PCC_STS_CMD_COMPLETE		BIT(0)
+#define PCC_STS_SCI_DOORBELL		BIT(1)
+#define PCC_STS_ERR			BIT(2)
+#define PCC_STS_PLAT_NOTIFY		BIT(3)
+#define PCC_CMD_GENERATE_DB_INT		BIT(15)
+
 struct slimpro_i2c_dev {
 	struct i2c_adapter adapter;
 	struct device *dev;
 	struct mbox_chan *mbox_chan;
 	struct mbox_client mbox_client;
+	int mbox_idx;
 	struct completion rd_complete;
 	u8 dma_buffer[I2C_SMBUS_BLOCK_MAX + 1]; /* dma_buffer[0] is used for length */
 	u32 *resp_msg;
+	phys_addr_t comm_base_addr;
+	void *pcc_comm_addr;
 };
 
 #define to_slimpro_i2c_dev(cl)	\
 		container_of(cl, struct slimpro_i2c_dev, mbox_client)
 
+/*
+ * This function tests and clears a bitmask then returns its old value
+ */
+static u16 xgene_word_tst_and_clr(u16 *addr, u16 mask)
+{
+	u16 ret, val;
+
+	val = le16_to_cpu(READ_ONCE(*addr));
+	ret = val & mask;
+	val &= ~mask;
+	WRITE_ONCE(*addr, cpu_to_le16(val));
+
+	return ret;
+}
+
 static void slimpro_i2c_rx_cb(struct mbox_client *cl, void *mssg)
 {
 	struct slimpro_i2c_dev *ctx = to_slimpro_i2c_dev(cl);
@@ -129,9 +161,53 @@ static void slimpro_i2c_rx_cb(struct mbox_client *cl, void *mssg)
 		complete(&ctx->rd_complete);
 }
 
+static void slimpro_i2c_pcc_rx_cb(struct mbox_client *cl, void *msg)
+{
+	struct slimpro_i2c_dev *ctx = to_slimpro_i2c_dev(cl);
+	struct acpi_pcct_shared_memory *generic_comm_base = ctx->pcc_comm_addr;
+
+	/* Check if platform sends interrupt */
+	if (!xgene_word_tst_and_clr(&generic_comm_base->status,
+				    PCC_STS_SCI_DOORBELL))
+		return;
+
+	if (xgene_word_tst_and_clr(&generic_comm_base->status,
+				   PCC_STS_CMD_COMPLETE)) {
+		msg = generic_comm_base + 1;
+
+		/* Response message msg[1] contains the return value. */
+		if (ctx->resp_msg)
+			*ctx->resp_msg = ((u32 *)msg)[1];
+
+		complete(&ctx->rd_complete);
+	}
+}
+
+static void slimpro_i2c_pcc_tx_prepare(struct slimpro_i2c_dev *ctx, u32 *msg)
+{
+	struct acpi_pcct_shared_memory *generic_comm_base = ctx->pcc_comm_addr;
+	u32 *ptr = (void *)(generic_comm_base + 1);
+	u16 status;
+	int i;
+
+	WRITE_ONCE(generic_comm_base->signature,
+		   cpu_to_le32(PCC_SIGNATURE | ctx->mbox_idx));
+
+	WRITE_ONCE(generic_comm_base->command,
+		   cpu_to_le16(SLIMPRO_MSG_TYPE(msg[0]) | PCC_CMD_GENERATE_DB_INT));
+
+	status = le16_to_cpu(READ_ONCE(generic_comm_base->status));
+	status &= ~PCC_STS_CMD_COMPLETE;
+	WRITE_ONCE(generic_comm_base->status, cpu_to_le16(status));
+
+	/* Copy the message to the PCC comm space */
+	for (i = 0; i < SLIMPRO_IIC_MSG_DWORD_COUNT; i++)
+		WRITE_ONCE(ptr[i], cpu_to_le32(msg[i]));
+}
+
 static int start_i2c_msg_xfer(struct slimpro_i2c_dev *ctx)
 {
-	if (ctx->mbox_client.tx_block) {
+	if (ctx->mbox_client.tx_block || !acpi_disabled) {
 		if (!wait_for_completion_timeout(&ctx->rd_complete,
 						 msecs_to_jiffies(MAILBOX_OP_TIMEOUT)))
 			return -ETIMEDOUT;
@@ -144,49 +220,60 @@ static int start_i2c_msg_xfer(struct slimpro_i2c_dev *ctx)
 	return 0;
 }
 
-static int slimpro_i2c_rd(struct slimpro_i2c_dev *ctx, u32 chip,
-			  u32 addr, u32 addrlen, u32 protocol,
-			  u32 readlen, u32 *data)
+static int slimpro_i2c_send_msg(struct slimpro_i2c_dev *ctx,
+				u32 *msg,
+				u32 *data)
 {
-	u32 msg[3];
 	int rc;
 
-	msg[0] = SLIMPRO_IIC_ENCODE_MSG(SLIMPRO_IIC_BUS, chip,
-					SLIMPRO_IIC_READ, protocol, addrlen, readlen);
-	msg[1] = SLIMPRO_IIC_ENCODE_ADDR(addr);
-	msg[2] = 0;
 	ctx->resp_msg = data;
-	rc = mbox_send_message(ctx->mbox_chan, &msg);
+
+	if (!acpi_disabled) {
+		reinit_completion(&ctx->rd_complete);
+		slimpro_i2c_pcc_tx_prepare(ctx, msg);
+	}
+
+	rc = mbox_send_message(ctx->mbox_chan, msg);
 	if (rc < 0)
 		goto err;
 
 	rc = start_i2c_msg_xfer(ctx);
+
 err:
+	if (!acpi_disabled)
+		mbox_chan_txdone(ctx->mbox_chan, 0);
+
 	ctx->resp_msg = NULL;
+
 	return rc;
 }
 
+static int slimpro_i2c_rd(struct slimpro_i2c_dev *ctx, u32 chip,
+			  u32 addr, u32 addrlen, u32 protocol,
+			  u32 readlen, u32 *data)
+{
+	u32 msg[3];
+
+	msg[0] = SLIMPRO_IIC_ENCODE_MSG(SLIMPRO_IIC_BUS, chip,
+					SLIMPRO_IIC_READ, protocol, addrlen, readlen);
+	msg[1] = SLIMPRO_IIC_ENCODE_ADDR(addr);
+	msg[2] = 0;
+
+	return slimpro_i2c_send_msg(ctx, msg, data);
+}
+
 static int slimpro_i2c_wr(struct slimpro_i2c_dev *ctx, u32 chip,
 			  u32 addr, u32 addrlen, u32 protocol, u32 writelen,
 			  u32 data)
 {
 	u32 msg[3];
-	int rc;
 
 	msg[0] = SLIMPRO_IIC_ENCODE_MSG(SLIMPRO_IIC_BUS, chip,
 					SLIMPRO_IIC_WRITE, protocol, addrlen, writelen);
 	msg[1] = SLIMPRO_IIC_ENCODE_ADDR(addr);
 	msg[2] = data;
-	ctx->resp_msg = msg;
-
-	rc = mbox_send_message(ctx->mbox_chan, &msg);
-	if (rc < 0)
-		goto err;
 
-	rc = start_i2c_msg_xfer(ctx);
-err:
-	ctx->resp_msg = NULL;
-	return rc;
+	return slimpro_i2c_send_msg(ctx, msg, msg);
 }
 
 static int slimpro_i2c_blkrd(struct slimpro_i2c_dev *ctx, u32 chip, u32 addr,
@@ -201,8 +288,7 @@ static int slimpro_i2c_blkrd(struct slimpro_i2c_dev *ctx, u32 chip, u32 addr,
 	if (dma_mapping_error(ctx->dev, paddr)) {
 		dev_err(&ctx->adapter.dev, "Error in mapping dma buffer %p\n",
 			ctx->dma_buffer);
-		rc = -ENOMEM;
-		goto err;
+		return -ENOMEM;
 	}
 
 	msg[0] = SLIMPRO_IIC_ENCODE_MSG(SLIMPRO_IIC_BUS, chip, SLIMPRO_IIC_READ,
@@ -212,21 +298,13 @@ static int slimpro_i2c_blkrd(struct slimpro_i2c_dev *ctx, u32 chip, u32 addr,
 		 SLIMPRO_IIC_ENCODE_UPPER_BUFADDR(paddr) |
 		 SLIMPRO_IIC_ENCODE_ADDR(addr);
 	msg[2] = (u32)paddr;
-	ctx->resp_msg = msg;
-
-	rc = mbox_send_message(ctx->mbox_chan, &msg);
-	if (rc < 0)
-		goto err_unmap;
 
-	rc = start_i2c_msg_xfer(ctx);
+	rc = slimpro_i2c_send_msg(ctx, msg, msg);
 
 	/* Copy to destination */
 	memcpy(data, ctx->dma_buffer, readlen);
 
-err_unmap:
 	dma_unmap_single(ctx->dev, paddr, readlen, DMA_FROM_DEVICE);
-err:
-	ctx->resp_msg = NULL;
 	return rc;
 }
 
@@ -244,8 +322,7 @@ static int slimpro_i2c_blkwr(struct slimpro_i2c_dev *ctx, u32 chip,
 	if (dma_mapping_error(ctx->dev, paddr)) {
 		dev_err(&ctx->adapter.dev, "Error in mapping dma buffer %p\n",
 			ctx->dma_buffer);
-		rc = -ENOMEM;
-		goto err;
+		return -ENOMEM;
 	}
 
 	msg[0] = SLIMPRO_IIC_ENCODE_MSG(SLIMPRO_IIC_BUS, chip, SLIMPRO_IIC_WRITE,
@@ -254,21 +331,13 @@ static int slimpro_i2c_blkwr(struct slimpro_i2c_dev *ctx, u32 chip,
 		 SLIMPRO_IIC_ENCODE_UPPER_BUFADDR(paddr) |
 		 SLIMPRO_IIC_ENCODE_ADDR(addr);
 	msg[2] = (u32)paddr;
-	ctx->resp_msg = msg;
 
 	if (ctx->mbox_client.tx_block)
 		reinit_completion(&ctx->rd_complete);
 
-	rc = mbox_send_message(ctx->mbox_chan, &msg);
-	if (rc < 0)
-		goto err_unmap;
+	rc = slimpro_i2c_send_msg(ctx, msg, msg);
 
-	rc = start_i2c_msg_xfer(ctx);
-
-err_unmap:
 	dma_unmap_single(ctx->dev, paddr, writelen, DMA_TO_DEVICE);
-err:
-	ctx->resp_msg = NULL;
 	return rc;
 }
 
@@ -394,17 +463,73 @@ static int xgene_slimpro_i2c_probe(struct platform_device *pdev)
 
 	/* Request mailbox channel */
 	cl->dev = &pdev->dev;
-	cl->rx_callback = slimpro_i2c_rx_cb;
-	cl->tx_block = true;
 	init_completion(&ctx->rd_complete);
 	cl->tx_tout = MAILBOX_OP_TIMEOUT;
 	cl->knows_txdone = false;
-	ctx->mbox_chan = mbox_request_channel(cl, MAILBOX_I2C_INDEX);
-	if (IS_ERR(ctx->mbox_chan)) {
-		dev_err(&pdev->dev, "i2c mailbox channel request failed\n");
-		return PTR_ERR(ctx->mbox_chan);
-	}
+	if (acpi_disabled) {
+		cl->tx_block = true;
+		cl->rx_callback = slimpro_i2c_rx_cb;
+		ctx->mbox_chan = mbox_request_channel(cl, MAILBOX_I2C_INDEX);
+		if (IS_ERR(ctx->mbox_chan)) {
+			dev_err(&pdev->dev, "i2c mailbox channel request failed\n");
+			return PTR_ERR(ctx->mbox_chan);
+		}
+	} else {
+		struct acpi_pcct_hw_reduced *cppc_ss;
+
+		if (device_property_read_u32(&pdev->dev, "pcc-channel",
+					     &ctx->mbox_idx))
+			ctx->mbox_idx = MAILBOX_I2C_INDEX;
+
+		cl->tx_block = false;
+		cl->rx_callback = slimpro_i2c_pcc_rx_cb;
+		ctx->mbox_chan = pcc_mbox_request_channel(cl, ctx->mbox_idx);
+		if (IS_ERR(ctx->mbox_chan)) {
+			dev_err(&pdev->dev, "PCC mailbox channel request failed\n");
+			return PTR_ERR(ctx->mbox_chan);
+		}
+
+		/*
+		 * The PCC mailbox controller driver should
+		 * have parsed the PCCT (global table of all
+		 * PCC channels) and stored pointers to the
+		 * subspace communication region in con_priv.
+		 */
+		cppc_ss = ctx->mbox_chan->con_priv;
+		if (!cppc_ss) {
+			dev_err(&pdev->dev, "PPC subspace not found\n");
+			rc = -ENOENT;
+			goto mbox_err;
+		}
+
+		if (!ctx->mbox_chan->mbox->txdone_irq) {
+			dev_err(&pdev->dev, "PCC IRQ not supported\n");
+			rc = -ENOENT;
+			goto mbox_err;
+		}
+
+		/*
+		 * This is the shared communication region
+		 * for the OS and Platform to communicate over.
+		 */
+		ctx->comm_base_addr = cppc_ss->base_address;
+		if (ctx->comm_base_addr) {
+			ctx->pcc_comm_addr = memremap(ctx->comm_base_addr,
+						      cppc_ss->length,
+						      MEMREMAP_WB);
+		} else {
+			dev_err(&pdev->dev, "Failed to get PCC comm region\n");
+			rc = -ENOENT;
+			goto mbox_err;
+		}
 
+		if (!ctx->pcc_comm_addr) {
+			dev_err(&pdev->dev,
+				"Failed to ioremap PCC comm region\n");
+			rc = -ENOMEM;
+			goto mbox_err;
+		}
+	}
 	rc = dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(64));
 	if (rc)
 		dev_warn(&pdev->dev, "Unable to set dma mask\n");
@@ -419,13 +544,19 @@ static int xgene_slimpro_i2c_probe(struct platform_device *pdev)
 	ACPI_COMPANION_SET(&adapter->dev, ACPI_COMPANION(&pdev->dev));
 	i2c_set_adapdata(adapter, ctx);
 	rc = i2c_add_adapter(adapter);
-	if (rc) {
-		mbox_free_channel(ctx->mbox_chan);
-		return rc;
-	}
+	if (rc)
+		goto mbox_err;
 
 	dev_info(&pdev->dev, "Mailbox I2C Adapter registered\n");
 	return 0;
+
+mbox_err:
+	if (acpi_disabled)
+		mbox_free_channel(ctx->mbox_chan);
+	else
+		pcc_mbox_free_channel(ctx->mbox_chan);
+
+	return rc;
 }
 
 static int xgene_slimpro_i2c_remove(struct platform_device *pdev)
@@ -434,7 +565,10 @@ static int xgene_slimpro_i2c_remove(struct platform_device *pdev)
 
 	i2c_del_adapter(&ctx->adapter);
 
-	mbox_free_channel(ctx->mbox_chan);
+	if (acpi_disabled)
+		mbox_free_channel(ctx->mbox_chan);
+	else
+		pcc_mbox_free_channel(ctx->mbox_chan);
 
 	return 0;
 }
diff --git a/drivers/i2c/busses/i2c-xlp9xx.c b/drivers/i2c/busses/i2c-xlp9xx.c
index ae80228104e9..6b106e94bc09 100644
--- a/drivers/i2c/busses/i2c-xlp9xx.c
+++ b/drivers/i2c/busses/i2c-xlp9xx.c
@@ -393,6 +393,7 @@ static int xlp9xx_i2c_probe(struct platform_device *pdev)
 	init_completion(&priv->msg_complete);
 	priv->adapter.dev.parent = &pdev->dev;
 	priv->adapter.algo = &xlp9xx_i2c_algo;
+	priv->adapter.class = I2C_CLASS_HWMON;
 	ACPI_COMPANION_SET(&priv->adapter.dev, ACPI_COMPANION(&pdev->dev));
 	priv->adapter.dev.of_node = pdev->dev.of_node;
 	priv->dev = &pdev->dev;
diff --git a/drivers/i2c/busses/i2c-zx2967.c b/drivers/i2c/busses/i2c-zx2967.c
new file mode 100644
index 000000000000..48281c1b30c6
--- /dev/null
+++ b/drivers/i2c/busses/i2c-zx2967.c
@@ -0,0 +1,609 @@
+/*
+ * Copyright (C) 2017 Sanechips Technology Co., Ltd.
+ * Copyright 2017 Linaro Ltd.
+ *
+ * Author: Baoyou Xie <baoyou.xie@linaro.org>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#include <linux/clk.h>
+#include <linux/i2c.h>
+#include <linux/interrupt.h>
+#include <linux/io.h>
+#include <linux/module.h>
+#include <linux/platform_device.h>
+
+#define REG_CMD				0x04
+#define REG_DEVADDR_H			0x0C
+#define REG_DEVADDR_L			0x10
+#define REG_CLK_DIV_FS			0x14
+#define REG_CLK_DIV_HS			0x18
+#define REG_WRCONF			0x1C
+#define REG_RDCONF			0x20
+#define REG_DATA			0x24
+#define REG_STAT			0x28
+
+#define I2C_STOP			0
+#define I2C_MASTER			BIT(0)
+#define I2C_ADDR_MODE_TEN		BIT(1)
+#define I2C_IRQ_MSK_ENABLE		BIT(3)
+#define I2C_RW_READ			BIT(4)
+#define I2C_CMB_RW_EN			BIT(5)
+#define I2C_START			BIT(6)
+
+#define I2C_ADDR_LOW_MASK		GENMASK(6, 0)
+#define I2C_ADDR_LOW_SHIFT		0
+#define I2C_ADDR_HI_MASK		GENMASK(2, 0)
+#define I2C_ADDR_HI_SHIFT		7
+
+#define I2C_WFIFO_RESET			BIT(7)
+#define I2C_RFIFO_RESET			BIT(7)
+
+#define I2C_IRQ_ACK_CLEAR		BIT(7)
+#define I2C_INT_MASK			GENMASK(6, 0)
+
+#define I2C_TRANS_DONE			BIT(0)
+#define I2C_SR_EDEVICE			BIT(1)
+#define I2C_SR_EDATA			BIT(2)
+
+#define I2C_FIFO_MAX			16
+
+#define I2C_TIMEOUT			msecs_to_jiffies(1000)
+
+#define DEV(i2c)			((i2c)->adap.dev.parent)
+
+struct zx2967_i2c {
+	struct i2c_adapter	adap;
+	struct clk		*clk;
+	struct completion	complete;
+	u32			clk_freq;
+	void __iomem		*reg_base;
+	size_t			residue;
+	int			irq;
+	int			msg_rd;
+	u8			*cur_trans;
+	u8			access_cnt;
+	bool			is_suspended;
+	int			error;
+};
+
+static void zx2967_i2c_writel(struct zx2967_i2c *i2c,
+			      u32 val, unsigned long reg)
+{
+	writel_relaxed(val, i2c->reg_base + reg);
+}
+
+static u32 zx2967_i2c_readl(struct zx2967_i2c *i2c, unsigned long reg)
+{
+	return readl_relaxed(i2c->reg_base + reg);
+}
+
+static void zx2967_i2c_writesb(struct zx2967_i2c *i2c,
+			       void *data, unsigned long reg, int len)
+{
+	writesb(i2c->reg_base + reg, data, len);
+}
+
+static void zx2967_i2c_readsb(struct zx2967_i2c *i2c,
+			      void *data, unsigned long reg, int len)
+{
+	readsb(i2c->reg_base + reg, data, len);
+}
+
+static void zx2967_i2c_start_ctrl(struct zx2967_i2c *i2c)
+{
+	u32 status;
+	u32 ctl;
+
+	status = zx2967_i2c_readl(i2c, REG_STAT);
+	status |= I2C_IRQ_ACK_CLEAR;
+	zx2967_i2c_writel(i2c, status, REG_STAT);
+
+	ctl = zx2967_i2c_readl(i2c, REG_CMD);
+	if (i2c->msg_rd)
+		ctl |= I2C_RW_READ;
+	else
+		ctl &= ~I2C_RW_READ;
+	ctl &= ~I2C_CMB_RW_EN;
+	ctl |= I2C_START;
+	zx2967_i2c_writel(i2c, ctl, REG_CMD);
+}
+
+static void zx2967_i2c_flush_fifos(struct zx2967_i2c *i2c)
+{
+	u32 offset;
+	u32 val;
+
+	if (i2c->msg_rd) {
+		offset = REG_RDCONF;
+		val = I2C_RFIFO_RESET;
+	} else {
+		offset = REG_WRCONF;
+		val = I2C_WFIFO_RESET;
+	}
+
+	val |= zx2967_i2c_readl(i2c, offset);
+	zx2967_i2c_writel(i2c, val, offset);
+}
+
+static int zx2967_i2c_empty_rx_fifo(struct zx2967_i2c *i2c, u32 size)
+{
+	u8 val[I2C_FIFO_MAX] = {0};
+	int i;
+
+	if (size > I2C_FIFO_MAX) {
+		dev_err(DEV(i2c), "fifo size %d over the max value %d\n",
+			size, I2C_FIFO_MAX);
+		return -EINVAL;
+	}
+
+	zx2967_i2c_readsb(i2c, val, REG_DATA, size);
+	for (i = 0; i < size; i++) {
+		*i2c->cur_trans++ = val[i];
+		i2c->residue--;
+	}
+
+	barrier();
+
+	return 0;
+}
+
+static int zx2967_i2c_fill_tx_fifo(struct zx2967_i2c *i2c)
+{
+	size_t residue = i2c->residue;
+	u8 *buf = i2c->cur_trans;
+
+	if (residue == 0) {
+		dev_err(DEV(i2c), "residue is %d\n", (int)residue);
+		return -EINVAL;
+	}
+
+	if (residue <= I2C_FIFO_MAX) {
+		zx2967_i2c_writesb(i2c, buf, REG_DATA, residue);
+
+		/* Again update before writing to FIFO to make sure isr sees. */
+		i2c->residue = 0;
+		i2c->cur_trans = NULL;
+	} else {
+		zx2967_i2c_writesb(i2c, buf, REG_DATA, I2C_FIFO_MAX);
+		i2c->residue -= I2C_FIFO_MAX;
+		i2c->cur_trans += I2C_FIFO_MAX;
+	}
+
+	barrier();
+
+	return 0;
+}
+
+static int zx2967_i2c_reset_hardware(struct zx2967_i2c *i2c)
+{
+	u32 val;
+	u32 clk_div;
+
+	val = I2C_MASTER | I2C_IRQ_MSK_ENABLE;
+	zx2967_i2c_writel(i2c, val, REG_CMD);
+
+	clk_div = clk_get_rate(i2c->clk) / i2c->clk_freq - 1;
+	zx2967_i2c_writel(i2c, clk_div, REG_CLK_DIV_FS);
+	zx2967_i2c_writel(i2c, clk_div, REG_CLK_DIV_HS);
+
+	zx2967_i2c_writel(i2c, I2C_FIFO_MAX - 1, REG_WRCONF);
+	zx2967_i2c_writel(i2c, I2C_FIFO_MAX - 1, REG_RDCONF);
+	zx2967_i2c_writel(i2c, 1, REG_RDCONF);
+
+	zx2967_i2c_flush_fifos(i2c);
+
+	return 0;
+}
+
+static void zx2967_i2c_isr_clr(struct zx2967_i2c *i2c)
+{
+	u32 status;
+
+	status = zx2967_i2c_readl(i2c, REG_STAT);
+	status |= I2C_IRQ_ACK_CLEAR;
+	zx2967_i2c_writel(i2c, status, REG_STAT);
+}
+
+static irqreturn_t zx2967_i2c_isr(int irq, void *dev_id)
+{
+	u32 status;
+	struct zx2967_i2c *i2c = (struct zx2967_i2c *)dev_id;
+
+	status = zx2967_i2c_readl(i2c, REG_STAT) & I2C_INT_MASK;
+	zx2967_i2c_isr_clr(i2c);
+
+	if (status & I2C_SR_EDEVICE)
+		i2c->error = -ENXIO;
+	else if (status & I2C_SR_EDATA)
+		i2c->error = -EIO;
+	else if (status & I2C_TRANS_DONE)
+		i2c->error = 0;
+	else
+		goto done;
+
+	complete(&i2c->complete);
+done:
+	return IRQ_HANDLED;
+}
+
+static void zx2967_set_addr(struct zx2967_i2c *i2c, u16 addr)
+{
+	u16 val;
+
+	val = (addr >> I2C_ADDR_LOW_SHIFT) & I2C_ADDR_LOW_MASK;
+	zx2967_i2c_writel(i2c, val, REG_DEVADDR_L);
+
+	val = (addr >> I2C_ADDR_HI_SHIFT) & I2C_ADDR_HI_MASK;
+	zx2967_i2c_writel(i2c, val, REG_DEVADDR_H);
+	if (val)
+		val = zx2967_i2c_readl(i2c, REG_CMD) | I2C_ADDR_MODE_TEN;
+	else
+		val = zx2967_i2c_readl(i2c, REG_CMD) & ~I2C_ADDR_MODE_TEN;
+	zx2967_i2c_writel(i2c, val, REG_CMD);
+}
+
+static int zx2967_i2c_xfer_bytes(struct zx2967_i2c *i2c, u32 bytes)
+{
+	unsigned long time_left;
+	int rd = i2c->msg_rd;
+	int ret;
+
+	reinit_completion(&i2c->complete);
+
+	if (rd) {
+		zx2967_i2c_writel(i2c, bytes - 1, REG_RDCONF);
+	} else {
+		ret = zx2967_i2c_fill_tx_fifo(i2c);
+		if (ret)
+			return ret;
+	}
+
+	zx2967_i2c_start_ctrl(i2c);
+
+	time_left = wait_for_completion_timeout(&i2c->complete,
+						I2C_TIMEOUT);
+	if (time_left == 0)
+		return -ETIMEDOUT;
+
+	if (i2c->error)
+		return i2c->error;
+
+	return rd ? zx2967_i2c_empty_rx_fifo(i2c, bytes) : 0;
+}
+
+static int zx2967_i2c_xfer_msg(struct zx2967_i2c *i2c,
+			       struct i2c_msg *msg)
+{
+	int ret;
+	int i;
+
+	if (msg->len == 0)
+		return -EINVAL;
+
+	zx2967_i2c_flush_fifos(i2c);
+
+	i2c->cur_trans = msg->buf;
+	i2c->residue = msg->len;
+	i2c->access_cnt = msg->len / I2C_FIFO_MAX;
+	i2c->msg_rd = msg->flags & I2C_M_RD;
+
+	for (i = 0; i < i2c->access_cnt; i++) {
+		ret = zx2967_i2c_xfer_bytes(i2c, I2C_FIFO_MAX);
+		if (ret)
+			return ret;
+	}
+
+	if (i2c->residue > 0) {
+		ret = zx2967_i2c_xfer_bytes(i2c, i2c->residue);
+		if (ret)
+			return ret;
+	}
+
+	i2c->residue = 0;
+	i2c->access_cnt = 0;
+
+	return 0;
+}
+
+static int zx2967_i2c_xfer(struct i2c_adapter *adap,
+			   struct i2c_msg *msgs, int num)
+{
+	struct zx2967_i2c *i2c = i2c_get_adapdata(adap);
+	int ret;
+	int i;
+
+	if (i2c->is_suspended)
+		return -EBUSY;
+
+	zx2967_set_addr(i2c, msgs->addr);
+
+	for (i = 0; i < num; i++) {
+		ret = zx2967_i2c_xfer_msg(i2c, &msgs[i]);
+		if (ret)
+			return ret;
+	}
+
+	return num;
+}
+
+static void
+zx2967_smbus_xfer_prepare(struct zx2967_i2c *i2c, u16 addr,
+			  char read_write, u8 command, int size,
+			  union i2c_smbus_data *data)
+{
+	u32 val;
+
+	val = zx2967_i2c_readl(i2c, REG_RDCONF);
+	val |= I2C_RFIFO_RESET;
+	zx2967_i2c_writel(i2c, val, REG_RDCONF);
+	zx2967_set_addr(i2c, addr);
+	val = zx2967_i2c_readl(i2c, REG_CMD);
+	val &= ~I2C_RW_READ;
+	zx2967_i2c_writel(i2c, val, REG_CMD);
+
+	switch (size) {
+	case I2C_SMBUS_BYTE:
+		zx2967_i2c_writel(i2c, command, REG_DATA);
+		break;
+	case I2C_SMBUS_BYTE_DATA:
+		zx2967_i2c_writel(i2c, command, REG_DATA);
+		if (read_write == I2C_SMBUS_WRITE)
+			zx2967_i2c_writel(i2c, data->byte, REG_DATA);
+		break;
+	case I2C_SMBUS_WORD_DATA:
+		zx2967_i2c_writel(i2c, command, REG_DATA);
+		if (read_write == I2C_SMBUS_WRITE) {
+			zx2967_i2c_writel(i2c, (data->word >> 8), REG_DATA);
+			zx2967_i2c_writel(i2c, (data->word & 0xff),
+					  REG_DATA);
+		}
+		break;
+	}
+}
+
+static int zx2967_smbus_xfer_read(struct zx2967_i2c *i2c, int size,
+				  union i2c_smbus_data *data)
+{
+	unsigned long time_left;
+	u8 buf[2];
+	u32 val;
+
+	reinit_completion(&i2c->complete);
+
+	val = zx2967_i2c_readl(i2c, REG_CMD);
+	val |= I2C_CMB_RW_EN;
+	zx2967_i2c_writel(i2c, val, REG_CMD);
+
+	val = zx2967_i2c_readl(i2c, REG_CMD);
+	val |= I2C_START;
+	zx2967_i2c_writel(i2c, val, REG_CMD);
+
+	time_left = wait_for_completion_timeout(&i2c->complete,
+						I2C_TIMEOUT);
+	if (time_left == 0)
+		return -ETIMEDOUT;
+
+	if (i2c->error)
+		return i2c->error;
+
+	switch (size) {
+	case I2C_SMBUS_BYTE:
+	case I2C_SMBUS_BYTE_DATA:
+		val = zx2967_i2c_readl(i2c, REG_DATA);
+		data->byte = val;
+		break;
+	case I2C_SMBUS_WORD_DATA:
+	case I2C_SMBUS_PROC_CALL:
+		buf[0] = zx2967_i2c_readl(i2c, REG_DATA);
+		buf[1] = zx2967_i2c_readl(i2c, REG_DATA);
+		data->word = (buf[0] << 8) | buf[1];
+		break;
+	default:
+		return -EOPNOTSUPP;
+	}
+
+	return 0;
+}
+
+static int zx2967_smbus_xfer_write(struct zx2967_i2c *i2c)
+{
+	unsigned long time_left;
+	u32 val;
+
+	reinit_completion(&i2c->complete);
+	val = zx2967_i2c_readl(i2c, REG_CMD);
+	val |= I2C_START;
+	zx2967_i2c_writel(i2c, val, REG_CMD);
+
+	time_left = wait_for_completion_timeout(&i2c->complete,
+						I2C_TIMEOUT);
+	if (time_left == 0)
+		return -ETIMEDOUT;
+
+	if (i2c->error)
+		return i2c->error;
+
+	return 0;
+}
+
+static int zx2967_smbus_xfer(struct i2c_adapter *adap, u16 addr,
+			     unsigned short flags, char read_write,
+			     u8 command, int size, union i2c_smbus_data *data)
+{
+	struct zx2967_i2c *i2c = i2c_get_adapdata(adap);
+
+	if (size == I2C_SMBUS_QUICK)
+		read_write = I2C_SMBUS_WRITE;
+
+	switch (size) {
+	case I2C_SMBUS_QUICK:
+	case I2C_SMBUS_BYTE:
+	case I2C_SMBUS_BYTE_DATA:
+	case I2C_SMBUS_WORD_DATA:
+		zx2967_smbus_xfer_prepare(i2c, addr, read_write,
+					  command, size, data);
+		break;
+	default:
+		return -EOPNOTSUPP;
+	}
+
+	if (read_write == I2C_SMBUS_READ)
+		return zx2967_smbus_xfer_read(i2c, size, data);
+
+	return zx2967_smbus_xfer_write(i2c);
+}
+
+static u32 zx2967_i2c_func(struct i2c_adapter *adap)
+{
+	return I2C_FUNC_I2C |
+	       I2C_FUNC_SMBUS_QUICK |
+	       I2C_FUNC_SMBUS_BYTE |
+	       I2C_FUNC_SMBUS_BYTE_DATA |
+	       I2C_FUNC_SMBUS_WORD_DATA |
+	       I2C_FUNC_SMBUS_BLOCK_DATA |
+	       I2C_FUNC_SMBUS_PROC_CALL |
+	       I2C_FUNC_SMBUS_I2C_BLOCK;
+}
+
+static int __maybe_unused zx2967_i2c_suspend(struct device *dev)
+{
+	struct zx2967_i2c *i2c = dev_get_drvdata(dev);
+
+	i2c->is_suspended = true;
+	clk_disable_unprepare(i2c->clk);
+
+	return 0;
+}
+
+static int __maybe_unused zx2967_i2c_resume(struct device *dev)
+{
+	struct zx2967_i2c *i2c = dev_get_drvdata(dev);
+
+	i2c->is_suspended = false;
+	clk_prepare_enable(i2c->clk);
+
+	return 0;
+}
+
+static SIMPLE_DEV_PM_OPS(zx2967_i2c_dev_pm_ops,
+			 zx2967_i2c_suspend, zx2967_i2c_resume);
+
+static const struct i2c_algorithm zx2967_i2c_algo = {
+	.master_xfer = zx2967_i2c_xfer,
+	.smbus_xfer = zx2967_smbus_xfer,
+	.functionality = zx2967_i2c_func,
+};
+
+static const struct of_device_id zx2967_i2c_of_match[] = {
+	{ .compatible = "zte,zx296718-i2c", },
+	{ },
+};
+MODULE_DEVICE_TABLE(of, zx2967_i2c_of_match);
+
+static int zx2967_i2c_probe(struct platform_device *pdev)
+{
+	struct zx2967_i2c *i2c;
+	void __iomem *reg_base;
+	struct resource *res;
+	struct clk *clk;
+	int ret;
+
+	i2c = devm_kzalloc(&pdev->dev, sizeof(*i2c), GFP_KERNEL);
+	if (!i2c)
+		return -ENOMEM;
+
+	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+	reg_base = devm_ioremap_resource(&pdev->dev, res);
+	if (IS_ERR(reg_base))
+		return PTR_ERR(reg_base);
+
+	clk = devm_clk_get(&pdev->dev, NULL);
+	if (IS_ERR(clk)) {
+		dev_err(&pdev->dev, "missing controller clock");
+		return PTR_ERR(clk);
+	}
+
+	ret = clk_prepare_enable(clk);
+	if (ret) {
+		dev_err(&pdev->dev, "failed to enable i2c_clk\n");
+		return ret;
+	}
+
+	ret = device_property_read_u32(&pdev->dev, "clock-frequency",
+				       &i2c->clk_freq);
+	if (ret) {
+		dev_err(&pdev->dev, "missing clock-frequency");
+		return ret;
+	}
+
+	ret = platform_get_irq(pdev, 0);
+	if (ret < 0)
+		return ret;
+
+	i2c->irq = ret;
+	i2c->reg_base = reg_base;
+	i2c->clk = clk;
+
+	init_completion(&i2c->complete);
+	platform_set_drvdata(pdev, i2c);
+
+	ret = zx2967_i2c_reset_hardware(i2c);
+	if (ret) {
+		dev_err(&pdev->dev, "failed to initialize i2c controller\n");
+		goto err_clk_unprepare;
+	}
+
+	ret = devm_request_irq(&pdev->dev, i2c->irq,
+			zx2967_i2c_isr, 0, dev_name(&pdev->dev), i2c);
+	if (ret) {
+		dev_err(&pdev->dev, "failed to request irq %i\n", i2c->irq);
+		goto err_clk_unprepare;
+	}
+
+	i2c_set_adapdata(&i2c->adap, i2c);
+	strlcpy(i2c->adap.name, "zx2967 i2c adapter",
+		sizeof(i2c->adap.name));
+	i2c->adap.algo = &zx2967_i2c_algo;
+	i2c->adap.nr = pdev->id;
+	i2c->adap.dev.parent = &pdev->dev;
+	i2c->adap.dev.of_node = pdev->dev.of_node;
+
+	ret = i2c_add_numbered_adapter(&i2c->adap);
+	if (ret)
+		goto err_clk_unprepare;
+
+	return 0;
+
+err_clk_unprepare:
+	clk_disable_unprepare(i2c->clk);
+	return ret;
+}
+
+static int zx2967_i2c_remove(struct platform_device *pdev)
+{
+	struct zx2967_i2c *i2c = platform_get_drvdata(pdev);
+
+	i2c_del_adapter(&i2c->adap);
+	clk_disable_unprepare(i2c->clk);
+
+	return 0;
+}
+
+static struct platform_driver zx2967_i2c_driver = {
+	.probe	= zx2967_i2c_probe,
+	.remove	= zx2967_i2c_remove,
+	.driver	= {
+		.name  = "zx2967_i2c",
+		.of_match_table = zx2967_i2c_of_match,
+		.pm = &zx2967_i2c_dev_pm_ops,
+	},
+};
+module_platform_driver(zx2967_i2c_driver);
+
+MODULE_AUTHOR("Baoyou Xie <baoyou.xie@linaro.org>");
+MODULE_DESCRIPTION("ZTE ZX2967 I2C Bus Controller driver");
+MODULE_LICENSE("GPL v2");
diff --git a/drivers/i2c/i2c-core-acpi.c b/drivers/i2c/i2c-core-acpi.c
new file mode 100644
index 000000000000..a9126b3cda61
--- /dev/null
+++ b/drivers/i2c/i2c-core-acpi.c
@@ -0,0 +1,676 @@
+/*
+ * Linux I2C core ACPI support code
+ *
+ * Copyright (C) 2014 Intel Corp, Author: Lan Tianyu <tianyu.lan@intel.com>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the Free
+ * Software Foundation; either version 2 of the License, or (at your option)
+ * any later version.
+ */
+
+#include <linux/acpi.h>
+#include <linux/device.h>
+#include <linux/err.h>
+#include <linux/i2c.h>
+#include <linux/list.h>
+#include <linux/module.h>
+#include <linux/slab.h>
+
+#include "i2c-core.h"
+
+struct i2c_acpi_handler_data {
+	struct acpi_connection_info info;
+	struct i2c_adapter *adapter;
+};
+
+struct gsb_buffer {
+	u8	status;
+	u8	len;
+	union {
+		u16	wdata;
+		u8	bdata;
+		u8	data[0];
+	};
+} __packed;
+
+struct i2c_acpi_lookup {
+	struct i2c_board_info *info;
+	acpi_handle adapter_handle;
+	acpi_handle device_handle;
+	acpi_handle search_handle;
+	int n;
+	int index;
+	u32 speed;
+	u32 min_speed;
+};
+
+static int i2c_acpi_fill_info(struct acpi_resource *ares, void *data)
+{
+	struct i2c_acpi_lookup *lookup = data;
+	struct i2c_board_info *info = lookup->info;
+	struct acpi_resource_i2c_serialbus *sb;
+	acpi_status status;
+
+	if (info->addr || ares->type != ACPI_RESOURCE_TYPE_SERIAL_BUS)
+		return 1;
+
+	sb = &ares->data.i2c_serial_bus;
+	if (sb->type != ACPI_RESOURCE_SERIAL_TYPE_I2C)
+		return 1;
+
+	if (lookup->index != -1 && lookup->n++ != lookup->index)
+		return 1;
+
+	status = acpi_get_handle(lookup->device_handle,
+				 sb->resource_source.string_ptr,
+				 &lookup->adapter_handle);
+	if (!ACPI_SUCCESS(status))
+		return 1;
+
+	info->addr = sb->slave_address;
+	lookup->speed = sb->connection_speed;
+	if (sb->access_mode == ACPI_I2C_10BIT_MODE)
+		info->flags |= I2C_CLIENT_TEN;
+
+	return 1;
+}
+
+static const struct acpi_device_id i2c_acpi_ignored_device_ids[] = {
+	/*
+	 * ACPI video acpi_devices, which are handled by the acpi-video driver
+	 * sometimes contain a SERIAL_TYPE_I2C ACPI resource, ignore these.
+	 */
+	{ ACPI_VIDEO_HID, 0 },
+	{}
+};
+
+static int i2c_acpi_do_lookup(struct acpi_device *adev,
+			      struct i2c_acpi_lookup *lookup)
+{
+	struct i2c_board_info *info = lookup->info;
+	struct list_head resource_list;
+	int ret;
+
+	if (acpi_bus_get_status(adev) || !adev->status.present ||
+	    acpi_device_enumerated(adev))
+		return -EINVAL;
+
+	if (acpi_match_device_ids(adev, i2c_acpi_ignored_device_ids) == 0)
+		return -ENODEV;
+
+	memset(info, 0, sizeof(*info));
+	lookup->device_handle = acpi_device_handle(adev);
+
+	/* Look up for I2cSerialBus resource */
+	INIT_LIST_HEAD(&resource_list);
+	ret = acpi_dev_get_resources(adev, &resource_list,
+				     i2c_acpi_fill_info, lookup);
+	acpi_dev_free_resource_list(&resource_list);
+
+	if (ret < 0 || !info->addr)
+		return -EINVAL;
+
+	return 0;
+}
+
+static int i2c_acpi_get_info(struct acpi_device *adev,
+			     struct i2c_board_info *info,
+			     struct i2c_adapter *adapter,
+			     acpi_handle *adapter_handle)
+{
+	struct list_head resource_list;
+	struct resource_entry *entry;
+	struct i2c_acpi_lookup lookup;
+	int ret;
+
+	memset(&lookup, 0, sizeof(lookup));
+	lookup.info = info;
+	lookup.index = -1;
+
+	ret = i2c_acpi_do_lookup(adev, &lookup);
+	if (ret)
+		return ret;
+
+	if (adapter) {
+		/* The adapter must match the one in I2cSerialBus() connector */
+		if (ACPI_HANDLE(&adapter->dev) != lookup.adapter_handle)
+			return -ENODEV;
+	} else {
+		struct acpi_device *adapter_adev;
+
+		/* The adapter must be present */
+		if (acpi_bus_get_device(lookup.adapter_handle, &adapter_adev))
+			return -ENODEV;
+		if (acpi_bus_get_status(adapter_adev) ||
+		    !adapter_adev->status.present)
+			return -ENODEV;
+	}
+
+	info->fwnode = acpi_fwnode_handle(adev);
+	if (adapter_handle)
+		*adapter_handle = lookup.adapter_handle;
+
+	/* Then fill IRQ number if any */
+	INIT_LIST_HEAD(&resource_list);
+	ret = acpi_dev_get_resources(adev, &resource_list, NULL, NULL);
+	if (ret < 0)
+		return -EINVAL;
+
+	resource_list_for_each_entry(entry, &resource_list) {
+		if (resource_type(entry->res) == IORESOURCE_IRQ) {
+			info->irq = entry->res->start;
+			break;
+		}
+	}
+
+	acpi_dev_free_resource_list(&resource_list);
+
+	acpi_set_modalias(adev, dev_name(&adev->dev), info->type,
+			  sizeof(info->type));
+
+	return 0;
+}
+
+static void i2c_acpi_register_device(struct i2c_adapter *adapter,
+				     struct acpi_device *adev,
+				     struct i2c_board_info *info)
+{
+	adev->power.flags.ignore_parent = true;
+	acpi_device_set_enumerated(adev);
+
+	if (!i2c_new_device(adapter, info)) {
+		adev->power.flags.ignore_parent = false;
+		dev_err(&adapter->dev,
+			"failed to add I2C device %s from ACPI\n",
+			dev_name(&adev->dev));
+	}
+}
+
+static acpi_status i2c_acpi_add_device(acpi_handle handle, u32 level,
+				       void *data, void **return_value)
+{
+	struct i2c_adapter *adapter = data;
+	struct acpi_device *adev;
+	struct i2c_board_info info;
+
+	if (acpi_bus_get_device(handle, &adev))
+		return AE_OK;
+
+	if (i2c_acpi_get_info(adev, &info, adapter, NULL))
+		return AE_OK;
+
+	i2c_acpi_register_device(adapter, adev, &info);
+
+	return AE_OK;
+}
+
+#define I2C_ACPI_MAX_SCAN_DEPTH 32
+
+/**
+ * i2c_acpi_register_devices - enumerate I2C slave devices behind adapter
+ * @adap: pointer to adapter
+ *
+ * Enumerate all I2C slave devices behind this adapter by walking the ACPI
+ * namespace. When a device is found it will be added to the Linux device
+ * model and bound to the corresponding ACPI handle.
+ */
+void i2c_acpi_register_devices(struct i2c_adapter *adap)
+{
+	acpi_status status;
+
+	if (!has_acpi_companion(&adap->dev))
+		return;
+
+	status = acpi_walk_namespace(ACPI_TYPE_DEVICE, ACPI_ROOT_OBJECT,
+				     I2C_ACPI_MAX_SCAN_DEPTH,
+				     i2c_acpi_add_device, NULL,
+				     adap, NULL);
+	if (ACPI_FAILURE(status))
+		dev_warn(&adap->dev, "failed to enumerate I2C slaves\n");
+}
+
+const struct acpi_device_id *
+i2c_acpi_match_device(const struct acpi_device_id *matches,
+		      struct i2c_client *client)
+{
+	if (!(client && matches))
+		return NULL;
+
+	return acpi_match_device(matches, &client->dev);
+}
+
+static acpi_status i2c_acpi_lookup_speed(acpi_handle handle, u32 level,
+					   void *data, void **return_value)
+{
+	struct i2c_acpi_lookup *lookup = data;
+	struct acpi_device *adev;
+
+	if (acpi_bus_get_device(handle, &adev))
+		return AE_OK;
+
+	if (i2c_acpi_do_lookup(adev, lookup))
+		return AE_OK;
+
+	if (lookup->search_handle != lookup->adapter_handle)
+		return AE_OK;
+
+	if (lookup->speed <= lookup->min_speed)
+		lookup->min_speed = lookup->speed;
+
+	return AE_OK;
+}
+
+/**
+ * i2c_acpi_find_bus_speed - find I2C bus speed from ACPI
+ * @dev: The device owning the bus
+ *
+ * Find the I2C bus speed by walking the ACPI namespace for all I2C slaves
+ * devices connected to this bus and use the speed of slowest device.
+ *
+ * Returns the speed in Hz or zero
+ */
+u32 i2c_acpi_find_bus_speed(struct device *dev)
+{
+	struct i2c_acpi_lookup lookup;
+	struct i2c_board_info dummy;
+	acpi_status status;
+
+	if (!has_acpi_companion(dev))
+		return 0;
+
+	memset(&lookup, 0, sizeof(lookup));
+	lookup.search_handle = ACPI_HANDLE(dev);
+	lookup.min_speed = UINT_MAX;
+	lookup.info = &dummy;
+	lookup.index = -1;
+
+	status = acpi_walk_namespace(ACPI_TYPE_DEVICE, ACPI_ROOT_OBJECT,
+				     I2C_ACPI_MAX_SCAN_DEPTH,
+				     i2c_acpi_lookup_speed, NULL,
+				     &lookup, NULL);
+
+	if (ACPI_FAILURE(status)) {
+		dev_warn(dev, "unable to find I2C bus speed from ACPI\n");
+		return 0;
+	}
+
+	return lookup.min_speed != UINT_MAX ? lookup.min_speed : 0;
+}
+EXPORT_SYMBOL_GPL(i2c_acpi_find_bus_speed);
+
+static int i2c_acpi_find_match_adapter(struct device *dev, void *data)
+{
+	struct i2c_adapter *adapter = i2c_verify_adapter(dev);
+
+	if (!adapter)
+		return 0;
+
+	return ACPI_HANDLE(dev) == (acpi_handle)data;
+}
+
+static int i2c_acpi_find_match_device(struct device *dev, void *data)
+{
+	return ACPI_COMPANION(dev) == data;
+}
+
+static struct i2c_adapter *i2c_acpi_find_adapter_by_handle(acpi_handle handle)
+{
+	struct device *dev;
+
+	dev = bus_find_device(&i2c_bus_type, NULL, handle,
+			      i2c_acpi_find_match_adapter);
+	return dev ? i2c_verify_adapter(dev) : NULL;
+}
+
+static struct i2c_client *i2c_acpi_find_client_by_adev(struct acpi_device *adev)
+{
+	struct device *dev;
+
+	dev = bus_find_device(&i2c_bus_type, NULL, adev,
+			      i2c_acpi_find_match_device);
+	return dev ? i2c_verify_client(dev) : NULL;
+}
+
+static int i2c_acpi_notify(struct notifier_block *nb, unsigned long value,
+			   void *arg)
+{
+	struct acpi_device *adev = arg;
+	struct i2c_board_info info;
+	acpi_handle adapter_handle;
+	struct i2c_adapter *adapter;
+	struct i2c_client *client;
+
+	switch (value) {
+	case ACPI_RECONFIG_DEVICE_ADD:
+		if (i2c_acpi_get_info(adev, &info, NULL, &adapter_handle))
+			break;
+
+		adapter = i2c_acpi_find_adapter_by_handle(adapter_handle);
+		if (!adapter)
+			break;
+
+		i2c_acpi_register_device(adapter, adev, &info);
+		break;
+	case ACPI_RECONFIG_DEVICE_REMOVE:
+		if (!acpi_device_enumerated(adev))
+			break;
+
+		client = i2c_acpi_find_client_by_adev(adev);
+		if (!client)
+			break;
+
+		i2c_unregister_device(client);
+		put_device(&client->dev);
+		break;
+	}
+
+	return NOTIFY_OK;
+}
+
+struct notifier_block i2c_acpi_notifier = {
+	.notifier_call = i2c_acpi_notify,
+};
+
+/**
+ * i2c_acpi_new_device - Create i2c-client for the Nth I2cSerialBus resource
+ * @dev:     Device owning the ACPI resources to get the client from
+ * @index:   Index of ACPI resource to get
+ * @info:    describes the I2C device; note this is modified (addr gets set)
+ * Context: can sleep
+ *
+ * By default the i2c subsys creates an i2c-client for the first I2cSerialBus
+ * resource of an acpi_device, but some acpi_devices have multiple I2cSerialBus
+ * resources, in that case this function can be used to create an i2c-client
+ * for other I2cSerialBus resources in the Current Resource Settings table.
+ *
+ * Also see i2c_new_device, which this function calls to create the i2c-client.
+ *
+ * Returns a pointer to the new i2c-client, or NULL if the adapter is not found.
+ */
+struct i2c_client *i2c_acpi_new_device(struct device *dev, int index,
+				       struct i2c_board_info *info)
+{
+	struct i2c_acpi_lookup lookup;
+	struct i2c_adapter *adapter;
+	struct acpi_device *adev;
+	LIST_HEAD(resource_list);
+	int ret;
+
+	adev = ACPI_COMPANION(dev);
+	if (!adev)
+		return NULL;
+
+	memset(&lookup, 0, sizeof(lookup));
+	lookup.info = info;
+	lookup.device_handle = acpi_device_handle(adev);
+	lookup.index = index;
+
+	ret = acpi_dev_get_resources(adev, &resource_list,
+				     i2c_acpi_fill_info, &lookup);
+	acpi_dev_free_resource_list(&resource_list);
+
+	if (ret < 0 || !info->addr)
+		return NULL;
+
+	adapter = i2c_acpi_find_adapter_by_handle(lookup.adapter_handle);
+	if (!adapter)
+		return NULL;
+
+	return i2c_new_device(adapter, info);
+}
+EXPORT_SYMBOL_GPL(i2c_acpi_new_device);
+
+#ifdef CONFIG_ACPI_I2C_OPREGION
+static int acpi_gsb_i2c_read_bytes(struct i2c_client *client,
+		u8 cmd, u8 *data, u8 data_len)
+{
+
+	struct i2c_msg msgs[2];
+	int ret;
+	u8 *buffer;
+
+	buffer = kzalloc(data_len, GFP_KERNEL);
+	if (!buffer)
+		return AE_NO_MEMORY;
+
+	msgs[0].addr = client->addr;
+	msgs[0].flags = client->flags;
+	msgs[0].len = 1;
+	msgs[0].buf = &cmd;
+
+	msgs[1].addr = client->addr;
+	msgs[1].flags = client->flags | I2C_M_RD;
+	msgs[1].len = data_len;
+	msgs[1].buf = buffer;
+
+	ret = i2c_transfer(client->adapter, msgs, ARRAY_SIZE(msgs));
+	if (ret < 0)
+		dev_err(&client->adapter->dev, "i2c read failed\n");
+	else
+		memcpy(data, buffer, data_len);
+
+	kfree(buffer);
+	return ret;
+}
+
+static int acpi_gsb_i2c_write_bytes(struct i2c_client *client,
+		u8 cmd, u8 *data, u8 data_len)
+{
+
+	struct i2c_msg msgs[1];
+	u8 *buffer;
+	int ret = AE_OK;
+
+	buffer = kzalloc(data_len + 1, GFP_KERNEL);
+	if (!buffer)
+		return AE_NO_MEMORY;
+
+	buffer[0] = cmd;
+	memcpy(buffer + 1, data, data_len);
+
+	msgs[0].addr = client->addr;
+	msgs[0].flags = client->flags;
+	msgs[0].len = data_len + 1;
+	msgs[0].buf = buffer;
+
+	ret = i2c_transfer(client->adapter, msgs, ARRAY_SIZE(msgs));
+	if (ret < 0)
+		dev_err(&client->adapter->dev, "i2c write failed\n");
+
+	kfree(buffer);
+	return ret;
+}
+
+static acpi_status
+i2c_acpi_space_handler(u32 function, acpi_physical_address command,
+			u32 bits, u64 *value64,
+			void *handler_context, void *region_context)
+{
+	struct gsb_buffer *gsb = (struct gsb_buffer *)value64;
+	struct i2c_acpi_handler_data *data = handler_context;
+	struct acpi_connection_info *info = &data->info;
+	struct acpi_resource_i2c_serialbus *sb;
+	struct i2c_adapter *adapter = data->adapter;
+	struct i2c_client *client;
+	struct acpi_resource *ares;
+	u32 accessor_type = function >> 16;
+	u8 action = function & ACPI_IO_MASK;
+	acpi_status ret;
+	int status;
+
+	ret = acpi_buffer_to_resource(info->connection, info->length, &ares);
+	if (ACPI_FAILURE(ret))
+		return ret;
+
+	client = kzalloc(sizeof(*client), GFP_KERNEL);
+	if (!client) {
+		ret = AE_NO_MEMORY;
+		goto err;
+	}
+
+	if (!value64 || ares->type != ACPI_RESOURCE_TYPE_SERIAL_BUS) {
+		ret = AE_BAD_PARAMETER;
+		goto err;
+	}
+
+	sb = &ares->data.i2c_serial_bus;
+	if (sb->type != ACPI_RESOURCE_SERIAL_TYPE_I2C) {
+		ret = AE_BAD_PARAMETER;
+		goto err;
+	}
+
+	client->adapter = adapter;
+	client->addr = sb->slave_address;
+
+	if (sb->access_mode == ACPI_I2C_10BIT_MODE)
+		client->flags |= I2C_CLIENT_TEN;
+
+	switch (accessor_type) {
+	case ACPI_GSB_ACCESS_ATTRIB_SEND_RCV:
+		if (action == ACPI_READ) {
+			status = i2c_smbus_read_byte(client);
+			if (status >= 0) {
+				gsb->bdata = status;
+				status = 0;
+			}
+		} else {
+			status = i2c_smbus_write_byte(client, gsb->bdata);
+		}
+		break;
+
+	case ACPI_GSB_ACCESS_ATTRIB_BYTE:
+		if (action == ACPI_READ) {
+			status = i2c_smbus_read_byte_data(client, command);
+			if (status >= 0) {
+				gsb->bdata = status;
+				status = 0;
+			}
+		} else {
+			status = i2c_smbus_write_byte_data(client, command,
+					gsb->bdata);
+		}
+		break;
+
+	case ACPI_GSB_ACCESS_ATTRIB_WORD:
+		if (action == ACPI_READ) {
+			status = i2c_smbus_read_word_data(client, command);
+			if (status >= 0) {
+				gsb->wdata = status;
+				status = 0;
+			}
+		} else {
+			status = i2c_smbus_write_word_data(client, command,
+					gsb->wdata);
+		}
+		break;
+
+	case ACPI_GSB_ACCESS_ATTRIB_BLOCK:
+		if (action == ACPI_READ) {
+			status = i2c_smbus_read_block_data(client, command,
+					gsb->data);
+			if (status >= 0) {
+				gsb->len = status;
+				status = 0;
+			}
+		} else {
+			status = i2c_smbus_write_block_data(client, command,
+					gsb->len, gsb->data);
+		}
+		break;
+
+	case ACPI_GSB_ACCESS_ATTRIB_MULTIBYTE:
+		if (action == ACPI_READ) {
+			status = acpi_gsb_i2c_read_bytes(client, command,
+					gsb->data, info->access_length);
+			if (status > 0)
+				status = 0;
+		} else {
+			status = acpi_gsb_i2c_write_bytes(client, command,
+					gsb->data, info->access_length);
+		}
+		break;
+
+	default:
+		dev_warn(&adapter->dev, "protocol 0x%02x not supported for client 0x%02x\n",
+			 accessor_type, client->addr);
+		ret = AE_BAD_PARAMETER;
+		goto err;
+	}
+
+	gsb->status = status;
+
+ err:
+	kfree(client);
+	ACPI_FREE(ares);
+	return ret;
+}
+
+
+int i2c_acpi_install_space_handler(struct i2c_adapter *adapter)
+{
+	acpi_handle handle;
+	struct i2c_acpi_handler_data *data;
+	acpi_status status;
+
+	if (!adapter->dev.parent)
+		return -ENODEV;
+
+	handle = ACPI_HANDLE(adapter->dev.parent);
+
+	if (!handle)
+		return -ENODEV;
+
+	data = kzalloc(sizeof(struct i2c_acpi_handler_data),
+			    GFP_KERNEL);
+	if (!data)
+		return -ENOMEM;
+
+	data->adapter = adapter;
+	status = acpi_bus_attach_private_data(handle, (void *)data);
+	if (ACPI_FAILURE(status)) {
+		kfree(data);
+		return -ENOMEM;
+	}
+
+	status = acpi_install_address_space_handler(handle,
+				ACPI_ADR_SPACE_GSBUS,
+				&i2c_acpi_space_handler,
+				NULL,
+				data);
+	if (ACPI_FAILURE(status)) {
+		dev_err(&adapter->dev, "Error installing i2c space handler\n");
+		acpi_bus_detach_private_data(handle);
+		kfree(data);
+		return -ENOMEM;
+	}
+
+	acpi_walk_dep_device_list(handle);
+	return 0;
+}
+
+void i2c_acpi_remove_space_handler(struct i2c_adapter *adapter)
+{
+	acpi_handle handle;
+	struct i2c_acpi_handler_data *data;
+	acpi_status status;
+
+	if (!adapter->dev.parent)
+		return;
+
+	handle = ACPI_HANDLE(adapter->dev.parent);
+
+	if (!handle)
+		return;
+
+	acpi_remove_address_space_handler(handle,
+				ACPI_ADR_SPACE_GSBUS,
+				&i2c_acpi_space_handler);
+
+	status = acpi_bus_get_private_data(handle, (void **)&data);
+	if (ACPI_SUCCESS(status))
+		kfree(data);
+
+	acpi_bus_detach_private_data(handle);
+}
+#endif /* CONFIG_ACPI_I2C_OPREGION */
diff --git a/drivers/i2c/i2c-core.c b/drivers/i2c/i2c-core-base.c
index 82576aaccc90..12822a4b8f8f 100644
--- a/drivers/i2c/i2c-core.c
+++ b/drivers/i2c/i2c-core-base.c
@@ -1,36 +1,26 @@
-/* i2c-core.c - a device driver for the iic-bus interface		     */
-/* ------------------------------------------------------------------------- */
-/*   Copyright (C) 1995-99 Simon G. Vogl
-
-    This program is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    This program is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-    GNU General Public License for more details.			     */
-/* ------------------------------------------------------------------------- */
-
-/* With some changes from Kyösti Mälkki <kmalkki@cc.hut.fi>.
-   All SMBus-related things are written by Frodo Looijaard <frodol@dds.nl>
-   SMBus 2.0 support by Mark Studebaker <mdsxyz123@yahoo.com> and
-   Jean Delvare <jdelvare@suse.de>
-   Mux support by Rodolfo Giometti <giometti@enneenne.com> and
-   Michael Lawnick <michael.lawnick.ext@nsn.com>
-   OF support is copyright (c) 2008 Jochen Friedrich <jochen@scram.de>
-   (based on a previous patch from Jon Smirl <jonsmirl@gmail.com>) and
-   (c) 2013  Wolfram Sang <wsa@the-dreams.de>
-   I2C ACPI code Copyright (C) 2014 Intel Corp
-   Author: Lan Tianyu <tianyu.lan@intel.com>
-   I2C slave support (c) 2014 by Wolfram Sang <wsa@sang-engineering.com>
+/*
+ * Linux I2C core
+ *
+ * Copyright (C) 1995-99 Simon G. Vogl
+ *   With some changes from Kyösti Mälkki <kmalkki@cc.hut.fi>
+ *   Mux support by Rodolfo Giometti <giometti@enneenne.com> and
+ *   Michael Lawnick <michael.lawnick.ext@nsn.com>
+ *
+ * Copyright (C) 2013-2017 Wolfram Sang <wsa@the-dreams.de>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the Free
+ * Software Foundation; either version 2 of the License, or (at your option)
+ * any later version.
+ *
+ * This program is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
+ * FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.
  */
 
 #define pr_fmt(fmt) "i2c-core: " fmt
 
 #include <dt-bindings/i2c/i2c.h>
-#include <linux/uaccess.h>
 #include <linux/acpi.h>
 #include <linux/clk/clk-conf.h>
 #include <linux/completion.h>
@@ -38,7 +28,6 @@
 #include <linux/err.h>
 #include <linux/errno.h>
 #include <linux/gpio.h>
-#include <linux/hardirq.h>
 #include <linux/i2c.h>
 #include <linux/idr.h>
 #include <linux/init.h>
@@ -68,9 +57,10 @@
 #define I2C_ADDR_7BITS_MAX	0x77
 #define I2C_ADDR_7BITS_COUNT	(I2C_ADDR_7BITS_MAX + 1)
 
-/* core_lock protects i2c_adapter_idr, and guarantees
-   that device detection, deletion of detected devices, and attach_adapter
-   calls are serialized */
+/*
+ * core_lock protects i2c_adapter_idr, and guarantees that device detection,
+ * deletion of detected devices, and attach_adapter calls are serialized
+ */
 static DEFINE_MUTEX(core_lock);
 static DEFINE_IDR(i2c_adapter_idr);
 
@@ -90,652 +80,6 @@ void i2c_transfer_trace_unreg(void)
 	static_key_slow_dec(&i2c_trace_msg);
 }
 
-#if defined(CONFIG_ACPI)
-struct i2c_acpi_handler_data {
-	struct acpi_connection_info info;
-	struct i2c_adapter *adapter;
-};
-
-struct gsb_buffer {
-	u8	status;
-	u8	len;
-	union {
-		u16	wdata;
-		u8	bdata;
-		u8	data[0];
-	};
-} __packed;
-
-struct i2c_acpi_lookup {
-	struct i2c_board_info *info;
-	acpi_handle adapter_handle;
-	acpi_handle device_handle;
-	acpi_handle search_handle;
-	int n;
-	int index;
-	u32 speed;
-	u32 min_speed;
-};
-
-static int i2c_acpi_fill_info(struct acpi_resource *ares, void *data)
-{
-	struct i2c_acpi_lookup *lookup = data;
-	struct i2c_board_info *info = lookup->info;
-	struct acpi_resource_i2c_serialbus *sb;
-	acpi_status status;
-
-	if (info->addr || ares->type != ACPI_RESOURCE_TYPE_SERIAL_BUS)
-		return 1;
-
-	sb = &ares->data.i2c_serial_bus;
-	if (sb->type != ACPI_RESOURCE_SERIAL_TYPE_I2C)
-		return 1;
-
-	if (lookup->index != -1 && lookup->n++ != lookup->index)
-		return 1;
-
-	status = acpi_get_handle(lookup->device_handle,
-				 sb->resource_source.string_ptr,
-				 &lookup->adapter_handle);
-	if (!ACPI_SUCCESS(status))
-		return 1;
-
-	info->addr = sb->slave_address;
-	lookup->speed = sb->connection_speed;
-	if (sb->access_mode == ACPI_I2C_10BIT_MODE)
-		info->flags |= I2C_CLIENT_TEN;
-
-	return 1;
-}
-
-static int i2c_acpi_do_lookup(struct acpi_device *adev,
-			      struct i2c_acpi_lookup *lookup)
-{
-	struct i2c_board_info *info = lookup->info;
-	struct list_head resource_list;
-	int ret;
-
-	if (acpi_bus_get_status(adev) || !adev->status.present ||
-	    acpi_device_enumerated(adev))
-		return -EINVAL;
-
-	memset(info, 0, sizeof(*info));
-	lookup->device_handle = acpi_device_handle(adev);
-
-	/* Look up for I2cSerialBus resource */
-	INIT_LIST_HEAD(&resource_list);
-	ret = acpi_dev_get_resources(adev, &resource_list,
-				     i2c_acpi_fill_info, lookup);
-	acpi_dev_free_resource_list(&resource_list);
-
-	if (ret < 0 || !info->addr)
-		return -EINVAL;
-
-	return 0;
-}
-
-static int i2c_acpi_get_info(struct acpi_device *adev,
-			     struct i2c_board_info *info,
-			     struct i2c_adapter *adapter,
-			     acpi_handle *adapter_handle)
-{
-	struct list_head resource_list;
-	struct resource_entry *entry;
-	struct i2c_acpi_lookup lookup;
-	int ret;
-
-	memset(&lookup, 0, sizeof(lookup));
-	lookup.info = info;
-	lookup.index = -1;
-
-	ret = i2c_acpi_do_lookup(adev, &lookup);
-	if (ret)
-		return ret;
-
-	if (adapter) {
-		/* The adapter must match the one in I2cSerialBus() connector */
-		if (ACPI_HANDLE(&adapter->dev) != lookup.adapter_handle)
-			return -ENODEV;
-	} else {
-		struct acpi_device *adapter_adev;
-
-		/* The adapter must be present */
-		if (acpi_bus_get_device(lookup.adapter_handle, &adapter_adev))
-			return -ENODEV;
-		if (acpi_bus_get_status(adapter_adev) ||
-		    !adapter_adev->status.present)
-			return -ENODEV;
-	}
-
-	info->fwnode = acpi_fwnode_handle(adev);
-	if (adapter_handle)
-		*adapter_handle = lookup.adapter_handle;
-
-	/* Then fill IRQ number if any */
-	INIT_LIST_HEAD(&resource_list);
-	ret = acpi_dev_get_resources(adev, &resource_list, NULL, NULL);
-	if (ret < 0)
-		return -EINVAL;
-
-	resource_list_for_each_entry(entry, &resource_list) {
-		if (resource_type(entry->res) == IORESOURCE_IRQ) {
-			info->irq = entry->res->start;
-			break;
-		}
-	}
-
-	acpi_dev_free_resource_list(&resource_list);
-
-	acpi_set_modalias(adev, dev_name(&adev->dev), info->type,
-			  sizeof(info->type));
-
-	return 0;
-}
-
-static void i2c_acpi_register_device(struct i2c_adapter *adapter,
-				     struct acpi_device *adev,
-				     struct i2c_board_info *info)
-{
-	adev->power.flags.ignore_parent = true;
-	acpi_device_set_enumerated(adev);
-
-	if (!i2c_new_device(adapter, info)) {
-		adev->power.flags.ignore_parent = false;
-		dev_err(&adapter->dev,
-			"failed to add I2C device %s from ACPI\n",
-			dev_name(&adev->dev));
-	}
-}
-
-static acpi_status i2c_acpi_add_device(acpi_handle handle, u32 level,
-				       void *data, void **return_value)
-{
-	struct i2c_adapter *adapter = data;
-	struct acpi_device *adev;
-	struct i2c_board_info info;
-
-	if (acpi_bus_get_device(handle, &adev))
-		return AE_OK;
-
-	if (i2c_acpi_get_info(adev, &info, adapter, NULL))
-		return AE_OK;
-
-	i2c_acpi_register_device(adapter, adev, &info);
-
-	return AE_OK;
-}
-
-#define I2C_ACPI_MAX_SCAN_DEPTH 32
-
-/**
- * i2c_acpi_register_devices - enumerate I2C slave devices behind adapter
- * @adap: pointer to adapter
- *
- * Enumerate all I2C slave devices behind this adapter by walking the ACPI
- * namespace. When a device is found it will be added to the Linux device
- * model and bound to the corresponding ACPI handle.
- */
-static void i2c_acpi_register_devices(struct i2c_adapter *adap)
-{
-	acpi_status status;
-
-	if (!has_acpi_companion(&adap->dev))
-		return;
-
-	status = acpi_walk_namespace(ACPI_TYPE_DEVICE, ACPI_ROOT_OBJECT,
-				     I2C_ACPI_MAX_SCAN_DEPTH,
-				     i2c_acpi_add_device, NULL,
-				     adap, NULL);
-	if (ACPI_FAILURE(status))
-		dev_warn(&adap->dev, "failed to enumerate I2C slaves\n");
-}
-
-static acpi_status i2c_acpi_lookup_speed(acpi_handle handle, u32 level,
-					   void *data, void **return_value)
-{
-	struct i2c_acpi_lookup *lookup = data;
-	struct acpi_device *adev;
-
-	if (acpi_bus_get_device(handle, &adev))
-		return AE_OK;
-
-	if (i2c_acpi_do_lookup(adev, lookup))
-		return AE_OK;
-
-	if (lookup->search_handle != lookup->adapter_handle)
-		return AE_OK;
-
-	if (lookup->speed <= lookup->min_speed)
-		lookup->min_speed = lookup->speed;
-
-	return AE_OK;
-}
-
-/**
- * i2c_acpi_find_bus_speed - find I2C bus speed from ACPI
- * @dev: The device owning the bus
- *
- * Find the I2C bus speed by walking the ACPI namespace for all I2C slaves
- * devices connected to this bus and use the speed of slowest device.
- *
- * Returns the speed in Hz or zero
- */
-u32 i2c_acpi_find_bus_speed(struct device *dev)
-{
-	struct i2c_acpi_lookup lookup;
-	struct i2c_board_info dummy;
-	acpi_status status;
-
-	if (!has_acpi_companion(dev))
-		return 0;
-
-	memset(&lookup, 0, sizeof(lookup));
-	lookup.search_handle = ACPI_HANDLE(dev);
-	lookup.min_speed = UINT_MAX;
-	lookup.info = &dummy;
-	lookup.index = -1;
-
-	status = acpi_walk_namespace(ACPI_TYPE_DEVICE, ACPI_ROOT_OBJECT,
-				     I2C_ACPI_MAX_SCAN_DEPTH,
-				     i2c_acpi_lookup_speed, NULL,
-				     &lookup, NULL);
-
-	if (ACPI_FAILURE(status)) {
-		dev_warn(dev, "unable to find I2C bus speed from ACPI\n");
-		return 0;
-	}
-
-	return lookup.min_speed != UINT_MAX ? lookup.min_speed : 0;
-}
-EXPORT_SYMBOL_GPL(i2c_acpi_find_bus_speed);
-
-static int i2c_acpi_match_adapter(struct device *dev, void *data)
-{
-	struct i2c_adapter *adapter = i2c_verify_adapter(dev);
-
-	if (!adapter)
-		return 0;
-
-	return ACPI_HANDLE(dev) == (acpi_handle)data;
-}
-
-static int i2c_acpi_match_device(struct device *dev, void *data)
-{
-	return ACPI_COMPANION(dev) == data;
-}
-
-static struct i2c_adapter *i2c_acpi_find_adapter_by_handle(acpi_handle handle)
-{
-	struct device *dev;
-
-	dev = bus_find_device(&i2c_bus_type, NULL, handle,
-			      i2c_acpi_match_adapter);
-	return dev ? i2c_verify_adapter(dev) : NULL;
-}
-
-static struct i2c_client *i2c_acpi_find_client_by_adev(struct acpi_device *adev)
-{
-	struct device *dev;
-
-	dev = bus_find_device(&i2c_bus_type, NULL, adev, i2c_acpi_match_device);
-	return dev ? i2c_verify_client(dev) : NULL;
-}
-
-static int i2c_acpi_notify(struct notifier_block *nb, unsigned long value,
-			   void *arg)
-{
-	struct acpi_device *adev = arg;
-	struct i2c_board_info info;
-	acpi_handle adapter_handle;
-	struct i2c_adapter *adapter;
-	struct i2c_client *client;
-
-	switch (value) {
-	case ACPI_RECONFIG_DEVICE_ADD:
-		if (i2c_acpi_get_info(adev, &info, NULL, &adapter_handle))
-			break;
-
-		adapter = i2c_acpi_find_adapter_by_handle(adapter_handle);
-		if (!adapter)
-			break;
-
-		i2c_acpi_register_device(adapter, adev, &info);
-		break;
-	case ACPI_RECONFIG_DEVICE_REMOVE:
-		if (!acpi_device_enumerated(adev))
-			break;
-
-		client = i2c_acpi_find_client_by_adev(adev);
-		if (!client)
-			break;
-
-		i2c_unregister_device(client);
-		put_device(&client->dev);
-		break;
-	}
-
-	return NOTIFY_OK;
-}
-
-static struct notifier_block i2c_acpi_notifier = {
-	.notifier_call = i2c_acpi_notify,
-};
-
-/**
- * i2c_acpi_new_device - Create i2c-client for the Nth I2cSerialBus resource
- * @dev:     Device owning the ACPI resources to get the client from
- * @index:   Index of ACPI resource to get
- * @info:    describes the I2C device; note this is modified (addr gets set)
- * Context: can sleep
- *
- * By default the i2c subsys creates an i2c-client for the first I2cSerialBus
- * resource of an acpi_device, but some acpi_devices have multiple I2cSerialBus
- * resources, in that case this function can be used to create an i2c-client
- * for other I2cSerialBus resources in the Current Resource Settings table.
- *
- * Also see i2c_new_device, which this function calls to create the i2c-client.
- *
- * Returns a pointer to the new i2c-client, or NULL if the adapter is not found.
- */
-struct i2c_client *i2c_acpi_new_device(struct device *dev, int index,
-				       struct i2c_board_info *info)
-{
-	struct i2c_acpi_lookup lookup;
-	struct i2c_adapter *adapter;
-	struct acpi_device *adev;
-	LIST_HEAD(resource_list);
-	int ret;
-
-	adev = ACPI_COMPANION(dev);
-	if (!adev)
-		return NULL;
-
-	memset(&lookup, 0, sizeof(lookup));
-	lookup.info = info;
-	lookup.device_handle = acpi_device_handle(adev);
-	lookup.index = index;
-
-	ret = acpi_dev_get_resources(adev, &resource_list,
-				     i2c_acpi_fill_info, &lookup);
-	acpi_dev_free_resource_list(&resource_list);
-
-	if (ret < 0 || !info->addr)
-		return NULL;
-
-	adapter = i2c_acpi_find_adapter_by_handle(lookup.adapter_handle);
-	if (!adapter)
-		return NULL;
-
-	return i2c_new_device(adapter, info);
-}
-EXPORT_SYMBOL_GPL(i2c_acpi_new_device);
-#else /* CONFIG_ACPI */
-static inline void i2c_acpi_register_devices(struct i2c_adapter *adap) { }
-extern struct notifier_block i2c_acpi_notifier;
-#endif /* CONFIG_ACPI */
-
-#ifdef CONFIG_ACPI_I2C_OPREGION
-static int acpi_gsb_i2c_read_bytes(struct i2c_client *client,
-		u8 cmd, u8 *data, u8 data_len)
-{
-
-	struct i2c_msg msgs[2];
-	int ret;
-	u8 *buffer;
-
-	buffer = kzalloc(data_len, GFP_KERNEL);
-	if (!buffer)
-		return AE_NO_MEMORY;
-
-	msgs[0].addr = client->addr;
-	msgs[0].flags = client->flags;
-	msgs[0].len = 1;
-	msgs[0].buf = &cmd;
-
-	msgs[1].addr = client->addr;
-	msgs[1].flags = client->flags | I2C_M_RD;
-	msgs[1].len = data_len;
-	msgs[1].buf = buffer;
-
-	ret = i2c_transfer(client->adapter, msgs, ARRAY_SIZE(msgs));
-	if (ret < 0)
-		dev_err(&client->adapter->dev, "i2c read failed\n");
-	else
-		memcpy(data, buffer, data_len);
-
-	kfree(buffer);
-	return ret;
-}
-
-static int acpi_gsb_i2c_write_bytes(struct i2c_client *client,
-		u8 cmd, u8 *data, u8 data_len)
-{
-
-	struct i2c_msg msgs[1];
-	u8 *buffer;
-	int ret = AE_OK;
-
-	buffer = kzalloc(data_len + 1, GFP_KERNEL);
-	if (!buffer)
-		return AE_NO_MEMORY;
-
-	buffer[0] = cmd;
-	memcpy(buffer + 1, data, data_len);
-
-	msgs[0].addr = client->addr;
-	msgs[0].flags = client->flags;
-	msgs[0].len = data_len + 1;
-	msgs[0].buf = buffer;
-
-	ret = i2c_transfer(client->adapter, msgs, ARRAY_SIZE(msgs));
-	if (ret < 0)
-		dev_err(&client->adapter->dev, "i2c write failed\n");
-
-	kfree(buffer);
-	return ret;
-}
-
-static acpi_status
-i2c_acpi_space_handler(u32 function, acpi_physical_address command,
-			u32 bits, u64 *value64,
-			void *handler_context, void *region_context)
-{
-	struct gsb_buffer *gsb = (struct gsb_buffer *)value64;
-	struct i2c_acpi_handler_data *data = handler_context;
-	struct acpi_connection_info *info = &data->info;
-	struct acpi_resource_i2c_serialbus *sb;
-	struct i2c_adapter *adapter = data->adapter;
-	struct i2c_client *client;
-	struct acpi_resource *ares;
-	u32 accessor_type = function >> 16;
-	u8 action = function & ACPI_IO_MASK;
-	acpi_status ret;
-	int status;
-
-	ret = acpi_buffer_to_resource(info->connection, info->length, &ares);
-	if (ACPI_FAILURE(ret))
-		return ret;
-
-	client = kzalloc(sizeof(*client), GFP_KERNEL);
-	if (!client) {
-		ret = AE_NO_MEMORY;
-		goto err;
-	}
-
-	if (!value64 || ares->type != ACPI_RESOURCE_TYPE_SERIAL_BUS) {
-		ret = AE_BAD_PARAMETER;
-		goto err;
-	}
-
-	sb = &ares->data.i2c_serial_bus;
-	if (sb->type != ACPI_RESOURCE_SERIAL_TYPE_I2C) {
-		ret = AE_BAD_PARAMETER;
-		goto err;
-	}
-
-	client->adapter = adapter;
-	client->addr = sb->slave_address;
-
-	if (sb->access_mode == ACPI_I2C_10BIT_MODE)
-		client->flags |= I2C_CLIENT_TEN;
-
-	switch (accessor_type) {
-	case ACPI_GSB_ACCESS_ATTRIB_SEND_RCV:
-		if (action == ACPI_READ) {
-			status = i2c_smbus_read_byte(client);
-			if (status >= 0) {
-				gsb->bdata = status;
-				status = 0;
-			}
-		} else {
-			status = i2c_smbus_write_byte(client, gsb->bdata);
-		}
-		break;
-
-	case ACPI_GSB_ACCESS_ATTRIB_BYTE:
-		if (action == ACPI_READ) {
-			status = i2c_smbus_read_byte_data(client, command);
-			if (status >= 0) {
-				gsb->bdata = status;
-				status = 0;
-			}
-		} else {
-			status = i2c_smbus_write_byte_data(client, command,
-					gsb->bdata);
-		}
-		break;
-
-	case ACPI_GSB_ACCESS_ATTRIB_WORD:
-		if (action == ACPI_READ) {
-			status = i2c_smbus_read_word_data(client, command);
-			if (status >= 0) {
-				gsb->wdata = status;
-				status = 0;
-			}
-		} else {
-			status = i2c_smbus_write_word_data(client, command,
-					gsb->wdata);
-		}
-		break;
-
-	case ACPI_GSB_ACCESS_ATTRIB_BLOCK:
-		if (action == ACPI_READ) {
-			status = i2c_smbus_read_block_data(client, command,
-					gsb->data);
-			if (status >= 0) {
-				gsb->len = status;
-				status = 0;
-			}
-		} else {
-			status = i2c_smbus_write_block_data(client, command,
-					gsb->len, gsb->data);
-		}
-		break;
-
-	case ACPI_GSB_ACCESS_ATTRIB_MULTIBYTE:
-		if (action == ACPI_READ) {
-			status = acpi_gsb_i2c_read_bytes(client, command,
-					gsb->data, info->access_length);
-			if (status > 0)
-				status = 0;
-		} else {
-			status = acpi_gsb_i2c_write_bytes(client, command,
-					gsb->data, info->access_length);
-		}
-		break;
-
-	default:
-		dev_warn(&adapter->dev, "protocol 0x%02x not supported for client 0x%02x\n",
-			 accessor_type, client->addr);
-		ret = AE_BAD_PARAMETER;
-		goto err;
-	}
-
-	gsb->status = status;
-
- err:
-	kfree(client);
-	ACPI_FREE(ares);
-	return ret;
-}
-
-
-static int i2c_acpi_install_space_handler(struct i2c_adapter *adapter)
-{
-	acpi_handle handle;
-	struct i2c_acpi_handler_data *data;
-	acpi_status status;
-
-	if (!adapter->dev.parent)
-		return -ENODEV;
-
-	handle = ACPI_HANDLE(adapter->dev.parent);
-
-	if (!handle)
-		return -ENODEV;
-
-	data = kzalloc(sizeof(struct i2c_acpi_handler_data),
-			    GFP_KERNEL);
-	if (!data)
-		return -ENOMEM;
-
-	data->adapter = adapter;
-	status = acpi_bus_attach_private_data(handle, (void *)data);
-	if (ACPI_FAILURE(status)) {
-		kfree(data);
-		return -ENOMEM;
-	}
-
-	status = acpi_install_address_space_handler(handle,
-				ACPI_ADR_SPACE_GSBUS,
-				&i2c_acpi_space_handler,
-				NULL,
-				data);
-	if (ACPI_FAILURE(status)) {
-		dev_err(&adapter->dev, "Error installing i2c space handler\n");
-		acpi_bus_detach_private_data(handle);
-		kfree(data);
-		return -ENOMEM;
-	}
-
-	acpi_walk_dep_device_list(handle);
-	return 0;
-}
-
-static void i2c_acpi_remove_space_handler(struct i2c_adapter *adapter)
-{
-	acpi_handle handle;
-	struct i2c_acpi_handler_data *data;
-	acpi_status status;
-
-	if (!adapter->dev.parent)
-		return;
-
-	handle = ACPI_HANDLE(adapter->dev.parent);
-
-	if (!handle)
-		return;
-
-	acpi_remove_address_space_handler(handle,
-				ACPI_ADR_SPACE_GSBUS,
-				&i2c_acpi_space_handler);
-
-	status = acpi_bus_get_private_data(handle, (void **)&data);
-	if (ACPI_SUCCESS(status))
-		kfree(data);
-
-	acpi_bus_detach_private_data(handle);
-}
-#else /* CONFIG_ACPI_I2C_OPREGION */
-static inline void i2c_acpi_remove_space_handler(struct i2c_adapter *adapter)
-{ }
-
-static inline int i2c_acpi_install_space_handler(struct i2c_adapter *adapter)
-{ return 0; }
-#endif /* CONFIG_ACPI_I2C_OPREGION */
-
-/* ------------------------------------------------------------------------- */
-
 const struct i2c_device_id *i2c_match_id(const struct i2c_device_id *id,
 						const struct i2c_client *client)
 {
@@ -1013,6 +357,7 @@ static int i2c_device_probe(struct device *dev)
 	 * Tree match table entry is supplied for the probing device.
 	 */
 	if (!driver->id_table &&
+	    !i2c_acpi_match_device(dev->driver->acpi_match_table, client) &&
 	    !i2c_of_match_device(dev->driver->of_match_table, client))
 		return -ENODEV;
 
@@ -1195,7 +540,7 @@ static unsigned short i2c_encode_flags_to_addr(struct i2c_client *client)
 
 /* This is a permissive address validity check, I2C address map constraints
  * are purposely not enforced, except for the general call address. */
-static int i2c_check_addr_validity(unsigned addr, unsigned short flags)
+int i2c_check_addr_validity(unsigned addr, unsigned short flags)
 {
 	if (flags & I2C_CLIENT_TEN) {
 		/* 10-bit address, all values are valid */
@@ -1213,7 +558,7 @@ static int i2c_check_addr_validity(unsigned addr, unsigned short flags)
  * device uses a reserved address, then it shouldn't be probed. 7-bit
  * addressing is assumed, 10-bit address devices are rare and should be
  * explicitly enumerated. */
-static int i2c_check_7bit_addr_validity_strict(unsigned short addr)
+int i2c_check_7bit_addr_validity_strict(unsigned short addr)
 {
 	/*
 	 * Reserved addresses per I2C specification:
@@ -1764,210 +1109,6 @@ static void i2c_scan_static_board_info(struct i2c_adapter *adapter)
 	up_read(&__i2c_board_lock);
 }
 
-/* OF support code */
-
-#if IS_ENABLED(CONFIG_OF)
-static struct i2c_client *of_i2c_register_device(struct i2c_adapter *adap,
-						 struct device_node *node)
-{
-	struct i2c_client *result;
-	struct i2c_board_info info = {};
-	struct dev_archdata dev_ad = {};
-	const __be32 *addr_be;
-	u32 addr;
-	int len;
-
-	dev_dbg(&adap->dev, "of_i2c: register %s\n", node->full_name);
-
-	if (of_modalias_node(node, info.type, sizeof(info.type)) < 0) {
-		dev_err(&adap->dev, "of_i2c: modalias failure on %s\n",
-			node->full_name);
-		return ERR_PTR(-EINVAL);
-	}
-
-	addr_be = of_get_property(node, "reg", &len);
-	if (!addr_be || (len < sizeof(*addr_be))) {
-		dev_err(&adap->dev, "of_i2c: invalid reg on %s\n",
-			node->full_name);
-		return ERR_PTR(-EINVAL);
-	}
-
-	addr = be32_to_cpup(addr_be);
-	if (addr & I2C_TEN_BIT_ADDRESS) {
-		addr &= ~I2C_TEN_BIT_ADDRESS;
-		info.flags |= I2C_CLIENT_TEN;
-	}
-
-	if (addr & I2C_OWN_SLAVE_ADDRESS) {
-		addr &= ~I2C_OWN_SLAVE_ADDRESS;
-		info.flags |= I2C_CLIENT_SLAVE;
-	}
-
-	if (i2c_check_addr_validity(addr, info.flags)) {
-		dev_err(&adap->dev, "of_i2c: invalid addr=%x on %s\n",
-			addr, node->full_name);
-		return ERR_PTR(-EINVAL);
-	}
-
-	info.addr = addr;
-	info.of_node = of_node_get(node);
-	info.archdata = &dev_ad;
-
-	if (of_property_read_bool(node, "host-notify"))
-		info.flags |= I2C_CLIENT_HOST_NOTIFY;
-
-	if (of_get_property(node, "wakeup-source", NULL))
-		info.flags |= I2C_CLIENT_WAKE;
-
-	result = i2c_new_device(adap, &info);
-	if (result == NULL) {
-		dev_err(&adap->dev, "of_i2c: Failure registering %s\n",
-			node->full_name);
-		of_node_put(node);
-		return ERR_PTR(-EINVAL);
-	}
-	return result;
-}
-
-static void of_i2c_register_devices(struct i2c_adapter *adap)
-{
-	struct device_node *bus, *node;
-	struct i2c_client *client;
-
-	/* Only register child devices if the adapter has a node pointer set */
-	if (!adap->dev.of_node)
-		return;
-
-	dev_dbg(&adap->dev, "of_i2c: walking child nodes\n");
-
-	bus = of_get_child_by_name(adap->dev.of_node, "i2c-bus");
-	if (!bus)
-		bus = of_node_get(adap->dev.of_node);
-
-	for_each_available_child_of_node(bus, node) {
-		if (of_node_test_and_set_flag(node, OF_POPULATED))
-			continue;
-
-		client = of_i2c_register_device(adap, node);
-		if (IS_ERR(client)) {
-			dev_warn(&adap->dev,
-				 "Failed to create I2C device for %s\n",
-				 node->full_name);
-			of_node_clear_flag(node, OF_POPULATED);
-		}
-	}
-
-	of_node_put(bus);
-}
-
-static int of_dev_node_match(struct device *dev, void *data)
-{
-	return dev->of_node == data;
-}
-
-/* must call put_device() when done with returned i2c_client device */
-struct i2c_client *of_find_i2c_device_by_node(struct device_node *node)
-{
-	struct device *dev;
-	struct i2c_client *client;
-
-	dev = bus_find_device(&i2c_bus_type, NULL, node, of_dev_node_match);
-	if (!dev)
-		return NULL;
-
-	client = i2c_verify_client(dev);
-	if (!client)
-		put_device(dev);
-
-	return client;
-}
-EXPORT_SYMBOL(of_find_i2c_device_by_node);
-
-/* must call put_device() when done with returned i2c_adapter device */
-struct i2c_adapter *of_find_i2c_adapter_by_node(struct device_node *node)
-{
-	struct device *dev;
-	struct i2c_adapter *adapter;
-
-	dev = bus_find_device(&i2c_bus_type, NULL, node, of_dev_node_match);
-	if (!dev)
-		return NULL;
-
-	adapter = i2c_verify_adapter(dev);
-	if (!adapter)
-		put_device(dev);
-
-	return adapter;
-}
-EXPORT_SYMBOL(of_find_i2c_adapter_by_node);
-
-/* must call i2c_put_adapter() when done with returned i2c_adapter device */
-struct i2c_adapter *of_get_i2c_adapter_by_node(struct device_node *node)
-{
-	struct i2c_adapter *adapter;
-
-	adapter = of_find_i2c_adapter_by_node(node);
-	if (!adapter)
-		return NULL;
-
-	if (!try_module_get(adapter->owner)) {
-		put_device(&adapter->dev);
-		adapter = NULL;
-	}
-
-	return adapter;
-}
-EXPORT_SYMBOL(of_get_i2c_adapter_by_node);
-
-static const struct of_device_id*
-i2c_of_match_device_sysfs(const struct of_device_id *matches,
-				  struct i2c_client *client)
-{
-	const char *name;
-
-	for (; matches->compatible[0]; matches++) {
-		/*
-		 * Adding devices through the i2c sysfs interface provides us
-		 * a string to match which may be compatible with the device
-		 * tree compatible strings, however with no actual of_node the
-		 * of_match_device() will not match
-		 */
-		if (sysfs_streq(client->name, matches->compatible))
-			return matches;
-
-		name = strchr(matches->compatible, ',');
-		if (!name)
-			name = matches->compatible;
-		else
-			name++;
-
-		if (sysfs_streq(client->name, name))
-			return matches;
-	}
-
-	return NULL;
-}
-
-const struct of_device_id
-*i2c_of_match_device(const struct of_device_id *matches,
-		     struct i2c_client *client)
-{
-	const struct of_device_id *match;
-
-	if (!(client && matches))
-		return NULL;
-
-	match = of_match_device(matches, &client->dev);
-	if (match)
-		return match;
-
-	return i2c_of_match_device_sysfs(matches, client);
-}
-EXPORT_SYMBOL_GPL(i2c_of_match_device);
-#else
-static void of_i2c_register_devices(struct i2c_adapter *adap) { }
-#endif /* CONFIG_OF */
-
 static int i2c_do_add_adapter(struct i2c_driver *driver,
 			      struct i2c_adapter *adap)
 {
@@ -2562,62 +1703,6 @@ void i2c_clients_command(struct i2c_adapter *adap, unsigned int cmd, void *arg)
 }
 EXPORT_SYMBOL(i2c_clients_command);
 
-#if IS_ENABLED(CONFIG_OF_DYNAMIC)
-static int of_i2c_notify(struct notifier_block *nb, unsigned long action,
-			 void *arg)
-{
-	struct of_reconfig_data *rd = arg;
-	struct i2c_adapter *adap;
-	struct i2c_client *client;
-
-	switch (of_reconfig_get_state_change(action, rd)) {
-	case OF_RECONFIG_CHANGE_ADD:
-		adap = of_find_i2c_adapter_by_node(rd->dn->parent);
-		if (adap == NULL)
-			return NOTIFY_OK;	/* not for us */
-
-		if (of_node_test_and_set_flag(rd->dn, OF_POPULATED)) {
-			put_device(&adap->dev);
-			return NOTIFY_OK;
-		}
-
-		client = of_i2c_register_device(adap, rd->dn);
-		put_device(&adap->dev);
-
-		if (IS_ERR(client)) {
-			dev_err(&adap->dev, "failed to create client for '%s'\n",
-				 rd->dn->full_name);
-			of_node_clear_flag(rd->dn, OF_POPULATED);
-			return notifier_from_errno(PTR_ERR(client));
-		}
-		break;
-	case OF_RECONFIG_CHANGE_REMOVE:
-		/* already depopulated? */
-		if (!of_node_check_flag(rd->dn, OF_POPULATED))
-			return NOTIFY_OK;
-
-		/* find our device by node */
-		client = of_find_i2c_device_by_node(rd->dn);
-		if (client == NULL)
-			return NOTIFY_OK;	/* no? not meant for us */
-
-		/* unregister takes one ref away */
-		i2c_unregister_device(client);
-
-		/* and put the reference of the find */
-		put_device(&client->dev);
-		break;
-	}
-
-	return NOTIFY_OK;
-}
-static struct notifier_block i2c_of_notifier = {
-	.notifier_call = of_i2c_notify,
-};
-#else
-extern struct notifier_block i2c_of_notifier;
-#endif /* CONFIG_OF_DYNAMIC */
-
 static int __init i2c_init(void)
 {
 	int retval;
@@ -3156,676 +2241,6 @@ void i2c_put_adapter(struct i2c_adapter *adap)
 }
 EXPORT_SYMBOL(i2c_put_adapter);
 
-/* The SMBus parts */
-
-#define POLY    (0x1070U << 3)
-static u8 crc8(u16 data)
-{
-	int i;
-
-	for (i = 0; i < 8; i++) {
-		if (data & 0x8000)
-			data = data ^ POLY;
-		data = data << 1;
-	}
-	return (u8)(data >> 8);
-}
-
-/* Incremental CRC8 over count bytes in the array pointed to by p */
-static u8 i2c_smbus_pec(u8 crc, u8 *p, size_t count)
-{
-	int i;
-
-	for (i = 0; i < count; i++)
-		crc = crc8((crc ^ p[i]) << 8);
-	return crc;
-}
-
-/* Assume a 7-bit address, which is reasonable for SMBus */
-static u8 i2c_smbus_msg_pec(u8 pec, struct i2c_msg *msg)
-{
-	/* The address will be sent first */
-	u8 addr = i2c_8bit_addr_from_msg(msg);
-	pec = i2c_smbus_pec(pec, &addr, 1);
-
-	/* The data buffer follows */
-	return i2c_smbus_pec(pec, msg->buf, msg->len);
-}
-
-/* Used for write only transactions */
-static inline void i2c_smbus_add_pec(struct i2c_msg *msg)
-{
-	msg->buf[msg->len] = i2c_smbus_msg_pec(0, msg);
-	msg->len++;
-}
-
-/* Return <0 on CRC error
-   If there was a write before this read (most cases) we need to take the
-   partial CRC from the write part into account.
-   Note that this function does modify the message (we need to decrease the
-   message length to hide the CRC byte from the caller). */
-static int i2c_smbus_check_pec(u8 cpec, struct i2c_msg *msg)
-{
-	u8 rpec = msg->buf[--msg->len];
-	cpec = i2c_smbus_msg_pec(cpec, msg);
-
-	if (rpec != cpec) {
-		pr_debug("Bad PEC 0x%02x vs. 0x%02x\n",
-			rpec, cpec);
-		return -EBADMSG;
-	}
-	return 0;
-}
-
-/**
- * i2c_smbus_read_byte - SMBus "receive byte" protocol
- * @client: Handle to slave device
- *
- * This executes the SMBus "receive byte" protocol, returning negative errno
- * else the byte received from the device.
- */
-s32 i2c_smbus_read_byte(const struct i2c_client *client)
-{
-	union i2c_smbus_data data;
-	int status;
-
-	status = i2c_smbus_xfer(client->adapter, client->addr, client->flags,
-				I2C_SMBUS_READ, 0,
-				I2C_SMBUS_BYTE, &data);
-	return (status < 0) ? status : data.byte;
-}
-EXPORT_SYMBOL(i2c_smbus_read_byte);
-
-/**
- * i2c_smbus_write_byte - SMBus "send byte" protocol
- * @client: Handle to slave device
- * @value: Byte to be sent
- *
- * This executes the SMBus "send byte" protocol, returning negative errno
- * else zero on success.
- */
-s32 i2c_smbus_write_byte(const struct i2c_client *client, u8 value)
-{
-	return i2c_smbus_xfer(client->adapter, client->addr, client->flags,
-	                      I2C_SMBUS_WRITE, value, I2C_SMBUS_BYTE, NULL);
-}
-EXPORT_SYMBOL(i2c_smbus_write_byte);
-
-/**
- * i2c_smbus_read_byte_data - SMBus "read byte" protocol
- * @client: Handle to slave device
- * @command: Byte interpreted by slave
- *
- * This executes the SMBus "read byte" protocol, returning negative errno
- * else a data byte received from the device.
- */
-s32 i2c_smbus_read_byte_data(const struct i2c_client *client, u8 command)
-{
-	union i2c_smbus_data data;
-	int status;
-
-	status = i2c_smbus_xfer(client->adapter, client->addr, client->flags,
-				I2C_SMBUS_READ, command,
-				I2C_SMBUS_BYTE_DATA, &data);
-	return (status < 0) ? status : data.byte;
-}
-EXPORT_SYMBOL(i2c_smbus_read_byte_data);
-
-/**
- * i2c_smbus_write_byte_data - SMBus "write byte" protocol
- * @client: Handle to slave device
- * @command: Byte interpreted by slave
- * @value: Byte being written
- *
- * This executes the SMBus "write byte" protocol, returning negative errno
- * else zero on success.
- */
-s32 i2c_smbus_write_byte_data(const struct i2c_client *client, u8 command,
-			      u8 value)
-{
-	union i2c_smbus_data data;
-	data.byte = value;
-	return i2c_smbus_xfer(client->adapter, client->addr, client->flags,
-			      I2C_SMBUS_WRITE, command,
-			      I2C_SMBUS_BYTE_DATA, &data);
-}
-EXPORT_SYMBOL(i2c_smbus_write_byte_data);
-
-/**
- * i2c_smbus_read_word_data - SMBus "read word" protocol
- * @client: Handle to slave device
- * @command: Byte interpreted by slave
- *
- * This executes the SMBus "read word" protocol, returning negative errno
- * else a 16-bit unsigned "word" received from the device.
- */
-s32 i2c_smbus_read_word_data(const struct i2c_client *client, u8 command)
-{
-	union i2c_smbus_data data;
-	int status;
-
-	status = i2c_smbus_xfer(client->adapter, client->addr, client->flags,
-				I2C_SMBUS_READ, command,
-				I2C_SMBUS_WORD_DATA, &data);
-	return (status < 0) ? status : data.word;
-}
-EXPORT_SYMBOL(i2c_smbus_read_word_data);
-
-/**
- * i2c_smbus_write_word_data - SMBus "write word" protocol
- * @client: Handle to slave device
- * @command: Byte interpreted by slave
- * @value: 16-bit "word" being written
- *
- * This executes the SMBus "write word" protocol, returning negative errno
- * else zero on success.
- */
-s32 i2c_smbus_write_word_data(const struct i2c_client *client, u8 command,
-			      u16 value)
-{
-	union i2c_smbus_data data;
-	data.word = value;
-	return i2c_smbus_xfer(client->adapter, client->addr, client->flags,
-			      I2C_SMBUS_WRITE, command,
-			      I2C_SMBUS_WORD_DATA, &data);
-}
-EXPORT_SYMBOL(i2c_smbus_write_word_data);
-
-/**
- * i2c_smbus_read_block_data - SMBus "block read" protocol
- * @client: Handle to slave device
- * @command: Byte interpreted by slave
- * @values: Byte array into which data will be read; big enough to hold
- *	the data returned by the slave.  SMBus allows at most 32 bytes.
- *
- * This executes the SMBus "block read" protocol, returning negative errno
- * else the number of data bytes in the slave's response.
- *
- * Note that using this function requires that the client's adapter support
- * the I2C_FUNC_SMBUS_READ_BLOCK_DATA functionality.  Not all adapter drivers
- * support this; its emulation through I2C messaging relies on a specific
- * mechanism (I2C_M_RECV_LEN) which may not be implemented.
- */
-s32 i2c_smbus_read_block_data(const struct i2c_client *client, u8 command,
-			      u8 *values)
-{
-	union i2c_smbus_data data;
-	int status;
-
-	status = i2c_smbus_xfer(client->adapter, client->addr, client->flags,
-				I2C_SMBUS_READ, command,
-				I2C_SMBUS_BLOCK_DATA, &data);
-	if (status)
-		return status;
-
-	memcpy(values, &data.block[1], data.block[0]);
-	return data.block[0];
-}
-EXPORT_SYMBOL(i2c_smbus_read_block_data);
-
-/**
- * i2c_smbus_write_block_data - SMBus "block write" protocol
- * @client: Handle to slave device
- * @command: Byte interpreted by slave
- * @length: Size of data block; SMBus allows at most 32 bytes
- * @values: Byte array which will be written.
- *
- * This executes the SMBus "block write" protocol, returning negative errno
- * else zero on success.
- */
-s32 i2c_smbus_write_block_data(const struct i2c_client *client, u8 command,
-			       u8 length, const u8 *values)
-{
-	union i2c_smbus_data data;
-
-	if (length > I2C_SMBUS_BLOCK_MAX)
-		length = I2C_SMBUS_BLOCK_MAX;
-	data.block[0] = length;
-	memcpy(&data.block[1], values, length);
-	return i2c_smbus_xfer(client->adapter, client->addr, client->flags,
-			      I2C_SMBUS_WRITE, command,
-			      I2C_SMBUS_BLOCK_DATA, &data);
-}
-EXPORT_SYMBOL(i2c_smbus_write_block_data);
-
-/* Returns the number of read bytes */
-s32 i2c_smbus_read_i2c_block_data(const struct i2c_client *client, u8 command,
-				  u8 length, u8 *values)
-{
-	union i2c_smbus_data data;
-	int status;
-
-	if (length > I2C_SMBUS_BLOCK_MAX)
-		length = I2C_SMBUS_BLOCK_MAX;
-	data.block[0] = length;
-	status = i2c_smbus_xfer(client->adapter, client->addr, client->flags,
-				I2C_SMBUS_READ, command,
-				I2C_SMBUS_I2C_BLOCK_DATA, &data);
-	if (status < 0)
-		return status;
-
-	memcpy(values, &data.block[1], data.block[0]);
-	return data.block[0];
-}
-EXPORT_SYMBOL(i2c_smbus_read_i2c_block_data);
-
-s32 i2c_smbus_write_i2c_block_data(const struct i2c_client *client, u8 command,
-				   u8 length, const u8 *values)
-{
-	union i2c_smbus_data data;
-
-	if (length > I2C_SMBUS_BLOCK_MAX)
-		length = I2C_SMBUS_BLOCK_MAX;
-	data.block[0] = length;
-	memcpy(data.block + 1, values, length);
-	return i2c_smbus_xfer(client->adapter, client->addr, client->flags,
-			      I2C_SMBUS_WRITE, command,
-			      I2C_SMBUS_I2C_BLOCK_DATA, &data);
-}
-EXPORT_SYMBOL(i2c_smbus_write_i2c_block_data);
-
-/* Simulate a SMBus command using the i2c protocol
-   No checking of parameters is done!  */
-static s32 i2c_smbus_xfer_emulated(struct i2c_adapter *adapter, u16 addr,
-				   unsigned short flags,
-				   char read_write, u8 command, int size,
-				   union i2c_smbus_data *data)
-{
-	/* So we need to generate a series of msgs. In the case of writing, we
-	  need to use only one message; when reading, we need two. We initialize
-	  most things with sane defaults, to keep the code below somewhat
-	  simpler. */
-	unsigned char msgbuf0[I2C_SMBUS_BLOCK_MAX+3];
-	unsigned char msgbuf1[I2C_SMBUS_BLOCK_MAX+2];
-	int num = read_write == I2C_SMBUS_READ ? 2 : 1;
-	int i;
-	u8 partial_pec = 0;
-	int status;
-	struct i2c_msg msg[2] = {
-		{
-			.addr = addr,
-			.flags = flags,
-			.len = 1,
-			.buf = msgbuf0,
-		}, {
-			.addr = addr,
-			.flags = flags | I2C_M_RD,
-			.len = 0,
-			.buf = msgbuf1,
-		},
-	};
-
-	msgbuf0[0] = command;
-	switch (size) {
-	case I2C_SMBUS_QUICK:
-		msg[0].len = 0;
-		/* Special case: The read/write field is used as data */
-		msg[0].flags = flags | (read_write == I2C_SMBUS_READ ?
-					I2C_M_RD : 0);
-		num = 1;
-		break;
-	case I2C_SMBUS_BYTE:
-		if (read_write == I2C_SMBUS_READ) {
-			/* Special case: only a read! */
-			msg[0].flags = I2C_M_RD | flags;
-			num = 1;
-		}
-		break;
-	case I2C_SMBUS_BYTE_DATA:
-		if (read_write == I2C_SMBUS_READ)
-			msg[1].len = 1;
-		else {
-			msg[0].len = 2;
-			msgbuf0[1] = data->byte;
-		}
-		break;
-	case I2C_SMBUS_WORD_DATA:
-		if (read_write == I2C_SMBUS_READ)
-			msg[1].len = 2;
-		else {
-			msg[0].len = 3;
-			msgbuf0[1] = data->word & 0xff;
-			msgbuf0[2] = data->word >> 8;
-		}
-		break;
-	case I2C_SMBUS_PROC_CALL:
-		num = 2; /* Special case */
-		read_write = I2C_SMBUS_READ;
-		msg[0].len = 3;
-		msg[1].len = 2;
-		msgbuf0[1] = data->word & 0xff;
-		msgbuf0[2] = data->word >> 8;
-		break;
-	case I2C_SMBUS_BLOCK_DATA:
-		if (read_write == I2C_SMBUS_READ) {
-			msg[1].flags |= I2C_M_RECV_LEN;
-			msg[1].len = 1; /* block length will be added by
-					   the underlying bus driver */
-		} else {
-			msg[0].len = data->block[0] + 2;
-			if (msg[0].len > I2C_SMBUS_BLOCK_MAX + 2) {
-				dev_err(&adapter->dev,
-					"Invalid block write size %d\n",
-					data->block[0]);
-				return -EINVAL;
-			}
-			for (i = 1; i < msg[0].len; i++)
-				msgbuf0[i] = data->block[i-1];
-		}
-		break;
-	case I2C_SMBUS_BLOCK_PROC_CALL:
-		num = 2; /* Another special case */
-		read_write = I2C_SMBUS_READ;
-		if (data->block[0] > I2C_SMBUS_BLOCK_MAX) {
-			dev_err(&adapter->dev,
-				"Invalid block write size %d\n",
-				data->block[0]);
-			return -EINVAL;
-		}
-		msg[0].len = data->block[0] + 2;
-		for (i = 1; i < msg[0].len; i++)
-			msgbuf0[i] = data->block[i-1];
-		msg[1].flags |= I2C_M_RECV_LEN;
-		msg[1].len = 1; /* block length will be added by
-				   the underlying bus driver */
-		break;
-	case I2C_SMBUS_I2C_BLOCK_DATA:
-		if (read_write == I2C_SMBUS_READ) {
-			msg[1].len = data->block[0];
-		} else {
-			msg[0].len = data->block[0] + 1;
-			if (msg[0].len > I2C_SMBUS_BLOCK_MAX + 1) {
-				dev_err(&adapter->dev,
-					"Invalid block write size %d\n",
-					data->block[0]);
-				return -EINVAL;
-			}
-			for (i = 1; i <= data->block[0]; i++)
-				msgbuf0[i] = data->block[i];
-		}
-		break;
-	default:
-		dev_err(&adapter->dev, "Unsupported transaction %d\n", size);
-		return -EOPNOTSUPP;
-	}
-
-	i = ((flags & I2C_CLIENT_PEC) && size != I2C_SMBUS_QUICK
-				      && size != I2C_SMBUS_I2C_BLOCK_DATA);
-	if (i) {
-		/* Compute PEC if first message is a write */
-		if (!(msg[0].flags & I2C_M_RD)) {
-			if (num == 1) /* Write only */
-				i2c_smbus_add_pec(&msg[0]);
-			else /* Write followed by read */
-				partial_pec = i2c_smbus_msg_pec(0, &msg[0]);
-		}
-		/* Ask for PEC if last message is a read */
-		if (msg[num-1].flags & I2C_M_RD)
-			msg[num-1].len++;
-	}
-
-	status = i2c_transfer(adapter, msg, num);
-	if (status < 0)
-		return status;
-
-	/* Check PEC if last message is a read */
-	if (i && (msg[num-1].flags & I2C_M_RD)) {
-		status = i2c_smbus_check_pec(partial_pec, &msg[num-1]);
-		if (status < 0)
-			return status;
-	}
-
-	if (read_write == I2C_SMBUS_READ)
-		switch (size) {
-		case I2C_SMBUS_BYTE:
-			data->byte = msgbuf0[0];
-			break;
-		case I2C_SMBUS_BYTE_DATA:
-			data->byte = msgbuf1[0];
-			break;
-		case I2C_SMBUS_WORD_DATA:
-		case I2C_SMBUS_PROC_CALL:
-			data->word = msgbuf1[0] | (msgbuf1[1] << 8);
-			break;
-		case I2C_SMBUS_I2C_BLOCK_DATA:
-			for (i = 0; i < data->block[0]; i++)
-				data->block[i+1] = msgbuf1[i];
-			break;
-		case I2C_SMBUS_BLOCK_DATA:
-		case I2C_SMBUS_BLOCK_PROC_CALL:
-			for (i = 0; i < msgbuf1[0] + 1; i++)
-				data->block[i] = msgbuf1[i];
-			break;
-		}
-	return 0;
-}
-
-/**
- * i2c_smbus_xfer - execute SMBus protocol operations
- * @adapter: Handle to I2C bus
- * @addr: Address of SMBus slave on that bus
- * @flags: I2C_CLIENT_* flags (usually zero or I2C_CLIENT_PEC)
- * @read_write: I2C_SMBUS_READ or I2C_SMBUS_WRITE
- * @command: Byte interpreted by slave, for protocols which use such bytes
- * @protocol: SMBus protocol operation to execute, such as I2C_SMBUS_PROC_CALL
- * @data: Data to be read or written
- *
- * This executes an SMBus protocol operation, and returns a negative
- * errno code else zero on success.
- */
-s32 i2c_smbus_xfer(struct i2c_adapter *adapter, u16 addr, unsigned short flags,
-		   char read_write, u8 command, int protocol,
-		   union i2c_smbus_data *data)
-{
-	unsigned long orig_jiffies;
-	int try;
-	s32 res;
-
-	/* If enabled, the following two tracepoints are conditional on
-	 * read_write and protocol.
-	 */
-	trace_smbus_write(adapter, addr, flags, read_write,
-			  command, protocol, data);
-	trace_smbus_read(adapter, addr, flags, read_write,
-			 command, protocol);
-
-	flags &= I2C_M_TEN | I2C_CLIENT_PEC | I2C_CLIENT_SCCB;
-
-	if (adapter->algo->smbus_xfer) {
-		i2c_lock_bus(adapter, I2C_LOCK_SEGMENT);
-
-		/* Retry automatically on arbitration loss */
-		orig_jiffies = jiffies;
-		for (res = 0, try = 0; try <= adapter->retries; try++) {
-			res = adapter->algo->smbus_xfer(adapter, addr, flags,
-							read_write, command,
-							protocol, data);
-			if (res != -EAGAIN)
-				break;
-			if (time_after(jiffies,
-				       orig_jiffies + adapter->timeout))
-				break;
-		}
-		i2c_unlock_bus(adapter, I2C_LOCK_SEGMENT);
-
-		if (res != -EOPNOTSUPP || !adapter->algo->master_xfer)
-			goto trace;
-		/*
-		 * Fall back to i2c_smbus_xfer_emulated if the adapter doesn't
-		 * implement native support for the SMBus operation.
-		 */
-	}
-
-	res = i2c_smbus_xfer_emulated(adapter, addr, flags, read_write,
-				      command, protocol, data);
-
-trace:
-	/* If enabled, the reply tracepoint is conditional on read_write. */
-	trace_smbus_reply(adapter, addr, flags, read_write,
-			  command, protocol, data);
-	trace_smbus_result(adapter, addr, flags, read_write,
-			   command, protocol, res);
-
-	return res;
-}
-EXPORT_SYMBOL(i2c_smbus_xfer);
-
-/**
- * i2c_smbus_read_i2c_block_data_or_emulated - read block or emulate
- * @client: Handle to slave device
- * @command: Byte interpreted by slave
- * @length: Size of data block; SMBus allows at most I2C_SMBUS_BLOCK_MAX bytes
- * @values: Byte array into which data will be read; big enough to hold
- *	the data returned by the slave.  SMBus allows at most
- *	I2C_SMBUS_BLOCK_MAX bytes.
- *
- * This executes the SMBus "block read" protocol if supported by the adapter.
- * If block read is not supported, it emulates it using either word or byte
- * read protocols depending on availability.
- *
- * The addresses of the I2C slave device that are accessed with this function
- * must be mapped to a linear region, so that a block read will have the same
- * effect as a byte read. Before using this function you must double-check
- * if the I2C slave does support exchanging a block transfer with a byte
- * transfer.
- */
-s32 i2c_smbus_read_i2c_block_data_or_emulated(const struct i2c_client *client,
-					      u8 command, u8 length, u8 *values)
-{
-	u8 i = 0;
-	int status;
-
-	if (length > I2C_SMBUS_BLOCK_MAX)
-		length = I2C_SMBUS_BLOCK_MAX;
-
-	if (i2c_check_functionality(client->adapter, I2C_FUNC_SMBUS_READ_I2C_BLOCK))
-		return i2c_smbus_read_i2c_block_data(client, command, length, values);
-
-	if (!i2c_check_functionality(client->adapter, I2C_FUNC_SMBUS_READ_BYTE_DATA))
-		return -EOPNOTSUPP;
-
-	if (i2c_check_functionality(client->adapter, I2C_FUNC_SMBUS_READ_WORD_DATA)) {
-		while ((i + 2) <= length) {
-			status = i2c_smbus_read_word_data(client, command + i);
-			if (status < 0)
-				return status;
-			values[i] = status & 0xff;
-			values[i + 1] = status >> 8;
-			i += 2;
-		}
-	}
-
-	while (i < length) {
-		status = i2c_smbus_read_byte_data(client, command + i);
-		if (status < 0)
-			return status;
-		values[i] = status;
-		i++;
-	}
-
-	return i;
-}
-EXPORT_SYMBOL(i2c_smbus_read_i2c_block_data_or_emulated);
-
-#if IS_ENABLED(CONFIG_I2C_SLAVE)
-int i2c_slave_register(struct i2c_client *client, i2c_slave_cb_t slave_cb)
-{
-	int ret;
-
-	if (!client || !slave_cb) {
-		WARN(1, "insufficient data\n");
-		return -EINVAL;
-	}
-
-	if (!(client->flags & I2C_CLIENT_SLAVE))
-		dev_warn(&client->dev, "%s: client slave flag not set. You might see address collisions\n",
-			 __func__);
-
-	if (!(client->flags & I2C_CLIENT_TEN)) {
-		/* Enforce stricter address checking */
-		ret = i2c_check_7bit_addr_validity_strict(client->addr);
-		if (ret) {
-			dev_err(&client->dev, "%s: invalid address\n", __func__);
-			return ret;
-		}
-	}
-
-	if (!client->adapter->algo->reg_slave) {
-		dev_err(&client->dev, "%s: not supported by adapter\n", __func__);
-		return -EOPNOTSUPP;
-	}
-
-	client->slave_cb = slave_cb;
-
-	i2c_lock_adapter(client->adapter);
-	ret = client->adapter->algo->reg_slave(client);
-	i2c_unlock_adapter(client->adapter);
-
-	if (ret) {
-		client->slave_cb = NULL;
-		dev_err(&client->dev, "%s: adapter returned error %d\n", __func__, ret);
-	}
-
-	return ret;
-}
-EXPORT_SYMBOL_GPL(i2c_slave_register);
-
-int i2c_slave_unregister(struct i2c_client *client)
-{
-	int ret;
-
-	if (!client->adapter->algo->unreg_slave) {
-		dev_err(&client->dev, "%s: not supported by adapter\n", __func__);
-		return -EOPNOTSUPP;
-	}
-
-	i2c_lock_adapter(client->adapter);
-	ret = client->adapter->algo->unreg_slave(client);
-	i2c_unlock_adapter(client->adapter);
-
-	if (ret == 0)
-		client->slave_cb = NULL;
-	else
-		dev_err(&client->dev, "%s: adapter returned error %d\n", __func__, ret);
-
-	return ret;
-}
-EXPORT_SYMBOL_GPL(i2c_slave_unregister);
-
-/**
- * i2c_detect_slave_mode - detect operation mode
- * @dev: The device owning the bus
- *
- * This checks the device nodes for an I2C slave by checking the address
- * used in the reg property. If the address match the I2C_OWN_SLAVE_ADDRESS
- * flag this means the device is configured to act as a I2C slave and it will
- * be listening at that address.
- *
- * Returns true if an I2C own slave address is detected, otherwise returns
- * false.
- */
-bool i2c_detect_slave_mode(struct device *dev)
-{
-	if (IS_BUILTIN(CONFIG_OF) && dev->of_node) {
-		struct device_node *child;
-		u32 reg;
-
-		for_each_child_of_node(dev->of_node, child) {
-			of_property_read_u32(child, "reg", &reg);
-			if (reg & I2C_OWN_SLAVE_ADDRESS) {
-				of_node_put(child);
-				return true;
-			}
-		}
-	} else if (IS_BUILTIN(CONFIG_ACPI) && ACPI_HANDLE(dev)) {
-		dev_dbg(dev, "ACPI slave is not supported yet\n");
-	}
-	return false;
-}
-EXPORT_SYMBOL_GPL(i2c_detect_slave_mode);
-
-#endif
-
 MODULE_AUTHOR("Simon G. Vogl <simon@tk.uni-linz.ac.at>");
 MODULE_DESCRIPTION("I2C-Bus main module");
 MODULE_LICENSE("GPL");
diff --git a/drivers/i2c/i2c-core-of.c b/drivers/i2c/i2c-core-of.c
new file mode 100644
index 000000000000..ccf82fdbcd8e
--- /dev/null
+++ b/drivers/i2c/i2c-core-of.c
@@ -0,0 +1,276 @@
+/*
+ * Linux I2C core OF support code
+ *
+ * Copyright (C) 2008 Jochen Friedrich <jochen@scram.de>
+ * based on a previous patch from Jon Smirl <jonsmirl@gmail.com>
+ *
+ * Copyright (C) 2013 Wolfram Sang <wsa@the-dreams.de>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the Free
+ * Software Foundation; either version 2 of the License, or (at your option)
+ * any later version.
+ */
+
+#include <dt-bindings/i2c/i2c.h>
+#include <linux/device.h>
+#include <linux/err.h>
+#include <linux/i2c.h>
+#include <linux/module.h>
+#include <linux/of.h>
+#include <linux/of_device.h>
+
+#include "i2c-core.h"
+
+static struct i2c_client *of_i2c_register_device(struct i2c_adapter *adap,
+						 struct device_node *node)
+{
+	struct i2c_client *result;
+	struct i2c_board_info info = {};
+	struct dev_archdata dev_ad = {};
+	const __be32 *addr_be;
+	u32 addr;
+	int len;
+
+	dev_dbg(&adap->dev, "of_i2c: register %s\n", node->full_name);
+
+	if (of_modalias_node(node, info.type, sizeof(info.type)) < 0) {
+		dev_err(&adap->dev, "of_i2c: modalias failure on %s\n",
+			node->full_name);
+		return ERR_PTR(-EINVAL);
+	}
+
+	addr_be = of_get_property(node, "reg", &len);
+	if (!addr_be || (len < sizeof(*addr_be))) {
+		dev_err(&adap->dev, "of_i2c: invalid reg on %s\n",
+			node->full_name);
+		return ERR_PTR(-EINVAL);
+	}
+
+	addr = be32_to_cpup(addr_be);
+	if (addr & I2C_TEN_BIT_ADDRESS) {
+		addr &= ~I2C_TEN_BIT_ADDRESS;
+		info.flags |= I2C_CLIENT_TEN;
+	}
+
+	if (addr & I2C_OWN_SLAVE_ADDRESS) {
+		addr &= ~I2C_OWN_SLAVE_ADDRESS;
+		info.flags |= I2C_CLIENT_SLAVE;
+	}
+
+	if (i2c_check_addr_validity(addr, info.flags)) {
+		dev_err(&adap->dev, "of_i2c: invalid addr=%x on %s\n",
+			addr, node->full_name);
+		return ERR_PTR(-EINVAL);
+	}
+
+	info.addr = addr;
+	info.of_node = of_node_get(node);
+	info.archdata = &dev_ad;
+
+	if (of_property_read_bool(node, "host-notify"))
+		info.flags |= I2C_CLIENT_HOST_NOTIFY;
+
+	if (of_get_property(node, "wakeup-source", NULL))
+		info.flags |= I2C_CLIENT_WAKE;
+
+	result = i2c_new_device(adap, &info);
+	if (result == NULL) {
+		dev_err(&adap->dev, "of_i2c: Failure registering %s\n",
+			node->full_name);
+		of_node_put(node);
+		return ERR_PTR(-EINVAL);
+	}
+	return result;
+}
+
+void of_i2c_register_devices(struct i2c_adapter *adap)
+{
+	struct device_node *bus, *node;
+	struct i2c_client *client;
+
+	/* Only register child devices if the adapter has a node pointer set */
+	if (!adap->dev.of_node)
+		return;
+
+	dev_dbg(&adap->dev, "of_i2c: walking child nodes\n");
+
+	bus = of_get_child_by_name(adap->dev.of_node, "i2c-bus");
+	if (!bus)
+		bus = of_node_get(adap->dev.of_node);
+
+	for_each_available_child_of_node(bus, node) {
+		if (of_node_test_and_set_flag(node, OF_POPULATED))
+			continue;
+
+		client = of_i2c_register_device(adap, node);
+		if (IS_ERR(client)) {
+			dev_warn(&adap->dev,
+				 "Failed to create I2C device for %s\n",
+				 node->full_name);
+			of_node_clear_flag(node, OF_POPULATED);
+		}
+	}
+
+	of_node_put(bus);
+}
+
+static int of_dev_node_match(struct device *dev, void *data)
+{
+	return dev->of_node == data;
+}
+
+/* must call put_device() when done with returned i2c_client device */
+struct i2c_client *of_find_i2c_device_by_node(struct device_node *node)
+{
+	struct device *dev;
+	struct i2c_client *client;
+
+	dev = bus_find_device(&i2c_bus_type, NULL, node, of_dev_node_match);
+	if (!dev)
+		return NULL;
+
+	client = i2c_verify_client(dev);
+	if (!client)
+		put_device(dev);
+
+	return client;
+}
+EXPORT_SYMBOL(of_find_i2c_device_by_node);
+
+/* must call put_device() when done with returned i2c_adapter device */
+struct i2c_adapter *of_find_i2c_adapter_by_node(struct device_node *node)
+{
+	struct device *dev;
+	struct i2c_adapter *adapter;
+
+	dev = bus_find_device(&i2c_bus_type, NULL, node, of_dev_node_match);
+	if (!dev)
+		return NULL;
+
+	adapter = i2c_verify_adapter(dev);
+	if (!adapter)
+		put_device(dev);
+
+	return adapter;
+}
+EXPORT_SYMBOL(of_find_i2c_adapter_by_node);
+
+/* must call i2c_put_adapter() when done with returned i2c_adapter device */
+struct i2c_adapter *of_get_i2c_adapter_by_node(struct device_node *node)
+{
+	struct i2c_adapter *adapter;
+
+	adapter = of_find_i2c_adapter_by_node(node);
+	if (!adapter)
+		return NULL;
+
+	if (!try_module_get(adapter->owner)) {
+		put_device(&adapter->dev);
+		adapter = NULL;
+	}
+
+	return adapter;
+}
+EXPORT_SYMBOL(of_get_i2c_adapter_by_node);
+
+static const struct of_device_id*
+i2c_of_match_device_sysfs(const struct of_device_id *matches,
+				  struct i2c_client *client)
+{
+	const char *name;
+
+	for (; matches->compatible[0]; matches++) {
+		/*
+		 * Adding devices through the i2c sysfs interface provides us
+		 * a string to match which may be compatible with the device
+		 * tree compatible strings, however with no actual of_node the
+		 * of_match_device() will not match
+		 */
+		if (sysfs_streq(client->name, matches->compatible))
+			return matches;
+
+		name = strchr(matches->compatible, ',');
+		if (!name)
+			name = matches->compatible;
+		else
+			name++;
+
+		if (sysfs_streq(client->name, name))
+			return matches;
+	}
+
+	return NULL;
+}
+
+const struct of_device_id
+*i2c_of_match_device(const struct of_device_id *matches,
+		     struct i2c_client *client)
+{
+	const struct of_device_id *match;
+
+	if (!(client && matches))
+		return NULL;
+
+	match = of_match_device(matches, &client->dev);
+	if (match)
+		return match;
+
+	return i2c_of_match_device_sysfs(matches, client);
+}
+EXPORT_SYMBOL_GPL(i2c_of_match_device);
+
+#if IS_ENABLED(CONFIG_OF_DYNAMIC)
+static int of_i2c_notify(struct notifier_block *nb, unsigned long action,
+			 void *arg)
+{
+	struct of_reconfig_data *rd = arg;
+	struct i2c_adapter *adap;
+	struct i2c_client *client;
+
+	switch (of_reconfig_get_state_change(action, rd)) {
+	case OF_RECONFIG_CHANGE_ADD:
+		adap = of_find_i2c_adapter_by_node(rd->dn->parent);
+		if (adap == NULL)
+			return NOTIFY_OK;	/* not for us */
+
+		if (of_node_test_and_set_flag(rd->dn, OF_POPULATED)) {
+			put_device(&adap->dev);
+			return NOTIFY_OK;
+		}
+
+		client = of_i2c_register_device(adap, rd->dn);
+		put_device(&adap->dev);
+
+		if (IS_ERR(client)) {
+			dev_err(&adap->dev, "failed to create client for '%s'\n",
+				 rd->dn->full_name);
+			of_node_clear_flag(rd->dn, OF_POPULATED);
+			return notifier_from_errno(PTR_ERR(client));
+		}
+		break;
+	case OF_RECONFIG_CHANGE_REMOVE:
+		/* already depopulated? */
+		if (!of_node_check_flag(rd->dn, OF_POPULATED))
+			return NOTIFY_OK;
+
+		/* find our device by node */
+		client = of_find_i2c_device_by_node(rd->dn);
+		if (client == NULL)
+			return NOTIFY_OK;	/* no? not meant for us */
+
+		/* unregister takes one ref away */
+		i2c_unregister_device(client);
+
+		/* and put the reference of the find */
+		put_device(&client->dev);
+		break;
+	}
+
+	return NOTIFY_OK;
+}
+
+struct notifier_block i2c_of_notifier = {
+	.notifier_call = of_i2c_notify,
+};
+#endif /* CONFIG_OF_DYNAMIC */
diff --git a/drivers/i2c/i2c-core-slave.c b/drivers/i2c/i2c-core-slave.c
new file mode 100644
index 000000000000..4a78c65e9971
--- /dev/null
+++ b/drivers/i2c/i2c-core-slave.c
@@ -0,0 +1,115 @@
+/*
+ * Linux I2C core slave support code
+ *
+ * Copyright (C) 2014 by Wolfram Sang <wsa@sang-engineering.com>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the Free
+ * Software Foundation; either version 2 of the License, or (at your option)
+ * any later version.
+ */
+
+#include <dt-bindings/i2c/i2c.h>
+#include <linux/acpi.h>
+#include <linux/device.h>
+#include <linux/err.h>
+#include <linux/i2c.h>
+#include <linux/of.h>
+
+#include "i2c-core.h"
+
+int i2c_slave_register(struct i2c_client *client, i2c_slave_cb_t slave_cb)
+{
+	int ret;
+
+	if (!client || !slave_cb) {
+		WARN(1, "insufficient data\n");
+		return -EINVAL;
+	}
+
+	if (!(client->flags & I2C_CLIENT_SLAVE))
+		dev_warn(&client->dev, "%s: client slave flag not set. You might see address collisions\n",
+			 __func__);
+
+	if (!(client->flags & I2C_CLIENT_TEN)) {
+		/* Enforce stricter address checking */
+		ret = i2c_check_7bit_addr_validity_strict(client->addr);
+		if (ret) {
+			dev_err(&client->dev, "%s: invalid address\n", __func__);
+			return ret;
+		}
+	}
+
+	if (!client->adapter->algo->reg_slave) {
+		dev_err(&client->dev, "%s: not supported by adapter\n", __func__);
+		return -EOPNOTSUPP;
+	}
+
+	client->slave_cb = slave_cb;
+
+	i2c_lock_adapter(client->adapter);
+	ret = client->adapter->algo->reg_slave(client);
+	i2c_unlock_adapter(client->adapter);
+
+	if (ret) {
+		client->slave_cb = NULL;
+		dev_err(&client->dev, "%s: adapter returned error %d\n", __func__, ret);
+	}
+
+	return ret;
+}
+EXPORT_SYMBOL_GPL(i2c_slave_register);
+
+int i2c_slave_unregister(struct i2c_client *client)
+{
+	int ret;
+
+	if (!client->adapter->algo->unreg_slave) {
+		dev_err(&client->dev, "%s: not supported by adapter\n", __func__);
+		return -EOPNOTSUPP;
+	}
+
+	i2c_lock_adapter(client->adapter);
+	ret = client->adapter->algo->unreg_slave(client);
+	i2c_unlock_adapter(client->adapter);
+
+	if (ret == 0)
+		client->slave_cb = NULL;
+	else
+		dev_err(&client->dev, "%s: adapter returned error %d\n", __func__, ret);
+
+	return ret;
+}
+EXPORT_SYMBOL_GPL(i2c_slave_unregister);
+
+/**
+ * i2c_detect_slave_mode - detect operation mode
+ * @dev: The device owning the bus
+ *
+ * This checks the device nodes for an I2C slave by checking the address
+ * used in the reg property. If the address match the I2C_OWN_SLAVE_ADDRESS
+ * flag this means the device is configured to act as a I2C slave and it will
+ * be listening at that address.
+ *
+ * Returns true if an I2C own slave address is detected, otherwise returns
+ * false.
+ */
+bool i2c_detect_slave_mode(struct device *dev)
+{
+	if (IS_BUILTIN(CONFIG_OF) && dev->of_node) {
+		struct device_node *child;
+		u32 reg;
+
+		for_each_child_of_node(dev->of_node, child) {
+			of_property_read_u32(child, "reg", &reg);
+			if (reg & I2C_OWN_SLAVE_ADDRESS) {
+				of_node_put(child);
+				return true;
+			}
+		}
+	} else if (IS_BUILTIN(CONFIG_ACPI) && ACPI_HANDLE(dev)) {
+		dev_dbg(dev, "ACPI slave is not supported yet\n");
+	}
+	return false;
+}
+EXPORT_SYMBOL_GPL(i2c_detect_slave_mode);
diff --git a/drivers/i2c/i2c-core-smbus.c b/drivers/i2c/i2c-core-smbus.c
new file mode 100644
index 000000000000..10f00a82ec9d
--- /dev/null
+++ b/drivers/i2c/i2c-core-smbus.c
@@ -0,0 +1,594 @@
+/*
+ * Linux I2C core SMBus and SMBus emulation code
+ *
+ * This file contains the SMBus functions which are always included in the I2C
+ * core because they can be emulated via I2C. SMBus specific extensions
+ * (e.g. smbalert) are handled in a seperate i2c-smbus module.
+ *
+ * All SMBus-related things are written by Frodo Looijaard <frodol@dds.nl>
+ * SMBus 2.0 support by Mark Studebaker <mdsxyz123@yahoo.com> and
+ * Jean Delvare <jdelvare@suse.de>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the Free
+ * Software Foundation; either version 2 of the License, or (at your option)
+ * any later version.
+ */
+#include <linux/device.h>
+#include <linux/err.h>
+#include <linux/i2c.h>
+
+#define CREATE_TRACE_POINTS
+#include <trace/events/smbus.h>
+
+
+/* The SMBus parts */
+
+#define POLY    (0x1070U << 3)
+static u8 crc8(u16 data)
+{
+	int i;
+
+	for (i = 0; i < 8; i++) {
+		if (data & 0x8000)
+			data = data ^ POLY;
+		data = data << 1;
+	}
+	return (u8)(data >> 8);
+}
+
+/* Incremental CRC8 over count bytes in the array pointed to by p */
+static u8 i2c_smbus_pec(u8 crc, u8 *p, size_t count)
+{
+	int i;
+
+	for (i = 0; i < count; i++)
+		crc = crc8((crc ^ p[i]) << 8);
+	return crc;
+}
+
+/* Assume a 7-bit address, which is reasonable for SMBus */
+static u8 i2c_smbus_msg_pec(u8 pec, struct i2c_msg *msg)
+{
+	/* The address will be sent first */
+	u8 addr = i2c_8bit_addr_from_msg(msg);
+	pec = i2c_smbus_pec(pec, &addr, 1);
+
+	/* The data buffer follows */
+	return i2c_smbus_pec(pec, msg->buf, msg->len);
+}
+
+/* Used for write only transactions */
+static inline void i2c_smbus_add_pec(struct i2c_msg *msg)
+{
+	msg->buf[msg->len] = i2c_smbus_msg_pec(0, msg);
+	msg->len++;
+}
+
+/* Return <0 on CRC error
+   If there was a write before this read (most cases) we need to take the
+   partial CRC from the write part into account.
+   Note that this function does modify the message (we need to decrease the
+   message length to hide the CRC byte from the caller). */
+static int i2c_smbus_check_pec(u8 cpec, struct i2c_msg *msg)
+{
+	u8 rpec = msg->buf[--msg->len];
+	cpec = i2c_smbus_msg_pec(cpec, msg);
+
+	if (rpec != cpec) {
+		pr_debug("Bad PEC 0x%02x vs. 0x%02x\n",
+			rpec, cpec);
+		return -EBADMSG;
+	}
+	return 0;
+}
+
+/**
+ * i2c_smbus_read_byte - SMBus "receive byte" protocol
+ * @client: Handle to slave device
+ *
+ * This executes the SMBus "receive byte" protocol, returning negative errno
+ * else the byte received from the device.
+ */
+s32 i2c_smbus_read_byte(const struct i2c_client *client)
+{
+	union i2c_smbus_data data;
+	int status;
+
+	status = i2c_smbus_xfer(client->adapter, client->addr, client->flags,
+				I2C_SMBUS_READ, 0,
+				I2C_SMBUS_BYTE, &data);
+	return (status < 0) ? status : data.byte;
+}
+EXPORT_SYMBOL(i2c_smbus_read_byte);
+
+/**
+ * i2c_smbus_write_byte - SMBus "send byte" protocol
+ * @client: Handle to slave device
+ * @value: Byte to be sent
+ *
+ * This executes the SMBus "send byte" protocol, returning negative errno
+ * else zero on success.
+ */
+s32 i2c_smbus_write_byte(const struct i2c_client *client, u8 value)
+{
+	return i2c_smbus_xfer(client->adapter, client->addr, client->flags,
+	                      I2C_SMBUS_WRITE, value, I2C_SMBUS_BYTE, NULL);
+}
+EXPORT_SYMBOL(i2c_smbus_write_byte);
+
+/**
+ * i2c_smbus_read_byte_data - SMBus "read byte" protocol
+ * @client: Handle to slave device
+ * @command: Byte interpreted by slave
+ *
+ * This executes the SMBus "read byte" protocol, returning negative errno
+ * else a data byte received from the device.
+ */
+s32 i2c_smbus_read_byte_data(const struct i2c_client *client, u8 command)
+{
+	union i2c_smbus_data data;
+	int status;
+
+	status = i2c_smbus_xfer(client->adapter, client->addr, client->flags,
+				I2C_SMBUS_READ, command,
+				I2C_SMBUS_BYTE_DATA, &data);
+	return (status < 0) ? status : data.byte;
+}
+EXPORT_SYMBOL(i2c_smbus_read_byte_data);
+
+/**
+ * i2c_smbus_write_byte_data - SMBus "write byte" protocol
+ * @client: Handle to slave device
+ * @command: Byte interpreted by slave
+ * @value: Byte being written
+ *
+ * This executes the SMBus "write byte" protocol, returning negative errno
+ * else zero on success.
+ */
+s32 i2c_smbus_write_byte_data(const struct i2c_client *client, u8 command,
+			      u8 value)
+{
+	union i2c_smbus_data data;
+	data.byte = value;
+	return i2c_smbus_xfer(client->adapter, client->addr, client->flags,
+			      I2C_SMBUS_WRITE, command,
+			      I2C_SMBUS_BYTE_DATA, &data);
+}
+EXPORT_SYMBOL(i2c_smbus_write_byte_data);
+
+/**
+ * i2c_smbus_read_word_data - SMBus "read word" protocol
+ * @client: Handle to slave device
+ * @command: Byte interpreted by slave
+ *
+ * This executes the SMBus "read word" protocol, returning negative errno
+ * else a 16-bit unsigned "word" received from the device.
+ */
+s32 i2c_smbus_read_word_data(const struct i2c_client *client, u8 command)
+{
+	union i2c_smbus_data data;
+	int status;
+
+	status = i2c_smbus_xfer(client->adapter, client->addr, client->flags,
+				I2C_SMBUS_READ, command,
+				I2C_SMBUS_WORD_DATA, &data);
+	return (status < 0) ? status : data.word;
+}
+EXPORT_SYMBOL(i2c_smbus_read_word_data);
+
+/**
+ * i2c_smbus_write_word_data - SMBus "write word" protocol
+ * @client: Handle to slave device
+ * @command: Byte interpreted by slave
+ * @value: 16-bit "word" being written
+ *
+ * This executes the SMBus "write word" protocol, returning negative errno
+ * else zero on success.
+ */
+s32 i2c_smbus_write_word_data(const struct i2c_client *client, u8 command,
+			      u16 value)
+{
+	union i2c_smbus_data data;
+	data.word = value;
+	return i2c_smbus_xfer(client->adapter, client->addr, client->flags,
+			      I2C_SMBUS_WRITE, command,
+			      I2C_SMBUS_WORD_DATA, &data);
+}
+EXPORT_SYMBOL(i2c_smbus_write_word_data);
+
+/**
+ * i2c_smbus_read_block_data - SMBus "block read" protocol
+ * @client: Handle to slave device
+ * @command: Byte interpreted by slave
+ * @values: Byte array into which data will be read; big enough to hold
+ *	the data returned by the slave.  SMBus allows at most 32 bytes.
+ *
+ * This executes the SMBus "block read" protocol, returning negative errno
+ * else the number of data bytes in the slave's response.
+ *
+ * Note that using this function requires that the client's adapter support
+ * the I2C_FUNC_SMBUS_READ_BLOCK_DATA functionality.  Not all adapter drivers
+ * support this; its emulation through I2C messaging relies on a specific
+ * mechanism (I2C_M_RECV_LEN) which may not be implemented.
+ */
+s32 i2c_smbus_read_block_data(const struct i2c_client *client, u8 command,
+			      u8 *values)
+{
+	union i2c_smbus_data data;
+	int status;
+
+	status = i2c_smbus_xfer(client->adapter, client->addr, client->flags,
+				I2C_SMBUS_READ, command,
+				I2C_SMBUS_BLOCK_DATA, &data);
+	if (status)
+		return status;
+
+	memcpy(values, &data.block[1], data.block[0]);
+	return data.block[0];
+}
+EXPORT_SYMBOL(i2c_smbus_read_block_data);
+
+/**
+ * i2c_smbus_write_block_data - SMBus "block write" protocol
+ * @client: Handle to slave device
+ * @command: Byte interpreted by slave
+ * @length: Size of data block; SMBus allows at most 32 bytes
+ * @values: Byte array which will be written.
+ *
+ * This executes the SMBus "block write" protocol, returning negative errno
+ * else zero on success.
+ */
+s32 i2c_smbus_write_block_data(const struct i2c_client *client, u8 command,
+			       u8 length, const u8 *values)
+{
+	union i2c_smbus_data data;
+
+	if (length > I2C_SMBUS_BLOCK_MAX)
+		length = I2C_SMBUS_BLOCK_MAX;
+	data.block[0] = length;
+	memcpy(&data.block[1], values, length);
+	return i2c_smbus_xfer(client->adapter, client->addr, client->flags,
+			      I2C_SMBUS_WRITE, command,
+			      I2C_SMBUS_BLOCK_DATA, &data);
+}
+EXPORT_SYMBOL(i2c_smbus_write_block_data);
+
+/* Returns the number of read bytes */
+s32 i2c_smbus_read_i2c_block_data(const struct i2c_client *client, u8 command,
+				  u8 length, u8 *values)
+{
+	union i2c_smbus_data data;
+	int status;
+
+	if (length > I2C_SMBUS_BLOCK_MAX)
+		length = I2C_SMBUS_BLOCK_MAX;
+	data.block[0] = length;
+	status = i2c_smbus_xfer(client->adapter, client->addr, client->flags,
+				I2C_SMBUS_READ, command,
+				I2C_SMBUS_I2C_BLOCK_DATA, &data);
+	if (status < 0)
+		return status;
+
+	memcpy(values, &data.block[1], data.block[0]);
+	return data.block[0];
+}
+EXPORT_SYMBOL(i2c_smbus_read_i2c_block_data);
+
+s32 i2c_smbus_write_i2c_block_data(const struct i2c_client *client, u8 command,
+				   u8 length, const u8 *values)
+{
+	union i2c_smbus_data data;
+
+	if (length > I2C_SMBUS_BLOCK_MAX)
+		length = I2C_SMBUS_BLOCK_MAX;
+	data.block[0] = length;
+	memcpy(data.block + 1, values, length);
+	return i2c_smbus_xfer(client->adapter, client->addr, client->flags,
+			      I2C_SMBUS_WRITE, command,
+			      I2C_SMBUS_I2C_BLOCK_DATA, &data);
+}
+EXPORT_SYMBOL(i2c_smbus_write_i2c_block_data);
+
+/* Simulate a SMBus command using the i2c protocol
+   No checking of parameters is done!  */
+static s32 i2c_smbus_xfer_emulated(struct i2c_adapter *adapter, u16 addr,
+				   unsigned short flags,
+				   char read_write, u8 command, int size,
+				   union i2c_smbus_data *data)
+{
+	/* So we need to generate a series of msgs. In the case of writing, we
+	  need to use only one message; when reading, we need two. We initialize
+	  most things with sane defaults, to keep the code below somewhat
+	  simpler. */
+	unsigned char msgbuf0[I2C_SMBUS_BLOCK_MAX+3];
+	unsigned char msgbuf1[I2C_SMBUS_BLOCK_MAX+2];
+	int num = read_write == I2C_SMBUS_READ ? 2 : 1;
+	int i;
+	u8 partial_pec = 0;
+	int status;
+	struct i2c_msg msg[2] = {
+		{
+			.addr = addr,
+			.flags = flags,
+			.len = 1,
+			.buf = msgbuf0,
+		}, {
+			.addr = addr,
+			.flags = flags | I2C_M_RD,
+			.len = 0,
+			.buf = msgbuf1,
+		},
+	};
+
+	msgbuf0[0] = command;
+	switch (size) {
+	case I2C_SMBUS_QUICK:
+		msg[0].len = 0;
+		/* Special case: The read/write field is used as data */
+		msg[0].flags = flags | (read_write == I2C_SMBUS_READ ?
+					I2C_M_RD : 0);
+		num = 1;
+		break;
+	case I2C_SMBUS_BYTE:
+		if (read_write == I2C_SMBUS_READ) {
+			/* Special case: only a read! */
+			msg[0].flags = I2C_M_RD | flags;
+			num = 1;
+		}
+		break;
+	case I2C_SMBUS_BYTE_DATA:
+		if (read_write == I2C_SMBUS_READ)
+			msg[1].len = 1;
+		else {
+			msg[0].len = 2;
+			msgbuf0[1] = data->byte;
+		}
+		break;
+	case I2C_SMBUS_WORD_DATA:
+		if (read_write == I2C_SMBUS_READ)
+			msg[1].len = 2;
+		else {
+			msg[0].len = 3;
+			msgbuf0[1] = data->word & 0xff;
+			msgbuf0[2] = data->word >> 8;
+		}
+		break;
+	case I2C_SMBUS_PROC_CALL:
+		num = 2; /* Special case */
+		read_write = I2C_SMBUS_READ;
+		msg[0].len = 3;
+		msg[1].len = 2;
+		msgbuf0[1] = data->word & 0xff;
+		msgbuf0[2] = data->word >> 8;
+		break;
+	case I2C_SMBUS_BLOCK_DATA:
+		if (read_write == I2C_SMBUS_READ) {
+			msg[1].flags |= I2C_M_RECV_LEN;
+			msg[1].len = 1; /* block length will be added by
+					   the underlying bus driver */
+		} else {
+			msg[0].len = data->block[0] + 2;
+			if (msg[0].len > I2C_SMBUS_BLOCK_MAX + 2) {
+				dev_err(&adapter->dev,
+					"Invalid block write size %d\n",
+					data->block[0]);
+				return -EINVAL;
+			}
+			for (i = 1; i < msg[0].len; i++)
+				msgbuf0[i] = data->block[i-1];
+		}
+		break;
+	case I2C_SMBUS_BLOCK_PROC_CALL:
+		num = 2; /* Another special case */
+		read_write = I2C_SMBUS_READ;
+		if (data->block[0] > I2C_SMBUS_BLOCK_MAX) {
+			dev_err(&adapter->dev,
+				"Invalid block write size %d\n",
+				data->block[0]);
+			return -EINVAL;
+		}
+		msg[0].len = data->block[0] + 2;
+		for (i = 1; i < msg[0].len; i++)
+			msgbuf0[i] = data->block[i-1];
+		msg[1].flags |= I2C_M_RECV_LEN;
+		msg[1].len = 1; /* block length will be added by
+				   the underlying bus driver */
+		break;
+	case I2C_SMBUS_I2C_BLOCK_DATA:
+		if (read_write == I2C_SMBUS_READ) {
+			msg[1].len = data->block[0];
+		} else {
+			msg[0].len = data->block[0] + 1;
+			if (msg[0].len > I2C_SMBUS_BLOCK_MAX + 1) {
+				dev_err(&adapter->dev,
+					"Invalid block write size %d\n",
+					data->block[0]);
+				return -EINVAL;
+			}
+			for (i = 1; i <= data->block[0]; i++)
+				msgbuf0[i] = data->block[i];
+		}
+		break;
+	default:
+		dev_err(&adapter->dev, "Unsupported transaction %d\n", size);
+		return -EOPNOTSUPP;
+	}
+
+	i = ((flags & I2C_CLIENT_PEC) && size != I2C_SMBUS_QUICK
+				      && size != I2C_SMBUS_I2C_BLOCK_DATA);
+	if (i) {
+		/* Compute PEC if first message is a write */
+		if (!(msg[0].flags & I2C_M_RD)) {
+			if (num == 1) /* Write only */
+				i2c_smbus_add_pec(&msg[0]);
+			else /* Write followed by read */
+				partial_pec = i2c_smbus_msg_pec(0, &msg[0]);
+		}
+		/* Ask for PEC if last message is a read */
+		if (msg[num-1].flags & I2C_M_RD)
+			msg[num-1].len++;
+	}
+
+	status = i2c_transfer(adapter, msg, num);
+	if (status < 0)
+		return status;
+
+	/* Check PEC if last message is a read */
+	if (i && (msg[num-1].flags & I2C_M_RD)) {
+		status = i2c_smbus_check_pec(partial_pec, &msg[num-1]);
+		if (status < 0)
+			return status;
+	}
+
+	if (read_write == I2C_SMBUS_READ)
+		switch (size) {
+		case I2C_SMBUS_BYTE:
+			data->byte = msgbuf0[0];
+			break;
+		case I2C_SMBUS_BYTE_DATA:
+			data->byte = msgbuf1[0];
+			break;
+		case I2C_SMBUS_WORD_DATA:
+		case I2C_SMBUS_PROC_CALL:
+			data->word = msgbuf1[0] | (msgbuf1[1] << 8);
+			break;
+		case I2C_SMBUS_I2C_BLOCK_DATA:
+			for (i = 0; i < data->block[0]; i++)
+				data->block[i+1] = msgbuf1[i];
+			break;
+		case I2C_SMBUS_BLOCK_DATA:
+		case I2C_SMBUS_BLOCK_PROC_CALL:
+			for (i = 0; i < msgbuf1[0] + 1; i++)
+				data->block[i] = msgbuf1[i];
+			break;
+		}
+	return 0;
+}
+
+/**
+ * i2c_smbus_xfer - execute SMBus protocol operations
+ * @adapter: Handle to I2C bus
+ * @addr: Address of SMBus slave on that bus
+ * @flags: I2C_CLIENT_* flags (usually zero or I2C_CLIENT_PEC)
+ * @read_write: I2C_SMBUS_READ or I2C_SMBUS_WRITE
+ * @command: Byte interpreted by slave, for protocols which use such bytes
+ * @protocol: SMBus protocol operation to execute, such as I2C_SMBUS_PROC_CALL
+ * @data: Data to be read or written
+ *
+ * This executes an SMBus protocol operation, and returns a negative
+ * errno code else zero on success.
+ */
+s32 i2c_smbus_xfer(struct i2c_adapter *adapter, u16 addr, unsigned short flags,
+		   char read_write, u8 command, int protocol,
+		   union i2c_smbus_data *data)
+{
+	unsigned long orig_jiffies;
+	int try;
+	s32 res;
+
+	/* If enabled, the following two tracepoints are conditional on
+	 * read_write and protocol.
+	 */
+	trace_smbus_write(adapter, addr, flags, read_write,
+			  command, protocol, data);
+	trace_smbus_read(adapter, addr, flags, read_write,
+			 command, protocol);
+
+	flags &= I2C_M_TEN | I2C_CLIENT_PEC | I2C_CLIENT_SCCB;
+
+	if (adapter->algo->smbus_xfer) {
+		i2c_lock_bus(adapter, I2C_LOCK_SEGMENT);
+
+		/* Retry automatically on arbitration loss */
+		orig_jiffies = jiffies;
+		for (res = 0, try = 0; try <= adapter->retries; try++) {
+			res = adapter->algo->smbus_xfer(adapter, addr, flags,
+							read_write, command,
+							protocol, data);
+			if (res != -EAGAIN)
+				break;
+			if (time_after(jiffies,
+				       orig_jiffies + adapter->timeout))
+				break;
+		}
+		i2c_unlock_bus(adapter, I2C_LOCK_SEGMENT);
+
+		if (res != -EOPNOTSUPP || !adapter->algo->master_xfer)
+			goto trace;
+		/*
+		 * Fall back to i2c_smbus_xfer_emulated if the adapter doesn't
+		 * implement native support for the SMBus operation.
+		 */
+	}
+
+	res = i2c_smbus_xfer_emulated(adapter, addr, flags, read_write,
+				      command, protocol, data);
+
+trace:
+	/* If enabled, the reply tracepoint is conditional on read_write. */
+	trace_smbus_reply(adapter, addr, flags, read_write,
+			  command, protocol, data);
+	trace_smbus_result(adapter, addr, flags, read_write,
+			   command, protocol, res);
+
+	return res;
+}
+EXPORT_SYMBOL(i2c_smbus_xfer);
+
+/**
+ * i2c_smbus_read_i2c_block_data_or_emulated - read block or emulate
+ * @client: Handle to slave device
+ * @command: Byte interpreted by slave
+ * @length: Size of data block; SMBus allows at most I2C_SMBUS_BLOCK_MAX bytes
+ * @values: Byte array into which data will be read; big enough to hold
+ *	the data returned by the slave.  SMBus allows at most
+ *	I2C_SMBUS_BLOCK_MAX bytes.
+ *
+ * This executes the SMBus "block read" protocol if supported by the adapter.
+ * If block read is not supported, it emulates it using either word or byte
+ * read protocols depending on availability.
+ *
+ * The addresses of the I2C slave device that are accessed with this function
+ * must be mapped to a linear region, so that a block read will have the same
+ * effect as a byte read. Before using this function you must double-check
+ * if the I2C slave does support exchanging a block transfer with a byte
+ * transfer.
+ */
+s32 i2c_smbus_read_i2c_block_data_or_emulated(const struct i2c_client *client,
+					      u8 command, u8 length, u8 *values)
+{
+	u8 i = 0;
+	int status;
+
+	if (length > I2C_SMBUS_BLOCK_MAX)
+		length = I2C_SMBUS_BLOCK_MAX;
+
+	if (i2c_check_functionality(client->adapter, I2C_FUNC_SMBUS_READ_I2C_BLOCK))
+		return i2c_smbus_read_i2c_block_data(client, command, length, values);
+
+	if (!i2c_check_functionality(client->adapter, I2C_FUNC_SMBUS_READ_BYTE_DATA))
+		return -EOPNOTSUPP;
+
+	if (i2c_check_functionality(client->adapter, I2C_FUNC_SMBUS_READ_WORD_DATA)) {
+		while ((i + 2) <= length) {
+			status = i2c_smbus_read_word_data(client, command + i);
+			if (status < 0)
+				return status;
+			values[i] = status & 0xff;
+			values[i + 1] = status >> 8;
+			i += 2;
+		}
+	}
+
+	while (i < length) {
+		status = i2c_smbus_read_byte_data(client, command + i);
+		if (status < 0)
+			return status;
+		values[i] = status;
+		i++;
+	}
+
+	return i;
+}
+EXPORT_SYMBOL(i2c_smbus_read_i2c_block_data_or_emulated);
diff --git a/drivers/i2c/i2c-core.h b/drivers/i2c/i2c-core.h
index 17700bfddcf5..3d3d9bf02101 100644
--- a/drivers/i2c/i2c-core.h
+++ b/drivers/i2c/i2c-core.h
@@ -27,3 +27,36 @@ extern struct rw_semaphore	__i2c_board_lock;
 extern struct list_head	__i2c_board_list;
 extern int		__i2c_first_dynamic_bus_num;
 
+int i2c_check_addr_validity(unsigned addr, unsigned short flags);
+int i2c_check_7bit_addr_validity_strict(unsigned short addr);
+
+#ifdef CONFIG_ACPI
+const struct acpi_device_id *
+i2c_acpi_match_device(const struct acpi_device_id *matches,
+		      struct i2c_client *client);
+void i2c_acpi_register_devices(struct i2c_adapter *adap);
+#else /* CONFIG_ACPI */
+static inline void i2c_acpi_register_devices(struct i2c_adapter *adap) { }
+static inline const struct acpi_device_id *
+i2c_acpi_match_device(const struct acpi_device_id *matches,
+		      struct i2c_client *client)
+{
+	return NULL;
+}
+#endif /* CONFIG_ACPI */
+extern struct notifier_block i2c_acpi_notifier;
+
+#ifdef CONFIG_ACPI_I2C_OPREGION
+int i2c_acpi_install_space_handler(struct i2c_adapter *adapter);
+void i2c_acpi_remove_space_handler(struct i2c_adapter *adapter);
+#else /* CONFIG_ACPI_I2C_OPREGION */
+static inline int i2c_acpi_install_space_handler(struct i2c_adapter *adapter) { return 0; }
+static inline void i2c_acpi_remove_space_handler(struct i2c_adapter *adapter) { }
+#endif /* CONFIG_ACPI_I2C_OPREGION */
+
+#ifdef CONFIG_OF
+void of_i2c_register_devices(struct i2c_adapter *adap);
+#else
+static inline void of_i2c_register_devices(struct i2c_adapter *adap) { }
+#endif
+extern struct notifier_block i2c_of_notifier;
diff --git a/drivers/i2c/i2c-stub.c b/drivers/i2c/i2c-stub.c
index 06af583d5101..4a9ad91c5ba3 100644
--- a/drivers/i2c/i2c-stub.c
+++ b/drivers/i2c/i2c-stub.c
@@ -16,6 +16,7 @@
 */
 
 #define DEBUG 1
+#define pr_fmt(fmt) "i2c-stub: " fmt
 
 #include <linux/errno.h>
 #include <linux/i2c.h>
@@ -342,7 +343,7 @@ static int __init i2c_stub_allocate_banks(int i)
 	if (!chip->bank_words)
 		return -ENOMEM;
 
-	pr_debug("i2c-stub: Allocated %u banks of %u words each (registers 0x%02x to 0x%02x)\n",
+	pr_debug("Allocated %u banks of %u words each (registers 0x%02x to 0x%02x)\n",
 		 chip->bank_mask, chip->bank_size, chip->bank_start,
 		 chip->bank_end);
 
@@ -363,28 +364,27 @@ static int __init i2c_stub_init(void)
 	int i, ret;
 
 	if (!chip_addr[0]) {
-		pr_err("i2c-stub: Please specify a chip address\n");
+		pr_err("Please specify a chip address\n");
 		return -ENODEV;
 	}
 
 	for (i = 0; i < MAX_CHIPS && chip_addr[i]; i++) {
 		if (chip_addr[i] < 0x03 || chip_addr[i] > 0x77) {
-			pr_err("i2c-stub: Invalid chip address 0x%02x\n",
+			pr_err("Invalid chip address 0x%02x\n",
 			       chip_addr[i]);
 			return -EINVAL;
 		}
 
-		pr_info("i2c-stub: Virtual chip at 0x%02x\n", chip_addr[i]);
+		pr_info("Virtual chip at 0x%02x\n", chip_addr[i]);
 	}
 
 	/* Allocate memory for all chips at once */
 	stub_chips_nr = i;
 	stub_chips = kcalloc(stub_chips_nr, sizeof(struct stub_chip),
 			     GFP_KERNEL);
-	if (!stub_chips) {
-		pr_err("i2c-stub: Out of memory\n");
+	if (!stub_chips)
 		return -ENOMEM;
-	}
+
 	for (i = 0; i < stub_chips_nr; i++) {
 		INIT_LIST_HEAD(&stub_chips[i].smbus_blocks);
 
diff --git a/drivers/i2c/muxes/Kconfig b/drivers/i2c/muxes/Kconfig
index 2c64d0e0740f..17121329bb79 100644
--- a/drivers/i2c/muxes/Kconfig
+++ b/drivers/i2c/muxes/Kconfig
@@ -83,7 +83,7 @@ config I2C_MUX_PINCTRL
 	  different sets of pins at run-time.
 
 	  This driver can also be built as a module. If so, the module will be
-	  called pinctrl-i2cmux.
+	  called i2c-mux-pinctrl.
 
 config I2C_MUX_REG
 	tristate "Register-based I2C multiplexer"
diff --git a/drivers/ide/ide-timings.c b/drivers/ide/ide-timings.c
index 0e05f75934c9..1858e3ce3993 100644
--- a/drivers/ide/ide-timings.c
+++ b/drivers/ide/ide-timings.c
@@ -104,19 +104,19 @@ u16 ide_pio_cycle_time(ide_drive_t *drive, u8 pio)
 EXPORT_SYMBOL_GPL(ide_pio_cycle_time);
 
 #define ENOUGH(v, unit)		(((v) - 1) / (unit) + 1)
-#define EZ(v, unit)		((v) ? ENOUGH(v, unit) : 0)
+#define EZ(v, unit)		((v) ? ENOUGH((v) * 1000, unit) : 0)
 
 static void ide_timing_quantize(struct ide_timing *t, struct ide_timing *q,
 				int T, int UT)
 {
-	q->setup   = EZ(t->setup   * 1000,  T);
-	q->act8b   = EZ(t->act8b   * 1000,  T);
-	q->rec8b   = EZ(t->rec8b   * 1000,  T);
-	q->cyc8b   = EZ(t->cyc8b   * 1000,  T);
-	q->active  = EZ(t->active  * 1000,  T);
-	q->recover = EZ(t->recover * 1000,  T);
-	q->cycle   = EZ(t->cycle   * 1000,  T);
-	q->udma    = EZ(t->udma    * 1000, UT);
+	q->setup   = EZ(t->setup,   T);
+	q->act8b   = EZ(t->act8b,   T);
+	q->rec8b   = EZ(t->rec8b,   T);
+	q->cyc8b   = EZ(t->cyc8b,   T);
+	q->active  = EZ(t->active,  T);
+	q->recover = EZ(t->recover, T);
+	q->cycle   = EZ(t->cycle,   T);
+	q->udma    = EZ(t->udma,    UT);
 }
 
 void ide_timing_merge(struct ide_timing *a, struct ide_timing *b,
diff --git a/drivers/iio/accel/bmc150-accel-core.c b/drivers/iio/accel/bmc150-accel-core.c
index 6b5d3be283c4..807299dd45eb 100644
--- a/drivers/iio/accel/bmc150-accel-core.c
+++ b/drivers/iio/accel/bmc150-accel-core.c
@@ -193,7 +193,6 @@ struct bmc150_accel_data {
 	struct regmap *regmap;
 	int irq;
 	struct bmc150_accel_interrupt interrupts[BMC150_ACCEL_INTERRUPTS];
-	atomic_t active_intr;
 	struct bmc150_accel_trigger triggers[BMC150_ACCEL_TRIGGERS];
 	struct mutex mutex;
 	u8 fifo_mode, watermark;
@@ -493,11 +492,6 @@ static int bmc150_accel_set_interrupt(struct bmc150_accel_data *data, int i,
 		goto out_fix_power_state;
 	}
 
-	if (state)
-		atomic_inc(&data->active_intr);
-	else
-		atomic_dec(&data->active_intr);
-
 	return 0;
 
 out_fix_power_state:
@@ -1710,8 +1704,7 @@ static int bmc150_accel_resume(struct device *dev)
 	struct bmc150_accel_data *data = iio_priv(indio_dev);
 
 	mutex_lock(&data->mutex);
-	if (atomic_read(&data->active_intr))
-		bmc150_accel_set_mode(data, BMC150_ACCEL_SLEEP_MODE_NORMAL, 0);
+	bmc150_accel_set_mode(data, BMC150_ACCEL_SLEEP_MODE_NORMAL, 0);
 	bmc150_accel_fifo_set_mode(data);
 	mutex_unlock(&data->mutex);
 
diff --git a/drivers/iio/accel/st_accel_core.c b/drivers/iio/accel/st_accel_core.c
index 07d1489cd457..e44f62bf9caa 100644
--- a/drivers/iio/accel/st_accel_core.c
+++ b/drivers/iio/accel/st_accel_core.c
@@ -166,6 +166,10 @@ static const struct st_sensor_settings st_accel_sensors_settings[] = {
 			.mask_ihl = 0x02,
 			.addr_stat_drdy = ST_SENSORS_DEFAULT_STAT_ADDR,
 		},
+		.sim = {
+			.addr = 0x23,
+			.value = BIT(0),
+		},
 		.multi_read_bit = true,
 		.bootime = 2,
 	},
@@ -234,6 +238,10 @@ static const struct st_sensor_settings st_accel_sensors_settings[] = {
 			.mask_od = 0x40,
 			.addr_stat_drdy = ST_SENSORS_DEFAULT_STAT_ADDR,
 		},
+		.sim = {
+			.addr = 0x23,
+			.value = BIT(0),
+		},
 		.multi_read_bit = true,
 		.bootime = 2,
 	},
@@ -316,6 +324,10 @@ static const struct st_sensor_settings st_accel_sensors_settings[] = {
 				.en_mask = 0x08,
 			},
 		},
+		.sim = {
+			.addr = 0x24,
+			.value = BIT(0),
+		},
 		.multi_read_bit = false,
 		.bootime = 2,
 	},
@@ -379,6 +391,10 @@ static const struct st_sensor_settings st_accel_sensors_settings[] = {
 			.mask_int1 = 0x04,
 			.addr_stat_drdy = ST_SENSORS_DEFAULT_STAT_ADDR,
 		},
+		.sim = {
+			.addr = 0x21,
+			.value = BIT(1),
+		},
 		.multi_read_bit = true,
 		.bootime = 2, /* guess */
 	},
@@ -437,6 +453,10 @@ static const struct st_sensor_settings st_accel_sensors_settings[] = {
 			.mask_od = 0x40,
 			.addr_stat_drdy = ST_SENSORS_DEFAULT_STAT_ADDR,
 		},
+		.sim = {
+			.addr = 0x21,
+			.value = BIT(7),
+		},
 		.multi_read_bit = false,
 		.bootime = 2, /* guess */
 	},
@@ -499,6 +519,10 @@ static const struct st_sensor_settings st_accel_sensors_settings[] = {
 			.addr_ihl = 0x22,
 			.mask_ihl = 0x80,
 		},
+		.sim = {
+			.addr = 0x23,
+			.value = BIT(0),
+		},
 		.multi_read_bit = true,
 		.bootime = 2,
 	},
@@ -547,6 +571,10 @@ static const struct st_sensor_settings st_accel_sensors_settings[] = {
 			.mask_int1 = 0x04,
 			.addr_stat_drdy = ST_SENSORS_DEFAULT_STAT_ADDR,
 		},
+		.sim = {
+			.addr = 0x21,
+			.value = BIT(1),
+		},
 		.multi_read_bit = false,
 		.bootime = 2,
 	},
@@ -614,6 +642,10 @@ static const struct st_sensor_settings st_accel_sensors_settings[] = {
 			.mask_ihl = 0x02,
 			.addr_stat_drdy = ST_SENSORS_DEFAULT_STAT_ADDR,
 		},
+		.sim = {
+			.addr = 0x23,
+			.value = BIT(0),
+		},
 		.multi_read_bit = true,
 		.bootime = 2,
 	},
diff --git a/drivers/iio/adc/aspeed_adc.c b/drivers/iio/adc/aspeed_adc.c
index e0ea411a0b2d..c02b23d675cb 100644
--- a/drivers/iio/adc/aspeed_adc.c
+++ b/drivers/iio/adc/aspeed_adc.c
@@ -22,6 +22,7 @@
 
 #include <linux/iio/iio.h>
 #include <linux/iio/driver.h>
+#include <linux/iopoll.h>
 
 #define ASPEED_RESOLUTION_BITS		10
 #define ASPEED_CLOCKS_PER_SAMPLE	12
@@ -38,11 +39,17 @@
 
 #define ASPEED_ENGINE_ENABLE		BIT(0)
 
+#define ASPEED_ADC_CTRL_INIT_RDY	BIT(8)
+
+#define ASPEED_ADC_INIT_POLLING_TIME	500
+#define ASPEED_ADC_INIT_TIMEOUT		500000
+
 struct aspeed_adc_model_data {
 	const char *model_name;
 	unsigned int min_sampling_rate;	// Hz
 	unsigned int max_sampling_rate;	// Hz
 	unsigned int vref_voltage;	// mV
+	bool wait_init_sequence;
 };
 
 struct aspeed_adc_data {
@@ -211,6 +218,24 @@ static int aspeed_adc_probe(struct platform_device *pdev)
 		goto scaler_error;
 	}
 
+	model_data = of_device_get_match_data(&pdev->dev);
+
+	if (model_data->wait_init_sequence) {
+		/* Enable engine in normal mode. */
+		writel(ASPEED_OPERATION_MODE_NORMAL | ASPEED_ENGINE_ENABLE,
+		       data->base + ASPEED_REG_ENGINE_CONTROL);
+
+		/* Wait for initial sequence complete. */
+		ret = readl_poll_timeout(data->base + ASPEED_REG_ENGINE_CONTROL,
+					 adc_engine_control_reg_val,
+					 adc_engine_control_reg_val &
+					 ASPEED_ADC_CTRL_INIT_RDY,
+					 ASPEED_ADC_INIT_POLLING_TIME,
+					 ASPEED_ADC_INIT_TIMEOUT);
+		if (ret)
+			goto scaler_error;
+	}
+
 	/* Start all channels in normal mode. */
 	ret = clk_prepare_enable(data->clk_scaler->clk);
 	if (ret)
@@ -274,6 +299,7 @@ static const struct aspeed_adc_model_data ast2500_model_data = {
 	.vref_voltage = 1800, // mV
 	.min_sampling_rate = 1,
 	.max_sampling_rate = 1000000,
+	.wait_init_sequence = true,
 };
 
 static const struct of_device_id aspeed_adc_matches[] = {
diff --git a/drivers/iio/adc/axp288_adc.c b/drivers/iio/adc/axp288_adc.c
index 64799ad7ebad..462a99c13e7a 100644
--- a/drivers/iio/adc/axp288_adc.c
+++ b/drivers/iio/adc/axp288_adc.c
@@ -28,6 +28,8 @@
 #include <linux/iio/driver.h>
 
 #define AXP288_ADC_EN_MASK		0xF1
+#define AXP288_ADC_TS_PIN_GPADC		0xF2
+#define AXP288_ADC_TS_PIN_ON		0xF3
 
 enum axp288_adc_id {
 	AXP288_ADC_TS,
@@ -121,6 +123,26 @@ static int axp288_adc_read_channel(int *val, unsigned long address,
 	return IIO_VAL_INT;
 }
 
+static int axp288_adc_set_ts(struct regmap *regmap, unsigned int mode,
+				unsigned long address)
+{
+	int ret;
+
+	/* channels other than GPADC do not need to switch TS pin */
+	if (address != AXP288_GP_ADC_H)
+		return 0;
+
+	ret = regmap_write(regmap, AXP288_ADC_TS_PIN_CTRL, mode);
+	if (ret)
+		return ret;
+
+	/* When switching to the GPADC pin give things some time to settle */
+	if (mode == AXP288_ADC_TS_PIN_GPADC)
+		usleep_range(6000, 10000);
+
+	return 0;
+}
+
 static int axp288_adc_read_raw(struct iio_dev *indio_dev,
 			struct iio_chan_spec const *chan,
 			int *val, int *val2, long mask)
@@ -131,7 +153,16 @@ static int axp288_adc_read_raw(struct iio_dev *indio_dev,
 	mutex_lock(&indio_dev->mlock);
 	switch (mask) {
 	case IIO_CHAN_INFO_RAW:
+		if (axp288_adc_set_ts(info->regmap, AXP288_ADC_TS_PIN_GPADC,
+					chan->address)) {
+			dev_err(&indio_dev->dev, "GPADC mode\n");
+			ret = -EINVAL;
+			break;
+		}
 		ret = axp288_adc_read_channel(val, chan->address, info->regmap);
+		if (axp288_adc_set_ts(info->regmap, AXP288_ADC_TS_PIN_ON,
+						chan->address))
+			dev_err(&indio_dev->dev, "TS pin restore\n");
 		break;
 	default:
 		ret = -EINVAL;
@@ -141,6 +172,15 @@ static int axp288_adc_read_raw(struct iio_dev *indio_dev,
 	return ret;
 }
 
+static int axp288_adc_set_state(struct regmap *regmap)
+{
+	/* ADC should be always enabled for internal FG to function */
+	if (regmap_write(regmap, AXP288_ADC_TS_PIN_CTRL, AXP288_ADC_TS_PIN_ON))
+		return -EIO;
+
+	return regmap_write(regmap, AXP20X_ADC_EN1, AXP288_ADC_EN_MASK);
+}
+
 static const struct iio_info axp288_adc_iio_info = {
 	.read_raw = &axp288_adc_read_raw,
 	.driver_module = THIS_MODULE,
@@ -169,7 +209,7 @@ static int axp288_adc_probe(struct platform_device *pdev)
 	 * Set ADC to enabled state at all time, including system suspend.
 	 * otherwise internal fuel gauge functionality may be affected.
 	 */
-	ret = regmap_write(info->regmap, AXP20X_ADC_EN1, AXP288_ADC_EN_MASK);
+	ret = axp288_adc_set_state(axp20x->regmap);
 	if (ret) {
 		dev_err(&pdev->dev, "unable to enable ADC device\n");
 		return ret;
diff --git a/drivers/iio/adc/sun4i-gpadc-iio.c b/drivers/iio/adc/sun4i-gpadc-iio.c
index 81d4c39e414a..137f577d9432 100644
--- a/drivers/iio/adc/sun4i-gpadc-iio.c
+++ b/drivers/iio/adc/sun4i-gpadc-iio.c
@@ -256,6 +256,7 @@ static int sun4i_gpadc_read(struct iio_dev *indio_dev, int channel, int *val,
 
 err:
 	pm_runtime_put_autosuspend(indio_dev->dev.parent);
+	disable_irq(irq);
 	mutex_unlock(&info->mutex);
 
 	return ret;
@@ -365,7 +366,6 @@ static irqreturn_t sun4i_gpadc_temp_data_irq_handler(int irq, void *dev_id)
 		complete(&info->completion);
 
 out:
-	disable_irq_nosync(info->temp_data_irq);
 	return IRQ_HANDLED;
 }
 
@@ -380,7 +380,6 @@ static irqreturn_t sun4i_gpadc_fifo_data_irq_handler(int irq, void *dev_id)
 		complete(&info->completion);
 
 out:
-	disable_irq_nosync(info->fifo_data_irq);
 	return IRQ_HANDLED;
 }
 
diff --git a/drivers/iio/adc/vf610_adc.c b/drivers/iio/adc/vf610_adc.c
index 01fc76f7d660..c168e0db329a 100644
--- a/drivers/iio/adc/vf610_adc.c
+++ b/drivers/iio/adc/vf610_adc.c
@@ -77,7 +77,7 @@
 #define VF610_ADC_ADSTS_MASK		0x300
 #define VF610_ADC_ADLPC_EN		0x80
 #define VF610_ADC_ADHSC_EN		0x400
-#define VF610_ADC_REFSEL_VALT		0x100
+#define VF610_ADC_REFSEL_VALT		0x800
 #define VF610_ADC_REFSEL_VBG		0x1000
 #define VF610_ADC_ADTRG_HARD		0x2000
 #define VF610_ADC_AVGS_8		0x4000
diff --git a/drivers/iio/common/st_sensors/st_sensors_core.c b/drivers/iio/common/st_sensors/st_sensors_core.c
index 79c8c7cd70d5..6e6a1ecc99dd 100644
--- a/drivers/iio/common/st_sensors/st_sensors_core.c
+++ b/drivers/iio/common/st_sensors/st_sensors_core.c
@@ -550,6 +550,31 @@ out:
 }
 EXPORT_SYMBOL(st_sensors_read_info_raw);
 
+static int st_sensors_init_interface_mode(struct iio_dev *indio_dev,
+			const struct st_sensor_settings *sensor_settings)
+{
+	struct st_sensor_data *sdata = iio_priv(indio_dev);
+	struct device_node *np = sdata->dev->of_node;
+	struct st_sensors_platform_data *pdata;
+
+	pdata = (struct st_sensors_platform_data *)sdata->dev->platform_data;
+	if (((np && of_property_read_bool(np, "spi-3wire")) ||
+	     (pdata && pdata->spi_3wire)) && sensor_settings->sim.addr) {
+		int err;
+
+		err = sdata->tf->write_byte(&sdata->tb, sdata->dev,
+					    sensor_settings->sim.addr,
+					    sensor_settings->sim.value);
+		if (err < 0) {
+			dev_err(&indio_dev->dev,
+				"failed to init interface mode\n");
+			return err;
+		}
+	}
+
+	return 0;
+}
+
 int st_sensors_check_device_support(struct iio_dev *indio_dev,
 			int num_sensors_list,
 			const struct st_sensor_settings *sensor_settings)
@@ -574,6 +599,10 @@ int st_sensors_check_device_support(struct iio_dev *indio_dev,
 		return -ENODEV;
 	}
 
+	err = st_sensors_init_interface_mode(indio_dev, &sensor_settings[i]);
+	if (err < 0)
+		return err;
+
 	if (sensor_settings[i].wai_addr) {
 		err = sdata->tf->read_byte(&sdata->tb, sdata->dev,
 					   sensor_settings[i].wai_addr, &wai);
diff --git a/drivers/iio/light/tsl2563.c b/drivers/iio/light/tsl2563.c
index e7d4ea75e007..7599693f7fe9 100644
--- a/drivers/iio/light/tsl2563.c
+++ b/drivers/iio/light/tsl2563.c
@@ -626,7 +626,7 @@ static irqreturn_t tsl2563_event_handler(int irq, void *private)
 	struct tsl2563_chip *chip = iio_priv(dev_info);
 
 	iio_push_event(dev_info,
-		       IIO_UNMOD_EVENT_CODE(IIO_LIGHT,
+		       IIO_UNMOD_EVENT_CODE(IIO_INTENSITY,
 					    0,
 					    IIO_EV_TYPE_THRESH,
 					    IIO_EV_DIR_EITHER),
diff --git a/drivers/iio/pressure/st_pressure_core.c b/drivers/iio/pressure/st_pressure_core.c
index aa61ec15c139..f1bce05ffa13 100644
--- a/drivers/iio/pressure/st_pressure_core.c
+++ b/drivers/iio/pressure/st_pressure_core.c
@@ -456,7 +456,7 @@ static const struct st_sensor_settings st_press_sensors_settings[] = {
 			.mask_od = 0x40,
 			.addr_stat_drdy = ST_SENSORS_DEFAULT_STAT_ADDR,
 		},
-		.multi_read_bit = true,
+		.multi_read_bit = false,
 		.bootime = 2,
 	},
 };
diff --git a/drivers/infiniband/core/addr.c b/drivers/infiniband/core/addr.c
index a6cb379a4ebc..437522ca97b4 100644
--- a/drivers/infiniband/core/addr.c
+++ b/drivers/infiniband/core/addr.c
@@ -61,6 +61,7 @@ struct addr_req {
 	void (*callback)(int status, struct sockaddr *src_addr,
 			 struct rdma_dev_addr *addr, void *context);
 	unsigned long timeout;
+	struct delayed_work work;
 	int status;
 	u32 seq;
 };
@@ -268,6 +269,7 @@ int rdma_translate_ip(const struct sockaddr *addr,
 			return ret;
 
 		ret = rdma_copy_addr(dev_addr, dev, NULL);
+		dev_addr->bound_dev_if = dev->ifindex;
 		if (vlan_id)
 			*vlan_id = rdma_vlan_dev_vlan_id(dev);
 		dev_put(dev);
@@ -280,6 +282,7 @@ int rdma_translate_ip(const struct sockaddr *addr,
 					  &((const struct sockaddr_in6 *)addr)->sin6_addr,
 					  dev, 1)) {
 				ret = rdma_copy_addr(dev_addr, dev, NULL);
+				dev_addr->bound_dev_if = dev->ifindex;
 				if (vlan_id)
 					*vlan_id = rdma_vlan_dev_vlan_id(dev);
 				break;
@@ -293,7 +296,7 @@ int rdma_translate_ip(const struct sockaddr *addr,
 }
 EXPORT_SYMBOL(rdma_translate_ip);
 
-static void set_timeout(unsigned long time)
+static void set_timeout(struct delayed_work *delayed_work, unsigned long time)
 {
 	unsigned long delay;
 
@@ -301,7 +304,7 @@ static void set_timeout(unsigned long time)
 	if ((long)delay < 0)
 		delay = 0;
 
-	mod_delayed_work(addr_wq, &work, delay);
+	mod_delayed_work(addr_wq, delayed_work, delay);
 }
 
 static void queue_req(struct addr_req *req)
@@ -316,8 +319,7 @@ static void queue_req(struct addr_req *req)
 
 	list_add(&req->list, &temp_req->list);
 
-	if (req_list.next == &req->list)
-		set_timeout(req->timeout);
+	set_timeout(&req->work, req->timeout);
 	mutex_unlock(&lock);
 }
 
@@ -405,10 +407,10 @@ static int addr4_resolve(struct sockaddr_in *src_in,
 	fl4.saddr = src_ip;
 	fl4.flowi4_oif = addr->bound_dev_if;
 	rt = ip_route_output_key(addr->net, &fl4);
-	if (IS_ERR(rt)) {
-		ret = PTR_ERR(rt);
-		goto out;
-	}
+	ret = PTR_ERR_OR_ZERO(rt);
+	if (ret)
+		return ret;
+
 	src_in->sin_family = AF_INET;
 	src_in->sin_addr.s_addr = fl4.saddr;
 
@@ -423,8 +425,6 @@ static int addr4_resolve(struct sockaddr_in *src_in,
 
 	*prt = rt;
 	return 0;
-out:
-	return ret;
 }
 
 #if IS_ENABLED(CONFIG_IPV6)
@@ -509,6 +509,11 @@ static int addr_resolve(struct sockaddr *src_in,
 	struct dst_entry *dst;
 	int ret;
 
+	if (!addr->net) {
+		pr_warn_ratelimited("%s: missing namespace\n", __func__);
+		return -EINVAL;
+	}
+
 	if (src_in->sa_family == AF_INET) {
 		struct rtable *rt = NULL;
 		const struct sockaddr_in *dst_in4 =
@@ -522,8 +527,12 @@ static int addr_resolve(struct sockaddr *src_in,
 		if (resolve_neigh)
 			ret = addr_resolve_neigh(&rt->dst, dst_in, addr, seq);
 
-		ndev = rt->dst.dev;
-		dev_hold(ndev);
+		if (addr->bound_dev_if) {
+			ndev = dev_get_by_index(addr->net, addr->bound_dev_if);
+		} else {
+			ndev = rt->dst.dev;
+			dev_hold(ndev);
+		}
 
 		ip_rt_put(rt);
 	} else {
@@ -539,19 +548,63 @@ static int addr_resolve(struct sockaddr *src_in,
 		if (resolve_neigh)
 			ret = addr_resolve_neigh(dst, dst_in, addr, seq);
 
-		ndev = dst->dev;
-		dev_hold(ndev);
+		if (addr->bound_dev_if) {
+			ndev = dev_get_by_index(addr->net, addr->bound_dev_if);
+		} else {
+			ndev = dst->dev;
+			dev_hold(ndev);
+		}
 
 		dst_release(dst);
 	}
 
-	addr->bound_dev_if = ndev->ifindex;
-	addr->net = dev_net(ndev);
+	if (ndev->flags & IFF_LOOPBACK) {
+		ret = rdma_translate_ip(dst_in, addr, NULL);
+		/*
+		 * Put the loopback device and get the translated
+		 * device instead.
+		 */
+		dev_put(ndev);
+		ndev = dev_get_by_index(addr->net, addr->bound_dev_if);
+	} else {
+		addr->bound_dev_if = ndev->ifindex;
+	}
 	dev_put(ndev);
 
 	return ret;
 }
 
+static void process_one_req(struct work_struct *_work)
+{
+	struct addr_req *req;
+	struct sockaddr *src_in, *dst_in;
+
+	mutex_lock(&lock);
+	req = container_of(_work, struct addr_req, work.work);
+
+	if (req->status == -ENODATA) {
+		src_in = (struct sockaddr *)&req->src_addr;
+		dst_in = (struct sockaddr *)&req->dst_addr;
+		req->status = addr_resolve(src_in, dst_in, req->addr,
+					   true, req->seq);
+		if (req->status && time_after_eq(jiffies, req->timeout)) {
+			req->status = -ETIMEDOUT;
+		} else if (req->status == -ENODATA) {
+			/* requeue the work for retrying again */
+			set_timeout(&req->work, req->timeout);
+			mutex_unlock(&lock);
+			return;
+		}
+	}
+	list_del(&req->list);
+	mutex_unlock(&lock);
+
+	req->callback(req->status, (struct sockaddr *)&req->src_addr,
+		req->addr, req->context);
+	put_client(req->client);
+	kfree(req);
+}
+
 static void process_req(struct work_struct *work)
 {
 	struct addr_req *req, *temp_req;
@@ -569,20 +622,23 @@ static void process_req(struct work_struct *work)
 						   true, req->seq);
 			if (req->status && time_after_eq(jiffies, req->timeout))
 				req->status = -ETIMEDOUT;
-			else if (req->status == -ENODATA)
+			else if (req->status == -ENODATA) {
+				set_timeout(&req->work, req->timeout);
 				continue;
+			}
 		}
 		list_move_tail(&req->list, &done_list);
 	}
 
-	if (!list_empty(&req_list)) {
-		req = list_entry(req_list.next, struct addr_req, list);
-		set_timeout(req->timeout);
-	}
 	mutex_unlock(&lock);
 
 	list_for_each_entry_safe(req, temp_req, &done_list, list) {
 		list_del(&req->list);
+		/* It is safe to cancel other work items from this work item
+		 * because at a time there can be only one work item running
+		 * with this single threaded work queue.
+		 */
+		cancel_delayed_work(&req->work);
 		req->callback(req->status, (struct sockaddr *) &req->src_addr,
 			req->addr, req->context);
 		put_client(req->client);
@@ -625,6 +681,7 @@ int rdma_resolve_ip(struct rdma_addr_client *client,
 	req->context = context;
 	req->client = client;
 	atomic_inc(&client->refcount);
+	INIT_DELAYED_WORK(&req->work, process_one_req);
 	req->seq = (u32)atomic_inc_return(&ib_nl_addr_request_seq);
 
 	req->status = addr_resolve(src_in, dst_in, addr, true, req->seq);
@@ -679,7 +736,7 @@ void rdma_addr_cancel(struct rdma_dev_addr *addr)
 			req->status = -ECANCELED;
 			req->timeout = jiffies;
 			list_move(&req->list, &req_list);
-			set_timeout(req->timeout);
+			set_timeout(&req->work, req->timeout);
 			break;
 		}
 	}
@@ -785,9 +842,8 @@ static int netevent_callback(struct notifier_block *self, unsigned long event,
 	if (event == NETEVENT_NEIGH_UPDATE) {
 		struct neighbour *neigh = ctx;
 
-		if (neigh->nud_state & NUD_VALID) {
-			set_timeout(jiffies);
-		}
+		if (neigh->nud_state & NUD_VALID)
+			set_timeout(&work, jiffies);
 	}
 	return 0;
 }
@@ -798,7 +854,7 @@ static struct notifier_block nb = {
 
 int addr_init(void)
 {
-	addr_wq = alloc_workqueue("ib_addr", WQ_MEM_RECLAIM, 0);
+	addr_wq = alloc_ordered_workqueue("ib_addr", WQ_MEM_RECLAIM);
 	if (!addr_wq)
 		return -ENOMEM;
 
diff --git a/drivers/infiniband/core/cma.c b/drivers/infiniband/core/cma.c
index 31bb82d8ecd7..0eb393237ba2 100644
--- a/drivers/infiniband/core/cma.c
+++ b/drivers/infiniband/core/cma.c
@@ -623,22 +623,11 @@ static inline int cma_validate_port(struct ib_device *device, u8 port,
 	if ((dev_type != ARPHRD_INFINIBAND) && rdma_protocol_ib(device, port))
 		return ret;
 
-	if (dev_type == ARPHRD_ETHER && rdma_protocol_roce(device, port)) {
+	if (dev_type == ARPHRD_ETHER && rdma_protocol_roce(device, port))
 		ndev = dev_get_by_index(&init_net, bound_if_index);
-		if (ndev && ndev->flags & IFF_LOOPBACK) {
-			pr_info("detected loopback device\n");
-			dev_put(ndev);
-
-			if (!device->get_netdev)
-				return -EOPNOTSUPP;
-
-			ndev = device->get_netdev(device, port);
-			if (!ndev)
-				return -ENODEV;
-		}
-	} else {
+	else
 		gid_type = IB_GID_TYPE_IB;
-	}
+
 
 	ret = ib_find_cached_gid_by_port(device, gid, gid_type, port,
 					 ndev, NULL);
@@ -1044,6 +1033,8 @@ int rdma_init_qp_attr(struct rdma_cm_id *id, struct ib_qp_attr *qp_attr,
 		} else
 			ret = iw_cm_init_qp_attr(id_priv->cm_id.iw, qp_attr,
 						 qp_attr_mask);
+		qp_attr->port_num = id_priv->id.port_num;
+		*qp_attr_mask |= IB_QP_PORT;
 	} else
 		ret = -ENOSYS;
 
@@ -2569,21 +2560,6 @@ static int cma_resolve_iboe_route(struct rdma_id_private *id_priv)
 			goto err2;
 		}
 
-		if (ndev->flags & IFF_LOOPBACK) {
-			dev_put(ndev);
-			if (!id_priv->id.device->get_netdev) {
-				ret = -EOPNOTSUPP;
-				goto err2;
-			}
-
-			ndev = id_priv->id.device->get_netdev(id_priv->id.device,
-							      id_priv->id.port_num);
-			if (!ndev) {
-				ret = -ENODEV;
-				goto err2;
-			}
-		}
-
 		supported_gids = roce_gid_type_mask_support(id_priv->id.device,
 							    id_priv->id.port_num);
 		gid_type = cma_route_gid_type(addr->dev_addr.network,
diff --git a/drivers/infiniband/core/device.c b/drivers/infiniband/core/device.c
index a5dfab6adf49..221468f77128 100644
--- a/drivers/infiniband/core/device.c
+++ b/drivers/infiniband/core/device.c
@@ -537,10 +537,11 @@ void ib_unregister_device(struct ib_device *device)
 	}
 	up_read(&lists_rwsem);
 
-	mutex_unlock(&device_mutex);
-
 	ib_device_unregister_rdmacg(device);
 	ib_device_unregister_sysfs(device);
+
+	mutex_unlock(&device_mutex);
+
 	ib_cache_cleanup_one(device);
 
 	ib_security_destroy_port_pkey_list(device);
diff --git a/drivers/infiniband/core/roce_gid_mgmt.c b/drivers/infiniband/core/roce_gid_mgmt.c
index db958d3207ef..94a9eefb3cfc 100644
--- a/drivers/infiniband/core/roce_gid_mgmt.c
+++ b/drivers/infiniband/core/roce_gid_mgmt.c
@@ -42,6 +42,8 @@
 #include <rdma/ib_cache.h>
 #include <rdma/ib_addr.h>
 
+static struct workqueue_struct *gid_cache_wq;
+
 enum gid_op_type {
 	GID_DEL = 0,
 	GID_ADD
@@ -560,7 +562,7 @@ static int netdevice_queue_work(struct netdev_event_work_cmd *cmds,
 	}
 	INIT_WORK(&ndev_work->work, netdevice_event_work_handler);
 
-	queue_work(ib_wq, &ndev_work->work);
+	queue_work(gid_cache_wq, &ndev_work->work);
 
 	return NOTIFY_DONE;
 }
@@ -693,7 +695,7 @@ static int addr_event(struct notifier_block *this, unsigned long event,
 	dev_hold(ndev);
 	work->gid_attr.ndev   = ndev;
 
-	queue_work(ib_wq, &work->work);
+	queue_work(gid_cache_wq, &work->work);
 
 	return NOTIFY_DONE;
 }
@@ -740,6 +742,10 @@ static struct notifier_block nb_inet6addr = {
 
 int __init roce_gid_mgmt_init(void)
 {
+	gid_cache_wq = alloc_ordered_workqueue("gid-cache-wq", 0);
+	if (!gid_cache_wq)
+		return -ENOMEM;
+
 	register_inetaddr_notifier(&nb_inetaddr);
 	if (IS_ENABLED(CONFIG_IPV6))
 		register_inet6addr_notifier(&nb_inet6addr);
@@ -764,4 +770,5 @@ void __exit roce_gid_mgmt_cleanup(void)
 	 * ib-core is removed, all physical devices have been removed,
 	 * so no issue with remaining hardware contexts.
 	 */
+	destroy_workqueue(gid_cache_wq);
 }
diff --git a/drivers/infiniband/core/uverbs_cmd.c b/drivers/infiniband/core/uverbs_cmd.c
index 8ba9bfb073d1..c551d2b275fd 100644
--- a/drivers/infiniband/core/uverbs_cmd.c
+++ b/drivers/infiniband/core/uverbs_cmd.c
@@ -1153,7 +1153,7 @@ ssize_t ib_uverbs_resize_cq(struct ib_uverbs_file *file,
 			    int out_len)
 {
 	struct ib_uverbs_resize_cq	cmd;
-	struct ib_uverbs_resize_cq_resp	resp;
+	struct ib_uverbs_resize_cq_resp	resp = {};
 	struct ib_udata                 udata;
 	struct ib_cq			*cq;
 	int				ret = -EINVAL;
@@ -1296,7 +1296,6 @@ ssize_t ib_uverbs_destroy_cq(struct ib_uverbs_file *file,
 	struct ib_uobject		*uobj;
 	struct ib_cq               	*cq;
 	struct ib_ucq_object        	*obj;
-	struct ib_uverbs_event_queue	*ev_queue;
 	int                        	 ret = -EINVAL;
 
 	if (copy_from_user(&cmd, buf, sizeof cmd))
@@ -1313,7 +1312,6 @@ ssize_t ib_uverbs_destroy_cq(struct ib_uverbs_file *file,
 	 */
 	uverbs_uobject_get(uobj);
 	cq      = uobj->object;
-	ev_queue = cq->cq_context;
 	obj     = container_of(cq->uobject, struct ib_ucq_object, uobject);
 
 	memset(&resp, 0, sizeof(resp));
@@ -1935,7 +1933,8 @@ static int modify_qp(struct ib_uverbs_file *file,
 		goto out;
 	}
 
-	if (!rdma_is_port_valid(qp->device, cmd->base.port_num)) {
+	if ((cmd->base.attr_mask & IB_QP_PORT) &&
+	    !rdma_is_port_valid(qp->device, cmd->base.port_num)) {
 		ret = -EINVAL;
 		goto release_qp;
 	}
@@ -2005,28 +2004,13 @@ static int modify_qp(struct ib_uverbs_file *file,
 	rdma_ah_set_port_num(&attr->alt_ah_attr,
 			     cmd->base.alt_dest.port_num);
 
-	if (qp->real_qp == qp) {
-		if (cmd->base.attr_mask & IB_QP_AV) {
-			ret = ib_resolve_eth_dmac(qp->device, &attr->ah_attr);
-			if (ret)
-				goto release_qp;
-		}
-		ret = ib_security_modify_qp(qp,
-					    attr,
-					    modify_qp_mask(qp->qp_type,
-							   cmd->base.attr_mask),
-					    udata);
-	} else {
-		ret = ib_security_modify_qp(qp,
-					    attr,
-					    modify_qp_mask(qp->qp_type,
-							   cmd->base.attr_mask),
-					    NULL);
-	}
+	ret = ib_modify_qp_with_udata(qp, attr,
+				      modify_qp_mask(qp->qp_type,
+						     cmd->base.attr_mask),
+				      udata);
 
 release_qp:
 	uobj_put_obj_read(qp);
-
 out:
 	kfree(attr);
 
@@ -2103,7 +2087,6 @@ ssize_t ib_uverbs_destroy_qp(struct ib_uverbs_file *file,
 	struct ib_uverbs_destroy_qp      cmd;
 	struct ib_uverbs_destroy_qp_resp resp;
 	struct ib_uobject		*uobj;
-	struct ib_qp               	*qp;
 	struct ib_uqp_object        	*obj;
 	int                        	 ret = -EINVAL;
 
@@ -2117,7 +2100,6 @@ ssize_t ib_uverbs_destroy_qp(struct ib_uverbs_file *file,
 	if (IS_ERR(uobj))
 		return PTR_ERR(uobj);
 
-	qp  = uobj->object;
 	obj = container_of(uobj, struct ib_uqp_object, uevent.uobject);
 	/*
 	 * Make sure we don't free the memory in remove_commit as we still
@@ -3019,7 +3001,6 @@ int ib_uverbs_ex_destroy_wq(struct ib_uverbs_file *file,
 {
 	struct ib_uverbs_ex_destroy_wq	cmd = {};
 	struct ib_uverbs_ex_destroy_wq_resp	resp = {};
-	struct ib_wq			*wq;
 	struct ib_uobject		*uobj;
 	struct ib_uwq_object		*obj;
 	size_t required_cmd_sz;
@@ -3053,7 +3034,6 @@ int ib_uverbs_ex_destroy_wq(struct ib_uverbs_file *file,
 	if (IS_ERR(uobj))
 		return PTR_ERR(uobj);
 
-	wq = uobj->object;
 	obj = container_of(uobj, struct ib_uwq_object, uevent.uobject);
 	/*
 	 * Make sure we don't free the memory in remove_commit as we still
@@ -3743,10 +3723,8 @@ ssize_t ib_uverbs_destroy_srq(struct ib_uverbs_file *file,
 	struct ib_uverbs_destroy_srq      cmd;
 	struct ib_uverbs_destroy_srq_resp resp;
 	struct ib_uobject		 *uobj;
-	struct ib_srq               	 *srq;
 	struct ib_uevent_object        	 *obj;
 	int                         	  ret = -EINVAL;
-	enum ib_srq_type		  srq_type;
 
 	if (copy_from_user(&cmd, buf, sizeof cmd))
 		return -EFAULT;
@@ -3756,9 +3734,7 @@ ssize_t ib_uverbs_destroy_srq(struct ib_uverbs_file *file,
 	if (IS_ERR(uobj))
 		return PTR_ERR(uobj);
 
-	srq = uobj->object;
 	obj = container_of(uobj, struct ib_uevent_object, uobject);
-	srq_type = srq->srq_type;
 	/*
 	 * Make sure we don't free the memory in remove_commit as we still
 	 * needs the uobject memory to create the response.
diff --git a/drivers/infiniband/core/uverbs_main.c b/drivers/infiniband/core/uverbs_main.c
index 3d2609608f58..5e530d2bee44 100644
--- a/drivers/infiniband/core/uverbs_main.c
+++ b/drivers/infiniband/core/uverbs_main.c
@@ -250,6 +250,7 @@ void ib_uverbs_release_file(struct kref *ref)
 	if (atomic_dec_and_test(&file->device->refcount))
 		ib_uverbs_comp_dev(file->device);
 
+	kobject_put(&file->device->kobj);
 	kfree(file);
 }
 
@@ -917,7 +918,6 @@ err:
 static int ib_uverbs_close(struct inode *inode, struct file *filp)
 {
 	struct ib_uverbs_file *file = filp->private_data;
-	struct ib_uverbs_device *dev = file->device;
 
 	mutex_lock(&file->cleanup_mutex);
 	if (file->ucontext) {
@@ -939,7 +939,6 @@ static int ib_uverbs_close(struct inode *inode, struct file *filp)
 			 ib_uverbs_release_async_event_file);
 
 	kref_put(&file->ref, ib_uverbs_release_file);
-	kobject_put(&dev->kobj);
 
 	return 0;
 }
@@ -1154,7 +1153,6 @@ static void ib_uverbs_free_hw_resources(struct ib_uverbs_device *uverbs_dev,
 		kref_get(&file->ref);
 		mutex_unlock(&uverbs_dev->lists_mutex);
 
-		ib_uverbs_event_handler(&file->event_handler, &event);
 
 		mutex_lock(&file->cleanup_mutex);
 		ucontext = file->ucontext;
@@ -1171,6 +1169,7 @@ static void ib_uverbs_free_hw_resources(struct ib_uverbs_device *uverbs_dev,
 			 * for example due to freeing the resources
 			 * (e.g mmput).
 			 */
+			ib_uverbs_event_handler(&file->event_handler, &event);
 			ib_dev->disassociate_ucontext(ucontext);
 			mutex_lock(&file->cleanup_mutex);
 			ib_uverbs_cleanup_ucontext(file, ucontext, true);
diff --git a/drivers/infiniband/core/verbs.c b/drivers/infiniband/core/verbs.c
index c973a83c898b..7f8fe443df46 100644
--- a/drivers/infiniband/core/verbs.c
+++ b/drivers/infiniband/core/verbs.c
@@ -452,6 +452,19 @@ int ib_get_gids_from_rdma_hdr(const union rdma_network_hdr *hdr,
 }
 EXPORT_SYMBOL(ib_get_gids_from_rdma_hdr);
 
+/*
+ * This function creates ah from the incoming packet.
+ * Incoming packet has dgid of the receiver node on which this code is
+ * getting executed and, sgid contains the GID of the sender.
+ *
+ * When resolving mac address of destination, the arrived dgid is used
+ * as sgid and, sgid is used as dgid because sgid contains destinations
+ * GID whom to respond to.
+ *
+ * This is why when calling rdma_addr_find_l2_eth_by_grh() function, the
+ * position of arguments dgid and sgid do not match the order of the
+ * parameters.
+ */
 int ib_init_ah_from_wc(struct ib_device *device, u8 port_num,
 		       const struct ib_wc *wc, const struct ib_grh *grh,
 		       struct rdma_ah_attr *ah_attr)
@@ -507,11 +520,6 @@ int ib_init_ah_from_wc(struct ib_device *device, u8 port_num,
 		}
 
 		resolved_dev = dev_get_by_index(&init_net, if_index);
-		if (resolved_dev->flags & IFF_LOOPBACK) {
-			dev_put(resolved_dev);
-			resolved_dev = idev;
-			dev_hold(resolved_dev);
-		}
 		rcu_read_lock();
 		if (resolved_dev != idev && !rdma_is_upper_dev_rcu(idev,
 								   resolved_dev))
@@ -1268,20 +1276,36 @@ out:
 }
 EXPORT_SYMBOL(ib_resolve_eth_dmac);
 
-int ib_modify_qp(struct ib_qp *qp,
-		 struct ib_qp_attr *qp_attr,
-		 int qp_attr_mask)
+/**
+ * ib_modify_qp_with_udata - Modifies the attributes for the specified QP.
+ * @qp: The QP to modify.
+ * @attr: On input, specifies the QP attributes to modify.  On output,
+ *   the current values of selected QP attributes are returned.
+ * @attr_mask: A bit-mask used to specify which attributes of the QP
+ *   are being modified.
+ * @udata: pointer to user's input output buffer information
+ *   are being modified.
+ * It returns 0 on success and returns appropriate error code on error.
+ */
+int ib_modify_qp_with_udata(struct ib_qp *qp, struct ib_qp_attr *attr,
+			    int attr_mask, struct ib_udata *udata)
 {
+	int ret;
 
-	if (qp_attr_mask & IB_QP_AV) {
-		int ret;
-
-		ret = ib_resolve_eth_dmac(qp->device, &qp_attr->ah_attr);
+	if (attr_mask & IB_QP_AV) {
+		ret = ib_resolve_eth_dmac(qp->device, &attr->ah_attr);
 		if (ret)
 			return ret;
 	}
+	return ib_security_modify_qp(qp, attr, attr_mask, udata);
+}
+EXPORT_SYMBOL(ib_modify_qp_with_udata);
 
-	return ib_security_modify_qp(qp->real_qp, qp_attr, qp_attr_mask, NULL);
+int ib_modify_qp(struct ib_qp *qp,
+		 struct ib_qp_attr *qp_attr,
+		 int qp_attr_mask)
+{
+	return ib_modify_qp_with_udata(qp, qp_attr, qp_attr_mask, NULL);
 }
 EXPORT_SYMBOL(ib_modify_qp);
 
diff --git a/drivers/infiniband/hw/bnxt_re/bnxt_re.h b/drivers/infiniband/hw/bnxt_re/bnxt_re.h
index 08772836fded..85527532c49d 100644
--- a/drivers/infiniband/hw/bnxt_re/bnxt_re.h
+++ b/drivers/infiniband/hw/bnxt_re/bnxt_re.h
@@ -51,6 +51,8 @@
 #define BNXT_RE_PAGE_SIZE_8M		BIT(23)
 #define BNXT_RE_PAGE_SIZE_1G		BIT(30)
 
+#define BNXT_RE_MAX_MR_SIZE		BIT(30)
+
 #define BNXT_RE_MAX_QPC_COUNT		(64 * 1024)
 #define BNXT_RE_MAX_MRW_COUNT		(64 * 1024)
 #define BNXT_RE_MAX_SRQC_COUNT		(64 * 1024)
@@ -60,6 +62,13 @@
 
 #define BNXT_RE_RQ_WQE_THRESHOLD	32
 
+/*
+ * Setting the default ack delay value to 16, which means
+ * the default timeout is approx. 260ms(4 usec * 2 ^(timeout))
+ */
+
+#define BNXT_RE_DEFAULT_ACK_DELAY	16
+
 struct bnxt_re_work {
 	struct work_struct	work;
 	unsigned long		event;
diff --git a/drivers/infiniband/hw/bnxt_re/ib_verbs.c b/drivers/infiniband/hw/bnxt_re/ib_verbs.c
index c7bd68311d0c..f0e01b3ac711 100644
--- a/drivers/infiniband/hw/bnxt_re/ib_verbs.c
+++ b/drivers/infiniband/hw/bnxt_re/ib_verbs.c
@@ -145,10 +145,8 @@ int bnxt_re_query_device(struct ib_device *ibdev,
 	ib_attr->fw_ver = (u64)(unsigned long)(dev_attr->fw_ver);
 	bnxt_qplib_get_guid(rdev->netdev->dev_addr,
 			    (u8 *)&ib_attr->sys_image_guid);
-	ib_attr->max_mr_size = ~0ull;
-	ib_attr->page_size_cap = BNXT_RE_PAGE_SIZE_4K | BNXT_RE_PAGE_SIZE_8K |
-				 BNXT_RE_PAGE_SIZE_64K | BNXT_RE_PAGE_SIZE_2M |
-				 BNXT_RE_PAGE_SIZE_8M | BNXT_RE_PAGE_SIZE_1G;
+	ib_attr->max_mr_size = BNXT_RE_MAX_MR_SIZE;
+	ib_attr->page_size_cap = BNXT_RE_PAGE_SIZE_4K;
 
 	ib_attr->vendor_id = rdev->en_dev->pdev->vendor;
 	ib_attr->vendor_part_id = rdev->en_dev->pdev->device;
@@ -174,9 +172,11 @@ int bnxt_re_query_device(struct ib_device *ibdev,
 	ib_attr->max_mr = dev_attr->max_mr;
 	ib_attr->max_pd = dev_attr->max_pd;
 	ib_attr->max_qp_rd_atom = dev_attr->max_qp_rd_atom;
-	ib_attr->max_qp_init_rd_atom = dev_attr->max_qp_rd_atom;
-	ib_attr->atomic_cap = IB_ATOMIC_HCA;
-	ib_attr->masked_atomic_cap = IB_ATOMIC_HCA;
+	ib_attr->max_qp_init_rd_atom = dev_attr->max_qp_init_rd_atom;
+	if (dev_attr->is_atomic) {
+		ib_attr->atomic_cap = IB_ATOMIC_HCA;
+		ib_attr->masked_atomic_cap = IB_ATOMIC_HCA;
+	}
 
 	ib_attr->max_ee_rd_atom = 0;
 	ib_attr->max_res_rd_atom = 0;
@@ -201,7 +201,7 @@ int bnxt_re_query_device(struct ib_device *ibdev,
 	ib_attr->max_fast_reg_page_list_len = MAX_PBL_LVL_1_PGS;
 
 	ib_attr->max_pkeys = 1;
-	ib_attr->local_ca_ack_delay = 0;
+	ib_attr->local_ca_ack_delay = BNXT_RE_DEFAULT_ACK_DELAY;
 	return 0;
 }
 
@@ -390,15 +390,17 @@ int bnxt_re_del_gid(struct ib_device *ibdev, u8 port_num,
 			return -EINVAL;
 		ctx->refcnt--;
 		if (!ctx->refcnt) {
-			rc = bnxt_qplib_del_sgid
-					(sgid_tbl,
-					 &sgid_tbl->tbl[ctx->idx], true);
-			if (rc)
+			rc = bnxt_qplib_del_sgid(sgid_tbl,
+						 &sgid_tbl->tbl[ctx->idx],
+						 true);
+			if (rc) {
 				dev_err(rdev_to_dev(rdev),
 					"Failed to remove GID: %#x", rc);
-			ctx_tbl = sgid_tbl->ctx;
-			ctx_tbl[ctx->idx] = NULL;
-			kfree(ctx);
+			} else {
+				ctx_tbl = sgid_tbl->ctx;
+				ctx_tbl[ctx->idx] = NULL;
+				kfree(ctx);
+			}
 		}
 	} else {
 		return -EINVAL;
@@ -588,10 +590,10 @@ static int bnxt_re_create_fence_mr(struct bnxt_re_pd *pd)
 
 	/* Create a fence MW only for kernel consumers */
 	mw = bnxt_re_alloc_mw(&pd->ib_pd, IB_MW_TYPE_1, NULL);
-	if (!mw) {
+	if (IS_ERR(mw)) {
 		dev_err(rdev_to_dev(rdev),
 			"Failed to create fence-MW for PD: %p\n", pd);
-		rc = -EINVAL;
+		rc = PTR_ERR(mw);
 		goto fail;
 	}
 	fence->mw = mw;
@@ -612,30 +614,13 @@ int bnxt_re_dealloc_pd(struct ib_pd *ib_pd)
 	int rc;
 
 	bnxt_re_destroy_fence_mr(pd);
-	if (ib_pd->uobject && pd->dpi.dbr) {
-		struct ib_ucontext *ib_uctx = ib_pd->uobject->context;
-		struct bnxt_re_ucontext *ucntx;
 
-		/* Free DPI only if this is the first PD allocated by the
-		 * application and mark the context dpi as NULL
-		 */
-		ucntx = container_of(ib_uctx, struct bnxt_re_ucontext, ib_uctx);
-
-		rc = bnxt_qplib_dealloc_dpi(&rdev->qplib_res,
-					    &rdev->qplib_res.dpi_tbl,
-					    &pd->dpi);
+	if (pd->qplib_pd.id) {
+		rc = bnxt_qplib_dealloc_pd(&rdev->qplib_res,
+					   &rdev->qplib_res.pd_tbl,
+					   &pd->qplib_pd);
 		if (rc)
-			dev_err(rdev_to_dev(rdev), "Failed to deallocate HW DPI");
-			/* Don't fail, continue*/
-		ucntx->dpi = NULL;
-	}
-
-	rc = bnxt_qplib_dealloc_pd(&rdev->qplib_res,
-				   &rdev->qplib_res.pd_tbl,
-				   &pd->qplib_pd);
-	if (rc) {
-		dev_err(rdev_to_dev(rdev), "Failed to deallocate HW PD");
-		return rc;
+			dev_err(rdev_to_dev(rdev), "Failed to deallocate HW PD");
 	}
 
 	kfree(pd);
@@ -667,23 +652,22 @@ struct ib_pd *bnxt_re_alloc_pd(struct ib_device *ibdev,
 	if (udata) {
 		struct bnxt_re_pd_resp resp;
 
-		if (!ucntx->dpi) {
+		if (!ucntx->dpi.dbr) {
 			/* Allocate DPI in alloc_pd to avoid failing of
 			 * ibv_devinfo and family of application when DPIs
 			 * are depleted.
 			 */
 			if (bnxt_qplib_alloc_dpi(&rdev->qplib_res.dpi_tbl,
-						 &pd->dpi, ucntx)) {
+						 &ucntx->dpi, ucntx)) {
 				rc = -ENOMEM;
 				goto dbfail;
 			}
-			ucntx->dpi = &pd->dpi;
 		}
 
 		resp.pdid = pd->qplib_pd.id;
 		/* Still allow mapping this DBR to the new user PD. */
-		resp.dpi = ucntx->dpi->dpi;
-		resp.dbr = (u64)ucntx->dpi->umdbr;
+		resp.dpi = ucntx->dpi.dpi;
+		resp.dbr = (u64)ucntx->dpi.umdbr;
 
 		rc = ib_copy_to_udata(udata, &resp, sizeof(resp));
 		if (rc) {
@@ -960,7 +944,7 @@ static int bnxt_re_init_user_qp(struct bnxt_re_dev *rdev, struct bnxt_re_pd *pd,
 		qplib_qp->rq.nmap = umem->nmap;
 	}
 
-	qplib_qp->dpi = cntx->dpi;
+	qplib_qp->dpi = &cntx->dpi;
 	return 0;
 rqfail:
 	ib_umem_release(qp->sumem);
@@ -1530,13 +1514,24 @@ int bnxt_re_modify_qp(struct ib_qp *ib_qp, struct ib_qp_attr *qp_attr,
 	if (qp_attr_mask & IB_QP_MAX_QP_RD_ATOMIC) {
 		qp->qplib_qp.modify_flags |=
 				CMDQ_MODIFY_QP_MODIFY_MASK_MAX_RD_ATOMIC;
-		qp->qplib_qp.max_rd_atomic = qp_attr->max_rd_atomic;
+		/* Cap the max_rd_atomic to device max */
+		qp->qplib_qp.max_rd_atomic = min_t(u32, qp_attr->max_rd_atomic,
+						   dev_attr->max_qp_rd_atom);
 	}
 	if (qp_attr_mask & IB_QP_SQ_PSN) {
 		qp->qplib_qp.modify_flags |= CMDQ_MODIFY_QP_MODIFY_MASK_SQ_PSN;
 		qp->qplib_qp.sq.psn = qp_attr->sq_psn;
 	}
 	if (qp_attr_mask & IB_QP_MAX_DEST_RD_ATOMIC) {
+		if (qp_attr->max_dest_rd_atomic >
+		    dev_attr->max_qp_init_rd_atom) {
+			dev_err(rdev_to_dev(rdev),
+				"max_dest_rd_atomic requested%d is > dev_max%d",
+				qp_attr->max_dest_rd_atomic,
+				dev_attr->max_qp_init_rd_atom);
+			return -EINVAL;
+		}
+
 		qp->qplib_qp.modify_flags |=
 				CMDQ_MODIFY_QP_MODIFY_MASK_MAX_DEST_RD_ATOMIC;
 		qp->qplib_qp.max_dest_rd_atomic = qp_attr->max_dest_rd_atomic;
@@ -2403,7 +2398,7 @@ struct ib_cq *bnxt_re_create_cq(struct ib_device *ibdev,
 		}
 		cq->qplib_cq.sghead = cq->umem->sg_head.sgl;
 		cq->qplib_cq.nmap = cq->umem->nmap;
-		cq->qplib_cq.dpi = uctx->dpi;
+		cq->qplib_cq.dpi = &uctx->dpi;
 	} else {
 		cq->max_cql = min_t(u32, entries, MAX_CQL_PER_POLL);
 		cq->cql = kcalloc(cq->max_cql, sizeof(struct bnxt_qplib_cqe),
@@ -2905,6 +2900,7 @@ int bnxt_re_poll_cq(struct ib_cq *ib_cq, int num_entries, struct ib_wc *wc)
 
 	spin_lock_irqsave(&cq->cq_lock, flags);
 	budget = min_t(u32, num_entries, cq->max_cql);
+	num_entries = budget;
 	if (!cq->cql) {
 		dev_err(rdev_to_dev(cq->rdev), "POLL CQ : no CQL to use");
 		goto exit;
@@ -3031,6 +3027,11 @@ int bnxt_re_req_notify_cq(struct ib_cq *ib_cq,
 	else if (ib_cqn_flags & IB_CQ_SOLICITED)
 		type = DBR_DBR_TYPE_CQ_ARMSE;
 
+	/* Poll to see if there are missed events */
+	if ((ib_cqn_flags & IB_CQ_REPORT_MISSED_EVENTS) &&
+	    !(bnxt_qplib_is_cq_empty(&cq->qplib_cq)))
+		return 1;
+
 	bnxt_qplib_req_notify_cq(&cq->qplib_cq, type);
 
 	return 0;
@@ -3245,6 +3246,12 @@ struct ib_mr *bnxt_re_reg_user_mr(struct ib_pd *ib_pd, u64 start, u64 length,
 	struct scatterlist *sg;
 	int entry;
 
+	if (length > BNXT_RE_MAX_MR_SIZE) {
+		dev_err(rdev_to_dev(rdev), "MR Size: %lld > Max supported:%ld\n",
+			length, BNXT_RE_MAX_MR_SIZE);
+		return ERR_PTR(-ENOMEM);
+	}
+
 	mr = kzalloc(sizeof(*mr), GFP_KERNEL);
 	if (!mr)
 		return ERR_PTR(-ENOMEM);
@@ -3388,8 +3395,26 @@ int bnxt_re_dealloc_ucontext(struct ib_ucontext *ib_uctx)
 	struct bnxt_re_ucontext *uctx = container_of(ib_uctx,
 						   struct bnxt_re_ucontext,
 						   ib_uctx);
+
+	struct bnxt_re_dev *rdev = uctx->rdev;
+	int rc = 0;
+
 	if (uctx->shpg)
 		free_page((unsigned long)uctx->shpg);
+
+	if (uctx->dpi.dbr) {
+		/* Free DPI only if this is the first PD allocated by the
+		 * application and mark the context dpi as NULL
+		 */
+		rc = bnxt_qplib_dealloc_dpi(&rdev->qplib_res,
+					    &rdev->qplib_res.dpi_tbl,
+					    &uctx->dpi);
+		if (rc)
+			dev_err(rdev_to_dev(rdev), "Deallocte HW DPI failed!");
+			/* Don't fail, continue*/
+		uctx->dpi.dbr = NULL;
+	}
+
 	kfree(uctx);
 	return 0;
 }
diff --git a/drivers/infiniband/hw/bnxt_re/ib_verbs.h b/drivers/infiniband/hw/bnxt_re/ib_verbs.h
index 6c160f6a5398..a0bb7e33d7ca 100644
--- a/drivers/infiniband/hw/bnxt_re/ib_verbs.h
+++ b/drivers/infiniband/hw/bnxt_re/ib_verbs.h
@@ -59,7 +59,6 @@ struct bnxt_re_pd {
 	struct bnxt_re_dev	*rdev;
 	struct ib_pd		ib_pd;
 	struct bnxt_qplib_pd	qplib_pd;
-	struct bnxt_qplib_dpi	dpi;
 	struct bnxt_re_fence_data fence;
 };
 
@@ -127,7 +126,7 @@ struct bnxt_re_mw {
 struct bnxt_re_ucontext {
 	struct bnxt_re_dev	*rdev;
 	struct ib_ucontext	ib_uctx;
-	struct bnxt_qplib_dpi	*dpi;
+	struct bnxt_qplib_dpi	dpi;
 	void			*shpg;
 	spinlock_t		sh_lock;	/* protect shpg */
 };
diff --git a/drivers/infiniband/hw/bnxt_re/main.c b/drivers/infiniband/hw/bnxt_re/main.c
index 1fce5e73216b..ceae2d92fb08 100644
--- a/drivers/infiniband/hw/bnxt_re/main.c
+++ b/drivers/infiniband/hw/bnxt_re/main.c
@@ -333,6 +333,7 @@ static int bnxt_re_net_stats_ctx_alloc(struct bnxt_re_dev *rdev,
 	bnxt_re_init_hwrm_hdr(rdev, (void *)&req, HWRM_STAT_CTX_ALLOC, -1, -1);
 	req.update_period_ms = cpu_to_le32(1000);
 	req.stats_dma_addr = cpu_to_le64(dma_map);
+	req.stat_ctx_flags = STAT_CTX_ALLOC_REQ_STAT_CTX_FLAGS_ROCE;
 	bnxt_re_fill_fw_msg(&fw_msg, (void *)&req, sizeof(req), (void *)&resp,
 			    sizeof(resp), DFLT_HWRM_CMD_TIMEOUT);
 	rc = en_dev->en_ops->bnxt_send_fw_msg(en_dev, BNXT_ROCE_ULP, &fw_msg);
diff --git a/drivers/infiniband/hw/bnxt_re/qplib_fp.c b/drivers/infiniband/hw/bnxt_re/qplib_fp.c
index f05500bcdcf1..9af1514e5944 100644
--- a/drivers/infiniband/hw/bnxt_re/qplib_fp.c
+++ b/drivers/infiniband/hw/bnxt_re/qplib_fp.c
@@ -1128,6 +1128,11 @@ int bnxt_qplib_post_send(struct bnxt_qplib_qp *qp,
 		}
 		/* Each SGE entry = 1 WQE size16 */
 		wqe_size16 = wqe->num_sge;
+		/* HW requires wqe size has room for atleast one SGE even if
+		 * none was supplied by ULP
+		 */
+		if (!wqe->num_sge)
+			wqe_size16++;
 	}
 
 	/* Specifics */
@@ -1364,6 +1369,11 @@ int bnxt_qplib_post_recv(struct bnxt_qplib_qp *qp,
 	rqe->flags = wqe->flags;
 	rqe->wqe_size = wqe->num_sge +
 			((offsetof(typeof(*rqe), data) + 15) >> 4);
+	/* HW requires wqe size has room for atleast one SGE even if none
+	 * was supplied by ULP
+	 */
+	if (!wqe->num_sge)
+		rqe->wqe_size++;
 
 	/* Supply the rqe->wr_id index to the wr_id_tbl for now */
 	rqe->wr_id[0] = cpu_to_le32(sw_prod);
@@ -1885,6 +1895,25 @@ flush_rq:
 	return rc;
 }
 
+bool bnxt_qplib_is_cq_empty(struct bnxt_qplib_cq *cq)
+{
+	struct cq_base *hw_cqe, **hw_cqe_ptr;
+	unsigned long flags;
+	u32 sw_cons, raw_cons;
+	bool rc = true;
+
+	spin_lock_irqsave(&cq->hwq.lock, flags);
+	raw_cons = cq->hwq.cons;
+	sw_cons = HWQ_CMP(raw_cons, &cq->hwq);
+	hw_cqe_ptr = (struct cq_base **)cq->hwq.pbl_ptr;
+	hw_cqe = &hw_cqe_ptr[CQE_PG(sw_cons)][CQE_IDX(sw_cons)];
+
+	 /* Check for Valid bit. If the CQE is valid, return false */
+	rc = !CQE_CMP_VALID(hw_cqe, raw_cons, cq->hwq.max_elements);
+	spin_unlock_irqrestore(&cq->hwq.lock, flags);
+	return rc;
+}
+
 static int bnxt_qplib_cq_process_res_raweth_qp1(struct bnxt_qplib_cq *cq,
 						struct cq_res_raweth_qp1 *hwcqe,
 						struct bnxt_qplib_cqe **pcqe,
diff --git a/drivers/infiniband/hw/bnxt_re/qplib_fp.h b/drivers/infiniband/hw/bnxt_re/qplib_fp.h
index 36b7b7db0e3f..19176e06c98a 100644
--- a/drivers/infiniband/hw/bnxt_re/qplib_fp.h
+++ b/drivers/infiniband/hw/bnxt_re/qplib_fp.h
@@ -449,6 +449,7 @@ int bnxt_qplib_create_cq(struct bnxt_qplib_res *res, struct bnxt_qplib_cq *cq);
 int bnxt_qplib_destroy_cq(struct bnxt_qplib_res *res, struct bnxt_qplib_cq *cq);
 int bnxt_qplib_poll_cq(struct bnxt_qplib_cq *cq, struct bnxt_qplib_cqe *cqe,
 		       int num, struct bnxt_qplib_qp **qp);
+bool bnxt_qplib_is_cq_empty(struct bnxt_qplib_cq *cq);
 void bnxt_qplib_req_notify_cq(struct bnxt_qplib_cq *cq, u32 arm_type);
 void bnxt_qplib_free_nq(struct bnxt_qplib_nq *nq);
 int bnxt_qplib_alloc_nq(struct pci_dev *pdev, struct bnxt_qplib_nq *nq);
diff --git a/drivers/infiniband/hw/bnxt_re/qplib_sp.c b/drivers/infiniband/hw/bnxt_re/qplib_sp.c
index fde18cf0e406..ef91ab786dd4 100644
--- a/drivers/infiniband/hw/bnxt_re/qplib_sp.c
+++ b/drivers/infiniband/hw/bnxt_re/qplib_sp.c
@@ -51,6 +51,19 @@ const struct bnxt_qplib_gid bnxt_qplib_gid_zero = {{ 0, 0, 0, 0, 0, 0, 0, 0,
 						     0, 0, 0, 0, 0, 0, 0, 0 } };
 
 /* Device */
+
+static bool bnxt_qplib_is_atomic_cap(struct bnxt_qplib_rcfw *rcfw)
+{
+	int rc;
+	u16 pcie_ctl2;
+
+	rc = pcie_capability_read_word(rcfw->pdev, PCI_EXP_DEVCTL2,
+				       &pcie_ctl2);
+	if (rc)
+		return false;
+	return !!(pcie_ctl2 & PCI_EXP_DEVCTL2_ATOMIC_REQ);
+}
+
 int bnxt_qplib_get_dev_attr(struct bnxt_qplib_rcfw *rcfw,
 			    struct bnxt_qplib_dev_attr *attr)
 {
@@ -81,6 +94,8 @@ int bnxt_qplib_get_dev_attr(struct bnxt_qplib_rcfw *rcfw,
 
 	/* Extract the context from the side buffer */
 	attr->max_qp = le32_to_cpu(sb->max_qp);
+	/* max_qp value reported by FW for PF doesn't include the QP1 for PF */
+	attr->max_qp += 1;
 	attr->max_qp_rd_atom =
 		sb->max_qp_rd_atom > BNXT_QPLIB_MAX_OUT_RD_ATOM ?
 		BNXT_QPLIB_MAX_OUT_RD_ATOM : sb->max_qp_rd_atom;
@@ -129,6 +144,7 @@ int bnxt_qplib_get_dev_attr(struct bnxt_qplib_rcfw *rcfw,
 		attr->tqm_alloc_reqs[i * 4 + 3] = *(++tqm_alloc);
 	}
 
+	attr->is_atomic = bnxt_qplib_is_atomic_cap(rcfw);
 bail:
 	bnxt_qplib_rcfw_free_sbuf(rcfw, sbuf);
 	return rc;
diff --git a/drivers/infiniband/hw/bnxt_re/qplib_sp.h b/drivers/infiniband/hw/bnxt_re/qplib_sp.h
index a543f959098b..2ce7e2a32cf0 100644
--- a/drivers/infiniband/hw/bnxt_re/qplib_sp.h
+++ b/drivers/infiniband/hw/bnxt_re/qplib_sp.h
@@ -42,6 +42,8 @@
 
 #define BNXT_QPLIB_RESERVED_QP_WRS	128
 
+#define PCI_EXP_DEVCTL2_ATOMIC_REQ      0x0040
+
 struct bnxt_qplib_dev_attr {
 	char				fw_ver[32];
 	u16				max_sgid;
@@ -70,6 +72,7 @@ struct bnxt_qplib_dev_attr {
 	u32				max_inline_data;
 	u32				l2_db_size;
 	u8				tqm_alloc_reqs[MAX_TQM_ALLOC_REQ];
+	bool				is_atomic;
 };
 
 struct bnxt_qplib_pd {
diff --git a/drivers/infiniband/hw/cxgb3/iwch_provider.c b/drivers/infiniband/hw/cxgb3/iwch_provider.c
index 29d30744d6c9..0cd0c1fa27d4 100644
--- a/drivers/infiniband/hw/cxgb3/iwch_provider.c
+++ b/drivers/infiniband/hw/cxgb3/iwch_provider.c
@@ -718,7 +718,7 @@ static struct ib_mr *iwch_alloc_mr(struct ib_pd *pd,
 	struct iwch_mr *mhp;
 	u32 mmid;
 	u32 stag = 0;
-	int ret = 0;
+	int ret = -ENOMEM;
 
 	if (mr_type != IB_MR_TYPE_MEM_REG ||
 	    max_num_sg > T3_MAX_FASTREG_DEPTH)
@@ -731,10 +731,8 @@ static struct ib_mr *iwch_alloc_mr(struct ib_pd *pd,
 		goto err;
 
 	mhp->pages = kcalloc(max_num_sg, sizeof(u64), GFP_KERNEL);
-	if (!mhp->pages) {
-		ret = -ENOMEM;
+	if (!mhp->pages)
 		goto pl_err;
-	}
 
 	mhp->rhp = rhp;
 	ret = iwch_alloc_pbl(mhp, max_num_sg);
@@ -751,7 +749,8 @@ static struct ib_mr *iwch_alloc_mr(struct ib_pd *pd,
 	mhp->attr.state = 1;
 	mmid = (stag) >> 8;
 	mhp->ibmr.rkey = mhp->ibmr.lkey = stag;
-	if (insert_handle(rhp, &rhp->mmidr, mhp, mmid))
+	ret = insert_handle(rhp, &rhp->mmidr, mhp, mmid);
+	if (ret)
 		goto err3;
 
 	pr_debug("%s mmid 0x%x mhp %p stag 0x%x\n", __func__, mmid, mhp, stag);
diff --git a/drivers/infiniband/hw/cxgb4/cq.c b/drivers/infiniband/hw/cxgb4/cq.c
index e16fcaf6b5a3..be07da1997e6 100644
--- a/drivers/infiniband/hw/cxgb4/cq.c
+++ b/drivers/infiniband/hw/cxgb4/cq.c
@@ -963,6 +963,7 @@ struct ib_cq *c4iw_create_cq(struct ib_device *ibdev,
 		goto err3;
 
 	if (ucontext) {
+		ret = -ENOMEM;
 		mm = kmalloc(sizeof *mm, GFP_KERNEL);
 		if (!mm)
 			goto err4;
diff --git a/drivers/infiniband/hw/cxgb4/mem.c b/drivers/infiniband/hw/cxgb4/mem.c
index 5332f06b99ba..c2fba76becd4 100644
--- a/drivers/infiniband/hw/cxgb4/mem.c
+++ b/drivers/infiniband/hw/cxgb4/mem.c
@@ -661,7 +661,7 @@ struct ib_mr *c4iw_alloc_mr(struct ib_pd *pd,
 	rhp = php->rhp;
 
 	if (mr_type != IB_MR_TYPE_MEM_REG ||
-	    max_num_sg > t4_max_fr_depth(&rhp->rdev.lldi.ulptx_memwrite_dsgl &&
+	    max_num_sg > t4_max_fr_depth(rhp->rdev.lldi.ulptx_memwrite_dsgl &&
 					 use_dsgl))
 		return ERR_PTR(-EINVAL);
 
diff --git a/drivers/infiniband/hw/cxgb4/qp.c b/drivers/infiniband/hw/cxgb4/qp.c
index bfc77596acbe..cb7fc0d35d1d 100644
--- a/drivers/infiniband/hw/cxgb4/qp.c
+++ b/drivers/infiniband/hw/cxgb4/qp.c
@@ -569,7 +569,7 @@ static int build_rdma_read(union t4_wr *wqe, struct ib_send_wr *wr, u8 *len16)
 {
 	if (wr->num_sge > 1)
 		return -EINVAL;
-	if (wr->num_sge) {
+	if (wr->num_sge && wr->sg_list[0].length) {
 		wqe->read.stag_src = cpu_to_be32(rdma_wr(wr)->rkey);
 		wqe->read.to_src_hi = cpu_to_be32((u32)(rdma_wr(wr)->remote_addr
 							>> 32));
diff --git a/drivers/infiniband/hw/hfi1/chip.c b/drivers/infiniband/hw/hfi1/chip.c
index 2ba00b89df6a..94b54850ec75 100644
--- a/drivers/infiniband/hw/hfi1/chip.c
+++ b/drivers/infiniband/hw/hfi1/chip.c
@@ -12847,7 +12847,12 @@ static void remap_intr(struct hfi1_devdata *dd, int isrc, int msix_intr)
 	/* clear from the handled mask of the general interrupt */
 	m = isrc / 64;
 	n = isrc % 64;
-	dd->gi_mask[m] &= ~((u64)1 << n);
+	if (likely(m < CCE_NUM_INT_CSRS)) {
+		dd->gi_mask[m] &= ~((u64)1 << n);
+	} else {
+		dd_dev_err(dd, "remap interrupt err\n");
+		return;
+	}
 
 	/* direct the chip source to the given MSI-X interrupt */
 	m = isrc / 8;
diff --git a/drivers/infiniband/hw/hfi1/qp.c b/drivers/infiniband/hw/hfi1/qp.c
index 650305cc0373..1a7af9f60c13 100644
--- a/drivers/infiniband/hw/hfi1/qp.c
+++ b/drivers/infiniband/hw/hfi1/qp.c
@@ -647,18 +647,17 @@ void qp_iter_print(struct seq_file *s, struct qp_iter *iter)
 		   qp->pid);
 }
 
-void *qp_priv_alloc(struct rvt_dev_info *rdi, struct rvt_qp *qp,
-		    gfp_t gfp)
+void *qp_priv_alloc(struct rvt_dev_info *rdi, struct rvt_qp *qp)
 {
 	struct hfi1_qp_priv *priv;
 
-	priv = kzalloc_node(sizeof(*priv), gfp, rdi->dparms.node);
+	priv = kzalloc_node(sizeof(*priv), GFP_KERNEL, rdi->dparms.node);
 	if (!priv)
 		return ERR_PTR(-ENOMEM);
 
 	priv->owner = qp;
 
-	priv->s_ahg = kzalloc_node(sizeof(*priv->s_ahg), gfp,
+	priv->s_ahg = kzalloc_node(sizeof(*priv->s_ahg), GFP_KERNEL,
 				   rdi->dparms.node);
 	if (!priv->s_ahg) {
 		kfree(priv);
diff --git a/drivers/infiniband/hw/hfi1/qp.h b/drivers/infiniband/hw/hfi1/qp.h
index 1eb9cd7b8c19..6fe542b6a927 100644
--- a/drivers/infiniband/hw/hfi1/qp.h
+++ b/drivers/infiniband/hw/hfi1/qp.h
@@ -123,8 +123,7 @@ void hfi1_migrate_qp(struct rvt_qp *qp);
 /*
  * Functions provided by hfi1 driver for rdmavt to use
  */
-void *qp_priv_alloc(struct rvt_dev_info *rdi, struct rvt_qp *qp,
-		    gfp_t gfp);
+void *qp_priv_alloc(struct rvt_dev_info *rdi, struct rvt_qp *qp);
 void qp_priv_free(struct rvt_dev_info *rdi, struct rvt_qp *qp);
 unsigned free_all_qps(struct rvt_dev_info *rdi);
 void notify_qp_reset(struct rvt_qp *qp);
diff --git a/drivers/infiniband/hw/hns/hns_roce_ah.c b/drivers/infiniband/hw/hns/hns_roce_ah.c
index f78a733a63ec..d545302b8ef8 100644
--- a/drivers/infiniband/hw/hns/hns_roce_ah.c
+++ b/drivers/infiniband/hw/hns/hns_roce_ah.c
@@ -64,8 +64,10 @@ struct ib_ah *hns_roce_create_ah(struct ib_pd *ibpd,
 	} else {
 		u8 *dmac = rdma_ah_retrieve_dmac(ah_attr);
 
-		if (!dmac)
+		if (!dmac) {
+			kfree(ah);
 			return ERR_PTR(-EINVAL);
+		}
 		memcpy(ah->av.mac, dmac, ETH_ALEN);
 	}
 
diff --git a/drivers/infiniband/hw/hns/hns_roce_hw_v1.c b/drivers/infiniband/hw/hns/hns_roce_hw_v1.c
index 37d5d29597a4..2540b65e242c 100644
--- a/drivers/infiniband/hw/hns/hns_roce_hw_v1.c
+++ b/drivers/infiniband/hw/hns/hns_roce_hw_v1.c
@@ -228,14 +228,14 @@ int hns_roce_v1_post_send(struct ib_qp *ibqp, struct ib_send_wr *wr,
 			switch (wr->opcode) {
 			case IB_WR_RDMA_READ:
 				ps_opcode = HNS_ROCE_WQE_OPCODE_RDMA_READ;
-				set_raddr_seg(wqe, atomic_wr(wr)->remote_addr,
-					      atomic_wr(wr)->rkey);
+				set_raddr_seg(wqe,  rdma_wr(wr)->remote_addr,
+					       rdma_wr(wr)->rkey);
 				break;
 			case IB_WR_RDMA_WRITE:
 			case IB_WR_RDMA_WRITE_WITH_IMM:
 				ps_opcode = HNS_ROCE_WQE_OPCODE_RDMA_WRITE;
-				set_raddr_seg(wqe, atomic_wr(wr)->remote_addr,
-					      atomic_wr(wr)->rkey);
+				set_raddr_seg(wqe,  rdma_wr(wr)->remote_addr,
+					      rdma_wr(wr)->rkey);
 				break;
 			case IB_WR_SEND:
 			case IB_WR_SEND_WITH_INV:
@@ -661,9 +661,11 @@ static int hns_roce_v1_rsv_lp_qp(struct hns_roce_dev *hr_dev)
 	union ib_gid dgid;
 	u64 subnet_prefix;
 	int attr_mask = 0;
-	int i;
+	int i, j;
 	int ret;
+	u8 queue_en[HNS_ROCE_V1_RESV_QP] = { 0 };
 	u8 phy_port;
+	u8 port = 0;
 	u8 sl;
 
 	priv = (struct hns_roce_v1_priv *)hr_dev->hw->priv;
@@ -709,27 +711,35 @@ static int hns_roce_v1_rsv_lp_qp(struct hns_roce_dev *hr_dev)
 	attr.rnr_retry		= 7;
 	attr.timeout		= 0x12;
 	attr.path_mtu		= IB_MTU_256;
+	attr.ah_attr.type	= RDMA_AH_ATTR_TYPE_ROCE;
 	rdma_ah_set_grh(&attr.ah_attr, NULL, 0, 0, 1, 0);
 	rdma_ah_set_static_rate(&attr.ah_attr, 3);
 
 	subnet_prefix = cpu_to_be64(0xfe80000000000000LL);
 	for (i = 0; i < HNS_ROCE_V1_RESV_QP; i++) {
+		phy_port = (i >= HNS_ROCE_MAX_PORTS) ? (i - 2) :
+				(i % HNS_ROCE_MAX_PORTS);
+		sl = i / HNS_ROCE_MAX_PORTS;
+
+		for (j = 0; j < caps->num_ports; j++) {
+			if (hr_dev->iboe.phy_port[j] == phy_port) {
+				queue_en[i] = 1;
+				port = j;
+				break;
+			}
+		}
+
+		if (!queue_en[i])
+			continue;
+
 		free_mr->mr_free_qp[i] = hns_roce_v1_create_lp_qp(hr_dev, pd);
-		if (IS_ERR(free_mr->mr_free_qp[i])) {
+		if (!free_mr->mr_free_qp[i]) {
 			dev_err(dev, "Create loop qp failed!\n");
 			goto create_lp_qp_failed;
 		}
 		hr_qp = free_mr->mr_free_qp[i];
 
-		sl = i / caps->num_ports;
-
-		if (caps->num_ports == HNS_ROCE_MAX_PORTS)
-			phy_port = (i >= HNS_ROCE_MAX_PORTS) ? (i - 2) :
-				(i % caps->num_ports);
-		else
-			phy_port = i % caps->num_ports;
-
-		hr_qp->port		= phy_port + 1;
+		hr_qp->port		= port;
 		hr_qp->phy_port		= phy_port;
 		hr_qp->ibqp.qp_type	= IB_QPT_RC;
 		hr_qp->ibqp.device	= &hr_dev->ib_dev;
@@ -739,23 +749,22 @@ static int hns_roce_v1_rsv_lp_qp(struct hns_roce_dev *hr_dev)
 		hr_qp->ibqp.recv_cq	= cq;
 		hr_qp->ibqp.send_cq	= cq;
 
-		rdma_ah_set_port_num(&attr.ah_attr, phy_port + 1);
-		rdma_ah_set_sl(&attr.ah_attr, phy_port + 1);
-		attr.port_num		= phy_port + 1;
+		rdma_ah_set_port_num(&attr.ah_attr, port + 1);
+		rdma_ah_set_sl(&attr.ah_attr, sl);
+		attr.port_num		= port + 1;
 
 		attr.dest_qp_num	= hr_qp->qpn;
 		memcpy(rdma_ah_retrieve_dmac(&attr.ah_attr),
-		       hr_dev->dev_addr[phy_port],
+		       hr_dev->dev_addr[port],
 		       MAC_ADDR_OCTET_NUM);
 
 		memcpy(&dgid.raw, &subnet_prefix, sizeof(u64));
-		memcpy(&dgid.raw[8], hr_dev->dev_addr[phy_port], 3);
-		memcpy(&dgid.raw[13], hr_dev->dev_addr[phy_port] + 3, 3);
+		memcpy(&dgid.raw[8], hr_dev->dev_addr[port], 3);
+		memcpy(&dgid.raw[13], hr_dev->dev_addr[port] + 3, 3);
 		dgid.raw[11] = 0xff;
 		dgid.raw[12] = 0xfe;
 		dgid.raw[8] ^= 2;
 		rdma_ah_set_dgid_raw(&attr.ah_attr, dgid.raw);
-		attr_mask |= IB_QP_PORT;
 
 		ret = hr_dev->hw->modify_qp(&hr_qp->ibqp, &attr, attr_mask,
 					    IB_QPS_RESET, IB_QPS_INIT);
@@ -812,6 +821,9 @@ static void hns_roce_v1_release_lp_qp(struct hns_roce_dev *hr_dev)
 
 	for (i = 0; i < HNS_ROCE_V1_RESV_QP; i++) {
 		hr_qp = free_mr->mr_free_qp[i];
+		if (!hr_qp)
+			continue;
+
 		ret = hns_roce_v1_destroy_qp(&hr_qp->ibqp);
 		if (ret)
 			dev_err(dev, "Destroy qp %d for mr free failed(%d)!\n",
@@ -963,7 +975,7 @@ static void hns_roce_v1_mr_free_work_fn(struct work_struct *work)
 		msecs_to_jiffies(HNS_ROCE_V1_FREE_MR_TIMEOUT_MSECS) + jiffies;
 	int i;
 	int ret;
-	int ne;
+	int ne = 0;
 
 	mr_work = container_of(work, struct hns_roce_mr_free_work, work);
 	hr_mr = (struct hns_roce_mr *)mr_work->mr;
@@ -976,6 +988,10 @@ static void hns_roce_v1_mr_free_work_fn(struct work_struct *work)
 
 	for (i = 0; i < HNS_ROCE_V1_RESV_QP; i++) {
 		hr_qp = free_mr->mr_free_qp[i];
+		if (!hr_qp)
+			continue;
+		ne++;
+
 		ret = hns_roce_v1_send_lp_wqe(hr_qp);
 		if (ret) {
 			dev_err(dev,
@@ -985,7 +1001,6 @@ static void hns_roce_v1_mr_free_work_fn(struct work_struct *work)
 		}
 	}
 
-	ne = HNS_ROCE_V1_RESV_QP;
 	do {
 		ret = hns_roce_v1_poll_cq(&mr_free_cq->ib_cq, ne, wc);
 		if (ret < 0) {
@@ -995,7 +1010,8 @@ static void hns_roce_v1_mr_free_work_fn(struct work_struct *work)
 			goto free_work;
 		}
 		ne -= ret;
-		msleep(HNS_ROCE_V1_FREE_MR_WAIT_VALUE);
+		usleep_range(HNS_ROCE_V1_FREE_MR_WAIT_VALUE * 1000,
+			     (1 + HNS_ROCE_V1_FREE_MR_WAIT_VALUE) * 1000);
 	} while (ne && time_before_eq(jiffies, end));
 
 	if (ne != 0)
@@ -2181,7 +2197,7 @@ static int hns_roce_v1_poll_one(struct hns_roce_cq *hr_cq,
 		}
 		wc->wr_id = wq->wrid[wq->tail & (wq->wqe_cnt - 1)];
 		++wq->tail;
-		} else {
+	} else {
 		/* RQ conrespond to CQE */
 		wc->byte_len = le32_to_cpu(cqe->byte_cnt);
 		opcode = roce_get_field(cqe->cqe_byte_4,
@@ -3533,10 +3549,12 @@ static int check_qp_db_process_status(struct hns_roce_dev *hr_dev,
 					old_cnt = roce_get_field(old_send,
 					ROCEE_SDB_SEND_PTR_SDB_SEND_PTR_M,
 					ROCEE_SDB_SEND_PTR_SDB_SEND_PTR_S);
-					if (cur_cnt - old_cnt > SDB_ST_CMP_VAL)
+					if (cur_cnt - old_cnt >
+					    SDB_ST_CMP_VAL) {
 						success_flags = 1;
-					else {
-					    send_ptr = roce_get_field(old_send,
+					} else {
+						send_ptr =
+							roce_get_field(old_send,
 					    ROCEE_SDB_SEND_PTR_SDB_SEND_PTR_M,
 					    ROCEE_SDB_SEND_PTR_SDB_SEND_PTR_S) +
 					    roce_get_field(sdb_retry_cnt,
@@ -3641,6 +3659,7 @@ static void hns_roce_v1_destroy_qp_work_fn(struct work_struct *work)
 	struct hns_roce_dev *hr_dev;
 	struct hns_roce_qp *hr_qp;
 	struct device *dev;
+	unsigned long qpn;
 	int ret;
 
 	qp_work_entry = container_of(work, struct hns_roce_qp_work, work);
@@ -3648,8 +3667,9 @@ static void hns_roce_v1_destroy_qp_work_fn(struct work_struct *work)
 	dev = &hr_dev->pdev->dev;
 	priv = (struct hns_roce_v1_priv *)hr_dev->hw->priv;
 	hr_qp = qp_work_entry->qp;
+	qpn = hr_qp->qpn;
 
-	dev_dbg(dev, "Schedule destroy QP(0x%lx) work.\n", hr_qp->qpn);
+	dev_dbg(dev, "Schedule destroy QP(0x%lx) work.\n", qpn);
 
 	qp_work_entry->sche_cnt++;
 
@@ -3660,7 +3680,7 @@ static void hns_roce_v1_destroy_qp_work_fn(struct work_struct *work)
 					 &qp_work_entry->db_wait_stage);
 	if (ret) {
 		dev_err(dev, "Check QP(0x%lx) db process status failed!\n",
-			hr_qp->qpn);
+			qpn);
 		return;
 	}
 
@@ -3674,7 +3694,7 @@ static void hns_roce_v1_destroy_qp_work_fn(struct work_struct *work)
 	ret = hns_roce_v1_modify_qp(&hr_qp->ibqp, NULL, 0, hr_qp->state,
 				    IB_QPS_RESET);
 	if (ret) {
-		dev_err(dev, "Modify QP(0x%lx) to RST failed!\n", hr_qp->qpn);
+		dev_err(dev, "Modify QP(0x%lx) to RST failed!\n", qpn);
 		return;
 	}
 
@@ -3683,14 +3703,14 @@ static void hns_roce_v1_destroy_qp_work_fn(struct work_struct *work)
 
 	if (hr_qp->ibqp.qp_type == IB_QPT_RC) {
 		/* RC QP, release QPN */
-		hns_roce_release_range_qp(hr_dev, hr_qp->qpn, 1);
+		hns_roce_release_range_qp(hr_dev, qpn, 1);
 		kfree(hr_qp);
 	} else
 		kfree(hr_to_hr_sqp(hr_qp));
 
 	kfree(qp_work_entry);
 
-	dev_dbg(dev, "Accomplished destroy QP(0x%lx) work.\n", hr_qp->qpn);
+	dev_dbg(dev, "Accomplished destroy QP(0x%lx) work.\n", qpn);
 }
 
 int hns_roce_v1_destroy_qp(struct ib_qp *ibqp)
diff --git a/drivers/infiniband/hw/hns/hns_roce_main.c b/drivers/infiniband/hw/hns/hns_roce_main.c
index c3b41f95e70a..d9777b662eba 100644
--- a/drivers/infiniband/hw/hns/hns_roce_main.c
+++ b/drivers/infiniband/hw/hns/hns_roce_main.c
@@ -125,8 +125,6 @@ static int handle_en_event(struct hns_roce_dev *hr_dev, u8 port,
 		return -ENODEV;
 	}
 
-	spin_lock_bh(&hr_dev->iboe.lock);
-
 	switch (event) {
 	case NETDEV_UP:
 	case NETDEV_CHANGE:
@@ -144,7 +142,6 @@ static int handle_en_event(struct hns_roce_dev *hr_dev, u8 port,
 		break;
 	}
 
-	spin_unlock_bh(&hr_dev->iboe.lock);
 	return 0;
 }
 
diff --git a/drivers/infiniband/hw/i40iw/i40iw.h b/drivers/infiniband/hw/i40iw/i40iw.h
index da2eb5a281fa..9b1566468744 100644
--- a/drivers/infiniband/hw/i40iw/i40iw.h
+++ b/drivers/infiniband/hw/i40iw/i40iw.h
@@ -527,6 +527,7 @@ enum i40iw_status_code i40iw_add_mac_addr(struct i40iw_device *iwdev,
 int i40iw_modify_qp(struct ib_qp *, struct ib_qp_attr *, int, struct ib_udata *);
 void i40iw_cq_wq_destroy(struct i40iw_device *iwdev, struct i40iw_sc_cq *cq);
 
+void i40iw_cleanup_pending_cqp_op(struct i40iw_device *iwdev);
 void i40iw_rem_pdusecount(struct i40iw_pd *iwpd, struct i40iw_device *iwdev);
 void i40iw_add_pdusecount(struct i40iw_pd *iwpd);
 void i40iw_rem_devusecount(struct i40iw_device *iwdev);
diff --git a/drivers/infiniband/hw/i40iw/i40iw_cm.c b/drivers/infiniband/hw/i40iw/i40iw_cm.c
index 6ae98aa7f74e..5a2fa743676c 100644
--- a/drivers/infiniband/hw/i40iw/i40iw_cm.c
+++ b/drivers/infiniband/hw/i40iw/i40iw_cm.c
@@ -3487,7 +3487,8 @@ static void i40iw_cm_disconn_true(struct i40iw_qp *iwqp)
 	if (((original_hw_tcp_state == I40IW_TCP_STATE_CLOSED) ||
 	     (original_hw_tcp_state == I40IW_TCP_STATE_TIME_WAIT) ||
 	     (last_ae == I40IW_AE_RDMAP_ROE_BAD_LLP_CLOSE) ||
-	     (last_ae == I40IW_AE_LLP_CONNECTION_RESET))) {
+	     (last_ae == I40IW_AE_LLP_CONNECTION_RESET) ||
+	      iwdev->reset)) {
 		issue_close = 1;
 		iwqp->cm_id = NULL;
 		if (!iwqp->flush_issued) {
@@ -4265,6 +4266,8 @@ void i40iw_cm_disconnect_all(struct i40iw_device *iwdev)
 		cm_node = container_of(list_node, struct i40iw_cm_node, connected_entry);
 		attr.qp_state = IB_QPS_ERR;
 		i40iw_modify_qp(&cm_node->iwqp->ibqp, &attr, IB_QP_STATE, NULL);
+		if (iwdev->reset)
+			i40iw_cm_disconn(cm_node->iwqp);
 		i40iw_rem_ref_cm_node(cm_node);
 	}
 }
diff --git a/drivers/infiniband/hw/i40iw/i40iw_ctrl.c b/drivers/infiniband/hw/i40iw/i40iw_ctrl.c
index a027e2072477..a49ff2eb6fb3 100644
--- a/drivers/infiniband/hw/i40iw/i40iw_ctrl.c
+++ b/drivers/infiniband/hw/i40iw/i40iw_ctrl.c
@@ -130,20 +130,32 @@ static enum i40iw_status_code i40iw_sc_parse_fpm_commit_buf(
 	u64 base = 0;
 	u32 i, j;
 	u32 k = 0;
-	u32 low;
 
 	/* copy base values in obj_info */
-	for (i = I40IW_HMC_IW_QP, j = 0;
-			i <= I40IW_HMC_IW_PBLE; i++, j += 8) {
+	for (i = I40IW_HMC_IW_QP, j = 0; i <= I40IW_HMC_IW_PBLE; i++, j += 8) {
+		if ((i == I40IW_HMC_IW_SRQ) ||
+			(i == I40IW_HMC_IW_FSIMC) ||
+			(i == I40IW_HMC_IW_FSIAV)) {
+			info[i].base = 0;
+			info[i].cnt = 0;
+			continue;
+		}
 		get_64bit_val(buf, j, &temp);
 		info[i].base = RS_64_1(temp, 32) * 512;
 		if (info[i].base > base) {
 			base = info[i].base;
 			k = i;
 		}
-		low = (u32)(temp);
-		if (low)
-			info[i].cnt = low;
+		if (i == I40IW_HMC_IW_APBVT_ENTRY) {
+			info[i].cnt = 1;
+			continue;
+		}
+		if (i == I40IW_HMC_IW_QP)
+			info[i].cnt = (u32)RS_64(temp, I40IW_QUERY_FPM_MAX_QPS);
+		else if (i == I40IW_HMC_IW_CQ)
+			info[i].cnt = (u32)RS_64(temp, I40IW_QUERY_FPM_MAX_CQS);
+		else
+			info[i].cnt = (u32)(temp);
 	}
 	size = info[k].cnt * info[k].size + info[k].base;
 	if (size & 0x1FFFFF)
@@ -155,6 +167,31 @@ static enum i40iw_status_code i40iw_sc_parse_fpm_commit_buf(
 }
 
 /**
+ * i40iw_sc_decode_fpm_query() - Decode a 64 bit value into max count and size
+ * @buf: ptr to fpm query buffer
+ * @buf_idx: index into buf
+ * @info: ptr to i40iw_hmc_obj_info struct
+ * @rsrc_idx: resource index into info
+ *
+ * Decode a 64 bit value from fpm query buffer into max count and size
+ */
+static u64 i40iw_sc_decode_fpm_query(u64 *buf,
+					    u32 buf_idx,
+					    struct i40iw_hmc_obj_info *obj_info,
+					    u32 rsrc_idx)
+{
+	u64 temp;
+	u32 size;
+
+	get_64bit_val(buf, buf_idx, &temp);
+	obj_info[rsrc_idx].max_cnt = (u32)temp;
+	size = (u32)RS_64_1(temp, 32);
+	obj_info[rsrc_idx].size = LS_64_1(1, size);
+
+	return temp;
+}
+
+/**
  * i40iw_sc_parse_fpm_query_buf() - parses fpm query buffer
  * @buf: ptr to fpm query buffer
  * @info: ptr to i40iw_hmc_obj_info struct
@@ -168,9 +205,9 @@ static enum i40iw_status_code i40iw_sc_parse_fpm_query_buf(
 				struct i40iw_hmc_info *hmc_info,
 				struct i40iw_hmc_fpm_misc *hmc_fpm_misc)
 {
-	u64 temp;
 	struct i40iw_hmc_obj_info *obj_info;
-	u32 i, j, size;
+	u64 temp;
+	u32 size;
 	u16 max_pe_sds;
 
 	obj_info = hmc_info->hmc_obj;
@@ -185,41 +222,52 @@ static enum i40iw_status_code i40iw_sc_parse_fpm_query_buf(
 	hmc_fpm_misc->max_sds = max_pe_sds;
 	hmc_info->sd_table.sd_cnt = max_pe_sds + hmc_info->first_sd_index;
 
-	for (i = I40IW_HMC_IW_QP, j = 8;
-	     i <= I40IW_HMC_IW_ARP; i++, j += 8) {
-		get_64bit_val(buf, j, &temp);
-		if (i == I40IW_HMC_IW_QP)
-			obj_info[i].max_cnt = (u32)RS_64(temp, I40IW_QUERY_FPM_MAX_QPS);
-		else if (i == I40IW_HMC_IW_CQ)
-			obj_info[i].max_cnt = (u32)RS_64(temp, I40IW_QUERY_FPM_MAX_CQS);
-		else
-			obj_info[i].max_cnt = (u32)temp;
+	get_64bit_val(buf, 8, &temp);
+	obj_info[I40IW_HMC_IW_QP].max_cnt = (u32)RS_64(temp, I40IW_QUERY_FPM_MAX_QPS);
+	size = (u32)RS_64_1(temp, 32);
+	obj_info[I40IW_HMC_IW_QP].size = LS_64_1(1, size);
 
-		size = (u32)RS_64_1(temp, 32);
-		obj_info[i].size = ((u64)1 << size);
-	}
-	for (i = I40IW_HMC_IW_MR, j = 48;
-			i <= I40IW_HMC_IW_PBLE; i++, j += 8) {
-		get_64bit_val(buf, j, &temp);
-		obj_info[i].max_cnt = (u32)temp;
-		size = (u32)RS_64_1(temp, 32);
-		obj_info[i].size = LS_64_1(1, size);
-	}
+	get_64bit_val(buf, 16, &temp);
+	obj_info[I40IW_HMC_IW_CQ].max_cnt = (u32)RS_64(temp, I40IW_QUERY_FPM_MAX_CQS);
+	size = (u32)RS_64_1(temp, 32);
+	obj_info[I40IW_HMC_IW_CQ].size = LS_64_1(1, size);
+
+	i40iw_sc_decode_fpm_query(buf, 32, obj_info, I40IW_HMC_IW_HTE);
+	i40iw_sc_decode_fpm_query(buf, 40, obj_info, I40IW_HMC_IW_ARP);
+
+	obj_info[I40IW_HMC_IW_APBVT_ENTRY].size = 8192;
+	obj_info[I40IW_HMC_IW_APBVT_ENTRY].max_cnt = 1;
+
+	i40iw_sc_decode_fpm_query(buf, 48, obj_info, I40IW_HMC_IW_MR);
+	i40iw_sc_decode_fpm_query(buf, 56, obj_info, I40IW_HMC_IW_XF);
 
-	get_64bit_val(buf, 120, &temp);
-	hmc_fpm_misc->max_ceqs = (u8)RS_64(temp, I40IW_QUERY_FPM_MAX_CEQS);
-	get_64bit_val(buf, 120, &temp);
-	hmc_fpm_misc->ht_multiplier = RS_64(temp, I40IW_QUERY_FPM_HTMULTIPLIER);
-	get_64bit_val(buf, 120, &temp);
-	hmc_fpm_misc->timer_bucket = RS_64(temp, I40IW_QUERY_FPM_TIMERBUCKET);
 	get_64bit_val(buf, 64, &temp);
+	obj_info[I40IW_HMC_IW_XFFL].max_cnt = (u32)temp;
+	obj_info[I40IW_HMC_IW_XFFL].size = 4;
 	hmc_fpm_misc->xf_block_size = RS_64(temp, I40IW_QUERY_FPM_XFBLOCKSIZE);
 	if (!hmc_fpm_misc->xf_block_size)
 		return I40IW_ERR_INVALID_SIZE;
+
+	i40iw_sc_decode_fpm_query(buf, 72, obj_info, I40IW_HMC_IW_Q1);
+
 	get_64bit_val(buf, 80, &temp);
+	obj_info[I40IW_HMC_IW_Q1FL].max_cnt = (u32)temp;
+	obj_info[I40IW_HMC_IW_Q1FL].size = 4;
 	hmc_fpm_misc->q1_block_size = RS_64(temp, I40IW_QUERY_FPM_Q1BLOCKSIZE);
 	if (!hmc_fpm_misc->q1_block_size)
 		return I40IW_ERR_INVALID_SIZE;
+
+	i40iw_sc_decode_fpm_query(buf, 88, obj_info, I40IW_HMC_IW_TIMER);
+
+	get_64bit_val(buf, 112, &temp);
+	obj_info[I40IW_HMC_IW_PBLE].max_cnt = (u32)temp;
+	obj_info[I40IW_HMC_IW_PBLE].size = 8;
+
+	get_64bit_val(buf, 120, &temp);
+	hmc_fpm_misc->max_ceqs = (u8)RS_64(temp, I40IW_QUERY_FPM_MAX_CEQS);
+	hmc_fpm_misc->ht_multiplier = RS_64(temp, I40IW_QUERY_FPM_HTMULTIPLIER);
+	hmc_fpm_misc->timer_bucket = RS_64(temp, I40IW_QUERY_FPM_TIMERBUCKET);
+
 	return 0;
 }
 
@@ -1970,6 +2018,8 @@ static enum i40iw_status_code i40iw_sc_ccq_destroy(struct i40iw_sc_cq *ccq,
 		ret_code = i40iw_cqp_poll_registers(cqp, tail, 1000);
 	}
 
+	cqp->process_cqp_sds = i40iw_update_sds_noccq;
+
 	return ret_code;
 }
 
@@ -3390,13 +3440,6 @@ enum i40iw_status_code i40iw_sc_init_iw_hmc(struct i40iw_sc_dev *dev, u8 hmc_fn_
 		hmc_info->sd_table.sd_entry = virt_mem.va;
 	}
 
-	/* fill size of objects which are fixed */
-	hmc_info->hmc_obj[I40IW_HMC_IW_XFFL].size = 4;
-	hmc_info->hmc_obj[I40IW_HMC_IW_Q1FL].size = 4;
-	hmc_info->hmc_obj[I40IW_HMC_IW_PBLE].size = 8;
-	hmc_info->hmc_obj[I40IW_HMC_IW_APBVT_ENTRY].size = 8192;
-	hmc_info->hmc_obj[I40IW_HMC_IW_APBVT_ENTRY].max_cnt = 1;
-
 	return ret_code;
 }
 
@@ -4838,7 +4881,7 @@ void i40iw_vsi_stats_free(struct i40iw_sc_vsi *vsi)
 {
 	u8 fcn_id = vsi->fcn_id;
 
-	if ((vsi->stats_fcn_id_alloc) && (fcn_id != I40IW_INVALID_FCN_ID))
+	if (vsi->stats_fcn_id_alloc && fcn_id < I40IW_MAX_STATS_COUNT)
 		vsi->dev->fcn_id_array[fcn_id] = false;
 	i40iw_hw_stats_stop_timer(vsi);
 }
diff --git a/drivers/infiniband/hw/i40iw/i40iw_d.h b/drivers/infiniband/hw/i40iw/i40iw_d.h
index a39ac12b6a7e..2ebaadbed379 100644
--- a/drivers/infiniband/hw/i40iw/i40iw_d.h
+++ b/drivers/infiniband/hw/i40iw/i40iw_d.h
@@ -1507,8 +1507,8 @@ enum {
 	I40IW_CQ0_ALIGNMENT_MASK =		(256 - 1),
 	I40IW_HOST_CTX_ALIGNMENT_MASK =		(4 - 1),
 	I40IW_SHADOWAREA_MASK =			(128 - 1),
-	I40IW_FPM_QUERY_BUF_ALIGNMENT_MASK =	0,
-	I40IW_FPM_COMMIT_BUF_ALIGNMENT_MASK =	0
+	I40IW_FPM_QUERY_BUF_ALIGNMENT_MASK =	(4 - 1),
+	I40IW_FPM_COMMIT_BUF_ALIGNMENT_MASK =	(4 - 1)
 };
 
 enum i40iw_alignment {
diff --git a/drivers/infiniband/hw/i40iw/i40iw_main.c b/drivers/infiniband/hw/i40iw/i40iw_main.c
index e0f47cc2effc..ae8463ff59a7 100644
--- a/drivers/infiniband/hw/i40iw/i40iw_main.c
+++ b/drivers/infiniband/hw/i40iw/i40iw_main.c
@@ -243,6 +243,8 @@ static void i40iw_destroy_cqp(struct i40iw_device *iwdev, bool free_hwcqp)
 	if (free_hwcqp)
 		dev->cqp_ops->cqp_destroy(dev->cqp);
 
+	i40iw_cleanup_pending_cqp_op(iwdev);
+
 	i40iw_free_dma_mem(dev->hw, &cqp->sq);
 	kfree(cqp->scratch_array);
 	iwdev->cqp.scratch_array = NULL;
@@ -274,13 +276,12 @@ static void i40iw_disable_irq(struct i40iw_sc_dev *dev,
 /**
  * i40iw_destroy_aeq - destroy aeq
  * @iwdev: iwarp device
- * @reset: true if called before reset
  *
  * Issue a destroy aeq request and
  * free the resources associated with the aeq
  * The function is called during driver unload
  */
-static void i40iw_destroy_aeq(struct i40iw_device *iwdev, bool reset)
+static void i40iw_destroy_aeq(struct i40iw_device *iwdev)
 {
 	enum i40iw_status_code status = I40IW_ERR_NOT_READY;
 	struct i40iw_sc_dev *dev = &iwdev->sc_dev;
@@ -288,7 +289,7 @@ static void i40iw_destroy_aeq(struct i40iw_device *iwdev, bool reset)
 
 	if (!iwdev->msix_shared)
 		i40iw_disable_irq(dev, iwdev->iw_msixtbl, (void *)iwdev);
-	if (reset)
+	if (iwdev->reset)
 		goto exit;
 
 	if (!dev->aeq_ops->aeq_destroy(&aeq->sc_aeq, 0, 1))
@@ -304,19 +305,17 @@ exit:
  * i40iw_destroy_ceq - destroy ceq
  * @iwdev: iwarp device
  * @iwceq: ceq to be destroyed
- * @reset: true if called before reset
  *
  * Issue a destroy ceq request and
  * free the resources associated with the ceq
  */
 static void i40iw_destroy_ceq(struct i40iw_device *iwdev,
-			      struct i40iw_ceq *iwceq,
-			      bool reset)
+			      struct i40iw_ceq *iwceq)
 {
 	enum i40iw_status_code status;
 	struct i40iw_sc_dev *dev = &iwdev->sc_dev;
 
-	if (reset)
+	if (iwdev->reset)
 		goto exit;
 
 	status = dev->ceq_ops->ceq_destroy(&iwceq->sc_ceq, 0, 1);
@@ -335,12 +334,11 @@ exit:
 /**
  * i40iw_dele_ceqs - destroy all ceq's
  * @iwdev: iwarp device
- * @reset: true if called before reset
  *
  * Go through all of the device ceq's and for each ceq
  * disable the ceq interrupt and destroy the ceq
  */
-static void i40iw_dele_ceqs(struct i40iw_device *iwdev, bool reset)
+static void i40iw_dele_ceqs(struct i40iw_device *iwdev)
 {
 	u32 i = 0;
 	struct i40iw_sc_dev *dev = &iwdev->sc_dev;
@@ -349,32 +347,31 @@ static void i40iw_dele_ceqs(struct i40iw_device *iwdev, bool reset)
 
 	if (iwdev->msix_shared) {
 		i40iw_disable_irq(dev, msix_vec, (void *)iwdev);
-		i40iw_destroy_ceq(iwdev, iwceq, reset);
+		i40iw_destroy_ceq(iwdev, iwceq);
 		iwceq++;
 		i++;
 	}
 
 	for (msix_vec++; i < iwdev->ceqs_count; i++, msix_vec++, iwceq++) {
 		i40iw_disable_irq(dev, msix_vec, (void *)iwceq);
-		i40iw_destroy_ceq(iwdev, iwceq, reset);
+		i40iw_destroy_ceq(iwdev, iwceq);
 	}
 }
 
 /**
  * i40iw_destroy_ccq - destroy control cq
  * @iwdev: iwarp device
- * @reset: true if called before reset
  *
  * Issue destroy ccq request and
  * free the resources associated with the ccq
  */
-static void i40iw_destroy_ccq(struct i40iw_device *iwdev, bool reset)
+static void i40iw_destroy_ccq(struct i40iw_device *iwdev)
 {
 	struct i40iw_sc_dev *dev = &iwdev->sc_dev;
 	struct i40iw_ccq *ccq = &iwdev->ccq;
 	enum i40iw_status_code status = 0;
 
-	if (!reset)
+	if (!iwdev->reset)
 		status = dev->ccq_ops->ccq_destroy(dev->ccq, 0, true);
 	if (status)
 		i40iw_pr_err("ccq destroy failed %d\n", status);
@@ -810,7 +807,7 @@ static enum i40iw_status_code i40iw_setup_ceqs(struct i40iw_device *iwdev,
 		iwceq->msix_idx = msix_vec->idx;
 		status = i40iw_configure_ceq_vector(iwdev, iwceq, ceq_id, msix_vec);
 		if (status) {
-			i40iw_destroy_ceq(iwdev, iwceq, false);
+			i40iw_destroy_ceq(iwdev, iwceq);
 			break;
 		}
 		i40iw_enable_intr(&iwdev->sc_dev, msix_vec->idx);
@@ -912,7 +909,7 @@ static enum i40iw_status_code i40iw_setup_aeq(struct i40iw_device *iwdev)
 
 	status = i40iw_configure_aeq_vector(iwdev);
 	if (status) {
-		i40iw_destroy_aeq(iwdev, false);
+		i40iw_destroy_aeq(iwdev);
 		return status;
 	}
 
@@ -1442,12 +1439,11 @@ static enum i40iw_status_code i40iw_save_msix_info(struct i40iw_device *iwdev,
 /**
  * i40iw_deinit_device - clean up the device resources
  * @iwdev: iwarp device
- * @reset: true if called before reset
  *
  * Destroy the ib device interface, remove the mac ip entry and ipv4/ipv6 addresses,
  * destroy the device queues and free the pble and the hmc objects
  */
-static void i40iw_deinit_device(struct i40iw_device *iwdev, bool reset)
+static void i40iw_deinit_device(struct i40iw_device *iwdev)
 {
 	struct i40e_info *ldev = iwdev->ldev;
 
@@ -1464,7 +1460,7 @@ static void i40iw_deinit_device(struct i40iw_device *iwdev, bool reset)
 		i40iw_destroy_rdma_device(iwdev->iwibdev);
 		/* fallthrough */
 	case IP_ADDR_REGISTERED:
-		if (!reset)
+		if (!iwdev->reset)
 			i40iw_del_macip_entry(iwdev, (u8)iwdev->mac_ip_table_idx);
 		/* fallthrough */
 	case INET_NOTIFIER:
@@ -1474,26 +1470,26 @@ static void i40iw_deinit_device(struct i40iw_device *iwdev, bool reset)
 			unregister_inet6addr_notifier(&i40iw_inetaddr6_notifier);
 		}
 		/* fallthrough */
+	case PBLE_CHUNK_MEM:
+		i40iw_destroy_pble_pool(dev, iwdev->pble_rsrc);
+		/* fallthrough */
 	case CEQ_CREATED:
-		i40iw_dele_ceqs(iwdev, reset);
+		i40iw_dele_ceqs(iwdev);
 		/* fallthrough */
 	case AEQ_CREATED:
-		i40iw_destroy_aeq(iwdev, reset);
+		i40iw_destroy_aeq(iwdev);
 		/* fallthrough */
 	case IEQ_CREATED:
-		i40iw_puda_dele_resources(&iwdev->vsi, I40IW_PUDA_RSRC_TYPE_IEQ, reset);
+		i40iw_puda_dele_resources(&iwdev->vsi, I40IW_PUDA_RSRC_TYPE_IEQ, iwdev->reset);
 		/* fallthrough */
 	case ILQ_CREATED:
-		i40iw_puda_dele_resources(&iwdev->vsi, I40IW_PUDA_RSRC_TYPE_ILQ, reset);
+		i40iw_puda_dele_resources(&iwdev->vsi, I40IW_PUDA_RSRC_TYPE_ILQ, iwdev->reset);
 		/* fallthrough */
 	case CCQ_CREATED:
-		i40iw_destroy_ccq(iwdev, reset);
-		/* fallthrough */
-	case PBLE_CHUNK_MEM:
-		i40iw_destroy_pble_pool(dev, iwdev->pble_rsrc);
+		i40iw_destroy_ccq(iwdev);
 		/* fallthrough */
 	case HMC_OBJS_CREATED:
-		i40iw_del_hmc_objects(dev, dev->hmc_info, true, reset);
+		i40iw_del_hmc_objects(dev, dev->hmc_info, true, iwdev->reset);
 		/* fallthrough */
 	case CQP_CREATED:
 		i40iw_destroy_cqp(iwdev, true);
@@ -1670,6 +1666,7 @@ static int i40iw_open(struct i40e_info *ldev, struct i40e_client *client)
 		status = i40iw_hmc_init_pble(&iwdev->sc_dev, iwdev->pble_rsrc);
 		if (status)
 			break;
+		iwdev->init_state = PBLE_CHUNK_MEM;
 		iwdev->virtchnl_wq = alloc_ordered_workqueue("iwvch", WQ_MEM_RECLAIM);
 		i40iw_register_notifiers();
 		iwdev->init_state = INET_NOTIFIER;
@@ -1693,7 +1690,7 @@ static int i40iw_open(struct i40e_info *ldev, struct i40e_client *client)
 	} while (0);
 
 	i40iw_pr_err("status = %d last completion = %d\n", status, iwdev->init_state);
-	i40iw_deinit_device(iwdev, false);
+	i40iw_deinit_device(iwdev);
 	return -ERESTART;
 }
 
@@ -1774,9 +1771,12 @@ static void i40iw_close(struct i40e_info *ldev, struct i40e_client *client, bool
 	iwdev = &hdl->device;
 	iwdev->closing = true;
 
+	if (reset)
+		iwdev->reset = true;
+
 	i40iw_cm_disconnect_all(iwdev);
 	destroy_workqueue(iwdev->virtchnl_wq);
-	i40iw_deinit_device(iwdev, reset);
+	i40iw_deinit_device(iwdev);
 }
 
 /**
diff --git a/drivers/infiniband/hw/i40iw/i40iw_puda.c b/drivers/infiniband/hw/i40iw/i40iw_puda.c
index db41ab40da9c..7f5583d83622 100644
--- a/drivers/infiniband/hw/i40iw/i40iw_puda.c
+++ b/drivers/infiniband/hw/i40iw/i40iw_puda.c
@@ -408,6 +408,9 @@ enum i40iw_status_code i40iw_puda_send(struct i40iw_sc_qp *qp,
 	set_64bit_val(wqe, 0, info->paddr);
 	set_64bit_val(wqe, 8, LS_64(info->len, I40IWQPSQ_FRAG_LEN));
 	set_64bit_val(wqe, 16, header[0]);
+
+	/* Ensure all data is written before writing valid bit */
+	wmb();
 	set_64bit_val(wqe, 24, header[1]);
 
 	i40iw_debug_buf(qp->dev, I40IW_DEBUG_PUDA, "PUDA SEND WQE", wqe, 32);
@@ -682,7 +685,7 @@ static enum i40iw_status_code i40iw_puda_cq_create(struct i40iw_puda_rsrc *rsrc)
 	cqsize = rsrc->cq_size * (sizeof(struct i40iw_cqe));
 	tsize = cqsize + sizeof(struct i40iw_cq_shadow_area);
 	ret = i40iw_allocate_dma_mem(dev->hw, &rsrc->cqmem, tsize,
-				     I40IW_CQ0_ALIGNMENT_MASK);
+				     I40IW_CQ0_ALIGNMENT);
 	if (ret)
 		return ret;
 
@@ -1411,10 +1414,10 @@ static void i40iw_ieq_handle_exception(struct i40iw_puda_rsrc *ieq,
 
 	if (!list_empty(rxlist)) {
 		tmpbuf = (struct i40iw_puda_buf *)rxlist->next;
-		plist = &tmpbuf->list;
 		while ((struct list_head *)tmpbuf != rxlist) {
 			if ((int)(buf->seqnum - tmpbuf->seqnum) < 0)
 				break;
+			plist = &tmpbuf->list;
 			tmpbuf = (struct i40iw_puda_buf *)plist->next;
 		}
 		/* Insert buf before tmpbuf */
diff --git a/drivers/infiniband/hw/i40iw/i40iw_status.h b/drivers/infiniband/hw/i40iw/i40iw_status.h
index 91c421762f06..f7013f11d808 100644
--- a/drivers/infiniband/hw/i40iw/i40iw_status.h
+++ b/drivers/infiniband/hw/i40iw/i40iw_status.h
@@ -62,7 +62,7 @@ enum i40iw_status_code {
 	I40IW_ERR_INVALID_ALIGNMENT = -23,
 	I40IW_ERR_FLUSHED_QUEUE = -24,
 	I40IW_ERR_INVALID_PUSH_PAGE_INDEX = -25,
-	I40IW_ERR_INVALID_IMM_DATA_SIZE = -26,
+	I40IW_ERR_INVALID_INLINE_DATA_SIZE = -26,
 	I40IW_ERR_TIMEOUT = -27,
 	I40IW_ERR_OPCODE_MISMATCH = -28,
 	I40IW_ERR_CQP_COMPL_ERROR = -29,
diff --git a/drivers/infiniband/hw/i40iw/i40iw_uk.c b/drivers/infiniband/hw/i40iw/i40iw_uk.c
index b0d3a0e8a9b5..1060725d18bc 100644
--- a/drivers/infiniband/hw/i40iw/i40iw_uk.c
+++ b/drivers/infiniband/hw/i40iw/i40iw_uk.c
@@ -435,7 +435,7 @@ static enum i40iw_status_code i40iw_inline_rdma_write(struct i40iw_qp_uk *qp,
 
 	op_info = &info->op.inline_rdma_write;
 	if (op_info->len > I40IW_MAX_INLINE_DATA_SIZE)
-		return I40IW_ERR_INVALID_IMM_DATA_SIZE;
+		return I40IW_ERR_INVALID_INLINE_DATA_SIZE;
 
 	ret_code = i40iw_inline_data_size_to_wqesize(op_info->len, &wqe_size);
 	if (ret_code)
@@ -511,7 +511,7 @@ static enum i40iw_status_code i40iw_inline_send(struct i40iw_qp_uk *qp,
 
 	op_info = &info->op.inline_send;
 	if (op_info->len > I40IW_MAX_INLINE_DATA_SIZE)
-		return I40IW_ERR_INVALID_IMM_DATA_SIZE;
+		return I40IW_ERR_INVALID_INLINE_DATA_SIZE;
 
 	ret_code = i40iw_inline_data_size_to_wqesize(op_info->len, &wqe_size);
 	if (ret_code)
@@ -784,7 +784,7 @@ static enum i40iw_status_code i40iw_cq_poll_completion(struct i40iw_cq_uk *cq,
 	get_64bit_val(cqe, 0, &qword0);
 	get_64bit_val(cqe, 16, &qword2);
 
-	info->tcp_seq_num = (u8)RS_64(qword0, I40IWCQ_TCPSEQNUM);
+	info->tcp_seq_num = (u32)RS_64(qword0, I40IWCQ_TCPSEQNUM);
 
 	info->qp_id = (u32)RS_64(qword2, I40IWCQ_QPID);
 
@@ -1187,7 +1187,7 @@ enum i40iw_status_code i40iw_inline_data_size_to_wqesize(u32 data_size,
 							 u8 *wqe_size)
 {
 	if (data_size > I40IW_MAX_INLINE_DATA_SIZE)
-		return I40IW_ERR_INVALID_IMM_DATA_SIZE;
+		return I40IW_ERR_INVALID_INLINE_DATA_SIZE;
 
 	if (data_size <= 16)
 		*wqe_size = I40IW_QP_WQE_MIN_SIZE;
diff --git a/drivers/infiniband/hw/i40iw/i40iw_utils.c b/drivers/infiniband/hw/i40iw/i40iw_utils.c
index 56d986924a4c..e311ec559f4e 100644
--- a/drivers/infiniband/hw/i40iw/i40iw_utils.c
+++ b/drivers/infiniband/hw/i40iw/i40iw_utils.c
@@ -337,6 +337,7 @@ struct i40iw_cqp_request *i40iw_get_cqp_request(struct i40iw_cqp *cqp, bool wait
  */
 void i40iw_free_cqp_request(struct i40iw_cqp *cqp, struct i40iw_cqp_request *cqp_request)
 {
+	struct i40iw_device *iwdev = container_of(cqp, struct i40iw_device, cqp);
 	unsigned long flags;
 
 	if (cqp_request->dynamic) {
@@ -350,6 +351,7 @@ void i40iw_free_cqp_request(struct i40iw_cqp *cqp, struct i40iw_cqp_request *cqp
 		list_add_tail(&cqp_request->list, &cqp->cqp_avail_reqs);
 		spin_unlock_irqrestore(&cqp->req_lock, flags);
 	}
+	wake_up(&iwdev->close_wq);
 }
 
 /**
@@ -365,6 +367,56 @@ void i40iw_put_cqp_request(struct i40iw_cqp *cqp,
 }
 
 /**
+ * i40iw_free_pending_cqp_request -free pending cqp request objs
+ * @cqp: cqp ptr
+ * @cqp_request: to be put back in cqp list
+ */
+static void i40iw_free_pending_cqp_request(struct i40iw_cqp *cqp,
+					   struct i40iw_cqp_request *cqp_request)
+{
+	struct i40iw_device *iwdev = container_of(cqp, struct i40iw_device, cqp);
+
+	if (cqp_request->waiting) {
+		cqp_request->compl_info.error = true;
+		cqp_request->request_done = true;
+		wake_up(&cqp_request->waitq);
+	}
+	i40iw_put_cqp_request(cqp, cqp_request);
+	wait_event_timeout(iwdev->close_wq,
+			   !atomic_read(&cqp_request->refcount),
+			   1000);
+}
+
+/**
+ * i40iw_cleanup_pending_cqp_op - clean-up cqp with no completions
+ * @iwdev: iwarp device
+ */
+void i40iw_cleanup_pending_cqp_op(struct i40iw_device *iwdev)
+{
+	struct i40iw_sc_dev *dev = &iwdev->sc_dev;
+	struct i40iw_cqp *cqp = &iwdev->cqp;
+	struct i40iw_cqp_request *cqp_request = NULL;
+	struct cqp_commands_info *pcmdinfo = NULL;
+	u32 i, pending_work, wqe_idx;
+
+	pending_work = I40IW_RING_WORK_AVAILABLE(cqp->sc_cqp.sq_ring);
+	wqe_idx = I40IW_RING_GETCURRENT_TAIL(cqp->sc_cqp.sq_ring);
+	for (i = 0; i < pending_work; i++) {
+		cqp_request = (struct i40iw_cqp_request *)(unsigned long)cqp->scratch_array[wqe_idx];
+		if (cqp_request)
+			i40iw_free_pending_cqp_request(cqp, cqp_request);
+		wqe_idx = (wqe_idx + 1) % I40IW_RING_GETSIZE(cqp->sc_cqp.sq_ring);
+	}
+
+	while (!list_empty(&dev->cqp_cmd_head)) {
+		pcmdinfo = (struct cqp_commands_info *)i40iw_remove_head(&dev->cqp_cmd_head);
+		cqp_request = container_of(pcmdinfo, struct i40iw_cqp_request, info);
+		if (cqp_request)
+			i40iw_free_pending_cqp_request(cqp, cqp_request);
+	}
+}
+
+/**
  * i40iw_free_qp - callback after destroy cqp completes
  * @cqp_request: cqp request for destroy qp
  * @num: not used
@@ -546,8 +598,12 @@ void i40iw_rem_ref(struct ib_qp *ibqp)
 	cqp_info->in.u.qp_destroy.scratch = (uintptr_t)cqp_request;
 	cqp_info->in.u.qp_destroy.remove_hash_idx = true;
 	status = i40iw_handle_cqp_op(iwdev, cqp_request);
-	if (status)
-		i40iw_pr_err("CQP-OP Destroy QP fail");
+	if (!status)
+		return;
+
+	i40iw_rem_pdusecount(iwqp->iwpd, iwdev);
+	i40iw_free_qp_resources(iwdev, iwqp, qp_num);
+	i40iw_rem_devusecount(iwdev);
 }
 
 /**
diff --git a/drivers/infiniband/hw/i40iw/i40iw_verbs.c b/drivers/infiniband/hw/i40iw/i40iw_verbs.c
index 4dbe61ec7a77..02d871db7ca5 100644
--- a/drivers/infiniband/hw/i40iw/i40iw_verbs.c
+++ b/drivers/infiniband/hw/i40iw/i40iw_verbs.c
@@ -426,9 +426,13 @@ void i40iw_free_qp_resources(struct i40iw_device *iwdev,
 			     struct i40iw_qp *iwqp,
 			     u32 qp_num)
 {
+	struct i40iw_pbl *iwpbl = &iwqp->iwpbl;
+
 	i40iw_dealloc_push_page(iwdev, &iwqp->sc_qp);
 	if (qp_num)
 		i40iw_free_resource(iwdev, iwdev->allocated_qps, qp_num);
+	if (iwpbl->pbl_allocated)
+		i40iw_free_pble(iwdev->pble_rsrc, &iwpbl->pble_alloc);
 	i40iw_free_dma_mem(iwdev->sc_dev.hw, &iwqp->q2_ctx_mem);
 	i40iw_free_dma_mem(iwdev->sc_dev.hw, &iwqp->kqp.dma_mem);
 	kfree(iwqp->kqp.wrid_mem);
@@ -483,7 +487,7 @@ static int i40iw_setup_virt_qp(struct i40iw_device *iwdev,
 			       struct i40iw_qp *iwqp,
 			       struct i40iw_qp_init_info *init_info)
 {
-	struct i40iw_pbl *iwpbl = iwqp->iwpbl;
+	struct i40iw_pbl *iwpbl = &iwqp->iwpbl;
 	struct i40iw_qp_mr *qpmr = &iwpbl->qp_mr;
 
 	iwqp->page = qpmr->sq_page;
@@ -688,19 +692,22 @@ static struct ib_qp *i40iw_create_qp(struct ib_pd *ibpd,
 			ucontext = to_ucontext(ibpd->uobject->context);
 
 			if (req.user_wqe_buffers) {
+				struct i40iw_pbl *iwpbl;
+
 				spin_lock_irqsave(
 				    &ucontext->qp_reg_mem_list_lock, flags);
-				iwqp->iwpbl = i40iw_get_pbl(
+				iwpbl = i40iw_get_pbl(
 				    (unsigned long)req.user_wqe_buffers,
 				    &ucontext->qp_reg_mem_list);
 				spin_unlock_irqrestore(
 				    &ucontext->qp_reg_mem_list_lock, flags);
 
-				if (!iwqp->iwpbl) {
+				if (!iwpbl) {
 					err_code = -ENODATA;
 					i40iw_pr_err("no pbl info\n");
 					goto error;
 				}
+				memcpy(&iwqp->iwpbl, iwpbl, sizeof(iwqp->iwpbl));
 			}
 		}
 		err_code = i40iw_setup_virt_qp(iwdev, iwqp, &init_info);
@@ -1161,8 +1168,10 @@ static struct ib_cq *i40iw_create_cq(struct ib_device *ibdev,
 		memset(&req, 0, sizeof(req));
 		iwcq->user_mode = true;
 		ucontext = to_ucontext(context);
-		if (ib_copy_from_udata(&req, udata, sizeof(struct i40iw_create_cq_req)))
+		if (ib_copy_from_udata(&req, udata, sizeof(struct i40iw_create_cq_req))) {
+			err_code = -EFAULT;
 			goto cq_free_resources;
+		}
 
 		spin_lock_irqsave(&ucontext->cq_reg_mem_list_lock, flags);
 		iwpbl = i40iw_get_pbl((unsigned long)req.user_cq_buffer,
@@ -2063,7 +2072,7 @@ static int i40iw_dereg_mr(struct ib_mr *ib_mr)
 			ucontext = to_ucontext(ibpd->uobject->context);
 			i40iw_del_memlist(iwmr, ucontext);
 		}
-		if (iwpbl->pbl_allocated)
+		if (iwpbl->pbl_allocated && iwmr->type != IW_MEMREG_TYPE_QP)
 			i40iw_free_pble(iwdev->pble_rsrc, palloc);
 		kfree(iwmr);
 		return 0;
diff --git a/drivers/infiniband/hw/i40iw/i40iw_verbs.h b/drivers/infiniband/hw/i40iw/i40iw_verbs.h
index 07c3fec77de6..9067443cd311 100644
--- a/drivers/infiniband/hw/i40iw/i40iw_verbs.h
+++ b/drivers/infiniband/hw/i40iw/i40iw_verbs.h
@@ -170,7 +170,7 @@ struct i40iw_qp {
 	struct i40iw_qp_kmode kqp;
 	struct i40iw_dma_mem host_ctx;
 	struct timer_list terminate_timer;
-	struct i40iw_pbl *iwpbl;
+	struct i40iw_pbl iwpbl;
 	struct i40iw_dma_mem q2_ctx_mem;
 	struct i40iw_dma_mem ietf_mem;
 	struct completion sq_drained;
diff --git a/drivers/infiniband/hw/mlx4/cm.c b/drivers/infiniband/hw/mlx4/cm.c
index 1e6c526450d9..fedaf8260105 100644
--- a/drivers/infiniband/hw/mlx4/cm.c
+++ b/drivers/infiniband/hw/mlx4/cm.c
@@ -323,6 +323,9 @@ int mlx4_ib_multiplex_cm_handler(struct ib_device *ibdev, int port, int slave_id
 			mad->mad_hdr.attr_id == CM_REP_ATTR_ID ||
 			mad->mad_hdr.attr_id == CM_SIDR_REQ_ATTR_ID) {
 		sl_cm_id = get_local_comm_id(mad);
+		id = id_map_get(ibdev, &pv_cm_id, slave_id, sl_cm_id);
+		if (id)
+			goto cont;
 		id = id_map_alloc(ibdev, slave_id, sl_cm_id);
 		if (IS_ERR(id)) {
 			mlx4_ib_warn(ibdev, "%s: id{slave: %d, sl_cm_id: 0x%x} Failed to id_map_alloc\n",
@@ -343,6 +346,7 @@ int mlx4_ib_multiplex_cm_handler(struct ib_device *ibdev, int port, int slave_id
 		return -EINVAL;
 	}
 
+cont:
 	set_local_comm_id(mad, id->pv_cm_id);
 
 	if (mad->mad_hdr.attr_id == CM_DREQ_ATTR_ID)
diff --git a/drivers/infiniband/hw/mlx4/cq.c b/drivers/infiniband/hw/mlx4/cq.c
index 4f5a143fc0a7..ff931c580557 100644
--- a/drivers/infiniband/hw/mlx4/cq.c
+++ b/drivers/infiniband/hw/mlx4/cq.c
@@ -102,7 +102,7 @@ static int mlx4_ib_alloc_cq_buf(struct mlx4_ib_dev *dev, struct mlx4_ib_cq_buf *
 	int err;
 
 	err = mlx4_buf_alloc(dev->dev, nent * dev->dev->caps.cqe_size,
-			     PAGE_SIZE * 2, &buf->buf, GFP_KERNEL);
+			     PAGE_SIZE * 2, &buf->buf);
 
 	if (err)
 		goto out;
@@ -113,7 +113,7 @@ static int mlx4_ib_alloc_cq_buf(struct mlx4_ib_dev *dev, struct mlx4_ib_cq_buf *
 	if (err)
 		goto err_buf;
 
-	err = mlx4_buf_write_mtt(dev->dev, &buf->mtt, &buf->buf, GFP_KERNEL);
+	err = mlx4_buf_write_mtt(dev->dev, &buf->mtt, &buf->buf);
 	if (err)
 		goto err_mtt;
 
@@ -219,7 +219,7 @@ struct ib_cq *mlx4_ib_create_cq(struct ib_device *ibdev,
 
 		uar = &to_mucontext(context)->uar;
 	} else {
-		err = mlx4_db_alloc(dev->dev, &cq->db, 1, GFP_KERNEL);
+		err = mlx4_db_alloc(dev->dev, &cq->db, 1);
 		if (err)
 			goto err_cq;
 
diff --git a/drivers/infiniband/hw/mlx4/main.c b/drivers/infiniband/hw/mlx4/main.c
index 75b2f7d4cd95..d1b43cbbfea7 100644
--- a/drivers/infiniband/hw/mlx4/main.c
+++ b/drivers/infiniband/hw/mlx4/main.c
@@ -1155,7 +1155,7 @@ static void mlx4_ib_disassociate_ucontext(struct ib_ucontext *ibcontext)
 			 * call to mlx4_ib_vma_close.
 			 */
 			put_task_struct(owning_process);
-			msleep(1);
+			usleep_range(1000, 2000);
 			owning_process = get_pid_task(ibcontext->tgid,
 						      PIDTYPE_PID);
 			if (!owning_process ||
diff --git a/drivers/infiniband/hw/mlx4/mcg.c b/drivers/infiniband/hw/mlx4/mcg.c
index 3405e947dc1e..b73f89700ef9 100644
--- a/drivers/infiniband/hw/mlx4/mcg.c
+++ b/drivers/infiniband/hw/mlx4/mcg.c
@@ -1091,7 +1091,7 @@ static void _mlx4_ib_mcg_port_cleanup(struct mlx4_ib_demux_ctx *ctx, int destroy
 		if (!count)
 			break;
 
-		msleep(1);
+		usleep_range(1000, 2000);
 	} while (time_after(end, jiffies));
 
 	flush_workqueue(ctx->mcg_wq);
diff --git a/drivers/infiniband/hw/mlx4/mlx4_ib.h b/drivers/infiniband/hw/mlx4/mlx4_ib.h
index c2b9cbf4da05..9db82e67e959 100644
--- a/drivers/infiniband/hw/mlx4/mlx4_ib.h
+++ b/drivers/infiniband/hw/mlx4/mlx4_ib.h
@@ -185,7 +185,6 @@ enum mlx4_ib_qp_flags {
 	MLX4_IB_QP_LSO = IB_QP_CREATE_IPOIB_UD_LSO,
 	MLX4_IB_QP_BLOCK_MULTICAST_LOOPBACK = IB_QP_CREATE_BLOCK_MULTICAST_LOOPBACK,
 	MLX4_IB_QP_NETIF = IB_QP_CREATE_NETIF_QP,
-	MLX4_IB_QP_CREATE_USE_GFP_NOIO = IB_QP_CREATE_USE_GFP_NOIO,
 
 	/* Mellanox specific flags start from IB_QP_CREATE_RESERVED_START */
 	MLX4_IB_ROCE_V2_GSI_QP = MLX4_IB_QP_CREATE_ROCE_V2_GSI,
diff --git a/drivers/infiniband/hw/mlx4/qp.c b/drivers/infiniband/hw/mlx4/qp.c
index 996e9058e515..75c0e6c5dd56 100644
--- a/drivers/infiniband/hw/mlx4/qp.c
+++ b/drivers/infiniband/hw/mlx4/qp.c
@@ -634,8 +634,8 @@ static void mlx4_ib_free_qp_counter(struct mlx4_ib_dev *dev,
 
 static int create_qp_common(struct mlx4_ib_dev *dev, struct ib_pd *pd,
 			    struct ib_qp_init_attr *init_attr,
-			    struct ib_udata *udata, int sqpn, struct mlx4_ib_qp **caller_qp,
-			    gfp_t gfp)
+			    struct ib_udata *udata, int sqpn,
+			    struct mlx4_ib_qp **caller_qp)
 {
 	int qpn;
 	int err;
@@ -691,14 +691,14 @@ static int create_qp_common(struct mlx4_ib_dev *dev, struct ib_pd *pd,
 		if (qp_type == MLX4_IB_QPT_SMI || qp_type == MLX4_IB_QPT_GSI ||
 		    (qp_type & (MLX4_IB_QPT_PROXY_SMI | MLX4_IB_QPT_PROXY_SMI_OWNER |
 				MLX4_IB_QPT_PROXY_GSI | MLX4_IB_QPT_TUN_SMI_OWNER))) {
-			sqp = kzalloc(sizeof (struct mlx4_ib_sqp), gfp);
+			sqp = kzalloc(sizeof(struct mlx4_ib_sqp), GFP_KERNEL);
 			if (!sqp)
 				return -ENOMEM;
 			qp = &sqp->qp;
 			qp->pri.vid = 0xFFFF;
 			qp->alt.vid = 0xFFFF;
 		} else {
-			qp = kzalloc(sizeof (struct mlx4_ib_qp), gfp);
+			qp = kzalloc(sizeof(struct mlx4_ib_qp), GFP_KERNEL);
 			if (!qp)
 				return -ENOMEM;
 			qp->pri.vid = 0xFFFF;
@@ -780,7 +780,7 @@ static int create_qp_common(struct mlx4_ib_dev *dev, struct ib_pd *pd,
 			goto err;
 
 		if (qp_has_rq(init_attr)) {
-			err = mlx4_db_alloc(dev->dev, &qp->db, 0, gfp);
+			err = mlx4_db_alloc(dev->dev, &qp->db, 0);
 			if (err)
 				goto err;
 
@@ -788,7 +788,7 @@ static int create_qp_common(struct mlx4_ib_dev *dev, struct ib_pd *pd,
 		}
 
 		if (mlx4_buf_alloc(dev->dev, qp->buf_size, qp->buf_size,
-				   &qp->buf, gfp)) {
+				   &qp->buf)) {
 			memcpy(&init_attr->cap, &backup_cap,
 			       sizeof(backup_cap));
 			err = set_kernel_sq_size(dev, &init_attr->cap, qp_type,
@@ -797,7 +797,7 @@ static int create_qp_common(struct mlx4_ib_dev *dev, struct ib_pd *pd,
 				goto err_db;
 
 			if (mlx4_buf_alloc(dev->dev, qp->buf_size,
-					   PAGE_SIZE * 2, &qp->buf, gfp)) {
+					   PAGE_SIZE * 2, &qp->buf)) {
 				err = -ENOMEM;
 				goto err_db;
 			}
@@ -808,20 +808,20 @@ static int create_qp_common(struct mlx4_ib_dev *dev, struct ib_pd *pd,
 		if (err)
 			goto err_buf;
 
-		err = mlx4_buf_write_mtt(dev->dev, &qp->mtt, &qp->buf, gfp);
+		err = mlx4_buf_write_mtt(dev->dev, &qp->mtt, &qp->buf);
 		if (err)
 			goto err_mtt;
 
 		qp->sq.wrid = kmalloc_array(qp->sq.wqe_cnt, sizeof(u64),
-					gfp | __GFP_NOWARN);
+					GFP_KERNEL | __GFP_NOWARN);
 		if (!qp->sq.wrid)
 			qp->sq.wrid = __vmalloc(qp->sq.wqe_cnt * sizeof(u64),
-						gfp, PAGE_KERNEL);
+						GFP_KERNEL, PAGE_KERNEL);
 		qp->rq.wrid = kmalloc_array(qp->rq.wqe_cnt, sizeof(u64),
-					gfp | __GFP_NOWARN);
+					GFP_KERNEL | __GFP_NOWARN);
 		if (!qp->rq.wrid)
 			qp->rq.wrid = __vmalloc(qp->rq.wqe_cnt * sizeof(u64),
-						gfp, PAGE_KERNEL);
+						GFP_KERNEL, PAGE_KERNEL);
 		if (!qp->sq.wrid || !qp->rq.wrid) {
 			err = -ENOMEM;
 			goto err_wrid;
@@ -859,7 +859,7 @@ static int create_qp_common(struct mlx4_ib_dev *dev, struct ib_pd *pd,
 	if (init_attr->create_flags & IB_QP_CREATE_BLOCK_MULTICAST_LOOPBACK)
 		qp->flags |= MLX4_IB_QP_BLOCK_MULTICAST_LOOPBACK;
 
-	err = mlx4_qp_alloc(dev->dev, qpn, &qp->mqp, gfp);
+	err = mlx4_qp_alloc(dev->dev, qpn, &qp->mqp);
 	if (err)
 		goto err_qpn;
 
@@ -1127,10 +1127,7 @@ static struct ib_qp *_mlx4_ib_create_qp(struct ib_pd *pd,
 	int err;
 	int sup_u_create_flags = MLX4_IB_QP_BLOCK_MULTICAST_LOOPBACK;
 	u16 xrcdn = 0;
-	gfp_t gfp;
 
-	gfp = (init_attr->create_flags & MLX4_IB_QP_CREATE_USE_GFP_NOIO) ?
-		GFP_NOIO : GFP_KERNEL;
 	/*
 	 * We only support LSO, vendor flag1, and multicast loopback blocking,
 	 * and only for kernel UD QPs.
@@ -1140,8 +1137,7 @@ static struct ib_qp *_mlx4_ib_create_qp(struct ib_pd *pd,
 					MLX4_IB_SRIOV_TUNNEL_QP |
 					MLX4_IB_SRIOV_SQP |
 					MLX4_IB_QP_NETIF |
-					MLX4_IB_QP_CREATE_ROCE_V2_GSI |
-					MLX4_IB_QP_CREATE_USE_GFP_NOIO))
+					MLX4_IB_QP_CREATE_ROCE_V2_GSI))
 		return ERR_PTR(-EINVAL);
 
 	if (init_attr->create_flags & IB_QP_CREATE_NETIF_QP) {
@@ -1154,7 +1150,6 @@ static struct ib_qp *_mlx4_ib_create_qp(struct ib_pd *pd,
 			return ERR_PTR(-EINVAL);
 
 		if ((init_attr->create_flags & ~(MLX4_IB_SRIOV_SQP |
-						 MLX4_IB_QP_CREATE_USE_GFP_NOIO |
 						 MLX4_IB_QP_CREATE_ROCE_V2_GSI  |
 						 MLX4_IB_QP_BLOCK_MULTICAST_LOOPBACK) &&
 		     init_attr->qp_type != IB_QPT_UD) ||
@@ -1179,7 +1174,7 @@ static struct ib_qp *_mlx4_ib_create_qp(struct ib_pd *pd,
 	case IB_QPT_RC:
 	case IB_QPT_UC:
 	case IB_QPT_RAW_PACKET:
-		qp = kzalloc(sizeof *qp, gfp);
+		qp = kzalloc(sizeof(*qp), GFP_KERNEL);
 		if (!qp)
 			return ERR_PTR(-ENOMEM);
 		qp->pri.vid = 0xFFFF;
@@ -1188,7 +1183,7 @@ static struct ib_qp *_mlx4_ib_create_qp(struct ib_pd *pd,
 	case IB_QPT_UD:
 	{
 		err = create_qp_common(to_mdev(pd->device), pd, init_attr,
-				       udata, 0, &qp, gfp);
+				       udata, 0, &qp);
 		if (err) {
 			kfree(qp);
 			return ERR_PTR(err);
@@ -1217,8 +1212,7 @@ static struct ib_qp *_mlx4_ib_create_qp(struct ib_pd *pd,
 		}
 
 		err = create_qp_common(to_mdev(pd->device), pd, init_attr, udata,
-				       sqpn,
-				       &qp, gfp);
+				       sqpn, &qp);
 		if (err)
 			return ERR_PTR(err);
 
diff --git a/drivers/infiniband/hw/mlx4/srq.c b/drivers/infiniband/hw/mlx4/srq.c
index e32dd58937a8..0facaf5f6d23 100644
--- a/drivers/infiniband/hw/mlx4/srq.c
+++ b/drivers/infiniband/hw/mlx4/srq.c
@@ -135,14 +135,14 @@ struct ib_srq *mlx4_ib_create_srq(struct ib_pd *pd,
 		if (err)
 			goto err_mtt;
 	} else {
-		err = mlx4_db_alloc(dev->dev, &srq->db, 0, GFP_KERNEL);
+		err = mlx4_db_alloc(dev->dev, &srq->db, 0);
 		if (err)
 			goto err_srq;
 
 		*srq->db.db = 0;
 
-		if (mlx4_buf_alloc(dev->dev, buf_size, PAGE_SIZE * 2, &srq->buf,
-				   GFP_KERNEL)) {
+		if (mlx4_buf_alloc(dev->dev, buf_size, PAGE_SIZE * 2,
+				   &srq->buf)) {
 			err = -ENOMEM;
 			goto err_db;
 		}
@@ -167,7 +167,7 @@ struct ib_srq *mlx4_ib_create_srq(struct ib_pd *pd,
 		if (err)
 			goto err_buf;
 
-		err = mlx4_buf_write_mtt(dev->dev, &srq->mtt, &srq->buf, GFP_KERNEL);
+		err = mlx4_buf_write_mtt(dev->dev, &srq->mtt, &srq->buf);
 		if (err)
 			goto err_mtt;
 
diff --git a/drivers/infiniband/hw/mlx5/mr.c b/drivers/infiniband/hw/mlx5/mr.c
index 763bb5b36144..2c40a2e989d2 100644
--- a/drivers/infiniband/hw/mlx5/mr.c
+++ b/drivers/infiniband/hw/mlx5/mr.c
@@ -582,6 +582,15 @@ static void clean_keys(struct mlx5_ib_dev *dev, int c)
 	}
 }
 
+static void mlx5_mr_cache_debugfs_cleanup(struct mlx5_ib_dev *dev)
+{
+	if (!mlx5_debugfs_root)
+		return;
+
+	debugfs_remove_recursive(dev->cache.root);
+	dev->cache.root = NULL;
+}
+
 static int mlx5_mr_cache_debugfs_init(struct mlx5_ib_dev *dev)
 {
 	struct mlx5_mr_cache *cache = &dev->cache;
@@ -600,38 +609,34 @@ static int mlx5_mr_cache_debugfs_init(struct mlx5_ib_dev *dev)
 		sprintf(ent->name, "%d", ent->order);
 		ent->dir = debugfs_create_dir(ent->name,  cache->root);
 		if (!ent->dir)
-			return -ENOMEM;
+			goto err;
 
 		ent->fsize = debugfs_create_file("size", 0600, ent->dir, ent,
 						 &size_fops);
 		if (!ent->fsize)
-			return -ENOMEM;
+			goto err;
 
 		ent->flimit = debugfs_create_file("limit", 0600, ent->dir, ent,
 						  &limit_fops);
 		if (!ent->flimit)
-			return -ENOMEM;
+			goto err;
 
 		ent->fcur = debugfs_create_u32("cur", 0400, ent->dir,
 					       &ent->cur);
 		if (!ent->fcur)
-			return -ENOMEM;
+			goto err;
 
 		ent->fmiss = debugfs_create_u32("miss", 0600, ent->dir,
 						&ent->miss);
 		if (!ent->fmiss)
-			return -ENOMEM;
+			goto err;
 	}
 
 	return 0;
-}
-
-static void mlx5_mr_cache_debugfs_cleanup(struct mlx5_ib_dev *dev)
-{
-	if (!mlx5_debugfs_root)
-		return;
+err:
+	mlx5_mr_cache_debugfs_cleanup(dev);
 
-	debugfs_remove_recursive(dev->cache.root);
+	return -ENOMEM;
 }
 
 static void delay_time_func(unsigned long ctx)
@@ -692,6 +697,11 @@ int mlx5_mr_cache_init(struct mlx5_ib_dev *dev)
 	if (err)
 		mlx5_ib_warn(dev, "cache debugfs failure\n");
 
+	/*
+	 * We don't want to fail driver if debugfs failed to initialize,
+	 * so we are not forwarding error to the user.
+	 */
+
 	return 0;
 }
 
@@ -825,7 +835,7 @@ static int mr_umem_get(struct ib_pd *pd, u64 start, u64 length,
 			    access_flags, 0);
 	err = PTR_ERR_OR_ZERO(*umem);
 	if (err < 0) {
-		mlx5_ib_err(dev, "umem get failed (%ld)\n", PTR_ERR(umem));
+		mlx5_ib_err(dev, "umem get failed (%d)\n", err);
 		return err;
 	}
 
@@ -1779,7 +1789,7 @@ mlx5_ib_sg_to_klms(struct mlx5_ib_mr *mr,
 	mr->ndescs = sg_nents;
 
 	for_each_sg(sgl, sg, sg_nents, i) {
-		if (unlikely(i > mr->max_descs))
+		if (unlikely(i >= mr->max_descs))
 			break;
 		klms[i].va = cpu_to_be64(sg_dma_address(sg) + sg_offset);
 		klms[i].bcount = cpu_to_be32(sg_dma_len(sg) - sg_offset);
diff --git a/drivers/infiniband/hw/mlx5/odp.c b/drivers/infiniband/hw/mlx5/odp.c
index ae0746754008..3d701c7a4c91 100644
--- a/drivers/infiniband/hw/mlx5/odp.c
+++ b/drivers/infiniband/hw/mlx5/odp.c
@@ -939,7 +939,7 @@ static int mlx5_ib_mr_initiator_pfault_handler(
 
 	if (qp->ibqp.qp_type != IB_QPT_RC) {
 		av = *wqe;
-		if (av->dqp_dct & be32_to_cpu(MLX5_WQE_AV_EXT))
+		if (av->dqp_dct & cpu_to_be32(MLX5_EXTENDED_UD_AV))
 			*wqe += sizeof(struct mlx5_av);
 		else
 			*wqe += sizeof(struct mlx5_base_av);
diff --git a/drivers/infiniband/hw/nes/nes_hw.c b/drivers/infiniband/hw/nes/nes_hw.c
index 8f9d8b4ad583..b0adf65e4bdb 100644
--- a/drivers/infiniband/hw/nes/nes_hw.c
+++ b/drivers/infiniband/hw/nes/nes_hw.c
@@ -551,7 +551,7 @@ struct nes_adapter *nes_init_adapter(struct nes_device *nesdev, u8 hw_rev) {
 			if ((0x0F000100 == (pcs_control_status0 & 0x0F000100))
 			    || (0x0F000100 == (pcs_control_status1 & 0x0F000100)))
 				int_cnt++;
-			msleep(1);
+			usleep_range(1000, 2000);
 		}
 		if (int_cnt > 1) {
 			spin_lock_irqsave(&nesadapter->phy_lock, flags);
@@ -592,7 +592,7 @@ struct nes_adapter *nes_init_adapter(struct nes_device *nesdev, u8 hw_rev) {
 						break;
 					}
 				}
-				msleep(1);
+				usleep_range(1000, 2000);
 			}
 		}
 	}
diff --git a/drivers/infiniband/hw/ocrdma/ocrdma_verbs.c b/drivers/infiniband/hw/ocrdma/ocrdma_verbs.c
index 2f30bda8457a..27d5e8d9f08d 100644
--- a/drivers/infiniband/hw/ocrdma/ocrdma_verbs.c
+++ b/drivers/infiniband/hw/ocrdma/ocrdma_verbs.c
@@ -744,7 +744,8 @@ err:
 	if (is_uctx_pd) {
 		ocrdma_release_ucontext_pd(uctx);
 	} else {
-		status = _ocrdma_dealloc_pd(dev, pd);
+		if (_ocrdma_dealloc_pd(dev, pd))
+			pr_err("%s: _ocrdma_dealloc_pd() failed\n", __func__);
 	}
 exit:
 	return ERR_PTR(status);
@@ -1901,6 +1902,7 @@ struct ib_srq *ocrdma_create_srq(struct ib_pd *ibpd,
 		goto err;
 
 	if (udata == NULL) {
+		status = -ENOMEM;
 		srq->rqe_wr_id_tbl = kzalloc(sizeof(u64) * srq->rq.max_cnt,
 			    GFP_KERNEL);
 		if (srq->rqe_wr_id_tbl == NULL)
diff --git a/drivers/infiniband/hw/qedr/verbs.c b/drivers/infiniband/hw/qedr/verbs.c
index 548e4d1e998f..2ae71b8f1ba8 100644
--- a/drivers/infiniband/hw/qedr/verbs.c
+++ b/drivers/infiniband/hw/qedr/verbs.c
@@ -53,6 +53,14 @@
 
 #define DB_ADDR_SHIFT(addr)		((addr) << DB_PWM_ADDR_OFFSET_SHIFT)
 
+static inline int qedr_ib_copy_to_udata(struct ib_udata *udata, void *src,
+					size_t len)
+{
+	size_t min_len = min_t(size_t, len, udata->outlen);
+
+	return ib_copy_to_udata(udata, src, min_len);
+}
+
 int qedr_query_pkey(struct ib_device *ibdev, u8 port, u16 index, u16 *pkey)
 {
 	if (index > QEDR_ROCE_PKEY_TABLE_LEN)
@@ -378,7 +386,7 @@ struct ib_ucontext *qedr_alloc_ucontext(struct ib_device *ibdev,
 	uresp.sges_per_srq_wr = dev->attr.max_srq_sge;
 	uresp.max_cqes = QEDR_MAX_CQES;
 
-	rc = ib_copy_to_udata(udata, &uresp, sizeof(uresp));
+	rc = qedr_ib_copy_to_udata(udata, &uresp, sizeof(uresp));
 	if (rc)
 		goto err;
 
@@ -499,7 +507,7 @@ struct ib_pd *qedr_alloc_pd(struct ib_device *ibdev,
 
 		uresp.pd_id = pd_id;
 
-		rc = ib_copy_to_udata(udata, &uresp, sizeof(uresp));
+		rc = qedr_ib_copy_to_udata(udata, &uresp, sizeof(uresp));
 		if (rc) {
 			DP_ERR(dev, "copy error pd_id=0x%x.\n", pd_id);
 			dev->ops->rdma_dealloc_pd(dev->rdma_ctx, pd_id);
@@ -729,7 +737,7 @@ static int qedr_copy_cq_uresp(struct qedr_dev *dev,
 	uresp.db_offset = DB_ADDR_SHIFT(DQ_PWM_OFFSET_UCM_RDMA_CQ_CONS_32BIT);
 	uresp.icid = cq->icid;
 
-	rc = ib_copy_to_udata(udata, &uresp, sizeof(uresp));
+	rc = qedr_ib_copy_to_udata(udata, &uresp, sizeof(uresp));
 	if (rc)
 		DP_ERR(dev, "copy error cqid=0x%x.\n", cq->icid);
 
@@ -1238,7 +1246,7 @@ static int qedr_copy_qp_uresp(struct qedr_dev *dev,
 	uresp.atomic_supported = dev->atomic_cap != IB_ATOMIC_NONE;
 	uresp.qp_id = qp->qp_id;
 
-	rc = ib_copy_to_udata(udata, &uresp, sizeof(uresp));
+	rc = qedr_ib_copy_to_udata(udata, &uresp, sizeof(uresp));
 	if (rc)
 		DP_ERR(dev,
 		       "create qp: failed a copy to user space with qp icid=0x%x.\n",
diff --git a/drivers/infiniband/hw/qib/qib_qp.c b/drivers/infiniband/hw/qib/qib_qp.c
index 5984981e7dd4..a343e3b5d4cb 100644
--- a/drivers/infiniband/hw/qib/qib_qp.c
+++ b/drivers/infiniband/hw/qib/qib_qp.c
@@ -104,10 +104,9 @@ const struct rvt_operation_params qib_post_parms[RVT_OPERATION_MAX] = {
 
 };
 
-static void get_map_page(struct rvt_qpn_table *qpt, struct rvt_qpn_map *map,
-			 gfp_t gfp)
+static void get_map_page(struct rvt_qpn_table *qpt, struct rvt_qpn_map *map)
 {
-	unsigned long page = get_zeroed_page(gfp);
+	unsigned long page = get_zeroed_page(GFP_KERNEL);
 
 	/*
 	 * Free the page if someone raced with us installing it.
@@ -126,7 +125,7 @@ static void get_map_page(struct rvt_qpn_table *qpt, struct rvt_qpn_map *map,
  * zero/one for QP type IB_QPT_SMI/IB_QPT_GSI.
  */
 int qib_alloc_qpn(struct rvt_dev_info *rdi, struct rvt_qpn_table *qpt,
-		  enum ib_qp_type type, u8 port, gfp_t gfp)
+		  enum ib_qp_type type, u8 port)
 {
 	u32 i, offset, max_scan, qpn;
 	struct rvt_qpn_map *map;
@@ -160,7 +159,7 @@ int qib_alloc_qpn(struct rvt_dev_info *rdi, struct rvt_qpn_table *qpt,
 	max_scan = qpt->nmaps - !offset;
 	for (i = 0;;) {
 		if (unlikely(!map->page)) {
-			get_map_page(qpt, map, gfp);
+			get_map_page(qpt, map);
 			if (unlikely(!map->page))
 				break;
 		}
@@ -317,16 +316,16 @@ u32 qib_mtu_from_qp(struct rvt_dev_info *rdi, struct rvt_qp *qp, u32 pmtu)
 	return ib_mtu_enum_to_int(pmtu);
 }
 
-void *qib_qp_priv_alloc(struct rvt_dev_info *rdi, struct rvt_qp *qp, gfp_t gfp)
+void *qib_qp_priv_alloc(struct rvt_dev_info *rdi, struct rvt_qp *qp)
 {
 	struct qib_qp_priv *priv;
 
-	priv = kzalloc(sizeof(*priv), gfp);
+	priv = kzalloc(sizeof(*priv), GFP_KERNEL);
 	if (!priv)
 		return ERR_PTR(-ENOMEM);
 	priv->owner = qp;
 
-	priv->s_hdr = kzalloc(sizeof(*priv->s_hdr), gfp);
+	priv->s_hdr = kzalloc(sizeof(*priv->s_hdr), GFP_KERNEL);
 	if (!priv->s_hdr) {
 		kfree(priv);
 		return ERR_PTR(-ENOMEM);
diff --git a/drivers/infiniband/hw/qib/qib_verbs.h b/drivers/infiniband/hw/qib/qib_verbs.h
index da0db5485ddc..a52fc67b40d7 100644
--- a/drivers/infiniband/hw/qib/qib_verbs.h
+++ b/drivers/infiniband/hw/qib/qib_verbs.h
@@ -274,11 +274,11 @@ int qib_get_counters(struct qib_pportdata *ppd,
  * Functions provided by qib driver for rdmavt to use
  */
 unsigned qib_free_all_qps(struct rvt_dev_info *rdi);
-void *qib_qp_priv_alloc(struct rvt_dev_info *rdi, struct rvt_qp *qp, gfp_t gfp);
+void *qib_qp_priv_alloc(struct rvt_dev_info *rdi, struct rvt_qp *qp);
 void qib_qp_priv_free(struct rvt_dev_info *rdi, struct rvt_qp *qp);
 void qib_notify_qp_reset(struct rvt_qp *qp);
 int qib_alloc_qpn(struct rvt_dev_info *rdi, struct rvt_qpn_table *qpt,
-		  enum ib_qp_type type, u8 port, gfp_t gfp);
+		  enum ib_qp_type type, u8 port);
 void qib_restart_rc(struct rvt_qp *qp, u32 psn, int wait);
 #ifdef CONFIG_DEBUG_FS
 
diff --git a/drivers/infiniband/hw/vmw_pvrdma/pvrdma_cq.c b/drivers/infiniband/hw/vmw_pvrdma/pvrdma_cq.c
index 69bda611d313..90aa326fd7c0 100644
--- a/drivers/infiniband/hw/vmw_pvrdma/pvrdma_cq.c
+++ b/drivers/infiniband/hw/vmw_pvrdma/pvrdma_cq.c
@@ -65,13 +65,28 @@ int pvrdma_req_notify_cq(struct ib_cq *ibcq,
 	struct pvrdma_dev *dev = to_vdev(ibcq->device);
 	struct pvrdma_cq *cq = to_vcq(ibcq);
 	u32 val = cq->cq_handle;
+	unsigned long flags;
+	int has_data = 0;
 
 	val |= (notify_flags & IB_CQ_SOLICITED_MASK) == IB_CQ_SOLICITED ?
 		PVRDMA_UAR_CQ_ARM_SOL : PVRDMA_UAR_CQ_ARM;
 
+	spin_lock_irqsave(&cq->cq_lock, flags);
+
 	pvrdma_write_uar_cq(dev, val);
 
-	return 0;
+	if (notify_flags & IB_CQ_REPORT_MISSED_EVENTS) {
+		unsigned int head;
+
+		has_data = pvrdma_idx_ring_has_data(&cq->ring_state->rx,
+						    cq->ibcq.cqe, &head);
+		if (unlikely(has_data == PVRDMA_INVALID_IDX))
+			dev_err(&dev->pdev->dev, "CQ ring state invalid\n");
+	}
+
+	spin_unlock_irqrestore(&cq->cq_lock, flags);
+
+	return has_data;
 }
 
 /**
diff --git a/drivers/infiniband/sw/rdmavt/qp.c b/drivers/infiniband/sw/rdmavt/qp.c
index 727e81cc2c8f..8876ee7bc326 100644
--- a/drivers/infiniband/sw/rdmavt/qp.c
+++ b/drivers/infiniband/sw/rdmavt/qp.c
@@ -118,10 +118,9 @@ const int ib_rvt_state_ops[IB_QPS_ERR + 1] = {
 EXPORT_SYMBOL(ib_rvt_state_ops);
 
 static void get_map_page(struct rvt_qpn_table *qpt,
-			 struct rvt_qpn_map *map,
-			 gfp_t gfp)
+			 struct rvt_qpn_map *map)
 {
-	unsigned long page = get_zeroed_page(gfp);
+	unsigned long page = get_zeroed_page(GFP_KERNEL);
 
 	/*
 	 * Free the page if someone raced with us installing it.
@@ -173,7 +172,7 @@ static int init_qpn_table(struct rvt_dev_info *rdi, struct rvt_qpn_table *qpt)
 		    rdi->dparms.qpn_res_start, rdi->dparms.qpn_res_end);
 	for (i = rdi->dparms.qpn_res_start; i <= rdi->dparms.qpn_res_end; i++) {
 		if (!map->page) {
-			get_map_page(qpt, map, GFP_KERNEL);
+			get_map_page(qpt, map);
 			if (!map->page) {
 				ret = -ENOMEM;
 				break;
@@ -342,14 +341,14 @@ static inline unsigned mk_qpn(struct rvt_qpn_table *qpt,
  * Return: The queue pair number
  */
 static int alloc_qpn(struct rvt_dev_info *rdi, struct rvt_qpn_table *qpt,
-		     enum ib_qp_type type, u8 port_num, gfp_t gfp)
+		     enum ib_qp_type type, u8 port_num)
 {
 	u32 i, offset, max_scan, qpn;
 	struct rvt_qpn_map *map;
 	u32 ret;
 
 	if (rdi->driver_f.alloc_qpn)
-		return rdi->driver_f.alloc_qpn(rdi, qpt, type, port_num, gfp);
+		return rdi->driver_f.alloc_qpn(rdi, qpt, type, port_num);
 
 	if (type == IB_QPT_SMI || type == IB_QPT_GSI) {
 		unsigned n;
@@ -374,7 +373,7 @@ static int alloc_qpn(struct rvt_dev_info *rdi, struct rvt_qpn_table *qpt,
 	max_scan = qpt->nmaps - !offset;
 	for (i = 0;;) {
 		if (unlikely(!map->page)) {
-			get_map_page(qpt, map, gfp);
+			get_map_page(qpt, map);
 			if (unlikely(!map->page))
 				break;
 		}
@@ -672,7 +671,6 @@ struct ib_qp *rvt_create_qp(struct ib_pd *ibpd,
 	struct ib_qp *ret = ERR_PTR(-ENOMEM);
 	struct rvt_dev_info *rdi = ib_to_rvt(ibpd->device);
 	void *priv = NULL;
-	gfp_t gfp;
 	size_t sqsize;
 
 	if (!rdi)
@@ -680,18 +678,9 @@ struct ib_qp *rvt_create_qp(struct ib_pd *ibpd,
 
 	if (init_attr->cap.max_send_sge > rdi->dparms.props.max_sge ||
 	    init_attr->cap.max_send_wr > rdi->dparms.props.max_qp_wr ||
-	    init_attr->create_flags & ~(IB_QP_CREATE_USE_GFP_NOIO))
+	    init_attr->create_flags)
 		return ERR_PTR(-EINVAL);
 
-	/* GFP_NOIO is applicable to RC QP's only */
-
-	if (init_attr->create_flags & IB_QP_CREATE_USE_GFP_NOIO &&
-	    init_attr->qp_type != IB_QPT_RC)
-		return ERR_PTR(-EINVAL);
-
-	gfp = init_attr->create_flags & IB_QP_CREATE_USE_GFP_NOIO ?
-						GFP_NOIO : GFP_KERNEL;
-
 	/* Check receive queue parameters if no SRQ is specified. */
 	if (!init_attr->srq) {
 		if (init_attr->cap.max_recv_sge > rdi->dparms.props.max_sge ||
@@ -719,14 +708,7 @@ struct ib_qp *rvt_create_qp(struct ib_pd *ibpd,
 		sz = sizeof(struct rvt_sge) *
 			init_attr->cap.max_send_sge +
 			sizeof(struct rvt_swqe);
-		if (gfp == GFP_NOIO)
-			swq = __vmalloc(
-				sqsize * sz,
-				gfp | __GFP_ZERO, PAGE_KERNEL);
-		else
-			swq = vzalloc_node(
-				sqsize * sz,
-				rdi->dparms.node);
+		swq = vzalloc_node(sqsize * sz, rdi->dparms.node);
 		if (!swq)
 			return ERR_PTR(-ENOMEM);
 
@@ -741,7 +723,8 @@ struct ib_qp *rvt_create_qp(struct ib_pd *ibpd,
 		} else if (init_attr->cap.max_recv_sge > 1)
 			sg_list_sz = sizeof(*qp->r_sg_list) *
 				(init_attr->cap.max_recv_sge - 1);
-		qp = kzalloc_node(sz + sg_list_sz, gfp, rdi->dparms.node);
+		qp = kzalloc_node(sz + sg_list_sz, GFP_KERNEL,
+				  rdi->dparms.node);
 		if (!qp)
 			goto bail_swq;
 
@@ -751,7 +734,7 @@ struct ib_qp *rvt_create_qp(struct ib_pd *ibpd,
 				kzalloc_node(
 					sizeof(*qp->s_ack_queue) *
 					 rvt_max_atomic(rdi),
-					gfp,
+					GFP_KERNEL,
 					rdi->dparms.node);
 			if (!qp->s_ack_queue)
 				goto bail_qp;
@@ -766,7 +749,7 @@ struct ib_qp *rvt_create_qp(struct ib_pd *ibpd,
 		 * Driver needs to set up it's private QP structure and do any
 		 * initialization that is needed.
 		 */
-		priv = rdi->driver_f.qp_priv_alloc(rdi, qp, gfp);
+		priv = rdi->driver_f.qp_priv_alloc(rdi, qp);
 		if (IS_ERR(priv)) {
 			ret = priv;
 			goto bail_qp;
@@ -786,11 +769,6 @@ struct ib_qp *rvt_create_qp(struct ib_pd *ibpd,
 				qp->r_rq.wq = vmalloc_user(
 						sizeof(struct rvt_rwq) +
 						qp->r_rq.size * sz);
-			else if (gfp == GFP_NOIO)
-				qp->r_rq.wq = __vmalloc(
-						sizeof(struct rvt_rwq) +
-						qp->r_rq.size * sz,
-						gfp | __GFP_ZERO, PAGE_KERNEL);
 			else
 				qp->r_rq.wq = vzalloc_node(
 						sizeof(struct rvt_rwq) +
@@ -824,7 +802,7 @@ struct ib_qp *rvt_create_qp(struct ib_pd *ibpd,
 
 		err = alloc_qpn(rdi, &rdi->qp_dev->qpn_table,
 				init_attr->qp_type,
-				init_attr->port_num, gfp);
+				init_attr->port_num);
 		if (err < 0) {
 			ret = ERR_PTR(err);
 			goto bail_rq_wq;
@@ -1280,9 +1258,7 @@ int rvt_modify_qp(struct ib_qp *ibqp, struct ib_qp_attr *attr,
 
 	if (attr_mask & IB_QP_TIMEOUT) {
 		qp->timeout = attr->timeout;
-		qp->timeout_jiffies =
-			usecs_to_jiffies((4096UL * (1UL << qp->timeout)) /
-				1000UL);
+		qp->timeout_jiffies = rvt_timeout_to_jiffies(qp->timeout);
 	}
 
 	if (attr_mask & IB_QP_QKEY)
diff --git a/drivers/infiniband/sw/rxe/rxe_net.c b/drivers/infiniband/sw/rxe/rxe_net.c
index c3a140ed4df2..08f3f90d2912 100644
--- a/drivers/infiniband/sw/rxe/rxe_net.c
+++ b/drivers/infiniband/sw/rxe/rxe_net.c
@@ -441,6 +441,8 @@ static void rxe_skb_tx_dtor(struct sk_buff *skb)
 	if (unlikely(qp->need_req_skb &&
 		     skb_out < RXE_INFLIGHT_SKBS_PER_QP_LOW))
 		rxe_run_task(&qp->req.task, 1);
+
+	rxe_drop_ref(qp);
 }
 
 int rxe_send(struct rxe_dev *rxe, struct rxe_pkt_info *pkt, struct sk_buff *skb)
@@ -473,6 +475,7 @@ int rxe_send(struct rxe_dev *rxe, struct rxe_pkt_info *pkt, struct sk_buff *skb)
 		return -EAGAIN;
 	}
 
+	rxe_add_ref(pkt->qp);
 	atomic_inc(&pkt->qp->skb_out);
 	kfree_skb(skb);
 
diff --git a/drivers/infiniband/sw/rxe/rxe_resp.c b/drivers/infiniband/sw/rxe/rxe_resp.c
index 23039768f541..a958ee918a49 100644
--- a/drivers/infiniband/sw/rxe/rxe_resp.c
+++ b/drivers/infiniband/sw/rxe/rxe_resp.c
@@ -995,7 +995,9 @@ static int send_atomic_ack(struct rxe_qp *qp, struct rxe_pkt_info *pkt,
 	free_rd_atomic_resource(qp, res);
 	rxe_advance_resp_resource(qp);
 
-	memcpy(SKB_TO_PKT(skb), &ack_pkt, sizeof(skb->cb));
+	memcpy(SKB_TO_PKT(skb), &ack_pkt, sizeof(ack_pkt));
+	memset((unsigned char *)SKB_TO_PKT(skb) + sizeof(ack_pkt), 0,
+	       sizeof(skb->cb) - sizeof(ack_pkt));
 
 	res->type = RXE_ATOMIC_MASK;
 	res->atomic.skb = skb;
@@ -1217,6 +1219,9 @@ void rxe_drain_req_pkts(struct rxe_qp *qp, bool notify)
 		kfree_skb(skb);
 	}
 
+	if (notify)
+		return;
+
 	while (!qp->srq && qp->rq.queue && queue_head(qp->rq.queue))
 		advance_consumer(qp->rq.queue);
 }
diff --git a/drivers/infiniband/sw/rxe/rxe_verbs.c b/drivers/infiniband/sw/rxe/rxe_verbs.c
index 073e66783f1d..af90a7d42b96 100644
--- a/drivers/infiniband/sw/rxe/rxe_verbs.c
+++ b/drivers/infiniband/sw/rxe/rxe_verbs.c
@@ -914,6 +914,9 @@ static int rxe_post_recv(struct ib_qp *ibqp, struct ib_recv_wr *wr,
 
 	spin_unlock_irqrestore(&rq->producer_lock, flags);
 
+	if (qp->resp.state == QP_STATE_ERROR)
+		rxe_run_task(&qp->resp.task, 1);
+
 err1:
 	return err;
 }
@@ -1240,6 +1243,8 @@ int rxe_register_device(struct rxe_dev *rxe)
 	addrconf_addr_eui48((unsigned char *)&dev->node_guid,
 			    rxe->ndev->dev_addr);
 	dev->dev.dma_ops = &dma_virt_ops;
+	dma_coerce_mask_and_coherent(&dev->dev,
+				     dma_get_required_mask(dev->dev.parent));
 
 	dev->uverbs_abi_ver = RXE_UVERBS_ABI_VERSION;
 	dev->uverbs_cmd_mask = BIT_ULL(IB_USER_VERBS_CMD_GET_CONTEXT)
diff --git a/drivers/infiniband/ulp/ipoib/ipoib.h b/drivers/infiniband/ulp/ipoib/ipoib.h
index ff50a7bd66d8..7ac25059c40f 100644
--- a/drivers/infiniband/ulp/ipoib/ipoib.h
+++ b/drivers/infiniband/ulp/ipoib/ipoib.h
@@ -336,6 +336,7 @@ struct ipoib_dev_priv {
 	unsigned long flags;
 
 	struct rw_semaphore vlan_rwsem;
+	struct mutex mcast_mutex;
 
 	struct rb_root  path_tree;
 	struct list_head path_list;
diff --git a/drivers/infiniband/ulp/ipoib/ipoib_cm.c b/drivers/infiniband/ulp/ipoib/ipoib_cm.c
index 7cbcfdac6529..d69410c2ed97 100644
--- a/drivers/infiniband/ulp/ipoib/ipoib_cm.c
+++ b/drivers/infiniband/ulp/ipoib/ipoib_cm.c
@@ -39,6 +39,7 @@
 #include <linux/vmalloc.h>
 #include <linux/moduleparam.h>
 #include <linux/sched/signal.h>
+#include <linux/sched/mm.h>
 
 #include "ipoib.h"
 
@@ -510,7 +511,6 @@ static int ipoib_cm_rx_handler(struct ib_cm_id *cm_id,
 	case IB_CM_REQ_RECEIVED:
 		return ipoib_cm_req_handler(cm_id, event);
 	case IB_CM_DREQ_RECEIVED:
-		p = cm_id->context;
 		ib_send_cm_drep(cm_id, NULL, 0);
 		/* Fall through */
 	case IB_CM_REJ_RECEIVED:
@@ -954,7 +954,7 @@ void ipoib_cm_dev_stop(struct net_device *dev)
 			break;
 		}
 		spin_unlock_irq(&priv->lock);
-		msleep(1);
+		usleep_range(1000, 2000);
 		ipoib_drain_cq(dev);
 		spin_lock_irq(&priv->lock);
 	}
@@ -1047,9 +1047,8 @@ static struct ib_qp *ipoib_cm_create_tx_qp(struct net_device *dev, struct ipoib_
 		.sq_sig_type		= IB_SIGNAL_ALL_WR,
 		.qp_type		= IB_QPT_RC,
 		.qp_context		= tx,
-		.create_flags		= IB_QP_CREATE_USE_GFP_NOIO
+		.create_flags		= 0
 	};
-
 	struct ib_qp *tx_qp;
 
 	if (dev->features & NETIF_F_SG)
@@ -1057,10 +1056,6 @@ static struct ib_qp *ipoib_cm_create_tx_qp(struct net_device *dev, struct ipoib_
 			min_t(u32, priv->ca->attrs.max_sge, MAX_SKB_FRAGS + 1);
 
 	tx_qp = ib_create_qp(priv->pd, &attr);
-	if (PTR_ERR(tx_qp) == -EINVAL) {
-		attr.create_flags &= ~IB_QP_CREATE_USE_GFP_NOIO;
-		tx_qp = ib_create_qp(priv->pd, &attr);
-	}
 	tx->max_send_sge = attr.cap.max_send_sge;
 	return tx_qp;
 }
@@ -1131,10 +1126,11 @@ static int ipoib_cm_tx_init(struct ipoib_cm_tx *p, u32 qpn,
 			    struct sa_path_rec *pathrec)
 {
 	struct ipoib_dev_priv *priv = ipoib_priv(p->dev);
+	unsigned int noio_flag;
 	int ret;
 
-	p->tx_ring = __vmalloc(ipoib_sendq_size * sizeof *p->tx_ring,
-			       GFP_NOIO, PAGE_KERNEL);
+	noio_flag = memalloc_noio_save();
+	p->tx_ring = vzalloc(ipoib_sendq_size * sizeof(*p->tx_ring));
 	if (!p->tx_ring) {
 		ret = -ENOMEM;
 		goto err_tx;
@@ -1142,9 +1138,10 @@ static int ipoib_cm_tx_init(struct ipoib_cm_tx *p, u32 qpn,
 	memset(p->tx_ring, 0, ipoib_sendq_size * sizeof *p->tx_ring);
 
 	p->qp = ipoib_cm_create_tx_qp(p->dev, p);
+	memalloc_noio_restore(noio_flag);
 	if (IS_ERR(p->qp)) {
 		ret = PTR_ERR(p->qp);
-		ipoib_warn(priv, "failed to allocate tx qp: %d\n", ret);
+		ipoib_warn(priv, "failed to create tx qp: %d\n", ret);
 		goto err_qp;
 	}
 
@@ -1206,7 +1203,7 @@ static void ipoib_cm_tx_destroy(struct ipoib_cm_tx *p)
 				goto timeout;
 			}
 
-			msleep(1);
+			usleep_range(1000, 2000);
 		}
 	}
 
diff --git a/drivers/infiniband/ulp/ipoib/ipoib_ethtool.c b/drivers/infiniband/ulp/ipoib/ipoib_ethtool.c
index 7871379342f4..184a22f48027 100644
--- a/drivers/infiniband/ulp/ipoib/ipoib_ethtool.c
+++ b/drivers/infiniband/ulp/ipoib/ipoib_ethtool.c
@@ -52,7 +52,8 @@ static const struct ipoib_stats ipoib_gstrings_stats[] = {
 	IPOIB_NETDEV_STAT(tx_bytes),
 	IPOIB_NETDEV_STAT(tx_errors),
 	IPOIB_NETDEV_STAT(rx_dropped),
-	IPOIB_NETDEV_STAT(tx_dropped)
+	IPOIB_NETDEV_STAT(tx_dropped),
+	IPOIB_NETDEV_STAT(multicast),
 };
 
 #define IPOIB_GLOBAL_STATS_LEN	ARRAY_SIZE(ipoib_gstrings_stats)
diff --git a/drivers/infiniband/ulp/ipoib/ipoib_ib.c b/drivers/infiniband/ulp/ipoib/ipoib_ib.c
index efe7402f4885..2e075377242e 100644
--- a/drivers/infiniband/ulp/ipoib/ipoib_ib.c
+++ b/drivers/infiniband/ulp/ipoib/ipoib_ib.c
@@ -256,6 +256,8 @@ static void ipoib_ib_handle_rx_wc(struct net_device *dev, struct ib_wc *wc)
 
 	++dev->stats.rx_packets;
 	dev->stats.rx_bytes += skb->len;
+	if (skb->pkt_type == PACKET_MULTICAST)
+		dev->stats.multicast++;
 
 	skb->dev = dev;
 	if ((dev->features & NETIF_F_RXCSUM) &&
@@ -709,6 +711,27 @@ static int recvs_pending(struct net_device *dev)
 	return pending;
 }
 
+static void check_qp_movement_and_print(struct ipoib_dev_priv *priv,
+					struct ib_qp *qp,
+					enum ib_qp_state new_state)
+{
+	struct ib_qp_attr qp_attr;
+	struct ib_qp_init_attr query_init_attr;
+	int ret;
+
+	ret = ib_query_qp(qp, &qp_attr, IB_QP_STATE, &query_init_attr);
+	if (ret) {
+		ipoib_warn(priv, "%s: Failed to query QP\n", __func__);
+		return;
+	}
+	/* print according to the new-state and the previous state.*/
+	if (new_state == IB_QPS_ERR && qp_attr.qp_state == IB_QPS_RESET)
+		ipoib_dbg(priv, "Failed modify QP, IB_QPS_RESET to IB_QPS_ERR, acceptable\n");
+	else
+		ipoib_warn(priv, "Failed to modify QP to state: %d from state: %d\n",
+			   new_state, qp_attr.qp_state);
+}
+
 int ipoib_ib_dev_stop_default(struct net_device *dev)
 {
 	struct ipoib_dev_priv *priv = ipoib_priv(dev);
@@ -728,7 +751,7 @@ int ipoib_ib_dev_stop_default(struct net_device *dev)
 	 */
 	qp_attr.qp_state = IB_QPS_ERR;
 	if (ib_modify_qp(priv->qp, &qp_attr, IB_QP_STATE))
-		ipoib_warn(priv, "Failed to modify QP to ERROR state\n");
+		check_qp_movement_and_print(priv, priv->qp, IB_QPS_ERR);
 
 	/* Wait for all sends and receives to complete */
 	begin = jiffies;
@@ -770,7 +793,7 @@ int ipoib_ib_dev_stop_default(struct net_device *dev)
 
 		ipoib_drain_cq(dev);
 
-		msleep(1);
+		usleep_range(1000, 2000);
 	}
 
 	ipoib_dbg(priv, "All sends and receives done.\n");
diff --git a/drivers/infiniband/ulp/ipoib/ipoib_main.c b/drivers/infiniband/ulp/ipoib/ipoib_main.c
index 6e86eeee370e..6c77df34869d 100644
--- a/drivers/infiniband/ulp/ipoib/ipoib_main.c
+++ b/drivers/infiniband/ulp/ipoib/ipoib_main.c
@@ -233,6 +233,7 @@ static netdev_features_t ipoib_fix_features(struct net_device *dev, netdev_featu
 static int ipoib_change_mtu(struct net_device *dev, int new_mtu)
 {
 	struct ipoib_dev_priv *priv = ipoib_priv(dev);
+	int ret = 0;
 
 	/* dev->mtu > 2K ==> connected mode */
 	if (ipoib_cm_admin_enabled(dev)) {
@@ -256,9 +257,34 @@ static int ipoib_change_mtu(struct net_device *dev, int new_mtu)
 		ipoib_dbg(priv, "MTU must be smaller than the underlying "
 				"link layer MTU - 4 (%u)\n", priv->mcast_mtu);
 
-	dev->mtu = min(priv->mcast_mtu, priv->admin_mtu);
+	new_mtu = min(priv->mcast_mtu, priv->admin_mtu);
 
-	return 0;
+	if (priv->rn_ops->ndo_change_mtu) {
+		bool carrier_status = netif_carrier_ok(dev);
+
+		netif_carrier_off(dev);
+
+		/* notify lower level on the real mtu */
+		ret = priv->rn_ops->ndo_change_mtu(dev, new_mtu);
+
+		if (carrier_status)
+			netif_carrier_on(dev);
+	} else {
+		dev->mtu = new_mtu;
+	}
+
+	return ret;
+}
+
+static void ipoib_get_stats(struct net_device *dev,
+			    struct rtnl_link_stats64 *stats)
+{
+	struct ipoib_dev_priv *priv = ipoib_priv(dev);
+
+	if (priv->rn_ops->ndo_get_stats64)
+		priv->rn_ops->ndo_get_stats64(dev, stats);
+	else
+		netdev_stats_to_stats64(stats, &dev->stats);
 }
 
 /* Called with an RCU read lock taken */
@@ -1534,6 +1560,7 @@ static void ipoib_flush_neighs(struct ipoib_dev_priv *priv)
 	int i, wait_flushed = 0;
 
 	init_completion(&priv->ntbl.flushed);
+	set_bit(IPOIB_NEIGH_TBL_FLUSH, &priv->flags);
 
 	spin_lock_irqsave(&priv->lock, flags);
 
@@ -1578,7 +1605,6 @@ static void ipoib_neigh_hash_uninit(struct net_device *dev)
 
 	ipoib_dbg(priv, "ipoib_neigh_hash_uninit\n");
 	init_completion(&priv->ntbl.deleted);
-	set_bit(IPOIB_NEIGH_TBL_FLUSH, &priv->flags);
 
 	/* Stop GC if called at init fail need to cancel work */
 	stopped = test_and_set_bit(IPOIB_STOP_NEIGH_GC, &priv->flags);
@@ -1808,6 +1834,7 @@ static const struct net_device_ops ipoib_netdev_ops_pf = {
 	.ndo_get_vf_stats	 = ipoib_get_vf_stats,
 	.ndo_set_vf_guid	 = ipoib_set_vf_guid,
 	.ndo_set_mac_address	 = ipoib_set_mac,
+	.ndo_get_stats64	 = ipoib_get_stats,
 };
 
 static const struct net_device_ops ipoib_netdev_ops_vf = {
@@ -1820,6 +1847,7 @@ static const struct net_device_ops ipoib_netdev_ops_vf = {
 	.ndo_tx_timeout		 = ipoib_timeout,
 	.ndo_set_rx_mode	 = ipoib_set_mcast_list,
 	.ndo_get_iflink		 = ipoib_get_iflink,
+	.ndo_get_stats64	 = ipoib_get_stats,
 };
 
 void ipoib_setup_common(struct net_device *dev)
@@ -1850,6 +1878,7 @@ static void ipoib_build_priv(struct net_device *dev)
 	priv->dev = dev;
 	spin_lock_init(&priv->lock);
 	init_rwsem(&priv->vlan_rwsem);
+	mutex_init(&priv->mcast_mutex);
 
 	INIT_LIST_HEAD(&priv->path_list);
 	INIT_LIST_HEAD(&priv->child_intfs);
@@ -2146,14 +2175,14 @@ static struct net_device *ipoib_add_port(const char *format,
 	priv->dev->dev_id = port - 1;
 
 	result = ib_query_port(hca, port, &attr);
-	if (!result)
-		priv->max_ib_mtu = ib_mtu_enum_to_int(attr.max_mtu);
-	else {
+	if (result) {
 		printk(KERN_WARNING "%s: ib_query_port %d failed\n",
 		       hca->name, port);
 		goto device_init_failed;
 	}
 
+	priv->max_ib_mtu = ib_mtu_enum_to_int(attr.max_mtu);
+
 	/* MTU will be reset when mcast join happens */
 	priv->dev->mtu  = IPOIB_UD_MTU(priv->max_ib_mtu);
 	priv->mcast_mtu  = priv->admin_mtu = priv->dev->mtu;
@@ -2184,12 +2213,14 @@ static struct net_device *ipoib_add_port(const char *format,
 		printk(KERN_WARNING "%s: ib_query_gid port %d failed (ret = %d)\n",
 		       hca->name, port, result);
 		goto device_init_failed;
-	} else
-		memcpy(priv->dev->dev_addr + 4, priv->local_gid.raw, sizeof (union ib_gid));
+	}
+
+	memcpy(priv->dev->dev_addr + 4, priv->local_gid.raw,
+	       sizeof(union ib_gid));
 	set_bit(IPOIB_FLAG_DEV_ADDR_SET, &priv->flags);
 
 	result = ipoib_dev_init(priv->dev, hca, port);
-	if (result < 0) {
+	if (result) {
 		printk(KERN_WARNING "%s: failed to initialize port %d (ret = %d)\n",
 		       hca->name, port, result);
 		goto device_init_failed;
@@ -2212,6 +2243,7 @@ static struct net_device *ipoib_add_port(const char *format,
 		goto register_failed;
 	}
 
+	result = -ENOMEM;
 	if (ipoib_cm_add_mode_attr(priv->dev))
 		goto sysfs_failed;
 	if (ipoib_add_pkey_attr(priv->dev))
@@ -2337,6 +2369,7 @@ static int __init ipoib_init_module(void)
 	ipoib_sendq_size = max3(ipoib_sendq_size, 2 * MAX_SEND_CQE, IPOIB_MIN_QUEUE_SIZE);
 #ifdef CONFIG_INFINIBAND_IPOIB_CM
 	ipoib_max_conn_qp = min(ipoib_max_conn_qp, IPOIB_CM_MAX_CONN_QP);
+	ipoib_max_conn_qp = max(ipoib_max_conn_qp, 0);
 #endif
 
 	/*
diff --git a/drivers/infiniband/ulp/ipoib/ipoib_multicast.c b/drivers/infiniband/ulp/ipoib/ipoib_multicast.c
index 057f58e6afca..93e149efc1f5 100644
--- a/drivers/infiniband/ulp/ipoib/ipoib_multicast.c
+++ b/drivers/infiniband/ulp/ipoib/ipoib_multicast.c
@@ -684,15 +684,10 @@ void ipoib_mcast_start_thread(struct net_device *dev)
 int ipoib_mcast_stop_thread(struct net_device *dev)
 {
 	struct ipoib_dev_priv *priv = ipoib_priv(dev);
-	unsigned long flags;
 
 	ipoib_dbg_mcast(priv, "stopping multicast thread\n");
 
-	spin_lock_irqsave(&priv->lock, flags);
-	cancel_delayed_work(&priv->mcast_task);
-	spin_unlock_irqrestore(&priv->lock, flags);
-
-	flush_workqueue(priv->wq);
+	cancel_delayed_work_sync(&priv->mcast_task);
 
 	return 0;
 }
@@ -748,6 +743,14 @@ void ipoib_mcast_remove_list(struct list_head *remove_list)
 {
 	struct ipoib_mcast *mcast, *tmcast;
 
+	/*
+	 * make sure the in-flight joins have finished before we attempt
+	 * to leave
+	 */
+	list_for_each_entry_safe(mcast, tmcast, remove_list, list)
+		if (test_bit(IPOIB_MCAST_FLAG_BUSY, &mcast->flags))
+			wait_for_completion(&mcast->done);
+
 	list_for_each_entry_safe(mcast, tmcast, remove_list, list) {
 		ipoib_mcast_leave(mcast->dev, mcast);
 		ipoib_mcast_free(mcast);
@@ -838,6 +841,7 @@ void ipoib_mcast_dev_flush(struct net_device *dev)
 	struct ipoib_mcast *mcast, *tmcast;
 	unsigned long flags;
 
+	mutex_lock(&priv->mcast_mutex);
 	ipoib_dbg_mcast(priv, "flushing multicast list\n");
 
 	spin_lock_irqsave(&priv->lock, flags);
@@ -856,15 +860,8 @@ void ipoib_mcast_dev_flush(struct net_device *dev)
 
 	spin_unlock_irqrestore(&priv->lock, flags);
 
-	/*
-	 * make sure the in-flight joins have finished before we attempt
-	 * to leave
-	 */
-	list_for_each_entry_safe(mcast, tmcast, &remove_list, list)
-		if (test_bit(IPOIB_MCAST_FLAG_BUSY, &mcast->flags))
-			wait_for_completion(&mcast->done);
-
 	ipoib_mcast_remove_list(&remove_list);
+	mutex_unlock(&priv->mcast_mutex);
 }
 
 static int ipoib_mcast_addr_is_valid(const u8 *addr, const u8 *broadcast)
@@ -982,14 +979,6 @@ void ipoib_mcast_restart_task(struct work_struct *work)
 	netif_addr_unlock(dev);
 	local_irq_restore(flags);
 
-	/*
-	 * make sure the in-flight joins have finished before we attempt
-	 * to leave
-	 */
-	list_for_each_entry_safe(mcast, tmcast, &remove_list, list)
-		if (test_bit(IPOIB_MCAST_FLAG_BUSY, &mcast->flags))
-			wait_for_completion(&mcast->done);
-
 	ipoib_mcast_remove_list(&remove_list);
 
 	/*
diff --git a/drivers/infiniband/ulp/iser/iscsi_iser.c b/drivers/infiniband/ulp/iser/iscsi_iser.c
index 5a887efb4bdf..37b33d708c2d 100644
--- a/drivers/infiniband/ulp/iser/iscsi_iser.c
+++ b/drivers/infiniband/ulp/iser/iscsi_iser.c
@@ -83,6 +83,7 @@ static struct scsi_host_template iscsi_iser_sht;
 static struct iscsi_transport iscsi_iser_transport;
 static struct scsi_transport_template *iscsi_iser_scsi_transport;
 static struct workqueue_struct *release_wq;
+static DEFINE_MUTEX(unbind_iser_conn_mutex);
 struct iser_global ig;
 
 int iser_debug_level = 0;
@@ -550,12 +551,14 @@ iscsi_iser_conn_stop(struct iscsi_cls_conn *cls_conn, int flag)
 	 */
 	if (iser_conn) {
 		mutex_lock(&iser_conn->state_mutex);
+		mutex_lock(&unbind_iser_conn_mutex);
 		iser_conn_terminate(iser_conn);
 		iscsi_conn_stop(cls_conn, flag);
 
 		/* unbind */
 		iser_conn->iscsi_conn = NULL;
 		conn->dd_data = NULL;
+		mutex_unlock(&unbind_iser_conn_mutex);
 
 		complete(&iser_conn->stop_completion);
 		mutex_unlock(&iser_conn->state_mutex);
@@ -977,13 +980,21 @@ static int iscsi_iser_slave_alloc(struct scsi_device *sdev)
 	struct iser_conn *iser_conn;
 	struct ib_device *ib_dev;
 
+	mutex_lock(&unbind_iser_conn_mutex);
+
 	session = starget_to_session(scsi_target(sdev))->dd_data;
 	iser_conn = session->leadconn->dd_data;
+	if (!iser_conn) {
+		mutex_unlock(&unbind_iser_conn_mutex);
+		return -ENOTCONN;
+	}
 	ib_dev = iser_conn->ib_conn.device->ib_device;
 
 	if (!(ib_dev->attrs.device_cap_flags & IB_DEVICE_SG_GAPS_REG))
 		blk_queue_virt_boundary(sdev->request_queue, ~MASK_4K);
 
+	mutex_unlock(&unbind_iser_conn_mutex);
+
 	return 0;
 }
 
diff --git a/drivers/infiniband/ulp/iser/iser_initiator.c b/drivers/infiniband/ulp/iser/iser_initiator.c
index 12ed62ce9ff7..2a07692007bd 100644
--- a/drivers/infiniband/ulp/iser/iser_initiator.c
+++ b/drivers/infiniband/ulp/iser/iser_initiator.c
@@ -137,8 +137,10 @@ iser_prepare_write_cmd(struct iscsi_task *task,
 
 	if (unsol_sz < edtl) {
 		hdr->flags     |= ISER_WSV;
-		hdr->write_stag = cpu_to_be32(mem_reg->rkey);
-		hdr->write_va   = cpu_to_be64(mem_reg->sge.addr + unsol_sz);
+		if (buf_out->data_len > imm_sz) {
+			hdr->write_stag = cpu_to_be32(mem_reg->rkey);
+			hdr->write_va = cpu_to_be64(mem_reg->sge.addr + unsol_sz);
+		}
 
 		iser_dbg("Cmd itt:%d, WRITE tags, RKEY:%#.4X "
 			 "VA:%#llX + unsol:%d\n",
diff --git a/drivers/infiniband/ulp/iser/iser_verbs.c b/drivers/infiniband/ulp/iser/iser_verbs.c
index c538a38c91ce..26a004e97ae0 100644
--- a/drivers/infiniband/ulp/iser/iser_verbs.c
+++ b/drivers/infiniband/ulp/iser/iser_verbs.c
@@ -708,8 +708,14 @@ iser_calc_scsi_params(struct iser_conn *iser_conn,
 	unsigned short sg_tablesize, sup_sg_tablesize;
 
 	sg_tablesize = DIV_ROUND_UP(max_sectors * 512, SIZE_4K);
-	sup_sg_tablesize = min_t(unsigned, ISCSI_ISER_MAX_SG_TABLESIZE,
-				 device->ib_device->attrs.max_fast_reg_page_list_len);
+	if (device->ib_device->attrs.device_cap_flags &
+			IB_DEVICE_MEM_MGT_EXTENSIONS)
+		sup_sg_tablesize =
+			min_t(
+			 uint, ISCSI_ISER_MAX_SG_TABLESIZE,
+			 device->ib_device->attrs.max_fast_reg_page_list_len);
+	else
+		sup_sg_tablesize = ISCSI_ISER_MAX_SG_TABLESIZE;
 
 	iser_conn->scsi_sg_tablesize = min(sg_tablesize, sup_sg_tablesize);
 }
diff --git a/drivers/infiniband/ulp/isert/ib_isert.c b/drivers/infiniband/ulp/isert/ib_isert.c
index fcbed35e95a8..0e662656ef42 100644
--- a/drivers/infiniband/ulp/isert/ib_isert.c
+++ b/drivers/infiniband/ulp/isert/ib_isert.c
@@ -1452,7 +1452,7 @@ static void
 isert_login_recv_done(struct ib_cq *cq, struct ib_wc *wc)
 {
 	struct isert_conn *isert_conn = wc->qp->qp_context;
-	struct ib_device *ib_dev = isert_conn->cm_id->device;
+	struct ib_device *ib_dev = isert_conn->device->ib_device;
 
 	if (unlikely(wc->status != IB_WC_SUCCESS)) {
 		isert_print_wc(wc, "login recv");
diff --git a/drivers/infiniband/ulp/srpt/ib_srpt.c b/drivers/infiniband/ulp/srpt/ib_srpt.c
index 1ced0731c140..402275be0931 100644
--- a/drivers/infiniband/ulp/srpt/ib_srpt.c
+++ b/drivers/infiniband/ulp/srpt/ib_srpt.c
@@ -1157,8 +1157,8 @@ static int srpt_abort_cmd(struct srpt_send_ioctx *ioctx)
 	}
 	spin_unlock_irqrestore(&ioctx->spinlock, flags);
 
-	pr_debug("Aborting cmd with state %d and tag %lld\n", state,
-		 ioctx->cmd.tag);
+	pr_debug("Aborting cmd with state %d -> %d and tag %lld\n", state,
+		 ioctx->state, ioctx->cmd.tag);
 
 	switch (state) {
 	case SRPT_STATE_NEW:
diff --git a/drivers/input/keyboard/gpio_keys.c b/drivers/input/keyboard/gpio_keys.c
index da3d362f21b1..a047b9af8369 100644
--- a/drivers/input/keyboard/gpio_keys.c
+++ b/drivers/input/keyboard/gpio_keys.c
@@ -48,6 +48,7 @@ struct gpio_button_data {
 	spinlock_t lock;
 	bool disabled;
 	bool key_pressed;
+	bool suspended;
 };
 
 struct gpio_keys_drvdata {
@@ -396,8 +397,20 @@ static irqreturn_t gpio_keys_gpio_isr(int irq, void *dev_id)
 
 	BUG_ON(irq != bdata->irq);
 
-	if (bdata->button->wakeup)
+	if (bdata->button->wakeup) {
+		const struct gpio_keys_button *button = bdata->button;
+
 		pm_stay_awake(bdata->input->dev.parent);
+		if (bdata->suspended  &&
+		    (button->type == 0 || button->type == EV_KEY)) {
+			/*
+			 * Simulate wakeup key press in case the key has
+			 * already released by the time we got interrupt
+			 * handler to run.
+			 */
+			input_report_key(bdata->input, button->code, 1);
+		}
+	}
 
 	mod_delayed_work(system_wq,
 			 &bdata->work,
@@ -855,6 +868,7 @@ static int __maybe_unused gpio_keys_suspend(struct device *dev)
 			struct gpio_button_data *bdata = &ddata->data[i];
 			if (bdata->button->wakeup)
 				enable_irq_wake(bdata->irq);
+			bdata->suspended = true;
 		}
 	} else {
 		mutex_lock(&input->mutex);
@@ -878,6 +892,7 @@ static int __maybe_unused gpio_keys_resume(struct device *dev)
 			struct gpio_button_data *bdata = &ddata->data[i];
 			if (bdata->button->wakeup)
 				disable_irq_wake(bdata->irq);
+			bdata->suspended = false;
 		}
 	} else {
 		mutex_lock(&input->mutex);
diff --git a/drivers/input/misc/xen-kbdfront.c b/drivers/input/misc/xen-kbdfront.c
index eb770613a9bd..fa130e7b734c 100644
--- a/drivers/input/misc/xen-kbdfront.c
+++ b/drivers/input/misc/xen-kbdfront.c
@@ -17,6 +17,7 @@
 #include <linux/errno.h>
 #include <linux/module.h>
 #include <linux/input.h>
+#include <linux/input/mt.h>
 #include <linux/slab.h>
 
 #include <asm/xen/hypervisor.h>
@@ -34,11 +35,14 @@
 struct xenkbd_info {
 	struct input_dev *kbd;
 	struct input_dev *ptr;
+	struct input_dev *mtouch;
 	struct xenkbd_page *page;
 	int gref;
 	int irq;
 	struct xenbus_device *xbdev;
 	char phys[32];
+	/* current MT slot/contact ID we are injecting events in */
+	int mtouch_cur_contact_id;
 };
 
 enum { KPARAM_X, KPARAM_Y, KPARAM_CNT };
@@ -56,6 +60,112 @@ static void xenkbd_disconnect_backend(struct xenkbd_info *);
  * to do that.
  */
 
+static void xenkbd_handle_motion_event(struct xenkbd_info *info,
+				       struct xenkbd_motion *motion)
+{
+	input_report_rel(info->ptr, REL_X, motion->rel_x);
+	input_report_rel(info->ptr, REL_Y, motion->rel_y);
+	if (motion->rel_z)
+		input_report_rel(info->ptr, REL_WHEEL, -motion->rel_z);
+	input_sync(info->ptr);
+}
+
+static void xenkbd_handle_position_event(struct xenkbd_info *info,
+					 struct xenkbd_position *pos)
+{
+	input_report_abs(info->ptr, ABS_X, pos->abs_x);
+	input_report_abs(info->ptr, ABS_Y, pos->abs_y);
+	if (pos->rel_z)
+		input_report_rel(info->ptr, REL_WHEEL, -pos->rel_z);
+	input_sync(info->ptr);
+}
+
+static void xenkbd_handle_key_event(struct xenkbd_info *info,
+				    struct xenkbd_key *key)
+{
+	struct input_dev *dev;
+
+	if (test_bit(key->keycode, info->ptr->keybit)) {
+		dev = info->ptr;
+	} else if (test_bit(key->keycode, info->kbd->keybit)) {
+		dev = info->kbd;
+	} else {
+		pr_warn("unhandled keycode 0x%x\n", key->keycode);
+		return;
+	}
+
+	input_report_key(dev, key->keycode, key->pressed);
+	input_sync(dev);
+}
+
+static void xenkbd_handle_mt_event(struct xenkbd_info *info,
+				   struct xenkbd_mtouch *mtouch)
+{
+	if (unlikely(!info->mtouch))
+		return;
+
+	if (mtouch->contact_id != info->mtouch_cur_contact_id) {
+		info->mtouch_cur_contact_id = mtouch->contact_id;
+		input_mt_slot(info->mtouch, mtouch->contact_id);
+	}
+
+	switch (mtouch->event_type) {
+	case XENKBD_MT_EV_DOWN:
+		input_mt_report_slot_state(info->mtouch, MT_TOOL_FINGER, true);
+		/* fall through */
+
+	case XENKBD_MT_EV_MOTION:
+		input_report_abs(info->mtouch, ABS_MT_POSITION_X,
+				 mtouch->u.pos.abs_x);
+		input_report_abs(info->mtouch, ABS_MT_POSITION_Y,
+				 mtouch->u.pos.abs_y);
+		break;
+
+	case XENKBD_MT_EV_SHAPE:
+		input_report_abs(info->mtouch, ABS_MT_TOUCH_MAJOR,
+				 mtouch->u.shape.major);
+		input_report_abs(info->mtouch, ABS_MT_TOUCH_MINOR,
+				 mtouch->u.shape.minor);
+		break;
+
+	case XENKBD_MT_EV_ORIENT:
+		input_report_abs(info->mtouch, ABS_MT_ORIENTATION,
+				 mtouch->u.orientation);
+		break;
+
+	case XENKBD_MT_EV_UP:
+		input_mt_report_slot_state(info->mtouch, MT_TOOL_FINGER, false);
+		break;
+
+	case XENKBD_MT_EV_SYN:
+		input_mt_sync_frame(info->mtouch);
+		input_sync(info->mtouch);
+		break;
+	}
+}
+
+static void xenkbd_handle_event(struct xenkbd_info *info,
+				union xenkbd_in_event *event)
+{
+	switch (event->type) {
+	case XENKBD_TYPE_MOTION:
+		xenkbd_handle_motion_event(info, &event->motion);
+		break;
+
+	case XENKBD_TYPE_KEY:
+		xenkbd_handle_key_event(info, &event->key);
+		break;
+
+	case XENKBD_TYPE_POS:
+		xenkbd_handle_position_event(info, &event->pos);
+		break;
+
+	case XENKBD_TYPE_MTOUCH:
+		xenkbd_handle_mt_event(info, &event->mtouch);
+		break;
+	}
+}
+
 static irqreturn_t input_handler(int rq, void *dev_id)
 {
 	struct xenkbd_info *info = dev_id;
@@ -66,44 +176,8 @@ static irqreturn_t input_handler(int rq, void *dev_id)
 	if (prod == page->in_cons)
 		return IRQ_HANDLED;
 	rmb();			/* ensure we see ring contents up to prod */
-	for (cons = page->in_cons; cons != prod; cons++) {
-		union xenkbd_in_event *event;
-		struct input_dev *dev;
-		event = &XENKBD_IN_RING_REF(page, cons);
-
-		dev = info->ptr;
-		switch (event->type) {
-		case XENKBD_TYPE_MOTION:
-			input_report_rel(dev, REL_X, event->motion.rel_x);
-			input_report_rel(dev, REL_Y, event->motion.rel_y);
-			if (event->motion.rel_z)
-				input_report_rel(dev, REL_WHEEL,
-						 -event->motion.rel_z);
-			break;
-		case XENKBD_TYPE_KEY:
-			dev = NULL;
-			if (test_bit(event->key.keycode, info->kbd->keybit))
-				dev = info->kbd;
-			if (test_bit(event->key.keycode, info->ptr->keybit))
-				dev = info->ptr;
-			if (dev)
-				input_report_key(dev, event->key.keycode,
-						 event->key.pressed);
-			else
-				pr_warn("unhandled keycode 0x%x\n",
-					event->key.keycode);
-			break;
-		case XENKBD_TYPE_POS:
-			input_report_abs(dev, ABS_X, event->pos.abs_x);
-			input_report_abs(dev, ABS_Y, event->pos.abs_y);
-			if (event->pos.rel_z)
-				input_report_rel(dev, REL_WHEEL,
-						 -event->pos.rel_z);
-			break;
-		}
-		if (dev)
-			input_sync(dev);
-	}
+	for (cons = page->in_cons; cons != prod; cons++)
+		xenkbd_handle_event(info, &XENKBD_IN_RING_REF(page, cons));
 	mb();			/* ensure we got ring contents */
 	page->in_cons = cons;
 	notify_remote_via_irq(info->irq);
@@ -115,9 +189,9 @@ static int xenkbd_probe(struct xenbus_device *dev,
 				  const struct xenbus_device_id *id)
 {
 	int ret, i;
-	unsigned int abs;
+	unsigned int abs, touch;
 	struct xenkbd_info *info;
-	struct input_dev *kbd, *ptr;
+	struct input_dev *kbd, *ptr, *mtouch;
 
 	info = kzalloc(sizeof(*info), GFP_KERNEL);
 	if (!info) {
@@ -152,6 +226,17 @@ static int xenkbd_probe(struct xenbus_device *dev,
 		}
 	}
 
+	touch = xenbus_read_unsigned(dev->nodename,
+				     XENKBD_FIELD_FEAT_MTOUCH, 0);
+	if (touch) {
+		ret = xenbus_write(XBT_NIL, dev->nodename,
+				   XENKBD_FIELD_REQ_MTOUCH, "1");
+		if (ret) {
+			pr_warn("xenkbd: can't request multi-touch");
+			touch = 0;
+		}
+	}
+
 	/* keyboard */
 	kbd = input_allocate_device();
 	if (!kbd)
@@ -208,6 +293,58 @@ static int xenkbd_probe(struct xenbus_device *dev,
 	}
 	info->ptr = ptr;
 
+	/* multi-touch device */
+	if (touch) {
+		int num_cont, width, height;
+
+		mtouch = input_allocate_device();
+		if (!mtouch)
+			goto error_nomem;
+
+		num_cont = xenbus_read_unsigned(info->xbdev->nodename,
+						XENKBD_FIELD_MT_NUM_CONTACTS,
+						1);
+		width = xenbus_read_unsigned(info->xbdev->nodename,
+					     XENKBD_FIELD_MT_WIDTH,
+					     XENFB_WIDTH);
+		height = xenbus_read_unsigned(info->xbdev->nodename,
+					      XENKBD_FIELD_MT_HEIGHT,
+					      XENFB_HEIGHT);
+
+		mtouch->name = "Xen Virtual Multi-touch";
+		mtouch->phys = info->phys;
+		mtouch->id.bustype = BUS_PCI;
+		mtouch->id.vendor = 0x5853;
+		mtouch->id.product = 0xfffd;
+
+		input_set_abs_params(mtouch, ABS_MT_TOUCH_MAJOR,
+				     0, 255, 0, 0);
+		input_set_abs_params(mtouch, ABS_MT_POSITION_X,
+				     0, width, 0, 0);
+		input_set_abs_params(mtouch, ABS_MT_POSITION_Y,
+				     0, height, 0, 0);
+		input_set_abs_params(mtouch, ABS_MT_PRESSURE,
+				     0, 255, 0, 0);
+
+		ret = input_mt_init_slots(mtouch, num_cont, INPUT_MT_DIRECT);
+		if (ret) {
+			input_free_device(mtouch);
+			xenbus_dev_fatal(info->xbdev, ret,
+					 "input_mt_init_slots");
+			goto error;
+		}
+
+		ret = input_register_device(mtouch);
+		if (ret) {
+			input_free_device(mtouch);
+			xenbus_dev_fatal(info->xbdev, ret,
+					 "input_register_device(mtouch)");
+			goto error;
+		}
+		info->mtouch_cur_contact_id = -1;
+		info->mtouch = mtouch;
+	}
+
 	ret = xenkbd_connect_backend(dev, info);
 	if (ret < 0)
 		goto error;
@@ -240,6 +377,8 @@ static int xenkbd_remove(struct xenbus_device *dev)
 		input_unregister_device(info->kbd);
 	if (info->ptr)
 		input_unregister_device(info->ptr);
+	if (info->mtouch)
+		input_unregister_device(info->mtouch);
 	free_page((unsigned long)info->page);
 	kfree(info);
 	return 0;
diff --git a/drivers/input/mouse/elan_i2c_core.c b/drivers/input/mouse/elan_i2c_core.c
index 3b616cb7c67f..714cf7f9b138 100644
--- a/drivers/input/mouse/elan_i2c_core.c
+++ b/drivers/input/mouse/elan_i2c_core.c
@@ -1248,6 +1248,10 @@ static const struct acpi_device_id elan_acpi_id[] = {
 	{ "ELAN0100", 0 },
 	{ "ELAN0600", 0 },
 	{ "ELAN0605", 0 },
+	{ "ELAN0608", 0 },
+	{ "ELAN0605", 0 },
+	{ "ELAN0609", 0 },
+	{ "ELAN060B", 0 },
 	{ "ELAN1000", 0 },
 	{ }
 };
diff --git a/drivers/input/mouse/trackpoint.c b/drivers/input/mouse/trackpoint.c
index 922ea02edcc3..20b5b21c1bba 100644
--- a/drivers/input/mouse/trackpoint.c
+++ b/drivers/input/mouse/trackpoint.c
@@ -380,8 +380,8 @@ int trackpoint_detect(struct psmouse *psmouse, bool set_properties)
 		return 0;
 
 	if (trackpoint_read(ps2dev, TP_EXT_BTN, &button_info)) {
-		psmouse_warn(psmouse, "failed to get extended button data\n");
-		button_info = 0;
+		psmouse_warn(psmouse, "failed to get extended button data, assuming 3 buttons\n");
+		button_info = 0x33;
 	}
 
 	psmouse->private = kzalloc(sizeof(struct trackpoint_data), GFP_KERNEL);
diff --git a/drivers/input/serio/i8042.c b/drivers/input/serio/i8042.c
index c52da651269b..824f4c1c1f31 100644
--- a/drivers/input/serio/i8042.c
+++ b/drivers/input/serio/i8042.c
@@ -436,8 +436,10 @@ static int i8042_start(struct serio *serio)
 {
 	struct i8042_port *port = serio->port_data;
 
+	spin_lock_irq(&i8042_lock);
 	port->exists = true;
-	mb();
+	spin_unlock_irq(&i8042_lock);
+
 	return 0;
 }
 
@@ -450,16 +452,20 @@ static void i8042_stop(struct serio *serio)
 {
 	struct i8042_port *port = serio->port_data;
 
+	spin_lock_irq(&i8042_lock);
 	port->exists = false;
+	port->serio = NULL;
+	spin_unlock_irq(&i8042_lock);
 
 	/*
+	 * We need to make sure that interrupt handler finishes using
+	 * our serio port before we return from this function.
 	 * We synchronize with both AUX and KBD IRQs because there is
 	 * a (very unlikely) chance that AUX IRQ is raised for KBD port
 	 * and vice versa.
 	 */
 	synchronize_irq(I8042_AUX_IRQ);
 	synchronize_irq(I8042_KBD_IRQ);
-	port->serio = NULL;
 }
 
 /*
@@ -576,7 +582,7 @@ static irqreturn_t i8042_interrupt(int irq, void *dev_id)
 
 	spin_unlock_irqrestore(&i8042_lock, flags);
 
-	if (likely(port->exists && !filtered))
+	if (likely(serio && !filtered))
 		serio_interrupt(serio, data, dfl);
 
  out:
diff --git a/drivers/iommu/Kconfig b/drivers/iommu/Kconfig
index 6ee3a25ae731..f73ff28f77e2 100644
--- a/drivers/iommu/Kconfig
+++ b/drivers/iommu/Kconfig
@@ -23,7 +23,7 @@ config IOMMU_IO_PGTABLE
 config IOMMU_IO_PGTABLE_LPAE
 	bool "ARMv7/v8 Long Descriptor Format"
 	select IOMMU_IO_PGTABLE
-	depends on HAS_DMA && (ARM || ARM64 || COMPILE_TEST)
+	depends on HAS_DMA && (ARM || ARM64 || (COMPILE_TEST && !GENERIC_ATOMIC64))
 	help
 	  Enable support for the ARM long descriptor pagetable format.
 	  This allocator supports 4K/2M/1G, 16K/32M and 64K/512M page
@@ -219,7 +219,7 @@ config OMAP_IOMMU_DEBUG
 
 config ROCKCHIP_IOMMU
 	bool "Rockchip IOMMU Support"
-	depends on ARM
+	depends on ARM || ARM64
 	depends on ARCH_ROCKCHIP || COMPILE_TEST
 	select IOMMU_API
 	select ARM_DMA_USE_IOMMU
@@ -274,7 +274,7 @@ config EXYNOS_IOMMU_DEBUG
 
 config IPMMU_VMSA
 	bool "Renesas VMSA-compatible IPMMU"
-	depends on ARM_LPAE
+	depends on ARM || IOMMU_DMA
 	depends on ARCH_RENESAS || COMPILE_TEST
 	select IOMMU_API
 	select IOMMU_IO_PGTABLE_LPAE
diff --git a/drivers/iommu/amd_iommu.c b/drivers/iommu/amd_iommu.c
index f16d0f26ee24..354cbd6392cd 100644
--- a/drivers/iommu/amd_iommu.c
+++ b/drivers/iommu/amd_iommu.c
@@ -91,25 +91,6 @@ LIST_HEAD(ioapic_map);
 LIST_HEAD(hpet_map);
 LIST_HEAD(acpihid_map);
 
-#define FLUSH_QUEUE_SIZE 256
-
-struct flush_queue_entry {
-	unsigned long iova_pfn;
-	unsigned long pages;
-	struct dma_ops_domain *dma_dom;
-};
-
-struct flush_queue {
-	spinlock_t lock;
-	unsigned next;
-	struct flush_queue_entry *entries;
-};
-
-static DEFINE_PER_CPU(struct flush_queue, flush_queue);
-
-static atomic_t queue_timer_on;
-static struct timer_list queue_timer;
-
 /*
  * Domain for untranslated devices - only allocated
  * if iommu=pt passed on kernel cmd line.
@@ -140,6 +121,8 @@ struct iommu_dev_data {
 					     PPR completions */
 	u32 errata;			  /* Bitmap for errata to apply */
 	bool use_vapic;			  /* Enable device to use vapic mode */
+
+	struct ratelimit_state rs;	  /* Ratelimit IOPF messages */
 };
 
 /*
@@ -155,6 +138,20 @@ static void update_domain(struct protection_domain *domain);
 static int protection_domain_init(struct protection_domain *domain);
 static void detach_device(struct device *dev);
 
+#define FLUSH_QUEUE_SIZE 256
+
+struct flush_queue_entry {
+	unsigned long iova_pfn;
+	unsigned long pages;
+	u64 counter; /* Flush counter when this entry was added to the queue */
+};
+
+struct flush_queue {
+	struct flush_queue_entry *entries;
+	unsigned head, tail;
+	spinlock_t lock;
+};
+
 /*
  * Data container for a dma_ops specific protection domain
  */
@@ -164,6 +161,36 @@ struct dma_ops_domain {
 
 	/* IOVA RB-Tree */
 	struct iova_domain iovad;
+
+	struct flush_queue __percpu *flush_queue;
+
+	/*
+	 * We need two counter here to be race-free wrt. IOTLB flushing and
+	 * adding entries to the flush queue.
+	 *
+	 * The flush_start_cnt is incremented _before_ the IOTLB flush starts.
+	 * New entries added to the flush ring-buffer get their 'counter' value
+	 * from here. This way we can make sure that entries added to the queue
+	 * (or other per-cpu queues of the same domain) while the TLB is about
+	 * to be flushed are not considered to be flushed already.
+	 */
+	atomic64_t flush_start_cnt;
+
+	/*
+	 * The flush_finish_cnt is incremented when an IOTLB flush is complete.
+	 * This value is always smaller than flush_start_cnt. The queue_add
+	 * function frees all IOVAs that have a counter value smaller than
+	 * flush_finish_cnt. This makes sure that we only free IOVAs that are
+	 * flushed out of the IOTLB of the domain.
+	 */
+	atomic64_t flush_finish_cnt;
+
+	/*
+	 * Timer to make sure we don't keep IOVAs around unflushed
+	 * for too long
+	 */
+	struct timer_list flush_timer;
+	atomic_t flush_timer_on;
 };
 
 static struct iova_domain reserved_iova_ranges;
@@ -255,6 +282,8 @@ static struct iommu_dev_data *alloc_dev_data(u16 devid)
 	list_add_tail(&dev_data->dev_data_list, &dev_data_list);
 	spin_unlock_irqrestore(&dev_data_list_lock, flags);
 
+	ratelimit_default_init(&dev_data->rs);
+
 	return dev_data;
 }
 
@@ -553,6 +582,29 @@ static void dump_command(unsigned long phys_addr)
 		pr_err("AMD-Vi: CMD[%d]: %08x\n", i, cmd->data[i]);
 }
 
+static void amd_iommu_report_page_fault(u16 devid, u16 domain_id,
+					u64 address, int flags)
+{
+	struct iommu_dev_data *dev_data = NULL;
+	struct pci_dev *pdev;
+
+	pdev = pci_get_bus_and_slot(PCI_BUS_NUM(devid), devid & 0xff);
+	if (pdev)
+		dev_data = get_dev_data(&pdev->dev);
+
+	if (dev_data && __ratelimit(&dev_data->rs)) {
+		dev_err(&pdev->dev, "AMD-Vi: Event logged [IO_PAGE_FAULT domain=0x%04x address=0x%016llx flags=0x%04x]\n",
+			domain_id, address, flags);
+	} else if (printk_ratelimit()) {
+		pr_err("AMD-Vi: Event logged [IO_PAGE_FAULT device=%02x:%02x.%x domain=0x%04x address=0x%016llx flags=0x%04x]\n",
+			PCI_BUS_NUM(devid), PCI_SLOT(devid), PCI_FUNC(devid),
+			domain_id, address, flags);
+	}
+
+	if (pdev)
+		pci_dev_put(pdev);
+}
+
 static void iommu_print_event(struct amd_iommu *iommu, void *__evt)
 {
 	int type, devid, domid, flags;
@@ -577,7 +629,12 @@ retry:
 		goto retry;
 	}
 
-	printk(KERN_ERR "AMD-Vi: Event logged [");
+	if (type == EVENT_TYPE_IO_FAULT) {
+		amd_iommu_report_page_fault(devid, domid, address, flags);
+		return;
+	} else {
+		printk(KERN_ERR "AMD-Vi: Event logged [");
+	}
 
 	switch (type) {
 	case EVENT_TYPE_ILL_DEV:
@@ -587,12 +644,6 @@ retry:
 		       address, flags);
 		dump_dte_entry(devid);
 		break;
-	case EVENT_TYPE_IO_FAULT:
-		printk("IO_PAGE_FAULT device=%02x:%02x.%x "
-		       "domain=0x%04x address=0x%016llx flags=0x%04x]\n",
-		       PCI_BUS_NUM(devid), PCI_SLOT(devid), PCI_FUNC(devid),
-		       domid, address, flags);
-		break;
 	case EVENT_TYPE_DEV_TAB_ERR:
 		printk("DEV_TAB_HARDWARE_ERROR device=%02x:%02x.%x "
 		       "address=0x%016llx flags=0x%04x]\n",
@@ -850,19 +901,20 @@ static int wait_on_sem(volatile u64 *sem)
 }
 
 static void copy_cmd_to_buffer(struct amd_iommu *iommu,
-			       struct iommu_cmd *cmd,
-			       u32 tail)
+			       struct iommu_cmd *cmd)
 {
 	u8 *target;
 
-	target = iommu->cmd_buf + tail;
-	tail   = (tail + sizeof(*cmd)) % CMD_BUFFER_SIZE;
+	target = iommu->cmd_buf + iommu->cmd_buf_tail;
+
+	iommu->cmd_buf_tail += sizeof(*cmd);
+	iommu->cmd_buf_tail %= CMD_BUFFER_SIZE;
 
 	/* Copy command to buffer */
 	memcpy(target, cmd, sizeof(*cmd));
 
 	/* Tell the IOMMU about it */
-	writel(tail, iommu->mmio_base + MMIO_CMD_TAIL_OFFSET);
+	writel(iommu->cmd_buf_tail, iommu->mmio_base + MMIO_CMD_TAIL_OFFSET);
 }
 
 static void build_completion_wait(struct iommu_cmd *cmd, u64 address)
@@ -1020,33 +1072,34 @@ static int __iommu_queue_command_sync(struct amd_iommu *iommu,
 				      struct iommu_cmd *cmd,
 				      bool sync)
 {
-	u32 left, tail, head, next_tail;
+	unsigned int count = 0;
+	u32 left, next_tail;
 
+	next_tail = (iommu->cmd_buf_tail + sizeof(*cmd)) % CMD_BUFFER_SIZE;
 again:
-
-	head      = readl(iommu->mmio_base + MMIO_CMD_HEAD_OFFSET);
-	tail      = readl(iommu->mmio_base + MMIO_CMD_TAIL_OFFSET);
-	next_tail = (tail + sizeof(*cmd)) % CMD_BUFFER_SIZE;
-	left      = (head - next_tail) % CMD_BUFFER_SIZE;
+	left      = (iommu->cmd_buf_head - next_tail) % CMD_BUFFER_SIZE;
 
 	if (left <= 0x20) {
-		struct iommu_cmd sync_cmd;
-		int ret;
-
-		iommu->cmd_sem = 0;
+		/* Skip udelay() the first time around */
+		if (count++) {
+			if (count == LOOP_TIMEOUT) {
+				pr_err("AMD-Vi: Command buffer timeout\n");
+				return -EIO;
+			}
 
-		build_completion_wait(&sync_cmd, (u64)&iommu->cmd_sem);
-		copy_cmd_to_buffer(iommu, &sync_cmd, tail);
+			udelay(1);
+		}
 
-		if ((ret = wait_on_sem(&iommu->cmd_sem)) != 0)
-			return ret;
+		/* Update head and recheck remaining space */
+		iommu->cmd_buf_head = readl(iommu->mmio_base +
+					    MMIO_CMD_HEAD_OFFSET);
 
 		goto again;
 	}
 
-	copy_cmd_to_buffer(iommu, cmd, tail);
+	copy_cmd_to_buffer(iommu, cmd);
 
-	/* We need to sync now to make sure all commands are processed */
+	/* Do we need to make sure all commands are processed? */
 	iommu->need_sync = sync;
 
 	return 0;
@@ -1735,6 +1788,180 @@ static void free_gcr3_table(struct protection_domain *domain)
 	free_page((unsigned long)domain->gcr3_tbl);
 }
 
+static void dma_ops_domain_free_flush_queue(struct dma_ops_domain *dom)
+{
+	int cpu;
+
+	for_each_possible_cpu(cpu) {
+		struct flush_queue *queue;
+
+		queue = per_cpu_ptr(dom->flush_queue, cpu);
+		kfree(queue->entries);
+	}
+
+	free_percpu(dom->flush_queue);
+
+	dom->flush_queue = NULL;
+}
+
+static int dma_ops_domain_alloc_flush_queue(struct dma_ops_domain *dom)
+{
+	int cpu;
+
+	atomic64_set(&dom->flush_start_cnt,  0);
+	atomic64_set(&dom->flush_finish_cnt, 0);
+
+	dom->flush_queue = alloc_percpu(struct flush_queue);
+	if (!dom->flush_queue)
+		return -ENOMEM;
+
+	/* First make sure everything is cleared */
+	for_each_possible_cpu(cpu) {
+		struct flush_queue *queue;
+
+		queue = per_cpu_ptr(dom->flush_queue, cpu);
+		queue->head    = 0;
+		queue->tail    = 0;
+		queue->entries = NULL;
+	}
+
+	/* Now start doing the allocation */
+	for_each_possible_cpu(cpu) {
+		struct flush_queue *queue;
+
+		queue = per_cpu_ptr(dom->flush_queue, cpu);
+		queue->entries = kzalloc(FLUSH_QUEUE_SIZE * sizeof(*queue->entries),
+					 GFP_KERNEL);
+		if (!queue->entries) {
+			dma_ops_domain_free_flush_queue(dom);
+			return -ENOMEM;
+		}
+
+		spin_lock_init(&queue->lock);
+	}
+
+	return 0;
+}
+
+static void dma_ops_domain_flush_tlb(struct dma_ops_domain *dom)
+{
+	atomic64_inc(&dom->flush_start_cnt);
+	domain_flush_tlb(&dom->domain);
+	domain_flush_complete(&dom->domain);
+	atomic64_inc(&dom->flush_finish_cnt);
+}
+
+static inline bool queue_ring_full(struct flush_queue *queue)
+{
+	assert_spin_locked(&queue->lock);
+
+	return (((queue->tail + 1) % FLUSH_QUEUE_SIZE) == queue->head);
+}
+
+#define queue_ring_for_each(i, q) \
+	for (i = (q)->head; i != (q)->tail; i = (i + 1) % FLUSH_QUEUE_SIZE)
+
+static inline unsigned queue_ring_add(struct flush_queue *queue)
+{
+	unsigned idx = queue->tail;
+
+	assert_spin_locked(&queue->lock);
+	queue->tail = (idx + 1) % FLUSH_QUEUE_SIZE;
+
+	return idx;
+}
+
+static inline void queue_ring_remove_head(struct flush_queue *queue)
+{
+	assert_spin_locked(&queue->lock);
+	queue->head = (queue->head + 1) % FLUSH_QUEUE_SIZE;
+}
+
+static void queue_ring_free_flushed(struct dma_ops_domain *dom,
+				    struct flush_queue *queue)
+{
+	u64 counter = atomic64_read(&dom->flush_finish_cnt);
+	int idx;
+
+	queue_ring_for_each(idx, queue) {
+		/*
+		 * This assumes that counter values in the ring-buffer are
+		 * monotonously rising.
+		 */
+		if (queue->entries[idx].counter >= counter)
+			break;
+
+		free_iova_fast(&dom->iovad,
+			       queue->entries[idx].iova_pfn,
+			       queue->entries[idx].pages);
+
+		queue_ring_remove_head(queue);
+	}
+}
+
+static void queue_add(struct dma_ops_domain *dom,
+		      unsigned long address, unsigned long pages)
+{
+	struct flush_queue *queue;
+	unsigned long flags;
+	int idx;
+
+	pages     = __roundup_pow_of_two(pages);
+	address >>= PAGE_SHIFT;
+
+	queue = get_cpu_ptr(dom->flush_queue);
+	spin_lock_irqsave(&queue->lock, flags);
+
+	/*
+	 * First remove the enries from the ring-buffer that are already
+	 * flushed to make the below queue_ring_full() check less likely
+	 */
+	queue_ring_free_flushed(dom, queue);
+
+	/*
+	 * When ring-queue is full, flush the entries from the IOTLB so
+	 * that we can free all entries with queue_ring_free_flushed()
+	 * below.
+	 */
+	if (queue_ring_full(queue)) {
+		dma_ops_domain_flush_tlb(dom);
+		queue_ring_free_flushed(dom, queue);
+	}
+
+	idx = queue_ring_add(queue);
+
+	queue->entries[idx].iova_pfn = address;
+	queue->entries[idx].pages    = pages;
+	queue->entries[idx].counter  = atomic64_read(&dom->flush_start_cnt);
+
+	spin_unlock_irqrestore(&queue->lock, flags);
+
+	if (atomic_cmpxchg(&dom->flush_timer_on, 0, 1) == 0)
+		mod_timer(&dom->flush_timer, jiffies + msecs_to_jiffies(10));
+
+	put_cpu_ptr(dom->flush_queue);
+}
+
+static void queue_flush_timeout(unsigned long data)
+{
+	struct dma_ops_domain *dom = (struct dma_ops_domain *)data;
+	int cpu;
+
+	atomic_set(&dom->flush_timer_on, 0);
+
+	dma_ops_domain_flush_tlb(dom);
+
+	for_each_possible_cpu(cpu) {
+		struct flush_queue *queue;
+		unsigned long flags;
+
+		queue = per_cpu_ptr(dom->flush_queue, cpu);
+		spin_lock_irqsave(&queue->lock, flags);
+		queue_ring_free_flushed(dom, queue);
+		spin_unlock_irqrestore(&queue->lock, flags);
+	}
+}
+
 /*
  * Free a domain, only used if something went wrong in the
  * allocation path and we need to free an already allocated page table
@@ -1746,6 +1973,11 @@ static void dma_ops_domain_free(struct dma_ops_domain *dom)
 
 	del_domain_from_list(&dom->domain);
 
+	if (timer_pending(&dom->flush_timer))
+		del_timer(&dom->flush_timer);
+
+	dma_ops_domain_free_flush_queue(dom);
+
 	put_iova_domain(&dom->iovad);
 
 	free_pagetable(&dom->domain);
@@ -1784,6 +2016,14 @@ static struct dma_ops_domain *dma_ops_domain_alloc(void)
 	/* Initialize reserved ranges */
 	copy_reserved_iova(&reserved_iova_ranges, &dma_dom->iovad);
 
+	if (dma_ops_domain_alloc_flush_queue(dma_dom))
+		goto free_dma_dom;
+
+	setup_timer(&dma_dom->flush_timer, queue_flush_timeout,
+		    (unsigned long)dma_dom);
+
+	atomic_set(&dma_dom->flush_timer_on, 0);
+
 	add_domain_to_list(&dma_dom->domain);
 
 	return dma_dom;
@@ -1846,7 +2086,8 @@ static void set_dte_entry(u16 devid, struct protection_domain *domain, bool ats)
 		flags    |= tmp;
 	}
 
-	flags &= ~(0xffffUL);
+
+	flags &= ~(DTE_FLAG_SA | 0xffffULL);
 	flags |= domain->id;
 
 	amd_iommu_dev_table[devid].data[1]  = flags;
@@ -2227,92 +2468,6 @@ static struct iommu_group *amd_iommu_device_group(struct device *dev)
  *
  *****************************************************************************/
 
-static void __queue_flush(struct flush_queue *queue)
-{
-	struct protection_domain *domain;
-	unsigned long flags;
-	int idx;
-
-	/* First flush TLB of all known domains */
-	spin_lock_irqsave(&amd_iommu_pd_lock, flags);
-	list_for_each_entry(domain, &amd_iommu_pd_list, list)
-		domain_flush_tlb(domain);
-	spin_unlock_irqrestore(&amd_iommu_pd_lock, flags);
-
-	/* Wait until flushes have completed */
-	domain_flush_complete(NULL);
-
-	for (idx = 0; idx < queue->next; ++idx) {
-		struct flush_queue_entry *entry;
-
-		entry = queue->entries + idx;
-
-		free_iova_fast(&entry->dma_dom->iovad,
-				entry->iova_pfn,
-				entry->pages);
-
-		/* Not really necessary, just to make sure we catch any bugs */
-		entry->dma_dom = NULL;
-	}
-
-	queue->next = 0;
-}
-
-static void queue_flush_all(void)
-{
-	int cpu;
-
-	for_each_possible_cpu(cpu) {
-		struct flush_queue *queue;
-		unsigned long flags;
-
-		queue = per_cpu_ptr(&flush_queue, cpu);
-		spin_lock_irqsave(&queue->lock, flags);
-		if (queue->next > 0)
-			__queue_flush(queue);
-		spin_unlock_irqrestore(&queue->lock, flags);
-	}
-}
-
-static void queue_flush_timeout(unsigned long unsused)
-{
-	atomic_set(&queue_timer_on, 0);
-	queue_flush_all();
-}
-
-static void queue_add(struct dma_ops_domain *dma_dom,
-		      unsigned long address, unsigned long pages)
-{
-	struct flush_queue_entry *entry;
-	struct flush_queue *queue;
-	unsigned long flags;
-	int idx;
-
-	pages     = __roundup_pow_of_two(pages);
-	address >>= PAGE_SHIFT;
-
-	queue = get_cpu_ptr(&flush_queue);
-	spin_lock_irqsave(&queue->lock, flags);
-
-	if (queue->next == FLUSH_QUEUE_SIZE)
-		__queue_flush(queue);
-
-	idx   = queue->next++;
-	entry = queue->entries + idx;
-
-	entry->iova_pfn = address;
-	entry->pages    = pages;
-	entry->dma_dom  = dma_dom;
-
-	spin_unlock_irqrestore(&queue->lock, flags);
-
-	if (atomic_cmpxchg(&queue_timer_on, 0, 1) == 0)
-		mod_timer(&queue_timer, jiffies + msecs_to_jiffies(10));
-
-	put_cpu_ptr(&flush_queue);
-}
-
-
 /*
  * In the dma_ops path we only have the struct device. This function
  * finds the corresponding IOMMU, the protection domain and the
@@ -2807,7 +2962,7 @@ static int init_reserved_iova_ranges(void)
 
 int __init amd_iommu_init_api(void)
 {
-	int ret, cpu, err = 0;
+	int ret, err = 0;
 
 	ret = iova_cache_get();
 	if (ret)
@@ -2817,18 +2972,6 @@ int __init amd_iommu_init_api(void)
 	if (ret)
 		return ret;
 
-	for_each_possible_cpu(cpu) {
-		struct flush_queue *queue = per_cpu_ptr(&flush_queue, cpu);
-
-		queue->entries = kzalloc(FLUSH_QUEUE_SIZE *
-					 sizeof(*queue->entries),
-					 GFP_KERNEL);
-		if (!queue->entries)
-			goto out_put_iova;
-
-		spin_lock_init(&queue->lock);
-	}
-
 	err = bus_set_iommu(&pci_bus_type, &amd_iommu_ops);
 	if (err)
 		return err;
@@ -2840,23 +2983,12 @@ int __init amd_iommu_init_api(void)
 	err = bus_set_iommu(&platform_bus_type, &amd_iommu_ops);
 	if (err)
 		return err;
-	return 0;
-
-out_put_iova:
-	for_each_possible_cpu(cpu) {
-		struct flush_queue *queue = per_cpu_ptr(&flush_queue, cpu);
-
-		kfree(queue->entries);
-	}
 
-	return -ENOMEM;
+	return 0;
 }
 
 int __init amd_iommu_init_dma_ops(void)
 {
-	setup_timer(&queue_timer, queue_flush_timeout, 0);
-	atomic_set(&queue_timer_on, 0);
-
 	swiotlb        = iommu_pass_through ? 1 : 0;
 	iommu_detected = 1;
 
@@ -3012,12 +3144,6 @@ static void amd_iommu_domain_free(struct iommu_domain *dom)
 
 	switch (dom->type) {
 	case IOMMU_DOMAIN_DMA:
-		/*
-		 * First make sure the domain is no longer referenced from the
-		 * flush queue
-		 */
-		queue_flush_all();
-
 		/* Now release the domain */
 		dma_dom = to_dma_ops_domain(domain);
 		dma_ops_domain_free(dma_dom);
@@ -4281,7 +4407,7 @@ static void irq_remapping_deactivate(struct irq_domain *domain,
 					    irte_info->index);
 }
 
-static struct irq_domain_ops amd_ir_domain_ops = {
+static const struct irq_domain_ops amd_ir_domain_ops = {
 	.alloc = irq_remapping_alloc,
 	.free = irq_remapping_free,
 	.activate = irq_remapping_activate,
@@ -4326,6 +4452,7 @@ static int amd_ir_set_vcpu_affinity(struct irq_data *data, void *vcpu_info)
 		/* Setting */
 		irte->hi.fields.ga_root_ptr = (pi_data->base >> 12);
 		irte->hi.fields.vector = vcpu_pi_info->vector;
+		irte->lo.fields_vapic.ga_log_intr = 1;
 		irte->lo.fields_vapic.guest_mode = 1;
 		irte->lo.fields_vapic.ga_tag = pi_data->ga_tag;
 
diff --git a/drivers/iommu/amd_iommu_init.c b/drivers/iommu/amd_iommu_init.c
index 5a11328f4d98..372303700566 100644
--- a/drivers/iommu/amd_iommu_init.c
+++ b/drivers/iommu/amd_iommu_init.c
@@ -29,6 +29,7 @@
 #include <linux/export.h>
 #include <linux/iommu.h>
 #include <linux/kmemleak.h>
+#include <linux/crash_dump.h>
 #include <asm/pci-direct.h>
 #include <asm/iommu.h>
 #include <asm/gart.h>
@@ -236,6 +237,7 @@ enum iommu_init_state {
 	IOMMU_INITIALIZED,
 	IOMMU_NOT_FOUND,
 	IOMMU_INIT_ERROR,
+	IOMMU_CMDLINE_DISABLED,
 };
 
 /* Early ioapic and hpet maps from kernel command line */
@@ -588,6 +590,8 @@ void amd_iommu_reset_cmd_buffer(struct amd_iommu *iommu)
 
 	writel(0x00, iommu->mmio_base + MMIO_CMD_HEAD_OFFSET);
 	writel(0x00, iommu->mmio_base + MMIO_CMD_TAIL_OFFSET);
+	iommu->cmd_buf_head = 0;
+	iommu->cmd_buf_tail = 0;
 
 	iommu_feature_enable(iommu, CONTROL_CMDBUF_EN);
 }
@@ -1898,6 +1902,14 @@ static void init_device_table_dma(void)
 	for (devid = 0; devid <= amd_iommu_last_bdf; ++devid) {
 		set_dev_entry_bit(devid, DEV_ENTRY_VALID);
 		set_dev_entry_bit(devid, DEV_ENTRY_TRANSLATION);
+		/*
+		 * In kdump kernels in-flight DMA from the old kernel might
+		 * cause IO_PAGE_FAULTs. There are no reports that a kdump
+		 * actually failed because of that, so just disable fault
+		 * reporting in the hardware to get rid of the messages
+		 */
+		if (is_kdump_kernel())
+			set_dev_entry_bit(devid, DEV_ENTRY_NO_PAGE_FAULT);
 	}
 }
 
@@ -2097,23 +2109,27 @@ static struct syscore_ops amd_iommu_syscore_ops = {
 	.resume = amd_iommu_resume,
 };
 
-static void __init free_on_init_error(void)
+static void __init free_iommu_resources(void)
 {
 	kmemleak_free(irq_lookup_table);
 	free_pages((unsigned long)irq_lookup_table,
 		   get_order(rlookup_table_size));
+	irq_lookup_table = NULL;
 
 	kmem_cache_destroy(amd_iommu_irq_cache);
 	amd_iommu_irq_cache = NULL;
 
 	free_pages((unsigned long)amd_iommu_rlookup_table,
 		   get_order(rlookup_table_size));
+	amd_iommu_rlookup_table = NULL;
 
 	free_pages((unsigned long)amd_iommu_alias_table,
 		   get_order(alias_table_size));
+	amd_iommu_alias_table = NULL;
 
 	free_pages((unsigned long)amd_iommu_dev_table,
 		   get_order(dev_table_size));
+	amd_iommu_dev_table = NULL;
 
 	free_iommu_all();
 
@@ -2183,6 +2199,7 @@ static void __init free_dma_resources(void)
 {
 	free_pages((unsigned long)amd_iommu_pd_alloc_bitmap,
 		   get_order(MAX_DOMAIN_ID/8));
+	amd_iommu_pd_alloc_bitmap = NULL;
 
 	free_unity_maps();
 }
@@ -2307,6 +2324,9 @@ static int __init early_amd_iommu_init(void)
 	if (ret)
 		goto out;
 
+	/* Disable any previously enabled IOMMUs */
+	disable_iommus();
+
 	if (amd_iommu_irq_remap)
 		amd_iommu_irq_remap = check_ioapic_information();
 
@@ -2410,14 +2430,21 @@ static int __init state_next(void)
 	case IOMMU_IVRS_DETECTED:
 		ret = early_amd_iommu_init();
 		init_state = ret ? IOMMU_INIT_ERROR : IOMMU_ACPI_FINISHED;
+		if (init_state == IOMMU_ACPI_FINISHED && amd_iommu_disabled) {
+			pr_info("AMD-Vi: AMD IOMMU disabled on kernel command-line\n");
+			free_dma_resources();
+			free_iommu_resources();
+			init_state = IOMMU_CMDLINE_DISABLED;
+			ret = -EINVAL;
+		}
 		break;
 	case IOMMU_ACPI_FINISHED:
 		early_enable_iommus();
-		register_syscore_ops(&amd_iommu_syscore_ops);
 		x86_platform.iommu_shutdown = disable_iommus;
 		init_state = IOMMU_ENABLED;
 		break;
 	case IOMMU_ENABLED:
+		register_syscore_ops(&amd_iommu_syscore_ops);
 		ret = amd_iommu_init_pci();
 		init_state = ret ? IOMMU_INIT_ERROR : IOMMU_PCI_INIT;
 		enable_iommus_v2();
@@ -2438,6 +2465,7 @@ static int __init state_next(void)
 		break;
 	case IOMMU_NOT_FOUND:
 	case IOMMU_INIT_ERROR:
+	case IOMMU_CMDLINE_DISABLED:
 		/* Error states => do nothing */
 		ret = -EINVAL;
 		break;
@@ -2451,13 +2479,14 @@ static int __init state_next(void)
 
 static int __init iommu_go_to_state(enum iommu_init_state state)
 {
-	int ret = 0;
+	int ret = -EINVAL;
 
 	while (init_state != state) {
-		ret = state_next();
-		if (init_state == IOMMU_NOT_FOUND ||
-		    init_state == IOMMU_INIT_ERROR)
+		if (init_state == IOMMU_NOT_FOUND         ||
+		    init_state == IOMMU_INIT_ERROR        ||
+		    init_state == IOMMU_CMDLINE_DISABLED)
 			break;
+		ret = state_next();
 	}
 
 	return ret;
@@ -2522,7 +2551,7 @@ static int __init amd_iommu_init(void)
 		free_dma_resources();
 		if (!irq_remapping_enabled) {
 			disable_iommus();
-			free_on_init_error();
+			free_iommu_resources();
 		} else {
 			struct amd_iommu *iommu;
 
@@ -2549,9 +2578,6 @@ int __init amd_iommu_detect(void)
 	if (no_iommu || (iommu_detected && !gart_iommu_aperture))
 		return -ENODEV;
 
-	if (amd_iommu_disabled)
-		return -ENODEV;
-
 	ret = iommu_go_to_state(IOMMU_IVRS_DETECTED);
 	if (ret)
 		return ret;
diff --git a/drivers/iommu/amd_iommu_types.h b/drivers/iommu/amd_iommu_types.h
index 4de8f4160bb8..294a409e283b 100644
--- a/drivers/iommu/amd_iommu_types.h
+++ b/drivers/iommu/amd_iommu_types.h
@@ -322,6 +322,7 @@
 #define IOMMU_PTE_IW (1ULL << 62)
 
 #define DTE_FLAG_IOTLB	(1ULL << 32)
+#define DTE_FLAG_SA	(1ULL << 34)
 #define DTE_FLAG_GV	(1ULL << 55)
 #define DTE_FLAG_MASK	(0x3ffULL << 32)
 #define DTE_GLX_SHIFT	(56)
@@ -516,6 +517,8 @@ struct amd_iommu {
 
 	/* command buffer virtual address */
 	u8 *cmd_buf;
+	u32 cmd_buf_head;
+	u32 cmd_buf_tail;
 
 	/* event buffer virtual address */
 	u8 *evt_buf;
diff --git a/drivers/iommu/arm-smmu-v3.c b/drivers/iommu/arm-smmu-v3.c
index 380969aa60d5..568c400eeaed 100644
--- a/drivers/iommu/arm-smmu-v3.c
+++ b/drivers/iommu/arm-smmu-v3.c
@@ -408,10 +408,20 @@
 
 /* High-level queue structures */
 #define ARM_SMMU_POLL_TIMEOUT_US	100
+#define ARM_SMMU_CMDQ_DRAIN_TIMEOUT_US	1000000 /* 1s! */
 
 #define MSI_IOVA_BASE			0x8000000
 #define MSI_IOVA_LENGTH			0x100000
 
+/* Until ACPICA headers cover IORT rev. C */
+#ifndef ACPI_IORT_SMMU_HISILICON_HI161X
+#define ACPI_IORT_SMMU_HISILICON_HI161X		0x1
+#endif
+
+#ifndef ACPI_IORT_SMMU_V3_CAVIUM_CN99XX
+#define ACPI_IORT_SMMU_V3_CAVIUM_CN99XX		0x2
+#endif
+
 static bool disable_bypass;
 module_param_named(disable_bypass, disable_bypass, bool, S_IRUGO);
 MODULE_PARM_DESC(disable_bypass,
@@ -597,6 +607,7 @@ struct arm_smmu_device {
 	u32				features;
 
 #define ARM_SMMU_OPT_SKIP_PREFETCH	(1 << 0)
+#define ARM_SMMU_OPT_PAGE0_REGS_ONLY	(1 << 1)
 	u32				options;
 
 	struct arm_smmu_cmdq		cmdq;
@@ -604,6 +615,7 @@ struct arm_smmu_device {
 	struct arm_smmu_priq		priq;
 
 	int				gerr_irq;
+	int				combined_irq;
 
 	unsigned long			ias; /* IPA */
 	unsigned long			oas; /* PA */
@@ -645,7 +657,6 @@ struct arm_smmu_domain {
 	struct mutex			init_mutex; /* Protects smmu pointer */
 
 	struct io_pgtable_ops		*pgtbl_ops;
-	spinlock_t			pgtbl_lock;
 
 	enum arm_smmu_domain_stage	stage;
 	union {
@@ -663,9 +674,20 @@ struct arm_smmu_option_prop {
 
 static struct arm_smmu_option_prop arm_smmu_options[] = {
 	{ ARM_SMMU_OPT_SKIP_PREFETCH, "hisilicon,broken-prefetch-cmd" },
+	{ ARM_SMMU_OPT_PAGE0_REGS_ONLY, "cavium,cn9900-broken-page1-regspace"},
 	{ 0, NULL},
 };
 
+static inline void __iomem *arm_smmu_page1_fixup(unsigned long offset,
+						 struct arm_smmu_device *smmu)
+{
+	if ((offset > SZ_64K) &&
+	    (smmu->options & ARM_SMMU_OPT_PAGE0_REGS_ONLY))
+		offset -= SZ_64K;
+
+	return smmu->base + offset;
+}
+
 static struct arm_smmu_domain *to_smmu_domain(struct iommu_domain *dom)
 {
 	return container_of(dom, struct arm_smmu_domain, domain);
@@ -737,7 +759,13 @@ static void queue_inc_prod(struct arm_smmu_queue *q)
  */
 static int queue_poll_cons(struct arm_smmu_queue *q, bool drain, bool wfe)
 {
-	ktime_t timeout = ktime_add_us(ktime_get(), ARM_SMMU_POLL_TIMEOUT_US);
+	ktime_t timeout;
+	unsigned int delay = 1;
+
+	/* Wait longer if it's queue drain */
+	timeout = ktime_add_us(ktime_get(), drain ?
+					    ARM_SMMU_CMDQ_DRAIN_TIMEOUT_US :
+					    ARM_SMMU_POLL_TIMEOUT_US);
 
 	while (queue_sync_cons(q), (drain ? !queue_empty(q) : queue_full(q))) {
 		if (ktime_compare(ktime_get(), timeout) > 0)
@@ -747,7 +775,8 @@ static int queue_poll_cons(struct arm_smmu_queue *q, bool drain, bool wfe)
 			wfe();
 		} else {
 			cpu_relax();
-			udelay(1);
+			udelay(delay);
+			delay *= 2;
 		}
 	}
 
@@ -1302,6 +1331,24 @@ static irqreturn_t arm_smmu_gerror_handler(int irq, void *dev)
 	return IRQ_HANDLED;
 }
 
+static irqreturn_t arm_smmu_combined_irq_thread(int irq, void *dev)
+{
+	struct arm_smmu_device *smmu = dev;
+
+	arm_smmu_evtq_thread(irq, dev);
+	if (smmu->features & ARM_SMMU_FEAT_PRI)
+		arm_smmu_priq_thread(irq, dev);
+
+	return IRQ_HANDLED;
+}
+
+static irqreturn_t arm_smmu_combined_irq_handler(int irq, void *dev)
+{
+	arm_smmu_gerror_handler(irq, dev);
+	arm_smmu_cmdq_sync_handler(irq, dev);
+	return IRQ_WAKE_THREAD;
+}
+
 /* IO_PGTABLE API */
 static void __arm_smmu_tlb_sync(struct arm_smmu_device *smmu)
 {
@@ -1406,7 +1453,6 @@ static struct iommu_domain *arm_smmu_domain_alloc(unsigned type)
 	}
 
 	mutex_init(&smmu_domain->init_mutex);
-	spin_lock_init(&smmu_domain->pgtbl_lock);
 	return &smmu_domain->domain;
 }
 
@@ -1555,6 +1601,9 @@ static int arm_smmu_domain_finalise(struct iommu_domain *domain)
 		.iommu_dev	= smmu->dev,
 	};
 
+	if (smmu->features & ARM_SMMU_FEAT_COHERENCY)
+		pgtbl_cfg.quirks = IO_PGTABLE_QUIRK_NO_DMA;
+
 	pgtbl_ops = alloc_io_pgtable_ops(fmt, &pgtbl_cfg, smmu_domain);
 	if (!pgtbl_ops)
 		return -ENOMEM;
@@ -1675,44 +1724,29 @@ out_unlock:
 static int arm_smmu_map(struct iommu_domain *domain, unsigned long iova,
 			phys_addr_t paddr, size_t size, int prot)
 {
-	int ret;
-	unsigned long flags;
-	struct arm_smmu_domain *smmu_domain = to_smmu_domain(domain);
-	struct io_pgtable_ops *ops = smmu_domain->pgtbl_ops;
+	struct io_pgtable_ops *ops = to_smmu_domain(domain)->pgtbl_ops;
 
 	if (!ops)
 		return -ENODEV;
 
-	spin_lock_irqsave(&smmu_domain->pgtbl_lock, flags);
-	ret = ops->map(ops, iova, paddr, size, prot);
-	spin_unlock_irqrestore(&smmu_domain->pgtbl_lock, flags);
-	return ret;
+	return ops->map(ops, iova, paddr, size, prot);
 }
 
 static size_t
 arm_smmu_unmap(struct iommu_domain *domain, unsigned long iova, size_t size)
 {
-	size_t ret;
-	unsigned long flags;
-	struct arm_smmu_domain *smmu_domain = to_smmu_domain(domain);
-	struct io_pgtable_ops *ops = smmu_domain->pgtbl_ops;
+	struct io_pgtable_ops *ops = to_smmu_domain(domain)->pgtbl_ops;
 
 	if (!ops)
 		return 0;
 
-	spin_lock_irqsave(&smmu_domain->pgtbl_lock, flags);
-	ret = ops->unmap(ops, iova, size);
-	spin_unlock_irqrestore(&smmu_domain->pgtbl_lock, flags);
-	return ret;
+	return ops->unmap(ops, iova, size);
 }
 
 static phys_addr_t
 arm_smmu_iova_to_phys(struct iommu_domain *domain, dma_addr_t iova)
 {
-	phys_addr_t ret;
-	unsigned long flags;
-	struct arm_smmu_domain *smmu_domain = to_smmu_domain(domain);
-	struct io_pgtable_ops *ops = smmu_domain->pgtbl_ops;
+	struct io_pgtable_ops *ops = to_smmu_domain(domain)->pgtbl_ops;
 
 	if (domain->type == IOMMU_DOMAIN_IDENTITY)
 		return iova;
@@ -1720,11 +1754,7 @@ arm_smmu_iova_to_phys(struct iommu_domain *domain, dma_addr_t iova)
 	if (!ops)
 		return 0;
 
-	spin_lock_irqsave(&smmu_domain->pgtbl_lock, flags);
-	ret = ops->iova_to_phys(ops, iova);
-	spin_unlock_irqrestore(&smmu_domain->pgtbl_lock, flags);
-
-	return ret;
+	return ops->iova_to_phys(ops, iova);
 }
 
 static struct platform_driver arm_smmu_driver;
@@ -1961,8 +1991,8 @@ static int arm_smmu_init_one_queue(struct arm_smmu_device *smmu,
 		return -ENOMEM;
 	}
 
-	q->prod_reg	= smmu->base + prod_off;
-	q->cons_reg	= smmu->base + cons_off;
+	q->prod_reg	= arm_smmu_page1_fixup(prod_off, smmu);
+	q->cons_reg	= arm_smmu_page1_fixup(cons_off, smmu);
 	q->ent_dwords	= dwords;
 
 	q->q_base  = Q_BASE_RWA;
@@ -2218,18 +2248,9 @@ static void arm_smmu_setup_msis(struct arm_smmu_device *smmu)
 	devm_add_action(dev, arm_smmu_free_msis, dev);
 }
 
-static int arm_smmu_setup_irqs(struct arm_smmu_device *smmu)
+static void arm_smmu_setup_unique_irqs(struct arm_smmu_device *smmu)
 {
-	int ret, irq;
-	u32 irqen_flags = IRQ_CTRL_EVTQ_IRQEN | IRQ_CTRL_GERROR_IRQEN;
-
-	/* Disable IRQs first */
-	ret = arm_smmu_write_reg_sync(smmu, 0, ARM_SMMU_IRQ_CTRL,
-				      ARM_SMMU_IRQ_CTRLACK);
-	if (ret) {
-		dev_err(smmu->dev, "failed to disable irqs\n");
-		return ret;
-	}
+	int irq, ret;
 
 	arm_smmu_setup_msis(smmu);
 
@@ -2272,10 +2293,41 @@ static int arm_smmu_setup_irqs(struct arm_smmu_device *smmu)
 			if (ret < 0)
 				dev_warn(smmu->dev,
 					 "failed to enable priq irq\n");
-			else
-				irqen_flags |= IRQ_CTRL_PRIQ_IRQEN;
 		}
 	}
+}
+
+static int arm_smmu_setup_irqs(struct arm_smmu_device *smmu)
+{
+	int ret, irq;
+	u32 irqen_flags = IRQ_CTRL_EVTQ_IRQEN | IRQ_CTRL_GERROR_IRQEN;
+
+	/* Disable IRQs first */
+	ret = arm_smmu_write_reg_sync(smmu, 0, ARM_SMMU_IRQ_CTRL,
+				      ARM_SMMU_IRQ_CTRLACK);
+	if (ret) {
+		dev_err(smmu->dev, "failed to disable irqs\n");
+		return ret;
+	}
+
+	irq = smmu->combined_irq;
+	if (irq) {
+		/*
+		 * Cavium ThunderX2 implementation doesn't not support unique
+		 * irq lines. Use single irq line for all the SMMUv3 interrupts.
+		 */
+		ret = devm_request_threaded_irq(smmu->dev, irq,
+					arm_smmu_combined_irq_handler,
+					arm_smmu_combined_irq_thread,
+					IRQF_ONESHOT,
+					"arm-smmu-v3-combined-irq", smmu);
+		if (ret < 0)
+			dev_warn(smmu->dev, "failed to enable combined irq\n");
+	} else
+		arm_smmu_setup_unique_irqs(smmu);
+
+	if (smmu->features & ARM_SMMU_FEAT_PRI)
+		irqen_flags |= IRQ_CTRL_PRIQ_IRQEN;
 
 	/* Enable interrupt generation on the SMMU */
 	ret = arm_smmu_write_reg_sync(smmu, irqen_flags,
@@ -2363,8 +2415,10 @@ static int arm_smmu_device_reset(struct arm_smmu_device *smmu, bool bypass)
 
 	/* Event queue */
 	writeq_relaxed(smmu->evtq.q.q_base, smmu->base + ARM_SMMU_EVTQ_BASE);
-	writel_relaxed(smmu->evtq.q.prod, smmu->base + ARM_SMMU_EVTQ_PROD);
-	writel_relaxed(smmu->evtq.q.cons, smmu->base + ARM_SMMU_EVTQ_CONS);
+	writel_relaxed(smmu->evtq.q.prod,
+		       arm_smmu_page1_fixup(ARM_SMMU_EVTQ_PROD, smmu));
+	writel_relaxed(smmu->evtq.q.cons,
+		       arm_smmu_page1_fixup(ARM_SMMU_EVTQ_CONS, smmu));
 
 	enables |= CR0_EVTQEN;
 	ret = arm_smmu_write_reg_sync(smmu, enables, ARM_SMMU_CR0,
@@ -2379,9 +2433,9 @@ static int arm_smmu_device_reset(struct arm_smmu_device *smmu, bool bypass)
 		writeq_relaxed(smmu->priq.q.q_base,
 			       smmu->base + ARM_SMMU_PRIQ_BASE);
 		writel_relaxed(smmu->priq.q.prod,
-			       smmu->base + ARM_SMMU_PRIQ_PROD);
+			       arm_smmu_page1_fixup(ARM_SMMU_PRIQ_PROD, smmu));
 		writel_relaxed(smmu->priq.q.cons,
-			       smmu->base + ARM_SMMU_PRIQ_CONS);
+			       arm_smmu_page1_fixup(ARM_SMMU_PRIQ_CONS, smmu));
 
 		enables |= CR0_PRIQEN;
 		ret = arm_smmu_write_reg_sync(smmu, enables, ARM_SMMU_CR0,
@@ -2605,6 +2659,20 @@ static int arm_smmu_device_hw_probe(struct arm_smmu_device *smmu)
 }
 
 #ifdef CONFIG_ACPI
+static void acpi_smmu_get_options(u32 model, struct arm_smmu_device *smmu)
+{
+	switch (model) {
+	case ACPI_IORT_SMMU_V3_CAVIUM_CN99XX:
+		smmu->options |= ARM_SMMU_OPT_PAGE0_REGS_ONLY;
+		break;
+	case ACPI_IORT_SMMU_HISILICON_HI161X:
+		smmu->options |= ARM_SMMU_OPT_SKIP_PREFETCH;
+		break;
+	}
+
+	dev_notice(smmu->dev, "option mask 0x%x\n", smmu->options);
+}
+
 static int arm_smmu_device_acpi_probe(struct platform_device *pdev,
 				      struct arm_smmu_device *smmu)
 {
@@ -2617,6 +2685,8 @@ static int arm_smmu_device_acpi_probe(struct platform_device *pdev,
 	/* Retrieve SMMUv3 specific data */
 	iort_smmu = (struct acpi_iort_smmu_v3 *)node->node_data;
 
+	acpi_smmu_get_options(iort_smmu->model, smmu);
+
 	if (iort_smmu->flags & ACPI_IORT_SMMU_V3_COHACC_OVERRIDE)
 		smmu->features |= ARM_SMMU_FEAT_COHERENCY;
 
@@ -2652,6 +2722,14 @@ static int arm_smmu_device_dt_probe(struct platform_device *pdev,
 	return ret;
 }
 
+static unsigned long arm_smmu_resource_size(struct arm_smmu_device *smmu)
+{
+	if (smmu->options & ARM_SMMU_OPT_PAGE0_REGS_ONLY)
+		return SZ_64K;
+	else
+		return SZ_128K;
+}
+
 static int arm_smmu_device_probe(struct platform_device *pdev)
 {
 	int irq, ret;
@@ -2668,9 +2746,20 @@ static int arm_smmu_device_probe(struct platform_device *pdev)
 	}
 	smmu->dev = dev;
 
+	if (dev->of_node) {
+		ret = arm_smmu_device_dt_probe(pdev, smmu);
+	} else {
+		ret = arm_smmu_device_acpi_probe(pdev, smmu);
+		if (ret == -ENODEV)
+			return ret;
+	}
+
+	/* Set bypass mode according to firmware probing result */
+	bypass = !!ret;
+
 	/* Base address */
 	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-	if (resource_size(res) + 1 < SZ_128K) {
+	if (resource_size(res) + 1 < arm_smmu_resource_size(smmu)) {
 		dev_err(dev, "MMIO region too small (%pr)\n", res);
 		return -EINVAL;
 	}
@@ -2681,33 +2770,27 @@ static int arm_smmu_device_probe(struct platform_device *pdev)
 		return PTR_ERR(smmu->base);
 
 	/* Interrupt lines */
-	irq = platform_get_irq_byname(pdev, "eventq");
-	if (irq > 0)
-		smmu->evtq.q.irq = irq;
 
-	irq = platform_get_irq_byname(pdev, "priq");
+	irq = platform_get_irq_byname(pdev, "combined");
 	if (irq > 0)
-		smmu->priq.q.irq = irq;
+		smmu->combined_irq = irq;
+	else {
+		irq = platform_get_irq_byname(pdev, "eventq");
+		if (irq > 0)
+			smmu->evtq.q.irq = irq;
 
-	irq = platform_get_irq_byname(pdev, "cmdq-sync");
-	if (irq > 0)
-		smmu->cmdq.q.irq = irq;
+		irq = platform_get_irq_byname(pdev, "priq");
+		if (irq > 0)
+			smmu->priq.q.irq = irq;
 
-	irq = platform_get_irq_byname(pdev, "gerror");
-	if (irq > 0)
-		smmu->gerr_irq = irq;
+		irq = platform_get_irq_byname(pdev, "cmdq-sync");
+		if (irq > 0)
+			smmu->cmdq.q.irq = irq;
 
-	if (dev->of_node) {
-		ret = arm_smmu_device_dt_probe(pdev, smmu);
-	} else {
-		ret = arm_smmu_device_acpi_probe(pdev, smmu);
-		if (ret == -ENODEV)
-			return ret;
+		irq = platform_get_irq_byname(pdev, "gerror");
+		if (irq > 0)
+			smmu->gerr_irq = irq;
 	}
-
-	/* Set bypass mode according to firmware probing result */
-	bypass = !!ret;
-
 	/* Probe the h/w */
 	ret = arm_smmu_device_hw_probe(smmu);
 	if (ret)
@@ -2736,6 +2819,10 @@ static int arm_smmu_device_probe(struct platform_device *pdev)
 	iommu_device_set_fwnode(&smmu->iommu, dev->fwnode);
 
 	ret = iommu_device_register(&smmu->iommu);
+	if (ret) {
+		dev_err(dev, "Failed to register iommu\n");
+		return ret;
+	}
 
 #ifdef CONFIG_PCI
 	if (pci_bus_type.iommu_ops != &arm_smmu_ops) {
@@ -2768,7 +2855,7 @@ static int arm_smmu_device_remove(struct platform_device *pdev)
 	return 0;
 }
 
-static struct of_device_id arm_smmu_of_match[] = {
+static const struct of_device_id arm_smmu_of_match[] = {
 	{ .compatible = "arm,smmu-v3", },
 	{ },
 };
diff --git a/drivers/iommu/arm-smmu.c b/drivers/iommu/arm-smmu.c
index 7ec30b08b3bd..2d80fa8a0634 100644
--- a/drivers/iommu/arm-smmu.c
+++ b/drivers/iommu/arm-smmu.c
@@ -312,6 +312,14 @@ enum arm_smmu_implementation {
 	CAVIUM_SMMUV2,
 };
 
+/* Until ACPICA headers cover IORT rev. C */
+#ifndef ACPI_IORT_SMMU_CORELINK_MMU401
+#define ACPI_IORT_SMMU_CORELINK_MMU401	0x4
+#endif
+#ifndef ACPI_IORT_SMMU_CAVIUM_THUNDERX
+#define ACPI_IORT_SMMU_CAVIUM_THUNDERX	0x5
+#endif
+
 struct arm_smmu_s2cr {
 	struct iommu_group		*group;
 	int				count;
@@ -392,6 +400,8 @@ struct arm_smmu_device {
 
 	u32				cavium_id_base; /* Specific to Cavium */
 
+	spinlock_t			global_sync_lock;
+
 	/* IOMMU core code handle */
 	struct iommu_device		iommu;
 };
@@ -425,10 +435,10 @@ enum arm_smmu_domain_stage {
 struct arm_smmu_domain {
 	struct arm_smmu_device		*smmu;
 	struct io_pgtable_ops		*pgtbl_ops;
-	spinlock_t			pgtbl_lock;
 	struct arm_smmu_cfg		cfg;
 	enum arm_smmu_domain_stage	stage;
 	struct mutex			init_mutex; /* Protects smmu pointer */
+	spinlock_t			cb_lock; /* Serialises ATS1* ops and TLB syncs */
 	struct iommu_domain		domain;
 };
 
@@ -594,9 +604,12 @@ static void __arm_smmu_tlb_sync(struct arm_smmu_device *smmu,
 static void arm_smmu_tlb_sync_global(struct arm_smmu_device *smmu)
 {
 	void __iomem *base = ARM_SMMU_GR0(smmu);
+	unsigned long flags;
 
+	spin_lock_irqsave(&smmu->global_sync_lock, flags);
 	__arm_smmu_tlb_sync(smmu, base + ARM_SMMU_GR0_sTLBGSYNC,
 			    base + ARM_SMMU_GR0_sTLBGSTATUS);
+	spin_unlock_irqrestore(&smmu->global_sync_lock, flags);
 }
 
 static void arm_smmu_tlb_sync_context(void *cookie)
@@ -604,9 +617,12 @@ static void arm_smmu_tlb_sync_context(void *cookie)
 	struct arm_smmu_domain *smmu_domain = cookie;
 	struct arm_smmu_device *smmu = smmu_domain->smmu;
 	void __iomem *base = ARM_SMMU_CB(smmu, smmu_domain->cfg.cbndx);
+	unsigned long flags;
 
+	spin_lock_irqsave(&smmu_domain->cb_lock, flags);
 	__arm_smmu_tlb_sync(smmu, base + ARM_SMMU_CB_TLBSYNC,
 			    base + ARM_SMMU_CB_TLBSTATUS);
+	spin_unlock_irqrestore(&smmu_domain->cb_lock, flags);
 }
 
 static void arm_smmu_tlb_sync_vmid(void *cookie)
@@ -1010,6 +1026,9 @@ static int arm_smmu_init_domain_context(struct iommu_domain *domain,
 		.iommu_dev	= smmu->dev,
 	};
 
+	if (smmu->features & ARM_SMMU_FEAT_COHERENT_WALK)
+		pgtbl_cfg.quirks = IO_PGTABLE_QUIRK_NO_DMA;
+
 	smmu_domain->smmu = smmu;
 	pgtbl_ops = alloc_io_pgtable_ops(fmt, &pgtbl_cfg, smmu_domain);
 	if (!pgtbl_ops) {
@@ -1102,7 +1121,7 @@ static struct iommu_domain *arm_smmu_domain_alloc(unsigned type)
 	}
 
 	mutex_init(&smmu_domain->init_mutex);
-	spin_lock_init(&smmu_domain->pgtbl_lock);
+	spin_lock_init(&smmu_domain->cb_lock);
 
 	return &smmu_domain->domain;
 }
@@ -1380,35 +1399,23 @@ static int arm_smmu_attach_dev(struct iommu_domain *domain, struct device *dev)
 static int arm_smmu_map(struct iommu_domain *domain, unsigned long iova,
 			phys_addr_t paddr, size_t size, int prot)
 {
-	int ret;
-	unsigned long flags;
-	struct arm_smmu_domain *smmu_domain = to_smmu_domain(domain);
-	struct io_pgtable_ops *ops= smmu_domain->pgtbl_ops;
+	struct io_pgtable_ops *ops = to_smmu_domain(domain)->pgtbl_ops;
 
 	if (!ops)
 		return -ENODEV;
 
-	spin_lock_irqsave(&smmu_domain->pgtbl_lock, flags);
-	ret = ops->map(ops, iova, paddr, size, prot);
-	spin_unlock_irqrestore(&smmu_domain->pgtbl_lock, flags);
-	return ret;
+	return ops->map(ops, iova, paddr, size, prot);
 }
 
 static size_t arm_smmu_unmap(struct iommu_domain *domain, unsigned long iova,
 			     size_t size)
 {
-	size_t ret;
-	unsigned long flags;
-	struct arm_smmu_domain *smmu_domain = to_smmu_domain(domain);
-	struct io_pgtable_ops *ops= smmu_domain->pgtbl_ops;
+	struct io_pgtable_ops *ops = to_smmu_domain(domain)->pgtbl_ops;
 
 	if (!ops)
 		return 0;
 
-	spin_lock_irqsave(&smmu_domain->pgtbl_lock, flags);
-	ret = ops->unmap(ops, iova, size);
-	spin_unlock_irqrestore(&smmu_domain->pgtbl_lock, flags);
-	return ret;
+	return ops->unmap(ops, iova, size);
 }
 
 static phys_addr_t arm_smmu_iova_to_phys_hard(struct iommu_domain *domain,
@@ -1422,10 +1429,11 @@ static phys_addr_t arm_smmu_iova_to_phys_hard(struct iommu_domain *domain,
 	void __iomem *cb_base;
 	u32 tmp;
 	u64 phys;
-	unsigned long va;
+	unsigned long va, flags;
 
 	cb_base = ARM_SMMU_CB(smmu, cfg->cbndx);
 
+	spin_lock_irqsave(&smmu_domain->cb_lock, flags);
 	/* ATS1 registers can only be written atomically */
 	va = iova & ~0xfffUL;
 	if (smmu->version == ARM_SMMU_V2)
@@ -1435,6 +1443,7 @@ static phys_addr_t arm_smmu_iova_to_phys_hard(struct iommu_domain *domain,
 
 	if (readl_poll_timeout_atomic(cb_base + ARM_SMMU_CB_ATSR, tmp,
 				      !(tmp & ATSR_ACTIVE), 5, 50)) {
+		spin_unlock_irqrestore(&smmu_domain->cb_lock, flags);
 		dev_err(dev,
 			"iova to phys timed out on %pad. Falling back to software table walk.\n",
 			&iova);
@@ -1442,6 +1451,7 @@ static phys_addr_t arm_smmu_iova_to_phys_hard(struct iommu_domain *domain,
 	}
 
 	phys = readq_relaxed(cb_base + ARM_SMMU_CB_PAR);
+	spin_unlock_irqrestore(&smmu_domain->cb_lock, flags);
 	if (phys & CB_PAR_F) {
 		dev_err(dev, "translation fault!\n");
 		dev_err(dev, "PAR = 0x%llx\n", phys);
@@ -1454,10 +1464,8 @@ static phys_addr_t arm_smmu_iova_to_phys_hard(struct iommu_domain *domain,
 static phys_addr_t arm_smmu_iova_to_phys(struct iommu_domain *domain,
 					dma_addr_t iova)
 {
-	phys_addr_t ret;
-	unsigned long flags;
 	struct arm_smmu_domain *smmu_domain = to_smmu_domain(domain);
-	struct io_pgtable_ops *ops= smmu_domain->pgtbl_ops;
+	struct io_pgtable_ops *ops = smmu_domain->pgtbl_ops;
 
 	if (domain->type == IOMMU_DOMAIN_IDENTITY)
 		return iova;
@@ -1465,17 +1473,11 @@ static phys_addr_t arm_smmu_iova_to_phys(struct iommu_domain *domain,
 	if (!ops)
 		return 0;
 
-	spin_lock_irqsave(&smmu_domain->pgtbl_lock, flags);
 	if (smmu_domain->smmu->features & ARM_SMMU_FEAT_TRANS_OPS &&
-			smmu_domain->stage == ARM_SMMU_DOMAIN_S1) {
-		ret = arm_smmu_iova_to_phys_hard(domain, iova);
-	} else {
-		ret = ops->iova_to_phys(ops, iova);
-	}
-
-	spin_unlock_irqrestore(&smmu_domain->pgtbl_lock, flags);
+			smmu_domain->stage == ARM_SMMU_DOMAIN_S1)
+		return arm_smmu_iova_to_phys_hard(domain, iova);
 
-	return ret;
+	return ops->iova_to_phys(ops, iova);
 }
 
 static bool arm_smmu_capable(enum iommu_cap cap)
@@ -1517,6 +1519,12 @@ static int arm_smmu_add_device(struct device *dev)
 
 	if (using_legacy_binding) {
 		ret = arm_smmu_register_legacy_master(dev, &smmu);
+
+		/*
+		 * If dev->iommu_fwspec is initally NULL, arm_smmu_register_legacy_master()
+		 * will allocate/initialise a new one. Thus we need to update fwspec for
+		 * later use.
+		 */
 		fwspec = dev->iommu_fwspec;
 		if (ret)
 			goto out_free;
@@ -1556,15 +1564,15 @@ static int arm_smmu_add_device(struct device *dev)
 
 	ret = arm_smmu_master_alloc_smes(dev);
 	if (ret)
-		goto out_free;
+		goto out_cfg_free;
 
 	iommu_device_link(&smmu->iommu, dev);
 
 	return 0;
 
+out_cfg_free:
+	kfree(cfg);
 out_free:
-	if (fwspec)
-		kfree(fwspec->iommu_priv);
 	iommu_fwspec_free(dev);
 	return ret;
 }
@@ -1931,6 +1939,7 @@ static int arm_smmu_device_cfg_probe(struct arm_smmu_device *smmu)
 
 	smmu->num_mapping_groups = size;
 	mutex_init(&smmu->stream_map_mutex);
+	spin_lock_init(&smmu->global_sync_lock);
 
 	if (smmu->version < ARM_SMMU_V2 || !(id & ID0_PTFS_NO_AARCH32)) {
 		smmu->features |= ARM_SMMU_FEAT_FMT_AARCH32_L;
@@ -2073,6 +2082,10 @@ static int acpi_smmu_get_data(u32 model, struct arm_smmu_device *smmu)
 		smmu->version = ARM_SMMU_V1;
 		smmu->model = GENERIC_SMMU;
 		break;
+	case ACPI_IORT_SMMU_CORELINK_MMU401:
+		smmu->version = ARM_SMMU_V1_64K;
+		smmu->model = GENERIC_SMMU;
+		break;
 	case ACPI_IORT_SMMU_V2:
 		smmu->version = ARM_SMMU_V2;
 		smmu->model = GENERIC_SMMU;
@@ -2081,6 +2094,10 @@ static int acpi_smmu_get_data(u32 model, struct arm_smmu_device *smmu)
 		smmu->version = ARM_SMMU_V2;
 		smmu->model = ARM_MMU500;
 		break;
+	case ACPI_IORT_SMMU_CAVIUM_THUNDERX:
+		smmu->version = ARM_SMMU_V2;
+		smmu->model = CAVIUM_SMMUV2;
+		break;
 	default:
 		ret = -ENODEV;
 	}
diff --git a/drivers/iommu/dma-iommu.c b/drivers/iommu/dma-iommu.c
index 9403336f1fa6..9d1cebe7f6cb 100644
--- a/drivers/iommu/dma-iommu.c
+++ b/drivers/iommu/dma-iommu.c
@@ -316,7 +316,7 @@ int iommu_dma_init_domain(struct iommu_domain *domain, dma_addr_t base,
 		 * If we have devices with different DMA masks, move the free
 		 * area cache limit down for the benefit of the smaller one.
 		 */
-		iovad->dma_32bit_pfn = min(end_pfn, iovad->dma_32bit_pfn);
+		iovad->dma_32bit_pfn = min(end_pfn + 1, iovad->dma_32bit_pfn);
 
 		return 0;
 	}
diff --git a/drivers/iommu/intel-iommu.c b/drivers/iommu/intel-iommu.c
index 1e95475883cd..687f18f65cea 100644
--- a/drivers/iommu/intel-iommu.c
+++ b/drivers/iommu/intel-iommu.c
@@ -481,7 +481,7 @@ struct deferred_flush_data {
 	struct deferred_flush_table *tables;
 };
 
-DEFINE_PER_CPU(struct deferred_flush_data, deferred_flush);
+static DEFINE_PER_CPU(struct deferred_flush_data, deferred_flush);
 
 /* bitmap for indexing intel_iommus */
 static int g_num_of_iommus;
@@ -2390,7 +2390,7 @@ static struct dmar_domain *find_domain(struct device *dev)
 
 	/* No lock here, assumes no domain exit in normal case */
 	info = dev->archdata.iommu;
-	if (info)
+	if (likely(info))
 		return info->domain;
 	return NULL;
 }
@@ -3478,7 +3478,7 @@ static unsigned long intel_alloc_iova(struct device *dev,
 	return iova_pfn;
 }
 
-static struct dmar_domain *__get_valid_domain_for_dev(struct device *dev)
+static struct dmar_domain *get_valid_domain_for_dev(struct device *dev)
 {
 	struct dmar_domain *domain, *tmp;
 	struct dmar_rmrr_unit *rmrr;
@@ -3525,18 +3525,6 @@ out:
 	return domain;
 }
 
-static inline struct dmar_domain *get_valid_domain_for_dev(struct device *dev)
-{
-	struct device_domain_info *info;
-
-	/* No lock here, assumes no domain exit in normal case */
-	info = dev->archdata.iommu;
-	if (likely(info))
-		return info->domain;
-
-	return __get_valid_domain_for_dev(dev);
-}
-
 /* Check if the dev needs to go through non-identity map and unmap process.*/
 static int iommu_no_mapping(struct device *dev)
 {
@@ -3725,10 +3713,8 @@ static void add_unmap(struct dmar_domain *dom, unsigned long iova_pfn,
 	struct intel_iommu *iommu;
 	struct deferred_flush_entry *entry;
 	struct deferred_flush_data *flush_data;
-	unsigned int cpuid;
 
-	cpuid = get_cpu();
-	flush_data = per_cpu_ptr(&deferred_flush, cpuid);
+	flush_data = raw_cpu_ptr(&deferred_flush);
 
 	/* Flush all CPUs' entries to avoid deferring too much.  If
 	 * this becomes a bottleneck, can just flush us, and rely on
@@ -3761,8 +3747,6 @@ static void add_unmap(struct dmar_domain *dom, unsigned long iova_pfn,
 	}
 	flush_data->size++;
 	spin_unlock_irqrestore(&flush_data->lock, flags);
-
-	put_cpu();
 }
 
 static void intel_unmap(struct device *dev, dma_addr_t dev_addr, size_t size)
@@ -3973,7 +3957,7 @@ static int intel_mapping_error(struct device *dev, dma_addr_t dma_addr)
 	return !dma_addr;
 }
 
-struct dma_map_ops intel_dma_ops = {
+const struct dma_map_ops intel_dma_ops = {
 	.alloc = intel_alloc_coherent,
 	.free = intel_free_coherent,
 	.map_sg = intel_map_sg,
diff --git a/drivers/iommu/intel-svm.c b/drivers/iommu/intel-svm.c
index 23c427602c55..f167c0d84ebf 100644
--- a/drivers/iommu/intel-svm.c
+++ b/drivers/iommu/intel-svm.c
@@ -489,6 +489,36 @@ int intel_svm_unbind_mm(struct device *dev, int pasid)
 }
 EXPORT_SYMBOL_GPL(intel_svm_unbind_mm);
 
+int intel_svm_is_pasid_valid(struct device *dev, int pasid)
+{
+	struct intel_iommu *iommu;
+	struct intel_svm *svm;
+	int ret = -EINVAL;
+
+	mutex_lock(&pasid_mutex);
+	iommu = intel_svm_device_to_iommu(dev);
+	if (!iommu || !iommu->pasid_table)
+		goto out;
+
+	svm = idr_find(&iommu->pasid_idr, pasid);
+	if (!svm)
+		goto out;
+
+	/* init_mm is used in this case */
+	if (!svm->mm)
+		ret = 1;
+	else if (atomic_read(&svm->mm->mm_users) > 0)
+		ret = 1;
+	else
+		ret = 0;
+
+ out:
+	mutex_unlock(&pasid_mutex);
+
+	return ret;
+}
+EXPORT_SYMBOL_GPL(intel_svm_is_pasid_valid);
+
 /* Page request queue descriptor */
 struct page_req_dsc {
 	u64 srr:1;
diff --git a/drivers/iommu/intel_irq_remapping.c b/drivers/iommu/intel_irq_remapping.c
index 8fc641ea2e41..a5b89f6bcdbf 100644
--- a/drivers/iommu/intel_irq_remapping.c
+++ b/drivers/iommu/intel_irq_remapping.c
@@ -76,7 +76,7 @@ static struct hpet_scope ir_hpet[MAX_HPET_TBS];
  * the dmar_global_lock.
  */
 static DEFINE_RAW_SPINLOCK(irq_2_ir_lock);
-static struct irq_domain_ops intel_ir_domain_ops;
+static const struct irq_domain_ops intel_ir_domain_ops;
 
 static void iommu_disable_irq_remapping(struct intel_iommu *iommu);
 static int __init parse_ioapics_under_ir(void);
@@ -1407,7 +1407,7 @@ static void intel_irq_remapping_deactivate(struct irq_domain *domain,
 	modify_irte(&data->irq_2_iommu, &entry);
 }
 
-static struct irq_domain_ops intel_ir_domain_ops = {
+static const struct irq_domain_ops intel_ir_domain_ops = {
 	.alloc = intel_irq_remapping_alloc,
 	.free = intel_irq_remapping_free,
 	.activate = intel_irq_remapping_activate,
diff --git a/drivers/iommu/io-pgtable-arm-v7s.c b/drivers/iommu/io-pgtable-arm-v7s.c
index 8d6ca28c3e1f..d665d0dc16e8 100644
--- a/drivers/iommu/io-pgtable-arm-v7s.c
+++ b/drivers/iommu/io-pgtable-arm-v7s.c
@@ -32,6 +32,7 @@
 
 #define pr_fmt(fmt)	"arm-v7s io-pgtable: " fmt
 
+#include <linux/atomic.h>
 #include <linux/dma-mapping.h>
 #include <linux/gfp.h>
 #include <linux/iommu.h>
@@ -39,6 +40,7 @@
 #include <linux/kmemleak.h>
 #include <linux/sizes.h>
 #include <linux/slab.h>
+#include <linux/spinlock.h>
 #include <linux/types.h>
 
 #include <asm/barrier.h>
@@ -92,7 +94,8 @@
 #define ARM_V7S_PTE_TYPE_CONT_PAGE	0x1
 
 #define ARM_V7S_PTE_IS_VALID(pte)	(((pte) & 0x3) != 0)
-#define ARM_V7S_PTE_IS_TABLE(pte, lvl)	(lvl == 1 && ((pte) & ARM_V7S_PTE_TYPE_TABLE))
+#define ARM_V7S_PTE_IS_TABLE(pte, lvl) \
+	((lvl) == 1 && (((pte) & 0x3) == ARM_V7S_PTE_TYPE_TABLE))
 
 /* Page table bits */
 #define ARM_V7S_ATTR_XN(lvl)		BIT(4 * (2 - (lvl)))
@@ -167,6 +170,7 @@ struct arm_v7s_io_pgtable {
 
 	arm_v7s_iopte		*pgd;
 	struct kmem_cache	*l2_tables;
+	spinlock_t		split_lock;
 };
 
 static dma_addr_t __arm_v7s_dma_addr(void *pages)
@@ -186,7 +190,8 @@ static arm_v7s_iopte *iopte_deref(arm_v7s_iopte pte, int lvl)
 static void *__arm_v7s_alloc_table(int lvl, gfp_t gfp,
 				   struct arm_v7s_io_pgtable *data)
 {
-	struct device *dev = data->iop.cfg.iommu_dev;
+	struct io_pgtable_cfg *cfg = &data->iop.cfg;
+	struct device *dev = cfg->iommu_dev;
 	dma_addr_t dma;
 	size_t size = ARM_V7S_TABLE_SIZE(lvl);
 	void *table = NULL;
@@ -195,7 +200,7 @@ static void *__arm_v7s_alloc_table(int lvl, gfp_t gfp,
 		table = (void *)__get_dma_pages(__GFP_ZERO, get_order(size));
 	else if (lvl == 2)
 		table = kmem_cache_zalloc(data->l2_tables, gfp | GFP_DMA);
-	if (table && !selftest_running) {
+	if (table && !(cfg->quirks & IO_PGTABLE_QUIRK_NO_DMA)) {
 		dma = dma_map_single(dev, table, size, DMA_TO_DEVICE);
 		if (dma_mapping_error(dev, dma))
 			goto out_free;
@@ -224,10 +229,11 @@ out_free:
 static void __arm_v7s_free_table(void *table, int lvl,
 				 struct arm_v7s_io_pgtable *data)
 {
-	struct device *dev = data->iop.cfg.iommu_dev;
+	struct io_pgtable_cfg *cfg = &data->iop.cfg;
+	struct device *dev = cfg->iommu_dev;
 	size_t size = ARM_V7S_TABLE_SIZE(lvl);
 
-	if (!selftest_running)
+	if (!(cfg->quirks & IO_PGTABLE_QUIRK_NO_DMA))
 		dma_unmap_single(dev, __arm_v7s_dma_addr(table), size,
 				 DMA_TO_DEVICE);
 	if (lvl == 1)
@@ -239,7 +245,7 @@ static void __arm_v7s_free_table(void *table, int lvl,
 static void __arm_v7s_pte_sync(arm_v7s_iopte *ptep, int num_entries,
 			       struct io_pgtable_cfg *cfg)
 {
-	if (selftest_running)
+	if (!(cfg->quirks & IO_PGTABLE_QUIRK_NO_DMA))
 		return;
 
 	dma_sync_single_for_device(cfg->iommu_dev, __arm_v7s_dma_addr(ptep),
@@ -280,6 +286,13 @@ static arm_v7s_iopte arm_v7s_prot_to_pte(int prot, int lvl,
 	else if (prot & IOMMU_CACHE)
 		pte |= ARM_V7S_ATTR_B | ARM_V7S_ATTR_C;
 
+	pte |= ARM_V7S_PTE_TYPE_PAGE;
+	if (lvl == 1 && (cfg->quirks & IO_PGTABLE_QUIRK_ARM_NS))
+		pte |= ARM_V7S_ATTR_NS_SECTION;
+
+	if (cfg->quirks & IO_PGTABLE_QUIRK_ARM_MTK_4GB)
+		pte |= ARM_V7S_ATTR_MTK_4GB;
+
 	return pte;
 }
 
@@ -352,7 +365,7 @@ static int arm_v7s_init_pte(struct arm_v7s_io_pgtable *data,
 			    int lvl, int num_entries, arm_v7s_iopte *ptep)
 {
 	struct io_pgtable_cfg *cfg = &data->iop.cfg;
-	arm_v7s_iopte pte = arm_v7s_prot_to_pte(prot, lvl, cfg);
+	arm_v7s_iopte pte;
 	int i;
 
 	for (i = 0; i < num_entries; i++)
@@ -374,13 +387,7 @@ static int arm_v7s_init_pte(struct arm_v7s_io_pgtable *data,
 			return -EEXIST;
 		}
 
-	pte |= ARM_V7S_PTE_TYPE_PAGE;
-	if (lvl == 1 && (cfg->quirks & IO_PGTABLE_QUIRK_ARM_NS))
-		pte |= ARM_V7S_ATTR_NS_SECTION;
-
-	if (cfg->quirks & IO_PGTABLE_QUIRK_ARM_MTK_4GB)
-		pte |= ARM_V7S_ATTR_MTK_4GB;
-
+	pte = arm_v7s_prot_to_pte(prot, lvl, cfg);
 	if (num_entries > 1)
 		pte = arm_v7s_pte_to_cont(pte, lvl);
 
@@ -390,6 +397,30 @@ static int arm_v7s_init_pte(struct arm_v7s_io_pgtable *data,
 	return 0;
 }
 
+static arm_v7s_iopte arm_v7s_install_table(arm_v7s_iopte *table,
+					   arm_v7s_iopte *ptep,
+					   arm_v7s_iopte curr,
+					   struct io_pgtable_cfg *cfg)
+{
+	arm_v7s_iopte old, new;
+
+	new = virt_to_phys(table) | ARM_V7S_PTE_TYPE_TABLE;
+	if (cfg->quirks & IO_PGTABLE_QUIRK_ARM_NS)
+		new |= ARM_V7S_ATTR_NS_TABLE;
+
+	/*
+	 * Ensure the table itself is visible before its PTE can be.
+	 * Whilst we could get away with cmpxchg64_release below, this
+	 * doesn't have any ordering semantics when !CONFIG_SMP.
+	 */
+	dma_wmb();
+
+	old = cmpxchg_relaxed(ptep, curr, new);
+	__arm_v7s_pte_sync(ptep, 1, cfg);
+
+	return old;
+}
+
 static int __arm_v7s_map(struct arm_v7s_io_pgtable *data, unsigned long iova,
 			 phys_addr_t paddr, size_t size, int prot,
 			 int lvl, arm_v7s_iopte *ptep)
@@ -411,20 +442,23 @@ static int __arm_v7s_map(struct arm_v7s_io_pgtable *data, unsigned long iova,
 		return -EINVAL;
 
 	/* Grab a pointer to the next level */
-	pte = *ptep;
+	pte = READ_ONCE(*ptep);
 	if (!pte) {
 		cptep = __arm_v7s_alloc_table(lvl + 1, GFP_ATOMIC, data);
 		if (!cptep)
 			return -ENOMEM;
 
-		pte = virt_to_phys(cptep) | ARM_V7S_PTE_TYPE_TABLE;
-		if (cfg->quirks & IO_PGTABLE_QUIRK_ARM_NS)
-			pte |= ARM_V7S_ATTR_NS_TABLE;
+		pte = arm_v7s_install_table(cptep, ptep, 0, cfg);
+		if (pte)
+			__arm_v7s_free_table(cptep, lvl + 1, data);
+	} else {
+		/* We've no easy way of knowing if it's synced yet, so... */
+		__arm_v7s_pte_sync(ptep, 1, cfg);
+	}
 
-		__arm_v7s_set_pte(ptep, pte, 1, cfg);
-	} else if (ARM_V7S_PTE_IS_TABLE(pte, lvl)) {
+	if (ARM_V7S_PTE_IS_TABLE(pte, lvl)) {
 		cptep = iopte_deref(pte, lvl);
-	} else {
+	} else if (pte) {
 		/* We require an unmap first */
 		WARN_ON(!selftest_running);
 		return -EEXIST;
@@ -445,6 +479,9 @@ static int arm_v7s_map(struct io_pgtable_ops *ops, unsigned long iova,
 	if (!(prot & (IOMMU_READ | IOMMU_WRITE)))
 		return 0;
 
+	if (WARN_ON(upper_32_bits(iova) || upper_32_bits(paddr)))
+		return -ERANGE;
+
 	ret = __arm_v7s_map(data, iova, paddr, size, prot, 1, data->pgd);
 	/*
 	 * Synchronise all PTE updates for the new mapping before there's
@@ -477,66 +514,73 @@ static void arm_v7s_free_pgtable(struct io_pgtable *iop)
 	kfree(data);
 }
 
-static void arm_v7s_split_cont(struct arm_v7s_io_pgtable *data,
-			       unsigned long iova, int idx, int lvl,
-			       arm_v7s_iopte *ptep)
+static arm_v7s_iopte arm_v7s_split_cont(struct arm_v7s_io_pgtable *data,
+					unsigned long iova, int idx, int lvl,
+					arm_v7s_iopte *ptep)
 {
 	struct io_pgtable *iop = &data->iop;
 	arm_v7s_iopte pte;
 	size_t size = ARM_V7S_BLOCK_SIZE(lvl);
 	int i;
 
+	/* Check that we didn't lose a race to get the lock */
+	pte = *ptep;
+	if (!arm_v7s_pte_is_cont(pte, lvl))
+		return pte;
+
 	ptep -= idx & (ARM_V7S_CONT_PAGES - 1);
-	pte = arm_v7s_cont_to_pte(*ptep, lvl);
-	for (i = 0; i < ARM_V7S_CONT_PAGES; i++) {
-		ptep[i] = pte;
-		pte += size;
-	}
+	pte = arm_v7s_cont_to_pte(pte, lvl);
+	for (i = 0; i < ARM_V7S_CONT_PAGES; i++)
+		ptep[i] = pte + i * size;
 
 	__arm_v7s_pte_sync(ptep, ARM_V7S_CONT_PAGES, &iop->cfg);
 
 	size *= ARM_V7S_CONT_PAGES;
 	io_pgtable_tlb_add_flush(iop, iova, size, size, true);
 	io_pgtable_tlb_sync(iop);
+	return pte;
 }
 
 static int arm_v7s_split_blk_unmap(struct arm_v7s_io_pgtable *data,
 				   unsigned long iova, size_t size,
-				   arm_v7s_iopte *ptep)
+				   arm_v7s_iopte blk_pte, arm_v7s_iopte *ptep)
 {
-	unsigned long blk_start, blk_end, blk_size;
-	phys_addr_t blk_paddr;
-	arm_v7s_iopte table = 0;
-	int prot = arm_v7s_pte_to_prot(*ptep, 1);
+	struct io_pgtable_cfg *cfg = &data->iop.cfg;
+	arm_v7s_iopte pte, *tablep;
+	int i, unmap_idx, num_entries, num_ptes;
 
-	blk_size = ARM_V7S_BLOCK_SIZE(1);
-	blk_start = iova & ARM_V7S_LVL_MASK(1);
-	blk_end = blk_start + ARM_V7S_BLOCK_SIZE(1);
-	blk_paddr = *ptep & ARM_V7S_LVL_MASK(1);
+	tablep = __arm_v7s_alloc_table(2, GFP_ATOMIC, data);
+	if (!tablep)
+		return 0; /* Bytes unmapped */
 
-	for (; blk_start < blk_end; blk_start += size, blk_paddr += size) {
-		arm_v7s_iopte *tablep;
+	num_ptes = ARM_V7S_PTES_PER_LVL(2);
+	num_entries = size >> ARM_V7S_LVL_SHIFT(2);
+	unmap_idx = ARM_V7S_LVL_IDX(iova, 2);
 
+	pte = arm_v7s_prot_to_pte(arm_v7s_pte_to_prot(blk_pte, 1), 2, cfg);
+	if (num_entries > 1)
+		pte = arm_v7s_pte_to_cont(pte, 2);
+
+	for (i = 0; i < num_ptes; i += num_entries, pte += size) {
 		/* Unmap! */
-		if (blk_start == iova)
+		if (i == unmap_idx)
 			continue;
 
-		/* __arm_v7s_map expects a pointer to the start of the table */
-		tablep = &table - ARM_V7S_LVL_IDX(blk_start, 1);
-		if (__arm_v7s_map(data, blk_start, blk_paddr, size, prot, 1,
-				  tablep) < 0) {
-			if (table) {
-				/* Free the table we allocated */
-				tablep = iopte_deref(table, 1);
-				__arm_v7s_free_table(tablep, 2, data);
-			}
-			return 0; /* Bytes unmapped */
-		}
+		__arm_v7s_set_pte(&tablep[i], pte, num_entries, cfg);
+	}
+
+	pte = arm_v7s_install_table(tablep, ptep, blk_pte, cfg);
+	if (pte != blk_pte) {
+		__arm_v7s_free_table(tablep, 2, data);
+
+		if (!ARM_V7S_PTE_IS_TABLE(pte, 1))
+			return 0;
+
+		tablep = iopte_deref(pte, 1);
+		return __arm_v7s_unmap(data, iova, size, 2, tablep);
 	}
 
-	__arm_v7s_set_pte(ptep, table, 1, &data->iop.cfg);
-	iova &= ~(blk_size - 1);
-	io_pgtable_tlb_add_flush(&data->iop, iova, blk_size, blk_size, true);
+	io_pgtable_tlb_add_flush(&data->iop, iova, size, size, true);
 	return size;
 }
 
@@ -555,17 +599,28 @@ static int __arm_v7s_unmap(struct arm_v7s_io_pgtable *data,
 	idx = ARM_V7S_LVL_IDX(iova, lvl);
 	ptep += idx;
 	do {
-		if (WARN_ON(!ARM_V7S_PTE_IS_VALID(ptep[i])))
+		pte[i] = READ_ONCE(ptep[i]);
+		if (WARN_ON(!ARM_V7S_PTE_IS_VALID(pte[i])))
 			return 0;
-		pte[i] = ptep[i];
 	} while (++i < num_entries);
 
 	/*
 	 * If we've hit a contiguous 'large page' entry at this level, it
 	 * needs splitting first, unless we're unmapping the whole lot.
+	 *
+	 * For splitting, we can't rewrite 16 PTEs atomically, and since we
+	 * can't necessarily assume TEX remap we don't have a software bit to
+	 * mark live entries being split. In practice (i.e. DMA API code), we
+	 * will never be splitting large pages anyway, so just wrap this edge
+	 * case in a lock for the sake of correctness and be done with it.
 	 */
-	if (num_entries <= 1 && arm_v7s_pte_is_cont(pte[0], lvl))
-		arm_v7s_split_cont(data, iova, idx, lvl, ptep);
+	if (num_entries <= 1 && arm_v7s_pte_is_cont(pte[0], lvl)) {
+		unsigned long flags;
+
+		spin_lock_irqsave(&data->split_lock, flags);
+		pte[0] = arm_v7s_split_cont(data, iova, idx, lvl, ptep);
+		spin_unlock_irqrestore(&data->split_lock, flags);
+	}
 
 	/* If the size matches this level, we're in the right place */
 	if (num_entries) {
@@ -593,7 +648,7 @@ static int __arm_v7s_unmap(struct arm_v7s_io_pgtable *data,
 		 * Insert a table at the next level to map the old region,
 		 * minus the part we want to unmap
 		 */
-		return arm_v7s_split_blk_unmap(data, iova, size, ptep);
+		return arm_v7s_split_blk_unmap(data, iova, size, pte[0], ptep);
 	}
 
 	/* Keep on walkin' */
@@ -607,6 +662,9 @@ static int arm_v7s_unmap(struct io_pgtable_ops *ops, unsigned long iova,
 	struct arm_v7s_io_pgtable *data = io_pgtable_ops_to_data(ops);
 	size_t unmapped;
 
+	if (WARN_ON(upper_32_bits(iova)))
+		return 0;
+
 	unmapped = __arm_v7s_unmap(data, iova, size, 1, data->pgd);
 	if (unmapped)
 		io_pgtable_tlb_sync(&data->iop);
@@ -623,7 +681,8 @@ static phys_addr_t arm_v7s_iova_to_phys(struct io_pgtable_ops *ops,
 	u32 mask;
 
 	do {
-		pte = ptep[ARM_V7S_LVL_IDX(iova, ++lvl)];
+		ptep += ARM_V7S_LVL_IDX(iova, ++lvl);
+		pte = READ_ONCE(*ptep);
 		ptep = iopte_deref(pte, lvl);
 	} while (ARM_V7S_PTE_IS_TABLE(pte, lvl));
 
@@ -651,7 +710,8 @@ static struct io_pgtable *arm_v7s_alloc_pgtable(struct io_pgtable_cfg *cfg,
 	if (cfg->quirks & ~(IO_PGTABLE_QUIRK_ARM_NS |
 			    IO_PGTABLE_QUIRK_NO_PERMS |
 			    IO_PGTABLE_QUIRK_TLBI_ON_MAP |
-			    IO_PGTABLE_QUIRK_ARM_MTK_4GB))
+			    IO_PGTABLE_QUIRK_ARM_MTK_4GB |
+			    IO_PGTABLE_QUIRK_NO_DMA))
 		return NULL;
 
 	/* If ARM_MTK_4GB is enabled, the NO_PERMS is also expected. */
@@ -663,6 +723,7 @@ static struct io_pgtable *arm_v7s_alloc_pgtable(struct io_pgtable_cfg *cfg,
 	if (!data)
 		return NULL;
 
+	spin_lock_init(&data->split_lock);
 	data->l2_tables = kmem_cache_create("io-pgtable_armv7s_l2",
 					    ARM_V7S_TABLE_SIZE(2),
 					    ARM_V7S_TABLE_SIZE(2),
@@ -749,7 +810,7 @@ static void dummy_tlb_sync(void *cookie)
 	WARN_ON(cookie != cfg_cookie);
 }
 
-static struct iommu_gather_ops dummy_tlb_ops = {
+static const struct iommu_gather_ops dummy_tlb_ops = {
 	.tlb_flush_all	= dummy_tlb_flush_all,
 	.tlb_add_flush	= dummy_tlb_add_flush,
 	.tlb_sync	= dummy_tlb_sync,
@@ -768,7 +829,7 @@ static int __init arm_v7s_do_selftests(void)
 		.tlb = &dummy_tlb_ops,
 		.oas = 32,
 		.ias = 32,
-		.quirks = IO_PGTABLE_QUIRK_ARM_NS,
+		.quirks = IO_PGTABLE_QUIRK_ARM_NS | IO_PGTABLE_QUIRK_NO_DMA,
 		.pgsize_bitmap = SZ_4K | SZ_64K | SZ_1M | SZ_16M,
 	};
 	unsigned int iova, size, iova_start;
diff --git a/drivers/iommu/io-pgtable-arm.c b/drivers/iommu/io-pgtable-arm.c
index 6e5df5e0a3bd..e8018a308868 100644
--- a/drivers/iommu/io-pgtable-arm.c
+++ b/drivers/iommu/io-pgtable-arm.c
@@ -20,6 +20,7 @@
 
 #define pr_fmt(fmt)	"arm-lpae io-pgtable: " fmt
 
+#include <linux/atomic.h>
 #include <linux/iommu.h>
 #include <linux/kernel.h>
 #include <linux/sizes.h>
@@ -99,6 +100,8 @@
 #define ARM_LPAE_PTE_ATTR_HI_MASK	(((arm_lpae_iopte)6) << 52)
 #define ARM_LPAE_PTE_ATTR_MASK		(ARM_LPAE_PTE_ATTR_LO_MASK |	\
 					 ARM_LPAE_PTE_ATTR_HI_MASK)
+/* Software bit for solving coherency races */
+#define ARM_LPAE_PTE_SW_SYNC		(((arm_lpae_iopte)1) << 55)
 
 /* Stage-1 PTE */
 #define ARM_LPAE_PTE_AP_UNPRIV		(((arm_lpae_iopte)1) << 6)
@@ -217,7 +220,7 @@ static void *__arm_lpae_alloc_pages(size_t size, gfp_t gfp,
 	if (!pages)
 		return NULL;
 
-	if (!selftest_running) {
+	if (!(cfg->quirks & IO_PGTABLE_QUIRK_NO_DMA)) {
 		dma = dma_map_single(dev, pages, size, DMA_TO_DEVICE);
 		if (dma_mapping_error(dev, dma))
 			goto out_free;
@@ -243,40 +246,64 @@ out_free:
 static void __arm_lpae_free_pages(void *pages, size_t size,
 				  struct io_pgtable_cfg *cfg)
 {
-	if (!selftest_running)
+	if (!(cfg->quirks & IO_PGTABLE_QUIRK_NO_DMA))
 		dma_unmap_single(cfg->iommu_dev, __arm_lpae_dma_addr(pages),
 				 size, DMA_TO_DEVICE);
 	free_pages_exact(pages, size);
 }
 
+static void __arm_lpae_sync_pte(arm_lpae_iopte *ptep,
+				struct io_pgtable_cfg *cfg)
+{
+	dma_sync_single_for_device(cfg->iommu_dev, __arm_lpae_dma_addr(ptep),
+				   sizeof(*ptep), DMA_TO_DEVICE);
+}
+
 static void __arm_lpae_set_pte(arm_lpae_iopte *ptep, arm_lpae_iopte pte,
 			       struct io_pgtable_cfg *cfg)
 {
 	*ptep = pte;
 
-	if (!selftest_running)
-		dma_sync_single_for_device(cfg->iommu_dev,
-					   __arm_lpae_dma_addr(ptep),
-					   sizeof(pte), DMA_TO_DEVICE);
+	if (!(cfg->quirks & IO_PGTABLE_QUIRK_NO_DMA))
+		__arm_lpae_sync_pte(ptep, cfg);
 }
 
 static int __arm_lpae_unmap(struct arm_lpae_io_pgtable *data,
 			    unsigned long iova, size_t size, int lvl,
 			    arm_lpae_iopte *ptep);
 
+static void __arm_lpae_init_pte(struct arm_lpae_io_pgtable *data,
+				phys_addr_t paddr, arm_lpae_iopte prot,
+				int lvl, arm_lpae_iopte *ptep)
+{
+	arm_lpae_iopte pte = prot;
+
+	if (data->iop.cfg.quirks & IO_PGTABLE_QUIRK_ARM_NS)
+		pte |= ARM_LPAE_PTE_NS;
+
+	if (lvl == ARM_LPAE_MAX_LEVELS - 1)
+		pte |= ARM_LPAE_PTE_TYPE_PAGE;
+	else
+		pte |= ARM_LPAE_PTE_TYPE_BLOCK;
+
+	pte |= ARM_LPAE_PTE_AF | ARM_LPAE_PTE_SH_IS;
+	pte |= pfn_to_iopte(paddr >> data->pg_shift, data);
+
+	__arm_lpae_set_pte(ptep, pte, &data->iop.cfg);
+}
+
 static int arm_lpae_init_pte(struct arm_lpae_io_pgtable *data,
 			     unsigned long iova, phys_addr_t paddr,
 			     arm_lpae_iopte prot, int lvl,
 			     arm_lpae_iopte *ptep)
 {
-	arm_lpae_iopte pte = prot;
-	struct io_pgtable_cfg *cfg = &data->iop.cfg;
+	arm_lpae_iopte pte = *ptep;
 
-	if (iopte_leaf(*ptep, lvl)) {
+	if (iopte_leaf(pte, lvl)) {
 		/* We require an unmap first */
 		WARN_ON(!selftest_running);
 		return -EEXIST;
-	} else if (iopte_type(*ptep, lvl) == ARM_LPAE_PTE_TYPE_TABLE) {
+	} else if (iopte_type(pte, lvl) == ARM_LPAE_PTE_TYPE_TABLE) {
 		/*
 		 * We need to unmap and free the old table before
 		 * overwriting it with a block entry.
@@ -289,19 +316,40 @@ static int arm_lpae_init_pte(struct arm_lpae_io_pgtable *data,
 			return -EINVAL;
 	}
 
+	__arm_lpae_init_pte(data, paddr, prot, lvl, ptep);
+	return 0;
+}
+
+static arm_lpae_iopte arm_lpae_install_table(arm_lpae_iopte *table,
+					     arm_lpae_iopte *ptep,
+					     arm_lpae_iopte curr,
+					     struct io_pgtable_cfg *cfg)
+{
+	arm_lpae_iopte old, new;
+
+	new = __pa(table) | ARM_LPAE_PTE_TYPE_TABLE;
 	if (cfg->quirks & IO_PGTABLE_QUIRK_ARM_NS)
-		pte |= ARM_LPAE_PTE_NS;
+		new |= ARM_LPAE_PTE_NSTABLE;
 
-	if (lvl == ARM_LPAE_MAX_LEVELS - 1)
-		pte |= ARM_LPAE_PTE_TYPE_PAGE;
-	else
-		pte |= ARM_LPAE_PTE_TYPE_BLOCK;
+	/*
+	 * Ensure the table itself is visible before its PTE can be.
+	 * Whilst we could get away with cmpxchg64_release below, this
+	 * doesn't have any ordering semantics when !CONFIG_SMP.
+	 */
+	dma_wmb();
 
-	pte |= ARM_LPAE_PTE_AF | ARM_LPAE_PTE_SH_IS;
-	pte |= pfn_to_iopte(paddr >> data->pg_shift, data);
+	old = cmpxchg64_relaxed(ptep, curr, new);
 
-	__arm_lpae_set_pte(ptep, pte, cfg);
-	return 0;
+	if ((cfg->quirks & IO_PGTABLE_QUIRK_NO_DMA) ||
+	    (old & ARM_LPAE_PTE_SW_SYNC))
+		return old;
+
+	/* Even if it's not ours, there's no point waiting; just kick it */
+	__arm_lpae_sync_pte(ptep, cfg);
+	if (old == curr)
+		WRITE_ONCE(*ptep, new | ARM_LPAE_PTE_SW_SYNC);
+
+	return old;
 }
 
 static int __arm_lpae_map(struct arm_lpae_io_pgtable *data, unsigned long iova,
@@ -310,6 +358,7 @@ static int __arm_lpae_map(struct arm_lpae_io_pgtable *data, unsigned long iova,
 {
 	arm_lpae_iopte *cptep, pte;
 	size_t block_size = ARM_LPAE_BLOCK_SIZE(lvl, data);
+	size_t tblsz = ARM_LPAE_GRANULE(data);
 	struct io_pgtable_cfg *cfg = &data->iop.cfg;
 
 	/* Find our entry at the current level */
@@ -324,20 +373,23 @@ static int __arm_lpae_map(struct arm_lpae_io_pgtable *data, unsigned long iova,
 		return -EINVAL;
 
 	/* Grab a pointer to the next level */
-	pte = *ptep;
+	pte = READ_ONCE(*ptep);
 	if (!pte) {
-		cptep = __arm_lpae_alloc_pages(ARM_LPAE_GRANULE(data),
-					       GFP_ATOMIC, cfg);
+		cptep = __arm_lpae_alloc_pages(tblsz, GFP_ATOMIC, cfg);
 		if (!cptep)
 			return -ENOMEM;
 
-		pte = __pa(cptep) | ARM_LPAE_PTE_TYPE_TABLE;
-		if (cfg->quirks & IO_PGTABLE_QUIRK_ARM_NS)
-			pte |= ARM_LPAE_PTE_NSTABLE;
-		__arm_lpae_set_pte(ptep, pte, cfg);
-	} else if (!iopte_leaf(pte, lvl)) {
+		pte = arm_lpae_install_table(cptep, ptep, 0, cfg);
+		if (pte)
+			__arm_lpae_free_pages(cptep, tblsz, cfg);
+	} else if (!(cfg->quirks & IO_PGTABLE_QUIRK_NO_DMA) &&
+		   !(pte & ARM_LPAE_PTE_SW_SYNC)) {
+		__arm_lpae_sync_pte(ptep, cfg);
+	}
+
+	if (pte && !iopte_leaf(pte, lvl)) {
 		cptep = iopte_deref(pte, data);
-	} else {
+	} else if (pte) {
 		/* We require an unmap first */
 		WARN_ON(!selftest_running);
 		return -EEXIST;
@@ -400,6 +452,10 @@ static int arm_lpae_map(struct io_pgtable_ops *ops, unsigned long iova,
 	if (!(iommu_prot & (IOMMU_READ | IOMMU_WRITE)))
 		return 0;
 
+	if (WARN_ON(iova >= (1ULL << data->iop.cfg.ias) ||
+		    paddr >= (1ULL << data->iop.cfg.oas)))
+		return -ERANGE;
+
 	prot = arm_lpae_prot_to_pte(data, iommu_prot);
 	ret = __arm_lpae_map(data, iova, paddr, size, prot, lvl, ptep);
 	/*
@@ -452,40 +508,55 @@ static void arm_lpae_free_pgtable(struct io_pgtable *iop)
 
 static int arm_lpae_split_blk_unmap(struct arm_lpae_io_pgtable *data,
 				    unsigned long iova, size_t size,
-				    arm_lpae_iopte prot, int lvl,
-				    arm_lpae_iopte *ptep, size_t blk_size)
+				    arm_lpae_iopte blk_pte, int lvl,
+				    arm_lpae_iopte *ptep)
 {
-	unsigned long blk_start, blk_end;
+	struct io_pgtable_cfg *cfg = &data->iop.cfg;
+	arm_lpae_iopte pte, *tablep;
 	phys_addr_t blk_paddr;
-	arm_lpae_iopte table = 0;
+	size_t tablesz = ARM_LPAE_GRANULE(data);
+	size_t split_sz = ARM_LPAE_BLOCK_SIZE(lvl, data);
+	int i, unmap_idx = -1;
 
-	blk_start = iova & ~(blk_size - 1);
-	blk_end = blk_start + blk_size;
-	blk_paddr = iopte_to_pfn(*ptep, data) << data->pg_shift;
+	if (WARN_ON(lvl == ARM_LPAE_MAX_LEVELS))
+		return 0;
+
+	tablep = __arm_lpae_alloc_pages(tablesz, GFP_ATOMIC, cfg);
+	if (!tablep)
+		return 0; /* Bytes unmapped */
+
+	if (size == split_sz)
+		unmap_idx = ARM_LPAE_LVL_IDX(iova, lvl, data);
 
-	for (; blk_start < blk_end; blk_start += size, blk_paddr += size) {
-		arm_lpae_iopte *tablep;
+	blk_paddr = iopte_to_pfn(blk_pte, data) << data->pg_shift;
+	pte = iopte_prot(blk_pte);
 
+	for (i = 0; i < tablesz / sizeof(pte); i++, blk_paddr += split_sz) {
 		/* Unmap! */
-		if (blk_start == iova)
+		if (i == unmap_idx)
 			continue;
 
-		/* __arm_lpae_map expects a pointer to the start of the table */
-		tablep = &table - ARM_LPAE_LVL_IDX(blk_start, lvl, data);
-		if (__arm_lpae_map(data, blk_start, blk_paddr, size, prot, lvl,
-				   tablep) < 0) {
-			if (table) {
-				/* Free the table we allocated */
-				tablep = iopte_deref(table, data);
-				__arm_lpae_free_pgtable(data, lvl + 1, tablep);
-			}
-			return 0; /* Bytes unmapped */
-		}
+		__arm_lpae_init_pte(data, blk_paddr, pte, lvl, &tablep[i]);
+	}
+
+	pte = arm_lpae_install_table(tablep, ptep, blk_pte, cfg);
+	if (pte != blk_pte) {
+		__arm_lpae_free_pages(tablep, tablesz, cfg);
+		/*
+		 * We may race against someone unmapping another part of this
+		 * block, but anything else is invalid. We can't misinterpret
+		 * a page entry here since we're never at the last level.
+		 */
+		if (iopte_type(pte, lvl - 1) != ARM_LPAE_PTE_TYPE_TABLE)
+			return 0;
+
+		tablep = iopte_deref(pte, data);
 	}
 
-	__arm_lpae_set_pte(ptep, table, &data->iop.cfg);
-	iova &= ~(blk_size - 1);
-	io_pgtable_tlb_add_flush(&data->iop, iova, blk_size, blk_size, true);
+	if (unmap_idx < 0)
+		return __arm_lpae_unmap(data, iova, size, lvl, tablep);
+
+	io_pgtable_tlb_add_flush(&data->iop, iova, size, size, true);
 	return size;
 }
 
@@ -495,19 +566,18 @@ static int __arm_lpae_unmap(struct arm_lpae_io_pgtable *data,
 {
 	arm_lpae_iopte pte;
 	struct io_pgtable *iop = &data->iop;
-	size_t blk_size = ARM_LPAE_BLOCK_SIZE(lvl, data);
 
 	/* Something went horribly wrong and we ran out of page table */
 	if (WARN_ON(lvl == ARM_LPAE_MAX_LEVELS))
 		return 0;
 
 	ptep += ARM_LPAE_LVL_IDX(iova, lvl, data);
-	pte = *ptep;
+	pte = READ_ONCE(*ptep);
 	if (WARN_ON(!pte))
 		return 0;
 
 	/* If the size matches this level, we're in the right place */
-	if (size == blk_size) {
+	if (size == ARM_LPAE_BLOCK_SIZE(lvl, data)) {
 		__arm_lpae_set_pte(ptep, 0, &iop->cfg);
 
 		if (!iopte_leaf(pte, lvl)) {
@@ -527,9 +597,8 @@ static int __arm_lpae_unmap(struct arm_lpae_io_pgtable *data,
 		 * Insert a table at the next level to map the old region,
 		 * minus the part we want to unmap
 		 */
-		return arm_lpae_split_blk_unmap(data, iova, size,
-						iopte_prot(pte), lvl, ptep,
-						blk_size);
+		return arm_lpae_split_blk_unmap(data, iova, size, pte,
+						lvl + 1, ptep);
 	}
 
 	/* Keep on walkin' */
@@ -545,6 +614,9 @@ static int arm_lpae_unmap(struct io_pgtable_ops *ops, unsigned long iova,
 	arm_lpae_iopte *ptep = data->pgd;
 	int lvl = ARM_LPAE_START_LVL(data);
 
+	if (WARN_ON(iova >= (1ULL << data->iop.cfg.ias)))
+		return 0;
+
 	unmapped = __arm_lpae_unmap(data, iova, size, lvl, ptep);
 	if (unmapped)
 		io_pgtable_tlb_sync(&data->iop);
@@ -565,7 +637,8 @@ static phys_addr_t arm_lpae_iova_to_phys(struct io_pgtable_ops *ops,
 			return 0;
 
 		/* Grab the IOPTE we're interested in */
-		pte = *(ptep + ARM_LPAE_LVL_IDX(iova, lvl, data));
+		ptep += ARM_LPAE_LVL_IDX(iova, lvl, data);
+		pte = READ_ONCE(*ptep);
 
 		/* Valid entry? */
 		if (!pte)
@@ -673,7 +746,7 @@ arm_64_lpae_alloc_pgtable_s1(struct io_pgtable_cfg *cfg, void *cookie)
 	u64 reg;
 	struct arm_lpae_io_pgtable *data;
 
-	if (cfg->quirks & ~IO_PGTABLE_QUIRK_ARM_NS)
+	if (cfg->quirks & ~(IO_PGTABLE_QUIRK_ARM_NS | IO_PGTABLE_QUIRK_NO_DMA))
 		return NULL;
 
 	data = arm_lpae_alloc_pgtable(cfg);
@@ -762,7 +835,7 @@ arm_64_lpae_alloc_pgtable_s2(struct io_pgtable_cfg *cfg, void *cookie)
 	struct arm_lpae_io_pgtable *data;
 
 	/* The NS quirk doesn't apply at stage 2 */
-	if (cfg->quirks)
+	if (cfg->quirks & ~IO_PGTABLE_QUIRK_NO_DMA)
 		return NULL;
 
 	data = arm_lpae_alloc_pgtable(cfg);
@@ -1066,6 +1139,7 @@ static int __init arm_lpae_do_selftests(void)
 	struct io_pgtable_cfg cfg = {
 		.tlb = &dummy_tlb_ops,
 		.oas = 48,
+		.quirks = IO_PGTABLE_QUIRK_NO_DMA,
 	};
 
 	for (i = 0; i < ARRAY_SIZE(pgsize); ++i) {
diff --git a/drivers/iommu/io-pgtable.h b/drivers/iommu/io-pgtable.h
index 969d82cc92ca..a3e667077b14 100644
--- a/drivers/iommu/io-pgtable.h
+++ b/drivers/iommu/io-pgtable.h
@@ -65,11 +65,17 @@ struct io_pgtable_cfg {
 	 *	PTEs, for Mediatek IOMMUs which treat it as a 33rd address bit
 	 *	when the SoC is in "4GB mode" and they can only access the high
 	 *	remap of DRAM (0x1_00000000 to 0x1_ffffffff).
+	 *
+	 * IO_PGTABLE_QUIRK_NO_DMA: Guarantees that the tables will only ever
+	 *	be accessed by a fully cache-coherent IOMMU or CPU (e.g. for a
+	 *	software-emulated IOMMU), such that pagetable updates need not
+	 *	be treated as explicit DMA data.
 	 */
 	#define IO_PGTABLE_QUIRK_ARM_NS		BIT(0)
 	#define IO_PGTABLE_QUIRK_NO_PERMS	BIT(1)
 	#define IO_PGTABLE_QUIRK_TLBI_ON_MAP	BIT(2)
 	#define IO_PGTABLE_QUIRK_ARM_MTK_4GB	BIT(3)
+	#define IO_PGTABLE_QUIRK_NO_DMA		BIT(4)
 	unsigned long			quirks;
 	unsigned long			pgsize_bitmap;
 	unsigned int			ias;
@@ -152,14 +158,12 @@ void free_io_pgtable_ops(struct io_pgtable_ops *ops);
  * @fmt:    The page table format.
  * @cookie: An opaque token provided by the IOMMU driver and passed back to
  *          any callback routines.
- * @tlb_sync_pending: Private flag for optimising out redundant syncs.
  * @cfg:    A copy of the page table configuration.
  * @ops:    The page table operations in use for this set of page tables.
  */
 struct io_pgtable {
 	enum io_pgtable_fmt	fmt;
 	void			*cookie;
-	bool			tlb_sync_pending;
 	struct io_pgtable_cfg	cfg;
 	struct io_pgtable_ops	ops;
 };
@@ -169,22 +173,17 @@ struct io_pgtable {
 static inline void io_pgtable_tlb_flush_all(struct io_pgtable *iop)
 {
 	iop->cfg.tlb->tlb_flush_all(iop->cookie);
-	iop->tlb_sync_pending = true;
 }
 
 static inline void io_pgtable_tlb_add_flush(struct io_pgtable *iop,
 		unsigned long iova, size_t size, size_t granule, bool leaf)
 {
 	iop->cfg.tlb->tlb_add_flush(iova, size, granule, leaf, iop->cookie);
-	iop->tlb_sync_pending = true;
 }
 
 static inline void io_pgtable_tlb_sync(struct io_pgtable *iop)
 {
-	if (iop->tlb_sync_pending) {
-		iop->cfg.tlb->tlb_sync(iop->cookie);
-		iop->tlb_sync_pending = false;
-	}
+	iop->cfg.tlb->tlb_sync(iop->cookie);
 }
 
 /**
diff --git a/drivers/iommu/iommu.c b/drivers/iommu/iommu.c
index cf7ca7e70777..3f6ea160afed 100644
--- a/drivers/iommu/iommu.c
+++ b/drivers/iommu/iommu.c
@@ -915,13 +915,7 @@ static int get_pci_alias_or_group(struct pci_dev *pdev, u16 alias, void *opaque)
  */
 struct iommu_group *generic_device_group(struct device *dev)
 {
-	struct iommu_group *group;
-
-	group = iommu_group_alloc();
-	if (IS_ERR(group))
-		return NULL;
-
-	return group;
+	return iommu_group_alloc();
 }
 
 /*
@@ -988,11 +982,7 @@ struct iommu_group *pci_device_group(struct device *dev)
 		return group;
 
 	/* No shared group found, allocate new */
-	group = iommu_group_alloc();
-	if (IS_ERR(group))
-		return NULL;
-
-	return group;
+	return iommu_group_alloc();
 }
 
 /**
@@ -1020,6 +1010,9 @@ struct iommu_group *iommu_group_get_for_dev(struct device *dev)
 	if (ops && ops->device_group)
 		group = ops->device_group(dev);
 
+	if (WARN_ON_ONCE(group == NULL))
+		return ERR_PTR(-EINVAL);
+
 	if (IS_ERR(group))
 		return group;
 
diff --git a/drivers/iommu/iova.c b/drivers/iommu/iova.c
index 5c88ba70e4e0..246f14c83944 100644
--- a/drivers/iommu/iova.c
+++ b/drivers/iommu/iova.c
@@ -22,6 +22,7 @@
 #include <linux/slab.h>
 #include <linux/smp.h>
 #include <linux/bitops.h>
+#include <linux/cpu.h>
 
 static bool iova_rcache_insert(struct iova_domain *iovad,
 			       unsigned long pfn,
@@ -48,7 +49,7 @@ init_iova_domain(struct iova_domain *iovad, unsigned long granule,
 	iovad->cached32_node = NULL;
 	iovad->granule = granule;
 	iovad->start_pfn = start_pfn;
-	iovad->dma_32bit_pfn = pfn_32bit;
+	iovad->dma_32bit_pfn = pfn_32bit + 1;
 	init_iova_rcaches(iovad);
 }
 EXPORT_SYMBOL_GPL(init_iova_domain);
@@ -63,7 +64,7 @@ __get_cached_rbnode(struct iova_domain *iovad, unsigned long *limit_pfn)
 		struct rb_node *prev_node = rb_prev(iovad->cached32_node);
 		struct iova *curr_iova =
 			rb_entry(iovad->cached32_node, struct iova, node);
-		*limit_pfn = curr_iova->pfn_lo - 1;
+		*limit_pfn = curr_iova->pfn_lo;
 		return prev_node;
 	}
 }
@@ -135,7 +136,7 @@ iova_insert_rbtree(struct rb_root *root, struct iova *iova,
 static unsigned int
 iova_get_pad_size(unsigned int size, unsigned int limit_pfn)
 {
-	return (limit_pfn + 1 - size) & (__roundup_pow_of_two(size) - 1);
+	return (limit_pfn - size) & (__roundup_pow_of_two(size) - 1);
 }
 
 static int __alloc_and_insert_iova_range(struct iova_domain *iovad,
@@ -155,18 +156,15 @@ static int __alloc_and_insert_iova_range(struct iova_domain *iovad,
 	while (curr) {
 		struct iova *curr_iova = rb_entry(curr, struct iova, node);
 
-		if (limit_pfn < curr_iova->pfn_lo)
+		if (limit_pfn <= curr_iova->pfn_lo) {
 			goto move_left;
-		else if (limit_pfn < curr_iova->pfn_hi)
-			goto adjust_limit_pfn;
-		else {
+		} else if (limit_pfn > curr_iova->pfn_hi) {
 			if (size_aligned)
 				pad_size = iova_get_pad_size(size, limit_pfn);
-			if ((curr_iova->pfn_hi + size + pad_size) <= limit_pfn)
+			if ((curr_iova->pfn_hi + size + pad_size) < limit_pfn)
 				break;	/* found a free slot */
 		}
-adjust_limit_pfn:
-		limit_pfn = curr_iova->pfn_lo ? (curr_iova->pfn_lo - 1) : 0;
+		limit_pfn = curr_iova->pfn_lo;
 move_left:
 		prev = curr;
 		curr = rb_prev(curr);
@@ -182,7 +180,7 @@ move_left:
 	}
 
 	/* pfn_lo will point to size aligned address if size_aligned is set */
-	new->pfn_lo = limit_pfn - (size + pad_size) + 1;
+	new->pfn_lo = limit_pfn - (size + pad_size);
 	new->pfn_hi = new->pfn_lo + size - 1;
 
 	/* If we have 'prev', it's a valid place to start the insertion. */
@@ -269,7 +267,7 @@ alloc_iova(struct iova_domain *iovad, unsigned long size,
 	if (!new_iova)
 		return NULL;
 
-	ret = __alloc_and_insert_iova_range(iovad, size, limit_pfn,
+	ret = __alloc_and_insert_iova_range(iovad, size, limit_pfn + 1,
 			new_iova, size_aligned);
 
 	if (ret) {
@@ -398,10 +396,8 @@ retry:
 
 		/* Try replenishing IOVAs by flushing rcache. */
 		flushed_rcache = true;
-		preempt_disable();
 		for_each_online_cpu(cpu)
 			free_cpu_cached_iovas(cpu, iovad);
-		preempt_enable();
 		goto retry;
 	}
 
@@ -729,7 +725,7 @@ static bool __iova_rcache_insert(struct iova_domain *iovad,
 	bool can_insert = false;
 	unsigned long flags;
 
-	cpu_rcache = get_cpu_ptr(rcache->cpu_rcaches);
+	cpu_rcache = raw_cpu_ptr(rcache->cpu_rcaches);
 	spin_lock_irqsave(&cpu_rcache->lock, flags);
 
 	if (!iova_magazine_full(cpu_rcache->loaded)) {
@@ -759,7 +755,6 @@ static bool __iova_rcache_insert(struct iova_domain *iovad,
 		iova_magazine_push(cpu_rcache->loaded, iova_pfn);
 
 	spin_unlock_irqrestore(&cpu_rcache->lock, flags);
-	put_cpu_ptr(rcache->cpu_rcaches);
 
 	if (mag_to_free) {
 		iova_magazine_free_pfns(mag_to_free, iovad);
@@ -793,7 +788,7 @@ static unsigned long __iova_rcache_get(struct iova_rcache *rcache,
 	bool has_pfn = false;
 	unsigned long flags;
 
-	cpu_rcache = get_cpu_ptr(rcache->cpu_rcaches);
+	cpu_rcache = raw_cpu_ptr(rcache->cpu_rcaches);
 	spin_lock_irqsave(&cpu_rcache->lock, flags);
 
 	if (!iova_magazine_empty(cpu_rcache->loaded)) {
@@ -815,7 +810,6 @@ static unsigned long __iova_rcache_get(struct iova_rcache *rcache,
 		iova_pfn = iova_magazine_pop(cpu_rcache->loaded, limit_pfn);
 
 	spin_unlock_irqrestore(&cpu_rcache->lock, flags);
-	put_cpu_ptr(rcache->cpu_rcaches);
 
 	return iova_pfn;
 }
diff --git a/drivers/iommu/ipmmu-vmsa.c b/drivers/iommu/ipmmu-vmsa.c
index b7e14ee863f9..2a38aa15be17 100644
--- a/drivers/iommu/ipmmu-vmsa.c
+++ b/drivers/iommu/ipmmu-vmsa.c
@@ -8,7 +8,9 @@
  * the Free Software Foundation; version 2 of the License.
  */
 
+#include <linux/bitmap.h>
 #include <linux/delay.h>
+#include <linux/dma-iommu.h>
 #include <linux/dma-mapping.h>
 #include <linux/err.h>
 #include <linux/export.h>
@@ -21,17 +23,24 @@
 #include <linux/sizes.h>
 #include <linux/slab.h>
 
+#if defined(CONFIG_ARM) && !defined(CONFIG_IOMMU_DMA)
 #include <asm/dma-iommu.h>
 #include <asm/pgalloc.h>
+#endif
 
 #include "io-pgtable.h"
 
+#define IPMMU_CTX_MAX 1
+
 struct ipmmu_vmsa_device {
 	struct device *dev;
 	void __iomem *base;
 	struct list_head list;
 
 	unsigned int num_utlbs;
+	spinlock_t lock;			/* Protects ctx and domains[] */
+	DECLARE_BITMAP(ctx, IPMMU_CTX_MAX);
+	struct ipmmu_vmsa_domain *domains[IPMMU_CTX_MAX];
 
 	struct dma_iommu_mapping *mapping;
 };
@@ -47,10 +56,12 @@ struct ipmmu_vmsa_domain {
 	spinlock_t lock;			/* Protects mappings */
 };
 
-struct ipmmu_vmsa_archdata {
+struct ipmmu_vmsa_iommu_priv {
 	struct ipmmu_vmsa_device *mmu;
 	unsigned int *utlbs;
 	unsigned int num_utlbs;
+	struct device *dev;
+	struct list_head list;
 };
 
 static DEFINE_SPINLOCK(ipmmu_devices_lock);
@@ -61,6 +72,24 @@ static struct ipmmu_vmsa_domain *to_vmsa_domain(struct iommu_domain *dom)
 	return container_of(dom, struct ipmmu_vmsa_domain, io_domain);
 }
 
+
+static struct ipmmu_vmsa_iommu_priv *to_priv(struct device *dev)
+{
+#if defined(CONFIG_ARM)
+	return dev->archdata.iommu;
+#else
+	return dev->iommu_fwspec->iommu_priv;
+#endif
+}
+static void set_priv(struct device *dev, struct ipmmu_vmsa_iommu_priv *p)
+{
+#if defined(CONFIG_ARM)
+	dev->archdata.iommu = p;
+#else
+	dev->iommu_fwspec->iommu_priv = p;
+#endif
+}
+
 #define TLB_LOOP_TIMEOUT		100	/* 100us */
 
 /* -----------------------------------------------------------------------------
@@ -293,9 +322,29 @@ static struct iommu_gather_ops ipmmu_gather_ops = {
  * Domain/Context Management
  */
 
+static int ipmmu_domain_allocate_context(struct ipmmu_vmsa_device *mmu,
+					 struct ipmmu_vmsa_domain *domain)
+{
+	unsigned long flags;
+	int ret;
+
+	spin_lock_irqsave(&mmu->lock, flags);
+
+	ret = find_first_zero_bit(mmu->ctx, IPMMU_CTX_MAX);
+	if (ret != IPMMU_CTX_MAX) {
+		mmu->domains[ret] = domain;
+		set_bit(ret, mmu->ctx);
+	}
+
+	spin_unlock_irqrestore(&mmu->lock, flags);
+
+	return ret;
+}
+
 static int ipmmu_domain_init_context(struct ipmmu_vmsa_domain *domain)
 {
 	u64 ttbr;
+	int ret;
 
 	/*
 	 * Allocate the page table operations.
@@ -309,7 +358,7 @@ static int ipmmu_domain_init_context(struct ipmmu_vmsa_domain *domain)
 	 * non-secure mode.
 	 */
 	domain->cfg.quirks = IO_PGTABLE_QUIRK_ARM_NS;
-	domain->cfg.pgsize_bitmap = SZ_1G | SZ_2M | SZ_4K,
+	domain->cfg.pgsize_bitmap = SZ_1G | SZ_2M | SZ_4K;
 	domain->cfg.ias = 32;
 	domain->cfg.oas = 40;
 	domain->cfg.tlb = &ipmmu_gather_ops;
@@ -327,10 +376,15 @@ static int ipmmu_domain_init_context(struct ipmmu_vmsa_domain *domain)
 		return -EINVAL;
 
 	/*
-	 * TODO: When adding support for multiple contexts, find an unused
-	 * context.
+	 * Find an unused context.
 	 */
-	domain->context_id = 0;
+	ret = ipmmu_domain_allocate_context(domain->mmu, domain);
+	if (ret == IPMMU_CTX_MAX) {
+		free_io_pgtable_ops(domain->iop);
+		return -EBUSY;
+	}
+
+	domain->context_id = ret;
 
 	/* TTBR0 */
 	ttbr = domain->cfg.arm_lpae_s1_cfg.ttbr[0];
@@ -372,6 +426,19 @@ static int ipmmu_domain_init_context(struct ipmmu_vmsa_domain *domain)
 	return 0;
 }
 
+static void ipmmu_domain_free_context(struct ipmmu_vmsa_device *mmu,
+				      unsigned int context_id)
+{
+	unsigned long flags;
+
+	spin_lock_irqsave(&mmu->lock, flags);
+
+	clear_bit(context_id, mmu->ctx);
+	mmu->domains[context_id] = NULL;
+
+	spin_unlock_irqrestore(&mmu->lock, flags);
+}
+
 static void ipmmu_domain_destroy_context(struct ipmmu_vmsa_domain *domain)
 {
 	/*
@@ -382,6 +449,7 @@ static void ipmmu_domain_destroy_context(struct ipmmu_vmsa_domain *domain)
 	 */
 	ipmmu_ctx_write(domain, IMCTR, IMCTR_FLUSH);
 	ipmmu_tlb_sync(domain);
+	ipmmu_domain_free_context(domain->mmu, domain->context_id);
 }
 
 /* -----------------------------------------------------------------------------
@@ -439,29 +507,35 @@ static irqreturn_t ipmmu_domain_irq(struct ipmmu_vmsa_domain *domain)
 static irqreturn_t ipmmu_irq(int irq, void *dev)
 {
 	struct ipmmu_vmsa_device *mmu = dev;
-	struct iommu_domain *io_domain;
-	struct ipmmu_vmsa_domain *domain;
+	irqreturn_t status = IRQ_NONE;
+	unsigned int i;
+	unsigned long flags;
 
-	if (!mmu->mapping)
-		return IRQ_NONE;
+	spin_lock_irqsave(&mmu->lock, flags);
+
+	/*
+	 * Check interrupts for all active contexts.
+	 */
+	for (i = 0; i < IPMMU_CTX_MAX; i++) {
+		if (!mmu->domains[i])
+			continue;
+		if (ipmmu_domain_irq(mmu->domains[i]) == IRQ_HANDLED)
+			status = IRQ_HANDLED;
+	}
 
-	io_domain = mmu->mapping->domain;
-	domain = to_vmsa_domain(io_domain);
+	spin_unlock_irqrestore(&mmu->lock, flags);
 
-	return ipmmu_domain_irq(domain);
+	return status;
 }
 
 /* -----------------------------------------------------------------------------
  * IOMMU Operations
  */
 
-static struct iommu_domain *ipmmu_domain_alloc(unsigned type)
+static struct iommu_domain *__ipmmu_domain_alloc(unsigned type)
 {
 	struct ipmmu_vmsa_domain *domain;
 
-	if (type != IOMMU_DOMAIN_UNMANAGED)
-		return NULL;
-
 	domain = kzalloc(sizeof(*domain), GFP_KERNEL);
 	if (!domain)
 		return NULL;
@@ -487,8 +561,8 @@ static void ipmmu_domain_free(struct iommu_domain *io_domain)
 static int ipmmu_attach_device(struct iommu_domain *io_domain,
 			       struct device *dev)
 {
-	struct ipmmu_vmsa_archdata *archdata = dev->archdata.iommu;
-	struct ipmmu_vmsa_device *mmu = archdata->mmu;
+	struct ipmmu_vmsa_iommu_priv *priv = to_priv(dev);
+	struct ipmmu_vmsa_device *mmu = priv->mmu;
 	struct ipmmu_vmsa_domain *domain = to_vmsa_domain(io_domain);
 	unsigned long flags;
 	unsigned int i;
@@ -513,15 +587,16 @@ static int ipmmu_attach_device(struct iommu_domain *io_domain,
 		dev_err(dev, "Can't attach IPMMU %s to domain on IPMMU %s\n",
 			dev_name(mmu->dev), dev_name(domain->mmu->dev));
 		ret = -EINVAL;
-	}
+	} else
+		dev_info(dev, "Reusing IPMMU context %u\n", domain->context_id);
 
 	spin_unlock_irqrestore(&domain->lock, flags);
 
 	if (ret < 0)
 		return ret;
 
-	for (i = 0; i < archdata->num_utlbs; ++i)
-		ipmmu_utlb_enable(domain, archdata->utlbs[i]);
+	for (i = 0; i < priv->num_utlbs; ++i)
+		ipmmu_utlb_enable(domain, priv->utlbs[i]);
 
 	return 0;
 }
@@ -529,12 +604,12 @@ static int ipmmu_attach_device(struct iommu_domain *io_domain,
 static void ipmmu_detach_device(struct iommu_domain *io_domain,
 				struct device *dev)
 {
-	struct ipmmu_vmsa_archdata *archdata = dev->archdata.iommu;
+	struct ipmmu_vmsa_iommu_priv *priv = to_priv(dev);
 	struct ipmmu_vmsa_domain *domain = to_vmsa_domain(io_domain);
 	unsigned int i;
 
-	for (i = 0; i < archdata->num_utlbs; ++i)
-		ipmmu_utlb_disable(domain, archdata->utlbs[i]);
+	for (i = 0; i < priv->num_utlbs; ++i)
+		ipmmu_utlb_disable(domain, priv->utlbs[i]);
 
 	/*
 	 * TODO: Optimize by disabling the context when no device is attached.
@@ -595,22 +670,15 @@ static int ipmmu_find_utlbs(struct ipmmu_vmsa_device *mmu, struct device *dev,
 	return 0;
 }
 
-static int ipmmu_add_device(struct device *dev)
+static int ipmmu_init_platform_device(struct device *dev)
 {
-	struct ipmmu_vmsa_archdata *archdata;
+	struct ipmmu_vmsa_iommu_priv *priv;
 	struct ipmmu_vmsa_device *mmu;
-	struct iommu_group *group = NULL;
 	unsigned int *utlbs;
 	unsigned int i;
 	int num_utlbs;
 	int ret = -ENODEV;
 
-	if (dev->archdata.iommu) {
-		dev_warn(dev, "IOMMU driver already assigned to device %s\n",
-			 dev_name(dev));
-		return -EINVAL;
-	}
-
 	/* Find the master corresponding to the device. */
 
 	num_utlbs = of_count_phandle_with_args(dev->of_node, "iommus",
@@ -647,6 +715,46 @@ static int ipmmu_add_device(struct device *dev)
 		}
 	}
 
+	priv = kzalloc(sizeof(*priv), GFP_KERNEL);
+	if (!priv) {
+		ret = -ENOMEM;
+		goto error;
+	}
+
+	priv->mmu = mmu;
+	priv->utlbs = utlbs;
+	priv->num_utlbs = num_utlbs;
+	priv->dev = dev;
+	set_priv(dev, priv);
+	return 0;
+
+error:
+	kfree(utlbs);
+	return ret;
+}
+
+#if defined(CONFIG_ARM) && !defined(CONFIG_IOMMU_DMA)
+
+static struct iommu_domain *ipmmu_domain_alloc(unsigned type)
+{
+	if (type != IOMMU_DOMAIN_UNMANAGED)
+		return NULL;
+
+	return __ipmmu_domain_alloc(type);
+}
+
+static int ipmmu_add_device(struct device *dev)
+{
+	struct ipmmu_vmsa_device *mmu = NULL;
+	struct iommu_group *group;
+	int ret;
+
+	if (to_priv(dev)) {
+		dev_warn(dev, "IOMMU driver already assigned to device %s\n",
+			 dev_name(dev));
+		return -EINVAL;
+	}
+
 	/* Create a device group and add the device to it. */
 	group = iommu_group_alloc();
 	if (IS_ERR(group)) {
@@ -664,16 +772,9 @@ static int ipmmu_add_device(struct device *dev)
 		goto error;
 	}
 
-	archdata = kzalloc(sizeof(*archdata), GFP_KERNEL);
-	if (!archdata) {
-		ret = -ENOMEM;
+	ret = ipmmu_init_platform_device(dev);
+	if (ret < 0)
 		goto error;
-	}
-
-	archdata->mmu = mmu;
-	archdata->utlbs = utlbs;
-	archdata->num_utlbs = num_utlbs;
-	dev->archdata.iommu = archdata;
 
 	/*
 	 * Create the ARM mapping, used by the ARM DMA mapping core to allocate
@@ -684,6 +785,7 @@ static int ipmmu_add_device(struct device *dev)
 	 * - Make the mapping size configurable ? We currently use a 2GB mapping
 	 *   at a 1GB offset to ensure that NULL VAs will fault.
 	 */
+	mmu = to_priv(dev)->mmu;
 	if (!mmu->mapping) {
 		struct dma_iommu_mapping *mapping;
 
@@ -708,30 +810,30 @@ static int ipmmu_add_device(struct device *dev)
 	return 0;
 
 error:
-	arm_iommu_release_mapping(mmu->mapping);
-
-	kfree(dev->archdata.iommu);
-	kfree(utlbs);
-
-	dev->archdata.iommu = NULL;
+	if (mmu)
+		arm_iommu_release_mapping(mmu->mapping);
 
 	if (!IS_ERR_OR_NULL(group))
 		iommu_group_remove_device(dev);
 
+	kfree(to_priv(dev)->utlbs);
+	kfree(to_priv(dev));
+	set_priv(dev, NULL);
+
 	return ret;
 }
 
 static void ipmmu_remove_device(struct device *dev)
 {
-	struct ipmmu_vmsa_archdata *archdata = dev->archdata.iommu;
+	struct ipmmu_vmsa_iommu_priv *priv = to_priv(dev);
 
 	arm_iommu_detach_device(dev);
 	iommu_group_remove_device(dev);
 
-	kfree(archdata->utlbs);
-	kfree(archdata);
+	kfree(priv->utlbs);
+	kfree(priv);
 
-	dev->archdata.iommu = NULL;
+	set_priv(dev, NULL);
 }
 
 static const struct iommu_ops ipmmu_ops = {
@@ -748,6 +850,144 @@ static const struct iommu_ops ipmmu_ops = {
 	.pgsize_bitmap = SZ_1G | SZ_2M | SZ_4K,
 };
 
+#endif /* !CONFIG_ARM && CONFIG_IOMMU_DMA */
+
+#ifdef CONFIG_IOMMU_DMA
+
+static DEFINE_SPINLOCK(ipmmu_slave_devices_lock);
+static LIST_HEAD(ipmmu_slave_devices);
+
+static struct iommu_domain *ipmmu_domain_alloc_dma(unsigned type)
+{
+	struct iommu_domain *io_domain = NULL;
+
+	switch (type) {
+	case IOMMU_DOMAIN_UNMANAGED:
+		io_domain = __ipmmu_domain_alloc(type);
+		break;
+
+	case IOMMU_DOMAIN_DMA:
+		io_domain = __ipmmu_domain_alloc(type);
+		if (io_domain)
+			iommu_get_dma_cookie(io_domain);
+		break;
+	}
+
+	return io_domain;
+}
+
+static void ipmmu_domain_free_dma(struct iommu_domain *io_domain)
+{
+	switch (io_domain->type) {
+	case IOMMU_DOMAIN_DMA:
+		iommu_put_dma_cookie(io_domain);
+		/* fall-through */
+	default:
+		ipmmu_domain_free(io_domain);
+		break;
+	}
+}
+
+static int ipmmu_add_device_dma(struct device *dev)
+{
+	struct iommu_fwspec *fwspec = dev->iommu_fwspec;
+	struct iommu_group *group;
+
+	/*
+	 * Only let through devices that have been verified in xlate()
+	 * We may get called with dev->iommu_fwspec set to NULL.
+	 */
+	if (!fwspec || !fwspec->iommu_priv)
+		return -ENODEV;
+
+	group = iommu_group_get_for_dev(dev);
+	if (IS_ERR(group))
+		return PTR_ERR(group);
+
+	spin_lock(&ipmmu_slave_devices_lock);
+	list_add(&to_priv(dev)->list, &ipmmu_slave_devices);
+	spin_unlock(&ipmmu_slave_devices_lock);
+	return 0;
+}
+
+static void ipmmu_remove_device_dma(struct device *dev)
+{
+	struct ipmmu_vmsa_iommu_priv *priv = to_priv(dev);
+
+	spin_lock(&ipmmu_slave_devices_lock);
+	list_del(&priv->list);
+	spin_unlock(&ipmmu_slave_devices_lock);
+
+	iommu_group_remove_device(dev);
+}
+
+static struct device *ipmmu_find_sibling_device(struct device *dev)
+{
+	struct ipmmu_vmsa_iommu_priv *priv = to_priv(dev);
+	struct ipmmu_vmsa_iommu_priv *sibling_priv = NULL;
+	bool found = false;
+
+	spin_lock(&ipmmu_slave_devices_lock);
+
+	list_for_each_entry(sibling_priv, &ipmmu_slave_devices, list) {
+		if (priv == sibling_priv)
+			continue;
+		if (sibling_priv->mmu == priv->mmu) {
+			found = true;
+			break;
+		}
+	}
+
+	spin_unlock(&ipmmu_slave_devices_lock);
+
+	return found ? sibling_priv->dev : NULL;
+}
+
+static struct iommu_group *ipmmu_find_group_dma(struct device *dev)
+{
+	struct iommu_group *group;
+	struct device *sibling;
+
+	sibling = ipmmu_find_sibling_device(dev);
+	if (sibling)
+		group = iommu_group_get(sibling);
+	if (!sibling || IS_ERR(group))
+		group = generic_device_group(dev);
+
+	return group;
+}
+
+static int ipmmu_of_xlate_dma(struct device *dev,
+			      struct of_phandle_args *spec)
+{
+	/* If the IPMMU device is disabled in DT then return error
+	 * to make sure the of_iommu code does not install ops
+	 * even though the iommu device is disabled
+	 */
+	if (!of_device_is_available(spec->np))
+		return -ENODEV;
+
+	return ipmmu_init_platform_device(dev);
+}
+
+static const struct iommu_ops ipmmu_ops = {
+	.domain_alloc = ipmmu_domain_alloc_dma,
+	.domain_free = ipmmu_domain_free_dma,
+	.attach_dev = ipmmu_attach_device,
+	.detach_dev = ipmmu_detach_device,
+	.map = ipmmu_map,
+	.unmap = ipmmu_unmap,
+	.map_sg = default_iommu_map_sg,
+	.iova_to_phys = ipmmu_iova_to_phys,
+	.add_device = ipmmu_add_device_dma,
+	.remove_device = ipmmu_remove_device_dma,
+	.device_group = ipmmu_find_group_dma,
+	.pgsize_bitmap = SZ_1G | SZ_2M | SZ_4K,
+	.of_xlate = ipmmu_of_xlate_dma,
+};
+
+#endif /* CONFIG_IOMMU_DMA */
+
 /* -----------------------------------------------------------------------------
  * Probe/remove and init
  */
@@ -768,11 +1008,6 @@ static int ipmmu_probe(struct platform_device *pdev)
 	int irq;
 	int ret;
 
-	if (!IS_ENABLED(CONFIG_OF) && !pdev->dev.platform_data) {
-		dev_err(&pdev->dev, "missing platform data\n");
-		return -EINVAL;
-	}
-
 	mmu = devm_kzalloc(&pdev->dev, sizeof(*mmu), GFP_KERNEL);
 	if (!mmu) {
 		dev_err(&pdev->dev, "cannot allocate device data\n");
@@ -781,6 +1016,8 @@ static int ipmmu_probe(struct platform_device *pdev)
 
 	mmu->dev = &pdev->dev;
 	mmu->num_utlbs = 32;
+	spin_lock_init(&mmu->lock);
+	bitmap_zero(mmu->ctx, IPMMU_CTX_MAX);
 
 	/* Map I/O memory and request IRQ. */
 	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
@@ -840,7 +1077,9 @@ static int ipmmu_remove(struct platform_device *pdev)
 	list_del(&mmu->list);
 	spin_unlock(&ipmmu_devices_lock);
 
+#if defined(CONFIG_ARM) && !defined(CONFIG_IOMMU_DMA)
 	arm_iommu_release_mapping(mmu->mapping);
+#endif
 
 	ipmmu_device_reset(mmu);
 
diff --git a/drivers/iommu/mtk_iommu.c b/drivers/iommu/mtk_iommu.c
index 5d14cd15198d..91c6d367ab35 100644
--- a/drivers/iommu/mtk_iommu.c
+++ b/drivers/iommu/mtk_iommu.c
@@ -129,6 +129,7 @@ static void mtk_iommu_tlb_add_flush_nosync(unsigned long iova, size_t size,
 	writel_relaxed(iova, data->base + REG_MMU_INVLD_START_A);
 	writel_relaxed(iova + size - 1, data->base + REG_MMU_INVLD_END_A);
 	writel_relaxed(F_MMU_INV_RANGE, data->base + REG_MMU_INVALIDATE);
+	data->tlb_flush_active = true;
 }
 
 static void mtk_iommu_tlb_sync(void *cookie)
@@ -137,6 +138,10 @@ static void mtk_iommu_tlb_sync(void *cookie)
 	int ret;
 	u32 tmp;
 
+	/* Avoid timing out if there's nothing to wait for */
+	if (!data->tlb_flush_active)
+		return;
+
 	ret = readl_poll_timeout_atomic(data->base + REG_MMU_CPE_DONE, tmp,
 					tmp != 0, 10, 100000);
 	if (ret) {
@@ -146,6 +151,7 @@ static void mtk_iommu_tlb_sync(void *cookie)
 	}
 	/* Clear the CPE status */
 	writel_relaxed(0, data->base + REG_MMU_CPE_DONE);
+	data->tlb_flush_active = false;
 }
 
 static const struct iommu_gather_ops mtk_iommu_gather_ops = {
diff --git a/drivers/iommu/mtk_iommu.h b/drivers/iommu/mtk_iommu.h
index 2a28eadeea0e..c06cc91b5d9a 100644
--- a/drivers/iommu/mtk_iommu.h
+++ b/drivers/iommu/mtk_iommu.h
@@ -47,6 +47,7 @@ struct mtk_iommu_data {
 	struct iommu_group		*m4u_group;
 	struct mtk_smi_iommu		smi_imu;      /* SMI larb iommu info */
 	bool                            enable_4GB;
+	bool				tlb_flush_active;
 
 	struct iommu_device		iommu;
 };
diff --git a/drivers/iommu/omap-iommu.c b/drivers/iommu/omap-iommu.c
index 95dfca36ccb9..641e035cf866 100644
--- a/drivers/iommu/omap-iommu.c
+++ b/drivers/iommu/omap-iommu.c
@@ -1309,7 +1309,7 @@ static void omap_iommu_remove_device(struct device *dev)
 static struct iommu_group *omap_iommu_device_group(struct device *dev)
 {
 	struct omap_iommu_arch_data *arch_data = dev->archdata.iommu;
-	struct iommu_group *group = NULL;
+	struct iommu_group *group = ERR_PTR(-EINVAL);
 
 	if (arch_data->iommu_dev)
 		group = arch_data->iommu_dev->group;
diff --git a/drivers/iommu/s390-iommu.c b/drivers/iommu/s390-iommu.c
index 179e636a4d91..8788640756a7 100644
--- a/drivers/iommu/s390-iommu.c
+++ b/drivers/iommu/s390-iommu.c
@@ -165,20 +165,14 @@ static void s390_iommu_detach_device(struct iommu_domain *domain,
 
 static int s390_iommu_add_device(struct device *dev)
 {
-	struct iommu_group *group;
-	int rc;
+	struct iommu_group *group = iommu_group_get_for_dev(dev);
 
-	group = iommu_group_get(dev);
-	if (!group) {
-		group = iommu_group_alloc();
-		if (IS_ERR(group))
-			return PTR_ERR(group);
-	}
+	if (IS_ERR(group))
+		return PTR_ERR(group);
 
-	rc = iommu_group_add_device(group, dev);
 	iommu_group_put(group);
 
-	return rc;
+	return 0;
 }
 
 static void s390_iommu_remove_device(struct device *dev)
@@ -344,6 +338,7 @@ static struct iommu_ops s390_iommu_ops = {
 	.iova_to_phys = s390_iommu_iova_to_phys,
 	.add_device = s390_iommu_add_device,
 	.remove_device = s390_iommu_remove_device,
+	.device_group = generic_device_group,
 	.pgsize_bitmap = S390_IOMMU_PGSIZES,
 };
 
diff --git a/drivers/irqchip/irq-atmel-aic-common.c b/drivers/irqchip/irq-atmel-aic-common.c
index 28b26c80f4cf..072bd227b6c6 100644
--- a/drivers/irqchip/irq-atmel-aic-common.c
+++ b/drivers/irqchip/irq-atmel-aic-common.c
@@ -137,14 +137,14 @@ static void __init aic_common_ext_irq_of_init(struct irq_domain *domain)
 #define AT91_RTC_IMR           0x28
 #define AT91_RTC_IRQ_MASK      0x1f
 
-void __init aic_common_rtc_irq_fixup(struct device_node *root)
+void __init aic_common_rtc_irq_fixup(void)
 {
 	struct device_node *np;
 	void __iomem *regs;
 
-	np = of_find_compatible_node(root, NULL, "atmel,at91rm9200-rtc");
+	np = of_find_compatible_node(NULL, NULL, "atmel,at91rm9200-rtc");
 	if (!np)
-		np = of_find_compatible_node(root, NULL,
+		np = of_find_compatible_node(NULL, NULL,
 					     "atmel,at91sam9x5-rtc");
 
 	if (!np)
@@ -165,7 +165,7 @@ void __init aic_common_rtc_irq_fixup(struct device_node *root)
 #define AT91_RTT_ALMIEN		(1 << 16)		/* Alarm Interrupt Enable */
 #define AT91_RTT_RTTINCIEN	(1 << 17)		/* Real Time Timer Increment Interrupt Enable */
 
-void __init aic_common_rtt_irq_fixup(struct device_node *root)
+void __init aic_common_rtt_irq_fixup(void)
 {
 	struct device_node *np;
 	void __iomem *regs;
@@ -196,11 +196,10 @@ static void __init aic_common_irq_fixup(const struct of_device_id *matches)
 		return;
 
 	match = of_match_node(matches, root);
-	of_node_put(root);
 
 	if (match) {
-		void (*fixup)(struct device_node *) = match->data;
-		fixup(root);
+		void (*fixup)(void) = match->data;
+		fixup();
 	}
 
 	of_node_put(root);
diff --git a/drivers/irqchip/irq-atmel-aic-common.h b/drivers/irqchip/irq-atmel-aic-common.h
index af60376d50de..242e62c1851e 100644
--- a/drivers/irqchip/irq-atmel-aic-common.h
+++ b/drivers/irqchip/irq-atmel-aic-common.h
@@ -33,8 +33,8 @@ struct irq_domain *__init aic_common_of_init(struct device_node *node,
 					     const char *name, int nirqs,
 					     const struct of_device_id *matches);
 
-void __init aic_common_rtc_irq_fixup(struct device_node *root);
+void __init aic_common_rtc_irq_fixup(void);
 
-void __init aic_common_rtt_irq_fixup(struct device_node *root);
+void __init aic_common_rtt_irq_fixup(void);
 
 #endif /* __IRQ_ATMEL_AIC_COMMON_H */
diff --git a/drivers/irqchip/irq-atmel-aic.c b/drivers/irqchip/irq-atmel-aic.c
index 37f952dd9fc9..bb1ad451392f 100644
--- a/drivers/irqchip/irq-atmel-aic.c
+++ b/drivers/irqchip/irq-atmel-aic.c
@@ -209,20 +209,20 @@ static const struct irq_domain_ops aic_irq_ops = {
 	.xlate	= aic_irq_domain_xlate,
 };
 
-static void __init at91rm9200_aic_irq_fixup(struct device_node *root)
+static void __init at91rm9200_aic_irq_fixup(void)
 {
-	aic_common_rtc_irq_fixup(root);
+	aic_common_rtc_irq_fixup();
 }
 
-static void __init at91sam9260_aic_irq_fixup(struct device_node *root)
+static void __init at91sam9260_aic_irq_fixup(void)
 {
-	aic_common_rtt_irq_fixup(root);
+	aic_common_rtt_irq_fixup();
 }
 
-static void __init at91sam9g45_aic_irq_fixup(struct device_node *root)
+static void __init at91sam9g45_aic_irq_fixup(void)
 {
-	aic_common_rtc_irq_fixup(root);
-	aic_common_rtt_irq_fixup(root);
+	aic_common_rtc_irq_fixup();
+	aic_common_rtt_irq_fixup();
 }
 
 static const struct of_device_id aic_irq_fixups[] __initconst = {
diff --git a/drivers/irqchip/irq-atmel-aic5.c b/drivers/irqchip/irq-atmel-aic5.c
index c04ee9a23d09..6acad2ea0fb3 100644
--- a/drivers/irqchip/irq-atmel-aic5.c
+++ b/drivers/irqchip/irq-atmel-aic5.c
@@ -305,9 +305,9 @@ static const struct irq_domain_ops aic5_irq_ops = {
 	.xlate	= aic5_irq_domain_xlate,
 };
 
-static void __init sama5d3_aic_irq_fixup(struct device_node *root)
+static void __init sama5d3_aic_irq_fixup(void)
 {
-	aic_common_rtc_irq_fixup(root);
+	aic_common_rtc_irq_fixup();
 }
 
 static const struct of_device_id aic5_irq_fixups[] __initconst = {
diff --git a/drivers/irqchip/irq-brcmstb-l2.c b/drivers/irqchip/irq-brcmstb-l2.c
index bddf169c4b37..b009b916a292 100644
--- a/drivers/irqchip/irq-brcmstb-l2.c
+++ b/drivers/irqchip/irq-brcmstb-l2.c
@@ -189,6 +189,7 @@ static int __init brcmstb_l2_intc_of_init(struct device_node *np,
 
 	ct->chip.irq_suspend = brcmstb_l2_intc_suspend;
 	ct->chip.irq_resume = brcmstb_l2_intc_resume;
+	ct->chip.irq_pm_shutdown = brcmstb_l2_intc_suspend;
 
 	if (data->can_wake) {
 		/* This IRQ chip can wake the system, set all child interrupts
diff --git a/drivers/irqchip/irq-digicolor.c b/drivers/irqchip/irq-digicolor.c
index dad85e74c37c..3aae015469a5 100644
--- a/drivers/irqchip/irq-digicolor.c
+++ b/drivers/irqchip/irq-digicolor.c
@@ -71,7 +71,7 @@ static void __init digicolor_set_gc(void __iomem *reg_base, unsigned irq_base,
 static int __init digicolor_of_init(struct device_node *node,
 				struct device_node *parent)
 {
-	static void __iomem *reg_base;
+	void __iomem *reg_base;
 	unsigned int clr = IRQ_NOREQUEST | IRQ_NOPROBE | IRQ_NOAUTOEN;
 	struct regmap *ucregs;
 	int ret;
diff --git a/drivers/irqchip/irq-gic-realview.c b/drivers/irqchip/irq-gic-realview.c
index 54c296401525..18d58d2b4ffe 100644
--- a/drivers/irqchip/irq-gic-realview.c
+++ b/drivers/irqchip/irq-gic-realview.c
@@ -43,7 +43,7 @@ static const struct of_device_id syscon_pldset_of_match[] = {
 static int __init
 realview_gic_of_init(struct device_node *node, struct device_node *parent)
 {
-	static struct regmap *map;
+	struct regmap *map;
 	struct device_node *np;
 	const struct of_device_id *gic_id;
 	u32 pld1_ctrl;
diff --git a/drivers/irqchip/irq-gic-v3-its-platform-msi.c b/drivers/irqchip/irq-gic-v3-its-platform-msi.c
index 249240d9a425..833a90fe33ae 100644
--- a/drivers/irqchip/irq-gic-v3-its-platform-msi.c
+++ b/drivers/irqchip/irq-gic-v3-its-platform-msi.c
@@ -43,6 +43,7 @@ static int of_pmsi_get_dev_id(struct irq_domain *domain, struct device *dev,
 			*dev_id = args.args[0];
 			break;
 		}
+		index++;
 	} while (!ret);
 
 	return ret;
diff --git a/drivers/irqchip/irq-gic-v3-its.c b/drivers/irqchip/irq-gic-v3-its.c
index 68932873eebc..284738add89b 100644
--- a/drivers/irqchip/irq-gic-v3-its.c
+++ b/drivers/irqchip/irq-gic-v3-its.c
@@ -1835,7 +1835,7 @@ static int __init its_of_probe(struct device_node *node)
 
 #define ACPI_GICV3_ITS_MEM_SIZE (SZ_128K)
 
-#if defined(CONFIG_ACPI_NUMA) && (ACPI_CA_VERSION >= 0x20170531)
+#ifdef CONFIG_ACPI_NUMA
 struct its_srat_map {
 	/* numa node id */
 	u32	numa_node;
@@ -1843,7 +1843,7 @@ struct its_srat_map {
 	u32	its_id;
 };
 
-static struct its_srat_map its_srat_maps[MAX_NUMNODES] __initdata;
+static struct its_srat_map *its_srat_maps __initdata;
 static int its_in_srat __initdata;
 
 static int __init acpi_get_its_numa_node(u32 its_id)
@@ -1857,6 +1857,12 @@ static int __init acpi_get_its_numa_node(u32 its_id)
 	return NUMA_NO_NODE;
 }
 
+static int __init gic_acpi_match_srat_its(struct acpi_subtable_header *header,
+					  const unsigned long end)
+{
+	return 0;
+}
+
 static int __init gic_acpi_parse_srat_its(struct acpi_subtable_header *header,
 			 const unsigned long end)
 {
@@ -1873,12 +1879,6 @@ static int __init gic_acpi_parse_srat_its(struct acpi_subtable_header *header,
 		return -EINVAL;
 	}
 
-	if (its_in_srat >= MAX_NUMNODES) {
-		pr_err("SRAT: ITS affinity exceeding max count[%d]\n",
-				MAX_NUMNODES);
-		return -EINVAL;
-	}
-
 	node = acpi_map_pxm_to_node(its_affinity->proximity_domain);
 
 	if (node == NUMA_NO_NODE || node >= MAX_NUMNODES) {
@@ -1897,14 +1897,37 @@ static int __init gic_acpi_parse_srat_its(struct acpi_subtable_header *header,
 
 static void __init acpi_table_parse_srat_its(void)
 {
+	int count;
+
+	count = acpi_table_parse_entries(ACPI_SIG_SRAT,
+			sizeof(struct acpi_table_srat),
+			ACPI_SRAT_TYPE_GIC_ITS_AFFINITY,
+			gic_acpi_match_srat_its, 0);
+	if (count <= 0)
+		return;
+
+	its_srat_maps = kmalloc(count * sizeof(struct its_srat_map),
+				GFP_KERNEL);
+	if (!its_srat_maps) {
+		pr_warn("SRAT: Failed to allocate memory for its_srat_maps!\n");
+		return;
+	}
+
 	acpi_table_parse_entries(ACPI_SIG_SRAT,
 			sizeof(struct acpi_table_srat),
 			ACPI_SRAT_TYPE_GIC_ITS_AFFINITY,
 			gic_acpi_parse_srat_its, 0);
 }
+
+/* free the its_srat_maps after ITS probing */
+static void __init acpi_its_srat_maps_free(void)
+{
+	kfree(its_srat_maps);
+}
 #else
 static void __init acpi_table_parse_srat_its(void)	{ }
 static int __init acpi_get_its_numa_node(u32 its_id) { return NUMA_NO_NODE; }
+static void __init acpi_its_srat_maps_free(void) { }
 #endif
 
 static int __init gic_acpi_parse_madt_its(struct acpi_subtable_header *header,
@@ -1951,6 +1974,7 @@ static void __init its_acpi_probe(void)
 	acpi_table_parse_srat_its();
 	acpi_table_parse_madt(ACPI_MADT_TYPE_GENERIC_TRANSLATOR,
 			      gic_acpi_parse_madt_its, 0);
+	acpi_its_srat_maps_free();
 }
 #else
 static void __init its_acpi_probe(void) { }
diff --git a/drivers/irqchip/irq-gic-v3.c b/drivers/irqchip/irq-gic-v3.c
index dbffb7ab6203..984c3ecfd22c 100644
--- a/drivers/irqchip/irq-gic-v3.c
+++ b/drivers/irqchip/irq-gic-v3.c
@@ -353,6 +353,8 @@ static asmlinkage void __exception_irq_entry gic_handle_irq(struct pt_regs *regs
 
 			if (static_key_true(&supports_deactivate))
 				gic_write_eoir(irqnr);
+			else
+				isb();
 
 			err = handle_domain_irq(gic_data.domain, irqnr, regs);
 			if (err) {
@@ -640,11 +642,16 @@ static void gic_smp_init(void)
 static int gic_set_affinity(struct irq_data *d, const struct cpumask *mask_val,
 			    bool force)
 {
-	unsigned int cpu = cpumask_any_and(mask_val, cpu_online_mask);
+	unsigned int cpu;
 	void __iomem *reg;
 	int enabled;
 	u64 val;
 
+	if (force)
+		cpu = cpumask_first(mask_val);
+	else
+		cpu = cpumask_any_and(mask_val, cpu_online_mask);
+
 	if (cpu >= nr_cpu_ids)
 		return -EINVAL;
 
@@ -831,8 +838,11 @@ static int gic_irq_domain_alloc(struct irq_domain *domain, unsigned int virq,
 	if (ret)
 		return ret;
 
-	for (i = 0; i < nr_irqs; i++)
-		gic_irq_domain_map(domain, virq + i, hwirq + i);
+	for (i = 0; i < nr_irqs; i++) {
+		ret = gic_irq_domain_map(domain, virq + i, hwirq + i);
+		if (ret)
+			return ret;
+	}
 
 	return 0;
 }
diff --git a/drivers/irqchip/irq-gic.c b/drivers/irqchip/irq-gic.c
index 1b1df4f770bd..d3e7c43718b8 100644
--- a/drivers/irqchip/irq-gic.c
+++ b/drivers/irqchip/irq-gic.c
@@ -361,6 +361,7 @@ static void __exception_irq_entry gic_handle_irq(struct pt_regs *regs)
 		if (likely(irqnr > 15 && irqnr < 1020)) {
 			if (static_key_true(&supports_deactivate))
 				writel_relaxed(irqstat, cpu_base + GIC_CPU_EOI);
+			isb();
 			handle_domain_irq(gic->domain, irqnr, regs);
 			continue;
 		}
@@ -401,10 +402,12 @@ static void gic_handle_cascade_irq(struct irq_desc *desc)
 		goto out;
 
 	cascade_irq = irq_find_mapping(chip_data->domain, gic_irq);
-	if (unlikely(gic_irq < 32 || gic_irq > 1020))
+	if (unlikely(gic_irq < 32 || gic_irq > 1020)) {
 		handle_bad_irq(desc);
-	else
+	} else {
+		isb();
 		generic_handle_irq(cascade_irq);
+	}
 
  out:
 	chained_irq_exit(chip, desc);
@@ -1027,8 +1030,11 @@ static int gic_irq_domain_alloc(struct irq_domain *domain, unsigned int virq,
 	if (ret)
 		return ret;
 
-	for (i = 0; i < nr_irqs; i++)
-		gic_irq_domain_map(domain, virq + i, hwirq + i);
+	for (i = 0; i < nr_irqs; i++) {
+		ret = gic_irq_domain_map(domain, virq + i, hwirq + i);
+		if (ret)
+			return ret;
+	}
 
 	return 0;
 }
diff --git a/drivers/irqchip/irq-mips-cpu.c b/drivers/irqchip/irq-mips-cpu.c
index 0a8ed1c05518..14461cbfab2f 100644
--- a/drivers/irqchip/irq-mips-cpu.c
+++ b/drivers/irqchip/irq-mips-cpu.c
@@ -154,7 +154,7 @@ asmlinkage void __weak plat_irq_dispatch(void)
 static int mips_cpu_intc_map(struct irq_domain *d, unsigned int irq,
 			     irq_hw_number_t hw)
 {
-	static struct irq_chip *chip;
+	struct irq_chip *chip;
 
 	if (hw < 2 && cpu_has_mipsmt) {
 		/* Software interrupts are used for MT/CMT IPI */
diff --git a/drivers/irqchip/irq-mips-gic.c b/drivers/irqchip/irq-mips-gic.c
index 832ebf4062f7..6ab1d3afec02 100644
--- a/drivers/irqchip/irq-mips-gic.c
+++ b/drivers/irqchip/irq-mips-gic.c
@@ -950,7 +950,6 @@ static void __init __gic_init(unsigned long gic_base_addr,
 					       &gic_irq_domain_ops, NULL);
 	if (!gic_irq_domain)
 		panic("Failed to add GIC IRQ domain");
-	gic_irq_domain->name = "mips-gic-irq";
 
 	gic_ipi_domain = irq_domain_add_hierarchy(gic_irq_domain,
 						  IRQ_DOMAIN_FLAG_IPI_PER_CPU,
@@ -959,7 +958,6 @@ static void __init __gic_init(unsigned long gic_base_addr,
 	if (!gic_ipi_domain)
 		panic("Failed to add GIC IPI domain");
 
-	gic_ipi_domain->name = "mips-gic-ipi";
 	irq_domain_update_bus_token(gic_ipi_domain, DOMAIN_BUS_IPI);
 
 	if (node &&
diff --git a/drivers/isdn/divert/isdn_divert.c b/drivers/isdn/divert/isdn_divert.c
index 060d357f107f..6f423bc49d0d 100644
--- a/drivers/isdn/divert/isdn_divert.c
+++ b/drivers/isdn/divert/isdn_divert.c
@@ -485,18 +485,19 @@ static int isdn_divert_icall(isdn_ctrl *ic)
 				cs->deflect_dest[0] = '\0';
 				retval = 4; /* only proceed */
 			}
-			sprintf(cs->info, "%d 0x%lx %s %s %s %s 0x%x 0x%x %d %d %s\n",
-				cs->akt_state,
-				cs->divert_id,
-				divert_if.drv_to_name(cs->ics.driver),
-				(ic->command == ISDN_STAT_ICALLW) ? "1" : "0",
-				cs->ics.parm.setup.phone,
-				cs->ics.parm.setup.eazmsn,
-				cs->ics.parm.setup.si1,
-				cs->ics.parm.setup.si2,
-				cs->ics.parm.setup.screen,
-				dv->rule.waittime,
-				cs->deflect_dest);
+			snprintf(cs->info, sizeof(cs->info),
+				 "%d 0x%lx %s %s %s %s 0x%x 0x%x %d %d %s\n",
+				 cs->akt_state,
+				 cs->divert_id,
+				 divert_if.drv_to_name(cs->ics.driver),
+				 (ic->command == ISDN_STAT_ICALLW) ? "1" : "0",
+				 cs->ics.parm.setup.phone,
+				 cs->ics.parm.setup.eazmsn,
+				 cs->ics.parm.setup.si1,
+				 cs->ics.parm.setup.si2,
+				 cs->ics.parm.setup.screen,
+				 dv->rule.waittime,
+				 cs->deflect_dest);
 			if ((dv->rule.action == DEFLECT_REPORT) ||
 			    (dv->rule.action == DEFLECT_REJECT)) {
 				put_info_buffer(cs->info);
diff --git a/drivers/isdn/hardware/avm/c4.c b/drivers/isdn/hardware/avm/c4.c
index 40c7e2cf423b..034cabac699d 100644
--- a/drivers/isdn/hardware/avm/c4.c
+++ b/drivers/isdn/hardware/avm/c4.c
@@ -42,7 +42,7 @@ static char *revision = "$Revision: 1.1.2.2 $";
 
 static bool suppress_pollack;
 
-static struct pci_device_id c4_pci_tbl[] = {
+static const struct pci_device_id c4_pci_tbl[] = {
 	{ PCI_VENDOR_ID_DEC, PCI_DEVICE_ID_DEC_21285, PCI_VENDOR_ID_AVM, PCI_DEVICE_ID_AVM_C4, 0, 0, (unsigned long)4 },
 	{ PCI_VENDOR_ID_DEC, PCI_DEVICE_ID_DEC_21285, PCI_VENDOR_ID_AVM, PCI_DEVICE_ID_AVM_C2, 0, 0, (unsigned long)2 },
 	{ }			/* Terminating entry */
diff --git a/drivers/isdn/hardware/eicon/divasmain.c b/drivers/isdn/hardware/eicon/divasmain.c
index 8b7ad4f1ab01..b2023e08dcd2 100644
--- a/drivers/isdn/hardware/eicon/divasmain.c
+++ b/drivers/isdn/hardware/eicon/divasmain.c
@@ -110,7 +110,7 @@ typedef struct _diva_os_thread_dpc {
 /*
   This table should be sorted by PCI device ID
 */
-static struct pci_device_id divas_pci_tbl[] = {
+static const struct pci_device_id divas_pci_tbl[] = {
 	/* Diva Server BRI-2M PCI 0xE010 */
 	{ PCI_VDEVICE(EICON, PCI_DEVICE_ID_EICON_MAESTRA),
 	  CARDTYPE_MAESTRA_PCI },
diff --git a/drivers/isdn/hardware/mISDN/avmfritz.c b/drivers/isdn/hardware/mISDN/avmfritz.c
index e3fa1cd64470..dce6632daae1 100644
--- a/drivers/isdn/hardware/mISDN/avmfritz.c
+++ b/drivers/isdn/hardware/mISDN/avmfritz.c
@@ -1142,7 +1142,7 @@ fritz_remove_pci(struct pci_dev *pdev)
 			pr_info("%s: drvdata already removed\n", __func__);
 }
 
-static struct pci_device_id fcpci_ids[] = {
+static const struct pci_device_id fcpci_ids[] = {
 	{ PCI_VENDOR_ID_AVM, PCI_DEVICE_ID_AVM_A1, PCI_ANY_ID, PCI_ANY_ID,
 	  0, 0, (unsigned long) "Fritz!Card PCI"},
 	{ PCI_VENDOR_ID_AVM, PCI_DEVICE_ID_AVM_A1_V2, PCI_ANY_ID, PCI_ANY_ID,
diff --git a/drivers/isdn/hardware/mISDN/hfcmulti.c b/drivers/isdn/hardware/mISDN/hfcmulti.c
index aea0c9616ea5..3cf07b8ced1c 100644
--- a/drivers/isdn/hardware/mISDN/hfcmulti.c
+++ b/drivers/isdn/hardware/mISDN/hfcmulti.c
@@ -5348,7 +5348,7 @@ static const struct hm_map hfcm_map[] = {
 
 #undef H
 #define H(x)	((unsigned long)&hfcm_map[x])
-static struct pci_device_id hfmultipci_ids[] = {
+static const struct pci_device_id hfmultipci_ids[] = {
 
 	/* Cards with HFC-4S Chip */
 	{ PCI_VENDOR_ID_CCD, PCI_DEVICE_ID_CCD_HFC4S, PCI_VENDOR_ID_CCD,
diff --git a/drivers/isdn/hardware/mISDN/hfcpci.c b/drivers/isdn/hardware/mISDN/hfcpci.c
index 5dc246d71c16..d2e401a8090e 100644
--- a/drivers/isdn/hardware/mISDN/hfcpci.c
+++ b/drivers/isdn/hardware/mISDN/hfcpci.c
@@ -2161,7 +2161,7 @@ static const struct _hfc_map hfc_map[] =
 	{},
 };
 
-static struct pci_device_id hfc_ids[] =
+static const struct pci_device_id hfc_ids[] =
 {
 	{ PCI_VDEVICE(CCD, PCI_DEVICE_ID_CCD_2BD0),
 	  (unsigned long) &hfc_map[0] },
diff --git a/drivers/isdn/hardware/mISDN/netjet.c b/drivers/isdn/hardware/mISDN/netjet.c
index afde4edef9ae..6a6d848bd18e 100644
--- a/drivers/isdn/hardware/mISDN/netjet.c
+++ b/drivers/isdn/hardware/mISDN/netjet.c
@@ -1137,7 +1137,7 @@ static void nj_remove(struct pci_dev *pdev)
 /* We cannot select cards with PCI_SUB... IDs, since here are cards with
  * SUB IDs set to PCI_ANY_ID, so we need to match all and reject
  * known other cards which not work with this driver - see probe function */
-static struct pci_device_id nj_pci_ids[] = {
+static const struct pci_device_id nj_pci_ids[] = {
 	{ PCI_VENDOR_ID_TIGERJET, PCI_DEVICE_ID_TIGERJET_300,
 	  PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
 	{ }
diff --git a/drivers/isdn/hardware/mISDN/w6692.c b/drivers/isdn/hardware/mISDN/w6692.c
index 3052c836b89f..d80072fef434 100644
--- a/drivers/isdn/hardware/mISDN/w6692.c
+++ b/drivers/isdn/hardware/mISDN/w6692.c
@@ -1398,7 +1398,7 @@ w6692_remove_pci(struct pci_dev *pdev)
 			pr_notice("%s: drvdata already removed\n", __func__);
 }
 
-static struct pci_device_id w6692_ids[] = {
+static const struct pci_device_id w6692_ids[] = {
 	{ PCI_VENDOR_ID_DYNALINK, PCI_DEVICE_ID_DYNALINK_IS64PH,
 	  PCI_ANY_ID, PCI_ANY_ID, 0, 0, (ulong)&w6692_map[0]},
 	{ PCI_VENDOR_ID_WINBOND2, PCI_DEVICE_ID_WINBOND2_6692,
diff --git a/drivers/isdn/hisax/config.c b/drivers/isdn/hisax/config.c
index c7d68675b028..7108bdb8742e 100644
--- a/drivers/isdn/hisax/config.c
+++ b/drivers/isdn/hisax/config.c
@@ -1909,7 +1909,7 @@ static void EChannel_proc_rcv(struct hisax_d_if *d_if)
 #ifdef CONFIG_PCI
 #include <linux/pci.h>
 
-static struct pci_device_id hisax_pci_tbl[] __used = {
+static const struct pci_device_id hisax_pci_tbl[] __used = {
 #ifdef CONFIG_HISAX_FRITZPCI
 	{PCI_VDEVICE(AVM,      PCI_DEVICE_ID_AVM_A1)			},
 #endif
diff --git a/drivers/isdn/hisax/hfc4s8s_l1.c b/drivers/isdn/hisax/hfc4s8s_l1.c
index 90f051ce0259..9090cc1e1f29 100644
--- a/drivers/isdn/hisax/hfc4s8s_l1.c
+++ b/drivers/isdn/hisax/hfc4s8s_l1.c
@@ -86,7 +86,7 @@ typedef struct {
 	char *device_name;
 } hfc4s8s_param;
 
-static struct pci_device_id hfc4s8s_ids[] = {
+static const struct pci_device_id hfc4s8s_ids[] = {
 	{.vendor = PCI_VENDOR_ID_CCD,
 	 .device = PCI_DEVICE_ID_4S,
 	 .subvendor = 0x1397,
diff --git a/drivers/isdn/hisax/hisax_fcpcipnp.c b/drivers/isdn/hisax/hisax_fcpcipnp.c
index 5a9f39ed1d5d..e4f7573ba9bf 100644
--- a/drivers/isdn/hisax/hisax_fcpcipnp.c
+++ b/drivers/isdn/hisax/hisax_fcpcipnp.c
@@ -52,7 +52,7 @@ module_param(debug, int, 0);
 MODULE_AUTHOR("Kai Germaschewski <kai.germaschewski@gmx.de>/Karsten Keil <kkeil@suse.de>");
 MODULE_DESCRIPTION("AVM Fritz!PCI/PnP ISDN driver");
 
-static struct pci_device_id fcpci_ids[] = {
+static const struct pci_device_id fcpci_ids[] = {
 	{ .vendor      = PCI_VENDOR_ID_AVM,
 	  .device      = PCI_DEVICE_ID_AVM_A1,
 	  .subvendor   = PCI_ANY_ID,
diff --git a/drivers/isdn/hysdn/hysdn_proclog.c b/drivers/isdn/hysdn/hysdn_proclog.c
index 7b5fd8fb1761..aaca0b3d662e 100644
--- a/drivers/isdn/hysdn/hysdn_proclog.c
+++ b/drivers/isdn/hysdn/hysdn_proclog.c
@@ -44,7 +44,6 @@ struct procdata {
 	char log_name[15];	/* log filename */
 	struct log_data *log_head, *log_tail;	/* head and tail for queue */
 	int if_used;		/* open count for interface */
-	int volatile del_lock;	/* lock for delete operations */
 	unsigned char logtmp[LOG_MAX_LINELEN];
 	wait_queue_head_t rd_queue;
 };
@@ -102,7 +101,6 @@ put_log_buffer(hysdn_card *card, char *cp)
 {
 	struct log_data *ib;
 	struct procdata *pd = card->proclog;
-	int i;
 	unsigned long flags;
 
 	if (!pd)
@@ -126,21 +124,21 @@ put_log_buffer(hysdn_card *card, char *cp)
 	else
 		pd->log_tail->next = ib;	/* follows existing messages */
 	pd->log_tail = ib;	/* new tail */
-	i = pd->del_lock++;	/* get lock state */
-	spin_unlock_irqrestore(&card->hysdn_lock, flags);
 
 	/* delete old entrys */
-	if (!i)
-		while (pd->log_head->next) {
-			if ((pd->log_head->usage_cnt <= 0) &&
-			    (pd->log_head->next->usage_cnt <= 0)) {
-				ib = pd->log_head;
-				pd->log_head = pd->log_head->next;
-				kfree(ib);
-			} else
-				break;
-		}		/* pd->log_head->next */
-	pd->del_lock--;		/* release lock level */
+	while (pd->log_head->next) {
+		if ((pd->log_head->usage_cnt <= 0) &&
+		    (pd->log_head->next->usage_cnt <= 0)) {
+			ib = pd->log_head;
+			pd->log_head = pd->log_head->next;
+			kfree(ib);
+		} else {
+			break;
+		}
+	}		/* pd->log_head->next */
+
+	spin_unlock_irqrestore(&card->hysdn_lock, flags);
+
 	wake_up_interruptible(&(pd->rd_queue));		/* announce new entry */
 }				/* put_log_buffer */
 
diff --git a/drivers/isdn/i4l/isdn_common.c b/drivers/isdn/i4l/isdn_common.c
index 89b09c51ab7c..38a5bb764c7b 100644
--- a/drivers/isdn/i4l/isdn_common.c
+++ b/drivers/isdn/i4l/isdn_common.c
@@ -1376,6 +1376,7 @@ isdn_ioctl(struct file *file, uint cmd, ulong arg)
 			if (arg) {
 				if (copy_from_user(bname, argp, sizeof(bname) - 1))
 					return -EFAULT;
+				bname[sizeof(bname)-1] = 0;
 			} else
 				return -EINVAL;
 			ret = mutex_lock_interruptible(&dev->mtx);
diff --git a/drivers/isdn/i4l/isdn_net.c b/drivers/isdn/i4l/isdn_net.c
index c151c6daa67e..f63a110b7bcb 100644
--- a/drivers/isdn/i4l/isdn_net.c
+++ b/drivers/isdn/i4l/isdn_net.c
@@ -2611,10 +2611,9 @@ isdn_net_newslave(char *parm)
 	char newname[10];
 
 	if (p) {
-		/* Slave-Name MUST not be empty */
-		if (!strlen(p + 1))
+		/* Slave-Name MUST not be empty or overflow 'newname' */
+		if (strscpy(newname, p + 1, sizeof(newname)) <= 0)
 			return NULL;
-		strcpy(newname, p + 1);
 		*p = 0;
 		/* Master must already exist */
 		if (!(n = isdn_net_findif(parm)))
diff --git a/drivers/isdn/mISDN/fsm.c b/drivers/isdn/mISDN/fsm.c
index 78fc5d5e9051..92e6570b1143 100644
--- a/drivers/isdn/mISDN/fsm.c
+++ b/drivers/isdn/mISDN/fsm.c
@@ -26,7 +26,7 @@
 
 #define FSM_TIMER_DEBUG 0
 
-void
+int
 mISDN_FsmNew(struct Fsm *fsm,
 	     struct FsmNode *fnlist, int fncount)
 {
@@ -34,6 +34,8 @@ mISDN_FsmNew(struct Fsm *fsm,
 
 	fsm->jumpmatrix = kzalloc(sizeof(FSMFNPTR) * fsm->state_count *
 				  fsm->event_count, GFP_KERNEL);
+	if (fsm->jumpmatrix == NULL)
+		return -ENOMEM;
 
 	for (i = 0; i < fncount; i++)
 		if ((fnlist[i].state >= fsm->state_count) ||
@@ -45,6 +47,7 @@ mISDN_FsmNew(struct Fsm *fsm,
 		} else
 			fsm->jumpmatrix[fsm->state_count * fnlist[i].event +
 					fnlist[i].state] = (FSMFNPTR) fnlist[i].routine;
+	return 0;
 }
 EXPORT_SYMBOL(mISDN_FsmNew);
 
diff --git a/drivers/isdn/mISDN/fsm.h b/drivers/isdn/mISDN/fsm.h
index 928f5be192c1..e1def8490221 100644
--- a/drivers/isdn/mISDN/fsm.h
+++ b/drivers/isdn/mISDN/fsm.h
@@ -55,7 +55,7 @@ struct FsmTimer {
 	void *arg;
 };
 
-extern void mISDN_FsmNew(struct Fsm *, struct FsmNode *, int);
+extern int mISDN_FsmNew(struct Fsm *, struct FsmNode *, int);
 extern void mISDN_FsmFree(struct Fsm *);
 extern int mISDN_FsmEvent(struct FsmInst *, int , void *);
 extern void mISDN_FsmChangeState(struct FsmInst *, int);
diff --git a/drivers/isdn/mISDN/layer1.c b/drivers/isdn/mISDN/layer1.c
index bebc57b72138..3192b0eb3944 100644
--- a/drivers/isdn/mISDN/layer1.c
+++ b/drivers/isdn/mISDN/layer1.c
@@ -414,8 +414,7 @@ l1_init(u_int *deb)
 	l1fsm_s.event_count = L1_EVENT_COUNT;
 	l1fsm_s.strEvent = strL1Event;
 	l1fsm_s.strState = strL1SState;
-	mISDN_FsmNew(&l1fsm_s, L1SFnList, ARRAY_SIZE(L1SFnList));
-	return 0;
+	return mISDN_FsmNew(&l1fsm_s, L1SFnList, ARRAY_SIZE(L1SFnList));
 }
 
 void
diff --git a/drivers/isdn/mISDN/layer2.c b/drivers/isdn/mISDN/layer2.c
index 7243a6746f8b..9ff0903a0e89 100644
--- a/drivers/isdn/mISDN/layer2.c
+++ b/drivers/isdn/mISDN/layer2.c
@@ -2247,15 +2247,26 @@ static struct Bprotocol X75SLP = {
 int
 Isdnl2_Init(u_int *deb)
 {
+	int res;
 	debug = deb;
 	mISDN_register_Bprotocol(&X75SLP);
 	l2fsm.state_count = L2_STATE_COUNT;
 	l2fsm.event_count = L2_EVENT_COUNT;
 	l2fsm.strEvent = strL2Event;
 	l2fsm.strState = strL2State;
-	mISDN_FsmNew(&l2fsm, L2FnList, ARRAY_SIZE(L2FnList));
-	TEIInit(deb);
+	res = mISDN_FsmNew(&l2fsm, L2FnList, ARRAY_SIZE(L2FnList));
+	if (res)
+		goto error;
+	res = TEIInit(deb);
+	if (res)
+		goto error_fsm;
 	return 0;
+
+error_fsm:
+	mISDN_FsmFree(&l2fsm);
+error:
+	mISDN_unregister_Bprotocol(&X75SLP);
+	return res;
 }
 
 void
diff --git a/drivers/isdn/mISDN/tei.c b/drivers/isdn/mISDN/tei.c
index 908127efccf8..12d9e5f4beb1 100644
--- a/drivers/isdn/mISDN/tei.c
+++ b/drivers/isdn/mISDN/tei.c
@@ -1387,23 +1387,37 @@ create_teimanager(struct mISDNdevice *dev)
 
 int TEIInit(u_int *deb)
 {
+	int res;
 	debug = deb;
 	teifsmu.state_count = TEI_STATE_COUNT;
 	teifsmu.event_count = TEI_EVENT_COUNT;
 	teifsmu.strEvent = strTeiEvent;
 	teifsmu.strState = strTeiState;
-	mISDN_FsmNew(&teifsmu, TeiFnListUser, ARRAY_SIZE(TeiFnListUser));
+	res = mISDN_FsmNew(&teifsmu, TeiFnListUser, ARRAY_SIZE(TeiFnListUser));
+	if (res)
+		goto error;
 	teifsmn.state_count = TEI_STATE_COUNT;
 	teifsmn.event_count = TEI_EVENT_COUNT;
 	teifsmn.strEvent = strTeiEvent;
 	teifsmn.strState = strTeiState;
-	mISDN_FsmNew(&teifsmn, TeiFnListNet, ARRAY_SIZE(TeiFnListNet));
+	res = mISDN_FsmNew(&teifsmn, TeiFnListNet, ARRAY_SIZE(TeiFnListNet));
+	if (res)
+		goto error_smn;
 	deactfsm.state_count =  DEACT_STATE_COUNT;
 	deactfsm.event_count = DEACT_EVENT_COUNT;
 	deactfsm.strEvent = strDeactEvent;
 	deactfsm.strState = strDeactState;
-	mISDN_FsmNew(&deactfsm, DeactFnList, ARRAY_SIZE(DeactFnList));
+	res = mISDN_FsmNew(&deactfsm, DeactFnList, ARRAY_SIZE(DeactFnList));
+	if (res)
+		goto error_deact;
 	return 0;
+
+error_deact:
+	mISDN_FsmFree(&teifsmn);
+error_smn:
+	mISDN_FsmFree(&teifsmu);
+error:
+	return res;
 }
 
 void TEIFree(void)
diff --git a/drivers/lightnvm/pblk-rb.c b/drivers/lightnvm/pblk-rb.c
index 5ecc154f6831..9bc32578a766 100644
--- a/drivers/lightnvm/pblk-rb.c
+++ b/drivers/lightnvm/pblk-rb.c
@@ -657,7 +657,7 @@ try:
  * be directed to disk.
  */
 int pblk_rb_copy_to_bio(struct pblk_rb *rb, struct bio *bio, sector_t lba,
-			struct ppa_addr ppa, int bio_iter)
+			struct ppa_addr ppa, int bio_iter, bool advanced_bio)
 {
 	struct pblk *pblk = container_of(rb, struct pblk, rwb);
 	struct pblk_rb_entry *entry;
@@ -694,7 +694,7 @@ int pblk_rb_copy_to_bio(struct pblk_rb *rb, struct bio *bio, sector_t lba,
 	 * filled with data from the cache). If part of the data resides on the
 	 * media, we will read later on
 	 */
-	if (unlikely(!bio->bi_iter.bi_idx))
+	if (unlikely(!advanced_bio))
 		bio_advance(bio, bio_iter * PBLK_EXPOSED_PAGE_SIZE);
 
 	data = bio_data(bio);
diff --git a/drivers/lightnvm/pblk-read.c b/drivers/lightnvm/pblk-read.c
index 4e5c48f3de62..d682e89e6493 100644
--- a/drivers/lightnvm/pblk-read.c
+++ b/drivers/lightnvm/pblk-read.c
@@ -26,7 +26,7 @@
  */
 static int pblk_read_from_cache(struct pblk *pblk, struct bio *bio,
 				sector_t lba, struct ppa_addr ppa,
-				int bio_iter)
+				int bio_iter, bool advanced_bio)
 {
 #ifdef CONFIG_NVM_DEBUG
 	/* Callers must ensure that the ppa points to a cache address */
@@ -34,7 +34,8 @@ static int pblk_read_from_cache(struct pblk *pblk, struct bio *bio,
 	BUG_ON(!pblk_addr_in_cache(ppa));
 #endif
 
-	return pblk_rb_copy_to_bio(&pblk->rwb, bio, lba, ppa, bio_iter);
+	return pblk_rb_copy_to_bio(&pblk->rwb, bio, lba, ppa,
+						bio_iter, advanced_bio);
 }
 
 static void pblk_read_ppalist_rq(struct pblk *pblk, struct nvm_rq *rqd,
@@ -44,7 +45,7 @@ static void pblk_read_ppalist_rq(struct pblk *pblk, struct nvm_rq *rqd,
 	struct ppa_addr ppas[PBLK_MAX_REQ_ADDRS];
 	sector_t blba = pblk_get_lba(bio);
 	int nr_secs = rqd->nr_ppas;
-	int advanced_bio = 0;
+	bool advanced_bio = false;
 	int i, j = 0;
 
 	/* logic error: lba out-of-bounds. Ignore read request */
@@ -62,19 +63,26 @@ static void pblk_read_ppalist_rq(struct pblk *pblk, struct nvm_rq *rqd,
 retry:
 		if (pblk_ppa_empty(p)) {
 			WARN_ON(test_and_set_bit(i, read_bitmap));
-			continue;
+
+			if (unlikely(!advanced_bio)) {
+				bio_advance(bio, (i) * PBLK_EXPOSED_PAGE_SIZE);
+				advanced_bio = true;
+			}
+
+			goto next;
 		}
 
 		/* Try to read from write buffer. The address is later checked
 		 * on the write buffer to prevent retrieving overwritten data.
 		 */
 		if (pblk_addr_in_cache(p)) {
-			if (!pblk_read_from_cache(pblk, bio, lba, p, i)) {
+			if (!pblk_read_from_cache(pblk, bio, lba, p, i,
+								advanced_bio)) {
 				pblk_lookup_l2p_seq(pblk, &p, lba, 1);
 				goto retry;
 			}
 			WARN_ON(test_and_set_bit(i, read_bitmap));
-			advanced_bio = 1;
+			advanced_bio = true;
 #ifdef CONFIG_NVM_DEBUG
 			atomic_long_inc(&pblk->cache_reads);
 #endif
@@ -83,6 +91,7 @@ retry:
 			rqd->ppa_list[j++] = p;
 		}
 
+next:
 		if (advanced_bio)
 			bio_advance(bio, PBLK_EXPOSED_PAGE_SIZE);
 	}
@@ -282,7 +291,7 @@ retry:
 	 * write buffer to prevent retrieving overwritten data.
 	 */
 	if (pblk_addr_in_cache(ppa)) {
-		if (!pblk_read_from_cache(pblk, bio, lba, ppa, 0)) {
+		if (!pblk_read_from_cache(pblk, bio, lba, ppa, 0, 1)) {
 			pblk_lookup_l2p_seq(pblk, &ppa, lba, 1);
 			goto retry;
 		}
diff --git a/drivers/lightnvm/pblk.h b/drivers/lightnvm/pblk.h
index 0c5692cc2f60..67e623bd5c2d 100644
--- a/drivers/lightnvm/pblk.h
+++ b/drivers/lightnvm/pblk.h
@@ -670,7 +670,7 @@ unsigned int pblk_rb_read_to_bio_list(struct pblk_rb *rb, struct bio *bio,
 				      struct list_head *list,
 				      unsigned int max);
 int pblk_rb_copy_to_bio(struct pblk_rb *rb, struct bio *bio, sector_t lba,
-			struct ppa_addr ppa, int bio_iter);
+			struct ppa_addr ppa, int bio_iter, bool advanced_bio);
 unsigned int pblk_rb_read_commit(struct pblk_rb *rb, unsigned int entries);
 
 unsigned int pblk_rb_sync_init(struct pblk_rb *rb, unsigned long *flags);
diff --git a/drivers/mailbox/pcc.c b/drivers/mailbox/pcc.c
index ac91fd0d62c6..cbca5e51b975 100644
--- a/drivers/mailbox/pcc.c
+++ b/drivers/mailbox/pcc.c
@@ -92,7 +92,7 @@ static struct mbox_controller pcc_mbox_ctrl = {};
  */
 static struct mbox_chan *get_pcc_channel(int id)
 {
-	if (id < 0 || id > pcc_mbox_ctrl.num_chans)
+	if (id < 0 || id >= pcc_mbox_ctrl.num_chans)
 		return ERR_PTR(-ENOENT);
 
 	return &pcc_mbox_channels[id];
diff --git a/drivers/md/bitmap.c b/drivers/md/bitmap.c
index f4eace5ea184..40f3cd7eab0f 100644
--- a/drivers/md/bitmap.c
+++ b/drivers/md/bitmap.c
@@ -156,7 +156,8 @@ static int read_sb_page(struct mddev *mddev, loff_t offset,
 
 	rdev_for_each(rdev, mddev) {
 		if (! test_bit(In_sync, &rdev->flags)
-		    || test_bit(Faulty, &rdev->flags))
+		    || test_bit(Faulty, &rdev->flags)
+		    || test_bit(Bitmap_sync, &rdev->flags))
 			continue;
 
 		target = offset + index * (PAGE_SIZE/512);
diff --git a/drivers/md/dm-bufio.c b/drivers/md/dm-bufio.c
index 850ff6c67994..44f4a8ac95bd 100644
--- a/drivers/md/dm-bufio.c
+++ b/drivers/md/dm-bufio.c
@@ -1258,8 +1258,7 @@ EXPORT_SYMBOL_GPL(dm_bufio_write_dirty_buffers_async);
  */
 int dm_bufio_write_dirty_buffers(struct dm_bufio_client *c)
 {
-	blk_status_t a;
-	int f;
+	int a, f;
 	unsigned long buffers_processed = 0;
 	struct dm_buffer *b, *tmp;
 
diff --git a/drivers/md/dm-integrity.c b/drivers/md/dm-integrity.c
index 1b224aa9cf15..3acce09bba35 100644
--- a/drivers/md/dm-integrity.c
+++ b/drivers/md/dm-integrity.c
@@ -1587,16 +1587,18 @@ retry:
 	if (likely(ic->mode == 'J')) {
 		if (dio->write) {
 			unsigned next_entry, i, pos;
-			unsigned ws, we;
+			unsigned ws, we, range_sectors;
 
-			dio->range.n_sectors = min(dio->range.n_sectors, ic->free_sectors);
+			dio->range.n_sectors = min(dio->range.n_sectors,
+						   ic->free_sectors << ic->sb->log2_sectors_per_block);
 			if (unlikely(!dio->range.n_sectors))
 				goto sleep;
-			ic->free_sectors -= dio->range.n_sectors;
+			range_sectors = dio->range.n_sectors >> ic->sb->log2_sectors_per_block;
+			ic->free_sectors -= range_sectors;
 			journal_section = ic->free_section;
 			journal_entry = ic->free_section_entry;
 
-			next_entry = ic->free_section_entry + dio->range.n_sectors;
+			next_entry = ic->free_section_entry + range_sectors;
 			ic->free_section_entry = next_entry % ic->journal_section_entries;
 			ic->free_section += next_entry / ic->journal_section_entries;
 			ic->n_uncommitted_sections += next_entry / ic->journal_section_entries;
@@ -1727,6 +1729,8 @@ static void pad_uncommitted(struct dm_integrity_c *ic)
 		wraparound_section(ic, &ic->free_section);
 		ic->n_uncommitted_sections++;
 	}
+	WARN_ON(ic->journal_sections * ic->journal_section_entries !=
+		(ic->n_uncommitted_sections + ic->n_committed_sections) * ic->journal_section_entries + ic->free_sectors);
 }
 
 static void integrity_commit(struct work_struct *w)
@@ -1821,6 +1825,9 @@ static void do_journal_write(struct dm_integrity_c *ic, unsigned write_start,
 {
 	unsigned i, j, n;
 	struct journal_completion comp;
+	struct blk_plug plug;
+
+	blk_start_plug(&plug);
 
 	comp.ic = ic;
 	comp.in_flight = (atomic_t)ATOMIC_INIT(1);
@@ -1945,6 +1952,8 @@ skip_io:
 
 	dm_bufio_write_dirty_buffers_async(ic->bufio);
 
+	blk_finish_plug(&plug);
+
 	complete_journal_op(&comp);
 	wait_for_completion_io(&comp.comp);
 
@@ -3019,6 +3028,11 @@ static int dm_integrity_ctr(struct dm_target *ti, unsigned argc, char **argv)
 		ti->error = "Block size doesn't match the information in superblock";
 		goto bad;
 	}
+	if (!le32_to_cpu(ic->sb->journal_sections)) {
+		r = -EINVAL;
+		ti->error = "Corrupted superblock, journal_sections is 0";
+		goto bad;
+	}
 	/* make sure that ti->max_io_len doesn't overflow */
 	if (ic->sb->log2_interleave_sectors < MIN_LOG2_INTERLEAVE_SECTORS ||
 	    ic->sb->log2_interleave_sectors > MAX_LOG2_INTERLEAVE_SECTORS) {
diff --git a/drivers/md/dm-raid.c b/drivers/md/dm-raid.c
index 2e10c2f13a34..5bfe285ea9d1 100644
--- a/drivers/md/dm-raid.c
+++ b/drivers/md/dm-raid.c
@@ -208,6 +208,7 @@ struct raid_dev {
 #define RT_FLAG_RS_BITMAP_LOADED	2
 #define RT_FLAG_UPDATE_SBS		3
 #define RT_FLAG_RESHAPE_RS		4
+#define RT_FLAG_RS_SUSPENDED		5
 
 /* Array elements of 64 bit needed for rebuild/failed disk bits */
 #define DISKS_ARRAY_ELEMS ((MAX_RAID_DEVICES + (sizeof(uint64_t) * 8 - 1)) / sizeof(uint64_t) / 8)
@@ -564,9 +565,10 @@ static const char *raid10_md_layout_to_format(int layout)
 	if (__raid10_near_copies(layout) > 1)
 		return "near";
 
-	WARN_ON(__raid10_far_copies(layout) < 2);
+	if (__raid10_far_copies(layout) > 1)
+		return "far";
 
-	return "far";
+	return "unknown";
 }
 
 /* Return md raid10 algorithm for @name */
@@ -2540,11 +2542,6 @@ static int analyse_superblocks(struct dm_target *ti, struct raid_set *rs)
 	if (!freshest)
 		return 0;
 
-	if (validate_raid_redundancy(rs)) {
-		rs->ti->error = "Insufficient redundancy to activate array";
-		return -EINVAL;
-	}
-
 	/*
 	 * Validation of the freshest device provides the source of
 	 * validation for the remaining devices.
@@ -2553,6 +2550,11 @@ static int analyse_superblocks(struct dm_target *ti, struct raid_set *rs)
 	if (super_validate(rs, freshest))
 		return -EINVAL;
 
+	if (validate_raid_redundancy(rs)) {
+		rs->ti->error = "Insufficient redundancy to activate array";
+		return -EINVAL;
+	}
+
 	rdev_for_each(rdev, mddev)
 		if (!test_bit(Journal, &rdev->flags) &&
 		    rdev != freshest &&
@@ -3168,6 +3170,7 @@ static int raid_ctr(struct dm_target *ti, unsigned int argc, char **argv)
 	}
 
 	mddev_suspend(&rs->md);
+	set_bit(RT_FLAG_RS_SUSPENDED, &rs->runtime_flags);
 
 	/* Try to adjust the raid4/5/6 stripe cache size to the stripe size */
 	if (rs_is_raid456(rs)) {
@@ -3625,7 +3628,7 @@ static void raid_postsuspend(struct dm_target *ti)
 {
 	struct raid_set *rs = ti->private;
 
-	if (!rs->md.suspended)
+	if (!test_and_set_bit(RT_FLAG_RS_SUSPENDED, &rs->runtime_flags))
 		mddev_suspend(&rs->md);
 
 	rs->md.ro = 1;
@@ -3759,7 +3762,7 @@ static int rs_start_reshape(struct raid_set *rs)
 		return r;
 
 	/* Need to be resumed to be able to start reshape, recovery is frozen until raid_resume() though */
-	if (mddev->suspended)
+	if (test_and_clear_bit(RT_FLAG_RS_SUSPENDED, &rs->runtime_flags))
 		mddev_resume(mddev);
 
 	/*
@@ -3786,8 +3789,8 @@ static int rs_start_reshape(struct raid_set *rs)
 	}
 
 	/* Suspend because a resume will happen in raid_resume() */
-	if (!mddev->suspended)
-		mddev_suspend(mddev);
+	set_bit(RT_FLAG_RS_SUSPENDED, &rs->runtime_flags);
+	mddev_suspend(mddev);
 
 	/*
 	 * Now reshape got set up, update superblocks to
@@ -3883,13 +3886,13 @@ static void raid_resume(struct dm_target *ti)
 	if (!(rs->ctr_flags & RESUME_STAY_FROZEN_FLAGS))
 		clear_bit(MD_RECOVERY_FROZEN, &mddev->recovery);
 
-	if (mddev->suspended)
+	if (test_and_clear_bit(RT_FLAG_RS_SUSPENDED, &rs->runtime_flags))
 		mddev_resume(mddev);
 }
 
 static struct target_type raid_target = {
 	.name = "raid",
-	.version = {1, 11, 1},
+	.version = {1, 12, 1},
 	.module = THIS_MODULE,
 	.ctr = raid_ctr,
 	.dtr = raid_dtr,
diff --git a/drivers/md/dm-table.c b/drivers/md/dm-table.c
index a39bcd9b982a..28a4071cdf85 100644
--- a/drivers/md/dm-table.c
+++ b/drivers/md/dm-table.c
@@ -20,6 +20,7 @@
 #include <linux/atomic.h>
 #include <linux/blk-mq.h>
 #include <linux/mount.h>
+#include <linux/dax.h>
 
 #define DM_MSG_PREFIX "table"
 
@@ -1630,6 +1631,37 @@ static bool dm_table_supports_flush(struct dm_table *t, unsigned long flush)
 	return false;
 }
 
+static int device_dax_write_cache_enabled(struct dm_target *ti,
+					  struct dm_dev *dev, sector_t start,
+					  sector_t len, void *data)
+{
+	struct dax_device *dax_dev = dev->dax_dev;
+
+	if (!dax_dev)
+		return false;
+
+	if (dax_write_cache_enabled(dax_dev))
+		return true;
+	return false;
+}
+
+static int dm_table_supports_dax_write_cache(struct dm_table *t)
+{
+	struct dm_target *ti;
+	unsigned i;
+
+	for (i = 0; i < dm_table_get_num_targets(t); i++) {
+		ti = dm_table_get_target(t, i);
+
+		if (ti->type->iterate_devices &&
+		    ti->type->iterate_devices(ti,
+				device_dax_write_cache_enabled, NULL))
+			return true;
+	}
+
+	return false;
+}
+
 static int device_is_nonrot(struct dm_target *ti, struct dm_dev *dev,
 			    sector_t start, sector_t len, void *data)
 {
@@ -1785,6 +1817,9 @@ void dm_table_set_restrictions(struct dm_table *t, struct request_queue *q,
 	}
 	blk_queue_write_cache(q, wc, fua);
 
+	if (dm_table_supports_dax_write_cache(t))
+		dax_write_cache(t->md->dax_dev, true);
+
 	/* Ensure that all underlying devices are non-rotational. */
 	if (dm_table_all_devices_attribute(t, device_is_nonrot))
 		queue_flag_set_unlocked(QUEUE_FLAG_NONROT, q);
diff --git a/drivers/md/dm-verity-fec.c b/drivers/md/dm-verity-fec.c
index 504ba3fa328b..e13f90832b6b 100644
--- a/drivers/md/dm-verity-fec.c
+++ b/drivers/md/dm-verity-fec.c
@@ -308,19 +308,14 @@ static int fec_alloc_bufs(struct dm_verity *v, struct dm_verity_fec_io *fio)
 {
 	unsigned n;
 
-	if (!fio->rs) {
-		fio->rs = mempool_alloc(v->fec->rs_pool, 0);
-		if (unlikely(!fio->rs)) {
-			DMERR("failed to allocate RS");
-			return -ENOMEM;
-		}
-	}
+	if (!fio->rs)
+		fio->rs = mempool_alloc(v->fec->rs_pool, GFP_NOIO);
 
 	fec_for_each_prealloc_buffer(n) {
 		if (fio->bufs[n])
 			continue;
 
-		fio->bufs[n] = mempool_alloc(v->fec->prealloc_pool, GFP_NOIO);
+		fio->bufs[n] = mempool_alloc(v->fec->prealloc_pool, GFP_NOWAIT);
 		if (unlikely(!fio->bufs[n])) {
 			DMERR("failed to allocate FEC buffer");
 			return -ENOMEM;
@@ -332,22 +327,16 @@ static int fec_alloc_bufs(struct dm_verity *v, struct dm_verity_fec_io *fio)
 		if (fio->bufs[n])
 			continue;
 
-		fio->bufs[n] = mempool_alloc(v->fec->extra_pool, GFP_NOIO);
+		fio->bufs[n] = mempool_alloc(v->fec->extra_pool, GFP_NOWAIT);
 		/* we can manage with even one buffer if necessary */
 		if (unlikely(!fio->bufs[n]))
 			break;
 	}
 	fio->nbufs = n;
 
-	if (!fio->output) {
+	if (!fio->output)
 		fio->output = mempool_alloc(v->fec->output_pool, GFP_NOIO);
 
-		if (!fio->output) {
-			DMERR("failed to allocate FEC page");
-			return -ENOMEM;
-		}
-	}
-
 	return 0;
 }
 
diff --git a/drivers/md/dm-zoned-metadata.c b/drivers/md/dm-zoned-metadata.c
index 884ff7c170a0..a4fa2ada6883 100644
--- a/drivers/md/dm-zoned-metadata.c
+++ b/drivers/md/dm-zoned-metadata.c
@@ -624,7 +624,7 @@ static int dmz_write_sb(struct dmz_metadata *zmd, unsigned int set)
 
 	ret = dmz_rdwr_block(zmd, REQ_OP_WRITE, block, mblk->page);
 	if (ret == 0)
-		ret = blkdev_issue_flush(zmd->dev->bdev, GFP_KERNEL, NULL);
+		ret = blkdev_issue_flush(zmd->dev->bdev, GFP_NOIO, NULL);
 
 	return ret;
 }
@@ -658,7 +658,7 @@ static int dmz_write_dirty_mblocks(struct dmz_metadata *zmd,
 
 	/* Flush drive cache (this will also sync data) */
 	if (ret == 0)
-		ret = blkdev_issue_flush(zmd->dev->bdev, GFP_KERNEL, NULL);
+		ret = blkdev_issue_flush(zmd->dev->bdev, GFP_NOIO, NULL);
 
 	return ret;
 }
@@ -722,7 +722,7 @@ int dmz_flush_metadata(struct dmz_metadata *zmd)
 
 	/* If there are no dirty metadata blocks, just flush the device cache */
 	if (list_empty(&write_list)) {
-		ret = blkdev_issue_flush(zmd->dev->bdev, GFP_KERNEL, NULL);
+		ret = blkdev_issue_flush(zmd->dev->bdev, GFP_NOIO, NULL);
 		goto out;
 	}
 
@@ -927,7 +927,7 @@ static int dmz_recover_mblocks(struct dmz_metadata *zmd, unsigned int dst_set)
 			(zmd->nr_meta_zones << zmd->dev->zone_nr_blocks_shift);
 	}
 
-	page = alloc_page(GFP_KERNEL);
+	page = alloc_page(GFP_NOIO);
 	if (!page)
 		return -ENOMEM;
 
@@ -1183,7 +1183,7 @@ static int dmz_update_zone(struct dmz_metadata *zmd, struct dm_zone *zone)
 
 	/* Get zone information from disk */
 	ret = blkdev_report_zones(zmd->dev->bdev, dmz_start_sect(zmd, zone),
-				  &blkz, &nr_blkz, GFP_KERNEL);
+				  &blkz, &nr_blkz, GFP_NOIO);
 	if (ret) {
 		dmz_dev_err(zmd->dev, "Get zone %u report failed",
 			    dmz_id(zmd, zone));
@@ -1257,7 +1257,7 @@ static int dmz_reset_zone(struct dmz_metadata *zmd, struct dm_zone *zone)
 
 		ret = blkdev_reset_zones(dev->bdev,
 					 dmz_start_sect(zmd, zone),
-					 dev->zone_nr_sectors, GFP_KERNEL);
+					 dev->zone_nr_sectors, GFP_NOIO);
 		if (ret) {
 			dmz_dev_err(dev, "Reset zone %u failed %d",
 				    dmz_id(zmd, zone), ret);
diff --git a/drivers/md/dm-zoned-reclaim.c b/drivers/md/dm-zoned-reclaim.c
index 05c0a126f5c8..44a119e12f1a 100644
--- a/drivers/md/dm-zoned-reclaim.c
+++ b/drivers/md/dm-zoned-reclaim.c
@@ -75,7 +75,7 @@ static int dmz_reclaim_align_wp(struct dmz_reclaim *zrc, struct dm_zone *zone,
 	nr_blocks = block - wp_block;
 	ret = blkdev_issue_zeroout(zrc->dev->bdev,
 				   dmz_start_sect(zmd, zone) + dmz_blk2sect(wp_block),
-				   dmz_blk2sect(nr_blocks), GFP_NOFS, false);
+				   dmz_blk2sect(nr_blocks), GFP_NOIO, 0);
 	if (ret) {
 		dmz_dev_err(zrc->dev,
 			    "Align zone %u wp %llu to %llu (wp+%u) blocks failed %d",
diff --git a/drivers/md/dm-zoned-target.c b/drivers/md/dm-zoned-target.c
index 2b538fa817f4..b08bbbd4d902 100644
--- a/drivers/md/dm-zoned-target.c
+++ b/drivers/md/dm-zoned-target.c
@@ -541,7 +541,7 @@ static void dmz_queue_chunk_work(struct dmz_target *dmz, struct bio *bio)
 		int ret;
 
 		/* Create a new chunk work */
-		cw = kmalloc(sizeof(struct dm_chunk_work), GFP_NOFS);
+		cw = kmalloc(sizeof(struct dm_chunk_work), GFP_NOIO);
 		if (!cw)
 			goto out;
 
@@ -588,7 +588,7 @@ static int dmz_map(struct dm_target *ti, struct bio *bio)
 
 	bio->bi_bdev = dev->bdev;
 
-	if (!nr_sectors && (bio_op(bio) != REQ_OP_FLUSH) && (bio_op(bio) != REQ_OP_WRITE))
+	if (!nr_sectors && bio_op(bio) != REQ_OP_WRITE)
 		return DM_MAPIO_REMAPPED;
 
 	/* The BIO should be block aligned */
@@ -603,7 +603,7 @@ static int dmz_map(struct dm_target *ti, struct bio *bio)
 	bioctx->status = BLK_STS_OK;
 
 	/* Set the BIO pending in the flush list */
-	if (bio_op(bio) == REQ_OP_FLUSH || (!nr_sectors && bio_op(bio) == REQ_OP_WRITE)) {
+	if (!nr_sectors && bio_op(bio) == REQ_OP_WRITE) {
 		spin_lock(&dmz->flush_lock);
 		bio_list_add(&dmz->flush_list, bio);
 		spin_unlock(&dmz->flush_lock);
@@ -785,7 +785,7 @@ static int dmz_ctr(struct dm_target *ti, unsigned int argc, char **argv)
 
 	/* Chunk BIO work */
 	mutex_init(&dmz->chunk_lock);
-	INIT_RADIX_TREE(&dmz->chunk_rxtree, GFP_NOFS);
+	INIT_RADIX_TREE(&dmz->chunk_rxtree, GFP_KERNEL);
 	dmz->chunk_wq = alloc_workqueue("dmz_cwq_%s", WQ_MEM_RECLAIM | WQ_UNBOUND,
 					0, dev->name);
 	if (!dmz->chunk_wq) {
diff --git a/drivers/md/md.c b/drivers/md/md.c
index 8cdca0296749..b01e458d31e9 100644
--- a/drivers/md/md.c
+++ b/drivers/md/md.c
@@ -2287,7 +2287,7 @@ static void export_array(struct mddev *mddev)
 
 static bool set_in_sync(struct mddev *mddev)
 {
-	WARN_ON_ONCE(!spin_is_locked(&mddev->lock));
+	WARN_ON_ONCE(NR_CPUS != 1 && !spin_is_locked(&mddev->lock));
 	if (!mddev->in_sync) {
 		mddev->sync_checkers++;
 		spin_unlock(&mddev->lock);
@@ -7996,7 +7996,7 @@ bool md_write_start(struct mddev *mddev, struct bio *bi)
 	if (mddev->safemode == 1)
 		mddev->safemode = 0;
 	/* sync_checkers is always 0 when writes_pending is in per-cpu mode */
-	if (mddev->in_sync || !mddev->sync_checkers) {
+	if (mddev->in_sync || mddev->sync_checkers) {
 		spin_lock(&mddev->lock);
 		if (mddev->in_sync) {
 			mddev->in_sync = 0;
@@ -8656,6 +8656,9 @@ void md_check_recovery(struct mddev *mddev)
 	if (mddev_trylock(mddev)) {
 		int spares = 0;
 
+		if (!mddev->external && mddev->safemode == 1)
+			mddev->safemode = 0;
+
 		if (mddev->ro) {
 			struct md_rdev *rdev;
 			if (!mddev->external && mddev->in_sync)
diff --git a/drivers/md/md.h b/drivers/md/md.h
index 991f0fe2dcc6..09db03455801 100644
--- a/drivers/md/md.h
+++ b/drivers/md/md.h
@@ -134,7 +134,9 @@ enum flag_bits {
 	Faulty,			/* device is known to have a fault */
 	In_sync,		/* device is in_sync with rest of array */
 	Bitmap_sync,		/* ..actually, not quite In_sync.  Need a
-				 * bitmap-based recovery to get fully in sync
+				 * bitmap-based recovery to get fully in sync.
+				 * The bit is only meaningful before device
+				 * has been passed to pers->hot_add_disk.
 				 */
 	WriteMostly,		/* Avoid reading if at all possible */
 	AutoDetected,		/* added by auto-detect */
@@ -729,58 +731,4 @@ static inline void mddev_check_write_zeroes(struct mddev *mddev, struct bio *bio
 	    !bdev_get_queue(bio->bi_bdev)->limits.max_write_zeroes_sectors)
 		mddev->queue->limits.max_write_zeroes_sectors = 0;
 }
-
-/* Maximum size of each resync request */
-#define RESYNC_BLOCK_SIZE (64*1024)
-#define RESYNC_PAGES ((RESYNC_BLOCK_SIZE + PAGE_SIZE-1) / PAGE_SIZE)
-
-/* for managing resync I/O pages */
-struct resync_pages {
-	unsigned	idx;	/* for get/put page from the pool */
-	void		*raid_bio;
-	struct page	*pages[RESYNC_PAGES];
-};
-
-static inline int resync_alloc_pages(struct resync_pages *rp,
-				     gfp_t gfp_flags)
-{
-	int i;
-
-	for (i = 0; i < RESYNC_PAGES; i++) {
-		rp->pages[i] = alloc_page(gfp_flags);
-		if (!rp->pages[i])
-			goto out_free;
-	}
-
-	return 0;
-
-out_free:
-	while (--i >= 0)
-		put_page(rp->pages[i]);
-	return -ENOMEM;
-}
-
-static inline void resync_free_pages(struct resync_pages *rp)
-{
-	int i;
-
-	for (i = 0; i < RESYNC_PAGES; i++)
-		put_page(rp->pages[i]);
-}
-
-static inline void resync_get_all_pages(struct resync_pages *rp)
-{
-	int i;
-
-	for (i = 0; i < RESYNC_PAGES; i++)
-		get_page(rp->pages[i]);
-}
-
-static inline struct page *resync_fetch_page(struct resync_pages *rp,
-					     unsigned idx)
-{
-	if (WARN_ON_ONCE(idx >= RESYNC_PAGES))
-		return NULL;
-	return rp->pages[idx];
-}
 #endif /* _MD_MD_H */
diff --git a/drivers/md/raid1-10.c b/drivers/md/raid1-10.c
new file mode 100644
index 000000000000..9f2670b45f31
--- /dev/null
+++ b/drivers/md/raid1-10.c
@@ -0,0 +1,81 @@
+/* Maximum size of each resync request */
+#define RESYNC_BLOCK_SIZE (64*1024)
+#define RESYNC_PAGES ((RESYNC_BLOCK_SIZE + PAGE_SIZE-1) / PAGE_SIZE)
+
+/* for managing resync I/O pages */
+struct resync_pages {
+	void		*raid_bio;
+	struct page	*pages[RESYNC_PAGES];
+};
+
+static inline int resync_alloc_pages(struct resync_pages *rp,
+				     gfp_t gfp_flags)
+{
+	int i;
+
+	for (i = 0; i < RESYNC_PAGES; i++) {
+		rp->pages[i] = alloc_page(gfp_flags);
+		if (!rp->pages[i])
+			goto out_free;
+	}
+
+	return 0;
+
+out_free:
+	while (--i >= 0)
+		put_page(rp->pages[i]);
+	return -ENOMEM;
+}
+
+static inline void resync_free_pages(struct resync_pages *rp)
+{
+	int i;
+
+	for (i = 0; i < RESYNC_PAGES; i++)
+		put_page(rp->pages[i]);
+}
+
+static inline void resync_get_all_pages(struct resync_pages *rp)
+{
+	int i;
+
+	for (i = 0; i < RESYNC_PAGES; i++)
+		get_page(rp->pages[i]);
+}
+
+static inline struct page *resync_fetch_page(struct resync_pages *rp,
+					     unsigned idx)
+{
+	if (WARN_ON_ONCE(idx >= RESYNC_PAGES))
+		return NULL;
+	return rp->pages[idx];
+}
+
+/*
+ * 'strct resync_pages' stores actual pages used for doing the resync
+ *  IO, and it is per-bio, so make .bi_private points to it.
+ */
+static inline struct resync_pages *get_resync_pages(struct bio *bio)
+{
+	return bio->bi_private;
+}
+
+/* generally called after bio_reset() for reseting bvec */
+static void md_bio_reset_resync_pages(struct bio *bio, struct resync_pages *rp,
+			       int size)
+{
+	int idx = 0;
+
+	/* initialize bvec table again */
+	do {
+		struct page *page = resync_fetch_page(rp, idx);
+		int len = min_t(int, size, PAGE_SIZE);
+
+		/*
+		 * won't fail because the vec table is big
+		 * enough to hold all these pages
+		 */
+		bio_add_page(bio, page, len, 0);
+		size -= len;
+	} while (idx++ < RESYNC_PAGES && size > 0);
+}
diff --git a/drivers/md/raid1.c b/drivers/md/raid1.c
index 3febfc8391fb..f50958ded9f0 100644
--- a/drivers/md/raid1.c
+++ b/drivers/md/raid1.c
@@ -81,14 +81,7 @@ static void lower_barrier(struct r1conf *conf, sector_t sector_nr);
 #define raid1_log(md, fmt, args...)				\
 	do { if ((md)->queue) blk_add_trace_msg((md)->queue, "raid1 " fmt, ##args); } while (0)
 
-/*
- * 'strct resync_pages' stores actual pages used for doing the resync
- *  IO, and it is per-bio, so make .bi_private points to it.
- */
-static inline struct resync_pages *get_resync_pages(struct bio *bio)
-{
-	return bio->bi_private;
-}
+#include "raid1-10.c"
 
 /*
  * for resync bio, r1bio pointer can be retrieved from the per-bio
@@ -170,7 +163,6 @@ static void * r1buf_pool_alloc(gfp_t gfp_flags, void *data)
 			resync_get_all_pages(rp);
 		}
 
-		rp->idx = 0;
 		rp->raid_bio = r1_bio;
 		bio->bi_private = rp;
 	}
@@ -492,10 +484,6 @@ static void raid1_end_write_request(struct bio *bio)
 	}
 
 	if (behind) {
-		/* we release behind master bio when all write are done */
-		if (r1_bio->behind_master_bio == bio)
-			to_put = NULL;
-
 		if (test_bit(WriteMostly, &rdev->flags))
 			atomic_dec(&r1_bio->behind_remaining);
 
@@ -802,8 +790,7 @@ static void flush_bio_list(struct r1conf *conf, struct bio *bio)
 		bio->bi_next = NULL;
 		bio->bi_bdev = rdev->bdev;
 		if (test_bit(Faulty, &rdev->flags)) {
-			bio->bi_status = BLK_STS_IOERR;
-			bio_endio(bio);
+			bio_io_error(bio);
 		} else if (unlikely((bio_op(bio) == REQ_OP_DISCARD) &&
 				    !blk_queue_discard(bdev_get_queue(bio->bi_bdev))))
 			/* Just ignore it */
@@ -1088,7 +1075,7 @@ static void unfreeze_array(struct r1conf *conf)
 	wake_up(&conf->wait_barrier);
 }
 
-static struct bio *alloc_behind_master_bio(struct r1bio *r1_bio,
+static void alloc_behind_master_bio(struct r1bio *r1_bio,
 					   struct bio *bio)
 {
 	int size = bio->bi_iter.bi_size;
@@ -1098,11 +1085,13 @@ static struct bio *alloc_behind_master_bio(struct r1bio *r1_bio,
 
 	behind_bio = bio_alloc_mddev(GFP_NOIO, vcnt, r1_bio->mddev);
 	if (!behind_bio)
-		goto fail;
+		return;
 
 	/* discard op, we don't support writezero/writesame yet */
-	if (!bio_has_data(bio))
+	if (!bio_has_data(bio)) {
+		behind_bio->bi_iter.bi_size = size;
 		goto skip_copy;
+	}
 
 	while (i < vcnt && size) {
 		struct page *page;
@@ -1123,14 +1112,13 @@ skip_copy:
 	r1_bio->behind_master_bio = behind_bio;;
 	set_bit(R1BIO_BehindIO, &r1_bio->state);
 
-	return behind_bio;
+	return;
 
 free_pages:
 	pr_debug("%dB behind alloc failed, doing sync I/O\n",
 		 bio->bi_iter.bi_size);
 	bio_free_pages(behind_bio);
-fail:
-	return behind_bio;
+	bio_put(behind_bio);
 }
 
 struct raid1_plug_cb {
@@ -1483,7 +1471,7 @@ static void raid1_write_request(struct mddev *mddev, struct bio *bio,
 			    (atomic_read(&bitmap->behind_writes)
 			     < mddev->bitmap_info.max_write_behind) &&
 			    !waitqueue_active(&bitmap->behind_wait)) {
-				mbio = alloc_behind_master_bio(r1_bio, bio);
+				alloc_behind_master_bio(r1_bio, bio);
 			}
 
 			bitmap_startwrite(bitmap, r1_bio->sector,
@@ -1493,14 +1481,11 @@ static void raid1_write_request(struct mddev *mddev, struct bio *bio,
 			first_clone = 0;
 		}
 
-		if (!mbio) {
-			if (r1_bio->behind_master_bio)
-				mbio = bio_clone_fast(r1_bio->behind_master_bio,
-						      GFP_NOIO,
-						      mddev->bio_set);
-			else
-				mbio = bio_clone_fast(bio, GFP_NOIO, mddev->bio_set);
-		}
+		if (r1_bio->behind_master_bio)
+			mbio = bio_clone_fast(r1_bio->behind_master_bio,
+					      GFP_NOIO, mddev->bio_set);
+		else
+			mbio = bio_clone_fast(bio, GFP_NOIO, mddev->bio_set);
 
 		if (r1_bio->behind_master_bio) {
 			if (test_bit(WriteMostly, &conf->mirrors[i].rdev->flags))
@@ -2086,10 +2071,7 @@ static void process_checks(struct r1bio *r1_bio)
 	/* Fix variable parts of all bios */
 	vcnt = (r1_bio->sectors + PAGE_SIZE / 512 - 1) >> (PAGE_SHIFT - 9);
 	for (i = 0; i < conf->raid_disks * 2; i++) {
-		int j;
-		int size;
 		blk_status_t status;
-		struct bio_vec *bi;
 		struct bio *b = r1_bio->bios[i];
 		struct resync_pages *rp = get_resync_pages(b);
 		if (b->bi_end_io != end_sync_read)
@@ -2098,8 +2080,6 @@ static void process_checks(struct r1bio *r1_bio)
 		status = b->bi_status;
 		bio_reset(b);
 		b->bi_status = status;
-		b->bi_vcnt = vcnt;
-		b->bi_iter.bi_size = r1_bio->sectors << 9;
 		b->bi_iter.bi_sector = r1_bio->sector +
 			conf->mirrors[i].rdev->data_offset;
 		b->bi_bdev = conf->mirrors[i].rdev->bdev;
@@ -2107,15 +2087,8 @@ static void process_checks(struct r1bio *r1_bio)
 		rp->raid_bio = r1_bio;
 		b->bi_private = rp;
 
-		size = b->bi_iter.bi_size;
-		bio_for_each_segment_all(bi, b, j) {
-			bi->bv_offset = 0;
-			if (size > PAGE_SIZE)
-				bi->bv_len = PAGE_SIZE;
-			else
-				bi->bv_len = size;
-			size -= PAGE_SIZE;
-		}
+		/* initialize bvec table again */
+		md_bio_reset_resync_pages(b, rp, r1_bio->sectors << 9);
 	}
 	for (primary = 0; primary < conf->raid_disks * 2; primary++)
 		if (r1_bio->bios[primary]->bi_end_io == end_sync_read &&
@@ -2366,8 +2339,6 @@ static int narrow_write_error(struct r1bio *r1_bio, int i)
 			wbio = bio_clone_fast(r1_bio->behind_master_bio,
 					      GFP_NOIO,
 					      mddev->bio_set);
-			/* We really need a _all clone */
-			wbio->bi_iter = (struct bvec_iter){ 0 };
 		} else {
 			wbio = bio_clone_fast(r1_bio->master_bio, GFP_NOIO,
 					      mddev->bio_set);
@@ -2619,6 +2590,7 @@ static sector_t raid1_sync_request(struct mddev *mddev, sector_t sector_nr,
 	int good_sectors = RESYNC_SECTORS;
 	int min_bad = 0; /* number of sectors that are bad in all devices */
 	int idx = sector_to_idx(sector_nr);
+	int page_idx = 0;
 
 	if (!conf->r1buf_pool)
 		if (init_resync(conf))
@@ -2846,7 +2818,7 @@ static sector_t raid1_sync_request(struct mddev *mddev, sector_t sector_nr,
 			bio = r1_bio->bios[i];
 			rp = get_resync_pages(bio);
 			if (bio->bi_end_io) {
-				page = resync_fetch_page(rp, rp->idx++);
+				page = resync_fetch_page(rp, page_idx);
 
 				/*
 				 * won't fail because the vec table is big
@@ -2858,7 +2830,7 @@ static sector_t raid1_sync_request(struct mddev *mddev, sector_t sector_nr,
 		nr_sectors += len>>9;
 		sector_nr += len>>9;
 		sync_blocks -= (len>>9);
-	} while (get_resync_pages(r1_bio->bios[disk]->bi_private)->idx < RESYNC_PAGES);
+	} while (++page_idx < RESYNC_PAGES);
 
 	r1_bio->sectors = nr_sectors;
 
diff --git a/drivers/md/raid10.c b/drivers/md/raid10.c
index 5026e7ad51d3..f55d4cc085f6 100644
--- a/drivers/md/raid10.c
+++ b/drivers/md/raid10.c
@@ -110,14 +110,7 @@ static void end_reshape(struct r10conf *conf);
 #define raid10_log(md, fmt, args...)				\
 	do { if ((md)->queue) blk_add_trace_msg((md)->queue, "raid10 " fmt, ##args); } while (0)
 
-/*
- * 'strct resync_pages' stores actual pages used for doing the resync
- *  IO, and it is per-bio, so make .bi_private points to it.
- */
-static inline struct resync_pages *get_resync_pages(struct bio *bio)
-{
-	return bio->bi_private;
-}
+#include "raid1-10.c"
 
 /*
  * for resync bio, r10bio pointer can be retrieved from the per-bio
@@ -221,7 +214,6 @@ static void * r10buf_pool_alloc(gfp_t gfp_flags, void *data)
 			resync_get_all_pages(rp);
 		}
 
-		rp->idx = 0;
 		rp->raid_bio = r10_bio;
 		bio->bi_private = rp;
 		if (rbio) {
@@ -913,8 +905,7 @@ static void flush_pending_writes(struct r10conf *conf)
 			bio->bi_next = NULL;
 			bio->bi_bdev = rdev->bdev;
 			if (test_bit(Faulty, &rdev->flags)) {
-				bio->bi_status = BLK_STS_IOERR;
-				bio_endio(bio);
+				bio_io_error(bio);
 			} else if (unlikely((bio_op(bio) ==  REQ_OP_DISCARD) &&
 					    !blk_queue_discard(bdev_get_queue(bio->bi_bdev))))
 				/* Just ignore it */
@@ -1098,8 +1089,7 @@ static void raid10_unplug(struct blk_plug_cb *cb, bool from_schedule)
 		bio->bi_next = NULL;
 		bio->bi_bdev = rdev->bdev;
 		if (test_bit(Faulty, &rdev->flags)) {
-			bio->bi_status = BLK_STS_IOERR;
-			bio_endio(bio);
+			bio_io_error(bio);
 		} else if (unlikely((bio_op(bio) ==  REQ_OP_DISCARD) &&
 				    !blk_queue_discard(bdev_get_queue(bio->bi_bdev))))
 			/* Just ignore it */
@@ -2087,8 +2077,8 @@ static void sync_request_write(struct mddev *mddev, struct r10bio *r10_bio)
 		rp = get_resync_pages(tbio);
 		bio_reset(tbio);
 
-		tbio->bi_vcnt = vcnt;
-		tbio->bi_iter.bi_size = fbio->bi_iter.bi_size;
+		md_bio_reset_resync_pages(tbio, rp, fbio->bi_iter.bi_size);
+
 		rp->raid_bio = r10_bio;
 		tbio->bi_private = rp;
 		tbio->bi_iter.bi_sector = r10_bio->devs[i].addr;
@@ -2853,6 +2843,7 @@ static sector_t raid10_sync_request(struct mddev *mddev, sector_t sector_nr,
 	sector_t sectors_skipped = 0;
 	int chunks_skipped = 0;
 	sector_t chunk_mask = conf->geo.chunk_mask;
+	int page_idx = 0;
 
 	if (!conf->r10buf_pool)
 		if (init_resync(conf))
@@ -3355,7 +3346,7 @@ static sector_t raid10_sync_request(struct mddev *mddev, sector_t sector_nr,
 			break;
 		for (bio= biolist ; bio ; bio=bio->bi_next) {
 			struct resync_pages *rp = get_resync_pages(bio);
-			page = resync_fetch_page(rp, rp->idx++);
+			page = resync_fetch_page(rp, page_idx);
 			/*
 			 * won't fail because the vec table is big enough
 			 * to hold all these pages
@@ -3364,7 +3355,7 @@ static sector_t raid10_sync_request(struct mddev *mddev, sector_t sector_nr,
 		}
 		nr_sectors += len>>9;
 		sector_nr += len>>9;
-	} while (get_resync_pages(biolist)->idx < RESYNC_PAGES);
+	} while (++page_idx < RESYNC_PAGES);
 	r10_bio->sectors = nr_sectors;
 
 	while (biolist) {
diff --git a/drivers/md/raid5-cache.c b/drivers/md/raid5-cache.c
index bfa1e907c472..2dcbafa8e66c 100644
--- a/drivers/md/raid5-cache.c
+++ b/drivers/md/raid5-cache.c
@@ -236,9 +236,10 @@ struct r5l_io_unit {
 	bool need_split_bio;
 	struct bio *split_bio;
 
-	unsigned int has_flush:1;      /* include flush request */
-	unsigned int has_fua:1;        /* include fua request */
-	unsigned int has_null_flush:1; /* include empty flush request */
+	unsigned int has_flush:1;		/* include flush request */
+	unsigned int has_fua:1;			/* include fua request */
+	unsigned int has_null_flush:1;		/* include null flush request */
+	unsigned int has_flush_payload:1;	/* include flush payload  */
 	/*
 	 * io isn't sent yet, flush/fua request can only be submitted till it's
 	 * the first IO in running_ios list
@@ -571,6 +572,8 @@ static void r5l_log_endio(struct bio *bio)
 	struct r5l_io_unit *io_deferred;
 	struct r5l_log *log = io->log;
 	unsigned long flags;
+	bool has_null_flush;
+	bool has_flush_payload;
 
 	if (bio->bi_status)
 		md_error(log->rdev->mddev, log->rdev);
@@ -580,6 +583,16 @@ static void r5l_log_endio(struct bio *bio)
 
 	spin_lock_irqsave(&log->io_list_lock, flags);
 	__r5l_set_io_unit_state(io, IO_UNIT_IO_END);
+
+	/*
+	 * if the io doesn't not have null_flush or flush payload,
+	 * it is not safe to access it after releasing io_list_lock.
+	 * Therefore, it is necessary to check the condition with
+	 * the lock held.
+	 */
+	has_null_flush = io->has_null_flush;
+	has_flush_payload = io->has_flush_payload;
+
 	if (log->need_cache_flush && !list_empty(&io->stripe_list))
 		r5l_move_to_end_ios(log);
 	else
@@ -600,19 +613,23 @@ static void r5l_log_endio(struct bio *bio)
 	if (log->need_cache_flush)
 		md_wakeup_thread(log->rdev->mddev->thread);
 
-	if (io->has_null_flush) {
+	/* finish flush only io_unit and PAYLOAD_FLUSH only io_unit */
+	if (has_null_flush) {
 		struct bio *bi;
 
 		WARN_ON(bio_list_empty(&io->flush_barriers));
 		while ((bi = bio_list_pop(&io->flush_barriers)) != NULL) {
 			bio_endio(bi);
-			atomic_dec(&io->pending_stripe);
+			if (atomic_dec_and_test(&io->pending_stripe)) {
+				__r5l_stripe_write_finished(io);
+				return;
+			}
 		}
 	}
-
-	/* finish flush only io_unit and PAYLOAD_FLUSH only io_unit */
-	if (atomic_read(&io->pending_stripe) == 0)
-		__r5l_stripe_write_finished(io);
+	/* decrease pending_stripe for flush payload */
+	if (has_flush_payload)
+		if (atomic_dec_and_test(&io->pending_stripe))
+			__r5l_stripe_write_finished(io);
 }
 
 static void r5l_do_submit_io(struct r5l_log *log, struct r5l_io_unit *io)
@@ -881,6 +898,11 @@ static void r5l_append_flush_payload(struct r5l_log *log, sector_t sect)
 	payload->size = cpu_to_le32(sizeof(__le64));
 	payload->flush_stripes[0] = cpu_to_le64(sect);
 	io->meta_offset += meta_size;
+	/* multiple flush payloads count as one pending_stripe */
+	if (!io->has_flush_payload) {
+		io->has_flush_payload = 1;
+		atomic_inc(&io->pending_stripe);
+	}
 	mutex_unlock(&log->io_mutex);
 }
 
@@ -2540,23 +2562,32 @@ static ssize_t r5c_journal_mode_show(struct mddev *mddev, char *page)
  */
 int r5c_journal_mode_set(struct mddev *mddev, int mode)
 {
-	struct r5conf *conf = mddev->private;
-	struct r5l_log *log = conf->log;
-
-	if (!log)
-		return -ENODEV;
+	struct r5conf *conf;
+	int err;
 
 	if (mode < R5C_JOURNAL_MODE_WRITE_THROUGH ||
 	    mode > R5C_JOURNAL_MODE_WRITE_BACK)
 		return -EINVAL;
 
+	err = mddev_lock(mddev);
+	if (err)
+		return err;
+	conf = mddev->private;
+	if (!conf || !conf->log) {
+		mddev_unlock(mddev);
+		return -ENODEV;
+	}
+
 	if (raid5_calc_degraded(conf) > 0 &&
-	    mode == R5C_JOURNAL_MODE_WRITE_BACK)
+	    mode == R5C_JOURNAL_MODE_WRITE_BACK) {
+		mddev_unlock(mddev);
 		return -EINVAL;
+	}
 
 	mddev_suspend(mddev);
 	conf->log->r5c_journal_mode = mode;
 	mddev_resume(mddev);
+	mddev_unlock(mddev);
 
 	pr_debug("md/raid:%s: setting r5c cache mode to %d: %s\n",
 		 mdname(mddev), mode, r5c_journal_mode_str[mode]);
diff --git a/drivers/md/raid5-ppl.c b/drivers/md/raid5-ppl.c
index 77cce3573aa8..44ad5baf3206 100644
--- a/drivers/md/raid5-ppl.c
+++ b/drivers/md/raid5-ppl.c
@@ -1150,7 +1150,7 @@ int ppl_init_log(struct r5conf *conf)
 		goto err;
 	}
 
-	ppl_conf->bs = bioset_create(conf->raid_disks, 0, 0);
+	ppl_conf->bs = bioset_create(conf->raid_disks, 0, BIOSET_NEED_BVECS);
 	if (!ppl_conf->bs) {
 		ret = -ENOMEM;
 		goto err;
diff --git a/drivers/md/raid5.c b/drivers/md/raid5.c
index 2ceb338b094b..0fc2748aaf95 100644
--- a/drivers/md/raid5.c
+++ b/drivers/md/raid5.c
@@ -3381,9 +3381,8 @@ handle_failed_stripe(struct r5conf *conf, struct stripe_head *sh,
 			sh->dev[i].sector + STRIPE_SECTORS) {
 			struct bio *nextbi = r5_next_bio(bi, sh->dev[i].sector);
 
-			bi->bi_status = BLK_STS_IOERR;
 			md_write_end(conf->mddev);
-			bio_endio(bi);
+			bio_io_error(bi);
 			bi = nextbi;
 		}
 		if (bitmap_end)
@@ -3403,9 +3402,8 @@ handle_failed_stripe(struct r5conf *conf, struct stripe_head *sh,
 		       sh->dev[i].sector + STRIPE_SECTORS) {
 			struct bio *bi2 = r5_next_bio(bi, sh->dev[i].sector);
 
-			bi->bi_status = BLK_STS_IOERR;
 			md_write_end(conf->mddev);
-			bio_endio(bi);
+			bio_io_error(bi);
 			bi = bi2;
 		}
 
@@ -3429,8 +3427,7 @@ handle_failed_stripe(struct r5conf *conf, struct stripe_head *sh,
 				struct bio *nextbi =
 					r5_next_bio(bi, sh->dev[i].sector);
 
-				bi->bi_status = BLK_STS_IOERR;
-				bio_endio(bi);
+				bio_io_error(bi);
 				bi = nextbi;
 			}
 		}
@@ -6237,6 +6234,8 @@ static void raid5_do_work(struct work_struct *work)
 	pr_debug("%d stripes handled\n", handled);
 
 	spin_unlock_irq(&conf->device_lock);
+
+	async_tx_issue_pending_all();
 	blk_finish_plug(&plug);
 
 	pr_debug("--- raid5worker inactive\n");
@@ -7951,12 +7950,10 @@ static void end_reshape(struct r5conf *conf)
 {
 
 	if (!test_bit(MD_RECOVERY_INTR, &conf->mddev->recovery)) {
-		struct md_rdev *rdev;
 
 		spin_lock_irq(&conf->device_lock);
 		conf->previous_raid_disks = conf->raid_disks;
-		rdev_for_each(rdev, conf->mddev)
-			rdev->data_offset = rdev->new_data_offset;
+		md_finish_reshape(conf->mddev);
 		smp_wmb();
 		conf->reshape_progress = MaxSector;
 		conf->mddev->reshape_position = MaxSector;
diff --git a/drivers/media/cec/cec-adap.c b/drivers/media/cec/cec-adap.c
index bf45977b2823..d596b601ff42 100644
--- a/drivers/media/cec/cec-adap.c
+++ b/drivers/media/cec/cec-adap.c
@@ -559,7 +559,7 @@ EXPORT_SYMBOL_GPL(cec_transmit_done);
 
 void cec_transmit_attempt_done(struct cec_adapter *adap, u8 status)
 {
-	switch (status) {
+	switch (status & ~CEC_TX_STATUS_MAX_RETRIES) {
 	case CEC_TX_STATUS_OK:
 		cec_transmit_done(adap, status, 0, 0, 0, 0);
 		return;
diff --git a/drivers/media/cec/cec-notifier.c b/drivers/media/cec/cec-notifier.c
index 74dc1c32080e..08b619d0ea1e 100644
--- a/drivers/media/cec/cec-notifier.c
+++ b/drivers/media/cec/cec-notifier.c
@@ -87,6 +87,9 @@ EXPORT_SYMBOL_GPL(cec_notifier_put);
 
 void cec_notifier_set_phys_addr(struct cec_notifier *n, u16 pa)
 {
+	if (n == NULL)
+		return;
+
 	mutex_lock(&n->lock);
 	n->phys_addr = pa;
 	if (n->callback)
@@ -100,6 +103,9 @@ void cec_notifier_set_phys_addr_from_edid(struct cec_notifier *n,
 {
 	u16 pa = CEC_PHYS_ADDR_INVALID;
 
+	if (n == NULL)
+		return;
+
 	if (edid && edid->extensions)
 		pa = cec_get_edid_phys_addr((const u8 *)edid,
 				EDID_LENGTH * (edid->extensions + 1), NULL);
diff --git a/drivers/media/dvb-core/dvb_ca_en50221.c b/drivers/media/dvb-core/dvb_ca_en50221.c
index af694f2066a2..17970cdd55fa 100644
--- a/drivers/media/dvb-core/dvb_ca_en50221.c
+++ b/drivers/media/dvb-core/dvb_ca_en50221.c
@@ -349,7 +349,8 @@ static int dvb_ca_en50221_link_init(struct dvb_ca_private *ca, int slot)
 	/* read the buffer size from the CAM */
 	if ((ret = ca->pub->write_cam_control(ca->pub, slot, CTRLIF_COMMAND, IRQEN | CMDREG_SR)) != 0)
 		return ret;
-	if ((ret = dvb_ca_en50221_wait_if_status(ca, slot, STATUSREG_DA, HZ / 10)) != 0)
+	ret = dvb_ca_en50221_wait_if_status(ca, slot, STATUSREG_DA, HZ);
+	if (ret != 0)
 		return ret;
 	if ((ret = dvb_ca_en50221_read_data(ca, slot, buf, 2)) != 2)
 		return -EIO;
@@ -644,72 +645,101 @@ static int dvb_ca_en50221_read_data(struct dvb_ca_private *ca, int slot,
 		}
 		buf_free = dvb_ringbuffer_free(&ca->slot_info[slot].rx_buffer);
 
-		if (buf_free < (ca->slot_info[slot].link_buf_size + DVB_RINGBUFFER_PKTHDRSIZE)) {
+		if (buf_free < (ca->slot_info[slot].link_buf_size +
+				DVB_RINGBUFFER_PKTHDRSIZE)) {
 			status = -EAGAIN;
 			goto exit;
 		}
 	}
 
-	/* check if there is data available */
-	if ((status = ca->pub->read_cam_control(ca->pub, slot, CTRLIF_STATUS)) < 0)
-		goto exit;
-	if (!(status & STATUSREG_DA)) {
-		/* no data */
-		status = 0;
-		goto exit;
-	}
-
-	/* read the amount of data */
-	if ((status = ca->pub->read_cam_control(ca->pub, slot, CTRLIF_SIZE_HIGH)) < 0)
-		goto exit;
-	bytes_read = status << 8;
-	if ((status = ca->pub->read_cam_control(ca->pub, slot, CTRLIF_SIZE_LOW)) < 0)
-		goto exit;
-	bytes_read |= status;
+	if (ca->pub->read_data &&
+	    (ca->slot_info[slot].slot_state != DVB_CA_SLOTSTATE_LINKINIT)) {
+		if (ebuf == NULL)
+			status = ca->pub->read_data(ca->pub, slot, buf,
+						    sizeof(buf));
+		else
+			status = ca->pub->read_data(ca->pub, slot, buf, ecount);
+		if (status < 0)
+			return status;
+		bytes_read =  status;
+		if (status == 0)
+			goto exit;
+	} else {
 
-	/* check it will fit */
-	if (ebuf == NULL) {
-		if (bytes_read > ca->slot_info[slot].link_buf_size) {
-			pr_err("dvb_ca adapter %d: CAM tried to send a buffer larger than the link buffer size (%i > %i)!\n",
-			       ca->dvbdev->adapter->num, bytes_read,
-			       ca->slot_info[slot].link_buf_size);
-			ca->slot_info[slot].slot_state = DVB_CA_SLOTSTATE_LINKINIT;
-			status = -EIO;
+		/* check if there is data available */
+		status = ca->pub->read_cam_control(ca->pub, slot,
+						   CTRLIF_STATUS);
+		if (status < 0)
 			goto exit;
-		}
-		if (bytes_read < 2) {
-			pr_err("dvb_ca adapter %d: CAM sent a buffer that was less than 2 bytes!\n",
-			       ca->dvbdev->adapter->num);
-			ca->slot_info[slot].slot_state = DVB_CA_SLOTSTATE_LINKINIT;
-			status = -EIO;
+		if (!(status & STATUSREG_DA)) {
+			/* no data */
+			status = 0;
 			goto exit;
 		}
-	} else {
-		if (bytes_read > ecount) {
-			pr_err("dvb_ca adapter %d: CAM tried to send a buffer larger than the ecount size!\n",
-			       ca->dvbdev->adapter->num);
-			status = -EIO;
+
+		/* read the amount of data */
+		status = ca->pub->read_cam_control(ca->pub, slot,
+						   CTRLIF_SIZE_HIGH);
+		if (status < 0)
+			goto exit;
+		bytes_read = status << 8;
+		status = ca->pub->read_cam_control(ca->pub, slot,
+						   CTRLIF_SIZE_LOW);
+		if (status < 0)
 			goto exit;
+		bytes_read |= status;
+
+		/* check it will fit */
+		if (ebuf == NULL) {
+			if (bytes_read > ca->slot_info[slot].link_buf_size) {
+				pr_err("dvb_ca adapter %d: CAM tried to send a buffer larger than the link buffer size (%i > %i)!\n",
+				       ca->dvbdev->adapter->num, bytes_read,
+				       ca->slot_info[slot].link_buf_size);
+				ca->slot_info[slot].slot_state =
+						     DVB_CA_SLOTSTATE_LINKINIT;
+				status = -EIO;
+				goto exit;
+			}
+			if (bytes_read < 2) {
+				pr_err("dvb_ca adapter %d: CAM sent a buffer that was less than 2 bytes!\n",
+				       ca->dvbdev->adapter->num);
+				ca->slot_info[slot].slot_state =
+						     DVB_CA_SLOTSTATE_LINKINIT;
+				status = -EIO;
+				goto exit;
+			}
+		} else {
+			if (bytes_read > ecount) {
+				pr_err("dvb_ca adapter %d: CAM tried to send a buffer larger than the ecount size!\n",
+				       ca->dvbdev->adapter->num);
+				status = -EIO;
+				goto exit;
+			}
 		}
-	}
 
-	/* fill the buffer */
-	for (i = 0; i < bytes_read; i++) {
-		/* read byte and check */
-		if ((status = ca->pub->read_cam_control(ca->pub, slot, CTRLIF_DATA)) < 0)
-			goto exit;
+		/* fill the buffer */
+		for (i = 0; i < bytes_read; i++) {
+			/* read byte and check */
+			status = ca->pub->read_cam_control(ca->pub, slot,
+							   CTRLIF_DATA);
+			if (status < 0)
+				goto exit;
 
-		/* OK, store it in the buffer */
-		buf[i] = status;
-	}
+			/* OK, store it in the buffer */
+			buf[i] = status;
+		}
 
-	/* check for read error (RE should now be 0) */
-	if ((status = ca->pub->read_cam_control(ca->pub, slot, CTRLIF_STATUS)) < 0)
-		goto exit;
-	if (status & STATUSREG_RE) {
-		ca->slot_info[slot].slot_state = DVB_CA_SLOTSTATE_LINKINIT;
-		status = -EIO;
-		goto exit;
+		/* check for read error (RE should now be 0) */
+		status = ca->pub->read_cam_control(ca->pub, slot,
+						   CTRLIF_STATUS);
+		if (status < 0)
+			goto exit;
+		if (status & STATUSREG_RE) {
+			ca->slot_info[slot].slot_state =
+						     DVB_CA_SLOTSTATE_LINKINIT;
+			status = -EIO;
+			goto exit;
+		}
 	}
 
 	/* OK, add it to the receive buffer, or copy into external buffer if supplied */
@@ -762,6 +792,10 @@ static int dvb_ca_en50221_write_data(struct dvb_ca_private *ca, int slot,
 	if (bytes_write > ca->slot_info[slot].link_buf_size)
 		return -EINVAL;
 
+	if (ca->pub->write_data &&
+	    (ca->slot_info[slot].slot_state != DVB_CA_SLOTSTATE_LINKINIT))
+		return ca->pub->write_data(ca->pub, slot, buf, bytes_write);
+
 	/* it is possible we are dealing with a single buffer implementation,
 	   thus if there is data available for read or if there is even a read
 	   already in progress, we do nothing but awake the kernel thread to
@@ -1176,7 +1210,8 @@ static int dvb_ca_en50221_thread(void *data)
 
 					pr_err("dvb_ca adapter %d: DVB CAM link initialisation failed :(\n",
 					       ca->dvbdev->adapter->num);
-					ca->slot_info[slot].slot_state = DVB_CA_SLOTSTATE_INVALID;
+					ca->slot_info[slot].slot_state =
+						DVB_CA_SLOTSTATE_UNINITIALISED;
 					dvb_ca_en50221_thread_update_delay(ca);
 					break;
 				}
diff --git a/drivers/media/dvb-core/dvb_ca_en50221.h b/drivers/media/dvb-core/dvb_ca_en50221.h
index 1e4bbbd34d91..82617bac0875 100644
--- a/drivers/media/dvb-core/dvb_ca_en50221.h
+++ b/drivers/media/dvb-core/dvb_ca_en50221.h
@@ -41,6 +41,8 @@
  * @write_attribute_mem: function for writing attribute memory on the CAM
  * @read_cam_control:	function for reading the control interface on the CAM
  * @write_cam_control:	function for reading the control interface on the CAM
+ * @read_data:		function for reading data (block mode)
+ * @write_data:		function for writing data (block mode)
  * @slot_reset:		function to reset the CAM slot
  * @slot_shutdown:	function to shutdown a CAM slot
  * @slot_ts_enable:	function to enable the Transport Stream on a CAM slot
@@ -66,6 +68,11 @@ struct dvb_ca_en50221 {
 	int (*write_cam_control)(struct dvb_ca_en50221 *ca,
 				 int slot, u8 address, u8 value);
 
+	int (*read_data)(struct dvb_ca_en50221 *ca,
+				int slot, u8 *ebuf, int ecount);
+	int (*write_data)(struct dvb_ca_en50221 *ca,
+				int slot, u8 *ebuf, int ecount);
+
 	int (*slot_reset)(struct dvb_ca_en50221 *ca, int slot);
 	int (*slot_shutdown)(struct dvb_ca_en50221 *ca, int slot);
 	int (*slot_ts_enable)(struct dvb_ca_en50221 *ca, int slot);
diff --git a/drivers/media/dvb-frontends/cxd2841er.c b/drivers/media/dvb-frontends/cxd2841er.c
index 08f67d60a7d9..12bff778c97f 100644
--- a/drivers/media/dvb-frontends/cxd2841er.c
+++ b/drivers/media/dvb-frontends/cxd2841er.c
@@ -3279,7 +3279,10 @@ static int cxd2841er_get_frontend(struct dvb_frontend *fe,
 	else if (priv->state == STATE_ACTIVE_TC)
 		cxd2841er_read_status_tc(fe, &status);
 
-	cxd2841er_read_signal_strength(fe);
+	if (priv->state == STATE_ACTIVE_TC || priv->state == STATE_ACTIVE_S)
+		cxd2841er_read_signal_strength(fe);
+	else
+		p->strength.stat[0].scale = FE_SCALE_NOT_AVAILABLE;
 
 	if (status & FE_HAS_LOCK) {
 		cxd2841er_read_snr(fe);
diff --git a/drivers/media/dvb-frontends/drx39xyj/drx_driver.h b/drivers/media/dvb-frontends/drx39xyj/drx_driver.h
index 4442e478db72..cd69e187ba7a 100644
--- a/drivers/media/dvb-frontends/drx39xyj/drx_driver.h
+++ b/drivers/media/dvb-frontends/drx39xyj/drx_driver.h
@@ -307,7 +307,7 @@ int drxbsp_tuner_default_i2c_write_read(struct tuner_instance *tuner,
 * \def DRX_UNKNOWN
 * \brief Generic UNKNOWN value for DRX enumerated types.
 *
-* Used to indicate that the parameter value is unknown or not yet initalized.
+* Used to indicate that the parameter value is unknown or not yet initialized.
 */
 #ifndef DRX_UNKNOWN
 #define DRX_UNKNOWN (254)
@@ -450,19 +450,6 @@ MACROS
 			((u8)((((u16)x)>>8)&0xFF))
 
 /**
-* \brief Macro to sign extend signed 9 bit value to signed  16 bit value
-*/
-#define DRX_S9TOS16(x) ((((u16)x)&0x100) ? ((s16)((u16)(x)|0xFF00)) : (x))
-
-/**
-* \brief Macro to sign extend signed 9 bit value to signed  16 bit value
-*/
-#define DRX_S24TODRXFREQ(x) ((((u32) x) & 0x00800000UL) ? \
-				 ((s32) \
-				    (((u32) x) | 0xFF000000)) : \
-				 ((s32) x))
-
-/**
 * \brief Macro to convert 16 bit register value to a s32
 */
 #define DRX_U16TODRXFREQ(x)   ((x & 0x8000) ? \
diff --git a/drivers/media/dvb-frontends/lnbh25.c b/drivers/media/dvb-frontends/lnbh25.c
index ef3021e964be..cb486e879fdd 100644
--- a/drivers/media/dvb-frontends/lnbh25.c
+++ b/drivers/media/dvb-frontends/lnbh25.c
@@ -76,8 +76,8 @@ static int lnbh25_read_vmon(struct lnbh25_priv *priv)
 			return ret;
 		}
 	}
-	print_hex_dump_bytes("lnbh25_read_vmon: ",
-		DUMP_PREFIX_OFFSET, status, sizeof(status));
+	dev_dbg(&priv->i2c->dev, "%s(): %*ph\n",
+		__func__, (int) sizeof(status), status);
 	if ((status[0] & (LNBH25_STATUS_OFL | LNBH25_STATUS_VMON)) != 0) {
 		dev_err(&priv->i2c->dev,
 			"%s(): voltage in failure state, status reg 0x%x\n",
@@ -178,7 +178,7 @@ struct dvb_frontend *lnbh25_attach(struct dvb_frontend *fe,
 	fe->ops.release_sec = lnbh25_release;
 	fe->ops.set_voltage = lnbh25_set_voltage;
 
-	dev_err(&i2c->dev, "%s(): attached at I2C addr 0x%02x\n",
+	dev_info(&i2c->dev, "%s(): attached at I2C addr 0x%02x\n",
 		__func__, priv->i2c_address);
 	return fe;
 }
diff --git a/drivers/media/dvb-frontends/stv0367.c b/drivers/media/dvb-frontends/stv0367.c
index e726c2e00460..8ac0f598978d 100644
--- a/drivers/media/dvb-frontends/stv0367.c
+++ b/drivers/media/dvb-frontends/stv0367.c
@@ -25,6 +25,8 @@
 #include <linux/slab.h>
 #include <linux/i2c.h>
 
+#include "dvb_math.h"
+
 #include "stv0367.h"
 #include "stv0367_defs.h"
 #include "stv0367_regs.h"
@@ -1437,7 +1439,7 @@ static int stv0367ter_get_frontend(struct dvb_frontend *fe,
 	return 0;
 }
 
-static int stv0367ter_read_snr(struct dvb_frontend *fe, u16 *snr)
+static u32 stv0367ter_snr_readreg(struct dvb_frontend *fe)
 {
 	struct stv0367_state *state = fe->demodulator_priv;
 	u32 snru32 = 0;
@@ -1453,10 +1455,16 @@ static int stv0367ter_read_snr(struct dvb_frontend *fe, u16 *snr)
 
 		cpt++;
 	}
-
 	snru32 /= 10;/*average on 10 values*/
 
-	*snr = snru32 / 1000;
+	return snru32;
+}
+
+static int stv0367ter_read_snr(struct dvb_frontend *fe, u16 *snr)
+{
+	u32 snrval = stv0367ter_snr_readreg(fe);
+
+	*snr = snrval / 1000;
 
 	return 0;
 }
@@ -1501,7 +1509,8 @@ static int stv0367ter_read_status(struct dvb_frontend *fe,
 	*status = 0;
 
 	if (stv0367_readbits(state, F367TER_LK)) {
-		*status |= FE_HAS_LOCK;
+		*status = FE_HAS_SIGNAL | FE_HAS_CARRIER | FE_HAS_VITERBI
+			  | FE_HAS_SYNC | FE_HAS_LOCK;
 		dprintk("%s: stv0367 has locked\n", __func__);
 	}
 
@@ -2149,6 +2158,18 @@ static int stv0367cab_read_status(struct dvb_frontend *fe,
 
 	*status = 0;
 
+	if (state->cab_state->state > FE_CAB_NOSIGNAL)
+		*status |= FE_HAS_SIGNAL;
+
+	if (state->cab_state->state > FE_CAB_NOCARRIER)
+		*status |= FE_HAS_CARRIER;
+
+	if (state->cab_state->state >= FE_CAB_DEMODOK)
+		*status |= FE_HAS_VITERBI;
+
+	if (state->cab_state->state >= FE_CAB_DATAOK)
+		*status |= FE_HAS_SYNC;
+
 	if (stv0367_readbits(state, (state->cab_state->qamfec_status_reg ?
 		state->cab_state->qamfec_status_reg : F367CAB_QAMFEC_LOCK))) {
 		*status |= FE_HAS_LOCK;
@@ -2702,51 +2723,61 @@ static int stv0367cab_read_strength(struct dvb_frontend *fe, u16 *strength)
 	return 0;
 }
 
-static int stv0367cab_read_snr(struct dvb_frontend *fe, u16 *snr)
+static int stv0367cab_snr_power(struct dvb_frontend *fe)
 {
 	struct stv0367_state *state = fe->demodulator_priv;
-	u32 noisepercentage;
 	enum stv0367cab_mod QAMSize;
-	u32 regval = 0, temp = 0;
-	int power, i;
 
 	QAMSize = stv0367_readbits(state, F367CAB_QAM_MODE);
 	switch (QAMSize) {
 	case FE_CAB_MOD_QAM4:
-		power = 21904;
-		break;
+		return 21904;
 	case FE_CAB_MOD_QAM16:
-		power = 20480;
-		break;
+		return 20480;
 	case FE_CAB_MOD_QAM32:
-		power = 23040;
-		break;
+		return 23040;
 	case FE_CAB_MOD_QAM64:
-		power = 21504;
-		break;
+		return 21504;
 	case FE_CAB_MOD_QAM128:
-		power = 23616;
-		break;
+		return 23616;
 	case FE_CAB_MOD_QAM256:
-		power = 21760;
-		break;
-	case FE_CAB_MOD_QAM512:
-		power = 1;
-		break;
+		return 21760;
 	case FE_CAB_MOD_QAM1024:
-		power = 21280;
-		break;
+		return 21280;
 	default:
-		power = 1;
 		break;
 	}
 
+	return 1;
+}
+
+static int stv0367cab_snr_readreg(struct dvb_frontend *fe, int avgdiv)
+{
+	struct stv0367_state *state = fe->demodulator_priv;
+	u32 regval = 0;
+	int i;
+
 	for (i = 0; i < 10; i++) {
 		regval += (stv0367_readbits(state, F367CAB_SNR_LO)
 			+ 256 * stv0367_readbits(state, F367CAB_SNR_HI));
 	}
 
-	regval /= 10; /*for average over 10 times in for loop above*/
+	if (avgdiv)
+		regval /= 10;
+
+	return regval;
+}
+
+static int stv0367cab_read_snr(struct dvb_frontend *fe, u16 *snr)
+{
+	struct stv0367_state *state = fe->demodulator_priv;
+	u32 noisepercentage;
+	u32 regval = 0, temp = 0;
+	int power;
+
+	power = stv0367cab_snr_power(fe);
+	regval = stv0367cab_snr_readreg(fe, 1);
+
 	if (regval != 0) {
 		temp = power
 			* (1 << (3 + stv0367_readbits(state, F367CAB_SNR_PER)));
@@ -2980,21 +3011,117 @@ static int stv0367ddb_set_frontend(struct dvb_frontend *fe)
 	return -EINVAL;
 }
 
+static void stv0367ddb_read_signal_strength(struct dvb_frontend *fe)
+{
+	struct stv0367_state *state = fe->demodulator_priv;
+	struct dtv_frontend_properties *p = &fe->dtv_property_cache;
+	s32 signalstrength;
+
+	switch (state->activedemod) {
+	case demod_cab:
+		signalstrength = stv0367cab_get_rf_lvl(state) * 1000;
+		break;
+	default:
+		p->strength.stat[0].scale = FE_SCALE_NOT_AVAILABLE;
+		return;
+	}
+
+	p->strength.stat[0].scale = FE_SCALE_DECIBEL;
+	p->strength.stat[0].uvalue = signalstrength;
+}
+
+static void stv0367ddb_read_snr(struct dvb_frontend *fe)
+{
+	struct stv0367_state *state = fe->demodulator_priv;
+	struct dtv_frontend_properties *p = &fe->dtv_property_cache;
+	int cab_pwr;
+	u32 regval, tmpval, snrval = 0;
+
+	switch (state->activedemod) {
+	case demod_ter:
+		snrval = stv0367ter_snr_readreg(fe);
+		break;
+	case demod_cab:
+		cab_pwr = stv0367cab_snr_power(fe);
+		regval = stv0367cab_snr_readreg(fe, 0);
+
+		/* prevent division by zero */
+		if (!regval) {
+			snrval = 0;
+			break;
+		}
+
+		tmpval = (cab_pwr * 320) / regval;
+		snrval = ((tmpval != 0) ? (intlog2(tmpval) / 5581) : 0);
+		break;
+	default:
+		p->cnr.stat[0].scale = FE_SCALE_NOT_AVAILABLE;
+		return;
+	}
+
+	p->cnr.stat[0].scale = FE_SCALE_DECIBEL;
+	p->cnr.stat[0].uvalue = snrval;
+}
+
+static void stv0367ddb_read_ucblocks(struct dvb_frontend *fe)
+{
+	struct stv0367_state *state = fe->demodulator_priv;
+	struct dtv_frontend_properties *p = &fe->dtv_property_cache;
+	u32 ucblocks = 0;
+
+	switch (state->activedemod) {
+	case demod_ter:
+		stv0367ter_read_ucblocks(fe, &ucblocks);
+		break;
+	case demod_cab:
+		stv0367cab_read_ucblcks(fe, &ucblocks);
+		break;
+	default:
+		p->block_error.stat[0].scale = FE_SCALE_NOT_AVAILABLE;
+		return;
+	}
+
+	p->block_error.stat[0].scale = FE_SCALE_COUNTER;
+	p->block_error.stat[0].uvalue = ucblocks;
+}
+
 static int stv0367ddb_read_status(struct dvb_frontend *fe,
 				  enum fe_status *status)
 {
 	struct stv0367_state *state = fe->demodulator_priv;
+	struct dtv_frontend_properties *p = &fe->dtv_property_cache;
+	int ret;
 
 	switch (state->activedemod) {
 	case demod_ter:
-		return stv0367ter_read_status(fe, status);
+		ret = stv0367ter_read_status(fe, status);
+		break;
 	case demod_cab:
-		return stv0367cab_read_status(fe, status);
-	default:
+		ret = stv0367cab_read_status(fe, status);
 		break;
+	default:
+		return 0;
 	}
 
-	return -EINVAL;
+	/* stop and report on *_read_status failure */
+	if (ret)
+		return ret;
+
+	stv0367ddb_read_signal_strength(fe);
+
+	/* read carrier/noise when a carrier is detected */
+	if (*status & FE_HAS_CARRIER)
+		stv0367ddb_read_snr(fe);
+	else
+		p->cnr.stat[0].scale = FE_SCALE_NOT_AVAILABLE;
+
+	/* read uncorrected blocks on FE_HAS_LOCK */
+	if (*status & FE_HAS_LOCK)
+		stv0367ddb_read_ucblocks(fe);
+	else
+		p->block_error.stat[0].scale = FE_SCALE_NOT_AVAILABLE;
+
+	return 0;
 }
 
 static int stv0367ddb_get_frontend(struct dvb_frontend *fe,
@@ -3035,6 +3162,7 @@ static int stv0367ddb_sleep(struct dvb_frontend *fe)
 static int stv0367ddb_init(struct stv0367_state *state)
 {
 	struct stv0367ter_state *ter_state = state->ter_state;
+	struct dtv_frontend_properties *p = &state->fe.dtv_property_cache;
 
 	stv0367_writereg(state, R367TER_TOPCTRL, 0x10);
 
@@ -3109,6 +3237,13 @@ static int stv0367ddb_init(struct stv0367_state *state)
 	ter_state->first_lock = 0;
 	ter_state->unlock_counter = 2;
 
+	p->strength.len = 1;
+	p->strength.stat[0].scale = FE_SCALE_NOT_AVAILABLE;
+	p->cnr.len = 1;
+	p->cnr.stat[0].scale = FE_SCALE_NOT_AVAILABLE;
+	p->block_error.len = 1;
+	p->block_error.stat[0].scale = FE_SCALE_NOT_AVAILABLE;
+
 	return 0;
 }
 
@@ -3126,15 +3261,12 @@ static const struct dvb_frontend_ops stv0367ddb_ops = {
 			0x400 |/* FE_CAN_QAM_4 */
 			FE_CAN_QAM_16 | FE_CAN_QAM_32  |
 			FE_CAN_QAM_64 | FE_CAN_QAM_128 |
-			FE_CAN_QAM_256 | FE_CAN_FEC_AUTO |
+			FE_CAN_QAM_256 | FE_CAN_QAM_AUTO |
 			/* DVB-T */
-			FE_CAN_FEC_1_2 | FE_CAN_FEC_2_3 |
-			FE_CAN_FEC_3_4 | FE_CAN_FEC_5_6 | FE_CAN_FEC_7_8 |
-			FE_CAN_FEC_AUTO |
-			FE_CAN_QPSK | FE_CAN_QAM_16 | FE_CAN_QAM_64 |
-			FE_CAN_QAM_128 | FE_CAN_QAM_256 | FE_CAN_QAM_AUTO |
-			FE_CAN_TRANSMISSION_MODE_AUTO | FE_CAN_RECOVER |
-			FE_CAN_INVERSION_AUTO |
+			FE_CAN_FEC_1_2 | FE_CAN_FEC_2_3 | FE_CAN_FEC_3_4 |
+			FE_CAN_FEC_5_6 | FE_CAN_FEC_7_8 | FE_CAN_FEC_AUTO |
+			FE_CAN_QPSK | FE_CAN_TRANSMISSION_MODE_AUTO |
+			FE_CAN_RECOVER | FE_CAN_INVERSION_AUTO |
 			FE_CAN_MUTE_TS
 	},
 	.release = stv0367_release,
diff --git a/drivers/media/i2c/et8ek8/et8ek8_driver.c b/drivers/media/i2c/et8ek8/et8ek8_driver.c
index 6e313d5243a0..f39f5179dd95 100644
--- a/drivers/media/i2c/et8ek8/et8ek8_driver.c
+++ b/drivers/media/i2c/et8ek8/et8ek8_driver.c
@@ -1496,7 +1496,6 @@ MODULE_DEVICE_TABLE(i2c, et8ek8_id_table);
 static const struct dev_pm_ops et8ek8_pm_ops = {
 	SET_SYSTEM_SLEEP_PM_OPS(et8ek8_suspend, et8ek8_resume)
 };
-MODULE_DEVICE_TABLE(of, et8ek8_of_table);
 
 static struct i2c_driver et8ek8_i2c_driver = {
 	.driver		= {
diff --git a/drivers/media/i2c/tvp5150.c b/drivers/media/i2c/tvp5150.c
index 9da4bf4f2c7a..7b79a7498751 100644
--- a/drivers/media/i2c/tvp5150.c
+++ b/drivers/media/i2c/tvp5150.c
@@ -659,7 +659,7 @@ static int tvp5150_set_vbi(struct v4l2_subdev *sd,
 	struct tvp5150 *decoder = to_tvp5150(sd);
 	v4l2_std_id std = decoder->norm;
 	u8 reg;
-	int pos=0;
+	int pos = 0;
 
 	if (std == V4L2_STD_ALL) {
 		dev_err(sd->dev, "VBI can't be configured without knowing number of lines\n");
@@ -669,33 +669,30 @@ static int tvp5150_set_vbi(struct v4l2_subdev *sd,
 		line += 3;
 	}
 
-	if (line<6||line>27)
+	if (line < 6 || line > 27)
 		return 0;
 
-	while (regs->reg != (u16)-1 ) {
+	while (regs->reg != (u16)-1) {
 		if ((type & regs->type.vbi_type) &&
-		    (line>=regs->type.ini_line) &&
-		    (line<=regs->type.end_line)) {
-			type=regs->type.vbi_type;
+		    (line >= regs->type.ini_line) &&
+		    (line <= regs->type.end_line))
 			break;
-		}
 
 		regs++;
 		pos++;
 	}
+
 	if (regs->reg == (u16)-1)
 		return 0;
 
-	type=pos | (flags & 0xf0);
-	reg=((line-6)<<1)+TVP5150_LINE_MODE_INI;
+	type = pos | (flags & 0xf0);
+	reg = ((line - 6) << 1) + TVP5150_LINE_MODE_INI;
 
-	if (fields&1) {
+	if (fields & 1)
 		tvp5150_write(sd, reg, type);
-	}
 
-	if (fields&2) {
-		tvp5150_write(sd, reg+1, type);
-	}
+	if (fields & 2)
+		tvp5150_write(sd, reg + 1, type);
 
 	return type;
 }
diff --git a/drivers/media/pci/ddbridge/ddbridge-core.c b/drivers/media/pci/ddbridge/ddbridge-core.c
index 9420479bee9a..cd1723e79a07 100644
--- a/drivers/media/pci/ddbridge/ddbridge-core.c
+++ b/drivers/media/pci/ddbridge/ddbridge-core.c
@@ -17,6 +17,8 @@
  * http://www.gnu.org/copyleft/gpl.html
  */
 
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
 #include <linux/module.h>
 #include <linux/init.h>
 #include <linux/interrupt.h>
@@ -114,6 +116,19 @@ static int i2c_write_reg(struct i2c_adapter *adap, u8 adr,
 	return i2c_write(adap, adr, msg, 2);
 }
 
+static inline u32 safe_ddbreadl(struct ddb *dev, u32 adr)
+{
+	u32 val = ddbreadl(adr);
+
+	/* (ddb)readl returns (uint)-1 (all bits set) on failure, catch that */
+	if (val == ~0) {
+		dev_err(&dev->pdev->dev, "ddbreadl failure, adr=%08x\n", adr);
+		return 0;
+	}
+
+	return val;
+}
+
 static int ddb_i2c_cmd(struct ddb_i2c *i2c, u32 adr, u32 cmd)
 {
 	struct ddb *dev = i2c->dev;
@@ -124,10 +139,10 @@ static int ddb_i2c_cmd(struct ddb_i2c *i2c, u32 adr, u32 cmd)
 	ddbwritel((adr << 9) | cmd, i2c->regs + I2C_COMMAND);
 	stat = wait_event_timeout(i2c->wq, i2c->done == 1, HZ);
 	if (stat == 0) {
-		printk(KERN_ERR "I2C timeout\n");
+		dev_err(&dev->pdev->dev, "I2C timeout\n");
 		{ /* MSI debugging*/
 			u32 istat = ddbreadl(INTERRUPT_STATUS);
-			printk(KERN_ERR "IRS %08x\n", istat);
+			dev_err(&dev->pdev->dev, "IRS %08x\n", istat);
 			ddbwritel(istat, INTERRUPT_ACK);
 		}
 		return -EIO;
@@ -533,7 +548,7 @@ static u32 ddb_input_avail(struct ddb_input *input)
 	off = (stat & 0x7ff) << 7;
 
 	if (ctrl & 4) {
-		printk(KERN_ERR "IA %d %d %08x\n", idx, off, ctrl);
+		dev_err(&dev->pdev->dev, "IA %d %d %08x\n", idx, off, ctrl);
 		ddbwritel(input->stat, DMA_BUFFER_ACK(input->nr));
 		return 0;
 	}
@@ -611,6 +626,7 @@ static int demod_attach_drxk(struct ddb_input *input)
 	struct i2c_adapter *i2c = &input->port->i2c->adap;
 	struct dvb_frontend *fe;
 	struct drxk_config config;
+	struct device *dev = &input->port->dev->pdev->dev;
 
 	memset(&config, 0, sizeof(config));
 	config.microcode_name = "drxk_a3.mc";
@@ -619,7 +635,7 @@ static int demod_attach_drxk(struct ddb_input *input)
 
 	fe = input->fe = dvb_attach(drxk_attach, &config, i2c);
 	if (!input->fe) {
-		printk(KERN_ERR "No DRXK found!\n");
+		dev_err(dev, "No DRXK found!\n");
 		return -ENODEV;
 	}
 	fe->sec_priv = input;
@@ -632,12 +648,13 @@ static int tuner_attach_tda18271(struct ddb_input *input)
 {
 	struct i2c_adapter *i2c = &input->port->i2c->adap;
 	struct dvb_frontend *fe;
+	struct device *dev = &input->port->dev->pdev->dev;
 
 	if (input->fe->ops.i2c_gate_ctrl)
 		input->fe->ops.i2c_gate_ctrl(input->fe, 1);
 	fe = dvb_attach(tda18271c2dd_attach, input->fe, i2c, 0x60);
 	if (!fe) {
-		printk(KERN_ERR "No TDA18271 found!\n");
+		dev_err(dev, "No TDA18271 found!\n");
 		return -ENODEV;
 	}
 	if (input->fe->ops.i2c_gate_ctrl)
@@ -670,13 +687,14 @@ static struct stv0367_config ddb_stv0367_config[] = {
 static int demod_attach_stv0367(struct ddb_input *input)
 {
 	struct i2c_adapter *i2c = &input->port->i2c->adap;
+	struct device *dev = &input->port->dev->pdev->dev;
 
 	/* attach frontend */
 	input->fe = dvb_attach(stv0367ddb_attach,
 		&ddb_stv0367_config[(input->nr & 1)], i2c);
 
 	if (!input->fe) {
-		printk(KERN_ERR "stv0367ddb_attach failed (not found?)\n");
+		dev_err(dev, "stv0367ddb_attach failed (not found?)\n");
 		return -ENODEV;
 	}
 
@@ -690,17 +708,19 @@ static int demod_attach_stv0367(struct ddb_input *input)
 static int tuner_tda18212_ping(struct ddb_input *input, unsigned short adr)
 {
 	struct i2c_adapter *adapter = &input->port->i2c->adap;
+	struct device *dev = &input->port->dev->pdev->dev;
+
 	u8 tda_id[2];
 	u8 subaddr = 0x00;
 
-	printk(KERN_DEBUG "stv0367-tda18212 tuner ping\n");
+	dev_dbg(dev, "stv0367-tda18212 tuner ping\n");
 	if (input->fe->ops.i2c_gate_ctrl)
 		input->fe->ops.i2c_gate_ctrl(input->fe, 1);
 
 	if (i2c_read_regs(adapter, adr, subaddr, tda_id, sizeof(tda_id)) < 0)
-		printk(KERN_DEBUG "tda18212 ping 1 fail\n");
+		dev_dbg(dev, "tda18212 ping 1 fail\n");
 	if (i2c_read_regs(adapter, adr, subaddr, tda_id, sizeof(tda_id)) < 0)
-		printk(KERN_DEBUG "tda18212 ping 2 fail\n");
+		dev_warn(dev, "tda18212 ping failed, expect problems\n");
 
 	if (input->fe->ops.i2c_gate_ctrl)
 		input->fe->ops.i2c_gate_ctrl(input->fe, 0);
@@ -711,6 +731,7 @@ static int tuner_tda18212_ping(struct ddb_input *input, unsigned short adr)
 static int demod_attach_cxd28xx(struct ddb_input *input, int par, int osc24)
 {
 	struct i2c_adapter *i2c = &input->port->i2c->adap;
+	struct device *dev = &input->port->dev->pdev->dev;
 	struct cxd2841er_config cfg;
 
 	/* the cxd2841er driver expects 8bit/shifted I2C addresses */
@@ -728,7 +749,7 @@ static int demod_attach_cxd28xx(struct ddb_input *input, int par, int osc24)
 	input->fe = dvb_attach(cxd2841er_attach_t_c, &cfg, i2c);
 
 	if (!input->fe) {
-		printk(KERN_ERR "No Sony CXD28xx found!\n");
+		dev_err(dev, "No Sony CXD28xx found!\n");
 		return -ENODEV;
 	}
 
@@ -742,6 +763,7 @@ static int demod_attach_cxd28xx(struct ddb_input *input, int par, int osc24)
 static int tuner_attach_tda18212(struct ddb_input *input, u32 porttype)
 {
 	struct i2c_adapter *adapter = &input->port->i2c->adap;
+	struct device *dev = &input->port->dev->pdev->dev;
 	struct i2c_client *client;
 	struct tda18212_config config = {
 		.fe = input->fe,
@@ -786,7 +808,7 @@ static int tuner_attach_tda18212(struct ddb_input *input, u32 porttype)
 
 	return 0;
 err:
-	printk(KERN_INFO "TDA18212 tuner not found. Device is not fully operational.\n");
+	dev_warn(dev, "TDA18212 tuner not found. Device is not fully operational.\n");
 	return -ENODEV;
 }
 
@@ -847,19 +869,20 @@ static struct stv6110x_config stv6110b = {
 static int demod_attach_stv0900(struct ddb_input *input, int type)
 {
 	struct i2c_adapter *i2c = &input->port->i2c->adap;
+	struct device *dev = &input->port->dev->pdev->dev;
 	struct stv090x_config *feconf = type ? &stv0900_aa : &stv0900;
 
 	input->fe = dvb_attach(stv090x_attach, feconf, i2c,
 			       (input->nr & 1) ? STV090x_DEMODULATOR_1
 			       : STV090x_DEMODULATOR_0);
 	if (!input->fe) {
-		printk(KERN_ERR "No STV0900 found!\n");
+		dev_err(dev, "No STV0900 found!\n");
 		return -ENODEV;
 	}
 	if (!dvb_attach(lnbh24_attach, input->fe, i2c, 0,
 			0, (input->nr & 1) ?
 			(0x09 - type) : (0x0b - type))) {
-		printk(KERN_ERR "No LNBH24 found!\n");
+		dev_err(dev, "No LNBH24 found!\n");
 		return -ENODEV;
 	}
 	return 0;
@@ -868,6 +891,7 @@ static int demod_attach_stv0900(struct ddb_input *input, int type)
 static int tuner_attach_stv6110(struct ddb_input *input, int type)
 {
 	struct i2c_adapter *i2c = &input->port->i2c->adap;
+	struct device *dev = &input->port->dev->pdev->dev;
 	struct stv090x_config *feconf = type ? &stv0900_aa : &stv0900;
 	struct stv6110x_config *tunerconf = (input->nr & 1) ?
 		&stv6110b : &stv6110a;
@@ -875,10 +899,10 @@ static int tuner_attach_stv6110(struct ddb_input *input, int type)
 
 	ctl = dvb_attach(stv6110x_attach, input->fe, tunerconf, i2c);
 	if (!ctl) {
-		printk(KERN_ERR "No STV6110X found!\n");
+		dev_err(dev, "No STV6110X found!\n");
 		return -ENODEV;
 	}
-	printk(KERN_INFO "attach tuner input %d adr %02x\n",
+	dev_info(dev, "attach tuner input %d adr %02x\n",
 			 input->nr, tunerconf->addr);
 
 	feconf->tuner_init          = ctl->tuner_init;
@@ -1009,13 +1033,14 @@ static int dvb_input_attach(struct ddb_input *input)
 	struct ddb_port *port = input->port;
 	struct dvb_adapter *adap = &input->adap;
 	struct dvb_demux *dvbdemux = &input->demux;
+	struct device *dev = &input->port->dev->pdev->dev;
 	int sony_osc24 = 0, sony_tspar = 0;
 
 	ret = dvb_register_adapter(adap, "DDBridge", THIS_MODULE,
 				   &input->port->dev->pdev->dev,
 				   adapter_nr);
 	if (ret < 0) {
-		printk(KERN_ERR "ddbridge: Could not register adapter.Check if you enabled enough adapters in dvb-core!\n");
+		dev_err(dev, "Could not register adapter. Check if you enabled enough adapters in dvb-core!\n");
 		return ret;
 	}
 	input->attached = 1;
@@ -1241,9 +1266,9 @@ static void input_tasklet(unsigned long data)
 
 	if (input->port->class == DDB_PORT_TUNER) {
 		if (4&ddbreadl(DMA_BUFFER_CONTROL(input->nr)))
-			printk(KERN_ERR "Overflow input %d\n", input->nr);
+			dev_err(&dev->pdev->dev, "Overflow input %d\n", input->nr);
 		while (input->cbuf != ((input->stat >> 11) & 0x1f)
-		       || (4&ddbreadl(DMA_BUFFER_CONTROL(input->nr)))) {
+		       || (4 & safe_ddbreadl(dev, DMA_BUFFER_CONTROL(input->nr)))) {
 			dvb_dmx_swfilter_packets(&input->demux,
 						 input->vbuf[input->cbuf],
 						 input->dma_buf_size / 188);
@@ -1280,6 +1305,7 @@ static struct cxd2099_cfg cxd_cfg = {
 	.adr     =  0x40,
 	.polarity = 1,
 	.clock_mode = 1,
+	.max_i2c = 512,
 };
 
 static int ddb_ci_attach(struct ddb_port *port)
@@ -1310,6 +1336,7 @@ static int ddb_ci_attach(struct ddb_port *port)
 
 static int ddb_port_attach(struct ddb_port *port)
 {
+	struct device *dev = &port->dev->pdev->dev;
 	int ret = 0;
 
 	switch (port->class) {
@@ -1326,7 +1353,7 @@ static int ddb_port_attach(struct ddb_port *port)
 		break;
 	}
 	if (ret < 0)
-		printk(KERN_ERR "port_attach on port %d failed\n", port->nr);
+		dev_err(dev, "port_attach on port %d failed\n", port->nr);
 	return ret;
 }
 
@@ -1377,6 +1404,7 @@ static void ddb_ports_detach(struct ddb *dev)
 static int init_xo2(struct ddb_port *port)
 {
 	struct i2c_adapter *i2c = &port->i2c->adap;
+	struct device *dev = &port->dev->pdev->dev;
 	u8 val, data[2];
 	int res;
 
@@ -1385,7 +1413,7 @@ static int init_xo2(struct ddb_port *port)
 		return res;
 
 	if (data[0] != 0x01)  {
-		pr_info("Port %d: invalid XO2\n", port->nr);
+		dev_info(dev, "Port %d: invalid XO2\n", port->nr);
 		return -1;
 	}
 
@@ -1511,7 +1539,7 @@ static void ddb_port_probe(struct ddb_port *port)
 		port->class = DDB_PORT_CI;
 		ddbwritel(I2C_SPEED_400, port->i2c->regs + I2C_TIMING);
 	} else if (port_has_xo2(port, &xo2_type, &xo2_id)) {
-		printk(KERN_INFO "Port %d (TAB %d): XO2 type: %d, id: %d\n",
+		dev_dbg(&dev->pdev->dev, "Port %d (TAB %d): XO2 type: %d, id: %d\n",
 			port->nr, port->nr+1, xo2_type, xo2_id);
 
 		ddbwritel(I2C_SPEED_400, port->i2c->regs + I2C_TIMING);
@@ -1556,10 +1584,10 @@ static void ddb_port_probe(struct ddb_port *port)
 			}
 			break;
 		case DDB_XO2_TYPE_CI:
-			printk(KERN_INFO "DuoFlex CI modules not supported\n");
+			dev_info(&dev->pdev->dev, "DuoFlex CI modules not supported\n");
 			break;
 		default:
-			printk(KERN_INFO "Unknown XO2 DuoFlex module\n");
+			dev_info(&dev->pdev->dev, "Unknown XO2 DuoFlex module\n");
 			break;
 		}
 	} else if (port_has_cxd28xx(port, &cxd_id)) {
@@ -1611,7 +1639,7 @@ static void ddb_port_probe(struct ddb_port *port)
 		ddbwritel(I2C_SPEED_100, port->i2c->regs + I2C_TIMING);
 	}
 
-	printk(KERN_INFO "Port %d (TAB %d): %s\n",
+	dev_info(&dev->pdev->dev, "Port %d (TAB %d): %s\n",
 			 port->nr, port->nr+1, modname);
 }
 
@@ -1765,7 +1793,7 @@ static int flashio(struct ddb *dev, u8 *wbuf, u32 wlen, u8 *rbuf, u32 rlen)
 		wbuf += 4;
 		wlen -= 4;
 		ddbwritel(data, SPI_DATA);
-		while (ddbreadl(SPI_CONTROL) & 0x0004)
+		while (safe_ddbreadl(dev, SPI_CONTROL) & 0x0004)
 			;
 	}
 
@@ -1785,7 +1813,7 @@ static int flashio(struct ddb *dev, u8 *wbuf, u32 wlen, u8 *rbuf, u32 rlen)
 	if (shift)
 		data <<= shift;
 	ddbwritel(data, SPI_DATA);
-	while (ddbreadl(SPI_CONTROL) & 0x0004)
+	while (safe_ddbreadl(dev, SPI_CONTROL) & 0x0004)
 		;
 
 	if (!rlen) {
@@ -1797,7 +1825,7 @@ static int flashio(struct ddb *dev, u8 *wbuf, u32 wlen, u8 *rbuf, u32 rlen)
 
 	while (rlen > 4) {
 		ddbwritel(0xffffffff, SPI_DATA);
-		while (ddbreadl(SPI_CONTROL) & 0x0004)
+		while (safe_ddbreadl(dev, SPI_CONTROL) & 0x0004)
 			;
 		data = ddbreadl(SPI_DATA);
 		*(u32 *) rbuf = swab32(data);
@@ -1806,7 +1834,7 @@ static int flashio(struct ddb *dev, u8 *wbuf, u32 wlen, u8 *rbuf, u32 rlen)
 	}
 	ddbwritel(0x0003 | ((rlen << (8 + 3)) & 0x1F00), SPI_CONTROL);
 	ddbwritel(0xffffffff, SPI_DATA);
-	while (ddbreadl(SPI_CONTROL) & 0x0004)
+	while (safe_ddbreadl(dev, SPI_CONTROL) & 0x0004)
 		;
 
 	data = ddbreadl(SPI_DATA);
@@ -1993,7 +2021,7 @@ static int ddb_probe(struct pci_dev *pdev, const struct pci_device_id *id)
 	dev->pdev = pdev;
 	pci_set_drvdata(pdev, dev);
 	dev->info = (struct ddb_info *) id->driver_data;
-	printk(KERN_INFO "DDBridge driver detected: %s\n", dev->info->name);
+	dev_info(&pdev->dev, "Detected %s\n", dev->info->name);
 
 	dev->regs = ioremap(pci_resource_start(dev->pdev, 0),
 			    pci_resource_len(dev->pdev, 0));
@@ -2001,13 +2029,13 @@ static int ddb_probe(struct pci_dev *pdev, const struct pci_device_id *id)
 		stat = -ENOMEM;
 		goto fail;
 	}
-	printk(KERN_INFO "HW %08x FW %08x\n", ddbreadl(0), ddbreadl(4));
+	dev_info(&pdev->dev, "HW %08x FW %08x\n", ddbreadl(0), ddbreadl(4));
 
 #ifdef CONFIG_PCI_MSI
 	if (pci_msi_enabled())
 		stat = pci_enable_msi(dev->pdev);
 	if (stat) {
-		printk(KERN_INFO ": MSI not available.\n");
+		dev_info(&pdev->dev, "MSI not available.\n");
 	} else {
 		irq_flag = 0;
 		dev->msi = 1;
@@ -2040,7 +2068,7 @@ static int ddb_probe(struct pci_dev *pdev, const struct pci_device_id *id)
 		goto fail1;
 	ddb_ports_init(dev);
 	if (ddb_buffers_alloc(dev) < 0) {
-		printk(KERN_INFO ": Could not allocate buffer memory\n");
+		dev_err(&pdev->dev, "Could not allocate buffer memory\n");
 		goto fail2;
 	}
 	if (ddb_ports_attach(dev) < 0)
@@ -2050,19 +2078,19 @@ static int ddb_probe(struct pci_dev *pdev, const struct pci_device_id *id)
 
 fail3:
 	ddb_ports_detach(dev);
-	printk(KERN_ERR "fail3\n");
+	dev_err(&pdev->dev, "fail3\n");
 	ddb_ports_release(dev);
 fail2:
-	printk(KERN_ERR "fail2\n");
+	dev_err(&pdev->dev, "fail2\n");
 	ddb_buffers_free(dev);
 fail1:
-	printk(KERN_ERR "fail1\n");
+	dev_err(&pdev->dev, "fail1\n");
 	if (dev->msi)
 		pci_disable_msi(dev->pdev);
 	if (stat == 0)
 		free_irq(dev->pdev->irq, dev);
 fail:
-	printk(KERN_ERR "fail\n");
+	dev_err(&pdev->dev, "fail\n");
 	ddb_unmap(dev);
 	pci_set_drvdata(pdev, NULL);
 	pci_disable_device(pdev);
@@ -2242,7 +2270,7 @@ static __init int module_init_ddbridge(void)
 {
 	int ret;
 
-	printk(KERN_INFO "Digital Devices PCIE bridge driver, Copyright (C) 2010-11 Digital Devices GmbH\n");
+	pr_info("Digital Devices PCIE bridge driver, Copyright (C) 2010-11 Digital Devices GmbH\n");
 
 	ret = ddb_class_create();
 	if (ret < 0)
diff --git a/drivers/media/pci/ngene/ngene-core.c b/drivers/media/pci/ngene/ngene-core.c
index ce69e648b663..8c92cb7f7e72 100644
--- a/drivers/media/pci/ngene/ngene-core.c
+++ b/drivers/media/pci/ngene/ngene-core.c
@@ -336,9 +336,9 @@ int ngene_command(struct ngene *dev, struct ngene_command *com)
 {
 	int result;
 
-	down(&dev->cmd_mutex);
+	mutex_lock(&dev->cmd_mutex);
 	result = ngene_command_mutex(dev, com);
-	up(&dev->cmd_mutex);
+	mutex_unlock(&dev->cmd_mutex);
 	return result;
 }
 
@@ -560,7 +560,6 @@ static int ngene_command_stream_control(struct ngene *dev, u8 stream,
 	u16 BsSPI = ((stream & 1) ? 0x9800 : 0x9700);
 	u16 BsSDO = 0x9B00;
 
-	down(&dev->stream_mutex);
 	memset(&com, 0, sizeof(com));
 	com.cmd.hdr.Opcode = CMD_CONTROL;
 	com.cmd.hdr.Length = sizeof(struct FW_STREAM_CONTROL) - 2;
@@ -586,17 +585,13 @@ static int ngene_command_stream_control(struct ngene *dev, u8 stream,
 			chan->State = KSSTATE_ACQUIRE;
 			chan->HWState = HWSTATE_STOP;
 			spin_unlock_irq(&chan->state_lock);
-			if (ngene_command(dev, &com) < 0) {
-				up(&dev->stream_mutex);
+			if (ngene_command(dev, &com) < 0)
 				return -1;
-			}
 			/* clear_buffers(chan); */
 			flush_buffers(chan);
-			up(&dev->stream_mutex);
 			return 0;
 		}
 		spin_unlock_irq(&chan->state_lock);
-		up(&dev->stream_mutex);
 		return 0;
 	}
 
@@ -692,11 +687,9 @@ static int ngene_command_stream_control(struct ngene *dev, u8 stream,
 		chan->HWState = HWSTATE_STARTUP;
 	spin_unlock_irq(&chan->state_lock);
 
-	if (ngene_command(dev, &com) < 0) {
-		up(&dev->stream_mutex);
+	if (ngene_command(dev, &com) < 0)
 		return -1;
-	}
-	up(&dev->stream_mutex);
+
 	return 0;
 }
 
@@ -750,8 +743,11 @@ void set_transfer(struct ngene_channel *chan, int state)
 		/* else printk(KERN_INFO DEVICE_NAME ": lock=%08x\n",
 			   ngreadl(0x9310)); */
 
+	mutex_lock(&dev->stream_mutex);
 	ret = ngene_command_stream_control(dev, chan->number,
 					   control, mode, flags);
+	mutex_unlock(&dev->stream_mutex);
+
 	if (!ret)
 		chan->running = state;
 	else
@@ -1283,7 +1279,7 @@ static int ngene_load_firm(struct ngene *dev)
 
 static void ngene_stop(struct ngene *dev)
 {
-	down(&dev->cmd_mutex);
+	mutex_destroy(&dev->cmd_mutex);
 	i2c_del_adapter(&(dev->channel[0].i2c_adapter));
 	i2c_del_adapter(&(dev->channel[1].i2c_adapter));
 	ngwritel(0, NGENE_INT_ENABLE);
@@ -1346,10 +1342,10 @@ static int ngene_start(struct ngene *dev)
 	init_waitqueue_head(&dev->cmd_wq);
 	init_waitqueue_head(&dev->tx_wq);
 	init_waitqueue_head(&dev->rx_wq);
-	sema_init(&dev->cmd_mutex, 1);
-	sema_init(&dev->stream_mutex, 1);
+	mutex_init(&dev->cmd_mutex);
+	mutex_init(&dev->stream_mutex);
 	sema_init(&dev->pll_mutex, 1);
-	sema_init(&dev->i2c_switch_mutex, 1);
+	mutex_init(&dev->i2c_switch_mutex);
 	spin_lock_init(&dev->cmd_lock);
 	for (i = 0; i < MAX_STREAM; i++)
 		spin_lock_init(&dev->channel[i].state_lock);
@@ -1606,10 +1602,10 @@ static void ngene_unlink(struct ngene *dev)
 	com.in_len = 3;
 	com.out_len = 1;
 
-	down(&dev->cmd_mutex);
+	mutex_lock(&dev->cmd_mutex);
 	ngwritel(0, NGENE_INT_ENABLE);
 	ngene_command_mutex(dev, &com);
-	up(&dev->cmd_mutex);
+	mutex_unlock(&dev->cmd_mutex);
 }
 
 void ngene_shutdown(struct pci_dev *pdev)
diff --git a/drivers/media/pci/ngene/ngene-i2c.c b/drivers/media/pci/ngene/ngene-i2c.c
index cf39fcf54adf..fbf36353c701 100644
--- a/drivers/media/pci/ngene/ngene-i2c.c
+++ b/drivers/media/pci/ngene/ngene-i2c.c
@@ -118,7 +118,7 @@ static int ngene_i2c_master_xfer(struct i2c_adapter *adapter,
 		(struct ngene_channel *)i2c_get_adapdata(adapter);
 	struct ngene *dev = chan->dev;
 
-	down(&dev->i2c_switch_mutex);
+	mutex_lock(&dev->i2c_switch_mutex);
 	ngene_i2c_set_bus(dev, chan->number);
 
 	if (num == 2 && msg[1].flags & I2C_M_RD && !(msg[0].flags & I2C_M_RD))
@@ -136,11 +136,11 @@ static int ngene_i2c_master_xfer(struct i2c_adapter *adapter,
 					    msg[0].buf, msg[0].len, 0))
 			goto done;
 
-	up(&dev->i2c_switch_mutex);
+	mutex_unlock(&dev->i2c_switch_mutex);
 	return -EIO;
 
 done:
-	up(&dev->i2c_switch_mutex);
+	mutex_unlock(&dev->i2c_switch_mutex);
 	return num;
 }
 
diff --git a/drivers/media/pci/ngene/ngene.h b/drivers/media/pci/ngene/ngene.h
index 10d8f74c4f0a..7c7cd217333d 100644
--- a/drivers/media/pci/ngene/ngene.h
+++ b/drivers/media/pci/ngene/ngene.h
@@ -762,10 +762,10 @@ struct ngene {
 
 	wait_queue_head_t     cmd_wq;
 	int                   cmd_done;
-	struct semaphore      cmd_mutex;
-	struct semaphore      stream_mutex;
+	struct mutex          cmd_mutex;
+	struct mutex          stream_mutex;
 	struct semaphore      pll_mutex;
-	struct semaphore      i2c_switch_mutex;
+	struct mutex          i2c_switch_mutex;
 	int                   i2c_current_channel;
 	int                   i2c_current_bus;
 	spinlock_t            cmd_lock;
diff --git a/drivers/media/pci/tw5864/tw5864-video.c b/drivers/media/pci/tw5864/tw5864-video.c
index 2a044be729da..e7bd2b8484e3 100644
--- a/drivers/media/pci/tw5864/tw5864-video.c
+++ b/drivers/media/pci/tw5864/tw5864-video.c
@@ -545,6 +545,7 @@ static int tw5864_fmt_vid_cap(struct file *file, void *priv,
 	switch (input->std) {
 	default:
 		WARN_ON_ONCE(1);
+		return -EINVAL;
 	case STD_NTSC:
 		f->fmt.pix.height = 480;
 		break;
diff --git a/drivers/media/platform/Kconfig b/drivers/media/platform/Kconfig
index 1313cd533436..fb1fa0b82077 100644
--- a/drivers/media/platform/Kconfig
+++ b/drivers/media/platform/Kconfig
@@ -475,8 +475,8 @@ config VIDEO_QCOM_VENUS
 	tristate "Qualcomm Venus V4L2 encoder/decoder driver"
 	depends on VIDEO_DEV && VIDEO_V4L2 && HAS_DMA
 	depends on (ARCH_QCOM && IOMMU_DMA) || COMPILE_TEST
-	select QCOM_MDT_LOADER if (ARM || ARM64)
-	select QCOM_SCM if (ARM || ARM64)
+	select QCOM_MDT_LOADER if ARCH_QCOM
+	select QCOM_SCM if ARCH_QCOM
 	select VIDEOBUF2_DMA_SG
 	select V4L2_MEM2MEM_DEV
 	---help---
diff --git a/drivers/media/platform/coda/coda-bit.c b/drivers/media/platform/coda/coda-bit.c
index 25cbf9e5ac5a..bba1eb43b5d8 100644
--- a/drivers/media/platform/coda/coda-bit.c
+++ b/drivers/media/platform/coda/coda-bit.c
@@ -393,8 +393,8 @@ static int coda_alloc_framebuffers(struct coda_ctx *ctx,
 	int ret;
 	int i;
 
-	if (ctx->codec && (ctx->codec->src_fourcc == V4L2_PIX_FMT_H264 ||
-	     ctx->codec->dst_fourcc == V4L2_PIX_FMT_H264)) {
+	if (ctx->codec->src_fourcc == V4L2_PIX_FMT_H264 ||
+	    ctx->codec->dst_fourcc == V4L2_PIX_FMT_H264) {
 		width = round_up(q_data->width, 16);
 		height = round_up(q_data->height, 16);
 	} else {
@@ -2198,7 +2198,7 @@ static void coda_finish_decode(struct coda_ctx *ctx)
 	ctx->display_idx = display_idx;
 }
 
-static void coda_error_decode(struct coda_ctx *ctx)
+static void coda_decode_timeout(struct coda_ctx *ctx)
 {
 	struct vb2_v4l2_buffer *dst_buf;
 
@@ -2223,7 +2223,7 @@ const struct coda_context_ops coda_bit_decode_ops = {
 	.start_streaming = coda_start_decoding,
 	.prepare_run = coda_prepare_decode,
 	.finish_run = coda_finish_decode,
-	.error_run = coda_error_decode,
+	.run_timeout = coda_decode_timeout,
 	.seq_end_work = coda_seq_end_work,
 	.release = coda_bit_release,
 };
diff --git a/drivers/media/platform/coda/coda-common.c b/drivers/media/platform/coda/coda-common.c
index f92cc7df58fb..829c7895a98a 100644
--- a/drivers/media/platform/coda/coda-common.c
+++ b/drivers/media/platform/coda/coda-common.c
@@ -1164,8 +1164,8 @@ static void coda_pic_run_work(struct work_struct *work)
 
 		coda_hw_reset(ctx);
 
-		if (ctx->ops->error_run)
-			ctx->ops->error_run(ctx);
+		if (ctx->ops->run_timeout)
+			ctx->ops->run_timeout(ctx);
 	} else if (!ctx->aborting) {
 		ctx->ops->finish_run(ctx);
 	}
diff --git a/drivers/media/platform/coda/coda.h b/drivers/media/platform/coda/coda.h
index 40fe22f0d757..c5f504d8cf67 100644
--- a/drivers/media/platform/coda/coda.h
+++ b/drivers/media/platform/coda/coda.h
@@ -183,7 +183,7 @@ struct coda_context_ops {
 	int (*start_streaming)(struct coda_ctx *ctx);
 	int (*prepare_run)(struct coda_ctx *ctx);
 	void (*finish_run)(struct coda_ctx *ctx);
-	void (*error_run)(struct coda_ctx *ctx);
+	void (*run_timeout)(struct coda_ctx *ctx);
 	void (*seq_end_work)(struct work_struct *work);
 	void (*release)(struct coda_ctx *ctx);
 };
diff --git a/drivers/media/platform/davinci/ccdc_hw_device.h b/drivers/media/platform/davinci/ccdc_hw_device.h
index 8f6688a7a111..f1b521045d64 100644
--- a/drivers/media/platform/davinci/ccdc_hw_device.h
+++ b/drivers/media/platform/davinci/ccdc_hw_device.h
@@ -42,16 +42,6 @@ struct ccdc_hw_ops {
 	int (*set_hw_if_params) (struct vpfe_hw_if_param *param);
 	/* get interface parameters */
 	int (*get_hw_if_params) (struct vpfe_hw_if_param *param);
-	/*
-	 * Pointer to function to set parameters. Used
-	 * for implementing VPFE_S_CCDC_PARAMS
-	 */
-	int (*set_params) (void *params);
-	/*
-	 * Pointer to function to get parameter. Used
-	 * for implementing VPFE_G_CCDC_PARAMS
-	 */
-	int (*get_params) (void *params);
 	/* Pointer to function to configure ccdc */
 	int (*configure) (void);
 
diff --git a/drivers/media/platform/davinci/dm355_ccdc.c b/drivers/media/platform/davinci/dm355_ccdc.c
index 73db166dc338..6d492dc4c3a9 100644
--- a/drivers/media/platform/davinci/dm355_ccdc.c
+++ b/drivers/media/platform/davinci/dm355_ccdc.c
@@ -17,12 +17,7 @@
  * This module is for configuring DM355 CCD controller of VPFE to capture
  * Raw yuv or Bayer RGB data from a decoder. CCDC has several modules
  * such as Defect Pixel Correction, Color Space Conversion etc to
- * pre-process the Bayer RGB data, before writing it to SDRAM. This
- * module also allows application to configure individual
- * module parameters through VPFE_CMD_S_CCDC_RAW_PARAMS IOCTL.
- * To do so, application include dm355_ccdc.h and vpfe_capture.h header
- * files. The setparams() API is called by vpfe_capture driver
- * to configure module parameters
+ * pre-process the Bayer RGB data, before writing it to SDRAM.
  *
  * TODO: 1) Raw bayer parameter settings and bayer capture
  * 	 2) Split module parameter structure to module specific ioctl structs
@@ -260,90 +255,6 @@ static void ccdc_setwin(struct v4l2_rect *image_win,
 	dev_dbg(ccdc_cfg.dev, "\nEnd of ccdc_setwin...");
 }
 
-static int validate_ccdc_param(struct ccdc_config_params_raw *ccdcparam)
-{
-	if (ccdcparam->datasft < CCDC_DATA_NO_SHIFT ||
-	    ccdcparam->datasft > CCDC_DATA_SHIFT_6BIT) {
-		dev_dbg(ccdc_cfg.dev, "Invalid value of data shift\n");
-		return -EINVAL;
-	}
-
-	if (ccdcparam->mfilt1 < CCDC_NO_MEDIAN_FILTER1 ||
-	    ccdcparam->mfilt1 > CCDC_MEDIAN_FILTER1) {
-		dev_dbg(ccdc_cfg.dev, "Invalid value of median filter1\n");
-		return -EINVAL;
-	}
-
-	if (ccdcparam->mfilt2 < CCDC_NO_MEDIAN_FILTER2 ||
-	    ccdcparam->mfilt2 > CCDC_MEDIAN_FILTER2) {
-		dev_dbg(ccdc_cfg.dev, "Invalid value of median filter2\n");
-		return -EINVAL;
-	}
-
-	if ((ccdcparam->med_filt_thres < 0) ||
-	   (ccdcparam->med_filt_thres > CCDC_MED_FILT_THRESH)) {
-		dev_dbg(ccdc_cfg.dev,
-			"Invalid value of median filter threshold\n");
-		return -EINVAL;
-	}
-
-	if (ccdcparam->data_sz < CCDC_DATA_16BITS ||
-	    ccdcparam->data_sz > CCDC_DATA_8BITS) {
-		dev_dbg(ccdc_cfg.dev, "Invalid value of data size\n");
-		return -EINVAL;
-	}
-
-	if (ccdcparam->alaw.enable) {
-		if (ccdcparam->alaw.gamma_wd < CCDC_GAMMA_BITS_13_4 ||
-		    ccdcparam->alaw.gamma_wd > CCDC_GAMMA_BITS_09_0) {
-			dev_dbg(ccdc_cfg.dev, "Invalid value of ALAW\n");
-			return -EINVAL;
-		}
-	}
-
-	if (ccdcparam->blk_clamp.b_clamp_enable) {
-		if (ccdcparam->blk_clamp.sample_pixel < CCDC_SAMPLE_1PIXELS ||
-		    ccdcparam->blk_clamp.sample_pixel > CCDC_SAMPLE_16PIXELS) {
-			dev_dbg(ccdc_cfg.dev,
-				"Invalid value of sample pixel\n");
-			return -EINVAL;
-		}
-		if (ccdcparam->blk_clamp.sample_ln < CCDC_SAMPLE_1LINES ||
-		    ccdcparam->blk_clamp.sample_ln > CCDC_SAMPLE_16LINES) {
-			dev_dbg(ccdc_cfg.dev,
-				"Invalid value of sample lines\n");
-			return -EINVAL;
-		}
-	}
-	return 0;
-}
-
-/* Parameter operations */
-static int ccdc_set_params(void __user *params)
-{
-	struct ccdc_config_params_raw ccdc_raw_params;
-	int x;
-
-	/* only raw module parameters can be set through the IOCTL */
-	if (ccdc_cfg.if_type != VPFE_RAW_BAYER)
-		return -EINVAL;
-
-	x = copy_from_user(&ccdc_raw_params, params, sizeof(ccdc_raw_params));
-	if (x) {
-		dev_dbg(ccdc_cfg.dev, "ccdc_set_params: error in copying ccdcparams, %d\n",
-			x);
-		return -EFAULT;
-	}
-
-	if (!validate_ccdc_param(&ccdc_raw_params)) {
-		memcpy(&ccdc_cfg.bayer.config_params,
-			&ccdc_raw_params,
-			sizeof(ccdc_raw_params));
-		return 0;
-	}
-	return -EINVAL;
-}
-
 /* This function will configure CCDC for YCbCr video capture */
 static void ccdc_config_ycbcr(void)
 {
@@ -939,7 +850,6 @@ static struct ccdc_hw_device ccdc_hw_dev = {
 		.enable = ccdc_enable,
 		.enable_out_to_sdram = ccdc_enable_output_to_sdram,
 		.set_hw_if_params = ccdc_set_hw_if_params,
-		.set_params = ccdc_set_params,
 		.configure = ccdc_configure,
 		.set_buftype = ccdc_set_buftype,
 		.get_buftype = ccdc_get_buftype,
diff --git a/drivers/media/platform/davinci/dm644x_ccdc.c b/drivers/media/platform/davinci/dm644x_ccdc.c
index 740fbc7a8c14..3b2d8a9317b8 100644
--- a/drivers/media/platform/davinci/dm644x_ccdc.c
+++ b/drivers/media/platform/davinci/dm644x_ccdc.c
@@ -17,13 +17,9 @@
  * This module is for configuring CCD controller of DM6446 VPFE to capture
  * Raw yuv or Bayer RGB data from a decoder. CCDC has several modules
  * such as Defect Pixel Correction, Color Space Conversion etc to
- * pre-process the Raw Bayer RGB data, before writing it to SDRAM. This
- * module also allows application to configure individual
- * module parameters through VPFE_CMD_S_CCDC_RAW_PARAMS IOCTL.
- * To do so, application includes dm644x_ccdc.h and vpfe_capture.h header
- * files.  The setparams() API is called by vpfe_capture driver
- * to configure module parameters. This file is named DM644x so that other
- * variants such DM6443 may be supported using the same module.
+ * pre-process the Raw Bayer RGB data, before writing it to SDRAM.
+ * This file is named DM644x so that other variants such DM6443
+ * may be supported using the same module.
  *
  * TODO: Test Raw bayer parameter settings and bayer capture
  * 	 Split module parameter structure to module specific ioctl structs
@@ -216,96 +212,8 @@ static void ccdc_readregs(void)
 	dev_notice(ccdc_cfg.dev, "\nReading 0x%x to VERT_LINES...\n", val);
 }
 
-static int validate_ccdc_param(struct ccdc_config_params_raw *ccdcparam)
-{
-	if (ccdcparam->alaw.enable) {
-		u8 max_gamma = ccdc_gamma_width_max_bit(ccdcparam->alaw.gamma_wd);
-		u8 max_data = ccdc_data_size_max_bit(ccdcparam->data_sz);
-
-		if ((ccdcparam->alaw.gamma_wd > CCDC_GAMMA_BITS_09_0) ||
-		    (ccdcparam->alaw.gamma_wd < CCDC_GAMMA_BITS_15_6) ||
-		    (max_gamma > max_data)) {
-			dev_dbg(ccdc_cfg.dev, "\nInvalid data line select");
-			return -1;
-		}
-	}
-	return 0;
-}
-
-static int ccdc_update_raw_params(struct ccdc_config_params_raw *raw_params)
-{
-	struct ccdc_config_params_raw *config_params =
-				&ccdc_cfg.bayer.config_params;
-	unsigned int *fpc_virtaddr = NULL;
-	unsigned int *fpc_physaddr = NULL;
-
-	memcpy(config_params, raw_params, sizeof(*raw_params));
-	/*
-	 * allocate memory for fault pixel table and copy the user
-	 * values to the table
-	 */
-	if (!config_params->fault_pxl.enable)
-		return 0;
-
-	fpc_physaddr = (unsigned int *)config_params->fault_pxl.fpc_table_addr;
-	fpc_virtaddr = (unsigned int *)phys_to_virt(
-				(unsigned long)fpc_physaddr);
-	/*
-	 * Allocate memory for FPC table if current
-	 * FPC table buffer is not big enough to
-	 * accommodate FPC Number requested
-	 */
-	if (raw_params->fault_pxl.fp_num != config_params->fault_pxl.fp_num) {
-		if (fpc_physaddr != NULL) {
-			free_pages((unsigned long)fpc_virtaddr,
-				   get_order
-				   (config_params->fault_pxl.fp_num *
-				   FP_NUM_BYTES));
-		}
-
-		/* Allocate memory for FPC table */
-		fpc_virtaddr =
-			(unsigned int *)__get_free_pages(GFP_KERNEL | GFP_DMA,
-							 get_order(raw_params->
-							 fault_pxl.fp_num *
-							 FP_NUM_BYTES));
-
-		if (fpc_virtaddr == NULL) {
-			dev_dbg(ccdc_cfg.dev,
-				"\nUnable to allocate memory for FPC");
-			return -EFAULT;
-		}
-		fpc_physaddr =
-		    (unsigned int *)virt_to_phys((void *)fpc_virtaddr);
-	}
-
-	/* Copy number of fault pixels and FPC table */
-	config_params->fault_pxl.fp_num = raw_params->fault_pxl.fp_num;
-	if (copy_from_user(fpc_virtaddr,
-			(void __user *)raw_params->fault_pxl.fpc_table_addr,
-			config_params->fault_pxl.fp_num * FP_NUM_BYTES)) {
-		dev_dbg(ccdc_cfg.dev, "\n copy_from_user failed");
-		return -EFAULT;
-	}
-	config_params->fault_pxl.fpc_table_addr = (unsigned long)fpc_physaddr;
-	return 0;
-}
-
 static int ccdc_close(struct device *dev)
 {
-	struct ccdc_config_params_raw *config_params =
-				&ccdc_cfg.bayer.config_params;
-	unsigned int *fpc_physaddr = NULL, *fpc_virtaddr = NULL;
-
-	fpc_physaddr = (unsigned int *)config_params->fault_pxl.fpc_table_addr;
-
-	if (fpc_physaddr != NULL) {
-		fpc_virtaddr = (unsigned int *)
-		    phys_to_virt((unsigned long)fpc_physaddr);
-		free_pages((unsigned long)fpc_virtaddr,
-			   get_order(config_params->fault_pxl.fp_num *
-			   FP_NUM_BYTES));
-	}
 	return 0;
 }
 
@@ -339,29 +247,6 @@ static void ccdc_sbl_reset(void)
 	vpss_clear_wbl_overflow(VPSS_PCR_CCDC_WBL_O);
 }
 
-/* Parameter operations */
-static int ccdc_set_params(void __user *params)
-{
-	struct ccdc_config_params_raw ccdc_raw_params;
-	int x;
-
-	if (ccdc_cfg.if_type != VPFE_RAW_BAYER)
-		return -EINVAL;
-
-	x = copy_from_user(&ccdc_raw_params, params, sizeof(ccdc_raw_params));
-	if (x) {
-		dev_dbg(ccdc_cfg.dev, "ccdc_set_params: error in copyingccdc params, %d\n",
-			x);
-		return -EFAULT;
-	}
-
-	if (!validate_ccdc_param(&ccdc_raw_params)) {
-		if (!ccdc_update_raw_params(&ccdc_raw_params))
-			return 0;
-	}
-	return -EINVAL;
-}
-
 /*
  * ccdc_config_ycbcr()
  * This function will configure CCDC for YCbCr video capture
@@ -489,32 +374,6 @@ static void ccdc_config_black_compense(struct ccdc_black_compensation *bcomp)
 	regw(val, CCDC_BLKCMP);
 }
 
-static void ccdc_config_fpc(struct ccdc_fault_pixel *fpc)
-{
-	u32 val;
-
-	/* Initially disable FPC */
-	val = CCDC_FPC_DISABLE;
-	regw(val, CCDC_FPC);
-
-	if (!fpc->enable)
-		return;
-
-	/* Configure Fault pixel if needed */
-	regw(fpc->fpc_table_addr, CCDC_FPC_ADDR);
-	dev_dbg(ccdc_cfg.dev, "\nWriting 0x%lx to FPC_ADDR...\n",
-		       (fpc->fpc_table_addr));
-	/* Write the FPC params with FPC disable */
-	val = fpc->fp_num & CCDC_FPC_FPC_NUM_MASK;
-	regw(val, CCDC_FPC);
-
-	dev_dbg(ccdc_cfg.dev, "\nWriting 0x%x to FPC...\n", val);
-	/* read the FPC register */
-	val = regr(CCDC_FPC) | CCDC_FPC_ENABLE;
-	regw(val, CCDC_FPC);
-	dev_dbg(ccdc_cfg.dev, "\nWriting 0x%x to FPC...\n", val);
-}
-
 /*
  * ccdc_config_raw()
  * This function will configure CCDC for Raw capture mode
@@ -569,9 +428,6 @@ static void ccdc_config_raw(void)
 	/* Configure Black level compensation */
 	ccdc_config_black_compense(&config_params->blk_comp);
 
-	/* Configure Fault Pixel Correction */
-	ccdc_config_fpc(&config_params->fault_pxl);
-
 	/* If data size is 8 bit then pack the data */
 	if ((config_params->data_sz == CCDC_DATA_8BITS) ||
 	     config_params->alaw.enable)
@@ -929,7 +785,6 @@ static struct ccdc_hw_device ccdc_hw_dev = {
 		.reset = ccdc_sbl_reset,
 		.enable = ccdc_enable,
 		.set_hw_if_params = ccdc_set_hw_if_params,
-		.set_params = ccdc_set_params,
 		.configure = ccdc_configure,
 		.set_buftype = ccdc_set_buftype,
 		.get_buftype = ccdc_get_buftype,
diff --git a/drivers/media/platform/davinci/vpfe_capture.c b/drivers/media/platform/davinci/vpfe_capture.c
index e3fe3e0635aa..b1bf4a7e8eb7 100644
--- a/drivers/media/platform/davinci/vpfe_capture.c
+++ b/drivers/media/platform/davinci/vpfe_capture.c
@@ -281,45 +281,6 @@ void vpfe_unregister_ccdc_device(struct ccdc_hw_device *dev)
 EXPORT_SYMBOL(vpfe_unregister_ccdc_device);
 
 /*
- * vpfe_get_ccdc_image_format - Get image parameters based on CCDC settings
- */
-static int vpfe_get_ccdc_image_format(struct vpfe_device *vpfe_dev,
-				 struct v4l2_format *f)
-{
-	struct v4l2_rect image_win;
-	enum ccdc_buftype buf_type;
-	enum ccdc_frmfmt frm_fmt;
-
-	memset(f, 0, sizeof(*f));
-	f->type = V4L2_BUF_TYPE_VIDEO_OUTPUT;
-	ccdc_dev->hw_ops.get_image_window(&image_win);
-	f->fmt.pix.width = image_win.width;
-	f->fmt.pix.height = image_win.height;
-	f->fmt.pix.bytesperline = ccdc_dev->hw_ops.get_line_length();
-	f->fmt.pix.sizeimage = f->fmt.pix.bytesperline *
-				f->fmt.pix.height;
-	buf_type = ccdc_dev->hw_ops.get_buftype();
-	f->fmt.pix.pixelformat = ccdc_dev->hw_ops.get_pixel_format();
-	frm_fmt = ccdc_dev->hw_ops.get_frame_format();
-	if (frm_fmt == CCDC_FRMFMT_PROGRESSIVE)
-		f->fmt.pix.field = V4L2_FIELD_NONE;
-	else if (frm_fmt == CCDC_FRMFMT_INTERLACED) {
-		if (buf_type == CCDC_BUFTYPE_FLD_INTERLEAVED)
-			f->fmt.pix.field = V4L2_FIELD_INTERLACED;
-		else if (buf_type == CCDC_BUFTYPE_FLD_SEPARATED)
-			f->fmt.pix.field = V4L2_FIELD_SEQ_TB;
-		else {
-			v4l2_err(&vpfe_dev->v4l2_dev, "Invalid buf_type\n");
-			return -EINVAL;
-		}
-	} else {
-		v4l2_err(&vpfe_dev->v4l2_dev, "Invalid frm_fmt\n");
-		return -EINVAL;
-	}
-	return 0;
-}
-
-/*
  * vpfe_config_ccdc_image_format()
  * For a pix format, configure ccdc to setup the capture
  */
@@ -1697,59 +1658,6 @@ unlock_out:
 	return ret;
 }
 
-
-static long vpfe_param_handler(struct file *file, void *priv,
-		bool valid_prio, unsigned int cmd, void *param)
-{
-	struct vpfe_device *vpfe_dev = video_drvdata(file);
-	int ret;
-
-	v4l2_dbg(2, debug, &vpfe_dev->v4l2_dev, "vpfe_param_handler\n");
-
-	if (vpfe_dev->started) {
-		/* only allowed if streaming is not started */
-		v4l2_dbg(1, debug, &vpfe_dev->v4l2_dev,
-			"device already started\n");
-		return -EBUSY;
-	}
-
-	ret = mutex_lock_interruptible(&vpfe_dev->lock);
-	if (ret)
-		return ret;
-
-	switch (cmd) {
-	case VPFE_CMD_S_CCDC_RAW_PARAMS:
-		v4l2_warn(&vpfe_dev->v4l2_dev,
-			  "VPFE_CMD_S_CCDC_RAW_PARAMS: experimental ioctl\n");
-		if (ccdc_dev->hw_ops.set_params) {
-			ret = ccdc_dev->hw_ops.set_params(param);
-			if (ret) {
-				v4l2_dbg(1, debug, &vpfe_dev->v4l2_dev,
-					"Error setting parameters in CCDC\n");
-				goto unlock_out;
-			}
-			ret = vpfe_get_ccdc_image_format(vpfe_dev,
-							 &vpfe_dev->fmt);
-			if (ret < 0) {
-				v4l2_dbg(1, debug, &vpfe_dev->v4l2_dev,
-					"Invalid image format at CCDC\n");
-				goto unlock_out;
-			}
-		} else {
-			ret = -EINVAL;
-			v4l2_dbg(1, debug, &vpfe_dev->v4l2_dev,
-				"VPFE_CMD_S_CCDC_RAW_PARAMS not supported\n");
-		}
-		break;
-	default:
-		ret = -ENOTTY;
-	}
-unlock_out:
-	mutex_unlock(&vpfe_dev->lock);
-	return ret;
-}
-
-
 /* vpfe capture ioctl operations */
 static const struct v4l2_ioctl_ops vpfe_ioctl_ops = {
 	.vidioc_querycap	 = vpfe_querycap,
@@ -1772,7 +1680,6 @@ static const struct v4l2_ioctl_ops vpfe_ioctl_ops = {
 	.vidioc_cropcap		 = vpfe_cropcap,
 	.vidioc_g_selection	 = vpfe_g_selection,
 	.vidioc_s_selection	 = vpfe_s_selection,
-	.vidioc_default		 = vpfe_param_handler,
 };
 
 static struct vpfe_device *vpfe_initialize(void)
diff --git a/drivers/media/platform/davinci/vpif_capture.c b/drivers/media/platform/davinci/vpif_capture.c
index d78580f9e431..4be6554c56c5 100644
--- a/drivers/media/platform/davinci/vpif_capture.c
+++ b/drivers/media/platform/davinci/vpif_capture.c
@@ -1719,7 +1719,6 @@ vpif_unregister:
  */
 static int vpif_remove(struct platform_device *device)
 {
-	struct common_obj *common;
 	struct channel_obj *ch;
 	int i;
 
@@ -1730,7 +1729,6 @@ static int vpif_remove(struct platform_device *device)
 	for (i = 0; i < VPIF_CAPTURE_MAX_DEVICES; i++) {
 		/* Get the pointer to the channel object */
 		ch = vpif_obj.dev[i];
-		common = &ch->common[VPIF_VIDEO_INDEX];
 		/* Unregister video device */
 		video_unregister_device(&ch->video_dev);
 		kfree(vpif_obj.dev[i]);
diff --git a/drivers/media/platform/davinci/vpif_display.c b/drivers/media/platform/davinci/vpif_display.c
index b5ac6ce626b3..bf982bf86542 100644
--- a/drivers/media/platform/davinci/vpif_display.c
+++ b/drivers/media/platform/davinci/vpif_display.c
@@ -1339,7 +1339,6 @@ vpif_unregister:
  */
 static int vpif_remove(struct platform_device *device)
 {
-	struct common_obj *common;
 	struct channel_obj *ch;
 	int i;
 
@@ -1350,7 +1349,6 @@ static int vpif_remove(struct platform_device *device)
 	for (i = 0; i < VPIF_DISPLAY_MAX_DEVICES; i++) {
 		/* Get the pointer to the channel object */
 		ch = vpif_obj.dev[i];
-		common = &ch->common[VPIF_VIDEO_INDEX];
 		/* Unregister video device */
 		video_unregister_device(&ch->video_dev);
 		kfree(vpif_obj.dev[i]);
diff --git a/drivers/media/platform/omap/omap_vout_vrfb.c b/drivers/media/platform/omap/omap_vout_vrfb.c
index 92c4e1826356..45a553d4f5b2 100644
--- a/drivers/media/platform/omap/omap_vout_vrfb.c
+++ b/drivers/media/platform/omap/omap_vout_vrfb.c
@@ -16,7 +16,6 @@
 #include <media/videobuf-dma-contig.h>
 #include <media/v4l2-device.h>
 
-#include <linux/omap-dma.h>
 #include <video/omapvrfb.h>
 
 #include "omap_voutdef.h"
@@ -63,7 +62,7 @@ static int omap_vout_allocate_vrfb_buffers(struct omap_vout_device *vout,
 /*
  * Wakes up the application once the DMA transfer to VRFB space is completed.
  */
-static void omap_vout_vrfb_dma_tx_callback(int lch, u16 ch_status, void *data)
+static void omap_vout_vrfb_dma_tx_callback(void *data)
 {
 	struct vid_vrfb_dma *t = (struct vid_vrfb_dma *) data;
 
@@ -94,6 +93,7 @@ int omap_vout_setup_vrfb_bufs(struct platform_device *pdev, int vid_num,
 	int ret = 0, i, j;
 	struct omap_vout_device *vout;
 	struct video_device *vfd;
+	dma_cap_mask_t mask;
 	int image_width, image_height;
 	int vrfb_num_bufs = VRFB_NUM_BUFS;
 	struct v4l2_device *v4l2_dev = platform_get_drvdata(pdev);
@@ -131,18 +131,27 @@ int omap_vout_setup_vrfb_bufs(struct platform_device *pdev, int vid_num,
 	/*
 	 * Request and Initialize DMA, for DMA based VRFB transfer
 	 */
-	vout->vrfb_dma_tx.dev_id = OMAP_DMA_NO_DEVICE;
-	vout->vrfb_dma_tx.dma_ch = -1;
-	vout->vrfb_dma_tx.req_status = DMA_CHAN_ALLOTED;
-	ret = omap_request_dma(vout->vrfb_dma_tx.dev_id, "VRFB DMA TX",
-			omap_vout_vrfb_dma_tx_callback,
-			(void *) &vout->vrfb_dma_tx, &vout->vrfb_dma_tx.dma_ch);
-	if (ret < 0) {
+	dma_cap_zero(mask);
+	dma_cap_set(DMA_INTERLEAVE, mask);
+	vout->vrfb_dma_tx.chan = dma_request_chan_by_mask(&mask);
+	if (IS_ERR(vout->vrfb_dma_tx.chan)) {
 		vout->vrfb_dma_tx.req_status = DMA_CHAN_NOT_ALLOTED;
+	} else {
+		size_t xt_size = sizeof(struct dma_interleaved_template) +
+				 sizeof(struct data_chunk);
+
+		vout->vrfb_dma_tx.xt = kzalloc(xt_size, GFP_KERNEL);
+		if (!vout->vrfb_dma_tx.xt) {
+			dma_release_channel(vout->vrfb_dma_tx.chan);
+			vout->vrfb_dma_tx.req_status = DMA_CHAN_NOT_ALLOTED;
+		}
+	}
+
+	if (vout->vrfb_dma_tx.req_status == DMA_CHAN_NOT_ALLOTED)
 		dev_info(&pdev->dev,
 			 ": failed to allocate DMA Channel for video%d\n",
 			 vfd->minor);
-	}
+
 	init_waitqueue_head(&vout->vrfb_dma_tx.wait);
 
 	/* statically allocated the VRFB buffer is done through
@@ -177,7 +186,9 @@ void omap_vout_release_vrfb(struct omap_vout_device *vout)
 
 	if (vout->vrfb_dma_tx.req_status == DMA_CHAN_ALLOTED) {
 		vout->vrfb_dma_tx.req_status = DMA_CHAN_NOT_ALLOTED;
-		omap_free_dma(vout->vrfb_dma_tx.dma_ch);
+		kfree(vout->vrfb_dma_tx.xt);
+		dmaengine_terminate_sync(vout->vrfb_dma_tx.chan);
+		dma_release_channel(vout->vrfb_dma_tx.chan);
 	}
 }
 
@@ -219,70 +230,84 @@ int omap_vout_vrfb_buffer_setup(struct omap_vout_device *vout,
 }
 
 int omap_vout_prepare_vrfb(struct omap_vout_device *vout,
-				struct videobuf_buffer *vb)
+			   struct videobuf_buffer *vb)
 {
-	dma_addr_t dmabuf;
-	struct vid_vrfb_dma *tx;
+	struct dma_async_tx_descriptor *tx;
+	enum dma_ctrl_flags flags;
+	struct dma_chan *chan = vout->vrfb_dma_tx.chan;
+	struct dma_device *dmadev = chan->device;
+	struct dma_interleaved_template *xt = vout->vrfb_dma_tx.xt;
+	dma_cookie_t cookie;
+	enum dma_status status;
 	enum dss_rotation rotation;
-	u32 dest_frame_index = 0, src_element_index = 0;
-	u32 dest_element_index = 0, src_frame_index = 0;
-	u32 elem_count = 0, frame_count = 0, pixsize = 2;
+	size_t dst_icg;
+	u32 pixsize;
 
 	if (!is_rotation_enabled(vout))
 		return 0;
 
-	dmabuf = vout->buf_phy_addr[vb->i];
 	/* If rotation is enabled, copy input buffer into VRFB
 	 * memory space using DMA. We are copying input buffer
 	 * into VRFB memory space of desired angle and DSS will
 	 * read image VRFB memory for 0 degree angle
 	 */
+
 	pixsize = vout->bpp * vout->vrfb_bpp;
-	/*
-	 * DMA transfer in double index mode
-	 */
+	dst_icg = ((MAX_PIXELS_PER_LINE * pixsize) -
+		  (vout->pix.width * vout->bpp)) + 1;
+
+	xt->src_start = vout->buf_phy_addr[vb->i];
+	xt->dst_start = vout->vrfb_context[vb->i].paddr[0];
+
+	xt->numf = vout->pix.height;
+	xt->frame_size = 1;
+	xt->sgl[0].size = vout->pix.width * vout->bpp;
+	xt->sgl[0].icg = dst_icg;
+
+	xt->dir = DMA_MEM_TO_MEM;
+	xt->src_sgl = false;
+	xt->src_inc = true;
+	xt->dst_sgl = true;
+	xt->dst_inc = true;
+
+	tx = dmadev->device_prep_interleaved_dma(chan, xt, flags);
+	if (tx == NULL) {
+		pr_err("%s: DMA interleaved prep error\n", __func__);
+		return -EINVAL;
+	}
 
-	/* Frame index */
-	dest_frame_index = ((MAX_PIXELS_PER_LINE * pixsize) -
-			(vout->pix.width * vout->bpp)) + 1;
-
-	/* Source and destination parameters */
-	src_element_index = 0;
-	src_frame_index = 0;
-	dest_element_index = 1;
-	/* Number of elements per frame */
-	elem_count = vout->pix.width * vout->bpp;
-	frame_count = vout->pix.height;
-	tx = &vout->vrfb_dma_tx;
-	tx->tx_status = 0;
-	omap_set_dma_transfer_params(tx->dma_ch, OMAP_DMA_DATA_TYPE_S32,
-			(elem_count / 4), frame_count, OMAP_DMA_SYNC_ELEMENT,
-			tx->dev_id, 0x0);
-	/* src_port required only for OMAP1 */
-	omap_set_dma_src_params(tx->dma_ch, 0, OMAP_DMA_AMODE_POST_INC,
-			dmabuf, src_element_index, src_frame_index);
-	/*set dma source burst mode for VRFB */
-	omap_set_dma_src_burst_mode(tx->dma_ch, OMAP_DMA_DATA_BURST_16);
-	rotation = calc_rotation(vout);
+	tx->callback = omap_vout_vrfb_dma_tx_callback;
+	tx->callback_param = &vout->vrfb_dma_tx;
+
+	cookie = dmaengine_submit(tx);
+	if (dma_submit_error(cookie)) {
+		pr_err("%s: dmaengine_submit failed (%d)\n", __func__, cookie);
+		return -EINVAL;
+	}
 
-	/* dest_port required only for OMAP1 */
-	omap_set_dma_dest_params(tx->dma_ch, 0, OMAP_DMA_AMODE_DOUBLE_IDX,
-			vout->vrfb_context[vb->i].paddr[0], dest_element_index,
-			dest_frame_index);
-	/*set dma dest burst mode for VRFB */
-	omap_set_dma_dest_burst_mode(tx->dma_ch, OMAP_DMA_DATA_BURST_16);
-	omap_dma_set_global_params(DMA_DEFAULT_ARB_RATE, 0x20, 0);
+	vout->vrfb_dma_tx.tx_status = 0;
+	dma_async_issue_pending(chan);
 
-	omap_start_dma(tx->dma_ch);
-	wait_event_interruptible_timeout(tx->wait, tx->tx_status == 1,
+	wait_event_interruptible_timeout(vout->vrfb_dma_tx.wait,
+					 vout->vrfb_dma_tx.tx_status == 1,
 					 VRFB_TX_TIMEOUT);
 
-	if (tx->tx_status == 0) {
-		omap_stop_dma(tx->dma_ch);
+	status = dma_async_is_tx_complete(chan, cookie, NULL, NULL);
+
+	if (vout->vrfb_dma_tx.tx_status == 0) {
+		pr_err("%s: Timeout while waiting for DMA\n", __func__);
+		dmaengine_terminate_sync(chan);
+		return -EINVAL;
+	} else if (status != DMA_COMPLETE) {
+		pr_err("%s: DMA completion %s status\n", __func__,
+		       status == DMA_ERROR ? "error" : "busy");
+		dmaengine_terminate_sync(chan);
 		return -EINVAL;
 	}
+
 	/* Store buffers physical address into an array. Addresses
 	 * from this array will be used to configure DSS */
+	rotation = calc_rotation(vout);
 	vout->queued_buf_addr[vb->i] = (u8 *)
 		vout->vrfb_context[vb->i].paddr[rotation];
 	return 0;
diff --git a/drivers/media/platform/omap/omap_voutdef.h b/drivers/media/platform/omap/omap_voutdef.h
index 80c79fabdf95..56b630b1c8b4 100644
--- a/drivers/media/platform/omap/omap_voutdef.h
+++ b/drivers/media/platform/omap/omap_voutdef.h
@@ -14,6 +14,7 @@
 #include <media/v4l2-ctrls.h>
 #include <video/omapfb_dss.h>
 #include <video/omapvrfb.h>
+#include <linux/dmaengine.h>
 
 #define YUYV_BPP        2
 #define RGB565_BPP      2
@@ -81,8 +82,9 @@ enum vout_rotaion_type {
  * for VRFB hidden buffer
  */
 struct vid_vrfb_dma {
-	int dev_id;
-	int dma_ch;
+	struct dma_chan *chan;
+	struct dma_interleaved_template *xt;
+
 	int req_status;
 	int tx_status;
 	wait_queue_head_t wait;
diff --git a/drivers/media/platform/qcom/venus/core.c b/drivers/media/platform/qcom/venus/core.c
index 776d2bae6979..41eef376eb2d 100644
--- a/drivers/media/platform/qcom/venus/core.c
+++ b/drivers/media/platform/qcom/venus/core.c
@@ -76,7 +76,7 @@ static void venus_sys_error_handler(struct work_struct *work)
 	hfi_core_deinit(core, true);
 	hfi_destroy(core);
 	mutex_lock(&core->lock);
-	venus_shutdown(&core->dev_fw);
+	venus_shutdown(core->dev);
 
 	pm_runtime_put_sync(core->dev);
 
@@ -84,7 +84,7 @@ static void venus_sys_error_handler(struct work_struct *work)
 
 	pm_runtime_get_sync(core->dev);
 
-	ret |= venus_boot(core->dev, &core->dev_fw, core->res->fwname);
+	ret |= venus_boot(core->dev, core->res->fwname);
 
 	ret |= hfi_core_resume(core, true);
 
@@ -137,7 +137,7 @@ static int venus_clks_enable(struct venus_core *core)
 
 	return 0;
 err:
-	while (--i)
+	while (i--)
 		clk_disable_unprepare(core->clks[i]);
 
 	return ret;
@@ -207,7 +207,7 @@ static int venus_probe(struct platform_device *pdev)
 	if (ret < 0)
 		goto err_runtime_disable;
 
-	ret = venus_boot(dev, &core->dev_fw, core->res->fwname);
+	ret = venus_boot(dev, core->res->fwname);
 	if (ret)
 		goto err_runtime_disable;
 
@@ -238,7 +238,7 @@ err_dev_unregister:
 err_core_deinit:
 	hfi_core_deinit(core, false);
 err_venus_shutdown:
-	venus_shutdown(&core->dev_fw);
+	venus_shutdown(dev);
 err_runtime_disable:
 	pm_runtime_set_suspended(dev);
 	pm_runtime_disable(dev);
@@ -259,7 +259,7 @@ static int venus_remove(struct platform_device *pdev)
 	WARN_ON(ret);
 
 	hfi_destroy(core);
-	venus_shutdown(&core->dev_fw);
+	venus_shutdown(dev);
 	of_platform_depopulate(dev);
 
 	pm_runtime_put_sync(dev);
@@ -270,8 +270,7 @@ static int venus_remove(struct platform_device *pdev)
 	return ret;
 }
 
-#ifdef CONFIG_PM
-static int venus_runtime_suspend(struct device *dev)
+static __maybe_unused int venus_runtime_suspend(struct device *dev)
 {
 	struct venus_core *core = dev_get_drvdata(dev);
 	int ret;
@@ -283,7 +282,7 @@ static int venus_runtime_suspend(struct device *dev)
 	return ret;
 }
 
-static int venus_runtime_resume(struct device *dev)
+static __maybe_unused int venus_runtime_resume(struct device *dev)
 {
 	struct venus_core *core = dev_get_drvdata(dev);
 	int ret;
@@ -302,7 +301,6 @@ err_clks_disable:
 	venus_clks_disable(core);
 	return ret;
 }
-#endif
 
 static const struct dev_pm_ops venus_pm_ops = {
 	SET_SYSTEM_SLEEP_PM_OPS(pm_runtime_force_suspend,
diff --git a/drivers/media/platform/qcom/venus/core.h b/drivers/media/platform/qcom/venus/core.h
index e542700eee32..cba092bcb76d 100644
--- a/drivers/media/platform/qcom/venus/core.h
+++ b/drivers/media/platform/qcom/venus/core.h
@@ -101,7 +101,6 @@ struct venus_core {
 	struct device *dev;
 	struct device *dev_dec;
 	struct device *dev_enc;
-	struct device dev_fw;
 	struct mutex lock;
 	struct list_head instances;
 	atomic_t insts_count;
diff --git a/drivers/media/platform/qcom/venus/firmware.c b/drivers/media/platform/qcom/venus/firmware.c
index 1b1a4f355918..521d4b36c090 100644
--- a/drivers/media/platform/qcom/venus/firmware.c
+++ b/drivers/media/platform/qcom/venus/firmware.c
@@ -12,97 +12,87 @@
  *
  */
 
-#include <linux/dma-mapping.h>
+#include <linux/device.h>
 #include <linux/firmware.h>
 #include <linux/kernel.h>
+#include <linux/io.h>
 #include <linux/of.h>
-#include <linux/of_reserved_mem.h>
-#include <linux/slab.h>
+#include <linux/of_address.h>
 #include <linux/qcom_scm.h>
+#include <linux/sizes.h>
 #include <linux/soc/qcom/mdt_loader.h>
 
 #include "firmware.h"
 
 #define VENUS_PAS_ID			9
-#define VENUS_FW_MEM_SIZE		SZ_8M
+#define VENUS_FW_MEM_SIZE		(6 * SZ_1M)
 
-static void device_release_dummy(struct device *dev)
-{
-	of_reserved_mem_device_release(dev);
-}
-
-int venus_boot(struct device *parent, struct device *fw_dev, const char *fwname)
+int venus_boot(struct device *dev, const char *fwname)
 {
 	const struct firmware *mdt;
+	struct device_node *node;
 	phys_addr_t mem_phys;
+	struct resource r;
 	ssize_t fw_size;
 	size_t mem_size;
 	void *mem_va;
 	int ret;
 
-	if (!qcom_scm_is_available())
+	if (!IS_ENABLED(CONFIG_QCOM_MDT_LOADER) || !qcom_scm_is_available())
 		return -EPROBE_DEFER;
 
-	fw_dev->parent = parent;
-	fw_dev->release = device_release_dummy;
+	node = of_parse_phandle(dev->of_node, "memory-region", 0);
+	if (!node) {
+		dev_err(dev, "no memory-region specified\n");
+		return -EINVAL;
+	}
 
-	ret = dev_set_name(fw_dev, "%s:%s", dev_name(parent), "firmware");
+	ret = of_address_to_resource(node, 0, &r);
 	if (ret)
 		return ret;
 
-	ret = device_register(fw_dev);
-	if (ret < 0)
-		return ret;
+	mem_phys = r.start;
+	mem_size = resource_size(&r);
 
-	ret = of_reserved_mem_device_init_by_idx(fw_dev, parent->of_node, 0);
-	if (ret)
-		goto err_unreg_device;
+	if (mem_size < VENUS_FW_MEM_SIZE)
+		return -EINVAL;
 
-	mem_size = VENUS_FW_MEM_SIZE;
-
-	mem_va = dmam_alloc_coherent(fw_dev, mem_size, &mem_phys, GFP_KERNEL);
+	mem_va = memremap(r.start, mem_size, MEMREMAP_WC);
 	if (!mem_va) {
-		ret = -ENOMEM;
-		goto err_unreg_device;
+		dev_err(dev, "unable to map memory region: %pa+%zx\n",
+			&r.start, mem_size);
+		return -ENOMEM;
 	}
 
-	ret = request_firmware(&mdt, fwname, fw_dev);
+	ret = request_firmware(&mdt, fwname, dev);
 	if (ret < 0)
-		goto err_unreg_device;
+		goto err_unmap;
 
 	fw_size = qcom_mdt_get_size(mdt);
 	if (fw_size < 0) {
 		ret = fw_size;
 		release_firmware(mdt);
-		goto err_unreg_device;
+		goto err_unmap;
 	}
 
-	ret = qcom_mdt_load(fw_dev, mdt, fwname, VENUS_PAS_ID, mem_va, mem_phys,
+	ret = qcom_mdt_load(dev, mdt, fwname, VENUS_PAS_ID, mem_va, mem_phys,
 			    mem_size);
 
 	release_firmware(mdt);
 
 	if (ret)
-		goto err_unreg_device;
+		goto err_unmap;
 
 	ret = qcom_scm_pas_auth_and_reset(VENUS_PAS_ID);
 	if (ret)
-		goto err_unreg_device;
-
-	return 0;
+		goto err_unmap;
 
-err_unreg_device:
-	device_unregister(fw_dev);
+err_unmap:
+	memunmap(mem_va);
 	return ret;
 }
 
-int venus_shutdown(struct device *fw_dev)
+int venus_shutdown(struct device *dev)
 {
-	int ret;
-
-	ret = qcom_scm_pas_shutdown(VENUS_PAS_ID);
-	device_unregister(fw_dev);
-	memset(fw_dev, 0, sizeof(*fw_dev));
-
-	return ret;
+	return qcom_scm_pas_shutdown(VENUS_PAS_ID);
 }
diff --git a/drivers/media/platform/qcom/venus/firmware.h b/drivers/media/platform/qcom/venus/firmware.h
index f81a98979798..428efb56d339 100644
--- a/drivers/media/platform/qcom/venus/firmware.h
+++ b/drivers/media/platform/qcom/venus/firmware.h
@@ -16,8 +16,7 @@
 
 struct device;
 
-int venus_boot(struct device *parent, struct device *fw_dev,
-	       const char *fwname);
-int venus_shutdown(struct device *fw_dev);
+int venus_boot(struct device *dev, const char *fwname);
+int venus_shutdown(struct device *dev);
 
 #endif
diff --git a/drivers/media/platform/qcom/venus/hfi_msgs.c b/drivers/media/platform/qcom/venus/hfi_msgs.c
index f8841713e417..a681ae5381d6 100644
--- a/drivers/media/platform/qcom/venus/hfi_msgs.c
+++ b/drivers/media/platform/qcom/venus/hfi_msgs.c
@@ -239,11 +239,12 @@ static void hfi_sys_init_done(struct venus_core *core, struct venus_inst *inst,
 			break;
 		}
 
-		if (!error) {
-			rem_bytes -= read_bytes;
-			data += read_bytes;
-			num_properties--;
-		}
+		if (error)
+			break;
+
+		rem_bytes -= read_bytes;
+		data += read_bytes;
+		num_properties--;
 	}
 
 err_no_prop:
diff --git a/drivers/media/platform/sti/bdisp/bdisp-debug.c b/drivers/media/platform/sti/bdisp/bdisp-debug.c
index 7af66860d624..2cc289e4dea1 100644
--- a/drivers/media/platform/sti/bdisp/bdisp-debug.c
+++ b/drivers/media/platform/sti/bdisp/bdisp-debug.c
@@ -104,7 +104,7 @@ static void bdisp_dbg_dump_ins(struct seq_file *s, u32 val)
 	if (val & BLT_INS_IRQ)
 		seq_puts(s, "IRQ - ");
 
-	seq_puts(s, "\n");
+	seq_putc(s, '\n');
 }
 
 static void bdisp_dbg_dump_tty(struct seq_file *s, u32 val)
@@ -153,7 +153,7 @@ static void bdisp_dbg_dump_tty(struct seq_file *s, u32 val)
 	if (val & BLT_TTY_BIG_END)
 		seq_puts(s, "BigEndian - ");
 
-	seq_puts(s, "\n");
+	seq_putc(s, '\n');
 }
 
 static void bdisp_dbg_dump_xy(struct seq_file *s, u32 val, char *name)
@@ -230,7 +230,7 @@ static void bdisp_dbg_dump_sty(struct seq_file *s,
 		seq_puts(s, "BigEndian - ");
 
 done:
-	seq_puts(s, "\n");
+	seq_putc(s, '\n');
 }
 
 static void bdisp_dbg_dump_fctl(struct seq_file *s, u32 val)
@@ -247,7 +247,7 @@ static void bdisp_dbg_dump_fctl(struct seq_file *s, u32 val)
 	else if ((val & BLT_FCTL_HV_SCALE) == BLT_FCTL_HV_SAMPLE)
 		seq_puts(s, "Sample Chroma");
 
-	seq_puts(s, "\n");
+	seq_putc(s, '\n');
 }
 
 static void bdisp_dbg_dump_rsf(struct seq_file *s, u32 val, char *name)
@@ -266,7 +266,7 @@ static void bdisp_dbg_dump_rsf(struct seq_file *s, u32 val, char *name)
 	seq_printf(s, "V: %d(6.10) / scale~%dx0.1", inc, 1024 * 10 / inc);
 
 done:
-	seq_puts(s, "\n");
+	seq_putc(s, '\n');
 }
 
 static void bdisp_dbg_dump_rzi(struct seq_file *s, u32 val, char *name)
@@ -281,7 +281,7 @@ static void bdisp_dbg_dump_rzi(struct seq_file *s, u32 val, char *name)
 	seq_printf(s, "V: init=%d repeat=%d", val & 0x3FF, (val >> 12) & 7);
 
 done:
-	seq_puts(s, "\n");
+	seq_putc(s, '\n');
 }
 
 static void bdisp_dbg_dump_ivmx(struct seq_file *s,
@@ -293,7 +293,7 @@ static void bdisp_dbg_dump_ivmx(struct seq_file *s,
 	seq_printf(s, "IVMX3\t0x%08X\t", c3);
 
 	if (!c0 && !c1 && !c2 && !c3) {
-		seq_puts(s, "\n");
+		seq_putc(s, '\n');
 		return;
 	}
 
diff --git a/drivers/media/platform/vimc/vimc-capture.c b/drivers/media/platform/vimc/vimc-capture.c
index 14cb32e21130..88a1e5670c72 100644
--- a/drivers/media/platform/vimc/vimc-capture.c
+++ b/drivers/media/platform/vimc/vimc-capture.c
@@ -517,21 +517,22 @@ static int vimc_cap_remove(struct platform_device *pdev)
 	return 0;
 }
 
+static const struct platform_device_id vimc_cap_driver_ids[] = {
+	{
+		.name           = VIMC_CAP_DRV_NAME,
+	},
+	{ }
+};
+
 static struct platform_driver vimc_cap_pdrv = {
 	.probe		= vimc_cap_probe,
 	.remove		= vimc_cap_remove,
+	.id_table	= vimc_cap_driver_ids,
 	.driver		= {
 		.name	= VIMC_CAP_DRV_NAME,
 	},
 };
 
-static const struct platform_device_id vimc_cap_driver_ids[] = {
-	{
-		.name           = VIMC_CAP_DRV_NAME,
-	},
-	{ }
-};
-
 module_platform_driver(vimc_cap_pdrv);
 
 MODULE_DEVICE_TABLE(platform, vimc_cap_driver_ids);
diff --git a/drivers/media/platform/vimc/vimc-debayer.c b/drivers/media/platform/vimc/vimc-debayer.c
index 35b15bd4d61d..033a131f67af 100644
--- a/drivers/media/platform/vimc/vimc-debayer.c
+++ b/drivers/media/platform/vimc/vimc-debayer.c
@@ -577,21 +577,22 @@ static int vimc_deb_remove(struct platform_device *pdev)
 	return 0;
 }
 
+static const struct platform_device_id vimc_deb_driver_ids[] = {
+	{
+		.name           = VIMC_DEB_DRV_NAME,
+	},
+	{ }
+};
+
 static struct platform_driver vimc_deb_pdrv = {
 	.probe		= vimc_deb_probe,
 	.remove		= vimc_deb_remove,
+	.id_table	= vimc_deb_driver_ids,
 	.driver		= {
 		.name	= VIMC_DEB_DRV_NAME,
 	},
 };
 
-static const struct platform_device_id vimc_deb_driver_ids[] = {
-	{
-		.name           = VIMC_DEB_DRV_NAME,
-	},
-	{ }
-};
-
 module_platform_driver(vimc_deb_pdrv);
 
 MODULE_DEVICE_TABLE(platform, vimc_deb_driver_ids);
diff --git a/drivers/media/platform/vimc/vimc-scaler.c b/drivers/media/platform/vimc/vimc-scaler.c
index fe77505d2679..0a3e086e12f3 100644
--- a/drivers/media/platform/vimc/vimc-scaler.c
+++ b/drivers/media/platform/vimc/vimc-scaler.c
@@ -431,21 +431,22 @@ static int vimc_sca_remove(struct platform_device *pdev)
 	return 0;
 }
 
+static const struct platform_device_id vimc_sca_driver_ids[] = {
+	{
+		.name           = VIMC_SCA_DRV_NAME,
+	},
+	{ }
+};
+
 static struct platform_driver vimc_sca_pdrv = {
 	.probe		= vimc_sca_probe,
 	.remove		= vimc_sca_remove,
+	.id_table	= vimc_sca_driver_ids,
 	.driver		= {
 		.name	= VIMC_SCA_DRV_NAME,
 	},
 };
 
-static const struct platform_device_id vimc_sca_driver_ids[] = {
-	{
-		.name           = VIMC_SCA_DRV_NAME,
-	},
-	{ }
-};
-
 module_platform_driver(vimc_sca_pdrv);
 
 MODULE_DEVICE_TABLE(platform, vimc_sca_driver_ids);
diff --git a/drivers/media/platform/vimc/vimc-sensor.c b/drivers/media/platform/vimc/vimc-sensor.c
index ebdbbe8c05ed..615c2b18dcfc 100644
--- a/drivers/media/platform/vimc/vimc-sensor.c
+++ b/drivers/media/platform/vimc/vimc-sensor.c
@@ -365,21 +365,22 @@ static int vimc_sen_remove(struct platform_device *pdev)
 	return 0;
 }
 
+static const struct platform_device_id vimc_sen_driver_ids[] = {
+	{
+		.name           = VIMC_SEN_DRV_NAME,
+	},
+	{ }
+};
+
 static struct platform_driver vimc_sen_pdrv = {
 	.probe		= vimc_sen_probe,
 	.remove		= vimc_sen_remove,
+	.id_table	= vimc_sen_driver_ids,
 	.driver		= {
 		.name	= VIMC_SEN_DRV_NAME,
 	},
 };
 
-static const struct platform_device_id vimc_sen_driver_ids[] = {
-	{
-		.name           = VIMC_SEN_DRV_NAME,
-	},
-	{ }
-};
-
 module_platform_driver(vimc_sen_pdrv);
 
 MODULE_DEVICE_TABLE(platform, vimc_sen_driver_ids);
diff --git a/drivers/media/radio/radio-wl1273.c b/drivers/media/radio/radio-wl1273.c
index 7240223dc15a..17e82a9a0109 100644
--- a/drivers/media/radio/radio-wl1273.c
+++ b/drivers/media/radio/radio-wl1273.c
@@ -610,10 +610,21 @@ static int wl1273_fm_start(struct wl1273_device *radio, int new_mode)
 			}
 		}
 
-		if (radio->rds_on)
+		if (radio->rds_on) {
 			r = core->write(core, WL1273_RDS_DATA_ENB, 1);
-		else
+			if (r) {
+				dev_err(dev, "%s: RDS_DATA_ENB ON fails\n",
+					__func__);
+				goto fail;
+			}
+		} else {
 			r = core->write(core, WL1273_RDS_DATA_ENB, 0);
+			if (r) {
+				dev_err(dev, "%s: RDS_DATA_ENB OFF fails\n",
+					__func__);
+				goto fail;
+			}
+		}
 	} else {
 		dev_warn(dev, "%s: Illegal mode.\n", __func__);
 	}
diff --git a/drivers/media/rc/ir-lirc-codec.c b/drivers/media/rc/ir-lirc-codec.c
index a30af91710fe..d2223c04e9ad 100644
--- a/drivers/media/rc/ir-lirc-codec.c
+++ b/drivers/media/rc/ir-lirc-codec.c
@@ -266,7 +266,7 @@ static long ir_lirc_ioctl(struct file *filep, unsigned int cmd,
 		if (!dev->rx_resolution)
 			return -ENOTTY;
 
-		val = dev->rx_resolution;
+		val = dev->rx_resolution / 1000;
 		break;
 
 	case LIRC_SET_WIDEBAND_RECEIVER:
diff --git a/drivers/media/tuners/fc0011.c b/drivers/media/tuners/fc0011.c
index 192b1c7740df..145407dee3db 100644
--- a/drivers/media/tuners/fc0011.c
+++ b/drivers/media/tuners/fc0011.c
@@ -342,6 +342,7 @@ static int fc0011_set_params(struct dvb_frontend *fe)
 	switch (vco_sel) {
 	default:
 		WARN_ON(1);
+		return -EINVAL;
 	case 0:
 		if (vco_cal < 8) {
 			regs[FC11_REG_VCOSEL] &= ~(FC11_VCOSEL_1 | FC11_VCOSEL_2);
diff --git a/drivers/media/tuners/mxl5005s.c b/drivers/media/tuners/mxl5005s.c
index 353744fee053..dd59c2c0e4a5 100644
--- a/drivers/media/tuners/mxl5005s.c
+++ b/drivers/media/tuners/mxl5005s.c
@@ -2737,8 +2737,6 @@ static u16 MXL_TuneRF(struct dvb_frontend *fe, u32 RF_Freq)
 		status += MXL_ControlWrite(fe, TG_LO_DIVVAL,	0x0);
 		status += MXL_ControlWrite(fe, TG_LO_SELVAL,	0x7);
 		divider_val = 2 ;
-		Fmax = FmaxBin ;
-		Fmin = FminBin ;
 	}
 
 	/* TG_DIV_VAL */
diff --git a/drivers/media/usb/au0828/au0828-input.c b/drivers/media/usb/au0828/au0828-input.c
index 9ec919c68482..9d82ec0a4b64 100644
--- a/drivers/media/usb/au0828/au0828-input.c
+++ b/drivers/media/usb/au0828/au0828-input.c
@@ -351,7 +351,7 @@ int au0828_rc_register(struct au0828_dev *dev)
 	if (err)
 		goto error;
 
-	pr_info("Remote controller %s initalized\n", ir->name);
+	pr_info("Remote controller %s initialized\n", ir->name);
 
 	return 0;
 
diff --git a/drivers/media/usb/dvb-usb-v2/lmedm04.c b/drivers/media/usb/dvb-usb-v2/lmedm04.c
index 594360a63c18..a91fdad8f8d4 100644
--- a/drivers/media/usb/dvb-usb-v2/lmedm04.c
+++ b/drivers/media/usb/dvb-usb-v2/lmedm04.c
@@ -207,15 +207,13 @@ static int lme2510_stream_restart(struct dvb_usb_device *d)
 	struct lme2510_state *st = d->priv;
 	u8 all_pids[] = LME_ALL_PIDS;
 	u8 stream_on[] = LME_ST_ON_W;
-	int ret;
 	u8 rbuff[1];
 	if (st->pid_off)
-		ret = lme2510_usb_talk(d, all_pids, sizeof(all_pids),
-			rbuff, sizeof(rbuff));
+		lme2510_usb_talk(d, all_pids, sizeof(all_pids),
+				 rbuff, sizeof(rbuff));
 	/*Restart Stream Command*/
-	ret = lme2510_usb_talk(d, stream_on, sizeof(stream_on),
-			rbuff, sizeof(rbuff));
-	return ret;
+	return lme2510_usb_talk(d, stream_on, sizeof(stream_on),
+				rbuff, sizeof(rbuff));
 }
 
 static int lme2510_enable_pid(struct dvb_usb_device *d, u8 index, u16 pid_out)
diff --git a/drivers/media/usb/dvb-usb/dib0700_core.c b/drivers/media/usb/dvb-usb/dib0700_core.c
index 08acdd32e412..bea1b4764a66 100644
--- a/drivers/media/usb/dvb-usb/dib0700_core.c
+++ b/drivers/media/usb/dvb-usb/dib0700_core.c
@@ -215,13 +215,14 @@ static int dib0700_i2c_xfer_new(struct i2c_adapter *adap, struct i2c_msg *msg,
 						 USB_CTRL_GET_TIMEOUT);
 			if (result < 0) {
 				deb_info("i2c read error (status = %d)\n", result);
-				break;
+				goto unlock;
 			}
 
 			if (msg[i].len > sizeof(st->buf)) {
 				deb_info("buffer too small to fit %d bytes\n",
 					 msg[i].len);
-				return -EIO;
+				result = -EIO;
+				goto unlock;
 			}
 
 			memcpy(msg[i].buf, st->buf, msg[i].len);
@@ -233,8 +234,8 @@ static int dib0700_i2c_xfer_new(struct i2c_adapter *adap, struct i2c_msg *msg,
 			/* Write request */
 			if (mutex_lock_interruptible(&d->usb_mutex) < 0) {
 				err("could not acquire lock");
-				mutex_unlock(&d->i2c_mutex);
-				return -EINTR;
+				result = -EINTR;
+				goto unlock;
 			}
 			st->buf[0] = REQUEST_NEW_I2C_WRITE;
 			st->buf[1] = msg[i].addr << 1;
@@ -247,7 +248,9 @@ static int dib0700_i2c_xfer_new(struct i2c_adapter *adap, struct i2c_msg *msg,
 			if (msg[i].len > sizeof(st->buf) - 4) {
 				deb_info("i2c message to big: %d\n",
 					 msg[i].len);
-				return -EIO;
+				mutex_unlock(&d->usb_mutex);
+				result = -EIO;
+				goto unlock;
 			}
 
 			/* The Actual i2c payload */
@@ -269,8 +272,11 @@ static int dib0700_i2c_xfer_new(struct i2c_adapter *adap, struct i2c_msg *msg,
 			}
 		}
 	}
+	result = i;
+
+unlock:
 	mutex_unlock(&d->i2c_mutex);
-	return i;
+	return result;
 }
 
 /*
@@ -281,7 +287,7 @@ static int dib0700_i2c_xfer_legacy(struct i2c_adapter *adap,
 {
 	struct dvb_usb_device *d = i2c_get_adapdata(adap);
 	struct dib0700_state *st = d->priv;
-	int i,len;
+	int i, len, result;
 
 	if (mutex_lock_interruptible(&d->i2c_mutex) < 0)
 		return -EINTR;
@@ -298,7 +304,8 @@ static int dib0700_i2c_xfer_legacy(struct i2c_adapter *adap,
 		if (msg[i].len > sizeof(st->buf) - 2) {
 			deb_info("i2c xfer to big: %d\n",
 				msg[i].len);
-			return -EIO;
+			result = -EIO;
+			goto unlock;
 		}
 		memcpy(&st->buf[2], msg[i].buf, msg[i].len);
 
@@ -313,13 +320,15 @@ static int dib0700_i2c_xfer_legacy(struct i2c_adapter *adap,
 			if (len <= 0) {
 				deb_info("I2C read failed on address 0x%02x\n",
 						msg[i].addr);
-				break;
+				result = -EIO;
+				goto unlock;
 			}
 
 			if (msg[i + 1].len > sizeof(st->buf)) {
 				deb_info("i2c xfer buffer to small for %d\n",
 					msg[i].len);
-				return -EIO;
+				result = -EIO;
+				goto unlock;
 			}
 			memcpy(msg[i + 1].buf, st->buf, msg[i + 1].len);
 
@@ -328,14 +337,17 @@ static int dib0700_i2c_xfer_legacy(struct i2c_adapter *adap,
 			i++;
 		} else {
 			st->buf[0] = REQUEST_I2C_WRITE;
-			if (dib0700_ctrl_wr(d, st->buf, msg[i].len + 2) < 0)
-				break;
+			result = dib0700_ctrl_wr(d, st->buf, msg[i].len + 2);
+			if (result < 0)
+				goto unlock;
 		}
 	}
+	result = i;
+unlock:
 	mutex_unlock(&d->usb_mutex);
 	mutex_unlock(&d->i2c_mutex);
 
-	return i;
+	return result;
 }
 
 static int dib0700_i2c_xfer(struct i2c_adapter *adap, struct i2c_msg *msg,
diff --git a/drivers/media/usb/em28xx/em28xx-cards.c b/drivers/media/usb/em28xx/em28xx-cards.c
index 146341aeb782..4c57fd7929cb 100644
--- a/drivers/media/usb/em28xx/em28xx-cards.c
+++ b/drivers/media/usb/em28xx/em28xx-cards.c
@@ -1193,6 +1193,22 @@ struct em28xx_board em28xx_boards[] = {
 		.i2c_speed    = EM28XX_I2C_CLK_WAIT_ENABLE |
 				EM28XX_I2C_FREQ_400_KHZ,
 	},
+	[EM2884_BOARD_TERRATEC_H6] = {
+		.name         = "Terratec Cinergy H6 rev. 2",
+		.has_dvb      = 1,
+		.ir_codes     = RC_MAP_NEC_TERRATEC_CINERGY_XS,
+#if 0
+		.tuner_type   = TUNER_PHILIPS_TDA8290,
+		.tuner_addr   = 0x41,
+		.dvb_gpio     = terratec_h5_digital, /* FIXME: probably wrong */
+		.tuner_gpio   = terratec_h5_gpio,
+#else
+		.tuner_type   = TUNER_ABSENT,
+#endif
+		.def_i2c_bus  = 1,
+		.i2c_speed    = EM28XX_I2C_CLK_WAIT_ENABLE |
+				EM28XX_I2C_FREQ_400_KHZ,
+	},
 	[EM2884_BOARD_HAUPPAUGE_WINTV_HVR_930C] = {
 		.name         = "Hauppauge WinTV HVR 930C",
 		.has_dvb      = 1,
@@ -2496,6 +2512,8 @@ struct usb_device_id em28xx_id_table[] = {
 			.driver_info = EM2884_BOARD_TERRATEC_H5 },
 	{ USB_DEVICE(0x0ccd, 0x10b6),	/* H5 Rev. 3 */
 			.driver_info = EM2884_BOARD_TERRATEC_H5 },
+	{ USB_DEVICE(0x0ccd, 0x10b2),	/* H6 */
+			.driver_info = EM2884_BOARD_TERRATEC_H6 },
 	{ USB_DEVICE(0x0ccd, 0x0084),
 			.driver_info = EM2860_BOARD_TERRATEC_AV350 },
 	{ USB_DEVICE(0x0ccd, 0x0096),
diff --git a/drivers/media/usb/em28xx/em28xx-dvb.c b/drivers/media/usb/em28xx/em28xx-dvb.c
index 82edd37f0d73..4a7db623fe29 100644
--- a/drivers/media/usb/em28xx/em28xx-dvb.c
+++ b/drivers/media/usb/em28xx/em28xx-dvb.c
@@ -1522,6 +1522,7 @@ static int em28xx_dvb_init(struct em28xx *dev)
 		break;
 	case EM2884_BOARD_ELGATO_EYETV_HYBRID_2008:
 	case EM2884_BOARD_CINERGY_HTC_STICK:
+	case EM2884_BOARD_TERRATEC_H6:
 		terratec_htc_stick_init(dev);
 
 		/* attach demodulator */
diff --git a/drivers/media/usb/em28xx/em28xx-i2c.c b/drivers/media/usb/em28xx/em28xx-i2c.c
index 8c472d5adb50..60b195c157b8 100644
--- a/drivers/media/usb/em28xx/em28xx-i2c.c
+++ b/drivers/media/usb/em28xx/em28xx-i2c.c
@@ -982,8 +982,6 @@ int em28xx_i2c_register(struct em28xx *dev, unsigned bus,
 			dev_err(&dev->intf->dev,
 				"%s: em28xx_i2_eeprom failed! retval [%d]\n",
 				__func__, retval);
-
-			return retval;
 		}
 	}
 
diff --git a/drivers/media/usb/em28xx/em28xx-input.c b/drivers/media/usb/em28xx/em28xx-input.c
index eba75736e654..ca9673917ad5 100644
--- a/drivers/media/usb/em28xx/em28xx-input.c
+++ b/drivers/media/usb/em28xx/em28xx-input.c
@@ -821,7 +821,7 @@ static int em28xx_ir_init(struct em28xx *dev)
 	if (err)
 		goto error;
 
-	dev_info(&dev->intf->dev, "Input extension successfully initalized\n");
+	dev_info(&dev->intf->dev, "Input extension successfully initialized\n");
 
 	return 0;
 
diff --git a/drivers/media/usb/em28xx/em28xx.h b/drivers/media/usb/em28xx/em28xx.h
index e8d97d5ec161..88084f24f033 100644
--- a/drivers/media/usb/em28xx/em28xx.h
+++ b/drivers/media/usb/em28xx/em28xx.h
@@ -148,6 +148,7 @@
 #define EM28178_BOARD_PLEX_PX_BCUD                98
 #define EM28174_BOARD_HAUPPAUGE_WINTV_DUALHD_DVB  99
 #define EM28174_BOARD_HAUPPAUGE_WINTV_DUALHD_01595 100
+#define EM2884_BOARD_TERRATEC_H6		  101
 
 /* Limits minimum and default number of buffers */
 #define EM28XX_MIN_BUF 4
diff --git a/drivers/media/usb/pulse8-cec/pulse8-cec.c b/drivers/media/usb/pulse8-cec/pulse8-cec.c
index c843070f24c1..f9ed9c950247 100644
--- a/drivers/media/usb/pulse8-cec/pulse8-cec.c
+++ b/drivers/media/usb/pulse8-cec/pulse8-cec.c
@@ -51,7 +51,7 @@ MODULE_DESCRIPTION("Pulse Eight HDMI CEC driver");
 MODULE_LICENSE("GPL");
 
 static int debug;
-static int persistent_config = 1;
+static int persistent_config;
 module_param(debug, int, 0644);
 module_param(persistent_config, int, 0644);
 MODULE_PARM_DESC(debug, "debug level (0-1)");
diff --git a/drivers/media/usb/rainshadow-cec/rainshadow-cec.c b/drivers/media/usb/rainshadow-cec/rainshadow-cec.c
index f203699e9c1b..65692576690f 100644
--- a/drivers/media/usb/rainshadow-cec/rainshadow-cec.c
+++ b/drivers/media/usb/rainshadow-cec/rainshadow-cec.c
@@ -116,21 +116,19 @@ static void rain_irq_work_handler(struct work_struct *work)
 
 	while (true) {
 		unsigned long flags;
-		bool exit_loop = false;
 		char data;
 
 		spin_lock_irqsave(&rain->buf_lock, flags);
-		if (rain->buf_len) {
-			data = rain->buf[rain->buf_rd_idx];
-			rain->buf_len--;
-			rain->buf_rd_idx = (rain->buf_rd_idx + 1) & 0xff;
-		} else {
-			exit_loop = true;
+		if (!rain->buf_len) {
+			spin_unlock_irqrestore(&rain->buf_lock, flags);
+			break;
 		}
-		spin_unlock_irqrestore(&rain->buf_lock, flags);
 
-		if (exit_loop)
-			break;
+		data = rain->buf[rain->buf_rd_idx];
+		rain->buf_len--;
+		rain->buf_rd_idx = (rain->buf_rd_idx + 1) & 0xff;
+
+		spin_unlock_irqrestore(&rain->buf_lock, flags);
 
 		if (!rain->cmd_started && data != '?')
 			continue;
diff --git a/drivers/media/usb/stkwebcam/stk-sensor.c b/drivers/media/usb/stkwebcam/stk-sensor.c
index 985af9933c7e..c1d4505f84ea 100644
--- a/drivers/media/usb/stkwebcam/stk-sensor.c
+++ b/drivers/media/usb/stkwebcam/stk-sensor.c
@@ -41,6 +41,8 @@
 
 /* It seems the i2c bus is controlled with these registers */
 
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
 #include "stk-webcam.h"
 
 #define STK_IIC_BASE		(0x0200)
@@ -239,8 +241,8 @@ static int stk_sensor_outb(struct stk_camera *dev, u8 reg, u8 val)
 	} while (tmpval == 0 && i < MAX_RETRIES);
 	if (tmpval != STK_IIC_STAT_TX_OK) {
 		if (tmpval)
-			STK_ERROR("stk_sensor_outb failed, status=0x%02x\n",
-				tmpval);
+			pr_err("stk_sensor_outb failed, status=0x%02x\n",
+			       tmpval);
 		return 1;
 	} else
 		return 0;
@@ -262,8 +264,8 @@ static int stk_sensor_inb(struct stk_camera *dev, u8 reg, u8 *val)
 	} while (tmpval == 0 && i < MAX_RETRIES);
 	if (tmpval != STK_IIC_STAT_RX_OK) {
 		if (tmpval)
-			STK_ERROR("stk_sensor_inb failed, status=0x%02x\n",
-				tmpval);
+			pr_err("stk_sensor_inb failed, status=0x%02x\n",
+			       tmpval);
 		return 1;
 	}
 
@@ -366,29 +368,29 @@ int stk_sensor_init(struct stk_camera *dev)
 	if (stk_camera_write_reg(dev, STK_IIC_ENABLE, STK_IIC_ENABLE_YES)
 		|| stk_camera_write_reg(dev, STK_IIC_ADDR, SENSOR_ADDRESS)
 		|| stk_sensor_outb(dev, REG_COM7, COM7_RESET)) {
-		STK_ERROR("Sensor resetting failed\n");
+		pr_err("Sensor resetting failed\n");
 		return -ENODEV;
 	}
 	msleep(10);
 	/* Read the manufacturer ID: ov = 0x7FA2 */
 	if (stk_sensor_inb(dev, REG_MIDH, &idh)
 	    || stk_sensor_inb(dev, REG_MIDL, &idl)) {
-		STK_ERROR("Strange error reading sensor ID\n");
+		pr_err("Strange error reading sensor ID\n");
 		return -ENODEV;
 	}
 	if (idh != 0x7f || idl != 0xa2) {
-		STK_ERROR("Huh? you don't have a sensor from ovt\n");
+		pr_err("Huh? you don't have a sensor from ovt\n");
 		return -ENODEV;
 	}
 	if (stk_sensor_inb(dev, REG_PID, &idh)
 	    || stk_sensor_inb(dev, REG_VER, &idl)) {
-		STK_ERROR("Could not read sensor model\n");
+		pr_err("Could not read sensor model\n");
 		return -ENODEV;
 	}
 	stk_sensor_write_regvals(dev, ov_initvals);
 	msleep(10);
-	STK_INFO("OmniVision sensor detected, id %02X%02X at address %x\n",
-		 idh, idl, SENSOR_ADDRESS);
+	pr_info("OmniVision sensor detected, id %02X%02X at address %x\n",
+		idh, idl, SENSOR_ADDRESS);
 	return 0;
 }
 
@@ -520,7 +522,8 @@ int stk_sensor_configure(struct stk_camera *dev)
 	case MODE_SXGA: com7 = COM7_FMT_SXGA;
 		dummylines = 0;
 		break;
-	default: STK_ERROR("Unsupported mode %d\n", dev->vsettings.mode);
+	default:
+		pr_err("Unsupported mode %d\n", dev->vsettings.mode);
 		return -EFAULT;
 	}
 	switch (dev->vsettings.palette) {
@@ -544,7 +547,8 @@ int stk_sensor_configure(struct stk_camera *dev)
 		com7 |= COM7_PBAYER;
 		rv = ov_fmt_bayer;
 		break;
-	default: STK_ERROR("Unsupported colorspace\n");
+	default:
+		pr_err("Unsupported colorspace\n");
 		return -EFAULT;
 	}
 	/*FIXME sometimes the sensor go to a bad state
@@ -564,7 +568,7 @@ int stk_sensor_configure(struct stk_camera *dev)
 	switch (dev->vsettings.mode) {
 	case MODE_VGA:
 		if (stk_sensor_set_hw(dev, 302, 1582, 6, 486))
-			STK_ERROR("stk_sensor_set_hw failed (VGA)\n");
+			pr_err("stk_sensor_set_hw failed (VGA)\n");
 		break;
 	case MODE_SXGA:
 	case MODE_CIF:
@@ -572,7 +576,7 @@ int stk_sensor_configure(struct stk_camera *dev)
 	case MODE_QCIF:
 		/*FIXME These settings seem ignored by the sensor
 		if (stk_sensor_set_hw(dev, 220, 1500, 10, 1034))
-			STK_ERROR("stk_sensor_set_hw failed (SXGA)\n");
+			pr_err("stk_sensor_set_hw failed (SXGA)\n");
 		*/
 		break;
 	}
diff --git a/drivers/media/usb/stkwebcam/stk-webcam.c b/drivers/media/usb/stkwebcam/stk-webcam.c
index 6e7fc36b658f..90d4a08cda31 100644
--- a/drivers/media/usb/stkwebcam/stk-webcam.c
+++ b/drivers/media/usb/stkwebcam/stk-webcam.c
@@ -18,6 +18,8 @@
  * GNU General Public License for more details.
  */
 
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
 #include <linux/module.h>
 #include <linux/init.h>
 #include <linux/kernel.h>
@@ -175,15 +177,15 @@ static int stk_start_stream(struct stk_camera *dev)
 	if (!is_present(dev))
 		return -ENODEV;
 	if (!is_memallocd(dev) || !is_initialised(dev)) {
-		STK_ERROR("FIXME: Buffers are not allocated\n");
+		pr_err("FIXME: Buffers are not allocated\n");
 		return -EFAULT;
 	}
 	ret = usb_set_interface(dev->udev, 0, 5);
 
 	if (ret < 0)
-		STK_ERROR("usb_set_interface failed !\n");
+		pr_err("usb_set_interface failed !\n");
 	if (stk_sensor_wakeup(dev))
-		STK_ERROR("error awaking the sensor\n");
+		pr_err("error awaking the sensor\n");
 
 	stk_camera_read_reg(dev, 0x0116, &value_116);
 	stk_camera_read_reg(dev, 0x0117, &value_117);
@@ -224,9 +226,9 @@ static int stk_stop_stream(struct stk_camera *dev)
 		unset_streaming(dev);
 
 		if (usb_set_interface(dev->udev, 0, 0))
-			STK_ERROR("usb_set_interface failed !\n");
+			pr_err("usb_set_interface failed !\n");
 		if (stk_sensor_sleep(dev))
-			STK_ERROR("error suspending the sensor\n");
+			pr_err("error suspending the sensor\n");
 	}
 	return 0;
 }
@@ -313,7 +315,7 @@ static void stk_isoc_handler(struct urb *urb)
 	dev = (struct stk_camera *) urb->context;
 
 	if (dev == NULL) {
-		STK_ERROR("isoc_handler called with NULL device !\n");
+		pr_err("isoc_handler called with NULL device !\n");
 		return;
 	}
 
@@ -326,14 +328,13 @@ static void stk_isoc_handler(struct urb *urb)
 	spin_lock_irqsave(&dev->spinlock, flags);
 
 	if (urb->status != -EINPROGRESS && urb->status != 0) {
-		STK_ERROR("isoc_handler: urb->status == %d\n", urb->status);
+		pr_err("isoc_handler: urb->status == %d\n", urb->status);
 		goto resubmit;
 	}
 
 	if (list_empty(&dev->sio_avail)) {
 		/*FIXME Stop streaming after a while */
-		(void) (printk_ratelimit() &&
-		STK_ERROR("isoc_handler without available buffer!\n"));
+		pr_err_ratelimited("isoc_handler without available buffer!\n");
 		goto resubmit;
 	}
 	fb = list_first_entry(&dev->sio_avail,
@@ -343,8 +344,8 @@ static void stk_isoc_handler(struct urb *urb)
 	for (i = 0; i < urb->number_of_packets; i++) {
 		if (urb->iso_frame_desc[i].status != 0) {
 			if (urb->iso_frame_desc[i].status != -EXDEV)
-				STK_ERROR("Frame %d has error %d\n", i,
-					urb->iso_frame_desc[i].status);
+				pr_err("Frame %d has error %d\n",
+				       i, urb->iso_frame_desc[i].status);
 			continue;
 		}
 		framelen = urb->iso_frame_desc[i].actual_length;
@@ -368,9 +369,8 @@ static void stk_isoc_handler(struct urb *urb)
 			/* This marks a new frame */
 			if (fb->v4lbuf.bytesused != 0
 				&& fb->v4lbuf.bytesused != dev->frame_size) {
-				(void) (printk_ratelimit() &&
-				STK_ERROR("frame %d, bytesused=%d, skipping\n",
-					i, fb->v4lbuf.bytesused));
+				pr_err_ratelimited("frame %d, bytesused=%d, skipping\n",
+						   i, fb->v4lbuf.bytesused);
 				fb->v4lbuf.bytesused = 0;
 				fill = fb->buffer;
 			} else if (fb->v4lbuf.bytesused == dev->frame_size) {
@@ -395,8 +395,7 @@ static void stk_isoc_handler(struct urb *urb)
 
 		/* Our buffer is full !!! */
 		if (framelen + fb->v4lbuf.bytesused > dev->frame_size) {
-			(void) (printk_ratelimit() &&
-			STK_ERROR("Frame buffer overflow, lost sync\n"));
+			pr_err_ratelimited("Frame buffer overflow, lost sync\n");
 			/*FIXME Do something here? */
 			continue;
 		}
@@ -414,8 +413,8 @@ resubmit:
 	urb->dev = dev->udev;
 	ret = usb_submit_urb(urb, GFP_ATOMIC);
 	if (ret != 0) {
-		STK_ERROR("Error (%d) re-submitting urb in stk_isoc_handler.\n",
-			ret);
+		pr_err("Error (%d) re-submitting urb in stk_isoc_handler\n",
+		       ret);
 	}
 }
 
@@ -433,32 +432,31 @@ static int stk_prepare_iso(struct stk_camera *dev)
 	udev = dev->udev;
 
 	if (dev->isobufs)
-		STK_ERROR("isobufs already allocated. Bad\n");
+		pr_err("isobufs already allocated. Bad\n");
 	else
 		dev->isobufs = kcalloc(MAX_ISO_BUFS, sizeof(*dev->isobufs),
 				       GFP_KERNEL);
 	if (dev->isobufs == NULL) {
-		STK_ERROR("Unable to allocate iso buffers\n");
+		pr_err("Unable to allocate iso buffers\n");
 		return -ENOMEM;
 	}
 	for (i = 0; i < MAX_ISO_BUFS; i++) {
 		if (dev->isobufs[i].data == NULL) {
 			kbuf = kzalloc(ISO_BUFFER_SIZE, GFP_KERNEL);
 			if (kbuf == NULL) {
-				STK_ERROR("Failed to allocate iso buffer %d\n",
-					i);
+				pr_err("Failed to allocate iso buffer %d\n", i);
 				goto isobufs_out;
 			}
 			dev->isobufs[i].data = kbuf;
 		} else
-			STK_ERROR("isobuf data already allocated\n");
+			pr_err("isobuf data already allocated\n");
 		if (dev->isobufs[i].urb == NULL) {
 			urb = usb_alloc_urb(ISO_FRAMES_PER_DESC, GFP_KERNEL);
 			if (urb == NULL)
 				goto isobufs_out;
 			dev->isobufs[i].urb = urb;
 		} else {
-			STK_ERROR("Killing URB\n");
+			pr_err("Killing URB\n");
 			usb_kill_urb(dev->isobufs[i].urb);
 			urb = dev->isobufs[i].urb;
 		}
@@ -567,7 +565,7 @@ static int stk_prepare_sio_buffers(struct stk_camera *dev, unsigned n_sbufs)
 {
 	int i;
 	if (dev->sio_bufs != NULL)
-		STK_ERROR("sio_bufs already allocated\n");
+		pr_err("sio_bufs already allocated\n");
 	else {
 		dev->sio_bufs = kzalloc(n_sbufs * sizeof(struct stk_sio_buffer),
 				GFP_KERNEL);
@@ -690,7 +688,7 @@ static ssize_t stk_read(struct file *fp, char __user *buf,
 	spin_lock_irqsave(&dev->spinlock, flags);
 	if (list_empty(&dev->sio_full)) {
 		spin_unlock_irqrestore(&dev->spinlock, flags);
-		STK_ERROR("BUG: No siobufs ready\n");
+		pr_err("BUG: No siobufs ready\n");
 		return 0;
 	}
 	sbuf = list_first_entry(&dev->sio_full, struct stk_sio_buffer, list);
@@ -907,7 +905,7 @@ static int stk_vidioc_g_fmt_vid_cap(struct file *filp,
 			stk_sizes[i].m != dev->vsettings.mode; i++)
 		;
 	if (i == ARRAY_SIZE(stk_sizes)) {
-		STK_ERROR("ERROR: mode invalid\n");
+		pr_err("ERROR: mode invalid\n");
 		return -EINVAL;
 	}
 	pix_format->width = stk_sizes[i].w;
@@ -985,7 +983,7 @@ static int stk_setup_format(struct stk_camera *dev)
 			stk_sizes[i].m != dev->vsettings.mode)
 		i++;
 	if (i == ARRAY_SIZE(stk_sizes)) {
-		STK_ERROR("Something is broken in %s\n", __func__);
+		pr_err("Something is broken in %s\n", __func__);
 		return -EFAULT;
 	}
 	/* This registers controls some timings, not sure of what. */
@@ -1241,7 +1239,7 @@ static void stk_v4l_dev_release(struct video_device *vd)
 	struct stk_camera *dev = vdev_to_camera(vd);
 
 	if (dev->sio_bufs != NULL || dev->isobufs != NULL)
-		STK_ERROR("We are leaking memory\n");
+		pr_err("We are leaking memory\n");
 	usb_put_intf(dev->interface);
 	kfree(dev);
 }
@@ -1264,10 +1262,10 @@ static int stk_register_video_device(struct stk_camera *dev)
 	video_set_drvdata(&dev->vdev, dev);
 	err = video_register_device(&dev->vdev, VFL_TYPE_GRABBER, -1);
 	if (err)
-		STK_ERROR("v4l registration failed\n");
+		pr_err("v4l registration failed\n");
 	else
-		STK_INFO("Syntek USB2.0 Camera is now controlling device %s\n",
-			 video_device_node_name(&dev->vdev));
+		pr_info("Syntek USB2.0 Camera is now controlling device %s\n",
+			video_device_node_name(&dev->vdev));
 	return err;
 }
 
@@ -1288,7 +1286,7 @@ static int stk_camera_probe(struct usb_interface *interface,
 
 	dev = kzalloc(sizeof(struct stk_camera), GFP_KERNEL);
 	if (dev == NULL) {
-		STK_ERROR("Out of memory !\n");
+		pr_err("Out of memory !\n");
 		return -ENOMEM;
 	}
 	err = v4l2_device_register(&interface->dev, &dev->v4l2_dev);
@@ -1352,7 +1350,7 @@ static int stk_camera_probe(struct usb_interface *interface,
 		}
 	}
 	if (!dev->isoc_ep) {
-		STK_ERROR("Could not find isoc-in endpoint");
+		pr_err("Could not find isoc-in endpoint\n");
 		err = -ENODEV;
 		goto error;
 	}
@@ -1387,8 +1385,8 @@ static void stk_camera_disconnect(struct usb_interface *interface)
 
 	wake_up_interruptible(&dev->wait_frame);
 
-	STK_INFO("Syntek USB2.0 Camera release resources device %s\n",
-		 video_device_node_name(&dev->vdev));
+	pr_info("Syntek USB2.0 Camera release resources device %s\n",
+		video_device_node_name(&dev->vdev));
 
 	video_unregister_device(&dev->vdev);
 	v4l2_ctrl_handler_free(&dev->hdl);
diff --git a/drivers/media/usb/stkwebcam/stk-webcam.h b/drivers/media/usb/stkwebcam/stk-webcam.h
index 0284120ce246..5cecbdc97573 100644
--- a/drivers/media/usb/stkwebcam/stk-webcam.h
+++ b/drivers/media/usb/stkwebcam/stk-webcam.h
@@ -31,12 +31,6 @@
 #define ISO_MAX_FRAME_SIZE	3 * 1024
 #define ISO_BUFFER_SIZE		(ISO_FRAMES_PER_DESC * ISO_MAX_FRAME_SIZE)
 
-
-#define PREFIX				"stkwebcam: "
-#define STK_INFO(str, args...)		printk(KERN_INFO PREFIX str, ##args)
-#define STK_ERROR(str, args...)		printk(KERN_ERR PREFIX str, ##args)
-#define STK_WARNING(str, args...)	printk(KERN_WARNING PREFIX str, ##args)
-
 struct stk_iso_buf {
 	void *data;
 	int length;
diff --git a/drivers/media/v4l2-core/tuner-core.c b/drivers/media/v4l2-core/tuner-core.c
index e48b7c032c95..8db45dfc271b 100644
--- a/drivers/media/v4l2-core/tuner-core.c
+++ b/drivers/media/v4l2-core/tuner-core.c
@@ -43,8 +43,6 @@
 
 #define UNSET (-1U)
 
-#define PREFIX (t->i2c->dev.driver->name)
-
 /*
  * Driver modprobe parameters
  */
diff --git a/drivers/mfd/da9062-core.c b/drivers/mfd/da9062-core.c
index fbe0f245ce8e..fe1811523e4a 100644
--- a/drivers/mfd/da9062-core.c
+++ b/drivers/mfd/da9062-core.c
@@ -645,6 +645,9 @@ static const struct regmap_range da9062_aa_readable_ranges[] = {
 		.range_min = DA9062AA_VLDO1_B,
 		.range_max = DA9062AA_VLDO4_B,
 	}, {
+		.range_min = DA9062AA_BBAT_CONT,
+		.range_max = DA9062AA_BBAT_CONT,
+	}, {
 		.range_min = DA9062AA_INTERFACE,
 		.range_max = DA9062AA_CONFIG_E,
 	}, {
@@ -721,6 +724,9 @@ static const struct regmap_range da9062_aa_writeable_ranges[] = {
 		.range_min = DA9062AA_VLDO1_B,
 		.range_max = DA9062AA_VLDO4_B,
 	}, {
+		.range_min = DA9062AA_BBAT_CONT,
+		.range_max = DA9062AA_BBAT_CONT,
+	}, {
 		.range_min = DA9062AA_GP_ID_0,
 		.range_max = DA9062AA_GP_ID_19,
 	},
diff --git a/drivers/misc/mei/pci-me.c b/drivers/misc/mei/pci-me.c
index 8621a198a2ce..bac33311f55a 100644
--- a/drivers/misc/mei/pci-me.c
+++ b/drivers/misc/mei/pci-me.c
@@ -216,6 +216,12 @@ static int mei_me_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
 	pci_set_drvdata(pdev, dev);
 
 	/*
+	 * MEI requires to resume from runtime suspend mode
+	 * in order to perform link reset flow upon system suspend.
+	 */
+	pdev->dev_flags |= PCI_DEV_FLAGS_NEEDS_RESUME;
+
+	/*
 	* For not wake-able HW runtime pm framework
 	* can't be used on pci device level.
 	* Use domain runtime pm callbacks instead.
diff --git a/drivers/misc/mei/pci-txe.c b/drivers/misc/mei/pci-txe.c
index f811cd524468..e38a5f144373 100644
--- a/drivers/misc/mei/pci-txe.c
+++ b/drivers/misc/mei/pci-txe.c
@@ -138,6 +138,12 @@ static int mei_txe_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
 	pci_set_drvdata(pdev, dev);
 
 	/*
+	 * MEI requires to resume from runtime suspend mode
+	 * in order to perform link reset flow upon system suspend.
+	 */
+	pdev->dev_flags |= PCI_DEV_FLAGS_NEEDS_RESUME;
+
+	/*
 	* For not wake-able HW runtime pm framework
 	* can't be used on pci device level.
 	* Use domain runtime pm callbacks instead.
diff --git a/drivers/mmc/core/block.c b/drivers/mmc/core/block.c
index 0cfac2d39107..f1bbfd389367 100644
--- a/drivers/mmc/core/block.c
+++ b/drivers/mmc/core/block.c
@@ -637,6 +637,9 @@ static int mmc_blk_ioctl_multi_cmd(struct block_device *bdev,
 			   sizeof(num_of_cmds)))
 		return -EFAULT;
 
+	if (!num_of_cmds)
+		return 0;
+
 	if (num_of_cmds > MMC_IOC_MAX_CMDS)
 		return -EINVAL;
 
@@ -1182,7 +1185,7 @@ static void mmc_blk_issue_drv_op(struct mmc_queue *mq, struct request *req)
 
 	switch (mq_rq->drv_op) {
 	case MMC_DRV_OP_IOCTL:
-		for (i = 0; i < mq_rq->ioc_count; i++) {
+		for (i = 0, ret = 0; i < mq_rq->ioc_count; i++) {
 			ret = __mmc_blk_ioctl_cmd(card, md, mq_rq->idata[i]);
 			if (ret)
 				break;
@@ -2167,6 +2170,10 @@ static void mmc_blk_remove_req(struct mmc_blk_data *md)
 		 * from being accepted.
 		 */
 		card = md->queue.card;
+		spin_lock_irq(md->queue.queue->queue_lock);
+		queue_flag_set(QUEUE_FLAG_BYPASS, md->queue.queue);
+		spin_unlock_irq(md->queue.queue->queue_lock);
+		blk_set_queue_dying(md->queue.queue);
 		mmc_cleanup_queue(&md->queue);
 		if (md->disk->flags & GENHD_FL_UP) {
 			device_remove_file(disk_to_dev(md->disk), &md->force_ro);
diff --git a/drivers/mmc/core/mmc.c b/drivers/mmc/core/mmc.c
index 4ffea14b7eb6..2bae69e39544 100644
--- a/drivers/mmc/core/mmc.c
+++ b/drivers/mmc/core/mmc.c
@@ -1289,7 +1289,7 @@ out_err:
 static int mmc_select_hs400es(struct mmc_card *card)
 {
 	struct mmc_host *host = card->host;
-	int err = 0;
+	int err = -EINVAL;
 	u8 val;
 
 	if (!(host->caps & MMC_CAP_8_BIT_DATA)) {
diff --git a/drivers/mmc/host/dw_mmc.c b/drivers/mmc/host/dw_mmc.c
index a9dfb26972f2..250dc6ec4c82 100644
--- a/drivers/mmc/host/dw_mmc.c
+++ b/drivers/mmc/host/dw_mmc.c
@@ -2957,7 +2957,7 @@ static struct dw_mci_board *dw_mci_parse_dt(struct dw_mci *host)
 	}
 
 	/* find out number of slots supported */
-	if (device_property_read_u32(dev, "num-slots", &pdata->num_slots))
+	if (!device_property_read_u32(dev, "num-slots", &pdata->num_slots))
 		dev_info(dev, "'num-slots' was deprecated.\n");
 
 	if (device_property_read_u32(dev, "fifo-depth", &pdata->fifo_depth))
diff --git a/drivers/mmc/host/omap_hsmmc.c b/drivers/mmc/host/omap_hsmmc.c
index 7c12f3715676..2ab4788d021f 100644
--- a/drivers/mmc/host/omap_hsmmc.c
+++ b/drivers/mmc/host/omap_hsmmc.c
@@ -356,9 +356,6 @@ static int omap_hsmmc_set_power(struct omap_hsmmc_host *host, int power_on,
 	struct mmc_host *mmc = host->mmc;
 	int ret = 0;
 
-	if (mmc_pdata(host)->set_power)
-		return mmc_pdata(host)->set_power(host->dev, power_on, vdd);
-
 	/*
 	 * If we don't see a Vcc regulator, assume it's a fixed
 	 * voltage always-on regulator.
@@ -366,9 +363,6 @@ static int omap_hsmmc_set_power(struct omap_hsmmc_host *host, int power_on,
 	if (IS_ERR(mmc->supply.vmmc))
 		return 0;
 
-	if (mmc_pdata(host)->before_set_reg)
-		mmc_pdata(host)->before_set_reg(host->dev, power_on, vdd);
-
 	ret = omap_hsmmc_set_pbias(host, false, 0);
 	if (ret)
 		return ret;
@@ -400,9 +394,6 @@ static int omap_hsmmc_set_power(struct omap_hsmmc_host *host, int power_on,
 			return ret;
 	}
 
-	if (mmc_pdata(host)->after_set_reg)
-		mmc_pdata(host)->after_set_reg(host->dev, power_on, vdd);
-
 	return 0;
 
 err_set_voltage:
@@ -469,8 +460,6 @@ static int omap_hsmmc_reg_get(struct omap_hsmmc_host *host)
 	int ret;
 	struct mmc_host *mmc = host->mmc;
 
-	if (mmc_pdata(host)->set_power)
-		return 0;
 
 	ret = mmc_regulator_get_supply(mmc);
 	if (ret == -EPROBE_DEFER)
@@ -2097,7 +2086,7 @@ static int omap_hsmmc_probe(struct platform_device *pdev)
 	mmc->max_seg_size = mmc->max_req_size;
 
 	mmc->caps |= MMC_CAP_MMC_HIGHSPEED | MMC_CAP_SD_HIGHSPEED |
-		     MMC_CAP_WAIT_WHILE_BUSY | MMC_CAP_ERASE;
+		     MMC_CAP_WAIT_WHILE_BUSY | MMC_CAP_ERASE | MMC_CAP_CMD23;
 
 	mmc->caps |= mmc_pdata(host)->caps;
 	if (mmc->caps & MMC_CAP_8_BIT_DATA)
diff --git a/drivers/mmc/host/sdhci-acpi.c b/drivers/mmc/host/sdhci-acpi.c
index cf66a3db71b8..ac678e9fb19a 100644
--- a/drivers/mmc/host/sdhci-acpi.c
+++ b/drivers/mmc/host/sdhci-acpi.c
@@ -45,6 +45,7 @@
 #include <asm/cpu_device_id.h>
 #include <asm/intel-family.h>
 #include <asm/iosf_mbi.h>
+#include <linux/pci.h>
 #endif
 
 #include "sdhci.h"
@@ -134,6 +135,16 @@ static bool sdhci_acpi_byt(void)
 	return x86_match_cpu(byt);
 }
 
+static bool sdhci_acpi_cht(void)
+{
+	static const struct x86_cpu_id cht[] = {
+		{ X86_VENDOR_INTEL, 6, INTEL_FAM6_ATOM_AIRMONT },
+		{}
+	};
+
+	return x86_match_cpu(cht);
+}
+
 #define BYT_IOSF_SCCEP			0x63
 #define BYT_IOSF_OCP_NETCTRL0		0x1078
 #define BYT_IOSF_OCP_TIMEOUT_BASE	GENMASK(10, 8)
@@ -178,6 +189,45 @@ static bool sdhci_acpi_byt_defer(struct device *dev)
 	return false;
 }
 
+static bool sdhci_acpi_cht_pci_wifi(unsigned int vendor, unsigned int device,
+				    unsigned int slot, unsigned int parent_slot)
+{
+	struct pci_dev *dev, *parent, *from = NULL;
+
+	while (1) {
+		dev = pci_get_device(vendor, device, from);
+		pci_dev_put(from);
+		if (!dev)
+			break;
+		parent = pci_upstream_bridge(dev);
+		if (ACPI_COMPANION(&dev->dev) && PCI_SLOT(dev->devfn) == slot &&
+		    parent && PCI_SLOT(parent->devfn) == parent_slot &&
+		    !pci_upstream_bridge(parent)) {
+			pci_dev_put(dev);
+			return true;
+		}
+		from = dev;
+	}
+
+	return false;
+}
+
+/*
+ * GPDwin uses PCI wifi which conflicts with SDIO's use of
+ * acpi_device_fix_up_power() on child device nodes. Identifying GPDwin is
+ * problematic, but since SDIO is only used for wifi, the presence of the PCI
+ * wifi card in the expected slot with an ACPI companion node, is used to
+ * indicate that acpi_device_fix_up_power() should be avoided.
+ */
+static inline bool sdhci_acpi_no_fixup_child_power(const char *hid,
+						   const char *uid)
+{
+	return sdhci_acpi_cht() &&
+	       !strcmp(hid, "80860F14") &&
+	       !strcmp(uid, "2") &&
+	       sdhci_acpi_cht_pci_wifi(0x14e4, 0x43ec, 0, 28);
+}
+
 #else
 
 static inline void sdhci_acpi_byt_setting(struct device *dev)
@@ -189,6 +239,12 @@ static inline bool sdhci_acpi_byt_defer(struct device *dev)
 	return false;
 }
 
+static inline bool sdhci_acpi_no_fixup_child_power(const char *hid,
+						   const char *uid)
+{
+	return false;
+}
+
 #endif
 
 static int bxt_get_cd(struct mmc_host *mmc)
@@ -389,18 +445,20 @@ static int sdhci_acpi_probe(struct platform_device *pdev)
 	if (acpi_bus_get_device(handle, &device))
 		return -ENODEV;
 
+	hid = acpi_device_hid(device);
+	uid = device->pnp.unique_id;
+
 	/* Power on the SDHCI controller and its children */
 	acpi_device_fix_up_power(device);
-	list_for_each_entry(child, &device->children, node)
-		if (child->status.present && child->status.enabled)
-			acpi_device_fix_up_power(child);
+	if (!sdhci_acpi_no_fixup_child_power(hid, uid)) {
+		list_for_each_entry(child, &device->children, node)
+			if (child->status.present && child->status.enabled)
+				acpi_device_fix_up_power(child);
+	}
 
 	if (sdhci_acpi_byt_defer(dev))
 		return -EPROBE_DEFER;
 
-	hid = acpi_device_hid(device);
-	uid = device->pnp.unique_id;
-
 	iomem = platform_get_resource(pdev, IORESOURCE_MEM, 0);
 	if (!iomem)
 		return -ENOMEM;
diff --git a/drivers/mmc/host/sdhci-of-at91.c b/drivers/mmc/host/sdhci-of-at91.c
index 7611fd679f1a..1485530c3592 100644
--- a/drivers/mmc/host/sdhci-of-at91.c
+++ b/drivers/mmc/host/sdhci-of-at91.c
@@ -31,6 +31,7 @@
 
 #define SDMMC_MC1R	0x204
 #define		SDMMC_MC1R_DDR		BIT(3)
+#define		SDMMC_MC1R_FCD		BIT(7)
 #define SDMMC_CACR	0x230
 #define		SDMMC_CACR_CAPWREN	BIT(0)
 #define		SDMMC_CACR_KEY		(0x46 << 8)
@@ -43,6 +44,15 @@ struct sdhci_at91_priv {
 	struct clk *mainck;
 };
 
+static void sdhci_at91_set_force_card_detect(struct sdhci_host *host)
+{
+	u8 mc1r;
+
+	mc1r = readb(host->ioaddr + SDMMC_MC1R);
+	mc1r |= SDMMC_MC1R_FCD;
+	writeb(mc1r, host->ioaddr + SDMMC_MC1R);
+}
+
 static void sdhci_at91_set_clock(struct sdhci_host *host, unsigned int clock)
 {
 	u16 clk;
@@ -110,10 +120,18 @@ void sdhci_at91_set_uhs_signaling(struct sdhci_host *host, unsigned int timing)
 	sdhci_set_uhs_signaling(host, timing);
 }
 
+static void sdhci_at91_reset(struct sdhci_host *host, u8 mask)
+{
+	sdhci_reset(host, mask);
+
+	if (host->mmc->caps & MMC_CAP_NONREMOVABLE)
+		sdhci_at91_set_force_card_detect(host);
+}
+
 static const struct sdhci_ops sdhci_at91_sama5d2_ops = {
 	.set_clock		= sdhci_at91_set_clock,
 	.set_bus_width		= sdhci_set_bus_width,
-	.reset			= sdhci_reset,
+	.reset			= sdhci_at91_reset,
 	.set_uhs_signaling	= sdhci_at91_set_uhs_signaling,
 	.set_power		= sdhci_at91_set_power,
 };
@@ -324,6 +342,21 @@ static int sdhci_at91_probe(struct platform_device *pdev)
 		host->quirks &= ~SDHCI_QUIRK_BROKEN_CARD_DETECTION;
 	}
 
+	/*
+	 * If the device attached to the MMC bus is not removable, it is safer
+	 * to set the Force Card Detect bit. People often don't connect the
+	 * card detect signal and use this pin for another purpose. If the card
+	 * detect pin is not muxed to SDHCI controller, a default value is
+	 * used. This value can be different from a SoC revision to another
+	 * one. Problems come when this default value is not card present. To
+	 * avoid this case, if the device is non removable then the card
+	 * detection procedure using the SDMCC_CD signal is bypassed.
+	 * This bit is reset when a software reset for all command is performed
+	 * so we need to implement our own reset function to set back this bit.
+	 */
+	if (host->mmc->caps & MMC_CAP_NONREMOVABLE)
+		sdhci_at91_set_force_card_detect(host);
+
 	pm_runtime_put_autosuspend(&pdev->dev);
 
 	return 0;
diff --git a/drivers/mmc/host/sunxi-mmc.c b/drivers/mmc/host/sunxi-mmc.c
index d6fa2214aaae..0fb4e4c119e1 100644
--- a/drivers/mmc/host/sunxi-mmc.c
+++ b/drivers/mmc/host/sunxi-mmc.c
@@ -793,8 +793,12 @@ static int sunxi_mmc_clk_set_rate(struct sunxi_mmc_host *host,
 	}
 	mmc_writel(host, REG_CLKCR, rval);
 
-	if (host->cfg->needs_new_timings)
-		mmc_writel(host, REG_SD_NTSR, SDXC_2X_TIMING_MODE);
+	if (host->cfg->needs_new_timings) {
+		/* Don't touch the delay bits */
+		rval = mmc_readl(host, REG_SD_NTSR);
+		rval |= SDXC_2X_TIMING_MODE;
+		mmc_writel(host, REG_SD_NTSR, rval);
+	}
 
 	ret = sunxi_mmc_clk_set_phase(host, ios, rate);
 	if (ret)
diff --git a/drivers/mmc/host/tmio_mmc_core.c b/drivers/mmc/host/tmio_mmc_core.c
index 82b80d42f7ae..88a94355ac90 100644
--- a/drivers/mmc/host/tmio_mmc_core.c
+++ b/drivers/mmc/host/tmio_mmc_core.c
@@ -409,30 +409,29 @@ static void tmio_mmc_transfer_data(struct tmio_mmc_host *host,
 	 * Transfer the data
 	 */
 	if (host->pdata->flags & TMIO_MMC_32BIT_DATA_PORT) {
-		u8 data[4] = { };
+		u32 data = 0;
+		u32 *buf32 = (u32 *)buf;
 
 		if (is_read)
-			sd_ctrl_read32_rep(host, CTL_SD_DATA_PORT, (u32 *)buf,
+			sd_ctrl_read32_rep(host, CTL_SD_DATA_PORT, buf32,
 					   count >> 2);
 		else
-			sd_ctrl_write32_rep(host, CTL_SD_DATA_PORT, (u32 *)buf,
+			sd_ctrl_write32_rep(host, CTL_SD_DATA_PORT, buf32,
 					    count >> 2);
 
 		/* if count was multiple of 4 */
 		if (!(count & 0x3))
 			return;
 
-		buf8 = (u8 *)(buf + (count >> 2));
+		buf32 += count >> 2;
 		count %= 4;
 
 		if (is_read) {
-			sd_ctrl_read32_rep(host, CTL_SD_DATA_PORT,
-					   (u32 *)data, 1);
-			memcpy(buf8, data, count);
+			sd_ctrl_read32_rep(host, CTL_SD_DATA_PORT, &data, 1);
+			memcpy(buf32, &data, count);
 		} else {
-			memcpy(data, buf8, count);
-			sd_ctrl_write32_rep(host, CTL_SD_DATA_PORT,
-					    (u32 *)data, 1);
+			memcpy(&data, buf32, count);
+			sd_ctrl_write32_rep(host, CTL_SD_DATA_PORT, &data, 1);
 		}
 
 		return;
diff --git a/drivers/mmc/host/wbsd.c b/drivers/mmc/host/wbsd.c
index e15a9733fcfd..9668616faf16 100644
--- a/drivers/mmc/host/wbsd.c
+++ b/drivers/mmc/host/wbsd.c
@@ -1386,7 +1386,7 @@ static void wbsd_request_dma(struct wbsd_host *host, int dma)
 	 * order for ISA to be able to DMA to it.
 	 */
 	host->dma_buffer = kmalloc(WBSD_DMA_SIZE,
-		GFP_NOIO | GFP_DMA | __GFP_REPEAT | __GFP_NOWARN);
+		GFP_NOIO | GFP_DMA | __GFP_RETRY_MAYFAIL | __GFP_NOWARN);
 	if (!host->dma_buffer)
 		goto free;
 
diff --git a/drivers/mtd/Kconfig b/drivers/mtd/Kconfig
index e83a279f1217..5a2d71729b9a 100644
--- a/drivers/mtd/Kconfig
+++ b/drivers/mtd/Kconfig
@@ -155,6 +155,10 @@ config MTD_BCM47XX_PARTS
 	  This provides partitions parser for devices based on BCM47xx
 	  boards.
 
+menu "Partition parsers"
+source "drivers/mtd/parsers/Kconfig"
+endmenu
+
 comment "User Modules And Translation Layers"
 
 #
diff --git a/drivers/mtd/Makefile b/drivers/mtd/Makefile
index 99bb9a1f6e16..151d60df303a 100644
--- a/drivers/mtd/Makefile
+++ b/drivers/mtd/Makefile
@@ -13,6 +13,7 @@ obj-$(CONFIG_MTD_AFS_PARTS)	+= afs.o
 obj-$(CONFIG_MTD_AR7_PARTS)	+= ar7part.o
 obj-$(CONFIG_MTD_BCM63XX_PARTS)	+= bcm63xxpart.o
 obj-$(CONFIG_MTD_BCM47XX_PARTS)	+= bcm47xxpart.o
+obj-y				+= parsers/
 
 # 'Users' - code which presents functionality to userspace.
 obj-$(CONFIG_MTD_BLKDEVS)	+= mtd_blkdevs.o
diff --git a/drivers/mtd/bcm47xxpart.c b/drivers/mtd/bcm47xxpart.c
index d10fa6c8f074..fe2581d9d882 100644
--- a/drivers/mtd/bcm47xxpart.c
+++ b/drivers/mtd/bcm47xxpart.c
@@ -43,7 +43,8 @@
 #define ML_MAGIC2			0x26594131
 #define TRX_MAGIC			0x30524448
 #define SHSQ_MAGIC			0x71736873	/* shsq (weird ZTE H218N endianness) */
-#define UBI_EC_MAGIC			0x23494255	/* UBI# */
+
+static const char * const trx_types[] = { "trx", NULL };
 
 struct trx_header {
 	uint32_t magic;
@@ -62,89 +63,6 @@ static void bcm47xxpart_add_part(struct mtd_partition *part, const char *name,
 	part->mask_flags = mask_flags;
 }
 
-static const char *bcm47xxpart_trx_data_part_name(struct mtd_info *master,
-						  size_t offset)
-{
-	uint32_t buf;
-	size_t bytes_read;
-	int err;
-
-	err  = mtd_read(master, offset, sizeof(buf), &bytes_read,
-			(uint8_t *)&buf);
-	if (err && !mtd_is_bitflip(err)) {
-		pr_err("mtd_read error while parsing (offset: 0x%X): %d\n",
-			offset, err);
-		goto out_default;
-	}
-
-	if (buf == UBI_EC_MAGIC)
-		return "ubi";
-
-out_default:
-	return "rootfs";
-}
-
-static int bcm47xxpart_parse_trx(struct mtd_info *master,
-				 struct mtd_partition *trx,
-				 struct mtd_partition *parts,
-				 size_t parts_len)
-{
-	struct trx_header header;
-	size_t bytes_read;
-	int curr_part = 0;
-	int i, err;
-
-	if (parts_len < 3) {
-		pr_warn("No enough space to add TRX partitions!\n");
-		return -ENOMEM;
-	}
-
-	err = mtd_read(master, trx->offset, sizeof(header), &bytes_read,
-		       (uint8_t *)&header);
-	if (err && !mtd_is_bitflip(err)) {
-		pr_err("mtd_read error while reading TRX header: %d\n", err);
-		return err;
-	}
-
-	i = 0;
-
-	/* We have LZMA loader if offset[2] points to sth */
-	if (header.offset[2]) {
-		bcm47xxpart_add_part(&parts[curr_part++], "loader",
-				     trx->offset + header.offset[i], 0);
-		i++;
-	}
-
-	if (header.offset[i]) {
-		bcm47xxpart_add_part(&parts[curr_part++], "linux",
-				     trx->offset + header.offset[i], 0);
-		i++;
-	}
-
-	if (header.offset[i]) {
-		size_t offset = trx->offset + header.offset[i];
-		const char *name = bcm47xxpart_trx_data_part_name(master,
-								  offset);
-
-		bcm47xxpart_add_part(&parts[curr_part++], name, offset, 0);
-		i++;
-	}
-
-	/*
-	 * Assume that every partition ends at the beginning of the one it is
-	 * followed by.
-	 */
-	for (i = 0; i < curr_part; i++) {
-		u64 next_part_offset = (i < curr_part - 1) ?
-					parts[i + 1].offset :
-					trx->offset + trx->size;
-
-		parts[i].size = next_part_offset - parts[i].offset;
-	}
-
-	return curr_part;
-}
-
 /**
  * bcm47xxpart_bootpartition - gets index of TRX partition used by bootloader
  *
@@ -362,17 +280,10 @@ static int bcm47xxpart_parse(struct mtd_info *master,
 	for (i = 0; i < trx_num; i++) {
 		struct mtd_partition *trx = &parts[trx_parts[i]];
 
-		if (i == bcm47xxpart_bootpartition()) {
-			int num_parts;
-
-			num_parts = bcm47xxpart_parse_trx(master, trx,
-							  parts + curr_part,
-							  BCM47XXPART_MAX_PARTS - curr_part);
-			if (num_parts > 0)
-				curr_part += num_parts;
-		} else {
+		if (i == bcm47xxpart_bootpartition())
+			trx->types = trx_types;
+		else
 			trx->name = "failsafe";
-		}
 	}
 
 	*pparts = parts;
diff --git a/drivers/mtd/chips/cfi_cmdset_0020.c b/drivers/mtd/chips/cfi_cmdset_0020.c
index 94d3eb42c4d5..7d342965f392 100644
--- a/drivers/mtd/chips/cfi_cmdset_0020.c
+++ b/drivers/mtd/chips/cfi_cmdset_0020.c
@@ -666,7 +666,7 @@ cfi_staa_writev(struct mtd_info *mtd, const struct kvec *vecs,
 	size_t	 totlen = 0, thislen;
 	int	 ret = 0;
 	size_t	 buflen = 0;
-	static char *buffer;
+	char *buffer;
 
 	if (!ECCBUF_SIZE) {
 		/* We should fall back to a general writev implementation.
diff --git a/drivers/mtd/devices/Kconfig b/drivers/mtd/devices/Kconfig
index 58329d2dacd1..6def5445e03e 100644
--- a/drivers/mtd/devices/Kconfig
+++ b/drivers/mtd/devices/Kconfig
@@ -95,6 +95,16 @@ config MTD_M25P80
 	  if you want to specify device partitioning or to use a device which
 	  doesn't support the JEDEC ID instruction.
 
+config MTD_MCHP23K256
+	tristate "Microchip 23K256 SRAM"
+	depends on SPI_MASTER
+	help
+	  This enables access to Microchip 23K256 SRAM chips, using SPI.
+
+	  Set up your spi devices with the right board-specific
+	  platform data, or a device tree description if you want to
+	  specify device partitioning
+
 config MTD_SPEAR_SMI
 	tristate "SPEAR MTD NOR Support through SMI controller"
 	depends on PLAT_SPEAR
diff --git a/drivers/mtd/devices/Makefile b/drivers/mtd/devices/Makefile
index 7912d3a0ee34..f0f767624cc6 100644
--- a/drivers/mtd/devices/Makefile
+++ b/drivers/mtd/devices/Makefile
@@ -12,6 +12,7 @@ obj-$(CONFIG_MTD_LART)		+= lart.o
 obj-$(CONFIG_MTD_BLOCK2MTD)	+= block2mtd.o
 obj-$(CONFIG_MTD_DATAFLASH)	+= mtd_dataflash.o
 obj-$(CONFIG_MTD_M25P80)	+= m25p80.o
+obj-$(CONFIG_MTD_MCHP23K256)	+= mchp23k256.o
 obj-$(CONFIG_MTD_SPEAR_SMI)	+= spear_smi.o
 obj-$(CONFIG_MTD_SST25L)	+= sst25l.o
 obj-$(CONFIG_MTD_BCM47XXSFLASH)	+= bcm47xxsflash.o
diff --git a/drivers/mtd/devices/m25p80.c b/drivers/mtd/devices/m25p80.c
index c4df3b1bded0..00eea6fd379c 100644
--- a/drivers/mtd/devices/m25p80.c
+++ b/drivers/mtd/devices/m25p80.c
@@ -78,11 +78,17 @@ static ssize_t m25p80_write(struct spi_nor *nor, loff_t to, size_t len,
 {
 	struct m25p *flash = nor->priv;
 	struct spi_device *spi = flash->spi;
-	struct spi_transfer t[2] = {};
+	unsigned int inst_nbits, addr_nbits, data_nbits, data_idx;
+	struct spi_transfer t[3] = {};
 	struct spi_message m;
 	int cmd_sz = m25p_cmdsz(nor);
 	ssize_t ret;
 
+	/* get transfer protocols. */
+	inst_nbits = spi_nor_get_protocol_inst_nbits(nor->write_proto);
+	addr_nbits = spi_nor_get_protocol_addr_nbits(nor->write_proto);
+	data_nbits = spi_nor_get_protocol_data_nbits(nor->write_proto);
+
 	spi_message_init(&m);
 
 	if (nor->program_opcode == SPINOR_OP_AAI_WP && nor->sst_write_second)
@@ -92,12 +98,27 @@ static ssize_t m25p80_write(struct spi_nor *nor, loff_t to, size_t len,
 	m25p_addr2cmd(nor, to, flash->command);
 
 	t[0].tx_buf = flash->command;
+	t[0].tx_nbits = inst_nbits;
 	t[0].len = cmd_sz;
 	spi_message_add_tail(&t[0], &m);
 
-	t[1].tx_buf = buf;
-	t[1].len = len;
-	spi_message_add_tail(&t[1], &m);
+	/* split the op code and address bytes into two transfers if needed. */
+	data_idx = 1;
+	if (addr_nbits != inst_nbits) {
+		t[0].len = 1;
+
+		t[1].tx_buf = &flash->command[1];
+		t[1].tx_nbits = addr_nbits;
+		t[1].len = cmd_sz - 1;
+		spi_message_add_tail(&t[1], &m);
+
+		data_idx = 2;
+	}
+
+	t[data_idx].tx_buf = buf;
+	t[data_idx].tx_nbits = data_nbits;
+	t[data_idx].len = len;
+	spi_message_add_tail(&t[data_idx], &m);
 
 	ret = spi_sync(spi, &m);
 	if (ret)
@@ -109,18 +130,6 @@ static ssize_t m25p80_write(struct spi_nor *nor, loff_t to, size_t len,
 	return ret;
 }
 
-static inline unsigned int m25p80_rx_nbits(struct spi_nor *nor)
-{
-	switch (nor->flash_read) {
-	case SPI_NOR_DUAL:
-		return 2;
-	case SPI_NOR_QUAD:
-		return 4;
-	default:
-		return 0;
-	}
-}
-
 /*
  * Read an address range from the nor chip.  The address range
  * may be any size provided it is within the physical boundaries.
@@ -130,13 +139,20 @@ static ssize_t m25p80_read(struct spi_nor *nor, loff_t from, size_t len,
 {
 	struct m25p *flash = nor->priv;
 	struct spi_device *spi = flash->spi;
-	struct spi_transfer t[2];
+	unsigned int inst_nbits, addr_nbits, data_nbits, data_idx;
+	struct spi_transfer t[3];
 	struct spi_message m;
 	unsigned int dummy = nor->read_dummy;
 	ssize_t ret;
+	int cmd_sz;
+
+	/* get transfer protocols. */
+	inst_nbits = spi_nor_get_protocol_inst_nbits(nor->read_proto);
+	addr_nbits = spi_nor_get_protocol_addr_nbits(nor->read_proto);
+	data_nbits = spi_nor_get_protocol_data_nbits(nor->read_proto);
 
 	/* convert the dummy cycles to the number of bytes */
-	dummy /= 8;
+	dummy = (dummy * addr_nbits) / 8;
 
 	if (spi_flash_read_supported(spi)) {
 		struct spi_flash_read_message msg;
@@ -149,10 +165,9 @@ static ssize_t m25p80_read(struct spi_nor *nor, loff_t from, size_t len,
 		msg.read_opcode = nor->read_opcode;
 		msg.addr_width = nor->addr_width;
 		msg.dummy_bytes = dummy;
-		/* TODO: Support other combinations */
-		msg.opcode_nbits = SPI_NBITS_SINGLE;
-		msg.addr_nbits = SPI_NBITS_SINGLE;
-		msg.data_nbits = m25p80_rx_nbits(nor);
+		msg.opcode_nbits = inst_nbits;
+		msg.addr_nbits = addr_nbits;
+		msg.data_nbits = data_nbits;
 
 		ret = spi_flash_read(spi, &msg);
 		if (ret < 0)
@@ -167,20 +182,45 @@ static ssize_t m25p80_read(struct spi_nor *nor, loff_t from, size_t len,
 	m25p_addr2cmd(nor, from, flash->command);
 
 	t[0].tx_buf = flash->command;
+	t[0].tx_nbits = inst_nbits;
 	t[0].len = m25p_cmdsz(nor) + dummy;
 	spi_message_add_tail(&t[0], &m);
 
-	t[1].rx_buf = buf;
-	t[1].rx_nbits = m25p80_rx_nbits(nor);
-	t[1].len = min3(len, spi_max_transfer_size(spi),
-			spi_max_message_size(spi) - t[0].len);
-	spi_message_add_tail(&t[1], &m);
+	/*
+	 * Set all dummy/mode cycle bits to avoid sending some manufacturer
+	 * specific pattern, which might make the memory enter its Continuous
+	 * Read mode by mistake.
+	 * Based on the different mode cycle bit patterns listed and described
+	 * in the JESD216B specification, the 0xff value works for all memories
+	 * and all manufacturers.
+	 */
+	cmd_sz = t[0].len;
+	memset(flash->command + cmd_sz - dummy, 0xff, dummy);
+
+	/* split the op code and address bytes into two transfers if needed. */
+	data_idx = 1;
+	if (addr_nbits != inst_nbits) {
+		t[0].len = 1;
+
+		t[1].tx_buf = &flash->command[1];
+		t[1].tx_nbits = addr_nbits;
+		t[1].len = cmd_sz - 1;
+		spi_message_add_tail(&t[1], &m);
+
+		data_idx = 2;
+	}
+
+	t[data_idx].rx_buf = buf;
+	t[data_idx].rx_nbits = data_nbits;
+	t[data_idx].len = min3(len, spi_max_transfer_size(spi),
+			       spi_max_message_size(spi) - cmd_sz);
+	spi_message_add_tail(&t[data_idx], &m);
 
 	ret = spi_sync(spi, &m);
 	if (ret)
 		return ret;
 
-	ret = m.actual_length - m25p_cmdsz(nor) - dummy;
+	ret = m.actual_length - cmd_sz;
 	if (ret < 0)
 		return -EIO;
 	return ret;
@@ -196,7 +236,11 @@ static int m25p_probe(struct spi_device *spi)
 	struct flash_platform_data	*data;
 	struct m25p *flash;
 	struct spi_nor *nor;
-	enum read_mode mode = SPI_NOR_NORMAL;
+	struct spi_nor_hwcaps hwcaps = {
+		.mask = SNOR_HWCAPS_READ |
+			SNOR_HWCAPS_READ_FAST |
+			SNOR_HWCAPS_PP,
+	};
 	char *flash_name;
 	int ret;
 
@@ -221,10 +265,19 @@ static int m25p_probe(struct spi_device *spi)
 	spi_set_drvdata(spi, flash);
 	flash->spi = spi;
 
-	if (spi->mode & SPI_RX_QUAD)
-		mode = SPI_NOR_QUAD;
-	else if (spi->mode & SPI_RX_DUAL)
-		mode = SPI_NOR_DUAL;
+	if (spi->mode & SPI_RX_QUAD) {
+		hwcaps.mask |= SNOR_HWCAPS_READ_1_1_4;
+
+		if (spi->mode & SPI_TX_QUAD)
+			hwcaps.mask |= (SNOR_HWCAPS_READ_1_4_4 |
+					SNOR_HWCAPS_PP_1_1_4 |
+					SNOR_HWCAPS_PP_1_4_4);
+	} else if (spi->mode & SPI_RX_DUAL) {
+		hwcaps.mask |= SNOR_HWCAPS_READ_1_1_2;
+
+		if (spi->mode & SPI_TX_DUAL)
+			hwcaps.mask |= SNOR_HWCAPS_READ_1_2_2;
+	}
 
 	if (data && data->name)
 		nor->mtd.name = data->name;
@@ -241,7 +294,7 @@ static int m25p_probe(struct spi_device *spi)
 	else
 		flash_name = spi->modalias;
 
-	ret = spi_nor_scan(nor, flash_name, mode);
+	ret = spi_nor_scan(nor, flash_name, &hwcaps);
 	if (ret)
 		return ret;
 
diff --git a/drivers/mtd/devices/mchp23k256.c b/drivers/mtd/devices/mchp23k256.c
new file mode 100644
index 000000000000..8956b7dcc984
--- /dev/null
+++ b/drivers/mtd/devices/mchp23k256.c
@@ -0,0 +1,236 @@
+/*
+ * mchp23k256.c
+ *
+ * Driver for Microchip 23k256 SPI RAM chips
+ *
+ * Copyright © 2016 Andrew Lunn <andrew@lunn.ch>
+ *
+ * This code is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ */
+#include <linux/device.h>
+#include <linux/module.h>
+#include <linux/mtd/mtd.h>
+#include <linux/mtd/partitions.h>
+#include <linux/mutex.h>
+#include <linux/sched.h>
+#include <linux/sizes.h>
+#include <linux/spi/flash.h>
+#include <linux/spi/spi.h>
+#include <linux/of_device.h>
+
+#define MAX_CMD_SIZE		4
+
+struct mchp23_caps {
+	u8 addr_width;
+	unsigned int size;
+};
+
+struct mchp23k256_flash {
+	struct spi_device	*spi;
+	struct mutex		lock;
+	struct mtd_info		mtd;
+	const struct mchp23_caps	*caps;
+};
+
+#define MCHP23K256_CMD_WRITE_STATUS	0x01
+#define MCHP23K256_CMD_WRITE		0x02
+#define MCHP23K256_CMD_READ		0x03
+#define MCHP23K256_MODE_SEQ		BIT(6)
+
+#define to_mchp23k256_flash(x) container_of(x, struct mchp23k256_flash, mtd)
+
+static void mchp23k256_addr2cmd(struct mchp23k256_flash *flash,
+				unsigned int addr, u8 *cmd)
+{
+	int i;
+
+	/*
+	 * Address is sent in big endian (MSB first) and we skip
+	 * the first entry of the cmd array which contains the cmd
+	 * opcode.
+	 */
+	for (i = flash->caps->addr_width; i > 0; i--, addr >>= 8)
+		cmd[i] = addr;
+}
+
+static int mchp23k256_cmdsz(struct mchp23k256_flash *flash)
+{
+	return 1 + flash->caps->addr_width;
+}
+
+static int mchp23k256_write(struct mtd_info *mtd, loff_t to, size_t len,
+			    size_t *retlen, const unsigned char *buf)
+{
+	struct mchp23k256_flash *flash = to_mchp23k256_flash(mtd);
+	struct spi_transfer transfer[2] = {};
+	struct spi_message message;
+	unsigned char command[MAX_CMD_SIZE];
+
+	spi_message_init(&message);
+
+	command[0] = MCHP23K256_CMD_WRITE;
+	mchp23k256_addr2cmd(flash, to, command);
+
+	transfer[0].tx_buf = command;
+	transfer[0].len = mchp23k256_cmdsz(flash);
+	spi_message_add_tail(&transfer[0], &message);
+
+	transfer[1].tx_buf = buf;
+	transfer[1].len = len;
+	spi_message_add_tail(&transfer[1], &message);
+
+	mutex_lock(&flash->lock);
+
+	spi_sync(flash->spi, &message);
+
+	if (retlen && message.actual_length > sizeof(command))
+		*retlen += message.actual_length - sizeof(command);
+
+	mutex_unlock(&flash->lock);
+	return 0;
+}
+
+static int mchp23k256_read(struct mtd_info *mtd, loff_t from, size_t len,
+			   size_t *retlen, unsigned char *buf)
+{
+	struct mchp23k256_flash *flash = to_mchp23k256_flash(mtd);
+	struct spi_transfer transfer[2] = {};
+	struct spi_message message;
+	unsigned char command[MAX_CMD_SIZE];
+
+	spi_message_init(&message);
+
+	memset(&transfer, 0, sizeof(transfer));
+	command[0] = MCHP23K256_CMD_READ;
+	mchp23k256_addr2cmd(flash, from, command);
+
+	transfer[0].tx_buf = command;
+	transfer[0].len = mchp23k256_cmdsz(flash);
+	spi_message_add_tail(&transfer[0], &message);
+
+	transfer[1].rx_buf = buf;
+	transfer[1].len = len;
+	spi_message_add_tail(&transfer[1], &message);
+
+	mutex_lock(&flash->lock);
+
+	spi_sync(flash->spi, &message);
+
+	if (retlen && message.actual_length > sizeof(command))
+		*retlen += message.actual_length - sizeof(command);
+
+	mutex_unlock(&flash->lock);
+	return 0;
+}
+
+/*
+ * Set the device into sequential mode. This allows read/writes to the
+ * entire SRAM in a single operation
+ */
+static int mchp23k256_set_mode(struct spi_device *spi)
+{
+	struct spi_transfer transfer = {};
+	struct spi_message message;
+	unsigned char command[2];
+
+	spi_message_init(&message);
+
+	command[0] = MCHP23K256_CMD_WRITE_STATUS;
+	command[1] = MCHP23K256_MODE_SEQ;
+
+	transfer.tx_buf = command;
+	transfer.len = sizeof(command);
+	spi_message_add_tail(&transfer, &message);
+
+	return spi_sync(spi, &message);
+}
+
+static const struct mchp23_caps mchp23k256_caps = {
+	.size = SZ_32K,
+	.addr_width = 2,
+};
+
+static const struct mchp23_caps mchp23lcv1024_caps = {
+	.size = SZ_128K,
+	.addr_width = 3,
+};
+
+static int mchp23k256_probe(struct spi_device *spi)
+{
+	struct mchp23k256_flash *flash;
+	struct flash_platform_data *data;
+	int err;
+
+	flash = devm_kzalloc(&spi->dev, sizeof(*flash), GFP_KERNEL);
+	if (!flash)
+		return -ENOMEM;
+
+	flash->spi = spi;
+	mutex_init(&flash->lock);
+	spi_set_drvdata(spi, flash);
+
+	err = mchp23k256_set_mode(spi);
+	if (err)
+		return err;
+
+	data = dev_get_platdata(&spi->dev);
+
+	flash->caps = of_device_get_match_data(&spi->dev);
+	if (!flash->caps)
+		flash->caps = &mchp23k256_caps;
+
+	mtd_set_of_node(&flash->mtd, spi->dev.of_node);
+	flash->mtd.dev.parent	= &spi->dev;
+	flash->mtd.type		= MTD_RAM;
+	flash->mtd.flags	= MTD_CAP_RAM;
+	flash->mtd.writesize	= 1;
+	flash->mtd.size		= flash->caps->size;
+	flash->mtd._read	= mchp23k256_read;
+	flash->mtd._write	= mchp23k256_write;
+
+	err = mtd_device_register(&flash->mtd, data ? data->parts : NULL,
+				  data ? data->nr_parts : 0);
+	if (err)
+		return err;
+
+	return 0;
+}
+
+static int mchp23k256_remove(struct spi_device *spi)
+{
+	struct mchp23k256_flash *flash = spi_get_drvdata(spi);
+
+	return mtd_device_unregister(&flash->mtd);
+}
+
+static const struct of_device_id mchp23k256_of_table[] = {
+	{
+		.compatible = "microchip,mchp23k256",
+		.data = &mchp23k256_caps,
+	},
+	{
+		.compatible = "microchip,mchp23lcv1024",
+		.data = &mchp23lcv1024_caps,
+	},
+	{}
+};
+MODULE_DEVICE_TABLE(of, mchp23k256_of_table);
+
+static struct spi_driver mchp23k256_driver = {
+	.driver = {
+		.name	= "mchp23k256",
+		.of_match_table = of_match_ptr(mchp23k256_of_table),
+	},
+	.probe		= mchp23k256_probe,
+	.remove		= mchp23k256_remove,
+};
+
+module_spi_driver(mchp23k256_driver);
+
+MODULE_DESCRIPTION("MTD SPI driver for MCHP23K256 RAM chips");
+MODULE_AUTHOR("Andrew Lunn <andre@lunn.ch>");
+MODULE_LICENSE("GPL v2");
+MODULE_ALIAS("spi:mchp23k256");
diff --git a/drivers/mtd/devices/mtd_dataflash.c b/drivers/mtd/devices/mtd_dataflash.c
index f9e9bd1cfaa0..5dc8bd042cc5 100644
--- a/drivers/mtd/devices/mtd_dataflash.c
+++ b/drivers/mtd/devices/mtd_dataflash.c
@@ -82,9 +82,13 @@
 #define OP_WRITE_SECURITY_REVC	0x9A
 #define OP_WRITE_SECURITY	0x9B	/* revision D */
 
+#define CFI_MFR_ATMEL		0x1F
+
+#define DATAFLASH_SHIFT_EXTID	24
+#define DATAFLASH_SHIFT_ID	40
 
 struct dataflash {
-	uint8_t			command[4];
+	u8			command[4];
 	char			name[24];
 
 	unsigned short		page_offset;	/* offset in flash address */
@@ -129,8 +133,7 @@ static int dataflash_waitready(struct spi_device *spi)
 	for (;;) {
 		status = dataflash_status(spi);
 		if (status < 0) {
-			pr_debug("%s: status %d?\n",
-					dev_name(&spi->dev), status);
+			dev_dbg(&spi->dev, "status %d?\n", status);
 			status = 0;
 		}
 
@@ -153,12 +156,11 @@ static int dataflash_erase(struct mtd_info *mtd, struct erase_info *instr)
 	struct spi_transfer	x = { };
 	struct spi_message	msg;
 	unsigned		blocksize = priv->page_size << 3;
-	uint8_t			*command;
-	uint32_t		rem;
+	u8			*command;
+	u32			rem;
 
-	pr_debug("%s: erase addr=0x%llx len 0x%llx\n",
-	      dev_name(&spi->dev), (long long)instr->addr,
-	      (long long)instr->len);
+	dev_dbg(&spi->dev, "erase addr=0x%llx len 0x%llx\n",
+		(long long)instr->addr, (long long)instr->len);
 
 	div_u64_rem(instr->len, priv->page_size, &rem);
 	if (rem)
@@ -187,11 +189,11 @@ static int dataflash_erase(struct mtd_info *mtd, struct erase_info *instr)
 		pageaddr = pageaddr << priv->page_offset;
 
 		command[0] = do_block ? OP_ERASE_BLOCK : OP_ERASE_PAGE;
-		command[1] = (uint8_t)(pageaddr >> 16);
-		command[2] = (uint8_t)(pageaddr >> 8);
+		command[1] = (u8)(pageaddr >> 16);
+		command[2] = (u8)(pageaddr >> 8);
 		command[3] = 0;
 
-		pr_debug("ERASE %s: (%x) %x %x %x [%i]\n",
+		dev_dbg(&spi->dev, "ERASE %s: (%x) %x %x %x [%i]\n",
 			do_block ? "block" : "page",
 			command[0], command[1], command[2], command[3],
 			pageaddr);
@@ -200,8 +202,8 @@ static int dataflash_erase(struct mtd_info *mtd, struct erase_info *instr)
 		(void) dataflash_waitready(spi);
 
 		if (status < 0) {
-			printk(KERN_ERR "%s: erase %x, err %d\n",
-				dev_name(&spi->dev), pageaddr, status);
+			dev_err(&spi->dev, "erase %x, err %d\n",
+				pageaddr, status);
 			/* REVISIT:  can retry instr->retries times; or
 			 * giveup and instr->fail_addr = instr->addr;
 			 */
@@ -239,11 +241,11 @@ static int dataflash_read(struct mtd_info *mtd, loff_t from, size_t len,
 	struct spi_transfer	x[2] = { };
 	struct spi_message	msg;
 	unsigned int		addr;
-	uint8_t			*command;
+	u8			*command;
 	int			status;
 
-	pr_debug("%s: read 0x%x..0x%x\n", dev_name(&priv->spi->dev),
-			(unsigned)from, (unsigned)(from + len));
+	dev_dbg(&priv->spi->dev, "read 0x%x..0x%x\n",
+		  (unsigned int)from, (unsigned int)(from + len));
 
 	/* Calculate flash page/byte address */
 	addr = (((unsigned)from / priv->page_size) << priv->page_offset)
@@ -251,7 +253,7 @@ static int dataflash_read(struct mtd_info *mtd, loff_t from, size_t len,
 
 	command = priv->command;
 
-	pr_debug("READ: (%x) %x %x %x\n",
+	dev_dbg(&priv->spi->dev, "READ: (%x) %x %x %x\n",
 		command[0], command[1], command[2], command[3]);
 
 	spi_message_init(&msg);
@@ -271,9 +273,9 @@ static int dataflash_read(struct mtd_info *mtd, loff_t from, size_t len,
 	 * fewer "don't care" bytes.  Both buffers stay unchanged.
 	 */
 	command[0] = OP_READ_CONTINUOUS;
-	command[1] = (uint8_t)(addr >> 16);
-	command[2] = (uint8_t)(addr >> 8);
-	command[3] = (uint8_t)(addr >> 0);
+	command[1] = (u8)(addr >> 16);
+	command[2] = (u8)(addr >> 8);
+	command[3] = (u8)(addr >> 0);
 	/* plus 4 "don't care" bytes */
 
 	status = spi_sync(priv->spi, &msg);
@@ -283,8 +285,7 @@ static int dataflash_read(struct mtd_info *mtd, loff_t from, size_t len,
 		*retlen = msg.actual_length - 8;
 		status = 0;
 	} else
-		pr_debug("%s: read %x..%x --> %d\n",
-			dev_name(&priv->spi->dev),
+		dev_dbg(&priv->spi->dev, "read %x..%x --> %d\n",
 			(unsigned)from, (unsigned)(from + len),
 			status);
 	return status;
@@ -308,10 +309,10 @@ static int dataflash_write(struct mtd_info *mtd, loff_t to, size_t len,
 	size_t			remaining = len;
 	u_char			*writebuf = (u_char *) buf;
 	int			status = -EINVAL;
-	uint8_t			*command;
+	u8			*command;
 
-	pr_debug("%s: write 0x%x..0x%x\n",
-		dev_name(&spi->dev), (unsigned)to, (unsigned)(to + len));
+	dev_dbg(&spi->dev, "write 0x%x..0x%x\n",
+		(unsigned int)to, (unsigned int)(to + len));
 
 	spi_message_init(&msg);
 
@@ -328,7 +329,7 @@ static int dataflash_write(struct mtd_info *mtd, loff_t to, size_t len,
 
 	mutex_lock(&priv->lock);
 	while (remaining > 0) {
-		pr_debug("write @ %i:%i len=%i\n",
+		dev_dbg(&spi->dev, "write @ %i:%i len=%i\n",
 			pageaddr, offset, writelen);
 
 		/* REVISIT:
@@ -356,13 +357,13 @@ static int dataflash_write(struct mtd_info *mtd, loff_t to, size_t len,
 			command[2] = (addr & 0x0000FF00) >> 8;
 			command[3] = 0;
 
-			pr_debug("TRANSFER: (%x) %x %x %x\n",
+			dev_dbg(&spi->dev, "TRANSFER: (%x) %x %x %x\n",
 				command[0], command[1], command[2], command[3]);
 
 			status = spi_sync(spi, &msg);
 			if (status < 0)
-				pr_debug("%s: xfer %u -> %d\n",
-					dev_name(&spi->dev), addr, status);
+				dev_dbg(&spi->dev, "xfer %u -> %d\n",
+					addr, status);
 
 			(void) dataflash_waitready(priv->spi);
 		}
@@ -374,7 +375,7 @@ static int dataflash_write(struct mtd_info *mtd, loff_t to, size_t len,
 		command[2] = (addr & 0x0000FF00) >> 8;
 		command[3] = (addr & 0x000000FF);
 
-		pr_debug("PROGRAM: (%x) %x %x %x\n",
+		dev_dbg(&spi->dev, "PROGRAM: (%x) %x %x %x\n",
 			command[0], command[1], command[2], command[3]);
 
 		x[1].tx_buf = writebuf;
@@ -383,8 +384,8 @@ static int dataflash_write(struct mtd_info *mtd, loff_t to, size_t len,
 		status = spi_sync(spi, &msg);
 		spi_transfer_del(x + 1);
 		if (status < 0)
-			pr_debug("%s: pgm %u/%u -> %d\n",
-				dev_name(&spi->dev), addr, writelen, status);
+			dev_dbg(&spi->dev, "pgm %u/%u -> %d\n",
+				addr, writelen, status);
 
 		(void) dataflash_waitready(priv->spi);
 
@@ -398,20 +399,20 @@ static int dataflash_write(struct mtd_info *mtd, loff_t to, size_t len,
 		command[2] = (addr & 0x0000FF00) >> 8;
 		command[3] = 0;
 
-		pr_debug("COMPARE: (%x) %x %x %x\n",
+		dev_dbg(&spi->dev, "COMPARE: (%x) %x %x %x\n",
 			command[0], command[1], command[2], command[3]);
 
 		status = spi_sync(spi, &msg);
 		if (status < 0)
-			pr_debug("%s: compare %u -> %d\n",
-				dev_name(&spi->dev), addr, status);
+			dev_dbg(&spi->dev, "compare %u -> %d\n",
+				addr, status);
 
 		status = dataflash_waitready(priv->spi);
 
 		/* Check result of the compare operation */
 		if (status & (1 << 6)) {
-			printk(KERN_ERR "%s: compare page %u, err %d\n",
-				dev_name(&spi->dev), pageaddr, status);
+			dev_err(&spi->dev, "compare page %u, err %d\n",
+				pageaddr, status);
 			remaining = 0;
 			status = -EIO;
 			break;
@@ -455,11 +456,11 @@ static int dataflash_get_otp_info(struct mtd_info *mtd, size_t len,
 }
 
 static ssize_t otp_read(struct spi_device *spi, unsigned base,
-		uint8_t *buf, loff_t off, size_t len)
+		u8 *buf, loff_t off, size_t len)
 {
 	struct spi_message	m;
 	size_t			l;
-	uint8_t			*scratch;
+	u8			*scratch;
 	struct spi_transfer	t;
 	int			status;
 
@@ -538,7 +539,7 @@ static int dataflash_write_user_otp(struct mtd_info *mtd,
 {
 	struct spi_message	m;
 	const size_t		l = 4 + 64;
-	uint8_t			*scratch;
+	u8			*scratch;
 	struct spi_transfer	t;
 	struct dataflash	*priv = mtd->priv;
 	int			status;
@@ -689,14 +690,15 @@ struct flash_info {
 	/* JEDEC id has a high byte of zero plus three data bytes:
 	 * the manufacturer id, then a two byte device id.
 	 */
-	uint32_t	jedec_id;
+	u64		jedec_id;
 
 	/* The size listed here is what works with OP_ERASE_PAGE. */
 	unsigned	nr_pages;
-	uint16_t	pagesize;
-	uint16_t	pageoffset;
+	u16		pagesize;
+	u16		pageoffset;
 
-	uint16_t	flags;
+	u16		flags;
+#define SUP_EXTID	0x0004		/* supports extended ID data */
 #define SUP_POW2PS	0x0002		/* supports 2^N byte pages */
 #define IS_POW2PS	0x0001		/* uses 2^N byte pages */
 };
@@ -734,54 +736,32 @@ static struct flash_info dataflash_data[] = {
 
 	{ "AT45DB642x",  0x1f2800, 8192, 1056, 11, SUP_POW2PS},
 	{ "at45db642d",  0x1f2800, 8192, 1024, 10, SUP_POW2PS | IS_POW2PS},
+
+	{ "AT45DB641E",  0x1f28000100, 32768, 264, 9, SUP_EXTID | SUP_POW2PS},
+	{ "at45db641e",  0x1f28000100, 32768, 256, 8, SUP_EXTID | SUP_POW2PS | IS_POW2PS},
 };
 
-static struct flash_info *jedec_probe(struct spi_device *spi)
+static struct flash_info *jedec_lookup(struct spi_device *spi,
+				       u64 jedec, bool use_extid)
 {
-	int			tmp;
-	uint8_t			code = OP_READ_ID;
-	uint8_t			id[3];
-	uint32_t		jedec;
-	struct flash_info	*info;
+	struct flash_info *info;
 	int status;
 
-	/* JEDEC also defines an optional "extended device information"
-	 * string for after vendor-specific data, after the three bytes
-	 * we use here.  Supporting some chips might require using it.
-	 *
-	 * If the vendor ID isn't Atmel's (0x1f), assume this call failed.
-	 * That's not an error; only rev C and newer chips handle it, and
-	 * only Atmel sells these chips.
-	 */
-	tmp = spi_write_then_read(spi, &code, 1, id, 3);
-	if (tmp < 0) {
-		pr_debug("%s: error %d reading JEDEC ID\n",
-			dev_name(&spi->dev), tmp);
-		return ERR_PTR(tmp);
-	}
-	if (id[0] != 0x1f)
-		return NULL;
-
-	jedec = id[0];
-	jedec = jedec << 8;
-	jedec |= id[1];
-	jedec = jedec << 8;
-	jedec |= id[2];
+	for (info = dataflash_data;
+	     info < dataflash_data + ARRAY_SIZE(dataflash_data);
+	     info++) {
+		if (use_extid && !(info->flags & SUP_EXTID))
+			continue;
 
-	for (tmp = 0, info = dataflash_data;
-			tmp < ARRAY_SIZE(dataflash_data);
-			tmp++, info++) {
 		if (info->jedec_id == jedec) {
-			pr_debug("%s: OTP, sector protect%s\n",
-				dev_name(&spi->dev),
-				(info->flags & SUP_POW2PS)
-					? ", binary pagesize" : ""
-				);
+			dev_dbg(&spi->dev, "OTP, sector protect%s\n",
+				(info->flags & SUP_POW2PS) ?
+				", binary pagesize" : "");
 			if (info->flags & SUP_POW2PS) {
 				status = dataflash_status(spi);
 				if (status < 0) {
-					pr_debug("%s: status error %d\n",
-						dev_name(&spi->dev), status);
+					dev_dbg(&spi->dev, "status error %d\n",
+						status);
 					return ERR_PTR(status);
 				}
 				if (status & 0x1) {
@@ -796,12 +776,58 @@ static struct flash_info *jedec_probe(struct spi_device *spi)
 		}
 	}
 
+	return ERR_PTR(-ENODEV);
+}
+
+static struct flash_info *jedec_probe(struct spi_device *spi)
+{
+	int ret;
+	u8 code = OP_READ_ID;
+	u64 jedec;
+	u8 id[sizeof(jedec)] = {0};
+	const unsigned int id_size = 5;
+	struct flash_info *info;
+
+	/*
+	 * JEDEC also defines an optional "extended device information"
+	 * string for after vendor-specific data, after the three bytes
+	 * we use here.  Supporting some chips might require using it.
+	 *
+	 * If the vendor ID isn't Atmel's (0x1f), assume this call failed.
+	 * That's not an error; only rev C and newer chips handle it, and
+	 * only Atmel sells these chips.
+	 */
+	ret = spi_write_then_read(spi, &code, 1, id, id_size);
+	if (ret < 0) {
+		dev_dbg(&spi->dev, "error %d reading JEDEC ID\n", ret);
+		return ERR_PTR(ret);
+	}
+
+	if (id[0] != CFI_MFR_ATMEL)
+		return NULL;
+
+	jedec = be64_to_cpup((__be64 *)id);
+
+	/*
+	 * First, try to match device using extended device
+	 * information
+	 */
+	info = jedec_lookup(spi, jedec >> DATAFLASH_SHIFT_EXTID, true);
+	if (!IS_ERR(info))
+		return info;
+	/*
+	 * If that fails, make another pass using regular ID
+	 * information
+	 */
+	info = jedec_lookup(spi, jedec >> DATAFLASH_SHIFT_ID, false);
+	if (!IS_ERR(info))
+		return info;
 	/*
 	 * Treat other chips as errors ... we won't know the right page
 	 * size (it might be binary) even when we can tell which density
 	 * class is involved (legacy chip id scheme).
 	 */
-	dev_warn(&spi->dev, "JEDEC id %06x not handled\n", jedec);
+	dev_warn(&spi->dev, "JEDEC id %016llx not handled\n", jedec);
 	return ERR_PTR(-ENODEV);
 }
 
@@ -845,8 +871,7 @@ static int dataflash_probe(struct spi_device *spi)
 	 */
 	status = dataflash_status(spi);
 	if (status <= 0 || status == 0xff) {
-		pr_debug("%s: status error %d\n",
-				dev_name(&spi->dev), status);
+		dev_dbg(&spi->dev, "status error %d\n", status);
 		if (status == 0 || status == 0xff)
 			status = -ENODEV;
 		return status;
@@ -887,8 +912,7 @@ static int dataflash_probe(struct spi_device *spi)
 	}
 
 	if (status < 0)
-		pr_debug("%s: add_dataflash --> %d\n", dev_name(&spi->dev),
-				status);
+		dev_dbg(&spi->dev, "add_dataflash --> %d\n", status);
 
 	return status;
 }
@@ -898,7 +922,7 @@ static int dataflash_remove(struct spi_device *spi)
 	struct dataflash	*flash = spi_get_drvdata(spi);
 	int			status;
 
-	pr_debug("%s: remove\n", dev_name(&spi->dev));
+	dev_dbg(&spi->dev, "remove\n");
 
 	status = mtd_device_unregister(&flash->mtd);
 	if (status == 0)
diff --git a/drivers/mtd/devices/serial_flash_cmds.h b/drivers/mtd/devices/serial_flash_cmds.h
index 8b81e15105dd..eba125c9f23f 100644
--- a/drivers/mtd/devices/serial_flash_cmds.h
+++ b/drivers/mtd/devices/serial_flash_cmds.h
@@ -13,7 +13,6 @@
 #define _MTD_SERIAL_FLASH_CMDS_H
 
 /* Generic Flash Commands/OPCODEs */
-#define SPINOR_OP_RDSR2		0x35
 #define SPINOR_OP_WRVCR		0x81
 #define SPINOR_OP_RDVCR		0x85
 
diff --git a/drivers/mtd/devices/st_spi_fsm.c b/drivers/mtd/devices/st_spi_fsm.c
index 804313a33f2b..21afd94cd904 100644
--- a/drivers/mtd/devices/st_spi_fsm.c
+++ b/drivers/mtd/devices/st_spi_fsm.c
@@ -1445,7 +1445,7 @@ static int stfsm_s25fl_config(struct stfsm *fsm)
 	}
 
 	/* Check status of 'QE' bit, update if required. */
-	stfsm_read_status(fsm, SPINOR_OP_RDSR2, &cr1, 1);
+	stfsm_read_status(fsm, SPINOR_OP_RDCR, &cr1, 1);
 	data_pads = ((fsm->stfsm_seq_read.seq_cfg >> 16) & 0x3) + 1;
 	if (data_pads == 4) {
 		if (!(cr1 & STFSM_S25FL_CONFIG_QE)) {
@@ -1490,7 +1490,7 @@ static int stfsm_w25q_config(struct stfsm *fsm)
 		return ret;
 
 	/* Check status of 'QE' bit, update if required. */
-	stfsm_read_status(fsm, SPINOR_OP_RDSR2, &sr2, 1);
+	stfsm_read_status(fsm, SPINOR_OP_RDCR, &sr2, 1);
 	data_pads = ((fsm->stfsm_seq_read.seq_cfg >> 16) & 0x3) + 1;
 	if (data_pads == 4) {
 		if (!(sr2 & W25Q_STATUS_QE)) {
diff --git a/drivers/mtd/maps/physmap_of_gemini.c b/drivers/mtd/maps/physmap_of_gemini.c
index 9d371cd728ea..05b286b5289f 100644
--- a/drivers/mtd/maps/physmap_of_gemini.c
+++ b/drivers/mtd/maps/physmap_of_gemini.c
@@ -59,7 +59,7 @@ int of_flash_probe_gemini(struct platform_device *pdev,
 			  struct device_node *np,
 			  struct map_info *map)
 {
-	static struct regmap *rmap;
+	struct regmap *rmap;
 	struct device *dev = &pdev->dev;
 	u32 val;
 	int ret;
diff --git a/drivers/mtd/mtd_blkdevs.c b/drivers/mtd/mtd_blkdevs.c
index f336a9b85576..9ec8f033ac5f 100644
--- a/drivers/mtd/mtd_blkdevs.c
+++ b/drivers/mtd/mtd_blkdevs.c
@@ -113,6 +113,7 @@ static blk_status_t do_blktrans_request(struct mtd_blktrans_ops *tr,
 		for (; nsect > 0; nsect--, block++, buf += tr->blksize)
 			if (tr->writesect(dev, block, buf))
 				return BLK_STS_IOERR;
+		return BLK_STS_OK;
 	default:
 		return BLK_STS_IOERR;
 	}
diff --git a/drivers/mtd/mtdcore.c b/drivers/mtd/mtdcore.c
index 1517da3ddd7d..956382cea256 100644
--- a/drivers/mtd/mtdcore.c
+++ b/drivers/mtd/mtdcore.c
@@ -991,7 +991,7 @@ EXPORT_SYMBOL_GPL(mtd_point);
 /* We probably shouldn't allow XIP if the unpoint isn't a NULL */
 int mtd_unpoint(struct mtd_info *mtd, loff_t from, size_t len)
 {
-	if (!mtd->_point)
+	if (!mtd->_unpoint)
 		return -EOPNOTSUPP;
 	if (from < 0 || from >= mtd->size || len > mtd->size - from)
 		return -EINVAL;
diff --git a/drivers/mtd/mtdpart.c b/drivers/mtd/mtdpart.c
index ea5e5307f667..5736b0c90b33 100644
--- a/drivers/mtd/mtdpart.c
+++ b/drivers/mtd/mtdpart.c
@@ -37,10 +37,16 @@
 static LIST_HEAD(mtd_partitions);
 static DEFINE_MUTEX(mtd_partitions_mutex);
 
-/* Our partition node structure */
+/**
+ * struct mtd_part - our partition node structure
+ *
+ * @mtd: struct holding partition details
+ * @parent: parent mtd - flash device or another partition
+ * @offset: partition offset relative to the *flash device*
+ */
 struct mtd_part {
 	struct mtd_info mtd;
-	struct mtd_info *master;
+	struct mtd_info *parent;
 	uint64_t offset;
 	struct list_head list;
 };
@@ -67,15 +73,15 @@ static int part_read(struct mtd_info *mtd, loff_t from, size_t len,
 	struct mtd_ecc_stats stats;
 	int res;
 
-	stats = part->master->ecc_stats;
-	res = part->master->_read(part->master, from + part->offset, len,
+	stats = part->parent->ecc_stats;
+	res = part->parent->_read(part->parent, from + part->offset, len,
 				  retlen, buf);
 	if (unlikely(mtd_is_eccerr(res)))
 		mtd->ecc_stats.failed +=
-			part->master->ecc_stats.failed - stats.failed;
+			part->parent->ecc_stats.failed - stats.failed;
 	else
 		mtd->ecc_stats.corrected +=
-			part->master->ecc_stats.corrected - stats.corrected;
+			part->parent->ecc_stats.corrected - stats.corrected;
 	return res;
 }
 
@@ -84,7 +90,7 @@ static int part_point(struct mtd_info *mtd, loff_t from, size_t len,
 {
 	struct mtd_part *part = mtd_to_part(mtd);
 
-	return part->master->_point(part->master, from + part->offset, len,
+	return part->parent->_point(part->parent, from + part->offset, len,
 				    retlen, virt, phys);
 }
 
@@ -92,7 +98,7 @@ static int part_unpoint(struct mtd_info *mtd, loff_t from, size_t len)
 {
 	struct mtd_part *part = mtd_to_part(mtd);
 
-	return part->master->_unpoint(part->master, from + part->offset, len);
+	return part->parent->_unpoint(part->parent, from + part->offset, len);
 }
 
 static unsigned long part_get_unmapped_area(struct mtd_info *mtd,
@@ -103,7 +109,7 @@ static unsigned long part_get_unmapped_area(struct mtd_info *mtd,
 	struct mtd_part *part = mtd_to_part(mtd);
 
 	offset += part->offset;
-	return part->master->_get_unmapped_area(part->master, len, offset,
+	return part->parent->_get_unmapped_area(part->parent, len, offset,
 						flags);
 }
 
@@ -132,7 +138,7 @@ static int part_read_oob(struct mtd_info *mtd, loff_t from,
 			return -EINVAL;
 	}
 
-	res = part->master->_read_oob(part->master, from + part->offset, ops);
+	res = part->parent->_read_oob(part->parent, from + part->offset, ops);
 	if (unlikely(res)) {
 		if (mtd_is_bitflip(res))
 			mtd->ecc_stats.corrected++;
@@ -146,7 +152,7 @@ static int part_read_user_prot_reg(struct mtd_info *mtd, loff_t from,
 		size_t len, size_t *retlen, u_char *buf)
 {
 	struct mtd_part *part = mtd_to_part(mtd);
-	return part->master->_read_user_prot_reg(part->master, from, len,
+	return part->parent->_read_user_prot_reg(part->parent, from, len,
 						 retlen, buf);
 }
 
@@ -154,7 +160,7 @@ static int part_get_user_prot_info(struct mtd_info *mtd, size_t len,
 				   size_t *retlen, struct otp_info *buf)
 {
 	struct mtd_part *part = mtd_to_part(mtd);
-	return part->master->_get_user_prot_info(part->master, len, retlen,
+	return part->parent->_get_user_prot_info(part->parent, len, retlen,
 						 buf);
 }
 
@@ -162,7 +168,7 @@ static int part_read_fact_prot_reg(struct mtd_info *mtd, loff_t from,
 		size_t len, size_t *retlen, u_char *buf)
 {
 	struct mtd_part *part = mtd_to_part(mtd);
-	return part->master->_read_fact_prot_reg(part->master, from, len,
+	return part->parent->_read_fact_prot_reg(part->parent, from, len,
 						 retlen, buf);
 }
 
@@ -170,7 +176,7 @@ static int part_get_fact_prot_info(struct mtd_info *mtd, size_t len,
 				   size_t *retlen, struct otp_info *buf)
 {
 	struct mtd_part *part = mtd_to_part(mtd);
-	return part->master->_get_fact_prot_info(part->master, len, retlen,
+	return part->parent->_get_fact_prot_info(part->parent, len, retlen,
 						 buf);
 }
 
@@ -178,7 +184,7 @@ static int part_write(struct mtd_info *mtd, loff_t to, size_t len,
 		size_t *retlen, const u_char *buf)
 {
 	struct mtd_part *part = mtd_to_part(mtd);
-	return part->master->_write(part->master, to + part->offset, len,
+	return part->parent->_write(part->parent, to + part->offset, len,
 				    retlen, buf);
 }
 
@@ -186,7 +192,7 @@ static int part_panic_write(struct mtd_info *mtd, loff_t to, size_t len,
 		size_t *retlen, const u_char *buf)
 {
 	struct mtd_part *part = mtd_to_part(mtd);
-	return part->master->_panic_write(part->master, to + part->offset, len,
+	return part->parent->_panic_write(part->parent, to + part->offset, len,
 					  retlen, buf);
 }
 
@@ -199,14 +205,14 @@ static int part_write_oob(struct mtd_info *mtd, loff_t to,
 		return -EINVAL;
 	if (ops->datbuf && to + ops->len > mtd->size)
 		return -EINVAL;
-	return part->master->_write_oob(part->master, to + part->offset, ops);
+	return part->parent->_write_oob(part->parent, to + part->offset, ops);
 }
 
 static int part_write_user_prot_reg(struct mtd_info *mtd, loff_t from,
 		size_t len, size_t *retlen, u_char *buf)
 {
 	struct mtd_part *part = mtd_to_part(mtd);
-	return part->master->_write_user_prot_reg(part->master, from, len,
+	return part->parent->_write_user_prot_reg(part->parent, from, len,
 						  retlen, buf);
 }
 
@@ -214,14 +220,14 @@ static int part_lock_user_prot_reg(struct mtd_info *mtd, loff_t from,
 		size_t len)
 {
 	struct mtd_part *part = mtd_to_part(mtd);
-	return part->master->_lock_user_prot_reg(part->master, from, len);
+	return part->parent->_lock_user_prot_reg(part->parent, from, len);
 }
 
 static int part_writev(struct mtd_info *mtd, const struct kvec *vecs,
 		unsigned long count, loff_t to, size_t *retlen)
 {
 	struct mtd_part *part = mtd_to_part(mtd);
-	return part->master->_writev(part->master, vecs, count,
+	return part->parent->_writev(part->parent, vecs, count,
 				     to + part->offset, retlen);
 }
 
@@ -231,7 +237,7 @@ static int part_erase(struct mtd_info *mtd, struct erase_info *instr)
 	int ret;
 
 	instr->addr += part->offset;
-	ret = part->master->_erase(part->master, instr);
+	ret = part->parent->_erase(part->parent, instr);
 	if (ret) {
 		if (instr->fail_addr != MTD_FAIL_ADDR_UNKNOWN)
 			instr->fail_addr -= part->offset;
@@ -257,51 +263,51 @@ EXPORT_SYMBOL_GPL(mtd_erase_callback);
 static int part_lock(struct mtd_info *mtd, loff_t ofs, uint64_t len)
 {
 	struct mtd_part *part = mtd_to_part(mtd);
-	return part->master->_lock(part->master, ofs + part->offset, len);
+	return part->parent->_lock(part->parent, ofs + part->offset, len);
 }
 
 static int part_unlock(struct mtd_info *mtd, loff_t ofs, uint64_t len)
 {
 	struct mtd_part *part = mtd_to_part(mtd);
-	return part->master->_unlock(part->master, ofs + part->offset, len);
+	return part->parent->_unlock(part->parent, ofs + part->offset, len);
 }
 
 static int part_is_locked(struct mtd_info *mtd, loff_t ofs, uint64_t len)
 {
 	struct mtd_part *part = mtd_to_part(mtd);
-	return part->master->_is_locked(part->master, ofs + part->offset, len);
+	return part->parent->_is_locked(part->parent, ofs + part->offset, len);
 }
 
 static void part_sync(struct mtd_info *mtd)
 {
 	struct mtd_part *part = mtd_to_part(mtd);
-	part->master->_sync(part->master);
+	part->parent->_sync(part->parent);
 }
 
 static int part_suspend(struct mtd_info *mtd)
 {
 	struct mtd_part *part = mtd_to_part(mtd);
-	return part->master->_suspend(part->master);
+	return part->parent->_suspend(part->parent);
 }
 
 static void part_resume(struct mtd_info *mtd)
 {
 	struct mtd_part *part = mtd_to_part(mtd);
-	part->master->_resume(part->master);
+	part->parent->_resume(part->parent);
 }
 
 static int part_block_isreserved(struct mtd_info *mtd, loff_t ofs)
 {
 	struct mtd_part *part = mtd_to_part(mtd);
 	ofs += part->offset;
-	return part->master->_block_isreserved(part->master, ofs);
+	return part->parent->_block_isreserved(part->parent, ofs);
 }
 
 static int part_block_isbad(struct mtd_info *mtd, loff_t ofs)
 {
 	struct mtd_part *part = mtd_to_part(mtd);
 	ofs += part->offset;
-	return part->master->_block_isbad(part->master, ofs);
+	return part->parent->_block_isbad(part->parent, ofs);
 }
 
 static int part_block_markbad(struct mtd_info *mtd, loff_t ofs)
@@ -310,7 +316,7 @@ static int part_block_markbad(struct mtd_info *mtd, loff_t ofs)
 	int res;
 
 	ofs += part->offset;
-	res = part->master->_block_markbad(part->master, ofs);
+	res = part->parent->_block_markbad(part->parent, ofs);
 	if (!res)
 		mtd->ecc_stats.badblocks++;
 	return res;
@@ -319,13 +325,13 @@ static int part_block_markbad(struct mtd_info *mtd, loff_t ofs)
 static int part_get_device(struct mtd_info *mtd)
 {
 	struct mtd_part *part = mtd_to_part(mtd);
-	return part->master->_get_device(part->master);
+	return part->parent->_get_device(part->parent);
 }
 
 static void part_put_device(struct mtd_info *mtd)
 {
 	struct mtd_part *part = mtd_to_part(mtd);
-	part->master->_put_device(part->master);
+	part->parent->_put_device(part->parent);
 }
 
 static int part_ooblayout_ecc(struct mtd_info *mtd, int section,
@@ -333,7 +339,7 @@ static int part_ooblayout_ecc(struct mtd_info *mtd, int section,
 {
 	struct mtd_part *part = mtd_to_part(mtd);
 
-	return mtd_ooblayout_ecc(part->master, section, oobregion);
+	return mtd_ooblayout_ecc(part->parent, section, oobregion);
 }
 
 static int part_ooblayout_free(struct mtd_info *mtd, int section,
@@ -341,7 +347,7 @@ static int part_ooblayout_free(struct mtd_info *mtd, int section,
 {
 	struct mtd_part *part = mtd_to_part(mtd);
 
-	return mtd_ooblayout_free(part->master, section, oobregion);
+	return mtd_ooblayout_free(part->parent, section, oobregion);
 }
 
 static const struct mtd_ooblayout_ops part_ooblayout_ops = {
@@ -353,7 +359,7 @@ static int part_max_bad_blocks(struct mtd_info *mtd, loff_t ofs, size_t len)
 {
 	struct mtd_part *part = mtd_to_part(mtd);
 
-	return part->master->_max_bad_blocks(part->master,
+	return part->parent->_max_bad_blocks(part->parent,
 					     ofs + part->offset, len);
 }
 
@@ -363,63 +369,70 @@ static inline void free_partition(struct mtd_part *p)
 	kfree(p);
 }
 
-/*
- * This function unregisters and destroy all slave MTD objects which are
- * attached to the given master MTD object.
+/**
+ * mtd_parse_part - parse MTD partition looking for subpartitions
+ *
+ * @slave: part that is supposed to be a container and should be parsed
+ * @types: NULL-terminated array with names of partition parsers to try
+ *
+ * Some partitions are kind of containers with extra subpartitions (volumes).
+ * There can be various formats of such containers. This function tries to use
+ * specified parsers to analyze given partition and registers found
+ * subpartitions on success.
  */
-
-int del_mtd_partitions(struct mtd_info *master)
+static int mtd_parse_part(struct mtd_part *slave, const char *const *types)
 {
-	struct mtd_part *slave, *next;
-	int ret, err = 0;
+	struct mtd_partitions parsed;
+	int err;
 
-	mutex_lock(&mtd_partitions_mutex);
-	list_for_each_entry_safe(slave, next, &mtd_partitions, list)
-		if (slave->master == master) {
-			ret = del_mtd_device(&slave->mtd);
-			if (ret < 0) {
-				err = ret;
-				continue;
-			}
-			list_del(&slave->list);
-			free_partition(slave);
-		}
-	mutex_unlock(&mtd_partitions_mutex);
+	err = parse_mtd_partitions(&slave->mtd, types, &parsed, NULL);
+	if (err)
+		return err;
+	else if (!parsed.nr_parts)
+		return -ENOENT;
+
+	err = add_mtd_partitions(&slave->mtd, parsed.parts, parsed.nr_parts);
+
+	mtd_part_parser_cleanup(&parsed);
 
 	return err;
 }
 
-static struct mtd_part *allocate_partition(struct mtd_info *master,
+static struct mtd_part *allocate_partition(struct mtd_info *parent,
 			const struct mtd_partition *part, int partno,
 			uint64_t cur_offset)
 {
+	int wr_alignment = (parent->flags & MTD_NO_ERASE) ? parent->writesize :
+							    parent->erasesize;
 	struct mtd_part *slave;
+	u32 remainder;
 	char *name;
+	u64 tmp;
 
 	/* allocate the partition structure */
 	slave = kzalloc(sizeof(*slave), GFP_KERNEL);
 	name = kstrdup(part->name, GFP_KERNEL);
 	if (!name || !slave) {
 		printk(KERN_ERR"memory allocation error while creating partitions for \"%s\"\n",
-		       master->name);
+		       parent->name);
 		kfree(name);
 		kfree(slave);
 		return ERR_PTR(-ENOMEM);
 	}
 
 	/* set up the MTD object for this partition */
-	slave->mtd.type = master->type;
-	slave->mtd.flags = master->flags & ~part->mask_flags;
+	slave->mtd.type = parent->type;
+	slave->mtd.flags = parent->flags & ~part->mask_flags;
 	slave->mtd.size = part->size;
-	slave->mtd.writesize = master->writesize;
-	slave->mtd.writebufsize = master->writebufsize;
-	slave->mtd.oobsize = master->oobsize;
-	slave->mtd.oobavail = master->oobavail;
-	slave->mtd.subpage_sft = master->subpage_sft;
-	slave->mtd.pairing = master->pairing;
+	slave->mtd.writesize = parent->writesize;
+	slave->mtd.writebufsize = parent->writebufsize;
+	slave->mtd.oobsize = parent->oobsize;
+	slave->mtd.oobavail = parent->oobavail;
+	slave->mtd.subpage_sft = parent->subpage_sft;
+	slave->mtd.pairing = parent->pairing;
 
 	slave->mtd.name = name;
-	slave->mtd.owner = master->owner;
+	slave->mtd.owner = parent->owner;
 
 	/* NOTE: Historically, we didn't arrange MTDs as a tree out of
 	 * concern for showing the same data in multiple partitions.
@@ -429,80 +442,81 @@ static struct mtd_part *allocate_partition(struct mtd_info *master,
 	 * parent conditional on that option. Note, this is a way to
 	 * distinguish between the master and the partition in sysfs.
 	 */
-	slave->mtd.dev.parent = IS_ENABLED(CONFIG_MTD_PARTITIONED_MASTER) ?
-				&master->dev :
-				master->dev.parent;
+	slave->mtd.dev.parent = IS_ENABLED(CONFIG_MTD_PARTITIONED_MASTER) || mtd_is_partition(parent) ?
+				&parent->dev :
+				parent->dev.parent;
 	slave->mtd.dev.of_node = part->of_node;
 
 	slave->mtd._read = part_read;
 	slave->mtd._write = part_write;
 
-	if (master->_panic_write)
+	if (parent->_panic_write)
 		slave->mtd._panic_write = part_panic_write;
 
-	if (master->_point && master->_unpoint) {
+	if (parent->_point && parent->_unpoint) {
 		slave->mtd._point = part_point;
 		slave->mtd._unpoint = part_unpoint;
 	}
 
-	if (master->_get_unmapped_area)
+	if (parent->_get_unmapped_area)
 		slave->mtd._get_unmapped_area = part_get_unmapped_area;
-	if (master->_read_oob)
+	if (parent->_read_oob)
 		slave->mtd._read_oob = part_read_oob;
-	if (master->_write_oob)
+	if (parent->_write_oob)
 		slave->mtd._write_oob = part_write_oob;
-	if (master->_read_user_prot_reg)
+	if (parent->_read_user_prot_reg)
 		slave->mtd._read_user_prot_reg = part_read_user_prot_reg;
-	if (master->_read_fact_prot_reg)
+	if (parent->_read_fact_prot_reg)
 		slave->mtd._read_fact_prot_reg = part_read_fact_prot_reg;
-	if (master->_write_user_prot_reg)
+	if (parent->_write_user_prot_reg)
 		slave->mtd._write_user_prot_reg = part_write_user_prot_reg;
-	if (master->_lock_user_prot_reg)
+	if (parent->_lock_user_prot_reg)
 		slave->mtd._lock_user_prot_reg = part_lock_user_prot_reg;
-	if (master->_get_user_prot_info)
+	if (parent->_get_user_prot_info)
 		slave->mtd._get_user_prot_info = part_get_user_prot_info;
-	if (master->_get_fact_prot_info)
+	if (parent->_get_fact_prot_info)
 		slave->mtd._get_fact_prot_info = part_get_fact_prot_info;
-	if (master->_sync)
+	if (parent->_sync)
 		slave->mtd._sync = part_sync;
-	if (!partno && !master->dev.class && master->_suspend &&
-	    master->_resume) {
-			slave->mtd._suspend = part_suspend;
-			slave->mtd._resume = part_resume;
+	if (!partno && !parent->dev.class && parent->_suspend &&
+	    parent->_resume) {
+		slave->mtd._suspend = part_suspend;
+		slave->mtd._resume = part_resume;
 	}
-	if (master->_writev)
+	if (parent->_writev)
 		slave->mtd._writev = part_writev;
-	if (master->_lock)
+	if (parent->_lock)
 		slave->mtd._lock = part_lock;
-	if (master->_unlock)
+	if (parent->_unlock)
 		slave->mtd._unlock = part_unlock;
-	if (master->_is_locked)
+	if (parent->_is_locked)
 		slave->mtd._is_locked = part_is_locked;
-	if (master->_block_isreserved)
+	if (parent->_block_isreserved)
 		slave->mtd._block_isreserved = part_block_isreserved;
-	if (master->_block_isbad)
+	if (parent->_block_isbad)
 		slave->mtd._block_isbad = part_block_isbad;
-	if (master->_block_markbad)
+	if (parent->_block_markbad)
 		slave->mtd._block_markbad = part_block_markbad;
-	if (master->_max_bad_blocks)
+	if (parent->_max_bad_blocks)
 		slave->mtd._max_bad_blocks = part_max_bad_blocks;
 
-	if (master->_get_device)
+	if (parent->_get_device)
 		slave->mtd._get_device = part_get_device;
-	if (master->_put_device)
+	if (parent->_put_device)
 		slave->mtd._put_device = part_put_device;
 
 	slave->mtd._erase = part_erase;
-	slave->master = master;
+	slave->parent = parent;
 	slave->offset = part->offset;
 
 	if (slave->offset == MTDPART_OFS_APPEND)
 		slave->offset = cur_offset;
 	if (slave->offset == MTDPART_OFS_NXTBLK) {
+		tmp = cur_offset;
 		slave->offset = cur_offset;
-		if (mtd_mod_by_eb(cur_offset, master) != 0) {
-			/* Round up to next erasesize */
-			slave->offset = (mtd_div_by_eb(cur_offset, master) + 1) * master->erasesize;
+		remainder = do_div(tmp, wr_alignment);
+		if (remainder) {
+			slave->offset += wr_alignment - remainder;
 			printk(KERN_NOTICE "Moving partition %d: "
 			       "0x%012llx -> 0x%012llx\n", partno,
 			       (unsigned long long)cur_offset, (unsigned long long)slave->offset);
@@ -510,25 +524,25 @@ static struct mtd_part *allocate_partition(struct mtd_info *master,
 	}
 	if (slave->offset == MTDPART_OFS_RETAIN) {
 		slave->offset = cur_offset;
-		if (master->size - slave->offset >= slave->mtd.size) {
-			slave->mtd.size = master->size - slave->offset
+		if (parent->size - slave->offset >= slave->mtd.size) {
+			slave->mtd.size = parent->size - slave->offset
 							- slave->mtd.size;
 		} else {
 			printk(KERN_ERR "mtd partition \"%s\" doesn't have enough space: %#llx < %#llx, disabled\n",
-				part->name, master->size - slave->offset,
+				part->name, parent->size - slave->offset,
 				slave->mtd.size);
 			/* register to preserve ordering */
 			goto out_register;
 		}
 	}
 	if (slave->mtd.size == MTDPART_SIZ_FULL)
-		slave->mtd.size = master->size - slave->offset;
+		slave->mtd.size = parent->size - slave->offset;
 
 	printk(KERN_NOTICE "0x%012llx-0x%012llx : \"%s\"\n", (unsigned long long)slave->offset,
 		(unsigned long long)(slave->offset + slave->mtd.size), slave->mtd.name);
 
 	/* let's do some sanity checks */
-	if (slave->offset >= master->size) {
+	if (slave->offset >= parent->size) {
 		/* let's register it anyway to preserve ordering */
 		slave->offset = 0;
 		slave->mtd.size = 0;
@@ -536,16 +550,16 @@ static struct mtd_part *allocate_partition(struct mtd_info *master,
 			part->name);
 		goto out_register;
 	}
-	if (slave->offset + slave->mtd.size > master->size) {
-		slave->mtd.size = master->size - slave->offset;
+	if (slave->offset + slave->mtd.size > parent->size) {
+		slave->mtd.size = parent->size - slave->offset;
 		printk(KERN_WARNING"mtd: partition \"%s\" extends beyond the end of device \"%s\" -- size truncated to %#llx\n",
-			part->name, master->name, (unsigned long long)slave->mtd.size);
+			part->name, parent->name, (unsigned long long)slave->mtd.size);
 	}
-	if (master->numeraseregions > 1) {
+	if (parent->numeraseregions > 1) {
 		/* Deal with variable erase size stuff */
-		int i, max = master->numeraseregions;
+		int i, max = parent->numeraseregions;
 		u64 end = slave->offset + slave->mtd.size;
-		struct mtd_erase_region_info *regions = master->eraseregions;
+		struct mtd_erase_region_info *regions = parent->eraseregions;
 
 		/* Find the first erase regions which is part of this
 		 * partition. */
@@ -564,37 +578,40 @@ static struct mtd_part *allocate_partition(struct mtd_info *master,
 		BUG_ON(slave->mtd.erasesize == 0);
 	} else {
 		/* Single erase size */
-		slave->mtd.erasesize = master->erasesize;
+		slave->mtd.erasesize = parent->erasesize;
 	}
 
-	if ((slave->mtd.flags & MTD_WRITEABLE) &&
-	    mtd_mod_by_eb(slave->offset, &slave->mtd)) {
+	tmp = slave->offset;
+	remainder = do_div(tmp, wr_alignment);
+	if ((slave->mtd.flags & MTD_WRITEABLE) && remainder) {
 		/* Doesn't start on a boundary of major erase size */
 		/* FIXME: Let it be writable if it is on a boundary of
 		 * _minor_ erase size though */
 		slave->mtd.flags &= ~MTD_WRITEABLE;
-		printk(KERN_WARNING"mtd: partition \"%s\" doesn't start on an erase block boundary -- force read-only\n",
+		printk(KERN_WARNING"mtd: partition \"%s\" doesn't start on an erase/write block boundary -- force read-only\n",
 			part->name);
 	}
-	if ((slave->mtd.flags & MTD_WRITEABLE) &&
-	    mtd_mod_by_eb(slave->mtd.size, &slave->mtd)) {
+
+	tmp = slave->mtd.size;
+	remainder = do_div(tmp, wr_alignment);
+	if ((slave->mtd.flags & MTD_WRITEABLE) && remainder) {
 		slave->mtd.flags &= ~MTD_WRITEABLE;
-		printk(KERN_WARNING"mtd: partition \"%s\" doesn't end on an erase block -- force read-only\n",
+		printk(KERN_WARNING"mtd: partition \"%s\" doesn't end on an erase/write block -- force read-only\n",
 			part->name);
 	}
 
 	mtd_set_ooblayout(&slave->mtd, &part_ooblayout_ops);
-	slave->mtd.ecc_step_size = master->ecc_step_size;
-	slave->mtd.ecc_strength = master->ecc_strength;
-	slave->mtd.bitflip_threshold = master->bitflip_threshold;
+	slave->mtd.ecc_step_size = parent->ecc_step_size;
+	slave->mtd.ecc_strength = parent->ecc_strength;
+	slave->mtd.bitflip_threshold = parent->bitflip_threshold;
 
-	if (master->_block_isbad) {
+	if (parent->_block_isbad) {
 		uint64_t offs = 0;
 
 		while (offs < slave->mtd.size) {
-			if (mtd_block_isreserved(master, offs + slave->offset))
+			if (mtd_block_isreserved(parent, offs + slave->offset))
 				slave->mtd.ecc_stats.bbtblocks++;
-			else if (mtd_block_isbad(master, offs + slave->offset))
+			else if (mtd_block_isbad(parent, offs + slave->offset))
 				slave->mtd.ecc_stats.badblocks++;
 			offs += slave->mtd.erasesize;
 		}
@@ -628,7 +645,7 @@ static int mtd_add_partition_attrs(struct mtd_part *new)
 	return ret;
 }
 
-int mtd_add_partition(struct mtd_info *master, const char *name,
+int mtd_add_partition(struct mtd_info *parent, const char *name,
 		      long long offset, long long length)
 {
 	struct mtd_partition part;
@@ -641,7 +658,7 @@ int mtd_add_partition(struct mtd_info *master, const char *name,
 		return -EINVAL;
 
 	if (length == MTDPART_SIZ_FULL)
-		length = master->size - offset;
+		length = parent->size - offset;
 
 	if (length <= 0)
 		return -EINVAL;
@@ -651,7 +668,7 @@ int mtd_add_partition(struct mtd_info *master, const char *name,
 	part.size = length;
 	part.offset = offset;
 
-	new = allocate_partition(master, &part, -1, offset);
+	new = allocate_partition(parent, &part, -1, offset);
 	if (IS_ERR(new))
 		return PTR_ERR(new);
 
@@ -667,23 +684,69 @@ int mtd_add_partition(struct mtd_info *master, const char *name,
 }
 EXPORT_SYMBOL_GPL(mtd_add_partition);
 
-int mtd_del_partition(struct mtd_info *master, int partno)
+/**
+ * __mtd_del_partition - delete MTD partition
+ *
+ * @priv: internal MTD struct for partition to be deleted
+ *
+ * This function must be called with the partitions mutex locked.
+ */
+static int __mtd_del_partition(struct mtd_part *priv)
+{
+	struct mtd_part *child, *next;
+	int err;
+
+	list_for_each_entry_safe(child, next, &mtd_partitions, list) {
+		if (child->parent == &priv->mtd) {
+			err = __mtd_del_partition(child);
+			if (err)
+				return err;
+		}
+	}
+
+	sysfs_remove_files(&priv->mtd.dev.kobj, mtd_partition_attrs);
+
+	err = del_mtd_device(&priv->mtd);
+	if (err)
+		return err;
+
+	list_del(&priv->list);
+	free_partition(priv);
+
+	return 0;
+}
+
+/*
+ * This function unregisters and destroy all slave MTD objects which are
+ * attached to the given MTD object.
+ */
+int del_mtd_partitions(struct mtd_info *mtd)
 {
 	struct mtd_part *slave, *next;
-	int ret = -EINVAL;
+	int ret, err = 0;
 
 	mutex_lock(&mtd_partitions_mutex);
 	list_for_each_entry_safe(slave, next, &mtd_partitions, list)
-		if ((slave->master == master) &&
-		    (slave->mtd.index == partno)) {
-			sysfs_remove_files(&slave->mtd.dev.kobj,
-					   mtd_partition_attrs);
-			ret = del_mtd_device(&slave->mtd);
+		if (slave->parent == mtd) {
+			ret = __mtd_del_partition(slave);
 			if (ret < 0)
-				break;
+				err = ret;
+		}
+	mutex_unlock(&mtd_partitions_mutex);
+
+	return err;
+}
+
+int mtd_del_partition(struct mtd_info *mtd, int partno)
+{
+	struct mtd_part *slave, *next;
+	int ret = -EINVAL;
 
-			list_del(&slave->list);
-			free_partition(slave);
+	mutex_lock(&mtd_partitions_mutex);
+	list_for_each_entry_safe(slave, next, &mtd_partitions, list)
+		if ((slave->parent == mtd) &&
+		    (slave->mtd.index == partno)) {
+			ret = __mtd_del_partition(slave);
 			break;
 		}
 	mutex_unlock(&mtd_partitions_mutex);
@@ -724,6 +787,8 @@ int add_mtd_partitions(struct mtd_info *master,
 
 		add_mtd_device(&slave->mtd);
 		mtd_add_partition_attrs(slave);
+		if (parts[i].types)
+			mtd_parse_part(slave, parts[i].types);
 
 		cur_offset = slave->offset + slave->mtd.size;
 	}
@@ -799,6 +864,27 @@ static const char * const default_mtd_part_types[] = {
 	NULL
 };
 
+static int mtd_part_do_parse(struct mtd_part_parser *parser,
+			     struct mtd_info *master,
+			     struct mtd_partitions *pparts,
+			     struct mtd_part_parser_data *data)
+{
+	int ret;
+
+	ret = (*parser->parse_fn)(master, &pparts->parts, data);
+	pr_debug("%s: parser %s: %i\n", master->name, parser->name, ret);
+	if (ret <= 0)
+		return ret;
+
+	pr_notice("%d %s partitions found on MTD device %s\n", ret,
+		  parser->name, master->name);
+
+	pparts->nr_parts = ret;
+	pparts->parser = parser;
+
+	return ret;
+}
+
 /**
  * parse_mtd_partitions - parse MTD partitions
  * @master: the master partition (describes whole MTD device)
@@ -839,16 +925,10 @@ int parse_mtd_partitions(struct mtd_info *master, const char *const *types,
 			 parser ? parser->name : NULL);
 		if (!parser)
 			continue;
-		ret = (*parser->parse_fn)(master, &pparts->parts, data);
-		pr_debug("%s: parser %s: %i\n",
-			 master->name, parser->name, ret);
-		if (ret > 0) {
-			printk(KERN_NOTICE "%d %s partitions found on MTD device %s\n",
-			       ret, parser->name, master->name);
-			pparts->nr_parts = ret;
-			pparts->parser = parser;
+		ret = mtd_part_do_parse(parser, master, pparts, data);
+		/* Found partitions! */
+		if (ret > 0)
 			return 0;
-		}
 		mtd_part_parser_put(parser);
 		/*
 		 * Stash the first error we see; only report it if no parser
@@ -899,6 +979,6 @@ uint64_t mtd_get_device_size(const struct mtd_info *mtd)
 	if (!mtd_is_partition(mtd))
 		return mtd->size;
 
-	return mtd_to_part(mtd)->master->size;
+	return mtd_get_device_size(mtd_to_part(mtd)->parent);
 }
 EXPORT_SYMBOL_GPL(mtd_get_device_size);
diff --git a/drivers/mtd/nand/Kconfig b/drivers/mtd/nand/Kconfig
index c3029528063b..dbfa72d61d5a 100644
--- a/drivers/mtd/nand/Kconfig
+++ b/drivers/mtd/nand/Kconfig
@@ -308,6 +308,7 @@ config MTD_NAND_CS553X
 config MTD_NAND_ATMEL
 	tristate "Support for NAND Flash / SmartMedia on AT91"
 	depends on ARCH_AT91
+	select MFD_ATMEL_SMC
 	help
 	  Enables support for NAND Flash / Smart Media Card interface
 	  on Atmel AT91 processors.
@@ -542,6 +543,7 @@ config MTD_NAND_SUNXI
 
 config MTD_NAND_HISI504
 	tristate "Support for NAND controller on Hisilicon SoC Hip04"
+	depends on ARCH_HISI || COMPILE_TEST
 	depends on HAS_DMA
 	help
 	  Enables support for NAND controller on Hisilicon SoC Hip04.
@@ -555,6 +557,7 @@ config MTD_NAND_QCOM
 
 config MTD_NAND_MTK
 	tristate "Support for NAND controller on MTK SoCs"
+	depends on ARCH_MEDIATEK || COMPILE_TEST
 	depends on HAS_DMA
 	help
 	  Enables support for NAND controller on MTK SoCs.
diff --git a/drivers/mtd/nand/atmel/nand-controller.c b/drivers/mtd/nand/atmel/nand-controller.c
index 3b2446896147..2c8baa0c2c4e 100644
--- a/drivers/mtd/nand/atmel/nand-controller.c
+++ b/drivers/mtd/nand/atmel/nand-controller.c
@@ -57,6 +57,7 @@
 #include <linux/interrupt.h>
 #include <linux/mfd/syscon.h>
 #include <linux/mfd/syscon/atmel-matrix.h>
+#include <linux/mfd/syscon/atmel-smc.h>
 #include <linux/module.h>
 #include <linux/mtd/nand.h>
 #include <linux/of_address.h>
@@ -64,7 +65,6 @@
 #include <linux/of_platform.h>
 #include <linux/iopoll.h>
 #include <linux/platform_device.h>
-#include <linux/platform_data/atmel.h>
 #include <linux/regmap.h>
 
 #include "pmecc.h"
@@ -151,6 +151,8 @@ struct atmel_nand_cs {
 		void __iomem *virt;
 		dma_addr_t dma;
 	} io;
+
+	struct atmel_smc_cs_conf smcconf;
 };
 
 struct atmel_nand {
@@ -196,6 +198,8 @@ struct atmel_nand_controller_ops {
 	void (*nand_init)(struct atmel_nand_controller *nc,
 			  struct atmel_nand *nand);
 	int (*ecc_init)(struct atmel_nand *nand);
+	int (*setup_data_interface)(struct atmel_nand *nand, int csline,
+				    const struct nand_data_interface *conf);
 };
 
 struct atmel_nand_controller_caps {
@@ -912,7 +916,7 @@ static int atmel_hsmc_nand_pmecc_write_pg(struct nand_chip *chip,
 	struct mtd_info *mtd = nand_to_mtd(chip);
 	struct atmel_nand *nand = to_atmel_nand(chip);
 	struct atmel_hsmc_nand_controller *nc;
-	int ret;
+	int ret, status;
 
 	nc = to_hsmc_nand_controller(chip->controller);
 
@@ -954,6 +958,10 @@ static int atmel_hsmc_nand_pmecc_write_pg(struct nand_chip *chip,
 		dev_err(nc->base.dev, "Failed to program NAND page (err = %d)\n",
 			ret);
 
+	status = chip->waitfunc(mtd, chip);
+	if (status & NAND_STATUS_FAIL)
+		return -EIO;
+
 	return ret;
 }
 
@@ -1175,6 +1183,295 @@ static int atmel_hsmc_nand_ecc_init(struct atmel_nand *nand)
 	return 0;
 }
 
+static int atmel_smc_nand_prepare_smcconf(struct atmel_nand *nand,
+					const struct nand_data_interface *conf,
+					struct atmel_smc_cs_conf *smcconf)
+{
+	u32 ncycles, totalcycles, timeps, mckperiodps;
+	struct atmel_nand_controller *nc;
+	int ret;
+
+	nc = to_nand_controller(nand->base.controller);
+
+	/* DDR interface not supported. */
+	if (conf->type != NAND_SDR_IFACE)
+		return -ENOTSUPP;
+
+	/*
+	 * tRC < 30ns implies EDO mode. This controller does not support this
+	 * mode.
+	 */
+	if (conf->timings.sdr.tRC_min < 30000)
+		return -ENOTSUPP;
+
+	atmel_smc_cs_conf_init(smcconf);
+
+	mckperiodps = NSEC_PER_SEC / clk_get_rate(nc->mck);
+	mckperiodps *= 1000;
+
+	/*
+	 * Set write pulse timing. This one is easy to extract:
+	 *
+	 * NWE_PULSE = tWP
+	 */
+	ncycles = DIV_ROUND_UP(conf->timings.sdr.tWP_min, mckperiodps);
+	totalcycles = ncycles;
+	ret = atmel_smc_cs_conf_set_pulse(smcconf, ATMEL_SMC_NWE_SHIFT,
+					  ncycles);
+	if (ret)
+		return ret;
+
+	/*
+	 * The write setup timing depends on the operation done on the NAND.
+	 * All operations goes through the same data bus, but the operation
+	 * type depends on the address we are writing to (ALE/CLE address
+	 * lines).
+	 * Since we have no way to differentiate the different operations at
+	 * the SMC level, we must consider the worst case (the biggest setup
+	 * time among all operation types):
+	 *
+	 * NWE_SETUP = max(tCLS, tCS, tALS, tDS) - NWE_PULSE
+	 */
+	timeps = max3(conf->timings.sdr.tCLS_min, conf->timings.sdr.tCS_min,
+		      conf->timings.sdr.tALS_min);
+	timeps = max(timeps, conf->timings.sdr.tDS_min);
+	ncycles = DIV_ROUND_UP(timeps, mckperiodps);
+	ncycles = ncycles > totalcycles ? ncycles - totalcycles : 0;
+	totalcycles += ncycles;
+	ret = atmel_smc_cs_conf_set_setup(smcconf, ATMEL_SMC_NWE_SHIFT,
+					  ncycles);
+	if (ret)
+		return ret;
+
+	/*
+	 * As for the write setup timing, the write hold timing depends on the
+	 * operation done on the NAND:
+	 *
+	 * NWE_HOLD = max(tCLH, tCH, tALH, tDH, tWH)
+	 */
+	timeps = max3(conf->timings.sdr.tCLH_min, conf->timings.sdr.tCH_min,
+		      conf->timings.sdr.tALH_min);
+	timeps = max3(timeps, conf->timings.sdr.tDH_min,
+		      conf->timings.sdr.tWH_min);
+	ncycles = DIV_ROUND_UP(timeps, mckperiodps);
+	totalcycles += ncycles;
+
+	/*
+	 * The write cycle timing is directly matching tWC, but is also
+	 * dependent on the other timings on the setup and hold timings we
+	 * calculated earlier, which gives:
+	 *
+	 * NWE_CYCLE = max(tWC, NWE_SETUP + NWE_PULSE + NWE_HOLD)
+	 */
+	ncycles = DIV_ROUND_UP(conf->timings.sdr.tWC_min, mckperiodps);
+	ncycles = max(totalcycles, ncycles);
+	ret = atmel_smc_cs_conf_set_cycle(smcconf, ATMEL_SMC_NWE_SHIFT,
+					  ncycles);
+	if (ret)
+		return ret;
+
+	/*
+	 * We don't want the CS line to be toggled between each byte/word
+	 * transfer to the NAND. The only way to guarantee that is to have the
+	 * NCS_{WR,RD}_{SETUP,HOLD} timings set to 0, which in turn means:
+	 *
+	 * NCS_WR_PULSE = NWE_CYCLE
+	 */
+	ret = atmel_smc_cs_conf_set_pulse(smcconf, ATMEL_SMC_NCS_WR_SHIFT,
+					  ncycles);
+	if (ret)
+		return ret;
+
+	/*
+	 * As for the write setup timing, the read hold timing depends on the
+	 * operation done on the NAND:
+	 *
+	 * NRD_HOLD = max(tREH, tRHOH)
+	 */
+	timeps = max(conf->timings.sdr.tREH_min, conf->timings.sdr.tRHOH_min);
+	ncycles = DIV_ROUND_UP(timeps, mckperiodps);
+	totalcycles = ncycles;
+
+	/*
+	 * TDF = tRHZ - NRD_HOLD
+	 */
+	ncycles = DIV_ROUND_UP(conf->timings.sdr.tRHZ_max, mckperiodps);
+	ncycles -= totalcycles;
+
+	/*
+	 * In ONFI 4.0 specs, tRHZ has been increased to support EDO NANDs and
+	 * we might end up with a config that does not fit in the TDF field.
+	 * Just take the max value in this case and hope that the NAND is more
+	 * tolerant than advertised.
+	 */
+	if (ncycles > ATMEL_SMC_MODE_TDF_MAX)
+		ncycles = ATMEL_SMC_MODE_TDF_MAX;
+	else if (ncycles < ATMEL_SMC_MODE_TDF_MIN)
+		ncycles = ATMEL_SMC_MODE_TDF_MIN;
+
+	smcconf->mode |= ATMEL_SMC_MODE_TDF(ncycles) |
+			 ATMEL_SMC_MODE_TDFMODE_OPTIMIZED;
+
+	/*
+	 * Read pulse timing directly matches tRP:
+	 *
+	 * NRD_PULSE = tRP
+	 */
+	ncycles = DIV_ROUND_UP(conf->timings.sdr.tRP_min, mckperiodps);
+	totalcycles += ncycles;
+	ret = atmel_smc_cs_conf_set_pulse(smcconf, ATMEL_SMC_NRD_SHIFT,
+					  ncycles);
+	if (ret)
+		return ret;
+
+	/*
+	 * The write cycle timing is directly matching tWC, but is also
+	 * dependent on the setup and hold timings we calculated earlier,
+	 * which gives:
+	 *
+	 * NRD_CYCLE = max(tRC, NRD_PULSE + NRD_HOLD)
+	 *
+	 * NRD_SETUP is always 0.
+	 */
+	ncycles = DIV_ROUND_UP(conf->timings.sdr.tRC_min, mckperiodps);
+	ncycles = max(totalcycles, ncycles);
+	ret = atmel_smc_cs_conf_set_cycle(smcconf, ATMEL_SMC_NRD_SHIFT,
+					  ncycles);
+	if (ret)
+		return ret;
+
+	/*
+	 * We don't want the CS line to be toggled between each byte/word
+	 * transfer from the NAND. The only way to guarantee that is to have
+	 * the NCS_{WR,RD}_{SETUP,HOLD} timings set to 0, which in turn means:
+	 *
+	 * NCS_RD_PULSE = NRD_CYCLE
+	 */
+	ret = atmel_smc_cs_conf_set_pulse(smcconf, ATMEL_SMC_NCS_RD_SHIFT,
+					  ncycles);
+	if (ret)
+		return ret;
+
+	/* Txxx timings are directly matching tXXX ones. */
+	ncycles = DIV_ROUND_UP(conf->timings.sdr.tCLR_min, mckperiodps);
+	ret = atmel_smc_cs_conf_set_timing(smcconf,
+					   ATMEL_HSMC_TIMINGS_TCLR_SHIFT,
+					   ncycles);
+	if (ret)
+		return ret;
+
+	ncycles = DIV_ROUND_UP(conf->timings.sdr.tADL_min, mckperiodps);
+	ret = atmel_smc_cs_conf_set_timing(smcconf,
+					   ATMEL_HSMC_TIMINGS_TADL_SHIFT,
+					   ncycles);
+	if (ret)
+		return ret;
+
+	ncycles = DIV_ROUND_UP(conf->timings.sdr.tAR_min, mckperiodps);
+	ret = atmel_smc_cs_conf_set_timing(smcconf,
+					   ATMEL_HSMC_TIMINGS_TAR_SHIFT,
+					   ncycles);
+	if (ret)
+		return ret;
+
+	ncycles = DIV_ROUND_UP(conf->timings.sdr.tRR_min, mckperiodps);
+	ret = atmel_smc_cs_conf_set_timing(smcconf,
+					   ATMEL_HSMC_TIMINGS_TRR_SHIFT,
+					   ncycles);
+	if (ret)
+		return ret;
+
+	ncycles = DIV_ROUND_UP(conf->timings.sdr.tWB_max, mckperiodps);
+	ret = atmel_smc_cs_conf_set_timing(smcconf,
+					   ATMEL_HSMC_TIMINGS_TWB_SHIFT,
+					   ncycles);
+	if (ret)
+		return ret;
+
+	/* Attach the CS line to the NFC logic. */
+	smcconf->timings |= ATMEL_HSMC_TIMINGS_NFSEL;
+
+	/* Set the appropriate data bus width. */
+	if (nand->base.options & NAND_BUSWIDTH_16)
+		smcconf->mode |= ATMEL_SMC_MODE_DBW_16;
+
+	/* Operate in NRD/NWE READ/WRITEMODE. */
+	smcconf->mode |= ATMEL_SMC_MODE_READMODE_NRD |
+			 ATMEL_SMC_MODE_WRITEMODE_NWE;
+
+	return 0;
+}
+
+static int atmel_smc_nand_setup_data_interface(struct atmel_nand *nand,
+					int csline,
+					const struct nand_data_interface *conf)
+{
+	struct atmel_nand_controller *nc;
+	struct atmel_smc_cs_conf smcconf;
+	struct atmel_nand_cs *cs;
+	int ret;
+
+	nc = to_nand_controller(nand->base.controller);
+
+	ret = atmel_smc_nand_prepare_smcconf(nand, conf, &smcconf);
+	if (ret)
+		return ret;
+
+	if (csline == NAND_DATA_IFACE_CHECK_ONLY)
+		return 0;
+
+	cs = &nand->cs[csline];
+	cs->smcconf = smcconf;
+	atmel_smc_cs_conf_apply(nc->smc, cs->id, &cs->smcconf);
+
+	return 0;
+}
+
+static int atmel_hsmc_nand_setup_data_interface(struct atmel_nand *nand,
+					int csline,
+					const struct nand_data_interface *conf)
+{
+	struct atmel_nand_controller *nc;
+	struct atmel_smc_cs_conf smcconf;
+	struct atmel_nand_cs *cs;
+	int ret;
+
+	nc = to_nand_controller(nand->base.controller);
+
+	ret = atmel_smc_nand_prepare_smcconf(nand, conf, &smcconf);
+	if (ret)
+		return ret;
+
+	if (csline == NAND_DATA_IFACE_CHECK_ONLY)
+		return 0;
+
+	cs = &nand->cs[csline];
+	cs->smcconf = smcconf;
+
+	if (cs->rb.type == ATMEL_NAND_NATIVE_RB)
+		cs->smcconf.timings |= ATMEL_HSMC_TIMINGS_RBNSEL(cs->rb.id);
+
+	atmel_hsmc_cs_conf_apply(nc->smc, cs->id, &cs->smcconf);
+
+	return 0;
+}
+
+static int atmel_nand_setup_data_interface(struct mtd_info *mtd, int csline,
+					const struct nand_data_interface *conf)
+{
+	struct nand_chip *chip = mtd_to_nand(mtd);
+	struct atmel_nand *nand = to_atmel_nand(chip);
+	struct atmel_nand_controller *nc;
+
+	nc = to_nand_controller(nand->base.controller);
+
+	if (csline >= nand->numcs ||
+	    (csline < 0 && csline != NAND_DATA_IFACE_CHECK_ONLY))
+		return -EINVAL;
+
+	return nc->caps->ops->setup_data_interface(nand, csline, conf);
+}
+
 static void atmel_nand_init(struct atmel_nand_controller *nc,
 			    struct atmel_nand *nand)
 {
@@ -1192,6 +1489,9 @@ static void atmel_nand_init(struct atmel_nand_controller *nc,
 	chip->write_buf = atmel_nand_write_buf;
 	chip->select_chip = atmel_nand_select_chip;
 
+	if (nc->mck && nc->caps->ops->setup_data_interface)
+		chip->setup_data_interface = atmel_nand_setup_data_interface;
+
 	/* Some NANDs require a longer delay than the default one (20us). */
 	chip->chip_delay = 40;
 
@@ -1677,6 +1977,12 @@ static int atmel_nand_controller_init(struct atmel_nand_controller *nc,
 	if (nc->caps->legacy_of_bindings)
 		return 0;
 
+	nc->mck = of_clk_get(dev->parent->of_node, 0);
+	if (IS_ERR(nc->mck)) {
+		dev_err(dev, "Failed to retrieve MCK clk\n");
+		return PTR_ERR(nc->mck);
+	}
+
 	np = of_parse_phandle(dev->parent->of_node, "atmel,smc", 0);
 	if (!np) {
 		dev_err(dev, "Missing or invalid atmel,smc property\n");
@@ -1983,6 +2289,7 @@ static const struct atmel_nand_controller_ops atmel_hsmc_nc_ops = {
 	.remove = atmel_hsmc_nand_controller_remove,
 	.ecc_init = atmel_hsmc_nand_ecc_init,
 	.nand_init = atmel_hsmc_nand_init,
+	.setup_data_interface = atmel_hsmc_nand_setup_data_interface,
 };
 
 static const struct atmel_nand_controller_caps atmel_sama5_nc_caps = {
@@ -2037,7 +2344,14 @@ atmel_smc_nand_controller_remove(struct atmel_nand_controller *nc)
 	return 0;
 }
 
-static const struct atmel_nand_controller_ops atmel_smc_nc_ops = {
+/*
+ * The SMC reg layout of at91rm9200 is completely different which prevents us
+ * from re-using atmel_smc_nand_setup_data_interface() for the
+ * ->setup_data_interface() hook.
+ * At this point, there's no support for the at91rm9200 SMC IP, so we leave
+ * ->setup_data_interface() unassigned.
+ */
+static const struct atmel_nand_controller_ops at91rm9200_nc_ops = {
 	.probe = atmel_smc_nand_controller_probe,
 	.remove = atmel_smc_nand_controller_remove,
 	.ecc_init = atmel_nand_ecc_init,
@@ -2047,6 +2361,20 @@ static const struct atmel_nand_controller_ops atmel_smc_nc_ops = {
 static const struct atmel_nand_controller_caps atmel_rm9200_nc_caps = {
 	.ale_offs = BIT(21),
 	.cle_offs = BIT(22),
+	.ops = &at91rm9200_nc_ops,
+};
+
+static const struct atmel_nand_controller_ops atmel_smc_nc_ops = {
+	.probe = atmel_smc_nand_controller_probe,
+	.remove = atmel_smc_nand_controller_remove,
+	.ecc_init = atmel_nand_ecc_init,
+	.nand_init = atmel_smc_nand_init,
+	.setup_data_interface = atmel_smc_nand_setup_data_interface,
+};
+
+static const struct atmel_nand_controller_caps atmel_sam9260_nc_caps = {
+	.ale_offs = BIT(21),
+	.cle_offs = BIT(22),
 	.ops = &atmel_smc_nc_ops,
 };
 
@@ -2093,7 +2421,7 @@ static const struct of_device_id atmel_nand_controller_of_ids[] = {
 	},
 	{
 		.compatible = "atmel,at91sam9260-nand-controller",
-		.data = &atmel_rm9200_nc_caps,
+		.data = &atmel_sam9260_nc_caps,
 	},
 	{
 		.compatible = "atmel,at91sam9261-nand-controller",
@@ -2181,6 +2509,24 @@ static int atmel_nand_controller_remove(struct platform_device *pdev)
 	return nc->caps->ops->remove(nc);
 }
 
+static __maybe_unused int atmel_nand_controller_resume(struct device *dev)
+{
+	struct atmel_nand_controller *nc = dev_get_drvdata(dev);
+	struct atmel_nand *nand;
+
+	list_for_each_entry(nand, &nc->chips, node) {
+		int i;
+
+		for (i = 0; i < nand->numcs; i++)
+			nand_reset(&nand->base, i);
+	}
+
+	return 0;
+}
+
+static SIMPLE_DEV_PM_OPS(atmel_nand_controller_pm_ops, NULL,
+			 atmel_nand_controller_resume);
+
 static struct platform_driver atmel_nand_controller_driver = {
 	.driver = {
 		.name = "atmel-nand-controller",
diff --git a/drivers/mtd/nand/atmel/pmecc.c b/drivers/mtd/nand/atmel/pmecc.c
index 55a8ee5306ea..8c210a5776bc 100644
--- a/drivers/mtd/nand/atmel/pmecc.c
+++ b/drivers/mtd/nand/atmel/pmecc.c
@@ -945,6 +945,7 @@ struct atmel_pmecc *devm_atmel_pmecc_get(struct device *userdev)
 		 */
 		struct platform_device *pdev = to_platform_device(userdev);
 		const struct atmel_pmecc_caps *caps;
+		const struct of_device_id *match;
 
 		/* No PMECC engine available. */
 		if (!of_property_read_bool(userdev->of_node,
@@ -953,21 +954,11 @@ struct atmel_pmecc *devm_atmel_pmecc_get(struct device *userdev)
 
 		caps = &at91sam9g45_caps;
 
-		/*
-		 * Try to find the NFC subnode and extract the associated caps
-		 * from there.
-		 */
-		np = of_find_compatible_node(userdev->of_node, NULL,
-					     "atmel,sama5d3-nfc");
-		if (np) {
-			const struct of_device_id *match;
-
-			match = of_match_node(atmel_pmecc_legacy_match, np);
-			if (match && match->data)
-				caps = match->data;
-
-			of_node_put(np);
-		}
+		/* Find the caps associated to the NAND dev node. */
+		match = of_match_node(atmel_pmecc_legacy_match,
+				      userdev->of_node);
+		if (match && match->data)
+			caps = match->data;
 
 		pmecc = atmel_pmecc_create(pdev, caps, 1, 2);
 	}
diff --git a/drivers/mtd/nand/bcm47xxnflash/ops_bcm4706.c b/drivers/mtd/nand/bcm47xxnflash/ops_bcm4706.c
index f1da4ea88f2c..54bac5b73f0a 100644
--- a/drivers/mtd/nand/bcm47xxnflash/ops_bcm4706.c
+++ b/drivers/mtd/nand/bcm47xxnflash/ops_bcm4706.c
@@ -392,6 +392,8 @@ int bcm47xxnflash_ops_bcm4706_init(struct bcm47xxnflash *b47n)
 	b47n->nand_chip.read_byte = bcm47xxnflash_ops_bcm4706_read_byte;
 	b47n->nand_chip.read_buf = bcm47xxnflash_ops_bcm4706_read_buf;
 	b47n->nand_chip.write_buf = bcm47xxnflash_ops_bcm4706_write_buf;
+	b47n->nand_chip.onfi_set_features = nand_onfi_get_set_features_notsupp;
+	b47n->nand_chip.onfi_get_features = nand_onfi_get_set_features_notsupp;
 
 	nand_chip->chip_delay = 50;
 	b47n->nand_chip.bbt_options = NAND_BBT_USE_FLASH;
diff --git a/drivers/mtd/nand/cafe_nand.c b/drivers/mtd/nand/cafe_nand.c
index d40c32d311d8..2fd733eba0a3 100644
--- a/drivers/mtd/nand/cafe_nand.c
+++ b/drivers/mtd/nand/cafe_nand.c
@@ -654,6 +654,8 @@ static int cafe_nand_probe(struct pci_dev *pdev,
 	cafe->nand.read_buf = cafe_read_buf;
 	cafe->nand.write_buf = cafe_write_buf;
 	cafe->nand.select_chip = cafe_select_chip;
+	cafe->nand.onfi_set_features = nand_onfi_get_set_features_notsupp;
+	cafe->nand.onfi_get_features = nand_onfi_get_set_features_notsupp;
 
 	cafe->nand.chip_delay = 0;
 
diff --git a/drivers/mtd/nand/davinci_nand.c b/drivers/mtd/nand/davinci_nand.c
index 531c51991e57..7b26e53b95b1 100644
--- a/drivers/mtd/nand/davinci_nand.c
+++ b/drivers/mtd/nand/davinci_nand.c
@@ -771,11 +771,14 @@ static int nand_davinci_probe(struct platform_device *pdev)
 			info->chip.ecc.hwctl = nand_davinci_hwctl_4bit;
 			info->chip.ecc.bytes = 10;
 			info->chip.ecc.options = NAND_ECC_GENERIC_ERASED_CHECK;
+			info->chip.ecc.algo = NAND_ECC_BCH;
 		} else {
+			/* 1bit ecc hamming */
 			info->chip.ecc.calculate = nand_davinci_calculate_1bit;
 			info->chip.ecc.correct = nand_davinci_correct_1bit;
 			info->chip.ecc.hwctl = nand_davinci_hwctl_1bit;
 			info->chip.ecc.bytes = 3;
+			info->chip.ecc.algo = NAND_ECC_HAMMING;
 		}
 		info->chip.ecc.size = 512;
 		info->chip.ecc.strength = pdata->ecc_bits;
diff --git a/drivers/mtd/nand/denali.c b/drivers/mtd/nand/denali.c
index 16634df2e39a..d723be352148 100644
--- a/drivers/mtd/nand/denali.c
+++ b/drivers/mtd/nand/denali.c
@@ -23,50 +23,43 @@
 #include <linux/mutex.h>
 #include <linux/mtd/mtd.h>
 #include <linux/module.h>
+#include <linux/slab.h>
 
 #include "denali.h"
 
 MODULE_LICENSE("GPL");
 
-/*
- * We define a module parameter that allows the user to override
- * the hardware and decide what timing mode should be used.
- */
-#define NAND_DEFAULT_TIMINGS	-1
+#define DENALI_NAND_NAME    "denali-nand"
 
-static int onfi_timing_mode = NAND_DEFAULT_TIMINGS;
-module_param(onfi_timing_mode, int, S_IRUGO);
-MODULE_PARM_DESC(onfi_timing_mode,
-	   "Overrides default ONFI setting. -1 indicates use default timings");
+/* Host Data/Command Interface */
+#define DENALI_HOST_ADDR	0x00
+#define DENALI_HOST_DATA	0x10
 
-#define DENALI_NAND_NAME    "denali-nand"
+#define DENALI_MAP00		(0 << 26)	/* direct access to buffer */
+#define DENALI_MAP01		(1 << 26)	/* read/write pages in PIO */
+#define DENALI_MAP10		(2 << 26)	/* high-level control plane */
+#define DENALI_MAP11		(3 << 26)	/* direct controller access */
 
-/*
- * We define a macro here that combines all interrupts this driver uses into
- * a single constant value, for convenience.
- */
-#define DENALI_IRQ_ALL	(INTR__DMA_CMD_COMP | \
-			INTR__ECC_TRANSACTION_DONE | \
-			INTR__ECC_ERR | \
-			INTR__PROGRAM_FAIL | \
-			INTR__LOAD_COMP | \
-			INTR__PROGRAM_COMP | \
-			INTR__TIME_OUT | \
-			INTR__ERASE_FAIL | \
-			INTR__RST_COMP | \
-			INTR__ERASE_COMP)
+/* MAP11 access cycle type */
+#define DENALI_MAP11_CMD	((DENALI_MAP11) | 0)	/* command cycle */
+#define DENALI_MAP11_ADDR	((DENALI_MAP11) | 1)	/* address cycle */
+#define DENALI_MAP11_DATA	((DENALI_MAP11) | 2)	/* data cycle */
 
-/*
- * indicates whether or not the internal value for the flash bank is
- * valid or not
- */
-#define CHIP_SELECT_INVALID	-1
+/* MAP10 commands */
+#define DENALI_ERASE		0x01
+
+#define DENALI_BANK(denali)	((denali)->active_bank << 24)
+
+#define DENALI_INVALID_BANK	-1
+#define DENALI_NR_BANKS		4
 
 /*
- * This macro divides two integers and rounds fractional values up
- * to the nearest integer value.
+ * The bus interface clock, clk_x, is phase aligned with the core clock.  The
+ * clk_x is an integral multiple N of the core clk.  The value N is configured
+ * at IP delivery time, and its available value is 4, 5, or 6.  We need to align
+ * to the largest value to make it work with any possible configuration.
  */
-#define CEIL_DIV(X, Y) (((X)%(Y)) ? ((X)/(Y)+1) : ((X)/(Y)))
+#define DENALI_CLK_X_MULT	6
 
 /*
  * this macro allows us to convert from an MTD structure to our own
@@ -77,339 +70,11 @@ static inline struct denali_nand_info *mtd_to_denali(struct mtd_info *mtd)
 	return container_of(mtd_to_nand(mtd), struct denali_nand_info, nand);
 }
 
-/*
- * These constants are defined by the driver to enable common driver
- * configuration options.
- */
-#define SPARE_ACCESS		0x41
-#define MAIN_ACCESS		0x42
-#define MAIN_SPARE_ACCESS	0x43
-
-#define DENALI_READ	0
-#define DENALI_WRITE	0x100
-
-/*
- * this is a helper macro that allows us to
- * format the bank into the proper bits for the controller
- */
-#define BANK(x) ((x) << 24)
-
-/* forward declarations */
-static void clear_interrupts(struct denali_nand_info *denali);
-static uint32_t wait_for_irq(struct denali_nand_info *denali,
-							uint32_t irq_mask);
-static void denali_irq_enable(struct denali_nand_info *denali,
-							uint32_t int_mask);
-static uint32_t read_interrupt_status(struct denali_nand_info *denali);
-
-/*
- * Certain operations for the denali NAND controller use an indexed mode to
- * read/write data. The operation is performed by writing the address value
- * of the command to the device memory followed by the data. This function
- * abstracts this common operation.
- */
-static void index_addr(struct denali_nand_info *denali,
-				uint32_t address, uint32_t data)
-{
-	iowrite32(address, denali->flash_mem);
-	iowrite32(data, denali->flash_mem + 0x10);
-}
-
-/* Perform an indexed read of the device */
-static void index_addr_read_data(struct denali_nand_info *denali,
-				 uint32_t address, uint32_t *pdata)
-{
-	iowrite32(address, denali->flash_mem);
-	*pdata = ioread32(denali->flash_mem + 0x10);
-}
-
-/*
- * We need to buffer some data for some of the NAND core routines.
- * The operations manage buffering that data.
- */
-static void reset_buf(struct denali_nand_info *denali)
-{
-	denali->buf.head = denali->buf.tail = 0;
-}
-
-static void write_byte_to_buf(struct denali_nand_info *denali, uint8_t byte)
-{
-	denali->buf.buf[denali->buf.tail++] = byte;
-}
-
-/* reads the status of the device */
-static void read_status(struct denali_nand_info *denali)
-{
-	uint32_t cmd;
-
-	/* initialize the data buffer to store status */
-	reset_buf(denali);
-
-	cmd = ioread32(denali->flash_reg + WRITE_PROTECT);
-	if (cmd)
-		write_byte_to_buf(denali, NAND_STATUS_WP);
-	else
-		write_byte_to_buf(denali, 0);
-}
-
-/* resets a specific device connected to the core */
-static void reset_bank(struct denali_nand_info *denali)
-{
-	uint32_t irq_status;
-	uint32_t irq_mask = INTR__RST_COMP | INTR__TIME_OUT;
-
-	clear_interrupts(denali);
-
-	iowrite32(1 << denali->flash_bank, denali->flash_reg + DEVICE_RESET);
-
-	irq_status = wait_for_irq(denali, irq_mask);
-
-	if (irq_status & INTR__TIME_OUT)
-		dev_err(denali->dev, "reset bank failed.\n");
-}
-
-/* Reset the flash controller */
-static uint16_t denali_nand_reset(struct denali_nand_info *denali)
-{
-	int i;
-
-	for (i = 0; i < denali->max_banks; i++)
-		iowrite32(INTR__RST_COMP | INTR__TIME_OUT,
-		denali->flash_reg + INTR_STATUS(i));
-
-	for (i = 0; i < denali->max_banks; i++) {
-		iowrite32(1 << i, denali->flash_reg + DEVICE_RESET);
-		while (!(ioread32(denali->flash_reg + INTR_STATUS(i)) &
-			(INTR__RST_COMP | INTR__TIME_OUT)))
-			cpu_relax();
-		if (ioread32(denali->flash_reg + INTR_STATUS(i)) &
-			INTR__TIME_OUT)
-			dev_dbg(denali->dev,
-			"NAND Reset operation timed out on bank %d\n", i);
-	}
-
-	for (i = 0; i < denali->max_banks; i++)
-		iowrite32(INTR__RST_COMP | INTR__TIME_OUT,
-			  denali->flash_reg + INTR_STATUS(i));
-
-	return PASS;
-}
-
-/*
- * this routine calculates the ONFI timing values for a given mode and
- * programs the clocking register accordingly. The mode is determined by
- * the get_onfi_nand_para routine.
- */
-static void nand_onfi_timing_set(struct denali_nand_info *denali,
-								uint16_t mode)
-{
-	uint16_t Trea[6] = {40, 30, 25, 20, 20, 16};
-	uint16_t Trp[6] = {50, 25, 17, 15, 12, 10};
-	uint16_t Treh[6] = {30, 15, 15, 10, 10, 7};
-	uint16_t Trc[6] = {100, 50, 35, 30, 25, 20};
-	uint16_t Trhoh[6] = {0, 15, 15, 15, 15, 15};
-	uint16_t Trloh[6] = {0, 0, 0, 0, 5, 5};
-	uint16_t Tcea[6] = {100, 45, 30, 25, 25, 25};
-	uint16_t Tadl[6] = {200, 100, 100, 100, 70, 70};
-	uint16_t Trhw[6] = {200, 100, 100, 100, 100, 100};
-	uint16_t Trhz[6] = {200, 100, 100, 100, 100, 100};
-	uint16_t Twhr[6] = {120, 80, 80, 60, 60, 60};
-	uint16_t Tcs[6] = {70, 35, 25, 25, 20, 15};
-
-	uint16_t data_invalid_rhoh, data_invalid_rloh, data_invalid;
-	uint16_t dv_window = 0;
-	uint16_t en_lo, en_hi;
-	uint16_t acc_clks;
-	uint16_t addr_2_data, re_2_we, re_2_re, we_2_re, cs_cnt;
-
-	en_lo = CEIL_DIV(Trp[mode], CLK_X);
-	en_hi = CEIL_DIV(Treh[mode], CLK_X);
-#if ONFI_BLOOM_TIME
-	if ((en_hi * CLK_X) < (Treh[mode] + 2))
-		en_hi++;
-#endif
-
-	if ((en_lo + en_hi) * CLK_X < Trc[mode])
-		en_lo += CEIL_DIV((Trc[mode] - (en_lo + en_hi) * CLK_X), CLK_X);
-
-	if ((en_lo + en_hi) < CLK_MULTI)
-		en_lo += CLK_MULTI - en_lo - en_hi;
-
-	while (dv_window < 8) {
-		data_invalid_rhoh = en_lo * CLK_X + Trhoh[mode];
-
-		data_invalid_rloh = (en_lo + en_hi) * CLK_X + Trloh[mode];
-
-		data_invalid = data_invalid_rhoh < data_invalid_rloh ?
-					data_invalid_rhoh : data_invalid_rloh;
-
-		dv_window = data_invalid - Trea[mode];
-
-		if (dv_window < 8)
-			en_lo++;
-	}
-
-	acc_clks = CEIL_DIV(Trea[mode], CLK_X);
-
-	while (acc_clks * CLK_X - Trea[mode] < 3)
-		acc_clks++;
-
-	if (data_invalid - acc_clks * CLK_X < 2)
-		dev_warn(denali->dev, "%s, Line %d: Warning!\n",
-			 __FILE__, __LINE__);
-
-	addr_2_data = CEIL_DIV(Tadl[mode], CLK_X);
-	re_2_we = CEIL_DIV(Trhw[mode], CLK_X);
-	re_2_re = CEIL_DIV(Trhz[mode], CLK_X);
-	we_2_re = CEIL_DIV(Twhr[mode], CLK_X);
-	cs_cnt = CEIL_DIV((Tcs[mode] - Trp[mode]), CLK_X);
-	if (cs_cnt == 0)
-		cs_cnt = 1;
-
-	if (Tcea[mode]) {
-		while (cs_cnt * CLK_X + Trea[mode] < Tcea[mode])
-			cs_cnt++;
-	}
-
-#if MODE5_WORKAROUND
-	if (mode == 5)
-		acc_clks = 5;
-#endif
-
-	/* Sighting 3462430: Temporary hack for MT29F128G08CJABAWP:B */
-	if (ioread32(denali->flash_reg + MANUFACTURER_ID) == 0 &&
-		ioread32(denali->flash_reg + DEVICE_ID) == 0x88)
-		acc_clks = 6;
-
-	iowrite32(acc_clks, denali->flash_reg + ACC_CLKS);
-	iowrite32(re_2_we, denali->flash_reg + RE_2_WE);
-	iowrite32(re_2_re, denali->flash_reg + RE_2_RE);
-	iowrite32(we_2_re, denali->flash_reg + WE_2_RE);
-	iowrite32(addr_2_data, denali->flash_reg + ADDR_2_DATA);
-	iowrite32(en_lo, denali->flash_reg + RDWR_EN_LO_CNT);
-	iowrite32(en_hi, denali->flash_reg + RDWR_EN_HI_CNT);
-	iowrite32(cs_cnt, denali->flash_reg + CS_SETUP_CNT);
-}
-
-/* queries the NAND device to see what ONFI modes it supports. */
-static uint16_t get_onfi_nand_para(struct denali_nand_info *denali)
+static void denali_host_write(struct denali_nand_info *denali,
+			      uint32_t addr, uint32_t data)
 {
-	int i;
-
-	/*
-	 * we needn't to do a reset here because driver has already
-	 * reset all the banks before
-	 */
-	if (!(ioread32(denali->flash_reg + ONFI_TIMING_MODE) &
-		ONFI_TIMING_MODE__VALUE))
-		return FAIL;
-
-	for (i = 5; i > 0; i--) {
-		if (ioread32(denali->flash_reg + ONFI_TIMING_MODE) &
-			(0x01 << i))
-			break;
-	}
-
-	nand_onfi_timing_set(denali, i);
-
-	/*
-	 * By now, all the ONFI devices we know support the page cache
-	 * rw feature. So here we enable the pipeline_rw_ahead feature
-	 */
-	/* iowrite32(1, denali->flash_reg + CACHE_WRITE_ENABLE); */
-	/* iowrite32(1, denali->flash_reg + CACHE_READ_ENABLE);  */
-
-	return PASS;
-}
-
-static void get_samsung_nand_para(struct denali_nand_info *denali,
-							uint8_t device_id)
-{
-	if (device_id == 0xd3) { /* Samsung K9WAG08U1A */
-		/* Set timing register values according to datasheet */
-		iowrite32(5, denali->flash_reg + ACC_CLKS);
-		iowrite32(20, denali->flash_reg + RE_2_WE);
-		iowrite32(12, denali->flash_reg + WE_2_RE);
-		iowrite32(14, denali->flash_reg + ADDR_2_DATA);
-		iowrite32(3, denali->flash_reg + RDWR_EN_LO_CNT);
-		iowrite32(2, denali->flash_reg + RDWR_EN_HI_CNT);
-		iowrite32(2, denali->flash_reg + CS_SETUP_CNT);
-	}
-}
-
-static void get_toshiba_nand_para(struct denali_nand_info *denali)
-{
-	/*
-	 * Workaround to fix a controller bug which reports a wrong
-	 * spare area size for some kind of Toshiba NAND device
-	 */
-	if ((ioread32(denali->flash_reg + DEVICE_MAIN_AREA_SIZE) == 4096) &&
-		(ioread32(denali->flash_reg + DEVICE_SPARE_AREA_SIZE) == 64))
-		iowrite32(216, denali->flash_reg + DEVICE_SPARE_AREA_SIZE);
-}
-
-static void get_hynix_nand_para(struct denali_nand_info *denali,
-							uint8_t device_id)
-{
-	switch (device_id) {
-	case 0xD5: /* Hynix H27UAG8T2A, H27UBG8U5A or H27UCG8VFA */
-	case 0xD7: /* Hynix H27UDG8VEM, H27UCG8UDM or H27UCG8V5A */
-		iowrite32(128, denali->flash_reg + PAGES_PER_BLOCK);
-		iowrite32(4096, denali->flash_reg + DEVICE_MAIN_AREA_SIZE);
-		iowrite32(224, denali->flash_reg + DEVICE_SPARE_AREA_SIZE);
-		iowrite32(0, denali->flash_reg + DEVICE_WIDTH);
-		break;
-	default:
-		dev_warn(denali->dev,
-			 "Unknown Hynix NAND (Device ID: 0x%x).\n"
-			 "Will use default parameter values instead.\n",
-			 device_id);
-	}
-}
-
-/*
- * determines how many NAND chips are connected to the controller. Note for
- * Intel CE4100 devices we don't support more than one device.
- */
-static void find_valid_banks(struct denali_nand_info *denali)
-{
-	uint32_t id[denali->max_banks];
-	int i;
-
-	denali->total_used_banks = 1;
-	for (i = 0; i < denali->max_banks; i++) {
-		index_addr(denali, MODE_11 | (i << 24) | 0, 0x90);
-		index_addr(denali, MODE_11 | (i << 24) | 1, 0);
-		index_addr_read_data(denali, MODE_11 | (i << 24) | 2, &id[i]);
-
-		dev_dbg(denali->dev,
-			"Return 1st ID for bank[%d]: %x\n", i, id[i]);
-
-		if (i == 0) {
-			if (!(id[i] & 0x0ff))
-				break; /* WTF? */
-		} else {
-			if ((id[i] & 0x0ff) == (id[0] & 0x0ff))
-				denali->total_used_banks++;
-			else
-				break;
-		}
-	}
-
-	if (denali->platform == INTEL_CE4100) {
-		/*
-		 * Platform limitations of the CE4100 device limit
-		 * users to a single chip solution for NAND.
-		 * Multichip support is not enabled.
-		 */
-		if (denali->total_used_banks != 1) {
-			dev_err(denali->dev,
-				"Sorry, Intel CE4100 only supports a single NAND device.\n");
-			BUG();
-		}
-	}
-	dev_dbg(denali->dev,
-		"denali->total_used_banks: %d\n", denali->total_used_banks);
+	iowrite32(addr, denali->host + DENALI_HOST_ADDR);
+	iowrite32(data, denali->host + DENALI_HOST_DATA);
 }
 
 /*
@@ -418,7 +83,7 @@ static void find_valid_banks(struct denali_nand_info *denali)
  */
 static void detect_max_banks(struct denali_nand_info *denali)
 {
-	uint32_t features = ioread32(denali->flash_reg + FEATURES);
+	uint32_t features = ioread32(denali->reg + FEATURES);
 
 	denali->max_banks = 1 << (features & FEATURES__N_BANKS);
 
@@ -427,227 +92,120 @@ static void detect_max_banks(struct denali_nand_info *denali)
 		denali->max_banks <<= 1;
 }
 
-static uint16_t denali_nand_timing_set(struct denali_nand_info *denali)
+static void denali_enable_irq(struct denali_nand_info *denali)
 {
-	uint16_t status = PASS;
-	uint32_t id_bytes[8], addr;
-	uint8_t maf_id, device_id;
 	int i;
 
-	/*
-	 * Use read id method to get device ID and other params.
-	 * For some NAND chips, controller can't report the correct
-	 * device ID by reading from DEVICE_ID register
-	 */
-	addr = MODE_11 | BANK(denali->flash_bank);
-	index_addr(denali, addr | 0, 0x90);
-	index_addr(denali, addr | 1, 0);
-	for (i = 0; i < 8; i++)
-		index_addr_read_data(denali, addr | 2, &id_bytes[i]);
-	maf_id = id_bytes[0];
-	device_id = id_bytes[1];
-
-	if (ioread32(denali->flash_reg + ONFI_DEVICE_NO_OF_LUNS) &
-		ONFI_DEVICE_NO_OF_LUNS__ONFI_DEVICE) { /* ONFI 1.0 NAND */
-		if (FAIL == get_onfi_nand_para(denali))
-			return FAIL;
-	} else if (maf_id == 0xEC) { /* Samsung NAND */
-		get_samsung_nand_para(denali, device_id);
-	} else if (maf_id == 0x98) { /* Toshiba NAND */
-		get_toshiba_nand_para(denali);
-	} else if (maf_id == 0xAD) { /* Hynix NAND */
-		get_hynix_nand_para(denali, device_id);
-	}
-
-	dev_info(denali->dev,
-			"Dump timing register values:\n"
-			"acc_clks: %d, re_2_we: %d, re_2_re: %d\n"
-			"we_2_re: %d, addr_2_data: %d, rdwr_en_lo_cnt: %d\n"
-			"rdwr_en_hi_cnt: %d, cs_setup_cnt: %d\n",
-			ioread32(denali->flash_reg + ACC_CLKS),
-			ioread32(denali->flash_reg + RE_2_WE),
-			ioread32(denali->flash_reg + RE_2_RE),
-			ioread32(denali->flash_reg + WE_2_RE),
-			ioread32(denali->flash_reg + ADDR_2_DATA),
-			ioread32(denali->flash_reg + RDWR_EN_LO_CNT),
-			ioread32(denali->flash_reg + RDWR_EN_HI_CNT),
-			ioread32(denali->flash_reg + CS_SETUP_CNT));
-
-	find_valid_banks(denali);
-
-	/*
-	 * If the user specified to override the default timings
-	 * with a specific ONFI mode, we apply those changes here.
-	 */
-	if (onfi_timing_mode != NAND_DEFAULT_TIMINGS)
-		nand_onfi_timing_set(denali, onfi_timing_mode);
-
-	return status;
+	for (i = 0; i < DENALI_NR_BANKS; i++)
+		iowrite32(U32_MAX, denali->reg + INTR_EN(i));
+	iowrite32(GLOBAL_INT_EN_FLAG, denali->reg + GLOBAL_INT_ENABLE);
 }
 
-static void denali_set_intr_modes(struct denali_nand_info *denali,
-					uint16_t INT_ENABLE)
+static void denali_disable_irq(struct denali_nand_info *denali)
 {
-	if (INT_ENABLE)
-		iowrite32(1, denali->flash_reg + GLOBAL_INT_ENABLE);
-	else
-		iowrite32(0, denali->flash_reg + GLOBAL_INT_ENABLE);
-}
-
-/*
- * validation function to verify that the controlling software is making
- * a valid request
- */
-static inline bool is_flash_bank_valid(int flash_bank)
-{
-	return flash_bank >= 0 && flash_bank < 4;
-}
-
-static void denali_irq_init(struct denali_nand_info *denali)
-{
-	uint32_t int_mask;
 	int i;
 
-	/* Disable global interrupts */
-	denali_set_intr_modes(denali, false);
-
-	int_mask = DENALI_IRQ_ALL;
-
-	/* Clear all status bits */
-	for (i = 0; i < denali->max_banks; ++i)
-		iowrite32(0xFFFF, denali->flash_reg + INTR_STATUS(i));
-
-	denali_irq_enable(denali, int_mask);
+	for (i = 0; i < DENALI_NR_BANKS; i++)
+		iowrite32(0, denali->reg + INTR_EN(i));
+	iowrite32(0, denali->reg + GLOBAL_INT_ENABLE);
 }
 
-static void denali_irq_cleanup(int irqnum, struct denali_nand_info *denali)
+static void denali_clear_irq(struct denali_nand_info *denali,
+			     int bank, uint32_t irq_status)
 {
-	denali_set_intr_modes(denali, false);
+	/* write one to clear bits */
+	iowrite32(irq_status, denali->reg + INTR_STATUS(bank));
 }
 
-static void denali_irq_enable(struct denali_nand_info *denali,
-							uint32_t int_mask)
+static void denali_clear_irq_all(struct denali_nand_info *denali)
 {
 	int i;
 
-	for (i = 0; i < denali->max_banks; ++i)
-		iowrite32(int_mask, denali->flash_reg + INTR_EN(i));
+	for (i = 0; i < DENALI_NR_BANKS; i++)
+		denali_clear_irq(denali, i, U32_MAX);
 }
 
-/*
- * This function only returns when an interrupt that this driver cares about
- * occurs. This is to reduce the overhead of servicing interrupts
- */
-static inline uint32_t denali_irq_detected(struct denali_nand_info *denali)
+static irqreturn_t denali_isr(int irq, void *dev_id)
 {
-	return read_interrupt_status(denali) & DENALI_IRQ_ALL;
-}
+	struct denali_nand_info *denali = dev_id;
+	irqreturn_t ret = IRQ_NONE;
+	uint32_t irq_status;
+	int i;
 
-/* Interrupts are cleared by writing a 1 to the appropriate status bit */
-static inline void clear_interrupt(struct denali_nand_info *denali,
-							uint32_t irq_mask)
-{
-	uint32_t intr_status_reg;
+	spin_lock(&denali->irq_lock);
 
-	intr_status_reg = INTR_STATUS(denali->flash_bank);
+	for (i = 0; i < DENALI_NR_BANKS; i++) {
+		irq_status = ioread32(denali->reg + INTR_STATUS(i));
+		if (irq_status)
+			ret = IRQ_HANDLED;
 
-	iowrite32(irq_mask, denali->flash_reg + intr_status_reg);
-}
+		denali_clear_irq(denali, i, irq_status);
 
-static void clear_interrupts(struct denali_nand_info *denali)
-{
-	uint32_t status;
+		if (i != denali->active_bank)
+			continue;
 
-	spin_lock_irq(&denali->irq_lock);
+		denali->irq_status |= irq_status;
 
-	status = read_interrupt_status(denali);
-	clear_interrupt(denali, status);
+		if (denali->irq_status & denali->irq_mask)
+			complete(&denali->complete);
+	}
+
+	spin_unlock(&denali->irq_lock);
 
-	denali->irq_status = 0x0;
-	spin_unlock_irq(&denali->irq_lock);
+	return ret;
 }
 
-static uint32_t read_interrupt_status(struct denali_nand_info *denali)
+static void denali_reset_irq(struct denali_nand_info *denali)
 {
-	uint32_t intr_status_reg;
-
-	intr_status_reg = INTR_STATUS(denali->flash_bank);
+	unsigned long flags;
 
-	return ioread32(denali->flash_reg + intr_status_reg);
+	spin_lock_irqsave(&denali->irq_lock, flags);
+	denali->irq_status = 0;
+	denali->irq_mask = 0;
+	spin_unlock_irqrestore(&denali->irq_lock, flags);
 }
 
-/*
- * This is the interrupt service routine. It handles all interrupts
- * sent to this device. Note that on CE4100, this is a shared interrupt.
- */
-static irqreturn_t denali_isr(int irq, void *dev_id)
+static uint32_t denali_wait_for_irq(struct denali_nand_info *denali,
+				    uint32_t irq_mask)
 {
-	struct denali_nand_info *denali = dev_id;
+	unsigned long time_left, flags;
 	uint32_t irq_status;
-	irqreturn_t result = IRQ_NONE;
 
-	spin_lock(&denali->irq_lock);
+	spin_lock_irqsave(&denali->irq_lock, flags);
 
-	/* check to see if a valid NAND chip has been selected. */
-	if (is_flash_bank_valid(denali->flash_bank)) {
-		/*
-		 * check to see if controller generated the interrupt,
-		 * since this is a shared interrupt
-		 */
-		irq_status = denali_irq_detected(denali);
-		if (irq_status != 0) {
-			/* handle interrupt */
-			/* first acknowledge it */
-			clear_interrupt(denali, irq_status);
-			/*
-			 * store the status in the device context for someone
-			 * to read
-			 */
-			denali->irq_status |= irq_status;
-			/* notify anyone who cares that it happened */
-			complete(&denali->complete);
-			/* tell the OS that we've handled this */
-			result = IRQ_HANDLED;
-		}
+	irq_status = denali->irq_status;
+
+	if (irq_mask & irq_status) {
+		/* return immediately if the IRQ has already happened. */
+		spin_unlock_irqrestore(&denali->irq_lock, flags);
+		return irq_status;
 	}
-	spin_unlock(&denali->irq_lock);
-	return result;
-}
 
-static uint32_t wait_for_irq(struct denali_nand_info *denali, uint32_t irq_mask)
-{
-	unsigned long comp_res;
-	uint32_t intr_status;
-	unsigned long timeout = msecs_to_jiffies(1000);
+	denali->irq_mask = irq_mask;
+	reinit_completion(&denali->complete);
+	spin_unlock_irqrestore(&denali->irq_lock, flags);
 
-	do {
-		comp_res =
-			wait_for_completion_timeout(&denali->complete, timeout);
-		spin_lock_irq(&denali->irq_lock);
-		intr_status = denali->irq_status;
-
-		if (intr_status & irq_mask) {
-			denali->irq_status &= ~irq_mask;
-			spin_unlock_irq(&denali->irq_lock);
-			/* our interrupt was detected */
-			break;
-		}
+	time_left = wait_for_completion_timeout(&denali->complete,
+						msecs_to_jiffies(1000));
+	if (!time_left) {
+		dev_err(denali->dev, "timeout while waiting for irq 0x%x\n",
+			denali->irq_mask);
+		return 0;
+	}
 
-		/*
-		 * these are not the interrupts you are looking for -
-		 * need to wait again
-		 */
-		spin_unlock_irq(&denali->irq_lock);
-	} while (comp_res != 0);
+	return denali->irq_status;
+}
+
+static uint32_t denali_check_irq(struct denali_nand_info *denali)
+{
+	unsigned long flags;
+	uint32_t irq_status;
 
-	if (comp_res == 0) {
-		/* timeout */
-		pr_err("timeout occurred, status = 0x%x, mask = 0x%x\n",
-				intr_status, irq_mask);
+	spin_lock_irqsave(&denali->irq_lock, flags);
+	irq_status = denali->irq_status;
+	spin_unlock_irqrestore(&denali->irq_lock, flags);
 
-		intr_status = 0;
-	}
-	return intr_status;
+	return irq_status;
 }
 
 /*
@@ -664,153 +222,111 @@ static void setup_ecc_for_xfer(struct denali_nand_info *denali, bool ecc_en,
 	transfer_spare_flag = transfer_spare ? TRANSFER_SPARE_REG__FLAG : 0;
 
 	/* Enable spare area/ECC per user's request. */
-	iowrite32(ecc_en_flag, denali->flash_reg + ECC_ENABLE);
-	iowrite32(transfer_spare_flag, denali->flash_reg + TRANSFER_SPARE_REG);
+	iowrite32(ecc_en_flag, denali->reg + ECC_ENABLE);
+	iowrite32(transfer_spare_flag, denali->reg + TRANSFER_SPARE_REG);
 }
 
-/*
- * sends a pipeline command operation to the controller. See the Denali NAND
- * controller's user guide for more information (section 4.2.3.6).
- */
-static int denali_send_pipeline_cmd(struct denali_nand_info *denali,
-				    bool ecc_en, bool transfer_spare,
-				    int access_type, int op)
+static void denali_read_buf(struct mtd_info *mtd, uint8_t *buf, int len)
 {
-	int status = PASS;
-	uint32_t addr, cmd;
-
-	setup_ecc_for_xfer(denali, ecc_en, transfer_spare);
+	struct denali_nand_info *denali = mtd_to_denali(mtd);
+	int i;
 
-	clear_interrupts(denali);
+	iowrite32(DENALI_MAP11_DATA | DENALI_BANK(denali),
+		  denali->host + DENALI_HOST_ADDR);
 
-	addr = BANK(denali->flash_bank) | denali->page;
+	for (i = 0; i < len; i++)
+		buf[i] = ioread32(denali->host + DENALI_HOST_DATA);
+}
 
-	if (op == DENALI_WRITE && access_type != SPARE_ACCESS) {
-		cmd = MODE_01 | addr;
-		iowrite32(cmd, denali->flash_mem);
-	} else if (op == DENALI_WRITE && access_type == SPARE_ACCESS) {
-		/* read spare area */
-		cmd = MODE_10 | addr;
-		index_addr(denali, cmd, access_type);
+static void denali_write_buf(struct mtd_info *mtd, const uint8_t *buf, int len)
+{
+	struct denali_nand_info *denali = mtd_to_denali(mtd);
+	int i;
 
-		cmd = MODE_01 | addr;
-		iowrite32(cmd, denali->flash_mem);
-	} else if (op == DENALI_READ) {
-		/* setup page read request for access type */
-		cmd = MODE_10 | addr;
-		index_addr(denali, cmd, access_type);
+	iowrite32(DENALI_MAP11_DATA | DENALI_BANK(denali),
+		  denali->host + DENALI_HOST_ADDR);
 
-		cmd = MODE_01 | addr;
-		iowrite32(cmd, denali->flash_mem);
-	}
-	return status;
+	for (i = 0; i < len; i++)
+		iowrite32(buf[i], denali->host + DENALI_HOST_DATA);
 }
 
-/* helper function that simply writes a buffer to the flash */
-static int write_data_to_flash_mem(struct denali_nand_info *denali,
-				   const uint8_t *buf, int len)
+static void denali_read_buf16(struct mtd_info *mtd, uint8_t *buf, int len)
 {
-	uint32_t *buf32;
+	struct denali_nand_info *denali = mtd_to_denali(mtd);
+	uint16_t *buf16 = (uint16_t *)buf;
 	int i;
 
-	/*
-	 * verify that the len is a multiple of 4.
-	 * see comment in read_data_from_flash_mem()
-	 */
-	BUG_ON((len % 4) != 0);
+	iowrite32(DENALI_MAP11_DATA | DENALI_BANK(denali),
+		  denali->host + DENALI_HOST_ADDR);
 
-	/* write the data to the flash memory */
-	buf32 = (uint32_t *)buf;
-	for (i = 0; i < len / 4; i++)
-		iowrite32(*buf32++, denali->flash_mem + 0x10);
-	return i * 4; /* intent is to return the number of bytes read */
+	for (i = 0; i < len / 2; i++)
+		buf16[i] = ioread32(denali->host + DENALI_HOST_DATA);
 }
 
-/* helper function that simply reads a buffer from the flash */
-static int read_data_from_flash_mem(struct denali_nand_info *denali,
-				    uint8_t *buf, int len)
+static void denali_write_buf16(struct mtd_info *mtd, const uint8_t *buf,
+			       int len)
 {
-	uint32_t *buf32;
+	struct denali_nand_info *denali = mtd_to_denali(mtd);
+	const uint16_t *buf16 = (const uint16_t *)buf;
 	int i;
 
-	/*
-	 * we assume that len will be a multiple of 4, if not it would be nice
-	 * to know about it ASAP rather than have random failures...
-	 * This assumption is based on the fact that this function is designed
-	 * to be used to read flash pages, which are typically multiples of 4.
-	 */
-	BUG_ON((len % 4) != 0);
+	iowrite32(DENALI_MAP11_DATA | DENALI_BANK(denali),
+		  denali->host + DENALI_HOST_ADDR);
 
-	/* transfer the data from the flash */
-	buf32 = (uint32_t *)buf;
-	for (i = 0; i < len / 4; i++)
-		*buf32++ = ioread32(denali->flash_mem + 0x10);
-	return i * 4; /* intent is to return the number of bytes read */
+	for (i = 0; i < len / 2; i++)
+		iowrite32(buf16[i], denali->host + DENALI_HOST_DATA);
 }
 
-/* writes OOB data to the device */
-static int write_oob_data(struct mtd_info *mtd, uint8_t *buf, int page)
+static uint8_t denali_read_byte(struct mtd_info *mtd)
 {
-	struct denali_nand_info *denali = mtd_to_denali(mtd);
-	uint32_t irq_status;
-	uint32_t irq_mask = INTR__PROGRAM_COMP | INTR__PROGRAM_FAIL;
-	int status = 0;
+	uint8_t byte;
 
-	denali->page = page;
+	denali_read_buf(mtd, &byte, 1);
 
-	if (denali_send_pipeline_cmd(denali, false, false, SPARE_ACCESS,
-							DENALI_WRITE) == PASS) {
-		write_data_to_flash_mem(denali, buf, mtd->oobsize);
+	return byte;
+}
 
-		/* wait for operation to complete */
-		irq_status = wait_for_irq(denali, irq_mask);
+static void denali_write_byte(struct mtd_info *mtd, uint8_t byte)
+{
+	denali_write_buf(mtd, &byte, 1);
+}
 
-		if (irq_status == 0) {
-			dev_err(denali->dev, "OOB write failed\n");
-			status = -EIO;
-		}
-	} else {
-		dev_err(denali->dev, "unable to send pipeline command\n");
-		status = -EIO;
-	}
-	return status;
+static uint16_t denali_read_word(struct mtd_info *mtd)
+{
+	uint16_t word;
+
+	denali_read_buf16(mtd, (uint8_t *)&word, 2);
+
+	return word;
 }
 
-/* reads OOB data from the device */
-static void read_oob_data(struct mtd_info *mtd, uint8_t *buf, int page)
+static void denali_cmd_ctrl(struct mtd_info *mtd, int dat, unsigned int ctrl)
 {
 	struct denali_nand_info *denali = mtd_to_denali(mtd);
-	uint32_t irq_mask = INTR__LOAD_COMP;
-	uint32_t irq_status, addr, cmd;
+	uint32_t type;
 
-	denali->page = page;
+	if (ctrl & NAND_CLE)
+		type = DENALI_MAP11_CMD;
+	else if (ctrl & NAND_ALE)
+		type = DENALI_MAP11_ADDR;
+	else
+		return;
 
-	if (denali_send_pipeline_cmd(denali, false, true, SPARE_ACCESS,
-							DENALI_READ) == PASS) {
-		read_data_from_flash_mem(denali, buf, mtd->oobsize);
+	/*
+	 * Some commands are followed by chip->dev_ready or chip->waitfunc.
+	 * irq_status must be cleared here to catch the R/B# interrupt later.
+	 */
+	if (ctrl & NAND_CTRL_CHANGE)
+		denali_reset_irq(denali);
 
-		/*
-		 * wait for command to be accepted
-		 * can always use status0 bit as the
-		 * mask is identical for each bank.
-		 */
-		irq_status = wait_for_irq(denali, irq_mask);
+	denali_host_write(denali, DENALI_BANK(denali) | type, dat);
+}
 
-		if (irq_status == 0)
-			dev_err(denali->dev, "page on OOB timeout %d\n",
-					denali->page);
+static int denali_dev_ready(struct mtd_info *mtd)
+{
+	struct denali_nand_info *denali = mtd_to_denali(mtd);
 
-		/*
-		 * We set the device back to MAIN_ACCESS here as I observed
-		 * instability with the controller if you do a block erase
-		 * and the last transaction was a SPARE_ACCESS. Block erase
-		 * is reliable (according to the MTD test infrastructure)
-		 * if you are in MAIN_ACCESS.
-		 */
-		addr = BANK(denali->flash_bank) | denali->page;
-		cmd = MODE_10 | addr;
-		index_addr(denali, cmd, MAIN_ACCESS);
-	}
+	return !!(denali_check_irq(denali) & INTR__INT_ACT);
 }
 
 static int denali_check_erased_page(struct mtd_info *mtd,
@@ -856,11 +372,11 @@ static int denali_hw_ecc_fixup(struct mtd_info *mtd,
 			       unsigned long *uncor_ecc_flags)
 {
 	struct nand_chip *chip = mtd_to_nand(mtd);
-	int bank = denali->flash_bank;
+	int bank = denali->active_bank;
 	uint32_t ecc_cor;
 	unsigned int max_bitflips;
 
-	ecc_cor = ioread32(denali->flash_reg + ECC_COR_INFO(bank));
+	ecc_cor = ioread32(denali->reg + ECC_COR_INFO(bank));
 	ecc_cor >>= ECC_COR_INFO__SHIFT(bank);
 
 	if (ecc_cor & ECC_COR_INFO__UNCOR_ERR) {
@@ -886,8 +402,6 @@ static int denali_hw_ecc_fixup(struct mtd_info *mtd,
 	return max_bitflips;
 }
 
-#define ECC_SECTOR_SIZE 512
-
 #define ECC_SECTOR(x)	(((x) & ECC_ERROR_ADDRESS__SECTOR_NR) >> 12)
 #define ECC_BYTE(x)	(((x) & ECC_ERROR_ADDRESS__OFFSET))
 #define ECC_CORRECTION_VALUE(x) ((x) & ERR_CORRECTION_INFO__BYTEMASK)
@@ -899,22 +413,23 @@ static int denali_sw_ecc_fixup(struct mtd_info *mtd,
 			       struct denali_nand_info *denali,
 			       unsigned long *uncor_ecc_flags, uint8_t *buf)
 {
+	unsigned int ecc_size = denali->nand.ecc.size;
 	unsigned int bitflips = 0;
 	unsigned int max_bitflips = 0;
 	uint32_t err_addr, err_cor_info;
 	unsigned int err_byte, err_sector, err_device;
 	uint8_t err_cor_value;
 	unsigned int prev_sector = 0;
+	uint32_t irq_status;
 
-	/* read the ECC errors. we'll ignore them for now */
-	denali_set_intr_modes(denali, false);
+	denali_reset_irq(denali);
 
 	do {
-		err_addr = ioread32(denali->flash_reg + ECC_ERROR_ADDRESS);
+		err_addr = ioread32(denali->reg + ECC_ERROR_ADDRESS);
 		err_sector = ECC_SECTOR(err_addr);
 		err_byte = ECC_BYTE(err_addr);
 
-		err_cor_info = ioread32(denali->flash_reg + ERR_CORRECTION_INFO);
+		err_cor_info = ioread32(denali->reg + ERR_CORRECTION_INFO);
 		err_cor_value = ECC_CORRECTION_VALUE(err_cor_info);
 		err_device = ECC_ERR_DEVICE(err_cor_info);
 
@@ -928,9 +443,9 @@ static int denali_sw_ecc_fixup(struct mtd_info *mtd,
 			 * an erased sector.
 			 */
 			*uncor_ecc_flags |= BIT(err_sector);
-		} else if (err_byte < ECC_SECTOR_SIZE) {
+		} else if (err_byte < ecc_size) {
 			/*
-			 * If err_byte is larger than ECC_SECTOR_SIZE, means error
+			 * If err_byte is larger than ecc_size, means error
 			 * happened in OOB, so we ignore it. It's no need for
 			 * us to correct it err_device is represented the NAND
 			 * error bits are happened in if there are more than
@@ -939,8 +454,8 @@ static int denali_sw_ecc_fixup(struct mtd_info *mtd,
 			int offset;
 			unsigned int flips_in_byte;
 
-			offset = (err_sector * ECC_SECTOR_SIZE + err_byte) *
-						denali->devnum + err_device;
+			offset = (err_sector * ecc_size + err_byte) *
+					denali->devs_per_cs + err_device;
 
 			/* correct the ECC error */
 			flips_in_byte = hweight8(buf[offset] ^ err_cor_value);
@@ -959,10 +474,9 @@ static int denali_sw_ecc_fixup(struct mtd_info *mtd,
 	 * ECC_TRANSACTION_DONE interrupt, so here just wait for
 	 * a while for this interrupt
 	 */
-	while (!(read_interrupt_status(denali) & INTR__ECC_TRANSACTION_DONE))
-		cpu_relax();
-	clear_interrupts(denali);
-	denali_set_intr_modes(denali, true);
+	irq_status = denali_wait_for_irq(denali, INTR__ECC_TRANSACTION_DONE);
+	if (!(irq_status & INTR__ECC_TRANSACTION_DONE))
+		return -EIO;
 
 	return max_bitflips;
 }
@@ -970,17 +484,17 @@ static int denali_sw_ecc_fixup(struct mtd_info *mtd,
 /* programs the controller to either enable/disable DMA transfers */
 static void denali_enable_dma(struct denali_nand_info *denali, bool en)
 {
-	iowrite32(en ? DMA_ENABLE__FLAG : 0, denali->flash_reg + DMA_ENABLE);
-	ioread32(denali->flash_reg + DMA_ENABLE);
+	iowrite32(en ? DMA_ENABLE__FLAG : 0, denali->reg + DMA_ENABLE);
+	ioread32(denali->reg + DMA_ENABLE);
 }
 
-static void denali_setup_dma64(struct denali_nand_info *denali, int op)
+static void denali_setup_dma64(struct denali_nand_info *denali,
+			       dma_addr_t dma_addr, int page, int write)
 {
 	uint32_t mode;
 	const int page_count = 1;
-	uint64_t addr = denali->buf.dma_buf;
 
-	mode = MODE_10 | BANK(denali->flash_bank) | denali->page;
+	mode = DENALI_MAP10 | DENALI_BANK(denali) | page;
 
 	/* DMA is a three step process */
 
@@ -988,191 +502,354 @@ static void denali_setup_dma64(struct denali_nand_info *denali, int op)
 	 * 1. setup transfer type, interrupt when complete,
 	 *    burst len = 64 bytes, the number of pages
 	 */
-	index_addr(denali, mode, 0x01002000 | (64 << 16) | op | page_count);
+	denali_host_write(denali, mode,
+			  0x01002000 | (64 << 16) | (write << 8) | page_count);
 
 	/* 2. set memory low address */
-	index_addr(denali, mode, addr);
+	denali_host_write(denali, mode, dma_addr);
 
 	/* 3. set memory high address */
-	index_addr(denali, mode, addr >> 32);
+	denali_host_write(denali, mode, (uint64_t)dma_addr >> 32);
 }
 
-static void denali_setup_dma32(struct denali_nand_info *denali, int op)
+static void denali_setup_dma32(struct denali_nand_info *denali,
+			       dma_addr_t dma_addr, int page, int write)
 {
 	uint32_t mode;
 	const int page_count = 1;
-	uint32_t addr = denali->buf.dma_buf;
 
-	mode = MODE_10 | BANK(denali->flash_bank);
+	mode = DENALI_MAP10 | DENALI_BANK(denali);
 
 	/* DMA is a four step process */
 
 	/* 1. setup transfer type and # of pages */
-	index_addr(denali, mode | denali->page, 0x2000 | op | page_count);
+	denali_host_write(denali, mode | page,
+			  0x2000 | (write << 8) | page_count);
 
 	/* 2. set memory high address bits 23:8 */
-	index_addr(denali, mode | ((addr >> 16) << 8), 0x2200);
+	denali_host_write(denali, mode | ((dma_addr >> 16) << 8), 0x2200);
 
 	/* 3. set memory low address bits 23:8 */
-	index_addr(denali, mode | ((addr & 0xffff) << 8), 0x2300);
+	denali_host_write(denali, mode | ((dma_addr & 0xffff) << 8), 0x2300);
 
 	/* 4. interrupt when complete, burst len = 64 bytes */
-	index_addr(denali, mode | 0x14000, 0x2400);
+	denali_host_write(denali, mode | 0x14000, 0x2400);
 }
 
-static void denali_setup_dma(struct denali_nand_info *denali, int op)
+static void denali_setup_dma(struct denali_nand_info *denali,
+			     dma_addr_t dma_addr, int page, int write)
 {
 	if (denali->caps & DENALI_CAP_DMA_64BIT)
-		denali_setup_dma64(denali, op);
+		denali_setup_dma64(denali, dma_addr, page, write);
 	else
-		denali_setup_dma32(denali, op);
+		denali_setup_dma32(denali, dma_addr, page, write);
 }
 
-/*
- * writes a page. user specifies type, and this function handles the
- * configuration details.
- */
-static int write_page(struct mtd_info *mtd, struct nand_chip *chip,
-			const uint8_t *buf, bool raw_xfer)
+static int denali_pio_read(struct denali_nand_info *denali, void *buf,
+			   size_t size, int page, int raw)
 {
-	struct denali_nand_info *denali = mtd_to_denali(mtd);
-	dma_addr_t addr = denali->buf.dma_buf;
-	size_t size = mtd->writesize + mtd->oobsize;
+	uint32_t addr = DENALI_BANK(denali) | page;
+	uint32_t *buf32 = (uint32_t *)buf;
+	uint32_t irq_status, ecc_err_mask;
+	int i;
+
+	if (denali->caps & DENALI_CAP_HW_ECC_FIXUP)
+		ecc_err_mask = INTR__ECC_UNCOR_ERR;
+	else
+		ecc_err_mask = INTR__ECC_ERR;
+
+	denali_reset_irq(denali);
+
+	iowrite32(DENALI_MAP01 | addr, denali->host + DENALI_HOST_ADDR);
+	for (i = 0; i < size / 4; i++)
+		*buf32++ = ioread32(denali->host + DENALI_HOST_DATA);
+
+	irq_status = denali_wait_for_irq(denali, INTR__PAGE_XFER_INC);
+	if (!(irq_status & INTR__PAGE_XFER_INC))
+		return -EIO;
+
+	if (irq_status & INTR__ERASED_PAGE)
+		memset(buf, 0xff, size);
+
+	return irq_status & ecc_err_mask ? -EBADMSG : 0;
+}
+
+static int denali_pio_write(struct denali_nand_info *denali,
+			    const void *buf, size_t size, int page, int raw)
+{
+	uint32_t addr = DENALI_BANK(denali) | page;
+	const uint32_t *buf32 = (uint32_t *)buf;
 	uint32_t irq_status;
-	uint32_t irq_mask = INTR__DMA_CMD_COMP | INTR__PROGRAM_FAIL;
+	int i;
 
-	/*
-	 * if it is a raw xfer, we want to disable ecc and send the spare area.
-	 * !raw_xfer - enable ecc
-	 * raw_xfer - transfer spare
-	 */
-	setup_ecc_for_xfer(denali, !raw_xfer, raw_xfer);
+	denali_reset_irq(denali);
 
-	/* copy buffer into DMA buffer */
-	memcpy(denali->buf.buf, buf, mtd->writesize);
+	iowrite32(DENALI_MAP01 | addr, denali->host + DENALI_HOST_ADDR);
+	for (i = 0; i < size / 4; i++)
+		iowrite32(*buf32++, denali->host + DENALI_HOST_DATA);
 
-	if (raw_xfer) {
-		/* transfer the data to the spare area */
-		memcpy(denali->buf.buf + mtd->writesize,
-			chip->oob_poi,
-			mtd->oobsize);
+	irq_status = denali_wait_for_irq(denali,
+				INTR__PROGRAM_COMP | INTR__PROGRAM_FAIL);
+	if (!(irq_status & INTR__PROGRAM_COMP))
+		return -EIO;
+
+	return 0;
+}
+
+static int denali_pio_xfer(struct denali_nand_info *denali, void *buf,
+			   size_t size, int page, int raw, int write)
+{
+	if (write)
+		return denali_pio_write(denali, buf, size, page, raw);
+	else
+		return denali_pio_read(denali, buf, size, page, raw);
+}
+
+static int denali_dma_xfer(struct denali_nand_info *denali, void *buf,
+			   size_t size, int page, int raw, int write)
+{
+	dma_addr_t dma_addr;
+	uint32_t irq_mask, irq_status, ecc_err_mask;
+	enum dma_data_direction dir = write ? DMA_TO_DEVICE : DMA_FROM_DEVICE;
+	int ret = 0;
+
+	dma_addr = dma_map_single(denali->dev, buf, size, dir);
+	if (dma_mapping_error(denali->dev, dma_addr)) {
+		dev_dbg(denali->dev, "Failed to DMA-map buffer. Trying PIO.\n");
+		return denali_pio_xfer(denali, buf, size, page, raw, write);
 	}
 
-	dma_sync_single_for_device(denali->dev, addr, size, DMA_TO_DEVICE);
+	if (write) {
+		/*
+		 * INTR__PROGRAM_COMP is never asserted for the DMA transfer.
+		 * We can use INTR__DMA_CMD_COMP instead.  This flag is asserted
+		 * when the page program is completed.
+		 */
+		irq_mask = INTR__DMA_CMD_COMP | INTR__PROGRAM_FAIL;
+		ecc_err_mask = 0;
+	} else if (denali->caps & DENALI_CAP_HW_ECC_FIXUP) {
+		irq_mask = INTR__DMA_CMD_COMP;
+		ecc_err_mask = INTR__ECC_UNCOR_ERR;
+	} else {
+		irq_mask = INTR__DMA_CMD_COMP;
+		ecc_err_mask = INTR__ECC_ERR;
+	}
 
-	clear_interrupts(denali);
 	denali_enable_dma(denali, true);
 
-	denali_setup_dma(denali, DENALI_WRITE);
+	denali_reset_irq(denali);
+	denali_setup_dma(denali, dma_addr, page, write);
 
 	/* wait for operation to complete */
-	irq_status = wait_for_irq(denali, irq_mask);
-
-	if (irq_status == 0) {
-		dev_err(denali->dev, "timeout on write_page (type = %d)\n",
-			raw_xfer);
-		denali->status = NAND_STATUS_FAIL;
-	}
+	irq_status = denali_wait_for_irq(denali, irq_mask);
+	if (!(irq_status & INTR__DMA_CMD_COMP))
+		ret = -EIO;
+	else if (irq_status & ecc_err_mask)
+		ret = -EBADMSG;
 
 	denali_enable_dma(denali, false);
-	dma_sync_single_for_cpu(denali->dev, addr, size, DMA_TO_DEVICE);
+	dma_unmap_single(denali->dev, dma_addr, size, dir);
 
-	return 0;
-}
+	if (irq_status & INTR__ERASED_PAGE)
+		memset(buf, 0xff, size);
 
-/* NAND core entry points */
+	return ret;
+}
 
-/*
- * this is the callback that the NAND core calls to write a page. Since
- * writing a page with ECC or without is similar, all the work is done
- * by write_page above.
- */
-static int denali_write_page(struct mtd_info *mtd, struct nand_chip *chip,
-				const uint8_t *buf, int oob_required, int page)
+static int denali_data_xfer(struct denali_nand_info *denali, void *buf,
+			    size_t size, int page, int raw, int write)
 {
-	/*
-	 * for regular page writes, we let HW handle all the ECC
-	 * data written to the device.
-	 */
-	return write_page(mtd, chip, buf, false);
+	setup_ecc_for_xfer(denali, !raw, raw);
+
+	if (denali->dma_avail)
+		return denali_dma_xfer(denali, buf, size, page, raw, write);
+	else
+		return denali_pio_xfer(denali, buf, size, page, raw, write);
 }
 
-/*
- * This is the callback that the NAND core calls to write a page without ECC.
- * raw access is similar to ECC page writes, so all the work is done in the
- * write_page() function above.
- */
-static int denali_write_page_raw(struct mtd_info *mtd, struct nand_chip *chip,
-				 const uint8_t *buf, int oob_required,
-				 int page)
+static void denali_oob_xfer(struct mtd_info *mtd, struct nand_chip *chip,
+			    int page, int write)
 {
-	/*
-	 * for raw page writes, we want to disable ECC and simply write
-	 * whatever data is in the buffer.
-	 */
-	return write_page(mtd, chip, buf, true);
+	struct denali_nand_info *denali = mtd_to_denali(mtd);
+	unsigned int start_cmd = write ? NAND_CMD_SEQIN : NAND_CMD_READ0;
+	unsigned int rnd_cmd = write ? NAND_CMD_RNDIN : NAND_CMD_RNDOUT;
+	int writesize = mtd->writesize;
+	int oobsize = mtd->oobsize;
+	uint8_t *bufpoi = chip->oob_poi;
+	int ecc_steps = chip->ecc.steps;
+	int ecc_size = chip->ecc.size;
+	int ecc_bytes = chip->ecc.bytes;
+	int oob_skip = denali->oob_skip_bytes;
+	size_t size = writesize + oobsize;
+	int i, pos, len;
+
+	/* BBM at the beginning of the OOB area */
+	chip->cmdfunc(mtd, start_cmd, writesize, page);
+	if (write)
+		chip->write_buf(mtd, bufpoi, oob_skip);
+	else
+		chip->read_buf(mtd, bufpoi, oob_skip);
+	bufpoi += oob_skip;
+
+	/* OOB ECC */
+	for (i = 0; i < ecc_steps; i++) {
+		pos = ecc_size + i * (ecc_size + ecc_bytes);
+		len = ecc_bytes;
+
+		if (pos >= writesize)
+			pos += oob_skip;
+		else if (pos + len > writesize)
+			len = writesize - pos;
+
+		chip->cmdfunc(mtd, rnd_cmd, pos, -1);
+		if (write)
+			chip->write_buf(mtd, bufpoi, len);
+		else
+			chip->read_buf(mtd, bufpoi, len);
+		bufpoi += len;
+		if (len < ecc_bytes) {
+			len = ecc_bytes - len;
+			chip->cmdfunc(mtd, rnd_cmd, writesize + oob_skip, -1);
+			if (write)
+				chip->write_buf(mtd, bufpoi, len);
+			else
+				chip->read_buf(mtd, bufpoi, len);
+			bufpoi += len;
+		}
+	}
+
+	/* OOB free */
+	len = oobsize - (bufpoi - chip->oob_poi);
+	chip->cmdfunc(mtd, rnd_cmd, size - len, -1);
+	if (write)
+		chip->write_buf(mtd, bufpoi, len);
+	else
+		chip->read_buf(mtd, bufpoi, len);
 }
 
-static int denali_write_oob(struct mtd_info *mtd, struct nand_chip *chip,
-			    int page)
+static int denali_read_page_raw(struct mtd_info *mtd, struct nand_chip *chip,
+				uint8_t *buf, int oob_required, int page)
 {
-	return write_oob_data(mtd, chip->oob_poi, page);
+	struct denali_nand_info *denali = mtd_to_denali(mtd);
+	int writesize = mtd->writesize;
+	int oobsize = mtd->oobsize;
+	int ecc_steps = chip->ecc.steps;
+	int ecc_size = chip->ecc.size;
+	int ecc_bytes = chip->ecc.bytes;
+	void *dma_buf = denali->buf;
+	int oob_skip = denali->oob_skip_bytes;
+	size_t size = writesize + oobsize;
+	int ret, i, pos, len;
+
+	ret = denali_data_xfer(denali, dma_buf, size, page, 1, 0);
+	if (ret)
+		return ret;
+
+	/* Arrange the buffer for syndrome payload/ecc layout */
+	if (buf) {
+		for (i = 0; i < ecc_steps; i++) {
+			pos = i * (ecc_size + ecc_bytes);
+			len = ecc_size;
+
+			if (pos >= writesize)
+				pos += oob_skip;
+			else if (pos + len > writesize)
+				len = writesize - pos;
+
+			memcpy(buf, dma_buf + pos, len);
+			buf += len;
+			if (len < ecc_size) {
+				len = ecc_size - len;
+				memcpy(buf, dma_buf + writesize + oob_skip,
+				       len);
+				buf += len;
+			}
+		}
+	}
+
+	if (oob_required) {
+		uint8_t *oob = chip->oob_poi;
+
+		/* BBM at the beginning of the OOB area */
+		memcpy(oob, dma_buf + writesize, oob_skip);
+		oob += oob_skip;
+
+		/* OOB ECC */
+		for (i = 0; i < ecc_steps; i++) {
+			pos = ecc_size + i * (ecc_size + ecc_bytes);
+			len = ecc_bytes;
+
+			if (pos >= writesize)
+				pos += oob_skip;
+			else if (pos + len > writesize)
+				len = writesize - pos;
+
+			memcpy(oob, dma_buf + pos, len);
+			oob += len;
+			if (len < ecc_bytes) {
+				len = ecc_bytes - len;
+				memcpy(oob, dma_buf + writesize + oob_skip,
+				       len);
+				oob += len;
+			}
+		}
+
+		/* OOB free */
+		len = oobsize - (oob - chip->oob_poi);
+		memcpy(oob, dma_buf + size - len, len);
+	}
+
+	return 0;
 }
 
 static int denali_read_oob(struct mtd_info *mtd, struct nand_chip *chip,
 			   int page)
 {
-	read_oob_data(mtd, chip->oob_poi, page);
+	denali_oob_xfer(mtd, chip, page, 0);
 
 	return 0;
 }
 
-static int denali_read_page(struct mtd_info *mtd, struct nand_chip *chip,
-			    uint8_t *buf, int oob_required, int page)
+static int denali_write_oob(struct mtd_info *mtd, struct nand_chip *chip,
+			    int page)
 {
 	struct denali_nand_info *denali = mtd_to_denali(mtd);
-	dma_addr_t addr = denali->buf.dma_buf;
-	size_t size = mtd->writesize + mtd->oobsize;
-	uint32_t irq_status;
-	uint32_t irq_mask = denali->caps & DENALI_CAP_HW_ECC_FIXUP ?
-				INTR__DMA_CMD_COMP | INTR__ECC_UNCOR_ERR :
-				INTR__ECC_TRANSACTION_DONE | INTR__ECC_ERR;
-	unsigned long uncor_ecc_flags = 0;
-	int stat = 0;
+	int status;
 
-	if (page != denali->page) {
-		dev_err(denali->dev,
-			"IN %s: page %d is not equal to denali->page %d",
-			__func__, page, denali->page);
-		BUG();
-	}
+	denali_reset_irq(denali);
 
-	setup_ecc_for_xfer(denali, true, false);
+	denali_oob_xfer(mtd, chip, page, 1);
 
-	denali_enable_dma(denali, true);
-	dma_sync_single_for_device(denali->dev, addr, size, DMA_FROM_DEVICE);
+	chip->cmdfunc(mtd, NAND_CMD_PAGEPROG, -1, -1);
+	status = chip->waitfunc(mtd, chip);
 
-	clear_interrupts(denali);
-	denali_setup_dma(denali, DENALI_READ);
-
-	/* wait for operation to complete */
-	irq_status = wait_for_irq(denali, irq_mask);
+	return status & NAND_STATUS_FAIL ? -EIO : 0;
+}
 
-	dma_sync_single_for_cpu(denali->dev, addr, size, DMA_FROM_DEVICE);
+static int denali_read_page(struct mtd_info *mtd, struct nand_chip *chip,
+			    uint8_t *buf, int oob_required, int page)
+{
+	struct denali_nand_info *denali = mtd_to_denali(mtd);
+	unsigned long uncor_ecc_flags = 0;
+	int stat = 0;
+	int ret;
 
-	memcpy(buf, denali->buf.buf, mtd->writesize);
+	ret = denali_data_xfer(denali, buf, mtd->writesize, page, 0, 0);
+	if (ret && ret != -EBADMSG)
+		return ret;
 
 	if (denali->caps & DENALI_CAP_HW_ECC_FIXUP)
 		stat = denali_hw_ecc_fixup(mtd, denali, &uncor_ecc_flags);
-	else if (irq_status & INTR__ECC_ERR)
+	else if (ret == -EBADMSG)
 		stat = denali_sw_ecc_fixup(mtd, denali, &uncor_ecc_flags, buf);
-	denali_enable_dma(denali, false);
 
 	if (stat < 0)
 		return stat;
 
 	if (uncor_ecc_flags) {
-		read_oob_data(mtd, chip->oob_poi, denali->page);
+		ret = denali_read_oob(mtd, chip, page);
+		if (ret)
+			return ret;
 
 		stat = denali_check_erased_page(mtd, chip, buf,
 						uncor_ecc_flags, stat);
@@ -1181,137 +858,266 @@ static int denali_read_page(struct mtd_info *mtd, struct nand_chip *chip,
 	return stat;
 }
 
-static int denali_read_page_raw(struct mtd_info *mtd, struct nand_chip *chip,
-				uint8_t *buf, int oob_required, int page)
+static int denali_write_page_raw(struct mtd_info *mtd, struct nand_chip *chip,
+				 const uint8_t *buf, int oob_required, int page)
 {
 	struct denali_nand_info *denali = mtd_to_denali(mtd);
-	dma_addr_t addr = denali->buf.dma_buf;
-	size_t size = mtd->writesize + mtd->oobsize;
-	uint32_t irq_mask = INTR__DMA_CMD_COMP;
-
-	if (page != denali->page) {
-		dev_err(denali->dev,
-			"IN %s: page %d is not equal to denali->page %d",
-			__func__, page, denali->page);
-		BUG();
-	}
-
-	setup_ecc_for_xfer(denali, false, true);
-	denali_enable_dma(denali, true);
-
-	dma_sync_single_for_device(denali->dev, addr, size, DMA_FROM_DEVICE);
-
-	clear_interrupts(denali);
-	denali_setup_dma(denali, DENALI_READ);
-
-	/* wait for operation to complete */
-	wait_for_irq(denali, irq_mask);
+	int writesize = mtd->writesize;
+	int oobsize = mtd->oobsize;
+	int ecc_steps = chip->ecc.steps;
+	int ecc_size = chip->ecc.size;
+	int ecc_bytes = chip->ecc.bytes;
+	void *dma_buf = denali->buf;
+	int oob_skip = denali->oob_skip_bytes;
+	size_t size = writesize + oobsize;
+	int i, pos, len;
 
-	dma_sync_single_for_cpu(denali->dev, addr, size, DMA_FROM_DEVICE);
+	/*
+	 * Fill the buffer with 0xff first except the full page transfer.
+	 * This simplifies the logic.
+	 */
+	if (!buf || !oob_required)
+		memset(dma_buf, 0xff, size);
+
+	/* Arrange the buffer for syndrome payload/ecc layout */
+	if (buf) {
+		for (i = 0; i < ecc_steps; i++) {
+			pos = i * (ecc_size + ecc_bytes);
+			len = ecc_size;
+
+			if (pos >= writesize)
+				pos += oob_skip;
+			else if (pos + len > writesize)
+				len = writesize - pos;
+
+			memcpy(dma_buf + pos, buf, len);
+			buf += len;
+			if (len < ecc_size) {
+				len = ecc_size - len;
+				memcpy(dma_buf + writesize + oob_skip, buf,
+				       len);
+				buf += len;
+			}
+		}
+	}
 
-	denali_enable_dma(denali, false);
+	if (oob_required) {
+		const uint8_t *oob = chip->oob_poi;
+
+		/* BBM at the beginning of the OOB area */
+		memcpy(dma_buf + writesize, oob, oob_skip);
+		oob += oob_skip;
+
+		/* OOB ECC */
+		for (i = 0; i < ecc_steps; i++) {
+			pos = ecc_size + i * (ecc_size + ecc_bytes);
+			len = ecc_bytes;
+
+			if (pos >= writesize)
+				pos += oob_skip;
+			else if (pos + len > writesize)
+				len = writesize - pos;
+
+			memcpy(dma_buf + pos, oob, len);
+			oob += len;
+			if (len < ecc_bytes) {
+				len = ecc_bytes - len;
+				memcpy(dma_buf + writesize + oob_skip, oob,
+				       len);
+				oob += len;
+			}
+		}
 
-	memcpy(buf, denali->buf.buf, mtd->writesize);
-	memcpy(chip->oob_poi, denali->buf.buf + mtd->writesize, mtd->oobsize);
+		/* OOB free */
+		len = oobsize - (oob - chip->oob_poi);
+		memcpy(dma_buf + size - len, oob, len);
+	}
 
-	return 0;
+	return denali_data_xfer(denali, dma_buf, size, page, 1, 1);
 }
 
-static uint8_t denali_read_byte(struct mtd_info *mtd)
+static int denali_write_page(struct mtd_info *mtd, struct nand_chip *chip,
+			     const uint8_t *buf, int oob_required, int page)
 {
 	struct denali_nand_info *denali = mtd_to_denali(mtd);
-	uint8_t result = 0xff;
-
-	if (denali->buf.head < denali->buf.tail)
-		result = denali->buf.buf[denali->buf.head++];
 
-	return result;
+	return denali_data_xfer(denali, (void *)buf, mtd->writesize,
+				page, 0, 1);
 }
 
 static void denali_select_chip(struct mtd_info *mtd, int chip)
 {
 	struct denali_nand_info *denali = mtd_to_denali(mtd);
 
-	spin_lock_irq(&denali->irq_lock);
-	denali->flash_bank = chip;
-	spin_unlock_irq(&denali->irq_lock);
+	denali->active_bank = chip;
 }
 
 static int denali_waitfunc(struct mtd_info *mtd, struct nand_chip *chip)
 {
 	struct denali_nand_info *denali = mtd_to_denali(mtd);
-	int status = denali->status;
+	uint32_t irq_status;
 
-	denali->status = 0;
+	/* R/B# pin transitioned from low to high? */
+	irq_status = denali_wait_for_irq(denali, INTR__INT_ACT);
 
-	return status;
+	return irq_status & INTR__INT_ACT ? 0 : NAND_STATUS_FAIL;
 }
 
 static int denali_erase(struct mtd_info *mtd, int page)
 {
 	struct denali_nand_info *denali = mtd_to_denali(mtd);
+	uint32_t irq_status;
 
-	uint32_t cmd, irq_status;
-
-	clear_interrupts(denali);
+	denali_reset_irq(denali);
 
-	/* setup page read request for access type */
-	cmd = MODE_10 | BANK(denali->flash_bank) | page;
-	index_addr(denali, cmd, 0x1);
+	denali_host_write(denali, DENALI_MAP10 | DENALI_BANK(denali) | page,
+			  DENALI_ERASE);
 
 	/* wait for erase to complete or failure to occur */
-	irq_status = wait_for_irq(denali, INTR__ERASE_COMP | INTR__ERASE_FAIL);
+	irq_status = denali_wait_for_irq(denali,
+					 INTR__ERASE_COMP | INTR__ERASE_FAIL);
 
-	return irq_status & INTR__ERASE_FAIL ? NAND_STATUS_FAIL : PASS;
+	return irq_status & INTR__ERASE_COMP ? 0 : NAND_STATUS_FAIL;
 }
 
-static void denali_cmdfunc(struct mtd_info *mtd, unsigned int cmd, int col,
-			   int page)
+#define DIV_ROUND_DOWN_ULL(ll, d) \
+	({ unsigned long long _tmp = (ll); do_div(_tmp, d); _tmp; })
+
+static int denali_setup_data_interface(struct mtd_info *mtd, int chipnr,
+				       const struct nand_data_interface *conf)
 {
 	struct denali_nand_info *denali = mtd_to_denali(mtd);
-	uint32_t addr, id;
+	const struct nand_sdr_timings *timings;
+	unsigned long t_clk;
+	int acc_clks, re_2_we, re_2_re, we_2_re, addr_2_data;
+	int rdwr_en_lo, rdwr_en_hi, rdwr_en_lo_hi, cs_setup;
+	int addr_2_data_mask;
+	uint32_t tmp;
+
+	timings = nand_get_sdr_timings(conf);
+	if (IS_ERR(timings))
+		return PTR_ERR(timings);
+
+	/* clk_x period in picoseconds */
+	t_clk = DIV_ROUND_DOWN_ULL(1000000000000ULL, denali->clk_x_rate);
+	if (!t_clk)
+		return -EINVAL;
+
+	if (chipnr == NAND_DATA_IFACE_CHECK_ONLY)
+		return 0;
+
+	/* tREA -> ACC_CLKS */
+	acc_clks = DIV_ROUND_UP(timings->tREA_max, t_clk);
+	acc_clks = min_t(int, acc_clks, ACC_CLKS__VALUE);
+
+	tmp = ioread32(denali->reg + ACC_CLKS);
+	tmp &= ~ACC_CLKS__VALUE;
+	tmp |= acc_clks;
+	iowrite32(tmp, denali->reg + ACC_CLKS);
+
+	/* tRWH -> RE_2_WE */
+	re_2_we = DIV_ROUND_UP(timings->tRHW_min, t_clk);
+	re_2_we = min_t(int, re_2_we, RE_2_WE__VALUE);
+
+	tmp = ioread32(denali->reg + RE_2_WE);
+	tmp &= ~RE_2_WE__VALUE;
+	tmp |= re_2_we;
+	iowrite32(tmp, denali->reg + RE_2_WE);
+
+	/* tRHZ -> RE_2_RE */
+	re_2_re = DIV_ROUND_UP(timings->tRHZ_max, t_clk);
+	re_2_re = min_t(int, re_2_re, RE_2_RE__VALUE);
+
+	tmp = ioread32(denali->reg + RE_2_RE);
+	tmp &= ~RE_2_RE__VALUE;
+	tmp |= re_2_re;
+	iowrite32(tmp, denali->reg + RE_2_RE);
+
+	/* tWHR -> WE_2_RE */
+	we_2_re = DIV_ROUND_UP(timings->tWHR_min, t_clk);
+	we_2_re = min_t(int, we_2_re, TWHR2_AND_WE_2_RE__WE_2_RE);
+
+	tmp = ioread32(denali->reg + TWHR2_AND_WE_2_RE);
+	tmp &= ~TWHR2_AND_WE_2_RE__WE_2_RE;
+	tmp |= we_2_re;
+	iowrite32(tmp, denali->reg + TWHR2_AND_WE_2_RE);
+
+	/* tADL -> ADDR_2_DATA */
+
+	/* for older versions, ADDR_2_DATA is only 6 bit wide */
+	addr_2_data_mask = TCWAW_AND_ADDR_2_DATA__ADDR_2_DATA;
+	if (denali->revision < 0x0501)
+		addr_2_data_mask >>= 1;
+
+	addr_2_data = DIV_ROUND_UP(timings->tADL_min, t_clk);
+	addr_2_data = min_t(int, addr_2_data, addr_2_data_mask);
+
+	tmp = ioread32(denali->reg + TCWAW_AND_ADDR_2_DATA);
+	tmp &= ~addr_2_data_mask;
+	tmp |= addr_2_data;
+	iowrite32(tmp, denali->reg + TCWAW_AND_ADDR_2_DATA);
+
+	/* tREH, tWH -> RDWR_EN_HI_CNT */
+	rdwr_en_hi = DIV_ROUND_UP(max(timings->tREH_min, timings->tWH_min),
+				  t_clk);
+	rdwr_en_hi = min_t(int, rdwr_en_hi, RDWR_EN_HI_CNT__VALUE);
+
+	tmp = ioread32(denali->reg + RDWR_EN_HI_CNT);
+	tmp &= ~RDWR_EN_HI_CNT__VALUE;
+	tmp |= rdwr_en_hi;
+	iowrite32(tmp, denali->reg + RDWR_EN_HI_CNT);
+
+	/* tRP, tWP -> RDWR_EN_LO_CNT */
+	rdwr_en_lo = DIV_ROUND_UP(max(timings->tRP_min, timings->tWP_min),
+				  t_clk);
+	rdwr_en_lo_hi = DIV_ROUND_UP(max(timings->tRC_min, timings->tWC_min),
+				     t_clk);
+	rdwr_en_lo_hi = max(rdwr_en_lo_hi, DENALI_CLK_X_MULT);
+	rdwr_en_lo = max(rdwr_en_lo, rdwr_en_lo_hi - rdwr_en_hi);
+	rdwr_en_lo = min_t(int, rdwr_en_lo, RDWR_EN_LO_CNT__VALUE);
+
+	tmp = ioread32(denali->reg + RDWR_EN_LO_CNT);
+	tmp &= ~RDWR_EN_LO_CNT__VALUE;
+	tmp |= rdwr_en_lo;
+	iowrite32(tmp, denali->reg + RDWR_EN_LO_CNT);
+
+	/* tCS, tCEA -> CS_SETUP_CNT */
+	cs_setup = max3((int)DIV_ROUND_UP(timings->tCS_min, t_clk) - rdwr_en_lo,
+			(int)DIV_ROUND_UP(timings->tCEA_max, t_clk) - acc_clks,
+			0);
+	cs_setup = min_t(int, cs_setup, CS_SETUP_CNT__VALUE);
+
+	tmp = ioread32(denali->reg + CS_SETUP_CNT);
+	tmp &= ~CS_SETUP_CNT__VALUE;
+	tmp |= cs_setup;
+	iowrite32(tmp, denali->reg + CS_SETUP_CNT);
+
+	return 0;
+}
+
+static void denali_reset_banks(struct denali_nand_info *denali)
+{
+	u32 irq_status;
 	int i;
 
-	switch (cmd) {
-	case NAND_CMD_PAGEPROG:
-		break;
-	case NAND_CMD_STATUS:
-		read_status(denali);
-		break;
-	case NAND_CMD_READID:
-	case NAND_CMD_PARAM:
-		reset_buf(denali);
-		/*
-		 * sometimes ManufactureId read from register is not right
-		 * e.g. some of Micron MT29F32G08QAA MLC NAND chips
-		 * So here we send READID cmd to NAND insteand
-		 */
-		addr = MODE_11 | BANK(denali->flash_bank);
-		index_addr(denali, addr | 0, 0x90);
-		index_addr(denali, addr | 1, col);
-		for (i = 0; i < 8; i++) {
-			index_addr_read_data(denali, addr | 2, &id);
-			write_byte_to_buf(denali, id);
-		}
-		break;
-	case NAND_CMD_READ0:
-	case NAND_CMD_SEQIN:
-		denali->page = page;
-		break;
-	case NAND_CMD_RESET:
-		reset_bank(denali);
-		break;
-	case NAND_CMD_READOOB:
-		/* TODO: Read OOB data */
-		break;
-	default:
-		pr_err(": unsupported command received 0x%x\n", cmd);
-		break;
+	for (i = 0; i < denali->max_banks; i++) {
+		denali->active_bank = i;
+
+		denali_reset_irq(denali);
+
+		iowrite32(DEVICE_RESET__BANK(i),
+			  denali->reg + DEVICE_RESET);
+
+		irq_status = denali_wait_for_irq(denali,
+			INTR__RST_COMP | INTR__INT_ACT | INTR__TIME_OUT);
+		if (!(irq_status & INTR__INT_ACT))
+			break;
 	}
+
+	dev_dbg(denali->dev, "%d chips connected\n", i);
+	denali->max_banks = i;
 }
-/* end NAND core entry points */
 
-/* Initialization code to bring the device up to a known good state */
 static void denali_hw_init(struct denali_nand_info *denali)
 {
 	/*
@@ -1319,8 +1125,7 @@ static void denali_hw_init(struct denali_nand_info *denali)
 	 * override it.
 	 */
 	if (!denali->revision)
-		denali->revision =
-				swab16(ioread32(denali->flash_reg + REVISION));
+		denali->revision = swab16(ioread32(denali->reg + REVISION));
 
 	/*
 	 * tell driver how many bit controller will skip before
@@ -1328,30 +1133,51 @@ static void denali_hw_init(struct denali_nand_info *denali)
 	 * set by firmware. So we read this value out.
 	 * if this value is 0, just let it be.
 	 */
-	denali->bbtskipbytes = ioread32(denali->flash_reg +
-						SPARE_AREA_SKIP_BYTES);
+	denali->oob_skip_bytes = ioread32(denali->reg + SPARE_AREA_SKIP_BYTES);
 	detect_max_banks(denali);
-	denali_nand_reset(denali);
-	iowrite32(0x0F, denali->flash_reg + RB_PIN_ENABLED);
-	iowrite32(CHIP_EN_DONT_CARE__FLAG,
-			denali->flash_reg + CHIP_ENABLE_DONT_CARE);
+	iowrite32(0x0F, denali->reg + RB_PIN_ENABLED);
+	iowrite32(CHIP_EN_DONT_CARE__FLAG, denali->reg + CHIP_ENABLE_DONT_CARE);
 
-	iowrite32(0xffff, denali->flash_reg + SPARE_AREA_MARKER);
+	iowrite32(0xffff, denali->reg + SPARE_AREA_MARKER);
 
 	/* Should set value for these registers when init */
-	iowrite32(0, denali->flash_reg + TWO_ROW_ADDR_CYCLES);
-	iowrite32(1, denali->flash_reg + ECC_ENABLE);
-	denali_nand_timing_set(denali);
-	denali_irq_init(denali);
+	iowrite32(0, denali->reg + TWO_ROW_ADDR_CYCLES);
+	iowrite32(1, denali->reg + ECC_ENABLE);
 }
 
-/*
- * Althogh controller spec said SLC ECC is forceb to be 4bit,
- * but denali controller in MRST only support 15bit and 8bit ECC
- * correction
- */
-#define ECC_8BITS	14
-#define ECC_15BITS	26
+int denali_calc_ecc_bytes(int step_size, int strength)
+{
+	/* BCH code.  Denali requires ecc.bytes to be multiple of 2 */
+	return DIV_ROUND_UP(strength * fls(step_size * 8), 16) * 2;
+}
+EXPORT_SYMBOL(denali_calc_ecc_bytes);
+
+static int denali_ecc_setup(struct mtd_info *mtd, struct nand_chip *chip,
+			    struct denali_nand_info *denali)
+{
+	int oobavail = mtd->oobsize - denali->oob_skip_bytes;
+	int ret;
+
+	/*
+	 * If .size and .strength are already set (usually by DT),
+	 * check if they are supported by this controller.
+	 */
+	if (chip->ecc.size && chip->ecc.strength)
+		return nand_check_ecc_caps(chip, denali->ecc_caps, oobavail);
+
+	/*
+	 * We want .size and .strength closest to the chip's requirement
+	 * unless NAND_ECC_MAXIMIZE is requested.
+	 */
+	if (!(chip->ecc.options & NAND_ECC_MAXIMIZE)) {
+		ret = nand_match_ecc_req(chip, denali->ecc_caps, oobavail);
+		if (!ret)
+			return 0;
+	}
+
+	/* Max ECC strength is the last thing we can do */
+	return nand_maximize_ecc(chip, denali->ecc_caps, oobavail);
+}
 
 static int denali_ooblayout_ecc(struct mtd_info *mtd, int section,
 				struct mtd_oob_region *oobregion)
@@ -1362,7 +1188,7 @@ static int denali_ooblayout_ecc(struct mtd_info *mtd, int section,
 	if (section)
 		return -ERANGE;
 
-	oobregion->offset = denali->bbtskipbytes;
+	oobregion->offset = denali->oob_skip_bytes;
 	oobregion->length = chip->ecc.total;
 
 	return 0;
@@ -1377,7 +1203,7 @@ static int denali_ooblayout_free(struct mtd_info *mtd, int section,
 	if (section)
 		return -ERANGE;
 
-	oobregion->offset = chip->ecc.total + denali->bbtskipbytes;
+	oobregion->offset = chip->ecc.total + denali->oob_skip_bytes;
 	oobregion->length = mtd->oobsize - oobregion->offset;
 
 	return 0;
@@ -1388,29 +1214,6 @@ static const struct mtd_ooblayout_ops denali_ooblayout_ops = {
 	.free = denali_ooblayout_free,
 };
 
-static uint8_t bbt_pattern[] = {'B', 'b', 't', '0' };
-static uint8_t mirror_pattern[] = {'1', 't', 'b', 'B' };
-
-static struct nand_bbt_descr bbt_main_descr = {
-	.options = NAND_BBT_LASTBLOCK | NAND_BBT_CREATE | NAND_BBT_WRITE
-		| NAND_BBT_2BIT | NAND_BBT_VERSION | NAND_BBT_PERCHIP,
-	.offs =	8,
-	.len = 4,
-	.veroffs = 12,
-	.maxblocks = 4,
-	.pattern = bbt_pattern,
-};
-
-static struct nand_bbt_descr bbt_mirror_descr = {
-	.options = NAND_BBT_LASTBLOCK | NAND_BBT_CREATE | NAND_BBT_WRITE
-		| NAND_BBT_2BIT | NAND_BBT_VERSION | NAND_BBT_PERCHIP,
-	.offs =	8,
-	.len = 4,
-	.veroffs = 12,
-	.maxblocks = 4,
-	.pattern = mirror_pattern,
-};
-
 /* initialize driver data structures */
 static void denali_drv_init(struct denali_nand_info *denali)
 {
@@ -1425,12 +1228,6 @@ static void denali_drv_init(struct denali_nand_info *denali)
 	 * element that might be access shared data (interrupt status)
 	 */
 	spin_lock_init(&denali->irq_lock);
-
-	/* indicate that MTD has not selected a valid bank yet */
-	denali->flash_bank = CHIP_SELECT_INVALID;
-
-	/* initialize our irq_status variable to indicate no interrupts */
-	denali->irq_status = 0;
 }
 
 static int denali_multidev_fixup(struct denali_nand_info *denali)
@@ -1445,23 +1242,23 @@ static int denali_multidev_fixup(struct denali_nand_info *denali)
 	 * In this case, the core framework knows nothing about this fact,
 	 * so we should tell it the _logical_ pagesize and anything necessary.
 	 */
-	denali->devnum = ioread32(denali->flash_reg + DEVICES_CONNECTED);
+	denali->devs_per_cs = ioread32(denali->reg + DEVICES_CONNECTED);
 
 	/*
 	 * On some SoCs, DEVICES_CONNECTED is not auto-detected.
 	 * For those, DEVICES_CONNECTED is left to 0.  Set 1 if it is the case.
 	 */
-	if (denali->devnum == 0) {
-		denali->devnum = 1;
-		iowrite32(1, denali->flash_reg + DEVICES_CONNECTED);
+	if (denali->devs_per_cs == 0) {
+		denali->devs_per_cs = 1;
+		iowrite32(1, denali->reg + DEVICES_CONNECTED);
 	}
 
-	if (denali->devnum == 1)
+	if (denali->devs_per_cs == 1)
 		return 0;
 
-	if (denali->devnum != 2) {
+	if (denali->devs_per_cs != 2) {
 		dev_err(denali->dev, "unsupported number of devices %d\n",
-			denali->devnum);
+			denali->devs_per_cs);
 		return -EINVAL;
 	}
 
@@ -1479,7 +1276,7 @@ static int denali_multidev_fixup(struct denali_nand_info *denali)
 	chip->ecc.size <<= 1;
 	chip->ecc.bytes <<= 1;
 	chip->ecc.strength <<= 1;
-	denali->bbtskipbytes <<= 1;
+	denali->oob_skip_bytes <<= 1;
 
 	return 0;
 }
@@ -1490,27 +1287,12 @@ int denali_init(struct denali_nand_info *denali)
 	struct mtd_info *mtd = nand_to_mtd(chip);
 	int ret;
 
-	if (denali->platform == INTEL_CE4100) {
-		/*
-		 * Due to a silicon limitation, we can only support
-		 * ONFI timing mode 1 and below.
-		 */
-		if (onfi_timing_mode < -1 || onfi_timing_mode > 1) {
-			pr_err("Intel CE4100 only supports ONFI timing mode 1 or below\n");
-			return -EINVAL;
-		}
-	}
-
-	/* allocate a temporary buffer for nand_scan_ident() */
-	denali->buf.buf = devm_kzalloc(denali->dev, PAGE_SIZE,
-					GFP_DMA | GFP_KERNEL);
-	if (!denali->buf.buf)
-		return -ENOMEM;
-
 	mtd->dev.parent = denali->dev;
 	denali_hw_init(denali);
 	denali_drv_init(denali);
 
+	denali_clear_irq_all(denali);
+
 	/* Request IRQ after all the hardware initialization is finished */
 	ret = devm_request_irq(denali->dev, denali->irq, denali_isr,
 			       IRQF_SHARED, DENALI_NAND_NAME, denali);
@@ -1519,8 +1301,11 @@ int denali_init(struct denali_nand_info *denali)
 		return ret;
 	}
 
-	/* now that our ISR is registered, we can enable interrupts */
-	denali_set_intr_modes(denali, true);
+	denali_enable_irq(denali);
+	denali_reset_banks(denali);
+
+	denali->active_bank = DENALI_INVALID_BANK;
+
 	nand_set_flash_node(chip, denali->dev->of_node);
 	/* Fallback to the default name if DT did not give "label" property */
 	if (!mtd->name)
@@ -1528,10 +1313,17 @@ int denali_init(struct denali_nand_info *denali)
 
 	/* register the driver with the NAND core subsystem */
 	chip->select_chip = denali_select_chip;
-	chip->cmdfunc = denali_cmdfunc;
 	chip->read_byte = denali_read_byte;
+	chip->write_byte = denali_write_byte;
+	chip->read_word = denali_read_word;
+	chip->cmd_ctrl = denali_cmd_ctrl;
+	chip->dev_ready = denali_dev_ready;
 	chip->waitfunc = denali_waitfunc;
 
+	/* clk rate info is needed for setup_data_interface */
+	if (denali->clk_x_rate)
+		chip->setup_data_interface = denali_setup_data_interface;
+
 	/*
 	 * scan for NAND devices attached to the controller
 	 * this is the first stage in a two step process to register
@@ -1539,33 +1331,25 @@ int denali_init(struct denali_nand_info *denali)
 	 */
 	ret = nand_scan_ident(mtd, denali->max_banks, NULL);
 	if (ret)
-		goto failed_req_irq;
-
-	/* allocate the right size buffer now */
-	devm_kfree(denali->dev, denali->buf.buf);
-	denali->buf.buf = devm_kzalloc(denali->dev,
-			     mtd->writesize + mtd->oobsize,
-			     GFP_KERNEL);
-	if (!denali->buf.buf) {
-		ret = -ENOMEM;
-		goto failed_req_irq;
-	}
+		goto disable_irq;
 
-	ret = dma_set_mask(denali->dev,
-			   DMA_BIT_MASK(denali->caps & DENALI_CAP_DMA_64BIT ?
-					64 : 32));
-	if (ret) {
-		dev_err(denali->dev, "No usable DMA configuration\n");
-		goto failed_req_irq;
+	if (ioread32(denali->reg + FEATURES) & FEATURES__DMA)
+		denali->dma_avail = 1;
+
+	if (denali->dma_avail) {
+		int dma_bit = denali->caps & DENALI_CAP_DMA_64BIT ? 64 : 32;
+
+		ret = dma_set_mask(denali->dev, DMA_BIT_MASK(dma_bit));
+		if (ret) {
+			dev_info(denali->dev,
+				 "Failed to set DMA mask. Disabling DMA.\n");
+			denali->dma_avail = 0;
+		}
 	}
 
-	denali->buf.dma_buf = dma_map_single(denali->dev, denali->buf.buf,
-			     mtd->writesize + mtd->oobsize,
-			     DMA_BIDIRECTIONAL);
-	if (dma_mapping_error(denali->dev, denali->buf.dma_buf)) {
-		dev_err(denali->dev, "Failed to map DMA buffer\n");
-		ret = -EIO;
-		goto failed_req_irq;
+	if (denali->dma_avail) {
+		chip->options |= NAND_USE_BOUNCE_BUFFER;
+		chip->buf_align = 16;
 	}
 
 	/*
@@ -1574,46 +1358,49 @@ int denali_init(struct denali_nand_info *denali)
 	 * bad block management.
 	 */
 
-	/* Bad block management */
-	chip->bbt_td = &bbt_main_descr;
-	chip->bbt_md = &bbt_mirror_descr;
-
-	/* skip the scan for now until we have OOB read and write support */
 	chip->bbt_options |= NAND_BBT_USE_FLASH;
-	chip->options |= NAND_SKIP_BBTSCAN;
+	chip->bbt_options |= NAND_BBT_NO_OOB;
+
 	chip->ecc.mode = NAND_ECC_HW_SYNDROME;
 
 	/* no subpage writes on denali */
 	chip->options |= NAND_NO_SUBPAGE_WRITE;
 
-	/*
-	 * Denali Controller only support 15bit and 8bit ECC in MRST,
-	 * so just let controller do 15bit ECC for MLC and 8bit ECC for
-	 * SLC if possible.
-	 * */
-	if (!nand_is_slc(chip) &&
-			(mtd->oobsize > (denali->bbtskipbytes +
-			ECC_15BITS * (mtd->writesize /
-			ECC_SECTOR_SIZE)))) {
-		/* if MLC OOB size is large enough, use 15bit ECC*/
-		chip->ecc.strength = 15;
-		chip->ecc.bytes = ECC_15BITS;
-		iowrite32(15, denali->flash_reg + ECC_CORRECTION);
-	} else if (mtd->oobsize < (denali->bbtskipbytes +
-			ECC_8BITS * (mtd->writesize /
-			ECC_SECTOR_SIZE))) {
-		pr_err("Your NAND chip OOB is not large enough to contain 8bit ECC correction codes");
-		goto failed_req_irq;
-	} else {
-		chip->ecc.strength = 8;
-		chip->ecc.bytes = ECC_8BITS;
-		iowrite32(8, denali->flash_reg + ECC_CORRECTION);
+	ret = denali_ecc_setup(mtd, chip, denali);
+	if (ret) {
+		dev_err(denali->dev, "Failed to setup ECC settings.\n");
+		goto disable_irq;
 	}
 
+	dev_dbg(denali->dev,
+		"chosen ECC settings: step=%d, strength=%d, bytes=%d\n",
+		chip->ecc.size, chip->ecc.strength, chip->ecc.bytes);
+
+	iowrite32(MAKE_ECC_CORRECTION(chip->ecc.strength, 1),
+		  denali->reg + ECC_CORRECTION);
+	iowrite32(mtd->erasesize / mtd->writesize,
+		  denali->reg + PAGES_PER_BLOCK);
+	iowrite32(chip->options & NAND_BUSWIDTH_16 ? 1 : 0,
+		  denali->reg + DEVICE_WIDTH);
+	iowrite32(mtd->writesize, denali->reg + DEVICE_MAIN_AREA_SIZE);
+	iowrite32(mtd->oobsize, denali->reg + DEVICE_SPARE_AREA_SIZE);
+
+	iowrite32(chip->ecc.size, denali->reg + CFG_DATA_BLOCK_SIZE);
+	iowrite32(chip->ecc.size, denali->reg + CFG_LAST_DATA_BLOCK_SIZE);
+	/* chip->ecc.steps is set by nand_scan_tail(); not available here */
+	iowrite32(mtd->writesize / chip->ecc.size,
+		  denali->reg + CFG_NUM_DATA_BLOCKS);
+
 	mtd_set_ooblayout(mtd, &denali_ooblayout_ops);
 
-	/* override the default read operations */
-	chip->ecc.size = ECC_SECTOR_SIZE;
+	if (chip->options & NAND_BUSWIDTH_16) {
+		chip->read_buf = denali_read_buf16;
+		chip->write_buf = denali_write_buf16;
+	} else {
+		chip->read_buf = denali_read_buf;
+		chip->write_buf = denali_write_buf;
+	}
+	chip->ecc.options |= NAND_ECC_CUSTOM_PAGE_ACCESS;
 	chip->ecc.read_page = denali_read_page;
 	chip->ecc.read_page_raw = denali_read_page_raw;
 	chip->ecc.write_page = denali_write_page;
@@ -1624,21 +1411,34 @@ int denali_init(struct denali_nand_info *denali)
 
 	ret = denali_multidev_fixup(denali);
 	if (ret)
-		goto failed_req_irq;
+		goto disable_irq;
+
+	/*
+	 * This buffer is DMA-mapped by denali_{read,write}_page_raw.  Do not
+	 * use devm_kmalloc() because the memory allocated by devm_ does not
+	 * guarantee DMA-safe alignment.
+	 */
+	denali->buf = kmalloc(mtd->writesize + mtd->oobsize, GFP_KERNEL);
+	if (!denali->buf) {
+		ret = -ENOMEM;
+		goto disable_irq;
+	}
 
 	ret = nand_scan_tail(mtd);
 	if (ret)
-		goto failed_req_irq;
+		goto free_buf;
 
 	ret = mtd_device_register(mtd, NULL, 0);
 	if (ret) {
 		dev_err(denali->dev, "Failed to register MTD: %d\n", ret);
-		goto failed_req_irq;
+		goto free_buf;
 	}
 	return 0;
 
-failed_req_irq:
-	denali_irq_cleanup(denali->irq, denali);
+free_buf:
+	kfree(denali->buf);
+disable_irq:
+	denali_disable_irq(denali);
 
 	return ret;
 }
@@ -1648,16 +1448,9 @@ EXPORT_SYMBOL(denali_init);
 void denali_remove(struct denali_nand_info *denali)
 {
 	struct mtd_info *mtd = nand_to_mtd(&denali->nand);
-	/*
-	 * Pre-compute DMA buffer size to avoid any problems in case
-	 * nand_release() ever changes in a way that mtd->writesize and
-	 * mtd->oobsize are not reliable after this call.
-	 */
-	int bufsize = mtd->writesize + mtd->oobsize;
 
 	nand_release(mtd);
-	denali_irq_cleanup(denali->irq, denali);
-	dma_unmap_single(denali->dev, denali->buf.dma_buf, bufsize,
-			 DMA_BIDIRECTIONAL);
+	kfree(denali->buf);
+	denali_disable_irq(denali);
 }
 EXPORT_SYMBOL(denali_remove);
diff --git a/drivers/mtd/nand/denali.h b/drivers/mtd/nand/denali.h
index ec004850652a..237cc706b0fb 100644
--- a/drivers/mtd/nand/denali.h
+++ b/drivers/mtd/nand/denali.h
@@ -24,330 +24,315 @@
 #include <linux/mtd/nand.h>
 
 #define DEVICE_RESET				0x0
-#define     DEVICE_RESET__BANK0				0x0001
-#define     DEVICE_RESET__BANK1				0x0002
-#define     DEVICE_RESET__BANK2				0x0004
-#define     DEVICE_RESET__BANK3				0x0008
+#define     DEVICE_RESET__BANK(bank)			BIT(bank)
 
 #define TRANSFER_SPARE_REG			0x10
-#define     TRANSFER_SPARE_REG__FLAG			0x0001
+#define     TRANSFER_SPARE_REG__FLAG			BIT(0)
 
 #define LOAD_WAIT_CNT				0x20
-#define     LOAD_WAIT_CNT__VALUE			0xffff
+#define     LOAD_WAIT_CNT__VALUE			GENMASK(15, 0)
 
 #define PROGRAM_WAIT_CNT			0x30
-#define     PROGRAM_WAIT_CNT__VALUE			0xffff
+#define     PROGRAM_WAIT_CNT__VALUE			GENMASK(15, 0)
 
 #define ERASE_WAIT_CNT				0x40
-#define     ERASE_WAIT_CNT__VALUE			0xffff
+#define     ERASE_WAIT_CNT__VALUE			GENMASK(15, 0)
 
 #define INT_MON_CYCCNT				0x50
-#define     INT_MON_CYCCNT__VALUE			0xffff
+#define     INT_MON_CYCCNT__VALUE			GENMASK(15, 0)
 
 #define RB_PIN_ENABLED				0x60
-#define     RB_PIN_ENABLED__BANK0			0x0001
-#define     RB_PIN_ENABLED__BANK1			0x0002
-#define     RB_PIN_ENABLED__BANK2			0x0004
-#define     RB_PIN_ENABLED__BANK3			0x0008
+#define     RB_PIN_ENABLED__BANK(bank)			BIT(bank)
 
 #define MULTIPLANE_OPERATION			0x70
-#define     MULTIPLANE_OPERATION__FLAG			0x0001
+#define     MULTIPLANE_OPERATION__FLAG			BIT(0)
 
 #define MULTIPLANE_READ_ENABLE			0x80
-#define     MULTIPLANE_READ_ENABLE__FLAG		0x0001
+#define     MULTIPLANE_READ_ENABLE__FLAG		BIT(0)
 
 #define COPYBACK_DISABLE			0x90
-#define     COPYBACK_DISABLE__FLAG			0x0001
+#define     COPYBACK_DISABLE__FLAG			BIT(0)
 
 #define CACHE_WRITE_ENABLE			0xa0
-#define     CACHE_WRITE_ENABLE__FLAG			0x0001
+#define     CACHE_WRITE_ENABLE__FLAG			BIT(0)
 
 #define CACHE_READ_ENABLE			0xb0
-#define     CACHE_READ_ENABLE__FLAG			0x0001
+#define     CACHE_READ_ENABLE__FLAG			BIT(0)
 
 #define PREFETCH_MODE				0xc0
-#define     PREFETCH_MODE__PREFETCH_EN			0x0001
-#define     PREFETCH_MODE__PREFETCH_BURST_LENGTH	0xfff0
+#define     PREFETCH_MODE__PREFETCH_EN			BIT(0)
+#define     PREFETCH_MODE__PREFETCH_BURST_LENGTH	GENMASK(15, 4)
 
 #define CHIP_ENABLE_DONT_CARE			0xd0
-#define     CHIP_EN_DONT_CARE__FLAG			0x01
+#define     CHIP_EN_DONT_CARE__FLAG			BIT(0)
 
 #define ECC_ENABLE				0xe0
-#define     ECC_ENABLE__FLAG				0x0001
+#define     ECC_ENABLE__FLAG				BIT(0)
 
 #define GLOBAL_INT_ENABLE			0xf0
-#define     GLOBAL_INT_EN_FLAG				0x01
+#define     GLOBAL_INT_EN_FLAG				BIT(0)
 
-#define WE_2_RE					0x100
-#define     WE_2_RE__VALUE				0x003f
+#define TWHR2_AND_WE_2_RE			0x100
+#define     TWHR2_AND_WE_2_RE__WE_2_RE			GENMASK(5, 0)
+#define     TWHR2_AND_WE_2_RE__TWHR2			GENMASK(13, 8)
 
-#define ADDR_2_DATA				0x110
-#define     ADDR_2_DATA__VALUE				0x003f
+#define TCWAW_AND_ADDR_2_DATA			0x110
+/* The width of ADDR_2_DATA is 6 bit for old IP, 7 bit for new IP */
+#define     TCWAW_AND_ADDR_2_DATA__ADDR_2_DATA		GENMASK(6, 0)
+#define     TCWAW_AND_ADDR_2_DATA__TCWAW		GENMASK(13, 8)
 
 #define RE_2_WE					0x120
-#define     RE_2_WE__VALUE				0x003f
+#define     RE_2_WE__VALUE				GENMASK(5, 0)
 
 #define ACC_CLKS				0x130
-#define     ACC_CLKS__VALUE				0x000f
+#define     ACC_CLKS__VALUE				GENMASK(3, 0)
 
 #define NUMBER_OF_PLANES			0x140
-#define     NUMBER_OF_PLANES__VALUE			0x0007
+#define     NUMBER_OF_PLANES__VALUE			GENMASK(2, 0)
 
 #define PAGES_PER_BLOCK				0x150
-#define     PAGES_PER_BLOCK__VALUE			0xffff
+#define     PAGES_PER_BLOCK__VALUE			GENMASK(15, 0)
 
 #define DEVICE_WIDTH				0x160
-#define     DEVICE_WIDTH__VALUE				0x0003
+#define     DEVICE_WIDTH__VALUE				GENMASK(1, 0)
 
 #define DEVICE_MAIN_AREA_SIZE			0x170
-#define     DEVICE_MAIN_AREA_SIZE__VALUE		0xffff
+#define     DEVICE_MAIN_AREA_SIZE__VALUE		GENMASK(15, 0)
 
 #define DEVICE_SPARE_AREA_SIZE			0x180
-#define     DEVICE_SPARE_AREA_SIZE__VALUE		0xffff
+#define     DEVICE_SPARE_AREA_SIZE__VALUE		GENMASK(15, 0)
 
 #define TWO_ROW_ADDR_CYCLES			0x190
-#define     TWO_ROW_ADDR_CYCLES__FLAG			0x0001
+#define     TWO_ROW_ADDR_CYCLES__FLAG			BIT(0)
 
 #define MULTIPLANE_ADDR_RESTRICT		0x1a0
-#define     MULTIPLANE_ADDR_RESTRICT__FLAG		0x0001
+#define     MULTIPLANE_ADDR_RESTRICT__FLAG		BIT(0)
 
 #define ECC_CORRECTION				0x1b0
-#define     ECC_CORRECTION__VALUE			0x001f
+#define     ECC_CORRECTION__VALUE			GENMASK(4, 0)
+#define     ECC_CORRECTION__ERASE_THRESHOLD		GENMASK(31, 16)
+#define     MAKE_ECC_CORRECTION(val, thresh)		\
+			(((val) & (ECC_CORRECTION__VALUE)) | \
+			(((thresh) << 16) & (ECC_CORRECTION__ERASE_THRESHOLD)))
 
 #define READ_MODE				0x1c0
-#define     READ_MODE__VALUE				0x000f
+#define     READ_MODE__VALUE				GENMASK(3, 0)
 
 #define WRITE_MODE				0x1d0
-#define     WRITE_MODE__VALUE				0x000f
+#define     WRITE_MODE__VALUE				GENMASK(3, 0)
 
 #define COPYBACK_MODE				0x1e0
-#define     COPYBACK_MODE__VALUE			0x000f
+#define     COPYBACK_MODE__VALUE			GENMASK(3, 0)
 
 #define RDWR_EN_LO_CNT				0x1f0
-#define     RDWR_EN_LO_CNT__VALUE			0x001f
+#define     RDWR_EN_LO_CNT__VALUE			GENMASK(4, 0)
 
 #define RDWR_EN_HI_CNT				0x200
-#define     RDWR_EN_HI_CNT__VALUE			0x001f
+#define     RDWR_EN_HI_CNT__VALUE			GENMASK(4, 0)
 
 #define MAX_RD_DELAY				0x210
-#define     MAX_RD_DELAY__VALUE				0x000f
+#define     MAX_RD_DELAY__VALUE				GENMASK(3, 0)
 
 #define CS_SETUP_CNT				0x220
-#define     CS_SETUP_CNT__VALUE				0x001f
+#define     CS_SETUP_CNT__VALUE				GENMASK(4, 0)
+#define     CS_SETUP_CNT__TWB				GENMASK(17, 12)
 
 #define SPARE_AREA_SKIP_BYTES			0x230
-#define     SPARE_AREA_SKIP_BYTES__VALUE		0x003f
+#define     SPARE_AREA_SKIP_BYTES__VALUE		GENMASK(5, 0)
 
 #define SPARE_AREA_MARKER			0x240
-#define     SPARE_AREA_MARKER__VALUE			0xffff
+#define     SPARE_AREA_MARKER__VALUE			GENMASK(15, 0)
 
 #define DEVICES_CONNECTED			0x250
-#define     DEVICES_CONNECTED__VALUE			0x0007
+#define     DEVICES_CONNECTED__VALUE			GENMASK(2, 0)
 
 #define DIE_MASK				0x260
-#define     DIE_MASK__VALUE				0x00ff
+#define     DIE_MASK__VALUE				GENMASK(7, 0)
 
 #define FIRST_BLOCK_OF_NEXT_PLANE		0x270
-#define     FIRST_BLOCK_OF_NEXT_PLANE__VALUE		0xffff
+#define     FIRST_BLOCK_OF_NEXT_PLANE__VALUE		GENMASK(15, 0)
 
 #define WRITE_PROTECT				0x280
-#define     WRITE_PROTECT__FLAG				0x0001
+#define     WRITE_PROTECT__FLAG				BIT(0)
 
 #define RE_2_RE					0x290
-#define     RE_2_RE__VALUE				0x003f
+#define     RE_2_RE__VALUE				GENMASK(5, 0)
 
 #define MANUFACTURER_ID				0x300
-#define     MANUFACTURER_ID__VALUE			0x00ff
+#define     MANUFACTURER_ID__VALUE			GENMASK(7, 0)
 
 #define DEVICE_ID				0x310
-#define     DEVICE_ID__VALUE				0x00ff
+#define     DEVICE_ID__VALUE				GENMASK(7, 0)
 
 #define DEVICE_PARAM_0				0x320
-#define     DEVICE_PARAM_0__VALUE			0x00ff
+#define     DEVICE_PARAM_0__VALUE			GENMASK(7, 0)
 
 #define DEVICE_PARAM_1				0x330
-#define     DEVICE_PARAM_1__VALUE			0x00ff
+#define     DEVICE_PARAM_1__VALUE			GENMASK(7, 0)
 
 #define DEVICE_PARAM_2				0x340
-#define     DEVICE_PARAM_2__VALUE			0x00ff
+#define     DEVICE_PARAM_2__VALUE			GENMASK(7, 0)
 
 #define LOGICAL_PAGE_DATA_SIZE			0x350
-#define     LOGICAL_PAGE_DATA_SIZE__VALUE		0xffff
+#define     LOGICAL_PAGE_DATA_SIZE__VALUE		GENMASK(15, 0)
 
 #define LOGICAL_PAGE_SPARE_SIZE			0x360
-#define     LOGICAL_PAGE_SPARE_SIZE__VALUE		0xffff
+#define     LOGICAL_PAGE_SPARE_SIZE__VALUE		GENMASK(15, 0)
 
 #define REVISION				0x370
-#define     REVISION__VALUE				0xffff
+#define     REVISION__VALUE				GENMASK(15, 0)
 
 #define ONFI_DEVICE_FEATURES			0x380
-#define     ONFI_DEVICE_FEATURES__VALUE			0x003f
+#define     ONFI_DEVICE_FEATURES__VALUE			GENMASK(5, 0)
 
 #define ONFI_OPTIONAL_COMMANDS			0x390
-#define     ONFI_OPTIONAL_COMMANDS__VALUE		0x003f
+#define     ONFI_OPTIONAL_COMMANDS__VALUE		GENMASK(5, 0)
 
 #define ONFI_TIMING_MODE			0x3a0
-#define     ONFI_TIMING_MODE__VALUE			0x003f
+#define     ONFI_TIMING_MODE__VALUE			GENMASK(5, 0)
 
 #define ONFI_PGM_CACHE_TIMING_MODE		0x3b0
-#define     ONFI_PGM_CACHE_TIMING_MODE__VALUE		0x003f
+#define     ONFI_PGM_CACHE_TIMING_MODE__VALUE		GENMASK(5, 0)
 
 #define ONFI_DEVICE_NO_OF_LUNS			0x3c0
-#define     ONFI_DEVICE_NO_OF_LUNS__NO_OF_LUNS		0x00ff
-#define     ONFI_DEVICE_NO_OF_LUNS__ONFI_DEVICE		0x0100
+#define     ONFI_DEVICE_NO_OF_LUNS__NO_OF_LUNS		GENMASK(7, 0)
+#define     ONFI_DEVICE_NO_OF_LUNS__ONFI_DEVICE		BIT(8)
 
 #define ONFI_DEVICE_NO_OF_BLOCKS_PER_LUN_L	0x3d0
-#define     ONFI_DEVICE_NO_OF_BLOCKS_PER_LUN_L__VALUE	0xffff
+#define     ONFI_DEVICE_NO_OF_BLOCKS_PER_LUN_L__VALUE	GENMASK(15, 0)
 
 #define ONFI_DEVICE_NO_OF_BLOCKS_PER_LUN_U	0x3e0
-#define     ONFI_DEVICE_NO_OF_BLOCKS_PER_LUN_U__VALUE	0xffff
-
-#define FEATURES					0x3f0
-#define     FEATURES__N_BANKS				0x0003
-#define     FEATURES__ECC_MAX_ERR			0x003c
-#define     FEATURES__DMA				0x0040
-#define     FEATURES__CMD_DMA				0x0080
-#define     FEATURES__PARTITION				0x0100
-#define     FEATURES__XDMA_SIDEBAND			0x0200
-#define     FEATURES__GPREG				0x0400
-#define     FEATURES__INDEX_ADDR			0x0800
+#define     ONFI_DEVICE_NO_OF_BLOCKS_PER_LUN_U__VALUE	GENMASK(15, 0)
+
+#define FEATURES				0x3f0
+#define     FEATURES__N_BANKS				GENMASK(1, 0)
+#define     FEATURES__ECC_MAX_ERR			GENMASK(5, 2)
+#define     FEATURES__DMA				BIT(6)
+#define     FEATURES__CMD_DMA				BIT(7)
+#define     FEATURES__PARTITION				BIT(8)
+#define     FEATURES__XDMA_SIDEBAND			BIT(9)
+#define     FEATURES__GPREG				BIT(10)
+#define     FEATURES__INDEX_ADDR			BIT(11)
 
 #define TRANSFER_MODE				0x400
-#define     TRANSFER_MODE__VALUE			0x0003
+#define     TRANSFER_MODE__VALUE			GENMASK(1, 0)
 
-#define INTR_STATUS(__bank)	(0x410 + ((__bank) * 0x50))
-#define INTR_EN(__bank)		(0x420 + ((__bank) * 0x50))
+#define INTR_STATUS(bank)			(0x410 + (bank) * 0x50)
+#define INTR_EN(bank)				(0x420 + (bank) * 0x50)
 /* bit[1:0] is used differently depending on IP version */
-#define     INTR__ECC_UNCOR_ERR				0x0001	/* new IP */
-#define     INTR__ECC_TRANSACTION_DONE			0x0001	/* old IP */
-#define     INTR__ECC_ERR				0x0002	/* old IP */
-#define     INTR__DMA_CMD_COMP				0x0004
-#define     INTR__TIME_OUT				0x0008
-#define     INTR__PROGRAM_FAIL				0x0010
-#define     INTR__ERASE_FAIL				0x0020
-#define     INTR__LOAD_COMP				0x0040
-#define     INTR__PROGRAM_COMP				0x0080
-#define     INTR__ERASE_COMP				0x0100
-#define     INTR__PIPE_CPYBCK_CMD_COMP			0x0200
-#define     INTR__LOCKED_BLK				0x0400
-#define     INTR__UNSUP_CMD				0x0800
-#define     INTR__INT_ACT				0x1000
-#define     INTR__RST_COMP				0x2000
-#define     INTR__PIPE_CMD_ERR				0x4000
-#define     INTR__PAGE_XFER_INC				0x8000
-
-#define PAGE_CNT(__bank)	(0x430 + ((__bank) * 0x50))
-#define ERR_PAGE_ADDR(__bank)	(0x440 + ((__bank) * 0x50))
-#define ERR_BLOCK_ADDR(__bank)	(0x450 + ((__bank) * 0x50))
+#define     INTR__ECC_UNCOR_ERR				BIT(0)	/* new IP */
+#define     INTR__ECC_TRANSACTION_DONE			BIT(0)	/* old IP */
+#define     INTR__ECC_ERR				BIT(1)	/* old IP */
+#define     INTR__DMA_CMD_COMP				BIT(2)
+#define     INTR__TIME_OUT				BIT(3)
+#define     INTR__PROGRAM_FAIL				BIT(4)
+#define     INTR__ERASE_FAIL				BIT(5)
+#define     INTR__LOAD_COMP				BIT(6)
+#define     INTR__PROGRAM_COMP				BIT(7)
+#define     INTR__ERASE_COMP				BIT(8)
+#define     INTR__PIPE_CPYBCK_CMD_COMP			BIT(9)
+#define     INTR__LOCKED_BLK				BIT(10)
+#define     INTR__UNSUP_CMD				BIT(11)
+#define     INTR__INT_ACT				BIT(12)
+#define     INTR__RST_COMP				BIT(13)
+#define     INTR__PIPE_CMD_ERR				BIT(14)
+#define     INTR__PAGE_XFER_INC				BIT(15)
+#define     INTR__ERASED_PAGE				BIT(16)
+
+#define PAGE_CNT(bank)				(0x430 + (bank) * 0x50)
+#define ERR_PAGE_ADDR(bank)			(0x440 + (bank) * 0x50)
+#define ERR_BLOCK_ADDR(bank)			(0x450 + (bank) * 0x50)
 
 #define ECC_THRESHOLD				0x600
-#define     ECC_THRESHOLD__VALUE			0x03ff
+#define     ECC_THRESHOLD__VALUE			GENMASK(9, 0)
 
 #define ECC_ERROR_BLOCK_ADDRESS			0x610
-#define     ECC_ERROR_BLOCK_ADDRESS__VALUE		0xffff
+#define     ECC_ERROR_BLOCK_ADDRESS__VALUE		GENMASK(15, 0)
 
 #define ECC_ERROR_PAGE_ADDRESS			0x620
-#define     ECC_ERROR_PAGE_ADDRESS__VALUE		0x0fff
-#define     ECC_ERROR_PAGE_ADDRESS__BANK		0xf000
+#define     ECC_ERROR_PAGE_ADDRESS__VALUE		GENMASK(11, 0)
+#define     ECC_ERROR_PAGE_ADDRESS__BANK		GENMASK(15, 12)
 
 #define ECC_ERROR_ADDRESS			0x630
-#define     ECC_ERROR_ADDRESS__OFFSET			0x0fff
-#define     ECC_ERROR_ADDRESS__SECTOR_NR		0xf000
+#define     ECC_ERROR_ADDRESS__OFFSET			GENMASK(11, 0)
+#define     ECC_ERROR_ADDRESS__SECTOR_NR		GENMASK(15, 12)
 
 #define ERR_CORRECTION_INFO			0x640
-#define     ERR_CORRECTION_INFO__BYTEMASK		0x00ff
-#define     ERR_CORRECTION_INFO__DEVICE_NR		0x0f00
-#define     ERR_CORRECTION_INFO__ERROR_TYPE		0x4000
-#define     ERR_CORRECTION_INFO__LAST_ERR_INFO		0x8000
+#define     ERR_CORRECTION_INFO__BYTEMASK		GENMASK(7, 0)
+#define     ERR_CORRECTION_INFO__DEVICE_NR		GENMASK(11, 8)
+#define     ERR_CORRECTION_INFO__ERROR_TYPE		BIT(14)
+#define     ERR_CORRECTION_INFO__LAST_ERR_INFO		BIT(15)
 
 #define ECC_COR_INFO(bank)			(0x650 + (bank) / 2 * 0x10)
 #define     ECC_COR_INFO__SHIFT(bank)			((bank) % 2 * 8)
-#define     ECC_COR_INFO__MAX_ERRORS			0x007f
-#define     ECC_COR_INFO__UNCOR_ERR			0x0080
+#define     ECC_COR_INFO__MAX_ERRORS			GENMASK(6, 0)
+#define     ECC_COR_INFO__UNCOR_ERR			BIT(7)
+
+#define CFG_DATA_BLOCK_SIZE			0x6b0
+
+#define CFG_LAST_DATA_BLOCK_SIZE		0x6c0
+
+#define CFG_NUM_DATA_BLOCKS			0x6d0
+
+#define CFG_META_DATA_SIZE			0x6e0
 
 #define DMA_ENABLE				0x700
-#define     DMA_ENABLE__FLAG				0x0001
+#define     DMA_ENABLE__FLAG				BIT(0)
 
 #define IGNORE_ECC_DONE				0x710
-#define     IGNORE_ECC_DONE__FLAG			0x0001
+#define     IGNORE_ECC_DONE__FLAG			BIT(0)
 
 #define DMA_INTR				0x720
 #define DMA_INTR_EN				0x730
-#define     DMA_INTR__TARGET_ERROR			0x0001
-#define     DMA_INTR__DESC_COMP_CHANNEL0		0x0002
-#define     DMA_INTR__DESC_COMP_CHANNEL1		0x0004
-#define     DMA_INTR__DESC_COMP_CHANNEL2		0x0008
-#define     DMA_INTR__DESC_COMP_CHANNEL3		0x0010
-#define     DMA_INTR__MEMCOPY_DESC_COMP			0x0020
+#define     DMA_INTR__TARGET_ERROR			BIT(0)
+#define     DMA_INTR__DESC_COMP_CHANNEL0		BIT(1)
+#define     DMA_INTR__DESC_COMP_CHANNEL1		BIT(2)
+#define     DMA_INTR__DESC_COMP_CHANNEL2		BIT(3)
+#define     DMA_INTR__DESC_COMP_CHANNEL3		BIT(4)
+#define     DMA_INTR__MEMCOPY_DESC_COMP			BIT(5)
 
 #define TARGET_ERR_ADDR_LO			0x740
-#define     TARGET_ERR_ADDR_LO__VALUE			0xffff
+#define     TARGET_ERR_ADDR_LO__VALUE			GENMASK(15, 0)
 
 #define TARGET_ERR_ADDR_HI			0x750
-#define     TARGET_ERR_ADDR_HI__VALUE			0xffff
+#define     TARGET_ERR_ADDR_HI__VALUE			GENMASK(15, 0)
 
 #define CHNL_ACTIVE				0x760
-#define     CHNL_ACTIVE__CHANNEL0			0x0001
-#define     CHNL_ACTIVE__CHANNEL1			0x0002
-#define     CHNL_ACTIVE__CHANNEL2			0x0004
-#define     CHNL_ACTIVE__CHANNEL3			0x0008
-
-#define FAIL 1                  /*failed flag*/
-#define PASS 0                  /*success flag*/
-
-#define CLK_X  5
-#define CLK_MULTI 4
-
-#define ONFI_BLOOM_TIME         1
-#define MODE5_WORKAROUND        0
-
-
-#define MODE_00    0x00000000
-#define MODE_01    0x04000000
-#define MODE_10    0x08000000
-#define MODE_11    0x0C000000
-
-#define ECC_SECTOR_SIZE     512
-
-struct nand_buf {
-	int head;
-	int tail;
-	uint8_t *buf;
-	dma_addr_t dma_buf;
-};
-
-#define INTEL_CE4100	1
-#define INTEL_MRST	2
-#define DT		3
+#define     CHNL_ACTIVE__CHANNEL0			BIT(0)
+#define     CHNL_ACTIVE__CHANNEL1			BIT(1)
+#define     CHNL_ACTIVE__CHANNEL2			BIT(2)
+#define     CHNL_ACTIVE__CHANNEL3			BIT(3)
 
 struct denali_nand_info {
 	struct nand_chip nand;
-	int flash_bank; /* currently selected chip */
-	int status;
-	int platform;
-	struct nand_buf buf;
+	unsigned long clk_x_rate;	/* bus interface clock rate */
+	int active_bank;		/* currently selected bank */
 	struct device *dev;
-	int total_used_banks;
-	int page;
-	void __iomem *flash_reg;	/* Register Interface */
-	void __iomem *flash_mem;	/* Host Data/Command Interface */
+	void __iomem *reg;		/* Register Interface */
+	void __iomem *host;		/* Host Data/Command Interface */
 
 	/* elements used by ISR */
 	struct completion complete;
 	spinlock_t irq_lock;
+	uint32_t irq_mask;
 	uint32_t irq_status;
 	int irq;
 
-	int devnum;	/* represent how many nands connected */
-	int bbtskipbytes;
+	void *buf;
+	dma_addr_t dma_addr;
+	int dma_avail;
+	int devs_per_cs;		/* devices connected in parallel */
+	int oob_skip_bytes;
 	int max_banks;
 	unsigned int revision;
 	unsigned int caps;
+	const struct nand_ecc_caps *ecc_caps;
 };
 
 #define DENALI_CAP_HW_ECC_FIXUP			BIT(0)
 #define DENALI_CAP_DMA_64BIT			BIT(1)
 
+int denali_calc_ecc_bytes(int step_size, int strength);
 extern int denali_init(struct denali_nand_info *denali);
 extern void denali_remove(struct denali_nand_info *denali);
 
diff --git a/drivers/mtd/nand/denali_dt.c b/drivers/mtd/nand/denali_dt.c
index df9ef36cc2ce..47f398edf18f 100644
--- a/drivers/mtd/nand/denali_dt.c
+++ b/drivers/mtd/nand/denali_dt.c
@@ -32,10 +32,31 @@ struct denali_dt {
 struct denali_dt_data {
 	unsigned int revision;
 	unsigned int caps;
+	const struct nand_ecc_caps *ecc_caps;
 };
 
+NAND_ECC_CAPS_SINGLE(denali_socfpga_ecc_caps, denali_calc_ecc_bytes,
+		     512, 8, 15);
 static const struct denali_dt_data denali_socfpga_data = {
 	.caps = DENALI_CAP_HW_ECC_FIXUP,
+	.ecc_caps = &denali_socfpga_ecc_caps,
+};
+
+NAND_ECC_CAPS_SINGLE(denali_uniphier_v5a_ecc_caps, denali_calc_ecc_bytes,
+		     1024, 8, 16, 24);
+static const struct denali_dt_data denali_uniphier_v5a_data = {
+	.caps = DENALI_CAP_HW_ECC_FIXUP |
+		DENALI_CAP_DMA_64BIT,
+	.ecc_caps = &denali_uniphier_v5a_ecc_caps,
+};
+
+NAND_ECC_CAPS_SINGLE(denali_uniphier_v5b_ecc_caps, denali_calc_ecc_bytes,
+		     1024, 8, 16);
+static const struct denali_dt_data denali_uniphier_v5b_data = {
+	.revision = 0x0501,
+	.caps = DENALI_CAP_HW_ECC_FIXUP |
+		DENALI_CAP_DMA_64BIT,
+	.ecc_caps = &denali_uniphier_v5b_ecc_caps,
 };
 
 static const struct of_device_id denali_nand_dt_ids[] = {
@@ -43,13 +64,21 @@ static const struct of_device_id denali_nand_dt_ids[] = {
 		.compatible = "altr,socfpga-denali-nand",
 		.data = &denali_socfpga_data,
 	},
+	{
+		.compatible = "socionext,uniphier-denali-nand-v5a",
+		.data = &denali_uniphier_v5a_data,
+	},
+	{
+		.compatible = "socionext,uniphier-denali-nand-v5b",
+		.data = &denali_uniphier_v5b_data,
+	},
 	{ /* sentinel */ }
 };
 MODULE_DEVICE_TABLE(of, denali_nand_dt_ids);
 
 static int denali_dt_probe(struct platform_device *pdev)
 {
-	struct resource *denali_reg, *nand_data;
+	struct resource *res;
 	struct denali_dt *dt;
 	const struct denali_dt_data *data;
 	struct denali_nand_info *denali;
@@ -64,9 +93,9 @@ static int denali_dt_probe(struct platform_device *pdev)
 	if (data) {
 		denali->revision = data->revision;
 		denali->caps = data->caps;
+		denali->ecc_caps = data->ecc_caps;
 	}
 
-	denali->platform = DT;
 	denali->dev = &pdev->dev;
 	denali->irq = platform_get_irq(pdev, 0);
 	if (denali->irq < 0) {
@@ -74,17 +103,15 @@ static int denali_dt_probe(struct platform_device *pdev)
 		return denali->irq;
 	}
 
-	denali_reg = platform_get_resource_byname(pdev, IORESOURCE_MEM,
-						  "denali_reg");
-	denali->flash_reg = devm_ioremap_resource(&pdev->dev, denali_reg);
-	if (IS_ERR(denali->flash_reg))
-		return PTR_ERR(denali->flash_reg);
+	res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "denali_reg");
+	denali->reg = devm_ioremap_resource(&pdev->dev, res);
+	if (IS_ERR(denali->reg))
+		return PTR_ERR(denali->reg);
 
-	nand_data = platform_get_resource_byname(pdev, IORESOURCE_MEM,
-						 "nand_data");
-	denali->flash_mem = devm_ioremap_resource(&pdev->dev, nand_data);
-	if (IS_ERR(denali->flash_mem))
-		return PTR_ERR(denali->flash_mem);
+	res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "nand_data");
+	denali->host = devm_ioremap_resource(&pdev->dev, res);
+	if (IS_ERR(denali->host))
+		return PTR_ERR(denali->host);
 
 	dt->clk = devm_clk_get(&pdev->dev, NULL);
 	if (IS_ERR(dt->clk)) {
@@ -93,6 +120,8 @@ static int denali_dt_probe(struct platform_device *pdev)
 	}
 	clk_prepare_enable(dt->clk);
 
+	denali->clk_x_rate = clk_get_rate(dt->clk);
+
 	ret = denali_init(denali);
 	if (ret)
 		goto out_disable_clk;
diff --git a/drivers/mtd/nand/denali_pci.c b/drivers/mtd/nand/denali_pci.c
index ac843238b77e..81370c79aa48 100644
--- a/drivers/mtd/nand/denali_pci.c
+++ b/drivers/mtd/nand/denali_pci.c
@@ -19,6 +19,9 @@
 
 #define DENALI_NAND_NAME    "denali-nand-pci"
 
+#define INTEL_CE4100	1
+#define INTEL_MRST	2
+
 /* List of platforms this NAND controller has be integrated into */
 static const struct pci_device_id denali_pci_ids[] = {
 	{ PCI_VDEVICE(INTEL, 0x0701), INTEL_CE4100 },
@@ -27,6 +30,8 @@ static const struct pci_device_id denali_pci_ids[] = {
 };
 MODULE_DEVICE_TABLE(pci, denali_pci_ids);
 
+NAND_ECC_CAPS_SINGLE(denali_pci_ecc_caps, denali_calc_ecc_bytes, 512, 8, 15);
+
 static int denali_pci_probe(struct pci_dev *dev, const struct pci_device_id *id)
 {
 	int ret;
@@ -45,13 +50,11 @@ static int denali_pci_probe(struct pci_dev *dev, const struct pci_device_id *id)
 	}
 
 	if (id->driver_data == INTEL_CE4100) {
-		denali->platform = INTEL_CE4100;
 		mem_base = pci_resource_start(dev, 0);
 		mem_len = pci_resource_len(dev, 1);
 		csr_base = pci_resource_start(dev, 1);
 		csr_len = pci_resource_len(dev, 1);
 	} else {
-		denali->platform = INTEL_MRST;
 		csr_base = pci_resource_start(dev, 0);
 		csr_len = pci_resource_len(dev, 0);
 		mem_base = pci_resource_start(dev, 1);
@@ -65,6 +68,9 @@ static int denali_pci_probe(struct pci_dev *dev, const struct pci_device_id *id)
 	pci_set_master(dev);
 	denali->dev = &dev->dev;
 	denali->irq = dev->irq;
+	denali->ecc_caps = &denali_pci_ecc_caps;
+	denali->nand.ecc.options |= NAND_ECC_MAXIMIZE;
+	denali->clk_x_rate = 200000000;		/* 200 MHz */
 
 	ret = pci_request_regions(dev, DENALI_NAND_NAME);
 	if (ret) {
@@ -72,14 +78,14 @@ static int denali_pci_probe(struct pci_dev *dev, const struct pci_device_id *id)
 		return ret;
 	}
 
-	denali->flash_reg = ioremap_nocache(csr_base, csr_len);
-	if (!denali->flash_reg) {
+	denali->reg = ioremap_nocache(csr_base, csr_len);
+	if (!denali->reg) {
 		dev_err(&dev->dev, "Spectra: Unable to remap memory region\n");
 		return -ENOMEM;
 	}
 
-	denali->flash_mem = ioremap_nocache(mem_base, mem_len);
-	if (!denali->flash_mem) {
+	denali->host = ioremap_nocache(mem_base, mem_len);
+	if (!denali->host) {
 		dev_err(&dev->dev, "Spectra: ioremap_nocache failed!");
 		ret = -ENOMEM;
 		goto failed_remap_reg;
@@ -94,9 +100,9 @@ static int denali_pci_probe(struct pci_dev *dev, const struct pci_device_id *id)
 	return 0;
 
 failed_remap_mem:
-	iounmap(denali->flash_mem);
+	iounmap(denali->host);
 failed_remap_reg:
-	iounmap(denali->flash_reg);
+	iounmap(denali->reg);
 	return ret;
 }
 
@@ -106,8 +112,8 @@ static void denali_pci_remove(struct pci_dev *dev)
 	struct denali_nand_info *denali = pci_get_drvdata(dev);
 
 	denali_remove(denali);
-	iounmap(denali->flash_reg);
-	iounmap(denali->flash_mem);
+	iounmap(denali->reg);
+	iounmap(denali->host);
 }
 
 static struct pci_driver denali_pci_driver = {
diff --git a/drivers/mtd/nand/docg4.c b/drivers/mtd/nand/docg4.c
index 7af2a3cd949e..a27a84fbfb84 100644
--- a/drivers/mtd/nand/docg4.c
+++ b/drivers/mtd/nand/docg4.c
@@ -1260,6 +1260,8 @@ static void __init init_mtd_structs(struct mtd_info *mtd)
 	nand->read_buf = docg4_read_buf;
 	nand->write_buf = docg4_write_buf16;
 	nand->erase = docg4_erase_block;
+	nand->onfi_set_features = nand_onfi_get_set_features_notsupp;
+	nand->onfi_get_features = nand_onfi_get_set_features_notsupp;
 	nand->ecc.read_page = docg4_read_page;
 	nand->ecc.write_page = docg4_write_page;
 	nand->ecc.read_page_raw = docg4_read_page_raw;
diff --git a/drivers/mtd/nand/fsl_elbc_nand.c b/drivers/mtd/nand/fsl_elbc_nand.c
index 113f76e59937..b9ac16f05057 100644
--- a/drivers/mtd/nand/fsl_elbc_nand.c
+++ b/drivers/mtd/nand/fsl_elbc_nand.c
@@ -775,6 +775,8 @@ static int fsl_elbc_chip_init(struct fsl_elbc_mtd *priv)
 	chip->select_chip = fsl_elbc_select_chip;
 	chip->cmdfunc = fsl_elbc_cmdfunc;
 	chip->waitfunc = fsl_elbc_wait;
+	chip->onfi_set_features = nand_onfi_get_set_features_notsupp;
+	chip->onfi_get_features = nand_onfi_get_set_features_notsupp;
 
 	chip->bbt_td = &bbt_main_descr;
 	chip->bbt_md = &bbt_mirror_descr;
diff --git a/drivers/mtd/nand/fsl_ifc_nand.c b/drivers/mtd/nand/fsl_ifc_nand.c
index d1570f512f0b..59408ec2c69f 100644
--- a/drivers/mtd/nand/fsl_ifc_nand.c
+++ b/drivers/mtd/nand/fsl_ifc_nand.c
@@ -171,34 +171,6 @@ static void set_addr(struct mtd_info *mtd, int column, int page_addr, int oob)
 		ifc_nand_ctrl->index += mtd->writesize;
 }
 
-static int is_blank(struct mtd_info *mtd, unsigned int bufnum)
-{
-	struct nand_chip *chip = mtd_to_nand(mtd);
-	struct fsl_ifc_mtd *priv = nand_get_controller_data(chip);
-	u8 __iomem *addr = priv->vbase + bufnum * (mtd->writesize * 2);
-	u32 __iomem *mainarea = (u32 __iomem *)addr;
-	u8 __iomem *oob = addr + mtd->writesize;
-	struct mtd_oob_region oobregion = { };
-	int i, section = 0;
-
-	for (i = 0; i < mtd->writesize / 4; i++) {
-		if (__raw_readl(&mainarea[i]) != 0xffffffff)
-			return 0;
-	}
-
-	mtd_ooblayout_ecc(mtd, section++, &oobregion);
-	while (oobregion.length) {
-		for (i = 0; i < oobregion.length; i++) {
-			if (__raw_readb(&oob[oobregion.offset + i]) != 0xff)
-				return 0;
-		}
-
-		mtd_ooblayout_ecc(mtd, section++, &oobregion);
-	}
-
-	return 1;
-}
-
 /* returns nonzero if entire page is blank */
 static int check_read_ecc(struct mtd_info *mtd, struct fsl_ifc_ctrl *ctrl,
 			  u32 *eccstat, unsigned int bufnum)
@@ -274,16 +246,14 @@ static void fsl_ifc_run_command(struct mtd_info *mtd)
 			if (errors == 15) {
 				/*
 				 * Uncorrectable error.
-				 * OK only if the whole page is blank.
+				 * We'll check for blank pages later.
 				 *
 				 * We disable ECCER reporting due to...
 				 * erratum IFC-A002770 -- so report it now if we
 				 * see an uncorrectable error in ECCSTAT.
 				 */
-				if (!is_blank(mtd, bufnum))
-					ctrl->nand_stat |=
-						IFC_NAND_EVTER_STAT_ECCER;
-				break;
+				ctrl->nand_stat |= IFC_NAND_EVTER_STAT_ECCER;
+				continue;
 			}
 
 			mtd->ecc_stats.corrected += errors;
@@ -678,6 +648,39 @@ static int fsl_ifc_wait(struct mtd_info *mtd, struct nand_chip *chip)
 	return nand_fsr | NAND_STATUS_WP;
 }
 
+/*
+ * The controller does not check for bitflips in erased pages,
+ * therefore software must check instead.
+ */
+static int check_erased_page(struct nand_chip *chip, u8 *buf)
+{
+	struct mtd_info *mtd = nand_to_mtd(chip);
+	u8 *ecc = chip->oob_poi;
+	const int ecc_size = chip->ecc.bytes;
+	const int pkt_size = chip->ecc.size;
+	int i, res, bitflips = 0;
+	struct mtd_oob_region oobregion = { };
+
+	mtd_ooblayout_ecc(mtd, 0, &oobregion);
+	ecc += oobregion.offset;
+
+	for (i = 0; i < chip->ecc.steps; ++i) {
+		res = nand_check_erased_ecc_chunk(buf, pkt_size, ecc, ecc_size,
+						  NULL, 0,
+						  chip->ecc.strength);
+		if (res < 0)
+			mtd->ecc_stats.failed++;
+		else
+			mtd->ecc_stats.corrected += res;
+
+		bitflips = max(res, bitflips);
+		buf += pkt_size;
+		ecc += ecc_size;
+	}
+
+	return bitflips;
+}
+
 static int fsl_ifc_read_page(struct mtd_info *mtd, struct nand_chip *chip,
 			     uint8_t *buf, int oob_required, int page)
 {
@@ -689,8 +692,12 @@ static int fsl_ifc_read_page(struct mtd_info *mtd, struct nand_chip *chip,
 	if (oob_required)
 		fsl_ifc_read_buf(mtd, chip->oob_poi, mtd->oobsize);
 
-	if (ctrl->nand_stat & IFC_NAND_EVTER_STAT_ECCER)
-		dev_err(priv->dev, "NAND Flash ECC Uncorrectable Error\n");
+	if (ctrl->nand_stat & IFC_NAND_EVTER_STAT_ECCER) {
+		if (!oob_required)
+			fsl_ifc_read_buf(mtd, chip->oob_poi, mtd->oobsize);
+
+		return check_erased_page(chip, buf);
+	}
 
 	if (ctrl->nand_stat != IFC_NAND_EVTER_STAT_OPC)
 		mtd->ecc_stats.failed++;
@@ -831,6 +838,8 @@ static int fsl_ifc_chip_init(struct fsl_ifc_mtd *priv)
 	chip->select_chip = fsl_ifc_select_chip;
 	chip->cmdfunc = fsl_ifc_cmdfunc;
 	chip->waitfunc = fsl_ifc_wait;
+	chip->onfi_set_features = nand_onfi_get_set_features_notsupp;
+	chip->onfi_get_features = nand_onfi_get_set_features_notsupp;
 
 	chip->bbt_td = &bbt_main_descr;
 	chip->bbt_md = &bbt_mirror_descr;
@@ -904,7 +913,7 @@ static int fsl_ifc_chip_init(struct fsl_ifc_mtd *priv)
 		chip->ecc.algo = NAND_ECC_HAMMING;
 	}
 
-	if (ctrl->version == FSL_IFC_VERSION_1_1_0)
+	if (ctrl->version >= FSL_IFC_VERSION_1_1_0)
 		fsl_ifc_sram_init(priv);
 
 	return 0;
diff --git a/drivers/mtd/nand/fsmc_nand.c b/drivers/mtd/nand/fsmc_nand.c
index cea50d2f218c..9d8b051d3187 100644
--- a/drivers/mtd/nand/fsmc_nand.c
+++ b/drivers/mtd/nand/fsmc_nand.c
@@ -302,25 +302,13 @@ static void fsmc_cmd_ctrl(struct mtd_info *mtd, int cmd, unsigned int ctrl)
  * This routine initializes timing parameters related to NAND memory access in
  * FSMC registers
  */
-static void fsmc_nand_setup(void __iomem *regs, uint32_t bank,
-			   uint32_t busw, struct fsmc_nand_timings *timings)
+static void fsmc_nand_setup(struct fsmc_nand_data *host,
+			    struct fsmc_nand_timings *tims)
 {
 	uint32_t value = FSMC_DEVTYPE_NAND | FSMC_ENABLE | FSMC_WAITON;
 	uint32_t tclr, tar, thiz, thold, twait, tset;
-	struct fsmc_nand_timings *tims;
-	struct fsmc_nand_timings default_timings = {
-		.tclr	= FSMC_TCLR_1,
-		.tar	= FSMC_TAR_1,
-		.thiz	= FSMC_THIZ_1,
-		.thold	= FSMC_THOLD_4,
-		.twait	= FSMC_TWAIT_6,
-		.tset	= FSMC_TSET_0,
-	};
-
-	if (timings)
-		tims = timings;
-	else
-		tims = &default_timings;
+	unsigned int bank = host->bank;
+	void __iomem *regs = host->regs_va;
 
 	tclr = (tims->tclr & FSMC_TCLR_MASK) << FSMC_TCLR_SHIFT;
 	tar = (tims->tar & FSMC_TAR_MASK) << FSMC_TAR_SHIFT;
@@ -329,7 +317,7 @@ static void fsmc_nand_setup(void __iomem *regs, uint32_t bank,
 	twait = (tims->twait & FSMC_TWAIT_MASK) << FSMC_TWAIT_SHIFT;
 	tset = (tims->tset & FSMC_TSET_MASK) << FSMC_TSET_SHIFT;
 
-	if (busw)
+	if (host->nand.options & NAND_BUSWIDTH_16)
 		writel_relaxed(value | FSMC_DEVWID_16,
 				FSMC_NAND_REG(regs, bank, PC));
 	else
@@ -344,6 +332,87 @@ static void fsmc_nand_setup(void __iomem *regs, uint32_t bank,
 			FSMC_NAND_REG(regs, bank, ATTRIB));
 }
 
+static int fsmc_calc_timings(struct fsmc_nand_data *host,
+			     const struct nand_sdr_timings *sdrt,
+			     struct fsmc_nand_timings *tims)
+{
+	unsigned long hclk = clk_get_rate(host->clk);
+	unsigned long hclkn = NSEC_PER_SEC / hclk;
+	uint32_t thiz, thold, twait, tset;
+
+	if (sdrt->tRC_min < 30000)
+		return -EOPNOTSUPP;
+
+	tims->tar = DIV_ROUND_UP(sdrt->tAR_min / 1000, hclkn) - 1;
+	if (tims->tar > FSMC_TAR_MASK)
+		tims->tar = FSMC_TAR_MASK;
+	tims->tclr = DIV_ROUND_UP(sdrt->tCLR_min / 1000, hclkn) - 1;
+	if (tims->tclr > FSMC_TCLR_MASK)
+		tims->tclr = FSMC_TCLR_MASK;
+
+	thiz = sdrt->tCS_min - sdrt->tWP_min;
+	tims->thiz = DIV_ROUND_UP(thiz / 1000, hclkn);
+
+	thold = sdrt->tDH_min;
+	if (thold < sdrt->tCH_min)
+		thold = sdrt->tCH_min;
+	if (thold < sdrt->tCLH_min)
+		thold = sdrt->tCLH_min;
+	if (thold < sdrt->tWH_min)
+		thold = sdrt->tWH_min;
+	if (thold < sdrt->tALH_min)
+		thold = sdrt->tALH_min;
+	if (thold < sdrt->tREH_min)
+		thold = sdrt->tREH_min;
+	tims->thold = DIV_ROUND_UP(thold / 1000, hclkn);
+	if (tims->thold == 0)
+		tims->thold = 1;
+	else if (tims->thold > FSMC_THOLD_MASK)
+		tims->thold = FSMC_THOLD_MASK;
+
+	twait = max(sdrt->tRP_min, sdrt->tWP_min);
+	tims->twait = DIV_ROUND_UP(twait / 1000, hclkn) - 1;
+	if (tims->twait == 0)
+		tims->twait = 1;
+	else if (tims->twait > FSMC_TWAIT_MASK)
+		tims->twait = FSMC_TWAIT_MASK;
+
+	tset = max(sdrt->tCS_min - sdrt->tWP_min,
+		   sdrt->tCEA_max - sdrt->tREA_max);
+	tims->tset = DIV_ROUND_UP(tset / 1000, hclkn) - 1;
+	if (tims->tset == 0)
+		tims->tset = 1;
+	else if (tims->tset > FSMC_TSET_MASK)
+		tims->tset = FSMC_TSET_MASK;
+
+	return 0;
+}
+
+static int fsmc_setup_data_interface(struct mtd_info *mtd, int csline,
+				     const struct nand_data_interface *conf)
+{
+	struct nand_chip *nand = mtd_to_nand(mtd);
+	struct fsmc_nand_data *host = nand_get_controller_data(nand);
+	struct fsmc_nand_timings tims;
+	const struct nand_sdr_timings *sdrt;
+	int ret;
+
+	sdrt = nand_get_sdr_timings(conf);
+	if (IS_ERR(sdrt))
+		return PTR_ERR(sdrt);
+
+	ret = fsmc_calc_timings(host, sdrt, &tims);
+	if (ret)
+		return ret;
+
+	if (csline == NAND_DATA_IFACE_CHECK_ONLY)
+		return 0;
+
+	fsmc_nand_setup(host, &tims);
+
+	return 0;
+}
+
 /*
  * fsmc_enable_hwecc - Enables Hardware ECC through FSMC registers
  */
@@ -796,10 +865,8 @@ static int fsmc_nand_probe_config_dt(struct platform_device *pdev,
 		return -ENOMEM;
 	ret = of_property_read_u8_array(np, "timings", (u8 *)host->dev_timings,
 						sizeof(*host->dev_timings));
-	if (ret) {
-		dev_info(&pdev->dev, "No timings in dts specified, using default timings!\n");
+	if (ret)
 		host->dev_timings = NULL;
-	}
 
 	/* Set default NAND bank to 0 */
 	host->bank = 0;
@@ -933,9 +1000,10 @@ static int __init fsmc_nand_probe(struct platform_device *pdev)
 		break;
 	}
 
-	fsmc_nand_setup(host->regs_va, host->bank,
-			nand->options & NAND_BUSWIDTH_16,
-			host->dev_timings);
+	if (host->dev_timings)
+		fsmc_nand_setup(host, host->dev_timings);
+	else
+		nand->setup_data_interface = fsmc_setup_data_interface;
 
 	if (AMBA_REV_BITS(host->pid) >= 8) {
 		nand->ecc.read_page = fsmc_read_page_hwecc;
@@ -986,6 +1054,9 @@ static int __init fsmc_nand_probe(struct platform_device *pdev)
 				break;
 			}
 
+		case NAND_ECC_ON_DIE:
+			break;
+
 		default:
 			dev_err(&pdev->dev, "Unsupported ECC mode!\n");
 			goto err_probe;
@@ -1073,9 +1144,8 @@ static int fsmc_nand_resume(struct device *dev)
 	struct fsmc_nand_data *host = dev_get_drvdata(dev);
 	if (host) {
 		clk_prepare_enable(host->clk);
-		fsmc_nand_setup(host->regs_va, host->bank,
-				host->nand.options & NAND_BUSWIDTH_16,
-				host->dev_timings);
+		if (host->dev_timings)
+			fsmc_nand_setup(host, host->dev_timings);
 	}
 	return 0;
 }
diff --git a/drivers/mtd/nand/gpmi-nand/gpmi-lib.c b/drivers/mtd/nand/gpmi-nand/gpmi-lib.c
index 141bd70a49c2..97787246af41 100644
--- a/drivers/mtd/nand/gpmi-nand/gpmi-lib.c
+++ b/drivers/mtd/nand/gpmi-nand/gpmi-lib.c
@@ -26,7 +26,7 @@
 #include "gpmi-regs.h"
 #include "bch-regs.h"
 
-static struct timing_threshod timing_default_threshold = {
+static struct timing_threshold timing_default_threshold = {
 	.max_data_setup_cycles       = (BM_GPMI_TIMING0_DATA_SETUP >>
 						BP_GPMI_TIMING0_DATA_SETUP),
 	.internal_data_setup_in_ns   = 0,
@@ -329,7 +329,7 @@ static unsigned int ns_to_cycles(unsigned int time,
 static int gpmi_nfc_compute_hardware_timing(struct gpmi_nand_data *this,
 					struct gpmi_nfc_hardware_timing *hw)
 {
-	struct timing_threshod *nfc = &timing_default_threshold;
+	struct timing_threshold *nfc = &timing_default_threshold;
 	struct resources *r = &this->resources;
 	struct nand_chip *nand = &this->nand;
 	struct nand_timing target = this->timing;
@@ -932,7 +932,7 @@ static int enable_edo_mode(struct gpmi_nand_data *this, int mode)
 
 	nand->select_chip(mtd, 0);
 
-	/* [1] send SET FEATURE commond to NAND */
+	/* [1] send SET FEATURE command to NAND */
 	feature[0] = mode;
 	ret = nand->onfi_set_features(mtd, nand,
 				ONFI_FEATURE_ADDR_TIMING_MODE, feature);
diff --git a/drivers/mtd/nand/gpmi-nand/gpmi-nand.c b/drivers/mtd/nand/gpmi-nand/gpmi-nand.c
index d52139635b67..50f8d4a1b983 100644
--- a/drivers/mtd/nand/gpmi-nand/gpmi-nand.c
+++ b/drivers/mtd/nand/gpmi-nand/gpmi-nand.c
@@ -82,6 +82,10 @@ static int gpmi_ooblayout_free(struct mtd_info *mtd, int section,
 	return 0;
 }
 
+static const char * const gpmi_clks_for_mx2x[] = {
+	"gpmi_io",
+};
+
 static const struct mtd_ooblayout_ops gpmi_ooblayout_ops = {
 	.ecc = gpmi_ooblayout_ecc,
 	.free = gpmi_ooblayout_free,
@@ -91,24 +95,48 @@ static const struct gpmi_devdata gpmi_devdata_imx23 = {
 	.type = IS_MX23,
 	.bch_max_ecc_strength = 20,
 	.max_chain_delay = 16,
+	.clks = gpmi_clks_for_mx2x,
+	.clks_count = ARRAY_SIZE(gpmi_clks_for_mx2x),
 };
 
 static const struct gpmi_devdata gpmi_devdata_imx28 = {
 	.type = IS_MX28,
 	.bch_max_ecc_strength = 20,
 	.max_chain_delay = 16,
+	.clks = gpmi_clks_for_mx2x,
+	.clks_count = ARRAY_SIZE(gpmi_clks_for_mx2x),
+};
+
+static const char * const gpmi_clks_for_mx6[] = {
+	"gpmi_io", "gpmi_apb", "gpmi_bch", "gpmi_bch_apb", "per1_bch",
 };
 
 static const struct gpmi_devdata gpmi_devdata_imx6q = {
 	.type = IS_MX6Q,
 	.bch_max_ecc_strength = 40,
 	.max_chain_delay = 12,
+	.clks = gpmi_clks_for_mx6,
+	.clks_count = ARRAY_SIZE(gpmi_clks_for_mx6),
 };
 
 static const struct gpmi_devdata gpmi_devdata_imx6sx = {
 	.type = IS_MX6SX,
 	.bch_max_ecc_strength = 62,
 	.max_chain_delay = 12,
+	.clks = gpmi_clks_for_mx6,
+	.clks_count = ARRAY_SIZE(gpmi_clks_for_mx6),
+};
+
+static const char * const gpmi_clks_for_mx7d[] = {
+	"gpmi_io", "gpmi_bch_apb",
+};
+
+static const struct gpmi_devdata gpmi_devdata_imx7d = {
+	.type = IS_MX7D,
+	.bch_max_ecc_strength = 62,
+	.max_chain_delay = 12,
+	.clks = gpmi_clks_for_mx7d,
+	.clks_count = ARRAY_SIZE(gpmi_clks_for_mx7d),
 };
 
 static irqreturn_t bch_irq(int irq, void *cookie)
@@ -599,35 +627,14 @@ acquire_err:
 	return -EINVAL;
 }
 
-static char *extra_clks_for_mx6q[GPMI_CLK_MAX] = {
-	"gpmi_apb", "gpmi_bch", "gpmi_bch_apb", "per1_bch",
-};
-
 static int gpmi_get_clks(struct gpmi_nand_data *this)
 {
 	struct resources *r = &this->resources;
-	char **extra_clks = NULL;
 	struct clk *clk;
 	int err, i;
 
-	/* The main clock is stored in the first. */
-	r->clock[0] = devm_clk_get(this->dev, "gpmi_io");
-	if (IS_ERR(r->clock[0])) {
-		err = PTR_ERR(r->clock[0]);
-		goto err_clock;
-	}
-
-	/* Get extra clocks */
-	if (GPMI_IS_MX6(this))
-		extra_clks = extra_clks_for_mx6q;
-	if (!extra_clks)
-		return 0;
-
-	for (i = 1; i < GPMI_CLK_MAX; i++) {
-		if (extra_clks[i - 1] == NULL)
-			break;
-
-		clk = devm_clk_get(this->dev, extra_clks[i - 1]);
+	for (i = 0; i < this->devdata->clks_count; i++) {
+		clk = devm_clk_get(this->dev, this->devdata->clks[i]);
 		if (IS_ERR(clk)) {
 			err = PTR_ERR(clk);
 			goto err_clock;
@@ -1929,12 +1936,6 @@ static int gpmi_set_geometry(struct gpmi_nand_data *this)
 	return gpmi_alloc_dma_buffer(this);
 }
 
-static void gpmi_nand_exit(struct gpmi_nand_data *this)
-{
-	nand_release(nand_to_mtd(&this->nand));
-	gpmi_free_dma_buffer(this);
-}
-
 static int gpmi_init_last(struct gpmi_nand_data *this)
 {
 	struct nand_chip *chip = &this->nand;
@@ -2048,18 +2049,20 @@ static int gpmi_nand_init(struct gpmi_nand_data *this)
 
 	ret = nand_boot_init(this);
 	if (ret)
-		goto err_out;
+		goto err_nand_cleanup;
 	ret = chip->scan_bbt(mtd);
 	if (ret)
-		goto err_out;
+		goto err_nand_cleanup;
 
 	ret = mtd_device_register(mtd, NULL, 0);
 	if (ret)
-		goto err_out;
+		goto err_nand_cleanup;
 	return 0;
 
+err_nand_cleanup:
+	nand_cleanup(chip);
 err_out:
-	gpmi_nand_exit(this);
+	gpmi_free_dma_buffer(this);
 	return ret;
 }
 
@@ -2076,6 +2079,9 @@ static const struct of_device_id gpmi_nand_id_table[] = {
 	}, {
 		.compatible = "fsl,imx6sx-gpmi-nand",
 		.data = &gpmi_devdata_imx6sx,
+	}, {
+		.compatible = "fsl,imx7d-gpmi-nand",
+		.data = &gpmi_devdata_imx7d,
 	}, {}
 };
 MODULE_DEVICE_TABLE(of, gpmi_nand_id_table);
@@ -2129,7 +2135,8 @@ static int gpmi_nand_remove(struct platform_device *pdev)
 {
 	struct gpmi_nand_data *this = platform_get_drvdata(pdev);
 
-	gpmi_nand_exit(this);
+	nand_release(nand_to_mtd(&this->nand));
+	gpmi_free_dma_buffer(this);
 	release_resources(this);
 	return 0;
 }
diff --git a/drivers/mtd/nand/gpmi-nand/gpmi-nand.h b/drivers/mtd/nand/gpmi-nand/gpmi-nand.h
index 4e49a1f5fa27..9df0ad64e7e0 100644
--- a/drivers/mtd/nand/gpmi-nand/gpmi-nand.h
+++ b/drivers/mtd/nand/gpmi-nand/gpmi-nand.h
@@ -123,13 +123,16 @@ enum gpmi_type {
 	IS_MX23,
 	IS_MX28,
 	IS_MX6Q,
-	IS_MX6SX
+	IS_MX6SX,
+	IS_MX7D,
 };
 
 struct gpmi_devdata {
 	enum gpmi_type type;
 	int bch_max_ecc_strength;
 	int max_chain_delay; /* See the async EDO mode */
+	const char * const *clks;
+	const int clks_count;
 };
 
 struct gpmi_nand_data {
@@ -231,7 +234,7 @@ struct gpmi_nfc_hardware_timing {
 };
 
 /**
- * struct timing_threshod - Timing threshold
+ * struct timing_threshold - Timing threshold
  * @max_data_setup_cycles:       The maximum number of data setup cycles that
  *                               can be expressed in the hardware.
  * @internal_data_setup_in_ns:   The time, in ns, that the NFC hardware requires
@@ -253,7 +256,7 @@ struct gpmi_nfc_hardware_timing {
  *                               progress, this is the clock frequency during
  *                               the most recent I/O transaction.
  */
-struct timing_threshod {
+struct timing_threshold {
 	const unsigned int      max_chip_count;
 	const unsigned int      max_data_setup_cycles;
 	const unsigned int      internal_data_setup_in_ns;
@@ -305,6 +308,8 @@ void gpmi_copy_bits(u8 *dst, size_t dst_bit_off,
 #define GPMI_IS_MX28(x)		((x)->devdata->type == IS_MX28)
 #define GPMI_IS_MX6Q(x)		((x)->devdata->type == IS_MX6Q)
 #define GPMI_IS_MX6SX(x)	((x)->devdata->type == IS_MX6SX)
+#define GPMI_IS_MX7D(x)		((x)->devdata->type == IS_MX7D)
 
-#define GPMI_IS_MX6(x)		(GPMI_IS_MX6Q(x) || GPMI_IS_MX6SX(x))
+#define GPMI_IS_MX6(x)		(GPMI_IS_MX6Q(x) || GPMI_IS_MX6SX(x) || \
+				 GPMI_IS_MX7D(x))
 #endif
diff --git a/drivers/mtd/nand/hisi504_nand.c b/drivers/mtd/nand/hisi504_nand.c
index e40364eeb556..530caa80b1b6 100644
--- a/drivers/mtd/nand/hisi504_nand.c
+++ b/drivers/mtd/nand/hisi504_nand.c
@@ -764,6 +764,8 @@ static int hisi_nfc_probe(struct platform_device *pdev)
 	chip->write_buf		= hisi_nfc_write_buf;
 	chip->read_buf		= hisi_nfc_read_buf;
 	chip->chip_delay	= HINFC504_CHIP_DELAY;
+	chip->onfi_set_features	= nand_onfi_get_set_features_notsupp;
+	chip->onfi_get_features	= nand_onfi_get_set_features_notsupp;
 
 	hisi_nfc_host_init(host);
 
diff --git a/drivers/mtd/nand/jz4780_nand.c b/drivers/mtd/nand/jz4780_nand.c
index a39bb70175ee..8bc835f71b26 100644
--- a/drivers/mtd/nand/jz4780_nand.c
+++ b/drivers/mtd/nand/jz4780_nand.c
@@ -205,7 +205,7 @@ static int jz4780_nand_init_ecc(struct jz4780_nand_chip *nand, struct device *de
 		return -EINVAL;
 	}
 
-	mtd->ooblayout = &nand_ooblayout_lp_ops;
+	mtd_set_ooblayout(mtd, &nand_ooblayout_lp_ops);
 
 	return 0;
 }
diff --git a/drivers/mtd/nand/mpc5121_nfc.c b/drivers/mtd/nand/mpc5121_nfc.c
index 6d6eaed2d20c..0e86fb6277c3 100644
--- a/drivers/mtd/nand/mpc5121_nfc.c
+++ b/drivers/mtd/nand/mpc5121_nfc.c
@@ -708,6 +708,8 @@ static int mpc5121_nfc_probe(struct platform_device *op)
 	chip->read_buf = mpc5121_nfc_read_buf;
 	chip->write_buf = mpc5121_nfc_write_buf;
 	chip->select_chip = mpc5121_nfc_select_chip;
+	chip->onfi_set_features	= nand_onfi_get_set_features_notsupp;
+	chip->onfi_get_features	= nand_onfi_get_set_features_notsupp;
 	chip->bbt_options = NAND_BBT_USE_FLASH;
 	chip->ecc.mode = NAND_ECC_SOFT;
 	chip->ecc.algo = NAND_ECC_HAMMING;
diff --git a/drivers/mtd/nand/mtk_ecc.c b/drivers/mtd/nand/mtk_ecc.c
index dbf256217b3e..6c3a4aab0b48 100644
--- a/drivers/mtd/nand/mtk_ecc.c
+++ b/drivers/mtd/nand/mtk_ecc.c
@@ -28,36 +28,16 @@
 
 #define ECC_IDLE_MASK		BIT(0)
 #define ECC_IRQ_EN		BIT(0)
+#define ECC_PG_IRQ_SEL		BIT(1)
 #define ECC_OP_ENABLE		(1)
 #define ECC_OP_DISABLE		(0)
 
 #define ECC_ENCCON		(0x00)
 #define ECC_ENCCNFG		(0x04)
-#define		ECC_CNFG_4BIT		(0)
-#define		ECC_CNFG_6BIT		(1)
-#define		ECC_CNFG_8BIT		(2)
-#define		ECC_CNFG_10BIT		(3)
-#define		ECC_CNFG_12BIT		(4)
-#define		ECC_CNFG_14BIT		(5)
-#define		ECC_CNFG_16BIT		(6)
-#define		ECC_CNFG_18BIT		(7)
-#define		ECC_CNFG_20BIT		(8)
-#define		ECC_CNFG_22BIT		(9)
-#define		ECC_CNFG_24BIT		(0xa)
-#define		ECC_CNFG_28BIT		(0xb)
-#define		ECC_CNFG_32BIT		(0xc)
-#define		ECC_CNFG_36BIT		(0xd)
-#define		ECC_CNFG_40BIT		(0xe)
-#define		ECC_CNFG_44BIT		(0xf)
-#define		ECC_CNFG_48BIT		(0x10)
-#define		ECC_CNFG_52BIT		(0x11)
-#define		ECC_CNFG_56BIT		(0x12)
-#define		ECC_CNFG_60BIT		(0x13)
 #define		ECC_MODE_SHIFT		(5)
 #define		ECC_MS_SHIFT		(16)
 #define ECC_ENCDIADDR		(0x08)
 #define ECC_ENCIDLE		(0x0C)
-#define ECC_ENCPAR(x)		(0x10 + (x) * sizeof(u32))
 #define ECC_ENCIRQ_EN		(0x80)
 #define ECC_ENCIRQ_STA		(0x84)
 #define ECC_DECCON		(0x100)
@@ -66,7 +46,6 @@
 #define		DEC_CNFG_CORRECT	(0x3 << 12)
 #define ECC_DECIDLE		(0x10C)
 #define ECC_DECENUM0		(0x114)
-#define		ERR_MASK		(0x3f)
 #define ECC_DECDONE		(0x124)
 #define ECC_DECIRQ_EN		(0x200)
 #define ECC_DECIRQ_STA		(0x204)
@@ -78,8 +57,17 @@
 #define ECC_IRQ_REG(op)		((op) == ECC_ENCODE ? \
 					ECC_ENCIRQ_EN : ECC_DECIRQ_EN)
 
+struct mtk_ecc_caps {
+	u32 err_mask;
+	const u8 *ecc_strength;
+	u8 num_ecc_strength;
+	u32 encode_parity_reg0;
+	int pg_irq_sel;
+};
+
 struct mtk_ecc {
 	struct device *dev;
+	const struct mtk_ecc_caps *caps;
 	void __iomem *regs;
 	struct clk *clk;
 
@@ -87,7 +75,18 @@ struct mtk_ecc {
 	struct mutex lock;
 	u32 sectors;
 
-	u8 eccdata[112];
+	u8 *eccdata;
+};
+
+/* ecc strength that each IP supports */
+static const u8 ecc_strength_mt2701[] = {
+	4, 6, 8, 10, 12, 14, 16, 18, 20, 22, 24, 28, 32, 36,
+	40, 44, 48, 52, 56, 60
+};
+
+static const u8 ecc_strength_mt2712[] = {
+	4, 6, 8, 10, 12, 14, 16, 18, 20, 22, 24, 28, 32, 36,
+	40, 44, 48, 52, 56, 60, 68, 72, 80
 };
 
 static inline void mtk_ecc_wait_idle(struct mtk_ecc *ecc,
@@ -136,77 +135,24 @@ static irqreturn_t mtk_ecc_irq(int irq, void *id)
 	return IRQ_HANDLED;
 }
 
-static void mtk_ecc_config(struct mtk_ecc *ecc, struct mtk_ecc_config *config)
+static int mtk_ecc_config(struct mtk_ecc *ecc, struct mtk_ecc_config *config)
 {
-	u32 ecc_bit = ECC_CNFG_4BIT, dec_sz, enc_sz;
-	u32 reg;
-
-	switch (config->strength) {
-	case 4:
-		ecc_bit = ECC_CNFG_4BIT;
-		break;
-	case 6:
-		ecc_bit = ECC_CNFG_6BIT;
-		break;
-	case 8:
-		ecc_bit = ECC_CNFG_8BIT;
-		break;
-	case 10:
-		ecc_bit = ECC_CNFG_10BIT;
-		break;
-	case 12:
-		ecc_bit = ECC_CNFG_12BIT;
-		break;
-	case 14:
-		ecc_bit = ECC_CNFG_14BIT;
-		break;
-	case 16:
-		ecc_bit = ECC_CNFG_16BIT;
-		break;
-	case 18:
-		ecc_bit = ECC_CNFG_18BIT;
-		break;
-	case 20:
-		ecc_bit = ECC_CNFG_20BIT;
-		break;
-	case 22:
-		ecc_bit = ECC_CNFG_22BIT;
-		break;
-	case 24:
-		ecc_bit = ECC_CNFG_24BIT;
-		break;
-	case 28:
-		ecc_bit = ECC_CNFG_28BIT;
-		break;
-	case 32:
-		ecc_bit = ECC_CNFG_32BIT;
-		break;
-	case 36:
-		ecc_bit = ECC_CNFG_36BIT;
-		break;
-	case 40:
-		ecc_bit = ECC_CNFG_40BIT;
-		break;
-	case 44:
-		ecc_bit = ECC_CNFG_44BIT;
-		break;
-	case 48:
-		ecc_bit = ECC_CNFG_48BIT;
-		break;
-	case 52:
-		ecc_bit = ECC_CNFG_52BIT;
-		break;
-	case 56:
-		ecc_bit = ECC_CNFG_56BIT;
-		break;
-	case 60:
-		ecc_bit = ECC_CNFG_60BIT;
-		break;
-	default:
-		dev_err(ecc->dev, "invalid strength %d, default to 4 bits\n",
+	u32 ecc_bit, dec_sz, enc_sz;
+	u32 reg, i;
+
+	for (i = 0; i < ecc->caps->num_ecc_strength; i++) {
+		if (ecc->caps->ecc_strength[i] == config->strength)
+			break;
+	}
+
+	if (i == ecc->caps->num_ecc_strength) {
+		dev_err(ecc->dev, "invalid ecc strength %d\n",
 			config->strength);
+		return -EINVAL;
 	}
 
+	ecc_bit = i;
+
 	if (config->op == ECC_ENCODE) {
 		/* configure ECC encoder (in bits) */
 		enc_sz = config->len << 3;
@@ -232,6 +178,8 @@ static void mtk_ecc_config(struct mtk_ecc *ecc, struct mtk_ecc_config *config)
 		if (config->sectors)
 			ecc->sectors = 1 << (config->sectors - 1);
 	}
+
+	return 0;
 }
 
 void mtk_ecc_get_stats(struct mtk_ecc *ecc, struct mtk_ecc_stats *stats,
@@ -247,8 +195,8 @@ void mtk_ecc_get_stats(struct mtk_ecc *ecc, struct mtk_ecc_stats *stats,
 		offset = (i >> 2) << 2;
 		err = readl(ecc->regs + ECC_DECENUM0 + offset);
 		err = err >> ((i % 4) * 8);
-		err &= ERR_MASK;
-		if (err == ERR_MASK) {
+		err &= ecc->caps->err_mask;
+		if (err == ecc->caps->err_mask) {
 			/* uncorrectable errors */
 			stats->failed++;
 			continue;
@@ -313,6 +261,7 @@ EXPORT_SYMBOL(of_mtk_ecc_get);
 int mtk_ecc_enable(struct mtk_ecc *ecc, struct mtk_ecc_config *config)
 {
 	enum mtk_ecc_operation op = config->op;
+	u16 reg_val;
 	int ret;
 
 	ret = mutex_lock_interruptible(&ecc->lock);
@@ -322,11 +271,27 @@ int mtk_ecc_enable(struct mtk_ecc *ecc, struct mtk_ecc_config *config)
 	}
 
 	mtk_ecc_wait_idle(ecc, op);
-	mtk_ecc_config(ecc, config);
-	writew(ECC_OP_ENABLE, ecc->regs + ECC_CTL_REG(op));
 
-	init_completion(&ecc->done);
-	writew(ECC_IRQ_EN, ecc->regs + ECC_IRQ_REG(op));
+	ret = mtk_ecc_config(ecc, config);
+	if (ret) {
+		mutex_unlock(&ecc->lock);
+		return ret;
+	}
+
+	if (config->mode != ECC_NFI_MODE || op != ECC_ENCODE) {
+		init_completion(&ecc->done);
+		reg_val = ECC_IRQ_EN;
+		/*
+		 * For ECC_NFI_MODE, if ecc->caps->pg_irq_sel is 1, then it
+		 * means this chip can only generate one ecc irq during page
+		 * read / write. If is 0, generate one ecc irq each ecc step.
+		 */
+		if (ecc->caps->pg_irq_sel && config->mode == ECC_NFI_MODE)
+			reg_val |= ECC_PG_IRQ_SEL;
+		writew(reg_val, ecc->regs + ECC_IRQ_REG(op));
+	}
+
+	writew(ECC_OP_ENABLE, ecc->regs + ECC_CTL_REG(op));
 
 	return 0;
 }
@@ -396,7 +361,9 @@ int mtk_ecc_encode(struct mtk_ecc *ecc, struct mtk_ecc_config *config,
 	len = (config->strength * ECC_PARITY_BITS + 7) >> 3;
 
 	/* write the parity bytes generated by the ECC back to temp buffer */
-	__ioread32_copy(ecc->eccdata, ecc->regs + ECC_ENCPAR(0), round_up(len, 4));
+	__ioread32_copy(ecc->eccdata,
+			ecc->regs + ecc->caps->encode_parity_reg0,
+			round_up(len, 4));
 
 	/* copy into possibly unaligned OOB region with actual length */
 	memcpy(data + bytes, ecc->eccdata, len);
@@ -409,37 +376,79 @@ timeout:
 }
 EXPORT_SYMBOL(mtk_ecc_encode);
 
-void mtk_ecc_adjust_strength(u32 *p)
+void mtk_ecc_adjust_strength(struct mtk_ecc *ecc, u32 *p)
 {
-	u32 ecc[] = {4, 6, 8, 10, 12, 14, 16, 18, 20, 22, 24, 28, 32, 36,
-			40, 44, 48, 52, 56, 60};
+	const u8 *ecc_strength = ecc->caps->ecc_strength;
 	int i;
 
-	for (i = 0; i < ARRAY_SIZE(ecc); i++) {
-		if (*p <= ecc[i]) {
+	for (i = 0; i < ecc->caps->num_ecc_strength; i++) {
+		if (*p <= ecc_strength[i]) {
 			if (!i)
-				*p = ecc[i];
-			else if (*p != ecc[i])
-				*p = ecc[i - 1];
+				*p = ecc_strength[i];
+			else if (*p != ecc_strength[i])
+				*p = ecc_strength[i - 1];
 			return;
 		}
 	}
 
-	*p = ecc[ARRAY_SIZE(ecc) - 1];
+	*p = ecc_strength[ecc->caps->num_ecc_strength - 1];
 }
 EXPORT_SYMBOL(mtk_ecc_adjust_strength);
 
+static const struct mtk_ecc_caps mtk_ecc_caps_mt2701 = {
+	.err_mask = 0x3f,
+	.ecc_strength = ecc_strength_mt2701,
+	.num_ecc_strength = 20,
+	.encode_parity_reg0 = 0x10,
+	.pg_irq_sel = 0,
+};
+
+static const struct mtk_ecc_caps mtk_ecc_caps_mt2712 = {
+	.err_mask = 0x7f,
+	.ecc_strength = ecc_strength_mt2712,
+	.num_ecc_strength = 23,
+	.encode_parity_reg0 = 0x300,
+	.pg_irq_sel = 1,
+};
+
+static const struct of_device_id mtk_ecc_dt_match[] = {
+	{
+		.compatible = "mediatek,mt2701-ecc",
+		.data = &mtk_ecc_caps_mt2701,
+	}, {
+		.compatible = "mediatek,mt2712-ecc",
+		.data = &mtk_ecc_caps_mt2712,
+	},
+	{},
+};
+
 static int mtk_ecc_probe(struct platform_device *pdev)
 {
 	struct device *dev = &pdev->dev;
 	struct mtk_ecc *ecc;
 	struct resource *res;
+	const struct of_device_id *of_ecc_id = NULL;
+	u32 max_eccdata_size;
 	int irq, ret;
 
 	ecc = devm_kzalloc(dev, sizeof(*ecc), GFP_KERNEL);
 	if (!ecc)
 		return -ENOMEM;
 
+	of_ecc_id = of_match_device(mtk_ecc_dt_match, &pdev->dev);
+	if (!of_ecc_id)
+		return -ENODEV;
+
+	ecc->caps = of_ecc_id->data;
+
+	max_eccdata_size = ecc->caps->num_ecc_strength - 1;
+	max_eccdata_size = ecc->caps->ecc_strength[max_eccdata_size];
+	max_eccdata_size = (max_eccdata_size * ECC_PARITY_BITS + 7) >> 3;
+	max_eccdata_size = round_up(max_eccdata_size, 4);
+	ecc->eccdata = devm_kzalloc(dev, max_eccdata_size, GFP_KERNEL);
+	if (!ecc->eccdata)
+		return -ENOMEM;
+
 	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
 	ecc->regs = devm_ioremap_resource(dev, res);
 	if (IS_ERR(ecc->regs)) {
@@ -500,19 +509,12 @@ static int mtk_ecc_resume(struct device *dev)
 		return ret;
 	}
 
-	mtk_ecc_hw_init(ecc);
-
 	return 0;
 }
 
 static SIMPLE_DEV_PM_OPS(mtk_ecc_pm_ops, mtk_ecc_suspend, mtk_ecc_resume);
 #endif
 
-static const struct of_device_id mtk_ecc_dt_match[] = {
-	{ .compatible = "mediatek,mt2701-ecc" },
-	{},
-};
-
 MODULE_DEVICE_TABLE(of, mtk_ecc_dt_match);
 
 static struct platform_driver mtk_ecc_driver = {
diff --git a/drivers/mtd/nand/mtk_ecc.h b/drivers/mtd/nand/mtk_ecc.h
index cbeba5cd1c13..d245c14f1b80 100644
--- a/drivers/mtd/nand/mtk_ecc.h
+++ b/drivers/mtd/nand/mtk_ecc.h
@@ -42,7 +42,7 @@ void mtk_ecc_get_stats(struct mtk_ecc *, struct mtk_ecc_stats *, int);
 int mtk_ecc_wait_done(struct mtk_ecc *, enum mtk_ecc_operation);
 int mtk_ecc_enable(struct mtk_ecc *, struct mtk_ecc_config *);
 void mtk_ecc_disable(struct mtk_ecc *);
-void mtk_ecc_adjust_strength(u32 *);
+void mtk_ecc_adjust_strength(struct mtk_ecc *ecc, u32 *p);
 
 struct mtk_ecc *of_mtk_ecc_get(struct device_node *);
 void mtk_ecc_release(struct mtk_ecc *);
diff --git a/drivers/mtd/nand/mtk_nand.c b/drivers/mtd/nand/mtk_nand.c
index 6c517c682939..f7ae99464375 100644
--- a/drivers/mtd/nand/mtk_nand.c
+++ b/drivers/mtd/nand/mtk_nand.c
@@ -24,6 +24,7 @@
 #include <linux/module.h>
 #include <linux/iopoll.h>
 #include <linux/of.h>
+#include <linux/of_device.h>
 #include "mtk_ecc.h"
 
 /* NAND controller register definition */
@@ -38,23 +39,6 @@
 #define NFI_PAGEFMT		(0x04)
 #define		PAGEFMT_FDM_ECC_SHIFT	(12)
 #define		PAGEFMT_FDM_SHIFT	(8)
-#define		PAGEFMT_SPARE_16	(0)
-#define		PAGEFMT_SPARE_26	(1)
-#define		PAGEFMT_SPARE_27	(2)
-#define		PAGEFMT_SPARE_28	(3)
-#define		PAGEFMT_SPARE_32	(4)
-#define		PAGEFMT_SPARE_36	(5)
-#define		PAGEFMT_SPARE_40	(6)
-#define		PAGEFMT_SPARE_44	(7)
-#define		PAGEFMT_SPARE_48	(8)
-#define		PAGEFMT_SPARE_49	(9)
-#define		PAGEFMT_SPARE_50	(0xa)
-#define		PAGEFMT_SPARE_51	(0xb)
-#define		PAGEFMT_SPARE_52	(0xc)
-#define		PAGEFMT_SPARE_62	(0xd)
-#define		PAGEFMT_SPARE_63	(0xe)
-#define		PAGEFMT_SPARE_64	(0xf)
-#define		PAGEFMT_SPARE_SHIFT	(4)
 #define		PAGEFMT_SEC_SEL_512	BIT(2)
 #define		PAGEFMT_512_2K		(0)
 #define		PAGEFMT_2K_4K		(1)
@@ -115,6 +99,17 @@
 #define MTK_RESET_TIMEOUT	(1000000)
 #define MTK_MAX_SECTOR		(16)
 #define MTK_NAND_MAX_NSELS	(2)
+#define MTK_NFC_MIN_SPARE	(16)
+#define ACCTIMING(tpoecs, tprecs, tc2r, tw2r, twh, twst, trlt) \
+	((tpoecs) << 28 | (tprecs) << 22 | (tc2r) << 16 | \
+	(tw2r) << 12 | (twh) << 8 | (twst) << 4 | (trlt))
+
+struct mtk_nfc_caps {
+	const u8 *spare_size;
+	u8 num_spare_size;
+	u8 pageformat_spare_shift;
+	u8 nfi_clk_div;
+};
 
 struct mtk_nfc_bad_mark_ctl {
 	void (*bm_swap)(struct mtd_info *, u8 *buf, int raw);
@@ -155,6 +150,7 @@ struct mtk_nfc {
 	struct mtk_ecc *ecc;
 
 	struct device *dev;
+	const struct mtk_nfc_caps *caps;
 	void __iomem *regs;
 
 	struct completion done;
@@ -163,6 +159,20 @@ struct mtk_nfc {
 	u8 *buffer;
 };
 
+/*
+ * supported spare size of each IP.
+ * order should be the same with the spare size bitfiled defination of
+ * register NFI_PAGEFMT.
+ */
+static const u8 spare_size_mt2701[] = {
+	16, 26, 27, 28, 32, 36, 40, 44,	48, 49, 50, 51, 52, 62, 63, 64
+};
+
+static const u8 spare_size_mt2712[] = {
+	16, 26, 27, 28, 32, 36, 40, 44, 48, 49, 50, 51, 52, 62, 61, 63, 64, 67,
+	74
+};
+
 static inline struct mtk_nfc_nand_chip *to_mtk_nand(struct nand_chip *nand)
 {
 	return container_of(nand, struct mtk_nfc_nand_chip, nand);
@@ -308,7 +318,7 @@ static int mtk_nfc_hw_runtime_config(struct mtd_info *mtd)
 	struct nand_chip *chip = mtd_to_nand(mtd);
 	struct mtk_nfc_nand_chip *mtk_nand = to_mtk_nand(chip);
 	struct mtk_nfc *nfc = nand_get_controller_data(chip);
-	u32 fmt, spare;
+	u32 fmt, spare, i;
 
 	if (!mtd->writesize)
 		return 0;
@@ -352,63 +362,21 @@ static int mtk_nfc_hw_runtime_config(struct mtd_info *mtd)
 	if (chip->ecc.size == 1024)
 		spare >>= 1;
 
-	switch (spare) {
-	case 16:
-		fmt |= (PAGEFMT_SPARE_16 << PAGEFMT_SPARE_SHIFT);
-		break;
-	case 26:
-		fmt |= (PAGEFMT_SPARE_26 << PAGEFMT_SPARE_SHIFT);
-		break;
-	case 27:
-		fmt |= (PAGEFMT_SPARE_27 << PAGEFMT_SPARE_SHIFT);
-		break;
-	case 28:
-		fmt |= (PAGEFMT_SPARE_28 << PAGEFMT_SPARE_SHIFT);
-		break;
-	case 32:
-		fmt |= (PAGEFMT_SPARE_32 << PAGEFMT_SPARE_SHIFT);
-		break;
-	case 36:
-		fmt |= (PAGEFMT_SPARE_36 << PAGEFMT_SPARE_SHIFT);
-		break;
-	case 40:
-		fmt |= (PAGEFMT_SPARE_40 << PAGEFMT_SPARE_SHIFT);
-		break;
-	case 44:
-		fmt |= (PAGEFMT_SPARE_44 << PAGEFMT_SPARE_SHIFT);
-		break;
-	case 48:
-		fmt |= (PAGEFMT_SPARE_48 << PAGEFMT_SPARE_SHIFT);
-		break;
-	case 49:
-		fmt |= (PAGEFMT_SPARE_49 << PAGEFMT_SPARE_SHIFT);
-		break;
-	case 50:
-		fmt |= (PAGEFMT_SPARE_50 << PAGEFMT_SPARE_SHIFT);
-		break;
-	case 51:
-		fmt |= (PAGEFMT_SPARE_51 << PAGEFMT_SPARE_SHIFT);
-		break;
-	case 52:
-		fmt |= (PAGEFMT_SPARE_52 << PAGEFMT_SPARE_SHIFT);
-		break;
-	case 62:
-		fmt |= (PAGEFMT_SPARE_62 << PAGEFMT_SPARE_SHIFT);
-		break;
-	case 63:
-		fmt |= (PAGEFMT_SPARE_63 << PAGEFMT_SPARE_SHIFT);
-		break;
-	case 64:
-		fmt |= (PAGEFMT_SPARE_64 << PAGEFMT_SPARE_SHIFT);
-		break;
-	default:
-		dev_err(nfc->dev, "invalid spare per sector %d\n", spare);
+	for (i = 0; i < nfc->caps->num_spare_size; i++) {
+		if (nfc->caps->spare_size[i] == spare)
+			break;
+	}
+
+	if (i == nfc->caps->num_spare_size) {
+		dev_err(nfc->dev, "invalid spare size %d\n", spare);
 		return -EINVAL;
 	}
 
+	fmt |= i << nfc->caps->pageformat_spare_shift;
+
 	fmt |= mtk_nand->fdm.reg_size << PAGEFMT_FDM_SHIFT;
 	fmt |= mtk_nand->fdm.ecc_size << PAGEFMT_FDM_ECC_SHIFT;
-	nfi_writew(nfc, fmt, NFI_PAGEFMT);
+	nfi_writel(nfc, fmt, NFI_PAGEFMT);
 
 	nfc->ecc_cfg.strength = chip->ecc.strength;
 	nfc->ecc_cfg.len = chip->ecc.size + mtk_nand->fdm.ecc_size;
@@ -531,6 +499,74 @@ static void mtk_nfc_write_buf(struct mtd_info *mtd, const u8 *buf, int len)
 		mtk_nfc_write_byte(mtd, buf[i]);
 }
 
+static int mtk_nfc_setup_data_interface(struct mtd_info *mtd, int csline,
+					const struct nand_data_interface *conf)
+{
+	struct mtk_nfc *nfc = nand_get_controller_data(mtd_to_nand(mtd));
+	const struct nand_sdr_timings *timings;
+	u32 rate, tpoecs, tprecs, tc2r, tw2r, twh, twst, trlt;
+
+	timings = nand_get_sdr_timings(conf);
+	if (IS_ERR(timings))
+		return -ENOTSUPP;
+
+	if (csline == NAND_DATA_IFACE_CHECK_ONLY)
+		return 0;
+
+	rate = clk_get_rate(nfc->clk.nfi_clk);
+	/* There is a frequency divider in some IPs */
+	rate /= nfc->caps->nfi_clk_div;
+
+	/* turn clock rate into KHZ */
+	rate /= 1000;
+
+	tpoecs = max(timings->tALH_min, timings->tCLH_min) / 1000;
+	tpoecs = DIV_ROUND_UP(tpoecs * rate, 1000000);
+	tpoecs &= 0xf;
+
+	tprecs = max(timings->tCLS_min, timings->tALS_min) / 1000;
+	tprecs = DIV_ROUND_UP(tprecs * rate, 1000000);
+	tprecs &= 0x3f;
+
+	/* sdr interface has no tCR which means CE# low to RE# low */
+	tc2r = 0;
+
+	tw2r = timings->tWHR_min / 1000;
+	tw2r = DIV_ROUND_UP(tw2r * rate, 1000000);
+	tw2r = DIV_ROUND_UP(tw2r - 1, 2);
+	tw2r &= 0xf;
+
+	twh = max(timings->tREH_min, timings->tWH_min) / 1000;
+	twh = DIV_ROUND_UP(twh * rate, 1000000) - 1;
+	twh &= 0xf;
+
+	twst = timings->tWP_min / 1000;
+	twst = DIV_ROUND_UP(twst * rate, 1000000) - 1;
+	twst &= 0xf;
+
+	trlt = max(timings->tREA_max, timings->tRP_min) / 1000;
+	trlt = DIV_ROUND_UP(trlt * rate, 1000000) - 1;
+	trlt &= 0xf;
+
+	/*
+	 * ACCON: access timing control register
+	 * -------------------------------------
+	 * 31:28: tpoecs, minimum required time for CS post pulling down after
+	 *        accessing the device
+	 * 27:22: tprecs, minimum required time for CS pre pulling down before
+	 *        accessing the device
+	 * 21:16: tc2r, minimum required time from NCEB low to NREB low
+	 * 15:12: tw2r, minimum required time from NWEB high to NREB low.
+	 * 11:08: twh, write enable hold time
+	 * 07:04: twst, write wait states
+	 * 03:00: trlt, read wait states
+	 */
+	trlt = ACCTIMING(tpoecs, tprecs, tc2r, tw2r, twh, twst, trlt);
+	nfi_writel(nfc, trlt, NFI_ACCCON);
+
+	return 0;
+}
+
 static int mtk_nfc_sector_encode(struct nand_chip *chip, u8 *data)
 {
 	struct mtk_nfc *nfc = nand_get_controller_data(chip);
@@ -988,28 +1024,13 @@ static int mtk_nfc_read_oob_std(struct mtd_info *mtd, struct nand_chip *chip,
 static inline void mtk_nfc_hw_init(struct mtk_nfc *nfc)
 {
 	/*
-	 * ACCON: access timing control register
-	 * -------------------------------------
-	 * 31:28: minimum required time for CS post pulling down after accessing
-	 *	the device
-	 * 27:22: minimum required time for CS pre pulling down before accessing
-	 *	the device
-	 * 21:16: minimum required time from NCEB low to NREB low
-	 * 15:12: minimum required time from NWEB high to NREB low.
-	 * 11:08: write enable hold time
-	 * 07:04: write wait states
-	 * 03:00: read wait states
-	 */
-	nfi_writel(nfc, 0x10804211, NFI_ACCCON);
-
-	/*
 	 * CNRNB: nand ready/busy register
 	 * -------------------------------
 	 * 7:4: timeout register for polling the NAND busy/ready signal
 	 * 0  : poll the status of the busy/ready signal after [7:4]*16 cycles.
 	 */
 	nfi_writew(nfc, 0xf1, NFI_CNRNB);
-	nfi_writew(nfc, PAGEFMT_8K_16K, NFI_PAGEFMT);
+	nfi_writel(nfc, PAGEFMT_8K_16K, NFI_PAGEFMT);
 
 	mtk_nfc_hw_reset(nfc);
 
@@ -1131,12 +1152,12 @@ static void mtk_nfc_set_bad_mark_ctl(struct mtk_nfc_bad_mark_ctl *bm_ctl,
 	}
 }
 
-static void mtk_nfc_set_spare_per_sector(u32 *sps, struct mtd_info *mtd)
+static int mtk_nfc_set_spare_per_sector(u32 *sps, struct mtd_info *mtd)
 {
 	struct nand_chip *nand = mtd_to_nand(mtd);
-	u32 spare[] = {16, 26, 27, 28, 32, 36, 40, 44,
-			48, 49, 50, 51, 52, 62, 63, 64};
-	u32 eccsteps, i;
+	struct mtk_nfc *nfc = nand_get_controller_data(nand);
+	const u8 *spare = nfc->caps->spare_size;
+	u32 eccsteps, i, closest_spare = 0;
 
 	eccsteps = mtd->writesize / nand->ecc.size;
 	*sps = mtd->oobsize / eccsteps;
@@ -1144,28 +1165,31 @@ static void mtk_nfc_set_spare_per_sector(u32 *sps, struct mtd_info *mtd)
 	if (nand->ecc.size == 1024)
 		*sps >>= 1;
 
-	for (i = 0; i < ARRAY_SIZE(spare); i++) {
-		if (*sps <= spare[i]) {
-			if (!i)
-				*sps = spare[i];
-			else if (*sps != spare[i])
-				*sps = spare[i - 1];
-			break;
+	if (*sps < MTK_NFC_MIN_SPARE)
+		return -EINVAL;
+
+	for (i = 0; i < nfc->caps->num_spare_size; i++) {
+		if (*sps >= spare[i] && spare[i] >= spare[closest_spare]) {
+			closest_spare = i;
+			if (*sps == spare[i])
+				break;
 		}
 	}
 
-	if (i >= ARRAY_SIZE(spare))
-		*sps = spare[ARRAY_SIZE(spare) - 1];
+	*sps = spare[closest_spare];
 
 	if (nand->ecc.size == 1024)
 		*sps <<= 1;
+
+	return 0;
 }
 
 static int mtk_nfc_ecc_init(struct device *dev, struct mtd_info *mtd)
 {
 	struct nand_chip *nand = mtd_to_nand(mtd);
+	struct mtk_nfc *nfc = nand_get_controller_data(nand);
 	u32 spare;
-	int free;
+	int free, ret;
 
 	/* support only ecc hw mode */
 	if (nand->ecc.mode != NAND_ECC_HW) {
@@ -1194,7 +1218,9 @@ static int mtk_nfc_ecc_init(struct device *dev, struct mtd_info *mtd)
 			nand->ecc.size = 1024;
 		}
 
-		mtk_nfc_set_spare_per_sector(&spare, mtd);
+		ret = mtk_nfc_set_spare_per_sector(&spare, mtd);
+		if (ret)
+			return ret;
 
 		/* calculate oob bytes except ecc parity data */
 		free = ((nand->ecc.strength * ECC_PARITY_BITS) + 7) >> 3;
@@ -1214,7 +1240,7 @@ static int mtk_nfc_ecc_init(struct device *dev, struct mtd_info *mtd)
 		}
 	}
 
-	mtk_ecc_adjust_strength(&nand->ecc.strength);
+	mtk_ecc_adjust_strength(nfc->ecc, &nand->ecc.strength);
 
 	dev_info(dev, "eccsize %d eccstrength %d\n",
 		 nand->ecc.size, nand->ecc.strength);
@@ -1271,6 +1297,7 @@ static int mtk_nfc_nand_chip_init(struct device *dev, struct mtk_nfc *nfc,
 	nand->read_byte = mtk_nfc_read_byte;
 	nand->read_buf = mtk_nfc_read_buf;
 	nand->cmd_ctrl = mtk_nfc_cmd_ctrl;
+	nand->setup_data_interface = mtk_nfc_setup_data_interface;
 
 	/* set default mode in case dt entry is missing */
 	nand->ecc.mode = NAND_ECC_HW;
@@ -1312,7 +1339,10 @@ static int mtk_nfc_nand_chip_init(struct device *dev, struct mtk_nfc *nfc,
 		return -EINVAL;
 	}
 
-	mtk_nfc_set_spare_per_sector(&chip->spare_per_sector, mtd);
+	ret = mtk_nfc_set_spare_per_sector(&chip->spare_per_sector, mtd);
+	if (ret)
+		return ret;
+
 	mtk_nfc_set_fdm(&chip->fdm, mtd);
 	mtk_nfc_set_bad_mark_ctl(&chip->bad_mark, mtd);
 
@@ -1354,12 +1384,39 @@ static int mtk_nfc_nand_chips_init(struct device *dev, struct mtk_nfc *nfc)
 	return 0;
 }
 
+static const struct mtk_nfc_caps mtk_nfc_caps_mt2701 = {
+	.spare_size = spare_size_mt2701,
+	.num_spare_size = 16,
+	.pageformat_spare_shift = 4,
+	.nfi_clk_div = 1,
+};
+
+static const struct mtk_nfc_caps mtk_nfc_caps_mt2712 = {
+	.spare_size = spare_size_mt2712,
+	.num_spare_size = 19,
+	.pageformat_spare_shift = 16,
+	.nfi_clk_div = 2,
+};
+
+static const struct of_device_id mtk_nfc_id_table[] = {
+	{
+		.compatible = "mediatek,mt2701-nfc",
+		.data = &mtk_nfc_caps_mt2701,
+	}, {
+		.compatible = "mediatek,mt2712-nfc",
+		.data = &mtk_nfc_caps_mt2712,
+	},
+	{}
+};
+MODULE_DEVICE_TABLE(of, mtk_nfc_id_table);
+
 static int mtk_nfc_probe(struct platform_device *pdev)
 {
 	struct device *dev = &pdev->dev;
 	struct device_node *np = dev->of_node;
 	struct mtk_nfc *nfc;
 	struct resource *res;
+	const struct of_device_id *of_nfc_id = NULL;
 	int ret, irq;
 
 	nfc = devm_kzalloc(dev, sizeof(*nfc), GFP_KERNEL);
@@ -1423,6 +1480,14 @@ static int mtk_nfc_probe(struct platform_device *pdev)
 		goto clk_disable;
 	}
 
+	of_nfc_id = of_match_device(mtk_nfc_id_table, &pdev->dev);
+	if (!of_nfc_id) {
+		ret = -ENODEV;
+		goto clk_disable;
+	}
+
+	nfc->caps = of_nfc_id->data;
+
 	platform_set_drvdata(pdev, nfc);
 
 	ret = mtk_nfc_nand_chips_init(dev, nfc);
@@ -1485,8 +1550,6 @@ static int mtk_nfc_resume(struct device *dev)
 	if (ret)
 		return ret;
 
-	mtk_nfc_hw_init(nfc);
-
 	/* reset NAND chip if VCC was powered off */
 	list_for_each_entry(chip, &nfc->chips, node) {
 		nand = &chip->nand;
@@ -1503,12 +1566,6 @@ static int mtk_nfc_resume(struct device *dev)
 static SIMPLE_DEV_PM_OPS(mtk_nfc_pm_ops, mtk_nfc_suspend, mtk_nfc_resume);
 #endif
 
-static const struct of_device_id mtk_nfc_id_table[] = {
-	{ .compatible = "mediatek,mt2701-nfc" },
-	{}
-};
-MODULE_DEVICE_TABLE(of, mtk_nfc_id_table);
-
 static struct platform_driver mtk_nfc_driver = {
 	.probe  = mtk_nfc_probe,
 	.remove = mtk_nfc_remove,
diff --git a/drivers/mtd/nand/mxc_nand.c b/drivers/mtd/nand/mxc_nand.c
index 61ca020c5272..a764d5ca7536 100644
--- a/drivers/mtd/nand/mxc_nand.c
+++ b/drivers/mtd/nand/mxc_nand.c
@@ -152,9 +152,8 @@ struct mxc_nand_devtype_data {
 	void (*select_chip)(struct mtd_info *mtd, int chip);
 	int (*correct_data)(struct mtd_info *mtd, u_char *dat,
 			u_char *read_ecc, u_char *calc_ecc);
-	int (*setup_data_interface)(struct mtd_info *mtd,
-				    const struct nand_data_interface *conf,
-				    bool check_only);
+	int (*setup_data_interface)(struct mtd_info *mtd, int csline,
+				    const struct nand_data_interface *conf);
 
 	/*
 	 * On i.MX21 the CONFIG2:INT bit cannot be read if interrupts are masked
@@ -1015,9 +1014,8 @@ static void preset_v1(struct mtd_info *mtd)
 	writew(0x4, NFC_V1_V2_WRPROT);
 }
 
-static int mxc_nand_v2_setup_data_interface(struct mtd_info *mtd,
-					const struct nand_data_interface *conf,
-					bool check_only)
+static int mxc_nand_v2_setup_data_interface(struct mtd_info *mtd, int csline,
+					const struct nand_data_interface *conf)
 {
 	struct nand_chip *nand_chip = mtd_to_nand(mtd);
 	struct mxc_nand_host *host = nand_get_controller_data(nand_chip);
@@ -1075,7 +1073,7 @@ static int mxc_nand_v2_setup_data_interface(struct mtd_info *mtd,
 		return -EINVAL;
 	}
 
-	if (check_only)
+	if (csline == NAND_DATA_IFACE_CHECK_ONLY)
 		return 0;
 
 	ret = clk_set_rate(host->clk, rate);
diff --git a/drivers/mtd/nand/nand_base.c b/drivers/mtd/nand/nand_base.c
index bf8486c406d3..c6c18b82f8f4 100644
--- a/drivers/mtd/nand/nand_base.c
+++ b/drivers/mtd/nand/nand_base.c
@@ -65,8 +65,14 @@ static int nand_ooblayout_ecc_sp(struct mtd_info *mtd, int section,
 
 	if (!section) {
 		oobregion->offset = 0;
-		oobregion->length = 4;
+		if (mtd->oobsize == 16)
+			oobregion->length = 4;
+		else
+			oobregion->length = 3;
 	} else {
+		if (mtd->oobsize == 8)
+			return -ERANGE;
+
 		oobregion->offset = 6;
 		oobregion->length = ecc->total - 4;
 	}
@@ -755,6 +761,16 @@ static void nand_command(struct mtd_info *mtd, unsigned int command,
 		return;
 
 		/* This applies to read commands */
+	case NAND_CMD_READ0:
+		/*
+		 * READ0 is sometimes used to exit GET STATUS mode. When this
+		 * is the case no address cycles are requested, and we can use
+		 * this information to detect that we should not wait for the
+		 * device to be ready.
+		 */
+		if (column == -1 && page_addr == -1)
+			return;
+
 	default:
 		/*
 		 * If we don't have access to the busy pin, we apply the given
@@ -889,6 +905,15 @@ static void nand_command_lp(struct mtd_info *mtd, unsigned int command,
 		return;
 
 	case NAND_CMD_READ0:
+		/*
+		 * READ0 is sometimes used to exit GET STATUS mode. When this
+		 * is the case no address cycles are requested, and we can use
+		 * this information to detect that READSTART should not be
+		 * issued.
+		 */
+		if (column == -1 && page_addr == -1)
+			return;
+
 		chip->cmd_ctrl(mtd, NAND_CMD_READSTART,
 			       NAND_NCE | NAND_CLE | NAND_CTRL_CHANGE);
 		chip->cmd_ctrl(mtd, NAND_CMD_NONE,
@@ -1044,12 +1069,13 @@ static int nand_wait(struct mtd_info *mtd, struct nand_chip *chip)
 /**
  * nand_reset_data_interface - Reset data interface and timings
  * @chip: The NAND chip
+ * @chipnr: Internal die id
  *
  * Reset the Data interface and timings to ONFI mode 0.
  *
  * Returns 0 for success or negative error code otherwise.
  */
-static int nand_reset_data_interface(struct nand_chip *chip)
+static int nand_reset_data_interface(struct nand_chip *chip, int chipnr)
 {
 	struct mtd_info *mtd = nand_to_mtd(chip);
 	const struct nand_data_interface *conf;
@@ -1073,7 +1099,7 @@ static int nand_reset_data_interface(struct nand_chip *chip)
 	 */
 
 	conf = nand_get_default_data_interface();
-	ret = chip->setup_data_interface(mtd, conf, false);
+	ret = chip->setup_data_interface(mtd, chipnr, conf);
 	if (ret)
 		pr_err("Failed to configure data interface to SDR timing mode 0\n");
 
@@ -1083,6 +1109,7 @@ static int nand_reset_data_interface(struct nand_chip *chip)
 /**
  * nand_setup_data_interface - Setup the best data interface and timings
  * @chip: The NAND chip
+ * @chipnr: Internal die id
  *
  * Find and configure the best data interface and NAND timings supported by
  * the chip and the driver.
@@ -1092,7 +1119,7 @@ static int nand_reset_data_interface(struct nand_chip *chip)
  *
  * Returns 0 for success or negative error code otherwise.
  */
-static int nand_setup_data_interface(struct nand_chip *chip)
+static int nand_setup_data_interface(struct nand_chip *chip, int chipnr)
 {
 	struct mtd_info *mtd = nand_to_mtd(chip);
 	int ret;
@@ -1104,7 +1131,9 @@ static int nand_setup_data_interface(struct nand_chip *chip)
 	 * Ensure the timing mode has been changed on the chip side
 	 * before changing timings on the controller side.
 	 */
-	if (chip->onfi_version) {
+	if (chip->onfi_version &&
+	    (le16_to_cpu(chip->onfi_params.opt_cmd) &
+	     ONFI_OPT_CMD_SET_GET_FEATURES)) {
 		u8 tmode_param[ONFI_SUBFEATURE_PARAM_LEN] = {
 			chip->onfi_timing_mode_default,
 		};
@@ -1116,7 +1145,7 @@ static int nand_setup_data_interface(struct nand_chip *chip)
 			goto err;
 	}
 
-	ret = chip->setup_data_interface(mtd, chip->data_interface, false);
+	ret = chip->setup_data_interface(mtd, chipnr, chip->data_interface);
 err:
 	return ret;
 }
@@ -1167,8 +1196,10 @@ static int nand_init_data_interface(struct nand_chip *chip)
 		if (ret)
 			continue;
 
-		ret = chip->setup_data_interface(mtd, chip->data_interface,
-						 true);
+		/* Pass -1 to only */
+		ret = chip->setup_data_interface(mtd,
+						 NAND_DATA_IFACE_CHECK_ONLY,
+						 chip->data_interface);
 		if (!ret) {
 			chip->onfi_timing_mode_default = mode;
 			break;
@@ -1195,7 +1226,7 @@ int nand_reset(struct nand_chip *chip, int chipnr)
 	struct mtd_info *mtd = nand_to_mtd(chip);
 	int ret;
 
-	ret = nand_reset_data_interface(chip);
+	ret = nand_reset_data_interface(chip, chipnr);
 	if (ret)
 		return ret;
 
@@ -1208,7 +1239,7 @@ int nand_reset(struct nand_chip *chip, int chipnr)
 	chip->select_chip(mtd, -1);
 
 	chip->select_chip(mtd, chipnr);
-	ret = nand_setup_data_interface(chip);
+	ret = nand_setup_data_interface(chip, chipnr);
 	chip->select_chip(mtd, -1);
 	if (ret)
 		return ret;
@@ -1424,7 +1455,10 @@ static int nand_check_erased_buf(void *buf, int len, int bitflips_threshold)
 
 	for (; len >= sizeof(long);
 	     len -= sizeof(long), bitmap += sizeof(long)) {
-		weight = hweight_long(*((unsigned long *)bitmap));
+		unsigned long d = *((unsigned long *)bitmap);
+		if (d == ~0UL)
+			continue;
+		weight = hweight_long(d);
 		bitflips += BITS_PER_LONG - weight;
 		if (unlikely(bitflips > bitflips_threshold))
 			return -EBADMSG;
@@ -1527,14 +1561,15 @@ EXPORT_SYMBOL(nand_check_erased_ecc_chunk);
  *
  * Not for syndrome calculating ECC controllers, which use a special oob layout.
  */
-static int nand_read_page_raw(struct mtd_info *mtd, struct nand_chip *chip,
-			      uint8_t *buf, int oob_required, int page)
+int nand_read_page_raw(struct mtd_info *mtd, struct nand_chip *chip,
+		       uint8_t *buf, int oob_required, int page)
 {
 	chip->read_buf(mtd, buf, mtd->writesize);
 	if (oob_required)
 		chip->read_buf(mtd, chip->oob_poi, mtd->oobsize);
 	return 0;
 }
+EXPORT_SYMBOL(nand_read_page_raw);
 
 /**
  * nand_read_page_raw_syndrome - [INTERN] read raw page data without ecc
@@ -2472,8 +2507,8 @@ static int nand_read_oob(struct mtd_info *mtd, loff_t from,
  *
  * Not for syndrome calculating ECC controllers, which use a special oob layout.
  */
-static int nand_write_page_raw(struct mtd_info *mtd, struct nand_chip *chip,
-			       const uint8_t *buf, int oob_required, int page)
+int nand_write_page_raw(struct mtd_info *mtd, struct nand_chip *chip,
+			const uint8_t *buf, int oob_required, int page)
 {
 	chip->write_buf(mtd, buf, mtd->writesize);
 	if (oob_required)
@@ -2481,6 +2516,7 @@ static int nand_write_page_raw(struct mtd_info *mtd, struct nand_chip *chip,
 
 	return 0;
 }
+EXPORT_SYMBOL(nand_write_page_raw);
 
 /**
  * nand_write_page_raw_syndrome - [INTERN] raw page write function
@@ -2713,12 +2749,11 @@ static int nand_write_page_syndrome(struct mtd_info *mtd,
  * @buf: the data to write
  * @oob_required: must write chip->oob_poi to OOB
  * @page: page number to write
- * @cached: cached programming
  * @raw: use _raw version of write_page
  */
 static int nand_write_page(struct mtd_info *mtd, struct nand_chip *chip,
 		uint32_t offset, int data_len, const uint8_t *buf,
-		int oob_required, int page, int cached, int raw)
+		int oob_required, int page, int raw)
 {
 	int status, subpage;
 
@@ -2744,30 +2779,12 @@ static int nand_write_page(struct mtd_info *mtd, struct nand_chip *chip,
 	if (status < 0)
 		return status;
 
-	/*
-	 * Cached progamming disabled for now. Not sure if it's worth the
-	 * trouble. The speed gain is not very impressive. (2.3->2.6Mib/s).
-	 */
-	cached = 0;
-
-	if (!cached || !NAND_HAS_CACHEPROG(chip)) {
+	if (nand_standard_page_accessors(&chip->ecc)) {
+		chip->cmdfunc(mtd, NAND_CMD_PAGEPROG, -1, -1);
 
-		if (nand_standard_page_accessors(&chip->ecc))
-			chip->cmdfunc(mtd, NAND_CMD_PAGEPROG, -1, -1);
 		status = chip->waitfunc(mtd, chip);
-		/*
-		 * See if operation failed and additional status checks are
-		 * available.
-		 */
-		if ((status & NAND_STATUS_FAIL) && (chip->errstat))
-			status = chip->errstat(mtd, chip, FL_WRITING, status,
-					       page);
-
 		if (status & NAND_STATUS_FAIL)
 			return -EIO;
-	} else {
-		chip->cmdfunc(mtd, NAND_CMD_CACHEDPROG, -1, -1);
-		status = chip->waitfunc(mtd, chip);
 	}
 
 	return 0;
@@ -2875,7 +2892,6 @@ static int nand_do_write_ops(struct mtd_info *mtd, loff_t to,
 
 	while (1) {
 		int bytes = mtd->writesize;
-		int cached = writelen > bytes && page != blockmask;
 		uint8_t *wbuf = buf;
 		int use_bufpoi;
 		int part_pagewr = (column || writelen < mtd->writesize);
@@ -2893,7 +2909,6 @@ static int nand_do_write_ops(struct mtd_info *mtd, loff_t to,
 		if (use_bufpoi) {
 			pr_debug("%s: using write bounce buffer for buf@%p\n",
 					 __func__, buf);
-			cached = 0;
 			if (part_pagewr)
 				bytes = min_t(int, bytes - column, writelen);
 			chip->pagebuf = -1;
@@ -2912,7 +2927,7 @@ static int nand_do_write_ops(struct mtd_info *mtd, loff_t to,
 		}
 
 		ret = nand_write_page(mtd, chip, column, bytes, wbuf,
-				      oob_required, page, cached,
+				      oob_required, page,
 				      (ops->mode == MTD_OPS_RAW));
 		if (ret)
 			break;
@@ -3228,14 +3243,6 @@ int nand_erase_nand(struct mtd_info *mtd, struct erase_info *instr,
 
 		status = chip->erase(mtd, page & chip->pagemask);
 
-		/*
-		 * See if operation failed and additional status checks are
-		 * available
-		 */
-		if ((status & NAND_STATUS_FAIL) && (chip->errstat))
-			status = chip->errstat(mtd, chip, FL_ERASING,
-					       status, page);
-
 		/* See if block erase succeeded */
 		if (status & NAND_STATUS_FAIL) {
 			pr_debug("%s: failed erase, page 0x%08x\n",
@@ -3422,6 +3429,25 @@ static int nand_onfi_get_features(struct mtd_info *mtd, struct nand_chip *chip,
 }
 
 /**
+ * nand_onfi_get_set_features_notsupp - set/get features stub returning
+ *					-ENOTSUPP
+ * @mtd: MTD device structure
+ * @chip: nand chip info structure
+ * @addr: feature address.
+ * @subfeature_param: the subfeature parameters, a four bytes array.
+ *
+ * Should be used by NAND controller drivers that do not support the SET/GET
+ * FEATURES operations.
+ */
+int nand_onfi_get_set_features_notsupp(struct mtd_info *mtd,
+				       struct nand_chip *chip, int addr,
+				       u8 *subfeature_param)
+{
+	return -ENOTSUPP;
+}
+EXPORT_SYMBOL(nand_onfi_get_set_features_notsupp);
+
+/**
  * nand_suspend - [MTD Interface] Suspend the NAND flash
  * @mtd: MTD device structure
  */
@@ -4180,6 +4206,7 @@ static const char * const nand_ecc_modes[] = {
 	[NAND_ECC_HW]		= "hw",
 	[NAND_ECC_HW_SYNDROME]	= "hw_syndrome",
 	[NAND_ECC_HW_OOB_FIRST]	= "hw_oob_first",
+	[NAND_ECC_ON_DIE]	= "on-die",
 };
 
 static int of_get_nand_ecc_mode(struct device_node *np)
@@ -4374,7 +4401,7 @@ int nand_scan_ident(struct mtd_info *mtd, int maxchips,
 	 * For the other dies, nand_reset() will automatically switch to the
 	 * best mode for us.
 	 */
-	ret = nand_setup_data_interface(chip);
+	ret = nand_setup_data_interface(chip, 0);
 	if (ret)
 		goto err_nand_init;
 
@@ -4512,6 +4539,226 @@ static int nand_set_ecc_soft_ops(struct mtd_info *mtd)
 	}
 }
 
+/**
+ * nand_check_ecc_caps - check the sanity of preset ECC settings
+ * @chip: nand chip info structure
+ * @caps: ECC caps info structure
+ * @oobavail: OOB size that the ECC engine can use
+ *
+ * When ECC step size and strength are already set, check if they are supported
+ * by the controller and the calculated ECC bytes fit within the chip's OOB.
+ * On success, the calculated ECC bytes is set.
+ */
+int nand_check_ecc_caps(struct nand_chip *chip,
+			const struct nand_ecc_caps *caps, int oobavail)
+{
+	struct mtd_info *mtd = nand_to_mtd(chip);
+	const struct nand_ecc_step_info *stepinfo;
+	int preset_step = chip->ecc.size;
+	int preset_strength = chip->ecc.strength;
+	int nsteps, ecc_bytes;
+	int i, j;
+
+	if (WARN_ON(oobavail < 0))
+		return -EINVAL;
+
+	if (!preset_step || !preset_strength)
+		return -ENODATA;
+
+	nsteps = mtd->writesize / preset_step;
+
+	for (i = 0; i < caps->nstepinfos; i++) {
+		stepinfo = &caps->stepinfos[i];
+
+		if (stepinfo->stepsize != preset_step)
+			continue;
+
+		for (j = 0; j < stepinfo->nstrengths; j++) {
+			if (stepinfo->strengths[j] != preset_strength)
+				continue;
+
+			ecc_bytes = caps->calc_ecc_bytes(preset_step,
+							 preset_strength);
+			if (WARN_ON_ONCE(ecc_bytes < 0))
+				return ecc_bytes;
+
+			if (ecc_bytes * nsteps > oobavail) {
+				pr_err("ECC (step, strength) = (%d, %d) does not fit in OOB",
+				       preset_step, preset_strength);
+				return -ENOSPC;
+			}
+
+			chip->ecc.bytes = ecc_bytes;
+
+			return 0;
+		}
+	}
+
+	pr_err("ECC (step, strength) = (%d, %d) not supported on this controller",
+	       preset_step, preset_strength);
+
+	return -ENOTSUPP;
+}
+EXPORT_SYMBOL_GPL(nand_check_ecc_caps);
+
+/**
+ * nand_match_ecc_req - meet the chip's requirement with least ECC bytes
+ * @chip: nand chip info structure
+ * @caps: ECC engine caps info structure
+ * @oobavail: OOB size that the ECC engine can use
+ *
+ * If a chip's ECC requirement is provided, try to meet it with the least
+ * number of ECC bytes (i.e. with the largest number of OOB-free bytes).
+ * On success, the chosen ECC settings are set.
+ */
+int nand_match_ecc_req(struct nand_chip *chip,
+		       const struct nand_ecc_caps *caps, int oobavail)
+{
+	struct mtd_info *mtd = nand_to_mtd(chip);
+	const struct nand_ecc_step_info *stepinfo;
+	int req_step = chip->ecc_step_ds;
+	int req_strength = chip->ecc_strength_ds;
+	int req_corr, step_size, strength, nsteps, ecc_bytes, ecc_bytes_total;
+	int best_step, best_strength, best_ecc_bytes;
+	int best_ecc_bytes_total = INT_MAX;
+	int i, j;
+
+	if (WARN_ON(oobavail < 0))
+		return -EINVAL;
+
+	/* No information provided by the NAND chip */
+	if (!req_step || !req_strength)
+		return -ENOTSUPP;
+
+	/* number of correctable bits the chip requires in a page */
+	req_corr = mtd->writesize / req_step * req_strength;
+
+	for (i = 0; i < caps->nstepinfos; i++) {
+		stepinfo = &caps->stepinfos[i];
+		step_size = stepinfo->stepsize;
+
+		for (j = 0; j < stepinfo->nstrengths; j++) {
+			strength = stepinfo->strengths[j];
+
+			/*
+			 * If both step size and strength are smaller than the
+			 * chip's requirement, it is not easy to compare the
+			 * resulted reliability.
+			 */
+			if (step_size < req_step && strength < req_strength)
+				continue;
+
+			if (mtd->writesize % step_size)
+				continue;
+
+			nsteps = mtd->writesize / step_size;
+
+			ecc_bytes = caps->calc_ecc_bytes(step_size, strength);
+			if (WARN_ON_ONCE(ecc_bytes < 0))
+				continue;
+			ecc_bytes_total = ecc_bytes * nsteps;
+
+			if (ecc_bytes_total > oobavail ||
+			    strength * nsteps < req_corr)
+				continue;
+
+			/*
+			 * We assume the best is to meet the chip's requrement
+			 * with the least number of ECC bytes.
+			 */
+			if (ecc_bytes_total < best_ecc_bytes_total) {
+				best_ecc_bytes_total = ecc_bytes_total;
+				best_step = step_size;
+				best_strength = strength;
+				best_ecc_bytes = ecc_bytes;
+			}
+		}
+	}
+
+	if (best_ecc_bytes_total == INT_MAX)
+		return -ENOTSUPP;
+
+	chip->ecc.size = best_step;
+	chip->ecc.strength = best_strength;
+	chip->ecc.bytes = best_ecc_bytes;
+
+	return 0;
+}
+EXPORT_SYMBOL_GPL(nand_match_ecc_req);
+
+/**
+ * nand_maximize_ecc - choose the max ECC strength available
+ * @chip: nand chip info structure
+ * @caps: ECC engine caps info structure
+ * @oobavail: OOB size that the ECC engine can use
+ *
+ * Choose the max ECC strength that is supported on the controller, and can fit
+ * within the chip's OOB.  On success, the chosen ECC settings are set.
+ */
+int nand_maximize_ecc(struct nand_chip *chip,
+		      const struct nand_ecc_caps *caps, int oobavail)
+{
+	struct mtd_info *mtd = nand_to_mtd(chip);
+	const struct nand_ecc_step_info *stepinfo;
+	int step_size, strength, nsteps, ecc_bytes, corr;
+	int best_corr = 0;
+	int best_step = 0;
+	int best_strength, best_ecc_bytes;
+	int i, j;
+
+	if (WARN_ON(oobavail < 0))
+		return -EINVAL;
+
+	for (i = 0; i < caps->nstepinfos; i++) {
+		stepinfo = &caps->stepinfos[i];
+		step_size = stepinfo->stepsize;
+
+		/* If chip->ecc.size is already set, respect it */
+		if (chip->ecc.size && step_size != chip->ecc.size)
+			continue;
+
+		for (j = 0; j < stepinfo->nstrengths; j++) {
+			strength = stepinfo->strengths[j];
+
+			if (mtd->writesize % step_size)
+				continue;
+
+			nsteps = mtd->writesize / step_size;
+
+			ecc_bytes = caps->calc_ecc_bytes(step_size, strength);
+			if (WARN_ON_ONCE(ecc_bytes < 0))
+				continue;
+
+			if (ecc_bytes * nsteps > oobavail)
+				continue;
+
+			corr = strength * nsteps;
+
+			/*
+			 * If the number of correctable bits is the same,
+			 * bigger step_size has more reliability.
+			 */
+			if (corr > best_corr ||
+			    (corr == best_corr && step_size > best_step)) {
+				best_corr = corr;
+				best_step = step_size;
+				best_strength = strength;
+				best_ecc_bytes = ecc_bytes;
+			}
+		}
+	}
+
+	if (!best_corr)
+		return -ENOTSUPP;
+
+	chip->ecc.size = best_step;
+	chip->ecc.strength = best_strength;
+	chip->ecc.bytes = best_ecc_bytes;
+
+	return 0;
+}
+EXPORT_SYMBOL_GPL(nand_maximize_ecc);
+
 /*
  * Check if the chip configuration meet the datasheet requirements.
 
@@ -4733,6 +4980,18 @@ int nand_scan_tail(struct mtd_info *mtd)
 		}
 		break;
 
+	case NAND_ECC_ON_DIE:
+		if (!ecc->read_page || !ecc->write_page) {
+			WARN(1, "No ECC functions supplied; on-die ECC not possible\n");
+			ret = -EINVAL;
+			goto err_free;
+		}
+		if (!ecc->read_oob)
+			ecc->read_oob = nand_read_oob_std;
+		if (!ecc->write_oob)
+			ecc->write_oob = nand_write_oob_std;
+		break;
+
 	case NAND_ECC_NONE:
 		pr_warn("NAND_ECC_NONE selected by board driver. This is not recommended!\n");
 		ecc->read_page = nand_read_page_raw;
@@ -4773,6 +5032,11 @@ int nand_scan_tail(struct mtd_info *mtd)
 		goto err_free;
 	}
 	ecc->total = ecc->steps * ecc->bytes;
+	if (ecc->total > mtd->oobsize) {
+		WARN(1, "Total number of ECC bytes exceeded oobsize\n");
+		ret = -EINVAL;
+		goto err_free;
+	}
 
 	/*
 	 * The number of bytes available for a client to place data into
diff --git a/drivers/mtd/nand/nand_micron.c b/drivers/mtd/nand/nand_micron.c
index 877011069251..c30ab60f8e1b 100644
--- a/drivers/mtd/nand/nand_micron.c
+++ b/drivers/mtd/nand/nand_micron.c
@@ -17,6 +17,12 @@
 
 #include <linux/mtd/nand.h>
 
+/*
+ * Special Micron status bit that indicates when the block has been
+ * corrected by on-die ECC and should be rewritten
+ */
+#define NAND_STATUS_WRITE_RECOMMENDED	BIT(3)
+
 struct nand_onfi_vendor_micron {
 	u8 two_plane_read;
 	u8 read_cache;
@@ -66,9 +72,197 @@ static int micron_nand_onfi_init(struct nand_chip *chip)
 	return 0;
 }
 
+static int micron_nand_on_die_ooblayout_ecc(struct mtd_info *mtd, int section,
+					    struct mtd_oob_region *oobregion)
+{
+	if (section >= 4)
+		return -ERANGE;
+
+	oobregion->offset = (section * 16) + 8;
+	oobregion->length = 8;
+
+	return 0;
+}
+
+static int micron_nand_on_die_ooblayout_free(struct mtd_info *mtd, int section,
+					     struct mtd_oob_region *oobregion)
+{
+	if (section >= 4)
+		return -ERANGE;
+
+	oobregion->offset = (section * 16) + 2;
+	oobregion->length = 6;
+
+	return 0;
+}
+
+static const struct mtd_ooblayout_ops micron_nand_on_die_ooblayout_ops = {
+	.ecc = micron_nand_on_die_ooblayout_ecc,
+	.free = micron_nand_on_die_ooblayout_free,
+};
+
+static int micron_nand_on_die_ecc_setup(struct nand_chip *chip, bool enable)
+{
+	u8 feature[ONFI_SUBFEATURE_PARAM_LEN] = { 0, };
+
+	if (enable)
+		feature[0] |= ONFI_FEATURE_ON_DIE_ECC_EN;
+
+	return chip->onfi_set_features(nand_to_mtd(chip), chip,
+				       ONFI_FEATURE_ON_DIE_ECC, feature);
+}
+
+static int
+micron_nand_read_page_on_die_ecc(struct mtd_info *mtd, struct nand_chip *chip,
+				 uint8_t *buf, int oob_required,
+				 int page)
+{
+	int status;
+	int max_bitflips = 0;
+
+	micron_nand_on_die_ecc_setup(chip, true);
+
+	chip->cmdfunc(mtd, NAND_CMD_READ0, 0x00, page);
+	chip->cmdfunc(mtd, NAND_CMD_STATUS, -1, -1);
+	status = chip->read_byte(mtd);
+	if (status & NAND_STATUS_FAIL)
+		mtd->ecc_stats.failed++;
+	/*
+	 * The internal ECC doesn't tell us the number of bitflips
+	 * that have been corrected, but tells us if it recommends to
+	 * rewrite the block. If it's the case, then we pretend we had
+	 * a number of bitflips equal to the ECC strength, which will
+	 * hint the NAND core to rewrite the block.
+	 */
+	else if (status & NAND_STATUS_WRITE_RECOMMENDED)
+		max_bitflips = chip->ecc.strength;
+
+	chip->cmdfunc(mtd, NAND_CMD_READ0, -1, -1);
+
+	nand_read_page_raw(mtd, chip, buf, oob_required, page);
+
+	micron_nand_on_die_ecc_setup(chip, false);
+
+	return max_bitflips;
+}
+
+static int
+micron_nand_write_page_on_die_ecc(struct mtd_info *mtd, struct nand_chip *chip,
+				  const uint8_t *buf, int oob_required,
+				  int page)
+{
+	int status;
+
+	micron_nand_on_die_ecc_setup(chip, true);
+
+	chip->cmdfunc(mtd, NAND_CMD_SEQIN, 0x00, page);
+	nand_write_page_raw(mtd, chip, buf, oob_required, page);
+	chip->cmdfunc(mtd, NAND_CMD_PAGEPROG, -1, -1);
+	status = chip->waitfunc(mtd, chip);
+
+	micron_nand_on_die_ecc_setup(chip, false);
+
+	return status & NAND_STATUS_FAIL ? -EIO : 0;
+}
+
+static int
+micron_nand_read_page_raw_on_die_ecc(struct mtd_info *mtd,
+				     struct nand_chip *chip,
+				     uint8_t *buf, int oob_required,
+				     int page)
+{
+	chip->cmdfunc(mtd, NAND_CMD_READ0, 0x00, page);
+	nand_read_page_raw(mtd, chip, buf, oob_required, page);
+
+	return 0;
+}
+
+static int
+micron_nand_write_page_raw_on_die_ecc(struct mtd_info *mtd,
+				      struct nand_chip *chip,
+				      const uint8_t *buf, int oob_required,
+				      int page)
+{
+	int status;
+
+	chip->cmdfunc(mtd, NAND_CMD_SEQIN, 0x00, page);
+	nand_write_page_raw(mtd, chip, buf, oob_required, page);
+	chip->cmdfunc(mtd, NAND_CMD_PAGEPROG, -1, -1);
+	status = chip->waitfunc(mtd, chip);
+
+	return status & NAND_STATUS_FAIL ? -EIO : 0;
+}
+
+enum {
+	/* The NAND flash doesn't support on-die ECC */
+	MICRON_ON_DIE_UNSUPPORTED,
+
+	/*
+	 * The NAND flash supports on-die ECC and it can be
+	 * enabled/disabled by a set features command.
+	 */
+	MICRON_ON_DIE_SUPPORTED,
+
+	/*
+	 * The NAND flash supports on-die ECC, and it cannot be
+	 * disabled.
+	 */
+	MICRON_ON_DIE_MANDATORY,
+};
+
+/*
+ * Try to detect if the NAND support on-die ECC. To do this, we enable
+ * the feature, and read back if it has been enabled as expected. We
+ * also check if it can be disabled, because some Micron NANDs do not
+ * allow disabling the on-die ECC and we don't support such NANDs for
+ * now.
+ *
+ * This function also has the side effect of disabling on-die ECC if
+ * it had been left enabled by the firmware/bootloader.
+ */
+static int micron_supports_on_die_ecc(struct nand_chip *chip)
+{
+	u8 feature[ONFI_SUBFEATURE_PARAM_LEN] = { 0, };
+	int ret;
+
+	if (chip->onfi_version == 0)
+		return MICRON_ON_DIE_UNSUPPORTED;
+
+	if (chip->bits_per_cell != 1)
+		return MICRON_ON_DIE_UNSUPPORTED;
+
+	ret = micron_nand_on_die_ecc_setup(chip, true);
+	if (ret)
+		return MICRON_ON_DIE_UNSUPPORTED;
+
+	chip->onfi_get_features(nand_to_mtd(chip), chip,
+				ONFI_FEATURE_ON_DIE_ECC, feature);
+	if ((feature[0] & ONFI_FEATURE_ON_DIE_ECC_EN) == 0)
+		return MICRON_ON_DIE_UNSUPPORTED;
+
+	ret = micron_nand_on_die_ecc_setup(chip, false);
+	if (ret)
+		return MICRON_ON_DIE_UNSUPPORTED;
+
+	chip->onfi_get_features(nand_to_mtd(chip), chip,
+				ONFI_FEATURE_ON_DIE_ECC, feature);
+	if (feature[0] & ONFI_FEATURE_ON_DIE_ECC_EN)
+		return MICRON_ON_DIE_MANDATORY;
+
+	/*
+	 * Some Micron NANDs have an on-die ECC of 4/512, some other
+	 * 8/512. We only support the former.
+	 */
+	if (chip->onfi_params.ecc_bits != 4)
+		return MICRON_ON_DIE_UNSUPPORTED;
+
+	return MICRON_ON_DIE_SUPPORTED;
+}
+
 static int micron_nand_init(struct nand_chip *chip)
 {
 	struct mtd_info *mtd = nand_to_mtd(chip);
+	int ondie;
 	int ret;
 
 	ret = micron_nand_onfi_init(chip);
@@ -78,6 +272,34 @@ static int micron_nand_init(struct nand_chip *chip)
 	if (mtd->writesize == 2048)
 		chip->bbt_options |= NAND_BBT_SCAN2NDPAGE;
 
+	ondie = micron_supports_on_die_ecc(chip);
+
+	if (ondie == MICRON_ON_DIE_MANDATORY) {
+		pr_err("On-die ECC forcefully enabled, not supported\n");
+		return -EINVAL;
+	}
+
+	if (chip->ecc.mode == NAND_ECC_ON_DIE) {
+		if (ondie == MICRON_ON_DIE_UNSUPPORTED) {
+			pr_err("On-die ECC selected but not supported\n");
+			return -EINVAL;
+		}
+
+		chip->ecc.options = NAND_ECC_CUSTOM_PAGE_ACCESS;
+		chip->ecc.bytes = 8;
+		chip->ecc.size = 512;
+		chip->ecc.strength = 4;
+		chip->ecc.algo = NAND_ECC_BCH;
+		chip->ecc.read_page = micron_nand_read_page_on_die_ecc;
+		chip->ecc.write_page = micron_nand_write_page_on_die_ecc;
+		chip->ecc.read_page_raw =
+			micron_nand_read_page_raw_on_die_ecc;
+		chip->ecc.write_page_raw =
+			micron_nand_write_page_raw_on_die_ecc;
+
+		mtd_set_ooblayout(mtd, &micron_nand_on_die_ooblayout_ops);
+	}
+
 	return 0;
 }
 
diff --git a/drivers/mtd/nand/nand_timings.c b/drivers/mtd/nand/nand_timings.c
index f06312df3669..7e36d7d13c26 100644
--- a/drivers/mtd/nand/nand_timings.c
+++ b/drivers/mtd/nand/nand_timings.c
@@ -311,9 +311,9 @@ int onfi_init_data_interface(struct nand_chip *chip,
 		struct nand_sdr_timings *timings = &iface->timings.sdr;
 
 		/* microseconds -> picoseconds */
-		timings->tPROG_max = 1000000UL * le16_to_cpu(params->t_prog);
-		timings->tBERS_max = 1000000UL * le16_to_cpu(params->t_bers);
-		timings->tR_max = 1000000UL * le16_to_cpu(params->t_r);
+		timings->tPROG_max = 1000000ULL * le16_to_cpu(params->t_prog);
+		timings->tBERS_max = 1000000ULL * le16_to_cpu(params->t_bers);
+		timings->tR_max = 1000000ULL * le16_to_cpu(params->t_r);
 
 		/* nanoseconds -> picoseconds */
 		timings->tCCS_min = 1000UL * le16_to_cpu(params->t_ccs);
diff --git a/drivers/mtd/nand/orion_nand.c b/drivers/mtd/nand/orion_nand.c
index f8e463a97b9e..209170ed2b76 100644
--- a/drivers/mtd/nand/orion_nand.c
+++ b/drivers/mtd/nand/orion_nand.c
@@ -166,7 +166,11 @@ static int __init orion_nand_probe(struct platform_device *pdev)
 		}
 	}
 
-	clk_prepare_enable(info->clk);
+	ret = clk_prepare_enable(info->clk);
+	if (ret) {
+		dev_err(&pdev->dev, "failed to prepare clock!\n");
+		return ret;
+	}
 
 	ret = nand_scan(mtd, 1);
 	if (ret)
diff --git a/drivers/mtd/nand/pxa3xx_nand.c b/drivers/mtd/nand/pxa3xx_nand.c
index 649ba8200832..74dae4bbdac8 100644
--- a/drivers/mtd/nand/pxa3xx_nand.c
+++ b/drivers/mtd/nand/pxa3xx_nand.c
@@ -1812,6 +1812,8 @@ static int alloc_nand_resource(struct platform_device *pdev)
 		chip->write_buf		= pxa3xx_nand_write_buf;
 		chip->options		|= NAND_NO_SUBPAGE_WRITE;
 		chip->cmdfunc		= nand_cmdfunc;
+		chip->onfi_set_features	= nand_onfi_get_set_features_notsupp;
+		chip->onfi_get_features	= nand_onfi_get_set_features_notsupp;
 	}
 
 	nand_hw_control_init(chip->controller);
diff --git a/drivers/mtd/nand/qcom_nandc.c b/drivers/mtd/nand/qcom_nandc.c
index 57d483ac5765..88af7145a51a 100644
--- a/drivers/mtd/nand/qcom_nandc.c
+++ b/drivers/mtd/nand/qcom_nandc.c
@@ -2008,6 +2008,8 @@ static int qcom_nand_host_init(struct qcom_nand_controller *nandc,
 	chip->read_byte		= qcom_nandc_read_byte;
 	chip->read_buf		= qcom_nandc_read_buf;
 	chip->write_buf		= qcom_nandc_write_buf;
+	chip->onfi_set_features	= nand_onfi_get_set_features_notsupp;
+	chip->onfi_get_features	= nand_onfi_get_set_features_notsupp;
 
 	/*
 	 * the bad block marker is readable only when we read the last codeword
diff --git a/drivers/mtd/nand/s3c2410.c b/drivers/mtd/nand/s3c2410.c
index f0b030d44f71..9e0c849607b9 100644
--- a/drivers/mtd/nand/s3c2410.c
+++ b/drivers/mtd/nand/s3c2410.c
@@ -812,9 +812,8 @@ static int s3c2410_nand_add_partition(struct s3c2410_nand_info *info,
 	return -ENODEV;
 }
 
-static int s3c2410_nand_setup_data_interface(struct mtd_info *mtd,
-					const struct nand_data_interface *conf,
-					bool check_only)
+static int s3c2410_nand_setup_data_interface(struct mtd_info *mtd, int csline,
+					const struct nand_data_interface *conf)
 {
 	struct s3c2410_nand_info *info = s3c2410_nand_mtd_toinfo(mtd);
 	struct s3c2410_platform_nand *pdata = info->platform;
diff --git a/drivers/mtd/nand/sh_flctl.c b/drivers/mtd/nand/sh_flctl.c
index 442ce619b3b6..891ac7b99305 100644
--- a/drivers/mtd/nand/sh_flctl.c
+++ b/drivers/mtd/nand/sh_flctl.c
@@ -1183,6 +1183,8 @@ static int flctl_probe(struct platform_device *pdev)
 	nand->read_buf = flctl_read_buf;
 	nand->select_chip = flctl_select_chip;
 	nand->cmdfunc = flctl_cmdfunc;
+	nand->onfi_set_features = nand_onfi_get_set_features_notsupp;
+	nand->onfi_get_features = nand_onfi_get_set_features_notsupp;
 
 	if (pdata->flcmncr_val & SEL_16BIT)
 		nand->options |= NAND_BUSWIDTH_16;
diff --git a/drivers/mtd/nand/sunxi_nand.c b/drivers/mtd/nand/sunxi_nand.c
index 118a26fff368..6abd142b1324 100644
--- a/drivers/mtd/nand/sunxi_nand.c
+++ b/drivers/mtd/nand/sunxi_nand.c
@@ -1301,7 +1301,6 @@ static int sunxi_nfc_hw_ecc_read_subpage(struct mtd_info *mtd,
 
 	sunxi_nfc_hw_ecc_enable(mtd);
 
-	chip->cmdfunc(mtd, NAND_CMD_READ0, 0, page);
 	for (i = data_offs / ecc->size;
 	     i < DIV_ROUND_UP(data_offs + readlen, ecc->size); i++) {
 		int data_off = i * ecc->size;
@@ -1592,9 +1591,8 @@ static int _sunxi_nand_lookup_timing(const s32 *lut, int lut_size, u32 duration,
 #define sunxi_nand_lookup_timing(l, p, c) \
 			_sunxi_nand_lookup_timing(l, ARRAY_SIZE(l), p, c)
 
-static int sunxi_nfc_setup_data_interface(struct mtd_info *mtd,
-					const struct nand_data_interface *conf,
-					bool check_only)
+static int sunxi_nfc_setup_data_interface(struct mtd_info *mtd, int csline,
+					const struct nand_data_interface *conf)
 {
 	struct nand_chip *nand = mtd_to_nand(mtd);
 	struct sunxi_nand_chip *chip = to_sunxi_nand(nand);
@@ -1707,7 +1705,7 @@ static int sunxi_nfc_setup_data_interface(struct mtd_info *mtd,
 		return tRHW;
 	}
 
-	if (check_only)
+	if (csline == NAND_DATA_IFACE_CHECK_ONLY)
 		return 0;
 
 	/*
@@ -1730,6 +1728,10 @@ static int sunxi_nfc_setup_data_interface(struct mtd_info *mtd,
 	 */
 	chip->clk_rate = NSEC_PER_SEC / min_clk_period;
 	real_clk_rate = clk_round_rate(nfc->mod_clk, chip->clk_rate);
+	if (real_clk_rate <= 0) {
+		dev_err(nfc->dev, "Unable to round clk %lu\n", chip->clk_rate);
+		return -EINVAL;
+	}
 
 	/*
 	 * ONFI specification 3.1, paragraph 4.15.2 dictates that EDO data
@@ -1922,7 +1924,6 @@ static int sunxi_nand_hw_ecc_ctrl_init(struct mtd_info *mtd,
 	ecc->write_subpage = sunxi_nfc_hw_ecc_write_subpage;
 	ecc->read_oob_raw = nand_read_oob_std;
 	ecc->write_oob_raw = nand_write_oob_std;
-	ecc->read_subpage = sunxi_nfc_hw_ecc_read_subpage;
 
 	return 0;
 }
diff --git a/drivers/mtd/nand/tango_nand.c b/drivers/mtd/nand/tango_nand.c
index 49b286c6c10f..9d40b793b1c4 100644
--- a/drivers/mtd/nand/tango_nand.c
+++ b/drivers/mtd/nand/tango_nand.c
@@ -303,7 +303,7 @@ static int tango_write_page(struct mtd_info *mtd, struct nand_chip *chip,
 			    const u8 *buf, int oob_required, int page)
 {
 	struct tango_nfc *nfc = to_tango_nfc(chip->controller);
-	int err, len = mtd->writesize;
+	int err, status, len = mtd->writesize;
 
 	/* Calling tango_write_oob() would send PAGEPROG twice */
 	if (oob_required)
@@ -314,6 +314,10 @@ static int tango_write_page(struct mtd_info *mtd, struct nand_chip *chip,
 	if (err)
 		return err;
 
+	status = chip->waitfunc(mtd, chip);
+	if (status & NAND_STATUS_FAIL)
+		return -EIO;
+
 	return 0;
 }
 
@@ -340,7 +344,7 @@ static void aux_write(struct nand_chip *chip, const u8 **buf, int len, int *pos)
 
 	if (!*buf) {
 		/* skip over "len" bytes */
-		chip->cmdfunc(mtd, NAND_CMD_SEQIN, *pos, -1);
+		chip->cmdfunc(mtd, NAND_CMD_RNDIN, *pos, -1);
 	} else {
 		tango_write_buf(mtd, *buf, len);
 		*buf += len;
@@ -431,9 +435,16 @@ static int tango_read_page_raw(struct mtd_info *mtd, struct nand_chip *chip,
 static int tango_write_page_raw(struct mtd_info *mtd, struct nand_chip *chip,
 				const u8 *buf, int oob_required, int page)
 {
+	int status;
+
 	chip->cmdfunc(mtd, NAND_CMD_SEQIN, 0, page);
 	raw_write(chip, buf, chip->oob_poi);
 	chip->cmdfunc(mtd, NAND_CMD_PAGEPROG, -1, -1);
+
+	status = chip->waitfunc(mtd, chip);
+	if (status & NAND_STATUS_FAIL)
+		return -EIO;
+
 	return 0;
 }
 
@@ -484,9 +495,8 @@ static u32 to_ticks(int kHz, int ps)
 	return DIV_ROUND_UP_ULL((u64)kHz * ps, NSEC_PER_SEC);
 }
 
-static int tango_set_timings(struct mtd_info *mtd,
-			     const struct nand_data_interface *conf,
-			     bool check_only)
+static int tango_set_timings(struct mtd_info *mtd, int csline,
+			     const struct nand_data_interface *conf)
 {
 	const struct nand_sdr_timings *sdr = nand_get_sdr_timings(conf);
 	struct nand_chip *chip = mtd_to_nand(mtd);
@@ -498,7 +508,7 @@ static int tango_set_timings(struct mtd_info *mtd,
 	if (IS_ERR(sdr))
 		return PTR_ERR(sdr);
 
-	if (check_only)
+	if (csline == NAND_DATA_IFACE_CHECK_ONLY)
 		return 0;
 
 	Trdy = to_ticks(kHz, sdr->tCEA_max - sdr->tREA_max);
diff --git a/drivers/mtd/nand/vf610_nfc.c b/drivers/mtd/nand/vf610_nfc.c
index 3ea4bb19e12d..744ab10e8962 100644
--- a/drivers/mtd/nand/vf610_nfc.c
+++ b/drivers/mtd/nand/vf610_nfc.c
@@ -703,6 +703,8 @@ static int vf610_nfc_probe(struct platform_device *pdev)
 	chip->read_buf = vf610_nfc_read_buf;
 	chip->write_buf = vf610_nfc_write_buf;
 	chip->select_chip = vf610_nfc_select_chip;
+	chip->onfi_set_features = nand_onfi_get_set_features_notsupp;
+	chip->onfi_get_features = nand_onfi_get_set_features_notsupp;
 
 	chip->options |= NAND_NO_SUBPAGE_WRITE;
 
diff --git a/drivers/mtd/parsers/Kconfig b/drivers/mtd/parsers/Kconfig
new file mode 100644
index 000000000000..d206b3c533bc
--- /dev/null
+++ b/drivers/mtd/parsers/Kconfig
@@ -0,0 +1,8 @@
+config MTD_PARSER_TRX
+	tristate "Parser for TRX format partitions"
+	depends on MTD && (BCM47XX || ARCH_BCM_5301X || COMPILE_TEST)
+	help
+	  TRX is a firmware format used by Broadcom on their devices. It
+	  may contain up to 3/4 partitions (depending on the version).
+	  This driver will parse TRX header and report at least two partitions:
+	  kernel and rootfs.
diff --git a/drivers/mtd/parsers/Makefile b/drivers/mtd/parsers/Makefile
new file mode 100644
index 000000000000..4d9024e0be3b
--- /dev/null
+++ b/drivers/mtd/parsers/Makefile
@@ -0,0 +1 @@
+obj-$(CONFIG_MTD_PARSER_TRX)		+= parser_trx.o
diff --git a/drivers/mtd/parsers/parser_trx.c b/drivers/mtd/parsers/parser_trx.c
new file mode 100644
index 000000000000..df360a75e1eb
--- /dev/null
+++ b/drivers/mtd/parsers/parser_trx.c
@@ -0,0 +1,126 @@
+/*
+ * Parser for TRX format partitions
+ *
+ * Copyright (C) 2012 - 2017 Rafał Miłecki <rafal@milecki.pl>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ */
+
+#include <linux/module.h>
+#include <linux/slab.h>
+#include <linux/mtd/mtd.h>
+#include <linux/mtd/partitions.h>
+
+#define TRX_PARSER_MAX_PARTS		4
+
+/* Magics */
+#define TRX_MAGIC			0x30524448
+#define UBI_EC_MAGIC			0x23494255	/* UBI# */
+
+struct trx_header {
+	uint32_t magic;
+	uint32_t length;
+	uint32_t crc32;
+	uint16_t flags;
+	uint16_t version;
+	uint32_t offset[3];
+} __packed;
+
+static const char *parser_trx_data_part_name(struct mtd_info *master,
+					     size_t offset)
+{
+	uint32_t buf;
+	size_t bytes_read;
+	int err;
+
+	err  = mtd_read(master, offset, sizeof(buf), &bytes_read,
+			(uint8_t *)&buf);
+	if (err && !mtd_is_bitflip(err)) {
+		pr_err("mtd_read error while parsing (offset: 0x%zX): %d\n",
+			offset, err);
+		goto out_default;
+	}
+
+	if (buf == UBI_EC_MAGIC)
+		return "ubi";
+
+out_default:
+	return "rootfs";
+}
+
+static int parser_trx_parse(struct mtd_info *mtd,
+			    const struct mtd_partition **pparts,
+			    struct mtd_part_parser_data *data)
+{
+	struct mtd_partition *parts;
+	struct mtd_partition *part;
+	struct trx_header trx;
+	size_t bytes_read;
+	uint8_t curr_part = 0, i = 0;
+	int err;
+
+	parts = kzalloc(sizeof(struct mtd_partition) * TRX_PARSER_MAX_PARTS,
+			GFP_KERNEL);
+	if (!parts)
+		return -ENOMEM;
+
+	err = mtd_read(mtd, 0, sizeof(trx), &bytes_read, (uint8_t *)&trx);
+	if (err) {
+		pr_err("MTD reading error: %d\n", err);
+		kfree(parts);
+		return err;
+	}
+
+	if (trx.magic != TRX_MAGIC) {
+		kfree(parts);
+		return -ENOENT;
+	}
+
+	/* We have LZMA loader if there is address in offset[2] */
+	if (trx.offset[2]) {
+		part = &parts[curr_part++];
+		part->name = "loader";
+		part->offset = trx.offset[i];
+		i++;
+	}
+
+	if (trx.offset[i]) {
+		part = &parts[curr_part++];
+		part->name = "linux";
+		part->offset = trx.offset[i];
+		i++;
+	}
+
+	if (trx.offset[i]) {
+		part = &parts[curr_part++];
+		part->name = parser_trx_data_part_name(mtd, trx.offset[i]);
+		part->offset = trx.offset[i];
+		i++;
+	}
+
+	/*
+	 * Assume that every partition ends at the beginning of the one it is
+	 * followed by.
+	 */
+	for (i = 0; i < curr_part; i++) {
+		u64 next_part_offset = (i < curr_part - 1) ?
+				       parts[i + 1].offset : mtd->size;
+
+		parts[i].size = next_part_offset - parts[i].offset;
+	}
+
+	*pparts = parts;
+	return i;
+};
+
+static struct mtd_part_parser mtd_parser_trx = {
+	.parse_fn = parser_trx_parse,
+	.name = "trx",
+};
+module_mtd_part_parser(mtd_parser_trx);
+
+MODULE_LICENSE("GPL v2");
+MODULE_DESCRIPTION("Parser for TRX format partitions");
diff --git a/drivers/mtd/spi-nor/Kconfig b/drivers/mtd/spi-nor/Kconfig
index bfdfb1e72b38..293c8a4d1e49 100644
--- a/drivers/mtd/spi-nor/Kconfig
+++ b/drivers/mtd/spi-nor/Kconfig
@@ -108,7 +108,7 @@ config SPI_INTEL_SPI_PLATFORM
 
 config SPI_STM32_QUADSPI
 	tristate "STM32 Quad SPI controller"
-	depends on ARCH_STM32
+	depends on ARCH_STM32 || COMPILE_TEST
 	help
 	  This enables support for the STM32 Quad SPI controller.
 	  We only connect the NOR to this controller.
diff --git a/drivers/mtd/spi-nor/aspeed-smc.c b/drivers/mtd/spi-nor/aspeed-smc.c
index 56051d30f000..0106357421bd 100644
--- a/drivers/mtd/spi-nor/aspeed-smc.c
+++ b/drivers/mtd/spi-nor/aspeed-smc.c
@@ -19,6 +19,7 @@
 #include <linux/mtd/spi-nor.h>
 #include <linux/of.h>
 #include <linux/of_platform.h>
+#include <linux/sizes.h>
 #include <linux/sysfs.h>
 
 #define DEVICE_NAME	"aspeed-smc"
@@ -97,6 +98,7 @@ struct aspeed_smc_chip {
 	struct aspeed_smc_controller *controller;
 	void __iomem *ctl;			/* control register */
 	void __iomem *ahb_base;			/* base of chip window */
+	u32 ahb_window_size;			/* chip mapping window size */
 	u32 ctl_val[smc_max];			/* control settings */
 	enum aspeed_smc_flash_type type;	/* what type of flash */
 	struct spi_nor nor;
@@ -109,6 +111,7 @@ struct aspeed_smc_controller {
 	const struct aspeed_smc_info *info;	/* type info of controller */
 	void __iomem *regs;			/* controller registers */
 	void __iomem *ahb_base;			/* per-chip windows resource */
+	u32 ahb_window_size;			/* full mapping window size */
 
 	struct aspeed_smc_chip *chips[0];	/* pointers to attached chips */
 };
@@ -180,8 +183,7 @@ struct aspeed_smc_controller {
 
 #define CONTROL_KEEP_MASK						\
 	(CONTROL_AAF_MODE | CONTROL_CE_INACTIVE_MASK | CONTROL_CLK_DIV4 | \
-	 CONTROL_IO_DUMMY_MASK | CONTROL_CLOCK_FREQ_SEL_MASK |		\
-	 CONTROL_LSB_FIRST | CONTROL_CLOCK_MODE_3)
+	 CONTROL_CLOCK_FREQ_SEL_MASK | CONTROL_LSB_FIRST | CONTROL_CLOCK_MODE_3)
 
 /*
  * The Segment Register uses a 8MB unit to encode the start address
@@ -194,6 +196,10 @@ struct aspeed_smc_controller {
 #define SEGMENT_ADDR_REG0		0x30
 #define SEGMENT_ADDR_START(_r)		((((_r) >> 16) & 0xFF) << 23)
 #define SEGMENT_ADDR_END(_r)		((((_r) >> 24) & 0xFF) << 23)
+#define SEGMENT_ADDR_VALUE(start, end)					\
+	(((((start) >> 23) & 0xFF) << 16) | ((((end) >> 23) & 0xFF) << 24))
+#define SEGMENT_ADDR_REG(controller, cs)	\
+	((controller)->regs + SEGMENT_ADDR_REG0 + (cs) * 4)
 
 /*
  * In user mode all data bytes read or written to the chip decode address
@@ -439,8 +445,7 @@ static void __iomem *aspeed_smc_chip_base(struct aspeed_smc_chip *chip,
 	u32 reg;
 
 	if (controller->info->nce > 1) {
-		reg = readl(controller->regs + SEGMENT_ADDR_REG0 +
-			    chip->cs * 4);
+		reg = readl(SEGMENT_ADDR_REG(controller, chip->cs));
 
 		if (SEGMENT_ADDR_START(reg) >= SEGMENT_ADDR_END(reg))
 			return NULL;
@@ -451,6 +456,146 @@ static void __iomem *aspeed_smc_chip_base(struct aspeed_smc_chip *chip,
 	return controller->ahb_base + offset;
 }
 
+static u32 aspeed_smc_ahb_base_phy(struct aspeed_smc_controller *controller)
+{
+	u32 seg0_val = readl(SEGMENT_ADDR_REG(controller, 0));
+
+	return SEGMENT_ADDR_START(seg0_val);
+}
+
+static u32 chip_set_segment(struct aspeed_smc_chip *chip, u32 cs, u32 start,
+			    u32 size)
+{
+	struct aspeed_smc_controller *controller = chip->controller;
+	void __iomem *seg_reg;
+	u32 seg_oldval, seg_newval, ahb_base_phy, end;
+
+	ahb_base_phy = aspeed_smc_ahb_base_phy(controller);
+
+	seg_reg = SEGMENT_ADDR_REG(controller, cs);
+	seg_oldval = readl(seg_reg);
+
+	/*
+	 * If the chip size is not specified, use the default segment
+	 * size, but take into account the possible overlap with the
+	 * previous segment
+	 */
+	if (!size)
+		size = SEGMENT_ADDR_END(seg_oldval) - start;
+
+	/*
+	 * The segment cannot exceed the maximum window size of the
+	 * controller.
+	 */
+	if (start + size > ahb_base_phy + controller->ahb_window_size) {
+		size = ahb_base_phy + controller->ahb_window_size - start;
+		dev_warn(chip->nor.dev, "CE%d window resized to %dMB",
+			 cs, size >> 20);
+	}
+
+	end = start + size;
+	seg_newval = SEGMENT_ADDR_VALUE(start, end);
+	writel(seg_newval, seg_reg);
+
+	/*
+	 * Restore default value if something goes wrong. The chip
+	 * might have set some bogus value and we would loose access
+	 * to the chip.
+	 */
+	if (seg_newval != readl(seg_reg)) {
+		dev_err(chip->nor.dev, "CE%d window invalid", cs);
+		writel(seg_oldval, seg_reg);
+		start = SEGMENT_ADDR_START(seg_oldval);
+		end = SEGMENT_ADDR_END(seg_oldval);
+		size = end - start;
+	}
+
+	dev_info(chip->nor.dev, "CE%d window [ 0x%.8x - 0x%.8x ] %dMB",
+		 cs, start, end, size >> 20);
+
+	return size;
+}
+
+/*
+ * The segment register defines the mapping window on the AHB bus and
+ * it needs to be configured depending on the chip size. The segment
+ * register of the following CE also needs to be tuned in order to
+ * provide a contiguous window across multiple chips.
+ *
+ * This is expected to be called in increasing CE order
+ */
+static u32 aspeed_smc_chip_set_segment(struct aspeed_smc_chip *chip)
+{
+	struct aspeed_smc_controller *controller = chip->controller;
+	u32 ahb_base_phy, start;
+	u32 size = chip->nor.mtd.size;
+
+	/*
+	 * Each controller has a chip size limit for direct memory
+	 * access
+	 */
+	if (size > controller->info->maxsize)
+		size = controller->info->maxsize;
+
+	/*
+	 * The AST2400 SPI controller only handles one chip and does
+	 * not have segment registers. Let's use the chip size for the
+	 * AHB window.
+	 */
+	if (controller->info == &spi_2400_info)
+		goto out;
+
+	/*
+	 * The AST2500 SPI controller has a HW bug when the CE0 chip
+	 * size reaches 128MB. Enforce a size limit of 120MB to
+	 * prevent the controller from using bogus settings in the
+	 * segment register.
+	 */
+	if (chip->cs == 0 && controller->info == &spi_2500_info &&
+	    size == SZ_128M) {
+		size = 120 << 20;
+		dev_info(chip->nor.dev,
+			 "CE%d window resized to %dMB (AST2500 HW quirk)",
+			 chip->cs, size >> 20);
+	}
+
+	ahb_base_phy = aspeed_smc_ahb_base_phy(controller);
+
+	/*
+	 * As a start address for the current segment, use the default
+	 * start address if we are handling CE0 or use the previous
+	 * segment ending address
+	 */
+	if (chip->cs) {
+		u32 prev = readl(SEGMENT_ADDR_REG(controller, chip->cs - 1));
+
+		start = SEGMENT_ADDR_END(prev);
+	} else {
+		start = ahb_base_phy;
+	}
+
+	size = chip_set_segment(chip, chip->cs, start, size);
+
+	/* Update chip base address on the AHB bus */
+	chip->ahb_base = controller->ahb_base + (start - ahb_base_phy);
+
+	/*
+	 * Now, make sure the next segment does not overlap with the
+	 * current one we just configured, even if there is no
+	 * available chip. That could break access in Command Mode.
+	 */
+	if (chip->cs < controller->info->nce - 1)
+		chip_set_segment(chip, chip->cs + 1, start + size, 0);
+
+out:
+	if (size < chip->nor.mtd.size)
+		dev_warn(chip->nor.dev,
+			 "CE%d window too small for chip %dMB",
+			 chip->cs, (u32)chip->nor.mtd.size >> 20);
+
+	return size;
+}
+
 static void aspeed_smc_chip_enable_write(struct aspeed_smc_chip *chip)
 {
 	struct aspeed_smc_controller *controller = chip->controller;
@@ -524,7 +669,7 @@ static int aspeed_smc_chip_setup_init(struct aspeed_smc_chip *chip,
 	 */
 	chip->ahb_base = aspeed_smc_chip_base(chip, res);
 	if (!chip->ahb_base) {
-		dev_warn(chip->nor.dev, "CE segment window closed.\n");
+		dev_warn(chip->nor.dev, "CE%d window closed", chip->cs);
 		return -EINVAL;
 	}
 
@@ -571,6 +716,9 @@ static int aspeed_smc_chip_setup_finish(struct aspeed_smc_chip *chip)
 	if (chip->nor.addr_width == 4 && info->set_4b)
 		info->set_4b(chip);
 
+	/* This is for direct AHB access when using Command Mode. */
+	chip->ahb_window_size = aspeed_smc_chip_set_segment(chip);
+
 	/*
 	 * base mode has not been optimized yet. use it for writes.
 	 */
@@ -585,14 +733,12 @@ static int aspeed_smc_chip_setup_finish(struct aspeed_smc_chip *chip)
 	 * TODO: Adjust clocks if fast read is supported and interpret
 	 * SPI-NOR flags to adjust controller settings.
 	 */
-	switch (chip->nor.flash_read) {
-	case SPI_NOR_NORMAL:
-		cmd = CONTROL_COMMAND_MODE_NORMAL;
-		break;
-	case SPI_NOR_FAST:
-		cmd = CONTROL_COMMAND_MODE_FREAD;
-		break;
-	default:
+	if (chip->nor.read_proto == SNOR_PROTO_1_1_1) {
+		if (chip->nor.read_dummy == 0)
+			cmd = CONTROL_COMMAND_MODE_NORMAL;
+		else
+			cmd = CONTROL_COMMAND_MODE_FREAD;
+	} else {
 		dev_err(chip->nor.dev, "unsupported SPI read mode\n");
 		return -EINVAL;
 	}
@@ -608,6 +754,11 @@ static int aspeed_smc_chip_setup_finish(struct aspeed_smc_chip *chip)
 static int aspeed_smc_setup_flash(struct aspeed_smc_controller *controller,
 				  struct device_node *np, struct resource *r)
 {
+	const struct spi_nor_hwcaps hwcaps = {
+		.mask = SNOR_HWCAPS_READ |
+			SNOR_HWCAPS_READ_FAST |
+			SNOR_HWCAPS_PP,
+	};
 	const struct aspeed_smc_info *info = controller->info;
 	struct device *dev = controller->dev;
 	struct device_node *child;
@@ -671,11 +822,11 @@ static int aspeed_smc_setup_flash(struct aspeed_smc_controller *controller,
 			break;
 
 		/*
-		 * TODO: Add support for SPI_NOR_QUAD and SPI_NOR_DUAL
+		 * TODO: Add support for Dual and Quad SPI protocols
 		 * attach when board support is present as determined
 		 * by of property.
 		 */
-		ret = spi_nor_scan(nor, NULL, SPI_NOR_NORMAL);
+		ret = spi_nor_scan(nor, NULL, &hwcaps);
 		if (ret)
 			break;
 
@@ -731,6 +882,8 @@ static int aspeed_smc_probe(struct platform_device *pdev)
 	if (IS_ERR(controller->ahb_base))
 		return PTR_ERR(controller->ahb_base);
 
+	controller->ahb_window_size = resource_size(res);
+
 	ret = aspeed_smc_setup_flash(controller, np, res);
 	if (ret)
 		dev_err(dev, "Aspeed SMC probe failed %d\n", ret);
diff --git a/drivers/mtd/spi-nor/atmel-quadspi.c b/drivers/mtd/spi-nor/atmel-quadspi.c
index 47937d9beec6..ba76fa8f2031 100644
--- a/drivers/mtd/spi-nor/atmel-quadspi.c
+++ b/drivers/mtd/spi-nor/atmel-quadspi.c
@@ -275,14 +275,48 @@ static void atmel_qspi_debug_command(struct atmel_qspi *aq,
 
 static int atmel_qspi_run_command(struct atmel_qspi *aq,
 				  const struct atmel_qspi_command *cmd,
-				  u32 ifr_tfrtyp, u32 ifr_width)
+				  u32 ifr_tfrtyp, enum spi_nor_protocol proto)
 {
 	u32 iar, icr, ifr, sr;
 	int err = 0;
 
 	iar = 0;
 	icr = 0;
-	ifr = ifr_tfrtyp | ifr_width;
+	ifr = ifr_tfrtyp;
+
+	/* Set the SPI protocol */
+	switch (proto) {
+	case SNOR_PROTO_1_1_1:
+		ifr |= QSPI_IFR_WIDTH_SINGLE_BIT_SPI;
+		break;
+
+	case SNOR_PROTO_1_1_2:
+		ifr |= QSPI_IFR_WIDTH_DUAL_OUTPUT;
+		break;
+
+	case SNOR_PROTO_1_1_4:
+		ifr |= QSPI_IFR_WIDTH_QUAD_OUTPUT;
+		break;
+
+	case SNOR_PROTO_1_2_2:
+		ifr |= QSPI_IFR_WIDTH_DUAL_IO;
+		break;
+
+	case SNOR_PROTO_1_4_4:
+		ifr |= QSPI_IFR_WIDTH_QUAD_IO;
+		break;
+
+	case SNOR_PROTO_2_2_2:
+		ifr |= QSPI_IFR_WIDTH_DUAL_CMD;
+		break;
+
+	case SNOR_PROTO_4_4_4:
+		ifr |= QSPI_IFR_WIDTH_QUAD_CMD;
+		break;
+
+	default:
+		return -EINVAL;
+	}
 
 	/* Compute instruction parameters */
 	if (cmd->enable.bits.instruction) {
@@ -434,7 +468,7 @@ static int atmel_qspi_read_reg(struct spi_nor *nor, u8 opcode,
 	cmd.rx_buf = buf;
 	cmd.buf_len = len;
 	return atmel_qspi_run_command(aq, &cmd, QSPI_IFR_TFRTYP_TRSFR_READ,
-				      QSPI_IFR_WIDTH_SINGLE_BIT_SPI);
+				      nor->reg_proto);
 }
 
 static int atmel_qspi_write_reg(struct spi_nor *nor, u8 opcode,
@@ -450,7 +484,7 @@ static int atmel_qspi_write_reg(struct spi_nor *nor, u8 opcode,
 	cmd.tx_buf = buf;
 	cmd.buf_len = len;
 	return atmel_qspi_run_command(aq, &cmd, QSPI_IFR_TFRTYP_TRSFR_WRITE,
-				      QSPI_IFR_WIDTH_SINGLE_BIT_SPI);
+				      nor->reg_proto);
 }
 
 static ssize_t atmel_qspi_write(struct spi_nor *nor, loff_t to, size_t len,
@@ -469,7 +503,7 @@ static ssize_t atmel_qspi_write(struct spi_nor *nor, loff_t to, size_t len,
 	cmd.tx_buf = write_buf;
 	cmd.buf_len = len;
 	ret = atmel_qspi_run_command(aq, &cmd, QSPI_IFR_TFRTYP_TRSFR_WRITE_MEM,
-				     QSPI_IFR_WIDTH_SINGLE_BIT_SPI);
+				     nor->write_proto);
 	return (ret < 0) ? ret : len;
 }
 
@@ -484,7 +518,7 @@ static int atmel_qspi_erase(struct spi_nor *nor, loff_t offs)
 	cmd.instruction = nor->erase_opcode;
 	cmd.address = (u32)offs;
 	return atmel_qspi_run_command(aq, &cmd, QSPI_IFR_TFRTYP_TRSFR_WRITE,
-				      QSPI_IFR_WIDTH_SINGLE_BIT_SPI);
+				      nor->reg_proto);
 }
 
 static ssize_t atmel_qspi_read(struct spi_nor *nor, loff_t from, size_t len,
@@ -493,27 +527,8 @@ static ssize_t atmel_qspi_read(struct spi_nor *nor, loff_t from, size_t len,
 	struct atmel_qspi *aq = nor->priv;
 	struct atmel_qspi_command cmd;
 	u8 num_mode_cycles, num_dummy_cycles;
-	u32 ifr_width;
 	ssize_t ret;
 
-	switch (nor->flash_read) {
-	case SPI_NOR_NORMAL:
-	case SPI_NOR_FAST:
-		ifr_width = QSPI_IFR_WIDTH_SINGLE_BIT_SPI;
-		break;
-
-	case SPI_NOR_DUAL:
-		ifr_width = QSPI_IFR_WIDTH_DUAL_OUTPUT;
-		break;
-
-	case SPI_NOR_QUAD:
-		ifr_width = QSPI_IFR_WIDTH_QUAD_OUTPUT;
-		break;
-
-	default:
-		return -EINVAL;
-	}
-
 	if (nor->read_dummy >= 2) {
 		num_mode_cycles = 2;
 		num_dummy_cycles = nor->read_dummy - 2;
@@ -536,7 +551,7 @@ static ssize_t atmel_qspi_read(struct spi_nor *nor, loff_t from, size_t len,
 	cmd.rx_buf = read_buf;
 	cmd.buf_len = len;
 	ret = atmel_qspi_run_command(aq, &cmd, QSPI_IFR_TFRTYP_TRSFR_READ_MEM,
-				     ifr_width);
+				     nor->read_proto);
 	return (ret < 0) ? ret : len;
 }
 
@@ -590,6 +605,20 @@ static irqreturn_t atmel_qspi_interrupt(int irq, void *dev_id)
 
 static int atmel_qspi_probe(struct platform_device *pdev)
 {
+	const struct spi_nor_hwcaps hwcaps = {
+		.mask = SNOR_HWCAPS_READ |
+			SNOR_HWCAPS_READ_FAST |
+			SNOR_HWCAPS_READ_1_1_2 |
+			SNOR_HWCAPS_READ_1_2_2 |
+			SNOR_HWCAPS_READ_2_2_2 |
+			SNOR_HWCAPS_READ_1_1_4 |
+			SNOR_HWCAPS_READ_1_4_4 |
+			SNOR_HWCAPS_READ_4_4_4 |
+			SNOR_HWCAPS_PP |
+			SNOR_HWCAPS_PP_1_1_4 |
+			SNOR_HWCAPS_PP_1_4_4 |
+			SNOR_HWCAPS_PP_4_4_4,
+	};
 	struct device_node *child, *np = pdev->dev.of_node;
 	struct atmel_qspi *aq;
 	struct resource *res;
@@ -679,7 +708,7 @@ static int atmel_qspi_probe(struct platform_device *pdev)
 	if (err)
 		goto disable_clk;
 
-	err = spi_nor_scan(nor, NULL, SPI_NOR_QUAD);
+	err = spi_nor_scan(nor, NULL, &hwcaps);
 	if (err)
 		goto disable_clk;
 
diff --git a/drivers/mtd/spi-nor/cadence-quadspi.c b/drivers/mtd/spi-nor/cadence-quadspi.c
index 9f8102de1b16..53c7d8e0327a 100644
--- a/drivers/mtd/spi-nor/cadence-quadspi.c
+++ b/drivers/mtd/spi-nor/cadence-quadspi.c
@@ -855,15 +855,14 @@ static int cqspi_set_protocol(struct spi_nor *nor, const int read)
 	f_pdata->data_width = CQSPI_INST_TYPE_SINGLE;
 
 	if (read) {
-		switch (nor->flash_read) {
-		case SPI_NOR_NORMAL:
-		case SPI_NOR_FAST:
+		switch (nor->read_proto) {
+		case SNOR_PROTO_1_1_1:
 			f_pdata->data_width = CQSPI_INST_TYPE_SINGLE;
 			break;
-		case SPI_NOR_DUAL:
+		case SNOR_PROTO_1_1_2:
 			f_pdata->data_width = CQSPI_INST_TYPE_DUAL;
 			break;
-		case SPI_NOR_QUAD:
+		case SNOR_PROTO_1_1_4:
 			f_pdata->data_width = CQSPI_INST_TYPE_QUAD;
 			break;
 		default:
@@ -1069,6 +1068,13 @@ static void cqspi_controller_init(struct cqspi_st *cqspi)
 
 static int cqspi_setup_flash(struct cqspi_st *cqspi, struct device_node *np)
 {
+	const struct spi_nor_hwcaps hwcaps = {
+		.mask = SNOR_HWCAPS_READ |
+			SNOR_HWCAPS_READ_FAST |
+			SNOR_HWCAPS_READ_1_1_2 |
+			SNOR_HWCAPS_READ_1_1_4 |
+			SNOR_HWCAPS_PP,
+	};
 	struct platform_device *pdev = cqspi->pdev;
 	struct device *dev = &pdev->dev;
 	struct cqspi_flash_pdata *f_pdata;
@@ -1123,7 +1129,7 @@ static int cqspi_setup_flash(struct cqspi_st *cqspi, struct device_node *np)
 			goto err;
 		}
 
-		ret = spi_nor_scan(nor, NULL, SPI_NOR_QUAD);
+		ret = spi_nor_scan(nor, NULL, &hwcaps);
 		if (ret)
 			goto err;
 
@@ -1277,7 +1283,7 @@ static const struct dev_pm_ops cqspi__dev_pm_ops = {
 #define CQSPI_DEV_PM_OPS	NULL
 #endif
 
-static struct of_device_id const cqspi_dt_ids[] = {
+static const struct of_device_id cqspi_dt_ids[] = {
 	{.compatible = "cdns,qspi-nor",},
 	{ /* end of table */ }
 };
diff --git a/drivers/mtd/spi-nor/fsl-quadspi.c b/drivers/mtd/spi-nor/fsl-quadspi.c
index 1476135e0d50..f17d22435bfc 100644
--- a/drivers/mtd/spi-nor/fsl-quadspi.c
+++ b/drivers/mtd/spi-nor/fsl-quadspi.c
@@ -957,6 +957,10 @@ static void fsl_qspi_unprep(struct spi_nor *nor, enum spi_nor_ops ops)
 
 static int fsl_qspi_probe(struct platform_device *pdev)
 {
+	const struct spi_nor_hwcaps hwcaps = {
+		.mask = SNOR_HWCAPS_READ_1_1_4 |
+			SNOR_HWCAPS_PP,
+	};
 	struct device_node *np = pdev->dev.of_node;
 	struct device *dev = &pdev->dev;
 	struct fsl_qspi *q;
@@ -1065,7 +1069,7 @@ static int fsl_qspi_probe(struct platform_device *pdev)
 		/* set the chip address for READID */
 		fsl_qspi_set_base_addr(q, nor);
 
-		ret = spi_nor_scan(nor, NULL, SPI_NOR_QUAD);
+		ret = spi_nor_scan(nor, NULL, &hwcaps);
 		if (ret)
 			goto mutex_failed;
 
diff --git a/drivers/mtd/spi-nor/hisi-sfc.c b/drivers/mtd/spi-nor/hisi-sfc.c
index a286350627a6..d1106832b9d5 100644
--- a/drivers/mtd/spi-nor/hisi-sfc.c
+++ b/drivers/mtd/spi-nor/hisi-sfc.c
@@ -120,19 +120,24 @@ static inline int wait_op_finish(struct hifmc_host *host)
 		(reg & FMC_INT_OP_DONE), 0, FMC_WAIT_TIMEOUT);
 }
 
-static int get_if_type(enum read_mode flash_read)
+static int get_if_type(enum spi_nor_protocol proto)
 {
 	enum hifmc_iftype if_type;
 
-	switch (flash_read) {
-	case SPI_NOR_DUAL:
+	switch (proto) {
+	case SNOR_PROTO_1_1_2:
 		if_type = IF_TYPE_DUAL;
 		break;
-	case SPI_NOR_QUAD:
+	case SNOR_PROTO_1_2_2:
+		if_type = IF_TYPE_DIO;
+		break;
+	case SNOR_PROTO_1_1_4:
 		if_type = IF_TYPE_QUAD;
 		break;
-	case SPI_NOR_NORMAL:
-	case SPI_NOR_FAST:
+	case SNOR_PROTO_1_4_4:
+		if_type = IF_TYPE_QIO;
+		break;
+	case SNOR_PROTO_1_1_1:
 	default:
 		if_type = IF_TYPE_STD;
 		break;
@@ -253,7 +258,10 @@ static int hisi_spi_nor_dma_transfer(struct spi_nor *nor, loff_t start_off,
 	writel(FMC_DMA_LEN_SET(len), host->regbase + FMC_DMA_LEN);
 
 	reg = OP_CFG_FM_CS(priv->chipselect);
-	if_type = get_if_type(nor->flash_read);
+	if (op_type == FMC_OP_READ)
+		if_type = get_if_type(nor->read_proto);
+	else
+		if_type = get_if_type(nor->write_proto);
 	reg |= OP_CFG_MEM_IF_TYPE(if_type);
 	if (op_type == FMC_OP_READ)
 		reg |= OP_CFG_DUMMY_NUM(nor->read_dummy >> 3);
@@ -321,6 +329,13 @@ static ssize_t hisi_spi_nor_write(struct spi_nor *nor, loff_t to,
 static int hisi_spi_nor_register(struct device_node *np,
 				struct hifmc_host *host)
 {
+	const struct spi_nor_hwcaps hwcaps = {
+		.mask = SNOR_HWCAPS_READ |
+			SNOR_HWCAPS_READ_FAST |
+			SNOR_HWCAPS_READ_1_1_2 |
+			SNOR_HWCAPS_READ_1_1_4 |
+			SNOR_HWCAPS_PP,
+	};
 	struct device *dev = host->dev;
 	struct spi_nor *nor;
 	struct hifmc_priv *priv;
@@ -362,7 +377,7 @@ static int hisi_spi_nor_register(struct device_node *np,
 	nor->read = hisi_spi_nor_read;
 	nor->write = hisi_spi_nor_write;
 	nor->erase = NULL;
-	ret = spi_nor_scan(nor, NULL, SPI_NOR_QUAD);
+	ret = spi_nor_scan(nor, NULL, &hwcaps);
 	if (ret)
 		return ret;
 
diff --git a/drivers/mtd/spi-nor/intel-spi.c b/drivers/mtd/spi-nor/intel-spi.c
index 986a3d020a3a..8a596bfeddff 100644
--- a/drivers/mtd/spi-nor/intel-spi.c
+++ b/drivers/mtd/spi-nor/intel-spi.c
@@ -715,6 +715,11 @@ static void intel_spi_fill_partition(struct intel_spi *ispi,
 struct intel_spi *intel_spi_probe(struct device *dev,
 	struct resource *mem, const struct intel_spi_boardinfo *info)
 {
+	const struct spi_nor_hwcaps hwcaps = {
+		.mask = SNOR_HWCAPS_READ |
+			SNOR_HWCAPS_READ_FAST |
+			SNOR_HWCAPS_PP,
+	};
 	struct mtd_partition part;
 	struct intel_spi *ispi;
 	int ret;
@@ -746,7 +751,7 @@ struct intel_spi *intel_spi_probe(struct device *dev,
 	ispi->nor.write = intel_spi_write;
 	ispi->nor.erase = intel_spi_erase;
 
-	ret = spi_nor_scan(&ispi->nor, NULL, SPI_NOR_NORMAL);
+	ret = spi_nor_scan(&ispi->nor, NULL, &hwcaps);
 	if (ret) {
 		dev_info(dev, "failed to locate the chip\n");
 		return ERR_PTR(ret);
diff --git a/drivers/mtd/spi-nor/mtk-quadspi.c b/drivers/mtd/spi-nor/mtk-quadspi.c
index b6377707ce32..8a20ec4991c8 100644
--- a/drivers/mtd/spi-nor/mtk-quadspi.c
+++ b/drivers/mtd/spi-nor/mtk-quadspi.c
@@ -123,20 +123,20 @@ static void mt8173_nor_set_read_mode(struct mt8173_nor *mt8173_nor)
 {
 	struct spi_nor *nor = &mt8173_nor->nor;
 
-	switch (nor->flash_read) {
-	case SPI_NOR_FAST:
+	switch (nor->read_proto) {
+	case SNOR_PROTO_1_1_1:
 		writeb(nor->read_opcode, mt8173_nor->base +
 		       MTK_NOR_PRGDATA3_REG);
 		writeb(MTK_NOR_FAST_READ, mt8173_nor->base +
 		       MTK_NOR_CFG1_REG);
 		break;
-	case SPI_NOR_DUAL:
+	case SNOR_PROTO_1_1_2:
 		writeb(nor->read_opcode, mt8173_nor->base +
 		       MTK_NOR_PRGDATA3_REG);
 		writeb(MTK_NOR_DUAL_READ_EN, mt8173_nor->base +
 		       MTK_NOR_DUAL_REG);
 		break;
-	case SPI_NOR_QUAD:
+	case SNOR_PROTO_1_1_4:
 		writeb(nor->read_opcode, mt8173_nor->base +
 		       MTK_NOR_PRGDATA4_REG);
 		writeb(MTK_NOR_QUAD_READ_EN, mt8173_nor->base +
@@ -408,6 +408,11 @@ static int mt8173_nor_write_reg(struct spi_nor *nor, u8 opcode, u8 *buf,
 static int mtk_nor_init(struct mt8173_nor *mt8173_nor,
 			struct device_node *flash_node)
 {
+	const struct spi_nor_hwcaps hwcaps = {
+		.mask = SNOR_HWCAPS_READ_FAST |
+			SNOR_HWCAPS_READ_1_1_2 |
+			SNOR_HWCAPS_PP,
+	};
 	int ret;
 	struct spi_nor *nor;
 
@@ -426,7 +431,7 @@ static int mtk_nor_init(struct mt8173_nor *mt8173_nor,
 	nor->write_reg = mt8173_nor_write_reg;
 	nor->mtd.name = "mtk_nor";
 	/* initialized with NULL */
-	ret = spi_nor_scan(nor, NULL, SPI_NOR_DUAL);
+	ret = spi_nor_scan(nor, NULL, &hwcaps);
 	if (ret)
 		return ret;
 
diff --git a/drivers/mtd/spi-nor/nxp-spifi.c b/drivers/mtd/spi-nor/nxp-spifi.c
index 73a14f40928b..15374216d4d9 100644
--- a/drivers/mtd/spi-nor/nxp-spifi.c
+++ b/drivers/mtd/spi-nor/nxp-spifi.c
@@ -240,13 +240,12 @@ static int nxp_spifi_erase(struct spi_nor *nor, loff_t offs)
 
 static int nxp_spifi_setup_memory_cmd(struct nxp_spifi *spifi)
 {
-	switch (spifi->nor.flash_read) {
-	case SPI_NOR_NORMAL:
-	case SPI_NOR_FAST:
+	switch (spifi->nor.read_proto) {
+	case SNOR_PROTO_1_1_1:
 		spifi->mcmd = SPIFI_CMD_FIELDFORM_ALL_SERIAL;
 		break;
-	case SPI_NOR_DUAL:
-	case SPI_NOR_QUAD:
+	case SNOR_PROTO_1_1_2:
+	case SNOR_PROTO_1_1_4:
 		spifi->mcmd = SPIFI_CMD_FIELDFORM_QUAD_DUAL_DATA;
 		break;
 	default:
@@ -274,7 +273,11 @@ static void nxp_spifi_dummy_id_read(struct spi_nor *nor)
 static int nxp_spifi_setup_flash(struct nxp_spifi *spifi,
 				 struct device_node *np)
 {
-	enum read_mode flash_read;
+	struct spi_nor_hwcaps hwcaps = {
+		.mask = SNOR_HWCAPS_READ |
+			SNOR_HWCAPS_READ_FAST |
+			SNOR_HWCAPS_PP,
+	};
 	u32 ctrl, property;
 	u16 mode = 0;
 	int ret;
@@ -308,13 +311,12 @@ static int nxp_spifi_setup_flash(struct nxp_spifi *spifi,
 
 	if (mode & SPI_RX_DUAL) {
 		ctrl |= SPIFI_CTRL_DUAL;
-		flash_read = SPI_NOR_DUAL;
+		hwcaps.mask |= SNOR_HWCAPS_READ_1_1_2;
 	} else if (mode & SPI_RX_QUAD) {
 		ctrl &= ~SPIFI_CTRL_DUAL;
-		flash_read = SPI_NOR_QUAD;
+		hwcaps.mask |= SNOR_HWCAPS_READ_1_1_4;
 	} else {
 		ctrl |= SPIFI_CTRL_DUAL;
-		flash_read = SPI_NOR_NORMAL;
 	}
 
 	switch (mode & (SPI_CPHA | SPI_CPOL)) {
@@ -351,7 +353,7 @@ static int nxp_spifi_setup_flash(struct nxp_spifi *spifi,
 	 */
 	nxp_spifi_dummy_id_read(&spifi->nor);
 
-	ret = spi_nor_scan(&spifi->nor, NULL, flash_read);
+	ret = spi_nor_scan(&spifi->nor, NULL, &hwcaps);
 	if (ret) {
 		dev_err(spifi->dev, "device scan failed\n");
 		return ret;
diff --git a/drivers/mtd/spi-nor/spi-nor.c b/drivers/mtd/spi-nor/spi-nor.c
index dea8c9cbadf0..1413828ff1fb 100644
--- a/drivers/mtd/spi-nor/spi-nor.c
+++ b/drivers/mtd/spi-nor/spi-nor.c
@@ -150,24 +150,6 @@ static int read_cr(struct spi_nor *nor)
 }
 
 /*
- * Dummy Cycle calculation for different type of read.
- * It can be used to support more commands with
- * different dummy cycle requirements.
- */
-static inline int spi_nor_read_dummy_cycles(struct spi_nor *nor)
-{
-	switch (nor->flash_read) {
-	case SPI_NOR_FAST:
-	case SPI_NOR_DUAL:
-	case SPI_NOR_QUAD:
-		return 8;
-	case SPI_NOR_NORMAL:
-		return 0;
-	}
-	return 0;
-}
-
-/*
  * Write status register 1 byte
  * Returns negative if error occurred.
  */
@@ -221,6 +203,10 @@ static inline u8 spi_nor_convert_3to4_read(u8 opcode)
 		{ SPINOR_OP_READ_1_2_2,	SPINOR_OP_READ_1_2_2_4B },
 		{ SPINOR_OP_READ_1_1_4,	SPINOR_OP_READ_1_1_4_4B },
 		{ SPINOR_OP_READ_1_4_4,	SPINOR_OP_READ_1_4_4_4B },
+
+		{ SPINOR_OP_READ_1_1_1_DTR,	SPINOR_OP_READ_1_1_1_DTR_4B },
+		{ SPINOR_OP_READ_1_2_2_DTR,	SPINOR_OP_READ_1_2_2_DTR_4B },
+		{ SPINOR_OP_READ_1_4_4_DTR,	SPINOR_OP_READ_1_4_4_DTR_4B },
 	};
 
 	return spi_nor_convert_opcode(opcode, spi_nor_3to4_read,
@@ -1022,10 +1008,12 @@ static const struct flash_info spi_nor_ids[] = {
 	{ "mx25u6435f",  INFO(0xc22537, 0, 64 * 1024, 128, SECT_4K) },
 	{ "mx25l12805d", INFO(0xc22018, 0, 64 * 1024, 256, 0) },
 	{ "mx25l12855e", INFO(0xc22618, 0, 64 * 1024, 256, 0) },
-	{ "mx25l25635e", INFO(0xc22019, 0, 64 * 1024, 512, 0) },
+	{ "mx25l25635e", INFO(0xc22019, 0, 64 * 1024, 512, SPI_NOR_DUAL_READ | SPI_NOR_QUAD_READ) },
 	{ "mx25u25635f", INFO(0xc22539, 0, 64 * 1024, 512, SECT_4K | SPI_NOR_4B_OPCODES) },
 	{ "mx25l25655e", INFO(0xc22619, 0, 64 * 1024, 512, 0) },
-	{ "mx66l51235l", INFO(0xc2201a, 0, 64 * 1024, 1024, SPI_NOR_QUAD_READ) },
+	{ "mx66l51235l", INFO(0xc2201a, 0, 64 * 1024, 1024, SPI_NOR_DUAL_READ | SPI_NOR_QUAD_READ) },
+	{ "mx66u51235f", INFO(0xc2253a, 0, 64 * 1024, 1024, SECT_4K | SPI_NOR_DUAL_READ | SPI_NOR_QUAD_READ | SPI_NOR_4B_OPCODES) },
+	{ "mx66l1g45g",  INFO(0xc2201b, 0, 64 * 1024, 2048, SECT_4K | SPI_NOR_DUAL_READ | SPI_NOR_QUAD_READ) },
 	{ "mx66l1g55g",  INFO(0xc2261b, 0, 64 * 1024, 2048, SPI_NOR_QUAD_READ) },
 
 	/* Micron */
@@ -1036,7 +1024,7 @@ static const struct flash_info spi_nor_ids[] = {
 	{ "n25q064a",    INFO(0x20bb17, 0, 64 * 1024,  128, SECT_4K | SPI_NOR_QUAD_READ) },
 	{ "n25q128a11",  INFO(0x20bb18, 0, 64 * 1024,  256, SECT_4K | SPI_NOR_QUAD_READ) },
 	{ "n25q128a13",  INFO(0x20ba18, 0, 64 * 1024,  256, SECT_4K | SPI_NOR_QUAD_READ) },
-	{ "n25q256a",    INFO(0x20ba19, 0, 64 * 1024,  512, SECT_4K | SPI_NOR_QUAD_READ) },
+	{ "n25q256a",    INFO(0x20ba19, 0, 64 * 1024,  512, SECT_4K | SPI_NOR_DUAL_READ | SPI_NOR_QUAD_READ) },
 	{ "n25q256ax1",  INFO(0x20bb19, 0, 64 * 1024,  512, SECT_4K | SPI_NOR_QUAD_READ) },
 	{ "n25q512a",    INFO(0x20bb20, 0, 64 * 1024, 1024, SECT_4K | USE_FSR | SPI_NOR_QUAD_READ) },
 	{ "n25q512ax3",  INFO(0x20ba20, 0, 64 * 1024, 1024, SECT_4K | USE_FSR | SPI_NOR_QUAD_READ) },
@@ -1076,6 +1064,7 @@ static const struct flash_info spi_nor_ids[] = {
 	{ "s25fl164k",  INFO(0x014017,      0,  64 * 1024, 128, SECT_4K) },
 	{ "s25fl204k",  INFO(0x014013,      0,  64 * 1024,   8, SECT_4K | SPI_NOR_DUAL_READ) },
 	{ "s25fl208k",  INFO(0x014014,      0,  64 * 1024,  16, SECT_4K | SPI_NOR_DUAL_READ) },
+	{ "s25fl064l",  INFO(0x016017,      0,  64 * 1024, 128, SECT_4K | SPI_NOR_DUAL_READ | SPI_NOR_QUAD_READ | SPI_NOR_4B_OPCODES) },
 
 	/* SST -- large erase sizes are "overlays", "sectors" are 4K */
 	{ "sst25vf040b", INFO(0xbf258d, 0, 64 * 1024,  8, SECT_4K | SST_WRITE) },
@@ -1159,7 +1148,9 @@ static const struct flash_info spi_nor_ids[] = {
 	{ "w25q80", INFO(0xef5014, 0, 64 * 1024,  16, SECT_4K) },
 	{ "w25q80bl", INFO(0xef4014, 0, 64 * 1024,  16, SECT_4K) },
 	{ "w25q128", INFO(0xef4018, 0, 64 * 1024, 256, SECT_4K) },
-	{ "w25q256", INFO(0xef4019, 0, 64 * 1024, 512, SECT_4K) },
+	{ "w25q256", INFO(0xef4019, 0, 64 * 1024, 512, SECT_4K | SPI_NOR_DUAL_READ | SPI_NOR_QUAD_READ) },
+	{ "w25m512jv", INFO(0xef7119, 0, 64 * 1024, 1024,
+			SECT_4K | SPI_NOR_QUAD_READ | SPI_NOR_DUAL_READ) },
 
 	/* Catalyst / On Semiconductor -- non-JEDEC */
 	{ "cat25c11", CAT25_INFO(  16, 8, 16, 1, SPI_NOR_NO_ERASE | SPI_NOR_NO_FR) },
@@ -1403,8 +1394,9 @@ static int macronix_quad_enable(struct spi_nor *nor)
 
 	write_sr(nor, val | SR_QUAD_EN_MX);
 
-	if (spi_nor_wait_till_ready(nor))
-		return 1;
+	ret = spi_nor_wait_till_ready(nor);
+	if (ret)
+		return ret;
 
 	ret = read_sr(nor);
 	if (!(ret > 0 && (ret & SR_QUAD_EN_MX))) {
@@ -1460,30 +1452,6 @@ static int spansion_quad_enable(struct spi_nor *nor)
 	return 0;
 }
 
-static int set_quad_mode(struct spi_nor *nor, const struct flash_info *info)
-{
-	int status;
-
-	switch (JEDEC_MFR(info)) {
-	case SNOR_MFR_MACRONIX:
-		status = macronix_quad_enable(nor);
-		if (status) {
-			dev_err(nor->dev, "Macronix quad-read not enabled\n");
-			return -EINVAL;
-		}
-		return status;
-	case SNOR_MFR_MICRON:
-		return 0;
-	default:
-		status = spansion_quad_enable(nor);
-		if (status) {
-			dev_err(nor->dev, "Spansion quad-read not enabled\n");
-			return -EINVAL;
-		}
-		return status;
-	}
-}
-
 static int spi_nor_check(struct spi_nor *nor)
 {
 	if (!nor->dev || !nor->read || !nor->write ||
@@ -1536,8 +1504,349 @@ static int s3an_nor_scan(const struct flash_info *info, struct spi_nor *nor)
 	return 0;
 }
 
-int spi_nor_scan(struct spi_nor *nor, const char *name, enum read_mode mode)
+struct spi_nor_read_command {
+	u8			num_mode_clocks;
+	u8			num_wait_states;
+	u8			opcode;
+	enum spi_nor_protocol	proto;
+};
+
+struct spi_nor_pp_command {
+	u8			opcode;
+	enum spi_nor_protocol	proto;
+};
+
+enum spi_nor_read_command_index {
+	SNOR_CMD_READ,
+	SNOR_CMD_READ_FAST,
+	SNOR_CMD_READ_1_1_1_DTR,
+
+	/* Dual SPI */
+	SNOR_CMD_READ_1_1_2,
+	SNOR_CMD_READ_1_2_2,
+	SNOR_CMD_READ_2_2_2,
+	SNOR_CMD_READ_1_2_2_DTR,
+
+	/* Quad SPI */
+	SNOR_CMD_READ_1_1_4,
+	SNOR_CMD_READ_1_4_4,
+	SNOR_CMD_READ_4_4_4,
+	SNOR_CMD_READ_1_4_4_DTR,
+
+	/* Octo SPI */
+	SNOR_CMD_READ_1_1_8,
+	SNOR_CMD_READ_1_8_8,
+	SNOR_CMD_READ_8_8_8,
+	SNOR_CMD_READ_1_8_8_DTR,
+
+	SNOR_CMD_READ_MAX
+};
+
+enum spi_nor_pp_command_index {
+	SNOR_CMD_PP,
+
+	/* Quad SPI */
+	SNOR_CMD_PP_1_1_4,
+	SNOR_CMD_PP_1_4_4,
+	SNOR_CMD_PP_4_4_4,
+
+	/* Octo SPI */
+	SNOR_CMD_PP_1_1_8,
+	SNOR_CMD_PP_1_8_8,
+	SNOR_CMD_PP_8_8_8,
+
+	SNOR_CMD_PP_MAX
+};
+
+struct spi_nor_flash_parameter {
+	u64				size;
+	u32				page_size;
+
+	struct spi_nor_hwcaps		hwcaps;
+	struct spi_nor_read_command	reads[SNOR_CMD_READ_MAX];
+	struct spi_nor_pp_command	page_programs[SNOR_CMD_PP_MAX];
+
+	int (*quad_enable)(struct spi_nor *nor);
+};
+
+static void
+spi_nor_set_read_settings(struct spi_nor_read_command *read,
+			  u8 num_mode_clocks,
+			  u8 num_wait_states,
+			  u8 opcode,
+			  enum spi_nor_protocol proto)
 {
+	read->num_mode_clocks = num_mode_clocks;
+	read->num_wait_states = num_wait_states;
+	read->opcode = opcode;
+	read->proto = proto;
+}
+
+static void
+spi_nor_set_pp_settings(struct spi_nor_pp_command *pp,
+			u8 opcode,
+			enum spi_nor_protocol proto)
+{
+	pp->opcode = opcode;
+	pp->proto = proto;
+}
+
+static int spi_nor_init_params(struct spi_nor *nor,
+			       const struct flash_info *info,
+			       struct spi_nor_flash_parameter *params)
+{
+	/* Set legacy flash parameters as default. */
+	memset(params, 0, sizeof(*params));
+
+	/* Set SPI NOR sizes. */
+	params->size = info->sector_size * info->n_sectors;
+	params->page_size = info->page_size;
+
+	/* (Fast) Read settings. */
+	params->hwcaps.mask |= SNOR_HWCAPS_READ;
+	spi_nor_set_read_settings(&params->reads[SNOR_CMD_READ],
+				  0, 0, SPINOR_OP_READ,
+				  SNOR_PROTO_1_1_1);
+
+	if (!(info->flags & SPI_NOR_NO_FR)) {
+		params->hwcaps.mask |= SNOR_HWCAPS_READ_FAST;
+		spi_nor_set_read_settings(&params->reads[SNOR_CMD_READ_FAST],
+					  0, 8, SPINOR_OP_READ_FAST,
+					  SNOR_PROTO_1_1_1);
+	}
+
+	if (info->flags & SPI_NOR_DUAL_READ) {
+		params->hwcaps.mask |= SNOR_HWCAPS_READ_1_1_2;
+		spi_nor_set_read_settings(&params->reads[SNOR_CMD_READ_1_1_2],
+					  0, 8, SPINOR_OP_READ_1_1_2,
+					  SNOR_PROTO_1_1_2);
+	}
+
+	if (info->flags & SPI_NOR_QUAD_READ) {
+		params->hwcaps.mask |= SNOR_HWCAPS_READ_1_1_4;
+		spi_nor_set_read_settings(&params->reads[SNOR_CMD_READ_1_1_4],
+					  0, 8, SPINOR_OP_READ_1_1_4,
+					  SNOR_PROTO_1_1_4);
+	}
+
+	/* Page Program settings. */
+	params->hwcaps.mask |= SNOR_HWCAPS_PP;
+	spi_nor_set_pp_settings(&params->page_programs[SNOR_CMD_PP],
+				SPINOR_OP_PP, SNOR_PROTO_1_1_1);
+
+	/* Select the procedure to set the Quad Enable bit. */
+	if (params->hwcaps.mask & (SNOR_HWCAPS_READ_QUAD |
+				   SNOR_HWCAPS_PP_QUAD)) {
+		switch (JEDEC_MFR(info)) {
+		case SNOR_MFR_MACRONIX:
+			params->quad_enable = macronix_quad_enable;
+			break;
+
+		case SNOR_MFR_MICRON:
+			break;
+
+		default:
+			params->quad_enable = spansion_quad_enable;
+			break;
+		}
+	}
+
+	return 0;
+}
+
+static int spi_nor_hwcaps2cmd(u32 hwcaps, const int table[][2], size_t size)
+{
+	size_t i;
+
+	for (i = 0; i < size; i++)
+		if (table[i][0] == (int)hwcaps)
+			return table[i][1];
+
+	return -EINVAL;
+}
+
+static int spi_nor_hwcaps_read2cmd(u32 hwcaps)
+{
+	static const int hwcaps_read2cmd[][2] = {
+		{ SNOR_HWCAPS_READ,		SNOR_CMD_READ },
+		{ SNOR_HWCAPS_READ_FAST,	SNOR_CMD_READ_FAST },
+		{ SNOR_HWCAPS_READ_1_1_1_DTR,	SNOR_CMD_READ_1_1_1_DTR },
+		{ SNOR_HWCAPS_READ_1_1_2,	SNOR_CMD_READ_1_1_2 },
+		{ SNOR_HWCAPS_READ_1_2_2,	SNOR_CMD_READ_1_2_2 },
+		{ SNOR_HWCAPS_READ_2_2_2,	SNOR_CMD_READ_2_2_2 },
+		{ SNOR_HWCAPS_READ_1_2_2_DTR,	SNOR_CMD_READ_1_2_2_DTR },
+		{ SNOR_HWCAPS_READ_1_1_4,	SNOR_CMD_READ_1_1_4 },
+		{ SNOR_HWCAPS_READ_1_4_4,	SNOR_CMD_READ_1_4_4 },
+		{ SNOR_HWCAPS_READ_4_4_4,	SNOR_CMD_READ_4_4_4 },
+		{ SNOR_HWCAPS_READ_1_4_4_DTR,	SNOR_CMD_READ_1_4_4_DTR },
+		{ SNOR_HWCAPS_READ_1_1_8,	SNOR_CMD_READ_1_1_8 },
+		{ SNOR_HWCAPS_READ_1_8_8,	SNOR_CMD_READ_1_8_8 },
+		{ SNOR_HWCAPS_READ_8_8_8,	SNOR_CMD_READ_8_8_8 },
+		{ SNOR_HWCAPS_READ_1_8_8_DTR,	SNOR_CMD_READ_1_8_8_DTR },
+	};
+
+	return spi_nor_hwcaps2cmd(hwcaps, hwcaps_read2cmd,
+				  ARRAY_SIZE(hwcaps_read2cmd));
+}
+
+static int spi_nor_hwcaps_pp2cmd(u32 hwcaps)
+{
+	static const int hwcaps_pp2cmd[][2] = {
+		{ SNOR_HWCAPS_PP,		SNOR_CMD_PP },
+		{ SNOR_HWCAPS_PP_1_1_4,		SNOR_CMD_PP_1_1_4 },
+		{ SNOR_HWCAPS_PP_1_4_4,		SNOR_CMD_PP_1_4_4 },
+		{ SNOR_HWCAPS_PP_4_4_4,		SNOR_CMD_PP_4_4_4 },
+		{ SNOR_HWCAPS_PP_1_1_8,		SNOR_CMD_PP_1_1_8 },
+		{ SNOR_HWCAPS_PP_1_8_8,		SNOR_CMD_PP_1_8_8 },
+		{ SNOR_HWCAPS_PP_8_8_8,		SNOR_CMD_PP_8_8_8 },
+	};
+
+	return spi_nor_hwcaps2cmd(hwcaps, hwcaps_pp2cmd,
+				  ARRAY_SIZE(hwcaps_pp2cmd));
+}
+
+static int spi_nor_select_read(struct spi_nor *nor,
+			       const struct spi_nor_flash_parameter *params,
+			       u32 shared_hwcaps)
+{
+	int cmd, best_match = fls(shared_hwcaps & SNOR_HWCAPS_READ_MASK) - 1;
+	const struct spi_nor_read_command *read;
+
+	if (best_match < 0)
+		return -EINVAL;
+
+	cmd = spi_nor_hwcaps_read2cmd(BIT(best_match));
+	if (cmd < 0)
+		return -EINVAL;
+
+	read = &params->reads[cmd];
+	nor->read_opcode = read->opcode;
+	nor->read_proto = read->proto;
+
+	/*
+	 * In the spi-nor framework, we don't need to make the difference
+	 * between mode clock cycles and wait state clock cycles.
+	 * Indeed, the value of the mode clock cycles is used by a QSPI
+	 * flash memory to know whether it should enter or leave its 0-4-4
+	 * (Continuous Read / XIP) mode.
+	 * eXecution In Place is out of the scope of the mtd sub-system.
+	 * Hence we choose to merge both mode and wait state clock cycles
+	 * into the so called dummy clock cycles.
+	 */
+	nor->read_dummy = read->num_mode_clocks + read->num_wait_states;
+	return 0;
+}
+
+static int spi_nor_select_pp(struct spi_nor *nor,
+			     const struct spi_nor_flash_parameter *params,
+			     u32 shared_hwcaps)
+{
+	int cmd, best_match = fls(shared_hwcaps & SNOR_HWCAPS_PP_MASK) - 1;
+	const struct spi_nor_pp_command *pp;
+
+	if (best_match < 0)
+		return -EINVAL;
+
+	cmd = spi_nor_hwcaps_pp2cmd(BIT(best_match));
+	if (cmd < 0)
+		return -EINVAL;
+
+	pp = &params->page_programs[cmd];
+	nor->program_opcode = pp->opcode;
+	nor->write_proto = pp->proto;
+	return 0;
+}
+
+static int spi_nor_select_erase(struct spi_nor *nor,
+				const struct flash_info *info)
+{
+	struct mtd_info *mtd = &nor->mtd;
+
+#ifdef CONFIG_MTD_SPI_NOR_USE_4K_SECTORS
+	/* prefer "small sector" erase if possible */
+	if (info->flags & SECT_4K) {
+		nor->erase_opcode = SPINOR_OP_BE_4K;
+		mtd->erasesize = 4096;
+	} else if (info->flags & SECT_4K_PMC) {
+		nor->erase_opcode = SPINOR_OP_BE_4K_PMC;
+		mtd->erasesize = 4096;
+	} else
+#endif
+	{
+		nor->erase_opcode = SPINOR_OP_SE;
+		mtd->erasesize = info->sector_size;
+	}
+	return 0;
+}
+
+static int spi_nor_setup(struct spi_nor *nor, const struct flash_info *info,
+			 const struct spi_nor_flash_parameter *params,
+			 const struct spi_nor_hwcaps *hwcaps)
+{
+	u32 ignored_mask, shared_mask;
+	bool enable_quad_io;
+	int err;
+
+	/*
+	 * Keep only the hardware capabilities supported by both the SPI
+	 * controller and the SPI flash memory.
+	 */
+	shared_mask = hwcaps->mask & params->hwcaps.mask;
+
+	/* SPI n-n-n protocols are not supported yet. */
+	ignored_mask = (SNOR_HWCAPS_READ_2_2_2 |
+			SNOR_HWCAPS_READ_4_4_4 |
+			SNOR_HWCAPS_READ_8_8_8 |
+			SNOR_HWCAPS_PP_4_4_4 |
+			SNOR_HWCAPS_PP_8_8_8);
+	if (shared_mask & ignored_mask) {
+		dev_dbg(nor->dev,
+			"SPI n-n-n protocols are not supported yet.\n");
+		shared_mask &= ~ignored_mask;
+	}
+
+	/* Select the (Fast) Read command. */
+	err = spi_nor_select_read(nor, params, shared_mask);
+	if (err) {
+		dev_err(nor->dev,
+			"can't select read settings supported by both the SPI controller and memory.\n");
+		return err;
+	}
+
+	/* Select the Page Program command. */
+	err = spi_nor_select_pp(nor, params, shared_mask);
+	if (err) {
+		dev_err(nor->dev,
+			"can't select write settings supported by both the SPI controller and memory.\n");
+		return err;
+	}
+
+	/* Select the Sector Erase command. */
+	err = spi_nor_select_erase(nor, info);
+	if (err) {
+		dev_err(nor->dev,
+			"can't select erase settings supported by both the SPI controller and memory.\n");
+		return err;
+	}
+
+	/* Enable Quad I/O if needed. */
+	enable_quad_io = (spi_nor_get_protocol_width(nor->read_proto) == 4 ||
+			  spi_nor_get_protocol_width(nor->write_proto) == 4);
+	if (enable_quad_io && params->quad_enable) {
+		err = params->quad_enable(nor);
+		if (err) {
+			dev_err(nor->dev, "quad mode not supported\n");
+			return err;
+		}
+	}
+
+	return 0;
+}
+
+int spi_nor_scan(struct spi_nor *nor, const char *name,
+		 const struct spi_nor_hwcaps *hwcaps)
+{
+	struct spi_nor_flash_parameter params;
 	const struct flash_info *info = NULL;
 	struct device *dev = nor->dev;
 	struct mtd_info *mtd = &nor->mtd;
@@ -1549,6 +1858,11 @@ int spi_nor_scan(struct spi_nor *nor, const char *name, enum read_mode mode)
 	if (ret)
 		return ret;
 
+	/* Reset SPI protocol for all commands. */
+	nor->reg_proto = SNOR_PROTO_1_1_1;
+	nor->read_proto = SNOR_PROTO_1_1_1;
+	nor->write_proto = SNOR_PROTO_1_1_1;
+
 	if (name)
 		info = spi_nor_match_id(name);
 	/* Try to auto-detect if chip name wasn't specified or not found */
@@ -1591,6 +1905,11 @@ int spi_nor_scan(struct spi_nor *nor, const char *name, enum read_mode mode)
 	if (info->flags & SPI_S3AN)
 		nor->flags |=  SNOR_F_READY_XSR_RDY;
 
+	/* Parse the Serial Flash Discoverable Parameters table. */
+	ret = spi_nor_init_params(nor, info, &params);
+	if (ret)
+		return ret;
+
 	/*
 	 * Atmel, SST, Intel/Numonyx, and others serial NOR tend to power up
 	 * with the software protection bits set
@@ -1611,7 +1930,7 @@ int spi_nor_scan(struct spi_nor *nor, const char *name, enum read_mode mode)
 	mtd->type = MTD_NORFLASH;
 	mtd->writesize = 1;
 	mtd->flags = MTD_CAP_NORFLASH;
-	mtd->size = info->sector_size * info->n_sectors;
+	mtd->size = params.size;
 	mtd->_erase = spi_nor_erase;
 	mtd->_read = spi_nor_read;
 
@@ -1642,75 +1961,38 @@ int spi_nor_scan(struct spi_nor *nor, const char *name, enum read_mode mode)
 	if (info->flags & NO_CHIP_ERASE)
 		nor->flags |= SNOR_F_NO_OP_CHIP_ERASE;
 
-#ifdef CONFIG_MTD_SPI_NOR_USE_4K_SECTORS
-	/* prefer "small sector" erase if possible */
-	if (info->flags & SECT_4K) {
-		nor->erase_opcode = SPINOR_OP_BE_4K;
-		mtd->erasesize = 4096;
-	} else if (info->flags & SECT_4K_PMC) {
-		nor->erase_opcode = SPINOR_OP_BE_4K_PMC;
-		mtd->erasesize = 4096;
-	} else
-#endif
-	{
-		nor->erase_opcode = SPINOR_OP_SE;
-		mtd->erasesize = info->sector_size;
-	}
-
 	if (info->flags & SPI_NOR_NO_ERASE)
 		mtd->flags |= MTD_NO_ERASE;
 
 	mtd->dev.parent = dev;
-	nor->page_size = info->page_size;
+	nor->page_size = params.page_size;
 	mtd->writebufsize = nor->page_size;
 
 	if (np) {
 		/* If we were instantiated by DT, use it */
 		if (of_property_read_bool(np, "m25p,fast-read"))
-			nor->flash_read = SPI_NOR_FAST;
+			params.hwcaps.mask |= SNOR_HWCAPS_READ_FAST;
 		else
-			nor->flash_read = SPI_NOR_NORMAL;
+			params.hwcaps.mask &= ~SNOR_HWCAPS_READ_FAST;
 	} else {
 		/* If we weren't instantiated by DT, default to fast-read */
-		nor->flash_read = SPI_NOR_FAST;
+		params.hwcaps.mask |= SNOR_HWCAPS_READ_FAST;
 	}
 
 	/* Some devices cannot do fast-read, no matter what DT tells us */
 	if (info->flags & SPI_NOR_NO_FR)
-		nor->flash_read = SPI_NOR_NORMAL;
-
-	/* Quad/Dual-read mode takes precedence over fast/normal */
-	if (mode == SPI_NOR_QUAD && info->flags & SPI_NOR_QUAD_READ) {
-		ret = set_quad_mode(nor, info);
-		if (ret) {
-			dev_err(dev, "quad mode not supported\n");
-			return ret;
-		}
-		nor->flash_read = SPI_NOR_QUAD;
-	} else if (mode == SPI_NOR_DUAL && info->flags & SPI_NOR_DUAL_READ) {
-		nor->flash_read = SPI_NOR_DUAL;
-	}
-
-	/* Default commands */
-	switch (nor->flash_read) {
-	case SPI_NOR_QUAD:
-		nor->read_opcode = SPINOR_OP_READ_1_1_4;
-		break;
-	case SPI_NOR_DUAL:
-		nor->read_opcode = SPINOR_OP_READ_1_1_2;
-		break;
-	case SPI_NOR_FAST:
-		nor->read_opcode = SPINOR_OP_READ_FAST;
-		break;
-	case SPI_NOR_NORMAL:
-		nor->read_opcode = SPINOR_OP_READ;
-		break;
-	default:
-		dev_err(dev, "No Read opcode defined\n");
-		return -EINVAL;
-	}
+		params.hwcaps.mask &= ~SNOR_HWCAPS_READ_FAST;
 
-	nor->program_opcode = SPINOR_OP_PP;
+	/*
+	 * Configure the SPI memory:
+	 * - select op codes for (Fast) Read, Page Program and Sector Erase.
+	 * - set the number of dummy cycles (mode cycles + wait states).
+	 * - set the SPI protocols for register and memory accesses.
+	 * - set the Quad Enable bit if needed (required by SPI x-y-4 protos).
+	 */
+	ret = spi_nor_setup(nor, info, &params, hwcaps);
+	if (ret)
+		return ret;
 
 	if (info->addr_width)
 		nor->addr_width = info->addr_width;
@@ -1732,8 +2014,6 @@ int spi_nor_scan(struct spi_nor *nor, const char *name, enum read_mode mode)
 		return -EINVAL;
 	}
 
-	nor->read_dummy = spi_nor_read_dummy_cycles(nor);
-
 	if (info->flags & SPI_S3AN) {
 		ret = s3an_nor_scan(info, nor);
 		if (ret)
diff --git a/drivers/mtd/spi-nor/stm32-quadspi.c b/drivers/mtd/spi-nor/stm32-quadspi.c
index ae45f81b8cd3..86c0931543c5 100644
--- a/drivers/mtd/spi-nor/stm32-quadspi.c
+++ b/drivers/mtd/spi-nor/stm32-quadspi.c
@@ -19,6 +19,7 @@
 #include <linux/of_device.h>
 #include <linux/platform_device.h>
 #include <linux/reset.h>
+#include <linux/sizes.h>
 
 #define QUADSPI_CR		0x00
 #define CR_EN			BIT(0)
@@ -192,15 +193,15 @@ static void stm32_qspi_set_framemode(struct spi_nor *nor,
 	cmd->framemode = CCR_IMODE_1;
 
 	if (read) {
-		switch (nor->flash_read) {
-		case SPI_NOR_NORMAL:
-		case SPI_NOR_FAST:
+		switch (nor->read_proto) {
+		default:
+		case SNOR_PROTO_1_1_1:
 			dmode = CCR_DMODE_1;
 			break;
-		case SPI_NOR_DUAL:
+		case SNOR_PROTO_1_1_2:
 			dmode = CCR_DMODE_2;
 			break;
-		case SPI_NOR_QUAD:
+		case SNOR_PROTO_1_1_4:
 			dmode = CCR_DMODE_4;
 			break;
 		}
@@ -375,7 +376,7 @@ static ssize_t stm32_qspi_read(struct spi_nor *nor, loff_t from, size_t len,
 	struct stm32_qspi_cmd cmd;
 	int err;
 
-	dev_dbg(qspi->dev, "read(%#.2x): buf:%p from:%#.8x len:%#x\n",
+	dev_dbg(qspi->dev, "read(%#.2x): buf:%p from:%#.8x len:%#zx\n",
 		nor->read_opcode, buf, (u32)from, len);
 
 	memset(&cmd, 0, sizeof(cmd));
@@ -402,7 +403,7 @@ static ssize_t stm32_qspi_write(struct spi_nor *nor, loff_t to, size_t len,
 	struct stm32_qspi_cmd cmd;
 	int err;
 
-	dev_dbg(dev, "write(%#.2x): buf:%p to:%#.8x len:%#x\n",
+	dev_dbg(dev, "write(%#.2x): buf:%p to:%#.8x len:%#zx\n",
 		nor->program_opcode, buf, (u32)to, len);
 
 	memset(&cmd, 0, sizeof(cmd));
@@ -480,7 +481,12 @@ static void stm32_qspi_unprep(struct spi_nor *nor, enum spi_nor_ops ops)
 static int stm32_qspi_flash_setup(struct stm32_qspi *qspi,
 				  struct device_node *np)
 {
-	u32 width, flash_read, presc, cs_num, max_rate = 0;
+	struct spi_nor_hwcaps hwcaps = {
+		.mask = SNOR_HWCAPS_READ |
+			SNOR_HWCAPS_READ_FAST |
+			SNOR_HWCAPS_PP,
+	};
+	u32 width, presc, cs_num, max_rate = 0;
 	struct stm32_qspi_flash *flash;
 	struct mtd_info *mtd;
 	int ret;
@@ -499,12 +505,10 @@ static int stm32_qspi_flash_setup(struct stm32_qspi *qspi,
 		width = 1;
 
 	if (width == 4)
-		flash_read = SPI_NOR_QUAD;
+		hwcaps.mask |= SNOR_HWCAPS_READ_1_1_4;
 	else if (width == 2)
-		flash_read = SPI_NOR_DUAL;
-	else if (width == 1)
-		flash_read = SPI_NOR_NORMAL;
-	else
+		hwcaps.mask |= SNOR_HWCAPS_READ_1_1_2;
+	else if (width != 1)
 		return -EINVAL;
 
 	flash = &qspi->flash[cs_num];
@@ -539,7 +543,7 @@ static int stm32_qspi_flash_setup(struct stm32_qspi *qspi,
 	 */
 	flash->fsize = FSIZE_VAL(SZ_1K);
 
-	ret = spi_nor_scan(&flash->nor, NULL, flash_read);
+	ret = spi_nor_scan(&flash->nor, NULL, &hwcaps);
 	if (ret) {
 		dev_err(qspi->dev, "device scan failed\n");
 		return ret;
diff --git a/drivers/mtd/tests/subpagetest.c b/drivers/mtd/tests/subpagetest.c
index aecc6ce5a9e1..fa2519ad2435 100644
--- a/drivers/mtd/tests/subpagetest.c
+++ b/drivers/mtd/tests/subpagetest.c
@@ -102,7 +102,7 @@ static int write_eraseblock2(int ebnum)
 		if (unlikely(err || written != subpgsize * k)) {
 			pr_err("error: write failed at %#llx\n",
 			       (long long)addr);
-			if (written != subpgsize) {
+			if (written != subpgsize * k) {
 				pr_err("  write size: %#x\n",
 				       subpgsize * k);
 				pr_err("  written: %#08zx\n",
diff --git a/drivers/mux/Kconfig b/drivers/mux/Kconfig
index 7c754a0f14bb..19e4e904c9bf 100644
--- a/drivers/mux/Kconfig
+++ b/drivers/mux/Kconfig
@@ -2,20 +2,11 @@
 # Multiplexer devices
 #
 
-menuconfig MULTIPLEXER
-	tristate "Multiplexer subsystem"
-	help
-	  Multiplexer controller subsystem. Multiplexers are used in a
-	  variety of settings, and this subsystem abstracts their use
-	  so that the rest of the kernel sees a common interface. When
-	  multiple parallel multiplexers are controlled by one single
-	  multiplexer controller, this subsystem also coordinates the
-	  multiplexer accesses.
-
-	  To compile the subsystem as a module, choose M here: the module will
-	  be called mux-core.
+config MULTIPLEXER
+	tristate
 
-if MULTIPLEXER
+menu "Multiplexer drivers"
+	depends on MULTIPLEXER
 
 config MUX_ADG792A
 	tristate "Analog Devices ADG792A/ADG792G Multiplexers"
@@ -56,4 +47,4 @@ config MUX_MMIO
 	  To compile the driver as a module, choose M here: the module will
 	  be called mux-mmio.
 
-endif
+endmenu
diff --git a/drivers/mux/mux-core.c b/drivers/mux/mux-core.c
index 90b8995f07cb..2fe96c470112 100644
--- a/drivers/mux/mux-core.c
+++ b/drivers/mux/mux-core.c
@@ -46,7 +46,7 @@ static int __init mux_init(void)
 
 static void __exit mux_exit(void)
 {
-	class_register(&mux_class);
+	class_unregister(&mux_class);
 	ida_destroy(&mux_ida);
 }
 
diff --git a/drivers/net/bonding/bond_main.c b/drivers/net/bonding/bond_main.c
index 14ff622190a5..fc63992ab0e0 100644
--- a/drivers/net/bonding/bond_main.c
+++ b/drivers/net/bonding/bond_main.c
@@ -1569,7 +1569,8 @@ int bond_enslave(struct net_device *bond_dev, struct net_device *slave_dev)
 	new_slave->delay = 0;
 	new_slave->link_failure_count = 0;
 
-	if (bond_update_speed_duplex(new_slave))
+	if (bond_update_speed_duplex(new_slave) &&
+	    bond_needs_speed_duplex(bond))
 		new_slave->link = BOND_LINK_DOWN;
 
 	new_slave->last_rx = jiffies -
@@ -2050,6 +2051,7 @@ static int bond_miimon_inspect(struct bonding *bond)
 				continue;
 
 			bond_propose_link_state(slave, BOND_LINK_FAIL);
+			commit++;
 			slave->delay = bond->params.downdelay;
 			if (slave->delay) {
 				netdev_info(bond->dev, "link status down for %sinterface %s, disabling it in %d ms\n",
@@ -2088,6 +2090,7 @@ static int bond_miimon_inspect(struct bonding *bond)
 				continue;
 
 			bond_propose_link_state(slave, BOND_LINK_BACK);
+			commit++;
 			slave->delay = bond->params.updelay;
 
 			if (slave->delay) {
@@ -2138,11 +2141,13 @@ static void bond_miimon_commit(struct bonding *bond)
 			continue;
 
 		case BOND_LINK_UP:
-			if (bond_update_speed_duplex(slave)) {
+			if (bond_update_speed_duplex(slave) &&
+			    bond_needs_speed_duplex(bond)) {
 				slave->link = BOND_LINK_DOWN;
-				netdev_warn(bond->dev,
-					    "failed to get link speed/duplex for %s\n",
-					    slave->dev->name);
+				if (net_ratelimit())
+					netdev_warn(bond->dev,
+						    "failed to get link speed/duplex for %s\n",
+						    slave->dev->name);
 				continue;
 			}
 			bond_set_slave_link_state(slave, BOND_LINK_UP,
@@ -4596,7 +4601,7 @@ static int bond_check_params(struct bond_params *params)
 	}
 	ad_user_port_key = valptr->value;
 
-	if (bond_mode == BOND_MODE_TLB) {
+	if ((bond_mode == BOND_MODE_TLB) || (bond_mode == BOND_MODE_ALB)) {
 		bond_opt_initstr(&newval, "default");
 		valptr = bond_opt_parse(bond_opt_get(BOND_OPT_TLB_DYNAMIC_LB),
 					&newval);
diff --git a/drivers/net/dsa/b53/b53_common.c b/drivers/net/dsa/b53/b53_common.c
index e68d368e20ac..7f36d3e3c98b 100644
--- a/drivers/net/dsa/b53/b53_common.c
+++ b/drivers/net/dsa/b53/b53_common.c
@@ -1665,6 +1665,7 @@ static const struct b53_chip_data b53_switch_chips[] = {
 		.dev_name = "BCM53125",
 		.vlans = 4096,
 		.enabled_ports = 0xff,
+		.arl_entries = 4,
 		.cpu_port = B53_CPU_PORT,
 		.vta_regs = B53_VTA_REGS,
 		.duplex_reg = B53_DUPLEX_STAT_GE,
diff --git a/drivers/net/dsa/mt7530.c b/drivers/net/dsa/mt7530.c
index 1e46418a3b74..264b281eb86b 100644
--- a/drivers/net/dsa/mt7530.c
+++ b/drivers/net/dsa/mt7530.c
@@ -625,6 +625,44 @@ static void mt7530_adjust_link(struct dsa_switch *ds, int port,
 		 * all finished.
 		 */
 		mt7623_pad_clk_setup(ds);
+	} else {
+		u16 lcl_adv = 0, rmt_adv = 0;
+		u8 flowctrl;
+		u32 mcr = PMCR_USERP_LINK | PMCR_FORCE_MODE;
+
+		switch (phydev->speed) {
+		case SPEED_1000:
+			mcr |= PMCR_FORCE_SPEED_1000;
+			break;
+		case SPEED_100:
+			mcr |= PMCR_FORCE_SPEED_100;
+			break;
+		};
+
+		if (phydev->link)
+			mcr |= PMCR_FORCE_LNK;
+
+		if (phydev->duplex) {
+			mcr |= PMCR_FORCE_FDX;
+
+			if (phydev->pause)
+				rmt_adv = LPA_PAUSE_CAP;
+			if (phydev->asym_pause)
+				rmt_adv |= LPA_PAUSE_ASYM;
+
+			if (phydev->advertising & ADVERTISED_Pause)
+				lcl_adv |= ADVERTISE_PAUSE_CAP;
+			if (phydev->advertising & ADVERTISED_Asym_Pause)
+				lcl_adv |= ADVERTISE_PAUSE_ASYM;
+
+			flowctrl = mii_resolve_flowctrl_fdx(lcl_adv, rmt_adv);
+
+			if (flowctrl & FLOW_CTRL_TX)
+				mcr |= PMCR_TX_FC_EN;
+			if (flowctrl & FLOW_CTRL_RX)
+				mcr |= PMCR_RX_FC_EN;
+		}
+		mt7530_write(priv, MT7530_PMCR_P(port), mcr);
 	}
 }
 
diff --git a/drivers/net/dsa/mt7530.h b/drivers/net/dsa/mt7530.h
index b83d76b99802..74db9822eb40 100644
--- a/drivers/net/dsa/mt7530.h
+++ b/drivers/net/dsa/mt7530.h
@@ -151,6 +151,7 @@ enum mt7530_stp_state {
 #define  PMCR_TX_FC_EN			BIT(5)
 #define  PMCR_RX_FC_EN			BIT(4)
 #define  PMCR_FORCE_SPEED_1000		BIT(3)
+#define  PMCR_FORCE_SPEED_100		BIT(2)
 #define  PMCR_FORCE_FDX			BIT(1)
 #define  PMCR_FORCE_LNK			BIT(0)
 #define  PMCR_COMMON_LINK		(PMCR_IFG_XMIT(1) | PMCR_MAC_MODE | \
diff --git a/drivers/net/dsa/mv88e6xxx/chip.c b/drivers/net/dsa/mv88e6xxx/chip.c
index 53b088166c28..5bcdd33101b0 100644
--- a/drivers/net/dsa/mv88e6xxx/chip.c
+++ b/drivers/net/dsa/mv88e6xxx/chip.c
@@ -3178,6 +3178,7 @@ static const struct mv88e6xxx_ops mv88e6390x_ops = {
 	.port_set_jumbo_size = mv88e6165_port_set_jumbo_size,
 	.port_egress_rate_limiting = mv88e6097_port_egress_rate_limiting,
 	.port_pause_limit = mv88e6390_port_pause_limit,
+	.port_set_cmode = mv88e6390x_port_set_cmode,
 	.port_disable_learn_limit = mv88e6xxx_port_disable_learn_limit,
 	.port_disable_pri_override = mv88e6xxx_port_disable_pri_override,
 	.stats_snapshot = mv88e6390_g1_stats_snapshot,
diff --git a/drivers/net/ethernet/apm/xgene/xgene_enet_main.c b/drivers/net/ethernet/apm/xgene/xgene_enet_main.c
index d3906f6b01bd..1d307f2def2d 100644
--- a/drivers/net/ethernet/apm/xgene/xgene_enet_main.c
+++ b/drivers/net/ethernet/apm/xgene/xgene_enet_main.c
@@ -1787,14 +1787,16 @@ static int xgene_enet_get_resources(struct xgene_enet_pdata *pdata)
 
 	pdata->clk = devm_clk_get(&pdev->dev, NULL);
 	if (IS_ERR(pdata->clk)) {
-		/* Abort if the clock is defined but couldn't be retrived.
-		 * Always abort if the clock is missing on DT system as
-		 * the driver can't cope with this case.
-		 */
-		if (PTR_ERR(pdata->clk) != -ENOENT || dev->of_node)
-			return PTR_ERR(pdata->clk);
-		/* Firmware may have set up the clock already. */
-		dev_info(dev, "clocks have been setup already\n");
+		if (pdata->phy_mode != PHY_INTERFACE_MODE_SGMII) {
+			/* Abort if the clock is defined but couldn't be
+			 * retrived. Always abort if the clock is missing on
+			 * DT system as the driver can't cope with this case.
+			 */
+			if (PTR_ERR(pdata->clk) != -ENOENT || dev->of_node)
+				return PTR_ERR(pdata->clk);
+			/* Firmware may have set up the clock already. */
+			dev_info(dev, "clocks have been setup already\n");
+		}
 	}
 
 	if (pdata->phy_mode != PHY_INTERFACE_MODE_XGMII)
diff --git a/drivers/net/ethernet/aurora/nb8800.c b/drivers/net/ethernet/aurora/nb8800.c
index 041cfb7952f8..e94159507847 100644
--- a/drivers/net/ethernet/aurora/nb8800.c
+++ b/drivers/net/ethernet/aurora/nb8800.c
@@ -609,7 +609,7 @@ static void nb8800_mac_config(struct net_device *dev)
 		mac_mode |= HALF_DUPLEX;
 
 	if (gigabit) {
-		if (priv->phy_mode == PHY_INTERFACE_MODE_RGMII)
+		if (phy_interface_is_rgmii(dev->phydev))
 			mac_mode |= RGMII_MODE;
 
 		mac_mode |= GMAC_MODE;
@@ -1268,11 +1268,10 @@ static int nb8800_tangox_init(struct net_device *dev)
 		break;
 
 	case PHY_INTERFACE_MODE_RGMII:
-		pad_mode = PAD_MODE_RGMII;
-		break;
-
+	case PHY_INTERFACE_MODE_RGMII_ID:
+	case PHY_INTERFACE_MODE_RGMII_RXID:
 	case PHY_INTERFACE_MODE_RGMII_TXID:
-		pad_mode = PAD_MODE_RGMII | PAD_MODE_GTX_CLK_DELAY;
+		pad_mode = PAD_MODE_RGMII;
 		break;
 
 	default:
diff --git a/drivers/net/ethernet/broadcom/b44.c b/drivers/net/ethernet/broadcom/b44.c
index f411936b744c..a1125d10c825 100644
--- a/drivers/net/ethernet/broadcom/b44.c
+++ b/drivers/net/ethernet/broadcom/b44.c
@@ -2368,6 +2368,7 @@ static int b44_init_one(struct ssb_device *sdev,
 	bp->msg_enable = netif_msg_init(b44_debug, B44_DEF_MSG_ENABLE);
 
 	spin_lock_init(&bp->lock);
+	u64_stats_init(&bp->hw_stats.syncp);
 
 	bp->rx_pending = B44_DEF_RX_RING_PENDING;
 	bp->tx_pending = B44_DEF_TX_RING_PENDING;
diff --git a/drivers/net/ethernet/broadcom/bcmsysport.c b/drivers/net/ethernet/broadcom/bcmsysport.c
index 5333601f855f..dc3052751bc1 100644
--- a/drivers/net/ethernet/broadcom/bcmsysport.c
+++ b/drivers/net/ethernet/broadcom/bcmsysport.c
@@ -449,6 +449,10 @@ static void bcm_sysport_get_stats(struct net_device *dev,
 			p = (char *)&dev->stats;
 		else
 			p = (char *)priv;
+
+		if (priv->is_lite && !bcm_sysport_lite_stat_valid(s->type))
+			continue;
+
 		p += s->stat_offset;
 		data[j] = *(unsigned long *)p;
 		j++;
diff --git a/drivers/net/ethernet/broadcom/bgmac-platform.c b/drivers/net/ethernet/broadcom/bgmac-platform.c
index 73aca97a96bc..d937083db9a4 100644
--- a/drivers/net/ethernet/broadcom/bgmac-platform.c
+++ b/drivers/net/ethernet/broadcom/bgmac-platform.c
@@ -50,11 +50,14 @@ static u32 platform_bgmac_idm_read(struct bgmac *bgmac, u16 offset)
 
 static void platform_bgmac_idm_write(struct bgmac *bgmac, u16 offset, u32 value)
 {
-	return writel(value, bgmac->plat.idm_base + offset);
+	writel(value, bgmac->plat.idm_base + offset);
 }
 
 static bool platform_bgmac_clk_enabled(struct bgmac *bgmac)
 {
+	if (!bgmac->plat.idm_base)
+		return true;
+
 	if ((bgmac_idm_read(bgmac, BCMA_IOCTL) & BGMAC_CLK_EN) != BGMAC_CLK_EN)
 		return false;
 	if (bgmac_idm_read(bgmac, BCMA_RESET_CTL) & BCMA_RESET_CTL_RESET)
@@ -66,6 +69,9 @@ static void platform_bgmac_clk_enable(struct bgmac *bgmac, u32 flags)
 {
 	u32 val;
 
+	if (!bgmac->plat.idm_base)
+		return;
+
 	/* The Reset Control register only contains a single bit to show if the
 	 * controller is currently in reset.  Do a sanity check here, just in
 	 * case the bootloader happened to leave the device in reset.
@@ -180,6 +186,7 @@ static int bgmac_probe(struct platform_device *pdev)
 	bgmac->feature_flags |= BGMAC_FEAT_CMDCFG_SR_REV4;
 	bgmac->feature_flags |= BGMAC_FEAT_TX_MASK_SETUP;
 	bgmac->feature_flags |= BGMAC_FEAT_RX_MASK_SETUP;
+	bgmac->feature_flags |= BGMAC_FEAT_IDM_MASK;
 
 	bgmac->dev = &pdev->dev;
 	bgmac->dma_dev = &pdev->dev;
@@ -207,15 +214,13 @@ static int bgmac_probe(struct platform_device *pdev)
 		return PTR_ERR(bgmac->plat.base);
 
 	regs = platform_get_resource_byname(pdev, IORESOURCE_MEM, "idm_base");
-	if (!regs) {
-		dev_err(&pdev->dev, "Unable to obtain idm resource\n");
-		return -EINVAL;
+	if (regs) {
+		bgmac->plat.idm_base = devm_ioremap_resource(&pdev->dev, regs);
+		if (IS_ERR(bgmac->plat.idm_base))
+			return PTR_ERR(bgmac->plat.idm_base);
+		bgmac->feature_flags &= ~BGMAC_FEAT_IDM_MASK;
 	}
 
-	bgmac->plat.idm_base = devm_ioremap_resource(&pdev->dev, regs);
-	if (IS_ERR(bgmac->plat.idm_base))
-		return PTR_ERR(bgmac->plat.idm_base);
-
 	regs = platform_get_resource_byname(pdev, IORESOURCE_MEM, "nicpm_base");
 	if (regs) {
 		bgmac->plat.nicpm_base = devm_ioremap_resource(&pdev->dev,
diff --git a/drivers/net/ethernet/broadcom/bgmac.c b/drivers/net/ethernet/broadcom/bgmac.c
index ba4d2e145bb9..48d672b204a4 100644
--- a/drivers/net/ethernet/broadcom/bgmac.c
+++ b/drivers/net/ethernet/broadcom/bgmac.c
@@ -622,9 +622,11 @@ static int bgmac_dma_alloc(struct bgmac *bgmac)
 	BUILD_BUG_ON(BGMAC_MAX_TX_RINGS > ARRAY_SIZE(ring_base));
 	BUILD_BUG_ON(BGMAC_MAX_RX_RINGS > ARRAY_SIZE(ring_base));
 
-	if (!(bgmac_idm_read(bgmac, BCMA_IOST) & BCMA_IOST_DMA64)) {
-		dev_err(bgmac->dev, "Core does not report 64-bit DMA\n");
-		return -ENOTSUPP;
+	if (!(bgmac->feature_flags & BGMAC_FEAT_IDM_MASK)) {
+		if (!(bgmac_idm_read(bgmac, BCMA_IOST) & BCMA_IOST_DMA64)) {
+			dev_err(bgmac->dev, "Core does not report 64-bit DMA\n");
+			return -ENOTSUPP;
+		}
 	}
 
 	for (i = 0; i < BGMAC_MAX_TX_RINGS; i++) {
@@ -855,9 +857,11 @@ static void bgmac_mac_speed(struct bgmac *bgmac)
 static void bgmac_miiconfig(struct bgmac *bgmac)
 {
 	if (bgmac->feature_flags & BGMAC_FEAT_FORCE_SPEED_2500) {
-		bgmac_idm_write(bgmac, BCMA_IOCTL,
-				bgmac_idm_read(bgmac, BCMA_IOCTL) | 0x40 |
-				BGMAC_BCMA_IOCTL_SW_CLKEN);
+		if (!(bgmac->feature_flags & BGMAC_FEAT_IDM_MASK)) {
+			bgmac_idm_write(bgmac, BCMA_IOCTL,
+					bgmac_idm_read(bgmac, BCMA_IOCTL) |
+					0x40 | BGMAC_BCMA_IOCTL_SW_CLKEN);
+		}
 		bgmac->mac_speed = SPEED_2500;
 		bgmac->mac_duplex = DUPLEX_FULL;
 		bgmac_mac_speed(bgmac);
@@ -874,11 +878,36 @@ static void bgmac_miiconfig(struct bgmac *bgmac)
 	}
 }
 
+static void bgmac_chip_reset_idm_config(struct bgmac *bgmac)
+{
+	u32 iost;
+
+	iost = bgmac_idm_read(bgmac, BCMA_IOST);
+	if (bgmac->feature_flags & BGMAC_FEAT_IOST_ATTACHED)
+		iost &= ~BGMAC_BCMA_IOST_ATTACHED;
+
+	/* 3GMAC: for BCM4707 & BCM47094, only do core reset at bgmac_probe() */
+	if (!(bgmac->feature_flags & BGMAC_FEAT_NO_RESET)) {
+		u32 flags = 0;
+
+		if (iost & BGMAC_BCMA_IOST_ATTACHED) {
+			flags = BGMAC_BCMA_IOCTL_SW_CLKEN;
+			if (!bgmac->has_robosw)
+				flags |= BGMAC_BCMA_IOCTL_SW_RESET;
+		}
+		bgmac_clk_enable(bgmac, flags);
+	}
+
+	if (iost & BGMAC_BCMA_IOST_ATTACHED && !bgmac->has_robosw)
+		bgmac_idm_write(bgmac, BCMA_IOCTL,
+				bgmac_idm_read(bgmac, BCMA_IOCTL) &
+				~BGMAC_BCMA_IOCTL_SW_RESET);
+}
+
 /* http://bcm-v4.sipsolutions.net/mac-gbit/gmac/chipreset */
 static void bgmac_chip_reset(struct bgmac *bgmac)
 {
 	u32 cmdcfg_sr;
-	u32 iost;
 	int i;
 
 	if (bgmac_clk_enabled(bgmac)) {
@@ -899,20 +928,8 @@ static void bgmac_chip_reset(struct bgmac *bgmac)
 		/* TODO: Clear software multicast filter list */
 	}
 
-	iost = bgmac_idm_read(bgmac, BCMA_IOST);
-	if (bgmac->feature_flags & BGMAC_FEAT_IOST_ATTACHED)
-		iost &= ~BGMAC_BCMA_IOST_ATTACHED;
-
-	/* 3GMAC: for BCM4707 & BCM47094, only do core reset at bgmac_probe() */
-	if (!(bgmac->feature_flags & BGMAC_FEAT_NO_RESET)) {
-		u32 flags = 0;
-		if (iost & BGMAC_BCMA_IOST_ATTACHED) {
-			flags = BGMAC_BCMA_IOCTL_SW_CLKEN;
-			if (!bgmac->has_robosw)
-				flags |= BGMAC_BCMA_IOCTL_SW_RESET;
-		}
-		bgmac_clk_enable(bgmac, flags);
-	}
+	if (!(bgmac->feature_flags & BGMAC_FEAT_IDM_MASK))
+		bgmac_chip_reset_idm_config(bgmac);
 
 	/* Request Misc PLL for corerev > 2 */
 	if (bgmac->feature_flags & BGMAC_FEAT_MISC_PLL_REQ) {
@@ -970,11 +987,6 @@ static void bgmac_chip_reset(struct bgmac *bgmac)
 				      BGMAC_CHIPCTL_7_IF_TYPE_RGMII);
 	}
 
-	if (iost & BGMAC_BCMA_IOST_ATTACHED && !bgmac->has_robosw)
-		bgmac_idm_write(bgmac, BCMA_IOCTL,
-				bgmac_idm_read(bgmac, BCMA_IOCTL) &
-				~BGMAC_BCMA_IOCTL_SW_RESET);
-
 	/* http://bcm-v4.sipsolutions.net/mac-gbit/gmac/gmac_reset
 	 * Specs don't say about using BGMAC_CMDCFG_SR, but in this routine
 	 * BGMAC_CMDCFG is read _after_ putting chip in a reset. So it has to
@@ -1497,8 +1509,10 @@ int bgmac_enet_probe(struct bgmac *bgmac)
 	bgmac_clk_enable(bgmac, 0);
 
 	/* This seems to be fixing IRQ by assigning OOB #6 to the core */
-	if (bgmac->feature_flags & BGMAC_FEAT_IRQ_ID_OOB_6)
-		bgmac_idm_write(bgmac, BCMA_OOB_SEL_OUT_A30, 0x86);
+	if (!(bgmac->feature_flags & BGMAC_FEAT_IDM_MASK)) {
+		if (bgmac->feature_flags & BGMAC_FEAT_IRQ_ID_OOB_6)
+			bgmac_idm_write(bgmac, BCMA_OOB_SEL_OUT_A30, 0x86);
+	}
 
 	bgmac_chip_reset(bgmac);
 
diff --git a/drivers/net/ethernet/broadcom/bgmac.h b/drivers/net/ethernet/broadcom/bgmac.h
index c1818766c501..443d57b10264 100644
--- a/drivers/net/ethernet/broadcom/bgmac.h
+++ b/drivers/net/ethernet/broadcom/bgmac.h
@@ -425,6 +425,7 @@
 #define BGMAC_FEAT_CC4_IF_SW_TYPE	BIT(17)
 #define BGMAC_FEAT_CC4_IF_SW_TYPE_RGMII	BIT(18)
 #define BGMAC_FEAT_CC7_IF_TYPE_RGMII	BIT(19)
+#define BGMAC_FEAT_IDM_MASK		BIT(20)
 
 struct bgmac_slot_info {
 	union {
diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_ethtool.c b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_ethtool.c
index 43423744fdfa..1e33abde4a3e 100644
--- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_ethtool.c
+++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_ethtool.c
@@ -2886,7 +2886,7 @@ static int bnx2x_test_nvram_tbl(struct bnx2x *bp,
 
 static int bnx2x_test_nvram(struct bnx2x *bp)
 {
-	const struct crc_pair nvram_tbl[] = {
+	static const struct crc_pair nvram_tbl[] = {
 		{     0,  0x14 }, /* bootstrap */
 		{  0x14,  0xec }, /* dir */
 		{ 0x100, 0x350 }, /* manuf_info */
@@ -2895,7 +2895,7 @@ static int bnx2x_test_nvram(struct bnx2x *bp)
 		{ 0x708,  0x70 }, /* manuf_key_info */
 		{     0,     0 }
 	};
-	const struct crc_pair nvram_tbl2[] = {
+	static const struct crc_pair nvram_tbl2[] = {
 		{ 0x7e8, 0x350 }, /* manuf_info2 */
 		{ 0xb38,  0xf0 }, /* feature_info */
 		{     0,     0 }
@@ -3162,7 +3162,8 @@ static void bnx2x_get_strings(struct net_device *dev, u32 stringset, u8 *buf)
 		if (is_multi(bp)) {
 			for_each_eth_queue(bp, i) {
 				memset(queue_name, 0, sizeof(queue_name));
-				sprintf(queue_name, "%d", i);
+				snprintf(queue_name, sizeof(queue_name),
+					 "%d", i);
 				for (j = 0; j < BNX2X_NUM_Q_STATS; j++)
 					snprintf(buf + (k + j)*ETH_GSTRING_LEN,
 						ETH_GSTRING_LEN,
diff --git a/drivers/net/ethernet/broadcom/bnxt/bnxt.c b/drivers/net/ethernet/broadcom/bnxt/bnxt.c
index a19f68f5862d..e7c8539cbddf 100644
--- a/drivers/net/ethernet/broadcom/bnxt/bnxt.c
+++ b/drivers/net/ethernet/broadcom/bnxt/bnxt.c
@@ -3458,13 +3458,18 @@ static int bnxt_hwrm_func_drv_rgtr(struct bnxt *bp)
 	req.ver_upd = DRV_VER_UPD;
 
 	if (BNXT_PF(bp)) {
-		DECLARE_BITMAP(vf_req_snif_bmap, 256);
-		u32 *data = (u32 *)vf_req_snif_bmap;
+		u32 data[8];
 		int i;
 
-		memset(vf_req_snif_bmap, 0, sizeof(vf_req_snif_bmap));
-		for (i = 0; i < ARRAY_SIZE(bnxt_vf_req_snif); i++)
-			__set_bit(bnxt_vf_req_snif[i], vf_req_snif_bmap);
+		memset(data, 0, sizeof(data));
+		for (i = 0; i < ARRAY_SIZE(bnxt_vf_req_snif); i++) {
+			u16 cmd = bnxt_vf_req_snif[i];
+			unsigned int bit, idx;
+
+			idx = cmd / 32;
+			bit = cmd % 32;
+			data[idx] |= 1 << bit;
+		}
 
 		for (i = 0; i < 8; i++)
 			req.vf_req_fwd[i] = cpu_to_le32(data[i]);
@@ -6279,6 +6284,12 @@ static int bnxt_open(struct net_device *dev)
 	return __bnxt_open_nic(bp, true, true);
 }
 
+static bool bnxt_drv_busy(struct bnxt *bp)
+{
+	return (test_bit(BNXT_STATE_IN_SP_TASK, &bp->state) ||
+		test_bit(BNXT_STATE_READ_STATS, &bp->state));
+}
+
 int bnxt_close_nic(struct bnxt *bp, bool irq_re_init, bool link_re_init)
 {
 	int rc = 0;
@@ -6297,7 +6308,7 @@ int bnxt_close_nic(struct bnxt *bp, bool irq_re_init, bool link_re_init)
 
 	clear_bit(BNXT_STATE_OPEN, &bp->state);
 	smp_mb__after_atomic();
-	while (test_bit(BNXT_STATE_IN_SP_TASK, &bp->state))
+	while (bnxt_drv_busy(bp))
 		msleep(20);
 
 	/* Flush rings and and disable interrupts */
@@ -6358,8 +6369,15 @@ bnxt_get_stats64(struct net_device *dev, struct rtnl_link_stats64 *stats)
 	u32 i;
 	struct bnxt *bp = netdev_priv(dev);
 
-	if (!bp->bnapi)
+	set_bit(BNXT_STATE_READ_STATS, &bp->state);
+	/* Make sure bnxt_close_nic() sees that we are reading stats before
+	 * we check the BNXT_STATE_OPEN flag.
+	 */
+	smp_mb__after_atomic();
+	if (!test_bit(BNXT_STATE_OPEN, &bp->state)) {
+		clear_bit(BNXT_STATE_READ_STATS, &bp->state);
 		return;
+	}
 
 	/* TODO check if we need to synchronize with bnxt_close path */
 	for (i = 0; i < bp->cp_nr_rings; i++) {
@@ -6406,6 +6424,7 @@ bnxt_get_stats64(struct net_device *dev, struct rtnl_link_stats64 *stats)
 		stats->tx_fifo_errors = le64_to_cpu(tx->tx_fifo_underruns);
 		stats->tx_errors = le64_to_cpu(tx->tx_err);
 	}
+	clear_bit(BNXT_STATE_READ_STATS, &bp->state);
 }
 
 static bool bnxt_mc_list_updated(struct bnxt *bp, u32 *rx_mask)
@@ -6904,16 +6923,13 @@ static void bnxt_sp_task(struct work_struct *work)
 }
 
 /* Under rtnl_lock */
-int bnxt_reserve_rings(struct bnxt *bp, int tx, int rx, int tcs, int tx_xdp)
+int bnxt_reserve_rings(struct bnxt *bp, int tx, int rx, bool sh, int tcs,
+		       int tx_xdp)
 {
 	int max_rx, max_tx, tx_sets = 1;
 	int tx_rings_needed;
-	bool sh = true;
 	int rc;
 
-	if (!(bp->flags & BNXT_FLAG_SHARED_RINGS))
-		sh = false;
-
 	if (tcs)
 		tx_sets = tcs;
 
@@ -7121,7 +7137,7 @@ int bnxt_setup_mq_tc(struct net_device *dev, u8 tc)
 		sh = true;
 
 	rc = bnxt_reserve_rings(bp, bp->tx_nr_rings_per_tc, bp->rx_nr_rings,
-				tc, bp->tx_nr_rings_xdp);
+				sh, tc, bp->tx_nr_rings_xdp);
 	if (rc)
 		return rc;
 
diff --git a/drivers/net/ethernet/broadcom/bnxt/bnxt.h b/drivers/net/ethernet/broadcom/bnxt/bnxt.h
index f872a7db2ca8..f34691f85602 100644
--- a/drivers/net/ethernet/broadcom/bnxt/bnxt.h
+++ b/drivers/net/ethernet/broadcom/bnxt/bnxt.h
@@ -1117,6 +1117,7 @@ struct bnxt {
 	unsigned long		state;
 #define BNXT_STATE_OPEN		0
 #define BNXT_STATE_IN_SP_TASK	1
+#define BNXT_STATE_READ_STATS	2
 
 	struct bnxt_irq	*irq_tbl;
 	int			total_irqs;
@@ -1300,7 +1301,8 @@ int bnxt_open_nic(struct bnxt *, bool, bool);
 int bnxt_half_open_nic(struct bnxt *bp);
 void bnxt_half_close_nic(struct bnxt *bp);
 int bnxt_close_nic(struct bnxt *, bool, bool);
-int bnxt_reserve_rings(struct bnxt *bp, int tx, int rx, int tcs, int tx_xdp);
+int bnxt_reserve_rings(struct bnxt *bp, int tx, int rx, bool sh, int tcs,
+		       int tx_xdp);
 int bnxt_setup_mq_tc(struct net_device *dev, u8 tc);
 int bnxt_get_max_rings(struct bnxt *, int *, int *, bool);
 void bnxt_restore_pf_fw_resources(struct bnxt *bp);
diff --git a/drivers/net/ethernet/broadcom/bnxt/bnxt_ethtool.c b/drivers/net/ethernet/broadcom/bnxt/bnxt_ethtool.c
index fd1181510b65..be6acadcb202 100644
--- a/drivers/net/ethernet/broadcom/bnxt/bnxt_ethtool.c
+++ b/drivers/net/ethernet/broadcom/bnxt/bnxt_ethtool.c
@@ -432,7 +432,8 @@ static int bnxt_set_channels(struct net_device *dev,
 		}
 		tx_xdp = req_rx_rings;
 	}
-	rc = bnxt_reserve_rings(bp, req_tx_rings, req_rx_rings, tcs, tx_xdp);
+	rc = bnxt_reserve_rings(bp, req_tx_rings, req_rx_rings, sh, tcs,
+				tx_xdp);
 	if (rc) {
 		netdev_warn(dev, "Unable to allocate the requested rings\n");
 		return rc;
diff --git a/drivers/net/ethernet/broadcom/bnxt/bnxt_xdp.c b/drivers/net/ethernet/broadcom/bnxt/bnxt_xdp.c
index 7d67552e70d7..3961a6807454 100644
--- a/drivers/net/ethernet/broadcom/bnxt/bnxt_xdp.c
+++ b/drivers/net/ethernet/broadcom/bnxt/bnxt_xdp.c
@@ -170,7 +170,7 @@ static int bnxt_xdp_set(struct bnxt *bp, struct bpf_prog *prog)
 	if (!tc)
 		tc = 1;
 	rc = bnxt_reserve_rings(bp, bp->tx_nr_rings_per_tc, bp->rx_nr_rings,
-				tc, tx_xdp);
+				true, tc, tx_xdp);
 	if (rc) {
 		netdev_warn(dev, "Unable to reserve enough TX rings to support XDP.\n");
 		return rc;
diff --git a/drivers/net/ethernet/broadcom/genet/bcmgenet.c b/drivers/net/ethernet/broadcom/genet/bcmgenet.c
index daca1c9d254b..a981c4ee9d72 100644
--- a/drivers/net/ethernet/broadcom/genet/bcmgenet.c
+++ b/drivers/net/ethernet/broadcom/genet/bcmgenet.c
@@ -1202,12 +1202,21 @@ static struct enet_cb *bcmgenet_get_txcb(struct bcmgenet_priv *priv,
 	return tx_cb_ptr;
 }
 
-/* Simple helper to free a control block's resources */
-static void bcmgenet_free_cb(struct enet_cb *cb)
+static struct enet_cb *bcmgenet_put_txcb(struct bcmgenet_priv *priv,
+					 struct bcmgenet_tx_ring *ring)
 {
-	dev_kfree_skb_any(cb->skb);
-	cb->skb = NULL;
-	dma_unmap_addr_set(cb, dma_addr, 0);
+	struct enet_cb *tx_cb_ptr;
+
+	tx_cb_ptr = ring->cbs;
+	tx_cb_ptr += ring->write_ptr - ring->cb_ptr;
+
+	/* Rewinding local write pointer */
+	if (ring->write_ptr == ring->cb_ptr)
+		ring->write_ptr = ring->end_ptr;
+	else
+		ring->write_ptr--;
+
+	return tx_cb_ptr;
 }
 
 static inline void bcmgenet_rx_ring16_int_disable(struct bcmgenet_rx_ring *ring)
@@ -1260,18 +1269,72 @@ static inline void bcmgenet_tx_ring_int_disable(struct bcmgenet_tx_ring *ring)
 				 INTRL2_CPU_MASK_SET);
 }
 
+/* Simple helper to free a transmit control block's resources
+ * Returns an skb when the last transmit control block associated with the
+ * skb is freed.  The skb should be freed by the caller if necessary.
+ */
+static struct sk_buff *bcmgenet_free_tx_cb(struct device *dev,
+					   struct enet_cb *cb)
+{
+	struct sk_buff *skb;
+
+	skb = cb->skb;
+
+	if (skb) {
+		cb->skb = NULL;
+		if (cb == GENET_CB(skb)->first_cb)
+			dma_unmap_single(dev, dma_unmap_addr(cb, dma_addr),
+					 dma_unmap_len(cb, dma_len),
+					 DMA_TO_DEVICE);
+		else
+			dma_unmap_page(dev, dma_unmap_addr(cb, dma_addr),
+				       dma_unmap_len(cb, dma_len),
+				       DMA_TO_DEVICE);
+		dma_unmap_addr_set(cb, dma_addr, 0);
+
+		if (cb == GENET_CB(skb)->last_cb)
+			return skb;
+
+	} else if (dma_unmap_addr(cb, dma_addr)) {
+		dma_unmap_page(dev,
+			       dma_unmap_addr(cb, dma_addr),
+			       dma_unmap_len(cb, dma_len),
+			       DMA_TO_DEVICE);
+		dma_unmap_addr_set(cb, dma_addr, 0);
+	}
+
+	return 0;
+}
+
+/* Simple helper to free a receive control block's resources */
+static struct sk_buff *bcmgenet_free_rx_cb(struct device *dev,
+					   struct enet_cb *cb)
+{
+	struct sk_buff *skb;
+
+	skb = cb->skb;
+	cb->skb = NULL;
+
+	if (dma_unmap_addr(cb, dma_addr)) {
+		dma_unmap_single(dev, dma_unmap_addr(cb, dma_addr),
+				 dma_unmap_len(cb, dma_len), DMA_FROM_DEVICE);
+		dma_unmap_addr_set(cb, dma_addr, 0);
+	}
+
+	return skb;
+}
+
 /* Unlocked version of the reclaim routine */
 static unsigned int __bcmgenet_tx_reclaim(struct net_device *dev,
 					  struct bcmgenet_tx_ring *ring)
 {
 	struct bcmgenet_priv *priv = netdev_priv(dev);
-	struct device *kdev = &priv->pdev->dev;
-	struct enet_cb *tx_cb_ptr;
-	unsigned int pkts_compl = 0;
+	unsigned int txbds_processed = 0;
 	unsigned int bytes_compl = 0;
-	unsigned int c_index;
+	unsigned int pkts_compl = 0;
 	unsigned int txbds_ready;
-	unsigned int txbds_processed = 0;
+	unsigned int c_index;
+	struct sk_buff *skb;
 
 	/* Clear status before servicing to reduce spurious interrupts */
 	if (ring->index == DESC_INDEX)
@@ -1292,21 +1355,12 @@ static unsigned int __bcmgenet_tx_reclaim(struct net_device *dev,
 
 	/* Reclaim transmitted buffers */
 	while (txbds_processed < txbds_ready) {
-		tx_cb_ptr = &priv->tx_cbs[ring->clean_ptr];
-		if (tx_cb_ptr->skb) {
+		skb = bcmgenet_free_tx_cb(&priv->pdev->dev,
+					  &priv->tx_cbs[ring->clean_ptr]);
+		if (skb) {
 			pkts_compl++;
-			bytes_compl += GENET_CB(tx_cb_ptr->skb)->bytes_sent;
-			dma_unmap_single(kdev,
-					 dma_unmap_addr(tx_cb_ptr, dma_addr),
-					 dma_unmap_len(tx_cb_ptr, dma_len),
-					 DMA_TO_DEVICE);
-			bcmgenet_free_cb(tx_cb_ptr);
-		} else if (dma_unmap_addr(tx_cb_ptr, dma_addr)) {
-			dma_unmap_page(kdev,
-				       dma_unmap_addr(tx_cb_ptr, dma_addr),
-				       dma_unmap_len(tx_cb_ptr, dma_len),
-				       DMA_TO_DEVICE);
-			dma_unmap_addr_set(tx_cb_ptr, dma_addr, 0);
+			bytes_compl += GENET_CB(skb)->bytes_sent;
+			dev_kfree_skb_any(skb);
 		}
 
 		txbds_processed++;
@@ -1380,95 +1434,6 @@ static void bcmgenet_tx_reclaim_all(struct net_device *dev)
 	bcmgenet_tx_reclaim(dev, &priv->tx_rings[DESC_INDEX]);
 }
 
-/* Transmits a single SKB (either head of a fragment or a single SKB)
- * caller must hold priv->lock
- */
-static int bcmgenet_xmit_single(struct net_device *dev,
-				struct sk_buff *skb,
-				u16 dma_desc_flags,
-				struct bcmgenet_tx_ring *ring)
-{
-	struct bcmgenet_priv *priv = netdev_priv(dev);
-	struct device *kdev = &priv->pdev->dev;
-	struct enet_cb *tx_cb_ptr;
-	unsigned int skb_len;
-	dma_addr_t mapping;
-	u32 length_status;
-	int ret;
-
-	tx_cb_ptr = bcmgenet_get_txcb(priv, ring);
-
-	if (unlikely(!tx_cb_ptr))
-		BUG();
-
-	tx_cb_ptr->skb = skb;
-
-	skb_len = skb_headlen(skb);
-
-	mapping = dma_map_single(kdev, skb->data, skb_len, DMA_TO_DEVICE);
-	ret = dma_mapping_error(kdev, mapping);
-	if (ret) {
-		priv->mib.tx_dma_failed++;
-		netif_err(priv, tx_err, dev, "Tx DMA map failed\n");
-		dev_kfree_skb(skb);
-		return ret;
-	}
-
-	dma_unmap_addr_set(tx_cb_ptr, dma_addr, mapping);
-	dma_unmap_len_set(tx_cb_ptr, dma_len, skb_len);
-	length_status = (skb_len << DMA_BUFLENGTH_SHIFT) | dma_desc_flags |
-			(priv->hw_params->qtag_mask << DMA_TX_QTAG_SHIFT) |
-			DMA_TX_APPEND_CRC;
-
-	if (skb->ip_summed == CHECKSUM_PARTIAL)
-		length_status |= DMA_TX_DO_CSUM;
-
-	dmadesc_set(priv, tx_cb_ptr->bd_addr, mapping, length_status);
-
-	return 0;
-}
-
-/* Transmit a SKB fragment */
-static int bcmgenet_xmit_frag(struct net_device *dev,
-			      skb_frag_t *frag,
-			      u16 dma_desc_flags,
-			      struct bcmgenet_tx_ring *ring)
-{
-	struct bcmgenet_priv *priv = netdev_priv(dev);
-	struct device *kdev = &priv->pdev->dev;
-	struct enet_cb *tx_cb_ptr;
-	unsigned int frag_size;
-	dma_addr_t mapping;
-	int ret;
-
-	tx_cb_ptr = bcmgenet_get_txcb(priv, ring);
-
-	if (unlikely(!tx_cb_ptr))
-		BUG();
-
-	tx_cb_ptr->skb = NULL;
-
-	frag_size = skb_frag_size(frag);
-
-	mapping = skb_frag_dma_map(kdev, frag, 0, frag_size, DMA_TO_DEVICE);
-	ret = dma_mapping_error(kdev, mapping);
-	if (ret) {
-		priv->mib.tx_dma_failed++;
-		netif_err(priv, tx_err, dev, "%s: Tx DMA map failed\n",
-			  __func__);
-		return ret;
-	}
-
-	dma_unmap_addr_set(tx_cb_ptr, dma_addr, mapping);
-	dma_unmap_len_set(tx_cb_ptr, dma_len, frag_size);
-
-	dmadesc_set(priv, tx_cb_ptr->bd_addr, mapping,
-		    (frag_size << DMA_BUFLENGTH_SHIFT) | dma_desc_flags |
-		    (priv->hw_params->qtag_mask << DMA_TX_QTAG_SHIFT));
-
-	return 0;
-}
-
 /* Reallocate the SKB to put enough headroom in front of it and insert
  * the transmit checksum offsets in the descriptors
  */
@@ -1535,11 +1500,16 @@ static struct sk_buff *bcmgenet_put_tx_csum(struct net_device *dev,
 static netdev_tx_t bcmgenet_xmit(struct sk_buff *skb, struct net_device *dev)
 {
 	struct bcmgenet_priv *priv = netdev_priv(dev);
+	struct device *kdev = &priv->pdev->dev;
 	struct bcmgenet_tx_ring *ring = NULL;
+	struct enet_cb *tx_cb_ptr;
 	struct netdev_queue *txq;
 	unsigned long flags = 0;
 	int nr_frags, index;
-	u16 dma_desc_flags;
+	dma_addr_t mapping;
+	unsigned int size;
+	skb_frag_t *frag;
+	u32 len_stat;
 	int ret;
 	int i;
 
@@ -1592,29 +1562,53 @@ static netdev_tx_t bcmgenet_xmit(struct sk_buff *skb, struct net_device *dev)
 		}
 	}
 
-	dma_desc_flags = DMA_SOP;
-	if (nr_frags == 0)
-		dma_desc_flags |= DMA_EOP;
+	for (i = 0; i <= nr_frags; i++) {
+		tx_cb_ptr = bcmgenet_get_txcb(priv, ring);
 
-	/* Transmit single SKB or head of fragment list */
-	ret = bcmgenet_xmit_single(dev, skb, dma_desc_flags, ring);
-	if (ret) {
-		ret = NETDEV_TX_OK;
-		goto out;
-	}
+		if (unlikely(!tx_cb_ptr))
+			BUG();
+
+		if (!i) {
+			/* Transmit single SKB or head of fragment list */
+			GENET_CB(skb)->first_cb = tx_cb_ptr;
+			size = skb_headlen(skb);
+			mapping = dma_map_single(kdev, skb->data, size,
+						 DMA_TO_DEVICE);
+		} else {
+			/* xmit fragment */
+			frag = &skb_shinfo(skb)->frags[i - 1];
+			size = skb_frag_size(frag);
+			mapping = skb_frag_dma_map(kdev, frag, 0, size,
+						   DMA_TO_DEVICE);
+		}
 
-	/* xmit fragment */
-	for (i = 0; i < nr_frags; i++) {
-		ret = bcmgenet_xmit_frag(dev,
-					 &skb_shinfo(skb)->frags[i],
-					 (i == nr_frags - 1) ? DMA_EOP : 0,
-					 ring);
+		ret = dma_mapping_error(kdev, mapping);
 		if (ret) {
+			priv->mib.tx_dma_failed++;
+			netif_err(priv, tx_err, dev, "Tx DMA map failed\n");
 			ret = NETDEV_TX_OK;
-			goto out;
+			goto out_unmap_frags;
+		}
+		dma_unmap_addr_set(tx_cb_ptr, dma_addr, mapping);
+		dma_unmap_len_set(tx_cb_ptr, dma_len, size);
+
+		tx_cb_ptr->skb = skb;
+
+		len_stat = (size << DMA_BUFLENGTH_SHIFT) |
+			   (priv->hw_params->qtag_mask << DMA_TX_QTAG_SHIFT);
+
+		if (!i) {
+			len_stat |= DMA_TX_APPEND_CRC | DMA_SOP;
+			if (skb->ip_summed == CHECKSUM_PARTIAL)
+				len_stat |= DMA_TX_DO_CSUM;
 		}
+		if (i == nr_frags)
+			len_stat |= DMA_EOP;
+
+		dmadesc_set(priv, tx_cb_ptr->bd_addr, mapping, len_stat);
 	}
 
+	GENET_CB(skb)->last_cb = tx_cb_ptr;
 	skb_tx_timestamp(skb);
 
 	/* Decrement total BD count and advance our write pointer */
@@ -1635,6 +1629,19 @@ out:
 	spin_unlock_irqrestore(&ring->lock, flags);
 
 	return ret;
+
+out_unmap_frags:
+	/* Back up for failed control block mapping */
+	bcmgenet_put_txcb(priv, ring);
+
+	/* Unmap successfully mapped control blocks */
+	while (i-- > 0) {
+		tx_cb_ptr = bcmgenet_put_txcb(priv, ring);
+		bcmgenet_free_tx_cb(kdev, tx_cb_ptr);
+	}
+
+	dev_kfree_skb(skb);
+	goto out;
 }
 
 static struct sk_buff *bcmgenet_rx_refill(struct bcmgenet_priv *priv,
@@ -1666,14 +1673,12 @@ static struct sk_buff *bcmgenet_rx_refill(struct bcmgenet_priv *priv,
 	}
 
 	/* Grab the current Rx skb from the ring and DMA-unmap it */
-	rx_skb = cb->skb;
-	if (likely(rx_skb))
-		dma_unmap_single(kdev, dma_unmap_addr(cb, dma_addr),
-				 priv->rx_buf_len, DMA_FROM_DEVICE);
+	rx_skb = bcmgenet_free_rx_cb(kdev, cb);
 
 	/* Put the new Rx skb on the ring */
 	cb->skb = skb;
 	dma_unmap_addr_set(cb, dma_addr, mapping);
+	dma_unmap_len_set(cb, dma_len, priv->rx_buf_len);
 	dmadesc_set_addr(priv, cb->bd_addr, mapping);
 
 	/* Return the current Rx skb to caller */
@@ -1880,22 +1885,16 @@ static int bcmgenet_alloc_rx_buffers(struct bcmgenet_priv *priv,
 
 static void bcmgenet_free_rx_buffers(struct bcmgenet_priv *priv)
 {
-	struct device *kdev = &priv->pdev->dev;
+	struct sk_buff *skb;
 	struct enet_cb *cb;
 	int i;
 
 	for (i = 0; i < priv->num_rx_bds; i++) {
 		cb = &priv->rx_cbs[i];
 
-		if (dma_unmap_addr(cb, dma_addr)) {
-			dma_unmap_single(kdev,
-					 dma_unmap_addr(cb, dma_addr),
-					 priv->rx_buf_len, DMA_FROM_DEVICE);
-			dma_unmap_addr_set(cb, dma_addr, 0);
-		}
-
-		if (cb->skb)
-			bcmgenet_free_cb(cb);
+		skb = bcmgenet_free_rx_cb(&priv->pdev->dev, cb);
+		if (skb)
+			dev_kfree_skb_any(skb);
 	}
 }
 
@@ -2479,8 +2478,10 @@ static int bcmgenet_dma_teardown(struct bcmgenet_priv *priv)
 
 static void bcmgenet_fini_dma(struct bcmgenet_priv *priv)
 {
-	int i;
 	struct netdev_queue *txq;
+	struct sk_buff *skb;
+	struct enet_cb *cb;
+	int i;
 
 	bcmgenet_fini_rx_napi(priv);
 	bcmgenet_fini_tx_napi(priv);
@@ -2489,10 +2490,10 @@ static void bcmgenet_fini_dma(struct bcmgenet_priv *priv)
 	bcmgenet_dma_teardown(priv);
 
 	for (i = 0; i < priv->num_tx_bds; i++) {
-		if (priv->tx_cbs[i].skb != NULL) {
-			dev_kfree_skb(priv->tx_cbs[i].skb);
-			priv->tx_cbs[i].skb = NULL;
-		}
+		cb = priv->tx_cbs + i;
+		skb = bcmgenet_free_tx_cb(&priv->pdev->dev, cb);
+		if (skb)
+			dev_kfree_skb(skb);
 	}
 
 	for (i = 0; i < priv->hw_params->tx_queues; i++) {
@@ -3668,7 +3669,7 @@ static int bcmgenet_resume(struct device *d)
 
 	phy_init_hw(priv->phydev);
 	/* Speed settings must be restored */
-	bcmgenet_mii_config(priv->dev);
+	bcmgenet_mii_config(priv->dev, false);
 
 	/* disable ethernet MAC while updating its registers */
 	umac_enable_set(priv, CMD_TX_EN | CMD_RX_EN, false);
diff --git a/drivers/net/ethernet/broadcom/genet/bcmgenet.h b/drivers/net/ethernet/broadcom/genet/bcmgenet.h
index efd07020b89f..3a34fdba5301 100644
--- a/drivers/net/ethernet/broadcom/genet/bcmgenet.h
+++ b/drivers/net/ethernet/broadcom/genet/bcmgenet.h
@@ -544,6 +544,8 @@ struct bcmgenet_hw_params {
 };
 
 struct bcmgenet_skb_cb {
+	struct enet_cb *first_cb;	/* First control block of SKB */
+	struct enet_cb *last_cb;	/* Last control block of SKB */
 	unsigned int bytes_sent;	/* bytes on the wire (no TSB) */
 };
 
@@ -696,7 +698,7 @@ GENET_IO_MACRO(rbuf, GENET_RBUF_OFF);
 
 /* MDIO routines */
 int bcmgenet_mii_init(struct net_device *dev);
-int bcmgenet_mii_config(struct net_device *dev);
+int bcmgenet_mii_config(struct net_device *dev, bool init);
 int bcmgenet_mii_probe(struct net_device *dev);
 void bcmgenet_mii_exit(struct net_device *dev);
 void bcmgenet_mii_reset(struct net_device *dev);
diff --git a/drivers/net/ethernet/broadcom/genet/bcmmii.c b/drivers/net/ethernet/broadcom/genet/bcmmii.c
index 071fcbd14e6a..30cb97b4a1d7 100644
--- a/drivers/net/ethernet/broadcom/genet/bcmmii.c
+++ b/drivers/net/ethernet/broadcom/genet/bcmmii.c
@@ -238,7 +238,7 @@ static void bcmgenet_moca_phy_setup(struct bcmgenet_priv *priv)
 					  bcmgenet_fixed_phy_link_update);
 }
 
-int bcmgenet_mii_config(struct net_device *dev)
+int bcmgenet_mii_config(struct net_device *dev, bool init)
 {
 	struct bcmgenet_priv *priv = netdev_priv(dev);
 	struct phy_device *phydev = priv->phydev;
@@ -327,7 +327,8 @@ int bcmgenet_mii_config(struct net_device *dev)
 		bcmgenet_ext_writel(priv, reg, EXT_RGMII_OOB_CTRL);
 	}
 
-	dev_info_once(kdev, "configuring instance for %s\n", phy_name);
+	if (init)
+		dev_info(kdev, "configuring instance for %s\n", phy_name);
 
 	return 0;
 }
@@ -375,7 +376,7 @@ int bcmgenet_mii_probe(struct net_device *dev)
 	 * PHY speed which is needed for bcmgenet_mii_config() to configure
 	 * things appropriately.
 	 */
-	ret = bcmgenet_mii_config(dev);
+	ret = bcmgenet_mii_config(dev, true);
 	if (ret) {
 		phy_disconnect(priv->phydev);
 		return ret;
diff --git a/drivers/net/ethernet/cavium/liquidio/lio_ethtool.c b/drivers/net/ethernet/cavium/liquidio/lio_ethtool.c
index 28ecda3d3404..ebd353bc78ff 100644
--- a/drivers/net/ethernet/cavium/liquidio/lio_ethtool.c
+++ b/drivers/net/ethernet/cavium/liquidio/lio_ethtool.c
@@ -335,7 +335,7 @@ lio_ethtool_get_channels(struct net_device *dev,
 
 static int lio_get_eeprom_len(struct net_device *netdev)
 {
-	u8 buf[128];
+	u8 buf[192];
 	struct lio *lio = GET_LIO(netdev);
 	struct octeon_device *oct_dev = lio->oct_dev;
 	struct octeon_board_info *board_info;
diff --git a/drivers/net/ethernet/cavium/thunder/thunder_bgx.c b/drivers/net/ethernet/cavium/thunder/thunder_bgx.c
index a0ca68ce3fbb..5e5c4d7796b8 100644
--- a/drivers/net/ethernet/cavium/thunder/thunder_bgx.c
+++ b/drivers/net/ethernet/cavium/thunder/thunder_bgx.c
@@ -292,11 +292,30 @@ static void bgx_sgmii_change_link_state(struct lmac *lmac)
 	u64 cmr_cfg;
 	u64 port_cfg = 0;
 	u64 misc_ctl = 0;
+	bool tx_en, rx_en;
 
 	cmr_cfg = bgx_reg_read(bgx, lmac->lmacid, BGX_CMRX_CFG);
-	cmr_cfg &= ~CMR_EN;
+	tx_en = cmr_cfg & CMR_PKT_TX_EN;
+	rx_en = cmr_cfg & CMR_PKT_RX_EN;
+	cmr_cfg &= ~(CMR_PKT_RX_EN | CMR_PKT_TX_EN);
 	bgx_reg_write(bgx, lmac->lmacid, BGX_CMRX_CFG, cmr_cfg);
 
+	/* Wait for BGX RX to be idle */
+	if (bgx_poll_reg(bgx, lmac->lmacid, BGX_GMP_GMI_PRTX_CFG,
+			 GMI_PORT_CFG_RX_IDLE, false)) {
+		dev_err(&bgx->pdev->dev, "BGX%d LMAC%d GMI RX not idle\n",
+			bgx->bgx_id, lmac->lmacid);
+		return;
+	}
+
+	/* Wait for BGX TX to be idle */
+	if (bgx_poll_reg(bgx, lmac->lmacid, BGX_GMP_GMI_PRTX_CFG,
+			 GMI_PORT_CFG_TX_IDLE, false)) {
+		dev_err(&bgx->pdev->dev, "BGX%d LMAC%d GMI TX not idle\n",
+			bgx->bgx_id, lmac->lmacid);
+		return;
+	}
+
 	port_cfg = bgx_reg_read(bgx, lmac->lmacid, BGX_GMP_GMI_PRTX_CFG);
 	misc_ctl = bgx_reg_read(bgx, lmac->lmacid, BGX_GMP_PCS_MISCX_CTL);
 
@@ -347,10 +366,8 @@ static void bgx_sgmii_change_link_state(struct lmac *lmac)
 	bgx_reg_write(bgx, lmac->lmacid, BGX_GMP_PCS_MISCX_CTL, misc_ctl);
 	bgx_reg_write(bgx, lmac->lmacid, BGX_GMP_GMI_PRTX_CFG, port_cfg);
 
-	port_cfg = bgx_reg_read(bgx, lmac->lmacid, BGX_GMP_GMI_PRTX_CFG);
-
-	/* Re-enable lmac */
-	cmr_cfg |= CMR_EN;
+	/* Restore CMR config settings */
+	cmr_cfg |= (rx_en ? CMR_PKT_RX_EN : 0) | (tx_en ? CMR_PKT_TX_EN : 0);
 	bgx_reg_write(bgx, lmac->lmacid, BGX_CMRX_CFG, cmr_cfg);
 
 	if (bgx->is_rgx && (cmr_cfg & (CMR_PKT_RX_EN | CMR_PKT_TX_EN)))
@@ -1008,7 +1025,7 @@ static void bgx_print_qlm_mode(struct bgx *bgx, u8 lmacid)
 {
 	struct device *dev = &bgx->pdev->dev;
 	struct lmac *lmac;
-	char str[20];
+	char str[27];
 
 	if (!bgx->is_dlm && lmacid)
 		return;
diff --git a/drivers/net/ethernet/cavium/thunder/thunder_bgx.h b/drivers/net/ethernet/cavium/thunder/thunder_bgx.h
index 6b7fe6fdd13b..23acdc5ab896 100644
--- a/drivers/net/ethernet/cavium/thunder/thunder_bgx.h
+++ b/drivers/net/ethernet/cavium/thunder/thunder_bgx.h
@@ -170,6 +170,8 @@
 #define  GMI_PORT_CFG_DUPLEX			BIT_ULL(2)
 #define  GMI_PORT_CFG_SLOT_TIME			BIT_ULL(3)
 #define  GMI_PORT_CFG_SPEED_MSB			BIT_ULL(8)
+#define  GMI_PORT_CFG_RX_IDLE			BIT_ULL(12)
+#define  GMI_PORT_CFG_TX_IDLE			BIT_ULL(13)
 #define BGX_GMP_GMI_RXX_JABBER		0x38038
 #define BGX_GMP_GMI_TXX_THRESH		0x38210
 #define BGX_GMP_GMI_TXX_APPEND		0x38218
diff --git a/drivers/net/ethernet/chelsio/cxgb4/cxgb4.h b/drivers/net/ethernet/chelsio/cxgb4/cxgb4.h
index ef4be781fd05..09ea62ee96d3 100644
--- a/drivers/net/ethernet/chelsio/cxgb4/cxgb4.h
+++ b/drivers/net/ethernet/chelsio/cxgb4/cxgb4.h
@@ -529,6 +529,7 @@ enum {                                 /* adapter flags */
 	USING_SOFT_PARAMS  = (1 << 6),
 	MASTER_PF          = (1 << 7),
 	FW_OFLD_CONN       = (1 << 9),
+	ROOT_NO_RELAXED_ORDERING = (1 << 10),
 };
 
 enum {
diff --git a/drivers/net/ethernet/chelsio/cxgb4/cxgb4_main.c b/drivers/net/ethernet/chelsio/cxgb4/cxgb4_main.c
index 86f92e31e8aa..33bb8678833a 100644
--- a/drivers/net/ethernet/chelsio/cxgb4/cxgb4_main.c
+++ b/drivers/net/ethernet/chelsio/cxgb4/cxgb4_main.c
@@ -2083,12 +2083,12 @@ static void detach_ulds(struct adapter *adap)
 
 	mutex_lock(&uld_mutex);
 	list_del(&adap->list_node);
+
 	for (i = 0; i < CXGB4_ULD_MAX; i++)
-		if (adap->uld && adap->uld[i].handle) {
+		if (adap->uld && adap->uld[i].handle)
 			adap->uld[i].state_change(adap->uld[i].handle,
 					     CXGB4_STATE_DETACH);
-			adap->uld[i].handle = NULL;
-		}
+
 	if (netevent_registered && list_empty(&adapter_list)) {
 		unregister_netevent_notifier(&cxgb4_netevent_nb);
 		netevent_registered = false;
@@ -4654,11 +4654,6 @@ static void print_port_info(const struct net_device *dev)
 		    dev->name, adap->params.vpd.id, adap->name, buf);
 }
 
-static void enable_pcie_relaxed_ordering(struct pci_dev *dev)
-{
-	pcie_capability_set_word(dev, PCI_EXP_DEVCTL, PCI_EXP_DEVCTL_RELAX_EN);
-}
-
 /*
  * Free the following resources:
  * - memory used for tables
@@ -4908,7 +4903,6 @@ static int init_one(struct pci_dev *pdev, const struct pci_device_id *ent)
 	}
 
 	pci_enable_pcie_error_reporting(pdev);
-	enable_pcie_relaxed_ordering(pdev);
 	pci_set_master(pdev);
 	pci_save_state(pdev);
 
@@ -4947,6 +4941,23 @@ static int init_one(struct pci_dev *pdev, const struct pci_device_id *ent)
 	adapter->msg_enable = DFLT_MSG_ENABLE;
 	memset(adapter->chan_map, 0xff, sizeof(adapter->chan_map));
 
+	/* If possible, we use PCIe Relaxed Ordering Attribute to deliver
+	 * Ingress Packet Data to Free List Buffers in order to allow for
+	 * chipset performance optimizations between the Root Complex and
+	 * Memory Controllers.  (Messages to the associated Ingress Queue
+	 * notifying new Packet Placement in the Free Lists Buffers will be
+	 * send without the Relaxed Ordering Attribute thus guaranteeing that
+	 * all preceding PCIe Transaction Layer Packets will be processed
+	 * first.)  But some Root Complexes have various issues with Upstream
+	 * Transaction Layer Packets with the Relaxed Ordering Attribute set.
+	 * The PCIe devices which under the Root Complexes will be cleared the
+	 * Relaxed Ordering bit in the configuration space, So we check our
+	 * PCIe configuration space to see if it's flagged with advice against
+	 * using Relaxed Ordering.
+	 */
+	if (!pcie_relaxed_ordering_enabled(pdev))
+		adapter->flags |= ROOT_NO_RELAXED_ORDERING;
+
 	spin_lock_init(&adapter->stats_lock);
 	spin_lock_init(&adapter->tid_release_lock);
 	spin_lock_init(&adapter->win0_lock);
@@ -5303,8 +5314,10 @@ static void remove_one(struct pci_dev *pdev)
 		 */
 		destroy_workqueue(adapter->workq);
 
-		if (is_uld(adapter))
+		if (is_uld(adapter)) {
 			detach_ulds(adapter);
+			t4_uld_clean_up(adapter);
+		}
 
 		disable_interrupts(adapter);
 
@@ -5385,7 +5398,11 @@ static void shutdown_one(struct pci_dev *pdev)
 			if (adapter->port[i]->reg_state == NETREG_REGISTERED)
 				cxgb_close(adapter->port[i]);
 
-		t4_uld_clean_up(adapter);
+		if (is_uld(adapter)) {
+			detach_ulds(adapter);
+			t4_uld_clean_up(adapter);
+		}
+
 		disable_interrupts(adapter);
 		disable_msi(adapter);
 
diff --git a/drivers/net/ethernet/chelsio/cxgb4/cxgb4_ptp.c b/drivers/net/ethernet/chelsio/cxgb4/cxgb4_ptp.c
index 50517cfd9671..9f9d6cae39d5 100644
--- a/drivers/net/ethernet/chelsio/cxgb4/cxgb4_ptp.c
+++ b/drivers/net/ethernet/chelsio/cxgb4/cxgb4_ptp.c
@@ -441,7 +441,8 @@ void cxgb4_ptp_init(struct adapter *adapter)
 
 	adapter->ptp_clock = ptp_clock_register(&adapter->ptp_clock_info,
 						&adapter->pdev->dev);
-	if (!adapter->ptp_clock) {
+	if (IS_ERR_OR_NULL(adapter->ptp_clock)) {
+		adapter->ptp_clock = NULL;
 		dev_err(adapter->pdev_dev,
 			"PTP %s Clock registration has failed\n", __func__);
 		return;
diff --git a/drivers/net/ethernet/chelsio/cxgb4/cxgb4_uld.c b/drivers/net/ethernet/chelsio/cxgb4/cxgb4_uld.c
index ec53fe9dec68..71a315bc1409 100644
--- a/drivers/net/ethernet/chelsio/cxgb4/cxgb4_uld.c
+++ b/drivers/net/ethernet/chelsio/cxgb4/cxgb4_uld.c
@@ -589,22 +589,37 @@ void t4_uld_mem_free(struct adapter *adap)
 	kfree(adap->uld);
 }
 
+/* This function should be called with uld_mutex taken. */
+static void cxgb4_shutdown_uld_adapter(struct adapter *adap, enum cxgb4_uld type)
+{
+	if (adap->uld[type].handle) {
+		adap->uld[type].handle = NULL;
+		adap->uld[type].add = NULL;
+		release_sge_txq_uld(adap, type);
+
+		if (adap->flags & FULL_INIT_DONE)
+			quiesce_rx_uld(adap, type);
+
+		if (adap->flags & USING_MSIX)
+			free_msix_queue_irqs_uld(adap, type);
+
+		free_sge_queues_uld(adap, type);
+		free_queues_uld(adap, type);
+	}
+}
+
 void t4_uld_clean_up(struct adapter *adap)
 {
 	unsigned int i;
 
-	if (!adap->uld)
-		return;
+	mutex_lock(&uld_mutex);
 	for (i = 0; i < CXGB4_ULD_MAX; i++) {
 		if (!adap->uld[i].handle)
 			continue;
-		if (adap->flags & FULL_INIT_DONE)
-			quiesce_rx_uld(adap, i);
-		if (adap->flags & USING_MSIX)
-			free_msix_queue_irqs_uld(adap, i);
-		free_sge_queues_uld(adap, i);
-		free_queues_uld(adap, i);
+
+		cxgb4_shutdown_uld_adapter(adap, i);
 	}
+	mutex_unlock(&uld_mutex);
 }
 
 static void uld_init(struct adapter *adap, struct cxgb4_lld_info *lld)
@@ -783,15 +798,8 @@ int cxgb4_unregister_uld(enum cxgb4_uld type)
 			continue;
 		if (type == CXGB4_ULD_ISCSIT && is_t4(adap->params.chip))
 			continue;
-		adap->uld[type].handle = NULL;
-		adap->uld[type].add = NULL;
-		release_sge_txq_uld(adap, type);
-		if (adap->flags & FULL_INIT_DONE)
-			quiesce_rx_uld(adap, type);
-		if (adap->flags & USING_MSIX)
-			free_msix_queue_irqs_uld(adap, type);
-		free_sge_queues_uld(adap, type);
-		free_queues_uld(adap, type);
+
+		cxgb4_shutdown_uld_adapter(adap, type);
 	}
 	mutex_unlock(&uld_mutex);
 
diff --git a/drivers/net/ethernet/chelsio/cxgb4/sge.c b/drivers/net/ethernet/chelsio/cxgb4/sge.c
index ede12209f20b..4ef68f69b58c 100644
--- a/drivers/net/ethernet/chelsio/cxgb4/sge.c
+++ b/drivers/net/ethernet/chelsio/cxgb4/sge.c
@@ -2719,6 +2719,7 @@ int t4_sge_alloc_rxq(struct adapter *adap, struct sge_rspq *iq, bool fwevtq,
 	struct fw_iq_cmd c;
 	struct sge *s = &adap->sge;
 	struct port_info *pi = netdev_priv(dev);
+	int relaxed = !(adap->flags & ROOT_NO_RELAXED_ORDERING);
 
 	/* Size needs to be multiple of 16, including status entry. */
 	iq->size = roundup(iq->size, 16);
@@ -2772,8 +2773,8 @@ int t4_sge_alloc_rxq(struct adapter *adap, struct sge_rspq *iq, bool fwevtq,
 
 		flsz = fl->size / 8 + s->stat_len / sizeof(struct tx_desc);
 		c.iqns_to_fl0congen |= htonl(FW_IQ_CMD_FL0PACKEN_F |
-					     FW_IQ_CMD_FL0FETCHRO_F |
-					     FW_IQ_CMD_FL0DATARO_F |
+					     FW_IQ_CMD_FL0FETCHRO_V(relaxed) |
+					     FW_IQ_CMD_FL0DATARO_V(relaxed) |
 					     FW_IQ_CMD_FL0PADEN_F);
 		if (cong >= 0)
 			c.iqns_to_fl0congen |=
diff --git a/drivers/net/ethernet/chelsio/cxgb4/t4_pci_id_tbl.h b/drivers/net/ethernet/chelsio/cxgb4/t4_pci_id_tbl.h
index 99987d8e437e..aa28299aef5f 100644
--- a/drivers/net/ethernet/chelsio/cxgb4/t4_pci_id_tbl.h
+++ b/drivers/net/ethernet/chelsio/cxgb4/t4_pci_id_tbl.h
@@ -174,6 +174,8 @@ CH_PCI_DEVICE_ID_TABLE_DEFINE_BEGIN
 	CH_PCI_ID_TABLE_FENTRY(0x50a0), /* Custom T540-CR */
 	CH_PCI_ID_TABLE_FENTRY(0x50a1), /* Custom T540-CR */
 	CH_PCI_ID_TABLE_FENTRY(0x50a2), /* Custom T540-KR4 */
+	CH_PCI_ID_TABLE_FENTRY(0x50a3), /* Custom T580-KR4 */
+	CH_PCI_ID_TABLE_FENTRY(0x50a4), /* Custom 2x T540-CR */
 
 	/* T6 adapters:
 	 */
diff --git a/drivers/net/ethernet/chelsio/cxgb4vf/adapter.h b/drivers/net/ethernet/chelsio/cxgb4vf/adapter.h
index 109bc630408b..08c6ddb84a04 100644
--- a/drivers/net/ethernet/chelsio/cxgb4vf/adapter.h
+++ b/drivers/net/ethernet/chelsio/cxgb4vf/adapter.h
@@ -408,6 +408,7 @@ enum { /* adapter flags */
 	USING_MSI          = (1UL << 1),
 	USING_MSIX         = (1UL << 2),
 	QUEUES_BOUND       = (1UL << 3),
+	ROOT_NO_RELAXED_ORDERING = (1UL << 4),
 };
 
 /*
diff --git a/drivers/net/ethernet/chelsio/cxgb4vf/cxgb4vf_main.c b/drivers/net/ethernet/chelsio/cxgb4vf/cxgb4vf_main.c
index ac7a150c54e9..2b85b874fd0d 100644
--- a/drivers/net/ethernet/chelsio/cxgb4vf/cxgb4vf_main.c
+++ b/drivers/net/ethernet/chelsio/cxgb4vf/cxgb4vf_main.c
@@ -2888,6 +2888,24 @@ static int cxgb4vf_pci_probe(struct pci_dev *pdev,
 	 */
 	adapter->name = pci_name(pdev);
 	adapter->msg_enable = DFLT_MSG_ENABLE;
+
+	/* If possible, we use PCIe Relaxed Ordering Attribute to deliver
+	 * Ingress Packet Data to Free List Buffers in order to allow for
+	 * chipset performance optimizations between the Root Complex and
+	 * Memory Controllers.  (Messages to the associated Ingress Queue
+	 * notifying new Packet Placement in the Free Lists Buffers will be
+	 * send without the Relaxed Ordering Attribute thus guaranteeing that
+	 * all preceding PCIe Transaction Layer Packets will be processed
+	 * first.)  But some Root Complexes have various issues with Upstream
+	 * Transaction Layer Packets with the Relaxed Ordering Attribute set.
+	 * The PCIe devices which under the Root Complexes will be cleared the
+	 * Relaxed Ordering bit in the configuration space, So we check our
+	 * PCIe configuration space to see if it's flagged with advice against
+	 * using Relaxed Ordering.
+	 */
+	if (!pcie_relaxed_ordering_enabled(pdev))
+		adapter->flags |= ROOT_NO_RELAXED_ORDERING;
+
 	err = adap_init0(adapter);
 	if (err)
 		goto err_unmap_bar;
diff --git a/drivers/net/ethernet/chelsio/cxgb4vf/sge.c b/drivers/net/ethernet/chelsio/cxgb4vf/sge.c
index e37dde2ba97f..05498e7f2840 100644
--- a/drivers/net/ethernet/chelsio/cxgb4vf/sge.c
+++ b/drivers/net/ethernet/chelsio/cxgb4vf/sge.c
@@ -2205,6 +2205,7 @@ int t4vf_sge_alloc_rxq(struct adapter *adapter, struct sge_rspq *rspq,
 	struct port_info *pi = netdev_priv(dev);
 	struct fw_iq_cmd cmd, rpl;
 	int ret, iqandst, flsz = 0;
+	int relaxed = !(adapter->flags & ROOT_NO_RELAXED_ORDERING);
 
 	/*
 	 * If we're using MSI interrupts and we're not initializing the
@@ -2300,6 +2301,8 @@ int t4vf_sge_alloc_rxq(struct adapter *adapter, struct sge_rspq *rspq,
 			cpu_to_be32(
 				FW_IQ_CMD_FL0HOSTFCMODE_V(SGE_HOSTFCMODE_NONE) |
 				FW_IQ_CMD_FL0PACKEN_F |
+				FW_IQ_CMD_FL0FETCHRO_V(relaxed) |
+				FW_IQ_CMD_FL0DATARO_V(relaxed) |
 				FW_IQ_CMD_FL0PADEN_F);
 
 		/* In T6, for egress queue type FL there is internal overhead
diff --git a/drivers/net/ethernet/cisco/enic/vnic_dev.c b/drivers/net/ethernet/cisco/enic/vnic_dev.c
index 1841ad45d215..39bad67422dd 100644
--- a/drivers/net/ethernet/cisco/enic/vnic_dev.c
+++ b/drivers/net/ethernet/cisco/enic/vnic_dev.c
@@ -402,8 +402,8 @@ static int vnic_dev_init_devcmd2(struct vnic_dev *vdev)
 	fetch_index = ioread32(&vdev->devcmd2->wq.ctrl->fetch_index);
 	if (fetch_index == 0xFFFFFFFF) { /* check for hardware gone  */
 		vdev_err(vdev, "Fatal error in devcmd2 init - hardware surprise removal\n");
-
-		return -ENODEV;
+		err = -ENODEV;
+		goto err_free_wq;
 	}
 
 	enic_wq_init_start(&vdev->devcmd2->wq, 0, fetch_index, fetch_index, 0,
@@ -414,7 +414,7 @@ static int vnic_dev_init_devcmd2(struct vnic_dev *vdev)
 	err = vnic_dev_alloc_desc_ring(vdev, &vdev->devcmd2->results_ring,
 				       DEVCMD2_RING_SIZE, DEVCMD2_DESC_SIZE);
 	if (err)
-		goto err_free_wq;
+		goto err_disable_wq;
 
 	vdev->devcmd2->result = vdev->devcmd2->results_ring.descs;
 	vdev->devcmd2->cmd_ring = vdev->devcmd2->wq.ring.descs;
@@ -433,8 +433,9 @@ static int vnic_dev_init_devcmd2(struct vnic_dev *vdev)
 
 err_free_desc_ring:
 	vnic_dev_free_desc_ring(vdev, &vdev->devcmd2->results_ring);
-err_free_wq:
+err_disable_wq:
 	vnic_wq_disable(&vdev->devcmd2->wq);
+err_free_wq:
 	vnic_wq_free(&vdev->devcmd2->wq);
 err_free_devcmd2:
 	kfree(vdev->devcmd2);
diff --git a/drivers/net/ethernet/faraday/ftgmac100.c b/drivers/net/ethernet/faraday/ftgmac100.c
index 95bf5e89cfd1..34dae51effd4 100644
--- a/drivers/net/ethernet/faraday/ftgmac100.c
+++ b/drivers/net/ethernet/faraday/ftgmac100.c
@@ -125,7 +125,7 @@ static int ftgmac100_reset_mac(struct ftgmac100 *priv, u32 maccr)
 	iowrite32(maccr, priv->base + FTGMAC100_OFFSET_MACCR);
 	iowrite32(maccr | FTGMAC100_MACCR_SW_RST,
 		  priv->base + FTGMAC100_OFFSET_MACCR);
-	for (i = 0; i < 50; i++) {
+	for (i = 0; i < 200; i++) {
 		unsigned int maccr;
 
 		maccr = ioread32(priv->base + FTGMAC100_OFFSET_MACCR);
@@ -392,7 +392,7 @@ static int ftgmac100_alloc_rx_buf(struct ftgmac100 *priv, unsigned int entry,
 	struct net_device *netdev = priv->netdev;
 	struct sk_buff *skb;
 	dma_addr_t map;
-	int err;
+	int err = 0;
 
 	skb = netdev_alloc_skb_ip_align(netdev, RX_BUF_SIZE);
 	if (unlikely(!skb)) {
@@ -428,7 +428,7 @@ static int ftgmac100_alloc_rx_buf(struct ftgmac100 *priv, unsigned int entry,
 	else
 		rxdes->rxdes0 = 0;
 
-	return 0;
+	return err;
 }
 
 static unsigned int ftgmac100_next_rx_pointer(struct ftgmac100 *priv,
@@ -1682,6 +1682,7 @@ static int ftgmac100_setup_mdio(struct net_device *netdev)
 	priv->mii_bus->name = "ftgmac100_mdio";
 	snprintf(priv->mii_bus->id, MII_BUS_ID_SIZE, "%s-%d",
 		 pdev->name, pdev->id);
+	priv->mii_bus->parent = priv->dev;
 	priv->mii_bus->priv = priv->netdev;
 	priv->mii_bus->read = ftgmac100_mdiobus_read;
 	priv->mii_bus->write = ftgmac100_mdiobus_write;
diff --git a/drivers/net/ethernet/hisilicon/hns/hns_ae_adapt.c b/drivers/net/ethernet/hisilicon/hns/hns_ae_adapt.c
index ff864a187d5a..a37166ee577b 100644
--- a/drivers/net/ethernet/hisilicon/hns/hns_ae_adapt.c
+++ b/drivers/net/ethernet/hisilicon/hns/hns_ae_adapt.c
@@ -776,8 +776,9 @@ void hns_ae_update_led_status(struct hnae_handle *handle)
 
 	assert(handle);
 	mac_cb = hns_get_mac_cb(handle);
-	if (!mac_cb->cpld_ctrl)
+	if (mac_cb->media_type != HNAE_MEDIA_TYPE_FIBER)
 		return;
+
 	hns_set_led_opt(mac_cb);
 }
 
diff --git a/drivers/net/ethernet/hisilicon/hns/hns_dsaf_misc.c b/drivers/net/ethernet/hisilicon/hns/hns_dsaf_misc.c
index 7a8addda726e..408b63faf9a8 100644
--- a/drivers/net/ethernet/hisilicon/hns/hns_dsaf_misc.c
+++ b/drivers/net/ethernet/hisilicon/hns/hns_dsaf_misc.c
@@ -53,6 +53,34 @@ static u32 dsaf_read_sub(struct dsaf_device *dsaf_dev, u32 reg)
 	return ret;
 }
 
+static void hns_dsaf_acpi_ledctrl_by_port(struct hns_mac_cb *mac_cb, u8 op_type,
+                                      u32 link, u32 port, u32 act)
+{
+       union acpi_object *obj;
+       union acpi_object obj_args[3], argv4;
+
+       obj_args[0].integer.type = ACPI_TYPE_INTEGER;
+       obj_args[0].integer.value = link;
+       obj_args[1].integer.type = ACPI_TYPE_INTEGER;
+       obj_args[1].integer.value = port;
+       obj_args[2].integer.type = ACPI_TYPE_INTEGER;
+       obj_args[2].integer.value = act;
+
+       argv4.type = ACPI_TYPE_PACKAGE;
+       argv4.package.count = 3;
+       argv4.package.elements = obj_args;
+
+       obj = acpi_evaluate_dsm(ACPI_HANDLE(mac_cb->dev),
+                               &hns_dsaf_acpi_dsm_guid, 0, op_type, &argv4);
+       if (!obj) {
+               dev_warn(mac_cb->dev, "ledctrl fail, link:%d port:%d act:%d!\n",
+                        link, port, act);
+               return;
+       }
+
+       ACPI_FREE(obj);
+}
+
 static void hns_cpld_set_led(struct hns_mac_cb *mac_cb, int link_status,
 			     u16 speed, int data)
 {
@@ -93,6 +121,18 @@ static void hns_cpld_set_led(struct hns_mac_cb *mac_cb, int link_status,
 	}
 }
 
+static void hns_cpld_set_led_acpi(struct hns_mac_cb *mac_cb, int link_status,
+                            u16 speed, int data)
+{
+       if (!mac_cb) {
+               pr_err("cpld_led_set mac_cb is null!\n");
+               return;
+       }
+
+       hns_dsaf_acpi_ledctrl_by_port(mac_cb, HNS_OP_LED_SET_FUNC,
+               link_status, mac_cb->mac_id, data);
+}
+
 static void cpld_led_reset(struct hns_mac_cb *mac_cb)
 {
 	if (!mac_cb || !mac_cb->cpld_ctrl)
@@ -103,6 +143,20 @@ static void cpld_led_reset(struct hns_mac_cb *mac_cb)
 	mac_cb->cpld_led_value = CPLD_LED_DEFAULT_VALUE;
 }
 
+static void cpld_led_reset_acpi(struct hns_mac_cb *mac_cb)
+{
+       if (!mac_cb) {
+               pr_err("cpld_led_reset mac_cb is null!\n");
+               return;
+       }
+
+       if (mac_cb->media_type != HNAE_MEDIA_TYPE_FIBER)
+                return;
+
+       hns_dsaf_acpi_ledctrl_by_port(mac_cb, HNS_OP_LED_SET_FUNC,
+               0, mac_cb->mac_id, 0);
+}
+
 static int cpld_set_led_id(struct hns_mac_cb *mac_cb,
 			   enum hnae_led_state status)
 {
@@ -604,8 +658,8 @@ struct dsaf_misc_op *hns_misc_op_get(struct dsaf_device *dsaf_dev)
 
 		misc_op->cfg_serdes_loopback = hns_mac_config_sds_loopback;
 	} else if (is_acpi_node(dsaf_dev->dev->fwnode)) {
-		misc_op->cpld_set_led = hns_cpld_set_led;
-		misc_op->cpld_reset_led = cpld_led_reset;
+		misc_op->cpld_set_led = hns_cpld_set_led_acpi;
+		misc_op->cpld_reset_led = cpld_led_reset_acpi;
 		misc_op->cpld_set_led_id = cpld_set_led_id;
 
 		misc_op->dsaf_reset = hns_dsaf_rst_acpi;
diff --git a/drivers/net/ethernet/hisilicon/hns/hns_enet.c b/drivers/net/ethernet/hisilicon/hns/hns_enet.c
index fe166e0f6781..3987699f8fe6 100644
--- a/drivers/net/ethernet/hisilicon/hns/hns_enet.c
+++ b/drivers/net/ethernet/hisilicon/hns/hns_enet.c
@@ -1378,13 +1378,20 @@ void hns_nic_net_reset(struct net_device *ndev)
 void hns_nic_net_reinit(struct net_device *netdev)
 {
 	struct hns_nic_priv *priv = netdev_priv(netdev);
+	enum hnae_port_type type = priv->ae_handle->port_type;
 
 	netif_trans_update(priv->netdev);
 	while (test_and_set_bit(NIC_STATE_REINITING, &priv->state))
 		usleep_range(1000, 2000);
 
 	hns_nic_net_down(netdev);
-	hns_nic_net_reset(netdev);
+
+	/* Only do hns_nic_net_reset in debug mode
+	 * because of hardware limitation.
+	 */
+	if (type == HNAE_PORT_DEBUG)
+		hns_nic_net_reset(netdev);
+
 	(void)hns_nic_net_up(netdev);
 	clear_bit(NIC_STATE_REINITING, &priv->state);
 }
@@ -1997,13 +2004,8 @@ static void hns_nic_reset_subtask(struct hns_nic_priv *priv)
 	rtnl_lock();
 	/* put off any impending NetWatchDogTimeout */
 	netif_trans_update(priv->netdev);
+	hns_nic_net_reinit(priv->netdev);
 
-	if (type == HNAE_PORT_DEBUG) {
-		hns_nic_net_reinit(priv->netdev);
-	} else {
-		netif_carrier_off(priv->netdev);
-		netif_tx_disable(priv->netdev);
-	}
 	rtnl_unlock();
 }
 
diff --git a/drivers/net/ethernet/ibm/ibmvnic.c b/drivers/net/ethernet/ibm/ibmvnic.c
index a3e694679635..c45e8e3b82d3 100644
--- a/drivers/net/ethernet/ibm/ibmvnic.c
+++ b/drivers/net/ethernet/ibm/ibmvnic.c
@@ -111,6 +111,7 @@ static void send_request_map(struct ibmvnic_adapter *, dma_addr_t, __be32, u8);
 static void send_request_unmap(struct ibmvnic_adapter *, u8);
 static void send_login(struct ibmvnic_adapter *adapter);
 static void send_cap_queries(struct ibmvnic_adapter *adapter);
+static int init_sub_crqs(struct ibmvnic_adapter *);
 static int init_sub_crq_irqs(struct ibmvnic_adapter *adapter);
 static int ibmvnic_init(struct ibmvnic_adapter *);
 static void release_crq_queue(struct ibmvnic_adapter *);
@@ -651,6 +652,7 @@ static int ibmvnic_login(struct net_device *netdev)
 	struct ibmvnic_adapter *adapter = netdev_priv(netdev);
 	unsigned long timeout = msecs_to_jiffies(30000);
 	struct device *dev = &adapter->vdev->dev;
+	int rc;
 
 	do {
 		if (adapter->renegotiate) {
@@ -664,6 +666,18 @@ static int ibmvnic_login(struct net_device *netdev)
 				dev_err(dev, "Capabilities query timeout\n");
 				return -1;
 			}
+			rc = init_sub_crqs(adapter);
+			if (rc) {
+				dev_err(dev,
+					"Initialization of SCRQ's failed\n");
+				return -1;
+			}
+			rc = init_sub_crq_irqs(adapter);
+			if (rc) {
+				dev_err(dev,
+					"Initialization of SCRQ's irqs failed\n");
+				return -1;
+			}
 		}
 
 		reinit_completion(&adapter->init_done);
@@ -3004,7 +3018,6 @@ static void handle_request_cap_rsp(union ibmvnic_crq *crq,
 			 *req_value,
 			 (long int)be64_to_cpu(crq->request_capability_rsp.
 					       number), name);
-		release_sub_crqs(adapter);
 		*req_value = be64_to_cpu(crq->request_capability_rsp.number);
 		ibmvnic_send_req_caps(adapter, 1);
 		return;
diff --git a/drivers/net/ethernet/intel/i40e/i40e_txrx.c b/drivers/net/ethernet/intel/i40e/i40e_txrx.c
index b936febc315a..2194960d5855 100644
--- a/drivers/net/ethernet/intel/i40e/i40e_txrx.c
+++ b/drivers/net/ethernet/intel/i40e/i40e_txrx.c
@@ -1113,6 +1113,8 @@ int i40e_setup_tx_descriptors(struct i40e_ring *tx_ring)
 	if (!tx_ring->tx_bi)
 		goto err;
 
+	u64_stats_init(&tx_ring->syncp);
+
 	/* round up to nearest 4K */
 	tx_ring->size = tx_ring->count * sizeof(struct i40e_tx_desc);
 	/* add u32 for head writeback, align after this takes care of
diff --git a/drivers/net/ethernet/intel/ixgbevf/ixgbevf_main.c b/drivers/net/ethernet/intel/ixgbevf/ixgbevf_main.c
index 084c53582793..032f8ac06357 100644
--- a/drivers/net/ethernet/intel/ixgbevf/ixgbevf_main.c
+++ b/drivers/net/ethernet/intel/ixgbevf/ixgbevf_main.c
@@ -2988,6 +2988,8 @@ int ixgbevf_setup_tx_resources(struct ixgbevf_ring *tx_ring)
 	if (!tx_ring->tx_buffer_info)
 		goto err;
 
+	u64_stats_init(&tx_ring->syncp);
+
 	/* round up to nearest 4K */
 	tx_ring->size = tx_ring->count * sizeof(union ixgbe_adv_tx_desc);
 	tx_ring->size = ALIGN(tx_ring->size, 4096);
@@ -3046,6 +3048,8 @@ int ixgbevf_setup_rx_resources(struct ixgbevf_ring *rx_ring)
 	if (!rx_ring->rx_buffer_info)
 		goto err;
 
+	u64_stats_init(&rx_ring->syncp);
+
 	/* Round up to nearest 4K */
 	rx_ring->size = rx_ring->count * sizeof(union ixgbe_adv_rx_desc);
 	rx_ring->size = ALIGN(rx_ring->size, 4096);
diff --git a/drivers/net/ethernet/marvell/mv643xx_eth.c b/drivers/net/ethernet/marvell/mv643xx_eth.c
index 5794d98d946f..9c94ea9b2b80 100644
--- a/drivers/net/ethernet/marvell/mv643xx_eth.c
+++ b/drivers/net/ethernet/marvell/mv643xx_eth.c
@@ -2734,7 +2734,7 @@ static int mv643xx_eth_shared_of_add_port(struct platform_device *pdev,
 	ppd.shared = pdev;
 
 	memset(&res, 0, sizeof(res));
-	if (!of_irq_to_resource(pnp, 0, &res)) {
+	if (of_irq_to_resource(pnp, 0, &res) <= 0) {
 		dev_err(&pdev->dev, "missing interrupt on %s\n", pnp->name);
 		return -EINVAL;
 	}
diff --git a/drivers/net/ethernet/mediatek/mtk_eth_soc.c b/drivers/net/ethernet/mediatek/mtk_eth_soc.c
index b3d0c2e6347a..e588a0cdb074 100644
--- a/drivers/net/ethernet/mediatek/mtk_eth_soc.c
+++ b/drivers/net/ethernet/mediatek/mtk_eth_soc.c
@@ -22,6 +22,7 @@
 #include <linux/if_vlan.h>
 #include <linux/reset.h>
 #include <linux/tcp.h>
+#include <linux/interrupt.h>
 
 #include "mtk_eth_soc.h"
 
@@ -947,6 +948,10 @@ static int mtk_poll_rx(struct napi_struct *napi, int budget,
 		      RX_DMA_FPORT_MASK;
 		mac--;
 
+		if (unlikely(mac < 0 || mac >= MTK_MAC_COUNT ||
+			     !eth->netdev[mac]))
+			goto release_desc;
+
 		netdev = eth->netdev[mac];
 
 		if (unlikely(test_bit(MTK_RESETTING, &eth->state)))
diff --git a/drivers/net/ethernet/mellanox/mlx4/alloc.c b/drivers/net/ethernet/mellanox/mlx4/alloc.c
index 249a4584401a..b651c1210555 100644
--- a/drivers/net/ethernet/mellanox/mlx4/alloc.c
+++ b/drivers/net/ethernet/mellanox/mlx4/alloc.c
@@ -283,7 +283,7 @@ int mlx4_zone_add_one(struct mlx4_zone_allocator *zone_alloc,
 }
 
 /* Should be called under a lock */
-static int __mlx4_zone_remove_one_entry(struct mlx4_zone_entry *entry)
+static void __mlx4_zone_remove_one_entry(struct mlx4_zone_entry *entry)
 {
 	struct mlx4_zone_allocator *zone_alloc = entry->allocator;
 
@@ -315,8 +315,6 @@ static int __mlx4_zone_remove_one_entry(struct mlx4_zone_entry *entry)
 		}
 		zone_alloc->mask = mask;
 	}
-
-	return 0;
 }
 
 void mlx4_zone_allocator_destroy(struct mlx4_zone_allocator *zone_alloc)
@@ -457,7 +455,7 @@ struct mlx4_bitmap *mlx4_zone_get_bitmap(struct mlx4_zone_allocator *zones, u32
 int mlx4_zone_remove_one(struct mlx4_zone_allocator *zones, u32 uid)
 {
 	struct mlx4_zone_entry *zone;
-	int res;
+	int res = 0;
 
 	spin_lock(&zones->lock);
 
@@ -468,7 +466,7 @@ int mlx4_zone_remove_one(struct mlx4_zone_allocator *zones, u32 uid)
 		goto out;
 	}
 
-	res = __mlx4_zone_remove_one_entry(zone);
+	__mlx4_zone_remove_one_entry(zone);
 
 out:
 	spin_unlock(&zones->lock);
@@ -578,7 +576,7 @@ out:
 }
 
 static int mlx4_buf_direct_alloc(struct mlx4_dev *dev, int size,
-				 struct mlx4_buf *buf, gfp_t gfp)
+				 struct mlx4_buf *buf)
 {
 	dma_addr_t t;
 
@@ -587,7 +585,7 @@ static int mlx4_buf_direct_alloc(struct mlx4_dev *dev, int size,
 	buf->page_shift   = get_order(size) + PAGE_SHIFT;
 	buf->direct.buf   =
 		dma_zalloc_coherent(&dev->persist->pdev->dev,
-				    size, &t, gfp);
+				    size, &t, GFP_KERNEL);
 	if (!buf->direct.buf)
 		return -ENOMEM;
 
@@ -607,10 +605,10 @@ static int mlx4_buf_direct_alloc(struct mlx4_dev *dev, int size,
  *  multiple pages, so we don't require too much contiguous memory.
  */
 int mlx4_buf_alloc(struct mlx4_dev *dev, int size, int max_direct,
-		   struct mlx4_buf *buf, gfp_t gfp)
+		   struct mlx4_buf *buf)
 {
 	if (size <= max_direct) {
-		return mlx4_buf_direct_alloc(dev, size, buf, gfp);
+		return mlx4_buf_direct_alloc(dev, size, buf);
 	} else {
 		dma_addr_t t;
 		int i;
@@ -620,14 +618,14 @@ int mlx4_buf_alloc(struct mlx4_dev *dev, int size, int max_direct,
 		buf->npages	= buf->nbufs;
 		buf->page_shift  = PAGE_SHIFT;
 		buf->page_list   = kcalloc(buf->nbufs, sizeof(*buf->page_list),
-					   gfp);
+					   GFP_KERNEL);
 		if (!buf->page_list)
 			return -ENOMEM;
 
 		for (i = 0; i < buf->nbufs; ++i) {
 			buf->page_list[i].buf =
 				dma_zalloc_coherent(&dev->persist->pdev->dev,
-						    PAGE_SIZE, &t, gfp);
+						    PAGE_SIZE, &t, GFP_KERNEL);
 			if (!buf->page_list[i].buf)
 				goto err_free;
 
@@ -663,12 +661,11 @@ void mlx4_buf_free(struct mlx4_dev *dev, int size, struct mlx4_buf *buf)
 }
 EXPORT_SYMBOL_GPL(mlx4_buf_free);
 
-static struct mlx4_db_pgdir *mlx4_alloc_db_pgdir(struct device *dma_device,
-						 gfp_t gfp)
+static struct mlx4_db_pgdir *mlx4_alloc_db_pgdir(struct device *dma_device)
 {
 	struct mlx4_db_pgdir *pgdir;
 
-	pgdir = kzalloc(sizeof *pgdir, gfp);
+	pgdir = kzalloc(sizeof(*pgdir), GFP_KERNEL);
 	if (!pgdir)
 		return NULL;
 
@@ -676,7 +673,7 @@ static struct mlx4_db_pgdir *mlx4_alloc_db_pgdir(struct device *dma_device,
 	pgdir->bits[0] = pgdir->order0;
 	pgdir->bits[1] = pgdir->order1;
 	pgdir->db_page = dma_alloc_coherent(dma_device, PAGE_SIZE,
-					    &pgdir->db_dma, gfp);
+					    &pgdir->db_dma, GFP_KERNEL);
 	if (!pgdir->db_page) {
 		kfree(pgdir);
 		return NULL;
@@ -716,7 +713,7 @@ found:
 	return 0;
 }
 
-int mlx4_db_alloc(struct mlx4_dev *dev, struct mlx4_db *db, int order, gfp_t gfp)
+int mlx4_db_alloc(struct mlx4_dev *dev, struct mlx4_db *db, int order)
 {
 	struct mlx4_priv *priv = mlx4_priv(dev);
 	struct mlx4_db_pgdir *pgdir;
@@ -728,7 +725,7 @@ int mlx4_db_alloc(struct mlx4_dev *dev, struct mlx4_db *db, int order, gfp_t gfp
 		if (!mlx4_alloc_db_from_pgdir(pgdir, db, order))
 			goto out;
 
-	pgdir = mlx4_alloc_db_pgdir(&dev->persist->pdev->dev, gfp);
+	pgdir = mlx4_alloc_db_pgdir(&dev->persist->pdev->dev);
 	if (!pgdir) {
 		ret = -ENOMEM;
 		goto out;
@@ -780,13 +777,13 @@ int mlx4_alloc_hwq_res(struct mlx4_dev *dev, struct mlx4_hwq_resources *wqres,
 {
 	int err;
 
-	err = mlx4_db_alloc(dev, &wqres->db, 1, GFP_KERNEL);
+	err = mlx4_db_alloc(dev, &wqres->db, 1);
 	if (err)
 		return err;
 
 	*wqres->db.db = 0;
 
-	err = mlx4_buf_direct_alloc(dev, size, &wqres->buf, GFP_KERNEL);
+	err = mlx4_buf_direct_alloc(dev, size, &wqres->buf);
 	if (err)
 		goto err_db;
 
@@ -795,7 +792,7 @@ int mlx4_alloc_hwq_res(struct mlx4_dev *dev, struct mlx4_hwq_resources *wqres,
 	if (err)
 		goto err_buf;
 
-	err = mlx4_buf_write_mtt(dev, &wqres->mtt, &wqres->buf, GFP_KERNEL);
+	err = mlx4_buf_write_mtt(dev, &wqres->mtt, &wqres->buf);
 	if (err)
 		goto err_mtt;
 
diff --git a/drivers/net/ethernet/mellanox/mlx4/cq.c b/drivers/net/ethernet/mellanox/mlx4/cq.c
index fa6d2354a0e9..c56a511b918e 100644
--- a/drivers/net/ethernet/mellanox/mlx4/cq.c
+++ b/drivers/net/ethernet/mellanox/mlx4/cq.c
@@ -224,11 +224,11 @@ int __mlx4_cq_alloc_icm(struct mlx4_dev *dev, int *cqn)
 	if (*cqn == -1)
 		return -ENOMEM;
 
-	err = mlx4_table_get(dev, &cq_table->table, *cqn, GFP_KERNEL);
+	err = mlx4_table_get(dev, &cq_table->table, *cqn);
 	if (err)
 		goto err_out;
 
-	err = mlx4_table_get(dev, &cq_table->cmpt_table, *cqn, GFP_KERNEL);
+	err = mlx4_table_get(dev, &cq_table->cmpt_table, *cqn);
 	if (err)
 		goto err_put;
 	return 0;
diff --git a/drivers/net/ethernet/mellanox/mlx4/en_ethtool.c b/drivers/net/ethernet/mellanox/mlx4/en_ethtool.c
index c751a1d434ad..3d4e4a5d00d1 100644
--- a/drivers/net/ethernet/mellanox/mlx4/en_ethtool.c
+++ b/drivers/net/ethernet/mellanox/mlx4/en_ethtool.c
@@ -223,6 +223,7 @@ static void mlx4_en_get_wol(struct net_device *netdev,
 			    struct ethtool_wolinfo *wol)
 {
 	struct mlx4_en_priv *priv = netdev_priv(netdev);
+	struct mlx4_caps *caps = &priv->mdev->dev->caps;
 	int err = 0;
 	u64 config = 0;
 	u64 mask;
@@ -235,24 +236,24 @@ static void mlx4_en_get_wol(struct net_device *netdev,
 	mask = (priv->port == 1) ? MLX4_DEV_CAP_FLAG_WOL_PORT1 :
 		MLX4_DEV_CAP_FLAG_WOL_PORT2;
 
-	if (!(priv->mdev->dev->caps.flags & mask)) {
+	if (!(caps->flags & mask)) {
 		wol->supported = 0;
 		wol->wolopts = 0;
 		return;
 	}
 
+	if (caps->wol_port[priv->port])
+		wol->supported = WAKE_MAGIC;
+	else
+		wol->supported = 0;
+
 	err = mlx4_wol_read(priv->mdev->dev, &config, priv->port);
 	if (err) {
 		en_err(priv, "Failed to get WoL information\n");
 		return;
 	}
 
-	if (config & MLX4_EN_WOL_MAGIC)
-		wol->supported = WAKE_MAGIC;
-	else
-		wol->supported = 0;
-
-	if (config & MLX4_EN_WOL_ENABLED)
+	if ((config & MLX4_EN_WOL_ENABLED) && (config & MLX4_EN_WOL_MAGIC))
 		wol->wolopts = WAKE_MAGIC;
 	else
 		wol->wolopts = 0;
diff --git a/drivers/net/ethernet/mellanox/mlx4/en_rx.c b/drivers/net/ethernet/mellanox/mlx4/en_rx.c
index e5fb89505a13..bf1638044a7a 100644
--- a/drivers/net/ethernet/mellanox/mlx4/en_rx.c
+++ b/drivers/net/ethernet/mellanox/mlx4/en_rx.c
@@ -574,16 +574,21 @@ static inline __wsum get_fixed_vlan_csum(__wsum hw_checksum,
  * header, the HW adds it. To address that, we are subtracting the pseudo
  * header checksum from the checksum value provided by the HW.
  */
-static void get_fixed_ipv4_csum(__wsum hw_checksum, struct sk_buff *skb,
-				struct iphdr *iph)
+static int get_fixed_ipv4_csum(__wsum hw_checksum, struct sk_buff *skb,
+			       struct iphdr *iph)
 {
 	__u16 length_for_csum = 0;
 	__wsum csum_pseudo_header = 0;
+	__u8 ipproto = iph->protocol;
+
+	if (unlikely(ipproto == IPPROTO_SCTP))
+		return -1;
 
 	length_for_csum = (be16_to_cpu(iph->tot_len) - (iph->ihl << 2));
 	csum_pseudo_header = csum_tcpudp_nofold(iph->saddr, iph->daddr,
-						length_for_csum, iph->protocol, 0);
+						length_for_csum, ipproto, 0);
 	skb->csum = csum_sub(hw_checksum, csum_pseudo_header);
+	return 0;
 }
 
 #if IS_ENABLED(CONFIG_IPV6)
@@ -594,17 +599,20 @@ static void get_fixed_ipv4_csum(__wsum hw_checksum, struct sk_buff *skb,
 static int get_fixed_ipv6_csum(__wsum hw_checksum, struct sk_buff *skb,
 			       struct ipv6hdr *ipv6h)
 {
+	__u8 nexthdr = ipv6h->nexthdr;
 	__wsum csum_pseudo_hdr = 0;
 
-	if (unlikely(ipv6h->nexthdr == IPPROTO_FRAGMENT ||
-		     ipv6h->nexthdr == IPPROTO_HOPOPTS))
+	if (unlikely(nexthdr == IPPROTO_FRAGMENT ||
+		     nexthdr == IPPROTO_HOPOPTS ||
+		     nexthdr == IPPROTO_SCTP))
 		return -1;
-	hw_checksum = csum_add(hw_checksum, (__force __wsum)htons(ipv6h->nexthdr));
+	hw_checksum = csum_add(hw_checksum, (__force __wsum)htons(nexthdr));
 
 	csum_pseudo_hdr = csum_partial(&ipv6h->saddr,
 				       sizeof(ipv6h->saddr) + sizeof(ipv6h->daddr), 0);
 	csum_pseudo_hdr = csum_add(csum_pseudo_hdr, (__force __wsum)ipv6h->payload_len);
-	csum_pseudo_hdr = csum_add(csum_pseudo_hdr, (__force __wsum)ntohs(ipv6h->nexthdr));
+	csum_pseudo_hdr = csum_add(csum_pseudo_hdr,
+				   (__force __wsum)htons(nexthdr));
 
 	skb->csum = csum_sub(hw_checksum, csum_pseudo_hdr);
 	skb->csum = csum_add(skb->csum, csum_partial(ipv6h, sizeof(struct ipv6hdr), 0));
@@ -627,11 +635,10 @@ static int check_csum(struct mlx4_cqe *cqe, struct sk_buff *skb, void *va,
 	}
 
 	if (cqe->status & cpu_to_be16(MLX4_CQE_STATUS_IPV4))
-		get_fixed_ipv4_csum(hw_checksum, skb, hdr);
+		return get_fixed_ipv4_csum(hw_checksum, skb, hdr);
 #if IS_ENABLED(CONFIG_IPV6)
-	else if (cqe->status & cpu_to_be16(MLX4_CQE_STATUS_IPV6))
-		if (unlikely(get_fixed_ipv6_csum(hw_checksum, skb, hdr)))
-			return -1;
+	if (cqe->status & cpu_to_be16(MLX4_CQE_STATUS_IPV6))
+		return get_fixed_ipv6_csum(hw_checksum, skb, hdr);
 #endif
 	return 0;
 }
@@ -1042,7 +1049,7 @@ static int mlx4_en_config_rss_qp(struct mlx4_en_priv *priv, int qpn,
 	if (!context)
 		return -ENOMEM;
 
-	err = mlx4_qp_alloc(mdev->dev, qpn, qp, GFP_KERNEL);
+	err = mlx4_qp_alloc(mdev->dev, qpn, qp);
 	if (err) {
 		en_err(priv, "Failed to allocate qp #%x\n", qpn);
 		goto out;
@@ -1086,7 +1093,7 @@ int mlx4_en_create_drop_qp(struct mlx4_en_priv *priv)
 		en_err(priv, "Failed reserving drop qpn\n");
 		return err;
 	}
-	err = mlx4_qp_alloc(priv->mdev->dev, qpn, &priv->drop_qp, GFP_KERNEL);
+	err = mlx4_qp_alloc(priv->mdev->dev, qpn, &priv->drop_qp);
 	if (err) {
 		en_err(priv, "Failed allocating drop qp\n");
 		mlx4_qp_release_range(priv->mdev->dev, qpn, 1);
@@ -1158,8 +1165,7 @@ int mlx4_en_config_rss_steer(struct mlx4_en_priv *priv)
 	}
 
 	/* Configure RSS indirection qp */
-	err = mlx4_qp_alloc(mdev->dev, priv->base_qpn, rss_map->indir_qp,
-			    GFP_KERNEL);
+	err = mlx4_qp_alloc(mdev->dev, priv->base_qpn, rss_map->indir_qp);
 	if (err) {
 		en_err(priv, "Failed to allocate RSS indirection QP\n");
 		goto rss_err;
diff --git a/drivers/net/ethernet/mellanox/mlx4/en_tx.c b/drivers/net/ethernet/mellanox/mlx4/en_tx.c
index 4f3a9b27ce4a..73faa3d77921 100644
--- a/drivers/net/ethernet/mellanox/mlx4/en_tx.c
+++ b/drivers/net/ethernet/mellanox/mlx4/en_tx.c
@@ -111,7 +111,7 @@ int mlx4_en_create_tx_ring(struct mlx4_en_priv *priv,
 		goto err_hwq_res;
 	}
 
-	err = mlx4_qp_alloc(mdev->dev, ring->qpn, &ring->sp_qp, GFP_KERNEL);
+	err = mlx4_qp_alloc(mdev->dev, ring->qpn, &ring->sp_qp);
 	if (err) {
 		en_err(priv, "Failed allocating qp %d\n", ring->qpn);
 		goto err_reserve;
diff --git a/drivers/net/ethernet/mellanox/mlx4/fw.c b/drivers/net/ethernet/mellanox/mlx4/fw.c
index 37e84a59e751..041c0ed65929 100644
--- a/drivers/net/ethernet/mellanox/mlx4/fw.c
+++ b/drivers/net/ethernet/mellanox/mlx4/fw.c
@@ -159,8 +159,9 @@ static void dump_dev_cap_flags2(struct mlx4_dev *dev, u64 flags)
 		[32] = "Loopback source checks support",
 		[33] = "RoCEv2 support",
 		[34] = "DMFS Sniffer support (UC & MC)",
-		[35] = "QinQ VST mode support",
-		[36] = "sl to vl mapping table change event support"
+		[35] = "Diag counters per port",
+		[36] = "QinQ VST mode support",
+		[37] = "sl to vl mapping table change event support",
 	};
 	int i;
 
@@ -764,6 +765,7 @@ int mlx4_QUERY_DEV_CAP(struct mlx4_dev *dev, struct mlx4_dev_cap *dev_cap)
 #define QUERY_DEV_CAP_CQ_TS_SUPPORT_OFFSET	0x3e
 #define QUERY_DEV_CAP_MAX_PKEY_OFFSET		0x3f
 #define QUERY_DEV_CAP_EXT_FLAGS_OFFSET		0x40
+#define QUERY_DEV_CAP_WOL_OFFSET		0x43
 #define QUERY_DEV_CAP_FLAGS_OFFSET		0x44
 #define QUERY_DEV_CAP_RSVD_UAR_OFFSET		0x48
 #define QUERY_DEV_CAP_UAR_SZ_OFFSET		0x49
@@ -920,6 +922,9 @@ int mlx4_QUERY_DEV_CAP(struct mlx4_dev *dev, struct mlx4_dev_cap *dev_cap)
 	MLX4_GET(ext_flags, outbox, QUERY_DEV_CAP_EXT_FLAGS_OFFSET);
 	MLX4_GET(flags, outbox, QUERY_DEV_CAP_FLAGS_OFFSET);
 	dev_cap->flags = flags | (u64)ext_flags << 32;
+	MLX4_GET(field, outbox, QUERY_DEV_CAP_WOL_OFFSET);
+	dev_cap->wol_port[1] = !!(field & 0x20);
+	dev_cap->wol_port[2] = !!(field & 0x40);
 	MLX4_GET(field, outbox, QUERY_DEV_CAP_RSVD_UAR_OFFSET);
 	dev_cap->reserved_uars = field >> 4;
 	MLX4_GET(field, outbox, QUERY_DEV_CAP_UAR_SZ_OFFSET);
diff --git a/drivers/net/ethernet/mellanox/mlx4/fw.h b/drivers/net/ethernet/mellanox/mlx4/fw.h
index 5343a0599253..b52ba01aa486 100644
--- a/drivers/net/ethernet/mellanox/mlx4/fw.h
+++ b/drivers/net/ethernet/mellanox/mlx4/fw.h
@@ -129,6 +129,7 @@ struct mlx4_dev_cap {
 	u32 dmfs_high_rate_qpn_range;
 	struct mlx4_rate_limit_caps rl_caps;
 	struct mlx4_port_cap port_cap[MLX4_MAX_PORTS + 1];
+	bool wol_port[MLX4_MAX_PORTS + 1];
 };
 
 struct mlx4_func_cap {
diff --git a/drivers/net/ethernet/mellanox/mlx4/icm.c b/drivers/net/ethernet/mellanox/mlx4/icm.c
index e1f9e7cebf8f..5a7816e7c7b4 100644
--- a/drivers/net/ethernet/mellanox/mlx4/icm.c
+++ b/drivers/net/ethernet/mellanox/mlx4/icm.c
@@ -251,8 +251,7 @@ int mlx4_UNMAP_ICM_AUX(struct mlx4_dev *dev)
 			MLX4_CMD_TIME_CLASS_B, MLX4_CMD_NATIVE);
 }
 
-int mlx4_table_get(struct mlx4_dev *dev, struct mlx4_icm_table *table, u32 obj,
-		   gfp_t gfp)
+int mlx4_table_get(struct mlx4_dev *dev, struct mlx4_icm_table *table, u32 obj)
 {
 	u32 i = (obj & (table->num_obj - 1)) /
 			(MLX4_TABLE_CHUNK_SIZE / table->obj_size);
@@ -266,7 +265,7 @@ int mlx4_table_get(struct mlx4_dev *dev, struct mlx4_icm_table *table, u32 obj,
 	}
 
 	table->icm[i] = mlx4_alloc_icm(dev, MLX4_TABLE_CHUNK_SIZE >> PAGE_SHIFT,
-				       (table->lowmem ? gfp : GFP_HIGHUSER) |
+				       (table->lowmem ? GFP_KERNEL : GFP_HIGHUSER) |
 				       __GFP_NOWARN, table->coherent);
 	if (!table->icm[i]) {
 		ret = -ENOMEM;
@@ -363,7 +362,7 @@ int mlx4_table_get_range(struct mlx4_dev *dev, struct mlx4_icm_table *table,
 	u32 i;
 
 	for (i = start; i <= end; i += inc) {
-		err = mlx4_table_get(dev, table, i, GFP_KERNEL);
+		err = mlx4_table_get(dev, table, i);
 		if (err)
 			goto fail;
 	}
diff --git a/drivers/net/ethernet/mellanox/mlx4/icm.h b/drivers/net/ethernet/mellanox/mlx4/icm.h
index 0c7364550150..dee67fa39107 100644
--- a/drivers/net/ethernet/mellanox/mlx4/icm.h
+++ b/drivers/net/ethernet/mellanox/mlx4/icm.h
@@ -71,8 +71,7 @@ struct mlx4_icm *mlx4_alloc_icm(struct mlx4_dev *dev, int npages,
 				gfp_t gfp_mask, int coherent);
 void mlx4_free_icm(struct mlx4_dev *dev, struct mlx4_icm *icm, int coherent);
 
-int mlx4_table_get(struct mlx4_dev *dev, struct mlx4_icm_table *table, u32 obj,
-		   gfp_t gfp);
+int mlx4_table_get(struct mlx4_dev *dev, struct mlx4_icm_table *table, u32 obj);
 void mlx4_table_put(struct mlx4_dev *dev, struct mlx4_icm_table *table, u32 obj);
 int mlx4_table_get_range(struct mlx4_dev *dev, struct mlx4_icm_table *table,
 			 u32 start, u32 end);
diff --git a/drivers/net/ethernet/mellanox/mlx4/main.c b/drivers/net/ethernet/mellanox/mlx4/main.c
index a27c9c13a36e..5fe5cdc51357 100644
--- a/drivers/net/ethernet/mellanox/mlx4/main.c
+++ b/drivers/net/ethernet/mellanox/mlx4/main.c
@@ -424,13 +424,15 @@ static int mlx4_dev_cap(struct mlx4_dev *dev, struct mlx4_dev_cap *dev_cap)
 	dev->caps.stat_rate_support  = dev_cap->stat_rate_support;
 	dev->caps.max_gso_sz	     = dev_cap->max_gso_sz;
 	dev->caps.max_rss_tbl_sz     = dev_cap->max_rss_tbl_sz;
+	dev->caps.wol_port[1]          = dev_cap->wol_port[1];
+	dev->caps.wol_port[2]          = dev_cap->wol_port[2];
 
 	/* Save uar page shift */
 	if (!mlx4_is_slave(dev)) {
 		/* Virtual PCI function needs to determine UAR page size from
 		 * firmware. Only master PCI function can set the uar page size
 		 */
-		if (enable_4k_uar)
+		if (enable_4k_uar || !dev->persist->num_vfs)
 			dev->uar_page_shift = DEFAULT_UAR_PAGE_SHIFT;
 		else
 			dev->uar_page_shift = PAGE_SHIFT;
@@ -2275,7 +2277,7 @@ static int mlx4_init_hca(struct mlx4_dev *dev)
 
 		dev->caps.max_fmr_maps = (1 << (32 - ilog2(dev->caps.num_mpts))) - 1;
 
-		if (enable_4k_uar) {
+		if (enable_4k_uar || !dev->persist->num_vfs) {
 			init_hca.log_uar_sz = ilog2(dev->caps.num_uars) +
 						    PAGE_SHIFT - DEFAULT_UAR_PAGE_SHIFT;
 			init_hca.uar_page_sz = DEFAULT_UAR_PAGE_SHIFT - 12;
diff --git a/drivers/net/ethernet/mellanox/mlx4/mlx4.h b/drivers/net/ethernet/mellanox/mlx4/mlx4.h
index 30616cd0140d..706d7f21ac5c 100644
--- a/drivers/net/ethernet/mellanox/mlx4/mlx4.h
+++ b/drivers/net/ethernet/mellanox/mlx4/mlx4.h
@@ -969,7 +969,7 @@ void mlx4_cleanup_cq_table(struct mlx4_dev *dev);
 void mlx4_cleanup_qp_table(struct mlx4_dev *dev);
 void mlx4_cleanup_srq_table(struct mlx4_dev *dev);
 void mlx4_cleanup_mcg_table(struct mlx4_dev *dev);
-int __mlx4_qp_alloc_icm(struct mlx4_dev *dev, int qpn, gfp_t gfp);
+int __mlx4_qp_alloc_icm(struct mlx4_dev *dev, int qpn);
 void __mlx4_qp_free_icm(struct mlx4_dev *dev, int qpn);
 int __mlx4_cq_alloc_icm(struct mlx4_dev *dev, int *cqn);
 void __mlx4_cq_free_icm(struct mlx4_dev *dev, int cqn);
@@ -977,7 +977,7 @@ int __mlx4_srq_alloc_icm(struct mlx4_dev *dev, int *srqn);
 void __mlx4_srq_free_icm(struct mlx4_dev *dev, int srqn);
 int __mlx4_mpt_reserve(struct mlx4_dev *dev);
 void __mlx4_mpt_release(struct mlx4_dev *dev, u32 index);
-int __mlx4_mpt_alloc_icm(struct mlx4_dev *dev, u32 index, gfp_t gfp);
+int __mlx4_mpt_alloc_icm(struct mlx4_dev *dev, u32 index);
 void __mlx4_mpt_free_icm(struct mlx4_dev *dev, u32 index);
 u32 __mlx4_alloc_mtt_range(struct mlx4_dev *dev, int order);
 void __mlx4_free_mtt_range(struct mlx4_dev *dev, u32 first_seg, int order);
diff --git a/drivers/net/ethernet/mellanox/mlx4/mr.c b/drivers/net/ethernet/mellanox/mlx4/mr.c
index ce852ca22a96..24282cd017d3 100644
--- a/drivers/net/ethernet/mellanox/mlx4/mr.c
+++ b/drivers/net/ethernet/mellanox/mlx4/mr.c
@@ -479,14 +479,14 @@ static void mlx4_mpt_release(struct mlx4_dev *dev, u32 index)
 	__mlx4_mpt_release(dev, index);
 }
 
-int __mlx4_mpt_alloc_icm(struct mlx4_dev *dev, u32 index, gfp_t gfp)
+int __mlx4_mpt_alloc_icm(struct mlx4_dev *dev, u32 index)
 {
 	struct mlx4_mr_table *mr_table = &mlx4_priv(dev)->mr_table;
 
-	return mlx4_table_get(dev, &mr_table->dmpt_table, index, gfp);
+	return mlx4_table_get(dev, &mr_table->dmpt_table, index);
 }
 
-static int mlx4_mpt_alloc_icm(struct mlx4_dev *dev, u32 index, gfp_t gfp)
+static int mlx4_mpt_alloc_icm(struct mlx4_dev *dev, u32 index)
 {
 	u64 param = 0;
 
@@ -497,7 +497,7 @@ static int mlx4_mpt_alloc_icm(struct mlx4_dev *dev, u32 index, gfp_t gfp)
 							MLX4_CMD_TIME_CLASS_A,
 							MLX4_CMD_WRAPPED);
 	}
-	return __mlx4_mpt_alloc_icm(dev, index, gfp);
+	return __mlx4_mpt_alloc_icm(dev, index);
 }
 
 void __mlx4_mpt_free_icm(struct mlx4_dev *dev, u32 index)
@@ -629,7 +629,7 @@ int mlx4_mr_enable(struct mlx4_dev *dev, struct mlx4_mr *mr)
 	struct mlx4_mpt_entry *mpt_entry;
 	int err;
 
-	err = mlx4_mpt_alloc_icm(dev, key_to_hw_index(mr->key), GFP_KERNEL);
+	err = mlx4_mpt_alloc_icm(dev, key_to_hw_index(mr->key));
 	if (err)
 		return err;
 
@@ -787,14 +787,13 @@ int mlx4_write_mtt(struct mlx4_dev *dev, struct mlx4_mtt *mtt,
 EXPORT_SYMBOL_GPL(mlx4_write_mtt);
 
 int mlx4_buf_write_mtt(struct mlx4_dev *dev, struct mlx4_mtt *mtt,
-		       struct mlx4_buf *buf, gfp_t gfp)
+		       struct mlx4_buf *buf)
 {
 	u64 *page_list;
 	int err;
 	int i;
 
-	page_list = kmalloc(buf->npages * sizeof *page_list,
-			    gfp);
+	page_list = kcalloc(buf->npages, sizeof(*page_list), GFP_KERNEL);
 	if (!page_list)
 		return -ENOMEM;
 
@@ -841,7 +840,7 @@ int mlx4_mw_enable(struct mlx4_dev *dev, struct mlx4_mw *mw)
 	struct mlx4_mpt_entry *mpt_entry;
 	int err;
 
-	err = mlx4_mpt_alloc_icm(dev, key_to_hw_index(mw->key), GFP_KERNEL);
+	err = mlx4_mpt_alloc_icm(dev, key_to_hw_index(mw->key));
 	if (err)
 		return err;
 
diff --git a/drivers/net/ethernet/mellanox/mlx4/qp.c b/drivers/net/ethernet/mellanox/mlx4/qp.c
index 5a310d313e94..26747212526b 100644
--- a/drivers/net/ethernet/mellanox/mlx4/qp.c
+++ b/drivers/net/ethernet/mellanox/mlx4/qp.c
@@ -301,29 +301,29 @@ void mlx4_qp_release_range(struct mlx4_dev *dev, int base_qpn, int cnt)
 }
 EXPORT_SYMBOL_GPL(mlx4_qp_release_range);
 
-int __mlx4_qp_alloc_icm(struct mlx4_dev *dev, int qpn, gfp_t gfp)
+int __mlx4_qp_alloc_icm(struct mlx4_dev *dev, int qpn)
 {
 	struct mlx4_priv *priv = mlx4_priv(dev);
 	struct mlx4_qp_table *qp_table = &priv->qp_table;
 	int err;
 
-	err = mlx4_table_get(dev, &qp_table->qp_table, qpn, gfp);
+	err = mlx4_table_get(dev, &qp_table->qp_table, qpn);
 	if (err)
 		goto err_out;
 
-	err = mlx4_table_get(dev, &qp_table->auxc_table, qpn, gfp);
+	err = mlx4_table_get(dev, &qp_table->auxc_table, qpn);
 	if (err)
 		goto err_put_qp;
 
-	err = mlx4_table_get(dev, &qp_table->altc_table, qpn, gfp);
+	err = mlx4_table_get(dev, &qp_table->altc_table, qpn);
 	if (err)
 		goto err_put_auxc;
 
-	err = mlx4_table_get(dev, &qp_table->rdmarc_table, qpn, gfp);
+	err = mlx4_table_get(dev, &qp_table->rdmarc_table, qpn);
 	if (err)
 		goto err_put_altc;
 
-	err = mlx4_table_get(dev, &qp_table->cmpt_table, qpn, gfp);
+	err = mlx4_table_get(dev, &qp_table->cmpt_table, qpn);
 	if (err)
 		goto err_put_rdmarc;
 
@@ -345,7 +345,7 @@ err_out:
 	return err;
 }
 
-static int mlx4_qp_alloc_icm(struct mlx4_dev *dev, int qpn, gfp_t gfp)
+static int mlx4_qp_alloc_icm(struct mlx4_dev *dev, int qpn)
 {
 	u64 param = 0;
 
@@ -355,7 +355,7 @@ static int mlx4_qp_alloc_icm(struct mlx4_dev *dev, int qpn, gfp_t gfp)
 				    MLX4_CMD_ALLOC_RES, MLX4_CMD_TIME_CLASS_A,
 				    MLX4_CMD_WRAPPED);
 	}
-	return __mlx4_qp_alloc_icm(dev, qpn, gfp);
+	return __mlx4_qp_alloc_icm(dev, qpn);
 }
 
 void __mlx4_qp_free_icm(struct mlx4_dev *dev, int qpn)
@@ -397,7 +397,7 @@ struct mlx4_qp *mlx4_qp_lookup(struct mlx4_dev *dev, u32 qpn)
 	return qp;
 }
 
-int mlx4_qp_alloc(struct mlx4_dev *dev, int qpn, struct mlx4_qp *qp, gfp_t gfp)
+int mlx4_qp_alloc(struct mlx4_dev *dev, int qpn, struct mlx4_qp *qp)
 {
 	struct mlx4_priv *priv = mlx4_priv(dev);
 	struct mlx4_qp_table *qp_table = &priv->qp_table;
@@ -408,7 +408,7 @@ int mlx4_qp_alloc(struct mlx4_dev *dev, int qpn, struct mlx4_qp *qp, gfp_t gfp)
 
 	qp->qpn = qpn;
 
-	err = mlx4_qp_alloc_icm(dev, qpn, gfp);
+	err = mlx4_qp_alloc_icm(dev, qpn);
 	if (err)
 		return err;
 
diff --git a/drivers/net/ethernet/mellanox/mlx4/resource_tracker.c b/drivers/net/ethernet/mellanox/mlx4/resource_tracker.c
index 812783865205..215e21c3dc8a 100644
--- a/drivers/net/ethernet/mellanox/mlx4/resource_tracker.c
+++ b/drivers/net/ethernet/mellanox/mlx4/resource_tracker.c
@@ -1822,7 +1822,7 @@ static int qp_alloc_res(struct mlx4_dev *dev, int slave, int op, int cmd,
 			return err;
 
 		if (!fw_reserved(dev, qpn)) {
-			err = __mlx4_qp_alloc_icm(dev, qpn, GFP_KERNEL);
+			err = __mlx4_qp_alloc_icm(dev, qpn);
 			if (err) {
 				res_abort_move(dev, slave, RES_QP, qpn);
 				return err;
@@ -1909,7 +1909,7 @@ static int mpt_alloc_res(struct mlx4_dev *dev, int slave, int op, int cmd,
 		if (err)
 			return err;
 
-		err = __mlx4_mpt_alloc_icm(dev, mpt->key, GFP_KERNEL);
+		err = __mlx4_mpt_alloc_icm(dev, mpt->key);
 		if (err) {
 			res_abort_move(dev, slave, RES_MPT, id);
 			return err;
diff --git a/drivers/net/ethernet/mellanox/mlx4/srq.c b/drivers/net/ethernet/mellanox/mlx4/srq.c
index f44d089e2ca6..bedf52126824 100644
--- a/drivers/net/ethernet/mellanox/mlx4/srq.c
+++ b/drivers/net/ethernet/mellanox/mlx4/srq.c
@@ -100,11 +100,11 @@ int __mlx4_srq_alloc_icm(struct mlx4_dev *dev, int *srqn)
 	if (*srqn == -1)
 		return -ENOMEM;
 
-	err = mlx4_table_get(dev, &srq_table->table, *srqn, GFP_KERNEL);
+	err = mlx4_table_get(dev, &srq_table->table, *srqn);
 	if (err)
 		goto err_out;
 
-	err = mlx4_table_get(dev, &srq_table->cmpt_table, *srqn, GFP_KERNEL);
+	err = mlx4_table_get(dev, &srq_table->cmpt_table, *srqn);
 	if (err)
 		goto err_put;
 	return 0;
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/Makefile b/drivers/net/ethernet/mellanox/mlx5/core/Makefile
index ca367445f864..9d17e4e76d3a 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/Makefile
+++ b/drivers/net/ethernet/mellanox/mlx5/core/Makefile
@@ -4,14 +4,14 @@ subdir-ccflags-y += -I$(src)
 mlx5_core-y :=	main.o cmd.o debugfs.o fw.o eq.o uar.o pagealloc.o \
 		health.o mcg.o cq.o srq.o alloc.o qp.o port.o mr.o pd.o \
 		mad.o transobj.o vport.o sriov.o fs_cmd.o fs_core.o \
-		fs_counters.o rl.o lag.o dev.o lib/gid.o
+		fs_counters.o rl.o lag.o dev.o wq.o lib/gid.o
 
 mlx5_core-$(CONFIG_MLX5_ACCEL) += accel/ipsec.o
 
 mlx5_core-$(CONFIG_MLX5_FPGA) += fpga/cmd.o fpga/core.o fpga/conn.o fpga/sdk.o \
 		fpga/ipsec.o
 
-mlx5_core-$(CONFIG_MLX5_CORE_EN) += wq.o eswitch.o eswitch_offloads.o \
+mlx5_core-$(CONFIG_MLX5_CORE_EN) += eswitch.o eswitch_offloads.o \
 		en_main.o en_common.o en_fs.o en_ethtool.o en_tx.o \
 		en_rx.o en_rx_am.o en_txrx.o en_clock.o vxlan.o \
 		en_tc.o en_arfs.o en_rep.o en_fs_ethtool.o en_selftest.o
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/accel/Makefile b/drivers/net/ethernet/mellanox/mlx5/core/accel/Makefile
new file mode 100644
index 000000000000..d8e17110f25d
--- /dev/null
+++ b/drivers/net/ethernet/mellanox/mlx5/core/accel/Makefile
@@ -0,0 +1 @@
+subdir-ccflags-y += -I$(src)/..
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/cmd.c b/drivers/net/ethernet/mellanox/mlx5/core/cmd.c
index f5a2c605749f..31cbe5e86a01 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/cmd.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/cmd.c
@@ -786,6 +786,10 @@ static void cb_timeout_handler(struct work_struct *work)
 	mlx5_cmd_comp_handler(dev, 1UL << ent->idx, true);
 }
 
+static void free_msg(struct mlx5_core_dev *dev, struct mlx5_cmd_msg *msg);
+static void mlx5_free_cmd_msg(struct mlx5_core_dev *dev,
+			      struct mlx5_cmd_msg *msg);
+
 static void cmd_work_handler(struct work_struct *work)
 {
 	struct mlx5_cmd_work_ent *ent = container_of(work, struct mlx5_cmd_work_ent, work);
@@ -796,17 +800,28 @@ static void cmd_work_handler(struct work_struct *work)
 	struct semaphore *sem;
 	unsigned long flags;
 	bool poll_cmd = ent->polling;
+	int alloc_ret;
 
 
 	sem = ent->page_queue ? &cmd->pages_sem : &cmd->sem;
 	down(sem);
 	if (!ent->page_queue) {
-		ent->idx = alloc_ent(cmd);
-		if (ent->idx < 0) {
+		alloc_ret = alloc_ent(cmd);
+		if (alloc_ret < 0) {
 			mlx5_core_err(dev, "failed to allocate command entry\n");
+			if (ent->callback) {
+				ent->callback(-EAGAIN, ent->context);
+				mlx5_free_cmd_msg(dev, ent->out);
+				free_msg(dev, ent->in);
+				free_cmd(ent);
+			} else {
+				ent->ret = -EAGAIN;
+				complete(&ent->done);
+			}
 			up(sem);
 			return;
 		}
+		ent->idx = alloc_ret;
 	} else {
 		ent->idx = cmd->max_reg_cmds;
 		spin_lock_irqsave(&cmd->alloc_lock, flags);
@@ -967,7 +982,7 @@ static int mlx5_cmd_invoke(struct mlx5_core_dev *dev, struct mlx5_cmd_msg *in,
 
 	err = wait_func(dev, ent);
 	if (err == -ETIMEDOUT)
-		goto out_free;
+		goto out;
 
 	ds = ent->ts2 - ent->ts1;
 	op = MLX5_GET(mbox_in, in->first.data, opcode);
@@ -1430,6 +1445,7 @@ void mlx5_cmd_comp_handler(struct mlx5_core_dev *dev, u64 vec, bool forced)
 					mlx5_core_err(dev, "Command completion arrived after timeout (entry idx = %d).\n",
 						      ent->idx);
 					free_ent(cmd, ent->idx);
+					free_cmd(ent);
 				}
 				continue;
 			}
@@ -1488,7 +1504,8 @@ void mlx5_cmd_comp_handler(struct mlx5_core_dev *dev, u64 vec, bool forced)
 				free_msg(dev, ent->in);
 
 				err = err ? err : ent->status;
-				free_cmd(ent);
+				if (!forced)
+					free_cmd(ent);
 				callback(err, context);
 			} else {
 				complete(&ent->done);
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en.h b/drivers/net/ethernet/mellanox/mlx5/core/en.h
index e1b7ddfecd01..0039b4725405 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/en.h
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en.h
@@ -266,6 +266,14 @@ struct mlx5e_dcbx {
 };
 #endif
 
+#define MAX_PIN_NUM	8
+struct mlx5e_pps {
+	u8                         pin_caps[MAX_PIN_NUM];
+	struct work_struct         out_work;
+	u64                        start[MAX_PIN_NUM];
+	u8                         enabled;
+};
+
 struct mlx5e_tstamp {
 	rwlock_t                   lock;
 	struct cyclecounter        cycles;
@@ -277,7 +285,7 @@ struct mlx5e_tstamp {
 	struct mlx5_core_dev      *mdev;
 	struct ptp_clock          *ptp;
 	struct ptp_clock_info      ptp_info;
-	u8                        *pps_pin_caps;
+	struct mlx5e_pps           pps_info;
 };
 
 enum {
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en_accel/Makefile b/drivers/net/ethernet/mellanox/mlx5/core/en_accel/Makefile
new file mode 100644
index 000000000000..d8e17110f25d
--- /dev/null
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en_accel/Makefile
@@ -0,0 +1 @@
+subdir-ccflags-y += -I$(src)/..
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en_accel/ipsec_rxtx.c b/drivers/net/ethernet/mellanox/mlx5/core/en_accel/ipsec_rxtx.c
index 4a78aefdf157..4614ddfa91eb 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/en_accel/ipsec_rxtx.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en_accel/ipsec_rxtx.c
@@ -372,7 +372,7 @@ void mlx5e_ipsec_build_inverse_table(void)
 	 */
 	mlx5e_ipsec_inverse_table[1] = htons(0xFFFF);
 	for (mss = 2; mss < MAX_LSO_MSS; mss++) {
-		mss_inv = ((1ULL << 32) / mss) >> 16;
+		mss_inv = div_u64(1ULL << 32, mss) >> 16;
 		mlx5e_ipsec_inverse_table[mss] = htons(mss_inv);
 	}
 }
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en_clock.c b/drivers/net/ethernet/mellanox/mlx5/core/en_clock.c
index 66f432385dbb..84dd63e74041 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/en_clock.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en_clock.c
@@ -53,6 +53,15 @@ enum {
 	MLX5E_EVENT_MODE_ONCE_TILL_ARM	= 0x2,
 };
 
+enum {
+	MLX5E_MTPPS_FS_ENABLE			= BIT(0x0),
+	MLX5E_MTPPS_FS_PATTERN			= BIT(0x2),
+	MLX5E_MTPPS_FS_PIN_MODE			= BIT(0x3),
+	MLX5E_MTPPS_FS_TIME_STAMP		= BIT(0x4),
+	MLX5E_MTPPS_FS_OUT_PULSE_DURATION	= BIT(0x5),
+	MLX5E_MTPPS_FS_ENH_OUT_PER_ADJ		= BIT(0x7),
+};
+
 void mlx5e_fill_hwstamp(struct mlx5e_tstamp *tstamp, u64 timestamp,
 			struct skb_shared_hwtstamps *hwts)
 {
@@ -73,17 +82,46 @@ static u64 mlx5e_read_internal_timer(const struct cyclecounter *cc)
 	return mlx5_read_internal_timer(tstamp->mdev) & cc->mask;
 }
 
+static void mlx5e_pps_out(struct work_struct *work)
+{
+	struct mlx5e_pps *pps_info = container_of(work, struct mlx5e_pps,
+						  out_work);
+	struct mlx5e_tstamp *tstamp = container_of(pps_info, struct mlx5e_tstamp,
+						   pps_info);
+	u32 in[MLX5_ST_SZ_DW(mtpps_reg)] = {0};
+	unsigned long flags;
+	int i;
+
+	for (i = 0; i < tstamp->ptp_info.n_pins; i++) {
+		u64 tstart;
+
+		write_lock_irqsave(&tstamp->lock, flags);
+		tstart = tstamp->pps_info.start[i];
+		tstamp->pps_info.start[i] = 0;
+		write_unlock_irqrestore(&tstamp->lock, flags);
+		if (!tstart)
+			continue;
+
+		MLX5_SET(mtpps_reg, in, pin, i);
+		MLX5_SET64(mtpps_reg, in, time_stamp, tstart);
+		MLX5_SET(mtpps_reg, in, field_select, MLX5E_MTPPS_FS_TIME_STAMP);
+		mlx5_set_mtpps(tstamp->mdev, in, sizeof(in));
+	}
+}
+
 static void mlx5e_timestamp_overflow(struct work_struct *work)
 {
 	struct delayed_work *dwork = to_delayed_work(work);
 	struct mlx5e_tstamp *tstamp = container_of(dwork, struct mlx5e_tstamp,
 						   overflow_work);
+	struct mlx5e_priv *priv = container_of(tstamp, struct mlx5e_priv, tstamp);
 	unsigned long flags;
 
 	write_lock_irqsave(&tstamp->lock, flags);
 	timecounter_read(&tstamp->clock);
 	write_unlock_irqrestore(&tstamp->lock, flags);
-	schedule_delayed_work(&tstamp->overflow_work, tstamp->overflow_period);
+	queue_delayed_work(priv->wq, &tstamp->overflow_work,
+			   msecs_to_jiffies(tstamp->overflow_period * 1000));
 }
 
 int mlx5e_hwstamp_set(struct mlx5e_priv *priv, struct ifreq *ifr)
@@ -213,18 +251,6 @@ static int mlx5e_ptp_adjfreq(struct ptp_clock_info *ptp, s32 delta)
 	int neg_adj = 0;
 	struct mlx5e_tstamp *tstamp = container_of(ptp, struct mlx5e_tstamp,
 						  ptp_info);
-	struct mlx5e_priv *priv =
-		container_of(tstamp, struct mlx5e_priv, tstamp);
-
-	if (MLX5_CAP_GEN(priv->mdev, pps_modify)) {
-		u32 in[MLX5_ST_SZ_DW(mtpps_reg)] = {0};
-
-		/* For future use need to add a loop for finding all 1PPS out pins */
-		MLX5_SET(mtpps_reg, in, pin_mode, MLX5E_PIN_MODE_OUT);
-		MLX5_SET(mtpps_reg, in, out_periodic_adjustment, delta & 0xFFFF);
-
-		mlx5_set_mtpps(priv->mdev, in, sizeof(in));
-	}
 
 	if (delta < 0) {
 		neg_adj = 1;
@@ -253,12 +279,13 @@ static int mlx5e_extts_configure(struct ptp_clock_info *ptp,
 	struct mlx5e_priv *priv =
 		container_of(tstamp, struct mlx5e_priv, tstamp);
 	u32 in[MLX5_ST_SZ_DW(mtpps_reg)] = {0};
+	u32 field_select = 0;
+	u8 pin_mode = 0;
 	u8 pattern = 0;
 	int pin = -1;
 	int err = 0;
 
-	if (!MLX5_CAP_GEN(priv->mdev, pps) ||
-	    !MLX5_CAP_GEN(priv->mdev, pps_modify))
+	if (!MLX5_PPS_CAP(priv->mdev))
 		return -EOPNOTSUPP;
 
 	if (rq->extts.index >= tstamp->ptp_info.n_pins)
@@ -268,15 +295,21 @@ static int mlx5e_extts_configure(struct ptp_clock_info *ptp,
 		pin = ptp_find_pin(tstamp->ptp, PTP_PF_EXTTS, rq->extts.index);
 		if (pin < 0)
 			return -EBUSY;
+		pin_mode = MLX5E_PIN_MODE_IN;
+		pattern = !!(rq->extts.flags & PTP_FALLING_EDGE);
+		field_select = MLX5E_MTPPS_FS_PIN_MODE |
+			       MLX5E_MTPPS_FS_PATTERN |
+			       MLX5E_MTPPS_FS_ENABLE;
+	} else {
+		pin = rq->extts.index;
+		field_select = MLX5E_MTPPS_FS_ENABLE;
 	}
 
-	if (rq->extts.flags & PTP_FALLING_EDGE)
-		pattern = 1;
-
 	MLX5_SET(mtpps_reg, in, pin, pin);
-	MLX5_SET(mtpps_reg, in, pin_mode, MLX5E_PIN_MODE_IN);
+	MLX5_SET(mtpps_reg, in, pin_mode, pin_mode);
 	MLX5_SET(mtpps_reg, in, pattern, pattern);
 	MLX5_SET(mtpps_reg, in, enable, on);
+	MLX5_SET(mtpps_reg, in, field_select, field_select);
 
 	err = mlx5_set_mtpps(priv->mdev, in, sizeof(in));
 	if (err)
@@ -295,14 +328,18 @@ static int mlx5e_perout_configure(struct ptp_clock_info *ptp,
 	struct mlx5e_priv *priv =
 		container_of(tstamp, struct mlx5e_priv, tstamp);
 	u32 in[MLX5_ST_SZ_DW(mtpps_reg)] = {0};
-	u64 nsec_now, nsec_delta, time_stamp;
+	u64 nsec_now, nsec_delta, time_stamp = 0;
 	u64 cycles_now, cycles_delta;
 	struct timespec64 ts;
 	unsigned long flags;
+	u32 field_select = 0;
+	u8 pin_mode = 0;
+	u8 pattern = 0;
 	int pin = -1;
+	int err = 0;
 	s64 ns;
 
-	if (!MLX5_CAP_GEN(priv->mdev, pps_modify))
+	if (!MLX5_PPS_CAP(priv->mdev))
 		return -EOPNOTSUPP;
 
 	if (rq->perout.index >= tstamp->ptp_info.n_pins)
@@ -313,32 +350,60 @@ static int mlx5e_perout_configure(struct ptp_clock_info *ptp,
 				   rq->perout.index);
 		if (pin < 0)
 			return -EBUSY;
-	}
 
-	ts.tv_sec = rq->perout.period.sec;
-	ts.tv_nsec = rq->perout.period.nsec;
-	ns = timespec64_to_ns(&ts);
-	if (on)
+		pin_mode = MLX5E_PIN_MODE_OUT;
+		pattern = MLX5E_OUT_PATTERN_PERIODIC;
+		ts.tv_sec = rq->perout.period.sec;
+		ts.tv_nsec = rq->perout.period.nsec;
+		ns = timespec64_to_ns(&ts);
+
 		if ((ns >> 1) != 500000000LL)
 			return -EINVAL;
-	ts.tv_sec = rq->perout.start.sec;
-	ts.tv_nsec = rq->perout.start.nsec;
-	ns = timespec64_to_ns(&ts);
-	cycles_now = mlx5_read_internal_timer(tstamp->mdev);
-	write_lock_irqsave(&tstamp->lock, flags);
-	nsec_now = timecounter_cyc2time(&tstamp->clock, cycles_now);
-	nsec_delta = ns - nsec_now;
-	cycles_delta = div64_u64(nsec_delta << tstamp->cycles.shift,
-				 tstamp->cycles.mult);
-	write_unlock_irqrestore(&tstamp->lock, flags);
-	time_stamp = cycles_now + cycles_delta;
+
+		ts.tv_sec = rq->perout.start.sec;
+		ts.tv_nsec = rq->perout.start.nsec;
+		ns = timespec64_to_ns(&ts);
+		cycles_now = mlx5_read_internal_timer(tstamp->mdev);
+		write_lock_irqsave(&tstamp->lock, flags);
+		nsec_now = timecounter_cyc2time(&tstamp->clock, cycles_now);
+		nsec_delta = ns - nsec_now;
+		cycles_delta = div64_u64(nsec_delta << tstamp->cycles.shift,
+					 tstamp->cycles.mult);
+		write_unlock_irqrestore(&tstamp->lock, flags);
+		time_stamp = cycles_now + cycles_delta;
+		field_select = MLX5E_MTPPS_FS_PIN_MODE |
+			       MLX5E_MTPPS_FS_PATTERN |
+			       MLX5E_MTPPS_FS_ENABLE |
+			       MLX5E_MTPPS_FS_TIME_STAMP;
+	} else {
+		pin = rq->perout.index;
+		field_select = MLX5E_MTPPS_FS_ENABLE;
+	}
+
 	MLX5_SET(mtpps_reg, in, pin, pin);
-	MLX5_SET(mtpps_reg, in, pin_mode, MLX5E_PIN_MODE_OUT);
-	MLX5_SET(mtpps_reg, in, pattern, MLX5E_OUT_PATTERN_PERIODIC);
+	MLX5_SET(mtpps_reg, in, pin_mode, pin_mode);
+	MLX5_SET(mtpps_reg, in, pattern, pattern);
 	MLX5_SET(mtpps_reg, in, enable, on);
 	MLX5_SET64(mtpps_reg, in, time_stamp, time_stamp);
+	MLX5_SET(mtpps_reg, in, field_select, field_select);
+
+	err = mlx5_set_mtpps(priv->mdev, in, sizeof(in));
+	if (err)
+		return err;
 
-	return mlx5_set_mtpps(priv->mdev, in, sizeof(in));
+	return mlx5_set_mtppse(priv->mdev, pin, 0,
+			       MLX5E_EVENT_MODE_REPETETIVE & on);
+}
+
+static int mlx5e_pps_configure(struct ptp_clock_info *ptp,
+			       struct ptp_clock_request *rq,
+			       int on)
+{
+	struct mlx5e_tstamp *tstamp =
+		container_of(ptp, struct mlx5e_tstamp, ptp_info);
+
+	tstamp->pps_info.enabled = !!on;
+	return 0;
 }
 
 static int mlx5e_ptp_enable(struct ptp_clock_info *ptp,
@@ -350,6 +415,8 @@ static int mlx5e_ptp_enable(struct ptp_clock_info *ptp,
 		return mlx5e_extts_configure(ptp, rq, on);
 	case PTP_CLK_REQ_PEROUT:
 		return mlx5e_perout_configure(ptp, rq, on);
+	case PTP_CLK_REQ_PPS:
+		return mlx5e_pps_configure(ptp, rq, on);
 	default:
 		return -EOPNOTSUPP;
 	}
@@ -395,6 +462,7 @@ static int mlx5e_init_pin_config(struct mlx5e_tstamp *tstamp)
 		return -ENOMEM;
 	tstamp->ptp_info.enable = mlx5e_ptp_enable;
 	tstamp->ptp_info.verify = mlx5e_ptp_verify;
+	tstamp->ptp_info.pps = 1;
 
 	for (i = 0; i < tstamp->ptp_info.n_pins; i++) {
 		snprintf(tstamp->ptp_info.pin_config[i].name,
@@ -422,22 +490,56 @@ static void mlx5e_get_pps_caps(struct mlx5e_priv *priv,
 	tstamp->ptp_info.n_per_out = MLX5_GET(mtpps_reg, out,
 					      cap_max_num_of_pps_out_pins);
 
-	tstamp->pps_pin_caps[0] = MLX5_GET(mtpps_reg, out, cap_pin_0_mode);
-	tstamp->pps_pin_caps[1] = MLX5_GET(mtpps_reg, out, cap_pin_1_mode);
-	tstamp->pps_pin_caps[2] = MLX5_GET(mtpps_reg, out, cap_pin_2_mode);
-	tstamp->pps_pin_caps[3] = MLX5_GET(mtpps_reg, out, cap_pin_3_mode);
-	tstamp->pps_pin_caps[4] = MLX5_GET(mtpps_reg, out, cap_pin_4_mode);
-	tstamp->pps_pin_caps[5] = MLX5_GET(mtpps_reg, out, cap_pin_5_mode);
-	tstamp->pps_pin_caps[6] = MLX5_GET(mtpps_reg, out, cap_pin_6_mode);
-	tstamp->pps_pin_caps[7] = MLX5_GET(mtpps_reg, out, cap_pin_7_mode);
+	tstamp->pps_info.pin_caps[0] = MLX5_GET(mtpps_reg, out, cap_pin_0_mode);
+	tstamp->pps_info.pin_caps[1] = MLX5_GET(mtpps_reg, out, cap_pin_1_mode);
+	tstamp->pps_info.pin_caps[2] = MLX5_GET(mtpps_reg, out, cap_pin_2_mode);
+	tstamp->pps_info.pin_caps[3] = MLX5_GET(mtpps_reg, out, cap_pin_3_mode);
+	tstamp->pps_info.pin_caps[4] = MLX5_GET(mtpps_reg, out, cap_pin_4_mode);
+	tstamp->pps_info.pin_caps[5] = MLX5_GET(mtpps_reg, out, cap_pin_5_mode);
+	tstamp->pps_info.pin_caps[6] = MLX5_GET(mtpps_reg, out, cap_pin_6_mode);
+	tstamp->pps_info.pin_caps[7] = MLX5_GET(mtpps_reg, out, cap_pin_7_mode);
 }
 
 void mlx5e_pps_event_handler(struct mlx5e_priv *priv,
 			     struct ptp_clock_event *event)
 {
+	struct net_device *netdev = priv->netdev;
 	struct mlx5e_tstamp *tstamp = &priv->tstamp;
+	struct timespec64 ts;
+	u64 nsec_now, nsec_delta;
+	u64 cycles_now, cycles_delta;
+	int pin = event->index;
+	s64 ns;
+	unsigned long flags;
 
-	ptp_clock_event(tstamp->ptp, event);
+	switch (tstamp->ptp_info.pin_config[pin].func) {
+	case PTP_PF_EXTTS:
+		if (tstamp->pps_info.enabled) {
+			event->type = PTP_CLOCK_PPSUSR;
+			event->pps_times.ts_real = ns_to_timespec64(event->timestamp);
+		} else {
+			event->type = PTP_CLOCK_EXTTS;
+		}
+		ptp_clock_event(tstamp->ptp, event);
+		break;
+	case PTP_PF_PEROUT:
+		mlx5e_ptp_gettime(&tstamp->ptp_info, &ts);
+		cycles_now = mlx5_read_internal_timer(tstamp->mdev);
+		ts.tv_sec += 1;
+		ts.tv_nsec = 0;
+		ns = timespec64_to_ns(&ts);
+		write_lock_irqsave(&tstamp->lock, flags);
+		nsec_now = timecounter_cyc2time(&tstamp->clock, cycles_now);
+		nsec_delta = ns - nsec_now;
+		cycles_delta = div64_u64(nsec_delta << tstamp->cycles.shift,
+					 tstamp->cycles.mult);
+		tstamp->pps_info.start[pin] = cycles_now + cycles_delta;
+		queue_work(priv->wq, &tstamp->pps_info.out_work);
+		write_unlock_irqrestore(&tstamp->lock, flags);
+		break;
+	default:
+		netdev_err(netdev, "%s: Unhandled event\n", __func__);
+	}
 }
 
 void mlx5e_timestamp_init(struct mlx5e_priv *priv)
@@ -473,9 +575,10 @@ void mlx5e_timestamp_init(struct mlx5e_priv *priv)
 	do_div(ns, NSEC_PER_SEC / 2 / HZ);
 	tstamp->overflow_period = ns;
 
+	INIT_WORK(&tstamp->pps_info.out_work, mlx5e_pps_out);
 	INIT_DELAYED_WORK(&tstamp->overflow_work, mlx5e_timestamp_overflow);
 	if (tstamp->overflow_period)
-		schedule_delayed_work(&tstamp->overflow_work, 0);
+		queue_delayed_work(priv->wq, &tstamp->overflow_work, 0);
 	else
 		mlx5_core_warn(priv->mdev, "invalid overflow period, overflow_work is not scheduled\n");
 
@@ -484,16 +587,10 @@ void mlx5e_timestamp_init(struct mlx5e_priv *priv)
 	snprintf(tstamp->ptp_info.name, 16, "mlx5 ptp");
 
 	/* Initialize 1PPS data structures */
-#define MAX_PIN_NUM	8
-	tstamp->pps_pin_caps = kzalloc(sizeof(u8) * MAX_PIN_NUM, GFP_KERNEL);
-	if (tstamp->pps_pin_caps) {
-		if (MLX5_CAP_GEN(priv->mdev, pps))
-			mlx5e_get_pps_caps(priv, tstamp);
-		if (tstamp->ptp_info.n_pins)
-			mlx5e_init_pin_config(tstamp);
-	} else {
-		mlx5_core_warn(priv->mdev, "1PPS initialization failed\n");
-	}
+	if (MLX5_PPS_CAP(priv->mdev))
+		mlx5e_get_pps_caps(priv, tstamp);
+	if (tstamp->ptp_info.n_pins)
+		mlx5e_init_pin_config(tstamp);
 
 	tstamp->ptp = ptp_clock_register(&tstamp->ptp_info,
 					 &priv->mdev->pdev->dev);
@@ -516,8 +613,7 @@ void mlx5e_timestamp_cleanup(struct mlx5e_priv *priv)
 		priv->tstamp.ptp = NULL;
 	}
 
-	kfree(tstamp->pps_pin_caps);
-	kfree(tstamp->ptp_info.pin_config);
-
+	cancel_work_sync(&tstamp->pps_info.out_work);
 	cancel_delayed_work_sync(&tstamp->overflow_work);
+	kfree(tstamp->ptp_info.pin_config);
 }
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en_dcbnl.c b/drivers/net/ethernet/mellanox/mlx5/core/en_dcbnl.c
index 8fa23f6a1f67..2eb54d36e16e 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/en_dcbnl.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en_dcbnl.c
@@ -464,6 +464,8 @@ static void mlx5e_dcbnl_getpermhwaddr(struct net_device *netdev,
 	if (!perm_addr)
 		return;
 
+	memset(perm_addr, 0xff, MAX_ADDR_LEN);
+
 	mlx5_query_nic_vport_mac_address(priv->mdev, 0, perm_addr);
 }
 
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en_fs_ethtool.c b/drivers/net/ethernet/mellanox/mlx5/core/en_fs_ethtool.c
index bdd82c9b3992..eafc59280ada 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/en_fs_ethtool.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en_fs_ethtool.c
@@ -276,7 +276,7 @@ static void add_rule_to_list(struct mlx5e_priv *priv,
 
 static bool outer_header_zero(u32 *match_criteria)
 {
-	int size = MLX5_ST_SZ_BYTES(fte_match_param);
+	int size = MLX5_FLD_SZ_BYTES(fte_match_param, outer_headers);
 	char *outer_headers_c = MLX5_ADDR_OF(fte_match_param, match_criteria,
 					     outer_headers);
 
@@ -320,7 +320,7 @@ add_ethtool_flow_rule(struct mlx5e_priv *priv,
 
 	spec->match_criteria_enable = (!outer_header_zero(spec->match_criteria));
 	flow_act.flow_tag = MLX5_FS_DEFAULT_FLOW_TAG;
-	rule = mlx5_add_flow_rules(ft, spec, &flow_act, dst, 1);
+	rule = mlx5_add_flow_rules(ft, spec, &flow_act, dst, dst ? 1 : 0);
 	if (IS_ERR(rule)) {
 		err = PTR_ERR(rule);
 		netdev_err(priv->netdev, "%s: failed to add ethtool steering rule: %d\n",
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en_main.c b/drivers/net/ethernet/mellanox/mlx5/core/en_main.c
index 1eac5003084f..57f31fa478ce 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/en_main.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en_main.c
@@ -377,7 +377,6 @@ static void mlx5e_async_event(struct mlx5_core_dev *mdev, void *vpriv,
 		break;
 	case MLX5_DEV_EVENT_PPS:
 		eqe = (struct mlx5_eqe *)param;
-		ptp_event.type = PTP_CLOCK_EXTTS;
 		ptp_event.index = eqe->data.pps.pin;
 		ptp_event.timestamp =
 			timecounter_cyc2time(&priv->tstamp.clock,
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/eq.c b/drivers/net/ethernet/mellanox/mlx5/core/eq.c
index af51a5d2b912..52b9a64cd3a2 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/eq.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/eq.c
@@ -698,7 +698,7 @@ int mlx5_start_eqs(struct mlx5_core_dev *dev)
 	else
 		mlx5_core_dbg(dev, "port_module_event is not set\n");
 
-	if (MLX5_CAP_GEN(dev, pps))
+	if (MLX5_PPS_CAP(dev))
 		async_event_mask |= (1ull << MLX5_EVENT_TYPE_PPS_EVENT);
 
 	if (MLX5_CAP_GEN(dev, fpga))
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/eswitch.c b/drivers/net/ethernet/mellanox/mlx5/core/eswitch.c
index 89bfda419efe..8b18cc9ec026 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/eswitch.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/eswitch.c
@@ -1668,7 +1668,8 @@ void mlx5_eswitch_disable_sriov(struct mlx5_eswitch *esw)
 	int i;
 
 	if (!esw || !MLX5_CAP_GEN(esw->dev, vport_group_manager) ||
-	    MLX5_CAP_GEN(esw->dev, port_type) != MLX5_CAP_PORT_TYPE_ETH)
+	    MLX5_CAP_GEN(esw->dev, port_type) != MLX5_CAP_PORT_TYPE_ETH ||
+	    esw->mode == SRIOV_NONE)
 		return;
 
 	esw_info(esw->dev, "disable SRIOV: active vports(%d) mode(%d)\n",
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/fpga/Makefile b/drivers/net/ethernet/mellanox/mlx5/core/fpga/Makefile
new file mode 100644
index 000000000000..d8e17110f25d
--- /dev/null
+++ b/drivers/net/ethernet/mellanox/mlx5/core/fpga/Makefile
@@ -0,0 +1 @@
+subdir-ccflags-y += -I$(src)/..
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/fpga/core.c b/drivers/net/ethernet/mellanox/mlx5/core/fpga/core.c
index 31e5a2627eb8..9034e9960a76 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/fpga/core.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/fpga/core.c
@@ -102,7 +102,7 @@ static int mlx5_fpga_device_load_check(struct mlx5_fpga_device *fdev)
 	return 0;
 }
 
-int mlx5_fpga_device_brb(struct mlx5_fpga_device *fdev)
+static int mlx5_fpga_device_brb(struct mlx5_fpga_device *fdev)
 {
 	int err;
 	struct mlx5_core_dev *mdev = fdev->mdev;
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/fpga/ipsec.c b/drivers/net/ethernet/mellanox/mlx5/core/fpga/ipsec.c
index 42970e2a05ff..35d0e33381ca 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/fpga/ipsec.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/fpga/ipsec.c
@@ -275,7 +275,7 @@ int mlx5_fpga_ipsec_counters_read(struct mlx5_core_dev *mdev, u64 *counters,
 {
 	struct mlx5_fpga_device *fdev = mdev->fpga;
 	unsigned int i;
-	u32 *data;
+	__be32 *data;
 	u32 count;
 	u64 addr;
 	int ret;
@@ -290,7 +290,7 @@ int mlx5_fpga_ipsec_counters_read(struct mlx5_core_dev *mdev, u64 *counters,
 
 	count = mlx5_fpga_ipsec_counters_count(mdev);
 
-	data = kzalloc(sizeof(u32) * count * 2, GFP_KERNEL);
+	data = kzalloc(sizeof(*data) * count * 2, GFP_KERNEL);
 	if (!data) {
 		ret = -ENOMEM;
 		goto out;
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/ipoib/Makefile b/drivers/net/ethernet/mellanox/mlx5/core/ipoib/Makefile
new file mode 100644
index 000000000000..d8e17110f25d
--- /dev/null
+++ b/drivers/net/ethernet/mellanox/mlx5/core/ipoib/Makefile
@@ -0,0 +1 @@
+subdir-ccflags-y += -I$(src)/..
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/ipoib/ipoib.c b/drivers/net/ethernet/mellanox/mlx5/core/ipoib/ipoib.c
index 1ee5bce85901..85298051a3e4 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/ipoib/ipoib.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/ipoib/ipoib.c
@@ -178,8 +178,6 @@ out:
 
 static void mlx5i_destroy_underlay_qp(struct mlx5_core_dev *mdev, struct mlx5_core_qp *qp)
 {
-	mlx5_fs_remove_rx_underlay_qpn(mdev, qp->qpn);
-
 	mlx5_core_destroy_qp(mdev, qp);
 }
 
@@ -194,8 +192,6 @@ static int mlx5i_init_tx(struct mlx5e_priv *priv)
 		return err;
 	}
 
-	mlx5_fs_add_rx_underlay_qpn(priv->mdev, ipriv->qp.qpn);
-
 	err = mlx5e_create_tis(priv->mdev, 0 /* tc */, ipriv->qp.qpn, &priv->tisn[0]);
 	if (err) {
 		mlx5_core_warn(priv->mdev, "create tis failed, %d\n", err);
@@ -253,6 +249,7 @@ static void mlx5i_destroy_flow_steering(struct mlx5e_priv *priv)
 
 static int mlx5i_init_rx(struct mlx5e_priv *priv)
 {
+	struct mlx5i_priv *ipriv  = priv->ppriv;
 	int err;
 
 	err = mlx5e_create_indirect_rqt(priv);
@@ -271,12 +268,18 @@ static int mlx5i_init_rx(struct mlx5e_priv *priv)
 	if (err)
 		goto err_destroy_indirect_tirs;
 
-	err = mlx5i_create_flow_steering(priv);
+	err = mlx5_fs_add_rx_underlay_qpn(priv->mdev, ipriv->qp.qpn);
 	if (err)
 		goto err_destroy_direct_tirs;
 
+	err = mlx5i_create_flow_steering(priv);
+	if (err)
+		goto err_remove_rx_underlay_qpn;
+
 	return 0;
 
+err_remove_rx_underlay_qpn:
+	mlx5_fs_remove_rx_underlay_qpn(priv->mdev, ipriv->qp.qpn);
 err_destroy_direct_tirs:
 	mlx5e_destroy_direct_tirs(priv);
 err_destroy_indirect_tirs:
@@ -290,6 +293,9 @@ err_destroy_indirect_rqts:
 
 static void mlx5i_cleanup_rx(struct mlx5e_priv *priv)
 {
+	struct mlx5i_priv *ipriv  = priv->ppriv;
+
+	mlx5_fs_remove_rx_underlay_qpn(priv->mdev, ipriv->qp.qpn);
 	mlx5i_destroy_flow_steering(priv);
 	mlx5e_destroy_direct_tirs(priv);
 	mlx5e_destroy_indirect_tirs(priv);
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/lag.c b/drivers/net/ethernet/mellanox/mlx5/core/lag.c
index a3a836bdcfd2..f26f97fe4666 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/lag.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/lag.c
@@ -162,22 +162,17 @@ static bool mlx5_lag_is_bonded(struct mlx5_lag *ldev)
 static void mlx5_infer_tx_affinity_mapping(struct lag_tracker *tracker,
 					   u8 *port1, u8 *port2)
 {
-	if (tracker->tx_type == NETDEV_LAG_TX_TYPE_ACTIVEBACKUP) {
-		if (tracker->netdev_state[0].tx_enabled) {
-			*port1 = 1;
-			*port2 = 1;
-		} else {
-			*port1 = 2;
-			*port2 = 2;
-		}
-	} else {
-		*port1 = 1;
-		*port2 = 2;
-		if (!tracker->netdev_state[0].link_up)
-			*port1 = 2;
-		else if (!tracker->netdev_state[1].link_up)
-			*port2 = 1;
+	*port1 = 1;
+	*port2 = 2;
+	if (!tracker->netdev_state[0].tx_enabled ||
+	    !tracker->netdev_state[0].link_up) {
+		*port1 = 2;
+		return;
 	}
+
+	if (!tracker->netdev_state[1].tx_enabled ||
+	    !tracker->netdev_state[1].link_up)
+		*port2 = 1;
 }
 
 static void mlx5_activate_lag(struct mlx5_lag *ldev,
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/lib/Makefile b/drivers/net/ethernet/mellanox/mlx5/core/lib/Makefile
new file mode 100644
index 000000000000..d8e17110f25d
--- /dev/null
+++ b/drivers/net/ethernet/mellanox/mlx5/core/lib/Makefile
@@ -0,0 +1 @@
+subdir-ccflags-y += -I$(src)/..
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/lib/gid.c b/drivers/net/ethernet/mellanox/mlx5/core/lib/gid.c
index de2aed44ab85..573f59f46d41 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/lib/gid.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/lib/gid.c
@@ -34,6 +34,7 @@
 #include <linux/etherdevice.h>
 #include <linux/idr.h>
 #include "mlx5_core.h"
+#include "lib/mlx5.h"
 
 void mlx5_init_reserved_gids(struct mlx5_core_dev *dev)
 {
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/mlx5_core.h b/drivers/net/ethernet/mellanox/mlx5/core/mlx5_core.h
index 6a3d6bef7dd4..6a263e8d883a 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/mlx5_core.h
+++ b/drivers/net/ethernet/mellanox/mlx5/core/mlx5_core.h
@@ -154,6 +154,11 @@ int mlx5_set_mtpps(struct mlx5_core_dev *mdev, u32 *mtpps, u32 mtpps_size);
 int mlx5_query_mtppse(struct mlx5_core_dev *mdev, u8 pin, u8 *arm, u8 *mode);
 int mlx5_set_mtppse(struct mlx5_core_dev *mdev, u8 pin, u8 arm, u8 mode);
 
+#define MLX5_PPS_CAP(mdev) (MLX5_CAP_GEN((mdev), pps) &&		\
+			    MLX5_CAP_GEN((mdev), pps_modify) &&		\
+			    MLX5_CAP_MCAM_FEATURE((mdev), mtpps_fs) &&	\
+			    MLX5_CAP_MCAM_FEATURE((mdev), mtpps_enh_out_per_adj))
+
 int mlx5_firmware_flash(struct mlx5_core_dev *dev, const struct firmware *fw);
 
 void mlx5e_init(void);
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/sriov.c b/drivers/net/ethernet/mellanox/mlx5/core/sriov.c
index bcdf7779c48d..bf99d40e30b4 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/sriov.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/sriov.c
@@ -88,7 +88,11 @@ static void mlx5_device_disable_sriov(struct mlx5_core_dev *dev)
 	int vf;
 
 	if (!sriov->enabled_vfs)
+#ifdef CONFIG_MLX5_CORE_EN
+		goto disable_sriov_resources;
+#else
 		return;
+#endif
 
 	for (vf = 0; vf < sriov->num_vfs; vf++) {
 		if (!sriov->vfs_ctx[vf].enabled)
@@ -103,6 +107,7 @@ static void mlx5_device_disable_sriov(struct mlx5_core_dev *dev)
 	}
 
 #ifdef CONFIG_MLX5_CORE_EN
+disable_sriov_resources:
 	mlx5_eswitch_disable_sriov(dev->priv.eswitch);
 #endif
 
diff --git a/drivers/net/ethernet/mellanox/mlxsw/spectrum_router.c b/drivers/net/ethernet/mellanox/mlxsw/spectrum_router.c
index 192cb93e7669..4b2e0fd7d51e 100644
--- a/drivers/net/ethernet/mellanox/mlxsw/spectrum_router.c
+++ b/drivers/net/ethernet/mellanox/mlxsw/spectrum_router.c
@@ -1512,6 +1512,10 @@ mlxsw_sp_nexthop_group_mac_update(struct mlxsw_sp *mlxsw_sp,
 static int mlxsw_sp_fib_entry_update(struct mlxsw_sp *mlxsw_sp,
 				     struct mlxsw_sp_fib_entry *fib_entry);
 
+static bool
+mlxsw_sp_fib_node_entry_is_first(const struct mlxsw_sp_fib_node *fib_node,
+				 const struct mlxsw_sp_fib_entry *fib_entry);
+
 static int
 mlxsw_sp_nexthop_fib_entries_update(struct mlxsw_sp *mlxsw_sp,
 				    struct mlxsw_sp_nexthop_group *nh_grp)
@@ -1520,6 +1524,9 @@ mlxsw_sp_nexthop_fib_entries_update(struct mlxsw_sp *mlxsw_sp,
 	int err;
 
 	list_for_each_entry(fib_entry, &nh_grp->fib_list, nexthop_group_node) {
+		if (!mlxsw_sp_fib_node_entry_is_first(fib_entry->fib_node,
+						      fib_entry))
+			continue;
 		err = mlxsw_sp_fib_entry_update(mlxsw_sp, fib_entry);
 		if (err)
 			return err;
@@ -1790,6 +1797,7 @@ static int mlxsw_sp_nexthop_init(struct mlxsw_sp *mlxsw_sp,
 	return 0;
 
 err_nexthop_neigh_init:
+	mlxsw_sp_nexthop_rif_fini(nh);
 	mlxsw_sp_nexthop_remove(mlxsw_sp, nh);
 	return err;
 }
@@ -1866,6 +1874,7 @@ mlxsw_sp_nexthop_group_create(struct mlxsw_sp *mlxsw_sp, struct fib_info *fi)
 	nh_grp->gateway = fi->fib_nh->nh_scope == RT_SCOPE_LINK;
 	nh_grp->count = fi->fib_nhs;
 	nh_grp->key.fi = fi;
+	fib_info_hold(fi);
 	for (i = 0; i < nh_grp->count; i++) {
 		nh = &nh_grp->nexthops[i];
 		fib_nh = &fi->fib_nh[i];
@@ -1885,6 +1894,7 @@ err_nexthop_init:
 		nh = &nh_grp->nexthops[i];
 		mlxsw_sp_nexthop_fini(mlxsw_sp, nh);
 	}
+	fib_info_put(nh_grp->key.fi);
 	kfree(nh_grp);
 	return ERR_PTR(err);
 }
@@ -1903,6 +1913,7 @@ mlxsw_sp_nexthop_group_destroy(struct mlxsw_sp *mlxsw_sp,
 	}
 	mlxsw_sp_nexthop_group_refresh(mlxsw_sp, nh_grp);
 	WARN_ON_ONCE(nh_grp->adj_index_valid);
+	fib_info_put(nh_grp->key.fi);
 	kfree(nh_grp);
 }
 
diff --git a/drivers/net/ethernet/mellanox/mlxsw/spectrum_switchdev.c b/drivers/net/ethernet/mellanox/mlxsw/spectrum_switchdev.c
index cd89a3e6cd81..5eb1606765c5 100644
--- a/drivers/net/ethernet/mellanox/mlxsw/spectrum_switchdev.c
+++ b/drivers/net/ethernet/mellanox/mlxsw/spectrum_switchdev.c
@@ -626,8 +626,8 @@ static int mlxsw_sp_port_attr_br_flags_set(struct mlxsw_sp_port *mlxsw_sp_port,
 
 	bridge_port = mlxsw_sp_bridge_port_find(mlxsw_sp_port->mlxsw_sp->bridge,
 						orig_dev);
-	if (WARN_ON(!bridge_port))
-		return -EINVAL;
+	if (!bridge_port)
+		return 0;
 
 	err = mlxsw_sp_bridge_port_flood_table_set(mlxsw_sp_port, bridge_port,
 						   MLXSW_SP_FLOOD_TYPE_UC,
@@ -711,8 +711,8 @@ static int mlxsw_sp_port_attr_mc_router_set(struct mlxsw_sp_port *mlxsw_sp_port,
 
 	bridge_port = mlxsw_sp_bridge_port_find(mlxsw_sp_port->mlxsw_sp->bridge,
 						orig_dev);
-	if (WARN_ON(!bridge_port))
-		return -EINVAL;
+	if (!bridge_port)
+		return 0;
 
 	if (!bridge_port->bridge_device->multicast_enabled)
 		return 0;
@@ -979,7 +979,6 @@ mlxsw_sp_bridge_port_vlan_add(struct mlxsw_sp_port *mlxsw_sp_port,
 {
 	u16 pvid = mlxsw_sp_port_pvid_determine(mlxsw_sp_port, vid, is_pvid);
 	struct mlxsw_sp_port_vlan *mlxsw_sp_port_vlan;
-	struct mlxsw_sp_bridge_vlan *bridge_vlan;
 	u16 old_pvid = mlxsw_sp_port->pvid;
 	int err;
 
@@ -1000,8 +999,6 @@ mlxsw_sp_bridge_port_vlan_add(struct mlxsw_sp_port *mlxsw_sp_port,
 	if (err)
 		goto err_port_vlan_bridge_join;
 
-	bridge_vlan = mlxsw_sp_bridge_vlan_find(bridge_port, vid);
-
 	return 0;
 
 err_port_vlan_bridge_join:
@@ -1286,15 +1283,15 @@ static int mlxsw_sp_port_mdb_add(struct mlxsw_sp_port *mlxsw_sp_port,
 		return 0;
 
 	bridge_port = mlxsw_sp_bridge_port_find(mlxsw_sp->bridge, orig_dev);
-	if (WARN_ON(!bridge_port))
-		return -EINVAL;
+	if (!bridge_port)
+		return 0;
 
 	bridge_device = bridge_port->bridge_device;
 	mlxsw_sp_port_vlan = mlxsw_sp_port_vlan_find_by_bridge(mlxsw_sp_port,
 							       bridge_device,
 							       mdb->vid);
-	if (WARN_ON(!mlxsw_sp_port_vlan))
-		return -EINVAL;
+	if (!mlxsw_sp_port_vlan)
+		return 0;
 
 	fid_index = mlxsw_sp_fid_index(mlxsw_sp_port_vlan->fid);
 
@@ -1410,15 +1407,15 @@ static int mlxsw_sp_port_mdb_del(struct mlxsw_sp_port *mlxsw_sp_port,
 	int err = 0;
 
 	bridge_port = mlxsw_sp_bridge_port_find(mlxsw_sp->bridge, orig_dev);
-	if (WARN_ON(!bridge_port))
-		return -EINVAL;
+	if (!bridge_port)
+		return 0;
 
 	bridge_device = bridge_port->bridge_device;
 	mlxsw_sp_port_vlan = mlxsw_sp_port_vlan_find_by_bridge(mlxsw_sp_port,
 							       bridge_device,
 							       mdb->vid);
-	if (WARN_ON(!mlxsw_sp_port_vlan))
-		return -EINVAL;
+	if (!mlxsw_sp_port_vlan)
+		return 0;
 
 	fid_index = mlxsw_sp_fid_index(mlxsw_sp_port_vlan->fid);
 
@@ -1919,6 +1916,8 @@ static int mlxsw_sp_switchdev_event(struct notifier_block *unused,
 		memcpy(&switchdev_work->fdb_info, ptr,
 		       sizeof(switchdev_work->fdb_info));
 		switchdev_work->fdb_info.addr = kzalloc(ETH_ALEN, GFP_ATOMIC);
+		if (!switchdev_work->fdb_info.addr)
+			goto err_addr_alloc;
 		ether_addr_copy((u8 *)switchdev_work->fdb_info.addr,
 				fdb_info->addr);
 		/* Take a reference on the device. This can be either
@@ -1935,6 +1934,10 @@ static int mlxsw_sp_switchdev_event(struct notifier_block *unused,
 	mlxsw_core_schedule_work(&switchdev_work->work);
 
 	return NOTIFY_DONE;
+
+err_addr_alloc:
+	kfree(switchdev_work);
+	return NOTIFY_BAD;
 }
 
 static struct notifier_block mlxsw_sp_switchdev_notifier = {
@@ -1971,6 +1974,17 @@ static void mlxsw_sp_fdb_fini(struct mlxsw_sp *mlxsw_sp)
 
 }
 
+static void mlxsw_sp_mids_fini(struct mlxsw_sp *mlxsw_sp)
+{
+	struct mlxsw_sp_mid *mid, *tmp;
+
+	list_for_each_entry_safe(mid, tmp, &mlxsw_sp->bridge->mids_list, list) {
+		list_del(&mid->list);
+		clear_bit(mid->mid, mlxsw_sp->bridge->mids_bitmap);
+		kfree(mid);
+	}
+}
+
 int mlxsw_sp_switchdev_init(struct mlxsw_sp *mlxsw_sp)
 {
 	struct mlxsw_sp_bridge *bridge;
@@ -1993,7 +2007,7 @@ int mlxsw_sp_switchdev_init(struct mlxsw_sp *mlxsw_sp)
 void mlxsw_sp_switchdev_fini(struct mlxsw_sp *mlxsw_sp)
 {
 	mlxsw_sp_fdb_fini(mlxsw_sp);
-	WARN_ON(!list_empty(&mlxsw_sp->bridge->mids_list));
+	mlxsw_sp_mids_fini(mlxsw_sp);
 	WARN_ON(!list_empty(&mlxsw_sp->bridge->bridges_list));
 	kfree(mlxsw_sp->bridge);
 }
diff --git a/drivers/net/ethernet/netronome/nfp/flower/cmsg.c b/drivers/net/ethernet/netronome/nfp/flower/cmsg.c
index dd7fa9cf225f..b0837b58c3a1 100644
--- a/drivers/net/ethernet/netronome/nfp/flower/cmsg.c
+++ b/drivers/net/ethernet/netronome/nfp/flower/cmsg.c
@@ -115,14 +115,10 @@ nfp_flower_cmsg_portmod_rx(struct nfp_app *app, struct sk_buff *skb)
 		return;
 	}
 
-	if (link) {
+	if (link)
 		netif_carrier_on(netdev);
-		rtnl_lock();
-		dev_set_mtu(netdev, be16_to_cpu(msg->mtu));
-		rtnl_unlock();
-	} else {
+	else
 		netif_carrier_off(netdev);
-	}
 	rcu_read_unlock();
 }
 
diff --git a/drivers/net/ethernet/netronome/nfp/flower/metadata.c b/drivers/net/ethernet/netronome/nfp/flower/metadata.c
index fec0ff2ca94f..3226ddc55f99 100644
--- a/drivers/net/ethernet/netronome/nfp/flower/metadata.c
+++ b/drivers/net/ethernet/netronome/nfp/flower/metadata.c
@@ -419,7 +419,7 @@ int nfp_flower_metadata_init(struct nfp_app *app)
 	return 0;
 
 err_free_last_used:
-	kfree(priv->stats_ids.free_list.buf);
+	kfree(priv->mask_ids.last_used);
 err_free_mask_id:
 	kfree(priv->mask_ids.mask_id_free_list.buf);
 	return -ENOMEM;
diff --git a/drivers/net/ethernet/netronome/nfp/nfp_net_common.c b/drivers/net/ethernet/netronome/nfp/nfp_net_common.c
index 18750ff0ede6..9f77ce038a4a 100644
--- a/drivers/net/ethernet/netronome/nfp/nfp_net_common.c
+++ b/drivers/net/ethernet/netronome/nfp/nfp_net_common.c
@@ -513,6 +513,7 @@ nfp_net_tx_ring_init(struct nfp_net_tx_ring *tx_ring,
 	tx_ring->idx = idx;
 	tx_ring->r_vec = r_vec;
 	tx_ring->is_xdp = is_xdp;
+	u64_stats_init(&tx_ring->r_vec->tx_sync);
 
 	tx_ring->qcidx = tx_ring->idx * nn->stride_tx;
 	tx_ring->qcp_q = nn->tx_bar + NFP_QCP_QUEUE_OFF(tx_ring->qcidx);
@@ -532,6 +533,7 @@ nfp_net_rx_ring_init(struct nfp_net_rx_ring *rx_ring,
 
 	rx_ring->idx = idx;
 	rx_ring->r_vec = r_vec;
+	u64_stats_init(&rx_ring->r_vec->rx_sync);
 
 	rx_ring->fl_qcidx = rx_ring->idx * nn->stride_rx;
 	rx_ring->qcp_fl = nn->rx_bar + NFP_QCP_QUEUE_OFF(rx_ring->fl_qcidx);
@@ -906,8 +908,7 @@ static int nfp_net_tx(struct sk_buff *skb, struct net_device *netdev)
 	return NETDEV_TX_OK;
 
 err_unmap:
-	--f;
-	while (f >= 0) {
+	while (--f >= 0) {
 		frag = &skb_shinfo(skb)->frags[f];
 		dma_unmap_page(dp->dev, tx_ring->txbufs[wr_idx].dma_addr,
 			       skb_frag_size(frag), DMA_TO_DEVICE);
diff --git a/drivers/net/ethernet/qlogic/netxen/netxen_nic_hw.c b/drivers/net/ethernet/qlogic/netxen/netxen_nic_hw.c
index 66ff15d08bad..0a66389c06c2 100644
--- a/drivers/net/ethernet/qlogic/netxen/netxen_nic_hw.c
+++ b/drivers/net/ethernet/qlogic/netxen/netxen_nic_hw.c
@@ -2311,7 +2311,7 @@ netxen_md_rdqueue(struct netxen_adapter *adapter,
 				 loop_cnt++) {
 		NX_WR_DUMP_REG(select_addr, adapter->ahw.pci_base0, queue_id);
 		read_addr = queueEntry->read_addr;
-		for (k = 0; k < read_cnt; k--) {
+		for (k = 0; k < read_cnt; k++) {
 			NX_RD_DUMP_REG(read_addr, adapter->ahw.pci_base0,
 							&read_value);
 			*data_buff++ = read_value;
diff --git a/drivers/net/ethernet/qlogic/qed/qed_iwarp.c b/drivers/net/ethernet/qlogic/qed/qed_iwarp.c
index b251ebaec4db..9d989c96278c 100644
--- a/drivers/net/ethernet/qlogic/qed/qed_iwarp.c
+++ b/drivers/net/ethernet/qlogic/qed/qed_iwarp.c
@@ -575,7 +575,7 @@ qed_iwarp_print_tcp_ramrod(struct qed_hwfn *p_hwfn,
 
 	if (p_tcp_ramrod->tcp.ip_version == TCP_IPV4) {
 		DP_VERBOSE(p_hwfn, QED_MSG_RDMA,
-			   "local_ip=%pI4h:%x, remote_ip=%pI4h%x, vlan=%x\n",
+			   "local_ip=%pI4h:%x, remote_ip=%pI4h:%x, vlan=%x\n",
 			   p_tcp_ramrod->tcp.local_ip,
 			   p_tcp_ramrod->tcp.local_port,
 			   p_tcp_ramrod->tcp.remote_ip,
@@ -583,7 +583,7 @@ qed_iwarp_print_tcp_ramrod(struct qed_hwfn *p_hwfn,
 			   p_tcp_ramrod->tcp.vlan_id);
 	} else {
 		DP_VERBOSE(p_hwfn, QED_MSG_RDMA,
-			   "local_ip=%pI6h:%x, remote_ip=%pI6h:%x, vlan=%x\n",
+			   "local_ip=%pI6:%x, remote_ip=%pI6:%x, vlan=%x\n",
 			   p_tcp_ramrod->tcp.local_ip,
 			   p_tcp_ramrod->tcp.local_port,
 			   p_tcp_ramrod->tcp.remote_ip,
@@ -1519,7 +1519,7 @@ qed_iwarp_print_cm_info(struct qed_hwfn *p_hwfn,
 			   cm_info->vlan);
 	else
 		DP_VERBOSE(p_hwfn, QED_MSG_RDMA,
-			   "remote_ip %pI6h:%x, local_ip %pI6h:%x vlan=%x\n",
+			   "remote_ip %pI6:%x, local_ip %pI6:%x vlan=%x\n",
 			   cm_info->remote_ip, cm_info->remote_port,
 			   cm_info->local_ip, cm_info->local_port,
 			   cm_info->vlan);
diff --git a/drivers/net/ethernet/qlogic/qed/qed_mcp.c b/drivers/net/ethernet/qlogic/qed/qed_mcp.c
index 9da91045d167..3eb241657368 100644
--- a/drivers/net/ethernet/qlogic/qed/qed_mcp.c
+++ b/drivers/net/ethernet/qlogic/qed/qed_mcp.c
@@ -253,7 +253,7 @@ int qed_mcp_cmd_init(struct qed_hwfn *p_hwfn, struct qed_ptt *p_ptt)
 	size = MFW_DRV_MSG_MAX_DWORDS(p_info->mfw_mb_length) * sizeof(u32);
 	p_info->mfw_mb_cur = kzalloc(size, GFP_KERNEL);
 	p_info->mfw_mb_shadow = kzalloc(size, GFP_KERNEL);
-	if (!p_info->mfw_mb_shadow || !p_info->mfw_mb_addr)
+	if (!p_info->mfw_mb_cur || !p_info->mfw_mb_shadow)
 		goto err;
 
 	return 0;
diff --git a/drivers/net/ethernet/qualcomm/emac/emac.c b/drivers/net/ethernet/qualcomm/emac/emac.c
index 746d94e28470..60850bfa3d32 100644
--- a/drivers/net/ethernet/qualcomm/emac/emac.c
+++ b/drivers/net/ethernet/qualcomm/emac/emac.c
@@ -766,11 +766,13 @@ static void emac_shutdown(struct platform_device *pdev)
 	struct emac_adapter *adpt = netdev_priv(netdev);
 	struct emac_sgmii *sgmii = &adpt->phy;
 
-	/* Closing the SGMII turns off its interrupts */
-	sgmii->close(adpt);
+	if (netdev->flags & IFF_UP) {
+		/* Closing the SGMII turns off its interrupts */
+		sgmii->close(adpt);
 
-	/* Resetting the MAC turns off all DMA and its interrupts */
-	emac_mac_reset(adpt);
+		/* Resetting the MAC turns off all DMA and its interrupts */
+		emac_mac_reset(adpt);
+	}
 }
 
 static struct platform_driver emac_platform_driver = {
diff --git a/drivers/net/ethernet/sfc/ef10.c b/drivers/net/ethernet/sfc/ef10.c
index 761c518b2f92..13f72f5b18d2 100644
--- a/drivers/net/ethernet/sfc/ef10.c
+++ b/drivers/net/ethernet/sfc/ef10.c
@@ -5034,12 +5034,9 @@ static void efx_ef10_filter_uc_addr_list(struct efx_nic *efx)
 	struct efx_ef10_filter_table *table = efx->filter_state;
 	struct net_device *net_dev = efx->net_dev;
 	struct netdev_hw_addr *uc;
-	int addr_count;
 	unsigned int i;
 
-	addr_count = netdev_uc_count(net_dev);
 	table->uc_promisc = !!(net_dev->flags & IFF_PROMISC);
-	table->dev_uc_count = 1 + addr_count;
 	ether_addr_copy(table->dev_uc_list[0].addr, net_dev->dev_addr);
 	i = 1;
 	netdev_for_each_uc_addr(uc, net_dev) {
@@ -5050,6 +5047,8 @@ static void efx_ef10_filter_uc_addr_list(struct efx_nic *efx)
 		ether_addr_copy(table->dev_uc_list[i].addr, uc->addr);
 		i++;
 	}
+
+	table->dev_uc_count = i;
 }
 
 static void efx_ef10_filter_mc_addr_list(struct efx_nic *efx)
@@ -5057,12 +5056,11 @@ static void efx_ef10_filter_mc_addr_list(struct efx_nic *efx)
 	struct efx_ef10_filter_table *table = efx->filter_state;
 	struct net_device *net_dev = efx->net_dev;
 	struct netdev_hw_addr *mc;
-	unsigned int i, addr_count;
+	unsigned int i;
 
 	table->mc_overflow = false;
 	table->mc_promisc = !!(net_dev->flags & (IFF_PROMISC | IFF_ALLMULTI));
 
-	addr_count = netdev_mc_count(net_dev);
 	i = 0;
 	netdev_for_each_mc_addr(mc, net_dev) {
 		if (i >= EFX_EF10_FILTER_DEV_MC_MAX) {
diff --git a/drivers/net/ethernet/sfc/mcdi_port.c b/drivers/net/ethernet/sfc/mcdi_port.c
index c905971c5f3a..990a63d7fcb7 100644
--- a/drivers/net/ethernet/sfc/mcdi_port.c
+++ b/drivers/net/ethernet/sfc/mcdi_port.c
@@ -938,7 +938,6 @@ enum efx_stats_action {
 static int efx_mcdi_mac_stats(struct efx_nic *efx,
 			      enum efx_stats_action action, int clear)
 {
-	struct efx_ef10_nic_data *nic_data = efx->nic_data;
 	MCDI_DECLARE_BUF(inbuf, MC_CMD_MAC_STATS_IN_LEN);
 	int rc;
 	int change = action == EFX_STATS_PULL ? 0 : 1;
@@ -960,7 +959,12 @@ static int efx_mcdi_mac_stats(struct efx_nic *efx,
 			      MAC_STATS_IN_PERIODIC_NOEVENT, 1,
 			      MAC_STATS_IN_PERIOD_MS, period);
 	MCDI_SET_DWORD(inbuf, MAC_STATS_IN_DMA_LEN, dma_len);
-	MCDI_SET_DWORD(inbuf, MAC_STATS_IN_PORT_ID, nic_data->vport_id);
+
+	if (efx_nic_rev(efx) >= EFX_REV_HUNT_A0) {
+		struct efx_ef10_nic_data *nic_data = efx->nic_data;
+
+		MCDI_SET_DWORD(inbuf, MAC_STATS_IN_PORT_ID, nic_data->vport_id);
+	}
 
 	rc = efx_mcdi_rpc_quiet(efx, MC_CMD_MAC_STATS, inbuf, sizeof(inbuf),
 				NULL, 0, NULL);
diff --git a/drivers/net/ethernet/sgi/ioc3-eth.c b/drivers/net/ethernet/sgi/ioc3-eth.c
index b607936e1b3e..9c0488e0f08e 100644
--- a/drivers/net/ethernet/sgi/ioc3-eth.c
+++ b/drivers/net/ethernet/sgi/ioc3-eth.c
@@ -90,17 +90,13 @@ struct ioc3_private {
 	spinlock_t ioc3_lock;
 	struct mii_if_info mii;
 
+	struct net_device *dev;
 	struct pci_dev *pdev;
 
 	/* Members used by autonegotiation  */
 	struct timer_list ioc3_timer;
 };
 
-static inline struct net_device *priv_netdev(struct ioc3_private *dev)
-{
-	return (void *)dev - ((sizeof(struct net_device) + 31) & ~31);
-}
-
 static int ioc3_ioctl(struct net_device *dev, struct ifreq *rq, int cmd);
 static void ioc3_set_multicast_list(struct net_device *dev);
 static int ioc3_start_xmit(struct sk_buff *skb, struct net_device *dev);
@@ -427,7 +423,7 @@ static void ioc3_get_eaddr_nic(struct ioc3_private *ip)
 		nic[i] = nic_read_byte(ioc3);
 
 	for (i = 2; i < 8; i++)
-		priv_netdev(ip)->dev_addr[i - 2] = nic[i];
+		ip->dev->dev_addr[i - 2] = nic[i];
 }
 
 /*
@@ -439,7 +435,7 @@ static void ioc3_get_eaddr(struct ioc3_private *ip)
 {
 	ioc3_get_eaddr_nic(ip);
 
-	printk("Ethernet address is %pM.\n", priv_netdev(ip)->dev_addr);
+	printk("Ethernet address is %pM.\n", ip->dev->dev_addr);
 }
 
 static void __ioc3_set_mac_address(struct net_device *dev)
@@ -790,13 +786,12 @@ static void ioc3_timer(unsigned long data)
  */
 static int ioc3_mii_init(struct ioc3_private *ip)
 {
-	struct net_device *dev = priv_netdev(ip);
 	int i, found = 0, res = 0;
 	int ioc3_phy_workaround = 1;
 	u16 word;
 
 	for (i = 0; i < 32; i++) {
-		word = ioc3_mdio_read(dev, i, MII_PHYSID1);
+		word = ioc3_mdio_read(ip->dev, i, MII_PHYSID1);
 
 		if (word != 0xffff && word != 0x0000) {
 			found = 1;
@@ -1276,6 +1271,7 @@ static int ioc3_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
 	SET_NETDEV_DEV(dev, &pdev->dev);
 
 	ip = netdev_priv(dev);
+	ip->dev = dev;
 
 	dev->irq = pdev->irq;
 
diff --git a/drivers/net/ethernet/smsc/smsc911x.c b/drivers/net/ethernet/smsc/smsc911x.c
index ea1bbc355b4d..0b6a39b003a4 100644
--- a/drivers/net/ethernet/smsc/smsc911x.c
+++ b/drivers/net/ethernet/smsc/smsc911x.c
@@ -2467,6 +2467,10 @@ static int smsc911x_drv_probe(struct platform_device *pdev)
 	pdata = netdev_priv(dev);
 	dev->irq = irq;
 	pdata->ioaddr = ioremap_nocache(res->start, res_size);
+	if (!pdata->ioaddr) {
+		retval = -ENOMEM;
+		goto out_ioremap_fail;
+	}
 
 	pdata->dev = dev;
 	pdata->msg_enable = ((1 << debug) - 1);
@@ -2572,6 +2576,7 @@ out_enable_resources_fail:
 	smsc911x_free_resources(pdev);
 out_request_resources_fail:
 	iounmap(pdata->ioaddr);
+out_ioremap_fail:
 	free_netdev(dev);
 out_release_io_1:
 	release_mem_region(res->start, resource_size(res));
diff --git a/drivers/net/ethernet/stmicro/stmmac/dwmac-sun8i.c b/drivers/net/ethernet/stmicro/stmmac/dwmac-sun8i.c
index 6c2d1da05588..fffd6d5fc907 100644
--- a/drivers/net/ethernet/stmicro/stmmac/dwmac-sun8i.c
+++ b/drivers/net/ethernet/stmicro/stmmac/dwmac-sun8i.c
@@ -638,7 +638,7 @@ static int sun8i_dwmac_set_syscon(struct stmmac_priv *priv)
 {
 	struct sunxi_priv_data *gmac = priv->plat->bsp_priv;
 	struct device_node *node = priv->device->of_node;
-	int ret, phy_interface;
+	int ret;
 	u32 reg, val;
 
 	regmap_read(gmac->regmap, SYSCON_EMAC_REG, &val);
@@ -718,11 +718,7 @@ static int sun8i_dwmac_set_syscon(struct stmmac_priv *priv)
 	if (gmac->variant->support_rmii)
 		reg &= ~SYSCON_RMII_EN;
 
-	phy_interface = priv->plat->interface;
-	/* if PHY is internal, select the mode (xMII) used by the SoC */
-	if (gmac->use_internal_phy)
-		phy_interface = gmac->variant->internal_phy;
-	switch (phy_interface) {
+	switch (priv->plat->interface) {
 	case PHY_INTERFACE_MODE_MII:
 		/* default */
 		break;
@@ -936,7 +932,7 @@ static int sun8i_dwmac_probe(struct platform_device *pdev)
 	}
 
 	plat_dat->interface = of_get_phy_mode(dev->of_node);
-	if (plat_dat->interface == PHY_INTERFACE_MODE_INTERNAL) {
+	if (plat_dat->interface == gmac->variant->internal_phy) {
 		dev_info(&pdev->dev, "Will use internal PHY\n");
 		gmac->use_internal_phy = true;
 		gmac->ephy_clk = of_clk_get(plat_dat->phy_node, 0);
diff --git a/drivers/net/ethernet/stmicro/stmmac/dwmac1000_dma.c b/drivers/net/ethernet/stmicro/stmmac/dwmac1000_dma.c
index 22cf6353ba04..7ecf549c7f1c 100644
--- a/drivers/net/ethernet/stmicro/stmmac/dwmac1000_dma.c
+++ b/drivers/net/ethernet/stmicro/stmmac/dwmac1000_dma.c
@@ -205,7 +205,7 @@ static void dwmac1000_dump_dma_regs(void __iomem *ioaddr, u32 *reg_space)
 {
 	int i;
 
-	for (i = 0; i < 23; i++)
+	for (i = 0; i < NUM_DWMAC1000_DMA_REGS; i++)
 		if ((i < 12) || (i > 17))
 			reg_space[DMA_BUS_MODE / 4 + i] =
 				readl(ioaddr + DMA_BUS_MODE + i * 4);
diff --git a/drivers/net/ethernet/stmicro/stmmac/dwmac100_dma.c b/drivers/net/ethernet/stmicro/stmmac/dwmac100_dma.c
index eef2f222ce9a..6502b9aa3bf5 100644
--- a/drivers/net/ethernet/stmicro/stmmac/dwmac100_dma.c
+++ b/drivers/net/ethernet/stmicro/stmmac/dwmac100_dma.c
@@ -70,7 +70,7 @@ static void dwmac100_dump_dma_regs(void __iomem *ioaddr, u32 *reg_space)
 {
 	int i;
 
-	for (i = 0; i < 9; i++)
+	for (i = 0; i < NUM_DWMAC100_DMA_REGS; i++)
 		reg_space[DMA_BUS_MODE / 4 + i] =
 			readl(ioaddr + DMA_BUS_MODE + i * 4);
 
diff --git a/drivers/net/ethernet/stmicro/stmmac/dwmac4_core.c b/drivers/net/ethernet/stmicro/stmmac/dwmac4_core.c
index f233bf8b4ebb..c4407e8e39a3 100644
--- a/drivers/net/ethernet/stmicro/stmmac/dwmac4_core.c
+++ b/drivers/net/ethernet/stmicro/stmmac/dwmac4_core.c
@@ -117,7 +117,7 @@ static void dwmac4_tx_queue_routing(struct mac_device_info *hw,
 	void __iomem *ioaddr = hw->pcsr;
 	u32 value;
 
-	const struct stmmac_rx_routing route_possibilities[] = {
+	static const struct stmmac_rx_routing route_possibilities[] = {
 		{ GMAC_RXQCTRL_AVCPQ_MASK, GMAC_RXQCTRL_AVCPQ_SHIFT },
 		{ GMAC_RXQCTRL_PTPQ_MASK, GMAC_RXQCTRL_PTPQ_SHIFT },
 		{ GMAC_RXQCTRL_DCBCPQ_MASK, GMAC_RXQCTRL_DCBCPQ_SHIFT },
diff --git a/drivers/net/ethernet/stmicro/stmmac/dwmac_dma.h b/drivers/net/ethernet/stmicro/stmmac/dwmac_dma.h
index 9091df86723a..adc54006f884 100644
--- a/drivers/net/ethernet/stmicro/stmmac/dwmac_dma.h
+++ b/drivers/net/ethernet/stmicro/stmmac/dwmac_dma.h
@@ -136,6 +136,9 @@
 #define DMA_STATUS_TI	0x00000001	/* Transmit Interrupt */
 #define DMA_CONTROL_FTF		0x00100000	/* Flush transmit FIFO */
 
+#define NUM_DWMAC100_DMA_REGS	9
+#define NUM_DWMAC1000_DMA_REGS	23
+
 void dwmac_enable_dma_transmission(void __iomem *ioaddr);
 void dwmac_enable_dma_irq(void __iomem *ioaddr, u32 chan);
 void dwmac_disable_dma_irq(void __iomem *ioaddr, u32 chan);
diff --git a/drivers/net/ethernet/stmicro/stmmac/stmmac_ethtool.c b/drivers/net/ethernet/stmicro/stmmac/stmmac_ethtool.c
index babb39c646ff..af30b4857c3b 100644
--- a/drivers/net/ethernet/stmicro/stmmac/stmmac_ethtool.c
+++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_ethtool.c
@@ -33,6 +33,8 @@
 #define MAC100_ETHTOOL_NAME	"st_mac100"
 #define GMAC_ETHTOOL_NAME	"st_gmac"
 
+#define ETHTOOL_DMA_OFFSET	55
+
 struct stmmac_stats {
 	char stat_string[ETH_GSTRING_LEN];
 	int sizeof_stat;
@@ -442,6 +444,9 @@ static void stmmac_ethtool_gregs(struct net_device *dev,
 
 	priv->hw->mac->dump_regs(priv->hw, reg_space);
 	priv->hw->dma->dump_regs(priv->ioaddr, reg_space);
+	/* Copy DMA registers to where ethtool expects them */
+	memcpy(&reg_space[ETHTOOL_DMA_OFFSET], &reg_space[DMA_BUS_MODE / 4],
+	       NUM_DWMAC1000_DMA_REGS * 4);
 }
 
 static void
diff --git a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
index 19bba6281dab..1763e48c84e2 100644
--- a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
+++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
@@ -1449,7 +1449,7 @@ static void free_dma_rx_desc_resources(struct stmmac_priv *priv)
 static void free_dma_tx_desc_resources(struct stmmac_priv *priv)
 {
 	u32 tx_count = priv->plat->tx_queues_to_use;
-	u32 queue = 0;
+	u32 queue;
 
 	/* Free TX queue resources */
 	for (queue = 0; queue < tx_count; queue++) {
@@ -1498,7 +1498,7 @@ static int alloc_dma_rx_desc_resources(struct stmmac_priv *priv)
 						    sizeof(dma_addr_t),
 						    GFP_KERNEL);
 		if (!rx_q->rx_skbuff_dma)
-			return -ENOMEM;
+			goto err_dma;
 
 		rx_q->rx_skbuff = kmalloc_array(DMA_RX_SIZE,
 						sizeof(struct sk_buff *),
@@ -1561,13 +1561,13 @@ static int alloc_dma_tx_desc_resources(struct stmmac_priv *priv)
 						    sizeof(*tx_q->tx_skbuff_dma),
 						    GFP_KERNEL);
 		if (!tx_q->tx_skbuff_dma)
-			return -ENOMEM;
+			goto err_dma;
 
 		tx_q->tx_skbuff = kmalloc_array(DMA_TX_SIZE,
 						sizeof(struct sk_buff *),
 						GFP_KERNEL);
 		if (!tx_q->tx_skbuff)
-			goto err_dma_buffers;
+			goto err_dma;
 
 		if (priv->extend_desc) {
 			tx_q->dma_etx = dma_zalloc_coherent(priv->device,
@@ -1577,7 +1577,7 @@ static int alloc_dma_tx_desc_resources(struct stmmac_priv *priv)
 							    &tx_q->dma_tx_phy,
 							    GFP_KERNEL);
 			if (!tx_q->dma_etx)
-				goto err_dma_buffers;
+				goto err_dma;
 		} else {
 			tx_q->dma_tx = dma_zalloc_coherent(priv->device,
 							   DMA_TX_SIZE *
@@ -1586,13 +1586,13 @@ static int alloc_dma_tx_desc_resources(struct stmmac_priv *priv)
 							   &tx_q->dma_tx_phy,
 							   GFP_KERNEL);
 			if (!tx_q->dma_tx)
-				goto err_dma_buffers;
+				goto err_dma;
 		}
 	}
 
 	return 0;
 
-err_dma_buffers:
+err_dma:
 	free_dma_tx_desc_resources(priv);
 
 	return ret;
@@ -4120,8 +4120,15 @@ int stmmac_dvr_probe(struct device *device,
 	if ((phyaddr >= 0) && (phyaddr <= 31))
 		priv->plat->phy_addr = phyaddr;
 
-	if (priv->plat->stmmac_rst)
+	if (priv->plat->stmmac_rst) {
+		ret = reset_control_assert(priv->plat->stmmac_rst);
 		reset_control_deassert(priv->plat->stmmac_rst);
+		/* Some reset controllers have only reset callback instead of
+		 * assert + deassert callbacks pair.
+		 */
+		if (ret == -ENOTSUPP)
+			reset_control_reset(priv->plat->stmmac_rst);
+	}
 
 	/* Init MAC and get the capabilities */
 	ret = stmmac_hw_init(priv);
diff --git a/drivers/net/ethernet/stmicro/stmmac/stmmac_mdio.c b/drivers/net/ethernet/stmicro/stmmac/stmmac_mdio.c
index db157a47000c..72ec711fcba2 100644
--- a/drivers/net/ethernet/stmicro/stmmac/stmmac_mdio.c
+++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_mdio.c
@@ -204,6 +204,7 @@ int stmmac_mdio_register(struct net_device *ndev)
 	struct stmmac_priv *priv = netdev_priv(ndev);
 	struct stmmac_mdio_bus_data *mdio_bus_data = priv->plat->mdio_bus_data;
 	struct device_node *mdio_node = priv->plat->mdio_node;
+	struct device *dev = ndev->dev.parent;
 	int addr, found;
 
 	if (!mdio_bus_data)
@@ -237,7 +238,7 @@ int stmmac_mdio_register(struct net_device *ndev)
 	else
 		err = mdiobus_register(new_bus);
 	if (err != 0) {
-		netdev_err(ndev, "Cannot register the MDIO bus\n");
+		dev_err(dev, "Cannot register the MDIO bus\n");
 		goto bus_register_fail;
 	}
 
@@ -285,14 +286,12 @@ int stmmac_mdio_register(struct net_device *ndev)
 			irq_str = irq_num;
 			break;
 		}
-		netdev_info(ndev, "PHY ID %08x at %d IRQ %s (%s)%s\n",
-			    phydev->phy_id, addr, irq_str, phydev_name(phydev),
-			    act ? " active" : "");
+		phy_attached_info(phydev);
 		found = 1;
 	}
 
 	if (!found && !mdio_node) {
-		netdev_warn(ndev, "No PHY found\n");
+		dev_warn(dev, "No PHY found\n");
 		mdiobus_unregister(new_bus);
 		mdiobus_free(new_bus);
 		return -ENODEV;
diff --git a/drivers/net/ethernet/sun/niu.c b/drivers/net/ethernet/sun/niu.c
index 46cb7f8955a2..4bb04aaf9650 100644
--- a/drivers/net/ethernet/sun/niu.c
+++ b/drivers/net/ethernet/sun/niu.c
@@ -9532,7 +9532,7 @@ static struct niu_parent *niu_get_parent(struct niu *np,
 		p = niu_new_parent(np, id, ptype);
 
 	if (p) {
-		char port_name[6];
+		char port_name[8];
 		int err;
 
 		sprintf(port_name, "port%d", port);
@@ -9553,7 +9553,7 @@ static void niu_put_parent(struct niu *np)
 {
 	struct niu_parent *p = np->parent;
 	u8 port = np->port;
-	char port_name[6];
+	char port_name[8];
 
 	BUG_ON(!p || p->ports[port] != np);
 
diff --git a/drivers/net/ethernet/sun/sunhme.h b/drivers/net/ethernet/sun/sunhme.h
index 3af540adb3c5..fca1bca7f69d 100644
--- a/drivers/net/ethernet/sun/sunhme.h
+++ b/drivers/net/ethernet/sun/sunhme.h
@@ -13,9 +13,9 @@
 /* Happy Meal global registers. */
 #define GREG_SWRESET	0x000UL	/* Software Reset  */
 #define GREG_CFG	0x004UL	/* Config Register */
-#define GREG_STAT	0x108UL	/* Status          */
-#define GREG_IMASK	0x10cUL	/* Interrupt Mask  */
-#define GREG_REG_SIZE	0x110UL
+#define GREG_STAT	0x100UL	/* Status          */
+#define GREG_IMASK	0x104UL	/* Interrupt Mask  */
+#define GREG_REG_SIZE	0x108UL
 
 /* Global reset register. */
 #define GREG_RESET_ETX         0x01
diff --git a/drivers/net/ethernet/tehuti/tehuti.c b/drivers/net/ethernet/tehuti/tehuti.c
index 711fbbbc4b1f..163d8d16bc24 100644
--- a/drivers/net/ethernet/tehuti/tehuti.c
+++ b/drivers/net/ethernet/tehuti/tehuti.c
@@ -654,6 +654,8 @@ static int bdx_ioctl_priv(struct net_device *ndev, struct ifreq *ifr, int cmd)
 			RET(-EFAULT);
 		}
 		DBG("%d 0x%x 0x%x\n", data[0], data[1], data[2]);
+	} else {
+		return -EOPNOTSUPP;
 	}
 
 	if (!capable(CAP_SYS_RAWIO))
diff --git a/drivers/net/ethernet/ti/cpsw.c b/drivers/net/ethernet/ti/cpsw.c
index 1850e348f555..badd0a8caeb9 100644
--- a/drivers/net/ethernet/ti/cpsw.c
+++ b/drivers/net/ethernet/ti/cpsw.c
@@ -3089,6 +3089,31 @@ static int cpsw_probe(struct platform_device *pdev)
 			cpsw->quirk_irq = true;
 	}
 
+	ndev->features |= NETIF_F_HW_VLAN_CTAG_FILTER;
+
+	ndev->netdev_ops = &cpsw_netdev_ops;
+	ndev->ethtool_ops = &cpsw_ethtool_ops;
+	netif_napi_add(ndev, &cpsw->napi_rx, cpsw_rx_poll, CPSW_POLL_WEIGHT);
+	netif_tx_napi_add(ndev, &cpsw->napi_tx, cpsw_tx_poll, CPSW_POLL_WEIGHT);
+	cpsw_split_res(ndev);
+
+	/* register the network device */
+	SET_NETDEV_DEV(ndev, &pdev->dev);
+	ret = register_netdev(ndev);
+	if (ret) {
+		dev_err(priv->dev, "error registering net device\n");
+		ret = -ENODEV;
+		goto clean_ale_ret;
+	}
+
+	if (cpsw->data.dual_emac) {
+		ret = cpsw_probe_dual_emac(priv);
+		if (ret) {
+			cpsw_err(priv, probe, "error probe slave 2 emac interface\n");
+			goto clean_unregister_netdev_ret;
+		}
+	}
+
 	/* Grab RX and TX IRQs. Note that we also have RX_THRESHOLD and
 	 * MISC IRQs which are always kept disabled with this driver so
 	 * we will not request them.
@@ -3127,33 +3152,9 @@ static int cpsw_probe(struct platform_device *pdev)
 		goto clean_ale_ret;
 	}
 
-	ndev->features |= NETIF_F_HW_VLAN_CTAG_FILTER;
-
-	ndev->netdev_ops = &cpsw_netdev_ops;
-	ndev->ethtool_ops = &cpsw_ethtool_ops;
-	netif_napi_add(ndev, &cpsw->napi_rx, cpsw_rx_poll, CPSW_POLL_WEIGHT);
-	netif_tx_napi_add(ndev, &cpsw->napi_tx, cpsw_tx_poll, CPSW_POLL_WEIGHT);
-	cpsw_split_res(ndev);
-
-	/* register the network device */
-	SET_NETDEV_DEV(ndev, &pdev->dev);
-	ret = register_netdev(ndev);
-	if (ret) {
-		dev_err(priv->dev, "error registering net device\n");
-		ret = -ENODEV;
-		goto clean_ale_ret;
-	}
-
 	cpsw_notice(priv, probe,
 		    "initialized device (regs %pa, irq %d, pool size %d)\n",
 		    &ss_res->start, ndev->irq, dma_params.descs_pool_size);
-	if (cpsw->data.dual_emac) {
-		ret = cpsw_probe_dual_emac(priv);
-		if (ret) {
-			cpsw_err(priv, probe, "error probe slave 2 emac interface\n");
-			goto clean_unregister_netdev_ret;
-		}
-	}
 
 	pm_runtime_put(&pdev->dev);
 
diff --git a/drivers/net/ethernet/ti/cpts.c b/drivers/net/ethernet/ti/cpts.c
index 32279d21c836..c2121d214f08 100644
--- a/drivers/net/ethernet/ti/cpts.c
+++ b/drivers/net/ethernet/ti/cpts.c
@@ -31,9 +31,18 @@
 
 #include "cpts.h"
 
+#define CPTS_SKB_TX_WORK_TIMEOUT 1 /* jiffies */
+
+struct cpts_skb_cb_data {
+	unsigned long tmo;
+};
+
 #define cpts_read32(c, r)	readl_relaxed(&c->reg->r)
 #define cpts_write32(c, v, r)	writel_relaxed(v, &c->reg->r)
 
+static int cpts_match(struct sk_buff *skb, unsigned int ptp_class,
+		      u16 ts_seqid, u8 ts_msgtype);
+
 static int event_expired(struct cpts_event *event)
 {
 	return time_after(jiffies, event->tmo);
@@ -77,6 +86,47 @@ static int cpts_purge_events(struct cpts *cpts)
 	return removed ? 0 : -1;
 }
 
+static bool cpts_match_tx_ts(struct cpts *cpts, struct cpts_event *event)
+{
+	struct sk_buff *skb, *tmp;
+	u16 seqid;
+	u8 mtype;
+	bool found = false;
+
+	mtype = (event->high >> MESSAGE_TYPE_SHIFT) & MESSAGE_TYPE_MASK;
+	seqid = (event->high >> SEQUENCE_ID_SHIFT) & SEQUENCE_ID_MASK;
+
+	/* no need to grab txq.lock as access is always done under cpts->lock */
+	skb_queue_walk_safe(&cpts->txq, skb, tmp) {
+		struct skb_shared_hwtstamps ssh;
+		unsigned int class = ptp_classify_raw(skb);
+		struct cpts_skb_cb_data *skb_cb =
+					(struct cpts_skb_cb_data *)skb->cb;
+
+		if (cpts_match(skb, class, seqid, mtype)) {
+			u64 ns = timecounter_cyc2time(&cpts->tc, event->low);
+
+			memset(&ssh, 0, sizeof(ssh));
+			ssh.hwtstamp = ns_to_ktime(ns);
+			skb_tstamp_tx(skb, &ssh);
+			found = true;
+			__skb_unlink(skb, &cpts->txq);
+			dev_consume_skb_any(skb);
+			dev_dbg(cpts->dev, "match tx timestamp mtype %u seqid %04x\n",
+				mtype, seqid);
+		} else if (time_after(jiffies, skb_cb->tmo)) {
+			/* timeout any expired skbs over 1s */
+			dev_dbg(cpts->dev,
+				"expiring tx timestamp mtype %u seqid %04x\n",
+				mtype, seqid);
+			__skb_unlink(skb, &cpts->txq);
+			dev_consume_skb_any(skb);
+		}
+	}
+
+	return found;
+}
+
 /*
  * Returns zero if matching event type was found.
  */
@@ -101,9 +151,15 @@ static int cpts_fifo_read(struct cpts *cpts, int match)
 		event->low = lo;
 		type = event_type(event);
 		switch (type) {
+		case CPTS_EV_TX:
+			if (cpts_match_tx_ts(cpts, event)) {
+				/* if the new event matches an existing skb,
+				 * then don't queue it
+				 */
+				break;
+			}
 		case CPTS_EV_PUSH:
 		case CPTS_EV_RX:
-		case CPTS_EV_TX:
 			list_del_init(&event->list);
 			list_add_tail(&event->list, &cpts->events);
 			break;
@@ -224,6 +280,24 @@ static int cpts_ptp_enable(struct ptp_clock_info *ptp,
 	return -EOPNOTSUPP;
 }
 
+static long cpts_overflow_check(struct ptp_clock_info *ptp)
+{
+	struct cpts *cpts = container_of(ptp, struct cpts, info);
+	unsigned long delay = cpts->ov_check_period;
+	struct timespec64 ts;
+	unsigned long flags;
+
+	spin_lock_irqsave(&cpts->lock, flags);
+	ts = ns_to_timespec64(timecounter_read(&cpts->tc));
+
+	if (!skb_queue_empty(&cpts->txq))
+		delay = CPTS_SKB_TX_WORK_TIMEOUT;
+	spin_unlock_irqrestore(&cpts->lock, flags);
+
+	pr_debug("cpts overflow check at %lld.%09lu\n", ts.tv_sec, ts.tv_nsec);
+	return (long)delay;
+}
+
 static struct ptp_clock_info cpts_info = {
 	.owner		= THIS_MODULE,
 	.name		= "CTPS timer",
@@ -236,18 +310,9 @@ static struct ptp_clock_info cpts_info = {
 	.gettime64	= cpts_ptp_gettime,
 	.settime64	= cpts_ptp_settime,
 	.enable		= cpts_ptp_enable,
+	.do_aux_work	= cpts_overflow_check,
 };
 
-static void cpts_overflow_check(struct work_struct *work)
-{
-	struct timespec64 ts;
-	struct cpts *cpts = container_of(work, struct cpts, overflow_work.work);
-
-	cpts_ptp_gettime(&cpts->info, &ts);
-	pr_debug("cpts overflow check at %lld.%09lu\n", ts.tv_sec, ts.tv_nsec);
-	schedule_delayed_work(&cpts->overflow_work, cpts->ov_check_period);
-}
-
 static int cpts_match(struct sk_buff *skb, unsigned int ptp_class,
 		      u16 ts_seqid, u8 ts_msgtype)
 {
@@ -299,7 +364,7 @@ static u64 cpts_find_ts(struct cpts *cpts, struct sk_buff *skb, int ev_type)
 		return 0;
 
 	spin_lock_irqsave(&cpts->lock, flags);
-	cpts_fifo_read(cpts, CPTS_EV_PUSH);
+	cpts_fifo_read(cpts, -1);
 	list_for_each_safe(this, next, &cpts->events) {
 		event = list_entry(this, struct cpts_event, list);
 		if (event_expired(event)) {
@@ -317,6 +382,19 @@ static u64 cpts_find_ts(struct cpts *cpts, struct sk_buff *skb, int ev_type)
 			break;
 		}
 	}
+
+	if (ev_type == CPTS_EV_TX && !ns) {
+		struct cpts_skb_cb_data *skb_cb =
+				(struct cpts_skb_cb_data *)skb->cb;
+		/* Not found, add frame to queue for processing later.
+		 * The periodic FIFO check will handle this.
+		 */
+		skb_get(skb);
+		/* get the timestamp for timeouts */
+		skb_cb->tmo = jiffies + msecs_to_jiffies(100);
+		__skb_queue_tail(&cpts->txq, skb);
+		ptp_schedule_worker(cpts->clock, 0);
+	}
 	spin_unlock_irqrestore(&cpts->lock, flags);
 
 	return ns;
@@ -358,6 +436,7 @@ int cpts_register(struct cpts *cpts)
 {
 	int err, i;
 
+	skb_queue_head_init(&cpts->txq);
 	INIT_LIST_HEAD(&cpts->events);
 	INIT_LIST_HEAD(&cpts->pool);
 	for (i = 0; i < CPTS_MAX_EVENTS; i++)
@@ -378,7 +457,7 @@ int cpts_register(struct cpts *cpts)
 	}
 	cpts->phc_index = ptp_clock_index(cpts->clock);
 
-	schedule_delayed_work(&cpts->overflow_work, cpts->ov_check_period);
+	ptp_schedule_worker(cpts->clock, cpts->ov_check_period);
 	return 0;
 
 err_ptp:
@@ -392,14 +471,15 @@ void cpts_unregister(struct cpts *cpts)
 	if (WARN_ON(!cpts->clock))
 		return;
 
-	cancel_delayed_work_sync(&cpts->overflow_work);
-
 	ptp_clock_unregister(cpts->clock);
 	cpts->clock = NULL;
 
 	cpts_write32(cpts, 0, int_enable);
 	cpts_write32(cpts, 0, control);
 
+	/* Drop all packet */
+	skb_queue_purge(&cpts->txq);
+
 	clk_disable(cpts->refclk);
 }
 EXPORT_SYMBOL_GPL(cpts_unregister);
@@ -476,7 +556,6 @@ struct cpts *cpts_create(struct device *dev, void __iomem *regs,
 	cpts->dev = dev;
 	cpts->reg = (struct cpsw_cpts __iomem *)regs;
 	spin_lock_init(&cpts->lock);
-	INIT_DELAYED_WORK(&cpts->overflow_work, cpts_overflow_check);
 
 	ret = cpts_of_parse(cpts, node);
 	if (ret)
diff --git a/drivers/net/ethernet/ti/cpts.h b/drivers/net/ethernet/ti/cpts.h
index 01ea82ba9cdc..73d73faf0f38 100644
--- a/drivers/net/ethernet/ti/cpts.h
+++ b/drivers/net/ethernet/ti/cpts.h
@@ -119,13 +119,13 @@ struct cpts {
 	u32 cc_mult; /* for the nominal frequency */
 	struct cyclecounter cc;
 	struct timecounter tc;
-	struct delayed_work overflow_work;
 	int phc_index;
 	struct clk *refclk;
 	struct list_head events;
 	struct list_head pool;
 	struct cpts_event pool_data[CPTS_MAX_EVENTS];
 	unsigned long ov_check_period;
+	struct sk_buff_head txq;
 };
 
 void cpts_rx_timestamp(struct cpts *cpts, struct sk_buff *skb);
diff --git a/drivers/net/ethernet/toshiba/tc35815.c b/drivers/net/ethernet/toshiba/tc35815.c
index d9db8a06afd2..cce9c9ed46aa 100644
--- a/drivers/net/ethernet/toshiba/tc35815.c
+++ b/drivers/net/ethernet/toshiba/tc35815.c
@@ -1338,7 +1338,7 @@ static int tc35815_send_packet(struct sk_buff *skb, struct net_device *dev)
 static void tc35815_fatal_error_interrupt(struct net_device *dev, u32 status)
 {
 	static int count;
-	printk(KERN_WARNING "%s: Fatal Error Intterrupt (%#x):",
+	printk(KERN_WARNING "%s: Fatal Error Interrupt (%#x):",
 	       dev->name, status);
 	if (status & Int_IntPCI)
 		printk(" IntPCI");
diff --git a/drivers/net/geneve.c b/drivers/net/geneve.c
index de8156c6b292..2bbda71818ad 100644
--- a/drivers/net/geneve.c
+++ b/drivers/net/geneve.c
@@ -1091,7 +1091,7 @@ static int geneve_validate(struct nlattr *tb[], struct nlattr *data[],
 	if (data[IFLA_GENEVE_ID]) {
 		__u32 vni =  nla_get_u32(data[IFLA_GENEVE_ID]);
 
-		if (vni >= GENEVE_VID_MASK)
+		if (vni >= GENEVE_N_VID)
 			return -ERANGE;
 	}
 
diff --git a/drivers/net/gtp.c b/drivers/net/gtp.c
index 1542e837fdfa..f38e32a7ec9c 100644
--- a/drivers/net/gtp.c
+++ b/drivers/net/gtp.c
@@ -364,7 +364,7 @@ static int gtp_dev_init(struct net_device *dev)
 
 	gtp->dev = dev;
 
-	dev->tstats = alloc_percpu(struct pcpu_sw_netstats);
+	dev->tstats = netdev_alloc_pcpu_stats(struct pcpu_sw_netstats);
 	if (!dev->tstats)
 		return -ENOMEM;
 
diff --git a/drivers/net/hyperv/hyperv_net.h b/drivers/net/hyperv/hyperv_net.h
index d6c25580f8dd..12cc64bfcff8 100644
--- a/drivers/net/hyperv/hyperv_net.h
+++ b/drivers/net/hyperv/hyperv_net.h
@@ -765,7 +765,8 @@ struct netvsc_device {
 	u32 max_chn;
 	u32 num_chn;
 
-	refcount_t sc_offered;
+	atomic_t open_chn;
+	wait_queue_head_t subchan_open;
 
 	struct rndis_device *extension;
 
diff --git a/drivers/net/hyperv/netvsc.c b/drivers/net/hyperv/netvsc.c
index 0a9167dd72fb..d18c3326a1f7 100644
--- a/drivers/net/hyperv/netvsc.c
+++ b/drivers/net/hyperv/netvsc.c
@@ -78,6 +78,7 @@ static struct netvsc_device *alloc_net_device(void)
 	net_device->max_pkt = RNDIS_MAX_PKT_DEFAULT;
 	net_device->pkt_align = RNDIS_PKT_ALIGN_DEFAULT;
 	init_completion(&net_device->channel_init_wait);
+	init_waitqueue_head(&net_device->subchan_open);
 
 	return net_device;
 }
@@ -1302,6 +1303,8 @@ int netvsc_device_add(struct hv_device *device,
 		struct netvsc_channel *nvchan = &net_device->chan_table[i];
 
 		nvchan->channel = device->channel;
+		u64_stats_init(&nvchan->tx_stats.syncp);
+		u64_stats_init(&nvchan->rx_stats.syncp);
 	}
 
 	/* Enable NAPI handler before init callbacks */
diff --git a/drivers/net/hyperv/netvsc_drv.c b/drivers/net/hyperv/netvsc_drv.c
index 63c98bbbc596..0d78727f1a14 100644
--- a/drivers/net/hyperv/netvsc_drv.c
+++ b/drivers/net/hyperv/netvsc_drv.c
@@ -315,14 +315,34 @@ static u32 init_page_array(void *hdr, u32 len, struct sk_buff *skb,
 	return slots_used;
 }
 
-/* Estimate number of page buffers neede to transmit
- * Need at most 2 for RNDIS header plus skb body and fragments.
- */
-static unsigned int netvsc_get_slots(const struct sk_buff *skb)
+static int count_skb_frag_slots(struct sk_buff *skb)
+{
+	int i, frags = skb_shinfo(skb)->nr_frags;
+	int pages = 0;
+
+	for (i = 0; i < frags; i++) {
+		skb_frag_t *frag = skb_shinfo(skb)->frags + i;
+		unsigned long size = skb_frag_size(frag);
+		unsigned long offset = frag->page_offset;
+
+		/* Skip unused frames from start of page */
+		offset &= ~PAGE_MASK;
+		pages += PFN_UP(offset + size);
+	}
+	return pages;
+}
+
+static int netvsc_get_slots(struct sk_buff *skb)
 {
-	return PFN_UP(offset_in_page(skb->data) + skb_headlen(skb))
-		+ skb_shinfo(skb)->nr_frags
-		+ 2;
+	char *data = skb->data;
+	unsigned int offset = offset_in_page(data);
+	unsigned int len = skb_headlen(skb);
+	int slots;
+	int frag_slots;
+
+	slots = DIV_ROUND_UP(offset + len, PAGE_SIZE);
+	frag_slots = count_skb_frag_slots(skb);
+	return slots + frag_slots;
 }
 
 static u32 net_checksum_info(struct sk_buff *skb)
@@ -360,18 +380,21 @@ static int netvsc_start_xmit(struct sk_buff *skb, struct net_device *net)
 	struct hv_page_buffer page_buf[MAX_PAGE_BUFFER_COUNT];
 	struct hv_page_buffer *pb = page_buf;
 
-	/* We can only transmit MAX_PAGE_BUFFER_COUNT number
+	/* We will atmost need two pages to describe the rndis
+	 * header. We can only transmit MAX_PAGE_BUFFER_COUNT number
 	 * of pages in a single packet. If skb is scattered around
 	 * more pages we try linearizing it.
 	 */
-	num_data_pgs = netvsc_get_slots(skb);
+
+	num_data_pgs = netvsc_get_slots(skb) + 2;
+
 	if (unlikely(num_data_pgs > MAX_PAGE_BUFFER_COUNT)) {
 		++net_device_ctx->eth_stats.tx_scattered;
 
 		if (skb_linearize(skb))
 			goto no_memory;
 
-		num_data_pgs = netvsc_get_slots(skb);
+		num_data_pgs = netvsc_get_slots(skb) + 2;
 		if (num_data_pgs > MAX_PAGE_BUFFER_COUNT) {
 			++net_device_ctx->eth_stats.tx_too_big;
 			goto drop;
diff --git a/drivers/net/hyperv/rndis_filter.c b/drivers/net/hyperv/rndis_filter.c
index 85c00e1c52b6..d6308ffda53e 100644
--- a/drivers/net/hyperv/rndis_filter.c
+++ b/drivers/net/hyperv/rndis_filter.c
@@ -1048,8 +1048,8 @@ static void netvsc_sc_open(struct vmbus_channel *new_sc)
 	else
 		netif_napi_del(&nvchan->napi);
 
-	if (refcount_dec_and_test(&nvscdev->sc_offered))
-		complete(&nvscdev->channel_init_wait);
+	atomic_inc(&nvscdev->open_chn);
+	wake_up(&nvscdev->subchan_open);
 }
 
 int rndis_filter_device_add(struct hv_device *dev,
@@ -1090,8 +1090,6 @@ int rndis_filter_device_add(struct hv_device *dev,
 	net_device->max_chn = 1;
 	net_device->num_chn = 1;
 
-	refcount_set(&net_device->sc_offered, 0);
-
 	net_device->extension = rndis_device;
 	rndis_device->ndev = net;
 
@@ -1221,11 +1219,11 @@ int rndis_filter_device_add(struct hv_device *dev,
 		rndis_device->ind_table[i] = ethtool_rxfh_indir_default(i,
 							net_device->num_chn);
 
+	atomic_set(&net_device->open_chn, 1);
 	num_rss_qs = net_device->num_chn - 1;
 	if (num_rss_qs == 0)
 		return 0;
 
-	refcount_set(&net_device->sc_offered, num_rss_qs);
 	vmbus_set_sc_create_callback(dev->channel, netvsc_sc_open);
 
 	init_packet = &net_device->channel_init_pkt;
@@ -1242,15 +1240,19 @@ int rndis_filter_device_add(struct hv_device *dev,
 	if (ret)
 		goto out;
 
+	wait_for_completion(&net_device->channel_init_wait);
 	if (init_packet->msg.v5_msg.subchn_comp.status != NVSP_STAT_SUCCESS) {
 		ret = -ENODEV;
 		goto out;
 	}
-	wait_for_completion(&net_device->channel_init_wait);
 
 	net_device->num_chn = 1 +
 		init_packet->msg.v5_msg.subchn_comp.num_subchannels;
 
+	/* wait for all sub channels to open */
+	wait_event(net_device->subchan_open,
+		   atomic_read(&net_device->open_chn) == net_device->num_chn);
+
 	/* ignore failues from setting rss parameters, still have channels */
 	rndis_filter_set_rss_param(rndis_device, netvsc_hash_key,
 				   net_device->num_chn);
diff --git a/drivers/net/ipvlan/ipvlan_main.c b/drivers/net/ipvlan/ipvlan_main.c
index f37e3c1fd4e7..8dab74a81303 100644
--- a/drivers/net/ipvlan/ipvlan_main.c
+++ b/drivers/net/ipvlan/ipvlan_main.c
@@ -192,7 +192,7 @@ static int ipvlan_init(struct net_device *dev)
 
 	netdev_lockdep_set_classes(dev);
 
-	ipvlan->pcpu_stats = alloc_percpu(struct ipvl_pcpu_stats);
+	ipvlan->pcpu_stats = netdev_alloc_pcpu_stats(struct ipvl_pcpu_stats);
 	if (!ipvlan->pcpu_stats)
 		return -ENOMEM;
 
diff --git a/drivers/net/irda/mcs7780.c b/drivers/net/irda/mcs7780.c
index 6f6ed75b63c9..765de3bedb88 100644
--- a/drivers/net/irda/mcs7780.c
+++ b/drivers/net/irda/mcs7780.c
@@ -141,9 +141,19 @@ static int mcs_set_reg(struct mcs_cb *mcs, __u16 reg, __u16 val)
 static int mcs_get_reg(struct mcs_cb *mcs, __u16 reg, __u16 * val)
 {
 	struct usb_device *dev = mcs->usbdev;
-	int ret = usb_control_msg(dev, usb_rcvctrlpipe(dev, 0), MCS_RDREQ,
-				  MCS_RD_RTYPE, 0, reg, val, 2,
-				  msecs_to_jiffies(MCS_CTRL_TIMEOUT));
+	void *dmabuf;
+	int ret;
+
+	dmabuf = kmalloc(sizeof(__u16), GFP_KERNEL);
+	if (!dmabuf)
+		return -ENOMEM;
+
+	ret = usb_control_msg(dev, usb_rcvctrlpipe(dev, 0), MCS_RDREQ,
+			      MCS_RD_RTYPE, 0, reg, dmabuf, 2,
+			      msecs_to_jiffies(MCS_CTRL_TIMEOUT));
+
+	memcpy(val, dmabuf, sizeof(__u16));
+	kfree(dmabuf);
 
 	return ret;
 }
diff --git a/drivers/net/ntb_netdev.c b/drivers/net/ntb_netdev.c
index 4daf3d0926a8..0250aa9ae2cb 100644
--- a/drivers/net/ntb_netdev.c
+++ b/drivers/net/ntb_netdev.c
@@ -418,6 +418,8 @@ static int ntb_netdev_probe(struct device *client_dev)
 	if (!ndev)
 		return -ENOMEM;
 
+	SET_NETDEV_DEV(ndev, client_dev);
+
 	dev = netdev_priv(ndev);
 	dev->ndev = ndev;
 	dev->pdev = pdev;
diff --git a/drivers/net/phy/Kconfig b/drivers/net/phy/Kconfig
index 2dda72004a7d..928fd892f167 100644
--- a/drivers/net/phy/Kconfig
+++ b/drivers/net/phy/Kconfig
@@ -7,7 +7,16 @@ menuconfig MDIO_DEVICE
 	help
 	   MDIO devices and driver infrastructure code.
 
-if MDIO_DEVICE
+config MDIO_BUS
+	tristate
+	default m if PHYLIB=m
+	default MDIO_DEVICE
+	help
+	  This internal symbol is used for link time dependencies and it
+	  reflects whether the mdio_bus/mdio_device code is built as a
+	  loadable module or built-in.
+
+if MDIO_BUS
 
 config MDIO_BCM_IPROC
 	tristate "Broadcom iProc MDIO bus controller"
@@ -28,7 +37,6 @@ config MDIO_BCM_UNIMAC
 
 config MDIO_BITBANG
 	tristate "Bitbanged MDIO buses"
-	depends on !(MDIO_DEVICE=y && PHYLIB=m)
 	help
 	  This module implements the MDIO bus protocol in software,
 	  for use by low level drivers that export the ability to
@@ -127,7 +135,6 @@ config MDIO_THUNDER
 	tristate "ThunderX SOCs MDIO buses"
 	depends on 64BIT
 	depends on PCI
-	depends on !(MDIO_DEVICE=y && PHYLIB=m)
 	select MDIO_CAVIUM
 	help
 	  This driver supports the MDIO interfaces found on Cavium
diff --git a/drivers/net/phy/mdio-mux.c b/drivers/net/phy/mdio-mux.c
index 00755b6a42cf..c608e1dfaf09 100644
--- a/drivers/net/phy/mdio-mux.c
+++ b/drivers/net/phy/mdio-mux.c
@@ -135,8 +135,8 @@ int mdio_mux_init(struct device *dev,
 	for_each_available_child_of_node(dev->of_node, child_bus_node) {
 		int v;
 
-		v = of_mdio_parse_addr(dev, child_bus_node);
-		if (v < 0) {
+		r = of_property_read_u32(child_bus_node, "reg", &v);
+		if (r) {
 			dev_err(dev,
 				"Error: Failed to find reg for child %s\n",
 				of_node_full_name(child_bus_node));
diff --git a/drivers/net/phy/phy.c b/drivers/net/phy/phy.c
index d0626bf5c540..5068c582d502 100644
--- a/drivers/net/phy/phy.c
+++ b/drivers/net/phy/phy.c
@@ -749,6 +749,9 @@ void phy_stop_machine(struct phy_device *phydev)
 	if (phydev->state > PHY_UP && phydev->state != PHY_HALTED)
 		phydev->state = PHY_UP;
 	mutex_unlock(&phydev->lock);
+
+	/* Now we can run the state machine synchronously */
+	phy_state_machine(&phydev->state_queue.work);
 }
 
 /**
diff --git a/drivers/net/ppp/ppp_generic.c b/drivers/net/ppp/ppp_generic.c
index 13028833bee3..a404552555d4 100644
--- a/drivers/net/ppp/ppp_generic.c
+++ b/drivers/net/ppp/ppp_generic.c
@@ -120,6 +120,7 @@ struct ppp {
 	int		n_channels;	/* how many channels are attached 54 */
 	spinlock_t	rlock;		/* lock for receive side 58 */
 	spinlock_t	wlock;		/* lock for transmit side 5c */
+	int		*xmit_recursion __percpu; /* xmit recursion detect */
 	int		mru;		/* max receive unit 60 */
 	unsigned int	flags;		/* control bits 64 */
 	unsigned int	xstate;		/* transmit state bits 68 */
@@ -1025,6 +1026,7 @@ static int ppp_dev_configure(struct net *src_net, struct net_device *dev,
 	struct ppp *ppp = netdev_priv(dev);
 	int indx;
 	int err;
+	int cpu;
 
 	ppp->dev = dev;
 	ppp->ppp_net = src_net;
@@ -1039,6 +1041,15 @@ static int ppp_dev_configure(struct net *src_net, struct net_device *dev,
 	INIT_LIST_HEAD(&ppp->channels);
 	spin_lock_init(&ppp->rlock);
 	spin_lock_init(&ppp->wlock);
+
+	ppp->xmit_recursion = alloc_percpu(int);
+	if (!ppp->xmit_recursion) {
+		err = -ENOMEM;
+		goto err1;
+	}
+	for_each_possible_cpu(cpu)
+		(*per_cpu_ptr(ppp->xmit_recursion, cpu)) = 0;
+
 #ifdef CONFIG_PPP_MULTILINK
 	ppp->minseq = -1;
 	skb_queue_head_init(&ppp->mrq);
@@ -1050,11 +1061,15 @@ static int ppp_dev_configure(struct net *src_net, struct net_device *dev,
 
 	err = ppp_unit_register(ppp, conf->unit, conf->ifname_is_set);
 	if (err < 0)
-		return err;
+		goto err2;
 
 	conf->file->private_data = &ppp->file;
 
 	return 0;
+err2:
+	free_percpu(ppp->xmit_recursion);
+err1:
+	return err;
 }
 
 static const struct nla_policy ppp_nl_policy[IFLA_PPP_MAX + 1] = {
@@ -1400,18 +1415,16 @@ static void __ppp_xmit_process(struct ppp *ppp)
 	ppp_xmit_unlock(ppp);
 }
 
-static DEFINE_PER_CPU(int, ppp_xmit_recursion);
-
 static void ppp_xmit_process(struct ppp *ppp)
 {
 	local_bh_disable();
 
-	if (unlikely(__this_cpu_read(ppp_xmit_recursion)))
+	if (unlikely(*this_cpu_ptr(ppp->xmit_recursion)))
 		goto err;
 
-	__this_cpu_inc(ppp_xmit_recursion);
+	(*this_cpu_ptr(ppp->xmit_recursion))++;
 	__ppp_xmit_process(ppp);
-	__this_cpu_dec(ppp_xmit_recursion);
+	(*this_cpu_ptr(ppp->xmit_recursion))--;
 
 	local_bh_enable();
 
@@ -1902,23 +1915,23 @@ static void __ppp_channel_push(struct channel *pch)
 	spin_unlock(&pch->downl);
 	/* see if there is anything from the attached unit to be sent */
 	if (skb_queue_empty(&pch->file.xq)) {
-		read_lock(&pch->upl);
 		ppp = pch->ppp;
 		if (ppp)
 			__ppp_xmit_process(ppp);
-		read_unlock(&pch->upl);
 	}
 }
 
 static void ppp_channel_push(struct channel *pch)
 {
-	local_bh_disable();
-
-	__this_cpu_inc(ppp_xmit_recursion);
-	__ppp_channel_push(pch);
-	__this_cpu_dec(ppp_xmit_recursion);
-
-	local_bh_enable();
+	read_lock_bh(&pch->upl);
+	if (pch->ppp) {
+		(*this_cpu_ptr(pch->ppp->xmit_recursion))++;
+		__ppp_channel_push(pch);
+		(*this_cpu_ptr(pch->ppp->xmit_recursion))--;
+	} else {
+		__ppp_channel_push(pch);
+	}
+	read_unlock_bh(&pch->upl);
 }
 
 /*
@@ -3057,6 +3070,7 @@ static void ppp_destroy_interface(struct ppp *ppp)
 #endif /* CONFIG_PPP_FILTER */
 
 	kfree_skb(ppp->xmit_pending);
+	free_percpu(ppp->xmit_recursion);
 
 	free_netdev(ppp->dev);
 }
diff --git a/drivers/net/ppp/pptp.c b/drivers/net/ppp/pptp.c
index eac499c58aa7..6dde9a0cfe76 100644
--- a/drivers/net/ppp/pptp.c
+++ b/drivers/net/ppp/pptp.c
@@ -131,7 +131,6 @@ static void del_chan(struct pppox_sock *sock)
 	clear_bit(sock->proto.pptp.src_addr.call_id, callid_bitmap);
 	RCU_INIT_POINTER(callid_sock[sock->proto.pptp.src_addr.call_id], NULL);
 	spin_unlock(&chan_lock);
-	synchronize_rcu();
 }
 
 static int pptp_xmit(struct ppp_channel *chan, struct sk_buff *skb)
@@ -520,6 +519,7 @@ static int pptp_release(struct socket *sock)
 
 	po = pppox_sk(sk);
 	del_chan(po);
+	synchronize_rcu();
 
 	pppox_unbind_sock(sk);
 	sk->sk_state = PPPOX_DEAD;
diff --git a/drivers/net/tap.c b/drivers/net/tap.c
index 9af3239d6ad5..3570c7576993 100644
--- a/drivers/net/tap.c
+++ b/drivers/net/tap.c
@@ -106,7 +106,7 @@ struct major_info {
 	struct rcu_head rcu;
 	dev_t major;
 	struct idr minor_idr;
-	struct mutex minor_lock;
+	spinlock_t minor_lock;
 	const char *device_name;
 	struct list_head next;
 };
@@ -416,15 +416,15 @@ int tap_get_minor(dev_t major, struct tap_dev *tap)
 		goto unlock;
 	}
 
-	mutex_lock(&tap_major->minor_lock);
-	retval = idr_alloc(&tap_major->minor_idr, tap, 1, TAP_NUM_DEVS, GFP_KERNEL);
+	spin_lock(&tap_major->minor_lock);
+	retval = idr_alloc(&tap_major->minor_idr, tap, 1, TAP_NUM_DEVS, GFP_ATOMIC);
 	if (retval >= 0) {
 		tap->minor = retval;
 	} else if (retval == -ENOSPC) {
 		netdev_err(tap->dev, "Too many tap devices\n");
 		retval = -EINVAL;
 	}
-	mutex_unlock(&tap_major->minor_lock);
+	spin_unlock(&tap_major->minor_lock);
 
 unlock:
 	rcu_read_unlock();
@@ -442,12 +442,12 @@ void tap_free_minor(dev_t major, struct tap_dev *tap)
 		goto unlock;
 	}
 
-	mutex_lock(&tap_major->minor_lock);
+	spin_lock(&tap_major->minor_lock);
 	if (tap->minor) {
 		idr_remove(&tap_major->minor_idr, tap->minor);
 		tap->minor = 0;
 	}
-	mutex_unlock(&tap_major->minor_lock);
+	spin_unlock(&tap_major->minor_lock);
 
 unlock:
 	rcu_read_unlock();
@@ -467,13 +467,13 @@ static struct tap_dev *dev_get_by_tap_file(int major, int minor)
 		goto unlock;
 	}
 
-	mutex_lock(&tap_major->minor_lock);
+	spin_lock(&tap_major->minor_lock);
 	tap = idr_find(&tap_major->minor_idr, minor);
 	if (tap) {
 		dev = tap->dev;
 		dev_hold(dev);
 	}
-	mutex_unlock(&tap_major->minor_lock);
+	spin_unlock(&tap_major->minor_lock);
 
 unlock:
 	rcu_read_unlock();
@@ -1244,7 +1244,7 @@ static int tap_list_add(dev_t major, const char *device_name)
 	tap_major->major = MAJOR(major);
 
 	idr_init(&tap_major->minor_idr);
-	mutex_init(&tap_major->minor_lock);
+	spin_lock_init(&tap_major->minor_lock);
 
 	tap_major->device_name = device_name;
 
diff --git a/drivers/net/team/team.c b/drivers/net/team/team.c
index 464570409796..ae53e899259f 100644
--- a/drivers/net/team/team.c
+++ b/drivers/net/team/team.c
@@ -60,11 +60,11 @@ static struct team_port *team_port_get_rtnl(const struct net_device *dev)
 static int __set_port_dev_addr(struct net_device *port_dev,
 			       const unsigned char *dev_addr)
 {
-	struct sockaddr addr;
+	struct sockaddr_storage addr;
 
-	memcpy(addr.sa_data, dev_addr, port_dev->addr_len);
-	addr.sa_family = port_dev->type;
-	return dev_set_mac_address(port_dev, &addr);
+	memcpy(addr.__data, dev_addr, port_dev->addr_len);
+	addr.ss_family = port_dev->type;
+	return dev_set_mac_address(port_dev, (struct sockaddr *)&addr);
 }
 
 static int team_port_set_orig_dev_addr(struct team_port *port)
diff --git a/drivers/net/tun.c b/drivers/net/tun.c
index 3d4c24572ecd..0a2c0a42283f 100644
--- a/drivers/net/tun.c
+++ b/drivers/net/tun.c
@@ -1879,6 +1879,9 @@ static int tun_set_iff(struct net *net, struct file *file, struct ifreq *ifr)
 
 err_detach:
 	tun_detach_all(dev);
+	/* register_netdevice() already called tun_free_netdev() */
+	goto err_free_dev;
+
 err_free_flow:
 	tun_flow_uninit(tun);
 	security_tun_dev_free_security(tun->security);
@@ -2598,8 +2601,16 @@ static int __init tun_init(void)
 		goto err_misc;
 	}
 
-	register_netdevice_notifier(&tun_notifier_block);
+	ret = register_netdevice_notifier(&tun_notifier_block);
+	if (ret) {
+		pr_err("Can't register netdevice notifier\n");
+		goto err_notifier;
+	}
+
 	return  0;
+
+err_notifier:
+	misc_deregister(&tun_miscdev);
 err_misc:
 	rtnl_link_unregister(&tun_link_ops);
 err_linkops:
diff --git a/drivers/net/usb/asix.h b/drivers/net/usb/asix.h
index d1092421aaa7..9a4171b90947 100644
--- a/drivers/net/usb/asix.h
+++ b/drivers/net/usb/asix.h
@@ -209,6 +209,7 @@ void asix_write_cmd_async(struct usbnet *dev, u8 cmd, u16 value,
 int asix_rx_fixup_internal(struct usbnet *dev, struct sk_buff *skb,
 			   struct asix_rx_fixup_info *rx);
 int asix_rx_fixup_common(struct usbnet *dev, struct sk_buff *skb);
+void asix_rx_fixup_common_free(struct asix_common_private *dp);
 
 struct sk_buff *asix_tx_fixup(struct usbnet *dev, struct sk_buff *skb,
 			      gfp_t flags);
diff --git a/drivers/net/usb/asix_common.c b/drivers/net/usb/asix_common.c
index 7847436c441e..522d2900cd1d 100644
--- a/drivers/net/usb/asix_common.c
+++ b/drivers/net/usb/asix_common.c
@@ -75,6 +75,27 @@ void asix_write_cmd_async(struct usbnet *dev, u8 cmd, u16 value, u16 index,
 			       value, index, data, size);
 }
 
+static void reset_asix_rx_fixup_info(struct asix_rx_fixup_info *rx)
+{
+	/* Reset the variables that have a lifetime outside of
+	 * asix_rx_fixup_internal() so that future processing starts from a
+	 * known set of initial conditions.
+	 */
+
+	if (rx->ax_skb) {
+		/* Discard any incomplete Ethernet frame in the netdev buffer */
+		kfree_skb(rx->ax_skb);
+		rx->ax_skb = NULL;
+	}
+
+	/* Assume the Data header 32-bit word is at the start of the current
+	 * or next URB socket buffer so reset all the state variables.
+	 */
+	rx->remaining = 0;
+	rx->split_head = false;
+	rx->header = 0;
+}
+
 int asix_rx_fixup_internal(struct usbnet *dev, struct sk_buff *skb,
 			   struct asix_rx_fixup_info *rx)
 {
@@ -99,15 +120,7 @@ int asix_rx_fixup_internal(struct usbnet *dev, struct sk_buff *skb,
 		if (size != ((~rx->header >> 16) & 0x7ff)) {
 			netdev_err(dev->net, "asix_rx_fixup() Data Header synchronisation was lost, remaining %d\n",
 				   rx->remaining);
-			if (rx->ax_skb) {
-				kfree_skb(rx->ax_skb);
-				rx->ax_skb = NULL;
-				/* Discard the incomplete netdev Ethernet frame
-				 * and assume the Data header is at the start of
-				 * the current URB socket buffer.
-				 */
-			}
-			rx->remaining = 0;
+			reset_asix_rx_fixup_info(rx);
 		}
 	}
 
@@ -139,11 +152,13 @@ int asix_rx_fixup_internal(struct usbnet *dev, struct sk_buff *skb,
 			if (size != ((~rx->header >> 16) & 0x7ff)) {
 				netdev_err(dev->net, "asix_rx_fixup() Bad Header Length 0x%x, offset %d\n",
 					   rx->header, offset);
+				reset_asix_rx_fixup_info(rx);
 				return 0;
 			}
 			if (size > dev->net->mtu + ETH_HLEN + VLAN_HLEN) {
 				netdev_dbg(dev->net, "asix_rx_fixup() Bad RX Length %d\n",
 					   size);
+				reset_asix_rx_fixup_info(rx);
 				return 0;
 			}
 
@@ -168,8 +183,10 @@ int asix_rx_fixup_internal(struct usbnet *dev, struct sk_buff *skb,
 		if (rx->ax_skb) {
 			skb_put_data(rx->ax_skb, skb->data + offset,
 				     copy_length);
-			if (!rx->remaining)
+			if (!rx->remaining) {
 				usbnet_skb_return(dev, rx->ax_skb);
+				rx->ax_skb = NULL;
+			}
 		}
 
 		offset += (copy_length + 1) & 0xfffe;
@@ -178,6 +195,7 @@ int asix_rx_fixup_internal(struct usbnet *dev, struct sk_buff *skb,
 	if (skb->len != offset) {
 		netdev_err(dev->net, "asix_rx_fixup() Bad SKB Length %d, %d\n",
 			   skb->len, offset);
+		reset_asix_rx_fixup_info(rx);
 		return 0;
 	}
 
@@ -192,6 +210,21 @@ int asix_rx_fixup_common(struct usbnet *dev, struct sk_buff *skb)
 	return asix_rx_fixup_internal(dev, skb, rx);
 }
 
+void asix_rx_fixup_common_free(struct asix_common_private *dp)
+{
+	struct asix_rx_fixup_info *rx;
+
+	if (!dp)
+		return;
+
+	rx = &dp->rx_fixup_info;
+
+	if (rx->ax_skb) {
+		kfree_skb(rx->ax_skb);
+		rx->ax_skb = NULL;
+	}
+}
+
 struct sk_buff *asix_tx_fixup(struct usbnet *dev, struct sk_buff *skb,
 			      gfp_t flags)
 {
diff --git a/drivers/net/usb/asix_devices.c b/drivers/net/usb/asix_devices.c
index a3aa0a27dfe5..b2ff88e69a81 100644
--- a/drivers/net/usb/asix_devices.c
+++ b/drivers/net/usb/asix_devices.c
@@ -764,6 +764,7 @@ static int ax88772_bind(struct usbnet *dev, struct usb_interface *intf)
 
 static void ax88772_unbind(struct usbnet *dev, struct usb_interface *intf)
 {
+	asix_rx_fixup_common_free(dev->driver_priv);
 	kfree(dev->driver_priv);
 }
 
diff --git a/drivers/net/usb/cdc_ncm.c b/drivers/net/usb/cdc_ncm.c
index d103a1d4fb36..8f572b9f3625 100644
--- a/drivers/net/usb/cdc_ncm.c
+++ b/drivers/net/usb/cdc_ncm.c
@@ -768,8 +768,10 @@ int cdc_ncm_bind_common(struct usbnet *dev, struct usb_interface *intf, u8 data_
 	u8 *buf;
 	int len;
 	int temp;
+	int err;
 	u8 iface_no;
 	struct usb_cdc_parsed_header hdr;
+	u16 curr_ntb_format;
 
 	ctx = kzalloc(sizeof(*ctx), GFP_KERNEL);
 	if (!ctx)
@@ -874,6 +876,32 @@ int cdc_ncm_bind_common(struct usbnet *dev, struct usb_interface *intf, u8 data_
 		goto error2;
 	}
 
+	/*
+	 * Some Huawei devices have been observed to come out of reset in NDP32 mode.
+	 * Let's check if this is the case, and set the device to NDP16 mode again if
+	 * needed.
+	*/
+	if (ctx->drvflags & CDC_NCM_FLAG_RESET_NTB16) {
+		err = usbnet_read_cmd(dev, USB_CDC_GET_NTB_FORMAT,
+				      USB_TYPE_CLASS | USB_DIR_IN | USB_RECIP_INTERFACE,
+				      0, iface_no, &curr_ntb_format, 2);
+		if (err < 0) {
+			goto error2;
+		}
+
+		if (curr_ntb_format == USB_CDC_NCM_NTB32_FORMAT) {
+			dev_info(&intf->dev, "resetting NTB format to 16-bit");
+			err = usbnet_write_cmd(dev, USB_CDC_SET_NTB_FORMAT,
+					       USB_TYPE_CLASS | USB_DIR_OUT
+					       | USB_RECIP_INTERFACE,
+					       USB_CDC_NCM_NTB16_FORMAT,
+					       iface_no, NULL, 0);
+
+			if (err < 0)
+				goto error2;
+		}
+	}
+
 	cdc_ncm_find_endpoints(dev, ctx->data);
 	cdc_ncm_find_endpoints(dev, ctx->control);
 	if (!dev->in || !dev->out || !dev->status) {
diff --git a/drivers/net/usb/huawei_cdc_ncm.c b/drivers/net/usb/huawei_cdc_ncm.c
index 2680a65cd5e4..63f28908afda 100644
--- a/drivers/net/usb/huawei_cdc_ncm.c
+++ b/drivers/net/usb/huawei_cdc_ncm.c
@@ -80,6 +80,12 @@ static int huawei_cdc_ncm_bind(struct usbnet *usbnet_dev,
 	 * be at the end of the frame.
 	 */
 	drvflags |= CDC_NCM_FLAG_NDP_TO_END;
+
+	/* Additionally, it has been reported that some Huawei E3372H devices, with
+	 * firmware version 21.318.01.00.541, come out of reset in NTB32 format mode, hence
+	 * needing to be set to the NTB16 one again.
+	 */
+	drvflags |= CDC_NCM_FLAG_RESET_NTB16;
 	ret = cdc_ncm_bind_common(usbnet_dev, intf, 1, drvflags);
 	if (ret)
 		goto err;
diff --git a/drivers/net/usb/lan78xx.c b/drivers/net/usb/lan78xx.c
index 5833f7e2a127..b99a7fb09f8e 100644
--- a/drivers/net/usb/lan78xx.c
+++ b/drivers/net/usb/lan78xx.c
@@ -2367,9 +2367,6 @@ static int lan78xx_reset(struct lan78xx_net *dev)
 	/* Init LTM */
 	lan78xx_init_ltm(dev);
 
-	dev->net->hard_header_len += TX_OVERHEAD;
-	dev->hard_mtu = dev->net->mtu + dev->net->hard_header_len;
-
 	if (dev->udev->speed == USB_SPEED_SUPER) {
 		buf = DEFAULT_BURST_CAP_SIZE / SS_USB_PKT_SIZE;
 		dev->rx_urb_size = DEFAULT_BURST_CAP_SIZE;
@@ -2855,16 +2852,19 @@ static int lan78xx_bind(struct lan78xx_net *dev, struct usb_interface *intf)
 		return ret;
 	}
 
+	dev->net->hard_header_len += TX_OVERHEAD;
+	dev->hard_mtu = dev->net->mtu + dev->net->hard_header_len;
+
 	/* Init all registers */
 	ret = lan78xx_reset(dev);
 
-	lan78xx_mdio_init(dev);
+	ret = lan78xx_mdio_init(dev);
 
 	dev->net->flags |= IFF_MULTICAST;
 
 	pdata->wol = WAKE_MAGIC;
 
-	return 0;
+	return ret;
 }
 
 static void lan78xx_unbind(struct lan78xx_net *dev, struct usb_interface *intf)
@@ -3525,11 +3525,11 @@ static int lan78xx_probe(struct usb_interface *intf,
 	udev = interface_to_usbdev(intf);
 	udev = usb_get_dev(udev);
 
-	ret = -ENOMEM;
 	netdev = alloc_etherdev(sizeof(struct lan78xx_net));
 	if (!netdev) {
-			dev_err(&intf->dev, "Error: OOM\n");
-			goto out1;
+		dev_err(&intf->dev, "Error: OOM\n");
+		ret = -ENOMEM;
+		goto out1;
 	}
 
 	/* netdev_printk() needs this */
@@ -3610,7 +3610,7 @@ static int lan78xx_probe(struct usb_interface *intf,
 	ret = register_netdev(netdev);
 	if (ret != 0) {
 		netif_err(dev, probe, netdev, "couldn't register the device\n");
-		goto out2;
+		goto out3;
 	}
 
 	usb_set_intfdata(intf, dev);
diff --git a/drivers/net/usb/qmi_wwan.c b/drivers/net/usb/qmi_wwan.c
index 5894e3c9468f..8c3733608271 100644
--- a/drivers/net/usb/qmi_wwan.c
+++ b/drivers/net/usb/qmi_wwan.c
@@ -1175,6 +1175,7 @@ static const struct usb_device_id products[] = {
 	{QMI_FIXED_INTF(0x19d2, 0x1428, 2)},	/* Telewell TW-LTE 4G v2 */
 	{QMI_FIXED_INTF(0x19d2, 0x2002, 4)},	/* ZTE (Vodafone) K3765-Z */
 	{QMI_FIXED_INTF(0x2001, 0x7e19, 4)},	/* D-Link DWM-221 B1 */
+	{QMI_FIXED_INTF(0x2001, 0x7e35, 4)},	/* D-Link DWM-222 */
 	{QMI_FIXED_INTF(0x0f3d, 0x68a2, 8)},    /* Sierra Wireless MC7700 */
 	{QMI_FIXED_INTF(0x114f, 0x68a2, 8)},    /* Sierra Wireless MC7750 */
 	{QMI_FIXED_INTF(0x1199, 0x68a2, 8)},	/* Sierra Wireless MC7710 in QMI mode */
@@ -1340,10 +1341,14 @@ static int qmi_wwan_probe(struct usb_interface *intf,
 static void qmi_wwan_disconnect(struct usb_interface *intf)
 {
 	struct usbnet *dev = usb_get_intfdata(intf);
-	struct qmi_wwan_state *info = (void *)&dev->data;
+	struct qmi_wwan_state *info;
 	struct list_head *iter;
 	struct net_device *ldev;
 
+	/* called twice if separate control and data intf */
+	if (!dev)
+		return;
+	info = (void *)&dev->data;
 	if (info->flags & QMI_WWAN_FLAG_MUX) {
 		if (!rtnl_trylock()) {
 			restart_syscall();
diff --git a/drivers/net/usb/smsc95xx.c b/drivers/net/usb/smsc95xx.c
index 2dfca96a63b6..340c13484e5c 100644
--- a/drivers/net/usb/smsc95xx.c
+++ b/drivers/net/usb/smsc95xx.c
@@ -898,6 +898,7 @@ static const struct ethtool_ops smsc95xx_ethtool_ops = {
 	.set_wol	= smsc95xx_ethtool_set_wol,
 	.get_link_ksettings	= smsc95xx_get_link_ksettings,
 	.set_link_ksettings	= smsc95xx_set_link_ksettings,
+	.get_ts_info	= ethtool_op_get_ts_info,
 };
 
 static int smsc95xx_ioctl(struct net_device *netdev, struct ifreq *rq, int cmd)
diff --git a/drivers/net/virtio_net.c b/drivers/net/virtio_net.c
index 99a26a9efec1..98f17b05c68b 100644
--- a/drivers/net/virtio_net.c
+++ b/drivers/net/virtio_net.c
@@ -889,21 +889,20 @@ static int add_recvbuf_mergeable(struct virtnet_info *vi,
 
 	buf = (char *)page_address(alloc_frag->page) + alloc_frag->offset;
 	buf += headroom; /* advance address leaving hole at front of pkt */
-	ctx = (void *)(unsigned long)len;
 	get_page(alloc_frag->page);
 	alloc_frag->offset += len + headroom;
 	hole = alloc_frag->size - alloc_frag->offset;
 	if (hole < len + headroom) {
 		/* To avoid internal fragmentation, if there is very likely not
 		 * enough space for another buffer, add the remaining space to
-		 * the current buffer. This extra space is not included in
-		 * the truesize stored in ctx.
+		 * the current buffer.
 		 */
 		len += hole;
 		alloc_frag->offset += hole;
 	}
 
 	sg_init_one(rq->sg, buf, len);
+	ctx = (void *)(unsigned long)len;
 	err = virtqueue_add_inbuf_ctx(rq->vq, rq->sg, 1, buf, ctx, gfp);
 	if (err < 0)
 		put_page(virt_to_head_page(buf));
@@ -2743,9 +2742,9 @@ module_init(virtio_net_driver_init);
 
 static __exit void virtio_net_driver_exit(void)
 {
+	unregister_virtio_driver(&virtio_net_driver);
 	cpuhp_remove_multi_state(CPUHP_VIRT_NET_DEAD);
 	cpuhp_remove_multi_state(virtionet_online);
-	unregister_virtio_driver(&virtio_net_driver);
 }
 module_exit(virtio_net_driver_exit);
 
diff --git a/drivers/net/vmxnet3/vmxnet3_int.h b/drivers/net/vmxnet3/vmxnet3_int.h
index ba1c9f93592b..9c51b8be0038 100644
--- a/drivers/net/vmxnet3/vmxnet3_int.h
+++ b/drivers/net/vmxnet3/vmxnet3_int.h
@@ -311,7 +311,7 @@ struct vmxnet3_intr {
 	u8  num_intrs;			/* # of intr vectors */
 	u8  event_intr_idx;		/* idx of the intr vector for event */
 	u8  mod_levels[VMXNET3_LINUX_MAX_MSIX_VECT]; /* moderation level */
-	char	event_msi_vector_name[IFNAMSIZ+11];
+	char	event_msi_vector_name[IFNAMSIZ+17];
 #ifdef CONFIG_PCI_MSI
 	struct msix_entry msix_entries[VMXNET3_LINUX_MAX_MSIX_VECT];
 #endif
diff --git a/drivers/net/vxlan.c b/drivers/net/vxlan.c
index 96aa7e6cf214..e17baac70f43 100644
--- a/drivers/net/vxlan.c
+++ b/drivers/net/vxlan.c
@@ -623,6 +623,7 @@ static struct sk_buff **vxlan_gro_receive(struct sock *sk,
 
 out:
 	skb_gro_remcsum_cleanup(skb, &grc);
+	skb->remcsum_offload = 0;
 	NAPI_GRO_CB(skb)->flush |= flush;
 
 	return pp;
diff --git a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/cfg80211.c b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/cfg80211.c
index dcde596c9eb9..7e689c86d565 100644
--- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/cfg80211.c
+++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/cfg80211.c
@@ -4934,6 +4934,11 @@ brcmf_cfg80211_mgmt_tx(struct wiphy *wiphy, struct wireless_dev *wdev,
 		cfg80211_mgmt_tx_status(wdev, *cookie, buf, len, true,
 					GFP_KERNEL);
 	} else if (ieee80211_is_action(mgmt->frame_control)) {
+		if (len > BRCMF_FIL_ACTION_FRAME_SIZE + DOT11_MGMT_HDR_LEN) {
+			brcmf_err("invalid action frame length\n");
+			err = -EINVAL;
+			goto exit;
+		}
 		af_params = kzalloc(sizeof(*af_params), GFP_KERNEL);
 		if (af_params == NULL) {
 			brcmf_err("unable to allocate frame\n");
diff --git a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/core.c b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/core.c
index 2153e8062b4c..5cc3a07dda9e 100644
--- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/core.c
+++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/core.c
@@ -214,7 +214,7 @@ static netdev_tx_t brcmf_netdev_start_xmit(struct sk_buff *skb,
 
 	/* Make sure there's enough writeable headroom */
 	if (skb_headroom(skb) < drvr->hdrlen || skb_header_cloned(skb)) {
-		head_delta = drvr->hdrlen - skb_headroom(skb);
+		head_delta = max_t(int, drvr->hdrlen - skb_headroom(skb), 0);
 
 		brcmf_dbg(INFO, "%s: insufficient headroom (%d)\n",
 			  brcmf_ifname(ifp), head_delta);
diff --git a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/feature.c b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/feature.c
index d21258d277ce..f1b60740e020 100644
--- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/feature.c
+++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/feature.c
@@ -159,8 +159,10 @@ void brcmf_feat_attach(struct brcmf_pub *drvr)
 
 	brcmf_feat_firmware_capabilities(ifp);
 	memset(&gscan_cfg, 0, sizeof(gscan_cfg));
-	brcmf_feat_iovar_data_set(ifp, BRCMF_FEAT_GSCAN, "pfn_gscan_cfg",
-				  &gscan_cfg, sizeof(gscan_cfg));
+	if (drvr->bus_if->chip != BRCM_CC_43430_CHIP_ID)
+		brcmf_feat_iovar_data_set(ifp, BRCMF_FEAT_GSCAN,
+					  "pfn_gscan_cfg",
+					  &gscan_cfg, sizeof(gscan_cfg));
 	brcmf_feat_iovar_int_get(ifp, BRCMF_FEAT_PNO, "pfn");
 	if (drvr->bus_if->wowl_supported)
 		brcmf_feat_iovar_int_get(ifp, BRCMF_FEAT_WOWL, "wowl");
diff --git a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/sdio.c b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/sdio.c
index fbcbb4325936..f3556122c6ac 100644
--- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/sdio.c
+++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/sdio.c
@@ -2053,12 +2053,13 @@ static int brcmf_sdio_txpkt_hdalign(struct brcmf_sdio *bus, struct sk_buff *pkt)
 				atomic_inc(&stats->pktcow_failed);
 				return -ENOMEM;
 			}
+			head_pad = 0;
 		}
 		skb_push(pkt, head_pad);
 		dat_buf = (u8 *)(pkt->data);
 	}
 	memset(dat_buf, 0, head_pad + bus->tx_hdrlen);
-	return 0;
+	return head_pad;
 }
 
 /**
@@ -4174,11 +4175,6 @@ struct brcmf_sdio *brcmf_sdio_probe(struct brcmf_sdio_dev *sdiodev)
 		goto fail;
 	}
 
-	/* allocate scatter-gather table. sg support
-	 * will be disabled upon allocation failure.
-	 */
-	brcmf_sdiod_sgtable_alloc(bus->sdiodev);
-
 	/* Query the F2 block size, set roundup accordingly */
 	bus->blocksize = bus->sdiodev->func[2]->cur_blksize;
 	bus->roundup = min(max_roundup, bus->blocksize);
diff --git a/drivers/net/wireless/intel/iwlwifi/cfg/9000.c b/drivers/net/wireless/intel/iwlwifi/cfg/9000.c
index b4ecd1fe1374..97208ce19f92 100644
--- a/drivers/net/wireless/intel/iwlwifi/cfg/9000.c
+++ b/drivers/net/wireless/intel/iwlwifi/cfg/9000.c
@@ -154,7 +154,7 @@ static const struct iwl_tt_params iwl9000_tt_params = {
 const struct iwl_cfg iwl9160_2ac_cfg = {
 	.name = "Intel(R) Dual Band Wireless AC 9160",
 	.fw_name_pre = IWL9260A_FW_PRE,
-	.fw_name_pre_next_step = IWL9260B_FW_PRE,
+	.fw_name_pre_b_or_c_step = IWL9260B_FW_PRE,
 	IWL_DEVICE_9000,
 	.ht_params = &iwl9000_ht_params,
 	.nvm_ver = IWL9000_NVM_VERSION,
@@ -165,7 +165,7 @@ const struct iwl_cfg iwl9160_2ac_cfg = {
 const struct iwl_cfg iwl9260_2ac_cfg = {
 	.name = "Intel(R) Dual Band Wireless AC 9260",
 	.fw_name_pre = IWL9260A_FW_PRE,
-	.fw_name_pre_next_step = IWL9260B_FW_PRE,
+	.fw_name_pre_b_or_c_step = IWL9260B_FW_PRE,
 	IWL_DEVICE_9000,
 	.ht_params = &iwl9000_ht_params,
 	.nvm_ver = IWL9000_NVM_VERSION,
@@ -176,7 +176,7 @@ const struct iwl_cfg iwl9260_2ac_cfg = {
 const struct iwl_cfg iwl9270_2ac_cfg = {
 	.name = "Intel(R) Dual Band Wireless AC 9270",
 	.fw_name_pre = IWL9260A_FW_PRE,
-	.fw_name_pre_next_step = IWL9260B_FW_PRE,
+	.fw_name_pre_b_or_c_step = IWL9260B_FW_PRE,
 	IWL_DEVICE_9000,
 	.ht_params = &iwl9000_ht_params,
 	.nvm_ver = IWL9000_NVM_VERSION,
@@ -186,8 +186,8 @@ const struct iwl_cfg iwl9270_2ac_cfg = {
 
 const struct iwl_cfg iwl9460_2ac_cfg = {
 	.name = "Intel(R) Dual Band Wireless AC 9460",
-	.fw_name_pre = IWL9000_FW_PRE,
-	.fw_name_pre_rf_next_step = IWL9000RFB_FW_PRE,
+	.fw_name_pre = IWL9260A_FW_PRE,
+	.fw_name_pre_b_or_c_step = IWL9260B_FW_PRE,
 	IWL_DEVICE_9000,
 	.ht_params = &iwl9000_ht_params,
 	.nvm_ver = IWL9000_NVM_VERSION,
@@ -198,8 +198,8 @@ const struct iwl_cfg iwl9460_2ac_cfg = {
 
 const struct iwl_cfg iwl9560_2ac_cfg = {
 	.name = "Intel(R) Dual Band Wireless AC 9560",
-	.fw_name_pre = IWL9000_FW_PRE,
-	.fw_name_pre_rf_next_step = IWL9000RFB_FW_PRE,
+	.fw_name_pre = IWL9260A_FW_PRE,
+	.fw_name_pre_b_or_c_step = IWL9260B_FW_PRE,
 	IWL_DEVICE_9000,
 	.ht_params = &iwl9000_ht_params,
 	.nvm_ver = IWL9000_NVM_VERSION,
diff --git a/drivers/net/wireless/intel/iwlwifi/dvm/tx.c b/drivers/net/wireless/intel/iwlwifi/dvm/tx.c
index adaa2f0097cc..fb40ddfced99 100644
--- a/drivers/net/wireless/intel/iwlwifi/dvm/tx.c
+++ b/drivers/net/wireless/intel/iwlwifi/dvm/tx.c
@@ -1189,11 +1189,11 @@ void iwlagn_rx_reply_tx(struct iwl_priv *priv, struct iwl_rx_cmd_buffer *rxb)
 				next_reclaimed;
 			IWL_DEBUG_TX_REPLY(priv, "Next reclaimed packet:%d\n",
 						  next_reclaimed);
+			iwlagn_check_ratid_empty(priv, sta_id, tid);
 		}
 
 		iwl_trans_reclaim(priv->trans, txq_id, ssn, &skbs);
 
-		iwlagn_check_ratid_empty(priv, sta_id, tid);
 		freed = 0;
 
 		/* process frames */
diff --git a/drivers/net/wireless/intel/iwlwifi/fw/file.h b/drivers/net/wireless/intel/iwlwifi/fw/file.h
index 0fa8c473f1e2..c73a6438ce8f 100644
--- a/drivers/net/wireless/intel/iwlwifi/fw/file.h
+++ b/drivers/net/wireless/intel/iwlwifi/fw/file.h
@@ -328,6 +328,7 @@ typedef unsigned int __bitwise iwl_ucode_tlv_capa_t;
  * @IWL_UCODE_TLV_CAPA_TX_POWER_ACK: reduced TX power API has larger
  *	command size (command version 4) that supports toggling ACK TX
  *	power reduction.
+ * @IWL_UCODE_TLV_CAPA_MLME_OFFLOAD: supports MLME offload
  *
  * @NUM_IWL_UCODE_TLV_CAPA: number of bits used
  */
@@ -373,6 +374,7 @@ enum iwl_ucode_tlv_capa {
 	IWL_UCODE_TLV_CAPA_EXTEND_SHARED_MEM_CFG	= (__force iwl_ucode_tlv_capa_t)80,
 	IWL_UCODE_TLV_CAPA_LQM_SUPPORT			= (__force iwl_ucode_tlv_capa_t)81,
 	IWL_UCODE_TLV_CAPA_TX_POWER_ACK			= (__force iwl_ucode_tlv_capa_t)84,
+	IWL_UCODE_TLV_CAPA_MLME_OFFLOAD			= (__force iwl_ucode_tlv_capa_t)96,
 
 	NUM_IWL_UCODE_TLV_CAPA
 #ifdef __CHECKER__
diff --git a/drivers/net/wireless/intel/iwlwifi/iwl-config.h b/drivers/net/wireless/intel/iwlwifi/iwl-config.h
index c52623cb7c2a..d19c74827fbb 100644
--- a/drivers/net/wireless/intel/iwlwifi/iwl-config.h
+++ b/drivers/net/wireless/intel/iwlwifi/iwl-config.h
@@ -276,10 +276,10 @@ struct iwl_pwr_tx_backoff {
  * @fw_name_pre: Firmware filename prefix. The api version and extension
  *	(.ucode) will be added to filename before loading from disk. The
  *	filename is constructed as fw_name_pre<api>.ucode.
- * @fw_name_pre_next_step: same as @fw_name_pre, only for next step
+ * @fw_name_pre_b_or_c_step: same as @fw_name_pre, only for b or c steps
  *	(if supported)
- * @fw_name_pre_rf_next_step: same as @fw_name_pre_next_step, only for rf next
- *	step. Supported only in integrated solutions.
+ * @fw_name_pre_rf_next_step: same as @fw_name_pre_b_or_c_step, only for rf
+ *	next step. Supported only in integrated solutions.
  * @ucode_api_max: Highest version of uCode API supported by driver.
  * @ucode_api_min: Lowest version of uCode API supported by driver.
  * @max_inst_size: The maximal length of the fw inst section
@@ -330,7 +330,7 @@ struct iwl_cfg {
 	/* params specific to an individual device within a device family */
 	const char *name;
 	const char *fw_name_pre;
-	const char *fw_name_pre_next_step;
+	const char *fw_name_pre_b_or_c_step;
 	const char *fw_name_pre_rf_next_step;
 	/* params not likely to change within a device family */
 	const struct iwl_base_params *base_params;
diff --git a/drivers/net/wireless/intel/iwlwifi/iwl-devtrace.h b/drivers/net/wireless/intel/iwlwifi/iwl-devtrace.h
index 545d14b0bc92..f5c1127253cb 100644
--- a/drivers/net/wireless/intel/iwlwifi/iwl-devtrace.h
+++ b/drivers/net/wireless/intel/iwlwifi/iwl-devtrace.h
@@ -55,8 +55,8 @@ static inline bool iwl_trace_data(struct sk_buff *skb)
 	/* also account for the RFC 1042 header, of course */
 	offs += 6;
 
-	return skb->len > offs + 2 &&
-	       *(__be16 *)(skb->data + offs) == cpu_to_be16(ETH_P_PAE);
+	return skb->len <= offs + 2 ||
+		*(__be16 *)(skb->data + offs) != cpu_to_be16(ETH_P_PAE);
 }
 
 static inline size_t iwl_rx_trace_len(const struct iwl_trans *trans,
diff --git a/drivers/net/wireless/intel/iwlwifi/iwl-drv.c b/drivers/net/wireless/intel/iwlwifi/iwl-drv.c
index 6fdb5921e17f..4e0f86fe0a6f 100644
--- a/drivers/net/wireless/intel/iwlwifi/iwl-drv.c
+++ b/drivers/net/wireless/intel/iwlwifi/iwl-drv.c
@@ -216,8 +216,9 @@ static int iwl_request_firmware(struct iwl_drv *drv, bool first)
 	const char *fw_pre_name;
 
 	if (drv->trans->cfg->device_family == IWL_DEVICE_FAMILY_9000 &&
-	    CSR_HW_REV_STEP(drv->trans->hw_rev) == SILICON_B_STEP)
-		fw_pre_name = cfg->fw_name_pre_next_step;
+	    (CSR_HW_REV_STEP(drv->trans->hw_rev) == SILICON_B_STEP ||
+	     CSR_HW_REV_STEP(drv->trans->hw_rev) == SILICON_C_STEP))
+		fw_pre_name = cfg->fw_name_pre_b_or_c_step;
 	else if (drv->trans->cfg->integrated &&
 		 CSR_HW_RFID_STEP(drv->trans->hw_rf_id) == SILICON_B_STEP &&
 		 cfg->fw_name_pre_rf_next_step)
diff --git a/drivers/net/wireless/intel/iwlwifi/iwl-nvm-parse.c b/drivers/net/wireless/intel/iwlwifi/iwl-nvm-parse.c
index 5c08f4d40f6a..3ee6767392b6 100644
--- a/drivers/net/wireless/intel/iwlwifi/iwl-nvm-parse.c
+++ b/drivers/net/wireless/intel/iwlwifi/iwl-nvm-parse.c
@@ -785,7 +785,8 @@ iwl_parse_nvm_mcc_info(struct device *dev, const struct iwl_cfg *cfg,
 		       int num_of_ch, __le32 *channels, u16 fw_mcc)
 {
 	int ch_idx;
-	u16 ch_flags, prev_ch_flags = 0;
+	u16 ch_flags;
+	u32 reg_rule_flags, prev_reg_rule_flags = 0;
 	const u8 *nvm_chan = cfg->ext_nvm ?
 			     iwl_ext_nvm_channels : iwl_nvm_channels;
 	struct ieee80211_regdomain *regd;
@@ -834,8 +835,11 @@ iwl_parse_nvm_mcc_info(struct device *dev, const struct iwl_cfg *cfg,
 			continue;
 		}
 
+		reg_rule_flags = iwl_nvm_get_regdom_bw_flags(nvm_chan, ch_idx,
+							     ch_flags, cfg);
+
 		/* we can't continue the same rule */
-		if (ch_idx == 0 || prev_ch_flags != ch_flags ||
+		if (ch_idx == 0 || prev_reg_rule_flags != reg_rule_flags ||
 		    center_freq - prev_center_freq > 20) {
 			valid_rules++;
 			new_rule = true;
@@ -854,18 +858,17 @@ iwl_parse_nvm_mcc_info(struct device *dev, const struct iwl_cfg *cfg,
 		rule->power_rule.max_eirp =
 			DBM_TO_MBM(IWL_DEFAULT_MAX_TX_POWER);
 
-		rule->flags = iwl_nvm_get_regdom_bw_flags(nvm_chan, ch_idx,
-							  ch_flags, cfg);
+		rule->flags = reg_rule_flags;
 
 		/* rely on auto-calculation to merge BW of contiguous chans */
 		rule->flags |= NL80211_RRF_AUTO_BW;
 		rule->freq_range.max_bandwidth_khz = 0;
 
-		prev_ch_flags = ch_flags;
 		prev_center_freq = center_freq;
+		prev_reg_rule_flags = reg_rule_flags;
 
 		IWL_DEBUG_DEV(dev, IWL_DL_LAR,
-			      "Ch. %d [%sGHz] %s%s%s%s%s%s%s%s%s(0x%02x): Ad-Hoc %ssupported\n",
+			      "Ch. %d [%sGHz] %s%s%s%s%s%s%s%s%s(0x%02x) reg_flags 0x%x: %s\n",
 			      center_freq,
 			      band == NL80211_BAND_5GHZ ? "5.2" : "2.4",
 			      CHECK_AND_PRINT_I(VALID),
@@ -877,10 +880,10 @@ iwl_parse_nvm_mcc_info(struct device *dev, const struct iwl_cfg *cfg,
 			      CHECK_AND_PRINT_I(160MHZ),
 			      CHECK_AND_PRINT_I(INDOOR_ONLY),
 			      CHECK_AND_PRINT_I(GO_CONCURRENT),
-			      ch_flags,
+			      ch_flags, reg_rule_flags,
 			      ((ch_flags & NVM_CHANNEL_ACTIVE) &&
 			       !(ch_flags & NVM_CHANNEL_RADAR))
-					 ? "" : "not ");
+					 ? "Ad-Hoc" : "");
 	}
 
 	regd->n_reg_rules = valid_rules;
diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/fw.c b/drivers/net/wireless/intel/iwlwifi/mvm/fw.c
index 79e7a7a285dc..82863e9273eb 100644
--- a/drivers/net/wireless/intel/iwlwifi/mvm/fw.c
+++ b/drivers/net/wireless/intel/iwlwifi/mvm/fw.c
@@ -1275,8 +1275,10 @@ static int iwl_mvm_sar_get_wgds_table(struct iwl_mvm *mvm)
 
 			entry = &wifi_pkg->package.elements[idx++];
 			if ((entry->type != ACPI_TYPE_INTEGER) ||
-			    (entry->integer.value > U8_MAX))
-				return -EINVAL;
+			    (entry->integer.value > U8_MAX)) {
+				ret = -EINVAL;
+				goto out_free;
+			}
 
 			mvm->geo_profiles[i].values[j] = entry->integer.value;
 		}
diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/mac80211.c b/drivers/net/wireless/intel/iwlwifi/mvm/mac80211.c
index bcde1ba0f1c8..ce901be5fba8 100644
--- a/drivers/net/wireless/intel/iwlwifi/mvm/mac80211.c
+++ b/drivers/net/wireless/intel/iwlwifi/mvm/mac80211.c
@@ -1084,7 +1084,13 @@ int __iwl_mvm_mac_start(struct iwl_mvm *mvm)
 
 	lockdep_assert_held(&mvm->mutex);
 
-	if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) {
+	if (test_bit(IWL_MVM_STATUS_HW_RESTART_REQUESTED, &mvm->status)) {
+		/*
+		 * Now convert the HW_RESTART_REQUESTED flag to IN_HW_RESTART
+		 * so later code will - from now on - see that we're doing it.
+		 */
+		set_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status);
+		clear_bit(IWL_MVM_STATUS_HW_RESTART_REQUESTED, &mvm->status);
 		/* Clean up some internal and mac80211 state on restart */
 		iwl_mvm_restart_cleanup(mvm);
 	} else {
@@ -2591,8 +2597,18 @@ static void iwl_mvm_purge_deferred_tx_frames(struct iwl_mvm *mvm,
 	spin_lock_bh(&mvm_sta->lock);
 	for (i = 0; i <= IWL_MAX_TID_COUNT; i++) {
 		tid_data = &mvm_sta->tid_data[i];
-		while ((skb = __skb_dequeue(&tid_data->deferred_tx_frames)))
+
+		while ((skb = __skb_dequeue(&tid_data->deferred_tx_frames))) {
+			struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
+
+			/*
+			 * The first deferred frame should've stopped the MAC
+			 * queues, so we should never get a second deferred
+			 * frame for the RA/TID.
+			 */
+			iwl_mvm_start_mac_queues(mvm, info->hw_queue);
 			ieee80211_free_txskb(mvm->hw, skb);
+		}
 	}
 	spin_unlock_bh(&mvm_sta->lock);
 }
diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/mvm.h b/drivers/net/wireless/intel/iwlwifi/mvm/mvm.h
index eaacfaf37206..ddd8719f27b8 100644
--- a/drivers/net/wireless/intel/iwlwifi/mvm/mvm.h
+++ b/drivers/net/wireless/intel/iwlwifi/mvm/mvm.h
@@ -1090,6 +1090,7 @@ struct iwl_mvm {
  * @IWL_MVM_STATUS_HW_RFKILL: HW RF-kill is asserted
  * @IWL_MVM_STATUS_HW_CTKILL: CT-kill is active
  * @IWL_MVM_STATUS_ROC_RUNNING: remain-on-channel is running
+ * @IWL_MVM_STATUS_HW_RESTART_REQUESTED: HW restart was requested
  * @IWL_MVM_STATUS_IN_HW_RESTART: HW restart is active
  * @IWL_MVM_STATUS_IN_D0I3: NIC is in D0i3
  * @IWL_MVM_STATUS_ROC_AUX_RUNNING: AUX remain-on-channel is running
@@ -1101,6 +1102,7 @@ enum iwl_mvm_status {
 	IWL_MVM_STATUS_HW_RFKILL,
 	IWL_MVM_STATUS_HW_CTKILL,
 	IWL_MVM_STATUS_ROC_RUNNING,
+	IWL_MVM_STATUS_HW_RESTART_REQUESTED,
 	IWL_MVM_STATUS_IN_HW_RESTART,
 	IWL_MVM_STATUS_IN_D0I3,
 	IWL_MVM_STATUS_ROC_AUX_RUNNING,
diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/ops.c b/drivers/net/wireless/intel/iwlwifi/mvm/ops.c
index 4d1188b8736a..9c175d5e9d67 100644
--- a/drivers/net/wireless/intel/iwlwifi/mvm/ops.c
+++ b/drivers/net/wireless/intel/iwlwifi/mvm/ops.c
@@ -1235,9 +1235,8 @@ void iwl_mvm_nic_restart(struct iwl_mvm *mvm, bool fw_error)
 	 */
 	if (!mvm->fw_restart && fw_error) {
 		iwl_mvm_fw_dbg_collect_desc(mvm, &iwl_mvm_dump_desc_assert,
-					    NULL);
-	} else if (test_and_set_bit(IWL_MVM_STATUS_IN_HW_RESTART,
-				    &mvm->status)) {
+					NULL);
+	} else if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) {
 		struct iwl_mvm_reprobe *reprobe;
 
 		IWL_ERR(mvm,
@@ -1268,6 +1267,7 @@ void iwl_mvm_nic_restart(struct iwl_mvm *mvm, bool fw_error)
 
 		if (fw_error && mvm->fw_restart > 0)
 			mvm->fw_restart--;
+		set_bit(IWL_MVM_STATUS_HW_RESTART_REQUESTED, &mvm->status);
 		ieee80211_restart_hw(mvm->hw);
 	}
 }
diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/rs.c b/drivers/net/wireless/intel/iwlwifi/mvm/rs.c
index 65beca3a457a..8999a1199d60 100644
--- a/drivers/net/wireless/intel/iwlwifi/mvm/rs.c
+++ b/drivers/net/wireless/intel/iwlwifi/mvm/rs.c
@@ -1291,7 +1291,7 @@ void iwl_mvm_rs_tx_status(struct iwl_mvm *mvm, struct ieee80211_sta *sta,
 	 * first index into rate scale table.
 	 */
 	if (info->flags & IEEE80211_TX_STAT_AMPDU) {
-		rs_collect_tpc_data(mvm, lq_sta, curr_tbl, lq_rate.index,
+		rs_collect_tpc_data(mvm, lq_sta, curr_tbl, tx_resp_rate.index,
 				    info->status.ampdu_len,
 				    info->status.ampdu_ack_len,
 				    reduced_txp);
@@ -1312,7 +1312,7 @@ void iwl_mvm_rs_tx_status(struct iwl_mvm *mvm, struct ieee80211_sta *sta,
 		if (info->status.ampdu_ack_len == 0)
 			info->status.ampdu_len = 1;
 
-		rs_collect_tlc_data(mvm, lq_sta, curr_tbl, lq_rate.index,
+		rs_collect_tlc_data(mvm, lq_sta, curr_tbl, tx_resp_rate.index,
 				    info->status.ampdu_len,
 				    info->status.ampdu_ack_len);
 
@@ -1348,11 +1348,11 @@ void iwl_mvm_rs_tx_status(struct iwl_mvm *mvm, struct ieee80211_sta *sta,
 				continue;
 
 			rs_collect_tpc_data(mvm, lq_sta, tmp_tbl,
-					    lq_rate.index, 1,
+					    tx_resp_rate.index, 1,
 					    i < retries ? 0 : legacy_success,
 					    reduced_txp);
 			rs_collect_tlc_data(mvm, lq_sta, tmp_tbl,
-					    lq_rate.index, 1,
+					    tx_resp_rate.index, 1,
 					    i < retries ? 0 : legacy_success);
 		}
 
diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/rxmq.c b/drivers/net/wireless/intel/iwlwifi/mvm/rxmq.c
index f3e608196369..71c8b800ffa9 100644
--- a/drivers/net/wireless/intel/iwlwifi/mvm/rxmq.c
+++ b/drivers/net/wireless/intel/iwlwifi/mvm/rxmq.c
@@ -636,9 +636,9 @@ static bool iwl_mvm_reorder(struct iwl_mvm *mvm,
 
 	baid_data = rcu_dereference(mvm->baid_map[baid]);
 	if (!baid_data) {
-		WARN(!(reorder & IWL_RX_MPDU_REORDER_BA_OLD_SN),
-		     "Received baid %d, but no data exists for this BAID\n",
-		     baid);
+		IWL_DEBUG_RX(mvm,
+			     "Got valid BAID but no baid allocated, bypass the re-ordering buffer. Baid %d reorder 0x%x\n",
+			      baid, reorder);
 		return false;
 	}
 
@@ -759,7 +759,9 @@ static void iwl_mvm_agg_rx_received(struct iwl_mvm *mvm,
 
 	data = rcu_dereference(mvm->baid_map[baid]);
 	if (!data) {
-		WARN_ON(!(reorder_data & IWL_RX_MPDU_REORDER_BA_OLD_SN));
+		IWL_DEBUG_RX(mvm,
+			     "Got valid BAID but no baid allocated, bypass the re-ordering buffer. Baid %d reorder 0x%x\n",
+			      baid, reorder_data);
 		goto out;
 	}
 
diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/sta.c b/drivers/net/wireless/intel/iwlwifi/mvm/sta.c
index 4df5f13fcdae..027ee5e72172 100644
--- a/drivers/net/wireless/intel/iwlwifi/mvm/sta.c
+++ b/drivers/net/wireless/intel/iwlwifi/mvm/sta.c
@@ -121,7 +121,8 @@ int iwl_mvm_sta_send_to_fw(struct iwl_mvm *mvm, struct ieee80211_sta *sta,
 		.mac_id_n_color = cpu_to_le32(mvm_sta->mac_id_n_color),
 		.add_modify = update ? 1 : 0,
 		.station_flags_msk = cpu_to_le32(STA_FLG_FAT_EN_MSK |
-						 STA_FLG_MIMO_EN_MSK),
+						 STA_FLG_MIMO_EN_MSK |
+						 STA_FLG_RTS_MIMO_PROT),
 		.tid_disable_tx = cpu_to_le16(mvm_sta->tid_disable_agg),
 	};
 	int ret;
@@ -277,9 +278,21 @@ static void iwl_mvm_rx_agg_session_expired(unsigned long data)
 
 	/* Timer expired */
 	sta = rcu_dereference(ba_data->mvm->fw_id_to_mac_id[ba_data->sta_id]);
+
+	/*
+	 * sta should be valid unless the following happens:
+	 * The firmware asserts which triggers a reconfig flow, but
+	 * the reconfig fails before we set the pointer to sta into
+	 * the fw_id_to_mac_id pointer table. Mac80211 can't stop
+	 * A-MDPU and hence the timer continues to run. Then, the
+	 * timer expires and sta is NULL.
+	 */
+	if (!sta)
+		goto unlock;
+
 	mvm_sta = iwl_mvm_sta_from_mac80211(sta);
-	ieee80211_stop_rx_ba_session_offl(mvm_sta->vif,
-					  sta->addr, ba_data->tid);
+	ieee80211_rx_ba_timer_expired(mvm_sta->vif,
+				      sta->addr, ba_data->tid);
 unlock:
 	rcu_read_unlock();
 }
@@ -2015,7 +2028,8 @@ int iwl_mvm_send_add_bcast_sta(struct iwl_mvm *mvm, struct ieee80211_vif *vif)
 						IWL_MAX_TID_COUNT,
 						wdg_timeout);
 
-		if (vif->type == NL80211_IFTYPE_AP)
+		if (vif->type == NL80211_IFTYPE_AP ||
+		    vif->type == NL80211_IFTYPE_ADHOC)
 			mvm->probe_queue = queue;
 		else if (vif->type == NL80211_IFTYPE_P2P_DEVICE)
 			mvm->p2p_dev_queue = queue;
diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/tx.c b/drivers/net/wireless/intel/iwlwifi/mvm/tx.c
index 60360ed73f26..5fcc9dd6be56 100644
--- a/drivers/net/wireless/intel/iwlwifi/mvm/tx.c
+++ b/drivers/net/wireless/intel/iwlwifi/mvm/tx.c
@@ -185,8 +185,14 @@ static u16 iwl_mvm_tx_csum(struct iwl_mvm *mvm, struct sk_buff *skb,
 	else
 		udp_hdr(skb)->check = 0;
 
-	/* mac header len should include IV, size is in words */
-	if (info->control.hw_key)
+	/*
+	 * mac header len should include IV, size is in words unless
+	 * the IV is added by the firmware like in WEP.
+	 * In new Tx API, the IV is always added by the firmware.
+	 */
+	if (!iwl_mvm_has_new_tx_api(mvm) && info->control.hw_key &&
+	    info->control.hw_key->cipher != WLAN_CIPHER_SUITE_WEP40 &&
+	    info->control.hw_key->cipher != WLAN_CIPHER_SUITE_WEP104)
 		mh_len += info->control.hw_key->iv_len;
 	mh_len /= 2;
 	offload_assist |= mh_len << TX_CMD_OFFLD_MH_SIZE;
@@ -1815,6 +1821,8 @@ void iwl_mvm_rx_ba_notif(struct iwl_mvm *mvm, struct iwl_rx_cmd_buffer *rxb)
 	struct iwl_mvm_tid_data *tid_data;
 	struct iwl_mvm_sta *mvmsta;
 
+	ba_info.flags = IEEE80211_TX_STAT_AMPDU;
+
 	if (iwl_mvm_has_new_tx_api(mvm)) {
 		struct iwl_mvm_compressed_ba_notif *ba_res =
 			(void *)pkt->data;
diff --git a/drivers/net/wireless/intel/iwlwifi/pcie/drv.c b/drivers/net/wireless/intel/iwlwifi/pcie/drv.c
index f16c1bb9bf94..84f4ba01e14f 100644
--- a/drivers/net/wireless/intel/iwlwifi/pcie/drv.c
+++ b/drivers/net/wireless/intel/iwlwifi/pcie/drv.c
@@ -510,9 +510,17 @@ static const struct pci_device_id iwl_hw_card_ids[] = {
 
 /* 9000 Series */
 	{IWL_PCI_DEVICE(0x271B, 0x0010, iwl9160_2ac_cfg)},
+	{IWL_PCI_DEVICE(0x271B, 0x0014, iwl9160_2ac_cfg)},
+	{IWL_PCI_DEVICE(0x271B, 0x0210, iwl9160_2ac_cfg)},
 	{IWL_PCI_DEVICE(0x2526, 0x0000, iwl9260_2ac_cfg)},
 	{IWL_PCI_DEVICE(0x2526, 0x0010, iwl9260_2ac_cfg)},
+	{IWL_PCI_DEVICE(0x2526, 0x0014, iwl9260_2ac_cfg)},
+	{IWL_PCI_DEVICE(0x2526, 0xA014, iwl9260_2ac_cfg)},
+	{IWL_PCI_DEVICE(0x2526, 0x4010, iwl9260_2ac_cfg)},
+	{IWL_PCI_DEVICE(0x2526, 0x0210, iwl9260_2ac_cfg)},
+	{IWL_PCI_DEVICE(0x2526, 0x0214, iwl9260_2ac_cfg)},
 	{IWL_PCI_DEVICE(0x2526, 0x1410, iwl9270_2ac_cfg)},
+	{IWL_PCI_DEVICE(0x2526, 0x1610, iwl9270_2ac_cfg)},
 	{IWL_PCI_DEVICE(0x9DF0, 0x0A10, iwl9460_2ac_cfg)},
 	{IWL_PCI_DEVICE(0x9DF0, 0x0010, iwl9460_2ac_cfg)},
 	{IWL_PCI_DEVICE(0x9DF0, 0x0210, iwl9460_2ac_cfg)},
@@ -527,10 +535,22 @@ static const struct pci_device_id iwl_hw_card_ids[] = {
 	{IWL_PCI_DEVICE(0x9DF0, 0x2A10, iwl9460_2ac_cfg)},
 	{IWL_PCI_DEVICE(0x30DC, 0x0060, iwl9460_2ac_cfg)},
 	{IWL_PCI_DEVICE(0x2526, 0x0060, iwl9460_2ac_cfg)},
+	{IWL_PCI_DEVICE(0x2526, 0x0260, iwl9460_2ac_cfg)},
+	{IWL_PCI_DEVICE(0x2526, 0x0064, iwl9460_2ac_cfg)},
+	{IWL_PCI_DEVICE(0x2526, 0x00A4, iwl9460_2ac_cfg)},
+	{IWL_PCI_DEVICE(0x2526, 0x40A4, iwl9460_2ac_cfg)},
+	{IWL_PCI_DEVICE(0x2526, 0x02A4, iwl9460_2ac_cfg)},
+	{IWL_PCI_DEVICE(0x2526, 0x00A0, iwl9460_2ac_cfg)},
+	{IWL_PCI_DEVICE(0x2526, 0x02A0, iwl9460_2ac_cfg)},
 	{IWL_PCI_DEVICE(0x9DF0, 0x0060, iwl9460_2ac_cfg)},
 	{IWL_PCI_DEVICE(0xA370, 0x0060, iwl9460_2ac_cfg)},
 	{IWL_PCI_DEVICE(0x31DC, 0x0060, iwl9460_2ac_cfg)},
 	{IWL_PCI_DEVICE(0x2526, 0x0030, iwl9560_2ac_cfg)},
+	{IWL_PCI_DEVICE(0x2526, 0x4030, iwl9560_2ac_cfg)},
+	{IWL_PCI_DEVICE(0x2526, 0x0230, iwl9560_2ac_cfg)},
+	{IWL_PCI_DEVICE(0x2526, 0x0234, iwl9560_2ac_cfg)},
+	{IWL_PCI_DEVICE(0x2526, 0x0238, iwl9560_2ac_cfg)},
+	{IWL_PCI_DEVICE(0x2526, 0x023C, iwl9560_2ac_cfg)},
 	{IWL_PCI_DEVICE(0x9DF0, 0x0030, iwl9560_2ac_cfg)},
 	{IWL_PCI_DEVICE(0xA370, 0x0030, iwl9560_2ac_cfg)},
 	{IWL_PCI_DEVICE(0x31DC, 0x0030, iwl9560_2ac_cfg)},
diff --git a/drivers/net/wireless/intel/iwlwifi/pcie/trans.c b/drivers/net/wireless/intel/iwlwifi/pcie/trans.c
index 92b3a55d0fbc..f95eec52508e 100644
--- a/drivers/net/wireless/intel/iwlwifi/pcie/trans.c
+++ b/drivers/net/wireless/intel/iwlwifi/pcie/trans.c
@@ -3150,7 +3150,8 @@ struct iwl_trans *iwl_trans_pcie_alloc(struct pci_dev *pdev,
 	init_waitqueue_head(&trans_pcie->d0i3_waitq);
 
 	if (trans_pcie->msix_enabled) {
-		if (iwl_pcie_init_msix_handler(pdev, trans_pcie))
+		ret = iwl_pcie_init_msix_handler(pdev, trans_pcie);
+		if (ret)
 			goto out_no_pci;
 	 } else {
 		ret = iwl_pcie_alloc_ict(trans);
diff --git a/drivers/net/wireless/intel/iwlwifi/pcie/tx.c b/drivers/net/wireless/intel/iwlwifi/pcie/tx.c
index de50418adae5..034bdb4a0b06 100644
--- a/drivers/net/wireless/intel/iwlwifi/pcie/tx.c
+++ b/drivers/net/wireless/intel/iwlwifi/pcie/tx.c
@@ -298,6 +298,9 @@ void iwl_pcie_txq_check_wrptrs(struct iwl_trans *trans)
 	for (i = 0; i < trans->cfg->base_params->num_of_queues; i++) {
 		struct iwl_txq *txq = trans_pcie->txq[i];
 
+		if (!test_bit(i, trans_pcie->queue_used))
+			continue;
+
 		spin_lock_bh(&txq->lock);
 		if (txq->need_update) {
 			iwl_pcie_txq_inc_wr_ptr(trans, txq);
diff --git a/drivers/net/wireless/ralink/rt2x00/rt2800lib.c b/drivers/net/wireless/ralink/rt2x00/rt2800lib.c
index 6e2e760d98b1..0b75def39c6c 100644
--- a/drivers/net/wireless/ralink/rt2x00/rt2800lib.c
+++ b/drivers/net/wireless/ralink/rt2x00/rt2800lib.c
@@ -5704,7 +5704,7 @@ static void rt2800_init_freq_calibration(struct rt2x00_dev *rt2x00dev)
 
 static void rt2800_init_bbp_5592_glrt(struct rt2x00_dev *rt2x00dev)
 {
-	const u8 glrt_table[] = {
+	static const u8 glrt_table[] = {
 		0xE0, 0x1F, 0X38, 0x32, 0x08, 0x28, 0x19, 0x0A, 0xFF, 0x00, /* 128 ~ 137 */
 		0x16, 0x10, 0x10, 0x0B, 0x36, 0x2C, 0x26, 0x24, 0x42, 0x36, /* 138 ~ 147 */
 		0x30, 0x2D, 0x4C, 0x46, 0x3D, 0x40, 0x3E, 0x42, 0x3D, 0x40, /* 148 ~ 157 */
diff --git a/drivers/net/wireless/realtek/rtlwifi/rtl8723be/hw.c b/drivers/net/wireless/realtek/rtlwifi/rtl8723be/hw.c
index 2a7ad5ffe997..cd5dc6dcb19f 100644
--- a/drivers/net/wireless/realtek/rtlwifi/rtl8723be/hw.c
+++ b/drivers/net/wireless/realtek/rtlwifi/rtl8723be/hw.c
@@ -846,9 +846,6 @@ static bool _rtl8723be_init_mac(struct ieee80211_hw *hw)
 		return false;
 	}
 
-	if (rtlpriv->cfg->ops->get_btc_status())
-		rtlpriv->btcoexist.btc_ops->btc_power_on_setting(rtlpriv);
-
 	bytetmp = rtl_read_byte(rtlpriv, REG_MULTI_FUNC_CTRL);
 	rtl_write_byte(rtlpriv, REG_MULTI_FUNC_CTRL, bytetmp | BIT(3));
 
diff --git a/drivers/net/wireless/realtek/rtlwifi/wifi.h b/drivers/net/wireless/realtek/rtlwifi/wifi.h
index fb1ebb01133f..70723e67b7d7 100644
--- a/drivers/net/wireless/realtek/rtlwifi/wifi.h
+++ b/drivers/net/wireless/realtek/rtlwifi/wifi.h
@@ -2547,7 +2547,6 @@ struct bt_coexist_info {
 struct rtl_btc_ops {
 	void (*btc_init_variables) (struct rtl_priv *rtlpriv);
 	void (*btc_init_hal_vars) (struct rtl_priv *rtlpriv);
-	void (*btc_power_on_setting)(struct rtl_priv *rtlpriv);
 	void (*btc_init_hw_config) (struct rtl_priv *rtlpriv);
 	void (*btc_ips_notify) (struct rtl_priv *rtlpriv, u8 type);
 	void (*btc_lps_notify)(struct rtl_priv *rtlpriv, u8 type);
diff --git a/drivers/ntb/hw/Kconfig b/drivers/ntb/hw/Kconfig
index 7116472b4625..a89243c9fdd3 100644
--- a/drivers/ntb/hw/Kconfig
+++ b/drivers/ntb/hw/Kconfig
@@ -1,2 +1,3 @@
 source "drivers/ntb/hw/amd/Kconfig"
+source "drivers/ntb/hw/idt/Kconfig"
 source "drivers/ntb/hw/intel/Kconfig"
diff --git a/drivers/ntb/hw/Makefile b/drivers/ntb/hw/Makefile
index 532e0859b4a1..87332c3905f0 100644
--- a/drivers/ntb/hw/Makefile
+++ b/drivers/ntb/hw/Makefile
@@ -1,2 +1,3 @@
 obj-$(CONFIG_NTB_AMD)	+= amd/
+obj-$(CONFIG_NTB_IDT)	+= idt/
 obj-$(CONFIG_NTB_INTEL)	+= intel/
diff --git a/drivers/ntb/hw/amd/ntb_hw_amd.c b/drivers/ntb/hw/amd/ntb_hw_amd.c
index 019a158e1128..f0788aae05c9 100644
--- a/drivers/ntb/hw/amd/ntb_hw_amd.c
+++ b/drivers/ntb/hw/amd/ntb_hw_amd.c
@@ -5,6 +5,7 @@
  *   GPL LICENSE SUMMARY
  *
  *   Copyright (C) 2016 Advanced Micro Devices, Inc. All Rights Reserved.
+ *   Copyright (C) 2016 T-Platforms. All Rights Reserved.
  *
  *   This program is free software; you can redistribute it and/or modify
  *   it under the terms of version 2 of the GNU General Public License as
@@ -13,6 +14,7 @@
  *   BSD LICENSE
  *
  *   Copyright (C) 2016 Advanced Micro Devices, Inc. All Rights Reserved.
+ *   Copyright (C) 2016 T-Platforms. All Rights Reserved.
  *
  *   Redistribution and use in source and binary forms, with or without
  *   modification, are permitted provided that the following conditions
@@ -79,40 +81,42 @@ static int ndev_mw_to_bar(struct amd_ntb_dev *ndev, int idx)
 	return 1 << idx;
 }
 
-static int amd_ntb_mw_count(struct ntb_dev *ntb)
+static int amd_ntb_mw_count(struct ntb_dev *ntb, int pidx)
 {
+	if (pidx != NTB_DEF_PEER_IDX)
+		return -EINVAL;
+
 	return ntb_ndev(ntb)->mw_count;
 }
 
-static int amd_ntb_mw_get_range(struct ntb_dev *ntb, int idx,
-				phys_addr_t *base,
-				resource_size_t *size,
-				resource_size_t *align,
-				resource_size_t *align_size)
+static int amd_ntb_mw_get_align(struct ntb_dev *ntb, int pidx, int idx,
+				resource_size_t *addr_align,
+				resource_size_t *size_align,
+				resource_size_t *size_max)
 {
 	struct amd_ntb_dev *ndev = ntb_ndev(ntb);
 	int bar;
 
+	if (pidx != NTB_DEF_PEER_IDX)
+		return -EINVAL;
+
 	bar = ndev_mw_to_bar(ndev, idx);
 	if (bar < 0)
 		return bar;
 
-	if (base)
-		*base = pci_resource_start(ndev->ntb.pdev, bar);
-
-	if (size)
-		*size = pci_resource_len(ndev->ntb.pdev, bar);
+	if (addr_align)
+		*addr_align = SZ_4K;
 
-	if (align)
-		*align = SZ_4K;
+	if (size_align)
+		*size_align = 1;
 
-	if (align_size)
-		*align_size = 1;
+	if (size_max)
+		*size_max = pci_resource_len(ndev->ntb.pdev, bar);
 
 	return 0;
 }
 
-static int amd_ntb_mw_set_trans(struct ntb_dev *ntb, int idx,
+static int amd_ntb_mw_set_trans(struct ntb_dev *ntb, int pidx, int idx,
 				dma_addr_t addr, resource_size_t size)
 {
 	struct amd_ntb_dev *ndev = ntb_ndev(ntb);
@@ -122,11 +126,14 @@ static int amd_ntb_mw_set_trans(struct ntb_dev *ntb, int idx,
 	u64 base_addr, limit, reg_val;
 	int bar;
 
+	if (pidx != NTB_DEF_PEER_IDX)
+		return -EINVAL;
+
 	bar = ndev_mw_to_bar(ndev, idx);
 	if (bar < 0)
 		return bar;
 
-	mw_size = pci_resource_len(ndev->ntb.pdev, bar);
+	mw_size = pci_resource_len(ntb->pdev, bar);
 
 	/* make sure the range fits in the usable mw size */
 	if (size > mw_size)
@@ -135,7 +142,7 @@ static int amd_ntb_mw_set_trans(struct ntb_dev *ntb, int idx,
 	mmio = ndev->self_mmio;
 	peer_mmio = ndev->peer_mmio;
 
-	base_addr = pci_resource_start(ndev->ntb.pdev, bar);
+	base_addr = pci_resource_start(ntb->pdev, bar);
 
 	if (bar != 1) {
 		xlat_reg = AMD_BAR23XLAT_OFFSET + ((bar - 2) << 2);
@@ -212,7 +219,7 @@ static int amd_link_is_up(struct amd_ntb_dev *ndev)
 	return 0;
 }
 
-static int amd_ntb_link_is_up(struct ntb_dev *ntb,
+static u64 amd_ntb_link_is_up(struct ntb_dev *ntb,
 			      enum ntb_speed *speed,
 			      enum ntb_width *width)
 {
@@ -225,7 +232,7 @@ static int amd_ntb_link_is_up(struct ntb_dev *ntb,
 		if (width)
 			*width = NTB_LNK_STA_WIDTH(ndev->lnk_sta);
 
-		dev_dbg(ndev_dev(ndev), "link is up.\n");
+		dev_dbg(&ntb->pdev->dev, "link is up.\n");
 
 		ret = 1;
 	} else {
@@ -234,7 +241,7 @@ static int amd_ntb_link_is_up(struct ntb_dev *ntb,
 		if (width)
 			*width = NTB_WIDTH_NONE;
 
-		dev_dbg(ndev_dev(ndev), "link is down.\n");
+		dev_dbg(&ntb->pdev->dev, "link is down.\n");
 	}
 
 	return ret;
@@ -254,7 +261,7 @@ static int amd_ntb_link_enable(struct ntb_dev *ntb,
 
 	if (ndev->ntb.topo == NTB_TOPO_SEC)
 		return -EINVAL;
-	dev_dbg(ndev_dev(ndev), "Enabling Link.\n");
+	dev_dbg(&ntb->pdev->dev, "Enabling Link.\n");
 
 	ntb_ctl = readl(mmio + AMD_CNTL_OFFSET);
 	ntb_ctl |= (PMM_REG_CTL | SMM_REG_CTL);
@@ -275,7 +282,7 @@ static int amd_ntb_link_disable(struct ntb_dev *ntb)
 
 	if (ndev->ntb.topo == NTB_TOPO_SEC)
 		return -EINVAL;
-	dev_dbg(ndev_dev(ndev), "Enabling Link.\n");
+	dev_dbg(&ntb->pdev->dev, "Enabling Link.\n");
 
 	ntb_ctl = readl(mmio + AMD_CNTL_OFFSET);
 	ntb_ctl &= ~(PMM_REG_CTL | SMM_REG_CTL);
@@ -284,6 +291,31 @@ static int amd_ntb_link_disable(struct ntb_dev *ntb)
 	return 0;
 }
 
+static int amd_ntb_peer_mw_count(struct ntb_dev *ntb)
+{
+	/* The same as for inbound MWs */
+	return ntb_ndev(ntb)->mw_count;
+}
+
+static int amd_ntb_peer_mw_get_addr(struct ntb_dev *ntb, int idx,
+				    phys_addr_t *base, resource_size_t *size)
+{
+	struct amd_ntb_dev *ndev = ntb_ndev(ntb);
+	int bar;
+
+	bar = ndev_mw_to_bar(ndev, idx);
+	if (bar < 0)
+		return bar;
+
+	if (base)
+		*base = pci_resource_start(ndev->ntb.pdev, bar);
+
+	if (size)
+		*size = pci_resource_len(ndev->ntb.pdev, bar);
+
+	return 0;
+}
+
 static u64 amd_ntb_db_valid_mask(struct ntb_dev *ntb)
 {
 	return ntb_ndev(ntb)->db_valid_mask;
@@ -400,30 +432,30 @@ static int amd_ntb_spad_write(struct ntb_dev *ntb,
 	return 0;
 }
 
-static u32 amd_ntb_peer_spad_read(struct ntb_dev *ntb, int idx)
+static u32 amd_ntb_peer_spad_read(struct ntb_dev *ntb, int pidx, int sidx)
 {
 	struct amd_ntb_dev *ndev = ntb_ndev(ntb);
 	void __iomem *mmio = ndev->self_mmio;
 	u32 offset;
 
-	if (idx < 0 || idx >= ndev->spad_count)
+	if (sidx < 0 || sidx >= ndev->spad_count)
 		return -EINVAL;
 
-	offset = ndev->peer_spad + (idx << 2);
+	offset = ndev->peer_spad + (sidx << 2);
 	return readl(mmio + AMD_SPAD_OFFSET + offset);
 }
 
-static int amd_ntb_peer_spad_write(struct ntb_dev *ntb,
-				   int idx, u32 val)
+static int amd_ntb_peer_spad_write(struct ntb_dev *ntb, int pidx,
+				   int sidx, u32 val)
 {
 	struct amd_ntb_dev *ndev = ntb_ndev(ntb);
 	void __iomem *mmio = ndev->self_mmio;
 	u32 offset;
 
-	if (idx < 0 || idx >= ndev->spad_count)
+	if (sidx < 0 || sidx >= ndev->spad_count)
 		return -EINVAL;
 
-	offset = ndev->peer_spad + (idx << 2);
+	offset = ndev->peer_spad + (sidx << 2);
 	writel(val, mmio + AMD_SPAD_OFFSET + offset);
 
 	return 0;
@@ -431,8 +463,10 @@ static int amd_ntb_peer_spad_write(struct ntb_dev *ntb,
 
 static const struct ntb_dev_ops amd_ntb_ops = {
 	.mw_count		= amd_ntb_mw_count,
-	.mw_get_range		= amd_ntb_mw_get_range,
+	.mw_get_align		= amd_ntb_mw_get_align,
 	.mw_set_trans		= amd_ntb_mw_set_trans,
+	.peer_mw_count		= amd_ntb_peer_mw_count,
+	.peer_mw_get_addr	= amd_ntb_peer_mw_get_addr,
 	.link_is_up		= amd_ntb_link_is_up,
 	.link_enable		= amd_ntb_link_enable,
 	.link_disable		= amd_ntb_link_disable,
@@ -466,18 +500,19 @@ static void amd_ack_smu(struct amd_ntb_dev *ndev, u32 bit)
 static void amd_handle_event(struct amd_ntb_dev *ndev, int vec)
 {
 	void __iomem *mmio = ndev->self_mmio;
+	struct device *dev = &ndev->ntb.pdev->dev;
 	u32 status;
 
 	status = readl(mmio + AMD_INTSTAT_OFFSET);
 	if (!(status & AMD_EVENT_INTMASK))
 		return;
 
-	dev_dbg(ndev_dev(ndev), "status = 0x%x and vec = %d\n", status, vec);
+	dev_dbg(dev, "status = 0x%x and vec = %d\n", status, vec);
 
 	status &= AMD_EVENT_INTMASK;
 	switch (status) {
 	case AMD_PEER_FLUSH_EVENT:
-		dev_info(ndev_dev(ndev), "Flush is done.\n");
+		dev_info(dev, "Flush is done.\n");
 		break;
 	case AMD_PEER_RESET_EVENT:
 		amd_ack_smu(ndev, AMD_PEER_RESET_EVENT);
@@ -503,7 +538,7 @@ static void amd_handle_event(struct amd_ntb_dev *ndev, int vec)
 		status = readl(mmio + AMD_PMESTAT_OFFSET);
 		/* check if this is WAKEUP event */
 		if (status & 0x1)
-			dev_info(ndev_dev(ndev), "Wakeup is done.\n");
+			dev_info(dev, "Wakeup is done.\n");
 
 		amd_ack_smu(ndev, AMD_PEER_D0_EVENT);
 
@@ -512,14 +547,14 @@ static void amd_handle_event(struct amd_ntb_dev *ndev, int vec)
 				      AMD_LINK_HB_TIMEOUT);
 		break;
 	default:
-		dev_info(ndev_dev(ndev), "event status = 0x%x.\n", status);
+		dev_info(dev, "event status = 0x%x.\n", status);
 		break;
 	}
 }
 
 static irqreturn_t ndev_interrupt(struct amd_ntb_dev *ndev, int vec)
 {
-	dev_dbg(ndev_dev(ndev), "vec %d\n", vec);
+	dev_dbg(&ndev->ntb.pdev->dev, "vec %d\n", vec);
 
 	if (vec > (AMD_DB_CNT - 1) || (ndev->msix_vec_count == 1))
 		amd_handle_event(ndev, vec);
@@ -541,7 +576,7 @@ static irqreturn_t ndev_irq_isr(int irq, void *dev)
 {
 	struct amd_ntb_dev *ndev = dev;
 
-	return ndev_interrupt(ndev, irq - ndev_pdev(ndev)->irq);
+	return ndev_interrupt(ndev, irq - ndev->ntb.pdev->irq);
 }
 
 static int ndev_init_isr(struct amd_ntb_dev *ndev,
@@ -550,7 +585,7 @@ static int ndev_init_isr(struct amd_ntb_dev *ndev,
 	struct pci_dev *pdev;
 	int rc, i, msix_count, node;
 
-	pdev = ndev_pdev(ndev);
+	pdev = ndev->ntb.pdev;
 
 	node = dev_to_node(&pdev->dev);
 
@@ -592,7 +627,7 @@ static int ndev_init_isr(struct amd_ntb_dev *ndev,
 			goto err_msix_request;
 	}
 
-	dev_dbg(ndev_dev(ndev), "Using msix interrupts\n");
+	dev_dbg(&pdev->dev, "Using msix interrupts\n");
 	ndev->db_count = msix_min;
 	ndev->msix_vec_count = msix_max;
 	return 0;
@@ -619,7 +654,7 @@ err_msix_vec_alloc:
 	if (rc)
 		goto err_msi_request;
 
-	dev_dbg(ndev_dev(ndev), "Using msi interrupts\n");
+	dev_dbg(&pdev->dev, "Using msi interrupts\n");
 	ndev->db_count = 1;
 	ndev->msix_vec_count = 1;
 	return 0;
@@ -636,7 +671,7 @@ err_msi_enable:
 	if (rc)
 		goto err_intx_request;
 
-	dev_dbg(ndev_dev(ndev), "Using intx interrupts\n");
+	dev_dbg(&pdev->dev, "Using intx interrupts\n");
 	ndev->db_count = 1;
 	ndev->msix_vec_count = 1;
 	return 0;
@@ -651,7 +686,7 @@ static void ndev_deinit_isr(struct amd_ntb_dev *ndev)
 	void __iomem *mmio = ndev->self_mmio;
 	int i;
 
-	pdev = ndev_pdev(ndev);
+	pdev = ndev->ntb.pdev;
 
 	/* Mask all doorbell interrupts */
 	ndev->db_mask = ndev->db_valid_mask;
@@ -777,7 +812,8 @@ static void ndev_init_debugfs(struct amd_ntb_dev *ndev)
 		ndev->debugfs_info = NULL;
 	} else {
 		ndev->debugfs_dir =
-			debugfs_create_dir(ndev_name(ndev), debugfs_dir);
+			debugfs_create_dir(pci_name(ndev->ntb.pdev),
+					   debugfs_dir);
 		if (!ndev->debugfs_dir)
 			ndev->debugfs_info = NULL;
 		else
@@ -812,7 +848,7 @@ static int amd_poll_link(struct amd_ntb_dev *ndev)
 	reg = readl(mmio + AMD_SIDEINFO_OFFSET);
 	reg &= NTB_LIN_STA_ACTIVE_BIT;
 
-	dev_dbg(ndev_dev(ndev), "%s: reg_val = 0x%x.\n", __func__, reg);
+	dev_dbg(&ndev->ntb.pdev->dev, "%s: reg_val = 0x%x.\n", __func__, reg);
 
 	if (reg == ndev->cntl_sta)
 		return 0;
@@ -894,7 +930,8 @@ static int amd_init_ntb(struct amd_ntb_dev *ndev)
 
 		break;
 	default:
-		dev_err(ndev_dev(ndev), "AMD NTB does not support B2B mode.\n");
+		dev_err(&ndev->ntb.pdev->dev,
+			"AMD NTB does not support B2B mode.\n");
 		return -EINVAL;
 	}
 
@@ -923,10 +960,10 @@ static int amd_init_dev(struct amd_ntb_dev *ndev)
 	struct pci_dev *pdev;
 	int rc = 0;
 
-	pdev = ndev_pdev(ndev);
+	pdev = ndev->ntb.pdev;
 
 	ndev->ntb.topo = amd_get_topo(ndev);
-	dev_dbg(ndev_dev(ndev), "AMD NTB topo is %s\n",
+	dev_dbg(&pdev->dev, "AMD NTB topo is %s\n",
 		ntb_topo_string(ndev->ntb.topo));
 
 	rc = amd_init_ntb(ndev);
@@ -935,7 +972,7 @@ static int amd_init_dev(struct amd_ntb_dev *ndev)
 
 	rc = amd_init_isr(ndev);
 	if (rc) {
-		dev_err(ndev_dev(ndev), "fail to init isr.\n");
+		dev_err(&pdev->dev, "fail to init isr.\n");
 		return rc;
 	}
 
@@ -973,7 +1010,7 @@ static int amd_ntb_init_pci(struct amd_ntb_dev *ndev,
 		rc = pci_set_dma_mask(pdev, DMA_BIT_MASK(32));
 		if (rc)
 			goto err_dma_mask;
-		dev_warn(ndev_dev(ndev), "Cannot DMA highmem\n");
+		dev_warn(&pdev->dev, "Cannot DMA highmem\n");
 	}
 
 	rc = pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(64));
@@ -981,7 +1018,7 @@ static int amd_ntb_init_pci(struct amd_ntb_dev *ndev,
 		rc = pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(32));
 		if (rc)
 			goto err_dma_mask;
-		dev_warn(ndev_dev(ndev), "Cannot DMA consistent highmem\n");
+		dev_warn(&pdev->dev, "Cannot DMA consistent highmem\n");
 	}
 
 	ndev->self_mmio = pci_iomap(pdev, 0, 0);
@@ -1004,7 +1041,7 @@ err_pci_enable:
 
 static void amd_ntb_deinit_pci(struct amd_ntb_dev *ndev)
 {
-	struct pci_dev *pdev = ndev_pdev(ndev);
+	struct pci_dev *pdev = ndev->ntb.pdev;
 
 	pci_iounmap(pdev, ndev->self_mmio);
 
diff --git a/drivers/ntb/hw/amd/ntb_hw_amd.h b/drivers/ntb/hw/amd/ntb_hw_amd.h
index 13d73ed94a52..8f3617a46292 100644
--- a/drivers/ntb/hw/amd/ntb_hw_amd.h
+++ b/drivers/ntb/hw/amd/ntb_hw_amd.h
@@ -211,9 +211,6 @@ struct amd_ntb_dev {
 	struct dentry *debugfs_info;
 };
 
-#define ndev_pdev(ndev) ((ndev)->ntb.pdev)
-#define ndev_name(ndev) pci_name(ndev_pdev(ndev))
-#define ndev_dev(ndev) (&ndev_pdev(ndev)->dev)
 #define ntb_ndev(__ntb) container_of(__ntb, struct amd_ntb_dev, ntb)
 #define hb_ndev(__work) container_of(__work, struct amd_ntb_dev, hb_timer.work)
 
diff --git a/drivers/ntb/hw/idt/Kconfig b/drivers/ntb/hw/idt/Kconfig
new file mode 100644
index 000000000000..b360e5613b9f
--- /dev/null
+++ b/drivers/ntb/hw/idt/Kconfig
@@ -0,0 +1,31 @@
+config NTB_IDT
+	tristate "IDT PCIe-switch Non-Transparent Bridge support"
+	depends on PCI
+	help
+	 This driver supports NTB of cappable IDT PCIe-switches.
+
+	 Some of the pre-initializations must be made before IDT PCIe-switch
+	 exposes it NT-functions correctly. It should be done by either proper
+	 initialisation of EEPROM connected to master smbus of the switch or
+	 by BIOS using slave-SMBus interface changing corresponding registers
+	 value. Evidently it must be done before PCI bus enumeration is
+	 finished in Linux kernel.
+
+	 First of all partitions must be activated and properly assigned to all
+	 the ports with NT-functions intended to be activated (see SWPARTxCTL
+	 and SWPORTxCTL registers). Then all NT-function BARs must be enabled
+	 with chosen valid aperture. For memory windows related BARs the
+	 aperture settings shall determine the maximum size of memory windows
+	 accepted by a BAR. Note that BAR0 must map PCI configuration space
+	 registers.
+
+	 It's worth to note, that since a part of this driver relies on the
+	 BAR settings of peer NT-functions, the BAR setups can't be done over
+	 kernel PCI fixups. That's why the alternative pre-initialization
+	 techniques like BIOS using SMBus interface or EEPROM should be
+	 utilized. Additionally if one needs to have temperature sensor
+	 information printed to system log, the corresponding registers must
+	 be initialized within BIOS/EEPROM as well.
+
+	 If unsure, say N.
+
diff --git a/drivers/ntb/hw/idt/Makefile b/drivers/ntb/hw/idt/Makefile
new file mode 100644
index 000000000000..a102cf154be0
--- /dev/null
+++ b/drivers/ntb/hw/idt/Makefile
@@ -0,0 +1 @@
+obj-$(CONFIG_NTB_IDT) += ntb_hw_idt.o
diff --git a/drivers/ntb/hw/idt/ntb_hw_idt.c b/drivers/ntb/hw/idt/ntb_hw_idt.c
new file mode 100644
index 000000000000..d44d7ef38fe8
--- /dev/null
+++ b/drivers/ntb/hw/idt/ntb_hw_idt.c
@@ -0,0 +1,2712 @@
+/*
+ *   This file is provided under a GPLv2 license.  When using or
+ *   redistributing this file, you may do so under that license.
+ *
+ *   GPL LICENSE SUMMARY
+ *
+ *   Copyright (C) 2016 T-Platforms All Rights Reserved.
+ *
+ *   This program is free software; you can redistribute it and/or modify it
+ *   under the terms and conditions of the GNU General Public License,
+ *   version 2, as published by the Free Software Foundation.
+ *
+ *   This program is distributed in the hope that it will be useful, but
+ *   WITHOUT ANY WARRANTY; without even the implied warranty of
+ *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General
+ *   Public License for more details.
+ *
+ *   You should have received a copy of the GNU General Public License along
+ *   with this program; if not, one can be found http://www.gnu.org/licenses/.
+ *
+ *   The full GNU General Public License is included in this distribution in
+ *   the file called "COPYING".
+ *
+ *   THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ *   "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ *   LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ *   A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ *   OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ *   SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ *   LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ *   DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ *   THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ *   (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ *   OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ * IDT PCIe-switch NTB Linux driver
+ *
+ * Contact Information:
+ * Serge Semin <fancer.lancer@gmail.com>, <Sergey.Semin@t-platforms.ru>
+ */
+
+#include <linux/stddef.h>
+#include <linux/types.h>
+#include <linux/kernel.h>
+#include <linux/bitops.h>
+#include <linux/sizes.h>
+#include <linux/module.h>
+#include <linux/moduleparam.h>
+#include <linux/init.h>
+#include <linux/interrupt.h>
+#include <linux/spinlock.h>
+#include <linux/pci.h>
+#include <linux/aer.h>
+#include <linux/slab.h>
+#include <linux/list.h>
+#include <linux/debugfs.h>
+#include <linux/ntb.h>
+
+#include "ntb_hw_idt.h"
+
+#define NTB_NAME	"ntb_hw_idt"
+#define NTB_DESC	"IDT PCI-E Non-Transparent Bridge Driver"
+#define NTB_VER		"2.0"
+#define NTB_IRQNAME	"ntb_irq_idt"
+
+MODULE_DESCRIPTION(NTB_DESC);
+MODULE_VERSION(NTB_VER);
+MODULE_LICENSE("GPL v2");
+MODULE_AUTHOR("T-platforms");
+
+/*
+ * NT Endpoint registers table simplifying a loop access to the functionally
+ * related registers
+ */
+static const struct idt_ntb_regs ntdata_tbl = {
+	{ {IDT_NT_BARSETUP0,	IDT_NT_BARLIMIT0,
+	   IDT_NT_BARLTBASE0,	IDT_NT_BARUTBASE0},
+	  {IDT_NT_BARSETUP1,	IDT_NT_BARLIMIT1,
+	   IDT_NT_BARLTBASE1,	IDT_NT_BARUTBASE1},
+	  {IDT_NT_BARSETUP2,	IDT_NT_BARLIMIT2,
+	   IDT_NT_BARLTBASE2,	IDT_NT_BARUTBASE2},
+	  {IDT_NT_BARSETUP3,	IDT_NT_BARLIMIT3,
+	   IDT_NT_BARLTBASE3,	IDT_NT_BARUTBASE3},
+	  {IDT_NT_BARSETUP4,	IDT_NT_BARLIMIT4,
+	   IDT_NT_BARLTBASE4,	IDT_NT_BARUTBASE4},
+	  {IDT_NT_BARSETUP5,	IDT_NT_BARLIMIT5,
+	   IDT_NT_BARLTBASE5,	IDT_NT_BARUTBASE5} },
+	{ {IDT_NT_INMSG0,	IDT_NT_OUTMSG0,	IDT_NT_INMSGSRC0},
+	  {IDT_NT_INMSG1,	IDT_NT_OUTMSG1,	IDT_NT_INMSGSRC1},
+	  {IDT_NT_INMSG2,	IDT_NT_OUTMSG2,	IDT_NT_INMSGSRC2},
+	  {IDT_NT_INMSG3,	IDT_NT_OUTMSG3,	IDT_NT_INMSGSRC3} }
+};
+
+/*
+ * NT Endpoint ports data table with the corresponding pcie command, link
+ * status, control and BAR-related registers
+ */
+static const struct idt_ntb_port portdata_tbl[IDT_MAX_NR_PORTS] = {
+/*0*/	{ IDT_SW_NTP0_PCIECMDSTS,	IDT_SW_NTP0_PCIELCTLSTS,
+	  IDT_SW_NTP0_NTCTL,
+	  IDT_SW_SWPORT0CTL,		IDT_SW_SWPORT0STS,
+	  { {IDT_SW_NTP0_BARSETUP0,	IDT_SW_NTP0_BARLIMIT0,
+	     IDT_SW_NTP0_BARLTBASE0,	IDT_SW_NTP0_BARUTBASE0},
+	    {IDT_SW_NTP0_BARSETUP1,	IDT_SW_NTP0_BARLIMIT1,
+	     IDT_SW_NTP0_BARLTBASE1,	IDT_SW_NTP0_BARUTBASE1},
+	    {IDT_SW_NTP0_BARSETUP2,	IDT_SW_NTP0_BARLIMIT2,
+	     IDT_SW_NTP0_BARLTBASE2,	IDT_SW_NTP0_BARUTBASE2},
+	    {IDT_SW_NTP0_BARSETUP3,	IDT_SW_NTP0_BARLIMIT3,
+	     IDT_SW_NTP0_BARLTBASE3,	IDT_SW_NTP0_BARUTBASE3},
+	    {IDT_SW_NTP0_BARSETUP4,	IDT_SW_NTP0_BARLIMIT4,
+	     IDT_SW_NTP0_BARLTBASE4,	IDT_SW_NTP0_BARUTBASE4},
+	    {IDT_SW_NTP0_BARSETUP5,	IDT_SW_NTP0_BARLIMIT5,
+	     IDT_SW_NTP0_BARLTBASE5,	IDT_SW_NTP0_BARUTBASE5} } },
+/*1*/	{0},
+/*2*/	{ IDT_SW_NTP2_PCIECMDSTS,	IDT_SW_NTP2_PCIELCTLSTS,
+	  IDT_SW_NTP2_NTCTL,
+	  IDT_SW_SWPORT2CTL,		IDT_SW_SWPORT2STS,
+	  { {IDT_SW_NTP2_BARSETUP0,	IDT_SW_NTP2_BARLIMIT0,
+	     IDT_SW_NTP2_BARLTBASE0,	IDT_SW_NTP2_BARUTBASE0},
+	    {IDT_SW_NTP2_BARSETUP1,	IDT_SW_NTP2_BARLIMIT1,
+	     IDT_SW_NTP2_BARLTBASE1,	IDT_SW_NTP2_BARUTBASE1},
+	    {IDT_SW_NTP2_BARSETUP2,	IDT_SW_NTP2_BARLIMIT2,
+	     IDT_SW_NTP2_BARLTBASE2,	IDT_SW_NTP2_BARUTBASE2},
+	    {IDT_SW_NTP2_BARSETUP3,	IDT_SW_NTP2_BARLIMIT3,
+	     IDT_SW_NTP2_BARLTBASE3,	IDT_SW_NTP2_BARUTBASE3},
+	    {IDT_SW_NTP2_BARSETUP4,	IDT_SW_NTP2_BARLIMIT4,
+	     IDT_SW_NTP2_BARLTBASE4,	IDT_SW_NTP2_BARUTBASE4},
+	    {IDT_SW_NTP2_BARSETUP5,	IDT_SW_NTP2_BARLIMIT5,
+	     IDT_SW_NTP2_BARLTBASE5,	IDT_SW_NTP2_BARUTBASE5} } },
+/*3*/	{0},
+/*4*/	{ IDT_SW_NTP4_PCIECMDSTS,	IDT_SW_NTP4_PCIELCTLSTS,
+	  IDT_SW_NTP4_NTCTL,
+	  IDT_SW_SWPORT4CTL,		IDT_SW_SWPORT4STS,
+	  { {IDT_SW_NTP4_BARSETUP0,	IDT_SW_NTP4_BARLIMIT0,
+	     IDT_SW_NTP4_BARLTBASE0,	IDT_SW_NTP4_BARUTBASE0},
+	    {IDT_SW_NTP4_BARSETUP1,	IDT_SW_NTP4_BARLIMIT1,
+	     IDT_SW_NTP4_BARLTBASE1,	IDT_SW_NTP4_BARUTBASE1},
+	    {IDT_SW_NTP4_BARSETUP2,	IDT_SW_NTP4_BARLIMIT2,
+	     IDT_SW_NTP4_BARLTBASE2,	IDT_SW_NTP4_BARUTBASE2},
+	    {IDT_SW_NTP4_BARSETUP3,	IDT_SW_NTP4_BARLIMIT3,
+	     IDT_SW_NTP4_BARLTBASE3,	IDT_SW_NTP4_BARUTBASE3},
+	    {IDT_SW_NTP4_BARSETUP4,	IDT_SW_NTP4_BARLIMIT4,
+	     IDT_SW_NTP4_BARLTBASE4,	IDT_SW_NTP4_BARUTBASE4},
+	    {IDT_SW_NTP4_BARSETUP5,	IDT_SW_NTP4_BARLIMIT5,
+	     IDT_SW_NTP4_BARLTBASE5,	IDT_SW_NTP4_BARUTBASE5} } },
+/*5*/	{0},
+/*6*/	{ IDT_SW_NTP6_PCIECMDSTS,	IDT_SW_NTP6_PCIELCTLSTS,
+	  IDT_SW_NTP6_NTCTL,
+	  IDT_SW_SWPORT6CTL,		IDT_SW_SWPORT6STS,
+	  { {IDT_SW_NTP6_BARSETUP0,	IDT_SW_NTP6_BARLIMIT0,
+	     IDT_SW_NTP6_BARLTBASE0,	IDT_SW_NTP6_BARUTBASE0},
+	    {IDT_SW_NTP6_BARSETUP1,	IDT_SW_NTP6_BARLIMIT1,
+	     IDT_SW_NTP6_BARLTBASE1,	IDT_SW_NTP6_BARUTBASE1},
+	    {IDT_SW_NTP6_BARSETUP2,	IDT_SW_NTP6_BARLIMIT2,
+	     IDT_SW_NTP6_BARLTBASE2,	IDT_SW_NTP6_BARUTBASE2},
+	    {IDT_SW_NTP6_BARSETUP3,	IDT_SW_NTP6_BARLIMIT3,
+	     IDT_SW_NTP6_BARLTBASE3,	IDT_SW_NTP6_BARUTBASE3},
+	    {IDT_SW_NTP6_BARSETUP4,	IDT_SW_NTP6_BARLIMIT4,
+	     IDT_SW_NTP6_BARLTBASE4,	IDT_SW_NTP6_BARUTBASE4},
+	    {IDT_SW_NTP6_BARSETUP5,	IDT_SW_NTP6_BARLIMIT5,
+	     IDT_SW_NTP6_BARLTBASE5,	IDT_SW_NTP6_BARUTBASE5} } },
+/*7*/	{0},
+/*8*/	{ IDT_SW_NTP8_PCIECMDSTS,	IDT_SW_NTP8_PCIELCTLSTS,
+	  IDT_SW_NTP8_NTCTL,
+	  IDT_SW_SWPORT8CTL,		IDT_SW_SWPORT8STS,
+	  { {IDT_SW_NTP8_BARSETUP0,	IDT_SW_NTP8_BARLIMIT0,
+	     IDT_SW_NTP8_BARLTBASE0,	IDT_SW_NTP8_BARUTBASE0},
+	    {IDT_SW_NTP8_BARSETUP1,	IDT_SW_NTP8_BARLIMIT1,
+	     IDT_SW_NTP8_BARLTBASE1,	IDT_SW_NTP8_BARUTBASE1},
+	    {IDT_SW_NTP8_BARSETUP2,	IDT_SW_NTP8_BARLIMIT2,
+	     IDT_SW_NTP8_BARLTBASE2,	IDT_SW_NTP8_BARUTBASE2},
+	    {IDT_SW_NTP8_BARSETUP3,	IDT_SW_NTP8_BARLIMIT3,
+	     IDT_SW_NTP8_BARLTBASE3,	IDT_SW_NTP8_BARUTBASE3},
+	    {IDT_SW_NTP8_BARSETUP4,	IDT_SW_NTP8_BARLIMIT4,
+	     IDT_SW_NTP8_BARLTBASE4,	IDT_SW_NTP8_BARUTBASE4},
+	    {IDT_SW_NTP8_BARSETUP5,	IDT_SW_NTP8_BARLIMIT5,
+	     IDT_SW_NTP8_BARLTBASE5,	IDT_SW_NTP8_BARUTBASE5} } },
+/*9*/	{0},
+/*10*/	{0},
+/*11*/	{0},
+/*12*/	{ IDT_SW_NTP12_PCIECMDSTS,	IDT_SW_NTP12_PCIELCTLSTS,
+	  IDT_SW_NTP12_NTCTL,
+	  IDT_SW_SWPORT12CTL,		IDT_SW_SWPORT12STS,
+	  { {IDT_SW_NTP12_BARSETUP0,	IDT_SW_NTP12_BARLIMIT0,
+	     IDT_SW_NTP12_BARLTBASE0,	IDT_SW_NTP12_BARUTBASE0},
+	    {IDT_SW_NTP12_BARSETUP1,	IDT_SW_NTP12_BARLIMIT1,
+	     IDT_SW_NTP12_BARLTBASE1,	IDT_SW_NTP12_BARUTBASE1},
+	    {IDT_SW_NTP12_BARSETUP2,	IDT_SW_NTP12_BARLIMIT2,
+	     IDT_SW_NTP12_BARLTBASE2,	IDT_SW_NTP12_BARUTBASE2},
+	    {IDT_SW_NTP12_BARSETUP3,	IDT_SW_NTP12_BARLIMIT3,
+	     IDT_SW_NTP12_BARLTBASE3,	IDT_SW_NTP12_BARUTBASE3},
+	    {IDT_SW_NTP12_BARSETUP4,	IDT_SW_NTP12_BARLIMIT4,
+	     IDT_SW_NTP12_BARLTBASE4,	IDT_SW_NTP12_BARUTBASE4},
+	    {IDT_SW_NTP12_BARSETUP5,	IDT_SW_NTP12_BARLIMIT5,
+	     IDT_SW_NTP12_BARLTBASE5,	IDT_SW_NTP12_BARUTBASE5} } },
+/*13*/	{0},
+/*14*/	{0},
+/*15*/	{0},
+/*16*/	{ IDT_SW_NTP16_PCIECMDSTS,	IDT_SW_NTP16_PCIELCTLSTS,
+	  IDT_SW_NTP16_NTCTL,
+	  IDT_SW_SWPORT16CTL,		IDT_SW_SWPORT16STS,
+	  { {IDT_SW_NTP16_BARSETUP0,	IDT_SW_NTP16_BARLIMIT0,
+	     IDT_SW_NTP16_BARLTBASE0,	IDT_SW_NTP16_BARUTBASE0},
+	    {IDT_SW_NTP16_BARSETUP1,	IDT_SW_NTP16_BARLIMIT1,
+	     IDT_SW_NTP16_BARLTBASE1,	IDT_SW_NTP16_BARUTBASE1},
+	    {IDT_SW_NTP16_BARSETUP2,	IDT_SW_NTP16_BARLIMIT2,
+	     IDT_SW_NTP16_BARLTBASE2,	IDT_SW_NTP16_BARUTBASE2},
+	    {IDT_SW_NTP16_BARSETUP3,	IDT_SW_NTP16_BARLIMIT3,
+	     IDT_SW_NTP16_BARLTBASE3,	IDT_SW_NTP16_BARUTBASE3},
+	    {IDT_SW_NTP16_BARSETUP4,	IDT_SW_NTP16_BARLIMIT4,
+	     IDT_SW_NTP16_BARLTBASE4,	IDT_SW_NTP16_BARUTBASE4},
+	    {IDT_SW_NTP16_BARSETUP5,	IDT_SW_NTP16_BARLIMIT5,
+	     IDT_SW_NTP16_BARLTBASE5,	IDT_SW_NTP16_BARUTBASE5} } },
+/*17*/	{0},
+/*18*/	{0},
+/*19*/	{0},
+/*20*/	{ IDT_SW_NTP20_PCIECMDSTS,	IDT_SW_NTP20_PCIELCTLSTS,
+	  IDT_SW_NTP20_NTCTL,
+	  IDT_SW_SWPORT20CTL,		IDT_SW_SWPORT20STS,
+	  { {IDT_SW_NTP20_BARSETUP0,	IDT_SW_NTP20_BARLIMIT0,
+	     IDT_SW_NTP20_BARLTBASE0,	IDT_SW_NTP20_BARUTBASE0},
+	    {IDT_SW_NTP20_BARSETUP1,	IDT_SW_NTP20_BARLIMIT1,
+	     IDT_SW_NTP20_BARLTBASE1,	IDT_SW_NTP20_BARUTBASE1},
+	    {IDT_SW_NTP20_BARSETUP2,	IDT_SW_NTP20_BARLIMIT2,
+	     IDT_SW_NTP20_BARLTBASE2,	IDT_SW_NTP20_BARUTBASE2},
+	    {IDT_SW_NTP20_BARSETUP3,	IDT_SW_NTP20_BARLIMIT3,
+	     IDT_SW_NTP20_BARLTBASE3,	IDT_SW_NTP20_BARUTBASE3},
+	    {IDT_SW_NTP20_BARSETUP4,	IDT_SW_NTP20_BARLIMIT4,
+	     IDT_SW_NTP20_BARLTBASE4,	IDT_SW_NTP20_BARUTBASE4},
+	    {IDT_SW_NTP20_BARSETUP5,	IDT_SW_NTP20_BARLIMIT5,
+	     IDT_SW_NTP20_BARLTBASE5,	IDT_SW_NTP20_BARUTBASE5} } },
+/*21*/	{0},
+/*22*/	{0},
+/*23*/	{0}
+};
+
+/*
+ * IDT PCIe-switch partitions table with the corresponding control, status
+ * and messages control registers
+ */
+static const struct idt_ntb_part partdata_tbl[IDT_MAX_NR_PARTS] = {
+/*0*/	{ IDT_SW_SWPART0CTL,	IDT_SW_SWPART0STS,
+	  {IDT_SW_SWP0MSGCTL0,	IDT_SW_SWP0MSGCTL1,
+	   IDT_SW_SWP0MSGCTL2,	IDT_SW_SWP0MSGCTL3} },
+/*1*/	{ IDT_SW_SWPART1CTL,	IDT_SW_SWPART1STS,
+	  {IDT_SW_SWP1MSGCTL0,	IDT_SW_SWP1MSGCTL1,
+	   IDT_SW_SWP1MSGCTL2,	IDT_SW_SWP1MSGCTL3} },
+/*2*/	{ IDT_SW_SWPART2CTL,	IDT_SW_SWPART2STS,
+	  {IDT_SW_SWP2MSGCTL0,	IDT_SW_SWP2MSGCTL1,
+	   IDT_SW_SWP2MSGCTL2,	IDT_SW_SWP2MSGCTL3} },
+/*3*/	{ IDT_SW_SWPART3CTL,	IDT_SW_SWPART3STS,
+	  {IDT_SW_SWP3MSGCTL0,	IDT_SW_SWP3MSGCTL1,
+	   IDT_SW_SWP3MSGCTL2,	IDT_SW_SWP3MSGCTL3} },
+/*4*/	{ IDT_SW_SWPART4CTL,	IDT_SW_SWPART4STS,
+	  {IDT_SW_SWP4MSGCTL0,	IDT_SW_SWP4MSGCTL1,
+	   IDT_SW_SWP4MSGCTL2,	IDT_SW_SWP4MSGCTL3} },
+/*5*/	{ IDT_SW_SWPART5CTL,	IDT_SW_SWPART5STS,
+	  {IDT_SW_SWP5MSGCTL0,	IDT_SW_SWP5MSGCTL1,
+	   IDT_SW_SWP5MSGCTL2,	IDT_SW_SWP5MSGCTL3} },
+/*6*/	{ IDT_SW_SWPART6CTL,	IDT_SW_SWPART6STS,
+	  {IDT_SW_SWP6MSGCTL0,	IDT_SW_SWP6MSGCTL1,
+	   IDT_SW_SWP6MSGCTL2,	IDT_SW_SWP6MSGCTL3} },
+/*7*/	{ IDT_SW_SWPART7CTL,	IDT_SW_SWPART7STS,
+	  {IDT_SW_SWP7MSGCTL0,	IDT_SW_SWP7MSGCTL1,
+	   IDT_SW_SWP7MSGCTL2,	IDT_SW_SWP7MSGCTL3} }
+};
+
+/*
+ * DebugFS directory to place the driver debug file
+ */
+static struct dentry *dbgfs_topdir;
+
+/*=============================================================================
+ *                1. IDT PCIe-switch registers IO-functions
+ *
+ *    Beside ordinary configuration space registers IDT PCIe-switch expose
+ * global configuration registers, which are used to determine state of other
+ * device ports as well as being notified of some switch-related events.
+ * Additionally all the configuration space registers of all the IDT
+ * PCIe-switch functions are mapped to the Global Address space, so each
+ * function can determine a configuration of any other PCI-function.
+ *    Functions declared in this chapter are created to encapsulate access
+ * to configuration and global registers, so the driver code just need to
+ * provide IDT NTB hardware descriptor and a register address.
+ *=============================================================================
+ */
+
+/*
+ * idt_nt_write() - PCI configuration space registers write method
+ * @ndev:	IDT NTB hardware driver descriptor
+ * @reg:	Register to write data to
+ * @data:	Value to write to the register
+ *
+ * IDT PCIe-switch registers are all Little endian.
+ */
+static void idt_nt_write(struct idt_ntb_dev *ndev,
+			 const unsigned int reg, const u32 data)
+{
+	/*
+	 * It's obvious bug to request a register exceeding the maximum possible
+	 * value as well as to have it unaligned.
+	 */
+	if (WARN_ON(reg > IDT_REG_PCI_MAX || !IS_ALIGNED(reg, IDT_REG_ALIGN)))
+		return;
+
+	/* Just write the value to the specified register */
+	iowrite32(data, ndev->cfgspc + (ptrdiff_t)reg);
+}
+
+/*
+ * idt_nt_read() - PCI configuration space registers read method
+ * @ndev:	IDT NTB hardware driver descriptor
+ * @reg:	Register to write data to
+ *
+ * IDT PCIe-switch Global configuration registers are all Little endian.
+ *
+ * Return: register value
+ */
+static u32 idt_nt_read(struct idt_ntb_dev *ndev, const unsigned int reg)
+{
+	/*
+	 * It's obvious bug to request a register exceeding the maximum possible
+	 * value as well as to have it unaligned.
+	 */
+	if (WARN_ON(reg > IDT_REG_PCI_MAX || !IS_ALIGNED(reg, IDT_REG_ALIGN)))
+		return ~0;
+
+	/* Just read the value from the specified register */
+	return ioread32(ndev->cfgspc + (ptrdiff_t)reg);
+}
+
+/*
+ * idt_sw_write() - Global registers write method
+ * @ndev:	IDT NTB hardware driver descriptor
+ * @reg:	Register to write data to
+ * @data:	Value to write to the register
+ *
+ * IDT PCIe-switch Global configuration registers are all Little endian.
+ */
+static void idt_sw_write(struct idt_ntb_dev *ndev,
+			 const unsigned int reg, const u32 data)
+{
+	unsigned long irqflags;
+
+	/*
+	 * It's obvious bug to request a register exceeding the maximum possible
+	 * value as well as to have it unaligned.
+	 */
+	if (WARN_ON(reg > IDT_REG_SW_MAX || !IS_ALIGNED(reg, IDT_REG_ALIGN)))
+		return;
+
+	/* Lock GASA registers operations */
+	spin_lock_irqsave(&ndev->gasa_lock, irqflags);
+	/* Set the global register address */
+	iowrite32((u32)reg, ndev->cfgspc + (ptrdiff_t)IDT_NT_GASAADDR);
+	/* Put the new value of the register */
+	iowrite32(data, ndev->cfgspc + (ptrdiff_t)IDT_NT_GASADATA);
+	/* Make sure the PCIe transactions are executed */
+	mmiowb();
+	/* Unlock GASA registers operations */
+	spin_unlock_irqrestore(&ndev->gasa_lock, irqflags);
+}
+
+/*
+ * idt_sw_read() - Global registers read method
+ * @ndev:	IDT NTB hardware driver descriptor
+ * @reg:	Register to write data to
+ *
+ * IDT PCIe-switch Global configuration registers are all Little endian.
+ *
+ * Return: register value
+ */
+static u32 idt_sw_read(struct idt_ntb_dev *ndev, const unsigned int reg)
+{
+	unsigned long irqflags;
+	u32 data;
+
+	/*
+	 * It's obvious bug to request a register exceeding the maximum possible
+	 * value as well as to have it unaligned.
+	 */
+	if (WARN_ON(reg > IDT_REG_SW_MAX || !IS_ALIGNED(reg, IDT_REG_ALIGN)))
+		return ~0;
+
+	/* Lock GASA registers operations */
+	spin_lock_irqsave(&ndev->gasa_lock, irqflags);
+	/* Set the global register address */
+	iowrite32((u32)reg, ndev->cfgspc + (ptrdiff_t)IDT_NT_GASAADDR);
+	/* Get the data of the register (read ops acts as MMIO barrier) */
+	data = ioread32(ndev->cfgspc + (ptrdiff_t)IDT_NT_GASADATA);
+	/* Unlock GASA registers operations */
+	spin_unlock_irqrestore(&ndev->gasa_lock, irqflags);
+
+	return data;
+}
+
+/*
+ * idt_reg_set_bits() - set bits of a passed register
+ * @ndev:	IDT NTB hardware driver descriptor
+ * @reg:	Register to change bits of
+ * @reg_lock:	Register access spin lock
+ * @valid_mask:	Mask of valid bits
+ * @set_bits:	Bitmask to set
+ *
+ * Helper method to check whether a passed bitfield is valid and set
+ * corresponding bits of a register.
+ *
+ * WARNING! Make sure the passed register isn't accessed over plane
+ * idt_nt_write() method (read method is ok to be used concurrently).
+ *
+ * Return: zero on success, negative error on invalid bitmask.
+ */
+static inline int idt_reg_set_bits(struct idt_ntb_dev *ndev, unsigned int reg,
+				   spinlock_t *reg_lock,
+				   u64 valid_mask, u64 set_bits)
+{
+	unsigned long irqflags;
+	u32 data;
+
+	if (set_bits & ~(u64)valid_mask)
+		return -EINVAL;
+
+	/* Lock access to the register unless the change is written back */
+	spin_lock_irqsave(reg_lock, irqflags);
+	data = idt_nt_read(ndev, reg) | (u32)set_bits;
+	idt_nt_write(ndev, reg, data);
+	/* Unlock the register */
+	spin_unlock_irqrestore(reg_lock, irqflags);
+
+	return 0;
+}
+
+/*
+ * idt_reg_clear_bits() - clear bits of a passed register
+ * @ndev:	IDT NTB hardware driver descriptor
+ * @reg:	Register to change bits of
+ * @reg_lock:	Register access spin lock
+ * @set_bits:	Bitmask to clear
+ *
+ * Helper method to check whether a passed bitfield is valid and clear
+ * corresponding bits of a register.
+ *
+ * NOTE! Invalid bits are always considered cleared so it's not an error
+ * to clear them over.
+ *
+ * WARNING! Make sure the passed register isn't accessed over plane
+ * idt_nt_write() method (read method is ok to use concurrently).
+ */
+static inline void idt_reg_clear_bits(struct idt_ntb_dev *ndev,
+				     unsigned int reg, spinlock_t *reg_lock,
+				     u64 clear_bits)
+{
+	unsigned long irqflags;
+	u32 data;
+
+	/* Lock access to the register unless the change is written back */
+	spin_lock_irqsave(reg_lock, irqflags);
+	data = idt_nt_read(ndev, reg) & ~(u32)clear_bits;
+	idt_nt_write(ndev, reg, data);
+	/* Unlock the register */
+	spin_unlock_irqrestore(reg_lock, irqflags);
+}
+
+/*===========================================================================
+ *                           2. Ports operations
+ *
+ *    IDT PCIe-switches can have from 3 up to 8 ports with possible
+ * NT-functions enabled. So all the possible ports need to be scanned looking
+ * for NTB activated. NTB API will have enumerated only the ports with NTB.
+ *===========================================================================
+ */
+
+/*
+ * idt_scan_ports() - scan IDT PCIe-switch ports collecting info in the tables
+ * @ndev:	Pointer to the PCI device descriptor
+ *
+ * Return: zero on success, otherwise a negative error number.
+ */
+static int idt_scan_ports(struct idt_ntb_dev *ndev)
+{
+	unsigned char pidx, port, part;
+	u32 data, portsts, partsts;
+
+	/* Retrieve the local port number */
+	data = idt_nt_read(ndev, IDT_NT_PCIELCAP);
+	ndev->port = GET_FIELD(PCIELCAP_PORTNUM, data);
+
+	/* Retrieve the local partition number */
+	portsts = idt_sw_read(ndev, portdata_tbl[ndev->port].sts);
+	ndev->part = GET_FIELD(SWPORTxSTS_SWPART, portsts);
+
+	/* Initialize port/partition -> index tables with invalid values */
+	memset(ndev->port_idx_map, -EINVAL, sizeof(ndev->port_idx_map));
+	memset(ndev->part_idx_map, -EINVAL, sizeof(ndev->part_idx_map));
+
+	/*
+	 * Walk over all the possible ports checking whether any of them has
+	 * NT-function activated
+	 */
+	ndev->peer_cnt = 0;
+	for (pidx = 0; pidx < ndev->swcfg->port_cnt; pidx++) {
+		port = ndev->swcfg->ports[pidx];
+		/* Skip local port */
+		if (port == ndev->port)
+			continue;
+
+		/* Read the port status register to get it partition */
+		portsts = idt_sw_read(ndev, portdata_tbl[port].sts);
+		part = GET_FIELD(SWPORTxSTS_SWPART, portsts);
+
+		/* Retrieve the partition status */
+		partsts = idt_sw_read(ndev, partdata_tbl[part].sts);
+		/* Check if partition state is active and port has NTB */
+		if (IS_FLD_SET(SWPARTxSTS_STATE, partsts, ACT) &&
+		    (IS_FLD_SET(SWPORTxSTS_MODE, portsts, NT) ||
+		     IS_FLD_SET(SWPORTxSTS_MODE, portsts, USNT) ||
+		     IS_FLD_SET(SWPORTxSTS_MODE, portsts, USNTDMA) ||
+		     IS_FLD_SET(SWPORTxSTS_MODE, portsts, NTDMA))) {
+			/* Save the port and partition numbers */
+			ndev->peers[ndev->peer_cnt].port = port;
+			ndev->peers[ndev->peer_cnt].part = part;
+			/* Fill in the port/partition -> index tables */
+			ndev->port_idx_map[port] = ndev->peer_cnt;
+			ndev->part_idx_map[part] = ndev->peer_cnt;
+			ndev->peer_cnt++;
+		}
+	}
+
+	dev_dbg(&ndev->ntb.pdev->dev, "Local port: %hhu, num of peers: %hhu\n",
+		ndev->port, ndev->peer_cnt);
+
+	/* It's useless to have this driver loaded if there is no any peer */
+	if (ndev->peer_cnt == 0) {
+		dev_warn(&ndev->ntb.pdev->dev, "No active peer found\n");
+		return -ENODEV;
+	}
+
+	return 0;
+}
+
+/*
+ * idt_ntb_port_number() - get the local port number
+ * @ntb:	NTB device context.
+ *
+ * Return: the local port number
+ */
+static int idt_ntb_port_number(struct ntb_dev *ntb)
+{
+	struct idt_ntb_dev *ndev = to_ndev_ntb(ntb);
+
+	return ndev->port;
+}
+
+/*
+ * idt_ntb_peer_port_count() - get the number of peer ports
+ * @ntb:	NTB device context.
+ *
+ * Return the count of detected peer NT-functions.
+ *
+ * Return: number of peer ports
+ */
+static int idt_ntb_peer_port_count(struct ntb_dev *ntb)
+{
+	struct idt_ntb_dev *ndev = to_ndev_ntb(ntb);
+
+	return ndev->peer_cnt;
+}
+
+/*
+ * idt_ntb_peer_port_number() - get peer port by given index
+ * @ntb:	NTB device context.
+ * @pidx:	Peer port index.
+ *
+ * Return: peer port or negative error
+ */
+static int idt_ntb_peer_port_number(struct ntb_dev *ntb, int pidx)
+{
+	struct idt_ntb_dev *ndev = to_ndev_ntb(ntb);
+
+	if (pidx < 0 || ndev->peer_cnt <= pidx)
+		return -EINVAL;
+
+	/* Return the detected NT-function port number */
+	return ndev->peers[pidx].port;
+}
+
+/*
+ * idt_ntb_peer_port_idx() - get peer port index by given port number
+ * @ntb:	NTB device context.
+ * @port:	Peer port number.
+ *
+ * Internal port -> index table is pre-initialized with -EINVAL values,
+ * so we just need to return it value
+ *
+ * Return: peer NT-function port index or negative error
+ */
+static int idt_ntb_peer_port_idx(struct ntb_dev *ntb, int port)
+{
+	struct idt_ntb_dev *ndev = to_ndev_ntb(ntb);
+
+	if (port < 0 || IDT_MAX_NR_PORTS <= port)
+		return -EINVAL;
+
+	return ndev->port_idx_map[port];
+}
+
+/*===========================================================================
+ *                         3. Link status operations
+ *    There is no any ready-to-use method to have peer ports notified if NTB
+ * link is set up or got down. Instead global signal can be used instead.
+ * In case if any one of ports changes local NTB link state, it sends
+ * global signal and clears corresponding global state bit. Then all the ports
+ * receive a notification of that, so to make client driver being aware of
+ * possible NTB link change.
+ *    Additionally each of active NT-functions is subscribed to PCIe-link
+ * state changes of peer ports.
+ *===========================================================================
+ */
+
+static void idt_ntb_local_link_disable(struct idt_ntb_dev *ndev);
+
+/*
+ * idt_init_link() - Initialize NTB link state notification subsystem
+ * @ndev:	IDT NTB hardware driver descriptor
+ *
+ * Function performs the basic initialization of some global registers
+ * needed to enable IRQ-based notifications of PCIe Link Up/Down and
+ * Global Signal events.
+ * NOTE Since it's not possible to determine when all the NTB peer drivers are
+ * unloaded as well as have those registers accessed concurrently, we must
+ * preinitialize them with the same value and leave it uncleared on local
+ * driver unload.
+ */
+static void idt_init_link(struct idt_ntb_dev *ndev)
+{
+	u32 part_mask, port_mask, se_mask;
+	unsigned char pidx;
+
+	/* Initialize spin locker of Mapping Table access registers */
+	spin_lock_init(&ndev->mtbl_lock);
+
+	/* Walk over all detected peers collecting port and partition masks */
+	port_mask = ~BIT(ndev->port);
+	part_mask = ~BIT(ndev->part);
+	for (pidx = 0; pidx < ndev->peer_cnt; pidx++) {
+		port_mask &= ~BIT(ndev->peers[pidx].port);
+		part_mask &= ~BIT(ndev->peers[pidx].part);
+	}
+
+	/* Clean the Link Up/Down and GLobal Signal status registers */
+	idt_sw_write(ndev, IDT_SW_SELINKUPSTS, (u32)-1);
+	idt_sw_write(ndev, IDT_SW_SELINKDNSTS, (u32)-1);
+	idt_sw_write(ndev, IDT_SW_SEGSIGSTS, (u32)-1);
+
+	/* Unmask NT-activated partitions to receive Global Switch events */
+	idt_sw_write(ndev, IDT_SW_SEPMSK, part_mask);
+
+	/* Enable PCIe Link Up events of NT-activated ports */
+	idt_sw_write(ndev, IDT_SW_SELINKUPMSK, port_mask);
+
+	/* Enable PCIe Link Down events of NT-activated ports */
+	idt_sw_write(ndev, IDT_SW_SELINKDNMSK, port_mask);
+
+	/* Unmask NT-activated partitions to receive Global Signal events */
+	idt_sw_write(ndev, IDT_SW_SEGSIGMSK, part_mask);
+
+	/* Unmask Link Up/Down and Global Switch Events */
+	se_mask = ~(IDT_SEMSK_LINKUP | IDT_SEMSK_LINKDN | IDT_SEMSK_GSIGNAL);
+	idt_sw_write(ndev, IDT_SW_SEMSK, se_mask);
+
+	dev_dbg(&ndev->ntb.pdev->dev, "NTB link status events initialized");
+}
+
+/*
+ * idt_deinit_link() - deinitialize link subsystem
+ * @ndev:	IDT NTB hardware driver descriptor
+ *
+ * Just disable the link back.
+ */
+static void idt_deinit_link(struct idt_ntb_dev *ndev)
+{
+	/* Disable the link */
+	idt_ntb_local_link_disable(ndev);
+
+	dev_dbg(&ndev->ntb.pdev->dev, "NTB link status events deinitialized");
+}
+
+/*
+ * idt_se_isr() - switch events ISR
+ * @ndev:	IDT NTB hardware driver descriptor
+ * @ntint_sts:	NT-function interrupt status
+ *
+ * This driver doesn't support IDT PCIe-switch dynamic reconfigurations,
+ * Failover capability, etc, so switch events are utilized to notify of
+ * PCIe and NTB link events.
+ * The method is called from PCIe ISR bottom-half routine.
+ */
+static void idt_se_isr(struct idt_ntb_dev *ndev, u32 ntint_sts)
+{
+	u32 sests;
+
+	/* Read Switch Events status */
+	sests = idt_sw_read(ndev, IDT_SW_SESTS);
+
+	/* Clean the Link Up/Down and Global Signal status registers */
+	idt_sw_write(ndev, IDT_SW_SELINKUPSTS, (u32)-1);
+	idt_sw_write(ndev, IDT_SW_SELINKDNSTS, (u32)-1);
+	idt_sw_write(ndev, IDT_SW_SEGSIGSTS, (u32)-1);
+
+	/* Clean the corresponding interrupt bit */
+	idt_nt_write(ndev, IDT_NT_NTINTSTS, IDT_NTINTSTS_SEVENT);
+
+	dev_dbg(&ndev->ntb.pdev->dev, "SE IRQ detected %#08x (SESTS %#08x)",
+			  ntint_sts, sests);
+
+	/* Notify the client driver of possible link state change */
+	ntb_link_event(&ndev->ntb);
+}
+
+/*
+ * idt_ntb_local_link_enable() - enable the local NTB link.
+ * @ndev:	IDT NTB hardware driver descriptor
+ *
+ * In order to enable the NTB link we need:
+ * - enable Completion TLPs translation
+ * - initialize mapping table to enable the Request ID translation
+ * - notify peers of NTB link state change
+ */
+static void idt_ntb_local_link_enable(struct idt_ntb_dev *ndev)
+{
+	u32 reqid, mtbldata = 0;
+	unsigned long irqflags;
+
+	/* Enable the ID protection and Completion TLPs translation */
+	idt_nt_write(ndev, IDT_NT_NTCTL, IDT_NTCTL_CPEN);
+
+	/* Retrieve the current Requester ID (Bus:Device:Function) */
+	reqid = idt_nt_read(ndev, IDT_NT_REQIDCAP);
+
+	/*
+	 * Set the corresponding NT Mapping table entry of port partition index
+	 * with the data to perform the Request ID translation
+	 */
+	mtbldata = SET_FIELD(NTMTBLDATA_REQID, 0, reqid) |
+		   SET_FIELD(NTMTBLDATA_PART, 0, ndev->part) |
+		   IDT_NTMTBLDATA_VALID;
+	spin_lock_irqsave(&ndev->mtbl_lock, irqflags);
+	idt_nt_write(ndev, IDT_NT_NTMTBLADDR, ndev->part);
+	idt_nt_write(ndev, IDT_NT_NTMTBLDATA, mtbldata);
+	mmiowb();
+	spin_unlock_irqrestore(&ndev->mtbl_lock, irqflags);
+
+	/* Notify the peers by setting and clearing the global signal bit */
+	idt_nt_write(ndev, IDT_NT_NTGSIGNAL, IDT_NTGSIGNAL_SET);
+	idt_sw_write(ndev, IDT_SW_SEGSIGSTS, (u32)1 << ndev->part);
+}
+
+/*
+ * idt_ntb_local_link_disable() - disable the local NTB link.
+ * @ndev:	IDT NTB hardware driver descriptor
+ *
+ * In order to enable the NTB link we need:
+ * - disable Completion TLPs translation
+ * - clear corresponding mapping table entry
+ * - notify peers of NTB link state change
+ */
+static void idt_ntb_local_link_disable(struct idt_ntb_dev *ndev)
+{
+	unsigned long irqflags;
+
+	/* Disable Completion TLPs translation */
+	idt_nt_write(ndev, IDT_NT_NTCTL, 0);
+
+	/* Clear the corresponding NT Mapping table entry */
+	spin_lock_irqsave(&ndev->mtbl_lock, irqflags);
+	idt_nt_write(ndev, IDT_NT_NTMTBLADDR, ndev->part);
+	idt_nt_write(ndev, IDT_NT_NTMTBLDATA, 0);
+	mmiowb();
+	spin_unlock_irqrestore(&ndev->mtbl_lock, irqflags);
+
+	/* Notify the peers by setting and clearing the global signal bit */
+	idt_nt_write(ndev, IDT_NT_NTGSIGNAL, IDT_NTGSIGNAL_SET);
+	idt_sw_write(ndev, IDT_SW_SEGSIGSTS, (u32)1 << ndev->part);
+}
+
+/*
+ * idt_ntb_local_link_is_up() - test wethter local NTB link is up
+ * @ndev:	IDT NTB hardware driver descriptor
+ *
+ * Local link is up under the following conditions:
+ * - Bus mastering is enabled
+ * - NTCTL has Completion TLPs translation enabled
+ * - Mapping table permits Request TLPs translation
+ * NOTE: We don't need to check PCIe link state since it's obviously
+ * up while we are able to communicate with IDT PCIe-switch
+ *
+ * Return: true if link is up, otherwise false
+ */
+static bool idt_ntb_local_link_is_up(struct idt_ntb_dev *ndev)
+{
+	unsigned long irqflags;
+	u32 data;
+
+	/* Read the local Bus Master Enable status */
+	data = idt_nt_read(ndev, IDT_NT_PCICMDSTS);
+	if (!(data & IDT_PCICMDSTS_BME))
+		return false;
+
+	/* Read the local Completion TLPs translation enable status */
+	data = idt_nt_read(ndev, IDT_NT_NTCTL);
+	if (!(data & IDT_NTCTL_CPEN))
+		return false;
+
+	/* Read Mapping table entry corresponding to the local partition */
+	spin_lock_irqsave(&ndev->mtbl_lock, irqflags);
+	idt_nt_write(ndev, IDT_NT_NTMTBLADDR, ndev->part);
+	data = idt_nt_read(ndev, IDT_NT_NTMTBLDATA);
+	spin_unlock_irqrestore(&ndev->mtbl_lock, irqflags);
+
+	return !!(data & IDT_NTMTBLDATA_VALID);
+}
+
+/*
+ * idt_ntb_peer_link_is_up() - test whether peer NTB link is up
+ * @ndev:	IDT NTB hardware driver descriptor
+ * @pidx:	Peer port index
+ *
+ * Peer link is up under the following conditions:
+ * - PCIe link is up
+ * - Bus mastering is enabled
+ * - NTCTL has Completion TLPs translation enabled
+ * - Mapping table permits Request TLPs translation
+ *
+ * Return: true if link is up, otherwise false
+ */
+static bool idt_ntb_peer_link_is_up(struct idt_ntb_dev *ndev, int pidx)
+{
+	unsigned long irqflags;
+	unsigned char port;
+	u32 data;
+
+	/* Retrieve the device port number */
+	port = ndev->peers[pidx].port;
+
+	/* Check whether PCIe link is up */
+	data = idt_sw_read(ndev, portdata_tbl[port].sts);
+	if (!(data & IDT_SWPORTxSTS_LINKUP))
+		return false;
+
+	/* Check whether bus mastering is enabled on the peer port */
+	data = idt_sw_read(ndev, portdata_tbl[port].pcicmdsts);
+	if (!(data & IDT_PCICMDSTS_BME))
+		return false;
+
+	/* Check if Completion TLPs translation is enabled on the peer port */
+	data = idt_sw_read(ndev, portdata_tbl[port].ntctl);
+	if (!(data & IDT_NTCTL_CPEN))
+		return false;
+
+	/* Read Mapping table entry corresponding to the peer partition */
+	spin_lock_irqsave(&ndev->mtbl_lock, irqflags);
+	idt_nt_write(ndev, IDT_NT_NTMTBLADDR, ndev->peers[pidx].part);
+	data = idt_nt_read(ndev, IDT_NT_NTMTBLDATA);
+	spin_unlock_irqrestore(&ndev->mtbl_lock, irqflags);
+
+	return !!(data & IDT_NTMTBLDATA_VALID);
+}
+
+/*
+ * idt_ntb_link_is_up() - get the current ntb link state (NTB API callback)
+ * @ntb:	NTB device context.
+ * @speed:	OUT - The link speed expressed as PCIe generation number.
+ * @width:	OUT - The link width expressed as the number of PCIe lanes.
+ *
+ * Get the bitfield of NTB link states for all peer ports
+ *
+ * Return: bitfield of indexed ports link state: bit is set/cleared if the
+ *         link is up/down respectively.
+ */
+static u64 idt_ntb_link_is_up(struct ntb_dev *ntb,
+			      enum ntb_speed *speed, enum ntb_width *width)
+{
+	struct idt_ntb_dev *ndev = to_ndev_ntb(ntb);
+	unsigned char pidx;
+	u64 status;
+	u32 data;
+
+	/* Retrieve the local link speed and width */
+	if (speed != NULL || width != NULL) {
+		data = idt_nt_read(ndev, IDT_NT_PCIELCTLSTS);
+		if (speed != NULL)
+			*speed = GET_FIELD(PCIELCTLSTS_CLS, data);
+		if (width != NULL)
+			*width = GET_FIELD(PCIELCTLSTS_NLW, data);
+	}
+
+	/* If local NTB link isn't up then all the links are considered down */
+	if (!idt_ntb_local_link_is_up(ndev))
+		return 0;
+
+	/* Collect all the peer ports link states into the bitfield */
+	status = 0;
+	for (pidx = 0; pidx < ndev->peer_cnt; pidx++) {
+		if (idt_ntb_peer_link_is_up(ndev, pidx))
+			status |= ((u64)1 << pidx);
+	}
+
+	return status;
+}
+
+/*
+ * idt_ntb_link_enable() - enable local port ntb link (NTB API callback)
+ * @ntb:	NTB device context.
+ * @max_speed:	The maximum link speed expressed as PCIe generation number.
+ * @max_width:	The maximum link width expressed as the number of PCIe lanes.
+ *
+ * Enable just local NTB link. PCIe link parameters are ignored.
+ *
+ * Return: always zero.
+ */
+static int idt_ntb_link_enable(struct ntb_dev *ntb, enum ntb_speed speed,
+			       enum ntb_width width)
+{
+	struct idt_ntb_dev *ndev = to_ndev_ntb(ntb);
+
+	/* Just enable the local NTB link */
+	idt_ntb_local_link_enable(ndev);
+
+	dev_dbg(&ndev->ntb.pdev->dev, "Local NTB link enabled");
+
+	return 0;
+}
+
+/*
+ * idt_ntb_link_disable() - disable local port ntb link (NTB API callback)
+ * @ntb:	NTB device context.
+ *
+ * Disable just local NTB link.
+ *
+ * Return: always zero.
+ */
+static int idt_ntb_link_disable(struct ntb_dev *ntb)
+{
+	struct idt_ntb_dev *ndev = to_ndev_ntb(ntb);
+
+	/* Just disable the local NTB link */
+	idt_ntb_local_link_disable(ndev);
+
+	dev_dbg(&ndev->ntb.pdev->dev, "Local NTB link disabled");
+
+	return 0;
+}
+
+/*=============================================================================
+ *                         4. Memory Window operations
+ *
+ *    IDT PCIe-switches have two types of memory windows: MWs with direct
+ * address translation and MWs with LUT based translation. The first type of
+ * MWs is simple map of corresponding BAR address space to a memory space
+ * of specified target port. So it implemets just ont-to-one mapping. Lookup
+ * table in its turn can map one BAR address space to up to 24 different
+ * memory spaces of different ports.
+ *    NT-functions BARs can be turned on to implement either direct or lookup
+ * table based address translations, so:
+ * BAR0 - NT configuration registers space/direct address translation
+ * BAR1 - direct address translation/upper address of BAR0x64
+ * BAR2 - direct address translation/Lookup table with either 12 or 24 entries
+ * BAR3 - direct address translation/upper address of BAR2x64
+ * BAR4 - direct address translation/Lookup table with either 12 or 24 entries
+ * BAR5 - direct address translation/upper address of BAR4x64
+ *    Additionally BAR2 and BAR4 can't have 24-entries LUT enabled at the same
+ * time. Since the BARs setup can be rather complicated this driver implements
+ * a scanning algorithm to have all the possible memory windows configuration
+ * covered.
+ *
+ * NOTE 1 BAR setup must be done before Linux kernel enumerated NT-function
+ * of any port, so this driver would have memory windows configurations fixed.
+ * In this way all initializations must be performed either by platform BIOS
+ * or using EEPROM connected to IDT PCIe-switch master SMBus.
+ *
+ * NOTE 2 This driver expects BAR0 mapping NT-function configuration space.
+ * Easy calculation can give us an upper boundary of 29 possible memory windows
+ * per each NT-function if all the BARs are of 32bit type.
+ *=============================================================================
+ */
+
+/*
+ * idt_get_mw_count() - get memory window count
+ * @mw_type:	Memory window type
+ *
+ * Return: number of memory windows with respect to the BAR type
+ */
+static inline unsigned char idt_get_mw_count(enum idt_mw_type mw_type)
+{
+	switch (mw_type) {
+	case IDT_MW_DIR:
+		return 1;
+	case IDT_MW_LUT12:
+		return 12;
+	case IDT_MW_LUT24:
+		return 24;
+	default:
+		break;
+	}
+
+	return 0;
+}
+
+/*
+ * idt_get_mw_name() - get memory window name
+ * @mw_type:	Memory window type
+ *
+ * Return: pointer to a string with name
+ */
+static inline char *idt_get_mw_name(enum idt_mw_type mw_type)
+{
+	switch (mw_type) {
+	case IDT_MW_DIR:
+		return "DIR  ";
+	case IDT_MW_LUT12:
+		return "LUT12";
+	case IDT_MW_LUT24:
+		return "LUT24";
+	default:
+		break;
+	}
+
+	return "unknown";
+}
+
+/*
+ * idt_scan_mws() - scan memory windows of the port
+ * @ndev:	IDT NTB hardware driver descriptor
+ * @port:	Port to get number of memory windows for
+ * @mw_cnt:	Out - number of memory windows
+ *
+ * It walks over BAR setup registers of the specified port and determines
+ * the memory windows parameters if any activated.
+ *
+ * Return: array of memory windows
+ */
+static struct idt_mw_cfg *idt_scan_mws(struct idt_ntb_dev *ndev, int port,
+				       unsigned char *mw_cnt)
+{
+	struct idt_mw_cfg mws[IDT_MAX_NR_MWS], *ret_mws;
+	const struct idt_ntb_bar *bars;
+	enum idt_mw_type mw_type;
+	unsigned char widx, bidx, en_cnt;
+	bool bar_64bit = false;
+	int aprt_size;
+	u32 data;
+
+	/* Retrieve the array of the BARs registers */
+	bars = portdata_tbl[port].bars;
+
+	/* Scan all the BARs belonging to the port */
+	*mw_cnt = 0;
+	for (bidx = 0; bidx < IDT_BAR_CNT; bidx += 1 + bar_64bit) {
+		/* Read BARSETUP register value */
+		data = idt_sw_read(ndev, bars[bidx].setup);
+
+		/* Skip disabled BARs */
+		if (!(data & IDT_BARSETUP_EN)) {
+			bar_64bit = false;
+			continue;
+		}
+
+		/* Skip next BARSETUP if current one has 64bit addressing */
+		bar_64bit = IS_FLD_SET(BARSETUP_TYPE, data, 64);
+
+		/* Skip configuration space mapping BARs */
+		if (data & IDT_BARSETUP_MODE_CFG)
+			continue;
+
+		/* Retrieve MW type/entries count and aperture size */
+		mw_type = GET_FIELD(BARSETUP_ATRAN, data);
+		en_cnt = idt_get_mw_count(mw_type);
+		aprt_size = (u64)1 << GET_FIELD(BARSETUP_SIZE, data);
+
+		/* Save configurations of all available memory windows */
+		for (widx = 0; widx < en_cnt; widx++, (*mw_cnt)++) {
+			/*
+			 * IDT can expose a limited number of MWs, so it's bug
+			 * to have more than the driver expects
+			 */
+			if (*mw_cnt >= IDT_MAX_NR_MWS)
+				return ERR_PTR(-EINVAL);
+
+			/* Save basic MW info */
+			mws[*mw_cnt].type = mw_type;
+			mws[*mw_cnt].bar = bidx;
+			mws[*mw_cnt].idx = widx;
+			/* It's always DWORD aligned */
+			mws[*mw_cnt].addr_align = IDT_TRANS_ALIGN;
+			/* DIR and LUT approachs differently configure MWs */
+			if (mw_type == IDT_MW_DIR)
+				mws[*mw_cnt].size_max = aprt_size;
+			else if (mw_type == IDT_MW_LUT12)
+				mws[*mw_cnt].size_max = aprt_size / 16;
+			else
+				mws[*mw_cnt].size_max = aprt_size / 32;
+			mws[*mw_cnt].size_align = (mw_type == IDT_MW_DIR) ?
+				IDT_DIR_SIZE_ALIGN : mws[*mw_cnt].size_max;
+		}
+	}
+
+	/* Allocate memory for memory window descriptors */
+	ret_mws = devm_kcalloc(&ndev->ntb.pdev->dev, *mw_cnt,
+				sizeof(*ret_mws), GFP_KERNEL);
+	if (IS_ERR_OR_NULL(ret_mws))
+		return ERR_PTR(-ENOMEM);
+
+	/* Copy the info of detected memory windows */
+	memcpy(ret_mws, mws, (*mw_cnt)*sizeof(*ret_mws));
+
+	return ret_mws;
+}
+
+/*
+ * idt_init_mws() - initialize memory windows subsystem
+ * @ndev:	IDT NTB hardware driver descriptor
+ *
+ * Scan BAR setup registers of local and peer ports to determine the
+ * outbound and inbound memory windows parameters
+ *
+ * Return: zero on success, otherwise a negative error number
+ */
+static int idt_init_mws(struct idt_ntb_dev *ndev)
+{
+	struct idt_ntb_peer *peer;
+	unsigned char pidx;
+
+	/* Scan memory windows of the local port */
+	ndev->mws = idt_scan_mws(ndev, ndev->port, &ndev->mw_cnt);
+	if (IS_ERR(ndev->mws)) {
+		dev_err(&ndev->ntb.pdev->dev,
+			"Failed to scan mws of local port %hhu", ndev->port);
+		return PTR_ERR(ndev->mws);
+	}
+
+	/* Scan memory windows of the peer ports */
+	for (pidx = 0; pidx < ndev->peer_cnt; pidx++) {
+		peer = &ndev->peers[pidx];
+		peer->mws = idt_scan_mws(ndev, peer->port, &peer->mw_cnt);
+		if (IS_ERR(peer->mws)) {
+			dev_err(&ndev->ntb.pdev->dev,
+				"Failed to scan mws of port %hhu", peer->port);
+			return PTR_ERR(peer->mws);
+		}
+	}
+
+	/* Initialize spin locker of the LUT registers */
+	spin_lock_init(&ndev->lut_lock);
+
+	dev_dbg(&ndev->ntb.pdev->dev, "Outbound and inbound MWs initialized");
+
+	return 0;
+}
+
+/*
+ * idt_ntb_mw_count() - number of inbound memory windows (NTB API callback)
+ * @ntb:	NTB device context.
+ * @pidx:	Port index of peer device.
+ *
+ * The value is returned for the specified peer, so generally speaking it can
+ * be different for different port depending on the IDT PCIe-switch
+ * initialization.
+ *
+ * Return: the number of memory windows.
+ */
+static int idt_ntb_mw_count(struct ntb_dev *ntb, int pidx)
+{
+	struct idt_ntb_dev *ndev = to_ndev_ntb(ntb);
+
+	if (pidx < 0 || ndev->peer_cnt <= pidx)
+		return -EINVAL;
+
+	return ndev->peers[pidx].mw_cnt;
+}
+
+/*
+ * idt_ntb_mw_get_align() - inbound memory window parameters (NTB API callback)
+ * @ntb:	NTB device context.
+ * @pidx:	Port index of peer device.
+ * @widx:	Memory window index.
+ * @addr_align:	OUT - the base alignment for translating the memory window
+ * @size_align:	OUT - the size alignment for translating the memory window
+ * @size_max:	OUT - the maximum size of the memory window
+ *
+ * The peer memory window parameters have already been determined, so just
+ * return the corresponding values, which mustn't change within session.
+ *
+ * Return: Zero on success, otherwise a negative error number.
+ */
+static int idt_ntb_mw_get_align(struct ntb_dev *ntb, int pidx, int widx,
+				resource_size_t *addr_align,
+				resource_size_t *size_align,
+				resource_size_t *size_max)
+{
+	struct idt_ntb_dev *ndev = to_ndev_ntb(ntb);
+	struct idt_ntb_peer *peer;
+
+	if (pidx < 0 || ndev->peer_cnt <= pidx)
+		return -EINVAL;
+
+	peer = &ndev->peers[pidx];
+
+	if (widx < 0 || peer->mw_cnt <= widx)
+		return -EINVAL;
+
+	if (addr_align != NULL)
+		*addr_align = peer->mws[widx].addr_align;
+
+	if (size_align != NULL)
+		*size_align = peer->mws[widx].size_align;
+
+	if (size_max != NULL)
+		*size_max = peer->mws[widx].size_max;
+
+	return 0;
+}
+
+/*
+ * idt_ntb_peer_mw_count() - number of outbound memory windows
+ *			     (NTB API callback)
+ * @ntb:	NTB device context.
+ *
+ * Outbound memory windows parameters have been determined based on the
+ * BAR setup registers value, which are mostly constants within one session.
+ *
+ * Return: the number of memory windows.
+ */
+static int idt_ntb_peer_mw_count(struct ntb_dev *ntb)
+{
+	struct idt_ntb_dev *ndev = to_ndev_ntb(ntb);
+
+	return ndev->mw_cnt;
+}
+
+/*
+ * idt_ntb_peer_mw_get_addr() - get map address of an outbound memory window
+ *				(NTB API callback)
+ * @ntb:	NTB device context.
+ * @widx:	Memory window index (within ntb_peer_mw_count() return value).
+ * @base:	OUT - the base address of mapping region.
+ * @size:	OUT - the size of mapping region.
+ *
+ * Return just parameters of BAR resources mapping. Size reflects just the size
+ * of the resource
+ *
+ * Return: Zero on success, otherwise a negative error number.
+ */
+static int idt_ntb_peer_mw_get_addr(struct ntb_dev *ntb, int widx,
+				    phys_addr_t *base, resource_size_t *size)
+{
+	struct idt_ntb_dev *ndev = to_ndev_ntb(ntb);
+
+	if (widx < 0 || ndev->mw_cnt <= widx)
+		return -EINVAL;
+
+	/* Mapping address is just properly shifted BAR resource start */
+	if (base != NULL)
+		*base = pci_resource_start(ntb->pdev, ndev->mws[widx].bar) +
+			ndev->mws[widx].idx * ndev->mws[widx].size_max;
+
+	/* Mapping size has already been calculated at MWs scanning */
+	if (size != NULL)
+		*size = ndev->mws[widx].size_max;
+
+	return 0;
+}
+
+/*
+ * idt_ntb_peer_mw_set_trans() - set a translation address of a memory window
+ *				 (NTB API callback)
+ * @ntb:	NTB device context.
+ * @pidx:	Port index of peer device the translation address received from.
+ * @widx:	Memory window index.
+ * @addr:	The dma address of the shared memory to access.
+ * @size:	The size of the shared memory to access.
+ *
+ * The Direct address translation and LUT base translation is initialized a
+ * bit differenet. Although the parameters restriction are now determined by
+ * the same code.
+ *
+ * Return: Zero on success, otherwise an error number.
+ */
+static int idt_ntb_peer_mw_set_trans(struct ntb_dev *ntb, int pidx, int widx,
+				     u64 addr, resource_size_t size)
+{
+	struct idt_ntb_dev *ndev = to_ndev_ntb(ntb);
+	struct idt_mw_cfg *mw_cfg;
+	u32 data = 0, lutoff = 0;
+
+	if (pidx < 0 || ndev->peer_cnt <= pidx)
+		return -EINVAL;
+
+	if (widx < 0 || ndev->mw_cnt <= widx)
+		return -EINVAL;
+
+	/*
+	 * Retrieve the memory window config to make sure the passed arguments
+	 * fit it restrictions
+	 */
+	mw_cfg = &ndev->mws[widx];
+	if (!IS_ALIGNED(addr, mw_cfg->addr_align))
+		return -EINVAL;
+	if (!IS_ALIGNED(size, mw_cfg->size_align) || size > mw_cfg->size_max)
+		return -EINVAL;
+
+	/* DIR and LUT based translations are initialized differently */
+	if (mw_cfg->type == IDT_MW_DIR) {
+		const struct idt_ntb_bar *bar = &ntdata_tbl.bars[mw_cfg->bar];
+		u64 limit;
+		/* Set destination partition of translation */
+		data = idt_nt_read(ndev, bar->setup);
+		data = SET_FIELD(BARSETUP_TPART, data, ndev->peers[pidx].part);
+		idt_nt_write(ndev, bar->setup, data);
+		/* Set translation base address */
+		idt_nt_write(ndev, bar->ltbase, (u32)addr);
+		idt_nt_write(ndev, bar->utbase, (u32)(addr >> 32));
+		/* Set the custom BAR aperture limit */
+		limit = pci_resource_start(ntb->pdev, mw_cfg->bar) + size;
+		idt_nt_write(ndev, bar->limit, (u32)limit);
+		if (IS_FLD_SET(BARSETUP_TYPE, data, 64))
+			idt_nt_write(ndev, (bar + 1)->limit, (limit >> 32));
+	} else {
+		unsigned long irqflags;
+		/* Initialize corresponding LUT entry */
+		lutoff = SET_FIELD(LUTOFFSET_INDEX, 0, mw_cfg->idx) |
+			 SET_FIELD(LUTOFFSET_BAR, 0, mw_cfg->bar);
+		data = SET_FIELD(LUTUDATA_PART, 0, ndev->peers[pidx].part) |
+			IDT_LUTUDATA_VALID;
+		spin_lock_irqsave(&ndev->lut_lock, irqflags);
+		idt_nt_write(ndev, IDT_NT_LUTOFFSET, lutoff);
+		idt_nt_write(ndev, IDT_NT_LUTLDATA, (u32)addr);
+		idt_nt_write(ndev, IDT_NT_LUTMDATA, (u32)(addr >> 32));
+		idt_nt_write(ndev, IDT_NT_LUTUDATA, data);
+		mmiowb();
+		spin_unlock_irqrestore(&ndev->lut_lock, irqflags);
+		/* Limit address isn't specified since size is fixed for LUT */
+	}
+
+	return 0;
+}
+
+/*
+ * idt_ntb_peer_mw_clear_trans() - clear the outbound MW translation address
+ *				   (NTB API callback)
+ * @ntb:	NTB device context.
+ * @pidx:	Port index of peer device.
+ * @widx:	Memory window index.
+ *
+ * It effectively disables the translation over the specified outbound MW.
+ *
+ * Return: Zero on success, otherwise an error number.
+ */
+static int idt_ntb_peer_mw_clear_trans(struct ntb_dev *ntb, int pidx,
+					int widx)
+{
+	struct idt_ntb_dev *ndev = to_ndev_ntb(ntb);
+	struct idt_mw_cfg *mw_cfg;
+
+	if (pidx < 0 || ndev->peer_cnt <= pidx)
+		return -EINVAL;
+
+	if (widx < 0 || ndev->mw_cnt <= widx)
+		return -EINVAL;
+
+	mw_cfg = &ndev->mws[widx];
+
+	/* DIR and LUT based translations are initialized differently */
+	if (mw_cfg->type == IDT_MW_DIR) {
+		const struct idt_ntb_bar *bar = &ntdata_tbl.bars[mw_cfg->bar];
+		u32 data;
+		/* Read BARSETUP to check BAR type */
+		data = idt_nt_read(ndev, bar->setup);
+		/* Disable translation by specifying zero BAR limit */
+		idt_nt_write(ndev, bar->limit, 0);
+		if (IS_FLD_SET(BARSETUP_TYPE, data, 64))
+			idt_nt_write(ndev, (bar + 1)->limit, 0);
+	} else {
+		unsigned long irqflags;
+		u32 lutoff;
+		/* Clear the corresponding LUT entry up */
+		lutoff = SET_FIELD(LUTOFFSET_INDEX, 0, mw_cfg->idx) |
+			 SET_FIELD(LUTOFFSET_BAR, 0, mw_cfg->bar);
+		spin_lock_irqsave(&ndev->lut_lock, irqflags);
+		idt_nt_write(ndev, IDT_NT_LUTOFFSET, lutoff);
+		idt_nt_write(ndev, IDT_NT_LUTLDATA, 0);
+		idt_nt_write(ndev, IDT_NT_LUTMDATA, 0);
+		idt_nt_write(ndev, IDT_NT_LUTUDATA, 0);
+		mmiowb();
+		spin_unlock_irqrestore(&ndev->lut_lock, irqflags);
+	}
+
+	return 0;
+}
+
+/*=============================================================================
+ *                          5. Doorbell operations
+ *
+ *    Doorbell functionality of IDT PCIe-switches is pretty unusual. First of
+ * all there is global doorbell register which state can by changed by any
+ * NT-function of the IDT device in accordance with global permissions. These
+ * permissions configs are not supported by NTB API, so it must be done by
+ * either BIOS or EEPROM settings. In the same way the state of the global
+ * doorbell is reflected to the NT-functions local inbound doorbell registers.
+ * It can lead to situations when client driver sets some peer doorbell bits
+ * and get them bounced back to local inbound doorbell if permissions are
+ * granted.
+ *    Secondly there is just one IRQ vector for Doorbell, Message, Temperature
+ * and Switch events, so if client driver left any of Doorbell bits set and
+ * some other event occurred, the driver will be notified of Doorbell event
+ * again.
+ *=============================================================================
+ */
+
+/*
+ * idt_db_isr() - doorbell event ISR
+ * @ndev:	IDT NTB hardware driver descriptor
+ * @ntint_sts:	NT-function interrupt status
+ *
+ * Doorbell event happans when DBELL bit of NTINTSTS switches from 0 to 1.
+ * It happens only when unmasked doorbell bits are set to ones on completely
+ * zeroed doorbell register.
+ * The method is called from PCIe ISR bottom-half routine.
+ */
+static void idt_db_isr(struct idt_ntb_dev *ndev, u32 ntint_sts)
+{
+	/*
+	 * Doorbell IRQ status will be cleaned only when client
+	 * driver unsets all the doorbell bits.
+	 */
+	dev_dbg(&ndev->ntb.pdev->dev, "DB IRQ detected %#08x", ntint_sts);
+
+	/* Notify the client driver of possible doorbell state change */
+	ntb_db_event(&ndev->ntb, 0);
+}
+
+/*
+ * idt_ntb_db_valid_mask() - get a mask of doorbell bits supported by the ntb
+ *			     (NTB API callback)
+ * @ntb:	NTB device context.
+ *
+ * IDT PCIe-switches expose just one Doorbell register of DWORD size.
+ *
+ * Return: A mask of doorbell bits supported by the ntb.
+ */
+static u64 idt_ntb_db_valid_mask(struct ntb_dev *ntb)
+{
+	return IDT_DBELL_MASK;
+}
+
+/*
+ * idt_ntb_db_read() - read the local doorbell register (NTB API callback)
+ * @ntb:	NTB device context.
+ *
+ * There is just on inbound doorbell register of each NT-function, so
+ * this method return it value.
+ *
+ * Return: The bits currently set in the local doorbell register.
+ */
+static u64 idt_ntb_db_read(struct ntb_dev *ntb)
+{
+	struct idt_ntb_dev *ndev = to_ndev_ntb(ntb);
+
+	return idt_nt_read(ndev, IDT_NT_INDBELLSTS);
+}
+
+/*
+ * idt_ntb_db_clear() - clear bits in the local doorbell register
+ *			(NTB API callback)
+ * @ntb:	NTB device context.
+ * @db_bits:	Doorbell bits to clear.
+ *
+ * Clear bits of inbound doorbell register by writing ones to it.
+ *
+ * NOTE! Invalid bits are always considered cleared so it's not an error
+ * to clear them over.
+ *
+ * Return: always zero as success.
+ */
+static int idt_ntb_db_clear(struct ntb_dev *ntb, u64 db_bits)
+{
+	struct idt_ntb_dev *ndev = to_ndev_ntb(ntb);
+
+	idt_nt_write(ndev, IDT_NT_INDBELLSTS, (u32)db_bits);
+
+	return 0;
+}
+
+/*
+ * idt_ntb_db_read_mask() - read the local doorbell mask (NTB API callback)
+ * @ntb:	NTB device context.
+ *
+ * Each inbound doorbell bit can be masked from generating IRQ by setting
+ * the corresponding bit in inbound doorbell mask. So this method returns
+ * the value of the register.
+ *
+ * Return: The bits currently set in the local doorbell mask register.
+ */
+static u64 idt_ntb_db_read_mask(struct ntb_dev *ntb)
+{
+	struct idt_ntb_dev *ndev = to_ndev_ntb(ntb);
+
+	return idt_nt_read(ndev, IDT_NT_INDBELLMSK);
+}
+
+/*
+ * idt_ntb_db_set_mask() - set bits in the local doorbell mask
+ *			   (NTB API callback)
+ * @ntb:	NTB device context.
+ * @db_bits:	Doorbell mask bits to set.
+ *
+ * The inbound doorbell register mask value must be read, then OR'ed with
+ * passed field and only then set back.
+ *
+ * Return: zero on success, negative error if invalid argument passed.
+ */
+static int idt_ntb_db_set_mask(struct ntb_dev *ntb, u64 db_bits)
+{
+	struct idt_ntb_dev *ndev = to_ndev_ntb(ntb);
+
+	return idt_reg_set_bits(ndev, IDT_NT_INDBELLMSK, &ndev->db_mask_lock,
+				IDT_DBELL_MASK, db_bits);
+}
+
+/*
+ * idt_ntb_db_clear_mask() - clear bits in the local doorbell mask
+ *			     (NTB API callback)
+ * @ntb:	NTB device context.
+ * @db_bits:	Doorbell bits to clear.
+ *
+ * The method just clears the set bits up in accordance with the passed
+ * bitfield. IDT PCIe-switch shall generate an interrupt if there hasn't
+ * been any unmasked bit set before current unmasking. Otherwise IRQ won't
+ * be generated since there is only one IRQ vector for all doorbells.
+ *
+ * Return: always zero as success
+ */
+static int idt_ntb_db_clear_mask(struct ntb_dev *ntb, u64 db_bits)
+{
+	struct idt_ntb_dev *ndev = to_ndev_ntb(ntb);
+
+	idt_reg_clear_bits(ndev, IDT_NT_INDBELLMSK, &ndev->db_mask_lock,
+			   db_bits);
+
+	return 0;
+}
+
+/*
+ * idt_ntb_peer_db_set() - set bits in the peer doorbell register
+ *			   (NTB API callback)
+ * @ntb:	NTB device context.
+ * @db_bits:	Doorbell bits to set.
+ *
+ * IDT PCIe-switches exposes local outbound doorbell register to change peer
+ * inbound doorbell register state.
+ *
+ * Return: zero on success, negative error if invalid argument passed.
+ */
+static int idt_ntb_peer_db_set(struct ntb_dev *ntb, u64 db_bits)
+{
+	struct idt_ntb_dev *ndev = to_ndev_ntb(ntb);
+
+	if (db_bits & ~(u64)IDT_DBELL_MASK)
+		return -EINVAL;
+
+	idt_nt_write(ndev, IDT_NT_OUTDBELLSET, (u32)db_bits);
+	return 0;
+}
+
+/*=============================================================================
+ *                          6. Messaging operations
+ *
+ *    Each NT-function of IDT PCIe-switch has four inbound and four outbound
+ * message registers. Each outbound message register can be connected to one or
+ * even more than one peer inbound message registers by setting global
+ * configurations. Since NTB API permits one-on-one message registers mapping
+ * only, the driver acts in according with that restriction.
+ *=============================================================================
+ */
+
+/*
+ * idt_init_msg() - initialize messaging interface
+ * @ndev:	IDT NTB hardware driver descriptor
+ *
+ * Just initialize the message registers routing tables locker.
+ */
+static void idt_init_msg(struct idt_ntb_dev *ndev)
+{
+	unsigned char midx;
+
+	/* Init the messages routing table lockers */
+	for (midx = 0; midx < IDT_MSG_CNT; midx++)
+		spin_lock_init(&ndev->msg_locks[midx]);
+
+	dev_dbg(&ndev->ntb.pdev->dev, "NTB Messaging initialized");
+}
+
+/*
+ * idt_msg_isr() - message event ISR
+ * @ndev:	IDT NTB hardware driver descriptor
+ * @ntint_sts:	NT-function interrupt status
+ *
+ * Message event happens when MSG bit of NTINTSTS switches from 0 to 1.
+ * It happens only when unmasked message status bits are set to ones on
+ * completely zeroed message status register.
+ * The method is called from PCIe ISR bottom-half routine.
+ */
+static void idt_msg_isr(struct idt_ntb_dev *ndev, u32 ntint_sts)
+{
+	/*
+	 * Message IRQ status will be cleaned only when client
+	 * driver unsets all the message status bits.
+	 */
+	dev_dbg(&ndev->ntb.pdev->dev, "Message IRQ detected %#08x", ntint_sts);
+
+	/* Notify the client driver of possible message status change */
+	ntb_msg_event(&ndev->ntb);
+}
+
+/*
+ * idt_ntb_msg_count() - get the number of message registers (NTB API callback)
+ * @ntb:	NTB device context.
+ *
+ * IDT PCIe-switches support four message registers.
+ *
+ * Return: the number of message registers.
+ */
+static int idt_ntb_msg_count(struct ntb_dev *ntb)
+{
+	return IDT_MSG_CNT;
+}
+
+/*
+ * idt_ntb_msg_inbits() - get a bitfield of inbound message registers status
+ *			  (NTB API callback)
+ * @ntb:	NTB device context.
+ *
+ * NT message status register is shared between inbound and outbound message
+ * registers status
+ *
+ * Return: bitfield of inbound message registers.
+ */
+static u64 idt_ntb_msg_inbits(struct ntb_dev *ntb)
+{
+	return (u64)IDT_INMSG_MASK;
+}
+
+/*
+ * idt_ntb_msg_outbits() - get a bitfield of outbound message registers status
+ *			  (NTB API callback)
+ * @ntb:	NTB device context.
+ *
+ * NT message status register is shared between inbound and outbound message
+ * registers status
+ *
+ * Return: bitfield of outbound message registers.
+ */
+static u64 idt_ntb_msg_outbits(struct ntb_dev *ntb)
+{
+	return (u64)IDT_OUTMSG_MASK;
+}
+
+/*
+ * idt_ntb_msg_read_sts() - read the message registers status (NTB API callback)
+ * @ntb:	NTB device context.
+ *
+ * IDT PCIe-switches expose message status registers to notify drivers of
+ * incoming data and failures in case if peer message register isn't freed.
+ *
+ * Return: status bits of message registers
+ */
+static u64 idt_ntb_msg_read_sts(struct ntb_dev *ntb)
+{
+	struct idt_ntb_dev *ndev = to_ndev_ntb(ntb);
+
+	return idt_nt_read(ndev, IDT_NT_MSGSTS);
+}
+
+/*
+ * idt_ntb_msg_clear_sts() - clear status bits of message registers
+ *			     (NTB API callback)
+ * @ntb:	NTB device context.
+ * @sts_bits:	Status bits to clear.
+ *
+ * Clear bits in the status register by writing ones.
+ *
+ * NOTE! Invalid bits are always considered cleared so it's not an error
+ * to clear them over.
+ *
+ * Return: always zero as success.
+ */
+static int idt_ntb_msg_clear_sts(struct ntb_dev *ntb, u64 sts_bits)
+{
+	struct idt_ntb_dev *ndev = to_ndev_ntb(ntb);
+
+	idt_nt_write(ndev, IDT_NT_MSGSTS, sts_bits);
+
+	return 0;
+}
+
+/*
+ * idt_ntb_msg_set_mask() - set mask of message register status bits
+ *			    (NTB API callback)
+ * @ntb:	NTB device context.
+ * @mask_bits:	Mask bits.
+ *
+ * Mask the message status bits from raising an IRQ.
+ *
+ * Return: zero on success, negative error if invalid argument passed.
+ */
+static int idt_ntb_msg_set_mask(struct ntb_dev *ntb, u64 mask_bits)
+{
+	struct idt_ntb_dev *ndev = to_ndev_ntb(ntb);
+
+	return idt_reg_set_bits(ndev, IDT_NT_MSGSTSMSK, &ndev->msg_mask_lock,
+				IDT_MSG_MASK, mask_bits);
+}
+
+/*
+ * idt_ntb_msg_clear_mask() - clear message registers mask
+ *			      (NTB API callback)
+ * @ntb:	NTB device context.
+ * @mask_bits:	Mask bits.
+ *
+ * Clear mask of message status bits IRQs.
+ *
+ * Return: always zero as success.
+ */
+static int idt_ntb_msg_clear_mask(struct ntb_dev *ntb, u64 mask_bits)
+{
+	struct idt_ntb_dev *ndev = to_ndev_ntb(ntb);
+
+	idt_reg_clear_bits(ndev, IDT_NT_MSGSTSMSK, &ndev->msg_mask_lock,
+			   mask_bits);
+
+	return 0;
+}
+
+/*
+ * idt_ntb_msg_read() - read message register with specified index
+ *			(NTB API callback)
+ * @ntb:	NTB device context.
+ * @midx:	Message register index
+ * @pidx:	OUT - Port index of peer device a message retrieved from
+ * @msg:	OUT - Data
+ *
+ * Read data from the specified message register and source register.
+ *
+ * Return: zero on success, negative error if invalid argument passed.
+ */
+static int idt_ntb_msg_read(struct ntb_dev *ntb, int midx, int *pidx, u32 *msg)
+{
+	struct idt_ntb_dev *ndev = to_ndev_ntb(ntb);
+
+	if (midx < 0 || IDT_MSG_CNT <= midx)
+		return -EINVAL;
+
+	/* Retrieve source port index of the message */
+	if (pidx != NULL) {
+		u32 srcpart;
+
+		srcpart = idt_nt_read(ndev, ntdata_tbl.msgs[midx].src);
+		*pidx = ndev->part_idx_map[srcpart];
+
+		/* Sanity check partition index (for initial case) */
+		if (*pidx == -EINVAL)
+			*pidx = 0;
+	}
+
+	/* Retrieve data of the corresponding message register */
+	if (msg != NULL)
+		*msg = idt_nt_read(ndev, ntdata_tbl.msgs[midx].in);
+
+	return 0;
+}
+
+/*
+ * idt_ntb_msg_write() - write data to the specified message register
+ *			 (NTB API callback)
+ * @ntb:	NTB device context.
+ * @midx:	Message register index
+ * @pidx:	Port index of peer device a message being sent to
+ * @msg:	Data to send
+ *
+ * Just try to send data to a peer. Message status register should be
+ * checked by client driver.
+ *
+ * Return: zero on success, negative error if invalid argument passed.
+ */
+static int idt_ntb_msg_write(struct ntb_dev *ntb, int midx, int pidx, u32 msg)
+{
+	struct idt_ntb_dev *ndev = to_ndev_ntb(ntb);
+	unsigned long irqflags;
+	u32 swpmsgctl = 0;
+
+	if (midx < 0 || IDT_MSG_CNT <= midx)
+		return -EINVAL;
+
+	if (pidx < 0 || ndev->peer_cnt <= pidx)
+		return -EINVAL;
+
+	/* Collect the routing information */
+	swpmsgctl = SET_FIELD(SWPxMSGCTL_REG, 0, midx) |
+		    SET_FIELD(SWPxMSGCTL_PART, 0, ndev->peers[pidx].part);
+
+	/* Lock the messages routing table of the specified register */
+	spin_lock_irqsave(&ndev->msg_locks[midx], irqflags);
+	/* Set the route and send the data */
+	idt_sw_write(ndev, partdata_tbl[ndev->part].msgctl[midx], swpmsgctl);
+	idt_nt_write(ndev, ntdata_tbl.msgs[midx].out, msg);
+	mmiowb();
+	/* Unlock the messages routing table */
+	spin_unlock_irqrestore(&ndev->msg_locks[midx], irqflags);
+
+	/* Client driver shall check the status register */
+	return 0;
+}
+
+/*=============================================================================
+ *                      7. Temperature sensor operations
+ *
+ *    IDT PCIe-switch has an embedded temperature sensor, which can be used to
+ * warn a user-space of possible chip overheating. Since workload temperature
+ * can be different on different platforms, temperature thresholds as well as
+ * general sensor settings must be setup in the framework of BIOS/EEPROM
+ * initializations. It includes the actual sensor enabling as well.
+ *=============================================================================
+ */
+
+/*
+ * idt_read_temp() - read temperature from chip sensor
+ * @ntb:	NTB device context.
+ * @val:	OUT - integer value of temperature
+ * @frac:	OUT - fraction
+ */
+static void idt_read_temp(struct idt_ntb_dev *ndev, unsigned char *val,
+			  unsigned char *frac)
+{
+	u32 data;
+
+	/* Read the data from TEMP field of the TMPSTS register */
+	data = idt_sw_read(ndev, IDT_SW_TMPSTS);
+	data = GET_FIELD(TMPSTS_TEMP, data);
+	/* TEMP field has one fractional bit and seven integer bits */
+	*val = data >> 1;
+	*frac = ((data & 0x1) ? 5 : 0);
+}
+
+/*
+ * idt_temp_isr() - temperature sensor alarm events ISR
+ * @ndev:	IDT NTB hardware driver descriptor
+ * @ntint_sts:	NT-function interrupt status
+ *
+ * It handles events of temperature crossing alarm thresholds. Since reading
+ * of TMPALARM register clears it up, the function doesn't analyze the
+ * read value, instead the current temperature value just warningly printed to
+ * log.
+ * The method is called from PCIe ISR bottom-half routine.
+ */
+static void idt_temp_isr(struct idt_ntb_dev *ndev, u32 ntint_sts)
+{
+	unsigned char val, frac;
+
+	/* Read the current temperature value */
+	idt_read_temp(ndev, &val, &frac);
+
+	/* Read the temperature alarm to clean the alarm status out */
+	/*(void)idt_sw_read(ndev, IDT_SW_TMPALARM);*/
+
+	/* Clean the corresponding interrupt bit */
+	idt_nt_write(ndev, IDT_NT_NTINTSTS, IDT_NTINTSTS_TMPSENSOR);
+
+	dev_dbg(&ndev->ntb.pdev->dev,
+		"Temp sensor IRQ detected %#08x", ntint_sts);
+
+	/* Print temperature value to log */
+	dev_warn(&ndev->ntb.pdev->dev, "Temperature %hhu.%hhu", val, frac);
+}
+
+/*=============================================================================
+ *                           8. ISRs related operations
+ *
+ *    IDT PCIe-switch has strangely developed IRQ system. There is just one
+ * interrupt vector for doorbell and message registers. So the hardware driver
+ * can't determine actual source of IRQ if, for example, message event happened
+ * while any of unmasked doorbell is still set. The similar situation may be if
+ * switch or temperature sensor events pop up. The difference is that SEVENT
+ * and TMPSENSOR bits of NT interrupt status register can be cleaned by
+ * IRQ handler so a next interrupt request won't have false handling of
+ * corresponding events.
+ *    The hardware driver has only bottom-half handler of the IRQ, since if any
+ * of events happened the device won't raise it again before the last one is
+ * handled by clearing of corresponding NTINTSTS bit.
+ *=============================================================================
+ */
+
+static irqreturn_t idt_thread_isr(int irq, void *devid);
+
+/*
+ * idt_init_isr() - initialize PCIe interrupt handler
+ * @ndev:	IDT NTB hardware driver descriptor
+ *
+ * Return: zero on success, otherwise a negative error number.
+ */
+static int idt_init_isr(struct idt_ntb_dev *ndev)
+{
+	struct pci_dev *pdev = ndev->ntb.pdev;
+	u32 ntint_mask;
+	int ret;
+
+	/* Allocate just one interrupt vector for the ISR */
+	ret = pci_alloc_irq_vectors(pdev, 1, 1, PCI_IRQ_MSI | PCI_IRQ_LEGACY);
+	if (ret != 1) {
+		dev_err(&pdev->dev, "Failed to allocate IRQ vector");
+		return ret;
+	}
+
+	/* Retrieve the IRQ vector */
+	ret = pci_irq_vector(pdev, 0);
+	if (ret < 0) {
+		dev_err(&pdev->dev, "Failed to get IRQ vector");
+		goto err_free_vectors;
+	}
+
+	/* Set the IRQ handler */
+	ret = devm_request_threaded_irq(&pdev->dev, ret, NULL, idt_thread_isr,
+					IRQF_ONESHOT, NTB_IRQNAME, ndev);
+	if (ret != 0) {
+		dev_err(&pdev->dev, "Failed to set MSI IRQ handler, %d", ret);
+		goto err_free_vectors;
+	}
+
+	/* Unmask Message/Doorbell/SE/Temperature interrupts */
+	ntint_mask = idt_nt_read(ndev, IDT_NT_NTINTMSK) & ~IDT_NTINTMSK_ALL;
+	idt_nt_write(ndev, IDT_NT_NTINTMSK, ntint_mask);
+
+	/* From now on the interrupts are enabled */
+	dev_dbg(&pdev->dev, "NTB interrupts initialized");
+
+	return 0;
+
+err_free_vectors:
+	pci_free_irq_vectors(pdev);
+
+	return ret;
+}
+
+
+/*
+ * idt_deinit_ist() - deinitialize PCIe interrupt handler
+ * @ndev:	IDT NTB hardware driver descriptor
+ *
+ * Disable corresponding interrupts and free allocated IRQ vectors.
+ */
+static void idt_deinit_isr(struct idt_ntb_dev *ndev)
+{
+	struct pci_dev *pdev = ndev->ntb.pdev;
+	u32 ntint_mask;
+
+	/* Mask interrupts back */
+	ntint_mask = idt_nt_read(ndev, IDT_NT_NTINTMSK) | IDT_NTINTMSK_ALL;
+	idt_nt_write(ndev, IDT_NT_NTINTMSK, ntint_mask);
+
+	/* Manually free IRQ otherwise PCI free irq vectors will fail */
+	devm_free_irq(&pdev->dev, pci_irq_vector(pdev, 0), ndev);
+
+	/* Free allocated IRQ vectors */
+	pci_free_irq_vectors(pdev);
+
+	dev_dbg(&pdev->dev, "NTB interrupts deinitialized");
+}
+
+/*
+ * idt_thread_isr() - NT function interrupts handler
+ * @irq:	IRQ number
+ * @devid:	Custom buffer
+ *
+ * It reads current NT interrupts state register and handles all the event
+ * it declares.
+ * The method is bottom-half routine of actual default PCIe IRQ handler.
+ */
+static irqreturn_t idt_thread_isr(int irq, void *devid)
+{
+	struct idt_ntb_dev *ndev = devid;
+	bool handled = false;
+	u32 ntint_sts;
+
+	/* Read the NT interrupts status register */
+	ntint_sts = idt_nt_read(ndev, IDT_NT_NTINTSTS);
+
+	/* Handle messaging interrupts */
+	if (ntint_sts & IDT_NTINTSTS_MSG) {
+		idt_msg_isr(ndev, ntint_sts);
+		handled = true;
+	}
+
+	/* Handle doorbell interrupts */
+	if (ntint_sts & IDT_NTINTSTS_DBELL) {
+		idt_db_isr(ndev, ntint_sts);
+		handled = true;
+	}
+
+	/* Handle switch event interrupts */
+	if (ntint_sts & IDT_NTINTSTS_SEVENT) {
+		idt_se_isr(ndev, ntint_sts);
+		handled = true;
+	}
+
+	/* Handle temperature sensor interrupt */
+	if (ntint_sts & IDT_NTINTSTS_TMPSENSOR) {
+		idt_temp_isr(ndev, ntint_sts);
+		handled = true;
+	}
+
+	dev_dbg(&ndev->ntb.pdev->dev, "IDT IRQs 0x%08x handled", ntint_sts);
+
+	return handled ? IRQ_HANDLED : IRQ_NONE;
+}
+
+/*===========================================================================
+ *                     9. NTB hardware driver initialization
+ *===========================================================================
+ */
+
+/*
+ * NTB API operations
+ */
+static const struct ntb_dev_ops idt_ntb_ops = {
+	.port_number		= idt_ntb_port_number,
+	.peer_port_count	= idt_ntb_peer_port_count,
+	.peer_port_number	= idt_ntb_peer_port_number,
+	.peer_port_idx		= idt_ntb_peer_port_idx,
+	.link_is_up		= idt_ntb_link_is_up,
+	.link_enable		= idt_ntb_link_enable,
+	.link_disable		= idt_ntb_link_disable,
+	.mw_count		= idt_ntb_mw_count,
+	.mw_get_align		= idt_ntb_mw_get_align,
+	.peer_mw_count		= idt_ntb_peer_mw_count,
+	.peer_mw_get_addr	= idt_ntb_peer_mw_get_addr,
+	.peer_mw_set_trans	= idt_ntb_peer_mw_set_trans,
+	.peer_mw_clear_trans	= idt_ntb_peer_mw_clear_trans,
+	.db_valid_mask		= idt_ntb_db_valid_mask,
+	.db_read		= idt_ntb_db_read,
+	.db_clear		= idt_ntb_db_clear,
+	.db_read_mask		= idt_ntb_db_read_mask,
+	.db_set_mask		= idt_ntb_db_set_mask,
+	.db_clear_mask		= idt_ntb_db_clear_mask,
+	.peer_db_set		= idt_ntb_peer_db_set,
+	.msg_count		= idt_ntb_msg_count,
+	.msg_inbits		= idt_ntb_msg_inbits,
+	.msg_outbits		= idt_ntb_msg_outbits,
+	.msg_read_sts		= idt_ntb_msg_read_sts,
+	.msg_clear_sts		= idt_ntb_msg_clear_sts,
+	.msg_set_mask		= idt_ntb_msg_set_mask,
+	.msg_clear_mask		= idt_ntb_msg_clear_mask,
+	.msg_read		= idt_ntb_msg_read,
+	.msg_write		= idt_ntb_msg_write
+};
+
+/*
+ * idt_register_device() - register IDT NTB device
+ * @ndev:	IDT NTB hardware driver descriptor
+ *
+ * Return: zero on success, otherwise a negative error number.
+ */
+static int idt_register_device(struct idt_ntb_dev *ndev)
+{
+	int ret;
+
+	/* Initialize the rest of NTB device structure and register it */
+	ndev->ntb.ops = &idt_ntb_ops;
+	ndev->ntb.topo = NTB_TOPO_PRI;
+
+	ret = ntb_register_device(&ndev->ntb);
+	if (ret != 0) {
+		dev_err(&ndev->ntb.pdev->dev, "Failed to register NTB device");
+		return ret;
+	}
+
+	dev_dbg(&ndev->ntb.pdev->dev, "NTB device successfully registered");
+
+	return 0;
+}
+
+/*
+ * idt_unregister_device() - unregister IDT NTB device
+ * @ndev:	IDT NTB hardware driver descriptor
+ */
+static void idt_unregister_device(struct idt_ntb_dev *ndev)
+{
+	/* Just unregister the NTB device */
+	ntb_unregister_device(&ndev->ntb);
+
+	dev_dbg(&ndev->ntb.pdev->dev, "NTB device unregistered");
+}
+
+/*=============================================================================
+ *                        10. DebugFS node initialization
+ *=============================================================================
+ */
+
+static ssize_t idt_dbgfs_info_read(struct file *filp, char __user *ubuf,
+				   size_t count, loff_t *offp);
+
+/*
+ * Driver DebugFS info file operations
+ */
+static const struct file_operations idt_dbgfs_info_ops = {
+	.owner = THIS_MODULE,
+	.open = simple_open,
+	.read = idt_dbgfs_info_read
+};
+
+/*
+ * idt_dbgfs_info_read() - DebugFS read info node callback
+ * @file:	File node descriptor.
+ * @ubuf:	User-space buffer to put data to
+ * @count:	Size of the buffer
+ * @offp:	Offset within the buffer
+ */
+static ssize_t idt_dbgfs_info_read(struct file *filp, char __user *ubuf,
+				   size_t count, loff_t *offp)
+{
+	struct idt_ntb_dev *ndev = filp->private_data;
+	unsigned char temp, frac, idx, pidx, cnt;
+	ssize_t ret = 0, off = 0;
+	unsigned long irqflags;
+	enum ntb_speed speed;
+	enum ntb_width width;
+	char *strbuf;
+	size_t size;
+	u32 data;
+
+	/* Lets limit the buffer size the way the Intel/AMD drivers do */
+	size = min_t(size_t, count, 0x1000U);
+
+	/* Allocate the memory for the buffer */
+	strbuf = kmalloc(size, GFP_KERNEL);
+	if (strbuf == NULL)
+		return -ENOMEM;
+
+	/* Put the data into the string buffer */
+	off += scnprintf(strbuf + off, size - off,
+		"\n\t\tIDT NTB device Information:\n\n");
+
+	/* General local device configurations */
+	off += scnprintf(strbuf + off, size - off,
+		"Local Port %hhu, Partition %hhu\n", ndev->port, ndev->part);
+
+	/* Peer ports information */
+	off += scnprintf(strbuf + off, size - off, "Peers:\n");
+	for (idx = 0; idx < ndev->peer_cnt; idx++) {
+		off += scnprintf(strbuf + off, size - off,
+			"\t%hhu. Port %hhu, Partition %hhu\n",
+			idx, ndev->peers[idx].port, ndev->peers[idx].part);
+	}
+
+	/* Links status */
+	data = idt_ntb_link_is_up(&ndev->ntb, &speed, &width);
+	off += scnprintf(strbuf + off, size - off,
+		"NTB link status\t- 0x%08x, ", data);
+	off += scnprintf(strbuf + off, size - off, "PCIe Gen %d x%d lanes\n",
+		speed, width);
+
+	/* Mapping table entries */
+	off += scnprintf(strbuf + off, size - off, "NTB Mapping Table:\n");
+	for (idx = 0; idx < IDT_MTBL_ENTRY_CNT; idx++) {
+		spin_lock_irqsave(&ndev->mtbl_lock, irqflags);
+		idt_nt_write(ndev, IDT_NT_NTMTBLADDR, idx);
+		data = idt_nt_read(ndev, IDT_NT_NTMTBLDATA);
+		spin_unlock_irqrestore(&ndev->mtbl_lock, irqflags);
+
+		/* Print valid entries only */
+		if (data & IDT_NTMTBLDATA_VALID) {
+			off += scnprintf(strbuf + off, size - off,
+				"\t%hhu. Partition %d, Requester ID 0x%04x\n",
+				idx, GET_FIELD(NTMTBLDATA_PART, data),
+				GET_FIELD(NTMTBLDATA_REQID, data));
+		}
+	}
+	off += scnprintf(strbuf + off, size - off, "\n");
+
+	/* Outbound memory windows information */
+	off += scnprintf(strbuf + off, size - off,
+		"Outbound Memory Windows:\n");
+	for (idx = 0; idx < ndev->mw_cnt; idx += cnt) {
+		data = ndev->mws[idx].type;
+		cnt = idt_get_mw_count(data);
+
+		/* Print Memory Window information */
+		if (data == IDT_MW_DIR)
+			off += scnprintf(strbuf + off, size - off,
+				"\t%hhu.\t", idx);
+		else
+			off += scnprintf(strbuf + off, size - off,
+				"\t%hhu-%hhu.\t", idx, idx + cnt - 1);
+
+		off += scnprintf(strbuf + off, size - off, "%s BAR%hhu, ",
+			idt_get_mw_name(data), ndev->mws[idx].bar);
+
+		off += scnprintf(strbuf + off, size - off,
+			"Address align 0x%08llx, ", ndev->mws[idx].addr_align);
+
+		off += scnprintf(strbuf + off, size - off,
+			"Size align 0x%08llx, Size max %llu\n",
+			ndev->mws[idx].size_align, ndev->mws[idx].size_max);
+	}
+
+	/* Inbound memory windows information */
+	for (pidx = 0; pidx < ndev->peer_cnt; pidx++) {
+		off += scnprintf(strbuf + off, size - off,
+			"Inbound Memory Windows for peer %hhu (Port %hhu):\n",
+			pidx, ndev->peers[pidx].port);
+
+		/* Print Memory Windows information */
+		for (idx = 0; idx < ndev->peers[pidx].mw_cnt; idx += cnt) {
+			data = ndev->peers[pidx].mws[idx].type;
+			cnt = idt_get_mw_count(data);
+
+			if (data == IDT_MW_DIR)
+				off += scnprintf(strbuf + off, size - off,
+					"\t%hhu.\t", idx);
+			else
+				off += scnprintf(strbuf + off, size - off,
+					"\t%hhu-%hhu.\t", idx, idx + cnt - 1);
+
+			off += scnprintf(strbuf + off, size - off,
+				"%s BAR%hhu, ", idt_get_mw_name(data),
+				ndev->peers[pidx].mws[idx].bar);
+
+			off += scnprintf(strbuf + off, size - off,
+				"Address align 0x%08llx, ",
+				ndev->peers[pidx].mws[idx].addr_align);
+
+			off += scnprintf(strbuf + off, size - off,
+				"Size align 0x%08llx, Size max %llu\n",
+				ndev->peers[pidx].mws[idx].size_align,
+				ndev->peers[pidx].mws[idx].size_max);
+		}
+	}
+	off += scnprintf(strbuf + off, size - off, "\n");
+
+	/* Doorbell information */
+	data = idt_sw_read(ndev, IDT_SW_GDBELLSTS);
+	off += scnprintf(strbuf + off, size - off,
+		 "Global Doorbell state\t- 0x%08x\n", data);
+	data = idt_ntb_db_read(&ndev->ntb);
+	off += scnprintf(strbuf + off, size - off,
+		 "Local  Doorbell state\t- 0x%08x\n", data);
+	data = idt_nt_read(ndev, IDT_NT_INDBELLMSK);
+	off += scnprintf(strbuf + off, size - off,
+		 "Local  Doorbell mask\t- 0x%08x\n", data);
+	off += scnprintf(strbuf + off, size - off, "\n");
+
+	/* Messaging information */
+	off += scnprintf(strbuf + off, size - off,
+		 "Message event valid\t- 0x%08x\n", IDT_MSG_MASK);
+	data = idt_ntb_msg_read_sts(&ndev->ntb);
+	off += scnprintf(strbuf + off, size - off,
+		 "Message event status\t- 0x%08x\n", data);
+	data = idt_nt_read(ndev, IDT_NT_MSGSTSMSK);
+	off += scnprintf(strbuf + off, size - off,
+		 "Message event mask\t- 0x%08x\n", data);
+	off += scnprintf(strbuf + off, size - off,
+		 "Message data:\n");
+	for (idx = 0; idx < IDT_MSG_CNT; idx++) {
+		int src;
+		(void)idt_ntb_msg_read(&ndev->ntb, idx, &src, &data);
+		off += scnprintf(strbuf + off, size - off,
+			"\t%hhu. 0x%08x from peer %hhu (Port %hhu)\n",
+			idx, data, src, ndev->peers[src].port);
+	}
+	off += scnprintf(strbuf + off, size - off, "\n");
+
+	/* Current temperature */
+	idt_read_temp(ndev, &temp, &frac);
+	off += scnprintf(strbuf + off, size - off,
+		"Switch temperature\t\t- %hhu.%hhuC\n", temp, frac);
+
+	/* Copy the buffer to the User Space */
+	ret = simple_read_from_buffer(ubuf, count, offp, strbuf, off);
+	kfree(strbuf);
+
+	return ret;
+}
+
+/*
+ * idt_init_dbgfs() - initialize DebugFS node
+ * @ndev:	IDT NTB hardware driver descriptor
+ *
+ * Return: zero on success, otherwise a negative error number.
+ */
+static int idt_init_dbgfs(struct idt_ntb_dev *ndev)
+{
+	char devname[64];
+
+	/* If the top directory is not created then do nothing */
+	if (IS_ERR_OR_NULL(dbgfs_topdir)) {
+		dev_info(&ndev->ntb.pdev->dev, "Top DebugFS directory absent");
+		return PTR_ERR(dbgfs_topdir);
+	}
+
+	/* Create the info file node */
+	snprintf(devname, 64, "info:%s", pci_name(ndev->ntb.pdev));
+	ndev->dbgfs_info = debugfs_create_file(devname, 0400, dbgfs_topdir,
+		ndev, &idt_dbgfs_info_ops);
+	if (IS_ERR(ndev->dbgfs_info)) {
+		dev_dbg(&ndev->ntb.pdev->dev, "Failed to create DebugFS node");
+		return PTR_ERR(ndev->dbgfs_info);
+	}
+
+	dev_dbg(&ndev->ntb.pdev->dev, "NTB device DebugFS node created");
+
+	return 0;
+}
+
+/*
+ * idt_deinit_dbgfs() - deinitialize DebugFS node
+ * @ndev:	IDT NTB hardware driver descriptor
+ *
+ * Just discard the info node from DebugFS
+ */
+static void idt_deinit_dbgfs(struct idt_ntb_dev *ndev)
+{
+	debugfs_remove(ndev->dbgfs_info);
+
+	dev_dbg(&ndev->ntb.pdev->dev, "NTB device DebugFS node discarded");
+}
+
+/*=============================================================================
+ *                     11. Basic PCIe device initialization
+ *=============================================================================
+ */
+
+/*
+ * idt_check_setup() - Check whether the IDT PCIe-swtich is properly
+ *		       pre-initialized
+ * @pdev:	Pointer to the PCI device descriptor
+ *
+ * Return: zero on success, otherwise a negative error number.
+ */
+static int idt_check_setup(struct pci_dev *pdev)
+{
+	u32 data;
+	int ret;
+
+	/* Read the BARSETUP0 */
+	ret = pci_read_config_dword(pdev, IDT_NT_BARSETUP0, &data);
+	if (ret != 0) {
+		dev_err(&pdev->dev,
+			"Failed to read BARSETUP0 config register");
+		return ret;
+	}
+
+	/* Check whether the BAR0 register is enabled to be of config space */
+	if (!(data & IDT_BARSETUP_EN) || !(data & IDT_BARSETUP_MODE_CFG)) {
+		dev_err(&pdev->dev, "BAR0 doesn't map config space");
+		return -EINVAL;
+	}
+
+	/* Configuration space BAR0 must have certain size */
+	if ((data & IDT_BARSETUP_SIZE_MASK) != IDT_BARSETUP_SIZE_CFG) {
+		dev_err(&pdev->dev, "Invalid size of config space");
+		return -EINVAL;
+	}
+
+	dev_dbg(&pdev->dev, "NTB device pre-initialized correctly");
+
+	return 0;
+}
+
+/*
+ * Create the IDT PCIe-switch driver descriptor
+ * @pdev:	Pointer to the PCI device descriptor
+ * @id:		IDT PCIe-device configuration
+ *
+ * It just allocates a memory for IDT PCIe-switch device structure and
+ * initializes some commonly used fields.
+ *
+ * No need of release method, since managed device resource is used for
+ * memory allocation.
+ *
+ * Return: pointer to the descriptor, otherwise a negative error number.
+ */
+static struct idt_ntb_dev *idt_create_dev(struct pci_dev *pdev,
+					  const struct pci_device_id *id)
+{
+	struct idt_ntb_dev *ndev;
+
+	/* Allocate memory for the IDT PCIe-device descriptor */
+	ndev = devm_kzalloc(&pdev->dev, sizeof(*ndev), GFP_KERNEL);
+	if (IS_ERR_OR_NULL(ndev)) {
+		dev_err(&pdev->dev, "Memory allocation failed for descriptor");
+		return ERR_PTR(-ENOMEM);
+	}
+
+	/* Save the IDT PCIe-switch ports configuration */
+	ndev->swcfg = (struct idt_89hpes_cfg *)id->driver_data;
+	/* Save the PCI-device pointer inside the NTB device structure */
+	ndev->ntb.pdev = pdev;
+
+	/* Initialize spin locker of Doorbell, Message and GASA registers */
+	spin_lock_init(&ndev->db_mask_lock);
+	spin_lock_init(&ndev->msg_mask_lock);
+	spin_lock_init(&ndev->gasa_lock);
+
+	dev_info(&pdev->dev, "IDT %s discovered", ndev->swcfg->name);
+
+	dev_dbg(&pdev->dev, "NTB device descriptor created");
+
+	return ndev;
+}
+
+/*
+ * idt_init_pci() - initialize the basic PCI-related subsystem
+ * @ndev:	Pointer to the IDT PCIe-switch driver descriptor
+ *
+ * Managed device resources will be freed automatically in case of failure or
+ * driver detachment.
+ *
+ * Return: zero on success, otherwise negative error number.
+ */
+static int idt_init_pci(struct idt_ntb_dev *ndev)
+{
+	struct pci_dev *pdev = ndev->ntb.pdev;
+	int ret;
+
+	/* Initialize the bit mask of DMA */
+	ret = pci_set_dma_mask(pdev, DMA_BIT_MASK(64));
+	if (ret != 0) {
+		ret = pci_set_dma_mask(pdev, DMA_BIT_MASK(32));
+		if (ret != 0) {
+			dev_err(&pdev->dev, "Failed to set DMA bit mask\n");
+			return ret;
+		}
+		dev_warn(&pdev->dev, "Cannot set DMA highmem bit mask\n");
+	}
+	ret = pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(64));
+	if (ret != 0) {
+		ret = pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(32));
+		if (ret != 0) {
+			dev_err(&pdev->dev,
+				"Failed to set consistent DMA bit mask\n");
+			return ret;
+		}
+		dev_warn(&pdev->dev,
+			"Cannot set consistent DMA highmem bit mask\n");
+	}
+
+	/*
+	 * Enable the device advanced error reporting. It's not critical to
+	 * have AER disabled in the kernel.
+	 */
+	ret = pci_enable_pcie_error_reporting(pdev);
+	if (ret != 0)
+		dev_warn(&pdev->dev, "PCIe AER capability disabled\n");
+	else /* Cleanup uncorrectable error status before getting to init */
+		pci_cleanup_aer_uncorrect_error_status(pdev);
+
+	/* First enable the PCI device */
+	ret = pcim_enable_device(pdev);
+	if (ret != 0) {
+		dev_err(&pdev->dev, "Failed to enable PCIe device\n");
+		goto err_disable_aer;
+	}
+
+	/*
+	 * Enable the bus mastering, which effectively enables MSI IRQs and
+	 * Request TLPs translation
+	 */
+	pci_set_master(pdev);
+
+	/* Request all BARs resources and map BAR0 only */
+	ret = pcim_iomap_regions_request_all(pdev, 1, NTB_NAME);
+	if (ret != 0) {
+		dev_err(&pdev->dev, "Failed to request resources\n");
+		goto err_clear_master;
+	}
+
+	/* Retrieve virtual address of BAR0 - PCI configuration space */
+	ndev->cfgspc = pcim_iomap_table(pdev)[0];
+
+	/* Put the IDT driver data pointer to the PCI-device private pointer */
+	pci_set_drvdata(pdev, ndev);
+
+	dev_dbg(&pdev->dev, "NT-function PCIe interface initialized");
+
+	return 0;
+
+err_clear_master:
+	pci_clear_master(pdev);
+err_disable_aer:
+	(void)pci_disable_pcie_error_reporting(pdev);
+
+	return ret;
+}
+
+/*
+ * idt_deinit_pci() - deinitialize the basic PCI-related subsystem
+ * @ndev:	Pointer to the IDT PCIe-switch driver descriptor
+ *
+ * Managed resources will be freed on the driver detachment
+ */
+static void idt_deinit_pci(struct idt_ntb_dev *ndev)
+{
+	struct pci_dev *pdev = ndev->ntb.pdev;
+
+	/* Clean up the PCI-device private data pointer */
+	pci_set_drvdata(pdev, NULL);
+
+	/* Clear the bus master disabling the Request TLPs translation */
+	pci_clear_master(pdev);
+
+	/* Disable the AER capability */
+	(void)pci_disable_pcie_error_reporting(pdev);
+
+	dev_dbg(&pdev->dev, "NT-function PCIe interface cleared");
+}
+
+/*===========================================================================
+ *                       12. PCI bus callback functions
+ *===========================================================================
+ */
+
+/*
+ * idt_pci_probe() - PCI device probe callback
+ * @pdev:	Pointer to PCI device structure
+ * @id:		PCIe device custom descriptor
+ *
+ * Return: zero on success, otherwise negative error number
+ */
+static int idt_pci_probe(struct pci_dev *pdev,
+			 const struct pci_device_id *id)
+{
+	struct idt_ntb_dev *ndev;
+	int ret;
+
+	/* Check whether IDT PCIe-switch is properly pre-initialized */
+	ret = idt_check_setup(pdev);
+	if (ret != 0)
+		return ret;
+
+	/* Allocate the memory for IDT NTB device data */
+	ndev = idt_create_dev(pdev, id);
+	if (IS_ERR_OR_NULL(ndev))
+		return PTR_ERR(ndev);
+
+	/* Initialize the basic PCI subsystem of the device */
+	ret = idt_init_pci(ndev);
+	if (ret != 0)
+		return ret;
+
+	/* Scan ports of the IDT PCIe-switch */
+	(void)idt_scan_ports(ndev);
+
+	/* Initialize NTB link events subsystem */
+	idt_init_link(ndev);
+
+	/* Initialize MWs subsystem */
+	ret = idt_init_mws(ndev);
+	if (ret != 0)
+		goto err_deinit_link;
+
+	/* Initialize Messaging subsystem */
+	idt_init_msg(ndev);
+
+	/* Initialize IDT interrupts handler */
+	ret = idt_init_isr(ndev);
+	if (ret != 0)
+		goto err_deinit_link;
+
+	/* Register IDT NTB devices on the NTB bus */
+	ret = idt_register_device(ndev);
+	if (ret != 0)
+		goto err_deinit_isr;
+
+	/* Initialize DebugFS info node */
+	(void)idt_init_dbgfs(ndev);
+
+	/* IDT PCIe-switch NTB driver is finally initialized */
+	dev_info(&pdev->dev, "IDT NTB device is ready");
+
+	/* May the force be with us... */
+	return 0;
+
+err_deinit_isr:
+	idt_deinit_isr(ndev);
+err_deinit_link:
+	idt_deinit_link(ndev);
+	idt_deinit_pci(ndev);
+
+	return ret;
+}
+
+/*
+ * idt_pci_probe() - PCI device remove callback
+ * @pdev:	Pointer to PCI device structure
+ */
+static void idt_pci_remove(struct pci_dev *pdev)
+{
+	struct idt_ntb_dev *ndev = pci_get_drvdata(pdev);
+
+	/* Deinit the DebugFS node */
+	idt_deinit_dbgfs(ndev);
+
+	/* Unregister NTB device */
+	idt_unregister_device(ndev);
+
+	/* Stop the interrupts handling */
+	idt_deinit_isr(ndev);
+
+	/* Deinitialize link event subsystem */
+	idt_deinit_link(ndev);
+
+	/* Deinit basic PCI subsystem */
+	idt_deinit_pci(ndev);
+
+	/* IDT PCIe-switch NTB driver is finally initialized */
+	dev_info(&pdev->dev, "IDT NTB device is removed");
+
+	/* Sayonara... */
+}
+
+/*
+ * IDT PCIe-switch models ports configuration structures
+ */
+static struct idt_89hpes_cfg idt_89hpes24nt6ag2_config = {
+	.name = "89HPES24NT6AG2",
+	.port_cnt = 6, .ports = {0, 2, 4, 6, 8, 12}
+};
+static struct idt_89hpes_cfg idt_89hpes32nt8ag2_config = {
+	.name = "89HPES32NT8AG2",
+	.port_cnt = 8, .ports = {0, 2, 4, 6, 8, 12, 16, 20}
+};
+static struct idt_89hpes_cfg idt_89hpes32nt8bg2_config = {
+	.name = "89HPES32NT8BG2",
+	.port_cnt = 8, .ports = {0, 2, 4, 6, 8, 12, 16, 20}
+};
+static struct idt_89hpes_cfg idt_89hpes12nt12g2_config = {
+	.name = "89HPES12NT12G2",
+	.port_cnt = 3, .ports = {0, 8, 16}
+};
+static struct idt_89hpes_cfg idt_89hpes16nt16g2_config = {
+	.name = "89HPES16NT16G2",
+	.port_cnt = 4, .ports = {0, 8, 12, 16}
+};
+static struct idt_89hpes_cfg idt_89hpes24nt24g2_config = {
+	.name = "89HPES24NT24G2",
+	.port_cnt = 8, .ports = {0, 2, 4, 6, 8, 12, 16, 20}
+};
+static struct idt_89hpes_cfg idt_89hpes32nt24ag2_config = {
+	.name = "89HPES32NT24AG2",
+	.port_cnt = 8, .ports = {0, 2, 4, 6, 8, 12, 16, 20}
+};
+static struct idt_89hpes_cfg idt_89hpes32nt24bg2_config = {
+	.name = "89HPES32NT24BG2",
+	.port_cnt = 8, .ports = {0, 2, 4, 6, 8, 12, 16, 20}
+};
+
+/*
+ * PCI-ids table of the supported IDT PCIe-switch devices
+ */
+static const struct pci_device_id idt_pci_tbl[] = {
+	{IDT_PCI_DEVICE_IDS(89HPES24NT6AG2,  idt_89hpes24nt6ag2_config)},
+	{IDT_PCI_DEVICE_IDS(89HPES32NT8AG2,  idt_89hpes32nt8ag2_config)},
+	{IDT_PCI_DEVICE_IDS(89HPES32NT8BG2,  idt_89hpes32nt8bg2_config)},
+	{IDT_PCI_DEVICE_IDS(89HPES12NT12G2,  idt_89hpes12nt12g2_config)},
+	{IDT_PCI_DEVICE_IDS(89HPES16NT16G2,  idt_89hpes16nt16g2_config)},
+	{IDT_PCI_DEVICE_IDS(89HPES24NT24G2,  idt_89hpes24nt24g2_config)},
+	{IDT_PCI_DEVICE_IDS(89HPES32NT24AG2, idt_89hpes32nt24ag2_config)},
+	{IDT_PCI_DEVICE_IDS(89HPES32NT24BG2, idt_89hpes32nt24bg2_config)},
+	{0}
+};
+MODULE_DEVICE_TABLE(pci, idt_pci_tbl);
+
+/*
+ * IDT PCIe-switch NT-function device driver structure definition
+ */
+static struct pci_driver idt_pci_driver = {
+	.name		= KBUILD_MODNAME,
+	.probe		= idt_pci_probe,
+	.remove		= idt_pci_remove,
+	.id_table	= idt_pci_tbl,
+};
+
+static int __init idt_pci_driver_init(void)
+{
+	pr_info("%s %s\n", NTB_DESC, NTB_VER);
+
+	/* Create the top DebugFS directory if the FS is initialized */
+	if (debugfs_initialized())
+		dbgfs_topdir = debugfs_create_dir(KBUILD_MODNAME, NULL);
+
+	/* Register the NTB hardware driver to handle the PCI device */
+	return pci_register_driver(&idt_pci_driver);
+}
+module_init(idt_pci_driver_init);
+
+static void __exit idt_pci_driver_exit(void)
+{
+	/* Unregister the NTB hardware driver */
+	pci_unregister_driver(&idt_pci_driver);
+
+	/* Discard the top DebugFS directory */
+	debugfs_remove_recursive(dbgfs_topdir);
+}
+module_exit(idt_pci_driver_exit);
+
diff --git a/drivers/ntb/hw/idt/ntb_hw_idt.h b/drivers/ntb/hw/idt/ntb_hw_idt.h
new file mode 100644
index 000000000000..856fd182f6f4
--- /dev/null
+++ b/drivers/ntb/hw/idt/ntb_hw_idt.h
@@ -0,0 +1,1149 @@
+/*
+ *   This file is provided under a GPLv2 license.  When using or
+ *   redistributing this file, you may do so under that license.
+ *
+ *   GPL LICENSE SUMMARY
+ *
+ *   Copyright (C) 2016 T-Platforms All Rights Reserved.
+ *
+ *   This program is free software; you can redistribute it and/or modify it
+ *   under the terms and conditions of the GNU General Public License,
+ *   version 2, as published by the Free Software Foundation.
+ *
+ *   This program is distributed in the hope that it will be useful, but
+ *   WITHOUT ANY WARRANTY; without even the implied warranty of
+ *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General
+ *   Public License for more details.
+ *
+ *   You should have received a copy of the GNU General Public License along
+ *   with this program; if not, one can be found http://www.gnu.org/licenses/.
+ *
+ *   The full GNU General Public License is included in this distribution in
+ *   the file called "COPYING".
+ *
+ *   THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ *   "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ *   LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ *   A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ *   OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ *   SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ *   LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ *   DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ *   THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ *   (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ *   OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ * IDT PCIe-switch NTB Linux driver
+ *
+ * Contact Information:
+ * Serge Semin <fancer.lancer@gmail.com>, <Sergey.Semin@t-platforms.ru>
+ */
+
+#ifndef NTB_HW_IDT_H
+#define NTB_HW_IDT_H
+
+#include <linux/types.h>
+#include <linux/pci.h>
+#include <linux/pci_ids.h>
+#include <linux/interrupt.h>
+#include <linux/spinlock.h>
+#include <linux/ntb.h>
+
+
+/*
+ * Macro is used to create the struct pci_device_id that matches
+ * the supported IDT PCIe-switches
+ * @devname: Capitalized name of the particular device
+ * @data: Variable passed to the driver of the particular device
+ */
+#define IDT_PCI_DEVICE_IDS(devname, data) \
+	.vendor = PCI_VENDOR_ID_IDT, .device = PCI_DEVICE_ID_IDT_##devname, \
+	.subvendor = PCI_ANY_ID, .subdevice = PCI_ANY_ID, \
+	.class = (PCI_CLASS_BRIDGE_OTHER << 8), .class_mask = (0xFFFF00), \
+	.driver_data = (kernel_ulong_t)&data
+
+/*
+ * IDT PCIe-switches device IDs
+ */
+#define PCI_DEVICE_ID_IDT_89HPES24NT6AG2  0x8091
+#define PCI_DEVICE_ID_IDT_89HPES32NT8AG2  0x808F
+#define PCI_DEVICE_ID_IDT_89HPES32NT8BG2  0x8088
+#define PCI_DEVICE_ID_IDT_89HPES12NT12G2  0x8092
+#define PCI_DEVICE_ID_IDT_89HPES16NT16G2  0x8090
+#define PCI_DEVICE_ID_IDT_89HPES24NT24G2  0x808E
+#define PCI_DEVICE_ID_IDT_89HPES32NT24AG2 0x808C
+#define PCI_DEVICE_ID_IDT_89HPES32NT24BG2 0x808A
+
+/*
+ * NT-function Configuration Space registers
+ * NOTE 1) The IDT PCIe-switch internal data is little-endian
+ *      so it must be taken into account in the driver
+ *      internals.
+ *      2) Additionally the registers should be accessed either
+ *      with byte-enables corresponding to their native size or
+ *      the size of one DWORD
+ *
+ * So to simplify the driver code, there is only DWORD-sized read/write
+ * operations utilized.
+ */
+/* PCI Express Configuration Space */
+/* PCI Express command/status register	(DWORD) */
+#define IDT_NT_PCICMDSTS		0x00004U
+/* PCI Express Device Capabilities	(DWORD) */
+#define IDT_NT_PCIEDCAP			0x00044U
+/* PCI Express Device Control/Status	(WORD+WORD) */
+#define IDT_NT_PCIEDCTLSTS		0x00048U
+/* PCI Express Link Capabilities	(DWORD) */
+#define IDT_NT_PCIELCAP			0x0004CU
+/* PCI Express Link Control/Status	(WORD+WORD) */
+#define IDT_NT_PCIELCTLSTS		0x00050U
+/* PCI Express Device Capabilities 2	(DWORD) */
+#define IDT_NT_PCIEDCAP2		0x00064U
+/* PCI Express Device Control 2		(WORD+WORD) */
+#define IDT_NT_PCIEDCTL2		0x00068U
+/* PCI Power Management Control and Status (DWORD) */
+#define IDT_NT_PMCSR			0x000C4U
+/*==========================================*/
+/* IDT Proprietary NT-port-specific registers */
+/* NT-function main control registers */
+/* NT Endpoint Control			(DWORD) */
+#define IDT_NT_NTCTL			0x00400U
+/* NT Endpoint Interrupt Status/Mask	(DWORD) */
+#define IDT_NT_NTINTSTS			0x00404U
+#define IDT_NT_NTINTMSK			0x00408U
+/* NT Endpoint Signal Data		(DWORD) */
+#define IDT_NT_NTSDATA			0x0040CU
+/* NT Endpoint Global Signal		(DWORD) */
+#define IDT_NT_NTGSIGNAL		0x00410U
+/* Internal Error Reporting Mask 0/1	(DWORD) */
+#define IDT_NT_NTIERRORMSK0		0x00414U
+#define IDT_NT_NTIERRORMSK1		0x00418U
+/* Doorbel registers */
+/* NT Outbound Doorbell Set		(DWORD) */
+#define IDT_NT_OUTDBELLSET		0x00420U
+/* NT Inbound Doorbell Status/Mask	(DWORD) */
+#define IDT_NT_INDBELLSTS		0x00428U
+#define IDT_NT_INDBELLMSK		0x0042CU
+/* Message registers */
+/* Outbound Message N			(DWORD) */
+#define IDT_NT_OUTMSG0			0x00430U
+#define IDT_NT_OUTMSG1			0x00434U
+#define IDT_NT_OUTMSG2			0x00438U
+#define IDT_NT_OUTMSG3			0x0043CU
+/* Inbound Message N			(DWORD) */
+#define IDT_NT_INMSG0			0x00440U
+#define IDT_NT_INMSG1			0x00444U
+#define IDT_NT_INMSG2			0x00448U
+#define IDT_NT_INMSG3			0x0044CU
+/* Inbound Message Source N		(DWORD) */
+#define IDT_NT_INMSGSRC0		0x00450U
+#define IDT_NT_INMSGSRC1		0x00454U
+#define IDT_NT_INMSGSRC2		0x00458U
+#define IDT_NT_INMSGSRC3		0x0045CU
+/* Message Status			(DWORD) */
+#define IDT_NT_MSGSTS			0x00460U
+/* Message Status Mask			(DWORD) */
+#define IDT_NT_MSGSTSMSK		0x00464U
+/* BAR-setup registers */
+/* BAR N Setup/Limit Address/Lower and Upper Translated Base Address (DWORD) */
+#define IDT_NT_BARSETUP0		0x00470U
+#define IDT_NT_BARLIMIT0		0x00474U
+#define IDT_NT_BARLTBASE0		0x00478U
+#define IDT_NT_BARUTBASE0		0x0047CU
+#define IDT_NT_BARSETUP1		0x00480U
+#define IDT_NT_BARLIMIT1		0x00484U
+#define IDT_NT_BARLTBASE1		0x00488U
+#define IDT_NT_BARUTBASE1		0x0048CU
+#define IDT_NT_BARSETUP2		0x00490U
+#define IDT_NT_BARLIMIT2		0x00494U
+#define IDT_NT_BARLTBASE2		0x00498U
+#define IDT_NT_BARUTBASE2		0x0049CU
+#define IDT_NT_BARSETUP3		0x004A0U
+#define IDT_NT_BARLIMIT3		0x004A4U
+#define IDT_NT_BARLTBASE3		0x004A8U
+#define IDT_NT_BARUTBASE3		0x004ACU
+#define IDT_NT_BARSETUP4		0x004B0U
+#define IDT_NT_BARLIMIT4		0x004B4U
+#define IDT_NT_BARLTBASE4		0x004B8U
+#define IDT_NT_BARUTBASE4		0x004BCU
+#define IDT_NT_BARSETUP5		0x004C0U
+#define IDT_NT_BARLIMIT5		0x004C4U
+#define IDT_NT_BARLTBASE5		0x004C8U
+#define IDT_NT_BARUTBASE5		0x004CCU
+/* NT mapping table registers */
+/* NT Mapping Table Address/Status/Data	(DWORD) */
+#define IDT_NT_NTMTBLADDR		0x004D0U
+#define IDT_NT_NTMTBLSTS		0x004D4U
+#define IDT_NT_NTMTBLDATA		0x004D8U
+/* Requester ID (Bus:Device:Function) Capture	(DWORD) */
+#define IDT_NT_REQIDCAP			0x004DCU
+/* Memory Windows Lookup table registers */
+/* Lookup Table Offset/Lower, Middle and Upper data	(DWORD) */
+#define IDT_NT_LUTOFFSET		0x004E0U
+#define IDT_NT_LUTLDATA			0x004E4U
+#define IDT_NT_LUTMDATA			0x004E8U
+#define IDT_NT_LUTUDATA			0x004ECU
+/* NT Endpoint Uncorrectable/Correctable Errors Emulation registers (DWORD) */
+#define IDT_NT_NTUEEM			0x004F0U
+#define IDT_NT_NTCEEM			0x004F4U
+/* Global Address Space Access/Data registers	(DWARD) */
+#define IDT_NT_GASAADDR			0x00FF8U
+#define IDT_NT_GASADATA			0x00FFCU
+
+/*
+ * IDT PCIe-switch Global Configuration and Status registers
+ */
+/* Port N Configuration register in global space */
+/* PCI Express command/status and link control/status registers (WORD+WORD) */
+#define IDT_SW_NTP0_PCIECMDSTS		0x01004U
+#define IDT_SW_NTP0_PCIELCTLSTS		0x01050U
+/* NT-function control register		(DWORD) */
+#define IDT_SW_NTP0_NTCTL		0x01400U
+/* BAR setup/limit/base address registers (DWORD) */
+#define IDT_SW_NTP0_BARSETUP0		0x01470U
+#define IDT_SW_NTP0_BARLIMIT0		0x01474U
+#define IDT_SW_NTP0_BARLTBASE0		0x01478U
+#define IDT_SW_NTP0_BARUTBASE0		0x0147CU
+#define IDT_SW_NTP0_BARSETUP1		0x01480U
+#define IDT_SW_NTP0_BARLIMIT1		0x01484U
+#define IDT_SW_NTP0_BARLTBASE1		0x01488U
+#define IDT_SW_NTP0_BARUTBASE1		0x0148CU
+#define IDT_SW_NTP0_BARSETUP2		0x01490U
+#define IDT_SW_NTP0_BARLIMIT2		0x01494U
+#define IDT_SW_NTP0_BARLTBASE2		0x01498U
+#define IDT_SW_NTP0_BARUTBASE2		0x0149CU
+#define IDT_SW_NTP0_BARSETUP3		0x014A0U
+#define IDT_SW_NTP0_BARLIMIT3		0x014A4U
+#define IDT_SW_NTP0_BARLTBASE3		0x014A8U
+#define IDT_SW_NTP0_BARUTBASE3		0x014ACU
+#define IDT_SW_NTP0_BARSETUP4		0x014B0U
+#define IDT_SW_NTP0_BARLIMIT4		0x014B4U
+#define IDT_SW_NTP0_BARLTBASE4		0x014B8U
+#define IDT_SW_NTP0_BARUTBASE4		0x014BCU
+#define IDT_SW_NTP0_BARSETUP5		0x014C0U
+#define IDT_SW_NTP0_BARLIMIT5		0x014C4U
+#define IDT_SW_NTP0_BARLTBASE5		0x014C8U
+#define IDT_SW_NTP0_BARUTBASE5		0x014CCU
+/* PCI Express command/status and link control/status registers (WORD+WORD) */
+#define IDT_SW_NTP2_PCIECMDSTS		0x05004U
+#define IDT_SW_NTP2_PCIELCTLSTS		0x05050U
+/* NT-function control register		(DWORD) */
+#define IDT_SW_NTP2_NTCTL		0x05400U
+/* BAR setup/limit/base address registers (DWORD) */
+#define IDT_SW_NTP2_BARSETUP0		0x05470U
+#define IDT_SW_NTP2_BARLIMIT0		0x05474U
+#define IDT_SW_NTP2_BARLTBASE0		0x05478U
+#define IDT_SW_NTP2_BARUTBASE0		0x0547CU
+#define IDT_SW_NTP2_BARSETUP1		0x05480U
+#define IDT_SW_NTP2_BARLIMIT1		0x05484U
+#define IDT_SW_NTP2_BARLTBASE1		0x05488U
+#define IDT_SW_NTP2_BARUTBASE1		0x0548CU
+#define IDT_SW_NTP2_BARSETUP2		0x05490U
+#define IDT_SW_NTP2_BARLIMIT2		0x05494U
+#define IDT_SW_NTP2_BARLTBASE2		0x05498U
+#define IDT_SW_NTP2_BARUTBASE2		0x0549CU
+#define IDT_SW_NTP2_BARSETUP3		0x054A0U
+#define IDT_SW_NTP2_BARLIMIT3		0x054A4U
+#define IDT_SW_NTP2_BARLTBASE3		0x054A8U
+#define IDT_SW_NTP2_BARUTBASE3		0x054ACU
+#define IDT_SW_NTP2_BARSETUP4		0x054B0U
+#define IDT_SW_NTP2_BARLIMIT4		0x054B4U
+#define IDT_SW_NTP2_BARLTBASE4		0x054B8U
+#define IDT_SW_NTP2_BARUTBASE4		0x054BCU
+#define IDT_SW_NTP2_BARSETUP5		0x054C0U
+#define IDT_SW_NTP2_BARLIMIT5		0x054C4U
+#define IDT_SW_NTP2_BARLTBASE5		0x054C8U
+#define IDT_SW_NTP2_BARUTBASE5		0x054CCU
+/* PCI Express command/status and link control/status registers (WORD+WORD) */
+#define IDT_SW_NTP4_PCIECMDSTS		0x09004U
+#define IDT_SW_NTP4_PCIELCTLSTS		0x09050U
+/* NT-function control register		(DWORD) */
+#define IDT_SW_NTP4_NTCTL		0x09400U
+/* BAR setup/limit/base address registers (DWORD) */
+#define IDT_SW_NTP4_BARSETUP0		0x09470U
+#define IDT_SW_NTP4_BARLIMIT0		0x09474U
+#define IDT_SW_NTP4_BARLTBASE0		0x09478U
+#define IDT_SW_NTP4_BARUTBASE0		0x0947CU
+#define IDT_SW_NTP4_BARSETUP1		0x09480U
+#define IDT_SW_NTP4_BARLIMIT1		0x09484U
+#define IDT_SW_NTP4_BARLTBASE1		0x09488U
+#define IDT_SW_NTP4_BARUTBASE1		0x0948CU
+#define IDT_SW_NTP4_BARSETUP2		0x09490U
+#define IDT_SW_NTP4_BARLIMIT2		0x09494U
+#define IDT_SW_NTP4_BARLTBASE2		0x09498U
+#define IDT_SW_NTP4_BARUTBASE2		0x0949CU
+#define IDT_SW_NTP4_BARSETUP3		0x094A0U
+#define IDT_SW_NTP4_BARLIMIT3		0x094A4U
+#define IDT_SW_NTP4_BARLTBASE3		0x094A8U
+#define IDT_SW_NTP4_BARUTBASE3		0x094ACU
+#define IDT_SW_NTP4_BARSETUP4		0x094B0U
+#define IDT_SW_NTP4_BARLIMIT4		0x094B4U
+#define IDT_SW_NTP4_BARLTBASE4		0x094B8U
+#define IDT_SW_NTP4_BARUTBASE4		0x094BCU
+#define IDT_SW_NTP4_BARSETUP5		0x094C0U
+#define IDT_SW_NTP4_BARLIMIT5		0x094C4U
+#define IDT_SW_NTP4_BARLTBASE5		0x094C8U
+#define IDT_SW_NTP4_BARUTBASE5		0x094CCU
+/* PCI Express command/status and link control/status registers (WORD+WORD) */
+#define IDT_SW_NTP6_PCIECMDSTS		0x0D004U
+#define IDT_SW_NTP6_PCIELCTLSTS		0x0D050U
+/* NT-function control register		(DWORD) */
+#define IDT_SW_NTP6_NTCTL		0x0D400U
+/* BAR setup/limit/base address registers (DWORD) */
+#define IDT_SW_NTP6_BARSETUP0		0x0D470U
+#define IDT_SW_NTP6_BARLIMIT0		0x0D474U
+#define IDT_SW_NTP6_BARLTBASE0		0x0D478U
+#define IDT_SW_NTP6_BARUTBASE0		0x0D47CU
+#define IDT_SW_NTP6_BARSETUP1		0x0D480U
+#define IDT_SW_NTP6_BARLIMIT1		0x0D484U
+#define IDT_SW_NTP6_BARLTBASE1		0x0D488U
+#define IDT_SW_NTP6_BARUTBASE1		0x0D48CU
+#define IDT_SW_NTP6_BARSETUP2		0x0D490U
+#define IDT_SW_NTP6_BARLIMIT2		0x0D494U
+#define IDT_SW_NTP6_BARLTBASE2		0x0D498U
+#define IDT_SW_NTP6_BARUTBASE2		0x0D49CU
+#define IDT_SW_NTP6_BARSETUP3		0x0D4A0U
+#define IDT_SW_NTP6_BARLIMIT3		0x0D4A4U
+#define IDT_SW_NTP6_BARLTBASE3		0x0D4A8U
+#define IDT_SW_NTP6_BARUTBASE3		0x0D4ACU
+#define IDT_SW_NTP6_BARSETUP4		0x0D4B0U
+#define IDT_SW_NTP6_BARLIMIT4		0x0D4B4U
+#define IDT_SW_NTP6_BARLTBASE4		0x0D4B8U
+#define IDT_SW_NTP6_BARUTBASE4		0x0D4BCU
+#define IDT_SW_NTP6_BARSETUP5		0x0D4C0U
+#define IDT_SW_NTP6_BARLIMIT5		0x0D4C4U
+#define IDT_SW_NTP6_BARLTBASE5		0x0D4C8U
+#define IDT_SW_NTP6_BARUTBASE5		0x0D4CCU
+/* PCI Express command/status and link control/status registers (WORD+WORD) */
+#define IDT_SW_NTP8_PCIECMDSTS		0x11004U
+#define IDT_SW_NTP8_PCIELCTLSTS		0x11050U
+/* NT-function control register		(DWORD) */
+#define IDT_SW_NTP8_NTCTL		0x11400U
+/* BAR setup/limit/base address registers (DWORD) */
+#define IDT_SW_NTP8_BARSETUP0		0x11470U
+#define IDT_SW_NTP8_BARLIMIT0		0x11474U
+#define IDT_SW_NTP8_BARLTBASE0		0x11478U
+#define IDT_SW_NTP8_BARUTBASE0		0x1147CU
+#define IDT_SW_NTP8_BARSETUP1		0x11480U
+#define IDT_SW_NTP8_BARLIMIT1		0x11484U
+#define IDT_SW_NTP8_BARLTBASE1		0x11488U
+#define IDT_SW_NTP8_BARUTBASE1		0x1148CU
+#define IDT_SW_NTP8_BARSETUP2		0x11490U
+#define IDT_SW_NTP8_BARLIMIT2		0x11494U
+#define IDT_SW_NTP8_BARLTBASE2		0x11498U
+#define IDT_SW_NTP8_BARUTBASE2		0x1149CU
+#define IDT_SW_NTP8_BARSETUP3		0x114A0U
+#define IDT_SW_NTP8_BARLIMIT3		0x114A4U
+#define IDT_SW_NTP8_BARLTBASE3		0x114A8U
+#define IDT_SW_NTP8_BARUTBASE3		0x114ACU
+#define IDT_SW_NTP8_BARSETUP4		0x114B0U
+#define IDT_SW_NTP8_BARLIMIT4		0x114B4U
+#define IDT_SW_NTP8_BARLTBASE4		0x114B8U
+#define IDT_SW_NTP8_BARUTBASE4		0x114BCU
+#define IDT_SW_NTP8_BARSETUP5		0x114C0U
+#define IDT_SW_NTP8_BARLIMIT5		0x114C4U
+#define IDT_SW_NTP8_BARLTBASE5		0x114C8U
+#define IDT_SW_NTP8_BARUTBASE5		0x114CCU
+/* PCI Express command/status and link control/status registers (WORD+WORD) */
+#define IDT_SW_NTP12_PCIECMDSTS		0x19004U
+#define IDT_SW_NTP12_PCIELCTLSTS	0x19050U
+/* NT-function control register		(DWORD) */
+#define IDT_SW_NTP12_NTCTL		0x19400U
+/* BAR setup/limit/base address registers (DWORD) */
+#define IDT_SW_NTP12_BARSETUP0		0x19470U
+#define IDT_SW_NTP12_BARLIMIT0		0x19474U
+#define IDT_SW_NTP12_BARLTBASE0		0x19478U
+#define IDT_SW_NTP12_BARUTBASE0		0x1947CU
+#define IDT_SW_NTP12_BARSETUP1		0x19480U
+#define IDT_SW_NTP12_BARLIMIT1		0x19484U
+#define IDT_SW_NTP12_BARLTBASE1		0x19488U
+#define IDT_SW_NTP12_BARUTBASE1		0x1948CU
+#define IDT_SW_NTP12_BARSETUP2		0x19490U
+#define IDT_SW_NTP12_BARLIMIT2		0x19494U
+#define IDT_SW_NTP12_BARLTBASE2		0x19498U
+#define IDT_SW_NTP12_BARUTBASE2		0x1949CU
+#define IDT_SW_NTP12_BARSETUP3		0x194A0U
+#define IDT_SW_NTP12_BARLIMIT3		0x194A4U
+#define IDT_SW_NTP12_BARLTBASE3		0x194A8U
+#define IDT_SW_NTP12_BARUTBASE3		0x194ACU
+#define IDT_SW_NTP12_BARSETUP4		0x194B0U
+#define IDT_SW_NTP12_BARLIMIT4		0x194B4U
+#define IDT_SW_NTP12_BARLTBASE4		0x194B8U
+#define IDT_SW_NTP12_BARUTBASE4		0x194BCU
+#define IDT_SW_NTP12_BARSETUP5		0x194C0U
+#define IDT_SW_NTP12_BARLIMIT5		0x194C4U
+#define IDT_SW_NTP12_BARLTBASE5		0x194C8U
+#define IDT_SW_NTP12_BARUTBASE5		0x194CCU
+/* PCI Express command/status and link control/status registers (WORD+WORD) */
+#define IDT_SW_NTP16_PCIECMDSTS		0x21004U
+#define IDT_SW_NTP16_PCIELCTLSTS	0x21050U
+/* NT-function control register		(DWORD) */
+#define IDT_SW_NTP16_NTCTL		0x21400U
+/* BAR setup/limit/base address registers (DWORD) */
+#define IDT_SW_NTP16_BARSETUP0		0x21470U
+#define IDT_SW_NTP16_BARLIMIT0		0x21474U
+#define IDT_SW_NTP16_BARLTBASE0		0x21478U
+#define IDT_SW_NTP16_BARUTBASE0		0x2147CU
+#define IDT_SW_NTP16_BARSETUP1		0x21480U
+#define IDT_SW_NTP16_BARLIMIT1		0x21484U
+#define IDT_SW_NTP16_BARLTBASE1		0x21488U
+#define IDT_SW_NTP16_BARUTBASE1		0x2148CU
+#define IDT_SW_NTP16_BARSETUP2		0x21490U
+#define IDT_SW_NTP16_BARLIMIT2		0x21494U
+#define IDT_SW_NTP16_BARLTBASE2		0x21498U
+#define IDT_SW_NTP16_BARUTBASE2		0x2149CU
+#define IDT_SW_NTP16_BARSETUP3		0x214A0U
+#define IDT_SW_NTP16_BARLIMIT3		0x214A4U
+#define IDT_SW_NTP16_BARLTBASE3		0x214A8U
+#define IDT_SW_NTP16_BARUTBASE3		0x214ACU
+#define IDT_SW_NTP16_BARSETUP4		0x214B0U
+#define IDT_SW_NTP16_BARLIMIT4		0x214B4U
+#define IDT_SW_NTP16_BARLTBASE4		0x214B8U
+#define IDT_SW_NTP16_BARUTBASE4		0x214BCU
+#define IDT_SW_NTP16_BARSETUP5		0x214C0U
+#define IDT_SW_NTP16_BARLIMIT5		0x214C4U
+#define IDT_SW_NTP16_BARLTBASE5		0x214C8U
+#define IDT_SW_NTP16_BARUTBASE5		0x214CCU
+/* PCI Express command/status and link control/status registers (WORD+WORD) */
+#define IDT_SW_NTP20_PCIECMDSTS		0x29004U
+#define IDT_SW_NTP20_PCIELCTLSTS	0x29050U
+/* NT-function control register		(DWORD) */
+#define IDT_SW_NTP20_NTCTL		0x29400U
+/* BAR setup/limit/base address registers (DWORD) */
+#define IDT_SW_NTP20_BARSETUP0		0x29470U
+#define IDT_SW_NTP20_BARLIMIT0		0x29474U
+#define IDT_SW_NTP20_BARLTBASE0		0x29478U
+#define IDT_SW_NTP20_BARUTBASE0		0x2947CU
+#define IDT_SW_NTP20_BARSETUP1		0x29480U
+#define IDT_SW_NTP20_BARLIMIT1		0x29484U
+#define IDT_SW_NTP20_BARLTBASE1		0x29488U
+#define IDT_SW_NTP20_BARUTBASE1		0x2948CU
+#define IDT_SW_NTP20_BARSETUP2		0x29490U
+#define IDT_SW_NTP20_BARLIMIT2		0x29494U
+#define IDT_SW_NTP20_BARLTBASE2		0x29498U
+#define IDT_SW_NTP20_BARUTBASE2		0x2949CU
+#define IDT_SW_NTP20_BARSETUP3		0x294A0U
+#define IDT_SW_NTP20_BARLIMIT3		0x294A4U
+#define IDT_SW_NTP20_BARLTBASE3		0x294A8U
+#define IDT_SW_NTP20_BARUTBASE3		0x294ACU
+#define IDT_SW_NTP20_BARSETUP4		0x294B0U
+#define IDT_SW_NTP20_BARLIMIT4		0x294B4U
+#define IDT_SW_NTP20_BARLTBASE4		0x294B8U
+#define IDT_SW_NTP20_BARUTBASE4		0x294BCU
+#define IDT_SW_NTP20_BARSETUP5		0x294C0U
+#define IDT_SW_NTP20_BARLIMIT5		0x294C4U
+#define IDT_SW_NTP20_BARLTBASE5		0x294C8U
+#define IDT_SW_NTP20_BARUTBASE5		0x294CCU
+/* IDT PCIe-switch control register	(DWORD) */
+#define IDT_SW_CTL			0x3E000U
+/* Boot Configuration Vector Status	(DWORD) */
+#define IDT_SW_BCVSTS			0x3E004U
+/* Port Clocking Mode			(DWORD) */
+#define IDT_SW_PCLKMODE			0x3E008U
+/* Reset Drain Delay			(DWORD) */
+#define IDT_SW_RDRAINDELAY		0x3E080U
+/* Port Operating Mode Change Drain Delay (DWORD) */
+#define IDT_SW_POMCDELAY		0x3E084U
+/* Side Effect Delay			(DWORD) */
+#define IDT_SW_SEDELAY			0x3E088U
+/* Upstream Secondary Bus Reset Delay	(DWORD) */
+#define IDT_SW_SSBRDELAY		0x3E08CU
+/* Switch partition N Control/Status/Failover registers */
+#define IDT_SW_SWPART0CTL		0x3E100U
+#define IDT_SW_SWPART0STS		0x3E104U
+#define IDT_SW_SWPART0FCTL		0x3E108U
+#define IDT_SW_SWPART1CTL		0x3E120U
+#define IDT_SW_SWPART1STS		0x3E124U
+#define IDT_SW_SWPART1FCTL		0x3E128U
+#define IDT_SW_SWPART2CTL		0x3E140U
+#define IDT_SW_SWPART2STS		0x3E144U
+#define IDT_SW_SWPART2FCTL		0x3E148U
+#define IDT_SW_SWPART3CTL		0x3E160U
+#define IDT_SW_SWPART3STS		0x3E164U
+#define IDT_SW_SWPART3FCTL		0x3E168U
+#define IDT_SW_SWPART4CTL		0x3E180U
+#define IDT_SW_SWPART4STS		0x3E184U
+#define IDT_SW_SWPART4FCTL		0x3E188U
+#define IDT_SW_SWPART5CTL		0x3E1A0U
+#define IDT_SW_SWPART5STS		0x3E1A4U
+#define IDT_SW_SWPART5FCTL		0x3E1A8U
+#define IDT_SW_SWPART6CTL		0x3E1C0U
+#define IDT_SW_SWPART6STS		0x3E1C4U
+#define IDT_SW_SWPART6FCTL		0x3E1C8U
+#define IDT_SW_SWPART7CTL		0x3E1E0U
+#define IDT_SW_SWPART7STS		0x3E1E4U
+#define IDT_SW_SWPART7FCTL		0x3E1E8U
+/* Switch port N control and status registers */
+#define IDT_SW_SWPORT0CTL		0x3E200U
+#define IDT_SW_SWPORT0STS		0x3E204U
+#define IDT_SW_SWPORT0FCTL		0x3E208U
+#define IDT_SW_SWPORT2CTL		0x3E240U
+#define IDT_SW_SWPORT2STS		0x3E244U
+#define IDT_SW_SWPORT2FCTL		0x3E248U
+#define IDT_SW_SWPORT4CTL		0x3E280U
+#define IDT_SW_SWPORT4STS		0x3E284U
+#define IDT_SW_SWPORT4FCTL		0x3E288U
+#define IDT_SW_SWPORT6CTL		0x3E2C0U
+#define IDT_SW_SWPORT6STS		0x3E2C4U
+#define IDT_SW_SWPORT6FCTL		0x3E2C8U
+#define IDT_SW_SWPORT8CTL		0x3E300U
+#define IDT_SW_SWPORT8STS		0x3E304U
+#define IDT_SW_SWPORT8FCTL		0x3E308U
+#define IDT_SW_SWPORT12CTL		0x3E380U
+#define IDT_SW_SWPORT12STS		0x3E384U
+#define IDT_SW_SWPORT12FCTL		0x3E388U
+#define IDT_SW_SWPORT16CTL		0x3E400U
+#define IDT_SW_SWPORT16STS		0x3E404U
+#define IDT_SW_SWPORT16FCTL		0x3E408U
+#define IDT_SW_SWPORT20CTL		0x3E480U
+#define IDT_SW_SWPORT20STS		0x3E484U
+#define IDT_SW_SWPORT20FCTL		0x3E488U
+/* Switch Event registers */
+/* Switch Event Status/Mask/Partition mask (DWORD) */
+#define IDT_SW_SESTS			0x3EC00U
+#define IDT_SW_SEMSK			0x3EC04U
+#define IDT_SW_SEPMSK			0x3EC08U
+/* Switch Event Link Up/Down Status/Mask (DWORD) */
+#define IDT_SW_SELINKUPSTS		0x3EC0CU
+#define IDT_SW_SELINKUPMSK		0x3EC10U
+#define IDT_SW_SELINKDNSTS		0x3EC14U
+#define IDT_SW_SELINKDNMSK		0x3EC18U
+/* Switch Event Fundamental Reset Status/Mask (DWORD) */
+#define IDT_SW_SEFRSTSTS		0x3EC1CU
+#define IDT_SW_SEFRSTMSK		0x3EC20U
+/* Switch Event Hot Reset Status/Mask	(DWORD) */
+#define IDT_SW_SEHRSTSTS		0x3EC24U
+#define IDT_SW_SEHRSTMSK		0x3EC28U
+/* Switch Event Failover Mask		(DWORD) */
+#define IDT_SW_SEFOVRMSK		0x3EC2CU
+/* Switch Event Global Signal Status/Mask (DWORD) */
+#define IDT_SW_SEGSIGSTS		0x3EC30U
+#define IDT_SW_SEGSIGMSK		0x3EC34U
+/* NT Global Doorbell Status		(DWORD) */
+#define IDT_SW_GDBELLSTS		0x3EC3CU
+/* Switch partition N message M control (msgs routing table) (DWORD) */
+#define IDT_SW_SWP0MSGCTL0		0x3EE00U
+#define IDT_SW_SWP1MSGCTL0		0x3EE04U
+#define IDT_SW_SWP2MSGCTL0		0x3EE08U
+#define IDT_SW_SWP3MSGCTL0		0x3EE0CU
+#define IDT_SW_SWP4MSGCTL0		0x3EE10U
+#define IDT_SW_SWP5MSGCTL0		0x3EE14U
+#define IDT_SW_SWP6MSGCTL0		0x3EE18U
+#define IDT_SW_SWP7MSGCTL0		0x3EE1CU
+#define IDT_SW_SWP0MSGCTL1		0x3EE20U
+#define IDT_SW_SWP1MSGCTL1		0x3EE24U
+#define IDT_SW_SWP2MSGCTL1		0x3EE28U
+#define IDT_SW_SWP3MSGCTL1		0x3EE2CU
+#define IDT_SW_SWP4MSGCTL1		0x3EE30U
+#define IDT_SW_SWP5MSGCTL1		0x3EE34U
+#define IDT_SW_SWP6MSGCTL1		0x3EE38U
+#define IDT_SW_SWP7MSGCTL1		0x3EE3CU
+#define IDT_SW_SWP0MSGCTL2		0x3EE40U
+#define IDT_SW_SWP1MSGCTL2		0x3EE44U
+#define IDT_SW_SWP2MSGCTL2		0x3EE48U
+#define IDT_SW_SWP3MSGCTL2		0x3EE4CU
+#define IDT_SW_SWP4MSGCTL2		0x3EE50U
+#define IDT_SW_SWP5MSGCTL2		0x3EE54U
+#define IDT_SW_SWP6MSGCTL2		0x3EE58U
+#define IDT_SW_SWP7MSGCTL2		0x3EE5CU
+#define IDT_SW_SWP0MSGCTL3		0x3EE60U
+#define IDT_SW_SWP1MSGCTL3		0x3EE64U
+#define IDT_SW_SWP2MSGCTL3		0x3EE68U
+#define IDT_SW_SWP3MSGCTL3		0x3EE6CU
+#define IDT_SW_SWP4MSGCTL3		0x3EE70U
+#define IDT_SW_SWP5MSGCTL3		0x3EE74U
+#define IDT_SW_SWP6MSGCTL3		0x3EE78U
+#define IDT_SW_SWP7MSGCTL3		0x3EE7CU
+/* SMBus Status and Control registers	(DWORD) */
+#define IDT_SW_SMBUSSTS			0x3F188U
+#define IDT_SW_SMBUSCTL			0x3F18CU
+/* Serial EEPROM Interface		(DWORD) */
+#define IDT_SW_EEPROMINTF		0x3F190U
+/* MBus I/O Expander Address N		(DWORD) */
+#define IDT_SW_IOEXPADDR0		0x3F198U
+#define IDT_SW_IOEXPADDR1		0x3F19CU
+#define IDT_SW_IOEXPADDR2		0x3F1A0U
+#define IDT_SW_IOEXPADDR3		0x3F1A4U
+#define IDT_SW_IOEXPADDR4		0x3F1A8U
+#define IDT_SW_IOEXPADDR5		0x3F1ACU
+/* General Purpose Events Control and Status registers (DWORD) */
+#define IDT_SW_GPECTL			0x3F1B0U
+#define IDT_SW_GPESTS			0x3F1B4U
+/* Temperature sensor Control/Status/Alarm/Adjustment/Slope registers */
+#define IDT_SW_TMPCTL			0x3F1D4U
+#define IDT_SW_TMPSTS			0x3F1D8U
+#define IDT_SW_TMPALARM			0x3F1DCU
+#define IDT_SW_TMPADJ			0x3F1E0U
+#define IDT_SW_TSSLOPE			0x3F1E4U
+/* SMBus Configuration Block header log	(DWORD) */
+#define IDT_SW_SMBUSCBHL		0x3F1E8U
+
+/*
+ * Common registers related constants
+ * @IDT_REG_ALIGN:	Registers alignment used in the driver
+ * @IDT_REG_PCI_MAX:	Maximum PCI configuration space register value
+ * @IDT_REG_SW_MAX:	Maximum global register value
+ */
+#define IDT_REG_ALIGN			4
+#define IDT_REG_PCI_MAX			0x00FFFU
+#define IDT_REG_SW_MAX			0x3FFFFU
+
+/*
+ * PCICMDSTS register fields related constants
+ * @IDT_PCICMDSTS_IOAE:	I/O access enable
+ * @IDT_PCICMDSTS_MAE:	Memory access enable
+ * @IDT_PCICMDSTS_BME:	Bus master enable
+ */
+#define IDT_PCICMDSTS_IOAE		0x00000001U
+#define IDT_PCICMDSTS_MAE		0x00000002U
+#define IDT_PCICMDSTS_BME		0x00000004U
+
+/*
+ * PCIEDCAP register fields related constants
+ * @IDT_PCIEDCAP_MPAYLOAD_MASK:	 Maximum payload size mask
+ * @IDT_PCIEDCAP_MPAYLOAD_FLD:	 Maximum payload size field offset
+ * @IDT_PCIEDCAP_MPAYLOAD_S128:	 Max supported payload size of 128 bytes
+ * @IDT_PCIEDCAP_MPAYLOAD_S256:	 Max supported payload size of 256 bytes
+ * @IDT_PCIEDCAP_MPAYLOAD_S512:	 Max supported payload size of 512 bytes
+ * @IDT_PCIEDCAP_MPAYLOAD_S1024: Max supported payload size of 1024 bytes
+ * @IDT_PCIEDCAP_MPAYLOAD_S2048: Max supported payload size of 2048 bytes
+ */
+#define IDT_PCIEDCAP_MPAYLOAD_MASK	0x00000007U
+#define IDT_PCIEDCAP_MPAYLOAD_FLD	0
+#define IDT_PCIEDCAP_MPAYLOAD_S128	0x00000000U
+#define IDT_PCIEDCAP_MPAYLOAD_S256	0x00000001U
+#define IDT_PCIEDCAP_MPAYLOAD_S512	0x00000002U
+#define IDT_PCIEDCAP_MPAYLOAD_S1024	0x00000003U
+#define IDT_PCIEDCAP_MPAYLOAD_S2048	0x00000004U
+
+/*
+ * PCIEDCTLSTS registers fields related constants
+ * @IDT_PCIEDCTL_MPS_MASK:	Maximum payload size mask
+ * @IDT_PCIEDCTL_MPS_FLD:	MPS field offset
+ * @IDT_PCIEDCTL_MPS_S128:	Max payload size of 128 bytes
+ * @IDT_PCIEDCTL_MPS_S256:	Max payload size of 256 bytes
+ * @IDT_PCIEDCTL_MPS_S512:	Max payload size of 512 bytes
+ * @IDT_PCIEDCTL_MPS_S1024:	Max payload size of 1024 bytes
+ * @IDT_PCIEDCTL_MPS_S2048:	Max payload size of 2048 bytes
+ * @IDT_PCIEDCTL_MPS_S4096:	Max payload size of 4096 bytes
+ */
+#define IDT_PCIEDCTLSTS_MPS_MASK	0x000000E0U
+#define IDT_PCIEDCTLSTS_MPS_FLD		5
+#define IDT_PCIEDCTLSTS_MPS_S128	0x00000000U
+#define IDT_PCIEDCTLSTS_MPS_S256	0x00000020U
+#define IDT_PCIEDCTLSTS_MPS_S512	0x00000040U
+#define IDT_PCIEDCTLSTS_MPS_S1024	0x00000060U
+#define IDT_PCIEDCTLSTS_MPS_S2048	0x00000080U
+#define IDT_PCIEDCTLSTS_MPS_S4096	0x000000A0U
+
+/*
+ * PCIELCAP register fields related constants
+ * @IDT_PCIELCAP_PORTNUM_MASK:	Port number field mask
+ * @IDT_PCIELCAP_PORTNUM_FLD:	Port number field offset
+ */
+#define IDT_PCIELCAP_PORTNUM_MASK	0xFF000000U
+#define IDT_PCIELCAP_PORTNUM_FLD	24
+
+/*
+ * PCIELCTLSTS registers fields related constants
+ * @IDT_PCIELSTS_CLS_MASK:	Current link speed mask
+ * @IDT_PCIELSTS_CLS_FLD:	Current link speed field offset
+ * @IDT_PCIELSTS_NLW_MASK:	Negotiated link width mask
+ * @IDT_PCIELSTS_NLW_FLD:	Negotiated link width field offset
+ * @IDT_PCIELSTS_SCLK_COM:	Common slot clock configuration
+ */
+#define IDT_PCIELCTLSTS_CLS_MASK	0x000F0000U
+#define IDT_PCIELCTLSTS_CLS_FLD		16
+#define IDT_PCIELCTLSTS_NLW_MASK	0x03F00000U
+#define IDT_PCIELCTLSTS_NLW_FLD		20
+#define IDT_PCIELCTLSTS_SCLK_COM	0x10000000U
+
+/*
+ * NTCTL register fields related constants
+ * @IDT_NTCTL_IDPROTDIS:	ID Protection check disable (disable MTBL)
+ * @IDT_NTCTL_CPEN:		Completion enable
+ * @IDT_NTCTL_RNS:		Request no snoop processing (if MTBL disabled)
+ * @IDT_NTCTL_ATP:		Address type processing (if MTBL disabled)
+ */
+#define IDT_NTCTL_IDPROTDIS		0x00000001U
+#define IDT_NTCTL_CPEN			0x00000002U
+#define IDT_NTCTL_RNS			0x00000004U
+#define IDT_NTCTL_ATP			0x00000008U
+
+/*
+ * NTINTSTS register fields related constants
+ * @IDT_NTINTSTS_MSG:		Message interrupt bit
+ * @IDT_NTINTSTS_DBELL:		Doorbell interrupt bit
+ * @IDT_NTINTSTS_SEVENT:	Switch Event interrupt bit
+ * @IDT_NTINTSTS_TMPSENSOR:	Temperature sensor interrupt bit
+ */
+#define IDT_NTINTSTS_MSG		0x00000001U
+#define IDT_NTINTSTS_DBELL		0x00000002U
+#define IDT_NTINTSTS_SEVENT		0x00000008U
+#define IDT_NTINTSTS_TMPSENSOR		0x00000080U
+
+/*
+ * NTINTMSK register fields related constants
+ * @IDT_NTINTMSK_MSG:		Message interrupt mask bit
+ * @IDT_NTINTMSK_DBELL:		Doorbell interrupt mask bit
+ * @IDT_NTINTMSK_SEVENT:	Switch Event interrupt mask bit
+ * @IDT_NTINTMSK_TMPSENSOR:	Temperature sensor interrupt mask bit
+ * @IDT_NTINTMSK_ALL:		All the useful interrupts mask
+ */
+#define IDT_NTINTMSK_MSG		0x00000001U
+#define IDT_NTINTMSK_DBELL		0x00000002U
+#define IDT_NTINTMSK_SEVENT		0x00000008U
+#define IDT_NTINTMSK_TMPSENSOR		0x00000080U
+#define IDT_NTINTMSK_ALL \
+	(IDT_NTINTMSK_MSG | IDT_NTINTMSK_DBELL | \
+	 IDT_NTINTMSK_SEVENT | IDT_NTINTMSK_TMPSENSOR)
+
+/*
+ * NTGSIGNAL register fields related constants
+ * @IDT_NTGSIGNAL_SET:	Set global signal of the local partition
+ */
+#define IDT_NTGSIGNAL_SET		0x00000001U
+
+/*
+ * BARSETUP register fields related constants
+ * @IDT_BARSETUP_TYPE_MASK:	Mask of the TYPE field
+ * @IDT_BARSETUP_TYPE_32:	32-bit addressing BAR
+ * @IDT_BARSETUP_TYPE_64:	64-bit addressing BAR
+ * @IDT_BARSETUP_PREF:		Value of the BAR prefetchable field
+ * @IDT_BARSETUP_SIZE_MASK:	Mask of the SIZE field
+ * @IDT_BARSETUP_SIZE_FLD:	SIZE field offset
+ * @IDT_BARSETUP_SIZE_CFG:	SIZE field value in case of config space MODE
+ * @IDT_BARSETUP_MODE_CFG:	Configuration space BAR mode
+ * @IDT_BARSETUP_ATRAN_MASK:	ATRAN field mask
+ * @IDT_BARSETUP_ATRAN_FLD:	ATRAN field offset
+ * @IDT_BARSETUP_ATRAN_DIR:	Direct address translation memory window
+ * @IDT_BARSETUP_ATRAN_LUT12:	12-entry lookup table
+ * @IDT_BARSETUP_ATRAN_LUT24:	24-entry lookup table
+ * @IDT_BARSETUP_TPART_MASK:	TPART field mask
+ * @IDT_BARSETUP_TPART_FLD:	TPART field offset
+ * @IDT_BARSETUP_EN:		BAR enable bit
+ */
+#define IDT_BARSETUP_TYPE_MASK		0x00000006U
+#define IDT_BARSETUP_TYPE_FLD		0
+#define IDT_BARSETUP_TYPE_32		0x00000000U
+#define IDT_BARSETUP_TYPE_64		0x00000004U
+#define IDT_BARSETUP_PREF		0x00000008U
+#define IDT_BARSETUP_SIZE_MASK		0x000003F0U
+#define IDT_BARSETUP_SIZE_FLD		4
+#define IDT_BARSETUP_SIZE_CFG		0x000000C0U
+#define IDT_BARSETUP_MODE_CFG		0x00000400U
+#define IDT_BARSETUP_ATRAN_MASK		0x00001800U
+#define IDT_BARSETUP_ATRAN_FLD		11
+#define IDT_BARSETUP_ATRAN_DIR		0x00000000U
+#define IDT_BARSETUP_ATRAN_LUT12	0x00000800U
+#define IDT_BARSETUP_ATRAN_LUT24	0x00001000U
+#define IDT_BARSETUP_TPART_MASK		0x0000E000U
+#define IDT_BARSETUP_TPART_FLD		13
+#define IDT_BARSETUP_EN			0x80000000U
+
+/*
+ * NTMTBLDATA register fields related constants
+ * @IDT_NTMTBLDATA_VALID:	Set the MTBL entry being valid
+ * @IDT_NTMTBLDATA_REQID_MASK:	Bus:Device:Function field mask
+ * @IDT_NTMTBLDATA_REQID_FLD:	Bus:Device:Function field offset
+ * @IDT_NTMTBLDATA_PART_MASK:	Partition field mask
+ * @IDT_NTMTBLDATA_PART_FLD:	Partition field offset
+ * @IDT_NTMTBLDATA_ATP_TRANS:	Enable AT field translation on request TLPs
+ * @IDT_NTMTBLDATA_CNS_INV:	Enable No Snoop attribute inversion of
+ *				Completion TLPs
+ * @IDT_NTMTBLDATA_RNS_INV:	Enable No Snoop attribute inversion of
+ *				Request TLPs
+ */
+#define IDT_NTMTBLDATA_VALID		0x00000001U
+#define IDT_NTMTBLDATA_REQID_MASK	0x0001FFFEU
+#define IDT_NTMTBLDATA_REQID_FLD	1
+#define IDT_NTMTBLDATA_PART_MASK	0x000E0000U
+#define IDT_NTMTBLDATA_PART_FLD		17
+#define IDT_NTMTBLDATA_ATP_TRANS	0x20000000U
+#define IDT_NTMTBLDATA_CNS_INV		0x40000000U
+#define IDT_NTMTBLDATA_RNS_INV		0x80000000U
+
+/*
+ * REQIDCAP register fields related constants
+ * @IDT_REQIDCAP_REQID_MASK:	Request ID field mask
+ * @IDT_REQIDCAP_REQID_FLD:	Request ID field offset
+ */
+#define IDT_REQIDCAP_REQID_MASK		0x0000FFFFU
+#define IDT_REQIDCAP_REQID_FLD		0
+
+/*
+ * LUTOFFSET register fields related constants
+ * @IDT_LUTOFFSET_INDEX_MASK:	Lookup table index field mask
+ * @IDT_LUTOFFSET_INDEX_FLD:	Lookup table index field offset
+ * @IDT_LUTOFFSET_BAR_MASK:	Lookup table BAR select field mask
+ * @IDT_LUTOFFSET_BAR_FLD:	Lookup table BAR select field offset
+ */
+#define IDT_LUTOFFSET_INDEX_MASK	0x0000001FU
+#define IDT_LUTOFFSET_INDEX_FLD		0
+#define IDT_LUTOFFSET_BAR_MASK		0x00000700U
+#define IDT_LUTOFFSET_BAR_FLD		8
+
+/*
+ * LUTUDATA register fields related constants
+ * @IDT_LUTUDATA_PART_MASK:	Partition field mask
+ * @IDT_LUTUDATA_PART_FLD:	Partition field offset
+ * @IDT_LUTUDATA_VALID:		Lookup table entry valid bit
+ */
+#define IDT_LUTUDATA_PART_MASK		0x0000000FU
+#define IDT_LUTUDATA_PART_FLD		0
+#define IDT_LUTUDATA_VALID		0x80000000U
+
+/*
+ * SWPARTxSTS register fields related constants
+ * @IDT_SWPARTxSTS_SCI:		Switch partition state change initiated
+ * @IDT_SWPARTxSTS_SCC:		Switch partition state change completed
+ * @IDT_SWPARTxSTS_STATE_MASK:	Switch partition state mask
+ * @IDT_SWPARTxSTS_STATE_FLD:	Switch partition state field offset
+ * @IDT_SWPARTxSTS_STATE_DIS:	Switch partition disabled
+ * @IDT_SWPARTxSTS_STATE_ACT:	Switch partition enabled
+ * @IDT_SWPARTxSTS_STATE_RES:	Switch partition in reset
+ * @IDT_SWPARTxSTS_US:		Switch partition has upstream port
+ * @IDT_SWPARTxSTS_USID_MASK:	Switch partition upstream port ID mask
+ * @IDT_SWPARTxSTS_USID_FLD:	Switch partition upstream port ID field offset
+ * @IDT_SWPARTxSTS_NT:		Upstream port has NT function
+ * @IDT_SWPARTxSTS_DMA:		Upstream port has DMA function
+ */
+#define IDT_SWPARTxSTS_SCI		0x00000001U
+#define IDT_SWPARTxSTS_SCC		0x00000002U
+#define IDT_SWPARTxSTS_STATE_MASK	0x00000060U
+#define IDT_SWPARTxSTS_STATE_FLD	5
+#define IDT_SWPARTxSTS_STATE_DIS	0x00000000U
+#define IDT_SWPARTxSTS_STATE_ACT	0x00000020U
+#define IDT_SWPARTxSTS_STATE_RES	0x00000060U
+#define IDT_SWPARTxSTS_US		0x00000100U
+#define IDT_SWPARTxSTS_USID_MASK	0x00003E00U
+#define IDT_SWPARTxSTS_USID_FLD		9
+#define IDT_SWPARTxSTS_NT		0x00004000U
+#define IDT_SWPARTxSTS_DMA		0x00008000U
+
+/*
+ * SWPORTxSTS register fields related constants
+ * @IDT_SWPORTxSTS_OMCI:	Operation mode change initiated
+ * @IDT_SWPORTxSTS_OMCC:	Operation mode change completed
+ * @IDT_SWPORTxSTS_LINKUP:	Link up status
+ * @IDT_SWPORTxSTS_DS:		Port lanes behave as downstream lanes
+ * @IDT_SWPORTxSTS_MODE_MASK:	Port mode field mask
+ * @IDT_SWPORTxSTS_MODE_FLD:	Port mode field offset
+ * @IDT_SWPORTxSTS_MODE_DIS:	Port mode - disabled
+ * @IDT_SWPORTxSTS_MODE_DS:	Port mode - downstream switch port
+ * @IDT_SWPORTxSTS_MODE_US:	Port mode - upstream switch port
+ * @IDT_SWPORTxSTS_MODE_NT:	Port mode - NT function
+ * @IDT_SWPORTxSTS_MODE_USNT:	Port mode - upstream switch port with NTB
+ * @IDT_SWPORTxSTS_MODE_UNAT:	Port mode - unattached
+ * @IDT_SWPORTxSTS_MODE_USDMA:	Port mode - upstream switch port with DMA
+ * @IDT_SWPORTxSTS_MODE_USNTDMA:Port mode - upstream port with NTB and DMA
+ * @IDT_SWPORTxSTS_MODE_NTDMA:	Port mode - NT function with DMA
+ * @IDT_SWPORTxSTS_SWPART_MASK:	Port partition field mask
+ * @IDT_SWPORTxSTS_SWPART_FLD:	Port partition field offset
+ * @IDT_SWPORTxSTS_DEVNUM_MASK:	Port device number field mask
+ * @IDT_SWPORTxSTS_DEVNUM_FLD:	Port device number field offset
+ */
+#define IDT_SWPORTxSTS_OMCI		0x00000001U
+#define IDT_SWPORTxSTS_OMCC		0x00000002U
+#define IDT_SWPORTxSTS_LINKUP		0x00000010U
+#define IDT_SWPORTxSTS_DS		0x00000020U
+#define IDT_SWPORTxSTS_MODE_MASK	0x000003C0U
+#define IDT_SWPORTxSTS_MODE_FLD		6
+#define IDT_SWPORTxSTS_MODE_DIS		0x00000000U
+#define IDT_SWPORTxSTS_MODE_DS		0x00000040U
+#define IDT_SWPORTxSTS_MODE_US		0x00000080U
+#define IDT_SWPORTxSTS_MODE_NT		0x000000C0U
+#define IDT_SWPORTxSTS_MODE_USNT	0x00000100U
+#define IDT_SWPORTxSTS_MODE_UNAT	0x00000140U
+#define IDT_SWPORTxSTS_MODE_USDMA	0x00000180U
+#define IDT_SWPORTxSTS_MODE_USNTDMA	0x000001C0U
+#define IDT_SWPORTxSTS_MODE_NTDMA	0x00000200U
+#define IDT_SWPORTxSTS_SWPART_MASK	0x00001C00U
+#define IDT_SWPORTxSTS_SWPART_FLD	10
+#define IDT_SWPORTxSTS_DEVNUM_MASK	0x001F0000U
+#define IDT_SWPORTxSTS_DEVNUM_FLD	16
+
+/*
+ * SEMSK register fields related constants
+ * @IDT_SEMSK_LINKUP:	Link Up event mask bit
+ * @IDT_SEMSK_LINKDN:	Link Down event mask bit
+ * @IDT_SEMSK_GSIGNAL:	Global Signal event mask bit
+ */
+#define IDT_SEMSK_LINKUP		0x00000001U
+#define IDT_SEMSK_LINKDN		0x00000002U
+#define IDT_SEMSK_GSIGNAL		0x00000020U
+
+/*
+ * SWPxMSGCTL register fields related constants
+ * @IDT_SWPxMSGCTL_REG_MASK:	Register select field mask
+ * @IDT_SWPxMSGCTL_REG_FLD:	Register select field offset
+ * @IDT_SWPxMSGCTL_PART_MASK:	Partition select field mask
+ * @IDT_SWPxMSGCTL_PART_FLD:	Partition select field offset
+ */
+#define IDT_SWPxMSGCTL_REG_MASK		0x00000003U
+#define IDT_SWPxMSGCTL_REG_FLD		0
+#define IDT_SWPxMSGCTL_PART_MASK	0x00000070U
+#define IDT_SWPxMSGCTL_PART_FLD		4
+
+/*
+ * TMPSTS register fields related constants
+ * @IDT_TMPSTS_TEMP_MASK:	Current temperature field mask
+ * @IDT_TMPSTS_TEMP_FLD:	Current temperature field offset
+ */
+#define IDT_TMPSTS_TEMP_MASK		0x000000FFU
+#define IDT_TMPSTS_TEMP_FLD		0
+
+/*
+ * Helper macro to get/set the corresponding field value
+ * @GET_FIELD:		Retrieve the value of the corresponding field
+ * @SET_FIELD:		Set the specified field up
+ * @IS_FLD_SET:		Check whether a field is set with value
+ */
+#define GET_FIELD(field, data) \
+	(((u32)(data) & IDT_ ##field## _MASK) >> IDT_ ##field## _FLD)
+#define SET_FIELD(field, data, value) \
+	(((u32)(data) & ~IDT_ ##field## _MASK) | \
+	 ((u32)(value) << IDT_ ##field## _FLD))
+#define IS_FLD_SET(field, data, value) \
+	(((u32)(data) & IDT_ ##field## _MASK) == IDT_ ##field## _ ##value)
+
+/*
+ * Useful registers masks:
+ * @IDT_DBELL_MASK:	Doorbell bits mask
+ * @IDT_OUTMSG_MASK:	Out messages status bits mask
+ * @IDT_INMSG_MASK:	In messages status bits mask
+ * @IDT_MSG_MASK:	Any message status bits mask
+ */
+#define IDT_DBELL_MASK		((u32)0xFFFFFFFFU)
+#define IDT_OUTMSG_MASK		((u32)0x0000000FU)
+#define IDT_INMSG_MASK		((u32)0x000F0000U)
+#define IDT_MSG_MASK		(IDT_INMSG_MASK | IDT_OUTMSG_MASK)
+
+/*
+ * Number of IDT NTB resources:
+ * @IDT_MSG_CNT:	Number of Message registers
+ * @IDT_BAR_CNT:	Number of BARs of each port
+ * @IDT_MTBL_ENTRY_CNT:	Number mapping table entries
+ */
+#define IDT_MSG_CNT		4
+#define IDT_BAR_CNT		6
+#define IDT_MTBL_ENTRY_CNT	64
+
+/*
+ * General IDT PCIe-switch constant
+ * @IDT_MAX_NR_PORTS:	Maximum number of ports per IDT PCIe-switch
+ * @IDT_MAX_NR_PARTS:	Maximum number of partitions per IDT PCIe-switch
+ * @IDT_MAX_NR_PEERS:	Maximum number of NT-peers per IDT PCIe-switch
+ * @IDT_MAX_NR_MWS:	Maximum number of Memory Widows
+ * @IDT_PCIE_REGSIZE:	Size of the registers in bytes
+ * @IDT_TRANS_ALIGN:	Alignment of translated base address
+ * @IDT_DIR_SIZE_ALIGN:	Alignment of size setting for direct translated MWs.
+ *			Even though the lower 10 bits are reserved, they are
+ *			treated by IDT as one's so basically there is no any
+ *			alignment of size limit for DIR address translation.
+ */
+#define IDT_MAX_NR_PORTS	24
+#define IDT_MAX_NR_PARTS	8
+#define IDT_MAX_NR_PEERS	8
+#define IDT_MAX_NR_MWS		29
+#define IDT_PCIE_REGSIZE	4
+#define IDT_TRANS_ALIGN		4
+#define IDT_DIR_SIZE_ALIGN	1
+
+/*
+ * IDT Memory Windows type. Depending on the device settings, IDT supports
+ * Direct Address Translation MW registers and Lookup Table registers
+ * @IDT_MW_DIR:		Direct address translation
+ * @IDT_MW_LUT12:	12-entry lookup table entry
+ * @IDT_MW_LUT24:	24-entry lookup table entry
+ *
+ * NOTE These values are exactly the same as one of the BARSETUP ATRAN field
+ */
+enum idt_mw_type {
+	IDT_MW_DIR = 0x0,
+	IDT_MW_LUT12 = 0x1,
+	IDT_MW_LUT24 = 0x2
+};
+
+/*
+ * IDT PCIe-switch model private data
+ * @name:	Device name
+ * @port_cnt:	Total number of NT endpoint ports
+ * @ports:	Port ids
+ */
+struct idt_89hpes_cfg {
+	char *name;
+	unsigned char port_cnt;
+	unsigned char ports[];
+};
+
+/*
+ * Memory window configuration structure
+ * @type:	Type of the memory window (direct address translation or lookup
+ *		table)
+ *
+ * @bar:	PCIe BAR the memory window referenced to
+ * @idx:	Index of the memory window within the BAR
+ *
+ * @addr_align:	Alignment of translated address
+ * @size_align:	Alignment of memory window size
+ * @size_max:	Maximum size of memory window
+ */
+struct idt_mw_cfg {
+	enum idt_mw_type type;
+
+	unsigned char bar;
+	unsigned char idx;
+
+	u64 addr_align;
+	u64 size_align;
+	u64 size_max;
+};
+
+/*
+ * Description structure of peer IDT NT-functions:
+ * @port:		NT-function port
+ * @part:		NT-function partition
+ *
+ * @mw_cnt:		Number of memory windows supported by NT-function
+ * @mws:		Array of memory windows descriptors
+ */
+struct idt_ntb_peer {
+	unsigned char port;
+	unsigned char part;
+
+	unsigned char mw_cnt;
+	struct idt_mw_cfg *mws;
+};
+
+/*
+ * Description structure of local IDT NT-function:
+ * @ntb:		Linux NTB-device description structure
+ * @swcfg:		Pointer to the structure of local IDT PCIe-switch
+ *			specific cofnfigurations
+ *
+ * @port:		Local NT-function port
+ * @part:		Local NT-function partition
+ *
+ * @peer_cnt:		Number of peers with activated NTB-function
+ * @peers:		Array of peers descripting structures
+ * @port_idx_map:	Map of port number -> peer index
+ * @part_idx_map:	Map of partition number -> peer index
+ *
+ * @mtbl_lock:		Mapping table access lock
+ *
+ * @mw_cnt:		Number of memory windows supported by NT-function
+ * @mws:		Array of memory windows descriptors
+ * @lut_lock:		Lookup table access lock
+ *
+ * @msg_locks:		Message registers mapping table lockers
+ *
+ * @cfgspc:		Virtual address of the memory mapped configuration
+ *			space of the NT-function
+ * @db_mask_lock:	Doorbell mask register lock
+ * @msg_mask_lock:	Message mask register lock
+ * @gasa_lock:		GASA registers access lock
+ *
+ * @dbgfs_info:		DebugFS info node
+ */
+struct idt_ntb_dev {
+	struct ntb_dev ntb;
+	struct idt_89hpes_cfg *swcfg;
+
+	unsigned char port;
+	unsigned char part;
+
+	unsigned char peer_cnt;
+	struct idt_ntb_peer peers[IDT_MAX_NR_PEERS];
+	char port_idx_map[IDT_MAX_NR_PORTS];
+	char part_idx_map[IDT_MAX_NR_PARTS];
+
+	spinlock_t mtbl_lock;
+
+	unsigned char mw_cnt;
+	struct idt_mw_cfg *mws;
+	spinlock_t lut_lock;
+
+	spinlock_t msg_locks[IDT_MSG_CNT];
+
+	void __iomem *cfgspc;
+	spinlock_t db_mask_lock;
+	spinlock_t msg_mask_lock;
+	spinlock_t gasa_lock;
+
+	struct dentry *dbgfs_info;
+};
+#define to_ndev_ntb(__ntb) container_of(__ntb, struct idt_ntb_dev, ntb)
+
+/*
+ * Descriptor of the IDT PCIe-switch BAR resources
+ * @setup:	BAR setup register
+ * @limit:	BAR limit register
+ * @ltbase:	Lower translated base address
+ * @utbase:	Upper translated base address
+ */
+struct idt_ntb_bar {
+	unsigned int setup;
+	unsigned int limit;
+	unsigned int ltbase;
+	unsigned int utbase;
+};
+
+/*
+ * Descriptor of the IDT PCIe-switch message resources
+ * @in:		Inbound message register
+ * @out:	Outbound message register
+ * @src:	Source of inbound message register
+ */
+struct idt_ntb_msg {
+	unsigned int in;
+	unsigned int out;
+	unsigned int src;
+};
+
+/*
+ * Descriptor of the IDT PCIe-switch NT-function specific parameters in the
+ * PCI Configuration Space
+ * @bars:	BARs related registers
+ * @msgs:	Messaging related registers
+ */
+struct idt_ntb_regs {
+	struct idt_ntb_bar bars[IDT_BAR_CNT];
+	struct idt_ntb_msg msgs[IDT_MSG_CNT];
+};
+
+/*
+ * Descriptor of the IDT PCIe-switch port specific parameters in the
+ * Global Configuration Space
+ * @pcicmdsts:	 PCI command/status register
+ * @pcielctlsts: PCIe link control/status
+ *
+ * @ctl:	Port control register
+ * @sts:	Port status register
+ *
+ * @bars:	BARs related registers
+ */
+struct idt_ntb_port {
+	unsigned int pcicmdsts;
+	unsigned int pcielctlsts;
+	unsigned int ntctl;
+
+	unsigned int ctl;
+	unsigned int sts;
+
+	struct idt_ntb_bar bars[IDT_BAR_CNT];
+};
+
+/*
+ * Descriptor of the IDT PCIe-switch partition specific parameters.
+ * @ctl:	Partition control register in the Global Address Space
+ * @sts:	Partition status register in the Global Address Space
+ * @msgctl:	Messages control registers
+ */
+struct idt_ntb_part {
+	unsigned int ctl;
+	unsigned int sts;
+	unsigned int msgctl[IDT_MSG_CNT];
+};
+
+#endif /* NTB_HW_IDT_H */
diff --git a/drivers/ntb/hw/intel/ntb_hw_intel.c b/drivers/ntb/hw/intel/ntb_hw_intel.c
index 7b3b6fd63d7d..2557e2c05b90 100644
--- a/drivers/ntb/hw/intel/ntb_hw_intel.c
+++ b/drivers/ntb/hw/intel/ntb_hw_intel.c
@@ -6,6 +6,7 @@
  *
  *   Copyright(c) 2012 Intel Corporation. All rights reserved.
  *   Copyright (C) 2015 EMC Corporation. All Rights Reserved.
+ *   Copyright (C) 2016 T-Platforms. All Rights Reserved.
  *
  *   This program is free software; you can redistribute it and/or modify
  *   it under the terms of version 2 of the GNU General Public License as
@@ -15,6 +16,7 @@
  *
  *   Copyright(c) 2012 Intel Corporation. All rights reserved.
  *   Copyright (C) 2015 EMC Corporation. All Rights Reserved.
+ *   Copyright (C) 2016 T-Platforms. All Rights Reserved.
  *
  *   Redistribution and use in source and binary forms, with or without
  *   modification, are permitted provided that the following conditions
@@ -270,12 +272,12 @@ static inline int ndev_db_addr(struct intel_ntb_dev *ndev,
 
 	if (db_addr) {
 		*db_addr = reg_addr + reg;
-		dev_dbg(ndev_dev(ndev), "Peer db addr %llx\n", *db_addr);
+		dev_dbg(&ndev->ntb.pdev->dev, "Peer db addr %llx\n", *db_addr);
 	}
 
 	if (db_size) {
 		*db_size = ndev->reg->db_size;
-		dev_dbg(ndev_dev(ndev), "Peer db size %llx\n", *db_size);
+		dev_dbg(&ndev->ntb.pdev->dev, "Peer db size %llx\n", *db_size);
 	}
 
 	return 0;
@@ -368,7 +370,8 @@ static inline int ndev_spad_addr(struct intel_ntb_dev *ndev, int idx,
 
 	if (spad_addr) {
 		*spad_addr = reg_addr + reg + (idx << 2);
-		dev_dbg(ndev_dev(ndev), "Peer spad addr %llx\n", *spad_addr);
+		dev_dbg(&ndev->ntb.pdev->dev, "Peer spad addr %llx\n",
+			*spad_addr);
 	}
 
 	return 0;
@@ -409,7 +412,7 @@ static irqreturn_t ndev_interrupt(struct intel_ntb_dev *ndev, int vec)
 	if ((ndev->hwerr_flags & NTB_HWERR_MSIX_VECTOR32_BAD) && (vec == 31))
 		vec_mask |= ndev->db_link_mask;
 
-	dev_dbg(ndev_dev(ndev), "vec %d vec_mask %llx\n", vec, vec_mask);
+	dev_dbg(&ndev->ntb.pdev->dev, "vec %d vec_mask %llx\n", vec, vec_mask);
 
 	ndev->last_ts = jiffies;
 
@@ -428,7 +431,7 @@ static irqreturn_t ndev_vec_isr(int irq, void *dev)
 {
 	struct intel_ntb_vec *nvec = dev;
 
-	dev_dbg(ndev_dev(nvec->ndev), "irq: %d  nvec->num: %d\n",
+	dev_dbg(&nvec->ndev->ntb.pdev->dev, "irq: %d  nvec->num: %d\n",
 		irq, nvec->num);
 
 	return ndev_interrupt(nvec->ndev, nvec->num);
@@ -438,7 +441,7 @@ static irqreturn_t ndev_irq_isr(int irq, void *dev)
 {
 	struct intel_ntb_dev *ndev = dev;
 
-	return ndev_interrupt(ndev, irq - ndev_pdev(ndev)->irq);
+	return ndev_interrupt(ndev, irq - ndev->ntb.pdev->irq);
 }
 
 static int ndev_init_isr(struct intel_ntb_dev *ndev,
@@ -448,7 +451,7 @@ static int ndev_init_isr(struct intel_ntb_dev *ndev,
 	struct pci_dev *pdev;
 	int rc, i, msix_count, node;
 
-	pdev = ndev_pdev(ndev);
+	pdev = ndev->ntb.pdev;
 
 	node = dev_to_node(&pdev->dev);
 
@@ -487,7 +490,7 @@ static int ndev_init_isr(struct intel_ntb_dev *ndev,
 			goto err_msix_request;
 	}
 
-	dev_dbg(ndev_dev(ndev), "Using %d msix interrupts\n", msix_count);
+	dev_dbg(&pdev->dev, "Using %d msix interrupts\n", msix_count);
 	ndev->db_vec_count = msix_count;
 	ndev->db_vec_shift = msix_shift;
 	return 0;
@@ -515,7 +518,7 @@ err_msix_vec_alloc:
 	if (rc)
 		goto err_msi_request;
 
-	dev_dbg(ndev_dev(ndev), "Using msi interrupts\n");
+	dev_dbg(&pdev->dev, "Using msi interrupts\n");
 	ndev->db_vec_count = 1;
 	ndev->db_vec_shift = total_shift;
 	return 0;
@@ -533,7 +536,7 @@ err_msi_enable:
 	if (rc)
 		goto err_intx_request;
 
-	dev_dbg(ndev_dev(ndev), "Using intx interrupts\n");
+	dev_dbg(&pdev->dev, "Using intx interrupts\n");
 	ndev->db_vec_count = 1;
 	ndev->db_vec_shift = total_shift;
 	return 0;
@@ -547,7 +550,7 @@ static void ndev_deinit_isr(struct intel_ntb_dev *ndev)
 	struct pci_dev *pdev;
 	int i;
 
-	pdev = ndev_pdev(ndev);
+	pdev = ndev->ntb.pdev;
 
 	/* Mask all doorbell interrupts */
 	ndev->db_mask = ndev->db_valid_mask;
@@ -744,7 +747,7 @@ static ssize_t ndev_ntb_debugfs_read(struct file *filp, char __user *ubuf,
 	union { u64 v64; u32 v32; u16 v16; u8 v8; } u;
 
 	ndev = filp->private_data;
-	pdev = ndev_pdev(ndev);
+	pdev = ndev->ntb.pdev;
 	mmio = ndev->self_mmio;
 
 	buf_size = min(count, 0x800ul);
@@ -1019,7 +1022,8 @@ static void ndev_init_debugfs(struct intel_ntb_dev *ndev)
 		ndev->debugfs_info = NULL;
 	} else {
 		ndev->debugfs_dir =
-			debugfs_create_dir(ndev_name(ndev), debugfs_dir);
+			debugfs_create_dir(pci_name(ndev->ntb.pdev),
+					   debugfs_dir);
 		if (!ndev->debugfs_dir)
 			ndev->debugfs_info = NULL;
 		else
@@ -1035,20 +1039,26 @@ static void ndev_deinit_debugfs(struct intel_ntb_dev *ndev)
 	debugfs_remove_recursive(ndev->debugfs_dir);
 }
 
-static int intel_ntb_mw_count(struct ntb_dev *ntb)
+static int intel_ntb_mw_count(struct ntb_dev *ntb, int pidx)
 {
+	if (pidx != NTB_DEF_PEER_IDX)
+		return -EINVAL;
+
 	return ntb_ndev(ntb)->mw_count;
 }
 
-static int intel_ntb_mw_get_range(struct ntb_dev *ntb, int idx,
-				  phys_addr_t *base,
-				  resource_size_t *size,
-				  resource_size_t *align,
-				  resource_size_t *align_size)
+static int intel_ntb_mw_get_align(struct ntb_dev *ntb, int pidx, int idx,
+				  resource_size_t *addr_align,
+				  resource_size_t *size_align,
+				  resource_size_t *size_max)
 {
 	struct intel_ntb_dev *ndev = ntb_ndev(ntb);
+	resource_size_t bar_size, mw_size;
 	int bar;
 
+	if (pidx != NTB_DEF_PEER_IDX)
+		return -EINVAL;
+
 	if (idx >= ndev->b2b_idx && !ndev->b2b_off)
 		idx += 1;
 
@@ -1056,24 +1066,26 @@ static int intel_ntb_mw_get_range(struct ntb_dev *ntb, int idx,
 	if (bar < 0)
 		return bar;
 
-	if (base)
-		*base = pci_resource_start(ndev->ntb.pdev, bar) +
-			(idx == ndev->b2b_idx ? ndev->b2b_off : 0);
+	bar_size = pci_resource_len(ndev->ntb.pdev, bar);
 
-	if (size)
-		*size = pci_resource_len(ndev->ntb.pdev, bar) -
-			(idx == ndev->b2b_idx ? ndev->b2b_off : 0);
+	if (idx == ndev->b2b_idx)
+		mw_size = bar_size - ndev->b2b_off;
+	else
+		mw_size = bar_size;
+
+	if (addr_align)
+		*addr_align = pci_resource_len(ndev->ntb.pdev, bar);
 
-	if (align)
-		*align = pci_resource_len(ndev->ntb.pdev, bar);
+	if (size_align)
+		*size_align = 1;
 
-	if (align_size)
-		*align_size = 1;
+	if (size_max)
+		*size_max = mw_size;
 
 	return 0;
 }
 
-static int intel_ntb_mw_set_trans(struct ntb_dev *ntb, int idx,
+static int intel_ntb_mw_set_trans(struct ntb_dev *ntb, int pidx, int idx,
 				  dma_addr_t addr, resource_size_t size)
 {
 	struct intel_ntb_dev *ndev = ntb_ndev(ntb);
@@ -1083,6 +1095,9 @@ static int intel_ntb_mw_set_trans(struct ntb_dev *ntb, int idx,
 	u64 base, limit, reg_val;
 	int bar;
 
+	if (pidx != NTB_DEF_PEER_IDX)
+		return -EINVAL;
+
 	if (idx >= ndev->b2b_idx && !ndev->b2b_off)
 		idx += 1;
 
@@ -1171,7 +1186,7 @@ static int intel_ntb_mw_set_trans(struct ntb_dev *ntb, int idx,
 	return 0;
 }
 
-static int intel_ntb_link_is_up(struct ntb_dev *ntb,
+static u64 intel_ntb_link_is_up(struct ntb_dev *ntb,
 				enum ntb_speed *speed,
 				enum ntb_width *width)
 {
@@ -1206,13 +1221,13 @@ static int intel_ntb_link_enable(struct ntb_dev *ntb,
 	if (ndev->ntb.topo == NTB_TOPO_SEC)
 		return -EINVAL;
 
-	dev_dbg(ndev_dev(ndev),
+	dev_dbg(&ntb->pdev->dev,
 		"Enabling link with max_speed %d max_width %d\n",
 		max_speed, max_width);
 	if (max_speed != NTB_SPEED_AUTO)
-		dev_dbg(ndev_dev(ndev), "ignoring max_speed %d\n", max_speed);
+		dev_dbg(&ntb->pdev->dev, "ignoring max_speed %d\n", max_speed);
 	if (max_width != NTB_WIDTH_AUTO)
-		dev_dbg(ndev_dev(ndev), "ignoring max_width %d\n", max_width);
+		dev_dbg(&ntb->pdev->dev, "ignoring max_width %d\n", max_width);
 
 	ntb_ctl = ioread32(ndev->self_mmio + ndev->reg->ntb_ctl);
 	ntb_ctl &= ~(NTB_CTL_DISABLE | NTB_CTL_CFG_LOCK);
@@ -1235,7 +1250,7 @@ static int intel_ntb_link_disable(struct ntb_dev *ntb)
 	if (ndev->ntb.topo == NTB_TOPO_SEC)
 		return -EINVAL;
 
-	dev_dbg(ndev_dev(ndev), "Disabling link\n");
+	dev_dbg(&ntb->pdev->dev, "Disabling link\n");
 
 	/* Bring NTB link down */
 	ntb_cntl = ioread32(ndev->self_mmio + ndev->reg->ntb_ctl);
@@ -1249,6 +1264,36 @@ static int intel_ntb_link_disable(struct ntb_dev *ntb)
 	return 0;
 }
 
+static int intel_ntb_peer_mw_count(struct ntb_dev *ntb)
+{
+	/* Numbers of inbound and outbound memory windows match */
+	return ntb_ndev(ntb)->mw_count;
+}
+
+static int intel_ntb_peer_mw_get_addr(struct ntb_dev *ntb, int idx,
+				     phys_addr_t *base, resource_size_t *size)
+{
+	struct intel_ntb_dev *ndev = ntb_ndev(ntb);
+	int bar;
+
+	if (idx >= ndev->b2b_idx && !ndev->b2b_off)
+		idx += 1;
+
+	bar = ndev_mw_to_bar(ndev, idx);
+	if (bar < 0)
+		return bar;
+
+	if (base)
+		*base = pci_resource_start(ndev->ntb.pdev, bar) +
+			(idx == ndev->b2b_idx ? ndev->b2b_off : 0);
+
+	if (size)
+		*size = pci_resource_len(ndev->ntb.pdev, bar) -
+			(idx == ndev->b2b_idx ? ndev->b2b_off : 0);
+
+	return 0;
+}
+
 static int intel_ntb_db_is_unsafe(struct ntb_dev *ntb)
 {
 	return ndev_ignore_unsafe(ntb_ndev(ntb), NTB_UNSAFE_DB);
@@ -1366,30 +1411,30 @@ static int intel_ntb_spad_write(struct ntb_dev *ntb,
 			       ndev->self_reg->spad);
 }
 
-static int intel_ntb_peer_spad_addr(struct ntb_dev *ntb, int idx,
+static int intel_ntb_peer_spad_addr(struct ntb_dev *ntb, int pidx, int sidx,
 				    phys_addr_t *spad_addr)
 {
 	struct intel_ntb_dev *ndev = ntb_ndev(ntb);
 
-	return ndev_spad_addr(ndev, idx, spad_addr, ndev->peer_addr,
+	return ndev_spad_addr(ndev, sidx, spad_addr, ndev->peer_addr,
 			      ndev->peer_reg->spad);
 }
 
-static u32 intel_ntb_peer_spad_read(struct ntb_dev *ntb, int idx)
+static u32 intel_ntb_peer_spad_read(struct ntb_dev *ntb, int pidx, int sidx)
 {
 	struct intel_ntb_dev *ndev = ntb_ndev(ntb);
 
-	return ndev_spad_read(ndev, idx,
+	return ndev_spad_read(ndev, sidx,
 			      ndev->peer_mmio +
 			      ndev->peer_reg->spad);
 }
 
-static int intel_ntb_peer_spad_write(struct ntb_dev *ntb,
-				     int idx, u32 val)
+static int intel_ntb_peer_spad_write(struct ntb_dev *ntb, int pidx,
+				     int sidx, u32 val)
 {
 	struct intel_ntb_dev *ndev = ntb_ndev(ntb);
 
-	return ndev_spad_write(ndev, idx, val,
+	return ndev_spad_write(ndev, sidx, val,
 			       ndev->peer_mmio +
 			       ndev->peer_reg->spad);
 }
@@ -1442,30 +1487,33 @@ static int atom_link_is_err(struct intel_ntb_dev *ndev)
 
 static inline enum ntb_topo atom_ppd_topo(struct intel_ntb_dev *ndev, u32 ppd)
 {
+	struct device *dev = &ndev->ntb.pdev->dev;
+
 	switch (ppd & ATOM_PPD_TOPO_MASK) {
 	case ATOM_PPD_TOPO_B2B_USD:
-		dev_dbg(ndev_dev(ndev), "PPD %d B2B USD\n", ppd);
+		dev_dbg(dev, "PPD %d B2B USD\n", ppd);
 		return NTB_TOPO_B2B_USD;
 
 	case ATOM_PPD_TOPO_B2B_DSD:
-		dev_dbg(ndev_dev(ndev), "PPD %d B2B DSD\n", ppd);
+		dev_dbg(dev, "PPD %d B2B DSD\n", ppd);
 		return NTB_TOPO_B2B_DSD;
 
 	case ATOM_PPD_TOPO_PRI_USD:
 	case ATOM_PPD_TOPO_PRI_DSD: /* accept bogus PRI_DSD */
 	case ATOM_PPD_TOPO_SEC_USD:
 	case ATOM_PPD_TOPO_SEC_DSD: /* accept bogus SEC_DSD */
-		dev_dbg(ndev_dev(ndev), "PPD %d non B2B disabled\n", ppd);
+		dev_dbg(dev, "PPD %d non B2B disabled\n", ppd);
 		return NTB_TOPO_NONE;
 	}
 
-	dev_dbg(ndev_dev(ndev), "PPD %d invalid\n", ppd);
+	dev_dbg(dev, "PPD %d invalid\n", ppd);
 	return NTB_TOPO_NONE;
 }
 
 static void atom_link_hb(struct work_struct *work)
 {
 	struct intel_ntb_dev *ndev = hb_ndev(work);
+	struct device *dev = &ndev->ntb.pdev->dev;
 	unsigned long poll_ts;
 	void __iomem *mmio;
 	u32 status32;
@@ -1503,30 +1551,30 @@ static void atom_link_hb(struct work_struct *work)
 
 	/* Clear AER Errors, write to clear */
 	status32 = ioread32(mmio + ATOM_ERRCORSTS_OFFSET);
-	dev_dbg(ndev_dev(ndev), "ERRCORSTS = %x\n", status32);
+	dev_dbg(dev, "ERRCORSTS = %x\n", status32);
 	status32 &= PCI_ERR_COR_REP_ROLL;
 	iowrite32(status32, mmio + ATOM_ERRCORSTS_OFFSET);
 
 	/* Clear unexpected electrical idle event in LTSSM, write to clear */
 	status32 = ioread32(mmio + ATOM_LTSSMERRSTS0_OFFSET);
-	dev_dbg(ndev_dev(ndev), "LTSSMERRSTS0 = %x\n", status32);
+	dev_dbg(dev, "LTSSMERRSTS0 = %x\n", status32);
 	status32 |= ATOM_LTSSMERRSTS0_UNEXPECTEDEI;
 	iowrite32(status32, mmio + ATOM_LTSSMERRSTS0_OFFSET);
 
 	/* Clear DeSkew Buffer error, write to clear */
 	status32 = ioread32(mmio + ATOM_DESKEWSTS_OFFSET);
-	dev_dbg(ndev_dev(ndev), "DESKEWSTS = %x\n", status32);
+	dev_dbg(dev, "DESKEWSTS = %x\n", status32);
 	status32 |= ATOM_DESKEWSTS_DBERR;
 	iowrite32(status32, mmio + ATOM_DESKEWSTS_OFFSET);
 
 	status32 = ioread32(mmio + ATOM_IBSTERRRCRVSTS0_OFFSET);
-	dev_dbg(ndev_dev(ndev), "IBSTERRRCRVSTS0 = %x\n", status32);
+	dev_dbg(dev, "IBSTERRRCRVSTS0 = %x\n", status32);
 	status32 &= ATOM_IBIST_ERR_OFLOW;
 	iowrite32(status32, mmio + ATOM_IBSTERRRCRVSTS0_OFFSET);
 
 	/* Releases the NTB state machine to allow the link to retrain */
 	status32 = ioread32(mmio + ATOM_LTSSMSTATEJMP_OFFSET);
-	dev_dbg(ndev_dev(ndev), "LTSSMSTATEJMP = %x\n", status32);
+	dev_dbg(dev, "LTSSMSTATEJMP = %x\n", status32);
 	status32 &= ~ATOM_LTSSMSTATEJMP_FORCEDETECT;
 	iowrite32(status32, mmio + ATOM_LTSSMSTATEJMP_OFFSET);
 
@@ -1699,11 +1747,11 @@ static int skx_setup_b2b_mw(struct intel_ntb_dev *ndev,
 	int b2b_bar;
 	u8 bar_sz;
 
-	pdev = ndev_pdev(ndev);
+	pdev = ndev->ntb.pdev;
 	mmio = ndev->self_mmio;
 
 	if (ndev->b2b_idx == UINT_MAX) {
-		dev_dbg(ndev_dev(ndev), "not using b2b mw\n");
+		dev_dbg(&pdev->dev, "not using b2b mw\n");
 		b2b_bar = 0;
 		ndev->b2b_off = 0;
 	} else {
@@ -1711,24 +1759,21 @@ static int skx_setup_b2b_mw(struct intel_ntb_dev *ndev,
 		if (b2b_bar < 0)
 			return -EIO;
 
-		dev_dbg(ndev_dev(ndev), "using b2b mw bar %d\n", b2b_bar);
+		dev_dbg(&pdev->dev, "using b2b mw bar %d\n", b2b_bar);
 
 		bar_size = pci_resource_len(ndev->ntb.pdev, b2b_bar);
 
-		dev_dbg(ndev_dev(ndev), "b2b bar size %#llx\n", bar_size);
+		dev_dbg(&pdev->dev, "b2b bar size %#llx\n", bar_size);
 
 		if (b2b_mw_share && ((bar_size >> 1) >= XEON_B2B_MIN_SIZE)) {
-			dev_dbg(ndev_dev(ndev),
-				"b2b using first half of bar\n");
+			dev_dbg(&pdev->dev, "b2b using first half of bar\n");
 			ndev->b2b_off = bar_size >> 1;
 		} else if (bar_size >= XEON_B2B_MIN_SIZE) {
-			dev_dbg(ndev_dev(ndev),
-				"b2b using whole bar\n");
+			dev_dbg(&pdev->dev, "b2b using whole bar\n");
 			ndev->b2b_off = 0;
 			--ndev->mw_count;
 		} else {
-			dev_dbg(ndev_dev(ndev),
-				"b2b bar size is too small\n");
+			dev_dbg(&pdev->dev, "b2b bar size is too small\n");
 			return -EIO;
 		}
 	}
@@ -1738,7 +1783,7 @@ static int skx_setup_b2b_mw(struct intel_ntb_dev *ndev,
 	 * except disable or halve the size of the b2b secondary bar.
 	 */
 	pci_read_config_byte(pdev, SKX_IMBAR1SZ_OFFSET, &bar_sz);
-	dev_dbg(ndev_dev(ndev), "IMBAR1SZ %#x\n", bar_sz);
+	dev_dbg(&pdev->dev, "IMBAR1SZ %#x\n", bar_sz);
 	if (b2b_bar == 1) {
 		if (ndev->b2b_off)
 			bar_sz -= 1;
@@ -1748,10 +1793,10 @@ static int skx_setup_b2b_mw(struct intel_ntb_dev *ndev,
 
 	pci_write_config_byte(pdev, SKX_EMBAR1SZ_OFFSET, bar_sz);
 	pci_read_config_byte(pdev, SKX_EMBAR1SZ_OFFSET, &bar_sz);
-	dev_dbg(ndev_dev(ndev), "EMBAR1SZ %#x\n", bar_sz);
+	dev_dbg(&pdev->dev, "EMBAR1SZ %#x\n", bar_sz);
 
 	pci_read_config_byte(pdev, SKX_IMBAR2SZ_OFFSET, &bar_sz);
-	dev_dbg(ndev_dev(ndev), "IMBAR2SZ %#x\n", bar_sz);
+	dev_dbg(&pdev->dev, "IMBAR2SZ %#x\n", bar_sz);
 	if (b2b_bar == 2) {
 		if (ndev->b2b_off)
 			bar_sz -= 1;
@@ -1761,7 +1806,7 @@ static int skx_setup_b2b_mw(struct intel_ntb_dev *ndev,
 
 	pci_write_config_byte(pdev, SKX_EMBAR2SZ_OFFSET, bar_sz);
 	pci_read_config_byte(pdev, SKX_EMBAR2SZ_OFFSET, &bar_sz);
-	dev_dbg(ndev_dev(ndev), "EMBAR2SZ %#x\n", bar_sz);
+	dev_dbg(&pdev->dev, "EMBAR2SZ %#x\n", bar_sz);
 
 	/* SBAR01 hit by first part of the b2b bar */
 	if (b2b_bar == 0)
@@ -1777,12 +1822,12 @@ static int skx_setup_b2b_mw(struct intel_ntb_dev *ndev,
 	bar_addr = addr->bar2_addr64 + (b2b_bar == 1 ? ndev->b2b_off : 0);
 	iowrite64(bar_addr, mmio + SKX_IMBAR1XLMT_OFFSET);
 	bar_addr = ioread64(mmio + SKX_IMBAR1XLMT_OFFSET);
-	dev_dbg(ndev_dev(ndev), "IMBAR1XLMT %#018llx\n", bar_addr);
+	dev_dbg(&pdev->dev, "IMBAR1XLMT %#018llx\n", bar_addr);
 
 	bar_addr = addr->bar4_addr64 + (b2b_bar == 2 ? ndev->b2b_off : 0);
 	iowrite64(bar_addr, mmio + SKX_IMBAR2XLMT_OFFSET);
 	bar_addr = ioread64(mmio + SKX_IMBAR2XLMT_OFFSET);
-	dev_dbg(ndev_dev(ndev), "IMBAR2XLMT %#018llx\n", bar_addr);
+	dev_dbg(&pdev->dev, "IMBAR2XLMT %#018llx\n", bar_addr);
 
 	/* zero incoming translation addrs */
 	iowrite64(0, mmio + SKX_IMBAR1XBASE_OFFSET);
@@ -1852,7 +1897,7 @@ static int skx_init_dev(struct intel_ntb_dev *ndev)
 	u8 ppd;
 	int rc;
 
-	pdev = ndev_pdev(ndev);
+	pdev = ndev->ntb.pdev;
 
 	ndev->reg = &skx_reg;
 
@@ -1861,7 +1906,7 @@ static int skx_init_dev(struct intel_ntb_dev *ndev)
 		return -EIO;
 
 	ndev->ntb.topo = xeon_ppd_topo(ndev, ppd);
-	dev_dbg(ndev_dev(ndev), "ppd %#x topo %s\n", ppd,
+	dev_dbg(&pdev->dev, "ppd %#x topo %s\n", ppd,
 		ntb_topo_string(ndev->ntb.topo));
 	if (ndev->ntb.topo == NTB_TOPO_NONE)
 		return -EINVAL;
@@ -1885,14 +1930,14 @@ static int intel_ntb3_link_enable(struct ntb_dev *ntb,
 
 	ndev = container_of(ntb, struct intel_ntb_dev, ntb);
 
-	dev_dbg(ndev_dev(ndev),
+	dev_dbg(&ntb->pdev->dev,
 		"Enabling link with max_speed %d max_width %d\n",
 		max_speed, max_width);
 
 	if (max_speed != NTB_SPEED_AUTO)
-		dev_dbg(ndev_dev(ndev), "ignoring max_speed %d\n", max_speed);
+		dev_dbg(&ntb->pdev->dev, "ignoring max_speed %d\n", max_speed);
 	if (max_width != NTB_WIDTH_AUTO)
-		dev_dbg(ndev_dev(ndev), "ignoring max_width %d\n", max_width);
+		dev_dbg(&ntb->pdev->dev, "ignoring max_width %d\n", max_width);
 
 	ntb_ctl = ioread32(ndev->self_mmio + ndev->reg->ntb_ctl);
 	ntb_ctl &= ~(NTB_CTL_DISABLE | NTB_CTL_CFG_LOCK);
@@ -1902,7 +1947,7 @@ static int intel_ntb3_link_enable(struct ntb_dev *ntb,
 
 	return 0;
 }
-static int intel_ntb3_mw_set_trans(struct ntb_dev *ntb, int idx,
+static int intel_ntb3_mw_set_trans(struct ntb_dev *ntb, int pidx, int idx,
 				   dma_addr_t addr, resource_size_t size)
 {
 	struct intel_ntb_dev *ndev = ntb_ndev(ntb);
@@ -1912,6 +1957,9 @@ static int intel_ntb3_mw_set_trans(struct ntb_dev *ntb, int idx,
 	u64 base, limit, reg_val;
 	int bar;
 
+	if (pidx != NTB_DEF_PEER_IDX)
+		return -EINVAL;
+
 	if (idx >= ndev->b2b_idx && !ndev->b2b_off)
 		idx += 1;
 
@@ -1953,7 +2001,7 @@ static int intel_ntb3_mw_set_trans(struct ntb_dev *ntb, int idx,
 		return -EIO;
 	}
 
-	dev_dbg(ndev_dev(ndev), "BAR %d IMBARXBASE: %#Lx\n", bar, reg_val);
+	dev_dbg(&ntb->pdev->dev, "BAR %d IMBARXBASE: %#Lx\n", bar, reg_val);
 
 	/* set and verify setting the limit */
 	iowrite64(limit, mmio + limit_reg);
@@ -1964,7 +2012,7 @@ static int intel_ntb3_mw_set_trans(struct ntb_dev *ntb, int idx,
 		return -EIO;
 	}
 
-	dev_dbg(ndev_dev(ndev), "BAR %d IMBARXLMT: %#Lx\n", bar, reg_val);
+	dev_dbg(&ntb->pdev->dev, "BAR %d IMBARXLMT: %#Lx\n", bar, reg_val);
 
 	/* setup the EP */
 	limit_reg = ndev->xlat_reg->bar2_limit + (idx * 0x10) + 0x4000;
@@ -1985,7 +2033,7 @@ static int intel_ntb3_mw_set_trans(struct ntb_dev *ntb, int idx,
 		return -EIO;
 	}
 
-	dev_dbg(ndev_dev(ndev), "BAR %d EMBARXLMT: %#Lx\n", bar, reg_val);
+	dev_dbg(&ntb->pdev->dev, "BAR %d EMBARXLMT: %#Lx\n", bar, reg_val);
 
 	return 0;
 }
@@ -2092,7 +2140,7 @@ static inline enum ntb_topo xeon_ppd_topo(struct intel_ntb_dev *ndev, u8 ppd)
 static inline int xeon_ppd_bar4_split(struct intel_ntb_dev *ndev, u8 ppd)
 {
 	if (ppd & XEON_PPD_SPLIT_BAR_MASK) {
-		dev_dbg(ndev_dev(ndev), "PPD %d split bar\n", ppd);
+		dev_dbg(&ndev->ntb.pdev->dev, "PPD %d split bar\n", ppd);
 		return 1;
 	}
 	return 0;
@@ -2122,11 +2170,11 @@ static int xeon_setup_b2b_mw(struct intel_ntb_dev *ndev,
 	int b2b_bar;
 	u8 bar_sz;
 
-	pdev = ndev_pdev(ndev);
+	pdev = ndev->ntb.pdev;
 	mmio = ndev->self_mmio;
 
 	if (ndev->b2b_idx == UINT_MAX) {
-		dev_dbg(ndev_dev(ndev), "not using b2b mw\n");
+		dev_dbg(&pdev->dev, "not using b2b mw\n");
 		b2b_bar = 0;
 		ndev->b2b_off = 0;
 	} else {
@@ -2134,24 +2182,21 @@ static int xeon_setup_b2b_mw(struct intel_ntb_dev *ndev,
 		if (b2b_bar < 0)
 			return -EIO;
 
-		dev_dbg(ndev_dev(ndev), "using b2b mw bar %d\n", b2b_bar);
+		dev_dbg(&pdev->dev, "using b2b mw bar %d\n", b2b_bar);
 
 		bar_size = pci_resource_len(ndev->ntb.pdev, b2b_bar);
 
-		dev_dbg(ndev_dev(ndev), "b2b bar size %#llx\n", bar_size);
+		dev_dbg(&pdev->dev, "b2b bar size %#llx\n", bar_size);
 
 		if (b2b_mw_share && XEON_B2B_MIN_SIZE <= bar_size >> 1) {
-			dev_dbg(ndev_dev(ndev),
-				"b2b using first half of bar\n");
+			dev_dbg(&pdev->dev, "b2b using first half of bar\n");
 			ndev->b2b_off = bar_size >> 1;
 		} else if (XEON_B2B_MIN_SIZE <= bar_size) {
-			dev_dbg(ndev_dev(ndev),
-				"b2b using whole bar\n");
+			dev_dbg(&pdev->dev, "b2b using whole bar\n");
 			ndev->b2b_off = 0;
 			--ndev->mw_count;
 		} else {
-			dev_dbg(ndev_dev(ndev),
-				"b2b bar size is too small\n");
+			dev_dbg(&pdev->dev, "b2b bar size is too small\n");
 			return -EIO;
 		}
 	}
@@ -2163,7 +2208,7 @@ static int xeon_setup_b2b_mw(struct intel_ntb_dev *ndev,
 	 * offsets are not in a consistent order (bar5sz comes after ppd, odd).
 	 */
 	pci_read_config_byte(pdev, XEON_PBAR23SZ_OFFSET, &bar_sz);
-	dev_dbg(ndev_dev(ndev), "PBAR23SZ %#x\n", bar_sz);
+	dev_dbg(&pdev->dev, "PBAR23SZ %#x\n", bar_sz);
 	if (b2b_bar == 2) {
 		if (ndev->b2b_off)
 			bar_sz -= 1;
@@ -2172,11 +2217,11 @@ static int xeon_setup_b2b_mw(struct intel_ntb_dev *ndev,
 	}
 	pci_write_config_byte(pdev, XEON_SBAR23SZ_OFFSET, bar_sz);
 	pci_read_config_byte(pdev, XEON_SBAR23SZ_OFFSET, &bar_sz);
-	dev_dbg(ndev_dev(ndev), "SBAR23SZ %#x\n", bar_sz);
+	dev_dbg(&pdev->dev, "SBAR23SZ %#x\n", bar_sz);
 
 	if (!ndev->bar4_split) {
 		pci_read_config_byte(pdev, XEON_PBAR45SZ_OFFSET, &bar_sz);
-		dev_dbg(ndev_dev(ndev), "PBAR45SZ %#x\n", bar_sz);
+		dev_dbg(&pdev->dev, "PBAR45SZ %#x\n", bar_sz);
 		if (b2b_bar == 4) {
 			if (ndev->b2b_off)
 				bar_sz -= 1;
@@ -2185,10 +2230,10 @@ static int xeon_setup_b2b_mw(struct intel_ntb_dev *ndev,
 		}
 		pci_write_config_byte(pdev, XEON_SBAR45SZ_OFFSET, bar_sz);
 		pci_read_config_byte(pdev, XEON_SBAR45SZ_OFFSET, &bar_sz);
-		dev_dbg(ndev_dev(ndev), "SBAR45SZ %#x\n", bar_sz);
+		dev_dbg(&pdev->dev, "SBAR45SZ %#x\n", bar_sz);
 	} else {
 		pci_read_config_byte(pdev, XEON_PBAR4SZ_OFFSET, &bar_sz);
-		dev_dbg(ndev_dev(ndev), "PBAR4SZ %#x\n", bar_sz);
+		dev_dbg(&pdev->dev, "PBAR4SZ %#x\n", bar_sz);
 		if (b2b_bar == 4) {
 			if (ndev->b2b_off)
 				bar_sz -= 1;
@@ -2197,10 +2242,10 @@ static int xeon_setup_b2b_mw(struct intel_ntb_dev *ndev,
 		}
 		pci_write_config_byte(pdev, XEON_SBAR4SZ_OFFSET, bar_sz);
 		pci_read_config_byte(pdev, XEON_SBAR4SZ_OFFSET, &bar_sz);
-		dev_dbg(ndev_dev(ndev), "SBAR4SZ %#x\n", bar_sz);
+		dev_dbg(&pdev->dev, "SBAR4SZ %#x\n", bar_sz);
 
 		pci_read_config_byte(pdev, XEON_PBAR5SZ_OFFSET, &bar_sz);
-		dev_dbg(ndev_dev(ndev), "PBAR5SZ %#x\n", bar_sz);
+		dev_dbg(&pdev->dev, "PBAR5SZ %#x\n", bar_sz);
 		if (b2b_bar == 5) {
 			if (ndev->b2b_off)
 				bar_sz -= 1;
@@ -2209,7 +2254,7 @@ static int xeon_setup_b2b_mw(struct intel_ntb_dev *ndev,
 		}
 		pci_write_config_byte(pdev, XEON_SBAR5SZ_OFFSET, bar_sz);
 		pci_read_config_byte(pdev, XEON_SBAR5SZ_OFFSET, &bar_sz);
-		dev_dbg(ndev_dev(ndev), "SBAR5SZ %#x\n", bar_sz);
+		dev_dbg(&pdev->dev, "SBAR5SZ %#x\n", bar_sz);
 	}
 
 	/* SBAR01 hit by first part of the b2b bar */
@@ -2226,7 +2271,7 @@ static int xeon_setup_b2b_mw(struct intel_ntb_dev *ndev,
 	else
 		return -EIO;
 
-	dev_dbg(ndev_dev(ndev), "SBAR01 %#018llx\n", bar_addr);
+	dev_dbg(&pdev->dev, "SBAR01 %#018llx\n", bar_addr);
 	iowrite64(bar_addr, mmio + XEON_SBAR0BASE_OFFSET);
 
 	/* Other SBAR are normally hit by the PBAR xlat, except for b2b bar.
@@ -2237,26 +2282,26 @@ static int xeon_setup_b2b_mw(struct intel_ntb_dev *ndev,
 	bar_addr = addr->bar2_addr64 + (b2b_bar == 2 ? ndev->b2b_off : 0);
 	iowrite64(bar_addr, mmio + XEON_SBAR23BASE_OFFSET);
 	bar_addr = ioread64(mmio + XEON_SBAR23BASE_OFFSET);
-	dev_dbg(ndev_dev(ndev), "SBAR23 %#018llx\n", bar_addr);
+	dev_dbg(&pdev->dev, "SBAR23 %#018llx\n", bar_addr);
 
 	if (!ndev->bar4_split) {
 		bar_addr = addr->bar4_addr64 +
 			(b2b_bar == 4 ? ndev->b2b_off : 0);
 		iowrite64(bar_addr, mmio + XEON_SBAR45BASE_OFFSET);
 		bar_addr = ioread64(mmio + XEON_SBAR45BASE_OFFSET);
-		dev_dbg(ndev_dev(ndev), "SBAR45 %#018llx\n", bar_addr);
+		dev_dbg(&pdev->dev, "SBAR45 %#018llx\n", bar_addr);
 	} else {
 		bar_addr = addr->bar4_addr32 +
 			(b2b_bar == 4 ? ndev->b2b_off : 0);
 		iowrite32(bar_addr, mmio + XEON_SBAR4BASE_OFFSET);
 		bar_addr = ioread32(mmio + XEON_SBAR4BASE_OFFSET);
-		dev_dbg(ndev_dev(ndev), "SBAR4 %#010llx\n", bar_addr);
+		dev_dbg(&pdev->dev, "SBAR4 %#010llx\n", bar_addr);
 
 		bar_addr = addr->bar5_addr32 +
 			(b2b_bar == 5 ? ndev->b2b_off : 0);
 		iowrite32(bar_addr, mmio + XEON_SBAR5BASE_OFFSET);
 		bar_addr = ioread32(mmio + XEON_SBAR5BASE_OFFSET);
-		dev_dbg(ndev_dev(ndev), "SBAR5 %#010llx\n", bar_addr);
+		dev_dbg(&pdev->dev, "SBAR5 %#010llx\n", bar_addr);
 	}
 
 	/* setup incoming bar limits == base addrs (zero length windows) */
@@ -2264,26 +2309,26 @@ static int xeon_setup_b2b_mw(struct intel_ntb_dev *ndev,
 	bar_addr = addr->bar2_addr64 + (b2b_bar == 2 ? ndev->b2b_off : 0);
 	iowrite64(bar_addr, mmio + XEON_SBAR23LMT_OFFSET);
 	bar_addr = ioread64(mmio + XEON_SBAR23LMT_OFFSET);
-	dev_dbg(ndev_dev(ndev), "SBAR23LMT %#018llx\n", bar_addr);
+	dev_dbg(&pdev->dev, "SBAR23LMT %#018llx\n", bar_addr);
 
 	if (!ndev->bar4_split) {
 		bar_addr = addr->bar4_addr64 +
 			(b2b_bar == 4 ? ndev->b2b_off : 0);
 		iowrite64(bar_addr, mmio + XEON_SBAR45LMT_OFFSET);
 		bar_addr = ioread64(mmio + XEON_SBAR45LMT_OFFSET);
-		dev_dbg(ndev_dev(ndev), "SBAR45LMT %#018llx\n", bar_addr);
+		dev_dbg(&pdev->dev, "SBAR45LMT %#018llx\n", bar_addr);
 	} else {
 		bar_addr = addr->bar4_addr32 +
 			(b2b_bar == 4 ? ndev->b2b_off : 0);
 		iowrite32(bar_addr, mmio + XEON_SBAR4LMT_OFFSET);
 		bar_addr = ioread32(mmio + XEON_SBAR4LMT_OFFSET);
-		dev_dbg(ndev_dev(ndev), "SBAR4LMT %#010llx\n", bar_addr);
+		dev_dbg(&pdev->dev, "SBAR4LMT %#010llx\n", bar_addr);
 
 		bar_addr = addr->bar5_addr32 +
 			(b2b_bar == 5 ? ndev->b2b_off : 0);
 		iowrite32(bar_addr, mmio + XEON_SBAR5LMT_OFFSET);
 		bar_addr = ioread32(mmio + XEON_SBAR5LMT_OFFSET);
-		dev_dbg(ndev_dev(ndev), "SBAR5LMT %#05llx\n", bar_addr);
+		dev_dbg(&pdev->dev, "SBAR5LMT %#05llx\n", bar_addr);
 	}
 
 	/* zero incoming translation addrs */
@@ -2309,23 +2354,23 @@ static int xeon_setup_b2b_mw(struct intel_ntb_dev *ndev,
 	bar_addr = peer_addr->bar2_addr64;
 	iowrite64(bar_addr, mmio + XEON_PBAR23XLAT_OFFSET);
 	bar_addr = ioread64(mmio + XEON_PBAR23XLAT_OFFSET);
-	dev_dbg(ndev_dev(ndev), "PBAR23XLAT %#018llx\n", bar_addr);
+	dev_dbg(&pdev->dev, "PBAR23XLAT %#018llx\n", bar_addr);
 
 	if (!ndev->bar4_split) {
 		bar_addr = peer_addr->bar4_addr64;
 		iowrite64(bar_addr, mmio + XEON_PBAR45XLAT_OFFSET);
 		bar_addr = ioread64(mmio + XEON_PBAR45XLAT_OFFSET);
-		dev_dbg(ndev_dev(ndev), "PBAR45XLAT %#018llx\n", bar_addr);
+		dev_dbg(&pdev->dev, "PBAR45XLAT %#018llx\n", bar_addr);
 	} else {
 		bar_addr = peer_addr->bar4_addr32;
 		iowrite32(bar_addr, mmio + XEON_PBAR4XLAT_OFFSET);
 		bar_addr = ioread32(mmio + XEON_PBAR4XLAT_OFFSET);
-		dev_dbg(ndev_dev(ndev), "PBAR4XLAT %#010llx\n", bar_addr);
+		dev_dbg(&pdev->dev, "PBAR4XLAT %#010llx\n", bar_addr);
 
 		bar_addr = peer_addr->bar5_addr32;
 		iowrite32(bar_addr, mmio + XEON_PBAR5XLAT_OFFSET);
 		bar_addr = ioread32(mmio + XEON_PBAR5XLAT_OFFSET);
-		dev_dbg(ndev_dev(ndev), "PBAR5XLAT %#010llx\n", bar_addr);
+		dev_dbg(&pdev->dev, "PBAR5XLAT %#010llx\n", bar_addr);
 	}
 
 	/* set the translation offset for b2b registers */
@@ -2343,7 +2388,7 @@ static int xeon_setup_b2b_mw(struct intel_ntb_dev *ndev,
 		return -EIO;
 
 	/* B2B_XLAT_OFFSET is 64bit, but can only take 32bit writes */
-	dev_dbg(ndev_dev(ndev), "B2BXLAT %#018llx\n", bar_addr);
+	dev_dbg(&pdev->dev, "B2BXLAT %#018llx\n", bar_addr);
 	iowrite32(bar_addr, mmio + XEON_B2B_XLAT_OFFSETL);
 	iowrite32(bar_addr >> 32, mmio + XEON_B2B_XLAT_OFFSETU);
 
@@ -2362,6 +2407,7 @@ static int xeon_setup_b2b_mw(struct intel_ntb_dev *ndev,
 
 static int xeon_init_ntb(struct intel_ntb_dev *ndev)
 {
+	struct device *dev = &ndev->ntb.pdev->dev;
 	int rc;
 	u32 ntb_ctl;
 
@@ -2377,7 +2423,7 @@ static int xeon_init_ntb(struct intel_ntb_dev *ndev)
 	switch (ndev->ntb.topo) {
 	case NTB_TOPO_PRI:
 		if (ndev->hwerr_flags & NTB_HWERR_SDOORBELL_LOCKUP) {
-			dev_err(ndev_dev(ndev), "NTB Primary config disabled\n");
+			dev_err(dev, "NTB Primary config disabled\n");
 			return -EINVAL;
 		}
 
@@ -2395,7 +2441,7 @@ static int xeon_init_ntb(struct intel_ntb_dev *ndev)
 
 	case NTB_TOPO_SEC:
 		if (ndev->hwerr_flags & NTB_HWERR_SDOORBELL_LOCKUP) {
-			dev_err(ndev_dev(ndev), "NTB Secondary config disabled\n");
+			dev_err(dev, "NTB Secondary config disabled\n");
 			return -EINVAL;
 		}
 		/* use half the spads for the peer */
@@ -2420,18 +2466,17 @@ static int xeon_init_ntb(struct intel_ntb_dev *ndev)
 				ndev->b2b_idx = b2b_mw_idx;
 
 			if (ndev->b2b_idx >= ndev->mw_count) {
-				dev_dbg(ndev_dev(ndev),
+				dev_dbg(dev,
 					"b2b_mw_idx %d invalid for mw_count %u\n",
 					b2b_mw_idx, ndev->mw_count);
 				return -EINVAL;
 			}
 
-			dev_dbg(ndev_dev(ndev),
-				"setting up b2b mw idx %d means %d\n",
+			dev_dbg(dev, "setting up b2b mw idx %d means %d\n",
 				b2b_mw_idx, ndev->b2b_idx);
 
 		} else if (ndev->hwerr_flags & NTB_HWERR_B2BDOORBELL_BIT14) {
-			dev_warn(ndev_dev(ndev), "Reduce doorbell count by 1\n");
+			dev_warn(dev, "Reduce doorbell count by 1\n");
 			ndev->db_count -= 1;
 		}
 
@@ -2472,7 +2517,7 @@ static int xeon_init_dev(struct intel_ntb_dev *ndev)
 	u8 ppd;
 	int rc, mem;
 
-	pdev = ndev_pdev(ndev);
+	pdev = ndev->ntb.pdev;
 
 	switch (pdev->device) {
 	/* There is a Xeon hardware errata related to writes to SDOORBELL or
@@ -2548,14 +2593,14 @@ static int xeon_init_dev(struct intel_ntb_dev *ndev)
 		return -EIO;
 
 	ndev->ntb.topo = xeon_ppd_topo(ndev, ppd);
-	dev_dbg(ndev_dev(ndev), "ppd %#x topo %s\n", ppd,
+	dev_dbg(&pdev->dev, "ppd %#x topo %s\n", ppd,
 		ntb_topo_string(ndev->ntb.topo));
 	if (ndev->ntb.topo == NTB_TOPO_NONE)
 		return -EINVAL;
 
 	if (ndev->ntb.topo != NTB_TOPO_SEC) {
 		ndev->bar4_split = xeon_ppd_bar4_split(ndev, ppd);
-		dev_dbg(ndev_dev(ndev), "ppd %#x bar4_split %d\n",
+		dev_dbg(&pdev->dev, "ppd %#x bar4_split %d\n",
 			ppd, ndev->bar4_split);
 	} else {
 		/* This is a way for transparent BAR to figure out if we are
@@ -2565,7 +2610,7 @@ static int xeon_init_dev(struct intel_ntb_dev *ndev)
 		mem = pci_select_bars(pdev, IORESOURCE_MEM);
 		ndev->bar4_split = hweight32(mem) ==
 			HSX_SPLIT_BAR_MW_COUNT + 1;
-		dev_dbg(ndev_dev(ndev), "mem %#x bar4_split %d\n",
+		dev_dbg(&pdev->dev, "mem %#x bar4_split %d\n",
 			mem, ndev->bar4_split);
 	}
 
@@ -2602,7 +2647,7 @@ static int intel_ntb_init_pci(struct intel_ntb_dev *ndev, struct pci_dev *pdev)
 		rc = pci_set_dma_mask(pdev, DMA_BIT_MASK(32));
 		if (rc)
 			goto err_dma_mask;
-		dev_warn(ndev_dev(ndev), "Cannot DMA highmem\n");
+		dev_warn(&pdev->dev, "Cannot DMA highmem\n");
 	}
 
 	rc = pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(64));
@@ -2610,7 +2655,7 @@ static int intel_ntb_init_pci(struct intel_ntb_dev *ndev, struct pci_dev *pdev)
 		rc = pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(32));
 		if (rc)
 			goto err_dma_mask;
-		dev_warn(ndev_dev(ndev), "Cannot DMA consistent highmem\n");
+		dev_warn(&pdev->dev, "Cannot DMA consistent highmem\n");
 	}
 
 	ndev->self_mmio = pci_iomap(pdev, 0, 0);
@@ -2636,7 +2681,7 @@ err_pci_enable:
 
 static void intel_ntb_deinit_pci(struct intel_ntb_dev *ndev)
 {
-	struct pci_dev *pdev = ndev_pdev(ndev);
+	struct pci_dev *pdev = ndev->ntb.pdev;
 
 	if (ndev->peer_mmio && ndev->peer_mmio != ndev->self_mmio)
 		pci_iounmap(pdev, ndev->peer_mmio);
@@ -2906,8 +2951,10 @@ static const struct intel_ntb_xlat_reg skx_sec_xlat = {
 /* operations for primary side of local ntb */
 static const struct ntb_dev_ops intel_ntb_ops = {
 	.mw_count		= intel_ntb_mw_count,
-	.mw_get_range		= intel_ntb_mw_get_range,
+	.mw_get_align		= intel_ntb_mw_get_align,
 	.mw_set_trans		= intel_ntb_mw_set_trans,
+	.peer_mw_count		= intel_ntb_peer_mw_count,
+	.peer_mw_get_addr	= intel_ntb_peer_mw_get_addr,
 	.link_is_up		= intel_ntb_link_is_up,
 	.link_enable		= intel_ntb_link_enable,
 	.link_disable		= intel_ntb_link_disable,
@@ -2932,8 +2979,10 @@ static const struct ntb_dev_ops intel_ntb_ops = {
 
 static const struct ntb_dev_ops intel_ntb3_ops = {
 	.mw_count		= intel_ntb_mw_count,
-	.mw_get_range		= intel_ntb_mw_get_range,
+	.mw_get_align		= intel_ntb_mw_get_align,
 	.mw_set_trans		= intel_ntb3_mw_set_trans,
+	.peer_mw_count		= intel_ntb_peer_mw_count,
+	.peer_mw_get_addr	= intel_ntb_peer_mw_get_addr,
 	.link_is_up		= intel_ntb_link_is_up,
 	.link_enable		= intel_ntb3_link_enable,
 	.link_disable		= intel_ntb_link_disable,
@@ -3008,4 +3057,3 @@ static void __exit intel_ntb_pci_driver_exit(void)
 	debugfs_remove_recursive(debugfs_dir);
 }
 module_exit(intel_ntb_pci_driver_exit);
-
diff --git a/drivers/ntb/hw/intel/ntb_hw_intel.h b/drivers/ntb/hw/intel/ntb_hw_intel.h
index f2cf8a783f1e..2d6c38afb128 100644
--- a/drivers/ntb/hw/intel/ntb_hw_intel.h
+++ b/drivers/ntb/hw/intel/ntb_hw_intel.h
@@ -382,9 +382,6 @@ struct intel_ntb_dev {
 	struct dentry			*debugfs_info;
 };
 
-#define ndev_pdev(ndev) ((ndev)->ntb.pdev)
-#define ndev_name(ndev) pci_name(ndev_pdev(ndev))
-#define ndev_dev(ndev) (&ndev_pdev(ndev)->dev)
 #define ntb_ndev(__ntb) container_of(__ntb, struct intel_ntb_dev, ntb)
 #define hb_ndev(__work) container_of(__work, struct intel_ntb_dev, \
 				     hb_timer.work)
diff --git a/drivers/ntb/ntb.c b/drivers/ntb/ntb.c
index 2e2530743831..03b80d89b980 100644
--- a/drivers/ntb/ntb.c
+++ b/drivers/ntb/ntb.c
@@ -5,6 +5,7 @@
  *   GPL LICENSE SUMMARY
  *
  *   Copyright (C) 2015 EMC Corporation. All Rights Reserved.
+ *   Copyright (C) 2016 T-Platforms. All Rights Reserved.
  *
  *   This program is free software; you can redistribute it and/or modify
  *   it under the terms of version 2 of the GNU General Public License as
@@ -18,6 +19,7 @@
  *   BSD LICENSE
  *
  *   Copyright (C) 2015 EMC Corporation. All Rights Reserved.
+ *   Copyright (C) 2016 T-Platforms. All Rights Reserved.
  *
  *   Redistribution and use in source and binary forms, with or without
  *   modification, are permitted provided that the following conditions
@@ -191,6 +193,73 @@ void ntb_db_event(struct ntb_dev *ntb, int vector)
 }
 EXPORT_SYMBOL(ntb_db_event);
 
+void ntb_msg_event(struct ntb_dev *ntb)
+{
+	unsigned long irqflags;
+
+	spin_lock_irqsave(&ntb->ctx_lock, irqflags);
+	{
+		if (ntb->ctx_ops && ntb->ctx_ops->msg_event)
+			ntb->ctx_ops->msg_event(ntb->ctx);
+	}
+	spin_unlock_irqrestore(&ntb->ctx_lock, irqflags);
+}
+EXPORT_SYMBOL(ntb_msg_event);
+
+int ntb_default_port_number(struct ntb_dev *ntb)
+{
+	switch (ntb->topo) {
+	case NTB_TOPO_PRI:
+	case NTB_TOPO_B2B_USD:
+		return NTB_PORT_PRI_USD;
+	case NTB_TOPO_SEC:
+	case NTB_TOPO_B2B_DSD:
+		return NTB_PORT_SEC_DSD;
+	default:
+		break;
+	}
+
+	return -EINVAL;
+}
+EXPORT_SYMBOL(ntb_default_port_number);
+
+int ntb_default_peer_port_count(struct ntb_dev *ntb)
+{
+	return NTB_DEF_PEER_CNT;
+}
+EXPORT_SYMBOL(ntb_default_peer_port_count);
+
+int ntb_default_peer_port_number(struct ntb_dev *ntb, int pidx)
+{
+	if (pidx != NTB_DEF_PEER_IDX)
+		return -EINVAL;
+
+	switch (ntb->topo) {
+	case NTB_TOPO_PRI:
+	case NTB_TOPO_B2B_USD:
+		return NTB_PORT_SEC_DSD;
+	case NTB_TOPO_SEC:
+	case NTB_TOPO_B2B_DSD:
+		return NTB_PORT_PRI_USD;
+	default:
+		break;
+	}
+
+	return -EINVAL;
+}
+EXPORT_SYMBOL(ntb_default_peer_port_number);
+
+int ntb_default_peer_port_idx(struct ntb_dev *ntb, int port)
+{
+	int peer_port = ntb_default_peer_port_number(ntb, NTB_DEF_PEER_IDX);
+
+	if (peer_port == -EINVAL || port != peer_port)
+		return -EINVAL;
+
+	return 0;
+}
+EXPORT_SYMBOL(ntb_default_peer_port_idx);
+
 static int ntb_probe(struct device *dev)
 {
 	struct ntb_dev *ntb;
diff --git a/drivers/ntb/ntb_transport.c b/drivers/ntb/ntb_transport.c
index 10e5bf460139..9a03c5871efe 100644
--- a/drivers/ntb/ntb_transport.c
+++ b/drivers/ntb/ntb_transport.c
@@ -95,6 +95,9 @@ MODULE_PARM_DESC(use_dma, "Use DMA engine to perform large data copy");
 
 static struct dentry *nt_debugfs_dir;
 
+/* Only two-ports NTB devices are supported */
+#define PIDX		NTB_DEF_PEER_IDX
+
 struct ntb_queue_entry {
 	/* ntb_queue list reference */
 	struct list_head entry;
@@ -670,7 +673,7 @@ static void ntb_free_mw(struct ntb_transport_ctx *nt, int num_mw)
 	if (!mw->virt_addr)
 		return;
 
-	ntb_mw_clear_trans(nt->ndev, num_mw);
+	ntb_mw_clear_trans(nt->ndev, PIDX, num_mw);
 	dma_free_coherent(&pdev->dev, mw->buff_size,
 			  mw->virt_addr, mw->dma_addr);
 	mw->xlat_size = 0;
@@ -727,7 +730,8 @@ static int ntb_set_mw(struct ntb_transport_ctx *nt, int num_mw,
 	}
 
 	/* Notify HW the memory location of the receive buffer */
-	rc = ntb_mw_set_trans(nt->ndev, num_mw, mw->dma_addr, mw->xlat_size);
+	rc = ntb_mw_set_trans(nt->ndev, PIDX, num_mw, mw->dma_addr,
+			      mw->xlat_size);
 	if (rc) {
 		dev_err(&pdev->dev, "Unable to set mw%d translation", num_mw);
 		ntb_free_mw(nt, num_mw);
@@ -858,17 +862,17 @@ static void ntb_transport_link_work(struct work_struct *work)
 			size = max_mw_size;
 
 		spad = MW0_SZ_HIGH + (i * 2);
-		ntb_peer_spad_write(ndev, spad, upper_32_bits(size));
+		ntb_peer_spad_write(ndev, PIDX, spad, upper_32_bits(size));
 
 		spad = MW0_SZ_LOW + (i * 2);
-		ntb_peer_spad_write(ndev, spad, lower_32_bits(size));
+		ntb_peer_spad_write(ndev, PIDX, spad, lower_32_bits(size));
 	}
 
-	ntb_peer_spad_write(ndev, NUM_MWS, nt->mw_count);
+	ntb_peer_spad_write(ndev, PIDX, NUM_MWS, nt->mw_count);
 
-	ntb_peer_spad_write(ndev, NUM_QPS, nt->qp_count);
+	ntb_peer_spad_write(ndev, PIDX, NUM_QPS, nt->qp_count);
 
-	ntb_peer_spad_write(ndev, VERSION, NTB_TRANSPORT_VERSION);
+	ntb_peer_spad_write(ndev, PIDX, VERSION, NTB_TRANSPORT_VERSION);
 
 	/* Query the remote side for its info */
 	val = ntb_spad_read(ndev, VERSION);
@@ -944,7 +948,7 @@ static void ntb_qp_link_work(struct work_struct *work)
 
 	val = ntb_spad_read(nt->ndev, QP_LINKS);
 
-	ntb_peer_spad_write(nt->ndev, QP_LINKS, val | BIT(qp->qp_num));
+	ntb_peer_spad_write(nt->ndev, PIDX, QP_LINKS, val | BIT(qp->qp_num));
 
 	/* query remote spad for qp ready bits */
 	dev_dbg_ratelimited(&pdev->dev, "Remote QP link status = %x\n", val);
@@ -1055,7 +1059,12 @@ static int ntb_transport_probe(struct ntb_client *self, struct ntb_dev *ndev)
 	int node;
 	int rc, i;
 
-	mw_count = ntb_mw_count(ndev);
+	mw_count = ntb_mw_count(ndev, PIDX);
+
+	if (!ndev->ops->mw_set_trans) {
+		dev_err(&ndev->dev, "Inbound MW based NTB API is required\n");
+		return -EINVAL;
+	}
 
 	if (ntb_db_is_unsafe(ndev))
 		dev_dbg(&ndev->dev,
@@ -1064,6 +1073,9 @@ static int ntb_transport_probe(struct ntb_client *self, struct ntb_dev *ndev)
 		dev_dbg(&ndev->dev,
 			"scratchpad is unsafe, proceed anyway...\n");
 
+	if (ntb_peer_port_count(ndev) != NTB_DEF_PEER_CNT)
+		dev_warn(&ndev->dev, "Multi-port NTB devices unsupported\n");
+
 	node = dev_to_node(&ndev->dev);
 
 	nt = kzalloc_node(sizeof(*nt), GFP_KERNEL, node);
@@ -1094,8 +1106,13 @@ static int ntb_transport_probe(struct ntb_client *self, struct ntb_dev *ndev)
 	for (i = 0; i < mw_count; i++) {
 		mw = &nt->mw_vec[i];
 
-		rc = ntb_mw_get_range(ndev, i, &mw->phys_addr, &mw->phys_size,
-				      &mw->xlat_align, &mw->xlat_align_size);
+		rc = ntb_mw_get_align(ndev, PIDX, i, &mw->xlat_align,
+				      &mw->xlat_align_size, NULL);
+		if (rc)
+			goto err1;
+
+		rc = ntb_peer_mw_get_addr(ndev, i, &mw->phys_addr,
+					  &mw->phys_size);
 		if (rc)
 			goto err1;
 
@@ -2091,8 +2108,7 @@ void ntb_transport_link_down(struct ntb_transport_qp *qp)
 
 	val = ntb_spad_read(qp->ndev, QP_LINKS);
 
-	ntb_peer_spad_write(qp->ndev, QP_LINKS,
-			    val & ~BIT(qp->qp_num));
+	ntb_peer_spad_write(qp->ndev, PIDX, QP_LINKS, val & ~BIT(qp->qp_num));
 
 	if (qp->link_is_up)
 		ntb_send_link_down(qp);
diff --git a/drivers/ntb/test/ntb_perf.c b/drivers/ntb/test/ntb_perf.c
index 5cab2831ce99..759f772fa00c 100644
--- a/drivers/ntb/test/ntb_perf.c
+++ b/drivers/ntb/test/ntb_perf.c
@@ -76,6 +76,7 @@
 #define DMA_RETRIES		20
 #define SZ_4G			(1ULL << 32)
 #define MAX_SEG_ORDER		20 /* no larger than 1M for kmalloc buffer */
+#define PIDX			NTB_DEF_PEER_IDX
 
 MODULE_LICENSE(DRIVER_LICENSE);
 MODULE_VERSION(DRIVER_VERSION);
@@ -100,6 +101,10 @@ static bool use_dma; /* default to 0 */
 module_param(use_dma, bool, 0644);
 MODULE_PARM_DESC(use_dma, "Using DMA engine to measure performance");
 
+static bool on_node = true; /* default to 1 */
+module_param(on_node, bool, 0644);
+MODULE_PARM_DESC(on_node, "Run threads only on NTB device node (default: true)");
+
 struct perf_mw {
 	phys_addr_t	phys_addr;
 	resource_size_t	phys_size;
@@ -135,9 +140,6 @@ struct perf_ctx {
 	bool			link_is_up;
 	struct delayed_work	link_work;
 	wait_queue_head_t	link_wq;
-	struct dentry		*debugfs_node_dir;
-	struct dentry		*debugfs_run;
-	struct dentry		*debugfs_threads;
 	u8			perf_threads;
 	/* mutex ensures only one set of threads run at once */
 	struct mutex		run_mutex;
@@ -344,6 +346,10 @@ static int perf_move_data(struct pthr_ctx *pctx, char __iomem *dst, char *src,
 
 static bool perf_dma_filter_fn(struct dma_chan *chan, void *node)
 {
+	/* Is the channel required to be on the same node as the device? */
+	if (!on_node)
+		return true;
+
 	return dev_to_node(&chan->dev->device) == (int)(unsigned long)node;
 }
 
@@ -361,7 +367,7 @@ static int ntb_perf_thread(void *data)
 
 	pr_debug("kthread %s starting...\n", current->comm);
 
-	node = dev_to_node(&pdev->dev);
+	node = on_node ? dev_to_node(&pdev->dev) : NUMA_NO_NODE;
 
 	if (use_dma && !pctx->dma_chan) {
 		dma_cap_mask_t dma_mask;
@@ -454,7 +460,7 @@ static void perf_free_mw(struct perf_ctx *perf)
 	if (!mw->virt_addr)
 		return;
 
-	ntb_mw_clear_trans(perf->ntb, 0);
+	ntb_mw_clear_trans(perf->ntb, PIDX, 0);
 	dma_free_coherent(&pdev->dev, mw->buf_size,
 			  mw->virt_addr, mw->dma_addr);
 	mw->xlat_size = 0;
@@ -490,7 +496,7 @@ static int perf_set_mw(struct perf_ctx *perf, resource_size_t size)
 		mw->buf_size = 0;
 	}
 
-	rc = ntb_mw_set_trans(perf->ntb, 0, mw->dma_addr, mw->xlat_size);
+	rc = ntb_mw_set_trans(perf->ntb, PIDX, 0, mw->dma_addr, mw->xlat_size);
 	if (rc) {
 		dev_err(&perf->ntb->dev, "Unable to set mw0 translation\n");
 		perf_free_mw(perf);
@@ -517,9 +523,9 @@ static void perf_link_work(struct work_struct *work)
 	if (max_mw_size && size > max_mw_size)
 		size = max_mw_size;
 
-	ntb_peer_spad_write(ndev, MW_SZ_HIGH, upper_32_bits(size));
-	ntb_peer_spad_write(ndev, MW_SZ_LOW, lower_32_bits(size));
-	ntb_peer_spad_write(ndev, VERSION, PERF_VERSION);
+	ntb_peer_spad_write(ndev, PIDX, MW_SZ_HIGH, upper_32_bits(size));
+	ntb_peer_spad_write(ndev, PIDX, MW_SZ_LOW, lower_32_bits(size));
+	ntb_peer_spad_write(ndev, PIDX, VERSION, PERF_VERSION);
 
 	/* now read what peer wrote */
 	val = ntb_spad_read(ndev, VERSION);
@@ -561,8 +567,12 @@ static int perf_setup_mw(struct ntb_dev *ntb, struct perf_ctx *perf)
 
 	mw = &perf->mw;
 
-	rc = ntb_mw_get_range(ntb, 0, &mw->phys_addr, &mw->phys_size,
-			      &mw->xlat_align, &mw->xlat_align_size);
+	rc = ntb_mw_get_align(ntb, PIDX, 0, &mw->xlat_align,
+			      &mw->xlat_align_size, NULL);
+	if (rc)
+		return rc;
+
+	rc = ntb_peer_mw_get_addr(ntb, 0, &mw->phys_addr, &mw->phys_size);
 	if (rc)
 		return rc;
 
@@ -677,7 +687,8 @@ static ssize_t debugfs_run_write(struct file *filp, const char __user *ubuf,
 		pr_info("Fix run_order to %u\n", run_order);
 	}
 
-	node = dev_to_node(&perf->ntb->pdev->dev);
+	node = on_node ? dev_to_node(&perf->ntb->pdev->dev)
+		       : NUMA_NO_NODE;
 	atomic_set(&perf->tdone, 0);
 
 	/* launch kernel thread */
@@ -723,34 +734,71 @@ static const struct file_operations ntb_perf_debugfs_run = {
 static int perf_debugfs_setup(struct perf_ctx *perf)
 {
 	struct pci_dev *pdev = perf->ntb->pdev;
+	struct dentry *debugfs_node_dir;
+	struct dentry *debugfs_run;
+	struct dentry *debugfs_threads;
+	struct dentry *debugfs_seg_order;
+	struct dentry *debugfs_run_order;
+	struct dentry *debugfs_use_dma;
+	struct dentry *debugfs_on_node;
 
 	if (!debugfs_initialized())
 		return -ENODEV;
 
+	/* Assumpion: only one NTB device in the system */
 	if (!perf_debugfs_dir) {
 		perf_debugfs_dir = debugfs_create_dir(KBUILD_MODNAME, NULL);
 		if (!perf_debugfs_dir)
 			return -ENODEV;
 	}
 
-	perf->debugfs_node_dir = debugfs_create_dir(pci_name(pdev),
-						    perf_debugfs_dir);
-	if (!perf->debugfs_node_dir)
-		return -ENODEV;
+	debugfs_node_dir = debugfs_create_dir(pci_name(pdev),
+					      perf_debugfs_dir);
+	if (!debugfs_node_dir)
+		goto err;
 
-	perf->debugfs_run = debugfs_create_file("run", S_IRUSR | S_IWUSR,
-						perf->debugfs_node_dir, perf,
-						&ntb_perf_debugfs_run);
-	if (!perf->debugfs_run)
-		return -ENODEV;
+	debugfs_run = debugfs_create_file("run", S_IRUSR | S_IWUSR,
+					  debugfs_node_dir, perf,
+					  &ntb_perf_debugfs_run);
+	if (!debugfs_run)
+		goto err;
 
-	perf->debugfs_threads = debugfs_create_u8("threads", S_IRUSR | S_IWUSR,
-						  perf->debugfs_node_dir,
-						  &perf->perf_threads);
-	if (!perf->debugfs_threads)
-		return -ENODEV;
+	debugfs_threads = debugfs_create_u8("threads", S_IRUSR | S_IWUSR,
+					    debugfs_node_dir,
+					    &perf->perf_threads);
+	if (!debugfs_threads)
+		goto err;
+
+	debugfs_seg_order = debugfs_create_u32("seg_order", 0600,
+					       debugfs_node_dir,
+					       &seg_order);
+	if (!debugfs_seg_order)
+		goto err;
+
+	debugfs_run_order = debugfs_create_u32("run_order", 0600,
+					       debugfs_node_dir,
+					       &run_order);
+	if (!debugfs_run_order)
+		goto err;
+
+	debugfs_use_dma = debugfs_create_bool("use_dma", 0600,
+					       debugfs_node_dir,
+					       &use_dma);
+	if (!debugfs_use_dma)
+		goto err;
+
+	debugfs_on_node = debugfs_create_bool("on_node", 0600,
+					      debugfs_node_dir,
+					      &on_node);
+	if (!debugfs_on_node)
+		goto err;
 
 	return 0;
+
+err:
+	debugfs_remove_recursive(perf_debugfs_dir);
+	perf_debugfs_dir = NULL;
+	return -ENODEV;
 }
 
 static int perf_probe(struct ntb_client *client, struct ntb_dev *ntb)
@@ -766,8 +814,15 @@ static int perf_probe(struct ntb_client *client, struct ntb_dev *ntb)
 		return -EIO;
 	}
 
-	node = dev_to_node(&pdev->dev);
+	if (!ntb->ops->mw_set_trans) {
+		dev_err(&ntb->dev, "Need inbound MW based NTB API\n");
+		return -EINVAL;
+	}
+
+	if (ntb_peer_port_count(ntb) != NTB_DEF_PEER_CNT)
+		dev_warn(&ntb->dev, "Multi-port NTB devices unsupported\n");
 
+	node = on_node ? dev_to_node(&pdev->dev) : NUMA_NO_NODE;
 	perf = kzalloc_node(sizeof(*perf), GFP_KERNEL, node);
 	if (!perf) {
 		rc = -ENOMEM;
diff --git a/drivers/ntb/test/ntb_pingpong.c b/drivers/ntb/test/ntb_pingpong.c
index 435861189d97..938a18bcfc3f 100644
--- a/drivers/ntb/test/ntb_pingpong.c
+++ b/drivers/ntb/test/ntb_pingpong.c
@@ -90,6 +90,9 @@ static unsigned long db_init = 0x7;
 module_param(db_init, ulong, 0644);
 MODULE_PARM_DESC(db_init, "Initial doorbell bits to ring on the peer");
 
+/* Only two-ports NTB devices are supported */
+#define PIDX		NTB_DEF_PEER_IDX
+
 struct pp_ctx {
 	struct ntb_dev			*ntb;
 	u64				db_bits;
@@ -135,7 +138,7 @@ static void pp_ping(unsigned long ctx)
 			"Ping bits %#llx read %#x write %#x\n",
 			db_bits, spad_rd, spad_wr);
 
-		ntb_peer_spad_write(pp->ntb, 0, spad_wr);
+		ntb_peer_spad_write(pp->ntb, PIDX, 0, spad_wr);
 		ntb_peer_db_set(pp->ntb, db_bits);
 		ntb_db_clear_mask(pp->ntb, db_mask);
 
@@ -222,6 +225,12 @@ static int pp_probe(struct ntb_client *client,
 		}
 	}
 
+	if (ntb_spad_count(ntb) < 1) {
+		dev_dbg(&ntb->dev, "no enough scratchpads\n");
+		rc = -EINVAL;
+		goto err_pp;
+	}
+
 	if (ntb_spad_is_unsafe(ntb)) {
 		dev_dbg(&ntb->dev, "scratchpad is unsafe\n");
 		if (!unsafe) {
@@ -230,6 +239,9 @@ static int pp_probe(struct ntb_client *client,
 		}
 	}
 
+	if (ntb_peer_port_count(ntb) != NTB_DEF_PEER_CNT)
+		dev_warn(&ntb->dev, "multi-port NTB is unsupported\n");
+
 	pp = kmalloc(sizeof(*pp), GFP_KERNEL);
 	if (!pp) {
 		rc = -ENOMEM;
diff --git a/drivers/ntb/test/ntb_tool.c b/drivers/ntb/test/ntb_tool.c
index 61bf2ef87e0e..f002bf48a08d 100644
--- a/drivers/ntb/test/ntb_tool.c
+++ b/drivers/ntb/test/ntb_tool.c
@@ -119,7 +119,10 @@ MODULE_VERSION(DRIVER_VERSION);
 MODULE_AUTHOR(DRIVER_AUTHOR);
 MODULE_DESCRIPTION(DRIVER_DESCRIPTION);
 
-#define MAX_MWS 16
+/* It is rare to have hadrware with greater than six MWs */
+#define MAX_MWS	6
+/* Only two-ports devices are supported */
+#define PIDX	NTB_DEF_PEER_IDX
 
 static struct dentry *tool_dbgfs;
 
@@ -459,13 +462,22 @@ static TOOL_FOPS_RDWR(tool_spad_fops,
 		      tool_spad_read,
 		      tool_spad_write);
 
+static u32 ntb_tool_peer_spad_read(struct ntb_dev *ntb, int sidx)
+{
+	return ntb_peer_spad_read(ntb, PIDX, sidx);
+}
+
 static ssize_t tool_peer_spad_read(struct file *filep, char __user *ubuf,
 				   size_t size, loff_t *offp)
 {
 	struct tool_ctx *tc = filep->private_data;
 
-	return tool_spadfn_read(tc, ubuf, size, offp,
-				tc->ntb->ops->peer_spad_read);
+	return tool_spadfn_read(tc, ubuf, size, offp, ntb_tool_peer_spad_read);
+}
+
+static int ntb_tool_peer_spad_write(struct ntb_dev *ntb, int sidx, u32 val)
+{
+	return ntb_peer_spad_write(ntb, PIDX, sidx, val);
 }
 
 static ssize_t tool_peer_spad_write(struct file *filep, const char __user *ubuf,
@@ -474,7 +486,7 @@ static ssize_t tool_peer_spad_write(struct file *filep, const char __user *ubuf,
 	struct tool_ctx *tc = filep->private_data;
 
 	return tool_spadfn_write(tc, ubuf, size, offp,
-				 tc->ntb->ops->peer_spad_write);
+				 ntb_tool_peer_spad_write);
 }
 
 static TOOL_FOPS_RDWR(tool_peer_spad_fops,
@@ -668,28 +680,27 @@ static int tool_setup_mw(struct tool_ctx *tc, int idx, size_t req_size)
 {
 	int rc;
 	struct tool_mw *mw = &tc->mws[idx];
-	phys_addr_t base;
-	resource_size_t size, align, align_size;
+	resource_size_t size, align_addr, align_size;
 	char buf[16];
 
 	if (mw->peer)
 		return 0;
 
-	rc = ntb_mw_get_range(tc->ntb, idx, &base, &size, &align,
-			      &align_size);
+	rc = ntb_mw_get_align(tc->ntb, PIDX, idx, &align_addr,
+				&align_size, &size);
 	if (rc)
 		return rc;
 
 	mw->size = min_t(resource_size_t, req_size, size);
-	mw->size = round_up(mw->size, align);
+	mw->size = round_up(mw->size, align_addr);
 	mw->size = round_up(mw->size, align_size);
 	mw->peer = dma_alloc_coherent(&tc->ntb->pdev->dev, mw->size,
 				      &mw->peer_dma, GFP_KERNEL);
 
-	if (!mw->peer)
+	if (!mw->peer || !IS_ALIGNED(mw->peer_dma, align_addr))
 		return -ENOMEM;
 
-	rc = ntb_mw_set_trans(tc->ntb, idx, mw->peer_dma, mw->size);
+	rc = ntb_mw_set_trans(tc->ntb, PIDX, idx, mw->peer_dma, mw->size);
 	if (rc)
 		goto err_free_dma;
 
@@ -716,7 +727,7 @@ static void tool_free_mw(struct tool_ctx *tc, int idx)
 	struct tool_mw *mw = &tc->mws[idx];
 
 	if (mw->peer) {
-		ntb_mw_clear_trans(tc->ntb, idx);
+		ntb_mw_clear_trans(tc->ntb, PIDX, idx);
 		dma_free_coherent(&tc->ntb->pdev->dev, mw->size,
 				  mw->peer,
 				  mw->peer_dma);
@@ -742,8 +753,9 @@ static ssize_t tool_peer_mw_trans_read(struct file *filep,
 
 	phys_addr_t base;
 	resource_size_t mw_size;
-	resource_size_t align;
+	resource_size_t align_addr;
 	resource_size_t align_size;
+	resource_size_t max_size;
 
 	buf_size = min_t(size_t, size, 512);
 
@@ -751,8 +763,9 @@ static ssize_t tool_peer_mw_trans_read(struct file *filep,
 	if (!buf)
 		return -ENOMEM;
 
-	ntb_mw_get_range(mw->tc->ntb, mw->idx,
-			 &base, &mw_size, &align, &align_size);
+	ntb_mw_get_align(mw->tc->ntb, PIDX, mw->idx,
+			 &align_addr, &align_size, &max_size);
+	ntb_peer_mw_get_addr(mw->tc->ntb, mw->idx, &base, &mw_size);
 
 	off += scnprintf(buf + off, buf_size - off,
 			 "Peer MW %d Information:\n", mw->idx);
@@ -767,13 +780,17 @@ static ssize_t tool_peer_mw_trans_read(struct file *filep,
 
 	off += scnprintf(buf + off, buf_size - off,
 			 "Alignment             \t%lld\n",
-			 (unsigned long long)align);
+			 (unsigned long long)align_addr);
 
 	off += scnprintf(buf + off, buf_size - off,
 			 "Size Alignment        \t%lld\n",
 			 (unsigned long long)align_size);
 
 	off += scnprintf(buf + off, buf_size - off,
+			 "Size Max              \t%lld\n",
+			 (unsigned long long)max_size);
+
+	off += scnprintf(buf + off, buf_size - off,
 			 "Ready                 \t%c\n",
 			 (mw->peer) ? 'Y' : 'N');
 
@@ -827,8 +844,7 @@ static int tool_init_mw(struct tool_ctx *tc, int idx)
 	phys_addr_t base;
 	int rc;
 
-	rc = ntb_mw_get_range(tc->ntb, idx, &base, &mw->win_size,
-			      NULL, NULL);
+	rc = ntb_peer_mw_get_addr(tc->ntb, idx, &base, &mw->win_size);
 	if (rc)
 		return rc;
 
@@ -913,12 +929,27 @@ static int tool_probe(struct ntb_client *self, struct ntb_dev *ntb)
 	int rc;
 	int i;
 
+	if (!ntb->ops->mw_set_trans) {
+		dev_dbg(&ntb->dev, "need inbound MW based NTB API\n");
+		rc = -EINVAL;
+		goto err_tc;
+	}
+
+	if (ntb_spad_count(ntb) < 1) {
+		dev_dbg(&ntb->dev, "no enough scratchpads\n");
+		rc = -EINVAL;
+		goto err_tc;
+	}
+
 	if (ntb_db_is_unsafe(ntb))
 		dev_dbg(&ntb->dev, "doorbell is unsafe\n");
 
 	if (ntb_spad_is_unsafe(ntb))
 		dev_dbg(&ntb->dev, "scratchpad is unsafe\n");
 
+	if (ntb_peer_port_count(ntb) != NTB_DEF_PEER_CNT)
+		dev_warn(&ntb->dev, "multi-port NTB is unsupported\n");
+
 	tc = kzalloc(sizeof(*tc), GFP_KERNEL);
 	if (!tc) {
 		rc = -ENOMEM;
@@ -928,7 +959,7 @@ static int tool_probe(struct ntb_client *self, struct ntb_dev *ntb)
 	tc->ntb = ntb;
 	init_waitqueue_head(&tc->link_wq);
 
-	tc->mw_count = min(ntb_mw_count(tc->ntb), MAX_MWS);
+	tc->mw_count = min(ntb_mw_count(tc->ntb, PIDX), MAX_MWS);
 	for (i = 0; i < tc->mw_count; i++) {
 		rc = tool_init_mw(tc, i);
 		if (rc)
diff --git a/drivers/nvdimm/core.c b/drivers/nvdimm/core.c
index 7cd99b1f8596..75bc08c6838c 100644
--- a/drivers/nvdimm/core.c
+++ b/drivers/nvdimm/core.c
@@ -421,14 +421,15 @@ static void set_badblock(struct badblocks *bb, sector_t s, int num)
 static void __add_badblock_range(struct badblocks *bb, u64 ns_offset, u64 len)
 {
 	const unsigned int sector_size = 512;
-	sector_t start_sector;
+	sector_t start_sector, end_sector;
 	u64 num_sectors;
 	u32 rem;
 
 	start_sector = div_u64(ns_offset, sector_size);
-	num_sectors = div_u64_rem(len, sector_size, &rem);
+	end_sector = div_u64_rem(ns_offset + len, sector_size, &rem);
 	if (rem)
-		num_sectors++;
+		end_sector++;
+	num_sectors = end_sector - start_sector;
 
 	if (unlikely(num_sectors > (u64)INT_MAX)) {
 		u64 remaining = num_sectors;
diff --git a/drivers/nvme/host/core.c b/drivers/nvme/host/core.c
index cb96f4a7ae3a..37046ac2c441 100644
--- a/drivers/nvme/host/core.c
+++ b/drivers/nvme/host/core.c
@@ -336,7 +336,7 @@ static int nvme_get_stream_params(struct nvme_ctrl *ctrl,
 
 	c.directive.opcode = nvme_admin_directive_recv;
 	c.directive.nsid = cpu_to_le32(nsid);
-	c.directive.numd = sizeof(*s);
+	c.directive.numd = cpu_to_le32((sizeof(*s) >> 2) - 1);
 	c.directive.doper = NVME_DIR_RCV_ST_OP_PARAM;
 	c.directive.dtype = NVME_DIR_STREAMS;
 
@@ -1509,7 +1509,7 @@ static void nvme_set_queue_limits(struct nvme_ctrl *ctrl,
 	blk_queue_write_cache(q, vwc, vwc);
 }
 
-static void nvme_configure_apst(struct nvme_ctrl *ctrl)
+static int nvme_configure_apst(struct nvme_ctrl *ctrl)
 {
 	/*
 	 * APST (Autonomous Power State Transition) lets us program a
@@ -1538,16 +1538,16 @@ static void nvme_configure_apst(struct nvme_ctrl *ctrl)
 	 * then don't do anything.
 	 */
 	if (!ctrl->apsta)
-		return;
+		return 0;
 
 	if (ctrl->npss > 31) {
 		dev_warn(ctrl->device, "NPSS is invalid; not using APST\n");
-		return;
+		return 0;
 	}
 
 	table = kzalloc(sizeof(*table), GFP_KERNEL);
 	if (!table)
-		return;
+		return 0;
 
 	if (!ctrl->apst_enabled || ctrl->ps_max_latency_us == 0) {
 		/* Turn off APST. */
@@ -1629,6 +1629,7 @@ static void nvme_configure_apst(struct nvme_ctrl *ctrl)
 		dev_err(ctrl->device, "failed to set APST feature (%d)\n", ret);
 
 	kfree(table);
+	return ret;
 }
 
 static void nvme_set_latency_tolerance(struct device *dev, s32 val)
@@ -1835,13 +1836,16 @@ int nvme_init_identify(struct nvme_ctrl *ctrl)
 		 * In fabrics we need to verify the cntlid matches the
 		 * admin connect
 		 */
-		if (ctrl->cntlid != le16_to_cpu(id->cntlid))
+		if (ctrl->cntlid != le16_to_cpu(id->cntlid)) {
 			ret = -EINVAL;
+			goto out_free;
+		}
 
 		if (!ctrl->opts->discovery_nqn && !ctrl->kas) {
 			dev_err(ctrl->device,
 				"keep-alive support is mandatory for fabrics\n");
 			ret = -EINVAL;
+			goto out_free;
 		}
 	} else {
 		ctrl->cntlid = le16_to_cpu(id->cntlid);
@@ -1856,11 +1860,20 @@ int nvme_init_identify(struct nvme_ctrl *ctrl)
 	else if (!ctrl->apst_enabled && prev_apst_enabled)
 		dev_pm_qos_hide_latency_tolerance(ctrl->device);
 
-	nvme_configure_apst(ctrl);
-	nvme_configure_directives(ctrl);
+	ret = nvme_configure_apst(ctrl);
+	if (ret < 0)
+		return ret;
+
+	ret = nvme_configure_directives(ctrl);
+	if (ret < 0)
+		return ret;
 
 	ctrl->identified = true;
 
+	return 0;
+
+out_free:
+	kfree(id);
 	return ret;
 }
 EXPORT_SYMBOL_GPL(nvme_init_identify);
@@ -1995,15 +2008,20 @@ static ssize_t wwid_show(struct device *dev, struct device_attribute *attr,
 	int serial_len = sizeof(ctrl->serial);
 	int model_len = sizeof(ctrl->model);
 
+	if (!uuid_is_null(&ns->uuid))
+		return sprintf(buf, "uuid.%pU\n", &ns->uuid);
+
 	if (memchr_inv(ns->nguid, 0, sizeof(ns->nguid)))
 		return sprintf(buf, "eui.%16phN\n", ns->nguid);
 
 	if (memchr_inv(ns->eui, 0, sizeof(ns->eui)))
 		return sprintf(buf, "eui.%8phN\n", ns->eui);
 
-	while (ctrl->serial[serial_len - 1] == ' ')
+	while (serial_len > 0 && (ctrl->serial[serial_len - 1] == ' ' ||
+				  ctrl->serial[serial_len - 1] == '\0'))
 		serial_len--;
-	while (ctrl->model[model_len - 1] == ' ')
+	while (model_len > 0 && (ctrl->model[model_len - 1] == ' ' ||
+				 ctrl->model[model_len - 1] == '\0'))
 		model_len--;
 
 	return sprintf(buf, "nvme.%04x-%*phN-%*phN-%08x\n", ctrl->vid,
@@ -2709,7 +2727,8 @@ void nvme_kill_queues(struct nvme_ctrl *ctrl)
 	mutex_lock(&ctrl->namespaces_mutex);
 
 	/* Forcibly unquiesce queues to avoid blocking dispatch */
-	blk_mq_unquiesce_queue(ctrl->admin_q);
+	if (ctrl->admin_q)
+		blk_mq_unquiesce_queue(ctrl->admin_q);
 
 	list_for_each_entry(ns, &ctrl->namespaces, list) {
 		/*
diff --git a/drivers/nvme/host/fabrics.c b/drivers/nvme/host/fabrics.c
index 2e582a240943..5f5cd306f76d 100644
--- a/drivers/nvme/host/fabrics.c
+++ b/drivers/nvme/host/fabrics.c
@@ -794,7 +794,8 @@ static int nvmf_check_allowed_opts(struct nvmf_ctrl_options *opts,
 		int i;
 
 		for (i = 0; i < ARRAY_SIZE(opt_tokens); i++) {
-			if (opt_tokens[i].token & ~allowed_opts) {
+			if ((opt_tokens[i].token & opts->mask) &&
+			    (opt_tokens[i].token & ~allowed_opts)) {
 				pr_warn("invalid parameter '%s'\n",
 					opt_tokens[i].pattern);
 			}
diff --git a/drivers/nvme/host/fc.c b/drivers/nvme/host/fc.c
index d666ada39a9b..5c2a08ef08ba 100644
--- a/drivers/nvme/host/fc.c
+++ b/drivers/nvme/host/fc.c
@@ -1888,7 +1888,7 @@ nvme_fc_start_fcp_op(struct nvme_fc_ctrl *ctrl, struct nvme_fc_queue *queue,
 	 * the target device is present
 	 */
 	if (ctrl->rport->remoteport.port_state != FC_OBJSTATE_ONLINE)
-		return BLK_STS_IOERR;
+		goto busy;
 
 	if (!nvme_fc_ctrl_get(ctrl))
 		return BLK_STS_IOERR;
@@ -1958,22 +1958,25 @@ nvme_fc_start_fcp_op(struct nvme_fc_ctrl *ctrl, struct nvme_fc_queue *queue,
 					queue->lldd_handle, &op->fcp_req);
 
 	if (ret) {
-		if (op->rq)			/* normal request */
+		if (!(op->flags & FCOP_FLAGS_AEN))
 			nvme_fc_unmap_data(ctrl, op->rq, op);
-		/* else - aen. no cleanup needed */
 
 		nvme_fc_ctrl_put(ctrl);
 
-		if (ret != -EBUSY)
+		if (ctrl->rport->remoteport.port_state == FC_OBJSTATE_ONLINE &&
+				ret != -EBUSY)
 			return BLK_STS_IOERR;
 
-		if (op->rq)
-			blk_mq_delay_run_hw_queue(queue->hctx, NVMEFC_QUEUE_DELAY);
-
-		return BLK_STS_RESOURCE;
+		goto busy;
 	}
 
 	return BLK_STS_OK;
+
+busy:
+	if (!(op->flags & FCOP_FLAGS_AEN) && queue->hctx)
+		blk_mq_delay_run_hw_queue(queue->hctx, NVMEFC_QUEUE_DELAY);
+
+	return BLK_STS_RESOURCE;
 }
 
 static blk_status_t
@@ -2802,66 +2805,70 @@ out_fail:
 	return ERR_PTR(ret);
 }
 
-enum {
-	FCT_TRADDR_ERR		= 0,
-	FCT_TRADDR_WWNN		= 1 << 0,
-	FCT_TRADDR_WWPN		= 1 << 1,
-};
 
 struct nvmet_fc_traddr {
 	u64	nn;
 	u64	pn;
 };
 
-static const match_table_t traddr_opt_tokens = {
-	{ FCT_TRADDR_WWNN,	"nn-%s"		},
-	{ FCT_TRADDR_WWPN,	"pn-%s"		},
-	{ FCT_TRADDR_ERR,	NULL		}
-};
-
 static int
-nvme_fc_parse_address(struct nvmet_fc_traddr *traddr, char *buf)
+__nvme_fc_parse_u64(substring_t *sstr, u64 *val)
 {
-	substring_t args[MAX_OPT_ARGS];
-	char *options, *o, *p;
-	int token, ret = 0;
 	u64 token64;
 
-	options = o = kstrdup(buf, GFP_KERNEL);
-	if (!options)
-		return -ENOMEM;
+	if (match_u64(sstr, &token64))
+		return -EINVAL;
+	*val = token64;
 
-	while ((p = strsep(&o, ":\n")) != NULL) {
-		if (!*p)
-			continue;
+	return 0;
+}
 
-		token = match_token(p, traddr_opt_tokens, args);
-		switch (token) {
-		case FCT_TRADDR_WWNN:
-			if (match_u64(args, &token64)) {
-				ret = -EINVAL;
-				goto out;
-			}
-			traddr->nn = token64;
-			break;
-		case FCT_TRADDR_WWPN:
-			if (match_u64(args, &token64)) {
-				ret = -EINVAL;
-				goto out;
-			}
-			traddr->pn = token64;
-			break;
-		default:
-			pr_warn("unknown traddr token or missing value '%s'\n",
-					p);
-			ret = -EINVAL;
-			goto out;
-		}
-	}
+/*
+ * This routine validates and extracts the WWN's from the TRADDR string.
+ * As kernel parsers need the 0x to determine number base, universally
+ * build string to parse with 0x prefix before parsing name strings.
+ */
+static int
+nvme_fc_parse_traddr(struct nvmet_fc_traddr *traddr, char *buf, size_t blen)
+{
+	char name[2 + NVME_FC_TRADDR_HEXNAMELEN + 1];
+	substring_t wwn = { name, &name[sizeof(name)-1] };
+	int nnoffset, pnoffset;
+
+	/* validate it string one of the 2 allowed formats */
+	if (strnlen(buf, blen) == NVME_FC_TRADDR_MAXLENGTH &&
+			!strncmp(buf, "nn-0x", NVME_FC_TRADDR_OXNNLEN) &&
+			!strncmp(&buf[NVME_FC_TRADDR_MAX_PN_OFFSET],
+				"pn-0x", NVME_FC_TRADDR_OXNNLEN)) {
+		nnoffset = NVME_FC_TRADDR_OXNNLEN;
+		pnoffset = NVME_FC_TRADDR_MAX_PN_OFFSET +
+						NVME_FC_TRADDR_OXNNLEN;
+	} else if ((strnlen(buf, blen) == NVME_FC_TRADDR_MINLENGTH &&
+			!strncmp(buf, "nn-", NVME_FC_TRADDR_NNLEN) &&
+			!strncmp(&buf[NVME_FC_TRADDR_MIN_PN_OFFSET],
+				"pn-", NVME_FC_TRADDR_NNLEN))) {
+		nnoffset = NVME_FC_TRADDR_NNLEN;
+		pnoffset = NVME_FC_TRADDR_MIN_PN_OFFSET + NVME_FC_TRADDR_NNLEN;
+	} else
+		goto out_einval;
 
-out:
-	kfree(options);
-	return ret;
+	name[0] = '0';
+	name[1] = 'x';
+	name[2 + NVME_FC_TRADDR_HEXNAMELEN] = 0;
+
+	memcpy(&name[2], &buf[nnoffset], NVME_FC_TRADDR_HEXNAMELEN);
+	if (__nvme_fc_parse_u64(&wwn, &traddr->nn))
+		goto out_einval;
+
+	memcpy(&name[2], &buf[pnoffset], NVME_FC_TRADDR_HEXNAMELEN);
+	if (__nvme_fc_parse_u64(&wwn, &traddr->pn))
+		goto out_einval;
+
+	return 0;
+
+out_einval:
+	pr_warn("%s: bad traddr string\n", __func__);
+	return -EINVAL;
 }
 
 static struct nvme_ctrl *
@@ -2875,11 +2882,11 @@ nvme_fc_create_ctrl(struct device *dev, struct nvmf_ctrl_options *opts)
 	unsigned long flags;
 	int ret;
 
-	ret = nvme_fc_parse_address(&raddr, opts->traddr);
+	ret = nvme_fc_parse_traddr(&raddr, opts->traddr, NVMF_TRADDR_SIZE);
 	if (ret || !raddr.nn || !raddr.pn)
 		return ERR_PTR(-EINVAL);
 
-	ret = nvme_fc_parse_address(&laddr, opts->host_traddr);
+	ret = nvme_fc_parse_traddr(&laddr, opts->host_traddr, NVMF_TRADDR_SIZE);
 	if (ret || !laddr.nn || !laddr.pn)
 		return ERR_PTR(-EINVAL);
 
diff --git a/drivers/nvme/host/pci.c b/drivers/nvme/host/pci.c
index d10d2f279d19..925467b31a33 100644
--- a/drivers/nvme/host/pci.c
+++ b/drivers/nvme/host/pci.c
@@ -539,7 +539,7 @@ static void nvme_dif_complete(u32 p, u32 v, struct t10_pi_tuple *pi)
 }
 #endif
 
-static bool nvme_setup_prps(struct nvme_dev *dev, struct request *req)
+static blk_status_t nvme_setup_prps(struct nvme_dev *dev, struct request *req)
 {
 	struct nvme_iod *iod = blk_mq_rq_to_pdu(req);
 	struct dma_pool *pool;
@@ -556,7 +556,7 @@ static bool nvme_setup_prps(struct nvme_dev *dev, struct request *req)
 
 	length -= (page_size - offset);
 	if (length <= 0)
-		return true;
+		return BLK_STS_OK;
 
 	dma_len -= (page_size - offset);
 	if (dma_len) {
@@ -569,7 +569,7 @@ static bool nvme_setup_prps(struct nvme_dev *dev, struct request *req)
 
 	if (length <= page_size) {
 		iod->first_dma = dma_addr;
-		return true;
+		return BLK_STS_OK;
 	}
 
 	nprps = DIV_ROUND_UP(length, page_size);
@@ -585,7 +585,7 @@ static bool nvme_setup_prps(struct nvme_dev *dev, struct request *req)
 	if (!prp_list) {
 		iod->first_dma = dma_addr;
 		iod->npages = -1;
-		return false;
+		return BLK_STS_RESOURCE;
 	}
 	list[0] = prp_list;
 	iod->first_dma = prp_dma;
@@ -595,7 +595,7 @@ static bool nvme_setup_prps(struct nvme_dev *dev, struct request *req)
 			__le64 *old_prp_list = prp_list;
 			prp_list = dma_pool_alloc(pool, GFP_ATOMIC, &prp_dma);
 			if (!prp_list)
-				return false;
+				return BLK_STS_RESOURCE;
 			list[iod->npages++] = prp_list;
 			prp_list[0] = old_prp_list[i - 1];
 			old_prp_list[i - 1] = cpu_to_le64(prp_dma);
@@ -609,13 +609,29 @@ static bool nvme_setup_prps(struct nvme_dev *dev, struct request *req)
 			break;
 		if (dma_len > 0)
 			continue;
-		BUG_ON(dma_len < 0);
+		if (unlikely(dma_len < 0))
+			goto bad_sgl;
 		sg = sg_next(sg);
 		dma_addr = sg_dma_address(sg);
 		dma_len = sg_dma_len(sg);
 	}
 
-	return true;
+	return BLK_STS_OK;
+
+ bad_sgl:
+	if (WARN_ONCE(1, "Invalid SGL for payload:%d nents:%d\n",
+				blk_rq_payload_bytes(req), iod->nents)) {
+		for_each_sg(iod->sg, sg, iod->nents, i) {
+			dma_addr_t phys = sg_phys(sg);
+			pr_warn("sg[%d] phys_addr:%pad offset:%d length:%d "
+			       "dma_address:%pad dma_length:%d\n", i, &phys,
+					sg->offset, sg->length,
+					&sg_dma_address(sg),
+					sg_dma_len(sg));
+		}
+	}
+	return BLK_STS_IOERR;
+
 }
 
 static blk_status_t nvme_map_data(struct nvme_dev *dev, struct request *req,
@@ -637,7 +653,8 @@ static blk_status_t nvme_map_data(struct nvme_dev *dev, struct request *req,
 				DMA_ATTR_NO_WARN))
 		goto out;
 
-	if (!nvme_setup_prps(dev, req))
+	ret = nvme_setup_prps(dev, req);
+	if (ret != BLK_STS_OK)
 		goto out_unmap;
 
 	ret = BLK_STS_IOERR;
@@ -784,6 +801,7 @@ static inline void nvme_handle_cqe(struct nvme_queue *nvmeq,
 		return;
 	}
 
+	nvmeq->cqe_seen = 1;
 	req = blk_mq_tag_to_rq(*nvmeq->tags, cqe->command_id);
 	nvme_end_request(req, cqe->status, cqe->result);
 }
@@ -813,10 +831,8 @@ static void nvme_process_cq(struct nvme_queue *nvmeq)
 		consumed++;
 	}
 
-	if (consumed) {
+	if (consumed)
 		nvme_ring_cq_doorbell(nvmeq);
-		nvmeq->cqe_seen = 1;
-	}
 }
 
 static irqreturn_t nvme_irq(int irq, void *data)
@@ -1541,11 +1557,9 @@ static inline void nvme_release_cmb(struct nvme_dev *dev)
 	if (dev->cmb) {
 		iounmap(dev->cmb);
 		dev->cmb = NULL;
-		if (dev->cmbsz) {
-			sysfs_remove_file_from_group(&dev->ctrl.device->kobj,
-						     &dev_attr_cmb.attr, NULL);
-			dev->cmbsz = 0;
-		}
+		sysfs_remove_file_from_group(&dev->ctrl.device->kobj,
+					     &dev_attr_cmb.attr, NULL);
+		dev->cmbsz = 0;
 	}
 }
 
@@ -1602,7 +1616,7 @@ static void nvme_free_host_mem(struct nvme_dev *dev)
 static int nvme_alloc_host_mem(struct nvme_dev *dev, u64 min, u64 preferred)
 {
 	struct nvme_host_mem_buf_desc *descs;
-	u32 chunk_size, max_entries;
+	u32 chunk_size, max_entries, len;
 	int i = 0;
 	void **bufs;
 	u64 size = 0, tmp;
@@ -1621,10 +1635,10 @@ retry:
 	if (!bufs)
 		goto out_free_descs;
 
-	for (size = 0; size < preferred; size += chunk_size) {
-		u32 len = min_t(u64, chunk_size, preferred - size);
+	for (size = 0; size < preferred; size += len) {
 		dma_addr_t dma_addr;
 
+		len = min_t(u64, chunk_size, preferred - size);
 		bufs[i] = dma_alloc_attrs(dev->dev, len, &dma_addr, GFP_KERNEL,
 				DMA_ATTR_NO_KERNEL_MAPPING | DMA_ATTR_NO_WARN);
 		if (!bufs[i])
@@ -1936,16 +1950,14 @@ static int nvme_pci_enable(struct nvme_dev *dev)
 
 	/*
 	 * CMBs can currently only exist on >=1.2 PCIe devices. We only
-	 * populate sysfs if a CMB is implemented. Note that we add the
-	 * CMB attribute to the nvme_ctrl kobj which removes the need to remove
-	 * it on exit. Since nvme_dev_attrs_group has no name we can pass
-	 * NULL as final argument to sysfs_add_file_to_group.
+	 * populate sysfs if a CMB is implemented. Since nvme_dev_attrs_group
+	 * has no name we can pass NULL as final argument to
+	 * sysfs_add_file_to_group.
 	 */
 
 	if (readl(dev->bar + NVME_REG_VS) >= NVME_VS(1, 2, 0)) {
 		dev->cmb = nvme_map_cmb(dev);
-
-		if (dev->cmbsz) {
+		if (dev->cmb) {
 			if (sysfs_add_file_to_group(&dev->ctrl.device->kobj,
 						    &dev_attr_cmb.attr, NULL))
 				dev_warn(dev->ctrl.device,
@@ -2282,7 +2294,7 @@ static int nvme_probe(struct pci_dev *pdev, const struct pci_device_id *id)
 
 	result = nvme_dev_map(dev);
 	if (result)
-		goto free;
+		goto put_pci;
 
 	INIT_WORK(&dev->ctrl.reset_work, nvme_reset_work);
 	INIT_WORK(&dev->remove_work, nvme_remove_dead_ctrl_work);
@@ -2291,7 +2303,7 @@ static int nvme_probe(struct pci_dev *pdev, const struct pci_device_id *id)
 
 	result = nvme_setup_prp_pools(dev);
 	if (result)
-		goto put_pci;
+		goto unmap;
 
 	quirks |= check_dell_samsung_bug(pdev);
 
@@ -2308,9 +2320,10 @@ static int nvme_probe(struct pci_dev *pdev, const struct pci_device_id *id)
 
  release_pools:
 	nvme_release_prp_pools(dev);
+ unmap:
+	nvme_dev_unmap(dev);
  put_pci:
 	put_device(dev->dev);
-	nvme_dev_unmap(dev);
  free:
 	kfree(dev->queues);
 	kfree(dev);
@@ -2466,6 +2479,9 @@ static const struct pci_device_id nvme_id_table[] = {
 	{ PCI_VDEVICE(INTEL, 0x0a54),
 		.driver_data = NVME_QUIRK_STRIPE_SIZE |
 				NVME_QUIRK_DEALLOCATE_ZEROES, },
+	{ PCI_VDEVICE(INTEL, 0x0a55),
+		.driver_data = NVME_QUIRK_STRIPE_SIZE |
+				NVME_QUIRK_DEALLOCATE_ZEROES, },
 	{ PCI_VDEVICE(INTEL, 0xf1a5),	/* Intel 600P/P3100 */
 		.driver_data = NVME_QUIRK_NO_DEEPEST_PS },
 	{ PCI_VDEVICE(INTEL, 0x5845),	/* Qemu emulated controller */
diff --git a/drivers/nvme/target/admin-cmd.c b/drivers/nvme/target/admin-cmd.c
index 35f930db3c02..a53bb6635b83 100644
--- a/drivers/nvme/target/admin-cmd.c
+++ b/drivers/nvme/target/admin-cmd.c
@@ -168,11 +168,21 @@ out:
 	nvmet_req_complete(req, status);
 }
 
+static void copy_and_pad(char *dst, int dst_len, const char *src, int src_len)
+{
+	int len = min(src_len, dst_len);
+
+	memcpy(dst, src, len);
+	if (dst_len > len)
+		memset(dst + len, ' ', dst_len - len);
+}
+
 static void nvmet_execute_identify_ctrl(struct nvmet_req *req)
 {
 	struct nvmet_ctrl *ctrl = req->sq->ctrl;
 	struct nvme_id_ctrl *id;
 	u16 status = 0;
+	const char model[] = "Linux";
 
 	id = kzalloc(sizeof(*id), GFP_KERNEL);
 	if (!id) {
@@ -184,14 +194,10 @@ static void nvmet_execute_identify_ctrl(struct nvmet_req *req)
 	id->vid = 0;
 	id->ssvid = 0;
 
-	memset(id->sn, ' ', sizeof(id->sn));
-	snprintf(id->sn, sizeof(id->sn), "%llx", ctrl->serial);
-
-	memset(id->mn, ' ', sizeof(id->mn));
-	strncpy((char *)id->mn, "Linux", sizeof(id->mn));
-
-	memset(id->fr, ' ', sizeof(id->fr));
-	strncpy((char *)id->fr, UTS_RELEASE, sizeof(id->fr));
+	bin2hex(id->sn, &ctrl->subsys->serial,
+		min(sizeof(ctrl->subsys->serial), sizeof(id->sn) / 2));
+	copy_and_pad(id->mn, sizeof(id->mn), model, sizeof(model) - 1);
+	copy_and_pad(id->fr, sizeof(id->fr), UTS_RELEASE, strlen(UTS_RELEASE));
 
 	id->rab = 6;
 
diff --git a/drivers/nvme/target/configfs.c b/drivers/nvme/target/configfs.c
index a358ecd93e11..0a0067e771f5 100644
--- a/drivers/nvme/target/configfs.c
+++ b/drivers/nvme/target/configfs.c
@@ -650,7 +650,7 @@ out_unlock:
 
 CONFIGFS_ATTR(nvmet_subsys_, attr_allow_any_host);
 
-static ssize_t nvmet_subsys_version_show(struct config_item *item,
+static ssize_t nvmet_subsys_attr_version_show(struct config_item *item,
 					      char *page)
 {
 	struct nvmet_subsys *subsys = to_subsys(item);
@@ -666,7 +666,7 @@ static ssize_t nvmet_subsys_version_show(struct config_item *item,
 				(int)NVME_MINOR(subsys->ver));
 }
 
-static ssize_t nvmet_subsys_version_store(struct config_item *item,
+static ssize_t nvmet_subsys_attr_version_store(struct config_item *item,
 					       const char *page, size_t count)
 {
 	struct nvmet_subsys *subsys = to_subsys(item);
@@ -684,11 +684,33 @@ static ssize_t nvmet_subsys_version_store(struct config_item *item,
 
 	return count;
 }
-CONFIGFS_ATTR(nvmet_subsys_, version);
+CONFIGFS_ATTR(nvmet_subsys_, attr_version);
+
+static ssize_t nvmet_subsys_attr_serial_show(struct config_item *item,
+					     char *page)
+{
+	struct nvmet_subsys *subsys = to_subsys(item);
+
+	return snprintf(page, PAGE_SIZE, "%llx\n", subsys->serial);
+}
+
+static ssize_t nvmet_subsys_attr_serial_store(struct config_item *item,
+					      const char *page, size_t count)
+{
+	struct nvmet_subsys *subsys = to_subsys(item);
+
+	down_write(&nvmet_config_sem);
+	sscanf(page, "%llx\n", &subsys->serial);
+	up_write(&nvmet_config_sem);
+
+	return count;
+}
+CONFIGFS_ATTR(nvmet_subsys_, attr_serial);
 
 static struct configfs_attribute *nvmet_subsys_attrs[] = {
 	&nvmet_subsys_attr_attr_allow_any_host,
-	&nvmet_subsys_attr_version,
+	&nvmet_subsys_attr_attr_version,
+	&nvmet_subsys_attr_attr_serial,
 	NULL,
 };
 
diff --git a/drivers/nvme/target/core.c b/drivers/nvme/target/core.c
index b5b4ac103748..f4b02bb4a1a8 100644
--- a/drivers/nvme/target/core.c
+++ b/drivers/nvme/target/core.c
@@ -767,9 +767,6 @@ u16 nvmet_alloc_ctrl(const char *subsysnqn, const char *hostnqn,
 	memcpy(ctrl->subsysnqn, subsysnqn, NVMF_NQN_SIZE);
 	memcpy(ctrl->hostnqn, hostnqn, NVMF_NQN_SIZE);
 
-	/* generate a random serial number as our controllers are ephemeral: */
-	get_random_bytes(&ctrl->serial, sizeof(ctrl->serial));
-
 	kref_init(&ctrl->ref);
 	ctrl->subsys = subsys;
 
@@ -928,6 +925,8 @@ struct nvmet_subsys *nvmet_subsys_alloc(const char *subsysnqn,
 		return NULL;
 
 	subsys->ver = NVME_VS(1, 3, 0); /* NVMe 1.3.0 */
+	/* generate a random serial number as our controllers are ephemeral: */
+	get_random_bytes(&subsys->serial, sizeof(subsys->serial));
 
 	switch (type) {
 	case NVME_NQN_NVME:
diff --git a/drivers/nvme/target/fc.c b/drivers/nvme/target/fc.c
index 1e6dcc241b3c..309c84aa7595 100644
--- a/drivers/nvme/target/fc.c
+++ b/drivers/nvme/target/fc.c
@@ -114,6 +114,11 @@ struct nvmet_fc_tgtport {
 	struct kref			ref;
 };
 
+struct nvmet_fc_defer_fcp_req {
+	struct list_head		req_list;
+	struct nvmefc_tgt_fcp_req	*fcp_req;
+};
+
 struct nvmet_fc_tgt_queue {
 	bool				ninetypercent;
 	u16				qid;
@@ -132,6 +137,8 @@ struct nvmet_fc_tgt_queue {
 	struct nvmet_fc_tgt_assoc	*assoc;
 	struct nvmet_fc_fcp_iod		*fod;		/* array of fcp_iods */
 	struct list_head		fod_list;
+	struct list_head		pending_cmd_list;
+	struct list_head		avail_defer_list;
 	struct workqueue_struct		*work_q;
 	struct kref			ref;
 } __aligned(sizeof(unsigned long long));
@@ -223,6 +230,8 @@ static void nvmet_fc_tgt_q_put(struct nvmet_fc_tgt_queue *queue);
 static int nvmet_fc_tgt_q_get(struct nvmet_fc_tgt_queue *queue);
 static void nvmet_fc_tgtport_put(struct nvmet_fc_tgtport *tgtport);
 static int nvmet_fc_tgtport_get(struct nvmet_fc_tgtport *tgtport);
+static void nvmet_fc_handle_fcp_rqst(struct nvmet_fc_tgtport *tgtport,
+					struct nvmet_fc_fcp_iod *fod);
 
 
 /* *********************** FC-NVME DMA Handling **************************** */
@@ -385,7 +394,7 @@ nvmet_fc_free_ls_iodlist(struct nvmet_fc_tgtport *tgtport)
 static struct nvmet_fc_ls_iod *
 nvmet_fc_alloc_ls_iod(struct nvmet_fc_tgtport *tgtport)
 {
-	static struct nvmet_fc_ls_iod *iod;
+	struct nvmet_fc_ls_iod *iod;
 	unsigned long flags;
 
 	spin_lock_irqsave(&tgtport->lock, flags);
@@ -462,10 +471,10 @@ nvmet_fc_destroy_fcp_iodlist(struct nvmet_fc_tgtport *tgtport,
 static struct nvmet_fc_fcp_iod *
 nvmet_fc_alloc_fcp_iod(struct nvmet_fc_tgt_queue *queue)
 {
-	static struct nvmet_fc_fcp_iod *fod;
-	unsigned long flags;
+	struct nvmet_fc_fcp_iod *fod;
+
+	lockdep_assert_held(&queue->qlock);
 
-	spin_lock_irqsave(&queue->qlock, flags);
 	fod = list_first_entry_or_null(&queue->fod_list,
 					struct nvmet_fc_fcp_iod, fcp_list);
 	if (fod) {
@@ -477,17 +486,37 @@ nvmet_fc_alloc_fcp_iod(struct nvmet_fc_tgt_queue *queue)
 		 * will "inherit" that reference.
 		 */
 	}
-	spin_unlock_irqrestore(&queue->qlock, flags);
 	return fod;
 }
 
 
 static void
+nvmet_fc_queue_fcp_req(struct nvmet_fc_tgtport *tgtport,
+		       struct nvmet_fc_tgt_queue *queue,
+		       struct nvmefc_tgt_fcp_req *fcpreq)
+{
+	struct nvmet_fc_fcp_iod *fod = fcpreq->nvmet_fc_private;
+
+	/*
+	 * put all admin cmds on hw queue id 0. All io commands go to
+	 * the respective hw queue based on a modulo basis
+	 */
+	fcpreq->hwqid = queue->qid ?
+			((queue->qid - 1) % tgtport->ops->max_hw_queues) : 0;
+
+	if (tgtport->ops->target_features & NVMET_FCTGTFEAT_CMD_IN_ISR)
+		queue_work_on(queue->cpu, queue->work_q, &fod->work);
+	else
+		nvmet_fc_handle_fcp_rqst(tgtport, fod);
+}
+
+static void
 nvmet_fc_free_fcp_iod(struct nvmet_fc_tgt_queue *queue,
 			struct nvmet_fc_fcp_iod *fod)
 {
 	struct nvmefc_tgt_fcp_req *fcpreq = fod->fcpreq;
 	struct nvmet_fc_tgtport *tgtport = fod->tgtport;
+	struct nvmet_fc_defer_fcp_req *deferfcp;
 	unsigned long flags;
 
 	fc_dma_sync_single_for_cpu(tgtport->dev, fod->rspdma,
@@ -495,21 +524,56 @@ nvmet_fc_free_fcp_iod(struct nvmet_fc_tgt_queue *queue,
 
 	fcpreq->nvmet_fc_private = NULL;
 
-	spin_lock_irqsave(&queue->qlock, flags);
-	list_add_tail(&fod->fcp_list, &fod->queue->fod_list);
 	fod->active = false;
 	fod->abort = false;
 	fod->aborted = false;
 	fod->writedataactive = false;
 	fod->fcpreq = NULL;
+
+	tgtport->ops->fcp_req_release(&tgtport->fc_target_port, fcpreq);
+
+	spin_lock_irqsave(&queue->qlock, flags);
+	deferfcp = list_first_entry_or_null(&queue->pending_cmd_list,
+				struct nvmet_fc_defer_fcp_req, req_list);
+	if (!deferfcp) {
+		list_add_tail(&fod->fcp_list, &fod->queue->fod_list);
+		spin_unlock_irqrestore(&queue->qlock, flags);
+
+		/* Release reference taken at queue lookup and fod allocation */
+		nvmet_fc_tgt_q_put(queue);
+		return;
+	}
+
+	/* Re-use the fod for the next pending cmd that was deferred */
+	list_del(&deferfcp->req_list);
+
+	fcpreq = deferfcp->fcp_req;
+
+	/* deferfcp can be reused for another IO at a later date */
+	list_add_tail(&deferfcp->req_list, &queue->avail_defer_list);
+
 	spin_unlock_irqrestore(&queue->qlock, flags);
 
+	/* Save NVME CMD IO in fod */
+	memcpy(&fod->cmdiubuf, fcpreq->rspaddr, fcpreq->rsplen);
+
+	/* Setup new fcpreq to be processed */
+	fcpreq->rspaddr = NULL;
+	fcpreq->rsplen  = 0;
+	fcpreq->nvmet_fc_private = fod;
+	fod->fcpreq = fcpreq;
+	fod->active = true;
+
+	/* inform LLDD IO is now being processed */
+	tgtport->ops->defer_rcv(&tgtport->fc_target_port, fcpreq);
+
+	/* Submit deferred IO for processing */
+	nvmet_fc_queue_fcp_req(tgtport, queue, fcpreq);
+
 	/*
-	 * release the reference taken at queue lookup and fod allocation
+	 * Leave the queue lookup get reference taken when
+	 * fod was originally allocated.
 	 */
-	nvmet_fc_tgt_q_put(queue);
-
-	tgtport->ops->fcp_req_release(&tgtport->fc_target_port, fcpreq);
 }
 
 static int
@@ -569,6 +633,8 @@ nvmet_fc_alloc_target_queue(struct nvmet_fc_tgt_assoc *assoc,
 	queue->port = assoc->tgtport->port;
 	queue->cpu = nvmet_fc_queue_to_cpu(assoc->tgtport, qid);
 	INIT_LIST_HEAD(&queue->fod_list);
+	INIT_LIST_HEAD(&queue->avail_defer_list);
+	INIT_LIST_HEAD(&queue->pending_cmd_list);
 	atomic_set(&queue->connected, 0);
 	atomic_set(&queue->sqtail, 0);
 	atomic_set(&queue->rsn, 1);
@@ -638,6 +704,7 @@ nvmet_fc_delete_target_queue(struct nvmet_fc_tgt_queue *queue)
 {
 	struct nvmet_fc_tgtport *tgtport = queue->assoc->tgtport;
 	struct nvmet_fc_fcp_iod *fod = queue->fod;
+	struct nvmet_fc_defer_fcp_req *deferfcp, *tempptr;
 	unsigned long flags;
 	int i, writedataactive;
 	bool disconnect;
@@ -666,6 +733,36 @@ nvmet_fc_delete_target_queue(struct nvmet_fc_tgt_queue *queue)
 			}
 		}
 	}
+
+	/* Cleanup defer'ed IOs in queue */
+	list_for_each_entry_safe(deferfcp, tempptr, &queue->avail_defer_list,
+				req_list) {
+		list_del(&deferfcp->req_list);
+		kfree(deferfcp);
+	}
+
+	for (;;) {
+		deferfcp = list_first_entry_or_null(&queue->pending_cmd_list,
+				struct nvmet_fc_defer_fcp_req, req_list);
+		if (!deferfcp)
+			break;
+
+		list_del(&deferfcp->req_list);
+		spin_unlock_irqrestore(&queue->qlock, flags);
+
+		tgtport->ops->defer_rcv(&tgtport->fc_target_port,
+				deferfcp->fcp_req);
+
+		tgtport->ops->fcp_abort(&tgtport->fc_target_port,
+				deferfcp->fcp_req);
+
+		tgtport->ops->fcp_req_release(&tgtport->fc_target_port,
+				deferfcp->fcp_req);
+
+		kfree(deferfcp);
+
+		spin_lock_irqsave(&queue->qlock, flags);
+	}
 	spin_unlock_irqrestore(&queue->qlock, flags);
 
 	flush_workqueue(queue->work_q);
@@ -1174,14 +1271,14 @@ nvmet_fc_ls_create_association(struct nvmet_fc_tgtport *tgtport,
 	 */
 	if (iod->rqstdatalen < FCNVME_LSDESC_CRA_RQST_MINLEN)
 		ret = VERR_CR_ASSOC_LEN;
-	else if (rqst->desc_list_len <
-			cpu_to_be32(FCNVME_LSDESC_CRA_RQST_MIN_LISTLEN))
+	else if (be32_to_cpu(rqst->desc_list_len) <
+			FCNVME_LSDESC_CRA_RQST_MIN_LISTLEN)
 		ret = VERR_CR_ASSOC_RQST_LEN;
 	else if (rqst->assoc_cmd.desc_tag !=
 			cpu_to_be32(FCNVME_LSDESC_CREATE_ASSOC_CMD))
 		ret = VERR_CR_ASSOC_CMD;
-	else if (rqst->assoc_cmd.desc_len <
-			cpu_to_be32(FCNVME_LSDESC_CRA_CMD_DESC_MIN_DESCLEN))
+	else if (be32_to_cpu(rqst->assoc_cmd.desc_len) <
+			FCNVME_LSDESC_CRA_CMD_DESC_MIN_DESCLEN)
 		ret = VERR_CR_ASSOC_CMD_LEN;
 	else if (!rqst->assoc_cmd.ersp_ratio ||
 		 (be16_to_cpu(rqst->assoc_cmd.ersp_ratio) >=
@@ -2172,11 +2269,38 @@ nvmet_fc_handle_fcp_rqst_work(struct work_struct *work)
  * Pass a FC-NVME FCP CMD IU received from the FC link to the nvmet-fc
  * layer for processing.
  *
- * The nvmet-fc layer will copy cmd payload to an internal structure for
- * processing.  As such, upon completion of the routine, the LLDD may
- * immediately free/reuse the CMD IU buffer passed in the call.
+ * The nvmet_fc layer allocates a local job structure (struct
+ * nvmet_fc_fcp_iod) from the queue for the io and copies the
+ * CMD IU buffer to the job structure. As such, on a successful
+ * completion (returns 0), the LLDD may immediately free/reuse
+ * the CMD IU buffer passed in the call.
+ *
+ * However, in some circumstances, due to the packetized nature of FC
+ * and the api of the FC LLDD which may issue a hw command to send the
+ * response, but the LLDD may not get the hw completion for that command
+ * and upcall the nvmet_fc layer before a new command may be
+ * asynchronously received - its possible for a command to be received
+ * before the LLDD and nvmet_fc have recycled the job structure. It gives
+ * the appearance of more commands received than fits in the sq.
+ * To alleviate this scenario, a temporary queue is maintained in the
+ * transport for pending LLDD requests waiting for a queue job structure.
+ * In these "overrun" cases, a temporary queue element is allocated
+ * the LLDD request and CMD iu buffer information remembered, and the
+ * routine returns a -EOVERFLOW status. Subsequently, when a queue job
+ * structure is freed, it is immediately reallocated for anything on the
+ * pending request list. The LLDDs defer_rcv() callback is called,
+ * informing the LLDD that it may reuse the CMD IU buffer, and the io
+ * is then started normally with the transport.
  *
- * If this routine returns error, the lldd should abort the exchange.
+ * The LLDD, when receiving an -EOVERFLOW completion status, is to treat
+ * the completion as successful but must not reuse the CMD IU buffer
+ * until the LLDD's defer_rcv() callback has been called for the
+ * corresponding struct nvmefc_tgt_fcp_req pointer.
+ *
+ * If there is any other condition in which an error occurs, the
+ * transport will return a non-zero status indicating the error.
+ * In all cases other than -EOVERFLOW, the transport has not accepted the
+ * request and the LLDD should abort the exchange.
  *
  * @target_port: pointer to the (registered) target port the FCP CMD IU
  *              was received on.
@@ -2194,6 +2318,8 @@ nvmet_fc_rcv_fcp_req(struct nvmet_fc_target_port *target_port,
 	struct nvme_fc_cmd_iu *cmdiu = cmdiubuf;
 	struct nvmet_fc_tgt_queue *queue;
 	struct nvmet_fc_fcp_iod *fod;
+	struct nvmet_fc_defer_fcp_req *deferfcp;
+	unsigned long flags;
 
 	/* validate iu, so the connection id can be used to find the queue */
 	if ((cmdiubuf_len != sizeof(*cmdiu)) ||
@@ -2214,29 +2340,60 @@ nvmet_fc_rcv_fcp_req(struct nvmet_fc_target_port *target_port,
 	 * when the fod is freed.
 	 */
 
+	spin_lock_irqsave(&queue->qlock, flags);
+
 	fod = nvmet_fc_alloc_fcp_iod(queue);
-	if (!fod) {
+	if (fod) {
+		spin_unlock_irqrestore(&queue->qlock, flags);
+
+		fcpreq->nvmet_fc_private = fod;
+		fod->fcpreq = fcpreq;
+
+		memcpy(&fod->cmdiubuf, cmdiubuf, cmdiubuf_len);
+
+		nvmet_fc_queue_fcp_req(tgtport, queue, fcpreq);
+
+		return 0;
+	}
+
+	if (!tgtport->ops->defer_rcv) {
+		spin_unlock_irqrestore(&queue->qlock, flags);
 		/* release the queue lookup reference */
 		nvmet_fc_tgt_q_put(queue);
 		return -ENOENT;
 	}
 
-	fcpreq->nvmet_fc_private = fod;
-	fod->fcpreq = fcpreq;
-	/*
-	 * put all admin cmds on hw queue id 0. All io commands go to
-	 * the respective hw queue based on a modulo basis
-	 */
-	fcpreq->hwqid = queue->qid ?
-			((queue->qid - 1) % tgtport->ops->max_hw_queues) : 0;
-	memcpy(&fod->cmdiubuf, cmdiubuf, cmdiubuf_len);
+	deferfcp = list_first_entry_or_null(&queue->avail_defer_list,
+			struct nvmet_fc_defer_fcp_req, req_list);
+	if (deferfcp) {
+		/* Just re-use one that was previously allocated */
+		list_del(&deferfcp->req_list);
+	} else {
+		spin_unlock_irqrestore(&queue->qlock, flags);
 
-	if (tgtport->ops->target_features & NVMET_FCTGTFEAT_CMD_IN_ISR)
-		queue_work_on(queue->cpu, queue->work_q, &fod->work);
-	else
-		nvmet_fc_handle_fcp_rqst(tgtport, fod);
+		/* Now we need to dynamically allocate one */
+		deferfcp = kmalloc(sizeof(*deferfcp), GFP_KERNEL);
+		if (!deferfcp) {
+			/* release the queue lookup reference */
+			nvmet_fc_tgt_q_put(queue);
+			return -ENOMEM;
+		}
+		spin_lock_irqsave(&queue->qlock, flags);
+	}
 
-	return 0;
+	/* For now, use rspaddr / rsplen to save payload information */
+	fcpreq->rspaddr = cmdiubuf;
+	fcpreq->rsplen  = cmdiubuf_len;
+	deferfcp->fcp_req = fcpreq;
+
+	/* defer processing till a fod becomes available */
+	list_add_tail(&deferfcp->req_list, &queue->pending_cmd_list);
+
+	/* NOTE: the queue lookup reference is still valid */
+
+	spin_unlock_irqrestore(&queue->qlock, flags);
+
+	return -EOVERFLOW;
 }
 EXPORT_SYMBOL_GPL(nvmet_fc_rcv_fcp_req);
 
@@ -2293,66 +2450,70 @@ nvmet_fc_rcv_fcp_abort(struct nvmet_fc_target_port *target_port,
 }
 EXPORT_SYMBOL_GPL(nvmet_fc_rcv_fcp_abort);
 
-enum {
-	FCT_TRADDR_ERR		= 0,
-	FCT_TRADDR_WWNN		= 1 << 0,
-	FCT_TRADDR_WWPN		= 1 << 1,
-};
 
 struct nvmet_fc_traddr {
 	u64	nn;
 	u64	pn;
 };
 
-static const match_table_t traddr_opt_tokens = {
-	{ FCT_TRADDR_WWNN,	"nn-%s"		},
-	{ FCT_TRADDR_WWPN,	"pn-%s"		},
-	{ FCT_TRADDR_ERR,	NULL		}
-};
-
 static int
-nvmet_fc_parse_traddr(struct nvmet_fc_traddr *traddr, char *buf)
+__nvme_fc_parse_u64(substring_t *sstr, u64 *val)
 {
-	substring_t args[MAX_OPT_ARGS];
-	char *options, *o, *p;
-	int token, ret = 0;
 	u64 token64;
 
-	options = o = kstrdup(buf, GFP_KERNEL);
-	if (!options)
-		return -ENOMEM;
+	if (match_u64(sstr, &token64))
+		return -EINVAL;
+	*val = token64;
 
-	while ((p = strsep(&o, ":\n")) != NULL) {
-		if (!*p)
-			continue;
+	return 0;
+}
 
-		token = match_token(p, traddr_opt_tokens, args);
-		switch (token) {
-		case FCT_TRADDR_WWNN:
-			if (match_u64(args, &token64)) {
-				ret = -EINVAL;
-				goto out;
-			}
-			traddr->nn = token64;
-			break;
-		case FCT_TRADDR_WWPN:
-			if (match_u64(args, &token64)) {
-				ret = -EINVAL;
-				goto out;
-			}
-			traddr->pn = token64;
-			break;
-		default:
-			pr_warn("unknown traddr token or missing value '%s'\n",
-					p);
-			ret = -EINVAL;
-			goto out;
-		}
-	}
+/*
+ * This routine validates and extracts the WWN's from the TRADDR string.
+ * As kernel parsers need the 0x to determine number base, universally
+ * build string to parse with 0x prefix before parsing name strings.
+ */
+static int
+nvme_fc_parse_traddr(struct nvmet_fc_traddr *traddr, char *buf, size_t blen)
+{
+	char name[2 + NVME_FC_TRADDR_HEXNAMELEN + 1];
+	substring_t wwn = { name, &name[sizeof(name)-1] };
+	int nnoffset, pnoffset;
+
+	/* validate it string one of the 2 allowed formats */
+	if (strnlen(buf, blen) == NVME_FC_TRADDR_MAXLENGTH &&
+			!strncmp(buf, "nn-0x", NVME_FC_TRADDR_OXNNLEN) &&
+			!strncmp(&buf[NVME_FC_TRADDR_MAX_PN_OFFSET],
+				"pn-0x", NVME_FC_TRADDR_OXNNLEN)) {
+		nnoffset = NVME_FC_TRADDR_OXNNLEN;
+		pnoffset = NVME_FC_TRADDR_MAX_PN_OFFSET +
+						NVME_FC_TRADDR_OXNNLEN;
+	} else if ((strnlen(buf, blen) == NVME_FC_TRADDR_MINLENGTH &&
+			!strncmp(buf, "nn-", NVME_FC_TRADDR_NNLEN) &&
+			!strncmp(&buf[NVME_FC_TRADDR_MIN_PN_OFFSET],
+				"pn-", NVME_FC_TRADDR_NNLEN))) {
+		nnoffset = NVME_FC_TRADDR_NNLEN;
+		pnoffset = NVME_FC_TRADDR_MIN_PN_OFFSET + NVME_FC_TRADDR_NNLEN;
+	} else
+		goto out_einval;
+
+	name[0] = '0';
+	name[1] = 'x';
+	name[2 + NVME_FC_TRADDR_HEXNAMELEN] = 0;
+
+	memcpy(&name[2], &buf[nnoffset], NVME_FC_TRADDR_HEXNAMELEN);
+	if (__nvme_fc_parse_u64(&wwn, &traddr->nn))
+		goto out_einval;
+
+	memcpy(&name[2], &buf[pnoffset], NVME_FC_TRADDR_HEXNAMELEN);
+	if (__nvme_fc_parse_u64(&wwn, &traddr->pn))
+		goto out_einval;
 
-out:
-	kfree(options);
-	return ret;
+	return 0;
+
+out_einval:
+	pr_warn("%s: bad traddr string\n", __func__);
+	return -EINVAL;
 }
 
 static int
@@ -2370,7 +2531,8 @@ nvmet_fc_add_port(struct nvmet_port *port)
 
 	/* map the traddr address info to a target port */
 
-	ret = nvmet_fc_parse_traddr(&traddr, port->disc_addr.traddr);
+	ret = nvme_fc_parse_traddr(&traddr, port->disc_addr.traddr,
+			sizeof(port->disc_addr.traddr));
 	if (ret)
 		return ret;
 
diff --git a/drivers/nvme/target/nvmet.h b/drivers/nvme/target/nvmet.h
index 747bbdb4f9c6..e3b244c7e443 100644
--- a/drivers/nvme/target/nvmet.h
+++ b/drivers/nvme/target/nvmet.h
@@ -112,7 +112,6 @@ struct nvmet_ctrl {
 
 	struct mutex		lock;
 	u64			cap;
-	u64			serial;
 	u32			cc;
 	u32			csts;
 
@@ -152,6 +151,7 @@ struct nvmet_subsys {
 	u16			max_qid;
 
 	u64			ver;
+	u64			serial;
 	char			*subsysnqn;
 
 	struct config_group	group;
diff --git a/drivers/nvmem/rockchip-efuse.c b/drivers/nvmem/rockchip-efuse.c
index a0d4ede9b8fc..63e3eb55f3ac 100644
--- a/drivers/nvmem/rockchip-efuse.c
+++ b/drivers/nvmem/rockchip-efuse.c
@@ -170,7 +170,7 @@ static const struct of_device_id rockchip_efuse_match[] = {
 		.data = (void *)&rockchip_rk3288_efuse_read,
 	},
 	{
-		.compatible = "rockchip,rk322x-efuse",
+		.compatible = "rockchip,rk3228-efuse",
 		.data = (void *)&rockchip_rk3288_efuse_read,
 	},
 	{
diff --git a/drivers/of/device.c b/drivers/of/device.c
index 28c38c756f92..e0a28ea341fe 100644
--- a/drivers/of/device.c
+++ b/drivers/of/device.c
@@ -89,6 +89,7 @@ int of_dma_configure(struct device *dev, struct device_node *np)
 	bool coherent;
 	unsigned long offset;
 	const struct iommu_ops *iommu;
+	u64 mask;
 
 	/*
 	 * Set default coherent_dma_mask to 32 bit.  Drivers are expected to
@@ -134,10 +135,9 @@ int of_dma_configure(struct device *dev, struct device_node *np)
 	 * Limit coherent and dma mask based on size and default mask
 	 * set by the driver.
 	 */
-	dev->coherent_dma_mask = min(dev->coherent_dma_mask,
-				     DMA_BIT_MASK(ilog2(dma_addr + size)));
-	*dev->dma_mask = min((*dev->dma_mask),
-			     DMA_BIT_MASK(ilog2(dma_addr + size)));
+	mask = DMA_BIT_MASK(ilog2(dma_addr + size - 1) + 1);
+	dev->coherent_dma_mask &= mask;
+	*dev->dma_mask &= mask;
 
 	coherent = of_dma_is_coherent(np);
 	dev_dbg(dev, "device is%sdma coherent\n",
diff --git a/drivers/of/irq.c b/drivers/of/irq.c
index 6ce72aa65425..ab21c846eb27 100644
--- a/drivers/of/irq.c
+++ b/drivers/of/irq.c
@@ -476,7 +476,7 @@ int of_irq_to_resource_table(struct device_node *dev, struct resource *res,
 	int i;
 
 	for (i = 0; i < nr_irqs; i++, res++)
-		if (!of_irq_to_resource(dev, i, res))
+		if (of_irq_to_resource(dev, i, res) <= 0)
 			break;
 
 	return i;
diff --git a/drivers/of/property.c b/drivers/of/property.c
index eda50b4be934..067f9fab7b77 100644
--- a/drivers/of/property.c
+++ b/drivers/of/property.c
@@ -708,6 +708,15 @@ struct device_node *of_graph_get_port_parent(struct device_node *node)
 {
 	unsigned int depth;
 
+	if (!node)
+		return NULL;
+
+	/*
+	 * Preserve usecount for passed in node as of_get_next_parent()
+	 * will do of_node_put() on it.
+	 */
+	of_node_get(node);
+
 	/* Walk 3 levels up only if there is 'ports' node. */
 	for (depth = 3; depth && node; depth--) {
 		node = of_get_next_parent(node);
@@ -728,12 +737,16 @@ EXPORT_SYMBOL(of_graph_get_port_parent);
 struct device_node *of_graph_get_remote_port_parent(
 			       const struct device_node *node)
 {
-	struct device_node *np;
+	struct device_node *np, *pp;
 
 	/* Get remote endpoint node. */
 	np = of_graph_get_remote_endpoint(node);
 
-	return of_graph_get_port_parent(np);
+	pp = of_graph_get_port_parent(np);
+
+	of_node_put(np);
+
+	return pp;
 }
 EXPORT_SYMBOL(of_graph_get_remote_port_parent);
 
diff --git a/drivers/parisc/dino.c b/drivers/parisc/dino.c
index 5c63b920b471..ed92c1254cff 100644
--- a/drivers/parisc/dino.c
+++ b/drivers/parisc/dino.c
@@ -956,7 +956,7 @@ static int __init dino_probe(struct parisc_device *dev)
 
 	dino_dev->hba.dev = dev;
 	dino_dev->hba.base_addr = ioremap_nocache(hpa, 4096);
-	dino_dev->hba.lmmio_space_offset = 0;	/* CPU addrs == bus addrs */
+	dino_dev->hba.lmmio_space_offset = PCI_F_EXTEND;
 	spin_lock_init(&dino_dev->dinosaur_pen);
 	dino_dev->hba.iommu = ccio_get_iommu(dev);
 
diff --git a/drivers/parisc/pdc_stable.c b/drivers/parisc/pdc_stable.c
index 055f83fddc18..b1ff46fe4547 100644
--- a/drivers/parisc/pdc_stable.c
+++ b/drivers/parisc/pdc_stable.c
@@ -333,11 +333,11 @@ pdcspath_hwpath_write(struct pdcspath_entry *entry, const char *buf, size_t coun
 	
 	/* Update the symlink to the real device */
 	sysfs_remove_link(&entry->kobj, "device");
+	write_unlock(&entry->rw_lock);
+
 	ret = sysfs_create_link(&entry->kobj, &entry->dev->kobj, "device");
 	WARN_ON(ret);
 
-	write_unlock(&entry->rw_lock);
-	
 	printk(KERN_INFO PDCS_PREFIX ": changed \"%s\" path to \"%s\"\n",
 		entry->name, buf);
 	
@@ -954,7 +954,7 @@ static struct attribute *pdcs_subsys_attrs[] = {
 	NULL,
 };
 
-static struct attribute_group pdcs_attr_group = {
+static const struct attribute_group pdcs_attr_group = {
 	.attrs = pdcs_subsys_attrs,
 };
 
@@ -998,6 +998,7 @@ pdcs_register_pathentries(void)
 		/* kobject is now registered */
 		write_lock(&entry->rw_lock);
 		entry->ready = 2;
+		write_unlock(&entry->rw_lock);
 		
 		/* Add a nice symlink to the real device */
 		if (entry->dev) {
@@ -1005,7 +1006,6 @@ pdcs_register_pathentries(void)
 			WARN_ON(err);
 		}
 
-		write_unlock(&entry->rw_lock);
 		kobject_uevent(&entry->kobj, KOBJ_ADD);
 	}
 	
diff --git a/drivers/pci/host/pcie-rockchip.c b/drivers/pci/host/pcie-rockchip.c
index 5acf8694fb23..7bb9870f6d8c 100644
--- a/drivers/pci/host/pcie-rockchip.c
+++ b/drivers/pci/host/pcie-rockchip.c
@@ -1483,7 +1483,7 @@ static int rockchip_pcie_probe(struct platform_device *pdev)
 	bridge->swizzle_irq = pci_common_swizzle;
 
 	err = pci_scan_root_bus_bridge(bridge);
-	if (!err)
+	if (err < 0)
 		goto err_free_res;
 
 	bus = bridge->bus;
diff --git a/drivers/pci/pci-driver.c b/drivers/pci/pci-driver.c
index 607f677f48d2..d51e8738f9c2 100644
--- a/drivers/pci/pci-driver.c
+++ b/drivers/pci/pci-driver.c
@@ -511,6 +511,7 @@ static int pci_restore_standard_config(struct pci_dev *pci_dev)
 	}
 
 	pci_restore_state(pci_dev);
+	pci_pme_restore(pci_dev);
 	return 0;
 }
 
@@ -522,6 +523,7 @@ static void pci_pm_default_resume_early(struct pci_dev *pci_dev)
 {
 	pci_power_up(pci_dev);
 	pci_restore_state(pci_dev);
+	pci_pme_restore(pci_dev);
 	pci_fixup_device(pci_fixup_resume_early, pci_dev);
 }
 
diff --git a/drivers/pci/pci.c b/drivers/pci/pci.c
index d88edf5c563b..fdf65a6c13f6 100644
--- a/drivers/pci/pci.c
+++ b/drivers/pci/pci.c
@@ -514,7 +514,7 @@ EXPORT_SYMBOL(pci_find_resource);
  */
 struct pci_dev *pci_find_pcie_root_port(struct pci_dev *dev)
 {
-	struct pci_dev *bridge, *highest_pcie_bridge = NULL;
+	struct pci_dev *bridge, *highest_pcie_bridge = dev;
 
 	bridge = pci_upstream_bridge(dev);
 	while (bridge && pci_is_pcie(bridge)) {
@@ -1801,7 +1801,11 @@ static void __pci_pme_active(struct pci_dev *dev, bool enable)
 	pci_write_config_word(dev, dev->pm_cap + PCI_PM_CTRL, pmcsr);
 }
 
-static void pci_pme_restore(struct pci_dev *dev)
+/**
+ * pci_pme_restore - Restore PME configuration after config space restore.
+ * @dev: PCI device to update.
+ */
+void pci_pme_restore(struct pci_dev *dev)
 {
 	u16 pmcsr;
 
@@ -1811,6 +1815,7 @@ static void pci_pme_restore(struct pci_dev *dev)
 	pci_read_config_word(dev, dev->pm_cap + PCI_PM_CTRL, &pmcsr);
 	if (dev->wakeup_prepared) {
 		pmcsr |= PCI_PM_CTRL_PME_ENABLE;
+		pmcsr &= ~PCI_PM_CTRL_PME_STATUS;
 	} else {
 		pmcsr &= ~PCI_PM_CTRL_PME_ENABLE;
 		pmcsr |= PCI_PM_CTRL_PME_STATUS;
@@ -1907,14 +1912,9 @@ int pci_enable_wake(struct pci_dev *dev, pci_power_t state, bool enable)
 {
 	int ret = 0;
 
-	/*
-	 * Don't do the same thing twice in a row for one device, but restore
-	 * PME Enable in case it has been updated by config space restoration.
-	 */
-	if (!!enable == !!dev->wakeup_prepared) {
-		pci_pme_restore(dev);
+	/* Don't do the same thing twice in a row for one device. */
+	if (!!enable == !!dev->wakeup_prepared)
 		return 0;
-	}
 
 	/*
 	 * According to "PCI System Architecture" 4th ed. by Tom Shanley & Don
@@ -4260,6 +4260,41 @@ int pci_reset_function(struct pci_dev *dev)
 EXPORT_SYMBOL_GPL(pci_reset_function);
 
 /**
+ * pci_reset_function_locked - quiesce and reset a PCI device function
+ * @dev: PCI device to reset
+ *
+ * Some devices allow an individual function to be reset without affecting
+ * other functions in the same device.  The PCI device must be responsive
+ * to PCI config space in order to use this function.
+ *
+ * This function does not just reset the PCI portion of a device, but
+ * clears all the state associated with the device.  This function differs
+ * from __pci_reset_function() in that it saves and restores device state
+ * over the reset.  It also differs from pci_reset_function() in that it
+ * requires the PCI device lock to be held.
+ *
+ * Returns 0 if the device function was successfully reset or negative if the
+ * device doesn't support resetting a single function.
+ */
+int pci_reset_function_locked(struct pci_dev *dev)
+{
+	int rc;
+
+	rc = pci_probe_reset_function(dev);
+	if (rc)
+		return rc;
+
+	pci_dev_save_and_disable(dev);
+
+	rc = __pci_reset_function_locked(dev);
+
+	pci_dev_restore(dev);
+
+	return rc;
+}
+EXPORT_SYMBOL_GPL(pci_reset_function_locked);
+
+/**
  * pci_try_reset_function - quiesce and reset a PCI device function
  * @dev: PCI device to reset
  *
diff --git a/drivers/pci/pci.h b/drivers/pci/pci.h
index 03e3d0285aea..22e061738c6f 100644
--- a/drivers/pci/pci.h
+++ b/drivers/pci/pci.h
@@ -71,6 +71,7 @@ void pci_power_up(struct pci_dev *dev);
 void pci_disable_enabled_device(struct pci_dev *dev);
 int pci_finish_runtime_suspend(struct pci_dev *dev);
 int __pci_pme_wakeup(struct pci_dev *dev, void *ign);
+void pci_pme_restore(struct pci_dev *dev);
 bool pci_dev_keep_suspended(struct pci_dev *dev);
 void pci_dev_complete_resume(struct pci_dev *pci_dev);
 void pci_config_pm_runtime_get(struct pci_dev *dev);
diff --git a/drivers/pci/pcie/pme.c b/drivers/pci/pcie/pme.c
index 80e58d25006d..fafdb165dd2e 100644
--- a/drivers/pci/pcie/pme.c
+++ b/drivers/pci/pcie/pme.c
@@ -40,17 +40,11 @@ static int __init pcie_pme_setup(char *str)
 }
 __setup("pcie_pme=", pcie_pme_setup);
 
-enum pme_suspend_level {
-	PME_SUSPEND_NONE = 0,
-	PME_SUSPEND_WAKEUP,
-	PME_SUSPEND_NOIRQ,
-};
-
 struct pcie_pme_service_data {
 	spinlock_t lock;
 	struct pcie_device *srv;
 	struct work_struct work;
-	enum pme_suspend_level suspend_level;
+	bool noirq; /* If set, keep the PME interrupt disabled. */
 };
 
 /**
@@ -228,7 +222,7 @@ static void pcie_pme_work_fn(struct work_struct *work)
 	spin_lock_irq(&data->lock);
 
 	for (;;) {
-		if (data->suspend_level != PME_SUSPEND_NONE)
+		if (data->noirq)
 			break;
 
 		pcie_capability_read_dword(port, PCI_EXP_RTSTA, &rtsta);
@@ -255,7 +249,7 @@ static void pcie_pme_work_fn(struct work_struct *work)
 		spin_lock_irq(&data->lock);
 	}
 
-	if (data->suspend_level == PME_SUSPEND_NONE)
+	if (!data->noirq)
 		pcie_pme_interrupt_enable(port, true);
 
 	spin_unlock_irq(&data->lock);
@@ -378,7 +372,7 @@ static int pcie_pme_suspend(struct pcie_device *srv)
 {
 	struct pcie_pme_service_data *data = get_service_data(srv);
 	struct pci_dev *port = srv->port;
-	bool wakeup, wake_irq_enabled = false;
+	bool wakeup;
 	int ret;
 
 	if (device_may_wakeup(&port->dev)) {
@@ -388,19 +382,16 @@ static int pcie_pme_suspend(struct pcie_device *srv)
 		wakeup = pcie_pme_check_wakeup(port->subordinate);
 		up_read(&pci_bus_sem);
 	}
-	spin_lock_irq(&data->lock);
 	if (wakeup) {
 		ret = enable_irq_wake(srv->irq);
-		if (ret == 0) {
-			data->suspend_level = PME_SUSPEND_WAKEUP;
-			wake_irq_enabled = true;
-		}
-	}
-	if (!wake_irq_enabled) {
-		pcie_pme_interrupt_enable(port, false);
-		pcie_clear_root_pme_status(port);
-		data->suspend_level = PME_SUSPEND_NOIRQ;
+		if (!ret)
+			return 0;
 	}
+
+	spin_lock_irq(&data->lock);
+	pcie_pme_interrupt_enable(port, false);
+	pcie_clear_root_pme_status(port);
+	data->noirq = true;
 	spin_unlock_irq(&data->lock);
 
 	synchronize_irq(srv->irq);
@@ -417,15 +408,15 @@ static int pcie_pme_resume(struct pcie_device *srv)
 	struct pcie_pme_service_data *data = get_service_data(srv);
 
 	spin_lock_irq(&data->lock);
-	if (data->suspend_level == PME_SUSPEND_NOIRQ) {
+	if (data->noirq) {
 		struct pci_dev *port = srv->port;
 
 		pcie_clear_root_pme_status(port);
 		pcie_pme_interrupt_enable(port, true);
+		data->noirq = false;
 	} else {
 		disable_irq_wake(srv->irq);
 	}
-	data->suspend_level = PME_SUSPEND_NONE;
 	spin_unlock_irq(&data->lock);
 
 	return 0;
diff --git a/drivers/pci/probe.c b/drivers/pci/probe.c
index c31310db0404..e6a917b4acd3 100644
--- a/drivers/pci/probe.c
+++ b/drivers/pci/probe.c
@@ -1762,6 +1762,48 @@ static void pci_configure_extended_tags(struct pci_dev *dev)
 					 PCI_EXP_DEVCTL_EXT_TAG);
 }
 
+/**
+ * pcie_relaxed_ordering_enabled - Probe for PCIe relaxed ordering enable
+ * @dev: PCI device to query
+ *
+ * Returns true if the device has enabled relaxed ordering attribute.
+ */
+bool pcie_relaxed_ordering_enabled(struct pci_dev *dev)
+{
+	u16 v;
+
+	pcie_capability_read_word(dev, PCI_EXP_DEVCTL, &v);
+
+	return !!(v & PCI_EXP_DEVCTL_RELAX_EN);
+}
+EXPORT_SYMBOL(pcie_relaxed_ordering_enabled);
+
+static void pci_configure_relaxed_ordering(struct pci_dev *dev)
+{
+	struct pci_dev *root;
+
+	/* PCI_EXP_DEVICE_RELAX_EN is RsvdP in VFs */
+	if (dev->is_virtfn)
+		return;
+
+	if (!pcie_relaxed_ordering_enabled(dev))
+		return;
+
+	/*
+	 * For now, we only deal with Relaxed Ordering issues with Root
+	 * Ports. Peer-to-Peer DMA is another can of worms.
+	 */
+	root = pci_find_pcie_root_port(dev);
+	if (!root)
+		return;
+
+	if (root->dev_flags & PCI_DEV_FLAGS_NO_RELAXED_ORDERING) {
+		pcie_capability_clear_word(dev, PCI_EXP_DEVCTL,
+					   PCI_EXP_DEVCTL_RELAX_EN);
+		dev_info(&dev->dev, "Disable Relaxed Ordering because the Root Port didn't support it\n");
+	}
+}
+
 static void pci_configure_device(struct pci_dev *dev)
 {
 	struct hotplug_params hpp;
@@ -1769,6 +1811,7 @@ static void pci_configure_device(struct pci_dev *dev)
 
 	pci_configure_mps(dev);
 	pci_configure_extended_tags(dev);
+	pci_configure_relaxed_ordering(dev);
 
 	memset(&hpp, 0, sizeof(hpp));
 	ret = pci_get_hp_params(dev, &hpp);
diff --git a/drivers/pci/quirks.c b/drivers/pci/quirks.c
index 6967c6b4cf6b..140760403f36 100644
--- a/drivers/pci/quirks.c
+++ b/drivers/pci/quirks.c
@@ -4016,6 +4016,95 @@ DECLARE_PCI_FIXUP_CLASS_EARLY(0x1797, 0x6869, PCI_CLASS_NOT_DEFINED, 8,
 			      quirk_tw686x_class);
 
 /*
+ * Some devices have problems with Transaction Layer Packets with the Relaxed
+ * Ordering Attribute set.  Such devices should mark themselves and other
+ * Device Drivers should check before sending TLPs with RO set.
+ */
+static void quirk_relaxedordering_disable(struct pci_dev *dev)
+{
+	dev->dev_flags |= PCI_DEV_FLAGS_NO_RELAXED_ORDERING;
+	dev_info(&dev->dev, "Disable Relaxed Ordering Attributes to avoid PCIe Completion erratum\n");
+}
+
+/*
+ * Intel Xeon processors based on Broadwell/Haswell microarchitecture Root
+ * Complex has a Flow Control Credit issue which can cause performance
+ * problems with Upstream Transaction Layer Packets with Relaxed Ordering set.
+ */
+DECLARE_PCI_FIXUP_CLASS_EARLY(PCI_VENDOR_ID_INTEL, 0x6f01, PCI_CLASS_NOT_DEFINED, 8,
+			      quirk_relaxedordering_disable);
+DECLARE_PCI_FIXUP_CLASS_EARLY(PCI_VENDOR_ID_INTEL, 0x6f02, PCI_CLASS_NOT_DEFINED, 8,
+			      quirk_relaxedordering_disable);
+DECLARE_PCI_FIXUP_CLASS_EARLY(PCI_VENDOR_ID_INTEL, 0x6f03, PCI_CLASS_NOT_DEFINED, 8,
+			      quirk_relaxedordering_disable);
+DECLARE_PCI_FIXUP_CLASS_EARLY(PCI_VENDOR_ID_INTEL, 0x6f04, PCI_CLASS_NOT_DEFINED, 8,
+			      quirk_relaxedordering_disable);
+DECLARE_PCI_FIXUP_CLASS_EARLY(PCI_VENDOR_ID_INTEL, 0x6f05, PCI_CLASS_NOT_DEFINED, 8,
+			      quirk_relaxedordering_disable);
+DECLARE_PCI_FIXUP_CLASS_EARLY(PCI_VENDOR_ID_INTEL, 0x6f06, PCI_CLASS_NOT_DEFINED, 8,
+			      quirk_relaxedordering_disable);
+DECLARE_PCI_FIXUP_CLASS_EARLY(PCI_VENDOR_ID_INTEL, 0x6f07, PCI_CLASS_NOT_DEFINED, 8,
+			      quirk_relaxedordering_disable);
+DECLARE_PCI_FIXUP_CLASS_EARLY(PCI_VENDOR_ID_INTEL, 0x6f08, PCI_CLASS_NOT_DEFINED, 8,
+			      quirk_relaxedordering_disable);
+DECLARE_PCI_FIXUP_CLASS_EARLY(PCI_VENDOR_ID_INTEL, 0x6f09, PCI_CLASS_NOT_DEFINED, 8,
+			      quirk_relaxedordering_disable);
+DECLARE_PCI_FIXUP_CLASS_EARLY(PCI_VENDOR_ID_INTEL, 0x6f0a, PCI_CLASS_NOT_DEFINED, 8,
+			      quirk_relaxedordering_disable);
+DECLARE_PCI_FIXUP_CLASS_EARLY(PCI_VENDOR_ID_INTEL, 0x6f0b, PCI_CLASS_NOT_DEFINED, 8,
+			      quirk_relaxedordering_disable);
+DECLARE_PCI_FIXUP_CLASS_EARLY(PCI_VENDOR_ID_INTEL, 0x6f0c, PCI_CLASS_NOT_DEFINED, 8,
+			      quirk_relaxedordering_disable);
+DECLARE_PCI_FIXUP_CLASS_EARLY(PCI_VENDOR_ID_INTEL, 0x6f0d, PCI_CLASS_NOT_DEFINED, 8,
+			      quirk_relaxedordering_disable);
+DECLARE_PCI_FIXUP_CLASS_EARLY(PCI_VENDOR_ID_INTEL, 0x6f0e, PCI_CLASS_NOT_DEFINED, 8,
+			      quirk_relaxedordering_disable);
+DECLARE_PCI_FIXUP_CLASS_EARLY(PCI_VENDOR_ID_INTEL, 0x2f01, PCI_CLASS_NOT_DEFINED, 8,
+			      quirk_relaxedordering_disable);
+DECLARE_PCI_FIXUP_CLASS_EARLY(PCI_VENDOR_ID_INTEL, 0x2f02, PCI_CLASS_NOT_DEFINED, 8,
+			      quirk_relaxedordering_disable);
+DECLARE_PCI_FIXUP_CLASS_EARLY(PCI_VENDOR_ID_INTEL, 0x2f03, PCI_CLASS_NOT_DEFINED, 8,
+			      quirk_relaxedordering_disable);
+DECLARE_PCI_FIXUP_CLASS_EARLY(PCI_VENDOR_ID_INTEL, 0x2f04, PCI_CLASS_NOT_DEFINED, 8,
+			      quirk_relaxedordering_disable);
+DECLARE_PCI_FIXUP_CLASS_EARLY(PCI_VENDOR_ID_INTEL, 0x2f05, PCI_CLASS_NOT_DEFINED, 8,
+			      quirk_relaxedordering_disable);
+DECLARE_PCI_FIXUP_CLASS_EARLY(PCI_VENDOR_ID_INTEL, 0x2f06, PCI_CLASS_NOT_DEFINED, 8,
+			      quirk_relaxedordering_disable);
+DECLARE_PCI_FIXUP_CLASS_EARLY(PCI_VENDOR_ID_INTEL, 0x2f07, PCI_CLASS_NOT_DEFINED, 8,
+			      quirk_relaxedordering_disable);
+DECLARE_PCI_FIXUP_CLASS_EARLY(PCI_VENDOR_ID_INTEL, 0x2f08, PCI_CLASS_NOT_DEFINED, 8,
+			      quirk_relaxedordering_disable);
+DECLARE_PCI_FIXUP_CLASS_EARLY(PCI_VENDOR_ID_INTEL, 0x2f09, PCI_CLASS_NOT_DEFINED, 8,
+			      quirk_relaxedordering_disable);
+DECLARE_PCI_FIXUP_CLASS_EARLY(PCI_VENDOR_ID_INTEL, 0x2f0a, PCI_CLASS_NOT_DEFINED, 8,
+			      quirk_relaxedordering_disable);
+DECLARE_PCI_FIXUP_CLASS_EARLY(PCI_VENDOR_ID_INTEL, 0x2f0b, PCI_CLASS_NOT_DEFINED, 8,
+			      quirk_relaxedordering_disable);
+DECLARE_PCI_FIXUP_CLASS_EARLY(PCI_VENDOR_ID_INTEL, 0x2f0c, PCI_CLASS_NOT_DEFINED, 8,
+			      quirk_relaxedordering_disable);
+DECLARE_PCI_FIXUP_CLASS_EARLY(PCI_VENDOR_ID_INTEL, 0x2f0d, PCI_CLASS_NOT_DEFINED, 8,
+			      quirk_relaxedordering_disable);
+DECLARE_PCI_FIXUP_CLASS_EARLY(PCI_VENDOR_ID_INTEL, 0x2f0e, PCI_CLASS_NOT_DEFINED, 8,
+			      quirk_relaxedordering_disable);
+
+/*
+ * The AMD ARM A1100 (AKA "SEATTLE") SoC has a bug in its PCIe Root Complex
+ * where Upstream Transaction Layer Packets with the Relaxed Ordering
+ * Attribute clear are allowed to bypass earlier TLPs with Relaxed Ordering
+ * set.  This is a violation of the PCIe 3.0 Transaction Ordering Rules
+ * outlined in Section 2.4.1 (PCI Express(r) Base Specification Revision 3.0
+ * November 10, 2010).  As a result, on this platform we can't use Relaxed
+ * Ordering for Upstream TLPs.
+ */
+DECLARE_PCI_FIXUP_CLASS_EARLY(PCI_VENDOR_ID_AMD, 0x1a00, PCI_CLASS_NOT_DEFINED, 8,
+			      quirk_relaxedordering_disable);
+DECLARE_PCI_FIXUP_CLASS_EARLY(PCI_VENDOR_ID_AMD, 0x1a01, PCI_CLASS_NOT_DEFINED, 8,
+			      quirk_relaxedordering_disable);
+DECLARE_PCI_FIXUP_CLASS_EARLY(PCI_VENDOR_ID_AMD, 0x1a02, PCI_CLASS_NOT_DEFINED, 8,
+			      quirk_relaxedordering_disable);
+
+/*
  * Per PCIe r3.0, sec 2.2.9, "Completion headers must supply the same
  * values for the Attribute as were supplied in the header of the
  * corresponding Request, except as explicitly allowed when IDO is used."
diff --git a/drivers/perf/arm_pmu.c b/drivers/perf/arm_pmu.c
index dc459eb1246b..1c5e0f333779 100644
--- a/drivers/perf/arm_pmu.c
+++ b/drivers/perf/arm_pmu.c
@@ -569,22 +569,41 @@ int armpmu_request_irq(struct arm_pmu *armpmu, int cpu)
 		if (irq != other_irq) {
 			pr_warn("mismatched PPIs detected.\n");
 			err = -EINVAL;
+			goto err_out;
 		}
 	} else {
-		err = request_irq(irq, handler,
-				  IRQF_NOBALANCING | IRQF_NO_THREAD, "arm-pmu",
+		struct arm_pmu_platdata *platdata = armpmu_get_platdata(armpmu);
+		unsigned long irq_flags;
+
+		err = irq_force_affinity(irq, cpumask_of(cpu));
+
+		if (err && num_possible_cpus() > 1) {
+			pr_warn("unable to set irq affinity (irq=%d, cpu=%u)\n",
+				irq, cpu);
+			goto err_out;
+		}
+
+		if (platdata && platdata->irq_flags) {
+			irq_flags = platdata->irq_flags;
+		} else {
+			irq_flags = IRQF_PERCPU |
+				    IRQF_NOBALANCING |
+				    IRQF_NO_THREAD;
+		}
+
+		err = request_irq(irq, handler, irq_flags, "arm-pmu",
 				  per_cpu_ptr(&hw_events->percpu_pmu, cpu));
 	}
 
-	if (err) {
-		pr_err("unable to request IRQ%d for ARM PMU counters\n",
-			irq);
-		return err;
-	}
+	if (err)
+		goto err_out;
 
 	cpumask_set_cpu(cpu, &armpmu->active_irqs);
-
 	return 0;
+
+err_out:
+	pr_err("unable to request IRQ%d for ARM PMU counters\n", irq);
+	return err;
 }
 
 int armpmu_request_irqs(struct arm_pmu *armpmu)
@@ -628,12 +647,6 @@ static int arm_perf_starting_cpu(unsigned int cpu, struct hlist_node *node)
 			enable_percpu_irq(irq, IRQ_TYPE_NONE);
 			return 0;
 		}
-
-		if (irq_force_affinity(irq, cpumask_of(cpu)) &&
-		    num_possible_cpus() > 1) {
-			pr_warn("unable to set irq affinity (irq=%d, cpu=%u)\n",
-				irq, cpu);
-		}
 	}
 
 	return 0;
diff --git a/drivers/perf/arm_pmu_platform.c b/drivers/perf/arm_pmu_platform.c
index 69255f53057a..4eafa7a42e52 100644
--- a/drivers/perf/arm_pmu_platform.c
+++ b/drivers/perf/arm_pmu_platform.c
@@ -131,8 +131,8 @@ static int pmu_parse_irqs(struct arm_pmu *pmu)
 	}
 
 	if (!pmu_has_irq_affinity(pdev->dev.of_node)) {
-		pr_warn("no interrupt-affinity property for %s, guessing.\n",
-			of_node_full_name(pdev->dev.of_node));
+		pr_warn("no interrupt-affinity property for %pOF, guessing.\n",
+			pdev->dev.of_node);
 	}
 
 	/*
@@ -211,7 +211,7 @@ int arm_pmu_device_probe(struct platform_device *pdev,
 	}
 
 	if (ret) {
-		pr_info("%s: failed to probe PMU!\n", of_node_full_name(node));
+		pr_info("%pOF: failed to probe PMU!\n", node);
 		goto out_free;
 	}
 
@@ -228,8 +228,7 @@ int arm_pmu_device_probe(struct platform_device *pdev,
 out_free_irqs:
 	armpmu_free_irqs(pmu);
 out_free:
-	pr_info("%s: failed to register PMU devices!\n",
-		of_node_full_name(node));
+	pr_info("%pOF: failed to register PMU devices!\n", node);
 	armpmu_free(pmu);
 	return ret;
 }
diff --git a/drivers/perf/qcom_l2_pmu.c b/drivers/perf/qcom_l2_pmu.c
index c259848228b4..b242cce10468 100644
--- a/drivers/perf/qcom_l2_pmu.c
+++ b/drivers/perf/qcom_l2_pmu.c
@@ -546,6 +546,7 @@ static int l2_cache_event_init(struct perf_event *event)
 	}
 
 	if ((event != event->group_leader) &&
+	    !is_software_event(event->group_leader) &&
 	    (L2_EVT_GROUP(event->group_leader->attr.config) ==
 	     L2_EVT_GROUP(event->attr.config))) {
 		dev_dbg_ratelimited(&l2cache_pmu->pdev->dev,
@@ -558,6 +559,7 @@ static int l2_cache_event_init(struct perf_event *event)
 	list_for_each_entry(sibling, &event->group_leader->sibling_list,
 			    group_entry) {
 		if ((sibling != event) &&
+		    !is_software_event(sibling) &&
 		    (L2_EVT_GROUP(sibling->attr.config) ==
 		     L2_EVT_GROUP(event->attr.config))) {
 			dev_dbg_ratelimited(&l2cache_pmu->pdev->dev,
diff --git a/drivers/phy/broadcom/Kconfig b/drivers/phy/broadcom/Kconfig
index 37371b89b14f..64fc59c3ae6d 100644
--- a/drivers/phy/broadcom/Kconfig
+++ b/drivers/phy/broadcom/Kconfig
@@ -30,8 +30,8 @@ config PHY_BCM_NS_USB3
 	tristate "Broadcom Northstar USB 3.0 PHY Driver"
 	depends on ARCH_BCM_IPROC || COMPILE_TEST
 	depends on HAS_IOMEM && OF
+	depends on MDIO_BUS
 	select GENERIC_PHY
-	select MDIO_DEVICE
 	help
 	  Enable this to support Broadcom USB 3.0 PHY connected to the USB
 	  controller on Northstar family.
diff --git a/drivers/pinctrl/intel/pinctrl-cherryview.c b/drivers/pinctrl/intel/pinctrl-cherryview.c
index 20f1b4493994..04e929fd0ffe 100644
--- a/drivers/pinctrl/intel/pinctrl-cherryview.c
+++ b/drivers/pinctrl/intel/pinctrl-cherryview.c
@@ -1548,6 +1548,13 @@ static const struct dmi_system_id chv_no_valid_mask[] = {
 		},
 	},
 	{
+		.ident = "HP Chromebook 11 G5 (Setzer)",
+		.matches = {
+			DMI_MATCH(DMI_SYS_VENDOR, "HP"),
+			DMI_MATCH(DMI_PRODUCT_NAME, "Setzer"),
+		},
+	},
+	{
 		.ident = "Acer Chromebook R11 (Cyan)",
 		.matches = {
 			DMI_MATCH(DMI_SYS_VENDOR, "GOOGLE"),
diff --git a/drivers/pinctrl/intel/pinctrl-merrifield.c b/drivers/pinctrl/intel/pinctrl-merrifield.c
index 4d4ef42a39b5..86c4b3fab7b0 100644
--- a/drivers/pinctrl/intel/pinctrl-merrifield.c
+++ b/drivers/pinctrl/intel/pinctrl-merrifield.c
@@ -343,9 +343,9 @@ static const struct pinctrl_pin_desc mrfld_pins[] = {
 
 static const unsigned int mrfld_sdio_pins[] = { 50, 51, 52, 53, 54, 55, 56 };
 static const unsigned int mrfld_spi5_pins[] = { 90, 91, 92, 93, 94, 95, 96 };
-static const unsigned int mrfld_uart0_pins[] = { 124, 125, 126, 127 };
-static const unsigned int mrfld_uart1_pins[] = { 128, 129, 130, 131 };
-static const unsigned int mrfld_uart2_pins[] = { 132, 133, 134, 135 };
+static const unsigned int mrfld_uart0_pins[] = { 115, 116, 117, 118 };
+static const unsigned int mrfld_uart1_pins[] = { 119, 120, 121, 122 };
+static const unsigned int mrfld_uart2_pins[] = { 123, 124, 125, 126 };
 static const unsigned int mrfld_pwm0_pins[] = { 144 };
 static const unsigned int mrfld_pwm1_pins[] = { 145 };
 static const unsigned int mrfld_pwm2_pins[] = { 132 };
diff --git a/drivers/pinctrl/mvebu/pinctrl-armada-37xx.c b/drivers/pinctrl/mvebu/pinctrl-armada-37xx.c
index f024e25787fc..0c6d7812d6fd 100644
--- a/drivers/pinctrl/mvebu/pinctrl-armada-37xx.c
+++ b/drivers/pinctrl/mvebu/pinctrl-armada-37xx.c
@@ -37,7 +37,7 @@
 #define IRQ_STATUS	0x10
 #define IRQ_WKUP	0x18
 
-#define NB_FUNCS 2
+#define NB_FUNCS 3
 #define GPIO_PER_REG	32
 
 /**
@@ -126,6 +126,16 @@ struct armada_37xx_pinctrl {
 		.funcs = {_func1, "gpio"}	\
 	}
 
+#define PIN_GRP_GPIO_3(_name, _start, _nr, _mask, _v1, _v2, _v3, _f1, _f2) \
+	{					\
+		.name = _name,			\
+		.start_pin = _start,		\
+		.npins = _nr,			\
+		.reg_mask = _mask,		\
+		.val = {_v1, _v2, _v3},	\
+		.funcs = {_f1, _f2, "gpio"}	\
+	}
+
 #define PIN_GRP_EXTRA(_name, _start, _nr, _mask, _v1, _v2, _start2, _nr2, \
 		      _f1, _f2)				\
 	{						\
@@ -171,12 +181,13 @@ static struct armada_37xx_pin_group armada_37xx_sb_groups[] = {
 	PIN_GRP_GPIO("usb32_drvvbus0", 0, 1, BIT(0), "drvbus"),
 	PIN_GRP_GPIO("usb2_drvvbus1", 1, 1, BIT(1), "drvbus"),
 	PIN_GRP_GPIO("sdio_sb", 24, 6, BIT(2), "sdio"),
-	PIN_GRP_EXTRA("rgmii", 6, 12, BIT(3), 0, BIT(3), 23, 1, "mii", "gpio"),
+	PIN_GRP_GPIO("rgmii", 6, 12, BIT(3), "mii"),
 	PIN_GRP_GPIO("pcie1", 3, 2, BIT(4), "pcie"),
 	PIN_GRP_GPIO("ptp", 20, 3, BIT(5), "ptp"),
 	PIN_GRP("ptp_clk", 21, 1, BIT(6), "ptp", "mii"),
 	PIN_GRP("ptp_trig", 22, 1, BIT(7), "ptp", "mii"),
-	PIN_GRP("mii_col", 23, 1, BIT(8), "mii", "mii_err"),
+	PIN_GRP_GPIO_3("mii_col", 23, 1, BIT(8) | BIT(14), 0, BIT(8), BIT(14),
+		       "mii", "mii_err"),
 };
 
 const struct armada_37xx_pin_data armada_37xx_pin_nb = {
@@ -187,7 +198,7 @@ const struct armada_37xx_pin_data armada_37xx_pin_nb = {
 };
 
 const struct armada_37xx_pin_data armada_37xx_pin_sb = {
-	.nr_pins = 29,
+	.nr_pins = 30,
 	.name = "GPIO2",
 	.groups = armada_37xx_sb_groups,
 	.ngroups = ARRAY_SIZE(armada_37xx_sb_groups),
@@ -208,7 +219,7 @@ static int armada_37xx_get_func_reg(struct armada_37xx_pin_group *grp,
 {
 	int f;
 
-	for (f = 0; f < NB_FUNCS; f++)
+	for (f = 0; (f < NB_FUNCS) && grp->funcs[f]; f++)
 		if (!strcmp(grp->funcs[f], func))
 			return f;
 
@@ -795,7 +806,7 @@ static int armada_37xx_fill_group(struct armada_37xx_pinctrl *info)
 		for (j = 0; j < grp->extra_npins; j++)
 			grp->pins[i+j] = grp->extra_pin + j;
 
-		for (f = 0; f < NB_FUNCS; f++) {
+		for (f = 0; (f < NB_FUNCS) && grp->funcs[f]; f++) {
 			int ret;
 			/* check for unique functions and count groups */
 			ret = armada_37xx_add_function(info->funcs, &funcsize,
@@ -847,7 +858,7 @@ static int armada_37xx_fill_func(struct armada_37xx_pinctrl *info)
 			struct armada_37xx_pin_group *gp = &info->groups[g];
 			int f;
 
-			for (f = 0; f < NB_FUNCS; f++) {
+			for (f = 0; (f < NB_FUNCS) && gp->funcs[f]; f++) {
 				if (strcmp(gp->funcs[f], name) == 0) {
 					*groups = gp->name;
 					groups++;
diff --git a/drivers/pinctrl/stm32/Kconfig b/drivers/pinctrl/stm32/Kconfig
index 3b8026fca057..7e1fe39a56a5 100644
--- a/drivers/pinctrl/stm32/Kconfig
+++ b/drivers/pinctrl/stm32/Kconfig
@@ -6,29 +6,30 @@ config PINCTRL_STM32
 	select PINMUX
 	select GENERIC_PINCONF
 	select GPIOLIB
+	select IRQ_DOMAIN_HIERARCHY
 	select MFD_SYSCON
 
 config PINCTRL_STM32F429
 	bool "STMicroelectronics STM32F429 pin control" if COMPILE_TEST && !MACH_STM32F429
-	depends on OF && IRQ_DOMAIN_HIERARCHY
+	depends on OF
 	default MACH_STM32F429
 	select PINCTRL_STM32
 
 config PINCTRL_STM32F469
 	bool "STMicroelectronics STM32F469 pin control" if COMPILE_TEST && !MACH_STM32F469
-	depends on OF && IRQ_DOMAIN_HIERARCHY
+	depends on OF
 	default MACH_STM32F469
 	select PINCTRL_STM32
 
 config PINCTRL_STM32F746
 	bool "STMicroelectronics STM32F746 pin control" if COMPILE_TEST && !MACH_STM32F746
-	depends on OF && IRQ_DOMAIN_HIERARCHY
+	depends on OF
 	default MACH_STM32F746
 	select PINCTRL_STM32
 
 config PINCTRL_STM32H743
 	bool "STMicroelectronics STM32H743 pin control" if COMPILE_TEST && !MACH_STM32H743
-	depends on OF && IRQ_DOMAIN_HIERARCHY
+	depends on OF
 	default MACH_STM32H743
 	select PINCTRL_STM32
 endif
diff --git a/drivers/pinctrl/sunxi/pinctrl-sun4i-a10.c b/drivers/pinctrl/sunxi/pinctrl-sun4i-a10.c
index 159580c04b14..47a392bc73c8 100644
--- a/drivers/pinctrl/sunxi/pinctrl-sun4i-a10.c
+++ b/drivers/pinctrl/sunxi/pinctrl-sun4i-a10.c
@@ -918,6 +918,7 @@ static const struct sunxi_desc_pin sun4i_a10_pins[] = {
 		  SUNXI_FUNCTION_VARIANT(0x3, "emac",	/* ETXD1 */
 					 PINCTRL_SUN7I_A20),
 		  SUNXI_FUNCTION(0x4, "keypad"),	/* IN6 */
+		  SUNXI_FUNCTION(0x5, "sim"),		/* DET */
 		  SUNXI_FUNCTION_IRQ(0x6, 16),		/* EINT16 */
 		  SUNXI_FUNCTION(0x7, "csi1")),		/* D16 */
 	SUNXI_PIN(SUNXI_PINCTRL_PIN(H, 17),
diff --git a/drivers/pinctrl/uniphier/pinctrl-uniphier-pro4.c b/drivers/pinctrl/uniphier/pinctrl-uniphier-pro4.c
index a433a306a2d0..c75e094b2d90 100644
--- a/drivers/pinctrl/uniphier/pinctrl-uniphier-pro4.c
+++ b/drivers/pinctrl/uniphier/pinctrl-uniphier-pro4.c
@@ -1084,7 +1084,7 @@ static const unsigned usb1_pins[] = {182, 183};
 static const int usb1_muxvals[] = {0, 0};
 static const unsigned usb2_pins[] = {184, 185};
 static const int usb2_muxvals[] = {0, 0};
-static const unsigned usb3_pins[] = {186, 187};
+static const unsigned usb3_pins[] = {187, 188};
 static const int usb3_muxvals[] = {0, 0};
 static const unsigned port_range0_pins[] = {
 	300, 301, 302, 303, 304, 305, 306, 307,		/* PORT0x */
diff --git a/drivers/pinctrl/zte/pinctrl-zx.c b/drivers/pinctrl/zte/pinctrl-zx.c
index 787e3967bd5c..f828ee340a98 100644
--- a/drivers/pinctrl/zte/pinctrl-zx.c
+++ b/drivers/pinctrl/zte/pinctrl-zx.c
@@ -64,10 +64,8 @@ static int zx_set_mux(struct pinctrl_dev *pctldev, unsigned int func_selector,
 	struct zx_pinctrl_soc_info *info = zpctl->info;
 	const struct pinctrl_pin_desc *pindesc = info->pins + group_selector;
 	struct zx_pin_data *data = pindesc->drv_data;
-	struct zx_mux_desc *mux = data->muxes;
-	u32 mask = (1 << data->width) - 1;
-	u32 offset = data->offset;
-	u32 bitpos = data->bitpos;
+	struct zx_mux_desc *mux;
+	u32 mask, offset, bitpos;
 	struct function_desc *func;
 	unsigned long flags;
 	u32 val, mval;
@@ -76,6 +74,11 @@ static int zx_set_mux(struct pinctrl_dev *pctldev, unsigned int func_selector,
 	if (!data)
 		return -EINVAL;
 
+	mux = data->muxes;
+	mask = (1 << data->width) - 1;
+	offset = data->offset;
+	bitpos = data->bitpos;
+
 	func = pinmux_generic_get_function(pctldev, func_selector);
 	if (!func)
 		return -EINVAL;
diff --git a/drivers/platform/mips/cpu_hwmon.c b/drivers/platform/mips/cpu_hwmon.c
index 4300a558d0f3..322de58eebaf 100644
--- a/drivers/platform/mips/cpu_hwmon.c
+++ b/drivers/platform/mips/cpu_hwmon.c
@@ -17,17 +17,27 @@
  */
 int loongson3_cpu_temp(int cpu)
 {
-	u32 reg;
+	u32 reg, prid_rev;
 
 	reg = LOONGSON_CHIPTEMP(cpu);
-	if ((read_c0_prid() & PRID_REV_MASK) == PRID_REV_LOONGSON3A_R1)
+	prid_rev = read_c0_prid() & PRID_REV_MASK;
+	switch (prid_rev) {
+	case PRID_REV_LOONGSON3A_R1:
 		reg = (reg >> 8) & 0xff;
-	else
+		break;
+	case PRID_REV_LOONGSON3A_R2:
+	case PRID_REV_LOONGSON3B_R1:
+	case PRID_REV_LOONGSON3B_R2:
 		reg = ((reg >> 8) & 0xff) - 100;
-
+		break;
+	case PRID_REV_LOONGSON3A_R3:
+		reg = (reg & 0xffff)*731/0x4000 - 273;
+		break;
+	}
 	return (int)reg * 1000;
 }
 
+static int nr_packages;
 static struct device *cpu_hwmon_dev;
 
 static ssize_t get_hwmon_name(struct device *dev,
@@ -51,88 +61,74 @@ static ssize_t get_hwmon_name(struct device *dev,
 	return sprintf(buf, "cpu-hwmon\n");
 }
 
-static ssize_t get_cpu0_temp(struct device *dev,
-			struct device_attribute *attr, char *buf);
-static ssize_t get_cpu1_temp(struct device *dev,
+static ssize_t get_cpu_temp(struct device *dev,
 			struct device_attribute *attr, char *buf);
-static ssize_t cpu0_temp_label(struct device *dev,
+static ssize_t cpu_temp_label(struct device *dev,
 			struct device_attribute *attr, char *buf);
-static ssize_t cpu1_temp_label(struct device *dev,
-			struct device_attribute *attr, char *buf);
-
-static SENSOR_DEVICE_ATTR(temp1_input, S_IRUGO, get_cpu0_temp, NULL, 1);
-static SENSOR_DEVICE_ATTR(temp1_label, S_IRUGO, cpu0_temp_label, NULL, 1);
-static SENSOR_DEVICE_ATTR(temp2_input, S_IRUGO, get_cpu1_temp, NULL, 2);
-static SENSOR_DEVICE_ATTR(temp2_label, S_IRUGO, cpu1_temp_label, NULL, 2);
 
-static const struct attribute *hwmon_cputemp1[] = {
-	&sensor_dev_attr_temp1_input.dev_attr.attr,
-	&sensor_dev_attr_temp1_label.dev_attr.attr,
-	NULL
-};
-
-static const struct attribute *hwmon_cputemp2[] = {
-	&sensor_dev_attr_temp2_input.dev_attr.attr,
-	&sensor_dev_attr_temp2_label.dev_attr.attr,
-	NULL
+static SENSOR_DEVICE_ATTR(temp1_input, S_IRUGO, get_cpu_temp, NULL, 1);
+static SENSOR_DEVICE_ATTR(temp1_label, S_IRUGO, cpu_temp_label, NULL, 1);
+static SENSOR_DEVICE_ATTR(temp2_input, S_IRUGO, get_cpu_temp, NULL, 2);
+static SENSOR_DEVICE_ATTR(temp2_label, S_IRUGO, cpu_temp_label, NULL, 2);
+static SENSOR_DEVICE_ATTR(temp3_input, S_IRUGO, get_cpu_temp, NULL, 3);
+static SENSOR_DEVICE_ATTR(temp3_label, S_IRUGO, cpu_temp_label, NULL, 3);
+static SENSOR_DEVICE_ATTR(temp4_input, S_IRUGO, get_cpu_temp, NULL, 4);
+static SENSOR_DEVICE_ATTR(temp4_label, S_IRUGO, cpu_temp_label, NULL, 4);
+
+static const struct attribute *hwmon_cputemp[4][3] = {
+	{
+		&sensor_dev_attr_temp1_input.dev_attr.attr,
+		&sensor_dev_attr_temp1_label.dev_attr.attr,
+		NULL
+	},
+	{
+		&sensor_dev_attr_temp2_input.dev_attr.attr,
+		&sensor_dev_attr_temp2_label.dev_attr.attr,
+		NULL
+	},
+	{
+		&sensor_dev_attr_temp3_input.dev_attr.attr,
+		&sensor_dev_attr_temp3_label.dev_attr.attr,
+		NULL
+	},
+	{
+		&sensor_dev_attr_temp4_input.dev_attr.attr,
+		&sensor_dev_attr_temp4_label.dev_attr.attr,
+		NULL
+	}
 };
 
-static ssize_t cpu0_temp_label(struct device *dev,
-			struct device_attribute *attr, char *buf)
-{
-	return sprintf(buf, "CPU 0 Temperature\n");
-}
-
-static ssize_t cpu1_temp_label(struct device *dev,
+static ssize_t cpu_temp_label(struct device *dev,
 			struct device_attribute *attr, char *buf)
 {
-	return sprintf(buf, "CPU 1 Temperature\n");
+	int id = (to_sensor_dev_attr(attr))->index - 1;
+	return sprintf(buf, "CPU %d Temperature\n", id);
 }
 
-static ssize_t get_cpu0_temp(struct device *dev,
+static ssize_t get_cpu_temp(struct device *dev,
 			struct device_attribute *attr, char *buf)
 {
-	int value = loongson3_cpu_temp(0);
-	return sprintf(buf, "%d\n", value);
-}
-
-static ssize_t get_cpu1_temp(struct device *dev,
-			struct device_attribute *attr, char *buf)
-{
-	int value = loongson3_cpu_temp(1);
+	int id = (to_sensor_dev_attr(attr))->index - 1;
+	int value = loongson3_cpu_temp(id);
 	return sprintf(buf, "%d\n", value);
 }
 
 static int create_sysfs_cputemp_files(struct kobject *kobj)
 {
-	int ret;
-
-	ret = sysfs_create_files(kobj, hwmon_cputemp1);
-	if (ret)
-		goto sysfs_create_temp1_fail;
-
-	if (loongson_sysconf.nr_cpus <= loongson_sysconf.cores_per_package)
-		return 0;
+	int i, ret = 0;
 
-	ret = sysfs_create_files(kobj, hwmon_cputemp2);
-	if (ret)
-		goto sysfs_create_temp2_fail;
+	for (i=0; i<nr_packages; i++)
+		ret = sysfs_create_files(kobj, hwmon_cputemp[i]);
 
-	return 0;
-
-sysfs_create_temp2_fail:
-	sysfs_remove_files(kobj, hwmon_cputemp1);
-
-sysfs_create_temp1_fail:
-	return -1;
+	return ret;
 }
 
 static void remove_sysfs_cputemp_files(struct kobject *kobj)
 {
-	sysfs_remove_files(&cpu_hwmon_dev->kobj, hwmon_cputemp1);
+	int i;
 
-	if (loongson_sysconf.nr_cpus > loongson_sysconf.cores_per_package)
-		sysfs_remove_files(&cpu_hwmon_dev->kobj, hwmon_cputemp2);
+	for (i=0; i<nr_packages; i++)
+		sysfs_remove_files(kobj, hwmon_cputemp[i]);
 }
 
 #define CPU_THERMAL_THRESHOLD 90000
@@ -140,8 +136,15 @@ static struct delayed_work thermal_work;
 
 static void do_thermal_timer(struct work_struct *work)
 {
-	int value = loongson3_cpu_temp(0);
-	if (value <= CPU_THERMAL_THRESHOLD)
+	int i, value, temp_max = 0;
+
+	for (i=0; i<nr_packages; i++) {
+		value = loongson3_cpu_temp(i);
+		if (value > temp_max)
+			temp_max = value;
+	}
+
+	if (temp_max <= CPU_THERMAL_THRESHOLD)
 		schedule_delayed_work(&thermal_work, msecs_to_jiffies(5000));
 	else
 		orderly_poweroff(true);
@@ -160,6 +163,9 @@ static int __init loongson_hwmon_init(void)
 		goto fail_hwmon_device_register;
 	}
 
+	nr_packages = loongson_sysconf.nr_cpus /
+		loongson_sysconf.cores_per_package;
+
 	ret = sysfs_create_group(&cpu_hwmon_dev->kobj,
 				&cpu_hwmon_attribute_group);
 	if (ret) {
diff --git a/drivers/platform/x86/Kconfig b/drivers/platform/x86/Kconfig
index b04860703740..80b87954f6dd 100644
--- a/drivers/platform/x86/Kconfig
+++ b/drivers/platform/x86/Kconfig
@@ -675,6 +675,7 @@ config PEAQ_WMI
 	tristate "PEAQ 2-in-1 WMI hotkey driver"
 	depends on ACPI_WMI
 	depends on INPUT
+	select INPUT_POLLDEV
 	help
 	 Say Y here if you want to support WMI-based hotkeys on PEAQ 2-in-1s.
 
diff --git a/drivers/platform/x86/alienware-wmi.c b/drivers/platform/x86/alienware-wmi.c
index 9866fec78c1c..0831b428c217 100644
--- a/drivers/platform/x86/alienware-wmi.c
+++ b/drivers/platform/x86/alienware-wmi.c
@@ -604,7 +604,7 @@ static struct attribute *hdmi_attrs[] = {
 	NULL,
 };
 
-static struct attribute_group hdmi_attribute_group = {
+static const struct attribute_group hdmi_attribute_group = {
 	.name = "hdmi",
 	.attrs = hdmi_attrs,
 };
@@ -660,7 +660,7 @@ static struct attribute *amplifier_attrs[] = {
 	NULL,
 };
 
-static struct attribute_group amplifier_attribute_group = {
+static const struct attribute_group amplifier_attribute_group = {
 	.name = "amplifier",
 	.attrs = amplifier_attrs,
 };
@@ -741,7 +741,7 @@ static struct attribute *deepsleep_attrs[] = {
 	NULL,
 };
 
-static struct attribute_group deepsleep_attribute_group = {
+static const struct attribute_group deepsleep_attribute_group = {
 	.name = "deepsleep",
 	.attrs = deepsleep_attrs,
 };
diff --git a/drivers/platform/x86/asus-wmi.c b/drivers/platform/x86/asus-wmi.c
index 6c7d86074b38..709e3a67391a 100644
--- a/drivers/platform/x86/asus-wmi.c
+++ b/drivers/platform/x86/asus-wmi.c
@@ -1433,7 +1433,7 @@ static umode_t asus_hwmon_sysfs_is_visible(struct kobject *kobj,
 	return ok ? attr->mode : 0;
 }
 
-static struct attribute_group hwmon_attribute_group = {
+static const struct attribute_group hwmon_attribute_group = {
 	.is_visible = asus_hwmon_sysfs_is_visible,
 	.attrs = hwmon_attributes
 };
@@ -1821,7 +1821,7 @@ static umode_t asus_sysfs_is_visible(struct kobject *kobj,
 	return ok ? attr->mode : 0;
 }
 
-static struct attribute_group platform_attribute_group = {
+static const struct attribute_group platform_attribute_group = {
 	.is_visible = asus_sysfs_is_visible,
 	.attrs = platform_attributes
 };
diff --git a/drivers/platform/x86/compal-laptop.c b/drivers/platform/x86/compal-laptop.c
index e1c2b6d4b24a..a8e4a539e704 100644
--- a/drivers/platform/x86/compal-laptop.c
+++ b/drivers/platform/x86/compal-laptop.c
@@ -718,7 +718,7 @@ static struct attribute *compal_platform_attrs[] = {
 	&dev_attr_wake_up_mouse.attr,
 	NULL
 };
-static struct attribute_group compal_platform_attr_group = {
+static const struct attribute_group compal_platform_attr_group = {
 	.attrs = compal_platform_attrs
 };
 
diff --git a/drivers/platform/x86/dell-wmi.c b/drivers/platform/x86/dell-wmi.c
index f8978464df31..dad8f4afa17c 100644
--- a/drivers/platform/x86/dell-wmi.c
+++ b/drivers/platform/x86/dell-wmi.c
@@ -626,7 +626,7 @@ static void dell_wmi_input_destroy(struct wmi_device *wdev)
  * WMI Interface Version     8       4    <version>
  * WMI buffer length        12       4    4096
  */
-static int __init dell_wmi_check_descriptor_buffer(void)
+static int dell_wmi_check_descriptor_buffer(void)
 {
 	struct acpi_buffer out = { ACPI_ALLOCATE_BUFFER, NULL };
 	union acpi_object *obj;
@@ -717,9 +717,15 @@ static int dell_wmi_events_set_enabled(bool enable)
 
 static int dell_wmi_probe(struct wmi_device *wdev)
 {
+	int err;
+
 	struct dell_wmi_priv *priv = devm_kzalloc(
 		&wdev->dev, sizeof(struct dell_wmi_priv), GFP_KERNEL);
 
+	err = dell_wmi_check_descriptor_buffer();
+	if (err)
+		return err;
+
 	dev_set_drvdata(&wdev->dev, priv);
 
 	return dell_wmi_input_setup(wdev);
@@ -749,10 +755,6 @@ static int __init dell_wmi_init(void)
 {
 	int err;
 
-	err = dell_wmi_check_descriptor_buffer();
-	if (err)
-		return err;
-
 	dmi_check_system(dell_wmi_smbios_list);
 
 	if (wmi_requires_smbios_request) {
diff --git a/drivers/platform/x86/fujitsu-laptop.c b/drivers/platform/x86/fujitsu-laptop.c
index c1a852847d02..85de30f93a9c 100644
--- a/drivers/platform/x86/fujitsu-laptop.c
+++ b/drivers/platform/x86/fujitsu-laptop.c
@@ -317,7 +317,7 @@ static struct attribute *fujitsu_pf_attributes[] = {
 	NULL
 };
 
-static struct attribute_group fujitsu_pf_attribute_group = {
+static const struct attribute_group fujitsu_pf_attribute_group = {
 	.attrs = fujitsu_pf_attributes
 };
 
@@ -695,6 +695,9 @@ static int acpi_fujitsu_laptop_leds_register(struct acpi_device *device)
 	if (call_fext_func(device,
 			   FUNC_LEDS, 0x0, 0x0, 0x0) & LOGOLAMP_POWERON) {
 		led = devm_kzalloc(&device->dev, sizeof(*led), GFP_KERNEL);
+		if (!led)
+			return -ENOMEM;
+
 		led->name = "fujitsu::logolamp";
 		led->brightness_set_blocking = logolamp_set;
 		led->brightness_get = logolamp_get;
@@ -707,6 +710,9 @@ static int acpi_fujitsu_laptop_leds_register(struct acpi_device *device)
 			    FUNC_LEDS, 0x0, 0x0, 0x0) & KEYBOARD_LAMPS) &&
 	    (call_fext_func(device, FUNC_BUTTONS, 0x0, 0x0, 0x0) == 0x0)) {
 		led = devm_kzalloc(&device->dev, sizeof(*led), GFP_KERNEL);
+		if (!led)
+			return -ENOMEM;
+
 		led->name = "fujitsu::kblamps";
 		led->brightness_set_blocking = kblamps_set;
 		led->brightness_get = kblamps_get;
@@ -723,6 +729,9 @@ static int acpi_fujitsu_laptop_leds_register(struct acpi_device *device)
 	 */
 	if (call_fext_func(device, FUNC_BUTTONS, 0x0, 0x0, 0x0) & BIT(24)) {
 		led = devm_kzalloc(&device->dev, sizeof(*led), GFP_KERNEL);
+		if (!led)
+			return -ENOMEM;
+
 		led->name = "fujitsu::radio_led";
 		led->brightness_set_blocking = radio_led_set;
 		led->brightness_get = radio_led_get;
@@ -741,6 +750,9 @@ static int acpi_fujitsu_laptop_leds_register(struct acpi_device *device)
 	    (call_fext_func(device,
 			    FUNC_LEDS, 0x2, ECO_LED, 0x0) != UNSUPPORTED_CMD)) {
 		led = devm_kzalloc(&device->dev, sizeof(*led), GFP_KERNEL);
+		if (!led)
+			return -ENOMEM;
+
 		led->name = "fujitsu::eco_led";
 		led->brightness_set_blocking = eco_led_set;
 		led->brightness_get = eco_led_get;
diff --git a/drivers/platform/x86/ideapad-laptop.c b/drivers/platform/x86/ideapad-laptop.c
index 527e5d9ab9bf..603fc6050971 100644
--- a/drivers/platform/x86/ideapad-laptop.c
+++ b/drivers/platform/x86/ideapad-laptop.c
@@ -909,17 +909,94 @@ static const struct dmi_system_id no_hw_rfkill_list[] = {
 		},
 	},
 	{
+		.ident = "Lenovo V310-14IKB",
+		.matches = {
+			DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
+			DMI_MATCH(DMI_PRODUCT_VERSION, "Lenovo V310-14IKB"),
+		},
+	},
+	{
+		.ident = "Lenovo V310-14ISK",
+		.matches = {
+			DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
+			DMI_MATCH(DMI_PRODUCT_VERSION, "Lenovo V310-14ISK"),
+		},
+	},
+	{
+		.ident = "Lenovo V310-15IKB",
+		.matches = {
+			DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
+			DMI_MATCH(DMI_PRODUCT_VERSION, "Lenovo V310-15IKB"),
+		},
+	},
+	{
 		.ident = "Lenovo V310-15ISK",
 		.matches = {
-		        DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
-		        DMI_MATCH(DMI_PRODUCT_VERSION, "Lenovo V310-15ISK"),
+			DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
+			DMI_MATCH(DMI_PRODUCT_VERSION, "Lenovo V310-15ISK"),
+		},
+	},
+	{
+		.ident = "Lenovo V510-15IKB",
+		.matches = {
+			DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
+			DMI_MATCH(DMI_PRODUCT_VERSION, "Lenovo V510-15IKB"),
+		},
+	},
+	{
+		.ident = "Lenovo ideapad 300-15IBR",
+		.matches = {
+			DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
+			DMI_MATCH(DMI_PRODUCT_VERSION, "Lenovo ideapad 300-15IBR"),
+		},
+	},
+	{
+		.ident = "Lenovo ideapad 300-15IKB",
+		.matches = {
+			DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
+			DMI_MATCH(DMI_PRODUCT_VERSION, "Lenovo ideapad 300-15IKB"),
+		},
+	},
+	{
+		.ident = "Lenovo ideapad 300S-11IBR",
+		.matches = {
+			DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
+			DMI_MATCH(DMI_PRODUCT_VERSION, "Lenovo ideapad 300S-11BR"),
+		},
+	},
+	{
+		.ident = "Lenovo ideapad 310-15ABR",
+		.matches = {
+			DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
+			DMI_MATCH(DMI_PRODUCT_VERSION, "Lenovo ideapad 310-15ABR"),
+		},
+	},
+	{
+		.ident = "Lenovo ideapad 310-15IAP",
+		.matches = {
+			DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
+			DMI_MATCH(DMI_PRODUCT_VERSION, "Lenovo ideapad 310-15IAP"),
 		},
 	},
 	{
 		.ident = "Lenovo ideapad 310-15IKB",
 		.matches = {
-		        DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
-		        DMI_MATCH(DMI_PRODUCT_VERSION, "Lenovo ideapad 310-15IKB"),
+			DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
+			DMI_MATCH(DMI_PRODUCT_VERSION, "Lenovo ideapad 310-15IKB"),
+		},
+	},
+	{
+		.ident = "Lenovo ideapad 310-15ISK",
+		.matches = {
+			DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
+			DMI_MATCH(DMI_PRODUCT_VERSION, "Lenovo ideapad 310-15ISK"),
+		},
+	},
+	{
+		.ident = "Lenovo ideapad Y700-14ISK",
+		.matches = {
+			DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
+			DMI_MATCH(DMI_PRODUCT_VERSION, "Lenovo ideapad Y700-14ISK"),
 		},
 	},
 	{
diff --git a/drivers/platform/x86/intel-vbtn.c b/drivers/platform/x86/intel-vbtn.c
index 61f106377661..480926786cb8 100644
--- a/drivers/platform/x86/intel-vbtn.c
+++ b/drivers/platform/x86/intel-vbtn.c
@@ -36,8 +36,8 @@ static const struct acpi_device_id intel_vbtn_ids[] = {
 
 /* In theory, these are HID usages. */
 static const struct key_entry intel_vbtn_keymap[] = {
-	{ KE_IGNORE, 0xC0, { KEY_POWER } },	/* power key press */
-	{ KE_KEY, 0xC1, { KEY_POWER } },	/* power key release */
+	{ KE_KEY, 0xC0, { KEY_POWER } },	/* power key press */
+	{ KE_IGNORE, 0xC1, { KEY_POWER } },	/* power key release */
 	{ KE_KEY, 0xC4, { KEY_VOLUMEUP } },		/* volume-up key press */
 	{ KE_IGNORE, 0xC5, { KEY_VOLUMEUP } },		/* volume-up key release */
 	{ KE_KEY, 0xC6, { KEY_VOLUMEDOWN } },		/* volume-down key press */
diff --git a/drivers/platform/x86/intel_telemetry_debugfs.c b/drivers/platform/x86/intel_telemetry_debugfs.c
index 4cc2f4ea0a25..cd21df982abd 100644
--- a/drivers/platform/x86/intel_telemetry_debugfs.c
+++ b/drivers/platform/x86/intel_telemetry_debugfs.c
@@ -710,6 +710,24 @@ static const struct file_operations telem_socstate_ops = {
 	.release	= single_release,
 };
 
+static int telem_s0ix_res_get(void *data, u64 *val)
+{
+	u64 s0ix_total_res;
+	int ret;
+
+	ret = intel_pmc_s0ix_counter_read(&s0ix_total_res);
+	if (ret) {
+		pr_err("Failed to read S0ix residency");
+		return ret;
+	}
+
+	*val = s0ix_total_res;
+
+	return 0;
+}
+
+DEFINE_DEBUGFS_ATTRIBUTE(telem_s0ix_fops, telem_s0ix_res_get, NULL, "%llu\n");
+
 static int telem_pss_trc_verb_show(struct seq_file *s, void *unused)
 {
 	u32 verbosity;
@@ -938,7 +956,7 @@ static struct notifier_block pm_notifier = {
 static int __init telemetry_debugfs_init(void)
 {
 	const struct x86_cpu_id *id;
-	int err = -ENOMEM;
+	int err;
 	struct dentry *f;
 
 	/* Only APL supported for now */
@@ -958,11 +976,10 @@ static int __init telemetry_debugfs_init(void)
 
 	register_pm_notifier(&pm_notifier);
 
+	err = -ENOMEM;
 	debugfs_conf->telemetry_dbg_dir = debugfs_create_dir("telemetry", NULL);
-	if (!debugfs_conf->telemetry_dbg_dir) {
-		err = -ENOMEM;
+	if (!debugfs_conf->telemetry_dbg_dir)
 		goto out_pm;
-	}
 
 	f = debugfs_create_file("pss_info", S_IFREG | S_IRUGO,
 				debugfs_conf->telemetry_dbg_dir, NULL,
@@ -988,6 +1005,14 @@ static int __init telemetry_debugfs_init(void)
 		goto out;
 	}
 
+	f = debugfs_create_file("s0ix_residency_usec", S_IFREG | S_IRUGO,
+				debugfs_conf->telemetry_dbg_dir,
+				NULL, &telem_s0ix_fops);
+	if (!f) {
+		pr_err("s0ix_residency_usec debugfs register failed\n");
+		goto out;
+	}
+
 	f = debugfs_create_file("pss_trace_verbosity", S_IFREG | S_IRUGO,
 				debugfs_conf->telemetry_dbg_dir, NULL,
 				&telem_pss_trc_verb_ops);
diff --git a/drivers/platform/x86/panasonic-laptop.c b/drivers/platform/x86/panasonic-laptop.c
index 76b0a58e205b..5c39b3211709 100644
--- a/drivers/platform/x86/panasonic-laptop.c
+++ b/drivers/platform/x86/panasonic-laptop.c
@@ -437,7 +437,7 @@ static struct attribute *pcc_sysfs_entries[] = {
 	NULL,
 };
 
-static struct attribute_group pcc_attr_group = {
+static const struct attribute_group pcc_attr_group = {
 	.name	= NULL,		/* put in device directory */
 	.attrs	= pcc_sysfs_entries,
 };
diff --git a/drivers/platform/x86/peaq-wmi.c b/drivers/platform/x86/peaq-wmi.c
index ca75b4dc437e..77d1f90b0794 100644
--- a/drivers/platform/x86/peaq-wmi.c
+++ b/drivers/platform/x86/peaq-wmi.c
@@ -51,7 +51,7 @@ static void peaq_wmi_poll(struct input_polled_dev *dev)
 		return;
 	}
 
-	if (peaq_ignore_events_counter && --peaq_ignore_events_counter > 0)
+	if (peaq_ignore_events_counter && --peaq_ignore_events_counter >= 0)
 		return;
 
 	if (obj.integer.value) {
diff --git a/drivers/platform/x86/samsung-laptop.c b/drivers/platform/x86/samsung-laptop.c
index 5c4dfe48f03d..0c703feaeb88 100644
--- a/drivers/platform/x86/samsung-laptop.c
+++ b/drivers/platform/x86/samsung-laptop.c
@@ -1232,7 +1232,7 @@ static umode_t samsung_sysfs_is_visible(struct kobject *kobj,
 	return ok ? attr->mode : 0;
 }
 
-static struct attribute_group platform_attribute_group = {
+static const struct attribute_group platform_attribute_group = {
 	.is_visible = samsung_sysfs_is_visible,
 	.attrs = platform_attributes
 };
diff --git a/drivers/platform/x86/silead_dmi.c b/drivers/platform/x86/silead_dmi.c
index 3cd3bdfe51df..1157a7b646d6 100644
--- a/drivers/platform/x86/silead_dmi.c
+++ b/drivers/platform/x86/silead_dmi.c
@@ -122,6 +122,20 @@ static const struct silead_ts_dmi_data pov_mobii_wintab_p800w_data = {
 	.properties	= pov_mobii_wintab_p800w_props,
 };
 
+static const struct property_entry itworks_tw891_props[] = {
+	PROPERTY_ENTRY_U32("touchscreen-size-x", 1600),
+	PROPERTY_ENTRY_U32("touchscreen-size-y", 890),
+	PROPERTY_ENTRY_BOOL("touchscreen-inverted-y"),
+	PROPERTY_ENTRY_BOOL("touchscreen-swapped-x-y"),
+	PROPERTY_ENTRY_STRING("firmware-name", "gsl3670-itworks-tw891.fw"),
+	{ }
+};
+
+static const struct silead_ts_dmi_data itworks_tw891_data = {
+	.acpi_name	= "MSSL1680:00",
+	.properties	= itworks_tw891_props,
+};
+
 static const struct dmi_system_id silead_ts_dmi_table[] = {
 	{
 		/* CUBE iwork8 Air */
@@ -160,6 +174,16 @@ static const struct dmi_system_id silead_ts_dmi_table[] = {
 		},
 	},
 	{
+		/* Ployer Momo7w (same hardware as the Trekstor ST70416-6) */
+		.driver_data = (void *)&surftab_wintron70_st70416_6_data,
+		.matches = {
+			DMI_MATCH(DMI_SYS_VENDOR, "Shenzhen PLOYER"),
+			DMI_MATCH(DMI_PRODUCT_NAME, "MOMO7W"),
+			/* Exact match, different versions need different fw */
+			DMI_MATCH(DMI_BIOS_VERSION, "MOMO.G.WI71C.MABMRBA02"),
+		},
+	},
+	{
 		/* GP-electronic T701 */
 		.driver_data = (void *)&gp_electronic_t701_data,
 		.matches = {
@@ -187,6 +211,14 @@ static const struct dmi_system_id silead_ts_dmi_table[] = {
 			DMI_MATCH(DMI_BIOS_DATE, "08/22/2014"),
 		},
 	},
+	{
+		/* I.T.Works TW891 */
+		.driver_data = (void *)&itworks_tw891_data,
+		.matches = {
+			DMI_MATCH(DMI_SYS_VENDOR, "To be filled by O.E.M."),
+			DMI_MATCH(DMI_PRODUCT_NAME, "TW891"),
+		},
+	},
 	{ },
 };
 
diff --git a/drivers/platform/x86/toshiba_acpi.c b/drivers/platform/x86/toshiba_acpi.c
index 88f9f79a7cf6..bb1dcd7fbdeb 100644
--- a/drivers/platform/x86/toshiba_acpi.c
+++ b/drivers/platform/x86/toshiba_acpi.c
@@ -2419,7 +2419,7 @@ static umode_t toshiba_sysfs_is_visible(struct kobject *kobj,
 	return exists ? attr->mode : 0;
 }
 
-static struct attribute_group toshiba_attr_group = {
+static const struct attribute_group toshiba_attr_group = {
 	.is_visible = toshiba_sysfs_is_visible,
 	.attrs = toshiba_attributes,
 };
diff --git a/drivers/platform/x86/wmi.c b/drivers/platform/x86/wmi.c
index 1a764e311e11..e32ba575e8d9 100644
--- a/drivers/platform/x86/wmi.c
+++ b/drivers/platform/x86/wmi.c
@@ -1252,12 +1252,12 @@ static int __init acpi_wmi_init(void)
 
 	return 0;
 
-err_unreg_class:
-	class_unregister(&wmi_bus_class);
-
 err_unreg_bus:
 	bus_unregister(&wmi_bus_type);
 
+err_unreg_class:
+	class_unregister(&wmi_bus_class);
+
 	return error;
 }
 
diff --git a/drivers/power/supply/twl4030_charger.c b/drivers/power/supply/twl4030_charger.c
index 3de802f169a1..9dff1b4b85fc 100644
--- a/drivers/power/supply/twl4030_charger.c
+++ b/drivers/power/supply/twl4030_charger.c
@@ -980,10 +980,37 @@ static int twl4030_bci_probe(struct platform_device *pdev)
 
 	platform_set_drvdata(pdev, bci);
 
+	INIT_WORK(&bci->work, twl4030_bci_usb_work);
+	INIT_DELAYED_WORK(&bci->current_worker, twl4030_current_worker);
+
 	bci->channel_vac = devm_iio_channel_get(&pdev->dev, "vac");
 	if (IS_ERR(bci->channel_vac)) {
+		ret = PTR_ERR(bci->channel_vac);
+		if (ret == -EPROBE_DEFER)
+			return ret;	/* iio not ready */
+		dev_warn(&pdev->dev, "could not request vac iio channel (%d)",
+			ret);
 		bci->channel_vac = NULL;
-		dev_warn(&pdev->dev, "could not request vac iio channel");
+	}
+
+	if (bci->dev->of_node) {
+		struct device_node *phynode;
+
+		phynode = of_find_compatible_node(bci->dev->of_node->parent,
+						  NULL, "ti,twl4030-usb");
+		if (phynode) {
+			bci->usb_nb.notifier_call = twl4030_bci_usb_ncb;
+			bci->transceiver = devm_usb_get_phy_by_node(
+				bci->dev, phynode, &bci->usb_nb);
+			if (IS_ERR(bci->transceiver)) {
+				ret = PTR_ERR(bci->transceiver);
+				if (ret == -EPROBE_DEFER)
+					return ret;	/* phy not ready */
+				dev_warn(&pdev->dev, "could not request transceiver (%d)",
+					ret);
+				bci->transceiver = NULL;
+			}
+		}
 	}
 
 	bci->ac = devm_power_supply_register(&pdev->dev, &twl4030_bci_ac_desc,
@@ -1019,20 +1046,6 @@ static int twl4030_bci_probe(struct platform_device *pdev)
 		return ret;
 	}
 
-	INIT_WORK(&bci->work, twl4030_bci_usb_work);
-	INIT_DELAYED_WORK(&bci->current_worker, twl4030_current_worker);
-
-	bci->usb_nb.notifier_call = twl4030_bci_usb_ncb;
-	if (bci->dev->of_node) {
-		struct device_node *phynode;
-
-		phynode = of_find_compatible_node(bci->dev->of_node->parent,
-						  NULL, "ti,twl4030-usb");
-		if (phynode)
-			bci->transceiver = devm_usb_get_phy_by_node(
-				bci->dev, phynode, &bci->usb_nb);
-	}
-
 	/* Enable interrupts now. */
 	reg = ~(u32)(TWL4030_ICHGLOW | TWL4030_ICHGEOC | TWL4030_TBATOR2 |
 		TWL4030_TBATOR1 | TWL4030_BATSTS);
diff --git a/drivers/ptp/ptp_clock.c b/drivers/ptp/ptp_clock.c
index b77435783ef3..7eacc1c4b3b1 100644
--- a/drivers/ptp/ptp_clock.c
+++ b/drivers/ptp/ptp_clock.c
@@ -28,6 +28,7 @@
 #include <linux/slab.h>
 #include <linux/syscalls.h>
 #include <linux/uaccess.h>
+#include <uapi/linux/sched/types.h>
 
 #include "ptp_private.h"
 
@@ -184,6 +185,19 @@ static void delete_ptp_clock(struct posix_clock *pc)
 	kfree(ptp);
 }
 
+static void ptp_aux_kworker(struct kthread_work *work)
+{
+	struct ptp_clock *ptp = container_of(work, struct ptp_clock,
+					     aux_work.work);
+	struct ptp_clock_info *info = ptp->info;
+	long delay;
+
+	delay = info->do_aux_work(info);
+
+	if (delay >= 0)
+		kthread_queue_delayed_work(ptp->kworker, &ptp->aux_work, delay);
+}
+
 /* public interface */
 
 struct ptp_clock *ptp_clock_register(struct ptp_clock_info *info,
@@ -217,6 +231,20 @@ struct ptp_clock *ptp_clock_register(struct ptp_clock_info *info,
 	mutex_init(&ptp->pincfg_mux);
 	init_waitqueue_head(&ptp->tsev_wq);
 
+	if (ptp->info->do_aux_work) {
+		char *worker_name = kasprintf(GFP_KERNEL, "ptp%d", ptp->index);
+
+		kthread_init_delayed_work(&ptp->aux_work, ptp_aux_kworker);
+		ptp->kworker = kthread_create_worker(0, worker_name ?
+						     worker_name : info->name);
+		kfree(worker_name);
+		if (IS_ERR(ptp->kworker)) {
+			err = PTR_ERR(ptp->kworker);
+			pr_err("failed to create ptp aux_worker %d\n", err);
+			goto kworker_err;
+		}
+	}
+
 	err = ptp_populate_pin_groups(ptp);
 	if (err)
 		goto no_pin_groups;
@@ -259,6 +287,9 @@ no_pps:
 no_device:
 	ptp_cleanup_pin_groups(ptp);
 no_pin_groups:
+	if (ptp->kworker)
+		kthread_destroy_worker(ptp->kworker);
+kworker_err:
 	mutex_destroy(&ptp->tsevq_mux);
 	mutex_destroy(&ptp->pincfg_mux);
 	ida_simple_remove(&ptp_clocks_map, index);
@@ -274,6 +305,11 @@ int ptp_clock_unregister(struct ptp_clock *ptp)
 	ptp->defunct = 1;
 	wake_up_interruptible(&ptp->tsev_wq);
 
+	if (ptp->kworker) {
+		kthread_cancel_delayed_work_sync(&ptp->aux_work);
+		kthread_destroy_worker(ptp->kworker);
+	}
+
 	/* Release the clock's resources. */
 	if (ptp->pps_source)
 		pps_unregister_source(ptp->pps_source);
@@ -339,6 +375,12 @@ int ptp_find_pin(struct ptp_clock *ptp,
 }
 EXPORT_SYMBOL(ptp_find_pin);
 
+int ptp_schedule_worker(struct ptp_clock *ptp, unsigned long delay)
+{
+	return kthread_mod_delayed_work(ptp->kworker, &ptp->aux_work, delay);
+}
+EXPORT_SYMBOL(ptp_schedule_worker);
+
 /* module operations */
 
 static void __exit ptp_exit(void)
diff --git a/drivers/ptp/ptp_private.h b/drivers/ptp/ptp_private.h
index d95888974d0c..b86f1bfecd6f 100644
--- a/drivers/ptp/ptp_private.h
+++ b/drivers/ptp/ptp_private.h
@@ -22,6 +22,7 @@
 
 #include <linux/cdev.h>
 #include <linux/device.h>
+#include <linux/kthread.h>
 #include <linux/mutex.h>
 #include <linux/posix-clock.h>
 #include <linux/ptp_clock.h>
@@ -56,6 +57,8 @@ struct ptp_clock {
 	struct attribute_group pin_attr_group;
 	/* 1st entry is a pointer to the real group, 2nd is NULL terminator */
 	const struct attribute_group *pin_attr_groups[2];
+	struct kthread_worker *kworker;
+	struct kthread_delayed_work aux_work;
 };
 
 /*
diff --git a/drivers/pwm/core.c b/drivers/pwm/core.c
index a0860b30bd93..1581f6ab1b1f 100644
--- a/drivers/pwm/core.c
+++ b/drivers/pwm/core.c
@@ -678,7 +678,9 @@ struct pwm_device *of_pwm_get(struct device_node *np, const char *con_id)
 
 	pc = of_node_to_pwmchip(args.np);
 	if (IS_ERR(pc)) {
-		pr_err("%s(): PWM chip not found\n", __func__);
+		if (PTR_ERR(pc) != -EPROBE_DEFER)
+			pr_err("%s(): PWM chip not found\n", __func__);
+
 		pwm = ERR_CAST(pc);
 		goto put;
 	}
diff --git a/drivers/pwm/pwm-bfin.c b/drivers/pwm/pwm-bfin.c
index d2ed0a2a18e8..a9a88137f2cb 100644
--- a/drivers/pwm/pwm-bfin.c
+++ b/drivers/pwm/pwm-bfin.c
@@ -118,10 +118,8 @@ static int bfin_pwm_probe(struct platform_device *pdev)
 	int ret;
 
 	pwm = devm_kzalloc(&pdev->dev, sizeof(*pwm), GFP_KERNEL);
-	if (!pwm) {
-		dev_err(&pdev->dev, "failed to allocate memory\n");
+	if (!pwm)
 		return -ENOMEM;
-	}
 
 	platform_set_drvdata(pdev, pwm);
 
diff --git a/drivers/pwm/pwm-cros-ec.c b/drivers/pwm/pwm-cros-ec.c
index f6ca4e8c6253..9c13694eaa24 100644
--- a/drivers/pwm/pwm-cros-ec.c
+++ b/drivers/pwm/pwm-cros-ec.c
@@ -75,8 +75,8 @@ static int __cros_ec_pwm_get_duty(struct cros_ec_device *ec, u8 index,
 
 	msg->version = 0;
 	msg->command = EC_CMD_PWM_GET_DUTY;
-	msg->insize = sizeof(*params);
-	msg->outsize = sizeof(*resp);
+	msg->insize = sizeof(*resp);
+	msg->outsize = sizeof(*params);
 
 	params->pwm_type = EC_PWM_TYPE_GENERIC;
 	params->index = index;
diff --git a/drivers/pwm/pwm-hibvt.c b/drivers/pwm/pwm-hibvt.c
index d0e8f8542626..8dadc58d6cdf 100644
--- a/drivers/pwm/pwm-hibvt.c
+++ b/drivers/pwm/pwm-hibvt.c
@@ -165,7 +165,7 @@ static int hibvt_pwm_apply(struct pwm_chip *chip, struct pwm_device *pwm,
 	return 0;
 }
 
-static struct pwm_ops hibvt_pwm_ops = {
+static const struct pwm_ops hibvt_pwm_ops = {
 	.get_state = hibvt_pwm_get_state,
 	.apply = hibvt_pwm_apply,
 
diff --git a/drivers/pwm/pwm-meson.c b/drivers/pwm/pwm-meson.c
index 045ef9fa6fe3..cb845edfe2b4 100644
--- a/drivers/pwm/pwm-meson.c
+++ b/drivers/pwm/pwm-meson.c
@@ -103,6 +103,7 @@ struct meson_pwm_channel {
 
 struct meson_pwm_data {
 	const char * const *parent_names;
+	unsigned int num_parents;
 };
 
 struct meson_pwm {
@@ -162,7 +163,8 @@ static int meson_pwm_calc(struct meson_pwm *meson,
 			  unsigned int duty, unsigned int period)
 {
 	unsigned int pre_div, cnt, duty_cnt;
-	unsigned long fin_freq = -1, fin_ns;
+	unsigned long fin_freq = -1;
+	u64 fin_ps;
 
 	if (~(meson->inverter_mask >> id) & 0x1)
 		duty = period - duty;
@@ -178,13 +180,15 @@ static int meson_pwm_calc(struct meson_pwm *meson,
 	}
 
 	dev_dbg(meson->chip.dev, "fin_freq: %lu Hz\n", fin_freq);
-	fin_ns = NSEC_PER_SEC / fin_freq;
+	fin_ps = (u64)NSEC_PER_SEC * 1000;
+	do_div(fin_ps, fin_freq);
 
 	/* Calc pre_div with the period */
 	for (pre_div = 0; pre_div < MISC_CLK_DIV_MASK; pre_div++) {
-		cnt = DIV_ROUND_CLOSEST(period, fin_ns * (pre_div + 1));
-		dev_dbg(meson->chip.dev, "fin_ns=%lu pre_div=%u cnt=%u\n",
-			fin_ns, pre_div, cnt);
+		cnt = DIV_ROUND_CLOSEST_ULL((u64)period * 1000,
+					    fin_ps * (pre_div + 1));
+		dev_dbg(meson->chip.dev, "fin_ps=%llu pre_div=%u cnt=%u\n",
+			fin_ps, pre_div, cnt);
 		if (cnt <= 0xffff)
 			break;
 	}
@@ -207,7 +211,8 @@ static int meson_pwm_calc(struct meson_pwm *meson,
 		channel->lo = cnt;
 	} else {
 		/* Then check is we can have the duty with the same pre_div */
-		duty_cnt = DIV_ROUND_CLOSEST(duty, fin_ns * (pre_div + 1));
+		duty_cnt = DIV_ROUND_CLOSEST_ULL((u64)duty * 1000,
+						 fin_ps * (pre_div + 1));
 		if (duty_cnt > 0xffff) {
 			dev_err(meson->chip.dev, "unable to get duty cycle\n");
 			return -EINVAL;
@@ -381,6 +386,7 @@ static const char * const pwm_meson8b_parent_names[] = {
 
 static const struct meson_pwm_data pwm_meson8b_data = {
 	.parent_names = pwm_meson8b_parent_names,
+	.num_parents = ARRAY_SIZE(pwm_meson8b_parent_names),
 };
 
 static const char * const pwm_gxbb_parent_names[] = {
@@ -389,11 +395,35 @@ static const char * const pwm_gxbb_parent_names[] = {
 
 static const struct meson_pwm_data pwm_gxbb_data = {
 	.parent_names = pwm_gxbb_parent_names,
+	.num_parents = ARRAY_SIZE(pwm_gxbb_parent_names),
+};
+
+/*
+ * Only the 2 first inputs of the GXBB AO PWMs are valid
+ * The last 2 are grounded
+ */
+static const char * const pwm_gxbb_ao_parent_names[] = {
+	"xtal", "clk81"
+};
+
+static const struct meson_pwm_data pwm_gxbb_ao_data = {
+	.parent_names = pwm_gxbb_ao_parent_names,
+	.num_parents = ARRAY_SIZE(pwm_gxbb_ao_parent_names),
 };
 
 static const struct of_device_id meson_pwm_matches[] = {
-	{ .compatible = "amlogic,meson8b-pwm", .data = &pwm_meson8b_data },
-	{ .compatible = "amlogic,meson-gxbb-pwm", .data = &pwm_gxbb_data },
+	{
+		.compatible = "amlogic,meson8b-pwm",
+		.data = &pwm_meson8b_data
+	},
+	{
+		.compatible = "amlogic,meson-gxbb-pwm",
+		.data = &pwm_gxbb_data
+	},
+	{
+		.compatible = "amlogic,meson-gxbb-ao-pwm",
+		.data = &pwm_gxbb_ao_data
+	},
 	{},
 };
 MODULE_DEVICE_TABLE(of, meson_pwm_matches);
@@ -417,7 +447,7 @@ static int meson_pwm_init_channels(struct meson_pwm *meson,
 		init.ops = &clk_mux_ops;
 		init.flags = CLK_IS_BASIC;
 		init.parent_names = meson->data->parent_names;
-		init.num_parents = 1 << MISC_CLK_SEL_WIDTH;
+		init.num_parents = meson->data->num_parents;
 
 		channel->mux.reg = meson->base + REG_MISC_AB;
 		channel->mux.shift = mux_reg_shifts[i];
diff --git a/drivers/pwm/pwm-sun4i.c b/drivers/pwm/pwm-sun4i.c
index 1284ffa05921..6d23f1d1c9b7 100644
--- a/drivers/pwm/pwm-sun4i.c
+++ b/drivers/pwm/pwm-sun4i.c
@@ -8,8 +8,10 @@
 
 #include <linux/bitops.h>
 #include <linux/clk.h>
+#include <linux/delay.h>
 #include <linux/err.h>
 #include <linux/io.h>
+#include <linux/jiffies.h>
 #include <linux/module.h>
 #include <linux/of.h>
 #include <linux/of_device.h>
@@ -44,6 +46,10 @@
 
 #define PWM_DTY_MASK		GENMASK(15, 0)
 
+#define PWM_REG_PRD(reg)	((((reg) >> 16) & PWM_PRD_MASK) + 1)
+#define PWM_REG_DTY(reg)	((reg) & PWM_DTY_MASK)
+#define PWM_REG_PRESCAL(reg, chan)	(((reg) >> ((chan) * PWMCH_OFFSET)) & PWM_PRESCAL_MASK)
+
 #define BIT_CH(bit, chan)	((bit) << ((chan) * PWMCH_OFFSET))
 
 static const u32 prescaler_table[] = {
@@ -77,6 +83,8 @@ struct sun4i_pwm_chip {
 	void __iomem *base;
 	spinlock_t ctrl_lock;
 	const struct sun4i_pwm_data *data;
+	unsigned long next_period[2];
+	bool needs_delay[2];
 };
 
 static inline struct sun4i_pwm_chip *to_sun4i_pwm_chip(struct pwm_chip *chip)
@@ -96,26 +104,65 @@ static inline void sun4i_pwm_writel(struct sun4i_pwm_chip *chip,
 	writel(val, chip->base + offset);
 }
 
-static int sun4i_pwm_config(struct pwm_chip *chip, struct pwm_device *pwm,
-			    int duty_ns, int period_ns)
+static void sun4i_pwm_get_state(struct pwm_chip *chip,
+				struct pwm_device *pwm,
+				struct pwm_state *state)
 {
 	struct sun4i_pwm_chip *sun4i_pwm = to_sun4i_pwm_chip(chip);
-	u32 prd, dty, val, clk_gate;
+	u64 clk_rate, tmp;
+	u32 val;
+	unsigned int prescaler;
+
+	clk_rate = clk_get_rate(sun4i_pwm->clk);
+
+	val = sun4i_pwm_readl(sun4i_pwm, PWM_CTRL_REG);
+
+	if ((val == PWM_PRESCAL_MASK) && sun4i_pwm->data->has_prescaler_bypass)
+		prescaler = 1;
+	else
+		prescaler = prescaler_table[PWM_REG_PRESCAL(val, pwm->hwpwm)];
+
+	if (prescaler == 0)
+		return;
+
+	if (val & BIT_CH(PWM_ACT_STATE, pwm->hwpwm))
+		state->polarity = PWM_POLARITY_NORMAL;
+	else
+		state->polarity = PWM_POLARITY_INVERSED;
+
+	if (val & BIT_CH(PWM_CLK_GATING | PWM_EN, pwm->hwpwm))
+		state->enabled = true;
+	else
+		state->enabled = false;
+
+	val = sun4i_pwm_readl(sun4i_pwm, PWM_CH_PRD(pwm->hwpwm));
+
+	tmp = prescaler * NSEC_PER_SEC * PWM_REG_DTY(val);
+	state->duty_cycle = DIV_ROUND_CLOSEST_ULL(tmp, clk_rate);
+
+	tmp = prescaler * NSEC_PER_SEC * PWM_REG_PRD(val);
+	state->period = DIV_ROUND_CLOSEST_ULL(tmp, clk_rate);
+}
+
+static int sun4i_pwm_calculate(struct sun4i_pwm_chip *sun4i_pwm,
+			       struct pwm_state *state,
+			       u32 *dty, u32 *prd, unsigned int *prsclr)
+{
 	u64 clk_rate, div = 0;
-	unsigned int prescaler = 0;
-	int err;
+	unsigned int pval, prescaler = 0;
 
 	clk_rate = clk_get_rate(sun4i_pwm->clk);
 
 	if (sun4i_pwm->data->has_prescaler_bypass) {
 		/* First, test without any prescaler when available */
 		prescaler = PWM_PRESCAL_MASK;
+		pval = 1;
 		/*
 		 * When not using any prescaler, the clock period in nanoseconds
 		 * is not an integer so round it half up instead of
 		 * truncating to get less surprising values.
 		 */
-		div = clk_rate * period_ns + NSEC_PER_SEC / 2;
+		div = clk_rate * state->period + NSEC_PER_SEC / 2;
 		do_div(div, NSEC_PER_SEC);
 		if (div - 1 > PWM_PRD_MASK)
 			prescaler = 0;
@@ -126,137 +173,141 @@ static int sun4i_pwm_config(struct pwm_chip *chip, struct pwm_device *pwm,
 		for (prescaler = 0; prescaler < PWM_PRESCAL_MASK; prescaler++) {
 			if (!prescaler_table[prescaler])
 				continue;
+			pval = prescaler_table[prescaler];
 			div = clk_rate;
-			do_div(div, prescaler_table[prescaler]);
-			div = div * period_ns;
+			do_div(div, pval);
+			div = div * state->period;
 			do_div(div, NSEC_PER_SEC);
 			if (div - 1 <= PWM_PRD_MASK)
 				break;
 		}
 
-		if (div - 1 > PWM_PRD_MASK) {
-			dev_err(chip->dev, "period exceeds the maximum value\n");
+		if (div - 1 > PWM_PRD_MASK)
 			return -EINVAL;
-		}
-	}
-
-	prd = div;
-	div *= duty_ns;
-	do_div(div, period_ns);
-	dty = div;
-
-	err = clk_prepare_enable(sun4i_pwm->clk);
-	if (err) {
-		dev_err(chip->dev, "failed to enable PWM clock\n");
-		return err;
-	}
-
-	spin_lock(&sun4i_pwm->ctrl_lock);
-	val = sun4i_pwm_readl(sun4i_pwm, PWM_CTRL_REG);
-
-	if (sun4i_pwm->data->has_rdy && (val & PWM_RDY(pwm->hwpwm))) {
-		spin_unlock(&sun4i_pwm->ctrl_lock);
-		clk_disable_unprepare(sun4i_pwm->clk);
-		return -EBUSY;
-	}
-
-	clk_gate = val & BIT_CH(PWM_CLK_GATING, pwm->hwpwm);
-	if (clk_gate) {
-		val &= ~BIT_CH(PWM_CLK_GATING, pwm->hwpwm);
-		sun4i_pwm_writel(sun4i_pwm, val, PWM_CTRL_REG);
 	}
 
-	val = sun4i_pwm_readl(sun4i_pwm, PWM_CTRL_REG);
-	val &= ~BIT_CH(PWM_PRESCAL_MASK, pwm->hwpwm);
-	val |= BIT_CH(prescaler, pwm->hwpwm);
-	sun4i_pwm_writel(sun4i_pwm, val, PWM_CTRL_REG);
-
-	val = (dty & PWM_DTY_MASK) | PWM_PRD(prd);
-	sun4i_pwm_writel(sun4i_pwm, val, PWM_CH_PRD(pwm->hwpwm));
+	*prd = div;
+	div *= state->duty_cycle;
+	do_div(div, state->period);
+	*dty = div;
+	*prsclr = prescaler;
 
-	if (clk_gate) {
-		val = sun4i_pwm_readl(sun4i_pwm, PWM_CTRL_REG);
-		val |= clk_gate;
-		sun4i_pwm_writel(sun4i_pwm, val, PWM_CTRL_REG);
-	}
+	div = (u64)pval * NSEC_PER_SEC * *prd;
+	state->period = DIV_ROUND_CLOSEST_ULL(div, clk_rate);
 
-	spin_unlock(&sun4i_pwm->ctrl_lock);
-	clk_disable_unprepare(sun4i_pwm->clk);
+	div = (u64)pval * NSEC_PER_SEC * *dty;
+	state->duty_cycle = DIV_ROUND_CLOSEST_ULL(div, clk_rate);
 
 	return 0;
 }
 
-static int sun4i_pwm_set_polarity(struct pwm_chip *chip, struct pwm_device *pwm,
-				  enum pwm_polarity polarity)
+static int sun4i_pwm_apply(struct pwm_chip *chip, struct pwm_device *pwm,
+			   struct pwm_state *state)
 {
 	struct sun4i_pwm_chip *sun4i_pwm = to_sun4i_pwm_chip(chip);
-	u32 val;
+	struct pwm_state cstate;
+	u32 ctrl;
 	int ret;
+	unsigned int delay_us;
+	unsigned long now;
 
-	ret = clk_prepare_enable(sun4i_pwm->clk);
-	if (ret) {
-		dev_err(chip->dev, "failed to enable PWM clock\n");
-		return ret;
+	pwm_get_state(pwm, &cstate);
+
+	if (!cstate.enabled) {
+		ret = clk_prepare_enable(sun4i_pwm->clk);
+		if (ret) {
+			dev_err(chip->dev, "failed to enable PWM clock\n");
+			return ret;
+		}
 	}
 
 	spin_lock(&sun4i_pwm->ctrl_lock);
-	val = sun4i_pwm_readl(sun4i_pwm, PWM_CTRL_REG);
+	ctrl = sun4i_pwm_readl(sun4i_pwm, PWM_CTRL_REG);
 
-	if (polarity != PWM_POLARITY_NORMAL)
-		val &= ~BIT_CH(PWM_ACT_STATE, pwm->hwpwm);
-	else
-		val |= BIT_CH(PWM_ACT_STATE, pwm->hwpwm);
+	if ((cstate.period != state->period) ||
+	    (cstate.duty_cycle != state->duty_cycle)) {
+		u32 period, duty, val;
+		unsigned int prescaler;
 
-	sun4i_pwm_writel(sun4i_pwm, val, PWM_CTRL_REG);
+		ret = sun4i_pwm_calculate(sun4i_pwm, state,
+					  &duty, &period, &prescaler);
+		if (ret) {
+			dev_err(chip->dev, "period exceeds the maximum value\n");
+			spin_unlock(&sun4i_pwm->ctrl_lock);
+			if (!cstate.enabled)
+				clk_disable_unprepare(sun4i_pwm->clk);
+			return ret;
+		}
 
-	spin_unlock(&sun4i_pwm->ctrl_lock);
-	clk_disable_unprepare(sun4i_pwm->clk);
+		if (PWM_REG_PRESCAL(ctrl, pwm->hwpwm) != prescaler) {
+			/* Prescaler changed, the clock has to be gated */
+			ctrl &= ~BIT_CH(PWM_CLK_GATING, pwm->hwpwm);
+			sun4i_pwm_writel(sun4i_pwm, ctrl, PWM_CTRL_REG);
 
-	return 0;
-}
+			ctrl &= ~BIT_CH(PWM_PRESCAL_MASK, pwm->hwpwm);
+			ctrl |= BIT_CH(prescaler, pwm->hwpwm);
+		}
 
-static int sun4i_pwm_enable(struct pwm_chip *chip, struct pwm_device *pwm)
-{
-	struct sun4i_pwm_chip *sun4i_pwm = to_sun4i_pwm_chip(chip);
-	u32 val;
-	int ret;
+		val = (duty & PWM_DTY_MASK) | PWM_PRD(period);
+		sun4i_pwm_writel(sun4i_pwm, val, PWM_CH_PRD(pwm->hwpwm));
+		sun4i_pwm->next_period[pwm->hwpwm] = jiffies +
+			usecs_to_jiffies(cstate.period / 1000 + 1);
+		sun4i_pwm->needs_delay[pwm->hwpwm] = true;
+	}
 
-	ret = clk_prepare_enable(sun4i_pwm->clk);
-	if (ret) {
-		dev_err(chip->dev, "failed to enable PWM clock\n");
-		return ret;
+	if (state->polarity != PWM_POLARITY_NORMAL)
+		ctrl &= ~BIT_CH(PWM_ACT_STATE, pwm->hwpwm);
+	else
+		ctrl |= BIT_CH(PWM_ACT_STATE, pwm->hwpwm);
+
+	ctrl |= BIT_CH(PWM_CLK_GATING, pwm->hwpwm);
+	if (state->enabled) {
+		ctrl |= BIT_CH(PWM_EN, pwm->hwpwm);
+	} else if (!sun4i_pwm->needs_delay[pwm->hwpwm]) {
+		ctrl &= ~BIT_CH(PWM_EN, pwm->hwpwm);
+		ctrl &= ~BIT_CH(PWM_CLK_GATING, pwm->hwpwm);
 	}
 
-	spin_lock(&sun4i_pwm->ctrl_lock);
-	val = sun4i_pwm_readl(sun4i_pwm, PWM_CTRL_REG);
-	val |= BIT_CH(PWM_EN, pwm->hwpwm);
-	val |= BIT_CH(PWM_CLK_GATING, pwm->hwpwm);
-	sun4i_pwm_writel(sun4i_pwm, val, PWM_CTRL_REG);
+	sun4i_pwm_writel(sun4i_pwm, ctrl, PWM_CTRL_REG);
+
 	spin_unlock(&sun4i_pwm->ctrl_lock);
 
-	return 0;
-}
+	if (state->enabled)
+		return 0;
 
-static void sun4i_pwm_disable(struct pwm_chip *chip, struct pwm_device *pwm)
-{
-	struct sun4i_pwm_chip *sun4i_pwm = to_sun4i_pwm_chip(chip);
-	u32 val;
+	if (!sun4i_pwm->needs_delay[pwm->hwpwm]) {
+		clk_disable_unprepare(sun4i_pwm->clk);
+		return 0;
+	}
+
+	/* We need a full period to elapse before disabling the channel. */
+	now = jiffies;
+	if (sun4i_pwm->needs_delay[pwm->hwpwm] &&
+	    time_before(now, sun4i_pwm->next_period[pwm->hwpwm])) {
+		delay_us = jiffies_to_usecs(sun4i_pwm->next_period[pwm->hwpwm] -
+					   now);
+		if ((delay_us / 500) > MAX_UDELAY_MS)
+			msleep(delay_us / 1000 + 1);
+		else
+			usleep_range(delay_us, delay_us * 2);
+	}
+	sun4i_pwm->needs_delay[pwm->hwpwm] = false;
 
 	spin_lock(&sun4i_pwm->ctrl_lock);
-	val = sun4i_pwm_readl(sun4i_pwm, PWM_CTRL_REG);
-	val &= ~BIT_CH(PWM_EN, pwm->hwpwm);
-	val &= ~BIT_CH(PWM_CLK_GATING, pwm->hwpwm);
-	sun4i_pwm_writel(sun4i_pwm, val, PWM_CTRL_REG);
+	ctrl = sun4i_pwm_readl(sun4i_pwm, PWM_CTRL_REG);
+	ctrl &= ~BIT_CH(PWM_CLK_GATING, pwm->hwpwm);
+	ctrl &= ~BIT_CH(PWM_EN, pwm->hwpwm);
+	sun4i_pwm_writel(sun4i_pwm, ctrl, PWM_CTRL_REG);
 	spin_unlock(&sun4i_pwm->ctrl_lock);
 
 	clk_disable_unprepare(sun4i_pwm->clk);
+
+	return 0;
 }
 
 static const struct pwm_ops sun4i_pwm_ops = {
-	.config = sun4i_pwm_config,
-	.set_polarity = sun4i_pwm_set_polarity,
-	.enable = sun4i_pwm_enable,
-	.disable = sun4i_pwm_disable,
+	.apply = sun4i_pwm_apply,
+	.get_state = sun4i_pwm_get_state,
 	.owner = THIS_MODULE,
 };
 
@@ -316,8 +367,7 @@ static int sun4i_pwm_probe(struct platform_device *pdev)
 {
 	struct sun4i_pwm_chip *pwm;
 	struct resource *res;
-	u32 val;
-	int i, ret;
+	int ret;
 	const struct of_device_id *match;
 
 	match = of_match_device(sun4i_pwm_dt_ids, &pdev->dev);
@@ -353,24 +403,7 @@ static int sun4i_pwm_probe(struct platform_device *pdev)
 
 	platform_set_drvdata(pdev, pwm);
 
-	ret = clk_prepare_enable(pwm->clk);
-	if (ret) {
-		dev_err(&pdev->dev, "failed to enable PWM clock\n");
-		goto clk_error;
-	}
-
-	val = sun4i_pwm_readl(pwm, PWM_CTRL_REG);
-	for (i = 0; i < pwm->chip.npwm; i++)
-		if (!(val & BIT_CH(PWM_ACT_STATE, i)))
-			pwm_set_polarity(&pwm->chip.pwms[i],
-					 PWM_POLARITY_INVERSED);
-	clk_disable_unprepare(pwm->clk);
-
 	return 0;
-
-clk_error:
-	pwmchip_remove(&pwm->chip);
-	return ret;
 }
 
 static int sun4i_pwm_remove(struct platform_device *pdev)
diff --git a/drivers/pwm/pwm-tegra.c b/drivers/pwm/pwm-tegra.c
index 8c6ed556db28..e9b33f09ff09 100644
--- a/drivers/pwm/pwm-tegra.c
+++ b/drivers/pwm/pwm-tegra.c
@@ -41,6 +41,9 @@
 
 struct tegra_pwm_soc {
 	unsigned int num_channels;
+
+	/* Maximum IP frequency for given SoCs */
+	unsigned long max_frequency;
 };
 
 struct tegra_pwm_chip {
@@ -201,7 +204,18 @@ static int tegra_pwm_probe(struct platform_device *pdev)
 	if (IS_ERR(pwm->clk))
 		return PTR_ERR(pwm->clk);
 
-	/* Read PWM clock rate from source */
+	/* Set maximum frequency of the IP */
+	ret = clk_set_rate(pwm->clk, pwm->soc->max_frequency);
+	if (ret < 0) {
+		dev_err(&pdev->dev, "Failed to set max frequency: %d\n", ret);
+		return ret;
+	}
+
+	/*
+	 * The requested and configured frequency may differ due to
+	 * clock register resolutions. Get the configured frequency
+	 * so that PWM period can be calculated more accurately.
+	 */
 	pwm->clk_rate = clk_get_rate(pwm->clk);
 
 	pwm->rst = devm_reset_control_get(&pdev->dev, "pwm");
@@ -273,10 +287,12 @@ static int tegra_pwm_resume(struct device *dev)
 
 static const struct tegra_pwm_soc tegra20_pwm_soc = {
 	.num_channels = 4,
+	.max_frequency = 48000000UL,
 };
 
 static const struct tegra_pwm_soc tegra186_pwm_soc = {
 	.num_channels = 1,
+	.max_frequency = 102000000UL,
 };
 
 static const struct of_device_id tegra_pwm_of_match[] = {
diff --git a/drivers/rtc/Kconfig b/drivers/rtc/Kconfig
index 8d3b95728326..72419ac2c52a 100644
--- a/drivers/rtc/Kconfig
+++ b/drivers/rtc/Kconfig
@@ -77,6 +77,14 @@ config RTC_DEBUG
 	  Say yes here to enable debugging support in the RTC framework
 	  and individual RTC drivers.
 
+config RTC_NVMEM
+	bool "RTC non volatile storage support"
+	select NVMEM
+	default RTC_CLASS
+	help
+	  Say yes here to add support for the non volatile (often battery
+	  backed) storage present on RTCs.
+
 comment "RTC interfaces"
 
 config RTC_INTF_SYSFS
@@ -197,6 +205,17 @@ config RTC_DRV_AC100
 	  This driver can also be built as a module. If so, the module
 	  will be called rtc-ac100.
 
+config RTC_DRV_BRCMSTB
+	tristate "Broadcom STB wake-timer"
+	depends on ARCH_BRCMSTB || BMIPS_GENERIC || COMPILE_TEST
+	default ARCH_BRCMSTB || BMIPS_GENERIC
+	help
+	  If you say yes here you get support for the wake-timer found on
+	  Broadcom STB SoCs (BCM7xxx).
+
+	  This driver can also be built as a module. If so, the module will
+	  be called rtc-brcmstb-waketimer.
+
 config RTC_DRV_AS3722
 	tristate "ams AS3722 RTC driver"
 	depends on MFD_AS3722
@@ -791,6 +810,14 @@ config RTC_DRV_DS3232
 	  This driver can also be built as a module.  If so, the module
 	  will be called rtc-ds3232.
 
+config RTC_DRV_DS3232_HWMON
+	bool "HWMON support for Dallas/Maxim DS3232/DS3234"
+	depends on RTC_DRV_DS3232 && HWMON && !(RTC_DRV_DS3232=y && HWMON=m)
+	default y
+	help
+	  Say Y here if you want to expose temperature sensor data on
+	  rtc-ds3232
+
 config RTC_DRV_PCF2127
 	tristate "NXP PCF2127"
 	depends on RTC_I2C_AND_SPI
@@ -1484,16 +1511,16 @@ config RTC_DRV_ARMADA38X
 	  This driver can also be built as a module. If so, the module
 	  will be called armada38x-rtc.
 
-config RTC_DRV_GEMINI
-	tristate "Gemini SoC RTC"
-	depends on ARCH_GEMINI || COMPILE_TEST
+config RTC_DRV_FTRTC010
+	tristate "Faraday Technology FTRTC010 RTC"
 	depends on HAS_IOMEM
+	default ARCH_GEMINI
 	help
 	  If you say Y here you will get support for the
-	  RTC found on Gemini SoC's.
+	  Faraday Technolog FTRTC010 found on e.g. Gemini SoC's.
 
 	  This driver can also be built as a module. If so, the module
-	  will be called rtc-gemini.
+	  will be called rtc-ftrtc010.
 
 config RTC_DRV_PS3
 	tristate "PS3 RTC"
diff --git a/drivers/rtc/Makefile b/drivers/rtc/Makefile
index 13857d2fce09..acd366b41c85 100644
--- a/drivers/rtc/Makefile
+++ b/drivers/rtc/Makefile
@@ -15,6 +15,7 @@ ifdef CONFIG_RTC_DRV_EFI
 rtc-core-y			+= rtc-efi-platform.o
 endif
 
+rtc-core-$(CONFIG_RTC_NVMEM)		+= nvmem.o
 rtc-core-$(CONFIG_RTC_INTF_DEV)		+= rtc-dev.o
 rtc-core-$(CONFIG_RTC_INTF_PROC)	+= rtc-proc.o
 rtc-core-$(CONFIG_RTC_INTF_SYSFS)	+= rtc-sysfs.o
@@ -36,6 +37,7 @@ obj-$(CONFIG_RTC_DRV_AT91RM9200)+= rtc-at91rm9200.o
 obj-$(CONFIG_RTC_DRV_AT91SAM9)	+= rtc-at91sam9.o
 obj-$(CONFIG_RTC_DRV_AU1XXX)	+= rtc-au1xxx.o
 obj-$(CONFIG_RTC_DRV_BFIN)	+= rtc-bfin.o
+obj-$(CONFIG_RTC_DRV_BRCMSTB)	+= rtc-brcmstb-waketimer.o
 obj-$(CONFIG_RTC_DRV_BQ32K)	+= rtc-bq32k.o
 obj-$(CONFIG_RTC_DRV_BQ4802)	+= rtc-bq4802.o
 obj-$(CONFIG_RTC_DRV_CMOS)	+= rtc-cmos.o
@@ -67,7 +69,7 @@ obj-$(CONFIG_RTC_DRV_EFI)	+= rtc-efi.o
 obj-$(CONFIG_RTC_DRV_EM3027)	+= rtc-em3027.o
 obj-$(CONFIG_RTC_DRV_EP93XX)	+= rtc-ep93xx.o
 obj-$(CONFIG_RTC_DRV_FM3130)	+= rtc-fm3130.o
-obj-$(CONFIG_RTC_DRV_GEMINI)	+= rtc-gemini.o
+obj-$(CONFIG_RTC_DRV_FTRTC010)	+= rtc-ftrtc010.o
 obj-$(CONFIG_RTC_DRV_GENERIC)	+= rtc-generic.o
 obj-$(CONFIG_RTC_DRV_HID_SENSOR_TIME) += rtc-hid-sensor-time.o
 obj-$(CONFIG_RTC_DRV_HYM8563)	+= rtc-hym8563.o
diff --git a/drivers/rtc/class.c b/drivers/rtc/class.c
index 5fb439897fe1..2ed970d61da1 100644
--- a/drivers/rtc/class.c
+++ b/drivers/rtc/class.c
@@ -150,59 +150,19 @@ static SIMPLE_DEV_PM_OPS(rtc_class_dev_pm_ops, rtc_suspend, rtc_resume);
 #define RTC_CLASS_DEV_PM_OPS	NULL
 #endif
 
-
-/**
- * rtc_device_register - register w/ RTC class
- * @dev: the device to register
- *
- * rtc_device_unregister() must be called when the class device is no
- * longer needed.
- *
- * Returns the pointer to the new struct class device.
- */
-struct rtc_device *rtc_device_register(const char *name, struct device *dev,
-					const struct rtc_class_ops *ops,
-					struct module *owner)
+/* Ensure the caller will set the id before releasing the device */
+static struct rtc_device *rtc_allocate_device(void)
 {
 	struct rtc_device *rtc;
-	struct rtc_wkalrm alrm;
-	int of_id = -1, id = -1, err;
-
-	if (dev->of_node)
-		of_id = of_alias_get_id(dev->of_node, "rtc");
-	else if (dev->parent && dev->parent->of_node)
-		of_id = of_alias_get_id(dev->parent->of_node, "rtc");
 
-	if (of_id >= 0) {
-		id = ida_simple_get(&rtc_ida, of_id, of_id + 1,
-				    GFP_KERNEL);
-		if (id < 0)
-			dev_warn(dev, "/aliases ID %d not available\n",
-				    of_id);
-	}
-
-	if (id < 0) {
-		id = ida_simple_get(&rtc_ida, 0, 0, GFP_KERNEL);
-		if (id < 0) {
-			err = id;
-			goto exit;
-		}
-	}
-
-	rtc = kzalloc(sizeof(struct rtc_device), GFP_KERNEL);
-	if (rtc == NULL) {
-		err = -ENOMEM;
-		goto exit_ida;
-	}
+	rtc = kzalloc(sizeof(*rtc), GFP_KERNEL);
+	if (!rtc)
+		return NULL;
 
 	device_initialize(&rtc->dev);
 
-	rtc->id = id;
-	rtc->ops = ops;
-	rtc->owner = owner;
 	rtc->irq_freq = 1;
 	rtc->max_user_freq = 64;
-	rtc->dev.parent = dev;
 	rtc->dev.class = rtc_class;
 	rtc->dev.groups = rtc_get_dev_attribute_groups();
 	rtc->dev.release = rtc_device_release;
@@ -224,7 +184,64 @@ struct rtc_device *rtc_device_register(const char *name, struct device *dev,
 	rtc->pie_timer.function = rtc_pie_update_irq;
 	rtc->pie_enabled = 0;
 
-	strlcpy(rtc->name, name, RTC_DEVICE_NAME_SIZE);
+	return rtc;
+}
+
+static int rtc_device_get_id(struct device *dev)
+{
+	int of_id = -1, id = -1;
+
+	if (dev->of_node)
+		of_id = of_alias_get_id(dev->of_node, "rtc");
+	else if (dev->parent && dev->parent->of_node)
+		of_id = of_alias_get_id(dev->parent->of_node, "rtc");
+
+	if (of_id >= 0) {
+		id = ida_simple_get(&rtc_ida, of_id, of_id + 1, GFP_KERNEL);
+		if (id < 0)
+			dev_warn(dev, "/aliases ID %d not available\n", of_id);
+	}
+
+	if (id < 0)
+		id = ida_simple_get(&rtc_ida, 0, 0, GFP_KERNEL);
+
+	return id;
+}
+
+/**
+ * rtc_device_register - register w/ RTC class
+ * @dev: the device to register
+ *
+ * rtc_device_unregister() must be called when the class device is no
+ * longer needed.
+ *
+ * Returns the pointer to the new struct class device.
+ */
+struct rtc_device *rtc_device_register(const char *name, struct device *dev,
+					const struct rtc_class_ops *ops,
+					struct module *owner)
+{
+	struct rtc_device *rtc;
+	struct rtc_wkalrm alrm;
+	int id, err;
+
+	id = rtc_device_get_id(dev);
+	if (id < 0) {
+		err = id;
+		goto exit;
+	}
+
+	rtc = rtc_allocate_device();
+	if (!rtc) {
+		err = -ENOMEM;
+		goto exit_ida;
+	}
+
+	rtc->id = id;
+	rtc->ops = ops;
+	rtc->owner = owner;
+	rtc->dev.parent = dev;
+
 	dev_set_name(&rtc->dev, "rtc%d", id);
 
 	/* Check to see if there is an ALARM already set in hw */
@@ -238,20 +255,20 @@ struct rtc_device *rtc_device_register(const char *name, struct device *dev,
 	err = cdev_device_add(&rtc->char_dev, &rtc->dev);
 	if (err) {
 		dev_warn(&rtc->dev, "%s: failed to add char device %d:%d\n",
-			 rtc->name, MAJOR(rtc->dev.devt), rtc->id);
+			 name, MAJOR(rtc->dev.devt), rtc->id);
 
 		/* This will free both memory and the ID */
 		put_device(&rtc->dev);
 		goto exit;
 	} else {
-		dev_dbg(&rtc->dev, "%s: dev (%d:%d)\n", rtc->name,
+		dev_dbg(&rtc->dev, "%s: dev (%d:%d)\n", name,
 			MAJOR(rtc->dev.devt), rtc->id);
 	}
 
 	rtc_proc_add_device(rtc);
 
 	dev_info(dev, "rtc core: registered %s as %s\n",
-			rtc->name, dev_name(&rtc->dev));
+			name, dev_name(&rtc->dev));
 
 	return rtc;
 
@@ -273,6 +290,8 @@ EXPORT_SYMBOL_GPL(rtc_device_register);
  */
 void rtc_device_unregister(struct rtc_device *rtc)
 {
+	rtc_nvmem_unregister(rtc);
+
 	mutex_lock(&rtc->ops_lock);
 	/*
 	 * Remove innards of this RTC, then disable it, before
@@ -356,6 +375,91 @@ void devm_rtc_device_unregister(struct device *dev, struct rtc_device *rtc)
 }
 EXPORT_SYMBOL_GPL(devm_rtc_device_unregister);
 
+static void devm_rtc_release_device(struct device *dev, void *res)
+{
+	struct rtc_device *rtc = *(struct rtc_device **)res;
+
+	if (rtc->registered)
+		rtc_device_unregister(rtc);
+	else
+		put_device(&rtc->dev);
+}
+
+struct rtc_device *devm_rtc_allocate_device(struct device *dev)
+{
+	struct rtc_device **ptr, *rtc;
+	int id, err;
+
+	id = rtc_device_get_id(dev);
+	if (id < 0)
+		return ERR_PTR(id);
+
+	ptr = devres_alloc(devm_rtc_release_device, sizeof(*ptr), GFP_KERNEL);
+	if (!ptr) {
+		err = -ENOMEM;
+		goto exit_ida;
+	}
+
+	rtc = rtc_allocate_device();
+	if (!rtc) {
+		err = -ENOMEM;
+		goto exit_devres;
+	}
+
+	*ptr = rtc;
+	devres_add(dev, ptr);
+
+	rtc->id = id;
+	rtc->dev.parent = dev;
+	dev_set_name(&rtc->dev, "rtc%d", id);
+
+	return rtc;
+
+exit_devres:
+	devres_free(ptr);
+exit_ida:
+	ida_simple_remove(&rtc_ida, id);
+	return ERR_PTR(err);
+}
+EXPORT_SYMBOL_GPL(devm_rtc_allocate_device);
+
+int __rtc_register_device(struct module *owner, struct rtc_device *rtc)
+{
+	struct rtc_wkalrm alrm;
+	int err;
+
+	if (!rtc->ops)
+		return -EINVAL;
+
+	rtc->owner = owner;
+
+	/* Check to see if there is an ALARM already set in hw */
+	err = __rtc_read_alarm(rtc, &alrm);
+	if (!err && !rtc_valid_tm(&alrm.time))
+		rtc_initialize_alarm(rtc, &alrm);
+
+	rtc_dev_prepare(rtc);
+
+	err = cdev_device_add(&rtc->char_dev, &rtc->dev);
+	if (err)
+		dev_warn(rtc->dev.parent, "failed to add char device %d:%d\n",
+			 MAJOR(rtc->dev.devt), rtc->id);
+	else
+		dev_dbg(rtc->dev.parent, "char device (%d:%d)\n",
+			MAJOR(rtc->dev.devt), rtc->id);
+
+	rtc_proc_add_device(rtc);
+
+	rtc_nvmem_register(rtc);
+
+	rtc->registered = true;
+	dev_info(rtc->dev.parent, "registered as %s\n",
+		 dev_name(&rtc->dev));
+
+	return 0;
+}
+EXPORT_SYMBOL_GPL(__rtc_register_device);
+
 static int __init rtc_init(void)
 {
 	rtc_class = class_create(THIS_MODULE, "rtc");
diff --git a/drivers/rtc/interface.c b/drivers/rtc/interface.c
index fc0fa7577636..8cec9a02c0b8 100644
--- a/drivers/rtc/interface.c
+++ b/drivers/rtc/interface.c
@@ -227,6 +227,13 @@ int __rtc_read_alarm(struct rtc_device *rtc, struct rtc_wkalrm *alarm)
 			missing = year;
 	}
 
+	/* Can't proceed if alarm is still invalid after replacing
+	 * missing fields.
+	 */
+	err = rtc_valid_tm(&alarm->time);
+	if (err)
+		goto done;
+
 	/* with luck, no rollover is needed */
 	t_now = rtc_tm_to_time64(&now);
 	t_alm = rtc_tm_to_time64(&alarm->time);
@@ -278,9 +285,9 @@ int __rtc_read_alarm(struct rtc_device *rtc, struct rtc_wkalrm *alarm)
 		dev_warn(&rtc->dev, "alarm rollover not handled\n");
 	}
 
-done:
 	err = rtc_valid_tm(&alarm->time);
 
+done:
 	if (err) {
 		dev_warn(&rtc->dev, "invalid alarm value: %d-%d-%d %d:%d:%d\n",
 			alarm->time.tm_year + 1900, alarm->time.tm_mon + 1,
diff --git a/drivers/rtc/nvmem.c b/drivers/rtc/nvmem.c
new file mode 100644
index 000000000000..8567b4ed9ac6
--- /dev/null
+++ b/drivers/rtc/nvmem.c
@@ -0,0 +1,113 @@
+/*
+ * RTC subsystem, nvmem interface
+ *
+ * Copyright (C) 2017 Alexandre Belloni
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#include <linux/err.h>
+#include <linux/types.h>
+#include <linux/nvmem-consumer.h>
+#include <linux/rtc.h>
+#include <linux/sysfs.h>
+
+#include "rtc-core.h"
+
+/*
+ * Deprecated ABI compatibility, this should be removed at some point
+ */
+
+static const char nvram_warning[] = "Deprecated ABI, please use nvmem";
+
+static ssize_t
+rtc_nvram_read(struct file *filp, struct kobject *kobj,
+	       struct bin_attribute *attr,
+	       char *buf, loff_t off, size_t count)
+{
+	struct rtc_device *rtc = attr->private;
+
+	dev_warn_once(kobj_to_dev(kobj), nvram_warning);
+
+	return nvmem_device_read(rtc->nvmem, off, count, buf);
+}
+
+static ssize_t
+rtc_nvram_write(struct file *filp, struct kobject *kobj,
+		struct bin_attribute *attr,
+		char *buf, loff_t off, size_t count)
+{
+	struct rtc_device *rtc = attr->private;
+
+	dev_warn_once(kobj_to_dev(kobj), nvram_warning);
+
+	return nvmem_device_write(rtc->nvmem, off, count, buf);
+}
+
+static int rtc_nvram_register(struct rtc_device *rtc)
+{
+	int err;
+
+	rtc->nvram = devm_kzalloc(rtc->dev.parent,
+				sizeof(struct bin_attribute),
+				GFP_KERNEL);
+	if (!rtc->nvram)
+		return -ENOMEM;
+
+	rtc->nvram->attr.name = "nvram";
+	rtc->nvram->attr.mode = 0644;
+	rtc->nvram->private = rtc;
+
+	sysfs_bin_attr_init(rtc->nvram);
+
+	rtc->nvram->read = rtc_nvram_read;
+	rtc->nvram->write = rtc_nvram_write;
+	rtc->nvram->size = rtc->nvmem_config->size;
+
+	err = sysfs_create_bin_file(&rtc->dev.parent->kobj,
+				    rtc->nvram);
+	if (err) {
+		devm_kfree(rtc->dev.parent, rtc->nvram);
+		rtc->nvram = NULL;
+	}
+
+	return err;
+}
+
+static void rtc_nvram_unregister(struct rtc_device *rtc)
+{
+	sysfs_remove_bin_file(&rtc->dev.parent->kobj, rtc->nvram);
+}
+
+/*
+ * New ABI, uses nvmem
+ */
+void rtc_nvmem_register(struct rtc_device *rtc)
+{
+	if (!rtc->nvmem_config)
+		return;
+
+	rtc->nvmem_config->dev = &rtc->dev;
+	rtc->nvmem_config->owner = rtc->owner;
+	rtc->nvmem = nvmem_register(rtc->nvmem_config);
+	if (IS_ERR_OR_NULL(rtc->nvmem))
+		return;
+
+	/* Register the old ABI */
+	if (rtc->nvram_old_abi)
+		rtc_nvram_register(rtc);
+}
+
+void rtc_nvmem_unregister(struct rtc_device *rtc)
+{
+	if (IS_ERR_OR_NULL(rtc->nvmem))
+		return;
+
+	/* unregister the old ABI */
+	if (rtc->nvram)
+		rtc_nvram_unregister(rtc);
+
+	nvmem_unregister(rtc->nvmem);
+}
diff --git a/drivers/rtc/rtc-at91rm9200.c b/drivers/rtc/rtc-at91rm9200.c
index b60fd477778f..e221b78b6f10 100644
--- a/drivers/rtc/rtc-at91rm9200.c
+++ b/drivers/rtc/rtc-at91rm9200.c
@@ -409,6 +409,11 @@ static int __init at91_rtc_probe(struct platform_device *pdev)
 		return -ENOMEM;
 	}
 
+	rtc = devm_rtc_allocate_device(&pdev->dev);
+	if (IS_ERR(rtc))
+		return PTR_ERR(rtc);
+	platform_set_drvdata(pdev, rtc);
+
 	sclk = devm_clk_get(&pdev->dev, NULL);
 	if (IS_ERR(sclk))
 		return PTR_ERR(sclk);
@@ -441,13 +446,10 @@ static int __init at91_rtc_probe(struct platform_device *pdev)
 	if (!device_can_wakeup(&pdev->dev))
 		device_init_wakeup(&pdev->dev, 1);
 
-	rtc = devm_rtc_device_register(&pdev->dev, pdev->name,
-				&at91_rtc_ops, THIS_MODULE);
-	if (IS_ERR(rtc)) {
-		ret = PTR_ERR(rtc);
+	rtc->ops = &at91_rtc_ops;
+	ret = rtc_register_device(rtc);
+	if (ret)
 		goto err_clk;
-	}
-	platform_set_drvdata(pdev, rtc);
 
 	/* enable SECEV interrupt in order to initialize at91_rtc_upd_rdy
 	 * completion.
diff --git a/drivers/rtc/rtc-brcmstb-waketimer.c b/drivers/rtc/rtc-brcmstb-waketimer.c
new file mode 100644
index 000000000000..796ac792a381
--- /dev/null
+++ b/drivers/rtc/rtc-brcmstb-waketimer.c
@@ -0,0 +1,330 @@
+/*
+ * Copyright © 2014-2017 Broadcom
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ */
+
+#define pr_fmt(fmt)	KBUILD_MODNAME ": " fmt
+
+#include <linux/clk.h>
+#include <linux/device.h>
+#include <linux/err.h>
+#include <linux/init.h>
+#include <linux/interrupt.h>
+#include <linux/io.h>
+#include <linux/irqreturn.h>
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/of.h>
+#include <linux/platform_device.h>
+#include <linux/pm.h>
+#include <linux/pm_wakeup.h>
+#include <linux/reboot.h>
+#include <linux/rtc.h>
+#include <linux/stat.h>
+#include <linux/suspend.h>
+
+struct brcmstb_waketmr {
+	struct rtc_device *rtc;
+	struct device *dev;
+	void __iomem *base;
+	int irq;
+	struct notifier_block reboot_notifier;
+	struct clk *clk;
+	u32 rate;
+};
+
+#define BRCMSTB_WKTMR_EVENT		0x00
+#define BRCMSTB_WKTMR_COUNTER		0x04
+#define BRCMSTB_WKTMR_ALARM		0x08
+#define BRCMSTB_WKTMR_PRESCALER		0x0C
+#define BRCMSTB_WKTMR_PRESCALER_VAL	0x10
+
+#define BRCMSTB_WKTMR_DEFAULT_FREQ	27000000
+
+static inline void brcmstb_waketmr_clear_alarm(struct brcmstb_waketmr *timer)
+{
+	writel_relaxed(1, timer->base + BRCMSTB_WKTMR_EVENT);
+	(void)readl_relaxed(timer->base + BRCMSTB_WKTMR_EVENT);
+}
+
+static void brcmstb_waketmr_set_alarm(struct brcmstb_waketmr *timer,
+				      unsigned int secs)
+{
+	brcmstb_waketmr_clear_alarm(timer);
+
+	writel_relaxed(secs + 1, timer->base + BRCMSTB_WKTMR_ALARM);
+}
+
+static irqreturn_t brcmstb_waketmr_irq(int irq, void *data)
+{
+	struct brcmstb_waketmr *timer = data;
+
+	pm_wakeup_event(timer->dev, 0);
+
+	return IRQ_HANDLED;
+}
+
+struct wktmr_time {
+	u32 sec;
+	u32 pre;
+};
+
+static void wktmr_read(struct brcmstb_waketmr *timer,
+		       struct wktmr_time *t)
+{
+	u32 tmp;
+
+	do {
+		t->sec = readl_relaxed(timer->base + BRCMSTB_WKTMR_COUNTER);
+		tmp = readl_relaxed(timer->base + BRCMSTB_WKTMR_PRESCALER_VAL);
+	} while (tmp >= timer->rate);
+
+	t->pre = timer->rate - tmp;
+}
+
+static int brcmstb_waketmr_prepare_suspend(struct brcmstb_waketmr *timer)
+{
+	struct device *dev = timer->dev;
+	int ret = 0;
+
+	if (device_may_wakeup(dev)) {
+		ret = enable_irq_wake(timer->irq);
+		if (ret) {
+			dev_err(dev, "failed to enable wake-up interrupt\n");
+			return ret;
+		}
+	}
+
+	return ret;
+}
+
+/* If enabled as a wakeup-source, arm the timer when powering off */
+static int brcmstb_waketmr_reboot(struct notifier_block *nb,
+		unsigned long action, void *data)
+{
+	struct brcmstb_waketmr *timer;
+
+	timer = container_of(nb, struct brcmstb_waketmr, reboot_notifier);
+
+	/* Set timer for cold boot */
+	if (action == SYS_POWER_OFF)
+		brcmstb_waketmr_prepare_suspend(timer);
+
+	return NOTIFY_DONE;
+}
+
+static int brcmstb_waketmr_gettime(struct device *dev,
+				   struct rtc_time *tm)
+{
+	struct brcmstb_waketmr *timer = dev_get_drvdata(dev);
+	struct wktmr_time now;
+
+	wktmr_read(timer, &now);
+
+	rtc_time_to_tm(now.sec, tm);
+
+	return 0;
+}
+
+static int brcmstb_waketmr_settime(struct device *dev,
+				   struct rtc_time *tm)
+{
+	struct brcmstb_waketmr *timer = dev_get_drvdata(dev);
+	time64_t sec;
+
+	sec = rtc_tm_to_time64(tm);
+
+	if (sec > U32_MAX || sec < 0)
+		return -EINVAL;
+
+	writel_relaxed(sec, timer->base + BRCMSTB_WKTMR_COUNTER);
+
+	return 0;
+}
+
+static int brcmstb_waketmr_getalarm(struct device *dev,
+				    struct rtc_wkalrm *alarm)
+{
+	struct brcmstb_waketmr *timer = dev_get_drvdata(dev);
+	time64_t sec;
+	u32 reg;
+
+	sec = readl_relaxed(timer->base + BRCMSTB_WKTMR_ALARM);
+	if (sec != 0) {
+		/* Alarm is enabled */
+		alarm->enabled = 1;
+		rtc_time64_to_tm(sec, &alarm->time);
+	}
+
+	reg = readl_relaxed(timer->base + BRCMSTB_WKTMR_EVENT);
+	alarm->pending = !!(reg & 1);
+
+	return 0;
+}
+
+static int brcmstb_waketmr_setalarm(struct device *dev,
+				     struct rtc_wkalrm *alarm)
+{
+	struct brcmstb_waketmr *timer = dev_get_drvdata(dev);
+	time64_t sec;
+
+	if (alarm->enabled)
+		sec = rtc_tm_to_time64(&alarm->time);
+	else
+		sec = 0;
+
+	if (sec > U32_MAX || sec < 0)
+		return -EINVAL;
+
+	brcmstb_waketmr_set_alarm(timer, sec);
+
+	return 0;
+}
+
+/*
+ * Does not do much but keep the RTC class happy. We always support
+ * alarms.
+ */
+static int brcmstb_waketmr_alarm_enable(struct device *dev,
+					unsigned int enabled)
+{
+	return 0;
+}
+
+static const struct rtc_class_ops brcmstb_waketmr_ops = {
+	.read_time	= brcmstb_waketmr_gettime,
+	.set_time	= brcmstb_waketmr_settime,
+	.read_alarm	= brcmstb_waketmr_getalarm,
+	.set_alarm	= brcmstb_waketmr_setalarm,
+	.alarm_irq_enable = brcmstb_waketmr_alarm_enable,
+};
+
+static int brcmstb_waketmr_probe(struct platform_device *pdev)
+{
+	struct device *dev = &pdev->dev;
+	struct brcmstb_waketmr *timer;
+	struct resource *res;
+	int ret;
+
+	timer = devm_kzalloc(dev, sizeof(*timer), GFP_KERNEL);
+	if (!timer)
+		return -ENOMEM;
+
+	platform_set_drvdata(pdev, timer);
+	timer->dev = dev;
+
+	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+	timer->base = devm_ioremap_resource(dev, res);
+	if (IS_ERR(timer->base))
+		return PTR_ERR(timer->base);
+
+	/*
+	 * Set wakeup capability before requesting wakeup interrupt, so we can
+	 * process boot-time "wakeups" (e.g., from S5 soft-off)
+	 */
+	device_set_wakeup_capable(dev, true);
+	device_wakeup_enable(dev);
+
+	timer->irq = platform_get_irq(pdev, 0);
+	if (timer->irq < 0)
+		return -ENODEV;
+
+	timer->clk = devm_clk_get(dev, NULL);
+	if (!IS_ERR(timer->clk)) {
+		ret = clk_prepare_enable(timer->clk);
+		if (ret)
+			return ret;
+		timer->rate = clk_get_rate(timer->clk);
+		if (!timer->rate)
+			timer->rate = BRCMSTB_WKTMR_DEFAULT_FREQ;
+	} else {
+		timer->rate = BRCMSTB_WKTMR_DEFAULT_FREQ;
+		timer->clk = NULL;
+	}
+
+	ret = devm_request_irq(dev, timer->irq, brcmstb_waketmr_irq, 0,
+			       "brcmstb-waketimer", timer);
+	if (ret < 0)
+		return ret;
+
+	timer->reboot_notifier.notifier_call = brcmstb_waketmr_reboot;
+	register_reboot_notifier(&timer->reboot_notifier);
+
+	timer->rtc = rtc_device_register("brcmstb-waketmr", dev,
+					 &brcmstb_waketmr_ops, THIS_MODULE);
+	if (IS_ERR(timer->rtc)) {
+		dev_err(dev, "unable to register device\n");
+		unregister_reboot_notifier(&timer->reboot_notifier);
+		return PTR_ERR(timer->rtc);
+	}
+
+	dev_info(dev, "registered, with irq %d\n", timer->irq);
+
+	return ret;
+}
+
+static int brcmstb_waketmr_remove(struct platform_device *pdev)
+{
+	struct brcmstb_waketmr *timer = dev_get_drvdata(&pdev->dev);
+
+	unregister_reboot_notifier(&timer->reboot_notifier);
+	rtc_device_unregister(timer->rtc);
+
+	return 0;
+}
+
+#ifdef CONFIG_PM_SLEEP
+static int brcmstb_waketmr_suspend(struct device *dev)
+{
+	struct brcmstb_waketmr *timer = dev_get_drvdata(dev);
+
+	return brcmstb_waketmr_prepare_suspend(timer);
+}
+
+static int brcmstb_waketmr_resume(struct device *dev)
+{
+	struct brcmstb_waketmr *timer = dev_get_drvdata(dev);
+	int ret;
+
+	if (!device_may_wakeup(dev))
+		return 0;
+
+	ret = disable_irq_wake(timer->irq);
+
+	brcmstb_waketmr_clear_alarm(timer);
+
+	return ret;
+}
+#endif /* CONFIG_PM_SLEEP */
+
+static SIMPLE_DEV_PM_OPS(brcmstb_waketmr_pm_ops,
+			 brcmstb_waketmr_suspend, brcmstb_waketmr_resume);
+
+static const struct of_device_id brcmstb_waketmr_of_match[] = {
+	{ .compatible = "brcm,brcmstb-waketimer" },
+	{ /* sentinel */ },
+};
+
+static struct platform_driver brcmstb_waketmr_driver = {
+	.probe			= brcmstb_waketmr_probe,
+	.remove			= brcmstb_waketmr_remove,
+	.driver = {
+		.name		= "brcmstb-waketimer",
+		.pm		= &brcmstb_waketmr_pm_ops,
+		.of_match_table	= of_match_ptr(brcmstb_waketmr_of_match),
+	}
+};
+module_platform_driver(brcmstb_waketmr_driver);
+
+MODULE_LICENSE("GPL v2");
+MODULE_AUTHOR("Brian Norris");
+MODULE_AUTHOR("Markus Mayer");
+MODULE_DESCRIPTION("Wake-up timer driver for STB chips");
diff --git a/drivers/rtc/rtc-core.h b/drivers/rtc/rtc-core.h
index 7a4ed2f7c7d7..ecab76a3207c 100644
--- a/drivers/rtc/rtc-core.h
+++ b/drivers/rtc/rtc-core.h
@@ -45,3 +45,11 @@ static inline const struct attribute_group **rtc_get_dev_attribute_groups(void)
 	return NULL;
 }
 #endif
+
+#ifdef CONFIG_RTC_NVMEM
+void rtc_nvmem_register(struct rtc_device *rtc);
+void rtc_nvmem_unregister(struct rtc_device *rtc);
+#else
+static inline void rtc_nvmem_register(struct rtc_device *rtc) {}
+static inline void rtc_nvmem_unregister(struct rtc_device *rtc) {}
+#endif
diff --git a/drivers/rtc/rtc-dev.c b/drivers/rtc/rtc-dev.c
index e81a8711fea7..794bc4fa4937 100644
--- a/drivers/rtc/rtc-dev.c
+++ b/drivers/rtc/rtc-dev.c
@@ -464,7 +464,7 @@ void rtc_dev_prepare(struct rtc_device *rtc)
 		return;
 
 	if (rtc->id >= RTC_DEV_MAX) {
-		dev_dbg(&rtc->dev, "%s: too many RTC devices\n", rtc->name);
+		dev_dbg(&rtc->dev, "too many RTC devices\n");
 		return;
 	}
 
diff --git a/drivers/rtc/rtc-ds1307.c b/drivers/rtc/rtc-ds1307.c
index 77339b3d50a1..4b43aa62fbc7 100644
--- a/drivers/rtc/rtc-ds1307.c
+++ b/drivers/rtc/rtc-ds1307.c
@@ -24,6 +24,7 @@
 #include <linux/hwmon.h>
 #include <linux/hwmon-sysfs.h>
 #include <linux/clk-provider.h>
+#include <linux/regmap.h>
 
 /*
  * We can't determine type by probing, but if we expect pre-Linux code
@@ -33,6 +34,7 @@
  */
 enum ds_type {
 	ds_1307,
+	ds_1308,
 	ds_1337,
 	ds_1338,
 	ds_1339,
@@ -43,6 +45,7 @@ enum ds_type {
 	m41t00,
 	mcp794xx,
 	rx_8025,
+	rx_8130,
 	last_ds_type /* always last */
 	/* rs5c372 too?  different address... */
 };
@@ -115,17 +118,16 @@ struct ds1307 {
 	u8			offset; /* register's offset */
 	u8			regs[11];
 	u16			nvram_offset;
-	struct bin_attribute	*nvram;
+	struct nvmem_config	nvmem_cfg;
 	enum ds_type		type;
 	unsigned long		flags;
 #define HAS_NVRAM	0		/* bit 0 == sysfs file active */
 #define HAS_ALARM	1		/* bit 1 == irq claimed */
-	struct i2c_client	*client;
+	struct device		*dev;
+	struct regmap		*regmap;
+	const char		*name;
+	int			irq;
 	struct rtc_device	*rtc;
-	s32 (*read_block_data)(const struct i2c_client *client, u8 command,
-			       u8 length, u8 *values);
-	s32 (*write_block_data)(const struct i2c_client *client, u8 command,
-				u8 length, const u8 *values);
 #ifdef CONFIG_COMMON_CLK
 	struct clk_hw		clks[2];
 #endif
@@ -135,21 +137,30 @@ struct chip_desc {
 	unsigned		alarm:1;
 	u16			nvram_offset;
 	u16			nvram_size;
+	u8			century_reg;
+	u8			century_enable_bit;
+	u8			century_bit;
 	u16			trickle_charger_reg;
 	u8			trickle_charger_setup;
-	u8			(*do_trickle_setup)(struct i2c_client *, uint32_t, bool);
+	u8			(*do_trickle_setup)(struct ds1307 *, uint32_t,
+						    bool);
 };
 
-static u8 do_trickle_setup_ds1339(struct i2c_client *,
-				  uint32_t ohms, bool diode);
+static u8 do_trickle_setup_ds1339(struct ds1307 *, uint32_t ohms, bool diode);
 
 static struct chip_desc chips[last_ds_type] = {
 	[ds_1307] = {
 		.nvram_offset	= 8,
 		.nvram_size	= 56,
 	},
+	[ds_1308] = {
+		.nvram_offset	= 8,
+		.nvram_size	= 56,
+	},
 	[ds_1337] = {
 		.alarm		= 1,
+		.century_reg	= DS1307_REG_MONTH,
+		.century_bit	= DS1337_BIT_CENTURY,
 	},
 	[ds_1338] = {
 		.nvram_offset	= 8,
@@ -157,10 +168,15 @@ static struct chip_desc chips[last_ds_type] = {
 	},
 	[ds_1339] = {
 		.alarm		= 1,
+		.century_reg	= DS1307_REG_MONTH,
+		.century_bit	= DS1337_BIT_CENTURY,
 		.trickle_charger_reg = 0x10,
 		.do_trickle_setup = &do_trickle_setup_ds1339,
 	},
 	[ds_1340] = {
+		.century_reg	= DS1307_REG_HOUR,
+		.century_enable_bit = DS1340_BIT_CENTURY_EN,
+		.century_bit	= DS1340_BIT_CENTURY,
 		.trickle_charger_reg = 0x08,
 	},
 	[ds_1388] = {
@@ -168,6 +184,14 @@ static struct chip_desc chips[last_ds_type] = {
 	},
 	[ds_3231] = {
 		.alarm		= 1,
+		.century_reg	= DS1307_REG_MONTH,
+		.century_bit	= DS1337_BIT_CENTURY,
+	},
+	[rx_8130] = {
+		.alarm		= 1,
+		/* this is battery backed SRAM */
+		.nvram_offset	= 0x20,
+		.nvram_size	= 4,	/* 32bit (4 word x 8 bit) */
 	},
 	[mcp794xx] = {
 		.alarm		= 1,
@@ -179,6 +203,7 @@ static struct chip_desc chips[last_ds_type] = {
 
 static const struct i2c_device_id ds1307_id[] = {
 	{ "ds1307", ds_1307 },
+	{ "ds1308", ds_1308 },
 	{ "ds1337", ds_1337 },
 	{ "ds1338", ds_1338 },
 	{ "ds1339", ds_1339 },
@@ -192,6 +217,7 @@ static const struct i2c_device_id ds1307_id[] = {
 	{ "pt7c4338", ds_1307 },
 	{ "rx8025", rx_8025 },
 	{ "isl12057", ds_1337 },
+	{ "rx8130", rx_8130 },
 	{ }
 };
 MODULE_DEVICE_TABLE(i2c, ds1307_id);
@@ -203,6 +229,10 @@ static const struct of_device_id ds1307_of_match[] = {
 		.data = (void *)ds_1307
 	},
 	{
+		.compatible = "dallas,ds1308",
+		.data = (void *)ds_1308
+	},
+	{
 		.compatible = "dallas,ds1337",
 		.data = (void *)ds_1337
 	},
@@ -262,6 +292,7 @@ MODULE_DEVICE_TABLE(of, ds1307_of_match);
 #ifdef CONFIG_ACPI
 static const struct acpi_device_id ds1307_acpi_ids[] = {
 	{ .id = "DS1307", .driver_data = ds_1307 },
+	{ .id = "DS1308", .driver_data = ds_1308 },
 	{ .id = "DS1337", .driver_data = ds_1337 },
 	{ .id = "DS1338", .driver_data = ds_1338 },
 	{ .id = "DS1339", .driver_data = ds_1339 },
@@ -280,136 +311,6 @@ static const struct acpi_device_id ds1307_acpi_ids[] = {
 MODULE_DEVICE_TABLE(acpi, ds1307_acpi_ids);
 #endif
 
-/*----------------------------------------------------------------------*/
-
-#define BLOCK_DATA_MAX_TRIES 10
-
-static s32 ds1307_read_block_data_once(const struct i2c_client *client,
-				       u8 command, u8 length, u8 *values)
-{
-	s32 i, data;
-
-	for (i = 0; i < length; i++) {
-		data = i2c_smbus_read_byte_data(client, command + i);
-		if (data < 0)
-			return data;
-		values[i] = data;
-	}
-	return i;
-}
-
-static s32 ds1307_read_block_data(const struct i2c_client *client, u8 command,
-				  u8 length, u8 *values)
-{
-	u8 oldvalues[255];
-	s32 ret;
-	int tries = 0;
-
-	dev_dbg(&client->dev, "ds1307_read_block_data (length=%d)\n", length);
-	ret = ds1307_read_block_data_once(client, command, length, values);
-	if (ret < 0)
-		return ret;
-	do {
-		if (++tries > BLOCK_DATA_MAX_TRIES) {
-			dev_err(&client->dev,
-				"ds1307_read_block_data failed\n");
-			return -EIO;
-		}
-		memcpy(oldvalues, values, length);
-		ret = ds1307_read_block_data_once(client, command, length,
-						  values);
-		if (ret < 0)
-			return ret;
-	} while (memcmp(oldvalues, values, length));
-	return length;
-}
-
-static s32 ds1307_write_block_data(const struct i2c_client *client, u8 command,
-				   u8 length, const u8 *values)
-{
-	u8 currvalues[255];
-	int tries = 0;
-
-	dev_dbg(&client->dev, "ds1307_write_block_data (length=%d)\n", length);
-	do {
-		s32 i, ret;
-
-		if (++tries > BLOCK_DATA_MAX_TRIES) {
-			dev_err(&client->dev,
-				"ds1307_write_block_data failed\n");
-			return -EIO;
-		}
-		for (i = 0; i < length; i++) {
-			ret = i2c_smbus_write_byte_data(client, command + i,
-							values[i]);
-			if (ret < 0)
-				return ret;
-		}
-		ret = ds1307_read_block_data_once(client, command, length,
-						  currvalues);
-		if (ret < 0)
-			return ret;
-	} while (memcmp(currvalues, values, length));
-	return length;
-}
-
-/*----------------------------------------------------------------------*/
-
-/* These RTC devices are not designed to be connected to a SMbus adapter.
-   SMbus limits block operations length to 32 bytes, whereas it's not
-   limited on I2C buses. As a result, accesses may exceed 32 bytes;
-   in that case, split them into smaller blocks */
-
-static s32 ds1307_native_smbus_write_block_data(const struct i2c_client *client,
-				u8 command, u8 length, const u8 *values)
-{
-	u8 suboffset = 0;
-
-	if (length <= I2C_SMBUS_BLOCK_MAX) {
-		s32 retval = i2c_smbus_write_i2c_block_data(client,
-					command, length, values);
-		if (retval < 0)
-			return retval;
-		return length;
-	}
-
-	while (suboffset < length) {
-		s32 retval = i2c_smbus_write_i2c_block_data(client,
-				command + suboffset,
-				min(I2C_SMBUS_BLOCK_MAX, length - suboffset),
-				values + suboffset);
-		if (retval < 0)
-			return retval;
-
-		suboffset += I2C_SMBUS_BLOCK_MAX;
-	}
-	return length;
-}
-
-static s32 ds1307_native_smbus_read_block_data(const struct i2c_client *client,
-				u8 command, u8 length, u8 *values)
-{
-	u8 suboffset = 0;
-
-	if (length <= I2C_SMBUS_BLOCK_MAX)
-		return i2c_smbus_read_i2c_block_data(client,
-					command, length, values);
-
-	while (suboffset < length) {
-		s32 retval = i2c_smbus_read_i2c_block_data(client,
-				command + suboffset,
-				min(I2C_SMBUS_BLOCK_MAX, length - suboffset),
-				values + suboffset);
-		if (retval < 0)
-			return retval;
-
-		suboffset += I2C_SMBUS_BLOCK_MAX;
-	}
-	return length;
-}
-
-/*----------------------------------------------------------------------*/
-
 /*
  * The ds1337 and ds1339 both have two alarms, but we only use the first
  * one (with a "seconds" field).  For ds1337 we expect nINTA is our alarm
@@ -417,27 +318,24 @@ static s32 ds1307_native_smbus_read_block_data(const struct i2c_client *client,
  */
 static irqreturn_t ds1307_irq(int irq, void *dev_id)
 {
-	struct i2c_client	*client = dev_id;
-	struct ds1307		*ds1307 = i2c_get_clientdata(client);
+	struct ds1307		*ds1307 = dev_id;
 	struct mutex		*lock = &ds1307->rtc->ops_lock;
-	int			stat, control;
+	int			stat, ret;
 
 	mutex_lock(lock);
-	stat = i2c_smbus_read_byte_data(client, DS1337_REG_STATUS);
-	if (stat < 0)
+	ret = regmap_read(ds1307->regmap, DS1337_REG_STATUS, &stat);
+	if (ret)
 		goto out;
 
 	if (stat & DS1337_BIT_A1I) {
 		stat &= ~DS1337_BIT_A1I;
-		i2c_smbus_write_byte_data(client, DS1337_REG_STATUS, stat);
+		regmap_write(ds1307->regmap, DS1337_REG_STATUS, stat);
 
-		control = i2c_smbus_read_byte_data(client, DS1337_REG_CONTROL);
-		if (control < 0)
+		ret = regmap_update_bits(ds1307->regmap, DS1337_REG_CONTROL,
+					 DS1337_BIT_A1IE, 0);
+		if (ret)
 			goto out;
 
-		control &= ~DS1337_BIT_A1IE;
-		i2c_smbus_write_byte_data(client, DS1337_REG_CONTROL, control);
-
 		rtc_update_irq(ds1307->rtc, 1, RTC_AF | RTC_IRQF);
 	}
 
@@ -452,14 +350,14 @@ out:
 static int ds1307_get_time(struct device *dev, struct rtc_time *t)
 {
 	struct ds1307	*ds1307 = dev_get_drvdata(dev);
-	int		tmp;
+	int		tmp, ret;
+	const struct chip_desc *chip = &chips[ds1307->type];
 
 	/* read the RTC date and time registers all at once */
-	tmp = ds1307->read_block_data(ds1307->client,
-		ds1307->offset, 7, ds1307->regs);
-	if (tmp != 7) {
-		dev_err(dev, "%s error %d\n", "read", tmp);
-		return -EIO;
+	ret = regmap_bulk_read(ds1307->regmap, ds1307->offset, ds1307->regs, 7);
+	if (ret) {
+		dev_err(dev, "%s error %d\n", "read", ret);
+		return ret;
 	}
 
 	dev_dbg(dev, "%s: %7ph\n", "read", ds1307->regs);
@@ -481,22 +379,9 @@ static int ds1307_get_time(struct device *dev, struct rtc_time *t)
 	t->tm_mon = bcd2bin(tmp) - 1;
 	t->tm_year = bcd2bin(ds1307->regs[DS1307_REG_YEAR]) + 100;
 
-#ifdef CONFIG_RTC_DRV_DS1307_CENTURY
-	switch (ds1307->type) {
-	case ds_1337:
-	case ds_1339:
-	case ds_3231:
-		if (ds1307->regs[DS1307_REG_MONTH] & DS1337_BIT_CENTURY)
-			t->tm_year += 100;
-		break;
-	case ds_1340:
-		if (ds1307->regs[DS1307_REG_HOUR] & DS1340_BIT_CENTURY)
-			t->tm_year += 100;
-		break;
-	default:
-		break;
-	}
-#endif
+	if (ds1307->regs[chip->century_reg] & chip->century_bit &&
+	    IS_ENABLED(CONFIG_RTC_DRV_DS1307_CENTURY))
+		t->tm_year += 100;
 
 	dev_dbg(dev, "%s secs=%d, mins=%d, "
 		"hours=%d, mday=%d, mon=%d, year=%d, wday=%d\n",
@@ -511,6 +396,7 @@ static int ds1307_get_time(struct device *dev, struct rtc_time *t)
 static int ds1307_set_time(struct device *dev, struct rtc_time *t)
 {
 	struct ds1307	*ds1307 = dev_get_drvdata(dev);
+	const struct chip_desc *chip = &chips[ds1307->type];
 	int		result;
 	int		tmp;
 	u8		*buf = ds1307->regs;
@@ -521,24 +407,14 @@ static int ds1307_set_time(struct device *dev, struct rtc_time *t)
 		t->tm_hour, t->tm_mday,
 		t->tm_mon, t->tm_year, t->tm_wday);
 
-#ifdef CONFIG_RTC_DRV_DS1307_CENTURY
 	if (t->tm_year < 100)
 		return -EINVAL;
 
-	switch (ds1307->type) {
-	case ds_1337:
-	case ds_1339:
-	case ds_3231:
-	case ds_1340:
-		if (t->tm_year > 299)
-			return -EINVAL;
-	default:
-		if (t->tm_year > 199)
-			return -EINVAL;
-		break;
-	}
+#ifdef CONFIG_RTC_DRV_DS1307_CENTURY
+	if (t->tm_year > (chip->century_bit ? 299 : 199))
+		return -EINVAL;
 #else
-	if (t->tm_year < 100 || t->tm_year > 199)
+	if (t->tm_year > 199)
 		return -EINVAL;
 #endif
 
@@ -553,19 +429,12 @@ static int ds1307_set_time(struct device *dev, struct rtc_time *t)
 	tmp = t->tm_year - 100;
 	buf[DS1307_REG_YEAR] = bin2bcd(tmp);
 
-	switch (ds1307->type) {
-	case ds_1337:
-	case ds_1339:
-	case ds_3231:
-		if (t->tm_year > 199)
-			buf[DS1307_REG_MONTH] |= DS1337_BIT_CENTURY;
-		break;
-	case ds_1340:
-		buf[DS1307_REG_HOUR] |= DS1340_BIT_CENTURY_EN;
-		if (t->tm_year > 199)
-			buf[DS1307_REG_HOUR] |= DS1340_BIT_CENTURY;
-		break;
-	case mcp794xx:
+	if (chip->century_enable_bit)
+		buf[chip->century_reg] |= chip->century_enable_bit;
+	if (t->tm_year > 199 && chip->century_bit)
+		buf[chip->century_reg] |= chip->century_bit;
+
+	if (ds1307->type == mcp794xx) {
 		/*
 		 * these bits were cleared when preparing the date/time
 		 * values and need to be set again before writing the
@@ -573,16 +442,12 @@ static int ds1307_set_time(struct device *dev, struct rtc_time *t)
 		 */
 		buf[DS1307_REG_SECS] |= MCP794XX_BIT_ST;
 		buf[DS1307_REG_WDAY] |= MCP794XX_BIT_VBATEN;
-		break;
-	default:
-		break;
 	}
 
 	dev_dbg(dev, "%s: %7ph\n", "write", buf);
 
-	result = ds1307->write_block_data(ds1307->client,
-		ds1307->offset, 7, buf);
-	if (result < 0) {
+	result = regmap_bulk_write(ds1307->regmap, ds1307->offset, buf, 7);
+	if (result) {
 		dev_err(dev, "%s error %d\n", "write", result);
 		return result;
 	}
@@ -591,19 +456,18 @@ static int ds1307_set_time(struct device *dev, struct rtc_time *t)
 
 static int ds1337_read_alarm(struct device *dev, struct rtc_wkalrm *t)
 {
-	struct i2c_client       *client = to_i2c_client(dev);
-	struct ds1307		*ds1307 = i2c_get_clientdata(client);
+	struct ds1307		*ds1307 = dev_get_drvdata(dev);
 	int			ret;
 
 	if (!test_bit(HAS_ALARM, &ds1307->flags))
 		return -EINVAL;
 
 	/* read all ALARM1, ALARM2, and status registers at once */
-	ret = ds1307->read_block_data(client,
-			DS1339_REG_ALARM1_SECS, 9, ds1307->regs);
-	if (ret != 9) {
+	ret = regmap_bulk_read(ds1307->regmap, DS1339_REG_ALARM1_SECS,
+			       ds1307->regs, 9);
+	if (ret) {
 		dev_err(dev, "%s error %d\n", "alarm read", ret);
-		return -EIO;
+		return ret;
 	}
 
 	dev_dbg(dev, "%s: %4ph, %3ph, %2ph\n", "alarm read",
@@ -633,8 +497,7 @@ static int ds1337_read_alarm(struct device *dev, struct rtc_wkalrm *t)
 
 static int ds1337_set_alarm(struct device *dev, struct rtc_wkalrm *t)
 {
-	struct i2c_client	*client = to_i2c_client(dev);
-	struct ds1307		*ds1307 = i2c_get_clientdata(client);
+	struct ds1307		*ds1307 = dev_get_drvdata(dev);
 	unsigned char		*buf = ds1307->regs;
 	u8			control, status;
 	int			ret;
@@ -649,11 +512,10 @@ static int ds1337_set_alarm(struct device *dev, struct rtc_wkalrm *t)
 		t->enabled, t->pending);
 
 	/* read current status of both alarms and the chip */
-	ret = ds1307->read_block_data(client,
-			DS1339_REG_ALARM1_SECS, 9, buf);
-	if (ret != 9) {
+	ret = regmap_bulk_read(ds1307->regmap, DS1339_REG_ALARM1_SECS, buf, 9);
+	if (ret) {
 		dev_err(dev, "%s error %d\n", "alarm write", ret);
-		return -EIO;
+		return ret;
 	}
 	control = ds1307->regs[7];
 	status = ds1307->regs[8];
@@ -676,9 +538,8 @@ static int ds1337_set_alarm(struct device *dev, struct rtc_wkalrm *t)
 	buf[7] = control & ~(DS1337_BIT_A1IE | DS1337_BIT_A2IE);
 	buf[8] = status & ~(DS1337_BIT_A1I | DS1337_BIT_A2I);
 
-	ret = ds1307->write_block_data(client,
-			DS1339_REG_ALARM1_SECS, 9, buf);
-	if (ret < 0) {
+	ret = regmap_bulk_write(ds1307->regmap, DS1339_REG_ALARM1_SECS, buf, 9);
+	if (ret) {
 		dev_err(dev, "can't set alarm time\n");
 		return ret;
 	}
@@ -687,7 +548,7 @@ static int ds1337_set_alarm(struct device *dev, struct rtc_wkalrm *t)
 	if (t->enabled) {
 		dev_dbg(dev, "alarm IRQ armed\n");
 		buf[7] |= DS1337_BIT_A1IE;	/* only ALARM1 is used */
-		i2c_smbus_write_byte_data(client, DS1337_REG_CONTROL, buf[7]);
+		regmap_write(ds1307->regmap, DS1337_REG_CONTROL, buf[7]);
 	}
 
 	return 0;
@@ -695,35 +556,181 @@ static int ds1337_set_alarm(struct device *dev, struct rtc_wkalrm *t)
 
 static int ds1307_alarm_irq_enable(struct device *dev, unsigned int enabled)
 {
-	struct i2c_client	*client = to_i2c_client(dev);
-	struct ds1307		*ds1307 = i2c_get_clientdata(client);
-	int			ret;
+	struct ds1307		*ds1307 = dev_get_drvdata(dev);
 
 	if (!test_bit(HAS_ALARM, &ds1307->flags))
 		return -ENOTTY;
 
-	ret = i2c_smbus_read_byte_data(client, DS1337_REG_CONTROL);
+	return regmap_update_bits(ds1307->regmap, DS1337_REG_CONTROL,
+				  DS1337_BIT_A1IE,
+				  enabled ? DS1337_BIT_A1IE : 0);
+}
+
+static const struct rtc_class_ops ds13xx_rtc_ops = {
+	.read_time	= ds1307_get_time,
+	.set_time	= ds1307_set_time,
+	.read_alarm	= ds1337_read_alarm,
+	.set_alarm	= ds1337_set_alarm,
+	.alarm_irq_enable = ds1307_alarm_irq_enable,
+};
+
+/*----------------------------------------------------------------------*/
+
+/*
+ * Alarm support for rx8130 devices.
+ */
+
+#define RX8130_REG_ALARM_MIN		0x07
+#define RX8130_REG_ALARM_HOUR		0x08
+#define RX8130_REG_ALARM_WEEK_OR_DAY	0x09
+#define RX8130_REG_EXTENSION		0x0c
+#define RX8130_REG_EXTENSION_WADA	(1 << 3)
+#define RX8130_REG_FLAG			0x0d
+#define RX8130_REG_FLAG_AF		(1 << 3)
+#define RX8130_REG_CONTROL0		0x0e
+#define RX8130_REG_CONTROL0_AIE		(1 << 3)
+
+static irqreturn_t rx8130_irq(int irq, void *dev_id)
+{
+	struct ds1307           *ds1307 = dev_id;
+	struct mutex            *lock = &ds1307->rtc->ops_lock;
+	u8 ctl[3];
+	int ret;
+
+	mutex_lock(lock);
+
+	/* Read control registers. */
+	ret = regmap_bulk_read(ds1307->regmap, RX8130_REG_EXTENSION, ctl, 3);
 	if (ret < 0)
-		return ret;
+		goto out;
+	if (!(ctl[1] & RX8130_REG_FLAG_AF))
+		goto out;
+	ctl[1] &= ~RX8130_REG_FLAG_AF;
+	ctl[2] &= ~RX8130_REG_CONTROL0_AIE;
 
-	if (enabled)
-		ret |= DS1337_BIT_A1IE;
-	else
-		ret &= ~DS1337_BIT_A1IE;
+	ret = regmap_bulk_write(ds1307->regmap, RX8130_REG_EXTENSION, ctl, 3);
+	if (ret < 0)
+		goto out;
+
+	rtc_update_irq(ds1307->rtc, 1, RTC_AF | RTC_IRQF);
+
+out:
+	mutex_unlock(lock);
+
+	return IRQ_HANDLED;
+}
 
-	ret = i2c_smbus_write_byte_data(client, DS1337_REG_CONTROL, ret);
+static int rx8130_read_alarm(struct device *dev, struct rtc_wkalrm *t)
+{
+	struct ds1307 *ds1307 = dev_get_drvdata(dev);
+	u8 ald[3], ctl[3];
+	int ret;
+
+	if (!test_bit(HAS_ALARM, &ds1307->flags))
+		return -EINVAL;
+
+	/* Read alarm registers. */
+	ret = regmap_bulk_read(ds1307->regmap, RX8130_REG_ALARM_MIN, ald, 3);
 	if (ret < 0)
 		return ret;
 
+	/* Read control registers. */
+	ret = regmap_bulk_read(ds1307->regmap, RX8130_REG_EXTENSION, ctl, 3);
+	if (ret < 0)
+		return ret;
+
+	t->enabled = !!(ctl[2] & RX8130_REG_CONTROL0_AIE);
+	t->pending = !!(ctl[1] & RX8130_REG_FLAG_AF);
+
+	/* Report alarm 0 time assuming 24-hour and day-of-month modes. */
+	t->time.tm_sec = -1;
+	t->time.tm_min = bcd2bin(ald[0] & 0x7f);
+	t->time.tm_hour = bcd2bin(ald[1] & 0x7f);
+	t->time.tm_wday = -1;
+	t->time.tm_mday = bcd2bin(ald[2] & 0x7f);
+	t->time.tm_mon = -1;
+	t->time.tm_year = -1;
+	t->time.tm_yday = -1;
+	t->time.tm_isdst = -1;
+
+	dev_dbg(dev, "%s, sec=%d min=%d hour=%d wday=%d mday=%d mon=%d enabled=%d\n",
+		__func__, t->time.tm_sec, t->time.tm_min, t->time.tm_hour,
+		t->time.tm_wday, t->time.tm_mday, t->time.tm_mon, t->enabled);
+
 	return 0;
 }
 
-static const struct rtc_class_ops ds13xx_rtc_ops = {
+static int rx8130_set_alarm(struct device *dev, struct rtc_wkalrm *t)
+{
+	struct ds1307 *ds1307 = dev_get_drvdata(dev);
+	u8 ald[3], ctl[3];
+	int ret;
+
+	if (!test_bit(HAS_ALARM, &ds1307->flags))
+		return -EINVAL;
+
+	dev_dbg(dev, "%s, sec=%d min=%d hour=%d wday=%d mday=%d mon=%d "
+		"enabled=%d pending=%d\n", __func__,
+		t->time.tm_sec, t->time.tm_min, t->time.tm_hour,
+		t->time.tm_wday, t->time.tm_mday, t->time.tm_mon,
+		t->enabled, t->pending);
+
+	/* Read control registers. */
+	ret = regmap_bulk_read(ds1307->regmap, RX8130_REG_EXTENSION, ctl, 3);
+	if (ret < 0)
+		return ret;
+
+	ctl[0] &= ~RX8130_REG_EXTENSION_WADA;
+	ctl[1] |= RX8130_REG_FLAG_AF;
+	ctl[2] &= ~RX8130_REG_CONTROL0_AIE;
+
+	ret = regmap_bulk_write(ds1307->regmap, RX8130_REG_EXTENSION, ctl, 3);
+	if (ret < 0)
+		return ret;
+
+	/* Hardware alarm precision is 1 minute! */
+	ald[0] = bin2bcd(t->time.tm_min);
+	ald[1] = bin2bcd(t->time.tm_hour);
+	ald[2] = bin2bcd(t->time.tm_mday);
+
+	ret = regmap_bulk_write(ds1307->regmap, RX8130_REG_ALARM_MIN, ald, 3);
+	if (ret < 0)
+		return ret;
+
+	if (!t->enabled)
+		return 0;
+
+	ctl[2] |= RX8130_REG_CONTROL0_AIE;
+
+	return regmap_bulk_write(ds1307->regmap, RX8130_REG_EXTENSION, ctl, 3);
+}
+
+static int rx8130_alarm_irq_enable(struct device *dev, unsigned int enabled)
+{
+	struct ds1307 *ds1307 = dev_get_drvdata(dev);
+	int ret, reg;
+
+	if (!test_bit(HAS_ALARM, &ds1307->flags))
+		return -EINVAL;
+
+	ret = regmap_read(ds1307->regmap, RX8130_REG_CONTROL0, &reg);
+	if (ret < 0)
+		return ret;
+
+	if (enabled)
+		reg |= RX8130_REG_CONTROL0_AIE;
+	else
+		reg &= ~RX8130_REG_CONTROL0_AIE;
+
+	return regmap_write(ds1307->regmap, RX8130_REG_CONTROL0, reg);
+}
+
+static const struct rtc_class_ops rx8130_rtc_ops = {
 	.read_time	= ds1307_get_time,
 	.set_time	= ds1307_set_time,
-	.read_alarm	= ds1337_read_alarm,
-	.set_alarm	= ds1337_set_alarm,
-	.alarm_irq_enable = ds1307_alarm_irq_enable,
+	.read_alarm	= rx8130_read_alarm,
+	.set_alarm	= rx8130_set_alarm,
+	.alarm_irq_enable = rx8130_alarm_irq_enable,
 };
 
 /*----------------------------------------------------------------------*/
@@ -752,31 +759,27 @@ static const struct rtc_class_ops ds13xx_rtc_ops = {
 
 static irqreturn_t mcp794xx_irq(int irq, void *dev_id)
 {
-	struct i2c_client       *client = dev_id;
-	struct ds1307           *ds1307 = i2c_get_clientdata(client);
+	struct ds1307           *ds1307 = dev_id;
 	struct mutex            *lock = &ds1307->rtc->ops_lock;
 	int reg, ret;
 
 	mutex_lock(lock);
 
 	/* Check and clear alarm 0 interrupt flag. */
-	reg = i2c_smbus_read_byte_data(client, MCP794XX_REG_ALARM0_CTRL);
-	if (reg < 0)
+	ret = regmap_read(ds1307->regmap, MCP794XX_REG_ALARM0_CTRL, &reg);
+	if (ret)
 		goto out;
 	if (!(reg & MCP794XX_BIT_ALMX_IF))
 		goto out;
 	reg &= ~MCP794XX_BIT_ALMX_IF;
-	ret = i2c_smbus_write_byte_data(client, MCP794XX_REG_ALARM0_CTRL, reg);
-	if (ret < 0)
+	ret = regmap_write(ds1307->regmap, MCP794XX_REG_ALARM0_CTRL, reg);
+	if (ret)
 		goto out;
 
 	/* Disable alarm 0. */
-	reg = i2c_smbus_read_byte_data(client, MCP794XX_REG_CONTROL);
-	if (reg < 0)
-		goto out;
-	reg &= ~MCP794XX_BIT_ALM0_EN;
-	ret = i2c_smbus_write_byte_data(client, MCP794XX_REG_CONTROL, reg);
-	if (ret < 0)
+	ret = regmap_update_bits(ds1307->regmap, MCP794XX_REG_CONTROL,
+				 MCP794XX_BIT_ALM0_EN, 0);
+	if (ret)
 		goto out;
 
 	rtc_update_irq(ds1307->rtc, 1, RTC_AF | RTC_IRQF);
@@ -789,8 +792,7 @@ out:
 
 static int mcp794xx_read_alarm(struct device *dev, struct rtc_wkalrm *t)
 {
-	struct i2c_client *client = to_i2c_client(dev);
-	struct ds1307 *ds1307 = i2c_get_clientdata(client);
+	struct ds1307 *ds1307 = dev_get_drvdata(dev);
 	u8 *regs = ds1307->regs;
 	int ret;
 
@@ -798,8 +800,8 @@ static int mcp794xx_read_alarm(struct device *dev, struct rtc_wkalrm *t)
 		return -EINVAL;
 
 	/* Read control and alarm 0 registers. */
-	ret = ds1307->read_block_data(client, MCP794XX_REG_CONTROL, 10, regs);
-	if (ret < 0)
+	ret = regmap_bulk_read(ds1307->regmap, MCP794XX_REG_CONTROL, regs, 10);
+	if (ret)
 		return ret;
 
 	t->enabled = !!(regs[0] & MCP794XX_BIT_ALM0_EN);
@@ -828,8 +830,7 @@ static int mcp794xx_read_alarm(struct device *dev, struct rtc_wkalrm *t)
 
 static int mcp794xx_set_alarm(struct device *dev, struct rtc_wkalrm *t)
 {
-	struct i2c_client *client = to_i2c_client(dev);
-	struct ds1307 *ds1307 = i2c_get_clientdata(client);
+	struct ds1307 *ds1307 = dev_get_drvdata(dev);
 	unsigned char *regs = ds1307->regs;
 	int ret;
 
@@ -843,8 +844,8 @@ static int mcp794xx_set_alarm(struct device *dev, struct rtc_wkalrm *t)
 		t->enabled, t->pending);
 
 	/* Read control and alarm 0 registers. */
-	ret = ds1307->read_block_data(client, MCP794XX_REG_CONTROL, 10, regs);
-	if (ret < 0)
+	ret = regmap_bulk_read(ds1307->regmap, MCP794XX_REG_CONTROL, regs, 10);
+	if (ret)
 		return ret;
 
 	/* Set alarm 0, using 24-hour and day-of-month modes. */
@@ -862,35 +863,26 @@ static int mcp794xx_set_alarm(struct device *dev, struct rtc_wkalrm *t)
 	/* Disable interrupt. We will not enable until completely programmed */
 	regs[0] &= ~MCP794XX_BIT_ALM0_EN;
 
-	ret = ds1307->write_block_data(client, MCP794XX_REG_CONTROL, 10, regs);
-	if (ret < 0)
+	ret = regmap_bulk_write(ds1307->regmap, MCP794XX_REG_CONTROL, regs, 10);
+	if (ret)
 		return ret;
 
 	if (!t->enabled)
 		return 0;
 	regs[0] |= MCP794XX_BIT_ALM0_EN;
-	return i2c_smbus_write_byte_data(client, MCP794XX_REG_CONTROL, regs[0]);
+	return regmap_write(ds1307->regmap, MCP794XX_REG_CONTROL, regs[0]);
 }
 
 static int mcp794xx_alarm_irq_enable(struct device *dev, unsigned int enabled)
 {
-	struct i2c_client *client = to_i2c_client(dev);
-	struct ds1307 *ds1307 = i2c_get_clientdata(client);
-	int reg;
+	struct ds1307 *ds1307 = dev_get_drvdata(dev);
 
 	if (!test_bit(HAS_ALARM, &ds1307->flags))
 		return -EINVAL;
 
-	reg = i2c_smbus_read_byte_data(client, MCP794XX_REG_CONTROL);
-	if (reg < 0)
-		return reg;
-
-	if (enabled)
-		reg |= MCP794XX_BIT_ALM0_EN;
-	else
-		reg &= ~MCP794XX_BIT_ALM0_EN;
-
-	return i2c_smbus_write_byte_data(client, MCP794XX_REG_CONTROL, reg);
+	return regmap_update_bits(ds1307->regmap, MCP794XX_REG_CONTROL,
+				  MCP794XX_BIT_ALM0_EN,
+				  enabled ? MCP794XX_BIT_ALM0_EN : 0);
 }
 
 static const struct rtc_class_ops mcp794xx_rtc_ops = {
@@ -903,50 +895,27 @@ static const struct rtc_class_ops mcp794xx_rtc_ops = {
 
 /*----------------------------------------------------------------------*/
 
-static ssize_t
-ds1307_nvram_read(struct file *filp, struct kobject *kobj,
-		struct bin_attribute *attr,
-		char *buf, loff_t off, size_t count)
+static int ds1307_nvram_read(void *priv, unsigned int offset, void *val,
+			     size_t bytes)
 {
-	struct i2c_client	*client;
-	struct ds1307		*ds1307;
-	int			result;
+	struct ds1307 *ds1307 = priv;
 
-	client = kobj_to_i2c_client(kobj);
-	ds1307 = i2c_get_clientdata(client);
-
-	result = ds1307->read_block_data(client, ds1307->nvram_offset + off,
-								count, buf);
-	if (result < 0)
-		dev_err(&client->dev, "%s error %d\n", "nvram read", result);
-	return result;
+	return regmap_bulk_read(ds1307->regmap, ds1307->nvram_offset + offset,
+				val, bytes);
 }
 
-static ssize_t
-ds1307_nvram_write(struct file *filp, struct kobject *kobj,
-		struct bin_attribute *attr,
-		char *buf, loff_t off, size_t count)
+static int ds1307_nvram_write(void *priv, unsigned int offset, void *val,
+			      size_t bytes)
 {
-	struct i2c_client	*client;
-	struct ds1307		*ds1307;
-	int			result;
+	struct ds1307 *ds1307 = priv;
 
-	client = kobj_to_i2c_client(kobj);
-	ds1307 = i2c_get_clientdata(client);
-
-	result = ds1307->write_block_data(client, ds1307->nvram_offset + off,
-								count, buf);
-	if (result < 0) {
-		dev_err(&client->dev, "%s error %d\n", "nvram write", result);
-		return result;
-	}
-	return count;
+	return regmap_bulk_write(ds1307->regmap, ds1307->nvram_offset + offset,
+				 val, bytes);
 }
 
-
 /*----------------------------------------------------------------------*/
 
-static u8 do_trickle_setup_ds1339(struct i2c_client *client,
+static u8 do_trickle_setup_ds1339(struct ds1307 *ds1307,
 				  uint32_t ohms, bool diode)
 {
 	u8 setup = (diode) ? DS1307_TRICKLE_CHARGER_DIODE :
@@ -963,14 +932,14 @@ static u8 do_trickle_setup_ds1339(struct i2c_client *client,
 		setup |= DS1307_TRICKLE_CHARGER_4K_OHM;
 		break;
 	default:
-		dev_warn(&client->dev,
+		dev_warn(ds1307->dev,
 			 "Unsupported ohm value %u in dt\n", ohms);
 		return 0;
 	}
 	return setup;
 }
 
-static void ds1307_trickle_init(struct i2c_client *client,
+static void ds1307_trickle_init(struct ds1307 *ds1307,
 				struct chip_desc *chip)
 {
 	uint32_t ohms = 0;
@@ -978,11 +947,12 @@ static void ds1307_trickle_init(struct i2c_client *client,
 
 	if (!chip->do_trickle_setup)
 		goto out;
-	if (device_property_read_u32(&client->dev, "trickle-resistor-ohms", &ohms))
+	if (device_property_read_u32(ds1307->dev, "trickle-resistor-ohms",
+				     &ohms))
 		goto out;
-	if (device_property_read_bool(&client->dev, "trickle-diode-disable"))
+	if (device_property_read_bool(ds1307->dev, "trickle-diode-disable"))
 		diode = false;
-	chip->trickle_charger_setup = chip->do_trickle_setup(client,
+	chip->trickle_charger_setup = chip->do_trickle_setup(ds1307,
 							     ohms, diode);
 out:
 	return;
@@ -1009,13 +979,10 @@ static int ds3231_hwmon_read_temp(struct device *dev, s32 *mC)
 	s16 temp;
 	int ret;
 
-	ret = ds1307->read_block_data(ds1307->client, DS3231_REG_TEMPERATURE,
-					sizeof(temp_buf), temp_buf);
-	if (ret < 0)
+	ret = regmap_bulk_read(ds1307->regmap, DS3231_REG_TEMPERATURE,
+			       temp_buf, sizeof(temp_buf));
+	if (ret)
 		return ret;
-	if (ret != sizeof(temp_buf))
-		return -EIO;
-
 	/*
 	 * Temperature is represented as a 10-bit code with a resolution of
 	 * 0.25 degree celsius and encoded in two's complement format.
@@ -1055,12 +1022,11 @@ static void ds1307_hwmon_register(struct ds1307 *ds1307)
 	if (ds1307->type != ds_3231)
 		return;
 
-	dev = devm_hwmon_device_register_with_groups(&ds1307->client->dev,
-						ds1307->client->name,
+	dev = devm_hwmon_device_register_with_groups(ds1307->dev, ds1307->name,
 						ds1307, ds3231_hwmon_groups);
 	if (IS_ERR(dev)) {
-		dev_warn(&ds1307->client->dev,
-			"unable to register hwmon device %ld\n", PTR_ERR(dev));
+		dev_warn(ds1307->dev, "unable to register hwmon device %ld\n",
+			 PTR_ERR(dev));
 	}
 }
 
@@ -1099,24 +1065,12 @@ static int ds3231_clk_sqw_rates[] = {
 
 static int ds1337_write_control(struct ds1307 *ds1307, u8 mask, u8 value)
 {
-	struct i2c_client *client = ds1307->client;
 	struct mutex *lock = &ds1307->rtc->ops_lock;
-	int control;
 	int ret;
 
 	mutex_lock(lock);
-
-	control = i2c_smbus_read_byte_data(client, DS1337_REG_CONTROL);
-	if (control < 0) {
-		ret = control;
-		goto out;
-	}
-
-	control &= ~mask;
-	control |= value;
-
-	ret = i2c_smbus_write_byte_data(client, DS1337_REG_CONTROL, control);
-out:
+	ret = regmap_update_bits(ds1307->regmap, DS1337_REG_CONTROL,
+				 mask, value);
 	mutex_unlock(lock);
 
 	return ret;
@@ -1126,12 +1080,12 @@ static unsigned long ds3231_clk_sqw_recalc_rate(struct clk_hw *hw,
 						unsigned long parent_rate)
 {
 	struct ds1307 *ds1307 = clk_sqw_to_ds1307(hw);
-	int control;
+	int control, ret;
 	int rate_sel = 0;
 
-	control = i2c_smbus_read_byte_data(ds1307->client, DS1337_REG_CONTROL);
-	if (control < 0)
-		return control;
+	ret = regmap_read(ds1307->regmap, DS1337_REG_CONTROL, &control);
+	if (ret)
+		return ret;
 	if (control & DS1337_BIT_RS1)
 		rate_sel += 1;
 	if (control & DS1337_BIT_RS2)
@@ -1195,11 +1149,11 @@ static void ds3231_clk_sqw_unprepare(struct clk_hw *hw)
 static int ds3231_clk_sqw_is_prepared(struct clk_hw *hw)
 {
 	struct ds1307 *ds1307 = clk_sqw_to_ds1307(hw);
-	int control;
+	int control, ret;
 
-	control = i2c_smbus_read_byte_data(ds1307->client, DS1337_REG_CONTROL);
-	if (control < 0)
-		return control;
+	ret = regmap_read(ds1307->regmap, DS1337_REG_CONTROL, &control);
+	if (ret)
+		return ret;
 
 	return !(control & DS1337_BIT_INTCN);
 }
@@ -1221,26 +1175,13 @@ static unsigned long ds3231_clk_32khz_recalc_rate(struct clk_hw *hw,
 
 static int ds3231_clk_32khz_control(struct ds1307 *ds1307, bool enable)
 {
-	struct i2c_client *client = ds1307->client;
 	struct mutex *lock = &ds1307->rtc->ops_lock;
-	int status;
 	int ret;
 
 	mutex_lock(lock);
-
-	status = i2c_smbus_read_byte_data(client, DS1337_REG_STATUS);
-	if (status < 0) {
-		ret = status;
-		goto out;
-	}
-
-	if (enable)
-		status |= DS3231_BIT_EN32KHZ;
-	else
-		status &= ~DS3231_BIT_EN32KHZ;
-
-	ret = i2c_smbus_write_byte_data(client, DS1337_REG_STATUS, status);
-out:
+	ret = regmap_update_bits(ds1307->regmap, DS1337_REG_STATUS,
+				 DS3231_BIT_EN32KHZ,
+				 enable ? DS3231_BIT_EN32KHZ : 0);
 	mutex_unlock(lock);
 
 	return ret;
@@ -1263,11 +1204,11 @@ static void ds3231_clk_32khz_unprepare(struct clk_hw *hw)
 static int ds3231_clk_32khz_is_prepared(struct clk_hw *hw)
 {
 	struct ds1307 *ds1307 = clk_32khz_to_ds1307(hw);
-	int status;
+	int status, ret;
 
-	status = i2c_smbus_read_byte_data(ds1307->client, DS1337_REG_STATUS);
-	if (status < 0)
-		return status;
+	ret = regmap_read(ds1307->regmap, DS1337_REG_STATUS, &status);
+	if (ret)
+		return ret;
 
 	return !!(status & DS3231_BIT_EN32KHZ);
 }
@@ -1292,18 +1233,17 @@ static struct clk_init_data ds3231_clks_init[] = {
 
 static int ds3231_clks_register(struct ds1307 *ds1307)
 {
-	struct i2c_client *client = ds1307->client;
-	struct device_node *node = client->dev.of_node;
+	struct device_node *node = ds1307->dev->of_node;
 	struct clk_onecell_data	*onecell;
 	int i;
 
-	onecell = devm_kzalloc(&client->dev, sizeof(*onecell), GFP_KERNEL);
+	onecell = devm_kzalloc(ds1307->dev, sizeof(*onecell), GFP_KERNEL);
 	if (!onecell)
 		return -ENOMEM;
 
 	onecell->clk_num = ARRAY_SIZE(ds3231_clks_init);
-	onecell->clks = devm_kcalloc(&client->dev, onecell->clk_num,
-					sizeof(onecell->clks[0]), GFP_KERNEL);
+	onecell->clks = devm_kcalloc(ds1307->dev, onecell->clk_num,
+				     sizeof(onecell->clks[0]), GFP_KERNEL);
 	if (!onecell->clks)
 		return -ENOMEM;
 
@@ -1322,8 +1262,8 @@ static int ds3231_clks_register(struct ds1307 *ds1307)
 						&init.name);
 		ds1307->clks[i].init = &init;
 
-		onecell->clks[i] = devm_clk_register(&client->dev,
-							&ds1307->clks[i]);
+		onecell->clks[i] = devm_clk_register(ds1307->dev,
+						     &ds1307->clks[i]);
 		if (IS_ERR(onecell->clks[i]))
 			return PTR_ERR(onecell->clks[i]);
 	}
@@ -1345,8 +1285,8 @@ static void ds1307_clks_register(struct ds1307 *ds1307)
 
 	ret = ds3231_clks_register(ds1307);
 	if (ret) {
-		dev_warn(&ds1307->client->dev,
-			"unable to register clock device %d\n", ret);
+		dev_warn(ds1307->dev, "unable to register clock device %d\n",
+			 ret);
 	}
 }
 
@@ -1358,6 +1298,11 @@ static void ds1307_clks_register(struct ds1307 *ds1307)
 
 #endif /* CONFIG_COMMON_CLK */
 
+static const struct regmap_config regmap_config = {
+	.reg_bits = 8,
+	.val_bits = 8,
+};
+
 static int ds1307_probe(struct i2c_client *client,
 			const struct i2c_device_id *id)
 {
@@ -1365,7 +1310,6 @@ static int ds1307_probe(struct i2c_client *client,
 	int			err = -ENODEV;
 	int			tmp, wday;
 	struct chip_desc	*chip;
-	struct i2c_adapter	*adapter = to_i2c_adapter(client->dev.parent);
 	bool			want_irq = false;
 	bool			ds1307_can_wakeup_device = false;
 	unsigned char		*buf;
@@ -1382,17 +1326,22 @@ static int ds1307_probe(struct i2c_client *client,
 	};
 	const struct rtc_class_ops *rtc_ops = &ds13xx_rtc_ops;
 
-	if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA)
-	    && !i2c_check_functionality(adapter, I2C_FUNC_SMBUS_I2C_BLOCK))
-		return -EIO;
-
 	ds1307 = devm_kzalloc(&client->dev, sizeof(struct ds1307), GFP_KERNEL);
 	if (!ds1307)
 		return -ENOMEM;
 
-	i2c_set_clientdata(client, ds1307);
+	dev_set_drvdata(&client->dev, ds1307);
+	ds1307->dev = &client->dev;
+	ds1307->name = client->name;
+	ds1307->irq = client->irq;
 
-	ds1307->client	= client;
+	ds1307->regmap = devm_regmap_init_i2c(client, &regmap_config);
+	if (IS_ERR(ds1307->regmap)) {
+		dev_err(ds1307->dev, "regmap allocation failed\n");
+		return PTR_ERR(ds1307->regmap);
+	}
+
+	i2c_set_clientdata(client, ds1307);
 
 	if (client->dev.of_node) {
 		ds1307->type = (enum ds_type)
@@ -1405,7 +1354,7 @@ static int ds1307_probe(struct i2c_client *client,
 		const struct acpi_device_id *acpi_id;
 
 		acpi_id = acpi_match_device(ACPI_PTR(ds1307_acpi_ids),
-					    &client->dev);
+					    ds1307->dev);
 		if (!acpi_id)
 			return -ENODEV;
 		chip = &chips[acpi_id->driver_data];
@@ -1413,27 +1362,21 @@ static int ds1307_probe(struct i2c_client *client,
 	}
 
 	if (!pdata)
-		ds1307_trickle_init(client, chip);
+		ds1307_trickle_init(ds1307, chip);
 	else if (pdata->trickle_charger_setup)
 		chip->trickle_charger_setup = pdata->trickle_charger_setup;
 
 	if (chip->trickle_charger_setup && chip->trickle_charger_reg) {
-		dev_dbg(&client->dev, "writing trickle charger info 0x%x to 0x%x\n",
+		dev_dbg(ds1307->dev,
+			"writing trickle charger info 0x%x to 0x%x\n",
 		    DS13XX_TRICKLE_CHARGER_MAGIC | chip->trickle_charger_setup,
 		    chip->trickle_charger_reg);
-		i2c_smbus_write_byte_data(client, chip->trickle_charger_reg,
+		regmap_write(ds1307->regmap, chip->trickle_charger_reg,
 		    DS13XX_TRICKLE_CHARGER_MAGIC |
 		    chip->trickle_charger_setup);
 	}
 
 	buf = ds1307->regs;
-	if (i2c_check_functionality(adapter, I2C_FUNC_SMBUS_I2C_BLOCK)) {
-		ds1307->read_block_data = ds1307_native_smbus_read_block_data;
-		ds1307->write_block_data = ds1307_native_smbus_write_block_data;
-	} else {
-		ds1307->read_block_data = ds1307_read_block_data;
-		ds1307->write_block_data = ds1307_write_block_data;
-	}
 
 #ifdef CONFIG_OF
 /*
@@ -1459,11 +1402,10 @@ static int ds1307_probe(struct i2c_client *client,
 	case ds_1339:
 	case ds_3231:
 		/* get registers that the "rtc" read below won't read... */
-		tmp = ds1307->read_block_data(ds1307->client,
-				DS1337_REG_CONTROL, 2, buf);
-		if (tmp != 2) {
-			dev_dbg(&client->dev, "read error %d\n", tmp);
-			err = -EIO;
+		err = regmap_bulk_read(ds1307->regmap, DS1337_REG_CONTROL,
+				       buf, 2);
+		if (err) {
+			dev_dbg(ds1307->dev, "read error %d\n", err);
 			goto exit;
 		}
 
@@ -1477,8 +1419,8 @@ static int ds1307_probe(struct i2c_client *client,
 		 * For some variants, be sure alarms can trigger when we're
 		 * running on Vbackup (BBSQI/BBSQW)
 		 */
-		if (chip->alarm && (ds1307->client->irq > 0 ||
-						ds1307_can_wakeup_device)) {
+		if (chip->alarm && (ds1307->irq > 0 ||
+				    ds1307_can_wakeup_device)) {
 			ds1307->regs[0] |= DS1337_BIT_INTCN
 					| bbsqi_bitpos[ds1307->type];
 			ds1307->regs[0] &= ~(DS1337_BIT_A2IE | DS1337_BIT_A1IE);
@@ -1486,50 +1428,49 @@ static int ds1307_probe(struct i2c_client *client,
 			want_irq = true;
 		}
 
-		i2c_smbus_write_byte_data(client, DS1337_REG_CONTROL,
-							ds1307->regs[0]);
+		regmap_write(ds1307->regmap, DS1337_REG_CONTROL,
+			     ds1307->regs[0]);
 
 		/* oscillator fault?  clear flag, and warn */
 		if (ds1307->regs[1] & DS1337_BIT_OSF) {
-			i2c_smbus_write_byte_data(client, DS1337_REG_STATUS,
-				ds1307->regs[1] & ~DS1337_BIT_OSF);
-			dev_warn(&client->dev, "SET TIME!\n");
+			regmap_write(ds1307->regmap, DS1337_REG_STATUS,
+				     ds1307->regs[1] & ~DS1337_BIT_OSF);
+			dev_warn(ds1307->dev, "SET TIME!\n");
 		}
 		break;
 
 	case rx_8025:
-		tmp = i2c_smbus_read_i2c_block_data(ds1307->client,
-				RX8025_REG_CTRL1 << 4 | 0x08, 2, buf);
-		if (tmp != 2) {
-			dev_dbg(&client->dev, "read error %d\n", tmp);
-			err = -EIO;
+		err = regmap_bulk_read(ds1307->regmap,
+				       RX8025_REG_CTRL1 << 4 | 0x08, buf, 2);
+		if (err) {
+			dev_dbg(ds1307->dev, "read error %d\n", err);
 			goto exit;
 		}
 
 		/* oscillator off?  turn it on, so clock can tick. */
 		if (!(ds1307->regs[1] & RX8025_BIT_XST)) {
 			ds1307->regs[1] |= RX8025_BIT_XST;
-			i2c_smbus_write_byte_data(client,
-						  RX8025_REG_CTRL2 << 4 | 0x08,
-						  ds1307->regs[1]);
-			dev_warn(&client->dev,
+			regmap_write(ds1307->regmap,
+				     RX8025_REG_CTRL2 << 4 | 0x08,
+				     ds1307->regs[1]);
+			dev_warn(ds1307->dev,
 				 "oscillator stop detected - SET TIME!\n");
 		}
 
 		if (ds1307->regs[1] & RX8025_BIT_PON) {
 			ds1307->regs[1] &= ~RX8025_BIT_PON;
-			i2c_smbus_write_byte_data(client,
-						  RX8025_REG_CTRL2 << 4 | 0x08,
-						  ds1307->regs[1]);
-			dev_warn(&client->dev, "power-on detected\n");
+			regmap_write(ds1307->regmap,
+				     RX8025_REG_CTRL2 << 4 | 0x08,
+				     ds1307->regs[1]);
+			dev_warn(ds1307->dev, "power-on detected\n");
 		}
 
 		if (ds1307->regs[1] & RX8025_BIT_VDET) {
 			ds1307->regs[1] &= ~RX8025_BIT_VDET;
-			i2c_smbus_write_byte_data(client,
-						  RX8025_REG_CTRL2 << 4 | 0x08,
-						  ds1307->regs[1]);
-			dev_warn(&client->dev, "voltage drop detected\n");
+			regmap_write(ds1307->regmap,
+				     RX8025_REG_CTRL2 << 4 | 0x08,
+				     ds1307->regs[1]);
+			dev_warn(ds1307->dev, "voltage drop detected\n");
 		}
 
 		/* make sure we are running in 24hour mode */
@@ -1537,16 +1478,15 @@ static int ds1307_probe(struct i2c_client *client,
 			u8 hour;
 
 			/* switch to 24 hour mode */
-			i2c_smbus_write_byte_data(client,
-						  RX8025_REG_CTRL1 << 4 | 0x08,
-						  ds1307->regs[0] |
-						  RX8025_BIT_2412);
-
-			tmp = i2c_smbus_read_i2c_block_data(ds1307->client,
-					RX8025_REG_CTRL1 << 4 | 0x08, 2, buf);
-			if (tmp != 2) {
-				dev_dbg(&client->dev, "read error %d\n", tmp);
-				err = -EIO;
+			regmap_write(ds1307->regmap,
+				     RX8025_REG_CTRL1 << 4 | 0x08,
+				     ds1307->regs[0] | RX8025_BIT_2412);
+
+			err = regmap_bulk_read(ds1307->regmap,
+					       RX8025_REG_CTRL1 << 4 | 0x08,
+					       buf, 2);
+			if (err) {
+				dev_dbg(ds1307->dev, "read error %d\n", err);
 				goto exit;
 			}
 
@@ -1557,9 +1497,16 @@ static int ds1307_probe(struct i2c_client *client,
 			if (ds1307->regs[DS1307_REG_HOUR] & DS1307_BIT_PM)
 				hour += 12;
 
-			i2c_smbus_write_byte_data(client,
-						  DS1307_REG_HOUR << 4 | 0x08,
-						  hour);
+			regmap_write(ds1307->regmap,
+				     DS1307_REG_HOUR << 4 | 0x08, hour);
+		}
+		break;
+	case rx_8130:
+		ds1307->offset = 0x10; /* Seconds starts at 0x10 */
+		rtc_ops = &rx8130_rtc_ops;
+		if (chip->alarm && ds1307->irq > 0) {
+			irq_handler = rx8130_irq;
+			want_irq = true;
 		}
 		break;
 	case ds_1388:
@@ -1567,7 +1514,8 @@ static int ds1307_probe(struct i2c_client *client,
 		break;
 	case mcp794xx:
 		rtc_ops = &mcp794xx_rtc_ops;
-		if (ds1307->client->irq > 0 && chip->alarm) {
+		if (chip->alarm && (ds1307->irq > 0 ||
+				    ds1307_can_wakeup_device)) {
 			irq_handler = mcp794xx_irq;
 			want_irq = true;
 		}
@@ -1578,10 +1526,9 @@ static int ds1307_probe(struct i2c_client *client,
 
 read_rtc:
 	/* read RTC registers */
-	tmp = ds1307->read_block_data(ds1307->client, ds1307->offset, 8, buf);
-	if (tmp != 8) {
-		dev_dbg(&client->dev, "read error %d\n", tmp);
-		err = -EIO;
+	err = regmap_bulk_read(ds1307->regmap, ds1307->offset, buf, 8);
+	if (err) {
+		dev_dbg(ds1307->dev, "read error %d\n", err);
 		goto exit;
 	}
 
@@ -1597,56 +1544,56 @@ read_rtc:
 	case m41t00:
 		/* clock halted?  turn it on, so clock can tick. */
 		if (tmp & DS1307_BIT_CH) {
-			i2c_smbus_write_byte_data(client, DS1307_REG_SECS, 0);
-			dev_warn(&client->dev, "SET TIME!\n");
+			regmap_write(ds1307->regmap, DS1307_REG_SECS, 0);
+			dev_warn(ds1307->dev, "SET TIME!\n");
 			goto read_rtc;
 		}
 		break;
+	case ds_1308:
 	case ds_1338:
 		/* clock halted?  turn it on, so clock can tick. */
 		if (tmp & DS1307_BIT_CH)
-			i2c_smbus_write_byte_data(client, DS1307_REG_SECS, 0);
+			regmap_write(ds1307->regmap, DS1307_REG_SECS, 0);
 
 		/* oscillator fault?  clear flag, and warn */
 		if (ds1307->regs[DS1307_REG_CONTROL] & DS1338_BIT_OSF) {
-			i2c_smbus_write_byte_data(client, DS1307_REG_CONTROL,
-					ds1307->regs[DS1307_REG_CONTROL]
-					& ~DS1338_BIT_OSF);
-			dev_warn(&client->dev, "SET TIME!\n");
+			regmap_write(ds1307->regmap, DS1307_REG_CONTROL,
+					ds1307->regs[DS1307_REG_CONTROL] &
+					~DS1338_BIT_OSF);
+			dev_warn(ds1307->dev, "SET TIME!\n");
 			goto read_rtc;
 		}
 		break;
 	case ds_1340:
 		/* clock halted?  turn it on, so clock can tick. */
 		if (tmp & DS1340_BIT_nEOSC)
-			i2c_smbus_write_byte_data(client, DS1307_REG_SECS, 0);
+			regmap_write(ds1307->regmap, DS1307_REG_SECS, 0);
 
-		tmp = i2c_smbus_read_byte_data(client, DS1340_REG_FLAG);
-		if (tmp < 0) {
-			dev_dbg(&client->dev, "read error %d\n", tmp);
-			err = -EIO;
+		err = regmap_read(ds1307->regmap, DS1340_REG_FLAG, &tmp);
+		if (err) {
+			dev_dbg(ds1307->dev, "read error %d\n", err);
 			goto exit;
 		}
 
 		/* oscillator fault?  clear flag, and warn */
 		if (tmp & DS1340_BIT_OSF) {
-			i2c_smbus_write_byte_data(client, DS1340_REG_FLAG, 0);
-			dev_warn(&client->dev, "SET TIME!\n");
+			regmap_write(ds1307->regmap, DS1340_REG_FLAG, 0);
+			dev_warn(ds1307->dev, "SET TIME!\n");
 		}
 		break;
 	case mcp794xx:
 		/* make sure that the backup battery is enabled */
 		if (!(ds1307->regs[DS1307_REG_WDAY] & MCP794XX_BIT_VBATEN)) {
-			i2c_smbus_write_byte_data(client, DS1307_REG_WDAY,
-					ds1307->regs[DS1307_REG_WDAY]
-					| MCP794XX_BIT_VBATEN);
+			regmap_write(ds1307->regmap, DS1307_REG_WDAY,
+				     ds1307->regs[DS1307_REG_WDAY] |
+				     MCP794XX_BIT_VBATEN);
 		}
 
 		/* clock halted?  turn it on, so clock can tick. */
 		if (!(tmp & MCP794XX_BIT_ST)) {
-			i2c_smbus_write_byte_data(client, DS1307_REG_SECS,
-					MCP794XX_BIT_ST);
-			dev_warn(&client->dev, "SET TIME!\n");
+			regmap_write(ds1307->regmap, DS1307_REG_SECS,
+				     MCP794XX_BIT_ST);
+			dev_warn(ds1307->dev, "SET TIME!\n");
 			goto read_rtc;
 		}
 
@@ -1680,16 +1627,15 @@ read_rtc:
 			tmp = 0;
 		if (ds1307->regs[DS1307_REG_HOUR] & DS1307_BIT_PM)
 			tmp += 12;
-		i2c_smbus_write_byte_data(client,
-				ds1307->offset + DS1307_REG_HOUR,
-				bin2bcd(tmp));
+		regmap_write(ds1307->regmap, ds1307->offset + DS1307_REG_HOUR,
+			     bin2bcd(tmp));
 	}
 
 	/*
 	 * Some IPs have weekday reset value = 0x1 which might not correct
 	 * hence compute the wday using the current date/month/year values
 	 */
-	ds1307_get_time(&client->dev, &tm);
+	ds1307_get_time(ds1307->dev, &tm);
 	wday = tm.tm_wday;
 	timestamp = rtc_tm_to_time64(&tm);
 	rtc_time64_to_tm(timestamp, &tm);
@@ -1699,78 +1645,63 @@ read_rtc:
 	 * If different then set the wday which we computed using
 	 * timestamp
 	 */
-	if (wday != tm.tm_wday) {
-		wday = i2c_smbus_read_byte_data(client, MCP794XX_REG_WEEKDAY);
-		wday = wday & ~MCP794XX_REG_WEEKDAY_WDAY_MASK;
-		wday = wday | (tm.tm_wday + 1);
-		i2c_smbus_write_byte_data(client, MCP794XX_REG_WEEKDAY, wday);
-	}
+	if (wday != tm.tm_wday)
+		regmap_update_bits(ds1307->regmap, MCP794XX_REG_WEEKDAY,
+				   MCP794XX_REG_WEEKDAY_WDAY_MASK,
+				   tm.tm_wday + 1);
 
 	if (want_irq) {
-		device_set_wakeup_capable(&client->dev, true);
+		device_set_wakeup_capable(ds1307->dev, true);
 		set_bit(HAS_ALARM, &ds1307->flags);
 	}
-	ds1307->rtc = devm_rtc_device_register(&client->dev, client->name,
-				rtc_ops, THIS_MODULE);
+
+	ds1307->rtc = devm_rtc_allocate_device(ds1307->dev);
 	if (IS_ERR(ds1307->rtc)) {
 		return PTR_ERR(ds1307->rtc);
 	}
 
-	if (ds1307_can_wakeup_device && ds1307->client->irq <= 0) {
+	if (ds1307_can_wakeup_device && ds1307->irq <= 0) {
 		/* Disable request for an IRQ */
 		want_irq = false;
-		dev_info(&client->dev, "'wakeup-source' is set, request for an IRQ is disabled!\n");
+		dev_info(ds1307->dev,
+			 "'wakeup-source' is set, request for an IRQ is disabled!\n");
 		/* We cannot support UIE mode if we do not have an IRQ line */
 		ds1307->rtc->uie_unsupported = 1;
 	}
 
 	if (want_irq) {
-		err = devm_request_threaded_irq(&client->dev,
-						client->irq, NULL, irq_handler,
+		err = devm_request_threaded_irq(ds1307->dev,
+						ds1307->irq, NULL, irq_handler,
 						IRQF_SHARED | IRQF_ONESHOT,
-						ds1307->rtc->name, client);
+						ds1307->name, ds1307);
 		if (err) {
 			client->irq = 0;
-			device_set_wakeup_capable(&client->dev, false);
+			device_set_wakeup_capable(ds1307->dev, false);
 			clear_bit(HAS_ALARM, &ds1307->flags);
-			dev_err(&client->dev, "unable to request IRQ!\n");
+			dev_err(ds1307->dev, "unable to request IRQ!\n");
 		} else
-			dev_dbg(&client->dev, "got IRQ %d\n", client->irq);
+			dev_dbg(ds1307->dev, "got IRQ %d\n", client->irq);
 	}
 
 	if (chip->nvram_size) {
-
-		ds1307->nvram = devm_kzalloc(&client->dev,
-					sizeof(struct bin_attribute),
-					GFP_KERNEL);
-		if (!ds1307->nvram) {
-			dev_err(&client->dev, "cannot allocate memory for nvram sysfs\n");
-		} else {
-
-			ds1307->nvram->attr.name = "nvram";
-			ds1307->nvram->attr.mode = S_IRUGO | S_IWUSR;
-
-			sysfs_bin_attr_init(ds1307->nvram);
-
-			ds1307->nvram->read = ds1307_nvram_read;
-			ds1307->nvram->write = ds1307_nvram_write;
-			ds1307->nvram->size = chip->nvram_size;
-			ds1307->nvram_offset = chip->nvram_offset;
-
-			err = sysfs_create_bin_file(&client->dev.kobj,
-						    ds1307->nvram);
-			if (err) {
-				dev_err(&client->dev,
-					"unable to create sysfs file: %s\n",
-					ds1307->nvram->attr.name);
-			} else {
-				set_bit(HAS_NVRAM, &ds1307->flags);
-				dev_info(&client->dev, "%zu bytes nvram\n",
-					 ds1307->nvram->size);
-			}
-		}
+		ds1307->nvmem_cfg.name = "ds1307_nvram";
+		ds1307->nvmem_cfg.word_size = 1;
+		ds1307->nvmem_cfg.stride = 1;
+		ds1307->nvmem_cfg.size = chip->nvram_size;
+		ds1307->nvmem_cfg.reg_read = ds1307_nvram_read;
+		ds1307->nvmem_cfg.reg_write = ds1307_nvram_write;
+		ds1307->nvmem_cfg.priv = ds1307;
+		ds1307->nvram_offset = chip->nvram_offset;
+
+		ds1307->rtc->nvmem_config = &ds1307->nvmem_cfg;
+		ds1307->rtc->nvram_old_abi = true;
 	}
 
+	ds1307->rtc->ops = rtc_ops;
+	err = rtc_register_device(ds1307->rtc);
+	if (err)
+		return err;
+
 	ds1307_hwmon_register(ds1307);
 	ds1307_clks_register(ds1307);
 
@@ -1780,16 +1711,6 @@ exit:
 	return err;
 }
 
-static int ds1307_remove(struct i2c_client *client)
-{
-	struct ds1307 *ds1307 = i2c_get_clientdata(client);
-
-	if (test_and_clear_bit(HAS_NVRAM, &ds1307->flags))
-		sysfs_remove_bin_file(&client->dev.kobj, ds1307->nvram);
-
-	return 0;
-}
-
 static struct i2c_driver ds1307_driver = {
 	.driver = {
 		.name	= "rtc-ds1307",
@@ -1797,7 +1718,6 @@ static struct i2c_driver ds1307_driver = {
 		.acpi_match_table = ACPI_PTR(ds1307_acpi_ids),
 	},
 	.probe		= ds1307_probe,
-	.remove		= ds1307_remove,
 	.id_table	= ds1307_id,
 };
 
diff --git a/drivers/rtc/rtc-ds3232.c b/drivers/rtc/rtc-ds3232.c
index deff431a37c4..0550f7ba464f 100644
--- a/drivers/rtc/rtc-ds3232.c
+++ b/drivers/rtc/rtc-ds3232.c
@@ -22,6 +22,7 @@
 #include <linux/bcd.h>
 #include <linux/slab.h>
 #include <linux/regmap.h>
+#include <linux/hwmon.h>
 
 #define DS3232_REG_SECONDS      0x00
 #define DS3232_REG_MINUTES      0x01
@@ -46,6 +47,8 @@
 #       define DS3232_REG_SR_A2F     0x02
 #       define DS3232_REG_SR_A1F     0x01
 
+#define DS3232_REG_TEMPERATURE	0x11
+
 struct ds3232 {
 	struct device *dev;
 	struct regmap *regmap;
@@ -275,6 +278,120 @@ static int ds3232_update_alarm(struct device *dev, unsigned int enabled)
 	return ret;
 }
 
+/*
+ * Temperature sensor support for ds3232/ds3234 devices.
+ * A user-initiated temperature conversion is not started by this function,
+ * so the temperature is updated once every 64 seconds.
+ */
+static int ds3232_hwmon_read_temp(struct device *dev, long int *mC)
+{
+	struct ds3232 *ds3232 = dev_get_drvdata(dev);
+	u8 temp_buf[2];
+	s16 temp;
+	int ret;
+
+	ret = regmap_bulk_read(ds3232->regmap, DS3232_REG_TEMPERATURE, temp_buf,
+			       sizeof(temp_buf));
+	if (ret < 0)
+		return ret;
+
+	/*
+	 * Temperature is represented as a 10-bit code with a resolution of
+	 * 0.25 degree celsius and encoded in two's complement format.
+	 */
+	temp = (temp_buf[0] << 8) | temp_buf[1];
+	temp >>= 6;
+	*mC = temp * 250;
+
+	return 0;
+}
+
+static umode_t ds3232_hwmon_is_visible(const void *data,
+				       enum hwmon_sensor_types type,
+				       u32 attr, int channel)
+{
+	if (type != hwmon_temp)
+		return 0;
+
+	switch (attr) {
+	case hwmon_temp_input:
+		return 0444;
+	default:
+		return 0;
+	}
+}
+
+static int ds3232_hwmon_read(struct device *dev,
+			     enum hwmon_sensor_types type,
+			     u32 attr, int channel, long *temp)
+{
+	int err;
+
+	switch (attr) {
+	case hwmon_temp_input:
+		err = ds3232_hwmon_read_temp(dev, temp);
+		break;
+	default:
+		err = -EOPNOTSUPP;
+		break;
+	}
+
+	return err;
+}
+
+static u32 ds3232_hwmon_chip_config[] = {
+	HWMON_C_REGISTER_TZ,
+	0
+};
+
+static const struct hwmon_channel_info ds3232_hwmon_chip = {
+	.type = hwmon_chip,
+	.config = ds3232_hwmon_chip_config,
+};
+
+static u32 ds3232_hwmon_temp_config[] = {
+	HWMON_T_INPUT,
+	0
+};
+
+static const struct hwmon_channel_info ds3232_hwmon_temp = {
+	.type = hwmon_temp,
+	.config = ds3232_hwmon_temp_config,
+};
+
+static const struct hwmon_channel_info *ds3232_hwmon_info[] = {
+	&ds3232_hwmon_chip,
+	&ds3232_hwmon_temp,
+	NULL
+};
+
+static const struct hwmon_ops ds3232_hwmon_hwmon_ops = {
+	.is_visible = ds3232_hwmon_is_visible,
+	.read = ds3232_hwmon_read,
+};
+
+static const struct hwmon_chip_info ds3232_hwmon_chip_info = {
+	.ops = &ds3232_hwmon_hwmon_ops,
+	.info = ds3232_hwmon_info,
+};
+
+static void ds3232_hwmon_register(struct device *dev, const char *name)
+{
+	struct ds3232 *ds3232 = dev_get_drvdata(dev);
+	struct device *hwmon_dev;
+
+	if (!IS_ENABLED(CONFIG_RTC_DRV_DS3232_HWMON))
+		return;
+
+	hwmon_dev = devm_hwmon_device_register_with_info(dev, name, ds3232,
+							&ds3232_hwmon_chip_info,
+							NULL);
+	if (IS_ERR(hwmon_dev)) {
+		dev_err(dev, "unable to register hwmon device %ld\n",
+			PTR_ERR(hwmon_dev));
+	}
+}
+
 static int ds3232_alarm_irq_enable(struct device *dev, unsigned int enabled)
 {
 	struct ds3232 *ds3232 = dev_get_drvdata(dev);
@@ -366,6 +483,8 @@ static int ds3232_probe(struct device *dev, struct regmap *regmap, int irq,
 	if (ds3232->irq > 0)
 		device_init_wakeup(dev, 1);
 
+	ds3232_hwmon_register(dev, name);
+
 	ds3232->rtc = devm_rtc_device_register(dev, name, &ds3232_rtc_ops,
 						THIS_MODULE);
 	if (IS_ERR(ds3232->rtc))
diff --git a/drivers/rtc/rtc-gemini.c b/drivers/rtc/rtc-ftrtc010.c
index 5279390bb42d..af8d6beae20c 100644
--- a/drivers/rtc/rtc-gemini.c
+++ b/drivers/rtc/rtc-ftrtc010.c
@@ -1,5 +1,5 @@
 /*
- *  Gemini OnChip RTC
+ *  Faraday Technology FTRTC010 driver
  *
  *  Copyright (C) 2009 Janos Laube <janos.dev@gmail.com>
  *
@@ -26,33 +26,36 @@
 #include <linux/platform_device.h>
 #include <linux/kernel.h>
 #include <linux/module.h>
+#include <linux/clk.h>
 
-#define DRV_NAME        "rtc-gemini"
+#define DRV_NAME        "rtc-ftrtc010"
 
 MODULE_AUTHOR("Hans Ulli Kroll <ulli.kroll@googlemail.com>");
 MODULE_DESCRIPTION("RTC driver for Gemini SoC");
 MODULE_LICENSE("GPL");
 MODULE_ALIAS("platform:" DRV_NAME);
 
-struct gemini_rtc {
+struct ftrtc010_rtc {
 	struct rtc_device	*rtc_dev;
 	void __iomem		*rtc_base;
 	int			rtc_irq;
+	struct clk		*pclk;
+	struct clk		*extclk;
 };
 
-enum gemini_rtc_offsets {
-	GEMINI_RTC_SECOND	= 0x00,
-	GEMINI_RTC_MINUTE	= 0x04,
-	GEMINI_RTC_HOUR		= 0x08,
-	GEMINI_RTC_DAYS		= 0x0C,
-	GEMINI_RTC_ALARM_SECOND	= 0x10,
-	GEMINI_RTC_ALARM_MINUTE	= 0x14,
-	GEMINI_RTC_ALARM_HOUR	= 0x18,
-	GEMINI_RTC_RECORD	= 0x1C,
-	GEMINI_RTC_CR		= 0x20
+enum ftrtc010_rtc_offsets {
+	FTRTC010_RTC_SECOND		= 0x00,
+	FTRTC010_RTC_MINUTE		= 0x04,
+	FTRTC010_RTC_HOUR		= 0x08,
+	FTRTC010_RTC_DAYS		= 0x0C,
+	FTRTC010_RTC_ALARM_SECOND	= 0x10,
+	FTRTC010_RTC_ALARM_MINUTE	= 0x14,
+	FTRTC010_RTC_ALARM_HOUR		= 0x18,
+	FTRTC010_RTC_RECORD		= 0x1C,
+	FTRTC010_RTC_CR			= 0x20,
 };
 
-static irqreturn_t gemini_rtc_interrupt(int irq, void *dev)
+static irqreturn_t ftrtc010_rtc_interrupt(int irq, void *dev)
 {
 	return IRQ_HANDLED;
 }
@@ -66,18 +69,18 @@ static irqreturn_t gemini_rtc_interrupt(int irq, void *dev)
  * the same thing, without the rtc-lib.c calls.
  */
 
-static int gemini_rtc_read_time(struct device *dev, struct rtc_time *tm)
+static int ftrtc010_rtc_read_time(struct device *dev, struct rtc_time *tm)
 {
-	struct gemini_rtc *rtc = dev_get_drvdata(dev);
+	struct ftrtc010_rtc *rtc = dev_get_drvdata(dev);
 
 	unsigned int  days, hour, min, sec;
 	unsigned long offset, time;
 
-	sec  = readl(rtc->rtc_base + GEMINI_RTC_SECOND);
-	min  = readl(rtc->rtc_base + GEMINI_RTC_MINUTE);
-	hour = readl(rtc->rtc_base + GEMINI_RTC_HOUR);
-	days = readl(rtc->rtc_base + GEMINI_RTC_DAYS);
-	offset = readl(rtc->rtc_base + GEMINI_RTC_RECORD);
+	sec  = readl(rtc->rtc_base + FTRTC010_RTC_SECOND);
+	min  = readl(rtc->rtc_base + FTRTC010_RTC_MINUTE);
+	hour = readl(rtc->rtc_base + FTRTC010_RTC_HOUR);
+	days = readl(rtc->rtc_base + FTRTC010_RTC_DAYS);
+	offset = readl(rtc->rtc_base + FTRTC010_RTC_RECORD);
 
 	time = offset + days * 86400 + hour * 3600 + min * 60 + sec;
 
@@ -86,9 +89,9 @@ static int gemini_rtc_read_time(struct device *dev, struct rtc_time *tm)
 	return 0;
 }
 
-static int gemini_rtc_set_time(struct device *dev, struct rtc_time *tm)
+static int ftrtc010_rtc_set_time(struct device *dev, struct rtc_time *tm)
 {
-	struct gemini_rtc *rtc = dev_get_drvdata(dev);
+	struct ftrtc010_rtc *rtc = dev_get_drvdata(dev);
 	unsigned int sec, min, hour, day;
 	unsigned long offset, time;
 
@@ -97,27 +100,27 @@ static int gemini_rtc_set_time(struct device *dev, struct rtc_time *tm)
 
 	rtc_tm_to_time(tm, &time);
 
-	sec = readl(rtc->rtc_base + GEMINI_RTC_SECOND);
-	min = readl(rtc->rtc_base + GEMINI_RTC_MINUTE);
-	hour = readl(rtc->rtc_base + GEMINI_RTC_HOUR);
-	day = readl(rtc->rtc_base + GEMINI_RTC_DAYS);
+	sec = readl(rtc->rtc_base + FTRTC010_RTC_SECOND);
+	min = readl(rtc->rtc_base + FTRTC010_RTC_MINUTE);
+	hour = readl(rtc->rtc_base + FTRTC010_RTC_HOUR);
+	day = readl(rtc->rtc_base + FTRTC010_RTC_DAYS);
 
 	offset = time - (day * 86400 + hour * 3600 + min * 60 + sec);
 
-	writel(offset, rtc->rtc_base + GEMINI_RTC_RECORD);
-	writel(0x01, rtc->rtc_base + GEMINI_RTC_CR);
+	writel(offset, rtc->rtc_base + FTRTC010_RTC_RECORD);
+	writel(0x01, rtc->rtc_base + FTRTC010_RTC_CR);
 
 	return 0;
 }
 
-static const struct rtc_class_ops gemini_rtc_ops = {
-	.read_time     = gemini_rtc_read_time,
-	.set_time      = gemini_rtc_set_time,
+static const struct rtc_class_ops ftrtc010_rtc_ops = {
+	.read_time     = ftrtc010_rtc_read_time,
+	.set_time      = ftrtc010_rtc_set_time,
 };
 
-static int gemini_rtc_probe(struct platform_device *pdev)
+static int ftrtc010_rtc_probe(struct platform_device *pdev)
 {
-	struct gemini_rtc *rtc;
+	struct ftrtc010_rtc *rtc;
 	struct device *dev = &pdev->dev;
 	struct resource *res;
 	int ret;
@@ -127,6 +130,27 @@ static int gemini_rtc_probe(struct platform_device *pdev)
 		return -ENOMEM;
 	platform_set_drvdata(pdev, rtc);
 
+	rtc->pclk = devm_clk_get(dev, "PCLK");
+	if (IS_ERR(rtc->pclk)) {
+		dev_err(dev, "could not get PCLK\n");
+	} else {
+		ret = clk_prepare_enable(rtc->pclk);
+		if (ret) {
+			dev_err(dev, "failed to enable PCLK\n");
+			return ret;
+		}
+	}
+	rtc->extclk = devm_clk_get(dev, "EXTCLK");
+	if (IS_ERR(rtc->extclk)) {
+		dev_err(dev, "could not get EXTCLK\n");
+	} else {
+		ret = clk_prepare_enable(rtc->extclk);
+		if (ret) {
+			dev_err(dev, "failed to enable EXTCLK\n");
+			return ret;
+		}
+	}
+
 	res = platform_get_resource(pdev, IORESOURCE_IRQ, 0);
 	if (!res)
 		return -ENODEV;
@@ -142,38 +166,43 @@ static int gemini_rtc_probe(struct platform_device *pdev)
 	if (!rtc->rtc_base)
 		return -ENOMEM;
 
-	ret = devm_request_irq(dev, rtc->rtc_irq, gemini_rtc_interrupt,
+	ret = devm_request_irq(dev, rtc->rtc_irq, ftrtc010_rtc_interrupt,
 			       IRQF_SHARED, pdev->name, dev);
 	if (unlikely(ret))
 		return ret;
 
 	rtc->rtc_dev = rtc_device_register(pdev->name, dev,
-					   &gemini_rtc_ops, THIS_MODULE);
+					   &ftrtc010_rtc_ops, THIS_MODULE);
 	return PTR_ERR_OR_ZERO(rtc->rtc_dev);
 }
 
-static int gemini_rtc_remove(struct platform_device *pdev)
+static int ftrtc010_rtc_remove(struct platform_device *pdev)
 {
-	struct gemini_rtc *rtc = platform_get_drvdata(pdev);
+	struct ftrtc010_rtc *rtc = platform_get_drvdata(pdev);
 
+	if (!IS_ERR(rtc->extclk))
+		clk_disable_unprepare(rtc->extclk);
+	if (!IS_ERR(rtc->pclk))
+		clk_disable_unprepare(rtc->pclk);
 	rtc_device_unregister(rtc->rtc_dev);
 
 	return 0;
 }
 
-static const struct of_device_id gemini_rtc_dt_match[] = {
+static const struct of_device_id ftrtc010_rtc_dt_match[] = {
 	{ .compatible = "cortina,gemini-rtc" },
+	{ .compatible = "faraday,ftrtc010" },
 	{ }
 };
-MODULE_DEVICE_TABLE(of, gemini_rtc_dt_match);
+MODULE_DEVICE_TABLE(of, ftrtc010_rtc_dt_match);
 
-static struct platform_driver gemini_rtc_driver = {
+static struct platform_driver ftrtc010_rtc_driver = {
 	.driver		= {
 		.name	= DRV_NAME,
-		.of_match_table = gemini_rtc_dt_match,
+		.of_match_table = ftrtc010_rtc_dt_match,
 	},
-	.probe		= gemini_rtc_probe,
-	.remove		= gemini_rtc_remove,
+	.probe		= ftrtc010_rtc_probe,
+	.remove		= ftrtc010_rtc_remove,
 };
 
-module_platform_driver_probe(gemini_rtc_driver, gemini_rtc_probe);
+module_platform_driver_probe(ftrtc010_rtc_driver, ftrtc010_rtc_probe);
diff --git a/drivers/rtc/rtc-m41t80.c b/drivers/rtc/rtc-m41t80.c
index 5ec4653022ff..8940e9e43ea0 100644
--- a/drivers/rtc/rtc-m41t80.c
+++ b/drivers/rtc/rtc-m41t80.c
@@ -16,6 +16,7 @@
 #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
 
 #include <linux/bcd.h>
+#include <linux/clk-provider.h>
 #include <linux/i2c.h>
 #include <linux/init.h>
 #include <linux/kernel.h>
@@ -53,6 +54,8 @@
 #define M41T80_ALARM_REG_SIZE	\
 	(M41T80_REG_ALARM_SEC + 1 - M41T80_REG_ALARM_MON)
 
+#define M41T80_SQW_MAX_FREQ	32768
+
 #define M41T80_SEC_ST		BIT(7)	/* ST: Stop Bit */
 #define M41T80_ALMON_AFE	BIT(7)	/* AFE: AF Enable Bit */
 #define M41T80_ALMON_SQWE	BIT(6)	/* SQWE: SQW Enable Bit */
@@ -147,7 +150,11 @@ MODULE_DEVICE_TABLE(of, m41t80_of_match);
 
 struct m41t80_data {
 	unsigned long features;
+	struct i2c_client *client;
 	struct rtc_device *rtc;
+#ifdef CONFIG_COMMON_CLK
+	struct clk_hw sqw;
+#endif
 };
 
 static irqreturn_t m41t80_handle_irq(int irq, void *dev_id)
@@ -227,6 +234,7 @@ static int m41t80_get_datetime(struct i2c_client *client,
 /* Sets the given date and time to the real time clock. */
 static int m41t80_set_datetime(struct i2c_client *client, struct rtc_time *tm)
 {
+	struct m41t80_data *clientdata = i2c_get_clientdata(client);
 	unsigned char buf[8];
 	int err, flags;
 
@@ -242,6 +250,17 @@ static int m41t80_set_datetime(struct i2c_client *client, struct rtc_time *tm)
 	buf[M41T80_REG_YEAR] = bin2bcd(tm->tm_year - 100);
 	buf[M41T80_REG_WDAY] = tm->tm_wday;
 
+	/* If the square wave output is controlled in the weekday register */
+	if (clientdata->features & M41T80_FEATURE_SQ_ALT) {
+		int val;
+
+		val = i2c_smbus_read_byte_data(client, M41T80_REG_WDAY);
+		if (val < 0)
+			return val;
+
+		buf[M41T80_REG_WDAY] |= (val & 0xf0);
+	}
+
 	err = i2c_smbus_write_i2c_block_data(client, M41T80_REG_SSEC,
 					     sizeof(buf), buf);
 	if (err < 0) {
@@ -332,6 +351,9 @@ static int m41t80_set_alarm(struct device *dev, struct rtc_wkalrm *alrm)
 		return err;
 	}
 
+	/* Keep SQWE bit value */
+	alarmvals[0] |= (ret & M41T80_ALMON_SQWE);
+
 	ret = i2c_smbus_read_byte_data(client, M41T80_REG_FLAGS);
 	if (ret < 0)
 		return ret;
@@ -431,103 +453,175 @@ static ssize_t flags_show(struct device *dev,
 }
 static DEVICE_ATTR_RO(flags);
 
-static ssize_t sqwfreq_show(struct device *dev,
-			    struct device_attribute *attr, char *buf)
+static struct attribute *attrs[] = {
+	&dev_attr_flags.attr,
+	NULL,
+};
+
+static struct attribute_group attr_group = {
+	.attrs = attrs,
+};
+
+#ifdef CONFIG_COMMON_CLK
+#define sqw_to_m41t80_data(_hw) container_of(_hw, struct m41t80_data, sqw)
+
+static unsigned long m41t80_sqw_recalc_rate(struct clk_hw *hw,
+					    unsigned long parent_rate)
 {
-	struct i2c_client *client = to_i2c_client(dev);
-	struct m41t80_data *clientdata = i2c_get_clientdata(client);
-	int val, reg_sqw;
+	struct m41t80_data *m41t80 = sqw_to_m41t80_data(hw);
+	struct i2c_client *client = m41t80->client;
+	int reg_sqw = (m41t80->features & M41T80_FEATURE_SQ_ALT) ?
+		M41T80_REG_WDAY : M41T80_REG_SQW;
+	int ret = i2c_smbus_read_byte_data(client, reg_sqw);
+	unsigned long val = M41T80_SQW_MAX_FREQ;
 
-	if (!(clientdata->features & M41T80_FEATURE_SQ))
-		return -EINVAL;
+	if (ret < 0)
+		return 0;
 
-	reg_sqw = M41T80_REG_SQW;
-	if (clientdata->features & M41T80_FEATURE_SQ_ALT)
-		reg_sqw = M41T80_REG_WDAY;
-	val = i2c_smbus_read_byte_data(client, reg_sqw);
-	if (val < 0)
-		return val;
-	val = (val >> 4) & 0xf;
-	switch (val) {
-	case 0:
-		break;
-	case 1:
-		val = 32768;
-		break;
-	default:
-		val = 32768 >> val;
-	}
-	return sprintf(buf, "%d\n", val);
+	ret >>= 4;
+	if (ret == 0)
+		val = 0;
+	else if (ret > 1)
+		val = val / (1 << ret);
+
+	return val;
 }
 
-static ssize_t sqwfreq_store(struct device *dev,
-			     struct device_attribute *attr,
-			     const char *buf, size_t count)
+static long m41t80_sqw_round_rate(struct clk_hw *hw, unsigned long rate,
+				  unsigned long *prate)
 {
-	struct i2c_client *client = to_i2c_client(dev);
-	struct m41t80_data *clientdata = i2c_get_clientdata(client);
-	int almon, sqw, reg_sqw, rc;
-	unsigned long val;
+	int i, freq = M41T80_SQW_MAX_FREQ;
 
-	rc = kstrtoul(buf, 0, &val);
-	if (rc < 0)
-		return rc;
+	if (freq <= rate)
+		return freq;
 
-	if (!(clientdata->features & M41T80_FEATURE_SQ))
-		return -EINVAL;
+	for (i = 2; i <= ilog2(M41T80_SQW_MAX_FREQ); i++) {
+		freq /= 1 << i;
+		if (freq <= rate)
+			return freq;
+	}
 
-	if (val) {
-		if (!is_power_of_2(val))
+	return 0;
+}
+
+static int m41t80_sqw_set_rate(struct clk_hw *hw, unsigned long rate,
+			       unsigned long parent_rate)
+{
+	struct m41t80_data *m41t80 = sqw_to_m41t80_data(hw);
+	struct i2c_client *client = m41t80->client;
+	int reg_sqw = (m41t80->features & M41T80_FEATURE_SQ_ALT) ?
+		M41T80_REG_WDAY : M41T80_REG_SQW;
+	int reg, ret, val = 0;
+
+	if (rate) {
+		if (!is_power_of_2(rate))
 			return -EINVAL;
-		val = ilog2(val);
-		if (val == 15)
+		val = ilog2(rate);
+		if (val == ilog2(M41T80_SQW_MAX_FREQ))
 			val = 1;
-		else if (val < 14)
-			val = 15 - val;
+		else if (val < (ilog2(M41T80_SQW_MAX_FREQ) - 1))
+			val = ilog2(M41T80_SQW_MAX_FREQ) - val;
 		else
 			return -EINVAL;
 	}
-	/* disable SQW, set SQW frequency & re-enable */
-	almon = i2c_smbus_read_byte_data(client, M41T80_REG_ALARM_MON);
-	if (almon < 0)
-		return almon;
-	reg_sqw = M41T80_REG_SQW;
-	if (clientdata->features & M41T80_FEATURE_SQ_ALT)
-		reg_sqw = M41T80_REG_WDAY;
-	sqw = i2c_smbus_read_byte_data(client, reg_sqw);
-	if (sqw < 0)
-		return sqw;
-	sqw = (sqw & 0x0f) | (val << 4);
-
-	rc = i2c_smbus_write_byte_data(client, M41T80_REG_ALARM_MON,
-				       almon & ~M41T80_ALMON_SQWE);
-	if (rc < 0)
-		return rc;
 
-	if (val) {
-		rc = i2c_smbus_write_byte_data(client, reg_sqw, sqw);
-		if (rc < 0)
-			return rc;
+	reg = i2c_smbus_read_byte_data(client, reg_sqw);
+	if (reg < 0)
+		return reg;
 
-		rc = i2c_smbus_write_byte_data(client, M41T80_REG_ALARM_MON,
-					       almon | M41T80_ALMON_SQWE);
-		if (rc < 0)
-			return rc;
-	}
-	return count;
+	reg = (reg & 0x0f) | (val << 4);
+
+	ret = i2c_smbus_write_byte_data(client, reg_sqw, reg);
+	if (ret < 0)
+		return ret;
+
+	return -EINVAL;
 }
-static DEVICE_ATTR_RW(sqwfreq);
 
-static struct attribute *attrs[] = {
-	&dev_attr_flags.attr,
-	&dev_attr_sqwfreq.attr,
-	NULL,
-};
+static int m41t80_sqw_control(struct clk_hw *hw, bool enable)
+{
+	struct m41t80_data *m41t80 = sqw_to_m41t80_data(hw);
+	struct i2c_client *client = m41t80->client;
+	int ret = i2c_smbus_read_byte_data(client, M41T80_REG_ALARM_MON);
 
-static struct attribute_group attr_group = {
-	.attrs = attrs,
+	if (ret < 0)
+		return ret;
+
+	if (enable)
+		ret |= M41T80_ALMON_SQWE;
+	else
+		ret &= ~M41T80_ALMON_SQWE;
+
+	return i2c_smbus_write_byte_data(client, M41T80_REG_ALARM_MON, ret);
+}
+
+static int m41t80_sqw_prepare(struct clk_hw *hw)
+{
+	return m41t80_sqw_control(hw, 1);
+}
+
+static void m41t80_sqw_unprepare(struct clk_hw *hw)
+{
+	m41t80_sqw_control(hw, 0);
+}
+
+static int m41t80_sqw_is_prepared(struct clk_hw *hw)
+{
+	struct m41t80_data *m41t80 = sqw_to_m41t80_data(hw);
+	struct i2c_client *client = m41t80->client;
+	int ret = i2c_smbus_read_byte_data(client, M41T80_REG_ALARM_MON);
+
+	if (ret < 0)
+		return ret;
+
+	return !!(ret & M41T80_ALMON_SQWE);
+}
+
+static const struct clk_ops m41t80_sqw_ops = {
+	.prepare = m41t80_sqw_prepare,
+	.unprepare = m41t80_sqw_unprepare,
+	.is_prepared = m41t80_sqw_is_prepared,
+	.recalc_rate = m41t80_sqw_recalc_rate,
+	.round_rate = m41t80_sqw_round_rate,
+	.set_rate = m41t80_sqw_set_rate,
 };
 
+static struct clk *m41t80_sqw_register_clk(struct m41t80_data *m41t80)
+{
+	struct i2c_client *client = m41t80->client;
+	struct device_node *node = client->dev.of_node;
+	struct clk *clk;
+	struct clk_init_data init;
+	int ret;
+
+	/* First disable the clock */
+	ret = i2c_smbus_read_byte_data(client, M41T80_REG_ALARM_MON);
+	if (ret < 0)
+		return ERR_PTR(ret);
+	ret = i2c_smbus_write_byte_data(client, M41T80_REG_ALARM_MON,
+					ret & ~(M41T80_ALMON_SQWE));
+	if (ret < 0)
+		return ERR_PTR(ret);
+
+	init.name = "m41t80-sqw";
+	init.ops = &m41t80_sqw_ops;
+	init.flags = 0;
+	init.parent_names = NULL;
+	init.num_parents = 0;
+	m41t80->sqw.init = &init;
+
+	/* optional override of the clockname */
+	of_property_read_string(node, "clock-output-names", &init.name);
+
+	/* register the clock */
+	clk = clk_register(&client->dev, &m41t80->sqw);
+	if (!IS_ERR(clk))
+		of_clk_add_provider(node, of_clk_src_simple_get, clk);
+
+	return clk;
+}
+#endif
+
 #ifdef CONFIG_RTC_DRV_M41T80_WDT
 /*
  *****************************************************************************
@@ -845,6 +939,7 @@ static int m41t80_probe(struct i2c_client *client,
 	if (!m41t80_data)
 		return -ENOMEM;
 
+	m41t80_data->client = client;
 	if (client->dev.of_node)
 		m41t80_data->features = (unsigned long)
 			of_device_get_match_data(&client->dev);
@@ -937,6 +1032,10 @@ static int m41t80_probe(struct i2c_client *client,
 		}
 	}
 #endif
+#ifdef CONFIG_COMMON_CLK
+	if (m41t80_data->features & M41T80_FEATURE_SQ)
+		m41t80_sqw_register_clk(m41t80_data);
+#endif
 	return 0;
 }
 
diff --git a/drivers/rtc/rtc-mxc.c b/drivers/rtc/rtc-mxc.c
index 77319122642a..401f46d8f21b 100644
--- a/drivers/rtc/rtc-mxc.c
+++ b/drivers/rtc/rtc-mxc.c
@@ -43,17 +43,6 @@
 
 #define MAX_PIE_NUM     9
 #define MAX_PIE_FREQ    512
-static const u32 PIE_BIT_DEF[MAX_PIE_NUM][2] = {
-	{ 2,		RTC_2HZ_BIT },
-	{ 4,		RTC_SAM0_BIT },
-	{ 8,		RTC_SAM1_BIT },
-	{ 16,		RTC_SAM2_BIT },
-	{ 32,		RTC_SAM3_BIT },
-	{ 64,		RTC_SAM4_BIT },
-	{ 128,		RTC_SAM5_BIT },
-	{ 256,		RTC_SAM6_BIT },
-	{ MAX_PIE_FREQ,	RTC_SAM7_BIT },
-};
 
 #define MXC_RTC_TIME	0
 #define MXC_RTC_ALARM	1
diff --git a/drivers/rtc/rtc-nuc900.c b/drivers/rtc/rtc-nuc900.c
index b1b6b3041bfb..4ed81117cf5f 100644
--- a/drivers/rtc/rtc-nuc900.c
+++ b/drivers/rtc/rtc-nuc900.c
@@ -93,7 +93,7 @@ static int *check_rtc_access_enable(struct nuc900_rtc *nuc900_rtc)
 	__raw_writel(AERPOWERON, nuc900_rtc->rtc_reg + REG_RTC_AER);
 
 	while (!(__raw_readl(nuc900_rtc->rtc_reg + REG_RTC_AER) & AERRWENB)
-								&& timeout--)
+								&& --timeout)
 		mdelay(1);
 
 	if (!timeout)
diff --git a/drivers/rtc/rtc-opal.c b/drivers/rtc/rtc-opal.c
index ea20f627dabe..e2a946c0e667 100644
--- a/drivers/rtc/rtc-opal.c
+++ b/drivers/rtc/rtc-opal.c
@@ -142,6 +142,16 @@ static int opal_get_tpo_time(struct device *dev, struct rtc_wkalrm *alarm)
 
 	y_m_d = be32_to_cpu(__y_m_d);
 	h_m_s_ms = ((u64)be32_to_cpu(__h_m) << 32);
+
+	/* check if no alarm is set */
+	if (y_m_d == 0 && h_m_s_ms == 0) {
+		pr_debug("No alarm is set\n");
+		rc = -ENOENT;
+		goto exit;
+	} else {
+		pr_debug("Alarm set to %x %llx\n", y_m_d, h_m_s_ms);
+	}
+
 	opal_to_tm(y_m_d, h_m_s_ms, &alarm->time);
 
 exit:
@@ -157,7 +167,14 @@ static int opal_set_tpo_time(struct device *dev, struct rtc_wkalrm *alarm)
 	u32 y_m_d = 0;
 	int token, rc;
 
-	tm_to_opal(&alarm->time, &y_m_d, &h_m_s_ms);
+	/* if alarm is enabled */
+	if (alarm->enabled) {
+		tm_to_opal(&alarm->time, &y_m_d, &h_m_s_ms);
+		pr_debug("Alarm set to %x %llx\n", y_m_d, h_m_s_ms);
+
+	} else {
+		pr_debug("Alarm getting disabled\n");
+	}
 
 	token = opal_async_get_token_interruptible();
 	if (token < 0) {
@@ -190,6 +207,18 @@ exit:
 	return rc;
 }
 
+int opal_tpo_alarm_irq_enable(struct device *dev, unsigned int enabled)
+{
+	struct rtc_wkalrm alarm = { .enabled = 0 };
+
+	/*
+	 * TPO is automatically enabled when opal_set_tpo_time() is called with
+	 * non-zero rtc-time. We only handle disable case which needs to be
+	 * explicitly told to opal.
+	 */
+	return enabled ? 0 : opal_set_tpo_time(dev, &alarm);
+}
+
 static struct rtc_class_ops opal_rtc_ops = {
 	.read_time	= opal_get_rtc_time,
 	.set_time	= opal_set_rtc_time,
@@ -205,6 +234,7 @@ static int opal_rtc_probe(struct platform_device *pdev)
 		device_set_wakeup_capable(&pdev->dev, true);
 		opal_rtc_ops.read_alarm	= opal_get_tpo_time;
 		opal_rtc_ops.set_alarm = opal_set_tpo_time;
+		opal_rtc_ops.alarm_irq_enable = opal_tpo_alarm_irq_enable;
 	}
 
 	rtc = devm_rtc_device_register(&pdev->dev, DRVNAME, &opal_rtc_ops,
diff --git a/drivers/rtc/rtc-pcf8563.c b/drivers/rtc/rtc-pcf8563.c
index 1227ceab61ee..cea6ea4df970 100644
--- a/drivers/rtc/rtc-pcf8563.c
+++ b/drivers/rtc/rtc-pcf8563.c
@@ -606,7 +606,7 @@ static int pcf8563_probe(struct i2c_client *client,
 		err = devm_request_threaded_irq(&client->dev, client->irq,
 				NULL, pcf8563_irq,
 				IRQF_SHARED|IRQF_ONESHOT|IRQF_TRIGGER_FALLING,
-				pcf8563->rtc->name, client);
+				pcf8563_driver.driver.name, client);
 		if (err) {
 			dev_err(&client->dev, "unable to request IRQ %d\n",
 								client->irq);
diff --git a/drivers/rtc/rtc-rv8803.c b/drivers/rtc/rtc-rv8803.c
index 9ad97ab29866..aae2576741a6 100644
--- a/drivers/rtc/rtc-rv8803.c
+++ b/drivers/rtc/rtc-rv8803.c
@@ -68,6 +68,7 @@ struct rv8803_data {
 	struct mutex flags_lock;
 	u8 ctrl;
 	enum rv8803_type type;
+	struct nvmem_config nvmem_cfg;
 };
 
 static int rv8803_read_reg(const struct i2c_client *client, u8 reg)
@@ -460,48 +461,32 @@ static int rv8803_ioctl(struct device *dev, unsigned int cmd, unsigned long arg)
 	}
 }
 
-static ssize_t rv8803_nvram_write(struct file *filp, struct kobject *kobj,
-				  struct bin_attribute *attr,
-				  char *buf, loff_t off, size_t count)
+static int rv8803_nvram_write(void *priv, unsigned int offset, void *val,
+			      size_t bytes)
 {
-	struct device *dev = kobj_to_dev(kobj);
-	struct i2c_client *client = to_i2c_client(dev);
 	int ret;
 
-	ret = rv8803_write_reg(client, RV8803_RAM, buf[0]);
+	ret = rv8803_write_reg(priv, RV8803_RAM, *(u8 *)val);
 	if (ret)
 		return ret;
 
-	return 1;
+	return 0;
 }
 
-static ssize_t rv8803_nvram_read(struct file *filp, struct kobject *kobj,
-				 struct bin_attribute *attr,
-				 char *buf, loff_t off, size_t count)
+static int rv8803_nvram_read(void *priv, unsigned int offset,
+			     void *val, size_t bytes)
 {
-	struct device *dev = kobj_to_dev(kobj);
-	struct i2c_client *client = to_i2c_client(dev);
 	int ret;
 
-	ret = rv8803_read_reg(client, RV8803_RAM);
+	ret = rv8803_read_reg(priv, RV8803_RAM);
 	if (ret < 0)
 		return ret;
 
-	buf[0] = ret;
+	*(u8 *)val = ret;
 
-	return 1;
+	return 0;
 }
 
-static struct bin_attribute rv8803_nvram_attr = {
-	.attr = {
-		.name = "nvram",
-		.mode = S_IRUGO | S_IWUSR,
-	},
-	.size = 1,
-	.read = rv8803_nvram_read,
-	.write = rv8803_nvram_write,
-};
-
 static struct rtc_class_ops rv8803_rtc_ops = {
 	.read_time = rv8803_get_time,
 	.set_time = rv8803_set_time,
@@ -577,6 +562,11 @@ static int rv8803_probe(struct i2c_client *client,
 	if (flags & RV8803_FLAG_AF)
 		dev_warn(&client->dev, "An alarm maybe have been missed.\n");
 
+	rv8803->rtc = devm_rtc_allocate_device(&client->dev);
+	if (IS_ERR(rv8803->rtc)) {
+		return PTR_ERR(rv8803->rtc);
+	}
+
 	if (client->irq > 0) {
 		err = devm_request_threaded_irq(&client->dev, client->irq,
 						NULL, rv8803_handle_irq,
@@ -592,12 +582,20 @@ static int rv8803_probe(struct i2c_client *client,
 		}
 	}
 
-	rv8803->rtc = devm_rtc_device_register(&client->dev, client->name,
-					       &rv8803_rtc_ops, THIS_MODULE);
-	if (IS_ERR(rv8803->rtc)) {
-		dev_err(&client->dev, "unable to register the class device\n");
-		return PTR_ERR(rv8803->rtc);
-	}
+	rv8803->nvmem_cfg.name = "rv8803_nvram",
+	rv8803->nvmem_cfg.word_size = 1,
+	rv8803->nvmem_cfg.stride = 1,
+	rv8803->nvmem_cfg.size = 1,
+	rv8803->nvmem_cfg.reg_read = rv8803_nvram_read,
+	rv8803->nvmem_cfg.reg_write = rv8803_nvram_write,
+	rv8803->nvmem_cfg.priv = client;
+
+	rv8803->rtc->ops = &rv8803_rtc_ops;
+	rv8803->rtc->nvmem_config = &rv8803->nvmem_cfg;
+	rv8803->rtc->nvram_old_abi = true;
+	err = rtc_register_device(rv8803->rtc);
+	if (err)
+		return err;
 
 	err = rv8803_write_reg(rv8803->client, RV8803_EXT, RV8803_EXT_WADA);
 	if (err)
@@ -609,22 +607,11 @@ static int rv8803_probe(struct i2c_client *client,
 		return err;
 	}
 
-	err = device_create_bin_file(&client->dev, &rv8803_nvram_attr);
-	if (err)
-		return err;
-
 	rv8803->rtc->max_user_freq = 1;
 
 	return 0;
 }
 
-static int rv8803_remove(struct i2c_client *client)
-{
-	device_remove_bin_file(&client->dev, &rv8803_nvram_attr);
-
-	return 0;
-}
-
 static const struct i2c_device_id rv8803_id[] = {
 	{ "rv8803", rv_8803 },
 	{ "rx8900", rx_8900 },
@@ -651,7 +638,6 @@ static struct i2c_driver rv8803_driver = {
 		.of_match_table = of_match_ptr(rv8803_of_match),
 	},
 	.probe		= rv8803_probe,
-	.remove		= rv8803_remove,
 	.id_table	= rv8803_id,
 };
 module_i2c_driver(rv8803_driver);
diff --git a/drivers/rtc/rtc-s3c.c b/drivers/rtc/rtc-s3c.c
index d44fb34df8fe..a8992c227f61 100644
--- a/drivers/rtc/rtc-s3c.c
+++ b/drivers/rtc/rtc-s3c.c
@@ -41,7 +41,7 @@ struct s3c_rtc {
 	struct clk *rtc_src_clk;
 	bool clk_disabled;
 
-	struct s3c_rtc_data *data;
+	const struct s3c_rtc_data *data;
 
 	int irq_alarm;
 	int irq_tick;
@@ -49,7 +49,8 @@ struct s3c_rtc {
 	spinlock_t pie_lock;
 	spinlock_t alarm_clk_lock;
 
-	int ticnt_save, ticnt_en_save;
+	int ticnt_save;
+	int ticnt_en_save;
 	bool wake_en;
 };
 
@@ -67,18 +68,32 @@ struct s3c_rtc_data {
 	void (*disable) (struct s3c_rtc *info);
 };
 
-static void s3c_rtc_enable_clk(struct s3c_rtc *info)
+static int s3c_rtc_enable_clk(struct s3c_rtc *info)
 {
 	unsigned long irq_flags;
+	int ret = 0;
 
 	spin_lock_irqsave(&info->alarm_clk_lock, irq_flags);
+
 	if (info->clk_disabled) {
-		clk_enable(info->rtc_clk);
-		if (info->data->needs_src_clk)
-			clk_enable(info->rtc_src_clk);
+		ret = clk_enable(info->rtc_clk);
+		if (ret)
+			goto out;
+
+		if (info->data->needs_src_clk) {
+			ret = clk_enable(info->rtc_src_clk);
+			if (ret) {
+				clk_disable(info->rtc_clk);
+				goto out;
+			}
+		}
 		info->clk_disabled = false;
 	}
+
+out:
 	spin_unlock_irqrestore(&info->alarm_clk_lock, irq_flags);
+
+	return ret;
 }
 
 static void s3c_rtc_disable_clk(struct s3c_rtc *info)
@@ -121,10 +136,13 @@ static int s3c_rtc_setaie(struct device *dev, unsigned int enabled)
 {
 	struct s3c_rtc *info = dev_get_drvdata(dev);
 	unsigned int tmp;
+	int ret;
 
 	dev_dbg(info->dev, "%s: aie=%d\n", __func__, enabled);
 
-	s3c_rtc_enable_clk(info);
+	ret = s3c_rtc_enable_clk(info);
+	if (ret)
+		return ret;
 
 	tmp = readb(info->base + S3C2410_RTCALM) & ~S3C2410_RTCALM_ALMEN;
 
@@ -135,10 +153,13 @@ static int s3c_rtc_setaie(struct device *dev, unsigned int enabled)
 
 	s3c_rtc_disable_clk(info);
 
-	if (enabled)
-		s3c_rtc_enable_clk(info);
-	else
+	if (enabled) {
+		ret = s3c_rtc_enable_clk(info);
+		if (ret)
+			return ret;
+	} else {
 		s3c_rtc_disable_clk(info);
+	}
 
 	return 0;
 }
@@ -146,10 +167,14 @@ static int s3c_rtc_setaie(struct device *dev, unsigned int enabled)
 /* Set RTC frequency */
 static int s3c_rtc_setfreq(struct s3c_rtc *info, int freq)
 {
+	int ret;
+
 	if (!is_power_of_2(freq))
 		return -EINVAL;
 
-	s3c_rtc_enable_clk(info);
+	ret = s3c_rtc_enable_clk(info);
+	if (ret)
+		return ret;
 	spin_lock_irq(&info->pie_lock);
 
 	if (info->data->set_freq)
@@ -166,10 +191,13 @@ static int s3c_rtc_gettime(struct device *dev, struct rtc_time *rtc_tm)
 {
 	struct s3c_rtc *info = dev_get_drvdata(dev);
 	unsigned int have_retried = 0;
+	int ret;
 
-	s3c_rtc_enable_clk(info);
+	ret = s3c_rtc_enable_clk(info);
+	if (ret)
+		return ret;
 
- retry_get_time:
+retry_get_time:
 	rtc_tm->tm_min  = readb(info->base + S3C2410_RTCMIN);
 	rtc_tm->tm_hour = readb(info->base + S3C2410_RTCHOUR);
 	rtc_tm->tm_mday = readb(info->base + S3C2410_RTCDATE);
@@ -199,8 +227,8 @@ static int s3c_rtc_gettime(struct device *dev, struct rtc_time *rtc_tm)
 	rtc_tm->tm_year += 100;
 
 	dev_dbg(dev, "read time %04d.%02d.%02d %02d:%02d:%02d\n",
-		 1900 + rtc_tm->tm_year, rtc_tm->tm_mon, rtc_tm->tm_mday,
-		 rtc_tm->tm_hour, rtc_tm->tm_min, rtc_tm->tm_sec);
+		1900 + rtc_tm->tm_year, rtc_tm->tm_mon, rtc_tm->tm_mday,
+		rtc_tm->tm_hour, rtc_tm->tm_min, rtc_tm->tm_sec);
 
 	rtc_tm->tm_mon -= 1;
 
@@ -211,10 +239,11 @@ static int s3c_rtc_settime(struct device *dev, struct rtc_time *tm)
 {
 	struct s3c_rtc *info = dev_get_drvdata(dev);
 	int year = tm->tm_year - 100;
+	int ret;
 
 	dev_dbg(dev, "set time %04d.%02d.%02d %02d:%02d:%02d\n",
-		 1900 + tm->tm_year, tm->tm_mon, tm->tm_mday,
-		 tm->tm_hour, tm->tm_min, tm->tm_sec);
+		1900 + tm->tm_year, tm->tm_mon, tm->tm_mday,
+		tm->tm_hour, tm->tm_min, tm->tm_sec);
 
 	/* we get around y2k by simply not supporting it */
 
@@ -223,7 +252,9 @@ static int s3c_rtc_settime(struct device *dev, struct rtc_time *tm)
 		return -EINVAL;
 	}
 
-	s3c_rtc_enable_clk(info);
+	ret = s3c_rtc_enable_clk(info);
+	if (ret)
+		return ret;
 
 	writeb(bin2bcd(tm->tm_sec),  info->base + S3C2410_RTCSEC);
 	writeb(bin2bcd(tm->tm_min),  info->base + S3C2410_RTCMIN);
@@ -242,8 +273,11 @@ static int s3c_rtc_getalarm(struct device *dev, struct rtc_wkalrm *alrm)
 	struct s3c_rtc *info = dev_get_drvdata(dev);
 	struct rtc_time *alm_tm = &alrm->time;
 	unsigned int alm_en;
+	int ret;
 
-	s3c_rtc_enable_clk(info);
+	ret = s3c_rtc_enable_clk(info);
+	if (ret)
+		return ret;
 
 	alm_tm->tm_sec  = readb(info->base + S3C2410_ALMSEC);
 	alm_tm->tm_min  = readb(info->base + S3C2410_ALMMIN);
@@ -259,9 +293,9 @@ static int s3c_rtc_getalarm(struct device *dev, struct rtc_wkalrm *alrm)
 	alrm->enabled = (alm_en & S3C2410_RTCALM_ALMEN) ? 1 : 0;
 
 	dev_dbg(dev, "read alarm %d, %04d.%02d.%02d %02d:%02d:%02d\n",
-		 alm_en,
-		 1900 + alm_tm->tm_year, alm_tm->tm_mon, alm_tm->tm_mday,
-		 alm_tm->tm_hour, alm_tm->tm_min, alm_tm->tm_sec);
+		alm_en,
+		1900 + alm_tm->tm_year, alm_tm->tm_mon, alm_tm->tm_mday,
+		alm_tm->tm_hour, alm_tm->tm_min, alm_tm->tm_sec);
 
 	/* decode the alarm enable field */
 	if (alm_en & S3C2410_RTCALM_SECEN)
@@ -292,14 +326,17 @@ static int s3c_rtc_setalarm(struct device *dev, struct rtc_wkalrm *alrm)
 	struct s3c_rtc *info = dev_get_drvdata(dev);
 	struct rtc_time *tm = &alrm->time;
 	unsigned int alrm_en;
+	int ret;
 	int year = tm->tm_year - 100;
 
 	dev_dbg(dev, "s3c_rtc_setalarm: %d, %04d.%02d.%02d %02d:%02d:%02d\n",
-		 alrm->enabled,
-		 1900 + tm->tm_year, tm->tm_mon + 1, tm->tm_mday,
-		 tm->tm_hour, tm->tm_min, tm->tm_sec);
+		alrm->enabled,
+		1900 + tm->tm_year, tm->tm_mon + 1, tm->tm_mday,
+		tm->tm_hour, tm->tm_min, tm->tm_sec);
 
-	s3c_rtc_enable_clk(info);
+	ret = s3c_rtc_enable_clk(info);
+	if (ret)
+		return ret;
 
 	alrm_en = readb(info->base + S3C2410_RTCALM) & S3C2410_RTCALM_ALMEN;
 	writeb(0x00, info->base + S3C2410_RTCALM);
@@ -348,8 +385,11 @@ static int s3c_rtc_setalarm(struct device *dev, struct rtc_wkalrm *alrm)
 static int s3c_rtc_proc(struct device *dev, struct seq_file *seq)
 {
 	struct s3c_rtc *info = dev_get_drvdata(dev);
+	int ret;
 
-	s3c_rtc_enable_clk(info);
+	ret = s3c_rtc_enable_clk(info);
+	if (ret)
+		return ret;
 
 	if (info->data->enable_tick)
 		info->data->enable_tick(info, seq);
@@ -378,8 +418,7 @@ static void s3c24xx_rtc_enable(struct s3c_rtc *info)
 		dev_info(info->dev, "rtc disabled, re-enabling\n");
 
 		tmp = readw(info->base + S3C2410_RTCCON);
-		writew(tmp | S3C2410_RTCCON_RTCEN,
-			info->base + S3C2410_RTCCON);
+		writew(tmp | S3C2410_RTCCON_RTCEN, info->base + S3C2410_RTCCON);
 	}
 
 	if (con & S3C2410_RTCCON_CNTSEL) {
@@ -387,7 +426,7 @@ static void s3c24xx_rtc_enable(struct s3c_rtc *info)
 
 		tmp = readw(info->base + S3C2410_RTCCON);
 		writew(tmp & ~S3C2410_RTCCON_CNTSEL,
-			info->base + S3C2410_RTCCON);
+		       info->base + S3C2410_RTCCON);
 	}
 
 	if (con & S3C2410_RTCCON_CLKRST) {
@@ -395,7 +434,7 @@ static void s3c24xx_rtc_enable(struct s3c_rtc *info)
 
 		tmp = readw(info->base + S3C2410_RTCCON);
 		writew(tmp & ~S3C2410_RTCCON_CLKRST,
-			info->base + S3C2410_RTCCON);
+		       info->base + S3C2410_RTCCON);
 	}
 }
 
@@ -437,12 +476,12 @@ static int s3c_rtc_remove(struct platform_device *pdev)
 
 static const struct of_device_id s3c_rtc_dt_match[];
 
-static struct s3c_rtc_data *s3c_rtc_get_data(struct platform_device *pdev)
+static const struct s3c_rtc_data *s3c_rtc_get_data(struct platform_device *pdev)
 {
 	const struct of_device_id *match;
 
 	match = of_match_node(s3c_rtc_dt_match, pdev->dev.of_node);
-	return (struct s3c_rtc_data *)match->data;
+	return match->data;
 }
 
 static int s3c_rtc_probe(struct platform_device *pdev)
@@ -481,7 +520,7 @@ static int s3c_rtc_probe(struct platform_device *pdev)
 	}
 
 	dev_dbg(&pdev->dev, "s3c2410_rtc: tick irq %d, alarm irq %d\n",
-		 info->irq_tick, info->irq_alarm);
+		info->irq_tick, info->irq_alarm);
 
 	/* get the memory region */
 	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
@@ -498,7 +537,9 @@ static int s3c_rtc_probe(struct platform_device *pdev)
 			dev_dbg(&pdev->dev, "probe deferred due to missing rtc clk\n");
 		return ret;
 	}
-	clk_prepare_enable(info->rtc_clk);
+	ret = clk_prepare_enable(info->rtc_clk);
+	if (ret)
+		return ret;
 
 	if (info->data->needs_src_clk) {
 		info->rtc_src_clk = devm_clk_get(&pdev->dev, "rtc_src");
@@ -510,10 +551,11 @@ static int s3c_rtc_probe(struct platform_device *pdev)
 			else
 				dev_dbg(&pdev->dev,
 					"probe deferred due to missing rtc src clk\n");
-			clk_disable_unprepare(info->rtc_clk);
-			return ret;
+			goto err_src_clk;
 		}
-		clk_prepare_enable(info->rtc_src_clk);
+		ret = clk_prepare_enable(info->rtc_src_clk);
+		if (ret)
+			goto err_src_clk;
 	}
 
 	/* check to see if everything is setup correctly */
@@ -521,7 +563,7 @@ static int s3c_rtc_probe(struct platform_device *pdev)
 		info->data->enable(info);
 
 	dev_dbg(&pdev->dev, "s3c2410_rtc: RTCCON=%02x\n",
-		 readw(info->base + S3C2410_RTCCON));
+		readw(info->base + S3C2410_RTCCON));
 
 	device_init_wakeup(&pdev->dev, 1);
 
@@ -541,7 +583,7 @@ static int s3c_rtc_probe(struct platform_device *pdev)
 
 	/* register RTC and exit */
 	info->rtc = devm_rtc_device_register(&pdev->dev, "s3c", &s3c_rtcops,
-				  THIS_MODULE);
+					     THIS_MODULE);
 	if (IS_ERR(info->rtc)) {
 		dev_err(&pdev->dev, "cannot attach rtc\n");
 		ret = PTR_ERR(info->rtc);
@@ -549,14 +591,14 @@ static int s3c_rtc_probe(struct platform_device *pdev)
 	}
 
 	ret = devm_request_irq(&pdev->dev, info->irq_alarm, s3c_rtc_alarmirq,
-			  0,  "s3c2410-rtc alarm", info);
+			       0, "s3c2410-rtc alarm", info);
 	if (ret) {
 		dev_err(&pdev->dev, "IRQ%d error %d\n", info->irq_alarm, ret);
 		goto err_nortc;
 	}
 
 	ret = devm_request_irq(&pdev->dev, info->irq_tick, s3c_rtc_tickirq,
-			  0,  "s3c2410-rtc tick", info);
+			       0, "s3c2410-rtc tick", info);
 	if (ret) {
 		dev_err(&pdev->dev, "IRQ%d error %d\n", info->irq_tick, ret);
 		goto err_nortc;
@@ -569,12 +611,13 @@ static int s3c_rtc_probe(struct platform_device *pdev)
 
 	return 0;
 
- err_nortc:
+err_nortc:
 	if (info->data->disable)
 		info->data->disable(info);
 
 	if (info->data->needs_src_clk)
 		clk_disable_unprepare(info->rtc_src_clk);
+err_src_clk:
 	clk_disable_unprepare(info->rtc_clk);
 
 	return ret;
@@ -585,8 +628,11 @@ static int s3c_rtc_probe(struct platform_device *pdev)
 static int s3c_rtc_suspend(struct device *dev)
 {
 	struct s3c_rtc *info = dev_get_drvdata(dev);
+	int ret;
 
-	s3c_rtc_enable_clk(info);
+	ret = s3c_rtc_enable_clk(info);
+	if (ret)
+		return ret;
 
 	/* save TICNT for anyone using periodic interrupts */
 	if (info->data->save_tick_cnt)
@@ -747,8 +793,7 @@ static void s3c6410_rtc_restore_tick_cnt(struct s3c_rtc *info)
 	writel(info->ticnt_save, info->base + S3C2410_TICNT);
 	if (info->ticnt_en_save) {
 		con = readw(info->base + S3C2410_RTCCON);
-		writew(con | info->ticnt_en_save,
-				info->base + S3C2410_RTCCON);
+		writew(con | info->ticnt_en_save, info->base + S3C2410_RTCCON);
 	}
 }
 
@@ -802,19 +847,19 @@ static struct s3c_rtc_data const s3c6410_rtc_data = {
 static const struct of_device_id s3c_rtc_dt_match[] = {
 	{
 		.compatible = "samsung,s3c2410-rtc",
-		.data = (void *)&s3c2410_rtc_data,
+		.data = &s3c2410_rtc_data,
 	}, {
 		.compatible = "samsung,s3c2416-rtc",
-		.data = (void *)&s3c2416_rtc_data,
+		.data = &s3c2416_rtc_data,
 	}, {
 		.compatible = "samsung,s3c2443-rtc",
-		.data = (void *)&s3c2443_rtc_data,
+		.data = &s3c2443_rtc_data,
 	}, {
 		.compatible = "samsung,s3c6410-rtc",
-		.data = (void *)&s3c6410_rtc_data,
+		.data = &s3c6410_rtc_data,
 	}, {
 		.compatible = "samsung,exynos3250-rtc",
-		.data = (void *)&s3c6410_rtc_data,
+		.data = &s3c6410_rtc_data,
 	},
 	{ /* sentinel */ },
 };
diff --git a/drivers/rtc/rtc-st-lpc.c b/drivers/rtc/rtc-st-lpc.c
index 74c0a336ceea..82b0af159a28 100644
--- a/drivers/rtc/rtc-st-lpc.c
+++ b/drivers/rtc/rtc-st-lpc.c
@@ -99,7 +99,7 @@ static int st_rtc_read_time(struct device *dev, struct rtc_time *tm)
 
 	lpt = ((unsigned long long)lpt_msb << 32) | lpt_lsb;
 	do_div(lpt, rtc->clkrate);
-	rtc_time_to_tm(lpt, tm);
+	rtc_time64_to_tm(lpt, tm);
 
 	return 0;
 }
@@ -107,13 +107,10 @@ static int st_rtc_read_time(struct device *dev, struct rtc_time *tm)
 static int st_rtc_set_time(struct device *dev, struct rtc_time *tm)
 {
 	struct st_rtc *rtc = dev_get_drvdata(dev);
-	unsigned long long lpt;
-	unsigned long secs, flags;
-	int ret;
+	unsigned long long lpt, secs;
+	unsigned long flags;
 
-	ret = rtc_tm_to_time(tm, &secs);
-	if (ret)
-		return ret;
+	secs = rtc_tm_to_time64(tm);
 
 	lpt = (unsigned long long)secs * rtc->clkrate;
 
@@ -161,13 +158,13 @@ static int st_rtc_set_alarm(struct device *dev, struct rtc_wkalrm *t)
 {
 	struct st_rtc *rtc = dev_get_drvdata(dev);
 	struct rtc_time now;
-	unsigned long now_secs;
-	unsigned long alarm_secs;
+	unsigned long long now_secs;
+	unsigned long long alarm_secs;
 	unsigned long long lpa;
 
 	st_rtc_read_time(dev, &now);
-	rtc_tm_to_time(&now, &now_secs);
-	rtc_tm_to_time(&t->time, &alarm_secs);
+	now_secs = rtc_tm_to_time64(&now);
+	alarm_secs = rtc_tm_to_time64(&t->time);
 
 	/* Invalid alarm time */
 	if (now_secs > alarm_secs)
diff --git a/drivers/rtc/rtc-stm32.c b/drivers/rtc/rtc-stm32.c
index bd57eb1029e1..3a5c3d7d0c77 100644
--- a/drivers/rtc/rtc-stm32.c
+++ b/drivers/rtc/rtc-stm32.c
@@ -94,11 +94,17 @@
 /* STM32_PWR_CR bit field */
 #define PWR_CR_DBP			BIT(8)
 
+struct stm32_rtc_data {
+	bool has_pclk;
+};
+
 struct stm32_rtc {
 	struct rtc_device *rtc_dev;
 	void __iomem *base;
 	struct regmap *dbp;
-	struct clk *ck_rtc;
+	struct stm32_rtc_data *data;
+	struct clk *pclk;
+	struct clk *rtc_ck;
 	int irq_alarm;
 };
 
@@ -122,9 +128,9 @@ static int stm32_rtc_enter_init_mode(struct stm32_rtc *rtc)
 		writel_relaxed(isr, rtc->base + STM32_RTC_ISR);
 
 		/*
-		 * It takes around 2 ck_rtc clock cycles to enter in
+		 * It takes around 2 rtc_ck clock cycles to enter in
 		 * initialization phase mode (and have INITF flag set). As
-		 * slowest ck_rtc frequency may be 32kHz and highest should be
+		 * slowest rtc_ck frequency may be 32kHz and highest should be
 		 * 1MHz, we poll every 10 us with a timeout of 100ms.
 		 */
 		return readl_relaxed_poll_timeout_atomic(
@@ -153,7 +159,7 @@ static int stm32_rtc_wait_sync(struct stm32_rtc *rtc)
 
 	/*
 	 * Wait for RSF to be set to ensure the calendar registers are
-	 * synchronised, it takes around 2 ck_rtc clock cycles
+	 * synchronised, it takes around 2 rtc_ck clock cycles
 	 */
 	return readl_relaxed_poll_timeout_atomic(rtc->base + STM32_RTC_ISR,
 						 isr,
@@ -456,7 +462,7 @@ static int stm32_rtc_set_alarm(struct device *dev, struct rtc_wkalrm *alrm)
 
 	/*
 	 * Poll Alarm write flag to be sure that Alarm update is allowed: it
-	 * takes around 2 ck_rtc clock cycles
+	 * takes around 2 rtc_ck clock cycles
 	 */
 	ret = readl_relaxed_poll_timeout_atomic(rtc->base + STM32_RTC_ISR,
 						isr,
@@ -490,8 +496,17 @@ static const struct rtc_class_ops stm32_rtc_ops = {
 	.alarm_irq_enable = stm32_rtc_alarm_irq_enable,
 };
 
+static const struct stm32_rtc_data stm32_rtc_data = {
+	.has_pclk = false,
+};
+
+static const struct stm32_rtc_data stm32h7_rtc_data = {
+	.has_pclk = true,
+};
+
 static const struct of_device_id stm32_rtc_of_match[] = {
-	{ .compatible = "st,stm32-rtc" },
+	{ .compatible = "st,stm32-rtc", .data = &stm32_rtc_data },
+	{ .compatible = "st,stm32h7-rtc", .data = &stm32h7_rtc_data },
 	{}
 };
 MODULE_DEVICE_TABLE(of, stm32_rtc_of_match);
@@ -503,7 +518,7 @@ static int stm32_rtc_init(struct platform_device *pdev,
 	unsigned int rate;
 	int ret = 0;
 
-	rate = clk_get_rate(rtc->ck_rtc);
+	rate = clk_get_rate(rtc->rtc_ck);
 
 	/* Find prediv_a and prediv_s to obtain the 1Hz calendar clock */
 	pred_a_max = STM32_RTC_PRER_PRED_A >> STM32_RTC_PRER_PRED_A_SHIFT;
@@ -524,7 +539,7 @@ static int stm32_rtc_init(struct platform_device *pdev,
 		pred_a = pred_a_max;
 		pred_s = (rate / (pred_a + 1)) - 1;
 
-		dev_warn(&pdev->dev, "ck_rtc is %s\n",
+		dev_warn(&pdev->dev, "rtc_ck is %s\n",
 			 (rate < ((pred_a + 1) * (pred_s + 1))) ?
 			 "fast" : "slow");
 	}
@@ -561,6 +576,7 @@ static int stm32_rtc_probe(struct platform_device *pdev)
 {
 	struct stm32_rtc *rtc;
 	struct resource *res;
+	const struct of_device_id *match;
 	int ret;
 
 	rtc = devm_kzalloc(&pdev->dev, sizeof(*rtc), GFP_KERNEL);
@@ -579,15 +595,34 @@ static int stm32_rtc_probe(struct platform_device *pdev)
 		return PTR_ERR(rtc->dbp);
 	}
 
-	rtc->ck_rtc = devm_clk_get(&pdev->dev, NULL);
-	if (IS_ERR(rtc->ck_rtc)) {
-		dev_err(&pdev->dev, "no ck_rtc clock");
-		return PTR_ERR(rtc->ck_rtc);
+	match = of_match_device(stm32_rtc_of_match, &pdev->dev);
+	rtc->data = (struct stm32_rtc_data *)match->data;
+
+	if (!rtc->data->has_pclk) {
+		rtc->pclk = NULL;
+		rtc->rtc_ck = devm_clk_get(&pdev->dev, NULL);
+	} else {
+		rtc->pclk = devm_clk_get(&pdev->dev, "pclk");
+		if (IS_ERR(rtc->pclk)) {
+			dev_err(&pdev->dev, "no pclk clock");
+			return PTR_ERR(rtc->pclk);
+		}
+		rtc->rtc_ck = devm_clk_get(&pdev->dev, "rtc_ck");
+	}
+	if (IS_ERR(rtc->rtc_ck)) {
+		dev_err(&pdev->dev, "no rtc_ck clock");
+		return PTR_ERR(rtc->rtc_ck);
+	}
+
+	if (rtc->data->has_pclk) {
+		ret = clk_prepare_enable(rtc->pclk);
+		if (ret)
+			return ret;
 	}
 
-	ret = clk_prepare_enable(rtc->ck_rtc);
+	ret = clk_prepare_enable(rtc->rtc_ck);
 	if (ret)
-		return ret;
+		goto err;
 
 	regmap_update_bits(rtc->dbp, PWR_CR, PWR_CR_DBP, PWR_CR_DBP);
 
@@ -595,7 +630,7 @@ static int stm32_rtc_probe(struct platform_device *pdev)
 	 * After a system reset, RTC_ISR.INITS flag can be read to check if
 	 * the calendar has been initalized or not. INITS flag is reset by a
 	 * power-on reset (no vbat, no power-supply). It is not reset if
-	 * ck_rtc parent clock has changed (so RTC prescalers need to be
+	 * rtc_ck parent clock has changed (so RTC prescalers need to be
 	 * changed). That's why we cannot rely on this flag to know if RTC
 	 * init has to be done.
 	 */
@@ -646,7 +681,9 @@ static int stm32_rtc_probe(struct platform_device *pdev)
 
 	return 0;
 err:
-	clk_disable_unprepare(rtc->ck_rtc);
+	if (rtc->data->has_pclk)
+		clk_disable_unprepare(rtc->pclk);
+	clk_disable_unprepare(rtc->rtc_ck);
 
 	regmap_update_bits(rtc->dbp, PWR_CR, PWR_CR_DBP, 0);
 
@@ -667,7 +704,9 @@ static int stm32_rtc_remove(struct platform_device *pdev)
 	writel_relaxed(cr, rtc->base + STM32_RTC_CR);
 	stm32_rtc_wpr_lock(rtc);
 
-	clk_disable_unprepare(rtc->ck_rtc);
+	clk_disable_unprepare(rtc->rtc_ck);
+	if (rtc->data->has_pclk)
+		clk_disable_unprepare(rtc->pclk);
 
 	/* Enable backup domain write protection */
 	regmap_update_bits(rtc->dbp, PWR_CR, PWR_CR_DBP, 0);
@@ -682,6 +721,9 @@ static int stm32_rtc_suspend(struct device *dev)
 {
 	struct stm32_rtc *rtc = dev_get_drvdata(dev);
 
+	if (rtc->data->has_pclk)
+		clk_disable_unprepare(rtc->pclk);
+
 	if (device_may_wakeup(dev))
 		return enable_irq_wake(rtc->irq_alarm);
 
@@ -693,6 +735,12 @@ static int stm32_rtc_resume(struct device *dev)
 	struct stm32_rtc *rtc = dev_get_drvdata(dev);
 	int ret = 0;
 
+	if (rtc->data->has_pclk) {
+		ret = clk_prepare_enable(rtc->pclk);
+		if (ret)
+			return ret;
+	}
+
 	ret = stm32_rtc_wait_sync(rtc);
 	if (ret < 0)
 		return ret;
diff --git a/drivers/rtc/rtc-sysfs.c b/drivers/rtc/rtc-sysfs.c
index 1218d5d4224d..e364550eb9a7 100644
--- a/drivers/rtc/rtc-sysfs.c
+++ b/drivers/rtc/rtc-sysfs.c
@@ -27,7 +27,8 @@
 static ssize_t
 name_show(struct device *dev, struct device_attribute *attr, char *buf)
 {
-	return sprintf(buf, "%s\n", to_rtc_device(dev)->name);
+	return sprintf(buf, "%s %s\n", dev_driver_string(dev->parent),
+		       dev_name(dev->parent));
 }
 static DEVICE_ATTR_RO(name);
 
diff --git a/drivers/s390/char/vmcp.c b/drivers/s390/char/vmcp.c
index 65f5a794f26d..98749fa817da 100644
--- a/drivers/s390/char/vmcp.c
+++ b/drivers/s390/char/vmcp.c
@@ -98,7 +98,7 @@ vmcp_write(struct file *file, const char __user *buff, size_t count,
 	}
 	if (!session->response)
 		session->response = (char *)__get_free_pages(GFP_KERNEL
-						| __GFP_REPEAT | GFP_DMA,
+						| __GFP_RETRY_MAYFAIL | GFP_DMA,
 						get_order(session->bufsize));
 	if (!session->response) {
 		mutex_unlock(&session->mutex);
diff --git a/drivers/s390/cio/chp.c b/drivers/s390/cio/chp.c
index 7e0d4f724dda..432fc40990bd 100644
--- a/drivers/s390/cio/chp.c
+++ b/drivers/s390/cio/chp.c
@@ -559,6 +559,7 @@ static void chp_process_crw(struct crw *crw0, struct crw *crw1,
 	chpid.id = crw0->rsid;
 	switch (crw0->erc) {
 	case CRW_ERC_IPARM: /* Path has come. */
+	case CRW_ERC_INIT:
 		if (!chp_is_registered(chpid))
 			chp_new(chpid);
 		chsc_chp_online(chpid);
diff --git a/drivers/s390/net/ctcm_main.c b/drivers/s390/net/ctcm_main.c
index 1563b1458e44..2ade6131a89f 100644
--- a/drivers/s390/net/ctcm_main.c
+++ b/drivers/s390/net/ctcm_main.c
@@ -1115,7 +1115,7 @@ static const struct net_device_ops ctcm_mpc_netdev_ops = {
 	.ndo_start_xmit		= ctcmpc_tx,
 };
 
-void static ctcm_dev_setup(struct net_device *dev)
+static void ctcm_dev_setup(struct net_device *dev)
 {
 	dev->type = ARPHRD_SLIP;
 	dev->tx_queue_len = 100;
diff --git a/drivers/s390/net/qeth_l3_main.c b/drivers/s390/net/qeth_l3_main.c
index 3062cde33a3d..d42e758518ed 100644
--- a/drivers/s390/net/qeth_l3_main.c
+++ b/drivers/s390/net/qeth_l3_main.c
@@ -2408,7 +2408,7 @@ static int qeth_l3_do_ioctl(struct net_device *dev, struct ifreq *rq, int cmd)
 	return rc;
 }
 
-int inline qeth_l3_get_cast_type(struct qeth_card *card, struct sk_buff *skb)
+inline int qeth_l3_get_cast_type(struct qeth_card *card, struct sk_buff *skb)
 {
 	int cast_type = RTN_UNSPEC;
 	struct neighbour *n = NULL;
@@ -2512,7 +2512,7 @@ static void qeth_l3_fill_header(struct qeth_card *card, struct qeth_hdr *hdr,
 		struct rtable *rt = (struct rtable *) dst;
 		__be32 *pkey = &ip_hdr(skb)->daddr;
 
-		if (rt->rt_gateway)
+		if (rt && rt->rt_gateway)
 			pkey = &rt->rt_gateway;
 
 		/* IPv4 */
@@ -2523,7 +2523,7 @@ static void qeth_l3_fill_header(struct qeth_card *card, struct qeth_hdr *hdr,
 		struct rt6_info *rt = (struct rt6_info *) dst;
 		struct in6_addr *pkey = &ipv6_hdr(skb)->daddr;
 
-		if (!ipv6_addr_any(&rt->rt6i_gateway))
+		if (rt && !ipv6_addr_any(&rt->rt6i_gateway))
 			pkey = &rt->rt6i_gateway;
 
 		/* IPv6 */
diff --git a/drivers/sbus/char/display7seg.c b/drivers/sbus/char/display7seg.c
index 04efed171c88..f32765d3cbd8 100644
--- a/drivers/sbus/char/display7seg.c
+++ b/drivers/sbus/char/display7seg.c
@@ -212,8 +212,8 @@ static int d7s_probe(struct platform_device *op)
 
 	writeb(regs,  p->regs);
 
-	printk(KERN_INFO PFX "7-Segment Display%s at [%s:0x%llx] %s\n",
-	       op->dev.of_node->full_name,
+	printk(KERN_INFO PFX "7-Segment Display%pOF at [%s:0x%llx] %s\n",
+	       op->dev.of_node,
 	       (regs & D7S_FLIP) ? " (FLIPPED)" : "",
 	       op->resource[0].start,
 	       sol_compat ? "in sol_compat mode" : "");
diff --git a/drivers/sbus/char/flash.c b/drivers/sbus/char/flash.c
index 216f923161d1..a610b8d3d11f 100644
--- a/drivers/sbus/char/flash.c
+++ b/drivers/sbus/char/flash.c
@@ -181,8 +181,8 @@ static int flash_probe(struct platform_device *op)
 	}
 	flash.busy = 0;
 
-	printk(KERN_INFO "%s: OBP Flash, RD %lx[%lx] WR %lx[%lx]\n",
-	       op->dev.of_node->full_name,
+	printk(KERN_INFO "%pOF: OBP Flash, RD %lx[%lx] WR %lx[%lx]\n",
+	       op->dev.of_node,
 	       flash.read_base, flash.read_size,
 	       flash.write_base, flash.write_size);
 
diff --git a/drivers/sbus/char/uctrl.c b/drivers/sbus/char/uctrl.c
index 57696fc0b482..0a5013350acd 100644
--- a/drivers/sbus/char/uctrl.c
+++ b/drivers/sbus/char/uctrl.c
@@ -379,8 +379,8 @@ static int uctrl_probe(struct platform_device *op)
 	}
 
 	sbus_writel(UCTRL_INTR_RXNE_REQ|UCTRL_INTR_RXNE_MSK, &p->regs->uctrl_intr);
-	printk(KERN_INFO "%s: uctrl regs[0x%p] (irq %d)\n",
-	       op->dev.of_node->full_name, p->regs, p->irq);
+	printk(KERN_INFO "%pOF: uctrl regs[0x%p] (irq %d)\n",
+	       op->dev.of_node, p->regs, p->irq);
 	uctrl_get_event_status(p);
 	uctrl_get_external_status(p);
 
diff --git a/drivers/scsi/ibmvscsi_tgt/ibmvscsi_tgt.c b/drivers/scsi/ibmvscsi_tgt/ibmvscsi_tgt.c
index 659ab483d716..1f75d0380516 100644
--- a/drivers/scsi/ibmvscsi_tgt/ibmvscsi_tgt.c
+++ b/drivers/scsi/ibmvscsi_tgt/ibmvscsi_tgt.c
@@ -155,6 +155,9 @@ static long ibmvscsis_unregister_command_q(struct scsi_info *vscsi)
 		qrc = h_free_crq(vscsi->dds.unit_id);
 		switch (qrc) {
 		case H_SUCCESS:
+			spin_lock_bh(&vscsi->intr_lock);
+			vscsi->flags &= ~PREP_FOR_SUSPEND_FLAGS;
+			spin_unlock_bh(&vscsi->intr_lock);
 			break;
 
 		case H_HARDWARE:
@@ -422,6 +425,9 @@ static void ibmvscsis_disconnect(struct work_struct *work)
 	new_state = vscsi->new_state;
 	vscsi->new_state = 0;
 
+	vscsi->flags |= DISCONNECT_SCHEDULED;
+	vscsi->flags &= ~SCHEDULE_DISCONNECT;
+
 	pr_debug("disconnect: flags 0x%x, state 0x%hx\n", vscsi->flags,
 		 vscsi->state);
 
@@ -802,6 +808,13 @@ static long ibmvscsis_establish_new_q(struct scsi_info *vscsi)
 	long rc = ADAPT_SUCCESS;
 	uint format;
 
+	rc = h_vioctl(vscsi->dds.unit_id, H_ENABLE_PREPARE_FOR_SUSPEND, 30000,
+		      0, 0, 0, 0);
+	if (rc == H_SUCCESS)
+		vscsi->flags |= PREP_FOR_SUSPEND_ENABLED;
+	else if (rc != H_NOT_FOUND)
+		pr_err("Error from Enable Prepare for Suspend: %ld\n", rc);
+
 	vscsi->flags &= PRESERVE_FLAG_FIELDS;
 	vscsi->rsp_q_timer.timer_pops = 0;
 	vscsi->debit = 0;
@@ -951,6 +964,63 @@ static void ibmvscsis_free_cmd_resources(struct scsi_info *vscsi,
 }
 
 /**
+ * ibmvscsis_ready_for_suspend() - Helper function to call VIOCTL
+ * @vscsi:	Pointer to our adapter structure
+ * @idle:	Indicates whether we were called from adapter_idle.  This
+ *		is important to know if we need to do a disconnect, since if
+ *		we're called from adapter_idle, we're still processing the
+ *		current disconnect, so we can't just call post_disconnect.
+ *
+ * This function is called when the adapter is idle when phyp has sent
+ * us a Prepare for Suspend Transport Event.
+ *
+ * EXECUTION ENVIRONMENT:
+ *	Process or interrupt environment called with interrupt lock held
+ */
+static long ibmvscsis_ready_for_suspend(struct scsi_info *vscsi, bool idle)
+{
+	long rc = 0;
+	struct viosrp_crq *crq;
+
+	/* See if there is a Resume event in the queue */
+	crq = vscsi->cmd_q.base_addr + vscsi->cmd_q.index;
+
+	pr_debug("ready_suspend: flags 0x%x, state 0x%hx crq_valid:%x\n",
+		 vscsi->flags, vscsi->state, (int)crq->valid);
+
+	if (!(vscsi->flags & PREP_FOR_SUSPEND_ABORTED) && !(crq->valid)) {
+		rc = h_vioctl(vscsi->dds.unit_id, H_READY_FOR_SUSPEND, 0, 0, 0,
+			      0, 0);
+		if (rc) {
+			pr_err("Ready for Suspend Vioctl failed: %ld\n", rc);
+			rc = 0;
+		}
+	} else if (((vscsi->flags & PREP_FOR_SUSPEND_OVERWRITE) &&
+		    (vscsi->flags & PREP_FOR_SUSPEND_ABORTED)) ||
+		   ((crq->valid) && ((crq->valid != VALID_TRANS_EVENT) ||
+				     (crq->format != RESUME_FROM_SUSP)))) {
+		if (idle) {
+			vscsi->state = ERR_DISCONNECT_RECONNECT;
+			ibmvscsis_reset_queue(vscsi);
+			rc = -1;
+		} else if (vscsi->state == CONNECTED) {
+			ibmvscsis_post_disconnect(vscsi,
+						  ERR_DISCONNECT_RECONNECT, 0);
+		}
+
+		vscsi->flags &= ~PREP_FOR_SUSPEND_OVERWRITE;
+
+		if ((crq->valid) && ((crq->valid != VALID_TRANS_EVENT) ||
+				     (crq->format != RESUME_FROM_SUSP)))
+			pr_err("Invalid element in CRQ after Prepare for Suspend");
+	}
+
+	vscsi->flags &= ~(PREP_FOR_SUSPEND_PENDING | PREP_FOR_SUSPEND_ABORTED);
+
+	return rc;
+}
+
+/**
  * ibmvscsis_trans_event() - Handle a Transport Event
  * @vscsi:	Pointer to our adapter structure
  * @crq:	Pointer to CRQ entry containing the Transport Event
@@ -974,18 +1044,8 @@ static long ibmvscsis_trans_event(struct scsi_info *vscsi,
 	case PARTNER_FAILED:
 	case PARTNER_DEREGISTER:
 		ibmvscsis_delete_client_info(vscsi, true);
-		break;
-
-	default:
-		rc = ERROR;
-		dev_err(&vscsi->dev, "trans_event: invalid format %d\n",
-			(uint)crq->format);
-		ibmvscsis_post_disconnect(vscsi, ERR_DISCONNECT,
-					  RESPONSE_Q_DOWN);
-		break;
-	}
-
-	if (rc == ADAPT_SUCCESS) {
+		if (crq->format == MIGRATED)
+			vscsi->flags &= ~PREP_FOR_SUSPEND_OVERWRITE;
 		switch (vscsi->state) {
 		case NO_QUEUE:
 		case ERR_DISCONNECTED:
@@ -1034,6 +1094,60 @@ static long ibmvscsis_trans_event(struct scsi_info *vscsi,
 			vscsi->flags |= (RESPONSE_Q_DOWN | TRANS_EVENT);
 			break;
 		}
+		break;
+
+	case PREPARE_FOR_SUSPEND:
+		pr_debug("Prep for Suspend, crq status = 0x%x\n",
+			 (int)crq->status);
+		switch (vscsi->state) {
+		case ERR_DISCONNECTED:
+		case WAIT_CONNECTION:
+		case CONNECTED:
+			ibmvscsis_ready_for_suspend(vscsi, false);
+			break;
+		case SRP_PROCESSING:
+			vscsi->resume_state = vscsi->state;
+			vscsi->flags |= PREP_FOR_SUSPEND_PENDING;
+			if (crq->status == CRQ_ENTRY_OVERWRITTEN)
+				vscsi->flags |= PREP_FOR_SUSPEND_OVERWRITE;
+			ibmvscsis_post_disconnect(vscsi, WAIT_IDLE, 0);
+			break;
+		case NO_QUEUE:
+		case UNDEFINED:
+		case UNCONFIGURING:
+		case WAIT_ENABLED:
+		case ERR_DISCONNECT:
+		case ERR_DISCONNECT_RECONNECT:
+		case WAIT_IDLE:
+			pr_err("Invalid state for Prepare for Suspend Trans Event: 0x%x\n",
+			       vscsi->state);
+			break;
+		}
+		break;
+
+	case RESUME_FROM_SUSP:
+		pr_debug("Resume from Suspend, crq status = 0x%x\n",
+			 (int)crq->status);
+		if (vscsi->flags & PREP_FOR_SUSPEND_PENDING) {
+			vscsi->flags |= PREP_FOR_SUSPEND_ABORTED;
+		} else {
+			if ((crq->status == CRQ_ENTRY_OVERWRITTEN) ||
+			    (vscsi->flags & PREP_FOR_SUSPEND_OVERWRITE)) {
+				ibmvscsis_post_disconnect(vscsi,
+							  ERR_DISCONNECT_RECONNECT,
+							  0);
+				vscsi->flags &= ~PREP_FOR_SUSPEND_OVERWRITE;
+			}
+		}
+		break;
+
+	default:
+		rc = ERROR;
+		dev_err(&vscsi->dev, "trans_event: invalid format %d\n",
+			(uint)crq->format);
+		ibmvscsis_post_disconnect(vscsi, ERR_DISCONNECT,
+					  RESPONSE_Q_DOWN);
+		break;
 	}
 
 	rc = vscsi->flags & SCHEDULE_DISCONNECT;
@@ -1201,6 +1315,7 @@ static struct ibmvscsis_cmd *ibmvscsis_get_free_cmd(struct scsi_info *vscsi)
 static void ibmvscsis_adapter_idle(struct scsi_info *vscsi)
 {
 	int free_qs = false;
+	long rc = 0;
 
 	pr_debug("adapter_idle: flags 0x%x, state 0x%hx\n", vscsi->flags,
 		 vscsi->state);
@@ -1240,7 +1355,14 @@ static void ibmvscsis_adapter_idle(struct scsi_info *vscsi)
 		vscsi->rsp_q_timer.timer_pops = 0;
 		vscsi->debit = 0;
 		vscsi->credit = 0;
-		if (vscsi->flags & TRANS_EVENT) {
+		if (vscsi->flags & PREP_FOR_SUSPEND_PENDING) {
+			vscsi->state = vscsi->resume_state;
+			vscsi->resume_state = 0;
+			rc = ibmvscsis_ready_for_suspend(vscsi, true);
+			vscsi->flags &= ~DISCONNECT_SCHEDULED;
+			if (rc)
+				break;
+		} else if (vscsi->flags & TRANS_EVENT) {
 			vscsi->state = WAIT_CONNECTION;
 			vscsi->flags &= PRESERVE_FLAG_FIELDS;
 		} else {
@@ -3792,8 +3914,16 @@ static struct se_portal_group *ibmvscsis_make_tpg(struct se_wwn *wwn,
 {
 	struct ibmvscsis_tport *tport =
 		container_of(wwn, struct ibmvscsis_tport, tport_wwn);
+	u16 tpgt;
 	int rc;
 
+	if (strstr(name, "tpgt_") != name)
+		return ERR_PTR(-EINVAL);
+	rc = kstrtou16(name + 5, 0, &tpgt);
+	if (rc)
+		return ERR_PTR(rc);
+	tport->tport_tpgt = tpgt;
+
 	tport->releasing = false;
 
 	rc = core_tpg_register(&tport->tport_wwn, &tport->se_tpg,
diff --git a/drivers/scsi/ibmvscsi_tgt/ibmvscsi_tgt.h b/drivers/scsi/ibmvscsi_tgt/ibmvscsi_tgt.h
index b4391a8de456..cc96c2731134 100644
--- a/drivers/scsi/ibmvscsi_tgt/ibmvscsi_tgt.h
+++ b/drivers/scsi/ibmvscsi_tgt/ibmvscsi_tgt.h
@@ -262,6 +262,14 @@ struct scsi_info {
 #define DISCONNECT_SCHEDULED          0x00800
 	/* remove function is sleeping */
 #define CFG_SLEEPING                  0x01000
+	/* Register for Prepare for Suspend Transport Events */
+#define PREP_FOR_SUSPEND_ENABLED      0x02000
+	/* Prepare for Suspend event sent */
+#define PREP_FOR_SUSPEND_PENDING      0x04000
+	/* Resume from Suspend event sent */
+#define PREP_FOR_SUSPEND_ABORTED      0x08000
+	/* Prepare for Suspend event overwrote another CRQ entry */
+#define PREP_FOR_SUSPEND_OVERWRITE    0x10000
 	u32 flags;
 	/* adapter lock */
 	spinlock_t intr_lock;
@@ -272,6 +280,7 @@ struct scsi_info {
 	/* used in crq, to tag what iu the response is for */
 	u64  empty_iu_tag;
 	uint new_state;
+	uint resume_state;
 	/* control block for the response queue timer */
 	struct timer_cb rsp_q_timer;
 	/* keep last client to enable proper accounting */
@@ -324,8 +333,13 @@ struct scsi_info {
 #define TARGET_STOP(VSCSI) (long)(((VSCSI)->state & DONT_PROCESS_STATE) | \
 				  ((VSCSI)->flags & BLOCK))
 
+#define PREP_FOR_SUSPEND_FLAGS  (PREP_FOR_SUSPEND_ENABLED | \
+				 PREP_FOR_SUSPEND_PENDING | \
+				 PREP_FOR_SUSPEND_ABORTED | \
+				 PREP_FOR_SUSPEND_OVERWRITE)
+
 /* flag bit that are not reset during disconnect */
-#define PRESERVE_FLAG_FIELDS 0
+#define PRESERVE_FLAG_FIELDS (PREP_FOR_SUSPEND_FLAGS)
 
 #define vio_iu(IUE) ((union viosrp_iu *)((IUE)->sbuf->buf))
 
@@ -333,8 +347,15 @@ struct scsi_info {
 #define WRITE_CMD(cdb)	(((cdb)[0] & 0x1F) == 0xA)
 
 #ifndef H_GET_PARTNER_INFO
-#define H_GET_PARTNER_INFO      0x0000000000000008LL
+#define H_GET_PARTNER_INFO              0x0000000000000008LL
+#endif
+#ifndef H_ENABLE_PREPARE_FOR_SUSPEND
+#define H_ENABLE_PREPARE_FOR_SUSPEND    0x000000000000001DLL
 #endif
+#ifndef H_READY_FOR_SUSPEND
+#define H_READY_FOR_SUSPEND             0x000000000000001ELL
+#endif
+
 
 #define h_copy_rdma(l, sa, sb, da, db) \
 		plpar_hcall_norets(H_COPY_RDMA, l, sa, sb, da, db)
diff --git a/drivers/scsi/ibmvscsi_tgt/libsrp.h b/drivers/scsi/ibmvscsi_tgt/libsrp.h
index 4696f331453e..9fec55b36322 100644
--- a/drivers/scsi/ibmvscsi_tgt/libsrp.h
+++ b/drivers/scsi/ibmvscsi_tgt/libsrp.h
@@ -30,10 +30,13 @@ enum srp_trans_event {
 	UNUSED_FORMAT = 0,
 	PARTNER_FAILED = 1,
 	PARTNER_DEREGISTER = 2,
-	MIGRATED = 6
+	MIGRATED = 6,
+	PREPARE_FOR_SUSPEND = 9,
+	RESUME_FROM_SUSP = 0xA
 };
 
 enum srp_status {
+	CRQ_ENTRY_OVERWRITTEN = 0x20,
 	HEADER_DESCRIPTOR = 0xF1,
 	PING = 0xF5,
 	PING_RESPONSE = 0xF6
diff --git a/drivers/scsi/lpfc/lpfc_attr.c b/drivers/scsi/lpfc/lpfc_attr.c
index 4ed48ed38e79..7ee1a94c0b33 100644
--- a/drivers/scsi/lpfc/lpfc_attr.c
+++ b/drivers/scsi/lpfc/lpfc_attr.c
@@ -205,8 +205,10 @@ lpfc_nvme_info_show(struct device *dev, struct device_attribute *attr,
 				atomic_read(&tgtp->xmt_ls_rsp_error));
 
 		len += snprintf(buf+len, PAGE_SIZE-len,
-				"FCP: Rcv %08x Release %08x Drop %08x\n",
+				"FCP: Rcv %08x Defer %08x Release %08x "
+				"Drop %08x\n",
 				atomic_read(&tgtp->rcv_fcp_cmd_in),
+				atomic_read(&tgtp->rcv_fcp_cmd_defer),
 				atomic_read(&tgtp->xmt_fcp_release),
 				atomic_read(&tgtp->rcv_fcp_cmd_drop));
 
diff --git a/drivers/scsi/lpfc/lpfc_debugfs.c b/drivers/scsi/lpfc/lpfc_debugfs.c
index 5cc8b0f7d885..744f3f395b64 100644
--- a/drivers/scsi/lpfc/lpfc_debugfs.c
+++ b/drivers/scsi/lpfc/lpfc_debugfs.c
@@ -782,8 +782,11 @@ lpfc_debugfs_nvmestat_data(struct lpfc_vport *vport, char *buf, int size)
 				atomic_read(&tgtp->xmt_ls_rsp_error));
 
 		len += snprintf(buf + len, size - len,
-				"FCP: Rcv %08x Drop %08x\n",
+				"FCP: Rcv %08x Defer %08x Release %08x "
+				"Drop %08x\n",
 				atomic_read(&tgtp->rcv_fcp_cmd_in),
+				atomic_read(&tgtp->rcv_fcp_cmd_defer),
+				atomic_read(&tgtp->xmt_fcp_release),
 				atomic_read(&tgtp->rcv_fcp_cmd_drop));
 
 		if (atomic_read(&tgtp->rcv_fcp_cmd_in) !=
diff --git a/drivers/scsi/lpfc/lpfc_nvmet.c b/drivers/scsi/lpfc/lpfc_nvmet.c
index fbeec344c6cc..bbbd0f84160d 100644
--- a/drivers/scsi/lpfc/lpfc_nvmet.c
+++ b/drivers/scsi/lpfc/lpfc_nvmet.c
@@ -841,12 +841,31 @@ lpfc_nvmet_xmt_fcp_release(struct nvmet_fc_target_port *tgtport,
 	lpfc_nvmet_ctxbuf_post(phba, ctxp->ctxbuf);
 }
 
+static void
+lpfc_nvmet_defer_rcv(struct nvmet_fc_target_port *tgtport,
+		     struct nvmefc_tgt_fcp_req *rsp)
+{
+	struct lpfc_nvmet_tgtport *tgtp;
+	struct lpfc_nvmet_rcv_ctx *ctxp =
+		container_of(rsp, struct lpfc_nvmet_rcv_ctx, ctx.fcp_req);
+	struct rqb_dmabuf *nvmebuf = ctxp->rqb_buffer;
+	struct lpfc_hba *phba = ctxp->phba;
+
+	lpfc_nvmeio_data(phba, "NVMET DEFERRCV: xri x%x sz %d CPU %02x\n",
+			 ctxp->oxid, ctxp->size, smp_processor_id());
+
+	tgtp = phba->targetport->private;
+	atomic_inc(&tgtp->rcv_fcp_cmd_defer);
+	lpfc_rq_buf_free(phba, &nvmebuf->hbuf); /* repost */
+}
+
 static struct nvmet_fc_target_template lpfc_tgttemplate = {
 	.targetport_delete = lpfc_nvmet_targetport_delete,
 	.xmt_ls_rsp     = lpfc_nvmet_xmt_ls_rsp,
 	.fcp_op         = lpfc_nvmet_xmt_fcp_op,
 	.fcp_abort      = lpfc_nvmet_xmt_fcp_abort,
 	.fcp_req_release = lpfc_nvmet_xmt_fcp_release,
+	.defer_rcv	= lpfc_nvmet_defer_rcv,
 
 	.max_hw_queues  = 1,
 	.max_sgl_segments = LPFC_NVMET_DEFAULT_SEGS,
@@ -1504,6 +1523,17 @@ lpfc_nvmet_unsol_fcp_buffer(struct lpfc_hba *phba,
 		return;
 	}
 
+	/* Processing of FCP command is deferred */
+	if (rc == -EOVERFLOW) {
+		lpfc_nvmeio_data(phba,
+				 "NVMET RCV BUSY: xri x%x sz %d from %06x\n",
+				 oxid, size, sid);
+		/* defer reposting rcv buffer till .defer_rcv callback */
+		ctxp->rqb_buffer = nvmebuf;
+		atomic_inc(&tgtp->rcv_fcp_cmd_out);
+		return;
+	}
+
 	atomic_inc(&tgtp->rcv_fcp_cmd_drop);
 	lpfc_printf_log(phba, KERN_ERR, LOG_NVME_IOERR,
 			"6159 FCP Drop IO x%x: err x%x: x%x x%x x%x\n",
diff --git a/drivers/scsi/lpfc/lpfc_nvmet.h b/drivers/scsi/lpfc/lpfc_nvmet.h
index e675ef17be08..48a76788b003 100644
--- a/drivers/scsi/lpfc/lpfc_nvmet.h
+++ b/drivers/scsi/lpfc/lpfc_nvmet.h
@@ -49,6 +49,7 @@ struct lpfc_nvmet_tgtport {
 	atomic_t rcv_fcp_cmd_in;
 	atomic_t rcv_fcp_cmd_out;
 	atomic_t rcv_fcp_cmd_drop;
+	atomic_t rcv_fcp_cmd_defer;
 	atomic_t xmt_fcp_release;
 
 	/* Stats counters - lpfc_nvmet_xmt_fcp_op */
diff --git a/drivers/scsi/qla2xxx/qla_target.c b/drivers/scsi/qla2xxx/qla_target.c
index 986a4270b2ff..e101cd3043b9 100644
--- a/drivers/scsi/qla2xxx/qla_target.c
+++ b/drivers/scsi/qla2xxx/qla_target.c
@@ -1874,36 +1874,13 @@ static int __qlt_24xx_handle_abts(struct scsi_qla_host *vha,
 	struct abts_recv_from_24xx *abts, struct fc_port *sess)
 {
 	struct qla_hw_data *ha = vha->hw;
-	struct se_session *se_sess = sess->se_sess;
 	struct qla_tgt_mgmt_cmd *mcmd;
-	struct qla_tgt_cmd *cmd;
-	struct se_cmd *se_cmd;
 	int rc;
-	bool found_lun = false;
-	unsigned long flags;
-
-	spin_lock_irqsave(&se_sess->sess_cmd_lock, flags);
-	list_for_each_entry(se_cmd, &se_sess->sess_cmd_list, se_cmd_list) {
-		if (se_cmd->tag == abts->exchange_addr_to_abort) {
-			found_lun = true;
-			break;
-		}
-	}
-	spin_unlock_irqrestore(&se_sess->sess_cmd_lock, flags);
 
-	/* cmd not in LIO lists, look in qla list */
-	if (!found_lun) {
-		if (abort_cmd_for_tag(vha, abts->exchange_addr_to_abort)) {
-			/* send TASK_ABORT response immediately */
-			qlt_24xx_send_abts_resp(ha->base_qpair, abts,
-			    FCP_TMF_CMPL, false);
-			return 0;
-		} else {
-			ql_dbg(ql_dbg_tgt_mgt, vha, 0xf081,
-			    "unable to find cmd in driver or LIO for tag 0x%x\n",
-			    abts->exchange_addr_to_abort);
-			return -ENOENT;
-		}
+	if (abort_cmd_for_tag(vha, abts->exchange_addr_to_abort)) {
+		/* send TASK_ABORT response immediately */
+		qlt_24xx_send_abts_resp(ha->base_qpair, abts, FCP_TMF_CMPL, false);
+		return 0;
 	}
 
 	ql_dbg(ql_dbg_tgt_mgt, vha, 0xf00f,
@@ -1919,14 +1896,17 @@ static int __qlt_24xx_handle_abts(struct scsi_qla_host *vha,
 	}
 	memset(mcmd, 0, sizeof(*mcmd));
 
-	cmd = container_of(se_cmd, struct qla_tgt_cmd, se_cmd);
 	mcmd->sess = sess;
 	memcpy(&mcmd->orig_iocb.abts, abts, sizeof(mcmd->orig_iocb.abts));
 	mcmd->reset_count = ha->base_qpair->chip_reset;
 	mcmd->tmr_func = QLA_TGT_ABTS;
 	mcmd->qpair = ha->base_qpair;
 
-	rc = ha->tgt.tgt_ops->handle_tmr(mcmd, cmd->unpacked_lun, mcmd->tmr_func,
+	/*
+	 * LUN is looked up by target-core internally based on the passed
+	 * abts->exchange_addr_to_abort tag.
+	 */
+	rc = ha->tgt.tgt_ops->handle_tmr(mcmd, 0, mcmd->tmr_func,
 	    abts->exchange_addr_to_abort);
 	if (rc != 0) {
 		ql_dbg(ql_dbg_tgt_mgt, vha, 0xf052,
diff --git a/drivers/scsi/qla2xxx/tcm_qla2xxx.c b/drivers/scsi/qla2xxx/tcm_qla2xxx.c
index c4b414833b86..3f82ea1b72dc 100644
--- a/drivers/scsi/qla2xxx/tcm_qla2xxx.c
+++ b/drivers/scsi/qla2xxx/tcm_qla2xxx.c
@@ -500,7 +500,6 @@ static int tcm_qla2xxx_handle_cmd(scsi_qla_host_t *vha, struct qla_tgt_cmd *cmd,
 static void tcm_qla2xxx_handle_data_work(struct work_struct *work)
 {
 	struct qla_tgt_cmd *cmd = container_of(work, struct qla_tgt_cmd, work);
-	unsigned long flags;
 
 	/*
 	 * Ensure that the complete FCP WRITE payload has been received.
@@ -508,17 +507,6 @@ static void tcm_qla2xxx_handle_data_work(struct work_struct *work)
 	 */
 	cmd->cmd_in_wq = 0;
 
-	spin_lock_irqsave(&cmd->cmd_lock, flags);
-	cmd->data_work = 1;
-	if (cmd->aborted) {
-		cmd->data_work_free = 1;
-		spin_unlock_irqrestore(&cmd->cmd_lock, flags);
-
-		tcm_qla2xxx_free_cmd(cmd);
-		return;
-	}
-	spin_unlock_irqrestore(&cmd->cmd_lock, flags);
-
 	cmd->qpair->tgt_counters.qla_core_ret_ctio++;
 	if (!cmd->write_data_transferred) {
 		/*
@@ -600,11 +588,13 @@ static int tcm_qla2xxx_handle_tmr(struct qla_tgt_mgmt_cmd *mcmd, u64 lun,
 	struct fc_port *sess = mcmd->sess;
 	struct se_cmd *se_cmd = &mcmd->se_cmd;
 	int transl_tmr_func = 0;
+	int flags = TARGET_SCF_ACK_KREF;
 
 	switch (tmr_func) {
 	case QLA_TGT_ABTS:
 		pr_debug("%ld: ABTS received\n", sess->vha->host_no);
 		transl_tmr_func = TMR_ABORT_TASK;
+		flags |= TARGET_SCF_LOOKUP_LUN_FROM_TAG;
 		break;
 	case QLA_TGT_2G_ABORT_TASK:
 		pr_debug("%ld: 2G Abort Task received\n", sess->vha->host_no);
@@ -637,7 +627,7 @@ static int tcm_qla2xxx_handle_tmr(struct qla_tgt_mgmt_cmd *mcmd, u64 lun,
 	}
 
 	return target_submit_tmr(se_cmd, sess->se_sess, NULL, lun, mcmd,
-	    transl_tmr_func, GFP_ATOMIC, tag, TARGET_SCF_ACK_KREF);
+	    transl_tmr_func, GFP_ATOMIC, tag, flags);
 }
 
 static int tcm_qla2xxx_queue_data_in(struct se_cmd *se_cmd)
@@ -763,31 +753,13 @@ static void tcm_qla2xxx_queue_tm_rsp(struct se_cmd *se_cmd)
 	qlt_xmit_tm_rsp(mcmd);
 }
 
-#define DATA_WORK_NOT_FREE(_cmd) (_cmd->data_work && !_cmd->data_work_free)
 static void tcm_qla2xxx_aborted_task(struct se_cmd *se_cmd)
 {
 	struct qla_tgt_cmd *cmd = container_of(se_cmd,
 				struct qla_tgt_cmd, se_cmd);
-	unsigned long flags;
 
 	if (qlt_abort_cmd(cmd))
 		return;
-
-	spin_lock_irqsave(&cmd->cmd_lock, flags);
-	if ((cmd->state == QLA_TGT_STATE_NEW)||
-	    ((cmd->state == QLA_TGT_STATE_DATA_IN) &&
-		DATA_WORK_NOT_FREE(cmd))) {
-		cmd->data_work_free = 1;
-		spin_unlock_irqrestore(&cmd->cmd_lock, flags);
-		/*
-		 * cmd has not reached fw, Use this trigger to free it.
-		 */
-		tcm_qla2xxx_free_cmd(cmd);
-		return;
-	}
-	spin_unlock_irqrestore(&cmd->cmd_lock, flags);
-	return;
-
 }
 
 static void tcm_qla2xxx_clear_sess_lookup(struct tcm_qla2xxx_lport *,
diff --git a/drivers/soc/imx/gpcv2.c b/drivers/soc/imx/gpcv2.c
index 3039072911a5..afc7ecc3c187 100644
--- a/drivers/soc/imx/gpcv2.c
+++ b/drivers/soc/imx/gpcv2.c
@@ -200,16 +200,11 @@ static int imx7_pgc_domain_probe(struct platform_device *pdev)
 
 	domain->dev = &pdev->dev;
 
-	ret = pm_genpd_init(&domain->genpd, NULL, true);
-	if (ret) {
-		dev_err(domain->dev, "Failed to init power domain\n");
-		return ret;
-	}
-
 	domain->regulator = devm_regulator_get_optional(domain->dev, "power");
 	if (IS_ERR(domain->regulator)) {
 		if (PTR_ERR(domain->regulator) != -ENODEV) {
-			dev_err(domain->dev, "Failed to get domain's regulator\n");
+			if (PTR_ERR(domain->regulator) != -EPROBE_DEFER)
+				dev_err(domain->dev, "Failed to get domain's regulator\n");
 			return PTR_ERR(domain->regulator);
 		}
 	} else {
@@ -217,6 +212,12 @@ static int imx7_pgc_domain_probe(struct platform_device *pdev)
 				      domain->voltage, domain->voltage);
 	}
 
+	ret = pm_genpd_init(&domain->genpd, NULL, true);
+	if (ret) {
+		dev_err(domain->dev, "Failed to init power domain\n");
+		return ret;
+	}
+
 	ret = of_genpd_add_provider_simple(domain->dev->of_node,
 					   &domain->genpd);
 	if (ret) {
diff --git a/drivers/soc/ti/ti_sci_pm_domains.c b/drivers/soc/ti/ti_sci_pm_domains.c
index b0b283810e72..de31b9389e2e 100644
--- a/drivers/soc/ti/ti_sci_pm_domains.c
+++ b/drivers/soc/ti/ti_sci_pm_domains.c
@@ -176,6 +176,8 @@ static int ti_sci_pm_domain_probe(struct platform_device *pdev)
 
 	ti_sci_pd->dev = dev;
 
+	ti_sci_pd->pd.name = "ti_sci_pd";
+
 	ti_sci_pd->pd.attach_dev = ti_sci_pd_attach_dev;
 	ti_sci_pd->pd.detach_dev = ti_sci_pd_detach_dev;
 
diff --git a/drivers/soc/zte/Kconfig b/drivers/soc/zte/Kconfig
index 20bde38ce2f9..e9d750c510cd 100644
--- a/drivers/soc/zte/Kconfig
+++ b/drivers/soc/zte/Kconfig
@@ -2,6 +2,7 @@
 # ZTE SoC drivers
 #
 menuconfig SOC_ZTE
+	depends on ARCH_ZX || COMPILE_TEST
 	bool "ZTE SoC driver support"
 
 if SOC_ZTE
diff --git a/drivers/spmi/spmi-pmic-arb.c b/drivers/spmi/spmi-pmic-arb.c
index 2afe3597982e..f4b7a98a7913 100644
--- a/drivers/spmi/spmi-pmic-arb.c
+++ b/drivers/spmi/spmi-pmic-arb.c
@@ -134,7 +134,6 @@ struct apid_data {
  * @spmic:		SPMI controller object
  * @ver_ops:		version dependent operations.
  * @ppid_to_apid	in-memory copy of PPID -> channel (APID) mapping table.
- *			v2 only.
  */
 struct spmi_pmic_arb {
 	void __iomem		*rd_base;
@@ -1016,6 +1015,13 @@ static int spmi_pmic_arb_probe(struct platform_device *pdev)
 		goto err_put_ctrl;
 	}
 
+	pa->ppid_to_apid = devm_kcalloc(&ctrl->dev, PMIC_ARB_MAX_PPID,
+					sizeof(*pa->ppid_to_apid), GFP_KERNEL);
+	if (!pa->ppid_to_apid) {
+		err = -ENOMEM;
+		goto err_put_ctrl;
+	}
+
 	hw_ver = readl_relaxed(core + PMIC_ARB_VERSION);
 
 	if (hw_ver < PMIC_ARB_VERSION_V2_MIN) {
@@ -1048,15 +1054,6 @@ static int spmi_pmic_arb_probe(struct platform_device *pdev)
 			err = PTR_ERR(pa->wr_base);
 			goto err_put_ctrl;
 		}
-
-		pa->ppid_to_apid = devm_kcalloc(&ctrl->dev,
-						PMIC_ARB_MAX_PPID,
-						sizeof(*pa->ppid_to_apid),
-						GFP_KERNEL);
-		if (!pa->ppid_to_apid) {
-			err = -ENOMEM;
-			goto err_put_ctrl;
-		}
 	}
 
 	dev_info(&ctrl->dev, "PMIC arbiter version %s (0x%x)\n",
diff --git a/drivers/spmi/spmi.c b/drivers/spmi/spmi.c
index 2b9b0941d9eb..6d23226e5f69 100644
--- a/drivers/spmi/spmi.c
+++ b/drivers/spmi/spmi.c
@@ -365,11 +365,23 @@ static int spmi_drv_remove(struct device *dev)
 	return 0;
 }
 
+static int spmi_drv_uevent(struct device *dev, struct kobj_uevent_env *env)
+{
+	int ret;
+
+	ret = of_device_uevent_modalias(dev, env);
+	if (ret != -ENODEV)
+		return ret;
+
+	return 0;
+}
+
 static struct bus_type spmi_bus_type = {
 	.name		= "spmi",
 	.match		= spmi_device_match,
 	.probe		= spmi_drv_probe,
 	.remove		= spmi_drv_remove,
+	.uevent		= spmi_drv_uevent,
 };
 
 /**
diff --git a/drivers/staging/Kconfig b/drivers/staging/Kconfig
index 268d4e6ef48a..ef28a1cb64ae 100644
--- a/drivers/staging/Kconfig
+++ b/drivers/staging/Kconfig
@@ -110,4 +110,6 @@ source "drivers/staging/ccree/Kconfig"
 
 source "drivers/staging/typec/Kconfig"
 
+source "drivers/staging/vboxvideo/Kconfig"
+
 endif # STAGING
diff --git a/drivers/staging/Makefile b/drivers/staging/Makefile
index b93e6f5f0f6e..2918580bdb9e 100644
--- a/drivers/staging/Makefile
+++ b/drivers/staging/Makefile
@@ -44,3 +44,4 @@ obj-$(CONFIG_KS7010)		+= ks7010/
 obj-$(CONFIG_GREYBUS)		+= greybus/
 obj-$(CONFIG_BCM2835_VCHIQ)	+= vc04_services/
 obj-$(CONFIG_CRYPTO_DEV_CCREE)	+= ccree/
+obj-$(CONFIG_DRM_VBOXVIDEO)	+= vboxvideo/
diff --git a/drivers/staging/comedi/comedi_fops.c b/drivers/staging/comedi/comedi_fops.c
index ca11be21f64b..34ca7823255d 100644
--- a/drivers/staging/comedi/comedi_fops.c
+++ b/drivers/staging/comedi/comedi_fops.c
@@ -2396,6 +2396,7 @@ static ssize_t comedi_write(struct file *file, const char __user *buf,
 			continue;
 		}
 
+		set_current_state(TASK_RUNNING);
 		wp = async->buf_write_ptr;
 		n1 = min(n, async->prealloc_bufsz - wp);
 		n2 = n - n1;
@@ -2528,6 +2529,8 @@ static ssize_t comedi_read(struct file *file, char __user *buf, size_t nbytes,
 			}
 			continue;
 		}
+
+		set_current_state(TASK_RUNNING);
 		rp = async->buf_read_ptr;
 		n1 = min(n, async->prealloc_bufsz - rp);
 		n2 = n - n1;
diff --git a/drivers/staging/comedi/drivers/ni_mio_common.c b/drivers/staging/comedi/drivers/ni_mio_common.c
index b2e382888981..2f7bfc1c59e5 100644
--- a/drivers/staging/comedi/drivers/ni_mio_common.c
+++ b/drivers/staging/comedi/drivers/ni_mio_common.c
@@ -3116,8 +3116,7 @@ static void ni_ao_cmd_set_update(struct comedi_device *dev,
 		/* following line: 2-1 per STC */
 		ni_stc_writel(dev, 1, NISTC_AO_UI_LOADA_REG);
 		ni_stc_writew(dev, NISTC_AO_CMD1_UI_LOAD, NISTC_AO_CMD1_REG);
-		/* following line: N-1 per STC */
-		ni_stc_writel(dev, trigvar - 1, NISTC_AO_UI_LOADA_REG);
+		ni_stc_writel(dev, trigvar, NISTC_AO_UI_LOADA_REG);
 	} else { /* TRIG_EXT */
 		/* FIXME:  assert scan_begin_arg != 0, ret failure otherwise */
 		devpriv->ao_cmd2  |= NISTC_AO_CMD2_BC_GATE_ENA;
diff --git a/drivers/staging/iio/resolver/ad2s1210.c b/drivers/staging/iio/resolver/ad2s1210.c
index a6a8393d6664..3e00df74b18c 100644
--- a/drivers/staging/iio/resolver/ad2s1210.c
+++ b/drivers/staging/iio/resolver/ad2s1210.c
@@ -472,7 +472,7 @@ static int ad2s1210_read_raw(struct iio_dev *indio_dev,
 			     long m)
 {
 	struct ad2s1210_state *st = iio_priv(indio_dev);
-	bool negative;
+	u16 negative;
 	int ret = 0;
 	u16 pos;
 	s16 vel;
diff --git a/drivers/staging/lustre/lnet/klnds/o2iblnd/o2iblnd_cb.c b/drivers/staging/lustre/lnet/klnds/o2iblnd/o2iblnd_cb.c
index 85b242ec5f9b..8fc191d99927 100644
--- a/drivers/staging/lustre/lnet/klnds/o2iblnd/o2iblnd_cb.c
+++ b/drivers/staging/lustre/lnet/klnds/o2iblnd/o2iblnd_cb.c
@@ -1640,8 +1640,13 @@ kiblnd_send(struct lnet_ni *ni, void *private, struct lnet_msg *lntmsg)
 	ibmsg = tx->tx_msg;
 	ibmsg->ibm_u.immediate.ibim_hdr = *hdr;
 
-	copy_from_iter(&ibmsg->ibm_u.immediate.ibim_payload, IBLND_MSG_SIZE,
-		       &from);
+	rc = copy_from_iter(&ibmsg->ibm_u.immediate.ibim_payload, payload_nob,
+			    &from);
+	if (rc != payload_nob) {
+		kiblnd_pool_free_node(&tx->tx_pool->tpo_pool, &tx->tx_list);
+		return -EFAULT;
+	}
+
 	nob = offsetof(struct kib_immediate_msg, ibim_payload[payload_nob]);
 	kiblnd_init_tx_msg(ni, tx, IBLND_MSG_IMMEDIATE, nob);
 
@@ -1741,8 +1746,14 @@ kiblnd_recv(struct lnet_ni *ni, void *private, struct lnet_msg *lntmsg,
 			break;
 		}
 
-		copy_to_iter(&rxmsg->ibm_u.immediate.ibim_payload,
-			     IBLND_MSG_SIZE, to);
+		rc = copy_to_iter(&rxmsg->ibm_u.immediate.ibim_payload, rlen,
+				  to);
+		if (rc != rlen) {
+			rc = -EFAULT;
+			break;
+		}
+
+		rc = 0;
 		lnet_finalize(ni, lntmsg, 0);
 		break;
 
diff --git a/drivers/staging/media/atomisp/i2c/ap1302.h b/drivers/staging/media/atomisp/i2c/ap1302.h
index 9341232c580d..4d0b181a9671 100644
--- a/drivers/staging/media/atomisp/i2c/ap1302.h
+++ b/drivers/staging/media/atomisp/i2c/ap1302.h
@@ -158,8 +158,8 @@ struct ap1302_res_struct {
 };
 
 struct ap1302_context_res {
-	s32 res_num;
-	s32 cur_res;
+	u32 res_num;
+	u32 cur_res;
 	struct ap1302_res_struct *res_table;
 };
 
diff --git a/drivers/staging/media/atomisp/i2c/gc0310.h b/drivers/staging/media/atomisp/i2c/gc0310.h
index f31eb277f542..7d8a0aeecb6c 100644
--- a/drivers/staging/media/atomisp/i2c/gc0310.h
+++ b/drivers/staging/media/atomisp/i2c/gc0310.h
@@ -454,6 +454,6 @@ struct gc0310_resolution gc0310_res_video[] = {
 #define N_RES_VIDEO (ARRAY_SIZE(gc0310_res_video))
 
 static struct gc0310_resolution *gc0310_res = gc0310_res_preview;
-static int N_RES = N_RES_PREVIEW;
+static unsigned long N_RES = N_RES_PREVIEW;
 #endif
 
diff --git a/drivers/staging/media/atomisp/i2c/gc2235.h b/drivers/staging/media/atomisp/i2c/gc2235.h
index ccbc757045a5..7c3d994180cc 100644
--- a/drivers/staging/media/atomisp/i2c/gc2235.h
+++ b/drivers/staging/media/atomisp/i2c/gc2235.h
@@ -668,5 +668,5 @@ struct gc2235_resolution gc2235_res_video[] = {
 #define N_RES_VIDEO (ARRAY_SIZE(gc2235_res_video))
 
 static struct gc2235_resolution *gc2235_res = gc2235_res_preview;
-static int N_RES = N_RES_PREVIEW;
+static unsigned long N_RES = N_RES_PREVIEW;
 #endif
diff --git a/drivers/staging/media/atomisp/i2c/imx/imx.h b/drivers/staging/media/atomisp/i2c/imx/imx.h
index 36b3f3a5a41f..41b4133ca995 100644
--- a/drivers/staging/media/atomisp/i2c/imx/imx.h
+++ b/drivers/staging/media/atomisp/i2c/imx/imx.h
@@ -480,7 +480,7 @@ struct imx_device {
 	struct imx_vcm *vcm_driver;
 	struct imx_otp *otp_driver;
 	const struct imx_resolution *curr_res_table;
-	int entries_curr_table;
+	unsigned long entries_curr_table;
 	const struct firmware *fw;
 	struct imx_reg_addr *reg_addr;
 	const struct imx_reg *param_hold;
diff --git a/drivers/staging/media/atomisp/i2c/ov2680.h b/drivers/staging/media/atomisp/i2c/ov2680.h
index 944fe8e3bcbf..ab8907e6c9ef 100644
--- a/drivers/staging/media/atomisp/i2c/ov2680.h
+++ b/drivers/staging/media/atomisp/i2c/ov2680.h
@@ -934,7 +934,6 @@ static struct ov2680_resolution ov2680_res_video[] = {
 #define N_RES_VIDEO (ARRAY_SIZE(ov2680_res_video))
 
 static struct ov2680_resolution *ov2680_res = ov2680_res_preview;
-static int N_RES = N_RES_PREVIEW;
-
+static unsigned long N_RES = N_RES_PREVIEW;
 
 #endif
diff --git a/drivers/staging/media/atomisp/i2c/ov2722.h b/drivers/staging/media/atomisp/i2c/ov2722.h
index b0d40965d89e..73ecb1679718 100644
--- a/drivers/staging/media/atomisp/i2c/ov2722.h
+++ b/drivers/staging/media/atomisp/i2c/ov2722.h
@@ -1263,5 +1263,5 @@ struct ov2722_resolution ov2722_res_video[] = {
 #define N_RES_VIDEO (ARRAY_SIZE(ov2722_res_video))
 
 static struct ov2722_resolution *ov2722_res = ov2722_res_preview;
-static int N_RES = N_RES_PREVIEW;
+static unsigned long N_RES = N_RES_PREVIEW;
 #endif
diff --git a/drivers/staging/media/atomisp/i2c/ov5693/ov5693.h b/drivers/staging/media/atomisp/i2c/ov5693/ov5693.h
index d88ac1777d86..8c2e6794463b 100644
--- a/drivers/staging/media/atomisp/i2c/ov5693/ov5693.h
+++ b/drivers/staging/media/atomisp/i2c/ov5693/ov5693.h
@@ -1377,5 +1377,5 @@ struct ov5693_resolution ov5693_res_video[] = {
 #define N_RES_VIDEO (ARRAY_SIZE(ov5693_res_video))
 
 static struct ov5693_resolution *ov5693_res = ov5693_res_preview;
-static int N_RES = N_RES_PREVIEW;
+static unsigned long N_RES = N_RES_PREVIEW;
 #endif
diff --git a/drivers/staging/media/atomisp/i2c/ov8858.h b/drivers/staging/media/atomisp/i2c/ov8858.h
index 9be6a0e63861..d3fde200c013 100644
--- a/drivers/staging/media/atomisp/i2c/ov8858.h
+++ b/drivers/staging/media/atomisp/i2c/ov8858.h
@@ -266,7 +266,7 @@ struct ov8858_device {
 	const struct ov8858_reg *regs;
 	struct ov8858_vcm *vcm_driver;
 	const struct ov8858_resolution *curr_res_table;
-	int entries_curr_table;
+	unsigned long entries_curr_table;
 
 	struct v4l2_ctrl_handler ctrl_handler;
 	struct v4l2_ctrl *run_mode;
diff --git a/drivers/staging/media/atomisp/i2c/ov8858_btns.h b/drivers/staging/media/atomisp/i2c/ov8858_btns.h
index 09e3cdc1a394..f9a3cf8fbf1a 100644
--- a/drivers/staging/media/atomisp/i2c/ov8858_btns.h
+++ b/drivers/staging/media/atomisp/i2c/ov8858_btns.h
@@ -266,7 +266,7 @@ struct ov8858_device {
 	const struct ov8858_reg *regs;
 	struct ov8858_vcm *vcm_driver;
 	const struct ov8858_resolution *curr_res_table;
-	int entries_curr_table;
+	unsigned long entries_curr_table;
 
 	struct v4l2_ctrl_handler ctrl_handler;
 	struct v4l2_ctrl *run_mode;
diff --git a/drivers/staging/media/atomisp/pci/atomisp2/Makefile b/drivers/staging/media/atomisp/pci/atomisp2/Makefile
index 726eaa293c55..2bd98f0667ec 100644
--- a/drivers/staging/media/atomisp/pci/atomisp2/Makefile
+++ b/drivers/staging/media/atomisp/pci/atomisp2/Makefile
@@ -354,7 +354,9 @@ ccflags-y += $(INCLUDES) $(DEFINES) -fno-common
 
 # HACK! While this driver is in bad shape, don't enable several warnings
 #       that would be otherwise enabled with W=1
-ccflags-y += -Wno-unused-const-variable -Wno-missing-prototypes \
-	     -Wno-unused-but-set-variable -Wno-missing-declarations \
-	     -Wno-suggest-attribute=format -Wno-missing-prototypes \
-	     -Wno-implicit-fallthrough
+ccflags-y += $(call cc-disable-warning, implicit-fallthrough)
+ccflags-y += $(call cc-disable-warning, missing-prototypes)
+ccflags-y += $(call cc-disable-warning, missing-declarations)
+ccflags-y += $(call cc-disable-warning, suggest-attribute=format)
+ccflags-y += $(call cc-disable-warning, unused-const-variable)
+ccflags-y += $(call cc-disable-warning, unused-but-set-variable)
diff --git a/drivers/staging/media/atomisp/pci/atomisp2/atomisp_internal.h b/drivers/staging/media/atomisp/pci/atomisp2/atomisp_internal.h
index d3667132851b..c8e0c4fe3717 100644
--- a/drivers/staging/media/atomisp/pci/atomisp2/atomisp_internal.h
+++ b/drivers/staging/media/atomisp/pci/atomisp2/atomisp_internal.h
@@ -275,7 +275,7 @@ struct atomisp_device {
 	 */
 	struct mutex streamoff_mutex;
 
-	int input_cnt;
+	unsigned int input_cnt;
 	struct atomisp_input_subdev inputs[ATOM_ISP_MAX_INPUTS];
 	struct v4l2_subdev *flash;
 	struct v4l2_subdev *motor;
diff --git a/drivers/staging/media/cxd2099/cxd2099.c b/drivers/staging/media/cxd2099/cxd2099.c
index 370ecb959543..f28916ea69f1 100644
--- a/drivers/staging/media/cxd2099/cxd2099.c
+++ b/drivers/staging/media/cxd2099/cxd2099.c
@@ -1,7 +1,7 @@
 /*
  * cxd2099.c: Driver for the CXD2099AR Common Interface Controller
  *
- * Copyright (C) 2010-2011 Digital Devices GmbH
+ * Copyright (C) 2010-2013 Digital Devices GmbH
  *
  *
  * This program is free software; you can redistribute it and/or
@@ -33,7 +33,10 @@
 
 #include "cxd2099.h"
 
-#define MAX_BUFFER_SIZE 248
+/* comment this line to deactivate the cxd2099ar buffer mode */
+#define BUFFER_MODE 1
+
+static int read_data(struct dvb_ca_en50221 *ca, int slot, u8 *ebuf, int ecount);
 
 struct cxd {
 	struct dvb_ca_en50221 en;
@@ -48,6 +51,7 @@ struct cxd {
 	int    mode;
 	int    ready;
 	int    dr;
+	int    write_busy;
 	int    slot_stat;
 
 	u8     amem[1024];
@@ -55,6 +59,9 @@ struct cxd {
 
 	int    cammode;
 	struct mutex lock;
+
+	u8     rbuf[1028];
+	u8     wbuf[1028];
 };
 
 static int i2c_write_reg(struct i2c_adapter *adapter, u8 adr,
@@ -73,7 +80,7 @@ static int i2c_write_reg(struct i2c_adapter *adapter, u8 adr,
 }
 
 static int i2c_write(struct i2c_adapter *adapter, u8 adr,
-		     u8 *data, u8 len)
+		     u8 *data, u16 len)
 {
 	struct i2c_msg msg = {.addr = adr, .flags = 0, .buf = data, .len = len};
 
@@ -100,12 +107,12 @@ static int i2c_read_reg(struct i2c_adapter *adapter, u8 adr,
 }
 
 static int i2c_read(struct i2c_adapter *adapter, u8 adr,
-		    u8 reg, u8 *data, u8 n)
+		    u8 reg, u8 *data, u16 n)
 {
 	struct i2c_msg msgs[2] = {{.addr = adr, .flags = 0,
-				 .buf = &reg, .len = 1},
-				{.addr = adr, .flags = I2C_M_RD,
-				 .buf = data, .len = n} };
+				   .buf = &reg, .len = 1},
+				  {.addr = adr, .flags = I2C_M_RD,
+				   .buf = data, .len = n} };
 
 	if (i2c_transfer(adapter, msgs, 2) != 2) {
 		dev_err(&adapter->dev, "error in i2c_read\n");
@@ -114,14 +121,26 @@ static int i2c_read(struct i2c_adapter *adapter, u8 adr,
 	return 0;
 }
 
-static int read_block(struct cxd *ci, u8 adr, u8 *data, u8 n)
+static int read_block(struct cxd *ci, u8 adr, u8 *data, u16 n)
 {
-	int status;
+	int status = 0;
 
-	status = i2c_write_reg(ci->i2c, ci->cfg.adr, 0, adr);
+	if (ci->lastaddress != adr)
+		status = i2c_write_reg(ci->i2c, ci->cfg.adr, 0, adr);
 	if (!status) {
 		ci->lastaddress = adr;
-		status = i2c_read(ci->i2c, ci->cfg.adr, 1, data, n);
+
+		while (n) {
+			int len = n;
+
+			if (ci->cfg.max_i2c && (len > ci->cfg.max_i2c))
+				len = ci->cfg.max_i2c;
+			status = i2c_read(ci->i2c, ci->cfg.adr, 1, data, len);
+			if (status)
+				return status;
+			data += len;
+			n -= len;
+		}
 	}
 	return status;
 }
@@ -182,16 +201,16 @@ static int write_io(struct cxd *ci, u16 address, u8 val)
 
 static int write_regm(struct cxd *ci, u8 reg, u8 val, u8 mask)
 {
-	int status;
+	int status = 0;
 
-	status = i2c_write_reg(ci->i2c, ci->cfg.adr, 0, reg);
+	if (ci->lastaddress != reg)
+		status = i2c_write_reg(ci->i2c, ci->cfg.adr, 0, reg);
 	if (!status && reg >= 6 && reg <= 8 && mask != 0xff)
 		status = i2c_read_reg(ci->i2c, ci->cfg.adr, 1, &ci->regs[reg]);
+	ci->lastaddress = reg;
 	ci->regs[reg] = (ci->regs[reg] & (~mask)) | val;
-	if (!status) {
-		ci->lastaddress = reg;
+	if (!status)
 		status = i2c_write_reg(ci->i2c, ci->cfg.adr, 1, ci->regs[reg]);
-	}
 	if (reg == 0x20)
 		ci->regs[reg] &= 0x7f;
 	return status;
@@ -203,16 +222,29 @@ static int write_reg(struct cxd *ci, u8 reg, u8 val)
 }
 
 #ifdef BUFFER_MODE
-static int write_block(struct cxd *ci, u8 adr, u8 *data, int n)
+static int write_block(struct cxd *ci, u8 adr, u8 *data, u16 n)
 {
-	int status;
-	u8 buf[256] = {1};
-
-	status = i2c_write_reg(ci->i2c, ci->cfg.adr, 0, adr);
-	if (!status) {
-		ci->lastaddress = adr;
-		memcpy(buf + 1, data, n);
-		status = i2c_write(ci->i2c, ci->cfg.adr, buf, n + 1);
+	int status = 0;
+	u8 *buf = ci->wbuf;
+
+	if (ci->lastaddress != adr)
+		status = i2c_write_reg(ci->i2c, ci->cfg.adr, 0, adr);
+	if (status)
+		return status;
+
+	ci->lastaddress = adr;
+	buf[0] = 1;
+	while (n) {
+		int len = n;
+
+		if (ci->cfg.max_i2c && (len + 1 > ci->cfg.max_i2c))
+			len = ci->cfg.max_i2c - 1;
+		memcpy(buf + 1, data, len);
+		status = i2c_write(ci->i2c, ci->cfg.adr, buf, len + 1);
+		if (status)
+			return status;
+		n -= len;
+		data += len;
 	}
 	return status;
 }
@@ -238,6 +270,8 @@ static void set_mode(struct cxd *ci, int mode)
 
 static void cam_mode(struct cxd *ci, int mode)
 {
+	u8 dummy;
+
 	if (mode == ci->cammode)
 		return;
 
@@ -246,16 +280,15 @@ static void cam_mode(struct cxd *ci, int mode)
 		write_regm(ci, 0x20, 0x80, 0x80);
 		break;
 	case 0x01:
-#ifdef BUFFER_MODE
 		if (!ci->en.read_data)
 			return;
+		ci->write_busy = 0;
 		dev_info(&ci->i2c->dev, "enable cam buffer mode\n");
-		/* write_reg(ci, 0x0d, 0x00); */
-		/* write_reg(ci, 0x0e, 0x01); */
+		write_reg(ci, 0x0d, 0x00);
+		write_reg(ci, 0x0e, 0x01);
 		write_regm(ci, 0x08, 0x40, 0x40);
-		/* read_reg(ci, 0x12, &dummy); */
+		read_reg(ci, 0x12, &dummy);
 		write_regm(ci, 0x08, 0x80, 0x80);
-#endif
 		break;
 	default:
 		break;
@@ -325,7 +358,10 @@ static int init(struct cxd *ci)
 		if (status < 0)
 			break;
 
-		if (ci->cfg.clock_mode) {
+		if (ci->cfg.clock_mode == 2) {
+			/* bitrate*2^13/ 72000 */
+			u32 reg = ((ci->cfg.bitrate << 13) + 71999) / 72000;
+
 			if (ci->cfg.polarity) {
 				status = write_reg(ci, 0x09, 0x6f);
 				if (status < 0)
@@ -335,6 +371,25 @@ static int init(struct cxd *ci)
 				if (status < 0)
 					break;
 			}
+			status = write_reg(ci, 0x20, 0x08);
+			if (status < 0)
+				break;
+			status = write_reg(ci, 0x21, (reg >> 8) & 0xff);
+			if (status < 0)
+				break;
+			status = write_reg(ci, 0x22, reg & 0xff);
+			if (status < 0)
+				break;
+		} else if (ci->cfg.clock_mode == 1) {
+			if (ci->cfg.polarity) {
+				status = write_reg(ci, 0x09, 0x6f); /* D */
+				if (status < 0)
+					break;
+			} else {
+				status = write_reg(ci, 0x09, 0x6d);
+				if (status < 0)
+					break;
+			}
 			status = write_reg(ci, 0x20, 0x68);
 			if (status < 0)
 				break;
@@ -346,7 +401,7 @@ static int init(struct cxd *ci)
 				break;
 		} else {
 			if (ci->cfg.polarity) {
-				status = write_reg(ci, 0x09, 0x4f);
+				status = write_reg(ci, 0x09, 0x4f); /* C */
 				if (status < 0)
 					break;
 			} else {
@@ -354,7 +409,6 @@ static int init(struct cxd *ci)
 				if (status < 0)
 					break;
 			}
-
 			status = write_reg(ci, 0x20, 0x28);
 			if (status < 0)
 				break;
@@ -401,7 +455,6 @@ static int read_attribute_mem(struct dvb_ca_en50221 *ca,
 	set_mode(ci, 1);
 	read_pccard(ci, address, &val, 1);
 	mutex_unlock(&ci->lock);
-	/* printk(KERN_INFO "%02x:%02x\n", address,val); */
 	return val;
 }
 
@@ -446,6 +499,9 @@ static int slot_reset(struct dvb_ca_en50221 *ca, int slot)
 {
 	struct cxd *ci = ca->data;
 
+	if (ci->cammode)
+		read_data(ca, slot, ci->rbuf, 0);
+
 	mutex_lock(&ci->lock);
 	cam_mode(ci, 0);
 	write_reg(ci, 0x00, 0x21);
@@ -465,7 +521,6 @@ static int slot_reset(struct dvb_ca_en50221 *ca, int slot)
 		}
 	}
 	mutex_unlock(&ci->lock);
-	/* msleep(500); */
 	return 0;
 }
 
@@ -474,11 +529,19 @@ static int slot_shutdown(struct dvb_ca_en50221 *ca, int slot)
 	struct cxd *ci = ca->data;
 
 	dev_info(&ci->i2c->dev, "%s\n", __func__);
+	if (ci->cammode)
+		read_data(ca, slot, ci->rbuf, 0);
 	mutex_lock(&ci->lock);
+	write_reg(ci, 0x00, 0x21);
+	write_reg(ci, 0x06, 0x1F);
+	msleep(300);
+
 	write_regm(ci, 0x09, 0x08, 0x08);
 	write_regm(ci, 0x20, 0x80, 0x80); /* Reset CAM Mode */
 	write_regm(ci, 0x06, 0x07, 0x07); /* Clear IO Mode */
+
 	ci->mode = -1;
+	ci->write_busy = 0;
 	mutex_unlock(&ci->lock);
 	return 0;
 }
@@ -490,9 +553,7 @@ static int slot_ts_enable(struct dvb_ca_en50221 *ca, int slot)
 	mutex_lock(&ci->lock);
 	write_regm(ci, 0x09, 0x00, 0x08);
 	set_mode(ci, 0);
-#ifdef BUFFER_MODE
 	cam_mode(ci, 1);
-#endif
 	mutex_unlock(&ci->lock);
 	return 0;
 }
@@ -506,12 +567,10 @@ static int campoll(struct cxd *ci)
 		return 0;
 	write_reg(ci, 0x05, istat);
 
-	if (istat & 0x40) {
+	if (istat & 0x40)
 		ci->dr = 1;
-		dev_info(&ci->i2c->dev, "DR\n");
-	}
 	if (istat & 0x20)
-		dev_info(&ci->i2c->dev, "WC\n");
+		ci->write_busy = 0;
 
 	if (istat & 2) {
 		u8 slotstat;
@@ -519,7 +578,8 @@ static int campoll(struct cxd *ci)
 		read_reg(ci, 0x01, &slotstat);
 		if (!(2 & slotstat)) {
 			if (!ci->slot_stat) {
-				ci->slot_stat = DVB_CA_EN50221_POLL_CAM_PRESENT;
+				ci->slot_stat |=
+					      DVB_CA_EN50221_POLL_CAM_PRESENT;
 				write_regm(ci, 0x03, 0x08, 0x08);
 			}
 
@@ -531,8 +591,8 @@ static int campoll(struct cxd *ci)
 				ci->ready = 0;
 			}
 		}
-		if (istat & 8 &&
-		    ci->slot_stat == DVB_CA_EN50221_POLL_CAM_PRESENT) {
+		if ((istat & 8) &&
+		    (ci->slot_stat == DVB_CA_EN50221_POLL_CAM_PRESENT)) {
 			ci->ready = 1;
 			ci->slot_stat |= DVB_CA_EN50221_POLL_CAM_READY;
 		}
@@ -553,7 +613,6 @@ static int poll_slot_status(struct dvb_ca_en50221 *ca, int slot, int open)
 	return ci->slot_stat;
 }
 
-#ifdef BUFFER_MODE
 static int read_data(struct dvb_ca_en50221 *ca, int slot, u8 *ebuf, int ecount)
 {
 	struct cxd *ci = ca->data;
@@ -564,30 +623,38 @@ static int read_data(struct dvb_ca_en50221 *ca, int slot, u8 *ebuf, int ecount)
 	campoll(ci);
 	mutex_unlock(&ci->lock);
 
-	dev_info(&ci->i2c->dev, "%s\n", __func__);
 	if (!ci->dr)
 		return 0;
 
 	mutex_lock(&ci->lock);
 	read_reg(ci, 0x0f, &msb);
 	read_reg(ci, 0x10, &lsb);
-	len = (msb << 8) | lsb;
+	len = ((u16)msb << 8) | lsb;
+	if (len > ecount || len < 2) {
+		/* read it anyway or cxd may hang */
+		read_block(ci, 0x12, ci->rbuf, len);
+		mutex_unlock(&ci->lock);
+		return -EIO;
+	}
 	read_block(ci, 0x12, ebuf, len);
 	ci->dr = 0;
 	mutex_unlock(&ci->lock);
-
 	return len;
 }
 
+#ifdef BUFFER_MODE
+
 static int write_data(struct dvb_ca_en50221 *ca, int slot, u8 *ebuf, int ecount)
 {
 	struct cxd *ci = ca->data;
 
+	if (ci->write_busy)
+		return -EAGAIN;
 	mutex_lock(&ci->lock);
-	dev_info(&ci->i2c->dev, "%s %d\n", __func__, ecount);
 	write_reg(ci, 0x0d, ecount >> 8);
 	write_reg(ci, 0x0e, ecount & 0xff);
 	write_block(ci, 0x11, ebuf, ecount);
+	ci->write_busy = 1;
 	mutex_unlock(&ci->lock);
 	return ecount;
 }
diff --git a/drivers/staging/media/cxd2099/cxd2099.h b/drivers/staging/media/cxd2099/cxd2099.h
index 0eb607c5b423..f4b29b1d6eb8 100644
--- a/drivers/staging/media/cxd2099/cxd2099.h
+++ b/drivers/staging/media/cxd2099/cxd2099.h
@@ -30,8 +30,10 @@
 struct cxd2099_cfg {
 	u32 bitrate;
 	u8  adr;
-	u8  polarity:1;
-	u8  clock_mode:1;
+	u8  polarity;
+	u8  clock_mode;
+
+	u32 max_i2c;
 };
 
 #if defined(CONFIG_DVB_CXD2099) || \
diff --git a/drivers/staging/mt29f_spinand/mt29f_spinand.c b/drivers/staging/mt29f_spinand/mt29f_spinand.c
index e389009fca42..a4e3ae8f0c85 100644
--- a/drivers/staging/mt29f_spinand/mt29f_spinand.c
+++ b/drivers/staging/mt29f_spinand/mt29f_spinand.c
@@ -915,6 +915,8 @@ static int spinand_probe(struct spi_device *spi_nand)
 	chip->waitfunc	= spinand_wait;
 	chip->options	|= NAND_CACHEPRG;
 	chip->select_chip = spinand_select_chip;
+	chip->onfi_set_features = nand_onfi_get_set_features_notsupp;
+	chip->onfi_get_features = nand_onfi_get_set_features_notsupp;
 
 	mtd = nand_to_mtd(chip);
 
diff --git a/drivers/staging/rtl8188eu/core/rtw_cmd.c b/drivers/staging/rtl8188eu/core/rtw_cmd.c
index 002d09159896..a69007ef77bf 100644
--- a/drivers/staging/rtl8188eu/core/rtw_cmd.c
+++ b/drivers/staging/rtl8188eu/core/rtw_cmd.c
@@ -132,7 +132,7 @@ void rtw_free_cmd_obj(struct cmd_obj *pcmd)
 		kfree(pcmd->parmbuf);
 	}
 
-	if (!pcmd->rsp) {
+	if (pcmd->rsp) {
 		if (pcmd->rspsz != 0) {
 			/* free rsp in cmd_obj */
 			kfree(pcmd->rsp);
diff --git a/drivers/staging/rtl8188eu/os_dep/usb_intf.c b/drivers/staging/rtl8188eu/os_dep/usb_intf.c
index 963235fd7292..d283341cfe43 100644
--- a/drivers/staging/rtl8188eu/os_dep/usb_intf.c
+++ b/drivers/staging/rtl8188eu/os_dep/usb_intf.c
@@ -43,6 +43,7 @@ static struct usb_device_id rtw_usb_id_tbl[] = {
 	{USB_DEVICE(0x2001, 0x330F)}, /* DLink DWA-125 REV D1 */
 	{USB_DEVICE(0x2001, 0x3310)}, /* Dlink DWA-123 REV D1 */
 	{USB_DEVICE(0x2001, 0x3311)}, /* DLink GO-USB-N150 REV B1 */
+	{USB_DEVICE(0x2357, 0x010c)}, /* TP-Link TL-WN722N v2 */
 	{USB_DEVICE(0x0df6, 0x0076)}, /* Sitecom N150 v2 */
 	{}	/* Terminating entry */
 };
diff --git a/drivers/staging/sm750fb/ddk750_chip.c b/drivers/staging/sm750fb/ddk750_chip.c
index 944dd25924be..4754f7a20684 100644
--- a/drivers/staging/sm750fb/ddk750_chip.c
+++ b/drivers/staging/sm750fb/ddk750_chip.c
@@ -40,7 +40,7 @@ static unsigned int get_mxclk_freq(void)
 
 	pll_reg = peek32(MXCLK_PLL_CTRL);
 	M = (pll_reg & PLL_CTRL_M_MASK) >> PLL_CTRL_M_SHIFT;
-	N = (pll_reg & PLL_CTRL_N_MASK) >> PLL_CTRL_M_SHIFT;
+	N = (pll_reg & PLL_CTRL_N_MASK) >> PLL_CTRL_N_SHIFT;
 	OD = (pll_reg & PLL_CTRL_OD_MASK) >> PLL_CTRL_OD_SHIFT;
 	POD = (pll_reg & PLL_CTRL_POD_MASK) >> PLL_CTRL_POD_SHIFT;
 
diff --git a/drivers/staging/sm750fb/sm750.c b/drivers/staging/sm750fb/sm750.c
index 3aa4128703d5..67207b0554cd 100644
--- a/drivers/staging/sm750fb/sm750.c
+++ b/drivers/staging/sm750fb/sm750.c
@@ -1053,6 +1053,26 @@ release_fb:
 	return err;
 }
 
+static int lynxfb_kick_out_firmware_fb(struct pci_dev *pdev)
+{
+	struct apertures_struct *ap;
+	bool primary = false;
+
+	ap = alloc_apertures(1);
+	if (!ap)
+		return -ENOMEM;
+
+	ap->ranges[0].base = pci_resource_start(pdev, 0);
+	ap->ranges[0].size = pci_resource_len(pdev, 0);
+#ifdef CONFIG_X86
+	primary = pdev->resource[PCI_ROM_RESOURCE].flags &
+					IORESOURCE_ROM_SHADOW;
+#endif
+	remove_conflicting_framebuffers(ap, "sm750_fb1", primary);
+	kfree(ap);
+	return 0;
+}
+
 static int lynxfb_pci_probe(struct pci_dev *pdev,
 			    const struct pci_device_id *ent)
 {
@@ -1061,6 +1081,10 @@ static int lynxfb_pci_probe(struct pci_dev *pdev,
 	int fbidx;
 	int err;
 
+	err = lynxfb_kick_out_firmware_fb(pdev);
+	if (err)
+		return err;
+
 	/* enable device */
 	err = pcim_enable_device(pdev);
 	if (err)
diff --git a/drivers/staging/speakup/main.c b/drivers/staging/speakup/main.c
index 82e5de248947..67956e24779c 100644
--- a/drivers/staging/speakup/main.c
+++ b/drivers/staging/speakup/main.c
@@ -2314,6 +2314,7 @@ static void __exit speakup_exit(void)
 	mutex_lock(&spk_mutex);
 	synth_release();
 	mutex_unlock(&spk_mutex);
+	spk_ttyio_unregister_ldisc();
 
 	speakup_kobj_exit();
 
@@ -2376,6 +2377,7 @@ static int __init speakup_init(void)
 	if (err)
 		goto error_kobjects;
 
+	spk_ttyio_register_ldisc();
 	synth_init(synth_name);
 	speakup_register_devsynth();
 	/*
diff --git a/drivers/staging/speakup/spk_priv.h b/drivers/staging/speakup/spk_priv.h
index 87b6a0a4c54d..046040ac074c 100644
--- a/drivers/staging/speakup/spk_priv.h
+++ b/drivers/staging/speakup/spk_priv.h
@@ -48,6 +48,8 @@ void spk_stop_serial_interrupt(void);
 int spk_wait_for_xmitr(struct spk_synth *in_synth);
 void spk_serial_release(void);
 void spk_ttyio_release(void);
+void spk_ttyio_register_ldisc(void);
+void spk_ttyio_unregister_ldisc(void);
 
 void synth_buffer_skip_nonlatin1(void);
 u16 synth_buffer_getc(void);
diff --git a/drivers/staging/speakup/spk_ttyio.c b/drivers/staging/speakup/spk_ttyio.c
index ed8e96b06ead..fe340b07c482 100644
--- a/drivers/staging/speakup/spk_ttyio.c
+++ b/drivers/staging/speakup/spk_ttyio.c
@@ -154,12 +154,6 @@ static int spk_ttyio_initialise_ldisc(struct spk_synth *synth)
 	struct ktermios tmp_termios;
 	dev_t dev;
 
-	ret = tty_register_ldisc(N_SPEAKUP, &spk_ttyio_ldisc_ops);
-	if (ret) {
-		pr_err("Error registering line discipline.\n");
-		return ret;
-	}
-
 	ret = get_dev_to_use(synth, &dev);
 	if (ret)
 		return ret;
@@ -196,10 +190,24 @@ static int spk_ttyio_initialise_ldisc(struct spk_synth *synth)
 	tty_unlock(tty);
 
 	ret = tty_set_ldisc(tty, N_SPEAKUP);
+	if (ret)
+		pr_err("speakup: Failed to set N_SPEAKUP on tty\n");
 
 	return ret;
 }
 
+void spk_ttyio_register_ldisc(void)
+{
+	if (tty_register_ldisc(N_SPEAKUP, &spk_ttyio_ldisc_ops))
+		pr_warn("speakup: Error registering line discipline. Most synths won't work.\n");
+}
+
+void spk_ttyio_unregister_ldisc(void)
+{
+	if (tty_unregister_ldisc(N_SPEAKUP))
+		pr_warn("speakup: Couldn't unregister ldisc\n");
+}
+
 static int spk_ttyio_out(struct spk_synth *in_synth, const char ch)
 {
 	if (in_synth->alive && speakup_tty && speakup_tty->ops->write) {
@@ -300,7 +308,7 @@ void spk_ttyio_release(void)
 
 	tty_ldisc_flush(speakup_tty);
 	tty_unlock(speakup_tty);
-	tty_ldisc_release(speakup_tty);
+	tty_release_struct(speakup_tty, speakup_tty->index);
 }
 EXPORT_SYMBOL_GPL(spk_ttyio_release);
 
diff --git a/drivers/staging/vboxvideo/Kconfig b/drivers/staging/vboxvideo/Kconfig
new file mode 100644
index 000000000000..a52746f9a670
--- /dev/null
+++ b/drivers/staging/vboxvideo/Kconfig
@@ -0,0 +1,12 @@
+config DRM_VBOXVIDEO
+	tristate "Virtual Box Graphics Card"
+	depends on DRM && X86 && PCI
+	select DRM_KMS_HELPER
+	help
+	  This is a KMS driver for the virtual Graphics Card used in
+	  Virtual Box virtual machines.
+
+	  Although it is possible to builtin this module, it is advised
+	  to build this driver as a module, so that it can be updated
+	  independently of the kernel. Select M to built this driver as a
+	  module and add support for these devices via drm/kms interfaces.
diff --git a/drivers/staging/vboxvideo/Makefile b/drivers/staging/vboxvideo/Makefile
new file mode 100644
index 000000000000..2d0b3bc7ad73
--- /dev/null
+++ b/drivers/staging/vboxvideo/Makefile
@@ -0,0 +1,7 @@
+ccflags-y := -Iinclude/drm
+
+vboxvideo-y :=  hgsmi_base.o modesetting.o vbva_base.o \
+		vbox_drv.o vbox_fb.o vbox_hgsmi.o vbox_irq.o vbox_main.o \
+		vbox_mode.o vbox_prime.o vbox_ttm.o
+
+obj-$(CONFIG_DRM_VBOXVIDEO) += vboxvideo.o
diff --git a/drivers/staging/vboxvideo/TODO b/drivers/staging/vboxvideo/TODO
new file mode 100644
index 000000000000..ce764309b079
--- /dev/null
+++ b/drivers/staging/vboxvideo/TODO
@@ -0,0 +1,9 @@
+TODO:
+-Move the driver over to the atomic API
+-Stop using old load / unload drm_driver hooks
+-Get a full review from the drm-maintainers on dri-devel done on this driver
+-Extend this TODO with the results of that review
+
+Please send any patches to Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
+Hans de Goede <hdegoede@redhat.com> and
+Michael Thayer <michael.thayer@oracle.com>.
diff --git a/drivers/staging/vboxvideo/hgsmi_base.c b/drivers/staging/vboxvideo/hgsmi_base.c
new file mode 100644
index 000000000000..15ff5f42e2cd
--- /dev/null
+++ b/drivers/staging/vboxvideo/hgsmi_base.c
@@ -0,0 +1,246 @@
+/*
+ * Copyright (C) 2006-2017 Oracle Corporation
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+#include "vbox_drv.h"
+#include "vbox_err.h"
+#include "vboxvideo_guest.h"
+#include "vboxvideo_vbe.h"
+#include "hgsmi_channels.h"
+#include "hgsmi_ch_setup.h"
+
+/**
+ * Inform the host of the location of the host flags in VRAM via an HGSMI cmd.
+ * @param    ctx          the context of the guest heap to use.
+ * @param    location     the offset chosen for the flags within guest VRAM.
+ * @returns 0 on success, -errno on failure
+ */
+int hgsmi_report_flags_location(struct gen_pool *ctx, u32 location)
+{
+	struct hgsmi_buffer_location *p;
+
+	p = hgsmi_buffer_alloc(ctx, sizeof(*p), HGSMI_CH_HGSMI,
+			       HGSMI_CC_HOST_FLAGS_LOCATION);
+	if (!p)
+		return -ENOMEM;
+
+	p->buf_location = location;
+	p->buf_len = sizeof(struct hgsmi_host_flags);
+
+	hgsmi_buffer_submit(ctx, p);
+	hgsmi_buffer_free(ctx, p);
+
+	return 0;
+}
+
+/**
+ * Notify the host of HGSMI-related guest capabilities via an HGSMI command.
+ * @param    ctx                 the context of the guest heap to use.
+ * @param    caps                the capabilities to report, see vbva_caps.
+ * @returns 0 on success, -errno on failure
+ */
+int hgsmi_send_caps_info(struct gen_pool *ctx, u32 caps)
+{
+	struct vbva_caps *p;
+
+	p = hgsmi_buffer_alloc(ctx, sizeof(*p), HGSMI_CH_VBVA, VBVA_INFO_CAPS);
+	if (!p)
+		return -ENOMEM;
+
+	p->rc = VERR_NOT_IMPLEMENTED;
+	p->caps = caps;
+
+	hgsmi_buffer_submit(ctx, p);
+
+	WARN_ON_ONCE(RT_FAILURE(p->rc));
+
+	hgsmi_buffer_free(ctx, p);
+
+	return 0;
+}
+
+int hgsmi_test_query_conf(struct gen_pool *ctx)
+{
+	u32 value = 0;
+	int ret;
+
+	ret = hgsmi_query_conf(ctx, U32_MAX, &value);
+	if (ret)
+		return ret;
+
+	return value == U32_MAX ? 0 : -EIO;
+}
+
+/**
+ * Query the host for an HGSMI configuration parameter via an HGSMI command.
+ * @param  ctx        the context containing the heap used
+ * @param  index      the index of the parameter to query,
+ *                    @see vbva_conf32::index
+ * @param  value_ret  where to store the value of the parameter on success
+ * @returns 0 on success, -errno on failure
+ */
+int hgsmi_query_conf(struct gen_pool *ctx, u32 index, u32 *value_ret)
+{
+	struct vbva_conf32 *p;
+
+	p = hgsmi_buffer_alloc(ctx, sizeof(*p), HGSMI_CH_VBVA,
+			       VBVA_QUERY_CONF32);
+	if (!p)
+		return -ENOMEM;
+
+	p->index = index;
+	p->value = U32_MAX;
+
+	hgsmi_buffer_submit(ctx, p);
+
+	*value_ret = p->value;
+
+	hgsmi_buffer_free(ctx, p);
+
+	return 0;
+}
+
+/**
+ * Pass the host a new mouse pointer shape via an HGSMI command.
+ *
+ * @param  ctx      the context containing the heap to be used
+ * @param  flags    cursor flags, @see VMMDevReqMousePointer::flags
+ * @param  hot_x    horizontal position of the hot spot
+ * @param  hot_y    vertical position of the hot spot
+ * @param  width    width in pixels of the cursor
+ * @param  height   height in pixels of the cursor
+ * @param  pixels   pixel data, @see VMMDevReqMousePointer for the format
+ * @param  len      size in bytes of the pixel data
+ * @returns 0 on success, -errno on failure
+ */
+int hgsmi_update_pointer_shape(struct gen_pool *ctx, u32 flags,
+			       u32 hot_x, u32 hot_y, u32 width, u32 height,
+			       u8 *pixels, u32 len)
+{
+	struct vbva_mouse_pointer_shape *p;
+	u32 pixel_len = 0;
+	int rc;
+
+	if (flags & VBOX_MOUSE_POINTER_SHAPE) {
+		/*
+		 * Size of the pointer data:
+		 * sizeof (AND mask) + sizeof (XOR_MASK)
+		 */
+		pixel_len = ((((width + 7) / 8) * height + 3) & ~3) +
+			 width * 4 * height;
+		if (pixel_len > len)
+			return -EINVAL;
+
+		/*
+		 * If shape is supplied, then always create the pointer visible.
+		 * See comments in 'vboxUpdatePointerShape'
+		 */
+		flags |= VBOX_MOUSE_POINTER_VISIBLE;
+	}
+
+	p = hgsmi_buffer_alloc(ctx, sizeof(*p) + pixel_len, HGSMI_CH_VBVA,
+			       VBVA_MOUSE_POINTER_SHAPE);
+	if (!p)
+		return -ENOMEM;
+
+	p->result = VINF_SUCCESS;
+	p->flags = flags;
+	p->hot_X = hot_x;
+	p->hot_y = hot_y;
+	p->width = width;
+	p->height = height;
+	if (pixel_len)
+		memcpy(p->data, pixels, pixel_len);
+
+	hgsmi_buffer_submit(ctx, p);
+
+	switch (p->result) {
+	case VINF_SUCCESS:
+		rc = 0;
+		break;
+	case VERR_NO_MEMORY:
+		rc = -ENOMEM;
+		break;
+	case VERR_NOT_SUPPORTED:
+		rc = -EBUSY;
+		break;
+	default:
+		rc = -EINVAL;
+	}
+
+	hgsmi_buffer_free(ctx, p);
+
+	return rc;
+}
+
+/**
+ * Report the guest cursor position.  The host may wish to use this information
+ * to re-position its own cursor (though this is currently unlikely).  The
+ * current host cursor position is returned.
+ * @param  ctx              The context containing the heap used.
+ * @param  report_position  Are we reporting a position?
+ * @param  x                Guest cursor X position.
+ * @param  y                Guest cursor Y position.
+ * @param  x_host           Host cursor X position is stored here.  Optional.
+ * @param  y_host           Host cursor Y position is stored here.  Optional.
+ * @returns 0 on success, -errno on failure
+ */
+int hgsmi_cursor_position(struct gen_pool *ctx, bool report_position,
+			  u32 x, u32 y, u32 *x_host, u32 *y_host)
+{
+	struct vbva_cursor_position *p;
+
+	p = hgsmi_buffer_alloc(ctx, sizeof(*p), HGSMI_CH_VBVA,
+			       VBVA_CURSOR_POSITION);
+	if (!p)
+		return -ENOMEM;
+
+	p->report_position = report_position;
+	p->x = x;
+	p->y = y;
+
+	hgsmi_buffer_submit(ctx, p);
+
+	*x_host = p->x;
+	*y_host = p->y;
+
+	hgsmi_buffer_free(ctx, p);
+
+	return 0;
+}
+
+/**
+ * @todo Mouse pointer position to be read from VMMDev memory, address of the
+ * memory region can be queried from VMMDev via an IOCTL. This VMMDev memory
+ * region will contain host information which is needed by the guest.
+ *
+ * Reading will not cause a switch to the host.
+ *
+ * Have to take into account:
+ *  * synchronization: host must write to the memory only from EMT,
+ *    large structures must be read under flag, which tells the host
+ *    that the guest is currently reading the memory (OWNER flag?).
+ *  * guest writes: may be allocate a page for the host info and make
+ *    the page readonly for the guest.
+ *  * the information should be available only for additions drivers.
+ *  * VMMDev additions driver will inform the host which version of the info
+ *    it expects, host must support all versions.
+ */
diff --git a/drivers/staging/vboxvideo/hgsmi_ch_setup.h b/drivers/staging/vboxvideo/hgsmi_ch_setup.h
new file mode 100644
index 000000000000..8e6d9e11a69c
--- /dev/null
+++ b/drivers/staging/vboxvideo/hgsmi_ch_setup.h
@@ -0,0 +1,66 @@
+/*
+ * Copyright (C) 2006-2017 Oracle Corporation
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+#ifndef __HGSMI_CH_SETUP_H__
+#define __HGSMI_CH_SETUP_H__
+
+/*
+ * Tell the host the location of hgsmi_host_flags structure, where the host
+ * can write information about pending buffers, etc, and which can be quickly
+ * polled by the guest without a need to port IO.
+ */
+#define HGSMI_CC_HOST_FLAGS_LOCATION 0
+
+struct hgsmi_buffer_location {
+	u32 buf_location;
+	u32 buf_len;
+} __packed;
+
+/* HGSMI setup and configuration data structures. */
+/* host->guest commands pending, should be accessed under FIFO lock only */
+#define HGSMIHOSTFLAGS_COMMANDS_PENDING    0x01u
+/* IRQ is fired, should be accessed under VGAState::lock only  */
+#define HGSMIHOSTFLAGS_IRQ                 0x02u
+/* vsync interrupt flag, should be accessed under VGAState::lock only */
+#define HGSMIHOSTFLAGS_VSYNC               0x10u
+/** monitor hotplug flag, should be accessed under VGAState::lock only */
+#define HGSMIHOSTFLAGS_HOTPLUG             0x20u
+/**
+ * Cursor capability state change flag, should be accessed under
+ * VGAState::lock only. @see vbva_conf32.
+ */
+#define HGSMIHOSTFLAGS_CURSOR_CAPABILITIES 0x40u
+
+struct hgsmi_host_flags {
+	/*
+	 * Host flags can be accessed and modified in multiple threads
+	 * concurrently, e.g. CrOpenGL HGCM and GUI threads when completing
+	 * HGSMI 3D and Video Accel respectively, EMT thread when dealing with
+	 * HGSMI command processing, etc.
+	 * Besides settings/cleaning flags atomically, some flags have their
+	 * own special sync restrictions, see comments for flags above.
+	 */
+	u32 host_flags;
+	u32 reserved[3];
+} __packed;
+
+#endif
diff --git a/drivers/staging/vboxvideo/hgsmi_channels.h b/drivers/staging/vboxvideo/hgsmi_channels.h
new file mode 100644
index 000000000000..a2a34b2167b4
--- /dev/null
+++ b/drivers/staging/vboxvideo/hgsmi_channels.h
@@ -0,0 +1,53 @@
+/*
+ * Copyright (C) 2006-2017 Oracle Corporation
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+#ifndef __HGSMI_CHANNELS_H__
+#define __HGSMI_CHANNELS_H__
+
+/*
+ * Each channel has an 8 bit identifier. There are a number of predefined
+ * (hardcoded) channels.
+ *
+ * HGSMI_CH_HGSMI channel can be used to map a string channel identifier
+ * to a free 16 bit numerical value. values are allocated in range
+ * [HGSMI_CH_STRING_FIRST;HGSMI_CH_STRING_LAST].
+ */
+
+/* A reserved channel value */
+#define HGSMI_CH_RESERVED				0x00
+/* HGCMI: setup and configuration */
+#define HGSMI_CH_HGSMI					0x01
+/* Graphics: VBVA */
+#define HGSMI_CH_VBVA					0x02
+/* Graphics: Seamless with a single guest region */
+#define HGSMI_CH_SEAMLESS				0x03
+/* Graphics: Seamless with separate host windows */
+#define HGSMI_CH_SEAMLESS2				0x04
+/* Graphics: OpenGL HW acceleration */
+#define HGSMI_CH_OPENGL					0x05
+
+/* The first channel index to be used for string mappings (inclusive) */
+#define HGSMI_CH_STRING_FIRST				0x20
+/* The last channel index for string mappings (inclusive) */
+#define HGSMI_CH_STRING_LAST				0xff
+
+#endif
diff --git a/drivers/staging/vboxvideo/hgsmi_defs.h b/drivers/staging/vboxvideo/hgsmi_defs.h
new file mode 100644
index 000000000000..5b21fb974d20
--- /dev/null
+++ b/drivers/staging/vboxvideo/hgsmi_defs.h
@@ -0,0 +1,92 @@
+/*
+ * Copyright (C) 2006-2017 Oracle Corporation
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+#ifndef __HGSMI_DEFS_H__
+#define __HGSMI_DEFS_H__
+
+/* Buffer sequence type mask. */
+#define HGSMI_BUFFER_HEADER_F_SEQ_MASK     0x03
+/* Single buffer, not a part of a sequence. */
+#define HGSMI_BUFFER_HEADER_F_SEQ_SINGLE   0x00
+/* The first buffer in a sequence. */
+#define HGSMI_BUFFER_HEADER_F_SEQ_START    0x01
+/* A middle buffer in a sequence. */
+#define HGSMI_BUFFER_HEADER_F_SEQ_CONTINUE 0x02
+/* The last buffer in a sequence. */
+#define HGSMI_BUFFER_HEADER_F_SEQ_END      0x03
+
+/* 16 bytes buffer header. */
+struct hgsmi_buffer_header {
+	u32 data_size;		/* Size of data that follows the header. */
+	u8 flags;		/* HGSMI_BUFFER_HEADER_F_* */
+	u8 channel;		/* The channel the data must be routed to. */
+	u16 channel_info;	/* Opaque to the HGSMI, used by the channel. */
+
+	union {
+		/* Opaque placeholder to make the union 8 bytes. */
+		u8 header_data[8];
+
+		/* HGSMI_BUFFER_HEADER_F_SEQ_SINGLE */
+		struct {
+			u32 reserved1;	/* A reserved field, initialize to 0. */
+			u32 reserved2;	/* A reserved field, initialize to 0. */
+		} buffer;
+
+		/* HGSMI_BUFFER_HEADER_F_SEQ_START */
+		struct {
+			/* Must be the same for all buffers in the sequence. */
+			u32 sequence_number;
+			/* The total size of the sequence. */
+			u32 sequence_size;
+		} sequence_start;
+
+		/*
+		 * HGSMI_BUFFER_HEADER_F_SEQ_CONTINUE and
+		 * HGSMI_BUFFER_HEADER_F_SEQ_END
+		 */
+		struct {
+			/* Must be the same for all buffers in the sequence. */
+			u32 sequence_number;
+			/* Data offset in the entire sequence. */
+			u32 sequence_offset;
+		} sequence_continue;
+	} u;
+} __packed;
+
+/* 8 bytes buffer tail. */
+struct hgsmi_buffer_tail {
+	/* Reserved, must be initialized to 0. */
+	u32 reserved;
+	/*
+	 * One-at-a-Time Hash: http://www.burtleburtle.net/bob/hash/doobs.html
+	 * Over the header, offset and for first 4 bytes of the tail.
+	 */
+	u32 checksum;
+} __packed;
+
+/*
+ * The size of the array of channels. Array indexes are u8.
+ * Note: the value must not be changed.
+ */
+#define HGSMI_NUMBER_OF_CHANNELS 0x100
+
+#endif
diff --git a/drivers/staging/vboxvideo/modesetting.c b/drivers/staging/vboxvideo/modesetting.c
new file mode 100644
index 000000000000..7616b8aab23a
--- /dev/null
+++ b/drivers/staging/vboxvideo/modesetting.c
@@ -0,0 +1,142 @@
+/*
+ * Copyright (C) 2006-2017 Oracle Corporation
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+#include "vbox_drv.h"
+#include "vbox_err.h"
+#include "vboxvideo_guest.h"
+#include "vboxvideo_vbe.h"
+#include "hgsmi_channels.h"
+
+/**
+ * Set a video mode via an HGSMI request.  The views must have been
+ * initialised first using @a VBoxHGSMISendViewInfo and if the mode is being
+ * set on the first display then it must be set first using registers.
+ * @param  ctx           The context containing the heap to use
+ * @param  display       The screen number
+ * @param  origin_x      The horizontal displacement relative to the first scrn
+ * @param  origin_y      The vertical displacement relative to the first screen
+ * @param  start_offset  The offset of the visible area of the framebuffer
+ *                       relative to the framebuffer start
+ * @param  pitch         The offset in bytes between the starts of two adjecent
+ *                       scan lines in video RAM
+ * @param  width         The mode width
+ * @param  height        The mode height
+ * @param  bpp           The colour depth of the mode
+ * @param  flags         Flags
+ */
+void hgsmi_process_display_info(struct gen_pool *ctx, u32 display,
+				s32 origin_x, s32 origin_y, u32 start_offset,
+				u32 pitch, u32 width, u32 height,
+				u16 bpp, u16 flags)
+{
+	struct vbva_infoscreen *p;
+
+	p = hgsmi_buffer_alloc(ctx, sizeof(*p), HGSMI_CH_VBVA,
+			       VBVA_INFO_SCREEN);
+	if (!p)
+		return;
+
+	p->view_index = display;
+	p->origin_x = origin_x;
+	p->origin_y = origin_y;
+	p->start_offset = start_offset;
+	p->line_size = pitch;
+	p->width = width;
+	p->height = height;
+	p->bits_per_pixel = bpp;
+	p->flags = flags;
+
+	hgsmi_buffer_submit(ctx, p);
+	hgsmi_buffer_free(ctx, p);
+}
+
+/**
+ * Report the rectangle relative to which absolute pointer events should be
+ * expressed.  This information remains valid until the next VBVA resize event
+ * for any screen, at which time it is reset to the bounding rectangle of all
+ * virtual screens.
+ * @param  ctx       The context containing the heap to use.
+ * @param  origin_x  Upper left X co-ordinate relative to the first screen.
+ * @param  origin_y  Upper left Y co-ordinate relative to the first screen.
+ * @param  width     Rectangle width.
+ * @param  height    Rectangle height.
+ * @returns 0 on success, -errno on failure
+ */
+int hgsmi_update_input_mapping(struct gen_pool *ctx, s32 origin_x, s32 origin_y,
+			       u32 width, u32 height)
+{
+	struct vbva_report_input_mapping *p;
+
+	p = hgsmi_buffer_alloc(ctx, sizeof(*p), HGSMI_CH_VBVA,
+			       VBVA_REPORT_INPUT_MAPPING);
+	if (!p)
+		return -ENOMEM;
+
+	p->x = origin_x;
+	p->y = origin_y;
+	p->cx = width;
+	p->cy = height;
+
+	hgsmi_buffer_submit(ctx, p);
+	hgsmi_buffer_free(ctx, p);
+
+	return 0;
+}
+
+/**
+ * Get most recent video mode hints.
+ * @param  ctx      The context containing the heap to use.
+ * @param  screens  The number of screens to query hints for, starting at 0.
+ * @param  hints    Array of vbva_modehint structures for receiving the hints.
+ * @returns 0 on success, -errno on failure
+ */
+int hgsmi_get_mode_hints(struct gen_pool *ctx, unsigned int screens,
+			 struct vbva_modehint *hints)
+{
+	struct vbva_query_mode_hints *p;
+	size_t size;
+
+	if (WARN_ON(!hints))
+		return -EINVAL;
+
+	size = screens * sizeof(struct vbva_modehint);
+	p = hgsmi_buffer_alloc(ctx, sizeof(*p) + size, HGSMI_CH_VBVA,
+			       VBVA_QUERY_MODE_HINTS);
+	if (!p)
+		return -ENOMEM;
+
+	p->hints_queried_count = screens;
+	p->hint_structure_guest_size = sizeof(struct vbva_modehint);
+	p->rc = VERR_NOT_SUPPORTED;
+
+	hgsmi_buffer_submit(ctx, p);
+
+	if (RT_FAILURE(p->rc)) {
+		hgsmi_buffer_free(ctx, p);
+		return -EIO;
+	}
+
+	memcpy(hints, ((u8 *)p) + sizeof(struct vbva_query_mode_hints), size);
+	hgsmi_buffer_free(ctx, p);
+
+	return 0;
+}
diff --git a/drivers/staging/vboxvideo/vbox_drv.c b/drivers/staging/vboxvideo/vbox_drv.c
new file mode 100644
index 000000000000..92ae1560a16d
--- /dev/null
+++ b/drivers/staging/vboxvideo/vbox_drv.c
@@ -0,0 +1,286 @@
+/*
+ * Copyright (C) 2013-2017 Oracle Corporation
+ * This file is based on ast_drv.c
+ * Copyright 2012 Red Hat Inc.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the
+ * "Software"), to deal in the Software without restriction, including
+ * without limitation the rights to use, copy, modify, merge, publish,
+ * distribute, sub license, and/or sell copies of the Software, and to
+ * permit persons to whom the Software is furnished to do so, subject to
+ * the following conditions:
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDERS, AUTHORS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM,
+ * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
+ * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
+ * USE OR OTHER DEALINGS IN THE SOFTWARE.
+ *
+ * The above copyright notice and this permission notice (including the
+ * next paragraph) shall be included in all copies or substantial portions
+ * of the Software.
+ *
+ * Authors: Dave Airlie <airlied@redhat.com>
+ *          Michael Thayer <michael.thayer@oracle.com,
+ *          Hans de Goede <hdegoede@redhat.com>
+ */
+#include <linux/module.h>
+#include <linux/console.h>
+#include <linux/vt_kern.h>
+
+#include <drm/drmP.h>
+#include <drm/drm_crtc_helper.h>
+
+#include "vbox_drv.h"
+
+int vbox_modeset = -1;
+
+MODULE_PARM_DESC(modeset, "Disable/Enable modesetting");
+module_param_named(modeset, vbox_modeset, int, 0400);
+
+static struct drm_driver driver;
+
+static const struct pci_device_id pciidlist[] = {
+	{ 0x80ee, 0xbeef, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
+	{ 0, 0, 0},
+};
+MODULE_DEVICE_TABLE(pci, pciidlist);
+
+static int vbox_pci_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
+{
+	return drm_get_pci_dev(pdev, ent, &driver);
+}
+
+static void vbox_pci_remove(struct pci_dev *pdev)
+{
+	struct drm_device *dev = pci_get_drvdata(pdev);
+
+	drm_put_dev(dev);
+}
+
+static int vbox_drm_freeze(struct drm_device *dev)
+{
+	struct vbox_private *vbox = dev->dev_private;
+
+	drm_kms_helper_poll_disable(dev);
+
+	pci_save_state(dev->pdev);
+
+	drm_fb_helper_set_suspend_unlocked(&vbox->fbdev->helper, true);
+
+	return 0;
+}
+
+static int vbox_drm_thaw(struct drm_device *dev)
+{
+	struct vbox_private *vbox = dev->dev_private;
+
+	drm_mode_config_reset(dev);
+	drm_helper_resume_force_mode(dev);
+	drm_fb_helper_set_suspend_unlocked(&vbox->fbdev->helper, false);
+
+	return 0;
+}
+
+static int vbox_drm_resume(struct drm_device *dev)
+{
+	int ret;
+
+	if (pci_enable_device(dev->pdev))
+		return -EIO;
+
+	ret = vbox_drm_thaw(dev);
+	if (ret)
+		return ret;
+
+	drm_kms_helper_poll_enable(dev);
+
+	return 0;
+}
+
+static int vbox_pm_suspend(struct device *dev)
+{
+	struct pci_dev *pdev = to_pci_dev(dev);
+	struct drm_device *ddev = pci_get_drvdata(pdev);
+	int error;
+
+	error = vbox_drm_freeze(ddev);
+	if (error)
+		return error;
+
+	pci_disable_device(pdev);
+	pci_set_power_state(pdev, PCI_D3hot);
+
+	return 0;
+}
+
+static int vbox_pm_resume(struct device *dev)
+{
+	struct drm_device *ddev = pci_get_drvdata(to_pci_dev(dev));
+
+	return vbox_drm_resume(ddev);
+}
+
+static int vbox_pm_freeze(struct device *dev)
+{
+	struct pci_dev *pdev = to_pci_dev(dev);
+	struct drm_device *ddev = pci_get_drvdata(pdev);
+
+	if (!ddev || !ddev->dev_private)
+		return -ENODEV;
+
+	return vbox_drm_freeze(ddev);
+}
+
+static int vbox_pm_thaw(struct device *dev)
+{
+	struct drm_device *ddev = pci_get_drvdata(to_pci_dev(dev));
+
+	return vbox_drm_thaw(ddev);
+}
+
+static int vbox_pm_poweroff(struct device *dev)
+{
+	struct drm_device *ddev = pci_get_drvdata(to_pci_dev(dev));
+
+	return vbox_drm_freeze(ddev);
+}
+
+static const struct dev_pm_ops vbox_pm_ops = {
+	.suspend = vbox_pm_suspend,
+	.resume = vbox_pm_resume,
+	.freeze = vbox_pm_freeze,
+	.thaw = vbox_pm_thaw,
+	.poweroff = vbox_pm_poweroff,
+	.restore = vbox_pm_resume,
+};
+
+static struct pci_driver vbox_pci_driver = {
+	.name = DRIVER_NAME,
+	.id_table = pciidlist,
+	.probe = vbox_pci_probe,
+	.remove = vbox_pci_remove,
+	.driver.pm = &vbox_pm_ops,
+};
+
+static const struct file_operations vbox_fops = {
+	.owner = THIS_MODULE,
+	.open = drm_open,
+	.release = drm_release,
+	.unlocked_ioctl = drm_ioctl,
+	.mmap = vbox_mmap,
+	.poll = drm_poll,
+#ifdef CONFIG_COMPAT
+	.compat_ioctl = drm_compat_ioctl,
+#endif
+	.read = drm_read,
+};
+
+static int vbox_master_set(struct drm_device *dev,
+			   struct drm_file *file_priv, bool from_open)
+{
+	struct vbox_private *vbox = dev->dev_private;
+
+	/*
+	 * We do not yet know whether the new owner can handle hotplug, so we
+	 * do not advertise dynamic modes on the first query and send a
+	 * tentative hotplug notification after that to see if they query again.
+	 */
+	vbox->initial_mode_queried = false;
+
+	mutex_lock(&vbox->hw_mutex);
+	/*
+	 * Disable VBVA when someone releases master in case the next person
+	 * tries tries to do VESA.
+	 */
+	/** @todo work out if anyone is likely to and whether it will work. */
+	/*
+	 * Update: we also disable it because if the new master does not do
+	 * dirty rectangle reporting (e.g. old versions of Plymouth) then at
+	 * least the first screen will still be updated. We enable it as soon
+	 * as we receive a dirty rectangle report.
+	 */
+	vbox_disable_accel(vbox);
+	mutex_unlock(&vbox->hw_mutex);
+
+	return 0;
+}
+
+static void vbox_master_drop(struct drm_device *dev, struct drm_file *file_priv)
+{
+	struct vbox_private *vbox = dev->dev_private;
+
+	/* See vbox_master_set() */
+	vbox->initial_mode_queried = false;
+
+	mutex_lock(&vbox->hw_mutex);
+	vbox_disable_accel(vbox);
+	mutex_unlock(&vbox->hw_mutex);
+}
+
+static struct drm_driver driver = {
+	.driver_features =
+	    DRIVER_MODESET | DRIVER_GEM | DRIVER_HAVE_IRQ | DRIVER_IRQ_SHARED |
+	    DRIVER_PRIME,
+	.dev_priv_size = 0,
+
+	.load = vbox_driver_load,
+	.unload = vbox_driver_unload,
+	.lastclose = vbox_driver_lastclose,
+	.master_set = vbox_master_set,
+	.master_drop = vbox_master_drop,
+	.set_busid = drm_pci_set_busid,
+
+	.fops = &vbox_fops,
+	.irq_handler = vbox_irq_handler,
+	.name = DRIVER_NAME,
+	.desc = DRIVER_DESC,
+	.date = DRIVER_DATE,
+	.major = DRIVER_MAJOR,
+	.minor = DRIVER_MINOR,
+	.patchlevel = DRIVER_PATCHLEVEL,
+
+	.gem_free_object = vbox_gem_free_object,
+	.dumb_create = vbox_dumb_create,
+	.dumb_map_offset = vbox_dumb_mmap_offset,
+	.dumb_destroy = drm_gem_dumb_destroy,
+	.prime_handle_to_fd = drm_gem_prime_handle_to_fd,
+	.prime_fd_to_handle = drm_gem_prime_fd_to_handle,
+	.gem_prime_export = drm_gem_prime_export,
+	.gem_prime_import = drm_gem_prime_import,
+	.gem_prime_pin = vbox_gem_prime_pin,
+	.gem_prime_unpin = vbox_gem_prime_unpin,
+	.gem_prime_get_sg_table = vbox_gem_prime_get_sg_table,
+	.gem_prime_import_sg_table = vbox_gem_prime_import_sg_table,
+	.gem_prime_vmap = vbox_gem_prime_vmap,
+	.gem_prime_vunmap = vbox_gem_prime_vunmap,
+	.gem_prime_mmap = vbox_gem_prime_mmap,
+};
+
+static int __init vbox_init(void)
+{
+#ifdef CONFIG_VGA_CONSOLE
+	if (vgacon_text_force() && vbox_modeset == -1)
+		return -EINVAL;
+#endif
+
+	if (vbox_modeset == 0)
+		return -EINVAL;
+
+	return drm_pci_init(&driver, &vbox_pci_driver);
+}
+
+static void __exit vbox_exit(void)
+{
+	drm_pci_exit(&driver, &vbox_pci_driver);
+}
+
+module_init(vbox_init);
+module_exit(vbox_exit);
+
+MODULE_AUTHOR("Oracle Corporation");
+MODULE_DESCRIPTION(DRIVER_DESC);
+MODULE_LICENSE("GPL and additional rights");
diff --git a/drivers/staging/vboxvideo/vbox_drv.h b/drivers/staging/vboxvideo/vbox_drv.h
new file mode 100644
index 000000000000..4b9302703b36
--- /dev/null
+++ b/drivers/staging/vboxvideo/vbox_drv.h
@@ -0,0 +1,296 @@
+/*
+ * Copyright (C) 2013-2017 Oracle Corporation
+ * This file is based on ast_drv.h
+ * Copyright 2012 Red Hat Inc.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the
+ * "Software"), to deal in the Software without restriction, including
+ * without limitation the rights to use, copy, modify, merge, publish,
+ * distribute, sub license, and/or sell copies of the Software, and to
+ * permit persons to whom the Software is furnished to do so, subject to
+ * the following conditions:
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDERS, AUTHORS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM,
+ * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
+ * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
+ * USE OR OTHER DEALINGS IN THE SOFTWARE.
+ *
+ * The above copyright notice and this permission notice (including the
+ * next paragraph) shall be included in all copies or substantial portions
+ * of the Software.
+ *
+ * Authors: Dave Airlie <airlied@redhat.com>
+ *          Michael Thayer <michael.thayer@oracle.com,
+ *          Hans de Goede <hdegoede@redhat.com>
+ */
+#ifndef __VBOX_DRV_H__
+#define __VBOX_DRV_H__
+
+#include <linux/genalloc.h>
+#include <linux/io.h>
+#include <linux/string.h>
+#include <linux/version.h>
+
+#include <drm/drmP.h>
+#include <drm/drm_encoder.h>
+#include <drm/drm_fb_helper.h>
+#include <drm/drm_gem.h>
+
+#include <drm/ttm/ttm_bo_api.h>
+#include <drm/ttm/ttm_bo_driver.h>
+#include <drm/ttm/ttm_placement.h>
+#include <drm/ttm/ttm_memory.h>
+#include <drm/ttm/ttm_module.h>
+
+#include "vboxvideo_guest.h"
+#include "vboxvideo_vbe.h"
+#include "hgsmi_ch_setup.h"
+
+#define DRIVER_NAME         "vboxvideo"
+#define DRIVER_DESC         "Oracle VM VirtualBox Graphics Card"
+#define DRIVER_DATE         "20130823"
+
+#define DRIVER_MAJOR        1
+#define DRIVER_MINOR        0
+#define DRIVER_PATCHLEVEL   0
+
+#define VBOX_MAX_CURSOR_WIDTH  64
+#define VBOX_MAX_CURSOR_HEIGHT 64
+#define CURSOR_PIXEL_COUNT (VBOX_MAX_CURSOR_WIDTH * VBOX_MAX_CURSOR_HEIGHT)
+#define CURSOR_DATA_SIZE (CURSOR_PIXEL_COUNT * 4 + CURSOR_PIXEL_COUNT / 8)
+
+#define VBOX_MAX_SCREENS  32
+
+#define GUEST_HEAP_OFFSET(vbox) ((vbox)->full_vram_size - \
+				 VBVA_ADAPTER_INFORMATION_SIZE)
+#define GUEST_HEAP_SIZE   VBVA_ADAPTER_INFORMATION_SIZE
+#define GUEST_HEAP_USABLE_SIZE (VBVA_ADAPTER_INFORMATION_SIZE - \
+				sizeof(struct hgsmi_host_flags))
+#define HOST_FLAGS_OFFSET GUEST_HEAP_USABLE_SIZE
+
+struct vbox_fbdev;
+
+struct vbox_private {
+	struct drm_device *dev;
+
+	u8 __iomem *guest_heap;
+	u8 __iomem *vbva_buffers;
+	struct gen_pool *guest_pool;
+	struct vbva_buf_ctx *vbva_info;
+	bool any_pitch;
+	u32 num_crtcs;
+	/** Amount of available VRAM, including space used for buffers. */
+	u32 full_vram_size;
+	/** Amount of available VRAM, not including space used for buffers. */
+	u32 available_vram_size;
+	/** Array of structures for receiving mode hints. */
+	struct vbva_modehint *last_mode_hints;
+
+	struct vbox_fbdev *fbdev;
+
+	int fb_mtrr;
+
+	struct {
+		struct drm_global_reference mem_global_ref;
+		struct ttm_bo_global_ref bo_global_ref;
+		struct ttm_bo_device bdev;
+	} ttm;
+
+	struct mutex hw_mutex; /* protects modeset and accel/vbva accesses */
+	/**
+	 * We decide whether or not user-space supports display hot-plug
+	 * depending on whether they react to a hot-plug event after the initial
+	 * mode query.
+	 */
+	bool initial_mode_queried;
+	struct work_struct hotplug_work;
+	u32 input_mapping_width;
+	u32 input_mapping_height;
+	/**
+	 * Is user-space using an X.Org-style layout of one large frame-buffer
+	 * encompassing all screen ones or is the fbdev console active?
+	 */
+	bool single_framebuffer;
+	u32 cursor_width;
+	u32 cursor_height;
+	u32 cursor_hot_x;
+	u32 cursor_hot_y;
+	size_t cursor_data_size;
+	u8 cursor_data[CURSOR_DATA_SIZE];
+};
+
+#undef CURSOR_PIXEL_COUNT
+#undef CURSOR_DATA_SIZE
+
+int vbox_driver_load(struct drm_device *dev, unsigned long flags);
+void vbox_driver_unload(struct drm_device *dev);
+void vbox_driver_lastclose(struct drm_device *dev);
+
+struct vbox_gem_object;
+
+struct vbox_connector {
+	struct drm_connector base;
+	char name[32];
+	struct vbox_crtc *vbox_crtc;
+	struct {
+		u16 width;
+		u16 height;
+		bool disconnected;
+	} mode_hint;
+};
+
+struct vbox_crtc {
+	struct drm_crtc base;
+	bool blanked;
+	bool disconnected;
+	unsigned int crtc_id;
+	u32 fb_offset;
+	bool cursor_enabled;
+	u16 x_hint;
+	u16 y_hint;
+};
+
+struct vbox_encoder {
+	struct drm_encoder base;
+};
+
+struct vbox_framebuffer {
+	struct drm_framebuffer base;
+	struct drm_gem_object *obj;
+};
+
+struct vbox_fbdev {
+	struct drm_fb_helper helper;
+	struct vbox_framebuffer afb;
+	int size;
+	struct ttm_bo_kmap_obj mapping;
+	int x1, y1, x2, y2;	/* dirty rect */
+	spinlock_t dirty_lock;
+};
+
+#define to_vbox_crtc(x) container_of(x, struct vbox_crtc, base)
+#define to_vbox_connector(x) container_of(x, struct vbox_connector, base)
+#define to_vbox_encoder(x) container_of(x, struct vbox_encoder, base)
+#define to_vbox_framebuffer(x) container_of(x, struct vbox_framebuffer, base)
+
+int vbox_mode_init(struct drm_device *dev);
+void vbox_mode_fini(struct drm_device *dev);
+
+#define DRM_MODE_FB_CMD drm_mode_fb_cmd2
+#define CRTC_FB(crtc) ((crtc)->primary->fb)
+
+void vbox_enable_accel(struct vbox_private *vbox);
+void vbox_disable_accel(struct vbox_private *vbox);
+void vbox_report_caps(struct vbox_private *vbox);
+
+void vbox_framebuffer_dirty_rectangles(struct drm_framebuffer *fb,
+				       struct drm_clip_rect *rects,
+				       unsigned int num_rects);
+
+int vbox_framebuffer_init(struct drm_device *dev,
+			  struct vbox_framebuffer *vbox_fb,
+			  const struct DRM_MODE_FB_CMD *mode_cmd,
+			  struct drm_gem_object *obj);
+
+int vbox_fbdev_init(struct drm_device *dev);
+void vbox_fbdev_fini(struct drm_device *dev);
+void vbox_fbdev_set_base(struct vbox_private *vbox, unsigned long gpu_addr);
+
+struct vbox_bo {
+	struct ttm_buffer_object bo;
+	struct ttm_placement placement;
+	struct ttm_bo_kmap_obj kmap;
+	struct drm_gem_object gem;
+	struct ttm_place placements[3];
+	int pin_count;
+};
+
+#define gem_to_vbox_bo(gobj) container_of((gobj), struct vbox_bo, gem)
+
+static inline struct vbox_bo *vbox_bo(struct ttm_buffer_object *bo)
+{
+	return container_of(bo, struct vbox_bo, bo);
+}
+
+#define to_vbox_obj(x) container_of(x, struct vbox_gem_object, base)
+
+int vbox_dumb_create(struct drm_file *file,
+		     struct drm_device *dev,
+		     struct drm_mode_create_dumb *args);
+
+void vbox_gem_free_object(struct drm_gem_object *obj);
+int vbox_dumb_mmap_offset(struct drm_file *file,
+			  struct drm_device *dev,
+			  u32 handle, u64 *offset);
+
+#define DRM_FILE_PAGE_OFFSET (0x10000000ULL >> PAGE_SHIFT)
+
+int vbox_mm_init(struct vbox_private *vbox);
+void vbox_mm_fini(struct vbox_private *vbox);
+
+int vbox_bo_create(struct drm_device *dev, int size, int align,
+		   u32 flags, struct vbox_bo **pvboxbo);
+
+int vbox_gem_create(struct drm_device *dev,
+		    u32 size, bool iskernel, struct drm_gem_object **obj);
+
+int vbox_bo_pin(struct vbox_bo *bo, u32 pl_flag, u64 *gpu_addr);
+int vbox_bo_unpin(struct vbox_bo *bo);
+
+static inline int vbox_bo_reserve(struct vbox_bo *bo, bool no_wait)
+{
+	int ret;
+
+	ret = ttm_bo_reserve(&bo->bo, true, no_wait, NULL);
+	if (ret) {
+		if (ret != -ERESTARTSYS && ret != -EBUSY)
+			DRM_ERROR("reserve failed %p\n", bo);
+		return ret;
+	}
+	return 0;
+}
+
+static inline void vbox_bo_unreserve(struct vbox_bo *bo)
+{
+	ttm_bo_unreserve(&bo->bo);
+}
+
+void vbox_ttm_placement(struct vbox_bo *bo, int domain);
+int vbox_bo_push_sysram(struct vbox_bo *bo);
+int vbox_mmap(struct file *filp, struct vm_area_struct *vma);
+
+/* vbox_prime.c */
+int vbox_gem_prime_pin(struct drm_gem_object *obj);
+void vbox_gem_prime_unpin(struct drm_gem_object *obj);
+struct sg_table *vbox_gem_prime_get_sg_table(struct drm_gem_object *obj);
+struct drm_gem_object *vbox_gem_prime_import_sg_table(
+	struct drm_device *dev, struct dma_buf_attachment *attach,
+	struct sg_table *table);
+void *vbox_gem_prime_vmap(struct drm_gem_object *obj);
+void vbox_gem_prime_vunmap(struct drm_gem_object *obj, void *vaddr);
+int vbox_gem_prime_mmap(struct drm_gem_object *obj,
+			struct vm_area_struct *area);
+
+/* vbox_irq.c */
+int vbox_irq_init(struct vbox_private *vbox);
+void vbox_irq_fini(struct vbox_private *vbox);
+void vbox_report_hotplug(struct vbox_private *vbox);
+irqreturn_t vbox_irq_handler(int irq, void *arg);
+
+/* vbox_hgsmi.c */
+void *hgsmi_buffer_alloc(struct gen_pool *guest_pool, size_t size,
+			 u8 channel, u16 channel_info);
+void hgsmi_buffer_free(struct gen_pool *guest_pool, void *buf);
+int hgsmi_buffer_submit(struct gen_pool *guest_pool, void *buf);
+
+static inline void vbox_write_ioport(u16 index, u16 data)
+{
+	outw(index, VBE_DISPI_IOPORT_INDEX);
+	outw(data, VBE_DISPI_IOPORT_DATA);
+}
+
+#endif
diff --git a/drivers/staging/vboxvideo/vbox_err.h b/drivers/staging/vboxvideo/vbox_err.h
new file mode 100644
index 000000000000..562db8630eb0
--- /dev/null
+++ b/drivers/staging/vboxvideo/vbox_err.h
@@ -0,0 +1,50 @@
+/*
+ * Copyright (C) 2017 Oracle Corporation
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+#ifndef __VBOX_ERR_H__
+#define __VBOX_ERR_H__
+
+/**
+ * @name VirtualBox virtual-hardware error macros
+ * @{
+ */
+
+#define VINF_SUCCESS                        0
+#define VERR_INVALID_PARAMETER              (-2)
+#define VERR_INVALID_POINTER                (-6)
+#define VERR_NO_MEMORY                      (-8)
+#define VERR_NOT_IMPLEMENTED                (-12)
+#define VERR_INVALID_FUNCTION               (-36)
+#define VERR_NOT_SUPPORTED                  (-37)
+#define VERR_TOO_MUCH_DATA                  (-42)
+#define VERR_INVALID_STATE                  (-79)
+#define VERR_OUT_OF_RESOURCES               (-80)
+#define VERR_ALREADY_EXISTS                 (-105)
+#define VERR_INTERNAL_ERROR                 (-225)
+
+#define RT_SUCCESS_NP(rc)   ((int)(rc) >= VINF_SUCCESS)
+#define RT_SUCCESS(rc)      (likely(RT_SUCCESS_NP(rc)))
+#define RT_FAILURE(rc)      (unlikely(!RT_SUCCESS_NP(rc)))
+
+/** @}  */
+
+#endif
diff --git a/drivers/staging/vboxvideo/vbox_fb.c b/drivers/staging/vboxvideo/vbox_fb.c
new file mode 100644
index 000000000000..35f6d9f8c203
--- /dev/null
+++ b/drivers/staging/vboxvideo/vbox_fb.c
@@ -0,0 +1,412 @@
+/*
+ * Copyright (C) 2013-2017 Oracle Corporation
+ * This file is based on ast_fb.c
+ * Copyright 2012 Red Hat Inc.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the
+ * "Software"), to deal in the Software without restriction, including
+ * without limitation the rights to use, copy, modify, merge, publish,
+ * distribute, sub license, and/or sell copies of the Software, and to
+ * permit persons to whom the Software is furnished to do so, subject to
+ * the following conditions:
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDERS, AUTHORS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM,
+ * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
+ * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
+ * USE OR OTHER DEALINGS IN THE SOFTWARE.
+ *
+ * The above copyright notice and this permission notice (including the
+ * next paragraph) shall be included in all copies or substantial portions
+ * of the Software.
+ *
+ * Authors: Dave Airlie <airlied@redhat.com>
+ *          Michael Thayer <michael.thayer@oracle.com,
+ */
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/errno.h>
+#include <linux/string.h>
+#include <linux/mm.h>
+#include <linux/tty.h>
+#include <linux/sysrq.h>
+#include <linux/delay.h>
+#include <linux/fb.h>
+#include <linux/init.h>
+
+#include <drm/drmP.h>
+#include <drm/drm_crtc.h>
+#include <drm/drm_fb_helper.h>
+#include <drm/drm_crtc_helper.h>
+
+#include "vbox_drv.h"
+#include "vboxvideo.h"
+
+#define VBOX_DIRTY_DELAY (HZ / 30)
+/**
+ * Tell the host about dirty rectangles to update.
+ */
+static void vbox_dirty_update(struct vbox_fbdev *fbdev,
+			      int x, int y, int width, int height)
+{
+	struct drm_gem_object *obj;
+	struct vbox_bo *bo;
+	int ret = -EBUSY;
+	bool store_for_later = false;
+	int x2, y2;
+	unsigned long flags;
+	struct drm_clip_rect rect;
+
+	obj = fbdev->afb.obj;
+	bo = gem_to_vbox_bo(obj);
+
+	/*
+	 * try and reserve the BO, if we fail with busy
+	 * then the BO is being moved and we should
+	 * store up the damage until later.
+	 */
+	if (drm_can_sleep())
+		ret = vbox_bo_reserve(bo, true);
+	if (ret) {
+		if (ret != -EBUSY)
+			return;
+
+		store_for_later = true;
+	}
+
+	x2 = x + width - 1;
+	y2 = y + height - 1;
+	spin_lock_irqsave(&fbdev->dirty_lock, flags);
+
+	if (fbdev->y1 < y)
+		y = fbdev->y1;
+	if (fbdev->y2 > y2)
+		y2 = fbdev->y2;
+	if (fbdev->x1 < x)
+		x = fbdev->x1;
+	if (fbdev->x2 > x2)
+		x2 = fbdev->x2;
+
+	if (store_for_later) {
+		fbdev->x1 = x;
+		fbdev->x2 = x2;
+		fbdev->y1 = y;
+		fbdev->y2 = y2;
+		spin_unlock_irqrestore(&fbdev->dirty_lock, flags);
+		return;
+	}
+
+	fbdev->x1 = INT_MAX;
+	fbdev->y1 = INT_MAX;
+	fbdev->x2 = 0;
+	fbdev->y2 = 0;
+
+	spin_unlock_irqrestore(&fbdev->dirty_lock, flags);
+
+	/*
+	 * Not sure why the original code subtracted 1 here, but I will keep
+	 * it that way to avoid unnecessary differences.
+	 */
+	rect.x1 = x;
+	rect.x2 = x2 + 1;
+	rect.y1 = y;
+	rect.y2 = y2 + 1;
+	vbox_framebuffer_dirty_rectangles(&fbdev->afb.base, &rect, 1);
+
+	vbox_bo_unreserve(bo);
+}
+
+#ifdef CONFIG_FB_DEFERRED_IO
+static void vbox_deferred_io(struct fb_info *info, struct list_head *pagelist)
+{
+	struct vbox_fbdev *fbdev = info->par;
+	unsigned long start, end, min, max;
+	struct page *page;
+	int y1, y2;
+
+	min = ULONG_MAX;
+	max = 0;
+	list_for_each_entry(page, pagelist, lru) {
+		start = page->index << PAGE_SHIFT;
+		end = start + PAGE_SIZE - 1;
+		min = min(min, start);
+		max = max(max, end);
+	}
+
+	if (min < max) {
+		y1 = min / info->fix.line_length;
+		y2 = (max / info->fix.line_length) + 1;
+		DRM_INFO("%s: Calling dirty update: 0, %d, %d, %d\n",
+			 __func__, y1, info->var.xres, y2 - y1 - 1);
+		vbox_dirty_update(fbdev, 0, y1, info->var.xres, y2 - y1 - 1);
+	}
+}
+
+static struct fb_deferred_io vbox_defio = {
+	.delay = VBOX_DIRTY_DELAY,
+	.deferred_io = vbox_deferred_io,
+};
+#endif
+
+static void vbox_fillrect(struct fb_info *info, const struct fb_fillrect *rect)
+{
+	struct vbox_fbdev *fbdev = info->par;
+
+	sys_fillrect(info, rect);
+	vbox_dirty_update(fbdev, rect->dx, rect->dy, rect->width, rect->height);
+}
+
+static void vbox_copyarea(struct fb_info *info, const struct fb_copyarea *area)
+{
+	struct vbox_fbdev *fbdev = info->par;
+
+	sys_copyarea(info, area);
+	vbox_dirty_update(fbdev, area->dx, area->dy, area->width, area->height);
+}
+
+static void vbox_imageblit(struct fb_info *info, const struct fb_image *image)
+{
+	struct vbox_fbdev *fbdev = info->par;
+
+	sys_imageblit(info, image);
+	vbox_dirty_update(fbdev, image->dx, image->dy, image->width,
+			  image->height);
+}
+
+static struct fb_ops vboxfb_ops = {
+	.owner = THIS_MODULE,
+	.fb_check_var = drm_fb_helper_check_var,
+	.fb_set_par = drm_fb_helper_set_par,
+	.fb_fillrect = vbox_fillrect,
+	.fb_copyarea = vbox_copyarea,
+	.fb_imageblit = vbox_imageblit,
+	.fb_pan_display = drm_fb_helper_pan_display,
+	.fb_blank = drm_fb_helper_blank,
+	.fb_setcmap = drm_fb_helper_setcmap,
+	.fb_debug_enter = drm_fb_helper_debug_enter,
+	.fb_debug_leave = drm_fb_helper_debug_leave,
+};
+
+static int vboxfb_create_object(struct vbox_fbdev *fbdev,
+				struct DRM_MODE_FB_CMD *mode_cmd,
+				struct drm_gem_object **gobj_p)
+{
+	struct drm_device *dev = fbdev->helper.dev;
+	u32 size;
+	struct drm_gem_object *gobj;
+	u32 pitch = mode_cmd->pitches[0];
+	int ret;
+
+	size = pitch * mode_cmd->height;
+	ret = vbox_gem_create(dev, size, true, &gobj);
+	if (ret)
+		return ret;
+
+	*gobj_p = gobj;
+
+	return 0;
+}
+
+static int vboxfb_create(struct drm_fb_helper *helper,
+			 struct drm_fb_helper_surface_size *sizes)
+{
+	struct vbox_fbdev *fbdev =
+	    container_of(helper, struct vbox_fbdev, helper);
+	struct drm_device *dev = fbdev->helper.dev;
+	struct DRM_MODE_FB_CMD mode_cmd;
+	struct drm_framebuffer *fb;
+	struct fb_info *info;
+	struct device *device = &dev->pdev->dev;
+	struct drm_gem_object *gobj;
+	struct vbox_bo *bo;
+	int size, ret;
+	u32 pitch;
+
+	mode_cmd.width = sizes->surface_width;
+	mode_cmd.height = sizes->surface_height;
+	pitch = mode_cmd.width * ((sizes->surface_bpp + 7) / 8);
+	mode_cmd.pixel_format = drm_mode_legacy_fb_format(sizes->surface_bpp,
+							  sizes->surface_depth);
+	mode_cmd.pitches[0] = pitch;
+
+	size = pitch * mode_cmd.height;
+
+	ret = vboxfb_create_object(fbdev, &mode_cmd, &gobj);
+	if (ret) {
+		DRM_ERROR("failed to create fbcon backing object %d\n", ret);
+		return ret;
+	}
+
+	ret = vbox_framebuffer_init(dev, &fbdev->afb, &mode_cmd, gobj);
+	if (ret)
+		return ret;
+
+	bo = gem_to_vbox_bo(gobj);
+
+	ret = vbox_bo_reserve(bo, false);
+	if (ret)
+		return ret;
+
+	ret = vbox_bo_pin(bo, TTM_PL_FLAG_VRAM, NULL);
+	if (ret) {
+		vbox_bo_unreserve(bo);
+		return ret;
+	}
+
+	ret = ttm_bo_kmap(&bo->bo, 0, bo->bo.num_pages, &bo->kmap);
+	vbox_bo_unreserve(bo);
+	if (ret) {
+		DRM_ERROR("failed to kmap fbcon\n");
+		return ret;
+	}
+
+	info = framebuffer_alloc(0, device);
+	if (!info)
+		return -ENOMEM;
+	info->par = fbdev;
+
+	fbdev->size = size;
+
+	fb = &fbdev->afb.base;
+	fbdev->helper.fb = fb;
+	fbdev->helper.fbdev = info;
+
+	strcpy(info->fix.id, "vboxdrmfb");
+
+	/*
+	 * The last flag forces a mode set on VT switches even if the kernel
+	 * does not think it is needed.
+	 */
+	info->flags = FBINFO_DEFAULT | FBINFO_CAN_FORCE_OUTPUT |
+		      FBINFO_MISC_ALWAYS_SETPAR;
+	info->fbops = &vboxfb_ops;
+
+	ret = fb_alloc_cmap(&info->cmap, 256, 0);
+	if (ret)
+		return -ENOMEM;
+
+	/*
+	 * This seems to be done for safety checking that the framebuffer
+	 * is not registered twice by different drivers.
+	 */
+	info->apertures = alloc_apertures(1);
+	if (!info->apertures)
+		return -ENOMEM;
+	info->apertures->ranges[0].base = pci_resource_start(dev->pdev, 0);
+	info->apertures->ranges[0].size = pci_resource_len(dev->pdev, 0);
+
+	drm_fb_helper_fill_fix(info, fb->pitches[0], fb->format->depth);
+	drm_fb_helper_fill_var(info, &fbdev->helper, sizes->fb_width,
+			       sizes->fb_height);
+
+	info->screen_base = bo->kmap.virtual;
+	info->screen_size = size;
+
+#ifdef CONFIG_FB_DEFERRED_IO
+	info->fbdefio = &vbox_defio;
+	fb_deferred_io_init(info);
+#endif
+
+	info->pixmap.flags = FB_PIXMAP_SYSTEM;
+
+	DRM_DEBUG_KMS("allocated %dx%d\n", fb->width, fb->height);
+
+	return 0;
+}
+
+static void vbox_fb_gamma_set(struct drm_crtc *crtc, u16 red, u16 green,
+			      u16 blue, int regno)
+{
+}
+
+static void vbox_fb_gamma_get(struct drm_crtc *crtc, u16 *red, u16 *green,
+			      u16 *blue, int regno)
+{
+	*red = regno;
+	*green = regno;
+	*blue = regno;
+}
+
+static struct drm_fb_helper_funcs vbox_fb_helper_funcs = {
+	.gamma_set = vbox_fb_gamma_set,
+	.gamma_get = vbox_fb_gamma_get,
+	.fb_probe = vboxfb_create,
+};
+
+void vbox_fbdev_fini(struct drm_device *dev)
+{
+	struct vbox_private *vbox = dev->dev_private;
+	struct vbox_fbdev *fbdev = vbox->fbdev;
+	struct vbox_framebuffer *afb = &fbdev->afb;
+
+	drm_fb_helper_unregister_fbi(&fbdev->helper);
+
+	if (afb->obj) {
+		struct vbox_bo *bo = gem_to_vbox_bo(afb->obj);
+
+		if (!vbox_bo_reserve(bo, false)) {
+			if (bo->kmap.virtual)
+				ttm_bo_kunmap(&bo->kmap);
+			/*
+			 * QXL does this, but is it really needed before
+			 * freeing?
+			 */
+			if (bo->pin_count)
+				vbox_bo_unpin(bo);
+			vbox_bo_unreserve(bo);
+		}
+		drm_gem_object_unreference_unlocked(afb->obj);
+		afb->obj = NULL;
+	}
+	drm_fb_helper_fini(&fbdev->helper);
+
+	drm_framebuffer_unregister_private(&afb->base);
+	drm_framebuffer_cleanup(&afb->base);
+}
+
+int vbox_fbdev_init(struct drm_device *dev)
+{
+	struct vbox_private *vbox = dev->dev_private;
+	struct vbox_fbdev *fbdev;
+	int ret;
+
+	fbdev = devm_kzalloc(dev->dev, sizeof(*fbdev), GFP_KERNEL);
+	if (!fbdev)
+		return -ENOMEM;
+
+	vbox->fbdev = fbdev;
+	spin_lock_init(&fbdev->dirty_lock);
+
+	drm_fb_helper_prepare(dev, &fbdev->helper, &vbox_fb_helper_funcs);
+	ret = drm_fb_helper_init(dev, &fbdev->helper, vbox->num_crtcs);
+	if (ret)
+		return ret;
+
+	ret = drm_fb_helper_single_add_all_connectors(&fbdev->helper);
+	if (ret)
+		goto err_fini;
+
+	/* disable all the possible outputs/crtcs before entering KMS mode */
+	drm_helper_disable_unused_functions(dev);
+
+	ret = drm_fb_helper_initial_config(&fbdev->helper, 32);
+	if (ret)
+		goto err_fini;
+
+	return 0;
+
+err_fini:
+	drm_fb_helper_fini(&fbdev->helper);
+	return ret;
+}
+
+void vbox_fbdev_set_base(struct vbox_private *vbox, unsigned long gpu_addr)
+{
+	struct fb_info *fbdev = vbox->fbdev->helper.fbdev;
+
+	fbdev->fix.smem_start = fbdev->apertures->ranges[0].base + gpu_addr;
+	fbdev->fix.smem_len = vbox->available_vram_size - gpu_addr;
+}
diff --git a/drivers/staging/vboxvideo/vbox_hgsmi.c b/drivers/staging/vboxvideo/vbox_hgsmi.c
new file mode 100644
index 000000000000..822fd31121cb
--- /dev/null
+++ b/drivers/staging/vboxvideo/vbox_hgsmi.c
@@ -0,0 +1,115 @@
+/*
+ * Copyright (C) 2017 Oracle Corporation
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the
+ * "Software"), to deal in the Software without restriction, including
+ * without limitation the rights to use, copy, modify, merge, publish,
+ * distribute, sub license, and/or sell copies of the Software, and to
+ * permit persons to whom the Software is furnished to do so, subject to
+ * the following conditions:
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDERS, AUTHORS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM,
+ * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
+ * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
+ * USE OR OTHER DEALINGS IN THE SOFTWARE.
+ *
+ * The above copyright notice and this permission notice (including the
+ * next paragraph) shall be included in all copies or substantial portions
+ * of the Software.
+ *
+ * Authors: Hans de Goede <hdegoede@redhat.com>
+ */
+
+#include "vbox_drv.h"
+#include "vboxvideo_vbe.h"
+#include "hgsmi_defs.h"
+
+/* One-at-a-Time Hash from http://www.burtleburtle.net/bob/hash/doobs.html */
+static u32 hgsmi_hash_process(u32 hash, const u8 *data, int size)
+{
+	while (size--) {
+		hash += *data++;
+		hash += (hash << 10);
+		hash ^= (hash >> 6);
+	}
+
+	return hash;
+}
+
+static u32 hgsmi_hash_end(u32 hash)
+{
+	hash += (hash << 3);
+	hash ^= (hash >> 11);
+	hash += (hash << 15);
+
+	return hash;
+}
+
+/* Not really a checksum but that is the naming used in all vbox code */
+static u32 hgsmi_checksum(u32 offset,
+			  const struct hgsmi_buffer_header *header,
+			  const struct hgsmi_buffer_tail *tail)
+{
+	u32 checksum;
+
+	checksum = hgsmi_hash_process(0, (u8 *)&offset, sizeof(offset));
+	checksum = hgsmi_hash_process(checksum, (u8 *)header, sizeof(*header));
+	/* 4 -> Do not checksum the checksum itself */
+	checksum = hgsmi_hash_process(checksum, (u8 *)tail, 4);
+
+	return hgsmi_hash_end(checksum);
+}
+
+void *hgsmi_buffer_alloc(struct gen_pool *guest_pool, size_t size,
+			 u8 channel, u16 channel_info)
+{
+	struct hgsmi_buffer_header *h;
+	struct hgsmi_buffer_tail *t;
+	size_t total_size;
+	dma_addr_t offset;
+
+	total_size = size + sizeof(*h) + sizeof(*t);
+	h = gen_pool_dma_alloc(guest_pool, total_size, &offset);
+	if (!h)
+		return NULL;
+
+	t = (struct hgsmi_buffer_tail *)((u8 *)h + sizeof(*h) + size);
+
+	h->flags = HGSMI_BUFFER_HEADER_F_SEQ_SINGLE;
+	h->data_size = size;
+	h->channel = channel;
+	h->channel_info = channel_info;
+	memset(&h->u.header_data, 0, sizeof(h->u.header_data));
+
+	t->reserved = 0;
+	t->checksum = hgsmi_checksum(offset, h, t);
+
+	return (u8 *)h + sizeof(*h);
+}
+
+void hgsmi_buffer_free(struct gen_pool *guest_pool, void *buf)
+{
+	struct hgsmi_buffer_header *h =
+		(struct hgsmi_buffer_header *)((u8 *)buf - sizeof(*h));
+	size_t total_size = h->data_size + sizeof(*h) +
+					     sizeof(struct hgsmi_buffer_tail);
+
+	gen_pool_free(guest_pool, (unsigned long)h, total_size);
+}
+
+int hgsmi_buffer_submit(struct gen_pool *guest_pool, void *buf)
+{
+	phys_addr_t offset;
+
+	offset = gen_pool_virt_to_phys(guest_pool, (unsigned long)buf -
+				       sizeof(struct hgsmi_buffer_header));
+	outl(offset, VGA_PORT_HGSMI_GUEST);
+	/* Make the compiler aware that the host has changed memory. */
+	mb();
+
+	return 0;
+}
diff --git a/drivers/staging/vboxvideo/vbox_irq.c b/drivers/staging/vboxvideo/vbox_irq.c
new file mode 100644
index 000000000000..3ca8bec62ac4
--- /dev/null
+++ b/drivers/staging/vboxvideo/vbox_irq.c
@@ -0,0 +1,197 @@
+/*
+ * Copyright (C) 2016-2017 Oracle Corporation
+ * This file is based on qxl_irq.c
+ * Copyright 2013 Red Hat Inc.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ *
+ * Authors: Dave Airlie
+ *          Alon Levy
+ *          Michael Thayer <michael.thayer@oracle.com,
+ *          Hans de Goede <hdegoede@redhat.com>
+ */
+
+#include <drm/drm_crtc_helper.h>
+
+#include "vbox_drv.h"
+#include "vboxvideo.h"
+
+static void vbox_clear_irq(void)
+{
+	outl((u32)~0, VGA_PORT_HGSMI_HOST);
+}
+
+static u32 vbox_get_flags(struct vbox_private *vbox)
+{
+	return readl(vbox->guest_heap + HOST_FLAGS_OFFSET);
+}
+
+void vbox_report_hotplug(struct vbox_private *vbox)
+{
+	schedule_work(&vbox->hotplug_work);
+}
+
+irqreturn_t vbox_irq_handler(int irq, void *arg)
+{
+	struct drm_device *dev = (struct drm_device *)arg;
+	struct vbox_private *vbox = (struct vbox_private *)dev->dev_private;
+	u32 host_flags = vbox_get_flags(vbox);
+
+	if (!(host_flags & HGSMIHOSTFLAGS_IRQ))
+		return IRQ_NONE;
+
+	/*
+	 * Due to a bug in the initial host implementation of hot-plug irqs,
+	 * the hot-plug and cursor capability flags were never cleared.
+	 * Fortunately we can tell when they would have been set by checking
+	 * that the VSYNC flag is not set.
+	 */
+	if (host_flags &
+	    (HGSMIHOSTFLAGS_HOTPLUG | HGSMIHOSTFLAGS_CURSOR_CAPABILITIES) &&
+	    !(host_flags & HGSMIHOSTFLAGS_VSYNC))
+		vbox_report_hotplug(vbox);
+
+	vbox_clear_irq();
+
+	return IRQ_HANDLED;
+}
+
+/**
+ * Check that the position hints provided by the host are suitable for GNOME
+ * shell (i.e. all screens disjoint and hints for all enabled screens) and if
+ * not replace them with default ones.  Providing valid hints improves the
+ * chances that we will get a known screen layout for pointer mapping.
+ */
+static void validate_or_set_position_hints(struct vbox_private *vbox)
+{
+	struct vbva_modehint *hintsi, *hintsj;
+	bool valid = true;
+	u16 currentx = 0;
+	int i, j;
+
+	for (i = 0; i < vbox->num_crtcs; ++i) {
+		for (j = 0; j < i; ++j) {
+			hintsi = &vbox->last_mode_hints[i];
+			hintsj = &vbox->last_mode_hints[j];
+
+			if (hintsi->enabled && hintsj->enabled) {
+				if (hintsi->dx >= 0xffff ||
+				    hintsi->dy >= 0xffff ||
+				    hintsj->dx >= 0xffff ||
+				    hintsj->dy >= 0xffff ||
+				    (hintsi->dx <
+					hintsj->dx + (hintsj->cx & 0x8fff) &&
+				     hintsi->dx + (hintsi->cx & 0x8fff) >
+					hintsj->dx) ||
+				    (hintsi->dy <
+					hintsj->dy + (hintsj->cy & 0x8fff) &&
+				     hintsi->dy + (hintsi->cy & 0x8fff) >
+					hintsj->dy))
+					valid = false;
+			}
+		}
+	}
+	if (!valid)
+		for (i = 0; i < vbox->num_crtcs; ++i) {
+			if (vbox->last_mode_hints[i].enabled) {
+				vbox->last_mode_hints[i].dx = currentx;
+				vbox->last_mode_hints[i].dy = 0;
+				currentx +=
+				    vbox->last_mode_hints[i].cx & 0x8fff;
+			}
+		}
+}
+
+/**
+ * Query the host for the most recent video mode hints.
+ */
+static void vbox_update_mode_hints(struct vbox_private *vbox)
+{
+	struct drm_device *dev = vbox->dev;
+	struct drm_connector *connector;
+	struct vbox_connector *vbox_conn;
+	struct vbva_modehint *hints;
+	u16 flags;
+	bool disconnected;
+	unsigned int crtc_id;
+	int ret;
+
+	ret = hgsmi_get_mode_hints(vbox->guest_pool, vbox->num_crtcs,
+				   vbox->last_mode_hints);
+	if (ret) {
+		DRM_ERROR("vboxvideo: hgsmi_get_mode_hints failed: %d\n", ret);
+		return;
+	}
+
+	validate_or_set_position_hints(vbox);
+	drm_modeset_lock_all(dev);
+	list_for_each_entry(connector, &dev->mode_config.connector_list, head) {
+		vbox_conn = to_vbox_connector(connector);
+
+		hints = &vbox->last_mode_hints[vbox_conn->vbox_crtc->crtc_id];
+		if (hints->magic != VBVAMODEHINT_MAGIC)
+			continue;
+
+		disconnected = !(hints->enabled);
+		crtc_id = vbox_conn->vbox_crtc->crtc_id;
+		vbox_conn->mode_hint.width = hints->cx & 0x8fff;
+		vbox_conn->mode_hint.height = hints->cy & 0x8fff;
+		vbox_conn->vbox_crtc->x_hint = hints->dx;
+		vbox_conn->vbox_crtc->y_hint = hints->dy;
+		vbox_conn->mode_hint.disconnected = disconnected;
+
+		if (vbox_conn->vbox_crtc->disconnected == disconnected)
+			continue;
+
+		if (disconnected)
+			flags = VBVA_SCREEN_F_ACTIVE | VBVA_SCREEN_F_DISABLED;
+		else
+			flags = VBVA_SCREEN_F_ACTIVE | VBVA_SCREEN_F_BLANK;
+
+		hgsmi_process_display_info(vbox->guest_pool, crtc_id, 0, 0, 0,
+					   hints->cx * 4, hints->cx,
+					   hints->cy, 0, flags);
+
+		vbox_conn->vbox_crtc->disconnected = disconnected;
+	}
+	drm_modeset_unlock_all(dev);
+}
+
+static void vbox_hotplug_worker(struct work_struct *work)
+{
+	struct vbox_private *vbox = container_of(work, struct vbox_private,
+						 hotplug_work);
+
+	vbox_update_mode_hints(vbox);
+	drm_kms_helper_hotplug_event(vbox->dev);
+}
+
+int vbox_irq_init(struct vbox_private *vbox)
+{
+	INIT_WORK(&vbox->hotplug_work, vbox_hotplug_worker);
+	vbox_update_mode_hints(vbox);
+
+	return drm_irq_install(vbox->dev, vbox->dev->pdev->irq);
+}
+
+void vbox_irq_fini(struct vbox_private *vbox)
+{
+	drm_irq_uninstall(vbox->dev);
+	flush_work(&vbox->hotplug_work);
+}
diff --git a/drivers/staging/vboxvideo/vbox_main.c b/drivers/staging/vboxvideo/vbox_main.c
new file mode 100644
index 000000000000..d0c6ec75a3c7
--- /dev/null
+++ b/drivers/staging/vboxvideo/vbox_main.c
@@ -0,0 +1,534 @@
+/*
+ * Copyright (C) 2013-2017 Oracle Corporation
+ * This file is based on ast_main.c
+ * Copyright 2012 Red Hat Inc.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the
+ * "Software"), to deal in the Software without restriction, including
+ * without limitation the rights to use, copy, modify, merge, publish,
+ * distribute, sub license, and/or sell copies of the Software, and to
+ * permit persons to whom the Software is furnished to do so, subject to
+ * the following conditions:
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDERS, AUTHORS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM,
+ * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
+ * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
+ * USE OR OTHER DEALINGS IN THE SOFTWARE.
+ *
+ * The above copyright notice and this permission notice (including the
+ * next paragraph) shall be included in all copies or substantial portions
+ * of the Software.
+ *
+ * Authors: Dave Airlie <airlied@redhat.com>,
+ *          Michael Thayer <michael.thayer@oracle.com,
+ *          Hans de Goede <hdegoede@redhat.com>
+ */
+#include <drm/drm_fb_helper.h>
+#include <drm/drm_crtc_helper.h>
+
+#include "vbox_drv.h"
+#include "vbox_err.h"
+#include "vboxvideo_guest.h"
+#include "vboxvideo_vbe.h"
+
+static void vbox_user_framebuffer_destroy(struct drm_framebuffer *fb)
+{
+	struct vbox_framebuffer *vbox_fb = to_vbox_framebuffer(fb);
+
+	if (vbox_fb->obj)
+		drm_gem_object_unreference_unlocked(vbox_fb->obj);
+
+	drm_framebuffer_cleanup(fb);
+	kfree(fb);
+}
+
+void vbox_enable_accel(struct vbox_private *vbox)
+{
+	unsigned int i;
+	struct vbva_buffer *vbva;
+
+	if (!vbox->vbva_info || !vbox->vbva_buffers) {
+		/* Should never happen... */
+		DRM_ERROR("vboxvideo: failed to set up VBVA.\n");
+		return;
+	}
+
+	for (i = 0; i < vbox->num_crtcs; ++i) {
+		if (vbox->vbva_info[i].vbva)
+			continue;
+
+		vbva = (void *)vbox->vbva_buffers + i * VBVA_MIN_BUFFER_SIZE;
+		if (!vbva_enable(&vbox->vbva_info[i],
+				 vbox->guest_pool, vbva, i)) {
+			/* very old host or driver error. */
+			DRM_ERROR("vboxvideo: vbva_enable failed\n");
+			return;
+		}
+	}
+}
+
+void vbox_disable_accel(struct vbox_private *vbox)
+{
+	unsigned int i;
+
+	for (i = 0; i < vbox->num_crtcs; ++i)
+		vbva_disable(&vbox->vbva_info[i], vbox->guest_pool, i);
+}
+
+void vbox_report_caps(struct vbox_private *vbox)
+{
+	u32 caps = VBVACAPS_DISABLE_CURSOR_INTEGRATION |
+		   VBVACAPS_IRQ | VBVACAPS_USE_VBVA_ONLY;
+
+	if (vbox->initial_mode_queried)
+		caps |= VBVACAPS_VIDEO_MODE_HINTS;
+
+	hgsmi_send_caps_info(vbox->guest_pool, caps);
+}
+
+/**
+ * Send information about dirty rectangles to VBVA.  If necessary we enable
+ * VBVA first, as this is normally disabled after a change of master in case
+ * the new master does not send dirty rectangle information (is this even
+ * allowed?)
+ */
+void vbox_framebuffer_dirty_rectangles(struct drm_framebuffer *fb,
+				       struct drm_clip_rect *rects,
+				       unsigned int num_rects)
+{
+	struct vbox_private *vbox = fb->dev->dev_private;
+	struct drm_crtc *crtc;
+	unsigned int i;
+
+	mutex_lock(&vbox->hw_mutex);
+	list_for_each_entry(crtc, &fb->dev->mode_config.crtc_list, head) {
+		if (CRTC_FB(crtc) != fb)
+			continue;
+
+		vbox_enable_accel(vbox);
+
+		for (i = 0; i < num_rects; ++i) {
+			struct vbva_cmd_hdr cmd_hdr;
+			unsigned int crtc_id = to_vbox_crtc(crtc)->crtc_id;
+
+			if ((rects[i].x1 > crtc->x + crtc->hwmode.hdisplay) ||
+			    (rects[i].y1 > crtc->y + crtc->hwmode.vdisplay) ||
+			    (rects[i].x2 < crtc->x) ||
+			    (rects[i].y2 < crtc->y))
+				continue;
+
+			cmd_hdr.x = (s16)rects[i].x1;
+			cmd_hdr.y = (s16)rects[i].y1;
+			cmd_hdr.w = (u16)rects[i].x2 - rects[i].x1;
+			cmd_hdr.h = (u16)rects[i].y2 - rects[i].y1;
+
+			if (!vbva_buffer_begin_update(&vbox->vbva_info[crtc_id],
+						      vbox->guest_pool))
+				continue;
+
+			vbva_write(&vbox->vbva_info[crtc_id], vbox->guest_pool,
+				   &cmd_hdr, sizeof(cmd_hdr));
+			vbva_buffer_end_update(&vbox->vbva_info[crtc_id]);
+		}
+	}
+	mutex_unlock(&vbox->hw_mutex);
+}
+
+static int vbox_user_framebuffer_dirty(struct drm_framebuffer *fb,
+				       struct drm_file *file_priv,
+				       unsigned int flags, unsigned int color,
+				       struct drm_clip_rect *rects,
+				       unsigned int num_rects)
+{
+	vbox_framebuffer_dirty_rectangles(fb, rects, num_rects);
+
+	return 0;
+}
+
+static const struct drm_framebuffer_funcs vbox_fb_funcs = {
+	.destroy = vbox_user_framebuffer_destroy,
+	.dirty = vbox_user_framebuffer_dirty,
+};
+
+int vbox_framebuffer_init(struct drm_device *dev,
+			  struct vbox_framebuffer *vbox_fb,
+			  const struct DRM_MODE_FB_CMD *mode_cmd,
+			  struct drm_gem_object *obj)
+{
+	int ret;
+
+	drm_helper_mode_fill_fb_struct(dev, &vbox_fb->base, mode_cmd);
+	vbox_fb->obj = obj;
+	ret = drm_framebuffer_init(dev, &vbox_fb->base, &vbox_fb_funcs);
+	if (ret) {
+		DRM_ERROR("framebuffer init failed %d\n", ret);
+		return ret;
+	}
+
+	return 0;
+}
+
+static struct drm_framebuffer *vbox_user_framebuffer_create(
+		struct drm_device *dev,
+		struct drm_file *filp,
+		const struct drm_mode_fb_cmd2 *mode_cmd)
+{
+	struct drm_gem_object *obj;
+	struct vbox_framebuffer *vbox_fb;
+	int ret = -ENOMEM;
+
+	obj = drm_gem_object_lookup(filp, mode_cmd->handles[0]);
+	if (!obj)
+		return ERR_PTR(-ENOENT);
+
+	vbox_fb = kzalloc(sizeof(*vbox_fb), GFP_KERNEL);
+	if (!vbox_fb)
+		goto err_unref_obj;
+
+	ret = vbox_framebuffer_init(dev, vbox_fb, mode_cmd, obj);
+	if (ret)
+		goto err_free_vbox_fb;
+
+	return &vbox_fb->base;
+
+err_free_vbox_fb:
+	kfree(vbox_fb);
+err_unref_obj:
+	drm_gem_object_unreference_unlocked(obj);
+	return ERR_PTR(ret);
+}
+
+static const struct drm_mode_config_funcs vbox_mode_funcs = {
+	.fb_create = vbox_user_framebuffer_create,
+};
+
+static int vbox_accel_init(struct vbox_private *vbox)
+{
+	unsigned int i;
+
+	vbox->vbva_info = devm_kcalloc(vbox->dev->dev, vbox->num_crtcs,
+				       sizeof(*vbox->vbva_info), GFP_KERNEL);
+	if (!vbox->vbva_info)
+		return -ENOMEM;
+
+	/* Take a command buffer for each screen from the end of usable VRAM. */
+	vbox->available_vram_size -= vbox->num_crtcs * VBVA_MIN_BUFFER_SIZE;
+
+	vbox->vbva_buffers = pci_iomap_range(vbox->dev->pdev, 0,
+					     vbox->available_vram_size,
+					     vbox->num_crtcs *
+					     VBVA_MIN_BUFFER_SIZE);
+	if (!vbox->vbva_buffers)
+		return -ENOMEM;
+
+	for (i = 0; i < vbox->num_crtcs; ++i)
+		vbva_setup_buffer_context(&vbox->vbva_info[i],
+					  vbox->available_vram_size +
+					  i * VBVA_MIN_BUFFER_SIZE,
+					  VBVA_MIN_BUFFER_SIZE);
+
+	return 0;
+}
+
+static void vbox_accel_fini(struct vbox_private *vbox)
+{
+	vbox_disable_accel(vbox);
+	pci_iounmap(vbox->dev->pdev, vbox->vbva_buffers);
+}
+
+/** Do we support the 4.3 plus mode hint reporting interface? */
+static bool have_hgsmi_mode_hints(struct vbox_private *vbox)
+{
+	u32 have_hints, have_cursor;
+	int ret;
+
+	ret = hgsmi_query_conf(vbox->guest_pool,
+			       VBOX_VBVA_CONF32_MODE_HINT_REPORTING,
+			       &have_hints);
+	if (ret)
+		return false;
+
+	ret = hgsmi_query_conf(vbox->guest_pool,
+			       VBOX_VBVA_CONF32_GUEST_CURSOR_REPORTING,
+			       &have_cursor);
+	if (ret)
+		return false;
+
+	return have_hints == VINF_SUCCESS && have_cursor == VINF_SUCCESS;
+}
+
+static bool vbox_check_supported(u16 id)
+{
+	u16 dispi_id;
+
+	vbox_write_ioport(VBE_DISPI_INDEX_ID, id);
+	dispi_id = inw(VBE_DISPI_IOPORT_DATA);
+
+	return dispi_id == id;
+}
+
+/**
+ * Set up our heaps and data exchange buffers in VRAM before handing the rest
+ * to the memory manager.
+ */
+static int vbox_hw_init(struct vbox_private *vbox)
+{
+	int ret = -ENOMEM;
+
+	vbox->full_vram_size = inl(VBE_DISPI_IOPORT_DATA);
+	vbox->any_pitch = vbox_check_supported(VBE_DISPI_ID_ANYX);
+
+	DRM_INFO("VRAM %08x\n", vbox->full_vram_size);
+
+	/* Map guest-heap at end of vram */
+	vbox->guest_heap =
+	    pci_iomap_range(vbox->dev->pdev, 0, GUEST_HEAP_OFFSET(vbox),
+			    GUEST_HEAP_SIZE);
+	if (!vbox->guest_heap)
+		return -ENOMEM;
+
+	/* Create guest-heap mem-pool use 2^4 = 16 byte chunks */
+	vbox->guest_pool = gen_pool_create(4, -1);
+	if (!vbox->guest_pool)
+		goto err_unmap_guest_heap;
+
+	ret = gen_pool_add_virt(vbox->guest_pool,
+				(unsigned long)vbox->guest_heap,
+				GUEST_HEAP_OFFSET(vbox),
+				GUEST_HEAP_USABLE_SIZE, -1);
+	if (ret)
+		goto err_destroy_guest_pool;
+
+	ret = hgsmi_test_query_conf(vbox->guest_pool);
+	if (ret) {
+		DRM_ERROR("vboxvideo: hgsmi_test_query_conf failed\n");
+		goto err_destroy_guest_pool;
+	}
+
+	/* Reduce available VRAM size to reflect the guest heap. */
+	vbox->available_vram_size = GUEST_HEAP_OFFSET(vbox);
+	/* Linux drm represents monitors as a 32-bit array. */
+	hgsmi_query_conf(vbox->guest_pool, VBOX_VBVA_CONF32_MONITOR_COUNT,
+			 &vbox->num_crtcs);
+	vbox->num_crtcs = clamp_t(u32, vbox->num_crtcs, 1, VBOX_MAX_SCREENS);
+
+	if (!have_hgsmi_mode_hints(vbox)) {
+		ret = -ENOTSUPP;
+		goto err_destroy_guest_pool;
+	}
+
+	vbox->last_mode_hints = devm_kcalloc(vbox->dev->dev, vbox->num_crtcs,
+					     sizeof(struct vbva_modehint),
+					     GFP_KERNEL);
+	if (!vbox->last_mode_hints) {
+		ret = -ENOMEM;
+		goto err_destroy_guest_pool;
+	}
+
+	ret = vbox_accel_init(vbox);
+	if (ret)
+		goto err_destroy_guest_pool;
+
+	return 0;
+
+err_destroy_guest_pool:
+	gen_pool_destroy(vbox->guest_pool);
+err_unmap_guest_heap:
+	pci_iounmap(vbox->dev->pdev, vbox->guest_heap);
+	return ret;
+}
+
+static void vbox_hw_fini(struct vbox_private *vbox)
+{
+	vbox_accel_fini(vbox);
+	gen_pool_destroy(vbox->guest_pool);
+	pci_iounmap(vbox->dev->pdev, vbox->guest_heap);
+}
+
+int vbox_driver_load(struct drm_device *dev, unsigned long flags)
+{
+	struct vbox_private *vbox;
+	int ret = 0;
+
+	if (!vbox_check_supported(VBE_DISPI_ID_HGSMI))
+		return -ENODEV;
+
+	vbox = devm_kzalloc(dev->dev, sizeof(*vbox), GFP_KERNEL);
+	if (!vbox)
+		return -ENOMEM;
+
+	dev->dev_private = vbox;
+	vbox->dev = dev;
+
+	mutex_init(&vbox->hw_mutex);
+
+	ret = vbox_hw_init(vbox);
+	if (ret)
+		return ret;
+
+	ret = vbox_mm_init(vbox);
+	if (ret)
+		goto err_hw_fini;
+
+	drm_mode_config_init(dev);
+
+	dev->mode_config.funcs = (void *)&vbox_mode_funcs;
+	dev->mode_config.min_width = 64;
+	dev->mode_config.min_height = 64;
+	dev->mode_config.preferred_depth = 24;
+	dev->mode_config.max_width = VBE_DISPI_MAX_XRES;
+	dev->mode_config.max_height = VBE_DISPI_MAX_YRES;
+
+	ret = vbox_mode_init(dev);
+	if (ret)
+		goto err_drm_mode_cleanup;
+
+	ret = vbox_irq_init(vbox);
+	if (ret)
+		goto err_mode_fini;
+
+	ret = vbox_fbdev_init(dev);
+	if (ret)
+		goto err_irq_fini;
+
+	return 0;
+
+err_irq_fini:
+	vbox_irq_fini(vbox);
+err_mode_fini:
+	vbox_mode_fini(dev);
+err_drm_mode_cleanup:
+	drm_mode_config_cleanup(dev);
+	vbox_mm_fini(vbox);
+err_hw_fini:
+	vbox_hw_fini(vbox);
+	return ret;
+}
+
+void vbox_driver_unload(struct drm_device *dev)
+{
+	struct vbox_private *vbox = dev->dev_private;
+
+	vbox_fbdev_fini(dev);
+	vbox_irq_fini(vbox);
+	vbox_mode_fini(dev);
+	drm_mode_config_cleanup(dev);
+	vbox_mm_fini(vbox);
+	vbox_hw_fini(vbox);
+}
+
+/**
+ * @note this is described in the DRM framework documentation.  AST does not
+ * have it, but we get an oops on driver unload if it is not present.
+ */
+void vbox_driver_lastclose(struct drm_device *dev)
+{
+	struct vbox_private *vbox = dev->dev_private;
+
+	if (vbox->fbdev)
+		drm_fb_helper_restore_fbdev_mode_unlocked(&vbox->fbdev->helper);
+}
+
+int vbox_gem_create(struct drm_device *dev,
+		    u32 size, bool iskernel, struct drm_gem_object **obj)
+{
+	struct vbox_bo *vboxbo;
+	int ret;
+
+	*obj = NULL;
+
+	size = roundup(size, PAGE_SIZE);
+	if (size == 0)
+		return -EINVAL;
+
+	ret = vbox_bo_create(dev, size, 0, 0, &vboxbo);
+	if (ret) {
+		if (ret != -ERESTARTSYS)
+			DRM_ERROR("failed to allocate GEM object\n");
+		return ret;
+	}
+
+	*obj = &vboxbo->gem;
+
+	return 0;
+}
+
+int vbox_dumb_create(struct drm_file *file,
+		     struct drm_device *dev, struct drm_mode_create_dumb *args)
+{
+	int ret;
+	struct drm_gem_object *gobj;
+	u32 handle;
+
+	args->pitch = args->width * ((args->bpp + 7) / 8);
+	args->size = args->pitch * args->height;
+
+	ret = vbox_gem_create(dev, args->size, false, &gobj);
+	if (ret)
+		return ret;
+
+	ret = drm_gem_handle_create(file, gobj, &handle);
+	drm_gem_object_unreference_unlocked(gobj);
+	if (ret)
+		return ret;
+
+	args->handle = handle;
+
+	return 0;
+}
+
+static void vbox_bo_unref(struct vbox_bo **bo)
+{
+	struct ttm_buffer_object *tbo;
+
+	if ((*bo) == NULL)
+		return;
+
+	tbo = &((*bo)->bo);
+	ttm_bo_unref(&tbo);
+	if (!tbo)
+		*bo = NULL;
+}
+
+void vbox_gem_free_object(struct drm_gem_object *obj)
+{
+	struct vbox_bo *vbox_bo = gem_to_vbox_bo(obj);
+
+	vbox_bo_unref(&vbox_bo);
+}
+
+static inline u64 vbox_bo_mmap_offset(struct vbox_bo *bo)
+{
+	return drm_vma_node_offset_addr(&bo->bo.vma_node);
+}
+
+int
+vbox_dumb_mmap_offset(struct drm_file *file,
+		      struct drm_device *dev,
+		      u32 handle, u64 *offset)
+{
+	struct drm_gem_object *obj;
+	int ret;
+	struct vbox_bo *bo;
+
+	mutex_lock(&dev->struct_mutex);
+	obj = drm_gem_object_lookup(file, handle);
+	if (!obj) {
+		ret = -ENOENT;
+		goto out_unlock;
+	}
+
+	bo = gem_to_vbox_bo(obj);
+	*offset = vbox_bo_mmap_offset(bo);
+
+	drm_gem_object_unreference(obj);
+	ret = 0;
+
+out_unlock:
+	mutex_unlock(&dev->struct_mutex);
+	return ret;
+}
diff --git a/drivers/staging/vboxvideo/vbox_mode.c b/drivers/staging/vboxvideo/vbox_mode.c
new file mode 100644
index 000000000000..f2b85f3256fa
--- /dev/null
+++ b/drivers/staging/vboxvideo/vbox_mode.c
@@ -0,0 +1,877 @@
+/*
+ * Copyright (C) 2013-2017 Oracle Corporation
+ * This file is based on ast_mode.c
+ * Copyright 2012 Red Hat Inc.
+ * Parts based on xf86-video-ast
+ * Copyright (c) 2005 ASPEED Technology Inc.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the
+ * "Software"), to deal in the Software without restriction, including
+ * without limitation the rights to use, copy, modify, merge, publish,
+ * distribute, sub license, and/or sell copies of the Software, and to
+ * permit persons to whom the Software is furnished to do so, subject to
+ * the following conditions:
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDERS, AUTHORS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM,
+ * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
+ * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
+ * USE OR OTHER DEALINGS IN THE SOFTWARE.
+ *
+ * The above copyright notice and this permission notice (including the
+ * next paragraph) shall be included in all copies or substantial portions
+ * of the Software.
+ *
+ */
+/*
+ * Authors: Dave Airlie <airlied@redhat.com>
+ *          Michael Thayer <michael.thayer@oracle.com,
+ *          Hans de Goede <hdegoede@redhat.com>
+ */
+#include <linux/export.h>
+#include <drm/drm_crtc_helper.h>
+#include <drm/drm_plane_helper.h>
+
+#include "vbox_drv.h"
+#include "vboxvideo.h"
+#include "hgsmi_channels.h"
+
+static int vbox_cursor_set2(struct drm_crtc *crtc, struct drm_file *file_priv,
+			    u32 handle, u32 width, u32 height,
+			    s32 hot_x, s32 hot_y);
+static int vbox_cursor_move(struct drm_crtc *crtc, int x, int y);
+
+/**
+ * Set a graphics mode.  Poke any required values into registers, do an HGSMI
+ * mode set and tell the host we support advanced graphics functions.
+ */
+static void vbox_do_modeset(struct drm_crtc *crtc,
+			    const struct drm_display_mode *mode)
+{
+	struct vbox_crtc *vbox_crtc = to_vbox_crtc(crtc);
+	struct vbox_private *vbox;
+	int width, height, bpp, pitch;
+	unsigned int crtc_id;
+	u16 flags;
+	s32 x_offset, y_offset;
+
+	vbox = crtc->dev->dev_private;
+	width = mode->hdisplay ? mode->hdisplay : 640;
+	height = mode->vdisplay ? mode->vdisplay : 480;
+	crtc_id = vbox_crtc->crtc_id;
+	bpp = crtc->enabled ? CRTC_FB(crtc)->format->cpp[0] * 8 : 32;
+	pitch = crtc->enabled ? CRTC_FB(crtc)->pitches[0] : width * bpp / 8;
+	x_offset = vbox->single_framebuffer ? crtc->x : vbox_crtc->x_hint;
+	y_offset = vbox->single_framebuffer ? crtc->y : vbox_crtc->y_hint;
+
+	/*
+	 * This is the old way of setting graphics modes.  It assumed one screen
+	 * and a frame-buffer at the start of video RAM.  On older versions of
+	 * VirtualBox, certain parts of the code still assume that the first
+	 * screen is programmed this way, so try to fake it.
+	 */
+	if (vbox_crtc->crtc_id == 0 && crtc->enabled &&
+	    vbox_crtc->fb_offset / pitch < 0xffff - crtc->y &&
+	    vbox_crtc->fb_offset % (bpp / 8) == 0) {
+		vbox_write_ioport(VBE_DISPI_INDEX_XRES, width);
+		vbox_write_ioport(VBE_DISPI_INDEX_YRES, height);
+		vbox_write_ioport(VBE_DISPI_INDEX_VIRT_WIDTH, pitch * 8 / bpp);
+		vbox_write_ioport(VBE_DISPI_INDEX_BPP,
+				  CRTC_FB(crtc)->format->cpp[0] * 8);
+		vbox_write_ioport(VBE_DISPI_INDEX_ENABLE, VBE_DISPI_ENABLED);
+		vbox_write_ioport(
+			VBE_DISPI_INDEX_X_OFFSET,
+			vbox_crtc->fb_offset % pitch / bpp * 8 + crtc->x);
+		vbox_write_ioport(VBE_DISPI_INDEX_Y_OFFSET,
+				  vbox_crtc->fb_offset / pitch + crtc->y);
+	}
+
+	flags = VBVA_SCREEN_F_ACTIVE;
+	flags |= (crtc->enabled && !vbox_crtc->blanked) ?
+		 0 : VBVA_SCREEN_F_BLANK;
+	flags |= vbox_crtc->disconnected ? VBVA_SCREEN_F_DISABLED : 0;
+	hgsmi_process_display_info(vbox->guest_pool, vbox_crtc->crtc_id,
+				   x_offset, y_offset,
+				   crtc->x * bpp / 8 + crtc->y * pitch,
+				   pitch, width, height,
+				   vbox_crtc->blanked ? 0 : bpp, flags);
+}
+
+static int vbox_set_view(struct drm_crtc *crtc)
+{
+	struct vbox_crtc *vbox_crtc = to_vbox_crtc(crtc);
+	struct vbox_private *vbox = crtc->dev->dev_private;
+	struct vbva_infoview *p;
+
+	/*
+	 * Tell the host about the view.  This design originally targeted the
+	 * Windows XP driver architecture and assumed that each screen would
+	 * have a dedicated frame buffer with the command buffer following it,
+	 * the whole being a "view".  The host works out which screen a command
+	 * buffer belongs to by checking whether it is in the first view, then
+	 * whether it is in the second and so on.  The first match wins.  We
+	 * cheat around this by making the first view be the managed memory
+	 * plus the first command buffer, the second the same plus the second
+	 * buffer and so on.
+	 */
+	p = hgsmi_buffer_alloc(vbox->guest_pool, sizeof(*p),
+			       HGSMI_CH_VBVA, VBVA_INFO_VIEW);
+	if (!p)
+		return -ENOMEM;
+
+	p->view_index = vbox_crtc->crtc_id;
+	p->view_offset = vbox_crtc->fb_offset;
+	p->view_size = vbox->available_vram_size - vbox_crtc->fb_offset +
+		       vbox_crtc->crtc_id * VBVA_MIN_BUFFER_SIZE;
+	p->max_screen_size = vbox->available_vram_size - vbox_crtc->fb_offset;
+
+	hgsmi_buffer_submit(vbox->guest_pool, p);
+	hgsmi_buffer_free(vbox->guest_pool, p);
+
+	return 0;
+}
+
+static void vbox_crtc_load_lut(struct drm_crtc *crtc)
+{
+}
+
+static void vbox_crtc_dpms(struct drm_crtc *crtc, int mode)
+{
+	struct vbox_crtc *vbox_crtc = to_vbox_crtc(crtc);
+	struct vbox_private *vbox = crtc->dev->dev_private;
+
+	switch (mode) {
+	case DRM_MODE_DPMS_ON:
+		vbox_crtc->blanked = false;
+		break;
+	case DRM_MODE_DPMS_STANDBY:
+	case DRM_MODE_DPMS_SUSPEND:
+	case DRM_MODE_DPMS_OFF:
+		vbox_crtc->blanked = true;
+		break;
+	}
+
+	mutex_lock(&vbox->hw_mutex);
+	vbox_do_modeset(crtc, &crtc->hwmode);
+	mutex_unlock(&vbox->hw_mutex);
+}
+
+static bool vbox_crtc_mode_fixup(struct drm_crtc *crtc,
+				 const struct drm_display_mode *mode,
+				 struct drm_display_mode *adjusted_mode)
+{
+	return true;
+}
+
+/*
+ * Try to map the layout of virtual screens to the range of the input device.
+ * Return true if we need to re-set the crtc modes due to screen offset
+ * changes.
+ */
+static bool vbox_set_up_input_mapping(struct vbox_private *vbox)
+{
+	struct drm_crtc *crtci;
+	struct drm_connector *connectori;
+	struct drm_framebuffer *fb1 = NULL;
+	bool single_framebuffer = true;
+	bool old_single_framebuffer = vbox->single_framebuffer;
+	u16 width = 0, height = 0;
+
+	/*
+	 * Are we using an X.Org-style single large frame-buffer for all crtcs?
+	 * If so then screen layout can be deduced from the crtc offsets.
+	 * Same fall-back if this is the fbdev frame-buffer.
+	 */
+	list_for_each_entry(crtci, &vbox->dev->mode_config.crtc_list, head) {
+		if (!fb1) {
+			fb1 = CRTC_FB(crtci);
+			if (to_vbox_framebuffer(fb1) == &vbox->fbdev->afb)
+				break;
+		} else if (CRTC_FB(crtci) && fb1 != CRTC_FB(crtci)) {
+			single_framebuffer = false;
+		}
+	}
+	if (single_framebuffer) {
+		list_for_each_entry(crtci, &vbox->dev->mode_config.crtc_list,
+				    head) {
+			if (to_vbox_crtc(crtci)->crtc_id != 0)
+				continue;
+
+			vbox->single_framebuffer = true;
+			vbox->input_mapping_width = CRTC_FB(crtci)->width;
+			vbox->input_mapping_height = CRTC_FB(crtci)->height;
+			return old_single_framebuffer !=
+			       vbox->single_framebuffer;
+		}
+	}
+	/* Otherwise calculate the total span of all screens. */
+	list_for_each_entry(connectori, &vbox->dev->mode_config.connector_list,
+			    head) {
+		struct vbox_connector *vbox_connector =
+		    to_vbox_connector(connectori);
+		struct vbox_crtc *vbox_crtc = vbox_connector->vbox_crtc;
+
+		width = max_t(u16, width, vbox_crtc->x_hint +
+					  vbox_connector->mode_hint.width);
+		height = max_t(u16, height, vbox_crtc->y_hint +
+					    vbox_connector->mode_hint.height);
+	}
+
+	vbox->single_framebuffer = false;
+	vbox->input_mapping_width = width;
+	vbox->input_mapping_height = height;
+
+	return old_single_framebuffer != vbox->single_framebuffer;
+}
+
+static int vbox_crtc_do_set_base(struct drm_crtc *crtc,
+				 struct drm_framebuffer *old_fb, int x, int y)
+{
+	struct vbox_private *vbox = crtc->dev->dev_private;
+	struct vbox_crtc *vbox_crtc = to_vbox_crtc(crtc);
+	struct drm_gem_object *obj;
+	struct vbox_framebuffer *vbox_fb;
+	struct vbox_bo *bo;
+	int ret;
+	u64 gpu_addr;
+
+	/* Unpin the previous fb. */
+	if (old_fb) {
+		vbox_fb = to_vbox_framebuffer(old_fb);
+		obj = vbox_fb->obj;
+		bo = gem_to_vbox_bo(obj);
+		ret = vbox_bo_reserve(bo, false);
+		if (ret)
+			return ret;
+
+		vbox_bo_unpin(bo);
+		vbox_bo_unreserve(bo);
+	}
+
+	vbox_fb = to_vbox_framebuffer(CRTC_FB(crtc));
+	obj = vbox_fb->obj;
+	bo = gem_to_vbox_bo(obj);
+
+	ret = vbox_bo_reserve(bo, false);
+	if (ret)
+		return ret;
+
+	ret = vbox_bo_pin(bo, TTM_PL_FLAG_VRAM, &gpu_addr);
+	if (ret) {
+		vbox_bo_unreserve(bo);
+		return ret;
+	}
+
+	if (&vbox->fbdev->afb == vbox_fb)
+		vbox_fbdev_set_base(vbox, gpu_addr);
+	vbox_bo_unreserve(bo);
+
+	/* vbox_set_start_address_crt1(crtc, (u32)gpu_addr); */
+	vbox_crtc->fb_offset = gpu_addr;
+	if (vbox_set_up_input_mapping(vbox)) {
+		struct drm_crtc *crtci;
+
+		list_for_each_entry(crtci, &vbox->dev->mode_config.crtc_list,
+				    head) {
+			vbox_set_view(crtc);
+			vbox_do_modeset(crtci, &crtci->mode);
+		}
+	}
+
+	return 0;
+}
+
+static int vbox_crtc_mode_set_base(struct drm_crtc *crtc, int x, int y,
+				   struct drm_framebuffer *old_fb)
+{
+	return vbox_crtc_do_set_base(crtc, old_fb, x, y);
+}
+
+static int vbox_crtc_mode_set(struct drm_crtc *crtc,
+			      struct drm_display_mode *mode,
+			      struct drm_display_mode *adjusted_mode,
+			      int x, int y, struct drm_framebuffer *old_fb)
+{
+	struct vbox_private *vbox = crtc->dev->dev_private;
+	int ret;
+
+	vbox_crtc_mode_set_base(crtc, x, y, old_fb);
+
+	mutex_lock(&vbox->hw_mutex);
+	ret = vbox_set_view(crtc);
+	if (!ret)
+		vbox_do_modeset(crtc, mode);
+	hgsmi_update_input_mapping(vbox->guest_pool, 0, 0,
+				   vbox->input_mapping_width,
+				   vbox->input_mapping_height);
+	mutex_unlock(&vbox->hw_mutex);
+
+	return ret;
+}
+
+static void vbox_crtc_disable(struct drm_crtc *crtc)
+{
+}
+
+static void vbox_crtc_prepare(struct drm_crtc *crtc)
+{
+}
+
+static void vbox_crtc_commit(struct drm_crtc *crtc)
+{
+}
+
+static const struct drm_crtc_helper_funcs vbox_crtc_helper_funcs = {
+	.dpms = vbox_crtc_dpms,
+	.mode_fixup = vbox_crtc_mode_fixup,
+	.mode_set = vbox_crtc_mode_set,
+	/* .mode_set_base = vbox_crtc_mode_set_base, */
+	.disable = vbox_crtc_disable,
+	.load_lut = vbox_crtc_load_lut,
+	.prepare = vbox_crtc_prepare,
+	.commit = vbox_crtc_commit,
+};
+
+static void vbox_crtc_reset(struct drm_crtc *crtc)
+{
+}
+
+static void vbox_crtc_destroy(struct drm_crtc *crtc)
+{
+	drm_crtc_cleanup(crtc);
+	kfree(crtc);
+}
+
+static const struct drm_crtc_funcs vbox_crtc_funcs = {
+	.cursor_move = vbox_cursor_move,
+	.cursor_set2 = vbox_cursor_set2,
+	.reset = vbox_crtc_reset,
+	.set_config = drm_crtc_helper_set_config,
+	/* .gamma_set = vbox_crtc_gamma_set, */
+	.destroy = vbox_crtc_destroy,
+};
+
+static struct vbox_crtc *vbox_crtc_init(struct drm_device *dev, unsigned int i)
+{
+	struct vbox_crtc *vbox_crtc;
+
+	vbox_crtc = kzalloc(sizeof(*vbox_crtc), GFP_KERNEL);
+	if (!vbox_crtc)
+		return NULL;
+
+	vbox_crtc->crtc_id = i;
+
+	drm_crtc_init(dev, &vbox_crtc->base, &vbox_crtc_funcs);
+	drm_mode_crtc_set_gamma_size(&vbox_crtc->base, 256);
+	drm_crtc_helper_add(&vbox_crtc->base, &vbox_crtc_helper_funcs);
+
+	return vbox_crtc;
+}
+
+static void vbox_encoder_destroy(struct drm_encoder *encoder)
+{
+	drm_encoder_cleanup(encoder);
+	kfree(encoder);
+}
+
+static struct drm_encoder *vbox_best_single_encoder(struct drm_connector
+						    *connector)
+{
+	int enc_id = connector->encoder_ids[0];
+
+	/* pick the encoder ids */
+	if (enc_id)
+		return drm_encoder_find(connector->dev, enc_id);
+
+	return NULL;
+}
+
+static const struct drm_encoder_funcs vbox_enc_funcs = {
+	.destroy = vbox_encoder_destroy,
+};
+
+static void vbox_encoder_dpms(struct drm_encoder *encoder, int mode)
+{
+}
+
+static bool vbox_mode_fixup(struct drm_encoder *encoder,
+			    const struct drm_display_mode *mode,
+			    struct drm_display_mode *adjusted_mode)
+{
+	return true;
+}
+
+static void vbox_encoder_mode_set(struct drm_encoder *encoder,
+				  struct drm_display_mode *mode,
+				  struct drm_display_mode *adjusted_mode)
+{
+}
+
+static void vbox_encoder_prepare(struct drm_encoder *encoder)
+{
+}
+
+static void vbox_encoder_commit(struct drm_encoder *encoder)
+{
+}
+
+static const struct drm_encoder_helper_funcs vbox_enc_helper_funcs = {
+	.dpms = vbox_encoder_dpms,
+	.mode_fixup = vbox_mode_fixup,
+	.prepare = vbox_encoder_prepare,
+	.commit = vbox_encoder_commit,
+	.mode_set = vbox_encoder_mode_set,
+};
+
+static struct drm_encoder *vbox_encoder_init(struct drm_device *dev,
+					     unsigned int i)
+{
+	struct vbox_encoder *vbox_encoder;
+
+	vbox_encoder = kzalloc(sizeof(*vbox_encoder), GFP_KERNEL);
+	if (!vbox_encoder)
+		return NULL;
+
+	drm_encoder_init(dev, &vbox_encoder->base, &vbox_enc_funcs,
+			 DRM_MODE_ENCODER_DAC, NULL);
+	drm_encoder_helper_add(&vbox_encoder->base, &vbox_enc_helper_funcs);
+
+	vbox_encoder->base.possible_crtcs = 1 << i;
+	return &vbox_encoder->base;
+}
+
+/**
+ * Generate EDID data with a mode-unique serial number for the virtual
+ *  monitor to try to persuade Unity that different modes correspond to
+ *  different monitors and it should not try to force the same resolution on
+ *  them.
+ */
+static void vbox_set_edid(struct drm_connector *connector, int width,
+			  int height)
+{
+	enum { EDID_SIZE = 128 };
+	unsigned char edid[EDID_SIZE] = {
+		0x00, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0x00,	/* header */
+		0x58, 0x58,	/* manufacturer (VBX) */
+		0x00, 0x00,	/* product code */
+		0x00, 0x00, 0x00, 0x00,	/* serial number goes here */
+		0x01,		/* week of manufacture */
+		0x00,		/* year of manufacture */
+		0x01, 0x03,	/* EDID version */
+		0x80,		/* capabilities - digital */
+		0x00,		/* horiz. res in cm, zero for projectors */
+		0x00,		/* vert. res in cm */
+		0x78,		/* display gamma (120 == 2.2). */
+		0xEE,		/* features (standby, suspend, off, RGB, std */
+				/* colour space, preferred timing mode) */
+		0xEE, 0x91, 0xA3, 0x54, 0x4C, 0x99, 0x26, 0x0F, 0x50, 0x54,
+		/* chromaticity for standard colour space. */
+		0x00, 0x00, 0x00,	/* no default timings */
+		0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01,
+		    0x01, 0x01,
+		0x01, 0x01, 0x01, 0x01,	/* no standard timings */
+		0x00, 0x00, 0x00, 0x06, 0x00, 0x00, 0x06, 0x00, 0x02, 0x02,
+		    0x02, 0x02,
+		/* descriptor block 1 goes below */
+		0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+		/* descriptor block 2, monitor ranges */
+		0x00, 0x00, 0x00, 0xFD, 0x00,
+		0x00, 0xC8, 0x00, 0xC8, 0x64, 0x00, 0x0A, 0x20, 0x20, 0x20,
+		    0x20, 0x20,
+		/* 0-200Hz vertical, 0-200KHz horizontal, 1000MHz pixel clock */
+		0x20,
+		/* descriptor block 3, monitor name */
+		0x00, 0x00, 0x00, 0xFC, 0x00,
+		'V', 'B', 'O', 'X', ' ', 'm', 'o', 'n', 'i', 't', 'o', 'r',
+		'\n',
+		/* descriptor block 4: dummy data */
+		0x00, 0x00, 0x00, 0x10, 0x00,
+		0x0A, 0x20, 0x20, 0x20, 0x20, 0x20,
+		0x20, 0x20, 0x20, 0x20, 0x20, 0x20,
+		0x20,
+		0x00,		/* number of extensions */
+		0x00		/* checksum goes here */
+	};
+	int clock = (width + 6) * (height + 6) * 60 / 10000;
+	unsigned int i, sum = 0;
+
+	edid[12] = width & 0xff;
+	edid[13] = width >> 8;
+	edid[14] = height & 0xff;
+	edid[15] = height >> 8;
+	edid[54] = clock & 0xff;
+	edid[55] = clock >> 8;
+	edid[56] = width & 0xff;
+	edid[58] = (width >> 4) & 0xf0;
+	edid[59] = height & 0xff;
+	edid[61] = (height >> 4) & 0xf0;
+	for (i = 0; i < EDID_SIZE - 1; ++i)
+		sum += edid[i];
+	edid[EDID_SIZE - 1] = (0x100 - (sum & 0xFF)) & 0xFF;
+	drm_mode_connector_update_edid_property(connector, (struct edid *)edid);
+}
+
+static int vbox_get_modes(struct drm_connector *connector)
+{
+	struct vbox_connector *vbox_connector = NULL;
+	struct drm_display_mode *mode = NULL;
+	struct vbox_private *vbox = NULL;
+	unsigned int num_modes = 0;
+	int preferred_width, preferred_height;
+
+	vbox_connector = to_vbox_connector(connector);
+	vbox = connector->dev->dev_private;
+	/*
+	 * Heuristic: we do not want to tell the host that we support dynamic
+	 * resizing unless we feel confident that the user space client using
+	 * the video driver can handle hot-plug events.  So the first time modes
+	 * are queried after a "master" switch we tell the host that we do not,
+	 * and immediately after we send the client a hot-plug notification as
+	 * a test to see if they will respond and query again.
+	 * That is also the reason why capabilities are reported to the host at
+	 * this place in the code rather than elsewhere.
+	 * We need to report the flags location before reporting the IRQ
+	 * capability.
+	 */
+	hgsmi_report_flags_location(vbox->guest_pool, GUEST_HEAP_OFFSET(vbox) +
+				    HOST_FLAGS_OFFSET);
+	if (vbox_connector->vbox_crtc->crtc_id == 0)
+		vbox_report_caps(vbox);
+	if (!vbox->initial_mode_queried) {
+		if (vbox_connector->vbox_crtc->crtc_id == 0) {
+			vbox->initial_mode_queried = true;
+			vbox_report_hotplug(vbox);
+		}
+		return drm_add_modes_noedid(connector, 800, 600);
+	}
+	num_modes = drm_add_modes_noedid(connector, 2560, 1600);
+	preferred_width = vbox_connector->mode_hint.width ?
+			  vbox_connector->mode_hint.width : 1024;
+	preferred_height = vbox_connector->mode_hint.height ?
+			   vbox_connector->mode_hint.height : 768;
+	mode = drm_cvt_mode(connector->dev, preferred_width, preferred_height,
+			    60, false, false, false);
+	if (mode) {
+		mode->type |= DRM_MODE_TYPE_PREFERRED;
+		drm_mode_probed_add(connector, mode);
+		++num_modes;
+	}
+	vbox_set_edid(connector, preferred_width, preferred_height);
+	drm_object_property_set_value(
+		&connector->base, vbox->dev->mode_config.suggested_x_property,
+		vbox_connector->vbox_crtc->x_hint);
+	drm_object_property_set_value(
+		&connector->base, vbox->dev->mode_config.suggested_y_property,
+		vbox_connector->vbox_crtc->y_hint);
+
+	return num_modes;
+}
+
+static int vbox_mode_valid(struct drm_connector *connector,
+			   struct drm_display_mode *mode)
+{
+	return MODE_OK;
+}
+
+static void vbox_connector_destroy(struct drm_connector *connector)
+{
+	struct vbox_connector *vbox_connector;
+
+	vbox_connector = to_vbox_connector(connector);
+	drm_connector_unregister(connector);
+	drm_connector_cleanup(connector);
+	kfree(connector);
+}
+
+static enum drm_connector_status
+vbox_connector_detect(struct drm_connector *connector, bool force)
+{
+	struct vbox_connector *vbox_connector;
+
+	vbox_connector = to_vbox_connector(connector);
+
+	return vbox_connector->mode_hint.disconnected ?
+	    connector_status_disconnected : connector_status_connected;
+}
+
+static int vbox_fill_modes(struct drm_connector *connector, u32 max_x,
+			   u32 max_y)
+{
+	struct vbox_connector *vbox_connector;
+	struct drm_device *dev;
+	struct drm_display_mode *mode, *iterator;
+
+	vbox_connector = to_vbox_connector(connector);
+	dev = vbox_connector->base.dev;
+	list_for_each_entry_safe(mode, iterator, &connector->modes, head) {
+		list_del(&mode->head);
+		drm_mode_destroy(dev, mode);
+	}
+
+	return drm_helper_probe_single_connector_modes(connector, max_x, max_y);
+}
+
+static const struct drm_connector_helper_funcs vbox_connector_helper_funcs = {
+	.mode_valid = vbox_mode_valid,
+	.get_modes = vbox_get_modes,
+	.best_encoder = vbox_best_single_encoder,
+};
+
+static const struct drm_connector_funcs vbox_connector_funcs = {
+	.dpms = drm_helper_connector_dpms,
+	.detect = vbox_connector_detect,
+	.fill_modes = vbox_fill_modes,
+	.destroy = vbox_connector_destroy,
+};
+
+static int vbox_connector_init(struct drm_device *dev,
+			       struct vbox_crtc *vbox_crtc,
+			       struct drm_encoder *encoder)
+{
+	struct vbox_connector *vbox_connector;
+	struct drm_connector *connector;
+
+	vbox_connector = kzalloc(sizeof(*vbox_connector), GFP_KERNEL);
+	if (!vbox_connector)
+		return -ENOMEM;
+
+	connector = &vbox_connector->base;
+	vbox_connector->vbox_crtc = vbox_crtc;
+
+	drm_connector_init(dev, connector, &vbox_connector_funcs,
+			   DRM_MODE_CONNECTOR_VGA);
+	drm_connector_helper_add(connector, &vbox_connector_helper_funcs);
+
+	connector->interlace_allowed = 0;
+	connector->doublescan_allowed = 0;
+
+	drm_mode_create_suggested_offset_properties(dev);
+	drm_object_attach_property(&connector->base,
+				   dev->mode_config.suggested_x_property, -1);
+	drm_object_attach_property(&connector->base,
+				   dev->mode_config.suggested_y_property, -1);
+	drm_connector_register(connector);
+
+	drm_mode_connector_attach_encoder(connector, encoder);
+
+	return 0;
+}
+
+int vbox_mode_init(struct drm_device *dev)
+{
+	struct vbox_private *vbox = dev->dev_private;
+	struct drm_encoder *encoder;
+	struct vbox_crtc *vbox_crtc;
+	unsigned int i;
+	int ret;
+
+	/* vbox_cursor_init(dev); */
+	for (i = 0; i < vbox->num_crtcs; ++i) {
+		vbox_crtc = vbox_crtc_init(dev, i);
+		if (!vbox_crtc)
+			return -ENOMEM;
+		encoder = vbox_encoder_init(dev, i);
+		if (!encoder)
+			return -ENOMEM;
+		ret = vbox_connector_init(dev, vbox_crtc, encoder);
+		if (ret)
+			return ret;
+	}
+
+	return 0;
+}
+
+void vbox_mode_fini(struct drm_device *dev)
+{
+	/* vbox_cursor_fini(dev); */
+}
+
+/**
+ * Copy the ARGB image and generate the mask, which is needed in case the host
+ * does not support ARGB cursors.  The mask is a 1BPP bitmap with the bit set
+ * if the corresponding alpha value in the ARGB image is greater than 0xF0.
+ */
+static void copy_cursor_image(u8 *src, u8 *dst, u32 width, u32 height,
+			      size_t mask_size)
+{
+	size_t line_size = (width + 7) / 8;
+	u32 i, j;
+
+	memcpy(dst + mask_size, src, width * height * 4);
+	for (i = 0; i < height; ++i)
+		for (j = 0; j < width; ++j)
+			if (((u32 *)src)[i * width + j] > 0xf0000000)
+				dst[i * line_size + j / 8] |= (0x80 >> (j % 8));
+}
+
+static int vbox_cursor_set2(struct drm_crtc *crtc, struct drm_file *file_priv,
+			    u32 handle, u32 width, u32 height,
+			    s32 hot_x, s32 hot_y)
+{
+	struct vbox_private *vbox = crtc->dev->dev_private;
+	struct vbox_crtc *vbox_crtc = to_vbox_crtc(crtc);
+	struct ttm_bo_kmap_obj uobj_map;
+	size_t data_size, mask_size;
+	struct drm_gem_object *obj;
+	u32 flags, caps = 0;
+	struct vbox_bo *bo;
+	bool src_isiomem;
+	u8 *dst = NULL;
+	u8 *src;
+	int ret;
+
+	/*
+	 * Re-set this regularly as in 5.0.20 and earlier the information was
+	 * lost on save and restore.
+	 */
+	hgsmi_update_input_mapping(vbox->guest_pool, 0, 0,
+				   vbox->input_mapping_width,
+				   vbox->input_mapping_height);
+	if (!handle) {
+		bool cursor_enabled = false;
+		struct drm_crtc *crtci;
+
+		/* Hide cursor. */
+		vbox_crtc->cursor_enabled = false;
+		list_for_each_entry(crtci, &vbox->dev->mode_config.crtc_list,
+				    head) {
+			if (to_vbox_crtc(crtci)->cursor_enabled)
+				cursor_enabled = true;
+		}
+
+		if (!cursor_enabled)
+			hgsmi_update_pointer_shape(vbox->guest_pool, 0, 0, 0,
+						   0, 0, NULL, 0);
+		return 0;
+	}
+
+	vbox_crtc->cursor_enabled = true;
+
+	if (width > VBOX_MAX_CURSOR_WIDTH || height > VBOX_MAX_CURSOR_HEIGHT ||
+	    width == 0 || height == 0)
+		return -EINVAL;
+
+	ret = hgsmi_query_conf(vbox->guest_pool,
+			       VBOX_VBVA_CONF32_CURSOR_CAPABILITIES, &caps);
+	if (ret)
+		return ret;
+
+	if (!(caps & VBOX_VBVA_CURSOR_CAPABILITY_HARDWARE)) {
+		/*
+		 * -EINVAL means cursor_set2() not supported, -EAGAIN means
+		 * retry at once.
+		 */
+		return -EBUSY;
+	}
+
+	obj = drm_gem_object_lookup(file_priv, handle);
+	if (!obj) {
+		DRM_ERROR("Cannot find cursor object %x for crtc\n", handle);
+		return -ENOENT;
+	}
+
+	bo = gem_to_vbox_bo(obj);
+	ret = vbox_bo_reserve(bo, false);
+	if (ret)
+		goto out_unref_obj;
+
+	/*
+	 * The mask must be calculated based on the alpha
+	 * channel, one bit per ARGB word, and must be 32-bit
+	 * padded.
+	 */
+	mask_size = ((width + 7) / 8 * height + 3) & ~3;
+	data_size = width * height * 4 + mask_size;
+	vbox->cursor_hot_x = min_t(u32, max(hot_x, 0), width);
+	vbox->cursor_hot_y = min_t(u32, max(hot_y, 0), height);
+	vbox->cursor_width = width;
+	vbox->cursor_height = height;
+	vbox->cursor_data_size = data_size;
+	dst = vbox->cursor_data;
+
+	ret = ttm_bo_kmap(&bo->bo, 0, bo->bo.num_pages, &uobj_map);
+	if (ret) {
+		vbox->cursor_data_size = 0;
+		goto out_unreserve_bo;
+	}
+
+	src = ttm_kmap_obj_virtual(&uobj_map, &src_isiomem);
+	if (src_isiomem) {
+		DRM_ERROR("src cursor bo not in main memory\n");
+		ret = -EIO;
+		goto out_unmap_bo;
+	}
+
+	copy_cursor_image(src, dst, width, height, mask_size);
+
+	flags = VBOX_MOUSE_POINTER_VISIBLE | VBOX_MOUSE_POINTER_SHAPE |
+		VBOX_MOUSE_POINTER_ALPHA;
+	ret = hgsmi_update_pointer_shape(vbox->guest_pool, flags,
+					 vbox->cursor_hot_x, vbox->cursor_hot_y,
+					 width, height, dst, data_size);
+out_unmap_bo:
+	ttm_bo_kunmap(&uobj_map);
+out_unreserve_bo:
+	vbox_bo_unreserve(bo);
+out_unref_obj:
+	drm_gem_object_unreference_unlocked(obj);
+
+	return ret;
+}
+
+static int vbox_cursor_move(struct drm_crtc *crtc, int x, int y)
+{
+	struct vbox_private *vbox = crtc->dev->dev_private;
+	u32 flags = VBOX_MOUSE_POINTER_VISIBLE |
+	    VBOX_MOUSE_POINTER_SHAPE | VBOX_MOUSE_POINTER_ALPHA;
+	s32 crtc_x =
+	    vbox->single_framebuffer ? crtc->x : to_vbox_crtc(crtc)->x_hint;
+	s32 crtc_y =
+	    vbox->single_framebuffer ? crtc->y : to_vbox_crtc(crtc)->y_hint;
+	u32 host_x, host_y;
+	u32 hot_x = 0;
+	u32 hot_y = 0;
+	int ret;
+
+	/*
+	 * We compare these to unsigned later and don't
+	 * need to handle negative.
+	 */
+	if (x + crtc_x < 0 || y + crtc_y < 0 || vbox->cursor_data_size == 0)
+		return 0;
+
+	ret = hgsmi_cursor_position(vbox->guest_pool, true, x + crtc_x,
+				    y + crtc_y, &host_x, &host_y);
+
+	/*
+	 * The only reason we have vbox_cursor_move() is that some older clients
+	 * might use DRM_IOCTL_MODE_CURSOR instead of DRM_IOCTL_MODE_CURSOR2 and
+	 * use DRM_MODE_CURSOR_MOVE to set the hot-spot.
+	 *
+	 * However VirtualBox 5.0.20 and earlier has a bug causing it to return
+	 * 0,0 as host cursor location after a save and restore.
+	 *
+	 * To work around this we ignore a 0, 0 return, since missing the odd
+	 * time when it legitimately happens is not going to hurt much.
+	 */
+	if (ret || (host_x == 0 && host_y == 0))
+		return ret;
+
+	if (x + crtc_x < host_x)
+		hot_x = min(host_x - x - crtc_x, vbox->cursor_width);
+	if (y + crtc_y < host_y)
+		hot_y = min(host_y - y - crtc_y, vbox->cursor_height);
+
+	if (hot_x == vbox->cursor_hot_x && hot_y == vbox->cursor_hot_y)
+		return 0;
+
+	vbox->cursor_hot_x = hot_x;
+	vbox->cursor_hot_y = hot_y;
+
+	return hgsmi_update_pointer_shape(vbox->guest_pool, flags,
+			hot_x, hot_y, vbox->cursor_width, vbox->cursor_height,
+			vbox->cursor_data, vbox->cursor_data_size);
+}
diff --git a/drivers/staging/vboxvideo/vbox_prime.c b/drivers/staging/vboxvideo/vbox_prime.c
new file mode 100644
index 000000000000..b7453e427a1d
--- /dev/null
+++ b/drivers/staging/vboxvideo/vbox_prime.c
@@ -0,0 +1,74 @@
+/*
+ * Copyright (C) 2017 Oracle Corporation
+ * Copyright 2017 Canonical
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ *
+ * Authors: Andreas Pokorny
+ */
+
+#include "vbox_drv.h"
+
+/*
+ * Based on qxl_prime.c:
+ * Empty Implementations as there should not be any other driver for a virtual
+ * device that might share buffers with vboxvideo
+ */
+
+int vbox_gem_prime_pin(struct drm_gem_object *obj)
+{
+	WARN_ONCE(1, "not implemented");
+	return -ENOSYS;
+}
+
+void vbox_gem_prime_unpin(struct drm_gem_object *obj)
+{
+	WARN_ONCE(1, "not implemented");
+}
+
+struct sg_table *vbox_gem_prime_get_sg_table(struct drm_gem_object *obj)
+{
+	WARN_ONCE(1, "not implemented");
+	return ERR_PTR(-ENOSYS);
+}
+
+struct drm_gem_object *vbox_gem_prime_import_sg_table(
+	struct drm_device *dev, struct dma_buf_attachment *attach,
+	struct sg_table *table)
+{
+	WARN_ONCE(1, "not implemented");
+	return ERR_PTR(-ENOSYS);
+}
+
+void *vbox_gem_prime_vmap(struct drm_gem_object *obj)
+{
+	WARN_ONCE(1, "not implemented");
+	return ERR_PTR(-ENOSYS);
+}
+
+void vbox_gem_prime_vunmap(struct drm_gem_object *obj, void *vaddr)
+{
+	WARN_ONCE(1, "not implemented");
+}
+
+int vbox_gem_prime_mmap(struct drm_gem_object *obj, struct vm_area_struct *area)
+{
+	WARN_ONCE(1, "not implemented");
+	return -ENOSYS;
+}
diff --git a/drivers/staging/vboxvideo/vbox_ttm.c b/drivers/staging/vboxvideo/vbox_ttm.c
new file mode 100644
index 000000000000..34a905d40735
--- /dev/null
+++ b/drivers/staging/vboxvideo/vbox_ttm.c
@@ -0,0 +1,472 @@
+/*
+ * Copyright (C) 2013-2017 Oracle Corporation
+ * This file is based on ast_ttm.c
+ * Copyright 2012 Red Hat Inc.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the
+ * "Software"), to deal in the Software without restriction, including
+ * without limitation the rights to use, copy, modify, merge, publish,
+ * distribute, sub license, and/or sell copies of the Software, and to
+ * permit persons to whom the Software is furnished to do so, subject to
+ * the following conditions:
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDERS, AUTHORS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM,
+ * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
+ * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
+ * USE OR OTHER DEALINGS IN THE SOFTWARE.
+ *
+ * The above copyright notice and this permission notice (including the
+ * next paragraph) shall be included in all copies or substantial portions
+ * of the Software.
+ *
+ *
+ * Authors: Dave Airlie <airlied@redhat.com>
+ *          Michael Thayer <michael.thayer@oracle.com>
+ */
+#include "vbox_drv.h"
+#include <ttm/ttm_page_alloc.h>
+
+static inline struct vbox_private *vbox_bdev(struct ttm_bo_device *bd)
+{
+	return container_of(bd, struct vbox_private, ttm.bdev);
+}
+
+static int vbox_ttm_mem_global_init(struct drm_global_reference *ref)
+{
+	return ttm_mem_global_init(ref->object);
+}
+
+static void vbox_ttm_mem_global_release(struct drm_global_reference *ref)
+{
+	ttm_mem_global_release(ref->object);
+}
+
+/**
+ * Adds the vbox memory manager object/structures to the global memory manager.
+ */
+static int vbox_ttm_global_init(struct vbox_private *vbox)
+{
+	struct drm_global_reference *global_ref;
+	int ret;
+
+	global_ref = &vbox->ttm.mem_global_ref;
+	global_ref->global_type = DRM_GLOBAL_TTM_MEM;
+	global_ref->size = sizeof(struct ttm_mem_global);
+	global_ref->init = &vbox_ttm_mem_global_init;
+	global_ref->release = &vbox_ttm_mem_global_release;
+	ret = drm_global_item_ref(global_ref);
+	if (ret) {
+		DRM_ERROR("Failed setting up TTM memory subsystem.\n");
+		return ret;
+	}
+
+	vbox->ttm.bo_global_ref.mem_glob = vbox->ttm.mem_global_ref.object;
+	global_ref = &vbox->ttm.bo_global_ref.ref;
+	global_ref->global_type = DRM_GLOBAL_TTM_BO;
+	global_ref->size = sizeof(struct ttm_bo_global);
+	global_ref->init = &ttm_bo_global_init;
+	global_ref->release = &ttm_bo_global_release;
+
+	ret = drm_global_item_ref(global_ref);
+	if (ret) {
+		DRM_ERROR("Failed setting up TTM BO subsystem.\n");
+		drm_global_item_unref(&vbox->ttm.mem_global_ref);
+		return ret;
+	}
+
+	return 0;
+}
+
+/**
+ * Removes the vbox memory manager object from the global memory manager.
+ */
+static void vbox_ttm_global_release(struct vbox_private *vbox)
+{
+	drm_global_item_unref(&vbox->ttm.bo_global_ref.ref);
+	drm_global_item_unref(&vbox->ttm.mem_global_ref);
+}
+
+static void vbox_bo_ttm_destroy(struct ttm_buffer_object *tbo)
+{
+	struct vbox_bo *bo;
+
+	bo = container_of(tbo, struct vbox_bo, bo);
+
+	drm_gem_object_release(&bo->gem);
+	kfree(bo);
+}
+
+static bool vbox_ttm_bo_is_vbox_bo(struct ttm_buffer_object *bo)
+{
+	if (bo->destroy == &vbox_bo_ttm_destroy)
+		return true;
+
+	return false;
+}
+
+static int
+vbox_bo_init_mem_type(struct ttm_bo_device *bdev, u32 type,
+		      struct ttm_mem_type_manager *man)
+{
+	switch (type) {
+	case TTM_PL_SYSTEM:
+		man->flags = TTM_MEMTYPE_FLAG_MAPPABLE;
+		man->available_caching = TTM_PL_MASK_CACHING;
+		man->default_caching = TTM_PL_FLAG_CACHED;
+		break;
+	case TTM_PL_VRAM:
+		man->func = &ttm_bo_manager_func;
+		man->flags = TTM_MEMTYPE_FLAG_FIXED | TTM_MEMTYPE_FLAG_MAPPABLE;
+		man->available_caching = TTM_PL_FLAG_UNCACHED | TTM_PL_FLAG_WC;
+		man->default_caching = TTM_PL_FLAG_WC;
+		break;
+	default:
+		DRM_ERROR("Unsupported memory type %u\n", (unsigned int)type);
+		return -EINVAL;
+	}
+
+	return 0;
+}
+
+static void
+vbox_bo_evict_flags(struct ttm_buffer_object *bo, struct ttm_placement *pl)
+{
+	struct vbox_bo *vboxbo = vbox_bo(bo);
+
+	if (!vbox_ttm_bo_is_vbox_bo(bo))
+		return;
+
+	vbox_ttm_placement(vboxbo, TTM_PL_FLAG_SYSTEM);
+	*pl = vboxbo->placement;
+}
+
+static int vbox_bo_verify_access(struct ttm_buffer_object *bo,
+				 struct file *filp)
+{
+	return 0;
+}
+
+static int vbox_ttm_io_mem_reserve(struct ttm_bo_device *bdev,
+				   struct ttm_mem_reg *mem)
+{
+	struct ttm_mem_type_manager *man = &bdev->man[mem->mem_type];
+	struct vbox_private *vbox = vbox_bdev(bdev);
+
+	mem->bus.addr = NULL;
+	mem->bus.offset = 0;
+	mem->bus.size = mem->num_pages << PAGE_SHIFT;
+	mem->bus.base = 0;
+	mem->bus.is_iomem = false;
+	if (!(man->flags & TTM_MEMTYPE_FLAG_MAPPABLE))
+		return -EINVAL;
+	switch (mem->mem_type) {
+	case TTM_PL_SYSTEM:
+		/* system memory */
+		return 0;
+	case TTM_PL_VRAM:
+		mem->bus.offset = mem->start << PAGE_SHIFT;
+		mem->bus.base = pci_resource_start(vbox->dev->pdev, 0);
+		mem->bus.is_iomem = true;
+		break;
+	default:
+		return -EINVAL;
+	}
+	return 0;
+}
+
+static void vbox_ttm_io_mem_free(struct ttm_bo_device *bdev,
+				 struct ttm_mem_reg *mem)
+{
+}
+
+static int vbox_bo_move(struct ttm_buffer_object *bo,
+			bool evict, bool interruptible,
+			bool no_wait_gpu, struct ttm_mem_reg *new_mem)
+{
+	return ttm_bo_move_memcpy(bo, interruptible, no_wait_gpu, new_mem);
+}
+
+static void vbox_ttm_backend_destroy(struct ttm_tt *tt)
+{
+	ttm_tt_fini(tt);
+	kfree(tt);
+}
+
+static struct ttm_backend_func vbox_tt_backend_func = {
+	.destroy = &vbox_ttm_backend_destroy,
+};
+
+static struct ttm_tt *vbox_ttm_tt_create(struct ttm_bo_device *bdev,
+					 unsigned long size,
+					 u32 page_flags,
+					 struct page *dummy_read_page)
+{
+	struct ttm_tt *tt;
+
+	tt = kzalloc(sizeof(*tt), GFP_KERNEL);
+	if (!tt)
+		return NULL;
+
+	tt->func = &vbox_tt_backend_func;
+	if (ttm_tt_init(tt, bdev, size, page_flags, dummy_read_page)) {
+		kfree(tt);
+		return NULL;
+	}
+
+	return tt;
+}
+
+static int vbox_ttm_tt_populate(struct ttm_tt *ttm)
+{
+	return ttm_pool_populate(ttm);
+}
+
+static void vbox_ttm_tt_unpopulate(struct ttm_tt *ttm)
+{
+	ttm_pool_unpopulate(ttm);
+}
+
+struct ttm_bo_driver vbox_bo_driver = {
+	.ttm_tt_create = vbox_ttm_tt_create,
+	.ttm_tt_populate = vbox_ttm_tt_populate,
+	.ttm_tt_unpopulate = vbox_ttm_tt_unpopulate,
+	.init_mem_type = vbox_bo_init_mem_type,
+	.eviction_valuable = ttm_bo_eviction_valuable,
+	.evict_flags = vbox_bo_evict_flags,
+	.move = vbox_bo_move,
+	.verify_access = vbox_bo_verify_access,
+	.io_mem_reserve = &vbox_ttm_io_mem_reserve,
+	.io_mem_free = &vbox_ttm_io_mem_free,
+	.io_mem_pfn = ttm_bo_default_io_mem_pfn,
+};
+
+int vbox_mm_init(struct vbox_private *vbox)
+{
+	int ret;
+	struct drm_device *dev = vbox->dev;
+	struct ttm_bo_device *bdev = &vbox->ttm.bdev;
+
+	ret = vbox_ttm_global_init(vbox);
+	if (ret)
+		return ret;
+
+	ret = ttm_bo_device_init(&vbox->ttm.bdev,
+				 vbox->ttm.bo_global_ref.ref.object,
+				 &vbox_bo_driver,
+				 dev->anon_inode->i_mapping,
+				 DRM_FILE_PAGE_OFFSET, true);
+	if (ret) {
+		DRM_ERROR("Error initialising bo driver; %d\n", ret);
+		goto err_ttm_global_release;
+	}
+
+	ret = ttm_bo_init_mm(bdev, TTM_PL_VRAM,
+			     vbox->available_vram_size >> PAGE_SHIFT);
+	if (ret) {
+		DRM_ERROR("Failed ttm VRAM init: %d\n", ret);
+		goto err_device_release;
+	}
+
+#ifdef DRM_MTRR_WC
+	vbox->fb_mtrr = drm_mtrr_add(pci_resource_start(dev->pdev, 0),
+				     pci_resource_len(dev->pdev, 0),
+				     DRM_MTRR_WC);
+#else
+	vbox->fb_mtrr = arch_phys_wc_add(pci_resource_start(dev->pdev, 0),
+					 pci_resource_len(dev->pdev, 0));
+#endif
+	return 0;
+
+err_device_release:
+	ttm_bo_device_release(&vbox->ttm.bdev);
+err_ttm_global_release:
+	vbox_ttm_global_release(vbox);
+	return ret;
+}
+
+void vbox_mm_fini(struct vbox_private *vbox)
+{
+#ifdef DRM_MTRR_WC
+	drm_mtrr_del(vbox->fb_mtrr,
+		     pci_resource_start(vbox->dev->pdev, 0),
+		     pci_resource_len(vbox->dev->pdev, 0), DRM_MTRR_WC);
+#else
+	arch_phys_wc_del(vbox->fb_mtrr);
+#endif
+	ttm_bo_device_release(&vbox->ttm.bdev);
+	vbox_ttm_global_release(vbox);
+}
+
+void vbox_ttm_placement(struct vbox_bo *bo, int domain)
+{
+	unsigned int i;
+	u32 c = 0;
+
+	bo->placement.placement = bo->placements;
+	bo->placement.busy_placement = bo->placements;
+
+	if (domain & TTM_PL_FLAG_VRAM)
+		bo->placements[c++].flags =
+		    TTM_PL_FLAG_WC | TTM_PL_FLAG_UNCACHED | TTM_PL_FLAG_VRAM;
+	if (domain & TTM_PL_FLAG_SYSTEM)
+		bo->placements[c++].flags =
+		    TTM_PL_MASK_CACHING | TTM_PL_FLAG_SYSTEM;
+	if (!c)
+		bo->placements[c++].flags =
+		    TTM_PL_MASK_CACHING | TTM_PL_FLAG_SYSTEM;
+
+	bo->placement.num_placement = c;
+	bo->placement.num_busy_placement = c;
+
+	for (i = 0; i < c; ++i) {
+		bo->placements[i].fpfn = 0;
+		bo->placements[i].lpfn = 0;
+	}
+}
+
+int vbox_bo_create(struct drm_device *dev, int size, int align,
+		   u32 flags, struct vbox_bo **pvboxbo)
+{
+	struct vbox_private *vbox = dev->dev_private;
+	struct vbox_bo *vboxbo;
+	size_t acc_size;
+	int ret;
+
+	vboxbo = kzalloc(sizeof(*vboxbo), GFP_KERNEL);
+	if (!vboxbo)
+		return -ENOMEM;
+
+	ret = drm_gem_object_init(dev, &vboxbo->gem, size);
+	if (ret)
+		goto err_free_vboxbo;
+
+	vboxbo->bo.bdev = &vbox->ttm.bdev;
+
+	vbox_ttm_placement(vboxbo, TTM_PL_FLAG_VRAM | TTM_PL_FLAG_SYSTEM);
+
+	acc_size = ttm_bo_dma_acc_size(&vbox->ttm.bdev, size,
+				       sizeof(struct vbox_bo));
+
+	ret = ttm_bo_init(&vbox->ttm.bdev, &vboxbo->bo, size,
+			  ttm_bo_type_device, &vboxbo->placement,
+			  align >> PAGE_SHIFT, false, NULL, acc_size,
+			  NULL, NULL, vbox_bo_ttm_destroy);
+	if (ret)
+		goto err_free_vboxbo;
+
+	*pvboxbo = vboxbo;
+
+	return 0;
+
+err_free_vboxbo:
+	kfree(vboxbo);
+	return ret;
+}
+
+static inline u64 vbox_bo_gpu_offset(struct vbox_bo *bo)
+{
+	return bo->bo.offset;
+}
+
+int vbox_bo_pin(struct vbox_bo *bo, u32 pl_flag, u64 *gpu_addr)
+{
+	int i, ret;
+
+	if (bo->pin_count) {
+		bo->pin_count++;
+		if (gpu_addr)
+			*gpu_addr = vbox_bo_gpu_offset(bo);
+
+		return 0;
+	}
+
+	vbox_ttm_placement(bo, pl_flag);
+
+	for (i = 0; i < bo->placement.num_placement; i++)
+		bo->placements[i].flags |= TTM_PL_FLAG_NO_EVICT;
+
+	ret = ttm_bo_validate(&bo->bo, &bo->placement, false, false);
+	if (ret)
+		return ret;
+
+	bo->pin_count = 1;
+
+	if (gpu_addr)
+		*gpu_addr = vbox_bo_gpu_offset(bo);
+
+	return 0;
+}
+
+int vbox_bo_unpin(struct vbox_bo *bo)
+{
+	int i, ret;
+
+	if (!bo->pin_count) {
+		DRM_ERROR("unpin bad %p\n", bo);
+		return 0;
+	}
+	bo->pin_count--;
+	if (bo->pin_count)
+		return 0;
+
+	for (i = 0; i < bo->placement.num_placement; i++)
+		bo->placements[i].flags &= ~TTM_PL_FLAG_NO_EVICT;
+
+	ret = ttm_bo_validate(&bo->bo, &bo->placement, false, false);
+	if (ret)
+		return ret;
+
+	return 0;
+}
+
+/*
+ * Move a vbox-owned buffer object to system memory if no one else has it
+ * pinned.  The caller must have pinned it previously, and this call will
+ * release the caller's pin.
+ */
+int vbox_bo_push_sysram(struct vbox_bo *bo)
+{
+	int i, ret;
+
+	if (!bo->pin_count) {
+		DRM_ERROR("unpin bad %p\n", bo);
+		return 0;
+	}
+	bo->pin_count--;
+	if (bo->pin_count)
+		return 0;
+
+	if (bo->kmap.virtual)
+		ttm_bo_kunmap(&bo->kmap);
+
+	vbox_ttm_placement(bo, TTM_PL_FLAG_SYSTEM);
+
+	for (i = 0; i < bo->placement.num_placement; i++)
+		bo->placements[i].flags |= TTM_PL_FLAG_NO_EVICT;
+
+	ret = ttm_bo_validate(&bo->bo, &bo->placement, false, false);
+	if (ret) {
+		DRM_ERROR("pushing to VRAM failed\n");
+		return ret;
+	}
+
+	return 0;
+}
+
+int vbox_mmap(struct file *filp, struct vm_area_struct *vma)
+{
+	struct drm_file *file_priv;
+	struct vbox_private *vbox;
+
+	if (unlikely(vma->vm_pgoff < DRM_FILE_PAGE_OFFSET))
+		return -EINVAL;
+
+	file_priv = filp->private_data;
+	vbox = file_priv->minor->dev->dev_private;
+
+	return ttm_bo_mmap(filp, vma, &vbox->ttm.bdev);
+}
diff --git a/drivers/staging/vboxvideo/vboxvideo.h b/drivers/staging/vboxvideo/vboxvideo.h
new file mode 100644
index 000000000000..d835d75d761c
--- /dev/null
+++ b/drivers/staging/vboxvideo/vboxvideo.h
@@ -0,0 +1,491 @@
+/*
+ * Copyright (C) 2006-2016 Oracle Corporation
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the
+ * "Software"), to deal in the Software without restriction, including
+ * without limitation the rights to use, copy, modify, merge, publish,
+ * distribute, sub license, and/or sell copies of the Software, and to
+ * permit persons to whom the Software is furnished to do so, subject to
+ * the following conditions:
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDERS, AUTHORS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM,
+ * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
+ * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
+ * USE OR OTHER DEALINGS IN THE SOFTWARE.
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ */
+
+#ifndef __VBOXVIDEO_H__
+#define __VBOXVIDEO_H__
+
+/*
+ * This should be in sync with monitorCount <xsd:maxInclusive value="64"/> in
+ * src/VBox/Main/xml/VirtualBox-settings-common.xsd
+ */
+#define VBOX_VIDEO_MAX_SCREENS 64
+
+/*
+ * The last 4096 bytes of the guest VRAM contains the generic info for all
+ * DualView chunks: sizes and offsets of chunks. This is filled by miniport.
+ *
+ * Last 4096 bytes of each chunk contain chunk specific data: framebuffer info,
+ * etc. This is used exclusively by the corresponding instance of a display
+ * driver.
+ *
+ * The VRAM layout:
+ *   Last 4096 bytes - Adapter information area.
+ *   4096 bytes aligned miniport heap (value specified in the config rouded up).
+ *   Slack - what left after dividing the VRAM.
+ *   4096 bytes aligned framebuffers:
+ *     last 4096 bytes of each framebuffer is the display information area.
+ *
+ * The Virtual Graphics Adapter information in the guest VRAM is stored by the
+ * guest video driver using structures prepended by VBOXVIDEOINFOHDR.
+ *
+ * When the guest driver writes dword 0 to the VBE_DISPI_INDEX_VBOX_VIDEO
+ * the host starts to process the info. The first element at the start of
+ * the 4096 bytes region should be normally be a LINK that points to
+ * actual information chain. That way the guest driver can have some
+ * fixed layout of the information memory block and just rewrite
+ * the link to point to relevant memory chain.
+ *
+ * The processing stops at the END element.
+ *
+ * The host can access the memory only when the port IO is processed.
+ * All data that will be needed later must be copied from these 4096 bytes.
+ * But other VRAM can be used by host until the mode is disabled.
+ *
+ * The guest driver writes dword 0xffffffff to the VBE_DISPI_INDEX_VBOX_VIDEO
+ * to disable the mode.
+ *
+ * VBE_DISPI_INDEX_VBOX_VIDEO is used to read the configuration information
+ * from the host and issue commands to the host.
+ *
+ * The guest writes the VBE_DISPI_INDEX_VBOX_VIDEO index register, the the
+ * following operations with the VBE data register can be performed:
+ *
+ * Operation            Result
+ * write 16 bit value   NOP
+ * read 16 bit value    count of monitors
+ * write 32 bit value   set the vbox cmd value and the cmd processed by the host
+ * read 32 bit value    result of the last vbox command is returned
+ */
+
+/**
+ * VBVA command header.
+ *
+ * @todo Where does this fit in?
+ */
+struct vbva_cmd_hdr {
+   /** Coordinates of affected rectangle. */
+	s16 x;
+	s16 y;
+	u16 w;
+	u16 h;
+} __packed;
+
+/** @name VBVA ring defines.
+ *
+ * The VBVA ring buffer is suitable for transferring large (< 2GB) amount of
+ * data. For example big bitmaps which do not fit to the buffer.
+ *
+ * Guest starts writing to the buffer by initializing a record entry in the
+ * records queue. VBVA_F_RECORD_PARTIAL indicates that the record is being
+ * written. As data is written to the ring buffer, the guest increases
+ * free_offset.
+ *
+ * The host reads the records on flushes and processes all completed records.
+ * When host encounters situation when only a partial record presents and
+ * len_and_flags & ~VBVA_F_RECORD_PARTIAL >= VBVA_RING_BUFFER_SIZE -
+ * VBVA_RING_BUFFER_THRESHOLD, the host fetched all record data and updates
+ * data_offset. After that on each flush the host continues fetching the data
+ * until the record is completed.
+ *
+ */
+#define VBVA_RING_BUFFER_SIZE        (4194304 - 1024)
+#define VBVA_RING_BUFFER_THRESHOLD   (4096)
+
+#define VBVA_MAX_RECORDS (64)
+
+#define VBVA_F_MODE_ENABLED         0x00000001u
+#define VBVA_F_MODE_VRDP            0x00000002u
+#define VBVA_F_MODE_VRDP_RESET      0x00000004u
+#define VBVA_F_MODE_VRDP_ORDER_MASK 0x00000008u
+
+#define VBVA_F_STATE_PROCESSING     0x00010000u
+
+#define VBVA_F_RECORD_PARTIAL       0x80000000u
+
+/**
+ * VBVA record.
+ */
+struct vbva_record {
+	/** The length of the record. Changed by guest. */
+	u32 len_and_flags;
+} __packed;
+
+/*
+ * The minimum HGSMI heap size is PAGE_SIZE (4096 bytes) and is a restriction of
+ * the runtime heapsimple API. Use minimum 2 pages here, because the info area
+ * also may contain other data (for example hgsmi_host_flags structure).
+ */
+#define VBVA_ADAPTER_INFORMATION_SIZE 65536
+#define VBVA_MIN_BUFFER_SIZE          65536
+
+/* The value for port IO to let the adapter to interpret the adapter memory. */
+#define VBOX_VIDEO_DISABLE_ADAPTER_MEMORY        0xFFFFFFFF
+
+/* The value for port IO to let the adapter to interpret the adapter memory. */
+#define VBOX_VIDEO_INTERPRET_ADAPTER_MEMORY      0x00000000
+
+/* The value for port IO to let the adapter to interpret the display memory.
+ * The display number is encoded in low 16 bits.
+ */
+#define VBOX_VIDEO_INTERPRET_DISPLAY_MEMORY_BASE 0x00010000
+
+struct vbva_host_flags {
+	u32 host_events;
+	u32 supported_orders;
+} __packed;
+
+struct vbva_buffer {
+	struct vbva_host_flags host_flags;
+
+	/* The offset where the data start in the buffer. */
+	u32 data_offset;
+	/* The offset where next data must be placed in the buffer. */
+	u32 free_offset;
+
+	/* The queue of record descriptions. */
+	struct vbva_record records[VBVA_MAX_RECORDS];
+	u32 record_first_index;
+	u32 record_free_index;
+
+	/* Space to leave free when large partial records are transferred. */
+	u32 partial_write_tresh;
+
+	u32 data_len;
+	/* variable size for the rest of the vbva_buffer area in VRAM. */
+	u8 data[0];
+} __packed;
+
+#define VBVA_MAX_RECORD_SIZE (128 * 1024 * 1024)
+
+/* guest->host commands */
+#define VBVA_QUERY_CONF32			 1
+#define VBVA_SET_CONF32				 2
+#define VBVA_INFO_VIEW				 3
+#define VBVA_INFO_HEAP				 4
+#define VBVA_FLUSH				 5
+#define VBVA_INFO_SCREEN			 6
+#define VBVA_ENABLE				 7
+#define VBVA_MOUSE_POINTER_SHAPE		 8
+/* informs host about HGSMI caps. see vbva_caps below */
+#define VBVA_INFO_CAPS				12
+/* configures scanline, see VBVASCANLINECFG below */
+#define VBVA_SCANLINE_CFG			13
+/* requests scanline info, see VBVASCANLINEINFO below */
+#define VBVA_SCANLINE_INFO			14
+/* inform host about VBVA Command submission */
+#define VBVA_CMDVBVA_SUBMIT			16
+/* inform host about VBVA Command submission */
+#define VBVA_CMDVBVA_FLUSH			17
+/* G->H DMA command */
+#define VBVA_CMDVBVA_CTL			18
+/* Query most recent mode hints sent */
+#define VBVA_QUERY_MODE_HINTS			19
+/**
+ * Report the guest virtual desktop position and size for mapping host and
+ * guest pointer positions.
+ */
+#define VBVA_REPORT_INPUT_MAPPING		20
+/** Report the guest cursor position and query the host position. */
+#define VBVA_CURSOR_POSITION			21
+
+/* host->guest commands */
+#define VBVAHG_EVENT				1
+#define VBVAHG_DISPLAY_CUSTOM			2
+
+/* vbva_conf32::index */
+#define VBOX_VBVA_CONF32_MONITOR_COUNT		0
+#define VBOX_VBVA_CONF32_HOST_HEAP_SIZE		1
+/**
+ * Returns VINF_SUCCESS if the host can report mode hints via VBVA.
+ * Set value to VERR_NOT_SUPPORTED before calling.
+ */
+#define VBOX_VBVA_CONF32_MODE_HINT_REPORTING	2
+/**
+ * Returns VINF_SUCCESS if the host can report guest cursor enabled status via
+ * VBVA.  Set value to VERR_NOT_SUPPORTED before calling.
+ */
+#define VBOX_VBVA_CONF32_GUEST_CURSOR_REPORTING	3
+/**
+ * Returns the currently available host cursor capabilities.  Available if
+ * vbva_conf32::VBOX_VBVA_CONF32_GUEST_CURSOR_REPORTING returns success.
+ * @see VMMDevReqMouseStatus::mouseFeatures.
+ */
+#define VBOX_VBVA_CONF32_CURSOR_CAPABILITIES	4
+/** Returns the supported flags in vbva_infoscreen::flags. */
+#define VBOX_VBVA_CONF32_SCREEN_FLAGS		5
+/** Returns the max size of VBVA record. */
+#define VBOX_VBVA_CONF32_MAX_RECORD_SIZE	6
+
+struct vbva_conf32 {
+	u32 index;
+	u32 value;
+} __packed;
+
+/** Reserved for historical reasons. */
+#define VBOX_VBVA_CURSOR_CAPABILITY_RESERVED0   BIT(0)
+/**
+ * Guest cursor capability: can the host show a hardware cursor at the host
+ * pointer location?
+ */
+#define VBOX_VBVA_CURSOR_CAPABILITY_HARDWARE    BIT(1)
+/** Reserved for historical reasons. */
+#define VBOX_VBVA_CURSOR_CAPABILITY_RESERVED2   BIT(2)
+/** Reserved for historical reasons.  Must always be unset. */
+#define VBOX_VBVA_CURSOR_CAPABILITY_RESERVED3   BIT(3)
+/** Reserved for historical reasons. */
+#define VBOX_VBVA_CURSOR_CAPABILITY_RESERVED4   BIT(4)
+/** Reserved for historical reasons. */
+#define VBOX_VBVA_CURSOR_CAPABILITY_RESERVED5   BIT(5)
+
+struct vbva_infoview {
+	/* Index of the screen, assigned by the guest. */
+	u32 view_index;
+
+	/* The screen offset in VRAM, the framebuffer starts here. */
+	u32 view_offset;
+
+	/* The size of the VRAM memory that can be used for the view. */
+	u32 view_size;
+
+	/* The recommended maximum size of the VRAM memory for the screen. */
+	u32 max_screen_size;
+} __packed;
+
+struct vbva_flush {
+	u32 reserved;
+} __packed;
+
+/* vbva_infoscreen::flags */
+#define VBVA_SCREEN_F_NONE			0x0000
+#define VBVA_SCREEN_F_ACTIVE			0x0001
+/**
+ * The virtual monitor has been disabled by the guest and should be removed
+ * by the host and ignored for purposes of pointer position calculation.
+ */
+#define VBVA_SCREEN_F_DISABLED			0x0002
+/**
+ * The virtual monitor has been blanked by the guest and should be blacked
+ * out by the host using width, height, etc values from the vbva_infoscreen
+ * request.
+ */
+#define VBVA_SCREEN_F_BLANK			0x0004
+/**
+ * The virtual monitor has been blanked by the guest and should be blacked
+ * out by the host using the previous mode values for width. height, etc.
+ */
+#define VBVA_SCREEN_F_BLANK2			0x0008
+
+struct vbva_infoscreen {
+	/* Which view contains the screen. */
+	u32 view_index;
+
+	/* Physical X origin relative to the primary screen. */
+	s32 origin_x;
+
+	/* Physical Y origin relative to the primary screen. */
+	s32 origin_y;
+
+	/* Offset of visible framebuffer relative to the framebuffer start. */
+	u32 start_offset;
+
+	/* The scan line size in bytes. */
+	u32 line_size;
+
+	/* Width of the screen. */
+	u32 width;
+
+	/* Height of the screen. */
+	u32 height;
+
+	/* Color depth. */
+	u16 bits_per_pixel;
+
+	/* VBVA_SCREEN_F_* */
+	u16 flags;
+} __packed;
+
+/* vbva_enable::flags */
+#define VBVA_F_NONE				0x00000000
+#define VBVA_F_ENABLE				0x00000001
+#define VBVA_F_DISABLE				0x00000002
+/* extended VBVA to be used with WDDM */
+#define VBVA_F_EXTENDED				0x00000004
+/* vbva offset is absolute VRAM offset */
+#define VBVA_F_ABSOFFSET			0x00000008
+
+struct vbva_enable {
+	u32 flags;
+	u32 offset;
+	s32 result;
+} __packed;
+
+struct vbva_enable_ex {
+	struct vbva_enable base;
+	u32 screen_id;
+} __packed;
+
+struct vbva_mouse_pointer_shape {
+	/* The host result. */
+	s32 result;
+
+	/* VBOX_MOUSE_POINTER_* bit flags. */
+	u32 flags;
+
+	/* X coordinate of the hot spot. */
+	u32 hot_X;
+
+	/* Y coordinate of the hot spot. */
+	u32 hot_y;
+
+	/* Width of the pointer in pixels. */
+	u32 width;
+
+	/* Height of the pointer in scanlines. */
+	u32 height;
+
+	/* Pointer data.
+	 *
+	 ****
+	 * The data consists of 1 bpp AND mask followed by 32 bpp XOR (color)
+	 * mask.
+	 *
+	 * For pointers without alpha channel the XOR mask pixels are 32 bit
+	 * values: (lsb)BGR0(msb). For pointers with alpha channel the XOR mask
+	 * consists of (lsb)BGRA(msb) 32 bit values.
+	 *
+	 * Guest driver must create the AND mask for pointers with alpha chan.,
+	 * so if host does not support alpha, the pointer could be displayed as
+	 * a normal color pointer. The AND mask can be constructed from alpha
+	 * values. For example alpha value >= 0xf0 means bit 0 in the AND mask.
+	 *
+	 * The AND mask is 1 bpp bitmap with byte aligned scanlines. Size of AND
+	 * mask, therefore, is and_len = (width + 7) / 8 * height. The padding
+	 * bits at the end of any scanline are undefined.
+	 *
+	 * The XOR mask follows the AND mask on the next 4 bytes aligned offset:
+	 * u8 *xor = and + (and_len + 3) & ~3
+	 * Bytes in the gap between the AND and the XOR mask are undefined.
+	 * XOR mask scanlines have no gap between them and size of XOR mask is:
+	 * xor_len = width * 4 * height.
+	 ****
+	 *
+	 * Preallocate 4 bytes for accessing actual data as p->data.
+	 */
+	u8 data[4];
+} __packed;
+
+/**
+ * @name vbva_mouse_pointer_shape::flags
+ * @note The VBOX_MOUSE_POINTER_* flags are used in the guest video driver,
+ *       values must be <= 0x8000 and must not be changed. (try make more sense
+ *       of this, please).
+ * @{
+ */
+
+/** pointer is visible */
+#define VBOX_MOUSE_POINTER_VISIBLE		0x0001
+/** pointer has alpha channel */
+#define VBOX_MOUSE_POINTER_ALPHA		0x0002
+/** pointerData contains new pointer shape */
+#define VBOX_MOUSE_POINTER_SHAPE		0x0004
+
+/** @} */
+
+/*
+ * The guest driver can handle asynch guest cmd completion by reading the
+ * command offset from io port.
+ */
+#define VBVACAPS_COMPLETEGCMD_BY_IOREAD		0x00000001
+/* the guest driver can handle video adapter IRQs */
+#define VBVACAPS_IRQ				0x00000002
+/** The guest can read video mode hints sent via VBVA. */
+#define VBVACAPS_VIDEO_MODE_HINTS		0x00000004
+/** The guest can switch to a software cursor on demand. */
+#define VBVACAPS_DISABLE_CURSOR_INTEGRATION	0x00000008
+/** The guest does not depend on host handling the VBE registers. */
+#define VBVACAPS_USE_VBVA_ONLY			0x00000010
+
+struct vbva_caps {
+	s32 rc;
+	u32 caps;
+} __packed;
+
+/** Query the most recent mode hints received from the host. */
+struct vbva_query_mode_hints {
+	/** The maximum number of screens to return hints for. */
+	u16 hints_queried_count;
+	/** The size of the mode hint structures directly following this one. */
+	u16 hint_structure_guest_size;
+	/** Return code for the operation. Initialise to VERR_NOT_SUPPORTED. */
+	s32 rc;
+} __packed;
+
+/**
+ * Structure in which a mode hint is returned. The guest allocates an array
+ * of these immediately after the vbva_query_mode_hints structure.
+ * To accommodate future extensions, the vbva_query_mode_hints structure
+ * specifies the size of the vbva_modehint structures allocated by the guest,
+ * and the host only fills out structure elements which fit into that size. The
+ * host should fill any unused members (e.g. dx, dy) or structure space on the
+ * end with ~0. The whole structure can legally be set to ~0 to skip a screen.
+ */
+struct vbva_modehint {
+	u32 magic;
+	u32 cx;
+	u32 cy;
+	u32 bpp;		/* Which has never been used... */
+	u32 display;
+	u32 dx;			/**< X offset into the virtual frame-buffer. */
+	u32 dy;			/**< Y offset into the virtual frame-buffer. */
+	u32 enabled;		/* Not flags. Add new members for new flags. */
+} __packed;
+
+#define VBVAMODEHINT_MAGIC 0x0801add9u
+
+/**
+ * Report the rectangle relative to which absolute pointer events should be
+ * expressed. This information remains valid until the next VBVA resize event
+ * for any screen, at which time it is reset to the bounding rectangle of all
+ * virtual screens and must be re-set.
+ * @see VBVA_REPORT_INPUT_MAPPING.
+ */
+struct vbva_report_input_mapping {
+	s32 x;	/**< Upper left X co-ordinate relative to the first screen. */
+	s32 y;	/**< Upper left Y co-ordinate relative to the first screen. */
+	u32 cx;	/**< Rectangle width. */
+	u32 cy;	/**< Rectangle height. */
+} __packed;
+
+/**
+ * Report the guest cursor position and query the host one. The host may wish
+ * to use the guest information to re-position its own cursor (though this is
+ * currently unlikely).
+ * @see VBVA_CURSOR_POSITION
+ */
+struct vbva_cursor_position {
+	u32 report_position;	/**< Are we reporting a position? */
+	u32 x;			/**< Guest cursor X position */
+	u32 y;			/**< Guest cursor Y position */
+} __packed;
+
+#endif
diff --git a/drivers/staging/vboxvideo/vboxvideo_guest.h b/drivers/staging/vboxvideo/vboxvideo_guest.h
new file mode 100644
index 000000000000..d09da841711a
--- /dev/null
+++ b/drivers/staging/vboxvideo/vboxvideo_guest.h
@@ -0,0 +1,95 @@
+/*
+ * Copyright (C) 2006-2017 Oracle Corporation
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+#ifndef __VBOXVIDEO_GUEST_H__
+#define __VBOXVIDEO_GUEST_H__
+
+#include <linux/genalloc.h>
+#include "vboxvideo.h"
+
+/**
+ * Structure grouping the context needed for sending graphics acceleration
+ * information to the host via VBVA.  Each screen has its own VBVA buffer.
+ */
+struct vbva_buf_ctx {
+	/** Offset of the buffer in the VRAM section for the screen */
+	u32 buffer_offset;
+	/** Length of the buffer in bytes */
+	u32 buffer_length;
+	/** Set if we wrote to the buffer faster than the host could read it */
+	bool buffer_overflow;
+	/** VBVA record that we are currently preparing for the host, or NULL */
+	struct vbva_record *record;
+	/**
+	 * Pointer to the VBVA buffer mapped into the current address space.
+	 * Will be NULL if VBVA is not enabled.
+	 */
+	struct vbva_buffer *vbva;
+};
+
+/**
+ * @name Base HGSMI APIs
+ * @{
+ */
+int hgsmi_report_flags_location(struct gen_pool *ctx, u32 location);
+int hgsmi_send_caps_info(struct gen_pool *ctx, u32 caps);
+int hgsmi_test_query_conf(struct gen_pool *ctx);
+int hgsmi_query_conf(struct gen_pool *ctx, u32 index, u32 *value_ret);
+int hgsmi_update_pointer_shape(struct gen_pool *ctx, u32 flags,
+			       u32 hot_x, u32 hot_y, u32 width, u32 height,
+			       u8 *pixels, u32 len);
+int hgsmi_cursor_position(struct gen_pool *ctx, bool report_position,
+			  u32 x, u32 y, u32 *x_host, u32 *y_host);
+/** @}  */
+
+/**
+ * @name VBVA APIs
+ * @{
+ */
+bool vbva_enable(struct vbva_buf_ctx *vbva_ctx, struct gen_pool *ctx,
+		 struct vbva_buffer *vbva, s32 screen);
+void vbva_disable(struct vbva_buf_ctx *vbva_ctx, struct gen_pool *ctx,
+		  s32 screen);
+bool vbva_buffer_begin_update(struct vbva_buf_ctx *vbva_ctx,
+			      struct gen_pool *ctx);
+void vbva_buffer_end_update(struct vbva_buf_ctx *vbva_ctx);
+bool vbva_write(struct vbva_buf_ctx *vbva_ctx, struct gen_pool *ctx,
+		const void *p, u32 len);
+void vbva_setup_buffer_context(struct vbva_buf_ctx *vbva_ctx,
+			       u32 buffer_offset, u32 buffer_length);
+/** @}  */
+
+/**
+ * @name Modesetting APIs
+ * @{
+ */
+void hgsmi_process_display_info(struct gen_pool *ctx, u32 display,
+				s32 origin_x, s32 origin_y, u32 start_offset,
+				u32 pitch, u32 width, u32 height,
+				u16 bpp, u16 flags);
+int hgsmi_update_input_mapping(struct gen_pool *ctx, s32 origin_x, s32 origin_y,
+			       u32 width, u32 height);
+int hgsmi_get_mode_hints(struct gen_pool *ctx, unsigned int screens,
+			 struct vbva_modehint *hints);
+/** @}  */
+
+#endif
diff --git a/drivers/staging/vboxvideo/vboxvideo_vbe.h b/drivers/staging/vboxvideo/vboxvideo_vbe.h
new file mode 100644
index 000000000000..f842f4d9c80a
--- /dev/null
+++ b/drivers/staging/vboxvideo/vboxvideo_vbe.h
@@ -0,0 +1,84 @@
+/*
+ * Copyright (C) 2006-2017 Oracle Corporation
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+#ifndef __VBOXVIDEO_VBE_H__
+#define __VBOXVIDEO_VBE_H__
+
+/* GUEST <-> HOST Communication API */
+
+/**
+ * @todo FIXME: Either dynamicly ask host for this or put somewhere high in
+ *              physical memory like 0xE0000000.
+ */
+
+#define VBE_DISPI_BANK_ADDRESS          0xA0000
+#define VBE_DISPI_BANK_SIZE_KB          64
+
+#define VBE_DISPI_MAX_XRES              16384
+#define VBE_DISPI_MAX_YRES              16384
+#define VBE_DISPI_MAX_BPP               32
+
+#define VBE_DISPI_IOPORT_INDEX          0x01CE
+#define VBE_DISPI_IOPORT_DATA           0x01CF
+
+#define VBE_DISPI_IOPORT_DAC_WRITE_INDEX  0x03C8
+#define VBE_DISPI_IOPORT_DAC_DATA         0x03C9
+
+#define VBE_DISPI_INDEX_ID              0x0
+#define VBE_DISPI_INDEX_XRES            0x1
+#define VBE_DISPI_INDEX_YRES            0x2
+#define VBE_DISPI_INDEX_BPP             0x3
+#define VBE_DISPI_INDEX_ENABLE          0x4
+#define VBE_DISPI_INDEX_BANK            0x5
+#define VBE_DISPI_INDEX_VIRT_WIDTH      0x6
+#define VBE_DISPI_INDEX_VIRT_HEIGHT     0x7
+#define VBE_DISPI_INDEX_X_OFFSET        0x8
+#define VBE_DISPI_INDEX_Y_OFFSET        0x9
+#define VBE_DISPI_INDEX_VBOX_VIDEO      0xa
+#define VBE_DISPI_INDEX_FB_BASE_HI      0xb
+
+#define VBE_DISPI_ID0                   0xB0C0
+#define VBE_DISPI_ID1                   0xB0C1
+#define VBE_DISPI_ID2                   0xB0C2
+#define VBE_DISPI_ID3                   0xB0C3
+#define VBE_DISPI_ID4                   0xB0C4
+
+#define VBE_DISPI_ID_VBOX_VIDEO         0xBE00
+/* The VBOX interface id. Indicates support for VBVA shared memory interface. */
+#define VBE_DISPI_ID_HGSMI              0xBE01
+#define VBE_DISPI_ID_ANYX               0xBE02
+
+#define VBE_DISPI_DISABLED              0x00
+#define VBE_DISPI_ENABLED               0x01
+#define VBE_DISPI_GETCAPS               0x02
+#define VBE_DISPI_8BIT_DAC              0x20
+/**
+ * @note this definition is a BOCHS legacy, used only in the video BIOS
+ * code and ignored by the emulated hardware.
+ */
+#define VBE_DISPI_LFB_ENABLED           0x40
+#define VBE_DISPI_NOCLEARMEM            0x80
+
+#define VGA_PORT_HGSMI_HOST             0x3b0
+#define VGA_PORT_HGSMI_GUEST            0x3d0
+
+#endif
diff --git a/drivers/staging/vboxvideo/vbva_base.c b/drivers/staging/vboxvideo/vbva_base.c
new file mode 100644
index 000000000000..c10c782f94e1
--- /dev/null
+++ b/drivers/staging/vboxvideo/vbva_base.c
@@ -0,0 +1,233 @@
+/*
+ * Copyright (C) 2006-2017 Oracle Corporation
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+#include "vbox_drv.h"
+#include "vbox_err.h"
+#include "vboxvideo_guest.h"
+#include "hgsmi_channels.h"
+
+/*
+ * There is a hardware ring buffer in the graphics device video RAM, formerly
+ * in the VBox VMMDev PCI memory space.
+ * All graphics commands go there serialized by vbva_buffer_begin_update.
+ * and vbva_buffer_end_update.
+ *
+ * free_offset is writing position. data_offset is reading position.
+ * free_offset == data_offset means buffer is empty.
+ * There must be always gap between data_offset and free_offset when data
+ * are in the buffer.
+ * Guest only changes free_offset, host changes data_offset.
+ */
+
+static u32 vbva_buffer_available(const struct vbva_buffer *vbva)
+{
+	s32 diff = vbva->data_offset - vbva->free_offset;
+
+	return diff > 0 ? diff : vbva->data_len + diff;
+}
+
+static void vbva_buffer_place_data_at(struct vbva_buf_ctx *vbva_ctx,
+				      const void *p, u32 len, u32 offset)
+{
+	struct vbva_buffer *vbva = vbva_ctx->vbva;
+	u32 bytes_till_boundary = vbva->data_len - offset;
+	u8 *dst = &vbva->data[offset];
+	s32 diff = len - bytes_till_boundary;
+
+	if (diff <= 0) {
+		/* Chunk will not cross buffer boundary. */
+		memcpy(dst, p, len);
+	} else {
+		/* Chunk crosses buffer boundary. */
+		memcpy(dst, p, bytes_till_boundary);
+		memcpy(&vbva->data[0], (u8 *)p + bytes_till_boundary, diff);
+	}
+}
+
+static void vbva_buffer_flush(struct gen_pool *ctx)
+{
+	struct vbva_flush *p;
+
+	p = hgsmi_buffer_alloc(ctx, sizeof(*p), HGSMI_CH_VBVA, VBVA_FLUSH);
+	if (!p)
+		return;
+
+	p->reserved = 0;
+
+	hgsmi_buffer_submit(ctx, p);
+	hgsmi_buffer_free(ctx, p);
+}
+
+bool vbva_write(struct vbva_buf_ctx *vbva_ctx, struct gen_pool *ctx,
+		const void *p, u32 len)
+{
+	struct vbva_record *record;
+	struct vbva_buffer *vbva;
+	u32 available;
+
+	vbva = vbva_ctx->vbva;
+	record = vbva_ctx->record;
+
+	if (!vbva || vbva_ctx->buffer_overflow ||
+	    !record || !(record->len_and_flags & VBVA_F_RECORD_PARTIAL))
+		return false;
+
+	available = vbva_buffer_available(vbva);
+
+	while (len > 0) {
+		u32 chunk = len;
+
+		if (chunk >= available) {
+			vbva_buffer_flush(ctx);
+			available = vbva_buffer_available(vbva);
+		}
+
+		if (chunk >= available) {
+			if (WARN_ON(available <= vbva->partial_write_tresh)) {
+				vbva_ctx->buffer_overflow = true;
+				return false;
+			}
+			chunk = available - vbva->partial_write_tresh;
+		}
+
+		vbva_buffer_place_data_at(vbva_ctx, p, chunk,
+					  vbva->free_offset);
+
+		vbva->free_offset = (vbva->free_offset + chunk) %
+				    vbva->data_len;
+		record->len_and_flags += chunk;
+		available -= chunk;
+		len -= chunk;
+		p += chunk;
+	}
+
+	return true;
+}
+
+static bool vbva_inform_host(struct vbva_buf_ctx *vbva_ctx,
+			     struct gen_pool *ctx, s32 screen, bool enable)
+{
+	struct vbva_enable_ex *p;
+	bool ret;
+
+	p = hgsmi_buffer_alloc(ctx, sizeof(*p), HGSMI_CH_VBVA, VBVA_ENABLE);
+	if (!p)
+		return false;
+
+	p->base.flags = enable ? VBVA_F_ENABLE : VBVA_F_DISABLE;
+	p->base.offset = vbva_ctx->buffer_offset;
+	p->base.result = VERR_NOT_SUPPORTED;
+	if (screen >= 0) {
+		p->base.flags |= VBVA_F_EXTENDED | VBVA_F_ABSOFFSET;
+		p->screen_id = screen;
+	}
+
+	hgsmi_buffer_submit(ctx, p);
+
+	if (enable)
+		ret = RT_SUCCESS(p->base.result);
+	else
+		ret = true;
+
+	hgsmi_buffer_free(ctx, p);
+
+	return ret;
+}
+
+bool vbva_enable(struct vbva_buf_ctx *vbva_ctx, struct gen_pool *ctx,
+		 struct vbva_buffer *vbva, s32 screen)
+{
+	bool ret = false;
+
+	memset(vbva, 0, sizeof(*vbva));
+	vbva->partial_write_tresh = 256;
+	vbva->data_len = vbva_ctx->buffer_length - sizeof(struct vbva_buffer);
+	vbva_ctx->vbva = vbva;
+
+	ret = vbva_inform_host(vbva_ctx, ctx, screen, true);
+	if (!ret)
+		vbva_disable(vbva_ctx, ctx, screen);
+
+	return ret;
+}
+
+void vbva_disable(struct vbva_buf_ctx *vbva_ctx, struct gen_pool *ctx,
+		  s32 screen)
+{
+	vbva_ctx->buffer_overflow = false;
+	vbva_ctx->record = NULL;
+	vbva_ctx->vbva = NULL;
+
+	vbva_inform_host(vbva_ctx, ctx, screen, false);
+}
+
+bool vbva_buffer_begin_update(struct vbva_buf_ctx *vbva_ctx,
+			      struct gen_pool *ctx)
+{
+	struct vbva_record *record;
+	u32 next;
+
+	if (!vbva_ctx->vbva ||
+	    !(vbva_ctx->vbva->host_flags.host_events & VBVA_F_MODE_ENABLED))
+		return false;
+
+	WARN_ON(vbva_ctx->buffer_overflow || vbva_ctx->record);
+
+	next = (vbva_ctx->vbva->record_free_index + 1) % VBVA_MAX_RECORDS;
+
+	/* Flush if all slots in the records queue are used */
+	if (next == vbva_ctx->vbva->record_first_index)
+		vbva_buffer_flush(ctx);
+
+	/* If even after flush there is no place then fail the request */
+	if (next == vbva_ctx->vbva->record_first_index)
+		return false;
+
+	record = &vbva_ctx->vbva->records[vbva_ctx->vbva->record_free_index];
+	record->len_and_flags = VBVA_F_RECORD_PARTIAL;
+	vbva_ctx->vbva->record_free_index = next;
+	/* Remember which record we are using. */
+	vbva_ctx->record = record;
+
+	return true;
+}
+
+void vbva_buffer_end_update(struct vbva_buf_ctx *vbva_ctx)
+{
+	struct vbva_record *record = vbva_ctx->record;
+
+	WARN_ON(!vbva_ctx->vbva || !record ||
+		!(record->len_and_flags & VBVA_F_RECORD_PARTIAL));
+
+	/* Mark the record completed. */
+	record->len_and_flags &= ~VBVA_F_RECORD_PARTIAL;
+
+	vbva_ctx->buffer_overflow = false;
+	vbva_ctx->record = NULL;
+}
+
+void vbva_setup_buffer_context(struct vbva_buf_ctx *vbva_ctx,
+			       u32 buffer_offset, u32 buffer_length)
+{
+	vbva_ctx->buffer_offset = buffer_offset;
+	vbva_ctx->buffer_length = buffer_length;
+}
diff --git a/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_arm.c b/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_arm.c
index 030bec855d86..314ffac50bb8 100644
--- a/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_arm.c
+++ b/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_arm.c
@@ -3391,7 +3391,6 @@ static int vchiq_probe(struct platform_device *pdev)
 	struct device_node *fw_node;
 	struct rpi_firmware *fw;
 	int err;
-	void *ptr_err;
 
 	fw_node = of_parse_phandle(pdev->dev.of_node, "firmware", 0);
 	if (!fw_node) {
@@ -3427,14 +3426,14 @@ static int vchiq_probe(struct platform_device *pdev)
 
 	/* create sysfs entries */
 	vchiq_class = class_create(THIS_MODULE, DEVICE_NAME);
-	ptr_err = vchiq_class;
-	if (IS_ERR(ptr_err))
+	err = PTR_ERR(vchiq_class);
+	if (IS_ERR(vchiq_class))
 		goto failed_class_create;
 
 	vchiq_dev = device_create(vchiq_class, NULL,
 		vchiq_devid, NULL, "vchiq");
-	ptr_err = vchiq_dev;
-	if (IS_ERR(ptr_err))
+	err = PTR_ERR(vchiq_dev);
+	if (IS_ERR(vchiq_dev))
 		goto failed_device_create;
 
 	/* create debugfs entries */
@@ -3455,7 +3454,6 @@ failed_device_create:
 	class_destroy(vchiq_class);
 failed_class_create:
 	cdev_del(&vchiq_cdev);
-	err = PTR_ERR(ptr_err);
 failed_cdev_add:
 	unregister_chrdev_region(vchiq_devid, 1);
 failed_platform_init:
diff --git a/drivers/target/iscsi/cxgbit/cxgbit_cm.c b/drivers/target/iscsi/cxgbit/cxgbit_cm.c
index e583dd8a418b..d4fa41be80f9 100644
--- a/drivers/target/iscsi/cxgbit/cxgbit_cm.c
+++ b/drivers/target/iscsi/cxgbit/cxgbit_cm.c
@@ -1510,11 +1510,13 @@ cxgbit_pass_open_rpl(struct cxgbit_device *cdev, struct sk_buff *skb)
 
 	if (!cnp) {
 		pr_info("%s stid %d lookup failure\n", __func__, stid);
-		return;
+		goto rel_skb;
 	}
 
 	cxgbit_wake_up(&cnp->com.wr_wait, __func__, rpl->status);
 	cxgbit_put_cnp(cnp);
+rel_skb:
+	__kfree_skb(skb);
 }
 
 static void
@@ -1530,11 +1532,13 @@ cxgbit_close_listsrv_rpl(struct cxgbit_device *cdev, struct sk_buff *skb)
 
 	if (!cnp) {
 		pr_info("%s stid %d lookup failure\n", __func__, stid);
-		return;
+		goto rel_skb;
 	}
 
 	cxgbit_wake_up(&cnp->com.wr_wait, __func__, rpl->status);
 	cxgbit_put_cnp(cnp);
+rel_skb:
+	__kfree_skb(skb);
 }
 
 static void
@@ -1819,12 +1823,16 @@ static void cxgbit_set_tcb_rpl(struct cxgbit_device *cdev, struct sk_buff *skb)
 	struct tid_info *t = lldi->tids;
 
 	csk = lookup_tid(t, tid);
-	if (unlikely(!csk))
+	if (unlikely(!csk)) {
 		pr_err("can't find connection for tid %u.\n", tid);
-	else
+		goto rel_skb;
+	} else {
 		cxgbit_wake_up(&csk->com.wr_wait, __func__, rpl->status);
+	}
 
 	cxgbit_put_csk(csk);
+rel_skb:
+	__kfree_skb(skb);
 }
 
 static void cxgbit_rx_data(struct cxgbit_device *cdev, struct sk_buff *skb)
diff --git a/drivers/target/iscsi/cxgbit/cxgbit_target.c b/drivers/target/iscsi/cxgbit/cxgbit_target.c
index dda13f1af38e..514986b57c2d 100644
--- a/drivers/target/iscsi/cxgbit/cxgbit_target.c
+++ b/drivers/target/iscsi/cxgbit/cxgbit_target.c
@@ -827,7 +827,7 @@ cxgbit_put_login_tx(struct iscsi_conn *conn, struct iscsi_login *login,
 
 static void
 cxgbit_skb_copy_to_sg(struct sk_buff *skb, struct scatterlist *sg,
-		      unsigned int nents)
+		      unsigned int nents, u32 skip)
 {
 	struct skb_seq_state st;
 	const u8 *buf;
@@ -846,7 +846,7 @@ cxgbit_skb_copy_to_sg(struct sk_buff *skb, struct scatterlist *sg,
 		}
 
 		consumed += sg_pcopy_from_buffer(sg, nents, (void *)buf,
-						 buf_len, consumed);
+						 buf_len, skip + consumed);
 	}
 }
 
@@ -912,7 +912,7 @@ cxgbit_handle_immediate_data(struct iscsi_cmd *cmd, struct iscsi_scsi_req *hdr,
 		struct scatterlist *sg = &cmd->se_cmd.t_data_sg[0];
 		u32 sg_nents = max(1UL, DIV_ROUND_UP(pdu_cb->dlen, PAGE_SIZE));
 
-		cxgbit_skb_copy_to_sg(csk->skb, sg, sg_nents);
+		cxgbit_skb_copy_to_sg(csk->skb, sg, sg_nents, 0);
 	}
 
 	cmd->write_data_done += pdu_cb->dlen;
@@ -1069,11 +1069,13 @@ static int cxgbit_handle_iscsi_dataout(struct cxgbit_sock *csk)
 		  cmd->se_cmd.data_length);
 
 	if (!(pdu_cb->flags & PDUCBF_RX_DATA_DDPD)) {
+		u32 skip = data_offset % PAGE_SIZE;
+
 		sg_off = data_offset / PAGE_SIZE;
 		sg_start = &cmd->se_cmd.t_data_sg[sg_off];
-		sg_nents = max(1UL, DIV_ROUND_UP(data_len, PAGE_SIZE));
+		sg_nents = max(1UL, DIV_ROUND_UP(skip + data_len, PAGE_SIZE));
 
-		cxgbit_skb_copy_to_sg(csk->skb, sg_start, sg_nents);
+		cxgbit_skb_copy_to_sg(csk->skb, sg_start, sg_nents, skip);
 	}
 
 check_payload:
diff --git a/drivers/target/iscsi/iscsi_target.c b/drivers/target/iscsi/iscsi_target.c
index 3fdca2cdd8da..5001261f5d69 100644
--- a/drivers/target/iscsi/iscsi_target.c
+++ b/drivers/target/iscsi/iscsi_target.c
@@ -418,6 +418,7 @@ int iscsit_reset_np_thread(
 		return 0;
 	}
 	np->np_thread_state = ISCSI_NP_THREAD_RESET;
+	atomic_inc(&np->np_reset_count);
 
 	if (np->np_thread) {
 		spin_unlock_bh(&np->np_thread_lock);
@@ -488,15 +489,13 @@ EXPORT_SYMBOL(iscsit_queue_rsp);
 
 void iscsit_aborted_task(struct iscsi_conn *conn, struct iscsi_cmd *cmd)
 {
-	bool scsi_cmd = (cmd->iscsi_opcode == ISCSI_OP_SCSI_CMD);
-
 	spin_lock_bh(&conn->cmd_lock);
 	if (!list_empty(&cmd->i_conn_node) &&
 	    !(cmd->se_cmd.transport_state & CMD_T_FABRIC_STOP))
 		list_del_init(&cmd->i_conn_node);
 	spin_unlock_bh(&conn->cmd_lock);
 
-	__iscsit_free_cmd(cmd, scsi_cmd, true);
+	__iscsit_free_cmd(cmd, true);
 }
 EXPORT_SYMBOL(iscsit_aborted_task);
 
@@ -1251,12 +1250,8 @@ int iscsit_process_scsi_cmd(struct iscsi_conn *conn, struct iscsi_cmd *cmd,
 	 * execution.  These exceptions are processed in CmdSN order using
 	 * iscsit_check_received_cmdsn() in iscsit_get_immediate_data() below.
 	 */
-	if (cmd->sense_reason) {
-		if (cmd->reject_reason)
-			return 0;
-
+	if (cmd->sense_reason)
 		return 1;
-	}
 	/*
 	 * Call directly into transport_generic_new_cmd() to perform
 	 * the backend memory allocation.
@@ -2173,6 +2168,7 @@ iscsit_setup_text_cmd(struct iscsi_conn *conn, struct iscsi_cmd *cmd,
 	cmd->cmd_sn		= be32_to_cpu(hdr->cmdsn);
 	cmd->exp_stat_sn	= be32_to_cpu(hdr->exp_statsn);
 	cmd->data_direction	= DMA_NONE;
+	kfree(cmd->text_in_ptr);
 	cmd->text_in_ptr	= NULL;
 
 	return 0;
@@ -3493,9 +3489,9 @@ iscsit_build_text_rsp(struct iscsi_cmd *cmd, struct iscsi_conn *conn,
 		return text_length;
 
 	if (completed) {
-		hdr->flags |= ISCSI_FLAG_CMD_FINAL;
+		hdr->flags = ISCSI_FLAG_CMD_FINAL;
 	} else {
-		hdr->flags |= ISCSI_FLAG_TEXT_CONTINUE;
+		hdr->flags = ISCSI_FLAG_TEXT_CONTINUE;
 		cmd->read_data_done += text_length;
 		if (cmd->targ_xfer_tag == 0xFFFFFFFF)
 			cmd->targ_xfer_tag = session_get_next_ttt(conn->sess);
diff --git a/drivers/target/iscsi/iscsi_target_auth.c b/drivers/target/iscsi/iscsi_target_auth.c
index 903b667f8e01..f9bc8ec6fb6b 100644
--- a/drivers/target/iscsi/iscsi_target_auth.c
+++ b/drivers/target/iscsi/iscsi_target_auth.c
@@ -47,18 +47,21 @@ static void chap_binaryhex_to_asciihex(char *dst, char *src, int src_len)
 	}
 }
 
-static void chap_gen_challenge(
+static int chap_gen_challenge(
 	struct iscsi_conn *conn,
 	int caller,
 	char *c_str,
 	unsigned int *c_len)
 {
+	int ret;
 	unsigned char challenge_asciihex[CHAP_CHALLENGE_LENGTH * 2 + 1];
 	struct iscsi_chap *chap = conn->auth_protocol;
 
 	memset(challenge_asciihex, 0, CHAP_CHALLENGE_LENGTH * 2 + 1);
 
-	get_random_bytes(chap->challenge, CHAP_CHALLENGE_LENGTH);
+	ret = get_random_bytes_wait(chap->challenge, CHAP_CHALLENGE_LENGTH);
+	if (unlikely(ret))
+		return ret;
 	chap_binaryhex_to_asciihex(challenge_asciihex, chap->challenge,
 				CHAP_CHALLENGE_LENGTH);
 	/*
@@ -69,6 +72,7 @@ static void chap_gen_challenge(
 
 	pr_debug("[%s] Sending CHAP_C=0x%s\n\n", (caller) ? "server" : "client",
 			challenge_asciihex);
+	return 0;
 }
 
 static int chap_check_algorithm(const char *a_str)
@@ -143,6 +147,7 @@ static struct iscsi_chap *chap_server_open(
 	case CHAP_DIGEST_UNKNOWN:
 	default:
 		pr_err("Unsupported CHAP_A value\n");
+		kfree(conn->auth_protocol);
 		return NULL;
 	}
 
@@ -156,7 +161,10 @@ static struct iscsi_chap *chap_server_open(
 	/*
 	 * Generate Challenge.
 	 */
-	chap_gen_challenge(conn, 1, aic_str, aic_len);
+	if (chap_gen_challenge(conn, 1, aic_str, aic_len) < 0) {
+		kfree(conn->auth_protocol);
+		return NULL;
+	}
 
 	return chap;
 }
diff --git a/drivers/target/iscsi/iscsi_target_configfs.c b/drivers/target/iscsi/iscsi_target_configfs.c
index 535a8e06a401..0dd4c45f7575 100644
--- a/drivers/target/iscsi/iscsi_target_configfs.c
+++ b/drivers/target/iscsi/iscsi_target_configfs.c
@@ -781,6 +781,7 @@ DEF_TPG_ATTRIB(default_erl);
 DEF_TPG_ATTRIB(t10_pi);
 DEF_TPG_ATTRIB(fabric_prot_type);
 DEF_TPG_ATTRIB(tpg_enabled_sendtargets);
+DEF_TPG_ATTRIB(login_keys_workaround);
 
 static struct configfs_attribute *lio_target_tpg_attrib_attrs[] = {
 	&iscsi_tpg_attrib_attr_authentication,
@@ -796,6 +797,7 @@ static struct configfs_attribute *lio_target_tpg_attrib_attrs[] = {
 	&iscsi_tpg_attrib_attr_t10_pi,
 	&iscsi_tpg_attrib_attr_fabric_prot_type,
 	&iscsi_tpg_attrib_attr_tpg_enabled_sendtargets,
+	&iscsi_tpg_attrib_attr_login_keys_workaround,
 	NULL,
 };
 
diff --git a/drivers/target/iscsi/iscsi_target_login.c b/drivers/target/iscsi/iscsi_target_login.c
index 92b96b51d506..dc13afbd4c88 100644
--- a/drivers/target/iscsi/iscsi_target_login.c
+++ b/drivers/target/iscsi/iscsi_target_login.c
@@ -245,22 +245,26 @@ int iscsi_check_for_session_reinstatement(struct iscsi_conn *conn)
 	return 0;
 }
 
-static void iscsi_login_set_conn_values(
+static int iscsi_login_set_conn_values(
 	struct iscsi_session *sess,
 	struct iscsi_conn *conn,
 	__be16 cid)
 {
+	int ret;
 	conn->sess		= sess;
 	conn->cid		= be16_to_cpu(cid);
 	/*
 	 * Generate a random Status sequence number (statsn) for the new
 	 * iSCSI connection.
 	 */
-	get_random_bytes(&conn->stat_sn, sizeof(u32));
+	ret = get_random_bytes_wait(&conn->stat_sn, sizeof(u32));
+	if (unlikely(ret))
+		return ret;
 
 	mutex_lock(&auth_id_lock);
 	conn->auth_id		= iscsit_global->auth_id++;
 	mutex_unlock(&auth_id_lock);
+	return 0;
 }
 
 __printf(2, 3) int iscsi_change_param_sprintf(
@@ -306,7 +310,11 @@ static int iscsi_login_zero_tsih_s1(
 		return -ENOMEM;
 	}
 
-	iscsi_login_set_conn_values(sess, conn, pdu->cid);
+	ret = iscsi_login_set_conn_values(sess, conn, pdu->cid);
+	if (unlikely(ret)) {
+		kfree(sess);
+		return ret;
+	}
 	sess->init_task_tag	= pdu->itt;
 	memcpy(&sess->isid, pdu->isid, 6);
 	sess->exp_cmd_sn	= be32_to_cpu(pdu->cmdsn);
@@ -497,8 +505,7 @@ static int iscsi_login_non_zero_tsih_s1(
 {
 	struct iscsi_login_req *pdu = (struct iscsi_login_req *)buf;
 
-	iscsi_login_set_conn_values(NULL, conn, pdu->cid);
-	return 0;
+	return iscsi_login_set_conn_values(NULL, conn, pdu->cid);
 }
 
 /*
@@ -554,9 +561,8 @@ static int iscsi_login_non_zero_tsih_s2(
 		atomic_set(&sess->session_continuation, 1);
 	spin_unlock_bh(&sess->conn_lock);
 
-	iscsi_login_set_conn_values(sess, conn, pdu->cid);
-
-	if (iscsi_copy_param_list(&conn->param_list,
+	if (iscsi_login_set_conn_values(sess, conn, pdu->cid) < 0 ||
+	    iscsi_copy_param_list(&conn->param_list,
 			conn->tpg->param_list, 0) < 0) {
 		iscsit_tx_login_rsp(conn, ISCSI_STATUS_CLS_TARGET_ERR,
 				ISCSI_LOGIN_STATUS_NO_RESOURCES);
@@ -1237,9 +1243,11 @@ static int __iscsi_target_login_thread(struct iscsi_np *np)
 	flush_signals(current);
 
 	spin_lock_bh(&np->np_thread_lock);
-	if (np->np_thread_state == ISCSI_NP_THREAD_RESET) {
+	if (atomic_dec_if_positive(&np->np_reset_count) >= 0) {
 		np->np_thread_state = ISCSI_NP_THREAD_ACTIVE;
+		spin_unlock_bh(&np->np_thread_lock);
 		complete(&np->np_restart_comp);
+		return 1;
 	} else if (np->np_thread_state == ISCSI_NP_THREAD_SHUTDOWN) {
 		spin_unlock_bh(&np->np_thread_lock);
 		goto exit;
@@ -1272,7 +1280,8 @@ static int __iscsi_target_login_thread(struct iscsi_np *np)
 		goto exit;
 	} else if (rc < 0) {
 		spin_lock_bh(&np->np_thread_lock);
-		if (np->np_thread_state == ISCSI_NP_THREAD_RESET) {
+		if (atomic_dec_if_positive(&np->np_reset_count) >= 0) {
+			np->np_thread_state = ISCSI_NP_THREAD_ACTIVE;
 			spin_unlock_bh(&np->np_thread_lock);
 			complete(&np->np_restart_comp);
 			iscsit_put_transport(conn->conn_transport);
diff --git a/drivers/target/iscsi/iscsi_target_nego.c b/drivers/target/iscsi/iscsi_target_nego.c
index 6f88b31242b0..7a6751fecd32 100644
--- a/drivers/target/iscsi/iscsi_target_nego.c
+++ b/drivers/target/iscsi/iscsi_target_nego.c
@@ -655,28 +655,6 @@ err:
 	iscsit_deaccess_np(np, tpg, tpg_np);
 }
 
-static void iscsi_target_do_cleanup(struct work_struct *work)
-{
-	struct iscsi_conn *conn = container_of(work,
-				struct iscsi_conn, login_cleanup_work.work);
-	struct sock *sk = conn->sock->sk;
-	struct iscsi_login *login = conn->login;
-	struct iscsi_np *np = login->np;
-	struct iscsi_portal_group *tpg = conn->tpg;
-	struct iscsi_tpg_np *tpg_np = conn->tpg_np;
-
-	pr_debug("Entering iscsi_target_do_cleanup\n");
-
-	cancel_delayed_work_sync(&conn->login_work);
-	conn->orig_state_change(sk);
-
-	iscsi_target_restore_sock_callbacks(conn);
-	iscsi_target_login_drop(conn, login);
-	iscsit_deaccess_np(np, tpg, tpg_np);
-
-	pr_debug("iscsi_target_do_cleanup done()\n");
-}
-
 static void iscsi_target_sk_state_change(struct sock *sk)
 {
 	struct iscsi_conn *conn;
@@ -886,7 +864,8 @@ static int iscsi_target_handle_csg_zero(
 			SENDER_TARGET,
 			login->rsp_buf,
 			&login->rsp_length,
-			conn->param_list);
+			conn->param_list,
+			conn->tpg->tpg_attrib.login_keys_workaround);
 	if (ret < 0)
 		return -1;
 
@@ -956,7 +935,8 @@ static int iscsi_target_handle_csg_one(struct iscsi_conn *conn, struct iscsi_log
 			SENDER_TARGET,
 			login->rsp_buf,
 			&login->rsp_length,
-			conn->param_list);
+			conn->param_list,
+			conn->tpg->tpg_attrib.login_keys_workaround);
 	if (ret < 0) {
 		iscsit_tx_login_rsp(conn, ISCSI_STATUS_CLS_INITIATOR_ERR,
 				ISCSI_LOGIN_STATUS_INIT_ERR);
@@ -1082,7 +1062,6 @@ int iscsi_target_locate_portal(
 	int sessiontype = 0, ret = 0, tag_num, tag_size;
 
 	INIT_DELAYED_WORK(&conn->login_work, iscsi_target_do_login_rx);
-	INIT_DELAYED_WORK(&conn->login_cleanup_work, iscsi_target_do_cleanup);
 	iscsi_target_set_sock_callbacks(conn);
 
 	login->np = np;
@@ -1331,7 +1310,6 @@ int iscsi_target_start_negotiation(
 
 	if (ret < 0) {
 		cancel_delayed_work_sync(&conn->login_work);
-		cancel_delayed_work_sync(&conn->login_cleanup_work);
 		iscsi_target_restore_sock_callbacks(conn);
 		iscsi_remove_failed_auth_entry(conn);
 	}
diff --git a/drivers/target/iscsi/iscsi_target_parameters.c b/drivers/target/iscsi/iscsi_target_parameters.c
index fce627628200..caab1045742d 100644
--- a/drivers/target/iscsi/iscsi_target_parameters.c
+++ b/drivers/target/iscsi/iscsi_target_parameters.c
@@ -765,7 +765,8 @@ static int iscsi_check_for_auth_key(char *key)
 	return 0;
 }
 
-static void iscsi_check_proposer_for_optional_reply(struct iscsi_param *param)
+static void iscsi_check_proposer_for_optional_reply(struct iscsi_param *param,
+						    bool keys_workaround)
 {
 	if (IS_TYPE_BOOL_AND(param)) {
 		if (!strcmp(param->value, NO))
@@ -773,19 +774,31 @@ static void iscsi_check_proposer_for_optional_reply(struct iscsi_param *param)
 	} else if (IS_TYPE_BOOL_OR(param)) {
 		if (!strcmp(param->value, YES))
 			SET_PSTATE_REPLY_OPTIONAL(param);
-		 /*
-		  * Required for gPXE iSCSI boot client
-		  */
-		if (!strcmp(param->name, IMMEDIATEDATA))
-			SET_PSTATE_REPLY_OPTIONAL(param);
+
+		if (keys_workaround) {
+			/*
+			 * Required for gPXE iSCSI boot client
+			 */
+			if (!strcmp(param->name, IMMEDIATEDATA))
+				SET_PSTATE_REPLY_OPTIONAL(param);
+		}
 	} else if (IS_TYPE_NUMBER(param)) {
 		if (!strcmp(param->name, MAXRECVDATASEGMENTLENGTH))
 			SET_PSTATE_REPLY_OPTIONAL(param);
-		/*
-		 * Required for gPXE iSCSI boot client
-		 */
-		if (!strcmp(param->name, MAXCONNECTIONS))
-			SET_PSTATE_REPLY_OPTIONAL(param);
+
+		if (keys_workaround) {
+			/*
+			 * Required for Mellanox Flexboot PXE boot ROM
+			 */
+			if (!strcmp(param->name, FIRSTBURSTLENGTH))
+				SET_PSTATE_REPLY_OPTIONAL(param);
+
+			/*
+			 * Required for gPXE iSCSI boot client
+			 */
+			if (!strcmp(param->name, MAXCONNECTIONS))
+				SET_PSTATE_REPLY_OPTIONAL(param);
+		}
 	} else if (IS_PHASE_DECLARATIVE(param))
 		SET_PSTATE_REPLY_OPTIONAL(param);
 }
@@ -1422,7 +1435,8 @@ int iscsi_encode_text_output(
 	u8 sender,
 	char *textbuf,
 	u32 *length,
-	struct iscsi_param_list *param_list)
+	struct iscsi_param_list *param_list,
+	bool keys_workaround)
 {
 	char *output_buf = NULL;
 	struct iscsi_extra_response *er;
@@ -1458,7 +1472,8 @@ int iscsi_encode_text_output(
 			*length += 1;
 			output_buf = textbuf + *length;
 			SET_PSTATE_PROPOSER(param);
-			iscsi_check_proposer_for_optional_reply(param);
+			iscsi_check_proposer_for_optional_reply(param,
+							        keys_workaround);
 			pr_debug("Sending key: %s=%s\n",
 				param->name, param->value);
 		}
diff --git a/drivers/target/iscsi/iscsi_target_parameters.h b/drivers/target/iscsi/iscsi_target_parameters.h
index 9962ccf0ccd7..c47b73f57528 100644
--- a/drivers/target/iscsi/iscsi_target_parameters.h
+++ b/drivers/target/iscsi/iscsi_target_parameters.h
@@ -46,7 +46,7 @@ extern int iscsi_extract_key_value(char *, char **, char **);
 extern int iscsi_update_param_value(struct iscsi_param *, char *);
 extern int iscsi_decode_text_input(u8, u8, char *, u32, struct iscsi_conn *);
 extern int iscsi_encode_text_output(u8, u8, char *, u32 *,
-			struct iscsi_param_list *);
+			struct iscsi_param_list *, bool);
 extern int iscsi_check_negotiated_keys(struct iscsi_param_list *);
 extern void iscsi_set_connection_parameters(struct iscsi_conn_ops *,
 			struct iscsi_param_list *);
diff --git a/drivers/target/iscsi/iscsi_target_tpg.c b/drivers/target/iscsi/iscsi_target_tpg.c
index 2e7e08dbda48..594d07a1e995 100644
--- a/drivers/target/iscsi/iscsi_target_tpg.c
+++ b/drivers/target/iscsi/iscsi_target_tpg.c
@@ -227,6 +227,7 @@ static void iscsit_set_default_tpg_attribs(struct iscsi_portal_group *tpg)
 	a->t10_pi = TA_DEFAULT_T10_PI;
 	a->fabric_prot_type = TA_DEFAULT_FABRIC_PROT_TYPE;
 	a->tpg_enabled_sendtargets = TA_DEFAULT_TPG_ENABLED_SENDTARGETS;
+	a->login_keys_workaround = TA_DEFAULT_LOGIN_KEYS_WORKAROUND;
 }
 
 int iscsit_tpg_add_portal_group(struct iscsi_tiqn *tiqn, struct iscsi_portal_group *tpg)
@@ -311,11 +312,9 @@ int iscsit_tpg_enable_portal_group(struct iscsi_portal_group *tpg)
 	struct iscsi_tiqn *tiqn = tpg->tpg_tiqn;
 	int ret;
 
-	spin_lock(&tpg->tpg_state_lock);
 	if (tpg->tpg_state == TPG_STATE_ACTIVE) {
 		pr_err("iSCSI target portal group: %hu is already"
 			" active, ignoring request.\n", tpg->tpgt);
-		spin_unlock(&tpg->tpg_state_lock);
 		return -EINVAL;
 	}
 	/*
@@ -324,10 +323,8 @@ int iscsit_tpg_enable_portal_group(struct iscsi_portal_group *tpg)
 	 * is enforced (as per default), and remove the NONE option.
 	 */
 	param = iscsi_find_param_from_key(AUTHMETHOD, tpg->param_list);
-	if (!param) {
-		spin_unlock(&tpg->tpg_state_lock);
+	if (!param)
 		return -EINVAL;
-	}
 
 	if (tpg->tpg_attrib.authentication) {
 		if (!strcmp(param->value, NONE)) {
@@ -341,6 +338,7 @@ int iscsit_tpg_enable_portal_group(struct iscsi_portal_group *tpg)
 			goto err;
 	}
 
+	spin_lock(&tpg->tpg_state_lock);
 	tpg->tpg_state = TPG_STATE_ACTIVE;
 	spin_unlock(&tpg->tpg_state_lock);
 
@@ -353,7 +351,6 @@ int iscsit_tpg_enable_portal_group(struct iscsi_portal_group *tpg)
 	return 0;
 
 err:
-	spin_unlock(&tpg->tpg_state_lock);
 	return ret;
 }
 
@@ -899,3 +896,21 @@ int iscsit_ta_tpg_enabled_sendtargets(
 
 	return 0;
 }
+
+int iscsit_ta_login_keys_workaround(
+	struct iscsi_portal_group *tpg,
+	u32 flag)
+{
+	struct iscsi_tpg_attrib *a = &tpg->tpg_attrib;
+
+	if ((flag != 0) && (flag != 1)) {
+		pr_err("Illegal value %d\n", flag);
+		return -EINVAL;
+	}
+
+	a->login_keys_workaround = flag;
+	pr_debug("iSCSI_TPG[%hu] - TPG enabled bit for login keys workaround: %s ",
+		tpg->tpgt, (a->login_keys_workaround) ? "ON" : "OFF");
+
+	return 0;
+}
diff --git a/drivers/target/iscsi/iscsi_target_tpg.h b/drivers/target/iscsi/iscsi_target_tpg.h
index ceba29851167..59fd3cabe89d 100644
--- a/drivers/target/iscsi/iscsi_target_tpg.h
+++ b/drivers/target/iscsi/iscsi_target_tpg.h
@@ -48,5 +48,6 @@ extern int iscsit_ta_default_erl(struct iscsi_portal_group *, u32);
 extern int iscsit_ta_t10_pi(struct iscsi_portal_group *, u32);
 extern int iscsit_ta_fabric_prot_type(struct iscsi_portal_group *, u32);
 extern int iscsit_ta_tpg_enabled_sendtargets(struct iscsi_portal_group *, u32);
+extern int iscsit_ta_login_keys_workaround(struct iscsi_portal_group *, u32);
 
 #endif /* ISCSI_TARGET_TPG_H */
diff --git a/drivers/target/iscsi/iscsi_target_util.c b/drivers/target/iscsi/iscsi_target_util.c
index 7d3e2fcc26a0..1e36f83b5961 100644
--- a/drivers/target/iscsi/iscsi_target_util.c
+++ b/drivers/target/iscsi/iscsi_target_util.c
@@ -167,6 +167,7 @@ struct iscsi_cmd *iscsit_allocate_cmd(struct iscsi_conn *conn, int state)
 
 	cmd->se_cmd.map_tag = tag;
 	cmd->conn = conn;
+	cmd->data_direction = DMA_NONE;
 	INIT_LIST_HEAD(&cmd->i_conn_node);
 	INIT_LIST_HEAD(&cmd->datain_list);
 	INIT_LIST_HEAD(&cmd->cmd_r2t_list);
@@ -711,19 +712,16 @@ void iscsit_release_cmd(struct iscsi_cmd *cmd)
 }
 EXPORT_SYMBOL(iscsit_release_cmd);
 
-void __iscsit_free_cmd(struct iscsi_cmd *cmd, bool scsi_cmd,
-		       bool check_queues)
+void __iscsit_free_cmd(struct iscsi_cmd *cmd, bool check_queues)
 {
 	struct iscsi_conn *conn = cmd->conn;
 
-	if (scsi_cmd) {
-		if (cmd->data_direction == DMA_TO_DEVICE) {
-			iscsit_stop_dataout_timer(cmd);
-			iscsit_free_r2ts_from_list(cmd);
-		}
-		if (cmd->data_direction == DMA_FROM_DEVICE)
-			iscsit_free_all_datain_reqs(cmd);
+	if (cmd->data_direction == DMA_TO_DEVICE) {
+		iscsit_stop_dataout_timer(cmd);
+		iscsit_free_r2ts_from_list(cmd);
 	}
+	if (cmd->data_direction == DMA_FROM_DEVICE)
+		iscsit_free_all_datain_reqs(cmd);
 
 	if (conn && check_queues) {
 		iscsit_remove_cmd_from_immediate_queue(cmd, conn);
@@ -736,50 +734,18 @@ void __iscsit_free_cmd(struct iscsi_cmd *cmd, bool scsi_cmd,
 
 void iscsit_free_cmd(struct iscsi_cmd *cmd, bool shutdown)
 {
-	struct se_cmd *se_cmd = NULL;
+	struct se_cmd *se_cmd = cmd->se_cmd.se_tfo ? &cmd->se_cmd : NULL;
 	int rc;
-	bool op_scsi = false;
-	/*
-	 * Determine if a struct se_cmd is associated with
-	 * this struct iscsi_cmd.
-	 */
-	switch (cmd->iscsi_opcode) {
-	case ISCSI_OP_SCSI_CMD:
-		op_scsi = true;
-		/*
-		 * Fallthrough
-		 */
-	case ISCSI_OP_SCSI_TMFUNC:
-		se_cmd = &cmd->se_cmd;
-		__iscsit_free_cmd(cmd, op_scsi, shutdown);
+
+	__iscsit_free_cmd(cmd, shutdown);
+	if (se_cmd) {
 		rc = transport_generic_free_cmd(se_cmd, shutdown);
 		if (!rc && shutdown && se_cmd->se_sess) {
-			__iscsit_free_cmd(cmd, op_scsi, shutdown);
+			__iscsit_free_cmd(cmd, shutdown);
 			target_put_sess_cmd(se_cmd);
 		}
-		break;
-	case ISCSI_OP_REJECT:
-		/*
-		 * Handle special case for REJECT when iscsi_add_reject*() has
-		 * overwritten the original iscsi_opcode assignment, and the
-		 * associated cmd->se_cmd needs to be released.
-		 */
-		if (cmd->se_cmd.se_tfo != NULL) {
-			se_cmd = &cmd->se_cmd;
-			__iscsit_free_cmd(cmd, true, shutdown);
-
-			rc = transport_generic_free_cmd(&cmd->se_cmd, shutdown);
-			if (!rc && shutdown && se_cmd->se_sess) {
-				__iscsit_free_cmd(cmd, true, shutdown);
-				target_put_sess_cmd(se_cmd);
-			}
-			break;
-		}
-		/* Fall-through */
-	default:
-		__iscsit_free_cmd(cmd, false, shutdown);
+	} else {
 		iscsit_release_cmd(cmd);
-		break;
 	}
 }
 EXPORT_SYMBOL(iscsit_free_cmd);
diff --git a/drivers/target/iscsi/iscsi_target_util.h b/drivers/target/iscsi/iscsi_target_util.h
index 9e4197af8708..425160565d0c 100644
--- a/drivers/target/iscsi/iscsi_target_util.h
+++ b/drivers/target/iscsi/iscsi_target_util.h
@@ -37,7 +37,7 @@ extern void iscsit_remove_cmd_from_tx_queues(struct iscsi_cmd *, struct iscsi_co
 extern bool iscsit_conn_all_queues_empty(struct iscsi_conn *);
 extern void iscsit_free_queue_reqs_for_conn(struct iscsi_conn *);
 extern void iscsit_release_cmd(struct iscsi_cmd *);
-extern void __iscsit_free_cmd(struct iscsi_cmd *, bool, bool);
+extern void __iscsit_free_cmd(struct iscsi_cmd *, bool);
 extern void iscsit_free_cmd(struct iscsi_cmd *, bool);
 extern int iscsit_check_session_usage_count(struct iscsi_session *);
 extern void iscsit_dec_session_usage_count(struct iscsi_session *);
diff --git a/drivers/target/loopback/tcm_loop.c b/drivers/target/loopback/tcm_loop.c
index 5091b31b3e56..b6a913e38b30 100644
--- a/drivers/target/loopback/tcm_loop.c
+++ b/drivers/target/loopback/tcm_loop.c
@@ -51,19 +51,7 @@ static int tcm_loop_queue_status(struct se_cmd *se_cmd);
  */
 static int tcm_loop_check_stop_free(struct se_cmd *se_cmd)
 {
-	/*
-	 * Do not release struct se_cmd's containing a valid TMR
-	 * pointer.  These will be released directly in tcm_loop_device_reset()
-	 * with transport_generic_free_cmd().
-	 */
-	if (se_cmd->se_cmd_flags & SCF_SCSI_TMR_CDB)
-		return 0;
-	/*
-	 * Release the struct se_cmd, which will make a callback to release
-	 * struct tcm_loop_cmd * in tcm_loop_deallocate_core_cmd()
-	 */
-	transport_generic_free_cmd(se_cmd, 0);
-	return 1;
+	return transport_generic_free_cmd(se_cmd, 0);
 }
 
 static void tcm_loop_release_cmd(struct se_cmd *se_cmd)
@@ -218,10 +206,8 @@ static int tcm_loop_issue_tmr(struct tcm_loop_tpg *tl_tpg,
 {
 	struct se_cmd *se_cmd = NULL;
 	struct se_session *se_sess;
-	struct se_portal_group *se_tpg;
 	struct tcm_loop_nexus *tl_nexus;
 	struct tcm_loop_cmd *tl_cmd = NULL;
-	struct tcm_loop_tmr *tl_tmr = NULL;
 	int ret = TMR_FUNCTION_FAILED, rc;
 
 	/*
@@ -240,55 +226,29 @@ static int tcm_loop_issue_tmr(struct tcm_loop_tpg *tl_tpg,
 		return ret;
 	}
 
-	tl_tmr = kzalloc(sizeof(struct tcm_loop_tmr), GFP_KERNEL);
-	if (!tl_tmr) {
-		pr_err("Unable to allocate memory for tl_tmr\n");
-		goto release;
-	}
-	init_waitqueue_head(&tl_tmr->tl_tmr_wait);
+	init_completion(&tl_cmd->tmr_done);
 
 	se_cmd = &tl_cmd->tl_se_cmd;
-	se_tpg = &tl_tpg->tl_se_tpg;
 	se_sess = tl_tpg->tl_nexus->se_sess;
-	/*
-	 * Initialize struct se_cmd descriptor from target_core_mod infrastructure
-	 */
-	transport_init_se_cmd(se_cmd, se_tpg->se_tpg_tfo, se_sess, 0,
-				DMA_NONE, TCM_SIMPLE_TAG,
-				&tl_cmd->tl_sense_buf[0]);
 
-	rc = core_tmr_alloc_req(se_cmd, tl_tmr, tmr, GFP_KERNEL);
+	rc = target_submit_tmr(se_cmd, se_sess, tl_cmd->tl_sense_buf, lun,
+			       NULL, tmr, GFP_KERNEL, task,
+			       TARGET_SCF_ACK_KREF);
 	if (rc < 0)
 		goto release;
+	wait_for_completion(&tl_cmd->tmr_done);
+	ret = se_cmd->se_tmr_req->response;
+	target_put_sess_cmd(se_cmd);
 
-	if (tmr == TMR_ABORT_TASK)
-		se_cmd->se_tmr_req->ref_task_tag = task;
+out:
+	return ret;
 
-	/*
-	 * Locate the underlying TCM struct se_lun
-	 */
-	if (transport_lookup_tmr_lun(se_cmd, lun) < 0) {
-		ret = TMR_LUN_DOES_NOT_EXIST;
-		goto release;
-	}
-	/*
-	 * Queue the TMR to TCM Core and sleep waiting for
-	 * tcm_loop_queue_tm_rsp() to wake us up.
-	 */
-	transport_generic_handle_tmr(se_cmd);
-	wait_event(tl_tmr->tl_tmr_wait, atomic_read(&tl_tmr->tmr_complete));
-	/*
-	 * The TMR LUN_RESET has completed, check the response status and
-	 * then release allocations.
-	 */
-	ret = se_cmd->se_tmr_req->response;
 release:
 	if (se_cmd)
-		transport_generic_free_cmd(se_cmd, 1);
+		transport_generic_free_cmd(se_cmd, 0);
 	else
 		kmem_cache_free(tcm_loop_cmd_cache, tl_cmd);
-	kfree(tl_tmr);
-	return ret;
+	goto out;
 }
 
 static int tcm_loop_abort_task(struct scsi_cmnd *sc)
@@ -669,14 +629,11 @@ static int tcm_loop_queue_status(struct se_cmd *se_cmd)
 
 static void tcm_loop_queue_tm_rsp(struct se_cmd *se_cmd)
 {
-	struct se_tmr_req *se_tmr = se_cmd->se_tmr_req;
-	struct tcm_loop_tmr *tl_tmr = se_tmr->fabric_tmr_ptr;
-	/*
-	 * The SCSI EH thread will be sleeping on se_tmr->tl_tmr_wait, go ahead
-	 * and wake up the wait_queue_head_t in tcm_loop_device_reset()
-	 */
-	atomic_set(&tl_tmr->tmr_complete, 1);
-	wake_up(&tl_tmr->tl_tmr_wait);
+	struct tcm_loop_cmd *tl_cmd = container_of(se_cmd,
+				struct tcm_loop_cmd, tl_se_cmd);
+
+	/* Wake up tcm_loop_issue_tmr(). */
+	complete(&tl_cmd->tmr_done);
 }
 
 static void tcm_loop_aborted_task(struct se_cmd *se_cmd)
diff --git a/drivers/target/loopback/tcm_loop.h b/drivers/target/loopback/tcm_loop.h
index a8a230b4e6b5..3acc43c05117 100644
--- a/drivers/target/loopback/tcm_loop.h
+++ b/drivers/target/loopback/tcm_loop.h
@@ -16,15 +16,11 @@ struct tcm_loop_cmd {
 	/* The TCM I/O descriptor that is accessed via container_of() */
 	struct se_cmd tl_se_cmd;
 	struct work_struct work;
+	struct completion tmr_done;
 	/* Sense buffer that will be mapped into outgoing status */
 	unsigned char tl_sense_buf[TRANSPORT_SENSE_BUFFER];
 };
 
-struct tcm_loop_tmr {
-	atomic_t tmr_complete;
-	wait_queue_head_t tl_tmr_wait;
-};
-
 struct tcm_loop_nexus {
 	/*
 	 * Pointer to TCM session for I_T Nexus
diff --git a/drivers/target/target_core_alua.c b/drivers/target/target_core_alua.c
index fc4a9c303d55..a91b7c25ffd4 100644
--- a/drivers/target/target_core_alua.c
+++ b/drivers/target/target_core_alua.c
@@ -205,8 +205,8 @@ target_emulate_report_target_port_groups(struct se_cmd *cmd)
 		/*
 		 * TARGET PORT GROUP
 		 */
-		buf[off++] = ((tg_pt_gp->tg_pt_gp_id >> 8) & 0xff);
-		buf[off++] = (tg_pt_gp->tg_pt_gp_id & 0xff);
+		put_unaligned_be16(tg_pt_gp->tg_pt_gp_id, &buf[off]);
+		off += 2;
 
 		off++; /* Skip over Reserved */
 		/*
@@ -235,8 +235,8 @@ target_emulate_report_target_port_groups(struct se_cmd *cmd)
 			/*
 			 * Set RELATIVE TARGET PORT IDENTIFIER
 			 */
-			buf[off++] = ((lun->lun_rtpi >> 8) & 0xff);
-			buf[off++] = (lun->lun_rtpi & 0xff);
+			put_unaligned_be16(lun->lun_rtpi, &buf[off]);
+			off += 2;
 			rd_len += 4;
 		}
 		spin_unlock(&tg_pt_gp->tg_pt_gp_lock);
diff --git a/drivers/target/target_core_configfs.c b/drivers/target/target_core_configfs.c
index 0326607e5ab8..7e87d952bb7a 100644
--- a/drivers/target/target_core_configfs.c
+++ b/drivers/target/target_core_configfs.c
@@ -1085,6 +1085,24 @@ static ssize_t block_size_store(struct config_item *item,
 	return count;
 }
 
+static ssize_t alua_support_show(struct config_item *item, char *page)
+{
+	struct se_dev_attrib *da = to_attrib(item);
+	u8 flags = da->da_dev->transport->transport_flags;
+
+	return snprintf(page, PAGE_SIZE, "%d\n",
+			flags & TRANSPORT_FLAG_PASSTHROUGH_ALUA ? 0 : 1);
+}
+
+static ssize_t pgr_support_show(struct config_item *item, char *page)
+{
+	struct se_dev_attrib *da = to_attrib(item);
+	u8 flags = da->da_dev->transport->transport_flags;
+
+	return snprintf(page, PAGE_SIZE, "%d\n",
+			flags & TRANSPORT_FLAG_PASSTHROUGH_PGR ? 0 : 1);
+}
+
 CONFIGFS_ATTR(, emulate_model_alias);
 CONFIGFS_ATTR(, emulate_dpo);
 CONFIGFS_ATTR(, emulate_fua_write);
@@ -1116,6 +1134,8 @@ CONFIGFS_ATTR(, unmap_granularity);
 CONFIGFS_ATTR(, unmap_granularity_alignment);
 CONFIGFS_ATTR(, unmap_zeroes_data);
 CONFIGFS_ATTR(, max_write_same_len);
+CONFIGFS_ATTR_RO(, alua_support);
+CONFIGFS_ATTR_RO(, pgr_support);
 
 /*
  * dev_attrib attributes for devices using the target core SBC/SPC
@@ -1154,6 +1174,8 @@ struct configfs_attribute *sbc_attrib_attrs[] = {
 	&attr_unmap_granularity_alignment,
 	&attr_unmap_zeroes_data,
 	&attr_max_write_same_len,
+	&attr_alua_support,
+	&attr_pgr_support,
 	NULL,
 };
 EXPORT_SYMBOL(sbc_attrib_attrs);
@@ -1168,6 +1190,8 @@ struct configfs_attribute *passthrough_attrib_attrs[] = {
 	&attr_hw_block_size,
 	&attr_hw_max_sectors,
 	&attr_hw_queue_depth,
+	&attr_alua_support,
+	&attr_pgr_support,
 	NULL,
 };
 EXPORT_SYMBOL(passthrough_attrib_attrs);
@@ -2236,7 +2260,11 @@ static void target_core_dev_release(struct config_item *item)
 	target_free_device(dev);
 }
 
-static struct configfs_item_operations target_core_dev_item_ops = {
+/*
+ * Used in target_core_fabric_configfs.c to verify valid se_device symlink
+ * within target_fabric_port_link()
+ */
+struct configfs_item_operations target_core_dev_item_ops = {
 	.release		= target_core_dev_release,
 };
 
diff --git a/drivers/target/target_core_device.c b/drivers/target/target_core_device.c
index 8add07f387f9..e8dd6da164b2 100644
--- a/drivers/target/target_core_device.c
+++ b/drivers/target/target_core_device.c
@@ -49,8 +49,9 @@
 #include "target_core_pr.h"
 #include "target_core_ua.h"
 
-DEFINE_MUTEX(g_device_mutex);
-LIST_HEAD(g_device_list);
+static DEFINE_MUTEX(device_mutex);
+static LIST_HEAD(device_list);
+static DEFINE_IDR(devices_idr);
 
 static struct se_hba *lun0_hba;
 /* not static, needed by tpg.c */
@@ -168,11 +169,20 @@ int transport_lookup_tmr_lun(struct se_cmd *se_cmd, u64 unpacked_lun)
 	rcu_read_lock();
 	deve = target_nacl_find_deve(nacl, unpacked_lun);
 	if (deve) {
-		se_cmd->se_lun = rcu_dereference(deve->se_lun);
 		se_lun = rcu_dereference(deve->se_lun);
+
+		if (!percpu_ref_tryget_live(&se_lun->lun_ref)) {
+			se_lun = NULL;
+			goto out_unlock;
+		}
+
+		se_cmd->se_lun = rcu_dereference(deve->se_lun);
 		se_cmd->pr_res_key = deve->pr_res_key;
 		se_cmd->orig_fe_lun = unpacked_lun;
+		se_cmd->se_cmd_flags |= SCF_SE_LUN_CMD;
+		se_cmd->lun_ref_active = true;
 	}
+out_unlock:
 	rcu_read_unlock();
 
 	if (!se_lun) {
@@ -182,9 +192,6 @@ int transport_lookup_tmr_lun(struct se_cmd *se_cmd, u64 unpacked_lun)
 			unpacked_lun);
 		return -ENODEV;
 	}
-	/*
-	 * XXX: Add percpu se_lun->lun_ref reference count for TMR
-	 */
 	se_cmd->se_dev = rcu_dereference_raw(se_lun->lun_se_dev);
 	se_tmr->tmr_dev = rcu_dereference_raw(se_lun->lun_se_dev);
 
@@ -756,19 +763,16 @@ struct se_device *target_alloc_device(struct se_hba *hba, const char *name)
 	if (!dev)
 		return NULL;
 
-	dev->dev_link_magic = SE_DEV_LINK_MAGIC;
 	dev->se_hba = hba;
 	dev->transport = hba->backend->ops;
 	dev->prot_length = sizeof(struct t10_pi_tuple);
 	dev->hba_index = hba->hba_index;
 
-	INIT_LIST_HEAD(&dev->dev_list);
 	INIT_LIST_HEAD(&dev->dev_sep_list);
 	INIT_LIST_HEAD(&dev->dev_tmr_list);
 	INIT_LIST_HEAD(&dev->delayed_cmd_list);
 	INIT_LIST_HEAD(&dev->state_list);
 	INIT_LIST_HEAD(&dev->qf_cmd_list);
-	INIT_LIST_HEAD(&dev->g_dev_node);
 	spin_lock_init(&dev->execute_task_lock);
 	spin_lock_init(&dev->delayed_cmd_lock);
 	spin_lock_init(&dev->dev_reservation_lock);
@@ -851,7 +855,7 @@ bool target_configure_unmap_from_queue(struct se_dev_attrib *attrib,
 	attrib->unmap_granularity = q->limits.discard_granularity / block_size;
 	attrib->unmap_granularity_alignment = q->limits.discard_alignment /
 								block_size;
-	attrib->unmap_zeroes_data = 0;
+	attrib->unmap_zeroes_data = (q->limits.max_write_zeroes_sectors);
 	return true;
 }
 EXPORT_SYMBOL(target_configure_unmap_from_queue);
@@ -875,10 +879,79 @@ sector_t target_to_linux_sector(struct se_device *dev, sector_t lb)
 }
 EXPORT_SYMBOL(target_to_linux_sector);
 
+/**
+ * target_find_device - find a se_device by its dev_index
+ * @id: dev_index
+ * @do_depend: true if caller needs target_depend_item to be done
+ *
+ * If do_depend is true, the caller must do a target_undepend_item
+ * when finished using the device.
+ *
+ * If do_depend is false, the caller must be called in a configfs
+ * callback or during removal.
+ */
+struct se_device *target_find_device(int id, bool do_depend)
+{
+	struct se_device *dev;
+
+	mutex_lock(&device_mutex);
+	dev = idr_find(&devices_idr, id);
+	if (dev && do_depend && target_depend_item(&dev->dev_group.cg_item))
+		dev = NULL;
+	mutex_unlock(&device_mutex);
+	return dev;
+}
+EXPORT_SYMBOL(target_find_device);
+
+struct devices_idr_iter {
+	int (*fn)(struct se_device *dev, void *data);
+	void *data;
+};
+
+static int target_devices_idr_iter(int id, void *p, void *data)
+{
+	struct devices_idr_iter *iter = data;
+	struct se_device *dev = p;
+
+	/*
+	 * We add the device early to the idr, so it can be used
+	 * by backend modules during configuration. We do not want
+	 * to allow other callers to access partially setup devices,
+	 * so we skip them here.
+	 */
+	if (!(dev->dev_flags & DF_CONFIGURED))
+		return 0;
+
+	return iter->fn(dev, iter->data);
+}
+
+/**
+ * target_for_each_device - iterate over configured devices
+ * @fn: iterator function
+ * @data: pointer to data that will be passed to fn
+ *
+ * fn must return 0 to continue looping over devices. non-zero will break
+ * from the loop and return that value to the caller.
+ */
+int target_for_each_device(int (*fn)(struct se_device *dev, void *data),
+			   void *data)
+{
+	struct devices_idr_iter iter;
+	int ret;
+
+	iter.fn = fn;
+	iter.data = data;
+
+	mutex_lock(&device_mutex);
+	ret = idr_for_each(&devices_idr, target_devices_idr_iter, &iter);
+	mutex_unlock(&device_mutex);
+	return ret;
+}
+
 int target_configure_device(struct se_device *dev)
 {
 	struct se_hba *hba = dev->se_hba;
-	int ret;
+	int ret, id;
 
 	if (dev->dev_flags & DF_CONFIGURED) {
 		pr_err("se_dev->se_dev_ptr already set for storage"
@@ -886,9 +959,26 @@ int target_configure_device(struct se_device *dev)
 		return -EEXIST;
 	}
 
+	/*
+	 * Add early so modules like tcmu can use during its
+	 * configuration.
+	 */
+	mutex_lock(&device_mutex);
+	/*
+	 * Use cyclic to try and avoid collisions with devices
+	 * that were recently removed.
+	 */
+	id = idr_alloc_cyclic(&devices_idr, dev, 0, INT_MAX, GFP_KERNEL);
+	mutex_unlock(&device_mutex);
+	if (id < 0) {
+		ret = -ENOMEM;
+		goto out;
+	}
+	dev->dev_index = id;
+
 	ret = dev->transport->configure_device(dev);
 	if (ret)
-		goto out;
+		goto out_free_index;
 	/*
 	 * XXX: there is not much point to have two different values here..
 	 */
@@ -903,12 +993,11 @@ int target_configure_device(struct se_device *dev)
 					 dev->dev_attrib.hw_block_size);
 	dev->dev_attrib.optimal_sectors = dev->dev_attrib.hw_max_sectors;
 
-	dev->dev_index = scsi_get_new_index(SCSI_DEVICE_INDEX);
 	dev->creation_time = get_jiffies_64();
 
 	ret = core_setup_alua(dev);
 	if (ret)
-		goto out;
+		goto out_free_index;
 
 	/*
 	 * Startup the struct se_device processing thread
@@ -946,16 +1035,16 @@ int target_configure_device(struct se_device *dev)
 	hba->dev_count++;
 	spin_unlock(&hba->device_lock);
 
-	mutex_lock(&g_device_mutex);
-	list_add_tail(&dev->g_dev_node, &g_device_list);
-	mutex_unlock(&g_device_mutex);
-
 	dev->dev_flags |= DF_CONFIGURED;
 
 	return 0;
 
 out_free_alua:
 	core_alua_free_lu_gp_mem(dev);
+out_free_index:
+	mutex_lock(&device_mutex);
+	idr_remove(&devices_idr, dev->dev_index);
+	mutex_unlock(&device_mutex);
 out:
 	se_release_vpd_for_dev(dev);
 	return ret;
@@ -970,9 +1059,11 @@ void target_free_device(struct se_device *dev)
 	if (dev->dev_flags & DF_CONFIGURED) {
 		destroy_workqueue(dev->tmr_wq);
 
-		mutex_lock(&g_device_mutex);
-		list_del(&dev->g_dev_node);
-		mutex_unlock(&g_device_mutex);
+		dev->transport->destroy_device(dev);
+
+		mutex_lock(&device_mutex);
+		idr_remove(&devices_idr, dev->dev_index);
+		mutex_unlock(&device_mutex);
 
 		spin_lock(&hba->device_lock);
 		hba->dev_count--;
@@ -1087,19 +1178,19 @@ passthrough_parse_cdb(struct se_cmd *cmd,
 	      TRANSPORT_FLAG_PASSTHROUGH_PGR)) {
 		if (cdb[0] == PERSISTENT_RESERVE_IN) {
 			cmd->execute_cmd = target_scsi3_emulate_pr_in;
-			size = (cdb[7] << 8) + cdb[8];
+			size = get_unaligned_be16(&cdb[7]);
 			return target_cmd_size_check(cmd, size);
 		}
 		if (cdb[0] == PERSISTENT_RESERVE_OUT) {
 			cmd->execute_cmd = target_scsi3_emulate_pr_out;
-			size = (cdb[7] << 8) + cdb[8];
+			size = get_unaligned_be32(&cdb[5]);
 			return target_cmd_size_check(cmd, size);
 		}
 
 		if (cdb[0] == RELEASE || cdb[0] == RELEASE_10) {
 			cmd->execute_cmd = target_scsi2_reservation_release;
 			if (cdb[0] == RELEASE_10)
-				size = (cdb[7] << 8) | cdb[8];
+				size = get_unaligned_be16(&cdb[7]);
 			else
 				size = cmd->data_length;
 			return target_cmd_size_check(cmd, size);
@@ -1107,7 +1198,7 @@ passthrough_parse_cdb(struct se_cmd *cmd,
 		if (cdb[0] == RESERVE || cdb[0] == RESERVE_10) {
 			cmd->execute_cmd = target_scsi2_reservation_reserve;
 			if (cdb[0] == RESERVE_10)
-				size = (cdb[7] << 8) | cdb[8];
+				size = get_unaligned_be16(&cdb[7]);
 			else
 				size = cmd->data_length;
 			return target_cmd_size_check(cmd, size);
@@ -1126,7 +1217,7 @@ passthrough_parse_cdb(struct se_cmd *cmd,
 	case WRITE_16:
 	case WRITE_VERIFY:
 	case WRITE_VERIFY_12:
-	case 0x8e: /* WRITE_VERIFY_16 */
+	case WRITE_VERIFY_16:
 	case COMPARE_AND_WRITE:
 	case XDWRITEREAD_10:
 		cmd->se_cmd_flags |= SCF_SCSI_DATA_CDB;
@@ -1135,7 +1226,7 @@ passthrough_parse_cdb(struct se_cmd *cmd,
 		switch (get_unaligned_be16(&cdb[8])) {
 		case READ_32:
 		case WRITE_32:
-		case 0x0c: /* WRITE_VERIFY_32 */
+		case WRITE_VERIFY_32:
 		case XDWRITEREAD_32:
 			cmd->se_cmd_flags |= SCF_SCSI_DATA_CDB;
 			break;
diff --git a/drivers/target/target_core_fabric_configfs.c b/drivers/target/target_core_fabric_configfs.c
index d1e6cab8e3d3..e9e917cc6441 100644
--- a/drivers/target/target_core_fabric_configfs.c
+++ b/drivers/target/target_core_fabric_configfs.c
@@ -65,6 +65,8 @@ static void target_fabric_setup_##_name##_cit(struct target_fabric_configfs *tf)
 	pr_debug("Setup generic %s\n", __stringify(_name));		\
 }
 
+static struct configfs_item_operations target_fabric_port_item_ops;
+
 /* Start of tfc_tpg_mappedlun_cit */
 
 static int target_fabric_mappedlun_link(
@@ -72,19 +74,20 @@ static int target_fabric_mappedlun_link(
 	struct config_item *lun_ci)
 {
 	struct se_dev_entry *deve;
-	struct se_lun *lun = container_of(to_config_group(lun_ci),
-			struct se_lun, lun_group);
+	struct se_lun *lun;
 	struct se_lun_acl *lacl = container_of(to_config_group(lun_acl_ci),
 			struct se_lun_acl, se_lun_group);
 	struct se_portal_group *se_tpg;
 	struct config_item *nacl_ci, *tpg_ci, *tpg_ci_s, *wwn_ci, *wwn_ci_s;
 	bool lun_access_ro;
 
-	if (lun->lun_link_magic != SE_LUN_LINK_MAGIC) {
-		pr_err("Bad lun->lun_link_magic, not a valid lun_ci pointer:"
-			" %p to struct lun: %p\n", lun_ci, lun);
+	if (!lun_ci->ci_type ||
+	    lun_ci->ci_type->ct_item_ops != &target_fabric_port_item_ops) {
+		pr_err("Bad lun_ci, not a valid lun_ci pointer: %p\n", lun_ci);
 		return -EFAULT;
 	}
+	lun = container_of(to_config_group(lun_ci), struct se_lun, lun_group);
+
 	/*
 	 * Ensure that the source port exists
 	 */
@@ -620,6 +623,8 @@ static struct configfs_attribute *target_fabric_port_attrs[] = {
 	NULL,
 };
 
+extern struct configfs_item_operations target_core_dev_item_ops;
+
 static int target_fabric_port_link(
 	struct config_item *lun_ci,
 	struct config_item *se_dev_ci)
@@ -628,16 +633,16 @@ static int target_fabric_port_link(
 	struct se_lun *lun = container_of(to_config_group(lun_ci),
 				struct se_lun, lun_group);
 	struct se_portal_group *se_tpg;
-	struct se_device *dev =
-		container_of(to_config_group(se_dev_ci), struct se_device, dev_group);
+	struct se_device *dev;
 	struct target_fabric_configfs *tf;
 	int ret;
 
-	if (dev->dev_link_magic != SE_DEV_LINK_MAGIC) {
-		pr_err("Bad dev->dev_link_magic, not a valid se_dev_ci pointer:"
-			" %p to struct se_device: %p\n", se_dev_ci, dev);
+	if (!se_dev_ci->ci_type ||
+	    se_dev_ci->ci_type->ct_item_ops != &target_core_dev_item_ops) {
+		pr_err("Bad se_dev_ci, not a valid se_dev_ci pointer: %p\n", se_dev_ci);
 		return -EFAULT;
 	}
+	dev = container_of(to_config_group(se_dev_ci), struct se_device, dev_group);
 
 	if (!(dev->dev_flags & DF_CONFIGURED)) {
 		pr_err("se_device not configured yet, cannot port link\n");
diff --git a/drivers/target/target_core_fabric_lib.c b/drivers/target/target_core_fabric_lib.c
index cb6497ce4b61..508da345b73f 100644
--- a/drivers/target/target_core_fabric_lib.c
+++ b/drivers/target/target_core_fabric_lib.c
@@ -34,6 +34,7 @@
 #include <linux/ctype.h>
 #include <linux/spinlock.h>
 #include <linux/export.h>
+#include <asm/unaligned.h>
 
 #include <scsi/scsi_proto.h>
 
@@ -216,8 +217,7 @@ static int iscsi_get_pr_transport_id(
 	if (padding != 0)
 		len += padding;
 
-	buf[2] = ((len >> 8) & 0xff);
-	buf[3] = (len & 0xff);
+	put_unaligned_be16(len, &buf[2]);
 	/*
 	 * Increment value for total payload + header length for
 	 * full status descriptor
@@ -306,7 +306,7 @@ static char *iscsi_parse_pr_out_transport_id(
 	 */
 	if (out_tid_len) {
 		/* The shift works thanks to integer promotion rules */
-		add_len = (buf[2] << 8) | buf[3];
+		add_len = get_unaligned_be16(&buf[2]);
 
 		tid_len = strlen(&buf[4]);
 		tid_len += 4; /* Add four bytes for iSCSI Transport ID header */
diff --git a/drivers/target/target_core_file.c b/drivers/target/target_core_file.c
index e921948415c7..24cf11d9e50a 100644
--- a/drivers/target/target_core_file.c
+++ b/drivers/target/target_core_file.c
@@ -237,13 +237,17 @@ static void fd_dev_call_rcu(struct rcu_head *p)
 
 static void fd_free_device(struct se_device *dev)
 {
+	call_rcu(&dev->rcu_head, fd_dev_call_rcu);
+}
+
+static void fd_destroy_device(struct se_device *dev)
+{
 	struct fd_dev *fd_dev = FD_DEV(dev);
 
 	if (fd_dev->fd_file) {
 		filp_close(fd_dev->fd_file, NULL);
 		fd_dev->fd_file = NULL;
 	}
-	call_rcu(&dev->rcu_head, fd_dev_call_rcu);
 }
 
 static int fd_do_rw(struct se_cmd *cmd, struct file *fd,
@@ -826,6 +830,7 @@ static const struct target_backend_ops fileio_ops = {
 	.detach_hba		= fd_detach_hba,
 	.alloc_device		= fd_alloc_device,
 	.configure_device	= fd_configure_device,
+	.destroy_device		= fd_destroy_device,
 	.free_device		= fd_free_device,
 	.parse_cdb		= fd_parse_cdb,
 	.set_configfs_dev_params = fd_set_configfs_dev_params,
diff --git a/drivers/target/target_core_iblock.c b/drivers/target/target_core_iblock.c
index c05d38016556..ee7c7fa55dad 100644
--- a/drivers/target/target_core_iblock.c
+++ b/drivers/target/target_core_iblock.c
@@ -86,6 +86,7 @@ static int iblock_configure_device(struct se_device *dev)
 	struct block_device *bd = NULL;
 	struct blk_integrity *bi;
 	fmode_t mode;
+	unsigned int max_write_zeroes_sectors;
 	int ret = -ENOMEM;
 
 	if (!(ib_dev->ibd_flags & IBDF_HAS_UDEV_PATH)) {
@@ -129,7 +130,11 @@ static int iblock_configure_device(struct se_device *dev)
 	 * Enable write same emulation for IBLOCK and use 0xFFFF as
 	 * the smaller WRITE_SAME(10) only has a two-byte block count.
 	 */
-	dev->dev_attrib.max_write_same_len = 0xFFFF;
+	max_write_zeroes_sectors = bdev_write_zeroes_sectors(bd);
+	if (max_write_zeroes_sectors)
+		dev->dev_attrib.max_write_same_len = max_write_zeroes_sectors;
+	else
+		dev->dev_attrib.max_write_same_len = 0xFFFF;
 
 	if (blk_queue_nonrot(q))
 		dev->dev_attrib.is_nonrot = 1;
@@ -185,14 +190,17 @@ static void iblock_dev_call_rcu(struct rcu_head *p)
 
 static void iblock_free_device(struct se_device *dev)
 {
+	call_rcu(&dev->rcu_head, iblock_dev_call_rcu);
+}
+
+static void iblock_destroy_device(struct se_device *dev)
+{
 	struct iblock_dev *ib_dev = IBLOCK_DEV(dev);
 
 	if (ib_dev->ibd_bd != NULL)
 		blkdev_put(ib_dev->ibd_bd, FMODE_WRITE|FMODE_READ|FMODE_EXCL);
 	if (ib_dev->ibd_bio_set != NULL)
 		bioset_free(ib_dev->ibd_bio_set);
-
-	call_rcu(&dev->rcu_head, iblock_dev_call_rcu);
 }
 
 static unsigned long long iblock_emulate_read_cap_with_block_size(
@@ -415,28 +423,31 @@ iblock_execute_unmap(struct se_cmd *cmd, sector_t lba, sector_t nolb)
 }
 
 static sense_reason_t
-iblock_execute_write_same_direct(struct block_device *bdev, struct se_cmd *cmd)
+iblock_execute_zero_out(struct block_device *bdev, struct se_cmd *cmd)
 {
 	struct se_device *dev = cmd->se_dev;
 	struct scatterlist *sg = &cmd->t_data_sg[0];
-	struct page *page = NULL;
-	int ret;
+	unsigned char *buf, zero = 0x00, *p = &zero;
+	int rc, ret;
 
-	if (sg->offset) {
-		page = alloc_page(GFP_KERNEL);
-		if (!page)
-			return TCM_OUT_OF_RESOURCES;
-		sg_copy_to_buffer(sg, cmd->t_data_nents, page_address(page),
-				  dev->dev_attrib.block_size);
-	}
+	buf = kmap(sg_page(sg)) + sg->offset;
+	if (!buf)
+		return TCM_LOGICAL_UNIT_COMMUNICATION_FAILURE;
+	/*
+	 * Fall back to block_execute_write_same() slow-path if
+	 * incoming WRITE_SAME payload does not contain zeros.
+	 */
+	rc = memcmp(buf, p, cmd->data_length);
+	kunmap(sg_page(sg));
 
-	ret = blkdev_issue_write_same(bdev,
+	if (rc)
+		return TCM_LOGICAL_UNIT_COMMUNICATION_FAILURE;
+
+	ret = blkdev_issue_zeroout(bdev,
 				target_to_linux_sector(dev, cmd->t_task_lba),
 				target_to_linux_sector(dev,
 					sbc_get_write_same_sectors(cmd)),
-				GFP_KERNEL, page ? page : sg_page(sg));
-	if (page)
-		__free_page(page);
+				GFP_KERNEL, false);
 	if (ret)
 		return TCM_LOGICAL_UNIT_COMMUNICATION_FAILURE;
 
@@ -472,8 +483,10 @@ iblock_execute_write_same(struct se_cmd *cmd)
 		return TCM_INVALID_CDB_FIELD;
 	}
 
-	if (bdev_write_same(bdev))
-		return iblock_execute_write_same_direct(bdev, cmd);
+	if (bdev_write_zeroes_sectors(bdev)) {
+		if (!iblock_execute_zero_out(bdev, cmd))
+			return 0;
+	}
 
 	ibr = kzalloc(sizeof(struct iblock_req), GFP_KERNEL);
 	if (!ibr)
@@ -848,6 +861,7 @@ static const struct target_backend_ops iblock_ops = {
 	.detach_hba		= iblock_detach_hba,
 	.alloc_device		= iblock_alloc_device,
 	.configure_device	= iblock_configure_device,
+	.destroy_device		= iblock_destroy_device,
 	.free_device		= iblock_free_device,
 	.parse_cdb		= iblock_parse_cdb,
 	.set_configfs_dev_params = iblock_set_configfs_dev_params,
diff --git a/drivers/target/target_core_internal.h b/drivers/target/target_core_internal.h
index 0912de7c0cf8..f30e8ac13386 100644
--- a/drivers/target/target_core_internal.h
+++ b/drivers/target/target_core_internal.h
@@ -56,9 +56,6 @@ struct target_fabric_configfs {
 extern struct t10_alua_lu_gp *default_lu_gp;
 
 /* target_core_device.c */
-extern struct mutex g_device_mutex;
-extern struct list_head g_device_list;
-
 int	core_alloc_rtpi(struct se_lun *lun, struct se_device *dev);
 struct se_dev_entry *core_get_se_deve_from_rtpi(struct se_node_acl *, u16);
 void	target_pr_kref_release(struct kref *);
@@ -87,6 +84,8 @@ void	core_dev_release_virtual_lun0(void);
 struct se_device *target_alloc_device(struct se_hba *hba, const char *name);
 int	target_configure_device(struct se_device *dev);
 void	target_free_device(struct se_device *);
+int	target_for_each_device(int (*fn)(struct se_device *dev, void *data),
+			       void *data);
 
 /* target_core_configfs.c */
 void	target_setup_backend_cits(struct target_backend *);
diff --git a/drivers/target/target_core_pr.c b/drivers/target/target_core_pr.c
index 129ca572673c..6d5def64db61 100644
--- a/drivers/target/target_core_pr.c
+++ b/drivers/target/target_core_pr.c
@@ -1562,10 +1562,7 @@ core_scsi3_decode_spec_i_port(
 	 * first extract TransportID Parameter Data Length, and make sure
 	 * the value matches up to the SCSI expected data transfer length.
 	 */
-	tpdl = (buf[24] & 0xff) << 24;
-	tpdl |= (buf[25] & 0xff) << 16;
-	tpdl |= (buf[26] & 0xff) << 8;
-	tpdl |= buf[27] & 0xff;
+	tpdl = get_unaligned_be32(&buf[24]);
 
 	if ((tpdl + 28) != cmd->data_length) {
 		pr_err("SPC-3 PR: Illegal tpdl: %u + 28 byte header"
@@ -3221,12 +3218,8 @@ core_scsi3_emulate_pro_register_and_move(struct se_cmd *cmd, u64 res_key,
 		goto out_put_pr_reg;
 	}
 
-	rtpi = (buf[18] & 0xff) << 8;
-	rtpi |= buf[19] & 0xff;
-	tid_len = (buf[20] & 0xff) << 24;
-	tid_len |= (buf[21] & 0xff) << 16;
-	tid_len |= (buf[22] & 0xff) << 8;
-	tid_len |= buf[23] & 0xff;
+	rtpi = get_unaligned_be16(&buf[18]);
+	tid_len = get_unaligned_be32(&buf[20]);
 	transport_kunmap_data_sg(cmd);
 	buf = NULL;
 
@@ -3552,16 +3545,6 @@ out_put_pr_reg:
 	return ret;
 }
 
-static unsigned long long core_scsi3_extract_reservation_key(unsigned char *cdb)
-{
-	unsigned int __v1, __v2;
-
-	__v1 = (cdb[0] << 24) | (cdb[1] << 16) | (cdb[2] << 8) | cdb[3];
-	__v2 = (cdb[4] << 24) | (cdb[5] << 16) | (cdb[6] << 8) | cdb[7];
-
-	return ((unsigned long long)__v2) | (unsigned long long)__v1 << 32;
-}
-
 /*
  * See spc4r17 section 6.14 Table 170
  */
@@ -3602,7 +3585,7 @@ target_scsi3_emulate_pr_out(struct se_cmd *cmd)
 	if (cmd->data_length < 24) {
 		pr_warn("SPC-PR: Received PR OUT parameter list"
 			" length too small: %u\n", cmd->data_length);
-		return TCM_INVALID_PARAMETER_LIST;
+		return TCM_PARAMETER_LIST_LENGTH_ERROR;
 	}
 
 	/*
@@ -3619,8 +3602,8 @@ target_scsi3_emulate_pr_out(struct se_cmd *cmd)
 	/*
 	 * From PERSISTENT_RESERVE_OUT parameter list (payload)
 	 */
-	res_key = core_scsi3_extract_reservation_key(&buf[0]);
-	sa_res_key = core_scsi3_extract_reservation_key(&buf[8]);
+	res_key = get_unaligned_be64(&buf[0]);
+	sa_res_key = get_unaligned_be64(&buf[8]);
 	/*
 	 * REGISTER_AND_MOVE uses a different SA parameter list containing
 	 * SCSI TransportIDs.
@@ -3646,7 +3629,7 @@ target_scsi3_emulate_pr_out(struct se_cmd *cmd)
 	/*
 	 * SPEC_I_PT=1 is only valid for Service action: REGISTER
 	 */
-	if (spec_i_pt && ((cdb[1] & 0x1f) != PRO_REGISTER))
+	if (spec_i_pt && (sa != PRO_REGISTER))
 		return TCM_INVALID_PARAMETER_LIST;
 
 	/*
@@ -3658,11 +3641,11 @@ target_scsi3_emulate_pr_out(struct se_cmd *cmd)
 	 * the sense key set to ILLEGAL REQUEST, and the additional sense
 	 * code set to PARAMETER LIST LENGTH ERROR.
 	 */
-	if (!spec_i_pt && ((cdb[1] & 0x1f) != PRO_REGISTER_AND_MOVE) &&
+	if (!spec_i_pt && (sa != PRO_REGISTER_AND_MOVE) &&
 	    (cmd->data_length != 24)) {
 		pr_warn("SPC-PR: Received PR OUT illegal parameter"
 			" list length: %u\n", cmd->data_length);
-		return TCM_INVALID_PARAMETER_LIST;
+		return TCM_PARAMETER_LIST_LENGTH_ERROR;
 	}
 
 	/*
@@ -3702,7 +3685,7 @@ target_scsi3_emulate_pr_out(struct se_cmd *cmd)
 		break;
 	default:
 		pr_err("Unknown PERSISTENT_RESERVE_OUT service"
-			" action: 0x%02x\n", cdb[1] & 0x1f);
+			" action: 0x%02x\n", sa);
 		return TCM_INVALID_CDB_FIELD;
 	}
 
@@ -3734,10 +3717,7 @@ core_scsi3_pri_read_keys(struct se_cmd *cmd)
 	if (!buf)
 		return TCM_LOGICAL_UNIT_COMMUNICATION_FAILURE;
 
-	buf[0] = ((dev->t10_pr.pr_generation >> 24) & 0xff);
-	buf[1] = ((dev->t10_pr.pr_generation >> 16) & 0xff);
-	buf[2] = ((dev->t10_pr.pr_generation >> 8) & 0xff);
-	buf[3] = (dev->t10_pr.pr_generation & 0xff);
+	put_unaligned_be32(dev->t10_pr.pr_generation, buf);
 
 	spin_lock(&dev->t10_pr.registration_lock);
 	list_for_each_entry(pr_reg, &dev->t10_pr.registration_list,
@@ -3749,23 +3729,13 @@ core_scsi3_pri_read_keys(struct se_cmd *cmd)
 		if ((add_len + 8) > (cmd->data_length - 8))
 			break;
 
-		buf[off++] = ((pr_reg->pr_res_key >> 56) & 0xff);
-		buf[off++] = ((pr_reg->pr_res_key >> 48) & 0xff);
-		buf[off++] = ((pr_reg->pr_res_key >> 40) & 0xff);
-		buf[off++] = ((pr_reg->pr_res_key >> 32) & 0xff);
-		buf[off++] = ((pr_reg->pr_res_key >> 24) & 0xff);
-		buf[off++] = ((pr_reg->pr_res_key >> 16) & 0xff);
-		buf[off++] = ((pr_reg->pr_res_key >> 8) & 0xff);
-		buf[off++] = (pr_reg->pr_res_key & 0xff);
-
+		put_unaligned_be64(pr_reg->pr_res_key, &buf[off]);
+		off += 8;
 		add_len += 8;
 	}
 	spin_unlock(&dev->t10_pr.registration_lock);
 
-	buf[4] = ((add_len >> 24) & 0xff);
-	buf[5] = ((add_len >> 16) & 0xff);
-	buf[6] = ((add_len >> 8) & 0xff);
-	buf[7] = (add_len & 0xff);
+	put_unaligned_be32(add_len, &buf[4]);
 
 	transport_kunmap_data_sg(cmd);
 
@@ -3796,10 +3766,7 @@ core_scsi3_pri_read_reservation(struct se_cmd *cmd)
 	if (!buf)
 		return TCM_LOGICAL_UNIT_COMMUNICATION_FAILURE;
 
-	buf[0] = ((dev->t10_pr.pr_generation >> 24) & 0xff);
-	buf[1] = ((dev->t10_pr.pr_generation >> 16) & 0xff);
-	buf[2] = ((dev->t10_pr.pr_generation >> 8) & 0xff);
-	buf[3] = (dev->t10_pr.pr_generation & 0xff);
+	put_unaligned_be32(dev->t10_pr.pr_generation, &buf[0]);
 
 	spin_lock(&dev->dev_reservation_lock);
 	pr_reg = dev->dev_pr_res_holder;
@@ -3807,10 +3774,7 @@ core_scsi3_pri_read_reservation(struct se_cmd *cmd)
 		/*
 		 * Set the hardcoded Additional Length
 		 */
-		buf[4] = ((add_len >> 24) & 0xff);
-		buf[5] = ((add_len >> 16) & 0xff);
-		buf[6] = ((add_len >> 8) & 0xff);
-		buf[7] = (add_len & 0xff);
+		put_unaligned_be32(add_len, &buf[4]);
 
 		if (cmd->data_length < 22)
 			goto err;
@@ -3837,14 +3801,7 @@ core_scsi3_pri_read_reservation(struct se_cmd *cmd)
 		else
 			pr_res_key = pr_reg->pr_res_key;
 
-		buf[8] = ((pr_res_key >> 56) & 0xff);
-		buf[9] = ((pr_res_key >> 48) & 0xff);
-		buf[10] = ((pr_res_key >> 40) & 0xff);
-		buf[11] = ((pr_res_key >> 32) & 0xff);
-		buf[12] = ((pr_res_key >> 24) & 0xff);
-		buf[13] = ((pr_res_key >> 16) & 0xff);
-		buf[14] = ((pr_res_key >> 8) & 0xff);
-		buf[15] = (pr_res_key & 0xff);
+		put_unaligned_be64(pr_res_key, &buf[8]);
 		/*
 		 * Set the SCOPE and TYPE
 		 */
@@ -3882,8 +3839,7 @@ core_scsi3_pri_report_capabilities(struct se_cmd *cmd)
 	if (!buf)
 		return TCM_LOGICAL_UNIT_COMMUNICATION_FAILURE;
 
-	buf[0] = ((add_len >> 8) & 0xff);
-	buf[1] = (add_len & 0xff);
+	put_unaligned_be16(add_len, &buf[0]);
 	buf[2] |= 0x10; /* CRH: Compatible Reservation Hanlding bit. */
 	buf[2] |= 0x08; /* SIP_C: Specify Initiator Ports Capable bit */
 	buf[2] |= 0x04; /* ATP_C: All Target Ports Capable bit */
@@ -3947,10 +3903,7 @@ core_scsi3_pri_read_full_status(struct se_cmd *cmd)
 	if (!buf)
 		return TCM_LOGICAL_UNIT_COMMUNICATION_FAILURE;
 
-	buf[0] = ((dev->t10_pr.pr_generation >> 24) & 0xff);
-	buf[1] = ((dev->t10_pr.pr_generation >> 16) & 0xff);
-	buf[2] = ((dev->t10_pr.pr_generation >> 8) & 0xff);
-	buf[3] = (dev->t10_pr.pr_generation & 0xff);
+	put_unaligned_be32(dev->t10_pr.pr_generation, &buf[0]);
 
 	spin_lock(&dev->dev_reservation_lock);
 	if (dev->dev_pr_res_holder) {
@@ -3992,14 +3945,8 @@ core_scsi3_pri_read_full_status(struct se_cmd *cmd)
 		/*
 		 * Set RESERVATION KEY
 		 */
-		buf[off++] = ((pr_reg->pr_res_key >> 56) & 0xff);
-		buf[off++] = ((pr_reg->pr_res_key >> 48) & 0xff);
-		buf[off++] = ((pr_reg->pr_res_key >> 40) & 0xff);
-		buf[off++] = ((pr_reg->pr_res_key >> 32) & 0xff);
-		buf[off++] = ((pr_reg->pr_res_key >> 24) & 0xff);
-		buf[off++] = ((pr_reg->pr_res_key >> 16) & 0xff);
-		buf[off++] = ((pr_reg->pr_res_key >> 8) & 0xff);
-		buf[off++] = (pr_reg->pr_res_key & 0xff);
+		put_unaligned_be64(pr_reg->pr_res_key, &buf[off]);
+		off += 8;
 		off += 4; /* Skip Over Reserved area */
 
 		/*
@@ -4041,8 +3988,8 @@ core_scsi3_pri_read_full_status(struct se_cmd *cmd)
 		if (!pr_reg->pr_reg_all_tg_pt) {
 			u16 sep_rtpi = pr_reg->tg_pt_sep_rtpi;
 
-			buf[off++] = ((sep_rtpi >> 8) & 0xff);
-			buf[off++] = (sep_rtpi & 0xff);
+			put_unaligned_be16(sep_rtpi, &buf[off]);
+			off += 2;
 		} else
 			off += 2; /* Skip over RELATIVE TARGET PORT IDENTIFIER */
 
@@ -4062,10 +4009,7 @@ core_scsi3_pri_read_full_status(struct se_cmd *cmd)
 		/*
 		 * Set the ADDITIONAL DESCRIPTOR LENGTH
 		 */
-		buf[off++] = ((desc_len >> 24) & 0xff);
-		buf[off++] = ((desc_len >> 16) & 0xff);
-		buf[off++] = ((desc_len >> 8) & 0xff);
-		buf[off++] = (desc_len & 0xff);
+		put_unaligned_be32(desc_len, &buf[off]);
 		/*
 		 * Size of full desctipor header minus TransportID
 		 * containing $FABRIC_MOD specific) initiator device/port
@@ -4082,10 +4026,7 @@ core_scsi3_pri_read_full_status(struct se_cmd *cmd)
 	/*
 	 * Set ADDITIONAL_LENGTH
 	 */
-	buf[4] = ((add_len >> 24) & 0xff);
-	buf[5] = ((add_len >> 16) & 0xff);
-	buf[6] = ((add_len >> 8) & 0xff);
-	buf[7] = (add_len & 0xff);
+	put_unaligned_be32(add_len, &buf[4]);
 
 	transport_kunmap_data_sg(cmd);
 
diff --git a/drivers/target/target_core_pscsi.c b/drivers/target/target_core_pscsi.c
index ceec0211e84e..7c69b4a9694d 100644
--- a/drivers/target/target_core_pscsi.c
+++ b/drivers/target/target_core_pscsi.c
@@ -168,7 +168,7 @@ static void pscsi_tape_read_blocksize(struct se_device *dev,
 	/*
 	 * If MODE_SENSE still returns zero, set the default value to 1024.
 	 */
-	sdev->sector_size = (buf[9] << 16) | (buf[10] << 8) | (buf[11]);
+	sdev->sector_size = get_unaligned_be24(&buf[9]);
 out_free:
 	if (!sdev->sector_size)
 		sdev->sector_size = 1024;
@@ -209,8 +209,7 @@ pscsi_get_inquiry_vpd_serial(struct scsi_device *sdev, struct t10_wwn *wwn)
 	cdb[0] = INQUIRY;
 	cdb[1] = 0x01; /* Query VPD */
 	cdb[2] = 0x80; /* Unit Serial Number */
-	cdb[3] = (INQUIRY_VPD_SERIAL_LEN >> 8) & 0xff;
-	cdb[4] = (INQUIRY_VPD_SERIAL_LEN & 0xff);
+	put_unaligned_be16(INQUIRY_VPD_SERIAL_LEN, &cdb[3]);
 
 	ret = scsi_execute_req(sdev, cdb, DMA_FROM_DEVICE, buf,
 			      INQUIRY_VPD_SERIAL_LEN, NULL, HZ, 1, NULL);
@@ -245,8 +244,7 @@ pscsi_get_inquiry_vpd_device_ident(struct scsi_device *sdev,
 	cdb[0] = INQUIRY;
 	cdb[1] = 0x01; /* Query VPD */
 	cdb[2] = 0x83; /* Device Identifier */
-	cdb[3] = (INQUIRY_VPD_DEVICE_IDENTIFIER_LEN >> 8) & 0xff;
-	cdb[4] = (INQUIRY_VPD_DEVICE_IDENTIFIER_LEN & 0xff);
+	put_unaligned_be16(INQUIRY_VPD_DEVICE_IDENTIFIER_LEN, &cdb[3]);
 
 	ret = scsi_execute_req(sdev, cdb, DMA_FROM_DEVICE, buf,
 			      INQUIRY_VPD_DEVICE_IDENTIFIER_LEN,
@@ -254,7 +252,7 @@ pscsi_get_inquiry_vpd_device_ident(struct scsi_device *sdev,
 	if (ret)
 		goto out;
 
-	page_len = (buf[2] << 8) | buf[3];
+	page_len = get_unaligned_be16(&buf[2]);
 	while (page_len > 0) {
 		/* Grab a pointer to the Identification descriptor */
 		page_83 = &buf[off];
@@ -384,7 +382,7 @@ static int pscsi_create_type_disk(struct se_device *dev, struct scsi_device *sd)
 	spin_unlock_irq(sh->host_lock);
 	/*
 	 * Claim exclusive struct block_device access to struct scsi_device
-	 * for TYPE_DISK using supplied udev_path
+	 * for TYPE_DISK and TYPE_ZBC using supplied udev_path
 	 */
 	bd = blkdev_get_by_path(dev->udev_path,
 				FMODE_WRITE|FMODE_READ|FMODE_EXCL, pdv);
@@ -402,8 +400,9 @@ static int pscsi_create_type_disk(struct se_device *dev, struct scsi_device *sd)
 		return ret;
 	}
 
-	pr_debug("CORE_PSCSI[%d] - Added TYPE_DISK for %d:%d:%d:%llu\n",
-		phv->phv_host_id, sh->host_no, sd->channel, sd->id, sd->lun);
+	pr_debug("CORE_PSCSI[%d] - Added TYPE_%s for %d:%d:%d:%llu\n",
+		phv->phv_host_id, sd->type == TYPE_DISK ? "DISK" : "ZBC",
+		sh->host_no, sd->channel, sd->id, sd->lun);
 	return 0;
 }
 
@@ -522,6 +521,7 @@ static int pscsi_configure_device(struct se_device *dev)
 		 */
 		switch (sd->type) {
 		case TYPE_DISK:
+		case TYPE_ZBC:
 			ret = pscsi_create_type_disk(dev, sd);
 			break;
 		default:
@@ -566,6 +566,11 @@ static void pscsi_dev_call_rcu(struct rcu_head *p)
 
 static void pscsi_free_device(struct se_device *dev)
 {
+	call_rcu(&dev->rcu_head, pscsi_dev_call_rcu);
+}
+
+static void pscsi_destroy_device(struct se_device *dev)
+{
 	struct pscsi_dev_virt *pdv = PSCSI_DEV(dev);
 	struct pscsi_hba_virt *phv = dev->se_hba->hba_ptr;
 	struct scsi_device *sd = pdv->pdv_sd;
@@ -573,9 +578,11 @@ static void pscsi_free_device(struct se_device *dev)
 	if (sd) {
 		/*
 		 * Release exclusive pSCSI internal struct block_device claim for
-		 * struct scsi_device with TYPE_DISK from pscsi_create_type_disk()
+		 * struct scsi_device with TYPE_DISK or TYPE_ZBC
+		 * from pscsi_create_type_disk()
 		 */
-		if ((sd->type == TYPE_DISK) && pdv->pdv_bd) {
+		if ((sd->type == TYPE_DISK || sd->type == TYPE_ZBC) &&
+		    pdv->pdv_bd) {
 			blkdev_put(pdv->pdv_bd,
 				   FMODE_WRITE|FMODE_READ|FMODE_EXCL);
 			pdv->pdv_bd = NULL;
@@ -594,15 +601,13 @@ static void pscsi_free_device(struct se_device *dev)
 
 		pdv->pdv_sd = NULL;
 	}
-	call_rcu(&dev->rcu_head, pscsi_dev_call_rcu);
 }
 
-static void pscsi_transport_complete(struct se_cmd *cmd, struct scatterlist *sg,
-				     unsigned char *sense_buffer)
+static void pscsi_complete_cmd(struct se_cmd *cmd, u8 scsi_status,
+			       unsigned char *req_sense)
 {
 	struct pscsi_dev_virt *pdv = PSCSI_DEV(cmd->se_dev);
 	struct scsi_device *sd = pdv->pdv_sd;
-	int result;
 	struct pscsi_plugin_task *pt = cmd->priv;
 	unsigned char *cdb;
 	/*
@@ -613,7 +618,6 @@ static void pscsi_transport_complete(struct se_cmd *cmd, struct scatterlist *sg,
 		return;
 
 	cdb = &pt->pscsi_cdb[0];
-	result = pt->pscsi_result;
 	/*
 	 * Hack to make sure that Write-Protect modepage is set if R/O mode is
 	 * forced.
@@ -622,7 +626,7 @@ static void pscsi_transport_complete(struct se_cmd *cmd, struct scatterlist *sg,
 		goto after_mode_sense;
 
 	if (((cdb[0] == MODE_SENSE) || (cdb[0] == MODE_SENSE_10)) &&
-	     (status_byte(result) << 1) == SAM_STAT_GOOD) {
+	    scsi_status == SAM_STAT_GOOD) {
 		bool read_only = target_lun_is_rdonly(cmd);
 
 		if (read_only) {
@@ -657,40 +661,36 @@ after_mode_sense:
 	 * storage engine.
 	 */
 	if (((cdb[0] == MODE_SELECT) || (cdb[0] == MODE_SELECT_10)) &&
-	      (status_byte(result) << 1) == SAM_STAT_GOOD) {
+	     scsi_status == SAM_STAT_GOOD) {
 		unsigned char *buf;
 		u16 bdl;
 		u32 blocksize;
 
-		buf = sg_virt(&sg[0]);
+		buf = sg_virt(&cmd->t_data_sg[0]);
 		if (!buf) {
 			pr_err("Unable to get buf for scatterlist\n");
 			goto after_mode_select;
 		}
 
 		if (cdb[0] == MODE_SELECT)
-			bdl = (buf[3]);
+			bdl = buf[3];
 		else
-			bdl = (buf[6] << 8) | (buf[7]);
+			bdl = get_unaligned_be16(&buf[6]);
 
 		if (!bdl)
 			goto after_mode_select;
 
 		if (cdb[0] == MODE_SELECT)
-			blocksize = (buf[9] << 16) | (buf[10] << 8) |
-					(buf[11]);
+			blocksize = get_unaligned_be24(&buf[9]);
 		else
-			blocksize = (buf[13] << 16) | (buf[14] << 8) |
-					(buf[15]);
+			blocksize = get_unaligned_be24(&buf[13]);
 
 		sd->sector_size = blocksize;
 	}
 after_mode_select:
 
-	if (sense_buffer && (status_byte(result) & CHECK_CONDITION)) {
-		memcpy(sense_buffer, pt->pscsi_sense, TRANSPORT_SENSE_BUFFER);
-		cmd->se_cmd_flags |= SCF_TRANSPORT_TASK_SENSE;
-	}
+	if (scsi_status == SAM_STAT_CHECK_CONDITION)
+		transport_copy_sense_to_cmd(cmd, req_sense);
 }
 
 enum {
@@ -1002,7 +1002,8 @@ pscsi_execute_cmd(struct se_cmd *cmd)
 	req->end_io_data = cmd;
 	scsi_req(req)->cmd_len = scsi_command_size(pt->pscsi_cdb);
 	scsi_req(req)->cmd = &pt->pscsi_cdb[0];
-	if (pdv->pdv_sd->type == TYPE_DISK)
+	if (pdv->pdv_sd->type == TYPE_DISK ||
+	    pdv->pdv_sd->type == TYPE_ZBC)
 		req->timeout = PS_TIMEOUT_DISK;
 	else
 		req->timeout = PS_TIMEOUT_OTHER;
@@ -1047,30 +1048,29 @@ static void pscsi_req_done(struct request *req, blk_status_t status)
 {
 	struct se_cmd *cmd = req->end_io_data;
 	struct pscsi_plugin_task *pt = cmd->priv;
+	int result = scsi_req(req)->result;
+	u8 scsi_status = status_byte(result) << 1;
 
-	pt->pscsi_result = scsi_req(req)->result;
-	pt->pscsi_resid = scsi_req(req)->resid_len;
-
-	cmd->scsi_status = status_byte(pt->pscsi_result) << 1;
-	if (cmd->scsi_status) {
+	if (scsi_status) {
 		pr_debug("PSCSI Status Byte exception at cmd: %p CDB:"
 			" 0x%02x Result: 0x%08x\n", cmd, pt->pscsi_cdb[0],
-			pt->pscsi_result);
+			result);
 	}
 
-	switch (host_byte(pt->pscsi_result)) {
+	pscsi_complete_cmd(cmd, scsi_status, scsi_req(req)->sense);
+
+	switch (host_byte(result)) {
 	case DID_OK:
-		target_complete_cmd(cmd, cmd->scsi_status);
+		target_complete_cmd(cmd, scsi_status);
 		break;
 	default:
 		pr_debug("PSCSI Host Byte exception at cmd: %p CDB:"
 			" 0x%02x Result: 0x%08x\n", cmd, pt->pscsi_cdb[0],
-			pt->pscsi_result);
+			result);
 		target_complete_cmd(cmd, SAM_STAT_CHECK_CONDITION);
 		break;
 	}
 
-	memcpy(pt->pscsi_sense, scsi_req(req)->sense, TRANSPORT_SENSE_BUFFER);
 	__blk_put_request(req->q, req);
 	kfree(pt);
 }
@@ -1086,8 +1086,8 @@ static const struct target_backend_ops pscsi_ops = {
 	.pmode_enable_hba	= pscsi_pmode_enable_hba,
 	.alloc_device		= pscsi_alloc_device,
 	.configure_device	= pscsi_configure_device,
+	.destroy_device		= pscsi_destroy_device,
 	.free_device		= pscsi_free_device,
-	.transport_complete	= pscsi_transport_complete,
 	.parse_cdb		= pscsi_parse_cdb,
 	.set_configfs_dev_params = pscsi_set_configfs_dev_params,
 	.show_configfs_dev_params = pscsi_show_configfs_dev_params,
diff --git a/drivers/target/target_core_pscsi.h b/drivers/target/target_core_pscsi.h
index 8a02fa47c7e8..b86fb0e1b783 100644
--- a/drivers/target/target_core_pscsi.h
+++ b/drivers/target/target_core_pscsi.h
@@ -23,10 +23,6 @@ struct scsi_device;
 struct Scsi_Host;
 
 struct pscsi_plugin_task {
-	unsigned char pscsi_sense[TRANSPORT_SENSE_BUFFER];
-	int	pscsi_direction;
-	int	pscsi_result;
-	u32	pscsi_resid;
 	unsigned char pscsi_cdb[0];
 } ____cacheline_aligned;
 
diff --git a/drivers/target/target_core_rd.c b/drivers/target/target_core_rd.c
index 20253d04103f..a6e8106abd6f 100644
--- a/drivers/target/target_core_rd.c
+++ b/drivers/target/target_core_rd.c
@@ -339,10 +339,14 @@ static void rd_dev_call_rcu(struct rcu_head *p)
 
 static void rd_free_device(struct se_device *dev)
 {
+	call_rcu(&dev->rcu_head, rd_dev_call_rcu);
+}
+
+static void rd_destroy_device(struct se_device *dev)
+{
 	struct rd_dev *rd_dev = RD_DEV(dev);
 
 	rd_release_device_space(rd_dev);
-	call_rcu(&dev->rcu_head, rd_dev_call_rcu);
 }
 
 static struct rd_dev_sg_table *rd_get_sg_table(struct rd_dev *rd_dev, u32 page)
@@ -554,7 +558,7 @@ static ssize_t rd_set_configfs_dev_params(struct se_device *dev,
 	struct rd_dev *rd_dev = RD_DEV(dev);
 	char *orig, *ptr, *opts;
 	substring_t args[MAX_OPT_ARGS];
-	int ret = 0, arg, token;
+	int arg, token;
 
 	opts = kstrdup(page, GFP_KERNEL);
 	if (!opts)
@@ -589,7 +593,7 @@ static ssize_t rd_set_configfs_dev_params(struct se_device *dev,
 	}
 
 	kfree(orig);
-	return (!ret) ? count : ret;
+	return count;
 }
 
 static ssize_t rd_show_configfs_dev_params(struct se_device *dev, char *b)
@@ -651,6 +655,7 @@ static const struct target_backend_ops rd_mcp_ops = {
 	.detach_hba		= rd_detach_hba,
 	.alloc_device		= rd_alloc_device,
 	.configure_device	= rd_configure_device,
+	.destroy_device		= rd_destroy_device,
 	.free_device		= rd_free_device,
 	.parse_cdb		= rd_parse_cdb,
 	.set_configfs_dev_params = rd_set_configfs_dev_params,
diff --git a/drivers/target/target_core_sbc.c b/drivers/target/target_core_sbc.c
index dc9456e7dac9..750a04ed0e93 100644
--- a/drivers/target/target_core_sbc.c
+++ b/drivers/target/target_core_sbc.c
@@ -71,14 +71,8 @@ sbc_emulate_readcapacity(struct se_cmd *cmd)
 	else
 		blocks = (u32)blocks_long;
 
-	buf[0] = (blocks >> 24) & 0xff;
-	buf[1] = (blocks >> 16) & 0xff;
-	buf[2] = (blocks >> 8) & 0xff;
-	buf[3] = blocks & 0xff;
-	buf[4] = (dev->dev_attrib.block_size >> 24) & 0xff;
-	buf[5] = (dev->dev_attrib.block_size >> 16) & 0xff;
-	buf[6] = (dev->dev_attrib.block_size >> 8) & 0xff;
-	buf[7] = dev->dev_attrib.block_size & 0xff;
+	put_unaligned_be32(blocks, &buf[0]);
+	put_unaligned_be32(dev->dev_attrib.block_size, &buf[4]);
 
 	rbuf = transport_kmap_data_sg(cmd);
 	if (rbuf) {
@@ -102,18 +96,8 @@ sbc_emulate_readcapacity_16(struct se_cmd *cmd)
 	unsigned long long blocks = dev->transport->get_blocks(dev);
 
 	memset(buf, 0, sizeof(buf));
-	buf[0] = (blocks >> 56) & 0xff;
-	buf[1] = (blocks >> 48) & 0xff;
-	buf[2] = (blocks >> 40) & 0xff;
-	buf[3] = (blocks >> 32) & 0xff;
-	buf[4] = (blocks >> 24) & 0xff;
-	buf[5] = (blocks >> 16) & 0xff;
-	buf[6] = (blocks >> 8) & 0xff;
-	buf[7] = blocks & 0xff;
-	buf[8] = (dev->dev_attrib.block_size >> 24) & 0xff;
-	buf[9] = (dev->dev_attrib.block_size >> 16) & 0xff;
-	buf[10] = (dev->dev_attrib.block_size >> 8) & 0xff;
-	buf[11] = dev->dev_attrib.block_size & 0xff;
+	put_unaligned_be64(blocks, &buf[0]);
+	put_unaligned_be32(dev->dev_attrib.block_size, &buf[8]);
 	/*
 	 * Set P_TYPE and PROT_EN bits for DIF support
 	 */
@@ -134,8 +118,8 @@ sbc_emulate_readcapacity_16(struct se_cmd *cmd)
 
 	if (dev->transport->get_alignment_offset_lbas) {
 		u16 lalba = dev->transport->get_alignment_offset_lbas(dev);
-		buf[14] = (lalba >> 8) & 0x3f;
-		buf[15] = lalba & 0xff;
+
+		put_unaligned_be16(lalba, &buf[14]);
 	}
 
 	/*
@@ -262,18 +246,17 @@ static inline u32 transport_get_sectors_6(unsigned char *cdb)
 
 static inline u32 transport_get_sectors_10(unsigned char *cdb)
 {
-	return (u32)(cdb[7] << 8) + cdb[8];
+	return get_unaligned_be16(&cdb[7]);
 }
 
 static inline u32 transport_get_sectors_12(unsigned char *cdb)
 {
-	return (u32)(cdb[6] << 24) + (cdb[7] << 16) + (cdb[8] << 8) + cdb[9];
+	return get_unaligned_be32(&cdb[6]);
 }
 
 static inline u32 transport_get_sectors_16(unsigned char *cdb)
 {
-	return (u32)(cdb[10] << 24) + (cdb[11] << 16) +
-		    (cdb[12] << 8) + cdb[13];
+	return get_unaligned_be32(&cdb[10]);
 }
 
 /*
@@ -281,29 +264,23 @@ static inline u32 transport_get_sectors_16(unsigned char *cdb)
  */
 static inline u32 transport_get_sectors_32(unsigned char *cdb)
 {
-	return (u32)(cdb[28] << 24) + (cdb[29] << 16) +
-		    (cdb[30] << 8) + cdb[31];
+	return get_unaligned_be32(&cdb[28]);
 
 }
 
 static inline u32 transport_lba_21(unsigned char *cdb)
 {
-	return ((cdb[1] & 0x1f) << 16) | (cdb[2] << 8) | cdb[3];
+	return get_unaligned_be24(&cdb[1]) & 0x1fffff;
 }
 
 static inline u32 transport_lba_32(unsigned char *cdb)
 {
-	return (cdb[2] << 24) | (cdb[3] << 16) | (cdb[4] << 8) | cdb[5];
+	return get_unaligned_be32(&cdb[2]);
 }
 
 static inline unsigned long long transport_lba_64(unsigned char *cdb)
 {
-	unsigned int __v1, __v2;
-
-	__v1 = (cdb[2] << 24) | (cdb[3] << 16) | (cdb[4] << 8) | cdb[5];
-	__v2 = (cdb[6] << 24) | (cdb[7] << 16) | (cdb[8] << 8) | cdb[9];
-
-	return ((unsigned long long)__v2) | (unsigned long long)__v1 << 32;
+	return get_unaligned_be64(&cdb[2]);
 }
 
 /*
@@ -311,12 +288,7 @@ static inline unsigned long long transport_lba_64(unsigned char *cdb)
  */
 static inline unsigned long long transport_lba_64_ext(unsigned char *cdb)
 {
-	unsigned int __v1, __v2;
-
-	__v1 = (cdb[12] << 24) | (cdb[13] << 16) | (cdb[14] << 8) | cdb[15];
-	__v2 = (cdb[16] << 24) | (cdb[17] << 16) | (cdb[18] << 8) | cdb[19];
-
-	return ((unsigned long long)__v2) | (unsigned long long)__v1 << 32;
+	return get_unaligned_be64(&cdb[12]);
 }
 
 static sense_reason_t
@@ -1005,6 +977,12 @@ sbc_parse_cdb(struct se_cmd *cmd, struct sbc_ops *ops)
 		break;
 	}
 	case COMPARE_AND_WRITE:
+		if (!dev->dev_attrib.emulate_caw) {
+			pr_err_ratelimited("se_device %s/%s (vpd_unit_serial %s) reject"
+				" COMPARE_AND_WRITE\n", dev->se_hba->backend->ops->name,
+				dev->dev_group.cg_item.ci_name, dev->t10_wwn.unit_serial);
+			return TCM_UNSUPPORTED_SCSI_OPCODE;
+		}
 		sectors = cdb[13];
 		/*
 		 * Currently enforce COMPARE_AND_WRITE for a single sector
@@ -1045,8 +1023,7 @@ sbc_parse_cdb(struct se_cmd *cmd, struct sbc_ops *ops)
 				cmd->t_task_cdb[1] & 0x1f);
 			return TCM_INVALID_CDB_FIELD;
 		}
-		size = (cdb[10] << 24) | (cdb[11] << 16) |
-		       (cdb[12] << 8) | cdb[13];
+		size = get_unaligned_be32(&cdb[10]);
 		break;
 	case SYNCHRONIZE_CACHE:
 	case SYNCHRONIZE_CACHE_16:
diff --git a/drivers/target/target_core_spc.c b/drivers/target/target_core_spc.c
index 2a91ed3ef380..cb0461a10808 100644
--- a/drivers/target/target_core_spc.c
+++ b/drivers/target/target_core_spc.c
@@ -287,8 +287,8 @@ check_t10_vend_desc:
 		/* Skip over Obsolete field in RTPI payload
 		 * in Table 472 */
 		off += 2;
-		buf[off++] = ((lun->lun_rtpi >> 8) & 0xff);
-		buf[off++] = (lun->lun_rtpi & 0xff);
+		put_unaligned_be16(lun->lun_rtpi, &buf[off]);
+		off += 2;
 		len += 8; /* Header size + Designation descriptor */
 		/*
 		 * Target port group identifier, see spc4r17
@@ -316,8 +316,8 @@ check_t10_vend_desc:
 		off++; /* Skip over Reserved */
 		buf[off++] = 4; /* DESIGNATOR LENGTH */
 		off += 2; /* Skip over Reserved Field */
-		buf[off++] = ((tg_pt_gp_id >> 8) & 0xff);
-		buf[off++] = (tg_pt_gp_id & 0xff);
+		put_unaligned_be16(tg_pt_gp_id, &buf[off]);
+		off += 2;
 		len += 8; /* Header size + Designation descriptor */
 		/*
 		 * Logical Unit Group identifier, see spc4r17
@@ -343,8 +343,8 @@ check_lu_gp:
 		off++; /* Skip over Reserved */
 		buf[off++] = 4; /* DESIGNATOR LENGTH */
 		off += 2; /* Skip over Reserved Field */
-		buf[off++] = ((lu_gp_id >> 8) & 0xff);
-		buf[off++] = (lu_gp_id & 0xff);
+		put_unaligned_be16(lu_gp_id, &buf[off]);
+		off += 2;
 		len += 8; /* Header size + Designation descriptor */
 		/*
 		 * SCSI name string designator, see spc4r17
@@ -431,8 +431,7 @@ check_scsi_name:
 		/* Header size + Designation descriptor */
 		len += (scsi_target_len + 4);
 	}
-	buf[2] = ((len >> 8) & 0xff);
-	buf[3] = (len & 0xff); /* Page Length for VPD 0x83 */
+	put_unaligned_be16(len, &buf[2]); /* Page Length for VPD 0x83 */
 	return 0;
 }
 EXPORT_SYMBOL(spc_emulate_evpd_83);
@@ -1288,7 +1287,7 @@ spc_parse_cdb(struct se_cmd *cmd, unsigned int *size)
 		cmd->execute_cmd = spc_emulate_modeselect;
 		break;
 	case MODE_SELECT_10:
-		*size = (cdb[7] << 8) + cdb[8];
+		*size = get_unaligned_be16(&cdb[7]);
 		cmd->execute_cmd = spc_emulate_modeselect;
 		break;
 	case MODE_SENSE:
@@ -1296,25 +1295,25 @@ spc_parse_cdb(struct se_cmd *cmd, unsigned int *size)
 		cmd->execute_cmd = spc_emulate_modesense;
 		break;
 	case MODE_SENSE_10:
-		*size = (cdb[7] << 8) + cdb[8];
+		*size = get_unaligned_be16(&cdb[7]);
 		cmd->execute_cmd = spc_emulate_modesense;
 		break;
 	case LOG_SELECT:
 	case LOG_SENSE:
-		*size = (cdb[7] << 8) + cdb[8];
+		*size = get_unaligned_be16(&cdb[7]);
 		break;
 	case PERSISTENT_RESERVE_IN:
-		*size = (cdb[7] << 8) + cdb[8];
+		*size = get_unaligned_be16(&cdb[7]);
 		cmd->execute_cmd = target_scsi3_emulate_pr_in;
 		break;
 	case PERSISTENT_RESERVE_OUT:
-		*size = (cdb[7] << 8) + cdb[8];
+		*size = get_unaligned_be32(&cdb[5]);
 		cmd->execute_cmd = target_scsi3_emulate_pr_out;
 		break;
 	case RELEASE:
 	case RELEASE_10:
 		if (cdb[0] == RELEASE_10)
-			*size = (cdb[7] << 8) | cdb[8];
+			*size = get_unaligned_be16(&cdb[7]);
 		else
 			*size = cmd->data_length;
 
@@ -1327,7 +1326,7 @@ spc_parse_cdb(struct se_cmd *cmd, unsigned int *size)
 		 * Assume the passthrough or $FABRIC_MOD will tell us about it.
 		 */
 		if (cdb[0] == RESERVE_10)
-			*size = (cdb[7] << 8) | cdb[8];
+			*size = get_unaligned_be16(&cdb[7]);
 		else
 			*size = cmd->data_length;
 
@@ -1338,7 +1337,7 @@ spc_parse_cdb(struct se_cmd *cmd, unsigned int *size)
 		cmd->execute_cmd = spc_emulate_request_sense;
 		break;
 	case INQUIRY:
-		*size = (cdb[3] << 8) + cdb[4];
+		*size = get_unaligned_be16(&cdb[3]);
 
 		/*
 		 * Do implicit HEAD_OF_QUEUE processing for INQUIRY.
@@ -1349,7 +1348,7 @@ spc_parse_cdb(struct se_cmd *cmd, unsigned int *size)
 		break;
 	case SECURITY_PROTOCOL_IN:
 	case SECURITY_PROTOCOL_OUT:
-		*size = (cdb[6] << 24) | (cdb[7] << 16) | (cdb[8] << 8) | cdb[9];
+		*size = get_unaligned_be32(&cdb[6]);
 		break;
 	case EXTENDED_COPY:
 		*size = get_unaligned_be32(&cdb[10]);
@@ -1361,19 +1360,18 @@ spc_parse_cdb(struct se_cmd *cmd, unsigned int *size)
 		break;
 	case READ_ATTRIBUTE:
 	case WRITE_ATTRIBUTE:
-		*size = (cdb[10] << 24) | (cdb[11] << 16) |
-		       (cdb[12] << 8) | cdb[13];
+		*size = get_unaligned_be32(&cdb[10]);
 		break;
 	case RECEIVE_DIAGNOSTIC:
 	case SEND_DIAGNOSTIC:
-		*size = (cdb[3] << 8) | cdb[4];
+		*size = get_unaligned_be16(&cdb[3]);
 		break;
 	case WRITE_BUFFER:
-		*size = (cdb[6] << 16) + (cdb[7] << 8) + cdb[8];
+		*size = get_unaligned_be24(&cdb[6]);
 		break;
 	case REPORT_LUNS:
 		cmd->execute_cmd = spc_emulate_report_luns;
-		*size = (cdb[6] << 24) | (cdb[7] << 16) | (cdb[8] << 8) | cdb[9];
+		*size = get_unaligned_be32(&cdb[6]);
 		/*
 		 * Do implicit HEAD_OF_QUEUE processing for REPORT_LUNS
 		 * See spc4r17 section 5.3
diff --git a/drivers/target/target_core_tmr.c b/drivers/target/target_core_tmr.c
index 13f47bf4d16b..e22847bd79b9 100644
--- a/drivers/target/target_core_tmr.c
+++ b/drivers/target/target_core_tmr.c
@@ -355,20 +355,10 @@ static void core_tmr_drain_state_list(
 		cmd = list_entry(drain_task_list.next, struct se_cmd, state_list);
 		list_del_init(&cmd->state_list);
 
-		pr_debug("LUN_RESET: %s cmd: %p"
-			" ITT/CmdSN: 0x%08llx/0x%08x, i_state: %d, t_state: %d"
-			"cdb: 0x%02x\n",
-			(preempt_and_abort_list) ? "Preempt" : "", cmd,
-			cmd->tag, 0,
-			cmd->se_tfo->get_cmd_state(cmd), cmd->t_state,
-			cmd->t_task_cdb[0]);
-		pr_debug("LUN_RESET: ITT[0x%08llx] - pr_res_key: 0x%016Lx"
-			" -- CMD_T_ACTIVE: %d"
-			" CMD_T_STOP: %d CMD_T_SENT: %d\n",
-			cmd->tag, cmd->pr_res_key,
-			(cmd->transport_state & CMD_T_ACTIVE) != 0,
-			(cmd->transport_state & CMD_T_STOP) != 0,
-			(cmd->transport_state & CMD_T_SENT) != 0);
+		target_show_cmd("LUN_RESET: ", cmd);
+		pr_debug("LUN_RESET: ITT[0x%08llx] - %s pr_res_key: 0x%016Lx\n",
+			 cmd->tag, (preempt_and_abort_list) ? "preempt" : "",
+			 cmd->pr_res_key);
 
 		/*
 		 * If the command may be queued onto a workqueue cancel it now.
diff --git a/drivers/target/target_core_tpg.c b/drivers/target/target_core_tpg.c
index 310d9e55c6eb..02e8a5d86658 100644
--- a/drivers/target/target_core_tpg.c
+++ b/drivers/target/target_core_tpg.c
@@ -364,7 +364,7 @@ void core_tpg_del_initiator_node_acl(struct se_node_acl *acl)
 	mutex_lock(&tpg->acl_node_mutex);
 	if (acl->dynamic_node_acl)
 		acl->dynamic_node_acl = 0;
-	list_del(&acl->acl_list);
+	list_del_init(&acl->acl_list);
 	mutex_unlock(&tpg->acl_node_mutex);
 
 	target_shutdown_sessions(acl);
@@ -548,7 +548,7 @@ int core_tpg_deregister(struct se_portal_group *se_tpg)
 	 * in transport_deregister_session().
 	 */
 	list_for_each_entry_safe(nacl, nacl_tmp, &node_list, acl_list) {
-		list_del(&nacl->acl_list);
+		list_del_init(&nacl->acl_list);
 
 		core_tpg_wait_for_nacl_pr_ref(nacl);
 		core_free_device_list_for_node(nacl, se_tpg);
@@ -576,7 +576,6 @@ struct se_lun *core_tpg_alloc_lun(
 		return ERR_PTR(-ENOMEM);
 	}
 	lun->unpacked_lun = unpacked_lun;
-	lun->lun_link_magic = SE_LUN_LINK_MAGIC;
 	atomic_set(&lun->lun_acl_count, 0);
 	init_completion(&lun->lun_ref_comp);
 	init_completion(&lun->lun_shutdown_comp);
diff --git a/drivers/target/target_core_transport.c b/drivers/target/target_core_transport.c
index f1b3a46bdcaf..836d552b0385 100644
--- a/drivers/target/target_core_transport.c
+++ b/drivers/target/target_core_transport.c
@@ -252,7 +252,7 @@ int transport_alloc_session_tags(struct se_session *se_sess,
 	int rc;
 
 	se_sess->sess_cmd_map = kzalloc(tag_num * tag_size,
-					GFP_KERNEL | __GFP_NOWARN | __GFP_REPEAT);
+					GFP_KERNEL | __GFP_NOWARN | __GFP_RETRY_MAYFAIL);
 	if (!se_sess->sess_cmd_map) {
 		se_sess->sess_cmd_map = vzalloc(tag_num * tag_size);
 		if (!se_sess->sess_cmd_map) {
@@ -466,7 +466,7 @@ static void target_complete_nacl(struct kref *kref)
 	}
 
 	mutex_lock(&se_tpg->acl_node_mutex);
-	list_del(&nacl->acl_list);
+	list_del_init(&nacl->acl_list);
 	mutex_unlock(&se_tpg->acl_node_mutex);
 
 	core_tpg_wait_for_nacl_pr_ref(nacl);
@@ -538,7 +538,7 @@ void transport_free_session(struct se_session *se_sess)
 			spin_unlock_irqrestore(&se_nacl->nacl_sess_lock, flags);
 
 			if (se_nacl->dynamic_stop)
-				list_del(&se_nacl->acl_list);
+				list_del_init(&se_nacl->acl_list);
 		}
 		mutex_unlock(&se_tpg->acl_node_mutex);
 
@@ -704,23 +704,43 @@ static unsigned char *transport_get_sense_buffer(struct se_cmd *cmd)
 	return cmd->sense_buffer;
 }
 
+void transport_copy_sense_to_cmd(struct se_cmd *cmd, unsigned char *sense)
+{
+	unsigned char *cmd_sense_buf;
+	unsigned long flags;
+
+	spin_lock_irqsave(&cmd->t_state_lock, flags);
+	cmd_sense_buf = transport_get_sense_buffer(cmd);
+	if (!cmd_sense_buf) {
+		spin_unlock_irqrestore(&cmd->t_state_lock, flags);
+		return;
+	}
+
+	cmd->se_cmd_flags |= SCF_TRANSPORT_TASK_SENSE;
+	memcpy(cmd_sense_buf, sense, cmd->scsi_sense_length);
+	spin_unlock_irqrestore(&cmd->t_state_lock, flags);
+}
+EXPORT_SYMBOL(transport_copy_sense_to_cmd);
+
 void target_complete_cmd(struct se_cmd *cmd, u8 scsi_status)
 {
 	struct se_device *dev = cmd->se_dev;
-	int success = scsi_status == GOOD;
+	int success;
 	unsigned long flags;
 
 	cmd->scsi_status = scsi_status;
 
-
 	spin_lock_irqsave(&cmd->t_state_lock, flags);
-
-	if (dev && dev->transport->transport_complete) {
-		dev->transport->transport_complete(cmd,
-				cmd->t_data_sg,
-				transport_get_sense_buffer(cmd));
+	switch (cmd->scsi_status) {
+	case SAM_STAT_CHECK_CONDITION:
 		if (cmd->se_cmd_flags & SCF_TRANSPORT_TASK_SENSE)
 			success = 1;
+		else
+			success = 0;
+		break;
+	default:
+		success = 1;
+		break;
 	}
 
 	/*
@@ -730,6 +750,15 @@ void target_complete_cmd(struct se_cmd *cmd, u8 scsi_status)
 	if (cmd->transport_state & CMD_T_ABORTED ||
 	    cmd->transport_state & CMD_T_STOP) {
 		spin_unlock_irqrestore(&cmd->t_state_lock, flags);
+		/*
+		 * If COMPARE_AND_WRITE was stopped by __transport_wait_for_tasks(),
+		 * release se_device->caw_sem obtained by sbc_compare_and_write()
+		 * since target_complete_ok_work() or target_complete_failure_work()
+		 * won't be called to invoke the normal CAW completion callbacks.
+		 */
+		if (cmd->se_cmd_flags & SCF_COMPARE_AND_WRITE) {
+			up(&dev->caw_sem);
+		}
 		complete_all(&cmd->t_transport_stop_comp);
 		return;
 	} else if (!success) {
@@ -1239,6 +1268,7 @@ void transport_init_se_cmd(
 	init_completion(&cmd->t_transport_stop_comp);
 	init_completion(&cmd->cmd_wait_comp);
 	spin_lock_init(&cmd->t_state_lock);
+	INIT_WORK(&cmd->work, NULL);
 	kref_init(&cmd->cmd_kref);
 
 	cmd->se_tfo = tfo;
@@ -1590,9 +1620,33 @@ static void target_complete_tmr_failure(struct work_struct *work)
 	se_cmd->se_tmr_req->response = TMR_LUN_DOES_NOT_EXIST;
 	se_cmd->se_tfo->queue_tm_rsp(se_cmd);
 
+	transport_lun_remove_cmd(se_cmd);
 	transport_cmd_check_stop_to_fabric(se_cmd);
 }
 
+static bool target_lookup_lun_from_tag(struct se_session *se_sess, u64 tag,
+				       u64 *unpacked_lun)
+{
+	struct se_cmd *se_cmd;
+	unsigned long flags;
+	bool ret = false;
+
+	spin_lock_irqsave(&se_sess->sess_cmd_lock, flags);
+	list_for_each_entry(se_cmd, &se_sess->sess_cmd_list, se_cmd_list) {
+		if (se_cmd->se_cmd_flags & SCF_SCSI_TMR_CDB)
+			continue;
+
+		if (se_cmd->tag == tag) {
+			*unpacked_lun = se_cmd->orig_fe_lun;
+			ret = true;
+			break;
+		}
+	}
+	spin_unlock_irqrestore(&se_sess->sess_cmd_lock, flags);
+
+	return ret;
+}
+
 /**
  * target_submit_tmr - lookup unpacked lun and submit uninitialized se_cmd
  *                     for TMR CDBs
@@ -1640,19 +1694,31 @@ int target_submit_tmr(struct se_cmd *se_cmd, struct se_session *se_sess,
 		core_tmr_release_req(se_cmd->se_tmr_req);
 		return ret;
 	}
+	/*
+	 * If this is ABORT_TASK with no explicit fabric provided LUN,
+	 * go ahead and search active session tags for a match to figure
+	 * out unpacked_lun for the original se_cmd.
+	 */
+	if (tm_type == TMR_ABORT_TASK && (flags & TARGET_SCF_LOOKUP_LUN_FROM_TAG)) {
+		if (!target_lookup_lun_from_tag(se_sess, tag, &unpacked_lun))
+			goto failure;
+	}
 
 	ret = transport_lookup_tmr_lun(se_cmd, unpacked_lun);
-	if (ret) {
-		/*
-		 * For callback during failure handling, push this work off
-		 * to process context with TMR_LUN_DOES_NOT_EXIST status.
-		 */
-		INIT_WORK(&se_cmd->work, target_complete_tmr_failure);
-		schedule_work(&se_cmd->work);
-		return 0;
-	}
+	if (ret)
+		goto failure;
+
 	transport_generic_handle_tmr(se_cmd);
 	return 0;
+
+	/*
+	 * For callback during failure handling, push this work off
+	 * to process context with TMR_LUN_DOES_NOT_EXIST status.
+	 */
+failure:
+	INIT_WORK(&se_cmd->work, target_complete_tmr_failure);
+	schedule_work(&se_cmd->work);
+	return 0;
 }
 EXPORT_SYMBOL(target_submit_tmr);
 
@@ -1667,15 +1733,9 @@ void transport_generic_request_failure(struct se_cmd *cmd,
 	if (transport_check_aborted_status(cmd, 1))
 		return;
 
-	pr_debug("-----[ Storage Engine Exception for cmd: %p ITT: 0x%08llx"
-		" CDB: 0x%02x\n", cmd, cmd->tag, cmd->t_task_cdb[0]);
-	pr_debug("-----[ i_state: %d t_state: %d sense_reason: %d\n",
-		cmd->se_tfo->get_cmd_state(cmd),
-		cmd->t_state, sense_reason);
-	pr_debug("-----[ CMD_T_ACTIVE: %d CMD_T_STOP: %d CMD_T_SENT: %d\n",
-		(cmd->transport_state & CMD_T_ACTIVE) != 0,
-		(cmd->transport_state & CMD_T_STOP) != 0,
-		(cmd->transport_state & CMD_T_SENT) != 0);
+	pr_debug("-----[ Storage Engine Exception; sense_reason %d\n",
+		 sense_reason);
+	target_show_cmd("-----[ ", cmd);
 
 	/*
 	 * For SAM Task Attribute emulation for failed struct se_cmd
@@ -2668,6 +2728,108 @@ int target_put_sess_cmd(struct se_cmd *se_cmd)
 }
 EXPORT_SYMBOL(target_put_sess_cmd);
 
+static const char *data_dir_name(enum dma_data_direction d)
+{
+	switch (d) {
+	case DMA_BIDIRECTIONAL:	return "BIDI";
+	case DMA_TO_DEVICE:	return "WRITE";
+	case DMA_FROM_DEVICE:	return "READ";
+	case DMA_NONE:		return "NONE";
+	}
+
+	return "(?)";
+}
+
+static const char *cmd_state_name(enum transport_state_table t)
+{
+	switch (t) {
+	case TRANSPORT_NO_STATE:	return "NO_STATE";
+	case TRANSPORT_NEW_CMD:		return "NEW_CMD";
+	case TRANSPORT_WRITE_PENDING:	return "WRITE_PENDING";
+	case TRANSPORT_PROCESSING:	return "PROCESSING";
+	case TRANSPORT_COMPLETE:	return "COMPLETE";
+	case TRANSPORT_ISTATE_PROCESSING:
+					return "ISTATE_PROCESSING";
+	case TRANSPORT_COMPLETE_QF_WP:	return "COMPLETE_QF_WP";
+	case TRANSPORT_COMPLETE_QF_OK:	return "COMPLETE_QF_OK";
+	case TRANSPORT_COMPLETE_QF_ERR:	return "COMPLETE_QF_ERR";
+	}
+
+	return "(?)";
+}
+
+static void target_append_str(char **str, const char *txt)
+{
+	char *prev = *str;
+
+	*str = *str ? kasprintf(GFP_ATOMIC, "%s,%s", *str, txt) :
+		kstrdup(txt, GFP_ATOMIC);
+	kfree(prev);
+}
+
+/*
+ * Convert a transport state bitmask into a string. The caller is
+ * responsible for freeing the returned pointer.
+ */
+static char *target_ts_to_str(u32 ts)
+{
+	char *str = NULL;
+
+	if (ts & CMD_T_ABORTED)
+		target_append_str(&str, "aborted");
+	if (ts & CMD_T_ACTIVE)
+		target_append_str(&str, "active");
+	if (ts & CMD_T_COMPLETE)
+		target_append_str(&str, "complete");
+	if (ts & CMD_T_SENT)
+		target_append_str(&str, "sent");
+	if (ts & CMD_T_STOP)
+		target_append_str(&str, "stop");
+	if (ts & CMD_T_FABRIC_STOP)
+		target_append_str(&str, "fabric_stop");
+
+	return str;
+}
+
+static const char *target_tmf_name(enum tcm_tmreq_table tmf)
+{
+	switch (tmf) {
+	case TMR_ABORT_TASK:		return "ABORT_TASK";
+	case TMR_ABORT_TASK_SET:	return "ABORT_TASK_SET";
+	case TMR_CLEAR_ACA:		return "CLEAR_ACA";
+	case TMR_CLEAR_TASK_SET:	return "CLEAR_TASK_SET";
+	case TMR_LUN_RESET:		return "LUN_RESET";
+	case TMR_TARGET_WARM_RESET:	return "TARGET_WARM_RESET";
+	case TMR_TARGET_COLD_RESET:	return "TARGET_COLD_RESET";
+	case TMR_UNKNOWN:		break;
+	}
+	return "(?)";
+}
+
+void target_show_cmd(const char *pfx, struct se_cmd *cmd)
+{
+	char *ts_str = target_ts_to_str(cmd->transport_state);
+	const u8 *cdb = cmd->t_task_cdb;
+	struct se_tmr_req *tmf = cmd->se_tmr_req;
+
+	if (!(cmd->se_cmd_flags & SCF_SCSI_TMR_CDB)) {
+		pr_debug("%scmd %#02x:%#02x with tag %#llx dir %s i_state %d t_state %s len %d refcnt %d transport_state %s\n",
+			 pfx, cdb[0], cdb[1], cmd->tag,
+			 data_dir_name(cmd->data_direction),
+			 cmd->se_tfo->get_cmd_state(cmd),
+			 cmd_state_name(cmd->t_state), cmd->data_length,
+			 kref_read(&cmd->cmd_kref), ts_str);
+	} else {
+		pr_debug("%stmf %s with tag %#llx ref_task_tag %#llx i_state %d t_state %s refcnt %d transport_state %s\n",
+			 pfx, target_tmf_name(tmf->function), cmd->tag,
+			 tmf->ref_task_tag, cmd->se_tfo->get_cmd_state(cmd),
+			 cmd_state_name(cmd->t_state),
+			 kref_read(&cmd->cmd_kref), ts_str);
+	}
+	kfree(ts_str);
+}
+EXPORT_SYMBOL(target_show_cmd);
+
 /* target_sess_cmd_list_set_waiting - Flag all commands in
  *         sess_cmd_list to complete cmd_wait_comp.  Set
  *         sess_tearing_down so no more commands are queued.
@@ -2812,13 +2974,13 @@ __transport_wait_for_tasks(struct se_cmd *cmd, bool fabric_stop,
 
 	cmd->transport_state |= CMD_T_STOP;
 
-	pr_debug("wait_for_tasks: Stopping %p ITT: 0x%08llx i_state: %d,"
-		 " t_state: %d, CMD_T_STOP\n", cmd, cmd->tag,
-		 cmd->se_tfo->get_cmd_state(cmd), cmd->t_state);
+	target_show_cmd("wait_for_tasks: Stopping ", cmd);
 
 	spin_unlock_irqrestore(&cmd->t_state_lock, *flags);
 
-	wait_for_completion(&cmd->t_transport_stop_comp);
+	while (!wait_for_completion_timeout(&cmd->t_transport_stop_comp,
+					    180 * HZ))
+		target_show_cmd("wait for tasks: ", cmd);
 
 	spin_lock_irqsave(&cmd->t_state_lock, *flags);
 	cmd->transport_state &= ~(CMD_T_ACTIVE | CMD_T_STOP);
@@ -3201,6 +3363,7 @@ static void target_tmr_work(struct work_struct *work)
 	cmd->se_tfo->queue_tm_rsp(cmd);
 
 check_stop:
+	transport_lun_remove_cmd(cmd);
 	transport_cmd_check_stop_to_fabric(cmd);
 }
 
@@ -3223,6 +3386,7 @@ int transport_generic_handle_tmr(
 		pr_warn_ratelimited("handle_tmr caught CMD_T_ABORTED TMR %d"
 			"ref_tag: %llu tag: %llu\n", cmd->se_tmr_req->function,
 			cmd->se_tmr_req->ref_task_tag, cmd->tag);
+		transport_lun_remove_cmd(cmd);
 		transport_cmd_check_stop_to_fabric(cmd);
 		return 0;
 	}
diff --git a/drivers/target/target_core_user.c b/drivers/target/target_core_user.c
index beb5f098f32d..942d094269fb 100644
--- a/drivers/target/target_core_user.c
+++ b/drivers/target/target_core_user.c
@@ -87,6 +87,8 @@
 /* Default maximum of the global data blocks(512K * PAGE_SIZE) */
 #define TCMU_GLOBAL_MAX_BLOCKS (512 * 1024)
 
+static u8 tcmu_kern_cmd_reply_supported;
+
 static struct device *tcmu_root_device;
 
 struct tcmu_hba {
@@ -95,6 +97,13 @@ struct tcmu_hba {
 
 #define TCMU_CONFIG_LEN 256
 
+struct tcmu_nl_cmd {
+	/* wake up thread waiting for reply */
+	struct completion complete;
+	int cmd;
+	int status;
+};
+
 struct tcmu_dev {
 	struct list_head node;
 	struct kref kref;
@@ -135,6 +144,11 @@ struct tcmu_dev {
 	struct timer_list timeout;
 	unsigned int cmd_time_out;
 
+	spinlock_t nl_cmd_lock;
+	struct tcmu_nl_cmd curr_nl_cmd;
+	/* wake up threads waiting on curr_nl_cmd */
+	wait_queue_head_t nl_cmd_wq;
+
 	char dev_config[TCMU_CONFIG_LEN];
 };
 
@@ -178,16 +192,128 @@ static const struct genl_multicast_group tcmu_mcgrps[] = {
 	[TCMU_MCGRP_CONFIG] = { .name = "config", },
 };
 
+static struct nla_policy tcmu_attr_policy[TCMU_ATTR_MAX+1] = {
+	[TCMU_ATTR_DEVICE]	= { .type = NLA_STRING },
+	[TCMU_ATTR_MINOR]	= { .type = NLA_U32 },
+	[TCMU_ATTR_CMD_STATUS]	= { .type = NLA_S32 },
+	[TCMU_ATTR_DEVICE_ID]	= { .type = NLA_U32 },
+	[TCMU_ATTR_SUPP_KERN_CMD_REPLY] = { .type = NLA_U8 },
+};
+
+static int tcmu_genl_cmd_done(struct genl_info *info, int completed_cmd)
+{
+	struct se_device *dev;
+	struct tcmu_dev *udev;
+	struct tcmu_nl_cmd *nl_cmd;
+	int dev_id, rc, ret = 0;
+	bool is_removed = (completed_cmd == TCMU_CMD_REMOVED_DEVICE);
+
+	if (!info->attrs[TCMU_ATTR_CMD_STATUS] ||
+	    !info->attrs[TCMU_ATTR_DEVICE_ID]) {
+		printk(KERN_ERR "TCMU_ATTR_CMD_STATUS or TCMU_ATTR_DEVICE_ID not set, doing nothing\n");
+                return -EINVAL;
+        }
+
+	dev_id = nla_get_u32(info->attrs[TCMU_ATTR_DEVICE_ID]);
+	rc = nla_get_s32(info->attrs[TCMU_ATTR_CMD_STATUS]);
+
+	dev = target_find_device(dev_id, !is_removed);
+	if (!dev) {
+		printk(KERN_ERR "tcmu nl cmd %u/%u completion could not find device with dev id %u.\n",
+		       completed_cmd, rc, dev_id);
+		return -ENODEV;
+	}
+	udev = TCMU_DEV(dev);
+
+	spin_lock(&udev->nl_cmd_lock);
+	nl_cmd = &udev->curr_nl_cmd;
+
+	pr_debug("genl cmd done got id %d curr %d done %d rc %d\n", dev_id,
+		 nl_cmd->cmd, completed_cmd, rc);
+
+	if (nl_cmd->cmd != completed_cmd) {
+		printk(KERN_ERR "Mismatched commands (Expecting reply for %d. Current %d).\n",
+		       completed_cmd, nl_cmd->cmd);
+		ret = -EINVAL;
+	} else {
+		nl_cmd->status = rc;
+	}
+
+	spin_unlock(&udev->nl_cmd_lock);
+	if (!is_removed)
+		 target_undepend_item(&dev->dev_group.cg_item);
+	if (!ret)
+		complete(&nl_cmd->complete);
+	return ret;
+}
+
+static int tcmu_genl_rm_dev_done(struct sk_buff *skb, struct genl_info *info)
+{
+	return tcmu_genl_cmd_done(info, TCMU_CMD_REMOVED_DEVICE);
+}
+
+static int tcmu_genl_add_dev_done(struct sk_buff *skb, struct genl_info *info)
+{
+	return tcmu_genl_cmd_done(info, TCMU_CMD_ADDED_DEVICE);
+}
+
+static int tcmu_genl_reconfig_dev_done(struct sk_buff *skb,
+				       struct genl_info *info)
+{
+	return tcmu_genl_cmd_done(info, TCMU_CMD_RECONFIG_DEVICE);
+}
+
+static int tcmu_genl_set_features(struct sk_buff *skb, struct genl_info *info)
+{
+	if (info->attrs[TCMU_ATTR_SUPP_KERN_CMD_REPLY]) {
+		tcmu_kern_cmd_reply_supported  =
+			nla_get_u8(info->attrs[TCMU_ATTR_SUPP_KERN_CMD_REPLY]);
+		printk(KERN_INFO "tcmu daemon: command reply support %u.\n",
+		       tcmu_kern_cmd_reply_supported);
+	}
+
+	return 0;
+}
+
+static const struct genl_ops tcmu_genl_ops[] = {
+	{
+		.cmd	= TCMU_CMD_SET_FEATURES,
+		.flags	= GENL_ADMIN_PERM,
+		.policy	= tcmu_attr_policy,
+		.doit	= tcmu_genl_set_features,
+	},
+	{
+		.cmd	= TCMU_CMD_ADDED_DEVICE_DONE,
+		.flags	= GENL_ADMIN_PERM,
+		.policy	= tcmu_attr_policy,
+		.doit	= tcmu_genl_add_dev_done,
+	},
+	{
+		.cmd	= TCMU_CMD_REMOVED_DEVICE_DONE,
+		.flags	= GENL_ADMIN_PERM,
+		.policy	= tcmu_attr_policy,
+		.doit	= tcmu_genl_rm_dev_done,
+	},
+	{
+		.cmd	= TCMU_CMD_RECONFIG_DEVICE_DONE,
+		.flags	= GENL_ADMIN_PERM,
+		.policy	= tcmu_attr_policy,
+		.doit	= tcmu_genl_reconfig_dev_done,
+	},
+};
+
 /* Our generic netlink family */
 static struct genl_family tcmu_genl_family __ro_after_init = {
 	.module = THIS_MODULE,
 	.hdrsize = 0,
 	.name = "TCM-USER",
-	.version = 1,
+	.version = 2,
 	.maxattr = TCMU_ATTR_MAX,
 	.mcgrps = tcmu_mcgrps,
 	.n_mcgrps = ARRAY_SIZE(tcmu_mcgrps),
 	.netnsok = true,
+	.ops = tcmu_genl_ops,
+	.n_ops = ARRAY_SIZE(tcmu_genl_ops),
 };
 
 #define tcmu_cmd_set_dbi_cur(cmd, index) ((cmd)->dbi_cur = (index))
@@ -216,7 +342,6 @@ static inline bool tcmu_get_empty_block(struct tcmu_dev *udev,
 
 	page = radix_tree_lookup(&udev->data_blocks, dbi);
 	if (!page) {
-
 		if (atomic_add_return(1, &global_db_count) >
 					TCMU_GLOBAL_MAX_BLOCKS) {
 			atomic_dec(&global_db_count);
@@ -226,14 +351,11 @@ static inline bool tcmu_get_empty_block(struct tcmu_dev *udev,
 		/* try to get new page from the mm */
 		page = alloc_page(GFP_KERNEL);
 		if (!page)
-			return false;
+			goto err_alloc;
 
 		ret = radix_tree_insert(&udev->data_blocks, dbi, page);
-		if (ret) {
-			__free_page(page);
-			return false;
-		}
-
+		if (ret)
+			goto err_insert;
 	}
 
 	if (dbi > udev->dbi_max)
@@ -243,6 +365,11 @@ static inline bool tcmu_get_empty_block(struct tcmu_dev *udev,
 	tcmu_cmd_set_dbi(tcmu_cmd, dbi);
 
 	return true;
+err_insert:
+	__free_page(page);
+err_alloc:
+	atomic_dec(&global_db_count);
+	return false;
 }
 
 static bool tcmu_get_empty_blocks(struct tcmu_dev *udev,
@@ -401,7 +528,7 @@ static inline size_t get_block_offset_user(struct tcmu_dev *dev,
 		DATA_BLOCK_SIZE - remaining;
 }
 
-static inline size_t iov_tail(struct tcmu_dev *udev, struct iovec *iov)
+static inline size_t iov_tail(struct iovec *iov)
 {
 	return (size_t)iov->iov_base + iov->iov_len;
 }
@@ -436,11 +563,9 @@ static int scatter_data_area(struct tcmu_dev *udev,
 					block_remaining);
 			to_offset = get_block_offset_user(udev, dbi,
 					block_remaining);
-			offset = DATA_BLOCK_SIZE - block_remaining;
-			to = (void *)(unsigned long)to + offset;
 
 			if (*iov_cnt != 0 &&
-			    to_offset == iov_tail(udev, *iov)) {
+			    to_offset == iov_tail(*iov)) {
 				(*iov)->iov_len += copy_bytes;
 			} else {
 				new_iov(iov, iov_cnt, udev);
@@ -448,8 +573,10 @@ static int scatter_data_area(struct tcmu_dev *udev,
 				(*iov)->iov_len = copy_bytes;
 			}
 			if (copy_data) {
-				memcpy(to, from + sg->length - sg_remaining,
-					copy_bytes);
+				offset = DATA_BLOCK_SIZE - block_remaining;
+				memcpy(to + offset,
+				       from + sg->length - sg_remaining,
+				       copy_bytes);
 				tcmu_flush_dcache_range(to, copy_bytes);
 			}
 			sg_remaining -= copy_bytes;
@@ -510,9 +637,8 @@ static void gather_data_area(struct tcmu_dev *udev, struct tcmu_cmd *cmd,
 			copy_bytes = min_t(size_t, sg_remaining,
 					block_remaining);
 			offset = DATA_BLOCK_SIZE - block_remaining;
-			from = (void *)(unsigned long)from + offset;
 			tcmu_flush_dcache_range(from, copy_bytes);
-			memcpy(to + sg->length - sg_remaining, from,
+			memcpy(to + sg->length - sg_remaining, from + offset,
 					copy_bytes);
 
 			sg_remaining -= copy_bytes;
@@ -596,10 +722,7 @@ static bool is_ring_space_avail(struct tcmu_dev *udev, struct tcmu_cmd *cmd,
 		}
 	}
 
-	if (!tcmu_get_empty_blocks(udev, cmd))
-		return false;
-
-	return true;
+	return tcmu_get_empty_blocks(udev, cmd);
 }
 
 static inline size_t tcmu_cmd_get_base_cmd_size(size_t iov_cnt)
@@ -699,25 +822,24 @@ tcmu_queue_cmd_ring(struct tcmu_cmd *tcmu_cmd)
 		size_t pad_size = head_to_end(cmd_head, udev->cmdr_size);
 
 		entry = (void *) mb + CMDR_OFF + cmd_head;
-		tcmu_flush_dcache_range(entry, sizeof(*entry));
 		tcmu_hdr_set_op(&entry->hdr.len_op, TCMU_OP_PAD);
 		tcmu_hdr_set_len(&entry->hdr.len_op, pad_size);
 		entry->hdr.cmd_id = 0; /* not used for PAD */
 		entry->hdr.kflags = 0;
 		entry->hdr.uflags = 0;
+		tcmu_flush_dcache_range(entry, sizeof(*entry));
 
 		UPDATE_HEAD(mb->cmd_head, pad_size, udev->cmdr_size);
+		tcmu_flush_dcache_range(mb, sizeof(*mb));
 
 		cmd_head = mb->cmd_head % udev->cmdr_size; /* UAM */
 		WARN_ON(cmd_head != 0);
 	}
 
 	entry = (void *) mb + CMDR_OFF + cmd_head;
-	tcmu_flush_dcache_range(entry, sizeof(*entry));
+	memset(entry, 0, command_size);
 	tcmu_hdr_set_op(&entry->hdr.len_op, TCMU_OP_CMD);
 	entry->hdr.cmd_id = tcmu_cmd->cmd_id;
-	entry->hdr.kflags = 0;
-	entry->hdr.uflags = 0;
 
 	/* Handle allocating space from the data area */
 	tcmu_cmd_reset_dbi_cur(tcmu_cmd);
@@ -736,11 +858,10 @@ tcmu_queue_cmd_ring(struct tcmu_cmd *tcmu_cmd)
 		return TCM_LOGICAL_UNIT_COMMUNICATION_FAILURE;
 	}
 	entry->req.iov_cnt = iov_cnt;
-	entry->req.iov_dif_cnt = 0;
 
 	/* Handle BIDI commands */
+	iov_cnt = 0;
 	if (se_cmd->se_cmd_flags & SCF_BIDI) {
-		iov_cnt = 0;
 		iov++;
 		ret = scatter_data_area(udev, tcmu_cmd,
 					se_cmd->t_bidi_data_sg,
@@ -753,8 +874,8 @@ tcmu_queue_cmd_ring(struct tcmu_cmd *tcmu_cmd)
 			pr_err("tcmu: alloc and scatter bidi data failed\n");
 			return TCM_LOGICAL_UNIT_COMMUNICATION_FAILURE;
 		}
-		entry->req.iov_bidi_cnt = iov_cnt;
 	}
+	entry->req.iov_bidi_cnt = iov_cnt;
 
 	/*
 	 * Recalaulate the command's base size and size according
@@ -830,8 +951,7 @@ static void tcmu_handle_completion(struct tcmu_cmd *cmd, struct tcmu_cmd_entry *
 			cmd->se_cmd);
 		entry->rsp.scsi_status = SAM_STAT_CHECK_CONDITION;
 	} else if (entry->rsp.scsi_status == SAM_STAT_CHECK_CONDITION) {
-		memcpy(se_cmd->sense_buffer, entry->rsp.sense_buffer,
-			       se_cmd->scsi_sense_length);
+		transport_copy_sense_to_cmd(se_cmd, entry->rsp.sense_buffer);
 	} else if (se_cmd->se_cmd_flags & SCF_BIDI) {
 		/* Get Data-In buffer before clean up */
 		gather_data_area(udev, cmd, true);
@@ -989,6 +1109,9 @@ static struct se_device *tcmu_alloc_device(struct se_hba *hba, const char *name)
 	setup_timer(&udev->timeout, tcmu_device_timedout,
 		(unsigned long)udev);
 
+	init_waitqueue_head(&udev->nl_cmd_wq);
+	spin_lock_init(&udev->nl_cmd_lock);
+
 	return &udev->se_dev;
 }
 
@@ -1140,6 +1263,7 @@ static int tcmu_open(struct uio_info *info, struct inode *inode)
 		return -EBUSY;
 
 	udev->inode = inode;
+	kref_get(&udev->kref);
 
 	pr_debug("open\n");
 
@@ -1171,12 +1295,59 @@ static int tcmu_release(struct uio_info *info, struct inode *inode)
 	clear_bit(TCMU_DEV_BIT_OPEN, &udev->flags);
 
 	pr_debug("close\n");
-	/* release ref from configure */
+	/* release ref from open */
 	kref_put(&udev->kref, tcmu_dev_kref_release);
 	return 0;
 }
 
-static int tcmu_netlink_event(enum tcmu_genl_cmd cmd, const char *name, int minor)
+static void tcmu_init_genl_cmd_reply(struct tcmu_dev *udev, int cmd)
+{
+	struct tcmu_nl_cmd *nl_cmd = &udev->curr_nl_cmd;
+
+	if (!tcmu_kern_cmd_reply_supported)
+		return;
+relock:
+	spin_lock(&udev->nl_cmd_lock);
+
+	if (nl_cmd->cmd != TCMU_CMD_UNSPEC) {
+		spin_unlock(&udev->nl_cmd_lock);
+		pr_debug("sleeping for open nl cmd\n");
+		wait_event(udev->nl_cmd_wq, (nl_cmd->cmd == TCMU_CMD_UNSPEC));
+		goto relock;
+	}
+
+	memset(nl_cmd, 0, sizeof(*nl_cmd));
+	nl_cmd->cmd = cmd;
+	init_completion(&nl_cmd->complete);
+
+	spin_unlock(&udev->nl_cmd_lock);
+}
+
+static int tcmu_wait_genl_cmd_reply(struct tcmu_dev *udev)
+{
+	struct tcmu_nl_cmd *nl_cmd = &udev->curr_nl_cmd;
+	int ret;
+	DEFINE_WAIT(__wait);
+
+	if (!tcmu_kern_cmd_reply_supported)
+		return 0;
+
+	pr_debug("sleeping for nl reply\n");
+	wait_for_completion(&nl_cmd->complete);
+
+	spin_lock(&udev->nl_cmd_lock);
+	nl_cmd->cmd = TCMU_CMD_UNSPEC;
+	ret = nl_cmd->status;
+	nl_cmd->status = 0;
+	spin_unlock(&udev->nl_cmd_lock);
+
+	wake_up_all(&udev->nl_cmd_wq);
+
+	return ret;;
+}
+
+static int tcmu_netlink_event(struct tcmu_dev *udev, enum tcmu_genl_cmd cmd,
+			      int reconfig_attr, const void *reconfig_data)
 {
 	struct sk_buff *skb;
 	void *msg_header;
@@ -1190,22 +1361,51 @@ static int tcmu_netlink_event(enum tcmu_genl_cmd cmd, const char *name, int mino
 	if (!msg_header)
 		goto free_skb;
 
-	ret = nla_put_string(skb, TCMU_ATTR_DEVICE, name);
+	ret = nla_put_string(skb, TCMU_ATTR_DEVICE, udev->uio_info.name);
+	if (ret < 0)
+		goto free_skb;
+
+	ret = nla_put_u32(skb, TCMU_ATTR_MINOR, udev->uio_info.uio_dev->minor);
 	if (ret < 0)
 		goto free_skb;
 
-	ret = nla_put_u32(skb, TCMU_ATTR_MINOR, minor);
+	ret = nla_put_u32(skb, TCMU_ATTR_DEVICE_ID, udev->se_dev.dev_index);
 	if (ret < 0)
 		goto free_skb;
 
+	if (cmd == TCMU_CMD_RECONFIG_DEVICE) {
+		switch (reconfig_attr) {
+		case TCMU_ATTR_DEV_CFG:
+			ret = nla_put_string(skb, reconfig_attr, reconfig_data);
+			break;
+		case TCMU_ATTR_DEV_SIZE:
+			ret = nla_put_u64_64bit(skb, reconfig_attr,
+						*((u64 *)reconfig_data),
+						TCMU_ATTR_PAD);
+			break;
+		case TCMU_ATTR_WRITECACHE:
+			ret = nla_put_u8(skb, reconfig_attr,
+					  *((u8 *)reconfig_data));
+			break;
+		default:
+			BUG();
+		}
+
+		if (ret < 0)
+			goto free_skb;
+	}
+
 	genlmsg_end(skb, msg_header);
 
+	tcmu_init_genl_cmd_reply(udev, cmd);
+
 	ret = genlmsg_multicast_allns(&tcmu_genl_family, skb, 0,
 				TCMU_MCGRP_CONFIG, GFP_KERNEL);
-
 	/* We don't care if no one is listening */
 	if (ret == -ESRCH)
 		ret = 0;
+	if (!ret)
+		ret = tcmu_wait_genl_cmd_reply(udev);
 
 	return ret;
 free_skb:
@@ -1213,19 +1413,14 @@ free_skb:
 	return ret;
 }
 
-static int tcmu_configure_device(struct se_device *dev)
+static int tcmu_update_uio_info(struct tcmu_dev *udev)
 {
-	struct tcmu_dev *udev = TCMU_DEV(dev);
 	struct tcmu_hba *hba = udev->hba->hba_ptr;
 	struct uio_info *info;
-	struct tcmu_mailbox *mb;
-	size_t size;
-	size_t used;
-	int ret = 0;
+	size_t size, used;
 	char *str;
 
 	info = &udev->uio_info;
-
 	size = snprintf(NULL, 0, "tcm-user/%u/%s/%s", hba->host_id, udev->name,
 			udev->dev_config);
 	size += 1; /* for \0 */
@@ -1234,12 +1429,29 @@ static int tcmu_configure_device(struct se_device *dev)
 		return -ENOMEM;
 
 	used = snprintf(str, size, "tcm-user/%u/%s", hba->host_id, udev->name);
-
 	if (udev->dev_config[0])
 		snprintf(str + used, size - used, "/%s", udev->dev_config);
 
+	/* If the old string exists, free it */
+	kfree(info->name);
 	info->name = str;
 
+	return 0;
+}
+
+static int tcmu_configure_device(struct se_device *dev)
+{
+	struct tcmu_dev *udev = TCMU_DEV(dev);
+	struct uio_info *info;
+	struct tcmu_mailbox *mb;
+	int ret = 0;
+
+	ret = tcmu_update_uio_info(udev);
+	if (ret)
+		return ret;
+
+	info = &udev->uio_info;
+
 	udev->mb_addr = vzalloc(CMDR_SIZE);
 	if (!udev->mb_addr) {
 		ret = -ENOMEM;
@@ -1290,6 +1502,8 @@ static int tcmu_configure_device(struct se_device *dev)
 	/* Other attributes can be configured in userspace */
 	if (!dev->dev_attrib.hw_max_sectors)
 		dev->dev_attrib.hw_max_sectors = 128;
+	if (!dev->dev_attrib.emulate_write_cache)
+		dev->dev_attrib.emulate_write_cache = 0;
 	dev->dev_attrib.hw_queue_depth = 128;
 
 	/*
@@ -1298,8 +1512,7 @@ static int tcmu_configure_device(struct se_device *dev)
 	 */
 	kref_get(&udev->kref);
 
-	ret = tcmu_netlink_event(TCMU_CMD_ADDED_DEVICE, udev->uio_info.name,
-				 udev->uio_info.uio_dev->minor);
+	ret = tcmu_netlink_event(udev, TCMU_CMD_ADDED_DEVICE, 0, NULL);
 	if (ret)
 		goto err_netlink;
 
@@ -1355,6 +1568,14 @@ static void tcmu_blocks_release(struct tcmu_dev *udev)
 static void tcmu_free_device(struct se_device *dev)
 {
 	struct tcmu_dev *udev = TCMU_DEV(dev);
+
+	/* release ref from init */
+	kref_put(&udev->kref, tcmu_dev_kref_release);
+}
+
+static void tcmu_destroy_device(struct se_device *dev)
+{
+	struct tcmu_dev *udev = TCMU_DEV(dev);
 	struct tcmu_cmd *cmd;
 	bool all_expired = true;
 	int i;
@@ -1379,14 +1600,11 @@ static void tcmu_free_device(struct se_device *dev)
 
 	tcmu_blocks_release(udev);
 
-	if (tcmu_dev_configured(udev)) {
-		tcmu_netlink_event(TCMU_CMD_REMOVED_DEVICE, udev->uio_info.name,
-				   udev->uio_info.uio_dev->minor);
+	tcmu_netlink_event(udev, TCMU_CMD_REMOVED_DEVICE, 0, NULL);
 
-		uio_unregister_device(&udev->uio_info);
-	}
+	uio_unregister_device(&udev->uio_info);
 
-	/* release ref from init */
+	/* release ref from configure */
 	kref_put(&udev->kref, tcmu_dev_kref_release);
 }
 
@@ -1546,6 +1764,129 @@ static ssize_t tcmu_cmd_time_out_store(struct config_item *item, const char *pag
 }
 CONFIGFS_ATTR(tcmu_, cmd_time_out);
 
+static ssize_t tcmu_dev_config_show(struct config_item *item, char *page)
+{
+	struct se_dev_attrib *da = container_of(to_config_group(item),
+						struct se_dev_attrib, da_group);
+	struct tcmu_dev *udev = TCMU_DEV(da->da_dev);
+
+	return snprintf(page, PAGE_SIZE, "%s\n", udev->dev_config);
+}
+
+static ssize_t tcmu_dev_config_store(struct config_item *item, const char *page,
+				     size_t count)
+{
+	struct se_dev_attrib *da = container_of(to_config_group(item),
+						struct se_dev_attrib, da_group);
+	struct tcmu_dev *udev = TCMU_DEV(da->da_dev);
+	int ret, len;
+
+	len = strlen(page);
+	if (!len || len > TCMU_CONFIG_LEN - 1)
+		return -EINVAL;
+
+	/* Check if device has been configured before */
+	if (tcmu_dev_configured(udev)) {
+		ret = tcmu_netlink_event(udev, TCMU_CMD_RECONFIG_DEVICE,
+					 TCMU_ATTR_DEV_CFG, page);
+		if (ret) {
+			pr_err("Unable to reconfigure device\n");
+			return ret;
+		}
+		strlcpy(udev->dev_config, page, TCMU_CONFIG_LEN);
+
+		ret = tcmu_update_uio_info(udev);
+		if (ret)
+			return ret;
+		return count;
+	}
+	strlcpy(udev->dev_config, page, TCMU_CONFIG_LEN);
+
+	return count;
+}
+CONFIGFS_ATTR(tcmu_, dev_config);
+
+static ssize_t tcmu_dev_size_show(struct config_item *item, char *page)
+{
+	struct se_dev_attrib *da = container_of(to_config_group(item),
+						struct se_dev_attrib, da_group);
+	struct tcmu_dev *udev = TCMU_DEV(da->da_dev);
+
+	return snprintf(page, PAGE_SIZE, "%zu\n", udev->dev_size);
+}
+
+static ssize_t tcmu_dev_size_store(struct config_item *item, const char *page,
+				   size_t count)
+{
+	struct se_dev_attrib *da = container_of(to_config_group(item),
+						struct se_dev_attrib, da_group);
+	struct tcmu_dev *udev = TCMU_DEV(da->da_dev);
+	u64 val;
+	int ret;
+
+	ret = kstrtou64(page, 0, &val);
+	if (ret < 0)
+		return ret;
+
+	/* Check if device has been configured before */
+	if (tcmu_dev_configured(udev)) {
+		ret = tcmu_netlink_event(udev, TCMU_CMD_RECONFIG_DEVICE,
+					 TCMU_ATTR_DEV_SIZE, &val);
+		if (ret) {
+			pr_err("Unable to reconfigure device\n");
+			return ret;
+		}
+	}
+	udev->dev_size = val;
+	return count;
+}
+CONFIGFS_ATTR(tcmu_, dev_size);
+
+static ssize_t tcmu_emulate_write_cache_show(struct config_item *item,
+					     char *page)
+{
+	struct se_dev_attrib *da = container_of(to_config_group(item),
+					struct se_dev_attrib, da_group);
+
+	return snprintf(page, PAGE_SIZE, "%i\n", da->emulate_write_cache);
+}
+
+static ssize_t tcmu_emulate_write_cache_store(struct config_item *item,
+					      const char *page, size_t count)
+{
+	struct se_dev_attrib *da = container_of(to_config_group(item),
+					struct se_dev_attrib, da_group);
+	struct tcmu_dev *udev = TCMU_DEV(da->da_dev);
+	u8 val;
+	int ret;
+
+	ret = kstrtou8(page, 0, &val);
+	if (ret < 0)
+		return ret;
+
+	/* Check if device has been configured before */
+	if (tcmu_dev_configured(udev)) {
+		ret = tcmu_netlink_event(udev, TCMU_CMD_RECONFIG_DEVICE,
+					 TCMU_ATTR_WRITECACHE, &val);
+		if (ret) {
+			pr_err("Unable to reconfigure device\n");
+			return ret;
+		}
+	}
+
+	da->emulate_write_cache = val;
+	return count;
+}
+CONFIGFS_ATTR(tcmu_, emulate_write_cache);
+
+static struct configfs_attribute *tcmu_attrib_attrs[] = {
+	&tcmu_attr_cmd_time_out,
+	&tcmu_attr_dev_config,
+	&tcmu_attr_dev_size,
+	&tcmu_attr_emulate_write_cache,
+	NULL,
+};
+
 static struct configfs_attribute **tcmu_attrs;
 
 static struct target_backend_ops tcmu_ops = {
@@ -1556,6 +1897,7 @@ static struct target_backend_ops tcmu_ops = {
 	.detach_hba		= tcmu_detach_hba,
 	.alloc_device		= tcmu_alloc_device,
 	.configure_device	= tcmu_configure_device,
+	.destroy_device		= tcmu_destroy_device,
 	.free_device		= tcmu_free_device,
 	.parse_cdb		= tcmu_parse_cdb,
 	.set_configfs_dev_params = tcmu_set_configfs_dev_params,
@@ -1573,7 +1915,7 @@ static int unmap_thread_fn(void *data)
 	struct page *page;
 	int i;
 
-	while (1) {
+	while (!kthread_should_stop()) {
 		DEFINE_WAIT(__wait);
 
 		prepare_to_wait(&unmap_wait, &__wait, TASK_INTERRUPTIBLE);
@@ -1645,7 +1987,7 @@ static int unmap_thread_fn(void *data)
 
 static int __init tcmu_module_init(void)
 {
-	int ret, i, len = 0;
+	int ret, i, k, len = 0;
 
 	BUILD_BUG_ON((sizeof(struct tcmu_cmd_entry) % TCMU_OP_ALIGN_SIZE) != 0);
 
@@ -1670,7 +2012,10 @@ static int __init tcmu_module_init(void)
 	for (i = 0; passthrough_attrib_attrs[i] != NULL; i++) {
 		len += sizeof(struct configfs_attribute *);
 	}
-	len += sizeof(struct configfs_attribute *) * 2;
+	for (i = 0; tcmu_attrib_attrs[i] != NULL; i++) {
+		len += sizeof(struct configfs_attribute *);
+	}
+	len += sizeof(struct configfs_attribute *);
 
 	tcmu_attrs = kzalloc(len, GFP_KERNEL);
 	if (!tcmu_attrs) {
@@ -1681,7 +2026,10 @@ static int __init tcmu_module_init(void)
 	for (i = 0; passthrough_attrib_attrs[i] != NULL; i++) {
 		tcmu_attrs[i] = passthrough_attrib_attrs[i];
 	}
-	tcmu_attrs[i] = &tcmu_attr_cmd_time_out;
+	for (k = 0; tcmu_attrib_attrs[k] != NULL; k++) {
+		tcmu_attrs[i] = tcmu_attrib_attrs[k];
+		i++;
+	}
 	tcmu_ops.tb_dev_attrib_attrs = tcmu_attrs;
 
 	ret = transport_backend_register(&tcmu_ops);
diff --git a/drivers/target/target_core_xcopy.c b/drivers/target/target_core_xcopy.c
index cac5a20a4de0..9ee89e00cd77 100644
--- a/drivers/target/target_core_xcopy.c
+++ b/drivers/target/target_core_xcopy.c
@@ -40,6 +40,8 @@
 
 static struct workqueue_struct *xcopy_wq = NULL;
 
+static sense_reason_t target_parse_xcopy_cmd(struct xcopy_op *xop);
+
 static int target_xcopy_gen_naa_ieee(struct se_device *dev, unsigned char *buf)
 {
 	int off = 0;
@@ -53,48 +55,60 @@ static int target_xcopy_gen_naa_ieee(struct se_device *dev, unsigned char *buf)
 	return 0;
 }
 
-static int target_xcopy_locate_se_dev_e4(const unsigned char *dev_wwn,
-					struct se_device **found_dev)
+struct xcopy_dev_search_info {
+	const unsigned char *dev_wwn;
+	struct se_device *found_dev;
+};
+
+static int target_xcopy_locate_se_dev_e4_iter(struct se_device *se_dev,
+					      void *data)
 {
-	struct se_device *se_dev;
+	struct xcopy_dev_search_info *info = data;
 	unsigned char tmp_dev_wwn[XCOPY_NAA_IEEE_REGEX_LEN];
 	int rc;
 
-	mutex_lock(&g_device_mutex);
-	list_for_each_entry(se_dev, &g_device_list, g_dev_node) {
+	if (!se_dev->dev_attrib.emulate_3pc)
+		return 0;
 
-		if (!se_dev->dev_attrib.emulate_3pc)
-			continue;
+	memset(&tmp_dev_wwn[0], 0, XCOPY_NAA_IEEE_REGEX_LEN);
+	target_xcopy_gen_naa_ieee(se_dev, &tmp_dev_wwn[0]);
 
-		memset(&tmp_dev_wwn[0], 0, XCOPY_NAA_IEEE_REGEX_LEN);
-		target_xcopy_gen_naa_ieee(se_dev, &tmp_dev_wwn[0]);
+	rc = memcmp(&tmp_dev_wwn[0], info->dev_wwn, XCOPY_NAA_IEEE_REGEX_LEN);
+	if (rc != 0)
+		return 0;
 
-		rc = memcmp(&tmp_dev_wwn[0], dev_wwn, XCOPY_NAA_IEEE_REGEX_LEN);
-		if (rc != 0)
-			continue;
+	info->found_dev = se_dev;
+	pr_debug("XCOPY 0xe4: located se_dev: %p\n", se_dev);
 
-		*found_dev = se_dev;
-		pr_debug("XCOPY 0xe4: located se_dev: %p\n", se_dev);
+	rc = target_depend_item(&se_dev->dev_group.cg_item);
+	if (rc != 0) {
+		pr_err("configfs_depend_item attempt failed: %d for se_dev: %p\n",
+		       rc, se_dev);
+		return rc;
+	}
 
-		rc = target_depend_item(&se_dev->dev_group.cg_item);
-		if (rc != 0) {
-			pr_err("configfs_depend_item attempt failed:"
-				" %d for se_dev: %p\n", rc, se_dev);
-			mutex_unlock(&g_device_mutex);
-			return rc;
-		}
+	pr_debug("Called configfs_depend_item for se_dev: %p se_dev->se_dev_group: %p\n",
+		 se_dev, &se_dev->dev_group);
+	return 1;
+}
 
-		pr_debug("Called configfs_depend_item for se_dev: %p"
-			" se_dev->se_dev_group: %p\n", se_dev,
-			&se_dev->dev_group);
+static int target_xcopy_locate_se_dev_e4(const unsigned char *dev_wwn,
+					struct se_device **found_dev)
+{
+	struct xcopy_dev_search_info info;
+	int ret;
+
+	memset(&info, 0, sizeof(info));
+	info.dev_wwn = dev_wwn;
 
-		mutex_unlock(&g_device_mutex);
+	ret = target_for_each_device(target_xcopy_locate_se_dev_e4_iter, &info);
+	if (ret == 1) {
+		*found_dev = info.found_dev;
 		return 0;
+	} else {
+		pr_debug_ratelimited("Unable to locate 0xe4 descriptor for EXTENDED_COPY\n");
+		return -EINVAL;
 	}
-	mutex_unlock(&g_device_mutex);
-
-	pr_debug_ratelimited("Unable to locate 0xe4 descriptor for EXTENDED_COPY\n");
-	return -EINVAL;
 }
 
 static int target_xcopy_parse_tiddesc_e4(struct se_cmd *se_cmd, struct xcopy_op *xop,
@@ -311,9 +325,7 @@ static int target_xcopy_parse_segdesc_02(struct se_cmd *se_cmd, struct xcopy_op
 		(unsigned long long)xop->dst_lba);
 
 	if (dc != 0) {
-		xop->dbl = (desc[29] & 0xff) << 16;
-		xop->dbl |= (desc[30] & 0xff) << 8;
-		xop->dbl |= desc[31] & 0xff;
+		xop->dbl = get_unaligned_be24(&desc[29]);
 
 		pr_debug("XCOPY seg desc 0x02: DC=1 w/ dbl: %u\n", xop->dbl);
 	}
@@ -781,13 +793,24 @@ static int target_xcopy_write_destination(
 static void target_xcopy_do_work(struct work_struct *work)
 {
 	struct xcopy_op *xop = container_of(work, struct xcopy_op, xop_work);
-	struct se_device *src_dev = xop->src_dev, *dst_dev = xop->dst_dev;
 	struct se_cmd *ec_cmd = xop->xop_se_cmd;
-	sector_t src_lba = xop->src_lba, dst_lba = xop->dst_lba, end_lba;
+	struct se_device *src_dev, *dst_dev;
+	sector_t src_lba, dst_lba, end_lba;
 	unsigned int max_sectors;
-	int rc;
-	unsigned short nolb = xop->nolb, cur_nolb, max_nolb, copied_nolb = 0;
+	int rc = 0;
+	unsigned short nolb, cur_nolb, max_nolb, copied_nolb = 0;
+
+	if (target_parse_xcopy_cmd(xop) != TCM_NO_SENSE)
+		goto err_free;
 
+	if (WARN_ON_ONCE(!xop->src_dev) || WARN_ON_ONCE(!xop->dst_dev))
+		goto err_free;
+
+	src_dev = xop->src_dev;
+	dst_dev = xop->dst_dev;
+	src_lba = xop->src_lba;
+	dst_lba = xop->dst_lba;
+	nolb = xop->nolb;
 	end_lba = src_lba + nolb;
 	/*
 	 * Break up XCOPY I/O into hw_max_sectors sized I/O based on the
@@ -855,6 +878,8 @@ static void target_xcopy_do_work(struct work_struct *work)
 
 out:
 	xcopy_pt_undepend_remotedev(xop);
+
+err_free:
 	kfree(xop);
 	/*
 	 * Don't override an error scsi status if it has already been set
@@ -867,48 +892,22 @@ out:
 	target_complete_cmd(ec_cmd, ec_cmd->scsi_status);
 }
 
-sense_reason_t target_do_xcopy(struct se_cmd *se_cmd)
+/*
+ * Returns TCM_NO_SENSE upon success or a sense code != TCM_NO_SENSE if parsing
+ * fails.
+ */
+static sense_reason_t target_parse_xcopy_cmd(struct xcopy_op *xop)
 {
-	struct se_device *dev = se_cmd->se_dev;
-	struct xcopy_op *xop = NULL;
+	struct se_cmd *se_cmd = xop->xop_se_cmd;
 	unsigned char *p = NULL, *seg_desc;
-	unsigned int list_id, list_id_usage, sdll, inline_dl, sa;
+	unsigned int list_id, list_id_usage, sdll, inline_dl;
 	sense_reason_t ret = TCM_INVALID_PARAMETER_LIST;
 	int rc;
 	unsigned short tdll;
 
-	if (!dev->dev_attrib.emulate_3pc) {
-		pr_err("EXTENDED_COPY operation explicitly disabled\n");
-		return TCM_UNSUPPORTED_SCSI_OPCODE;
-	}
-
-	sa = se_cmd->t_task_cdb[1] & 0x1f;
-	if (sa != 0x00) {
-		pr_err("EXTENDED_COPY(LID4) not supported\n");
-		return TCM_UNSUPPORTED_SCSI_OPCODE;
-	}
-
-	if (se_cmd->data_length == 0) {
-		target_complete_cmd(se_cmd, SAM_STAT_GOOD);
-		return TCM_NO_SENSE;
-	}
-	if (se_cmd->data_length < XCOPY_HDR_LEN) {
-		pr_err("XCOPY parameter truncation: length %u < hdr_len %u\n",
-				se_cmd->data_length, XCOPY_HDR_LEN);
-		return TCM_PARAMETER_LIST_LENGTH_ERROR;
-	}
-
-	xop = kzalloc(sizeof(struct xcopy_op), GFP_KERNEL);
-	if (!xop) {
-		pr_err("Unable to allocate xcopy_op\n");
-		return TCM_OUT_OF_RESOURCES;
-	}
-	xop->xop_se_cmd = se_cmd;
-
 	p = transport_kmap_data_sg(se_cmd);
 	if (!p) {
 		pr_err("transport_kmap_data_sg() failed in target_do_xcopy\n");
-		kfree(xop);
 		return TCM_OUT_OF_RESOURCES;
 	}
 
@@ -977,18 +976,57 @@ sense_reason_t target_do_xcopy(struct se_cmd *se_cmd)
 	pr_debug("XCOPY: Processed %d target descriptors, length: %u\n", rc,
 				rc * XCOPY_TARGET_DESC_LEN);
 	transport_kunmap_data_sg(se_cmd);
-
-	INIT_WORK(&xop->xop_work, target_xcopy_do_work);
-	queue_work(xcopy_wq, &xop->xop_work);
 	return TCM_NO_SENSE;
 
 out:
 	if (p)
 		transport_kunmap_data_sg(se_cmd);
-	kfree(xop);
 	return ret;
 }
 
+sense_reason_t target_do_xcopy(struct se_cmd *se_cmd)
+{
+	struct se_device *dev = se_cmd->se_dev;
+	struct xcopy_op *xop;
+	unsigned int sa;
+
+	if (!dev->dev_attrib.emulate_3pc) {
+		pr_err("EXTENDED_COPY operation explicitly disabled\n");
+		return TCM_UNSUPPORTED_SCSI_OPCODE;
+	}
+
+	sa = se_cmd->t_task_cdb[1] & 0x1f;
+	if (sa != 0x00) {
+		pr_err("EXTENDED_COPY(LID4) not supported\n");
+		return TCM_UNSUPPORTED_SCSI_OPCODE;
+	}
+
+	if (se_cmd->data_length == 0) {
+		target_complete_cmd(se_cmd, SAM_STAT_GOOD);
+		return TCM_NO_SENSE;
+	}
+	if (se_cmd->data_length < XCOPY_HDR_LEN) {
+		pr_err("XCOPY parameter truncation: length %u < hdr_len %u\n",
+				se_cmd->data_length, XCOPY_HDR_LEN);
+		return TCM_PARAMETER_LIST_LENGTH_ERROR;
+	}
+
+	xop = kzalloc(sizeof(struct xcopy_op), GFP_KERNEL);
+	if (!xop)
+		goto err;
+	xop->xop_se_cmd = se_cmd;
+	INIT_WORK(&xop->xop_work, target_xcopy_do_work);
+	if (WARN_ON_ONCE(!queue_work(xcopy_wq, &xop->xop_work)))
+		goto free;
+	return TCM_NO_SENSE;
+
+free:
+	kfree(xop);
+
+err:
+	return TCM_OUT_OF_RESOURCES;
+}
+
 static sense_reason_t target_rcr_operating_parameters(struct se_cmd *se_cmd)
 {
 	unsigned char *p;
diff --git a/drivers/thermal/broadcom/bcm2835_thermal.c b/drivers/thermal/broadcom/bcm2835_thermal.c
index 0ecf80890c84..e6863c841662 100644
--- a/drivers/thermal/broadcom/bcm2835_thermal.c
+++ b/drivers/thermal/broadcom/bcm2835_thermal.c
@@ -245,7 +245,6 @@ static int bcm2835_thermal_probe(struct platform_device *pdev)
 		 */
 		err = tz->ops->get_trip_temp(tz, 0, &trip_temp);
 		if (err < 0) {
-			err = PTR_ERR(tz);
 			dev_err(&pdev->dev,
 				"Not able to read trip_temp: %d\n",
 				err);
diff --git a/drivers/thermal/cpu_cooling.c b/drivers/thermal/cpu_cooling.c
index 69d0f430b2d1..908a8014cf76 100644
--- a/drivers/thermal/cpu_cooling.c
+++ b/drivers/thermal/cpu_cooling.c
@@ -49,40 +49,45 @@
  */
 
 /**
- * struct power_table - frequency to power conversion
+ * struct freq_table - frequency table along with power entries
  * @frequency:	frequency in KHz
  * @power:	power in mW
  *
  * This structure is built when the cooling device registers and helps
- * in translating frequency to power and viceversa.
+ * in translating frequency to power and vice versa.
  */
-struct power_table {
+struct freq_table {
 	u32 frequency;
 	u32 power;
 };
 
 /**
+ * struct time_in_idle - Idle time stats
+ * @time: previous reading of the absolute time that this cpu was idle
+ * @timestamp: wall time of the last invocation of get_cpu_idle_time_us()
+ */
+struct time_in_idle {
+	u64 time;
+	u64 timestamp;
+};
+
+/**
  * struct cpufreq_cooling_device - data for cooling device with cpufreq
  * @id: unique integer value corresponding to each cpufreq_cooling_device
  *	registered.
- * @cool_dev: thermal_cooling_device pointer to keep track of the
- *	registered cooling device.
+ * @last_load: load measured by the latest call to cpufreq_get_requested_power()
  * @cpufreq_state: integer value representing the current state of cpufreq
  *	cooling	devices.
  * @clipped_freq: integer value representing the absolute value of the clipped
  *	frequency.
  * @max_level: maximum cooling level. One less than total number of valid
  *	cpufreq frequencies.
- * @allowed_cpus: all the cpus involved for this cpufreq_cooling_device.
+ * @freq_table: Freq table in descending order of frequencies
+ * @cdev: thermal_cooling_device pointer to keep track of the
+ *	registered cooling device.
+ * @policy: cpufreq policy.
  * @node: list_head to link all cpufreq_cooling_device together.
- * @last_load: load measured by the latest call to cpufreq_get_requested_power()
- * @time_in_idle: previous reading of the absolute time that this cpu was idle
- * @time_in_idle_timestamp: wall time of the last invocation of
- *	get_cpu_idle_time_us()
- * @dyn_power_table: array of struct power_table for frequency to power
- *	conversion, sorted in ascending order.
- * @dyn_power_table_entries: number of entries in the @dyn_power_table array
- * @cpu_dev: the first cpu_device from @allowed_cpus that has OPPs registered
+ * @idle_time: idle time stats
  * @plat_get_static_power: callback to calculate the static power
  *
  * This structure is required for keeping information of each registered
@@ -90,81 +95,45 @@ struct power_table {
  */
 struct cpufreq_cooling_device {
 	int id;
-	struct thermal_cooling_device *cool_dev;
+	u32 last_load;
 	unsigned int cpufreq_state;
 	unsigned int clipped_freq;
 	unsigned int max_level;
-	unsigned int *freq_table;	/* In descending order */
-	struct cpumask allowed_cpus;
+	struct freq_table *freq_table;	/* In descending order */
+	struct thermal_cooling_device *cdev;
+	struct cpufreq_policy *policy;
 	struct list_head node;
-	u32 last_load;
-	u64 *time_in_idle;
-	u64 *time_in_idle_timestamp;
-	struct power_table *dyn_power_table;
-	int dyn_power_table_entries;
-	struct device *cpu_dev;
+	struct time_in_idle *idle_time;
 	get_static_t plat_get_static_power;
 };
-static DEFINE_IDA(cpufreq_ida);
 
+static DEFINE_IDA(cpufreq_ida);
 static DEFINE_MUTEX(cooling_list_lock);
-static LIST_HEAD(cpufreq_dev_list);
+static LIST_HEAD(cpufreq_cdev_list);
 
 /* Below code defines functions to be used for cpufreq as cooling device */
 
 /**
  * get_level: Find the level for a particular frequency
- * @cpufreq_dev: cpufreq_dev for which the property is required
+ * @cpufreq_cdev: cpufreq_cdev for which the property is required
  * @freq: Frequency
  *
- * Return: level on success, THERMAL_CSTATE_INVALID on error.
+ * Return: level corresponding to the frequency.
  */
-static unsigned long get_level(struct cpufreq_cooling_device *cpufreq_dev,
+static unsigned long get_level(struct cpufreq_cooling_device *cpufreq_cdev,
 			       unsigned int freq)
 {
+	struct freq_table *freq_table = cpufreq_cdev->freq_table;
 	unsigned long level;
 
-	for (level = 0; level <= cpufreq_dev->max_level; level++) {
-		if (freq == cpufreq_dev->freq_table[level])
-			return level;
-
-		if (freq > cpufreq_dev->freq_table[level])
+	for (level = 1; level <= cpufreq_cdev->max_level; level++)
+		if (freq > freq_table[level].frequency)
 			break;
-	}
 
-	return THERMAL_CSTATE_INVALID;
+	return level - 1;
 }
 
 /**
- * cpufreq_cooling_get_level - for a given cpu, return the cooling level.
- * @cpu: cpu for which the level is required
- * @freq: the frequency of interest
- *
- * This function will match the cooling level corresponding to the
- * requested @freq and return it.
- *
- * Return: The matched cooling level on success or THERMAL_CSTATE_INVALID
- * otherwise.
- */
-unsigned long cpufreq_cooling_get_level(unsigned int cpu, unsigned int freq)
-{
-	struct cpufreq_cooling_device *cpufreq_dev;
-
-	mutex_lock(&cooling_list_lock);
-	list_for_each_entry(cpufreq_dev, &cpufreq_dev_list, node) {
-		if (cpumask_test_cpu(cpu, &cpufreq_dev->allowed_cpus)) {
-			mutex_unlock(&cooling_list_lock);
-			return get_level(cpufreq_dev, freq);
-		}
-	}
-	mutex_unlock(&cooling_list_lock);
-
-	pr_err("%s: cpu:%d not part of any cooling device\n", __func__, cpu);
-	return THERMAL_CSTATE_INVALID;
-}
-EXPORT_SYMBOL_GPL(cpufreq_cooling_get_level);
-
-/**
  * cpufreq_thermal_notifier - notifier callback for cpufreq policy change.
  * @nb:	struct notifier_block * with callback info.
  * @event: value showing cpufreq event for which this function invoked.
@@ -181,14 +150,18 @@ static int cpufreq_thermal_notifier(struct notifier_block *nb,
 {
 	struct cpufreq_policy *policy = data;
 	unsigned long clipped_freq;
-	struct cpufreq_cooling_device *cpufreq_dev;
+	struct cpufreq_cooling_device *cpufreq_cdev;
 
 	if (event != CPUFREQ_ADJUST)
 		return NOTIFY_DONE;
 
 	mutex_lock(&cooling_list_lock);
-	list_for_each_entry(cpufreq_dev, &cpufreq_dev_list, node) {
-		if (!cpumask_test_cpu(policy->cpu, &cpufreq_dev->allowed_cpus))
+	list_for_each_entry(cpufreq_cdev, &cpufreq_cdev_list, node) {
+		/*
+		 * A new copy of the policy is sent to the notifier and can't
+		 * compare that directly.
+		 */
+		if (policy->cpu != cpufreq_cdev->policy->cpu)
 			continue;
 
 		/*
@@ -202,7 +175,7 @@ static int cpufreq_thermal_notifier(struct notifier_block *nb,
 		 * But, if clipped_freq is greater than policy->max, we don't
 		 * need to do anything.
 		 */
-		clipped_freq = cpufreq_dev->clipped_freq;
+		clipped_freq = cpufreq_cdev->clipped_freq;
 
 		if (policy->max > clipped_freq)
 			cpufreq_verify_within_limits(policy, 0, clipped_freq);
@@ -214,63 +187,63 @@ static int cpufreq_thermal_notifier(struct notifier_block *nb,
 }
 
 /**
- * build_dyn_power_table() - create a dynamic power to frequency table
- * @cpufreq_device:	the cpufreq cooling device in which to store the table
+ * update_freq_table() - Update the freq table with power numbers
+ * @cpufreq_cdev:	the cpufreq cooling device in which to update the table
  * @capacitance: dynamic power coefficient for these cpus
  *
- * Build a dynamic power to frequency table for this cpu and store it
- * in @cpufreq_device.  This table will be used in cpu_power_to_freq() and
- * cpu_freq_to_power() to convert between power and frequency
- * efficiently.  Power is stored in mW, frequency in KHz.  The
- * resulting table is in ascending order.
+ * Update the freq table with power numbers.  This table will be used in
+ * cpu_power_to_freq() and cpu_freq_to_power() to convert between power and
+ * frequency efficiently.  Power is stored in mW, frequency in KHz.  The
+ * resulting table is in descending order.
  *
  * Return: 0 on success, -EINVAL if there are no OPPs for any CPUs,
- * -ENOMEM if we run out of memory or -EAGAIN if an OPP was
- * added/enabled while the function was executing.
+ * or -ENOMEM if we run out of memory.
  */
-static int build_dyn_power_table(struct cpufreq_cooling_device *cpufreq_device,
-				 u32 capacitance)
+static int update_freq_table(struct cpufreq_cooling_device *cpufreq_cdev,
+			     u32 capacitance)
 {
-	struct power_table *power_table;
+	struct freq_table *freq_table = cpufreq_cdev->freq_table;
 	struct dev_pm_opp *opp;
 	struct device *dev = NULL;
-	int num_opps = 0, cpu, i, ret = 0;
-	unsigned long freq;
-
-	for_each_cpu(cpu, &cpufreq_device->allowed_cpus) {
-		dev = get_cpu_device(cpu);
-		if (!dev) {
-			dev_warn(&cpufreq_device->cool_dev->device,
-				 "No cpu device for cpu %d\n", cpu);
-			continue;
-		}
+	int num_opps = 0, cpu = cpufreq_cdev->policy->cpu, i;
 
-		num_opps = dev_pm_opp_get_opp_count(dev);
-		if (num_opps > 0)
-			break;
-		else if (num_opps < 0)
-			return num_opps;
+	dev = get_cpu_device(cpu);
+	if (unlikely(!dev)) {
+		dev_warn(&cpufreq_cdev->cdev->device,
+			 "No cpu device for cpu %d\n", cpu);
+		return -ENODEV;
 	}
 
-	if (num_opps == 0)
-		return -EINVAL;
+	num_opps = dev_pm_opp_get_opp_count(dev);
+	if (num_opps < 0)
+		return num_opps;
 
-	power_table = kcalloc(num_opps, sizeof(*power_table), GFP_KERNEL);
-	if (!power_table)
-		return -ENOMEM;
+	/*
+	 * The cpufreq table is also built from the OPP table and so the count
+	 * should match.
+	 */
+	if (num_opps != cpufreq_cdev->max_level + 1) {
+		dev_warn(dev, "Number of OPPs not matching with max_levels\n");
+		return -EINVAL;
+	}
 
-	for (freq = 0, i = 0;
-	     opp = dev_pm_opp_find_freq_ceil(dev, &freq), !IS_ERR(opp);
-	     freq++, i++) {
-		u32 freq_mhz, voltage_mv;
+	for (i = 0; i <= cpufreq_cdev->max_level; i++) {
+		unsigned long freq = freq_table[i].frequency * 1000;
+		u32 freq_mhz = freq_table[i].frequency / 1000;
 		u64 power;
+		u32 voltage_mv;
 
-		if (i >= num_opps) {
-			ret = -EAGAIN;
-			goto free_power_table;
+		/*
+		 * Find ceil frequency as 'freq' may be slightly lower than OPP
+		 * freq due to truncation while converting to kHz.
+		 */
+		opp = dev_pm_opp_find_freq_ceil(dev, &freq);
+		if (IS_ERR(opp)) {
+			dev_err(dev, "failed to get opp for %lu frequency\n",
+				freq);
+			return -EINVAL;
 		}
 
-		freq_mhz = freq / 1000000;
 		voltage_mv = dev_pm_opp_get_voltage(opp) / 1000;
 		dev_pm_opp_put(opp);
 
@@ -281,89 +254,73 @@ static int build_dyn_power_table(struct cpufreq_cooling_device *cpufreq_device,
 		power = (u64)capacitance * freq_mhz * voltage_mv * voltage_mv;
 		do_div(power, 1000000000);
 
-		/* frequency is stored in power_table in KHz */
-		power_table[i].frequency = freq / 1000;
-
 		/* power is stored in mW */
-		power_table[i].power = power;
+		freq_table[i].power = power;
 	}
 
-	if (i != num_opps) {
-		ret = PTR_ERR(opp);
-		goto free_power_table;
-	}
-
-	cpufreq_device->cpu_dev = dev;
-	cpufreq_device->dyn_power_table = power_table;
-	cpufreq_device->dyn_power_table_entries = i;
-
 	return 0;
-
-free_power_table:
-	kfree(power_table);
-
-	return ret;
 }
 
-static u32 cpu_freq_to_power(struct cpufreq_cooling_device *cpufreq_device,
+static u32 cpu_freq_to_power(struct cpufreq_cooling_device *cpufreq_cdev,
 			     u32 freq)
 {
 	int i;
-	struct power_table *pt = cpufreq_device->dyn_power_table;
+	struct freq_table *freq_table = cpufreq_cdev->freq_table;
 
-	for (i = 1; i < cpufreq_device->dyn_power_table_entries; i++)
-		if (freq < pt[i].frequency)
+	for (i = 1; i <= cpufreq_cdev->max_level; i++)
+		if (freq > freq_table[i].frequency)
 			break;
 
-	return pt[i - 1].power;
+	return freq_table[i - 1].power;
 }
 
-static u32 cpu_power_to_freq(struct cpufreq_cooling_device *cpufreq_device,
+static u32 cpu_power_to_freq(struct cpufreq_cooling_device *cpufreq_cdev,
 			     u32 power)
 {
 	int i;
-	struct power_table *pt = cpufreq_device->dyn_power_table;
+	struct freq_table *freq_table = cpufreq_cdev->freq_table;
 
-	for (i = 1; i < cpufreq_device->dyn_power_table_entries; i++)
-		if (power < pt[i].power)
+	for (i = 1; i <= cpufreq_cdev->max_level; i++)
+		if (power > freq_table[i].power)
 			break;
 
-	return pt[i - 1].frequency;
+	return freq_table[i - 1].frequency;
 }
 
 /**
  * get_load() - get load for a cpu since last updated
- * @cpufreq_device:	&struct cpufreq_cooling_device for this cpu
+ * @cpufreq_cdev:	&struct cpufreq_cooling_device for this cpu
  * @cpu:	cpu number
- * @cpu_idx:	index of the cpu in cpufreq_device->allowed_cpus
+ * @cpu_idx:	index of the cpu in time_in_idle*
  *
  * Return: The average load of cpu @cpu in percentage since this
  * function was last called.
  */
-static u32 get_load(struct cpufreq_cooling_device *cpufreq_device, int cpu,
+static u32 get_load(struct cpufreq_cooling_device *cpufreq_cdev, int cpu,
 		    int cpu_idx)
 {
 	u32 load;
 	u64 now, now_idle, delta_time, delta_idle;
+	struct time_in_idle *idle_time = &cpufreq_cdev->idle_time[cpu_idx];
 
 	now_idle = get_cpu_idle_time(cpu, &now, 0);
-	delta_idle = now_idle - cpufreq_device->time_in_idle[cpu_idx];
-	delta_time = now - cpufreq_device->time_in_idle_timestamp[cpu_idx];
+	delta_idle = now_idle - idle_time->time;
+	delta_time = now - idle_time->timestamp;
 
 	if (delta_time <= delta_idle)
 		load = 0;
 	else
 		load = div64_u64(100 * (delta_time - delta_idle), delta_time);
 
-	cpufreq_device->time_in_idle[cpu_idx] = now_idle;
-	cpufreq_device->time_in_idle_timestamp[cpu_idx] = now;
+	idle_time->time = now_idle;
+	idle_time->timestamp = now;
 
 	return load;
 }
 
 /**
  * get_static_power() - calculate the static power consumed by the cpus
- * @cpufreq_device:	struct &cpufreq_cooling_device for this cpu cdev
+ * @cpufreq_cdev:	struct &cpufreq_cooling_device for this cpu cdev
  * @tz:		thermal zone device in which we're operating
  * @freq:	frequency in KHz
  * @power:	pointer in which to store the calculated static power
@@ -376,26 +333,28 @@ static u32 get_load(struct cpufreq_cooling_device *cpufreq_device, int cpu,
  *
  * Return: 0 on success, -E* on failure.
  */
-static int get_static_power(struct cpufreq_cooling_device *cpufreq_device,
+static int get_static_power(struct cpufreq_cooling_device *cpufreq_cdev,
 			    struct thermal_zone_device *tz, unsigned long freq,
 			    u32 *power)
 {
 	struct dev_pm_opp *opp;
 	unsigned long voltage;
-	struct cpumask *cpumask = &cpufreq_device->allowed_cpus;
+	struct cpufreq_policy *policy = cpufreq_cdev->policy;
+	struct cpumask *cpumask = policy->related_cpus;
 	unsigned long freq_hz = freq * 1000;
+	struct device *dev;
 
-	if (!cpufreq_device->plat_get_static_power ||
-	    !cpufreq_device->cpu_dev) {
+	if (!cpufreq_cdev->plat_get_static_power) {
 		*power = 0;
 		return 0;
 	}
 
-	opp = dev_pm_opp_find_freq_exact(cpufreq_device->cpu_dev, freq_hz,
-					 true);
+	dev = get_cpu_device(policy->cpu);
+	WARN_ON(!dev);
+
+	opp = dev_pm_opp_find_freq_exact(dev, freq_hz, true);
 	if (IS_ERR(opp)) {
-		dev_warn_ratelimited(cpufreq_device->cpu_dev,
-				     "Failed to find OPP for frequency %lu: %ld\n",
+		dev_warn_ratelimited(dev, "Failed to find OPP for frequency %lu: %ld\n",
 				     freq_hz, PTR_ERR(opp));
 		return -EINVAL;
 	}
@@ -404,31 +363,30 @@ static int get_static_power(struct cpufreq_cooling_device *cpufreq_device,
 	dev_pm_opp_put(opp);
 
 	if (voltage == 0) {
-		dev_err_ratelimited(cpufreq_device->cpu_dev,
-				    "Failed to get voltage for frequency %lu\n",
+		dev_err_ratelimited(dev, "Failed to get voltage for frequency %lu\n",
 				    freq_hz);
 		return -EINVAL;
 	}
 
-	return cpufreq_device->plat_get_static_power(cpumask, tz->passive_delay,
-						     voltage, power);
+	return cpufreq_cdev->plat_get_static_power(cpumask, tz->passive_delay,
+						  voltage, power);
 }
 
 /**
  * get_dynamic_power() - calculate the dynamic power
- * @cpufreq_device:	&cpufreq_cooling_device for this cdev
+ * @cpufreq_cdev:	&cpufreq_cooling_device for this cdev
  * @freq:	current frequency
  *
  * Return: the dynamic power consumed by the cpus described by
- * @cpufreq_device.
+ * @cpufreq_cdev.
  */
-static u32 get_dynamic_power(struct cpufreq_cooling_device *cpufreq_device,
+static u32 get_dynamic_power(struct cpufreq_cooling_device *cpufreq_cdev,
 			     unsigned long freq)
 {
 	u32 raw_cpu_power;
 
-	raw_cpu_power = cpu_freq_to_power(cpufreq_device, freq);
-	return (raw_cpu_power * cpufreq_device->last_load) / 100;
+	raw_cpu_power = cpu_freq_to_power(cpufreq_cdev, freq);
+	return (raw_cpu_power * cpufreq_cdev->last_load) / 100;
 }
 
 /* cpufreq cooling device callback functions are defined below */
@@ -446,9 +404,9 @@ static u32 get_dynamic_power(struct cpufreq_cooling_device *cpufreq_device,
 static int cpufreq_get_max_state(struct thermal_cooling_device *cdev,
 				 unsigned long *state)
 {
-	struct cpufreq_cooling_device *cpufreq_device = cdev->devdata;
+	struct cpufreq_cooling_device *cpufreq_cdev = cdev->devdata;
 
-	*state = cpufreq_device->max_level;
+	*state = cpufreq_cdev->max_level;
 	return 0;
 }
 
@@ -465,9 +423,9 @@ static int cpufreq_get_max_state(struct thermal_cooling_device *cdev,
 static int cpufreq_get_cur_state(struct thermal_cooling_device *cdev,
 				 unsigned long *state)
 {
-	struct cpufreq_cooling_device *cpufreq_device = cdev->devdata;
+	struct cpufreq_cooling_device *cpufreq_cdev = cdev->devdata;
 
-	*state = cpufreq_device->cpufreq_state;
+	*state = cpufreq_cdev->cpufreq_state;
 
 	return 0;
 }
@@ -485,23 +443,22 @@ static int cpufreq_get_cur_state(struct thermal_cooling_device *cdev,
 static int cpufreq_set_cur_state(struct thermal_cooling_device *cdev,
 				 unsigned long state)
 {
-	struct cpufreq_cooling_device *cpufreq_device = cdev->devdata;
-	unsigned int cpu = cpumask_any(&cpufreq_device->allowed_cpus);
+	struct cpufreq_cooling_device *cpufreq_cdev = cdev->devdata;
 	unsigned int clip_freq;
 
 	/* Request state should be less than max_level */
-	if (WARN_ON(state > cpufreq_device->max_level))
+	if (WARN_ON(state > cpufreq_cdev->max_level))
 		return -EINVAL;
 
 	/* Check if the old cooling action is same as new cooling action */
-	if (cpufreq_device->cpufreq_state == state)
+	if (cpufreq_cdev->cpufreq_state == state)
 		return 0;
 
-	clip_freq = cpufreq_device->freq_table[state];
-	cpufreq_device->cpufreq_state = state;
-	cpufreq_device->clipped_freq = clip_freq;
+	clip_freq = cpufreq_cdev->freq_table[state].frequency;
+	cpufreq_cdev->cpufreq_state = state;
+	cpufreq_cdev->clipped_freq = clip_freq;
 
-	cpufreq_update_policy(cpu);
+	cpufreq_update_policy(cpufreq_cdev->policy->cpu);
 
 	return 0;
 }
@@ -536,33 +493,23 @@ static int cpufreq_get_requested_power(struct thermal_cooling_device *cdev,
 	unsigned long freq;
 	int i = 0, cpu, ret;
 	u32 static_power, dynamic_power, total_load = 0;
-	struct cpufreq_cooling_device *cpufreq_device = cdev->devdata;
+	struct cpufreq_cooling_device *cpufreq_cdev = cdev->devdata;
+	struct cpufreq_policy *policy = cpufreq_cdev->policy;
 	u32 *load_cpu = NULL;
 
-	cpu = cpumask_any_and(&cpufreq_device->allowed_cpus, cpu_online_mask);
-
-	/*
-	 * All the CPUs are offline, thus the requested power by
-	 * the cdev is 0
-	 */
-	if (cpu >= nr_cpu_ids) {
-		*power = 0;
-		return 0;
-	}
-
-	freq = cpufreq_quick_get(cpu);
+	freq = cpufreq_quick_get(policy->cpu);
 
 	if (trace_thermal_power_cpu_get_power_enabled()) {
-		u32 ncpus = cpumask_weight(&cpufreq_device->allowed_cpus);
+		u32 ncpus = cpumask_weight(policy->related_cpus);
 
 		load_cpu = kcalloc(ncpus, sizeof(*load_cpu), GFP_KERNEL);
 	}
 
-	for_each_cpu(cpu, &cpufreq_device->allowed_cpus) {
+	for_each_cpu(cpu, policy->related_cpus) {
 		u32 load;
 
 		if (cpu_online(cpu))
-			load = get_load(cpufreq_device, cpu, i);
+			load = get_load(cpufreq_cdev, cpu, i);
 		else
 			load = 0;
 
@@ -573,19 +520,19 @@ static int cpufreq_get_requested_power(struct thermal_cooling_device *cdev,
 		i++;
 	}
 
-	cpufreq_device->last_load = total_load;
+	cpufreq_cdev->last_load = total_load;
 
-	dynamic_power = get_dynamic_power(cpufreq_device, freq);
-	ret = get_static_power(cpufreq_device, tz, freq, &static_power);
+	dynamic_power = get_dynamic_power(cpufreq_cdev, freq);
+	ret = get_static_power(cpufreq_cdev, tz, freq, &static_power);
 	if (ret) {
 		kfree(load_cpu);
 		return ret;
 	}
 
 	if (load_cpu) {
-		trace_thermal_power_cpu_get_power(
-			&cpufreq_device->allowed_cpus,
-			freq, load_cpu, i, dynamic_power, static_power);
+		trace_thermal_power_cpu_get_power(policy->related_cpus, freq,
+						  load_cpu, i, dynamic_power,
+						  static_power);
 
 		kfree(load_cpu);
 	}
@@ -614,38 +561,23 @@ static int cpufreq_state2power(struct thermal_cooling_device *cdev,
 			       unsigned long state, u32 *power)
 {
 	unsigned int freq, num_cpus;
-	cpumask_var_t cpumask;
 	u32 static_power, dynamic_power;
 	int ret;
-	struct cpufreq_cooling_device *cpufreq_device = cdev->devdata;
-
-	if (!alloc_cpumask_var(&cpumask, GFP_KERNEL))
-		return -ENOMEM;
-
-	cpumask_and(cpumask, &cpufreq_device->allowed_cpus, cpu_online_mask);
-	num_cpus = cpumask_weight(cpumask);
+	struct cpufreq_cooling_device *cpufreq_cdev = cdev->devdata;
 
-	/* None of our cpus are online, so no power */
-	if (num_cpus == 0) {
-		*power = 0;
-		ret = 0;
-		goto out;
-	}
+	/* Request state should be less than max_level */
+	if (WARN_ON(state > cpufreq_cdev->max_level))
+		return -EINVAL;
 
-	freq = cpufreq_device->freq_table[state];
-	if (!freq) {
-		ret = -EINVAL;
-		goto out;
-	}
+	num_cpus = cpumask_weight(cpufreq_cdev->policy->cpus);
 
-	dynamic_power = cpu_freq_to_power(cpufreq_device, freq) * num_cpus;
-	ret = get_static_power(cpufreq_device, tz, freq, &static_power);
+	freq = cpufreq_cdev->freq_table[state].frequency;
+	dynamic_power = cpu_freq_to_power(cpufreq_cdev, freq) * num_cpus;
+	ret = get_static_power(cpufreq_cdev, tz, freq, &static_power);
 	if (ret)
-		goto out;
+		return ret;
 
 	*power = static_power + dynamic_power;
-out:
-	free_cpumask_var(cpumask);
 	return ret;
 }
 
@@ -673,39 +605,27 @@ static int cpufreq_power2state(struct thermal_cooling_device *cdev,
 			       struct thermal_zone_device *tz, u32 power,
 			       unsigned long *state)
 {
-	unsigned int cpu, cur_freq, target_freq;
+	unsigned int cur_freq, target_freq;
 	int ret;
 	s32 dyn_power;
 	u32 last_load, normalised_power, static_power;
-	struct cpufreq_cooling_device *cpufreq_device = cdev->devdata;
+	struct cpufreq_cooling_device *cpufreq_cdev = cdev->devdata;
+	struct cpufreq_policy *policy = cpufreq_cdev->policy;
 
-	cpu = cpumask_any_and(&cpufreq_device->allowed_cpus, cpu_online_mask);
-
-	/* None of our cpus are online */
-	if (cpu >= nr_cpu_ids)
-		return -ENODEV;
-
-	cur_freq = cpufreq_quick_get(cpu);
-	ret = get_static_power(cpufreq_device, tz, cur_freq, &static_power);
+	cur_freq = cpufreq_quick_get(policy->cpu);
+	ret = get_static_power(cpufreq_cdev, tz, cur_freq, &static_power);
 	if (ret)
 		return ret;
 
 	dyn_power = power - static_power;
 	dyn_power = dyn_power > 0 ? dyn_power : 0;
-	last_load = cpufreq_device->last_load ?: 1;
+	last_load = cpufreq_cdev->last_load ?: 1;
 	normalised_power = (dyn_power * 100) / last_load;
-	target_freq = cpu_power_to_freq(cpufreq_device, normalised_power);
+	target_freq = cpu_power_to_freq(cpufreq_cdev, normalised_power);
 
-	*state = cpufreq_cooling_get_level(cpu, target_freq);
-	if (*state == THERMAL_CSTATE_INVALID) {
-		dev_err_ratelimited(&cdev->device,
-				    "Failed to convert %dKHz for cpu %d into a cdev state\n",
-				    target_freq, cpu);
-		return -EINVAL;
-	}
-
-	trace_thermal_power_cpu_limit(&cpufreq_device->allowed_cpus,
-				      target_freq, *state, power);
+	*state = get_level(cpufreq_cdev, target_freq);
+	trace_thermal_power_cpu_limit(policy->related_cpus, target_freq, *state,
+				      power);
 	return 0;
 }
 
@@ -748,7 +668,7 @@ static unsigned int find_next_max(struct cpufreq_frequency_table *table,
 /**
  * __cpufreq_cooling_register - helper function to create cpufreq cooling device
  * @np: a valid struct device_node to the cooling device device tree node
- * @clip_cpus: cpumask of cpus where the frequency constraints will happen.
+ * @policy: cpufreq policy
  * Normally this should be same as cpufreq policy->related_cpus.
  * @capacitance: dynamic power coefficient for these cpus
  * @plat_static_func: function to calculate the static power consumed by these
@@ -764,102 +684,68 @@ static unsigned int find_next_max(struct cpufreq_frequency_table *table,
  */
 static struct thermal_cooling_device *
 __cpufreq_cooling_register(struct device_node *np,
-			const struct cpumask *clip_cpus, u32 capacitance,
+			struct cpufreq_policy *policy, u32 capacitance,
 			get_static_t plat_static_func)
 {
-	struct cpufreq_policy *policy;
-	struct thermal_cooling_device *cool_dev;
-	struct cpufreq_cooling_device *cpufreq_dev;
+	struct thermal_cooling_device *cdev;
+	struct cpufreq_cooling_device *cpufreq_cdev;
 	char dev_name[THERMAL_NAME_LENGTH];
-	struct cpufreq_frequency_table *pos, *table;
-	cpumask_var_t temp_mask;
 	unsigned int freq, i, num_cpus;
 	int ret;
 	struct thermal_cooling_device_ops *cooling_ops;
 	bool first;
 
-	if (!alloc_cpumask_var(&temp_mask, GFP_KERNEL))
-		return ERR_PTR(-ENOMEM);
-
-	cpumask_and(temp_mask, clip_cpus, cpu_online_mask);
-	policy = cpufreq_cpu_get(cpumask_first(temp_mask));
-	if (!policy) {
-		pr_debug("%s: CPUFreq policy not found\n", __func__);
-		cool_dev = ERR_PTR(-EPROBE_DEFER);
-		goto free_cpumask;
+	if (IS_ERR_OR_NULL(policy)) {
+		pr_err("%s: cpufreq policy isn't valid: %p", __func__, policy);
+		return ERR_PTR(-EINVAL);
 	}
 
-	table = policy->freq_table;
-	if (!table) {
-		pr_debug("%s: CPUFreq table not found\n", __func__);
-		cool_dev = ERR_PTR(-ENODEV);
-		goto put_policy;
+	i = cpufreq_table_count_valid_entries(policy);
+	if (!i) {
+		pr_debug("%s: CPUFreq table not found or has no valid entries\n",
+			 __func__);
+		return ERR_PTR(-ENODEV);
 	}
 
-	cpufreq_dev = kzalloc(sizeof(*cpufreq_dev), GFP_KERNEL);
-	if (!cpufreq_dev) {
-		cool_dev = ERR_PTR(-ENOMEM);
-		goto put_policy;
-	}
+	cpufreq_cdev = kzalloc(sizeof(*cpufreq_cdev), GFP_KERNEL);
+	if (!cpufreq_cdev)
+		return ERR_PTR(-ENOMEM);
 
-	num_cpus = cpumask_weight(clip_cpus);
-	cpufreq_dev->time_in_idle = kcalloc(num_cpus,
-					    sizeof(*cpufreq_dev->time_in_idle),
-					    GFP_KERNEL);
-	if (!cpufreq_dev->time_in_idle) {
-		cool_dev = ERR_PTR(-ENOMEM);
+	cpufreq_cdev->policy = policy;
+	num_cpus = cpumask_weight(policy->related_cpus);
+	cpufreq_cdev->idle_time = kcalloc(num_cpus,
+					 sizeof(*cpufreq_cdev->idle_time),
+					 GFP_KERNEL);
+	if (!cpufreq_cdev->idle_time) {
+		cdev = ERR_PTR(-ENOMEM);
 		goto free_cdev;
 	}
 
-	cpufreq_dev->time_in_idle_timestamp =
-		kcalloc(num_cpus, sizeof(*cpufreq_dev->time_in_idle_timestamp),
-			GFP_KERNEL);
-	if (!cpufreq_dev->time_in_idle_timestamp) {
-		cool_dev = ERR_PTR(-ENOMEM);
-		goto free_time_in_idle;
-	}
-
-	/* Find max levels */
-	cpufreq_for_each_valid_entry(pos, table)
-		cpufreq_dev->max_level++;
-
-	cpufreq_dev->freq_table = kmalloc(sizeof(*cpufreq_dev->freq_table) *
-					  cpufreq_dev->max_level, GFP_KERNEL);
-	if (!cpufreq_dev->freq_table) {
-		cool_dev = ERR_PTR(-ENOMEM);
-		goto free_time_in_idle_timestamp;
-	}
-
 	/* max_level is an index, not a counter */
-	cpufreq_dev->max_level--;
-
-	cpumask_copy(&cpufreq_dev->allowed_cpus, clip_cpus);
-
-	if (capacitance) {
-		cpufreq_dev->plat_get_static_power = plat_static_func;
-
-		ret = build_dyn_power_table(cpufreq_dev, capacitance);
-		if (ret) {
-			cool_dev = ERR_PTR(ret);
-			goto free_table;
-		}
-
-		cooling_ops = &cpufreq_power_cooling_ops;
-	} else {
-		cooling_ops = &cpufreq_cooling_ops;
+	cpufreq_cdev->max_level = i - 1;
+
+	cpufreq_cdev->freq_table = kmalloc_array(i,
+					sizeof(*cpufreq_cdev->freq_table),
+					GFP_KERNEL);
+	if (!cpufreq_cdev->freq_table) {
+		cdev = ERR_PTR(-ENOMEM);
+		goto free_idle_time;
 	}
 
 	ret = ida_simple_get(&cpufreq_ida, 0, 0, GFP_KERNEL);
 	if (ret < 0) {
-		cool_dev = ERR_PTR(ret);
-		goto free_power_table;
+		cdev = ERR_PTR(ret);
+		goto free_table;
 	}
-	cpufreq_dev->id = ret;
+	cpufreq_cdev->id = ret;
+
+	snprintf(dev_name, sizeof(dev_name), "thermal-cpufreq-%d",
+		 cpufreq_cdev->id);
 
 	/* Fill freq-table in descending order of frequencies */
-	for (i = 0, freq = -1; i <= cpufreq_dev->max_level; i++) {
-		freq = find_next_max(table, freq);
-		cpufreq_dev->freq_table[i] = freq;
+	for (i = 0, freq = -1; i <= cpufreq_cdev->max_level; i++) {
+		freq = find_next_max(policy->freq_table, freq);
+		cpufreq_cdev->freq_table[i].frequency = freq;
 
 		/* Warn for duplicate entries */
 		if (!freq)
@@ -868,51 +754,54 @@ __cpufreq_cooling_register(struct device_node *np,
 			pr_debug("%s: freq:%u KHz\n", __func__, freq);
 	}
 
-	snprintf(dev_name, sizeof(dev_name), "thermal-cpufreq-%d",
-		 cpufreq_dev->id);
+	if (capacitance) {
+		cpufreq_cdev->plat_get_static_power = plat_static_func;
+
+		ret = update_freq_table(cpufreq_cdev, capacitance);
+		if (ret) {
+			cdev = ERR_PTR(ret);
+			goto remove_ida;
+		}
+
+		cooling_ops = &cpufreq_power_cooling_ops;
+	} else {
+		cooling_ops = &cpufreq_cooling_ops;
+	}
 
-	cool_dev = thermal_of_cooling_device_register(np, dev_name, cpufreq_dev,
-						      cooling_ops);
-	if (IS_ERR(cool_dev))
+	cdev = thermal_of_cooling_device_register(np, dev_name, cpufreq_cdev,
+						  cooling_ops);
+	if (IS_ERR(cdev))
 		goto remove_ida;
 
-	cpufreq_dev->clipped_freq = cpufreq_dev->freq_table[0];
-	cpufreq_dev->cool_dev = cool_dev;
+	cpufreq_cdev->clipped_freq = cpufreq_cdev->freq_table[0].frequency;
+	cpufreq_cdev->cdev = cdev;
 
 	mutex_lock(&cooling_list_lock);
 	/* Register the notifier for first cpufreq cooling device */
-	first = list_empty(&cpufreq_dev_list);
-	list_add(&cpufreq_dev->node, &cpufreq_dev_list);
+	first = list_empty(&cpufreq_cdev_list);
+	list_add(&cpufreq_cdev->node, &cpufreq_cdev_list);
 	mutex_unlock(&cooling_list_lock);
 
 	if (first)
 		cpufreq_register_notifier(&thermal_cpufreq_notifier_block,
 					  CPUFREQ_POLICY_NOTIFIER);
 
-	goto put_policy;
+	return cdev;
 
 remove_ida:
-	ida_simple_remove(&cpufreq_ida, cpufreq_dev->id);
-free_power_table:
-	kfree(cpufreq_dev->dyn_power_table);
+	ida_simple_remove(&cpufreq_ida, cpufreq_cdev->id);
 free_table:
-	kfree(cpufreq_dev->freq_table);
-free_time_in_idle_timestamp:
-	kfree(cpufreq_dev->time_in_idle_timestamp);
-free_time_in_idle:
-	kfree(cpufreq_dev->time_in_idle);
+	kfree(cpufreq_cdev->freq_table);
+free_idle_time:
+	kfree(cpufreq_cdev->idle_time);
 free_cdev:
-	kfree(cpufreq_dev);
-put_policy:
-	cpufreq_cpu_put(policy);
-free_cpumask:
-	free_cpumask_var(temp_mask);
-	return cool_dev;
+	kfree(cpufreq_cdev);
+	return cdev;
 }
 
 /**
  * cpufreq_cooling_register - function to create cpufreq cooling device.
- * @clip_cpus: cpumask of cpus where the frequency constraints will happen.
+ * @policy: cpufreq policy
  *
  * This interface function registers the cpufreq cooling device with the name
  * "thermal-cpufreq-%x". This api can support multiple instances of cpufreq
@@ -922,16 +811,16 @@ free_cpumask:
  * on failure, it returns a corresponding ERR_PTR().
  */
 struct thermal_cooling_device *
-cpufreq_cooling_register(const struct cpumask *clip_cpus)
+cpufreq_cooling_register(struct cpufreq_policy *policy)
 {
-	return __cpufreq_cooling_register(NULL, clip_cpus, 0, NULL);
+	return __cpufreq_cooling_register(NULL, policy, 0, NULL);
 }
 EXPORT_SYMBOL_GPL(cpufreq_cooling_register);
 
 /**
  * of_cpufreq_cooling_register - function to create cpufreq cooling device.
  * @np: a valid struct device_node to the cooling device device tree node
- * @clip_cpus: cpumask of cpus where the frequency constraints will happen.
+ * @policy: cpufreq policy
  *
  * This interface function registers the cpufreq cooling device with the name
  * "thermal-cpufreq-%x". This api can support multiple instances of cpufreq
@@ -943,18 +832,18 @@ EXPORT_SYMBOL_GPL(cpufreq_cooling_register);
  */
 struct thermal_cooling_device *
 of_cpufreq_cooling_register(struct device_node *np,
-			    const struct cpumask *clip_cpus)
+			    struct cpufreq_policy *policy)
 {
 	if (!np)
 		return ERR_PTR(-EINVAL);
 
-	return __cpufreq_cooling_register(np, clip_cpus, 0, NULL);
+	return __cpufreq_cooling_register(np, policy, 0, NULL);
 }
 EXPORT_SYMBOL_GPL(of_cpufreq_cooling_register);
 
 /**
  * cpufreq_power_cooling_register() - create cpufreq cooling device with power extensions
- * @clip_cpus:	cpumask of cpus where the frequency constraints will happen
+ * @policy:		cpufreq policy
  * @capacitance:	dynamic power coefficient for these cpus
  * @plat_static_func:	function to calculate the static power consumed by these
  *			cpus (optional)
@@ -974,10 +863,10 @@ EXPORT_SYMBOL_GPL(of_cpufreq_cooling_register);
  * on failure, it returns a corresponding ERR_PTR().
  */
 struct thermal_cooling_device *
-cpufreq_power_cooling_register(const struct cpumask *clip_cpus, u32 capacitance,
+cpufreq_power_cooling_register(struct cpufreq_policy *policy, u32 capacitance,
 			       get_static_t plat_static_func)
 {
-	return __cpufreq_cooling_register(NULL, clip_cpus, capacitance,
+	return __cpufreq_cooling_register(NULL, policy, capacitance,
 				plat_static_func);
 }
 EXPORT_SYMBOL(cpufreq_power_cooling_register);
@@ -985,7 +874,7 @@ EXPORT_SYMBOL(cpufreq_power_cooling_register);
 /**
  * of_cpufreq_power_cooling_register() - create cpufreq cooling device with power extensions
  * @np:	a valid struct device_node to the cooling device device tree node
- * @clip_cpus:	cpumask of cpus where the frequency constraints will happen
+ * @policy: cpufreq policy
  * @capacitance:	dynamic power coefficient for these cpus
  * @plat_static_func:	function to calculate the static power consumed by these
  *			cpus (optional)
@@ -1007,14 +896,14 @@ EXPORT_SYMBOL(cpufreq_power_cooling_register);
  */
 struct thermal_cooling_device *
 of_cpufreq_power_cooling_register(struct device_node *np,
-				  const struct cpumask *clip_cpus,
+				  struct cpufreq_policy *policy,
 				  u32 capacitance,
 				  get_static_t plat_static_func)
 {
 	if (!np)
 		return ERR_PTR(-EINVAL);
 
-	return __cpufreq_cooling_register(np, clip_cpus, capacitance,
+	return __cpufreq_cooling_register(np, policy, capacitance,
 				plat_static_func);
 }
 EXPORT_SYMBOL(of_cpufreq_power_cooling_register);
@@ -1027,30 +916,28 @@ EXPORT_SYMBOL(of_cpufreq_power_cooling_register);
  */
 void cpufreq_cooling_unregister(struct thermal_cooling_device *cdev)
 {
-	struct cpufreq_cooling_device *cpufreq_dev;
+	struct cpufreq_cooling_device *cpufreq_cdev;
 	bool last;
 
 	if (!cdev)
 		return;
 
-	cpufreq_dev = cdev->devdata;
+	cpufreq_cdev = cdev->devdata;
 
 	mutex_lock(&cooling_list_lock);
-	list_del(&cpufreq_dev->node);
+	list_del(&cpufreq_cdev->node);
 	/* Unregister the notifier for the last cpufreq cooling device */
-	last = list_empty(&cpufreq_dev_list);
+	last = list_empty(&cpufreq_cdev_list);
 	mutex_unlock(&cooling_list_lock);
 
 	if (last)
 		cpufreq_unregister_notifier(&thermal_cpufreq_notifier_block,
 					    CPUFREQ_POLICY_NOTIFIER);
 
-	thermal_cooling_device_unregister(cpufreq_dev->cool_dev);
-	ida_simple_remove(&cpufreq_ida, cpufreq_dev->id);
-	kfree(cpufreq_dev->dyn_power_table);
-	kfree(cpufreq_dev->time_in_idle_timestamp);
-	kfree(cpufreq_dev->time_in_idle);
-	kfree(cpufreq_dev->freq_table);
-	kfree(cpufreq_dev);
+	thermal_cooling_device_unregister(cpufreq_cdev->cdev);
+	ida_simple_remove(&cpufreq_ida, cpufreq_cdev->id);
+	kfree(cpufreq_cdev->idle_time);
+	kfree(cpufreq_cdev->freq_table);
+	kfree(cpufreq_cdev);
 }
 EXPORT_SYMBOL_GPL(cpufreq_cooling_unregister);
diff --git a/drivers/thermal/fair_share.c b/drivers/thermal/fair_share.c
index 68bd1b569118..d3469fbc5207 100644
--- a/drivers/thermal/fair_share.c
+++ b/drivers/thermal/fair_share.c
@@ -71,6 +71,7 @@ static long get_target_state(struct thermal_zone_device *tz,
 /**
  * fair_share_throttle - throttles devices associated with the given zone
  * @tz - thermal_zone_device
+ * @trip - trip point index
  *
  * Throttling Logic: This uses three parameters to calculate the new
  * throttle state of the cooling devices associated with the given zone.
diff --git a/drivers/thermal/hisi_thermal.c b/drivers/thermal/hisi_thermal.c
index f6429666a1cf..9c3ce341eb97 100644
--- a/drivers/thermal/hisi_thermal.c
+++ b/drivers/thermal/hisi_thermal.c
@@ -397,8 +397,11 @@ static int hisi_thermal_suspend(struct device *dev)
 static int hisi_thermal_resume(struct device *dev)
 {
 	struct hisi_thermal_data *data = dev_get_drvdata(dev);
+	int ret;
 
-	clk_prepare_enable(data->clk);
+	ret = clk_prepare_enable(data->clk);
+	if (ret)
+		return ret;
 
 	data->irq_enabled = true;
 	hisi_thermal_enable_bind_irq_sensor(data);
diff --git a/drivers/thermal/imx_thermal.c b/drivers/thermal/imx_thermal.c
index fb648a45754e..4798b4b1fd77 100644
--- a/drivers/thermal/imx_thermal.c
+++ b/drivers/thermal/imx_thermal.c
@@ -8,6 +8,7 @@
  */
 
 #include <linux/clk.h>
+#include <linux/cpufreq.h>
 #include <linux/cpu_cooling.h>
 #include <linux/delay.h>
 #include <linux/device.h>
@@ -88,6 +89,7 @@ static struct thermal_soc_data thermal_imx6sx_data = {
 };
 
 struct imx_thermal_data {
+	struct cpufreq_policy *policy;
 	struct thermal_zone_device *tz;
 	struct thermal_cooling_device *cdev;
 	enum thermal_device_mode mode;
@@ -525,13 +527,18 @@ static int imx_thermal_probe(struct platform_device *pdev)
 	regmap_write(map, MISC0 + REG_SET, MISC0_REFTOP_SELBIASOFF);
 	regmap_write(map, TEMPSENSE0 + REG_SET, TEMPSENSE0_POWER_DOWN);
 
-	data->cdev = cpufreq_cooling_register(cpu_present_mask);
+	data->policy = cpufreq_cpu_get(0);
+	if (!data->policy) {
+		pr_debug("%s: CPUFreq policy not found\n", __func__);
+		return -EPROBE_DEFER;
+	}
+
+	data->cdev = cpufreq_cooling_register(data->policy);
 	if (IS_ERR(data->cdev)) {
 		ret = PTR_ERR(data->cdev);
-		if (ret != -EPROBE_DEFER)
-			dev_err(&pdev->dev,
-				"failed to register cpufreq cooling device: %d\n",
-				ret);
+		dev_err(&pdev->dev,
+			"failed to register cpufreq cooling device: %d\n", ret);
+		cpufreq_cpu_put(data->policy);
 		return ret;
 	}
 
@@ -542,6 +549,7 @@ static int imx_thermal_probe(struct platform_device *pdev)
 			dev_err(&pdev->dev,
 				"failed to get thermal clk: %d\n", ret);
 		cpufreq_cooling_unregister(data->cdev);
+		cpufreq_cpu_put(data->policy);
 		return ret;
 	}
 
@@ -556,6 +564,7 @@ static int imx_thermal_probe(struct platform_device *pdev)
 	if (ret) {
 		dev_err(&pdev->dev, "failed to enable thermal clk: %d\n", ret);
 		cpufreq_cooling_unregister(data->cdev);
+		cpufreq_cpu_put(data->policy);
 		return ret;
 	}
 
@@ -571,6 +580,7 @@ static int imx_thermal_probe(struct platform_device *pdev)
 			"failed to register thermal zone device %d\n", ret);
 		clk_disable_unprepare(data->thermal_clk);
 		cpufreq_cooling_unregister(data->cdev);
+		cpufreq_cpu_put(data->policy);
 		return ret;
 	}
 
@@ -599,6 +609,7 @@ static int imx_thermal_probe(struct platform_device *pdev)
 		clk_disable_unprepare(data->thermal_clk);
 		thermal_zone_device_unregister(data->tz);
 		cpufreq_cooling_unregister(data->cdev);
+		cpufreq_cpu_put(data->policy);
 		return ret;
 	}
 
@@ -620,6 +631,7 @@ static int imx_thermal_remove(struct platform_device *pdev)
 
 	thermal_zone_device_unregister(data->tz);
 	cpufreq_cooling_unregister(data->cdev);
+	cpufreq_cpu_put(data->policy);
 
 	return 0;
 }
@@ -648,8 +660,11 @@ static int imx_thermal_resume(struct device *dev)
 {
 	struct imx_thermal_data *data = dev_get_drvdata(dev);
 	struct regmap *map = data->tempmon;
+	int ret;
 
-	clk_prepare_enable(data->thermal_clk);
+	ret = clk_prepare_enable(data->thermal_clk);
+	if (ret)
+		return ret;
 	/* Enabled thermal sensor after resume */
 	regmap_write(map, TEMPSENSE0 + REG_CLR, TEMPSENSE0_POWER_DOWN);
 	regmap_write(map, TEMPSENSE0 + REG_SET, TEMPSENSE0_MEASURE_TEMP);
diff --git a/drivers/thermal/int340x_thermal/acpi_thermal_rel.c b/drivers/thermal/int340x_thermal/acpi_thermal_rel.c
index 2c2ec7666eb1..51ceb80212a7 100644
--- a/drivers/thermal/int340x_thermal/acpi_thermal_rel.c
+++ b/drivers/thermal/int340x_thermal/acpi_thermal_rel.c
@@ -62,8 +62,8 @@ static int acpi_thermal_rel_release(struct inode *inode, struct file *file)
  * acpi_parse_trt - Thermal Relationship Table _TRT for passive cooling
  *
  * @handle: ACPI handle of the device contains _TRT
- * @art_count: the number of valid entries resulted from parsing _TRT
- * @artp: pointer to pointer of array of art entries in parsing result
+ * @trt_count: the number of valid entries resulted from parsing _TRT
+ * @trtp: pointer to pointer of array of _TRT entries in parsing result
  * @create_dev: whether to create platform devices for target and source
  *
  */
@@ -208,7 +208,7 @@ int acpi_parse_art(acpi_handle handle, int *art_count, struct art **artp,
 		if (art->target) {
 			result = acpi_bus_get_device(art->target, &adev);
 			if (result)
-				pr_warn("Failed to get source ACPI device\n");
+				pr_warn("Failed to get target ACPI device\n");
 		}
 	}
 
diff --git a/drivers/thermal/int340x_thermal/int3403_thermal.c b/drivers/thermal/int340x_thermal/int3403_thermal.c
index c4890c9437eb..8a7f24dd9315 100644
--- a/drivers/thermal/int340x_thermal/int3403_thermal.c
+++ b/drivers/thermal/int340x_thermal/int3403_thermal.c
@@ -238,8 +238,16 @@ static int int3403_add(struct platform_device *pdev)
 	status = acpi_evaluate_integer(priv->adev->handle, "PTYP",
 				       NULL, &priv->type);
 	if (ACPI_FAILURE(status)) {
-		result = -EINVAL;
-		goto err;
+		unsigned long long tmp;
+
+		status = acpi_evaluate_integer(priv->adev->handle, "_TMP",
+					       NULL, &tmp);
+		if (ACPI_FAILURE(status)) {
+			result = -EINVAL;
+			goto err;
+		} else {
+			priv->type = INT3403_TYPE_SENSOR;
+		}
 	}
 
 	platform_set_drvdata(pdev, priv);
diff --git a/drivers/thermal/step_wise.c b/drivers/thermal/step_wise.c
index bcef2e7c4ec9..be95826631b7 100644
--- a/drivers/thermal/step_wise.c
+++ b/drivers/thermal/step_wise.c
@@ -186,8 +186,7 @@ static void thermal_zone_trip_update(struct thermal_zone_device *tz, int trip)
 /**
  * step_wise_throttle - throttles devices associated with the given zone
  * @tz - thermal_zone_device
- * @trip - the trip point
- * @trip_type - type of the trip point
+ * @trip - trip point index
  *
  * Throttling Logic: This uses the trend of the thermal zone to throttle.
  * If the thermal zone is 'heating up' this throttles all the cooling
diff --git a/drivers/thermal/ti-soc-thermal/ti-thermal-common.c b/drivers/thermal/ti-soc-thermal/ti-thermal-common.c
index 02790f69e26c..c211a8e4a210 100644
--- a/drivers/thermal/ti-soc-thermal/ti-thermal-common.c
+++ b/drivers/thermal/ti-soc-thermal/ti-thermal-common.c
@@ -28,6 +28,7 @@
 #include <linux/kernel.h>
 #include <linux/workqueue.h>
 #include <linux/thermal.h>
+#include <linux/cpufreq.h>
 #include <linux/cpumask.h>
 #include <linux/cpu_cooling.h>
 #include <linux/of.h>
@@ -37,6 +38,7 @@
 
 /* common data structures */
 struct ti_thermal_data {
+	struct cpufreq_policy *policy;
 	struct thermal_zone_device *ti_thermal;
 	struct thermal_zone_device *pcb_tz;
 	struct thermal_cooling_device *cool_dev;
@@ -247,15 +249,19 @@ int ti_thermal_register_cpu_cooling(struct ti_bandgap *bgp, int id)
 	if (!data)
 		return -EINVAL;
 
+	data->policy = cpufreq_cpu_get(0);
+	if (!data->policy) {
+		pr_debug("%s: CPUFreq policy not found\n", __func__);
+		return -EPROBE_DEFER;
+	}
+
 	/* Register cooling device */
-	data->cool_dev = cpufreq_cooling_register(cpu_present_mask);
+	data->cool_dev = cpufreq_cooling_register(data->policy);
 	if (IS_ERR(data->cool_dev)) {
 		int ret = PTR_ERR(data->cool_dev);
-
-		if (ret != -EPROBE_DEFER)
-			dev_err(bgp->dev,
-				"Failed to register cpu cooling device %d\n",
-				ret);
+		dev_err(bgp->dev, "Failed to register cpu cooling device %d\n",
+			ret);
+		cpufreq_cpu_put(data->policy);
 
 		return ret;
 	}
@@ -270,8 +276,10 @@ int ti_thermal_unregister_cpu_cooling(struct ti_bandgap *bgp, int id)
 
 	data = ti_bandgap_get_sensor_data(bgp, id);
 
-	if (data)
+	if (data) {
 		cpufreq_cooling_unregister(data->cool_dev);
+		cpufreq_cpu_put(data->policy);
+	}
 
 	return 0;
 }
diff --git a/drivers/thermal/user_space.c b/drivers/thermal/user_space.c
index c908150c268d..8e92a06ef48a 100644
--- a/drivers/thermal/user_space.c
+++ b/drivers/thermal/user_space.c
@@ -24,12 +24,13 @@
 
 #include <linux/thermal.h>
 #include <linux/slab.h>
+
 #include "thermal_core.h"
 
 /**
  * notify_user_space - Notifies user space about thermal events
  * @tz - thermal_zone_device
- * @trip - Trip point index
+ * @trip - trip point index
  *
  * This function notifies the user space through UEvents.
  */
diff --git a/drivers/thunderbolt/eeprom.c b/drivers/thunderbolt/eeprom.c
index 308b6e17c88a..fe2f00ceafc5 100644
--- a/drivers/thunderbolt/eeprom.c
+++ b/drivers/thunderbolt/eeprom.c
@@ -333,6 +333,15 @@ static int tb_drom_parse_entry_port(struct tb_switch *sw,
 	int res;
 	enum tb_port_type type;
 
+	/*
+	 * Some DROMs list more ports than the controller actually has
+	 * so we skip those but allow the parser to continue.
+	 */
+	if (header->index > sw->config.max_port_number) {
+		dev_info_once(&sw->dev, "ignoring unnecessary extra entries in DROM\n");
+		return 0;
+	}
+
 	port = &sw->ports[header->index];
 	port->disabled = header->port_disabled;
 	if (port->disabled)
diff --git a/drivers/thunderbolt/icm.c b/drivers/thunderbolt/icm.c
index 8ee340290219..bdaac1ff00a5 100644
--- a/drivers/thunderbolt/icm.c
+++ b/drivers/thunderbolt/icm.c
@@ -904,7 +904,14 @@ static int icm_driver_ready(struct tb *tb)
 
 static int icm_suspend(struct tb *tb)
 {
-	return nhi_mailbox_cmd(tb->nhi, NHI_MAILBOX_SAVE_DEVS, 0);
+	int ret;
+
+	ret = nhi_mailbox_cmd(tb->nhi, NHI_MAILBOX_SAVE_DEVS, 0);
+	if (ret)
+		tb_info(tb, "Ignoring mailbox command error (%d) in %s\n",
+			ret, __func__);
+
+	return 0;
 }
 
 /*
diff --git a/drivers/thunderbolt/switch.c b/drivers/thunderbolt/switch.c
index ab3e8f410444..e9391bbd4036 100644
--- a/drivers/thunderbolt/switch.c
+++ b/drivers/thunderbolt/switch.c
@@ -30,7 +30,7 @@ static DEFINE_IDA(nvm_ida);
 
 struct nvm_auth_status {
 	struct list_head list;
-	uuid_be uuid;
+	uuid_t uuid;
 	u32 status;
 };
 
@@ -47,7 +47,7 @@ static struct nvm_auth_status *__nvm_get_auth_status(const struct tb_switch *sw)
 	struct nvm_auth_status *st;
 
 	list_for_each_entry(st, &nvm_auth_status_cache, list) {
-		if (!uuid_be_cmp(st->uuid, *sw->uuid))
+		if (uuid_equal(&st->uuid, sw->uuid))
 			return st;
 	}
 
@@ -281,9 +281,11 @@ static struct nvmem_device *register_nvmem(struct tb_switch *sw, int id,
 	if (active) {
 		config.name = "nvm_active";
 		config.reg_read = tb_switch_nvm_read;
+		config.read_only = true;
 	} else {
 		config.name = "nvm_non_active";
 		config.reg_write = tb_switch_nvm_write;
+		config.root_only = true;
 	}
 
 	config.id = id;
@@ -292,7 +294,6 @@ static struct nvmem_device *register_nvmem(struct tb_switch *sw, int id,
 	config.size = size;
 	config.dev = &sw->dev;
 	config.owner = THIS_MODULE;
-	config.root_only = true;
 	config.priv = sw;
 
 	return nvmem_register(&config);
@@ -1460,7 +1461,7 @@ struct tb_sw_lookup {
 	struct tb *tb;
 	u8 link;
 	u8 depth;
-	const uuid_be *uuid;
+	const uuid_t *uuid;
 };
 
 static int tb_switch_match(struct device *dev, void *data)
@@ -1517,7 +1518,7 @@ struct tb_switch *tb_switch_find_by_link_depth(struct tb *tb, u8 link, u8 depth)
  * Returned switch has reference count increased so the caller needs to
  * call tb_switch_put() when done with the switch.
  */
-struct tb_switch *tb_switch_find_by_uuid(struct tb *tb, const uuid_be *uuid)
+struct tb_switch *tb_switch_find_by_uuid(struct tb *tb, const uuid_t *uuid)
 {
 	struct tb_sw_lookup lookup;
 	struct device *dev;
diff --git a/drivers/thunderbolt/tb.h b/drivers/thunderbolt/tb.h
index 3d9f64676e58..e0deee4f1eb0 100644
--- a/drivers/thunderbolt/tb.h
+++ b/drivers/thunderbolt/tb.h
@@ -101,7 +101,7 @@ struct tb_switch {
 	struct tb_dma_port *dma_port;
 	struct tb *tb;
 	u64 uid;
-	uuid_be *uuid;
+	uuid_t *uuid;
 	u16 vendor;
 	u16 device;
 	const char *vendor_name;
@@ -407,7 +407,7 @@ void tb_sw_set_unplugged(struct tb_switch *sw);
 struct tb_switch *get_switch_at_route(struct tb_switch *sw, u64 route);
 struct tb_switch *tb_switch_find_by_link_depth(struct tb *tb, u8 link,
 					       u8 depth);
-struct tb_switch *tb_switch_find_by_uuid(struct tb *tb, const uuid_be *uuid);
+struct tb_switch *tb_switch_find_by_uuid(struct tb *tb, const uuid_t *uuid);
 
 static inline unsigned int tb_switch_phy_port_from_link(unsigned int link)
 {
diff --git a/drivers/thunderbolt/tb_msgs.h b/drivers/thunderbolt/tb_msgs.h
index 85b6d33c0919..de6441e4a060 100644
--- a/drivers/thunderbolt/tb_msgs.h
+++ b/drivers/thunderbolt/tb_msgs.h
@@ -179,7 +179,7 @@ struct icm_fr_pkg_get_topology_response {
 
 struct icm_fr_event_device_connected {
 	struct icm_pkg_header hdr;
-	uuid_be ep_uuid;
+	uuid_t ep_uuid;
 	u8 connection_key;
 	u8 connection_id;
 	u16 link_info;
@@ -193,7 +193,7 @@ struct icm_fr_event_device_connected {
 
 struct icm_fr_pkg_approve_device {
 	struct icm_pkg_header hdr;
-	uuid_be ep_uuid;
+	uuid_t ep_uuid;
 	u8 connection_key;
 	u8 connection_id;
 	u16 reserved;
@@ -207,7 +207,7 @@ struct icm_fr_event_device_disconnected {
 
 struct icm_fr_pkg_add_device_key {
 	struct icm_pkg_header hdr;
-	uuid_be ep_uuid;
+	uuid_t ep_uuid;
 	u8 connection_key;
 	u8 connection_id;
 	u16 reserved;
@@ -216,7 +216,7 @@ struct icm_fr_pkg_add_device_key {
 
 struct icm_fr_pkg_add_device_key_response {
 	struct icm_pkg_header hdr;
-	uuid_be ep_uuid;
+	uuid_t ep_uuid;
 	u8 connection_key;
 	u8 connection_id;
 	u16 reserved;
@@ -224,7 +224,7 @@ struct icm_fr_pkg_add_device_key_response {
 
 struct icm_fr_pkg_challenge_device {
 	struct icm_pkg_header hdr;
-	uuid_be ep_uuid;
+	uuid_t ep_uuid;
 	u8 connection_key;
 	u8 connection_id;
 	u16 reserved;
@@ -233,7 +233,7 @@ struct icm_fr_pkg_challenge_device {
 
 struct icm_fr_pkg_challenge_device_response {
 	struct icm_pkg_header hdr;
-	uuid_be ep_uuid;
+	uuid_t ep_uuid;
 	u8 connection_key;
 	u8 connection_id;
 	u16 reserved;
diff --git a/drivers/tty/pty.c b/drivers/tty/pty.c
index d1399aac05a1..1fc80ea87c13 100644
--- a/drivers/tty/pty.c
+++ b/drivers/tty/pty.c
@@ -448,48 +448,6 @@ err:
 	return retval;
 }
 
-/**
- *	pty_open_peer - open the peer of a pty
- *	@tty: the peer of the pty being opened
- *
- *	Open the cached dentry in tty->link, providing a safe way for userspace
- *	to get the slave end of a pty (where they have the master fd and cannot
- *	access or trust the mount namespace /dev/pts was mounted inside).
- */
-static struct file *pty_open_peer(struct tty_struct *tty, int flags)
-{
-	if (tty->driver->subtype != PTY_TYPE_MASTER)
-		return ERR_PTR(-EIO);
-	return dentry_open(tty->link->driver_data, flags, current_cred());
-}
-
-static int pty_get_peer(struct tty_struct *tty, int flags)
-{
-	int fd = -1;
-	struct file *filp = NULL;
-	int retval = -EINVAL;
-
-	fd = get_unused_fd_flags(0);
-	if (fd < 0) {
-		retval = fd;
-		goto err;
-	}
-
-	filp = pty_open_peer(tty, flags);
-	if (IS_ERR(filp)) {
-		retval = PTR_ERR(filp);
-		goto err_put;
-	}
-
-	fd_install(fd, filp);
-	return fd;
-
-err_put:
-	put_unused_fd(fd);
-err:
-	return retval;
-}
-
 static void pty_cleanup(struct tty_struct *tty)
 {
 	tty_port_put(tty->port);
@@ -646,9 +604,50 @@ static inline void legacy_pty_init(void) { }
 
 /* Unix98 devices */
 #ifdef CONFIG_UNIX98_PTYS
-
 static struct cdev ptmx_cdev;
 
+/**
+ *	pty_open_peer - open the peer of a pty
+ *	@tty: the peer of the pty being opened
+ *
+ *	Open the cached dentry in tty->link, providing a safe way for userspace
+ *	to get the slave end of a pty (where they have the master fd and cannot
+ *	access or trust the mount namespace /dev/pts was mounted inside).
+ */
+static struct file *pty_open_peer(struct tty_struct *tty, int flags)
+{
+	if (tty->driver->subtype != PTY_TYPE_MASTER)
+		return ERR_PTR(-EIO);
+	return dentry_open(tty->link->driver_data, flags, current_cred());
+}
+
+static int pty_get_peer(struct tty_struct *tty, int flags)
+{
+	int fd = -1;
+	struct file *filp = NULL;
+	int retval = -EINVAL;
+
+	fd = get_unused_fd_flags(0);
+	if (fd < 0) {
+		retval = fd;
+		goto err;
+	}
+
+	filp = pty_open_peer(tty, flags);
+	if (IS_ERR(filp)) {
+		retval = PTR_ERR(filp);
+		goto err_put;
+	}
+
+	fd_install(fd, filp);
+	return fd;
+
+err_put:
+	put_unused_fd(fd);
+err:
+	return retval;
+}
+
 static int pty_unix98_ioctl(struct tty_struct *tty,
 			    unsigned int cmd, unsigned long arg)
 {
@@ -794,6 +793,7 @@ static int ptmx_open(struct inode *inode, struct file *filp)
 	struct tty_struct *tty;
 	struct path *pts_path;
 	struct dentry *dentry;
+	struct vfsmount *mnt;
 	int retval;
 	int index;
 
@@ -806,7 +806,7 @@ static int ptmx_open(struct inode *inode, struct file *filp)
 	if (retval)
 		return retval;
 
-	fsi = devpts_acquire(filp);
+	fsi = devpts_acquire(filp, &mnt);
 	if (IS_ERR(fsi)) {
 		retval = PTR_ERR(fsi);
 		goto out_free_file;
@@ -850,7 +850,7 @@ static int ptmx_open(struct inode *inode, struct file *filp)
 	pts_path = kmalloc(sizeof(struct path), GFP_KERNEL);
 	if (!pts_path)
 		goto err_release;
-	pts_path->mnt = filp->f_path.mnt;
+	pts_path->mnt = mnt;
 	pts_path->dentry = dentry;
 	path_get(pts_path);
 	tty->link->driver_data = pts_path;
@@ -867,6 +867,7 @@ err_path_put:
 	path_put(pts_path);
 	kfree(pts_path);
 err_release:
+	mntput(mnt);
 	tty_unlock(tty);
 	// This will also put-ref the fsi
 	tty_release(inode, filp);
@@ -875,6 +876,7 @@ out:
 	devpts_kill_index(fsi, index);
 out_put_fsi:
 	devpts_release(fsi);
+	mntput(mnt);
 out_free_file:
 	tty_free_file(filp);
 	return retval;
diff --git a/drivers/tty/serial/8250/8250_core.c b/drivers/tty/serial/8250/8250_core.c
index b5def356af63..1aab3010fbfa 100644
--- a/drivers/tty/serial/8250/8250_core.c
+++ b/drivers/tty/serial/8250/8250_core.c
@@ -1043,13 +1043,24 @@ int serial8250_register_8250_port(struct uart_8250_port *up)
 		if (up->dl_write)
 			uart->dl_write = up->dl_write;
 
-		if (serial8250_isa_config != NULL)
-			serial8250_isa_config(0, &uart->port,
-					&uart->capabilities);
+		if (uart->port.type != PORT_8250_CIR) {
+			if (serial8250_isa_config != NULL)
+				serial8250_isa_config(0, &uart->port,
+						&uart->capabilities);
+
+			ret = uart_add_one_port(&serial8250_reg,
+						&uart->port);
+			if (ret == 0)
+				ret = uart->port.line;
+		} else {
+			dev_info(uart->port.dev,
+				"skipping CIR port at 0x%lx / 0x%llx, IRQ %d\n",
+				uart->port.iobase,
+				(unsigned long long)uart->port.mapbase,
+				uart->port.irq);
 
-		ret = uart_add_one_port(&serial8250_reg, &uart->port);
-		if (ret == 0)
-			ret = uart->port.line;
+			ret = 0;
+		}
 	}
 	mutex_unlock(&serial_mutex);
 
diff --git a/drivers/tty/serial/8250/8250_exar.c b/drivers/tty/serial/8250/8250_exar.c
index b5c98e5bf524..c6360fbdf808 100644
--- a/drivers/tty/serial/8250/8250_exar.c
+++ b/drivers/tty/serial/8250/8250_exar.c
@@ -261,7 +261,7 @@ __xr17v35x_register_gpio(struct pci_dev *pcidev,
 }
 
 static const struct property_entry exar_gpio_properties[] = {
-	PROPERTY_ENTRY_U32("linux,first-pin", 0),
+	PROPERTY_ENTRY_U32("exar,first-pin", 0),
 	PROPERTY_ENTRY_U32("ngpios", 16),
 	{ }
 };
@@ -326,7 +326,7 @@ static int iot2040_rs485_config(struct uart_port *port,
 }
 
 static const struct property_entry iot2040_gpio_properties[] = {
-	PROPERTY_ENTRY_U32("linux,first-pin", 10),
+	PROPERTY_ENTRY_U32("exar,first-pin", 10),
 	PROPERTY_ENTRY_U32("ngpios", 1),
 	{ }
 };
diff --git a/drivers/tty/serial/amba-pl011.c b/drivers/tty/serial/amba-pl011.c
index 8a857bb34fbb..1888d168a41c 100644
--- a/drivers/tty/serial/amba-pl011.c
+++ b/drivers/tty/serial/amba-pl011.c
@@ -142,15 +142,7 @@ static struct vendor_data vendor_sbsa = {
 	.fixed_options		= true,
 };
 
-/*
- * Erratum 44 for QDF2432v1 and QDF2400v1 SoCs describes the BUSY bit as
- * occasionally getting stuck as 1. To avoid the potential for a hang, check
- * TXFE == 0 instead of BUSY == 1. This may not be suitable for all UART
- * implementations, so only do so if an affected platform is detected in
- * parse_spcr().
- */
-static bool qdf2400_e44_present = false;
-
+#ifdef CONFIG_ACPI_SPCR_TABLE
 static struct vendor_data vendor_qdt_qdf2400_e44 = {
 	.reg_offset		= pl011_std_offsets,
 	.fr_busy		= UART011_FR_TXFE,
@@ -165,6 +157,7 @@ static struct vendor_data vendor_qdt_qdf2400_e44 = {
 	.always_enabled		= true,
 	.fixed_options		= true,
 };
+#endif
 
 static u16 pl011_st_offsets[REG_ARRAY_SIZE] = {
 	[REG_DR] = UART01x_DR,
@@ -2375,12 +2368,14 @@ static int __init pl011_console_match(struct console *co, char *name, int idx,
 	resource_size_t addr;
 	int i;
 
-	if (strcmp(name, "qdf2400_e44") == 0) {
-		pr_info_once("UART: Working around QDF2400 SoC erratum 44");
-		qdf2400_e44_present = true;
-	} else if (strcmp(name, "pl011") != 0) {
+	/*
+	 * Systems affected by the Qualcomm Technologies QDF2400 E44 erratum
+	 * have a distinct console name, so make sure we check for that.
+	 * The actual implementation of the erratum occurs in the probe
+	 * function.
+	 */
+	if ((strcmp(name, "qdf2400_e44") != 0) && (strcmp(name, "pl011") != 0))
 		return -ENODEV;
-	}
 
 	if (uart_parse_earlycon(options, &iotype, &addr, &options))
 		return -ENODEV;
@@ -2734,11 +2729,17 @@ static int sbsa_uart_probe(struct platform_device *pdev)
 	}
 	uap->port.irq	= ret;
 
-	uap->reg_offset	= vendor_sbsa.reg_offset;
-	uap->vendor	= qdf2400_e44_present ?
-					&vendor_qdt_qdf2400_e44 : &vendor_sbsa;
+#ifdef CONFIG_ACPI_SPCR_TABLE
+	if (qdf2400_e44_present) {
+		dev_info(&pdev->dev, "working around QDF2400 SoC erratum 44\n");
+		uap->vendor = &vendor_qdt_qdf2400_e44;
+	} else
+#endif
+		uap->vendor = &vendor_sbsa;
+
+	uap->reg_offset	= uap->vendor->reg_offset;
 	uap->fifosize	= 32;
-	uap->port.iotype = vendor_sbsa.access_32b ? UPIO_MEM32 : UPIO_MEM;
+	uap->port.iotype = uap->vendor->access_32b ? UPIO_MEM32 : UPIO_MEM;
 	uap->port.ops	= &sbsa_uart_pops;
 	uap->fixed_baud = baudrate;
 
diff --git a/drivers/tty/serial/fsl_lpuart.c b/drivers/tty/serial/fsl_lpuart.c
index 343de8c384b0..898dcb091a27 100644
--- a/drivers/tty/serial/fsl_lpuart.c
+++ b/drivers/tty/serial/fsl_lpuart.c
@@ -619,6 +619,12 @@ static unsigned int lpuart32_tx_empty(struct uart_port *port)
 		TIOCSER_TEMT : 0;
 }
 
+static bool lpuart_is_32(struct lpuart_port *sport)
+{
+	return sport->port.iotype == UPIO_MEM32 ||
+	       sport->port.iotype ==  UPIO_MEM32BE;
+}
+
 static irqreturn_t lpuart_txint(int irq, void *dev_id)
 {
 	struct lpuart_port *sport = dev_id;
@@ -627,7 +633,7 @@ static irqreturn_t lpuart_txint(int irq, void *dev_id)
 
 	spin_lock_irqsave(&sport->port.lock, flags);
 	if (sport->port.x_char) {
-		if (sport->port.iotype & (UPIO_MEM32 | UPIO_MEM32BE))
+		if (lpuart_is_32(sport))
 			lpuart32_write(&sport->port, sport->port.x_char, UARTDATA);
 		else
 			writeb(sport->port.x_char, sport->port.membase + UARTDR);
@@ -635,14 +641,14 @@ static irqreturn_t lpuart_txint(int irq, void *dev_id)
 	}
 
 	if (uart_circ_empty(xmit) || uart_tx_stopped(&sport->port)) {
-		if (sport->port.iotype & (UPIO_MEM32 | UPIO_MEM32BE))
+		if (lpuart_is_32(sport))
 			lpuart32_stop_tx(&sport->port);
 		else
 			lpuart_stop_tx(&sport->port);
 		goto out;
 	}
 
-	if (sport->port.iotype & (UPIO_MEM32 | UPIO_MEM32BE))
+	if (lpuart_is_32(sport))
 		lpuart32_transmit_buffer(sport);
 	else
 		lpuart_transmit_buffer(sport);
@@ -1978,12 +1984,12 @@ static int __init lpuart_console_setup(struct console *co, char *options)
 	if (options)
 		uart_parse_options(options, &baud, &parity, &bits, &flow);
 	else
-		if (sport->port.iotype & (UPIO_MEM32 | UPIO_MEM32BE))
+		if (lpuart_is_32(sport))
 			lpuart32_console_get_options(sport, &baud, &parity, &bits);
 		else
 			lpuart_console_get_options(sport, &baud, &parity, &bits);
 
-	if (sport->port.iotype & (UPIO_MEM32 | UPIO_MEM32BE))
+	if (lpuart_is_32(sport))
 		lpuart32_setup_watermark(sport);
 	else
 		lpuart_setup_watermark(sport);
@@ -2118,7 +2124,7 @@ static int lpuart_probe(struct platform_device *pdev)
 	}
 	sport->port.irq = ret;
 	sport->port.iotype = sdata->iotype;
-	if (sport->port.iotype & (UPIO_MEM32 | UPIO_MEM32BE))
+	if (lpuart_is_32(sport))
 		sport->port.ops = &lpuart32_pops;
 	else
 		sport->port.ops = &lpuart_pops;
@@ -2145,7 +2151,7 @@ static int lpuart_probe(struct platform_device *pdev)
 
 	platform_set_drvdata(pdev, &sport->port);
 
-	if (sport->port.iotype & (UPIO_MEM32 | UPIO_MEM32BE))
+	if (lpuart_is_32(sport))
 		lpuart_reg.cons = LPUART32_CONSOLE;
 	else
 		lpuart_reg.cons = LPUART_CONSOLE;
@@ -2198,7 +2204,7 @@ static int lpuart_suspend(struct device *dev)
 	struct lpuart_port *sport = dev_get_drvdata(dev);
 	unsigned long temp;
 
-	if (sport->port.iotype & (UPIO_MEM32 | UPIO_MEM32BE)) {
+	if (lpuart_is_32(sport)) {
 		/* disable Rx/Tx and interrupts */
 		temp = lpuart32_read(&sport->port, UARTCTRL);
 		temp &= ~(UARTCTRL_TE | UARTCTRL_TIE | UARTCTRL_TCIE);
@@ -2249,7 +2255,7 @@ static int lpuart_resume(struct device *dev)
 	if (sport->port.suspended && !sport->port.irq_wake)
 		clk_prepare_enable(sport->clk);
 
-	if (sport->port.iotype & (UPIO_MEM32 | UPIO_MEM32BE)) {
+	if (lpuart_is_32(sport)) {
 		lpuart32_setup_watermark(sport);
 		temp = lpuart32_read(&sport->port, UARTCTRL);
 		temp |= (UARTCTRL_RIE | UARTCTRL_TIE | UARTCTRL_RE |
diff --git a/drivers/tty/serial/imx.c b/drivers/tty/serial/imx.c
index 9e3162bf3bd1..80934e7bd67f 100644
--- a/drivers/tty/serial/imx.c
+++ b/drivers/tty/serial/imx.c
@@ -186,11 +186,6 @@
 
 #define UART_NR 8
 
-/* RX DMA buffer periods */
-#define RX_DMA_PERIODS 4
-#define RX_BUF_SIZE	(PAGE_SIZE)
-
-
 /* i.MX21 type uart runs on all i.mx except i.MX1 and i.MX6q */
 enum imx_uart_type {
 	IMX1_UART,
@@ -226,7 +221,6 @@ struct imx_port {
 	struct dma_chan		*dma_chan_rx, *dma_chan_tx;
 	struct scatterlist	rx_sgl, tx_sgl[2];
 	void			*rx_buf;
-	unsigned int		rx_buf_size;
 	struct circ_buf		rx_ring;
 	unsigned int		rx_periods;
 	dma_cookie_t		rx_cookie;
@@ -464,7 +458,7 @@ static inline void imx_transmit_buffer(struct imx_port *sport)
 		}
 	}
 
-	while (!uart_circ_empty(xmit) &&
+	while (!uart_circ_empty(xmit) && !sport->dma_is_txing &&
 	       !(readl(sport->port.membase + uts_reg(sport)) & UTS_TXFULL)) {
 		/* send xmit->buf[xmit->tail]
 		 * out the port here */
@@ -967,6 +961,8 @@ static void imx_timeout(unsigned long data)
 	}
 }
 
+#define RX_BUF_SIZE	(PAGE_SIZE)
+
 /*
  * There are two kinds of RX DMA interrupts(such as in the MX6Q):
  *   [1] the RX DMA buffer is full.
@@ -1049,6 +1045,9 @@ static void dma_rx_callback(void *data)
 	}
 }
 
+/* RX DMA buffer periods */
+#define RX_DMA_PERIODS 4
+
 static int start_rx_dma(struct imx_port *sport)
 {
 	struct scatterlist *sgl = &sport->rx_sgl;
@@ -1059,8 +1058,9 @@ static int start_rx_dma(struct imx_port *sport)
 
 	sport->rx_ring.head = 0;
 	sport->rx_ring.tail = 0;
+	sport->rx_periods = RX_DMA_PERIODS;
 
-	sg_init_one(sgl, sport->rx_buf, sport->rx_buf_size);
+	sg_init_one(sgl, sport->rx_buf, RX_BUF_SIZE);
 	ret = dma_map_sg(dev, sgl, 1, DMA_FROM_DEVICE);
 	if (ret == 0) {
 		dev_err(dev, "DMA mapping error for RX.\n");
@@ -1171,7 +1171,7 @@ static int imx_uart_dma_init(struct imx_port *sport)
 		goto err;
 	}
 
-	sport->rx_buf = kzalloc(sport->rx_buf_size, GFP_KERNEL);
+	sport->rx_buf = kzalloc(PAGE_SIZE, GFP_KERNEL);
 	if (!sport->rx_buf) {
 		ret = -ENOMEM;
 		goto err;
@@ -2036,7 +2036,6 @@ static int serial_imx_probe_dt(struct imx_port *sport,
 {
 	struct device_node *np = pdev->dev.of_node;
 	int ret;
-	u32 dma_buf_size[2];
 
 	sport->devdata = of_device_get_match_data(&pdev->dev);
 	if (!sport->devdata)
@@ -2060,14 +2059,6 @@ static int serial_imx_probe_dt(struct imx_port *sport,
 	if (of_get_property(np, "rts-gpios", NULL))
 		sport->have_rtsgpio = 1;
 
-	if (!of_property_read_u32_array(np, "fsl,dma-size", dma_buf_size, 2)) {
-		sport->rx_buf_size = dma_buf_size[0] * dma_buf_size[1];
-		sport->rx_periods = dma_buf_size[1];
-	} else {
-		sport->rx_buf_size = RX_BUF_SIZE;
-		sport->rx_periods = RX_DMA_PERIODS;
-	}
-
 	return 0;
 }
 #else
diff --git a/drivers/tty/serial/ioc3_serial.c b/drivers/tty/serial/ioc3_serial.c
index 2a61dd6b4009..906ee770ff4a 100644
--- a/drivers/tty/serial/ioc3_serial.c
+++ b/drivers/tty/serial/ioc3_serial.c
@@ -377,7 +377,7 @@ static struct ioc3_port *get_ioc3_port(struct uart_port *the_port)
  *			called per port from attach...
  * @port: port to initialize
  */
-static int inline port_init(struct ioc3_port *port)
+static inline int port_init(struct ioc3_port *port)
 {
 	uint32_t sio_cr;
 	struct port_hooks *hooks = port->ip_hooks;
@@ -1430,7 +1430,7 @@ static int receive_chars(struct uart_port *the_port)
  * @pending: interrupts to handle
  */
 
-static int inline
+static inline int
 ioc3uart_intr_one(struct ioc3_submodule *is,
 			struct ioc3_driver_data *idd,
 			unsigned int pending)
diff --git a/drivers/tty/serial/ioc4_serial.c b/drivers/tty/serial/ioc4_serial.c
index f96bcf9bee25..43d7d32eb150 100644
--- a/drivers/tty/serial/ioc4_serial.c
+++ b/drivers/tty/serial/ioc4_serial.c
@@ -824,7 +824,7 @@ pending_intrs(struct ioc4_soft *soft, int type)
  *			called per port from attach...
  * @port: port to initialize
  */
-static int inline port_init(struct ioc4_port *port)
+static inline int port_init(struct ioc4_port *port)
 {
 	uint32_t sio_cr;
 	struct hooks *hooks = port->ip_hooks;
@@ -1048,7 +1048,7 @@ static irqreturn_t ioc4_intr(int irq, void *arg)
  *			IOC4 with serial ports in the system.
  * @idd: Master module data for this IOC4
  */
-static int inline ioc4_attach_local(struct ioc4_driver_data *idd)
+static inline int ioc4_attach_local(struct ioc4_driver_data *idd)
 {
 	struct ioc4_port *port;
 	struct ioc4_port *ports[IOC4_NUM_SERIAL_PORTS];
diff --git a/drivers/tty/serial/sh-sci.c b/drivers/tty/serial/sh-sci.c
index da5ddfc14778..e08b16b070c0 100644
--- a/drivers/tty/serial/sh-sci.c
+++ b/drivers/tty/serial/sh-sci.c
@@ -1085,10 +1085,12 @@ static ssize_t rx_trigger_store(struct device *dev,
 {
 	struct uart_port *port = dev_get_drvdata(dev);
 	struct sci_port *sci = to_sci_port(port);
+	int ret;
 	long r;
 
-	if (kstrtol(buf, 0, &r) == -EINVAL)
-		return -EINVAL;
+	ret = kstrtol(buf, 0, &r);
+	if (ret)
+		return ret;
 
 	sci->rx_trigger = scif_set_rtrg(port, r);
 	if (port->type == PORT_SCIFA || port->type == PORT_SCIFB)
@@ -1116,10 +1118,12 @@ static ssize_t rx_fifo_timeout_store(struct device *dev,
 {
 	struct uart_port *port = dev_get_drvdata(dev);
 	struct sci_port *sci = to_sci_port(port);
+	int ret;
 	long r;
 
-	if (kstrtol(buf, 0, &r) == -EINVAL)
-		return -EINVAL;
+	ret = kstrtol(buf, 0, &r);
+	if (ret)
+		return ret;
 	sci->rx_fifo_timeout = r;
 	scif_set_rtrg(port, 1);
 	if (r > 0)
diff --git a/drivers/tty/serial/st-asc.c b/drivers/tty/serial/st-asc.c
index f5335be344f6..6b0ca65027d0 100644
--- a/drivers/tty/serial/st-asc.c
+++ b/drivers/tty/serial/st-asc.c
@@ -758,6 +758,7 @@ static int asc_init_port(struct asc_port *ascport,
 	if (IS_ERR(ascport->pinctrl)) {
 		ret = PTR_ERR(ascport->pinctrl);
 		dev_err(&pdev->dev, "Failed to get Pinctrl: %d\n", ret);
+		return ret;
 	}
 
 	ascport->states[DEFAULT] =
diff --git a/drivers/usb/class/cdc-acm.c b/drivers/usb/class/cdc-acm.c
index 5357d83bbda2..5e056064259c 100644
--- a/drivers/usb/class/cdc-acm.c
+++ b/drivers/usb/class/cdc-acm.c
@@ -1829,6 +1829,9 @@ static const struct usb_device_id acm_ids[] = {
 	{ USB_DEVICE(0x1576, 0x03b1), /* Maretron USB100 */
 	.driver_info = NO_UNION_NORMAL, /* reports zero length descriptor */
 	},
+	{ USB_DEVICE(0xfff0, 0x0100), /* DATECS FP-2000 */
+	.driver_info = NO_UNION_NORMAL, /* reports zero length descriptor */
+	},
 
 	{ USB_DEVICE(0x2912, 0x0001), /* ATOL FPrint */
 	.driver_info = CLEAR_HALT_CONDITIONS,
diff --git a/drivers/usb/core/hcd.c b/drivers/usb/core/hcd.c
index ab1bb3b538ac..7f277b092b5b 100644
--- a/drivers/usb/core/hcd.c
+++ b/drivers/usb/core/hcd.c
@@ -1888,7 +1888,7 @@ void usb_hcd_flush_endpoint(struct usb_device *udev,
 	/* No more submits can occur */
 	spin_lock_irq(&hcd_urb_list_lock);
 rescan:
-	list_for_each_entry (urb, &ep->urb_list, urb_list) {
+	list_for_each_entry_reverse(urb, &ep->urb_list, urb_list) {
 		int	is_in;
 
 		if (urb->unlinked)
@@ -2485,6 +2485,8 @@ void usb_hc_died (struct usb_hcd *hcd)
 	}
 	if (usb_hcd_is_primary_hcd(hcd) && hcd->shared_hcd) {
 		hcd = hcd->shared_hcd;
+		clear_bit(HCD_FLAG_RH_RUNNING, &hcd->flags);
+		set_bit(HCD_FLAG_DEAD, &hcd->flags);
 		if (hcd->rh_registered) {
 			clear_bit(HCD_FLAG_POLL_RH, &hcd->flags);
 
diff --git a/drivers/usb/core/hub.c b/drivers/usb/core/hub.c
index 6e6797d145dd..822f8c50e423 100644
--- a/drivers/usb/core/hub.c
+++ b/drivers/usb/core/hub.c
@@ -4725,7 +4725,8 @@ hub_power_remaining(struct usb_hub *hub)
 static void hub_port_connect(struct usb_hub *hub, int port1, u16 portstatus,
 		u16 portchange)
 {
-	int status, i;
+	int status = -ENODEV;
+	int i;
 	unsigned unit_load;
 	struct usb_device *hdev = hub->hdev;
 	struct usb_hcd *hcd = bus_to_hcd(hdev->bus);
@@ -4929,9 +4930,10 @@ loop:
 
 done:
 	hub_port_disable(hub, port1, 1);
-	if (hcd->driver->relinquish_port && !hub->hdev->parent)
-		hcd->driver->relinquish_port(hcd, port1);
-
+	if (hcd->driver->relinquish_port && !hub->hdev->parent) {
+		if (status != -ENOTCONN && status != -ENODEV)
+			hcd->driver->relinquish_port(hcd, port1);
+	}
 }
 
 /* Handle physical or logical connection change events.
diff --git a/drivers/usb/core/quirks.c b/drivers/usb/core/quirks.c
index 3116edfcdc18..574da2b4529c 100644
--- a/drivers/usb/core/quirks.c
+++ b/drivers/usb/core/quirks.c
@@ -150,6 +150,9 @@ static const struct usb_device_id usb_quirk_list[] = {
 	/* appletouch */
 	{ USB_DEVICE(0x05ac, 0x021a), .driver_info = USB_QUIRK_RESET_RESUME },
 
+	/* Genesys Logic hub, internally used by Moshi USB to Ethernet Adapter */
+	{ USB_DEVICE(0x05e3, 0x0616), .driver_info = USB_QUIRK_NO_LPM },
+
 	/* Avision AV600U */
 	{ USB_DEVICE(0x0638, 0x0a13), .driver_info =
 	  USB_QUIRK_STRING_FETCH_255 },
@@ -249,6 +252,7 @@ static const struct usb_device_id usb_amd_resume_quirk_list[] = {
 	{ USB_DEVICE(0x093a, 0x2500), .driver_info = USB_QUIRK_RESET_RESUME },
 	{ USB_DEVICE(0x093a, 0x2510), .driver_info = USB_QUIRK_RESET_RESUME },
 	{ USB_DEVICE(0x093a, 0x2521), .driver_info = USB_QUIRK_RESET_RESUME },
+	{ USB_DEVICE(0x03f0, 0x2b4a), .driver_info = USB_QUIRK_RESET_RESUME },
 
 	/* Logitech Optical Mouse M90/M100 */
 	{ USB_DEVICE(0x046d, 0xc05a), .driver_info = USB_QUIRK_RESET_RESUME },
diff --git a/drivers/usb/dwc2/gadget.c b/drivers/usb/dwc2/gadget.c
index bc3b3fda5000..c4066cd77e47 100644
--- a/drivers/usb/dwc2/gadget.c
+++ b/drivers/usb/dwc2/gadget.c
@@ -3573,6 +3573,9 @@ irq_retry:
 		/* Report disconnection if it is not already done. */
 		dwc2_hsotg_disconnect(hsotg);
 
+		/* Reset device address to zero */
+		__bic32(hsotg->regs + DCFG, DCFG_DEVADDR_MASK);
+
 		if (usb_status & GOTGCTL_BSESVLD && connected)
 			dwc2_hsotg_core_init_disconnected(hsotg, true);
 	}
diff --git a/drivers/usb/dwc3/core.c b/drivers/usb/dwc3/core.c
index 326b302fc440..03474d3575ab 100644
--- a/drivers/usb/dwc3/core.c
+++ b/drivers/usb/dwc3/core.c
@@ -766,15 +766,15 @@ static int dwc3_core_init(struct dwc3 *dwc)
 			dwc->maximum_speed = USB_SPEED_HIGH;
 	}
 
-	ret = dwc3_core_soft_reset(dwc);
+	ret = dwc3_core_get_phy(dwc);
 	if (ret)
 		goto err0;
 
-	ret = dwc3_phy_setup(dwc);
+	ret = dwc3_core_soft_reset(dwc);
 	if (ret)
 		goto err0;
 
-	ret = dwc3_core_get_phy(dwc);
+	ret = dwc3_phy_setup(dwc);
 	if (ret)
 		goto err0;
 
diff --git a/drivers/usb/dwc3/dwc3-omap.c b/drivers/usb/dwc3/dwc3-omap.c
index 98926504b55b..f5aaa0cf3873 100644
--- a/drivers/usb/dwc3/dwc3-omap.c
+++ b/drivers/usb/dwc3/dwc3-omap.c
@@ -512,15 +512,6 @@ static int dwc3_omap_probe(struct platform_device *pdev)
 
 	/* check the DMA Status */
 	reg = dwc3_omap_readl(omap->base, USBOTGSS_SYSCONFIG);
-	irq_set_status_flags(omap->irq, IRQ_NOAUTOEN);
-	ret = devm_request_threaded_irq(dev, omap->irq, dwc3_omap_interrupt,
-					dwc3_omap_interrupt_thread, IRQF_SHARED,
-					"dwc3-omap", omap);
-	if (ret) {
-		dev_err(dev, "failed to request IRQ #%d --> %d\n",
-				omap->irq, ret);
-		goto err1;
-	}
 
 	ret = dwc3_omap_extcon_register(omap);
 	if (ret < 0)
@@ -532,8 +523,15 @@ static int dwc3_omap_probe(struct platform_device *pdev)
 		goto err1;
 	}
 
+	ret = devm_request_threaded_irq(dev, omap->irq, dwc3_omap_interrupt,
+					dwc3_omap_interrupt_thread, IRQF_SHARED,
+					"dwc3-omap", omap);
+	if (ret) {
+		dev_err(dev, "failed to request IRQ #%d --> %d\n",
+			omap->irq, ret);
+		goto err1;
+	}
 	dwc3_omap_enable_irqs(omap);
-	enable_irq(omap->irq);
 	return 0;
 
 err1:
diff --git a/drivers/usb/dwc3/gadget.c b/drivers/usb/dwc3/gadget.c
index 9e41605a276b..f064f1549333 100644
--- a/drivers/usb/dwc3/gadget.c
+++ b/drivers/usb/dwc3/gadget.c
@@ -191,14 +191,16 @@ void dwc3_gadget_giveback(struct dwc3_ep *dep, struct dwc3_request *req,
 
 	req->started = false;
 	list_del(&req->list);
-	req->trb = NULL;
 	req->remaining = 0;
 
 	if (req->request.status == -EINPROGRESS)
 		req->request.status = status;
 
-	usb_gadget_unmap_request_by_dev(dwc->sysdev,
-					&req->request, req->direction);
+	if (req->trb)
+		usb_gadget_unmap_request_by_dev(dwc->sysdev,
+						&req->request, req->direction);
+
+	req->trb = NULL;
 
 	trace_dwc3_gadget_giveback(req);
 
@@ -894,9 +896,40 @@ static void __dwc3_prepare_one_trb(struct dwc3_ep *dep, struct dwc3_trb *trb,
 		if (!node) {
 			trb->ctrl = DWC3_TRBCTL_ISOCHRONOUS_FIRST;
 
+			/*
+			 * USB Specification 2.0 Section 5.9.2 states that: "If
+			 * there is only a single transaction in the microframe,
+			 * only a DATA0 data packet PID is used.  If there are
+			 * two transactions per microframe, DATA1 is used for
+			 * the first transaction data packet and DATA0 is used
+			 * for the second transaction data packet.  If there are
+			 * three transactions per microframe, DATA2 is used for
+			 * the first transaction data packet, DATA1 is used for
+			 * the second, and DATA0 is used for the third."
+			 *
+			 * IOW, we should satisfy the following cases:
+			 *
+			 * 1) length <= maxpacket
+			 *	- DATA0
+			 *
+			 * 2) maxpacket < length <= (2 * maxpacket)
+			 *	- DATA1, DATA0
+			 *
+			 * 3) (2 * maxpacket) < length <= (3 * maxpacket)
+			 *	- DATA2, DATA1, DATA0
+			 */
 			if (speed == USB_SPEED_HIGH) {
 				struct usb_ep *ep = &dep->endpoint;
-				trb->size |= DWC3_TRB_SIZE_PCM1(ep->mult - 1);
+				unsigned int mult = ep->mult - 1;
+				unsigned int maxp = usb_endpoint_maxp(ep->desc);
+
+				if (length <= (2 * maxp))
+					mult--;
+
+				if (length <= maxp)
+					mult--;
+
+				trb->size |= DWC3_TRB_SIZE_PCM1(mult);
 			}
 		} else {
 			trb->ctrl = DWC3_TRBCTL_ISOCHRONOUS;
diff --git a/drivers/usb/gadget/function/f_mass_storage.c b/drivers/usb/gadget/function/f_mass_storage.c
index e80b9c123a9d..f95bddd6513f 100644
--- a/drivers/usb/gadget/function/f_mass_storage.c
+++ b/drivers/usb/gadget/function/f_mass_storage.c
@@ -2490,7 +2490,7 @@ static int fsg_main_thread(void *common_)
 		int i;
 
 		down_write(&common->filesem);
-		for (i = 0; i < ARRAY_SIZE(common->luns); --i) {
+		for (i = 0; i < ARRAY_SIZE(common->luns); i++) {
 			struct fsg_lun *curlun = common->luns[i];
 			if (!curlun || !fsg_lun_is_open(curlun))
 				continue;
diff --git a/drivers/usb/gadget/function/f_uac1.c b/drivers/usb/gadget/function/f_uac1.c
index 8656f84e17d9..29efbedc91f9 100644
--- a/drivers/usb/gadget/function/f_uac1.c
+++ b/drivers/usb/gadget/function/f_uac1.c
@@ -92,9 +92,9 @@ static struct uac_input_terminal_descriptor usb_out_it_desc = {
 	.bDescriptorType =	USB_DT_CS_INTERFACE,
 	.bDescriptorSubtype =	UAC_INPUT_TERMINAL,
 	.bTerminalID =		USB_OUT_IT_ID,
-	.wTerminalType =	UAC_TERMINAL_STREAMING,
+	.wTerminalType =	cpu_to_le16(UAC_TERMINAL_STREAMING),
 	.bAssocTerminal =	0,
-	.wChannelConfig =	0x3,
+	.wChannelConfig =	cpu_to_le16(0x3),
 };
 
 #define IO_OUT_OT_ID	2
@@ -103,7 +103,7 @@ static struct uac1_output_terminal_descriptor io_out_ot_desc = {
 	.bDescriptorType	= USB_DT_CS_INTERFACE,
 	.bDescriptorSubtype	= UAC_OUTPUT_TERMINAL,
 	.bTerminalID		= IO_OUT_OT_ID,
-	.wTerminalType		= UAC_OUTPUT_TERMINAL_SPEAKER,
+	.wTerminalType		= cpu_to_le16(UAC_OUTPUT_TERMINAL_SPEAKER),
 	.bAssocTerminal		= 0,
 	.bSourceID		= USB_OUT_IT_ID,
 };
@@ -114,9 +114,9 @@ static struct uac_input_terminal_descriptor io_in_it_desc = {
 	.bDescriptorType	= USB_DT_CS_INTERFACE,
 	.bDescriptorSubtype	= UAC_INPUT_TERMINAL,
 	.bTerminalID		= IO_IN_IT_ID,
-	.wTerminalType		= UAC_INPUT_TERMINAL_MICROPHONE,
+	.wTerminalType		= cpu_to_le16(UAC_INPUT_TERMINAL_MICROPHONE),
 	.bAssocTerminal		= 0,
-	.wChannelConfig		= 0x3,
+	.wChannelConfig		= cpu_to_le16(0x3),
 };
 
 #define USB_IN_OT_ID	4
@@ -125,7 +125,7 @@ static struct uac1_output_terminal_descriptor usb_in_ot_desc = {
 	.bDescriptorType =	USB_DT_CS_INTERFACE,
 	.bDescriptorSubtype =	UAC_OUTPUT_TERMINAL,
 	.bTerminalID =		USB_IN_OT_ID,
-	.wTerminalType =	UAC_TERMINAL_STREAMING,
+	.wTerminalType =	cpu_to_le16(UAC_TERMINAL_STREAMING),
 	.bAssocTerminal =	0,
 	.bSourceID =		IO_IN_IT_ID,
 };
@@ -174,7 +174,7 @@ static struct uac1_as_header_descriptor as_out_header_desc = {
 	.bDescriptorSubtype =	UAC_AS_GENERAL,
 	.bTerminalLink =	USB_OUT_IT_ID,
 	.bDelay =		1,
-	.wFormatTag =		UAC_FORMAT_TYPE_I_PCM,
+	.wFormatTag =		cpu_to_le16(UAC_FORMAT_TYPE_I_PCM),
 };
 
 static struct uac1_as_header_descriptor as_in_header_desc = {
@@ -183,7 +183,7 @@ static struct uac1_as_header_descriptor as_in_header_desc = {
 	.bDescriptorSubtype =	UAC_AS_GENERAL,
 	.bTerminalLink =	USB_IN_OT_ID,
 	.bDelay =		1,
-	.wFormatTag =		UAC_FORMAT_TYPE_I_PCM,
+	.wFormatTag =		cpu_to_le16(UAC_FORMAT_TYPE_I_PCM),
 };
 
 DECLARE_UAC_FORMAT_TYPE_I_DISCRETE_DESC(1);
@@ -606,8 +606,8 @@ static int f_audio_bind(struct usb_configuration *c, struct usb_function *f)
 	if (status)
 		goto fail;
 
-	audio->out_ep_maxpsize = as_out_ep_desc.wMaxPacketSize;
-	audio->in_ep_maxpsize = as_in_ep_desc.wMaxPacketSize;
+	audio->out_ep_maxpsize = le16_to_cpu(as_out_ep_desc.wMaxPacketSize);
+	audio->in_ep_maxpsize = le16_to_cpu(as_in_ep_desc.wMaxPacketSize);
 	audio->params.c_chmask = audio_opts->c_chmask;
 	audio->params.c_srate = audio_opts->c_srate;
 	audio->params.c_ssize = audio_opts->c_ssize;
diff --git a/drivers/usb/gadget/function/f_uac2.c b/drivers/usb/gadget/function/f_uac2.c
index 9082ce261e70..f05c3f3e6103 100644
--- a/drivers/usb/gadget/function/f_uac2.c
+++ b/drivers/usb/gadget/function/f_uac2.c
@@ -168,7 +168,7 @@ static struct uac2_input_terminal_descriptor usb_out_it_desc = {
 	.bAssocTerminal = 0,
 	.bCSourceID = USB_OUT_CLK_ID,
 	.iChannelNames = 0,
-	.bmControls = (CONTROL_RDWR << COPY_CTRL),
+	.bmControls = cpu_to_le16(CONTROL_RDWR << COPY_CTRL),
 };
 
 /* Input Terminal for I/O-In */
@@ -182,7 +182,7 @@ static struct uac2_input_terminal_descriptor io_in_it_desc = {
 	.bAssocTerminal = 0,
 	.bCSourceID = USB_IN_CLK_ID,
 	.iChannelNames = 0,
-	.bmControls = (CONTROL_RDWR << COPY_CTRL),
+	.bmControls = cpu_to_le16(CONTROL_RDWR << COPY_CTRL),
 };
 
 /* Ouput Terminal for USB_IN */
@@ -196,7 +196,7 @@ static struct uac2_output_terminal_descriptor usb_in_ot_desc = {
 	.bAssocTerminal = 0,
 	.bSourceID = IO_IN_IT_ID,
 	.bCSourceID = USB_IN_CLK_ID,
-	.bmControls = (CONTROL_RDWR << COPY_CTRL),
+	.bmControls = cpu_to_le16(CONTROL_RDWR << COPY_CTRL),
 };
 
 /* Ouput Terminal for I/O-Out */
@@ -210,7 +210,7 @@ static struct uac2_output_terminal_descriptor io_out_ot_desc = {
 	.bAssocTerminal = 0,
 	.bSourceID = USB_OUT_IT_ID,
 	.bCSourceID = USB_OUT_CLK_ID,
-	.bmControls = (CONTROL_RDWR << COPY_CTRL),
+	.bmControls = cpu_to_le16(CONTROL_RDWR << COPY_CTRL),
 };
 
 static struct uac2_ac_header_descriptor ac_hdr_desc = {
@@ -220,9 +220,10 @@ static struct uac2_ac_header_descriptor ac_hdr_desc = {
 	.bDescriptorSubtype = UAC_MS_HEADER,
 	.bcdADC = cpu_to_le16(0x200),
 	.bCategory = UAC2_FUNCTION_IO_BOX,
-	.wTotalLength = sizeof in_clk_src_desc + sizeof out_clk_src_desc
-			 + sizeof usb_out_it_desc + sizeof io_in_it_desc
-			+ sizeof usb_in_ot_desc + sizeof io_out_ot_desc,
+	.wTotalLength = cpu_to_le16(sizeof in_clk_src_desc
+			+ sizeof out_clk_src_desc + sizeof usb_out_it_desc
+			+ sizeof io_in_it_desc + sizeof usb_in_ot_desc
+			+ sizeof io_out_ot_desc),
 	.bmControls = 0,
 };
 
@@ -569,10 +570,12 @@ afunc_bind(struct usb_configuration *cfg, struct usb_function *fn)
 		return ret;
 	}
 
-	agdev->in_ep_maxpsize = max(fs_epin_desc.wMaxPacketSize,
-					hs_epin_desc.wMaxPacketSize);
-	agdev->out_ep_maxpsize = max(fs_epout_desc.wMaxPacketSize,
-					hs_epout_desc.wMaxPacketSize);
+	agdev->in_ep_maxpsize = max_t(u16,
+				le16_to_cpu(fs_epin_desc.wMaxPacketSize),
+				le16_to_cpu(hs_epin_desc.wMaxPacketSize));
+	agdev->out_ep_maxpsize = max_t(u16,
+				le16_to_cpu(fs_epout_desc.wMaxPacketSize),
+				le16_to_cpu(hs_epout_desc.wMaxPacketSize));
 
 	hs_epout_desc.bEndpointAddress = fs_epout_desc.bEndpointAddress;
 	hs_epin_desc.bEndpointAddress = fs_epin_desc.bEndpointAddress;
diff --git a/drivers/usb/gadget/udc/Kconfig b/drivers/usb/gadget/udc/Kconfig
index 9ffb11ec9ed9..7cd5c969fcbe 100644
--- a/drivers/usb/gadget/udc/Kconfig
+++ b/drivers/usb/gadget/udc/Kconfig
@@ -192,7 +192,7 @@ config USB_RENESAS_USBHS_UDC
 config USB_RENESAS_USB3
 	tristate 'Renesas USB3.0 Peripheral controller'
 	depends on ARCH_RENESAS || COMPILE_TEST
-	depends on EXTCON
+	depends on EXTCON && HAS_DMA
 	help
 	   Renesas USB3.0 Peripheral controller is a USB peripheral controller
 	   that supports super, high, and full speed USB 3.0 data transfers.
@@ -257,6 +257,7 @@ config USB_MV_U3D
 
 config USB_SNP_CORE
 	depends on (USB_AMD5536UDC || USB_SNP_UDC_PLAT)
+	depends on HAS_DMA
 	tristate
 	help
 	  This enables core driver support for Synopsys USB 2.0 Device
@@ -271,7 +272,7 @@ config USB_SNP_CORE
 
 config USB_SNP_UDC_PLAT
 	tristate "Synopsys USB 2.0 Device controller"
-	depends on (USB_GADGET && OF)
+	depends on USB_GADGET && OF && HAS_DMA
 	select USB_GADGET_DUALSPEED
 	select USB_SNP_CORE
 	default ARCH_BCM_IPROC
diff --git a/drivers/usb/gadget/udc/renesas_usb3.c b/drivers/usb/gadget/udc/renesas_usb3.c
index d8278322d5ac..e1de8fe599a3 100644
--- a/drivers/usb/gadget/udc/renesas_usb3.c
+++ b/drivers/usb/gadget/udc/renesas_usb3.c
@@ -89,6 +89,9 @@
 
 /* USB_COM_CON */
 #define USB_COM_CON_CONF		BIT(24)
+#define USB_COM_CON_PN_WDATAIF_NL	BIT(23)
+#define USB_COM_CON_PN_RDATAIF_NL	BIT(22)
+#define USB_COM_CON_PN_LSTTR_PP		BIT(21)
 #define USB_COM_CON_SPD_MODE		BIT(17)
 #define USB_COM_CON_EP0_EN		BIT(16)
 #define USB_COM_CON_DEV_ADDR_SHIFT	8
@@ -686,6 +689,9 @@ static void renesas_usb3_init_controller(struct renesas_usb3 *usb3)
 {
 	usb3_init_axi_bridge(usb3);
 	usb3_init_epc_registers(usb3);
+	usb3_set_bit(usb3, USB_COM_CON_PN_WDATAIF_NL |
+		     USB_COM_CON_PN_RDATAIF_NL | USB_COM_CON_PN_LSTTR_PP,
+		     USB3_USB_COM_CON);
 	usb3_write(usb3, USB_OTG_IDMON, USB3_USB_OTG_INT_STA);
 	usb3_write(usb3, USB_OTG_IDMON, USB3_USB_OTG_INT_ENA);
 
@@ -832,21 +838,32 @@ static struct renesas_usb3_request *usb3_get_request(struct renesas_usb3_ep
 	return usb3_req;
 }
 
-static void usb3_request_done(struct renesas_usb3_ep *usb3_ep,
-			      struct renesas_usb3_request *usb3_req, int status)
+static void __usb3_request_done(struct renesas_usb3_ep *usb3_ep,
+				struct renesas_usb3_request *usb3_req,
+				int status)
 {
 	struct renesas_usb3 *usb3 = usb3_ep_to_usb3(usb3_ep);
-	unsigned long flags;
 
 	dev_dbg(usb3_to_dev(usb3), "giveback: ep%2d, %u, %u, %d\n",
 		usb3_ep->num, usb3_req->req.length, usb3_req->req.actual,
 		status);
 	usb3_req->req.status = status;
-	spin_lock_irqsave(&usb3->lock, flags);
 	usb3_ep->started = false;
 	list_del_init(&usb3_req->queue);
-	spin_unlock_irqrestore(&usb3->lock, flags);
+	spin_unlock(&usb3->lock);
 	usb_gadget_giveback_request(&usb3_ep->ep, &usb3_req->req);
+	spin_lock(&usb3->lock);
+}
+
+static void usb3_request_done(struct renesas_usb3_ep *usb3_ep,
+			      struct renesas_usb3_request *usb3_req, int status)
+{
+	struct renesas_usb3 *usb3 = usb3_ep_to_usb3(usb3_ep);
+	unsigned long flags;
+
+	spin_lock_irqsave(&usb3->lock, flags);
+	__usb3_request_done(usb3_ep, usb3_req, status);
+	spin_unlock_irqrestore(&usb3->lock, flags);
 }
 
 static void usb3_irq_epc_pipe0_status_end(struct renesas_usb3 *usb3)
@@ -1369,7 +1386,7 @@ static int renesas_usb3_dma_free_prd(struct renesas_usb3 *usb3,
 
 	usb3_for_each_dma(usb3, dma, i) {
 		if (dma->prd) {
-			dma_free_coherent(dev, USB3_DMA_MAX_XFER_SIZE,
+			dma_free_coherent(dev, USB3_DMA_PRD_SIZE,
 					  dma->prd, dma->prd_dma);
 			dma->prd = NULL;
 		}
@@ -1409,12 +1426,12 @@ static void usb3_start_pipen(struct renesas_usb3_ep *usb3_ep,
 	int ret = -EAGAIN;
 	u32 enable_bits = 0;
 
+	spin_lock_irqsave(&usb3->lock, flags);
 	if (usb3_ep->halt || usb3_ep->started)
-		return;
+		goto out;
 	if (usb3_req != usb3_req_first)
-		return;
+		goto out;
 
-	spin_lock_irqsave(&usb3->lock, flags);
 	if (usb3_pn_change(usb3, usb3_ep->num) < 0)
 		goto out;
 
diff --git a/drivers/usb/gadget/udc/snps_udc_plat.c b/drivers/usb/gadget/udc/snps_udc_plat.c
index 2e11f19e07ae..f7b4d0f159e4 100644
--- a/drivers/usb/gadget/udc/snps_udc_plat.c
+++ b/drivers/usb/gadget/udc/snps_udc_plat.c
@@ -28,7 +28,7 @@
 /* description */
 #define UDC_MOD_DESCRIPTION     "Synopsys UDC platform driver"
 
-void start_udc(struct udc *udc)
+static void start_udc(struct udc *udc)
 {
 	if (udc->driver) {
 		dev_info(udc->dev, "Connecting...\n");
@@ -38,7 +38,7 @@ void start_udc(struct udc *udc)
 	}
 }
 
-void stop_udc(struct udc *udc)
+static void stop_udc(struct udc *udc)
 {
 	int tmp;
 	u32 reg;
@@ -76,7 +76,7 @@ void stop_udc(struct udc *udc)
 	dev_info(udc->dev, "Device disconnected\n");
 }
 
-void udc_drd_work(struct work_struct *work)
+static void udc_drd_work(struct work_struct *work)
 {
 	struct udc *udc;
 
diff --git a/drivers/usb/host/pci-quirks.c b/drivers/usb/host/pci-quirks.c
index a9a1e4c40480..c8f38649f749 100644
--- a/drivers/usb/host/pci-quirks.c
+++ b/drivers/usb/host/pci-quirks.c
@@ -77,6 +77,16 @@
 #define USB_INTEL_USB3_PSSEN   0xD8
 #define USB_INTEL_USB3PRM      0xDC
 
+/* ASMEDIA quirk use */
+#define ASMT_DATA_WRITE0_REG	0xF8
+#define ASMT_DATA_WRITE1_REG	0xFC
+#define ASMT_CONTROL_REG	0xE0
+#define ASMT_CONTROL_WRITE_BIT	0x02
+#define ASMT_WRITEREG_CMD	0x10423
+#define ASMT_FLOWCTL_ADDR	0xFA30
+#define ASMT_FLOWCTL_DATA	0xBA
+#define ASMT_PSEUDO_DATA	0
+
 /*
  * amd_chipset_gen values represent AMD different chipset generations
  */
@@ -88,6 +98,7 @@ enum amd_chipset_gen {
 	AMD_CHIPSET_HUDSON2,
 	AMD_CHIPSET_BOLTON,
 	AMD_CHIPSET_YANGTZE,
+	AMD_CHIPSET_TAISHAN,
 	AMD_CHIPSET_UNKNOWN,
 };
 
@@ -131,6 +142,11 @@ static int amd_chipset_sb_type_init(struct amd_chipset_info *pinfo)
 			pinfo->sb_type.gen = AMD_CHIPSET_SB700;
 		else if (rev >= 0x40 && rev <= 0x4f)
 			pinfo->sb_type.gen = AMD_CHIPSET_SB800;
+	}
+	pinfo->smbus_dev = pci_get_device(PCI_VENDOR_ID_AMD,
+					  0x145c, NULL);
+	if (pinfo->smbus_dev) {
+		pinfo->sb_type.gen = AMD_CHIPSET_TAISHAN;
 	} else {
 		pinfo->smbus_dev = pci_get_device(PCI_VENDOR_ID_AMD,
 				PCI_DEVICE_ID_AMD_HUDSON2_SMBUS, NULL);
@@ -250,11 +266,12 @@ int usb_hcd_amd_remote_wakeup_quirk(struct pci_dev *pdev)
 {
 	/* Make sure amd chipset type has already been initialized */
 	usb_amd_find_chipset_info();
-	if (amd_chipset.sb_type.gen != AMD_CHIPSET_YANGTZE)
-		return 0;
-
-	dev_dbg(&pdev->dev, "QUIRK: Enable AMD remote wakeup fix\n");
-	return 1;
+	if (amd_chipset.sb_type.gen == AMD_CHIPSET_YANGTZE ||
+	    amd_chipset.sb_type.gen == AMD_CHIPSET_TAISHAN) {
+		dev_dbg(&pdev->dev, "QUIRK: Enable AMD remote wakeup fix\n");
+		return 1;
+	}
+	return 0;
 }
 EXPORT_SYMBOL_GPL(usb_hcd_amd_remote_wakeup_quirk);
 
@@ -412,6 +429,50 @@ void usb_amd_quirk_pll_disable(void)
 }
 EXPORT_SYMBOL_GPL(usb_amd_quirk_pll_disable);
 
+static int usb_asmedia_wait_write(struct pci_dev *pdev)
+{
+	unsigned long retry_count;
+	unsigned char value;
+
+	for (retry_count = 1000; retry_count > 0; --retry_count) {
+
+		pci_read_config_byte(pdev, ASMT_CONTROL_REG, &value);
+
+		if (value == 0xff) {
+			dev_err(&pdev->dev, "%s: check_ready ERROR", __func__);
+			return -EIO;
+		}
+
+		if ((value & ASMT_CONTROL_WRITE_BIT) == 0)
+			return 0;
+
+		usleep_range(40, 60);
+	}
+
+	dev_warn(&pdev->dev, "%s: check_write_ready timeout", __func__);
+	return -ETIMEDOUT;
+}
+
+void usb_asmedia_modifyflowcontrol(struct pci_dev *pdev)
+{
+	if (usb_asmedia_wait_write(pdev) != 0)
+		return;
+
+	/* send command and address to device */
+	pci_write_config_dword(pdev, ASMT_DATA_WRITE0_REG, ASMT_WRITEREG_CMD);
+	pci_write_config_dword(pdev, ASMT_DATA_WRITE1_REG, ASMT_FLOWCTL_ADDR);
+	pci_write_config_byte(pdev, ASMT_CONTROL_REG, ASMT_CONTROL_WRITE_BIT);
+
+	if (usb_asmedia_wait_write(pdev) != 0)
+		return;
+
+	/* send data to device */
+	pci_write_config_dword(pdev, ASMT_DATA_WRITE0_REG, ASMT_FLOWCTL_DATA);
+	pci_write_config_dword(pdev, ASMT_DATA_WRITE1_REG, ASMT_PSEUDO_DATA);
+	pci_write_config_byte(pdev, ASMT_CONTROL_REG, ASMT_CONTROL_WRITE_BIT);
+}
+EXPORT_SYMBOL_GPL(usb_asmedia_modifyflowcontrol);
+
 void usb_amd_quirk_pll_enable(void)
 {
 	usb_amd_quirk_pll(0);
@@ -1096,3 +1157,23 @@ static void quirk_usb_early_handoff(struct pci_dev *pdev)
 }
 DECLARE_PCI_FIXUP_CLASS_FINAL(PCI_ANY_ID, PCI_ANY_ID,
 			PCI_CLASS_SERIAL_USB, 8, quirk_usb_early_handoff);
+
+bool usb_xhci_needs_pci_reset(struct pci_dev *pdev)
+{
+	/*
+	 * Our dear uPD72020{1,2} friend only partially resets when
+	 * asked to via the XHCI interface, and may end up doing DMA
+	 * at the wrong addresses, as it keeps the top 32bit of some
+	 * addresses from its previous programming under obscure
+	 * circumstances.
+	 * Give it a good wack at probe time. Unfortunately, this
+	 * needs to happen before we've had a chance to discover any
+	 * quirk, or the system will be in a rather bad state.
+	 */
+	if (pdev->vendor == PCI_VENDOR_ID_RENESAS &&
+	    (pdev->device == 0x0014 || pdev->device == 0x0015))
+		return true;
+
+	return false;
+}
+EXPORT_SYMBOL_GPL(usb_xhci_needs_pci_reset);
diff --git a/drivers/usb/host/pci-quirks.h b/drivers/usb/host/pci-quirks.h
index 0222195bd5b0..5582cbafecd4 100644
--- a/drivers/usb/host/pci-quirks.h
+++ b/drivers/usb/host/pci-quirks.h
@@ -11,13 +11,16 @@ bool usb_amd_prefetch_quirk(void);
 void usb_amd_dev_put(void);
 void usb_amd_quirk_pll_disable(void);
 void usb_amd_quirk_pll_enable(void);
+void usb_asmedia_modifyflowcontrol(struct pci_dev *pdev);
 void usb_enable_intel_xhci_ports(struct pci_dev *xhci_pdev);
 void usb_disable_xhci_ports(struct pci_dev *xhci_pdev);
 void sb800_prefetch(struct device *dev, int on);
+bool usb_xhci_needs_pci_reset(struct pci_dev *pdev);
 #else
 struct pci_dev;
 static inline void usb_amd_quirk_pll_disable(void) {}
 static inline void usb_amd_quirk_pll_enable(void) {}
+static inline void usb_asmedia_modifyflowcontrol(struct pci_dev *pdev) {}
 static inline void usb_amd_dev_put(void) {}
 static inline void usb_disable_xhci_ports(struct pci_dev *xhci_pdev) {}
 static inline void sb800_prefetch(struct device *dev, int on) {}
diff --git a/drivers/usb/host/xhci-hub.c b/drivers/usb/host/xhci-hub.c
index 1adae9eab831..00721e8807ab 100644
--- a/drivers/usb/host/xhci-hub.c
+++ b/drivers/usb/host/xhci-hub.c
@@ -398,14 +398,21 @@ static int xhci_stop_device(struct xhci_hcd *xhci, int slot_id, int suspend)
 	spin_lock_irqsave(&xhci->lock, flags);
 	for (i = LAST_EP_INDEX; i > 0; i--) {
 		if (virt_dev->eps[i].ring && virt_dev->eps[i].ring->dequeue) {
+			struct xhci_ep_ctx *ep_ctx;
 			struct xhci_command *command;
+
+			ep_ctx = xhci_get_ep_ctx(xhci, virt_dev->out_ctx, i);
+
+			/* Check ep is running, required by AMD SNPS 3.1 xHC */
+			if (GET_EP_CTX_STATE(ep_ctx) != EP_STATE_RUNNING)
+				continue;
+
 			command = xhci_alloc_command(xhci, false, false,
 						     GFP_NOWAIT);
 			if (!command) {
 				spin_unlock_irqrestore(&xhci->lock, flags);
 				xhci_free_command(xhci, cmd);
 				return -ENOMEM;
-
 			}
 			xhci_queue_stop_endpoint(xhci, command, slot_id, i,
 						 suspend);
@@ -603,12 +610,14 @@ static int xhci_enter_test_mode(struct xhci_hcd *xhci,
 
 	/* Disable all Device Slots */
 	xhci_dbg(xhci, "Disable all slots\n");
+	spin_unlock_irqrestore(&xhci->lock, *flags);
 	for (i = 1; i <= HCS_MAX_SLOTS(xhci->hcs_params1); i++) {
 		retval = xhci_disable_slot(xhci, NULL, i);
 		if (retval)
 			xhci_err(xhci, "Failed to disable slot %d, %d. Enter test mode anyway\n",
 				 i, retval);
 	}
+	spin_lock_irqsave(&xhci->lock, *flags);
 	/* Put all ports to the Disable state by clear PP */
 	xhci_dbg(xhci, "Disable all port (PP = 0)\n");
 	/* Power off USB3 ports*/
@@ -897,6 +906,9 @@ static u32 xhci_get_port_status(struct usb_hcd *hcd,
 			clear_bit(wIndex, &bus_state->resuming_ports);
 
 			set_bit(wIndex, &bus_state->rexit_ports);
+
+			xhci_test_and_clear_bit(xhci, port_array, wIndex,
+						PORT_PLC);
 			xhci_set_link_state(xhci, port_array, wIndex,
 					XDEV_U0);
 
diff --git a/drivers/usb/host/xhci-pci.c b/drivers/usb/host/xhci-pci.c
index 53882e2babbb..8071c8fdd15e 100644
--- a/drivers/usb/host/xhci-pci.c
+++ b/drivers/usb/host/xhci-pci.c
@@ -59,6 +59,8 @@
 #define PCI_DEVICE_ID_AMD_PROMONTORYA_2			0x43bb
 #define PCI_DEVICE_ID_AMD_PROMONTORYA_1			0x43bc
 
+#define PCI_DEVICE_ID_ASMEDIA_1042A_XHCI		0x1142
+
 static const char hcd_name[] = "xhci_hcd";
 
 static struct hc_driver __read_mostly xhci_pci_hc_driver;
@@ -217,6 +219,10 @@ static void xhci_pci_quirks(struct device *dev, struct xhci_hcd *xhci)
 			pdev->device == 0x1142)
 		xhci->quirks |= XHCI_TRUST_TX_LENGTH;
 
+	if (pdev->vendor == PCI_VENDOR_ID_ASMEDIA &&
+		pdev->device == PCI_DEVICE_ID_ASMEDIA_1042A_XHCI)
+		xhci->quirks |= XHCI_ASMEDIA_MODIFY_FLOWCONTROL;
+
 	if (pdev->vendor == PCI_VENDOR_ID_TI && pdev->device == 0x8241)
 		xhci->quirks |= XHCI_LIMIT_ENDPOINT_INTERVAL_7;
 
@@ -278,6 +284,13 @@ static int xhci_pci_probe(struct pci_dev *dev, const struct pci_device_id *id)
 
 	driver = (struct hc_driver *)id->driver_data;
 
+	/* For some HW implementation, a XHCI reset is just not enough... */
+	if (usb_xhci_needs_pci_reset(dev)) {
+		dev_info(&dev->dev, "Resetting\n");
+		if (pci_reset_function_locked(dev))
+			dev_warn(&dev->dev, "Reset failed");
+	}
+
 	/* Prevent runtime suspending between USB-2 and USB-3 initialization */
 	pm_runtime_get_noresume(&dev->dev);
 
diff --git a/drivers/usb/host/xhci-ring.c b/drivers/usb/host/xhci-ring.c
index c50c902d009e..cc368ad2b51e 100644
--- a/drivers/usb/host/xhci-ring.c
+++ b/drivers/usb/host/xhci-ring.c
@@ -864,13 +864,16 @@ static void xhci_kill_endpoint_urbs(struct xhci_hcd *xhci,
 			(ep->ep_state & EP_GETTING_NO_STREAMS)) {
 		int stream_id;
 
-		for (stream_id = 0; stream_id < ep->stream_info->num_streams;
+		for (stream_id = 1; stream_id < ep->stream_info->num_streams;
 				stream_id++) {
+			ring = ep->stream_info->stream_rings[stream_id];
+			if (!ring)
+				continue;
+
 			xhci_dbg_trace(xhci, trace_xhci_dbg_cancel_urb,
 					"Killing URBs for slot ID %u, ep index %u, stream %u",
-					slot_id, ep_index, stream_id + 1);
-			xhci_kill_ring_urbs(xhci,
-					ep->stream_info->stream_rings[stream_id]);
+					slot_id, ep_index, stream_id);
+			xhci_kill_ring_urbs(xhci, ring);
 		}
 	} else {
 		ring = ep->ring;
diff --git a/drivers/usb/host/xhci.c b/drivers/usb/host/xhci.c
index 56f85df013db..b2ff1ff1a02f 100644
--- a/drivers/usb/host/xhci.c
+++ b/drivers/usb/host/xhci.c
@@ -198,6 +198,9 @@ int xhci_reset(struct xhci_hcd *xhci)
 	if (ret)
 		return ret;
 
+	if (xhci->quirks & XHCI_ASMEDIA_MODIFY_FLOWCONTROL)
+		usb_asmedia_modifyflowcontrol(to_pci_dev(xhci_to_hcd(xhci)->self.controller));
+
 	xhci_dbg_trace(xhci, trace_xhci_dbg_init,
 			 "Wait for controller to be ready for doorbell rings");
 	/*
@@ -622,8 +625,10 @@ int xhci_run(struct usb_hcd *hcd)
 		if (!command)
 			return -ENOMEM;
 
-		xhci_queue_vendor_command(xhci, command, 0, 0, 0,
+		ret = xhci_queue_vendor_command(xhci, command, 0, 0, 0,
 				TRB_TYPE(TRB_NEC_GET_FW));
+		if (ret)
+			xhci_free_command(xhci, command);
 	}
 	xhci_dbg_trace(xhci, trace_xhci_dbg_init,
 			"Finished xhci_run for USB2 roothub");
@@ -1085,6 +1090,9 @@ int xhci_resume(struct xhci_hcd *xhci, bool hibernated)
 	if ((xhci->quirks & XHCI_COMP_MODE_QUIRK) && !comp_timer_running)
 		compliance_mode_recovery_timer_init(xhci);
 
+	if (xhci->quirks & XHCI_ASMEDIA_MODIFY_FLOWCONTROL)
+		usb_asmedia_modifyflowcontrol(to_pci_dev(hcd->self.controller));
+
 	/* Re-enable port polling. */
 	xhci_dbg(xhci, "%s: starting port polling.\n", __func__);
 	set_bit(HCD_FLAG_POLL_RH, &xhci->shared_hcd->flags);
diff --git a/drivers/usb/host/xhci.h b/drivers/usb/host/xhci.h
index 3c6da1f93c84..e3e935291ed6 100644
--- a/drivers/usb/host/xhci.h
+++ b/drivers/usb/host/xhci.h
@@ -1820,6 +1820,7 @@ struct xhci_hcd {
 #define XHCI_BROKEN_PORT_PED	(1 << 25)
 #define XHCI_LIMIT_ENDPOINT_INTERVAL_7	(1 << 26)
 #define XHCI_U2_DISABLE_WAKE	(1 << 27)
+#define XHCI_ASMEDIA_MODIFY_FLOWCONTROL	(1 << 28)
 
 	unsigned int		num_active_eps;
 	unsigned int		limit_active_eps;
diff --git a/drivers/usb/musb/musb_host.c b/drivers/usb/musb/musb_host.c
index 76decb8011eb..3344ffd5bb13 100644
--- a/drivers/usb/musb/musb_host.c
+++ b/drivers/usb/musb/musb_host.c
@@ -139,6 +139,7 @@ static void musb_h_tx_flush_fifo(struct musb_hw_ep *ep)
 				"Could not flush host TX%d fifo: csr: %04x\n",
 				ep->epnum, csr))
 			return;
+		mdelay(1);
 	}
 }
 
diff --git a/drivers/usb/phy/phy-msm-usb.c b/drivers/usb/phy/phy-msm-usb.c
index 8fb86a5f458e..3d0dd2f97415 100644
--- a/drivers/usb/phy/phy-msm-usb.c
+++ b/drivers/usb/phy/phy-msm-usb.c
@@ -197,6 +197,7 @@ struct msm_otg {
 	struct regulator *v3p3;
 	struct regulator *v1p8;
 	struct regulator *vddcx;
+	struct regulator_bulk_data supplies[3];
 
 	struct reset_control *phy_rst;
 	struct reset_control *link_rst;
@@ -1731,7 +1732,6 @@ static int msm_otg_reboot_notify(struct notifier_block *this,
 
 static int msm_otg_probe(struct platform_device *pdev)
 {
-	struct regulator_bulk_data regs[3];
 	int ret = 0;
 	struct device_node *np = pdev->dev.of_node;
 	struct msm_otg_platform_data *pdata;
@@ -1817,17 +1817,18 @@ static int msm_otg_probe(struct platform_device *pdev)
 		return motg->irq;
 	}
 
-	regs[0].supply = "vddcx";
-	regs[1].supply = "v3p3";
-	regs[2].supply = "v1p8";
+	motg->supplies[0].supply = "vddcx";
+	motg->supplies[1].supply = "v3p3";
+	motg->supplies[2].supply = "v1p8";
 
-	ret = devm_regulator_bulk_get(motg->phy.dev, ARRAY_SIZE(regs), regs);
+	ret = devm_regulator_bulk_get(motg->phy.dev, ARRAY_SIZE(motg->supplies),
+				      motg->supplies);
 	if (ret)
 		return ret;
 
-	motg->vddcx = regs[0].consumer;
-	motg->v3p3  = regs[1].consumer;
-	motg->v1p8  = regs[2].consumer;
+	motg->vddcx = motg->supplies[0].consumer;
+	motg->v3p3  = motg->supplies[1].consumer;
+	motg->v1p8  = motg->supplies[2].consumer;
 
 	clk_set_rate(motg->clk, 60000000);
 
diff --git a/drivers/usb/renesas_usbhs/common.c b/drivers/usb/renesas_usbhs/common.c
index 623c51300393..f0ce304c5aaf 100644
--- a/drivers/usb/renesas_usbhs/common.c
+++ b/drivers/usb/renesas_usbhs/common.c
@@ -752,8 +752,10 @@ static int usbhsc_resume(struct device *dev)
 	struct usbhs_priv *priv = dev_get_drvdata(dev);
 	struct platform_device *pdev = usbhs_priv_to_pdev(priv);
 
-	if (!usbhsc_flags_has(priv, USBHSF_RUNTIME_PWCTRL))
+	if (!usbhsc_flags_has(priv, USBHSF_RUNTIME_PWCTRL)) {
 		usbhsc_power_ctrl(priv, 1);
+		usbhs_mod_autonomy_mode(priv);
+	}
 
 	usbhs_platform_call(priv, phy_reset, pdev);
 
diff --git a/drivers/usb/renesas_usbhs/mod_gadget.c b/drivers/usb/renesas_usbhs/mod_gadget.c
index 5bc7a6138855..2c8161bcf5b5 100644
--- a/drivers/usb/renesas_usbhs/mod_gadget.c
+++ b/drivers/usb/renesas_usbhs/mod_gadget.c
@@ -37,6 +37,7 @@ struct usbhsg_gpriv;
 struct usbhsg_uep {
 	struct usb_ep		 ep;
 	struct usbhs_pipe	*pipe;
+	spinlock_t		lock;	/* protect the pipe */
 
 	char ep_name[EP_NAME_SIZE];
 
@@ -636,10 +637,13 @@ usbhsg_ep_enable_end:
 static int usbhsg_ep_disable(struct usb_ep *ep)
 {
 	struct usbhsg_uep *uep = usbhsg_ep_to_uep(ep);
-	struct usbhs_pipe *pipe = usbhsg_uep_to_pipe(uep);
+	struct usbhs_pipe *pipe;
+	unsigned long flags;
 
+	spin_lock_irqsave(&uep->lock, flags);
+	pipe = usbhsg_uep_to_pipe(uep);
 	if (!pipe)
-		return -EINVAL;
+		goto out;
 
 	usbhsg_pipe_disable(uep);
 	usbhs_pipe_free(pipe);
@@ -647,6 +651,9 @@ static int usbhsg_ep_disable(struct usb_ep *ep)
 	uep->pipe->mod_private	= NULL;
 	uep->pipe		= NULL;
 
+out:
+	spin_unlock_irqrestore(&uep->lock, flags);
+
 	return 0;
 }
 
@@ -696,8 +703,11 @@ static int usbhsg_ep_dequeue(struct usb_ep *ep, struct usb_request *req)
 {
 	struct usbhsg_uep *uep = usbhsg_ep_to_uep(ep);
 	struct usbhsg_request *ureq = usbhsg_req_to_ureq(req);
-	struct usbhs_pipe *pipe = usbhsg_uep_to_pipe(uep);
+	struct usbhs_pipe *pipe;
+	unsigned long flags;
 
+	spin_lock_irqsave(&uep->lock, flags);
+	pipe = usbhsg_uep_to_pipe(uep);
 	if (pipe)
 		usbhs_pkt_pop(pipe, usbhsg_ureq_to_pkt(ureq));
 
@@ -706,6 +716,7 @@ static int usbhsg_ep_dequeue(struct usb_ep *ep, struct usb_request *req)
 	 * even if the pipe is NULL.
 	 */
 	usbhsg_queue_pop(uep, ureq, -ECONNRESET);
+	spin_unlock_irqrestore(&uep->lock, flags);
 
 	return 0;
 }
@@ -852,10 +863,10 @@ static int usbhsg_try_stop(struct usbhs_priv *priv, u32 status)
 {
 	struct usbhsg_gpriv *gpriv = usbhsg_priv_to_gpriv(priv);
 	struct usbhs_mod *mod = usbhs_mod_get_current(priv);
-	struct usbhsg_uep *dcp = usbhsg_gpriv_to_dcp(gpriv);
+	struct usbhsg_uep *uep;
 	struct device *dev = usbhs_priv_to_dev(priv);
 	unsigned long flags;
-	int ret = 0;
+	int ret = 0, i;
 
 	/********************  spin lock ********************/
 	usbhs_lock(priv, flags);
@@ -887,7 +898,9 @@ static int usbhsg_try_stop(struct usbhs_priv *priv, u32 status)
 	usbhs_sys_set_test_mode(priv, 0);
 	usbhs_sys_function_ctrl(priv, 0);
 
-	usbhsg_ep_disable(&dcp->ep);
+	/* disable all eps */
+	usbhsg_for_each_uep_with_dcp(uep, gpriv, i)
+		usbhsg_ep_disable(&uep->ep);
 
 	dev_dbg(dev, "stop gadget\n");
 
@@ -1069,6 +1082,7 @@ int usbhs_mod_gadget_probe(struct usbhs_priv *priv)
 		ret = -ENOMEM;
 		goto usbhs_mod_gadget_probe_err_gpriv;
 	}
+	spin_lock_init(&uep->lock);
 
 	gpriv->transceiver = usb_get_phy(USB_PHY_TYPE_UNDEFINED);
 	dev_info(dev, "%stransceiver found\n",
diff --git a/drivers/usb/renesas_usbhs/rcar3.c b/drivers/usb/renesas_usbhs/rcar3.c
index d544b331c9f2..02b67abfc2a1 100644
--- a/drivers/usb/renesas_usbhs/rcar3.c
+++ b/drivers/usb/renesas_usbhs/rcar3.c
@@ -20,9 +20,13 @@
 /* Low Power Status register (LPSTS) */
 #define LPSTS_SUSPM	0x4000
 
-/* USB General control register 2 (UGCTRL2), bit[31:6] should be 0 */
+/*
+ * USB General control register 2 (UGCTRL2)
+ * Remarks: bit[31:11] and bit[9:6] should be 0
+ */
 #define UGCTRL2_RESERVED_3	0x00000001	/* bit[3:0] should be B'0001 */
 #define UGCTRL2_USB0SEL_OTG	0x00000030
+#define UGCTRL2_VBUSSEL		0x00000400
 
 static void usbhs_write32(struct usbhs_priv *priv, u32 reg, u32 data)
 {
@@ -34,7 +38,8 @@ static int usbhs_rcar3_power_ctrl(struct platform_device *pdev,
 {
 	struct usbhs_priv *priv = usbhs_pdev_to_priv(pdev);
 
-	usbhs_write32(priv, UGCTRL2, UGCTRL2_RESERVED_3 | UGCTRL2_USB0SEL_OTG);
+	usbhs_write32(priv, UGCTRL2, UGCTRL2_RESERVED_3 | UGCTRL2_USB0SEL_OTG |
+		      UGCTRL2_VBUSSEL);
 
 	if (enable) {
 		usbhs_bset(priv, LPSTS, LPSTS_SUSPM, LPSTS_SUSPM);
diff --git a/drivers/usb/serial/cp210x.c b/drivers/usb/serial/cp210x.c
index f64e914a8985..2d945c9f975c 100644
--- a/drivers/usb/serial/cp210x.c
+++ b/drivers/usb/serial/cp210x.c
@@ -142,6 +142,7 @@ static const struct usb_device_id id_table[] = {
 	{ USB_DEVICE(0x10C4, 0x8998) }, /* KCF Technologies PRN */
 	{ USB_DEVICE(0x10C4, 0x8A2A) }, /* HubZ dual ZigBee and Z-Wave dongle */
 	{ USB_DEVICE(0x10C4, 0x8A5E) }, /* CEL EM3588 ZigBee USB Stick Long Range */
+	{ USB_DEVICE(0x10C4, 0x8B34) }, /* Qivicon ZigBee USB Radio Stick */
 	{ USB_DEVICE(0x10C4, 0xEA60) }, /* Silicon Labs factory default */
 	{ USB_DEVICE(0x10C4, 0xEA61) }, /* Silicon Labs factory default */
 	{ USB_DEVICE(0x10C4, 0xEA70) }, /* Silicon Labs factory default */
diff --git a/drivers/usb/serial/option.c b/drivers/usb/serial/option.c
index ebe51f11105d..fe123153b1a5 100644
--- a/drivers/usb/serial/option.c
+++ b/drivers/usb/serial/option.c
@@ -2025,6 +2025,8 @@ static const struct usb_device_id option_ids[] = {
 	{ USB_DEVICE_INTERFACE_CLASS(0x2001, 0x7d04, 0xff) },			/* D-Link DWM-158 */
 	{ USB_DEVICE_INTERFACE_CLASS(0x2001, 0x7e19, 0xff),			/* D-Link DWM-221 B1 */
 	  .driver_info = (kernel_ulong_t)&net_intf4_blacklist },
+	{ USB_DEVICE_INTERFACE_CLASS(0x2001, 0x7e35, 0xff),			/* D-Link DWM-222 */
+	  .driver_info = (kernel_ulong_t)&net_intf4_blacklist },
 	{ USB_DEVICE_AND_INTERFACE_INFO(0x07d1, 0x3e01, 0xff, 0xff, 0xff) }, /* D-Link DWM-152/C1 */
 	{ USB_DEVICE_AND_INTERFACE_INFO(0x07d1, 0x3e02, 0xff, 0xff, 0xff) }, /* D-Link DWM-156/C1 */
 	{ USB_DEVICE_AND_INTERFACE_INFO(0x07d1, 0x7e11, 0xff, 0xff, 0xff) }, /* D-Link DWM-156/A3 */
diff --git a/drivers/usb/serial/pl2303.c b/drivers/usb/serial/pl2303.c
index c9ebefd8f35f..a585b477415d 100644
--- a/drivers/usb/serial/pl2303.c
+++ b/drivers/usb/serial/pl2303.c
@@ -52,6 +52,8 @@ static const struct usb_device_id id_table[] = {
 	{ USB_DEVICE(IODATA_VENDOR_ID, IODATA_PRODUCT_ID_RSAQ5) },
 	{ USB_DEVICE(ATEN_VENDOR_ID, ATEN_PRODUCT_ID),
 		.driver_info = PL2303_QUIRK_ENDPOINT_HACK },
+	{ USB_DEVICE(ATEN_VENDOR_ID, ATEN_PRODUCT_UC485),
+		.driver_info = PL2303_QUIRK_ENDPOINT_HACK },
 	{ USB_DEVICE(ATEN_VENDOR_ID, ATEN_PRODUCT_ID2) },
 	{ USB_DEVICE(ATEN_VENDOR_ID2, ATEN_PRODUCT_ID) },
 	{ USB_DEVICE(ELCOM_VENDOR_ID, ELCOM_PRODUCT_ID) },
diff --git a/drivers/usb/serial/pl2303.h b/drivers/usb/serial/pl2303.h
index 09d9be88209e..3b5a15d1dc0d 100644
--- a/drivers/usb/serial/pl2303.h
+++ b/drivers/usb/serial/pl2303.h
@@ -27,6 +27,7 @@
 #define ATEN_VENDOR_ID		0x0557
 #define ATEN_VENDOR_ID2		0x0547
 #define ATEN_PRODUCT_ID		0x2008
+#define ATEN_PRODUCT_UC485	0x2021
 #define ATEN_PRODUCT_ID2	0x2118
 
 #define IODATA_VENDOR_ID	0x04bb
diff --git a/drivers/usb/serial/safe_serial.c b/drivers/usb/serial/safe_serial.c
index 8a069aa154ed..27d7a7016298 100644
--- a/drivers/usb/serial/safe_serial.c
+++ b/drivers/usb/serial/safe_serial.c
@@ -180,7 +180,7 @@ static const __u16 crc10_table[256] = {
  * Perform a memcpy and calculate fcs using ppp 10bit CRC algorithm. Return
  * new 10 bit FCS.
  */
-static __u16 __inline__ fcs_compute10(unsigned char *sp, int len, __u16 fcs)
+static inline __u16 fcs_compute10(unsigned char *sp, int len, __u16 fcs)
 {
 	for (; len-- > 0; fcs = CRC10_FCS(fcs, *sp++));
 	return fcs;
diff --git a/drivers/usb/storage/isd200.c b/drivers/usb/storage/isd200.c
index fba4005dd737..6a7720e66595 100644
--- a/drivers/usb/storage/isd200.c
+++ b/drivers/usb/storage/isd200.c
@@ -1529,8 +1529,11 @@ static void isd200_ata_command(struct scsi_cmnd *srb, struct us_data *us)
 
 	/* Make sure driver was initialized */
 
-	if (us->extra == NULL)
+	if (us->extra == NULL) {
 		usb_stor_dbg(us, "ERROR Driver not initialized\n");
+		srb->result = DID_ERROR << 16;
+		return;
+	}
 
 	scsi_set_resid(srb, 0);
 	/* scsi_bufflen might change in protocol translation to ata */
diff --git a/drivers/usb/storage/unusual_uas.h b/drivers/usb/storage/unusual_uas.h
index cbea9f329e71..cde115359793 100644
--- a/drivers/usb/storage/unusual_uas.h
+++ b/drivers/usb/storage/unusual_uas.h
@@ -124,9 +124,9 @@ UNUSUAL_DEV(0x0bc2, 0xab2a, 0x0000, 0x9999,
 /* Reported-by: Benjamin Tissoires <benjamin.tissoires@redhat.com> */
 UNUSUAL_DEV(0x13fd, 0x3940, 0x0000, 0x9999,
 		"Initio Corporation",
-		"",
+		"INIC-3069",
 		USB_SC_DEVICE, USB_PR_DEVICE, NULL,
-		US_FL_NO_ATA_1X),
+		US_FL_NO_ATA_1X | US_FL_IGNORE_RESIDUE),
 
 /* Reported-by: Tom Arild Naess <tanaess@gmail.com> */
 UNUSUAL_DEV(0x152d, 0x0539, 0x0000, 0x9999,
diff --git a/drivers/usb/storage/usb.c b/drivers/usb/storage/usb.c
index 06615934fed1..0dceb9fa3a06 100644
--- a/drivers/usb/storage/usb.c
+++ b/drivers/usb/storage/usb.c
@@ -315,6 +315,7 @@ static int usb_stor_control_thread(void * __us)
 {
 	struct us_data *us = (struct us_data *)__us;
 	struct Scsi_Host *host = us_to_host(us);
+	struct scsi_cmnd *srb;
 
 	for (;;) {
 		usb_stor_dbg(us, "*** thread sleeping\n");
@@ -330,6 +331,7 @@ static int usb_stor_control_thread(void * __us)
 		scsi_lock(host);
 
 		/* When we are called with no command pending, we're done */
+		srb = us->srb;
 		if (us->srb == NULL) {
 			scsi_unlock(host);
 			mutex_unlock(&us->dev_mutex);
@@ -398,14 +400,11 @@ static int usb_stor_control_thread(void * __us)
 		/* lock access to the state */
 		scsi_lock(host);
 
-		/* indicate that the command is done */
-		if (us->srb->result != DID_ABORT << 16) {
-			usb_stor_dbg(us, "scsi cmd done, result=0x%x\n",
-				     us->srb->result);
-			us->srb->scsi_done(us->srb);
-		} else {
+		/* was the command aborted? */
+		if (us->srb->result == DID_ABORT << 16) {
 SkipForAbort:
 			usb_stor_dbg(us, "scsi command aborted\n");
+			srb = NULL;	/* Don't call srb->scsi_done() */
 		}
 
 		/*
@@ -429,6 +428,13 @@ SkipForAbort:
 
 		/* unlock the device pointers */
 		mutex_unlock(&us->dev_mutex);
+
+		/* now that the locks are released, notify the SCSI core */
+		if (srb) {
+			usb_stor_dbg(us, "scsi cmd done, result=0x%x\n",
+					srb->result);
+			srb->scsi_done(srb);
+		}
 	} /* for (;;) */
 
 	/* Wait until we are told to stop */
diff --git a/drivers/usb/typec/ucsi/ucsi.h b/drivers/usb/typec/ucsi/ucsi.h
index 6b0d2f0918c6..8a88f45822e3 100644
--- a/drivers/usb/typec/ucsi/ucsi.h
+++ b/drivers/usb/typec/ucsi/ucsi.h
@@ -3,6 +3,7 @@
 #define __DRIVER_USB_TYPEC_UCSI_H
 
 #include <linux/bitops.h>
+#include <linux/device.h>
 #include <linux/types.h>
 
 /* -------------------------------------------------------------------------- */
diff --git a/drivers/vfio/pci/vfio_pci.c b/drivers/vfio/pci/vfio_pci.c
index 324c52e3a1a4..f041b1a6cf66 100644
--- a/drivers/vfio/pci/vfio_pci.c
+++ b/drivers/vfio/pci/vfio_pci.c
@@ -195,11 +195,11 @@ static bool vfio_pci_nointx(struct pci_dev *pdev)
 	switch (pdev->vendor) {
 	case PCI_VENDOR_ID_INTEL:
 		switch (pdev->device) {
-		/* All i40e (XL710/X710) 10/20/40GbE NICs */
+		/* All i40e (XL710/X710/XXV710) 10/20/25/40GbE NICs */
 		case 0x1572:
 		case 0x1574:
 		case 0x1580 ... 0x1581:
-		case 0x1583 ... 0x1589:
+		case 0x1583 ... 0x158b:
 		case 0x37d0 ... 0x37d2:
 			return true;
 		default:
@@ -226,7 +226,14 @@ static int vfio_pci_enable(struct vfio_pci_device *vdev)
 	if (ret)
 		return ret;
 
-	vdev->reset_works = (pci_reset_function(pdev) == 0);
+	/* If reset fails because of the device lock, fail this path entirely */
+	ret = pci_try_reset_function(pdev);
+	if (ret == -EAGAIN) {
+		pci_disable_device(pdev);
+		return ret;
+	}
+
+	vdev->reset_works = !ret;
 	pci_save_state(pdev);
 	vdev->pci_saved_state = pci_store_saved_state(pdev);
 	if (!vdev->pci_saved_state)
diff --git a/drivers/vfio/pci/vfio_pci_config.c b/drivers/vfio/pci/vfio_pci_config.c
index 330a57024cbc..5628fe114347 100644
--- a/drivers/vfio/pci/vfio_pci_config.c
+++ b/drivers/vfio/pci/vfio_pci_config.c
@@ -839,7 +839,7 @@ static int vfio_exp_config_write(struct vfio_pci_device *vdev, int pos,
 /* Permissions for PCI Express capability */
 static int __init init_pci_cap_exp_perm(struct perm_bits *perm)
 {
-	/* Alloc larger of two possible sizes */
+	/* Alloc largest of possible sizes */
 	if (alloc_perm_bits(perm, PCI_CAP_EXP_ENDPOINT_SIZEOF_V2))
 		return -ENOMEM;
 
@@ -1243,11 +1243,16 @@ static int vfio_cap_len(struct vfio_pci_device *vdev, u8 cap, u8 pos)
 			vdev->extended_caps = (dword != 0);
 		}
 
-		/* length based on version */
-		if ((pcie_caps_reg(pdev) & PCI_EXP_FLAGS_VERS) == 1)
+		/* length based on version and type */
+		if ((pcie_caps_reg(pdev) & PCI_EXP_FLAGS_VERS) == 1) {
+			if (pci_pcie_type(pdev) == PCI_EXP_TYPE_RC_END)
+				return 0xc; /* "All Devices" only, no link */
 			return PCI_CAP_EXP_ENDPOINT_SIZEOF_V1;
-		else
+		} else {
+			if (pci_pcie_type(pdev) == PCI_EXP_TYPE_RC_END)
+				return 0x2c; /* No link */
 			return PCI_CAP_EXP_ENDPOINT_SIZEOF_V2;
+		}
 	case PCI_CAP_ID_HT:
 		ret = pci_read_config_byte(pdev, pos + 3, &byte);
 		if (ret)
diff --git a/drivers/vfio/vfio.c b/drivers/vfio/vfio.c
index 561084ab387f..330d50582f40 100644
--- a/drivers/vfio/vfio.c
+++ b/drivers/vfio/vfio.c
@@ -382,7 +382,7 @@ static struct vfio_group *vfio_create_group(struct iommu_group *iommu_group)
 	if (IS_ERR(dev)) {
 		vfio_free_group_minor(minor);
 		vfio_group_unlock_and_free(group);
-		return (struct vfio_group *)dev; /* ERR_PTR */
+		return ERR_CAST(dev);
 	}
 
 	group->minor = minor;
@@ -423,6 +423,34 @@ static void vfio_group_put(struct vfio_group *group)
 	kref_put_mutex(&group->kref, vfio_group_release, &vfio.group_lock);
 }
 
+struct vfio_group_put_work {
+	struct work_struct work;
+	struct vfio_group *group;
+};
+
+static void vfio_group_put_bg(struct work_struct *work)
+{
+	struct vfio_group_put_work *do_work;
+
+	do_work = container_of(work, struct vfio_group_put_work, work);
+
+	vfio_group_put(do_work->group);
+	kfree(do_work);
+}
+
+static void vfio_group_schedule_put(struct vfio_group *group)
+{
+	struct vfio_group_put_work *do_work;
+
+	do_work = kmalloc(sizeof(*do_work), GFP_KERNEL);
+	if (WARN_ON(!do_work))
+		return;
+
+	INIT_WORK(&do_work->work, vfio_group_put_bg);
+	do_work->group = group;
+	schedule_work(&do_work->work);
+}
+
 /* Assume group_lock or group reference is held */
 static void vfio_group_get(struct vfio_group *group)
 {
@@ -762,7 +790,14 @@ static int vfio_iommu_group_notifier(struct notifier_block *nb,
 		break;
 	}
 
-	vfio_group_put(group);
+	/*
+	 * If we're the last reference to the group, the group will be
+	 * released, which includes unregistering the iommu group notifier.
+	 * We hold a read-lock on that notifier list, unregistering needs
+	 * a write-lock... deadlock.  Release our reference asynchronously
+	 * to avoid that situation.
+	 */
+	vfio_group_schedule_put(group);
 	return NOTIFY_OK;
 }
 
@@ -1140,15 +1175,11 @@ static long vfio_fops_unl_ioctl(struct file *filep,
 		ret = vfio_ioctl_set_iommu(container, arg);
 		break;
 	default:
-		down_read(&container->group_lock);
-
 		driver = container->iommu_driver;
 		data = container->iommu_data;
 
 		if (driver) /* passthrough all unrecognized ioctls */
 			ret = driver->ops->ioctl(data, cmd, arg);
-
-		up_read(&container->group_lock);
 	}
 
 	return ret;
@@ -1202,15 +1233,11 @@ static ssize_t vfio_fops_read(struct file *filep, char __user *buf,
 	struct vfio_iommu_driver *driver;
 	ssize_t ret = -EINVAL;
 
-	down_read(&container->group_lock);
-
 	driver = container->iommu_driver;
 	if (likely(driver && driver->ops->read))
 		ret = driver->ops->read(container->iommu_data,
 					buf, count, ppos);
 
-	up_read(&container->group_lock);
-
 	return ret;
 }
 
@@ -1221,15 +1248,11 @@ static ssize_t vfio_fops_write(struct file *filep, const char __user *buf,
 	struct vfio_iommu_driver *driver;
 	ssize_t ret = -EINVAL;
 
-	down_read(&container->group_lock);
-
 	driver = container->iommu_driver;
 	if (likely(driver && driver->ops->write))
 		ret = driver->ops->write(container->iommu_data,
 					 buf, count, ppos);
 
-	up_read(&container->group_lock);
-
 	return ret;
 }
 
@@ -1239,14 +1262,10 @@ static int vfio_fops_mmap(struct file *filep, struct vm_area_struct *vma)
 	struct vfio_iommu_driver *driver;
 	int ret = -EINVAL;
 
-	down_read(&container->group_lock);
-
 	driver = container->iommu_driver;
 	if (likely(driver && driver->ops->mmap))
 		ret = driver->ops->mmap(container->iommu_data, vma);
 
-	up_read(&container->group_lock);
-
 	return ret;
 }
 
@@ -1741,6 +1760,15 @@ void vfio_group_put_external_user(struct vfio_group *group)
 }
 EXPORT_SYMBOL_GPL(vfio_group_put_external_user);
 
+bool vfio_external_group_match_file(struct vfio_group *test_group,
+				    struct file *filep)
+{
+	struct vfio_group *group = filep->private_data;
+
+	return (filep->f_op == &vfio_group_fops) && (group == test_group);
+}
+EXPORT_SYMBOL_GPL(vfio_external_group_match_file);
+
 int vfio_external_user_iommu_id(struct vfio_group *group)
 {
 	return iommu_group_id(group->iommu_group);
@@ -1949,8 +1977,6 @@ int vfio_pin_pages(struct device *dev, unsigned long *user_pfn, int npage,
 		goto err_pin_pages;
 
 	container = group->container;
-	down_read(&container->group_lock);
-
 	driver = container->iommu_driver;
 	if (likely(driver && driver->ops->pin_pages))
 		ret = driver->ops->pin_pages(container->iommu_data, user_pfn,
@@ -1958,7 +1984,6 @@ int vfio_pin_pages(struct device *dev, unsigned long *user_pfn, int npage,
 	else
 		ret = -ENOTTY;
 
-	up_read(&container->group_lock);
 	vfio_group_try_dissolve_container(group);
 
 err_pin_pages:
@@ -1998,8 +2023,6 @@ int vfio_unpin_pages(struct device *dev, unsigned long *user_pfn, int npage)
 		goto err_unpin_pages;
 
 	container = group->container;
-	down_read(&container->group_lock);
-
 	driver = container->iommu_driver;
 	if (likely(driver && driver->ops->unpin_pages))
 		ret = driver->ops->unpin_pages(container->iommu_data, user_pfn,
@@ -2007,7 +2030,6 @@ int vfio_unpin_pages(struct device *dev, unsigned long *user_pfn, int npage)
 	else
 		ret = -ENOTTY;
 
-	up_read(&container->group_lock);
 	vfio_group_try_dissolve_container(group);
 
 err_unpin_pages:
@@ -2029,8 +2051,6 @@ static int vfio_register_iommu_notifier(struct vfio_group *group,
 		return -EINVAL;
 
 	container = group->container;
-	down_read(&container->group_lock);
-
 	driver = container->iommu_driver;
 	if (likely(driver && driver->ops->register_notifier))
 		ret = driver->ops->register_notifier(container->iommu_data,
@@ -2038,7 +2058,6 @@ static int vfio_register_iommu_notifier(struct vfio_group *group,
 	else
 		ret = -ENOTTY;
 
-	up_read(&container->group_lock);
 	vfio_group_try_dissolve_container(group);
 
 	return ret;
@@ -2056,8 +2075,6 @@ static int vfio_unregister_iommu_notifier(struct vfio_group *group,
 		return -EINVAL;
 
 	container = group->container;
-	down_read(&container->group_lock);
-
 	driver = container->iommu_driver;
 	if (likely(driver && driver->ops->unregister_notifier))
 		ret = driver->ops->unregister_notifier(container->iommu_data,
@@ -2065,7 +2082,6 @@ static int vfio_unregister_iommu_notifier(struct vfio_group *group,
 	else
 		ret = -ENOTTY;
 
-	up_read(&container->group_lock);
 	vfio_group_try_dissolve_container(group);
 
 	return ret;
@@ -2083,7 +2099,6 @@ static int vfio_register_group_notifier(struct vfio_group *group,
 					unsigned long *events,
 					struct notifier_block *nb)
 {
-	struct vfio_container *container;
 	int ret;
 	bool set_kvm = false;
 
@@ -2101,9 +2116,6 @@ static int vfio_register_group_notifier(struct vfio_group *group,
 	if (ret)
 		return -EINVAL;
 
-	container = group->container;
-	down_read(&container->group_lock);
-
 	ret = blocking_notifier_chain_register(&group->notifier, nb);
 
 	/*
@@ -2114,7 +2126,6 @@ static int vfio_register_group_notifier(struct vfio_group *group,
 		blocking_notifier_call_chain(&group->notifier,
 					VFIO_GROUP_NOTIFY_SET_KVM, group->kvm);
 
-	up_read(&container->group_lock);
 	vfio_group_try_dissolve_container(group);
 
 	return ret;
@@ -2123,19 +2134,14 @@ static int vfio_register_group_notifier(struct vfio_group *group,
 static int vfio_unregister_group_notifier(struct vfio_group *group,
 					 struct notifier_block *nb)
 {
-	struct vfio_container *container;
 	int ret;
 
 	ret = vfio_group_add_container_user(group);
 	if (ret)
 		return -EINVAL;
 
-	container = group->container;
-	down_read(&container->group_lock);
-
 	ret = blocking_notifier_chain_unregister(&group->notifier, nb);
 
-	up_read(&container->group_lock);
 	vfio_group_try_dissolve_container(group);
 
 	return ret;
diff --git a/drivers/vhost/net.c b/drivers/vhost/net.c
index e3d7ea1288c6..06d044862e58 100644
--- a/drivers/vhost/net.c
+++ b/drivers/vhost/net.c
@@ -897,7 +897,7 @@ static int vhost_net_open(struct inode *inode, struct file *f)
 	struct sk_buff **queue;
 	int i;
 
-	n = kvmalloc(sizeof *n, GFP_KERNEL | __GFP_REPEAT);
+	n = kvmalloc(sizeof *n, GFP_KERNEL | __GFP_RETRY_MAYFAIL);
 	if (!n)
 		return -ENOMEM;
 	vqs = kmalloc(VHOST_NET_VQ_MAX * sizeof(*vqs), GFP_KERNEL);
diff --git a/drivers/vhost/scsi.c b/drivers/vhost/scsi.c
index fd6c8b66f06f..046f6d280af5 100644
--- a/drivers/vhost/scsi.c
+++ b/drivers/vhost/scsi.c
@@ -496,14 +496,12 @@ static void vhost_scsi_evt_work(struct vhost_work *work)
 	struct vhost_scsi *vs = container_of(work, struct vhost_scsi,
 					vs_event_work);
 	struct vhost_virtqueue *vq = &vs->vqs[VHOST_SCSI_VQ_EVT].vq;
-	struct vhost_scsi_evt *evt;
+	struct vhost_scsi_evt *evt, *t;
 	struct llist_node *llnode;
 
 	mutex_lock(&vq->mutex);
 	llnode = llist_del_all(&vs->vs_event_list);
-	while (llnode) {
-		evt = llist_entry(llnode, struct vhost_scsi_evt, list);
-		llnode = llist_next(llnode);
+	llist_for_each_entry_safe(evt, t, llnode, list) {
 		vhost_scsi_do_evt_work(vs, evt);
 		vhost_scsi_free_evt(vs, evt);
 	}
@@ -529,10 +527,7 @@ static void vhost_scsi_complete_cmd_work(struct vhost_work *work)
 
 	bitmap_zero(signal, VHOST_SCSI_MAX_VQ);
 	llnode = llist_del_all(&vs->vs_completion_list);
-	while (llnode) {
-		cmd = llist_entry(llnode, struct vhost_scsi_cmd,
-				     tvc_completion_list);
-		llnode = llist_next(llnode);
+	llist_for_each_entry(cmd, llnode, tvc_completion_list) {
 		se_cmd = &cmd->tvc_se_cmd;
 
 		pr_debug("%s tv_cmd %p resid %u status %#02x\n", __func__,
@@ -1404,7 +1399,7 @@ static int vhost_scsi_open(struct inode *inode, struct file *f)
 	struct vhost_virtqueue **vqs;
 	int r = -ENOMEM, i;
 
-	vs = kzalloc(sizeof(*vs), GFP_KERNEL | __GFP_NOWARN | __GFP_REPEAT);
+	vs = kzalloc(sizeof(*vs), GFP_KERNEL | __GFP_NOWARN | __GFP_RETRY_MAYFAIL);
 	if (!vs) {
 		vs = vzalloc(sizeof(*vs));
 		if (!vs)
diff --git a/drivers/vhost/vhost.c b/drivers/vhost/vhost.c
index e4613a3c362d..9cb3f722dce1 100644
--- a/drivers/vhost/vhost.c
+++ b/drivers/vhost/vhost.c
@@ -308,7 +308,6 @@ static void vhost_vq_reset(struct vhost_dev *dev,
 	vq->avail = NULL;
 	vq->used = NULL;
 	vq->last_avail_idx = 0;
-	vq->last_used_event = 0;
 	vq->avail_idx = 0;
 	vq->last_used_idx = 0;
 	vq->signalled_used = 0;
@@ -1402,7 +1401,7 @@ long vhost_vring_ioctl(struct vhost_dev *d, int ioctl, void __user *argp)
 			r = -EINVAL;
 			break;
 		}
-		vq->last_avail_idx = vq->last_used_event = s.num;
+		vq->last_avail_idx = s.num;
 		/* Forget the cached index value. */
 		vq->avail_idx = vq->last_avail_idx;
 		break;
@@ -2241,6 +2240,10 @@ static bool vhost_notify(struct vhost_dev *dev, struct vhost_virtqueue *vq)
 	__u16 old, new;
 	__virtio16 event;
 	bool v;
+	/* Flush out used index updates. This is paired
+	 * with the barrier that the Guest executes when enabling
+	 * interrupts. */
+	smp_mb();
 
 	if (vhost_has_feature(vq, VIRTIO_F_NOTIFY_ON_EMPTY) &&
 	    unlikely(vq->avail_idx == vq->last_avail_idx))
@@ -2248,10 +2251,6 @@ static bool vhost_notify(struct vhost_dev *dev, struct vhost_virtqueue *vq)
 
 	if (!vhost_has_feature(vq, VIRTIO_RING_F_EVENT_IDX)) {
 		__virtio16 flags;
-		/* Flush out used index updates. This is paired
-		 * with the barrier that the Guest executes when enabling
-		 * interrupts. */
-		smp_mb();
 		if (vhost_get_avail(vq, flags, &vq->avail->flags)) {
 			vq_err(vq, "Failed to get flags");
 			return true;
@@ -2266,26 +2265,11 @@ static bool vhost_notify(struct vhost_dev *dev, struct vhost_virtqueue *vq)
 	if (unlikely(!v))
 		return true;
 
-	/* We're sure if the following conditions are met, there's no
-	 * need to notify guest:
-	 * 1) cached used event is ahead of new
-	 * 2) old to new updating does not cross cached used event. */
-	if (vring_need_event(vq->last_used_event, new + vq->num, new) &&
-	    !vring_need_event(vq->last_used_event, new, old))
-		return false;
-
-	/* Flush out used index updates. This is paired
-	 * with the barrier that the Guest executes when enabling
-	 * interrupts. */
-	smp_mb();
-
 	if (vhost_get_avail(vq, event, vhost_used_event(vq))) {
 		vq_err(vq, "Failed to get used event idx");
 		return true;
 	}
-	vq->last_used_event = vhost16_to_cpu(vq, event);
-
-	return vring_need_event(vq->last_used_event, new, old);
+	return vring_need_event(vhost16_to_cpu(vq, event), new, old);
 }
 
 /* This actually signals the guest, using eventfd. */
diff --git a/drivers/vhost/vhost.h b/drivers/vhost/vhost.h
index f72095868b93..bb7c29b8b9fc 100644
--- a/drivers/vhost/vhost.h
+++ b/drivers/vhost/vhost.h
@@ -115,9 +115,6 @@ struct vhost_virtqueue {
 	/* Last index we used. */
 	u16 last_used_idx;
 
-	/* Last used evet we've seen */
-	u16 last_used_event;
-
 	/* Used flags */
 	u16 used_flags;
 
diff --git a/drivers/vhost/vsock.c b/drivers/vhost/vsock.c
index 3f63e03de8e8..c9de9c41aa97 100644
--- a/drivers/vhost/vsock.c
+++ b/drivers/vhost/vsock.c
@@ -508,7 +508,7 @@ static int vhost_vsock_dev_open(struct inode *inode, struct file *file)
 	/* This struct is large and allocation could fail, fall back to vmalloc
 	 * if there is no other way.
 	 */
-	vsock = kvmalloc(sizeof(*vsock), GFP_KERNEL | __GFP_REPEAT);
+	vsock = kvmalloc(sizeof(*vsock), GFP_KERNEL | __GFP_RETRY_MAYFAIL);
 	if (!vsock)
 		return -ENOMEM;
 
diff --git a/drivers/video/console/mdacon.c b/drivers/video/console/mdacon.c
index ec192a1bf297..d0d427a2f1a3 100644
--- a/drivers/video/console/mdacon.c
+++ b/drivers/video/console/mdacon.c
@@ -48,7 +48,7 @@ static DEFINE_SPINLOCK(mda_lock);
 
 /* description of the hardware layout */
 
-static unsigned long	mda_vram_base;		/* Base of video memory */
+static u16		*mda_vram_base;		/* Base of video memory */
 static unsigned long	mda_vram_len;		/* Size of video memory */
 static unsigned int	mda_num_columns;	/* Number of text columns */
 static unsigned int	mda_num_lines;		/* Number of text lines */
@@ -205,13 +205,20 @@ static int mda_detect(void)
 
 	/* do a memory check */
 
-	p = (u16 *) mda_vram_base;
-	q = (u16 *) (mda_vram_base + 0x01000);
+	p = mda_vram_base;
+	q = mda_vram_base + 0x01000 / 2;
 
-	p_save = scr_readw(p); q_save = scr_readw(q);
+	p_save = scr_readw(p);
+	q_save = scr_readw(q);
+
+	scr_writew(0xAA55, p);
+	if (scr_readw(p) == 0xAA55)
+		count++;
+
+	scr_writew(0x55AA, p);
+	if (scr_readw(p) == 0x55AA)
+		count++;
 
-	scr_writew(0xAA55, p); if (scr_readw(p) == 0xAA55) count++;
-	scr_writew(0x55AA, p); if (scr_readw(p) == 0x55AA) count++;
 	scr_writew(p_save, p);
 
 	if (count != 2) {
@@ -220,13 +227,18 @@ static int mda_detect(void)
 
 	/* check if we have 4K or 8K */
 
-	scr_writew(0xA55A, q); scr_writew(0x0000, p);
-	if (scr_readw(q) == 0xA55A) count++;
+	scr_writew(0xA55A, q);
+	scr_writew(0x0000, p);
+	if (scr_readw(q) == 0xA55A)
+		count++;
 	
-	scr_writew(0x5AA5, q); scr_writew(0x0000, p);
-	if (scr_readw(q) == 0x5AA5) count++;
+	scr_writew(0x5AA5, q);
+	scr_writew(0x0000, p);
+	if (scr_readw(q) == 0x5AA5)
+		count++;
 
-	scr_writew(p_save, p); scr_writew(q_save, q);
+	scr_writew(p_save, p);
+	scr_writew(q_save, q);
 	
 	if (count == 4) {
 		mda_vram_len = 0x02000;
@@ -240,14 +252,12 @@ static int mda_detect(void)
 	/* Edward: These two mess `tests' mess up my cursor on bootup */
 
 	/* cursor low register */
-	if (! test_mda_b(0x66, 0x0f)) {
+	if (!test_mda_b(0x66, 0x0f))
 		return 0;
-	}
 
 	/* cursor low register */
-	if (! test_mda_b(0x99, 0x0f)) {
+	if (!test_mda_b(0x99, 0x0f))
 		return 0;
-	}
 #endif
 
 	/* See if the card is a Hercules, by checking whether the vsync
@@ -257,25 +267,25 @@ static int mda_detect(void)
 	
 	p_save = q_save = inb_p(mda_status_port) & MDA_STATUS_VSYNC;
 
-	for (count=0; count < 50000 && p_save == q_save; count++) {
+	for (count = 0; count < 50000 && p_save == q_save; count++) {
 		q_save = inb(mda_status_port) & MDA_STATUS_VSYNC;
 		udelay(2);
 	}
 
 	if (p_save != q_save) {
 		switch (inb_p(mda_status_port) & 0x70) {
-			case 0x10:
-				mda_type = TYPE_HERCPLUS;
-				mda_type_name = "HerculesPlus";
-				break;
-			case 0x50:
-				mda_type = TYPE_HERCCOLOR;
-				mda_type_name = "HerculesColor";
-				break;
-			default:
-				mda_type = TYPE_HERC;
-				mda_type_name = "Hercules";
-				break;
+		case 0x10:
+			mda_type = TYPE_HERCPLUS;
+			mda_type_name = "HerculesPlus";
+			break;
+		case 0x50:
+			mda_type = TYPE_HERCCOLOR;
+			mda_type_name = "HerculesColor";
+			break;
+		default:
+			mda_type = TYPE_HERC;
+			mda_type_name = "Hercules";
+			break;
 		}
 	}
 
@@ -313,7 +323,7 @@ static const char *mdacon_startup(void)
 	mda_num_lines   = 25;
 
 	mda_vram_len  = 0x01000;
-	mda_vram_base = VGA_MAP_MEM(0xb0000, mda_vram_len);
+	mda_vram_base = (u16 *)VGA_MAP_MEM(0xb0000, mda_vram_len);
 
 	mda_index_port  = 0x3b4;
 	mda_value_port  = 0x3b5;
@@ -410,17 +420,20 @@ static void mdacon_invert_region(struct vc_data *c, u16 *p, int count)
 	}
 }
 
-#define MDA_ADDR(x,y)  ((u16 *) mda_vram_base + (y)*mda_num_columns + (x))
+static inline u16 *mda_addr(unsigned int x, unsigned int y)
+{
+	return mda_vram_base + y * mda_num_columns + x;
+}
 
 static void mdacon_putc(struct vc_data *c, int ch, int y, int x)
 {
-	scr_writew(mda_convert_attr(ch), MDA_ADDR(x, y));
+	scr_writew(mda_convert_attr(ch), mda_addr(x, y));
 }
 
 static void mdacon_putcs(struct vc_data *c, const unsigned short *s,
 		         int count, int y, int x)
 {
-	u16 *dest = MDA_ADDR(x, y);
+	u16 *dest = mda_addr(x, y);
 
 	for (; count > 0; count--) {
 		scr_writew(mda_convert_attr(scr_readw(s++)), dest++);
@@ -430,7 +443,7 @@ static void mdacon_putcs(struct vc_data *c, const unsigned short *s,
 static void mdacon_clear(struct vc_data *c, int y, int x, 
 			  int height, int width)
 {
-	u16 *dest = MDA_ADDR(x, y);
+	u16 *dest = mda_addr(x, y);
 	u16 eattr = mda_convert_attr(c->vc_video_erase_char);
 
 	if (width <= 0 || height <= 0)
@@ -453,7 +466,7 @@ static int mdacon_blank(struct vc_data *c, int blank, int mode_switch)
 {
 	if (mda_type == TYPE_MDA) {
 		if (blank) 
-			scr_memsetw((void *)mda_vram_base, 
+			scr_memsetw(mda_vram_base,
 				mda_convert_attr(c->vc_video_erase_char),
 				c->vc_screenbuf_size);
 		/* Tell console.c that it has to restore the screen itself */
@@ -502,16 +515,16 @@ static bool mdacon_scroll(struct vc_data *c, unsigned int t, unsigned int b,
 	switch (dir) {
 
 	case SM_UP:
-		scr_memmovew(MDA_ADDR(0,t), MDA_ADDR(0,t+lines),
+		scr_memmovew(mda_addr(0, t), mda_addr(0, t + lines),
 				(b-t-lines)*mda_num_columns*2);
-		scr_memsetw(MDA_ADDR(0,b-lines), eattr,
+		scr_memsetw(mda_addr(0, b - lines), eattr,
 				lines*mda_num_columns*2);
 		break;
 
 	case SM_DOWN:
-		scr_memmovew(MDA_ADDR(0,t+lines), MDA_ADDR(0,t),
+		scr_memmovew(mda_addr(0, t + lines), mda_addr(0, t),
 				(b-t-lines)*mda_num_columns*2);
-		scr_memsetw(MDA_ADDR(0,t), eattr, lines*mda_num_columns*2);
+		scr_memsetw(mda_addr(0, t), eattr, lines*mda_num_columns*2);
 		break;
 	}
 
diff --git a/drivers/video/fbdev/aty/atyfb_base.c b/drivers/video/fbdev/aty/atyfb_base.c
index 11026e726b68..b55fdac9c9f5 100644
--- a/drivers/video/fbdev/aty/atyfb_base.c
+++ b/drivers/video/fbdev/aty/atyfb_base.c
@@ -802,7 +802,7 @@ static int aty_var_to_crtc(const struct fb_info *info,
 {
 	struct atyfb_par *par = (struct atyfb_par *) info->par;
 	u32 xres, yres, vxres, vyres, xoffset, yoffset, bpp;
-	u32 sync, vmode, vdisplay;
+	u32 sync, vmode;
 	u32 h_total, h_disp, h_sync_strt, h_sync_end, h_sync_dly, h_sync_wid, h_sync_pol;
 	u32 v_total, v_disp, v_sync_strt, v_sync_end, v_sync_wid, v_sync_pol, c_sync;
 	u32 pix_width, dp_pix_width, dp_chain_mask;
@@ -984,12 +984,6 @@ static int aty_var_to_crtc(const struct fb_info *info,
 		v_total <<= 1;
 	}
 
-	vdisplay = yres;
-#ifdef CONFIG_FB_ATY_GENERIC_LCD
-	if ((par->lcd_table != 0) && (crtc->lcd_gen_cntl & LCD_ON))
-		vdisplay  = par->lcd_height;
-#endif
-
 	v_disp--;
 	v_sync_strt--;
 	v_sync_end--;
@@ -1036,7 +1030,7 @@ static int aty_var_to_crtc(const struct fb_info *info,
 		crtc->gen_cntl |= CRTC_INTERLACE_EN;
 #ifdef CONFIG_FB_ATY_GENERIC_LCD
 	if (par->lcd_table != 0) {
-		vdisplay = yres;
+		u32 vdisplay = yres;
 		if (vmode & FB_VMODE_DOUBLE)
 			vdisplay <<= 1;
 		crtc->gen_cntl &= ~(CRTC2_EN | CRTC2_PIX_WIDTH);
diff --git a/drivers/video/fbdev/core/fbmem.c b/drivers/video/fbdev/core/fbmem.c
index 5324358f110f..7a42238db446 100644
--- a/drivers/video/fbdev/core/fbmem.c
+++ b/drivers/video/fbdev/core/fbmem.c
@@ -1483,7 +1483,7 @@ __releases(&info->lock)
 	return 0;
 }
 
-#ifdef CONFIG_FB_PROVIDE_GET_FB_UNMAPPED_AREA
+#if defined(CONFIG_FB_PROVIDE_GET_FB_UNMAPPED_AREA) && !defined(CONFIG_MMU)
 unsigned long get_fb_unmapped_area(struct file *filp,
 				   unsigned long addr, unsigned long len,
 				   unsigned long pgoff, unsigned long flags)
@@ -1510,7 +1510,8 @@ static const struct file_operations fb_fops = {
 	.open =		fb_open,
 	.release =	fb_release,
 #if defined(HAVE_ARCH_FB_UNMAPPED_AREA) || \
-    defined(CONFIG_FB_PROVIDE_GET_FB_UNMAPPED_AREA)
+	(defined(CONFIG_FB_PROVIDE_GET_FB_UNMAPPED_AREA) && \
+	 !defined(CONFIG_MMU))
 	.get_unmapped_area = get_fb_unmapped_area,
 #endif
 #ifdef CONFIG_FB_DEFERRED_IO
diff --git a/drivers/video/fbdev/efifb.c b/drivers/video/fbdev/efifb.c
index ff01bed7112f..1e784adb89b1 100644
--- a/drivers/video/fbdev/efifb.c
+++ b/drivers/video/fbdev/efifb.c
@@ -17,6 +17,7 @@
 #include <asm/efi.h>
 
 static bool request_mem_succeeded = false;
+static bool nowc = false;
 
 static struct fb_var_screeninfo efifb_defined = {
 	.activate		= FB_ACTIVATE_NOW,
@@ -99,6 +100,8 @@ static int efifb_setup(char *options)
 				screen_info.lfb_height = simple_strtoul(this_opt+7, NULL, 0);
 			else if (!strncmp(this_opt, "width:", 6))
 				screen_info.lfb_width = simple_strtoul(this_opt+6, NULL, 0);
+			else if (!strcmp(this_opt, "nowc"))
+				nowc = true;
 		}
 	}
 
@@ -255,7 +258,10 @@ static int efifb_probe(struct platform_device *dev)
 	info->apertures->ranges[0].base = efifb_fix.smem_start;
 	info->apertures->ranges[0].size = size_remap;
 
-	info->screen_base = ioremap_wc(efifb_fix.smem_start, efifb_fix.smem_len);
+	if (nowc)
+		info->screen_base = ioremap(efifb_fix.smem_start, efifb_fix.smem_len);
+	else
+		info->screen_base = ioremap_wc(efifb_fix.smem_start, efifb_fix.smem_len);
 	if (!info->screen_base) {
 		pr_err("efifb: abort, cannot ioremap video memory 0x%x @ 0x%lx\n",
 			efifb_fix.smem_len, efifb_fix.smem_start);
diff --git a/drivers/video/fbdev/fsl-diu-fb.c b/drivers/video/fbdev/fsl-diu-fb.c
index ca3d6b366471..25abbcf38913 100644
--- a/drivers/video/fbdev/fsl-diu-fb.c
+++ b/drivers/video/fbdev/fsl-diu-fb.c
@@ -388,7 +388,7 @@ struct fsl_diu_data {
 /* Determine the DMA address of a member of the fsl_diu_data structure */
 #define DMA_ADDR(p, f) ((p)->dma_addr + offsetof(struct fsl_diu_data, f))
 
-static struct mfb_info mfb_template[] = {
+static const struct mfb_info mfb_template[] = {
 	{
 		.index = PLANE0,
 		.id = "Panel0",
@@ -1868,7 +1868,7 @@ static int __init fsl_diu_setup(char *options)
 }
 #endif
 
-static struct of_device_id fsl_diu_match[] = {
+static const struct of_device_id fsl_diu_match[] = {
 #ifdef CONFIG_PPC_MPC512x
 	{
 		.compatible = "fsl,mpc5121-diu",
diff --git a/drivers/video/fbdev/imxfb.c b/drivers/video/fbdev/imxfb.c
index c166e0725be5..ba82f97fb42b 100644
--- a/drivers/video/fbdev/imxfb.c
+++ b/drivers/video/fbdev/imxfb.c
@@ -1073,20 +1073,16 @@ static int imxfb_remove(struct platform_device *pdev)
 	imxfb_disable_controller(fbi);
 
 	unregister_framebuffer(info);
-
+	fb_dealloc_cmap(&info->cmap);
 	pdata = dev_get_platdata(&pdev->dev);
 	if (pdata && pdata->exit)
 		pdata->exit(fbi->pdev);
-
-	fb_dealloc_cmap(&info->cmap);
-	kfree(info->pseudo_palette);
-	framebuffer_release(info);
-
 	dma_free_wc(&pdev->dev, fbi->map_size, info->screen_base,
 		    fbi->map_dma);
-
 	iounmap(fbi->regs);
 	release_mem_region(res->start, resource_size(res));
+	kfree(info->pseudo_palette);
+	framebuffer_release(info);
 
 	return 0;
 }
diff --git a/drivers/video/fbdev/intelfb/intelfbdrv.c b/drivers/video/fbdev/intelfb/intelfbdrv.c
index 6b444400a86c..ffc391208b27 100644
--- a/drivers/video/fbdev/intelfb/intelfbdrv.c
+++ b/drivers/video/fbdev/intelfb/intelfbdrv.c
@@ -907,7 +907,7 @@ static void intelfb_pci_unregister(struct pci_dev *pdev)
  *                       helper functions                      *
  ***************************************************************/
 
-int __inline__ intelfb_var_to_depth(const struct fb_var_screeninfo *var)
+__inline__ int intelfb_var_to_depth(const struct fb_var_screeninfo *var)
 {
 	DBG_MSG("intelfb_var_to_depth: bpp: %d, green.length is %d\n",
 		var->bits_per_pixel, var->green.length);
diff --git a/drivers/video/fbdev/matrox/matroxfb_base.c b/drivers/video/fbdev/matrox/matroxfb_base.c
index 11eb094396ae..f6a0b9af97a9 100644
--- a/drivers/video/fbdev/matrox/matroxfb_base.c
+++ b/drivers/video/fbdev/matrox/matroxfb_base.c
@@ -2001,7 +2001,7 @@ static void matroxfb_register_device(struct matrox_fb_info* minfo) {
 	for (drv = matroxfb_driver_l(matroxfb_driver_list.next);
 	     drv != matroxfb_driver_l(&matroxfb_driver_list);
 	     drv = matroxfb_driver_l(drv->node.next)) {
-		if (drv && drv->probe) {
+		if (drv->probe) {
 			void *p = drv->probe(minfo);
 			if (p) {
 				minfo->drivers_data[i] = p;
diff --git a/drivers/video/fbdev/omap/lcdc.c b/drivers/video/fbdev/omap/lcdc.c
index e3d9b9ea5498..938cba0d24ae 100644
--- a/drivers/video/fbdev/omap/lcdc.c
+++ b/drivers/video/fbdev/omap/lcdc.c
@@ -79,12 +79,12 @@ static struct omap_lcd_controller {
 	unsigned long		vram_size;
 } lcdc;
 
-static void inline enable_irqs(int mask)
+static inline void enable_irqs(int mask)
 {
 	lcdc.irq_mask |= mask;
 }
 
-static void inline disable_irqs(int mask)
+static inline void disable_irqs(int mask)
 {
 	lcdc.irq_mask &= ~mask;
 }
@@ -466,7 +466,7 @@ static void calc_ck_div(int is_tft, int pck, int *pck_div)
 	}
 }
 
-static void inline setup_regs(void)
+static inline void setup_regs(void)
 {
 	u32 l;
 	struct lcd_panel *panel = lcdc.fbdev->panel;
diff --git a/drivers/video/fbdev/omap/omapfb_main.c b/drivers/video/fbdev/omap/omapfb_main.c
index f4cbfb3b8a09..3479a47a3082 100644
--- a/drivers/video/fbdev/omap/omapfb_main.c
+++ b/drivers/video/fbdev/omap/omapfb_main.c
@@ -62,7 +62,7 @@ struct caps_table_struct {
 	const char *name;
 };
 
-static struct caps_table_struct ctrl_caps[] = {
+static const struct caps_table_struct ctrl_caps[] = {
 	{ OMAPFB_CAPS_MANUAL_UPDATE,  "manual update" },
 	{ OMAPFB_CAPS_TEARSYNC,       "tearing synchronization" },
 	{ OMAPFB_CAPS_PLANE_RELOCATE_MEM, "relocate plane memory" },
@@ -74,7 +74,7 @@ static struct caps_table_struct ctrl_caps[] = {
 	{ OMAPFB_CAPS_SET_BACKLIGHT,  "backlight setting" },
 };
 
-static struct caps_table_struct color_caps[] = {
+static const struct caps_table_struct color_caps[] = {
 	{ 1 << OMAPFB_COLOR_RGB565,	"RGB565", },
 	{ 1 << OMAPFB_COLOR_YUV422,	"YUV422", },
 	{ 1 << OMAPFB_COLOR_YUV420,	"YUV420", },
@@ -1384,7 +1384,7 @@ static struct attribute *panel_attrs[] = {
 	NULL,
 };
 
-static struct attribute_group panel_attr_grp = {
+static const struct attribute_group panel_attr_grp = {
 	.name  = "panel",
 	.attrs = panel_attrs,
 };
@@ -1406,7 +1406,7 @@ static struct attribute *ctrl_attrs[] = {
 	NULL,
 };
 
-static struct attribute_group ctrl_attr_grp = {
+static const struct attribute_group ctrl_attr_grp = {
 	.name  = "ctrl",
 	.attrs = ctrl_attrs,
 };
diff --git a/drivers/video/fbdev/omap2/omapfb/displays/panel-dsi-cm.c b/drivers/video/fbdev/omap2/omapfb/displays/panel-dsi-cm.c
index fd2b372d0264..bef431530090 100644
--- a/drivers/video/fbdev/omap2/omapfb/displays/panel-dsi-cm.c
+++ b/drivers/video/fbdev/omap2/omapfb/displays/panel-dsi-cm.c
@@ -100,7 +100,7 @@ static void hw_guard_wait(struct panel_drv_data *ddata)
 {
 	unsigned long wait = ddata->hw_guard_end - jiffies;
 
-	if ((long)wait > 0 && wait <= ddata->hw_guard_wait) {
+	if ((long)wait > 0 && time_before_eq(wait, ddata->hw_guard_wait)) {
 		set_current_state(TASK_UNINTERRUPTIBLE);
 		schedule_timeout(wait);
 	}
@@ -559,7 +559,7 @@ static struct attribute *dsicm_attrs[] = {
 	NULL,
 };
 
-static struct attribute_group dsicm_attr_group = {
+static const struct attribute_group dsicm_attr_group = {
 	.attrs = dsicm_attrs,
 };
 
diff --git a/drivers/video/fbdev/omap2/omapfb/dss/core.c b/drivers/video/fbdev/omap2/omapfb/dss/core.c
index eecf695c16f4..09e5bb013d28 100644
--- a/drivers/video/fbdev/omap2/omapfb/dss/core.c
+++ b/drivers/video/fbdev/omap2/omapfb/dss/core.c
@@ -193,7 +193,6 @@ static struct notifier_block omap_dss_pm_notif_block = {
 
 static int __init omap_dss_probe(struct platform_device *pdev)
 {
-	struct omap_dss_board_info *pdata = pdev->dev.platform_data;
 	int r;
 
 	core.pdev = pdev;
diff --git a/drivers/video/fbdev/omap2/omapfb/dss/manager-sysfs.c b/drivers/video/fbdev/omap2/omapfb/dss/manager-sysfs.c
index 9e2a67fdf4d2..44b96af4ef4e 100644
--- a/drivers/video/fbdev/omap2/omapfb/dss/manager-sysfs.c
+++ b/drivers/video/fbdev/omap2/omapfb/dss/manager-sysfs.c
@@ -182,22 +182,16 @@ static ssize_t manager_trans_key_type_show(struct omap_overlay_manager *mgr,
 static ssize_t manager_trans_key_type_store(struct omap_overlay_manager *mgr,
 					    const char *buf, size_t size)
 {
-	enum omap_dss_trans_key_type key_type;
 	struct omap_overlay_manager_info info;
 	int r;
 
-	for (key_type = OMAP_DSS_COLOR_KEY_GFX_DST;
-			key_type < ARRAY_SIZE(trans_key_type_str); key_type++) {
-		if (sysfs_streq(buf, trans_key_type_str[key_type]))
-			break;
-	}
-
-	if (key_type == ARRAY_SIZE(trans_key_type_str))
-		return -EINVAL;
+	r = sysfs_match_string(trans_key_type_str, buf);
+	if (r < 0)
+		return r;
 
 	mgr->get_manager_info(mgr, &info);
 
-	info.trans_key_type = key_type;
+	info.trans_key_type = r;
 
 	r = mgr->set_manager_info(mgr, &info);
 	if (r)
diff --git a/drivers/video/fbdev/pxafb.c b/drivers/video/fbdev/pxafb.c
index b21a89b03fb4..c3d49e13643c 100644
--- a/drivers/video/fbdev/pxafb.c
+++ b/drivers/video/fbdev/pxafb.c
@@ -1436,7 +1436,10 @@ static void pxafb_enable_controller(struct pxafb_info *fbi)
 	pr_debug("reg_lccr3 0x%08x\n", (unsigned int) fbi->reg_lccr3);
 
 	/* enable LCD controller clock */
-	clk_prepare_enable(fbi->clk);
+	if (clk_prepare_enable(fbi->clk)) {
+		pr_err("%s: Failed to prepare clock\n", __func__);
+		return;
+	}
 
 	if (fbi->lccr0 & LCCR0_LCDT)
 		return;
diff --git a/drivers/video/fbdev/sh_mobile_lcdcfb.c b/drivers/video/fbdev/sh_mobile_lcdcfb.c
index 885ee3a563aa..c3a46506e47e 100644
--- a/drivers/video/fbdev/sh_mobile_lcdcfb.c
+++ b/drivers/video/fbdev/sh_mobile_lcdcfb.c
@@ -2301,7 +2301,7 @@ static int sh_mobile_lcdc_check_fb(struct backlight_device *bdev,
 	return (info->bl_dev == bdev);
 }
 
-static struct backlight_ops sh_mobile_lcdc_bl_ops = {
+static const struct backlight_ops sh_mobile_lcdc_bl_ops = {
 	.options	= BL_CORE_SUSPENDRESUME,
 	.update_status	= sh_mobile_lcdc_update_bl,
 	.get_brightness	= sh_mobile_lcdc_get_brightness,
diff --git a/drivers/video/fbdev/uvesafb.c b/drivers/video/fbdev/uvesafb.c
index 98af9e02959b..dc0e8d90d9cc 100644
--- a/drivers/video/fbdev/uvesafb.c
+++ b/drivers/video/fbdev/uvesafb.c
@@ -5,6 +5,9 @@
  *     Loosely based upon the vesafb driver.
  *
  */
+
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
 #include <linux/init.h>
 #include <linux/module.h>
 #include <linux/moduleparam.h>
@@ -149,8 +152,8 @@ static int uvesafb_exec(struct uvesafb_ktask *task)
 	 * allowed by connector.
 	 */
 	if (sizeof(*m) + len > CONNECTOR_MAX_MSG_SIZE) {
-		printk(KERN_WARNING "uvesafb: message too long (%d), "
-			"can't execute task\n", (int)(sizeof(*m) + len));
+		pr_warn("message too long (%d), can't execute task\n",
+			(int)(sizeof(*m) + len));
 		return -E2BIG;
 	}
 
@@ -198,10 +201,8 @@ static int uvesafb_exec(struct uvesafb_ktask *task)
 		 */
 		err = uvesafb_helper_start();
 		if (err) {
-			printk(KERN_ERR "uvesafb: failed to execute %s\n",
-					v86d_path);
-			printk(KERN_ERR "uvesafb: make sure that the v86d "
-					"helper is installed and executable\n");
+			pr_err("failed to execute %s\n", v86d_path);
+			pr_err("make sure that the v86d helper is installed and executable\n");
 		} else {
 			v86d_started = 1;
 			err = cn_netlink_send(m, 0, 0, gfp_any());
@@ -375,9 +376,8 @@ static u8 *uvesafb_vbe_state_save(struct uvesafb_par *par)
 	err = uvesafb_exec(task);
 
 	if (err || (task->t.regs.eax & 0xffff) != 0x004f) {
-		printk(KERN_WARNING "uvesafb: VBE get state call "
-				"failed (eax=0x%x, err=%d)\n",
-				task->t.regs.eax, err);
+		pr_warn("VBE get state call failed (eax=0x%x, err=%d)\n",
+			task->t.regs.eax, err);
 		kfree(state);
 		state = NULL;
 	}
@@ -407,9 +407,8 @@ static void uvesafb_vbe_state_restore(struct uvesafb_par *par, u8 *state_buf)
 
 	err = uvesafb_exec(task);
 	if (err || (task->t.regs.eax & 0xffff) != 0x004f)
-		printk(KERN_WARNING "uvesafb: VBE state restore call "
-				"failed (eax=0x%x, err=%d)\n",
-				task->t.regs.eax, err);
+		pr_warn("VBE state restore call failed (eax=0x%x, err=%d)\n",
+			task->t.regs.eax, err);
 
 	uvesafb_free(task);
 }
@@ -427,24 +426,22 @@ static int uvesafb_vbe_getinfo(struct uvesafb_ktask *task,
 
 	err = uvesafb_exec(task);
 	if (err || (task->t.regs.eax & 0xffff) != 0x004f) {
-		printk(KERN_ERR "uvesafb: Getting VBE info block failed "
-				"(eax=0x%x, err=%d)\n", (u32)task->t.regs.eax,
-				err);
+		pr_err("Getting VBE info block failed (eax=0x%x, err=%d)\n",
+		       (u32)task->t.regs.eax, err);
 		return -EINVAL;
 	}
 
 	if (par->vbe_ib.vbe_version < 0x0200) {
-		printk(KERN_ERR "uvesafb: Sorry, pre-VBE 2.0 cards are "
-				"not supported.\n");
+		pr_err("Sorry, pre-VBE 2.0 cards are not supported\n");
 		return -EINVAL;
 	}
 
 	if (!par->vbe_ib.mode_list_ptr) {
-		printk(KERN_ERR "uvesafb: Missing mode list!\n");
+		pr_err("Missing mode list!\n");
 		return -EINVAL;
 	}
 
-	printk(KERN_INFO "uvesafb: ");
+	pr_info("");
 
 	/*
 	 * Convert string pointers and the mode list pointer into
@@ -452,23 +449,24 @@ static int uvesafb_vbe_getinfo(struct uvesafb_ktask *task,
 	 * video adapter and its vendor.
 	 */
 	if (par->vbe_ib.oem_vendor_name_ptr)
-		printk("%s, ",
+		pr_cont("%s, ",
 			((char *)task->buf) + par->vbe_ib.oem_vendor_name_ptr);
 
 	if (par->vbe_ib.oem_product_name_ptr)
-		printk("%s, ",
+		pr_cont("%s, ",
 			((char *)task->buf) + par->vbe_ib.oem_product_name_ptr);
 
 	if (par->vbe_ib.oem_product_rev_ptr)
-		printk("%s, ",
+		pr_cont("%s, ",
 			((char *)task->buf) + par->vbe_ib.oem_product_rev_ptr);
 
 	if (par->vbe_ib.oem_string_ptr)
-		printk("OEM: %s, ",
+		pr_cont("OEM: %s, ",
 			((char *)task->buf) + par->vbe_ib.oem_string_ptr);
 
-	printk("VBE v%d.%d\n", ((par->vbe_ib.vbe_version & 0xff00) >> 8),
-			par->vbe_ib.vbe_version & 0xff);
+	pr_cont("VBE v%d.%d\n",
+		(par->vbe_ib.vbe_version & 0xff00) >> 8,
+		par->vbe_ib.vbe_version & 0xff);
 
 	return 0;
 }
@@ -507,8 +505,7 @@ static int uvesafb_vbe_getmodes(struct uvesafb_ktask *task,
 
 		err = uvesafb_exec(task);
 		if (err || (task->t.regs.eax & 0xffff) != 0x004f) {
-			printk(KERN_WARNING "uvesafb: Getting mode info block "
-				"for mode 0x%x failed (eax=0x%x, err=%d)\n",
+			pr_warn("Getting mode info block for mode 0x%x failed (eax=0x%x, err=%d)\n",
 				*mode, (u32)task->t.regs.eax, err);
 			mode++;
 			par->vbe_modes_cnt--;
@@ -569,23 +566,20 @@ static int uvesafb_vbe_getpmi(struct uvesafb_ktask *task,
 						+ task->t.regs.edi);
 		par->pmi_start = (u8 *)par->pmi_base + par->pmi_base[1];
 		par->pmi_pal = (u8 *)par->pmi_base + par->pmi_base[2];
-		printk(KERN_INFO "uvesafb: protected mode interface info at "
-				 "%04x:%04x\n",
-				 (u16)task->t.regs.es, (u16)task->t.regs.edi);
-		printk(KERN_INFO "uvesafb: pmi: set display start = %p, "
-				 "set palette = %p\n", par->pmi_start,
-				 par->pmi_pal);
+		pr_info("protected mode interface info at %04x:%04x\n",
+			(u16)task->t.regs.es, (u16)task->t.regs.edi);
+		pr_info("pmi: set display start = %p, set palette = %p\n",
+			par->pmi_start, par->pmi_pal);
 
 		if (par->pmi_base[3]) {
-			printk(KERN_INFO "uvesafb: pmi: ports = ");
+			pr_info("pmi: ports =");
 			for (i = par->pmi_base[3]/2;
 					par->pmi_base[i] != 0xffff; i++)
-				printk("%x ", par->pmi_base[i]);
-			printk("\n");
+				pr_cont(" %x", par->pmi_base[i]);
+			pr_cont("\n");
 
 			if (par->pmi_base[i] != 0xffff) {
-				printk(KERN_INFO "uvesafb: can't handle memory"
-						 " requests, pmi disabled\n");
+				pr_info("can't handle memory requests, pmi disabled\n");
 				par->ypan = par->pmi_setpal = 0;
 			}
 		}
@@ -634,17 +628,13 @@ static int uvesafb_vbe_getedid(struct uvesafb_ktask *task, struct fb_info *info)
 		return -EINVAL;
 
 	if ((task->t.regs.ebx & 0x3) == 3) {
-		printk(KERN_INFO "uvesafb: VBIOS/hardware supports both "
-				 "DDC1 and DDC2 transfers\n");
+		pr_info("VBIOS/hardware supports both DDC1 and DDC2 transfers\n");
 	} else if ((task->t.regs.ebx & 0x3) == 2) {
-		printk(KERN_INFO "uvesafb: VBIOS/hardware supports DDC2 "
-				 "transfers\n");
+		pr_info("VBIOS/hardware supports DDC2 transfers\n");
 	} else if ((task->t.regs.ebx & 0x3) == 1) {
-		printk(KERN_INFO "uvesafb: VBIOS/hardware supports DDC1 "
-				 "transfers\n");
+		pr_info("VBIOS/hardware supports DDC1 transfers\n");
 	} else {
-		printk(KERN_INFO "uvesafb: VBIOS/hardware doesn't support "
-				 "DDC transfers\n");
+		pr_info("VBIOS/hardware doesn't support DDC transfers\n");
 		return -EINVAL;
 	}
 
@@ -718,14 +708,12 @@ static void uvesafb_vbe_getmonspecs(struct uvesafb_ktask *task,
 	}
 
 	if (info->monspecs.gtf)
-		printk(KERN_INFO
-			"uvesafb: monitor limits: vf = %d Hz, hf = %d kHz, "
-			"clk = %d MHz\n", info->monspecs.vfmax,
+		pr_info("monitor limits: vf = %d Hz, hf = %d kHz, clk = %d MHz\n",
+			info->monspecs.vfmax,
 			(int)(info->monspecs.hfmax / 1000),
 			(int)(info->monspecs.dclkmax / 1000000));
 	else
-		printk(KERN_INFO "uvesafb: no monitor limits have been set, "
-				 "default refresh rate will be used\n");
+		pr_info("no monitor limits have been set, default refresh rate will be used\n");
 
 	/* Add VBE modes to the modelist. */
 	for (i = 0; i < par->vbe_modes_cnt; i++) {
@@ -779,8 +767,7 @@ static void uvesafb_vbe_getstatesize(struct uvesafb_ktask *task,
 	err = uvesafb_exec(task);
 
 	if (err || (task->t.regs.eax & 0xffff) != 0x004f) {
-		printk(KERN_WARNING "uvesafb: VBE state buffer size "
-			"cannot be determined (eax=0x%x, err=%d)\n",
+		pr_warn("VBE state buffer size cannot be determined (eax=0x%x, err=%d)\n",
 			task->t.regs.eax, err);
 		par->vbe_state_size = 0;
 		return;
@@ -815,8 +802,7 @@ static int uvesafb_vbe_init(struct fb_info *info)
 	if (par->pmi_setpal || par->ypan) {
 		if (__supported_pte_mask & _PAGE_NX) {
 			par->pmi_setpal = par->ypan = 0;
-			printk(KERN_WARNING "uvesafb: NX protection is active, "
-					    "better not use the PMI.\n");
+			pr_warn("NX protection is active, better not use the PMI\n");
 		} else {
 			uvesafb_vbe_getpmi(task, par);
 		}
@@ -859,8 +845,7 @@ static int uvesafb_vbe_init_mode(struct fb_info *info)
 				goto gotmode;
 			}
 		}
-		printk(KERN_INFO "uvesafb: requested VBE mode 0x%x is "
-				 "unavailable\n", vbemode);
+		pr_info("requested VBE mode 0x%x is unavailable\n", vbemode);
 		vbemode = 0;
 	}
 
@@ -1181,8 +1166,8 @@ static int uvesafb_open(struct fb_info *info, int user)
 	if (!cnt && par->vbe_state_size) {
 		buf =  uvesafb_vbe_state_save(par);
 		if (IS_ERR(buf)) {
-			printk(KERN_WARNING "uvesafb: save hardware state"
-				"failed, error code is %ld!\n", PTR_ERR(buf));
+			pr_warn("save hardware state failed, error code is %ld!\n",
+				PTR_ERR(buf));
 		} else {
 			par->vbe_state_orig = buf;
 		}
@@ -1293,17 +1278,16 @@ setmode:
 		 * use our own timings.  Try again with the default timings.
 		 */
 		if (crtc != NULL) {
-			printk(KERN_WARNING "uvesafb: mode switch failed "
-				"(eax=0x%x, err=%d). Trying again with "
-				"default timings.\n", task->t.regs.eax, err);
+			pr_warn("mode switch failed (eax=0x%x, err=%d) - trying again with default timings\n",
+				task->t.regs.eax, err);
 			uvesafb_reset(task);
 			kfree(crtc);
 			crtc = NULL;
 			info->var.pixclock = 0;
 			goto setmode;
 		} else {
-			printk(KERN_ERR "uvesafb: mode switch failed (eax="
-				"0x%x, err=%d)\n", task->t.regs.eax, err);
+			pr_err("mode switch failed (eax=0x%x, err=%d)\n",
+			       task->t.regs.eax, err);
 			err = -EINVAL;
 			goto out;
 		}
@@ -1510,13 +1494,11 @@ static void uvesafb_init_info(struct fb_info *info, struct vbe_mode_ib *mode)
 				 mode->bytes_per_scan_line;
 
 	if (par->ypan && info->var.yres_virtual > info->var.yres) {
-		printk(KERN_INFO "uvesafb: scrolling: %s "
-			"using protected mode interface, "
-			"yres_virtual=%d\n",
+		pr_info("scrolling: %s using protected mode interface, yres_virtual=%d\n",
 			(par->ypan > 1) ? "ywrap" : "ypan",
 			info->var.yres_virtual);
 	} else {
-		printk(KERN_INFO "uvesafb: scrolling: redraw\n");
+		pr_info("scrolling: redraw\n");
 		info->var.yres_virtual = info->var.yres;
 		par->ypan = 0;
 	}
@@ -1704,7 +1686,7 @@ static int uvesafb_probe(struct platform_device *dev)
 
 	err = uvesafb_vbe_init(info);
 	if (err) {
-		printk(KERN_ERR "uvesafb: vbe_init() failed with %d\n", err);
+		pr_err("vbe_init() failed with %d\n", err);
 		goto out;
 	}
 
@@ -1726,15 +1708,15 @@ static int uvesafb_probe(struct platform_device *dev)
 	uvesafb_init_info(info, mode);
 
 	if (!request_region(0x3c0, 32, "uvesafb")) {
-		printk(KERN_ERR "uvesafb: request region 0x3c0-0x3e0 failed\n");
+		pr_err("request region 0x3c0-0x3e0 failed\n");
 		err = -EIO;
 		goto out_mode;
 	}
 
 	if (!request_mem_region(info->fix.smem_start, info->fix.smem_len,
 				"uvesafb")) {
-		printk(KERN_ERR "uvesafb: cannot reserve video memory at "
-				"0x%lx\n", info->fix.smem_start);
+		pr_err("cannot reserve video memory at 0x%lx\n",
+		       info->fix.smem_start);
 		err = -EIO;
 		goto out_reg;
 	}
@@ -1743,10 +1725,8 @@ static int uvesafb_probe(struct platform_device *dev)
 	uvesafb_ioremap(info);
 
 	if (!info->screen_base) {
-		printk(KERN_ERR
-			"uvesafb: abort, cannot ioremap 0x%x bytes of video "
-			"memory at 0x%lx\n",
-			info->fix.smem_len, info->fix.smem_start);
+		pr_err("abort, cannot ioremap 0x%x bytes of video memory at 0x%lx\n",
+		       info->fix.smem_len, info->fix.smem_start);
 		err = -EIO;
 		goto out_mem;
 	}
@@ -1754,16 +1734,14 @@ static int uvesafb_probe(struct platform_device *dev)
 	platform_set_drvdata(dev, info);
 
 	if (register_framebuffer(info) < 0) {
-		printk(KERN_ERR
-			"uvesafb: failed to register framebuffer device\n");
+		pr_err("failed to register framebuffer device\n");
 		err = -EINVAL;
 		goto out_unmap;
 	}
 
-	printk(KERN_INFO "uvesafb: framebuffer at 0x%lx, mapped to 0x%p, "
-			"using %dk, total %dk\n", info->fix.smem_start,
-			info->screen_base, info->fix.smem_len/1024,
-			par->vbe_ib.total_memory * 64);
+	pr_info("framebuffer at 0x%lx, mapped to 0x%p, using %dk, total %dk\n",
+		info->fix.smem_start, info->screen_base,
+		info->fix.smem_len / 1024, par->vbe_ib.total_memory * 64);
 	fb_info(info, "%s frame buffer device\n", info->fix.id);
 
 	err = sysfs_create_group(&dev->dev.kobj, &uvesafb_dev_attgrp);
@@ -1871,8 +1849,7 @@ static int uvesafb_setup(char *options)
 		else if (this_opt[0] >= '0' && this_opt[0] <= '9') {
 			mode_option = this_opt;
 		} else {
-			printk(KERN_WARNING
-				"uvesafb: unrecognized option %s\n", this_opt);
+			pr_warn("unrecognized option %s\n", this_opt);
 		}
 	}
 
@@ -1931,8 +1908,7 @@ static int uvesafb_init(void)
 		err = driver_create_file(&uvesafb_driver.driver,
 				&driver_attr_v86d);
 		if (err) {
-			printk(KERN_WARNING "uvesafb: failed to register "
-					"attributes\n");
+			pr_warn("failed to register attributes\n");
 			err = 0;
 		}
 	}
diff --git a/drivers/video/fbdev/vermilion/cr_pll.c b/drivers/video/fbdev/vermilion/cr_pll.c
index ebc6e6e0dd0f..ba105c876bed 100644
--- a/drivers/video/fbdev/vermilion/cr_pll.c
+++ b/drivers/video/fbdev/vermilion/cr_pll.c
@@ -185,6 +185,7 @@ static int __init cr_pll_init(void)
 	if (err) {
 		printk(KERN_ERR
 		       "Carillo Ranch failed to initialize vml_sys.\n");
+		iounmap(mch_regs_base);
 		pci_dev_put(mch_dev);
 		return err;
 	}
diff --git a/drivers/virtio/virtio_balloon.c b/drivers/virtio/virtio_balloon.c
index 22caf808bfab..f0b3a0b9d42f 100644
--- a/drivers/virtio/virtio_balloon.c
+++ b/drivers/virtio/virtio_balloon.c
@@ -104,12 +104,6 @@ static u32 page_to_balloon_pfn(struct page *page)
 	return pfn * VIRTIO_BALLOON_PAGES_PER_PAGE;
 }
 
-static struct page *balloon_pfn_to_page(u32 pfn)
-{
-	BUG_ON(pfn % VIRTIO_BALLOON_PAGES_PER_PAGE);
-	return pfn_to_page(pfn / VIRTIO_BALLOON_PAGES_PER_PAGE);
-}
-
 static void balloon_ack(struct virtqueue *vq)
 {
 	struct virtio_balloon *vb = vq->vdev->priv;
@@ -138,8 +132,10 @@ static void set_page_pfns(struct virtio_balloon *vb,
 {
 	unsigned int i;
 
-	/* Set balloon pfns pointing at this page.
-	 * Note that the first pfn points at start of the page. */
+	/*
+	 * Set balloon pfns pointing at this page.
+	 * Note that the first pfn points at start of the page.
+	 */
 	for (i = 0; i < VIRTIO_BALLOON_PAGES_PER_PAGE; i++)
 		pfns[i] = cpu_to_virtio32(vb->vdev,
 					  page_to_balloon_pfn(page) + i);
@@ -182,18 +178,16 @@ static unsigned fill_balloon(struct virtio_balloon *vb, size_t num)
 	return num_allocated_pages;
 }
 
-static void release_pages_balloon(struct virtio_balloon *vb)
+static void release_pages_balloon(struct virtio_balloon *vb,
+				 struct list_head *pages)
 {
-	unsigned int i;
-	struct page *page;
+	struct page *page, *next;
 
-	/* Find pfns pointing at start of each page, get pages and free them. */
-	for (i = 0; i < vb->num_pfns; i += VIRTIO_BALLOON_PAGES_PER_PAGE) {
-		page = balloon_pfn_to_page(virtio32_to_cpu(vb->vdev,
-							   vb->pfns[i]));
+	list_for_each_entry_safe(page, next, pages, lru) {
 		if (!virtio_has_feature(vb->vdev,
 					VIRTIO_BALLOON_F_DEFLATE_ON_OOM))
 			adjust_managed_page_count(page, 1);
+		list_del(&page->lru);
 		put_page(page); /* balloon reference */
 	}
 }
@@ -203,6 +197,7 @@ static unsigned leak_balloon(struct virtio_balloon *vb, size_t num)
 	unsigned num_freed_pages;
 	struct page *page;
 	struct balloon_dev_info *vb_dev_info = &vb->vb_dev_info;
+	LIST_HEAD(pages);
 
 	/* We can only do one array worth at a time. */
 	num = min(num, ARRAY_SIZE(vb->pfns));
@@ -216,6 +211,7 @@ static unsigned leak_balloon(struct virtio_balloon *vb, size_t num)
 		if (!page)
 			break;
 		set_page_pfns(vb, vb->pfns + vb->num_pfns, page);
+		list_add(&page->lru, &pages);
 		vb->num_pages -= VIRTIO_BALLOON_PAGES_PER_PAGE;
 	}
 
@@ -227,7 +223,7 @@ static unsigned leak_balloon(struct virtio_balloon *vb, size_t num)
 	 */
 	if (vb->num_pfns != 0)
 		tell_host(vb, vb->deflate_vq);
-	release_pages_balloon(vb);
+	release_pages_balloon(vb, &pages);
 	mutex_unlock(&vb->balloon_lock);
 	return num_freed_pages;
 }
diff --git a/drivers/w1/masters/omap_hdq.c b/drivers/w1/masters/omap_hdq.c
index 3612542b6044..83fc9aab34e8 100644
--- a/drivers/w1/masters/omap_hdq.c
+++ b/drivers/w1/masters/omap_hdq.c
@@ -704,7 +704,8 @@ static int omap_hdq_probe(struct platform_device *pdev)
 
 	irq = platform_get_irq(pdev, 0);
 	if (irq	< 0) {
-		ret = -ENXIO;
+		dev_dbg(&pdev->dev, "Failed to get IRQ: %d\n", irq);
+		ret = irq;
 		goto err_irq;
 	}
 
diff --git a/drivers/w1/w1.c b/drivers/w1/w1.c
index 95ea7e6b1d99..74471e7aa5cc 100644
--- a/drivers/w1/w1.c
+++ b/drivers/w1/w1.c
@@ -728,6 +728,7 @@ int w1_attach_slave_device(struct w1_master *dev, struct w1_reg_num *rn)
 	memcpy(&sl->reg_num, rn, sizeof(sl->reg_num));
 	atomic_set(&sl->refcnt, 1);
 	atomic_inc(&sl->master->refcnt);
+	dev->slave_count++;
 
 	/* slave modules need to be loaded in a context with unlocked mutex */
 	mutex_unlock(&dev->mutex);
@@ -747,11 +748,11 @@ int w1_attach_slave_device(struct w1_master *dev, struct w1_reg_num *rn)
 
 	sl->family = f;
 
-
 	err = __w1_attach_slave_device(sl);
 	if (err < 0) {
 		dev_err(&dev->dev, "%s: Attaching %s failed.\n", __func__,
 			 sl->name);
+		dev->slave_count--;
 		w1_family_put(sl->family);
 		atomic_dec(&sl->master->refcnt);
 		kfree(sl);
@@ -759,7 +760,6 @@ int w1_attach_slave_device(struct w1_master *dev, struct w1_reg_num *rn)
 	}
 
 	sl->ttl = dev->slave_ttl;
-	dev->slave_count++;
 
 	memcpy(msg.id.id, rn, sizeof(msg.id));
 	msg.type = W1_SLAVE_ADD;
diff --git a/drivers/xen/balloon.c b/drivers/xen/balloon.c
index 50dcb68d8070..ab609255a0f3 100644
--- a/drivers/xen/balloon.c
+++ b/drivers/xen/balloon.c
@@ -780,6 +780,9 @@ static int __init balloon_init(void)
 	}
 #endif
 
+	/* Init the xen-balloon driver. */
+	xen_balloon_init();
+
 	return 0;
 }
 subsys_initcall(balloon_init);
diff --git a/drivers/xen/biomerge.c b/drivers/xen/biomerge.c
index 4da69dbf7dca..1bdd02a6d6ac 100644
--- a/drivers/xen/biomerge.c
+++ b/drivers/xen/biomerge.c
@@ -10,8 +10,7 @@ bool xen_biovec_phys_mergeable(const struct bio_vec *vec1,
 	unsigned long bfn1 = pfn_to_bfn(page_to_pfn(vec1->bv_page));
 	unsigned long bfn2 = pfn_to_bfn(page_to_pfn(vec2->bv_page));
 
-	return __BIOVEC_PHYS_MERGEABLE(vec1, vec2) &&
-		((bfn1 == bfn2) || ((bfn1+1) == bfn2));
+	return bfn1 + PFN_DOWN(vec1->bv_offset + vec1->bv_len) == bfn2;
 #else
 	/*
 	 * XXX: Add support for merging bio_vec when using different page
diff --git a/drivers/xen/events/events_base.c b/drivers/xen/events/events_base.c
index b241bfa529ce..2d43118077e4 100644
--- a/drivers/xen/events/events_base.c
+++ b/drivers/xen/events/events_base.c
@@ -343,14 +343,6 @@ static void bind_evtchn_to_cpu(unsigned int chn, unsigned int cpu)
 	info->cpu = cpu;
 }
 
-static void xen_evtchn_mask_all(void)
-{
-	unsigned int evtchn;
-
-	for (evtchn = 0; evtchn < xen_evtchn_nr_channels(); evtchn++)
-		mask_evtchn(evtchn);
-}
-
 /**
  * notify_remote_via_irq - send event to remote end of event channel via irq
  * @irq: irq of event channel to send event to
@@ -582,7 +574,7 @@ static void shutdown_pirq(struct irq_data *data)
 
 static void enable_pirq(struct irq_data *data)
 {
-	startup_pirq(data);
+	enable_dynirq(data);
 }
 
 static void disable_pirq(struct irq_data *data)
@@ -1573,7 +1565,6 @@ void xen_irq_resume(void)
 	struct irq_info *info;
 
 	/* New event-channel space is not 'live' yet. */
-	xen_evtchn_mask_all();
 	xen_evtchn_resume();
 
 	/* No IRQ <-> event-channel mappings. */
@@ -1681,6 +1672,7 @@ module_param(fifo_events, bool, 0);
 void __init xen_init_IRQ(void)
 {
 	int ret = -EINVAL;
+	unsigned int evtchn;
 
 	if (fifo_events)
 		ret = xen_evtchn_fifo_init();
@@ -1692,7 +1684,8 @@ void __init xen_init_IRQ(void)
 	BUG_ON(!evtchn_to_irq);
 
 	/* No event channels are 'live' right now. */
-	xen_evtchn_mask_all();
+	for (evtchn = 0; evtchn < xen_evtchn_nr_channels(); evtchn++)
+		mask_evtchn(evtchn);
 
 	pirq_needs_eoi = pirq_needs_eoi_flag;
 
diff --git a/drivers/xen/grant-table.c b/drivers/xen/grant-table.c
index d6786b87e13b..2c6a9114d332 100644
--- a/drivers/xen/grant-table.c
+++ b/drivers/xen/grant-table.c
@@ -42,6 +42,7 @@
 #include <linux/delay.h>
 #include <linux/hardirq.h>
 #include <linux/workqueue.h>
+#include <linux/ratelimit.h>
 
 #include <xen/xen.h>
 #include <xen/interface/xen.h>
@@ -1072,8 +1073,14 @@ static int gnttab_expand(unsigned int req_entries)
 	cur = nr_grant_frames;
 	extra = ((req_entries + (grefs_per_grant_frame-1)) /
 		 grefs_per_grant_frame);
-	if (cur + extra > gnttab_max_grant_frames())
+	if (cur + extra > gnttab_max_grant_frames()) {
+		pr_warn_ratelimited("xen/grant-table: max_grant_frames reached"
+				    " cur=%u extra=%u limit=%u"
+				    " gnttab_free_count=%u req_entries=%u\n",
+				    cur, extra, gnttab_max_grant_frames(),
+				    gnttab_free_count, req_entries);
 		return -ENOSPC;
+	}
 
 	rc = gnttab_map(cur, cur + extra - 1);
 	if (rc == 0)
diff --git a/drivers/xen/xen-balloon.c b/drivers/xen/xen-balloon.c
index e7715cb62eef..e89136ab851e 100644
--- a/drivers/xen/xen-balloon.c
+++ b/drivers/xen/xen-balloon.c
@@ -59,6 +59,8 @@ static void watch_target(struct xenbus_watch *watch,
 {
 	unsigned long long new_target;
 	int err;
+	static bool watch_fired;
+	static long target_diff;
 
 	err = xenbus_scanf(XBT_NIL, "memory", "target", "%llu", &new_target);
 	if (err != 1) {
@@ -69,7 +71,14 @@ static void watch_target(struct xenbus_watch *watch,
 	/* The given memory/target value is in KiB, so it needs converting to
 	 * pages. PAGE_SHIFT converts bytes to pages, hence PAGE_SHIFT - 10.
 	 */
-	balloon_set_new_target(new_target >> (PAGE_SHIFT - 10));
+	new_target >>= PAGE_SHIFT - 10;
+	if (watch_fired) {
+		balloon_set_new_target(new_target - target_diff);
+		return;
+	}
+
+	watch_fired = true;
+	target_diff = new_target - balloon_stats.target_pages;
 }
 static struct xenbus_watch target_watch = {
 	.node = "memory/target",
@@ -94,22 +103,15 @@ static struct notifier_block xenstore_notifier = {
 	.notifier_call = balloon_init_watcher,
 };
 
-static int __init balloon_init(void)
+void xen_balloon_init(void)
 {
-	if (!xen_domain())
-		return -ENODEV;
-
-	pr_info("Initialising balloon driver\n");
-
 	register_balloon(&balloon_dev);
 
 	register_xen_selfballooning(&balloon_dev);
 
 	register_xenstore_notifier(&xenstore_notifier);
-
-	return 0;
 }
-subsys_initcall(balloon_init);
+EXPORT_SYMBOL_GPL(xen_balloon_init);
 
 #define BALLOON_SHOW(name, format, args...)				\
 	static ssize_t show_##name(struct device *dev,			\
diff --git a/drivers/xen/xen-scsiback.c b/drivers/xen/xen-scsiback.c
index d6950e0802b7..7bc88fd43cfc 100644
--- a/drivers/xen/xen-scsiback.c
+++ b/drivers/xen/xen-scsiback.c
@@ -134,11 +134,8 @@ struct vscsibk_pend {
 	struct page *pages[VSCSI_MAX_GRANTS];
 
 	struct se_cmd se_cmd;
-};
 
-struct scsiback_tmr {
-	atomic_t tmr_complete;
-	wait_queue_head_t tmr_wait;
+	struct completion tmr_done;
 };
 
 #define VSCSI_DEFAULT_SESSION_TAGS	128
@@ -599,36 +596,28 @@ static void scsiback_device_action(struct vscsibk_pend *pending_req,
 	struct scsiback_tpg *tpg = pending_req->v2p->tpg;
 	struct scsiback_nexus *nexus = tpg->tpg_nexus;
 	struct se_cmd *se_cmd = &pending_req->se_cmd;
-	struct scsiback_tmr *tmr;
 	u64 unpacked_lun = pending_req->v2p->lun;
 	int rc, err = FAILED;
 
-	tmr = kzalloc(sizeof(struct scsiback_tmr), GFP_KERNEL);
-	if (!tmr) {
-		target_put_sess_cmd(se_cmd);
-		goto err;
-	}
-
-	init_waitqueue_head(&tmr->tmr_wait);
+	init_completion(&pending_req->tmr_done);
 
 	rc = target_submit_tmr(&pending_req->se_cmd, nexus->tvn_se_sess,
 			       &pending_req->sense_buffer[0],
-			       unpacked_lun, tmr, act, GFP_KERNEL,
+			       unpacked_lun, NULL, act, GFP_KERNEL,
 			       tag, TARGET_SCF_ACK_KREF);
 	if (rc)
 		goto err;
 
-	wait_event(tmr->tmr_wait, atomic_read(&tmr->tmr_complete));
+	wait_for_completion(&pending_req->tmr_done);
 
 	err = (se_cmd->se_tmr_req->response == TMR_FUNCTION_COMPLETE) ?
 		SUCCESS : FAILED;
 
 	scsiback_do_resp_with_sense(NULL, err, 0, pending_req);
-	transport_generic_free_cmd(&pending_req->se_cmd, 1);
+	transport_generic_free_cmd(&pending_req->se_cmd, 0);
 	return;
+
 err:
-	if (tmr)
-		kfree(tmr);
 	scsiback_do_resp_with_sense(NULL, err, 0, pending_req);
 }
 
@@ -1389,12 +1378,6 @@ static int scsiback_check_stop_free(struct se_cmd *se_cmd)
 static void scsiback_release_cmd(struct se_cmd *se_cmd)
 {
 	struct se_session *se_sess = se_cmd->se_sess;
-	struct se_tmr_req *se_tmr = se_cmd->se_tmr_req;
-
-	if (se_tmr && se_cmd->se_cmd_flags & SCF_SCSI_TMR_CDB) {
-		struct scsiback_tmr *tmr = se_tmr->fabric_tmr_ptr;
-		kfree(tmr);
-	}
 
 	percpu_ida_free(&se_sess->sess_tag_pool, se_cmd->map_tag);
 }
@@ -1455,11 +1438,10 @@ static int scsiback_queue_status(struct se_cmd *se_cmd)
 
 static void scsiback_queue_tm_rsp(struct se_cmd *se_cmd)
 {
-	struct se_tmr_req *se_tmr = se_cmd->se_tmr_req;
-	struct scsiback_tmr *tmr = se_tmr->fabric_tmr_ptr;
+	struct vscsibk_pend *pending_req = container_of(se_cmd,
+				struct vscsibk_pend, se_cmd);
 
-	atomic_set(&tmr->tmr_complete, 1);
-	wake_up(&tmr->tmr_wait);
+	complete(&pending_req->tmr_done);
 }
 
 static void scsiback_aborted_task(struct se_cmd *se_cmd)
diff --git a/drivers/xen/xen-selfballoon.c b/drivers/xen/xen-selfballoon.c
index 66620713242a..a67e955cacd1 100644
--- a/drivers/xen/xen-selfballoon.c
+++ b/drivers/xen/xen-selfballoon.c
@@ -151,8 +151,8 @@ static unsigned long frontswap_inertia_counter;
 static void frontswap_selfshrink(void)
 {
 	static unsigned long cur_frontswap_pages;
-	static unsigned long last_frontswap_pages;
-	static unsigned long tgt_frontswap_pages;
+	unsigned long last_frontswap_pages;
+	unsigned long tgt_frontswap_pages;
 
 	last_frontswap_pages = cur_frontswap_pages;
 	cur_frontswap_pages = frontswap_curr_pages();
diff --git a/drivers/xen/xenbus/xenbus_xs.c b/drivers/xen/xenbus/xenbus_xs.c
index e46080214955..3e59590c7254 100644
--- a/drivers/xen/xenbus/xenbus_xs.c
+++ b/drivers/xen/xenbus/xenbus_xs.c
@@ -857,6 +857,8 @@ static int xenwatch_thread(void *unused)
 	struct list_head *ent;
 	struct xs_watch_event *event;
 
+	xenwatch_pid = current->pid;
+
 	for (;;) {
 		wait_event_interruptible(watch_events_waitq,
 					 !list_empty(&watch_events));
@@ -925,7 +927,6 @@ int xs_init(void)
 	task = kthread_run(xenwatch_thread, NULL, "xenwatch");
 	if (IS_ERR(task))
 		return PTR_ERR(task);
-	xenwatch_pid = task->pid;
 
 	/* shutdown watches for kexec boot */
 	xs_reset_watches();
diff --git a/drivers/xen/xenfs/super.c b/drivers/xen/xenfs/super.c
index 967f069385d0..71ddfb4cf61c 100644
--- a/drivers/xen/xenfs/super.c
+++ b/drivers/xen/xenfs/super.c
@@ -87,7 +87,6 @@ static int __init xenfs_init(void)
 	if (xen_domain())
 		return register_filesystem(&xenfs_type);
 
-	pr_info("not registering filesystem on non-xen platform\n");
 	return 0;
 }
 
diff --git a/fs/9p/v9fs.c b/fs/9p/v9fs.c
index c202930086ed..8fb89ddc6cc7 100644
--- a/fs/9p/v9fs.c
+++ b/fs/9p/v9fs.c
@@ -33,6 +33,7 @@
 #include <linux/parser.h>
 #include <linux/idr.h>
 #include <linux/slab.h>
+#include <linux/seq_file.h>
 #include <net/9p/9p.h>
 #include <net/9p/client.h>
 #include <net/9p/transport.h>
@@ -82,6 +83,13 @@ static const match_table_t tokens = {
 	{Opt_err, NULL}
 };
 
+static const char *const v9fs_cache_modes[nr__p9_cache_modes] = {
+	[CACHE_NONE]	= "none",
+	[CACHE_MMAP]	= "mmap",
+	[CACHE_LOOSE]	= "loose",
+	[CACHE_FSCACHE]	= "fscache",
+};
+
 /* Interpret mount options for cache mode */
 static int get_cache_mode(char *s)
 {
@@ -104,6 +112,58 @@ static int get_cache_mode(char *s)
 	return version;
 }
 
+/*
+ * Display the mount options in /proc/mounts.
+ */
+int v9fs_show_options(struct seq_file *m, struct dentry *root)
+{
+	struct v9fs_session_info *v9ses = root->d_sb->s_fs_info;
+
+	if (v9ses->debug)
+		seq_printf(m, ",debug=%x", v9ses->debug);
+	if (!uid_eq(v9ses->dfltuid, V9FS_DEFUID))
+		seq_printf(m, ",dfltuid=%u",
+			   from_kuid_munged(&init_user_ns, v9ses->dfltuid));
+	if (!gid_eq(v9ses->dfltgid, V9FS_DEFGID))
+		seq_printf(m, ",dfltgid=%u",
+			   from_kgid_munged(&init_user_ns, v9ses->dfltgid));
+	if (v9ses->afid != ~0)
+		seq_printf(m, ",afid=%u", v9ses->afid);
+	if (strcmp(v9ses->uname, V9FS_DEFUSER) != 0)
+		seq_printf(m, ",uname=%s", v9ses->uname);
+	if (strcmp(v9ses->aname, V9FS_DEFANAME) != 0)
+		seq_printf(m, ",aname=%s", v9ses->aname);
+	if (v9ses->nodev)
+		seq_puts(m, ",nodevmap");
+	if (v9ses->cache)
+		seq_printf(m, ",%s", v9fs_cache_modes[v9ses->cache]);
+#ifdef CONFIG_9P_FSCACHE
+	if (v9ses->cachetag && v9ses->cache == CACHE_FSCACHE)
+		seq_printf(m, ",cachetag=%s", v9ses->cachetag);
+#endif
+
+	switch (v9ses->flags & V9FS_ACCESS_MASK) {
+	case V9FS_ACCESS_USER:
+		seq_puts(m, ",access=user");
+		break;
+	case V9FS_ACCESS_ANY:
+		seq_puts(m, ",access=any");
+		break;
+	case V9FS_ACCESS_CLIENT:
+		seq_puts(m, ",access=client");
+		break;
+	case V9FS_ACCESS_SINGLE:
+		seq_printf(m, ",access=%u",
+			   from_kuid_munged(&init_user_ns, v9ses->uid));
+		break;
+	}
+
+	if (v9ses->flags & V9FS_POSIX_ACL)
+		seq_puts(m, ",posixacl");
+
+	return p9_show_client_options(m, v9ses->clnt);
+}
+
 /**
  * v9fs_parse_options - parse mount options into session structure
  * @v9ses: existing v9fs session information
@@ -230,6 +290,7 @@ static int v9fs_parse_options(struct v9fs_session_info *v9ses, char *opts)
 			break;
 		case Opt_cachetag:
 #ifdef CONFIG_9P_FSCACHE
+			kfree(v9ses->cachetag);
 			v9ses->cachetag = match_strdup(&args[0]);
 #endif
 			break;
diff --git a/fs/9p/v9fs.h b/fs/9p/v9fs.h
index 76eaf49abd3a..982e017acadb 100644
--- a/fs/9p/v9fs.h
+++ b/fs/9p/v9fs.h
@@ -67,6 +67,7 @@ enum p9_cache_modes {
 	CACHE_MMAP,
 	CACHE_LOOSE,
 	CACHE_FSCACHE,
+	nr__p9_cache_modes
 };
 
 /**
@@ -137,6 +138,8 @@ static inline struct v9fs_inode *V9FS_I(const struct inode *inode)
 	return container_of(inode, struct v9fs_inode, vfs_inode);
 }
 
+extern int v9fs_show_options(struct seq_file *m, struct dentry *root);
+
 struct p9_fid *v9fs_session_init(struct v9fs_session_info *, const char *,
 									char *);
 extern void v9fs_session_close(struct v9fs_session_info *v9ses);
diff --git a/fs/9p/vfs_super.c b/fs/9p/vfs_super.c
index a0965fb587a5..8b75463cb211 100644
--- a/fs/9p/vfs_super.c
+++ b/fs/9p/vfs_super.c
@@ -33,7 +33,6 @@
 #include <linux/string.h>
 #include <linux/inet.h>
 #include <linux/pagemap.h>
-#include <linux/seq_file.h>
 #include <linux/mount.h>
 #include <linux/idr.h>
 #include <linux/sched.h>
@@ -104,7 +103,6 @@ v9fs_fill_super(struct super_block *sb, struct v9fs_session_info *v9ses,
 		sb->s_flags |= MS_POSIXACL;
 #endif
 
-	save_mount_options(sb, data);
 	return 0;
 }
 
@@ -349,7 +347,7 @@ static const struct super_operations v9fs_super_ops = {
 	.destroy_inode = v9fs_destroy_inode,
 	.statfs = simple_statfs,
 	.evict_inode = v9fs_evict_inode,
-	.show_options = generic_show_options,
+	.show_options = v9fs_show_options,
 	.umount_begin = v9fs_umount_begin,
 	.write_inode = v9fs_write_inode,
 };
@@ -360,7 +358,7 @@ static const struct super_operations v9fs_super_ops_dotl = {
 	.statfs = v9fs_statfs,
 	.drop_inode = v9fs_drop_inode,
 	.evict_inode = v9fs_evict_inode,
-	.show_options = generic_show_options,
+	.show_options = v9fs_show_options,
 	.umount_begin = v9fs_umount_begin,
 	.write_inode = v9fs_write_inode_dotl,
 };
diff --git a/fs/Kconfig b/fs/Kconfig
index b0e42b6a96b9..7aee6d699fd6 100644
--- a/fs/Kconfig
+++ b/fs/Kconfig
@@ -80,7 +80,6 @@ config EXPORTFS_BLOCK_OPS
 config FILE_LOCKING
 	bool "Enable POSIX file locking API" if EXPERT
 	default y
-	select PERCPU_RWSEM
 	help
 	  This option enables standard file locking support, required
           for filesystems like NFS and for the flock() system
diff --git a/fs/affs/super.c b/fs/affs/super.c
index c2c27a8f128e..7bf47a41cb4f 100644
--- a/fs/affs/super.c
+++ b/fs/affs/super.c
@@ -20,9 +20,11 @@
 #include <linux/slab.h>
 #include <linux/writeback.h>
 #include <linux/blkdev.h>
+#include <linux/seq_file.h>
 #include "affs.h"
 
 static int affs_statfs(struct dentry *dentry, struct kstatfs *buf);
+static int affs_show_options(struct seq_file *m, struct dentry *root);
 static int affs_remount (struct super_block *sb, int *flags, char *data);
 
 static void
@@ -159,7 +161,7 @@ static const struct super_operations affs_sops = {
 	.sync_fs	= affs_sync_fs,
 	.statfs		= affs_statfs,
 	.remount_fs	= affs_remount,
-	.show_options	= generic_show_options,
+	.show_options	= affs_show_options,
 };
 
 enum {
@@ -293,6 +295,40 @@ parse_options(char *options, kuid_t *uid, kgid_t *gid, int *mode, int *reserved,
 	return 1;
 }
 
+static int affs_show_options(struct seq_file *m, struct dentry *root)
+{
+	struct super_block *sb = root->d_sb;
+	struct affs_sb_info *sbi = AFFS_SB(sb);
+
+	if (sb->s_blocksize)
+		seq_printf(m, ",bs=%lu", sb->s_blocksize);
+	if (affs_test_opt(sbi->s_flags, SF_SETMODE))
+		seq_printf(m, ",mode=%o", sbi->s_mode);
+	if (affs_test_opt(sbi->s_flags, SF_MUFS))
+		seq_puts(m, ",mufs");
+	if (affs_test_opt(sbi->s_flags, SF_NO_TRUNCATE))
+		seq_puts(m, ",nofilenametruncate");
+	if (affs_test_opt(sbi->s_flags, SF_PREFIX))
+		seq_printf(m, ",prefix=%s", sbi->s_prefix);
+	if (affs_test_opt(sbi->s_flags, SF_IMMUTABLE))
+		seq_puts(m, ",protect");
+	if (sbi->s_reserved != 2)
+		seq_printf(m, ",reserved=%u", sbi->s_reserved);
+	if (sbi->s_root_block != (sbi->s_reserved + sbi->s_partition_size - 1) / 2)
+		seq_printf(m, ",root=%u", sbi->s_root_block);
+	if (affs_test_opt(sbi->s_flags, SF_SETGID))
+		seq_printf(m, ",setgid=%u",
+			   from_kgid_munged(&init_user_ns, sbi->s_gid));
+	if (affs_test_opt(sbi->s_flags, SF_SETUID))
+		seq_printf(m, ",setuid=%u",
+			   from_kuid_munged(&init_user_ns, sbi->s_uid));
+	if (affs_test_opt(sbi->s_flags, SF_VERBOSE))
+		seq_puts(m, ",verbose");
+	if (sbi->s_volume[0])
+		seq_printf(m, ",volume=%s", sbi->s_volume);
+	return 0;
+}
+
 /* This function definitely needs to be split up. Some fine day I'll
  * hopefully have the guts to do so. Until then: sorry for the mess.
  */
@@ -316,8 +352,6 @@ static int affs_fill_super(struct super_block *sb, void *data, int silent)
 	u8			 sig[4];
 	int			 ret;
 
-	save_mount_options(sb, data);
-
 	pr_debug("read_super(%s)\n", data ? (const char *)data : "no options");
 
 	sb->s_magic             = AFFS_SUPER_MAGIC;
@@ -548,8 +582,6 @@ affs_remount(struct super_block *sb, int *flags, char *data)
 	}
 
 	flush_delayed_work(&sbi->sb_work);
-	if (new_opts)
-		replace_mount_options(sb, new_opts);
 
 	sbi->s_flags = mount_flags;
 	sbi->s_mode  = mode;
diff --git a/fs/afs/super.c b/fs/afs/super.c
index 67680c2d96cf..689173c0a682 100644
--- a/fs/afs/super.c
+++ b/fs/afs/super.c
@@ -37,6 +37,8 @@ static void afs_kill_super(struct super_block *sb);
 static struct inode *afs_alloc_inode(struct super_block *sb);
 static void afs_destroy_inode(struct inode *inode);
 static int afs_statfs(struct dentry *dentry, struct kstatfs *buf);
+static int afs_show_devname(struct seq_file *m, struct dentry *root);
+static int afs_show_options(struct seq_file *m, struct dentry *root);
 
 struct file_system_type afs_fs_type = {
 	.owner		= THIS_MODULE,
@@ -53,7 +55,8 @@ static const struct super_operations afs_super_ops = {
 	.drop_inode	= afs_drop_inode,
 	.destroy_inode	= afs_destroy_inode,
 	.evict_inode	= afs_evict_inode,
-	.show_options	= generic_show_options,
+	.show_devname	= afs_show_devname,
+	.show_options	= afs_show_options,
 };
 
 static struct kmem_cache *afs_inode_cachep;
@@ -136,6 +139,45 @@ void __exit afs_fs_exit(void)
 }
 
 /*
+ * Display the mount device name in /proc/mounts.
+ */
+static int afs_show_devname(struct seq_file *m, struct dentry *root)
+{
+	struct afs_super_info *as = root->d_sb->s_fs_info;
+	struct afs_volume *volume = as->volume;
+	struct afs_cell *cell = volume->cell;
+	const char *suf = "";
+	char pref = '%';
+
+	switch (volume->type) {
+	case AFSVL_RWVOL:
+		break;
+	case AFSVL_ROVOL:
+		pref = '#';
+		if (volume->type_force)
+			suf = ".readonly";
+		break;
+	case AFSVL_BACKVOL:
+		pref = '#';
+		suf = ".backup";
+		break;
+	}
+
+	seq_printf(m, "%c%s:%s%s", pref, cell->name, volume->vlocation->vldb.name, suf);
+	return 0;
+}
+
+/*
+ * Display the mount options in /proc/mounts.
+ */
+static int afs_show_options(struct seq_file *m, struct dentry *root)
+{
+	if (test_bit(AFS_VNODE_AUTOCELL, &AFS_FS_I(d_inode(root))->flags))
+		seq_puts(m, "autocell");
+	return 0;
+}
+
+/*
  * parse the mount options
  * - this function has been shamelessly adapted from the ext3 fs which
  *   shamelessly adapted it from the msdos fs
@@ -427,7 +469,6 @@ static struct dentry *afs_mount(struct file_system_type *fs_type,
 			deactivate_locked_super(sb);
 			goto error;
 		}
-		save_mount_options(sb, new_opts);
 		sb->s_flags |= MS_ACTIVE;
 	} else {
 		_debug("reuse");
diff --git a/fs/befs/btree.c b/fs/befs/btree.c
index d509887c580c..1b7e0f7128d6 100644
--- a/fs/befs/btree.c
+++ b/fs/befs/btree.c
@@ -120,18 +120,15 @@ static int befs_compare_strings(const void *key1, int keylen1,
 				const void *key2, int keylen2);
 
 /**
- * befs_bt_read_super - read in btree superblock convert to cpu byteorder
- * @sb: Filesystem superblock
- * @ds: Datastream to read from
- * @sup: Buffer in which to place the btree superblock
+ * befs_bt_read_super() - read in btree superblock convert to cpu byteorder
+ * @sb:        Filesystem superblock
+ * @ds:        Datastream to read from
+ * @sup:       Buffer in which to place the btree superblock
  *
  * Calls befs_read_datastream to read in the btree superblock and
  * makes sure it is in cpu byteorder, byteswapping if necessary.
- *
- * On success, returns BEFS_OK and *@sup contains the btree superblock,
- * in cpu byte order.
- *
- * On failure, BEFS_ERR is returned.
+ * Return: BEFS_OK on success and if *@sup contains the btree superblock in cpu
+ * byte order. Otherwise return BEFS_ERR on error.
  */
 static int
 befs_bt_read_super(struct super_block *sb, const befs_data_stream *ds,
diff --git a/fs/befs/linuxvfs.c b/fs/befs/linuxvfs.c
index 63e7c4760bfb..4a4a5a366158 100644
--- a/fs/befs/linuxvfs.c
+++ b/fs/befs/linuxvfs.c
@@ -20,6 +20,7 @@
 #include <linux/sched.h>
 #include <linux/cred.h>
 #include <linux/exportfs.h>
+#include <linux/seq_file.h>
 
 #include "befs.h"
 #include "btree.h"
@@ -53,6 +54,7 @@ static int befs_nls2utf(struct super_block *sb, const char *in, int in_len,
 static void befs_put_super(struct super_block *);
 static int befs_remount(struct super_block *, int *, char *);
 static int befs_statfs(struct dentry *, struct kstatfs *);
+static int befs_show_options(struct seq_file *, struct dentry *);
 static int parse_options(char *, struct befs_mount_options *);
 static struct dentry *befs_fh_to_dentry(struct super_block *sb,
 				struct fid *fid, int fh_len, int fh_type);
@@ -66,7 +68,7 @@ static const struct super_operations befs_sops = {
 	.put_super	= befs_put_super,	/* uninit super */
 	.statfs		= befs_statfs,	/* statfs */
 	.remount_fs	= befs_remount,
-	.show_options	= generic_show_options,
+	.show_options	= befs_show_options,
 };
 
 /* slab cache for befs_inode_info objects */
@@ -771,6 +773,24 @@ parse_options(char *options, struct befs_mount_options *opts)
 	return 1;
 }
 
+static int befs_show_options(struct seq_file *m, struct dentry *root)
+{
+	struct befs_sb_info *befs_sb = BEFS_SB(root->d_sb);
+	struct befs_mount_options *opts = &befs_sb->mount_opts;
+
+	if (!uid_eq(opts->uid, GLOBAL_ROOT_UID))
+		seq_printf(m, ",uid=%u",
+			   from_kuid_munged(&init_user_ns, opts->uid));
+	if (!gid_eq(opts->gid, GLOBAL_ROOT_GID))
+		seq_printf(m, ",gid=%u",
+			   from_kgid_munged(&init_user_ns, opts->gid));
+	if (opts->iocharset)
+		seq_printf(m, ",charset=%s", opts->iocharset);
+	if (opts->debug)
+		seq_puts(m, ",debug");
+	return 0;
+}
+
 /* This function has the responsibiltiy of getting the
  * filesystem ready for unmounting.
  * Basically, we free everything that we allocated in
@@ -804,8 +824,6 @@ befs_fill_super(struct super_block *sb, void *data, int silent)
 	const off_t x86_sb_off = 512;
 	int blocksize;
 
-	save_mount_options(sb, data);
-
 	sb->s_fs_info = kzalloc(sizeof(*befs_sb), GFP_KERNEL);
 	if (sb->s_fs_info == NULL)
 		goto unacquire_none;
diff --git a/fs/bfs/inode.c b/fs/bfs/inode.c
index 25e312cb6071..9a69392f1fb3 100644
--- a/fs/bfs/inode.c
+++ b/fs/bfs/inode.c
@@ -419,7 +419,7 @@ static int bfs_fill_super(struct super_block *s, void *data, int silent)
 		if (i_sblock > info->si_blocks ||
 			i_eblock > info->si_blocks ||
 			i_sblock > i_eblock ||
-			i_eoff > s_size ||
+			(i_eoff != le32_to_cpu(-1) && i_eoff > s_size) ||
 			i_sblock * BFS_BSIZE > i_eoff) {
 
 			printf("Inode 0x%08x corrupted\n", i);
diff --git a/fs/binfmt_elf.c b/fs/binfmt_elf.c
index 879ff9c7ffd0..6466153f2bf0 100644
--- a/fs/binfmt_elf.c
+++ b/fs/binfmt_elf.c
@@ -664,8 +664,7 @@ static unsigned long randomize_stack_top(unsigned long stack_top)
 {
 	unsigned long random_variable = 0;
 
-	if ((current->flags & PF_RANDOMIZE) &&
-		!(current->personality & ADDR_NO_RANDOMIZE)) {
+	if (current->flags & PF_RANDOMIZE) {
 		random_variable = get_random_long();
 		random_variable &= STACK_RND_MASK;
 		random_variable <<= PAGE_SHIFT;
diff --git a/fs/binfmt_flat.c b/fs/binfmt_flat.c
index 2edcefc0a294..a1e6860b6f46 100644
--- a/fs/binfmt_flat.c
+++ b/fs/binfmt_flat.c
@@ -422,9 +422,9 @@ static int load_flat_file(struct linux_binprm *bprm,
 {
 	struct flat_hdr *hdr;
 	unsigned long textpos, datapos, realdatastart;
-	unsigned long text_len, data_len, bss_len, stack_len, full_data, flags;
+	u32 text_len, data_len, bss_len, stack_len, full_data, flags;
 	unsigned long len, memp, memp_size, extra, rlim;
-	unsigned long __user *reloc, *rp;
+	u32 __user *reloc, *rp;
 	struct inode *inode;
 	int i, rev, relocs;
 	loff_t fpos;
@@ -574,7 +574,7 @@ static int load_flat_file(struct linux_binprm *bprm,
 				MAX_SHARED_LIBS * sizeof(unsigned long),
 				FLAT_DATA_ALIGN);
 
-		pr_debug("Allocated data+bss+stack (%ld bytes): %lx\n",
+		pr_debug("Allocated data+bss+stack (%u bytes): %lx\n",
 			 data_len + bss_len + stack_len, datapos);
 
 		fpos = ntohl(hdr->data_start);
@@ -596,13 +596,13 @@ static int load_flat_file(struct linux_binprm *bprm,
 			goto err;
 		}
 
-		reloc = (unsigned long __user *)
+		reloc = (u32 __user *)
 			(datapos + (ntohl(hdr->reloc_start) - text_len));
 		memp = realdatastart;
 		memp_size = len;
 	} else {
 
-		len = text_len + data_len + extra + MAX_SHARED_LIBS * sizeof(unsigned long);
+		len = text_len + data_len + extra + MAX_SHARED_LIBS * sizeof(u32);
 		len = PAGE_ALIGN(len);
 		textpos = vm_mmap(NULL, 0, len,
 			PROT_READ | PROT_EXEC | PROT_WRITE, MAP_PRIVATE, 0);
@@ -618,10 +618,10 @@ static int load_flat_file(struct linux_binprm *bprm,
 
 		realdatastart = textpos + ntohl(hdr->data_start);
 		datapos = ALIGN(realdatastart +
-				MAX_SHARED_LIBS * sizeof(unsigned long),
+				MAX_SHARED_LIBS * sizeof(u32),
 				FLAT_DATA_ALIGN);
 
-		reloc = (unsigned long __user *)
+		reloc = (u32 __user *)
 			(datapos + (ntohl(hdr->reloc_start) - text_len));
 		memp = textpos;
 		memp_size = len;
@@ -694,7 +694,7 @@ static int load_flat_file(struct linux_binprm *bprm,
 			ret = result;
 			pr_err("Unable to read code+data+bss, errno %d\n", ret);
 			vm_munmap(textpos, text_len + data_len + extra +
-				MAX_SHARED_LIBS * sizeof(unsigned long));
+				MAX_SHARED_LIBS * sizeof(u32));
 			goto err;
 		}
 	}
@@ -754,8 +754,8 @@ static int load_flat_file(struct linux_binprm *bprm,
 	 * image.
 	 */
 	if (flags & FLAT_FLAG_GOTPIC) {
-		for (rp = (unsigned long __user *)datapos; ; rp++) {
-			unsigned long addr, rp_val;
+		for (rp = (u32 __user *)datapos; ; rp++) {
+			u32 addr, rp_val;
 			if (get_user(rp_val, rp))
 				return -EFAULT;
 			if (rp_val == 0xffffffff)
@@ -784,9 +784,9 @@ static int load_flat_file(struct linux_binprm *bprm,
 	 * __start to address 4 so that is okay).
 	 */
 	if (rev > OLD_FLAT_VERSION) {
-		unsigned long __maybe_unused persistent = 0;
+		u32 __maybe_unused persistent = 0;
 		for (i = 0; i < relocs; i++) {
-			unsigned long addr, relval;
+			u32 addr, relval;
 
 			/*
 			 * Get the address of the pointer to be
@@ -799,15 +799,18 @@ static int load_flat_file(struct linux_binprm *bprm,
 			if (flat_set_persistent(relval, &persistent))
 				continue;
 			addr = flat_get_relocate_addr(relval);
-			rp = (unsigned long __user *)calc_reloc(addr, libinfo, id, 1);
-			if (rp == (unsigned long __user *)RELOC_FAILED) {
+			rp = (u32 __user *)calc_reloc(addr, libinfo, id, 1);
+			if (rp == (u32 __user *)RELOC_FAILED) {
 				ret = -ENOEXEC;
 				goto err;
 			}
 
 			/* Get the pointer's value.  */
-			addr = flat_get_addr_from_rp(rp, relval, flags,
-							&persistent);
+			ret = flat_get_addr_from_rp(rp, relval, flags,
+							&addr, &persistent);
+			if (unlikely(ret))
+				goto err;
+
 			if (addr != 0) {
 				/*
 				 * Do the relocation.  PIC relocs in the data section are
@@ -822,12 +825,14 @@ static int load_flat_file(struct linux_binprm *bprm,
 				}
 
 				/* Write back the relocated pointer.  */
-				flat_put_addr_at_rp(rp, addr, relval);
+				ret = flat_put_addr_at_rp(rp, addr, relval);
+				if (unlikely(ret))
+					goto err;
 			}
 		}
 	} else {
 		for (i = 0; i < relocs; i++) {
-			unsigned long relval;
+			u32 relval;
 			if (get_user(relval, reloc + i))
 				return -EFAULT;
 			relval = ntohl(relval);
diff --git a/fs/btrfs/compression.c b/fs/btrfs/compression.c
index 2c0b7b57fcd5..d2ef9ac2a630 100644
--- a/fs/btrfs/compression.c
+++ b/fs/btrfs/compression.c
@@ -152,6 +152,7 @@ csum_failed:
 		 * we have verified the checksum already, set page
 		 * checked so the end_io handlers know about it
 		 */
+		ASSERT(!bio_flagged(bio, BIO_CLONED));
 		bio_for_each_segment_all(bvec, cb->orig_bio, i)
 			SetPageChecked(bvec->bv_page);
 
diff --git a/fs/btrfs/disk-io.c b/fs/btrfs/disk-io.c
index 086dcbadce09..080e2ebb8aa0 100644
--- a/fs/btrfs/disk-io.c
+++ b/fs/btrfs/disk-io.c
@@ -964,6 +964,7 @@ static blk_status_t btree_csum_one_bio(struct bio *bio)
 	struct btrfs_root *root;
 	int i, ret = 0;
 
+	ASSERT(!bio_flagged(bio, BIO_CLONED));
 	bio_for_each_segment_all(bvec, bio, i) {
 		root = BTRFS_I(bvec->bv_page->mapping->host)->root;
 		ret = csum_dirty_buffer(root->fs_info, bvec->bv_page);
diff --git a/fs/btrfs/extent-tree.c b/fs/btrfs/extent-tree.c
index 375f8c728d91..e3b0b4196d3d 100644
--- a/fs/btrfs/extent-tree.c
+++ b/fs/btrfs/extent-tree.c
@@ -4825,10 +4825,6 @@ skip_async:
 		else
 			flush = BTRFS_RESERVE_NO_FLUSH;
 		spin_lock(&space_info->lock);
-		if (can_overcommit(fs_info, space_info, orig, flush, false)) {
-			spin_unlock(&space_info->lock);
-			break;
-		}
 		if (list_empty(&space_info->tickets) &&
 		    list_empty(&space_info->priority_tickets)) {
 			spin_unlock(&space_info->lock);
@@ -7589,6 +7585,10 @@ search:
 		u64 offset;
 		int cached;
 
+		/* If the block group is read-only, we can skip it entirely. */
+		if (unlikely(block_group->ro))
+			continue;
+
 		btrfs_grab_block_group(block_group, delalloc);
 		search_start = block_group->key.objectid;
 
@@ -7624,8 +7624,6 @@ have_block_group:
 
 		if (unlikely(block_group->cached == BTRFS_CACHE_ERROR))
 			goto loop;
-		if (unlikely(block_group->ro))
-			goto loop;
 
 		/*
 		 * Ok we want to try and use the cluster allocator, so
@@ -7839,6 +7837,7 @@ loop:
 		failed_alloc = false;
 		BUG_ON(index != get_block_group_index(block_group));
 		btrfs_release_block_group(block_group, delalloc);
+		cond_resched();
 	}
 	up_read(&space_info->groups_sem);
 
diff --git a/fs/btrfs/extent_io.c b/fs/btrfs/extent_io.c
index 556484cf5d93..0aff9b278c19 100644
--- a/fs/btrfs/extent_io.c
+++ b/fs/btrfs/extent_io.c
@@ -2258,7 +2258,7 @@ int btrfs_get_io_failure_record(struct inode *inode, u64 start, u64 end,
 	return 0;
 }
 
-int btrfs_check_repairable(struct inode *inode, struct bio *failed_bio,
+bool btrfs_check_repairable(struct inode *inode, struct bio *failed_bio,
 			   struct io_failure_record *failrec, int failed_mirror)
 {
 	struct btrfs_fs_info *fs_info = btrfs_sb(inode->i_sb);
@@ -2274,7 +2274,7 @@ int btrfs_check_repairable(struct inode *inode, struct bio *failed_bio,
 		btrfs_debug(fs_info,
 			"Check Repairable: cannot repair, num_copies=%d, next_mirror %d, failed_mirror %d",
 			num_copies, failrec->this_mirror, failed_mirror);
-		return 0;
+		return false;
 	}
 
 	/*
@@ -2315,10 +2315,10 @@ int btrfs_check_repairable(struct inode *inode, struct bio *failed_bio,
 		btrfs_debug(fs_info,
 			"Check Repairable: (fail) num_copies=%d, next_mirror %d, failed_mirror %d",
 			num_copies, failrec->this_mirror, failed_mirror);
-		return 0;
+		return false;
 	}
 
-	return 1;
+	return true;
 }
 
 
@@ -2382,8 +2382,8 @@ static int bio_readpage_error(struct bio *failed_bio, u64 phy_offset,
 	if (ret)
 		return ret;
 
-	ret = btrfs_check_repairable(inode, failed_bio, failrec, failed_mirror);
-	if (!ret) {
+	if (!btrfs_check_repairable(inode, failed_bio, failrec,
+				    failed_mirror)) {
 		free_io_failure(failure_tree, tree, failrec);
 		return -EIO;
 	}
@@ -2396,10 +2396,6 @@ static int bio_readpage_error(struct bio *failed_bio, u64 phy_offset,
 				      start - page_offset(page),
 				      (int)phy_offset, failed_bio->bi_end_io,
 				      NULL);
-	if (!bio) {
-		free_io_failure(failure_tree, tree, failrec);
-		return -EIO;
-	}
 	bio_set_op_attrs(bio, REQ_OP_READ, read_mode);
 
 	btrfs_debug(btrfs_sb(inode->i_sb),
@@ -2456,6 +2452,7 @@ static void end_bio_extent_writepage(struct bio *bio)
 	u64 end;
 	int i;
 
+	ASSERT(!bio_flagged(bio, BIO_CLONED));
 	bio_for_each_segment_all(bvec, bio, i) {
 		struct page *page = bvec->bv_page;
 		struct inode *inode = page->mapping->host;
@@ -2526,6 +2523,7 @@ static void end_bio_extent_readpage(struct bio *bio)
 	int ret;
 	int i;
 
+	ASSERT(!bio_flagged(bio, BIO_CLONED));
 	bio_for_each_segment_all(bvec, bio, i) {
 		struct page *page = bvec->bv_page;
 		struct inode *inode = page->mapping->host;
@@ -3680,6 +3678,7 @@ static void end_bio_extent_buffer_writepage(struct bio *bio)
 	struct extent_buffer *eb;
 	int i, done;
 
+	ASSERT(!bio_flagged(bio, BIO_CLONED));
 	bio_for_each_segment_all(bvec, bio, i) {
 		struct page *page = bvec->bv_page;
 
diff --git a/fs/btrfs/extent_io.h b/fs/btrfs/extent_io.h
index 3fb8513bf02e..4f030912f3ef 100644
--- a/fs/btrfs/extent_io.h
+++ b/fs/btrfs/extent_io.h
@@ -539,8 +539,8 @@ void btrfs_free_io_failure_record(struct btrfs_inode *inode, u64 start,
 		u64 end);
 int btrfs_get_io_failure_record(struct inode *inode, u64 start, u64 end,
 				struct io_failure_record **failrec_ret);
-int btrfs_check_repairable(struct inode *inode, struct bio *failed_bio,
-			   struct io_failure_record *failrec, int fail_mirror);
+bool btrfs_check_repairable(struct inode *inode, struct bio *failed_bio,
+			    struct io_failure_record *failrec, int fail_mirror);
 struct bio *btrfs_create_repair_bio(struct inode *inode, struct bio *failed_bio,
 				    struct io_failure_record *failrec,
 				    struct page *page, int pg_offset, int icsum,
diff --git a/fs/btrfs/inode.c b/fs/btrfs/inode.c
index 06dea7c89bbd..95c212037095 100644
--- a/fs/btrfs/inode.c
+++ b/fs/btrfs/inode.c
@@ -8016,10 +8016,6 @@ static int dio_read_error(struct inode *inode, struct bio *failed_bio,
 	isector >>= inode->i_sb->s_blocksize_bits;
 	bio = btrfs_create_repair_bio(inode, failed_bio, failrec, page,
 				pgoff, isector, repair_endio, repair_arg);
-	if (!bio) {
-		free_io_failure(failure_tree, io_tree, failrec);
-		return -EIO;
-	}
 	bio_set_op_attrs(bio, REQ_OP_READ, read_mode);
 
 	btrfs_debug(BTRFS_I(inode)->root->fs_info,
@@ -8059,6 +8055,7 @@ static void btrfs_retry_endio_nocsum(struct bio *bio)
 	ASSERT(bio->bi_io_vec->bv_len == btrfs_inode_sectorsize(inode));
 
 	done->uptodate = 1;
+	ASSERT(!bio_flagged(bio, BIO_CLONED));
 	bio_for_each_segment_all(bvec, bio, i)
 		clean_io_failure(BTRFS_I(inode)->root->fs_info, failure_tree,
 				 io_tree, done->start, bvec->bv_page,
@@ -8150,6 +8147,7 @@ static void btrfs_retry_endio(struct bio *bio)
 	io_tree = &BTRFS_I(inode)->io_tree;
 	failure_tree = &BTRFS_I(inode)->io_failure_tree;
 
+	ASSERT(!bio_flagged(bio, BIO_CLONED));
 	bio_for_each_segment_all(bvec, bio, i) {
 		ret = __readpage_endio_check(inode, io_bio, i, bvec->bv_page,
 					     bvec->bv_offset, done->start,
diff --git a/fs/btrfs/raid56.c b/fs/btrfs/raid56.c
index 6f845d219cd6..208638384cd2 100644
--- a/fs/btrfs/raid56.c
+++ b/fs/btrfs/raid56.c
@@ -1136,20 +1136,27 @@ static void validate_rbio_for_rmw(struct btrfs_raid_bio *rbio)
 static void index_rbio_pages(struct btrfs_raid_bio *rbio)
 {
 	struct bio *bio;
-	struct bio_vec *bvec;
 	u64 start;
 	unsigned long stripe_offset;
 	unsigned long page_index;
-	int i;
 
 	spin_lock_irq(&rbio->bio_list_lock);
 	bio_list_for_each(bio, &rbio->bio_list) {
+		struct bio_vec bvec;
+		struct bvec_iter iter;
+		int i = 0;
+
 		start = (u64)bio->bi_iter.bi_sector << 9;
 		stripe_offset = start - rbio->bbio->raid_map[0];
 		page_index = stripe_offset >> PAGE_SHIFT;
 
-		bio_for_each_segment_all(bvec, bio, i)
-			rbio->bio_pages[page_index + i] = bvec->bv_page;
+		if (bio_flagged(bio, BIO_CLONED))
+			bio->bi_iter = btrfs_io_bio(bio)->iter;
+
+		bio_for_each_segment(bvec, bio, iter) {
+			rbio->bio_pages[page_index + i] = bvec.bv_page;
+			i++;
+		}
 	}
 	spin_unlock_irq(&rbio->bio_list_lock);
 }
@@ -1423,11 +1430,14 @@ static int fail_bio_stripe(struct btrfs_raid_bio *rbio,
  */
 static void set_bio_pages_uptodate(struct bio *bio)
 {
-	struct bio_vec *bvec;
-	int i;
+	struct bio_vec bvec;
+	struct bvec_iter iter;
+
+	if (bio_flagged(bio, BIO_CLONED))
+		bio->bi_iter = btrfs_io_bio(bio)->iter;
 
-	bio_for_each_segment_all(bvec, bio, i)
-		SetPageUptodate(bvec->bv_page);
+	bio_for_each_segment(bvec, bio, iter)
+		SetPageUptodate(bvec.bv_page);
 }
 
 /*
diff --git a/fs/btrfs/send.c b/fs/btrfs/send.c
index e937c10b8287..b082210df9c8 100644
--- a/fs/btrfs/send.c
+++ b/fs/btrfs/send.c
@@ -1856,7 +1856,7 @@ out:
  */
 static int will_overwrite_ref(struct send_ctx *sctx, u64 dir, u64 dir_gen,
 			      const char *name, int name_len,
-			      u64 *who_ino, u64 *who_gen)
+			      u64 *who_ino, u64 *who_gen, u64 *who_mode)
 {
 	int ret = 0;
 	u64 gen;
@@ -1905,7 +1905,7 @@ static int will_overwrite_ref(struct send_ctx *sctx, u64 dir, u64 dir_gen,
 	if (other_inode > sctx->send_progress ||
 	    is_waiting_for_move(sctx, other_inode)) {
 		ret = get_inode_info(sctx->parent_root, other_inode, NULL,
-				who_gen, NULL, NULL, NULL, NULL);
+				who_gen, who_mode, NULL, NULL, NULL);
 		if (ret < 0)
 			goto out;
 
@@ -3683,6 +3683,36 @@ out:
 	return ret;
 }
 
+static int update_ref_path(struct send_ctx *sctx, struct recorded_ref *ref)
+{
+	int ret;
+	struct fs_path *new_path;
+
+	/*
+	 * Our reference's name member points to its full_path member string, so
+	 * we use here a new path.
+	 */
+	new_path = fs_path_alloc();
+	if (!new_path)
+		return -ENOMEM;
+
+	ret = get_cur_path(sctx, ref->dir, ref->dir_gen, new_path);
+	if (ret < 0) {
+		fs_path_free(new_path);
+		return ret;
+	}
+	ret = fs_path_add(new_path, ref->name, ref->name_len);
+	if (ret < 0) {
+		fs_path_free(new_path);
+		return ret;
+	}
+
+	fs_path_free(ref->full_path);
+	set_ref_path(ref, new_path);
+
+	return 0;
+}
+
 /*
  * This does all the move/link/unlink/rmdir magic.
  */
@@ -3696,10 +3726,12 @@ static int process_recorded_refs(struct send_ctx *sctx, int *pending_move)
 	struct fs_path *valid_path = NULL;
 	u64 ow_inode = 0;
 	u64 ow_gen;
+	u64 ow_mode;
 	int did_overwrite = 0;
 	int is_orphan = 0;
 	u64 last_dir_ino_rm = 0;
 	bool can_rename = true;
+	bool orphanized_dir = false;
 	bool orphanized_ancestor = false;
 
 	btrfs_debug(fs_info, "process_recorded_refs %llu", sctx->cur_ino);
@@ -3798,7 +3830,7 @@ static int process_recorded_refs(struct send_ctx *sctx, int *pending_move)
 		 */
 		ret = will_overwrite_ref(sctx, cur->dir, cur->dir_gen,
 				cur->name, cur->name_len,
-				&ow_inode, &ow_gen);
+				&ow_inode, &ow_gen, &ow_mode);
 		if (ret < 0)
 			goto out;
 		if (ret) {
@@ -3815,6 +3847,8 @@ static int process_recorded_refs(struct send_ctx *sctx, int *pending_move)
 						cur->full_path);
 				if (ret < 0)
 					goto out;
+				if (S_ISDIR(ow_mode))
+					orphanized_dir = true;
 
 				/*
 				 * If ow_inode has its rename operation delayed
@@ -3920,6 +3954,18 @@ static int process_recorded_refs(struct send_ctx *sctx, int *pending_move)
 				if (ret < 0)
 					goto out;
 			} else {
+				/*
+				 * We might have previously orphanized an inode
+				 * which is an ancestor of our current inode,
+				 * so our reference's full path, which was
+				 * computed before any such orphanizations, must
+				 * be updated.
+				 */
+				if (orphanized_dir) {
+					ret = update_ref_path(sctx, cur);
+					if (ret < 0)
+						goto out;
+				}
 				ret = send_link(sctx, cur->full_path,
 						valid_path);
 				if (ret < 0)
@@ -3990,34 +4036,9 @@ static int process_recorded_refs(struct send_ctx *sctx, int *pending_move)
 				 * ancestor inode.
 				 */
 				if (orphanized_ancestor) {
-					struct fs_path *new_path;
-
-					/*
-					 * Our reference's name member points to
-					 * its full_path member string, so we
-					 * use here a new path.
-					 */
-					new_path = fs_path_alloc();
-					if (!new_path) {
-						ret = -ENOMEM;
-						goto out;
-					}
-					ret = get_cur_path(sctx, cur->dir,
-							   cur->dir_gen,
-							   new_path);
-					if (ret < 0) {
-						fs_path_free(new_path);
-						goto out;
-					}
-					ret = fs_path_add(new_path,
-							  cur->name,
-							  cur->name_len);
-					if (ret < 0) {
-						fs_path_free(new_path);
+					ret = update_ref_path(sctx, cur);
+					if (ret < 0)
 						goto out;
-					}
-					fs_path_free(cur->full_path);
-					set_ref_path(cur, new_path);
 				}
 				ret = send_unlink(sctx, cur->full_path);
 				if (ret < 0)
@@ -5249,15 +5270,12 @@ static int is_extent_unchanged(struct send_ctx *sctx,
 			goto out;
 		}
 
-		right_disknr = btrfs_file_extent_disk_bytenr(eb, ei);
 		if (right_type == BTRFS_FILE_EXTENT_INLINE) {
 			right_len = btrfs_file_extent_inline_len(eb, slot, ei);
 			right_len = PAGE_ALIGN(right_len);
 		} else {
 			right_len = btrfs_file_extent_num_bytes(eb, ei);
 		}
-		right_offset = btrfs_file_extent_offset(eb, ei);
-		right_gen = btrfs_file_extent_generation(eb, ei);
 
 		/*
 		 * Are we at extent 8? If yes, we know the extent is changed.
@@ -5282,6 +5300,10 @@ static int is_extent_unchanged(struct send_ctx *sctx,
 			goto out;
 		}
 
+		right_disknr = btrfs_file_extent_disk_bytenr(eb, ei);
+		right_offset = btrfs_file_extent_offset(eb, ei);
+		right_gen = btrfs_file_extent_generation(eb, ei);
+
 		left_offset_fixed = left_offset;
 		if (key.offset < ekey->offset) {
 			/* Fix the right offset for 2a and 7. */
diff --git a/fs/btrfs/super.c b/fs/btrfs/super.c
index 74e47794e63f..12540b6104b5 100644
--- a/fs/btrfs/super.c
+++ b/fs/btrfs/super.c
@@ -1154,7 +1154,6 @@ static int btrfs_fill_super(struct super_block *sb,
 		goto fail_close;
 	}
 
-	save_mount_options(sb, data);
 	cleancache_init_fs(sb);
 	sb->s_flags |= MS_ACTIVE;
 	return 0;
diff --git a/fs/btrfs/tree-log.c b/fs/btrfs/tree-log.c
index f20ef211a73d..3a11ae63676e 100644
--- a/fs/btrfs/tree-log.c
+++ b/fs/btrfs/tree-log.c
@@ -2153,8 +2153,7 @@ process_leaf:
 			u32 this_len = sizeof(*di) + name_len + data_len;
 			char *name;
 
-			ret = verify_dir_item(fs_info, path->nodes[0],
-					      path->slots[0], di);
+			ret = verify_dir_item(fs_info, path->nodes[0], i, di);
 			if (ret) {
 				ret = -EIO;
 				goto out;
diff --git a/fs/btrfs/volumes.c b/fs/btrfs/volumes.c
index 5eb7217738ed..e8b9a269fdde 100644
--- a/fs/btrfs/volumes.c
+++ b/fs/btrfs/volumes.c
@@ -2702,7 +2702,7 @@ int btrfs_grow_device(struct btrfs_trans_handle *trans,
 
 	mutex_lock(&fs_info->chunk_mutex);
 	old_total = btrfs_super_total_bytes(super_copy);
-	diff = new_size - device->total_bytes;
+	diff = round_down(new_size - device->total_bytes, fs_info->sectorsize);
 
 	if (new_size <= device->total_bytes ||
 	    device->is_tgtdev_for_dev_replace) {
@@ -4406,7 +4406,7 @@ int btrfs_shrink_device(struct btrfs_device *device, u64 new_size)
 	u64 diff;
 
 	new_size = round_down(new_size, fs_info->sectorsize);
-	diff = old_size - new_size;
+	diff = round_down(old_size - new_size, fs_info->sectorsize);
 
 	if (device->is_tgtdev_for_dev_replace)
 		return -EINVAL;
diff --git a/fs/ceph/dir.c b/fs/ceph/dir.c
index e071d23f6148..ef7240ace576 100644
--- a/fs/ceph/dir.c
+++ b/fs/ceph/dir.c
@@ -271,6 +271,11 @@ out:
 		if (ret < 0)
 			err = ret;
 		dput(last);
+		/* last_name no longer match cache index */
+		if (fi->readdir_cache_idx >= 0) {
+			fi->readdir_cache_idx = -1;
+			fi->dir_release_count = 0;
+		}
 	}
 	return err;
 }
diff --git a/fs/cifs/cifsfs.c b/fs/cifs/cifsfs.c
index 556f480c6936..180b3356ff86 100644
--- a/fs/cifs/cifsfs.c
+++ b/fs/cifs/cifsfs.c
@@ -1354,7 +1354,7 @@ init_cifs(void)
 	spin_lock_init(&cifs_tcp_ses_lock);
 	spin_lock_init(&GlobalMid_Lock);
 
-	get_random_bytes(&cifs_lock_secret, sizeof(cifs_lock_secret));
+	cifs_lock_secret = get_random_u32();
 
 	if (cifs_max_pending < 2) {
 		cifs_max_pending = 2;
diff --git a/fs/dcache.c b/fs/dcache.c
index 6c30be668487..f90141387f01 100644
--- a/fs/dcache.c
+++ b/fs/dcache.c
@@ -90,6 +90,11 @@ EXPORT_SYMBOL(rename_lock);
 
 static struct kmem_cache *dentry_cache __read_mostly;
 
+const struct qstr empty_name = QSTR_INIT("", 0);
+EXPORT_SYMBOL(empty_name);
+const struct qstr slash_name = QSTR_INIT("/", 1);
+EXPORT_SYMBOL(slash_name);
+
 /*
  * This is the single most critical data structure when it comes
  * to the dcache: the hashtable for lookups. Somebody should try
@@ -1606,8 +1611,7 @@ struct dentry *__d_alloc(struct super_block *sb, const struct qstr *name)
 	 */
 	dentry->d_iname[DNAME_INLINE_LEN-1] = 0;
 	if (unlikely(!name)) {
-		static const struct qstr anon = QSTR_INIT("/", 1);
-		name = &anon;
+		name = &slash_name;
 		dname = dentry->d_iname;
 	} else if (name->len > DNAME_INLINE_LEN-1) {
 		size_t size = offsetof(struct external_name, name[1]);
diff --git a/fs/debugfs/inode.c b/fs/debugfs/inode.c
index a0e4e2f7e0be..c59f015f386e 100644
--- a/fs/debugfs/inode.c
+++ b/fs/debugfs/inode.c
@@ -203,8 +203,6 @@ static int debug_fill_super(struct super_block *sb, void *data, int silent)
 	struct debugfs_fs_info *fsi;
 	int err;
 
-	save_mount_options(sb, data);
-
 	fsi = kzalloc(sizeof(struct debugfs_fs_info), GFP_KERNEL);
 	sb->s_fs_info = fsi;
 	if (!fsi) {
diff --git a/fs/devpts/inode.c b/fs/devpts/inode.c
index 108df2e3602c..44dfbca9306f 100644
--- a/fs/devpts/inode.c
+++ b/fs/devpts/inode.c
@@ -133,7 +133,7 @@ static inline struct pts_fs_info *DEVPTS_SB(struct super_block *sb)
 	return sb->s_fs_info;
 }
 
-struct pts_fs_info *devpts_acquire(struct file *filp)
+struct pts_fs_info *devpts_acquire(struct file *filp, struct vfsmount **ptsmnt)
 {
 	struct pts_fs_info *result;
 	struct path path;
@@ -142,6 +142,7 @@ struct pts_fs_info *devpts_acquire(struct file *filp)
 
 	path = filp->f_path;
 	path_get(&path);
+	*ptsmnt = NULL;
 
 	/* Has the devpts filesystem already been found? */
 	sb = path.mnt->mnt_sb;
@@ -165,6 +166,7 @@ struct pts_fs_info *devpts_acquire(struct file *filp)
 	 * pty code needs to hold extra references in case of last /dev/tty close
 	 */
 	atomic_inc(&sb->s_active);
+	*ptsmnt = mntget(path.mnt);
 	result = DEVPTS_SB(sb);
 
 out:
diff --git a/fs/efivarfs/super.c b/fs/efivarfs/super.c
index d7a7c53803c1..5b68e4294faa 100644
--- a/fs/efivarfs/super.c
+++ b/fs/efivarfs/super.c
@@ -29,7 +29,6 @@ static const struct super_operations efivarfs_ops = {
 	.statfs = simple_statfs,
 	.drop_inode = generic_delete_inode,
 	.evict_inode = efivarfs_evict_inode,
-	.show_options = generic_show_options,
 };
 
 static struct super_block *efivarfs_sb;
diff --git a/fs/eventpoll.c b/fs/eventpoll.c
index a6d194831ed8..e767e4389cb1 100644
--- a/fs/eventpoll.c
+++ b/fs/eventpoll.c
@@ -960,10 +960,14 @@ static void ep_show_fdinfo(struct seq_file *m, struct file *f)
 	mutex_lock(&ep->mtx);
 	for (rbp = rb_first(&ep->rbr); rbp; rbp = rb_next(rbp)) {
 		struct epitem *epi = rb_entry(rbp, struct epitem, rbn);
+		struct inode *inode = file_inode(epi->ffd.file);
 
-		seq_printf(m, "tfd: %8d events: %8x data: %16llx\n",
+		seq_printf(m, "tfd: %8d events: %8x data: %16llx "
+			   " pos:%lli ino:%lx sdev:%x\n",
 			   epi->ffd.fd, epi->event.events,
-			   (long long)epi->event.data);
+			   (long long)epi->event.data,
+			   (long long)epi->ffd.file->f_pos,
+			   inode->i_ino, inode->i_sb->s_dev);
 		if (seq_has_overflowed(m))
 			break;
 	}
@@ -1073,6 +1077,50 @@ static struct epitem *ep_find(struct eventpoll *ep, struct file *file, int fd)
 	return epir;
 }
 
+#ifdef CONFIG_CHECKPOINT_RESTORE
+static struct epitem *ep_find_tfd(struct eventpoll *ep, int tfd, unsigned long toff)
+{
+	struct rb_node *rbp;
+	struct epitem *epi;
+
+	for (rbp = rb_first(&ep->rbr); rbp; rbp = rb_next(rbp)) {
+		epi = rb_entry(rbp, struct epitem, rbn);
+		if (epi->ffd.fd == tfd) {
+			if (toff == 0)
+				return epi;
+			else
+				toff--;
+		}
+		cond_resched();
+	}
+
+	return NULL;
+}
+
+struct file *get_epoll_tfile_raw_ptr(struct file *file, int tfd,
+				     unsigned long toff)
+{
+	struct file *file_raw;
+	struct eventpoll *ep;
+	struct epitem *epi;
+
+	if (!is_file_epoll(file))
+		return ERR_PTR(-EINVAL);
+
+	ep = file->private_data;
+
+	mutex_lock(&ep->mtx);
+	epi = ep_find_tfd(ep, tfd, toff);
+	if (epi)
+		file_raw = epi->ffd.file;
+	else
+		file_raw = ERR_PTR(-ENOENT);
+	mutex_unlock(&ep->mtx);
+
+	return file_raw;
+}
+#endif /* CONFIG_CHECKPOINT_RESTORE */
+
 /*
  * This is the callback that is passed to the wait queue wakeup
  * mechanism. It is called by the stored file descriptors when they
diff --git a/fs/ext2/acl.c b/fs/ext2/acl.c
index 79dafa71effd..51f0aea70cb4 100644
--- a/fs/ext2/acl.c
+++ b/fs/ext2/acl.c
@@ -175,11 +175,8 @@ ext2_get_acl(struct inode *inode, int type)
 	return acl;
 }
 
-/*
- * inode->i_mutex: down
- */
-int
-ext2_set_acl(struct inode *inode, struct posix_acl *acl, int type)
+static int
+__ext2_set_acl(struct inode *inode, struct posix_acl *acl, int type)
 {
 	int name_index;
 	void *value = NULL;
@@ -189,13 +186,6 @@ ext2_set_acl(struct inode *inode, struct posix_acl *acl, int type)
 	switch(type) {
 		case ACL_TYPE_ACCESS:
 			name_index = EXT2_XATTR_INDEX_POSIX_ACL_ACCESS;
-			if (acl) {
-				error = posix_acl_update_mode(inode, &inode->i_mode, &acl);
-				if (error)
-					return error;
-				inode->i_ctime = current_time(inode);
-				mark_inode_dirty(inode);
-			}
 			break;
 
 		case ACL_TYPE_DEFAULT:
@@ -222,6 +212,31 @@ ext2_set_acl(struct inode *inode, struct posix_acl *acl, int type)
 }
 
 /*
+ * inode->i_mutex: down
+ */
+int
+ext2_set_acl(struct inode *inode, struct posix_acl *acl, int type)
+{
+	int error;
+	int update_mode = 0;
+	umode_t mode = inode->i_mode;
+
+	if (type == ACL_TYPE_ACCESS && acl) {
+		error = posix_acl_update_mode(inode, &mode, &acl);
+		if (error)
+			return error;
+		update_mode = 1;
+	}
+	error = __ext2_set_acl(inode, acl, type);
+	if (!error && update_mode) {
+		inode->i_mode = mode;
+		inode->i_ctime = current_time(inode);
+		mark_inode_dirty(inode);
+	}
+	return error;
+}
+
+/*
  * Initialize the ACLs of a new inode. Called from ext2_new_inode.
  *
  * dir->i_mutex: down
@@ -238,12 +253,12 @@ ext2_init_acl(struct inode *inode, struct inode *dir)
 		return error;
 
 	if (default_acl) {
-		error = ext2_set_acl(inode, default_acl, ACL_TYPE_DEFAULT);
+		error = __ext2_set_acl(inode, default_acl, ACL_TYPE_DEFAULT);
 		posix_acl_release(default_acl);
 	}
 	if (acl) {
 		if (!error)
-			error = ext2_set_acl(inode, acl, ACL_TYPE_ACCESS);
+			error = __ext2_set_acl(inode, acl, ACL_TYPE_ACCESS);
 		posix_acl_release(acl);
 	}
 	return error;
diff --git a/fs/ext2/inode.c b/fs/ext2/inode.c
index 2dcbd5698884..30163d007b2f 100644
--- a/fs/ext2/inode.c
+++ b/fs/ext2/inode.c
@@ -659,6 +659,7 @@ static int ext2_get_blocks(struct inode *inode,
 				 */
 				err = -EAGAIN;
 				count = 0;
+				partial = chain + depth - 1;
 				break;
 			}
 			blk = le32_to_cpu(*(chain[depth-1].p + count));
diff --git a/fs/ext4/acl.c b/fs/ext4/acl.c
index 09441ae07a5b..46ff2229ff5e 100644
--- a/fs/ext4/acl.c
+++ b/fs/ext4/acl.c
@@ -193,13 +193,6 @@ __ext4_set_acl(handle_t *handle, struct inode *inode, int type,
 	switch (type) {
 	case ACL_TYPE_ACCESS:
 		name_index = EXT4_XATTR_INDEX_POSIX_ACL_ACCESS;
-		if (acl) {
-			error = posix_acl_update_mode(inode, &inode->i_mode, &acl);
-			if (error)
-				return error;
-			inode->i_ctime = current_time(inode);
-			ext4_mark_inode_dirty(handle, inode);
-		}
 		break;
 
 	case ACL_TYPE_DEFAULT:
@@ -221,8 +214,9 @@ __ext4_set_acl(handle_t *handle, struct inode *inode, int type,
 				      value, size, xattr_flags);
 
 	kfree(value);
-	if (!error)
+	if (!error) {
 		set_cached_acl(inode, type, acl);
+	}
 
 	return error;
 }
@@ -233,6 +227,8 @@ ext4_set_acl(struct inode *inode, struct posix_acl *acl, int type)
 	handle_t *handle;
 	int error, credits, retries = 0;
 	size_t acl_size = acl ? ext4_acl_size(acl->a_count) : 0;
+	umode_t mode = inode->i_mode;
+	int update_mode = 0;
 
 	error = dquot_initialize(inode);
 	if (error)
@@ -247,7 +243,20 @@ retry:
 	if (IS_ERR(handle))
 		return PTR_ERR(handle);
 
+	if ((type == ACL_TYPE_ACCESS) && acl) {
+		error = posix_acl_update_mode(inode, &mode, &acl);
+		if (error)
+			goto out_stop;
+		update_mode = 1;
+	}
+
 	error = __ext4_set_acl(handle, inode, type, acl, 0 /* xattr_flags */);
+	if (!error && update_mode) {
+		inode->i_mode = mode;
+		inode->i_ctime = current_time(inode);
+		ext4_mark_inode_dirty(handle, inode);
+	}
+out_stop:
 	ext4_journal_stop(handle);
 	if (error == -ENOSPC && ext4_should_retry_alloc(inode->i_sb, &retries))
 		goto retry;
diff --git a/fs/ext4/ext4.h b/fs/ext4/ext4.h
index 9ebde0cd632e..a2bb7d2870e4 100644
--- a/fs/ext4/ext4.h
+++ b/fs/ext4/ext4.h
@@ -961,7 +961,7 @@ struct ext4_inode_info {
 	/*
 	 * i_block_group is the number of the block group which contains
 	 * this file's inode.  Constant across the lifetime of the inode,
-	 * it is ued for making block allocation decisions - we try to
+	 * it is used for making block allocation decisions - we try to
 	 * place a file's data blocks near its inode block, and new inodes
 	 * near to their parent directory's inode.
 	 */
@@ -1049,10 +1049,8 @@ struct ext4_inode_info {
 	ext4_group_t	i_last_alloc_group;
 
 	/* allocation reservation info for delalloc */
-	/* In case of bigalloc, these refer to clusters rather than blocks */
+	/* In case of bigalloc, this refer to clusters rather than blocks */
 	unsigned int i_reserved_data_blocks;
-	unsigned int i_reserved_meta_blocks;
-	unsigned int i_allocated_meta_blocks;
 	ext4_lblk_t i_da_metadata_calc_last_lblock;
 	int i_da_metadata_calc_len;
 
@@ -2022,7 +2020,8 @@ static inline __le16 ext4_rec_len_to_disk(unsigned len, unsigned blocksize)
 
 #define is_dx(dir) (ext4_has_feature_dir_index((dir)->i_sb) && \
 		    ext4_test_inode_flag((dir), EXT4_INODE_INDEX))
-#define EXT4_DIR_LINK_MAX(dir) (!is_dx(dir) && (dir)->i_nlink >= EXT4_LINK_MAX)
+#define EXT4_DIR_LINK_MAX(dir) unlikely((dir)->i_nlink >= EXT4_LINK_MAX && \
+		    !(ext4_has_feature_dir_nlink((dir)->i_sb) && is_dx(dir)))
 #define EXT4_DIR_LINK_EMPTY(dir) ((dir)->i_nlink == 2 || (dir)->i_nlink == 1)
 
 /* Legal values for the dx_root hash_version field: */
@@ -2462,6 +2461,8 @@ extern void ext4_process_freed_data(struct super_block *sb, tid_t commit_tid);
 int ext4_inode_is_fast_symlink(struct inode *inode);
 struct buffer_head *ext4_getblk(handle_t *, struct inode *, ext4_lblk_t, int);
 struct buffer_head *ext4_bread(handle_t *, struct inode *, ext4_lblk_t, int);
+int ext4_bread_batch(struct inode *inode, ext4_lblk_t block, int bh_count,
+		     bool wait, struct buffer_head **bhs);
 int ext4_get_block_unwritten(struct inode *inode, sector_t iblock,
 			     struct buffer_head *bh_result, int create);
 int ext4_get_block(struct inode *inode, sector_t iblock,
@@ -3074,7 +3075,7 @@ extern int ext4_handle_dirty_dirent_node(handle_t *handle,
 					 struct inode *inode,
 					 struct buffer_head *bh);
 #define S_SHIFT 12
-static const unsigned char ext4_type_by_mode[S_IFMT >> S_SHIFT] = {
+static const unsigned char ext4_type_by_mode[(S_IFMT >> S_SHIFT) + 1] = {
 	[S_IFREG >> S_SHIFT]	= EXT4_FT_REG_FILE,
 	[S_IFDIR >> S_SHIFT]	= EXT4_FT_DIR,
 	[S_IFCHR >> S_SHIFT]	= EXT4_FT_CHRDEV,
diff --git a/fs/ext4/ext4_jbd2.h b/fs/ext4/ext4_jbd2.h
index dabad1bc8617..48143e32411c 100644
--- a/fs/ext4/ext4_jbd2.h
+++ b/fs/ext4/ext4_jbd2.h
@@ -227,6 +227,9 @@ int ext4_reserve_inode_write(handle_t *handle, struct inode *inode,
 
 int ext4_mark_inode_dirty(handle_t *handle, struct inode *inode);
 
+int ext4_expand_extra_isize(struct inode *inode,
+			    unsigned int new_extra_isize,
+			    struct ext4_iloc *iloc);
 /*
  * Wrapper functions with which ext4 calls into JBD.
  */
diff --git a/fs/ext4/extents.c b/fs/ext4/extents.c
index e0a8425ff74d..97f0fd06728d 100644
--- a/fs/ext4/extents.c
+++ b/fs/ext4/extents.c
@@ -4652,7 +4652,7 @@ retry:
 
 static int ext4_alloc_file_blocks(struct file *file, ext4_lblk_t offset,
 				  ext4_lblk_t len, loff_t new_size,
-				  int flags, int mode)
+				  int flags)
 {
 	struct inode *inode = file_inode(file);
 	handle_t *handle;
@@ -4815,7 +4815,7 @@ static long ext4_zero_range(struct file *file, loff_t offset,
 				round_down(offset, 1 << blkbits) >> blkbits,
 				(round_up((offset + len), 1 << blkbits) -
 				 round_down(offset, 1 << blkbits)) >> blkbits,
-				new_size, flags, mode);
+				new_size, flags);
 		if (ret)
 			goto out_dio;
 
@@ -4841,7 +4841,7 @@ static long ext4_zero_range(struct file *file, loff_t offset,
 		inode->i_mtime = inode->i_ctime = current_time(inode);
 
 		ret = ext4_alloc_file_blocks(file, lblk, max_blocks, new_size,
-					     flags, mode);
+					     flags);
 		up_write(&EXT4_I(inode)->i_mmap_sem);
 		if (ret)
 			goto out_dio;
@@ -4976,8 +4976,7 @@ long ext4_fallocate(struct file *file, int mode, loff_t offset, loff_t len)
 	ext4_inode_block_unlocked_dio(inode);
 	inode_dio_wait(inode);
 
-	ret = ext4_alloc_file_blocks(file, lblk, max_blocks, new_size,
-				     flags, mode);
+	ret = ext4_alloc_file_blocks(file, lblk, max_blocks, new_size, flags);
 	ext4_inode_resume_unlocked_dio(inode);
 	if (ret)
 		goto out;
@@ -5837,7 +5836,7 @@ ext4_swap_extents(handle_t *handle, struct inode *inode1,
 			if (e1_blk > lblk1)
 				next1 = e1_blk;
 			if (e2_blk > lblk2)
-				next2 = e1_blk;
+				next2 = e2_blk;
 			/* Do we have something to swap */
 			if (next1 == EXT_MAX_BLOCKS || next2 == EXT_MAX_BLOCKS)
 				goto finish;
diff --git a/fs/ext4/file.c b/fs/ext4/file.c
index 58294c9a7e1d..0d7cf0cc9b87 100644
--- a/fs/ext4/file.c
+++ b/fs/ext4/file.c
@@ -537,6 +537,8 @@ static int ext4_find_unwritten_pgoff(struct inode *inode,
 				lastoff = page_offset(page);
 				bh = head = page_buffers(page);
 				do {
+					if (lastoff + bh->b_size <= startoff)
+						goto next;
 					if (buffer_uptodate(bh) ||
 					    buffer_unwritten(bh)) {
 						if (whence == SEEK_DATA)
@@ -551,6 +553,7 @@ static int ext4_find_unwritten_pgoff(struct inode *inode,
 						unlock_page(page);
 						goto out;
 					}
+next:
 					lastoff += bh->b_size;
 					bh = bh->b_this_page;
 				} while (bh != head);
diff --git a/fs/ext4/inode.c b/fs/ext4/inode.c
index 3c600f02673f..c774bdc22759 100644
--- a/fs/ext4/inode.c
+++ b/fs/ext4/inode.c
@@ -892,7 +892,7 @@ static int ext4_dio_get_block_unwritten_async(struct inode *inode,
 /*
  * Get block function for non-AIO DIO writes when we create unwritten extent if
  * blocks are not allocated yet. The extent will be converted to written
- * after IO is complete from ext4_ext_direct_IO() function.
+ * after IO is complete by ext4_direct_IO_write().
  */
 static int ext4_dio_get_block_unwritten_sync(struct inode *inode,
 		sector_t iblock, struct buffer_head *bh_result,	int create)
@@ -907,7 +907,7 @@ static int ext4_dio_get_block_unwritten_sync(struct inode *inode,
 
 	/*
 	 * Mark inode as having pending DIO writes to unwritten extents.
-	 * ext4_ext_direct_IO() checks this flag and converts extents to
+	 * ext4_direct_IO_write() checks this flag and converts extents to
 	 * written.
 	 */
 	if (!ret && buffer_unwritten(bh_result))
@@ -1015,6 +1015,50 @@ struct buffer_head *ext4_bread(handle_t *handle, struct inode *inode,
 	return ERR_PTR(-EIO);
 }
 
+/* Read a contiguous batch of blocks. */
+int ext4_bread_batch(struct inode *inode, ext4_lblk_t block, int bh_count,
+		     bool wait, struct buffer_head **bhs)
+{
+	int i, err;
+
+	for (i = 0; i < bh_count; i++) {
+		bhs[i] = ext4_getblk(NULL, inode, block + i, 0 /* map_flags */);
+		if (IS_ERR(bhs[i])) {
+			err = PTR_ERR(bhs[i]);
+			bh_count = i;
+			goto out_brelse;
+		}
+	}
+
+	for (i = 0; i < bh_count; i++)
+		/* Note that NULL bhs[i] is valid because of holes. */
+		if (bhs[i] && !buffer_uptodate(bhs[i]))
+			ll_rw_block(REQ_OP_READ, REQ_META | REQ_PRIO, 1,
+				    &bhs[i]);
+
+	if (!wait)
+		return 0;
+
+	for (i = 0; i < bh_count; i++)
+		if (bhs[i])
+			wait_on_buffer(bhs[i]);
+
+	for (i = 0; i < bh_count; i++) {
+		if (bhs[i] && !buffer_uptodate(bhs[i])) {
+			err = -EIO;
+			goto out_brelse;
+		}
+	}
+	return 0;
+
+out_brelse:
+	for (i = 0; i < bh_count; i++) {
+		brelse(bhs[i]);
+		bhs[i] = NULL;
+	}
+	return err;
+}
+
 int ext4_walk_page_buffers(handle_t *handle,
 			   struct buffer_head *head,
 			   unsigned from,
@@ -5658,22 +5702,16 @@ ext4_reserve_inode_write(handle_t *handle, struct inode *inode,
 	return err;
 }
 
-/*
- * Expand an inode by new_extra_isize bytes.
- * Returns 0 on success or negative error number on failure.
- */
-static int ext4_expand_extra_isize(struct inode *inode,
-				   unsigned int new_extra_isize,
-				   struct ext4_iloc iloc,
-				   handle_t *handle)
+static int __ext4_expand_extra_isize(struct inode *inode,
+				     unsigned int new_extra_isize,
+				     struct ext4_iloc *iloc,
+				     handle_t *handle, int *no_expand)
 {
 	struct ext4_inode *raw_inode;
 	struct ext4_xattr_ibody_header *header;
+	int error;
 
-	if (EXT4_I(inode)->i_extra_isize >= new_extra_isize)
-		return 0;
-
-	raw_inode = ext4_raw_inode(&iloc);
+	raw_inode = ext4_raw_inode(iloc);
 
 	header = IHDR(inode, raw_inode);
 
@@ -5688,8 +5726,98 @@ static int ext4_expand_extra_isize(struct inode *inode,
 	}
 
 	/* try to expand with EAs present */
-	return ext4_expand_extra_isize_ea(inode, new_extra_isize,
-					  raw_inode, handle);
+	error = ext4_expand_extra_isize_ea(inode, new_extra_isize,
+					   raw_inode, handle);
+	if (error) {
+		/*
+		 * Inode size expansion failed; don't try again
+		 */
+		*no_expand = 1;
+	}
+
+	return error;
+}
+
+/*
+ * Expand an inode by new_extra_isize bytes.
+ * Returns 0 on success or negative error number on failure.
+ */
+static int ext4_try_to_expand_extra_isize(struct inode *inode,
+					  unsigned int new_extra_isize,
+					  struct ext4_iloc iloc,
+					  handle_t *handle)
+{
+	int no_expand;
+	int error;
+
+	if (ext4_test_inode_state(inode, EXT4_STATE_NO_EXPAND))
+		return -EOVERFLOW;
+
+	/*
+	 * In nojournal mode, we can immediately attempt to expand
+	 * the inode.  When journaled, we first need to obtain extra
+	 * buffer credits since we may write into the EA block
+	 * with this same handle. If journal_extend fails, then it will
+	 * only result in a minor loss of functionality for that inode.
+	 * If this is felt to be critical, then e2fsck should be run to
+	 * force a large enough s_min_extra_isize.
+	 */
+	if (ext4_handle_valid(handle) &&
+	    jbd2_journal_extend(handle,
+				EXT4_DATA_TRANS_BLOCKS(inode->i_sb)) != 0)
+		return -ENOSPC;
+
+	if (ext4_write_trylock_xattr(inode, &no_expand) == 0)
+		return -EBUSY;
+
+	error = __ext4_expand_extra_isize(inode, new_extra_isize, &iloc,
+					  handle, &no_expand);
+	ext4_write_unlock_xattr(inode, &no_expand);
+
+	return error;
+}
+
+int ext4_expand_extra_isize(struct inode *inode,
+			    unsigned int new_extra_isize,
+			    struct ext4_iloc *iloc)
+{
+	handle_t *handle;
+	int no_expand;
+	int error, rc;
+
+	if (ext4_test_inode_state(inode, EXT4_STATE_NO_EXPAND)) {
+		brelse(iloc->bh);
+		return -EOVERFLOW;
+	}
+
+	handle = ext4_journal_start(inode, EXT4_HT_INODE,
+				    EXT4_DATA_TRANS_BLOCKS(inode->i_sb));
+	if (IS_ERR(handle)) {
+		error = PTR_ERR(handle);
+		brelse(iloc->bh);
+		return error;
+	}
+
+	ext4_write_lock_xattr(inode, &no_expand);
+
+	BUFFER_TRACE(iloc.bh, "get_write_access");
+	error = ext4_journal_get_write_access(handle, iloc->bh);
+	if (error) {
+		brelse(iloc->bh);
+		goto out_stop;
+	}
+
+	error = __ext4_expand_extra_isize(inode, new_extra_isize, iloc,
+					  handle, &no_expand);
+
+	rc = ext4_mark_iloc_dirty(handle, inode, iloc);
+	if (!error)
+		error = rc;
+
+	ext4_write_unlock_xattr(inode, &no_expand);
+out_stop:
+	ext4_journal_stop(handle);
+	return error;
 }
 
 /*
@@ -5709,44 +5837,18 @@ int ext4_mark_inode_dirty(handle_t *handle, struct inode *inode)
 {
 	struct ext4_iloc iloc;
 	struct ext4_sb_info *sbi = EXT4_SB(inode->i_sb);
-	static unsigned int mnt_count;
-	int err, ret;
+	int err;
 
 	might_sleep();
 	trace_ext4_mark_inode_dirty(inode, _RET_IP_);
 	err = ext4_reserve_inode_write(handle, inode, &iloc);
 	if (err)
 		return err;
-	if (EXT4_I(inode)->i_extra_isize < sbi->s_want_extra_isize &&
-	    !ext4_test_inode_state(inode, EXT4_STATE_NO_EXPAND)) {
-		/*
-		 * In nojournal mode, we can immediately attempt to expand
-		 * the inode.  When journaled, we first need to obtain extra
-		 * buffer credits since we may write into the EA block
-		 * with this same handle. If journal_extend fails, then it will
-		 * only result in a minor loss of functionality for that inode.
-		 * If this is felt to be critical, then e2fsck should be run to
-		 * force a large enough s_min_extra_isize.
-		 */
-		if (!ext4_handle_valid(handle) ||
-		    jbd2_journal_extend(handle,
-			     EXT4_DATA_TRANS_BLOCKS(inode->i_sb)) == 0) {
-			ret = ext4_expand_extra_isize(inode,
-						      sbi->s_want_extra_isize,
-						      iloc, handle);
-			if (ret) {
-				if (mnt_count !=
-					le16_to_cpu(sbi->s_es->s_mnt_count)) {
-					ext4_warning(inode->i_sb,
-					"Unable to expand inode %lu. Delete"
-					" some EAs or run e2fsck.",
-					inode->i_ino);
-					mnt_count =
-					  le16_to_cpu(sbi->s_es->s_mnt_count);
-				}
-			}
-		}
-	}
+
+	if (EXT4_I(inode)->i_extra_isize < sbi->s_want_extra_isize)
+		ext4_try_to_expand_extra_isize(inode, sbi->s_want_extra_isize,
+					       iloc, handle);
+
 	return ext4_mark_iloc_dirty(handle, inode, &iloc);
 }
 
diff --git a/fs/ext4/ioctl.c b/fs/ext4/ioctl.c
index 42b3a73143cf..afb66d4ab5cf 100644
--- a/fs/ext4/ioctl.c
+++ b/fs/ext4/ioctl.c
@@ -64,18 +64,16 @@ static void swap_inode_data(struct inode *inode1, struct inode *inode2)
 	ei1 = EXT4_I(inode1);
 	ei2 = EXT4_I(inode2);
 
-	memswap(&inode1->i_flags, &inode2->i_flags, sizeof(inode1->i_flags));
-	memswap(&inode1->i_version, &inode2->i_version,
-		  sizeof(inode1->i_version));
-	memswap(&inode1->i_blocks, &inode2->i_blocks,
-		  sizeof(inode1->i_blocks));
-	memswap(&inode1->i_bytes, &inode2->i_bytes, sizeof(inode1->i_bytes));
-	memswap(&inode1->i_atime, &inode2->i_atime, sizeof(inode1->i_atime));
-	memswap(&inode1->i_mtime, &inode2->i_mtime, sizeof(inode1->i_mtime));
+	swap(inode1->i_flags, inode2->i_flags);
+	swap(inode1->i_version, inode2->i_version);
+	swap(inode1->i_blocks, inode2->i_blocks);
+	swap(inode1->i_bytes, inode2->i_bytes);
+	swap(inode1->i_atime, inode2->i_atime);
+	swap(inode1->i_mtime, inode2->i_mtime);
 
 	memswap(ei1->i_data, ei2->i_data, sizeof(ei1->i_data));
-	memswap(&ei1->i_flags, &ei2->i_flags, sizeof(ei1->i_flags));
-	memswap(&ei1->i_disksize, &ei2->i_disksize, sizeof(ei1->i_disksize));
+	swap(ei1->i_flags, ei2->i_flags);
+	swap(ei1->i_disksize, ei2->i_disksize);
 	ext4_es_remove_extent(inode1, 0, EXT_MAX_BLOCKS);
 	ext4_es_remove_extent(inode2, 0, EXT_MAX_BLOCKS);
 
@@ -351,11 +349,14 @@ static int ext4_ioctl_setproject(struct file *filp, __u32 projid)
 
 	raw_inode = ext4_raw_inode(&iloc);
 	if (!EXT4_FITS_IN_INODE(raw_inode, ei, i_projid)) {
-		err = -EOVERFLOW;
+		err = ext4_expand_extra_isize(inode,
+					      EXT4_SB(sb)->s_want_extra_isize,
+					      &iloc);
+		if (err)
+			goto out_unlock;
+	} else {
 		brelse(iloc.bh);
-		goto out_unlock;
 	}
-	brelse(iloc.bh);
 
 	dquot_initialize(inode);
 
diff --git a/fs/ext4/mballoc.c b/fs/ext4/mballoc.c
index 581e357e8406..701085620cd8 100644
--- a/fs/ext4/mballoc.c
+++ b/fs/ext4/mballoc.c
@@ -2295,6 +2295,9 @@ static int ext4_mb_seq_groups_show(struct seq_file *seq, void *v)
 	int err, buddy_loaded = 0;
 	struct ext4_buddy e4b;
 	struct ext4_group_info *grinfo;
+	unsigned char blocksize_bits = min_t(unsigned char,
+					     sb->s_blocksize_bits,
+					     EXT4_MAX_BLOCK_LOG_SIZE);
 	struct sg {
 		struct ext4_group_info info;
 		ext4_grpblk_t counters[EXT4_MAX_BLOCK_LOG_SIZE + 2];
@@ -2306,8 +2309,9 @@ static int ext4_mb_seq_groups_show(struct seq_file *seq, void *v)
 			      " 2^0   2^1   2^2   2^3   2^4   2^5   2^6  "
 			      " 2^7   2^8   2^9   2^10  2^11  2^12  2^13  ]\n");
 
-	i = (sb->s_blocksize_bits + 2) * sizeof(sg.info.bb_counters[0]) +
+	i = (blocksize_bits + 2) * sizeof(sg.info.bb_counters[0]) +
 		sizeof(struct ext4_group_info);
+
 	grinfo = ext4_get_group_info(sb, group);
 	/* Load the group info in memory only if not already loaded. */
 	if (unlikely(EXT4_MB_GRP_NEED_INIT(grinfo))) {
@@ -2327,7 +2331,7 @@ static int ext4_mb_seq_groups_show(struct seq_file *seq, void *v)
 	seq_printf(seq, "#%-5u: %-5u %-5u %-5u [", group, sg.info.bb_free,
 			sg.info.bb_fragments, sg.info.bb_first_free);
 	for (i = 0; i <= 13; i++)
-		seq_printf(seq, " %-5u", i <= sb->s_blocksize_bits + 1 ?
+		seq_printf(seq, " %-5u", i <= blocksize_bits + 1 ?
 				sg.info.bb_counters[i] : 0);
 	seq_printf(seq, " ]\n");
 
@@ -2892,8 +2896,10 @@ void ext4_process_freed_data(struct super_block *sb, tid_t commit_tid)
 				break;
 		}
 
-		if (discard_bio)
+		if (discard_bio) {
 			submit_bio_wait(discard_bio);
+			bio_put(discard_bio);
+		}
 	}
 
 	list_for_each_entry_safe(entry, tmp, &freed_data_list, efd_list)
diff --git a/fs/ext4/namei.c b/fs/ext4/namei.c
index 13f0cadb1238..c1cf020d1889 100644
--- a/fs/ext4/namei.c
+++ b/fs/ext4/namei.c
@@ -1342,13 +1342,12 @@ static struct buffer_head * ext4_find_entry (struct inode *dir,
 	struct super_block *sb;
 	struct buffer_head *bh_use[NAMEI_RA_SIZE];
 	struct buffer_head *bh, *ret = NULL;
-	ext4_lblk_t start, block, b;
+	ext4_lblk_t start, block;
 	const u8 *name = d_name->name;
-	int ra_max = 0;		/* Number of bh's in the readahead
+	size_t ra_max = 0;	/* Number of bh's in the readahead
 				   buffer, bh_use[] */
-	int ra_ptr = 0;		/* Current index into readahead
+	size_t ra_ptr = 0;	/* Current index into readahead
 				   buffer */
-	int num = 0;
 	ext4_lblk_t  nblocks;
 	int i, namelen, retval;
 	struct ext4_filename fname;
@@ -1411,31 +1410,17 @@ restart:
 		if (ra_ptr >= ra_max) {
 			/* Refill the readahead buffer */
 			ra_ptr = 0;
-			b = block;
-			for (ra_max = 0; ra_max < NAMEI_RA_SIZE; ra_max++) {
-				/*
-				 * Terminate if we reach the end of the
-				 * directory and must wrap, or if our
-				 * search has finished at this block.
-				 */
-				if (b >= nblocks || (num && block == start)) {
-					bh_use[ra_max] = NULL;
-					break;
-				}
-				num++;
-				bh = ext4_getblk(NULL, dir, b++, 0);
-				if (IS_ERR(bh)) {
-					if (ra_max == 0) {
-						ret = bh;
-						goto cleanup_and_exit;
-					}
-					break;
-				}
-				bh_use[ra_max] = bh;
-				if (bh)
-					ll_rw_block(REQ_OP_READ,
-						    REQ_META | REQ_PRIO,
-						    1, &bh);
+			if (block < start)
+				ra_max = start - block;
+			else
+				ra_max = nblocks - block;
+			ra_max = min(ra_max, ARRAY_SIZE(bh_use));
+			retval = ext4_bread_batch(dir, block, ra_max,
+						  false /* wait */, bh_use);
+			if (retval) {
+				ret = ERR_PTR(retval);
+				ra_max = 0;
+				goto cleanup_and_exit;
 			}
 		}
 		if ((bh = bh_use[ra_ptr++]) == NULL)
@@ -2395,19 +2380,22 @@ out:
 }
 
 /*
- * DIR_NLINK feature is set if 1) nlinks > EXT4_LINK_MAX or 2) nlinks == 2,
- * since this indicates that nlinks count was previously 1.
+ * Set directory link count to 1 if nlinks > EXT4_LINK_MAX, or if nlinks == 2
+ * since this indicates that nlinks count was previously 1 to avoid overflowing
+ * the 16-bit i_links_count field on disk.  Directories with i_nlink == 1 mean
+ * that subdirectory link counts are not being maintained accurately.
+ *
+ * The caller has already checked for i_nlink overflow in case the DIR_LINK
+ * feature is not enabled and returned -EMLINK.  The is_dx() check is a proxy
+ * for checking S_ISDIR(inode) (since the INODE_INDEX feature will not be set
+ * on regular files) and to avoid creating huge/slow non-HTREE directories.
  */
 static void ext4_inc_count(handle_t *handle, struct inode *inode)
 {
 	inc_nlink(inode);
-	if (is_dx(inode) && inode->i_nlink > 1) {
-		/* limit is 16-bit i_links_count */
-		if (inode->i_nlink >= EXT4_LINK_MAX || inode->i_nlink == 2) {
-			set_nlink(inode, 1);
-			ext4_set_feature_dir_nlink(inode->i_sb);
-		}
-	}
+	if (is_dx(inode) &&
+	    (inode->i_nlink > EXT4_LINK_MAX || inode->i_nlink == 2))
+		set_nlink(inode, 1);
 }
 
 /*
diff --git a/fs/ext4/resize.c b/fs/ext4/resize.c
index c3ed9021b781..035cd3f4785e 100644
--- a/fs/ext4/resize.c
+++ b/fs/ext4/resize.c
@@ -1927,7 +1927,8 @@ retry:
 			n_desc_blocks = o_desc_blocks +
 				le16_to_cpu(es->s_reserved_gdt_blocks);
 			n_group = n_desc_blocks * EXT4_DESC_PER_BLOCK(sb);
-			n_blocks_count = n_group * EXT4_BLOCKS_PER_GROUP(sb);
+			n_blocks_count = (ext4_fsblk_t)n_group *
+				EXT4_BLOCKS_PER_GROUP(sb);
 			n_group--; /* set to last group number */
 		}
 
diff --git a/fs/ext4/super.c b/fs/ext4/super.c
index 0886fe82e9c4..d61a70e2193a 100644
--- a/fs/ext4/super.c
+++ b/fs/ext4/super.c
@@ -978,8 +978,6 @@ static struct inode *ext4_alloc_inode(struct super_block *sb)
 	ei->i_es_shk_nr = 0;
 	ei->i_es_shrink_lblk = 0;
 	ei->i_reserved_data_blocks = 0;
-	ei->i_reserved_meta_blocks = 0;
-	ei->i_allocated_meta_blocks = 0;
 	ei->i_da_metadata_calc_len = 0;
 	ei->i_da_metadata_calc_last_lblock = 0;
 	spin_lock_init(&(ei->i_block_reservation_lock));
diff --git a/fs/ext4/xattr.c b/fs/ext4/xattr.c
index cff4f41ced61..3dd970168448 100644
--- a/fs/ext4/xattr.c
+++ b/fs/ext4/xattr.c
@@ -317,28 +317,41 @@ static void ext4_xattr_inode_set_hash(struct inode *ea_inode, u32 hash)
  */
 static int ext4_xattr_inode_read(struct inode *ea_inode, void *buf, size_t size)
 {
-	unsigned long block = 0;
-	struct buffer_head *bh;
-	int blocksize = ea_inode->i_sb->s_blocksize;
-	size_t csize, copied = 0;
-	void *copy_pos = buf;
-
-	while (copied < size) {
-		csize = (size - copied) > blocksize ? blocksize : size - copied;
-		bh = ext4_bread(NULL, ea_inode, block, 0);
-		if (IS_ERR(bh))
-			return PTR_ERR(bh);
-		if (!bh)
-			return -EFSCORRUPTED;
+	int blocksize = 1 << ea_inode->i_blkbits;
+	int bh_count = (size + blocksize - 1) >> ea_inode->i_blkbits;
+	int tail_size = (size % blocksize) ?: blocksize;
+	struct buffer_head *bhs_inline[8];
+	struct buffer_head **bhs = bhs_inline;
+	int i, ret;
+
+	if (bh_count > ARRAY_SIZE(bhs_inline)) {
+		bhs = kmalloc_array(bh_count, sizeof(*bhs), GFP_NOFS);
+		if (!bhs)
+			return -ENOMEM;
+	}
 
-		memcpy(copy_pos, bh->b_data, csize);
-		brelse(bh);
+	ret = ext4_bread_batch(ea_inode, 0 /* block */, bh_count,
+			       true /* wait */, bhs);
+	if (ret)
+		goto free_bhs;
 
-		copy_pos += csize;
-		block += 1;
-		copied += csize;
+	for (i = 0; i < bh_count; i++) {
+		/* There shouldn't be any holes in ea_inode. */
+		if (!bhs[i]) {
+			ret = -EFSCORRUPTED;
+			goto put_bhs;
+		}
+		memcpy((char *)buf + blocksize * i, bhs[i]->b_data,
+		       i < bh_count - 1 ? blocksize : tail_size);
 	}
-	return 0;
+	ret = 0;
+put_bhs:
+	for (i = 0; i < bh_count; i++)
+		brelse(bhs[i]);
+free_bhs:
+	if (bhs != bhs_inline)
+		kfree(bhs);
+	return ret;
 }
 
 static int ext4_xattr_inode_iget(struct inode *parent, unsigned long ea_ino,
@@ -451,6 +464,7 @@ ext4_xattr_inode_get(struct inode *inode, struct ext4_xattr_entry *entry,
 		}
 		/* Do not add ea_inode to the cache. */
 		ea_inode_cache = NULL;
+		err = 0;
 	} else if (err)
 		goto out;
 
@@ -1529,7 +1543,7 @@ static int ext4_xattr_set_entry(struct ext4_xattr_info *i,
 			/* Clear padding bytes. */
 			memset(val + i->value_len, 0, new_size - i->value_len);
 		}
-		return 0;
+		goto update_hash;
 	}
 
 	/* Compute min_offs and last. */
@@ -1693,6 +1707,7 @@ static int ext4_xattr_set_entry(struct ext4_xattr_info *i,
 		here->e_value_size = cpu_to_le32(i->value_len);
 	}
 
+update_hash:
 	if (i->value) {
 		__le32 hash = 0;
 
@@ -1711,7 +1726,8 @@ static int ext4_xattr_set_entry(struct ext4_xattr_info *i,
 						     here->e_name_len,
 						     &crc32c_hash, 1);
 		} else if (is_block) {
-			__le32 *value = s->base + min_offs - new_size;
+			__le32 *value = s->base + le16_to_cpu(
+							here->e_value_offs);
 
 			hash = ext4_xattr_hash_entry(here->e_name,
 						     here->e_name_len, value,
@@ -1815,9 +1831,6 @@ ext4_xattr_block_set(handle_t *handle, struct inode *inode,
 			ea_bdebug(bs->bh, "modifying in-place");
 			error = ext4_xattr_set_entry(i, s, handle, inode,
 						     true /* is_block */);
-			if (!error)
-				ext4_xattr_block_cache_insert(ea_block_cache,
-							      bs->bh);
 			ext4_xattr_block_csum_set(inode, bs->bh);
 			unlock_buffer(bs->bh);
 			if (error == -EFSCORRUPTED)
@@ -1973,6 +1986,7 @@ inserted:
 		} else if (bs->bh && s->base == bs->bh->b_data) {
 			/* We were modifying this block in-place. */
 			ea_bdebug(bs->bh, "keeping this block");
+			ext4_xattr_block_cache_insert(ea_block_cache, bs->bh);
 			new_bh = bs->bh;
 			get_bh(new_bh);
 		} else {
@@ -2625,23 +2639,21 @@ int ext4_expand_extra_isize_ea(struct inode *inode, int new_extra_isize,
 			       struct ext4_inode *raw_inode, handle_t *handle)
 {
 	struct ext4_xattr_ibody_header *header;
-	struct buffer_head *bh = NULL;
+	struct buffer_head *bh;
+	struct ext4_sb_info *sbi = EXT4_SB(inode->i_sb);
+	static unsigned int mnt_count;
 	size_t min_offs;
 	size_t ifree, bfree;
 	int total_ino;
 	void *base, *end;
 	int error = 0, tried_min_extra_isize = 0;
-	int s_min_extra_isize = le16_to_cpu(EXT4_SB(inode->i_sb)->s_es->s_min_extra_isize);
+	int s_min_extra_isize = le16_to_cpu(sbi->s_es->s_min_extra_isize);
 	int isize_diff;	/* How much do we need to grow i_extra_isize */
-	int no_expand;
-
-	if (ext4_write_trylock_xattr(inode, &no_expand) == 0)
-		return 0;
 
 retry:
 	isize_diff = new_extra_isize - EXT4_I(inode)->i_extra_isize;
 	if (EXT4_I(inode)->i_extra_isize >= new_extra_isize)
-		goto out;
+		return 0;
 
 	header = IHDR(inode, raw_inode);
 
@@ -2676,6 +2688,7 @@ retry:
 			EXT4_ERROR_INODE(inode, "bad block %llu",
 					 EXT4_I(inode)->i_file_acl);
 			error = -EFSCORRUPTED;
+			brelse(bh);
 			goto cleanup;
 		}
 		base = BHDR(bh);
@@ -2683,11 +2696,11 @@ retry:
 		min_offs = end - base;
 		bfree = ext4_xattr_free_space(BFIRST(bh), &min_offs, base,
 					      NULL);
+		brelse(bh);
 		if (bfree + ifree < isize_diff) {
 			if (!tried_min_extra_isize && s_min_extra_isize) {
 				tried_min_extra_isize++;
 				new_extra_isize = s_min_extra_isize;
-				brelse(bh);
 				goto retry;
 			}
 			error = -ENOSPC;
@@ -2705,7 +2718,6 @@ retry:
 		    s_min_extra_isize) {
 			tried_min_extra_isize++;
 			new_extra_isize = s_min_extra_isize;
-			brelse(bh);
 			goto retry;
 		}
 		goto cleanup;
@@ -2717,18 +2729,13 @@ shift:
 			EXT4_GOOD_OLD_INODE_SIZE + new_extra_isize,
 			(void *)header, total_ino);
 	EXT4_I(inode)->i_extra_isize = new_extra_isize;
-	brelse(bh);
-out:
-	ext4_write_unlock_xattr(inode, &no_expand);
-	return 0;
 
 cleanup:
-	brelse(bh);
-	/*
-	 * Inode size expansion failed; don't try again
-	 */
-	no_expand = 1;
-	ext4_write_unlock_xattr(inode, &no_expand);
+	if (error && (mnt_count != le16_to_cpu(sbi->s_es->s_mnt_count))) {
+		ext4_warning(inode->i_sb, "Unable to expand inode %lu. Delete some EAs or run e2fsck.",
+			     inode->i_ino);
+		mnt_count = le16_to_cpu(sbi->s_es->s_mnt_count);
+	}
 	return error;
 }
 
diff --git a/fs/f2fs/acl.c b/fs/f2fs/acl.c
index a140c5e3dc54..b4b8438c42ef 100644
--- a/fs/f2fs/acl.c
+++ b/fs/f2fs/acl.c
@@ -211,7 +211,7 @@ static int __f2fs_set_acl(struct inode *inode, int type,
 	switch (type) {
 	case ACL_TYPE_ACCESS:
 		name_index = F2FS_XATTR_INDEX_POSIX_ACL_ACCESS;
-		if (acl) {
+		if (acl && !ipage) {
 			error = posix_acl_update_mode(inode, &inode->i_mode, &acl);
 			if (error)
 				return error;
diff --git a/fs/f2fs/checkpoint.c b/fs/f2fs/checkpoint.c
index 56bbf592e487..5b876f6d3f6b 100644
--- a/fs/f2fs/checkpoint.c
+++ b/fs/f2fs/checkpoint.c
@@ -879,6 +879,7 @@ int sync_dirty_inodes(struct f2fs_sb_info *sbi, enum inode_type type)
 	struct inode *inode;
 	struct f2fs_inode_info *fi;
 	bool is_dir = (type == DIR_INODE);
+	unsigned long ino = 0;
 
 	trace_f2fs_sync_dirty_inodes_enter(sbi->sb, is_dir,
 				get_pages(sbi, is_dir ?
@@ -901,8 +902,17 @@ retry:
 	inode = igrab(&fi->vfs_inode);
 	spin_unlock(&sbi->inode_lock[type]);
 	if (inode) {
+		unsigned long cur_ino = inode->i_ino;
+
 		filemap_fdatawrite(inode->i_mapping);
 		iput(inode);
+		/* We need to give cpu to another writers. */
+		if (ino == cur_ino) {
+			congestion_wait(BLK_RW_ASYNC, HZ/50);
+			cond_resched();
+		} else {
+			ino = cur_ino;
+		}
 	} else {
 		/*
 		 * We should submit bio, since it exists several
diff --git a/fs/f2fs/file.c b/fs/f2fs/file.c
index a0e6d2c65a9e..2706130c261b 100644
--- a/fs/f2fs/file.c
+++ b/fs/f2fs/file.c
@@ -1538,7 +1538,6 @@ static int f2fs_ioc_setflags(struct file *filp, unsigned long arg)
 
 	/* Is it quota file? Do not allow user to mess with it */
 	if (IS_NOQUOTA(inode)) {
-		inode_unlock(inode);
 		ret = -EPERM;
 		goto unlock_out;
 	}
@@ -1549,9 +1548,8 @@ static int f2fs_ioc_setflags(struct file *filp, unsigned long arg)
 
 	if ((flags ^ oldflags) & (FS_APPEND_FL | FS_IMMUTABLE_FL)) {
 		if (!capable(CAP_LINUX_IMMUTABLE)) {
-			inode_unlock(inode);
 			ret = -EPERM;
-			goto out;
+			goto unlock_out;
 		}
 	}
 
@@ -1564,7 +1562,6 @@ static int f2fs_ioc_setflags(struct file *filp, unsigned long arg)
 	f2fs_mark_inode_dirty_sync(inode, false);
 unlock_out:
 	inode_unlock(inode);
-out:
 	mnt_drop_write_file(filp);
 	return ret;
 }
diff --git a/fs/f2fs/sysfs.c b/fs/f2fs/sysfs.c
index 9adc202fcd6f..71191d89917d 100644
--- a/fs/f2fs/sysfs.c
+++ b/fs/f2fs/sysfs.c
@@ -11,6 +11,7 @@
  */
 #include <linux/proc_fs.h>
 #include <linux/f2fs_fs.h>
+#include <linux/seq_file.h>
 
 #include "f2fs.h"
 #include "segment.h"
diff --git a/fs/filesystems.c b/fs/filesystems.c
index 8b99955e3504..a920ad2629ac 100644
--- a/fs/filesystems.c
+++ b/fs/filesystems.c
@@ -33,9 +33,10 @@ static struct file_system_type *file_systems;
 static DEFINE_RWLOCK(file_systems_lock);
 
 /* WARNING: This can be used only if we _already_ own a reference */
-void get_filesystem(struct file_system_type *fs)
+struct file_system_type *get_filesystem(struct file_system_type *fs)
 {
 	__module_get(fs->owner);
+	return fs;
 }
 
 void put_filesystem(struct file_system_type *fs)
diff --git a/fs/fs-writeback.c b/fs/fs-writeback.c
index 8b426f83909f..245c430a2e41 100644
--- a/fs/fs-writeback.c
+++ b/fs/fs-writeback.c
@@ -380,8 +380,8 @@ static void inode_switch_wbs_work_fn(struct work_struct *work)
 		struct page *page = radix_tree_deref_slot_protected(slot,
 							&mapping->tree_lock);
 		if (likely(page) && PageDirty(page)) {
-			__dec_wb_stat(old_wb, WB_RECLAIMABLE);
-			__inc_wb_stat(new_wb, WB_RECLAIMABLE);
+			dec_wb_stat(old_wb, WB_RECLAIMABLE);
+			inc_wb_stat(new_wb, WB_RECLAIMABLE);
 		}
 	}
 
@@ -391,8 +391,8 @@ static void inode_switch_wbs_work_fn(struct work_struct *work)
 							&mapping->tree_lock);
 		if (likely(page)) {
 			WARN_ON_ONCE(!PageWriteback(page));
-			__dec_wb_stat(old_wb, WB_WRITEBACK);
-			__inc_wb_stat(new_wb, WB_WRITEBACK);
+			dec_wb_stat(old_wb, WB_WRITEBACK);
+			inc_wb_stat(new_wb, WB_WRITEBACK);
 		}
 	}
 
diff --git a/fs/fuse/file.c b/fs/fuse/file.c
index 3ee4fdc3da9e..ab60051be6e5 100644
--- a/fs/fuse/file.c
+++ b/fs/fuse/file.c
@@ -46,7 +46,7 @@ struct fuse_file *fuse_file_alloc(struct fuse_conn *fc)
 {
 	struct fuse_file *ff;
 
-	ff = kmalloc(sizeof(struct fuse_file), GFP_KERNEL);
+	ff = kzalloc(sizeof(struct fuse_file), GFP_KERNEL);
 	if (unlikely(!ff))
 		return NULL;
 
@@ -609,7 +609,7 @@ static void fuse_aio_complete_req(struct fuse_conn *fc, struct fuse_req *req)
 	struct fuse_io_priv *io = req->io;
 	ssize_t pos = -1;
 
-	fuse_release_user_pages(req, !io->write);
+	fuse_release_user_pages(req, io->should_dirty);
 
 	if (io->write) {
 		if (req->misc.write.in.size != req->misc.write.out.size)
@@ -1316,7 +1316,6 @@ ssize_t fuse_direct_io(struct fuse_io_priv *io, struct iov_iter *iter,
 		       loff_t *ppos, int flags)
 {
 	int write = flags & FUSE_DIO_WRITE;
-	bool should_dirty = !write && iter_is_iovec(iter);
 	int cuse = flags & FUSE_DIO_CUSE;
 	struct file *file = io->file;
 	struct inode *inode = file->f_mapping->host;
@@ -1346,6 +1345,7 @@ ssize_t fuse_direct_io(struct fuse_io_priv *io, struct iov_iter *iter,
 			inode_unlock(inode);
 	}
 
+	io->should_dirty = !write && iter_is_iovec(iter);
 	while (count) {
 		size_t nres;
 		fl_owner_t owner = current->files;
@@ -1360,7 +1360,7 @@ ssize_t fuse_direct_io(struct fuse_io_priv *io, struct iov_iter *iter,
 			nres = fuse_send_read(req, io, pos, nbytes, owner);
 
 		if (!io->async)
-			fuse_release_user_pages(req, should_dirty);
+			fuse_release_user_pages(req, io->should_dirty);
 		if (req->out.h.error) {
 			err = req->out.h.error;
 			break;
@@ -1669,6 +1669,7 @@ err_nofile:
 err_free:
 	fuse_request_free(req);
 err:
+	mapping_set_error(page->mapping, error);
 	end_page_writeback(page);
 	return error;
 }
diff --git a/fs/fuse/fuse_i.h b/fs/fuse/fuse_i.h
index 1bd7ffdad593..bd4d2a3e1ec1 100644
--- a/fs/fuse/fuse_i.h
+++ b/fs/fuse/fuse_i.h
@@ -249,6 +249,7 @@ struct fuse_io_priv {
 	size_t size;
 	__u64 offset;
 	bool write;
+	bool should_dirty;
 	int err;
 	struct kiocb *iocb;
 	struct file *file;
diff --git a/fs/gfs2/dir.c b/fs/gfs2/dir.c
index db427658ccd9..5ee2e2f8576c 100644
--- a/fs/gfs2/dir.c
+++ b/fs/gfs2/dir.c
@@ -872,7 +872,6 @@ static struct gfs2_leaf *new_leaf(struct inode *inode, struct buffer_head **pbh,
 	struct buffer_head *bh;
 	struct gfs2_leaf *leaf;
 	struct gfs2_dirent *dent;
-	struct qstr name = { .name = "" };
 	struct timespec tv = current_time(inode);
 
 	error = gfs2_alloc_blocks(ip, &bn, &n, 0, NULL);
@@ -896,7 +895,7 @@ static struct gfs2_leaf *new_leaf(struct inode *inode, struct buffer_head **pbh,
 	leaf->lf_sec = cpu_to_be64(tv.tv_sec);
 	memset(leaf->lf_reserved2, 0, sizeof(leaf->lf_reserved2));
 	dent = (struct gfs2_dirent *)(leaf+1);
-	gfs2_qstr2dirent(&name, bh->b_size - sizeof(struct gfs2_leaf), dent);
+	gfs2_qstr2dirent(&empty_name, bh->b_size - sizeof(struct gfs2_leaf), dent);
 	*pbh = bh;
 	return leaf;
 }
diff --git a/fs/hfsplus/posix_acl.c b/fs/hfsplus/posix_acl.c
index 9b92058a1240..6bb5d7c42888 100644
--- a/fs/hfsplus/posix_acl.c
+++ b/fs/hfsplus/posix_acl.c
@@ -51,8 +51,8 @@ struct posix_acl *hfsplus_get_posix_acl(struct inode *inode, int type)
 	return acl;
 }
 
-int hfsplus_set_posix_acl(struct inode *inode, struct posix_acl *acl,
-		int type)
+static int __hfsplus_set_posix_acl(struct inode *inode, struct posix_acl *acl,
+				   int type)
 {
 	int err;
 	char *xattr_name;
@@ -64,12 +64,6 @@ int hfsplus_set_posix_acl(struct inode *inode, struct posix_acl *acl,
 	switch (type) {
 	case ACL_TYPE_ACCESS:
 		xattr_name = XATTR_NAME_POSIX_ACL_ACCESS;
-		if (acl) {
-			err = posix_acl_update_mode(inode, &inode->i_mode, &acl);
-			if (err)
-				return err;
-		}
-		err = 0;
 		break;
 
 	case ACL_TYPE_DEFAULT:
@@ -105,6 +99,18 @@ end_set_acl:
 	return err;
 }
 
+int hfsplus_set_posix_acl(struct inode *inode, struct posix_acl *acl, int type)
+{
+	int err;
+
+	if (type == ACL_TYPE_ACCESS && acl) {
+		err = posix_acl_update_mode(inode, &inode->i_mode, &acl);
+		if (err)
+			return err;
+	}
+	return __hfsplus_set_posix_acl(inode, acl, type);
+}
+
 int hfsplus_init_posix_acl(struct inode *inode, struct inode *dir)
 {
 	int err = 0;
@@ -122,15 +128,15 @@ int hfsplus_init_posix_acl(struct inode *inode, struct inode *dir)
 		return err;
 
 	if (default_acl) {
-		err = hfsplus_set_posix_acl(inode, default_acl,
-					    ACL_TYPE_DEFAULT);
+		err = __hfsplus_set_posix_acl(inode, default_acl,
+					      ACL_TYPE_DEFAULT);
 		posix_acl_release(default_acl);
 	}
 
 	if (acl) {
 		if (!err)
-			err = hfsplus_set_posix_acl(inode, acl,
-						    ACL_TYPE_ACCESS);
+			err = __hfsplus_set_posix_acl(inode, acl,
+						      ACL_TYPE_ACCESS);
 		posix_acl_release(acl);
 	}
 	return err;
diff --git a/fs/hugetlbfs/inode.c b/fs/hugetlbfs/inode.c
index 52388611635e..28d2753be094 100644
--- a/fs/hugetlbfs/inode.c
+++ b/fs/hugetlbfs/inode.c
@@ -46,13 +46,13 @@ static const struct inode_operations hugetlbfs_dir_inode_operations;
 static const struct inode_operations hugetlbfs_inode_operations;
 
 struct hugetlbfs_config {
-	kuid_t   uid;
-	kgid_t   gid;
-	umode_t mode;
-	long	max_hpages;
-	long	nr_inodes;
-	struct hstate *hstate;
-	long    min_hpages;
+	struct hstate		*hstate;
+	long			max_hpages;
+	long			nr_inodes;
+	long			min_hpages;
+	kuid_t			uid;
+	kgid_t			gid;
+	umode_t			mode;
 };
 
 struct hugetlbfs_inode_info {
@@ -861,6 +861,46 @@ static int hugetlbfs_error_remove_page(struct address_space *mapping,
 	return 0;
 }
 
+/*
+ * Display the mount options in /proc/mounts.
+ */
+static int hugetlbfs_show_options(struct seq_file *m, struct dentry *root)
+{
+	struct hugetlbfs_sb_info *sbinfo = HUGETLBFS_SB(root->d_sb);
+	struct hugepage_subpool *spool = sbinfo->spool;
+	unsigned long hpage_size = huge_page_size(sbinfo->hstate);
+	unsigned hpage_shift = huge_page_shift(sbinfo->hstate);
+	char mod;
+
+	if (!uid_eq(sbinfo->uid, GLOBAL_ROOT_UID))
+		seq_printf(m, ",uid=%u",
+			   from_kuid_munged(&init_user_ns, sbinfo->uid));
+	if (!gid_eq(sbinfo->gid, GLOBAL_ROOT_GID))
+		seq_printf(m, ",gid=%u",
+			   from_kgid_munged(&init_user_ns, sbinfo->gid));
+	if (sbinfo->mode != 0755)
+		seq_printf(m, ",mode=%o", sbinfo->mode);
+	if (sbinfo->max_inodes != -1)
+		seq_printf(m, ",nr_inodes=%lu", sbinfo->max_inodes);
+
+	hpage_size /= 1024;
+	mod = 'K';
+	if (hpage_size >= 1024) {
+		hpage_size /= 1024;
+		mod = 'M';
+	}
+	seq_printf(m, ",pagesize=%lu%c", hpage_size, mod);
+	if (spool) {
+		if (spool->max_hpages != -1)
+			seq_printf(m, ",size=%llu",
+				   (unsigned long long)spool->max_hpages << hpage_shift);
+		if (spool->min_hpages != -1)
+			seq_printf(m, ",min_size=%llu",
+				   (unsigned long long)spool->min_hpages << hpage_shift);
+	}
+	return 0;
+}
+
 static int hugetlbfs_statfs(struct dentry *dentry, struct kstatfs *buf)
 {
 	struct hugetlbfs_sb_info *sbinfo = HUGETLBFS_SB(dentry->d_sb);
@@ -1019,19 +1059,19 @@ static const struct super_operations hugetlbfs_ops = {
 	.evict_inode	= hugetlbfs_evict_inode,
 	.statfs		= hugetlbfs_statfs,
 	.put_super	= hugetlbfs_put_super,
-	.show_options	= generic_show_options,
+	.show_options	= hugetlbfs_show_options,
 };
 
-enum { NO_SIZE, SIZE_STD, SIZE_PERCENT };
+enum hugetlbfs_size_type { NO_SIZE, SIZE_STD, SIZE_PERCENT };
 
 /*
  * Convert size option passed from command line to number of huge pages
  * in the pool specified by hstate.  Size option could be in bytes
  * (val_type == SIZE_STD) or percentage of the pool (val_type == SIZE_PERCENT).
  */
-static long long
+static long
 hugetlbfs_size_to_hpages(struct hstate *h, unsigned long long size_opt,
-								int val_type)
+			 enum hugetlbfs_size_type val_type)
 {
 	if (val_type == NO_SIZE)
 		return -1;
@@ -1053,7 +1093,7 @@ hugetlbfs_parse_options(char *options, struct hugetlbfs_config *pconfig)
 	substring_t args[MAX_OPT_ARGS];
 	int option;
 	unsigned long long max_size_opt = 0, min_size_opt = 0;
-	int max_val_type = NO_SIZE, min_val_type = NO_SIZE;
+	enum hugetlbfs_size_type max_val_type = NO_SIZE, min_val_type = NO_SIZE;
 
 	if (!options)
 		return 0;
@@ -1167,8 +1207,6 @@ hugetlbfs_fill_super(struct super_block *sb, void *data, int silent)
 	struct hugetlbfs_config config;
 	struct hugetlbfs_sb_info *sbinfo;
 
-	save_mount_options(sb, data);
-
 	config.max_hpages = -1; /* No limit on size by default */
 	config.nr_inodes = -1; /* No limit on number of inodes by default */
 	config.uid = current_fsuid();
@@ -1189,6 +1227,10 @@ hugetlbfs_fill_super(struct super_block *sb, void *data, int silent)
 	sbinfo->max_inodes = config.nr_inodes;
 	sbinfo->free_inodes = config.nr_inodes;
 	sbinfo->spool = NULL;
+	sbinfo->uid = config.uid;
+	sbinfo->gid = config.gid;
+	sbinfo->mode = config.mode;
+
 	/*
 	 * Allocate and initialize subpool if maximum or minimum size is
 	 * specified.  Any needed reservations (for minimim size) are taken
diff --git a/fs/iomap.c b/fs/iomap.c
index 173222863aca..59cc98ad7577 100644
--- a/fs/iomap.c
+++ b/fs/iomap.c
@@ -278,7 +278,7 @@ iomap_dirty_actor(struct inode *inode, loff_t pos, loff_t length, void *data,
 		unsigned long bytes;	/* Bytes to write to page */
 
 		offset = (pos & (PAGE_SIZE - 1));
-		bytes = min_t(unsigned long, PAGE_SIZE - offset, length);
+		bytes = min_t(loff_t, PAGE_SIZE - offset, length);
 
 		rpage = __iomap_read_page(inode, pos);
 		if (IS_ERR(rpage))
@@ -373,7 +373,7 @@ iomap_zero_range_actor(struct inode *inode, loff_t pos, loff_t count,
 		unsigned offset, bytes;
 
 		offset = pos & (PAGE_SIZE - 1); /* Within page */
-		bytes = min_t(unsigned, PAGE_SIZE - offset, count);
+		bytes = min_t(loff_t, PAGE_SIZE - offset, count);
 
 		if (IS_DAX(inode))
 			status = iomap_dax_zero(pos, offset, bytes, iomap);
@@ -610,8 +610,8 @@ iomap_seek_hole(struct inode *inode, loff_t offset, const struct iomap_ops *ops)
 	loff_t length = size - offset;
 	loff_t ret;
 
-	/* Nothing to be found beyond the end of the file. */
-	if (offset >= size)
+	/* Nothing to be found before or beyond the end of the file. */
+	if (offset < 0 || offset >= size)
 		return -ENXIO;
 
 	while (length > 0) {
@@ -656,8 +656,8 @@ iomap_seek_data(struct inode *inode, loff_t offset, const struct iomap_ops *ops)
 	loff_t length = size - offset;
 	loff_t ret;
 
-	/* Nothing to be found beyond the end of the file. */
-	if (offset >= size)
+	/* Nothing to be found before or beyond the end of the file. */
+	if (offset < 0 || offset >= size)
 		return -ENXIO;
 
 	while (length > 0) {
diff --git a/fs/isofs/inode.c b/fs/isofs/inode.c
index 020ba0936146..217a5e7815da 100644
--- a/fs/isofs/inode.c
+++ b/fs/isofs/inode.c
@@ -23,6 +23,7 @@
 #include <linux/parser.h>
 #include <linux/mpage.h>
 #include <linux/user_namespace.h>
+#include <linux/seq_file.h>
 
 #include "isofs.h"
 #include "zisofs.h"
@@ -57,6 +58,7 @@ static void isofs_put_super(struct super_block *sb)
 
 static int isofs_read_inode(struct inode *, int relocated);
 static int isofs_statfs (struct dentry *, struct kstatfs *);
+static int isofs_show_options(struct seq_file *, struct dentry *);
 
 static struct kmem_cache *isofs_inode_cachep;
 
@@ -123,7 +125,7 @@ static const struct super_operations isofs_sops = {
 	.put_super	= isofs_put_super,
 	.statfs		= isofs_statfs,
 	.remount_fs	= isofs_remount,
-	.show_options	= generic_show_options,
+	.show_options	= isofs_show_options,
 };
 
 
@@ -408,7 +410,11 @@ static int parse_options(char *options, struct iso9660_options *popt)
 			if (match_int(&args[0], &option))
 				return 0;
 			n = option;
-			if (n > 99)
+			/*
+			 * Track numbers are supposed to be in range 1-99, the
+			 * mount option starts indexing at 0.
+			 */
+			if (n >= 99)
 				return 0;
 			popt->session = n + 1;
 			break;
@@ -473,6 +479,48 @@ static int parse_options(char *options, struct iso9660_options *popt)
 }
 
 /*
+ * Display the mount options in /proc/mounts.
+ */
+static int isofs_show_options(struct seq_file *m, struct dentry *root)
+{
+	struct isofs_sb_info *sbi = ISOFS_SB(root->d_sb);
+
+	if (!sbi->s_rock)		seq_puts(m, ",norock");
+	else if (!sbi->s_joliet_level)	seq_puts(m, ",nojoliet");
+	if (sbi->s_cruft)		seq_puts(m, ",cruft");
+	if (sbi->s_hide)		seq_puts(m, ",hide");
+	if (sbi->s_nocompress)		seq_puts(m, ",nocompress");
+	if (sbi->s_overriderockperm)	seq_puts(m, ",overriderockperm");
+	if (sbi->s_showassoc)		seq_puts(m, ",showassoc");
+	if (sbi->s_utf8)		seq_puts(m, ",utf8");
+
+	if (sbi->s_check)		seq_printf(m, ",check=%c", sbi->s_check);
+	if (sbi->s_mapping)		seq_printf(m, ",map=%c", sbi->s_mapping);
+	if (sbi->s_session != 255)	seq_printf(m, ",session=%u", sbi->s_session - 1);
+	if (sbi->s_sbsector != -1)	seq_printf(m, ",sbsector=%u", sbi->s_sbsector);
+
+	if (root->d_sb->s_blocksize != 1024)
+		seq_printf(m, ",blocksize=%lu", root->d_sb->s_blocksize);
+
+	if (sbi->s_uid_set)
+		seq_printf(m, ",uid=%u",
+			   from_kuid_munged(&init_user_ns, sbi->s_uid));
+	if (sbi->s_gid_set)
+		seq_printf(m, ",gid=%u",
+			   from_kgid_munged(&init_user_ns, sbi->s_gid));
+
+	if (sbi->s_dmode != ISOFS_INVALID_MODE)
+		seq_printf(m, ",dmode=%o", sbi->s_dmode);
+	if (sbi->s_fmode != ISOFS_INVALID_MODE)
+		seq_printf(m, ",fmode=%o", sbi->s_fmode);
+
+	if (sbi->s_nls_iocharset &&
+	    strcmp(sbi->s_nls_iocharset->charset, CONFIG_NLS_DEFAULT) != 0)
+		seq_printf(m, ",iocharset=%s", sbi->s_nls_iocharset->charset);
+	return 0;
+}
+
+/*
  * look if the driver can tell the multi session redirection value
  *
  * don't change this if you don't know what you do, please!
@@ -499,7 +547,7 @@ static unsigned int isofs_get_last_session(struct super_block *sb, s32 session)
 
 	vol_desc_start=0;
 	ms_info.addr_format=CDROM_LBA;
-	if(session >= 0 && session <= 99) {
+	if (session > 0) {
 		struct cdrom_tocentry Te;
 		Te.cdte_track=session;
 		Te.cdte_format=CDROM_LBA;
@@ -583,8 +631,6 @@ static int isofs_fill_super(struct super_block *s, void *data, int silent)
 	int table, error = -EINVAL;
 	unsigned int vol_desc_start;
 
-	save_mount_options(s, data);
-
 	sbi = kzalloc(sizeof(*sbi), GFP_KERNEL);
 	if (!sbi)
 		return -ENOMEM;
@@ -605,6 +651,8 @@ static int isofs_fill_super(struct super_block *s, void *data, int silent)
 	opt.blocksize = sb_min_blocksize(s, opt.blocksize);
 
 	sbi->s_high_sierra = 0; /* default is iso9660 */
+	sbi->s_session = opt.session;
+	sbi->s_sbsector = opt.sbsector;
 
 	vol_desc_start = (opt.sbsector != -1) ?
 		opt.sbsector : isofs_get_last_session(s,opt.session);
@@ -911,6 +959,7 @@ root_found:
 		table += 2;
 	if (opt.check == 'r')
 		table++;
+	sbi->s_check = opt.check;
 
 	if (table)
 		s->s_d_op = &isofs_dentry_ops[table - 1];
diff --git a/fs/isofs/isofs.h b/fs/isofs/isofs.h
index 0ac4c1f73fbd..133a456b0425 100644
--- a/fs/isofs/isofs.h
+++ b/fs/isofs/isofs.h
@@ -36,8 +36,11 @@ struct isofs_sb_info {
 	unsigned long s_max_size;
 	
 	int           s_rock_offset; /* offset of SUSP fields within SU area */
+	s32           s_sbsector;
 	unsigned char s_joliet_level;
 	unsigned char s_mapping;
+	unsigned char s_check;
+	unsigned char s_session;
 	unsigned int  s_high_sierra:1;
 	unsigned int  s_rock:2;
 	unsigned int  s_utf8:1;
diff --git a/fs/jfs/acl.c b/fs/jfs/acl.c
index 7bc186f4ed4d..2e71b6e7e646 100644
--- a/fs/jfs/acl.c
+++ b/fs/jfs/acl.c
@@ -77,13 +77,6 @@ static int __jfs_set_acl(tid_t tid, struct inode *inode, int type,
 	switch (type) {
 	case ACL_TYPE_ACCESS:
 		ea_name = XATTR_NAME_POSIX_ACL_ACCESS;
-		if (acl) {
-			rc = posix_acl_update_mode(inode, &inode->i_mode, &acl);
-			if (rc)
-				return rc;
-			inode->i_ctime = current_time(inode);
-			mark_inode_dirty(inode);
-		}
 		break;
 	case ACL_TYPE_DEFAULT:
 		ea_name = XATTR_NAME_POSIX_ACL_DEFAULT;
@@ -115,12 +108,27 @@ int jfs_set_acl(struct inode *inode, struct posix_acl *acl, int type)
 {
 	int rc;
 	tid_t tid;
+	int update_mode = 0;
+	umode_t mode = inode->i_mode;
 
 	tid = txBegin(inode->i_sb, 0);
 	mutex_lock(&JFS_IP(inode)->commit_mutex);
+	if (type == ACL_TYPE_ACCESS && acl) {
+		rc = posix_acl_update_mode(inode, &mode, &acl);
+		if (rc)
+			goto end_tx;
+		update_mode = 1;
+	}
 	rc = __jfs_set_acl(tid, inode, type, acl);
-	if (!rc)
+	if (!rc) {
+		if (update_mode) {
+			inode->i_mode = mode;
+			inode->i_ctime = current_time(inode);
+			mark_inode_dirty(inode);
+		}
 		rc = txCommit(tid, 1, &inode, 0);
+	}
+end_tx:
 	txEnd(tid);
 	mutex_unlock(&JFS_IP(inode)->commit_mutex);
 	return rc;
diff --git a/fs/jfs/resize.c b/fs/jfs/resize.c
index bd9b641ada2c..7ddcb445a3d9 100644
--- a/fs/jfs/resize.c
+++ b/fs/jfs/resize.c
@@ -98,7 +98,7 @@ int jfs_extendfs(struct super_block *sb, s64 newLVSize, int newLogSize)
 		goto out;
 	}
 
-	VolumeSize = sb->s_bdev->bd_inode->i_size >> sb->s_blocksize_bits;
+	VolumeSize = i_size_read(sb->s_bdev->bd_inode) >> sb->s_blocksize_bits;
 
 	if (VolumeSize) {
 		if (newLVSize > VolumeSize) {
@@ -211,7 +211,7 @@ int jfs_extendfs(struct super_block *sb, s64 newLVSize, int newLogSize)
 	txQuiesce(sb);
 
 	/* Reset size of direct inode */
-	sbi->direct_inode->i_size =  sb->s_bdev->bd_inode->i_size;
+	sbi->direct_inode->i_size =  i_size_read(sb->s_bdev->bd_inode);
 
 	if (sbi->mntflag & JFS_INLINELOG) {
 		/*
diff --git a/fs/jfs/super.c b/fs/jfs/super.c
index e8aad7d87b8c..78b41e1d5c67 100644
--- a/fs/jfs/super.c
+++ b/fs/jfs/super.c
@@ -313,7 +313,7 @@ static int parse_options(char *options, struct super_block *sb, s64 *newLVSize,
 		}
 		case Opt_resize_nosize:
 		{
-			*newLVSize = sb->s_bdev->bd_inode->i_size >>
+			*newLVSize = i_size_read(sb->s_bdev->bd_inode) >>
 				sb->s_blocksize_bits;
 			if (*newLVSize == 0)
 				pr_err("JFS: Cannot determine volume size\n");
@@ -579,7 +579,7 @@ static int jfs_fill_super(struct super_block *sb, void *data, int silent)
 		goto out_unload;
 	}
 	inode->i_ino = 0;
-	inode->i_size = sb->s_bdev->bd_inode->i_size;
+	inode->i_size = i_size_read(sb->s_bdev->bd_inode);
 	inode->i_mapping->a_ops = &jfs_metapage_aops;
 	hlist_add_fake(&inode->i_hash);
 	mapping_set_gfp_mask(inode->i_mapping, GFP_NOFS);
diff --git a/fs/lockd/clnt4xdr.c b/fs/lockd/clnt4xdr.c
index d3e40db28930..c349fc0f9b80 100644
--- a/fs/lockd/clnt4xdr.c
+++ b/fs/lockd/clnt4xdr.c
@@ -381,8 +381,9 @@ static void encode_nlm4_lock(struct xdr_stream *xdr,
  */
 static void nlm4_xdr_enc_testargs(struct rpc_rqst *req,
 				  struct xdr_stream *xdr,
-				  const struct nlm_args *args)
+				  const void *data)
 {
+	const struct nlm_args *args = data;
 	const struct nlm_lock *lock = &args->lock;
 
 	encode_cookie(xdr, &args->cookie);
@@ -402,8 +403,9 @@ static void nlm4_xdr_enc_testargs(struct rpc_rqst *req,
  */
 static void nlm4_xdr_enc_lockargs(struct rpc_rqst *req,
 				  struct xdr_stream *xdr,
-				  const struct nlm_args *args)
+				  const void *data)
 {
+	const struct nlm_args *args = data;
 	const struct nlm_lock *lock = &args->lock;
 
 	encode_cookie(xdr, &args->cookie);
@@ -424,8 +426,9 @@ static void nlm4_xdr_enc_lockargs(struct rpc_rqst *req,
  */
 static void nlm4_xdr_enc_cancargs(struct rpc_rqst *req,
 				  struct xdr_stream *xdr,
-				  const struct nlm_args *args)
+				  const void *data)
 {
+	const struct nlm_args *args = data;
 	const struct nlm_lock *lock = &args->lock;
 
 	encode_cookie(xdr, &args->cookie);
@@ -442,8 +445,9 @@ static void nlm4_xdr_enc_cancargs(struct rpc_rqst *req,
  */
 static void nlm4_xdr_enc_unlockargs(struct rpc_rqst *req,
 				    struct xdr_stream *xdr,
-				    const struct nlm_args *args)
+				    const void *data)
 {
+	const struct nlm_args *args = data;
 	const struct nlm_lock *lock = &args->lock;
 
 	encode_cookie(xdr, &args->cookie);
@@ -458,8 +462,10 @@ static void nlm4_xdr_enc_unlockargs(struct rpc_rqst *req,
  */
 static void nlm4_xdr_enc_res(struct rpc_rqst *req,
 			     struct xdr_stream *xdr,
-			     const struct nlm_res *result)
+			     const void *data)
 {
+	const struct nlm_res *result = data;
+
 	encode_cookie(xdr, &result->cookie);
 	encode_nlm4_stat(xdr, result->status);
 }
@@ -479,8 +485,10 @@ static void nlm4_xdr_enc_res(struct rpc_rqst *req,
  */
 static void nlm4_xdr_enc_testres(struct rpc_rqst *req,
 				 struct xdr_stream *xdr,
-				 const struct nlm_res *result)
+				 const void *data)
 {
+	const struct nlm_res *result = data;
+
 	encode_cookie(xdr, &result->cookie);
 	encode_nlm4_stat(xdr, result->status);
 	if (result->status == nlm_lck_denied)
@@ -525,8 +533,9 @@ out:
 
 static int nlm4_xdr_dec_testres(struct rpc_rqst *req,
 				struct xdr_stream *xdr,
-				struct nlm_res *result)
+				void *data)
 {
+	struct nlm_res *result = data;
 	int error;
 
 	error = decode_cookie(xdr, &result->cookie);
@@ -545,8 +554,9 @@ out:
  */
 static int nlm4_xdr_dec_res(struct rpc_rqst *req,
 			    struct xdr_stream *xdr,
-			    struct nlm_res *result)
+			    void *data)
 {
+	struct nlm_res *result = data;
 	int error;
 
 	error = decode_cookie(xdr, &result->cookie);
@@ -566,15 +576,15 @@ out:
 #define PROC(proc, argtype, restype)					\
 [NLMPROC_##proc] = {							\
 	.p_proc      = NLMPROC_##proc,					\
-	.p_encode    = (kxdreproc_t)nlm4_xdr_enc_##argtype,		\
-	.p_decode    = (kxdrdproc_t)nlm4_xdr_dec_##restype,		\
+	.p_encode    = nlm4_xdr_enc_##argtype,				\
+	.p_decode    = nlm4_xdr_dec_##restype,				\
 	.p_arglen    = NLM4_##argtype##_sz,				\
 	.p_replen    = NLM4_##restype##_sz,				\
 	.p_statidx   = NLMPROC_##proc,					\
 	.p_name      = #proc,						\
 	}
 
-static struct rpc_procinfo	nlm4_procedures[] = {
+static const struct rpc_procinfo nlm4_procedures[] = {
 	PROC(TEST,		testargs,	testres),
 	PROC(LOCK,		lockargs,	res),
 	PROC(CANCEL,		cancargs,	res),
@@ -592,8 +602,10 @@ static struct rpc_procinfo	nlm4_procedures[] = {
 	PROC(GRANTED_RES,	res,		norep),
 };
 
+static unsigned int nlm_version4_counts[ARRAY_SIZE(nlm4_procedures)];
 const struct rpc_version nlm_version4 = {
 	.number		= 4,
 	.nrprocs	= ARRAY_SIZE(nlm4_procedures),
 	.procs		= nlm4_procedures,
+	.counts		= nlm_version4_counts,
 };
diff --git a/fs/lockd/clntxdr.c b/fs/lockd/clntxdr.c
index 3e9f7874b975..3b4724a6c4ee 100644
--- a/fs/lockd/clntxdr.c
+++ b/fs/lockd/clntxdr.c
@@ -374,8 +374,9 @@ static void encode_nlm_lock(struct xdr_stream *xdr,
  */
 static void nlm_xdr_enc_testargs(struct rpc_rqst *req,
 				 struct xdr_stream *xdr,
-				 const struct nlm_args *args)
+				 const void *data)
 {
+	const struct nlm_args *args = data;
 	const struct nlm_lock *lock = &args->lock;
 
 	encode_cookie(xdr, &args->cookie);
@@ -395,8 +396,9 @@ static void nlm_xdr_enc_testargs(struct rpc_rqst *req,
  */
 static void nlm_xdr_enc_lockargs(struct rpc_rqst *req,
 				 struct xdr_stream *xdr,
-				 const struct nlm_args *args)
+				 const void *data)
 {
+	const struct nlm_args *args = data;
 	const struct nlm_lock *lock = &args->lock;
 
 	encode_cookie(xdr, &args->cookie);
@@ -417,8 +419,9 @@ static void nlm_xdr_enc_lockargs(struct rpc_rqst *req,
  */
 static void nlm_xdr_enc_cancargs(struct rpc_rqst *req,
 				 struct xdr_stream *xdr,
-				 const struct nlm_args *args)
+				 const void *data)
 {
+	const struct nlm_args *args = data;
 	const struct nlm_lock *lock = &args->lock;
 
 	encode_cookie(xdr, &args->cookie);
@@ -435,8 +438,9 @@ static void nlm_xdr_enc_cancargs(struct rpc_rqst *req,
  */
 static void nlm_xdr_enc_unlockargs(struct rpc_rqst *req,
 				   struct xdr_stream *xdr,
-				   const struct nlm_args *args)
+				   const void *data)
 {
+	const struct nlm_args *args = data;
 	const struct nlm_lock *lock = &args->lock;
 
 	encode_cookie(xdr, &args->cookie);
@@ -451,8 +455,10 @@ static void nlm_xdr_enc_unlockargs(struct rpc_rqst *req,
  */
 static void nlm_xdr_enc_res(struct rpc_rqst *req,
 			    struct xdr_stream *xdr,
-			    const struct nlm_res *result)
+			    const void *data)
 {
+	const struct nlm_res *result = data;
+
 	encode_cookie(xdr, &result->cookie);
 	encode_nlm_stat(xdr, result->status);
 }
@@ -479,8 +485,10 @@ static void encode_nlm_testrply(struct xdr_stream *xdr,
 
 static void nlm_xdr_enc_testres(struct rpc_rqst *req,
 				struct xdr_stream *xdr,
-				const struct nlm_res *result)
+				const void *data)
 {
+	const struct nlm_res *result = data;
+
 	encode_cookie(xdr, &result->cookie);
 	encode_nlm_stat(xdr, result->status);
 	encode_nlm_testrply(xdr, result);
@@ -523,8 +531,9 @@ out:
 
 static int nlm_xdr_dec_testres(struct rpc_rqst *req,
 			       struct xdr_stream *xdr,
-			       struct nlm_res *result)
+			       void *data)
 {
+	struct nlm_res *result = data;
 	int error;
 
 	error = decode_cookie(xdr, &result->cookie);
@@ -543,8 +552,9 @@ out:
  */
 static int nlm_xdr_dec_res(struct rpc_rqst *req,
 			   struct xdr_stream *xdr,
-			   struct nlm_res *result)
+			   void *data)
 {
+	struct nlm_res *result = data;
 	int error;
 
 	error = decode_cookie(xdr, &result->cookie);
@@ -564,15 +574,15 @@ out:
 #define PROC(proc, argtype, restype)	\
 [NLMPROC_##proc] = {							\
 	.p_proc      = NLMPROC_##proc,					\
-	.p_encode    = (kxdreproc_t)nlm_xdr_enc_##argtype,		\
-	.p_decode    = (kxdrdproc_t)nlm_xdr_dec_##restype,		\
+	.p_encode    = nlm_xdr_enc_##argtype,		\
+	.p_decode    = nlm_xdr_dec_##restype,				\
 	.p_arglen    = NLM_##argtype##_sz,				\
 	.p_replen    = NLM_##restype##_sz,				\
 	.p_statidx   = NLMPROC_##proc,					\
 	.p_name      = #proc,						\
 	}
 
-static struct rpc_procinfo	nlm_procedures[] = {
+static const struct rpc_procinfo nlm_procedures[] = {
 	PROC(TEST,		testargs,	testres),
 	PROC(LOCK,		lockargs,	res),
 	PROC(CANCEL,		cancargs,	res),
@@ -590,16 +600,20 @@ static struct rpc_procinfo	nlm_procedures[] = {
 	PROC(GRANTED_RES,	res,		norep),
 };
 
+static unsigned int nlm_version1_counts[ARRAY_SIZE(nlm_procedures)];
 static const struct rpc_version	nlm_version1 = {
-		.number		= 1,
-		.nrprocs	= ARRAY_SIZE(nlm_procedures),
-		.procs		= nlm_procedures,
+	.number		= 1,
+	.nrprocs	= ARRAY_SIZE(nlm_procedures),
+	.procs		= nlm_procedures,
+	.counts		= nlm_version1_counts,
 };
 
+static unsigned int nlm_version3_counts[ARRAY_SIZE(nlm_procedures)];
 static const struct rpc_version	nlm_version3 = {
-		.number		= 3,
-		.nrprocs	= ARRAY_SIZE(nlm_procedures),
-		.procs		= nlm_procedures,
+	.number		= 3,
+	.nrprocs	= ARRAY_SIZE(nlm_procedures),
+	.procs		= nlm_procedures,
+	.counts		= nlm_version3_counts,
 };
 
 static const struct rpc_version	*nlm_versions[] = {
@@ -613,9 +627,9 @@ static const struct rpc_version	*nlm_versions[] = {
 static struct rpc_stat		nlm_rpc_stats;
 
 const struct rpc_program	nlm_program = {
-		.name		= "lockd",
-		.number		= NLM_PROGRAM,
-		.nrvers		= ARRAY_SIZE(nlm_versions),
-		.version	= nlm_versions,
-		.stats		= &nlm_rpc_stats,
+	.name		= "lockd",
+	.number		= NLM_PROGRAM,
+	.nrvers		= ARRAY_SIZE(nlm_versions),
+	.version	= nlm_versions,
+	.stats		= &nlm_rpc_stats,
 };
diff --git a/fs/lockd/mon.c b/fs/lockd/mon.c
index 19166d4a8d31..9d8166c39c54 100644
--- a/fs/lockd/mon.c
+++ b/fs/lockd/mon.c
@@ -476,22 +476,23 @@ static void encode_priv(struct xdr_stream *xdr, const struct nsm_args *argp)
 }
 
 static void nsm_xdr_enc_mon(struct rpc_rqst *req, struct xdr_stream *xdr,
-			    const struct nsm_args *argp)
+			    const void *argp)
 {
 	encode_mon_id(xdr, argp);
 	encode_priv(xdr, argp);
 }
 
 static void nsm_xdr_enc_unmon(struct rpc_rqst *req, struct xdr_stream *xdr,
-			      const struct nsm_args *argp)
+			      const void *argp)
 {
 	encode_mon_id(xdr, argp);
 }
 
 static int nsm_xdr_dec_stat_res(struct rpc_rqst *rqstp,
 				struct xdr_stream *xdr,
-				struct nsm_res *resp)
+				void *data)
 {
+	struct nsm_res *resp = data;
 	__be32 *p;
 
 	p = xdr_inline_decode(xdr, 4 + 4);
@@ -507,8 +508,9 @@ static int nsm_xdr_dec_stat_res(struct rpc_rqst *rqstp,
 
 static int nsm_xdr_dec_stat(struct rpc_rqst *rqstp,
 			    struct xdr_stream *xdr,
-			    struct nsm_res *resp)
+			    void *data)
 {
+	struct nsm_res *resp = data;
 	__be32 *p;
 
 	p = xdr_inline_decode(xdr, 4);
@@ -529,11 +531,11 @@ static int nsm_xdr_dec_stat(struct rpc_rqst *rqstp,
 #define SM_monres_sz	2
 #define SM_unmonres_sz	1
 
-static struct rpc_procinfo	nsm_procedures[] = {
+static const struct rpc_procinfo nsm_procedures[] = {
 [NSMPROC_MON] = {
 		.p_proc		= NSMPROC_MON,
-		.p_encode	= (kxdreproc_t)nsm_xdr_enc_mon,
-		.p_decode	= (kxdrdproc_t)nsm_xdr_dec_stat_res,
+		.p_encode	= nsm_xdr_enc_mon,
+		.p_decode	= nsm_xdr_dec_stat_res,
 		.p_arglen	= SM_mon_sz,
 		.p_replen	= SM_monres_sz,
 		.p_statidx	= NSMPROC_MON,
@@ -541,8 +543,8 @@ static struct rpc_procinfo	nsm_procedures[] = {
 	},
 [NSMPROC_UNMON] = {
 		.p_proc		= NSMPROC_UNMON,
-		.p_encode	= (kxdreproc_t)nsm_xdr_enc_unmon,
-		.p_decode	= (kxdrdproc_t)nsm_xdr_dec_stat,
+		.p_encode	= nsm_xdr_enc_unmon,
+		.p_decode	= nsm_xdr_dec_stat,
 		.p_arglen	= SM_mon_id_sz,
 		.p_replen	= SM_unmonres_sz,
 		.p_statidx	= NSMPROC_UNMON,
@@ -550,10 +552,12 @@ static struct rpc_procinfo	nsm_procedures[] = {
 	},
 };
 
+static unsigned int nsm_version1_counts[ARRAY_SIZE(nsm_procedures)];
 static const struct rpc_version nsm_version1 = {
-		.number		= 1,
-		.nrprocs	= ARRAY_SIZE(nsm_procedures),
-		.procs		= nsm_procedures
+	.number		= 1,
+	.nrprocs	= ARRAY_SIZE(nsm_procedures),
+	.procs		= nsm_procedures,
+	.counts		= nsm_version1_counts,
 };
 
 static const struct rpc_version *nsm_version[] = {
@@ -563,9 +567,9 @@ static const struct rpc_version *nsm_version[] = {
 static struct rpc_stat		nsm_stats;
 
 static const struct rpc_program nsm_program = {
-		.name		= "statd",
-		.number		= NSM_PROGRAM,
-		.nrvers		= ARRAY_SIZE(nsm_version),
-		.version	= nsm_version,
-		.stats		= &nsm_stats
+	.name		= "statd",
+	.number		= NSM_PROGRAM,
+	.nrvers		= ARRAY_SIZE(nsm_version),
+	.version	= nsm_version,
+	.stats		= &nsm_stats
 };
diff --git a/fs/lockd/svc.c b/fs/lockd/svc.c
index 5d481e8a1b5d..726b6cecf430 100644
--- a/fs/lockd/svc.c
+++ b/fs/lockd/svc.c
@@ -739,27 +739,33 @@ module_exit(exit_nlm);
 /*
  * Define NLM program and procedures
  */
-static struct svc_version	nlmsvc_version1 = {
-		.vs_vers	= 1,
-		.vs_nproc	= 17,
-		.vs_proc	= nlmsvc_procedures,
-		.vs_xdrsize	= NLMSVC_XDRSIZE,
+static unsigned int nlmsvc_version1_count[17];
+static const struct svc_version	nlmsvc_version1 = {
+	.vs_vers	= 1,
+	.vs_nproc	= 17,
+	.vs_proc	= nlmsvc_procedures,
+	.vs_count	= nlmsvc_version1_count,
+	.vs_xdrsize	= NLMSVC_XDRSIZE,
 };
-static struct svc_version	nlmsvc_version3 = {
-		.vs_vers	= 3,
-		.vs_nproc	= 24,
-		.vs_proc	= nlmsvc_procedures,
-		.vs_xdrsize	= NLMSVC_XDRSIZE,
+static unsigned int nlmsvc_version3_count[24];
+static const struct svc_version	nlmsvc_version3 = {
+	.vs_vers	= 3,
+	.vs_nproc	= 24,
+	.vs_proc	= nlmsvc_procedures,
+	.vs_count	= nlmsvc_version3_count,
+	.vs_xdrsize	= NLMSVC_XDRSIZE,
 };
 #ifdef CONFIG_LOCKD_V4
-static struct svc_version	nlmsvc_version4 = {
-		.vs_vers	= 4,
-		.vs_nproc	= 24,
-		.vs_proc	= nlmsvc_procedures4,
-		.vs_xdrsize	= NLMSVC_XDRSIZE,
+static unsigned int nlmsvc_version4_count[24];
+static const struct svc_version	nlmsvc_version4 = {
+	.vs_vers	= 4,
+	.vs_nproc	= 24,
+	.vs_proc	= nlmsvc_procedures4,
+	.vs_count	= nlmsvc_version4_count,
+	.vs_xdrsize	= NLMSVC_XDRSIZE,
 };
 #endif
-static struct svc_version *	nlmsvc_version[] = {
+static const struct svc_version *nlmsvc_version[] = {
 	[1] = &nlmsvc_version1,
 	[3] = &nlmsvc_version3,
 #ifdef CONFIG_LOCKD_V4
diff --git a/fs/lockd/svc4proc.c b/fs/lockd/svc4proc.c
index 09c576f26c7b..82925f17ec45 100644
--- a/fs/lockd/svc4proc.c
+++ b/fs/lockd/svc4proc.c
@@ -62,7 +62,7 @@ no_locks:
  * NULL: Test for presence of service
  */
 static __be32
-nlm4svc_proc_null(struct svc_rqst *rqstp, void *argp, void *resp)
+nlm4svc_proc_null(struct svc_rqst *rqstp)
 {
 	dprintk("lockd: NULL          called\n");
 	return rpc_success;
@@ -72,9 +72,9 @@ nlm4svc_proc_null(struct svc_rqst *rqstp, void *argp, void *resp)
  * TEST: Check for conflicting lock
  */
 static __be32
-nlm4svc_proc_test(struct svc_rqst *rqstp, struct nlm_args *argp,
-				         struct nlm_res  *resp)
+__nlm4svc_proc_test(struct svc_rqst *rqstp, struct nlm_res *resp)
 {
+	struct nlm_args *argp = rqstp->rq_argp;
 	struct nlm_host	*host;
 	struct nlm_file	*file;
 	__be32 rc = rpc_success;
@@ -99,9 +99,15 @@ nlm4svc_proc_test(struct svc_rqst *rqstp, struct nlm_args *argp,
 }
 
 static __be32
-nlm4svc_proc_lock(struct svc_rqst *rqstp, struct nlm_args *argp,
-				         struct nlm_res  *resp)
+nlm4svc_proc_test(struct svc_rqst *rqstp)
 {
+	return __nlm4svc_proc_test(rqstp, rqstp->rq_resp);
+}
+
+static __be32
+__nlm4svc_proc_lock(struct svc_rqst *rqstp, struct nlm_res *resp)
+{
+	struct nlm_args *argp = rqstp->rq_argp;
 	struct nlm_host	*host;
 	struct nlm_file	*file;
 	__be32 rc = rpc_success;
@@ -141,9 +147,15 @@ nlm4svc_proc_lock(struct svc_rqst *rqstp, struct nlm_args *argp,
 }
 
 static __be32
-nlm4svc_proc_cancel(struct svc_rqst *rqstp, struct nlm_args *argp,
-				           struct nlm_res  *resp)
+nlm4svc_proc_lock(struct svc_rqst *rqstp)
+{
+	return __nlm4svc_proc_lock(rqstp, rqstp->rq_resp);
+}
+
+static __be32
+__nlm4svc_proc_cancel(struct svc_rqst *rqstp, struct nlm_res *resp)
 {
+	struct nlm_args *argp = rqstp->rq_argp;
 	struct nlm_host	*host;
 	struct nlm_file	*file;
 
@@ -170,13 +182,19 @@ nlm4svc_proc_cancel(struct svc_rqst *rqstp, struct nlm_args *argp,
 	return rpc_success;
 }
 
+static __be32
+nlm4svc_proc_cancel(struct svc_rqst *rqstp)
+{
+	return __nlm4svc_proc_cancel(rqstp, rqstp->rq_resp);
+}
+
 /*
  * UNLOCK: release a lock
  */
 static __be32
-nlm4svc_proc_unlock(struct svc_rqst *rqstp, struct nlm_args *argp,
-				           struct nlm_res  *resp)
+__nlm4svc_proc_unlock(struct svc_rqst *rqstp, struct nlm_res *resp)
 {
+	struct nlm_args *argp = rqstp->rq_argp;
 	struct nlm_host	*host;
 	struct nlm_file	*file;
 
@@ -203,14 +221,21 @@ nlm4svc_proc_unlock(struct svc_rqst *rqstp, struct nlm_args *argp,
 	return rpc_success;
 }
 
+static __be32
+nlm4svc_proc_unlock(struct svc_rqst *rqstp)
+{
+	return __nlm4svc_proc_unlock(rqstp, rqstp->rq_resp);
+}
+
 /*
  * GRANTED: A server calls us to tell that a process' lock request
  * was granted
  */
 static __be32
-nlm4svc_proc_granted(struct svc_rqst *rqstp, struct nlm_args *argp,
-				            struct nlm_res  *resp)
+__nlm4svc_proc_granted(struct svc_rqst *rqstp, struct nlm_res *resp)
 {
+	struct nlm_args *argp = rqstp->rq_argp;
+
 	resp->cookie = argp->cookie;
 
 	dprintk("lockd: GRANTED       called\n");
@@ -219,6 +244,12 @@ nlm4svc_proc_granted(struct svc_rqst *rqstp, struct nlm_args *argp,
 	return rpc_success;
 }
 
+static __be32
+nlm4svc_proc_granted(struct svc_rqst *rqstp)
+{
+	return __nlm4svc_proc_granted(rqstp, rqstp->rq_resp);
+}
+
 /*
  * This is the generic lockd callback for async RPC calls
  */
@@ -243,9 +274,10 @@ static const struct rpc_call_ops nlm4svc_callback_ops = {
  * because we send the callback before the reply proper. I hope this
  * doesn't break any clients.
  */
-static __be32 nlm4svc_callback(struct svc_rqst *rqstp, u32 proc, struct nlm_args *argp,
-		__be32 (*func)(struct svc_rqst *, struct nlm_args *, struct nlm_res  *))
+static __be32 nlm4svc_callback(struct svc_rqst *rqstp, u32 proc,
+		__be32 (*func)(struct svc_rqst *,  struct nlm_res *))
 {
+	struct nlm_args *argp = rqstp->rq_argp;
 	struct nlm_host	*host;
 	struct nlm_rqst	*call;
 	__be32 stat;
@@ -261,7 +293,7 @@ static __be32 nlm4svc_callback(struct svc_rqst *rqstp, u32 proc, struct nlm_args
 	if (call == NULL)
 		return rpc_system_err;
 
-	stat = func(rqstp, argp, &call->a_res);
+	stat = func(rqstp, &call->a_res);
 	if (stat != 0) {
 		nlmsvc_release_call(call);
 		return stat;
@@ -273,48 +305,44 @@ static __be32 nlm4svc_callback(struct svc_rqst *rqstp, u32 proc, struct nlm_args
 	return rpc_success;
 }
 
-static __be32 nlm4svc_proc_test_msg(struct svc_rqst *rqstp, struct nlm_args *argp,
-					     void	     *resp)
+static __be32 nlm4svc_proc_test_msg(struct svc_rqst *rqstp)
 {
 	dprintk("lockd: TEST_MSG      called\n");
-	return nlm4svc_callback(rqstp, NLMPROC_TEST_RES, argp, nlm4svc_proc_test);
+	return nlm4svc_callback(rqstp, NLMPROC_TEST_RES, __nlm4svc_proc_test);
 }
 
-static __be32 nlm4svc_proc_lock_msg(struct svc_rqst *rqstp, struct nlm_args *argp,
-					     void	     *resp)
+static __be32 nlm4svc_proc_lock_msg(struct svc_rqst *rqstp)
 {
 	dprintk("lockd: LOCK_MSG      called\n");
-	return nlm4svc_callback(rqstp, NLMPROC_LOCK_RES, argp, nlm4svc_proc_lock);
+	return nlm4svc_callback(rqstp, NLMPROC_LOCK_RES, __nlm4svc_proc_lock);
 }
 
-static __be32 nlm4svc_proc_cancel_msg(struct svc_rqst *rqstp, struct nlm_args *argp,
-					       void	       *resp)
+static __be32 nlm4svc_proc_cancel_msg(struct svc_rqst *rqstp)
 {
 	dprintk("lockd: CANCEL_MSG    called\n");
-	return nlm4svc_callback(rqstp, NLMPROC_CANCEL_RES, argp, nlm4svc_proc_cancel);
+	return nlm4svc_callback(rqstp, NLMPROC_CANCEL_RES, __nlm4svc_proc_cancel);
 }
 
-static __be32 nlm4svc_proc_unlock_msg(struct svc_rqst *rqstp, struct nlm_args *argp,
-                                               void            *resp)
+static __be32 nlm4svc_proc_unlock_msg(struct svc_rqst *rqstp)
 {
 	dprintk("lockd: UNLOCK_MSG    called\n");
-	return nlm4svc_callback(rqstp, NLMPROC_UNLOCK_RES, argp, nlm4svc_proc_unlock);
+	return nlm4svc_callback(rqstp, NLMPROC_UNLOCK_RES, __nlm4svc_proc_unlock);
 }
 
-static __be32 nlm4svc_proc_granted_msg(struct svc_rqst *rqstp, struct nlm_args *argp,
-                                                void            *resp)
+static __be32 nlm4svc_proc_granted_msg(struct svc_rqst *rqstp)
 {
 	dprintk("lockd: GRANTED_MSG   called\n");
-	return nlm4svc_callback(rqstp, NLMPROC_GRANTED_RES, argp, nlm4svc_proc_granted);
+	return nlm4svc_callback(rqstp, NLMPROC_GRANTED_RES, __nlm4svc_proc_granted);
 }
 
 /*
  * SHARE: create a DOS share or alter existing share.
  */
 static __be32
-nlm4svc_proc_share(struct svc_rqst *rqstp, struct nlm_args *argp,
-				          struct nlm_res  *resp)
+nlm4svc_proc_share(struct svc_rqst *rqstp)
 {
+	struct nlm_args *argp = rqstp->rq_argp;
+	struct nlm_res *resp = rqstp->rq_resp;
 	struct nlm_host	*host;
 	struct nlm_file	*file;
 
@@ -345,9 +373,10 @@ nlm4svc_proc_share(struct svc_rqst *rqstp, struct nlm_args *argp,
  * UNSHARE: Release a DOS share.
  */
 static __be32
-nlm4svc_proc_unshare(struct svc_rqst *rqstp, struct nlm_args *argp,
-				            struct nlm_res  *resp)
+nlm4svc_proc_unshare(struct svc_rqst *rqstp)
 {
+	struct nlm_args *argp = rqstp->rq_argp;
+	struct nlm_res *resp = rqstp->rq_resp;
 	struct nlm_host	*host;
 	struct nlm_file	*file;
 
@@ -378,22 +407,23 @@ nlm4svc_proc_unshare(struct svc_rqst *rqstp, struct nlm_args *argp,
  * NM_LOCK: Create an unmonitored lock
  */
 static __be32
-nlm4svc_proc_nm_lock(struct svc_rqst *rqstp, struct nlm_args *argp,
-				            struct nlm_res  *resp)
+nlm4svc_proc_nm_lock(struct svc_rqst *rqstp)
 {
+	struct nlm_args *argp = rqstp->rq_argp;
+
 	dprintk("lockd: NM_LOCK       called\n");
 
 	argp->monitor = 0;		/* just clean the monitor flag */
-	return nlm4svc_proc_lock(rqstp, argp, resp);
+	return nlm4svc_proc_lock(rqstp);
 }
 
 /*
  * FREE_ALL: Release all locks and shares held by client
  */
 static __be32
-nlm4svc_proc_free_all(struct svc_rqst *rqstp, struct nlm_args *argp,
-					     void            *resp)
+nlm4svc_proc_free_all(struct svc_rqst *rqstp)
 {
+	struct nlm_args *argp = rqstp->rq_argp;
 	struct nlm_host	*host;
 
 	/* Obtain client */
@@ -409,9 +439,10 @@ nlm4svc_proc_free_all(struct svc_rqst *rqstp, struct nlm_args *argp,
  * SM_NOTIFY: private callback from statd (not part of official NLM proto)
  */
 static __be32
-nlm4svc_proc_sm_notify(struct svc_rqst *rqstp, struct nlm_reboot *argp,
-					      void	        *resp)
+nlm4svc_proc_sm_notify(struct svc_rqst *rqstp)
 {
+	struct nlm_reboot *argp = rqstp->rq_argp;
+
 	dprintk("lockd: SM_NOTIFY     called\n");
 
 	if (!nlm_privileged_requester(rqstp)) {
@@ -429,9 +460,10 @@ nlm4svc_proc_sm_notify(struct svc_rqst *rqstp, struct nlm_reboot *argp,
  * client sent a GRANTED_RES, let's remove the associated block
  */
 static __be32
-nlm4svc_proc_granted_res(struct svc_rqst *rqstp, struct nlm_res  *argp,
-                                                void            *resp)
+nlm4svc_proc_granted_res(struct svc_rqst *rqstp)
 {
+	struct nlm_res *argp = rqstp->rq_argp;
+
         if (!nlmsvc_ops)
                 return rpc_success;
 
@@ -463,9 +495,9 @@ nlm4svc_proc_granted_res(struct svc_rqst *rqstp, struct nlm_res  *argp,
 struct nlm_void			{ int dummy; };
 
 #define PROC(name, xargt, xrest, argt, rest, respsize)	\
- { .pc_func	= (svc_procfunc) nlm4svc_proc_##name,	\
-   .pc_decode	= (kxdrproc_t) nlm4svc_decode_##xargt,	\
-   .pc_encode	= (kxdrproc_t) nlm4svc_encode_##xrest,	\
+ { .pc_func	= nlm4svc_proc_##name,	\
+   .pc_decode	= nlm4svc_decode_##xargt,	\
+   .pc_encode	= nlm4svc_encode_##xrest,	\
    .pc_release	= NULL,					\
    .pc_argsize	= sizeof(struct nlm_##argt),		\
    .pc_ressize	= sizeof(struct nlm_##rest),		\
@@ -475,7 +507,7 @@ struct nlm_void			{ int dummy; };
 #define	No	(1+1024/4)				/* netobj */
 #define	St	1					/* status */
 #define	Rg	4					/* range (offset + length) */
-struct svc_procedure		nlmsvc_procedures4[] = {
+const struct svc_procedure nlmsvc_procedures4[] = {
   PROC(null,		void,		void,		void,	void, 1),
   PROC(test,		testargs,	testres,	args,	res, Ck+St+2+No+Rg),
   PROC(lock,		lockargs,	res,		args,	res, Ck+St),
diff --git a/fs/lockd/svcproc.c b/fs/lockd/svcproc.c
index fb26b9f522e7..07915162581d 100644
--- a/fs/lockd/svcproc.c
+++ b/fs/lockd/svcproc.c
@@ -92,7 +92,7 @@ no_locks:
  * NULL: Test for presence of service
  */
 static __be32
-nlmsvc_proc_null(struct svc_rqst *rqstp, void *argp, void *resp)
+nlmsvc_proc_null(struct svc_rqst *rqstp)
 {
 	dprintk("lockd: NULL          called\n");
 	return rpc_success;
@@ -102,9 +102,9 @@ nlmsvc_proc_null(struct svc_rqst *rqstp, void *argp, void *resp)
  * TEST: Check for conflicting lock
  */
 static __be32
-nlmsvc_proc_test(struct svc_rqst *rqstp, struct nlm_args *argp,
-				         struct nlm_res  *resp)
+__nlmsvc_proc_test(struct svc_rqst *rqstp, struct nlm_res *resp)
 {
+	struct nlm_args *argp = rqstp->rq_argp;
 	struct nlm_host	*host;
 	struct nlm_file	*file;
 	__be32 rc = rpc_success;
@@ -130,9 +130,15 @@ nlmsvc_proc_test(struct svc_rqst *rqstp, struct nlm_args *argp,
 }
 
 static __be32
-nlmsvc_proc_lock(struct svc_rqst *rqstp, struct nlm_args *argp,
-				         struct nlm_res  *resp)
+nlmsvc_proc_test(struct svc_rqst *rqstp)
 {
+	return __nlmsvc_proc_test(rqstp, rqstp->rq_resp);
+}
+
+static __be32
+__nlmsvc_proc_lock(struct svc_rqst *rqstp, struct nlm_res *resp)
+{
+	struct nlm_args *argp = rqstp->rq_argp;
 	struct nlm_host	*host;
 	struct nlm_file	*file;
 	__be32 rc = rpc_success;
@@ -172,9 +178,15 @@ nlmsvc_proc_lock(struct svc_rqst *rqstp, struct nlm_args *argp,
 }
 
 static __be32
-nlmsvc_proc_cancel(struct svc_rqst *rqstp, struct nlm_args *argp,
-				           struct nlm_res  *resp)
+nlmsvc_proc_lock(struct svc_rqst *rqstp)
+{
+	return __nlmsvc_proc_lock(rqstp, rqstp->rq_resp);
+}
+
+static __be32
+__nlmsvc_proc_cancel(struct svc_rqst *rqstp, struct nlm_res *resp)
 {
+	struct nlm_args *argp = rqstp->rq_argp;
 	struct nlm_host	*host;
 	struct nlm_file	*file;
 	struct net *net = SVC_NET(rqstp);
@@ -202,13 +214,19 @@ nlmsvc_proc_cancel(struct svc_rqst *rqstp, struct nlm_args *argp,
 	return rpc_success;
 }
 
+static __be32
+nlmsvc_proc_cancel(struct svc_rqst *rqstp)
+{
+	return __nlmsvc_proc_cancel(rqstp, rqstp->rq_resp);
+}
+
 /*
  * UNLOCK: release a lock
  */
 static __be32
-nlmsvc_proc_unlock(struct svc_rqst *rqstp, struct nlm_args *argp,
-				           struct nlm_res  *resp)
+__nlmsvc_proc_unlock(struct svc_rqst *rqstp, struct nlm_res *resp)
 {
+	struct nlm_args *argp = rqstp->rq_argp;
 	struct nlm_host	*host;
 	struct nlm_file	*file;
 	struct net *net = SVC_NET(rqstp);
@@ -236,14 +254,21 @@ nlmsvc_proc_unlock(struct svc_rqst *rqstp, struct nlm_args *argp,
 	return rpc_success;
 }
 
+static __be32
+nlmsvc_proc_unlock(struct svc_rqst *rqstp)
+{
+	return __nlmsvc_proc_unlock(rqstp, rqstp->rq_resp);
+}
+
 /*
  * GRANTED: A server calls us to tell that a process' lock request
  * was granted
  */
 static __be32
-nlmsvc_proc_granted(struct svc_rqst *rqstp, struct nlm_args *argp,
-				            struct nlm_res  *resp)
+__nlmsvc_proc_granted(struct svc_rqst *rqstp, struct nlm_res *resp)
 {
+	struct nlm_args *argp = rqstp->rq_argp;
+
 	resp->cookie = argp->cookie;
 
 	dprintk("lockd: GRANTED       called\n");
@@ -252,6 +277,12 @@ nlmsvc_proc_granted(struct svc_rqst *rqstp, struct nlm_args *argp,
 	return rpc_success;
 }
 
+static __be32
+nlmsvc_proc_granted(struct svc_rqst *rqstp)
+{
+	return __nlmsvc_proc_granted(rqstp, rqstp->rq_resp);
+}
+
 /*
  * This is the generic lockd callback for async RPC calls
  */
@@ -284,9 +315,10 @@ static const struct rpc_call_ops nlmsvc_callback_ops = {
  * because we send the callback before the reply proper. I hope this
  * doesn't break any clients.
  */
-static __be32 nlmsvc_callback(struct svc_rqst *rqstp, u32 proc, struct nlm_args *argp,
-		__be32 (*func)(struct svc_rqst *, struct nlm_args *, struct nlm_res  *))
+static __be32 nlmsvc_callback(struct svc_rqst *rqstp, u32 proc,
+		__be32 (*func)(struct svc_rqst *, struct nlm_res *))
 {
+	struct nlm_args *argp = rqstp->rq_argp;
 	struct nlm_host	*host;
 	struct nlm_rqst	*call;
 	__be32 stat;
@@ -302,7 +334,7 @@ static __be32 nlmsvc_callback(struct svc_rqst *rqstp, u32 proc, struct nlm_args
 	if (call == NULL)
 		return rpc_system_err;
 
-	stat = func(rqstp, argp, &call->a_res);
+	stat = func(rqstp, &call->a_res);
 	if (stat != 0) {
 		nlmsvc_release_call(call);
 		return stat;
@@ -314,50 +346,46 @@ static __be32 nlmsvc_callback(struct svc_rqst *rqstp, u32 proc, struct nlm_args
 	return rpc_success;
 }
 
-static __be32 nlmsvc_proc_test_msg(struct svc_rqst *rqstp, struct nlm_args *argp,
-					     void	     *resp)
+static __be32 nlmsvc_proc_test_msg(struct svc_rqst *rqstp)
 {
 	dprintk("lockd: TEST_MSG      called\n");
-	return nlmsvc_callback(rqstp, NLMPROC_TEST_RES, argp, nlmsvc_proc_test);
+	return nlmsvc_callback(rqstp, NLMPROC_TEST_RES, __nlmsvc_proc_test);
 }
 
-static __be32 nlmsvc_proc_lock_msg(struct svc_rqst *rqstp, struct nlm_args *argp,
-					     void	     *resp)
+static __be32 nlmsvc_proc_lock_msg(struct svc_rqst *rqstp)
 {
 	dprintk("lockd: LOCK_MSG      called\n");
-	return nlmsvc_callback(rqstp, NLMPROC_LOCK_RES, argp, nlmsvc_proc_lock);
+	return nlmsvc_callback(rqstp, NLMPROC_LOCK_RES, __nlmsvc_proc_lock);
 }
 
-static __be32 nlmsvc_proc_cancel_msg(struct svc_rqst *rqstp, struct nlm_args *argp,
-					       void	       *resp)
+static __be32 nlmsvc_proc_cancel_msg(struct svc_rqst *rqstp)
 {
 	dprintk("lockd: CANCEL_MSG    called\n");
-	return nlmsvc_callback(rqstp, NLMPROC_CANCEL_RES, argp, nlmsvc_proc_cancel);
+	return nlmsvc_callback(rqstp, NLMPROC_CANCEL_RES, __nlmsvc_proc_cancel);
 }
 
 static __be32
-nlmsvc_proc_unlock_msg(struct svc_rqst *rqstp, struct nlm_args *argp,
-                                               void            *resp)
+nlmsvc_proc_unlock_msg(struct svc_rqst *rqstp)
 {
 	dprintk("lockd: UNLOCK_MSG    called\n");
-	return nlmsvc_callback(rqstp, NLMPROC_UNLOCK_RES, argp, nlmsvc_proc_unlock);
+	return nlmsvc_callback(rqstp, NLMPROC_UNLOCK_RES, __nlmsvc_proc_unlock);
 }
 
 static __be32
-nlmsvc_proc_granted_msg(struct svc_rqst *rqstp, struct nlm_args *argp,
-                                                void            *resp)
+nlmsvc_proc_granted_msg(struct svc_rqst *rqstp)
 {
 	dprintk("lockd: GRANTED_MSG   called\n");
-	return nlmsvc_callback(rqstp, NLMPROC_GRANTED_RES, argp, nlmsvc_proc_granted);
+	return nlmsvc_callback(rqstp, NLMPROC_GRANTED_RES, __nlmsvc_proc_granted);
 }
 
 /*
  * SHARE: create a DOS share or alter existing share.
  */
 static __be32
-nlmsvc_proc_share(struct svc_rqst *rqstp, struct nlm_args *argp,
-				          struct nlm_res  *resp)
+nlmsvc_proc_share(struct svc_rqst *rqstp)
 {
+	struct nlm_args *argp = rqstp->rq_argp;
+	struct nlm_res *resp = rqstp->rq_resp;
 	struct nlm_host	*host;
 	struct nlm_file	*file;
 
@@ -388,9 +416,10 @@ nlmsvc_proc_share(struct svc_rqst *rqstp, struct nlm_args *argp,
  * UNSHARE: Release a DOS share.
  */
 static __be32
-nlmsvc_proc_unshare(struct svc_rqst *rqstp, struct nlm_args *argp,
-				            struct nlm_res  *resp)
+nlmsvc_proc_unshare(struct svc_rqst *rqstp)
 {
+	struct nlm_args *argp = rqstp->rq_argp;
+	struct nlm_res *resp = rqstp->rq_resp;
 	struct nlm_host	*host;
 	struct nlm_file	*file;
 
@@ -421,22 +450,23 @@ nlmsvc_proc_unshare(struct svc_rqst *rqstp, struct nlm_args *argp,
  * NM_LOCK: Create an unmonitored lock
  */
 static __be32
-nlmsvc_proc_nm_lock(struct svc_rqst *rqstp, struct nlm_args *argp,
-				            struct nlm_res  *resp)
+nlmsvc_proc_nm_lock(struct svc_rqst *rqstp)
 {
+	struct nlm_args *argp = rqstp->rq_argp;
+
 	dprintk("lockd: NM_LOCK       called\n");
 
 	argp->monitor = 0;		/* just clean the monitor flag */
-	return nlmsvc_proc_lock(rqstp, argp, resp);
+	return nlmsvc_proc_lock(rqstp);
 }
 
 /*
  * FREE_ALL: Release all locks and shares held by client
  */
 static __be32
-nlmsvc_proc_free_all(struct svc_rqst *rqstp, struct nlm_args *argp,
-					     void            *resp)
+nlmsvc_proc_free_all(struct svc_rqst *rqstp)
 {
+	struct nlm_args *argp = rqstp->rq_argp;
 	struct nlm_host	*host;
 
 	/* Obtain client */
@@ -452,9 +482,10 @@ nlmsvc_proc_free_all(struct svc_rqst *rqstp, struct nlm_args *argp,
  * SM_NOTIFY: private callback from statd (not part of official NLM proto)
  */
 static __be32
-nlmsvc_proc_sm_notify(struct svc_rqst *rqstp, struct nlm_reboot *argp,
-					      void	        *resp)
+nlmsvc_proc_sm_notify(struct svc_rqst *rqstp)
 {
+	struct nlm_reboot *argp = rqstp->rq_argp;
+
 	dprintk("lockd: SM_NOTIFY     called\n");
 
 	if (!nlm_privileged_requester(rqstp)) {
@@ -472,9 +503,10 @@ nlmsvc_proc_sm_notify(struct svc_rqst *rqstp, struct nlm_reboot *argp,
  * client sent a GRANTED_RES, let's remove the associated block
  */
 static __be32
-nlmsvc_proc_granted_res(struct svc_rqst *rqstp, struct nlm_res  *argp,
-                                                void            *resp)
+nlmsvc_proc_granted_res(struct svc_rqst *rqstp)
 {
+	struct nlm_res *argp = rqstp->rq_argp;
+
 	if (!nlmsvc_ops)
 		return rpc_success;
 
@@ -505,9 +537,9 @@ nlmsvc_proc_granted_res(struct svc_rqst *rqstp, struct nlm_res  *argp,
 struct nlm_void			{ int dummy; };
 
 #define PROC(name, xargt, xrest, argt, rest, respsize)	\
- { .pc_func	= (svc_procfunc) nlmsvc_proc_##name,	\
-   .pc_decode	= (kxdrproc_t) nlmsvc_decode_##xargt,	\
-   .pc_encode	= (kxdrproc_t) nlmsvc_encode_##xrest,	\
+ { .pc_func	= nlmsvc_proc_##name,			\
+   .pc_decode	= nlmsvc_decode_##xargt,		\
+   .pc_encode	= nlmsvc_encode_##xrest,		\
    .pc_release	= NULL,					\
    .pc_argsize	= sizeof(struct nlm_##argt),		\
    .pc_ressize	= sizeof(struct nlm_##rest),		\
@@ -519,7 +551,7 @@ struct nlm_void			{ int dummy; };
 #define	No	(1+1024/4)			/* Net Obj */
 #define	Rg	2				/* range - offset + size */
 
-struct svc_procedure		nlmsvc_procedures[] = {
+const struct svc_procedure nlmsvc_procedures[] = {
   PROC(null,		void,		void,		void,	void, 1),
   PROC(test,		testargs,	testres,	args,	res, Ck+St+2+No+Rg),
   PROC(lock,		lockargs,	res,		args,	res, Ck+St),
diff --git a/fs/lockd/xdr.c b/fs/lockd/xdr.c
index 5b651daad518..442bbd0b0b29 100644
--- a/fs/lockd/xdr.c
+++ b/fs/lockd/xdr.c
@@ -182,8 +182,9 @@ nlm_encode_testres(__be32 *p, struct nlm_res *resp)
  * First, the server side XDR functions
  */
 int
-nlmsvc_decode_testargs(struct svc_rqst *rqstp, __be32 *p, nlm_args *argp)
+nlmsvc_decode_testargs(struct svc_rqst *rqstp, __be32 *p)
 {
+	struct nlm_args *argp = rqstp->rq_argp;
 	u32	exclusive;
 
 	if (!(p = nlm_decode_cookie(p, &argp->cookie)))
@@ -199,16 +200,19 @@ nlmsvc_decode_testargs(struct svc_rqst *rqstp, __be32 *p, nlm_args *argp)
 }
 
 int
-nlmsvc_encode_testres(struct svc_rqst *rqstp, __be32 *p, struct nlm_res *resp)
+nlmsvc_encode_testres(struct svc_rqst *rqstp, __be32 *p)
 {
+	struct nlm_res *resp = rqstp->rq_resp;
+
 	if (!(p = nlm_encode_testres(p, resp)))
 		return 0;
 	return xdr_ressize_check(rqstp, p);
 }
 
 int
-nlmsvc_decode_lockargs(struct svc_rqst *rqstp, __be32 *p, nlm_args *argp)
+nlmsvc_decode_lockargs(struct svc_rqst *rqstp, __be32 *p)
 {
+	struct nlm_args *argp = rqstp->rq_argp;
 	u32	exclusive;
 
 	if (!(p = nlm_decode_cookie(p, &argp->cookie)))
@@ -227,8 +231,9 @@ nlmsvc_decode_lockargs(struct svc_rqst *rqstp, __be32 *p, nlm_args *argp)
 }
 
 int
-nlmsvc_decode_cancargs(struct svc_rqst *rqstp, __be32 *p, nlm_args *argp)
+nlmsvc_decode_cancargs(struct svc_rqst *rqstp, __be32 *p)
 {
+	struct nlm_args *argp = rqstp->rq_argp;
 	u32	exclusive;
 
 	if (!(p = nlm_decode_cookie(p, &argp->cookie)))
@@ -243,8 +248,10 @@ nlmsvc_decode_cancargs(struct svc_rqst *rqstp, __be32 *p, nlm_args *argp)
 }
 
 int
-nlmsvc_decode_unlockargs(struct svc_rqst *rqstp, __be32 *p, nlm_args *argp)
+nlmsvc_decode_unlockargs(struct svc_rqst *rqstp, __be32 *p)
 {
+	struct nlm_args *argp = rqstp->rq_argp;
+
 	if (!(p = nlm_decode_cookie(p, &argp->cookie))
 	 || !(p = nlm_decode_lock(p, &argp->lock)))
 		return 0;
@@ -253,8 +260,9 @@ nlmsvc_decode_unlockargs(struct svc_rqst *rqstp, __be32 *p, nlm_args *argp)
 }
 
 int
-nlmsvc_decode_shareargs(struct svc_rqst *rqstp, __be32 *p, nlm_args *argp)
+nlmsvc_decode_shareargs(struct svc_rqst *rqstp, __be32 *p)
 {
+	struct nlm_args *argp = rqstp->rq_argp;
 	struct nlm_lock	*lock = &argp->lock;
 
 	memset(lock, 0, sizeof(*lock));
@@ -274,8 +282,10 @@ nlmsvc_decode_shareargs(struct svc_rqst *rqstp, __be32 *p, nlm_args *argp)
 }
 
 int
-nlmsvc_encode_shareres(struct svc_rqst *rqstp, __be32 *p, struct nlm_res *resp)
+nlmsvc_encode_shareres(struct svc_rqst *rqstp, __be32 *p)
 {
+	struct nlm_res *resp = rqstp->rq_resp;
+
 	if (!(p = nlm_encode_cookie(p, &resp->cookie)))
 		return 0;
 	*p++ = resp->status;
@@ -284,8 +294,10 @@ nlmsvc_encode_shareres(struct svc_rqst *rqstp, __be32 *p, struct nlm_res *resp)
 }
 
 int
-nlmsvc_encode_res(struct svc_rqst *rqstp, __be32 *p, struct nlm_res *resp)
+nlmsvc_encode_res(struct svc_rqst *rqstp, __be32 *p)
 {
+	struct nlm_res *resp = rqstp->rq_resp;
+
 	if (!(p = nlm_encode_cookie(p, &resp->cookie)))
 		return 0;
 	*p++ = resp->status;
@@ -293,8 +305,9 @@ nlmsvc_encode_res(struct svc_rqst *rqstp, __be32 *p, struct nlm_res *resp)
 }
 
 int
-nlmsvc_decode_notify(struct svc_rqst *rqstp, __be32 *p, struct nlm_args *argp)
+nlmsvc_decode_notify(struct svc_rqst *rqstp, __be32 *p)
 {
+	struct nlm_args *argp = rqstp->rq_argp;
 	struct nlm_lock	*lock = &argp->lock;
 
 	if (!(p = xdr_decode_string_inplace(p, &lock->caller,
@@ -305,8 +318,10 @@ nlmsvc_decode_notify(struct svc_rqst *rqstp, __be32 *p, struct nlm_args *argp)
 }
 
 int
-nlmsvc_decode_reboot(struct svc_rqst *rqstp, __be32 *p, struct nlm_reboot *argp)
+nlmsvc_decode_reboot(struct svc_rqst *rqstp, __be32 *p)
 {
+	struct nlm_reboot *argp = rqstp->rq_argp;
+
 	if (!(p = xdr_decode_string_inplace(p, &argp->mon, &argp->len, SM_MAXSTRLEN)))
 		return 0;
 	argp->state = ntohl(*p++);
@@ -316,8 +331,10 @@ nlmsvc_decode_reboot(struct svc_rqst *rqstp, __be32 *p, struct nlm_reboot *argp)
 }
 
 int
-nlmsvc_decode_res(struct svc_rqst *rqstp, __be32 *p, struct nlm_res *resp)
+nlmsvc_decode_res(struct svc_rqst *rqstp, __be32 *p)
 {
+	struct nlm_res *resp = rqstp->rq_argp;
+
 	if (!(p = nlm_decode_cookie(p, &resp->cookie)))
 		return 0;
 	resp->status = *p++;
@@ -325,13 +342,13 @@ nlmsvc_decode_res(struct svc_rqst *rqstp, __be32 *p, struct nlm_res *resp)
 }
 
 int
-nlmsvc_decode_void(struct svc_rqst *rqstp, __be32 *p, void *dummy)
+nlmsvc_decode_void(struct svc_rqst *rqstp, __be32 *p)
 {
 	return xdr_argsize_check(rqstp, p);
 }
 
 int
-nlmsvc_encode_void(struct svc_rqst *rqstp, __be32 *p, void *dummy)
+nlmsvc_encode_void(struct svc_rqst *rqstp, __be32 *p)
 {
 	return xdr_ressize_check(rqstp, p);
 }
diff --git a/fs/lockd/xdr4.c b/fs/lockd/xdr4.c
index dfa4789cd460..2a0cd5679c49 100644
--- a/fs/lockd/xdr4.c
+++ b/fs/lockd/xdr4.c
@@ -179,8 +179,9 @@ nlm4_encode_testres(__be32 *p, struct nlm_res *resp)
  * First, the server side XDR functions
  */
 int
-nlm4svc_decode_testargs(struct svc_rqst *rqstp, __be32 *p, nlm_args *argp)
+nlm4svc_decode_testargs(struct svc_rqst *rqstp, __be32 *p)
 {
+	struct nlm_args *argp = rqstp->rq_argp;
 	u32	exclusive;
 
 	if (!(p = nlm4_decode_cookie(p, &argp->cookie)))
@@ -196,16 +197,19 @@ nlm4svc_decode_testargs(struct svc_rqst *rqstp, __be32 *p, nlm_args *argp)
 }
 
 int
-nlm4svc_encode_testres(struct svc_rqst *rqstp, __be32 *p, struct nlm_res *resp)
+nlm4svc_encode_testres(struct svc_rqst *rqstp, __be32 *p)
 {
+	struct nlm_res *resp = rqstp->rq_resp;
+
 	if (!(p = nlm4_encode_testres(p, resp)))
 		return 0;
 	return xdr_ressize_check(rqstp, p);
 }
 
 int
-nlm4svc_decode_lockargs(struct svc_rqst *rqstp, __be32 *p, nlm_args *argp)
+nlm4svc_decode_lockargs(struct svc_rqst *rqstp, __be32 *p)
 {
+	struct nlm_args *argp = rqstp->rq_argp;
 	u32	exclusive;
 
 	if (!(p = nlm4_decode_cookie(p, &argp->cookie)))
@@ -224,8 +228,9 @@ nlm4svc_decode_lockargs(struct svc_rqst *rqstp, __be32 *p, nlm_args *argp)
 }
 
 int
-nlm4svc_decode_cancargs(struct svc_rqst *rqstp, __be32 *p, nlm_args *argp)
+nlm4svc_decode_cancargs(struct svc_rqst *rqstp, __be32 *p)
 {
+	struct nlm_args *argp = rqstp->rq_argp;
 	u32	exclusive;
 
 	if (!(p = nlm4_decode_cookie(p, &argp->cookie)))
@@ -240,8 +245,10 @@ nlm4svc_decode_cancargs(struct svc_rqst *rqstp, __be32 *p, nlm_args *argp)
 }
 
 int
-nlm4svc_decode_unlockargs(struct svc_rqst *rqstp, __be32 *p, nlm_args *argp)
+nlm4svc_decode_unlockargs(struct svc_rqst *rqstp, __be32 *p)
 {
+	struct nlm_args *argp = rqstp->rq_argp;
+
 	if (!(p = nlm4_decode_cookie(p, &argp->cookie))
 	 || !(p = nlm4_decode_lock(p, &argp->lock)))
 		return 0;
@@ -250,8 +257,9 @@ nlm4svc_decode_unlockargs(struct svc_rqst *rqstp, __be32 *p, nlm_args *argp)
 }
 
 int
-nlm4svc_decode_shareargs(struct svc_rqst *rqstp, __be32 *p, nlm_args *argp)
+nlm4svc_decode_shareargs(struct svc_rqst *rqstp, __be32 *p)
 {
+	struct nlm_args *argp = rqstp->rq_argp;
 	struct nlm_lock	*lock = &argp->lock;
 
 	memset(lock, 0, sizeof(*lock));
@@ -271,8 +279,10 @@ nlm4svc_decode_shareargs(struct svc_rqst *rqstp, __be32 *p, nlm_args *argp)
 }
 
 int
-nlm4svc_encode_shareres(struct svc_rqst *rqstp, __be32 *p, struct nlm_res *resp)
+nlm4svc_encode_shareres(struct svc_rqst *rqstp, __be32 *p)
 {
+	struct nlm_res *resp = rqstp->rq_resp;
+
 	if (!(p = nlm4_encode_cookie(p, &resp->cookie)))
 		return 0;
 	*p++ = resp->status;
@@ -281,8 +291,10 @@ nlm4svc_encode_shareres(struct svc_rqst *rqstp, __be32 *p, struct nlm_res *resp)
 }
 
 int
-nlm4svc_encode_res(struct svc_rqst *rqstp, __be32 *p, struct nlm_res *resp)
+nlm4svc_encode_res(struct svc_rqst *rqstp, __be32 *p)
 {
+	struct nlm_res *resp = rqstp->rq_resp;
+
 	if (!(p = nlm4_encode_cookie(p, &resp->cookie)))
 		return 0;
 	*p++ = resp->status;
@@ -290,8 +302,9 @@ nlm4svc_encode_res(struct svc_rqst *rqstp, __be32 *p, struct nlm_res *resp)
 }
 
 int
-nlm4svc_decode_notify(struct svc_rqst *rqstp, __be32 *p, struct nlm_args *argp)
+nlm4svc_decode_notify(struct svc_rqst *rqstp, __be32 *p)
 {
+	struct nlm_args *argp = rqstp->rq_argp;
 	struct nlm_lock	*lock = &argp->lock;
 
 	if (!(p = xdr_decode_string_inplace(p, &lock->caller,
@@ -302,8 +315,10 @@ nlm4svc_decode_notify(struct svc_rqst *rqstp, __be32 *p, struct nlm_args *argp)
 }
 
 int
-nlm4svc_decode_reboot(struct svc_rqst *rqstp, __be32 *p, struct nlm_reboot *argp)
+nlm4svc_decode_reboot(struct svc_rqst *rqstp, __be32 *p)
 {
+	struct nlm_reboot *argp = rqstp->rq_argp;
+
 	if (!(p = xdr_decode_string_inplace(p, &argp->mon, &argp->len, SM_MAXSTRLEN)))
 		return 0;
 	argp->state = ntohl(*p++);
@@ -313,8 +328,10 @@ nlm4svc_decode_reboot(struct svc_rqst *rqstp, __be32 *p, struct nlm_reboot *argp
 }
 
 int
-nlm4svc_decode_res(struct svc_rqst *rqstp, __be32 *p, struct nlm_res *resp)
+nlm4svc_decode_res(struct svc_rqst *rqstp, __be32 *p)
 {
+	struct nlm_res *resp = rqstp->rq_argp;
+
 	if (!(p = nlm4_decode_cookie(p, &resp->cookie)))
 		return 0;
 	resp->status = *p++;
@@ -322,13 +339,13 @@ nlm4svc_decode_res(struct svc_rqst *rqstp, __be32 *p, struct nlm_res *resp)
 }
 
 int
-nlm4svc_decode_void(struct svc_rqst *rqstp, __be32 *p, void *dummy)
+nlm4svc_decode_void(struct svc_rqst *rqstp, __be32 *p)
 {
 	return xdr_argsize_check(rqstp, p);
 }
 
 int
-nlm4svc_encode_void(struct svc_rqst *rqstp, __be32 *p, void *dummy)
+nlm4svc_encode_void(struct svc_rqst *rqstp, __be32 *p)
 {
 	return xdr_ressize_check(rqstp, p);
 }
diff --git a/fs/mount.h b/fs/mount.h
index de45d9e76748..6790767d1883 100644
--- a/fs/mount.h
+++ b/fs/mount.h
@@ -16,7 +16,7 @@ struct mnt_namespace {
 	u64 event;
 	unsigned int		mounts; /* # of mounts in the namespace */
 	unsigned int		pending_mounts;
-};
+} __randomize_layout;
 
 struct mnt_pcp {
 	int mnt_count;
@@ -69,7 +69,7 @@ struct mount {
 	struct hlist_head mnt_pins;
 	struct fs_pin mnt_umount;
 	struct dentry *mnt_ex_mountpoint;
-};
+} __randomize_layout;
 
 #define MNT_NS_INTERNAL ERR_PTR(-EINVAL) /* distinct from any mnt_namespace */
 
diff --git a/fs/namei.c b/fs/namei.c
index e0b46eb0e212..ddb6a7c2b3d4 100644
--- a/fs/namei.c
+++ b/fs/namei.c
@@ -524,7 +524,7 @@ struct nameidata {
 	struct inode	*link_inode;
 	unsigned	root_seq;
 	int		dfd;
-};
+} __randomize_layout;
 
 static void set_nameidata(struct nameidata *p, int dfd, struct filename *name)
 {
@@ -3400,7 +3400,6 @@ out:
 
 struct dentry *vfs_tmpfile(struct dentry *dentry, umode_t mode, int open_flag)
 {
-	static const struct qstr name = QSTR_INIT("/", 1);
 	struct dentry *child = NULL;
 	struct inode *dir = dentry->d_inode;
 	struct inode *inode;
@@ -3414,7 +3413,7 @@ struct dentry *vfs_tmpfile(struct dentry *dentry, umode_t mode, int open_flag)
 	if (!dir->i_op->tmpfile)
 		goto out_err;
 	error = -ENOMEM;
-	child = d_alloc(dentry, &name);
+	child = d_alloc(dentry, &slash_name);
 	if (unlikely(!child))
 		goto out_err;
 	error = dir->i_op->tmpfile(dir, child, mode);
diff --git a/fs/namespace.c b/fs/namespace.c
index 81f934b5d571..f8893dc6a989 100644
--- a/fs/namespace.c
+++ b/fs/namespace.c
@@ -1238,65 +1238,6 @@ struct vfsmount *mnt_clone_internal(const struct path *path)
 	return &p->mnt;
 }
 
-static inline void mangle(struct seq_file *m, const char *s)
-{
-	seq_escape(m, s, " \t\n\\");
-}
-
-/*
- * Simple .show_options callback for filesystems which don't want to
- * implement more complex mount option showing.
- *
- * See also save_mount_options().
- */
-int generic_show_options(struct seq_file *m, struct dentry *root)
-{
-	const char *options;
-
-	rcu_read_lock();
-	options = rcu_dereference(root->d_sb->s_options);
-
-	if (options != NULL && options[0]) {
-		seq_putc(m, ',');
-		mangle(m, options);
-	}
-	rcu_read_unlock();
-
-	return 0;
-}
-EXPORT_SYMBOL(generic_show_options);
-
-/*
- * If filesystem uses generic_show_options(), this function should be
- * called from the fill_super() callback.
- *
- * The .remount_fs callback usually needs to be handled in a special
- * way, to make sure, that previous options are not overwritten if the
- * remount fails.
- *
- * Also note, that if the filesystem's .remount_fs function doesn't
- * reset all options to their default value, but changes only newly
- * given options, then the displayed options will not reflect reality
- * any more.
- */
-void save_mount_options(struct super_block *sb, char *options)
-{
-	BUG_ON(sb->s_options);
-	rcu_assign_pointer(sb->s_options, kstrdup(options, GFP_KERNEL));
-}
-EXPORT_SYMBOL(save_mount_options);
-
-void replace_mount_options(struct super_block *sb, char *options)
-{
-	char *old = sb->s_options;
-	rcu_assign_pointer(sb->s_options, options);
-	if (old) {
-		synchronize_rcu();
-		kfree(old);
-	}
-}
-EXPORT_SYMBOL(replace_mount_options);
-
 #ifdef CONFIG_PROC_FS
 /* iterator; we want it to have access to namespace_sem, thus here... */
 static void *m_start(struct seq_file *m, loff_t *pos)
@@ -1657,7 +1598,7 @@ out_unlock:
 	namespace_unlock();
 }
 
-/* 
+/*
  * Is the caller allowed to modify his namespace?
  */
 static inline bool may_mount(void)
@@ -2211,7 +2152,7 @@ static int do_loopback(struct path *path, const char *old_name,
 
 	err = -EINVAL;
 	if (mnt_ns_loop(old_path.dentry))
-		goto out; 
+		goto out;
 
 	mp = lock_mount(path);
 	err = PTR_ERR(mp);
diff --git a/fs/nfs/Kconfig b/fs/nfs/Kconfig
index 69d02cf8cf37..5f93cfacb3d1 100644
--- a/fs/nfs/Kconfig
+++ b/fs/nfs/Kconfig
@@ -121,6 +121,7 @@ config PNFS_FILE_LAYOUT
 config PNFS_BLOCK
 	tristate
 	depends on NFS_V4_1 && BLK_DEV_DM
+	depends on 64BIT || LBDAF
 	default NFS_V4
 
 config PNFS_FLEXFILE_LAYOUT
diff --git a/fs/nfs/Makefile b/fs/nfs/Makefile
index 98f4e5728a67..1fb118902d57 100644
--- a/fs/nfs/Makefile
+++ b/fs/nfs/Makefile
@@ -7,7 +7,7 @@ obj-$(CONFIG_NFS_FS) += nfs.o
 CFLAGS_nfstrace.o += -I$(src)
 nfs-y 			:= client.o dir.o file.o getroot.o inode.o super.o \
 			   io.o direct.o pagelist.o read.o symlink.o unlink.o \
-			   write.o namespace.o mount_clnt.o nfstrace.o
+			   write.o namespace.o mount_clnt.o nfstrace.o export.o
 nfs-$(CONFIG_ROOT_NFS)	+= nfsroot.o
 nfs-$(CONFIG_SYSCTL)	+= sysctl.o
 nfs-$(CONFIG_NFS_FSCACHE) += fscache.o fscache-index.o
diff --git a/fs/nfs/callback.c b/fs/nfs/callback.c
index 73a1f928226c..34323877ec13 100644
--- a/fs/nfs/callback.c
+++ b/fs/nfs/callback.c
@@ -439,7 +439,7 @@ static int nfs_callback_authenticate(struct svc_rqst *rqstp)
 /*
  * Define NFS4 callback program
  */
-static struct svc_version *nfs4_callback_version[] = {
+static const struct svc_version *nfs4_callback_version[] = {
 	[1] = &nfs4_callback_version1,
 	[4] = &nfs4_callback_version4,
 };
diff --git a/fs/nfs/callback.h b/fs/nfs/callback.h
index c701c308fac5..3dc54d7cb19c 100644
--- a/fs/nfs/callback.h
+++ b/fs/nfs/callback.h
@@ -114,8 +114,7 @@ struct cb_sequenceres {
 	uint32_t			csr_target_highestslotid;
 };
 
-extern __be32 nfs4_callback_sequence(struct cb_sequenceargs *args,
-				       struct cb_sequenceres *res,
+extern __be32 nfs4_callback_sequence(void *argp, void *resp,
 				       struct cb_process_state *cps);
 
 #define RCA4_TYPE_MASK_RDATA_DLG	0
@@ -134,15 +133,13 @@ struct cb_recallanyargs {
 	uint32_t	craa_type_mask;
 };
 
-extern __be32 nfs4_callback_recallany(struct cb_recallanyargs *args,
-					void *dummy,
+extern __be32 nfs4_callback_recallany(void *argp, void *resp,
 					struct cb_process_state *cps);
 
 struct cb_recallslotargs {
 	uint32_t	crsa_target_highest_slotid;
 };
-extern __be32 nfs4_callback_recallslot(struct cb_recallslotargs *args,
-					 void *dummy,
+extern __be32 nfs4_callback_recallslot(void *argp, void *resp,
 					 struct cb_process_state *cps);
 
 struct cb_layoutrecallargs {
@@ -159,9 +156,8 @@ struct cb_layoutrecallargs {
 	};
 };
 
-extern __be32 nfs4_callback_layoutrecall(
-	struct cb_layoutrecallargs *args,
-	void *dummy, struct cb_process_state *cps);
+extern __be32 nfs4_callback_layoutrecall(void *argp, void *resp,
+		struct cb_process_state *cps);
 
 struct cb_devicenotifyitem {
 	uint32_t		cbd_notify_type;
@@ -175,9 +171,8 @@ struct cb_devicenotifyargs {
 	struct cb_devicenotifyitem	 *devs;
 };
 
-extern __be32 nfs4_callback_devicenotify(
-	struct cb_devicenotifyargs *args,
-	void *dummy, struct cb_process_state *cps);
+extern __be32 nfs4_callback_devicenotify(void *argp, void *resp,
+		struct cb_process_state *cps);
 
 struct cb_notify_lock_args {
 	struct nfs_fh			cbnl_fh;
@@ -185,15 +180,13 @@ struct cb_notify_lock_args {
 	bool				cbnl_valid;
 };
 
-extern __be32 nfs4_callback_notify_lock(struct cb_notify_lock_args *args,
-					 void *dummy,
+extern __be32 nfs4_callback_notify_lock(void *argp, void *resp,
 					 struct cb_process_state *cps);
 #endif /* CONFIG_NFS_V4_1 */
 extern int check_gss_callback_principal(struct nfs_client *, struct svc_rqst *);
-extern __be32 nfs4_callback_getattr(struct cb_getattrargs *args,
-				    struct cb_getattrres *res,
+extern __be32 nfs4_callback_getattr(void *argp, void *resp,
 				    struct cb_process_state *cps);
-extern __be32 nfs4_callback_recall(struct cb_recallargs *args, void *dummy,
+extern __be32 nfs4_callback_recall(void *argp, void *resp,
 				   struct cb_process_state *cps);
 #if IS_ENABLED(CONFIG_NFS_V4)
 extern int nfs_callback_up(u32 minorversion, struct rpc_xprt *xprt);
diff --git a/fs/nfs/callback_proc.c b/fs/nfs/callback_proc.c
index 52479f180ea1..5427cdf04c5a 100644
--- a/fs/nfs/callback_proc.c
+++ b/fs/nfs/callback_proc.c
@@ -19,10 +19,11 @@
 
 #define NFSDBG_FACILITY NFSDBG_CALLBACK
 
-__be32 nfs4_callback_getattr(struct cb_getattrargs *args,
-			     struct cb_getattrres *res,
+__be32 nfs4_callback_getattr(void *argp, void *resp,
 			     struct cb_process_state *cps)
 {
+	struct cb_getattrargs *args = argp;
+	struct cb_getattrres *res = resp;
 	struct nfs_delegation *delegation;
 	struct nfs_inode *nfsi;
 	struct inode *inode;
@@ -68,9 +69,10 @@ out:
 	return res->status;
 }
 
-__be32 nfs4_callback_recall(struct cb_recallargs *args, void *dummy,
+__be32 nfs4_callback_recall(void *argp, void *resp,
 			    struct cb_process_state *cps)
 {
+	struct cb_recallargs *args = argp;
 	struct inode *inode;
 	__be32 res;
 	
@@ -324,9 +326,10 @@ static u32 do_callback_layoutrecall(struct nfs_client *clp,
 	return initiate_bulk_draining(clp, args);
 }
 
-__be32 nfs4_callback_layoutrecall(struct cb_layoutrecallargs *args,
-				  void *dummy, struct cb_process_state *cps)
+__be32 nfs4_callback_layoutrecall(void *argp, void *resp,
+				  struct cb_process_state *cps)
 {
+	struct cb_layoutrecallargs *args = argp;
 	u32 res = NFS4ERR_OP_NOT_IN_SESSION;
 
 	if (cps->clp)
@@ -345,9 +348,10 @@ static void pnfs_recall_all_layouts(struct nfs_client *clp)
 	do_callback_layoutrecall(clp, &args);
 }
 
-__be32 nfs4_callback_devicenotify(struct cb_devicenotifyargs *args,
-				  void *dummy, struct cb_process_state *cps)
+__be32 nfs4_callback_devicenotify(void *argp, void *resp,
+				  struct cb_process_state *cps)
 {
+	struct cb_devicenotifyargs *args = argp;
 	int i;
 	__be32 res = 0;
 	struct nfs_client *clp = cps->clp;
@@ -469,10 +473,11 @@ out:
 	return status;
 }
 
-__be32 nfs4_callback_sequence(struct cb_sequenceargs *args,
-			      struct cb_sequenceres *res,
+__be32 nfs4_callback_sequence(void *argp, void *resp,
 			      struct cb_process_state *cps)
 {
+	struct cb_sequenceargs *args = argp;
+	struct cb_sequenceres *res = resp;
 	struct nfs4_slot_table *tbl;
 	struct nfs4_slot *slot;
 	struct nfs_client *clp;
@@ -571,9 +576,10 @@ validate_bitmap_values(unsigned long mask)
 	return (mask & ~RCA4_TYPE_MASK_ALL) == 0;
 }
 
-__be32 nfs4_callback_recallany(struct cb_recallanyargs *args, void *dummy,
+__be32 nfs4_callback_recallany(void *argp, void *resp,
 			       struct cb_process_state *cps)
 {
+	struct cb_recallanyargs *args = argp;
 	__be32 status;
 	fmode_t flags = 0;
 
@@ -606,9 +612,10 @@ out:
 }
 
 /* Reduce the fore channel's max_slots to the target value */
-__be32 nfs4_callback_recallslot(struct cb_recallslotargs *args, void *dummy,
+__be32 nfs4_callback_recallslot(void *argp, void *resp,
 				struct cb_process_state *cps)
 {
+	struct cb_recallslotargs *args = argp;
 	struct nfs4_slot_table *fc_tbl;
 	__be32 status;
 
@@ -631,9 +638,11 @@ out:
 	return status;
 }
 
-__be32 nfs4_callback_notify_lock(struct cb_notify_lock_args *args, void *dummy,
+__be32 nfs4_callback_notify_lock(void *argp, void *resp,
 				 struct cb_process_state *cps)
 {
+	struct cb_notify_lock_args *args = argp;
+
 	if (!cps->clp) /* set in cb_sequence */
 		return htonl(NFS4ERR_OP_NOT_IN_SESSION);
 
diff --git a/fs/nfs/callback_xdr.c b/fs/nfs/callback_xdr.c
index 390ac9c39c59..681dd642f119 100644
--- a/fs/nfs/callback_xdr.c
+++ b/fs/nfs/callback_xdr.c
@@ -43,32 +43,27 @@
 /* Internal error code */
 #define NFS4ERR_RESOURCE_HDR	11050
 
-typedef __be32 (*callback_process_op_t)(void *, void *,
-					struct cb_process_state *);
-typedef __be32 (*callback_decode_arg_t)(struct svc_rqst *, struct xdr_stream *, void *);
-typedef __be32 (*callback_encode_res_t)(struct svc_rqst *, struct xdr_stream *, void *);
-
-
 struct callback_op {
-	callback_process_op_t process_op;
-	callback_decode_arg_t decode_args;
-	callback_encode_res_t encode_res;
+	__be32 (*process_op)(void *, void *, struct cb_process_state *);
+	__be32 (*decode_args)(struct svc_rqst *, struct xdr_stream *, void *);
+	__be32 (*encode_res)(struct svc_rqst *, struct xdr_stream *,
+			const void *);
 	long res_maxsize;
 };
 
 static struct callback_op callback_ops[];
 
-static __be32 nfs4_callback_null(struct svc_rqst *rqstp, void *argp, void *resp)
+static __be32 nfs4_callback_null(struct svc_rqst *rqstp)
 {
 	return htonl(NFS4_OK);
 }
 
-static int nfs4_decode_void(struct svc_rqst *rqstp, __be32 *p, void *dummy)
+static int nfs4_decode_void(struct svc_rqst *rqstp, __be32 *p)
 {
 	return xdr_argsize_check(rqstp, p);
 }
 
-static int nfs4_encode_void(struct svc_rqst *rqstp, __be32 *p, void *dummy)
+static int nfs4_encode_void(struct svc_rqst *rqstp, __be32 *p)
 {
 	return xdr_ressize_check(rqstp, p);
 }
@@ -184,8 +179,10 @@ static __be32 decode_op_hdr(struct xdr_stream *xdr, unsigned int *op)
 	return 0;
 }
 
-static __be32 decode_getattr_args(struct svc_rqst *rqstp, struct xdr_stream *xdr, struct cb_getattrargs *args)
+static __be32 decode_getattr_args(struct svc_rqst *rqstp,
+		struct xdr_stream *xdr, void *argp)
 {
+	struct cb_getattrargs *args = argp;
 	__be32 status;
 
 	status = decode_fh(xdr, &args->fh);
@@ -194,8 +191,10 @@ static __be32 decode_getattr_args(struct svc_rqst *rqstp, struct xdr_stream *xdr
 	return decode_bitmap(xdr, args->bitmap);
 }
 
-static __be32 decode_recall_args(struct svc_rqst *rqstp, struct xdr_stream *xdr, struct cb_recallargs *args)
+static __be32 decode_recall_args(struct svc_rqst *rqstp,
+		struct xdr_stream *xdr, void *argp)
 {
+	struct cb_recallargs *args = argp;
 	__be32 *p;
 	__be32 status;
 
@@ -217,9 +216,9 @@ static __be32 decode_layout_stateid(struct xdr_stream *xdr, nfs4_stateid *statei
 }
 
 static __be32 decode_layoutrecall_args(struct svc_rqst *rqstp,
-				       struct xdr_stream *xdr,
-				       struct cb_layoutrecallargs *args)
+				       struct xdr_stream *xdr, void *argp)
 {
+	struct cb_layoutrecallargs *args = argp;
 	__be32 *p;
 	__be32 status = 0;
 	uint32_t iomode;
@@ -262,8 +261,9 @@ static __be32 decode_layoutrecall_args(struct svc_rqst *rqstp,
 static
 __be32 decode_devicenotify_args(struct svc_rqst *rqstp,
 				struct xdr_stream *xdr,
-				struct cb_devicenotifyargs *args)
+				void *argp)
 {
+	struct cb_devicenotifyargs *args = argp;
 	__be32 *p;
 	__be32 status = 0;
 	u32 tmp;
@@ -403,8 +403,9 @@ out:
 
 static __be32 decode_cb_sequence_args(struct svc_rqst *rqstp,
 					struct xdr_stream *xdr,
-					struct cb_sequenceargs *args)
+					void *argp)
 {
+	struct cb_sequenceargs *args = argp;
 	__be32 *p;
 	int i;
 	__be32 status;
@@ -450,8 +451,9 @@ out_free:
 
 static __be32 decode_recallany_args(struct svc_rqst *rqstp,
 				      struct xdr_stream *xdr,
-				      struct cb_recallanyargs *args)
+				      void *argp)
 {
+	struct cb_recallanyargs *args = argp;
 	uint32_t bitmap[2];
 	__be32 *p, status;
 
@@ -469,8 +471,9 @@ static __be32 decode_recallany_args(struct svc_rqst *rqstp,
 
 static __be32 decode_recallslot_args(struct svc_rqst *rqstp,
 					struct xdr_stream *xdr,
-					struct cb_recallslotargs *args)
+					void *argp)
 {
+	struct cb_recallslotargs *args = argp;
 	__be32 *p;
 
 	p = read_buf(xdr, 4);
@@ -510,8 +513,10 @@ static __be32 decode_lockowner(struct xdr_stream *xdr, struct cb_notify_lock_arg
 	return 0;
 }
 
-static __be32 decode_notify_lock_args(struct svc_rqst *rqstp, struct xdr_stream *xdr, struct cb_notify_lock_args *args)
+static __be32 decode_notify_lock_args(struct svc_rqst *rqstp,
+		struct xdr_stream *xdr, void *argp)
 {
+	struct cb_notify_lock_args *args = argp;
 	__be32 status;
 
 	status = decode_fh(xdr, &args->cbnl_fh);
@@ -641,8 +646,10 @@ static __be32 encode_op_hdr(struct xdr_stream *xdr, uint32_t op, __be32 res)
 	return 0;
 }
 
-static __be32 encode_getattr_res(struct svc_rqst *rqstp, struct xdr_stream *xdr, const struct cb_getattrres *res)
+static __be32 encode_getattr_res(struct svc_rqst *rqstp, struct xdr_stream *xdr,
+		const void *resp)
 {
+	const struct cb_getattrres *res = resp;
 	__be32 *savep = NULL;
 	__be32 status = res->status;
 	
@@ -683,8 +690,9 @@ static __be32 encode_sessionid(struct xdr_stream *xdr,
 
 static __be32 encode_cb_sequence_res(struct svc_rqst *rqstp,
 				       struct xdr_stream *xdr,
-				       const struct cb_sequenceres *res)
+				       const void *resp)
 {
+	const struct cb_sequenceres *res = resp;
 	__be32 *p;
 	__be32 status = res->csr_status;
 
@@ -871,7 +879,7 @@ encode_hdr:
 /*
  * Decode, process and encode a COMPOUND
  */
-static __be32 nfs4_callback_compound(struct svc_rqst *rqstp, void *argp, void *resp)
+static __be32 nfs4_callback_compound(struct svc_rqst *rqstp)
 {
 	struct cb_compound_hdr_arg hdr_arg = { 0 };
 	struct cb_compound_hdr_res hdr_res = { NULL };
@@ -907,7 +915,8 @@ static __be32 nfs4_callback_compound(struct svc_rqst *rqstp, void *argp, void *r
 
 	while (status == 0 && nops != hdr_arg.nops) {
 		status = process_op(nops, rqstp, &xdr_in,
-				    argp, &xdr_out, resp, &cps);
+				    rqstp->rq_argp, &xdr_out, rqstp->rq_resp,
+				    &cps);
 		nops++;
 	}
 
@@ -937,48 +946,46 @@ static struct callback_op callback_ops[] = {
 		.res_maxsize = CB_OP_HDR_RES_MAXSZ,
 	},
 	[OP_CB_GETATTR] = {
-		.process_op = (callback_process_op_t)nfs4_callback_getattr,
-		.decode_args = (callback_decode_arg_t)decode_getattr_args,
-		.encode_res = (callback_encode_res_t)encode_getattr_res,
+		.process_op = nfs4_callback_getattr,
+		.decode_args = decode_getattr_args,
+		.encode_res = encode_getattr_res,
 		.res_maxsize = CB_OP_GETATTR_RES_MAXSZ,
 	},
 	[OP_CB_RECALL] = {
-		.process_op = (callback_process_op_t)nfs4_callback_recall,
-		.decode_args = (callback_decode_arg_t)decode_recall_args,
+		.process_op = nfs4_callback_recall,
+		.decode_args = decode_recall_args,
 		.res_maxsize = CB_OP_RECALL_RES_MAXSZ,
 	},
 #if defined(CONFIG_NFS_V4_1)
 	[OP_CB_LAYOUTRECALL] = {
-		.process_op = (callback_process_op_t)nfs4_callback_layoutrecall,
-		.decode_args =
-			(callback_decode_arg_t)decode_layoutrecall_args,
+		.process_op = nfs4_callback_layoutrecall,
+		.decode_args = decode_layoutrecall_args,
 		.res_maxsize = CB_OP_LAYOUTRECALL_RES_MAXSZ,
 	},
 	[OP_CB_NOTIFY_DEVICEID] = {
-		.process_op = (callback_process_op_t)nfs4_callback_devicenotify,
-		.decode_args =
-			(callback_decode_arg_t)decode_devicenotify_args,
+		.process_op = nfs4_callback_devicenotify,
+		.decode_args = decode_devicenotify_args,
 		.res_maxsize = CB_OP_DEVICENOTIFY_RES_MAXSZ,
 	},
 	[OP_CB_SEQUENCE] = {
-		.process_op = (callback_process_op_t)nfs4_callback_sequence,
-		.decode_args = (callback_decode_arg_t)decode_cb_sequence_args,
-		.encode_res = (callback_encode_res_t)encode_cb_sequence_res,
+		.process_op = nfs4_callback_sequence,
+		.decode_args = decode_cb_sequence_args,
+		.encode_res = encode_cb_sequence_res,
 		.res_maxsize = CB_OP_SEQUENCE_RES_MAXSZ,
 	},
 	[OP_CB_RECALL_ANY] = {
-		.process_op = (callback_process_op_t)nfs4_callback_recallany,
-		.decode_args = (callback_decode_arg_t)decode_recallany_args,
+		.process_op = nfs4_callback_recallany,
+		.decode_args = decode_recallany_args,
 		.res_maxsize = CB_OP_RECALLANY_RES_MAXSZ,
 	},
 	[OP_CB_RECALL_SLOT] = {
-		.process_op = (callback_process_op_t)nfs4_callback_recallslot,
-		.decode_args = (callback_decode_arg_t)decode_recallslot_args,
+		.process_op = nfs4_callback_recallslot,
+		.decode_args = decode_recallslot_args,
 		.res_maxsize = CB_OP_RECALLSLOT_RES_MAXSZ,
 	},
 	[OP_CB_NOTIFY_LOCK] = {
-		.process_op = (callback_process_op_t)nfs4_callback_notify_lock,
-		.decode_args = (callback_decode_arg_t)decode_notify_lock_args,
+		.process_op = nfs4_callback_notify_lock,
+		.decode_args = decode_notify_lock_args,
 		.res_maxsize = CB_OP_NOTIFY_LOCK_RES_MAXSZ,
 	},
 #endif /* CONFIG_NFS_V4_1 */
@@ -987,36 +994,40 @@ static struct callback_op callback_ops[] = {
 /*
  * Define NFS4 callback procedures
  */
-static struct svc_procedure nfs4_callback_procedures1[] = {
+static const struct svc_procedure nfs4_callback_procedures1[] = {
 	[CB_NULL] = {
 		.pc_func = nfs4_callback_null,
-		.pc_decode = (kxdrproc_t)nfs4_decode_void,
-		.pc_encode = (kxdrproc_t)nfs4_encode_void,
+		.pc_decode = nfs4_decode_void,
+		.pc_encode = nfs4_encode_void,
 		.pc_xdrressize = 1,
 	},
 	[CB_COMPOUND] = {
 		.pc_func = nfs4_callback_compound,
-		.pc_encode = (kxdrproc_t)nfs4_encode_void,
+		.pc_encode = nfs4_encode_void,
 		.pc_argsize = 256,
 		.pc_ressize = 256,
 		.pc_xdrressize = NFS4_CALLBACK_BUFSIZE,
 	}
 };
 
-struct svc_version nfs4_callback_version1 = {
+static unsigned int nfs4_callback_count1[ARRAY_SIZE(nfs4_callback_procedures1)];
+const struct svc_version nfs4_callback_version1 = {
 	.vs_vers = 1,
 	.vs_nproc = ARRAY_SIZE(nfs4_callback_procedures1),
 	.vs_proc = nfs4_callback_procedures1,
+	.vs_count = nfs4_callback_count1,
 	.vs_xdrsize = NFS4_CALLBACK_XDRSIZE,
 	.vs_dispatch = NULL,
 	.vs_hidden = true,
 	.vs_need_cong_ctrl = true,
 };
 
-struct svc_version nfs4_callback_version4 = {
+static unsigned int nfs4_callback_count4[ARRAY_SIZE(nfs4_callback_procedures1)];
+const struct svc_version nfs4_callback_version4 = {
 	.vs_vers = 4,
 	.vs_nproc = ARRAY_SIZE(nfs4_callback_procedures1),
 	.vs_proc = nfs4_callback_procedures1,
+	.vs_count = nfs4_callback_count4,
 	.vs_xdrsize = NFS4_CALLBACK_XDRSIZE,
 	.vs_dispatch = NULL,
 	.vs_hidden = true,
diff --git a/fs/nfs/client.c b/fs/nfs/client.c
index ee5ddbd36088..efebe6cf4378 100644
--- a/fs/nfs/client.c
+++ b/fs/nfs/client.c
@@ -820,6 +820,7 @@ void nfs_server_copy_userdata(struct nfs_server *target, struct nfs_server *sour
 	target->caps = source->caps;
 	target->options = source->options;
 	target->auth_info = source->auth_info;
+	target->port = source->port;
 }
 EXPORT_SYMBOL_GPL(nfs_server_copy_userdata);
 
diff --git a/fs/nfs/dir.c b/fs/nfs/dir.c
index 2ac00bf4ecf1..3522b1249019 100644
--- a/fs/nfs/dir.c
+++ b/fs/nfs/dir.c
@@ -151,7 +151,7 @@ struct nfs_cache_array {
 	struct nfs_cache_array_entry array[0];
 };
 
-typedef int (*decode_dirent_t)(struct xdr_stream *, struct nfs_entry *, int);
+typedef int (*decode_dirent_t)(struct xdr_stream *, struct nfs_entry *, bool);
 typedef struct {
 	struct file	*file;
 	struct page	*page;
@@ -165,8 +165,8 @@ typedef struct {
 	unsigned long	timestamp;
 	unsigned long	gencount;
 	unsigned int	cache_entry_index;
-	unsigned int	plus:1;
-	unsigned int	eof:1;
+	bool plus;
+	bool eof;
 } nfs_readdir_descriptor_t;
 
 /*
@@ -355,7 +355,7 @@ int nfs_readdir_xdr_filler(struct page **pages, nfs_readdir_descriptor_t *desc,
 		if (error == -ENOTSUPP && desc->plus) {
 			NFS_SERVER(inode)->caps &= ~NFS_CAP_READDIRPLUS;
 			clear_bit(NFS_INO_ADVISE_RDPLUS, &NFS_I(inode)->flags);
-			desc->plus = 0;
+			desc->plus = false;
 			goto again;
 		}
 		goto error;
@@ -557,7 +557,7 @@ int nfs_readdir_page_filler(nfs_readdir_descriptor_t *desc, struct nfs_entry *en
 
 		count++;
 
-		if (desc->plus != 0)
+		if (desc->plus)
 			nfs_prime_dcache(file_dentry(desc->file), entry);
 
 		status = nfs_readdir_add_to_array(entry, page);
@@ -860,7 +860,7 @@ static int nfs_readdir(struct file *file, struct dir_context *ctx)
 	desc->ctx = ctx;
 	desc->dir_cookie = &dir_ctx->dir_cookie;
 	desc->decode = NFS_PROTO(inode)->decode_dirent;
-	desc->plus = nfs_use_readdirplus(inode, ctx) ? 1 : 0;
+	desc->plus = nfs_use_readdirplus(inode, ctx);
 
 	if (ctx->pos == 0 || nfs_attribute_cache_expired(inode))
 		res = nfs_revalidate_mapping(inode, file->f_mapping);
@@ -885,8 +885,8 @@ static int nfs_readdir(struct file *file, struct dir_context *ctx)
 			clear_bit(NFS_INO_ADVISE_RDPLUS, &NFS_I(inode)->flags);
 			nfs_zap_caches(inode);
 			desc->page_index = 0;
-			desc->plus = 0;
-			desc->eof = 0;
+			desc->plus = false;
+			desc->eof = false;
 			continue;
 		}
 		if (res < 0)
@@ -1115,11 +1115,13 @@ static int nfs_lookup_revalidate(struct dentry *dentry, unsigned int flags)
 	/* Force a full look up iff the parent directory has changed */
 	if (!nfs_is_exclusive_create(dir, flags) &&
 	    nfs_check_verifier(dir, dentry, flags & LOOKUP_RCU)) {
-
-		if (nfs_lookup_verify_inode(inode, flags)) {
+		error = nfs_lookup_verify_inode(inode, flags);
+		if (error) {
 			if (flags & LOOKUP_RCU)
 				return -ECHILD;
-			goto out_zap_parent;
+			if (error == -ESTALE)
+				goto out_zap_parent;
+			goto out_error;
 		}
 		nfs_advise_use_readdirplus(dir);
 		goto out_valid;
@@ -1144,8 +1146,10 @@ static int nfs_lookup_revalidate(struct dentry *dentry, unsigned int flags)
 	trace_nfs_lookup_revalidate_enter(dir, dentry, flags);
 	error = NFS_PROTO(dir)->lookup(dir, &dentry->d_name, fhandle, fattr, label);
 	trace_nfs_lookup_revalidate_exit(dir, dentry, flags, error);
-	if (error)
+	if (error == -ESTALE || error == -ENOENT)
 		goto out_bad;
+	if (error)
+		goto out_error;
 	if (nfs_compare_fh(NFS_FH(inode), fhandle))
 		goto out_bad;
 	if ((error = nfs_refresh_inode(inode, fattr)) != 0)
@@ -1427,8 +1431,10 @@ static int nfs_finish_open(struct nfs_open_context *ctx,
 	err = finish_open(file, dentry, do_open, opened);
 	if (err)
 		goto out;
-	nfs_file_set_open_context(file, ctx);
-
+	if (S_ISREG(file->f_path.dentry->d_inode->i_mode))
+		nfs_file_set_open_context(file, ctx);
+	else
+		err = -ESTALE;
 out:
 	return err;
 }
@@ -1512,7 +1518,7 @@ int nfs_atomic_open(struct inode *dir, struct dentry *dentry,
 		d_drop(dentry);
 		switch (err) {
 		case -ENOENT:
-			d_add(dentry, NULL);
+			d_splice_alias(NULL, dentry);
 			nfs_set_verifier(dentry, nfs_save_change_attribute(dir));
 			break;
 		case -EISDIR:
@@ -2035,7 +2041,11 @@ int nfs_rename(struct inode *old_dir, struct dentry *old_dentry,
 	}
 
 	error = rpc_wait_for_completion_task(task);
-	if (error == 0)
+	if (error != 0) {
+		((struct nfs_renamedata *)task->tk_calldata)->cancelled = 1;
+		/* Paired with the atomic_dec_and_test() barrier in rpc_do_put_task() */
+		smp_wmb();
+	} else
 		error = task->tk_status;
 	rpc_put_task(task);
 	nfs_mark_for_revalidate(old_inode);
@@ -2362,16 +2372,40 @@ void nfs_access_add_cache(struct inode *inode, struct nfs_access_entry *set)
 }
 EXPORT_SYMBOL_GPL(nfs_access_add_cache);
 
+#define NFS_MAY_READ (NFS4_ACCESS_READ)
+#define NFS_MAY_WRITE (NFS4_ACCESS_MODIFY | \
+		NFS4_ACCESS_EXTEND | \
+		NFS4_ACCESS_DELETE)
+#define NFS_FILE_MAY_WRITE (NFS4_ACCESS_MODIFY | \
+		NFS4_ACCESS_EXTEND)
+#define NFS_DIR_MAY_WRITE NFS_MAY_WRITE
+#define NFS_MAY_LOOKUP (NFS4_ACCESS_LOOKUP)
+#define NFS_MAY_EXECUTE (NFS4_ACCESS_EXECUTE)
+static int
+nfs_access_calc_mask(u32 access_result, umode_t umode)
+{
+	int mask = 0;
+
+	if (access_result & NFS_MAY_READ)
+		mask |= MAY_READ;
+	if (S_ISDIR(umode)) {
+		if ((access_result & NFS_DIR_MAY_WRITE) == NFS_DIR_MAY_WRITE)
+			mask |= MAY_WRITE;
+		if ((access_result & NFS_MAY_LOOKUP) == NFS_MAY_LOOKUP)
+			mask |= MAY_EXEC;
+	} else if (S_ISREG(umode)) {
+		if ((access_result & NFS_FILE_MAY_WRITE) == NFS_FILE_MAY_WRITE)
+			mask |= MAY_WRITE;
+		if ((access_result & NFS_MAY_EXECUTE) == NFS_MAY_EXECUTE)
+			mask |= MAY_EXEC;
+	} else if (access_result & NFS_MAY_WRITE)
+			mask |= MAY_WRITE;
+	return mask;
+}
+
 void nfs_access_set_mask(struct nfs_access_entry *entry, u32 access_result)
 {
-	entry->mask = 0;
-	if (access_result & NFS4_ACCESS_READ)
-		entry->mask |= MAY_READ;
-	if (access_result &
-	    (NFS4_ACCESS_MODIFY | NFS4_ACCESS_EXTEND | NFS4_ACCESS_DELETE))
-		entry->mask |= MAY_WRITE;
-	if (access_result & (NFS4_ACCESS_LOOKUP|NFS4_ACCESS_EXECUTE))
-		entry->mask |= MAY_EXEC;
+	entry->mask = access_result;
 }
 EXPORT_SYMBOL_GPL(nfs_access_set_mask);
 
@@ -2379,6 +2413,7 @@ static int nfs_do_access(struct inode *inode, struct rpc_cred *cred, int mask)
 {
 	struct nfs_access_entry cache;
 	bool may_block = (mask & MAY_NOT_BLOCK) == 0;
+	int cache_mask;
 	int status;
 
 	trace_nfs_access_enter(inode);
@@ -2394,7 +2429,8 @@ static int nfs_do_access(struct inode *inode, struct rpc_cred *cred, int mask)
 		goto out;
 
 	/* Be clever: ask server to check for all possible rights */
-	cache.mask = MAY_EXEC | MAY_WRITE | MAY_READ;
+	cache.mask = NFS_MAY_LOOKUP | NFS_MAY_EXECUTE
+		     | NFS_MAY_WRITE | NFS_MAY_READ;
 	cache.cred = cred;
 	cache.jiffies = jiffies;
 	status = NFS_PROTO(inode)->access(inode, &cache);
@@ -2408,7 +2444,8 @@ static int nfs_do_access(struct inode *inode, struct rpc_cred *cred, int mask)
 	}
 	nfs_access_add_cache(inode, &cache);
 out_cached:
-	if ((mask & ~cache.mask & (MAY_READ | MAY_WRITE | MAY_EXEC)) != 0)
+	cache_mask = nfs_access_calc_mask(cache.mask, inode->i_mode);
+	if ((mask & ~cache_mask & (MAY_READ | MAY_WRITE | MAY_EXEC)) != 0)
 		status = -EACCES;
 out:
 	trace_nfs_access_exit(inode, status);
diff --git a/fs/nfs/export.c b/fs/nfs/export.c
new file mode 100644
index 000000000000..249cb96cc5b5
--- /dev/null
+++ b/fs/nfs/export.c
@@ -0,0 +1,177 @@
+/*
+ * Copyright (c) 2015, Primary Data, Inc. All rights reserved.
+ *
+ * Tao Peng <bergwolf@primarydata.com>
+ */
+#include <linux/dcache.h>
+#include <linux/exportfs.h>
+#include <linux/nfs.h>
+#include <linux/nfs_fs.h>
+
+#include "internal.h"
+#include "nfstrace.h"
+
+#define NFSDBG_FACILITY		NFSDBG_VFS
+
+enum {
+	FILEID_HIGH_OFF = 0,	/* inode fileid high */
+	FILEID_LOW_OFF,		/* inode fileid low */
+	FILE_I_TYPE_OFF,	/* inode type */
+	EMBED_FH_OFF		/* embeded server fh */
+};
+
+
+static struct nfs_fh *nfs_exp_embedfh(__u32 *p)
+{
+	return (struct nfs_fh *)(p + EMBED_FH_OFF);
+}
+
+/*
+ * Let's break subtree checking for now... otherwise we'll have to embed parent fh
+ * but there might not be enough space.
+ */
+static int
+nfs_encode_fh(struct inode *inode, __u32 *p, int *max_len, struct inode *parent)
+{
+	struct nfs_fh *server_fh = NFS_FH(inode);
+	struct nfs_fh *clnt_fh = nfs_exp_embedfh(p);
+	size_t fh_size = offsetof(struct nfs_fh, data) + server_fh->size;
+	int len = EMBED_FH_OFF + XDR_QUADLEN(fh_size);
+
+	dprintk("%s: max fh len %d inode %p parent %p",
+		__func__, *max_len, inode, parent);
+
+	if (*max_len < len || IS_AUTOMOUNT(inode)) {
+		dprintk("%s: fh len %d too small, required %d\n",
+			__func__, *max_len, len);
+		*max_len = len;
+		return FILEID_INVALID;
+	}
+	if (IS_AUTOMOUNT(inode)) {
+		*max_len = FILEID_INVALID;
+		goto out;
+	}
+
+	p[FILEID_HIGH_OFF] = NFS_FILEID(inode) >> 32;
+	p[FILEID_LOW_OFF] = NFS_FILEID(inode);
+	p[FILE_I_TYPE_OFF] = inode->i_mode & S_IFMT;
+	p[len - 1] = 0; /* Padding */
+	nfs_copy_fh(clnt_fh, server_fh);
+	*max_len = len;
+out:
+	dprintk("%s: result fh fileid %llu mode %u size %d\n",
+		__func__, NFS_FILEID(inode), inode->i_mode, *max_len);
+	return *max_len;
+}
+
+static struct dentry *
+nfs_fh_to_dentry(struct super_block *sb, struct fid *fid,
+		 int fh_len, int fh_type)
+{
+	struct nfs4_label *label = NULL;
+	struct nfs_fattr *fattr = NULL;
+	struct nfs_fh *server_fh = nfs_exp_embedfh(fid->raw);
+	size_t fh_size = offsetof(struct nfs_fh, data) + server_fh->size;
+	const struct nfs_rpc_ops *rpc_ops;
+	struct dentry *dentry;
+	struct inode *inode;
+	int len = EMBED_FH_OFF + XDR_QUADLEN(fh_size);
+	u32 *p = fid->raw;
+	int ret;
+
+	/* NULL translates to ESTALE */
+	if (fh_len < len || fh_type != len)
+		return NULL;
+
+	fattr = nfs_alloc_fattr();
+	if (fattr == NULL) {
+		dentry = ERR_PTR(-ENOMEM);
+		goto out;
+	}
+
+	fattr->fileid = ((u64)p[FILEID_HIGH_OFF] << 32) + p[FILEID_LOW_OFF];
+	fattr->mode = p[FILE_I_TYPE_OFF];
+	fattr->valid |= NFS_ATTR_FATTR_FILEID | NFS_ATTR_FATTR_TYPE;
+
+	dprintk("%s: fileid %llu mode %d\n", __func__, fattr->fileid, fattr->mode);
+
+	inode = nfs_ilookup(sb, fattr, server_fh);
+	if (inode)
+		goto out_found;
+
+	label = nfs4_label_alloc(NFS_SB(sb), GFP_KERNEL);
+	if (IS_ERR(label)) {
+		dentry = ERR_CAST(label);
+		goto out_free_fattr;
+	}
+
+	rpc_ops = NFS_SB(sb)->nfs_client->rpc_ops;
+	ret = rpc_ops->getattr(NFS_SB(sb), server_fh, fattr, label);
+	if (ret) {
+		dprintk("%s: getattr failed %d\n", __func__, ret);
+		dentry = ERR_PTR(ret);
+		goto out_free_label;
+	}
+
+	inode = nfs_fhget(sb, server_fh, fattr, label);
+
+out_found:
+	dentry = d_obtain_alias(inode);
+
+out_free_label:
+	nfs4_label_free(label);
+out_free_fattr:
+	nfs_free_fattr(fattr);
+out:
+	return dentry;
+}
+
+static struct dentry *
+nfs_get_parent(struct dentry *dentry)
+{
+	int ret;
+	struct inode *inode = d_inode(dentry), *pinode;
+	struct super_block *sb = inode->i_sb;
+	struct nfs_server *server = NFS_SB(sb);
+	struct nfs_fattr *fattr = NULL;
+	struct nfs4_label *label = NULL;
+	struct dentry *parent;
+	struct nfs_rpc_ops const *ops = server->nfs_client->rpc_ops;
+	struct nfs_fh fh;
+
+	if (!ops->lookupp)
+		return ERR_PTR(-EACCES);
+
+	fattr = nfs_alloc_fattr();
+	if (fattr == NULL) {
+		parent = ERR_PTR(-ENOMEM);
+		goto out;
+	}
+
+	label = nfs4_label_alloc(server, GFP_KERNEL);
+	if (IS_ERR(label)) {
+		parent = ERR_CAST(label);
+		goto out_free_fattr;
+	}
+
+	ret = ops->lookupp(inode, &fh, fattr, label);
+	if (ret) {
+		parent = ERR_PTR(ret);
+		goto out_free_label;
+	}
+
+	pinode = nfs_fhget(sb, &fh, fattr, label);
+	parent = d_obtain_alias(pinode);
+out_free_label:
+	nfs4_label_free(label);
+out_free_fattr:
+	nfs_free_fattr(fattr);
+out:
+	return parent;
+}
+
+const struct export_operations nfs_export_ops = {
+	.encode_fh = nfs_encode_fh,
+	.fh_to_dentry = nfs_fh_to_dentry,
+	.get_parent = nfs_get_parent,
+};
diff --git a/fs/nfs/file.c b/fs/nfs/file.c
index 5713eb32a45e..af330c31f627 100644
--- a/fs/nfs/file.c
+++ b/fs/nfs/file.c
@@ -617,6 +617,8 @@ ssize_t nfs_file_write(struct kiocb *iocb, struct iov_iter *from)
 		if (result)
 			goto out;
 	}
+	if (iocb->ki_pos > i_size_read(inode))
+		nfs_revalidate_mapping(inode, file->f_mapping);
 
 	nfs_start_io_write(inode);
 	result = generic_write_checks(iocb, from);
@@ -750,7 +752,7 @@ do_setlk(struct file *filp, int cmd, struct file_lock *fl, int is_local)
 	 */
 	nfs_sync_mapping(filp->f_mapping);
 	if (!NFS_PROTO(inode)->have_delegation(inode, FMODE_READ))
-		nfs_zap_mapping(inode, filp->f_mapping);
+		nfs_zap_caches(inode);
 out:
 	return status;
 }
diff --git a/fs/nfs/filelayout/filelayout.c b/fs/nfs/filelayout/filelayout.c
index 1cf85d65b748..44c638b7876c 100644
--- a/fs/nfs/filelayout/filelayout.c
+++ b/fs/nfs/filelayout/filelayout.c
@@ -126,32 +126,13 @@ static int filelayout_async_handle_error(struct rpc_task *task,
 {
 	struct pnfs_layout_hdr *lo = lseg->pls_layout;
 	struct inode *inode = lo->plh_inode;
-	struct nfs_server *mds_server = NFS_SERVER(inode);
 	struct nfs4_deviceid_node *devid = FILELAYOUT_DEVID_NODE(lseg);
-	struct nfs_client *mds_client = mds_server->nfs_client;
 	struct nfs4_slot_table *tbl = &clp->cl_session->fc_slot_table;
 
 	if (task->tk_status >= 0)
 		return 0;
 
 	switch (task->tk_status) {
-	/* MDS state errors */
-	case -NFS4ERR_DELEG_REVOKED:
-	case -NFS4ERR_ADMIN_REVOKED:
-	case -NFS4ERR_BAD_STATEID:
-	case -NFS4ERR_OPENMODE:
-		if (state == NULL)
-			break;
-		if (nfs4_schedule_stateid_recovery(mds_server, state) < 0)
-			goto out_bad_stateid;
-		goto wait_on_recovery;
-	case -NFS4ERR_EXPIRED:
-		if (state != NULL) {
-			if (nfs4_schedule_stateid_recovery(mds_server, state) < 0)
-				goto out_bad_stateid;
-		}
-		nfs4_schedule_lease_recovery(mds_client);
-		goto wait_on_recovery;
 	/* DS session errors */
 	case -NFS4ERR_BADSESSION:
 	case -NFS4ERR_BADSLOT:
@@ -172,6 +153,7 @@ static int filelayout_async_handle_error(struct rpc_task *task,
 	case -NFS4ERR_RETRY_UNCACHED_REP:
 		break;
 	/* Invalidate Layout errors */
+	case -NFS4ERR_ACCESS:
 	case -NFS4ERR_PNFS_NO_LAYOUT:
 	case -ESTALE:           /* mapped NFS4ERR_STALE */
 	case -EBADHANDLE:       /* mapped NFS4ERR_BADHANDLE */
@@ -202,26 +184,17 @@ static int filelayout_async_handle_error(struct rpc_task *task,
 			task->tk_status);
 		nfs4_mark_deviceid_unavailable(devid);
 		pnfs_error_mark_layout_for_return(inode, lseg);
+		pnfs_set_lo_fail(lseg);
 		rpc_wake_up(&tbl->slot_tbl_waitq);
 		/* fall through */
 	default:
-		pnfs_set_lo_fail(lseg);
 reset:
 		dprintk("%s Retry through MDS. Error %d\n", __func__,
 			task->tk_status);
 		return -NFS4ERR_RESET_TO_MDS;
 	}
-out:
 	task->tk_status = 0;
 	return -EAGAIN;
-out_bad_stateid:
-	task->tk_status = -EIO;
-	return 0;
-wait_on_recovery:
-	rpc_sleep_on(&mds_client->cl_rpcwaitq, task, NULL);
-	if (test_bit(NFS4CLNT_MANAGER_RUNNING, &mds_client->cl_state) == 0)
-		rpc_wake_up_queued_task(&mds_client->cl_rpcwaitq, task);
-	goto out;
 }
 
 /* NFS_PROTO call done callback routines */
@@ -569,6 +542,10 @@ filelayout_check_deviceid(struct pnfs_layout_hdr *lo,
 	struct nfs4_file_layout_dsaddr *dsaddr;
 	int status = -EINVAL;
 
+	/* Is the deviceid already set? If so, we're good. */
+	if (fl->dsaddr != NULL)
+		return 0;
+
 	/* find and reference the deviceid */
 	d = nfs4_find_get_deviceid(NFS_SERVER(lo->plh_inode), &fl->deviceid,
 			lo->plh_lc_cred, gfp_flags);
@@ -580,8 +557,6 @@ filelayout_check_deviceid(struct pnfs_layout_hdr *lo,
 	if (filelayout_test_devid_unavailable(&dsaddr->id_node))
 		goto out_put;
 
-	fl->dsaddr = dsaddr;
-
 	if (fl->first_stripe_index >= dsaddr->stripe_count) {
 		dprintk("%s Bad first_stripe_index %u\n",
 				__func__, fl->first_stripe_index);
@@ -597,6 +572,13 @@ filelayout_check_deviceid(struct pnfs_layout_hdr *lo,
 		goto out_put;
 	}
 	status = 0;
+
+	/*
+	 * Atomic compare and xchange to ensure we don't scribble
+	 * over a non-NULL pointer.
+	 */
+	if (cmpxchg(&fl->dsaddr, NULL, dsaddr) != NULL)
+		goto out_put;
 out:
 	return status;
 out_put:
diff --git a/fs/nfs/flexfilelayout/flexfilelayout.c b/fs/nfs/flexfilelayout/flexfilelayout.c
index 23542dc44a25..b0fa83a60754 100644
--- a/fs/nfs/flexfilelayout/flexfilelayout.c
+++ b/fs/nfs/flexfilelayout/flexfilelayout.c
@@ -1050,34 +1050,10 @@ static int ff_layout_async_handle_error_v4(struct rpc_task *task,
 {
 	struct pnfs_layout_hdr *lo = lseg->pls_layout;
 	struct inode *inode = lo->plh_inode;
-	struct nfs_server *mds_server = NFS_SERVER(inode);
-
 	struct nfs4_deviceid_node *devid = FF_LAYOUT_DEVID_NODE(lseg, idx);
-	struct nfs_client *mds_client = mds_server->nfs_client;
 	struct nfs4_slot_table *tbl = &clp->cl_session->fc_slot_table;
 
 	switch (task->tk_status) {
-	/* MDS state errors */
-	case -NFS4ERR_DELEG_REVOKED:
-	case -NFS4ERR_ADMIN_REVOKED:
-	case -NFS4ERR_BAD_STATEID:
-		if (state == NULL)
-			break;
-		nfs_remove_bad_delegation(state->inode, NULL);
-	case -NFS4ERR_OPENMODE:
-		if (state == NULL)
-			break;
-		if (nfs4_schedule_stateid_recovery(mds_server, state) < 0)
-			goto out_bad_stateid;
-		goto wait_on_recovery;
-	case -NFS4ERR_EXPIRED:
-		if (state != NULL) {
-			if (nfs4_schedule_stateid_recovery(mds_server, state) < 0)
-				goto out_bad_stateid;
-		}
-		nfs4_schedule_lease_recovery(mds_client);
-		goto wait_on_recovery;
-	/* DS session errors */
 	case -NFS4ERR_BADSESSION:
 	case -NFS4ERR_BADSLOT:
 	case -NFS4ERR_BAD_HIGH_SLOT:
@@ -1137,17 +1113,8 @@ reset:
 			task->tk_status);
 		return -NFS4ERR_RESET_TO_MDS;
 	}
-out:
 	task->tk_status = 0;
 	return -EAGAIN;
-out_bad_stateid:
-	task->tk_status = -EIO;
-	return 0;
-wait_on_recovery:
-	rpc_sleep_on(&mds_client->cl_rpcwaitq, task, NULL);
-	if (test_bit(NFS4CLNT_MANAGER_RUNNING, &mds_client->cl_state) == 0)
-		rpc_wake_up_queued_task(&mds_client->cl_rpcwaitq, task);
-	goto out;
 }
 
 /* Retry all errors through either pNFS or MDS except for -EJUKEBOX */
@@ -1875,6 +1842,10 @@ static int ff_layout_initiate_commit(struct nfs_commit_data *data, int how)
 	int vers, ret;
 	struct nfs_fh *fh;
 
+	if (!lseg || !(pnfs_is_valid_lseg(lseg) ||
+	    test_bit(NFS_LSEG_LAYOUTRETURN, &lseg->pls_flags)))
+		goto out_err;
+
 	idx = calc_ds_index_from_commit(lseg, data->ds_commit_index);
 	ds = nfs4_ff_layout_prepare_ds(lseg, idx, true);
 	if (!ds)
diff --git a/fs/nfs/flexfilelayout/flexfilelayoutdev.c b/fs/nfs/flexfilelayout/flexfilelayoutdev.c
index 6df7a0cf5660..f32c58bbe556 100644
--- a/fs/nfs/flexfilelayout/flexfilelayoutdev.c
+++ b/fs/nfs/flexfilelayout/flexfilelayoutdev.c
@@ -32,6 +32,7 @@ void nfs4_ff_layout_free_deviceid(struct nfs4_ff_layout_ds *mirror_ds)
 {
 	nfs4_print_deviceid(&mirror_ds->id_node.deviceid);
 	nfs4_pnfs_ds_put(mirror_ds->ds);
+	kfree(mirror_ds->ds_versions);
 	kfree_rcu(mirror_ds, id_node.rcu);
 }
 
diff --git a/fs/nfs/inode.c b/fs/nfs/inode.c
index 1de93ba78dc9..109279d6d91b 100644
--- a/fs/nfs/inode.c
+++ b/fs/nfs/inode.c
@@ -386,6 +386,28 @@ void nfs_setsecurity(struct inode *inode, struct nfs_fattr *fattr,
 #endif
 EXPORT_SYMBOL_GPL(nfs_setsecurity);
 
+/* Search for inode identified by fh, fileid and i_mode in inode cache. */
+struct inode *
+nfs_ilookup(struct super_block *sb, struct nfs_fattr *fattr, struct nfs_fh *fh)
+{
+	struct nfs_find_desc desc = {
+		.fh	= fh,
+		.fattr	= fattr,
+	};
+	struct inode *inode;
+	unsigned long hash;
+
+	if (!(fattr->valid & NFS_ATTR_FATTR_FILEID) ||
+	    !(fattr->valid & NFS_ATTR_FATTR_TYPE))
+		return NULL;
+
+	hash = nfs_fattr_to_ino_t(fattr);
+	inode = ilookup5(sb, hash, nfs_find_actor, &desc);
+
+	dprintk("%s: returning %p\n", __func__, inode);
+	return inode;
+}
+
 /*
  * This is our front-end to iget that looks up inodes by file handle
  * instead of inode number.
@@ -525,8 +547,14 @@ nfs_fhget(struct super_block *sb, struct nfs_fh *fh, struct nfs_fattr *fattr, st
 		nfs_fscache_init_inode(inode);
 
 		unlock_new_inode(inode);
-	} else
-		nfs_refresh_inode(inode, fattr);
+	} else {
+		int err = nfs_refresh_inode(inode, fattr);
+		if (err < 0) {
+			iput(inode);
+			inode = ERR_PTR(err);
+			goto out_no_inode;
+		}
+	}
 	dprintk("NFS: nfs_fhget(%s/%Lu fh_crc=0x%08x ct=%d)\n",
 		inode->i_sb->s_id,
 		(unsigned long long)NFS_FILEID(inode),
@@ -1315,9 +1343,9 @@ static int nfs_check_inode_attributes(struct inode *inode, struct nfs_fattr *fat
 		return 0;
 	/* Has the inode gone and changed behind our back? */
 	if ((fattr->valid & NFS_ATTR_FATTR_FILEID) && nfsi->fileid != fattr->fileid)
-		return -EIO;
+		return -ESTALE;
 	if ((fattr->valid & NFS_ATTR_FATTR_TYPE) && (inode->i_mode & S_IFMT) != (fattr->mode & S_IFMT))
-		return -EIO;
+		return -ESTALE;
 
 	if (!nfs_file_has_buffered_writers(nfsi)) {
 		/* Verify a few of the more important attributes */
diff --git a/fs/nfs/internal.h b/fs/nfs/internal.h
index 8701d7617964..dc456416d2be 100644
--- a/fs/nfs/internal.h
+++ b/fs/nfs/internal.h
@@ -11,6 +11,8 @@
 
 #define NFS_MS_MASK (MS_RDONLY|MS_NOSUID|MS_NODEV|MS_NOEXEC|MS_SYNCHRONOUS)
 
+extern const struct export_operations nfs_export_ops;
+
 struct nfs_string;
 
 /* Maximum number of readahead requests
@@ -226,8 +228,8 @@ static inline void nfs_fs_proc_exit(void)
 #endif
 
 /* callback_xdr.c */
-extern struct svc_version nfs4_callback_version1;
-extern struct svc_version nfs4_callback_version4;
+extern const struct svc_version nfs4_callback_version1;
+extern const struct svc_version nfs4_callback_version4;
 
 struct nfs_pageio_descriptor;
 /* pagelist.c */
@@ -271,19 +273,19 @@ static inline bool nfs_match_open_context(const struct nfs_open_context *ctx1,
 }
 
 /* nfs2xdr.c */
-extern struct rpc_procinfo nfs_procedures[];
+extern const struct rpc_procinfo nfs_procedures[];
 extern int nfs2_decode_dirent(struct xdr_stream *,
-				struct nfs_entry *, int);
+				struct nfs_entry *, bool);
 
 /* nfs3xdr.c */
-extern struct rpc_procinfo nfs3_procedures[];
+extern const struct rpc_procinfo nfs3_procedures[];
 extern int nfs3_decode_dirent(struct xdr_stream *,
-				struct nfs_entry *, int);
+				struct nfs_entry *, bool);
 
 /* nfs4xdr.c */
 #if IS_ENABLED(CONFIG_NFS_V4)
 extern int nfs4_decode_dirent(struct xdr_stream *,
-				struct nfs_entry *, int);
+				struct nfs_entry *, bool);
 #endif
 #ifdef CONFIG_NFS_V4_1
 extern const u32 nfs41_maxread_overhead;
@@ -293,7 +295,7 @@ extern const u32 nfs41_maxgetdevinfo_overhead;
 
 /* nfs4proc.c */
 #if IS_ENABLED(CONFIG_NFS_V4)
-extern struct rpc_procinfo nfs4_procedures[];
+extern const struct rpc_procinfo nfs4_procedures[];
 #endif
 
 #ifdef CONFIG_NFS_V4_SECURITY_LABEL
diff --git a/fs/nfs/mount_clnt.c b/fs/nfs/mount_clnt.c
index 09b190015df4..60bad882c123 100644
--- a/fs/nfs/mount_clnt.c
+++ b/fs/nfs/mount_clnt.c
@@ -304,7 +304,7 @@ static void encode_mntdirpath(struct xdr_stream *xdr, const char *pathname)
 }
 
 static void mnt_xdr_enc_dirpath(struct rpc_rqst *req, struct xdr_stream *xdr,
-				const char *dirpath)
+				const void *dirpath)
 {
 	encode_mntdirpath(xdr, dirpath);
 }
@@ -357,8 +357,9 @@ static int decode_fhandle(struct xdr_stream *xdr, struct mountres *res)
 
 static int mnt_xdr_dec_mountres(struct rpc_rqst *req,
 				struct xdr_stream *xdr,
-				struct mountres *res)
+				void *data)
 {
+	struct mountres *res = data;
 	int status;
 
 	status = decode_status(xdr, res);
@@ -449,8 +450,9 @@ static int decode_auth_flavors(struct xdr_stream *xdr, struct mountres *res)
 
 static int mnt_xdr_dec_mountres3(struct rpc_rqst *req,
 				 struct xdr_stream *xdr,
-				 struct mountres *res)
+				 void *data)
 {
+	struct mountres *res = data;
 	int status;
 
 	status = decode_fhs_status(xdr, res);
@@ -464,11 +466,11 @@ static int mnt_xdr_dec_mountres3(struct rpc_rqst *req,
 	return decode_auth_flavors(xdr, res);
 }
 
-static struct rpc_procinfo mnt_procedures[] = {
+static const struct rpc_procinfo mnt_procedures[] = {
 	[MOUNTPROC_MNT] = {
 		.p_proc		= MOUNTPROC_MNT,
-		.p_encode	= (kxdreproc_t)mnt_xdr_enc_dirpath,
-		.p_decode	= (kxdrdproc_t)mnt_xdr_dec_mountres,
+		.p_encode	= mnt_xdr_enc_dirpath,
+		.p_decode	= mnt_xdr_dec_mountres,
 		.p_arglen	= MNT_enc_dirpath_sz,
 		.p_replen	= MNT_dec_mountres_sz,
 		.p_statidx	= MOUNTPROC_MNT,
@@ -476,18 +478,18 @@ static struct rpc_procinfo mnt_procedures[] = {
 	},
 	[MOUNTPROC_UMNT] = {
 		.p_proc		= MOUNTPROC_UMNT,
-		.p_encode	= (kxdreproc_t)mnt_xdr_enc_dirpath,
+		.p_encode	= mnt_xdr_enc_dirpath,
 		.p_arglen	= MNT_enc_dirpath_sz,
 		.p_statidx	= MOUNTPROC_UMNT,
 		.p_name		= "UMOUNT",
 	},
 };
 
-static struct rpc_procinfo mnt3_procedures[] = {
+static const struct rpc_procinfo mnt3_procedures[] = {
 	[MOUNTPROC3_MNT] = {
 		.p_proc		= MOUNTPROC3_MNT,
-		.p_encode	= (kxdreproc_t)mnt_xdr_enc_dirpath,
-		.p_decode	= (kxdrdproc_t)mnt_xdr_dec_mountres3,
+		.p_encode	= mnt_xdr_enc_dirpath,
+		.p_decode	= mnt_xdr_dec_mountres3,
 		.p_arglen	= MNT_enc_dirpath_sz,
 		.p_replen	= MNT_dec_mountres3_sz,
 		.p_statidx	= MOUNTPROC3_MNT,
@@ -495,24 +497,27 @@ static struct rpc_procinfo mnt3_procedures[] = {
 	},
 	[MOUNTPROC3_UMNT] = {
 		.p_proc		= MOUNTPROC3_UMNT,
-		.p_encode	= (kxdreproc_t)mnt_xdr_enc_dirpath,
+		.p_encode	= mnt_xdr_enc_dirpath,
 		.p_arglen	= MNT_enc_dirpath_sz,
 		.p_statidx	= MOUNTPROC3_UMNT,
 		.p_name		= "UMOUNT",
 	},
 };
 
-
+static unsigned int mnt_counts[ARRAY_SIZE(mnt_procedures)];
 static const struct rpc_version mnt_version1 = {
 	.number		= 1,
 	.nrprocs	= ARRAY_SIZE(mnt_procedures),
 	.procs		= mnt_procedures,
+	.counts		= mnt_counts,
 };
 
+static unsigned int mnt3_counts[ARRAY_SIZE(mnt3_procedures)];
 static const struct rpc_version mnt_version3 = {
 	.number		= 3,
 	.nrprocs	= ARRAY_SIZE(mnt3_procedures),
 	.procs		= mnt3_procedures,
+	.counts		= mnt3_counts,
 };
 
 static const struct rpc_version *mnt_version[] = {
diff --git a/fs/nfs/nfs2xdr.c b/fs/nfs/nfs2xdr.c
index b4e03ed8599d..fe68dabfbde6 100644
--- a/fs/nfs/nfs2xdr.c
+++ b/fs/nfs/nfs2xdr.c
@@ -568,8 +568,10 @@ out_default:
 
 static void nfs2_xdr_enc_fhandle(struct rpc_rqst *req,
 				 struct xdr_stream *xdr,
-				 const struct nfs_fh *fh)
+				 const void *data)
 {
+	const struct nfs_fh *fh = data;
+
 	encode_fhandle(xdr, fh);
 }
 
@@ -583,23 +585,29 @@ static void nfs2_xdr_enc_fhandle(struct rpc_rqst *req,
  */
 static void nfs2_xdr_enc_sattrargs(struct rpc_rqst *req,
 				   struct xdr_stream *xdr,
-				   const struct nfs_sattrargs *args)
+				   const void *data)
 {
+	const struct nfs_sattrargs *args = data;
+
 	encode_fhandle(xdr, args->fh);
 	encode_sattr(xdr, args->sattr);
 }
 
 static void nfs2_xdr_enc_diropargs(struct rpc_rqst *req,
 				   struct xdr_stream *xdr,
-				   const struct nfs_diropargs *args)
+				   const void *data)
 {
+	const struct nfs_diropargs *args = data;
+
 	encode_diropargs(xdr, args->fh, args->name, args->len);
 }
 
 static void nfs2_xdr_enc_readlinkargs(struct rpc_rqst *req,
 				      struct xdr_stream *xdr,
-				      const struct nfs_readlinkargs *args)
+				      const void *data)
 {
+	const struct nfs_readlinkargs *args = data;
+
 	encode_fhandle(xdr, args->fh);
 	prepare_reply_buffer(req, args->pages, args->pgbase,
 					args->pglen, NFS_readlinkres_sz);
@@ -632,8 +640,10 @@ static void encode_readargs(struct xdr_stream *xdr,
 
 static void nfs2_xdr_enc_readargs(struct rpc_rqst *req,
 				  struct xdr_stream *xdr,
-				  const struct nfs_pgio_args *args)
+				  const void *data)
 {
+	const struct nfs_pgio_args *args = data;
+
 	encode_readargs(xdr, args);
 	prepare_reply_buffer(req, args->pages, args->pgbase,
 					args->count, NFS_readres_sz);
@@ -672,8 +682,10 @@ static void encode_writeargs(struct xdr_stream *xdr,
 
 static void nfs2_xdr_enc_writeargs(struct rpc_rqst *req,
 				   struct xdr_stream *xdr,
-				   const struct nfs_pgio_args *args)
+				   const void *data)
 {
+	const struct nfs_pgio_args *args = data;
+
 	encode_writeargs(xdr, args);
 	xdr->buf->flags |= XDRBUF_WRITE;
 }
@@ -688,16 +700,20 @@ static void nfs2_xdr_enc_writeargs(struct rpc_rqst *req,
  */
 static void nfs2_xdr_enc_createargs(struct rpc_rqst *req,
 				    struct xdr_stream *xdr,
-				    const struct nfs_createargs *args)
+				    const void *data)
 {
+	const struct nfs_createargs *args = data;
+
 	encode_diropargs(xdr, args->fh, args->name, args->len);
 	encode_sattr(xdr, args->sattr);
 }
 
 static void nfs2_xdr_enc_removeargs(struct rpc_rqst *req,
 				    struct xdr_stream *xdr,
-				    const struct nfs_removeargs *args)
+				    const void *data)
 {
+	const struct nfs_removeargs *args = data;
+
 	encode_diropargs(xdr, args->fh, args->name.name, args->name.len);
 }
 
@@ -711,8 +727,9 @@ static void nfs2_xdr_enc_removeargs(struct rpc_rqst *req,
  */
 static void nfs2_xdr_enc_renameargs(struct rpc_rqst *req,
 				    struct xdr_stream *xdr,
-				    const struct nfs_renameargs *args)
+				    const void *data)
 {
+	const struct nfs_renameargs *args = data;
 	const struct qstr *old = args->old_name;
 	const struct qstr *new = args->new_name;
 
@@ -730,8 +747,10 @@ static void nfs2_xdr_enc_renameargs(struct rpc_rqst *req,
  */
 static void nfs2_xdr_enc_linkargs(struct rpc_rqst *req,
 				  struct xdr_stream *xdr,
-				  const struct nfs_linkargs *args)
+				  const void *data)
 {
+	const struct nfs_linkargs *args = data;
+
 	encode_fhandle(xdr, args->fromfh);
 	encode_diropargs(xdr, args->tofh, args->toname, args->tolen);
 }
@@ -747,8 +766,10 @@ static void nfs2_xdr_enc_linkargs(struct rpc_rqst *req,
  */
 static void nfs2_xdr_enc_symlinkargs(struct rpc_rqst *req,
 				     struct xdr_stream *xdr,
-				     const struct nfs_symlinkargs *args)
+				     const void *data)
 {
+	const struct nfs_symlinkargs *args = data;
+
 	encode_diropargs(xdr, args->fromfh, args->fromname, args->fromlen);
 	encode_path(xdr, args->pages, args->pathlen);
 	encode_sattr(xdr, args->sattr);
@@ -777,8 +798,10 @@ static void encode_readdirargs(struct xdr_stream *xdr,
 
 static void nfs2_xdr_enc_readdirargs(struct rpc_rqst *req,
 				     struct xdr_stream *xdr,
-				     const struct nfs_readdirargs *args)
+				     const void *data)
 {
+	const struct nfs_readdirargs *args = data;
+
 	encode_readdirargs(xdr, args);
 	prepare_reply_buffer(req, args->pages, 0,
 					args->count, NFS_readdirres_sz);
@@ -809,13 +832,13 @@ out_default:
 }
 
 static int nfs2_xdr_dec_attrstat(struct rpc_rqst *req, struct xdr_stream *xdr,
-				 struct nfs_fattr *result)
+				 void *result)
 {
 	return decode_attrstat(xdr, result, NULL);
 }
 
 static int nfs2_xdr_dec_diropres(struct rpc_rqst *req, struct xdr_stream *xdr,
-				 struct nfs_diropok *result)
+				 void *result)
 {
 	return decode_diropres(xdr, result);
 }
@@ -860,8 +883,9 @@ out_default:
  *	};
  */
 static int nfs2_xdr_dec_readres(struct rpc_rqst *req, struct xdr_stream *xdr,
-				struct nfs_pgio_res *result)
+				void *data)
 {
+	struct nfs_pgio_res *result = data;
 	enum nfs_stat status;
 	int error;
 
@@ -882,8 +906,10 @@ out_default:
 }
 
 static int nfs2_xdr_dec_writeres(struct rpc_rqst *req, struct xdr_stream *xdr,
-				 struct nfs_pgio_res *result)
+				 void *data)
 {
+	struct nfs_pgio_res *result = data;
+
 	/* All NFSv2 writes are "file sync" writes */
 	result->verf->committed = NFS_FILE_SYNC;
 	return decode_attrstat(xdr, result->fattr, &result->op_status);
@@ -913,7 +939,7 @@ static int nfs2_xdr_dec_writeres(struct rpc_rqst *req, struct xdr_stream *xdr,
  *	};
  */
 int nfs2_decode_dirent(struct xdr_stream *xdr, struct nfs_entry *entry,
-		       int plus)
+		       bool plus)
 {
 	__be32 *p;
 	int error;
@@ -1034,7 +1060,7 @@ out_overflow:
 }
 
 static int nfs2_xdr_dec_statfsres(struct rpc_rqst *req, struct xdr_stream *xdr,
-				  struct nfs2_fsstat *result)
+				  void *result)
 {
 	enum nfs_stat status;
 	int error;
@@ -1118,15 +1144,15 @@ static int nfs_stat_to_errno(enum nfs_stat status)
 #define PROC(proc, argtype, restype, timer)				\
 [NFSPROC_##proc] = {							\
 	.p_proc	    =  NFSPROC_##proc,					\
-	.p_encode   =  (kxdreproc_t)nfs2_xdr_enc_##argtype,		\
-	.p_decode   =  (kxdrdproc_t)nfs2_xdr_dec_##restype,		\
+	.p_encode   =  nfs2_xdr_enc_##argtype,				\
+	.p_decode   =  nfs2_xdr_dec_##restype,				\
 	.p_arglen   =  NFS_##argtype##_sz,				\
 	.p_replen   =  NFS_##restype##_sz,				\
 	.p_timer    =  timer,						\
 	.p_statidx  =  NFSPROC_##proc,					\
 	.p_name     =  #proc,						\
 	}
-struct rpc_procinfo	nfs_procedures[] = {
+const struct rpc_procinfo nfs_procedures[] = {
 	PROC(GETATTR,	fhandle,	attrstat,	1),
 	PROC(SETATTR,	sattrargs,	attrstat,	0),
 	PROC(LOOKUP,	diropargs,	diropres,	2),
@@ -1144,8 +1170,10 @@ struct rpc_procinfo	nfs_procedures[] = {
 	PROC(STATFS,	fhandle,	statfsres,	0),
 };
 
+static unsigned int nfs_version2_counts[ARRAY_SIZE(nfs_procedures)];
 const struct rpc_version nfs_version2 = {
 	.number			= 2,
 	.nrprocs		= ARRAY_SIZE(nfs_procedures),
-	.procs			= nfs_procedures
+	.procs			= nfs_procedures,
+	.counts			= nfs_version2_counts,
 };
diff --git a/fs/nfs/nfs3proc.c b/fs/nfs/nfs3proc.c
index 0c07b567118d..d1e87ec0df84 100644
--- a/fs/nfs/nfs3proc.c
+++ b/fs/nfs/nfs3proc.c
@@ -220,15 +220,8 @@ static int nfs3_proc_access(struct inode *inode, struct nfs_access_entry *entry)
 
 	status = rpc_call_sync(NFS_CLIENT(inode), &msg, 0);
 	nfs_refresh_inode(inode, res.fattr);
-	if (status == 0) {
-		entry->mask = 0;
-		if (res.access & NFS3_ACCESS_READ)
-			entry->mask |= MAY_READ;
-		if (res.access & (NFS3_ACCESS_MODIFY | NFS3_ACCESS_EXTEND | NFS3_ACCESS_DELETE))
-			entry->mask |= MAY_WRITE;
-		if (res.access & (NFS3_ACCESS_LOOKUP|NFS3_ACCESS_EXECUTE))
-			entry->mask |= MAY_EXEC;
-	}
+	if (status == 0)
+		nfs_access_set_mask(entry, res.access);
 	nfs_free_fattr(res.fattr);
 out:
 	dprintk("NFS reply access: %d\n", status);
@@ -621,7 +614,7 @@ out:
  */
 static int
 nfs3_proc_readdir(struct dentry *dentry, struct rpc_cred *cred,
-		  u64 cookie, struct page **pages, unsigned int count, int plus)
+		  u64 cookie, struct page **pages, unsigned int count, bool plus)
 {
 	struct inode		*dir = d_inode(dentry);
 	__be32			*verf = NFS_I(dir)->cookieverf;
diff --git a/fs/nfs/nfs3xdr.c b/fs/nfs/nfs3xdr.c
index 267126d32ec0..e82c9e553224 100644
--- a/fs/nfs/nfs3xdr.c
+++ b/fs/nfs/nfs3xdr.c
@@ -846,8 +846,10 @@ static void encode_diropargs3(struct xdr_stream *xdr, const struct nfs_fh *fh,
  */
 static void nfs3_xdr_enc_getattr3args(struct rpc_rqst *req,
 				      struct xdr_stream *xdr,
-				      const struct nfs_fh *fh)
+				      const void *data)
 {
+	const struct nfs_fh *fh = data;
+
 	encode_nfs_fh3(xdr, fh);
 }
 
@@ -884,8 +886,9 @@ static void encode_sattrguard3(struct xdr_stream *xdr,
 
 static void nfs3_xdr_enc_setattr3args(struct rpc_rqst *req,
 				      struct xdr_stream *xdr,
-				      const struct nfs3_sattrargs *args)
+				      const void *data)
 {
+	const struct nfs3_sattrargs *args = data;
 	encode_nfs_fh3(xdr, args->fh);
 	encode_sattr3(xdr, args->sattr);
 	encode_sattrguard3(xdr, args);
@@ -900,8 +903,10 @@ static void nfs3_xdr_enc_setattr3args(struct rpc_rqst *req,
  */
 static void nfs3_xdr_enc_lookup3args(struct rpc_rqst *req,
 				     struct xdr_stream *xdr,
-				     const struct nfs3_diropargs *args)
+				     const void *data)
 {
+	const struct nfs3_diropargs *args = data;
+
 	encode_diropargs3(xdr, args->fh, args->name, args->len);
 }
 
@@ -922,8 +927,10 @@ static void encode_access3args(struct xdr_stream *xdr,
 
 static void nfs3_xdr_enc_access3args(struct rpc_rqst *req,
 				     struct xdr_stream *xdr,
-				     const struct nfs3_accessargs *args)
+				     const void *data)
 {
+	const struct nfs3_accessargs *args = data;
+
 	encode_access3args(xdr, args);
 }
 
@@ -936,8 +943,10 @@ static void nfs3_xdr_enc_access3args(struct rpc_rqst *req,
  */
 static void nfs3_xdr_enc_readlink3args(struct rpc_rqst *req,
 				       struct xdr_stream *xdr,
-				       const struct nfs3_readlinkargs *args)
+				       const void *data)
 {
+	const struct nfs3_readlinkargs *args = data;
+
 	encode_nfs_fh3(xdr, args->fh);
 	prepare_reply_buffer(req, args->pages, args->pgbase,
 					args->pglen, NFS3_readlinkres_sz);
@@ -966,8 +975,10 @@ static void encode_read3args(struct xdr_stream *xdr,
 
 static void nfs3_xdr_enc_read3args(struct rpc_rqst *req,
 				   struct xdr_stream *xdr,
-				   const struct nfs_pgio_args *args)
+				   const void *data)
 {
+	const struct nfs_pgio_args *args = data;
+
 	encode_read3args(xdr, args);
 	prepare_reply_buffer(req, args->pages, args->pgbase,
 					args->count, NFS3_readres_sz);
@@ -1008,8 +1019,10 @@ static void encode_write3args(struct xdr_stream *xdr,
 
 static void nfs3_xdr_enc_write3args(struct rpc_rqst *req,
 				    struct xdr_stream *xdr,
-				    const struct nfs_pgio_args *args)
+				    const void *data)
 {
+	const struct nfs_pgio_args *args = data;
+
 	encode_write3args(xdr, args);
 	xdr->buf->flags |= XDRBUF_WRITE;
 }
@@ -1055,8 +1068,10 @@ static void encode_createhow3(struct xdr_stream *xdr,
 
 static void nfs3_xdr_enc_create3args(struct rpc_rqst *req,
 				     struct xdr_stream *xdr,
-				     const struct nfs3_createargs *args)
+				     const void *data)
 {
+	const struct nfs3_createargs *args = data;
+
 	encode_diropargs3(xdr, args->fh, args->name, args->len);
 	encode_createhow3(xdr, args);
 }
@@ -1071,8 +1086,10 @@ static void nfs3_xdr_enc_create3args(struct rpc_rqst *req,
  */
 static void nfs3_xdr_enc_mkdir3args(struct rpc_rqst *req,
 				    struct xdr_stream *xdr,
-				    const struct nfs3_mkdirargs *args)
+				    const void *data)
 {
+	const struct nfs3_mkdirargs *args = data;
+
 	encode_diropargs3(xdr, args->fh, args->name, args->len);
 	encode_sattr3(xdr, args->sattr);
 }
@@ -1091,16 +1108,20 @@ static void nfs3_xdr_enc_mkdir3args(struct rpc_rqst *req,
  *	};
  */
 static void encode_symlinkdata3(struct xdr_stream *xdr,
-				const struct nfs3_symlinkargs *args)
+				const void *data)
 {
+	const struct nfs3_symlinkargs *args = data;
+
 	encode_sattr3(xdr, args->sattr);
 	encode_nfspath3(xdr, args->pages, args->pathlen);
 }
 
 static void nfs3_xdr_enc_symlink3args(struct rpc_rqst *req,
 				      struct xdr_stream *xdr,
-				      const struct nfs3_symlinkargs *args)
+				      const void *data)
 {
+	const struct nfs3_symlinkargs *args = data;
+
 	encode_diropargs3(xdr, args->fromfh, args->fromname, args->fromlen);
 	encode_symlinkdata3(xdr, args);
 	xdr->buf->flags |= XDRBUF_WRITE;
@@ -1160,8 +1181,10 @@ static void encode_mknoddata3(struct xdr_stream *xdr,
 
 static void nfs3_xdr_enc_mknod3args(struct rpc_rqst *req,
 				    struct xdr_stream *xdr,
-				    const struct nfs3_mknodargs *args)
+				    const void *data)
 {
+	const struct nfs3_mknodargs *args = data;
+
 	encode_diropargs3(xdr, args->fh, args->name, args->len);
 	encode_mknoddata3(xdr, args);
 }
@@ -1175,8 +1198,10 @@ static void nfs3_xdr_enc_mknod3args(struct rpc_rqst *req,
  */
 static void nfs3_xdr_enc_remove3args(struct rpc_rqst *req,
 				     struct xdr_stream *xdr,
-				     const struct nfs_removeargs *args)
+				     const void *data)
 {
+	const struct nfs_removeargs *args = data;
+
 	encode_diropargs3(xdr, args->fh, args->name.name, args->name.len);
 }
 
@@ -1190,8 +1215,9 @@ static void nfs3_xdr_enc_remove3args(struct rpc_rqst *req,
  */
 static void nfs3_xdr_enc_rename3args(struct rpc_rqst *req,
 				     struct xdr_stream *xdr,
-				     const struct nfs_renameargs *args)
+				     const void *data)
 {
+	const struct nfs_renameargs *args = data;
 	const struct qstr *old = args->old_name;
 	const struct qstr *new = args->new_name;
 
@@ -1209,8 +1235,10 @@ static void nfs3_xdr_enc_rename3args(struct rpc_rqst *req,
  */
 static void nfs3_xdr_enc_link3args(struct rpc_rqst *req,
 				   struct xdr_stream *xdr,
-				   const struct nfs3_linkargs *args)
+				   const void *data)
 {
+	const struct nfs3_linkargs *args = data;
+
 	encode_nfs_fh3(xdr, args->fromfh);
 	encode_diropargs3(xdr, args->tofh, args->toname, args->tolen);
 }
@@ -1240,8 +1268,10 @@ static void encode_readdir3args(struct xdr_stream *xdr,
 
 static void nfs3_xdr_enc_readdir3args(struct rpc_rqst *req,
 				      struct xdr_stream *xdr,
-				      const struct nfs3_readdirargs *args)
+				      const void *data)
 {
+	const struct nfs3_readdirargs *args = data;
+
 	encode_readdir3args(xdr, args);
 	prepare_reply_buffer(req, args->pages, 0,
 				args->count, NFS3_readdirres_sz);
@@ -1280,8 +1310,10 @@ static void encode_readdirplus3args(struct xdr_stream *xdr,
 
 static void nfs3_xdr_enc_readdirplus3args(struct rpc_rqst *req,
 					  struct xdr_stream *xdr,
-					  const struct nfs3_readdirargs *args)
+					  const void *data)
 {
+	const struct nfs3_readdirargs *args = data;
+
 	encode_readdirplus3args(xdr, args);
 	prepare_reply_buffer(req, args->pages, 0,
 				args->count, NFS3_readdirres_sz);
@@ -1310,8 +1342,10 @@ static void encode_commit3args(struct xdr_stream *xdr,
 
 static void nfs3_xdr_enc_commit3args(struct rpc_rqst *req,
 				     struct xdr_stream *xdr,
-				     const struct nfs_commitargs *args)
+				     const void *data)
 {
+	const struct nfs_commitargs *args = data;
+
 	encode_commit3args(xdr, args);
 }
 
@@ -1319,8 +1353,10 @@ static void nfs3_xdr_enc_commit3args(struct rpc_rqst *req,
 
 static void nfs3_xdr_enc_getacl3args(struct rpc_rqst *req,
 				     struct xdr_stream *xdr,
-				     const struct nfs3_getaclargs *args)
+				     const void *data)
 {
+	const struct nfs3_getaclargs *args = data;
+
 	encode_nfs_fh3(xdr, args->fh);
 	encode_uint32(xdr, args->mask);
 	if (args->mask & (NFS_ACL | NFS_DFACL))
@@ -1331,8 +1367,9 @@ static void nfs3_xdr_enc_getacl3args(struct rpc_rqst *req,
 
 static void nfs3_xdr_enc_setacl3args(struct rpc_rqst *req,
 				     struct xdr_stream *xdr,
-				     const struct nfs3_setaclargs *args)
+				     const void *data)
 {
+	const struct nfs3_setaclargs *args = data;
 	unsigned int base;
 	int error;
 
@@ -1382,7 +1419,7 @@ static void nfs3_xdr_enc_setacl3args(struct rpc_rqst *req,
  */
 static int nfs3_xdr_dec_getattr3res(struct rpc_rqst *req,
 				    struct xdr_stream *xdr,
-				    struct nfs_fattr *result)
+				    void *result)
 {
 	enum nfs_stat status;
 	int error;
@@ -1419,7 +1456,7 @@ out_default:
  */
 static int nfs3_xdr_dec_setattr3res(struct rpc_rqst *req,
 				    struct xdr_stream *xdr,
-				    struct nfs_fattr *result)
+				    void *result)
 {
 	enum nfs_stat status;
 	int error;
@@ -1460,8 +1497,9 @@ out_status:
  */
 static int nfs3_xdr_dec_lookup3res(struct rpc_rqst *req,
 				   struct xdr_stream *xdr,
-				   struct nfs3_diropres *result)
+				   void *data)
 {
+	struct nfs3_diropres *result = data;
 	enum nfs_stat status;
 	int error;
 
@@ -1507,8 +1545,9 @@ out_default:
  */
 static int nfs3_xdr_dec_access3res(struct rpc_rqst *req,
 				   struct xdr_stream *xdr,
-				   struct nfs3_accessres *result)
+				   void *data)
 {
+	struct nfs3_accessres *result = data;
 	enum nfs_stat status;
 	int error;
 
@@ -1548,7 +1587,7 @@ out_default:
  */
 static int nfs3_xdr_dec_readlink3res(struct rpc_rqst *req,
 				     struct xdr_stream *xdr,
-				     struct nfs_fattr *result)
+				     void *result)
 {
 	enum nfs_stat status;
 	int error;
@@ -1626,8 +1665,9 @@ out_overflow:
 }
 
 static int nfs3_xdr_dec_read3res(struct rpc_rqst *req, struct xdr_stream *xdr,
-				 struct nfs_pgio_res *result)
+				 void *data)
 {
+	struct nfs_pgio_res *result = data;
 	enum nfs_stat status;
 	int error;
 
@@ -1699,8 +1739,9 @@ out_eio:
 }
 
 static int nfs3_xdr_dec_write3res(struct rpc_rqst *req, struct xdr_stream *xdr,
-				  struct nfs_pgio_res *result)
+				  void *data)
 {
+	struct nfs_pgio_res *result = data;
 	enum nfs_stat status;
 	int error;
 
@@ -1764,8 +1805,9 @@ out:
 
 static int nfs3_xdr_dec_create3res(struct rpc_rqst *req,
 				   struct xdr_stream *xdr,
-				   struct nfs3_diropres *result)
+				   void *data)
 {
+	struct nfs3_diropres *result = data;
 	enum nfs_stat status;
 	int error;
 
@@ -1804,8 +1846,9 @@ out_default:
  */
 static int nfs3_xdr_dec_remove3res(struct rpc_rqst *req,
 				   struct xdr_stream *xdr,
-				   struct nfs_removeres *result)
+				   void *data)
 {
+	struct nfs_removeres *result = data;
 	enum nfs_stat status;
 	int error;
 
@@ -1845,8 +1888,9 @@ out_status:
  */
 static int nfs3_xdr_dec_rename3res(struct rpc_rqst *req,
 				   struct xdr_stream *xdr,
-				   struct nfs_renameres *result)
+				   void *data)
 {
+	struct nfs_renameres *result = data;
 	enum nfs_stat status;
 	int error;
 
@@ -1888,8 +1932,9 @@ out_status:
  *	};
  */
 static int nfs3_xdr_dec_link3res(struct rpc_rqst *req, struct xdr_stream *xdr,
-				 struct nfs3_linkres *result)
+				 void *data)
 {
+	struct nfs3_linkres *result = data;
 	enum nfs_stat status;
 	int error;
 
@@ -1946,7 +1991,7 @@ out_status:
  *	};
  */
 int nfs3_decode_dirent(struct xdr_stream *xdr, struct nfs_entry *entry,
-		       int plus)
+		       bool plus)
 {
 	struct nfs_entry old = *entry;
 	__be32 *p;
@@ -2072,8 +2117,9 @@ out:
 
 static int nfs3_xdr_dec_readdir3res(struct rpc_rqst *req,
 				    struct xdr_stream *xdr,
-				    struct nfs3_readdirres *result)
+				    void *data)
 {
+	struct nfs3_readdirres *result = data;
 	enum nfs_stat status;
 	int error;
 
@@ -2140,8 +2186,9 @@ out_overflow:
 
 static int nfs3_xdr_dec_fsstat3res(struct rpc_rqst *req,
 				   struct xdr_stream *xdr,
-				   struct nfs_fsstat *result)
+				   void *data)
 {
+	struct nfs_fsstat *result = data;
 	enum nfs_stat status;
 	int error;
 
@@ -2216,8 +2263,9 @@ out_overflow:
 
 static int nfs3_xdr_dec_fsinfo3res(struct rpc_rqst *req,
 				   struct xdr_stream *xdr,
-				   struct nfs_fsinfo *result)
+				   void *data)
 {
+	struct nfs_fsinfo *result = data;
 	enum nfs_stat status;
 	int error;
 
@@ -2279,8 +2327,9 @@ out_overflow:
 
 static int nfs3_xdr_dec_pathconf3res(struct rpc_rqst *req,
 				     struct xdr_stream *xdr,
-				     struct nfs_pathconf *result)
+				     void *data)
 {
+	struct nfs_pathconf *result = data;
 	enum nfs_stat status;
 	int error;
 
@@ -2320,8 +2369,9 @@ out_status:
  */
 static int nfs3_xdr_dec_commit3res(struct rpc_rqst *req,
 				   struct xdr_stream *xdr,
-				   struct nfs_commitres *result)
+				   void *data)
 {
+	struct nfs_commitres *result = data;
 	enum nfs_stat status;
 	int error;
 
@@ -2389,7 +2439,7 @@ out:
 
 static int nfs3_xdr_dec_getacl3res(struct rpc_rqst *req,
 				   struct xdr_stream *xdr,
-				   struct nfs3_getaclres *result)
+				   void *result)
 {
 	enum nfs_stat status;
 	int error;
@@ -2408,7 +2458,7 @@ out_default:
 
 static int nfs3_xdr_dec_setacl3res(struct rpc_rqst *req,
 				   struct xdr_stream *xdr,
-				   struct nfs_fattr *result)
+				   void *result)
 {
 	enum nfs_stat status;
 	int error;
@@ -2495,8 +2545,8 @@ static int nfs3_stat_to_errno(enum nfs_stat status)
 #define PROC(proc, argtype, restype, timer)				\
 [NFS3PROC_##proc] = {							\
 	.p_proc      = NFS3PROC_##proc,					\
-	.p_encode    = (kxdreproc_t)nfs3_xdr_enc_##argtype##3args,	\
-	.p_decode    = (kxdrdproc_t)nfs3_xdr_dec_##restype##3res,	\
+	.p_encode    = nfs3_xdr_enc_##argtype##3args,			\
+	.p_decode    = nfs3_xdr_dec_##restype##3res,			\
 	.p_arglen    = NFS3_##argtype##args_sz,				\
 	.p_replen    = NFS3_##restype##res_sz,				\
 	.p_timer     = timer,						\
@@ -2504,7 +2554,7 @@ static int nfs3_stat_to_errno(enum nfs_stat status)
 	.p_name      = #proc,						\
 	}
 
-struct rpc_procinfo	nfs3_procedures[] = {
+const struct rpc_procinfo nfs3_procedures[] = {
 	PROC(GETATTR,		getattr,	getattr,	1),
 	PROC(SETATTR,		setattr,	setattr,	0),
 	PROC(LOOKUP,		lookup,		lookup,		2),
@@ -2528,18 +2578,20 @@ struct rpc_procinfo	nfs3_procedures[] = {
 	PROC(COMMIT,		commit,		commit,		5),
 };
 
+static unsigned int nfs_version3_counts[ARRAY_SIZE(nfs3_procedures)];
 const struct rpc_version nfs_version3 = {
 	.number			= 3,
 	.nrprocs		= ARRAY_SIZE(nfs3_procedures),
-	.procs			= nfs3_procedures
+	.procs			= nfs3_procedures,
+	.counts			= nfs_version3_counts,
 };
 
 #ifdef CONFIG_NFS_V3_ACL
-static struct rpc_procinfo	nfs3_acl_procedures[] = {
+static const struct rpc_procinfo nfs3_acl_procedures[] = {
 	[ACLPROC3_GETACL] = {
 		.p_proc = ACLPROC3_GETACL,
-		.p_encode = (kxdreproc_t)nfs3_xdr_enc_getacl3args,
-		.p_decode = (kxdrdproc_t)nfs3_xdr_dec_getacl3res,
+		.p_encode = nfs3_xdr_enc_getacl3args,
+		.p_decode = nfs3_xdr_dec_getacl3res,
 		.p_arglen = ACL3_getaclargs_sz,
 		.p_replen = ACL3_getaclres_sz,
 		.p_timer = 1,
@@ -2547,8 +2599,8 @@ static struct rpc_procinfo	nfs3_acl_procedures[] = {
 	},
 	[ACLPROC3_SETACL] = {
 		.p_proc = ACLPROC3_SETACL,
-		.p_encode = (kxdreproc_t)nfs3_xdr_enc_setacl3args,
-		.p_decode = (kxdrdproc_t)nfs3_xdr_dec_setacl3res,
+		.p_encode = nfs3_xdr_enc_setacl3args,
+		.p_decode = nfs3_xdr_dec_setacl3res,
 		.p_arglen = ACL3_setaclargs_sz,
 		.p_replen = ACL3_setaclres_sz,
 		.p_timer = 0,
@@ -2556,10 +2608,11 @@ static struct rpc_procinfo	nfs3_acl_procedures[] = {
 	},
 };
 
+static unsigned int nfs3_acl_counts[ARRAY_SIZE(nfs3_acl_procedures)];
 const struct rpc_version nfsacl_version3 = {
 	.number			= 3,
-	.nrprocs		= sizeof(nfs3_acl_procedures)/
-				  sizeof(nfs3_acl_procedures[0]),
+	.nrprocs		= ARRAY_SIZE(nfs3_acl_procedures),
 	.procs			= nfs3_acl_procedures,
+	.counts			= nfs3_acl_counts,
 };
 #endif  /* CONFIG_NFS_V3_ACL */
diff --git a/fs/nfs/nfs42proc.c b/fs/nfs/nfs42proc.c
index 319a47db218d..6c2db51e67a7 100644
--- a/fs/nfs/nfs42proc.c
+++ b/fs/nfs/nfs42proc.c
@@ -146,7 +146,7 @@ static ssize_t _nfs42_proc_copy(struct file *src,
 	loff_t pos_src = args->src_pos;
 	loff_t pos_dst = args->dst_pos;
 	size_t count = args->count;
-	int status;
+	ssize_t status;
 
 	status = nfs4_set_rw_stateid(&args->src_stateid, src_lock->open_context,
 				     src_lock, FMODE_READ);
diff --git a/fs/nfs/nfs42xdr.c b/fs/nfs/nfs42xdr.c
index 528362f69cc1..5ee1b0f0d904 100644
--- a/fs/nfs/nfs42xdr.c
+++ b/fs/nfs/nfs42xdr.c
@@ -112,7 +112,7 @@
 					 decode_getattr_maxsz)
 
 static void encode_fallocate(struct xdr_stream *xdr,
-			     struct nfs42_falloc_args *args)
+			     const struct nfs42_falloc_args *args)
 {
 	encode_nfs4_stateid(xdr, &args->falloc_stateid);
 	encode_uint64(xdr, args->falloc_offset);
@@ -120,7 +120,7 @@ static void encode_fallocate(struct xdr_stream *xdr,
 }
 
 static void encode_allocate(struct xdr_stream *xdr,
-			    struct nfs42_falloc_args *args,
+			    const struct nfs42_falloc_args *args,
 			    struct compound_hdr *hdr)
 {
 	encode_op_hdr(xdr, OP_ALLOCATE, decode_allocate_maxsz, hdr);
@@ -128,7 +128,7 @@ static void encode_allocate(struct xdr_stream *xdr,
 }
 
 static void encode_copy(struct xdr_stream *xdr,
-			struct nfs42_copy_args *args,
+			const struct nfs42_copy_args *args,
 			struct compound_hdr *hdr)
 {
 	encode_op_hdr(xdr, OP_COPY, decode_copy_maxsz, hdr);
@@ -145,7 +145,7 @@ static void encode_copy(struct xdr_stream *xdr,
 }
 
 static void encode_deallocate(struct xdr_stream *xdr,
-			      struct nfs42_falloc_args *args,
+			      const struct nfs42_falloc_args *args,
 			      struct compound_hdr *hdr)
 {
 	encode_op_hdr(xdr, OP_DEALLOCATE, decode_deallocate_maxsz, hdr);
@@ -153,7 +153,7 @@ static void encode_deallocate(struct xdr_stream *xdr,
 }
 
 static void encode_seek(struct xdr_stream *xdr,
-			struct nfs42_seek_args *args,
+			const struct nfs42_seek_args *args,
 			struct compound_hdr *hdr)
 {
 	encode_op_hdr(xdr, OP_SEEK, decode_seek_maxsz, hdr);
@@ -163,7 +163,7 @@ static void encode_seek(struct xdr_stream *xdr,
 }
 
 static void encode_layoutstats(struct xdr_stream *xdr,
-			       struct nfs42_layoutstat_args *args,
+			       const struct nfs42_layoutstat_args *args,
 			       struct nfs42_layoutstat_devinfo *devinfo,
 			       struct compound_hdr *hdr)
 {
@@ -191,7 +191,7 @@ static void encode_layoutstats(struct xdr_stream *xdr,
 }
 
 static void encode_clone(struct xdr_stream *xdr,
-			 struct nfs42_clone_args *args,
+			 const struct nfs42_clone_args *args,
 			 struct compound_hdr *hdr)
 {
 	__be32 *p;
@@ -210,8 +210,9 @@ static void encode_clone(struct xdr_stream *xdr,
  */
 static void nfs4_xdr_enc_allocate(struct rpc_rqst *req,
 				  struct xdr_stream *xdr,
-				  struct nfs42_falloc_args *args)
+				  const void *data)
 {
+	const struct nfs42_falloc_args *args = data;
 	struct compound_hdr hdr = {
 		.minorversion = nfs4_xdr_minorversion(&args->seq_args),
 	};
@@ -225,7 +226,7 @@ static void nfs4_xdr_enc_allocate(struct rpc_rqst *req,
 }
 
 static void encode_copy_commit(struct xdr_stream *xdr,
-			  struct nfs42_copy_args *args,
+			  const struct nfs42_copy_args *args,
 			  struct compound_hdr *hdr)
 {
 	__be32 *p;
@@ -241,8 +242,9 @@ static void encode_copy_commit(struct xdr_stream *xdr,
  */
 static void nfs4_xdr_enc_copy(struct rpc_rqst *req,
 			      struct xdr_stream *xdr,
-			      struct nfs42_copy_args *args)
+			      const void *data)
 {
+	const struct nfs42_copy_args *args = data;
 	struct compound_hdr hdr = {
 		.minorversion = nfs4_xdr_minorversion(&args->seq_args),
 	};
@@ -262,8 +264,9 @@ static void nfs4_xdr_enc_copy(struct rpc_rqst *req,
  */
 static void nfs4_xdr_enc_deallocate(struct rpc_rqst *req,
 				    struct xdr_stream *xdr,
-				    struct nfs42_falloc_args *args)
+				    const void *data)
 {
+	const struct nfs42_falloc_args *args = data;
 	struct compound_hdr hdr = {
 		.minorversion = nfs4_xdr_minorversion(&args->seq_args),
 	};
@@ -281,8 +284,9 @@ static void nfs4_xdr_enc_deallocate(struct rpc_rqst *req,
  */
 static void nfs4_xdr_enc_seek(struct rpc_rqst *req,
 			      struct xdr_stream *xdr,
-			      struct nfs42_seek_args *args)
+			      const void *data)
 {
+	const struct nfs42_seek_args *args = data;
 	struct compound_hdr hdr = {
 		.minorversion = nfs4_xdr_minorversion(&args->seq_args),
 	};
@@ -299,8 +303,9 @@ static void nfs4_xdr_enc_seek(struct rpc_rqst *req,
  */
 static void nfs4_xdr_enc_layoutstats(struct rpc_rqst *req,
 				     struct xdr_stream *xdr,
-				     struct nfs42_layoutstat_args *args)
+				     const void *data)
 {
+	const struct nfs42_layoutstat_args *args = data;
 	int i;
 
 	struct compound_hdr hdr = {
@@ -321,8 +326,9 @@ static void nfs4_xdr_enc_layoutstats(struct rpc_rqst *req,
  */
 static void nfs4_xdr_enc_clone(struct rpc_rqst *req,
 			       struct xdr_stream *xdr,
-			       struct nfs42_clone_args *args)
+			       const void *data)
 {
+	const struct nfs42_clone_args *args = data;
 	struct compound_hdr hdr = {
 		.minorversion = nfs4_xdr_minorversion(&args->seq_args),
 	};
@@ -448,8 +454,9 @@ static int decode_clone(struct xdr_stream *xdr)
  */
 static int nfs4_xdr_dec_allocate(struct rpc_rqst *rqstp,
 				 struct xdr_stream *xdr,
-				 struct nfs42_falloc_res *res)
+				 void *data)
 {
+	struct nfs42_falloc_res *res = data;
 	struct compound_hdr hdr;
 	int status;
 
@@ -475,8 +482,9 @@ out:
  */
 static int nfs4_xdr_dec_copy(struct rpc_rqst *rqstp,
 			     struct xdr_stream *xdr,
-			     struct nfs42_copy_res *res)
+			     void *data)
 {
+	struct nfs42_copy_res *res = data;
 	struct compound_hdr hdr;
 	int status;
 
@@ -508,8 +516,9 @@ out:
  */
 static int nfs4_xdr_dec_deallocate(struct rpc_rqst *rqstp,
 				   struct xdr_stream *xdr,
-				   struct nfs42_falloc_res *res)
+				   void *data)
 {
+	struct nfs42_falloc_res *res = data;
 	struct compound_hdr hdr;
 	int status;
 
@@ -535,8 +544,9 @@ out:
  */
 static int nfs4_xdr_dec_seek(struct rpc_rqst *rqstp,
 			     struct xdr_stream *xdr,
-			     struct nfs42_seek_res *res)
+			     void *data)
 {
+	struct nfs42_seek_res *res = data;
 	struct compound_hdr hdr;
 	int status;
 
@@ -559,8 +569,9 @@ out:
  */
 static int nfs4_xdr_dec_layoutstats(struct rpc_rqst *rqstp,
 				    struct xdr_stream *xdr,
-				    struct nfs42_layoutstat_res *res)
+				    void *data)
 {
+	struct nfs42_layoutstat_res *res = data;
 	struct compound_hdr hdr;
 	int status, i;
 
@@ -589,8 +600,9 @@ out:
  */
 static int nfs4_xdr_dec_clone(struct rpc_rqst *rqstp,
 			      struct xdr_stream *xdr,
-			      struct nfs42_clone_res *res)
+			      void *data)
 {
+	struct nfs42_clone_res *res = data;
 	struct compound_hdr hdr;
 	int status;
 
diff --git a/fs/nfs/nfs4_fs.h b/fs/nfs/nfs4_fs.h
index af285cc27ccf..40bd05f05e74 100644
--- a/fs/nfs/nfs4_fs.h
+++ b/fs/nfs/nfs4_fs.h
@@ -493,13 +493,13 @@ static inline void nfs4_unregister_sysctl(void)
 #endif
 
 /* nfs4xdr.c */
-extern struct rpc_procinfo nfs4_procedures[];
+extern const struct rpc_procinfo nfs4_procedures[];
 
 struct nfs4_mount_data;
 
 /* callback_xdr.c */
-extern struct svc_version nfs4_callback_version1;
-extern struct svc_version nfs4_callback_version4;
+extern const struct svc_version nfs4_callback_version1;
+extern const struct svc_version nfs4_callback_version4;
 
 static inline void nfs4_stateid_copy(nfs4_stateid *dst, const nfs4_stateid *src)
 {
diff --git a/fs/nfs/nfs4client.c b/fs/nfs/nfs4client.c
index 66776f022111..e9bea90dc017 100644
--- a/fs/nfs/nfs4client.c
+++ b/fs/nfs/nfs4client.c
@@ -414,6 +414,7 @@ struct nfs_client *nfs4_init_client(struct nfs_client *clp,
 	if (clp != old)
 		clp->cl_preserve_clid = true;
 	nfs_put_client(clp);
+	clear_bit(NFS_CS_TSM_POSSIBLE, &clp->cl_flags);
 	return old;
 
 error:
@@ -659,9 +660,6 @@ int nfs4_detect_session_trunking(struct nfs_client *clp,
 	if (!nfs4_check_server_scope(clp->cl_serverscope, res->server_scope))
 		goto out_err;
 
-	/* Session trunking passed, add the xprt */
-	rpc_clnt_xprt_switch_add_xprt(clp->cl_rpcclient, xprt);
-
 	pr_info("NFS:  %s: Session trunking succeeded for %s\n",
 		clp->cl_hostname,
 		xprt->address_strings[RPC_DISPLAY_ADDR]);
@@ -852,6 +850,8 @@ static int nfs4_set_client(struct nfs_server *server,
 		set_bit(NFS_CS_NORESVPORT, &cl_init.init_flags);
 	if (server->options & NFS_OPTION_MIGRATION)
 		set_bit(NFS_CS_MIGRATION, &cl_init.init_flags);
+	if (test_bit(NFS_MIG_TSM_POSSIBLE, &server->mig_status))
+		set_bit(NFS_CS_TSM_POSSIBLE, &cl_init.init_flags);
 
 	/* Allocate or find a client reference we can use */
 	clp = nfs_get_client(&cl_init);
@@ -1212,9 +1212,11 @@ int nfs4_update_server(struct nfs_server *server, const char *hostname,
 		return -EAFNOSUPPORT;
 
 	nfs_server_remove_lists(server);
+	set_bit(NFS_MIG_TSM_POSSIBLE, &server->mig_status);
 	error = nfs4_set_client(server, hostname, sap, salen, buf,
 				clp->cl_proto, clnt->cl_timeout,
 				clp->cl_minorversion, net);
+	clear_bit(NFS_MIG_TSM_POSSIBLE, &server->mig_status);
 	nfs_put_client(clp);
 	if (error != 0) {
 		nfs_server_insert_lists(server);
diff --git a/fs/nfs/nfs4idmap.c b/fs/nfs/nfs4idmap.c
index 835c163f61af..dd5d27da8c0c 100644
--- a/fs/nfs/nfs4idmap.c
+++ b/fs/nfs/nfs4idmap.c
@@ -364,7 +364,8 @@ static int nfs_idmap_lookup_id(const char *name, size_t namelen, const char *typ
 		ret = -EINVAL;
 	} else {
 		ret = kstrtol(id_str, 10, &id_long);
-		*id = (__u32)id_long;
+		if (!ret)
+			*id = (__u32)id_long;
 	}
 	return ret;
 }
diff --git a/fs/nfs/nfs4proc.c b/fs/nfs/nfs4proc.c
index 98b0b662af09..d90132642340 100644
--- a/fs/nfs/nfs4proc.c
+++ b/fs/nfs/nfs4proc.c
@@ -275,6 +275,7 @@ const u32 nfs4_fs_locations_bitmap[3] = {
 static void nfs4_setup_readdir(u64 cookie, __be32 *verifier, struct dentry *dentry,
 		struct nfs4_readdir_arg *readdir)
 {
+	unsigned int attrs = FATTR4_WORD0_FILEID | FATTR4_WORD0_TYPE;
 	__be32 *start, *p;
 
 	if (cookie > 2) {
@@ -305,8 +306,9 @@ static void nfs4_setup_readdir(u64 cookie, __be32 *verifier, struct dentry *dent
 		memcpy(p, ".\0\0\0", 4);                        /* entry */
 		p++;
 		*p++ = xdr_one;                         /* bitmap length */
-		*p++ = htonl(FATTR4_WORD0_FILEID);             /* bitmap */
-		*p++ = htonl(8);              /* attribute buffer length */
+		*p++ = htonl(attrs);                           /* bitmap */
+		*p++ = htonl(12);             /* attribute buffer length */
+		*p++ = htonl(NF4DIR);
 		p = xdr_encode_hyper(p, NFS_FILEID(d_inode(dentry)));
 	}
 	
@@ -317,8 +319,9 @@ static void nfs4_setup_readdir(u64 cookie, __be32 *verifier, struct dentry *dent
 	memcpy(p, "..\0\0", 4);                         /* entry */
 	p++;
 	*p++ = xdr_one;                         /* bitmap length */
-	*p++ = htonl(FATTR4_WORD0_FILEID);             /* bitmap */
-	*p++ = htonl(8);              /* attribute buffer length */
+	*p++ = htonl(attrs);                           /* bitmap */
+	*p++ = htonl(12);             /* attribute buffer length */
+	*p++ = htonl(NF4DIR);
 	p = xdr_encode_hyper(p, NFS_FILEID(d_inode(dentry->d_parent)));
 
 	readdir->pgbase = (char *)p - (char *)start;
@@ -1034,11 +1037,11 @@ struct nfs4_opendata {
 	struct nfs4_state *state;
 	struct iattr attrs;
 	unsigned long timestamp;
-	unsigned int rpc_done : 1;
-	unsigned int file_created : 1;
-	unsigned int is_recover : 1;
+	bool rpc_done;
+	bool file_created;
+	bool is_recover;
+	bool cancelled;
 	int rpc_status;
-	int cancelled;
 };
 
 static bool nfs4_clear_cap_atomic_open_v1(struct nfs_server *server,
@@ -1962,7 +1965,7 @@ static void nfs4_open_confirm_done(struct rpc_task *task, void *calldata)
 		nfs4_stateid_copy(&data->o_res.stateid, &data->c_res.stateid);
 		nfs_confirm_seqid(&data->owner->so_seqid, 0);
 		renew_lease(data->o_res.server, data->timestamp);
-		data->rpc_done = 1;
+		data->rpc_done = true;
 	}
 }
 
@@ -1972,7 +1975,7 @@ static void nfs4_open_confirm_release(void *calldata)
 	struct nfs4_state *state = NULL;
 
 	/* If this request hasn't been cancelled, do nothing */
-	if (data->cancelled == 0)
+	if (!data->cancelled)
 		goto out_free;
 	/* In case of error, no cleanup! */
 	if (!data->rpc_done)
@@ -2015,7 +2018,7 @@ static int _nfs4_proc_open_confirm(struct nfs4_opendata *data)
 
 	nfs4_init_sequence(&data->c_arg.seq_args, &data->c_res.seq_res, 1);
 	kref_get(&data->kref);
-	data->rpc_done = 0;
+	data->rpc_done = false;
 	data->rpc_status = 0;
 	data->timestamp = jiffies;
 	if (data->is_recover)
@@ -2025,7 +2028,7 @@ static int _nfs4_proc_open_confirm(struct nfs4_opendata *data)
 		return PTR_ERR(task);
 	status = rpc_wait_for_completion_task(task);
 	if (status != 0) {
-		data->cancelled = 1;
+		data->cancelled = true;
 		smp_wmb();
 	} else
 		status = data->rpc_status;
@@ -2124,7 +2127,7 @@ static void nfs4_open_done(struct rpc_task *task, void *calldata)
 		if (!(data->o_res.rflags & NFS4_OPEN_RESULT_CONFIRM))
 			nfs_confirm_seqid(&data->owner->so_seqid, 0);
 	}
-	data->rpc_done = 1;
+	data->rpc_done = true;
 }
 
 static void nfs4_open_release(void *calldata)
@@ -2133,7 +2136,7 @@ static void nfs4_open_release(void *calldata)
 	struct nfs4_state *state = NULL;
 
 	/* If this request hasn't been cancelled, do nothing */
-	if (data->cancelled == 0)
+	if (!data->cancelled)
 		goto out_free;
 	/* In case of error, no cleanup! */
 	if (data->rpc_status != 0 || !data->rpc_done)
@@ -2179,20 +2182,20 @@ static int nfs4_run_open_task(struct nfs4_opendata *data, int isrecover)
 
 	nfs4_init_sequence(&o_arg->seq_args, &o_res->seq_res, 1);
 	kref_get(&data->kref);
-	data->rpc_done = 0;
+	data->rpc_done = false;
 	data->rpc_status = 0;
-	data->cancelled = 0;
-	data->is_recover = 0;
+	data->cancelled = false;
+	data->is_recover = false;
 	if (isrecover) {
 		nfs4_set_sequence_privileged(&o_arg->seq_args);
-		data->is_recover = 1;
+		data->is_recover = true;
 	}
 	task = rpc_run_task(&task_setup_data);
 	if (IS_ERR(task))
 		return PTR_ERR(task);
 	status = rpc_wait_for_completion_task(task);
 	if (status != 0) {
-		data->cancelled = 1;
+		data->cancelled = true;
 		smp_wmb();
 	} else
 		status = data->rpc_status;
@@ -2233,7 +2236,7 @@ static int nfs4_opendata_access(struct rpc_cred *cred,
 				int openflags)
 {
 	struct nfs_access_entry cache;
-	u32 mask;
+	u32 mask, flags;
 
 	/* access call failed or for some reason the server doesn't
 	 * support any access modes -- defer access call until later */
@@ -2247,16 +2250,20 @@ static int nfs4_opendata_access(struct rpc_cred *cred,
 	 */
 	if (openflags & __FMODE_EXEC) {
 		/* ONLY check for exec rights */
-		mask = MAY_EXEC;
+		if (S_ISDIR(state->inode->i_mode))
+			mask = NFS4_ACCESS_LOOKUP;
+		else
+			mask = NFS4_ACCESS_EXECUTE;
 	} else if ((fmode & FMODE_READ) && !opendata->file_created)
-		mask = MAY_READ;
+		mask = NFS4_ACCESS_READ;
 
 	cache.cred = cred;
 	cache.jiffies = jiffies;
 	nfs_access_set_mask(&cache, opendata->o_res.access_result);
 	nfs_access_add_cache(state->inode, &cache);
 
-	if ((mask & ~cache.mask & (MAY_READ | MAY_EXEC)) == 0)
+	flags = NFS4_ACCESS_READ | NFS4_ACCESS_EXECUTE | NFS4_ACCESS_LOOKUP;
+	if ((mask & ~cache.mask & flags) == 0)
 		return 0;
 
 	return -EACCES;
@@ -2287,9 +2294,9 @@ static int _nfs4_proc_open(struct nfs4_opendata *data)
 
 	if (o_arg->open_flags & O_CREAT) {
 		if (o_arg->open_flags & O_EXCL)
-			data->file_created = 1;
+			data->file_created = true;
 		else if (o_res->cinfo.before != o_res->cinfo.after)
-			data->file_created = 1;
+			data->file_created = true;
 		if (data->file_created || dir->i_version != o_res->cinfo.after)
 			update_changeattr(dir, &o_res->cinfo,
 					o_res->f_attr->time_start);
@@ -2546,9 +2553,8 @@ static int nfs41_check_open_stateid(struct nfs4_state *state)
 		clear_bit(NFS_O_RDWR_STATE, &state->flags);
 		clear_bit(NFS_OPEN_STATE, &state->flags);
 		stateid->type = NFS4_INVALID_STATEID_TYPE;
-	}
-	if (status != NFS_OK)
 		return status;
+	}
 	if (nfs_open_stateid_recover_openmode(state))
 		return -NFS4ERR_OPENMODE;
 	return NFS_OK;
@@ -3803,6 +3809,54 @@ nfs4_proc_lookup_mountpoint(struct inode *dir, const struct qstr *name,
 	return (client == NFS_CLIENT(dir)) ? rpc_clone_client(client) : client;
 }
 
+static int _nfs4_proc_lookupp(struct inode *inode,
+		struct nfs_fh *fhandle, struct nfs_fattr *fattr,
+		struct nfs4_label *label)
+{
+	struct rpc_clnt *clnt = NFS_CLIENT(inode);
+	struct nfs_server *server = NFS_SERVER(inode);
+	int		       status;
+	struct nfs4_lookupp_arg args = {
+		.bitmask = server->attr_bitmask,
+		.fh = NFS_FH(inode),
+	};
+	struct nfs4_lookupp_res res = {
+		.server = server,
+		.fattr = fattr,
+		.label = label,
+		.fh = fhandle,
+	};
+	struct rpc_message msg = {
+		.rpc_proc = &nfs4_procedures[NFSPROC4_CLNT_LOOKUPP],
+		.rpc_argp = &args,
+		.rpc_resp = &res,
+	};
+
+	args.bitmask = nfs4_bitmask(server, label);
+
+	nfs_fattr_init(fattr);
+
+	dprintk("NFS call  lookupp ino=0x%lx\n", inode->i_ino);
+	status = nfs4_call_sync(clnt, server, &msg, &args.seq_args,
+				&res.seq_res, 0);
+	dprintk("NFS reply lookupp: %d\n", status);
+	return status;
+}
+
+static int nfs4_proc_lookupp(struct inode *inode, struct nfs_fh *fhandle,
+			     struct nfs_fattr *fattr, struct nfs4_label *label)
+{
+	struct nfs4_exception exception = { };
+	int err;
+	do {
+		err = _nfs4_proc_lookupp(inode, fhandle, fattr, label);
+		trace_nfs4_lookupp(inode, err);
+		err = nfs4_handle_exception(NFS_SERVER(inode), err,
+				&exception);
+	} while (exception.retry);
+	return err;
+}
+
 static int _nfs4_proc_access(struct inode *inode, struct nfs_access_entry *entry)
 {
 	struct nfs_server *server = NFS_SERVER(inode);
@@ -4273,7 +4327,7 @@ static int nfs4_proc_mkdir(struct inode *dir, struct dentry *dentry,
 }
 
 static int _nfs4_proc_readdir(struct dentry *dentry, struct rpc_cred *cred,
-		u64 cookie, struct page **pages, unsigned int count, int plus)
+		u64 cookie, struct page **pages, unsigned int count, bool plus)
 {
 	struct inode		*dir = d_inode(dentry);
 	struct nfs4_readdir_arg args = {
@@ -4311,7 +4365,7 @@ static int _nfs4_proc_readdir(struct dentry *dentry, struct rpc_cred *cred,
 }
 
 static int nfs4_proc_readdir(struct dentry *dentry, struct rpc_cred *cred,
-		u64 cookie, struct page **pages, unsigned int count, int plus)
+		u64 cookie, struct page **pages, unsigned int count, bool plus)
 {
 	struct nfs4_exception exception = { };
 	int err;
@@ -6135,7 +6189,7 @@ static void nfs4_lock_release(void *calldata)
 
 	dprintk("%s: begin!\n", __func__);
 	nfs_free_seqid(data->arg.open_seqid);
-	if (data->cancelled != 0) {
+	if (data->cancelled) {
 		struct rpc_task *task;
 		task = nfs4_do_unlck(&data->fl, data->ctx, data->lsp,
 				data->arg.lock_seqid);
@@ -6218,7 +6272,7 @@ static int _nfs4_do_setlk(struct nfs4_state *state, int cmd, struct file_lock *f
 			nfs4_handle_setlk_error(data->server, data->lsp,
 					data->arg.new_lock_owner, ret);
 	} else
-		data->cancelled = 1;
+		data->cancelled = true;
 	rpc_put_task(task);
 	dprintk("%s: done, ret = %d!\n", __func__, ret);
 	trace_nfs4_set_lock(fl, state, &data->res.stateid, cmd, ret);
@@ -6441,7 +6495,7 @@ nfs4_retry_setlk(struct nfs4_state *state, int cmd, struct file_lock *request)
 		set_current_state(TASK_INTERRUPTIBLE);
 		spin_unlock_irqrestore(&q->lock, flags);
 
-		freezable_schedule_timeout_interruptible(NFS4_LOCK_MAXTIMEOUT);
+		freezable_schedule_timeout(NFS4_LOCK_MAXTIMEOUT);
 	}
 
 	finish_wait(q, &wait);
@@ -7376,12 +7430,11 @@ static void nfs4_exchange_id_done(struct rpc_task *task, void *data)
 	if (status == 0) {
 		clp->cl_clientid = cdata->res.clientid;
 		clp->cl_exchange_flags = cdata->res.flags;
+		clp->cl_seqid = cdata->res.seqid;
 		/* Client ID is not confirmed */
-		if (!(cdata->res.flags & EXCHGID4_FLAG_CONFIRMED_R)) {
+		if (!(cdata->res.flags & EXCHGID4_FLAG_CONFIRMED_R))
 			clear_bit(NFS4_SESSION_ESTABLISHED,
-			&clp->cl_session->session_state);
-			clp->cl_seqid = cdata->res.seqid;
-		}
+				  &clp->cl_session->session_state);
 
 		kfree(clp->cl_serverowner);
 		clp->cl_serverowner = cdata->res.server_owner;
@@ -7407,7 +7460,7 @@ static void nfs4_exchange_id_done(struct rpc_task *task, void *data)
 			cdata->res.server_scope = NULL;
 		}
 		/* Save the EXCHANGE_ID verifier session trunk tests */
-		memcpy(clp->cl_confirm.data, cdata->args.verifier->data,
+		memcpy(clp->cl_confirm.data, cdata->args.verifier.data,
 		       sizeof(clp->cl_confirm.data));
 	}
 out:
@@ -7420,10 +7473,6 @@ static void nfs4_exchange_id_release(void *data)
 	struct nfs41_exchange_id_data *cdata =
 					(struct nfs41_exchange_id_data *)data;
 
-	if (cdata->xprt) {
-		xprt_put(cdata->xprt);
-		rpc_clnt_xprt_switch_put(cdata->args.client->cl_rpcclient);
-	}
 	nfs_put_client(cdata->args.client);
 	kfree(cdata->res.impl_id);
 	kfree(cdata->res.server_scope);
@@ -7444,7 +7493,6 @@ static const struct rpc_call_ops nfs4_exchange_id_call_ops = {
 static int _nfs4_proc_exchange_id(struct nfs_client *clp, struct rpc_cred *cred,
 			u32 sp4_how, struct rpc_xprt *xprt)
 {
-	nfs4_verifier verifier;
 	struct rpc_message msg = {
 		.rpc_proc = &nfs4_procedures[NFSPROC4_CLNT_EXCHANGE_ID],
 		.rpc_cred = cred,
@@ -7453,7 +7501,7 @@ static int _nfs4_proc_exchange_id(struct nfs_client *clp, struct rpc_cred *cred,
 		.rpc_client = clp->cl_rpcclient,
 		.callback_ops = &nfs4_exchange_id_call_ops,
 		.rpc_message = &msg,
-		.flags = RPC_TASK_ASYNC | RPC_TASK_TIMEOUT,
+		.flags = RPC_TASK_TIMEOUT,
 	};
 	struct nfs41_exchange_id_data *calldata;
 	struct rpc_task *task;
@@ -7468,8 +7516,7 @@ static int _nfs4_proc_exchange_id(struct nfs_client *clp, struct rpc_cred *cred,
 		return -ENOMEM;
 	}
 
-	if (!xprt)
-		nfs4_init_boot_verifier(clp, &verifier);
+	nfs4_init_boot_verifier(clp, &calldata->args.verifier);
 
 	status = nfs4_init_uniform_client_string(clp);
 	if (status)
@@ -7508,11 +7555,9 @@ static int _nfs4_proc_exchange_id(struct nfs_client *clp, struct rpc_cred *cred,
 	if (xprt) {
 		calldata->xprt = xprt;
 		task_setup_data.rpc_xprt = xprt;
-		task_setup_data.flags =
-				RPC_TASK_SOFT|RPC_TASK_SOFTCONN|RPC_TASK_ASYNC;
-		calldata->args.verifier = &clp->cl_confirm;
-	} else {
-		calldata->args.verifier = &verifier;
+		task_setup_data.flags |= RPC_TASK_SOFTCONN;
+		memcpy(calldata->args.verifier.data, clp->cl_confirm.data,
+				sizeof(calldata->args.verifier.data));
 	}
 	calldata->args.client = clp;
 #ifdef CONFIG_NFS_V4_1_MIGRATION
@@ -7531,12 +7576,7 @@ static int _nfs4_proc_exchange_id(struct nfs_client *clp, struct rpc_cred *cred,
 	if (IS_ERR(task))
 		return PTR_ERR(task);
 
-	if (!xprt) {
-		status = rpc_wait_for_completion_task(task);
-		if (!status)
-			status = calldata->rpc_status;
-	} else	/* session trunking test */
-		status = calldata->rpc_status;
+	status = calldata->rpc_status;
 
 	rpc_put_task(task);
 out:
@@ -9313,6 +9353,7 @@ const struct nfs_rpc_ops nfs_v4_clientops = {
 	.getattr	= nfs4_proc_getattr,
 	.setattr	= nfs4_proc_setattr,
 	.lookup		= nfs4_proc_lookup,
+	.lookupp	= nfs4_proc_lookupp,
 	.access		= nfs4_proc_access,
 	.readlink	= nfs4_proc_readlink,
 	.create		= nfs4_proc_create,
diff --git a/fs/nfs/nfs4state.c b/fs/nfs/nfs4state.c
index cbf82b0d4467..0378e2257ca7 100644
--- a/fs/nfs/nfs4state.c
+++ b/fs/nfs/nfs4state.c
@@ -352,11 +352,17 @@ int nfs41_discover_server_trunking(struct nfs_client *clp,
 	if (clp != *result)
 		return 0;
 
-	/* Purge state if the client id was established in a prior instance */
-	if (clp->cl_exchange_flags & EXCHGID4_FLAG_CONFIRMED_R)
-		set_bit(NFS4CLNT_PURGE_STATE, &clp->cl_state);
-	else
-		set_bit(NFS4CLNT_LEASE_CONFIRM, &clp->cl_state);
+	/*
+	 * Purge state if the client id was established in a prior
+	 * instance and the client id could not have arrived on the
+	 * server via Transparent State Migration.
+	 */
+	if (clp->cl_exchange_flags & EXCHGID4_FLAG_CONFIRMED_R) {
+		if (!test_bit(NFS_CS_TSM_POSSIBLE, &clp->cl_flags))
+			set_bit(NFS4CLNT_PURGE_STATE, &clp->cl_state);
+		else
+			set_bit(NFS4CLNT_LEASE_CONFIRM, &clp->cl_state);
+	}
 	nfs4_schedule_state_manager(clp);
 	status = nfs_wait_client_init_complete(clp);
 	if (status < 0)
diff --git a/fs/nfs/nfs4trace.h b/fs/nfs/nfs4trace.h
index 845d0eadefc9..be1da19c65d6 100644
--- a/fs/nfs/nfs4trace.h
+++ b/fs/nfs/nfs4trace.h
@@ -891,6 +891,35 @@ DEFINE_NFS4_LOOKUP_EVENT(nfs4_remove);
 DEFINE_NFS4_LOOKUP_EVENT(nfs4_get_fs_locations);
 DEFINE_NFS4_LOOKUP_EVENT(nfs4_secinfo);
 
+TRACE_EVENT(nfs4_lookupp,
+		TP_PROTO(
+			const struct inode *inode,
+			int error
+		),
+
+		TP_ARGS(inode, error),
+
+		TP_STRUCT__entry(
+			__field(dev_t, dev)
+			__field(u64, ino)
+			__field(int, error)
+		),
+
+		TP_fast_assign(
+			__entry->dev = inode->i_sb->s_dev;
+			__entry->ino = NFS_FILEID(inode);
+			__entry->error = error;
+		),
+
+		TP_printk(
+			"error=%d (%s) inode=%02x:%02x:%llu",
+			__entry->error,
+			show_nfsv4_errors(__entry->error),
+			MAJOR(__entry->dev), MINOR(__entry->dev),
+			(unsigned long long)__entry->ino
+		)
+);
+
 TRACE_EVENT(nfs4_rename,
 		TP_PROTO(
 			const struct inode *olddir,
diff --git a/fs/nfs/nfs4xdr.c b/fs/nfs/nfs4xdr.c
index 3aebfdc82b30..37c8af003275 100644
--- a/fs/nfs/nfs4xdr.c
+++ b/fs/nfs/nfs4xdr.c
@@ -159,6 +159,8 @@ static int nfs4_stat_to_errno(int);
 				(op_decode_hdr_maxsz)
 #define encode_lookup_maxsz	(op_encode_hdr_maxsz + nfs4_name_maxsz)
 #define decode_lookup_maxsz	(op_decode_hdr_maxsz)
+#define encode_lookupp_maxsz	(op_encode_hdr_maxsz)
+#define decode_lookupp_maxsz	(op_decode_hdr_maxsz)
 #define encode_share_access_maxsz \
 				(2)
 #define encode_createmode_maxsz	(1 + encode_attrs_maxsz + encode_verifier_maxsz)
@@ -618,6 +620,18 @@ static int nfs4_stat_to_errno(int);
 				decode_lookup_maxsz + \
 				decode_getattr_maxsz + \
 				decode_getfh_maxsz)
+#define NFS4_enc_lookupp_sz	(compound_encode_hdr_maxsz + \
+				encode_sequence_maxsz + \
+				encode_putfh_maxsz + \
+				encode_lookupp_maxsz + \
+				encode_getattr_maxsz + \
+				encode_getfh_maxsz)
+#define NFS4_dec_lookupp_sz	(compound_decode_hdr_maxsz + \
+				decode_sequence_maxsz + \
+				decode_putfh_maxsz + \
+				decode_lookupp_maxsz + \
+				decode_getattr_maxsz + \
+				decode_getfh_maxsz)
 #define NFS4_enc_lookup_root_sz (compound_encode_hdr_maxsz + \
 				encode_sequence_maxsz + \
 				encode_putrootfh_maxsz + \
@@ -1368,6 +1382,11 @@ static void encode_lookup(struct xdr_stream *xdr, const struct qstr *name, struc
 	encode_string(xdr, name->len, name->name);
 }
 
+static void encode_lookupp(struct xdr_stream *xdr, struct compound_hdr *hdr)
+{
+	encode_op_hdr(xdr, OP_LOOKUPP, decode_lookupp_maxsz, hdr);
+}
+
 static void encode_share_access(struct xdr_stream *xdr, u32 share_access)
 {
 	__be32 *p;
@@ -1651,7 +1670,8 @@ encode_restorefh(struct xdr_stream *xdr, struct compound_hdr *hdr)
 }
 
 static void
-encode_setacl(struct xdr_stream *xdr, struct nfs_setaclargs *arg, struct compound_hdr *hdr)
+encode_setacl(struct xdr_stream *xdr, const struct nfs_setaclargs *arg,
+		struct compound_hdr *hdr)
 {
 	__be32 *p;
 
@@ -1735,7 +1755,7 @@ static void encode_secinfo(struct xdr_stream *xdr, const struct qstr *name, stru
 #if defined(CONFIG_NFS_V4_1)
 /* NFSv4.1 operations */
 static void encode_bind_conn_to_session(struct xdr_stream *xdr,
-				   struct nfs41_bind_conn_to_session_args *args,
+				   const struct nfs41_bind_conn_to_session_args *args,
 				   struct compound_hdr *hdr)
 {
 	__be32 *p;
@@ -1748,7 +1768,7 @@ static void encode_bind_conn_to_session(struct xdr_stream *xdr,
 	*p = (args->use_conn_in_rdma_mode) ? cpu_to_be32(1) : cpu_to_be32(0);
 }
 
-static void encode_op_map(struct xdr_stream *xdr, struct nfs4_op_map *op_map)
+static void encode_op_map(struct xdr_stream *xdr, const struct nfs4_op_map *op_map)
 {
 	unsigned int i;
 	encode_uint32(xdr, NFS4_OP_MAP_NUM_WORDS);
@@ -1757,7 +1777,7 @@ static void encode_op_map(struct xdr_stream *xdr, struct nfs4_op_map *op_map)
 }
 
 static void encode_exchange_id(struct xdr_stream *xdr,
-			       struct nfs41_exchange_id_args *args,
+			       const struct nfs41_exchange_id_args *args,
 			       struct compound_hdr *hdr)
 {
 	__be32 *p;
@@ -1765,7 +1785,7 @@ static void encode_exchange_id(struct xdr_stream *xdr,
 	int len = 0;
 
 	encode_op_hdr(xdr, OP_EXCHANGE_ID, decode_exchange_id_maxsz, hdr);
-	encode_nfs4_verifier(xdr, args->verifier);
+	encode_nfs4_verifier(xdr, &args->verifier);
 
 	encode_string(xdr, strlen(args->client->cl_owner_id),
 			args->client->cl_owner_id);
@@ -1809,7 +1829,7 @@ static void encode_exchange_id(struct xdr_stream *xdr,
 }
 
 static void encode_create_session(struct xdr_stream *xdr,
-				  struct nfs41_create_session_args *args,
+				  const struct nfs41_create_session_args *args,
 				  struct compound_hdr *hdr)
 {
 	__be32 *p;
@@ -1862,7 +1882,7 @@ static void encode_create_session(struct xdr_stream *xdr,
 }
 
 static void encode_destroy_session(struct xdr_stream *xdr,
-				   struct nfs4_session *session,
+				   const struct nfs4_session *session,
 				   struct compound_hdr *hdr)
 {
 	encode_op_hdr(xdr, OP_DESTROY_SESSION, decode_destroy_session_maxsz, hdr);
@@ -1878,7 +1898,7 @@ static void encode_destroy_clientid(struct xdr_stream *xdr,
 }
 
 static void encode_reclaim_complete(struct xdr_stream *xdr,
-				    struct nfs41_reclaim_complete_args *args,
+				    const struct nfs41_reclaim_complete_args *args,
 				    struct compound_hdr *hdr)
 {
 	encode_op_hdr(xdr, OP_RECLAIM_COMPLETE, decode_reclaim_complete_maxsz, hdr);
@@ -1974,7 +1994,7 @@ encode_layoutget(struct xdr_stream *xdr,
 static int
 encode_layoutcommit(struct xdr_stream *xdr,
 		    struct inode *inode,
-		    struct nfs4_layoutcommit_args *args,
+		    const struct nfs4_layoutcommit_args *args,
 		    struct compound_hdr *hdr)
 {
 	__be32 *p;
@@ -2044,7 +2064,7 @@ encode_secinfo_no_name(struct xdr_stream *xdr,
 }
 
 static void encode_test_stateid(struct xdr_stream *xdr,
-				struct nfs41_test_stateid_args *args,
+				const struct nfs41_test_stateid_args *args,
 				struct compound_hdr *hdr)
 {
 	encode_op_hdr(xdr, OP_TEST_STATEID, decode_test_stateid_maxsz, hdr);
@@ -2053,7 +2073,7 @@ static void encode_test_stateid(struct xdr_stream *xdr,
 }
 
 static void encode_free_stateid(struct xdr_stream *xdr,
-				struct nfs41_free_stateid_args *args,
+				const struct nfs41_free_stateid_args *args,
 				struct compound_hdr *hdr)
 {
 	encode_op_hdr(xdr, OP_FREE_STATEID, decode_free_stateid_maxsz, hdr);
@@ -2086,8 +2106,9 @@ static u32 nfs4_xdr_minorversion(const struct nfs4_sequence_args *args)
  * Encode an ACCESS request
  */
 static void nfs4_xdr_enc_access(struct rpc_rqst *req, struct xdr_stream *xdr,
-				const struct nfs4_accessargs *args)
+				const void *data)
 {
+	const struct nfs4_accessargs *args = data;
 	struct compound_hdr hdr = {
 		.minorversion = nfs4_xdr_minorversion(&args->seq_args),
 	};
@@ -2104,8 +2125,9 @@ static void nfs4_xdr_enc_access(struct rpc_rqst *req, struct xdr_stream *xdr,
  * Encode LOOKUP request
  */
 static void nfs4_xdr_enc_lookup(struct rpc_rqst *req, struct xdr_stream *xdr,
-				const struct nfs4_lookup_arg *args)
+				const void *data)
 {
+	const struct nfs4_lookup_arg *args = data;
 	struct compound_hdr hdr = {
 		.minorversion = nfs4_xdr_minorversion(&args->seq_args),
 	};
@@ -2120,12 +2142,33 @@ static void nfs4_xdr_enc_lookup(struct rpc_rqst *req, struct xdr_stream *xdr,
 }
 
 /*
+ * Encode LOOKUPP request
+ */
+static void nfs4_xdr_enc_lookupp(struct rpc_rqst *req, struct xdr_stream *xdr,
+		const void *data)
+{
+	const struct nfs4_lookupp_arg *args = data;
+	struct compound_hdr hdr = {
+		.minorversion = nfs4_xdr_minorversion(&args->seq_args),
+	};
+
+	encode_compound_hdr(xdr, req, &hdr);
+	encode_sequence(xdr, &args->seq_args, &hdr);
+	encode_putfh(xdr, args->fh, &hdr);
+	encode_lookupp(xdr, &hdr);
+	encode_getfh(xdr, &hdr);
+	encode_getfattr(xdr, args->bitmask, &hdr);
+	encode_nops(&hdr);
+}
+
+/*
  * Encode LOOKUP_ROOT request
  */
 static void nfs4_xdr_enc_lookup_root(struct rpc_rqst *req,
 				     struct xdr_stream *xdr,
-				     const struct nfs4_lookup_root_arg *args)
+				     const void *data)
 {
+	const struct nfs4_lookup_root_arg *args = data;
 	struct compound_hdr hdr = {
 		.minorversion = nfs4_xdr_minorversion(&args->seq_args),
 	};
@@ -2142,8 +2185,9 @@ static void nfs4_xdr_enc_lookup_root(struct rpc_rqst *req,
  * Encode REMOVE request
  */
 static void nfs4_xdr_enc_remove(struct rpc_rqst *req, struct xdr_stream *xdr,
-				const struct nfs_removeargs *args)
+				const void *data)
 {
+	const struct nfs_removeargs *args = data;
 	struct compound_hdr hdr = {
 		.minorversion = nfs4_xdr_minorversion(&args->seq_args),
 	};
@@ -2159,8 +2203,9 @@ static void nfs4_xdr_enc_remove(struct rpc_rqst *req, struct xdr_stream *xdr,
  * Encode RENAME request
  */
 static void nfs4_xdr_enc_rename(struct rpc_rqst *req, struct xdr_stream *xdr,
-				const struct nfs_renameargs *args)
+				const void *data)
 {
+	const struct nfs_renameargs *args = data;
 	struct compound_hdr hdr = {
 		.minorversion = nfs4_xdr_minorversion(&args->seq_args),
 	};
@@ -2178,8 +2223,9 @@ static void nfs4_xdr_enc_rename(struct rpc_rqst *req, struct xdr_stream *xdr,
  * Encode LINK request
  */
 static void nfs4_xdr_enc_link(struct rpc_rqst *req, struct xdr_stream *xdr,
-			     const struct nfs4_link_arg *args)
+			      const void *data)
 {
+	const struct nfs4_link_arg *args = data;
 	struct compound_hdr hdr = {
 		.minorversion = nfs4_xdr_minorversion(&args->seq_args),
 	};
@@ -2199,8 +2245,9 @@ static void nfs4_xdr_enc_link(struct rpc_rqst *req, struct xdr_stream *xdr,
  * Encode CREATE request
  */
 static void nfs4_xdr_enc_create(struct rpc_rqst *req, struct xdr_stream *xdr,
-				const struct nfs4_create_arg *args)
+				const void *data)
 {
+	const struct nfs4_create_arg *args = data;
 	struct compound_hdr hdr = {
 		.minorversion = nfs4_xdr_minorversion(&args->seq_args),
 	};
@@ -2218,8 +2265,10 @@ static void nfs4_xdr_enc_create(struct rpc_rqst *req, struct xdr_stream *xdr,
  * Encode SYMLINK request
  */
 static void nfs4_xdr_enc_symlink(struct rpc_rqst *req, struct xdr_stream *xdr,
-				 const struct nfs4_create_arg *args)
+				 const void *data)
 {
+	const struct nfs4_create_arg *args = data;
+
 	nfs4_xdr_enc_create(req, xdr, args);
 }
 
@@ -2227,8 +2276,9 @@ static void nfs4_xdr_enc_symlink(struct rpc_rqst *req, struct xdr_stream *xdr,
  * Encode GETATTR request
  */
 static void nfs4_xdr_enc_getattr(struct rpc_rqst *req, struct xdr_stream *xdr,
-				 const struct nfs4_getattr_arg *args)
+				 const void *data)
 {
+	const struct nfs4_getattr_arg *args = data;
 	struct compound_hdr hdr = {
 		.minorversion = nfs4_xdr_minorversion(&args->seq_args),
 	};
@@ -2244,8 +2294,9 @@ static void nfs4_xdr_enc_getattr(struct rpc_rqst *req, struct xdr_stream *xdr,
  * Encode a CLOSE request
  */
 static void nfs4_xdr_enc_close(struct rpc_rqst *req, struct xdr_stream *xdr,
-			       struct nfs_closeargs *args)
+			       const void *data)
 {
+	const struct nfs_closeargs *args = data;
 	struct compound_hdr hdr = {
 		.minorversion = nfs4_xdr_minorversion(&args->seq_args),
 	};
@@ -2265,8 +2316,9 @@ static void nfs4_xdr_enc_close(struct rpc_rqst *req, struct xdr_stream *xdr,
  * Encode an OPEN request
  */
 static void nfs4_xdr_enc_open(struct rpc_rqst *req, struct xdr_stream *xdr,
-			      struct nfs_openargs *args)
+			      const void *data)
 {
+	const struct nfs_openargs *args = data;
 	struct compound_hdr hdr = {
 		.minorversion = nfs4_xdr_minorversion(&args->seq_args),
 	};
@@ -2287,8 +2339,9 @@ static void nfs4_xdr_enc_open(struct rpc_rqst *req, struct xdr_stream *xdr,
  */
 static void nfs4_xdr_enc_open_confirm(struct rpc_rqst *req,
 				      struct xdr_stream *xdr,
-				      struct nfs_open_confirmargs *args)
+				      const void *data)
 {
+	const struct nfs_open_confirmargs *args = data;
 	struct compound_hdr hdr = {
 		.nops   = 0,
 	};
@@ -2304,8 +2357,9 @@ static void nfs4_xdr_enc_open_confirm(struct rpc_rqst *req,
  */
 static void nfs4_xdr_enc_open_noattr(struct rpc_rqst *req,
 				     struct xdr_stream *xdr,
-				     struct nfs_openargs *args)
+				     const void *data)
 {
+	const struct nfs_openargs *args = data;
 	struct compound_hdr hdr = {
 		.minorversion = nfs4_xdr_minorversion(&args->seq_args),
 	};
@@ -2325,8 +2379,9 @@ static void nfs4_xdr_enc_open_noattr(struct rpc_rqst *req,
  */
 static void nfs4_xdr_enc_open_downgrade(struct rpc_rqst *req,
 					struct xdr_stream *xdr,
-					struct nfs_closeargs *args)
+					const void *data)
 {
+	const struct nfs_closeargs *args = data;
 	struct compound_hdr hdr = {
 		.minorversion = nfs4_xdr_minorversion(&args->seq_args),
 	};
@@ -2344,8 +2399,9 @@ static void nfs4_xdr_enc_open_downgrade(struct rpc_rqst *req,
  * Encode a LOCK request
  */
 static void nfs4_xdr_enc_lock(struct rpc_rqst *req, struct xdr_stream *xdr,
-			      struct nfs_lock_args *args)
+			      const void *data)
 {
+	const struct nfs_lock_args *args = data;
 	struct compound_hdr hdr = {
 		.minorversion = nfs4_xdr_minorversion(&args->seq_args),
 	};
@@ -2361,8 +2417,9 @@ static void nfs4_xdr_enc_lock(struct rpc_rqst *req, struct xdr_stream *xdr,
  * Encode a LOCKT request
  */
 static void nfs4_xdr_enc_lockt(struct rpc_rqst *req, struct xdr_stream *xdr,
-			       struct nfs_lockt_args *args)
+			       const void *data)
 {
+	const struct nfs_lockt_args *args = data;
 	struct compound_hdr hdr = {
 		.minorversion = nfs4_xdr_minorversion(&args->seq_args),
 	};
@@ -2378,8 +2435,9 @@ static void nfs4_xdr_enc_lockt(struct rpc_rqst *req, struct xdr_stream *xdr,
  * Encode a LOCKU request
  */
 static void nfs4_xdr_enc_locku(struct rpc_rqst *req, struct xdr_stream *xdr,
-			       struct nfs_locku_args *args)
+			       const void *data)
 {
+	const struct nfs_locku_args *args = data;
 	struct compound_hdr hdr = {
 		.minorversion = nfs4_xdr_minorversion(&args->seq_args),
 	};
@@ -2393,8 +2451,9 @@ static void nfs4_xdr_enc_locku(struct rpc_rqst *req, struct xdr_stream *xdr,
 
 static void nfs4_xdr_enc_release_lockowner(struct rpc_rqst *req,
 					   struct xdr_stream *xdr,
-					struct nfs_release_lockowner_args *args)
+					   const void *data)
 {
+	const struct nfs_release_lockowner_args *args = data;
 	struct compound_hdr hdr = {
 		.minorversion = 0,
 	};
@@ -2408,8 +2467,9 @@ static void nfs4_xdr_enc_release_lockowner(struct rpc_rqst *req,
  * Encode a READLINK request
  */
 static void nfs4_xdr_enc_readlink(struct rpc_rqst *req, struct xdr_stream *xdr,
-				  const struct nfs4_readlink *args)
+				  const void *data)
 {
+	const struct nfs4_readlink *args = data;
 	struct compound_hdr hdr = {
 		.minorversion = nfs4_xdr_minorversion(&args->seq_args),
 	};
@@ -2428,8 +2488,9 @@ static void nfs4_xdr_enc_readlink(struct rpc_rqst *req, struct xdr_stream *xdr,
  * Encode a READDIR request
  */
 static void nfs4_xdr_enc_readdir(struct rpc_rqst *req, struct xdr_stream *xdr,
-				 const struct nfs4_readdir_arg *args)
+				 const void *data)
 {
+	const struct nfs4_readdir_arg *args = data;
 	struct compound_hdr hdr = {
 		.minorversion = nfs4_xdr_minorversion(&args->seq_args),
 	};
@@ -2451,8 +2512,9 @@ static void nfs4_xdr_enc_readdir(struct rpc_rqst *req, struct xdr_stream *xdr,
  * Encode a READ request
  */
 static void nfs4_xdr_enc_read(struct rpc_rqst *req, struct xdr_stream *xdr,
-			      struct nfs_pgio_args *args)
+			      const void *data)
 {
+	const struct nfs_pgio_args *args = data;
 	struct compound_hdr hdr = {
 		.minorversion = nfs4_xdr_minorversion(&args->seq_args),
 	};
@@ -2472,8 +2534,9 @@ static void nfs4_xdr_enc_read(struct rpc_rqst *req, struct xdr_stream *xdr,
  * Encode an SETATTR request
  */
 static void nfs4_xdr_enc_setattr(struct rpc_rqst *req, struct xdr_stream *xdr,
-				 struct nfs_setattrargs *args)
+				 const void *data)
 {
+	const struct nfs_setattrargs *args = data;
 	struct compound_hdr hdr = {
 		.minorversion = nfs4_xdr_minorversion(&args->seq_args),
 	};
@@ -2490,8 +2553,9 @@ static void nfs4_xdr_enc_setattr(struct rpc_rqst *req, struct xdr_stream *xdr,
  * Encode a GETACL request
  */
 static void nfs4_xdr_enc_getacl(struct rpc_rqst *req, struct xdr_stream *xdr,
-				struct nfs_getaclargs *args)
+				const void *data)
 {
+	const struct nfs_getaclargs *args = data;
 	struct compound_hdr hdr = {
 		.minorversion = nfs4_xdr_minorversion(&args->seq_args),
 	};
@@ -2513,8 +2577,9 @@ static void nfs4_xdr_enc_getacl(struct rpc_rqst *req, struct xdr_stream *xdr,
  * Encode a WRITE request
  */
 static void nfs4_xdr_enc_write(struct rpc_rqst *req, struct xdr_stream *xdr,
-			       struct nfs_pgio_args *args)
+			       const void *data)
 {
+	const struct nfs_pgio_args *args = data;
 	struct compound_hdr hdr = {
 		.minorversion = nfs4_xdr_minorversion(&args->seq_args),
 	};
@@ -2533,8 +2598,9 @@ static void nfs4_xdr_enc_write(struct rpc_rqst *req, struct xdr_stream *xdr,
  *  a COMMIT request
  */
 static void nfs4_xdr_enc_commit(struct rpc_rqst *req, struct xdr_stream *xdr,
-				struct nfs_commitargs *args)
+				const void *data)
 {
+	const struct nfs_commitargs *args = data;
 	struct compound_hdr hdr = {
 		.minorversion = nfs4_xdr_minorversion(&args->seq_args),
 	};
@@ -2550,8 +2616,9 @@ static void nfs4_xdr_enc_commit(struct rpc_rqst *req, struct xdr_stream *xdr,
  * FSINFO request
  */
 static void nfs4_xdr_enc_fsinfo(struct rpc_rqst *req, struct xdr_stream *xdr,
-				struct nfs4_fsinfo_arg *args)
+				const void *data)
 {
+	const struct nfs4_fsinfo_arg *args = data;
 	struct compound_hdr hdr = {
 		.minorversion = nfs4_xdr_minorversion(&args->seq_args),
 	};
@@ -2567,8 +2634,9 @@ static void nfs4_xdr_enc_fsinfo(struct rpc_rqst *req, struct xdr_stream *xdr,
  * a PATHCONF request
  */
 static void nfs4_xdr_enc_pathconf(struct rpc_rqst *req, struct xdr_stream *xdr,
-				  const struct nfs4_pathconf_arg *args)
+				  const void *data)
 {
+	const struct nfs4_pathconf_arg *args = data;
 	struct compound_hdr hdr = {
 		.minorversion = nfs4_xdr_minorversion(&args->seq_args),
 	};
@@ -2585,8 +2653,9 @@ static void nfs4_xdr_enc_pathconf(struct rpc_rqst *req, struct xdr_stream *xdr,
  * a STATFS request
  */
 static void nfs4_xdr_enc_statfs(struct rpc_rqst *req, struct xdr_stream *xdr,
-				const struct nfs4_statfs_arg *args)
+				const void *data)
 {
+	const struct nfs4_statfs_arg *args = data;
 	struct compound_hdr hdr = {
 		.minorversion = nfs4_xdr_minorversion(&args->seq_args),
 	};
@@ -2604,8 +2673,9 @@ static void nfs4_xdr_enc_statfs(struct rpc_rqst *req, struct xdr_stream *xdr,
  */
 static void nfs4_xdr_enc_server_caps(struct rpc_rqst *req,
 				     struct xdr_stream *xdr,
-				     struct nfs4_server_caps_arg *args)
+				     const void *data)
 {
+	const struct nfs4_server_caps_arg *args = data;
 	const u32 *bitmask = args->bitmask;
 	struct compound_hdr hdr = {
 		.minorversion = nfs4_xdr_minorversion(&args->seq_args),
@@ -2622,8 +2692,10 @@ static void nfs4_xdr_enc_server_caps(struct rpc_rqst *req,
  * a RENEW request
  */
 static void nfs4_xdr_enc_renew(struct rpc_rqst *req, struct xdr_stream *xdr,
-			       struct nfs_client *clp)
+			       const void *data)
+
 {
+	const struct nfs_client *clp = data;
 	struct compound_hdr hdr = {
 		.nops	= 0,
 	};
@@ -2638,8 +2710,9 @@ static void nfs4_xdr_enc_renew(struct rpc_rqst *req, struct xdr_stream *xdr,
  */
 static void nfs4_xdr_enc_setclientid(struct rpc_rqst *req,
 				     struct xdr_stream *xdr,
-				     struct nfs4_setclientid *sc)
+				     const void *data)
 {
+	const struct nfs4_setclientid *sc = data;
 	struct compound_hdr hdr = {
 		.nops	= 0,
 	};
@@ -2654,8 +2727,9 @@ static void nfs4_xdr_enc_setclientid(struct rpc_rqst *req,
  */
 static void nfs4_xdr_enc_setclientid_confirm(struct rpc_rqst *req,
 					     struct xdr_stream *xdr,
-					     struct nfs4_setclientid_res *arg)
+					     const void *data)
 {
+	const struct nfs4_setclientid_res *arg = data;
 	struct compound_hdr hdr = {
 		.nops	= 0,
 	};
@@ -2670,8 +2744,9 @@ static void nfs4_xdr_enc_setclientid_confirm(struct rpc_rqst *req,
  */
 static void nfs4_xdr_enc_delegreturn(struct rpc_rqst *req,
 				     struct xdr_stream *xdr,
-				     const struct nfs4_delegreturnargs *args)
+				     const void *data)
 {
+	const struct nfs4_delegreturnargs *args = data;
 	struct compound_hdr hdr = {
 		.minorversion = nfs4_xdr_minorversion(&args->seq_args),
 	};
@@ -2692,8 +2767,9 @@ static void nfs4_xdr_enc_delegreturn(struct rpc_rqst *req,
  */
 static void nfs4_xdr_enc_fs_locations(struct rpc_rqst *req,
 				      struct xdr_stream *xdr,
-				      struct nfs4_fs_locations_arg *args)
+				      const void *data)
 {
+	const struct nfs4_fs_locations_arg *args = data;
 	struct compound_hdr hdr = {
 		.minorversion = nfs4_xdr_minorversion(&args->seq_args),
 	};
@@ -2715,8 +2791,8 @@ static void nfs4_xdr_enc_fs_locations(struct rpc_rqst *req,
 	}
 
 	/* Set up reply kvec to capture returned fs_locations array. */
-	xdr_inline_pages(&req->rq_rcv_buf, replen << 2, &args->page,
-			0, PAGE_SIZE);
+	xdr_inline_pages(&req->rq_rcv_buf, replen << 2,
+			 (struct page **)&args->page, 0, PAGE_SIZE);
 	encode_nops(&hdr);
 }
 
@@ -2725,8 +2801,9 @@ static void nfs4_xdr_enc_fs_locations(struct rpc_rqst *req,
  */
 static void nfs4_xdr_enc_secinfo(struct rpc_rqst *req,
 				struct xdr_stream *xdr,
-				struct nfs4_secinfo_arg *args)
+				const void *data)
 {
+	const struct nfs4_secinfo_arg *args = data;
 	struct compound_hdr hdr = {
 		.minorversion = nfs4_xdr_minorversion(&args->seq_args),
 	};
@@ -2743,8 +2820,9 @@ static void nfs4_xdr_enc_secinfo(struct rpc_rqst *req,
  */
 static void nfs4_xdr_enc_fsid_present(struct rpc_rqst *req,
 				      struct xdr_stream *xdr,
-				      struct nfs4_fsid_present_arg *args)
+				      const void *data)
 {
+	const struct nfs4_fsid_present_arg *args = data;
 	struct compound_hdr hdr = {
 		.minorversion = nfs4_xdr_minorversion(&args->seq_args),
 	};
@@ -2764,8 +2842,9 @@ static void nfs4_xdr_enc_fsid_present(struct rpc_rqst *req,
  */
 static void nfs4_xdr_enc_bind_conn_to_session(struct rpc_rqst *req,
 				struct xdr_stream *xdr,
-				struct nfs41_bind_conn_to_session_args *args)
+				const void *data)
 {
+	const struct nfs41_bind_conn_to_session_args *args = data;
 	struct compound_hdr hdr = {
 		.minorversion = args->client->cl_mvops->minor_version,
 	};
@@ -2780,8 +2859,9 @@ static void nfs4_xdr_enc_bind_conn_to_session(struct rpc_rqst *req,
  */
 static void nfs4_xdr_enc_exchange_id(struct rpc_rqst *req,
 				     struct xdr_stream *xdr,
-				     struct nfs41_exchange_id_args *args)
+				     const void *data)
 {
+	const struct nfs41_exchange_id_args *args = data;
 	struct compound_hdr hdr = {
 		.minorversion = args->client->cl_mvops->minor_version,
 	};
@@ -2796,8 +2876,9 @@ static void nfs4_xdr_enc_exchange_id(struct rpc_rqst *req,
  */
 static void nfs4_xdr_enc_create_session(struct rpc_rqst *req,
 					struct xdr_stream *xdr,
-					struct nfs41_create_session_args *args)
+					const void *data)
 {
+	const struct nfs41_create_session_args *args = data;
 	struct compound_hdr hdr = {
 		.minorversion = args->client->cl_mvops->minor_version,
 	};
@@ -2812,8 +2893,9 @@ static void nfs4_xdr_enc_create_session(struct rpc_rqst *req,
  */
 static void nfs4_xdr_enc_destroy_session(struct rpc_rqst *req,
 					 struct xdr_stream *xdr,
-					 struct nfs4_session *session)
+					 const void *data)
 {
+	const struct nfs4_session *session = data;
 	struct compound_hdr hdr = {
 		.minorversion = session->clp->cl_mvops->minor_version,
 	};
@@ -2828,8 +2910,9 @@ static void nfs4_xdr_enc_destroy_session(struct rpc_rqst *req,
  */
 static void nfs4_xdr_enc_destroy_clientid(struct rpc_rqst *req,
 					 struct xdr_stream *xdr,
-					 struct nfs_client *clp)
+					 const void *data)
 {
+	const struct nfs_client *clp = data;
 	struct compound_hdr hdr = {
 		.minorversion = clp->cl_mvops->minor_version,
 	};
@@ -2843,8 +2926,9 @@ static void nfs4_xdr_enc_destroy_clientid(struct rpc_rqst *req,
  * a SEQUENCE request
  */
 static void nfs4_xdr_enc_sequence(struct rpc_rqst *req, struct xdr_stream *xdr,
-				  struct nfs4_sequence_args *args)
+				  const void *data)
 {
+	const struct nfs4_sequence_args *args = data;
 	struct compound_hdr hdr = {
 		.minorversion = nfs4_xdr_minorversion(args),
 	};
@@ -2859,8 +2943,9 @@ static void nfs4_xdr_enc_sequence(struct rpc_rqst *req, struct xdr_stream *xdr,
  */
 static void nfs4_xdr_enc_get_lease_time(struct rpc_rqst *req,
 					struct xdr_stream *xdr,
-					struct nfs4_get_lease_time_args *args)
+					const void *data)
 {
+	const struct nfs4_get_lease_time_args *args = data;
 	struct compound_hdr hdr = {
 		.minorversion = nfs4_xdr_minorversion(&args->la_seq_args),
 	};
@@ -2878,8 +2963,9 @@ static void nfs4_xdr_enc_get_lease_time(struct rpc_rqst *req,
  */
 static void nfs4_xdr_enc_reclaim_complete(struct rpc_rqst *req,
 					  struct xdr_stream *xdr,
-				struct nfs41_reclaim_complete_args *args)
+					  const void *data)
 {
+	const struct nfs41_reclaim_complete_args *args = data;
 	struct compound_hdr hdr = {
 		.minorversion = nfs4_xdr_minorversion(&args->seq_args)
 	};
@@ -2895,8 +2981,9 @@ static void nfs4_xdr_enc_reclaim_complete(struct rpc_rqst *req,
  */
 static void nfs4_xdr_enc_getdeviceinfo(struct rpc_rqst *req,
 				       struct xdr_stream *xdr,
-				       struct nfs4_getdeviceinfo_args *args)
+				       const void *data)
 {
+	const struct nfs4_getdeviceinfo_args *args = data;
 	struct compound_hdr hdr = {
 		.minorversion = nfs4_xdr_minorversion(&args->seq_args),
 	};
@@ -2919,8 +3006,9 @@ static void nfs4_xdr_enc_getdeviceinfo(struct rpc_rqst *req,
  */
 static void nfs4_xdr_enc_layoutget(struct rpc_rqst *req,
 				   struct xdr_stream *xdr,
-				   struct nfs4_layoutget_args *args)
+				   const void *data)
 {
+	const struct nfs4_layoutget_args *args = data;
 	struct compound_hdr hdr = {
 		.minorversion = nfs4_xdr_minorversion(&args->seq_args),
 	};
@@ -2941,8 +3029,9 @@ static void nfs4_xdr_enc_layoutget(struct rpc_rqst *req,
  */
 static void nfs4_xdr_enc_layoutcommit(struct rpc_rqst *req,
 				      struct xdr_stream *xdr,
-				      struct nfs4_layoutcommit_args *args)
+				      const void *priv)
 {
+	const struct nfs4_layoutcommit_args *args = priv;
 	struct nfs4_layoutcommit_data *data =
 		container_of(args, struct nfs4_layoutcommit_data, args);
 	struct compound_hdr hdr = {
@@ -2962,8 +3051,9 @@ static void nfs4_xdr_enc_layoutcommit(struct rpc_rqst *req,
  */
 static void nfs4_xdr_enc_layoutreturn(struct rpc_rqst *req,
 				      struct xdr_stream *xdr,
-				      struct nfs4_layoutreturn_args *args)
+				      const void *data)
 {
+	const struct nfs4_layoutreturn_args *args = data;
 	struct compound_hdr hdr = {
 		.minorversion = nfs4_xdr_minorversion(&args->seq_args),
 	};
@@ -2978,10 +3068,11 @@ static void nfs4_xdr_enc_layoutreturn(struct rpc_rqst *req,
 /*
  * Encode SECINFO_NO_NAME request
  */
-static int nfs4_xdr_enc_secinfo_no_name(struct rpc_rqst *req,
+static void nfs4_xdr_enc_secinfo_no_name(struct rpc_rqst *req,
 					struct xdr_stream *xdr,
-					struct nfs41_secinfo_no_name_args *args)
+					const void *data)
 {
+	const struct nfs41_secinfo_no_name_args *args = data;
 	struct compound_hdr hdr = {
 		.minorversion = nfs4_xdr_minorversion(&args->seq_args),
 	};
@@ -2991,7 +3082,6 @@ static int nfs4_xdr_enc_secinfo_no_name(struct rpc_rqst *req,
 	encode_putrootfh(xdr, &hdr);
 	encode_secinfo_no_name(xdr, args, &hdr);
 	encode_nops(&hdr);
-	return 0;
 }
 
 /*
@@ -2999,8 +3089,9 @@ static int nfs4_xdr_enc_secinfo_no_name(struct rpc_rqst *req,
  */
 static void nfs4_xdr_enc_test_stateid(struct rpc_rqst *req,
 				      struct xdr_stream *xdr,
-				      struct nfs41_test_stateid_args *args)
+				      const void *data)
 {
+	const struct nfs41_test_stateid_args *args = data;
 	struct compound_hdr hdr = {
 		.minorversion = nfs4_xdr_minorversion(&args->seq_args),
 	};
@@ -3016,8 +3107,9 @@ static void nfs4_xdr_enc_test_stateid(struct rpc_rqst *req,
  */
 static void nfs4_xdr_enc_free_stateid(struct rpc_rqst *req,
 				     struct xdr_stream *xdr,
-				     struct nfs41_free_stateid_args *args)
+				     const void *data)
 {
+	const struct nfs41_free_stateid_args *args = data;
 	struct compound_hdr hdr = {
 		.minorversion = nfs4_xdr_minorversion(&args->seq_args),
 	};
@@ -5005,6 +5097,11 @@ static int decode_lookup(struct xdr_stream *xdr)
 	return decode_op_hdr(xdr, OP_LOOKUP);
 }
 
+static int decode_lookupp(struct xdr_stream *xdr)
+{
+	return decode_op_hdr(xdr, OP_LOOKUPP);
+}
+
 /* This is too sick! */
 static int decode_space_limit(struct xdr_stream *xdr,
 		unsigned long *pagemod_limit)
@@ -6101,8 +6198,9 @@ int decode_layoutreturn(struct xdr_stream *xdr,
  */
 static int nfs4_xdr_dec_open_downgrade(struct rpc_rqst *rqstp,
 				       struct xdr_stream *xdr,
-				       struct nfs_closeres *res)
+				       void *data)
 {
+	struct nfs_closeres *res = data;
 	struct compound_hdr hdr;
 	int status;
 
@@ -6130,8 +6228,9 @@ out:
  * Decode ACCESS response
  */
 static int nfs4_xdr_dec_access(struct rpc_rqst *rqstp, struct xdr_stream *xdr,
-			       struct nfs4_accessres *res)
+			       void *data)
 {
+	struct nfs4_accessres *res = data;
 	struct compound_hdr hdr;
 	int status;
 
@@ -6156,8 +6255,9 @@ out:
  * Decode LOOKUP response
  */
 static int nfs4_xdr_dec_lookup(struct rpc_rqst *rqstp, struct xdr_stream *xdr,
-			       struct nfs4_lookup_res *res)
+			       void *data)
 {
+	struct nfs4_lookup_res *res = data;
 	struct compound_hdr hdr;
 	int status;
 
@@ -6182,12 +6282,43 @@ out:
 }
 
 /*
+ * Decode LOOKUPP response
+ */
+static int nfs4_xdr_dec_lookupp(struct rpc_rqst *rqstp, struct xdr_stream *xdr,
+		void *data)
+{
+	struct nfs4_lookupp_res *res = data;
+	struct compound_hdr hdr;
+	int status;
+
+	status = decode_compound_hdr(xdr, &hdr);
+	if (status)
+		goto out;
+	status = decode_sequence(xdr, &res->seq_res, rqstp);
+	if (status)
+		goto out;
+	status = decode_putfh(xdr);
+	if (status)
+		goto out;
+	status = decode_lookupp(xdr);
+	if (status)
+		goto out;
+	status = decode_getfh(xdr, res->fh);
+	if (status)
+		goto out;
+	status = decode_getfattr_label(xdr, res->fattr, res->label, res->server);
+out:
+	return status;
+}
+
+/*
  * Decode LOOKUP_ROOT response
  */
 static int nfs4_xdr_dec_lookup_root(struct rpc_rqst *rqstp,
 				    struct xdr_stream *xdr,
-				    struct nfs4_lookup_res *res)
+				    void *data)
 {
+	struct nfs4_lookup_res *res = data;
 	struct compound_hdr hdr;
 	int status;
 
@@ -6212,8 +6343,9 @@ out:
  * Decode REMOVE response
  */
 static int nfs4_xdr_dec_remove(struct rpc_rqst *rqstp, struct xdr_stream *xdr,
-			       struct nfs_removeres *res)
+			       void *data)
 {
+	struct nfs_removeres *res = data;
 	struct compound_hdr hdr;
 	int status;
 
@@ -6235,8 +6367,9 @@ out:
  * Decode RENAME response
  */
 static int nfs4_xdr_dec_rename(struct rpc_rqst *rqstp, struct xdr_stream *xdr,
-			       struct nfs_renameres *res)
+			       void *data)
 {
+	struct nfs_renameres *res = data;
 	struct compound_hdr hdr;
 	int status;
 
@@ -6264,8 +6397,9 @@ out:
  * Decode LINK response
  */
 static int nfs4_xdr_dec_link(struct rpc_rqst *rqstp, struct xdr_stream *xdr,
-			     struct nfs4_link_res *res)
+			     void *data)
 {
+	struct nfs4_link_res *res = data;
 	struct compound_hdr hdr;
 	int status;
 
@@ -6303,8 +6437,9 @@ out:
  * Decode CREATE response
  */
 static int nfs4_xdr_dec_create(struct rpc_rqst *rqstp, struct xdr_stream *xdr,
-			       struct nfs4_create_res *res)
+			       void *data)
 {
+	struct nfs4_create_res *res = data;
 	struct compound_hdr hdr;
 	int status;
 
@@ -6332,7 +6467,7 @@ out:
  * Decode SYMLINK response
  */
 static int nfs4_xdr_dec_symlink(struct rpc_rqst *rqstp, struct xdr_stream *xdr,
-				struct nfs4_create_res *res)
+				void *res)
 {
 	return nfs4_xdr_dec_create(rqstp, xdr, res);
 }
@@ -6341,8 +6476,9 @@ static int nfs4_xdr_dec_symlink(struct rpc_rqst *rqstp, struct xdr_stream *xdr,
  * Decode GETATTR response
  */
 static int nfs4_xdr_dec_getattr(struct rpc_rqst *rqstp, struct xdr_stream *xdr,
-				struct nfs4_getattr_res *res)
+				void *data)
 {
+	struct nfs4_getattr_res *res = data;
 	struct compound_hdr hdr;
 	int status;
 
@@ -6364,8 +6500,9 @@ out:
  * Encode an SETACL request
  */
 static void nfs4_xdr_enc_setacl(struct rpc_rqst *req, struct xdr_stream *xdr,
-				struct nfs_setaclargs *args)
+				const void *data)
 {
+	const struct nfs_setaclargs *args = data;
 	struct compound_hdr hdr = {
 		.minorversion = nfs4_xdr_minorversion(&args->seq_args),
 	};
@@ -6382,8 +6519,9 @@ static void nfs4_xdr_enc_setacl(struct rpc_rqst *req, struct xdr_stream *xdr,
  */
 static int
 nfs4_xdr_dec_setacl(struct rpc_rqst *rqstp, struct xdr_stream *xdr,
-		    struct nfs_setaclres *res)
+		    void *data)
 {
+	struct nfs_setaclres *res = data;
 	struct compound_hdr hdr;
 	int status;
 
@@ -6406,8 +6544,9 @@ out:
  */
 static int
 nfs4_xdr_dec_getacl(struct rpc_rqst *rqstp, struct xdr_stream *xdr,
-		    struct nfs_getaclres *res)
+		    void *data)
 {
+	struct nfs_getaclres *res = data;
 	struct compound_hdr hdr;
 	int status;
 
@@ -6434,8 +6573,9 @@ out:
  * Decode CLOSE response
  */
 static int nfs4_xdr_dec_close(struct rpc_rqst *rqstp, struct xdr_stream *xdr,
-			      struct nfs_closeres *res)
+			      void *data)
 {
+	struct nfs_closeres *res = data;
 	struct compound_hdr hdr;
 	int status;
 
@@ -6468,8 +6608,9 @@ out:
  * Decode OPEN response
  */
 static int nfs4_xdr_dec_open(struct rpc_rqst *rqstp, struct xdr_stream *xdr,
-			     struct nfs_openres *res)
+			     void *data)
 {
+	struct nfs_openres *res = data;
 	struct compound_hdr hdr;
 	int status;
 
@@ -6500,8 +6641,9 @@ out:
  */
 static int nfs4_xdr_dec_open_confirm(struct rpc_rqst *rqstp,
 				     struct xdr_stream *xdr,
-				     struct nfs_open_confirmres *res)
+				     void *data)
 {
+	struct nfs_open_confirmres *res = data;
 	struct compound_hdr hdr;
 	int status;
 
@@ -6521,8 +6663,9 @@ out:
  */
 static int nfs4_xdr_dec_open_noattr(struct rpc_rqst *rqstp,
 				    struct xdr_stream *xdr,
-				    struct nfs_openres *res)
+				    void *data)
 {
+	struct nfs_openres *res = data;
 	struct compound_hdr hdr;
 	int status;
 
@@ -6550,8 +6693,9 @@ out:
  */
 static int nfs4_xdr_dec_setattr(struct rpc_rqst *rqstp,
 				struct xdr_stream *xdr,
-				struct nfs_setattrres *res)
+				void *data)
 {
+	struct nfs_setattrres *res = data;
 	struct compound_hdr hdr;
 	int status;
 
@@ -6576,8 +6720,9 @@ out:
  * Decode LOCK response
  */
 static int nfs4_xdr_dec_lock(struct rpc_rqst *rqstp, struct xdr_stream *xdr,
-			     struct nfs_lock_res *res)
+			     void *data)
 {
+	struct nfs_lock_res *res = data;
 	struct compound_hdr hdr;
 	int status;
 
@@ -6599,8 +6744,9 @@ out:
  * Decode LOCKT response
  */
 static int nfs4_xdr_dec_lockt(struct rpc_rqst *rqstp, struct xdr_stream *xdr,
-			      struct nfs_lockt_res *res)
+			      void *data)
 {
+	struct nfs_lockt_res *res = data;
 	struct compound_hdr hdr;
 	int status;
 
@@ -6622,8 +6768,9 @@ out:
  * Decode LOCKU response
  */
 static int nfs4_xdr_dec_locku(struct rpc_rqst *rqstp, struct xdr_stream *xdr,
-			      struct nfs_locku_res *res)
+			      void *data)
 {
+	struct nfs_locku_res *res = data;
 	struct compound_hdr hdr;
 	int status;
 
@@ -6658,8 +6805,9 @@ static int nfs4_xdr_dec_release_lockowner(struct rpc_rqst *rqstp,
  */
 static int nfs4_xdr_dec_readlink(struct rpc_rqst *rqstp,
 				 struct xdr_stream *xdr,
-				 struct nfs4_readlink_res *res)
+				 void *data)
 {
+	struct nfs4_readlink_res *res = data;
 	struct compound_hdr hdr;
 	int status;
 
@@ -6681,8 +6829,9 @@ out:
  * Decode READDIR response
  */
 static int nfs4_xdr_dec_readdir(struct rpc_rqst *rqstp, struct xdr_stream *xdr,
-				struct nfs4_readdir_res *res)
+				void *data)
 {
+	struct nfs4_readdir_res *res = data;
 	struct compound_hdr hdr;
 	int status;
 
@@ -6704,8 +6853,9 @@ out:
  * Decode Read response
  */
 static int nfs4_xdr_dec_read(struct rpc_rqst *rqstp, struct xdr_stream *xdr,
-			     struct nfs_pgio_res *res)
+			     void *data)
 {
+	struct nfs_pgio_res *res = data;
 	struct compound_hdr hdr;
 	int status;
 
@@ -6730,8 +6880,9 @@ out:
  * Decode WRITE response
  */
 static int nfs4_xdr_dec_write(struct rpc_rqst *rqstp, struct xdr_stream *xdr,
-			      struct nfs_pgio_res *res)
+			      void *data)
 {
+	struct nfs_pgio_res *res = data;
 	struct compound_hdr hdr;
 	int status;
 
@@ -6760,8 +6911,9 @@ out:
  * Decode COMMIT response
  */
 static int nfs4_xdr_dec_commit(struct rpc_rqst *rqstp, struct xdr_stream *xdr,
-			       struct nfs_commitres *res)
+			       void *data)
 {
+	struct nfs_commitres *res = data;
 	struct compound_hdr hdr;
 	int status;
 
@@ -6784,8 +6936,9 @@ out:
  * Decode FSINFO response
  */
 static int nfs4_xdr_dec_fsinfo(struct rpc_rqst *req, struct xdr_stream *xdr,
-			       struct nfs4_fsinfo_res *res)
+			       void *data)
 {
+	struct nfs4_fsinfo_res *res = data;
 	struct compound_hdr hdr;
 	int status;
 
@@ -6803,8 +6956,9 @@ static int nfs4_xdr_dec_fsinfo(struct rpc_rqst *req, struct xdr_stream *xdr,
  * Decode PATHCONF response
  */
 static int nfs4_xdr_dec_pathconf(struct rpc_rqst *req, struct xdr_stream *xdr,
-				 struct nfs4_pathconf_res *res)
+				 void *data)
 {
+	struct nfs4_pathconf_res *res = data;
 	struct compound_hdr hdr;
 	int status;
 
@@ -6822,8 +6976,9 @@ static int nfs4_xdr_dec_pathconf(struct rpc_rqst *req, struct xdr_stream *xdr,
  * Decode STATFS response
  */
 static int nfs4_xdr_dec_statfs(struct rpc_rqst *req, struct xdr_stream *xdr,
-			       struct nfs4_statfs_res *res)
+			       void *data)
 {
+	struct nfs4_statfs_res *res = data;
 	struct compound_hdr hdr;
 	int status;
 
@@ -6842,8 +6997,9 @@ static int nfs4_xdr_dec_statfs(struct rpc_rqst *req, struct xdr_stream *xdr,
  */
 static int nfs4_xdr_dec_server_caps(struct rpc_rqst *req,
 				    struct xdr_stream *xdr,
-				    struct nfs4_server_caps_res *res)
+				    void *data)
 {
+	struct nfs4_server_caps_res *res = data;
 	struct compound_hdr hdr;
 	int status;
 
@@ -6881,8 +7037,9 @@ static int nfs4_xdr_dec_renew(struct rpc_rqst *rqstp, struct xdr_stream *xdr,
  */
 static int nfs4_xdr_dec_setclientid(struct rpc_rqst *req,
 				    struct xdr_stream *xdr,
-				    struct nfs4_setclientid_res *res)
+				    void *data)
 {
+	struct nfs4_setclientid_res *res = data;
 	struct compound_hdr hdr;
 	int status;
 
@@ -6896,7 +7053,8 @@ static int nfs4_xdr_dec_setclientid(struct rpc_rqst *req,
  * Decode SETCLIENTID_CONFIRM response
  */
 static int nfs4_xdr_dec_setclientid_confirm(struct rpc_rqst *req,
-					    struct xdr_stream *xdr)
+					    struct xdr_stream *xdr,
+					    void *data)
 {
 	struct compound_hdr hdr;
 	int status;
@@ -6912,8 +7070,9 @@ static int nfs4_xdr_dec_setclientid_confirm(struct rpc_rqst *req,
  */
 static int nfs4_xdr_dec_delegreturn(struct rpc_rqst *rqstp,
 				    struct xdr_stream *xdr,
-				    struct nfs4_delegreturnres *res)
+				    void *data)
 {
+	struct nfs4_delegreturnres *res = data;
 	struct compound_hdr hdr;
 	int status;
 
@@ -6947,8 +7106,9 @@ out:
  */
 static int nfs4_xdr_dec_fs_locations(struct rpc_rqst *req,
 				     struct xdr_stream *xdr,
-				     struct nfs4_fs_locations_res *res)
+				     void *data)
 {
+	struct nfs4_fs_locations_res *res = data;
 	struct compound_hdr hdr;
 	int status;
 
@@ -6990,8 +7150,9 @@ out:
  */
 static int nfs4_xdr_dec_secinfo(struct rpc_rqst *rqstp,
 				struct xdr_stream *xdr,
-				struct nfs4_secinfo_res *res)
+				void *data)
 {
+	struct nfs4_secinfo_res *res = data;
 	struct compound_hdr hdr;
 	int status;
 
@@ -7014,8 +7175,9 @@ out:
  */
 static int nfs4_xdr_dec_fsid_present(struct rpc_rqst *rqstp,
 				     struct xdr_stream *xdr,
-				     struct nfs4_fsid_present_res *res)
+				     void *data)
 {
+	struct nfs4_fsid_present_res *res = data;
 	struct compound_hdr hdr;
 	int status;
 
@@ -7075,7 +7237,7 @@ static int nfs4_xdr_dec_exchange_id(struct rpc_rqst *rqstp,
  */
 static int nfs4_xdr_dec_create_session(struct rpc_rqst *rqstp,
 				       struct xdr_stream *xdr,
-				       struct nfs41_create_session_res *res)
+				       void *res)
 {
 	struct compound_hdr hdr;
 	int status;
@@ -7123,7 +7285,7 @@ static int nfs4_xdr_dec_destroy_clientid(struct rpc_rqst *rqstp,
  */
 static int nfs4_xdr_dec_sequence(struct rpc_rqst *rqstp,
 				 struct xdr_stream *xdr,
-				 struct nfs4_sequence_res *res)
+				 void *res)
 {
 	struct compound_hdr hdr;
 	int status;
@@ -7139,8 +7301,9 @@ static int nfs4_xdr_dec_sequence(struct rpc_rqst *rqstp,
  */
 static int nfs4_xdr_dec_get_lease_time(struct rpc_rqst *rqstp,
 				       struct xdr_stream *xdr,
-				       struct nfs4_get_lease_time_res *res)
+				       void *data)
 {
+	struct nfs4_get_lease_time_res *res = data;
 	struct compound_hdr hdr;
 	int status;
 
@@ -7159,8 +7322,9 @@ static int nfs4_xdr_dec_get_lease_time(struct rpc_rqst *rqstp,
  */
 static int nfs4_xdr_dec_reclaim_complete(struct rpc_rqst *rqstp,
 					 struct xdr_stream *xdr,
-					 struct nfs41_reclaim_complete_res *res)
+					 void *data)
 {
+	struct nfs41_reclaim_complete_res *res = data;
 	struct compound_hdr hdr;
 	int status;
 
@@ -7177,8 +7341,9 @@ static int nfs4_xdr_dec_reclaim_complete(struct rpc_rqst *rqstp,
  */
 static int nfs4_xdr_dec_getdeviceinfo(struct rpc_rqst *rqstp,
 				      struct xdr_stream *xdr,
-				      struct nfs4_getdeviceinfo_res *res)
+				      void *data)
 {
+	struct nfs4_getdeviceinfo_res *res = data;
 	struct compound_hdr hdr;
 	int status;
 
@@ -7198,8 +7363,9 @@ out:
  */
 static int nfs4_xdr_dec_layoutget(struct rpc_rqst *rqstp,
 				  struct xdr_stream *xdr,
-				  struct nfs4_layoutget_res *res)
+				  void *data)
 {
+	struct nfs4_layoutget_res *res = data;
 	struct compound_hdr hdr;
 	int status;
 
@@ -7222,8 +7388,9 @@ out:
  */
 static int nfs4_xdr_dec_layoutreturn(struct rpc_rqst *rqstp,
 				     struct xdr_stream *xdr,
-				     struct nfs4_layoutreturn_res *res)
+				     void *data)
 {
+	struct nfs4_layoutreturn_res *res = data;
 	struct compound_hdr hdr;
 	int status;
 
@@ -7246,8 +7413,9 @@ out:
  */
 static int nfs4_xdr_dec_layoutcommit(struct rpc_rqst *rqstp,
 				     struct xdr_stream *xdr,
-				     struct nfs4_layoutcommit_res *res)
+				     void *data)
 {
+	struct nfs4_layoutcommit_res *res = data;
 	struct compound_hdr hdr;
 	int status;
 
@@ -7273,8 +7441,9 @@ out:
  */
 static int nfs4_xdr_dec_secinfo_no_name(struct rpc_rqst *rqstp,
 					struct xdr_stream *xdr,
-					struct nfs4_secinfo_res *res)
+					void *data)
 {
+	struct nfs4_secinfo_res *res = data;
 	struct compound_hdr hdr;
 	int status;
 
@@ -7297,8 +7466,9 @@ out:
  */
 static int nfs4_xdr_dec_test_stateid(struct rpc_rqst *rqstp,
 				     struct xdr_stream *xdr,
-				     struct nfs41_test_stateid_res *res)
+				     void *data)
 {
+	struct nfs41_test_stateid_res *res = data;
 	struct compound_hdr hdr;
 	int status;
 
@@ -7318,8 +7488,9 @@ out:
  */
 static int nfs4_xdr_dec_free_stateid(struct rpc_rqst *rqstp,
 				     struct xdr_stream *xdr,
-				     struct nfs41_free_stateid_res *res)
+				     void *data)
 {
+	struct nfs41_free_stateid_res *res = data;
 	struct compound_hdr hdr;
 	int status;
 
@@ -7350,7 +7521,7 @@ out:
  * on a directory already in our cache.
  */
 int nfs4_decode_dirent(struct xdr_stream *xdr, struct nfs_entry *entry,
-		       int plus)
+		       bool plus)
 {
 	unsigned int savep;
 	uint32_t bitmap[3] = {0};
@@ -7484,8 +7655,8 @@ nfs4_stat_to_errno(int stat)
 #define PROC(proc, argtype, restype)				\
 [NFSPROC4_CLNT_##proc] = {					\
 	.p_proc   = NFSPROC4_COMPOUND,				\
-	.p_encode = (kxdreproc_t)nfs4_xdr_##argtype,		\
-	.p_decode = (kxdrdproc_t)nfs4_xdr_##restype,		\
+	.p_encode = nfs4_xdr_##argtype,				\
+	.p_decode = nfs4_xdr_##restype,				\
 	.p_arglen = NFS4_##argtype##_sz,			\
 	.p_replen = NFS4_##restype##_sz,			\
 	.p_statidx = NFSPROC4_CLNT_##proc,			\
@@ -7497,7 +7668,7 @@ nfs4_stat_to_errno(int stat)
 	.p_name = #proc,	\
 }
 
-struct rpc_procinfo	nfs4_procedures[] = {
+const struct rpc_procinfo nfs4_procedures[] = {
 	PROC(READ,		enc_read,		dec_read),
 	PROC(WRITE,		enc_write,		dec_write),
 	PROC(COMMIT,		enc_commit,		dec_commit),
@@ -7517,6 +7688,7 @@ struct rpc_procinfo	nfs4_procedures[] = {
 	PROC(ACCESS,		enc_access,		dec_access),
 	PROC(GETATTR,		enc_getattr,		dec_getattr),
 	PROC(LOOKUP,		enc_lookup,		dec_lookup),
+	PROC(LOOKUPP,		enc_lookupp,		dec_lookupp),
 	PROC(LOOKUP_ROOT,	enc_lookup_root,	dec_lookup_root),
 	PROC(REMOVE,		enc_remove,		dec_remove),
 	PROC(RENAME,		enc_rename,		dec_rename),
@@ -7564,10 +7736,12 @@ struct rpc_procinfo	nfs4_procedures[] = {
 #endif /* CONFIG_NFS_V4_2 */
 };
 
+static unsigned int nfs_version4_counts[ARRAY_SIZE(nfs4_procedures)];
 const struct rpc_version nfs_version4 = {
 	.number			= 4,
 	.nrprocs		= ARRAY_SIZE(nfs4_procedures),
-	.procs			= nfs4_procedures
+	.procs			= nfs4_procedures,
+	.counts			= nfs_version4_counts,
 };
 
 /*
diff --git a/fs/nfs/pagelist.c b/fs/nfs/pagelist.c
index ad92b401326c..de9066a92c0d 100644
--- a/fs/nfs/pagelist.c
+++ b/fs/nfs/pagelist.c
@@ -50,8 +50,8 @@ void nfs_pgheader_init(struct nfs_pageio_descriptor *desc,
 	hdr->cred = hdr->req->wb_context->cred;
 	hdr->io_start = req_offset(hdr->req);
 	hdr->good_bytes = mirror->pg_count;
+	hdr->io_completion = desc->pg_io_completion;
 	hdr->dreq = desc->pg_dreq;
-	hdr->layout_private = desc->pg_layout_private;
 	hdr->release = release;
 	hdr->completion_ops = desc->pg_completion_ops;
 	if (hdr->completion_ops->init_hdr)
@@ -155,9 +155,12 @@ nfs_page_group_lock(struct nfs_page *req, bool nonblock)
 	if (!test_and_set_bit(PG_HEADLOCK, &head->wb_flags))
 		return 0;
 
-	if (!nonblock)
+	if (!nonblock) {
+		set_bit(PG_CONTENDED1, &head->wb_flags);
+		smp_mb__after_atomic();
 		return wait_on_bit_lock(&head->wb_flags, PG_HEADLOCK,
 				TASK_UNINTERRUPTIBLE);
+	}
 
 	return -EAGAIN;
 }
@@ -175,6 +178,10 @@ nfs_page_group_lock_wait(struct nfs_page *req)
 
 	WARN_ON_ONCE(head != head->wb_head);
 
+	if (!test_bit(PG_HEADLOCK, &head->wb_flags))
+		return;
+	set_bit(PG_CONTENDED1, &head->wb_flags);
+	smp_mb__after_atomic();
 	wait_on_bit(&head->wb_flags, PG_HEADLOCK,
 		TASK_UNINTERRUPTIBLE);
 }
@@ -193,6 +200,8 @@ nfs_page_group_unlock(struct nfs_page *req)
 	smp_mb__before_atomic();
 	clear_bit(PG_HEADLOCK, &head->wb_flags);
 	smp_mb__after_atomic();
+	if (!test_bit(PG_CONTENDED1, &head->wb_flags))
+		return;
 	wake_up_bit(&head->wb_flags, PG_HEADLOCK);
 }
 
@@ -383,6 +392,8 @@ void nfs_unlock_request(struct nfs_page *req)
 	smp_mb__before_atomic();
 	clear_bit(PG_BUSY, &req->wb_flags);
 	smp_mb__after_atomic();
+	if (!test_bit(PG_CONTENDED2, &req->wb_flags))
+		return;
 	wake_up_bit(&req->wb_flags, PG_BUSY);
 }
 
@@ -465,6 +476,10 @@ void nfs_release_request(struct nfs_page *req)
 int
 nfs_wait_on_request(struct nfs_page *req)
 {
+	if (!test_bit(PG_BUSY, &req->wb_flags))
+		return 0;
+	set_bit(PG_CONTENDED2, &req->wb_flags);
+	smp_mb__after_atomic();
 	return wait_on_bit_io(&req->wb_flags, PG_BUSY,
 			      TASK_UNINTERRUPTIBLE);
 }
@@ -710,8 +725,8 @@ void nfs_pageio_init(struct nfs_pageio_descriptor *desc,
 	desc->pg_ioflags = io_flags;
 	desc->pg_error = 0;
 	desc->pg_lseg = NULL;
+	desc->pg_io_completion = NULL;
 	desc->pg_dreq = NULL;
-	desc->pg_layout_private = NULL;
 	desc->pg_bsize = bsize;
 
 	desc->pg_mirror_count = 1;
@@ -779,6 +794,7 @@ int nfs_generic_pgio(struct nfs_pageio_descriptor *desc,
 	gfp_t gfp_flags = GFP_KERNEL;
 
 	pagecount = nfs_page_array_len(mirror->pg_base, mirror->pg_count);
+	pg_array->npages = pagecount;
 
 	if (pagecount <= ARRAY_SIZE(pg_array->page_array))
 		pg_array->pagevec = pg_array->page_array;
@@ -1233,6 +1249,7 @@ int nfs_pageio_resend(struct nfs_pageio_descriptor *desc,
 {
 	LIST_HEAD(failed);
 
+	desc->pg_io_completion = hdr->io_completion;
 	desc->pg_dreq = hdr->dreq;
 	while (!list_empty(&hdr->pages)) {
 		struct nfs_page *req = nfs_list_entry(hdr->pages.next);
diff --git a/fs/nfs/pnfs_nfs.c b/fs/nfs/pnfs_nfs.c
index d40755a0984b..25f28fa64c57 100644
--- a/fs/nfs/pnfs_nfs.c
+++ b/fs/nfs/pnfs_nfs.c
@@ -159,13 +159,18 @@ void pnfs_generic_recover_commit_reqs(struct list_head *dst,
 {
 	struct pnfs_commit_bucket *b;
 	struct pnfs_layout_segment *freeme;
+	int nwritten;
 	int i;
 
 	lockdep_assert_held(&cinfo->inode->i_lock);
 restart:
 	for (i = 0, b = cinfo->ds->buckets; i < cinfo->ds->nbuckets; i++, b++) {
-		if (pnfs_generic_transfer_commit_list(&b->written, dst,
-						      cinfo, 0)) {
+		nwritten = pnfs_generic_transfer_commit_list(&b->written,
+				dst, cinfo, 0);
+		if (!nwritten)
+			continue;
+		cinfo->ds->nwritten -= nwritten;
+		if (list_empty(&b->written)) {
 			freeme = b->wlseg;
 			b->wlseg = NULL;
 			spin_unlock(&cinfo->inode->i_lock);
@@ -174,7 +179,6 @@ restart:
 			goto restart;
 		}
 	}
-	cinfo->ds->nwritten = 0;
 }
 EXPORT_SYMBOL_GPL(pnfs_generic_recover_commit_reqs);
 
@@ -183,6 +187,7 @@ static void pnfs_generic_retry_commit(struct nfs_commit_info *cinfo, int idx)
 	struct pnfs_ds_commit_info *fl_cinfo = cinfo->ds;
 	struct pnfs_commit_bucket *bucket;
 	struct pnfs_layout_segment *freeme;
+	struct list_head *pos;
 	LIST_HEAD(pages);
 	int i;
 
@@ -193,6 +198,8 @@ static void pnfs_generic_retry_commit(struct nfs_commit_info *cinfo, int idx)
 			continue;
 		freeme = bucket->clseg;
 		bucket->clseg = NULL;
+		list_for_each(pos, &bucket->committing)
+			cinfo->ds->ncommitting--;
 		list_splice_init(&bucket->committing, &pages);
 		spin_unlock(&cinfo->inode->i_lock);
 		nfs_retry_commit(&pages, freeme, cinfo, i);
@@ -217,13 +224,6 @@ pnfs_generic_alloc_ds_commits(struct nfs_commit_info *cinfo,
 	for (i = 0; i < fl_cinfo->nbuckets; i++, bucket++) {
 		if (list_empty(&bucket->committing))
 			continue;
-		/*
-		 * If the layout segment is invalid, then let
-		 * pnfs_generic_retry_commit() clean up the bucket.
-		 */
-		if (bucket->clseg && !pnfs_is_valid_lseg(bucket->clseg) &&
-		    !test_bit(NFS_LSEG_LAYOUTRETURN, &bucket->clseg->pls_flags))
-			break;
 		data = nfs_commitdata_alloc(false);
 		if (!data)
 			break;
@@ -243,9 +243,12 @@ void pnfs_fetch_commit_bucket_list(struct list_head *pages,
 		struct nfs_commit_info *cinfo)
 {
 	struct pnfs_commit_bucket *bucket;
+	struct list_head *pos;
 
 	bucket = &cinfo->ds->buckets[data->ds_commit_index];
 	spin_lock(&cinfo->inode->i_lock);
+	list_for_each(pos, &bucket->committing)
+		cinfo->ds->ncommitting--;
 	list_splice_init(&bucket->committing, pages);
 	data->lseg = bucket->clseg;
 	bucket->clseg = NULL;
@@ -330,7 +333,6 @@ pnfs_generic_commit_pagelist(struct inode *inode, struct list_head *mds_pages,
 		}
 	}
 out:
-	cinfo->ds->ncommitting = 0;
 	return PNFS_ATTEMPTED;
 }
 EXPORT_SYMBOL_GPL(pnfs_generic_commit_pagelist);
diff --git a/fs/nfs/proc.c b/fs/nfs/proc.c
index 9872cf676a50..7962e49097c3 100644
--- a/fs/nfs/proc.c
+++ b/fs/nfs/proc.c
@@ -485,7 +485,7 @@ nfs_proc_rmdir(struct inode *dir, const struct qstr *name)
  */
 static int
 nfs_proc_readdir(struct dentry *dentry, struct rpc_cred *cred,
-		 u64 cookie, struct page **pages, unsigned int count, int plus)
+		 u64 cookie, struct page **pages, unsigned int count, bool plus)
 {
 	struct inode		*dir = d_inode(dentry);
 	struct nfs_readdirargs	arg = {
diff --git a/fs/nfs/super.c b/fs/nfs/super.c
index c5334c0e23a1..d828ef88e7db 100644
--- a/fs/nfs/super.c
+++ b/fs/nfs/super.c
@@ -879,7 +879,7 @@ int nfs_show_stats(struct seq_file *m, struct dentry *root)
 	if (nfss->options & NFS_OPTION_FSCACHE) {
 		seq_printf(m, "\n\tfsc:\t");
 		for (i = 0; i < __NFSIOS_FSCACHEMAX; i++)
-			seq_printf(m, "%Lu ", totals.bytes[i]);
+			seq_printf(m, "%Lu ", totals.fscache[i]);
 	}
 #endif
 	seq_printf(m, "\n");
@@ -2339,6 +2339,7 @@ void nfs_fill_super(struct super_block *sb, struct nfs_mount_info *mount_info)
 		 */
 		sb->s_flags |= MS_POSIXACL;
 		sb->s_time_gran = 1;
+		sb->s_export_op = &nfs_export_ops;
 	}
 
  	nfs_initialise_sb(sb);
@@ -2360,6 +2361,7 @@ static void nfs_clone_super(struct super_block *sb,
 	sb->s_xattr = old_sb->s_xattr;
 	sb->s_op = old_sb->s_op;
 	sb->s_time_gran = 1;
+	sb->s_export_op = old_sb->s_export_op;
 
 	if (server->nfs_client->rpc_ops->version != 2) {
 		/* The VFS shouldn't apply the umask to mode bits. We will do
diff --git a/fs/nfs/unlink.c b/fs/nfs/unlink.c
index 191aa577dd1f..e3949d93085c 100644
--- a/fs/nfs/unlink.c
+++ b/fs/nfs/unlink.c
@@ -288,6 +288,19 @@ static void nfs_async_rename_release(void *calldata)
 	if (d_really_is_positive(data->old_dentry))
 		nfs_mark_for_revalidate(d_inode(data->old_dentry));
 
+	/* The result of the rename is unknown. Play it safe by
+	 * forcing a new lookup */
+	if (data->cancelled) {
+		spin_lock(&data->old_dir->i_lock);
+		nfs_force_lookup_revalidate(data->old_dir);
+		spin_unlock(&data->old_dir->i_lock);
+		if (data->new_dir != data->old_dir) {
+			spin_lock(&data->new_dir->i_lock);
+			nfs_force_lookup_revalidate(data->new_dir);
+			spin_unlock(&data->new_dir->i_lock);
+		}
+	}
+
 	dput(data->old_dentry);
 	dput(data->new_dentry);
 	iput(data->old_dir);
diff --git a/fs/nfs/write.c b/fs/nfs/write.c
index db7ba542559e..b1af5dee5e0a 100644
--- a/fs/nfs/write.c
+++ b/fs/nfs/write.c
@@ -40,6 +40,12 @@
 #define MIN_POOL_WRITE		(32)
 #define MIN_POOL_COMMIT		(4)
 
+struct nfs_io_completion {
+	void (*complete)(void *data);
+	void *data;
+	struct kref refcount;
+};
+
 /*
  * Local function declarations
  */
@@ -108,6 +114,39 @@ static void nfs_writehdr_free(struct nfs_pgio_header *hdr)
 	mempool_free(hdr, nfs_wdata_mempool);
 }
 
+static struct nfs_io_completion *nfs_io_completion_alloc(gfp_t gfp_flags)
+{
+	return kmalloc(sizeof(struct nfs_io_completion), gfp_flags);
+}
+
+static void nfs_io_completion_init(struct nfs_io_completion *ioc,
+		void (*complete)(void *), void *data)
+{
+	ioc->complete = complete;
+	ioc->data = data;
+	kref_init(&ioc->refcount);
+}
+
+static void nfs_io_completion_release(struct kref *kref)
+{
+	struct nfs_io_completion *ioc = container_of(kref,
+			struct nfs_io_completion, refcount);
+	ioc->complete(ioc->data);
+	kfree(ioc);
+}
+
+static void nfs_io_completion_get(struct nfs_io_completion *ioc)
+{
+	if (ioc != NULL)
+		kref_get(&ioc->refcount);
+}
+
+static void nfs_io_completion_put(struct nfs_io_completion *ioc)
+{
+	if (ioc != NULL)
+		kref_put(&ioc->refcount, nfs_io_completion_release);
+}
+
 static void nfs_context_set_write_error(struct nfs_open_context *ctx, int error)
 {
 	ctx->error = error;
@@ -681,18 +720,29 @@ static int nfs_writepages_callback(struct page *page, struct writeback_control *
 	return ret;
 }
 
+static void nfs_io_completion_commit(void *inode)
+{
+	nfs_commit_inode(inode, 0);
+}
+
 int nfs_writepages(struct address_space *mapping, struct writeback_control *wbc)
 {
 	struct inode *inode = mapping->host;
 	struct nfs_pageio_descriptor pgio;
+	struct nfs_io_completion *ioc = nfs_io_completion_alloc(GFP_NOFS);
 	int err;
 
 	nfs_inc_stats(inode, NFSIOS_VFSWRITEPAGES);
 
+	if (ioc)
+		nfs_io_completion_init(ioc, nfs_io_completion_commit, inode);
+
 	nfs_pageio_init_write(&pgio, inode, wb_priority(wbc), false,
 				&nfs_async_write_completion_ops);
+	pgio.pg_io_completion = ioc;
 	err = write_cache_pages(mapping, wbc, nfs_writepages_callback, &pgio);
 	nfs_pageio_complete(&pgio);
+	nfs_io_completion_put(ioc);
 
 	if (err < 0)
 		goto out_err;
@@ -940,6 +990,11 @@ int nfs_write_need_commit(struct nfs_pgio_header *hdr)
 	return hdr->verf.committed != NFS_FILE_SYNC;
 }
 
+static void nfs_async_write_init(struct nfs_pgio_header *hdr)
+{
+	nfs_io_completion_get(hdr->io_completion);
+}
+
 static void nfs_write_completion(struct nfs_pgio_header *hdr)
 {
 	struct nfs_commit_info cinfo;
@@ -973,6 +1028,7 @@ next:
 		nfs_release_request(req);
 	}
 out:
+	nfs_io_completion_put(hdr->io_completion);
 	hdr->release(hdr);
 }
 
@@ -1378,6 +1434,7 @@ static void nfs_async_write_reschedule_io(struct nfs_pgio_header *hdr)
 }
 
 static const struct nfs_pgio_completion_ops nfs_async_write_completion_ops = {
+	.init_hdr = nfs_async_write_init,
 	.error_cleanup = nfs_async_write_error,
 	.completion = nfs_write_completion,
 	.reschedule_io = nfs_async_write_reschedule_io,
@@ -1884,7 +1941,7 @@ int nfs_write_inode(struct inode *inode, struct writeback_control *wbc)
 		/* Don't commit yet if this is a non-blocking flush and there
 		 * are a lot of outstanding writes for this mapping.
 		 */
-		if (nfsi->commit_info.ncommit <= (nfsi->nrequests >> 1))
+		if (mapping_tagged(inode->i_mapping, PAGECACHE_TAG_WRITEBACK))
 			goto out_mark_dirty;
 
 		/* don't wait for the COMMIT response */
diff --git a/fs/nfsd/current_stateid.h b/fs/nfsd/current_stateid.h
index 4123551208d8..34075cee573a 100644
--- a/fs/nfsd/current_stateid.h
+++ b/fs/nfsd/current_stateid.h
@@ -8,21 +8,33 @@ extern void clear_current_stateid(struct nfsd4_compound_state *cstate);
 /*
  * functions to set current state id
  */
-extern void nfsd4_set_opendowngradestateid(struct nfsd4_compound_state *cstate, struct nfsd4_open_downgrade *);
-extern void nfsd4_set_openstateid(struct nfsd4_compound_state *, struct nfsd4_open *);
-extern void nfsd4_set_lockstateid(struct nfsd4_compound_state *, struct nfsd4_lock *);
-extern void nfsd4_set_closestateid(struct nfsd4_compound_state *, struct nfsd4_close *);
+extern void nfsd4_set_opendowngradestateid(struct nfsd4_compound_state *,
+		union nfsd4_op_u *);
+extern void nfsd4_set_openstateid(struct nfsd4_compound_state *,
+		union nfsd4_op_u *);
+extern void nfsd4_set_lockstateid(struct nfsd4_compound_state *,
+		union nfsd4_op_u *);
+extern void nfsd4_set_closestateid(struct nfsd4_compound_state *,
+		union nfsd4_op_u *);
 
 /*
  * functions to consume current state id
  */
-extern void nfsd4_get_opendowngradestateid(struct nfsd4_compound_state *cstate, struct nfsd4_open_downgrade *);
-extern void nfsd4_get_delegreturnstateid(struct nfsd4_compound_state *, struct nfsd4_delegreturn *);
-extern void nfsd4_get_freestateid(struct nfsd4_compound_state *, struct nfsd4_free_stateid *);
-extern void nfsd4_get_setattrstateid(struct nfsd4_compound_state *, struct nfsd4_setattr *);
-extern void nfsd4_get_closestateid(struct nfsd4_compound_state *, struct nfsd4_close *);
-extern void nfsd4_get_lockustateid(struct nfsd4_compound_state *, struct nfsd4_locku *);
-extern void nfsd4_get_readstateid(struct nfsd4_compound_state *, struct nfsd4_read *);
-extern void nfsd4_get_writestateid(struct nfsd4_compound_state *, struct nfsd4_write *);
+extern void nfsd4_get_opendowngradestateid(struct nfsd4_compound_state *,
+		union nfsd4_op_u *);
+extern void nfsd4_get_delegreturnstateid(struct nfsd4_compound_state *,
+		union nfsd4_op_u *);
+extern void nfsd4_get_freestateid(struct nfsd4_compound_state *,
+		union nfsd4_op_u *);
+extern void nfsd4_get_setattrstateid(struct nfsd4_compound_state *,
+		union nfsd4_op_u *);
+extern void nfsd4_get_closestateid(struct nfsd4_compound_state *,
+		union nfsd4_op_u *);
+extern void nfsd4_get_lockustateid(struct nfsd4_compound_state *,
+		union nfsd4_op_u *);
+extern void nfsd4_get_readstateid(struct nfsd4_compound_state *,
+		union nfsd4_op_u *);
+extern void nfsd4_get_writestateid(struct nfsd4_compound_state *,
+		union nfsd4_op_u *);
 
 #endif   /* _NFSD4_CURRENT_STATE_H */
diff --git a/fs/nfsd/nfs2acl.c b/fs/nfsd/nfs2acl.c
index 838f90f3f890..6276ec8608b0 100644
--- a/fs/nfsd/nfs2acl.c
+++ b/fs/nfsd/nfs2acl.c
@@ -19,7 +19,7 @@
  * NULL call.
  */
 static __be32
-nfsacld_proc_null(struct svc_rqst *rqstp, void *argp, void *resp)
+nfsacld_proc_null(struct svc_rqst *rqstp)
 {
 	return nfs_ok;
 }
@@ -27,9 +27,10 @@ nfsacld_proc_null(struct svc_rqst *rqstp, void *argp, void *resp)
 /*
  * Get the Access and/or Default ACL of a file.
  */
-static __be32 nfsacld_proc_getacl(struct svc_rqst * rqstp,
-		struct nfsd3_getaclargs *argp, struct nfsd3_getaclres *resp)
+static __be32 nfsacld_proc_getacl(struct svc_rqst *rqstp)
 {
+	struct nfsd3_getaclargs *argp = rqstp->rq_argp;
+	struct nfsd3_getaclres *resp = rqstp->rq_resp;
 	struct posix_acl *acl;
 	struct inode *inode;
 	svc_fh *fh;
@@ -87,10 +88,10 @@ fail:
 /*
  * Set the Access and/or Default ACL of a file.
  */
-static __be32 nfsacld_proc_setacl(struct svc_rqst * rqstp,
-		struct nfsd3_setaclargs *argp,
-		struct nfsd_attrstat *resp)
+static __be32 nfsacld_proc_setacl(struct svc_rqst *rqstp)
 {
+	struct nfsd3_setaclargs *argp = rqstp->rq_argp;
+	struct nfsd_attrstat *resp = rqstp->rq_resp;
 	struct inode *inode;
 	svc_fh *fh;
 	__be32 nfserr = 0;
@@ -141,9 +142,10 @@ out_errno:
 /*
  * Check file attributes
  */
-static __be32 nfsacld_proc_getattr(struct svc_rqst * rqstp,
-		struct nfsd_fhandle *argp, struct nfsd_attrstat *resp)
+static __be32 nfsacld_proc_getattr(struct svc_rqst *rqstp)
 {
+	struct nfsd_fhandle *argp = rqstp->rq_argp;
+	struct nfsd_attrstat *resp = rqstp->rq_resp;
 	__be32 nfserr;
 	dprintk("nfsd: GETATTR  %s\n", SVCFH_fmt(&argp->fh));
 
@@ -158,9 +160,10 @@ static __be32 nfsacld_proc_getattr(struct svc_rqst * rqstp,
 /*
  * Check file access
  */
-static __be32 nfsacld_proc_access(struct svc_rqst *rqstp, struct nfsd3_accessargs *argp,
-		struct nfsd3_accessres *resp)
+static __be32 nfsacld_proc_access(struct svc_rqst *rqstp)
 {
+	struct nfsd3_accessargs *argp = rqstp->rq_argp;
+	struct nfsd3_accessres *resp = rqstp->rq_resp;
 	__be32 nfserr;
 
 	dprintk("nfsd: ACCESS(2acl)   %s 0x%x\n",
@@ -179,9 +182,10 @@ static __be32 nfsacld_proc_access(struct svc_rqst *rqstp, struct nfsd3_accessarg
 /*
  * XDR decode functions
  */
-static int nfsaclsvc_decode_getaclargs(struct svc_rqst *rqstp, __be32 *p,
-		struct nfsd3_getaclargs *argp)
+static int nfsaclsvc_decode_getaclargs(struct svc_rqst *rqstp, __be32 *p)
 {
+	struct nfsd3_getaclargs *argp = rqstp->rq_argp;
+
 	p = nfs2svc_decode_fh(p, &argp->fh);
 	if (!p)
 		return 0;
@@ -191,9 +195,9 @@ static int nfsaclsvc_decode_getaclargs(struct svc_rqst *rqstp, __be32 *p,
 }
 
 
-static int nfsaclsvc_decode_setaclargs(struct svc_rqst *rqstp, __be32 *p,
-		struct nfsd3_setaclargs *argp)
+static int nfsaclsvc_decode_setaclargs(struct svc_rqst *rqstp, __be32 *p)
 {
+	struct nfsd3_setaclargs *argp = rqstp->rq_argp;
 	struct kvec *head = rqstp->rq_arg.head;
 	unsigned int base;
 	int n;
@@ -217,18 +221,20 @@ static int nfsaclsvc_decode_setaclargs(struct svc_rqst *rqstp, __be32 *p,
 	return (n > 0);
 }
 
-static int nfsaclsvc_decode_fhandleargs(struct svc_rqst *rqstp, __be32 *p,
-		struct nfsd_fhandle *argp)
+static int nfsaclsvc_decode_fhandleargs(struct svc_rqst *rqstp, __be32 *p)
 {
+	struct nfsd_fhandle *argp = rqstp->rq_argp;
+
 	p = nfs2svc_decode_fh(p, &argp->fh);
 	if (!p)
 		return 0;
 	return xdr_argsize_check(rqstp, p);
 }
 
-static int nfsaclsvc_decode_accessargs(struct svc_rqst *rqstp, __be32 *p,
-		struct nfsd3_accessargs *argp)
+static int nfsaclsvc_decode_accessargs(struct svc_rqst *rqstp, __be32 *p)
 {
+	struct nfsd3_accessargs *argp = rqstp->rq_argp;
+
 	p = nfs2svc_decode_fh(p, &argp->fh);
 	if (!p)
 		return 0;
@@ -245,15 +251,15 @@ static int nfsaclsvc_decode_accessargs(struct svc_rqst *rqstp, __be32 *p,
  * There must be an encoding function for void results so svc_process
  * will work properly.
  */
-static int nfsaclsvc_encode_voidres(struct svc_rqst *rqstp, __be32 *p, void *dummy)
+static int nfsaclsvc_encode_voidres(struct svc_rqst *rqstp, __be32 *p)
 {
 	return xdr_ressize_check(rqstp, p);
 }
 
 /* GETACL */
-static int nfsaclsvc_encode_getaclres(struct svc_rqst *rqstp, __be32 *p,
-		struct nfsd3_getaclres *resp)
+static int nfsaclsvc_encode_getaclres(struct svc_rqst *rqstp, __be32 *p)
 {
+	struct nfsd3_getaclres *resp = rqstp->rq_resp;
 	struct dentry *dentry = resp->fh.fh_dentry;
 	struct inode *inode;
 	struct kvec *head = rqstp->rq_res.head;
@@ -296,17 +302,19 @@ static int nfsaclsvc_encode_getaclres(struct svc_rqst *rqstp, __be32 *p,
 	return (n > 0);
 }
 
-static int nfsaclsvc_encode_attrstatres(struct svc_rqst *rqstp, __be32 *p,
-		struct nfsd_attrstat *resp)
+static int nfsaclsvc_encode_attrstatres(struct svc_rqst *rqstp, __be32 *p)
 {
+	struct nfsd_attrstat *resp = rqstp->rq_resp;
+
 	p = nfs2svc_encode_fattr(rqstp, p, &resp->fh, &resp->stat);
 	return xdr_ressize_check(rqstp, p);
 }
 
 /* ACCESS */
-static int nfsaclsvc_encode_accessres(struct svc_rqst *rqstp, __be32 *p,
-		struct nfsd3_accessres *resp)
+static int nfsaclsvc_encode_accessres(struct svc_rqst *rqstp, __be32 *p)
 {
+	struct nfsd3_accessres *resp = rqstp->rq_resp;
+
 	p = nfs2svc_encode_fattr(rqstp, p, &resp->fh, &resp->stat);
 	*p++ = htonl(resp->access);
 	return xdr_ressize_check(rqstp, p);
@@ -315,27 +323,27 @@ static int nfsaclsvc_encode_accessres(struct svc_rqst *rqstp, __be32 *p,
 /*
  * XDR release functions
  */
-static int nfsaclsvc_release_getacl(struct svc_rqst *rqstp, __be32 *p,
-		struct nfsd3_getaclres *resp)
+static void nfsaclsvc_release_getacl(struct svc_rqst *rqstp)
 {
+	struct nfsd3_getaclres *resp = rqstp->rq_resp;
+
 	fh_put(&resp->fh);
 	posix_acl_release(resp->acl_access);
 	posix_acl_release(resp->acl_default);
-	return 1;
 }
 
-static int nfsaclsvc_release_attrstat(struct svc_rqst *rqstp, __be32 *p,
-		struct nfsd_attrstat *resp)
+static void nfsaclsvc_release_attrstat(struct svc_rqst *rqstp)
 {
+	struct nfsd_attrstat *resp = rqstp->rq_resp;
+
 	fh_put(&resp->fh);
-	return 1;
 }
 
-static int nfsaclsvc_release_access(struct svc_rqst *rqstp, __be32 *p,
-               struct nfsd3_accessres *resp)
+static void nfsaclsvc_release_access(struct svc_rqst *rqstp)
 {
-       fh_put(&resp->fh);
-       return 1;
+	struct nfsd3_accessres *resp = rqstp->rq_resp;
+
+	fh_put(&resp->fh);
 }
 
 #define nfsaclsvc_decode_voidargs	NULL
@@ -345,24 +353,24 @@ static int nfsaclsvc_release_access(struct svc_rqst *rqstp, __be32 *p,
 #define nfsd3_voidres		nfsd3_voidargs
 struct nfsd3_voidargs { int dummy; };
 
-#define PROC(name, argt, rest, relt, cache, respsize)	\
- { (svc_procfunc) nfsacld_proc_##name,		\
-   (kxdrproc_t) nfsaclsvc_decode_##argt##args,	\
-   (kxdrproc_t) nfsaclsvc_encode_##rest##res,	\
-   (kxdrproc_t) nfsaclsvc_release_##relt,		\
-   sizeof(struct nfsd3_##argt##args),		\
-   sizeof(struct nfsd3_##rest##res),		\
-   0,						\
-   cache,					\
-   respsize,					\
- }
+#define PROC(name, argt, rest, relt, cache, respsize)			\
+{									\
+	.pc_func	= nfsacld_proc_##name,				\
+	.pc_decode	= nfsaclsvc_decode_##argt##args,		\
+	.pc_encode	= nfsaclsvc_encode_##rest##res,			\
+	.pc_release	= nfsaclsvc_release_##relt,	\
+	.pc_argsize	= sizeof(struct nfsd3_##argt##args),		\
+	.pc_ressize	= sizeof(struct nfsd3_##rest##res),		\
+	.pc_cachetype	= cache,					\
+	.pc_xdrressize	= respsize,					\
+}
 
 #define ST 1		/* status*/
 #define AT 21		/* attributes */
 #define pAT (1+AT)	/* post attributes - conditional */
 #define ACL (1+NFS_ACL_MAX_ENTRIES*3)  /* Access Control List */
 
-static struct svc_procedure		nfsd_acl_procedures2[] = {
+static const struct svc_procedure nfsd_acl_procedures2[] = {
   PROC(null,	void,		void,		void,	  RC_NOCACHE, ST),
   PROC(getacl,	getacl,		getacl,		getacl,	  RC_NOCACHE, ST+1+2*(1+ACL)),
   PROC(setacl,	setacl,		attrstat,	attrstat, RC_NOCACHE, ST+AT),
@@ -370,10 +378,12 @@ static struct svc_procedure		nfsd_acl_procedures2[] = {
   PROC(access,	access,		access,		access,   RC_NOCACHE, ST+AT+1),
 };
 
-struct svc_version	nfsd_acl_version2 = {
-		.vs_vers	= 2,
-		.vs_nproc	= 5,
-		.vs_proc	= nfsd_acl_procedures2,
-		.vs_dispatch	= nfsd_dispatch,
-		.vs_xdrsize	= NFS3_SVC_XDRSIZE,
+static unsigned int nfsd_acl_count2[ARRAY_SIZE(nfsd_acl_procedures2)];
+const struct svc_version nfsd_acl_version2 = {
+	.vs_vers	= 2,
+	.vs_nproc	= 5,
+	.vs_proc	= nfsd_acl_procedures2,
+	.vs_count	= nfsd_acl_count2,
+	.vs_dispatch	= nfsd_dispatch,
+	.vs_xdrsize	= NFS3_SVC_XDRSIZE,
 };
diff --git a/fs/nfsd/nfs3acl.c b/fs/nfsd/nfs3acl.c
index dcb5f79076c0..01976529f042 100644
--- a/fs/nfsd/nfs3acl.c
+++ b/fs/nfsd/nfs3acl.c
@@ -18,7 +18,7 @@
  * NULL call.
  */
 static __be32
-nfsd3_proc_null(struct svc_rqst *rqstp, void *argp, void *resp)
+nfsd3_proc_null(struct svc_rqst *rqstp)
 {
 	return nfs_ok;
 }
@@ -26,9 +26,10 @@ nfsd3_proc_null(struct svc_rqst *rqstp, void *argp, void *resp)
 /*
  * Get the Access and/or Default ACL of a file.
  */
-static __be32 nfsd3_proc_getacl(struct svc_rqst * rqstp,
-		struct nfsd3_getaclargs *argp, struct nfsd3_getaclres *resp)
+static __be32 nfsd3_proc_getacl(struct svc_rqst *rqstp)
 {
+	struct nfsd3_getaclargs *argp = rqstp->rq_argp;
+	struct nfsd3_getaclres *resp = rqstp->rq_resp;
 	struct posix_acl *acl;
 	struct inode *inode;
 	svc_fh *fh;
@@ -80,10 +81,10 @@ fail:
 /*
  * Set the Access and/or Default ACL of a file.
  */
-static __be32 nfsd3_proc_setacl(struct svc_rqst * rqstp,
-		struct nfsd3_setaclargs *argp,
-		struct nfsd3_attrstat *resp)
+static __be32 nfsd3_proc_setacl(struct svc_rqst *rqstp)
 {
+	struct nfsd3_setaclargs *argp = rqstp->rq_argp;
+	struct nfsd3_attrstat *resp = rqstp->rq_resp;
 	struct inode *inode;
 	svc_fh *fh;
 	__be32 nfserr = 0;
@@ -123,9 +124,10 @@ out:
 /*
  * XDR decode functions
  */
-static int nfs3svc_decode_getaclargs(struct svc_rqst *rqstp, __be32 *p,
-		struct nfsd3_getaclargs *args)
+static int nfs3svc_decode_getaclargs(struct svc_rqst *rqstp, __be32 *p)
 {
+	struct nfsd3_getaclargs *args = rqstp->rq_argp;
+
 	p = nfs3svc_decode_fh(p, &args->fh);
 	if (!p)
 		return 0;
@@ -135,9 +137,9 @@ static int nfs3svc_decode_getaclargs(struct svc_rqst *rqstp, __be32 *p,
 }
 
 
-static int nfs3svc_decode_setaclargs(struct svc_rqst *rqstp, __be32 *p,
-		struct nfsd3_setaclargs *args)
+static int nfs3svc_decode_setaclargs(struct svc_rqst *rqstp, __be32 *p)
 {
+	struct nfsd3_setaclargs *args = rqstp->rq_argp;
 	struct kvec *head = rqstp->rq_arg.head;
 	unsigned int base;
 	int n;
@@ -166,9 +168,9 @@ static int nfs3svc_decode_setaclargs(struct svc_rqst *rqstp, __be32 *p,
  */
 
 /* GETACL */
-static int nfs3svc_encode_getaclres(struct svc_rqst *rqstp, __be32 *p,
-		struct nfsd3_getaclres *resp)
+static int nfs3svc_encode_getaclres(struct svc_rqst *rqstp, __be32 *p)
 {
+	struct nfsd3_getaclres *resp = rqstp->rq_resp;
 	struct dentry *dentry = resp->fh.fh_dentry;
 
 	p = nfs3svc_encode_post_op_attr(rqstp, p, &resp->fh);
@@ -211,9 +213,10 @@ static int nfs3svc_encode_getaclres(struct svc_rqst *rqstp, __be32 *p,
 }
 
 /* SETACL */
-static int nfs3svc_encode_setaclres(struct svc_rqst *rqstp, __be32 *p,
-		struct nfsd3_attrstat *resp)
+static int nfs3svc_encode_setaclres(struct svc_rqst *rqstp, __be32 *p)
 {
+	struct nfsd3_attrstat *resp = rqstp->rq_resp;
+
 	p = nfs3svc_encode_post_op_attr(rqstp, p, &resp->fh);
 
 	return xdr_ressize_check(rqstp, p);
@@ -222,13 +225,13 @@ static int nfs3svc_encode_setaclres(struct svc_rqst *rqstp, __be32 *p,
 /*
  * XDR release functions
  */
-static int nfs3svc_release_getacl(struct svc_rqst *rqstp, __be32 *p,
-		struct nfsd3_getaclres *resp)
+static void nfs3svc_release_getacl(struct svc_rqst *rqstp)
 {
+	struct nfsd3_getaclres *resp = rqstp->rq_resp;
+
 	fh_put(&resp->fh);
 	posix_acl_release(resp->acl_access);
 	posix_acl_release(resp->acl_default);
-	return 1;
 }
 
 #define nfs3svc_decode_voidargs		NULL
@@ -237,34 +240,36 @@ static int nfs3svc_release_getacl(struct svc_rqst *rqstp, __be32 *p,
 #define nfsd3_voidres			nfsd3_voidargs
 struct nfsd3_voidargs { int dummy; };
 
-#define PROC(name, argt, rest, relt, cache, respsize)	\
- { (svc_procfunc) nfsd3_proc_##name,		\
-   (kxdrproc_t) nfs3svc_decode_##argt##args,	\
-   (kxdrproc_t) nfs3svc_encode_##rest##res,	\
-   (kxdrproc_t) nfs3svc_release_##relt,		\
-   sizeof(struct nfsd3_##argt##args),		\
-   sizeof(struct nfsd3_##rest##res),		\
-   0,						\
-   cache,					\
-   respsize,					\
- }
+#define PROC(name, argt, rest, relt, cache, respsize)			\
+{									\
+	.pc_func	= nfsd3_proc_##name,				\
+	.pc_decode	= nfs3svc_decode_##argt##args,			\
+	.pc_encode	= nfs3svc_encode_##rest##res,			\
+	.pc_release	= nfs3svc_release_##relt,			\
+	.pc_argsize	= sizeof(struct nfsd3_##argt##args),		\
+	.pc_ressize	= sizeof(struct nfsd3_##rest##res),		\
+	.pc_cachetype	= cache,					\
+	.pc_xdrressize	= respsize,					\
+}
 
 #define ST 1		/* status*/
 #define AT 21		/* attributes */
 #define pAT (1+AT)	/* post attributes - conditional */
 #define ACL (1+NFS_ACL_MAX_ENTRIES*3)  /* Access Control List */
 
-static struct svc_procedure		nfsd_acl_procedures3[] = {
+static const struct svc_procedure nfsd_acl_procedures3[] = {
   PROC(null,	void,		void,		void,	  RC_NOCACHE, ST),
   PROC(getacl,	getacl,		getacl,		getacl,	  RC_NOCACHE, ST+1+2*(1+ACL)),
   PROC(setacl,	setacl,		setacl,		fhandle,  RC_NOCACHE, ST+pAT),
 };
 
-struct svc_version	nfsd_acl_version3 = {
-		.vs_vers	= 3,
-		.vs_nproc	= 3,
-		.vs_proc	= nfsd_acl_procedures3,
-		.vs_dispatch	= nfsd_dispatch,
-		.vs_xdrsize	= NFS3_SVC_XDRSIZE,
+static unsigned int nfsd_acl_count3[ARRAY_SIZE(nfsd_acl_procedures3)];
+const struct svc_version nfsd_acl_version3 = {
+	.vs_vers	= 3,
+	.vs_nproc	= 3,
+	.vs_proc	= nfsd_acl_procedures3,
+	.vs_count	= nfsd_acl_count3,
+	.vs_dispatch	= nfsd_dispatch,
+	.vs_xdrsize	= NFS3_SVC_XDRSIZE,
 };
 
diff --git a/fs/nfsd/nfs3proc.c b/fs/nfsd/nfs3proc.c
index 045c9081eabe..2cb56a0d6625 100644
--- a/fs/nfsd/nfs3proc.c
+++ b/fs/nfsd/nfs3proc.c
@@ -31,7 +31,7 @@ static int	nfs3_ftypes[] = {
  * NULL call.
  */
 static __be32
-nfsd3_proc_null(struct svc_rqst *rqstp, void *argp, void *resp)
+nfsd3_proc_null(struct svc_rqst *rqstp)
 {
 	return nfs_ok;
 }
@@ -40,9 +40,10 @@ nfsd3_proc_null(struct svc_rqst *rqstp, void *argp, void *resp)
  * Get a file's attributes
  */
 static __be32
-nfsd3_proc_getattr(struct svc_rqst *rqstp, struct nfsd_fhandle  *argp,
-					   struct nfsd3_attrstat *resp)
+nfsd3_proc_getattr(struct svc_rqst *rqstp)
 {
+	struct nfsd_fhandle *argp = rqstp->rq_argp;
+	struct nfsd3_attrstat *resp = rqstp->rq_resp;
 	__be32	nfserr;
 
 	dprintk("nfsd: GETATTR(3)  %s\n",
@@ -63,9 +64,10 @@ nfsd3_proc_getattr(struct svc_rqst *rqstp, struct nfsd_fhandle  *argp,
  * Set a file's attributes
  */
 static __be32
-nfsd3_proc_setattr(struct svc_rqst *rqstp, struct nfsd3_sattrargs *argp,
-					   struct nfsd3_attrstat  *resp)
+nfsd3_proc_setattr(struct svc_rqst *rqstp)
 {
+	struct nfsd3_sattrargs *argp = rqstp->rq_argp;
+	struct nfsd3_attrstat *resp = rqstp->rq_resp;
 	__be32	nfserr;
 
 	dprintk("nfsd: SETATTR(3)  %s\n",
@@ -81,9 +83,10 @@ nfsd3_proc_setattr(struct svc_rqst *rqstp, struct nfsd3_sattrargs *argp,
  * Look up a path name component
  */
 static __be32
-nfsd3_proc_lookup(struct svc_rqst *rqstp, struct nfsd3_diropargs *argp,
-					  struct nfsd3_diropres  *resp)
+nfsd3_proc_lookup(struct svc_rqst *rqstp)
 {
+	struct nfsd3_diropargs *argp = rqstp->rq_argp;
+	struct nfsd3_diropres  *resp = rqstp->rq_resp;
 	__be32	nfserr;
 
 	dprintk("nfsd: LOOKUP(3)   %s %.*s\n",
@@ -105,9 +108,10 @@ nfsd3_proc_lookup(struct svc_rqst *rqstp, struct nfsd3_diropargs *argp,
  * Check file access
  */
 static __be32
-nfsd3_proc_access(struct svc_rqst *rqstp, struct nfsd3_accessargs *argp,
-					  struct nfsd3_accessres *resp)
+nfsd3_proc_access(struct svc_rqst *rqstp)
 {
+	struct nfsd3_accessargs *argp = rqstp->rq_argp;
+	struct nfsd3_accessres *resp = rqstp->rq_resp;
 	__be32	nfserr;
 
 	dprintk("nfsd: ACCESS(3)   %s 0x%x\n",
@@ -124,9 +128,10 @@ nfsd3_proc_access(struct svc_rqst *rqstp, struct nfsd3_accessargs *argp,
  * Read a symlink.
  */
 static __be32
-nfsd3_proc_readlink(struct svc_rqst *rqstp, struct nfsd3_readlinkargs *argp,
-					   struct nfsd3_readlinkres *resp)
+nfsd3_proc_readlink(struct svc_rqst *rqstp)
 {
+	struct nfsd3_readlinkargs *argp = rqstp->rq_argp;
+	struct nfsd3_readlinkres *resp = rqstp->rq_resp;
 	__be32 nfserr;
 
 	dprintk("nfsd: READLINK(3) %s\n", SVCFH_fmt(&argp->fh));
@@ -142,9 +147,10 @@ nfsd3_proc_readlink(struct svc_rqst *rqstp, struct nfsd3_readlinkargs *argp,
  * Read a portion of a file.
  */
 static __be32
-nfsd3_proc_read(struct svc_rqst *rqstp, struct nfsd3_readargs *argp,
-				        struct nfsd3_readres  *resp)
+nfsd3_proc_read(struct svc_rqst *rqstp)
 {
+	struct nfsd3_readargs *argp = rqstp->rq_argp;
+	struct nfsd3_readres *resp = rqstp->rq_resp;
 	__be32	nfserr;
 	u32	max_blocksize = svc_max_payload(rqstp);
 	unsigned long cnt = min(argp->count, max_blocksize);
@@ -179,9 +185,10 @@ nfsd3_proc_read(struct svc_rqst *rqstp, struct nfsd3_readargs *argp,
  * Write data to a file
  */
 static __be32
-nfsd3_proc_write(struct svc_rqst *rqstp, struct nfsd3_writeargs *argp,
-					 struct nfsd3_writeres  *resp)
+nfsd3_proc_write(struct svc_rqst *rqstp)
 {
+	struct nfsd3_writeargs *argp = rqstp->rq_argp;
+	struct nfsd3_writeres *resp = rqstp->rq_resp;
 	__be32	nfserr;
 	unsigned long cnt = argp->len;
 
@@ -206,9 +213,10 @@ nfsd3_proc_write(struct svc_rqst *rqstp, struct nfsd3_writeargs *argp,
  * first reports about SunOS compatibility problems start to pour in...
  */
 static __be32
-nfsd3_proc_create(struct svc_rqst *rqstp, struct nfsd3_createargs *argp,
-					  struct nfsd3_diropres   *resp)
+nfsd3_proc_create(struct svc_rqst *rqstp)
 {
+	struct nfsd3_createargs *argp = rqstp->rq_argp;
+	struct nfsd3_diropres *resp = rqstp->rq_resp;
 	svc_fh		*dirfhp, *newfhp = NULL;
 	struct iattr	*attr;
 	__be32		nfserr;
@@ -243,9 +251,10 @@ nfsd3_proc_create(struct svc_rqst *rqstp, struct nfsd3_createargs *argp,
  * Make directory. This operation is not idempotent.
  */
 static __be32
-nfsd3_proc_mkdir(struct svc_rqst *rqstp, struct nfsd3_createargs *argp,
-					 struct nfsd3_diropres   *resp)
+nfsd3_proc_mkdir(struct svc_rqst *rqstp)
 {
+	struct nfsd3_createargs *argp = rqstp->rq_argp;
+	struct nfsd3_diropres *resp = rqstp->rq_resp;
 	__be32	nfserr;
 
 	dprintk("nfsd: MKDIR(3)    %s %.*s\n",
@@ -263,9 +272,10 @@ nfsd3_proc_mkdir(struct svc_rqst *rqstp, struct nfsd3_createargs *argp,
 }
 
 static __be32
-nfsd3_proc_symlink(struct svc_rqst *rqstp, struct nfsd3_symlinkargs *argp,
-					   struct nfsd3_diropres    *resp)
+nfsd3_proc_symlink(struct svc_rqst *rqstp)
 {
+	struct nfsd3_symlinkargs *argp = rqstp->rq_argp;
+	struct nfsd3_diropres *resp = rqstp->rq_resp;
 	__be32	nfserr;
 
 	dprintk("nfsd: SYMLINK(3)  %s %.*s -> %.*s\n",
@@ -284,9 +294,10 @@ nfsd3_proc_symlink(struct svc_rqst *rqstp, struct nfsd3_symlinkargs *argp,
  * Make socket/fifo/device.
  */
 static __be32
-nfsd3_proc_mknod(struct svc_rqst *rqstp, struct nfsd3_mknodargs *argp,
-					 struct nfsd3_diropres  *resp)
+nfsd3_proc_mknod(struct svc_rqst *rqstp)
 {
+	struct nfsd3_mknodargs *argp = rqstp->rq_argp;
+	struct nfsd3_diropres  *resp = rqstp->rq_resp;
 	__be32	nfserr;
 	int type;
 	dev_t	rdev = 0;
@@ -321,9 +332,10 @@ nfsd3_proc_mknod(struct svc_rqst *rqstp, struct nfsd3_mknodargs *argp,
  * Remove file/fifo/socket etc.
  */
 static __be32
-nfsd3_proc_remove(struct svc_rqst *rqstp, struct nfsd3_diropargs *argp,
-					  struct nfsd3_attrstat  *resp)
+nfsd3_proc_remove(struct svc_rqst *rqstp)
 {
+	struct nfsd3_diropargs *argp = rqstp->rq_argp;
+	struct nfsd3_attrstat *resp = rqstp->rq_resp;
 	__be32	nfserr;
 
 	dprintk("nfsd: REMOVE(3)   %s %.*s\n",
@@ -342,9 +354,10 @@ nfsd3_proc_remove(struct svc_rqst *rqstp, struct nfsd3_diropargs *argp,
  * Remove a directory
  */
 static __be32
-nfsd3_proc_rmdir(struct svc_rqst *rqstp, struct nfsd3_diropargs *argp,
-					 struct nfsd3_attrstat  *resp)
+nfsd3_proc_rmdir(struct svc_rqst *rqstp)
 {
+	struct nfsd3_diropargs *argp = rqstp->rq_argp;
+	struct nfsd3_attrstat *resp = rqstp->rq_resp;
 	__be32	nfserr;
 
 	dprintk("nfsd: RMDIR(3)    %s %.*s\n",
@@ -359,9 +372,10 @@ nfsd3_proc_rmdir(struct svc_rqst *rqstp, struct nfsd3_diropargs *argp,
 }
 
 static __be32
-nfsd3_proc_rename(struct svc_rqst *rqstp, struct nfsd3_renameargs *argp,
-					  struct nfsd3_renameres  *resp)
+nfsd3_proc_rename(struct svc_rqst *rqstp)
 {
+	struct nfsd3_renameargs *argp = rqstp->rq_argp;
+	struct nfsd3_renameres *resp = rqstp->rq_resp;
 	__be32	nfserr;
 
 	dprintk("nfsd: RENAME(3)   %s %.*s ->\n",
@@ -381,9 +395,10 @@ nfsd3_proc_rename(struct svc_rqst *rqstp, struct nfsd3_renameargs *argp,
 }
 
 static __be32
-nfsd3_proc_link(struct svc_rqst *rqstp, struct nfsd3_linkargs *argp,
-					struct nfsd3_linkres  *resp)
+nfsd3_proc_link(struct svc_rqst *rqstp)
 {
+	struct nfsd3_linkargs *argp = rqstp->rq_argp;
+	struct nfsd3_linkres  *resp = rqstp->rq_resp;
 	__be32	nfserr;
 
 	dprintk("nfsd: LINK(3)     %s ->\n",
@@ -404,9 +419,10 @@ nfsd3_proc_link(struct svc_rqst *rqstp, struct nfsd3_linkargs *argp,
  * Read a portion of a directory.
  */
 static __be32
-nfsd3_proc_readdir(struct svc_rqst *rqstp, struct nfsd3_readdirargs *argp,
-					   struct nfsd3_readdirres  *resp)
+nfsd3_proc_readdir(struct svc_rqst *rqstp)
 {
+	struct nfsd3_readdirargs *argp = rqstp->rq_argp;
+	struct nfsd3_readdirres  *resp = rqstp->rq_resp;
 	__be32		nfserr;
 	int		count;
 
@@ -440,9 +456,10 @@ nfsd3_proc_readdir(struct svc_rqst *rqstp, struct nfsd3_readdirargs *argp,
  * For now, we choose to ignore the dircount parameter.
  */
 static __be32
-nfsd3_proc_readdirplus(struct svc_rqst *rqstp, struct nfsd3_readdirargs *argp,
-					       struct nfsd3_readdirres  *resp)
+nfsd3_proc_readdirplus(struct svc_rqst *rqstp)
 {
+	struct nfsd3_readdirargs *argp = rqstp->rq_argp;
+	struct nfsd3_readdirres  *resp = rqstp->rq_resp;
 	__be32	nfserr;
 	int	count = 0;
 	loff_t	offset;
@@ -507,9 +524,10 @@ nfsd3_proc_readdirplus(struct svc_rqst *rqstp, struct nfsd3_readdirargs *argp,
  * Get file system stats
  */
 static __be32
-nfsd3_proc_fsstat(struct svc_rqst * rqstp, struct nfsd_fhandle    *argp,
-					   struct nfsd3_fsstatres *resp)
+nfsd3_proc_fsstat(struct svc_rqst *rqstp)
 {
+	struct nfsd_fhandle *argp = rqstp->rq_argp;
+	struct nfsd3_fsstatres *resp = rqstp->rq_resp;
 	__be32	nfserr;
 
 	dprintk("nfsd: FSSTAT(3)   %s\n",
@@ -524,9 +542,10 @@ nfsd3_proc_fsstat(struct svc_rqst * rqstp, struct nfsd_fhandle    *argp,
  * Get file system info
  */
 static __be32
-nfsd3_proc_fsinfo(struct svc_rqst * rqstp, struct nfsd_fhandle    *argp,
-					   struct nfsd3_fsinfores *resp)
+nfsd3_proc_fsinfo(struct svc_rqst *rqstp)
 {
+	struct nfsd_fhandle *argp = rqstp->rq_argp;
+	struct nfsd3_fsinfores *resp = rqstp->rq_resp;
 	__be32	nfserr;
 	u32	max_blocksize = svc_max_payload(rqstp);
 
@@ -567,9 +586,10 @@ nfsd3_proc_fsinfo(struct svc_rqst * rqstp, struct nfsd_fhandle    *argp,
  * Get pathconf info for the specified file
  */
 static __be32
-nfsd3_proc_pathconf(struct svc_rqst * rqstp, struct nfsd_fhandle      *argp,
-					     struct nfsd3_pathconfres *resp)
+nfsd3_proc_pathconf(struct svc_rqst *rqstp)
 {
+	struct nfsd_fhandle *argp = rqstp->rq_argp;
+	struct nfsd3_pathconfres *resp = rqstp->rq_resp;
 	__be32	nfserr;
 
 	dprintk("nfsd: PATHCONF(3) %s\n",
@@ -610,9 +630,10 @@ nfsd3_proc_pathconf(struct svc_rqst * rqstp, struct nfsd_fhandle      *argp,
  * Commit a file (range) to stable storage.
  */
 static __be32
-nfsd3_proc_commit(struct svc_rqst * rqstp, struct nfsd3_commitargs *argp,
-					   struct nfsd3_commitres  *resp)
+nfsd3_proc_commit(struct svc_rqst *rqstp)
 {
+	struct nfsd3_commitargs *argp = rqstp->rq_argp;
+	struct nfsd3_commitres *resp = rqstp->rq_resp;
 	__be32	nfserr;
 
 	dprintk("nfsd: COMMIT(3)   %s %u@%Lu\n",
@@ -647,233 +668,221 @@ nfsd3_proc_commit(struct svc_rqst * rqstp, struct nfsd3_commitargs *argp,
 #define nfsd3_voidres			nfsd3_voidargs
 struct nfsd3_voidargs { int dummy; };
 
-#define PROC(name, argt, rest, relt, cache, respsize)	\
- { (svc_procfunc) nfsd3_proc_##name,		\
-   (kxdrproc_t) nfs3svc_decode_##argt##args,	\
-   (kxdrproc_t) nfs3svc_encode_##rest##res,	\
-   (kxdrproc_t) nfs3svc_release_##relt,		\
-   sizeof(struct nfsd3_##argt##args),		\
-   sizeof(struct nfsd3_##rest##res),		\
-   0,						\
-   cache,					\
-   respsize,					\
- }
-
 #define ST 1		/* status*/
 #define FH 17		/* filehandle with length */
 #define AT 21		/* attributes */
 #define pAT (1+AT)	/* post attributes - conditional */
 #define WC (7+pAT)	/* WCC attributes */
 
-static struct svc_procedure		nfsd_procedures3[22] = {
+static const struct svc_procedure nfsd_procedures3[22] = {
 	[NFS3PROC_NULL] = {
-		.pc_func = (svc_procfunc) nfsd3_proc_null,
-		.pc_encode = (kxdrproc_t) nfs3svc_encode_voidres,
+		.pc_func = nfsd3_proc_null,
+		.pc_encode = nfs3svc_encode_voidres,
 		.pc_argsize = sizeof(struct nfsd3_voidargs),
 		.pc_ressize = sizeof(struct nfsd3_voidres),
 		.pc_cachetype = RC_NOCACHE,
 		.pc_xdrressize = ST,
 	},
 	[NFS3PROC_GETATTR] = {
-		.pc_func = (svc_procfunc) nfsd3_proc_getattr,
-		.pc_decode = (kxdrproc_t) nfs3svc_decode_fhandleargs,
-		.pc_encode = (kxdrproc_t) nfs3svc_encode_attrstatres,
-		.pc_release = (kxdrproc_t) nfs3svc_release_fhandle,
+		.pc_func = nfsd3_proc_getattr,
+		.pc_decode = nfs3svc_decode_fhandleargs,
+		.pc_encode = nfs3svc_encode_attrstatres,
+		.pc_release = nfs3svc_release_fhandle,
 		.pc_argsize = sizeof(struct nfsd3_fhandleargs),
 		.pc_ressize = sizeof(struct nfsd3_attrstatres),
 		.pc_cachetype = RC_NOCACHE,
 		.pc_xdrressize = ST+AT,
 	},
 	[NFS3PROC_SETATTR] = {
-		.pc_func = (svc_procfunc) nfsd3_proc_setattr,
-		.pc_decode = (kxdrproc_t) nfs3svc_decode_sattrargs,
-		.pc_encode = (kxdrproc_t) nfs3svc_encode_wccstatres,
-		.pc_release = (kxdrproc_t) nfs3svc_release_fhandle,
+		.pc_func = nfsd3_proc_setattr,
+		.pc_decode = nfs3svc_decode_sattrargs,
+		.pc_encode = nfs3svc_encode_wccstatres,
+		.pc_release = nfs3svc_release_fhandle,
 		.pc_argsize = sizeof(struct nfsd3_sattrargs),
 		.pc_ressize = sizeof(struct nfsd3_wccstatres),
 		.pc_cachetype = RC_REPLBUFF,
 		.pc_xdrressize = ST+WC,
 	},
 	[NFS3PROC_LOOKUP] = {
-		.pc_func = (svc_procfunc) nfsd3_proc_lookup,
-		.pc_decode = (kxdrproc_t) nfs3svc_decode_diropargs,
-		.pc_encode = (kxdrproc_t) nfs3svc_encode_diropres,
-		.pc_release = (kxdrproc_t) nfs3svc_release_fhandle2,
+		.pc_func = nfsd3_proc_lookup,
+		.pc_decode = nfs3svc_decode_diropargs,
+		.pc_encode = nfs3svc_encode_diropres,
+		.pc_release = nfs3svc_release_fhandle2,
 		.pc_argsize = sizeof(struct nfsd3_diropargs),
 		.pc_ressize = sizeof(struct nfsd3_diropres),
 		.pc_cachetype = RC_NOCACHE,
 		.pc_xdrressize = ST+FH+pAT+pAT,
 	},
 	[NFS3PROC_ACCESS] = {
-		.pc_func = (svc_procfunc) nfsd3_proc_access,
-		.pc_decode = (kxdrproc_t) nfs3svc_decode_accessargs,
-		.pc_encode = (kxdrproc_t) nfs3svc_encode_accessres,
-		.pc_release = (kxdrproc_t) nfs3svc_release_fhandle,
+		.pc_func = nfsd3_proc_access,
+		.pc_decode = nfs3svc_decode_accessargs,
+		.pc_encode = nfs3svc_encode_accessres,
+		.pc_release = nfs3svc_release_fhandle,
 		.pc_argsize = sizeof(struct nfsd3_accessargs),
 		.pc_ressize = sizeof(struct nfsd3_accessres),
 		.pc_cachetype = RC_NOCACHE,
 		.pc_xdrressize = ST+pAT+1,
 	},
 	[NFS3PROC_READLINK] = {
-		.pc_func = (svc_procfunc) nfsd3_proc_readlink,
-		.pc_decode = (kxdrproc_t) nfs3svc_decode_readlinkargs,
-		.pc_encode = (kxdrproc_t) nfs3svc_encode_readlinkres,
-		.pc_release = (kxdrproc_t) nfs3svc_release_fhandle,
+		.pc_func = nfsd3_proc_readlink,
+		.pc_decode = nfs3svc_decode_readlinkargs,
+		.pc_encode = nfs3svc_encode_readlinkres,
+		.pc_release = nfs3svc_release_fhandle,
 		.pc_argsize = sizeof(struct nfsd3_readlinkargs),
 		.pc_ressize = sizeof(struct nfsd3_readlinkres),
 		.pc_cachetype = RC_NOCACHE,
 		.pc_xdrressize = ST+pAT+1+NFS3_MAXPATHLEN/4,
 	},
 	[NFS3PROC_READ] = {
-		.pc_func = (svc_procfunc) nfsd3_proc_read,
-		.pc_decode = (kxdrproc_t) nfs3svc_decode_readargs,
-		.pc_encode = (kxdrproc_t) nfs3svc_encode_readres,
-		.pc_release = (kxdrproc_t) nfs3svc_release_fhandle,
+		.pc_func = nfsd3_proc_read,
+		.pc_decode = nfs3svc_decode_readargs,
+		.pc_encode = nfs3svc_encode_readres,
+		.pc_release = nfs3svc_release_fhandle,
 		.pc_argsize = sizeof(struct nfsd3_readargs),
 		.pc_ressize = sizeof(struct nfsd3_readres),
 		.pc_cachetype = RC_NOCACHE,
 		.pc_xdrressize = ST+pAT+4+NFSSVC_MAXBLKSIZE/4,
 	},
 	[NFS3PROC_WRITE] = {
-		.pc_func = (svc_procfunc) nfsd3_proc_write,
-		.pc_decode = (kxdrproc_t) nfs3svc_decode_writeargs,
-		.pc_encode = (kxdrproc_t) nfs3svc_encode_writeres,
-		.pc_release = (kxdrproc_t) nfs3svc_release_fhandle,
+		.pc_func = nfsd3_proc_write,
+		.pc_decode = nfs3svc_decode_writeargs,
+		.pc_encode = nfs3svc_encode_writeres,
+		.pc_release = nfs3svc_release_fhandle,
 		.pc_argsize = sizeof(struct nfsd3_writeargs),
 		.pc_ressize = sizeof(struct nfsd3_writeres),
 		.pc_cachetype = RC_REPLBUFF,
 		.pc_xdrressize = ST+WC+4,
 	},
 	[NFS3PROC_CREATE] = {
-		.pc_func = (svc_procfunc) nfsd3_proc_create,
-		.pc_decode = (kxdrproc_t) nfs3svc_decode_createargs,
-		.pc_encode = (kxdrproc_t) nfs3svc_encode_createres,
-		.pc_release = (kxdrproc_t) nfs3svc_release_fhandle2,
+		.pc_func = nfsd3_proc_create,
+		.pc_decode = nfs3svc_decode_createargs,
+		.pc_encode = nfs3svc_encode_createres,
+		.pc_release = nfs3svc_release_fhandle2,
 		.pc_argsize = sizeof(struct nfsd3_createargs),
 		.pc_ressize = sizeof(struct nfsd3_createres),
 		.pc_cachetype = RC_REPLBUFF,
 		.pc_xdrressize = ST+(1+FH+pAT)+WC,
 	},
 	[NFS3PROC_MKDIR] = {
-		.pc_func = (svc_procfunc) nfsd3_proc_mkdir,
-		.pc_decode = (kxdrproc_t) nfs3svc_decode_mkdirargs,
-		.pc_encode = (kxdrproc_t) nfs3svc_encode_createres,
-		.pc_release = (kxdrproc_t) nfs3svc_release_fhandle2,
+		.pc_func = nfsd3_proc_mkdir,
+		.pc_decode = nfs3svc_decode_mkdirargs,
+		.pc_encode = nfs3svc_encode_createres,
+		.pc_release = nfs3svc_release_fhandle2,
 		.pc_argsize = sizeof(struct nfsd3_mkdirargs),
 		.pc_ressize = sizeof(struct nfsd3_createres),
 		.pc_cachetype = RC_REPLBUFF,
 		.pc_xdrressize = ST+(1+FH+pAT)+WC,
 	},
 	[NFS3PROC_SYMLINK] = {
-		.pc_func = (svc_procfunc) nfsd3_proc_symlink,
-		.pc_decode = (kxdrproc_t) nfs3svc_decode_symlinkargs,
-		.pc_encode = (kxdrproc_t) nfs3svc_encode_createres,
-		.pc_release = (kxdrproc_t) nfs3svc_release_fhandle2,
+		.pc_func = nfsd3_proc_symlink,
+		.pc_decode = nfs3svc_decode_symlinkargs,
+		.pc_encode = nfs3svc_encode_createres,
+		.pc_release = nfs3svc_release_fhandle2,
 		.pc_argsize = sizeof(struct nfsd3_symlinkargs),
 		.pc_ressize = sizeof(struct nfsd3_createres),
 		.pc_cachetype = RC_REPLBUFF,
 		.pc_xdrressize = ST+(1+FH+pAT)+WC,
 	},
 	[NFS3PROC_MKNOD] = {
-		.pc_func = (svc_procfunc) nfsd3_proc_mknod,
-		.pc_decode = (kxdrproc_t) nfs3svc_decode_mknodargs,
-		.pc_encode = (kxdrproc_t) nfs3svc_encode_createres,
-		.pc_release = (kxdrproc_t) nfs3svc_release_fhandle2,
+		.pc_func = nfsd3_proc_mknod,
+		.pc_decode = nfs3svc_decode_mknodargs,
+		.pc_encode = nfs3svc_encode_createres,
+		.pc_release = nfs3svc_release_fhandle2,
 		.pc_argsize = sizeof(struct nfsd3_mknodargs),
 		.pc_ressize = sizeof(struct nfsd3_createres),
 		.pc_cachetype = RC_REPLBUFF,
 		.pc_xdrressize = ST+(1+FH+pAT)+WC,
 	},
 	[NFS3PROC_REMOVE] = {
-		.pc_func = (svc_procfunc) nfsd3_proc_remove,
-		.pc_decode = (kxdrproc_t) nfs3svc_decode_diropargs,
-		.pc_encode = (kxdrproc_t) nfs3svc_encode_wccstatres,
-		.pc_release = (kxdrproc_t) nfs3svc_release_fhandle,
+		.pc_func = nfsd3_proc_remove,
+		.pc_decode = nfs3svc_decode_diropargs,
+		.pc_encode = nfs3svc_encode_wccstatres,
+		.pc_release = nfs3svc_release_fhandle,
 		.pc_argsize = sizeof(struct nfsd3_diropargs),
 		.pc_ressize = sizeof(struct nfsd3_wccstatres),
 		.pc_cachetype = RC_REPLBUFF,
 		.pc_xdrressize = ST+WC,
 	},
 	[NFS3PROC_RMDIR] = {
-		.pc_func = (svc_procfunc) nfsd3_proc_rmdir,
-		.pc_decode = (kxdrproc_t) nfs3svc_decode_diropargs,
-		.pc_encode = (kxdrproc_t) nfs3svc_encode_wccstatres,
-		.pc_release = (kxdrproc_t) nfs3svc_release_fhandle,
+		.pc_func = nfsd3_proc_rmdir,
+		.pc_decode = nfs3svc_decode_diropargs,
+		.pc_encode = nfs3svc_encode_wccstatres,
+		.pc_release = nfs3svc_release_fhandle,
 		.pc_argsize = sizeof(struct nfsd3_diropargs),
 		.pc_ressize = sizeof(struct nfsd3_wccstatres),
 		.pc_cachetype = RC_REPLBUFF,
 		.pc_xdrressize = ST+WC,
 	},
 	[NFS3PROC_RENAME] = {
-		.pc_func = (svc_procfunc) nfsd3_proc_rename,
-		.pc_decode = (kxdrproc_t) nfs3svc_decode_renameargs,
-		.pc_encode = (kxdrproc_t) nfs3svc_encode_renameres,
-		.pc_release = (kxdrproc_t) nfs3svc_release_fhandle2,
+		.pc_func = nfsd3_proc_rename,
+		.pc_decode = nfs3svc_decode_renameargs,
+		.pc_encode = nfs3svc_encode_renameres,
+		.pc_release = nfs3svc_release_fhandle2,
 		.pc_argsize = sizeof(struct nfsd3_renameargs),
 		.pc_ressize = sizeof(struct nfsd3_renameres),
 		.pc_cachetype = RC_REPLBUFF,
 		.pc_xdrressize = ST+WC+WC,
 	},
 	[NFS3PROC_LINK] = {
-		.pc_func = (svc_procfunc) nfsd3_proc_link,
-		.pc_decode = (kxdrproc_t) nfs3svc_decode_linkargs,
-		.pc_encode = (kxdrproc_t) nfs3svc_encode_linkres,
-		.pc_release = (kxdrproc_t) nfs3svc_release_fhandle2,
+		.pc_func = nfsd3_proc_link,
+		.pc_decode = nfs3svc_decode_linkargs,
+		.pc_encode = nfs3svc_encode_linkres,
+		.pc_release = nfs3svc_release_fhandle2,
 		.pc_argsize = sizeof(struct nfsd3_linkargs),
 		.pc_ressize = sizeof(struct nfsd3_linkres),
 		.pc_cachetype = RC_REPLBUFF,
 		.pc_xdrressize = ST+pAT+WC,
 	},
 	[NFS3PROC_READDIR] = {
-		.pc_func = (svc_procfunc) nfsd3_proc_readdir,
-		.pc_decode = (kxdrproc_t) nfs3svc_decode_readdirargs,
-		.pc_encode = (kxdrproc_t) nfs3svc_encode_readdirres,
-		.pc_release = (kxdrproc_t) nfs3svc_release_fhandle,
+		.pc_func = nfsd3_proc_readdir,
+		.pc_decode = nfs3svc_decode_readdirargs,
+		.pc_encode = nfs3svc_encode_readdirres,
+		.pc_release = nfs3svc_release_fhandle,
 		.pc_argsize = sizeof(struct nfsd3_readdirargs),
 		.pc_ressize = sizeof(struct nfsd3_readdirres),
 		.pc_cachetype = RC_NOCACHE,
 	},
 	[NFS3PROC_READDIRPLUS] = {
-		.pc_func = (svc_procfunc) nfsd3_proc_readdirplus,
-		.pc_decode = (kxdrproc_t) nfs3svc_decode_readdirplusargs,
-		.pc_encode = (kxdrproc_t) nfs3svc_encode_readdirres,
-		.pc_release = (kxdrproc_t) nfs3svc_release_fhandle,
+		.pc_func = nfsd3_proc_readdirplus,
+		.pc_decode = nfs3svc_decode_readdirplusargs,
+		.pc_encode = nfs3svc_encode_readdirres,
+		.pc_release = nfs3svc_release_fhandle,
 		.pc_argsize = sizeof(struct nfsd3_readdirplusargs),
 		.pc_ressize = sizeof(struct nfsd3_readdirres),
 		.pc_cachetype = RC_NOCACHE,
 	},
 	[NFS3PROC_FSSTAT] = {
-		.pc_func = (svc_procfunc) nfsd3_proc_fsstat,
-		.pc_decode = (kxdrproc_t) nfs3svc_decode_fhandleargs,
-		.pc_encode = (kxdrproc_t) nfs3svc_encode_fsstatres,
+		.pc_func = nfsd3_proc_fsstat,
+		.pc_decode = nfs3svc_decode_fhandleargs,
+		.pc_encode = nfs3svc_encode_fsstatres,
 		.pc_argsize = sizeof(struct nfsd3_fhandleargs),
 		.pc_ressize = sizeof(struct nfsd3_fsstatres),
 		.pc_cachetype = RC_NOCACHE,
 		.pc_xdrressize = ST+pAT+2*6+1,
 	},
 	[NFS3PROC_FSINFO] = {
-		.pc_func = (svc_procfunc) nfsd3_proc_fsinfo,
-		.pc_decode = (kxdrproc_t) nfs3svc_decode_fhandleargs,
-		.pc_encode = (kxdrproc_t) nfs3svc_encode_fsinfores,
+		.pc_func = nfsd3_proc_fsinfo,
+		.pc_decode = nfs3svc_decode_fhandleargs,
+		.pc_encode = nfs3svc_encode_fsinfores,
 		.pc_argsize = sizeof(struct nfsd3_fhandleargs),
 		.pc_ressize = sizeof(struct nfsd3_fsinfores),
 		.pc_cachetype = RC_NOCACHE,
 		.pc_xdrressize = ST+pAT+12,
 	},
 	[NFS3PROC_PATHCONF] = {
-		.pc_func = (svc_procfunc) nfsd3_proc_pathconf,
-		.pc_decode = (kxdrproc_t) nfs3svc_decode_fhandleargs,
-		.pc_encode = (kxdrproc_t) nfs3svc_encode_pathconfres,
+		.pc_func = nfsd3_proc_pathconf,
+		.pc_decode = nfs3svc_decode_fhandleargs,
+		.pc_encode = nfs3svc_encode_pathconfres,
 		.pc_argsize = sizeof(struct nfsd3_fhandleargs),
 		.pc_ressize = sizeof(struct nfsd3_pathconfres),
 		.pc_cachetype = RC_NOCACHE,
 		.pc_xdrressize = ST+pAT+6,
 	},
 	[NFS3PROC_COMMIT] = {
-		.pc_func = (svc_procfunc) nfsd3_proc_commit,
-		.pc_decode = (kxdrproc_t) nfs3svc_decode_commitargs,
-		.pc_encode = (kxdrproc_t) nfs3svc_encode_commitres,
-		.pc_release = (kxdrproc_t) nfs3svc_release_fhandle,
+		.pc_func = nfsd3_proc_commit,
+		.pc_decode = nfs3svc_decode_commitargs,
+		.pc_encode = nfs3svc_encode_commitres,
+		.pc_release = nfs3svc_release_fhandle,
 		.pc_argsize = sizeof(struct nfsd3_commitargs),
 		.pc_ressize = sizeof(struct nfsd3_commitres),
 		.pc_cachetype = RC_NOCACHE,
@@ -881,10 +890,12 @@ static struct svc_procedure		nfsd_procedures3[22] = {
 	},
 };
 
-struct svc_version	nfsd_version3 = {
-		.vs_vers	= 3,
-		.vs_nproc	= 22,
-		.vs_proc	= nfsd_procedures3,
-		.vs_dispatch	= nfsd_dispatch,
-		.vs_xdrsize	= NFS3_SVC_XDRSIZE,
+static unsigned int nfsd_count3[ARRAY_SIZE(nfsd_procedures3)];
+const struct svc_version nfsd_version3 = {
+	.vs_vers	= 3,
+	.vs_nproc	= 22,
+	.vs_proc	= nfsd_procedures3,
+	.vs_dispatch	= nfsd_dispatch,
+	.vs_count	= nfsd_count3,
+	.vs_xdrsize	= NFS3_SVC_XDRSIZE,
 };
diff --git a/fs/nfsd/nfs3xdr.c b/fs/nfsd/nfs3xdr.c
index 452334694a5d..bf444b664011 100644
--- a/fs/nfsd/nfs3xdr.c
+++ b/fs/nfsd/nfs3xdr.c
@@ -260,7 +260,7 @@ void fill_post_wcc(struct svc_fh *fhp)
 		printk("nfsd: inode locked twice during operation.\n");
 
 	err = fh_getattr(fhp, &fhp->fh_post_attr);
-	fhp->fh_post_change = d_inode(fhp->fh_dentry)->i_version;
+	fhp->fh_post_change = nfsd4_change_attribute(d_inode(fhp->fh_dentry));
 	if (err) {
 		fhp->fh_post_saved = false;
 		/* Grab the ctime anyway - set_change_info might use it */
@@ -273,8 +273,10 @@ void fill_post_wcc(struct svc_fh *fhp)
  * XDR decode functions
  */
 int
-nfs3svc_decode_fhandle(struct svc_rqst *rqstp, __be32 *p, struct nfsd_fhandle *args)
+nfs3svc_decode_fhandle(struct svc_rqst *rqstp, __be32 *p)
 {
+	struct nfsd_fhandle *args = rqstp->rq_argp;
+
 	p = decode_fh(p, &args->fh);
 	if (!p)
 		return 0;
@@ -282,9 +284,10 @@ nfs3svc_decode_fhandle(struct svc_rqst *rqstp, __be32 *p, struct nfsd_fhandle *a
 }
 
 int
-nfs3svc_decode_sattrargs(struct svc_rqst *rqstp, __be32 *p,
-					struct nfsd3_sattrargs *args)
+nfs3svc_decode_sattrargs(struct svc_rqst *rqstp, __be32 *p)
 {
+	struct nfsd3_sattrargs *args = rqstp->rq_argp;
+
 	p = decode_fh(p, &args->fh);
 	if (!p)
 		return 0;
@@ -300,9 +303,10 @@ nfs3svc_decode_sattrargs(struct svc_rqst *rqstp, __be32 *p,
 }
 
 int
-nfs3svc_decode_diropargs(struct svc_rqst *rqstp, __be32 *p,
-					struct nfsd3_diropargs *args)
+nfs3svc_decode_diropargs(struct svc_rqst *rqstp, __be32 *p)
 {
+	struct nfsd3_diropargs *args = rqstp->rq_argp;
+
 	if (!(p = decode_fh(p, &args->fh))
 	 || !(p = decode_filename(p, &args->name, &args->len)))
 		return 0;
@@ -311,9 +315,10 @@ nfs3svc_decode_diropargs(struct svc_rqst *rqstp, __be32 *p,
 }
 
 int
-nfs3svc_decode_accessargs(struct svc_rqst *rqstp, __be32 *p,
-					struct nfsd3_accessargs *args)
+nfs3svc_decode_accessargs(struct svc_rqst *rqstp, __be32 *p)
 {
+	struct nfsd3_accessargs *args = rqstp->rq_argp;
+
 	p = decode_fh(p, &args->fh);
 	if (!p)
 		return 0;
@@ -323,9 +328,9 @@ nfs3svc_decode_accessargs(struct svc_rqst *rqstp, __be32 *p,
 }
 
 int
-nfs3svc_decode_readargs(struct svc_rqst *rqstp, __be32 *p,
-					struct nfsd3_readargs *args)
+nfs3svc_decode_readargs(struct svc_rqst *rqstp, __be32 *p)
 {
+	struct nfsd3_readargs *args = rqstp->rq_argp;
 	unsigned int len;
 	int v;
 	u32 max_blocksize = svc_max_payload(rqstp);
@@ -353,9 +358,9 @@ nfs3svc_decode_readargs(struct svc_rqst *rqstp, __be32 *p,
 }
 
 int
-nfs3svc_decode_writeargs(struct svc_rqst *rqstp, __be32 *p,
-					struct nfsd3_writeargs *args)
+nfs3svc_decode_writeargs(struct svc_rqst *rqstp, __be32 *p)
 {
+	struct nfsd3_writeargs *args = rqstp->rq_argp;
 	unsigned int len, v, hdr, dlen;
 	u32 max_blocksize = svc_max_payload(rqstp);
 	struct kvec *head = rqstp->rq_arg.head;
@@ -413,9 +418,10 @@ nfs3svc_decode_writeargs(struct svc_rqst *rqstp, __be32 *p,
 }
 
 int
-nfs3svc_decode_createargs(struct svc_rqst *rqstp, __be32 *p,
-					struct nfsd3_createargs *args)
+nfs3svc_decode_createargs(struct svc_rqst *rqstp, __be32 *p)
 {
+	struct nfsd3_createargs *args = rqstp->rq_argp;
+
 	if (!(p = decode_fh(p, &args->fh))
 	 || !(p = decode_filename(p, &args->name, &args->len)))
 		return 0;
@@ -435,10 +441,12 @@ nfs3svc_decode_createargs(struct svc_rqst *rqstp, __be32 *p,
 
 	return xdr_argsize_check(rqstp, p);
 }
+
 int
-nfs3svc_decode_mkdirargs(struct svc_rqst *rqstp, __be32 *p,
-					struct nfsd3_createargs *args)
+nfs3svc_decode_mkdirargs(struct svc_rqst *rqstp, __be32 *p)
 {
+	struct nfsd3_createargs *args = rqstp->rq_argp;
+
 	if (!(p = decode_fh(p, &args->fh)) ||
 	    !(p = decode_filename(p, &args->name, &args->len)))
 		return 0;
@@ -448,9 +456,9 @@ nfs3svc_decode_mkdirargs(struct svc_rqst *rqstp, __be32 *p,
 }
 
 int
-nfs3svc_decode_symlinkargs(struct svc_rqst *rqstp, __be32 *p,
-					struct nfsd3_symlinkargs *args)
+nfs3svc_decode_symlinkargs(struct svc_rqst *rqstp, __be32 *p)
 {
+	struct nfsd3_symlinkargs *args = rqstp->rq_argp;
 	unsigned int len, avail;
 	char *old, *new;
 	struct kvec *vec;
@@ -500,9 +508,10 @@ nfs3svc_decode_symlinkargs(struct svc_rqst *rqstp, __be32 *p,
 }
 
 int
-nfs3svc_decode_mknodargs(struct svc_rqst *rqstp, __be32 *p,
-					struct nfsd3_mknodargs *args)
+nfs3svc_decode_mknodargs(struct svc_rqst *rqstp, __be32 *p)
 {
+	struct nfsd3_mknodargs *args = rqstp->rq_argp;
+
 	if (!(p = decode_fh(p, &args->fh))
 	 || !(p = decode_filename(p, &args->name, &args->len)))
 		return 0;
@@ -522,9 +531,10 @@ nfs3svc_decode_mknodargs(struct svc_rqst *rqstp, __be32 *p,
 }
 
 int
-nfs3svc_decode_renameargs(struct svc_rqst *rqstp, __be32 *p,
-					struct nfsd3_renameargs *args)
+nfs3svc_decode_renameargs(struct svc_rqst *rqstp, __be32 *p)
 {
+	struct nfsd3_renameargs *args = rqstp->rq_argp;
+
 	if (!(p = decode_fh(p, &args->ffh))
 	 || !(p = decode_filename(p, &args->fname, &args->flen))
 	 || !(p = decode_fh(p, &args->tfh))
@@ -535,9 +545,10 @@ nfs3svc_decode_renameargs(struct svc_rqst *rqstp, __be32 *p,
 }
 
 int
-nfs3svc_decode_readlinkargs(struct svc_rqst *rqstp, __be32 *p,
-					struct nfsd3_readlinkargs *args)
+nfs3svc_decode_readlinkargs(struct svc_rqst *rqstp, __be32 *p)
 {
+	struct nfsd3_readlinkargs *args = rqstp->rq_argp;
+
 	p = decode_fh(p, &args->fh);
 	if (!p)
 		return 0;
@@ -547,9 +558,10 @@ nfs3svc_decode_readlinkargs(struct svc_rqst *rqstp, __be32 *p,
 }
 
 int
-nfs3svc_decode_linkargs(struct svc_rqst *rqstp, __be32 *p,
-					struct nfsd3_linkargs *args)
+nfs3svc_decode_linkargs(struct svc_rqst *rqstp, __be32 *p)
 {
+	struct nfsd3_linkargs *args = rqstp->rq_argp;
+
 	if (!(p = decode_fh(p, &args->ffh))
 	 || !(p = decode_fh(p, &args->tfh))
 	 || !(p = decode_filename(p, &args->tname, &args->tlen)))
@@ -559,9 +571,9 @@ nfs3svc_decode_linkargs(struct svc_rqst *rqstp, __be32 *p,
 }
 
 int
-nfs3svc_decode_readdirargs(struct svc_rqst *rqstp, __be32 *p,
-					struct nfsd3_readdirargs *args)
+nfs3svc_decode_readdirargs(struct svc_rqst *rqstp, __be32 *p)
 {
+	struct nfsd3_readdirargs *args = rqstp->rq_argp;
 	p = decode_fh(p, &args->fh);
 	if (!p)
 		return 0;
@@ -576,9 +588,9 @@ nfs3svc_decode_readdirargs(struct svc_rqst *rqstp, __be32 *p,
 }
 
 int
-nfs3svc_decode_readdirplusargs(struct svc_rqst *rqstp, __be32 *p,
-					struct nfsd3_readdirargs *args)
+nfs3svc_decode_readdirplusargs(struct svc_rqst *rqstp, __be32 *p)
 {
+	struct nfsd3_readdirargs *args = rqstp->rq_argp;
 	int len;
 	u32 max_blocksize = svc_max_payload(rqstp);
 
@@ -602,9 +614,9 @@ nfs3svc_decode_readdirplusargs(struct svc_rqst *rqstp, __be32 *p,
 }
 
 int
-nfs3svc_decode_commitargs(struct svc_rqst *rqstp, __be32 *p,
-					struct nfsd3_commitargs *args)
+nfs3svc_decode_commitargs(struct svc_rqst *rqstp, __be32 *p)
 {
+	struct nfsd3_commitargs *args = rqstp->rq_argp;
 	p = decode_fh(p, &args->fh);
 	if (!p)
 		return 0;
@@ -622,16 +634,17 @@ nfs3svc_decode_commitargs(struct svc_rqst *rqstp, __be32 *p,
  * will work properly.
  */
 int
-nfs3svc_encode_voidres(struct svc_rqst *rqstp, __be32 *p, void *dummy)
+nfs3svc_encode_voidres(struct svc_rqst *rqstp, __be32 *p)
 {
 	return xdr_ressize_check(rqstp, p);
 }
 
 /* GETATTR */
 int
-nfs3svc_encode_attrstat(struct svc_rqst *rqstp, __be32 *p,
-					struct nfsd3_attrstat *resp)
+nfs3svc_encode_attrstat(struct svc_rqst *rqstp, __be32 *p)
 {
+	struct nfsd3_attrstat *resp = rqstp->rq_resp;
+
 	if (resp->status == 0) {
 		lease_get_mtime(d_inode(resp->fh.fh_dentry),
 				&resp->stat.mtime);
@@ -642,18 +655,20 @@ nfs3svc_encode_attrstat(struct svc_rqst *rqstp, __be32 *p,
 
 /* SETATTR, REMOVE, RMDIR */
 int
-nfs3svc_encode_wccstat(struct svc_rqst *rqstp, __be32 *p,
-					struct nfsd3_attrstat *resp)
+nfs3svc_encode_wccstat(struct svc_rqst *rqstp, __be32 *p)
 {
+	struct nfsd3_attrstat *resp = rqstp->rq_resp;
+
 	p = encode_wcc_data(rqstp, p, &resp->fh);
 	return xdr_ressize_check(rqstp, p);
 }
 
 /* LOOKUP */
 int
-nfs3svc_encode_diropres(struct svc_rqst *rqstp, __be32 *p,
-					struct nfsd3_diropres *resp)
+nfs3svc_encode_diropres(struct svc_rqst *rqstp, __be32 *p)
 {
+	struct nfsd3_diropres *resp = rqstp->rq_resp;
+
 	if (resp->status == 0) {
 		p = encode_fh(p, &resp->fh);
 		p = encode_post_op_attr(rqstp, p, &resp->fh);
@@ -664,9 +679,10 @@ nfs3svc_encode_diropres(struct svc_rqst *rqstp, __be32 *p,
 
 /* ACCESS */
 int
-nfs3svc_encode_accessres(struct svc_rqst *rqstp, __be32 *p,
-					struct nfsd3_accessres *resp)
+nfs3svc_encode_accessres(struct svc_rqst *rqstp, __be32 *p)
 {
+	struct nfsd3_accessres *resp = rqstp->rq_resp;
+
 	p = encode_post_op_attr(rqstp, p, &resp->fh);
 	if (resp->status == 0)
 		*p++ = htonl(resp->access);
@@ -675,9 +691,10 @@ nfs3svc_encode_accessres(struct svc_rqst *rqstp, __be32 *p,
 
 /* READLINK */
 int
-nfs3svc_encode_readlinkres(struct svc_rqst *rqstp, __be32 *p,
-					struct nfsd3_readlinkres *resp)
+nfs3svc_encode_readlinkres(struct svc_rqst *rqstp, __be32 *p)
 {
+	struct nfsd3_readlinkres *resp = rqstp->rq_resp;
+
 	p = encode_post_op_attr(rqstp, p, &resp->fh);
 	if (resp->status == 0) {
 		*p++ = htonl(resp->len);
@@ -696,9 +713,10 @@ nfs3svc_encode_readlinkres(struct svc_rqst *rqstp, __be32 *p,
 
 /* READ */
 int
-nfs3svc_encode_readres(struct svc_rqst *rqstp, __be32 *p,
-					struct nfsd3_readres *resp)
+nfs3svc_encode_readres(struct svc_rqst *rqstp, __be32 *p)
 {
+	struct nfsd3_readres *resp = rqstp->rq_resp;
+
 	p = encode_post_op_attr(rqstp, p, &resp->fh);
 	if (resp->status == 0) {
 		*p++ = htonl(resp->count);
@@ -720,9 +738,9 @@ nfs3svc_encode_readres(struct svc_rqst *rqstp, __be32 *p,
 
 /* WRITE */
 int
-nfs3svc_encode_writeres(struct svc_rqst *rqstp, __be32 *p,
-					struct nfsd3_writeres *resp)
+nfs3svc_encode_writeres(struct svc_rqst *rqstp, __be32 *p)
 {
+	struct nfsd3_writeres *resp = rqstp->rq_resp;
 	struct nfsd_net *nn = net_generic(SVC_NET(rqstp), nfsd_net_id);
 
 	p = encode_wcc_data(rqstp, p, &resp->fh);
@@ -737,9 +755,10 @@ nfs3svc_encode_writeres(struct svc_rqst *rqstp, __be32 *p,
 
 /* CREATE, MKDIR, SYMLINK, MKNOD */
 int
-nfs3svc_encode_createres(struct svc_rqst *rqstp, __be32 *p,
-					struct nfsd3_diropres *resp)
+nfs3svc_encode_createres(struct svc_rqst *rqstp, __be32 *p)
 {
+	struct nfsd3_diropres *resp = rqstp->rq_resp;
+
 	if (resp->status == 0) {
 		*p++ = xdr_one;
 		p = encode_fh(p, &resp->fh);
@@ -751,9 +770,10 @@ nfs3svc_encode_createres(struct svc_rqst *rqstp, __be32 *p,
 
 /* RENAME */
 int
-nfs3svc_encode_renameres(struct svc_rqst *rqstp, __be32 *p,
-					struct nfsd3_renameres *resp)
+nfs3svc_encode_renameres(struct svc_rqst *rqstp, __be32 *p)
 {
+	struct nfsd3_renameres *resp = rqstp->rq_resp;
+
 	p = encode_wcc_data(rqstp, p, &resp->ffh);
 	p = encode_wcc_data(rqstp, p, &resp->tfh);
 	return xdr_ressize_check(rqstp, p);
@@ -761,9 +781,10 @@ nfs3svc_encode_renameres(struct svc_rqst *rqstp, __be32 *p,
 
 /* LINK */
 int
-nfs3svc_encode_linkres(struct svc_rqst *rqstp, __be32 *p,
-					struct nfsd3_linkres *resp)
+nfs3svc_encode_linkres(struct svc_rqst *rqstp, __be32 *p)
 {
+	struct nfsd3_linkres *resp = rqstp->rq_resp;
+
 	p = encode_post_op_attr(rqstp, p, &resp->fh);
 	p = encode_wcc_data(rqstp, p, &resp->tfh);
 	return xdr_ressize_check(rqstp, p);
@@ -771,9 +792,10 @@ nfs3svc_encode_linkres(struct svc_rqst *rqstp, __be32 *p,
 
 /* READDIR */
 int
-nfs3svc_encode_readdirres(struct svc_rqst *rqstp, __be32 *p,
-					struct nfsd3_readdirres *resp)
+nfs3svc_encode_readdirres(struct svc_rqst *rqstp, __be32 *p)
 {
+	struct nfsd3_readdirres *resp = rqstp->rq_resp;
+
 	p = encode_post_op_attr(rqstp, p, &resp->fh);
 
 	if (resp->status == 0) {
@@ -1021,9 +1043,9 @@ nfs3svc_encode_entry_plus(void *cd, const char *name,
 
 /* FSSTAT */
 int
-nfs3svc_encode_fsstatres(struct svc_rqst *rqstp, __be32 *p,
-					struct nfsd3_fsstatres *resp)
+nfs3svc_encode_fsstatres(struct svc_rqst *rqstp, __be32 *p)
 {
+	struct nfsd3_fsstatres *resp = rqstp->rq_resp;
 	struct kstatfs	*s = &resp->stats;
 	u64		bs = s->f_bsize;
 
@@ -1043,9 +1065,10 @@ nfs3svc_encode_fsstatres(struct svc_rqst *rqstp, __be32 *p,
 
 /* FSINFO */
 int
-nfs3svc_encode_fsinfores(struct svc_rqst *rqstp, __be32 *p,
-					struct nfsd3_fsinfores *resp)
+nfs3svc_encode_fsinfores(struct svc_rqst *rqstp, __be32 *p)
 {
+	struct nfsd3_fsinfores *resp = rqstp->rq_resp;
+
 	*p++ = xdr_zero;	/* no post_op_attr */
 
 	if (resp->status == 0) {
@@ -1067,9 +1090,10 @@ nfs3svc_encode_fsinfores(struct svc_rqst *rqstp, __be32 *p,
 
 /* PATHCONF */
 int
-nfs3svc_encode_pathconfres(struct svc_rqst *rqstp, __be32 *p,
-					struct nfsd3_pathconfres *resp)
+nfs3svc_encode_pathconfres(struct svc_rqst *rqstp, __be32 *p)
 {
+	struct nfsd3_pathconfres *resp = rqstp->rq_resp;
+
 	*p++ = xdr_zero;	/* no post_op_attr */
 
 	if (resp->status == 0) {
@@ -1086,9 +1110,9 @@ nfs3svc_encode_pathconfres(struct svc_rqst *rqstp, __be32 *p,
 
 /* COMMIT */
 int
-nfs3svc_encode_commitres(struct svc_rqst *rqstp, __be32 *p,
-					struct nfsd3_commitres *resp)
+nfs3svc_encode_commitres(struct svc_rqst *rqstp, __be32 *p)
 {
+	struct nfsd3_commitres *resp = rqstp->rq_resp;
 	struct nfsd_net *nn = net_generic(SVC_NET(rqstp), nfsd_net_id);
 
 	p = encode_wcc_data(rqstp, p, &resp->fh);
@@ -1103,19 +1127,19 @@ nfs3svc_encode_commitres(struct svc_rqst *rqstp, __be32 *p,
 /*
  * XDR release functions
  */
-int
-nfs3svc_release_fhandle(struct svc_rqst *rqstp, __be32 *p,
-					struct nfsd3_attrstat *resp)
+void
+nfs3svc_release_fhandle(struct svc_rqst *rqstp)
 {
+	struct nfsd3_attrstat *resp = rqstp->rq_resp;
+
 	fh_put(&resp->fh);
-	return 1;
 }
 
-int
-nfs3svc_release_fhandle2(struct svc_rqst *rqstp, __be32 *p,
-					struct nfsd3_fhandle_pair *resp)
+void
+nfs3svc_release_fhandle2(struct svc_rqst *rqstp)
 {
+	struct nfsd3_fhandle_pair *resp = rqstp->rq_resp;
+
 	fh_put(&resp->fh1);
 	fh_put(&resp->fh2);
-	return 1;
 }
diff --git a/fs/nfsd/nfs4callback.c b/fs/nfsd/nfs4callback.c
index 0274db6e65d0..49b0a9e7ff18 100644
--- a/fs/nfsd/nfs4callback.c
+++ b/fs/nfsd/nfs4callback.c
@@ -468,7 +468,7 @@ static int decode_cb_sequence4res(struct xdr_stream *xdr,
  * NB: Without this zero space reservation, callbacks over krb5p fail
  */
 static void nfs4_xdr_enc_cb_null(struct rpc_rqst *req, struct xdr_stream *xdr,
-				 void *__unused)
+				 const void *__unused)
 {
 	xdr_reserve_space(xdr, 0);
 }
@@ -477,8 +477,9 @@ static void nfs4_xdr_enc_cb_null(struct rpc_rqst *req, struct xdr_stream *xdr,
  * 20.2. Operation 4: CB_RECALL - Recall a Delegation
  */
 static void nfs4_xdr_enc_cb_recall(struct rpc_rqst *req, struct xdr_stream *xdr,
-				   const struct nfsd4_callback *cb)
+				   const void *data)
 {
+	const struct nfsd4_callback *cb = data;
 	const struct nfs4_delegation *dp = cb_to_delegation(cb);
 	struct nfs4_cb_compound_hdr hdr = {
 		.ident = cb->cb_clp->cl_cb_ident,
@@ -512,8 +513,9 @@ static int nfs4_xdr_dec_cb_null(struct rpc_rqst *req, struct xdr_stream *xdr,
  */
 static int nfs4_xdr_dec_cb_recall(struct rpc_rqst *rqstp,
 				  struct xdr_stream *xdr,
-				  struct nfsd4_callback *cb)
+				  void *data)
 {
+	struct nfsd4_callback *cb = data;
 	struct nfs4_cb_compound_hdr hdr;
 	int status;
 
@@ -585,8 +587,9 @@ static void encode_cb_layout4args(struct xdr_stream *xdr,
 
 static void nfs4_xdr_enc_cb_layout(struct rpc_rqst *req,
 				   struct xdr_stream *xdr,
-				   const struct nfsd4_callback *cb)
+				   const void *data)
 {
+	const struct nfsd4_callback *cb = data;
 	const struct nfs4_layout_stateid *ls =
 		container_of(cb, struct nfs4_layout_stateid, ls_recall);
 	struct nfs4_cb_compound_hdr hdr = {
@@ -602,8 +605,9 @@ static void nfs4_xdr_enc_cb_layout(struct rpc_rqst *req,
 
 static int nfs4_xdr_dec_cb_layout(struct rpc_rqst *rqstp,
 				  struct xdr_stream *xdr,
-				  struct nfsd4_callback *cb)
+				  void *data)
 {
+	struct nfsd4_callback *cb = data;
 	struct nfs4_cb_compound_hdr hdr;
 	int status;
 
@@ -631,8 +635,9 @@ static void encode_stateowner(struct xdr_stream *xdr, struct nfs4_stateowner *so
 
 static void nfs4_xdr_enc_cb_notify_lock(struct rpc_rqst *req,
 					struct xdr_stream *xdr,
-					const struct nfsd4_callback *cb)
+					const void *data)
 {
+	const struct nfsd4_callback *cb = data;
 	const struct nfsd4_blocked_lock *nbl =
 		container_of(cb, struct nfsd4_blocked_lock, nbl_cb);
 	struct nfs4_lockowner *lo = (struct nfs4_lockowner *)nbl->nbl_lock.fl_owner;
@@ -659,8 +664,9 @@ static void nfs4_xdr_enc_cb_notify_lock(struct rpc_rqst *req,
 
 static int nfs4_xdr_dec_cb_notify_lock(struct rpc_rqst *rqstp,
 					struct xdr_stream *xdr,
-					struct nfsd4_callback *cb)
+					void *data)
 {
+	struct nfsd4_callback *cb = data;
 	struct nfs4_cb_compound_hdr hdr;
 	int status;
 
@@ -682,15 +688,15 @@ static int nfs4_xdr_dec_cb_notify_lock(struct rpc_rqst *rqstp,
 #define PROC(proc, call, argtype, restype)				\
 [NFSPROC4_CLNT_##proc] = {						\
 	.p_proc    = NFSPROC4_CB_##call,				\
-	.p_encode  = (kxdreproc_t)nfs4_xdr_enc_##argtype,		\
-	.p_decode  = (kxdrdproc_t)nfs4_xdr_dec_##restype,		\
+	.p_encode  = nfs4_xdr_enc_##argtype,		\
+	.p_decode  = nfs4_xdr_dec_##restype,				\
 	.p_arglen  = NFS4_enc_##argtype##_sz,				\
 	.p_replen  = NFS4_dec_##restype##_sz,				\
 	.p_statidx = NFSPROC4_CB_##call,				\
 	.p_name    = #proc,						\
 }
 
-static struct rpc_procinfo nfs4_cb_procedures[] = {
+static const struct rpc_procinfo nfs4_cb_procedures[] = {
 	PROC(CB_NULL,	NULL,		cb_null,	cb_null),
 	PROC(CB_RECALL,	COMPOUND,	cb_recall,	cb_recall),
 #ifdef CONFIG_NFSD_PNFS
@@ -699,7 +705,8 @@ static struct rpc_procinfo nfs4_cb_procedures[] = {
 	PROC(CB_NOTIFY_LOCK,	COMPOUND,	cb_notify_lock,	cb_notify_lock),
 };
 
-static struct rpc_version nfs_cb_version4 = {
+static unsigned int nfs4_cb_counts[ARRAY_SIZE(nfs4_cb_procedures)];
+static const struct rpc_version nfs_cb_version4 = {
 /*
  * Note on the callback rpc program version number: despite language in rfc
  * 5661 section 18.36.3 requiring servers to use 4 in this field, the
@@ -709,11 +716,12 @@ static struct rpc_version nfs_cb_version4 = {
  */
 	.number			= 1,
 	.nrprocs		= ARRAY_SIZE(nfs4_cb_procedures),
-	.procs			= nfs4_cb_procedures
+	.procs			= nfs4_cb_procedures,
+	.counts			= nfs4_cb_counts,
 };
 
-static const struct rpc_version *nfs_cb_version[] = {
-	&nfs_cb_version4,
+static const struct rpc_version *nfs_cb_version[2] = {
+	[1] = &nfs_cb_version4,
 };
 
 static const struct rpc_program cb_program;
@@ -787,7 +795,7 @@ static int setup_callback_client(struct nfs4_client *clp, struct nfs4_cb_conn *c
 		.saddress	= (struct sockaddr *) &conn->cb_saddr,
 		.timeout	= &timeparms,
 		.program	= &cb_program,
-		.version	= 0,
+		.version	= 1,
 		.flags		= (RPC_CLNT_CREATE_NOPING | RPC_CLNT_CREATE_QUIET),
 	};
 	struct rpc_clnt *client;
diff --git a/fs/nfsd/nfs4proc.c b/fs/nfsd/nfs4proc.c
index dadb3bf305b2..d27e75ad25e3 100644
--- a/fs/nfsd/nfs4proc.c
+++ b/fs/nfsd/nfs4proc.c
@@ -344,8 +344,9 @@ copy_clientid(clientid_t *clid, struct nfsd4_session *session)
 
 static __be32
 nfsd4_open(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate,
-	   struct nfsd4_open *open)
+	   union nfsd4_op_u *u)
 {
+	struct nfsd4_open *open = &u->open;
 	__be32 status;
 	struct svc_fh *resfh = NULL;
 	struct net *net = SVC_NET(rqstp);
@@ -467,14 +468,14 @@ out:
  */
 static __be32 nfsd4_open_omfg(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, struct nfsd4_op *op)
 {
-	struct nfsd4_open *open = (struct nfsd4_open *)&op->u;
+	struct nfsd4_open *open = &op->u.open;
 
 	if (!seqid_mutating_err(ntohl(op->status)))
 		return op->status;
 	if (nfsd4_has_session(cstate))
 		return op->status;
 	open->op_xdr_error = op->status;
-	return nfsd4_open(rqstp, cstate, open);
+	return nfsd4_open(rqstp, cstate, &op->u);
 }
 
 /*
@@ -482,19 +483,21 @@ static __be32 nfsd4_open_omfg(struct svc_rqst *rqstp, struct nfsd4_compound_stat
  */
 static __be32
 nfsd4_getfh(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate,
-	    struct svc_fh **getfh)
+	    union nfsd4_op_u *u)
 {
 	if (!cstate->current_fh.fh_dentry)
 		return nfserr_nofilehandle;
 
-	*getfh = &cstate->current_fh;
+	u->getfh = &cstate->current_fh;
 	return nfs_ok;
 }
 
 static __be32
 nfsd4_putfh(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate,
-	    struct nfsd4_putfh *putfh)
+	    union nfsd4_op_u *u)
 {
+	struct nfsd4_putfh *putfh = &u->putfh;
+
 	fh_put(&cstate->current_fh);
 	cstate->current_fh.fh_handle.fh_size = putfh->pf_fhlen;
 	memcpy(&cstate->current_fh.fh_handle.fh_base, putfh->pf_fhval,
@@ -504,7 +507,7 @@ nfsd4_putfh(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate,
 
 static __be32
 nfsd4_putrootfh(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate,
-		void *arg)
+		union nfsd4_op_u *u)
 {
 	__be32 status;
 
@@ -515,7 +518,7 @@ nfsd4_putrootfh(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate,
 
 static __be32
 nfsd4_restorefh(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate,
-		void *arg)
+		union nfsd4_op_u *u)
 {
 	if (!cstate->save_fh.fh_dentry)
 		return nfserr_restorefh;
@@ -530,7 +533,7 @@ nfsd4_restorefh(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate,
 
 static __be32
 nfsd4_savefh(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate,
-	     void *arg)
+	     union nfsd4_op_u *u)
 {
 	if (!cstate->current_fh.fh_dentry)
 		return nfserr_nofilehandle;
@@ -548,8 +551,10 @@ nfsd4_savefh(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate,
  */
 static __be32
 nfsd4_access(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate,
-	     struct nfsd4_access *access)
+	     union nfsd4_op_u *u)
 {
+	struct nfsd4_access *access = &u->access;
+
 	if (access->ac_req_access & ~NFS3_ACCESS_FULL)
 		return nfserr_inval;
 
@@ -574,8 +579,10 @@ static void gen_boot_verifier(nfs4_verifier *verifier, struct net *net)
 
 static __be32
 nfsd4_commit(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate,
-	     struct nfsd4_commit *commit)
+	     union nfsd4_op_u *u)
 {
+	struct nfsd4_commit *commit = &u->commit;
+
 	gen_boot_verifier(&commit->co_verf, SVC_NET(rqstp));
 	return nfsd_commit(rqstp, &cstate->current_fh, commit->co_offset,
 			     commit->co_count);
@@ -583,8 +590,9 @@ nfsd4_commit(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate,
 
 static __be32
 nfsd4_create(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate,
-	     struct nfsd4_create *create)
+	     union nfsd4_op_u *u)
 {
+	struct nfsd4_create *create = &u->create;
 	struct svc_fh resfh;
 	__be32 status;
 	dev_t rdev;
@@ -670,8 +678,9 @@ out:
 
 static __be32
 nfsd4_getattr(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate,
-	      struct nfsd4_getattr *getattr)
+	      union nfsd4_op_u *u)
 {
+	struct nfsd4_getattr *getattr = &u->getattr;
 	__be32 status;
 
 	status = fh_verify(rqstp, &cstate->current_fh, 0, NFSD_MAY_NOP);
@@ -691,8 +700,9 @@ nfsd4_getattr(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate,
 
 static __be32
 nfsd4_link(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate,
-	   struct nfsd4_link *link)
+	   union nfsd4_op_u *u)
 {
+	struct nfsd4_link *link = &u->link;
 	__be32 status = nfserr_nofilehandle;
 
 	if (!cstate->save_fh.fh_dentry)
@@ -723,24 +733,25 @@ static __be32 nfsd4_do_lookupp(struct svc_rqst *rqstp, struct svc_fh *fh)
 
 static __be32
 nfsd4_lookupp(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate,
-	      void *arg)
+	      union nfsd4_op_u *u)
 {
 	return nfsd4_do_lookupp(rqstp, &cstate->current_fh);
 }
 
 static __be32
 nfsd4_lookup(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate,
-	     struct nfsd4_lookup *lookup)
+	     union nfsd4_op_u *u)
 {
 	return nfsd_lookup(rqstp, &cstate->current_fh,
-			   lookup->lo_name, lookup->lo_len,
+			   u->lookup.lo_name, u->lookup.lo_len,
 			   &cstate->current_fh);
 }
 
 static __be32
 nfsd4_read(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate,
-	   struct nfsd4_read *read)
+	   union nfsd4_op_u *u)
 {
+	struct nfsd4_read *read = &u->read;
 	__be32 status;
 
 	read->rd_filp = NULL;
@@ -775,8 +786,9 @@ out:
 
 static __be32
 nfsd4_readdir(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate,
-	      struct nfsd4_readdir *readdir)
+	      union nfsd4_op_u *u)
 {
+	struct nfsd4_readdir *readdir = &u->readdir;
 	u64 cookie = readdir->rd_cookie;
 	static const nfs4_verifier zeroverf;
 
@@ -800,17 +812,18 @@ nfsd4_readdir(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate,
 
 static __be32
 nfsd4_readlink(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate,
-	       struct nfsd4_readlink *readlink)
+	       union nfsd4_op_u *u)
 {
-	readlink->rl_rqstp = rqstp;
-	readlink->rl_fhp = &cstate->current_fh;
+	u->readlink.rl_rqstp = rqstp;
+	u->readlink.rl_fhp = &cstate->current_fh;
 	return nfs_ok;
 }
 
 static __be32
 nfsd4_remove(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate,
-	     struct nfsd4_remove *remove)
+	     union nfsd4_op_u *u)
 {
+	struct nfsd4_remove *remove = &u->remove;
 	__be32 status;
 
 	if (opens_in_grace(SVC_NET(rqstp)))
@@ -826,8 +839,9 @@ nfsd4_remove(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate,
 
 static __be32
 nfsd4_rename(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate,
-	     struct nfsd4_rename *rename)
+	     union nfsd4_op_u *u)
 {
+	struct nfsd4_rename *rename = &u->rename;
 	__be32 status = nfserr_nofilehandle;
 
 	if (!cstate->save_fh.fh_dentry)
@@ -847,8 +861,9 @@ nfsd4_rename(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate,
 
 static __be32
 nfsd4_secinfo(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate,
-	      struct nfsd4_secinfo *secinfo)
+	      union nfsd4_op_u *u)
 {
+	struct nfsd4_secinfo *secinfo = &u->secinfo;
 	struct svc_export *exp;
 	struct dentry *dentry;
 	__be32 err;
@@ -876,11 +891,11 @@ nfsd4_secinfo(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate,
 
 static __be32
 nfsd4_secinfo_no_name(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate,
-	      struct nfsd4_secinfo_no_name *sin)
+		union nfsd4_op_u *u)
 {
 	__be32 err;
 
-	switch (sin->sin_style) {
+	switch (u->secinfo_no_name.sin_style) {
 	case NFS4_SECINFO_STYLE4_CURRENT_FH:
 		break;
 	case NFS4_SECINFO_STYLE4_PARENT:
@@ -892,15 +907,16 @@ nfsd4_secinfo_no_name(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstat
 		return nfserr_inval;
 	}
 
-	sin->sin_exp = exp_get(cstate->current_fh.fh_export);
+	u->secinfo_no_name.sin_exp = exp_get(cstate->current_fh.fh_export);
 	fh_put(&cstate->current_fh);
 	return nfs_ok;
 }
 
 static __be32
 nfsd4_setattr(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate,
-	      struct nfsd4_setattr *setattr)
+	      union nfsd4_op_u *u)
 {
+	struct nfsd4_setattr *setattr = &u->setattr;
 	__be32 status = nfs_ok;
 	int err;
 
@@ -960,8 +976,9 @@ static int fill_in_write_vector(struct kvec *vec, struct nfsd4_write *write)
 
 static __be32
 nfsd4_write(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate,
-	    struct nfsd4_write *write)
+	    union nfsd4_op_u *u)
 {
+	struct nfsd4_write *write = &u->write;
 	stateid_t *stateid = &write->wr_stateid;
 	struct file *filp = NULL;
 	__be32 status = nfs_ok;
@@ -1034,8 +1051,9 @@ out_put_src:
 
 static __be32
 nfsd4_clone(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate,
-		struct nfsd4_clone *clone)
+		union nfsd4_op_u *u)
 {
+	struct nfsd4_clone *clone = &u->clone;
 	struct file *src, *dst;
 	__be32 status;
 
@@ -1055,8 +1073,9 @@ out:
 
 static __be32
 nfsd4_copy(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate,
-		struct nfsd4_copy *copy)
+		union nfsd4_op_u *u)
 {
+	struct nfsd4_copy *copy = &u->copy;
 	struct file *src, *dst;
 	__be32 status;
 	ssize_t bytes;
@@ -1111,23 +1130,24 @@ nfsd4_fallocate(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate,
 
 static __be32
 nfsd4_allocate(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate,
-	       struct nfsd4_fallocate *fallocate)
+	       union nfsd4_op_u *u)
 {
-	return nfsd4_fallocate(rqstp, cstate, fallocate, 0);
+	return nfsd4_fallocate(rqstp, cstate, &u->allocate, 0);
 }
 
 static __be32
 nfsd4_deallocate(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate,
-		 struct nfsd4_fallocate *fallocate)
+		 union nfsd4_op_u *u)
 {
-	return nfsd4_fallocate(rqstp, cstate, fallocate,
+	return nfsd4_fallocate(rqstp, cstate, &u->deallocate,
 			       FALLOC_FL_PUNCH_HOLE | FALLOC_FL_KEEP_SIZE);
 }
 
 static __be32
 nfsd4_seek(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate,
-		struct nfsd4_seek *seek)
+	   union nfsd4_op_u *u)
 {
+	struct nfsd4_seek *seek = &u->seek;
 	int whence;
 	__be32 status;
 	struct file *file;
@@ -1232,21 +1252,21 @@ out_kfree:
 
 static __be32
 nfsd4_nverify(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate,
-	      struct nfsd4_verify *verify)
+	      union nfsd4_op_u *u)
 {
 	__be32 status;
 
-	status = _nfsd4_verify(rqstp, cstate, verify);
+	status = _nfsd4_verify(rqstp, cstate, &u->verify);
 	return status == nfserr_not_same ? nfs_ok : status;
 }
 
 static __be32
 nfsd4_verify(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate,
-	     struct nfsd4_verify *verify)
+	     union nfsd4_op_u *u)
 {
 	__be32 status;
 
-	status = _nfsd4_verify(rqstp, cstate, verify);
+	status = _nfsd4_verify(rqstp, cstate, &u->nverify);
 	return status == nfserr_same ? nfs_ok : status;
 }
 
@@ -1271,9 +1291,9 @@ nfsd4_layout_verify(struct svc_export *exp, unsigned int layout_type)
 
 static __be32
 nfsd4_getdeviceinfo(struct svc_rqst *rqstp,
-		struct nfsd4_compound_state *cstate,
-		struct nfsd4_getdeviceinfo *gdp)
+		struct nfsd4_compound_state *cstate, union nfsd4_op_u *u)
 {
+	struct nfsd4_getdeviceinfo *gdp = &u->getdeviceinfo;
 	const struct nfsd4_layout_ops *ops;
 	struct nfsd4_deviceid_map *map;
 	struct svc_export *exp;
@@ -1317,9 +1337,9 @@ out:
 
 static __be32
 nfsd4_layoutget(struct svc_rqst *rqstp,
-		struct nfsd4_compound_state *cstate,
-		struct nfsd4_layoutget *lgp)
+		struct nfsd4_compound_state *cstate, union nfsd4_op_u *u)
 {
+	struct nfsd4_layoutget *lgp = &u->layoutget;
 	struct svc_fh *current_fh = &cstate->current_fh;
 	const struct nfsd4_layout_ops *ops;
 	struct nfs4_layout_stateid *ls;
@@ -1397,9 +1417,9 @@ out:
 
 static __be32
 nfsd4_layoutcommit(struct svc_rqst *rqstp,
-		struct nfsd4_compound_state *cstate,
-		struct nfsd4_layoutcommit *lcp)
+		struct nfsd4_compound_state *cstate, union nfsd4_op_u *u)
 {
+	struct nfsd4_layoutcommit *lcp = &u->layoutcommit;
 	const struct nfsd4_layout_seg *seg = &lcp->lc_seg;
 	struct svc_fh *current_fh = &cstate->current_fh;
 	const struct nfsd4_layout_ops *ops;
@@ -1461,9 +1481,9 @@ out:
 
 static __be32
 nfsd4_layoutreturn(struct svc_rqst *rqstp,
-		struct nfsd4_compound_state *cstate,
-		struct nfsd4_layoutreturn *lrp)
+		struct nfsd4_compound_state *cstate, union nfsd4_op_u *u)
 {
+	struct nfsd4_layoutreturn *lrp = &u->layoutreturn;
 	struct svc_fh *current_fh = &cstate->current_fh;
 	__be32 nfserr;
 
@@ -1510,7 +1530,7 @@ out:
  * NULL call.
  */
 static __be32
-nfsd4_proc_null(struct svc_rqst *rqstp, void *argp, void *resp)
+nfsd4_proc_null(struct svc_rqst *rqstp)
 {
 	return nfs_ok;
 }
@@ -1521,12 +1541,6 @@ static inline void nfsd4_increment_op_stats(u32 opnum)
 		nfsdstats.nfs4_opcount[opnum]++;
 }
 
-typedef __be32(*nfsd4op_func)(struct svc_rqst *, struct nfsd4_compound_state *,
-			      void *);
-typedef u32(*nfsd4op_rsize)(struct svc_rqst *, struct nfsd4_op *op);
-typedef void(*stateid_setter)(struct nfsd4_compound_state *, void *);
-typedef void(*stateid_getter)(struct nfsd4_compound_state *, void *);
-
 enum nfsd4_op_flags {
 	ALLOWED_WITHOUT_FH = 1 << 0,	/* No current filehandle required */
 	ALLOWED_ON_ABSENT_FS = 1 << 1,	/* ops processed on absent fs */
@@ -1558,16 +1572,19 @@ enum nfsd4_op_flags {
 };
 
 struct nfsd4_operation {
-	nfsd4op_func op_func;
+	__be32 (*op_func)(struct svc_rqst *, struct nfsd4_compound_state *,
+			union nfsd4_op_u *);
 	u32 op_flags;
 	char *op_name;
 	/* Try to get response size before operation */
-	nfsd4op_rsize op_rsize_bop;
-	stateid_getter op_get_currentstateid;
-	stateid_setter op_set_currentstateid;
+	u32 (*op_rsize_bop)(struct svc_rqst *, struct nfsd4_op *);
+	void (*op_get_currentstateid)(struct nfsd4_compound_state *,
+			union nfsd4_op_u *);
+	void (*op_set_currentstateid)(struct nfsd4_compound_state *,
+			union nfsd4_op_u *);
 };
 
-static struct nfsd4_operation nfsd4_ops[];
+static const struct nfsd4_operation nfsd4_ops[];
 
 static const char *nfsd4_op_name(unsigned opnum);
 
@@ -1604,7 +1621,7 @@ static __be32 nfs41_check_op_ordering(struct nfsd4_compoundargs *args)
 	return nfs_ok;
 }
 
-static inline struct nfsd4_operation *OPDESC(struct nfsd4_op *op)
+static inline const struct nfsd4_operation *OPDESC(struct nfsd4_op *op)
 {
 	return &nfsd4_ops[op->opnum];
 }
@@ -1622,10 +1639,9 @@ static bool need_wrongsec_check(struct svc_rqst *rqstp)
 	struct nfsd4_compoundargs *argp = rqstp->rq_argp;
 	struct nfsd4_op *this = &argp->ops[resp->opcnt - 1];
 	struct nfsd4_op *next = &argp->ops[resp->opcnt];
-	struct nfsd4_operation *thisd;
-	struct nfsd4_operation *nextd;
+	const struct nfsd4_operation *thisd = OPDESC(this);
+	const struct nfsd4_operation *nextd;
 
-	thisd = OPDESC(this);
 	/*
 	 * Most ops check wronsec on our own; only the putfh-like ops
 	 * have special rules.
@@ -1673,12 +1689,12 @@ static void svcxdr_init_encode(struct svc_rqst *rqstp,
  * COMPOUND call.
  */
 static __be32
-nfsd4_proc_compound(struct svc_rqst *rqstp,
-		    struct nfsd4_compoundargs *args,
-		    struct nfsd4_compoundres *resp)
+nfsd4_proc_compound(struct svc_rqst *rqstp)
 {
+	struct nfsd4_compoundargs *args = rqstp->rq_argp;
+	struct nfsd4_compoundres *resp = rqstp->rq_resp;
 	struct nfsd4_op	*op;
-	struct nfsd4_operation *opdesc;
+	const struct nfsd4_operation *opdesc;
 	struct nfsd4_compound_state *cstate = &resp->cstate;
 	struct svc_fh *current_fh = &cstate->current_fh;
 	struct svc_fh *save_fh = &cstate->save_fh;
@@ -2091,360 +2107,360 @@ static inline u32 nfsd4_seek_rsize(struct svc_rqst *rqstp, struct nfsd4_op *op)
 	return (op_encode_hdr_size + 3) * sizeof(__be32);
 }
 
-static struct nfsd4_operation nfsd4_ops[] = {
+static const struct nfsd4_operation nfsd4_ops[] = {
 	[OP_ACCESS] = {
-		.op_func = (nfsd4op_func)nfsd4_access,
+		.op_func = nfsd4_access,
 		.op_name = "OP_ACCESS",
-		.op_rsize_bop = (nfsd4op_rsize)nfsd4_access_rsize,
+		.op_rsize_bop = nfsd4_access_rsize,
 	},
 	[OP_CLOSE] = {
-		.op_func = (nfsd4op_func)nfsd4_close,
+		.op_func = nfsd4_close,
 		.op_flags = OP_MODIFIES_SOMETHING,
 		.op_name = "OP_CLOSE",
-		.op_rsize_bop = (nfsd4op_rsize)nfsd4_status_stateid_rsize,
-		.op_get_currentstateid = (stateid_getter)nfsd4_get_closestateid,
-		.op_set_currentstateid = (stateid_setter)nfsd4_set_closestateid,
+		.op_rsize_bop = nfsd4_status_stateid_rsize,
+		.op_get_currentstateid = nfsd4_get_closestateid,
+		.op_set_currentstateid = nfsd4_set_closestateid,
 	},
 	[OP_COMMIT] = {
-		.op_func = (nfsd4op_func)nfsd4_commit,
+		.op_func = nfsd4_commit,
 		.op_flags = OP_MODIFIES_SOMETHING,
 		.op_name = "OP_COMMIT",
-		.op_rsize_bop = (nfsd4op_rsize)nfsd4_commit_rsize,
+		.op_rsize_bop = nfsd4_commit_rsize,
 	},
 	[OP_CREATE] = {
-		.op_func = (nfsd4op_func)nfsd4_create,
+		.op_func = nfsd4_create,
 		.op_flags = OP_MODIFIES_SOMETHING | OP_CACHEME | OP_CLEAR_STATEID,
 		.op_name = "OP_CREATE",
-		.op_rsize_bop = (nfsd4op_rsize)nfsd4_create_rsize,
+		.op_rsize_bop = nfsd4_create_rsize,
 	},
 	[OP_DELEGRETURN] = {
-		.op_func = (nfsd4op_func)nfsd4_delegreturn,
+		.op_func = nfsd4_delegreturn,
 		.op_flags = OP_MODIFIES_SOMETHING,
 		.op_name = "OP_DELEGRETURN",
 		.op_rsize_bop = nfsd4_only_status_rsize,
-		.op_get_currentstateid = (stateid_getter)nfsd4_get_delegreturnstateid,
+		.op_get_currentstateid = nfsd4_get_delegreturnstateid,
 	},
 	[OP_GETATTR] = {
-		.op_func = (nfsd4op_func)nfsd4_getattr,
+		.op_func = nfsd4_getattr,
 		.op_flags = ALLOWED_ON_ABSENT_FS,
 		.op_rsize_bop = nfsd4_getattr_rsize,
 		.op_name = "OP_GETATTR",
 	},
 	[OP_GETFH] = {
-		.op_func = (nfsd4op_func)nfsd4_getfh,
+		.op_func = nfsd4_getfh,
 		.op_name = "OP_GETFH",
-		.op_rsize_bop = (nfsd4op_rsize)nfsd4_getfh_rsize,
+		.op_rsize_bop = nfsd4_getfh_rsize,
 	},
 	[OP_LINK] = {
-		.op_func = (nfsd4op_func)nfsd4_link,
+		.op_func = nfsd4_link,
 		.op_flags = ALLOWED_ON_ABSENT_FS | OP_MODIFIES_SOMETHING
 				| OP_CACHEME,
 		.op_name = "OP_LINK",
-		.op_rsize_bop = (nfsd4op_rsize)nfsd4_link_rsize,
+		.op_rsize_bop = nfsd4_link_rsize,
 	},
 	[OP_LOCK] = {
-		.op_func = (nfsd4op_func)nfsd4_lock,
+		.op_func = nfsd4_lock,
 		.op_flags = OP_MODIFIES_SOMETHING,
 		.op_name = "OP_LOCK",
-		.op_rsize_bop = (nfsd4op_rsize)nfsd4_lock_rsize,
-		.op_set_currentstateid = (stateid_setter)nfsd4_set_lockstateid,
+		.op_rsize_bop = nfsd4_lock_rsize,
+		.op_set_currentstateid = nfsd4_set_lockstateid,
 	},
 	[OP_LOCKT] = {
-		.op_func = (nfsd4op_func)nfsd4_lockt,
+		.op_func = nfsd4_lockt,
 		.op_name = "OP_LOCKT",
-		.op_rsize_bop = (nfsd4op_rsize)nfsd4_lock_rsize,
+		.op_rsize_bop = nfsd4_lock_rsize,
 	},
 	[OP_LOCKU] = {
-		.op_func = (nfsd4op_func)nfsd4_locku,
+		.op_func = nfsd4_locku,
 		.op_flags = OP_MODIFIES_SOMETHING,
 		.op_name = "OP_LOCKU",
-		.op_rsize_bop = (nfsd4op_rsize)nfsd4_status_stateid_rsize,
-		.op_get_currentstateid = (stateid_getter)nfsd4_get_lockustateid,
+		.op_rsize_bop = nfsd4_status_stateid_rsize,
+		.op_get_currentstateid = nfsd4_get_lockustateid,
 	},
 	[OP_LOOKUP] = {
-		.op_func = (nfsd4op_func)nfsd4_lookup,
+		.op_func = nfsd4_lookup,
 		.op_flags = OP_HANDLES_WRONGSEC | OP_CLEAR_STATEID,
 		.op_name = "OP_LOOKUP",
-		.op_rsize_bop = (nfsd4op_rsize)nfsd4_only_status_rsize,
+		.op_rsize_bop = nfsd4_only_status_rsize,
 	},
 	[OP_LOOKUPP] = {
-		.op_func = (nfsd4op_func)nfsd4_lookupp,
+		.op_func = nfsd4_lookupp,
 		.op_flags = OP_HANDLES_WRONGSEC | OP_CLEAR_STATEID,
 		.op_name = "OP_LOOKUPP",
-		.op_rsize_bop = (nfsd4op_rsize)nfsd4_only_status_rsize,
+		.op_rsize_bop = nfsd4_only_status_rsize,
 	},
 	[OP_NVERIFY] = {
-		.op_func = (nfsd4op_func)nfsd4_nverify,
+		.op_func = nfsd4_nverify,
 		.op_name = "OP_NVERIFY",
-		.op_rsize_bop = (nfsd4op_rsize)nfsd4_only_status_rsize,
+		.op_rsize_bop = nfsd4_only_status_rsize,
 	},
 	[OP_OPEN] = {
-		.op_func = (nfsd4op_func)nfsd4_open,
+		.op_func = nfsd4_open,
 		.op_flags = OP_HANDLES_WRONGSEC | OP_MODIFIES_SOMETHING,
 		.op_name = "OP_OPEN",
-		.op_rsize_bop = (nfsd4op_rsize)nfsd4_open_rsize,
-		.op_set_currentstateid = (stateid_setter)nfsd4_set_openstateid,
+		.op_rsize_bop = nfsd4_open_rsize,
+		.op_set_currentstateid = nfsd4_set_openstateid,
 	},
 	[OP_OPEN_CONFIRM] = {
-		.op_func = (nfsd4op_func)nfsd4_open_confirm,
+		.op_func = nfsd4_open_confirm,
 		.op_flags = OP_MODIFIES_SOMETHING,
 		.op_name = "OP_OPEN_CONFIRM",
-		.op_rsize_bop = (nfsd4op_rsize)nfsd4_status_stateid_rsize,
+		.op_rsize_bop = nfsd4_status_stateid_rsize,
 	},
 	[OP_OPEN_DOWNGRADE] = {
-		.op_func = (nfsd4op_func)nfsd4_open_downgrade,
+		.op_func = nfsd4_open_downgrade,
 		.op_flags = OP_MODIFIES_SOMETHING,
 		.op_name = "OP_OPEN_DOWNGRADE",
-		.op_rsize_bop = (nfsd4op_rsize)nfsd4_status_stateid_rsize,
-		.op_get_currentstateid = (stateid_getter)nfsd4_get_opendowngradestateid,
-		.op_set_currentstateid = (stateid_setter)nfsd4_set_opendowngradestateid,
+		.op_rsize_bop = nfsd4_status_stateid_rsize,
+		.op_get_currentstateid = nfsd4_get_opendowngradestateid,
+		.op_set_currentstateid = nfsd4_set_opendowngradestateid,
 	},
 	[OP_PUTFH] = {
-		.op_func = (nfsd4op_func)nfsd4_putfh,
+		.op_func = nfsd4_putfh,
 		.op_flags = ALLOWED_WITHOUT_FH | ALLOWED_ON_ABSENT_FS
 				| OP_IS_PUTFH_LIKE | OP_CLEAR_STATEID,
 		.op_name = "OP_PUTFH",
-		.op_rsize_bop = (nfsd4op_rsize)nfsd4_only_status_rsize,
+		.op_rsize_bop = nfsd4_only_status_rsize,
 	},
 	[OP_PUTPUBFH] = {
-		.op_func = (nfsd4op_func)nfsd4_putrootfh,
+		.op_func = nfsd4_putrootfh,
 		.op_flags = ALLOWED_WITHOUT_FH | ALLOWED_ON_ABSENT_FS
 				| OP_IS_PUTFH_LIKE | OP_CLEAR_STATEID,
 		.op_name = "OP_PUTPUBFH",
-		.op_rsize_bop = (nfsd4op_rsize)nfsd4_only_status_rsize,
+		.op_rsize_bop = nfsd4_only_status_rsize,
 	},
 	[OP_PUTROOTFH] = {
-		.op_func = (nfsd4op_func)nfsd4_putrootfh,
+		.op_func = nfsd4_putrootfh,
 		.op_flags = ALLOWED_WITHOUT_FH | ALLOWED_ON_ABSENT_FS
 				| OP_IS_PUTFH_LIKE | OP_CLEAR_STATEID,
 		.op_name = "OP_PUTROOTFH",
-		.op_rsize_bop = (nfsd4op_rsize)nfsd4_only_status_rsize,
+		.op_rsize_bop = nfsd4_only_status_rsize,
 	},
 	[OP_READ] = {
-		.op_func = (nfsd4op_func)nfsd4_read,
+		.op_func = nfsd4_read,
 		.op_name = "OP_READ",
-		.op_rsize_bop = (nfsd4op_rsize)nfsd4_read_rsize,
-		.op_get_currentstateid = (stateid_getter)nfsd4_get_readstateid,
+		.op_rsize_bop = nfsd4_read_rsize,
+		.op_get_currentstateid = nfsd4_get_readstateid,
 	},
 	[OP_READDIR] = {
-		.op_func = (nfsd4op_func)nfsd4_readdir,
+		.op_func = nfsd4_readdir,
 		.op_name = "OP_READDIR",
-		.op_rsize_bop = (nfsd4op_rsize)nfsd4_readdir_rsize,
+		.op_rsize_bop = nfsd4_readdir_rsize,
 	},
 	[OP_READLINK] = {
-		.op_func = (nfsd4op_func)nfsd4_readlink,
+		.op_func = nfsd4_readlink,
 		.op_name = "OP_READLINK",
-		.op_rsize_bop = (nfsd4op_rsize)nfsd4_readlink_rsize,
+		.op_rsize_bop = nfsd4_readlink_rsize,
 	},
 	[OP_REMOVE] = {
-		.op_func = (nfsd4op_func)nfsd4_remove,
+		.op_func = nfsd4_remove,
 		.op_flags = OP_MODIFIES_SOMETHING | OP_CACHEME,
 		.op_name = "OP_REMOVE",
-		.op_rsize_bop = (nfsd4op_rsize)nfsd4_remove_rsize,
+		.op_rsize_bop = nfsd4_remove_rsize,
 	},
 	[OP_RENAME] = {
-		.op_func = (nfsd4op_func)nfsd4_rename,
+		.op_func = nfsd4_rename,
 		.op_flags = OP_MODIFIES_SOMETHING | OP_CACHEME,
 		.op_name = "OP_RENAME",
-		.op_rsize_bop = (nfsd4op_rsize)nfsd4_rename_rsize,
+		.op_rsize_bop = nfsd4_rename_rsize,
 	},
 	[OP_RENEW] = {
-		.op_func = (nfsd4op_func)nfsd4_renew,
+		.op_func = nfsd4_renew,
 		.op_flags = ALLOWED_WITHOUT_FH | ALLOWED_ON_ABSENT_FS
 				| OP_MODIFIES_SOMETHING,
 		.op_name = "OP_RENEW",
-		.op_rsize_bop = (nfsd4op_rsize)nfsd4_only_status_rsize,
+		.op_rsize_bop = nfsd4_only_status_rsize,
 
 	},
 	[OP_RESTOREFH] = {
-		.op_func = (nfsd4op_func)nfsd4_restorefh,
+		.op_func = nfsd4_restorefh,
 		.op_flags = ALLOWED_WITHOUT_FH | ALLOWED_ON_ABSENT_FS
 				| OP_IS_PUTFH_LIKE | OP_MODIFIES_SOMETHING,
 		.op_name = "OP_RESTOREFH",
-		.op_rsize_bop = (nfsd4op_rsize)nfsd4_only_status_rsize,
+		.op_rsize_bop = nfsd4_only_status_rsize,
 	},
 	[OP_SAVEFH] = {
-		.op_func = (nfsd4op_func)nfsd4_savefh,
+		.op_func = nfsd4_savefh,
 		.op_flags = OP_HANDLES_WRONGSEC | OP_MODIFIES_SOMETHING,
 		.op_name = "OP_SAVEFH",
-		.op_rsize_bop = (nfsd4op_rsize)nfsd4_only_status_rsize,
+		.op_rsize_bop = nfsd4_only_status_rsize,
 	},
 	[OP_SECINFO] = {
-		.op_func = (nfsd4op_func)nfsd4_secinfo,
+		.op_func = nfsd4_secinfo,
 		.op_flags = OP_HANDLES_WRONGSEC,
 		.op_name = "OP_SECINFO",
-		.op_rsize_bop = (nfsd4op_rsize)nfsd4_secinfo_rsize,
+		.op_rsize_bop = nfsd4_secinfo_rsize,
 	},
 	[OP_SETATTR] = {
-		.op_func = (nfsd4op_func)nfsd4_setattr,
+		.op_func = nfsd4_setattr,
 		.op_name = "OP_SETATTR",
 		.op_flags = OP_MODIFIES_SOMETHING | OP_CACHEME,
-		.op_rsize_bop = (nfsd4op_rsize)nfsd4_setattr_rsize,
-		.op_get_currentstateid = (stateid_getter)nfsd4_get_setattrstateid,
+		.op_rsize_bop = nfsd4_setattr_rsize,
+		.op_get_currentstateid = nfsd4_get_setattrstateid,
 	},
 	[OP_SETCLIENTID] = {
-		.op_func = (nfsd4op_func)nfsd4_setclientid,
+		.op_func = nfsd4_setclientid,
 		.op_flags = ALLOWED_WITHOUT_FH | ALLOWED_ON_ABSENT_FS
 				| OP_MODIFIES_SOMETHING | OP_CACHEME,
 		.op_name = "OP_SETCLIENTID",
-		.op_rsize_bop = (nfsd4op_rsize)nfsd4_setclientid_rsize,
+		.op_rsize_bop = nfsd4_setclientid_rsize,
 	},
 	[OP_SETCLIENTID_CONFIRM] = {
-		.op_func = (nfsd4op_func)nfsd4_setclientid_confirm,
+		.op_func = nfsd4_setclientid_confirm,
 		.op_flags = ALLOWED_WITHOUT_FH | ALLOWED_ON_ABSENT_FS
 				| OP_MODIFIES_SOMETHING | OP_CACHEME,
 		.op_name = "OP_SETCLIENTID_CONFIRM",
-		.op_rsize_bop = (nfsd4op_rsize)nfsd4_only_status_rsize,
+		.op_rsize_bop = nfsd4_only_status_rsize,
 	},
 	[OP_VERIFY] = {
-		.op_func = (nfsd4op_func)nfsd4_verify,
+		.op_func = nfsd4_verify,
 		.op_name = "OP_VERIFY",
-		.op_rsize_bop = (nfsd4op_rsize)nfsd4_only_status_rsize,
+		.op_rsize_bop = nfsd4_only_status_rsize,
 	},
 	[OP_WRITE] = {
-		.op_func = (nfsd4op_func)nfsd4_write,
+		.op_func = nfsd4_write,
 		.op_flags = OP_MODIFIES_SOMETHING | OP_CACHEME,
 		.op_name = "OP_WRITE",
-		.op_rsize_bop = (nfsd4op_rsize)nfsd4_write_rsize,
-		.op_get_currentstateid = (stateid_getter)nfsd4_get_writestateid,
+		.op_rsize_bop = nfsd4_write_rsize,
+		.op_get_currentstateid = nfsd4_get_writestateid,
 	},
 	[OP_RELEASE_LOCKOWNER] = {
-		.op_func = (nfsd4op_func)nfsd4_release_lockowner,
+		.op_func = nfsd4_release_lockowner,
 		.op_flags = ALLOWED_WITHOUT_FH | ALLOWED_ON_ABSENT_FS
 				| OP_MODIFIES_SOMETHING,
 		.op_name = "OP_RELEASE_LOCKOWNER",
-		.op_rsize_bop = (nfsd4op_rsize)nfsd4_only_status_rsize,
+		.op_rsize_bop = nfsd4_only_status_rsize,
 	},
 
 	/* NFSv4.1 operations */
 	[OP_EXCHANGE_ID] = {
-		.op_func = (nfsd4op_func)nfsd4_exchange_id,
+		.op_func = nfsd4_exchange_id,
 		.op_flags = ALLOWED_WITHOUT_FH | ALLOWED_AS_FIRST_OP
 				| OP_MODIFIES_SOMETHING,
 		.op_name = "OP_EXCHANGE_ID",
-		.op_rsize_bop = (nfsd4op_rsize)nfsd4_exchange_id_rsize,
+		.op_rsize_bop = nfsd4_exchange_id_rsize,
 	},
 	[OP_BACKCHANNEL_CTL] = {
-		.op_func = (nfsd4op_func)nfsd4_backchannel_ctl,
+		.op_func = nfsd4_backchannel_ctl,
 		.op_flags = ALLOWED_WITHOUT_FH | OP_MODIFIES_SOMETHING,
 		.op_name = "OP_BACKCHANNEL_CTL",
-		.op_rsize_bop = (nfsd4op_rsize)nfsd4_only_status_rsize,
+		.op_rsize_bop = nfsd4_only_status_rsize,
 	},
 	[OP_BIND_CONN_TO_SESSION] = {
-		.op_func = (nfsd4op_func)nfsd4_bind_conn_to_session,
+		.op_func = nfsd4_bind_conn_to_session,
 		.op_flags = ALLOWED_WITHOUT_FH | ALLOWED_AS_FIRST_OP
 				| OP_MODIFIES_SOMETHING,
 		.op_name = "OP_BIND_CONN_TO_SESSION",
-		.op_rsize_bop = (nfsd4op_rsize)nfsd4_bind_conn_to_session_rsize,
+		.op_rsize_bop = nfsd4_bind_conn_to_session_rsize,
 	},
 	[OP_CREATE_SESSION] = {
-		.op_func = (nfsd4op_func)nfsd4_create_session,
+		.op_func = nfsd4_create_session,
 		.op_flags = ALLOWED_WITHOUT_FH | ALLOWED_AS_FIRST_OP
 				| OP_MODIFIES_SOMETHING,
 		.op_name = "OP_CREATE_SESSION",
-		.op_rsize_bop = (nfsd4op_rsize)nfsd4_create_session_rsize,
+		.op_rsize_bop = nfsd4_create_session_rsize,
 	},
 	[OP_DESTROY_SESSION] = {
-		.op_func = (nfsd4op_func)nfsd4_destroy_session,
+		.op_func = nfsd4_destroy_session,
 		.op_flags = ALLOWED_WITHOUT_FH | ALLOWED_AS_FIRST_OP
 				| OP_MODIFIES_SOMETHING,
 		.op_name = "OP_DESTROY_SESSION",
-		.op_rsize_bop = (nfsd4op_rsize)nfsd4_only_status_rsize,
+		.op_rsize_bop = nfsd4_only_status_rsize,
 	},
 	[OP_SEQUENCE] = {
-		.op_func = (nfsd4op_func)nfsd4_sequence,
+		.op_func = nfsd4_sequence,
 		.op_flags = ALLOWED_WITHOUT_FH | ALLOWED_AS_FIRST_OP,
 		.op_name = "OP_SEQUENCE",
-		.op_rsize_bop = (nfsd4op_rsize)nfsd4_sequence_rsize,
+		.op_rsize_bop = nfsd4_sequence_rsize,
 	},
 	[OP_DESTROY_CLIENTID] = {
-		.op_func = (nfsd4op_func)nfsd4_destroy_clientid,
+		.op_func = nfsd4_destroy_clientid,
 		.op_flags = ALLOWED_WITHOUT_FH | ALLOWED_AS_FIRST_OP
 				| OP_MODIFIES_SOMETHING,
 		.op_name = "OP_DESTROY_CLIENTID",
-		.op_rsize_bop = (nfsd4op_rsize)nfsd4_only_status_rsize,
+		.op_rsize_bop = nfsd4_only_status_rsize,
 	},
 	[OP_RECLAIM_COMPLETE] = {
-		.op_func = (nfsd4op_func)nfsd4_reclaim_complete,
+		.op_func = nfsd4_reclaim_complete,
 		.op_flags = ALLOWED_WITHOUT_FH | OP_MODIFIES_SOMETHING,
 		.op_name = "OP_RECLAIM_COMPLETE",
-		.op_rsize_bop = (nfsd4op_rsize)nfsd4_only_status_rsize,
+		.op_rsize_bop = nfsd4_only_status_rsize,
 	},
 	[OP_SECINFO_NO_NAME] = {
-		.op_func = (nfsd4op_func)nfsd4_secinfo_no_name,
+		.op_func = nfsd4_secinfo_no_name,
 		.op_flags = OP_HANDLES_WRONGSEC,
 		.op_name = "OP_SECINFO_NO_NAME",
-		.op_rsize_bop = (nfsd4op_rsize)nfsd4_secinfo_rsize,
+		.op_rsize_bop = nfsd4_secinfo_rsize,
 	},
 	[OP_TEST_STATEID] = {
-		.op_func = (nfsd4op_func)nfsd4_test_stateid,
+		.op_func = nfsd4_test_stateid,
 		.op_flags = ALLOWED_WITHOUT_FH,
 		.op_name = "OP_TEST_STATEID",
-		.op_rsize_bop = (nfsd4op_rsize)nfsd4_test_stateid_rsize,
+		.op_rsize_bop = nfsd4_test_stateid_rsize,
 	},
 	[OP_FREE_STATEID] = {
-		.op_func = (nfsd4op_func)nfsd4_free_stateid,
+		.op_func = nfsd4_free_stateid,
 		.op_flags = ALLOWED_WITHOUT_FH | OP_MODIFIES_SOMETHING,
 		.op_name = "OP_FREE_STATEID",
-		.op_get_currentstateid = (stateid_getter)nfsd4_get_freestateid,
-		.op_rsize_bop = (nfsd4op_rsize)nfsd4_only_status_rsize,
+		.op_get_currentstateid = nfsd4_get_freestateid,
+		.op_rsize_bop = nfsd4_only_status_rsize,
 	},
 #ifdef CONFIG_NFSD_PNFS
 	[OP_GETDEVICEINFO] = {
-		.op_func = (nfsd4op_func)nfsd4_getdeviceinfo,
+		.op_func = nfsd4_getdeviceinfo,
 		.op_flags = ALLOWED_WITHOUT_FH,
 		.op_name = "OP_GETDEVICEINFO",
-		.op_rsize_bop = (nfsd4op_rsize)nfsd4_getdeviceinfo_rsize,
+		.op_rsize_bop = nfsd4_getdeviceinfo_rsize,
 	},
 	[OP_LAYOUTGET] = {
-		.op_func = (nfsd4op_func)nfsd4_layoutget,
+		.op_func = nfsd4_layoutget,
 		.op_flags = OP_MODIFIES_SOMETHING,
 		.op_name = "OP_LAYOUTGET",
-		.op_rsize_bop = (nfsd4op_rsize)nfsd4_layoutget_rsize,
+		.op_rsize_bop = nfsd4_layoutget_rsize,
 	},
 	[OP_LAYOUTCOMMIT] = {
-		.op_func = (nfsd4op_func)nfsd4_layoutcommit,
+		.op_func = nfsd4_layoutcommit,
 		.op_flags = OP_MODIFIES_SOMETHING,
 		.op_name = "OP_LAYOUTCOMMIT",
-		.op_rsize_bop = (nfsd4op_rsize)nfsd4_layoutcommit_rsize,
+		.op_rsize_bop = nfsd4_layoutcommit_rsize,
 	},
 	[OP_LAYOUTRETURN] = {
-		.op_func = (nfsd4op_func)nfsd4_layoutreturn,
+		.op_func = nfsd4_layoutreturn,
 		.op_flags = OP_MODIFIES_SOMETHING,
 		.op_name = "OP_LAYOUTRETURN",
-		.op_rsize_bop = (nfsd4op_rsize)nfsd4_layoutreturn_rsize,
+		.op_rsize_bop = nfsd4_layoutreturn_rsize,
 	},
 #endif /* CONFIG_NFSD_PNFS */
 
 	/* NFSv4.2 operations */
 	[OP_ALLOCATE] = {
-		.op_func = (nfsd4op_func)nfsd4_allocate,
+		.op_func = nfsd4_allocate,
 		.op_flags = OP_MODIFIES_SOMETHING | OP_CACHEME,
 		.op_name = "OP_ALLOCATE",
-		.op_rsize_bop = (nfsd4op_rsize)nfsd4_only_status_rsize,
+		.op_rsize_bop = nfsd4_only_status_rsize,
 	},
 	[OP_DEALLOCATE] = {
-		.op_func = (nfsd4op_func)nfsd4_deallocate,
+		.op_func = nfsd4_deallocate,
 		.op_flags = OP_MODIFIES_SOMETHING | OP_CACHEME,
 		.op_name = "OP_DEALLOCATE",
-		.op_rsize_bop = (nfsd4op_rsize)nfsd4_only_status_rsize,
+		.op_rsize_bop = nfsd4_only_status_rsize,
 	},
 	[OP_CLONE] = {
-		.op_func = (nfsd4op_func)nfsd4_clone,
+		.op_func = nfsd4_clone,
 		.op_flags = OP_MODIFIES_SOMETHING | OP_CACHEME,
 		.op_name = "OP_CLONE",
-		.op_rsize_bop = (nfsd4op_rsize)nfsd4_only_status_rsize,
+		.op_rsize_bop = nfsd4_only_status_rsize,
 	},
 	[OP_COPY] = {
-		.op_func = (nfsd4op_func)nfsd4_copy,
+		.op_func = nfsd4_copy,
 		.op_flags = OP_MODIFIES_SOMETHING | OP_CACHEME,
 		.op_name = "OP_COPY",
-		.op_rsize_bop = (nfsd4op_rsize)nfsd4_copy_rsize,
+		.op_rsize_bop = nfsd4_copy_rsize,
 	},
 	[OP_SEEK] = {
-		.op_func = (nfsd4op_func)nfsd4_seek,
+		.op_func = nfsd4_seek,
 		.op_name = "OP_SEEK",
-		.op_rsize_bop = (nfsd4op_rsize)nfsd4_seek_rsize,
+		.op_rsize_bop = nfsd4_seek_rsize,
 	},
 };
 
@@ -2515,19 +2531,19 @@ static const char *nfsd4_op_name(unsigned opnum)
 #define nfsd4_voidres			nfsd4_voidargs
 struct nfsd4_voidargs { int dummy; };
 
-static struct svc_procedure		nfsd_procedures4[2] = {
+static const struct svc_procedure nfsd_procedures4[2] = {
 	[NFSPROC4_NULL] = {
-		.pc_func = (svc_procfunc) nfsd4_proc_null,
-		.pc_encode = (kxdrproc_t) nfs4svc_encode_voidres,
+		.pc_func = nfsd4_proc_null,
+		.pc_encode = nfs4svc_encode_voidres,
 		.pc_argsize = sizeof(struct nfsd4_voidargs),
 		.pc_ressize = sizeof(struct nfsd4_voidres),
 		.pc_cachetype = RC_NOCACHE,
 		.pc_xdrressize = 1,
 	},
 	[NFSPROC4_COMPOUND] = {
-		.pc_func = (svc_procfunc) nfsd4_proc_compound,
-		.pc_decode = (kxdrproc_t) nfs4svc_decode_compoundargs,
-		.pc_encode = (kxdrproc_t) nfs4svc_encode_compoundres,
+		.pc_func = nfsd4_proc_compound,
+		.pc_decode = nfs4svc_decode_compoundargs,
+		.pc_encode = nfs4svc_encode_compoundres,
 		.pc_argsize = sizeof(struct nfsd4_compoundargs),
 		.pc_ressize = sizeof(struct nfsd4_compoundres),
 		.pc_release = nfsd4_release_compoundargs,
@@ -2536,10 +2552,12 @@ static struct svc_procedure		nfsd_procedures4[2] = {
 	},
 };
 
-struct svc_version	nfsd_version4 = {
+static unsigned int nfsd_count3[ARRAY_SIZE(nfsd_procedures4)];
+const struct svc_version nfsd_version4 = {
 	.vs_vers		= 4,
 	.vs_nproc		= 2,
 	.vs_proc		= nfsd_procedures4,
+	.vs_count		= nfsd_count3,
 	.vs_dispatch		= nfsd_dispatch,
 	.vs_xdrsize		= NFS4_SVC_XDRSIZE,
 	.vs_rpcb_optnl		= true,
diff --git a/fs/nfsd/nfs4state.c b/fs/nfsd/nfs4state.c
index 22002fb75a18..0c04f81aa63b 100644
--- a/fs/nfsd/nfs4state.c
+++ b/fs/nfsd/nfs4state.c
@@ -2402,10 +2402,10 @@ static bool client_has_state(struct nfs4_client *clp)
 }
 
 __be32
-nfsd4_exchange_id(struct svc_rqst *rqstp,
-		  struct nfsd4_compound_state *cstate,
-		  struct nfsd4_exchange_id *exid)
+nfsd4_exchange_id(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate,
+		union nfsd4_op_u *u)
 {
+	struct nfsd4_exchange_id *exid = &u->exchange_id;
 	struct nfs4_client *conf, *new;
 	struct nfs4_client *unconf = NULL;
 	__be32 status;
@@ -2698,9 +2698,9 @@ static __be32 nfsd4_check_cb_sec(struct nfsd4_cb_sec *cbs)
 
 __be32
 nfsd4_create_session(struct svc_rqst *rqstp,
-		     struct nfsd4_compound_state *cstate,
-		     struct nfsd4_create_session *cr_ses)
+		struct nfsd4_compound_state *cstate, union nfsd4_op_u *u)
 {
+	struct nfsd4_create_session *cr_ses = &u->create_session;
 	struct sockaddr *sa = svc_addr(rqstp);
 	struct nfs4_client *conf, *unconf;
 	struct nfs4_client *old = NULL;
@@ -2824,8 +2824,11 @@ static __be32 nfsd4_map_bcts_dir(u32 *dir)
 	return nfserr_inval;
 }
 
-__be32 nfsd4_backchannel_ctl(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, struct nfsd4_backchannel_ctl *bc)
+__be32 nfsd4_backchannel_ctl(struct svc_rqst *rqstp,
+		struct nfsd4_compound_state *cstate,
+		union nfsd4_op_u *u)
 {
+	struct nfsd4_backchannel_ctl *bc = &u->backchannel_ctl;
 	struct nfsd4_session *session = cstate->session;
 	struct nfsd_net *nn = net_generic(SVC_NET(rqstp), nfsd_net_id);
 	__be32 status;
@@ -2845,8 +2848,9 @@ __be32 nfsd4_backchannel_ctl(struct svc_rqst *rqstp, struct nfsd4_compound_state
 
 __be32 nfsd4_bind_conn_to_session(struct svc_rqst *rqstp,
 		     struct nfsd4_compound_state *cstate,
-		     struct nfsd4_bind_conn_to_session *bcts)
+		     union nfsd4_op_u *u)
 {
+	struct nfsd4_bind_conn_to_session *bcts = &u->bind_conn_to_session;
 	__be32 status;
 	struct nfsd4_conn *conn;
 	struct nfsd4_session *session;
@@ -2886,10 +2890,10 @@ static bool nfsd4_compound_in_session(struct nfsd4_session *session, struct nfs4
 }
 
 __be32
-nfsd4_destroy_session(struct svc_rqst *r,
-		      struct nfsd4_compound_state *cstate,
-		      struct nfsd4_destroy_session *sessionid)
+nfsd4_destroy_session(struct svc_rqst *r, struct nfsd4_compound_state *cstate,
+		union nfsd4_op_u *u)
 {
+	struct nfsd4_destroy_session *sessionid = &u->destroy_session;
 	struct nfsd4_session *ses;
 	__be32 status;
 	int ref_held_by_me = 0;
@@ -2983,10 +2987,10 @@ static bool nfsd4_request_too_big(struct svc_rqst *rqstp,
 }
 
 __be32
-nfsd4_sequence(struct svc_rqst *rqstp,
-	       struct nfsd4_compound_state *cstate,
-	       struct nfsd4_sequence *seq)
+nfsd4_sequence(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate,
+		union nfsd4_op_u *u)
 {
+	struct nfsd4_sequence *seq = &u->sequence;
 	struct nfsd4_compoundres *resp = rqstp->rq_resp;
 	struct xdr_stream *xdr = &resp->xdr;
 	struct nfsd4_session *session;
@@ -3120,8 +3124,11 @@ nfsd4_sequence_done(struct nfsd4_compoundres *resp)
 }
 
 __be32
-nfsd4_destroy_clientid(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, struct nfsd4_destroy_clientid *dc)
+nfsd4_destroy_clientid(struct svc_rqst *rqstp,
+		struct nfsd4_compound_state *cstate,
+		union nfsd4_op_u *u)
 {
+	struct nfsd4_destroy_clientid *dc = &u->destroy_clientid;
 	struct nfs4_client *conf, *unconf;
 	struct nfs4_client *clp = NULL;
 	__be32 status = 0;
@@ -3161,8 +3168,10 @@ out:
 }
 
 __be32
-nfsd4_reclaim_complete(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, struct nfsd4_reclaim_complete *rc)
+nfsd4_reclaim_complete(struct svc_rqst *rqstp,
+		struct nfsd4_compound_state *cstate, union nfsd4_op_u *u)
 {
+	struct nfsd4_reclaim_complete *rc = &u->reclaim_complete;
 	__be32 status = 0;
 
 	if (rc->rca_one_fs) {
@@ -3199,8 +3208,9 @@ out:
 
 __be32
 nfsd4_setclientid(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate,
-		  struct nfsd4_setclientid *setclid)
+		  union nfsd4_op_u *u)
 {
+	struct nfsd4_setclientid *setclid = &u->setclientid;
 	struct xdr_netobj 	clname = setclid->se_name;
 	nfs4_verifier		clverifier = setclid->se_verf;
 	struct nfs4_client	*conf, *new;
@@ -3257,9 +3267,11 @@ out:
 
 __be32
 nfsd4_setclientid_confirm(struct svc_rqst *rqstp,
-			 struct nfsd4_compound_state *cstate,
-			 struct nfsd4_setclientid_confirm *setclientid_confirm)
+			struct nfsd4_compound_state *cstate,
+			union nfsd4_op_u *u)
 {
+	struct nfsd4_setclientid_confirm *setclientid_confirm =
+			&u->setclientid_confirm;
 	struct nfs4_client *conf, *unconf;
 	struct nfs4_client *old = NULL;
 	nfs4_verifier confirm = setclientid_confirm->sc_confirm; 
@@ -4506,8 +4518,9 @@ void nfsd4_cleanup_open_state(struct nfsd4_compound_state *cstate,
 
 __be32
 nfsd4_renew(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate,
-	    clientid_t *clid)
+	    union nfsd4_op_u *u)
 {
+	clientid_t *clid = &u->renew;
 	struct nfs4_client *clp;
 	__be32 status;
 	struct nfsd_net *nn = net_generic(SVC_NET(rqstp), nfsd_net_id);
@@ -4993,8 +5006,9 @@ out:
  */
 __be32
 nfsd4_test_stateid(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate,
-		   struct nfsd4_test_stateid *test_stateid)
+		   union nfsd4_op_u *u)
 {
+	struct nfsd4_test_stateid *test_stateid = &u->test_stateid;
 	struct nfsd4_test_stateid_id *stateid;
 	struct nfs4_client *cl = cstate->session->se_client;
 
@@ -5033,8 +5047,9 @@ out:
 
 __be32
 nfsd4_free_stateid(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate,
-		   struct nfsd4_free_stateid *free_stateid)
+		   union nfsd4_op_u *u)
 {
+	struct nfsd4_free_stateid *free_stateid = &u->free_stateid;
 	stateid_t *stateid = &free_stateid->fr_stateid;
 	struct nfs4_stid *s;
 	struct nfs4_delegation *dp;
@@ -5162,8 +5177,9 @@ static __be32 nfs4_preprocess_confirmed_seqid_op(struct nfsd4_compound_state *cs
 
 __be32
 nfsd4_open_confirm(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate,
-		   struct nfsd4_open_confirm *oc)
+		   union nfsd4_op_u *u)
 {
+	struct nfsd4_open_confirm *oc = &u->open_confirm;
 	__be32 status;
 	struct nfs4_openowner *oo;
 	struct nfs4_ol_stateid *stp;
@@ -5230,9 +5246,9 @@ static inline void nfs4_stateid_downgrade(struct nfs4_ol_stateid *stp, u32 to_ac
 
 __be32
 nfsd4_open_downgrade(struct svc_rqst *rqstp,
-		     struct nfsd4_compound_state *cstate,
-		     struct nfsd4_open_downgrade *od)
+		     struct nfsd4_compound_state *cstate, union nfsd4_op_u *u)
 {
+	struct nfsd4_open_downgrade *od = &u->open_downgrade;
 	__be32 status;
 	struct nfs4_ol_stateid *stp;
 	struct nfsd_net *nn = net_generic(SVC_NET(rqstp), nfsd_net_id);
@@ -5300,8 +5316,9 @@ static void nfsd4_close_open_stateid(struct nfs4_ol_stateid *s)
  */
 __be32
 nfsd4_close(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate,
-	    struct nfsd4_close *close)
+		union nfsd4_op_u *u)
 {
+	struct nfsd4_close *close = &u->close;
 	__be32 status;
 	struct nfs4_ol_stateid *stp;
 	struct net *net = SVC_NET(rqstp);
@@ -5330,8 +5347,9 @@ out:
 
 __be32
 nfsd4_delegreturn(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate,
-		  struct nfsd4_delegreturn *dr)
+		  union nfsd4_op_u *u)
 {
+	struct nfsd4_delegreturn *dr = &u->delegreturn;
 	struct nfs4_delegation *dp;
 	stateid_t *stateid = &dr->dr_stateid;
 	struct nfs4_stid *s;
@@ -5706,8 +5724,9 @@ out:
  */
 __be32
 nfsd4_lock(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate,
-	   struct nfsd4_lock *lock)
+	   union nfsd4_op_u *u)
 {
+	struct nfsd4_lock *lock = &u->lock;
 	struct nfs4_openowner *open_sop = NULL;
 	struct nfs4_lockowner *lock_sop = NULL;
 	struct nfs4_ol_stateid *lock_stp = NULL;
@@ -5939,8 +5958,9 @@ static __be32 nfsd_test_lock(struct svc_rqst *rqstp, struct svc_fh *fhp, struct
  */
 __be32
 nfsd4_lockt(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate,
-	    struct nfsd4_lockt *lockt)
+	    union nfsd4_op_u *u)
 {
+	struct nfsd4_lockt *lockt = &u->lockt;
 	struct file_lock *file_lock = NULL;
 	struct nfs4_lockowner *lo = NULL;
 	__be32 status;
@@ -6012,8 +6032,9 @@ out:
 
 __be32
 nfsd4_locku(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate,
-	    struct nfsd4_locku *locku)
+	    union nfsd4_op_u *u)
 {
+	struct nfsd4_locku *locku = &u->locku;
 	struct nfs4_ol_stateid *stp;
 	struct file *filp = NULL;
 	struct file_lock *file_lock = NULL;
@@ -6119,8 +6140,9 @@ check_for_locks(struct nfs4_file *fp, struct nfs4_lockowner *lowner)
 __be32
 nfsd4_release_lockowner(struct svc_rqst *rqstp,
 			struct nfsd4_compound_state *cstate,
-			struct nfsd4_release_lockowner *rlockowner)
+			union nfsd4_op_u *u)
 {
+	struct nfsd4_release_lockowner *rlockowner = &u->release_lockowner;
 	clientid_t *clid = &rlockowner->rl_clientid;
 	struct nfs4_stateowner *sop;
 	struct nfs4_lockowner *lo = NULL;
@@ -7103,27 +7125,31 @@ clear_current_stateid(struct nfsd4_compound_state *cstate)
  * functions to set current state id
  */
 void
-nfsd4_set_opendowngradestateid(struct nfsd4_compound_state *cstate, struct nfsd4_open_downgrade *odp)
+nfsd4_set_opendowngradestateid(struct nfsd4_compound_state *cstate,
+		union nfsd4_op_u *u)
 {
-	put_stateid(cstate, &odp->od_stateid);
+	put_stateid(cstate, &u->open_downgrade.od_stateid);
 }
 
 void
-nfsd4_set_openstateid(struct nfsd4_compound_state *cstate, struct nfsd4_open *open)
+nfsd4_set_openstateid(struct nfsd4_compound_state *cstate,
+		union nfsd4_op_u *u)
 {
-	put_stateid(cstate, &open->op_stateid);
+	put_stateid(cstate, &u->open.op_stateid);
 }
 
 void
-nfsd4_set_closestateid(struct nfsd4_compound_state *cstate, struct nfsd4_close *close)
+nfsd4_set_closestateid(struct nfsd4_compound_state *cstate,
+		union nfsd4_op_u *u)
 {
-	put_stateid(cstate, &close->cl_stateid);
+	put_stateid(cstate, &u->close.cl_stateid);
 }
 
 void
-nfsd4_set_lockstateid(struct nfsd4_compound_state *cstate, struct nfsd4_lock *lock)
+nfsd4_set_lockstateid(struct nfsd4_compound_state *cstate,
+		union nfsd4_op_u *u)
 {
-	put_stateid(cstate, &lock->lk_resp_stateid);
+	put_stateid(cstate, &u->lock.lk_resp_stateid);
 }
 
 /*
@@ -7131,49 +7157,57 @@ nfsd4_set_lockstateid(struct nfsd4_compound_state *cstate, struct nfsd4_lock *lo
  */
 
 void
-nfsd4_get_opendowngradestateid(struct nfsd4_compound_state *cstate, struct nfsd4_open_downgrade *odp)
+nfsd4_get_opendowngradestateid(struct nfsd4_compound_state *cstate,
+		union nfsd4_op_u *u)
 {
-	get_stateid(cstate, &odp->od_stateid);
+	get_stateid(cstate, &u->open_downgrade.od_stateid);
 }
 
 void
-nfsd4_get_delegreturnstateid(struct nfsd4_compound_state *cstate, struct nfsd4_delegreturn *drp)
+nfsd4_get_delegreturnstateid(struct nfsd4_compound_state *cstate,
+		union nfsd4_op_u *u)
 {
-	get_stateid(cstate, &drp->dr_stateid);
+	get_stateid(cstate, &u->delegreturn.dr_stateid);
 }
 
 void
-nfsd4_get_freestateid(struct nfsd4_compound_state *cstate, struct nfsd4_free_stateid *fsp)
+nfsd4_get_freestateid(struct nfsd4_compound_state *cstate,
+		union nfsd4_op_u *u)
 {
-	get_stateid(cstate, &fsp->fr_stateid);
+	get_stateid(cstate, &u->free_stateid.fr_stateid);
 }
 
 void
-nfsd4_get_setattrstateid(struct nfsd4_compound_state *cstate, struct nfsd4_setattr *setattr)
+nfsd4_get_setattrstateid(struct nfsd4_compound_state *cstate,
+		union nfsd4_op_u *u)
 {
-	get_stateid(cstate, &setattr->sa_stateid);
+	get_stateid(cstate, &u->setattr.sa_stateid);
 }
 
 void
-nfsd4_get_closestateid(struct nfsd4_compound_state *cstate, struct nfsd4_close *close)
+nfsd4_get_closestateid(struct nfsd4_compound_state *cstate,
+		union nfsd4_op_u *u)
 {
-	get_stateid(cstate, &close->cl_stateid);
+	get_stateid(cstate, &u->close.cl_stateid);
 }
 
 void
-nfsd4_get_lockustateid(struct nfsd4_compound_state *cstate, struct nfsd4_locku *locku)
+nfsd4_get_lockustateid(struct nfsd4_compound_state *cstate,
+		union nfsd4_op_u *u)
 {
-	get_stateid(cstate, &locku->lu_stateid);
+	get_stateid(cstate, &u->locku.lu_stateid);
 }
 
 void
-nfsd4_get_readstateid(struct nfsd4_compound_state *cstate, struct nfsd4_read *read)
+nfsd4_get_readstateid(struct nfsd4_compound_state *cstate,
+		union nfsd4_op_u *u)
 {
-	get_stateid(cstate, &read->rd_stateid);
+	get_stateid(cstate, &u->read.rd_stateid);
 }
 
 void
-nfsd4_get_writestateid(struct nfsd4_compound_state *cstate, struct nfsd4_write *write)
+nfsd4_get_writestateid(struct nfsd4_compound_state *cstate,
+		union nfsd4_op_u *u)
 {
-	get_stateid(cstate, &write->wr_stateid);
+	get_stateid(cstate, &u->write.wr_stateid);
 }
diff --git a/fs/nfsd/nfs4xdr.c b/fs/nfsd/nfs4xdr.c
index 26780d53a6f9..20fbcab97753 100644
--- a/fs/nfsd/nfs4xdr.c
+++ b/fs/nfsd/nfs4xdr.c
@@ -1973,7 +1973,7 @@ static __be32 *encode_change(__be32 *p, struct kstat *stat, struct inode *inode,
 		*p++ = cpu_to_be32(convert_to_wallclock(exp->cd->flush_time));
 		*p++ = 0;
 	} else if (IS_I_VERSION(inode)) {
-		p = xdr_encode_hyper(p, inode->i_version);
+		p = xdr_encode_hyper(p, nfsd4_change_attribute(inode));
 	} else {
 		*p++ = cpu_to_be32(stat->ctime.tv_sec);
 		*p++ = cpu_to_be32(stat->ctime.tv_nsec);
@@ -4538,14 +4538,13 @@ nfsd4_encode_replay(struct xdr_stream *xdr, struct nfsd4_op *op)
 }
 
 int
-nfs4svc_encode_voidres(struct svc_rqst *rqstp, __be32 *p, void *dummy)
+nfs4svc_encode_voidres(struct svc_rqst *rqstp, __be32 *p)
 {
         return xdr_ressize_check(rqstp, p);
 }
 
-int nfsd4_release_compoundargs(void *rq, __be32 *p, void *resp)
+void nfsd4_release_compoundargs(struct svc_rqst *rqstp)
 {
-	struct svc_rqst *rqstp = rq;
 	struct nfsd4_compoundargs *args = rqstp->rq_argp;
 
 	if (args->ops != args->iops) {
@@ -4559,12 +4558,13 @@ int nfsd4_release_compoundargs(void *rq, __be32 *p, void *resp)
 		args->to_free = tb->next;
 		kfree(tb);
 	}
-	return 1;
 }
 
 int
-nfs4svc_decode_compoundargs(struct svc_rqst *rqstp, __be32 *p, struct nfsd4_compoundargs *args)
+nfs4svc_decode_compoundargs(struct svc_rqst *rqstp, __be32 *p)
 {
+	struct nfsd4_compoundargs *args = rqstp->rq_argp;
+
 	if (rqstp->rq_arg.head[0].iov_len % 4) {
 		/* client is nuts */
 		dprintk("%s: compound not properly padded! (peeraddr=%pISc xid=0x%x)",
@@ -4584,11 +4584,12 @@ nfs4svc_decode_compoundargs(struct svc_rqst *rqstp, __be32 *p, struct nfsd4_comp
 }
 
 int
-nfs4svc_encode_compoundres(struct svc_rqst *rqstp, __be32 *p, struct nfsd4_compoundres *resp)
+nfs4svc_encode_compoundres(struct svc_rqst *rqstp, __be32 *p)
 {
 	/*
 	 * All that remains is to write the tag and operation count...
 	 */
+	struct nfsd4_compoundres *resp = rqstp->rq_resp;
 	struct xdr_buf *buf = resp->xdr.buf;
 
 	WARN_ON_ONCE(buf->len != buf->head[0].iov_len + buf->page_len +
diff --git a/fs/nfsd/nfsd.h b/fs/nfsd/nfsd.h
index d96606801d47..b9c538ab7a59 100644
--- a/fs/nfsd/nfsd.h
+++ b/fs/nfsd/nfsd.h
@@ -60,7 +60,7 @@ struct readdir_cd {
 
 
 extern struct svc_program	nfsd_program;
-extern struct svc_version	nfsd_version2, nfsd_version3,
+extern const struct svc_version	nfsd_version2, nfsd_version3,
 				nfsd_version4;
 extern struct mutex		nfsd_mutex;
 extern spinlock_t		nfsd_drc_lock;
@@ -86,12 +86,12 @@ void		nfsd_destroy(struct net *net);
 
 #if defined(CONFIG_NFSD_V2_ACL) || defined(CONFIG_NFSD_V3_ACL)
 #ifdef CONFIG_NFSD_V2_ACL
-extern struct svc_version nfsd_acl_version2;
+extern const struct svc_version nfsd_acl_version2;
 #else
 #define nfsd_acl_version2 NULL
 #endif
 #ifdef CONFIG_NFSD_V3_ACL
-extern struct svc_version nfsd_acl_version3;
+extern const struct svc_version nfsd_acl_version3;
 #else
 #define nfsd_acl_version3 NULL
 #endif
diff --git a/fs/nfsd/nfsfh.h b/fs/nfsd/nfsfh.h
index f84fe6bf9aee..e47cf6c2ac28 100644
--- a/fs/nfsd/nfsfh.h
+++ b/fs/nfsd/nfsfh.h
@@ -241,6 +241,28 @@ fh_clear_wcc(struct svc_fh *fhp)
 }
 
 /*
+ * We could use i_version alone as the change attribute.  However,
+ * i_version can go backwards after a reboot.  On its own that doesn't
+ * necessarily cause a problem, but if i_version goes backwards and then
+ * is incremented again it could reuse a value that was previously used
+ * before boot, and a client who queried the two values might
+ * incorrectly assume nothing changed.
+ *
+ * By using both ctime and the i_version counter we guarantee that as
+ * long as time doesn't go backwards we never reuse an old value.
+ */
+static inline u64 nfsd4_change_attribute(struct inode *inode)
+{
+	u64 chattr;
+
+	chattr =  inode->i_ctime.tv_sec;
+	chattr <<= 30;
+	chattr += inode->i_ctime.tv_nsec;
+	chattr += inode->i_version;
+	return chattr;
+}
+
+/*
  * Fill in the pre_op attr for the wcc data
  */
 static inline void
@@ -253,7 +275,7 @@ fill_pre_wcc(struct svc_fh *fhp)
 		fhp->fh_pre_mtime = inode->i_mtime;
 		fhp->fh_pre_ctime = inode->i_ctime;
 		fhp->fh_pre_size  = inode->i_size;
-		fhp->fh_pre_change = inode->i_version;
+		fhp->fh_pre_change = nfsd4_change_attribute(inode);
 		fhp->fh_pre_saved = true;
 	}
 }
diff --git a/fs/nfsd/nfsproc.c b/fs/nfsd/nfsproc.c
index 03a7e9da4da0..5076ae2b8258 100644
--- a/fs/nfsd/nfsproc.c
+++ b/fs/nfsd/nfsproc.c
@@ -17,7 +17,7 @@ typedef struct svc_buf	svc_buf;
 
 
 static __be32
-nfsd_proc_null(struct svc_rqst *rqstp, void *argp, void *resp)
+nfsd_proc_null(struct svc_rqst *rqstp)
 {
 	return nfs_ok;
 }
@@ -39,9 +39,10 @@ nfsd_return_dirop(__be32 err, struct nfsd_diropres *resp)
  * N.B. After this call resp->fh needs an fh_put
  */
 static __be32
-nfsd_proc_getattr(struct svc_rqst *rqstp, struct nfsd_fhandle  *argp,
-					  struct nfsd_attrstat *resp)
+nfsd_proc_getattr(struct svc_rqst *rqstp)
 {
+	struct nfsd_fhandle *argp = rqstp->rq_argp;
+	struct nfsd_attrstat *resp = rqstp->rq_resp;
 	__be32 nfserr;
 	dprintk("nfsd: GETATTR  %s\n", SVCFH_fmt(&argp->fh));
 
@@ -56,9 +57,10 @@ nfsd_proc_getattr(struct svc_rqst *rqstp, struct nfsd_fhandle  *argp,
  * N.B. After this call resp->fh needs an fh_put
  */
 static __be32
-nfsd_proc_setattr(struct svc_rqst *rqstp, struct nfsd_sattrargs *argp,
-					  struct nfsd_attrstat  *resp)
+nfsd_proc_setattr(struct svc_rqst *rqstp)
 {
+	struct nfsd_sattrargs *argp = rqstp->rq_argp;
+	struct nfsd_attrstat *resp = rqstp->rq_resp;
 	struct iattr *iap = &argp->attrs;
 	struct svc_fh *fhp;
 	__be32 nfserr;
@@ -122,9 +124,10 @@ done:
  * N.B. After this call resp->fh needs an fh_put
  */
 static __be32
-nfsd_proc_lookup(struct svc_rqst *rqstp, struct nfsd_diropargs *argp,
-					 struct nfsd_diropres  *resp)
+nfsd_proc_lookup(struct svc_rqst *rqstp)
 {
+	struct nfsd_diropargs *argp = rqstp->rq_argp;
+	struct nfsd_diropres *resp = rqstp->rq_resp;
 	__be32	nfserr;
 
 	dprintk("nfsd: LOOKUP   %s %.*s\n",
@@ -142,9 +145,10 @@ nfsd_proc_lookup(struct svc_rqst *rqstp, struct nfsd_diropargs *argp,
  * Read a symlink.
  */
 static __be32
-nfsd_proc_readlink(struct svc_rqst *rqstp, struct nfsd_readlinkargs *argp,
-					   struct nfsd_readlinkres *resp)
+nfsd_proc_readlink(struct svc_rqst *rqstp)
 {
+	struct nfsd_readlinkargs *argp = rqstp->rq_argp;
+	struct nfsd_readlinkres *resp = rqstp->rq_resp;
 	__be32	nfserr;
 
 	dprintk("nfsd: READLINK %s\n", SVCFH_fmt(&argp->fh));
@@ -162,9 +166,10 @@ nfsd_proc_readlink(struct svc_rqst *rqstp, struct nfsd_readlinkargs *argp,
  * N.B. After this call resp->fh needs an fh_put
  */
 static __be32
-nfsd_proc_read(struct svc_rqst *rqstp, struct nfsd_readargs *argp,
-				       struct nfsd_readres  *resp)
+nfsd_proc_read(struct svc_rqst *rqstp)
 {
+	struct nfsd_readargs *argp = rqstp->rq_argp;
+	struct nfsd_readres *resp = rqstp->rq_resp;
 	__be32	nfserr;
 
 	dprintk("nfsd: READ    %s %d bytes at %d\n",
@@ -200,9 +205,10 @@ nfsd_proc_read(struct svc_rqst *rqstp, struct nfsd_readargs *argp,
  * N.B. After this call resp->fh needs an fh_put
  */
 static __be32
-nfsd_proc_write(struct svc_rqst *rqstp, struct nfsd_writeargs *argp,
-					struct nfsd_attrstat  *resp)
+nfsd_proc_write(struct svc_rqst *rqstp)
 {
+	struct nfsd_writeargs *argp = rqstp->rq_argp;
+	struct nfsd_attrstat *resp = rqstp->rq_resp;
 	__be32	nfserr;
 	unsigned long cnt = argp->len;
 
@@ -222,9 +228,10 @@ nfsd_proc_write(struct svc_rqst *rqstp, struct nfsd_writeargs *argp,
  * N.B. After this call _both_ argp->fh and resp->fh need an fh_put
  */
 static __be32
-nfsd_proc_create(struct svc_rqst *rqstp, struct nfsd_createargs *argp,
-					 struct nfsd_diropres   *resp)
+nfsd_proc_create(struct svc_rqst *rqstp)
 {
+	struct nfsd_createargs *argp = rqstp->rq_argp;
+	struct nfsd_diropres *resp = rqstp->rq_resp;
 	svc_fh		*dirfhp = &argp->fh;
 	svc_fh		*newfhp = &resp->fh;
 	struct iattr	*attr = &argp->attrs;
@@ -377,9 +384,9 @@ done:
 }
 
 static __be32
-nfsd_proc_remove(struct svc_rqst *rqstp, struct nfsd_diropargs *argp,
-					 void		       *resp)
+nfsd_proc_remove(struct svc_rqst *rqstp)
 {
+	struct nfsd_diropargs *argp = rqstp->rq_argp;
 	__be32	nfserr;
 
 	dprintk("nfsd: REMOVE   %s %.*s\n", SVCFH_fmt(&argp->fh),
@@ -392,9 +399,9 @@ nfsd_proc_remove(struct svc_rqst *rqstp, struct nfsd_diropargs *argp,
 }
 
 static __be32
-nfsd_proc_rename(struct svc_rqst *rqstp, struct nfsd_renameargs *argp,
-				  	 void		        *resp)
+nfsd_proc_rename(struct svc_rqst *rqstp)
 {
+	struct nfsd_renameargs *argp = rqstp->rq_argp;
 	__be32	nfserr;
 
 	dprintk("nfsd: RENAME   %s %.*s -> \n",
@@ -410,9 +417,9 @@ nfsd_proc_rename(struct svc_rqst *rqstp, struct nfsd_renameargs *argp,
 }
 
 static __be32
-nfsd_proc_link(struct svc_rqst *rqstp, struct nfsd_linkargs *argp,
-				void			    *resp)
+nfsd_proc_link(struct svc_rqst *rqstp)
 {
+	struct nfsd_linkargs *argp = rqstp->rq_argp;
 	__be32	nfserr;
 
 	dprintk("nfsd: LINK     %s ->\n",
@@ -430,9 +437,9 @@ nfsd_proc_link(struct svc_rqst *rqstp, struct nfsd_linkargs *argp,
 }
 
 static __be32
-nfsd_proc_symlink(struct svc_rqst *rqstp, struct nfsd_symlinkargs *argp,
-				          void			  *resp)
+nfsd_proc_symlink(struct svc_rqst *rqstp)
 {
+	struct nfsd_symlinkargs *argp = rqstp->rq_argp;
 	struct svc_fh	newfh;
 	__be32		nfserr;
 
@@ -460,9 +467,10 @@ nfsd_proc_symlink(struct svc_rqst *rqstp, struct nfsd_symlinkargs *argp,
  * N.B. After this call resp->fh needs an fh_put
  */
 static __be32
-nfsd_proc_mkdir(struct svc_rqst *rqstp, struct nfsd_createargs *argp,
-					struct nfsd_diropres   *resp)
+nfsd_proc_mkdir(struct svc_rqst *rqstp)
 {
+	struct nfsd_createargs *argp = rqstp->rq_argp;
+	struct nfsd_diropres *resp = rqstp->rq_resp;
 	__be32	nfserr;
 
 	dprintk("nfsd: MKDIR    %s %.*s\n", SVCFH_fmt(&argp->fh), argp->len, argp->name);
@@ -484,9 +492,9 @@ nfsd_proc_mkdir(struct svc_rqst *rqstp, struct nfsd_createargs *argp,
  * Remove a directory
  */
 static __be32
-nfsd_proc_rmdir(struct svc_rqst *rqstp, struct nfsd_diropargs *argp,
-				 	void		      *resp)
+nfsd_proc_rmdir(struct svc_rqst *rqstp)
 {
+	struct nfsd_diropargs *argp = rqstp->rq_argp;
 	__be32	nfserr;
 
 	dprintk("nfsd: RMDIR    %s %.*s\n", SVCFH_fmt(&argp->fh), argp->len, argp->name);
@@ -500,9 +508,10 @@ nfsd_proc_rmdir(struct svc_rqst *rqstp, struct nfsd_diropargs *argp,
  * Read a portion of a directory.
  */
 static __be32
-nfsd_proc_readdir(struct svc_rqst *rqstp, struct nfsd_readdirargs *argp,
-					  struct nfsd_readdirres  *resp)
+nfsd_proc_readdir(struct svc_rqst *rqstp)
 {
+	struct nfsd_readdirargs *argp = rqstp->rq_argp;
+	struct nfsd_readdirres *resp = rqstp->rq_resp;
 	int		count;
 	__be32		nfserr;
 	loff_t		offset;
@@ -540,9 +549,10 @@ nfsd_proc_readdir(struct svc_rqst *rqstp, struct nfsd_readdirargs *argp,
  * Get file system info
  */
 static __be32
-nfsd_proc_statfs(struct svc_rqst * rqstp, struct nfsd_fhandle   *argp,
-					  struct nfsd_statfsres *resp)
+nfsd_proc_statfs(struct svc_rqst *rqstp)
 {
+	struct nfsd_fhandle *argp = rqstp->rq_argp;
+	struct nfsd_statfsres *resp = rqstp->rq_resp;
 	__be32	nfserr;
 
 	dprintk("nfsd: STATFS   %s\n", SVCFH_fmt(&argp->fh));
@@ -563,168 +573,168 @@ struct nfsd_void { int dummy; };
 #define FH 8		/* filehandle */
 #define	AT 18		/* attributes */
 
-static struct svc_procedure		nfsd_procedures2[18] = {
+static const struct svc_procedure nfsd_procedures2[18] = {
 	[NFSPROC_NULL] = {
-		.pc_func = (svc_procfunc) nfsd_proc_null,
-		.pc_decode = (kxdrproc_t) nfssvc_decode_void,
-		.pc_encode = (kxdrproc_t) nfssvc_encode_void,
+		.pc_func = nfsd_proc_null,
+		.pc_decode = nfssvc_decode_void,
+		.pc_encode = nfssvc_encode_void,
 		.pc_argsize = sizeof(struct nfsd_void),
 		.pc_ressize = sizeof(struct nfsd_void),
 		.pc_cachetype = RC_NOCACHE,
 		.pc_xdrressize = ST,
 	},
 	[NFSPROC_GETATTR] = {
-		.pc_func = (svc_procfunc) nfsd_proc_getattr,
-		.pc_decode = (kxdrproc_t) nfssvc_decode_fhandle,
-		.pc_encode = (kxdrproc_t) nfssvc_encode_attrstat,
-		.pc_release = (kxdrproc_t) nfssvc_release_fhandle,
+		.pc_func = nfsd_proc_getattr,
+		.pc_decode = nfssvc_decode_fhandle,
+		.pc_encode = nfssvc_encode_attrstat,
+		.pc_release = nfssvc_release_fhandle,
 		.pc_argsize = sizeof(struct nfsd_fhandle),
 		.pc_ressize = sizeof(struct nfsd_attrstat),
 		.pc_cachetype = RC_NOCACHE,
 		.pc_xdrressize = ST+AT,
 	},
 	[NFSPROC_SETATTR] = {
-		.pc_func = (svc_procfunc) nfsd_proc_setattr,
-		.pc_decode = (kxdrproc_t) nfssvc_decode_sattrargs,
-		.pc_encode = (kxdrproc_t) nfssvc_encode_attrstat,
-		.pc_release = (kxdrproc_t) nfssvc_release_fhandle,
+		.pc_func = nfsd_proc_setattr,
+		.pc_decode = nfssvc_decode_sattrargs,
+		.pc_encode = nfssvc_encode_attrstat,
+		.pc_release = nfssvc_release_fhandle,
 		.pc_argsize = sizeof(struct nfsd_sattrargs),
 		.pc_ressize = sizeof(struct nfsd_attrstat),
 		.pc_cachetype = RC_REPLBUFF,
 		.pc_xdrressize = ST+AT,
 	},
 	[NFSPROC_ROOT] = {
-		.pc_decode = (kxdrproc_t) nfssvc_decode_void,
-		.pc_encode = (kxdrproc_t) nfssvc_encode_void,
+		.pc_decode = nfssvc_decode_void,
+		.pc_encode = nfssvc_encode_void,
 		.pc_argsize = sizeof(struct nfsd_void),
 		.pc_ressize = sizeof(struct nfsd_void),
 		.pc_cachetype = RC_NOCACHE,
 		.pc_xdrressize = ST,
 	},
 	[NFSPROC_LOOKUP] = {
-		.pc_func = (svc_procfunc) nfsd_proc_lookup,
-		.pc_decode = (kxdrproc_t) nfssvc_decode_diropargs,
-		.pc_encode = (kxdrproc_t) nfssvc_encode_diropres,
-		.pc_release = (kxdrproc_t) nfssvc_release_fhandle,
+		.pc_func = nfsd_proc_lookup,
+		.pc_decode = nfssvc_decode_diropargs,
+		.pc_encode = nfssvc_encode_diropres,
+		.pc_release = nfssvc_release_fhandle,
 		.pc_argsize = sizeof(struct nfsd_diropargs),
 		.pc_ressize = sizeof(struct nfsd_diropres),
 		.pc_cachetype = RC_NOCACHE,
 		.pc_xdrressize = ST+FH+AT,
 	},
 	[NFSPROC_READLINK] = {
-		.pc_func = (svc_procfunc) nfsd_proc_readlink,
-		.pc_decode = (kxdrproc_t) nfssvc_decode_readlinkargs,
-		.pc_encode = (kxdrproc_t) nfssvc_encode_readlinkres,
+		.pc_func = nfsd_proc_readlink,
+		.pc_decode = nfssvc_decode_readlinkargs,
+		.pc_encode = nfssvc_encode_readlinkres,
 		.pc_argsize = sizeof(struct nfsd_readlinkargs),
 		.pc_ressize = sizeof(struct nfsd_readlinkres),
 		.pc_cachetype = RC_NOCACHE,
 		.pc_xdrressize = ST+1+NFS_MAXPATHLEN/4,
 	},
 	[NFSPROC_READ] = {
-		.pc_func = (svc_procfunc) nfsd_proc_read,
-		.pc_decode = (kxdrproc_t) nfssvc_decode_readargs,
-		.pc_encode = (kxdrproc_t) nfssvc_encode_readres,
-		.pc_release = (kxdrproc_t) nfssvc_release_fhandle,
+		.pc_func = nfsd_proc_read,
+		.pc_decode = nfssvc_decode_readargs,
+		.pc_encode = nfssvc_encode_readres,
+		.pc_release = nfssvc_release_fhandle,
 		.pc_argsize = sizeof(struct nfsd_readargs),
 		.pc_ressize = sizeof(struct nfsd_readres),
 		.pc_cachetype = RC_NOCACHE,
 		.pc_xdrressize = ST+AT+1+NFSSVC_MAXBLKSIZE_V2/4,
 	},
 	[NFSPROC_WRITECACHE] = {
-		.pc_decode = (kxdrproc_t) nfssvc_decode_void,
-		.pc_encode = (kxdrproc_t) nfssvc_encode_void,
+		.pc_decode = nfssvc_decode_void,
+		.pc_encode = nfssvc_encode_void,
 		.pc_argsize = sizeof(struct nfsd_void),
 		.pc_ressize = sizeof(struct nfsd_void),
 		.pc_cachetype = RC_NOCACHE,
 		.pc_xdrressize = ST,
 	},
 	[NFSPROC_WRITE] = {
-		.pc_func = (svc_procfunc) nfsd_proc_write,
-		.pc_decode = (kxdrproc_t) nfssvc_decode_writeargs,
-		.pc_encode = (kxdrproc_t) nfssvc_encode_attrstat,
-		.pc_release = (kxdrproc_t) nfssvc_release_fhandle,
+		.pc_func = nfsd_proc_write,
+		.pc_decode = nfssvc_decode_writeargs,
+		.pc_encode = nfssvc_encode_attrstat,
+		.pc_release = nfssvc_release_fhandle,
 		.pc_argsize = sizeof(struct nfsd_writeargs),
 		.pc_ressize = sizeof(struct nfsd_attrstat),
 		.pc_cachetype = RC_REPLBUFF,
 		.pc_xdrressize = ST+AT,
 	},
 	[NFSPROC_CREATE] = {
-		.pc_func = (svc_procfunc) nfsd_proc_create,
-		.pc_decode = (kxdrproc_t) nfssvc_decode_createargs,
-		.pc_encode = (kxdrproc_t) nfssvc_encode_diropres,
-		.pc_release = (kxdrproc_t) nfssvc_release_fhandle,
+		.pc_func = nfsd_proc_create,
+		.pc_decode = nfssvc_decode_createargs,
+		.pc_encode = nfssvc_encode_diropres,
+		.pc_release = nfssvc_release_fhandle,
 		.pc_argsize = sizeof(struct nfsd_createargs),
 		.pc_ressize = sizeof(struct nfsd_diropres),
 		.pc_cachetype = RC_REPLBUFF,
 		.pc_xdrressize = ST+FH+AT,
 	},
 	[NFSPROC_REMOVE] = {
-		.pc_func = (svc_procfunc) nfsd_proc_remove,
-		.pc_decode = (kxdrproc_t) nfssvc_decode_diropargs,
-		.pc_encode = (kxdrproc_t) nfssvc_encode_void,
+		.pc_func = nfsd_proc_remove,
+		.pc_decode = nfssvc_decode_diropargs,
+		.pc_encode = nfssvc_encode_void,
 		.pc_argsize = sizeof(struct nfsd_diropargs),
 		.pc_ressize = sizeof(struct nfsd_void),
 		.pc_cachetype = RC_REPLSTAT,
 		.pc_xdrressize = ST,
 	},
 	[NFSPROC_RENAME] = {
-		.pc_func = (svc_procfunc) nfsd_proc_rename,
-		.pc_decode = (kxdrproc_t) nfssvc_decode_renameargs,
-		.pc_encode = (kxdrproc_t) nfssvc_encode_void,
+		.pc_func = nfsd_proc_rename,
+		.pc_decode = nfssvc_decode_renameargs,
+		.pc_encode = nfssvc_encode_void,
 		.pc_argsize = sizeof(struct nfsd_renameargs),
 		.pc_ressize = sizeof(struct nfsd_void),
 		.pc_cachetype = RC_REPLSTAT,
 		.pc_xdrressize = ST,
 	},
 	[NFSPROC_LINK] = {
-		.pc_func = (svc_procfunc) nfsd_proc_link,
-		.pc_decode = (kxdrproc_t) nfssvc_decode_linkargs,
-		.pc_encode = (kxdrproc_t) nfssvc_encode_void,
+		.pc_func = nfsd_proc_link,
+		.pc_decode = nfssvc_decode_linkargs,
+		.pc_encode = nfssvc_encode_void,
 		.pc_argsize = sizeof(struct nfsd_linkargs),
 		.pc_ressize = sizeof(struct nfsd_void),
 		.pc_cachetype = RC_REPLSTAT,
 		.pc_xdrressize = ST,
 	},
 	[NFSPROC_SYMLINK] = {
-		.pc_func = (svc_procfunc) nfsd_proc_symlink,
-		.pc_decode = (kxdrproc_t) nfssvc_decode_symlinkargs,
-		.pc_encode = (kxdrproc_t) nfssvc_encode_void,
+		.pc_func = nfsd_proc_symlink,
+		.pc_decode = nfssvc_decode_symlinkargs,
+		.pc_encode = nfssvc_encode_void,
 		.pc_argsize = sizeof(struct nfsd_symlinkargs),
 		.pc_ressize = sizeof(struct nfsd_void),
 		.pc_cachetype = RC_REPLSTAT,
 		.pc_xdrressize = ST,
 	},
 	[NFSPROC_MKDIR] = {
-		.pc_func = (svc_procfunc) nfsd_proc_mkdir,
-		.pc_decode = (kxdrproc_t) nfssvc_decode_createargs,
-		.pc_encode = (kxdrproc_t) nfssvc_encode_diropres,
-		.pc_release = (kxdrproc_t) nfssvc_release_fhandle,
+		.pc_func = nfsd_proc_mkdir,
+		.pc_decode = nfssvc_decode_createargs,
+		.pc_encode = nfssvc_encode_diropres,
+		.pc_release = nfssvc_release_fhandle,
 		.pc_argsize = sizeof(struct nfsd_createargs),
 		.pc_ressize = sizeof(struct nfsd_diropres),
 		.pc_cachetype = RC_REPLBUFF,
 		.pc_xdrressize = ST+FH+AT,
 	},
 	[NFSPROC_RMDIR] = {
-		.pc_func = (svc_procfunc) nfsd_proc_rmdir,
-		.pc_decode = (kxdrproc_t) nfssvc_decode_diropargs,
-		.pc_encode = (kxdrproc_t) nfssvc_encode_void,
+		.pc_func = nfsd_proc_rmdir,
+		.pc_decode = nfssvc_decode_diropargs,
+		.pc_encode = nfssvc_encode_void,
 		.pc_argsize = sizeof(struct nfsd_diropargs),
 		.pc_ressize = sizeof(struct nfsd_void),
 		.pc_cachetype = RC_REPLSTAT,
 		.pc_xdrressize = ST,
 	},
 	[NFSPROC_READDIR] = {
-		.pc_func = (svc_procfunc) nfsd_proc_readdir,
-		.pc_decode = (kxdrproc_t) nfssvc_decode_readdirargs,
-		.pc_encode = (kxdrproc_t) nfssvc_encode_readdirres,
+		.pc_func = nfsd_proc_readdir,
+		.pc_decode = nfssvc_decode_readdirargs,
+		.pc_encode = nfssvc_encode_readdirres,
 		.pc_argsize = sizeof(struct nfsd_readdirargs),
 		.pc_ressize = sizeof(struct nfsd_readdirres),
 		.pc_cachetype = RC_NOCACHE,
 	},
 	[NFSPROC_STATFS] = {
-		.pc_func = (svc_procfunc) nfsd_proc_statfs,
-		.pc_decode = (kxdrproc_t) nfssvc_decode_fhandle,
-		.pc_encode = (kxdrproc_t) nfssvc_encode_statfsres,
+		.pc_func = nfsd_proc_statfs,
+		.pc_decode = nfssvc_decode_fhandle,
+		.pc_encode = nfssvc_encode_statfsres,
 		.pc_argsize = sizeof(struct nfsd_fhandle),
 		.pc_ressize = sizeof(struct nfsd_statfsres),
 		.pc_cachetype = RC_NOCACHE,
@@ -733,12 +743,14 @@ static struct svc_procedure		nfsd_procedures2[18] = {
 };
 
 
-struct svc_version	nfsd_version2 = {
-		.vs_vers	= 2,
-		.vs_nproc	= 18,
-		.vs_proc	= nfsd_procedures2,
-		.vs_dispatch	= nfsd_dispatch,
-		.vs_xdrsize	= NFS2_SVC_XDRSIZE,
+static unsigned int nfsd_count2[ARRAY_SIZE(nfsd_procedures2)];
+const struct svc_version nfsd_version2 = {
+	.vs_vers	= 2,
+	.vs_nproc	= 18,
+	.vs_proc	= nfsd_procedures2,
+	.vs_count	= nfsd_count2,
+	.vs_dispatch	= nfsd_dispatch,
+	.vs_xdrsize	= NFS2_SVC_XDRSIZE,
 };
 
 /*
diff --git a/fs/nfsd/nfssvc.c b/fs/nfsd/nfssvc.c
index 59979f0bbd4b..063ae7de2c12 100644
--- a/fs/nfsd/nfssvc.c
+++ b/fs/nfsd/nfssvc.c
@@ -68,14 +68,14 @@ unsigned long	nfsd_drc_mem_used;
 
 #if defined(CONFIG_NFSD_V2_ACL) || defined(CONFIG_NFSD_V3_ACL)
 static struct svc_stat	nfsd_acl_svcstats;
-static struct svc_version *	nfsd_acl_version[] = {
+static const struct svc_version *nfsd_acl_version[] = {
 	[2] = &nfsd_acl_version2,
 	[3] = &nfsd_acl_version3,
 };
 
 #define NFSD_ACL_MINVERS            2
 #define NFSD_ACL_NRVERS		ARRAY_SIZE(nfsd_acl_version)
-static struct svc_version *nfsd_acl_versions[NFSD_ACL_NRVERS];
+static const struct svc_version *nfsd_acl_versions[NFSD_ACL_NRVERS];
 
 static struct svc_program	nfsd_acl_program = {
 	.pg_prog		= NFS_ACL_PROGRAM,
@@ -92,7 +92,7 @@ static struct svc_stat	nfsd_acl_svcstats = {
 };
 #endif /* defined(CONFIG_NFSD_V2_ACL) || defined(CONFIG_NFSD_V3_ACL) */
 
-static struct svc_version *	nfsd_version[] = {
+static const struct svc_version *nfsd_version[] = {
 	[2] = &nfsd_version2,
 #if defined(CONFIG_NFSD_V3)
 	[3] = &nfsd_version3,
@@ -104,7 +104,7 @@ static struct svc_version *	nfsd_version[] = {
 
 #define NFSD_MINVERS    	2
 #define NFSD_NRVERS		ARRAY_SIZE(nfsd_version)
-static struct svc_version *nfsd_versions[NFSD_NRVERS];
+static const struct svc_version *nfsd_versions[NFSD_NRVERS];
 
 struct svc_program		nfsd_program = {
 #if defined(CONFIG_NFSD_V2_ACL) || defined(CONFIG_NFSD_V3_ACL)
@@ -756,7 +756,7 @@ static __be32 map_new_errors(u32 vers, __be32 nfserr)
  * problem, we enforce these assumptions here:
  */
 static bool nfs_request_too_big(struct svc_rqst *rqstp,
-				struct svc_procedure *proc)
+				const struct svc_procedure *proc)
 {
 	/*
 	 * The ACL code has more careful bounds-checking and is not
@@ -781,8 +781,7 @@ static bool nfs_request_too_big(struct svc_rqst *rqstp,
 int
 nfsd_dispatch(struct svc_rqst *rqstp, __be32 *statp)
 {
-	struct svc_procedure	*proc;
-	kxdrproc_t		xdr;
+	const struct svc_procedure *proc;
 	__be32			nfserr;
 	__be32			*nfserrp;
 
@@ -801,9 +800,8 @@ nfsd_dispatch(struct svc_rqst *rqstp, __be32 *statp)
 	 */
 	rqstp->rq_cachetype = proc->pc_cachetype;
 	/* Decode arguments */
-	xdr = proc->pc_decode;
-	if (xdr && !xdr(rqstp, (__be32*)rqstp->rq_arg.head[0].iov_base,
-			rqstp->rq_argp)) {
+	if (proc->pc_decode &&
+	    !proc->pc_decode(rqstp, (__be32*)rqstp->rq_arg.head[0].iov_base)) {
 		dprintk("nfsd: failed to decode arguments!\n");
 		*statp = rpc_garbage_args;
 		return 1;
@@ -827,7 +825,7 @@ nfsd_dispatch(struct svc_rqst *rqstp, __be32 *statp)
 	rqstp->rq_res.head[0].iov_len += sizeof(__be32);
 
 	/* Now call the procedure handler, and encode NFS status. */
-	nfserr = proc->pc_func(rqstp, rqstp->rq_argp, rqstp->rq_resp);
+	nfserr = proc->pc_func(rqstp);
 	nfserr = map_new_errors(rqstp->rq_vers, nfserr);
 	if (nfserr == nfserr_dropit || test_bit(RQ_DROPME, &rqstp->rq_flags)) {
 		dprintk("nfsd: Dropping request; may be revisited later\n");
@@ -842,9 +840,7 @@ nfsd_dispatch(struct svc_rqst *rqstp, __be32 *statp)
 	 * For NFSv2, additional info is never returned in case of an error.
 	 */
 	if (!(nfserr && rqstp->rq_vers == 2)) {
-		xdr = proc->pc_encode;
-		if (xdr && !xdr(rqstp, nfserrp,
-				rqstp->rq_resp)) {
+		if (proc->pc_encode && !proc->pc_encode(rqstp, nfserrp)) {
 			/* Failed to encode result. Release cache entry */
 			dprintk("nfsd: failed to encode result!\n");
 			nfsd_cache_update(rqstp, RC_NOCACHE, NULL);
diff --git a/fs/nfsd/nfsxdr.c b/fs/nfsd/nfsxdr.c
index de07ff625777..e4da2717982d 100644
--- a/fs/nfsd/nfsxdr.c
+++ b/fs/nfsd/nfsxdr.c
@@ -206,14 +206,16 @@ __be32 *nfs2svc_encode_fattr(struct svc_rqst *rqstp, __be32 *p, struct svc_fh *f
  * XDR decode functions
  */
 int
-nfssvc_decode_void(struct svc_rqst *rqstp, __be32 *p, void *dummy)
+nfssvc_decode_void(struct svc_rqst *rqstp, __be32 *p)
 {
 	return xdr_argsize_check(rqstp, p);
 }
 
 int
-nfssvc_decode_fhandle(struct svc_rqst *rqstp, __be32 *p, struct nfsd_fhandle *args)
+nfssvc_decode_fhandle(struct svc_rqst *rqstp, __be32 *p)
 {
+	struct nfsd_fhandle *args = rqstp->rq_argp;
+
 	p = decode_fh(p, &args->fh);
 	if (!p)
 		return 0;
@@ -221,9 +223,10 @@ nfssvc_decode_fhandle(struct svc_rqst *rqstp, __be32 *p, struct nfsd_fhandle *ar
 }
 
 int
-nfssvc_decode_sattrargs(struct svc_rqst *rqstp, __be32 *p,
-					struct nfsd_sattrargs *args)
+nfssvc_decode_sattrargs(struct svc_rqst *rqstp, __be32 *p)
 {
+	struct nfsd_sattrargs *args = rqstp->rq_argp;
+
 	p = decode_fh(p, &args->fh);
 	if (!p)
 		return 0;
@@ -233,9 +236,10 @@ nfssvc_decode_sattrargs(struct svc_rqst *rqstp, __be32 *p,
 }
 
 int
-nfssvc_decode_diropargs(struct svc_rqst *rqstp, __be32 *p,
-					struct nfsd_diropargs *args)
+nfssvc_decode_diropargs(struct svc_rqst *rqstp, __be32 *p)
 {
+	struct nfsd_diropargs *args = rqstp->rq_argp;
+
 	if (!(p = decode_fh(p, &args->fh))
 	 || !(p = decode_filename(p, &args->name, &args->len)))
 		return 0;
@@ -244,9 +248,9 @@ nfssvc_decode_diropargs(struct svc_rqst *rqstp, __be32 *p,
 }
 
 int
-nfssvc_decode_readargs(struct svc_rqst *rqstp, __be32 *p,
-					struct nfsd_readargs *args)
+nfssvc_decode_readargs(struct svc_rqst *rqstp, __be32 *p)
 {
+	struct nfsd_readargs *args = rqstp->rq_argp;
 	unsigned int len;
 	int v;
 	p = decode_fh(p, &args->fh);
@@ -276,9 +280,9 @@ nfssvc_decode_readargs(struct svc_rqst *rqstp, __be32 *p,
 }
 
 int
-nfssvc_decode_writeargs(struct svc_rqst *rqstp, __be32 *p,
-					struct nfsd_writeargs *args)
+nfssvc_decode_writeargs(struct svc_rqst *rqstp, __be32 *p)
 {
+	struct nfsd_writeargs *args = rqstp->rq_argp;
 	unsigned int len, hdr, dlen;
 	struct kvec *head = rqstp->rq_arg.head;
 	int v;
@@ -332,9 +336,10 @@ nfssvc_decode_writeargs(struct svc_rqst *rqstp, __be32 *p,
 }
 
 int
-nfssvc_decode_createargs(struct svc_rqst *rqstp, __be32 *p,
-					struct nfsd_createargs *args)
+nfssvc_decode_createargs(struct svc_rqst *rqstp, __be32 *p)
 {
+	struct nfsd_createargs *args = rqstp->rq_argp;
+
 	if (   !(p = decode_fh(p, &args->fh))
 	    || !(p = decode_filename(p, &args->name, &args->len)))
 		return 0;
@@ -344,9 +349,10 @@ nfssvc_decode_createargs(struct svc_rqst *rqstp, __be32 *p,
 }
 
 int
-nfssvc_decode_renameargs(struct svc_rqst *rqstp, __be32 *p,
-					struct nfsd_renameargs *args)
+nfssvc_decode_renameargs(struct svc_rqst *rqstp, __be32 *p)
 {
+	struct nfsd_renameargs *args = rqstp->rq_argp;
+
 	if (!(p = decode_fh(p, &args->ffh))
 	 || !(p = decode_filename(p, &args->fname, &args->flen))
 	 || !(p = decode_fh(p, &args->tfh))
@@ -357,8 +363,10 @@ nfssvc_decode_renameargs(struct svc_rqst *rqstp, __be32 *p,
 }
 
 int
-nfssvc_decode_readlinkargs(struct svc_rqst *rqstp, __be32 *p, struct nfsd_readlinkargs *args)
+nfssvc_decode_readlinkargs(struct svc_rqst *rqstp, __be32 *p)
 {
+	struct nfsd_readlinkargs *args = rqstp->rq_argp;
+
 	p = decode_fh(p, &args->fh);
 	if (!p)
 		return 0;
@@ -368,9 +376,10 @@ nfssvc_decode_readlinkargs(struct svc_rqst *rqstp, __be32 *p, struct nfsd_readli
 }
 
 int
-nfssvc_decode_linkargs(struct svc_rqst *rqstp, __be32 *p,
-					struct nfsd_linkargs *args)
+nfssvc_decode_linkargs(struct svc_rqst *rqstp, __be32 *p)
 {
+	struct nfsd_linkargs *args = rqstp->rq_argp;
+
 	if (!(p = decode_fh(p, &args->ffh))
 	 || !(p = decode_fh(p, &args->tfh))
 	 || !(p = decode_filename(p, &args->tname, &args->tlen)))
@@ -380,9 +389,10 @@ nfssvc_decode_linkargs(struct svc_rqst *rqstp, __be32 *p,
 }
 
 int
-nfssvc_decode_symlinkargs(struct svc_rqst *rqstp, __be32 *p,
-					struct nfsd_symlinkargs *args)
+nfssvc_decode_symlinkargs(struct svc_rqst *rqstp, __be32 *p)
 {
+	struct nfsd_symlinkargs *args = rqstp->rq_argp;
+
 	if (   !(p = decode_fh(p, &args->ffh))
 	    || !(p = decode_filename(p, &args->fname, &args->flen))
 	    || !(p = decode_pathname(p, &args->tname, &args->tlen)))
@@ -393,9 +403,10 @@ nfssvc_decode_symlinkargs(struct svc_rqst *rqstp, __be32 *p,
 }
 
 int
-nfssvc_decode_readdirargs(struct svc_rqst *rqstp, __be32 *p,
-					struct nfsd_readdirargs *args)
+nfssvc_decode_readdirargs(struct svc_rqst *rqstp, __be32 *p)
 {
+	struct nfsd_readdirargs *args = rqstp->rq_argp;
+
 	p = decode_fh(p, &args->fh);
 	if (!p)
 		return 0;
@@ -411,32 +422,35 @@ nfssvc_decode_readdirargs(struct svc_rqst *rqstp, __be32 *p,
  * XDR encode functions
  */
 int
-nfssvc_encode_void(struct svc_rqst *rqstp, __be32 *p, void *dummy)
+nfssvc_encode_void(struct svc_rqst *rqstp, __be32 *p)
 {
 	return xdr_ressize_check(rqstp, p);
 }
 
 int
-nfssvc_encode_attrstat(struct svc_rqst *rqstp, __be32 *p,
-					struct nfsd_attrstat *resp)
+nfssvc_encode_attrstat(struct svc_rqst *rqstp, __be32 *p)
 {
+	struct nfsd_attrstat *resp = rqstp->rq_resp;
+
 	p = encode_fattr(rqstp, p, &resp->fh, &resp->stat);
 	return xdr_ressize_check(rqstp, p);
 }
 
 int
-nfssvc_encode_diropres(struct svc_rqst *rqstp, __be32 *p,
-					struct nfsd_diropres *resp)
+nfssvc_encode_diropres(struct svc_rqst *rqstp, __be32 *p)
 {
+	struct nfsd_diropres *resp = rqstp->rq_resp;
+
 	p = encode_fh(p, &resp->fh);
 	p = encode_fattr(rqstp, p, &resp->fh, &resp->stat);
 	return xdr_ressize_check(rqstp, p);
 }
 
 int
-nfssvc_encode_readlinkres(struct svc_rqst *rqstp, __be32 *p,
-					struct nfsd_readlinkres *resp)
+nfssvc_encode_readlinkres(struct svc_rqst *rqstp, __be32 *p)
 {
+	struct nfsd_readlinkres *resp = rqstp->rq_resp;
+
 	*p++ = htonl(resp->len);
 	xdr_ressize_check(rqstp, p);
 	rqstp->rq_res.page_len = resp->len;
@@ -450,9 +464,10 @@ nfssvc_encode_readlinkres(struct svc_rqst *rqstp, __be32 *p,
 }
 
 int
-nfssvc_encode_readres(struct svc_rqst *rqstp, __be32 *p,
-					struct nfsd_readres *resp)
+nfssvc_encode_readres(struct svc_rqst *rqstp, __be32 *p)
 {
+	struct nfsd_readres *resp = rqstp->rq_resp;
+
 	p = encode_fattr(rqstp, p, &resp->fh, &resp->stat);
 	*p++ = htonl(resp->count);
 	xdr_ressize_check(rqstp, p);
@@ -469,9 +484,10 @@ nfssvc_encode_readres(struct svc_rqst *rqstp, __be32 *p,
 }
 
 int
-nfssvc_encode_readdirres(struct svc_rqst *rqstp, __be32 *p,
-					struct nfsd_readdirres *resp)
+nfssvc_encode_readdirres(struct svc_rqst *rqstp, __be32 *p)
 {
+	struct nfsd_readdirres *resp = rqstp->rq_resp;
+
 	xdr_ressize_check(rqstp, p);
 	p = resp->buffer;
 	*p++ = 0;			/* no more entries */
@@ -482,9 +498,9 @@ nfssvc_encode_readdirres(struct svc_rqst *rqstp, __be32 *p,
 }
 
 int
-nfssvc_encode_statfsres(struct svc_rqst *rqstp, __be32 *p,
-					struct nfsd_statfsres *resp)
+nfssvc_encode_statfsres(struct svc_rqst *rqstp, __be32 *p)
 {
+	struct nfsd_statfsres *resp = rqstp->rq_resp;
 	struct kstatfs	*stat = &resp->stats;
 
 	*p++ = htonl(NFSSVC_MAXBLKSIZE_V2);	/* max transfer size */
@@ -543,10 +559,10 @@ nfssvc_encode_entry(void *ccdv, const char *name,
 /*
  * XDR release functions
  */
-int
-nfssvc_release_fhandle(struct svc_rqst *rqstp, __be32 *p,
-					struct nfsd_fhandle *resp)
+void
+nfssvc_release_fhandle(struct svc_rqst *rqstp)
 {
+	struct nfsd_fhandle *resp = rqstp->rq_resp;
+
 	fh_put(&resp->fh);
-	return 1;
 }
diff --git a/fs/nfsd/xdr.h b/fs/nfsd/xdr.h
index 4f0481d63804..457ce45e5084 100644
--- a/fs/nfsd/xdr.h
+++ b/fs/nfsd/xdr.h
@@ -131,40 +131,30 @@ union nfsd_xdrstore {
 #define NFS2_SVC_XDRSIZE	sizeof(union nfsd_xdrstore)
 
 
-int nfssvc_decode_void(struct svc_rqst *, __be32 *, void *);
-int nfssvc_decode_fhandle(struct svc_rqst *, __be32 *, struct nfsd_fhandle *);
-int nfssvc_decode_sattrargs(struct svc_rqst *, __be32 *,
-				struct nfsd_sattrargs *);
-int nfssvc_decode_diropargs(struct svc_rqst *, __be32 *,
-				struct nfsd_diropargs *);
-int nfssvc_decode_readargs(struct svc_rqst *, __be32 *,
-				struct nfsd_readargs *);
-int nfssvc_decode_writeargs(struct svc_rqst *, __be32 *,
-				struct nfsd_writeargs *);
-int nfssvc_decode_createargs(struct svc_rqst *, __be32 *,
-				struct nfsd_createargs *);
-int nfssvc_decode_renameargs(struct svc_rqst *, __be32 *,
-				struct nfsd_renameargs *);
-int nfssvc_decode_readlinkargs(struct svc_rqst *, __be32 *,
-				struct nfsd_readlinkargs *);
-int nfssvc_decode_linkargs(struct svc_rqst *, __be32 *,
-				struct nfsd_linkargs *);
-int nfssvc_decode_symlinkargs(struct svc_rqst *, __be32 *,
-				struct nfsd_symlinkargs *);
-int nfssvc_decode_readdirargs(struct svc_rqst *, __be32 *,
-				struct nfsd_readdirargs *);
-int nfssvc_encode_void(struct svc_rqst *, __be32 *, void *);
-int nfssvc_encode_attrstat(struct svc_rqst *, __be32 *, struct nfsd_attrstat *);
-int nfssvc_encode_diropres(struct svc_rqst *, __be32 *, struct nfsd_diropres *);
-int nfssvc_encode_readlinkres(struct svc_rqst *, __be32 *, struct nfsd_readlinkres *);
-int nfssvc_encode_readres(struct svc_rqst *, __be32 *, struct nfsd_readres *);
-int nfssvc_encode_statfsres(struct svc_rqst *, __be32 *, struct nfsd_statfsres *);
-int nfssvc_encode_readdirres(struct svc_rqst *, __be32 *, struct nfsd_readdirres *);
+int nfssvc_decode_void(struct svc_rqst *, __be32 *);
+int nfssvc_decode_fhandle(struct svc_rqst *, __be32 *);
+int nfssvc_decode_sattrargs(struct svc_rqst *, __be32 *);
+int nfssvc_decode_diropargs(struct svc_rqst *, __be32 *);
+int nfssvc_decode_readargs(struct svc_rqst *, __be32 *);
+int nfssvc_decode_writeargs(struct svc_rqst *, __be32 *);
+int nfssvc_decode_createargs(struct svc_rqst *, __be32 *);
+int nfssvc_decode_renameargs(struct svc_rqst *, __be32 *);
+int nfssvc_decode_readlinkargs(struct svc_rqst *, __be32 *);
+int nfssvc_decode_linkargs(struct svc_rqst *, __be32 *);
+int nfssvc_decode_symlinkargs(struct svc_rqst *, __be32 *);
+int nfssvc_decode_readdirargs(struct svc_rqst *, __be32 *);
+int nfssvc_encode_void(struct svc_rqst *, __be32 *);
+int nfssvc_encode_attrstat(struct svc_rqst *, __be32 *);
+int nfssvc_encode_diropres(struct svc_rqst *, __be32 *);
+int nfssvc_encode_readlinkres(struct svc_rqst *, __be32 *);
+int nfssvc_encode_readres(struct svc_rqst *, __be32 *);
+int nfssvc_encode_statfsres(struct svc_rqst *, __be32 *);
+int nfssvc_encode_readdirres(struct svc_rqst *, __be32 *);
 
 int nfssvc_encode_entry(void *, const char *name,
 			int namlen, loff_t offset, u64 ino, unsigned int);
 
-int nfssvc_release_fhandle(struct svc_rqst *, __be32 *, struct nfsd_fhandle *);
+void nfssvc_release_fhandle(struct svc_rqst *);
 
 /* Helper functions for NFSv2 ACL code */
 __be32 *nfs2svc_encode_fattr(struct svc_rqst *rqstp, __be32 *p, struct svc_fh *fhp, struct kstat *stat);
diff --git a/fs/nfsd/xdr3.h b/fs/nfsd/xdr3.h
index 335e04aaf7db..80d7da620e91 100644
--- a/fs/nfsd/xdr3.h
+++ b/fs/nfsd/xdr3.h
@@ -269,71 +269,41 @@ union nfsd3_xdrstore {
 
 #define NFS3_SVC_XDRSIZE		sizeof(union nfsd3_xdrstore)
 
-int nfs3svc_decode_fhandle(struct svc_rqst *, __be32 *, struct nfsd_fhandle *);
-int nfs3svc_decode_sattrargs(struct svc_rqst *, __be32 *,
-				struct nfsd3_sattrargs *);
-int nfs3svc_decode_diropargs(struct svc_rqst *, __be32 *,
-				struct nfsd3_diropargs *);
-int nfs3svc_decode_accessargs(struct svc_rqst *, __be32 *,
-				struct nfsd3_accessargs *);
-int nfs3svc_decode_readargs(struct svc_rqst *, __be32 *,
-				struct nfsd3_readargs *);
-int nfs3svc_decode_writeargs(struct svc_rqst *, __be32 *,
-				struct nfsd3_writeargs *);
-int nfs3svc_decode_createargs(struct svc_rqst *, __be32 *,
-				struct nfsd3_createargs *);
-int nfs3svc_decode_mkdirargs(struct svc_rqst *, __be32 *,
-				struct nfsd3_createargs *);
-int nfs3svc_decode_mknodargs(struct svc_rqst *, __be32 *,
-				struct nfsd3_mknodargs *);
-int nfs3svc_decode_renameargs(struct svc_rqst *, __be32 *,
-				struct nfsd3_renameargs *);
-int nfs3svc_decode_readlinkargs(struct svc_rqst *, __be32 *,
-				struct nfsd3_readlinkargs *);
-int nfs3svc_decode_linkargs(struct svc_rqst *, __be32 *,
-				struct nfsd3_linkargs *);
-int nfs3svc_decode_symlinkargs(struct svc_rqst *, __be32 *,
-				struct nfsd3_symlinkargs *);
-int nfs3svc_decode_readdirargs(struct svc_rqst *, __be32 *,
-				struct nfsd3_readdirargs *);
-int nfs3svc_decode_readdirplusargs(struct svc_rqst *, __be32 *,
-				struct nfsd3_readdirargs *);
-int nfs3svc_decode_commitargs(struct svc_rqst *, __be32 *,
-				struct nfsd3_commitargs *);
-int nfs3svc_encode_voidres(struct svc_rqst *, __be32 *, void *);
-int nfs3svc_encode_attrstat(struct svc_rqst *, __be32 *,
-				struct nfsd3_attrstat *);
-int nfs3svc_encode_wccstat(struct svc_rqst *, __be32 *,
-				struct nfsd3_attrstat *);
-int nfs3svc_encode_diropres(struct svc_rqst *, __be32 *,
-				struct nfsd3_diropres *);
-int nfs3svc_encode_accessres(struct svc_rqst *, __be32 *,
-				struct nfsd3_accessres *);
-int nfs3svc_encode_readlinkres(struct svc_rqst *, __be32 *,
-				struct nfsd3_readlinkres *);
-int nfs3svc_encode_readres(struct svc_rqst *, __be32 *, struct nfsd3_readres *);
-int nfs3svc_encode_writeres(struct svc_rqst *, __be32 *, struct nfsd3_writeres *);
-int nfs3svc_encode_createres(struct svc_rqst *, __be32 *,
-				struct nfsd3_diropres *);
-int nfs3svc_encode_renameres(struct svc_rqst *, __be32 *,
-				struct nfsd3_renameres *);
-int nfs3svc_encode_linkres(struct svc_rqst *, __be32 *,
-				struct nfsd3_linkres *);
-int nfs3svc_encode_readdirres(struct svc_rqst *, __be32 *,
-				struct nfsd3_readdirres *);
-int nfs3svc_encode_fsstatres(struct svc_rqst *, __be32 *,
-				struct nfsd3_fsstatres *);
-int nfs3svc_encode_fsinfores(struct svc_rqst *, __be32 *,
-				struct nfsd3_fsinfores *);
-int nfs3svc_encode_pathconfres(struct svc_rqst *, __be32 *,
-				struct nfsd3_pathconfres *);
-int nfs3svc_encode_commitres(struct svc_rqst *, __be32 *,
-				struct nfsd3_commitres *);
-
-int nfs3svc_release_fhandle(struct svc_rqst *, __be32 *,
-				struct nfsd3_attrstat *);
-int nfs3svc_release_fhandle2(struct svc_rqst *, __be32 *,
-				struct nfsd3_fhandle_pair *);
+int nfs3svc_decode_fhandle(struct svc_rqst *, __be32 *);
+int nfs3svc_decode_sattrargs(struct svc_rqst *, __be32 *);
+int nfs3svc_decode_diropargs(struct svc_rqst *, __be32 *);
+int nfs3svc_decode_accessargs(struct svc_rqst *, __be32 *);
+int nfs3svc_decode_readargs(struct svc_rqst *, __be32 *);
+int nfs3svc_decode_writeargs(struct svc_rqst *, __be32 *);
+int nfs3svc_decode_createargs(struct svc_rqst *, __be32 *);
+int nfs3svc_decode_mkdirargs(struct svc_rqst *, __be32 *);
+int nfs3svc_decode_mknodargs(struct svc_rqst *, __be32 *);
+int nfs3svc_decode_renameargs(struct svc_rqst *, __be32 *);
+int nfs3svc_decode_readlinkargs(struct svc_rqst *, __be32 *);
+int nfs3svc_decode_linkargs(struct svc_rqst *, __be32 *);
+int nfs3svc_decode_symlinkargs(struct svc_rqst *, __be32 *);
+int nfs3svc_decode_readdirargs(struct svc_rqst *, __be32 *);
+int nfs3svc_decode_readdirplusargs(struct svc_rqst *, __be32 *);
+int nfs3svc_decode_commitargs(struct svc_rqst *, __be32 *);
+int nfs3svc_encode_voidres(struct svc_rqst *, __be32 *);
+int nfs3svc_encode_attrstat(struct svc_rqst *, __be32 *);
+int nfs3svc_encode_wccstat(struct svc_rqst *, __be32 *);
+int nfs3svc_encode_diropres(struct svc_rqst *, __be32 *);
+int nfs3svc_encode_accessres(struct svc_rqst *, __be32 *);
+int nfs3svc_encode_readlinkres(struct svc_rqst *, __be32 *);
+int nfs3svc_encode_readres(struct svc_rqst *, __be32 *);
+int nfs3svc_encode_writeres(struct svc_rqst *, __be32 *);
+int nfs3svc_encode_createres(struct svc_rqst *, __be32 *);
+int nfs3svc_encode_renameres(struct svc_rqst *, __be32 *);
+int nfs3svc_encode_linkres(struct svc_rqst *, __be32 *);
+int nfs3svc_encode_readdirres(struct svc_rqst *, __be32 *);
+int nfs3svc_encode_fsstatres(struct svc_rqst *, __be32 *);
+int nfs3svc_encode_fsinfores(struct svc_rqst *, __be32 *);
+int nfs3svc_encode_pathconfres(struct svc_rqst *, __be32 *);
+int nfs3svc_encode_commitres(struct svc_rqst *, __be32 *);
+
+void nfs3svc_release_fhandle(struct svc_rqst *);
+void nfs3svc_release_fhandle2(struct svc_rqst *);
 int nfs3svc_encode_entry(void *, const char *name,
 				int namlen, loff_t offset, u64 ino,
 				unsigned int);
diff --git a/fs/nfsd/xdr4.h b/fs/nfsd/xdr4.h
index 8fda4abdf3b1..72c6ad136107 100644
--- a/fs/nfsd/xdr4.h
+++ b/fs/nfsd/xdr4.h
@@ -539,7 +539,7 @@ struct nfsd4_seek {
 struct nfsd4_op {
 	int					opnum;
 	__be32					status;
-	union {
+	union nfsd4_op_u {
 		struct nfsd4_access		access;
 		struct nfsd4_close		close;
 		struct nfsd4_commit		commit;
@@ -577,6 +577,7 @@ struct nfsd4_op {
 		struct nfsd4_bind_conn_to_session bind_conn_to_session;
 		struct nfsd4_create_session	create_session;
 		struct nfsd4_destroy_session	destroy_session;
+		struct nfsd4_destroy_clientid	destroy_clientid;
 		struct nfsd4_sequence		sequence;
 		struct nfsd4_reclaim_complete	reclaim_complete;
 		struct nfsd4_test_stateid	test_stateid;
@@ -585,6 +586,7 @@ struct nfsd4_op {
 		struct nfsd4_layoutget		layoutget;
 		struct nfsd4_layoutcommit	layoutcommit;
 		struct nfsd4_layoutreturn	layoutreturn;
+		struct nfsd4_secinfo_no_name	secinfo_no_name;
 
 		/* NFSv4.2 */
 		struct nfsd4_fallocate		allocate;
@@ -682,11 +684,9 @@ set_change_info(struct nfsd4_change_info *cinfo, struct svc_fh *fhp)
 
 
 bool nfsd4_mach_creds_match(struct nfs4_client *cl, struct svc_rqst *rqstp);
-int nfs4svc_encode_voidres(struct svc_rqst *, __be32 *, void *);
-int nfs4svc_decode_compoundargs(struct svc_rqst *, __be32 *,
-		struct nfsd4_compoundargs *);
-int nfs4svc_encode_compoundres(struct svc_rqst *, __be32 *,
-		struct nfsd4_compoundres *);
+int nfs4svc_encode_voidres(struct svc_rqst *, __be32 *);
+int nfs4svc_decode_compoundargs(struct svc_rqst *, __be32 *);
+int nfs4svc_encode_compoundres(struct svc_rqst *, __be32 *);
 __be32 nfsd4_check_resp_size(struct nfsd4_compoundres *, u32);
 void nfsd4_encode_operation(struct nfsd4_compoundres *, struct nfsd4_op *);
 void nfsd4_encode_replay(struct xdr_stream *xdr, struct nfsd4_op *op);
@@ -695,27 +695,26 @@ __be32 nfsd4_encode_fattr_to_buf(__be32 **p, int words,
 		struct dentry *dentry,
 		u32 *bmval, struct svc_rqst *, int ignore_crossmnt);
 extern __be32 nfsd4_setclientid(struct svc_rqst *rqstp,
-		struct nfsd4_compound_state *,
-		struct nfsd4_setclientid *setclid);
+		struct nfsd4_compound_state *, union nfsd4_op_u *u);
 extern __be32 nfsd4_setclientid_confirm(struct svc_rqst *rqstp,
-		struct nfsd4_compound_state *,
-		struct nfsd4_setclientid_confirm *setclientid_confirm);
+		struct nfsd4_compound_state *, union nfsd4_op_u *u);
 extern __be32 nfsd4_exchange_id(struct svc_rqst *rqstp,
-		struct nfsd4_compound_state *, struct nfsd4_exchange_id *);
-extern __be32 nfsd4_backchannel_ctl(struct svc_rqst *, struct nfsd4_compound_state *, struct nfsd4_backchannel_ctl *);
-extern __be32 nfsd4_bind_conn_to_session(struct svc_rqst *, struct nfsd4_compound_state *, struct nfsd4_bind_conn_to_session *);
+		struct nfsd4_compound_state *, union nfsd4_op_u *u);
+extern __be32 nfsd4_backchannel_ctl(struct svc_rqst *,
+		struct nfsd4_compound_state *, union nfsd4_op_u *u);
+extern __be32 nfsd4_bind_conn_to_session(struct svc_rqst *,
+		struct nfsd4_compound_state *, union nfsd4_op_u *u);
 extern __be32 nfsd4_create_session(struct svc_rqst *,
-		struct nfsd4_compound_state *,
-		struct nfsd4_create_session *);
+		struct nfsd4_compound_state *, union nfsd4_op_u *u);
 extern __be32 nfsd4_sequence(struct svc_rqst *,
-		struct nfsd4_compound_state *,
-		struct nfsd4_sequence *);
+		struct nfsd4_compound_state *, union nfsd4_op_u *u);
 extern void nfsd4_sequence_done(struct nfsd4_compoundres *resp);
 extern __be32 nfsd4_destroy_session(struct svc_rqst *,
-		struct nfsd4_compound_state *,
-		struct nfsd4_destroy_session *);
-extern __be32 nfsd4_destroy_clientid(struct svc_rqst *, struct nfsd4_compound_state *, struct nfsd4_destroy_clientid *);
-__be32 nfsd4_reclaim_complete(struct svc_rqst *, struct nfsd4_compound_state *, struct nfsd4_reclaim_complete *);
+		struct nfsd4_compound_state *, union nfsd4_op_u *u);
+extern __be32 nfsd4_destroy_clientid(struct svc_rqst *, struct nfsd4_compound_state *,
+		union nfsd4_op_u *u);
+__be32 nfsd4_reclaim_complete(struct svc_rqst *, struct nfsd4_compound_state *,
+		union nfsd4_op_u *u);
 extern __be32 nfsd4_process_open1(struct nfsd4_compound_state *,
 		struct nfsd4_open *open, struct nfsd_net *nn);
 extern __be32 nfsd4_process_open2(struct svc_rqst *rqstp,
@@ -724,34 +723,29 @@ extern void nfsd4_cstate_clear_replay(struct nfsd4_compound_state *cstate);
 extern void nfsd4_cleanup_open_state(struct nfsd4_compound_state *cstate,
 		struct nfsd4_open *open);
 extern __be32 nfsd4_open_confirm(struct svc_rqst *rqstp,
-		struct nfsd4_compound_state *, struct nfsd4_open_confirm *oc);
-extern __be32 nfsd4_close(struct svc_rqst *rqstp,
-		struct nfsd4_compound_state *,
-		struct nfsd4_close *close);
+		struct nfsd4_compound_state *, union nfsd4_op_u *u);
+extern __be32 nfsd4_close(struct svc_rqst *rqstp, struct nfsd4_compound_state *,
+		union nfsd4_op_u *u);
 extern __be32 nfsd4_open_downgrade(struct svc_rqst *rqstp,
-		struct nfsd4_compound_state *,
-		struct nfsd4_open_downgrade *od);
+		struct nfsd4_compound_state *, union nfsd4_op_u *u);
 extern __be32 nfsd4_lock(struct svc_rqst *rqstp, struct nfsd4_compound_state *,
-		struct nfsd4_lock *lock);
-extern __be32 nfsd4_lockt(struct svc_rqst *rqstp,
-		struct nfsd4_compound_state *,
-		struct nfsd4_lockt *lockt);
-extern __be32 nfsd4_locku(struct svc_rqst *rqstp,
-		struct nfsd4_compound_state *,
-		struct nfsd4_locku *locku);
+		union nfsd4_op_u *u);
+extern __be32 nfsd4_lockt(struct svc_rqst *rqstp, struct nfsd4_compound_state *,
+		union nfsd4_op_u *u);
+extern __be32 nfsd4_locku(struct svc_rqst *rqstp, struct nfsd4_compound_state *,
+		union nfsd4_op_u *u);
 extern __be32
 nfsd4_release_lockowner(struct svc_rqst *rqstp,
-		struct nfsd4_compound_state *,
-		struct nfsd4_release_lockowner *rlockowner);
-extern int nfsd4_release_compoundargs(void *rq, __be32 *p, void *resp);
+		struct nfsd4_compound_state *, union nfsd4_op_u *u);
+extern void nfsd4_release_compoundargs(struct svc_rqst *rqstp);
 extern __be32 nfsd4_delegreturn(struct svc_rqst *rqstp,
-		struct nfsd4_compound_state *, struct nfsd4_delegreturn *dr);
-extern __be32 nfsd4_renew(struct svc_rqst *rqstp,
-			  struct nfsd4_compound_state *, clientid_t *clid);
+		struct nfsd4_compound_state *, union nfsd4_op_u *u);
+extern __be32 nfsd4_renew(struct svc_rqst *rqstp, struct nfsd4_compound_state *,
+		union nfsd4_op_u *u);
 extern __be32 nfsd4_test_stateid(struct svc_rqst *rqstp,
-		struct nfsd4_compound_state *, struct nfsd4_test_stateid *test_stateid);
+		struct nfsd4_compound_state *, union nfsd4_op_u *);
 extern __be32 nfsd4_free_stateid(struct svc_rqst *rqstp,
-		struct nfsd4_compound_state *, struct nfsd4_free_stateid *free_stateid);
+		struct nfsd4_compound_state *, union nfsd4_op_u *);
 extern void nfsd4_bump_seqid(struct nfsd4_compound_state *, __be32 nfserr);
 
 #endif
diff --git a/fs/nsfs.c b/fs/nsfs.c
index f3db56e83dd2..08127a2b8559 100644
--- a/fs/nsfs.c
+++ b/fs/nsfs.c
@@ -53,7 +53,6 @@ static void nsfs_evict(struct inode *inode)
 static void *__ns_get_path(struct path *path, struct ns_common *ns)
 {
 	struct vfsmount *mnt = nsfs_mnt;
-	struct qstr qname = { .name = "", };
 	struct dentry *dentry;
 	struct inode *inode;
 	unsigned long d;
@@ -85,7 +84,7 @@ slow:
 	inode->i_fop = &ns_file_operations;
 	inode->i_private = ns;
 
-	dentry = d_alloc_pseudo(mnt->mnt_sb, &qname);
+	dentry = d_alloc_pseudo(mnt->mnt_sb, &empty_name);
 	if (!dentry) {
 		iput(inode);
 		return ERR_PTR(-ENOMEM);
diff --git a/fs/ocfs2/acl.c b/fs/ocfs2/acl.c
index dc22ba8c710f..e50a387959bf 100644
--- a/fs/ocfs2/acl.c
+++ b/fs/ocfs2/acl.c
@@ -240,18 +240,6 @@ int ocfs2_set_acl(handle_t *handle,
 	switch (type) {
 	case ACL_TYPE_ACCESS:
 		name_index = OCFS2_XATTR_INDEX_POSIX_ACL_ACCESS;
-		if (acl) {
-			umode_t mode;
-
-			ret = posix_acl_update_mode(inode, &mode, &acl);
-			if (ret)
-				return ret;
-
-			ret = ocfs2_acl_set_mode(inode, di_bh,
-						 handle, mode);
-			if (ret)
-				return ret;
-		}
 		break;
 	case ACL_TYPE_DEFAULT:
 		name_index = OCFS2_XATTR_INDEX_POSIX_ACL_DEFAULT;
@@ -289,7 +277,19 @@ int ocfs2_iop_set_acl(struct inode *inode, struct posix_acl *acl, int type)
 	had_lock = ocfs2_inode_lock_tracker(inode, &bh, 1, &oh);
 	if (had_lock < 0)
 		return had_lock;
+	if (type == ACL_TYPE_ACCESS && acl) {
+		umode_t mode;
+
+		status = posix_acl_update_mode(inode, &mode, &acl);
+		if (status)
+			goto unlock;
+
+		status = ocfs2_acl_set_mode(inode, bh, NULL, mode);
+		if (status)
+			goto unlock;
+	}
 	status = ocfs2_set_acl(NULL, inode, bh, type, acl, NULL, NULL);
+unlock:
 	ocfs2_inode_unlock_tracker(inode, 1, &oh, had_lock);
 	brelse(bh);
 	return status;
diff --git a/fs/omfs/inode.c b/fs/omfs/inode.c
index 8c9034ee7383..ee14af9e26f2 100644
--- a/fs/omfs/inode.c
+++ b/fs/omfs/inode.c
@@ -13,6 +13,7 @@
 #include <linux/buffer_head.h>
 #include <linux/vmalloc.h>
 #include <linux/writeback.h>
+#include <linux/seq_file.h>
 #include <linux/crc-itu-t.h>
 #include "omfs.h"
 
@@ -290,12 +291,40 @@ static int omfs_statfs(struct dentry *dentry, struct kstatfs *buf)
 	return 0;
 }
 
+/*
+ * Display the mount options in /proc/mounts.
+ */
+static int omfs_show_options(struct seq_file *m, struct dentry *root)
+{
+	struct omfs_sb_info *sbi = OMFS_SB(root->d_sb);
+	umode_t cur_umask = current_umask();
+
+	if (!uid_eq(sbi->s_uid, current_uid()))
+		seq_printf(m, ",uid=%u",
+			   from_kuid_munged(&init_user_ns, sbi->s_uid));
+	if (!gid_eq(sbi->s_gid, current_gid()))
+		seq_printf(m, ",gid=%u",
+			   from_kgid_munged(&init_user_ns, sbi->s_gid));
+
+	if (sbi->s_dmask == sbi->s_fmask) {
+		if (sbi->s_fmask != cur_umask)
+			seq_printf(m, ",umask=%o", sbi->s_fmask);
+	} else {
+		if (sbi->s_dmask != cur_umask)
+			seq_printf(m, ",dmask=%o", sbi->s_dmask);
+		if (sbi->s_fmask != cur_umask)
+			seq_printf(m, ",fmask=%o", sbi->s_fmask);
+	}
+
+	return 0;
+}
+
 static const struct super_operations omfs_sops = {
 	.write_inode	= omfs_write_inode,
 	.evict_inode	= omfs_evict_inode,
 	.put_super	= omfs_put_super,
 	.statfs		= omfs_statfs,
-	.show_options	= generic_show_options,
+	.show_options	= omfs_show_options,
 };
 
 /*
@@ -434,8 +463,6 @@ static int omfs_fill_super(struct super_block *sb, void *data, int silent)
 	struct inode *root;
 	int ret = -EINVAL;
 
-	save_mount_options(sb, (char *) data);
-
 	sbi = kzalloc(sizeof(struct omfs_sb_info), GFP_KERNEL);
 	if (!sbi)
 		return -ENOMEM;
diff --git a/fs/orangefs/super.c b/fs/orangefs/super.c
index 5c7c273e17ec..5a1bed6c8c6a 100644
--- a/fs/orangefs/super.c
+++ b/fs/orangefs/super.c
@@ -35,6 +35,19 @@ static const match_table_t tokens = {
 
 uint64_t orangefs_features;
 
+static int orangefs_show_options(struct seq_file *m, struct dentry *root)
+{
+	struct orangefs_sb_info_s *orangefs_sb = ORANGEFS_SB(root->d_sb);
+
+	if (root->d_sb->s_flags & MS_POSIXACL)
+		seq_puts(m, ",acl");
+	if (orangefs_sb->flags & ORANGEFS_OPT_INTR)
+		seq_puts(m, ",intr");
+	if (orangefs_sb->flags & ORANGEFS_OPT_LOCAL_LOCK)
+		seq_puts(m, ",local_lock");
+	return 0;
+}
+
 static int parse_mount_options(struct super_block *sb, char *options,
 		int silent)
 {
@@ -305,7 +318,7 @@ static const struct super_operations orangefs_s_ops = {
 	.drop_inode = generic_delete_inode,
 	.statfs = orangefs_statfs,
 	.remount_fs = orangefs_remount_fs,
-	.show_options = generic_show_options,
+	.show_options = orangefs_show_options,
 };
 
 static struct dentry *orangefs_fh_to_dentry(struct super_block *sb,
diff --git a/fs/overlayfs/Kconfig b/fs/overlayfs/Kconfig
index c0c9683934b7..cbfc196e5dc5 100644
--- a/fs/overlayfs/Kconfig
+++ b/fs/overlayfs/Kconfig
@@ -23,3 +23,23 @@ config OVERLAY_FS_REDIRECT_DIR
 	  Note, that redirects are not backward compatible.  That is, mounting
 	  an overlay which has redirects on a kernel that doesn't support this
 	  feature will have unexpected results.
+
+config OVERLAY_FS_INDEX
+	bool "Overlayfs: turn on inodes index feature by default"
+	depends on OVERLAY_FS
+	help
+	  If this config option is enabled then overlay filesystems will use
+	  the inodes index dir to map lower inodes to upper inodes by default.
+	  In this case it is still possible to turn off index globally with the
+	  "index=off" module option or on a filesystem instance basis with the
+	  "index=off" mount option.
+
+	  The inodes index feature prevents breaking of lower hardlinks on copy
+	  up.
+
+	  Note, that the inodes index feature is read-only backward compatible.
+	  That is, mounting an overlay which has an index dir on a kernel that
+	  doesn't support this feature read-only, will not have any negative
+	  outcomes.  However, mounting the same overlay with an old kernel
+	  read-write and then mounting it again with a new kernel, will have
+	  unexpected results.
diff --git a/fs/overlayfs/copy_up.c b/fs/overlayfs/copy_up.c
index e5869f91b3ab..acb6f97deb97 100644
--- a/fs/overlayfs/copy_up.c
+++ b/fs/overlayfs/copy_up.c
@@ -233,12 +233,13 @@ int ovl_set_attr(struct dentry *upperdentry, struct kstat *stat)
 	return err;
 }
 
-static struct ovl_fh *ovl_encode_fh(struct dentry *lower, uuid_t *uuid)
+struct ovl_fh *ovl_encode_fh(struct dentry *lower, bool is_upper)
 {
 	struct ovl_fh *fh;
 	int fh_type, fh_len, dwords;
 	void *buf;
 	int buflen = MAX_HANDLE_SZ;
+	uuid_t *uuid = &lower->d_sb->s_uuid;
 
 	buf = kmalloc(buflen, GFP_TEMPORARY);
 	if (!buf)
@@ -271,6 +272,14 @@ static struct ovl_fh *ovl_encode_fh(struct dentry *lower, uuid_t *uuid)
 	fh->magic = OVL_FH_MAGIC;
 	fh->type = fh_type;
 	fh->flags = OVL_FH_FLAG_CPU_ENDIAN;
+	/*
+	 * When we will want to decode an overlay dentry from this handle
+	 * and all layers are on the same fs, if we get a disconncted real
+	 * dentry when we decode fid, the only way to tell if we should assign
+	 * it to upperdentry or to lowerstack is by checking this flag.
+	 */
+	if (is_upper)
+		fh->flags |= OVL_FH_FLAG_PATH_UPPER;
 	fh->len = fh_len;
 	fh->uuid = *uuid;
 	memcpy(fh->fid, buf, buflen);
@@ -283,7 +292,6 @@ out:
 static int ovl_set_origin(struct dentry *dentry, struct dentry *lower,
 			  struct dentry *upper)
 {
-	struct super_block *sb = lower->d_sb;
 	const struct ovl_fh *fh = NULL;
 	int err;
 
@@ -292,9 +300,8 @@ static int ovl_set_origin(struct dentry *dentry, struct dentry *lower,
 	 * so we can use the overlay.origin xattr to distignuish between a copy
 	 * up and a pure upper inode.
 	 */
-	if (sb->s_export_op && sb->s_export_op->fh_to_dentry &&
-	    !uuid_is_null(&sb->s_uuid)) {
-		fh = ovl_encode_fh(lower, &sb->s_uuid);
+	if (ovl_can_decode_fh(lower->d_sb)) {
+		fh = ovl_encode_fh(lower, false);
 		if (IS_ERR(fh))
 			return PTR_ERR(fh);
 	}
@@ -309,84 +316,156 @@ static int ovl_set_origin(struct dentry *dentry, struct dentry *lower,
 	return err;
 }
 
-static int ovl_copy_up_locked(struct dentry *workdir, struct dentry *upperdir,
-			      struct dentry *dentry, struct path *lowerpath,
-			      struct kstat *stat, const char *link,
-			      struct kstat *pstat, bool tmpfile)
+struct ovl_copy_up_ctx {
+	struct dentry *parent;
+	struct dentry *dentry;
+	struct path lowerpath;
+	struct kstat stat;
+	struct kstat pstat;
+	const char *link;
+	struct dentry *destdir;
+	struct qstr destname;
+	struct dentry *workdir;
+	bool tmpfile;
+	bool origin;
+};
+
+static int ovl_link_up(struct ovl_copy_up_ctx *c)
+{
+	int err;
+	struct dentry *upper;
+	struct dentry *upperdir = ovl_dentry_upper(c->parent);
+	struct inode *udir = d_inode(upperdir);
+
+	/* Mark parent "impure" because it may now contain non-pure upper */
+	err = ovl_set_impure(c->parent, upperdir);
+	if (err)
+		return err;
+
+	err = ovl_set_nlink_lower(c->dentry);
+	if (err)
+		return err;
+
+	inode_lock_nested(udir, I_MUTEX_PARENT);
+	upper = lookup_one_len(c->dentry->d_name.name, upperdir,
+			       c->dentry->d_name.len);
+	err = PTR_ERR(upper);
+	if (!IS_ERR(upper)) {
+		err = ovl_do_link(ovl_dentry_upper(c->dentry), udir, upper,
+				  true);
+		dput(upper);
+
+		if (!err) {
+			/* Restore timestamps on parent (best effort) */
+			ovl_set_timestamps(upperdir, &c->pstat);
+			ovl_dentry_set_upper_alias(c->dentry);
+		}
+	}
+	inode_unlock(udir);
+	ovl_set_nlink_upper(c->dentry);
+
+	return err;
+}
+
+static int ovl_install_temp(struct ovl_copy_up_ctx *c, struct dentry *temp,
+			    struct dentry **newdentry)
 {
-	struct inode *wdir = workdir->d_inode;
-	struct inode *udir = upperdir->d_inode;
-	struct dentry *newdentry = NULL;
-	struct dentry *upper = NULL;
-	struct dentry *temp = NULL;
 	int err;
+	struct dentry *upper;
+	struct inode *udir = d_inode(c->destdir);
+
+	upper = lookup_one_len(c->destname.name, c->destdir, c->destname.len);
+	if (IS_ERR(upper))
+		return PTR_ERR(upper);
+
+	if (c->tmpfile)
+		err = ovl_do_link(temp, udir, upper, true);
+	else
+		err = ovl_do_rename(d_inode(c->workdir), temp, udir, upper, 0);
+
+	if (!err)
+		*newdentry = dget(c->tmpfile ? upper : temp);
+	dput(upper);
+
+	return err;
+}
+
+static int ovl_get_tmpfile(struct ovl_copy_up_ctx *c, struct dentry **tempp)
+{
+	int err;
+	struct dentry *temp;
 	const struct cred *old_creds = NULL;
 	struct cred *new_creds = NULL;
 	struct cattr cattr = {
 		/* Can't properly set mode on creation because of the umask */
-		.mode = stat->mode & S_IFMT,
-		.rdev = stat->rdev,
-		.link = link
+		.mode = c->stat.mode & S_IFMT,
+		.rdev = c->stat.rdev,
+		.link = c->link
 	};
 
-	err = security_inode_copy_up(dentry, &new_creds);
+	err = security_inode_copy_up(c->dentry, &new_creds);
 	if (err < 0)
 		goto out;
 
 	if (new_creds)
 		old_creds = override_creds(new_creds);
 
-	if (tmpfile)
-		temp = ovl_do_tmpfile(upperdir, stat->mode);
-	else
-		temp = ovl_lookup_temp(workdir);
-	err = 0;
-	if (IS_ERR(temp)) {
-		err = PTR_ERR(temp);
-		temp = NULL;
+	if (c->tmpfile) {
+		temp = ovl_do_tmpfile(c->workdir, c->stat.mode);
+		if (IS_ERR(temp))
+			goto temp_err;
+	} else {
+		temp = ovl_lookup_temp(c->workdir);
+		if (IS_ERR(temp))
+			goto temp_err;
+
+		err = ovl_create_real(d_inode(c->workdir), temp, &cattr,
+				      NULL, true);
+		if (err) {
+			dput(temp);
+			goto out;
+		}
 	}
-
-	if (!err && !tmpfile)
-		err = ovl_create_real(wdir, temp, &cattr, NULL, true);
-
+	err = 0;
+	*tempp = temp;
+out:
 	if (new_creds) {
 		revert_creds(old_creds);
 		put_cred(new_creds);
 	}
 
-	if (err)
-		goto out;
+	return err;
 
-	if (S_ISREG(stat->mode)) {
+temp_err:
+	err = PTR_ERR(temp);
+	goto out;
+}
+
+static int ovl_copy_up_inode(struct ovl_copy_up_ctx *c, struct dentry *temp)
+{
+	int err;
+
+	if (S_ISREG(c->stat.mode)) {
 		struct path upperpath;
 
-		ovl_path_upper(dentry, &upperpath);
+		ovl_path_upper(c->dentry, &upperpath);
 		BUG_ON(upperpath.dentry != NULL);
 		upperpath.dentry = temp;
 
-		if (tmpfile) {
-			inode_unlock(udir);
-			err = ovl_copy_up_data(lowerpath, &upperpath,
-					       stat->size);
-			inode_lock_nested(udir, I_MUTEX_PARENT);
-		} else {
-			err = ovl_copy_up_data(lowerpath, &upperpath,
-					       stat->size);
-		}
-
+		err = ovl_copy_up_data(&c->lowerpath, &upperpath, c->stat.size);
 		if (err)
-			goto out_cleanup;
+			return err;
 	}
 
-	err = ovl_copy_xattr(lowerpath->dentry, temp);
+	err = ovl_copy_xattr(c->lowerpath.dentry, temp);
 	if (err)
-		goto out_cleanup;
+		return err;
 
 	inode_lock(temp->d_inode);
-	err = ovl_set_attr(temp, stat);
+	err = ovl_set_attr(temp, &c->stat);
 	inode_unlock(temp->d_inode);
 	if (err)
-		goto out_cleanup;
+		return err;
 
 	/*
 	 * Store identifier of lower inode in upper inode xattr to
@@ -395,41 +474,48 @@ static int ovl_copy_up_locked(struct dentry *workdir, struct dentry *upperdir,
 	 * Don't set origin when we are breaking the association with a lower
 	 * hard link.
 	 */
-	if (S_ISDIR(stat->mode) || stat->nlink == 1) {
-		err = ovl_set_origin(dentry, lowerpath->dentry, temp);
+	if (c->origin) {
+		err = ovl_set_origin(c->dentry, c->lowerpath.dentry, temp);
 		if (err)
-			goto out_cleanup;
+			return err;
 	}
 
-	upper = lookup_one_len(dentry->d_name.name, upperdir,
-			       dentry->d_name.len);
-	if (IS_ERR(upper)) {
-		err = PTR_ERR(upper);
-		upper = NULL;
-		goto out_cleanup;
-	}
+	return 0;
+}
 
-	if (tmpfile)
-		err = ovl_do_link(temp, udir, upper, true);
-	else
-		err = ovl_do_rename(wdir, temp, udir, upper, 0);
+static int ovl_copy_up_locked(struct ovl_copy_up_ctx *c)
+{
+	struct inode *udir = c->destdir->d_inode;
+	struct dentry *newdentry = NULL;
+	struct dentry *temp = NULL;
+	int err;
+
+	err = ovl_get_tmpfile(c, &temp);
+	if (err)
+		goto out;
+
+	err = ovl_copy_up_inode(c, temp);
 	if (err)
 		goto out_cleanup;
 
-	newdentry = dget(tmpfile ? upper : temp);
-	ovl_dentry_update(dentry, newdentry);
-	ovl_inode_update(d_inode(dentry), d_inode(newdentry));
+	if (c->tmpfile) {
+		inode_lock_nested(udir, I_MUTEX_PARENT);
+		err = ovl_install_temp(c, temp, &newdentry);
+		inode_unlock(udir);
+	} else {
+		err = ovl_install_temp(c, temp, &newdentry);
+	}
+	if (err)
+		goto out_cleanup;
 
-	/* Restore timestamps on parent (best effort) */
-	ovl_set_timestamps(upperdir, pstat);
+	ovl_inode_update(d_inode(c->dentry), newdentry);
 out:
 	dput(temp);
-	dput(upper);
 	return err;
 
 out_cleanup:
-	if (!tmpfile)
-		ovl_cleanup(wdir, temp);
+	if (!c->tmpfile)
+		ovl_cleanup(d_inode(c->workdir), temp);
 	goto out;
 }
 
@@ -442,78 +528,119 @@ out_cleanup:
  * is possible that the copy up will lock the old parent.  At that point
  * the file will have already been copied up anyway.
  */
+static int ovl_do_copy_up(struct ovl_copy_up_ctx *c)
+{
+	int err;
+	struct ovl_fs *ofs = c->dentry->d_sb->s_fs_info;
+	bool indexed = false;
+
+	if (ovl_indexdir(c->dentry->d_sb) && !S_ISDIR(c->stat.mode) &&
+	    c->stat.nlink > 1)
+		indexed = true;
+
+	if (S_ISDIR(c->stat.mode) || c->stat.nlink == 1 || indexed)
+		c->origin = true;
+
+	if (indexed) {
+		c->destdir = ovl_indexdir(c->dentry->d_sb);
+		err = ovl_get_index_name(c->lowerpath.dentry, &c->destname);
+		if (err)
+			return err;
+	} else {
+		/*
+		 * Mark parent "impure" because it may now contain non-pure
+		 * upper
+		 */
+		err = ovl_set_impure(c->parent, c->destdir);
+		if (err)
+			return err;
+	}
+
+	/* Should we copyup with O_TMPFILE or with workdir? */
+	if (S_ISREG(c->stat.mode) && ofs->tmpfile) {
+		c->tmpfile = true;
+		err = ovl_copy_up_locked(c);
+	} else {
+		err = -EIO;
+		if (lock_rename(c->workdir, c->destdir) != NULL) {
+			pr_err("overlayfs: failed to lock workdir+upperdir\n");
+		} else {
+			err = ovl_copy_up_locked(c);
+			unlock_rename(c->workdir, c->destdir);
+		}
+	}
+
+	if (indexed) {
+		if (!err)
+			ovl_set_flag(OVL_INDEX, d_inode(c->dentry));
+		kfree(c->destname.name);
+	} else if (!err) {
+		struct inode *udir = d_inode(c->destdir);
+
+		/* Restore timestamps on parent (best effort) */
+		inode_lock(udir);
+		ovl_set_timestamps(c->destdir, &c->pstat);
+		inode_unlock(udir);
+
+		ovl_dentry_set_upper_alias(c->dentry);
+	}
+
+	return err;
+}
+
 static int ovl_copy_up_one(struct dentry *parent, struct dentry *dentry,
-			   struct path *lowerpath, struct kstat *stat)
+			   int flags)
 {
-	DEFINE_DELAYED_CALL(done);
-	struct dentry *workdir = ovl_workdir(dentry);
 	int err;
-	struct kstat pstat;
+	DEFINE_DELAYED_CALL(done);
 	struct path parentpath;
-	struct dentry *lowerdentry = lowerpath->dentry;
-	struct dentry *upperdir;
-	const char *link = NULL;
-	struct ovl_fs *ofs = dentry->d_sb->s_fs_info;
+	struct ovl_copy_up_ctx ctx = {
+		.parent = parent,
+		.dentry = dentry,
+		.workdir = ovl_workdir(dentry),
+	};
 
-	if (WARN_ON(!workdir))
+	if (WARN_ON(!ctx.workdir))
 		return -EROFS;
 
-	ovl_do_check_copy_up(lowerdentry);
-
-	ovl_path_upper(parent, &parentpath);
-	upperdir = parentpath.dentry;
-
-	/* Mark parent "impure" because it may now contain non-pure upper */
-	err = ovl_set_impure(parent, upperdir);
+	ovl_path_lower(dentry, &ctx.lowerpath);
+	err = vfs_getattr(&ctx.lowerpath, &ctx.stat,
+			  STATX_BASIC_STATS, AT_STATX_SYNC_AS_STAT);
 	if (err)
 		return err;
 
-	err = vfs_getattr(&parentpath, &pstat,
+	ovl_path_upper(parent, &parentpath);
+	ctx.destdir = parentpath.dentry;
+	ctx.destname = dentry->d_name;
+
+	err = vfs_getattr(&parentpath, &ctx.pstat,
 			  STATX_ATIME | STATX_MTIME, AT_STATX_SYNC_AS_STAT);
 	if (err)
 		return err;
 
-	if (S_ISLNK(stat->mode)) {
-		link = vfs_get_link(lowerdentry, &done);
-		if (IS_ERR(link))
-			return PTR_ERR(link);
-	}
-
-	/* Should we copyup with O_TMPFILE or with workdir? */
-	if (S_ISREG(stat->mode) && ofs->tmpfile) {
-		err = ovl_copy_up_start(dentry);
-		/* err < 0: interrupted, err > 0: raced with another copy-up */
-		if (unlikely(err)) {
-			pr_debug("ovl_copy_up_start(%pd2) = %i\n", dentry, err);
-			if (err > 0)
-				err = 0;
-			goto out_done;
-		}
-
-		inode_lock_nested(upperdir->d_inode, I_MUTEX_PARENT);
-		err = ovl_copy_up_locked(workdir, upperdir, dentry, lowerpath,
-					 stat, link, &pstat, true);
-		inode_unlock(upperdir->d_inode);
-		ovl_copy_up_end(dentry);
-		goto out_done;
-	}
+	/* maybe truncate regular file. this has no effect on dirs */
+	if (flags & O_TRUNC)
+		ctx.stat.size = 0;
 
-	err = -EIO;
-	if (lock_rename(workdir, upperdir) != NULL) {
-		pr_err("overlayfs: failed to lock workdir+upperdir\n");
-		goto out_unlock;
+	if (S_ISLNK(ctx.stat.mode)) {
+		ctx.link = vfs_get_link(ctx.lowerpath.dentry, &done);
+		if (IS_ERR(ctx.link))
+			return PTR_ERR(ctx.link);
 	}
-	if (ovl_dentry_upper(dentry)) {
-		/* Raced with another copy-up?  Nothing to do, then... */
-		err = 0;
-		goto out_unlock;
+	ovl_do_check_copy_up(ctx.lowerpath.dentry);
+
+	err = ovl_copy_up_start(dentry);
+	/* err < 0: interrupted, err > 0: raced with another copy-up */
+	if (unlikely(err)) {
+		if (err > 0)
+			err = 0;
+	} else {
+		if (!ovl_dentry_upper(dentry))
+			err = ovl_do_copy_up(&ctx);
+		if (!err && !ovl_dentry_has_upper_alias(dentry))
+			err = ovl_link_up(&ctx);
+		ovl_copy_up_end(dentry);
 	}
-
-	err = ovl_copy_up_locked(workdir, upperdir, dentry, lowerpath,
-				 stat, link, &pstat, false);
-out_unlock:
-	unlock_rename(workdir, upperdir);
-out_done:
 	do_delayed_call(&done);
 
 	return err;
@@ -527,11 +654,22 @@ int ovl_copy_up_flags(struct dentry *dentry, int flags)
 	while (!err) {
 		struct dentry *next;
 		struct dentry *parent;
-		struct path lowerpath;
-		struct kstat stat;
-		enum ovl_path_type type = ovl_path_type(dentry);
 
-		if (OVL_TYPE_UPPER(type))
+		/*
+		 * Check if copy-up has happened as well as for upper alias (in
+		 * case of hard links) is there.
+		 *
+		 * Both checks are lockless:
+		 *  - false negatives: will recheck under oi->lock
+		 *  - false positives:
+		 *    + ovl_dentry_upper() uses memory barriers to ensure the
+		 *      upper dentry is up-to-date
+		 *    + ovl_dentry_has_upper_alias() relies on locking of
+		 *      upper parent i_rwsem to prevent reordering copy-up
+		 *      with rename.
+		 */
+		if (ovl_dentry_upper(dentry) &&
+		    ovl_dentry_has_upper_alias(dentry))
 			break;
 
 		next = dget(dentry);
@@ -539,22 +677,14 @@ int ovl_copy_up_flags(struct dentry *dentry, int flags)
 		for (;;) {
 			parent = dget_parent(next);
 
-			type = ovl_path_type(parent);
-			if (OVL_TYPE_UPPER(type))
+			if (ovl_dentry_upper(parent))
 				break;
 
 			dput(next);
 			next = parent;
 		}
 
-		ovl_path_lower(next, &lowerpath);
-		err = vfs_getattr(&lowerpath, &stat,
-				  STATX_BASIC_STATS, AT_STATX_SYNC_AS_STAT);
-		/* maybe truncate regular file. this has no effect on dirs */
-		if (flags & O_TRUNC)
-			stat.size = 0;
-		if (!err)
-			err = ovl_copy_up_one(parent, next, &lowerpath, &stat);
+		err = ovl_copy_up_one(parent, next, flags);
 
 		dput(parent);
 		dput(next);
diff --git a/fs/overlayfs/dir.c b/fs/overlayfs/dir.c
index a63a71656e9b..48b70e6490f3 100644
--- a/fs/overlayfs/dir.c
+++ b/fs/overlayfs/dir.c
@@ -24,7 +24,7 @@ module_param_named(redirect_max, ovl_redirect_max, ushort, 0644);
 MODULE_PARM_DESC(ovl_redirect_max,
 		 "Maximum length of absolute redirect xattr value");
 
-void ovl_cleanup(struct inode *wdir, struct dentry *wdentry)
+int ovl_cleanup(struct inode *wdir, struct dentry *wdentry)
 {
 	int err;
 
@@ -39,6 +39,8 @@ void ovl_cleanup(struct inode *wdir, struct dentry *wdentry)
 		pr_err("overlayfs: cleanup of '%pd2' failed (%i)\n",
 		       wdentry, err);
 	}
+
+	return err;
 }
 
 struct dentry *ovl_lookup_temp(struct dentry *workdir)
@@ -154,12 +156,13 @@ static void ovl_instantiate(struct dentry *dentry, struct inode *inode,
 			    struct dentry *newdentry, bool hardlink)
 {
 	ovl_dentry_version_inc(dentry->d_parent);
-	ovl_dentry_update(dentry, newdentry);
+	ovl_dentry_set_upper_alias(dentry);
 	if (!hardlink) {
-		ovl_inode_update(inode, d_inode(newdentry));
+		ovl_inode_update(inode, newdentry);
 		ovl_copyattr(newdentry->d_inode, inode);
 	} else {
-		WARN_ON(ovl_inode_real(inode, NULL) != d_inode(newdentry));
+		WARN_ON(ovl_inode_real(inode) != d_inode(newdentry));
+		dput(newdentry);
 		inc_nlink(inode);
 	}
 	d_instantiate(dentry, inode);
@@ -478,17 +481,30 @@ out_cleanup:
 }
 
 static int ovl_create_or_link(struct dentry *dentry, struct inode *inode,
-			      struct cattr *attr, struct dentry *hardlink)
+			      struct cattr *attr, struct dentry *hardlink,
+			      bool origin)
 {
 	int err;
 	const struct cred *old_cred;
 	struct cred *override_cred;
+	struct dentry *parent = dentry->d_parent;
 
-	err = ovl_copy_up(dentry->d_parent);
+	err = ovl_copy_up(parent);
 	if (err)
 		return err;
 
 	old_cred = ovl_override_creds(dentry->d_sb);
+
+	/*
+	 * When linking a file with copy up origin into a new parent, mark the
+	 * new parent dir "impure".
+	 */
+	if (origin) {
+		err = ovl_set_impure(parent, ovl_dentry_upper(parent));
+		if (err)
+			goto out_revert_creds;
+	}
+
 	err = -ENOMEM;
 	override_cred = prepare_creds();
 	if (override_cred) {
@@ -547,7 +563,7 @@ static int ovl_create_object(struct dentry *dentry, int mode, dev_t rdev,
 	inode_init_owner(inode, dentry->d_parent->d_inode, mode);
 	attr.mode = inode->i_mode;
 
-	err = ovl_create_or_link(dentry, inode, &attr, NULL);
+	err = ovl_create_or_link(dentry, inode, &attr, NULL, false);
 	if (err)
 		iput(inode);
 
@@ -588,6 +604,7 @@ static int ovl_link(struct dentry *old, struct inode *newdir,
 		    struct dentry *new)
 {
 	int err;
+	bool locked = false;
 	struct inode *inode;
 
 	err = ovl_want_write(old);
@@ -598,19 +615,30 @@ static int ovl_link(struct dentry *old, struct inode *newdir,
 	if (err)
 		goto out_drop_write;
 
+	err = ovl_nlink_start(old, &locked);
+	if (err)
+		goto out_drop_write;
+
 	inode = d_inode(old);
 	ihold(inode);
 
-	err = ovl_create_or_link(new, inode, NULL, ovl_dentry_upper(old));
+	err = ovl_create_or_link(new, inode, NULL, ovl_dentry_upper(old),
+				 ovl_type_origin(old));
 	if (err)
 		iput(inode);
 
+	ovl_nlink_end(old, locked);
 out_drop_write:
 	ovl_drop_write(old);
 out:
 	return err;
 }
 
+static bool ovl_matches_upper(struct dentry *dentry, struct dentry *upper)
+{
+	return d_inode(ovl_dentry_upper(dentry)) == d_inode(upper);
+}
+
 static int ovl_remove_and_whiteout(struct dentry *dentry, bool is_dir)
 {
 	struct dentry *workdir = ovl_workdir(dentry);
@@ -646,7 +674,7 @@ static int ovl_remove_and_whiteout(struct dentry *dentry, bool is_dir)
 	err = -ESTALE;
 	if ((opaquedir && upper != opaquedir) ||
 	    (!opaquedir && ovl_dentry_upper(dentry) &&
-	     upper != ovl_dentry_upper(dentry))) {
+	     !ovl_matches_upper(dentry, upper))) {
 		goto out_dput_upper;
 	}
 
@@ -707,7 +735,7 @@ static int ovl_remove_upper(struct dentry *dentry, bool is_dir)
 
 	err = -ESTALE;
 	if ((opaquedir && upper != opaquedir) ||
-	    (!opaquedir && upper != ovl_dentry_upper(dentry)))
+	    (!opaquedir && !ovl_matches_upper(dentry, upper)))
 		goto out_dput_upper;
 
 	if (is_dir)
@@ -735,8 +763,8 @@ out:
 
 static int ovl_do_remove(struct dentry *dentry, bool is_dir)
 {
-	enum ovl_path_type type;
 	int err;
+	bool locked = false;
 	const struct cred *old_cred;
 
 	err = ovl_want_write(dentry);
@@ -747,7 +775,9 @@ static int ovl_do_remove(struct dentry *dentry, bool is_dir)
 	if (err)
 		goto out_drop_write;
 
-	type = ovl_path_type(dentry);
+	err = ovl_nlink_start(dentry, &locked);
+	if (err)
+		goto out_drop_write;
 
 	old_cred = ovl_override_creds(dentry->d_sb);
 	if (!ovl_lower_positive(dentry))
@@ -761,6 +791,7 @@ static int ovl_do_remove(struct dentry *dentry, bool is_dir)
 		else
 			drop_nlink(dentry->d_inode);
 	}
+	ovl_nlink_end(dentry, locked);
 out_drop_write:
 	ovl_drop_write(dentry);
 out:
@@ -883,6 +914,7 @@ static int ovl_rename(struct inode *olddir, struct dentry *old,
 		      unsigned int flags)
 {
 	int err;
+	bool locked = false;
 	struct dentry *old_upperdir;
 	struct dentry *new_upperdir;
 	struct dentry *olddentry;
@@ -926,6 +958,10 @@ static int ovl_rename(struct inode *olddir, struct dentry *old,
 		err = ovl_copy_up(new);
 		if (err)
 			goto out_drop_write;
+	} else {
+		err = ovl_nlink_start(new, &locked);
+		if (err)
+			goto out_drop_write;
 	}
 
 	old_cred = ovl_override_creds(old->d_sb);
@@ -985,7 +1021,7 @@ static int ovl_rename(struct inode *olddir, struct dentry *old,
 		goto out_unlock;
 
 	err = -ESTALE;
-	if (olddentry != ovl_dentry_upper(old))
+	if (!ovl_matches_upper(old, olddentry))
 		goto out_dput_old;
 
 	newdentry = lookup_one_len(new->d_name.name, new_upperdir,
@@ -998,12 +1034,12 @@ static int ovl_rename(struct inode *olddir, struct dentry *old,
 	new_opaque = ovl_dentry_is_opaque(new);
 
 	err = -ESTALE;
-	if (ovl_dentry_upper(new)) {
+	if (d_inode(new) && ovl_dentry_upper(new)) {
 		if (opaquedir) {
 			if (newdentry != opaquedir)
 				goto out_dput;
 		} else {
-			if (newdentry != ovl_dentry_upper(new))
+			if (!ovl_matches_upper(new, newdentry))
 				goto out_dput;
 		}
 	} else {
@@ -1046,6 +1082,13 @@ static int ovl_rename(struct inode *olddir, struct dentry *old,
 	if (cleanup_whiteout)
 		ovl_cleanup(old_upperdir->d_inode, newdentry);
 
+	if (overwrite && d_inode(new)) {
+		if (new_is_dir)
+			clear_nlink(d_inode(new));
+		else
+			drop_nlink(d_inode(new));
+	}
+
 	ovl_dentry_version_inc(old->d_parent);
 	ovl_dentry_version_inc(new->d_parent);
 
@@ -1057,6 +1100,7 @@ out_unlock:
 	unlock_rename(new_upperdir, old_upperdir);
 out_revert_creds:
 	revert_creds(old_cred);
+	ovl_nlink_end(new, locked);
 out_drop_write:
 	ovl_drop_write(old);
 out:
diff --git a/fs/overlayfs/inode.c b/fs/overlayfs/inode.c
index d613e2c41242..5bc71642b226 100644
--- a/fs/overlayfs/inode.c
+++ b/fs/overlayfs/inode.c
@@ -12,6 +12,7 @@
 #include <linux/cred.h>
 #include <linux/xattr.h>
 #include <linux/posix_acl.h>
+#include <linux/ratelimit.h>
 #include "overlayfs.h"
 
 int ovl_setattr(struct dentry *dentry, struct iattr *attr)
@@ -96,11 +97,15 @@ int ovl_getattr(const struct path *path, struct kstat *stat,
 
 			WARN_ON_ONCE(stat->dev != lowerstat.dev);
 			/*
-			 * Lower hardlinks are broken on copy up to different
+			 * Lower hardlinks may be broken on copy up to different
 			 * upper files, so we cannot use the lower origin st_ino
 			 * for those different files, even for the same fs case.
+			 * With inodes index enabled, it is safe to use st_ino
+			 * of an indexed hardlinked origin. The index validates
+			 * that the upper hardlink is not broken.
 			 */
-			if (is_dir || lowerstat.nlink == 1)
+			if (is_dir || lowerstat.nlink == 1 ||
+			    ovl_test_flag(OVL_INDEX, d_inode(dentry)))
 				stat->ino = lowerstat.ino;
 		}
 		stat->dev = dentry->d_sb->s_dev;
@@ -126,6 +131,15 @@ int ovl_getattr(const struct path *path, struct kstat *stat,
 	if (is_dir && OVL_TYPE_MERGE(type))
 		stat->nlink = 1;
 
+	/*
+	 * Return the overlay inode nlinks for indexed upper inodes.
+	 * Overlay inode nlink counts the union of the upper hardlinks
+	 * and non-covered lower hardlinks. It does not include the upper
+	 * index hardlink.
+	 */
+	if (!is_dir && ovl_test_flag(OVL_INDEX, d_inode(dentry)))
+		stat->nlink = dentry->d_inode->i_nlink;
+
 out:
 	revert_creds(old_cred);
 
@@ -134,8 +148,8 @@ out:
 
 int ovl_permission(struct inode *inode, int mask)
 {
-	bool is_upper;
-	struct inode *realinode = ovl_inode_real(inode, &is_upper);
+	struct inode *upperinode = ovl_inode_upper(inode);
+	struct inode *realinode = upperinode ?: ovl_inode_lower(inode);
 	const struct cred *old_cred;
 	int err;
 
@@ -154,7 +168,8 @@ int ovl_permission(struct inode *inode, int mask)
 		return err;
 
 	old_cred = ovl_override_creds(inode->i_sb);
-	if (!is_upper && !special_file(realinode->i_mode) && mask & MAY_WRITE) {
+	if (!upperinode &&
+	    !special_file(realinode->i_mode) && mask & MAY_WRITE) {
 		mask &= ~(MAY_WRITE | MAY_APPEND);
 		/* Make sure mounter can read file for copy up later */
 		mask |= MAY_READ;
@@ -187,37 +202,38 @@ bool ovl_is_private_xattr(const char *name)
 		       sizeof(OVL_XATTR_PREFIX) - 1) == 0;
 }
 
-int ovl_xattr_set(struct dentry *dentry, const char *name, const void *value,
-		  size_t size, int flags)
+int ovl_xattr_set(struct dentry *dentry, struct inode *inode, const char *name,
+		  const void *value, size_t size, int flags)
 {
 	int err;
-	struct path realpath;
-	enum ovl_path_type type = ovl_path_real(dentry, &realpath);
+	struct dentry *upperdentry = ovl_i_dentry_upper(inode);
+	struct dentry *realdentry = upperdentry ?: ovl_dentry_lower(dentry);
 	const struct cred *old_cred;
 
 	err = ovl_want_write(dentry);
 	if (err)
 		goto out;
 
-	if (!value && !OVL_TYPE_UPPER(type)) {
-		err = vfs_getxattr(realpath.dentry, name, NULL, 0);
+	if (!value && !upperdentry) {
+		err = vfs_getxattr(realdentry, name, NULL, 0);
 		if (err < 0)
 			goto out_drop_write;
 	}
 
-	err = ovl_copy_up(dentry);
-	if (err)
-		goto out_drop_write;
+	if (!upperdentry) {
+		err = ovl_copy_up(dentry);
+		if (err)
+			goto out_drop_write;
 
-	if (!OVL_TYPE_UPPER(type))
-		ovl_path_upper(dentry, &realpath);
+		realdentry = ovl_dentry_upper(dentry);
+	}
 
 	old_cred = ovl_override_creds(dentry->d_sb);
 	if (value)
-		err = vfs_setxattr(realpath.dentry, name, value, size, flags);
+		err = vfs_setxattr(realdentry, name, value, size, flags);
 	else {
 		WARN_ON(flags != XATTR_REPLACE);
-		err = vfs_removexattr(realpath.dentry, name);
+		err = vfs_removexattr(realdentry, name);
 	}
 	revert_creds(old_cred);
 
@@ -227,12 +243,13 @@ out:
 	return err;
 }
 
-int ovl_xattr_get(struct dentry *dentry, const char *name,
+int ovl_xattr_get(struct dentry *dentry, struct inode *inode, const char *name,
 		  void *value, size_t size)
 {
-	struct dentry *realdentry = ovl_dentry_real(dentry);
 	ssize_t res;
 	const struct cred *old_cred;
+	struct dentry *realdentry =
+		ovl_i_dentry_upper(inode) ?: ovl_dentry_lower(dentry);
 
 	old_cred = ovl_override_creds(dentry->d_sb);
 	res = vfs_getxattr(realdentry, name, value, size);
@@ -286,7 +303,7 @@ ssize_t ovl_listxattr(struct dentry *dentry, char *list, size_t size)
 
 struct posix_acl *ovl_get_acl(struct inode *inode, int type)
 {
-	struct inode *realinode = ovl_inode_real(inode, NULL);
+	struct inode *realinode = ovl_inode_real(inode);
 	const struct cred *old_cred;
 	struct posix_acl *acl;
 
@@ -300,13 +317,13 @@ struct posix_acl *ovl_get_acl(struct inode *inode, int type)
 	return acl;
 }
 
-static bool ovl_open_need_copy_up(int flags, enum ovl_path_type type,
-				  struct dentry *realdentry)
+static bool ovl_open_need_copy_up(struct dentry *dentry, int flags)
 {
-	if (OVL_TYPE_UPPER(type))
+	if (ovl_dentry_upper(dentry) &&
+	    ovl_dentry_has_upper_alias(dentry))
 		return false;
 
-	if (special_file(realdentry->d_inode->i_mode))
+	if (special_file(d_inode(dentry)->i_mode))
 		return false;
 
 	if (!(OPEN_FMODE(flags) & FMODE_WRITE) && !(flags & O_TRUNC))
@@ -318,11 +335,8 @@ static bool ovl_open_need_copy_up(int flags, enum ovl_path_type type,
 int ovl_open_maybe_copy_up(struct dentry *dentry, unsigned int file_flags)
 {
 	int err = 0;
-	struct path realpath;
-	enum ovl_path_type type;
 
-	type = ovl_path_real(dentry, &realpath);
-	if (ovl_open_need_copy_up(file_flags, type, realpath.dentry)) {
+	if (ovl_open_need_copy_up(dentry, file_flags)) {
 		err = ovl_want_write(dentry);
 		if (!err) {
 			err = ovl_copy_up_flags(dentry, file_flags);
@@ -440,6 +454,103 @@ static void ovl_fill_inode(struct inode *inode, umode_t mode, dev_t rdev)
 	}
 }
 
+/*
+ * With inodes index enabled, an overlay inode nlink counts the union of upper
+ * hardlinks and non-covered lower hardlinks. During the lifetime of a non-pure
+ * upper inode, the following nlink modifying operations can happen:
+ *
+ * 1. Lower hardlink copy up
+ * 2. Upper hardlink created, unlinked or renamed over
+ * 3. Lower hardlink whiteout or renamed over
+ *
+ * For the first, copy up case, the union nlink does not change, whether the
+ * operation succeeds or fails, but the upper inode nlink may change.
+ * Therefore, before copy up, we store the union nlink value relative to the
+ * lower inode nlink in the index inode xattr trusted.overlay.nlink.
+ *
+ * For the second, upper hardlink case, the union nlink should be incremented
+ * or decremented IFF the operation succeeds, aligned with nlink change of the
+ * upper inode. Therefore, before link/unlink/rename, we store the union nlink
+ * value relative to the upper inode nlink in the index inode.
+ *
+ * For the last, lower cover up case, we simplify things by preceding the
+ * whiteout or cover up with copy up. This makes sure that there is an index
+ * upper inode where the nlink xattr can be stored before the copied up upper
+ * entry is unlink.
+ */
+#define OVL_NLINK_ADD_UPPER	(1 << 0)
+
+/*
+ * On-disk format for indexed nlink:
+ *
+ * nlink relative to the upper inode - "U[+-]NUM"
+ * nlink relative to the lower inode - "L[+-]NUM"
+ */
+
+static int ovl_set_nlink_common(struct dentry *dentry,
+				struct dentry *realdentry, const char *format)
+{
+	struct inode *inode = d_inode(dentry);
+	struct inode *realinode = d_inode(realdentry);
+	char buf[13];
+	int len;
+
+	len = snprintf(buf, sizeof(buf), format,
+		       (int) (inode->i_nlink - realinode->i_nlink));
+
+	return ovl_do_setxattr(ovl_dentry_upper(dentry),
+			       OVL_XATTR_NLINK, buf, len, 0);
+}
+
+int ovl_set_nlink_upper(struct dentry *dentry)
+{
+	return ovl_set_nlink_common(dentry, ovl_dentry_upper(dentry), "U%+i");
+}
+
+int ovl_set_nlink_lower(struct dentry *dentry)
+{
+	return ovl_set_nlink_common(dentry, ovl_dentry_lower(dentry), "L%+i");
+}
+
+unsigned int ovl_get_nlink(struct dentry *lowerdentry,
+			   struct dentry *upperdentry,
+			   unsigned int fallback)
+{
+	int nlink_diff;
+	int nlink;
+	char buf[13];
+	int err;
+
+	if (!lowerdentry || !upperdentry || d_inode(lowerdentry)->i_nlink == 1)
+		return fallback;
+
+	err = vfs_getxattr(upperdentry, OVL_XATTR_NLINK, &buf, sizeof(buf) - 1);
+	if (err < 0)
+		goto fail;
+
+	buf[err] = '\0';
+	if ((buf[0] != 'L' && buf[0] != 'U') ||
+	    (buf[1] != '+' && buf[1] != '-'))
+		goto fail;
+
+	err = kstrtoint(buf + 1, 10, &nlink_diff);
+	if (err < 0)
+		goto fail;
+
+	nlink = d_inode(buf[0] == 'L' ? lowerdentry : upperdentry)->i_nlink;
+	nlink += nlink_diff;
+
+	if (nlink <= 0)
+		goto fail;
+
+	return nlink;
+
+fail:
+	pr_warn_ratelimited("overlayfs: failed to get index nlink (%pd2, err=%i)\n",
+			    upperdentry, err);
+	return fallback;
+}
+
 struct inode *ovl_new_inode(struct super_block *sb, umode_t mode, dev_t rdev)
 {
 	struct inode *inode;
@@ -453,27 +564,87 @@ struct inode *ovl_new_inode(struct super_block *sb, umode_t mode, dev_t rdev)
 
 static int ovl_inode_test(struct inode *inode, void *data)
 {
-	return ovl_inode_real(inode, NULL) == data;
+	return inode->i_private == data;
 }
 
 static int ovl_inode_set(struct inode *inode, void *data)
 {
-	inode->i_private = (void *) (((unsigned long) data) | OVL_ISUPPER_MASK);
+	inode->i_private = data;
 	return 0;
 }
 
-struct inode *ovl_get_inode(struct super_block *sb, struct inode *realinode)
+static bool ovl_verify_inode(struct inode *inode, struct dentry *lowerdentry,
+			     struct dentry *upperdentry)
+{
+	struct inode *lowerinode = lowerdentry ? d_inode(lowerdentry) : NULL;
+
+	/* Lower (origin) inode must match, even if NULL */
+	if (ovl_inode_lower(inode) != lowerinode)
+		return false;
+
+	/*
+	 * Allow non-NULL __upperdentry in inode even if upperdentry is NULL.
+	 * This happens when finding a lower alias for a copied up hard link.
+	 */
+	if (upperdentry && ovl_inode_upper(inode) != d_inode(upperdentry))
+		return false;
+
+	return true;
+}
 
+struct inode *ovl_get_inode(struct dentry *dentry, struct dentry *upperdentry)
 {
+	struct dentry *lowerdentry = ovl_dentry_lower(dentry);
+	struct inode *realinode = upperdentry ? d_inode(upperdentry) : NULL;
 	struct inode *inode;
 
-	inode = iget5_locked(sb, (unsigned long) realinode,
-			     ovl_inode_test, ovl_inode_set, realinode);
-	if (inode && inode->i_state & I_NEW) {
-		ovl_fill_inode(inode, realinode->i_mode, realinode->i_rdev);
-		set_nlink(inode, realinode->i_nlink);
-		unlock_new_inode(inode);
+	if (!realinode)
+		realinode = d_inode(lowerdentry);
+
+	if (!S_ISDIR(realinode->i_mode) &&
+	    (upperdentry || (lowerdentry && ovl_indexdir(dentry->d_sb)))) {
+		struct inode *key = d_inode(lowerdentry ?: upperdentry);
+		unsigned int nlink;
+
+		inode = iget5_locked(dentry->d_sb, (unsigned long) key,
+				     ovl_inode_test, ovl_inode_set, key);
+		if (!inode)
+			goto out_nomem;
+		if (!(inode->i_state & I_NEW)) {
+			/*
+			 * Verify that the underlying files stored in the inode
+			 * match those in the dentry.
+			 */
+			if (!ovl_verify_inode(inode, lowerdentry, upperdentry)) {
+				iput(inode);
+				inode = ERR_PTR(-ESTALE);
+				goto out;
+			}
+
+			dput(upperdentry);
+			goto out;
+		}
+
+		nlink = ovl_get_nlink(lowerdentry, upperdentry,
+				      realinode->i_nlink);
+		set_nlink(inode, nlink);
+	} else {
+		inode = new_inode(dentry->d_sb);
+		if (!inode)
+			goto out_nomem;
 	}
+	ovl_fill_inode(inode, realinode->i_mode, realinode->i_rdev);
+	ovl_inode_init(inode, upperdentry, lowerdentry);
 
+	if (upperdentry && ovl_is_impuredir(upperdentry))
+		ovl_set_flag(OVL_IMPURE, inode);
+
+	if (inode->i_state & I_NEW)
+		unlock_new_inode(inode);
+out:
 	return inode;
+
+out_nomem:
+	inode = ERR_PTR(-ENOMEM);
+	goto out;
 }
diff --git a/fs/overlayfs/namei.c b/fs/overlayfs/namei.c
index de0d4f742f36..8aef2b304b2d 100644
--- a/fs/overlayfs/namei.c
+++ b/fs/overlayfs/namei.c
@@ -88,13 +88,10 @@ static int ovl_acceptable(void *ctx, struct dentry *dentry)
 	return 1;
 }
 
-static struct dentry *ovl_get_origin(struct dentry *dentry,
-				     struct vfsmount *mnt)
+static struct ovl_fh *ovl_get_origin_fh(struct dentry *dentry)
 {
 	int res;
 	struct ovl_fh *fh = NULL;
-	struct dentry *origin = NULL;
-	int bytes;
 
 	res = vfs_getxattr(dentry, OVL_XATTR_ORIGIN, NULL, 0);
 	if (res < 0) {
@@ -106,7 +103,7 @@ static struct dentry *ovl_get_origin(struct dentry *dentry,
 	if (res == 0)
 		return NULL;
 
-	fh  = kzalloc(res, GFP_TEMPORARY);
+	fh = kzalloc(res, GFP_TEMPORARY);
 	if (!fh)
 		return ERR_PTR(-ENOMEM);
 
@@ -129,7 +126,29 @@ static struct dentry *ovl_get_origin(struct dentry *dentry,
 	    (fh->flags & OVL_FH_FLAG_BIG_ENDIAN) != OVL_FH_FLAG_CPU_ENDIAN)
 		goto out;
 
-	bytes = (fh->len - offsetof(struct ovl_fh, fid));
+	return fh;
+
+out:
+	kfree(fh);
+	return NULL;
+
+fail:
+	pr_warn_ratelimited("overlayfs: failed to get origin (%i)\n", res);
+	goto out;
+invalid:
+	pr_warn_ratelimited("overlayfs: invalid origin (%*phN)\n", res, fh);
+	goto out;
+}
+
+static struct dentry *ovl_get_origin(struct dentry *dentry,
+				     struct vfsmount *mnt)
+{
+	struct dentry *origin = NULL;
+	struct ovl_fh *fh = ovl_get_origin_fh(dentry);
+	int bytes;
+
+	if (IS_ERR_OR_NULL(fh))
+		return (struct dentry *)fh;
 
 	/*
 	 * Make sure that the stored uuid matches the uuid of the lower
@@ -138,6 +157,7 @@ static struct dentry *ovl_get_origin(struct dentry *dentry,
 	if (!uuid_equal(&fh->uuid, &mnt->mnt_sb->s_uuid))
 		goto out;
 
+	bytes = (fh->len - offsetof(struct ovl_fh, fid));
 	origin = exportfs_decode_fh(mnt, (struct fid *)fh->fid,
 				    bytes >> 2, (int)fh->type,
 				    ovl_acceptable, NULL);
@@ -149,21 +169,17 @@ static struct dentry *ovl_get_origin(struct dentry *dentry,
 	}
 
 	if (ovl_dentry_weird(origin) ||
-	    ((d_inode(origin)->i_mode ^ d_inode(dentry)->i_mode) & S_IFMT)) {
-		dput(origin);
-		origin = NULL;
+	    ((d_inode(origin)->i_mode ^ d_inode(dentry)->i_mode) & S_IFMT))
 		goto invalid;
-	}
 
 out:
 	kfree(fh);
 	return origin;
 
-fail:
-	pr_warn_ratelimited("overlayfs: failed to get origin (%i)\n", res);
-	goto out;
 invalid:
-	pr_warn_ratelimited("overlayfs: invalid origin (%*phN)\n", res, fh);
+	pr_warn_ratelimited("overlayfs: invalid origin (%pd2)\n", origin);
+	dput(origin);
+	origin = NULL;
 	goto out;
 }
 
@@ -269,34 +285,31 @@ static int ovl_lookup_layer(struct dentry *base, struct ovl_lookup_data *d,
 }
 
 
-static int ovl_check_origin(struct dentry *dentry, struct dentry *upperdentry,
+static int ovl_check_origin(struct dentry *upperdentry,
+			    struct path *lowerstack, unsigned int numlower,
 			    struct path **stackp, unsigned int *ctrp)
 {
-	struct super_block *same_sb = ovl_same_sb(dentry->d_sb);
-	struct ovl_entry *roe = dentry->d_sb->s_root->d_fsdata;
 	struct vfsmount *mnt;
-	struct dentry *origin;
+	struct dentry *origin = NULL;
+	int i;
+
+
+	for (i = 0; i < numlower; i++) {
+		mnt = lowerstack[i].mnt;
+		origin = ovl_get_origin(upperdentry, mnt);
+		if (IS_ERR(origin))
+			return PTR_ERR(origin);
 
-	if (!same_sb || !roe->numlower)
+		if (origin)
+			break;
+	}
+
+	if (!origin)
 		return 0;
 
-       /*
-	* Since all layers are on the same fs, we use the first layer for
-	* decoding the file handle.  We may get a disconnected dentry,
-	* which is fine, because we only need to hold the origin inode in
-	* cache and use its inode number.  We may even get a connected dentry,
-	* that is not under the first layer's root.  That is also fine for
-	* using it's inode number - it's the same as if we held a reference
-	* to a dentry in first layer that was moved under us.
-	*/
-	mnt = roe->lowerstack[0].mnt;
-
-	origin = ovl_get_origin(upperdentry, mnt);
-	if (IS_ERR_OR_NULL(origin))
-		return PTR_ERR(origin);
-
-	BUG_ON(*stackp || *ctrp);
-	*stackp = kmalloc(sizeof(struct path), GFP_TEMPORARY);
+	BUG_ON(*ctrp);
+	if (!*stackp)
+		*stackp = kmalloc(sizeof(struct path), GFP_TEMPORARY);
 	if (!*stackp) {
 		dput(origin);
 		return -ENOMEM;
@@ -308,6 +321,238 @@ static int ovl_check_origin(struct dentry *dentry, struct dentry *upperdentry,
 }
 
 /*
+ * Verify that @fh matches the origin file handle stored in OVL_XATTR_ORIGIN.
+ * Return 0 on match, -ESTALE on mismatch, < 0 on error.
+ */
+static int ovl_verify_origin_fh(struct dentry *dentry, const struct ovl_fh *fh)
+{
+	struct ovl_fh *ofh = ovl_get_origin_fh(dentry);
+	int err = 0;
+
+	if (!ofh)
+		return -ENODATA;
+
+	if (IS_ERR(ofh))
+		return PTR_ERR(ofh);
+
+	if (fh->len != ofh->len || memcmp(fh, ofh, fh->len))
+		err = -ESTALE;
+
+	kfree(ofh);
+	return err;
+}
+
+/*
+ * Verify that an inode matches the origin file handle stored in upper inode.
+ *
+ * If @set is true and there is no stored file handle, encode and store origin
+ * file handle in OVL_XATTR_ORIGIN.
+ *
+ * Return 0 on match, -ESTALE on mismatch, < 0 on error.
+ */
+int ovl_verify_origin(struct dentry *dentry, struct vfsmount *mnt,
+		      struct dentry *origin, bool is_upper, bool set)
+{
+	struct inode *inode;
+	struct ovl_fh *fh;
+	int err;
+
+	fh = ovl_encode_fh(origin, is_upper);
+	err = PTR_ERR(fh);
+	if (IS_ERR(fh))
+		goto fail;
+
+	err = ovl_verify_origin_fh(dentry, fh);
+	if (set && err == -ENODATA)
+		err = ovl_do_setxattr(dentry, OVL_XATTR_ORIGIN, fh, fh->len, 0);
+	if (err)
+		goto fail;
+
+out:
+	kfree(fh);
+	return err;
+
+fail:
+	inode = d_inode(origin);
+	pr_warn_ratelimited("overlayfs: failed to verify origin (%pd2, ino=%lu, err=%i)\n",
+			    origin, inode ? inode->i_ino : 0, err);
+	goto out;
+}
+
+/*
+ * Verify that an index entry name matches the origin file handle stored in
+ * OVL_XATTR_ORIGIN and that origin file handle can be decoded to lower path.
+ * Return 0 on match, -ESTALE on mismatch or stale origin, < 0 on error.
+ */
+int ovl_verify_index(struct dentry *index, struct path *lowerstack,
+		     unsigned int numlower)
+{
+	struct ovl_fh *fh = NULL;
+	size_t len;
+	struct path origin = { };
+	struct path *stack = &origin;
+	unsigned int ctr = 0;
+	int err;
+
+	if (!d_inode(index))
+		return 0;
+
+	/*
+	 * Directory index entries are going to be used for looking up
+	 * redirected upper dirs by lower dir fh when decoding an overlay
+	 * file handle of a merge dir. Whiteout index entries are going to be
+	 * used as an indication that an exported overlay file handle should
+	 * be treated as stale (i.e. after unlink of the overlay inode).
+	 * We don't know the verification rules for directory and whiteout
+	 * index entries, because they have not been implemented yet, so return
+	 * EROFS if those entries are found to avoid corrupting an index that
+	 * was created by a newer kernel.
+	 */
+	err = -EROFS;
+	if (d_is_dir(index) || ovl_is_whiteout(index))
+		goto fail;
+
+	err = -EINVAL;
+	if (index->d_name.len < sizeof(struct ovl_fh)*2)
+		goto fail;
+
+	err = -ENOMEM;
+	len = index->d_name.len / 2;
+	fh = kzalloc(len, GFP_TEMPORARY);
+	if (!fh)
+		goto fail;
+
+	err = -EINVAL;
+	if (hex2bin((u8 *)fh, index->d_name.name, len) || len != fh->len)
+		goto fail;
+
+	err = ovl_verify_origin_fh(index, fh);
+	if (err)
+		goto fail;
+
+	err = ovl_check_origin(index, lowerstack, numlower, &stack, &ctr);
+	if (!err && !ctr)
+		err = -ESTALE;
+	if (err)
+		goto fail;
+
+	/* Check if index is orphan and don't warn before cleaning it */
+	if (d_inode(index)->i_nlink == 1 &&
+	    ovl_get_nlink(index, origin.dentry, 0) == 0)
+		err = -ENOENT;
+
+	dput(origin.dentry);
+out:
+	kfree(fh);
+	return err;
+
+fail:
+	pr_warn_ratelimited("overlayfs: failed to verify index (%pd2, ftype=%x, err=%i)\n",
+			    index, d_inode(index)->i_mode & S_IFMT, err);
+	goto out;
+}
+
+/*
+ * Lookup in indexdir for the index entry of a lower real inode or a copy up
+ * origin inode. The index entry name is the hex representation of the lower
+ * inode file handle.
+ *
+ * If the index dentry in negative, then either no lower aliases have been
+ * copied up yet, or aliases have been copied up in older kernels and are
+ * not indexed.
+ *
+ * If the index dentry for a copy up origin inode is positive, but points
+ * to an inode different than the upper inode, then either the upper inode
+ * has been copied up and not indexed or it was indexed, but since then
+ * index dir was cleared. Either way, that index cannot be used to indentify
+ * the overlay inode.
+ */
+int ovl_get_index_name(struct dentry *origin, struct qstr *name)
+{
+	int err;
+	struct ovl_fh *fh;
+	char *n, *s;
+
+	fh = ovl_encode_fh(origin, false);
+	if (IS_ERR(fh))
+		return PTR_ERR(fh);
+
+	err = -ENOMEM;
+	n = kzalloc(fh->len * 2, GFP_TEMPORARY);
+	if (n) {
+		s  = bin2hex(n, fh, fh->len);
+		*name = (struct qstr) QSTR_INIT(n, s - n);
+		err = 0;
+	}
+	kfree(fh);
+
+	return err;
+
+}
+
+static struct dentry *ovl_lookup_index(struct dentry *dentry,
+				       struct dentry *upper,
+				       struct dentry *origin)
+{
+	struct ovl_fs *ofs = dentry->d_sb->s_fs_info;
+	struct dentry *index;
+	struct inode *inode;
+	struct qstr name;
+	int err;
+
+	err = ovl_get_index_name(origin, &name);
+	if (err)
+		return ERR_PTR(err);
+
+	index = lookup_one_len_unlocked(name.name, ofs->indexdir, name.len);
+	if (IS_ERR(index)) {
+		pr_warn_ratelimited("overlayfs: failed inode index lookup (ino=%lu, key=%*s, err=%i);\n"
+				    "overlayfs: mount with '-o index=off' to disable inodes index.\n",
+				    d_inode(origin)->i_ino, name.len, name.name,
+				    err);
+		goto out;
+	}
+
+	inode = d_inode(index);
+	if (d_is_negative(index)) {
+		if (upper && d_inode(origin)->i_nlink > 1) {
+			pr_warn_ratelimited("overlayfs: hard link with origin but no index (ino=%lu).\n",
+					    d_inode(origin)->i_ino);
+			goto fail;
+		}
+
+		dput(index);
+		index = NULL;
+	} else if (upper && d_inode(upper) != inode) {
+		pr_warn_ratelimited("overlayfs: wrong index found (index=%pd2, ino=%lu, upper ino=%lu).\n",
+				    index, inode->i_ino, d_inode(upper)->i_ino);
+		goto fail;
+	} else if (ovl_dentry_weird(index) || ovl_is_whiteout(index) ||
+		   ((inode->i_mode ^ d_inode(origin)->i_mode) & S_IFMT)) {
+		/*
+		 * Index should always be of the same file type as origin
+		 * except for the case of a whiteout index. A whiteout
+		 * index should only exist if all lower aliases have been
+		 * unlinked, which means that finding a lower origin on lookup
+		 * whose index is a whiteout should be treated as an error.
+		 */
+		pr_warn_ratelimited("overlayfs: bad index found (index=%pd2, ftype=%x, origin ftype=%x).\n",
+				    index, d_inode(index)->i_mode & S_IFMT,
+				    d_inode(origin)->i_mode & S_IFMT);
+		goto fail;
+	}
+
+out:
+	kfree(name.name);
+	return index;
+
+fail:
+	dput(index);
+	index = ERR_PTR(-EIO);
+	goto out;
+}
+
+/*
  * Returns next layer in stack starting from top.
  * Returns -1 if this is the last layer.
  */
@@ -338,10 +583,10 @@ struct dentry *ovl_lookup(struct inode *dir, struct dentry *dentry,
 	struct ovl_entry *roe = dentry->d_sb->s_root->d_fsdata;
 	struct path *stack = NULL;
 	struct dentry *upperdir, *upperdentry = NULL;
+	struct dentry *index = NULL;
 	unsigned int ctr = 0;
 	struct inode *inode = NULL;
 	bool upperopaque = false;
-	bool upperimpure = false;
 	char *upperredirect = NULL;
 	struct dentry *this;
 	unsigned int i;
@@ -359,7 +604,7 @@ struct dentry *ovl_lookup(struct inode *dir, struct dentry *dentry,
 		return ERR_PTR(-ENAMETOOLONG);
 
 	old_cred = ovl_override_creds(dentry->d_sb);
-	upperdir = ovl_upperdentry_dereference(poe);
+	upperdir = ovl_dentry_upper(dentry->d_parent);
 	if (upperdir) {
 		err = ovl_lookup_layer(upperdir, &d, &upperdentry);
 		if (err)
@@ -372,8 +617,18 @@ struct dentry *ovl_lookup(struct inode *dir, struct dentry *dentry,
 		}
 		if (upperdentry && !d.is_dir) {
 			BUG_ON(!d.stop || d.redirect);
-			err = ovl_check_origin(dentry, upperdentry,
-					       &stack, &ctr);
+			/*
+			 * Lookup copy up origin by decoding origin file handle.
+			 * We may get a disconnected dentry, which is fine,
+			 * because we only need to hold the origin inode in
+			 * cache and use its inode number.  We may even get a
+			 * connected dentry, that is not under any of the lower
+			 * layers root.  That is also fine for using it's inode
+			 * number - it's the same as if we held a reference
+			 * to a dentry in lower layer that was moved under us.
+			 */
+			err = ovl_check_origin(upperdentry, roe->lowerstack,
+					       roe->numlower, &stack, &ctr);
 			if (err)
 				goto out;
 		}
@@ -386,8 +641,6 @@ struct dentry *ovl_lookup(struct inode *dir, struct dentry *dentry,
 				poe = roe;
 		}
 		upperopaque = d.opaque;
-		if (upperdentry && d.is_dir)
-			upperimpure = ovl_is_impuredir(upperdentry);
 	}
 
 	if (!d.stop && poe->numlower) {
@@ -428,48 +681,56 @@ struct dentry *ovl_lookup(struct inode *dir, struct dentry *dentry,
 		}
 	}
 
+	/* Lookup index by lower inode and verify it matches upper inode */
+	if (ctr && !d.is_dir && ovl_indexdir(dentry->d_sb)) {
+		struct dentry *origin = stack[0].dentry;
+
+		index = ovl_lookup_index(dentry, upperdentry, origin);
+		if (IS_ERR(index)) {
+			err = PTR_ERR(index);
+			index = NULL;
+			goto out_put;
+		}
+	}
+
 	oe = ovl_alloc_entry(ctr);
 	err = -ENOMEM;
 	if (!oe)
 		goto out_put;
 
-	if (upperdentry || ctr) {
-		struct dentry *realdentry;
-		struct inode *realinode;
+	oe->opaque = upperopaque;
+	memcpy(oe->lowerstack, stack, sizeof(struct path) * ctr);
+	dentry->d_fsdata = oe;
 
-		realdentry = upperdentry ? upperdentry : stack[0].dentry;
-		realinode = d_inode(realdentry);
+	if (upperdentry)
+		ovl_dentry_set_upper_alias(dentry);
+	else if (index)
+		upperdentry = dget(index);
 
-		err = -ENOMEM;
-		if (upperdentry && !d_is_dir(upperdentry)) {
-			inode = ovl_get_inode(dentry->d_sb, realinode);
-		} else {
-			inode = ovl_new_inode(dentry->d_sb, realinode->i_mode,
-					      realinode->i_rdev);
-			if (inode)
-				ovl_inode_init(inode, realinode, !!upperdentry);
-		}
-		if (!inode)
+	if (upperdentry || ctr) {
+		inode = ovl_get_inode(dentry, upperdentry);
+		err = PTR_ERR(inode);
+		if (IS_ERR(inode))
 			goto out_free_oe;
-		ovl_copyattr(realdentry->d_inode, inode);
+
+		OVL_I(inode)->redirect = upperredirect;
+		if (index)
+			ovl_set_flag(OVL_INDEX, inode);
 	}
 
 	revert_creds(old_cred);
-	oe->opaque = upperopaque;
-	oe->impure = upperimpure;
-	oe->redirect = upperredirect;
-	oe->__upperdentry = upperdentry;
-	memcpy(oe->lowerstack, stack, sizeof(struct path) * ctr);
+	dput(index);
 	kfree(stack);
 	kfree(d.redirect);
-	dentry->d_fsdata = oe;
 	d_add(dentry, inode);
 
 	return NULL;
 
 out_free_oe:
+	dentry->d_fsdata = NULL;
 	kfree(oe);
 out_put:
+	dput(index);
 	for (i = 0; i < ctr; i++)
 		dput(stack[i].dentry);
 	kfree(stack);
@@ -499,7 +760,7 @@ bool ovl_lower_positive(struct dentry *dentry)
 		return oe->opaque;
 
 	/* Negative upper -> positive lower */
-	if (!oe->__upperdentry)
+	if (!ovl_dentry_upper(dentry))
 		return true;
 
 	/* Positive upper -> have to look up lower to see whether it exists */
diff --git a/fs/overlayfs/overlayfs.h b/fs/overlayfs/overlayfs.h
index 10863b4105fa..e927a62c97ae 100644
--- a/fs/overlayfs/overlayfs.h
+++ b/fs/overlayfs/overlayfs.h
@@ -25,6 +25,12 @@ enum ovl_path_type {
 #define OVL_XATTR_REDIRECT OVL_XATTR_PREFIX "redirect"
 #define OVL_XATTR_ORIGIN OVL_XATTR_PREFIX "origin"
 #define OVL_XATTR_IMPURE OVL_XATTR_PREFIX "impure"
+#define OVL_XATTR_NLINK OVL_XATTR_PREFIX "nlink"
+
+enum ovl_flag {
+	OVL_IMPURE,
+	OVL_INDEX,
+};
 
 /*
  * The tuple (fh,uuid) is a universal unique identifier for a copy up origin,
@@ -38,8 +44,11 @@ enum ovl_path_type {
 /* CPU byte order required for fid decoding:  */
 #define OVL_FH_FLAG_BIG_ENDIAN	(1 << 0)
 #define OVL_FH_FLAG_ANY_ENDIAN	(1 << 1)
+/* Is the real inode encoded in fid an upper inode? */
+#define OVL_FH_FLAG_PATH_UPPER	(1 << 2)
 
-#define OVL_FH_FLAG_ALL (OVL_FH_FLAG_BIG_ENDIAN | OVL_FH_FLAG_ANY_ENDIAN)
+#define OVL_FH_FLAG_ALL (OVL_FH_FLAG_BIG_ENDIAN | OVL_FH_FLAG_ANY_ENDIAN | \
+			 OVL_FH_FLAG_PATH_UPPER)
 
 #if defined(__LITTLE_ENDIAN)
 #define OVL_FH_FLAG_CPU_ENDIAN 0
@@ -60,8 +69,6 @@ struct ovl_fh {
 	u8 fid[0];	/* file identifier */
 } __packed;
 
-#define OVL_ISUPPER_MASK 1UL
-
 static inline int ovl_do_rmdir(struct inode *dir, struct dentry *dentry)
 {
 	int err = vfs_rmdir(dir, dentry);
@@ -175,22 +182,14 @@ static inline struct dentry *ovl_do_tmpfile(struct dentry *dentry, umode_t mode)
 	return ret;
 }
 
-static inline struct inode *ovl_inode_real(struct inode *inode, bool *is_upper)
-{
-	unsigned long x = (unsigned long) READ_ONCE(inode->i_private);
-
-	if (is_upper)
-		*is_upper = x & OVL_ISUPPER_MASK;
-
-	return (struct inode *) (x & ~OVL_ISUPPER_MASK);
-}
-
 /* util.c */
 int ovl_want_write(struct dentry *dentry);
 void ovl_drop_write(struct dentry *dentry);
 struct dentry *ovl_workdir(struct dentry *dentry);
 const struct cred *ovl_override_creds(struct super_block *sb);
 struct super_block *ovl_same_sb(struct super_block *sb);
+bool ovl_can_decode_fh(struct super_block *sb);
+struct dentry *ovl_indexdir(struct super_block *sb);
 struct ovl_entry *ovl_alloc_entry(unsigned int numlower);
 bool ovl_dentry_remote(struct dentry *dentry);
 bool ovl_dentry_weird(struct dentry *dentry);
@@ -201,19 +200,23 @@ enum ovl_path_type ovl_path_real(struct dentry *dentry, struct path *path);
 struct dentry *ovl_dentry_upper(struct dentry *dentry);
 struct dentry *ovl_dentry_lower(struct dentry *dentry);
 struct dentry *ovl_dentry_real(struct dentry *dentry);
+struct dentry *ovl_i_dentry_upper(struct inode *inode);
+struct inode *ovl_inode_upper(struct inode *inode);
+struct inode *ovl_inode_lower(struct inode *inode);
+struct inode *ovl_inode_real(struct inode *inode);
 struct ovl_dir_cache *ovl_dir_cache(struct dentry *dentry);
 void ovl_set_dir_cache(struct dentry *dentry, struct ovl_dir_cache *cache);
 bool ovl_dentry_is_opaque(struct dentry *dentry);
-bool ovl_dentry_is_impure(struct dentry *dentry);
 bool ovl_dentry_is_whiteout(struct dentry *dentry);
 void ovl_dentry_set_opaque(struct dentry *dentry);
+bool ovl_dentry_has_upper_alias(struct dentry *dentry);
+void ovl_dentry_set_upper_alias(struct dentry *dentry);
 bool ovl_redirect_dir(struct super_block *sb);
 const char *ovl_dentry_get_redirect(struct dentry *dentry);
 void ovl_dentry_set_redirect(struct dentry *dentry, const char *redirect);
-void ovl_dentry_update(struct dentry *dentry, struct dentry *upperdentry);
-void ovl_inode_init(struct inode *inode, struct inode *realinode,
-		    bool is_upper);
-void ovl_inode_update(struct inode *inode, struct inode *upperinode);
+void ovl_inode_init(struct inode *inode, struct dentry *upperdentry,
+		    struct dentry *lowerdentry);
+void ovl_inode_update(struct inode *inode, struct dentry *upperdentry);
 void ovl_dentry_version_inc(struct dentry *dentry);
 u64 ovl_dentry_version_get(struct dentry *dentry);
 bool ovl_is_whiteout(struct dentry *dentry);
@@ -225,6 +228,12 @@ int ovl_check_setxattr(struct dentry *dentry, struct dentry *upperdentry,
 		       const char *name, const void *value, size_t size,
 		       int xerr);
 int ovl_set_impure(struct dentry *dentry, struct dentry *upperdentry);
+void ovl_set_flag(unsigned long flag, struct inode *inode);
+bool ovl_test_flag(unsigned long flag, struct inode *inode);
+bool ovl_inuse_trylock(struct dentry *dentry);
+void ovl_inuse_unlock(struct dentry *dentry);
+int ovl_nlink_start(struct dentry *dentry, bool *locked);
+void ovl_nlink_end(struct dentry *dentry, bool locked);
 
 static inline bool ovl_is_impuredir(struct dentry *dentry)
 {
@@ -233,6 +242,11 @@ static inline bool ovl_is_impuredir(struct dentry *dentry)
 
 
 /* namei.c */
+int ovl_verify_origin(struct dentry *dentry, struct vfsmount *mnt,
+		      struct dentry *origin, bool is_upper, bool set);
+int ovl_verify_index(struct dentry *index, struct path *lowerstack,
+		     unsigned int numlower);
+int ovl_get_index_name(struct dentry *origin, struct qstr *name);
 int ovl_path_next(int idx, struct dentry *dentry, struct path *path);
 struct dentry *ovl_lookup(struct inode *dir, struct dentry *dentry, unsigned int flags);
 bool ovl_lower_positive(struct dentry *dentry);
@@ -245,15 +259,22 @@ void ovl_cache_free(struct list_head *list);
 int ovl_check_d_type_supported(struct path *realpath);
 void ovl_workdir_cleanup(struct inode *dir, struct vfsmount *mnt,
 			 struct dentry *dentry, int level);
+int ovl_indexdir_cleanup(struct dentry *dentry, struct vfsmount *mnt,
+			 struct path *lowerstack, unsigned int numlower);
 
 /* inode.c */
+int ovl_set_nlink_upper(struct dentry *dentry);
+int ovl_set_nlink_lower(struct dentry *dentry);
+unsigned int ovl_get_nlink(struct dentry *lowerdentry,
+			   struct dentry *upperdentry,
+			   unsigned int fallback);
 int ovl_setattr(struct dentry *dentry, struct iattr *attr);
 int ovl_getattr(const struct path *path, struct kstat *stat,
 		u32 request_mask, unsigned int flags);
 int ovl_permission(struct inode *inode, int mask);
-int ovl_xattr_set(struct dentry *dentry, const char *name, const void *value,
-		  size_t size, int flags);
-int ovl_xattr_get(struct dentry *dentry, const char *name,
+int ovl_xattr_set(struct dentry *dentry, struct inode *inode, const char *name,
+		  const void *value, size_t size, int flags);
+int ovl_xattr_get(struct dentry *dentry, struct inode *inode, const char *name,
 		  void *value, size_t size);
 ssize_t ovl_listxattr(struct dentry *dentry, char *list, size_t size);
 struct posix_acl *ovl_get_acl(struct inode *inode, int type);
@@ -262,7 +283,7 @@ int ovl_update_time(struct inode *inode, struct timespec *ts, int flags);
 bool ovl_is_private_xattr(const char *name);
 
 struct inode *ovl_new_inode(struct super_block *sb, umode_t mode, dev_t rdev);
-struct inode *ovl_get_inode(struct super_block *sb, struct inode *realinode);
+struct inode *ovl_get_inode(struct dentry *dentry, struct dentry *upperdentry);
 static inline void ovl_copyattr(struct inode *from, struct inode *to)
 {
 	to->i_uid = from->i_uid;
@@ -284,10 +305,11 @@ struct cattr {
 int ovl_create_real(struct inode *dir, struct dentry *newdentry,
 		    struct cattr *attr,
 		    struct dentry *hardlink, bool debug);
-void ovl_cleanup(struct inode *dir, struct dentry *dentry);
+int ovl_cleanup(struct inode *dir, struct dentry *dentry);
 
 /* copy_up.c */
 int ovl_copy_up(struct dentry *dentry);
 int ovl_copy_up_flags(struct dentry *dentry, int flags);
 int ovl_copy_xattr(struct dentry *old, struct dentry *new);
 int ovl_set_attr(struct dentry *upper, struct kstat *stat);
+struct ovl_fh *ovl_encode_fh(struct dentry *lower, bool is_upper);
diff --git a/fs/overlayfs/ovl_entry.h b/fs/overlayfs/ovl_entry.h
index 34bc4a9f5c61..878a750986dd 100644
--- a/fs/overlayfs/ovl_entry.h
+++ b/fs/overlayfs/ovl_entry.h
@@ -14,6 +14,7 @@ struct ovl_config {
 	char *workdir;
 	bool default_permissions;
 	bool redirect_dir;
+	bool index;
 };
 
 /* private information held for overlayfs's superblock */
@@ -21,7 +22,12 @@ struct ovl_fs {
 	struct vfsmount *upper_mnt;
 	unsigned numlower;
 	struct vfsmount **lower_mnt;
+	/* workbasedir is the path at workdir= mount option */
+	struct dentry *workbasedir;
+	/* workdir is the 'work' directory under workbasedir */
 	struct dentry *workdir;
+	/* index directory listing overlay inodes by origin file handle */
+	struct dentry *indexdir;
 	long namelen;
 	/* pathnames of lower and upper dirs, for show_options */
 	struct ovl_config config;
@@ -29,22 +35,16 @@ struct ovl_fs {
 	const struct cred *creator_cred;
 	bool tmpfile;
 	bool noxattr;
-	wait_queue_head_t copyup_wq;
 	/* sb common to all layers */
 	struct super_block *same_sb;
 };
 
 /* private information held for every overlayfs dentry */
 struct ovl_entry {
-	struct dentry *__upperdentry;
-	struct ovl_dir_cache *cache;
 	union {
 		struct {
-			u64 version;
-			const char *redirect;
+			unsigned long has_upper;
 			bool opaque;
-			bool impure;
-			bool copying;
 		};
 		struct rcu_head rcu;
 	};
@@ -54,7 +54,25 @@ struct ovl_entry {
 
 struct ovl_entry *ovl_alloc_entry(unsigned int numlower);
 
-static inline struct dentry *ovl_upperdentry_dereference(struct ovl_entry *oe)
+struct ovl_inode {
+	struct ovl_dir_cache *cache;
+	const char *redirect;
+	u64 version;
+	unsigned long flags;
+	struct inode vfs_inode;
+	struct dentry *__upperdentry;
+	struct inode *lower;
+
+	/* synchronize copy up and more */
+	struct mutex lock;
+};
+
+static inline struct ovl_inode *OVL_I(struct inode *inode)
+{
+	return container_of(inode, struct ovl_inode, vfs_inode);
+}
+
+static inline struct dentry *ovl_upperdentry_dereference(struct ovl_inode *oi)
 {
-	return lockless_dereference(oe->__upperdentry);
+	return lockless_dereference(oi->__upperdentry);
 }
diff --git a/fs/overlayfs/readdir.c b/fs/overlayfs/readdir.c
index f241b4ee3d8a..3d424a51cabb 100644
--- a/fs/overlayfs/readdir.c
+++ b/fs/overlayfs/readdir.c
@@ -667,3 +667,56 @@ void ovl_workdir_cleanup(struct inode *dir, struct vfsmount *mnt,
 		ovl_cleanup(dir, dentry);
 	}
 }
+
+int ovl_indexdir_cleanup(struct dentry *dentry, struct vfsmount *mnt,
+			 struct path *lowerstack, unsigned int numlower)
+{
+	int err;
+	struct inode *dir = dentry->d_inode;
+	struct path path = { .mnt = mnt, .dentry = dentry };
+	LIST_HEAD(list);
+	struct ovl_cache_entry *p;
+	struct ovl_readdir_data rdd = {
+		.ctx.actor = ovl_fill_merge,
+		.dentry = NULL,
+		.list = &list,
+		.root = RB_ROOT,
+		.is_lowest = false,
+	};
+
+	err = ovl_dir_read(&path, &rdd);
+	if (err)
+		goto out;
+
+	inode_lock_nested(dir, I_MUTEX_PARENT);
+	list_for_each_entry(p, &list, l_node) {
+		struct dentry *index;
+
+		if (p->name[0] == '.') {
+			if (p->len == 1)
+				continue;
+			if (p->len == 2 && p->name[1] == '.')
+				continue;
+		}
+		index = lookup_one_len(p->name, dentry, p->len);
+		if (IS_ERR(index)) {
+			err = PTR_ERR(index);
+			break;
+		}
+		err = ovl_verify_index(index, lowerstack, numlower);
+		if (err) {
+			if (err == -EROFS)
+				break;
+			err = ovl_cleanup(dir, index);
+			if (err)
+				break;
+		}
+		dput(index);
+	}
+	inode_unlock(dir);
+out:
+	ovl_cache_free(&list);
+	if (err)
+		pr_err("overlayfs: failed index dir cleanup (%i)\n", err);
+	return err;
+}
diff --git a/fs/overlayfs/super.c b/fs/overlayfs/super.c
index 4882ffb37bae..d86e89f97201 100644
--- a/fs/overlayfs/super.c
+++ b/fs/overlayfs/super.c
@@ -34,6 +34,11 @@ module_param_named(redirect_dir, ovl_redirect_dir_def, bool, 0644);
 MODULE_PARM_DESC(ovl_redirect_dir_def,
 		 "Default to on or off for the redirect_dir feature");
 
+static bool ovl_index_def = IS_ENABLED(CONFIG_OVERLAY_FS_INDEX);
+module_param_named(index, ovl_index_def, bool, 0644);
+MODULE_PARM_DESC(ovl_index_def,
+		 "Default to on or off for the inodes index feature");
+
 static void ovl_dentry_release(struct dentry *dentry)
 {
 	struct ovl_entry *oe = dentry->d_fsdata;
@@ -41,8 +46,6 @@ static void ovl_dentry_release(struct dentry *dentry)
 	if (oe) {
 		unsigned int i;
 
-		dput(oe->__upperdentry);
-		kfree(oe->redirect);
 		for (i = 0; i < oe->numlower; i++)
 			dput(oe->lowerstack[i].dentry);
 		kfree_rcu(oe, rcu);
@@ -165,12 +168,52 @@ static const struct dentry_operations ovl_reval_dentry_operations = {
 	.d_weak_revalidate = ovl_dentry_weak_revalidate,
 };
 
+static struct kmem_cache *ovl_inode_cachep;
+
+static struct inode *ovl_alloc_inode(struct super_block *sb)
+{
+	struct ovl_inode *oi = kmem_cache_alloc(ovl_inode_cachep, GFP_KERNEL);
+
+	oi->cache = NULL;
+	oi->redirect = NULL;
+	oi->version = 0;
+	oi->flags = 0;
+	oi->__upperdentry = NULL;
+	oi->lower = NULL;
+	mutex_init(&oi->lock);
+
+	return &oi->vfs_inode;
+}
+
+static void ovl_i_callback(struct rcu_head *head)
+{
+	struct inode *inode = container_of(head, struct inode, i_rcu);
+
+	kmem_cache_free(ovl_inode_cachep, OVL_I(inode));
+}
+
+static void ovl_destroy_inode(struct inode *inode)
+{
+	struct ovl_inode *oi = OVL_I(inode);
+
+	dput(oi->__upperdentry);
+	kfree(oi->redirect);
+	mutex_destroy(&oi->lock);
+
+	call_rcu(&inode->i_rcu, ovl_i_callback);
+}
+
 static void ovl_put_super(struct super_block *sb)
 {
 	struct ovl_fs *ufs = sb->s_fs_info;
 	unsigned i;
 
+	dput(ufs->indexdir);
 	dput(ufs->workdir);
+	ovl_inuse_unlock(ufs->workbasedir);
+	dput(ufs->workbasedir);
+	if (ufs->upper_mnt)
+		ovl_inuse_unlock(ufs->upper_mnt->mnt_root);
 	mntput(ufs->upper_mnt);
 	for (i = 0; i < ufs->numlower; i++)
 		mntput(ufs->lower_mnt[i]);
@@ -228,6 +271,12 @@ static int ovl_statfs(struct dentry *dentry, struct kstatfs *buf)
 	return err;
 }
 
+/* Will this overlay be forced to mount/remount ro? */
+static bool ovl_force_readonly(struct ovl_fs *ufs)
+{
+	return (!ufs->upper_mnt || !ufs->workdir);
+}
+
 /**
  * ovl_show_options
  *
@@ -249,6 +298,9 @@ static int ovl_show_options(struct seq_file *m, struct dentry *dentry)
 	if (ufs->config.redirect_dir != ovl_redirect_dir_def)
 		seq_printf(m, ",redirect_dir=%s",
 			   ufs->config.redirect_dir ? "on" : "off");
+	if (ufs->config.index != ovl_index_def)
+		seq_printf(m, ",index=%s",
+			   ufs->config.index ? "on" : "off");
 	return 0;
 }
 
@@ -256,19 +308,21 @@ static int ovl_remount(struct super_block *sb, int *flags, char *data)
 {
 	struct ovl_fs *ufs = sb->s_fs_info;
 
-	if (!(*flags & MS_RDONLY) && (!ufs->upper_mnt || !ufs->workdir))
+	if (!(*flags & MS_RDONLY) && ovl_force_readonly(ufs))
 		return -EROFS;
 
 	return 0;
 }
 
 static const struct super_operations ovl_super_operations = {
+	.alloc_inode	= ovl_alloc_inode,
+	.destroy_inode	= ovl_destroy_inode,
+	.drop_inode	= generic_delete_inode,
 	.put_super	= ovl_put_super,
 	.sync_fs	= ovl_sync_fs,
 	.statfs		= ovl_statfs,
 	.show_options	= ovl_show_options,
 	.remount_fs	= ovl_remount,
-	.drop_inode	= generic_delete_inode,
 };
 
 enum {
@@ -278,6 +332,8 @@ enum {
 	OPT_DEFAULT_PERMISSIONS,
 	OPT_REDIRECT_DIR_ON,
 	OPT_REDIRECT_DIR_OFF,
+	OPT_INDEX_ON,
+	OPT_INDEX_OFF,
 	OPT_ERR,
 };
 
@@ -288,6 +344,8 @@ static const match_table_t ovl_tokens = {
 	{OPT_DEFAULT_PERMISSIONS,	"default_permissions"},
 	{OPT_REDIRECT_DIR_ON,		"redirect_dir=on"},
 	{OPT_REDIRECT_DIR_OFF,		"redirect_dir=off"},
+	{OPT_INDEX_ON,			"index=on"},
+	{OPT_INDEX_OFF,			"index=off"},
 	{OPT_ERR,			NULL}
 };
 
@@ -360,6 +418,14 @@ static int ovl_parse_opt(char *opt, struct ovl_config *config)
 			config->redirect_dir = false;
 			break;
 
+		case OPT_INDEX_ON:
+			config->index = true;
+			break;
+
+		case OPT_INDEX_OFF:
+			config->index = false;
+			break;
+
 		default:
 			pr_err("overlayfs: unrecognized mount option \"%s\" or missing value\n", p);
 			return -EINVAL;
@@ -378,23 +444,29 @@ static int ovl_parse_opt(char *opt, struct ovl_config *config)
 }
 
 #define OVL_WORKDIR_NAME "work"
+#define OVL_INDEXDIR_NAME "index"
 
-static struct dentry *ovl_workdir_create(struct vfsmount *mnt,
-					 struct dentry *dentry)
+static struct dentry *ovl_workdir_create(struct super_block *sb,
+					 struct ovl_fs *ufs,
+					 struct dentry *dentry,
+					 const char *name, bool persist)
 {
 	struct inode *dir = dentry->d_inode;
+	struct vfsmount *mnt = ufs->upper_mnt;
 	struct dentry *work;
 	int err;
 	bool retried = false;
+	bool locked = false;
 
 	err = mnt_want_write(mnt);
 	if (err)
-		return ERR_PTR(err);
+		goto out_err;
 
 	inode_lock_nested(dir, I_MUTEX_PARENT);
+	locked = true;
+
 retry:
-	work = lookup_one_len(OVL_WORKDIR_NAME, dentry,
-			      strlen(OVL_WORKDIR_NAME));
+	work = lookup_one_len(name, dentry, strlen(name));
 
 	if (!IS_ERR(work)) {
 		struct iattr attr = {
@@ -407,6 +479,9 @@ retry:
 			if (retried)
 				goto out_dput;
 
+			if (persist)
+				goto out_unlock;
+
 			retried = true;
 			ovl_workdir_cleanup(dir, mnt, work, 0);
 			dput(work);
@@ -446,16 +521,24 @@ retry:
 		inode_unlock(work->d_inode);
 		if (err)
 			goto out_dput;
+	} else {
+		err = PTR_ERR(work);
+		goto out_err;
 	}
 out_unlock:
-	inode_unlock(dir);
 	mnt_drop_write(mnt);
+	if (locked)
+		inode_unlock(dir);
 
 	return work;
 
 out_dput:
 	dput(work);
-	work = ERR_PTR(err);
+out_err:
+	pr_warn("overlayfs: failed to create directory %s/%s (errno: %i); mounting read-only\n",
+		ufs->config.workdir, name, -err);
+	sb->s_flags |= MS_RDONLY;
+	work = NULL;
 	goto out_unlock;
 }
 
@@ -555,6 +638,15 @@ static int ovl_lower_dir(const char *name, struct path *path,
 	if (ovl_dentry_remote(path->dentry))
 		*remote = true;
 
+	/*
+	 * The inodes index feature needs to encode and decode file
+	 * handles, so it requires that all layers support them.
+	 */
+	if (ofs->config.index && !ovl_can_decode_fh(path->dentry->d_sb)) {
+		ofs->config.index = false;
+		pr_warn("overlayfs: fs on '%s' does not support file handles, falling back to index=off.\n", name);
+	}
+
 	return 0;
 
 out_put:
@@ -600,7 +692,7 @@ ovl_posix_acl_xattr_get(const struct xattr_handler *handler,
 			struct dentry *dentry, struct inode *inode,
 			const char *name, void *buffer, size_t size)
 {
-	return ovl_xattr_get(dentry, handler->name, buffer, size);
+	return ovl_xattr_get(dentry, inode, handler->name, buffer, size);
 }
 
 static int __maybe_unused
@@ -610,7 +702,7 @@ ovl_posix_acl_xattr_set(const struct xattr_handler *handler,
 			size_t size, int flags)
 {
 	struct dentry *workdir = ovl_workdir(dentry);
-	struct inode *realinode = ovl_inode_real(inode, NULL);
+	struct inode *realinode = ovl_inode_real(inode);
 	struct posix_acl *acl = NULL;
 	int err;
 
@@ -650,9 +742,9 @@ ovl_posix_acl_xattr_set(const struct xattr_handler *handler,
 			return err;
 	}
 
-	err = ovl_xattr_set(dentry, handler->name, value, size, flags);
+	err = ovl_xattr_set(dentry, inode, handler->name, value, size, flags);
 	if (!err)
-		ovl_copyattr(ovl_inode_real(inode, NULL), inode);
+		ovl_copyattr(ovl_inode_real(inode), inode);
 
 	return err;
 
@@ -680,7 +772,7 @@ static int ovl_other_xattr_get(const struct xattr_handler *handler,
 			       struct dentry *dentry, struct inode *inode,
 			       const char *name, void *buffer, size_t size)
 {
-	return ovl_xattr_get(dentry, name, buffer, size);
+	return ovl_xattr_get(dentry, inode, name, buffer, size);
 }
 
 static int ovl_other_xattr_set(const struct xattr_handler *handler,
@@ -688,7 +780,7 @@ static int ovl_other_xattr_set(const struct xattr_handler *handler,
 			       const char *name, const void *value,
 			       size_t size, int flags)
 {
-	return ovl_xattr_set(dentry, name, value, size, flags);
+	return ovl_xattr_set(dentry, inode, name, value, size, flags);
 }
 
 static const struct xattr_handler __maybe_unused
@@ -734,7 +826,6 @@ static int ovl_fill_super(struct super_block *sb, void *data, int silent)
 	struct path upperpath = { };
 	struct path workpath = { };
 	struct dentry *root_dentry;
-	struct inode *realinode;
 	struct ovl_entry *oe;
 	struct ovl_fs *ufs;
 	struct path *stack = NULL;
@@ -752,8 +843,8 @@ static int ovl_fill_super(struct super_block *sb, void *data, int silent)
 	if (!ufs)
 		goto out;
 
-	init_waitqueue_head(&ufs->copyup_wq);
 	ufs->config.redirect_dir = ovl_redirect_dir_def;
+	ufs->config.index = ovl_index_def;
 	err = ovl_parse_opt((char *) data, &ufs->config);
 	if (err)
 		goto out_free_config;
@@ -788,9 +879,15 @@ static int ovl_fill_super(struct super_block *sb, void *data, int silent)
 		if (err)
 			goto out_put_upperpath;
 
+		err = -EBUSY;
+		if (!ovl_inuse_trylock(upperpath.dentry)) {
+			pr_err("overlayfs: upperdir is in-use by another mount\n");
+			goto out_put_upperpath;
+		}
+
 		err = ovl_mount_dir(ufs->config.workdir, &workpath);
 		if (err)
-			goto out_put_upperpath;
+			goto out_unlock_upperdentry;
 
 		err = -EINVAL;
 		if (upperpath.mnt != workpath.mnt) {
@@ -801,12 +898,20 @@ static int ovl_fill_super(struct super_block *sb, void *data, int silent)
 			pr_err("overlayfs: workdir and upperdir must be separate subtrees\n");
 			goto out_put_workpath;
 		}
+
+		err = -EBUSY;
+		if (!ovl_inuse_trylock(workpath.dentry)) {
+			pr_err("overlayfs: workdir is in-use by another mount\n");
+			goto out_put_workpath;
+		}
+
+		ufs->workbasedir = workpath.dentry;
 		sb->s_stack_depth = upperpath.mnt->mnt_sb->s_stack_depth;
 	}
 	err = -ENOMEM;
 	lowertmp = kstrdup(ufs->config.lowerdir, GFP_KERNEL);
 	if (!lowertmp)
-		goto out_put_workpath;
+		goto out_unlock_workdentry;
 
 	err = -EINVAL;
 	stacklen = ovl_split_lowerdirs(lowertmp);
@@ -849,20 +954,14 @@ static int ovl_fill_super(struct super_block *sb, void *data, int silent)
 			pr_err("overlayfs: failed to clone upperpath\n");
 			goto out_put_lowerpath;
 		}
+
 		/* Don't inherit atime flags */
 		ufs->upper_mnt->mnt_flags &= ~(MNT_NOATIME | MNT_NODIRATIME | MNT_RELATIME);
 
 		sb->s_time_gran = ufs->upper_mnt->mnt_sb->s_time_gran;
 
-		ufs->workdir = ovl_workdir_create(ufs->upper_mnt, workpath.dentry);
-		err = PTR_ERR(ufs->workdir);
-		if (IS_ERR(ufs->workdir)) {
-			pr_warn("overlayfs: failed to create directory %s/%s (errno: %i); mounting read-only\n",
-				ufs->config.workdir, OVL_WORKDIR_NAME, -err);
-			sb->s_flags |= MS_RDONLY;
-			ufs->workdir = NULL;
-		}
-
+		ufs->workdir = ovl_workdir_create(sb, ufs, workpath.dentry,
+						  OVL_WORKDIR_NAME, false);
 		/*
 		 * Upper should support d_type, else whiteouts are visible.
 		 * Given workdir and upper are on same fs, we can do
@@ -904,6 +1003,13 @@ static int ovl_fill_super(struct super_block *sb, void *data, int silent)
 			} else {
 				vfs_removexattr(ufs->workdir, OVL_XATTR_OPAQUE);
 			}
+
+			/* Check if upper/work fs supports file handles */
+			if (ufs->config.index &&
+			    !ovl_can_decode_fh(ufs->workdir->d_sb)) {
+				ufs->config.index = false;
+				pr_warn("overlayfs: upper fs does not support file handles, falling back to index=off.\n");
+			}
 		}
 	}
 
@@ -941,14 +1047,49 @@ static int ovl_fill_super(struct super_block *sb, void *data, int silent)
 	else if (ufs->upper_mnt->mnt_sb != ufs->same_sb)
 		ufs->same_sb = NULL;
 
+	if (!(ovl_force_readonly(ufs)) && ufs->config.index) {
+		/* Verify lower root is upper root origin */
+		err = ovl_verify_origin(upperpath.dentry, ufs->lower_mnt[0],
+					stack[0].dentry, false, true);
+		if (err) {
+			pr_err("overlayfs: failed to verify upper root origin\n");
+			goto out_put_lower_mnt;
+		}
+
+		ufs->indexdir = ovl_workdir_create(sb, ufs, workpath.dentry,
+						   OVL_INDEXDIR_NAME, true);
+		if (ufs->indexdir) {
+			/* Verify upper root is index dir origin */
+			err = ovl_verify_origin(ufs->indexdir, ufs->upper_mnt,
+						upperpath.dentry, true, true);
+			if (err)
+				pr_err("overlayfs: failed to verify index dir origin\n");
+
+			/* Cleanup bad/stale/orphan index entries */
+			if (!err)
+				err = ovl_indexdir_cleanup(ufs->indexdir,
+							   ufs->upper_mnt,
+							   stack, numlower);
+		}
+		if (err || !ufs->indexdir)
+			pr_warn("overlayfs: try deleting index dir or mounting with '-o index=off' to disable inodes index.\n");
+		if (err)
+			goto out_put_indexdir;
+	}
+
+	/* Show index=off/on in /proc/mounts for any of the reasons above */
+	if (!ufs->indexdir)
+		ufs->config.index = false;
+
 	if (remote)
 		sb->s_d_op = &ovl_reval_dentry_operations;
 	else
 		sb->s_d_op = &ovl_dentry_operations;
 
+	err = -ENOMEM;
 	ufs->creator_cred = cred = prepare_creds();
 	if (!cred)
-		goto out_put_lower_mnt;
+		goto out_put_indexdir;
 
 	/* Never override disk quota limits or use reserved space */
 	cap_lower(cred->cap_effective, CAP_SYS_RESOURCE);
@@ -971,12 +1112,13 @@ static int ovl_fill_super(struct super_block *sb, void *data, int silent)
 	mntput(upperpath.mnt);
 	for (i = 0; i < numlower; i++)
 		mntput(stack[i].mnt);
-	path_put(&workpath);
+	mntput(workpath.mnt);
 	kfree(lowertmp);
 
 	if (upperpath.dentry) {
-		oe->__upperdentry = upperpath.dentry;
-		oe->impure = ovl_is_impuredir(upperpath.dentry);
+		oe->has_upper = true;
+		if (ovl_is_impuredir(upperpath.dentry))
+			ovl_set_flag(OVL_IMPURE, d_inode(root_dentry));
 	}
 	for (i = 0; i < numlower; i++) {
 		oe->lowerstack[i].dentry = stack[i].dentry;
@@ -986,9 +1128,8 @@ static int ovl_fill_super(struct super_block *sb, void *data, int silent)
 
 	root_dentry->d_fsdata = oe;
 
-	realinode = d_inode(ovl_dentry_real(root_dentry));
-	ovl_inode_init(d_inode(root_dentry), realinode, !!upperpath.dentry);
-	ovl_copyattr(realinode, d_inode(root_dentry));
+	ovl_inode_init(d_inode(root_dentry), upperpath.dentry,
+		       ovl_dentry_lower(root_dentry));
 
 	sb->s_root = root_dentry;
 
@@ -998,6 +1139,8 @@ out_free_oe:
 	kfree(oe);
 out_put_cred:
 	put_cred(ufs->creator_cred);
+out_put_indexdir:
+	dput(ufs->indexdir);
 out_put_lower_mnt:
 	for (i = 0; i < ufs->numlower; i++)
 		mntput(ufs->lower_mnt[i]);
@@ -1011,8 +1154,12 @@ out_put_lowerpath:
 	kfree(stack);
 out_free_lowertmp:
 	kfree(lowertmp);
+out_unlock_workdentry:
+	ovl_inuse_unlock(workpath.dentry);
 out_put_workpath:
 	path_put(&workpath);
+out_unlock_upperdentry:
+	ovl_inuse_unlock(upperpath.dentry);
 out_put_upperpath:
 	path_put(&upperpath);
 out_free_config:
@@ -1038,14 +1185,43 @@ static struct file_system_type ovl_fs_type = {
 };
 MODULE_ALIAS_FS("overlay");
 
+static void ovl_inode_init_once(void *foo)
+{
+	struct ovl_inode *oi = foo;
+
+	inode_init_once(&oi->vfs_inode);
+}
+
 static int __init ovl_init(void)
 {
-	return register_filesystem(&ovl_fs_type);
+	int err;
+
+	ovl_inode_cachep = kmem_cache_create("ovl_inode",
+					     sizeof(struct ovl_inode), 0,
+					     (SLAB_RECLAIM_ACCOUNT|
+					      SLAB_MEM_SPREAD|SLAB_ACCOUNT),
+					     ovl_inode_init_once);
+	if (ovl_inode_cachep == NULL)
+		return -ENOMEM;
+
+	err = register_filesystem(&ovl_fs_type);
+	if (err)
+		kmem_cache_destroy(ovl_inode_cachep);
+
+	return err;
 }
 
 static void __exit ovl_exit(void)
 {
 	unregister_filesystem(&ovl_fs_type);
+
+	/*
+	 * Make sure all delayed rcu free inodes are flushed before we
+	 * destroy cache.
+	 */
+	rcu_barrier();
+	kmem_cache_destroy(ovl_inode_cachep);
+
 }
 
 module_init(ovl_init);
diff --git a/fs/overlayfs/util.c b/fs/overlayfs/util.c
index 809048913889..f46ad75dc96a 100644
--- a/fs/overlayfs/util.c
+++ b/fs/overlayfs/util.c
@@ -12,6 +12,10 @@
 #include <linux/slab.h>
 #include <linux/cred.h>
 #include <linux/xattr.h>
+#include <linux/exportfs.h>
+#include <linux/uuid.h>
+#include <linux/namei.h>
+#include <linux/ratelimit.h>
 #include "overlayfs.h"
 #include "ovl_entry.h"
 
@@ -47,6 +51,19 @@ struct super_block *ovl_same_sb(struct super_block *sb)
 	return ofs->same_sb;
 }
 
+bool ovl_can_decode_fh(struct super_block *sb)
+{
+	return (sb->s_export_op && sb->s_export_op->fh_to_dentry &&
+		!uuid_is_null(&sb->s_uuid));
+}
+
+struct dentry *ovl_indexdir(struct super_block *sb)
+{
+	struct ovl_fs *ofs = sb->s_fs_info;
+
+	return ofs->indexdir;
+}
+
 struct ovl_entry *ovl_alloc_entry(unsigned int numlower)
 {
 	size_t size = offsetof(struct ovl_entry, lowerstack[numlower]);
@@ -78,7 +95,7 @@ enum ovl_path_type ovl_path_type(struct dentry *dentry)
 	struct ovl_entry *oe = dentry->d_fsdata;
 	enum ovl_path_type type = 0;
 
-	if (oe->__upperdentry) {
+	if (ovl_dentry_upper(dentry)) {
 		type = __OVL_PATH_UPPER;
 
 		/*
@@ -99,10 +116,9 @@ enum ovl_path_type ovl_path_type(struct dentry *dentry)
 void ovl_path_upper(struct dentry *dentry, struct path *path)
 {
 	struct ovl_fs *ofs = dentry->d_sb->s_fs_info;
-	struct ovl_entry *oe = dentry->d_fsdata;
 
 	path->mnt = ofs->upper_mnt;
-	path->dentry = ovl_upperdentry_dereference(oe);
+	path->dentry = ovl_dentry_upper(dentry);
 }
 
 void ovl_path_lower(struct dentry *dentry, struct path *path)
@@ -126,47 +142,52 @@ enum ovl_path_type ovl_path_real(struct dentry *dentry, struct path *path)
 
 struct dentry *ovl_dentry_upper(struct dentry *dentry)
 {
-	struct ovl_entry *oe = dentry->d_fsdata;
-
-	return ovl_upperdentry_dereference(oe);
+	return ovl_upperdentry_dereference(OVL_I(d_inode(dentry)));
 }
 
-static struct dentry *__ovl_dentry_lower(struct ovl_entry *oe)
+struct dentry *ovl_dentry_lower(struct dentry *dentry)
 {
+	struct ovl_entry *oe = dentry->d_fsdata;
+
 	return oe->numlower ? oe->lowerstack[0].dentry : NULL;
 }
 
-struct dentry *ovl_dentry_lower(struct dentry *dentry)
+struct dentry *ovl_dentry_real(struct dentry *dentry)
 {
-	struct ovl_entry *oe = dentry->d_fsdata;
+	return ovl_dentry_upper(dentry) ?: ovl_dentry_lower(dentry);
+}
 
-	return __ovl_dentry_lower(oe);
+struct dentry *ovl_i_dentry_upper(struct inode *inode)
+{
+	return ovl_upperdentry_dereference(OVL_I(inode));
 }
 
-struct dentry *ovl_dentry_real(struct dentry *dentry)
+struct inode *ovl_inode_upper(struct inode *inode)
 {
-	struct ovl_entry *oe = dentry->d_fsdata;
-	struct dentry *realdentry;
+	struct dentry *upperdentry = ovl_i_dentry_upper(inode);
 
-	realdentry = ovl_upperdentry_dereference(oe);
-	if (!realdentry)
-		realdentry = __ovl_dentry_lower(oe);
+	return upperdentry ? d_inode(upperdentry) : NULL;
+}
 
-	return realdentry;
+struct inode *ovl_inode_lower(struct inode *inode)
+{
+	return OVL_I(inode)->lower;
 }
 
-struct ovl_dir_cache *ovl_dir_cache(struct dentry *dentry)
+struct inode *ovl_inode_real(struct inode *inode)
 {
-	struct ovl_entry *oe = dentry->d_fsdata;
+	return ovl_inode_upper(inode) ?: ovl_inode_lower(inode);
+}
 
-	return oe->cache;
+
+struct ovl_dir_cache *ovl_dir_cache(struct dentry *dentry)
+{
+	return OVL_I(d_inode(dentry))->cache;
 }
 
 void ovl_set_dir_cache(struct dentry *dentry, struct ovl_dir_cache *cache)
 {
-	struct ovl_entry *oe = dentry->d_fsdata;
-
-	oe->cache = cache;
+	OVL_I(d_inode(dentry))->cache = cache;
 }
 
 bool ovl_dentry_is_opaque(struct dentry *dentry)
@@ -175,23 +196,35 @@ bool ovl_dentry_is_opaque(struct dentry *dentry)
 	return oe->opaque;
 }
 
-bool ovl_dentry_is_impure(struct dentry *dentry)
+bool ovl_dentry_is_whiteout(struct dentry *dentry)
+{
+	return !dentry->d_inode && ovl_dentry_is_opaque(dentry);
+}
+
+void ovl_dentry_set_opaque(struct dentry *dentry)
 {
 	struct ovl_entry *oe = dentry->d_fsdata;
 
-	return oe->impure;
+	oe->opaque = true;
 }
 
-bool ovl_dentry_is_whiteout(struct dentry *dentry)
+/*
+ * For hard links it's possible for ovl_dentry_upper() to return positive, while
+ * there's no actual upper alias for the inode.  Copy up code needs to know
+ * about the existence of the upper alias, so it can't use ovl_dentry_upper().
+ */
+bool ovl_dentry_has_upper_alias(struct dentry *dentry)
 {
-	return !dentry->d_inode && ovl_dentry_is_opaque(dentry);
+	struct ovl_entry *oe = dentry->d_fsdata;
+
+	return oe->has_upper;
 }
 
-void ovl_dentry_set_opaque(struct dentry *dentry)
+void ovl_dentry_set_upper_alias(struct dentry *dentry)
 {
 	struct ovl_entry *oe = dentry->d_fsdata;
 
-	oe->opaque = true;
+	oe->has_upper = true;
 }
 
 bool ovl_redirect_dir(struct super_block *sb)
@@ -203,63 +236,59 @@ bool ovl_redirect_dir(struct super_block *sb)
 
 const char *ovl_dentry_get_redirect(struct dentry *dentry)
 {
-	struct ovl_entry *oe = dentry->d_fsdata;
-
-	return oe->redirect;
+	return OVL_I(d_inode(dentry))->redirect;
 }
 
 void ovl_dentry_set_redirect(struct dentry *dentry, const char *redirect)
 {
-	struct ovl_entry *oe = dentry->d_fsdata;
+	struct ovl_inode *oi = OVL_I(d_inode(dentry));
 
-	kfree(oe->redirect);
-	oe->redirect = redirect;
+	kfree(oi->redirect);
+	oi->redirect = redirect;
 }
 
-void ovl_dentry_update(struct dentry *dentry, struct dentry *upperdentry)
+void ovl_inode_init(struct inode *inode, struct dentry *upperdentry,
+		    struct dentry *lowerdentry)
 {
-	struct ovl_entry *oe = dentry->d_fsdata;
+	if (upperdentry)
+		OVL_I(inode)->__upperdentry = upperdentry;
+	if (lowerdentry)
+		OVL_I(inode)->lower = d_inode(lowerdentry);
 
-	WARN_ON(!inode_is_locked(upperdentry->d_parent->d_inode));
-	WARN_ON(oe->__upperdentry);
-	/*
-	 * Make sure upperdentry is consistent before making it visible to
-	 * ovl_upperdentry_dereference().
-	 */
-	smp_wmb();
-	oe->__upperdentry = upperdentry;
+	ovl_copyattr(d_inode(upperdentry ?: lowerdentry), inode);
 }
 
-void ovl_inode_init(struct inode *inode, struct inode *realinode, bool is_upper)
+void ovl_inode_update(struct inode *inode, struct dentry *upperdentry)
 {
-	WRITE_ONCE(inode->i_private, (unsigned long) realinode |
-		   (is_upper ? OVL_ISUPPER_MASK : 0));
-}
+	struct inode *upperinode = d_inode(upperdentry);
 
-void ovl_inode_update(struct inode *inode, struct inode *upperinode)
-{
-	WARN_ON(!upperinode);
-	WARN_ON(!inode_unhashed(inode));
-	WRITE_ONCE(inode->i_private,
-		   (unsigned long) upperinode | OVL_ISUPPER_MASK);
-	if (!S_ISDIR(upperinode->i_mode))
+	WARN_ON(OVL_I(inode)->__upperdentry);
+
+	/*
+	 * Make sure upperdentry is consistent before making it visible
+	 */
+	smp_wmb();
+	OVL_I(inode)->__upperdentry = upperdentry;
+	if (!S_ISDIR(upperinode->i_mode) && inode_unhashed(inode)) {
+		inode->i_private = upperinode;
 		__insert_inode_hash(inode, (unsigned long) upperinode);
+	}
 }
 
 void ovl_dentry_version_inc(struct dentry *dentry)
 {
-	struct ovl_entry *oe = dentry->d_fsdata;
+	struct inode *inode = d_inode(dentry);
 
-	WARN_ON(!inode_is_locked(dentry->d_inode));
-	oe->version++;
+	WARN_ON(!inode_is_locked(inode));
+	OVL_I(inode)->version++;
 }
 
 u64 ovl_dentry_version_get(struct dentry *dentry)
 {
-	struct ovl_entry *oe = dentry->d_fsdata;
+	struct inode *inode = d_inode(dentry);
 
-	WARN_ON(!inode_is_locked(dentry->d_inode));
-	return oe->version;
+	WARN_ON(!inode_is_locked(inode));
+	return OVL_I(inode)->version;
 }
 
 bool ovl_is_whiteout(struct dentry *dentry)
@@ -276,32 +305,21 @@ struct file *ovl_path_open(struct path *path, int flags)
 
 int ovl_copy_up_start(struct dentry *dentry)
 {
-	struct ovl_fs *ofs = dentry->d_sb->s_fs_info;
-	struct ovl_entry *oe = dentry->d_fsdata;
+	struct ovl_inode *oi = OVL_I(d_inode(dentry));
 	int err;
 
-	spin_lock(&ofs->copyup_wq.lock);
-	err = wait_event_interruptible_locked(ofs->copyup_wq, !oe->copying);
-	if (!err) {
-		if (oe->__upperdentry)
-			err = 1; /* Already copied up */
-		else
-			oe->copying = true;
+	err = mutex_lock_interruptible(&oi->lock);
+	if (!err && ovl_dentry_has_upper_alias(dentry)) {
+		err = 1; /* Already copied up */
+		mutex_unlock(&oi->lock);
 	}
-	spin_unlock(&ofs->copyup_wq.lock);
 
 	return err;
 }
 
 void ovl_copy_up_end(struct dentry *dentry)
 {
-	struct ovl_fs *ofs = dentry->d_sb->s_fs_info;
-	struct ovl_entry *oe = dentry->d_fsdata;
-
-	spin_lock(&ofs->copyup_wq.lock);
-	oe->copying = false;
-	wake_up_locked(&ofs->copyup_wq);
-	spin_unlock(&ofs->copyup_wq.lock);
+	mutex_unlock(&OVL_I(d_inode(dentry))->lock);
 }
 
 bool ovl_check_dir_xattr(struct dentry *dentry, const char *name)
@@ -343,9 +361,8 @@ int ovl_check_setxattr(struct dentry *dentry, struct dentry *upperdentry,
 int ovl_set_impure(struct dentry *dentry, struct dentry *upperdentry)
 {
 	int err;
-	struct ovl_entry *oe = dentry->d_fsdata;
 
-	if (oe->impure)
+	if (ovl_test_flag(OVL_IMPURE, d_inode(dentry)))
 		return 0;
 
 	/*
@@ -355,7 +372,176 @@ int ovl_set_impure(struct dentry *dentry, struct dentry *upperdentry)
 	err = ovl_check_setxattr(dentry, upperdentry, OVL_XATTR_IMPURE,
 				 "y", 1, 0);
 	if (!err)
-		oe->impure = true;
+		ovl_set_flag(OVL_IMPURE, d_inode(dentry));
 
 	return err;
 }
+
+void ovl_set_flag(unsigned long flag, struct inode *inode)
+{
+	set_bit(flag, &OVL_I(inode)->flags);
+}
+
+bool ovl_test_flag(unsigned long flag, struct inode *inode)
+{
+	return test_bit(flag, &OVL_I(inode)->flags);
+}
+
+/**
+ * Caller must hold a reference to inode to prevent it from being freed while
+ * it is marked inuse.
+ */
+bool ovl_inuse_trylock(struct dentry *dentry)
+{
+	struct inode *inode = d_inode(dentry);
+	bool locked = false;
+
+	spin_lock(&inode->i_lock);
+	if (!(inode->i_state & I_OVL_INUSE)) {
+		inode->i_state |= I_OVL_INUSE;
+		locked = true;
+	}
+	spin_unlock(&inode->i_lock);
+
+	return locked;
+}
+
+void ovl_inuse_unlock(struct dentry *dentry)
+{
+	if (dentry) {
+		struct inode *inode = d_inode(dentry);
+
+		spin_lock(&inode->i_lock);
+		WARN_ON(!(inode->i_state & I_OVL_INUSE));
+		inode->i_state &= ~I_OVL_INUSE;
+		spin_unlock(&inode->i_lock);
+	}
+}
+
+/* Called must hold OVL_I(inode)->oi_lock */
+static void ovl_cleanup_index(struct dentry *dentry)
+{
+	struct inode *dir = ovl_indexdir(dentry->d_sb)->d_inode;
+	struct dentry *lowerdentry = ovl_dentry_lower(dentry);
+	struct dentry *upperdentry = ovl_dentry_upper(dentry);
+	struct dentry *index = NULL;
+	struct inode *inode;
+	struct qstr name;
+	int err;
+
+	err = ovl_get_index_name(lowerdentry, &name);
+	if (err)
+		goto fail;
+
+	inode = d_inode(upperdentry);
+	if (inode->i_nlink != 1) {
+		pr_warn_ratelimited("overlayfs: cleanup linked index (%pd2, ino=%lu, nlink=%u)\n",
+				    upperdentry, inode->i_ino, inode->i_nlink);
+		/*
+		 * We either have a bug with persistent union nlink or a lower
+		 * hardlink was added while overlay is mounted. Adding a lower
+		 * hardlink and then unlinking all overlay hardlinks would drop
+		 * overlay nlink to zero before all upper inodes are unlinked.
+		 * As a safety measure, when that situation is detected, set
+		 * the overlay nlink to the index inode nlink minus one for the
+		 * index entry itself.
+		 */
+		set_nlink(d_inode(dentry), inode->i_nlink - 1);
+		ovl_set_nlink_upper(dentry);
+		goto out;
+	}
+
+	inode_lock_nested(dir, I_MUTEX_PARENT);
+	/* TODO: whiteout instead of cleanup to block future open by handle */
+	index = lookup_one_len(name.name, ovl_indexdir(dentry->d_sb), name.len);
+	err = PTR_ERR(index);
+	if (!IS_ERR(index))
+		err = ovl_cleanup(dir, index);
+	inode_unlock(dir);
+	if (err)
+		goto fail;
+
+out:
+	dput(index);
+	return;
+
+fail:
+	pr_err("overlayfs: cleanup index of '%pd2' failed (%i)\n", dentry, err);
+	goto out;
+}
+
+/*
+ * Operations that change overlay inode and upper inode nlink need to be
+ * synchronized with copy up for persistent nlink accounting.
+ */
+int ovl_nlink_start(struct dentry *dentry, bool *locked)
+{
+	struct ovl_inode *oi = OVL_I(d_inode(dentry));
+	const struct cred *old_cred;
+	int err;
+
+	if (!d_inode(dentry) || d_is_dir(dentry))
+		return 0;
+
+	/*
+	 * With inodes index is enabled, we store the union overlay nlink
+	 * in an xattr on the index inode. When whiting out lower hardlinks
+	 * we need to decrement the overlay persistent nlink, but before the
+	 * first copy up, we have no upper index inode to store the xattr.
+	 *
+	 * As a workaround, before whiteout/rename over of a lower hardlink,
+	 * copy up to create the upper index. Creating the upper index will
+	 * initialize the overlay nlink, so it could be dropped if unlink
+	 * or rename succeeds.
+	 *
+	 * TODO: implement metadata only index copy up when called with
+	 *       ovl_copy_up_flags(dentry, O_PATH).
+	 */
+	if (ovl_indexdir(dentry->d_sb) && !ovl_dentry_has_upper_alias(dentry) &&
+	    d_inode(ovl_dentry_lower(dentry))->i_nlink > 1) {
+		err = ovl_copy_up(dentry);
+		if (err)
+			return err;
+	}
+
+	err = mutex_lock_interruptible(&oi->lock);
+	if (err)
+		return err;
+
+	if (!ovl_test_flag(OVL_INDEX, d_inode(dentry)))
+		goto out;
+
+	old_cred = ovl_override_creds(dentry->d_sb);
+	/*
+	 * The overlay inode nlink should be incremented/decremented IFF the
+	 * upper operation succeeds, along with nlink change of upper inode.
+	 * Therefore, before link/unlink/rename, we store the union nlink
+	 * value relative to the upper inode nlink in an upper inode xattr.
+	 */
+	err = ovl_set_nlink_upper(dentry);
+	revert_creds(old_cred);
+
+out:
+	if (err)
+		mutex_unlock(&oi->lock);
+	else
+		*locked = true;
+
+	return err;
+}
+
+void ovl_nlink_end(struct dentry *dentry, bool locked)
+{
+	if (locked) {
+		if (ovl_test_flag(OVL_INDEX, d_inode(dentry)) &&
+		    d_inode(dentry)->i_nlink == 0) {
+			const struct cred *old_cred;
+
+			old_cred = ovl_override_creds(dentry->d_sb);
+			ovl_cleanup_index(dentry);
+			revert_creds(old_cred);
+		}
+
+		mutex_unlock(&OVL_I(d_inode(dentry))->lock);
+	}
+}
diff --git a/fs/pipe.c b/fs/pipe.c
index 73b84baf58f8..97e5be897753 100644
--- a/fs/pipe.c
+++ b/fs/pipe.c
@@ -739,13 +739,12 @@ int create_pipe_files(struct file **res, int flags)
 	struct inode *inode = get_pipe_inode();
 	struct file *f;
 	struct path path;
-	static struct qstr name = { .name = "" };
 
 	if (!inode)
 		return -ENFILE;
 
 	err = -ENOMEM;
-	path.dentry = d_alloc_pseudo(pipe_mnt->mnt_sb, &name);
+	path.dentry = d_alloc_pseudo(pipe_mnt->mnt_sb, &empty_name);
 	if (!path.dentry)
 		goto err_inode;
 	path.mnt = mntget(pipe_mnt);
diff --git a/fs/proc/base.c b/fs/proc/base.c
index f1e1927ccd48..719c2e943ea1 100644
--- a/fs/proc/base.c
+++ b/fs/proc/base.c
@@ -1355,6 +1355,49 @@ static const struct file_operations proc_fault_inject_operations = {
 	.write		= proc_fault_inject_write,
 	.llseek		= generic_file_llseek,
 };
+
+static ssize_t proc_fail_nth_write(struct file *file, const char __user *buf,
+				   size_t count, loff_t *ppos)
+{
+	struct task_struct *task;
+	int err;
+	unsigned int n;
+
+	err = kstrtouint_from_user(buf, count, 0, &n);
+	if (err)
+		return err;
+
+	task = get_proc_task(file_inode(file));
+	if (!task)
+		return -ESRCH;
+	WRITE_ONCE(task->fail_nth, n);
+	put_task_struct(task);
+
+	return count;
+}
+
+static ssize_t proc_fail_nth_read(struct file *file, char __user *buf,
+				  size_t count, loff_t *ppos)
+{
+	struct task_struct *task;
+	char numbuf[PROC_NUMBUF];
+	ssize_t len;
+
+	task = get_proc_task(file_inode(file));
+	if (!task)
+		return -ESRCH;
+	len = snprintf(numbuf, sizeof(numbuf), "%u\n",
+			READ_ONCE(task->fail_nth));
+	len = simple_read_from_buffer(buf, count, ppos, numbuf, len);
+	put_task_struct(task);
+
+	return len;
+}
+
+static const struct file_operations proc_fail_nth_operations = {
+	.read		= proc_fail_nth_read,
+	.write		= proc_fail_nth_write,
+};
 #endif
 
 
@@ -2919,6 +2962,7 @@ static const struct pid_entry tgid_base_stuff[] = {
 #endif
 #ifdef CONFIG_FAULT_INJECTION
 	REG("make-it-fail", S_IRUGO|S_IWUSR, proc_fault_inject_operations),
+	REG("fail-nth", 0644, proc_fail_nth_operations),
 #endif
 #ifdef CONFIG_ELF_CORE
 	REG("coredump_filter", S_IRUGO|S_IWUSR, proc_coredump_filter_operations),
@@ -3311,6 +3355,7 @@ static const struct pid_entry tid_base_stuff[] = {
 #endif
 #ifdef CONFIG_FAULT_INJECTION
 	REG("make-it-fail", S_IRUGO|S_IWUSR, proc_fault_inject_operations),
+	REG("fail-nth", 0644, proc_fail_nth_operations),
 #endif
 #ifdef CONFIG_TASK_IO_ACCOUNTING
 	ONE("io",	S_IRUSR, proc_tid_io_accounting),
diff --git a/fs/proc/internal.h b/fs/proc/internal.h
index c5ae09b6c726..aa2b89071630 100644
--- a/fs/proc/internal.h
+++ b/fs/proc/internal.h
@@ -51,7 +51,7 @@ struct proc_dir_entry {
 	spinlock_t pde_unload_lock; /* proc_fops checks and pde_users bumps */
 	u8 namelen;
 	char name[];
-};
+} __randomize_layout;
 
 union proc_op {
 	int (*proc_get_link)(struct dentry *, struct path *);
@@ -67,10 +67,10 @@ struct proc_inode {
 	struct proc_dir_entry *pde;
 	struct ctl_table_header *sysctl;
 	struct ctl_table *sysctl_entry;
-	struct list_head sysctl_inodes;
+	struct hlist_node sysctl_inodes;
 	const struct proc_ns_operations *ns_ops;
 	struct inode vfs_inode;
-};
+} __randomize_layout;
 
 /*
  * General functions
@@ -279,7 +279,7 @@ struct proc_maps_private {
 #ifdef CONFIG_NUMA
 	struct mempolicy *task_mempolicy;
 #endif
-};
+} __randomize_layout;
 
 struct mm_struct *proc_mem_open(struct inode *inode, unsigned int mode);
 
diff --git a/fs/proc/meminfo.c b/fs/proc/meminfo.c
index 8a428498d6b2..509a61668d90 100644
--- a/fs/proc/meminfo.c
+++ b/fs/proc/meminfo.c
@@ -106,13 +106,13 @@ static int meminfo_proc_show(struct seq_file *m, void *v)
 		    global_node_page_state(NR_FILE_MAPPED));
 	show_val_kb(m, "Shmem:          ", i.sharedram);
 	show_val_kb(m, "Slab:           ",
-		    global_page_state(NR_SLAB_RECLAIMABLE) +
-		    global_page_state(NR_SLAB_UNRECLAIMABLE));
+		    global_node_page_state(NR_SLAB_RECLAIMABLE) +
+		    global_node_page_state(NR_SLAB_UNRECLAIMABLE));
 
 	show_val_kb(m, "SReclaimable:   ",
-		    global_page_state(NR_SLAB_RECLAIMABLE));
+		    global_node_page_state(NR_SLAB_RECLAIMABLE));
 	show_val_kb(m, "SUnreclaim:     ",
-		    global_page_state(NR_SLAB_UNRECLAIMABLE));
+		    global_node_page_state(NR_SLAB_UNRECLAIMABLE));
 	seq_printf(m, "KernelStack:    %8lu kB\n",
 		   global_page_state(NR_KERNEL_STACK_KB));
 	show_val_kb(m, "PageTables:     ",
diff --git a/fs/proc/proc_sysctl.c b/fs/proc/proc_sysctl.c
index 67985a7233c2..8f479229b349 100644
--- a/fs/proc/proc_sysctl.c
+++ b/fs/proc/proc_sysctl.c
@@ -191,7 +191,7 @@ static void init_header(struct ctl_table_header *head,
 	head->set = set;
 	head->parent = NULL;
 	head->node = node;
-	INIT_LIST_HEAD(&head->inodes);
+	INIT_HLIST_HEAD(&head->inodes);
 	if (node) {
 		struct ctl_table *entry;
 		for (entry = table; entry->procname; entry++, node++)
@@ -261,25 +261,42 @@ static void unuse_table(struct ctl_table_header *p)
 			complete(p->unregistering);
 }
 
-/* called under sysctl_lock */
 static void proc_sys_prune_dcache(struct ctl_table_header *head)
 {
-	struct inode *inode, *prev = NULL;
+	struct inode *inode;
 	struct proc_inode *ei;
+	struct hlist_node *node;
+	struct super_block *sb;
 
 	rcu_read_lock();
-	list_for_each_entry_rcu(ei, &head->inodes, sysctl_inodes) {
-		inode = igrab(&ei->vfs_inode);
-		if (inode) {
-			rcu_read_unlock();
-			iput(prev);
-			prev = inode;
-			d_prune_aliases(inode);
+	for (;;) {
+		node = hlist_first_rcu(&head->inodes);
+		if (!node)
+			break;
+		ei = hlist_entry(node, struct proc_inode, sysctl_inodes);
+		spin_lock(&sysctl_lock);
+		hlist_del_init_rcu(&ei->sysctl_inodes);
+		spin_unlock(&sysctl_lock);
+
+		inode = &ei->vfs_inode;
+		sb = inode->i_sb;
+		if (!atomic_inc_not_zero(&sb->s_active))
+			continue;
+		inode = igrab(inode);
+		rcu_read_unlock();
+		if (unlikely(!inode)) {
+			deactivate_super(sb);
 			rcu_read_lock();
+			continue;
 		}
+
+		d_prune_aliases(inode);
+		iput(inode);
+		deactivate_super(sb);
+
+		rcu_read_lock();
 	}
 	rcu_read_unlock();
-	iput(prev);
 }
 
 /* called under sysctl_lock, will reacquire if has to wait */
@@ -461,7 +478,7 @@ static struct inode *proc_sys_make_inode(struct super_block *sb,
 	}
 	ei->sysctl = head;
 	ei->sysctl_entry = table;
-	list_add_rcu(&ei->sysctl_inodes, &head->inodes);
+	hlist_add_head_rcu(&ei->sysctl_inodes, &head->inodes);
 	head->count++;
 	spin_unlock(&sysctl_lock);
 
@@ -489,7 +506,7 @@ out:
 void proc_sys_evict_inode(struct inode *inode, struct ctl_table_header *head)
 {
 	spin_lock(&sysctl_lock);
-	list_del_rcu(&PROC_I(inode)->sysctl_inodes);
+	hlist_del_init_rcu(&PROC_I(inode)->sysctl_inodes);
 	if (!--head->count)
 		kfree_rcu(head, rcu);
 	spin_unlock(&sysctl_lock);
@@ -1061,16 +1078,30 @@ static int sysctl_err(const char *path, struct ctl_table *table, char *fmt, ...)
 	return -EINVAL;
 }
 
+static int sysctl_check_table_array(const char *path, struct ctl_table *table)
+{
+	int err = 0;
+
+	if ((table->proc_handler == proc_douintvec) ||
+	    (table->proc_handler == proc_douintvec_minmax)) {
+		if (table->maxlen != sizeof(unsigned int))
+			err |= sysctl_err(path, table, "array now allowed");
+	}
+
+	return err;
+}
+
 static int sysctl_check_table(const char *path, struct ctl_table *table)
 {
 	int err = 0;
 	for (; table->procname; table++) {
 		if (table->child)
-			err = sysctl_err(path, table, "Not a file");
+			err |= sysctl_err(path, table, "Not a file");
 
 		if ((table->proc_handler == proc_dostring) ||
 		    (table->proc_handler == proc_dointvec) ||
 		    (table->proc_handler == proc_douintvec) ||
+		    (table->proc_handler == proc_douintvec_minmax) ||
 		    (table->proc_handler == proc_dointvec_minmax) ||
 		    (table->proc_handler == proc_dointvec_jiffies) ||
 		    (table->proc_handler == proc_dointvec_userhz_jiffies) ||
@@ -1078,15 +1109,17 @@ static int sysctl_check_table(const char *path, struct ctl_table *table)
 		    (table->proc_handler == proc_doulongvec_minmax) ||
 		    (table->proc_handler == proc_doulongvec_ms_jiffies_minmax)) {
 			if (!table->data)
-				err = sysctl_err(path, table, "No data");
+				err |= sysctl_err(path, table, "No data");
 			if (!table->maxlen)
-				err = sysctl_err(path, table, "No maxlen");
+				err |= sysctl_err(path, table, "No maxlen");
+			else
+				err |= sysctl_check_table_array(path, table);
 		}
 		if (!table->proc_handler)
-			err = sysctl_err(path, table, "No proc_handler");
+			err |= sysctl_err(path, table, "No proc_handler");
 
 		if ((table->mode & (S_IRUGO|S_IWUGO)) != table->mode)
-			err = sysctl_err(path, table, "bogus .mode 0%o",
+			err |= sysctl_err(path, table, "bogus .mode 0%o",
 				table->mode);
 	}
 	return err;
diff --git a/fs/proc/task_mmu.c b/fs/proc/task_mmu.c
index b836fd61ed87..fe8f3265e877 100644
--- a/fs/proc/task_mmu.c
+++ b/fs/proc/task_mmu.c
@@ -16,9 +16,10 @@
 #include <linux/mmu_notifier.h>
 #include <linux/page_idle.h>
 #include <linux/shmem_fs.h>
+#include <linux/uaccess.h>
 
 #include <asm/elf.h>
-#include <linux/uaccess.h>
+#include <asm/tlb.h>
 #include <asm/tlbflush.h>
 #include "internal.h"
 
@@ -1008,6 +1009,7 @@ static ssize_t clear_refs_write(struct file *file, const char __user *buf,
 	struct mm_struct *mm;
 	struct vm_area_struct *vma;
 	enum clear_refs_types type;
+	struct mmu_gather tlb;
 	int itype;
 	int rv;
 
@@ -1054,6 +1056,7 @@ static ssize_t clear_refs_write(struct file *file, const char __user *buf,
 		}
 
 		down_read(&mm->mmap_sem);
+		tlb_gather_mmu(&tlb, mm, 0, -1);
 		if (type == CLEAR_REFS_SOFT_DIRTY) {
 			for (vma = mm->mmap; vma; vma = vma->vm_next) {
 				if (!(vma->vm_flags & VM_SOFTDIRTY))
@@ -1075,7 +1078,7 @@ static ssize_t clear_refs_write(struct file *file, const char __user *buf,
 		walk_page_range(0, mm->highest_vm_end, &clear_refs_walk);
 		if (type == CLEAR_REFS_SOFT_DIRTY)
 			mmu_notifier_invalidate_range_end(mm, 0, -1);
-		flush_tlb_mm(mm);
+		tlb_finish_mmu(&tlb, 0, -1);
 		up_read(&mm->mmap_sem);
 out_mm:
 		mmput(mm);
diff --git a/fs/pstore/inode.c b/fs/pstore/inode.c
index 4d02c3b65061..fefd22611cf6 100644
--- a/fs/pstore/inode.c
+++ b/fs/pstore/inode.c
@@ -283,6 +283,16 @@ static void parse_options(char *options)
 	}
 }
 
+/*
+ * Display the mount options in /proc/mounts.
+ */
+static int pstore_show_options(struct seq_file *m, struct dentry *root)
+{
+	if (kmsg_bytes != PSTORE_DEFAULT_KMSG_BYTES)
+		seq_printf(m, ",kmsg_bytes=%lu", kmsg_bytes);
+	return 0;
+}
+
 static int pstore_remount(struct super_block *sb, int *flags, char *data)
 {
 	sync_filesystem(sb);
@@ -296,7 +306,7 @@ static const struct super_operations pstore_ops = {
 	.drop_inode	= generic_delete_inode,
 	.evict_inode	= pstore_evict_inode,
 	.remount_fs	= pstore_remount,
-	.show_options	= generic_show_options,
+	.show_options	= pstore_show_options,
 };
 
 static struct super_block *pstore_sb;
@@ -448,8 +458,6 @@ static int pstore_fill_super(struct super_block *sb, void *data, int silent)
 {
 	struct inode *inode;
 
-	save_mount_options(sb, data);
-
 	pstore_sb = sb;
 
 	sb->s_maxbytes		= MAX_LFS_FILESIZE;
diff --git a/fs/pstore/internal.h b/fs/pstore/internal.h
index 58051265626f..7f4e48c8d188 100644
--- a/fs/pstore/internal.h
+++ b/fs/pstore/internal.h
@@ -5,6 +5,9 @@
 #include <linux/time.h>
 #include <linux/pstore.h>
 
+#define PSTORE_DEFAULT_KMSG_BYTES 10240
+extern unsigned long kmsg_bytes;
+
 #ifdef CONFIG_PSTORE_FTRACE
 extern void pstore_register_ftrace(void);
 extern void pstore_unregister_ftrace(void);
diff --git a/fs/pstore/platform.c b/fs/pstore/platform.c
index 1b6e0ff6bff5..2b21d180157c 100644
--- a/fs/pstore/platform.c
+++ b/fs/pstore/platform.c
@@ -99,7 +99,7 @@ static char *big_oops_buf;
 static size_t big_oops_buf_sz;
 
 /* How much of the console log to snapshot */
-static unsigned long kmsg_bytes = 10240;
+unsigned long kmsg_bytes = PSTORE_DEFAULT_KMSG_BYTES;
 
 void pstore_set_kmsg_bytes(int bytes)
 {
diff --git a/fs/quota/dquot.c b/fs/quota/dquot.c
index 53a17496c5c5..566e6ef99f07 100644
--- a/fs/quota/dquot.c
+++ b/fs/quota/dquot.c
@@ -1124,6 +1124,10 @@ void dquot_free_reserved_space(struct dquot *dquot, qsize_t number)
 		WARN_ON_ONCE(1);
 		dquot->dq_dqb.dqb_rsvspace = 0;
 	}
+	if (dquot->dq_dqb.dqb_curspace + dquot->dq_dqb.dqb_rsvspace <=
+	    dquot->dq_dqb.dqb_bsoftlimit)
+		dquot->dq_dqb.dqb_btime = (time64_t) 0;
+	clear_bit(DQ_BLKS_B, &dquot->dq_flags);
 }
 
 static void dquot_decr_inodes(struct dquot *dquot, qsize_t number)
@@ -1145,7 +1149,8 @@ static void dquot_decr_space(struct dquot *dquot, qsize_t number)
 		dquot->dq_dqb.dqb_curspace -= number;
 	else
 		dquot->dq_dqb.dqb_curspace = 0;
-	if (dquot->dq_dqb.dqb_curspace <= dquot->dq_dqb.dqb_bsoftlimit)
+	if (dquot->dq_dqb.dqb_curspace + dquot->dq_dqb.dqb_rsvspace <=
+	    dquot->dq_dqb.dqb_bsoftlimit)
 		dquot->dq_dqb.dqb_btime = (time64_t) 0;
 	clear_bit(DQ_BLKS_B, &dquot->dq_flags);
 }
@@ -1381,14 +1386,18 @@ static int info_idq_free(struct dquot *dquot, qsize_t inodes)
 
 static int info_bdq_free(struct dquot *dquot, qsize_t space)
 {
+	qsize_t tspace;
+
+	tspace = dquot->dq_dqb.dqb_curspace + dquot->dq_dqb.dqb_rsvspace;
+
 	if (test_bit(DQ_FAKE_B, &dquot->dq_flags) ||
-	    dquot->dq_dqb.dqb_curspace <= dquot->dq_dqb.dqb_bsoftlimit)
+	    tspace <= dquot->dq_dqb.dqb_bsoftlimit)
 		return QUOTA_NL_NOWARN;
 
-	if (dquot->dq_dqb.dqb_curspace - space <= dquot->dq_dqb.dqb_bsoftlimit)
+	if (tspace - space <= dquot->dq_dqb.dqb_bsoftlimit)
 		return QUOTA_NL_BSOFTBELOW;
-	if (dquot->dq_dqb.dqb_curspace >= dquot->dq_dqb.dqb_bhardlimit &&
-	    dquot->dq_dqb.dqb_curspace - space < dquot->dq_dqb.dqb_bhardlimit)
+	if (tspace >= dquot->dq_dqb.dqb_bhardlimit &&
+	    tspace - space < dquot->dq_dqb.dqb_bhardlimit)
 		return QUOTA_NL_BHARDBELOW;
 	return QUOTA_NL_NOWARN;
 }
@@ -2681,7 +2690,7 @@ static int do_set_dqblk(struct dquot *dquot, struct qc_dqblk *di)
 
 	if (check_blim) {
 		if (!dm->dqb_bsoftlimit ||
-		    dm->dqb_curspace < dm->dqb_bsoftlimit) {
+		    dm->dqb_curspace + dm->dqb_rsvspace < dm->dqb_bsoftlimit) {
 			dm->dqb_btime = 0;
 			clear_bit(DQ_BLKS_B, &dquot->dq_flags);
 		} else if (!(di->d_fieldmask & QC_SPC_TIMER))
diff --git a/fs/ramfs/inode.c b/fs/ramfs/inode.c
index 26e45863e499..11201b2d06b9 100644
--- a/fs/ramfs/inode.c
+++ b/fs/ramfs/inode.c
@@ -38,6 +38,14 @@
 #include <linux/uaccess.h>
 #include "internal.h"
 
+struct ramfs_mount_opts {
+	umode_t mode;
+};
+
+struct ramfs_fs_info {
+	struct ramfs_mount_opts mount_opts;
+};
+
 #define RAMFS_DEFAULT_MODE	0755
 
 static const struct super_operations ramfs_ops;
@@ -149,14 +157,22 @@ static const struct inode_operations ramfs_dir_inode_operations = {
 	.rename		= simple_rename,
 };
 
+/*
+ * Display the mount options in /proc/mounts.
+ */
+static int ramfs_show_options(struct seq_file *m, struct dentry *root)
+{
+	struct ramfs_fs_info *fsi = root->d_sb->s_fs_info;
+
+	if (fsi->mount_opts.mode != RAMFS_DEFAULT_MODE)
+		seq_printf(m, ",mode=%o", fsi->mount_opts.mode);
+	return 0;
+}
+
 static const struct super_operations ramfs_ops = {
 	.statfs		= simple_statfs,
 	.drop_inode	= generic_delete_inode,
-	.show_options	= generic_show_options,
-};
-
-struct ramfs_mount_opts {
-	umode_t mode;
+	.show_options	= ramfs_show_options,
 };
 
 enum {
@@ -169,10 +185,6 @@ static const match_table_t tokens = {
 	{Opt_err, NULL}
 };
 
-struct ramfs_fs_info {
-	struct ramfs_mount_opts mount_opts;
-};
-
 static int ramfs_parse_options(char *data, struct ramfs_mount_opts *opts)
 {
 	substring_t args[MAX_OPT_ARGS];
@@ -211,8 +223,6 @@ int ramfs_fill_super(struct super_block *sb, void *data, int silent)
 	struct inode *inode;
 	int err;
 
-	save_mount_options(sb, data);
-
 	fsi = kzalloc(sizeof(struct ramfs_fs_info), GFP_KERNEL);
 	sb->s_fs_info = fsi;
 	if (!fsi)
diff --git a/fs/reiserfs/bitmap.c b/fs/reiserfs/bitmap.c
index dc198bc64c61..edc8ef78b63f 100644
--- a/fs/reiserfs/bitmap.c
+++ b/fs/reiserfs/bitmap.c
@@ -513,9 +513,17 @@ static void __discard_prealloc(struct reiserfs_transaction_handle *th,
 			       "inode has negative prealloc blocks count.");
 #endif
 	while (ei->i_prealloc_count > 0) {
-		reiserfs_free_prealloc_block(th, inode, ei->i_prealloc_block);
-		ei->i_prealloc_block++;
+		b_blocknr_t block_to_free;
+
+		/*
+		 * reiserfs_free_prealloc_block can drop the write lock,
+		 * which could allow another caller to free the same block.
+		 * We can protect against it by modifying the prealloc
+		 * state before calling it.
+		 */
+		block_to_free = ei->i_prealloc_block++;
 		ei->i_prealloc_count--;
+		reiserfs_free_prealloc_block(th, inode, block_to_free);
 		dirty = 1;
 	}
 	if (dirty)
@@ -1128,7 +1136,7 @@ static int determine_prealloc_size(reiserfs_blocknr_hint_t * hint)
 	hint->prealloc_size = 0;
 
 	if (!hint->formatted_node && hint->preallocate) {
-		if (S_ISREG(hint->inode->i_mode)
+		if (S_ISREG(hint->inode->i_mode) && !IS_PRIVATE(hint->inode)
 		    && hint->inode->i_size >=
 		    REISERFS_SB(hint->th->t_super)->s_alloc_options.
 		    preallocmin * hint->inode->i_sb->s_blocksize)
diff --git a/fs/reiserfs/super.c b/fs/reiserfs/super.c
index 685f1e056998..306e4e9d172d 100644
--- a/fs/reiserfs/super.c
+++ b/fs/reiserfs/super.c
@@ -1599,8 +1599,6 @@ static int reiserfs_remount(struct super_block *s, int *mount_flags, char *arg)
 	}
 
 out_ok_unlocked:
-	if (new_opts)
-		replace_mount_options(s, new_opts);
 	return 0;
 
 out_err_unlock:
@@ -1916,8 +1914,6 @@ static int reiserfs_fill_super(struct super_block *s, void *data, int silent)
 	char *qf_names[REISERFS_MAXQUOTAS] = {};
 	unsigned int qfmt = 0;
 
-	save_mount_options(s, data);
-
 	sbi = kzalloc(sizeof(struct reiserfs_sb_info), GFP_KERNEL);
 	if (!sbi)
 		return -ENOMEM;
diff --git a/fs/reiserfs/xattr_acl.c b/fs/reiserfs/xattr_acl.c
index 3d2256a425ee..54415f0e3d18 100644
--- a/fs/reiserfs/xattr_acl.c
+++ b/fs/reiserfs/xattr_acl.c
@@ -23,7 +23,8 @@ reiserfs_set_acl(struct inode *inode, struct posix_acl *acl, int type)
 	struct reiserfs_transaction_handle th;
 	size_t jcreate_blocks;
 	int size = acl ? posix_acl_xattr_size(acl->a_count) : 0;
-
+	int update_mode = 0;
+	umode_t mode = inode->i_mode;
 
 	/*
 	 * Pessimism: We can't assume that anything from the xattr root up
@@ -37,7 +38,16 @@ reiserfs_set_acl(struct inode *inode, struct posix_acl *acl, int type)
 	error = journal_begin(&th, inode->i_sb, jcreate_blocks);
 	reiserfs_write_unlock(inode->i_sb);
 	if (error == 0) {
+		if (type == ACL_TYPE_ACCESS && acl) {
+			error = posix_acl_update_mode(inode, &mode, &acl);
+			if (error)
+				goto unlock;
+			update_mode = 1;
+		}
 		error = __reiserfs_set_acl(&th, inode, type, acl);
+		if (!error && update_mode)
+			inode->i_mode = mode;
+unlock:
 		reiserfs_write_lock(inode->i_sb);
 		error2 = journal_end(&th);
 		reiserfs_write_unlock(inode->i_sb);
@@ -241,11 +251,6 @@ __reiserfs_set_acl(struct reiserfs_transaction_handle *th, struct inode *inode,
 	switch (type) {
 	case ACL_TYPE_ACCESS:
 		name = XATTR_NAME_POSIX_ACL_ACCESS;
-		if (acl) {
-			error = posix_acl_update_mode(inode, &inode->i_mode, &acl);
-			if (error)
-				return error;
-		}
 		break;
 	case ACL_TYPE_DEFAULT:
 		name = XATTR_NAME_POSIX_ACL_DEFAULT;
diff --git a/fs/super.c b/fs/super.c
index adb0c0de428c..6bc3352adcf3 100644
--- a/fs/super.c
+++ b/fs/super.c
@@ -168,7 +168,6 @@ static void destroy_super(struct super_block *s)
 	WARN_ON(!list_empty(&s->s_mounts));
 	put_user_ns(s->s_user_ns);
 	kfree(s->s_subtype);
-	kfree(s->s_options);
 	call_rcu(&s->rcu, destroy_super_rcu);
 }
 
@@ -508,7 +507,7 @@ retry:
 			return ERR_PTR(-ENOMEM);
 		goto retry;
 	}
-		
+
 	err = set(s, data);
 	if (err) {
 		spin_unlock(&sb_lock);
@@ -771,7 +770,7 @@ restart:
 	spin_unlock(&sb_lock);
 	return NULL;
 }
- 
+
 struct super_block *user_get_super(dev_t dev)
 {
 	struct super_block *sb;
diff --git a/fs/tracefs/inode.c b/fs/tracefs/inode.c
index 328e89c2cf83..bea8ad876bf9 100644
--- a/fs/tracefs/inode.c
+++ b/fs/tracefs/inode.c
@@ -270,8 +270,6 @@ static int trace_fill_super(struct super_block *sb, void *data, int silent)
 	struct tracefs_fs_info *fsi;
 	int err;
 
-	save_mount_options(sb, data);
-
 	fsi = kzalloc(sizeof(struct tracefs_fs_info), GFP_KERNEL);
 	sb->s_fs_info = fsi;
 	if (!fsi) {
diff --git a/fs/ubifs/crypto.c b/fs/ubifs/crypto.c
index 382ed428cfd2..114ba455bac3 100644
--- a/fs/ubifs/crypto.c
+++ b/fs/ubifs/crypto.c
@@ -9,8 +9,13 @@ static int ubifs_crypt_get_context(struct inode *inode, void *ctx, size_t len)
 static int ubifs_crypt_set_context(struct inode *inode, const void *ctx,
 				   size_t len, void *fs_data)
 {
+	/*
+	 * Creating an encryption context is done unlocked since we
+	 * operate on a new inode which is not visible to other users
+	 * at this point. So, no need to check whether inode is locked.
+	 */
 	return ubifs_xattr_set(inode, UBIFS_XATTR_NAME_ENCRYPTION_CONTEXT,
-			       ctx, len, 0);
+			       ctx, len, 0, false);
 }
 
 static bool ubifs_crypt_empty_dir(struct inode *inode)
diff --git a/fs/ubifs/dir.c b/fs/ubifs/dir.c
index 566079d9b402..417fe0b29f23 100644
--- a/fs/ubifs/dir.c
+++ b/fs/ubifs/dir.c
@@ -143,6 +143,7 @@ struct inode *ubifs_new_inode(struct ubifs_info *c, struct inode *dir,
 	case S_IFBLK:
 	case S_IFCHR:
 		inode->i_op  = &ubifs_file_inode_operations;
+		encrypted = false;
 		break;
 	default:
 		BUG();
@@ -1061,7 +1062,6 @@ static int ubifs_mknod(struct inode *dir, struct dentry *dentry,
 	int sz_change;
 	int err, devlen = 0;
 	struct ubifs_budget_req req = { .new_ino = 1, .new_dent = 1,
-					.new_ino_d = ALIGN(devlen, 8),
 					.dirtied_ino = 1 };
 	struct fscrypt_name nm;
 
@@ -1079,6 +1079,7 @@ static int ubifs_mknod(struct inode *dir, struct dentry *dentry,
 		devlen = ubifs_encode_dev(dev, rdev);
 	}
 
+	req.new_ino_d = ALIGN(devlen, 8);
 	err = ubifs_budget_space(c, &req);
 	if (err) {
 		kfree(dev);
@@ -1396,17 +1397,14 @@ static int do_rename(struct inode *old_dir, struct dentry *old_dentry,
 
 		dev = kmalloc(sizeof(union ubifs_dev_desc), GFP_NOFS);
 		if (!dev) {
-			ubifs_release_budget(c, &req);
-			ubifs_release_budget(c, &ino_req);
-			return -ENOMEM;
+			err = -ENOMEM;
+			goto out_release;
 		}
 
 		err = do_tmpfile(old_dir, old_dentry, S_IFCHR | WHITEOUT_MODE, &whiteout);
 		if (err) {
-			ubifs_release_budget(c, &req);
-			ubifs_release_budget(c, &ino_req);
 			kfree(dev);
-			return err;
+			goto out_release;
 		}
 
 		whiteout->i_state |= I_LINKABLE;
@@ -1494,12 +1492,10 @@ static int do_rename(struct inode *old_dir, struct dentry *old_dentry,
 
 		err = ubifs_budget_space(c, &wht_req);
 		if (err) {
-			ubifs_release_budget(c, &req);
-			ubifs_release_budget(c, &ino_req);
 			kfree(whiteout_ui->data);
 			whiteout_ui->data_len = 0;
 			iput(whiteout);
-			return err;
+			goto out_release;
 		}
 
 		inc_nlink(whiteout);
@@ -1554,6 +1550,7 @@ out_cancel:
 		iput(whiteout);
 	}
 	unlock_4_inodes(old_dir, new_dir, new_inode, whiteout);
+out_release:
 	ubifs_release_budget(c, &ino_req);
 	ubifs_release_budget(c, &req);
 	fscrypt_free_filename(&old_nm);
@@ -1647,6 +1644,21 @@ int ubifs_getattr(const struct path *path, struct kstat *stat,
 	struct ubifs_inode *ui = ubifs_inode(inode);
 
 	mutex_lock(&ui->ui_mutex);
+
+	if (ui->flags & UBIFS_APPEND_FL)
+		stat->attributes |= STATX_ATTR_APPEND;
+	if (ui->flags & UBIFS_COMPR_FL)
+		stat->attributes |= STATX_ATTR_COMPRESSED;
+	if (ui->flags & UBIFS_CRYPT_FL)
+		stat->attributes |= STATX_ATTR_ENCRYPTED;
+	if (ui->flags & UBIFS_IMMUTABLE_FL)
+		stat->attributes |= STATX_ATTR_IMMUTABLE;
+
+	stat->attributes_mask |= (STATX_ATTR_APPEND |
+				STATX_ATTR_COMPRESSED |
+				STATX_ATTR_ENCRYPTED |
+				STATX_ATTR_IMMUTABLE);
+
 	generic_fillattr(inode, stat);
 	stat->blksize = UBIFS_BLOCK_SIZE;
 	stat->size = ui->ui_size;
diff --git a/fs/ubifs/file.c b/fs/ubifs/file.c
index 2cda3d67e2d0..8cad0b19b404 100644
--- a/fs/ubifs/file.c
+++ b/fs/ubifs/file.c
@@ -735,6 +735,7 @@ static int ubifs_do_bulk_read(struct ubifs_info *c, struct bu_info *bu,
 	int err, page_idx, page_cnt, ret = 0, n = 0;
 	int allocate = bu->buf ? 0 : 1;
 	loff_t isize;
+	gfp_t ra_gfp_mask = readahead_gfp_mask(mapping) & ~__GFP_FS;
 
 	err = ubifs_tnc_get_bu_keys(c, bu);
 	if (err)
@@ -796,8 +797,7 @@ static int ubifs_do_bulk_read(struct ubifs_info *c, struct bu_info *bu,
 
 		if (page_offset > end_index)
 			break;
-		page = find_or_create_page(mapping, page_offset,
-					   GFP_NOFS | __GFP_COLD);
+		page = find_or_create_page(mapping, page_offset, ra_gfp_mask);
 		if (!page)
 			break;
 		if (!PageUptodate(page))
@@ -1284,6 +1284,14 @@ int ubifs_setattr(struct dentry *dentry, struct iattr *attr)
 	if (err)
 		return err;
 
+	if (ubifs_crypt_is_encrypted(inode) && (attr->ia_valid & ATTR_SIZE)) {
+		err = fscrypt_get_encryption_info(inode);
+		if (err)
+			return err;
+		if (!fscrypt_has_encryption_key(inode))
+			return -ENOKEY;
+	}
+
 	if ((attr->ia_valid & ATTR_SIZE) && attr->ia_size < inode->i_size)
 		/* Truncation to a smaller size */
 		err = do_truncation(c, inode, attr);
@@ -1607,15 +1615,6 @@ static const struct vm_operations_struct ubifs_file_vm_ops = {
 static int ubifs_file_mmap(struct file *file, struct vm_area_struct *vma)
 {
 	int err;
-	struct inode *inode = file->f_mapping->host;
-
-	if (ubifs_crypt_is_encrypted(inode)) {
-		err = fscrypt_get_encryption_info(inode);
-		if (err)
-			return -EACCES;
-		if (!fscrypt_has_encryption_key(inode))
-			return -ENOKEY;
-	}
 
 	err = generic_file_mmap(file, vma);
 	if (err)
@@ -1698,12 +1697,6 @@ static const char *ubifs_get_link(struct dentry *dentry,
 
 	pstr.name[pstr.len] = '\0';
 
-	// XXX this probably won't happen anymore...
-	if (pstr.name[0] == '\0') {
-		fscrypt_fname_free_buffer(&pstr);
-		return ERR_PTR(-ENOENT);
-	}
-
 	set_delayed_call(done, kfree_link, pstr.name);
 	return pstr.name;
 }
diff --git a/fs/ubifs/journal.c b/fs/ubifs/journal.c
index 294519b98874..04c4ec6483e5 100644
--- a/fs/ubifs/journal.c
+++ b/fs/ubifs/journal.c
@@ -549,8 +549,6 @@ int ubifs_jnl_update(struct ubifs_info *c, const struct inode *dir,
 	struct ubifs_ino_node *ino;
 	union ubifs_key dent_key, ino_key;
 
-	//dbg_jnl("ino %lu, dent '%.*s', data len %d in dir ino %lu",
-	//	inode->i_ino, nm->len, nm->name, ui->data_len, dir->i_ino);
 	ubifs_assert(mutex_is_locked(&host_ui->ui_mutex));
 
 	dlen = UBIFS_DENT_NODE_SZ + fname_len(nm) + 1;
@@ -574,7 +572,7 @@ int ubifs_jnl_update(struct ubifs_info *c, const struct inode *dir,
 	/* Make sure to also account for extended attributes */
 	len += host_ui->data_len;
 
-	dent = kmalloc(len, GFP_NOFS);
+	dent = kzalloc(len, GFP_NOFS);
 	if (!dent)
 		return -ENOMEM;
 
@@ -585,7 +583,10 @@ int ubifs_jnl_update(struct ubifs_info *c, const struct inode *dir,
 
 	if (!xent) {
 		dent->ch.node_type = UBIFS_DENT_NODE;
-		dent_key_init(c, &dent_key, dir->i_ino, nm);
+		if (nm->hash)
+			dent_key_init_hash(c, &dent_key, dir->i_ino, nm->hash);
+		else
+			dent_key_init(c, &dent_key, dir->i_ino, nm);
 	} else {
 		dent->ch.node_type = UBIFS_XENT_NODE;
 		xent_key_init(c, &dent_key, dir->i_ino, nm);
@@ -629,7 +630,10 @@ int ubifs_jnl_update(struct ubifs_info *c, const struct inode *dir,
 	kfree(dent);
 
 	if (deletion) {
-		err = ubifs_tnc_remove_nm(c, &dent_key, nm);
+		if (nm->hash)
+			err = ubifs_tnc_remove_dh(c, &dent_key, nm->minor_hash);
+		else
+			err = ubifs_tnc_remove_nm(c, &dent_key, nm);
 		if (err)
 			goto out_ro;
 		err = ubifs_add_dirt(c, lnum, dlen);
@@ -950,9 +954,6 @@ int ubifs_jnl_xrename(struct ubifs_info *c, const struct inode *fst_dir,
 	int twoparents = (fst_dir != snd_dir);
 	void *p;
 
-	//dbg_jnl("dent '%pd' in dir ino %lu between dent '%pd' in dir ino %lu",
-	//	fst_dentry, fst_dir->i_ino, snd_dentry, snd_dir->i_ino);
-
 	ubifs_assert(ubifs_inode(fst_dir)->data_len == 0);
 	ubifs_assert(ubifs_inode(snd_dir)->data_len == 0);
 	ubifs_assert(mutex_is_locked(&ubifs_inode(fst_dir)->ui_mutex));
@@ -967,7 +968,7 @@ int ubifs_jnl_xrename(struct ubifs_info *c, const struct inode *fst_dir,
 	if (twoparents)
 		len += plen;
 
-	dent1 = kmalloc(len, GFP_NOFS);
+	dent1 = kzalloc(len, GFP_NOFS);
 	if (!dent1)
 		return -ENOMEM;
 
@@ -984,6 +985,7 @@ int ubifs_jnl_xrename(struct ubifs_info *c, const struct inode *fst_dir,
 	dent1->nlen = cpu_to_le16(fname_len(snd_nm));
 	memcpy(dent1->name, fname_name(snd_nm), fname_len(snd_nm));
 	dent1->name[fname_len(snd_nm)] = '\0';
+	set_dent_cookie(c, dent1);
 	zero_dent_node_unused(dent1);
 	ubifs_prep_grp_node(c, dent1, dlen1, 0);
 
@@ -996,6 +998,7 @@ int ubifs_jnl_xrename(struct ubifs_info *c, const struct inode *fst_dir,
 	dent2->nlen = cpu_to_le16(fname_len(fst_nm));
 	memcpy(dent2->name, fname_name(fst_nm), fname_len(fst_nm));
 	dent2->name[fname_len(fst_nm)] = '\0';
+	set_dent_cookie(c, dent2);
 	zero_dent_node_unused(dent2);
 	ubifs_prep_grp_node(c, dent2, dlen2, 0);
 
@@ -1094,8 +1097,6 @@ int ubifs_jnl_rename(struct ubifs_info *c, const struct inode *old_dir,
 	int move = (old_dir != new_dir);
 	struct ubifs_inode *uninitialized_var(new_ui);
 
-	//dbg_jnl("dent '%pd' in dir ino %lu to dent '%pd' in dir ino %lu",
-	//	old_dentry, old_dir->i_ino, new_dentry, new_dir->i_ino);
 	ubifs_assert(ubifs_inode(old_dir)->data_len == 0);
 	ubifs_assert(ubifs_inode(new_dir)->data_len == 0);
 	ubifs_assert(mutex_is_locked(&ubifs_inode(old_dir)->ui_mutex));
@@ -1117,7 +1118,7 @@ int ubifs_jnl_rename(struct ubifs_info *c, const struct inode *old_dir,
 	len = aligned_dlen1 + aligned_dlen2 + ALIGN(ilen, 8) + ALIGN(plen, 8);
 	if (move)
 		len += plen;
-	dent = kmalloc(len, GFP_NOFS);
+	dent = kzalloc(len, GFP_NOFS);
 	if (!dent)
 		return -ENOMEM;
 
@@ -1298,7 +1299,9 @@ static int truncate_data_node(const struct ubifs_info *c, const struct inode *in
 			goto out;
 	}
 
-	if (compr_type != UBIFS_COMPR_NONE) {
+	if (compr_type == UBIFS_COMPR_NONE) {
+		out_len = *new_len;
+	} else {
 		err = ubifs_decompress(c, &dn->data, dlen, buf, &out_len, compr_type);
 		if (err)
 			goto out;
@@ -1485,9 +1488,6 @@ int ubifs_jnl_delete_xattr(struct ubifs_info *c, const struct inode *host,
 	int sync = IS_DIRSYNC(host);
 	struct ubifs_inode *host_ui = ubifs_inode(host);
 
-	//dbg_jnl("host %lu, xattr ino %lu, name '%s', data len %d",
-	//	host->i_ino, inode->i_ino, nm->name,
-	//	ubifs_inode(inode)->data_len);
 	ubifs_assert(inode->i_nlink == 0);
 	ubifs_assert(mutex_is_locked(&host_ui->ui_mutex));
 
@@ -1500,7 +1500,7 @@ int ubifs_jnl_delete_xattr(struct ubifs_info *c, const struct inode *host,
 	hlen = host_ui->data_len + UBIFS_INO_NODE_SZ;
 	len = aligned_xlen + UBIFS_INO_NODE_SZ + ALIGN(hlen, 8);
 
-	xent = kmalloc(len, GFP_NOFS);
+	xent = kzalloc(len, GFP_NOFS);
 	if (!xent)
 		return -ENOMEM;
 
@@ -1607,7 +1607,7 @@ int ubifs_jnl_change_xattr(struct ubifs_info *c, const struct inode *inode,
 	aligned_len1 = ALIGN(len1, 8);
 	aligned_len = aligned_len1 + ALIGN(len2, 8);
 
-	ino = kmalloc(aligned_len, GFP_NOFS);
+	ino = kzalloc(aligned_len, GFP_NOFS);
 	if (!ino)
 		return -ENOMEM;
 
diff --git a/fs/ubifs/key.h b/fs/ubifs/key.h
index 7547be512db2..b1f7c0caa3ac 100644
--- a/fs/ubifs/key.h
+++ b/fs/ubifs/key.h
@@ -162,6 +162,7 @@ static inline void dent_key_init(const struct ubifs_info *c,
 	uint32_t hash = c->key_hash(fname_name(nm), fname_len(nm));
 
 	ubifs_assert(!(hash & ~UBIFS_S_KEY_HASH_MASK));
+	ubifs_assert(!nm->hash && !nm->minor_hash);
 	key->u32[0] = inum;
 	key->u32[1] = hash | (UBIFS_DENT_KEY << UBIFS_S_KEY_HASH_BITS);
 }
diff --git a/fs/ubifs/super.c b/fs/ubifs/super.c
index cf4cc99b75b5..bffadbb67e47 100644
--- a/fs/ubifs/super.c
+++ b/fs/ubifs/super.c
@@ -45,7 +45,7 @@
 #define UBIFS_KMALLOC_OK (128*1024)
 
 /* Slab cache for UBIFS inodes */
-struct kmem_cache *ubifs_inode_slab;
+static struct kmem_cache *ubifs_inode_slab;
 
 /* UBIFS TNC shrinker description */
 static struct shrinker ubifs_shrinker_info = {
@@ -446,6 +446,8 @@ static int ubifs_show_options(struct seq_file *s, struct dentry *root)
 			   ubifs_compr_name(c->mount_opts.compr_type));
 	}
 
+	seq_printf(s, ",ubi=%d,vol=%d", c->vi.ubi_num, c->vi.vol_id);
+
 	return 0;
 }
 
@@ -931,6 +933,7 @@ enum {
 	Opt_chk_data_crc,
 	Opt_no_chk_data_crc,
 	Opt_override_compr,
+	Opt_ignore,
 	Opt_err,
 };
 
@@ -942,6 +945,8 @@ static const match_table_t tokens = {
 	{Opt_chk_data_crc, "chk_data_crc"},
 	{Opt_no_chk_data_crc, "no_chk_data_crc"},
 	{Opt_override_compr, "compr=%s"},
+	{Opt_ignore, "ubi=%s"},
+	{Opt_ignore, "vol=%s"},
 	{Opt_err, NULL},
 };
 
@@ -1042,6 +1047,8 @@ static int ubifs_parse_options(struct ubifs_info *c, char *options,
 			c->default_compr = c->mount_opts.compr_type;
 			break;
 		}
+		case Opt_ignore:
+			break;
 		default:
 		{
 			unsigned long flag;
@@ -1869,8 +1876,10 @@ static int ubifs_remount_fs(struct super_block *sb, int *flags, char *data)
 		bu_init(c);
 	else {
 		dbg_gen("disable bulk-read");
+		mutex_lock(&c->bu_mutex);
 		kfree(c->bu.buf);
 		c->bu.buf = NULL;
+		mutex_unlock(&c->bu_mutex);
 	}
 
 	ubifs_assert(c->lst.taken_empty_lebs > 0);
diff --git a/fs/ubifs/tnc.c b/fs/ubifs/tnc.c
index 709aa098dd46..0a213dcba2a1 100644
--- a/fs/ubifs/tnc.c
+++ b/fs/ubifs/tnc.c
@@ -1812,7 +1812,7 @@ static int do_lookup_nm(struct ubifs_info *c, const union ubifs_key *key,
 	int found, n, err;
 	struct ubifs_znode *znode;
 
-	//dbg_tnck(key, "name '%.*s' key ", nm->len, nm->name);
+	dbg_tnck(key, "key ");
 	mutex_lock(&c->tnc_mutex);
 	found = ubifs_lookup_level0(c, key, &znode, &n);
 	if (!found) {
@@ -1880,48 +1880,65 @@ int ubifs_tnc_lookup_nm(struct ubifs_info *c, const union ubifs_key *key,
 	return do_lookup_nm(c, key, node, nm);
 }
 
-static int do_lookup_dh(struct ubifs_info *c, const union ubifs_key *key,
-			struct ubifs_dent_node *dent, uint32_t cookie)
+static int search_dh_cookie(struct ubifs_info *c, const union ubifs_key *key,
+			    struct ubifs_dent_node *dent, uint32_t cookie,
+			    struct ubifs_znode **zn, int *n)
 {
-	int n, err, type = key_type(c, key);
-	struct ubifs_znode *znode;
+	int err;
+	struct ubifs_znode *znode = *zn;
 	struct ubifs_zbranch *zbr;
-	union ubifs_key *dkey, start_key;
-
-	ubifs_assert(is_hash_key(c, key));
-
-	lowest_dent_key(c, &start_key, key_inum(c, key));
-
-	mutex_lock(&c->tnc_mutex);
-	err = ubifs_lookup_level0(c, &start_key, &znode, &n);
-	if (unlikely(err < 0))
-		goto out_unlock;
+	union ubifs_key *dkey;
 
 	for (;;) {
 		if (!err) {
-			err = tnc_next(c, &znode, &n);
+			err = tnc_next(c, &znode, n);
 			if (err)
-				goto out_unlock;
+				goto out;
 		}
 
-		zbr = &znode->zbranch[n];
+		zbr = &znode->zbranch[*n];
 		dkey = &zbr->key;
 
 		if (key_inum(c, dkey) != key_inum(c, key) ||
-		    key_type(c, dkey) != type) {
+		    key_type(c, dkey) != key_type(c, key)) {
 			err = -ENOENT;
-			goto out_unlock;
+			goto out;
 		}
 
 		err = tnc_read_hashed_node(c, zbr, dent);
 		if (err)
-			goto out_unlock;
+			goto out;
 
 		if (key_hash(c, key) == key_hash(c, dkey) &&
-		    le32_to_cpu(dent->cookie) == cookie)
-			goto out_unlock;
+		    le32_to_cpu(dent->cookie) == cookie) {
+			*zn = znode;
+			goto out;
+		}
 	}
 
+out:
+
+	return err;
+}
+
+static int do_lookup_dh(struct ubifs_info *c, const union ubifs_key *key,
+			struct ubifs_dent_node *dent, uint32_t cookie)
+{
+	int n, err;
+	struct ubifs_znode *znode;
+	union ubifs_key start_key;
+
+	ubifs_assert(is_hash_key(c, key));
+
+	lowest_dent_key(c, &start_key, key_inum(c, key));
+
+	mutex_lock(&c->tnc_mutex);
+	err = ubifs_lookup_level0(c, &start_key, &znode, &n);
+	if (unlikely(err < 0))
+		goto out_unlock;
+
+	err = search_dh_cookie(c, key, dent, cookie, &znode, &n);
+
 out_unlock:
 	mutex_unlock(&c->tnc_mutex);
 	return err;
@@ -2393,8 +2410,7 @@ int ubifs_tnc_add_nm(struct ubifs_info *c, const union ubifs_key *key,
 	struct ubifs_znode *znode;
 
 	mutex_lock(&c->tnc_mutex);
-	//dbg_tnck(key, "LEB %d:%d, name '%.*s', key ",
-	//	 lnum, offs, nm->len, nm->name);
+	dbg_tnck(key, "LEB %d:%d, key ", lnum, offs);
 	found = lookup_level0_dirty(c, key, &znode, &n);
 	if (found < 0) {
 		err = found;
@@ -2628,7 +2644,7 @@ int ubifs_tnc_remove_nm(struct ubifs_info *c, const union ubifs_key *key,
 	struct ubifs_znode *znode;
 
 	mutex_lock(&c->tnc_mutex);
-	//dbg_tnck(key, "%.*s, key ", nm->len, nm->name);
+	dbg_tnck(key, "key ");
 	err = lookup_level0_dirty(c, key, &znode, &n);
 	if (err < 0)
 		goto out_unlock;
@@ -2663,6 +2679,74 @@ out_unlock:
 }
 
 /**
+ * ubifs_tnc_remove_dh - remove an index entry for a "double hashed" node.
+ * @c: UBIFS file-system description object
+ * @key: key of node
+ * @cookie: node cookie for collision resolution
+ *
+ * Returns %0 on success or negative error code on failure.
+ */
+int ubifs_tnc_remove_dh(struct ubifs_info *c, const union ubifs_key *key,
+			uint32_t cookie)
+{
+	int n, err;
+	struct ubifs_znode *znode;
+	struct ubifs_dent_node *dent;
+	struct ubifs_zbranch *zbr;
+
+	if (!c->double_hash)
+		return -EOPNOTSUPP;
+
+	mutex_lock(&c->tnc_mutex);
+	err = lookup_level0_dirty(c, key, &znode, &n);
+	if (err <= 0)
+		goto out_unlock;
+
+	zbr = &znode->zbranch[n];
+	dent = kmalloc(UBIFS_MAX_DENT_NODE_SZ, GFP_NOFS);
+	if (!dent) {
+		err = -ENOMEM;
+		goto out_unlock;
+	}
+
+	err = tnc_read_hashed_node(c, zbr, dent);
+	if (err)
+		goto out_free;
+
+	/* If the cookie does not match, we're facing a hash collision. */
+	if (le32_to_cpu(dent->cookie) != cookie) {
+		union ubifs_key start_key;
+
+		lowest_dent_key(c, &start_key, key_inum(c, key));
+
+		err = ubifs_lookup_level0(c, &start_key, &znode, &n);
+		if (unlikely(err < 0))
+			goto out_free;
+
+		err = search_dh_cookie(c, key, dent, cookie, &znode, &n);
+		if (err)
+			goto out_free;
+	}
+
+	if (znode->cnext || !ubifs_zn_dirty(znode)) {
+		znode = dirty_cow_bottom_up(c, znode);
+		if (IS_ERR(znode)) {
+			err = PTR_ERR(znode);
+			goto out_free;
+		}
+	}
+	err = tnc_delete(c, znode, n);
+
+out_free:
+	kfree(dent);
+out_unlock:
+	if (!err)
+		err = dbg_check_tnc(c, 0);
+	mutex_unlock(&c->tnc_mutex);
+	return err;
+}
+
+/**
  * key_in_range - determine if a key falls within a range of keys.
  * @c: UBIFS file-system description object
  * @key: key to check
@@ -2802,6 +2886,8 @@ int ubifs_tnc_remove_ino(struct ubifs_info *c, ino_t inum)
 		dbg_tnc("xent '%s', ino %lu", xent->name,
 			(unsigned long)xattr_inum);
 
+		ubifs_evict_xattr_inode(c, xattr_inum);
+
 		fname_name(&nm) = xent->name;
 		fname_len(&nm) = le16_to_cpu(xent->nlen);
 		err = ubifs_tnc_remove_nm(c, &key1, &nm);
@@ -2863,7 +2949,7 @@ struct ubifs_dent_node *ubifs_tnc_next_ent(struct ubifs_info *c,
 	struct ubifs_zbranch *zbr;
 	union ubifs_key *dkey;
 
-	//dbg_tnck(key, "%s ", nm->name ? (char *)nm->name : "(lowest)");
+	dbg_tnck(key, "key ");
 	ubifs_assert(is_hash_key(c, key));
 
 	mutex_lock(&c->tnc_mutex);
diff --git a/fs/ubifs/tnc_commit.c b/fs/ubifs/tnc_commit.c
index 51157da3f76e..aa31f60220ef 100644
--- a/fs/ubifs/tnc_commit.c
+++ b/fs/ubifs/tnc_commit.c
@@ -57,6 +57,8 @@ static int make_idx_node(struct ubifs_info *c, struct ubifs_idx_node *idx,
 			ubifs_dump_znode(c, znode);
 			if (zbr->znode)
 				ubifs_dump_znode(c, zbr->znode);
+
+			return -EINVAL;
 		}
 	}
 	ubifs_prepare_node(c, idx, len, 0);
@@ -859,6 +861,8 @@ static int write_index(struct ubifs_info *c)
 				ubifs_dump_znode(c, znode);
 				if (zbr->znode)
 					ubifs_dump_znode(c, zbr->znode);
+
+				return -EINVAL;
 			}
 		}
 		len = ubifs_idx_node_sz(c, znode->child_cnt);
diff --git a/fs/ubifs/ubifs.h b/fs/ubifs/ubifs.h
index 298b4d89eee9..cd43651f1731 100644
--- a/fs/ubifs/ubifs.h
+++ b/fs/ubifs/ubifs.h
@@ -1451,7 +1451,6 @@ struct ubifs_info {
 extern struct list_head ubifs_infos;
 extern spinlock_t ubifs_infos_lock;
 extern atomic_long_t ubifs_clean_zn_cnt;
-extern struct kmem_cache *ubifs_inode_slab;
 extern const struct super_operations ubifs_super_operations;
 extern const struct address_space_operations ubifs_file_address_operations;
 extern const struct file_operations ubifs_file_operations;
@@ -1590,6 +1589,8 @@ int ubifs_tnc_add_nm(struct ubifs_info *c, const union ubifs_key *key,
 int ubifs_tnc_remove(struct ubifs_info *c, const union ubifs_key *key);
 int ubifs_tnc_remove_nm(struct ubifs_info *c, const union ubifs_key *key,
 			const struct fscrypt_name *nm);
+int ubifs_tnc_remove_dh(struct ubifs_info *c, const union ubifs_key *key,
+			uint32_t cookie);
 int ubifs_tnc_remove_range(struct ubifs_info *c, union ubifs_key *from_key,
 			   union ubifs_key *to_key);
 int ubifs_tnc_remove_ino(struct ubifs_info *c, ino_t inum);
@@ -1754,9 +1755,10 @@ int ubifs_check_dir_empty(struct inode *dir);
 extern const struct xattr_handler *ubifs_xattr_handlers[];
 ssize_t ubifs_listxattr(struct dentry *dentry, char *buffer, size_t size);
 int ubifs_xattr_set(struct inode *host, const char *name, const void *value,
-		    size_t size, int flags);
+		    size_t size, int flags, bool check_lock);
 ssize_t ubifs_xattr_get(struct inode *host, const char *name, void *buf,
 			size_t size);
+void ubifs_evict_xattr_inode(struct ubifs_info *c, ino_t xattr_inum);
 
 #ifdef CONFIG_UBIFS_FS_SECURITY
 extern int ubifs_init_security(struct inode *dentry, struct inode *inode,
diff --git a/fs/ubifs/xattr.c b/fs/ubifs/xattr.c
index 6c9e62c2ef55..c13eae819cbc 100644
--- a/fs/ubifs/xattr.c
+++ b/fs/ubifs/xattr.c
@@ -280,7 +280,7 @@ static struct inode *iget_xattr(struct ubifs_info *c, ino_t inum)
 }
 
 int ubifs_xattr_set(struct inode *host, const char *name, const void *value,
-		    size_t size, int flags)
+		    size_t size, int flags, bool check_lock)
 {
 	struct inode *inode;
 	struct ubifs_info *c = host->i_sb->s_fs_info;
@@ -289,12 +289,7 @@ int ubifs_xattr_set(struct inode *host, const char *name, const void *value,
 	union ubifs_key key;
 	int err;
 
-	/*
-	 * Creating an encryption context is done unlocked since we
-	 * operate on a new inode which is not visible to other users
-	 * at this point.
-	 */
-	if (strcmp(name, UBIFS_XATTR_NAME_ENCRYPTION_CONTEXT) != 0)
+	if (check_lock)
 		ubifs_assert(inode_is_locked(host));
 
 	if (size > UBIFS_MAX_INO_DATA)
@@ -513,6 +508,28 @@ out_cancel:
 	return err;
 }
 
+/**
+ * ubifs_evict_xattr_inode - Evict an xattr inode.
+ * @c: UBIFS file-system description object
+ * @xattr_inum: xattr inode number
+ *
+ * When an inode that hosts xattrs is being removed we have to make sure
+ * that cached inodes of the xattrs also get removed from the inode cache
+ * otherwise we'd waste memory. This function looks up an inode from the
+ * inode cache and clears the link counter such that iput() will evict
+ * the inode.
+ */
+void ubifs_evict_xattr_inode(struct ubifs_info *c, ino_t xattr_inum)
+{
+	struct inode *inode;
+
+	inode = ilookup(c->vfs_sb, xattr_inum);
+	if (inode) {
+		clear_nlink(inode);
+		iput(inode);
+	}
+}
+
 static int ubifs_xattr_remove(struct inode *host, const char *name)
 {
 	struct inode *inode;
@@ -576,8 +593,12 @@ static int init_xattrs(struct inode *inode, const struct xattr *xattr_array,
 		}
 		strcpy(name, XATTR_SECURITY_PREFIX);
 		strcpy(name + XATTR_SECURITY_PREFIX_LEN, xattr->name);
+		/*
+		 * creating a new inode without holding the inode rwsem,
+		 * no need to check whether inode is locked.
+		 */
 		err = ubifs_xattr_set(inode, name, xattr->value,
-				      xattr->value_len, 0);
+				      xattr->value_len, 0, false);
 		kfree(name);
 		if (err < 0)
 			break;
@@ -624,7 +645,7 @@ static int xattr_set(const struct xattr_handler *handler,
 	name = xattr_full_name(handler, name);
 
 	if (value)
-		return ubifs_xattr_set(inode, name, value, size, flags);
+		return ubifs_xattr_set(inode, name, value, size, flags, true);
 	else
 		return ubifs_xattr_remove(inode, name);
 }
diff --git a/fs/udf/file.c b/fs/udf/file.c
index f5eb2d5b3bac..356c2bf148a5 100644
--- a/fs/udf/file.c
+++ b/fs/udf/file.c
@@ -43,10 +43,15 @@ static void __udf_adinicb_readpage(struct page *page)
 	struct inode *inode = page->mapping->host;
 	char *kaddr;
 	struct udf_inode_info *iinfo = UDF_I(inode);
+	loff_t isize = i_size_read(inode);
 
+	/*
+	 * We have to be careful here as truncate can change i_size under us.
+	 * So just sample it once and use the same value everywhere.
+	 */
 	kaddr = kmap_atomic(page);
-	memcpy(kaddr, iinfo->i_ext.i_data + iinfo->i_lenEAttr, inode->i_size);
-	memset(kaddr + inode->i_size, 0, PAGE_SIZE - inode->i_size);
+	memcpy(kaddr, iinfo->i_ext.i_data + iinfo->i_lenEAttr, isize);
+	memset(kaddr + isize, 0, PAGE_SIZE - isize);
 	flush_dcache_page(page);
 	SetPageUptodate(page);
 	kunmap_atomic(kaddr);
@@ -71,7 +76,8 @@ static int udf_adinicb_writepage(struct page *page,
 	BUG_ON(!PageLocked(page));
 
 	kaddr = kmap_atomic(page);
-	memcpy(iinfo->i_ext.i_data + iinfo->i_lenEAttr, kaddr, inode->i_size);
+	memcpy(iinfo->i_ext.i_data + iinfo->i_lenEAttr, kaddr,
+		i_size_read(inode));
 	SetPageUptodate(page);
 	kunmap_atomic(kaddr);
 	mark_inode_dirty(inode);
diff --git a/fs/udf/inode.c b/fs/udf/inode.c
index 98c510e17203..18fdb9d90812 100644
--- a/fs/udf/inode.c
+++ b/fs/udf/inode.c
@@ -1222,8 +1222,8 @@ int udf_setsize(struct inode *inode, loff_t newsize)
 			return err;
 		}
 set_size:
-		truncate_setsize(inode, newsize);
 		up_write(&iinfo->i_data_sem);
+		truncate_setsize(inode, newsize);
 	} else {
 		if (iinfo->i_alloc_type == ICBTAG_FLAG_AD_IN_ICB) {
 			down_write(&iinfo->i_data_sem);
@@ -1240,9 +1240,9 @@ set_size:
 					  udf_get_block);
 		if (err)
 			return err;
+		truncate_setsize(inode, newsize);
 		down_write(&iinfo->i_data_sem);
 		udf_clear_extent_cache(inode);
-		truncate_setsize(inode, newsize);
 		udf_truncate_extents(inode);
 		up_write(&iinfo->i_data_sem);
 	}
diff --git a/fs/udf/super.c b/fs/udf/super.c
index 14b4bc1f6801..462ac2e9258c 100644
--- a/fs/udf/super.c
+++ b/fs/udf/super.c
@@ -73,8 +73,6 @@
 #define VDS_POS_TERMINATING_DESC	6
 #define VDS_POS_LENGTH			7
 
-#define UDF_DEFAULT_BLOCKSIZE 2048
-
 #define VSD_FIRST_SECTOR_OFFSET		32768
 #define VSD_MAX_SECTOR_OFFSET		0x800000
 
diff --git a/fs/udf/udftime.c b/fs/udf/udftime.c
index 77c331f1a770..14626b34d13e 100644
--- a/fs/udf/udftime.c
+++ b/fs/udf/udftime.c
@@ -38,56 +38,11 @@
 
 #include <linux/types.h>
 #include <linux/kernel.h>
-
-#define EPOCH_YEAR 1970
-
-#ifndef __isleap
-/* Nonzero if YEAR is a leap year (every 4 years,
-   except every 100th isn't, and every 400th is).  */
-#define	__isleap(year)	\
-  ((year) % 4 == 0 && ((year) % 100 != 0 || (year) % 400 == 0))
-#endif
-
-/* How many days come before each month (0-12).  */
-static const unsigned short int __mon_yday[2][13] = {
-	/* Normal years.  */
-	{0, 31, 59, 90, 120, 151, 181, 212, 243, 273, 304, 334, 365},
-	/* Leap years.  */
-	{0, 31, 60, 91, 121, 152, 182, 213, 244, 274, 305, 335, 366}
-};
-
-#define MAX_YEAR_SECONDS	69
-#define SPD			0x15180	/*3600*24 */
-#define SPY(y, l, s)		(SPD * (365 * y + l) + s)
-
-static time_t year_seconds[MAX_YEAR_SECONDS] = {
-/*1970*/ SPY(0,   0, 0), SPY(1,   0, 0), SPY(2,   0, 0), SPY(3,   1, 0),
-/*1974*/ SPY(4,   1, 0), SPY(5,   1, 0), SPY(6,   1, 0), SPY(7,   2, 0),
-/*1978*/ SPY(8,   2, 0), SPY(9,   2, 0), SPY(10,  2, 0), SPY(11,  3, 0),
-/*1982*/ SPY(12,  3, 0), SPY(13,  3, 0), SPY(14,  3, 0), SPY(15,  4, 0),
-/*1986*/ SPY(16,  4, 0), SPY(17,  4, 0), SPY(18,  4, 0), SPY(19,  5, 0),
-/*1990*/ SPY(20,  5, 0), SPY(21,  5, 0), SPY(22,  5, 0), SPY(23,  6, 0),
-/*1994*/ SPY(24,  6, 0), SPY(25,  6, 0), SPY(26,  6, 0), SPY(27,  7, 0),
-/*1998*/ SPY(28,  7, 0), SPY(29,  7, 0), SPY(30,  7, 0), SPY(31,  8, 0),
-/*2002*/ SPY(32,  8, 0), SPY(33,  8, 0), SPY(34,  8, 0), SPY(35,  9, 0),
-/*2006*/ SPY(36,  9, 0), SPY(37,  9, 0), SPY(38,  9, 0), SPY(39, 10, 0),
-/*2010*/ SPY(40, 10, 0), SPY(41, 10, 0), SPY(42, 10, 0), SPY(43, 11, 0),
-/*2014*/ SPY(44, 11, 0), SPY(45, 11, 0), SPY(46, 11, 0), SPY(47, 12, 0),
-/*2018*/ SPY(48, 12, 0), SPY(49, 12, 0), SPY(50, 12, 0), SPY(51, 13, 0),
-/*2022*/ SPY(52, 13, 0), SPY(53, 13, 0), SPY(54, 13, 0), SPY(55, 14, 0),
-/*2026*/ SPY(56, 14, 0), SPY(57, 14, 0), SPY(58, 14, 0), SPY(59, 15, 0),
-/*2030*/ SPY(60, 15, 0), SPY(61, 15, 0), SPY(62, 15, 0), SPY(63, 16, 0),
-/*2034*/ SPY(64, 16, 0), SPY(65, 16, 0), SPY(66, 16, 0), SPY(67, 17, 0),
-/*2038*/ SPY(68, 17, 0)
-};
-
-#define SECS_PER_HOUR	(60 * 60)
-#define SECS_PER_DAY	(SECS_PER_HOUR * 24)
+#include <linux/time.h>
 
 struct timespec *
 udf_disk_stamp_to_time(struct timespec *dest, struct timestamp src)
 {
-	int yday;
 	u16 typeAndTimezone = le16_to_cpu(src.typeAndTimezone);
 	u16 year = le16_to_cpu(src.year);
 	uint8_t type = typeAndTimezone >> 12;
@@ -102,15 +57,9 @@ udf_disk_stamp_to_time(struct timespec *dest, struct timestamp src)
 	} else
 		offset = 0;
 
-	if ((year < EPOCH_YEAR) ||
-	    (year >= EPOCH_YEAR + MAX_YEAR_SECONDS)) {
-		return NULL;
-	}
-	dest->tv_sec = year_seconds[year - EPOCH_YEAR];
+	dest->tv_sec = mktime64(year, src.month, src.day, src.hour, src.minute,
+			src.second);
 	dest->tv_sec -= offset * 60;
-
-	yday = ((__mon_yday[__isleap(year)][src.month - 1]) + src.day - 1);
-	dest->tv_sec += (((yday * 24) + src.hour) * 60 + src.minute) * 60 + src.second;
 	dest->tv_nsec = 1000 * (src.centiseconds * 10000 +
 			src.hundredsOfMicroseconds * 100 + src.microseconds);
 	return dest;
@@ -119,9 +68,9 @@ udf_disk_stamp_to_time(struct timespec *dest, struct timestamp src)
 struct timestamp *
 udf_time_to_disk_stamp(struct timestamp *dest, struct timespec ts)
 {
-	long int days, rem, y;
-	const unsigned short int *ip;
+	long seconds;
 	int16_t offset;
+	struct tm tm;
 
 	offset = -sys_tz.tz_minuteswest;
 
@@ -130,35 +79,14 @@ udf_time_to_disk_stamp(struct timestamp *dest, struct timespec ts)
 
 	dest->typeAndTimezone = cpu_to_le16(0x1000 | (offset & 0x0FFF));
 
-	ts.tv_sec += offset * 60;
-	days = ts.tv_sec / SECS_PER_DAY;
-	rem = ts.tv_sec % SECS_PER_DAY;
-	dest->hour = rem / SECS_PER_HOUR;
-	rem %= SECS_PER_HOUR;
-	dest->minute = rem / 60;
-	dest->second = rem % 60;
-	y = 1970;
-
-#define DIV(a, b) ((a) / (b) - ((a) % (b) < 0))
-#define LEAPS_THRU_END_OF(y) (DIV (y, 4) - DIV (y, 100) + DIV (y, 400))
-
-	while (days < 0 || days >= (__isleap(y) ? 366 : 365)) {
-		long int yg = y + days / 365 - (days % 365 < 0);
-
-		/* Adjust DAYS and Y to match the guessed year.  */
-		days -= ((yg - y) * 365
-			 + LEAPS_THRU_END_OF(yg - 1)
-			 - LEAPS_THRU_END_OF(y - 1));
-		y = yg;
-	}
-	dest->year = cpu_to_le16(y);
-	ip = __mon_yday[__isleap(y)];
-	for (y = 11; days < (long int)ip[y]; --y)
-		continue;
-	days -= ip[y];
-	dest->month = y + 1;
-	dest->day = days + 1;
-
+	seconds = ts.tv_sec + offset * 60;
+	time64_to_tm(seconds, 0, &tm);
+	dest->year = cpu_to_le16(tm.tm_year + 1900);
+	dest->month = tm.tm_mon + 1;
+	dest->day = tm.tm_mday;
+	dest->hour = tm.tm_hour;
+	dest->minute = tm.tm_min;
+	dest->second = tm.tm_sec;
 	dest->centiseconds = ts.tv_nsec / 10000000;
 	dest->hundredsOfMicroseconds = (ts.tv_nsec / 1000 -
 					dest->centiseconds * 10000) / 100;
diff --git a/fs/userfaultfd.c b/fs/userfaultfd.c
index cadcd12a3d35..b0d5897bc4e6 100644
--- a/fs/userfaultfd.c
+++ b/fs/userfaultfd.c
@@ -854,6 +854,9 @@ wakeup:
 	__wake_up_locked_key(&ctx->fault_wqh, TASK_NORMAL, &range);
 	spin_unlock(&ctx->fault_pending_wqh.lock);
 
+	/* Flush pending events that may still wait on event_wqh */
+	wake_up_all(&ctx->event_wqh);
+
 	wake_up_poll(&ctx->fd_wqh, POLLHUP);
 	userfaultfd_ctx_put(ctx);
 	return 0;
@@ -1597,7 +1600,7 @@ static int userfaultfd_copy(struct userfaultfd_ctx *ctx,
 				   uffdio_copy.len);
 		mmput(ctx->mm);
 	} else {
-		return -ENOSPC;
+		return -ESRCH;
 	}
 	if (unlikely(put_user(ret, &user_uffdio_copy->copy)))
 		return -EFAULT;
@@ -1643,6 +1646,8 @@ static int userfaultfd_zeropage(struct userfaultfd_ctx *ctx,
 		ret = mfill_zeropage(ctx->mm, uffdio_zeropage.range.start,
 				     uffdio_zeropage.range.len);
 		mmput(ctx->mm);
+	} else {
+		return -ESRCH;
 	}
 	if (unlikely(put_user(ret, &user_uffdio_zeropage->zeropage)))
 		return -EFAULT;
diff --git a/fs/xfs/kmem.h b/fs/xfs/kmem.h
index d6ea520162b2..4d85992d75b2 100644
--- a/fs/xfs/kmem.h
+++ b/fs/xfs/kmem.h
@@ -54,6 +54,16 @@ kmem_flags_convert(xfs_km_flags_t flags)
 			lflags &= ~__GFP_FS;
 	}
 
+	/*
+	 * Default page/slab allocator behavior is to retry for ever
+	 * for small allocations. We can override this behavior by using
+	 * __GFP_RETRY_MAYFAIL which will tell the allocator to retry as long
+	 * as it is feasible but rather fail than retry forever for all
+	 * request sizes.
+	 */
+	if (flags & KM_MAYFAIL)
+		lflags |= __GFP_RETRY_MAYFAIL;
+
 	if (flags & KM_ZERO)
 		lflags |= __GFP_ZERO;
 
diff --git a/fs/xfs/libxfs/xfs_attr.c b/fs/xfs/libxfs/xfs_attr.c
index ef8a1c75a467..de7b9bd30bec 100644
--- a/fs/xfs/libxfs/xfs_attr.c
+++ b/fs/xfs/libxfs/xfs_attr.c
@@ -114,12 +114,14 @@ xfs_inode_hasattr(
  * Overall external interface routines.
  *========================================================================*/
 
-/* Retrieve an extended attribute and its value.  Must have iolock. */
+/* Retrieve an extended attribute and its value.  Must have ilock. */
 int
 xfs_attr_get_ilocked(
 	struct xfs_inode	*ip,
 	struct xfs_da_args	*args)
 {
+	ASSERT(xfs_isilocked(ip, XFS_ILOCK_SHARED | XFS_ILOCK_EXCL));
+
 	if (!xfs_inode_hasattr(ip))
 		return -ENOATTR;
 	else if (ip->i_d.di_aformat == XFS_DINODE_FMT_LOCAL)
diff --git a/fs/xfs/libxfs/xfs_bmap.c b/fs/xfs/libxfs/xfs_bmap.c
index 0a9880777c9c..c09c16b1ad3b 100644
--- a/fs/xfs/libxfs/xfs_bmap.c
+++ b/fs/xfs/libxfs/xfs_bmap.c
@@ -5435,6 +5435,7 @@ __xfs_bunmapi(
 	xfs_fsblock_t		sum;
 	xfs_filblks_t		len = *rlen;	/* length to unmap in file */
 	xfs_fileoff_t		max_len;
+	xfs_agnumber_t		prev_agno = NULLAGNUMBER, agno;
 
 	trace_xfs_bunmap(ip, bno, len, flags, _RET_IP_);
 
@@ -5534,6 +5535,17 @@ __xfs_bunmapi(
 		 */
 		del = got;
 		wasdel = isnullstartblock(del.br_startblock);
+
+		/*
+		 * Make sure we don't touch multiple AGF headers out of order
+		 * in a single transaction, as that could cause AB-BA deadlocks.
+		 */
+		if (!wasdel) {
+			agno = XFS_FSB_TO_AGNO(mp, del.br_startblock);
+			if (prev_agno != NULLAGNUMBER && prev_agno > agno)
+				break;
+			prev_agno = agno;
+		}
 		if (got.br_startoff < start) {
 			del.br_startoff = start;
 			del.br_blockcount -= start - got.br_startoff;
@@ -6499,6 +6511,15 @@ xfs_bmap_finish_one(
 	xfs_fsblock_t			firstfsb;
 	int				error = 0;
 
+	/*
+	 * firstfsb is tied to the transaction lifetime and is used to
+	 * ensure correct AG locking order and schedule work item
+	 * continuations.  XFS_BUI_MAX_FAST_EXTENTS (== 1) restricts us
+	 * to only making one bmap call per transaction, so it should
+	 * be safe to have it as a local variable here.
+	 */
+	firstfsb = NULLFSBLOCK;
+
 	trace_xfs_bmap_deferred(tp->t_mountp,
 			XFS_FSB_TO_AGNO(tp->t_mountp, startblock), type,
 			XFS_FSB_TO_AGBNO(tp->t_mountp, startblock),
diff --git a/fs/xfs/libxfs/xfs_btree.c b/fs/xfs/libxfs/xfs_btree.c
index 4da85fff69ad..e0bcc4a59efd 100644
--- a/fs/xfs/libxfs/xfs_btree.c
+++ b/fs/xfs/libxfs/xfs_btree.c
@@ -728,7 +728,8 @@ xfs_btree_firstrec(
 	 * Get the block pointer for this level.
 	 */
 	block = xfs_btree_get_block(cur, level, &bp);
-	xfs_btree_check_block(cur, block, level, bp);
+	if (xfs_btree_check_block(cur, block, level, bp))
+		return 0;
 	/*
 	 * It's empty, there is no such record.
 	 */
@@ -757,7 +758,8 @@ xfs_btree_lastrec(
 	 * Get the block pointer for this level.
 	 */
 	block = xfs_btree_get_block(cur, level, &bp);
-	xfs_btree_check_block(cur, block, level, bp);
+	if (xfs_btree_check_block(cur, block, level, bp))
+		return 0;
 	/*
 	 * It's empty, there is no such record.
 	 */
diff --git a/fs/xfs/libxfs/xfs_dir2_data.c b/fs/xfs/libxfs/xfs_dir2_data.c
index d478065b9544..8727a43115ef 100644
--- a/fs/xfs/libxfs/xfs_dir2_data.c
+++ b/fs/xfs/libxfs/xfs_dir2_data.c
@@ -136,6 +136,8 @@ __xfs_dir3_data_check(
 		 */
 		if (be16_to_cpu(dup->freetag) == XFS_DIR2_DATA_FREE_TAG) {
 			XFS_WANT_CORRUPTED_RETURN(mp, lastfree == 0);
+			XFS_WANT_CORRUPTED_RETURN(mp, endp >=
+					p + be16_to_cpu(dup->length));
 			XFS_WANT_CORRUPTED_RETURN(mp,
 				be16_to_cpu(*xfs_dir2_data_unused_tag_p(dup)) ==
 					       (char *)dup - (char *)hdr);
@@ -164,6 +166,8 @@ __xfs_dir3_data_check(
 		XFS_WANT_CORRUPTED_RETURN(mp, dep->namelen != 0);
 		XFS_WANT_CORRUPTED_RETURN(mp,
 			!xfs_dir_ino_validate(mp, be64_to_cpu(dep->inumber)));
+		XFS_WANT_CORRUPTED_RETURN(mp, endp >=
+				p + ops->data_entsize(dep->namelen));
 		XFS_WANT_CORRUPTED_RETURN(mp,
 			be16_to_cpu(*ops->data_entry_tag_p(dep)) ==
 					       (char *)dep - (char *)hdr);
diff --git a/fs/xfs/libxfs/xfs_ialloc.c b/fs/xfs/libxfs/xfs_ialloc.c
index ffd5a15d1bb6..abf5beaae907 100644
--- a/fs/xfs/libxfs/xfs_ialloc.c
+++ b/fs/xfs/libxfs/xfs_ialloc.c
@@ -1246,13 +1246,13 @@ xfs_dialloc_ag_inobt(
 
 			/* free inodes to the left? */
 			if (useleft && trec.ir_freecount) {
-				rec = trec;
 				xfs_btree_del_cursor(cur, XFS_BTREE_NOERROR);
 				cur = tcur;
 
 				pag->pagl_leftrec = trec.ir_startino;
 				pag->pagl_rightrec = rec.ir_startino;
 				pag->pagl_pagino = pagino;
+				rec = trec;
 				goto alloc_inode;
 			}
 
diff --git a/fs/xfs/libxfs/xfs_quota_defs.h b/fs/xfs/libxfs/xfs_quota_defs.h
index 2834574cb6e7..d69c772271cb 100644
--- a/fs/xfs/libxfs/xfs_quota_defs.h
+++ b/fs/xfs/libxfs/xfs_quota_defs.h
@@ -136,8 +136,6 @@ typedef uint16_t	xfs_qwarncnt_t;
  */
 #define XFS_QMOPT_INHERIT	0x1000000
 
-#define XFS_QMOPT_NOLOCK	0x2000000 /* don't ilock during dqget */
-
 /*
  * flags to xfs_trans_mod_dquot.
  */
diff --git a/fs/xfs/libxfs/xfs_refcount.c b/fs/xfs/libxfs/xfs_refcount.c
index 900ea231f9a3..45b1c3b4e047 100644
--- a/fs/xfs/libxfs/xfs_refcount.c
+++ b/fs/xfs/libxfs/xfs_refcount.c
@@ -1638,6 +1638,10 @@ xfs_refcount_recover_cow_leftovers(
 	error = xfs_alloc_read_agf(mp, tp, agno, 0, &agbp);
 	if (error)
 		goto out_trans;
+	if (!agbp) {
+		error = -ENOMEM;
+		goto out_trans;
+	}
 	cur = xfs_refcountbt_init_cursor(mp, tp, agbp, agno, NULL);
 
 	/* Find all the leftover CoW staging extents. */
diff --git a/fs/xfs/xfs_attr_list.c b/fs/xfs/xfs_attr_list.c
index 545eca508d42..7740c8a5e736 100644
--- a/fs/xfs/xfs_attr_list.c
+++ b/fs/xfs/xfs_attr_list.c
@@ -463,6 +463,8 @@ xfs_attr_list_int_ilocked(
 {
 	struct xfs_inode		*dp = context->dp;
 
+	ASSERT(xfs_isilocked(dp, XFS_ILOCK_SHARED | XFS_ILOCK_EXCL));
+
 	/*
 	 * Decide on what work routines to call based on the inode size.
 	 */
diff --git a/fs/xfs/xfs_dquot.c b/fs/xfs/xfs_dquot.c
index f89f7b5241e6..fd2ef8c2c9a7 100644
--- a/fs/xfs/xfs_dquot.c
+++ b/fs/xfs/xfs_dquot.c
@@ -472,23 +472,18 @@ xfs_qm_dqtobp(
 	struct xfs_mount	*mp = dqp->q_mount;
 	xfs_dqid_t		id = be32_to_cpu(dqp->q_core.d_id);
 	struct xfs_trans	*tp = (tpp ? *tpp : NULL);
-	uint			lock_mode = 0;
+	uint			lock_mode;
 
 	quotip = xfs_quota_inode(dqp->q_mount, dqp->dq_flags);
 	dqp->q_fileoffset = (xfs_fileoff_t)id / mp->m_quotainfo->qi_dqperchunk;
 
-	ASSERT(!(flags & XFS_QMOPT_NOLOCK) ||
-		xfs_isilocked(quotip, XFS_ILOCK_SHARED) ||
-		xfs_isilocked(quotip, XFS_ILOCK_EXCL));
-	if (!(flags & XFS_QMOPT_NOLOCK))
-		lock_mode = xfs_ilock_data_map_shared(quotip);
+	lock_mode = xfs_ilock_data_map_shared(quotip);
 	if (!xfs_this_quota_on(dqp->q_mount, dqp->dq_flags)) {
 		/*
 		 * Return if this type of quotas is turned off while we
 		 * didn't have the quota inode lock.
 		 */
-		if (lock_mode)
-			xfs_iunlock(quotip, lock_mode);
+		xfs_iunlock(quotip, lock_mode);
 		return -ESRCH;
 	}
 
@@ -498,8 +493,7 @@ xfs_qm_dqtobp(
 	error = xfs_bmapi_read(quotip, dqp->q_fileoffset,
 			       XFS_DQUOT_CLUSTER_SIZE_FSB, &map, &nmaps, 0);
 
-	if (lock_mode)
-		xfs_iunlock(quotip, lock_mode);
+	xfs_iunlock(quotip, lock_mode);
 	if (error)
 		return error;
 
diff --git a/fs/xfs/xfs_inode.c b/fs/xfs/xfs_inode.c
index ceef77c0416a..ff48f0096810 100644
--- a/fs/xfs/xfs_inode.c
+++ b/fs/xfs/xfs_inode.c
@@ -874,7 +874,6 @@ xfs_ialloc(
 	case S_IFREG:
 	case S_IFDIR:
 		if (pip && (pip->i_d.di_flags & XFS_DIFLAG_ANY)) {
-			uint64_t	di_flags2 = 0;
 			uint		di_flags = 0;
 
 			if (S_ISDIR(mode)) {
@@ -911,20 +910,23 @@ xfs_ialloc(
 				di_flags |= XFS_DIFLAG_NODEFRAG;
 			if (pip->i_d.di_flags & XFS_DIFLAG_FILESTREAM)
 				di_flags |= XFS_DIFLAG_FILESTREAM;
-			if (pip->i_d.di_flags2 & XFS_DIFLAG2_DAX)
-				di_flags2 |= XFS_DIFLAG2_DAX;
 
 			ip->i_d.di_flags |= di_flags;
-			ip->i_d.di_flags2 |= di_flags2;
 		}
 		if (pip &&
 		    (pip->i_d.di_flags2 & XFS_DIFLAG2_ANY) &&
 		    pip->i_d.di_version == 3 &&
 		    ip->i_d.di_version == 3) {
+			uint64_t	di_flags2 = 0;
+
 			if (pip->i_d.di_flags2 & XFS_DIFLAG2_COWEXTSIZE) {
-				ip->i_d.di_flags2 |= XFS_DIFLAG2_COWEXTSIZE;
+				di_flags2 |= XFS_DIFLAG2_COWEXTSIZE;
 				ip->i_d.di_cowextsize = pip->i_d.di_cowextsize;
 			}
+			if (pip->i_d.di_flags2 & XFS_DIFLAG2_DAX)
+				di_flags2 |= XFS_DIFLAG2_DAX;
+
+			ip->i_d.di_flags2 |= di_flags2;
 		}
 		/* FALLTHROUGH */
 	case S_IFLNK:
diff --git a/fs/xfs/xfs_log.c b/fs/xfs/xfs_log.c
index 0053bcf2b10a..4ebd0bafc914 100644
--- a/fs/xfs/xfs_log.c
+++ b/fs/xfs/xfs_log.c
@@ -749,9 +749,20 @@ xfs_log_mount_finish(
 		return 0;
 	}
 
+	/*
+	 * During the second phase of log recovery, we need iget and
+	 * iput to behave like they do for an active filesystem.
+	 * xfs_fs_drop_inode needs to be able to prevent the deletion
+	 * of inodes before we're done replaying log items on those
+	 * inodes.  Turn it off immediately after recovery finishes
+	 * so that we don't leak the quota inodes if subsequent mount
+	 * activities fail.
+	 */
+	mp->m_super->s_flags |= MS_ACTIVE;
 	error = xlog_recover_finish(mp->m_log);
 	if (!error)
 		xfs_log_work_queue(mp);
+	mp->m_super->s_flags &= ~MS_ACTIVE;
 
 	return error;
 }
diff --git a/fs/xfs/xfs_log_cil.c b/fs/xfs/xfs_log_cil.c
index fbe72b134bef..43aa42a3a5d3 100644
--- a/fs/xfs/xfs_log_cil.c
+++ b/fs/xfs/xfs_log_cil.c
@@ -539,6 +539,7 @@ xlog_discard_endio(
 
 	INIT_WORK(&ctx->discard_endio_work, xlog_discard_endio_work);
 	queue_work(xfs_discard_wq, &ctx->discard_endio_work);
+	bio_put(bio);
 }
 
 static void
diff --git a/fs/xfs/xfs_mount.c b/fs/xfs/xfs_mount.c
index 40d4e8b4e193..ea7d4b4e50d0 100644
--- a/fs/xfs/xfs_mount.c
+++ b/fs/xfs/xfs_mount.c
@@ -945,15 +945,6 @@ xfs_mountfs(
 	}
 
 	/*
-	 * During the second phase of log recovery, we need iget and
-	 * iput to behave like they do for an active filesystem.
-	 * xfs_fs_drop_inode needs to be able to prevent the deletion
-	 * of inodes before we're done replaying log items on those
-	 * inodes.
-	 */
-	mp->m_super->s_flags |= MS_ACTIVE;
-
-	/*
 	 * Finish recovering the file system.  This part needed to be delayed
 	 * until after the root and real-time bitmap inodes were consistently
 	 * read in.
@@ -1028,12 +1019,13 @@ xfs_mountfs(
  out_quota:
 	xfs_qm_unmount_quotas(mp);
  out_rtunmount:
-	mp->m_super->s_flags &= ~MS_ACTIVE;
 	xfs_rtunmount_inodes(mp);
  out_rele_rip:
 	IRELE(rip);
 	cancel_delayed_work_sync(&mp->m_reclaim_work);
 	xfs_reclaim_inodes(mp, SYNC_WAIT);
+	/* Clean out dquots that might be in memory after quotacheck. */
+	xfs_qm_unmount(mp);
  out_log_dealloc:
 	mp->m_flags |= XFS_MOUNT_UNMOUNTING;
 	xfs_log_mount_cancel(mp);
diff --git a/fs/xfs/xfs_qm.c b/fs/xfs/xfs_qm.c
index 6ce948c436d5..15751dc2a27d 100644
--- a/fs/xfs/xfs_qm.c
+++ b/fs/xfs/xfs_qm.c
@@ -111,6 +111,9 @@ restart:
 			skipped = 0;
 			break;
 		}
+		/* we're done if id overflows back to zero */
+		if (!next_index)
+			break;
 	}
 
 	if (skipped) {
diff --git a/fs/xfs/xfs_reflink.c b/fs/xfs/xfs_reflink.c
index ab2270a87196..f45fbf0db9bb 100644
--- a/fs/xfs/xfs_reflink.c
+++ b/fs/xfs/xfs_reflink.c
@@ -170,6 +170,8 @@ xfs_reflink_find_shared(
 	error = xfs_alloc_read_agf(mp, tp, agno, 0, &agbp);
 	if (error)
 		return error;
+	if (!agbp)
+		return -ENOMEM;
 
 	cur = xfs_refcountbt_init_cursor(mp, tp, agbp, agno, NULL);
 
@@ -329,7 +331,7 @@ xfs_reflink_convert_cow_extent(
 	xfs_filblks_t			count_fsb,
 	struct xfs_defer_ops		*dfops)
 {
-	xfs_fsblock_t			first_block;
+	xfs_fsblock_t			first_block = NULLFSBLOCK;
 	int				nimaps = 1;
 
 	if (imap->br_state == XFS_EXT_NORM)
diff --git a/fs/xfs/xfs_symlink.c b/fs/xfs/xfs_symlink.c
index 12cd9cf7de41..23a50d7aa46a 100644
--- a/fs/xfs/xfs_symlink.c
+++ b/fs/xfs/xfs_symlink.c
@@ -61,6 +61,8 @@ xfs_readlink_bmap_ilocked(
 	int			fsblocks = 0;
 	int			offset;
 
+	ASSERT(xfs_isilocked(ip, XFS_ILOCK_SHARED | XFS_ILOCK_EXCL));
+
 	fsblocks = xfs_symlink_blocks(mp, pathlen);
 	error = xfs_bmapi_read(ip, 0, fsblocks, mval, &nmaps, 0);
 	if (error)
diff --git a/include/acpi/acpi_numa.h b/include/acpi/acpi_numa.h
index d4b72944ccda..1e3a74f94131 100644
--- a/include/acpi/acpi_numa.h
+++ b/include/acpi/acpi_numa.h
@@ -3,6 +3,7 @@
 
 #ifdef CONFIG_ACPI_NUMA
 #include <linux/kernel.h>
+#include <linux/numa.h>
 
 /* Proximity bitmap length */
 #if MAX_NUMNODES > 256
diff --git a/include/asm-generic/tlb.h b/include/asm-generic/tlb.h
index 8afa4335e5b2..faddde44de8c 100644
--- a/include/asm-generic/tlb.h
+++ b/include/asm-generic/tlb.h
@@ -112,10 +112,11 @@ struct mmu_gather {
 
 #define HAVE_GENERIC_MMU_GATHER
 
-void tlb_gather_mmu(struct mmu_gather *tlb, struct mm_struct *mm, unsigned long start, unsigned long end);
+void arch_tlb_gather_mmu(struct mmu_gather *tlb,
+	struct mm_struct *mm, unsigned long start, unsigned long end);
 void tlb_flush_mmu(struct mmu_gather *tlb);
-void tlb_finish_mmu(struct mmu_gather *tlb, unsigned long start,
-							unsigned long end);
+void arch_tlb_finish_mmu(struct mmu_gather *tlb,
+			 unsigned long start, unsigned long end, bool force);
 extern bool __tlb_remove_page_size(struct mmu_gather *tlb, struct page *page,
 				   int page_size);
 
diff --git a/include/asm-generic/uaccess-unaligned.h b/include/asm-generic/uaccess-unaligned.h
deleted file mode 100644
index 67deb898f0c5..000000000000
--- a/include/asm-generic/uaccess-unaligned.h
+++ /dev/null
@@ -1,26 +0,0 @@
-#ifndef __ASM_GENERIC_UACCESS_UNALIGNED_H
-#define __ASM_GENERIC_UACCESS_UNALIGNED_H
-
-/*
- * This macro should be used instead of __get_user() when accessing
- * values at locations that are not known to be aligned.
- */
-#define __get_user_unaligned(x, ptr)					\
-({									\
-	__typeof__ (*(ptr)) __x;					\
-	__copy_from_user(&__x, (ptr), sizeof(*(ptr))) ? -EFAULT : 0;	\
-	(x) = __x;							\
-})
-
-
-/*
- * This macro should be used instead of __put_user() when accessing
- * values at locations that are not known to be aligned.
- */
-#define __put_user_unaligned(x, ptr)					\
-({									\
-	__typeof__ (*(ptr)) __x = (x);					\
-	__copy_to_user((ptr), &__x, sizeof(*(ptr))) ? -EFAULT : 0;	\
-})
-
-#endif /* __ASM_GENERIC_UACCESS_UNALIGNED_H */
diff --git a/include/drm/bridge/dw_hdmi.h b/include/drm/bridge/dw_hdmi.h
index 4c8d4c81a0e8..182f83283e24 100644
--- a/include/drm/bridge/dw_hdmi.h
+++ b/include/drm/bridge/dw_hdmi.h
@@ -22,56 +22,56 @@ struct dw_hdmi;
  * 48bit bus.
  *
  * +----------------------+----------------------------------+------------------------------+
- * + Format Name          + Format Code                      + Encodings                    +
+ * | Format Name          | Format Code                      | Encodings                    |
  * +----------------------+----------------------------------+------------------------------+
- * + RGB 4:4:4 8bit       + ``MEDIA_BUS_FMT_RGB888_1X24``    + ``V4L2_YCBCR_ENC_DEFAULT``   +
+ * | RGB 4:4:4 8bit       | ``MEDIA_BUS_FMT_RGB888_1X24``    | ``V4L2_YCBCR_ENC_DEFAULT``   |
  * +----------------------+----------------------------------+------------------------------+
- * + RGB 4:4:4 10bits     + ``MEDIA_BUS_FMT_RGB101010_1X30`` + ``V4L2_YCBCR_ENC_DEFAULT``   +
+ * | RGB 4:4:4 10bits     | ``MEDIA_BUS_FMT_RGB101010_1X30`` | ``V4L2_YCBCR_ENC_DEFAULT``   |
  * +----------------------+----------------------------------+------------------------------+
- * + RGB 4:4:4 12bits     + ``MEDIA_BUS_FMT_RGB121212_1X36`` + ``V4L2_YCBCR_ENC_DEFAULT``   +
+ * | RGB 4:4:4 12bits     | ``MEDIA_BUS_FMT_RGB121212_1X36`` | ``V4L2_YCBCR_ENC_DEFAULT``   |
  * +----------------------+----------------------------------+------------------------------+
- * + RGB 4:4:4 16bits     + ``MEDIA_BUS_FMT_RGB161616_1X48`` + ``V4L2_YCBCR_ENC_DEFAULT``   +
+ * | RGB 4:4:4 16bits     | ``MEDIA_BUS_FMT_RGB161616_1X48`` | ``V4L2_YCBCR_ENC_DEFAULT``   |
  * +----------------------+----------------------------------+------------------------------+
- * + YCbCr 4:4:4 8bit     + ``MEDIA_BUS_FMT_YUV8_1X24``      + ``V4L2_YCBCR_ENC_601``       +
- * +                      +                                  + or ``V4L2_YCBCR_ENC_709``    +
- * +                      +                                  + or ``V4L2_YCBCR_ENC_XV601``  +
- * +                      +                                  + or ``V4L2_YCBCR_ENC_XV709``  +
+ * | YCbCr 4:4:4 8bit     | ``MEDIA_BUS_FMT_YUV8_1X24``      | ``V4L2_YCBCR_ENC_601``       |
+ * |                      |                                  | or ``V4L2_YCBCR_ENC_709``    |
+ * |                      |                                  | or ``V4L2_YCBCR_ENC_XV601``  |
+ * |                      |                                  | or ``V4L2_YCBCR_ENC_XV709``  |
  * +----------------------+----------------------------------+------------------------------+
- * + YCbCr 4:4:4 10bits   + ``MEDIA_BUS_FMT_YUV10_1X30``     + ``V4L2_YCBCR_ENC_601``       +
- * +                      +                                  + or ``V4L2_YCBCR_ENC_709``    +
- * +                      +                                  + or ``V4L2_YCBCR_ENC_XV601``  +
- * +                      +                                  + or ``V4L2_YCBCR_ENC_XV709``  +
+ * | YCbCr 4:4:4 10bits   | ``MEDIA_BUS_FMT_YUV10_1X30``     | ``V4L2_YCBCR_ENC_601``       |
+ * |                      |                                  | or ``V4L2_YCBCR_ENC_709``    |
+ * |                      |                                  | or ``V4L2_YCBCR_ENC_XV601``  |
+ * |                      |                                  | or ``V4L2_YCBCR_ENC_XV709``  |
  * +----------------------+----------------------------------+------------------------------+
- * + YCbCr 4:4:4 12bits   + ``MEDIA_BUS_FMT_YUV12_1X36``     + ``V4L2_YCBCR_ENC_601``       +
- * +                      +                                  + or ``V4L2_YCBCR_ENC_709``    +
- * +                      +                                  + or ``V4L2_YCBCR_ENC_XV601``  +
- * +                      +                                  + or ``V4L2_YCBCR_ENC_XV709``  +
+ * | YCbCr 4:4:4 12bits   | ``MEDIA_BUS_FMT_YUV12_1X36``     | ``V4L2_YCBCR_ENC_601``       |
+ * |                      |                                  | or ``V4L2_YCBCR_ENC_709``    |
+ * |                      |                                  | or ``V4L2_YCBCR_ENC_XV601``  |
+ * |                      |                                  | or ``V4L2_YCBCR_ENC_XV709``  |
  * +----------------------+----------------------------------+------------------------------+
- * + YCbCr 4:4:4 16bits   + ``MEDIA_BUS_FMT_YUV16_1X48``     + ``V4L2_YCBCR_ENC_601``       +
- * +                      +                                  + or ``V4L2_YCBCR_ENC_709``    +
- * +                      +                                  + or ``V4L2_YCBCR_ENC_XV601``  +
- * +                      +                                  + or ``V4L2_YCBCR_ENC_XV709``  +
+ * | YCbCr 4:4:4 16bits   | ``MEDIA_BUS_FMT_YUV16_1X48``     | ``V4L2_YCBCR_ENC_601``       |
+ * |                      |                                  | or ``V4L2_YCBCR_ENC_709``    |
+ * |                      |                                  | or ``V4L2_YCBCR_ENC_XV601``  |
+ * |                      |                                  | or ``V4L2_YCBCR_ENC_XV709``  |
  * +----------------------+----------------------------------+------------------------------+
- * + YCbCr 4:2:2 8bit     + ``MEDIA_BUS_FMT_UYVY8_1X16``     + ``V4L2_YCBCR_ENC_601``       +
- * +                      +                                  + or ``V4L2_YCBCR_ENC_709``    +
+ * | YCbCr 4:2:2 8bit     | ``MEDIA_BUS_FMT_UYVY8_1X16``     | ``V4L2_YCBCR_ENC_601``       |
+ * |                      |                                  | or ``V4L2_YCBCR_ENC_709``    |
  * +----------------------+----------------------------------+------------------------------+
- * + YCbCr 4:2:2 10bits   + ``MEDIA_BUS_FMT_UYVY10_1X20``    + ``V4L2_YCBCR_ENC_601``       +
- * +                      +                                  + or ``V4L2_YCBCR_ENC_709``    +
+ * | YCbCr 4:2:2 10bits   | ``MEDIA_BUS_FMT_UYVY10_1X20``    | ``V4L2_YCBCR_ENC_601``       |
+ * |                      |                                  | or ``V4L2_YCBCR_ENC_709``    |
  * +----------------------+----------------------------------+------------------------------+
- * + YCbCr 4:2:2 12bits   + ``MEDIA_BUS_FMT_UYVY12_1X24``    + ``V4L2_YCBCR_ENC_601``       +
- * +                      +                                  + or ``V4L2_YCBCR_ENC_709``    +
+ * | YCbCr 4:2:2 12bits   | ``MEDIA_BUS_FMT_UYVY12_1X24``    | ``V4L2_YCBCR_ENC_601``       |
+ * |                      |                                  | or ``V4L2_YCBCR_ENC_709``    |
  * +----------------------+----------------------------------+------------------------------+
- * + YCbCr 4:2:0 8bit     + ``MEDIA_BUS_FMT_UYYVYY8_0_5X24`` + ``V4L2_YCBCR_ENC_601``       +
- * +                      +                                  + or ``V4L2_YCBCR_ENC_709``    +
+ * | YCbCr 4:2:0 8bit     | ``MEDIA_BUS_FMT_UYYVYY8_0_5X24`` | ``V4L2_YCBCR_ENC_601``       |
+ * |                      |                                  | or ``V4L2_YCBCR_ENC_709``    |
  * +----------------------+----------------------------------+------------------------------+
- * + YCbCr 4:2:0 10bits   + ``MEDIA_BUS_FMT_UYYVYY10_0_5X30``+ ``V4L2_YCBCR_ENC_601``       +
- * +                      +                                  + or ``V4L2_YCBCR_ENC_709``    +
+ * | YCbCr 4:2:0 10bits   | ``MEDIA_BUS_FMT_UYYVYY10_0_5X30``| ``V4L2_YCBCR_ENC_601``       |
+ * |                      |                                  | or ``V4L2_YCBCR_ENC_709``    |
  * +----------------------+----------------------------------+------------------------------+
- * + YCbCr 4:2:0 12bits   + ``MEDIA_BUS_FMT_UYYVYY12_0_5X36``+ ``V4L2_YCBCR_ENC_601``       +
- * +                      +                                  + or ``V4L2_YCBCR_ENC_709``    +
+ * | YCbCr 4:2:0 12bits   | ``MEDIA_BUS_FMT_UYYVYY12_0_5X36``| ``V4L2_YCBCR_ENC_601``       |
+ * |                      |                                  | or ``V4L2_YCBCR_ENC_709``    |
  * +----------------------+----------------------------------+------------------------------+
- * + YCbCr 4:2:0 16bits   + ``MEDIA_BUS_FMT_UYYVYY16_0_5X48``+ ``V4L2_YCBCR_ENC_601``       +
- * +                      +                                  + or ``V4L2_YCBCR_ENC_709``    +
+ * | YCbCr 4:2:0 16bits   | ``MEDIA_BUS_FMT_UYYVYY16_0_5X48``| ``V4L2_YCBCR_ENC_601``       |
+ * |                      |                                  | or ``V4L2_YCBCR_ENC_709``    |
  * +----------------------+----------------------------------+------------------------------+
  */
 
diff --git a/include/dt-bindings/clock/boston-clock.h b/include/dt-bindings/clock/boston-clock.h
new file mode 100644
index 000000000000..a6f009821137
--- /dev/null
+++ b/include/dt-bindings/clock/boston-clock.h
@@ -0,0 +1,14 @@
+/*
+ * Copyright (C) 2016 Imagination Technologies
+ *
+ * SPDX-License-Identifier:	GPL-2.0
+ */
+
+#ifndef __DT_BINDINGS_CLOCK_BOSTON_CLOCK_H__
+#define __DT_BINDINGS_CLOCK_BOSTON_CLOCK_H__
+
+#define BOSTON_CLK_INPUT 0
+#define BOSTON_CLK_SYS 1
+#define BOSTON_CLK_CPU 2
+
+#endif /* __DT_BINDINGS_CLOCK_BOSTON_CLOCK_H__ */
diff --git a/include/kvm/arm_pmu.h b/include/kvm/arm_pmu.h
index f6e030617467..f87fe20fcb05 100644
--- a/include/kvm/arm_pmu.h
+++ b/include/kvm/arm_pmu.h
@@ -48,7 +48,6 @@ void kvm_pmu_vcpu_reset(struct kvm_vcpu *vcpu);
 void kvm_pmu_vcpu_destroy(struct kvm_vcpu *vcpu);
 void kvm_pmu_disable_counter(struct kvm_vcpu *vcpu, u64 val);
 void kvm_pmu_enable_counter(struct kvm_vcpu *vcpu, u64 val);
-void kvm_pmu_overflow_set(struct kvm_vcpu *vcpu, u64 val);
 void kvm_pmu_flush_hwstate(struct kvm_vcpu *vcpu);
 void kvm_pmu_sync_hwstate(struct kvm_vcpu *vcpu);
 bool kvm_pmu_should_notify_user(struct kvm_vcpu *vcpu);
@@ -86,7 +85,6 @@ static inline void kvm_pmu_vcpu_reset(struct kvm_vcpu *vcpu) {}
 static inline void kvm_pmu_vcpu_destroy(struct kvm_vcpu *vcpu) {}
 static inline void kvm_pmu_disable_counter(struct kvm_vcpu *vcpu, u64 val) {}
 static inline void kvm_pmu_enable_counter(struct kvm_vcpu *vcpu, u64 val) {}
-static inline void kvm_pmu_overflow_set(struct kvm_vcpu *vcpu, u64 val) {}
 static inline void kvm_pmu_flush_hwstate(struct kvm_vcpu *vcpu) {}
 static inline void kvm_pmu_sync_hwstate(struct kvm_vcpu *vcpu) {}
 static inline bool kvm_pmu_should_notify_user(struct kvm_vcpu *vcpu)
diff --git a/include/linux/acpi.h b/include/linux/acpi.h
index c749eef1daa1..27b4b6615263 100644
--- a/include/linux/acpi.h
+++ b/include/linux/acpi.h
@@ -1209,6 +1209,7 @@ static inline bool acpi_has_watchdog(void) { return false; }
 #endif
 
 #ifdef CONFIG_ACPI_SPCR_TABLE
+extern bool qdf2400_e44_present;
 int parse_spcr(bool earlycon);
 #else
 static inline int parse_spcr(bool earlycon) { return 0; }
diff --git a/include/linux/backing-dev.h b/include/linux/backing-dev.h
index 334165c911f0..854e1bdd0b2a 100644
--- a/include/linux/backing-dev.h
+++ b/include/linux/backing-dev.h
@@ -69,34 +69,14 @@ static inline void __add_wb_stat(struct bdi_writeback *wb,
 	percpu_counter_add_batch(&wb->stat[item], amount, WB_STAT_BATCH);
 }
 
-static inline void __inc_wb_stat(struct bdi_writeback *wb,
-				 enum wb_stat_item item)
-{
-	__add_wb_stat(wb, item, 1);
-}
-
 static inline void inc_wb_stat(struct bdi_writeback *wb, enum wb_stat_item item)
 {
-	unsigned long flags;
-
-	local_irq_save(flags);
-	__inc_wb_stat(wb, item);
-	local_irq_restore(flags);
-}
-
-static inline void __dec_wb_stat(struct bdi_writeback *wb,
-				 enum wb_stat_item item)
-{
-	__add_wb_stat(wb, item, -1);
+	__add_wb_stat(wb, item, 1);
 }
 
 static inline void dec_wb_stat(struct bdi_writeback *wb, enum wb_stat_item item)
 {
-	unsigned long flags;
-
-	local_irq_save(flags);
-	__dec_wb_stat(wb, item);
-	local_irq_restore(flags);
+	__add_wb_stat(wb, item, -1);
 }
 
 static inline s64 wb_stat(struct bdi_writeback *wb, enum wb_stat_item item)
diff --git a/include/linux/binfmts.h b/include/linux/binfmts.h
index 05488da3aee9..3ae9013eeaaa 100644
--- a/include/linux/binfmts.h
+++ b/include/linux/binfmts.h
@@ -46,7 +46,7 @@ struct linux_binprm {
 	unsigned interp_flags;
 	unsigned interp_data;
 	unsigned long loader, exec;
-};
+} __randomize_layout;
 
 #define BINPRM_FLAGS_ENFORCE_NONDUMP_BIT 0
 #define BINPRM_FLAGS_ENFORCE_NONDUMP (1 << BINPRM_FLAGS_ENFORCE_NONDUMP_BIT)
@@ -81,7 +81,7 @@ struct linux_binfmt {
 	int (*load_shlib)(struct file *);
 	int (*core_dump)(struct coredump_params *cprm);
 	unsigned long min_coredump;	/* minimal dump size */
-};
+} __randomize_layout;
 
 extern void __register_binfmt(struct linux_binfmt *fmt, int insert);
 
diff --git a/include/linux/bpf-cgroup.h b/include/linux/bpf-cgroup.h
index 360c082e885c..d41d40ac3efd 100644
--- a/include/linux/bpf-cgroup.h
+++ b/include/linux/bpf-cgroup.h
@@ -85,7 +85,7 @@ int __cgroup_bpf_run_filter_sock_ops(struct sock *sk,
 	int __ret = 0;							       \
 	if (cgroup_bpf_enabled && (sock_ops)->sk) {	       \
 		typeof(sk) __sk = sk_to_full_sk((sock_ops)->sk);	       \
-		if (sk_fullsock(__sk))					       \
+		if (__sk && sk_fullsock(__sk))				       \
 			__ret = __cgroup_bpf_run_filter_sock_ops(__sk,	       \
 								 sock_ops,     \
 							 BPF_CGROUP_SOCK_OPS); \
diff --git a/include/linux/bpf_verifier.h b/include/linux/bpf_verifier.h
index 621076f56251..8e5d31f6faef 100644
--- a/include/linux/bpf_verifier.h
+++ b/include/linux/bpf_verifier.h
@@ -43,6 +43,7 @@ struct bpf_reg_state {
 	u32 min_align;
 	u32 aux_off;
 	u32 aux_off_align;
+	bool value_from_signed;
 };
 
 enum bpf_stack_slot_type {
diff --git a/include/linux/cdev.h b/include/linux/cdev.h
index 408bc09ce497..cb28eb21e3ca 100644
--- a/include/linux/cdev.h
+++ b/include/linux/cdev.h
@@ -17,7 +17,7 @@ struct cdev {
 	struct list_head list;
 	dev_t dev;
 	unsigned int count;
-};
+} __randomize_layout;
 
 void cdev_init(struct cdev *, const struct file_operations *);
 
diff --git a/include/linux/ceph/ceph_features.h b/include/linux/ceph/ceph_features.h
index f0f6c537b64c..040dd105c3e7 100644
--- a/include/linux/ceph/ceph_features.h
+++ b/include/linux/ceph/ceph_features.h
@@ -10,14 +10,14 @@
 #define CEPH_FEATURE_INCARNATION_2 (1ull<<57) // CEPH_FEATURE_SERVER_JEWEL
 
 #define DEFINE_CEPH_FEATURE(bit, incarnation, name)			\
-	const static uint64_t CEPH_FEATURE_##name = (1ULL<<bit);		\
-	const static uint64_t CEPH_FEATUREMASK_##name =			\
+	static const uint64_t CEPH_FEATURE_##name = (1ULL<<bit);		\
+	static const uint64_t CEPH_FEATUREMASK_##name =			\
 		(1ULL<<bit | CEPH_FEATURE_INCARNATION_##incarnation);
 
 /* this bit is ignored but still advertised by release *when* */
 #define DEFINE_CEPH_FEATURE_DEPRECATED(bit, incarnation, name, when) \
-	const static uint64_t DEPRECATED_CEPH_FEATURE_##name = (1ULL<<bit); \
-	const static uint64_t DEPRECATED_CEPH_FEATUREMASK_##name =		\
+	static const uint64_t DEPRECATED_CEPH_FEATURE_##name = (1ULL<<bit); \
+	static const uint64_t DEPRECATED_CEPH_FEATUREMASK_##name =		\
 		(1ULL<<bit | CEPH_FEATURE_INCARNATION_##incarnation);
 
 /*
diff --git a/include/linux/ceph/osd_client.h b/include/linux/ceph/osd_client.h
index c6d96a5f46fd..adf670ecaf94 100644
--- a/include/linux/ceph/osd_client.h
+++ b/include/linux/ceph/osd_client.h
@@ -148,6 +148,7 @@ struct ceph_osd_request_target {
 	int size;
 	int min_size;
 	bool sort_bitwise;
+	bool recovery_deletes;
 
 	unsigned int flags;                /* CEPH_OSD_FLAG_* */
 	bool paused;
diff --git a/include/linux/ceph/osdmap.h b/include/linux/ceph/osdmap.h
index a0996cb9faed..af3444a5bfdd 100644
--- a/include/linux/ceph/osdmap.h
+++ b/include/linux/ceph/osdmap.h
@@ -272,6 +272,8 @@ bool ceph_is_new_interval(const struct ceph_osds *old_acting,
 			  u32 new_pg_num,
 			  bool old_sort_bitwise,
 			  bool new_sort_bitwise,
+			  bool old_recovery_deletes,
+			  bool new_recovery_deletes,
 			  const struct ceph_pg *pgid);
 bool ceph_osds_changed(const struct ceph_osds *old_acting,
 		       const struct ceph_osds *new_acting,
diff --git a/include/linux/ceph/rados.h b/include/linux/ceph/rados.h
index 385db08bb8b2..b8281feda9c7 100644
--- a/include/linux/ceph/rados.h
+++ b/include/linux/ceph/rados.h
@@ -158,6 +158,10 @@ extern const char *ceph_osd_state_name(int s);
 #define CEPH_OSDMAP_NOTIERAGENT (1<<13) /* disable tiering agent */
 #define CEPH_OSDMAP_NOREBALANCE (1<<14) /* block osd backfill unless pg is degraded */
 #define CEPH_OSDMAP_SORTBITWISE (1<<15) /* use bitwise hobject_t sort */
+#define CEPH_OSDMAP_REQUIRE_JEWEL    (1<<16) /* require jewel for booting osds */
+#define CEPH_OSDMAP_REQUIRE_KRAKEN   (1<<17) /* require kraken for booting osds */
+#define CEPH_OSDMAP_REQUIRE_LUMINOUS (1<<18) /* require l for booting osds */
+#define CEPH_OSDMAP_RECOVERY_DELETES (1<<19) /* deletes performed during recovery instead of peering */
 
 /*
  * The error code to return when an OSD can't handle a write
diff --git a/include/linux/clk.h b/include/linux/clk.h
index 91bd464f4c9b..12c96d94d1fa 100644
--- a/include/linux/clk.h
+++ b/include/linux/clk.h
@@ -657,6 +657,28 @@ static inline void clk_disable_unprepare(struct clk *clk)
 	clk_unprepare(clk);
 }
 
+static inline int clk_bulk_prepare_enable(int num_clks,
+					  struct clk_bulk_data *clks)
+{
+	int ret;
+
+	ret = clk_bulk_prepare(num_clks, clks);
+	if (ret)
+		return ret;
+	ret = clk_bulk_enable(num_clks, clks);
+	if (ret)
+		clk_bulk_unprepare(num_clks, clks);
+
+	return ret;
+}
+
+static inline void clk_bulk_disable_unprepare(int num_clks,
+					      struct clk_bulk_data *clks)
+{
+	clk_bulk_disable(num_clks, clks);
+	clk_bulk_unprepare(num_clks, clks);
+}
+
 #if defined(CONFIG_OF) && defined(CONFIG_COMMON_CLK)
 struct clk *of_clk_get(struct device_node *np, int index);
 struct clk *of_clk_get_by_name(struct device_node *np, const char *name);
diff --git a/include/linux/compiler-gcc.h b/include/linux/compiler-gcc.h
index cd4bbe8242bd..bdb80c4aef6e 100644
--- a/include/linux/compiler-gcc.h
+++ b/include/linux/compiler-gcc.h
@@ -235,6 +235,7 @@
 #endif /* GCC_VERSION >= 40500 */
 
 #if GCC_VERSION >= 40600
+
 /*
  * When used with Link Time Optimization, gcc can optimize away C functions or
  * variables which are referenced only from assembly code.  __visible tells the
@@ -242,7 +243,17 @@
  * this.
  */
 #define __visible	__attribute__((externally_visible))
-#endif
+
+/*
+ * RANDSTRUCT_PLUGIN wants to use an anonymous struct, but it is only
+ * possible since GCC 4.6. To provide as much build testing coverage
+ * as possible, this is used for all GCC 4.6+ builds, and not just on
+ * RANDSTRUCT_PLUGIN builds.
+ */
+#define randomized_struct_fields_start	struct {
+#define randomized_struct_fields_end	} __randomize_layout;
+
+#endif /* GCC_VERSION >= 40600 */
 
 
 #if GCC_VERSION >= 40900 && !defined(__CHECKER__)
diff --git a/include/linux/compiler.h b/include/linux/compiler.h
index 219f82f3ec1a..eca8ad75e28b 100644
--- a/include/linux/compiler.h
+++ b/include/linux/compiler.h
@@ -452,6 +452,11 @@ static __always_inline void __write_once_size(volatile void *p, void *res, int s
 # define __no_randomize_layout
 #endif
 
+#ifndef randomized_struct_fields_start
+# define randomized_struct_fields_start
+# define randomized_struct_fields_end
+#endif
+
 /*
  * Tell gcc if a function is cold. The compiler will assume any path
  * directly leading to the call is unlikely.
diff --git a/include/linux/cpu_cooling.h b/include/linux/cpu_cooling.h
index c156f5082758..d4292ebc5c8b 100644
--- a/include/linux/cpu_cooling.h
+++ b/include/linux/cpu_cooling.h
@@ -28,47 +28,49 @@
 #include <linux/thermal.h>
 #include <linux/cpumask.h>
 
+struct cpufreq_policy;
+
 typedef int (*get_static_t)(cpumask_t *cpumask, int interval,
 			    unsigned long voltage, u32 *power);
 
 #ifdef CONFIG_CPU_THERMAL
 /**
  * cpufreq_cooling_register - function to create cpufreq cooling device.
- * @clip_cpus: cpumask of cpus where the frequency constraints will happen
+ * @policy: cpufreq policy.
  */
 struct thermal_cooling_device *
-cpufreq_cooling_register(const struct cpumask *clip_cpus);
+cpufreq_cooling_register(struct cpufreq_policy *policy);
 
 struct thermal_cooling_device *
-cpufreq_power_cooling_register(const struct cpumask *clip_cpus,
+cpufreq_power_cooling_register(struct cpufreq_policy *policy,
 			       u32 capacitance, get_static_t plat_static_func);
 
 /**
  * of_cpufreq_cooling_register - create cpufreq cooling device based on DT.
  * @np: a valid struct device_node to the cooling device device tree node.
- * @clip_cpus: cpumask of cpus where the frequency constraints will happen
+ * @policy: cpufreq policy.
  */
 #ifdef CONFIG_THERMAL_OF
 struct thermal_cooling_device *
 of_cpufreq_cooling_register(struct device_node *np,
-			    const struct cpumask *clip_cpus);
+			    struct cpufreq_policy *policy);
 
 struct thermal_cooling_device *
 of_cpufreq_power_cooling_register(struct device_node *np,
-				  const struct cpumask *clip_cpus,
+				  struct cpufreq_policy *policy,
 				  u32 capacitance,
 				  get_static_t plat_static_func);
 #else
 static inline struct thermal_cooling_device *
 of_cpufreq_cooling_register(struct device_node *np,
-			    const struct cpumask *clip_cpus)
+			    struct cpufreq_policy *policy)
 {
 	return ERR_PTR(-ENOSYS);
 }
 
 static inline struct thermal_cooling_device *
 of_cpufreq_power_cooling_register(struct device_node *np,
-				  const struct cpumask *clip_cpus,
+				  struct cpufreq_policy *policy,
 				  u32 capacitance,
 				  get_static_t plat_static_func)
 {
@@ -82,15 +84,14 @@ of_cpufreq_power_cooling_register(struct device_node *np,
  */
 void cpufreq_cooling_unregister(struct thermal_cooling_device *cdev);
 
-unsigned long cpufreq_cooling_get_level(unsigned int cpu, unsigned int freq);
 #else /* !CONFIG_CPU_THERMAL */
 static inline struct thermal_cooling_device *
-cpufreq_cooling_register(const struct cpumask *clip_cpus)
+cpufreq_cooling_register(struct cpufreq_policy *policy)
 {
 	return ERR_PTR(-ENOSYS);
 }
 static inline struct thermal_cooling_device *
-cpufreq_power_cooling_register(const struct cpumask *clip_cpus,
+cpufreq_power_cooling_register(struct cpufreq_policy *policy,
 			       u32 capacitance, get_static_t plat_static_func)
 {
 	return NULL;
@@ -98,14 +99,14 @@ cpufreq_power_cooling_register(const struct cpumask *clip_cpus,
 
 static inline struct thermal_cooling_device *
 of_cpufreq_cooling_register(struct device_node *np,
-			    const struct cpumask *clip_cpus)
+			    struct cpufreq_policy *policy)
 {
 	return ERR_PTR(-ENOSYS);
 }
 
 static inline struct thermal_cooling_device *
 of_cpufreq_power_cooling_register(struct device_node *np,
-				  const struct cpumask *clip_cpus,
+				  struct cpufreq_policy *policy,
 				  u32 capacitance,
 				  get_static_t plat_static_func)
 {
@@ -117,11 +118,6 @@ void cpufreq_cooling_unregister(struct thermal_cooling_device *cdev)
 {
 	return;
 }
-static inline
-unsigned long cpufreq_cooling_get_level(unsigned int cpu, unsigned int freq)
-{
-	return THERMAL_CSTATE_INVALID;
-}
 #endif	/* CONFIG_CPU_THERMAL */
 
 #endif /* __CPU_COOLING_H__ */
diff --git a/include/linux/cpufreq.h b/include/linux/cpufreq.h
index 905117bd5012..f10a9b3761cd 100644
--- a/include/linux/cpufreq.h
+++ b/include/linux/cpufreq.h
@@ -862,6 +862,20 @@ static inline int cpufreq_frequency_table_target(struct cpufreq_policy *policy,
 		return -EINVAL;
 	}
 }
+
+static inline int cpufreq_table_count_valid_entries(const struct cpufreq_policy *policy)
+{
+	struct cpufreq_frequency_table *pos;
+	int count = 0;
+
+	if (unlikely(!policy->freq_table))
+		return 0;
+
+	cpufreq_for_each_valid_entry(pos, policy->freq_table)
+		count++;
+
+	return count;
+}
 #else
 static inline int cpufreq_boost_trigger_state(int state)
 {
diff --git a/include/linux/cpuset.h b/include/linux/cpuset.h
index 119a3f9604b0..898cfe2eeb42 100644
--- a/include/linux/cpuset.h
+++ b/include/linux/cpuset.h
@@ -18,6 +18,19 @@
 
 #ifdef CONFIG_CPUSETS
 
+/*
+ * Static branch rewrites can happen in an arbitrary order for a given
+ * key. In code paths where we need to loop with read_mems_allowed_begin() and
+ * read_mems_allowed_retry() to get a consistent view of mems_allowed, we need
+ * to ensure that begin() always gets rewritten before retry() in the
+ * disabled -> enabled transition. If not, then if local irqs are disabled
+ * around the loop, we can deadlock since retry() would always be
+ * comparing the latest value of the mems_allowed seqcount against 0 as
+ * begin() still would see cpusets_enabled() as false. The enabled -> disabled
+ * transition should happen in reverse order for the same reasons (want to stop
+ * looking at real value of mems_allowed.sequence in retry() first).
+ */
+extern struct static_key_false cpusets_pre_enable_key;
 extern struct static_key_false cpusets_enabled_key;
 static inline bool cpusets_enabled(void)
 {
@@ -32,12 +45,14 @@ static inline int nr_cpusets(void)
 
 static inline void cpuset_inc(void)
 {
+	static_branch_inc(&cpusets_pre_enable_key);
 	static_branch_inc(&cpusets_enabled_key);
 }
 
 static inline void cpuset_dec(void)
 {
 	static_branch_dec(&cpusets_enabled_key);
+	static_branch_dec(&cpusets_pre_enable_key);
 }
 
 extern int cpuset_init(void);
@@ -115,7 +130,7 @@ extern void cpuset_print_current_mems_allowed(void);
  */
 static inline unsigned int read_mems_allowed_begin(void)
 {
-	if (!cpusets_enabled())
+	if (!static_branch_unlikely(&cpusets_pre_enable_key))
 		return 0;
 
 	return read_seqcount_begin(&current->mems_allowed_seq);
@@ -129,7 +144,7 @@ static inline unsigned int read_mems_allowed_begin(void)
  */
 static inline bool read_mems_allowed_retry(unsigned int seq)
 {
-	if (!cpusets_enabled())
+	if (!static_branch_unlikely(&cpusets_enabled_key))
 		return false;
 
 	return read_seqcount_retry(&current->mems_allowed_seq, seq);
diff --git a/include/linux/crash_core.h b/include/linux/crash_core.h
index 4090a42578a8..2df2118fbe13 100644
--- a/include/linux/crash_core.h
+++ b/include/linux/crash_core.h
@@ -19,7 +19,7 @@
 				     CRASH_CORE_NOTE_NAME_BYTES +	\
 				     CRASH_CORE_NOTE_DESC_BYTES)
 
-#define VMCOREINFO_BYTES	   (4096)
+#define VMCOREINFO_BYTES	   PAGE_SIZE
 #define VMCOREINFO_NOTE_NAME	   "VMCOREINFO"
 #define VMCOREINFO_NOTE_NAME_BYTES ALIGN(sizeof(VMCOREINFO_NOTE_NAME), 4)
 #define VMCOREINFO_NOTE_SIZE	   ((CRASH_CORE_NOTE_HEAD_BYTES * 2) +	\
@@ -28,6 +28,7 @@
 
 typedef u32 note_buf_t[CRASH_CORE_NOTE_BYTES/4];
 
+void crash_update_vmcoreinfo_safecopy(void *ptr);
 void crash_save_vmcoreinfo(void);
 void arch_crash_save_vmcoreinfo(void);
 __printf(1, 2)
@@ -56,9 +57,7 @@ phys_addr_t paddr_vmcoreinfo_note(void);
 #define VMCOREINFO_CONFIG(name) \
 	vmcoreinfo_append_str("CONFIG_%s=y\n", #name)
 
-extern u32 vmcoreinfo_note[VMCOREINFO_NOTE_SIZE/4];
-extern size_t vmcoreinfo_size;
-extern size_t vmcoreinfo_max_size;
+extern u32 *vmcoreinfo_note;
 
 Elf_Word *append_elf_note(Elf_Word *buf, char *name, unsigned int type,
 			  void *data, size_t data_len);
diff --git a/include/linux/cred.h b/include/linux/cred.h
index c728d515e5e2..099058e1178b 100644
--- a/include/linux/cred.h
+++ b/include/linux/cred.h
@@ -31,7 +31,7 @@ struct group_info {
 	atomic_t	usage;
 	int		ngroups;
 	kgid_t		gid[0];
-};
+} __randomize_layout;
 
 /**
  * get_group_info - Get a reference to a group info structure
@@ -145,7 +145,7 @@ struct cred {
 	struct user_namespace *user_ns; /* user_ns the caps and keyrings are relative to. */
 	struct group_info *group_info;	/* supplementary groups for euid/fsgid */
 	struct rcu_head	rcu;		/* RCU deletion hook */
-};
+} __randomize_layout;
 
 extern void __put_cred(struct cred *);
 extern void exit_creds(struct task_struct *);
diff --git a/include/linux/crush/crush.h b/include/linux/crush/crush.h
index 92e165d417a6..07eed95e10c7 100644
--- a/include/linux/crush/crush.h
+++ b/include/linux/crush/crush.h
@@ -193,7 +193,7 @@ struct crush_choose_arg {
 struct crush_choose_arg_map {
 #ifdef __KERNEL__
 	struct rb_node node;
-	u64 choose_args_index;
+	s64 choose_args_index;
 #endif
 	struct crush_choose_arg *args; /*!< replacement for each bucket
                                             in the crushmap */
diff --git a/include/linux/dax.h b/include/linux/dax.h
index 794811875732..df97b7af7e2c 100644
--- a/include/linux/dax.h
+++ b/include/linux/dax.h
@@ -87,6 +87,7 @@ size_t dax_copy_from_iter(struct dax_device *dax_dev, pgoff_t pgoff, void *addr,
 void dax_flush(struct dax_device *dax_dev, pgoff_t pgoff, void *addr,
 		size_t size);
 void dax_write_cache(struct dax_device *dax_dev, bool wc);
+bool dax_write_cache_enabled(struct dax_device *dax_dev);
 
 /*
  * We use lowest available bit in exceptional entry for locking, one bit for
diff --git a/include/linux/dcache.h b/include/linux/dcache.h
index 025727bf6797..aae1cdb76851 100644
--- a/include/linux/dcache.h
+++ b/include/linux/dcache.h
@@ -55,6 +55,11 @@ struct qstr {
 
 #define QSTR_INIT(n,l) { { { .len = l } }, .name = n }
 
+extern const char empty_string[];
+extern const struct qstr empty_name;
+extern const char slash_string[];
+extern const struct qstr slash_name;
+
 struct dentry_stat_t {
 	long nr_dentry;
 	long nr_unused;
@@ -113,7 +118,7 @@ struct dentry {
 		struct hlist_bl_node d_in_lookup_hash;	/* only for in-lookup ones */
 	 	struct rcu_head d_rcu;
 	} d_u;
-};
+} __randomize_layout;
 
 /*
  * dentry->d_lock spinlock nesting subclasses:
@@ -592,8 +597,8 @@ static inline struct inode *d_real_inode(const struct dentry *dentry)
 }
 
 struct name_snapshot {
-	const char *name;
-	char inline_name[DNAME_INLINE_LEN];
+	const unsigned char *name;
+	unsigned char inline_name[DNAME_INLINE_LEN];
 };
 void take_dentry_name_snapshot(struct name_snapshot *, struct dentry *);
 void release_dentry_name_snapshot(struct name_snapshot *);
diff --git a/include/linux/device.h b/include/linux/device.h
index 723cd54b94da..beabdbc08420 100644
--- a/include/linux/device.h
+++ b/include/linux/device.h
@@ -843,7 +843,7 @@ struct dev_links_info {
  * 		hibernation, system resume and during runtime PM transitions
  * 		along with subsystem-level and driver-level callbacks.
  * @pins:	For device pin management.
- *		See Documentation/pinctrl.txt for details.
+ *		See Documentation/driver-api/pinctl.rst for details.
  * @msi_list:	Hosts MSI descriptors
  * @msi_domain: The generic MSI domain this device is using.
  * @numa_node:	NUMA node this device is close to.
diff --git a/include/linux/devpts_fs.h b/include/linux/devpts_fs.h
index 277ab9af9ac2..7883e901f65c 100644
--- a/include/linux/devpts_fs.h
+++ b/include/linux/devpts_fs.h
@@ -19,7 +19,7 @@
 
 struct pts_fs_info;
 
-struct pts_fs_info *devpts_acquire(struct file *);
+struct pts_fs_info *devpts_acquire(struct file *, struct vfsmount **ptsmnt);
 void devpts_release(struct pts_fs_info *);
 
 int devpts_new_index(struct pts_fs_info *);
diff --git a/include/linux/dma-fence.h b/include/linux/dma-fence.h
index a5195a7d6f77..0a186c4f3981 100644
--- a/include/linux/dma-fence.h
+++ b/include/linux/dma-fence.h
@@ -55,6 +55,7 @@ struct dma_fence_cb;
  * of the time.
  *
  * DMA_FENCE_FLAG_SIGNALED_BIT - fence is already signaled
+ * DMA_FENCE_FLAG_TIMESTAMP_BIT - timestamp recorded for fence signaling
  * DMA_FENCE_FLAG_ENABLE_SIGNAL_BIT - enable_signaling might have been called
  * DMA_FENCE_FLAG_USER_BITS - start of the unused bits, can be used by the
  * implementer of the fence for its own purposes. Can be used in different
@@ -84,6 +85,7 @@ struct dma_fence {
 
 enum dma_fence_flag_bits {
 	DMA_FENCE_FLAG_SIGNALED_BIT,
+	DMA_FENCE_FLAG_TIMESTAMP_BIT,
 	DMA_FENCE_FLAG_ENABLE_SIGNAL_BIT,
 	DMA_FENCE_FLAG_USER_BITS, /* must always be last member */
 };
diff --git a/include/linux/dma-mapping.h b/include/linux/dma-mapping.h
index 843ab866e0f4..03c0196a6f24 100644
--- a/include/linux/dma-mapping.h
+++ b/include/linux/dma-mapping.h
@@ -157,16 +157,40 @@ static inline int is_device_dma_capable(struct device *dev)
  * These three functions are only for dma allocator.
  * Don't use them in device drivers.
  */
-int dma_alloc_from_coherent(struct device *dev, ssize_t size,
+int dma_alloc_from_dev_coherent(struct device *dev, ssize_t size,
 				       dma_addr_t *dma_handle, void **ret);
-int dma_release_from_coherent(struct device *dev, int order, void *vaddr);
+int dma_release_from_dev_coherent(struct device *dev, int order, void *vaddr);
 
-int dma_mmap_from_coherent(struct device *dev, struct vm_area_struct *vma,
+int dma_mmap_from_dev_coherent(struct device *dev, struct vm_area_struct *vma,
 			    void *cpu_addr, size_t size, int *ret);
+
+void *dma_alloc_from_global_coherent(ssize_t size, dma_addr_t *dma_handle);
+int dma_release_from_global_coherent(int order, void *vaddr);
+int dma_mmap_from_global_coherent(struct vm_area_struct *vma, void *cpu_addr,
+				  size_t size, int *ret);
+
 #else
-#define dma_alloc_from_coherent(dev, size, handle, ret) (0)
-#define dma_release_from_coherent(dev, order, vaddr) (0)
-#define dma_mmap_from_coherent(dev, vma, vaddr, order, ret) (0)
+#define dma_alloc_from_dev_coherent(dev, size, handle, ret) (0)
+#define dma_release_from_dev_coherent(dev, order, vaddr) (0)
+#define dma_mmap_from_dev_coherent(dev, vma, vaddr, order, ret) (0)
+
+static inline void *dma_alloc_from_global_coherent(ssize_t size,
+						   dma_addr_t *dma_handle)
+{
+	return NULL;
+}
+
+static inline int dma_release_from_global_coherent(int order, void *vaddr)
+{
+	return 0;
+}
+
+static inline int dma_mmap_from_global_coherent(struct vm_area_struct *vma,
+						void *cpu_addr, size_t size,
+						int *ret)
+{
+	return 0;
+}
 #endif /* CONFIG_HAVE_GENERIC_DMA_COHERENT */
 
 #ifdef CONFIG_HAS_DMA
@@ -481,7 +505,7 @@ static inline void *dma_alloc_attrs(struct device *dev, size_t size,
 
 	BUG_ON(!ops);
 
-	if (dma_alloc_from_coherent(dev, size, dma_handle, &cpu_addr))
+	if (dma_alloc_from_dev_coherent(dev, size, dma_handle, &cpu_addr))
 		return cpu_addr;
 
 	if (!arch_dma_alloc_attrs(&dev, &flag))
@@ -503,7 +527,7 @@ static inline void dma_free_attrs(struct device *dev, size_t size,
 	BUG_ON(!ops);
 	WARN_ON(irqs_disabled());
 
-	if (dma_release_from_coherent(dev, get_order(size), cpu_addr))
+	if (dma_release_from_dev_coherent(dev, get_order(size), cpu_addr))
 		return;
 
 	if (!ops->free || !cpu_addr)
diff --git a/include/linux/eventpoll.h b/include/linux/eventpoll.h
index 6daf6d4971f6..2f14ac73d01d 100644
--- a/include/linux/eventpoll.h
+++ b/include/linux/eventpoll.h
@@ -14,6 +14,7 @@
 #define _LINUX_EVENTPOLL_H
 
 #include <uapi/linux/eventpoll.h>
+#include <uapi/linux/kcmp.h>
 
 
 /* Forward declarations to avoid compiler errors */
@@ -22,6 +23,10 @@ struct file;
 
 #ifdef CONFIG_EPOLL
 
+#ifdef CONFIG_CHECKPOINT_RESTORE
+struct file *get_epoll_tfile_raw_ptr(struct file *file, int tfd, unsigned long toff);
+#endif
+
 /* Used to initialize the epoll bits inside the "struct file" */
 static inline void eventpoll_init_file(struct file *file)
 {
diff --git a/include/linux/flat.h b/include/linux/flat.h
index 2c1eb15c4ba4..7d542dfd0def 100644
--- a/include/linux/flat.h
+++ b/include/linux/flat.h
@@ -9,8 +9,8 @@
 #ifndef _LINUX_FLAT_H
 #define _LINUX_FLAT_H
 
-#include <asm/flat.h>
 #include <uapi/linux/flat.h>
+#include <asm/flat.h>
 
 /*
  * While it would be nice to keep this header clean,  users of older
diff --git a/include/linux/fs.h b/include/linux/fs.h
index 78e1dbbe4cfd..6e1fd5d21248 100644
--- a/include/linux/fs.h
+++ b/include/linux/fs.h
@@ -296,7 +296,7 @@ struct kiocb {
 	void			*private;
 	int			ki_flags;
 	enum rw_hint		ki_hint;
-};
+} __randomize_layout;
 
 static inline bool is_sync_kiocb(struct kiocb *kiocb)
 {
@@ -404,7 +404,7 @@ struct address_space {
 	struct list_head	private_list;	/* ditto */
 	void			*private_data;	/* ditto */
 	errseq_t		wb_err;
-} __attribute__((aligned(sizeof(long))));
+} __attribute__((aligned(sizeof(long)))) __randomize_layout;
 	/*
 	 * On most architectures that alignment is already the case; but
 	 * must be enforced here for CRIS, to let the least significant bit
@@ -447,7 +447,7 @@ struct block_device {
 	int			bd_fsfreeze_count;
 	/* Mutex for freeze */
 	struct mutex		bd_fsfreeze_mutex;
-};
+} __randomize_layout;
 
 /*
  * Radix-tree tags, for tagging dirty and writeback pages within the pagecache
@@ -666,7 +666,7 @@ struct inode {
 #endif
 
 	void			*i_private; /* fs or device private pointer */
-};
+} __randomize_layout;
 
 static inline unsigned int i_blocksize(const struct inode *node)
 {
@@ -883,7 +883,8 @@ struct file {
 #endif /* #ifdef CONFIG_EPOLL */
 	struct address_space	*f_mapping;
 	errseq_t		f_wb_err;
-} __attribute__((aligned(4)));	/* lest something weird decides that 2 is OK */
+} __randomize_layout
+  __attribute__((aligned(4)));	/* lest something weird decides that 2 is OK */
 
 struct file_handle {
 	__u32 handle_bytes;
@@ -1020,7 +1021,7 @@ struct file_lock {
 			int state;		/* state of grant or error if -ve */
 		} afs;
 	} fl_u;
-};
+} __randomize_layout;
 
 struct file_lock_context {
 	spinlock_t		flc_lock;
@@ -1364,11 +1365,6 @@ struct super_block {
 	 */
 	char *s_subtype;
 
-	/*
-	 * Saved mount options for lazy filesystems using
-	 * generic_show_options()
-	 */
-	char __rcu *s_options;
 	const struct dentry_operations *s_d_op; /* default d_op for dentries */
 
 	/*
@@ -1417,7 +1413,7 @@ struct super_block {
 
 	spinlock_t		s_inode_wblist_lock;
 	struct list_head	s_inodes_wb;	/* writeback inodes */
-};
+} __randomize_layout;
 
 /* Helper functions so that in most cases filesystems will
  * not need to deal directly with kuid_t and kgid_t and can
@@ -1703,7 +1699,7 @@ struct file_operations {
 			u64);
 	ssize_t (*dedupe_file_range)(struct file *, u64, u64, struct file *,
 			u64);
-};
+} __randomize_layout;
 
 struct inode_operations {
 	struct dentry * (*lookup) (struct inode *,struct dentry *, unsigned int);
@@ -1955,6 +1951,9 @@ static inline void init_sync_kiocb(struct kiocb *kiocb, struct file *filp)
  *			wb stat updates to grab mapping->tree_lock.  See
  *			inode_switch_wb_work_fn() for details.
  *
+ * I_OVL_INUSE		Used by overlayfs to get exclusive ownership on upper
+ *			and work dirs among overlayfs mounts.
+ *
  * Q: What is the difference between I_WILL_FREE and I_FREEING?
  */
 #define I_DIRTY_SYNC		(1 << 0)
@@ -1975,6 +1974,7 @@ static inline void init_sync_kiocb(struct kiocb *kiocb, struct file *filp)
 #define __I_DIRTY_TIME_EXPIRED	12
 #define I_DIRTY_TIME_EXPIRED	(1 << __I_DIRTY_TIME_EXPIRED)
 #define I_WB_SWITCH		(1 << 13)
+#define I_OVL_INUSE			(1 << 14)
 
 #define I_DIRTY (I_DIRTY_SYNC | I_DIRTY_DATASYNC | I_DIRTY_PAGES)
 #define I_DIRTY_ALL (I_DIRTY | I_DIRTY_TIME)
@@ -3042,7 +3042,7 @@ extern int generic_block_fiemap(struct inode *inode,
 				struct fiemap_extent_info *fieinfo, u64 start,
 				u64 len, get_block_t *get_block);
 
-extern void get_filesystem(struct file_system_type *fs);
+extern struct file_system_type *get_filesystem(struct file_system_type *fs);
 extern void put_filesystem(struct file_system_type *fs);
 extern struct file_system_type *get_fs_type(const char *name);
 extern struct super_block *get_super(struct block_device *);
@@ -3119,10 +3119,6 @@ extern void setattr_copy(struct inode *inode, const struct iattr *attr);
 
 extern int file_update_time(struct file *file);
 
-extern int generic_show_options(struct seq_file *m, struct dentry *root);
-extern void save_mount_options(struct super_block *sb, char *options);
-extern void replace_mount_options(struct super_block *sb, char *options);
-
 static inline bool io_is_direct(struct file *filp)
 {
 	return (filp->f_flags & O_DIRECT) || IS_DAX(filp->f_mapping->host);
diff --git a/include/linux/fs_struct.h b/include/linux/fs_struct.h
index 0efc3e62843a..7a026240cbb1 100644
--- a/include/linux/fs_struct.h
+++ b/include/linux/fs_struct.h
@@ -12,7 +12,7 @@ struct fs_struct {
 	int umask;
 	int in_exec;
 	struct path root, pwd;
-};
+} __randomize_layout;
 
 extern struct kmem_cache *fs_cachep;
 
diff --git a/include/linux/ftrace.h b/include/linux/ftrace.h
index 5857390ac35a..6383115e9d2c 100644
--- a/include/linux/ftrace.h
+++ b/include/linux/ftrace.h
@@ -145,8 +145,8 @@ enum {
 #ifdef CONFIG_DYNAMIC_FTRACE
 /* The hash used to know what functions callbacks trace */
 struct ftrace_ops_hash {
-	struct ftrace_hash		*notrace_hash;
-	struct ftrace_hash		*filter_hash;
+	struct ftrace_hash __rcu	*notrace_hash;
+	struct ftrace_hash __rcu	*filter_hash;
 	struct mutex			regex_lock;
 };
 
@@ -168,7 +168,7 @@ static inline void ftrace_free_init_mem(void) { }
  */
 struct ftrace_ops {
 	ftrace_func_t			func;
-	struct ftrace_ops		*next;
+	struct ftrace_ops __rcu		*next;
 	unsigned long			flags;
 	void				*private;
 	ftrace_func_t			saved_func;
diff --git a/include/linux/fwnode.h b/include/linux/fwnode.h
index 9ab375419189..50893a1646cf 100644
--- a/include/linux/fwnode.h
+++ b/include/linux/fwnode.h
@@ -99,6 +99,10 @@ struct fwnode_operations {
 	(fwnode ? (fwnode_has_op(fwnode, op) ?				\
 		   (fwnode)->ops->op(fwnode, ## __VA_ARGS__) : -ENXIO) : \
 	 -EINVAL)
+#define fwnode_call_bool_op(fwnode, op, ...)				\
+	(fwnode ? (fwnode_has_op(fwnode, op) ?				\
+		   (fwnode)->ops->op(fwnode, ## __VA_ARGS__) : false) : \
+	 false)
 #define fwnode_call_ptr_op(fwnode, op, ...)		\
 	(fwnode_has_op(fwnode, op) ?			\
 	 (fwnode)->ops->op(fwnode, ## __VA_ARGS__) : NULL)
diff --git a/include/linux/gfp.h b/include/linux/gfp.h
index 4c6656f1fee7..bcfb9f7c46f5 100644
--- a/include/linux/gfp.h
+++ b/include/linux/gfp.h
@@ -25,7 +25,7 @@ struct vm_area_struct;
 #define ___GFP_FS		0x80u
 #define ___GFP_COLD		0x100u
 #define ___GFP_NOWARN		0x200u
-#define ___GFP_REPEAT		0x400u
+#define ___GFP_RETRY_MAYFAIL	0x400u
 #define ___GFP_NOFAIL		0x800u
 #define ___GFP_NORETRY		0x1000u
 #define ___GFP_MEMALLOC		0x2000u
@@ -136,26 +136,56 @@ struct vm_area_struct;
  *
  * __GFP_RECLAIM is shorthand to allow/forbid both direct and kswapd reclaim.
  *
- * __GFP_REPEAT: Try hard to allocate the memory, but the allocation attempt
- *   _might_ fail.  This depends upon the particular VM implementation.
+ * The default allocator behavior depends on the request size. We have a concept
+ * of so called costly allocations (with order > PAGE_ALLOC_COSTLY_ORDER).
+ * !costly allocations are too essential to fail so they are implicitly
+ * non-failing by default (with some exceptions like OOM victims might fail so
+ * the caller still has to check for failures) while costly requests try to be
+ * not disruptive and back off even without invoking the OOM killer.
+ * The following three modifiers might be used to override some of these
+ * implicit rules
+ *
+ * __GFP_NORETRY: The VM implementation will try only very lightweight
+ *   memory direct reclaim to get some memory under memory pressure (thus
+ *   it can sleep). It will avoid disruptive actions like OOM killer. The
+ *   caller must handle the failure which is quite likely to happen under
+ *   heavy memory pressure. The flag is suitable when failure can easily be
+ *   handled at small cost, such as reduced throughput
+ *
+ * __GFP_RETRY_MAYFAIL: The VM implementation will retry memory reclaim
+ *   procedures that have previously failed if there is some indication
+ *   that progress has been made else where.  It can wait for other
+ *   tasks to attempt high level approaches to freeing memory such as
+ *   compaction (which removes fragmentation) and page-out.
+ *   There is still a definite limit to the number of retries, but it is
+ *   a larger limit than with __GFP_NORETRY.
+ *   Allocations with this flag may fail, but only when there is
+ *   genuinely little unused memory. While these allocations do not
+ *   directly trigger the OOM killer, their failure indicates that
+ *   the system is likely to need to use the OOM killer soon.  The
+ *   caller must handle failure, but can reasonably do so by failing
+ *   a higher-level request, or completing it only in a much less
+ *   efficient manner.
+ *   If the allocation does fail, and the caller is in a position to
+ *   free some non-essential memory, doing so could benefit the system
+ *   as a whole.
  *
  * __GFP_NOFAIL: The VM implementation _must_ retry infinitely: the caller
- *   cannot handle allocation failures. New users should be evaluated carefully
- *   (and the flag should be used only when there is no reasonable failure
- *   policy) but it is definitely preferable to use the flag rather than
- *   opencode endless loop around allocator.
- *
- * __GFP_NORETRY: The VM implementation must not retry indefinitely and will
- *   return NULL when direct reclaim and memory compaction have failed to allow
- *   the allocation to succeed.  The OOM killer is not called with the current
- *   implementation.
+ *   cannot handle allocation failures. The allocation could block
+ *   indefinitely but will never return with failure. Testing for
+ *   failure is pointless.
+ *   New users should be evaluated carefully (and the flag should be
+ *   used only when there is no reasonable failure policy) but it is
+ *   definitely preferable to use the flag rather than opencode endless
+ *   loop around allocator.
+ *   Using this flag for costly allocations is _highly_ discouraged.
  */
 #define __GFP_IO	((__force gfp_t)___GFP_IO)
 #define __GFP_FS	((__force gfp_t)___GFP_FS)
 #define __GFP_DIRECT_RECLAIM	((__force gfp_t)___GFP_DIRECT_RECLAIM) /* Caller can reclaim */
 #define __GFP_KSWAPD_RECLAIM	((__force gfp_t)___GFP_KSWAPD_RECLAIM) /* kswapd can wake */
 #define __GFP_RECLAIM ((__force gfp_t)(___GFP_DIRECT_RECLAIM|___GFP_KSWAPD_RECLAIM))
-#define __GFP_REPEAT	((__force gfp_t)___GFP_REPEAT)
+#define __GFP_RETRY_MAYFAIL	((__force gfp_t)___GFP_RETRY_MAYFAIL)
 #define __GFP_NOFAIL	((__force gfp_t)___GFP_NOFAIL)
 #define __GFP_NORETRY	((__force gfp_t)___GFP_NORETRY)
 
diff --git a/include/linux/hugetlb.h b/include/linux/hugetlb.h
index 8d9fe131a240..0ed8e41aaf11 100644
--- a/include/linux/hugetlb.h
+++ b/include/linux/hugetlb.h
@@ -268,6 +268,9 @@ struct hugetlbfs_sb_info {
 	spinlock_t	stat_lock;
 	struct hstate *hstate;
 	struct hugepage_subpool *spool;
+	kuid_t	uid;
+	kgid_t	gid;
+	umode_t mode;
 };
 
 static inline struct hugetlbfs_sb_info *HUGETLBFS_SB(struct super_block *sb)
diff --git a/include/linux/i2c.h b/include/linux/i2c.h
index 72d0ece70ed3..d501d3956f13 100644
--- a/include/linux/i2c.h
+++ b/include/linux/i2c.h
@@ -295,6 +295,8 @@ static inline int i2c_slave_event(struct i2c_client *client,
 {
 	return client->slave_cb(client, event, val);
 }
+#else
+static inline bool i2c_detect_slave_mode(struct device *dev) { return false; }
 #endif
 
 /**
@@ -687,7 +689,8 @@ i2c_unlock_adapter(struct i2c_adapter *adapter)
 #define I2C_CLASS_HWMON		(1<<0)	/* lm_sensors, ... */
 #define I2C_CLASS_DDC		(1<<3)	/* DDC bus on graphics adapters */
 #define I2C_CLASS_SPD		(1<<7)	/* Memory modules */
-#define I2C_CLASS_DEPRECATED	(1<<8)	/* Warn users that adapter will stop using classes */
+/* Warn users that the adapter doesn't support classes anymore */
+#define I2C_CLASS_DEPRECATED	(1<<8)
 
 /* Internal numbers to terminate lists */
 #define I2C_CLIENT_END		0xfffeU
diff --git a/include/linux/i2c/i2c-sh_mobile.h b/include/linux/i2c/i2c-sh_mobile.h
deleted file mode 100644
index 06e3089795fb..000000000000
--- a/include/linux/i2c/i2c-sh_mobile.h
+++ /dev/null
@@ -1,11 +0,0 @@
-#ifndef __I2C_SH_MOBILE_H__
-#define __I2C_SH_MOBILE_H__
-
-#include <linux/platform_device.h>
-
-struct i2c_sh_mobile_platform_data {
-	unsigned long bus_speed;
-	unsigned int clks_per_count;
-};
-
-#endif /* __I2C_SH_MOBILE_H__ */
diff --git a/include/linux/iio/common/st_sensors.h b/include/linux/iio/common/st_sensors.h
index 497f2b3a5a62..97f1b465d04f 100644
--- a/include/linux/iio/common/st_sensors.h
+++ b/include/linux/iio/common/st_sensors.h
@@ -105,6 +105,11 @@ struct st_sensor_fullscale {
 	struct st_sensor_fullscale_avl fs_avl[ST_SENSORS_FULLSCALE_AVL_MAX];
 };
 
+struct st_sensor_sim {
+	u8 addr;
+	u8 value;
+};
+
 /**
  * struct st_sensor_bdu - ST sensor device block data update
  * @addr: address of the register.
@@ -197,6 +202,7 @@ struct st_sensor_transfer_function {
  * @bdu: Block data update register.
  * @das: Data Alignment Selection register.
  * @drdy_irq: Data ready register of the sensor.
+ * @sim: SPI serial interface mode register of the sensor.
  * @multi_read_bit: Use or not particular bit for [I2C/SPI] multi-read.
  * @bootime: samples to discard when sensor passing from power-down to power-up.
  */
@@ -213,6 +219,7 @@ struct st_sensor_settings {
 	struct st_sensor_bdu bdu;
 	struct st_sensor_das das;
 	struct st_sensor_data_ready_irq drdy_irq;
+	struct st_sensor_sim sim;
 	bool multi_read_bit;
 	unsigned int bootime;
 };
diff --git a/include/linux/intel-svm.h b/include/linux/intel-svm.h
index 3c25794042f9..99bc5b3ae26e 100644
--- a/include/linux/intel-svm.h
+++ b/include/linux/intel-svm.h
@@ -102,6 +102,21 @@ extern int intel_svm_bind_mm(struct device *dev, int *pasid, int flags,
  */
 extern int intel_svm_unbind_mm(struct device *dev, int pasid);
 
+/**
+ * intel_svm_is_pasid_valid() - check if pasid is valid
+ * @dev:	Device for which PASID was allocated
+ * @pasid:	PASID value to be checked
+ *
+ * This function checks if the specified pasid is still valid. A
+ * valid pasid means the backing mm is still having a valid user.
+ * For kernel callers init_mm is always valid. for other mm, if mm->mm_users
+ * is non-zero, it is valid.
+ *
+ * returns -EINVAL if invalid pasid, 0 if pasid ref count is invalid
+ * 1 if pasid is valid.
+ */
+extern int intel_svm_is_pasid_valid(struct device *dev, int pasid);
+
 #else /* CONFIG_INTEL_IOMMU_SVM */
 
 static inline int intel_svm_bind_mm(struct device *dev, int *pasid,
@@ -114,6 +129,11 @@ static inline int intel_svm_unbind_mm(struct device *dev, int pasid)
 {
 	BUG();
 }
+
+static int intel_svm_is_pasid_valid(struct device *dev, int pasid)
+{
+	return -EINVAL;
+}
 #endif /* CONFIG_INTEL_IOMMU_SVM */
 
 #define intel_svm_available(dev) (!intel_svm_bind_mm((dev), NULL, 0, NULL))
diff --git a/include/linux/ipc.h b/include/linux/ipc.h
index 71fd92d81b26..fadd579d577d 100644
--- a/include/linux/ipc.h
+++ b/include/linux/ipc.h
@@ -20,6 +20,9 @@ struct kern_ipc_perm {
 	umode_t		mode;
 	unsigned long	seq;
 	void		*security;
-} ____cacheline_aligned_in_smp;
+
+	struct rcu_head rcu;
+	atomic_t refcount;
+} ____cacheline_aligned_in_smp __randomize_layout;
 
 #endif /* _LINUX_IPC_H */
diff --git a/include/linux/ipc_namespace.h b/include/linux/ipc_namespace.h
index 848e5796400e..65327ee0936b 100644
--- a/include/linux/ipc_namespace.h
+++ b/include/linux/ipc_namespace.h
@@ -61,7 +61,7 @@ struct ipc_namespace {
 	struct ucounts *ucounts;
 
 	struct ns_common ns;
-};
+} __randomize_layout;
 
 extern struct ipc_namespace init_ipc_ns;
 extern spinlock_t mq_lock;
diff --git a/include/linux/ipv6.h b/include/linux/ipv6.h
index e1b442996f81..474d6bbc158c 100644
--- a/include/linux/ipv6.h
+++ b/include/linux/ipv6.h
@@ -128,6 +128,7 @@ struct inet6_skb_parm {
 #define IP6SKB_FRAGMENTED      16
 #define IP6SKB_HOPBYHOP        32
 #define IP6SKB_L3SLAVE         64
+#define IP6SKB_JUMBOGRAM      128
 };
 
 #if defined(CONFIG_NET_L3_MASTER_DEV)
@@ -152,6 +153,11 @@ static inline int inet6_iif(const struct sk_buff *skb)
 	return l3_slave ? skb->skb_iif : IP6CB(skb)->iif;
 }
 
+static inline bool inet6_is_jumbogram(const struct sk_buff *skb)
+{
+	return !!(IP6CB(skb)->flags & IP6SKB_JUMBOGRAM);
+}
+
 /* can not be used in TCP layer after tcp_v6_fill_cb */
 static inline bool inet6_exact_dif_match(struct net *net, struct sk_buff *skb)
 {
diff --git a/include/linux/irq.h b/include/linux/irq.h
index 00db35b61e9e..d2d543794093 100644
--- a/include/linux/irq.h
+++ b/include/linux/irq.h
@@ -388,7 +388,12 @@ static inline irq_hw_number_t irqd_to_hwirq(struct irq_data *d)
  * @irq_mask_ack:	ack and mask an interrupt source
  * @irq_unmask:		unmask an interrupt source
  * @irq_eoi:		end of interrupt
- * @irq_set_affinity:	set the CPU affinity on SMP machines
+ * @irq_set_affinity:	Set the CPU affinity on SMP machines. If the force
+ *			argument is true, it tells the driver to
+ *			unconditionally apply the affinity setting. Sanity
+ *			checks against the supplied affinity mask are not
+ *			required. This is used for CPU hotplug where the
+ *			target CPU is not yet set in the cpu_online_mask.
  * @irq_retrigger:	resend an IRQ to the CPU
  * @irq_set_type:	set the flow type (IRQ_TYPE_LEVEL/etc.) of an IRQ
  * @irq_set_wake:	enable/disable power-management wake-on of an IRQ
diff --git a/include/linux/jhash.h b/include/linux/jhash.h
index 348c6f47e4cc..8037850f3104 100644
--- a/include/linux/jhash.h
+++ b/include/linux/jhash.h
@@ -85,19 +85,18 @@ static inline u32 jhash(const void *key, u32 length, u32 initval)
 		k += 12;
 	}
 	/* Last block: affect all 32 bits of (c) */
-	/* All the case statements fall through */
 	switch (length) {
-	case 12: c += (u32)k[11]<<24;
-	case 11: c += (u32)k[10]<<16;
-	case 10: c += (u32)k[9]<<8;
-	case 9:  c += k[8];
-	case 8:  b += (u32)k[7]<<24;
-	case 7:  b += (u32)k[6]<<16;
-	case 6:  b += (u32)k[5]<<8;
-	case 5:  b += k[4];
-	case 4:  a += (u32)k[3]<<24;
-	case 3:  a += (u32)k[2]<<16;
-	case 2:  a += (u32)k[1]<<8;
+	case 12: c += (u32)k[11]<<24;	/* fall through */
+	case 11: c += (u32)k[10]<<16;	/* fall through */
+	case 10: c += (u32)k[9]<<8;	/* fall through */
+	case 9:  c += k[8];		/* fall through */
+	case 8:  b += (u32)k[7]<<24;	/* fall through */
+	case 7:  b += (u32)k[6]<<16;	/* fall through */
+	case 6:  b += (u32)k[5]<<8;	/* fall through */
+	case 5:  b += k[4];		/* fall through */
+	case 4:  a += (u32)k[3]<<24;	/* fall through */
+	case 3:  a += (u32)k[2]<<16;	/* fall through */
+	case 2:  a += (u32)k[1]<<8;	/* fall through */
 	case 1:  a += k[0];
 		 __jhash_final(a, b, c);
 	case 0: /* Nothing left to add */
@@ -131,10 +130,10 @@ static inline u32 jhash2(const u32 *k, u32 length, u32 initval)
 		k += 3;
 	}
 
-	/* Handle the last 3 u32's: all the case statements fall through */
+	/* Handle the last 3 u32's */
 	switch (length) {
-	case 3: c += k[2];
-	case 2: b += k[1];
+	case 3: c += k[2];	/* fall through */
+	case 2: b += k[1];	/* fall through */
 	case 1: a += k[0];
 		__jhash_final(a, b, c);
 	case 0:	/* Nothing left to add */
diff --git a/include/linux/kernel.h b/include/linux/kernel.h
index 1c91f26e2996..bd6d96cf80b1 100644
--- a/include/linux/kernel.h
+++ b/include/linux/kernel.h
@@ -11,6 +11,7 @@
 #include <linux/log2.h>
 #include <linux/typecheck.h>
 #include <linux/printk.h>
+#include <linux/build_bug.h>
 #include <asm/byteorder.h>
 #include <uapi/linux/kernel.h>
 
@@ -854,9 +855,12 @@ static inline void ftrace_dump(enum ftrace_dump_mode oops_dump_mode) { }
  * @member:	the name of the member within the struct.
  *
  */
-#define container_of(ptr, type, member) ({			\
-	const typeof( ((type *)0)->member ) *__mptr = (ptr);	\
-	(type *)( (char *)__mptr - offsetof(type,member) );})
+#define container_of(ptr, type, member) ({				\
+	void *__mptr = (void *)(ptr);					\
+	BUILD_BUG_ON_MSG(!__same_type(*(ptr), ((type *)0)->member) &&	\
+			 !__same_type(*(ptr), void),			\
+			 "pointer type mismatch in container_of()");	\
+	((type *)(__mptr - offsetof(type, member))); })
 
 /* Rebuild everything on CONFIG_FTRACE_MCOUNT_RECORD */
 #ifdef CONFIG_FTRACE_MCOUNT_RECORD
diff --git a/include/linux/kexec.h b/include/linux/kexec.h
index 65888418fb69..dd056fab9e35 100644
--- a/include/linux/kexec.h
+++ b/include/linux/kexec.h
@@ -172,6 +172,7 @@ struct kimage {
 	unsigned long start;
 	struct page *control_code_page;
 	struct page *swap_page;
+	void *vmcoreinfo_data_copy; /* locates in the crash memory */
 
 	unsigned long nr_segments;
 	struct kexec_segment segment[KEXEC_SEGMENT_MAX];
@@ -241,6 +242,7 @@ extern void crash_kexec(struct pt_regs *);
 int kexec_should_crash(struct task_struct *);
 int kexec_crash_loaded(void);
 void crash_save_cpu(struct pt_regs *regs, int cpu);
+extern int kimage_crash_copy_vmcoreinfo(struct kimage *image);
 
 extern struct kimage *kexec_image;
 extern struct kimage *kexec_crash_image;
diff --git a/include/linux/key-type.h b/include/linux/key-type.h
index 8496cf64575c..9520fc3c3b9a 100644
--- a/include/linux/key-type.h
+++ b/include/linux/key-type.h
@@ -45,7 +45,7 @@ struct key_preparsed_payload {
 	size_t		datalen;	/* Raw datalen */
 	size_t		quotalen;	/* Quota length for proposed payload */
 	time_t		expiry;		/* Expiry time of key */
-};
+} __randomize_layout;
 
 typedef int (*request_key_actor_t)(struct key_construction *key,
 				   const char *op, void *aux);
@@ -158,7 +158,7 @@ struct key_type {
 	/* internal fields */
 	struct list_head	link;		/* link in types list */
 	struct lock_class_key	lock_class;	/* key->sem lock class */
-};
+} __randomize_layout;
 
 extern struct key_type key_type_keyring;
 
diff --git a/include/linux/kmod.h b/include/linux/kmod.h
index c4e441e00db5..655082c88fd9 100644
--- a/include/linux/kmod.h
+++ b/include/linux/kmod.h
@@ -64,7 +64,7 @@ struct subprocess_info {
 	int (*init)(struct subprocess_info *info, struct cred *new);
 	void (*cleanup)(struct subprocess_info *info);
 	void *data;
-};
+} __randomize_layout;
 
 extern int
 call_usermodehelper(const char *path, char **argv, char **envp, int wait);
diff --git a/include/linux/kobject.h b/include/linux/kobject.h
index eeab34b0f589..4d800c79475a 100644
--- a/include/linux/kobject.h
+++ b/include/linux/kobject.h
@@ -172,7 +172,7 @@ struct kset {
 	spinlock_t list_lock;
 	struct kobject kobj;
 	const struct kset_uevent_ops *uevent_ops;
-};
+} __randomize_layout;
 
 extern void kset_init(struct kset *kset);
 extern int __must_check kset_register(struct kset *kset);
diff --git a/include/linux/kthread.h b/include/linux/kthread.h
index 4fec8b775895..82e197eeac91 100644
--- a/include/linux/kthread.h
+++ b/include/linux/kthread.h
@@ -15,7 +15,7 @@ struct task_struct *kthread_create_on_node(int (*threadfn)(void *data),
  * @threadfn: the function to run in the thread
  * @data: data pointer for @threadfn()
  * @namefmt: printf-style format string for the thread name
- * @...: arguments for @namefmt.
+ * @arg...: arguments for @namefmt.
  *
  * This macro will create a kthread on the current node, leaving it in
  * the stopped state.  This is just a helper for kthread_create_on_node();
diff --git a/include/linux/kvm_host.h b/include/linux/kvm_host.h
index 0b50e7b35ed4..21a6fd6c44af 100644
--- a/include/linux/kvm_host.h
+++ b/include/linux/kvm_host.h
@@ -234,7 +234,7 @@ struct kvm_vcpu {
 
 	int guest_fpu_loaded, guest_xcr0_loaded;
 	struct swait_queue_head wq;
-	struct pid *pid;
+	struct pid __rcu *pid;
 	int sigset_active;
 	sigset_t sigset;
 	struct kvm_vcpu_stat stat;
@@ -390,7 +390,7 @@ struct kvm {
 	spinlock_t mmu_lock;
 	struct mutex slots_lock;
 	struct mm_struct *mm; /* userspace tied to this vm */
-	struct kvm_memslots *memslots[KVM_ADDRESS_SPACE_NUM];
+	struct kvm_memslots __rcu *memslots[KVM_ADDRESS_SPACE_NUM];
 	struct kvm_vcpu *vcpus[KVM_MAX_VCPUS];
 
 	/*
@@ -404,7 +404,7 @@ struct kvm {
 	int last_boosted_vcpu;
 	struct list_head vm_list;
 	struct mutex lock;
-	struct kvm_io_bus *buses[KVM_NR_BUSES];
+	struct kvm_io_bus __rcu *buses[KVM_NR_BUSES];
 #ifdef CONFIG_HAVE_KVM_EVENTFD
 	struct {
 		spinlock_t        lock;
@@ -445,6 +445,7 @@ struct kvm {
 	struct kvm_stat_data **debugfs_stat_data;
 	struct srcu_struct srcu;
 	struct srcu_struct irq_srcu;
+	pid_t userspace_pid;
 };
 
 #define kvm_err(fmt, ...) \
@@ -473,6 +474,13 @@ struct kvm {
 #define vcpu_err(vcpu, fmt, ...)					\
 	kvm_err("vcpu%i " fmt, (vcpu)->vcpu_id, ## __VA_ARGS__)
 
+static inline struct kvm_io_bus *kvm_get_bus(struct kvm *kvm, enum kvm_bus idx)
+{
+	return srcu_dereference_check(kvm->buses[idx], &kvm->srcu,
+				      lockdep_is_held(&kvm->slots_lock) ||
+				      !refcount_read(&kvm->users_count));
+}
+
 static inline struct kvm_vcpu *kvm_get_vcpu(struct kvm *kvm, int i)
 {
 	/* Pairs with smp_wmb() in kvm_vm_ioctl_create_vcpu, in case
@@ -562,9 +570,9 @@ void kvm_put_kvm(struct kvm *kvm);
 
 static inline struct kvm_memslots *__kvm_memslots(struct kvm *kvm, int as_id)
 {
-	return rcu_dereference_check(kvm->memslots[as_id],
-			srcu_read_lock_held(&kvm->srcu)
-			|| lockdep_is_held(&kvm->slots_lock));
+	return srcu_dereference_check(kvm->memslots[as_id], &kvm->srcu,
+			lockdep_is_held(&kvm->slots_lock) ||
+			!refcount_read(&kvm->users_count));
 }
 
 static inline struct kvm_memslots *kvm_memslots(struct kvm *kvm)
diff --git a/include/linux/libata.h b/include/linux/libata.h
index 55de3da58b1c..931c32f1f18d 100644
--- a/include/linux/libata.h
+++ b/include/linux/libata.h
@@ -435,7 +435,7 @@ enum {
 	ATA_HORKAGE_NOLPM	= (1 << 20),	/* don't use LPM */
 	ATA_HORKAGE_WD_BROKEN_LPM = (1 << 21),	/* some WDs have broken LPM */
 	ATA_HORKAGE_ZERO_AFTER_TRIM = (1 << 22),/* guarantees zero after trim */
-	ATA_HORKAGE_NO_NCQ_LOG	= (1 << 23),	/* don't use NCQ for log read */
+	ATA_HORKAGE_NO_DMA_LOG	= (1 << 23),	/* don't use DMA for log read */
 	ATA_HORKAGE_NOTRIM	= (1 << 24),	/* don't use TRIM */
 	ATA_HORKAGE_MAX_SEC_1024 = (1 << 25),	/* Limit max sects to 1024 */
 
diff --git a/include/linux/llist.h b/include/linux/llist.h
index d11738110a7a..1957635e6d5f 100644
--- a/include/linux/llist.h
+++ b/include/linux/llist.h
@@ -93,6 +93,23 @@ static inline void init_llist_head(struct llist_head *list)
 	container_of(ptr, type, member)
 
 /**
+ * member_address_is_nonnull - check whether the member address is not NULL
+ * @ptr:	the object pointer (struct type * that contains the llist_node)
+ * @member:	the name of the llist_node within the struct.
+ *
+ * This macro is conceptually the same as
+ *	&ptr->member != NULL
+ * but it works around the fact that compilers can decide that taking a member
+ * address is never a NULL pointer.
+ *
+ * Real objects that start at a high address and have a member at NULL are
+ * unlikely to exist, but such pointers may be returned e.g. by the
+ * container_of() macro.
+ */
+#define member_address_is_nonnull(ptr, member)	\
+	((uintptr_t)(ptr) + offsetof(typeof(*(ptr)), member) != 0)
+
+/**
  * llist_for_each - iterate over some deleted entries of a lock-less list
  * @pos:	the &struct llist_node to use as a loop cursor
  * @node:	the first entry of deleted list entries
@@ -145,7 +162,7 @@ static inline void init_llist_head(struct llist_head *list)
  */
 #define llist_for_each_entry(pos, node, member)				\
 	for ((pos) = llist_entry((node), typeof(*(pos)), member);	\
-	     &(pos)->member != NULL;					\
+	     member_address_is_nonnull(pos, member);			\
 	     (pos) = llist_entry((pos)->member.next, typeof(*(pos)), member))
 
 /**
@@ -167,7 +184,7 @@ static inline void init_llist_head(struct llist_head *list)
  */
 #define llist_for_each_entry_safe(pos, n, node, member)			       \
 	for (pos = llist_entry((node), typeof(*pos), member);		       \
-	     &pos->member != NULL &&					       \
+	     member_address_is_nonnull(pos, member) &&			       \
 	        (n = llist_entry(pos->member.next, typeof(*n), member), true); \
 	     pos = n)
 
diff --git a/include/linux/lockd/lockd.h b/include/linux/lockd/lockd.h
index 41f7b6a04d69..3eca67728366 100644
--- a/include/linux/lockd/lockd.h
+++ b/include/linux/lockd/lockd.h
@@ -192,9 +192,9 @@ struct nlm_block {
  * Global variables
  */
 extern const struct rpc_program	nlm_program;
-extern struct svc_procedure	nlmsvc_procedures[];
+extern const struct svc_procedure nlmsvc_procedures[];
 #ifdef CONFIG_LOCKD_V4
-extern struct svc_procedure	nlmsvc_procedures4[];
+extern const struct svc_procedure nlmsvc_procedures4[];
 #endif
 extern int			nlmsvc_grace_period;
 extern unsigned long		nlmsvc_timeout;
diff --git a/include/linux/lockd/xdr.h b/include/linux/lockd/xdr.h
index d39ed1cc5fbf..7acbecc21a40 100644
--- a/include/linux/lockd/xdr.h
+++ b/include/linux/lockd/xdr.h
@@ -95,19 +95,19 @@ struct nlm_reboot {
  */
 #define NLMSVC_XDRSIZE		sizeof(struct nlm_args)
 
-int	nlmsvc_decode_testargs(struct svc_rqst *, __be32 *, struct nlm_args *);
-int	nlmsvc_encode_testres(struct svc_rqst *, __be32 *, struct nlm_res *);
-int	nlmsvc_decode_lockargs(struct svc_rqst *, __be32 *, struct nlm_args *);
-int	nlmsvc_decode_cancargs(struct svc_rqst *, __be32 *, struct nlm_args *);
-int	nlmsvc_decode_unlockargs(struct svc_rqst *, __be32 *, struct nlm_args *);
-int	nlmsvc_encode_res(struct svc_rqst *, __be32 *, struct nlm_res *);
-int	nlmsvc_decode_res(struct svc_rqst *, __be32 *, struct nlm_res *);
-int	nlmsvc_encode_void(struct svc_rqst *, __be32 *, void *);
-int	nlmsvc_decode_void(struct svc_rqst *, __be32 *, void *);
-int	nlmsvc_decode_shareargs(struct svc_rqst *, __be32 *, struct nlm_args *);
-int	nlmsvc_encode_shareres(struct svc_rqst *, __be32 *, struct nlm_res *);
-int	nlmsvc_decode_notify(struct svc_rqst *, __be32 *, struct nlm_args *);
-int	nlmsvc_decode_reboot(struct svc_rqst *, __be32 *, struct nlm_reboot *);
+int	nlmsvc_decode_testargs(struct svc_rqst *, __be32 *);
+int	nlmsvc_encode_testres(struct svc_rqst *, __be32 *);
+int	nlmsvc_decode_lockargs(struct svc_rqst *, __be32 *);
+int	nlmsvc_decode_cancargs(struct svc_rqst *, __be32 *);
+int	nlmsvc_decode_unlockargs(struct svc_rqst *, __be32 *);
+int	nlmsvc_encode_res(struct svc_rqst *, __be32 *);
+int	nlmsvc_decode_res(struct svc_rqst *, __be32 *);
+int	nlmsvc_encode_void(struct svc_rqst *, __be32 *);
+int	nlmsvc_decode_void(struct svc_rqst *, __be32 *);
+int	nlmsvc_decode_shareargs(struct svc_rqst *, __be32 *);
+int	nlmsvc_encode_shareres(struct svc_rqst *, __be32 *);
+int	nlmsvc_decode_notify(struct svc_rqst *, __be32 *);
+int	nlmsvc_decode_reboot(struct svc_rqst *, __be32 *);
 /*
 int	nlmclt_encode_testargs(struct rpc_rqst *, u32 *, struct nlm_args *);
 int	nlmclt_encode_lockargs(struct rpc_rqst *, u32 *, struct nlm_args *);
diff --git a/include/linux/lockd/xdr4.h b/include/linux/lockd/xdr4.h
index e58c88b52ce1..bf1645609225 100644
--- a/include/linux/lockd/xdr4.h
+++ b/include/linux/lockd/xdr4.h
@@ -23,19 +23,19 @@
 
 
 
-int	nlm4svc_decode_testargs(struct svc_rqst *, __be32 *, struct nlm_args *);
-int	nlm4svc_encode_testres(struct svc_rqst *, __be32 *, struct nlm_res *);
-int	nlm4svc_decode_lockargs(struct svc_rqst *, __be32 *, struct nlm_args *);
-int	nlm4svc_decode_cancargs(struct svc_rqst *, __be32 *, struct nlm_args *);
-int	nlm4svc_decode_unlockargs(struct svc_rqst *, __be32 *, struct nlm_args *);
-int	nlm4svc_encode_res(struct svc_rqst *, __be32 *, struct nlm_res *);
-int	nlm4svc_decode_res(struct svc_rqst *, __be32 *, struct nlm_res *);
-int	nlm4svc_encode_void(struct svc_rqst *, __be32 *, void *);
-int	nlm4svc_decode_void(struct svc_rqst *, __be32 *, void *);
-int	nlm4svc_decode_shareargs(struct svc_rqst *, __be32 *, struct nlm_args *);
-int	nlm4svc_encode_shareres(struct svc_rqst *, __be32 *, struct nlm_res *);
-int	nlm4svc_decode_notify(struct svc_rqst *, __be32 *, struct nlm_args *);
-int	nlm4svc_decode_reboot(struct svc_rqst *, __be32 *, struct nlm_reboot *);
+int	nlm4svc_decode_testargs(struct svc_rqst *, __be32 *);
+int	nlm4svc_encode_testres(struct svc_rqst *, __be32 *);
+int	nlm4svc_decode_lockargs(struct svc_rqst *, __be32 *);
+int	nlm4svc_decode_cancargs(struct svc_rqst *, __be32 *);
+int	nlm4svc_decode_unlockargs(struct svc_rqst *, __be32 *);
+int	nlm4svc_encode_res(struct svc_rqst *, __be32 *);
+int	nlm4svc_decode_res(struct svc_rqst *, __be32 *);
+int	nlm4svc_encode_void(struct svc_rqst *, __be32 *);
+int	nlm4svc_decode_void(struct svc_rqst *, __be32 *);
+int	nlm4svc_decode_shareargs(struct svc_rqst *, __be32 *);
+int	nlm4svc_encode_shareres(struct svc_rqst *, __be32 *);
+int	nlm4svc_decode_notify(struct svc_rqst *, __be32 *);
+int	nlm4svc_decode_reboot(struct svc_rqst *, __be32 *);
 /*
 int	nlmclt_encode_testargs(struct rpc_rqst *, u32 *, struct nlm_args *);
 int	nlmclt_encode_lockargs(struct rpc_rqst *, u32 *, struct nlm_args *);
diff --git a/include/linux/lsm_hooks.h b/include/linux/lsm_hooks.h
index 7a86925ba8f3..3a90febadbe2 100644
--- a/include/linux/lsm_hooks.h
+++ b/include/linux/lsm_hooks.h
@@ -1912,7 +1912,7 @@ struct security_hook_heads {
 	struct list_head audit_rule_match;
 	struct list_head audit_rule_free;
 #endif /* CONFIG_AUDIT */
-};
+} __randomize_layout;
 
 /*
  * Security module hook list structure.
@@ -1923,7 +1923,7 @@ struct security_hook_list {
 	struct list_head		*head;
 	union security_list_options	hook;
 	char				*lsm;
-};
+} __randomize_layout;
 
 /*
  * Initializing a security_hook_list structure takes
diff --git a/include/linux/memblock.h b/include/linux/memblock.h
index 77d427974f57..bae11c7e7bf3 100644
--- a/include/linux/memblock.h
+++ b/include/linux/memblock.h
@@ -61,6 +61,7 @@ extern int memblock_debug;
 #ifdef CONFIG_ARCH_DISCARD_MEMBLOCK
 #define __init_memblock __meminit
 #define __initdata_memblock __meminitdata
+void memblock_discard(void);
 #else
 #define __init_memblock
 #define __initdata_memblock
@@ -74,8 +75,6 @@ phys_addr_t memblock_find_in_range_node(phys_addr_t size, phys_addr_t align,
 					int nid, ulong flags);
 phys_addr_t memblock_find_in_range(phys_addr_t start, phys_addr_t end,
 				   phys_addr_t size, phys_addr_t align);
-phys_addr_t get_allocated_memblock_reserved_regions_info(phys_addr_t *addr);
-phys_addr_t get_allocated_memblock_memory_regions_info(phys_addr_t *addr);
 void memblock_allow_resize(void);
 int memblock_add_node(phys_addr_t base, phys_addr_t size, int nid);
 int memblock_add(phys_addr_t base, phys_addr_t size);
@@ -110,6 +109,9 @@ void __next_mem_range_rev(u64 *idx, int nid, ulong flags,
 void __next_reserved_mem_region(u64 *idx, phys_addr_t *out_start,
 				phys_addr_t *out_end);
 
+void __memblock_free_early(phys_addr_t base, phys_addr_t size);
+void __memblock_free_late(phys_addr_t base, phys_addr_t size);
+
 /**
  * for_each_mem_range - iterate through memblock areas from type_a and not
  * included in type_b. Or just type_a if type_b is NULL.
diff --git a/include/linux/memcontrol.h b/include/linux/memcontrol.h
index 3914e3dd6168..9b15a4bcfa77 100644
--- a/include/linux/memcontrol.h
+++ b/include/linux/memcontrol.h
@@ -484,7 +484,8 @@ bool mem_cgroup_oom_synchronize(bool wait);
 extern int do_swap_account;
 #endif
 
-void lock_page_memcg(struct page *page);
+struct mem_cgroup *lock_page_memcg(struct page *page);
+void __unlock_page_memcg(struct mem_cgroup *memcg);
 void unlock_page_memcg(struct page *page);
 
 static inline unsigned long memcg_page_state(struct mem_cgroup *memcg,
@@ -809,7 +810,12 @@ mem_cgroup_print_oom_info(struct mem_cgroup *memcg, struct task_struct *p)
 {
 }
 
-static inline void lock_page_memcg(struct page *page)
+static inline struct mem_cgroup *lock_page_memcg(struct page *page)
+{
+	return NULL;
+}
+
+static inline void __unlock_page_memcg(struct mem_cgroup *memcg)
 {
 }
 
diff --git a/include/linux/migrate.h b/include/linux/migrate.h
index 4634da521238..3e0d405dc842 100644
--- a/include/linux/migrate.h
+++ b/include/linux/migrate.h
@@ -34,7 +34,7 @@ extern char *migrate_reason_names[MR_TYPES];
 static inline struct page *new_page_nodemask(struct page *page,
 				int preferred_nid, nodemask_t *nodemask)
 {
-	gfp_t gfp_mask = GFP_USER | __GFP_MOVABLE;
+	gfp_t gfp_mask = GFP_USER | __GFP_MOVABLE | __GFP_RETRY_MAYFAIL;
 
 	if (PageHuge(page))
 		return alloc_huge_page_nodemask(page_hstate(compound_head(page)),
diff --git a/include/linux/mlx4/device.h b/include/linux/mlx4/device.h
index d5bed0875d30..b54517c05e9a 100644
--- a/include/linux/mlx4/device.h
+++ b/include/linux/mlx4/device.h
@@ -620,6 +620,7 @@ struct mlx4_caps {
 	u32			dmfs_high_rate_qpn_base;
 	u32			dmfs_high_rate_qpn_range;
 	u32			vf_caps;
+	bool			wol_port[MLX4_MAX_PORTS + 1];
 	struct mlx4_rate_limit_caps rl_caps;
 };
 
@@ -1068,7 +1069,7 @@ static inline int mlx4_is_eth(struct mlx4_dev *dev, int port)
 }
 
 int mlx4_buf_alloc(struct mlx4_dev *dev, int size, int max_direct,
-		   struct mlx4_buf *buf, gfp_t gfp);
+		   struct mlx4_buf *buf);
 void mlx4_buf_free(struct mlx4_dev *dev, int size, struct mlx4_buf *buf);
 static inline void *mlx4_buf_offset(struct mlx4_buf *buf, int offset)
 {
@@ -1105,10 +1106,9 @@ int mlx4_mw_enable(struct mlx4_dev *dev, struct mlx4_mw *mw);
 int mlx4_write_mtt(struct mlx4_dev *dev, struct mlx4_mtt *mtt,
 		   int start_index, int npages, u64 *page_list);
 int mlx4_buf_write_mtt(struct mlx4_dev *dev, struct mlx4_mtt *mtt,
-		       struct mlx4_buf *buf, gfp_t gfp);
+		       struct mlx4_buf *buf);
 
-int mlx4_db_alloc(struct mlx4_dev *dev, struct mlx4_db *db, int order,
-		  gfp_t gfp);
+int mlx4_db_alloc(struct mlx4_dev *dev, struct mlx4_db *db, int order);
 void mlx4_db_free(struct mlx4_dev *dev, struct mlx4_db *db);
 
 int mlx4_alloc_hwq_res(struct mlx4_dev *dev, struct mlx4_hwq_resources *wqres,
@@ -1124,8 +1124,7 @@ int mlx4_qp_reserve_range(struct mlx4_dev *dev, int cnt, int align,
 			  int *base, u8 flags);
 void mlx4_qp_release_range(struct mlx4_dev *dev, int base_qpn, int cnt);
 
-int mlx4_qp_alloc(struct mlx4_dev *dev, int qpn, struct mlx4_qp *qp,
-		  gfp_t gfp);
+int mlx4_qp_alloc(struct mlx4_dev *dev, int qpn, struct mlx4_qp *qp);
 void mlx4_qp_free(struct mlx4_dev *dev, struct mlx4_qp *qp);
 
 int mlx4_srq_alloc(struct mlx4_dev *dev, u32 pdn, u32 cqn, u16 xrcdn,
diff --git a/include/linux/mlx5/mlx5_ifc.h b/include/linux/mlx5/mlx5_ifc.h
index 87869c04849a..3030121b4746 100644
--- a/include/linux/mlx5/mlx5_ifc.h
+++ b/include/linux/mlx5/mlx5_ifc.h
@@ -7749,8 +7749,10 @@ struct mlx5_ifc_pcam_reg_bits {
 };
 
 struct mlx5_ifc_mcam_enhanced_features_bits {
-	u8         reserved_at_0[0x7f];
+	u8         reserved_at_0[0x7d];
 
+	u8         mtpps_enh_out_per_adj[0x1];
+	u8         mtpps_fs[0x1];
 	u8         pcie_performance_group[0x1];
 };
 
@@ -8159,7 +8161,8 @@ struct mlx5_ifc_mtpps_reg_bits {
 	u8         reserved_at_78[0x4];
 	u8         cap_pin_4_mode[0x4];
 
-	u8         reserved_at_80[0x80];
+	u8         field_select[0x20];
+	u8         reserved_at_a0[0x60];
 
 	u8         enable[0x1];
 	u8         reserved_at_101[0xb];
@@ -8174,8 +8177,9 @@ struct mlx5_ifc_mtpps_reg_bits {
 
 	u8         out_pulse_duration[0x10];
 	u8         out_periodic_adjustment[0x10];
+	u8         enhanced_out_periodic_adjustment[0x20];
 
-	u8         reserved_at_1a0[0x60];
+	u8         reserved_at_1c0[0x20];
 };
 
 struct mlx5_ifc_mtppse_reg_bits {
diff --git a/include/linux/mlx5/qp.h b/include/linux/mlx5/qp.h
index 6f41270d80c0..f378dc0e7eaf 100644
--- a/include/linux/mlx5/qp.h
+++ b/include/linux/mlx5/qp.h
@@ -212,7 +212,6 @@ struct mlx5_wqe_ctrl_seg {
 #define MLX5_WQE_CTRL_OPCODE_MASK 0xff
 #define MLX5_WQE_CTRL_WQE_INDEX_MASK 0x00ffff00
 #define MLX5_WQE_CTRL_WQE_INDEX_SHIFT 8
-#define MLX5_WQE_AV_EXT 0x80000000
 
 enum {
 	MLX5_ETH_WQE_L3_INNER_CSUM      = 1 << 4,
diff --git a/include/linux/mm_types.h b/include/linux/mm_types.h
index 45cdb27791a3..3cadee0a3508 100644
--- a/include/linux/mm_types.h
+++ b/include/linux/mm_types.h
@@ -342,7 +342,7 @@ struct vm_area_struct {
 	struct mempolicy *vm_policy;	/* NUMA policy for the VMA */
 #endif
 	struct vm_userfaultfd_ctx vm_userfaultfd_ctx;
-};
+} __randomize_layout;
 
 struct core_thread {
 	struct task_struct *task;
@@ -487,20 +487,22 @@ struct mm_struct {
 	/* numa_scan_seq prevents two threads setting pte_numa */
 	int numa_scan_seq;
 #endif
-#if defined(CONFIG_NUMA_BALANCING) || defined(CONFIG_COMPACTION)
 	/*
 	 * An operation with batched TLB flushing is going on. Anything that
 	 * can move process memory needs to flush the TLB when moving a
 	 * PROT_NONE or PROT_NUMA mapped page.
 	 */
-	bool tlb_flush_pending;
+	atomic_t tlb_flush_pending;
+#ifdef CONFIG_ARCH_WANT_BATCHED_UNMAP_TLB_FLUSH
+	/* See flush_tlb_batched_pending() */
+	bool tlb_flush_batched;
 #endif
 	struct uprobes_state uprobes_state;
 #ifdef CONFIG_HUGETLB_PAGE
 	atomic_long_t hugetlb_usage;
 #endif
 	struct work_struct async_put_work;
-};
+} __randomize_layout;
 
 extern struct mm_struct init_mm;
 
@@ -518,46 +520,60 @@ static inline cpumask_t *mm_cpumask(struct mm_struct *mm)
 	return mm->cpu_vm_mask_var;
 }
 
-#if defined(CONFIG_NUMA_BALANCING) || defined(CONFIG_COMPACTION)
+struct mmu_gather;
+extern void tlb_gather_mmu(struct mmu_gather *tlb, struct mm_struct *mm,
+				unsigned long start, unsigned long end);
+extern void tlb_finish_mmu(struct mmu_gather *tlb,
+				unsigned long start, unsigned long end);
+
 /*
  * Memory barriers to keep this state in sync are graciously provided by
  * the page table locks, outside of which no page table modifications happen.
- * The barriers below prevent the compiler from re-ordering the instructions
- * around the memory barriers that are already present in the code.
+ * The barriers are used to ensure the order between tlb_flush_pending updates,
+ * which happen while the lock is not taken, and the PTE updates, which happen
+ * while the lock is taken, are serialized.
  */
 static inline bool mm_tlb_flush_pending(struct mm_struct *mm)
 {
-	barrier();
-	return mm->tlb_flush_pending;
+	return atomic_read(&mm->tlb_flush_pending) > 0;
+}
+
+/*
+ * Returns true if there are two above TLB batching threads in parallel.
+ */
+static inline bool mm_tlb_flush_nested(struct mm_struct *mm)
+{
+	return atomic_read(&mm->tlb_flush_pending) > 1;
+}
+
+static inline void init_tlb_flush_pending(struct mm_struct *mm)
+{
+	atomic_set(&mm->tlb_flush_pending, 0);
 }
-static inline void set_tlb_flush_pending(struct mm_struct *mm)
+
+static inline void inc_tlb_flush_pending(struct mm_struct *mm)
 {
-	mm->tlb_flush_pending = true;
+	atomic_inc(&mm->tlb_flush_pending);
 
 	/*
-	 * Guarantee that the tlb_flush_pending store does not leak into the
+	 * Guarantee that the tlb_flush_pending increase does not leak into the
 	 * critical section updating the page tables
 	 */
 	smp_mb__before_spinlock();
 }
+
 /* Clearing is done after a TLB flush, which also provides a barrier. */
-static inline void clear_tlb_flush_pending(struct mm_struct *mm)
-{
-	barrier();
-	mm->tlb_flush_pending = false;
-}
-#else
-static inline bool mm_tlb_flush_pending(struct mm_struct *mm)
-{
-	return false;
-}
-static inline void set_tlb_flush_pending(struct mm_struct *mm)
-{
-}
-static inline void clear_tlb_flush_pending(struct mm_struct *mm)
+static inline void dec_tlb_flush_pending(struct mm_struct *mm)
 {
+	/*
+	 * Guarantee that the tlb_flush_pending does not not leak into the
+	 * critical section, since we must order the PTE change and changes to
+	 * the pending TLB flush indication. We could have relied on TLB flush
+	 * as a memory barrier, but this behavior is not clearly documented.
+	 */
+	smp_mb__before_atomic();
+	atomic_dec(&mm->tlb_flush_pending);
 }
-#endif
 
 struct vm_fault;
 
diff --git a/include/linux/module.h b/include/linux/module.h
index 8eb9a1e693e5..e7bdd549e527 100644
--- a/include/linux/module.h
+++ b/include/linux/module.h
@@ -45,7 +45,7 @@ struct module_kobject {
 	struct kobject *drivers_dir;
 	struct module_param_attrs *mp;
 	struct completion *kobj_completion;
-};
+} __randomize_layout;
 
 struct module_attribute {
 	struct attribute attr;
@@ -475,7 +475,7 @@ struct module {
 	ctor_fn_t *ctors;
 	unsigned int num_ctors;
 #endif
-} ____cacheline_aligned;
+} ____cacheline_aligned __randomize_layout;
 #ifndef MODULE_ARCH_INIT
 #define MODULE_ARCH_INIT {}
 #endif
diff --git a/include/linux/mount.h b/include/linux/mount.h
index 8e0352af06b7..1ce85e6fd95f 100644
--- a/include/linux/mount.h
+++ b/include/linux/mount.h
@@ -67,7 +67,7 @@ struct vfsmount {
 	struct dentry *mnt_root;	/* root of the mounted tree */
 	struct super_block *mnt_sb;	/* pointer to superblock */
 	int mnt_flags;
-};
+} __randomize_layout;
 
 struct file; /* forward dec */
 struct path;
diff --git a/include/linux/msg.h b/include/linux/msg.h
index f3f302f9c197..a001305f5a79 100644
--- a/include/linux/msg.h
+++ b/include/linux/msg.h
@@ -29,7 +29,7 @@ struct msg_queue {
 	struct list_head q_messages;
 	struct list_head q_receivers;
 	struct list_head q_senders;
-};
+} __randomize_layout;
 
 /* Helper routines for sys_msgsnd and sys_msgrcv */
 extern long do_msgsnd(int msqid, long mtype, void __user *mtext,
diff --git a/include/linux/mtd/nand.h b/include/linux/mtd/nand.h
index de0d889e4fe1..5216d2eb2289 100644
--- a/include/linux/mtd/nand.h
+++ b/include/linux/mtd/nand.h
@@ -107,6 +107,8 @@ int nand_unlock(struct mtd_info *mtd, loff_t ofs, uint64_t len);
 #define NAND_STATUS_READY	0x40
 #define NAND_STATUS_WP		0x80
 
+#define NAND_DATA_IFACE_CHECK_ONLY	-1
+
 /*
  * Constants for ECC_MODES
  */
@@ -116,6 +118,7 @@ typedef enum {
 	NAND_ECC_HW,
 	NAND_ECC_HW_SYNDROME,
 	NAND_ECC_HW_OOB_FIRST,
+	NAND_ECC_ON_DIE,
 } nand_ecc_modes_t;
 
 enum nand_ecc_algo {
@@ -257,6 +260,8 @@ struct nand_chip;
 
 /* Vendor-specific feature address (Micron) */
 #define ONFI_FEATURE_ADDR_READ_RETRY	0x89
+#define ONFI_FEATURE_ON_DIE_ECC		0x90
+#define   ONFI_FEATURE_ON_DIE_ECC_EN	BIT(3)
 
 /* ONFI subfeature parameters length */
 #define ONFI_SUBFEATURE_PARAM_LEN	4
@@ -477,6 +482,44 @@ static inline void nand_hw_control_init(struct nand_hw_control *nfc)
 }
 
 /**
+ * struct nand_ecc_step_info - ECC step information of ECC engine
+ * @stepsize: data bytes per ECC step
+ * @strengths: array of supported strengths
+ * @nstrengths: number of supported strengths
+ */
+struct nand_ecc_step_info {
+	int stepsize;
+	const int *strengths;
+	int nstrengths;
+};
+
+/**
+ * struct nand_ecc_caps - capability of ECC engine
+ * @stepinfos: array of ECC step information
+ * @nstepinfos: number of ECC step information
+ * @calc_ecc_bytes: driver's hook to calculate ECC bytes per step
+ */
+struct nand_ecc_caps {
+	const struct nand_ecc_step_info *stepinfos;
+	int nstepinfos;
+	int (*calc_ecc_bytes)(int step_size, int strength);
+};
+
+/* a shorthand to generate struct nand_ecc_caps with only one ECC stepsize */
+#define NAND_ECC_CAPS_SINGLE(__name, __calc, __step, ...)	\
+static const int __name##_strengths[] = { __VA_ARGS__ };	\
+static const struct nand_ecc_step_info __name##_stepinfo = {	\
+	.stepsize = __step,					\
+	.strengths = __name##_strengths,			\
+	.nstrengths = ARRAY_SIZE(__name##_strengths),		\
+};								\
+static const struct nand_ecc_caps __name = {			\
+	.stepinfos = &__name##_stepinfo,			\
+	.nstepinfos = 1,					\
+	.calc_ecc_bytes = __calc,				\
+}
+
+/**
  * struct nand_ecc_ctrl - Control structure for ECC
  * @mode:	ECC mode
  * @algo:	ECC algorithm
@@ -638,10 +681,10 @@ struct nand_buffers {
  * @tWW_min: WP# transition to WE# low
  */
 struct nand_sdr_timings {
-	u32 tBERS_max;
+	u64 tBERS_max;
 	u32 tCCS_min;
-	u32 tPROG_max;
-	u32 tR_max;
+	u64 tPROG_max;
+	u64 tR_max;
 	u32 tALH_min;
 	u32 tADL_min;
 	u32 tALS_min;
@@ -815,7 +858,10 @@ struct nand_manufacturer_ops {
  * @read_retries:	[INTERN] the number of read retry modes supported
  * @onfi_set_features:	[REPLACEABLE] set the features for ONFI nand
  * @onfi_get_features:	[REPLACEABLE] get the features for ONFI nand
- * @setup_data_interface: [OPTIONAL] setup the data interface and timing
+ * @setup_data_interface: [OPTIONAL] setup the data interface and timing. If
+ *			  chipnr is set to %NAND_DATA_IFACE_CHECK_ONLY this
+ *			  means the configuration should not be applied but
+ *			  only checked.
  * @bbt:		[INTERN] bad block table pointer
  * @bbt_td:		[REPLACEABLE] bad block table descriptor for flash
  *			lookup.
@@ -826,9 +872,6 @@ struct nand_manufacturer_ops {
  *			structure which is shared among multiple independent
  *			devices.
  * @priv:		[OPTIONAL] pointer to private chip data
- * @errstat:		[OPTIONAL] hardware specific function to perform
- *			additional error status checks (determine if errors are
- *			correctable).
  * @manufacturer:	[INTERN] Contains manufacturer information
  */
 
@@ -852,16 +895,13 @@ struct nand_chip {
 	int(*waitfunc)(struct mtd_info *mtd, struct nand_chip *this);
 	int (*erase)(struct mtd_info *mtd, int page);
 	int (*scan_bbt)(struct mtd_info *mtd);
-	int (*errstat)(struct mtd_info *mtd, struct nand_chip *this, int state,
-			int status, int page);
 	int (*onfi_set_features)(struct mtd_info *mtd, struct nand_chip *chip,
 			int feature_addr, uint8_t *subfeature_para);
 	int (*onfi_get_features)(struct mtd_info *mtd, struct nand_chip *chip,
 			int feature_addr, uint8_t *subfeature_para);
 	int (*setup_read_retry)(struct mtd_info *mtd, int retry_mode);
-	int (*setup_data_interface)(struct mtd_info *mtd,
-				    const struct nand_data_interface *conf,
-				    bool check_only);
+	int (*setup_data_interface)(struct mtd_info *mtd, int chipnr,
+				    const struct nand_data_interface *conf);
 
 
 	int chip_delay;
@@ -1244,6 +1284,15 @@ int nand_check_erased_ecc_chunk(void *data, int datalen,
 				void *extraoob, int extraooblen,
 				int threshold);
 
+int nand_check_ecc_caps(struct nand_chip *chip,
+			const struct nand_ecc_caps *caps, int oobavail);
+
+int nand_match_ecc_req(struct nand_chip *chip,
+		       const struct nand_ecc_caps *caps,  int oobavail);
+
+int nand_maximize_ecc(struct nand_chip *chip,
+		      const struct nand_ecc_caps *caps, int oobavail);
+
 /* Default write_oob implementation */
 int nand_write_oob_std(struct mtd_info *mtd, struct nand_chip *chip, int page);
 
@@ -1258,6 +1307,19 @@ int nand_read_oob_std(struct mtd_info *mtd, struct nand_chip *chip, int page);
 int nand_read_oob_syndrome(struct mtd_info *mtd, struct nand_chip *chip,
 			   int page);
 
+/* Stub used by drivers that do not support GET/SET FEATURES operations */
+int nand_onfi_get_set_features_notsupp(struct mtd_info *mtd,
+				       struct nand_chip *chip, int addr,
+				       u8 *subfeature_param);
+
+/* Default read_page_raw implementation */
+int nand_read_page_raw(struct mtd_info *mtd, struct nand_chip *chip,
+		       uint8_t *buf, int oob_required, int page);
+
+/* Default write_page_raw implementation */
+int nand_write_page_raw(struct mtd_info *mtd, struct nand_chip *chip,
+			const uint8_t *buf, int oob_required, int page);
+
 /* Reset and initialize a NAND device */
 int nand_reset(struct nand_chip *chip, int chipnr);
 
diff --git a/include/linux/mtd/partitions.h b/include/linux/mtd/partitions.h
index 06df1e06b6e0..c4beb70dacbd 100644
--- a/include/linux/mtd/partitions.h
+++ b/include/linux/mtd/partitions.h
@@ -20,6 +20,12 @@
  *
  * For each partition, these fields are available:
  * name: string that will be used to label the partition's MTD device.
+ * types: some partitions can be containers using specific format to describe
+ *	embedded subpartitions / volumes. E.g. many home routers use "firmware"
+ *	partition that contains at least kernel and rootfs. In such case an
+ *	extra parser is needed that will detect these dynamic partitions and
+ *	report them to the MTD subsystem. If set this property stores an array
+ *	of parser names to use when looking for subpartitions.
  * size: the partition size; if defined as MTDPART_SIZ_FULL, the partition
  * 	will extend to the end of the master MTD device.
  * offset: absolute starting position within the master MTD device; if
@@ -38,6 +44,7 @@
 
 struct mtd_partition {
 	const char *name;		/* identifier string */
+	const char *const *types;	/* names of parsers to use if any */
 	uint64_t size;			/* partition size */
 	uint64_t offset;		/* offset within the master MTD space */
 	uint32_t mask_flags;		/* master MTD flags to mask out for this partition */
diff --git a/include/linux/mtd/spi-nor.h b/include/linux/mtd/spi-nor.h
index f2a718030476..55faa2f07cca 100644
--- a/include/linux/mtd/spi-nor.h
+++ b/include/linux/mtd/spi-nor.h
@@ -73,6 +73,15 @@
 #define SPINOR_OP_BE_32K_4B	0x5c	/* Erase 32KiB block */
 #define SPINOR_OP_SE_4B		0xdc	/* Sector erase (usually 64KiB) */
 
+/* Double Transfer Rate opcodes - defined in JEDEC JESD216B. */
+#define SPINOR_OP_READ_1_1_1_DTR	0x0d
+#define SPINOR_OP_READ_1_2_2_DTR	0xbd
+#define SPINOR_OP_READ_1_4_4_DTR	0xed
+
+#define SPINOR_OP_READ_1_1_1_DTR_4B	0x0e
+#define SPINOR_OP_READ_1_2_2_DTR_4B	0xbe
+#define SPINOR_OP_READ_1_4_4_DTR_4B	0xee
+
 /* Used for SST flashes only. */
 #define SPINOR_OP_BP		0x02	/* Byte program */
 #define SPINOR_OP_WRDI		0x04	/* Write disable */
@@ -119,13 +128,81 @@
 /* Configuration Register bits. */
 #define CR_QUAD_EN_SPAN		BIT(1)	/* Spansion Quad I/O */
 
-enum read_mode {
-	SPI_NOR_NORMAL = 0,
-	SPI_NOR_FAST,
-	SPI_NOR_DUAL,
-	SPI_NOR_QUAD,
+/* Supported SPI protocols */
+#define SNOR_PROTO_INST_MASK	GENMASK(23, 16)
+#define SNOR_PROTO_INST_SHIFT	16
+#define SNOR_PROTO_INST(_nbits)	\
+	((((unsigned long)(_nbits)) << SNOR_PROTO_INST_SHIFT) & \
+	 SNOR_PROTO_INST_MASK)
+
+#define SNOR_PROTO_ADDR_MASK	GENMASK(15, 8)
+#define SNOR_PROTO_ADDR_SHIFT	8
+#define SNOR_PROTO_ADDR(_nbits)	\
+	((((unsigned long)(_nbits)) << SNOR_PROTO_ADDR_SHIFT) & \
+	 SNOR_PROTO_ADDR_MASK)
+
+#define SNOR_PROTO_DATA_MASK	GENMASK(7, 0)
+#define SNOR_PROTO_DATA_SHIFT	0
+#define SNOR_PROTO_DATA(_nbits)	\
+	((((unsigned long)(_nbits)) << SNOR_PROTO_DATA_SHIFT) & \
+	 SNOR_PROTO_DATA_MASK)
+
+#define SNOR_PROTO_IS_DTR	BIT(24)	/* Double Transfer Rate */
+
+#define SNOR_PROTO_STR(_inst_nbits, _addr_nbits, _data_nbits)	\
+	(SNOR_PROTO_INST(_inst_nbits) |				\
+	 SNOR_PROTO_ADDR(_addr_nbits) |				\
+	 SNOR_PROTO_DATA(_data_nbits))
+#define SNOR_PROTO_DTR(_inst_nbits, _addr_nbits, _data_nbits)	\
+	(SNOR_PROTO_IS_DTR |					\
+	 SNOR_PROTO_STR(_inst_nbits, _addr_nbits, _data_nbits))
+
+enum spi_nor_protocol {
+	SNOR_PROTO_1_1_1 = SNOR_PROTO_STR(1, 1, 1),
+	SNOR_PROTO_1_1_2 = SNOR_PROTO_STR(1, 1, 2),
+	SNOR_PROTO_1_1_4 = SNOR_PROTO_STR(1, 1, 4),
+	SNOR_PROTO_1_1_8 = SNOR_PROTO_STR(1, 1, 8),
+	SNOR_PROTO_1_2_2 = SNOR_PROTO_STR(1, 2, 2),
+	SNOR_PROTO_1_4_4 = SNOR_PROTO_STR(1, 4, 4),
+	SNOR_PROTO_1_8_8 = SNOR_PROTO_STR(1, 8, 8),
+	SNOR_PROTO_2_2_2 = SNOR_PROTO_STR(2, 2, 2),
+	SNOR_PROTO_4_4_4 = SNOR_PROTO_STR(4, 4, 4),
+	SNOR_PROTO_8_8_8 = SNOR_PROTO_STR(8, 8, 8),
+
+	SNOR_PROTO_1_1_1_DTR = SNOR_PROTO_DTR(1, 1, 1),
+	SNOR_PROTO_1_2_2_DTR = SNOR_PROTO_DTR(1, 2, 2),
+	SNOR_PROTO_1_4_4_DTR = SNOR_PROTO_DTR(1, 4, 4),
+	SNOR_PROTO_1_8_8_DTR = SNOR_PROTO_DTR(1, 8, 8),
 };
 
+static inline bool spi_nor_protocol_is_dtr(enum spi_nor_protocol proto)
+{
+	return !!(proto & SNOR_PROTO_IS_DTR);
+}
+
+static inline u8 spi_nor_get_protocol_inst_nbits(enum spi_nor_protocol proto)
+{
+	return ((unsigned long)(proto & SNOR_PROTO_INST_MASK)) >>
+		SNOR_PROTO_INST_SHIFT;
+}
+
+static inline u8 spi_nor_get_protocol_addr_nbits(enum spi_nor_protocol proto)
+{
+	return ((unsigned long)(proto & SNOR_PROTO_ADDR_MASK)) >>
+		SNOR_PROTO_ADDR_SHIFT;
+}
+
+static inline u8 spi_nor_get_protocol_data_nbits(enum spi_nor_protocol proto)
+{
+	return ((unsigned long)(proto & SNOR_PROTO_DATA_MASK)) >>
+		SNOR_PROTO_DATA_SHIFT;
+}
+
+static inline u8 spi_nor_get_protocol_width(enum spi_nor_protocol proto)
+{
+	return spi_nor_get_protocol_data_nbits(proto);
+}
+
 #define SPI_NOR_MAX_CMD_SIZE	8
 enum spi_nor_ops {
 	SPI_NOR_OPS_READ = 0,
@@ -154,9 +231,11 @@ enum spi_nor_option_flags {
  * @read_opcode:	the read opcode
  * @read_dummy:		the dummy needed by the read operation
  * @program_opcode:	the program opcode
- * @flash_read:		the mode of the read
  * @sst_write_second:	used by the SST write operation
  * @flags:		flag options for the current SPI-NOR (SNOR_F_*)
+ * @read_proto:		the SPI protocol for read operations
+ * @write_proto:	the SPI protocol for write operations
+ * @reg_proto		the SPI protocol for read_reg/write_reg/erase operations
  * @cmd_buf:		used by the write_reg
  * @prepare:		[OPTIONAL] do some preparations for the
  *			read/write/erase/lock/unlock operations
@@ -185,7 +264,9 @@ struct spi_nor {
 	u8			read_opcode;
 	u8			read_dummy;
 	u8			program_opcode;
-	enum read_mode		flash_read;
+	enum spi_nor_protocol	read_proto;
+	enum spi_nor_protocol	write_proto;
+	enum spi_nor_protocol	reg_proto;
 	bool			sst_write_second;
 	u32			flags;
 	u8			cmd_buf[SPI_NOR_MAX_CMD_SIZE];
@@ -220,10 +301,71 @@ static inline struct device_node *spi_nor_get_flash_node(struct spi_nor *nor)
 }
 
 /**
+ * struct spi_nor_hwcaps - Structure for describing the hardware capabilies
+ * supported by the SPI controller (bus master).
+ * @mask:		the bitmask listing all the supported hw capabilies
+ */
+struct spi_nor_hwcaps {
+	u32	mask;
+};
+
+/*
+ *(Fast) Read capabilities.
+ * MUST be ordered by priority: the higher bit position, the higher priority.
+ * As a matter of performances, it is relevant to use Octo SPI protocols first,
+ * then Quad SPI protocols before Dual SPI protocols, Fast Read and lastly
+ * (Slow) Read.
+ */
+#define SNOR_HWCAPS_READ_MASK		GENMASK(14, 0)
+#define SNOR_HWCAPS_READ		BIT(0)
+#define SNOR_HWCAPS_READ_FAST		BIT(1)
+#define SNOR_HWCAPS_READ_1_1_1_DTR	BIT(2)
+
+#define SNOR_HWCAPS_READ_DUAL		GENMASK(6, 3)
+#define SNOR_HWCAPS_READ_1_1_2		BIT(3)
+#define SNOR_HWCAPS_READ_1_2_2		BIT(4)
+#define SNOR_HWCAPS_READ_2_2_2		BIT(5)
+#define SNOR_HWCAPS_READ_1_2_2_DTR	BIT(6)
+
+#define SNOR_HWCAPS_READ_QUAD		GENMASK(10, 7)
+#define SNOR_HWCAPS_READ_1_1_4		BIT(7)
+#define SNOR_HWCAPS_READ_1_4_4		BIT(8)
+#define SNOR_HWCAPS_READ_4_4_4		BIT(9)
+#define SNOR_HWCAPS_READ_1_4_4_DTR	BIT(10)
+
+#define SNOR_HWCPAS_READ_OCTO		GENMASK(14, 11)
+#define SNOR_HWCAPS_READ_1_1_8		BIT(11)
+#define SNOR_HWCAPS_READ_1_8_8		BIT(12)
+#define SNOR_HWCAPS_READ_8_8_8		BIT(13)
+#define SNOR_HWCAPS_READ_1_8_8_DTR	BIT(14)
+
+/*
+ * Page Program capabilities.
+ * MUST be ordered by priority: the higher bit position, the higher priority.
+ * Like (Fast) Read capabilities, Octo/Quad SPI protocols are preferred to the
+ * legacy SPI 1-1-1 protocol.
+ * Note that Dual Page Programs are not supported because there is no existing
+ * JEDEC/SFDP standard to define them. Also at this moment no SPI flash memory
+ * implements such commands.
+ */
+#define SNOR_HWCAPS_PP_MASK	GENMASK(22, 16)
+#define SNOR_HWCAPS_PP		BIT(16)
+
+#define SNOR_HWCAPS_PP_QUAD	GENMASK(19, 17)
+#define SNOR_HWCAPS_PP_1_1_4	BIT(17)
+#define SNOR_HWCAPS_PP_1_4_4	BIT(18)
+#define SNOR_HWCAPS_PP_4_4_4	BIT(19)
+
+#define SNOR_HWCAPS_PP_OCTO	GENMASK(22, 20)
+#define SNOR_HWCAPS_PP_1_1_8	BIT(20)
+#define SNOR_HWCAPS_PP_1_8_8	BIT(21)
+#define SNOR_HWCAPS_PP_8_8_8	BIT(22)
+
+/**
  * spi_nor_scan() - scan the SPI NOR
  * @nor:	the spi_nor structure
  * @name:	the chip type name
- * @mode:	the read mode supported by the driver
+ * @hwcaps:	the hardware capabilities supported by the controller driver
  *
  * The drivers can use this fuction to scan the SPI NOR.
  * In the scanning, it will try to get all the necessary information to
@@ -233,6 +375,7 @@ static inline struct device_node *spi_nor_get_flash_node(struct spi_nor *nor)
  *
  * Return: 0 for success, others for failure.
  */
-int spi_nor_scan(struct spi_nor *nor, const char *name, enum read_mode mode);
+int spi_nor_scan(struct spi_nor *nor, const char *name,
+		 const struct spi_nor_hwcaps *hwcaps);
 
 #endif
diff --git a/include/linux/net.h b/include/linux/net.h
index abcfa46a2bd9..ebeb48c92005 100644
--- a/include/linux/net.h
+++ b/include/linux/net.h
@@ -37,7 +37,7 @@ struct net;
 
 /* Historically, SOCKWQ_ASYNC_NOSPACE & SOCKWQ_ASYNC_WAITDATA were located
  * in sock->flags, but moved into sk->sk_wq->flags to be RCU protected.
- * Eventually all flags will be in sk->sk_wq_flags.
+ * Eventually all flags will be in sk->sk_wq->flags.
  */
 #define SOCKWQ_ASYNC_NOSPACE	0
 #define SOCKWQ_ASYNC_WAITDATA	1
@@ -274,6 +274,8 @@ do {									\
 
 #define net_get_random_once(buf, nbytes)			\
 	get_random_once((buf), (nbytes))
+#define net_get_random_once_wait(buf, nbytes)			\
+	get_random_once_wait((buf), (nbytes))
 
 int kernel_sendmsg(struct socket *sock, struct msghdr *msg, struct kvec *vec,
 		   size_t num, size_t len);
diff --git a/include/linux/netfilter.h b/include/linux/netfilter.h
index a4b97be30b28..22f081065d49 100644
--- a/include/linux/netfilter.h
+++ b/include/linux/netfilter.h
@@ -61,8 +61,6 @@ typedef unsigned int nf_hookfn(void *priv,
 			       struct sk_buff *skb,
 			       const struct nf_hook_state *state);
 struct nf_hook_ops {
-	struct list_head	list;
-
 	/* User fills in from here down. */
 	nf_hookfn		*hook;
 	struct net_device	*dev;
@@ -160,13 +158,6 @@ int nf_register_net_hooks(struct net *net, const struct nf_hook_ops *reg,
 void nf_unregister_net_hooks(struct net *net, const struct nf_hook_ops *reg,
 			     unsigned int n);
 
-int nf_register_hook(struct nf_hook_ops *reg);
-void nf_unregister_hook(struct nf_hook_ops *reg);
-int nf_register_hooks(struct nf_hook_ops *reg, unsigned int n);
-void nf_unregister_hooks(struct nf_hook_ops *reg, unsigned int n);
-int _nf_register_hooks(struct nf_hook_ops *reg, unsigned int n);
-void _nf_unregister_hooks(struct nf_hook_ops *reg, unsigned int n);
-
 /* Functions to register get/setsockopt ranges (non-inclusive).  You
    need to check permissions yourself! */
 int nf_register_sockopt(struct nf_sockopt_ops *reg);
diff --git a/include/linux/nfs4.h b/include/linux/nfs4.h
index 1b1ca04820a3..47239c336688 100644
--- a/include/linux/nfs4.h
+++ b/include/linux/nfs4.h
@@ -479,6 +479,7 @@ enum {
 	NFSPROC4_CLNT_ACCESS,
 	NFSPROC4_CLNT_GETATTR,
 	NFSPROC4_CLNT_LOOKUP,
+	NFSPROC4_CLNT_LOOKUPP,
 	NFSPROC4_CLNT_LOOKUP_ROOT,
 	NFSPROC4_CLNT_REMOVE,
 	NFSPROC4_CLNT_RENAME,
diff --git a/include/linux/nfs_fs.h b/include/linux/nfs_fs.h
index bb0eb2c9acca..5cc91d6381a3 100644
--- a/include/linux/nfs_fs.h
+++ b/include/linux/nfs_fs.h
@@ -51,7 +51,7 @@ struct nfs_access_entry {
 	struct list_head	lru;
 	unsigned long		jiffies;
 	struct rpc_cred *	cred;
-	int			mask;
+	__u32			mask;
 	struct rcu_head		rcu_head;
 };
 
@@ -332,6 +332,7 @@ extern void nfs_zap_caches(struct inode *);
 extern void nfs_invalidate_atime(struct inode *);
 extern struct inode *nfs_fhget(struct super_block *, struct nfs_fh *,
 				struct nfs_fattr *, struct nfs4_label *);
+struct inode *nfs_ilookup(struct super_block *sb, struct nfs_fattr *, struct nfs_fh *);
 extern int nfs_refresh_inode(struct inode *, struct nfs_fattr *);
 extern int nfs_post_op_update_inode(struct inode *inode, struct nfs_fattr *fattr);
 extern int nfs_post_op_update_inode_force_wcc(struct inode *inode, struct nfs_fattr *fattr);
diff --git a/include/linux/nfs_fs_sb.h b/include/linux/nfs_fs_sb.h
index e418a1096662..74c44665e6d3 100644
--- a/include/linux/nfs_fs_sb.h
+++ b/include/linux/nfs_fs_sb.h
@@ -42,6 +42,7 @@ struct nfs_client {
 #define NFS_CS_MIGRATION	2		/* - transparent state migr */
 #define NFS_CS_INFINITE_SLOTS	3		/* - don't limit TCP slots */
 #define NFS_CS_NO_RETRANS_TIMEOUT	4	/* - Disable retransmit timeouts */
+#define NFS_CS_TSM_POSSIBLE	5		/* - Maybe state migration */
 	struct sockaddr_storage	cl_addr;	/* server identifier */
 	size_t			cl_addrlen;
 	char *			cl_hostname;	/* hostname of server */
@@ -210,6 +211,7 @@ struct nfs_server {
 	unsigned long		mig_status;
 #define NFS_MIG_IN_TRANSITION		(1)
 #define NFS_MIG_FAILED			(2)
+#define NFS_MIG_TSM_POSSIBLE		(3)
 
 	void (*destroy)(struct nfs_server *);
 
diff --git a/include/linux/nfs_page.h b/include/linux/nfs_page.h
index 247cc3d3498f..d67b67ae6c8b 100644
--- a/include/linux/nfs_page.h
+++ b/include/linux/nfs_page.h
@@ -33,6 +33,8 @@ enum {
 	PG_UPTODATE,		/* page group sync bit in read path */
 	PG_WB_END,		/* page group sync bit in write path */
 	PG_REMOVE,		/* page group sync bit in write path */
+	PG_CONTENDED1,		/* Is someone waiting for a lock? */
+	PG_CONTENDED2,		/* Is someone waiting for a lock? */
 };
 
 struct nfs_inode;
@@ -93,8 +95,8 @@ struct nfs_pageio_descriptor {
 	const struct rpc_call_ops *pg_rpc_callops;
 	const struct nfs_pgio_completion_ops *pg_completion_ops;
 	struct pnfs_layout_segment *pg_lseg;
+	struct nfs_io_completion *pg_io_completion;
 	struct nfs_direct_req	*pg_dreq;
-	void			*pg_layout_private;
 	unsigned int		pg_bsize;	/* default bsize for mirrors */
 
 	u32			pg_mirror_count;
diff --git a/include/linux/nfs_xdr.h b/include/linux/nfs_xdr.h
index b28c83475ee8..62cbcb842f99 100644
--- a/include/linux/nfs_xdr.h
+++ b/include/linux/nfs_xdr.h
@@ -878,7 +878,7 @@ struct nfs3_readdirargs {
 	struct nfs_fh *		fh;
 	__u64			cookie;
 	__be32			verf[2];
-	int			plus;
+	bool			plus;
 	unsigned int            count;
 	struct page **		pages;
 };
@@ -909,7 +909,7 @@ struct nfs3_linkres {
 struct nfs3_readdirres {
 	struct nfs_fattr *	dir_attr;
 	__be32 *		verf;
-	int			plus;
+	bool			plus;
 };
 
 struct nfs3_getaclres {
@@ -1012,7 +1012,6 @@ struct nfs4_link_res {
 	struct nfs_fattr *		dir_attr;
 };
 
-
 struct nfs4_lookup_arg {
 	struct nfs4_sequence_args	seq_args;
 	const struct nfs_fh *		dir_fh;
@@ -1028,6 +1027,20 @@ struct nfs4_lookup_res {
 	struct nfs4_label		*label;
 };
 
+struct nfs4_lookupp_arg {
+	struct nfs4_sequence_args	seq_args;
+	const struct nfs_fh		*fh;
+	const u32			*bitmask;
+};
+
+struct nfs4_lookupp_res {
+	struct nfs4_sequence_res	seq_res;
+	const struct nfs_server		*server;
+	struct nfs_fattr		*fattr;
+	struct nfs_fh			*fh;
+	struct nfs4_label		*label;
+};
+
 struct nfs4_lookup_root_arg {
 	struct nfs4_sequence_args	seq_args;
 	const u32 *			bitmask;
@@ -1053,7 +1066,7 @@ struct nfs4_readdir_arg {
 	struct page **			pages;	/* zero-copy data */
 	unsigned int			pgbase;	/* zero-copy data */
 	const u32 *			bitmask;
-	int				plus;
+	bool				plus;
 };
 
 struct nfs4_readdir_res {
@@ -1222,7 +1235,7 @@ struct nfs41_state_protection {
 
 struct nfs41_exchange_id_args {
 	struct nfs_client		*client;
-	nfs4_verifier			*verifier;
+	nfs4_verifier			verifier;
 	u32				flags;
 	struct nfs41_state_protection	state_protect;
 };
@@ -1422,6 +1435,7 @@ enum {
 	NFS_IOHDR_STAT,
 };
 
+struct nfs_io_completion;
 struct nfs_pgio_header {
 	struct inode		*inode;
 	struct rpc_cred		*cred;
@@ -1435,8 +1449,8 @@ struct nfs_pgio_header {
 	void (*release) (struct nfs_pgio_header *hdr);
 	const struct nfs_pgio_completion_ops *completion_ops;
 	const struct nfs_rw_ops	*rw_ops;
+	struct nfs_io_completion *io_completion;
 	struct nfs_direct_req	*dreq;
-	void			*layout_private;
 	spinlock_t		lock;
 	/* fields protected by lock */
 	int			pnfs_error;
@@ -1533,6 +1547,7 @@ struct nfs_renamedata {
 	struct nfs_fattr	new_fattr;
 	void (*complete)(struct rpc_task *, struct nfs_renamedata *);
 	long timeout;
+	bool cancelled;
 };
 
 struct nfs_access_entry;
@@ -1567,6 +1582,8 @@ struct nfs_rpc_ops {
 	int	(*lookup)  (struct inode *, const struct qstr *,
 			    struct nfs_fh *, struct nfs_fattr *,
 			    struct nfs4_label *);
+	int	(*lookupp) (struct inode *, struct nfs_fh *,
+			    struct nfs_fattr *, struct nfs4_label *);
 	int	(*access)  (struct inode *, struct nfs_access_entry *);
 	int	(*readlink)(struct inode *, struct page *, unsigned int,
 			    unsigned int);
@@ -1585,7 +1602,7 @@ struct nfs_rpc_ops {
 	int	(*mkdir)   (struct inode *, struct dentry *, struct iattr *);
 	int	(*rmdir)   (struct inode *, const struct qstr *);
 	int	(*readdir) (struct dentry *, struct rpc_cred *,
-			    u64, struct page **, unsigned int, int);
+			    u64, struct page **, unsigned int, bool);
 	int	(*mknod)   (struct inode *, struct dentry *, struct iattr *,
 			    dev_t);
 	int	(*statfs)  (struct nfs_server *, struct nfs_fh *,
@@ -1595,7 +1612,7 @@ struct nfs_rpc_ops {
 	int	(*pathconf) (struct nfs_server *, struct nfs_fh *,
 			     struct nfs_pathconf *);
 	int	(*set_capabilities)(struct nfs_server *, struct nfs_fh *);
-	int	(*decode_dirent)(struct xdr_stream *, struct nfs_entry *, int);
+	int	(*decode_dirent)(struct xdr_stream *, struct nfs_entry *, bool);
 	int	(*pgio_rpc_prepare)(struct rpc_task *,
 				    struct nfs_pgio_header *);
 	void	(*read_setup)(struct nfs_pgio_header *, struct rpc_message *);
diff --git a/include/linux/nmi.h b/include/linux/nmi.h
index aa3cd0878270..a36abe2da13e 100644
--- a/include/linux/nmi.h
+++ b/include/linux/nmi.h
@@ -6,18 +6,26 @@
 
 #include <linux/sched.h>
 #include <asm/irq.h>
+#if defined(CONFIG_HAVE_NMI_WATCHDOG)
+#include <asm/nmi.h>
+#endif
 
 #ifdef CONFIG_LOCKUP_DETECTOR
+void lockup_detector_init(void);
+#else
+static inline void lockup_detector_init(void)
+{
+}
+#endif
+
+#ifdef CONFIG_SOFTLOCKUP_DETECTOR
 extern void touch_softlockup_watchdog_sched(void);
 extern void touch_softlockup_watchdog(void);
 extern void touch_softlockup_watchdog_sync(void);
 extern void touch_all_softlockup_watchdogs(void);
-extern int proc_dowatchdog_thresh(struct ctl_table *table, int write,
-				  void __user *buffer,
-				  size_t *lenp, loff_t *ppos);
 extern unsigned int  softlockup_panic;
-extern unsigned int  hardlockup_panic;
-void lockup_detector_init(void);
+extern int soft_watchdog_enabled;
+extern atomic_t watchdog_park_in_progress;
 #else
 static inline void touch_softlockup_watchdog_sched(void)
 {
@@ -31,9 +39,6 @@ static inline void touch_softlockup_watchdog_sync(void)
 static inline void touch_all_softlockup_watchdogs(void)
 {
 }
-static inline void lockup_detector_init(void)
-{
-}
 #endif
 
 #ifdef CONFIG_DETECT_HUNG_TASK
@@ -61,6 +66,21 @@ static inline void reset_hung_task_detector(void)
 #define NMI_WATCHDOG_ENABLED      (1 << NMI_WATCHDOG_ENABLED_BIT)
 #define SOFT_WATCHDOG_ENABLED     (1 << SOFT_WATCHDOG_ENABLED_BIT)
 
+#if defined(CONFIG_HARDLOCKUP_DETECTOR)
+extern void hardlockup_detector_disable(void);
+extern unsigned int hardlockup_panic;
+#else
+static inline void hardlockup_detector_disable(void) {}
+#endif
+
+#if defined(CONFIG_HARDLOCKUP_DETECTOR_PERF)
+extern void arch_touch_nmi_watchdog(void);
+#else
+#if !defined(CONFIG_HAVE_NMI_WATCHDOG)
+static inline void arch_touch_nmi_watchdog(void) {}
+#endif
+#endif
+
 /**
  * touch_nmi_watchdog - restart NMI watchdog timeout.
  * 
@@ -68,21 +88,11 @@ static inline void reset_hung_task_detector(void)
  * may be used to reset the timeout - for code which intentionally
  * disables interrupts for a long time. This call is stateless.
  */
-#if defined(CONFIG_HAVE_NMI_WATCHDOG) || defined(CONFIG_HARDLOCKUP_DETECTOR)
-#include <asm/nmi.h>
-extern void touch_nmi_watchdog(void);
-#else
 static inline void touch_nmi_watchdog(void)
 {
+	arch_touch_nmi_watchdog();
 	touch_softlockup_watchdog();
 }
-#endif
-
-#if defined(CONFIG_HARDLOCKUP_DETECTOR)
-extern void hardlockup_detector_disable(void);
-#else
-static inline void hardlockup_detector_disable(void) {}
-#endif
 
 /*
  * Create trigger_all_cpu_backtrace() out of the arch-provided
@@ -139,15 +149,18 @@ static inline bool trigger_single_cpu_backtrace(int cpu)
 }
 #endif
 
-#ifdef CONFIG_LOCKUP_DETECTOR
+#ifdef CONFIG_HARDLOCKUP_DETECTOR_PERF
 u64 hw_nmi_get_sample_period(int watchdog_thresh);
+#endif
+
+#ifdef CONFIG_LOCKUP_DETECTOR
 extern int nmi_watchdog_enabled;
-extern int soft_watchdog_enabled;
 extern int watchdog_user_enabled;
 extern int watchdog_thresh;
 extern unsigned long watchdog_enabled;
+extern struct cpumask watchdog_cpumask;
 extern unsigned long *watchdog_cpumask_bits;
-extern atomic_t watchdog_park_in_progress;
+extern int __read_mostly watchdog_suspended;
 #ifdef CONFIG_SMP
 extern int sysctl_softlockup_all_cpu_backtrace;
 extern int sysctl_hardlockup_all_cpu_backtrace;
@@ -155,6 +168,14 @@ extern int sysctl_hardlockup_all_cpu_backtrace;
 #define sysctl_softlockup_all_cpu_backtrace 0
 #define sysctl_hardlockup_all_cpu_backtrace 0
 #endif
+
+#if defined(CONFIG_HARDLOCKUP_CHECK_TIMESTAMP) && \
+    defined(CONFIG_HARDLOCKUP_DETECTOR)
+void watchdog_update_hrtimer_threshold(u64 period);
+#else
+static inline void watchdog_update_hrtimer_threshold(u64 period) { }
+#endif
+
 extern bool is_hardlockup(void);
 struct ctl_table;
 extern int proc_watchdog(struct ctl_table *, int ,
diff --git a/include/linux/ntb.h b/include/linux/ntb.h
index de87ceac110e..609e232c00da 100644
--- a/include/linux/ntb.h
+++ b/include/linux/ntb.h
@@ -5,6 +5,7 @@
  *   GPL LICENSE SUMMARY
  *
  *   Copyright (C) 2015 EMC Corporation. All Rights Reserved.
+ *   Copyright (C) 2016 T-Platforms. All Rights Reserved.
  *
  *   This program is free software; you can redistribute it and/or modify
  *   it under the terms of version 2 of the GNU General Public License as
@@ -18,6 +19,7 @@
  *   BSD LICENSE
  *
  *   Copyright (C) 2015 EMC Corporation. All Rights Reserved.
+ *   Copyright (C) 2016 T-Platforms. All Rights Reserved.
  *
  *   Redistribution and use in source and binary forms, with or without
  *   modification, are permitted provided that the following conditions
@@ -106,6 +108,7 @@ static inline char *ntb_topo_string(enum ntb_topo topo)
  * @NTB_SPEED_GEN1:	Link is trained to gen1 speed.
  * @NTB_SPEED_GEN2:	Link is trained to gen2 speed.
  * @NTB_SPEED_GEN3:	Link is trained to gen3 speed.
+ * @NTB_SPEED_GEN4:	Link is trained to gen4 speed.
  */
 enum ntb_speed {
 	NTB_SPEED_AUTO = -1,
@@ -113,6 +116,7 @@ enum ntb_speed {
 	NTB_SPEED_GEN1 = 1,
 	NTB_SPEED_GEN2 = 2,
 	NTB_SPEED_GEN3 = 3,
+	NTB_SPEED_GEN4 = 4
 };
 
 /**
@@ -140,6 +144,20 @@ enum ntb_width {
 };
 
 /**
+ * enum ntb_default_port - NTB default port number
+ * @NTB_PORT_PRI_USD:	Default port of the NTB_TOPO_PRI/NTB_TOPO_B2B_USD
+ *			topologies
+ * @NTB_PORT_SEC_DSD:	Default port of the NTB_TOPO_SEC/NTB_TOPO_B2B_DSD
+ *			topologies
+ */
+enum ntb_default_port {
+	NTB_PORT_PRI_USD,
+	NTB_PORT_SEC_DSD
+};
+#define NTB_DEF_PEER_CNT	(1)
+#define NTB_DEF_PEER_IDX	(0)
+
+/**
  * struct ntb_client_ops - ntb client operations
  * @probe:		Notify client of a new device.
  * @remove:		Notify client to remove a device.
@@ -162,10 +180,12 @@ static inline int ntb_client_ops_is_valid(const struct ntb_client_ops *ops)
  * struct ntb_ctx_ops - ntb driver context operations
  * @link_event:		See ntb_link_event().
  * @db_event:		See ntb_db_event().
+ * @msg_event:		See ntb_msg_event().
  */
 struct ntb_ctx_ops {
 	void (*link_event)(void *ctx);
 	void (*db_event)(void *ctx, int db_vector);
+	void (*msg_event)(void *ctx);
 };
 
 static inline int ntb_ctx_ops_is_valid(const struct ntb_ctx_ops *ops)
@@ -174,18 +194,27 @@ static inline int ntb_ctx_ops_is_valid(const struct ntb_ctx_ops *ops)
 	return
 		/* ops->link_event		&& */
 		/* ops->db_event		&& */
+		/* ops->msg_event		&& */
 		1;
 }
 
 /**
  * struct ntb_ctx_ops - ntb device operations
- * @mw_count:		See ntb_mw_count().
- * @mw_get_range:	See ntb_mw_get_range().
- * @mw_set_trans:	See ntb_mw_set_trans().
- * @mw_clear_trans:	See ntb_mw_clear_trans().
+ * @port_number:	See ntb_port_number().
+ * @peer_port_count:	See ntb_peer_port_count().
+ * @peer_port_number:	See ntb_peer_port_number().
+ * @peer_port_idx:	See ntb_peer_port_idx().
  * @link_is_up:		See ntb_link_is_up().
  * @link_enable:	See ntb_link_enable().
  * @link_disable:	See ntb_link_disable().
+ * @mw_count:		See ntb_mw_count().
+ * @mw_get_align:	See ntb_mw_get_align().
+ * @mw_set_trans:	See ntb_mw_set_trans().
+ * @mw_clear_trans:	See ntb_mw_clear_trans().
+ * @peer_mw_count:	See ntb_peer_mw_count().
+ * @peer_mw_get_addr:	See ntb_peer_mw_get_addr().
+ * @peer_mw_set_trans:	See ntb_peer_mw_set_trans().
+ * @peer_mw_clear_trans:See ntb_peer_mw_clear_trans().
  * @db_is_unsafe:	See ntb_db_is_unsafe().
  * @db_valid_mask:	See ntb_db_valid_mask().
  * @db_vector_count:	See ntb_db_vector_count().
@@ -210,22 +239,43 @@ static inline int ntb_ctx_ops_is_valid(const struct ntb_ctx_ops *ops)
  * @peer_spad_addr:	See ntb_peer_spad_addr().
  * @peer_spad_read:	See ntb_peer_spad_read().
  * @peer_spad_write:	See ntb_peer_spad_write().
+ * @msg_count:		See ntb_msg_count().
+ * @msg_inbits:		See ntb_msg_inbits().
+ * @msg_outbits:	See ntb_msg_outbits().
+ * @msg_read_sts:	See ntb_msg_read_sts().
+ * @msg_clear_sts:	See ntb_msg_clear_sts().
+ * @msg_set_mask:	See ntb_msg_set_mask().
+ * @msg_clear_mask:	See ntb_msg_clear_mask().
+ * @msg_read:		See ntb_msg_read().
+ * @msg_write:		See ntb_msg_write().
  */
 struct ntb_dev_ops {
-	int (*mw_count)(struct ntb_dev *ntb);
-	int (*mw_get_range)(struct ntb_dev *ntb, int idx,
-			    phys_addr_t *base, resource_size_t *size,
-			resource_size_t *align, resource_size_t *align_size);
-	int (*mw_set_trans)(struct ntb_dev *ntb, int idx,
-			    dma_addr_t addr, resource_size_t size);
-	int (*mw_clear_trans)(struct ntb_dev *ntb, int idx);
+	int (*port_number)(struct ntb_dev *ntb);
+	int (*peer_port_count)(struct ntb_dev *ntb);
+	int (*peer_port_number)(struct ntb_dev *ntb, int pidx);
+	int (*peer_port_idx)(struct ntb_dev *ntb, int port);
 
-	int (*link_is_up)(struct ntb_dev *ntb,
+	u64 (*link_is_up)(struct ntb_dev *ntb,
 			  enum ntb_speed *speed, enum ntb_width *width);
 	int (*link_enable)(struct ntb_dev *ntb,
 			   enum ntb_speed max_speed, enum ntb_width max_width);
 	int (*link_disable)(struct ntb_dev *ntb);
 
+	int (*mw_count)(struct ntb_dev *ntb, int pidx);
+	int (*mw_get_align)(struct ntb_dev *ntb, int pidx, int widx,
+			    resource_size_t *addr_align,
+			    resource_size_t *size_align,
+			    resource_size_t *size_max);
+	int (*mw_set_trans)(struct ntb_dev *ntb, int pidx, int widx,
+			    dma_addr_t addr, resource_size_t size);
+	int (*mw_clear_trans)(struct ntb_dev *ntb, int pidx, int widx);
+	int (*peer_mw_count)(struct ntb_dev *ntb);
+	int (*peer_mw_get_addr)(struct ntb_dev *ntb, int widx,
+				phys_addr_t *base, resource_size_t *size);
+	int (*peer_mw_set_trans)(struct ntb_dev *ntb, int pidx, int widx,
+				 u64 addr, resource_size_t size);
+	int (*peer_mw_clear_trans)(struct ntb_dev *ntb, int pidx, int widx);
+
 	int (*db_is_unsafe)(struct ntb_dev *ntb);
 	u64 (*db_valid_mask)(struct ntb_dev *ntb);
 	int (*db_vector_count)(struct ntb_dev *ntb);
@@ -252,32 +302,55 @@ struct ntb_dev_ops {
 	int (*spad_is_unsafe)(struct ntb_dev *ntb);
 	int (*spad_count)(struct ntb_dev *ntb);
 
-	u32 (*spad_read)(struct ntb_dev *ntb, int idx);
-	int (*spad_write)(struct ntb_dev *ntb, int idx, u32 val);
+	u32 (*spad_read)(struct ntb_dev *ntb, int sidx);
+	int (*spad_write)(struct ntb_dev *ntb, int sidx, u32 val);
 
-	int (*peer_spad_addr)(struct ntb_dev *ntb, int idx,
+	int (*peer_spad_addr)(struct ntb_dev *ntb, int pidx, int sidx,
 			      phys_addr_t *spad_addr);
-	u32 (*peer_spad_read)(struct ntb_dev *ntb, int idx);
-	int (*peer_spad_write)(struct ntb_dev *ntb, int idx, u32 val);
+	u32 (*peer_spad_read)(struct ntb_dev *ntb, int pidx, int sidx);
+	int (*peer_spad_write)(struct ntb_dev *ntb, int pidx, int sidx,
+			       u32 val);
+
+	int (*msg_count)(struct ntb_dev *ntb);
+	u64 (*msg_inbits)(struct ntb_dev *ntb);
+	u64 (*msg_outbits)(struct ntb_dev *ntb);
+	u64 (*msg_read_sts)(struct ntb_dev *ntb);
+	int (*msg_clear_sts)(struct ntb_dev *ntb, u64 sts_bits);
+	int (*msg_set_mask)(struct ntb_dev *ntb, u64 mask_bits);
+	int (*msg_clear_mask)(struct ntb_dev *ntb, u64 mask_bits);
+	int (*msg_read)(struct ntb_dev *ntb, int midx, int *pidx, u32 *msg);
+	int (*msg_write)(struct ntb_dev *ntb, int midx, int pidx, u32 msg);
 };
 
 static inline int ntb_dev_ops_is_valid(const struct ntb_dev_ops *ops)
 {
 	/* commented callbacks are not required: */
 	return
-		ops->mw_count				&&
-		ops->mw_get_range			&&
-		ops->mw_set_trans			&&
-		/* ops->mw_clear_trans			&& */
+		/* Port operations are required for multiport devices */
+		!ops->peer_port_count == !ops->port_number	&&
+		!ops->peer_port_number == !ops->port_number	&&
+		!ops->peer_port_idx == !ops->port_number	&&
+
+		/* Link operations are required */
 		ops->link_is_up				&&
 		ops->link_enable			&&
 		ops->link_disable			&&
+
+		/* One or both MW interfaces should be developed */
+		ops->mw_count				&&
+		ops->mw_get_align			&&
+		(ops->mw_set_trans			||
+		 ops->peer_mw_set_trans)		&&
+		/* ops->mw_clear_trans			&& */
+		ops->peer_mw_count			&&
+		ops->peer_mw_get_addr			&&
+		/* ops->peer_mw_clear_trans		&& */
+
+		/* Doorbell operations are mostly required */
 		/* ops->db_is_unsafe			&& */
 		ops->db_valid_mask			&&
-
 		/* both set, or both unset */
-		(!ops->db_vector_count == !ops->db_vector_mask) &&
-
+		(!ops->db_vector_count == !ops->db_vector_mask)	&&
 		ops->db_read				&&
 		/* ops->db_set				&& */
 		ops->db_clear				&&
@@ -291,13 +364,24 @@ static inline int ntb_dev_ops_is_valid(const struct ntb_dev_ops *ops)
 		/* ops->peer_db_read_mask		&& */
 		/* ops->peer_db_set_mask		&& */
 		/* ops->peer_db_clear_mask		&& */
-		/* ops->spad_is_unsafe			&& */
-		ops->spad_count				&&
-		ops->spad_read				&&
-		ops->spad_write				&&
-		/* ops->peer_spad_addr			&& */
-		/* ops->peer_spad_read			&& */
-		ops->peer_spad_write			&&
+
+		/* Scrachpads interface is optional */
+		/* !ops->spad_is_unsafe == !ops->spad_count	&& */
+		!ops->spad_read == !ops->spad_count		&&
+		!ops->spad_write == !ops->spad_count		&&
+		/* !ops->peer_spad_addr == !ops->spad_count	&& */
+		/* !ops->peer_spad_read == !ops->spad_count	&& */
+		!ops->peer_spad_write == !ops->spad_count	&&
+
+		/* Messaging interface is optional */
+		!ops->msg_inbits == !ops->msg_count		&&
+		!ops->msg_outbits == !ops->msg_count		&&
+		!ops->msg_read_sts == !ops->msg_count		&&
+		!ops->msg_clear_sts == !ops->msg_count		&&
+		/* !ops->msg_set_mask == !ops->msg_count	&& */
+		/* !ops->msg_clear_mask == !ops->msg_count	&& */
+		!ops->msg_read == !ops->msg_count		&&
+		!ops->msg_write == !ops->msg_count		&&
 		1;
 }
 
@@ -310,13 +394,12 @@ struct ntb_client {
 	struct device_driver		drv;
 	const struct ntb_client_ops	ops;
 };
-
 #define drv_ntb_client(__drv) container_of((__drv), struct ntb_client, drv)
 
 /**
  * struct ntb_device - ntb device
  * @dev:		Linux device object.
- * @pdev:		Pci device entry of the ntb.
+ * @pdev:		PCI device entry of the ntb.
  * @topo:		Detected topology of the ntb.
  * @ops:		See &ntb_dev_ops.
  * @ctx:		See &ntb_ctx_ops.
@@ -337,7 +420,6 @@ struct ntb_dev {
 	/* block unregister until device is fully released */
 	struct completion		released;
 };
-
 #define dev_ntb(__dev) container_of((__dev), struct ntb_dev, dev)
 
 /**
@@ -434,86 +516,152 @@ void ntb_link_event(struct ntb_dev *ntb);
  * multiple interrupt vectors for doorbells, the vector number indicates which
  * vector received the interrupt.  The vector number is relative to the first
  * vector used for doorbells, starting at zero, and must be less than
- ** ntb_db_vector_count().  The driver may call ntb_db_read() to check which
+ * ntb_db_vector_count().  The driver may call ntb_db_read() to check which
  * doorbell bits need service, and ntb_db_vector_mask() to determine which of
  * those bits are associated with the vector number.
  */
 void ntb_db_event(struct ntb_dev *ntb, int vector);
 
 /**
- * ntb_mw_count() - get the number of memory windows
+ * ntb_msg_event() - notify driver context of a message event
  * @ntb:	NTB device context.
  *
- * Hardware and topology may support a different number of memory windows.
+ * Notify the driver context of a message event.  If hardware supports
+ * message registers, this event indicates, that a new message arrived in
+ * some incoming message register or last sent message couldn't be delivered.
+ * The events can be masked/unmasked by the methods ntb_msg_set_mask() and
+ * ntb_msg_clear_mask().
+ */
+void ntb_msg_event(struct ntb_dev *ntb);
+
+/**
+ * ntb_default_port_number() - get the default local port number
+ * @ntb:	NTB device context.
  *
- * Return: the number of memory windows.
+ * If hardware driver doesn't specify port_number() callback method, the NTB
+ * is considered with just two ports. So this method returns default local
+ * port number in compliance with topology.
+ *
+ * NOTE Don't call this method directly. The ntb_port_number() function should
+ * be used instead.
+ *
+ * Return: the default local port number
+ */
+int ntb_default_port_number(struct ntb_dev *ntb);
+
+/**
+ * ntb_default_port_count() - get the default number of peer device ports
+ * @ntb:	NTB device context.
+ *
+ * By default hardware driver supports just one peer device.
+ *
+ * NOTE Don't call this method directly. The ntb_peer_port_count() function
+ * should be used instead.
+ *
+ * Return: the default number of peer ports
+ */
+int ntb_default_peer_port_count(struct ntb_dev *ntb);
+
+/**
+ * ntb_default_peer_port_number() - get the default peer port by given index
+ * @ntb:	NTB device context.
+ * @idx:	Peer port index (should not differ from zero).
+ *
+ * By default hardware driver supports just one peer device, so this method
+ * shall return the corresponding value from enum ntb_default_port.
+ *
+ * NOTE Don't call this method directly. The ntb_peer_port_number() function
+ * should be used instead.
+ *
+ * Return: the peer device port or negative value indicating an error
+ */
+int ntb_default_peer_port_number(struct ntb_dev *ntb, int pidx);
+
+/**
+ * ntb_default_peer_port_idx() - get the default peer device port index by
+ *				 given port number
+ * @ntb:	NTB device context.
+ * @port:	Peer port number (should be one of enum ntb_default_port).
+ *
+ * By default hardware driver supports just one peer device, so while
+ * specified port-argument indicates peer port from enum ntb_default_port,
+ * the return value shall be zero.
+ *
+ * NOTE Don't call this method directly. The ntb_peer_port_idx() function
+ * should be used instead.
+ *
+ * Return: the peer port index or negative value indicating an error
+ */
+int ntb_default_peer_port_idx(struct ntb_dev *ntb, int port);
+
+/**
+ * ntb_port_number() - get the local port number
+ * @ntb:	NTB device context.
+ *
+ * Hardware must support at least simple two-ports ntb connection
+ *
+ * Return: the local port number
  */
-static inline int ntb_mw_count(struct ntb_dev *ntb)
+static inline int ntb_port_number(struct ntb_dev *ntb)
 {
-	return ntb->ops->mw_count(ntb);
+	if (!ntb->ops->port_number)
+		return ntb_default_port_number(ntb);
+
+	return ntb->ops->port_number(ntb);
 }
 
 /**
- * ntb_mw_get_range() - get the range of a memory window
+ * ntb_peer_port_count() - get the number of peer device ports
  * @ntb:	NTB device context.
- * @idx:	Memory window number.
- * @base:	OUT - the base address for mapping the memory window
- * @size:	OUT - the size for mapping the memory window
- * @align:	OUT - the base alignment for translating the memory window
- * @align_size:	OUT - the size alignment for translating the memory window
  *
- * Get the range of a memory window.  NULL may be given for any output
- * parameter if the value is not needed.  The base and size may be used for
- * mapping the memory window, to access the peer memory.  The alignment and
- * size may be used for translating the memory window, for the peer to access
- * memory on the local system.
+ * Hardware may support an access to memory of several remote domains
+ * over multi-port NTB devices. This method returns the number of peers,
+ * local device can have shared memory with.
  *
- * Return: Zero on success, otherwise an error number.
+ * Return: the number of peer ports
  */
-static inline int ntb_mw_get_range(struct ntb_dev *ntb, int idx,
-				   phys_addr_t *base, resource_size_t *size,
-		resource_size_t *align, resource_size_t *align_size)
+static inline int ntb_peer_port_count(struct ntb_dev *ntb)
 {
-	return ntb->ops->mw_get_range(ntb, idx, base, size,
-			align, align_size);
+	if (!ntb->ops->peer_port_count)
+		return ntb_default_peer_port_count(ntb);
+
+	return ntb->ops->peer_port_count(ntb);
 }
 
 /**
- * ntb_mw_set_trans() - set the translation of a memory window
+ * ntb_peer_port_number() - get the peer port by given index
  * @ntb:	NTB device context.
- * @idx:	Memory window number.
- * @addr:	The dma address local memory to expose to the peer.
- * @size:	The size of the local memory to expose to the peer.
+ * @pidx:	Peer port index.
  *
- * Set the translation of a memory window.  The peer may access local memory
- * through the window starting at the address, up to the size.  The address
- * must be aligned to the alignment specified by ntb_mw_get_range().  The size
- * must be aligned to the size alignment specified by ntb_mw_get_range().
+ * Peer ports are continuously enumerated by NTB API logic, so this method
+ * lets to retrieve port real number by its index.
  *
- * Return: Zero on success, otherwise an error number.
+ * Return: the peer device port or negative value indicating an error
  */
-static inline int ntb_mw_set_trans(struct ntb_dev *ntb, int idx,
-				   dma_addr_t addr, resource_size_t size)
+static inline int ntb_peer_port_number(struct ntb_dev *ntb, int pidx)
 {
-	return ntb->ops->mw_set_trans(ntb, idx, addr, size);
+	if (!ntb->ops->peer_port_number)
+		return ntb_default_peer_port_number(ntb, pidx);
+
+	return ntb->ops->peer_port_number(ntb, pidx);
 }
 
 /**
- * ntb_mw_clear_trans() - clear the translation of a memory window
+ * ntb_peer_port_idx() - get the peer device port index by given port number
  * @ntb:	NTB device context.
- * @idx:	Memory window number.
+ * @port:	Peer port number.
  *
- * Clear the translation of a memory window.  The peer may no longer access
- * local memory through the window.
+ * Inverse operation of ntb_peer_port_number(), so one can get port index
+ * by specified port number.
  *
- * Return: Zero on success, otherwise an error number.
+ * Return: the peer port index or negative value indicating an error
  */
-static inline int ntb_mw_clear_trans(struct ntb_dev *ntb, int idx)
+static inline int ntb_peer_port_idx(struct ntb_dev *ntb, int port)
 {
-	if (!ntb->ops->mw_clear_trans)
-		return ntb->ops->mw_set_trans(ntb, idx, 0, 0);
+	if (!ntb->ops->peer_port_idx)
+		return ntb_default_peer_port_idx(ntb, port);
 
-	return ntb->ops->mw_clear_trans(ntb, idx);
+	return ntb->ops->peer_port_idx(ntb, port);
 }
 
 /**
@@ -526,25 +674,26 @@ static inline int ntb_mw_clear_trans(struct ntb_dev *ntb, int idx)
  * state once after every link event.  It is safe to query the link state in
  * the context of the link event callback.
  *
- * Return: One if the link is up, zero if the link is down, otherwise a
- *		negative value indicating the error number.
+ * Return: bitfield of indexed ports link state: bit is set/cleared if the
+ *         link is up/down respectively.
  */
-static inline int ntb_link_is_up(struct ntb_dev *ntb,
+static inline u64 ntb_link_is_up(struct ntb_dev *ntb,
 				 enum ntb_speed *speed, enum ntb_width *width)
 {
 	return ntb->ops->link_is_up(ntb, speed, width);
 }
 
 /**
- * ntb_link_enable() - enable the link on the secondary side of the ntb
+ * ntb_link_enable() - enable the local port ntb connection
  * @ntb:	NTB device context.
  * @max_speed:	The maximum link speed expressed as PCIe generation number.
  * @max_width:	The maximum link width expressed as the number of PCIe lanes.
  *
- * Enable the link on the secondary side of the ntb.  This can only be done
- * from the primary side of the ntb in primary or b2b topology.  The ntb device
- * should train the link to its maximum speed and width, or the requested speed
- * and width, whichever is smaller, if supported.
+ * Enable the NTB/PCIe link on the local or remote (for bridge-to-bridge
+ * topology) side of the bridge. If it's supported the ntb device should train
+ * the link to its maximum speed and width, or the requested speed and width,
+ * whichever is smaller. Some hardware doesn't support PCIe link training, so
+ * the last two arguments will be ignored then.
  *
  * Return: Zero on success, otherwise an error number.
  */
@@ -556,14 +705,14 @@ static inline int ntb_link_enable(struct ntb_dev *ntb,
 }
 
 /**
- * ntb_link_disable() - disable the link on the secondary side of the ntb
+ * ntb_link_disable() - disable the local port ntb connection
  * @ntb:	NTB device context.
  *
- * Disable the link on the secondary side of the ntb.  This can only be
- * done from the primary side of the ntb in primary or b2b topology.  The ntb
- * device should disable the link.  Returning from this call must indicate that
- * a barrier has passed, though with no more writes may pass in either
- * direction across the link, except if this call returns an error number.
+ * Disable the link on the local or remote (for b2b topology) of the ntb.
+ * The ntb device should disable the link.  Returning from this call must
+ * indicate that a barrier has passed, though with no more writes may pass in
+ * either direction across the link, except if this call returns an error
+ * number.
  *
  * Return: Zero on success, otherwise an error number.
  */
@@ -573,6 +722,183 @@ static inline int ntb_link_disable(struct ntb_dev *ntb)
 }
 
 /**
+ * ntb_mw_count() - get the number of inbound memory windows, which could
+ *                  be created for a specified peer device
+ * @ntb:	NTB device context.
+ * @pidx:	Port index of peer device.
+ *
+ * Hardware and topology may support a different number of memory windows.
+ * Moreover different peer devices can support different number of memory
+ * windows. Simply speaking this method returns the number of possible inbound
+ * memory windows to share with specified peer device.
+ *
+ * Return: the number of memory windows.
+ */
+static inline int ntb_mw_count(struct ntb_dev *ntb, int pidx)
+{
+	return ntb->ops->mw_count(ntb, pidx);
+}
+
+/**
+ * ntb_mw_get_align() - get the restriction parameters of inbound memory window
+ * @ntb:	NTB device context.
+ * @pidx:	Port index of peer device.
+ * @widx:	Memory window index.
+ * @addr_align:	OUT - the base alignment for translating the memory window
+ * @size_align:	OUT - the size alignment for translating the memory window
+ * @size_max:	OUT - the maximum size of the memory window
+ *
+ * Get the alignments of an inbound memory window with specified index.
+ * NULL may be given for any output parameter if the value is not needed.
+ * The alignment and size parameters may be used for allocation of proper
+ * shared memory.
+ *
+ * Return: Zero on success, otherwise a negative error number.
+ */
+static inline int ntb_mw_get_align(struct ntb_dev *ntb, int pidx, int widx,
+				   resource_size_t *addr_align,
+				   resource_size_t *size_align,
+				   resource_size_t *size_max)
+{
+	return ntb->ops->mw_get_align(ntb, pidx, widx, addr_align, size_align,
+				      size_max);
+}
+
+/**
+ * ntb_mw_set_trans() - set the translation of an inbound memory window
+ * @ntb:	NTB device context.
+ * @pidx:	Port index of peer device.
+ * @widx:	Memory window index.
+ * @addr:	The dma address of local memory to expose to the peer.
+ * @size:	The size of the local memory to expose to the peer.
+ *
+ * Set the translation of a memory window.  The peer may access local memory
+ * through the window starting at the address, up to the size.  The address
+ * and size must be aligned in compliance with restrictions of
+ * ntb_mw_get_align(). The region size should not exceed the size_max parameter
+ * of that method.
+ *
+ * This method may not be implemented due to the hardware specific memory
+ * windows interface.
+ *
+ * Return: Zero on success, otherwise an error number.
+ */
+static inline int ntb_mw_set_trans(struct ntb_dev *ntb, int pidx, int widx,
+				   dma_addr_t addr, resource_size_t size)
+{
+	if (!ntb->ops->mw_set_trans)
+		return 0;
+
+	return ntb->ops->mw_set_trans(ntb, pidx, widx, addr, size);
+}
+
+/**
+ * ntb_mw_clear_trans() - clear the translation address of an inbound memory
+ *                        window
+ * @ntb:	NTB device context.
+ * @pidx:	Port index of peer device.
+ * @widx:	Memory window index.
+ *
+ * Clear the translation of an inbound memory window.  The peer may no longer
+ * access local memory through the window.
+ *
+ * Return: Zero on success, otherwise an error number.
+ */
+static inline int ntb_mw_clear_trans(struct ntb_dev *ntb, int pidx, int widx)
+{
+	if (!ntb->ops->mw_clear_trans)
+		return ntb_mw_set_trans(ntb, pidx, widx, 0, 0);
+
+	return ntb->ops->mw_clear_trans(ntb, pidx, widx);
+}
+
+/**
+ * ntb_peer_mw_count() - get the number of outbound memory windows, which could
+ *                       be mapped to access a shared memory
+ * @ntb:	NTB device context.
+ *
+ * Hardware and topology may support a different number of memory windows.
+ * This method returns the number of outbound memory windows supported by
+ * local device.
+ *
+ * Return: the number of memory windows.
+ */
+static inline int ntb_peer_mw_count(struct ntb_dev *ntb)
+{
+	return ntb->ops->peer_mw_count(ntb);
+}
+
+/**
+ * ntb_peer_mw_get_addr() - get map address of an outbound memory window
+ * @ntb:	NTB device context.
+ * @widx:	Memory window index (within ntb_peer_mw_count() return value).
+ * @base:	OUT - the base address of mapping region.
+ * @size:	OUT - the size of mapping region.
+ *
+ * Get base and size of memory region to map.  NULL may be given for any output
+ * parameter if the value is not needed.  The base and size may be used for
+ * mapping the memory window, to access the peer memory.
+ *
+ * Return: Zero on success, otherwise a negative error number.
+ */
+static inline int ntb_peer_mw_get_addr(struct ntb_dev *ntb, int widx,
+				      phys_addr_t *base, resource_size_t *size)
+{
+	return ntb->ops->peer_mw_get_addr(ntb, widx, base, size);
+}
+
+/**
+ * ntb_peer_mw_set_trans() - set a translation address of a memory window
+ *                           retrieved from a peer device
+ * @ntb:	NTB device context.
+ * @pidx:	Port index of peer device the translation address received from.
+ * @widx:	Memory window index.
+ * @addr:	The dma address of the shared memory to access.
+ * @size:	The size of the shared memory to access.
+ *
+ * Set the translation of an outbound memory window.  The local device may
+ * access shared memory allocated by a peer device sent the address.
+ *
+ * This method may not be implemented due to the hardware specific memory
+ * windows interface, so a translation address can be only set on the side,
+ * where shared memory (inbound memory windows) is allocated.
+ *
+ * Return: Zero on success, otherwise an error number.
+ */
+static inline int ntb_peer_mw_set_trans(struct ntb_dev *ntb, int pidx, int widx,
+					u64 addr, resource_size_t size)
+{
+	if (!ntb->ops->peer_mw_set_trans)
+		return 0;
+
+	return ntb->ops->peer_mw_set_trans(ntb, pidx, widx, addr, size);
+}
+
+/**
+ * ntb_peer_mw_clear_trans() - clear the translation address of an outbound
+ *                             memory window
+ * @ntb:	NTB device context.
+ * @pidx:	Port index of peer device.
+ * @widx:	Memory window index.
+ *
+ * Clear the translation of a outbound memory window.  The local device may no
+ * longer access a shared memory through the window.
+ *
+ * This method may not be implemented due to the hardware specific memory
+ * windows interface.
+ *
+ * Return: Zero on success, otherwise an error number.
+ */
+static inline int ntb_peer_mw_clear_trans(struct ntb_dev *ntb, int pidx,
+					  int widx)
+{
+	if (!ntb->ops->peer_mw_clear_trans)
+		return ntb_peer_mw_set_trans(ntb, pidx, widx, 0, 0);
+
+	return ntb->ops->peer_mw_clear_trans(ntb, pidx, widx);
+}
+
+/**
  * ntb_db_is_unsafe() - check if it is safe to use hardware doorbell
  * @ntb:	NTB device context.
  *
@@ -900,47 +1226,58 @@ static inline int ntb_spad_is_unsafe(struct ntb_dev *ntb)
  * @ntb:	NTB device context.
  *
  * Hardware and topology may support a different number of scratchpads.
+ * Although it must be the same for all ports per NTB device.
  *
  * Return: the number of scratchpads.
  */
 static inline int ntb_spad_count(struct ntb_dev *ntb)
 {
+	if (!ntb->ops->spad_count)
+		return 0;
+
 	return ntb->ops->spad_count(ntb);
 }
 
 /**
  * ntb_spad_read() - read the local scratchpad register
  * @ntb:	NTB device context.
- * @idx:	Scratchpad index.
+ * @sidx:	Scratchpad index.
  *
  * Read the local scratchpad register, and return the value.
  *
  * Return: The value of the local scratchpad register.
  */
-static inline u32 ntb_spad_read(struct ntb_dev *ntb, int idx)
+static inline u32 ntb_spad_read(struct ntb_dev *ntb, int sidx)
 {
-	return ntb->ops->spad_read(ntb, idx);
+	if (!ntb->ops->spad_read)
+		return ~(u32)0;
+
+	return ntb->ops->spad_read(ntb, sidx);
 }
 
 /**
  * ntb_spad_write() - write the local scratchpad register
  * @ntb:	NTB device context.
- * @idx:	Scratchpad index.
+ * @sidx:	Scratchpad index.
  * @val:	Scratchpad value.
  *
  * Write the value to the local scratchpad register.
  *
  * Return: Zero on success, otherwise an error number.
  */
-static inline int ntb_spad_write(struct ntb_dev *ntb, int idx, u32 val)
+static inline int ntb_spad_write(struct ntb_dev *ntb, int sidx, u32 val)
 {
-	return ntb->ops->spad_write(ntb, idx, val);
+	if (!ntb->ops->spad_write)
+		return -EINVAL;
+
+	return ntb->ops->spad_write(ntb, sidx, val);
 }
 
 /**
  * ntb_peer_spad_addr() - address of the peer scratchpad register
  * @ntb:	NTB device context.
- * @idx:	Scratchpad index.
+ * @pidx:	Port index of peer device.
+ * @sidx:	Scratchpad index.
  * @spad_addr:	OUT - The address of the peer scratchpad register.
  *
  * Return the address of the peer doorbell register.  This may be used, for
@@ -948,45 +1285,213 @@ static inline int ntb_spad_write(struct ntb_dev *ntb, int idx, u32 val)
  *
  * Return: Zero on success, otherwise an error number.
  */
-static inline int ntb_peer_spad_addr(struct ntb_dev *ntb, int idx,
+static inline int ntb_peer_spad_addr(struct ntb_dev *ntb, int pidx, int sidx,
 				     phys_addr_t *spad_addr)
 {
 	if (!ntb->ops->peer_spad_addr)
 		return -EINVAL;
 
-	return ntb->ops->peer_spad_addr(ntb, idx, spad_addr);
+	return ntb->ops->peer_spad_addr(ntb, pidx, sidx, spad_addr);
 }
 
 /**
  * ntb_peer_spad_read() - read the peer scratchpad register
  * @ntb:	NTB device context.
- * @idx:	Scratchpad index.
+ * @pidx:	Port index of peer device.
+ * @sidx:	Scratchpad index.
  *
  * Read the peer scratchpad register, and return the value.
  *
  * Return: The value of the local scratchpad register.
  */
-static inline u32 ntb_peer_spad_read(struct ntb_dev *ntb, int idx)
+static inline u32 ntb_peer_spad_read(struct ntb_dev *ntb, int pidx, int sidx)
 {
 	if (!ntb->ops->peer_spad_read)
-		return 0;
+		return ~(u32)0;
 
-	return ntb->ops->peer_spad_read(ntb, idx);
+	return ntb->ops->peer_spad_read(ntb, pidx, sidx);
 }
 
 /**
  * ntb_peer_spad_write() - write the peer scratchpad register
  * @ntb:	NTB device context.
- * @idx:	Scratchpad index.
+ * @pidx:	Port index of peer device.
+ * @sidx:	Scratchpad index.
  * @val:	Scratchpad value.
  *
  * Write the value to the peer scratchpad register.
  *
  * Return: Zero on success, otherwise an error number.
  */
-static inline int ntb_peer_spad_write(struct ntb_dev *ntb, int idx, u32 val)
+static inline int ntb_peer_spad_write(struct ntb_dev *ntb, int pidx, int sidx,
+				      u32 val)
+{
+	if (!ntb->ops->peer_spad_write)
+		return -EINVAL;
+
+	return ntb->ops->peer_spad_write(ntb, pidx, sidx, val);
+}
+
+/**
+ * ntb_msg_count() - get the number of message registers
+ * @ntb:	NTB device context.
+ *
+ * Hardware may support a different number of message registers.
+ *
+ * Return: the number of message registers.
+ */
+static inline int ntb_msg_count(struct ntb_dev *ntb)
+{
+	if (!ntb->ops->msg_count)
+		return 0;
+
+	return ntb->ops->msg_count(ntb);
+}
+
+/**
+ * ntb_msg_inbits() - get a bitfield of inbound message registers status
+ * @ntb:	NTB device context.
+ *
+ * The method returns the bitfield of status and mask registers, which related
+ * to inbound message registers.
+ *
+ * Return: bitfield of inbound message registers.
+ */
+static inline u64 ntb_msg_inbits(struct ntb_dev *ntb)
 {
-	return ntb->ops->peer_spad_write(ntb, idx, val);
+	if (!ntb->ops->msg_inbits)
+		return 0;
+
+	return ntb->ops->msg_inbits(ntb);
+}
+
+/**
+ * ntb_msg_outbits() - get a bitfield of outbound message registers status
+ * @ntb:	NTB device context.
+ *
+ * The method returns the bitfield of status and mask registers, which related
+ * to outbound message registers.
+ *
+ * Return: bitfield of outbound message registers.
+ */
+static inline u64 ntb_msg_outbits(struct ntb_dev *ntb)
+{
+	if (!ntb->ops->msg_outbits)
+		return 0;
+
+	return ntb->ops->msg_outbits(ntb);
+}
+
+/**
+ * ntb_msg_read_sts() - read the message registers status
+ * @ntb:	NTB device context.
+ *
+ * Read the status of message register. Inbound and outbound message registers
+ * related bits can be filtered by masks retrieved from ntb_msg_inbits() and
+ * ntb_msg_outbits().
+ *
+ * Return: status bits of message registers
+ */
+static inline u64 ntb_msg_read_sts(struct ntb_dev *ntb)
+{
+	if (!ntb->ops->msg_read_sts)
+		return 0;
+
+	return ntb->ops->msg_read_sts(ntb);
+}
+
+/**
+ * ntb_msg_clear_sts() - clear status bits of message registers
+ * @ntb:	NTB device context.
+ * @sts_bits:	Status bits to clear.
+ *
+ * Clear bits in the status register.
+ *
+ * Return: Zero on success, otherwise a negative error number.
+ */
+static inline int ntb_msg_clear_sts(struct ntb_dev *ntb, u64 sts_bits)
+{
+	if (!ntb->ops->msg_clear_sts)
+		return -EINVAL;
+
+	return ntb->ops->msg_clear_sts(ntb, sts_bits);
+}
+
+/**
+ * ntb_msg_set_mask() - set mask of message register status bits
+ * @ntb:	NTB device context.
+ * @mask_bits:	Mask bits.
+ *
+ * Mask the message registers status bits from raising the message event.
+ *
+ * Return: Zero on success, otherwise a negative error number.
+ */
+static inline int ntb_msg_set_mask(struct ntb_dev *ntb, u64 mask_bits)
+{
+	if (!ntb->ops->msg_set_mask)
+		return -EINVAL;
+
+	return ntb->ops->msg_set_mask(ntb, mask_bits);
+}
+
+/**
+ * ntb_msg_clear_mask() - clear message registers mask
+ * @ntb:	NTB device context.
+ * @mask_bits:	Mask bits to clear.
+ *
+ * Clear bits in the message events mask register.
+ *
+ * Return: Zero on success, otherwise a negative error number.
+ */
+static inline int ntb_msg_clear_mask(struct ntb_dev *ntb, u64 mask_bits)
+{
+	if (!ntb->ops->msg_clear_mask)
+		return -EINVAL;
+
+	return ntb->ops->msg_clear_mask(ntb, mask_bits);
+}
+
+/**
+ * ntb_msg_read() - read message register with specified index
+ * @ntb:	NTB device context.
+ * @midx:	Message register index
+ * @pidx:	OUT - Port index of peer device a message retrieved from
+ * @msg:	OUT - Data
+ *
+ * Read data from the specified message register. Source port index of a
+ * message is retrieved as well.
+ *
+ * Return: Zero on success, otherwise a negative error number.
+ */
+static inline int ntb_msg_read(struct ntb_dev *ntb, int midx, int *pidx,
+			       u32 *msg)
+{
+	if (!ntb->ops->msg_read)
+		return -EINVAL;
+
+	return ntb->ops->msg_read(ntb, midx, pidx, msg);
+}
+
+/**
+ * ntb_msg_write() - write data to the specified message register
+ * @ntb:	NTB device context.
+ * @midx:	Message register index
+ * @pidx:	Port index of peer device a message being sent to
+ * @msg:	Data to send
+ *
+ * Send data to a specified peer device using the defined message register.
+ * Message event can be raised if the midx registers isn't empty while
+ * calling this method and the corresponding interrupt isn't masked.
+ *
+ * Return: Zero on success, otherwise a negative error number.
+ */
+static inline int ntb_msg_write(struct ntb_dev *ntb, int midx, int pidx,
+				u32 msg)
+{
+	if (!ntb->ops->msg_write)
+		return -EINVAL;
+
+	return ntb->ops->msg_write(ntb, midx, pidx, msg);
 }
 
 #endif
diff --git a/include/linux/nvme-fc-driver.h b/include/linux/nvme-fc-driver.h
index 6c8c5d8041b7..2591878c1d48 100644
--- a/include/linux/nvme-fc-driver.h
+++ b/include/linux/nvme-fc-driver.h
@@ -346,6 +346,11 @@ struct nvme_fc_remote_port {
  *       indicating an FC transport Aborted status.
  *       Entrypoint is Mandatory.
  *
+ * @defer_rcv:  Called by the transport to signal the LLLD that it has
+ *       begun processing of a previously received NVME CMD IU. The LLDD
+ *       is now free to re-use the rcv buffer associated with the
+ *       nvmefc_tgt_fcp_req.
+ *
  * @max_hw_queues:  indicates the maximum number of hw queues the LLDD
  *       supports for cpu affinitization.
  *       Value is Mandatory. Must be at least 1.
@@ -846,6 +851,8 @@ struct nvmet_fc_target_template {
 				struct nvmefc_tgt_fcp_req *fcpreq);
 	void (*fcp_req_release)(struct nvmet_fc_target_port *tgtport,
 				struct nvmefc_tgt_fcp_req *fcpreq);
+	void (*defer_rcv)(struct nvmet_fc_target_port *tgtport,
+				struct nvmefc_tgt_fcp_req *fcpreq);
 
 	u32	max_hw_queues;
 	u16	max_sgl_segments;
diff --git a/include/linux/nvme-fc.h b/include/linux/nvme-fc.h
index 21c37e39e41a..36cca93a5ff2 100644
--- a/include/linux/nvme-fc.h
+++ b/include/linux/nvme-fc.h
@@ -334,5 +334,24 @@ struct fcnvme_ls_disconnect_acc {
 #define NVME_FC_LS_TIMEOUT_SEC		2		/* 2 seconds */
 #define NVME_FC_TGTOP_TIMEOUT_SEC	2		/* 2 seconds */
 
+/*
+ * TRADDR string must be of form "nn-<16hexdigits>:pn-<16hexdigits>"
+ * the string is allowed to be specified with or without a "0x" prefix
+ * infront of the <16hexdigits>.  Without is considered the "min" string
+ * and with is considered the "max" string. The hexdigits may be upper
+ * or lower case.
+ */
+#define NVME_FC_TRADDR_NNLEN		3	/* "?n-" */
+#define NVME_FC_TRADDR_OXNNLEN		5	/* "?n-0x" */
+#define NVME_FC_TRADDR_HEXNAMELEN	16
+#define NVME_FC_TRADDR_MINLENGTH	\
+		(2 * (NVME_FC_TRADDR_NNLEN + NVME_FC_TRADDR_HEXNAMELEN) + 1)
+#define NVME_FC_TRADDR_MAXLENGTH	\
+		(2 * (NVME_FC_TRADDR_OXNNLEN + NVME_FC_TRADDR_HEXNAMELEN) + 1)
+#define NVME_FC_TRADDR_MIN_PN_OFFSET	\
+		(NVME_FC_TRADDR_NNLEN + NVME_FC_TRADDR_HEXNAMELEN + 1)
+#define NVME_FC_TRADDR_MAX_PN_OFFSET	\
+		(NVME_FC_TRADDR_OXNNLEN + NVME_FC_TRADDR_HEXNAMELEN + 1)
+
 
 #endif /* _NVME_FC_H */
diff --git a/include/linux/nvme.h b/include/linux/nvme.h
index 6b8ee9e628e1..25d8225dbd04 100644
--- a/include/linux/nvme.h
+++ b/include/linux/nvme.h
@@ -963,14 +963,14 @@ struct nvme_dbbuf {
 };
 
 struct streams_directive_params {
-	__u16	msl;
-	__u16	nssa;
-	__u16	nsso;
+	__le16	msl;
+	__le16	nssa;
+	__le16	nsso;
 	__u8	rsvd[10];
-	__u32	sws;
-	__u16	sgs;
-	__u16	nsa;
-	__u16	nso;
+	__le32	sws;
+	__le16	sgs;
+	__le16	nsa;
+	__le16	nso;
 	__u8	rsvd2[6];
 };
 
@@ -1006,7 +1006,7 @@ static inline bool nvme_is_write(struct nvme_command *cmd)
 	 * Why can't we simply have a Fabrics In and Fabrics out command?
 	 */
 	if (unlikely(cmd->common.opcode == nvme_fabrics_command))
-		return cmd->fabrics.opcode & 1;
+		return cmd->fabrics.fctype & 1;
 	return cmd->common.opcode & 1;
 }
 
diff --git a/include/linux/nvmem-provider.h b/include/linux/nvmem-provider.h
index cd93416d762e..497706f5adca 100644
--- a/include/linux/nvmem-provider.h
+++ b/include/linux/nvmem-provider.h
@@ -12,6 +12,9 @@
 #ifndef _LINUX_NVMEM_PROVIDER_H
 #define _LINUX_NVMEM_PROVIDER_H
 
+#include <linux/err.h>
+#include <linux/errno.h>
+
 struct nvmem_device;
 struct nvmem_cell_info;
 typedef int (*nvmem_reg_read_t)(void *priv, unsigned int offset,
diff --git a/include/linux/once.h b/include/linux/once.h
index 285f12cb40e6..9c98aaa87cbc 100644
--- a/include/linux/once.h
+++ b/include/linux/once.h
@@ -53,5 +53,7 @@ void __do_once_done(bool *done, struct static_key *once_key,
 
 #define get_random_once(buf, nbytes)					     \
 	DO_ONCE(get_random_bytes, (buf), (nbytes))
+#define get_random_once_wait(buf, nbytes)                                    \
+	DO_ONCE(get_random_bytes_wait, (buf), (nbytes))                      \
 
 #endif /* _LINUX_ONCE_H */
diff --git a/include/linux/oom.h b/include/linux/oom.h
index 8a266e2be5a6..76aac4ce39bc 100644
--- a/include/linux/oom.h
+++ b/include/linux/oom.h
@@ -6,6 +6,8 @@
 #include <linux/types.h>
 #include <linux/nodemask.h>
 #include <uapi/linux/oom.h>
+#include <linux/sched/coredump.h> /* MMF_* */
+#include <linux/mm.h> /* VM_FAULT* */
 
 struct zonelist;
 struct notifier_block;
@@ -63,6 +65,26 @@ static inline bool tsk_is_oom_victim(struct task_struct * tsk)
 	return tsk->signal->oom_mm;
 }
 
+/*
+ * Checks whether a page fault on the given mm is still reliable.
+ * This is no longer true if the oom reaper started to reap the
+ * address space which is reflected by MMF_UNSTABLE flag set in
+ * the mm. At that moment any !shared mapping would lose the content
+ * and could cause a memory corruption (zero pages instead of the
+ * original content).
+ *
+ * User should call this before establishing a page table entry for
+ * a !shared mapping and under the proper page table lock.
+ *
+ * Return 0 when the PF is safe VM_FAULT_SIGBUS otherwise.
+ */
+static inline int check_stable_address_space(struct mm_struct *mm)
+{
+	if (unlikely(test_bit(MMF_UNSTABLE, &mm->flags)))
+		return VM_FAULT_SIGBUS;
+	return 0;
+}
+
 extern unsigned long oom_badness(struct task_struct *p,
 		struct mem_cgroup *memcg, const nodemask_t *nodemask,
 		unsigned long totalpages);
diff --git a/include/linux/pagemap.h b/include/linux/pagemap.h
index baa9344dcd10..79b36f57c3ba 100644
--- a/include/linux/pagemap.h
+++ b/include/linux/pagemap.h
@@ -163,8 +163,6 @@ void release_pages(struct page **pages, int nr, bool cold);
  */
 static inline int page_cache_get_speculative(struct page *page)
 {
-	VM_BUG_ON(in_interrupt());
-
 #ifdef CONFIG_TINY_RCU
 # ifdef CONFIG_PREEMPT_COUNT
 	VM_BUG_ON(!in_atomic() && !irqs_disabled());
diff --git a/include/linux/path.h b/include/linux/path.h
index d1372186f431..cde895cc4af4 100644
--- a/include/linux/path.h
+++ b/include/linux/path.h
@@ -7,7 +7,7 @@ struct vfsmount;
 struct path {
 	struct vfsmount *mnt;
 	struct dentry *dentry;
-};
+} __randomize_layout;
 
 extern void path_get(const struct path *);
 extern void path_put(const struct path *);
diff --git a/include/linux/pci.h b/include/linux/pci.h
index 4869e66dd659..f958d0732af6 100644
--- a/include/linux/pci.h
+++ b/include/linux/pci.h
@@ -188,6 +188,8 @@ enum pci_dev_flags {
 	 * the direct_complete optimization.
 	 */
 	PCI_DEV_FLAGS_NEEDS_RESUME = (__force pci_dev_flags_t) (1 << 11),
+	/* Don't use Relaxed Ordering for TLPs directed at this device */
+	PCI_DEV_FLAGS_NO_RELAXED_ORDERING = (__force pci_dev_flags_t) (1 << 12),
 };
 
 enum pci_irq_reroute_variant {
@@ -1067,6 +1069,7 @@ void pcie_flr(struct pci_dev *dev);
 int __pci_reset_function(struct pci_dev *dev);
 int __pci_reset_function_locked(struct pci_dev *dev);
 int pci_reset_function(struct pci_dev *dev);
+int pci_reset_function_locked(struct pci_dev *dev);
 int pci_try_reset_function(struct pci_dev *dev);
 int pci_probe_reset_slot(struct pci_slot *slot);
 int pci_reset_slot(struct pci_slot *slot);
@@ -1125,6 +1128,7 @@ bool pci_check_pme_status(struct pci_dev *dev);
 void pci_pme_wakeup_bus(struct pci_bus *bus);
 void pci_d3cold_enable(struct pci_dev *dev);
 void pci_d3cold_disable(struct pci_dev *dev);
+bool pcie_relaxed_ordering_enabled(struct pci_dev *dev);
 
 /* PCI Virtual Channel */
 int pci_save_vc_state(struct pci_dev *dev);
diff --git a/include/linux/perf/arm_pmu.h b/include/linux/perf/arm_pmu.h
index 1360dd6d5e61..af0f44effd44 100644
--- a/include/linux/perf/arm_pmu.h
+++ b/include/linux/perf/arm_pmu.h
@@ -24,10 +24,14 @@
  *	interrupt and passed the address of the low level handler,
  *	and can be used to implement any platform specific handling
  *	before or after calling it.
+ *
+ * @irq_flags: if non-zero, these flags will be passed to request_irq
+ *             when requesting interrupts for this PMU device.
  */
 struct arm_pmu_platdata {
 	irqreturn_t (*handle_irq)(int irq, void *dev,
 				  irq_handler_t pmu_handler);
+	unsigned long irq_flags;
 };
 
 #ifdef CONFIG_ARM_PMU
diff --git a/include/linux/perf_event.h b/include/linux/perf_event.h
index a3b873fc59e4..b14095bcf4bb 100644
--- a/include/linux/perf_event.h
+++ b/include/linux/perf_event.h
@@ -310,8 +310,8 @@ struct pmu {
 	 * Notification that the event was mapped or unmapped.  Called
 	 * in the context of the mapping task.
 	 */
-	void (*event_mapped)		(struct perf_event *event); /*optional*/
-	void (*event_unmapped)		(struct perf_event *event); /*optional*/
+	void (*event_mapped)		(struct perf_event *event, struct mm_struct *mm); /* optional */
+	void (*event_unmapped)		(struct perf_event *event, struct mm_struct *mm); /* optional */
 
 	/*
 	 * Flags for ->add()/->del()/ ->start()/->stop(). There are
diff --git a/include/linux/phy.h b/include/linux/phy.h
index 2a9567bb8186..0bb5b212ab42 100644
--- a/include/linux/phy.h
+++ b/include/linux/phy.h
@@ -830,7 +830,7 @@ static inline int phy_read_status(struct phy_device *phydev)
 	dev_err(&_phydev->mdio.dev, format, ##args)
 
 #define phydev_dbg(_phydev, format, args...)	\
-	dev_dbg(&_phydev->mdio.dev, format, ##args);
+	dev_dbg(&_phydev->mdio.dev, format, ##args)
 
 static inline const char *phydev_name(const struct phy_device *phydev)
 {
diff --git a/include/linux/pid.h b/include/linux/pid.h
index 4d179316e431..719582744a2e 100644
--- a/include/linux/pid.h
+++ b/include/linux/pid.h
@@ -8,7 +8,9 @@ enum pid_type
 	PIDTYPE_PID,
 	PIDTYPE_PGID,
 	PIDTYPE_SID,
-	PIDTYPE_MAX
+	PIDTYPE_MAX,
+	/* only valid to __task_pid_nr_ns() */
+	__PIDTYPE_TGID
 };
 
 /*
diff --git a/include/linux/pid_namespace.h b/include/linux/pid_namespace.h
index c2a989dee876..b09136f88cf4 100644
--- a/include/linux/pid_namespace.h
+++ b/include/linux/pid_namespace.h
@@ -52,7 +52,7 @@ struct pid_namespace {
 	int hide_pid;
 	int reboot;	/* group exit code if this pidns was rebooted */
 	struct ns_common ns;
-};
+} __randomize_layout;
 
 extern struct pid_namespace init_pid_ns;
 
diff --git a/include/linux/pinctrl/pinconf-generic.h b/include/linux/pinctrl/pinconf-generic.h
index 231d3075815a..e91d1b6a260d 100644
--- a/include/linux/pinctrl/pinconf-generic.h
+++ b/include/linux/pinctrl/pinconf-generic.h
@@ -81,8 +81,8 @@
  * 	it.
  * @PIN_CONFIG_OUTPUT: this will configure the pin as an output and drive a
  * 	value on the line. Use argument 1 to indicate high level, argument 0 to
- * 	indicate low level. (Please see Documentation/pinctrl.txt, section
- * 	"GPIO mode pitfalls" for a discussion around this parameter.)
+ *	indicate low level. (Please see Documentation/driver-api/pinctl.rst,
+ *	section "GPIO mode pitfalls" for a discussion around this parameter.)
  * @PIN_CONFIG_POWER_SOURCE: if the pin can select between different power
  *	supplies, the argument to this parameter (on a custom format) tells
  *	the driver which alternative power source to use.
diff --git a/include/linux/platform_data/hsmmc-omap.h b/include/linux/platform_data/hsmmc-omap.h
index 8e981be2e2c2..0ff1e0dba720 100644
--- a/include/linux/platform_data/hsmmc-omap.h
+++ b/include/linux/platform_data/hsmmc-omap.h
@@ -55,9 +55,6 @@ struct omap_hsmmc_platform_data {
 	u32 caps;	/* Used for the MMC driver on 2430 and later */
 	u32 pm_caps;	/* PM capabilities of the mmc */
 
-	/* use the internal clock */
-	unsigned internal_clock:1;
-
 	/* nonremovable e.g. eMMC */
 	unsigned nonremovable:1;
 
@@ -73,13 +70,6 @@ struct omap_hsmmc_platform_data {
 	int gpio_cd;			/* gpio (card detect) */
 	int gpio_cod;			/* gpio (cover detect) */
 	int gpio_wp;			/* gpio (write protect) */
-
-	int (*set_power)(struct device *dev, int power_on, int vdd);
-	void (*remux)(struct device *dev, int power_on);
-	/* Call back before enabling / disabling regulators */
-	void (*before_set_reg)(struct device *dev, int power_on, int vdd);
-	/* Call back after enabling / disabling regulators */
-	void (*after_set_reg)(struct device *dev, int power_on, int vdd);
 	/* if we have special card, init it using this callback */
 	void (*init_card)(struct mmc_card *card);
 
diff --git a/include/linux/platform_data/st_sensors_pdata.h b/include/linux/platform_data/st_sensors_pdata.h
index 79b0e4cdb814..f8274b0c6888 100644
--- a/include/linux/platform_data/st_sensors_pdata.h
+++ b/include/linux/platform_data/st_sensors_pdata.h
@@ -17,10 +17,12 @@
  *	Available only for accelerometer and pressure sensors.
  *	Accelerometer DRDY on LSM330 available only on pin 1 (see datasheet).
  * @open_drain: set the interrupt line to be open drain if possible.
+ * @spi_3wire: enable spi-3wire mode.
  */
 struct st_sensors_platform_data {
 	u8 drdy_int_pin;
 	bool open_drain;
+	bool spi_3wire;
 };
 
 #endif /* ST_SENSORS_PDATA_H */
diff --git a/include/linux/platform_data/usb-ohci-s3c2410.h b/include/linux/platform_data/usb-ohci-s3c2410.h
index 7fa1fbefc3f2..cc7554ae6e8b 100644
--- a/include/linux/platform_data/usb-ohci-s3c2410.h
+++ b/include/linux/platform_data/usb-ohci-s3c2410.h
@@ -31,7 +31,7 @@ struct s3c2410_hcd_info {
 	void		(*report_oc)(struct s3c2410_hcd_info *, int ports);
 };
 
-static void inline s3c2410_usb_report_oc(struct s3c2410_hcd_info *info, int ports)
+static inline void s3c2410_usb_report_oc(struct s3c2410_hcd_info *info, int ports)
 {
 	if (info->report_oc != NULL) {
 		(info->report_oc)(info, ports);
diff --git a/include/linux/proc_ns.h b/include/linux/proc_ns.h
index 58ab28d81fc2..06844b54dfc1 100644
--- a/include/linux/proc_ns.h
+++ b/include/linux/proc_ns.h
@@ -21,7 +21,7 @@ struct proc_ns_operations {
 	int (*install)(struct nsproxy *nsproxy, struct ns_common *ns);
 	struct user_namespace *(*owner)(struct ns_common *ns);
 	struct ns_common *(*get_parent)(struct ns_common *ns);
-};
+} __randomize_layout;
 
 extern const struct proc_ns_operations netns_operations;
 extern const struct proc_ns_operations utsns_operations;
diff --git a/include/linux/ptp_clock_kernel.h b/include/linux/ptp_clock_kernel.h
index a026bfd089db..51349d124ee5 100644
--- a/include/linux/ptp_clock_kernel.h
+++ b/include/linux/ptp_clock_kernel.h
@@ -99,6 +99,11 @@ struct system_device_crosststamp;
  *            parameter func: the desired function to use.
  *            parameter chan: the function channel index to use.
  *
+ * @do_work:  Request driver to perform auxiliary (periodic) operations
+ *	      Driver should return delay of the next auxiliary work scheduling
+ *	      time (>=0) or negative value in case further scheduling
+ *	      is not required.
+ *
  * Drivers should embed their ptp_clock_info within a private
  * structure, obtaining a reference to it using container_of().
  *
@@ -126,6 +131,7 @@ struct ptp_clock_info {
 		      struct ptp_clock_request *request, int on);
 	int (*verify)(struct ptp_clock_info *ptp, unsigned int pin,
 		      enum ptp_pin_function func, unsigned int chan);
+	long (*do_aux_work)(struct ptp_clock_info *ptp);
 };
 
 struct ptp_clock;
@@ -211,6 +217,16 @@ extern int ptp_clock_index(struct ptp_clock *ptp);
 int ptp_find_pin(struct ptp_clock *ptp,
 		 enum ptp_pin_function func, unsigned int chan);
 
+/**
+ * ptp_schedule_worker() - schedule ptp auxiliary work
+ *
+ * @ptp:    The clock obtained from ptp_clock_register().
+ * @delay:  number of jiffies to wait before queuing
+ *          See kthread_queue_delayed_work() for more info.
+ */
+
+int ptp_schedule_worker(struct ptp_clock *ptp, unsigned long delay);
+
 #else
 static inline struct ptp_clock *ptp_clock_register(struct ptp_clock_info *info,
 						   struct device *parent)
@@ -225,6 +241,10 @@ static inline int ptp_clock_index(struct ptp_clock *ptp)
 static inline int ptp_find_pin(struct ptp_clock *ptp,
 			       enum ptp_pin_function func, unsigned int chan)
 { return -1; }
+static inline int ptp_schedule_worker(struct ptp_clock *ptp,
+				      unsigned long delay)
+{ return -EOPNOTSUPP; }
+
 #endif
 
 #endif
diff --git a/include/linux/ptr_ring.h b/include/linux/ptr_ring.h
index d8c97ec8a8e6..37b4bb2545b3 100644
--- a/include/linux/ptr_ring.h
+++ b/include/linux/ptr_ring.h
@@ -436,9 +436,9 @@ static inline int ptr_ring_consume_batched_bh(struct ptr_ring *r,
 	__PTR_RING_PEEK_CALL_v; \
 })
 
-static inline void **__ptr_ring_init_queue_alloc(int size, gfp_t gfp)
+static inline void **__ptr_ring_init_queue_alloc(unsigned int size, gfp_t gfp)
 {
-	return kzalloc(ALIGN(size * sizeof(void *), SMP_CACHE_BYTES), gfp);
+	return kcalloc(size, sizeof(void *), gfp);
 }
 
 static inline void __ptr_ring_set_size(struct ptr_ring *r, int size)
@@ -582,7 +582,8 @@ static inline int ptr_ring_resize(struct ptr_ring *r, int size, gfp_t gfp,
  * In particular if you consume ring in interrupt or BH context, you must
  * disable interrupts/BH when doing so.
  */
-static inline int ptr_ring_resize_multiple(struct ptr_ring **rings, int nrings,
+static inline int ptr_ring_resize_multiple(struct ptr_ring **rings,
+					   unsigned int nrings,
 					   int size,
 					   gfp_t gfp, void (*destroy)(void *))
 {
@@ -590,7 +591,7 @@ static inline int ptr_ring_resize_multiple(struct ptr_ring **rings, int nrings,
 	void ***queues;
 	int i;
 
-	queues = kmalloc(nrings * sizeof *queues, gfp);
+	queues = kmalloc_array(nrings, sizeof(*queues), gfp);
 	if (!queues)
 		goto noqueues;
 
diff --git a/include/linux/random.h b/include/linux/random.h
index ed5c3838780d..eafea6a09361 100644
--- a/include/linux/random.h
+++ b/include/linux/random.h
@@ -34,6 +34,7 @@ extern void add_input_randomness(unsigned int type, unsigned int code,
 extern void add_interrupt_randomness(int irq, int irq_flags) __latent_entropy;
 
 extern void get_random_bytes(void *buf, int nbytes);
+extern int wait_for_random_bytes(void);
 extern int add_random_ready_callback(struct random_ready_callback *rdy);
 extern void del_random_ready_callback(struct random_ready_callback *rdy);
 extern void get_random_bytes_arch(void *buf, int nbytes);
@@ -57,6 +58,52 @@ static inline unsigned long get_random_long(void)
 #endif
 }
 
+/*
+ * On 64-bit architectures, protect against non-terminated C string overflows
+ * by zeroing out the first byte of the canary; this leaves 56 bits of entropy.
+ */
+#ifdef CONFIG_64BIT
+# ifdef __LITTLE_ENDIAN
+#  define CANARY_MASK 0xffffffffffffff00UL
+# else /* big endian, 64 bits: */
+#  define CANARY_MASK 0x00ffffffffffffffUL
+# endif
+#else /* 32 bits: */
+# define CANARY_MASK 0xffffffffUL
+#endif
+
+static inline unsigned long get_random_canary(void)
+{
+	unsigned long val = get_random_long();
+
+	return val & CANARY_MASK;
+}
+
+/* Calls wait_for_random_bytes() and then calls get_random_bytes(buf, nbytes).
+ * Returns the result of the call to wait_for_random_bytes. */
+static inline int get_random_bytes_wait(void *buf, int nbytes)
+{
+	int ret = wait_for_random_bytes();
+	if (unlikely(ret))
+		return ret;
+	get_random_bytes(buf, nbytes);
+	return 0;
+}
+
+#define declare_get_random_var_wait(var) \
+	static inline int get_random_ ## var ## _wait(var *out) { \
+		int ret = wait_for_random_bytes(); \
+		if (unlikely(ret)) \
+			return ret; \
+		*out = get_random_ ## var(); \
+		return 0; \
+	}
+declare_get_random_var_wait(u32)
+declare_get_random_var_wait(u64)
+declare_get_random_var_wait(int)
+declare_get_random_var_wait(long)
+#undef declare_get_random_var
+
 unsigned long randomize_page(unsigned long start, unsigned long range);
 
 u32 prandom_u32(void);
diff --git a/include/linux/rtc.h b/include/linux/rtc.h
index b693adac853b..0a0f0d14a5fb 100644
--- a/include/linux/rtc.h
+++ b/include/linux/rtc.h
@@ -14,6 +14,7 @@
 
 #include <linux/types.h>
 #include <linux/interrupt.h>
+#include <linux/nvmem-provider.h>
 #include <uapi/linux/rtc.h>
 
 extern int rtc_month_days(unsigned int month, unsigned int year);
@@ -32,17 +33,11 @@ static inline time64_t rtc_tm_sub(struct rtc_time *lhs, struct rtc_time *rhs)
 	return rtc_tm_to_time64(lhs) - rtc_tm_to_time64(rhs);
 }
 
-/**
- * Deprecated. Use rtc_time64_to_tm().
- */
 static inline void rtc_time_to_tm(unsigned long time, struct rtc_time *tm)
 {
 	rtc_time64_to_tm(time, tm);
 }
 
-/**
- * Deprecated. Use rtc_tm_to_time64().
- */
 static inline int rtc_tm_to_time(struct rtc_time *tm, unsigned long *time)
 {
 	*time = rtc_tm_to_time64(tm);
@@ -116,7 +111,6 @@ struct rtc_device {
 	struct module *owner;
 
 	int id;
-	char name[RTC_DEVICE_NAME_SIZE];
 
 	const struct rtc_class_ops *ops;
 	struct mutex ops_lock;
@@ -143,6 +137,14 @@ struct rtc_device {
 	/* Some hardware can't support UIE mode */
 	int uie_unsupported;
 
+	bool registered;
+
+	struct nvmem_config *nvmem_config;
+	struct nvmem_device *nvmem;
+	/* Old ABI support */
+	bool nvram_old_abi;
+	struct bin_attribute *nvram;
+
 #ifdef CONFIG_RTC_INTF_DEV_UIE_EMUL
 	struct work_struct uie_task;
 	struct timer_list uie_timer;
@@ -164,6 +166,8 @@ extern struct rtc_device *devm_rtc_device_register(struct device *dev,
 					const char *name,
 					const struct rtc_class_ops *ops,
 					struct module *owner);
+struct rtc_device *devm_rtc_allocate_device(struct device *dev);
+int __rtc_register_device(struct module *owner, struct rtc_device *rtc);
 extern void rtc_device_unregister(struct rtc_device *rtc);
 extern void devm_rtc_device_unregister(struct device *dev,
 					struct rtc_device *rtc);
@@ -219,6 +223,9 @@ static inline bool is_leap_year(unsigned int year)
 	return (!(year % 4) && (year % 100)) || !(year % 400);
 }
 
+#define rtc_register_device(device) \
+	__rtc_register_device(THIS_MODULE, device)
+
 #ifdef CONFIG_RTC_HCTOSYS_DEVICE
 extern int rtc_hctosys_ret;
 #else
diff --git a/include/linux/sched.h b/include/linux/sched.h
index 20814b7d7d70..c05ac5f5aa03 100644
--- a/include/linux/sched.h
+++ b/include/linux/sched.h
@@ -426,7 +426,7 @@ struct sched_rt_entity {
 	/* rq "owned" by this entity/group: */
 	struct rt_rq			*my_q;
 #endif
-};
+} __randomize_layout;
 
 struct sched_dl_entity {
 	struct rb_node			rb_node;
@@ -526,6 +526,13 @@ struct task_struct {
 #endif
 	/* -1 unrunnable, 0 runnable, >0 stopped: */
 	volatile long			state;
+
+	/*
+	 * This begins the randomizable portion of task_struct. Only
+	 * scheduling-critical items should be added above here.
+	 */
+	randomized_struct_fields_start
+
 	void				*stack;
 	atomic_t			usage;
 	/* Per task flags (PF_*), defined further below: */
@@ -974,6 +981,7 @@ struct task_struct {
 
 #ifdef CONFIG_FAULT_INJECTION
 	int				make_it_fail;
+	unsigned int			fail_nth;
 #endif
 	/*
 	 * When (nr_dirtied >= nr_dirtied_pause), it's time to call
@@ -1078,6 +1086,13 @@ struct task_struct {
 	/* Used by LSM modules for access restriction: */
 	void				*security;
 #endif
+
+	/*
+	 * New fields for task_struct should be added above here, so that
+	 * they are included in the randomized portion of task_struct.
+	 */
+	randomized_struct_fields_end
+
 	/* CPU-specific state of this task: */
 	struct thread_struct		thread;
 
@@ -1148,13 +1163,6 @@ static inline pid_t task_tgid_nr(struct task_struct *tsk)
 	return tsk->tgid;
 }
 
-extern pid_t task_tgid_nr_ns(struct task_struct *tsk, struct pid_namespace *ns);
-
-static inline pid_t task_tgid_vnr(struct task_struct *tsk)
-{
-	return pid_vnr(task_tgid(tsk));
-}
-
 /**
  * pid_alive - check that a task structure is not stale
  * @p: Task structure to be checked.
@@ -1170,23 +1178,6 @@ static inline int pid_alive(const struct task_struct *p)
 	return p->pids[PIDTYPE_PID].pid != NULL;
 }
 
-static inline pid_t task_ppid_nr_ns(const struct task_struct *tsk, struct pid_namespace *ns)
-{
-	pid_t pid = 0;
-
-	rcu_read_lock();
-	if (pid_alive(tsk))
-		pid = task_tgid_nr_ns(rcu_dereference(tsk->real_parent), ns);
-	rcu_read_unlock();
-
-	return pid;
-}
-
-static inline pid_t task_ppid_nr(const struct task_struct *tsk)
-{
-	return task_ppid_nr_ns(tsk, &init_pid_ns);
-}
-
 static inline pid_t task_pgrp_nr_ns(struct task_struct *tsk, struct pid_namespace *ns)
 {
 	return __task_pid_nr_ns(tsk, PIDTYPE_PGID, ns);
@@ -1208,6 +1199,33 @@ static inline pid_t task_session_vnr(struct task_struct *tsk)
 	return __task_pid_nr_ns(tsk, PIDTYPE_SID, NULL);
 }
 
+static inline pid_t task_tgid_nr_ns(struct task_struct *tsk, struct pid_namespace *ns)
+{
+	return __task_pid_nr_ns(tsk, __PIDTYPE_TGID, ns);
+}
+
+static inline pid_t task_tgid_vnr(struct task_struct *tsk)
+{
+	return __task_pid_nr_ns(tsk, __PIDTYPE_TGID, NULL);
+}
+
+static inline pid_t task_ppid_nr_ns(const struct task_struct *tsk, struct pid_namespace *ns)
+{
+	pid_t pid = 0;
+
+	rcu_read_lock();
+	if (pid_alive(tsk))
+		pid = task_tgid_nr_ns(rcu_dereference(tsk->real_parent), ns);
+	rcu_read_unlock();
+
+	return pid;
+}
+
+static inline pid_t task_ppid_nr(const struct task_struct *tsk)
+{
+	return task_ppid_nr_ns(tsk, &init_pid_ns);
+}
+
 /* Obsolete, do not use: */
 static inline pid_t task_pgrp_nr(struct task_struct *tsk)
 {
diff --git a/include/linux/sched/signal.h b/include/linux/sched/signal.h
index c06d63b3a583..2a0dd40b15db 100644
--- a/include/linux/sched/signal.h
+++ b/include/linux/sched/signal.h
@@ -222,7 +222,7 @@ struct signal_struct {
 	struct mutex cred_guard_mutex;	/* guard against foreign influences on
 					 * credential calculations
 					 * (notably. ptrace) */
-};
+} __randomize_layout;
 
 /*
  * Bits in flags field of signal_struct.
diff --git a/include/linux/sem.h b/include/linux/sem.h
index 9edec926e9d9..de2deb8676bd 100644
--- a/include/linux/sem.h
+++ b/include/linux/sem.h
@@ -8,11 +8,29 @@
 
 struct task_struct;
 
+/* One semaphore structure for each semaphore in the system. */
+struct sem {
+	int	semval;		/* current value */
+	/*
+	 * PID of the process that last modified the semaphore. For
+	 * Linux, specifically these are:
+	 *  - semop
+	 *  - semctl, via SETVAL and SETALL.
+	 *  - at task exit when performing undo adjustments (see exit_sem).
+	 */
+	int	sempid;
+	spinlock_t	lock;	/* spinlock for fine-grained semtimedop */
+	struct list_head pending_alter; /* pending single-sop operations */
+					/* that alter the semaphore */
+	struct list_head pending_const; /* pending single-sop operations */
+					/* that do not alter the semaphore*/
+	time_t	sem_otime;	/* candidate for sem_otime */
+} ____cacheline_aligned_in_smp;
+
 /* One sem_array data structure for each set of semaphores in the system. */
 struct sem_array {
 	struct kern_ipc_perm	sem_perm;	/* permissions .. see ipc.h */
-	time_t			sem_ctime;	/* last change time */
-	struct sem		*sem_base;	/* ptr to first semaphore in array */
+	time_t			sem_ctime;	/* create/last semctl() time */
 	struct list_head	pending_alter;	/* pending operations */
 						/* that alter the array */
 	struct list_head	pending_const;	/* pending complex operations */
@@ -21,7 +39,9 @@ struct sem_array {
 	int			sem_nsems;	/* no. of semaphores in array */
 	int			complex_count;	/* pending complex operations */
 	unsigned int		use_global_lock;/* >0: global lock required */
-};
+
+	struct sem		sems[];
+} __randomize_layout;
 
 #ifdef CONFIG_SYSVIPC
 
diff --git a/include/linux/shm.h b/include/linux/shm.h
index 04e881829625..0fb7061ec54c 100644
--- a/include/linux/shm.h
+++ b/include/linux/shm.h
@@ -22,7 +22,7 @@ struct shmid_kernel /* private to the kernel */
 	/* The task created the shm object.  NULL if the task is dead. */
 	struct task_struct	*shm_creator;
 	struct list_head	shm_clist;	/* list by creator */
-};
+} __randomize_layout;
 
 /* shm_mode upper byte flags */
 #define	SHM_DEST	01000	/* segment will be destroyed on last detach */
diff --git a/include/linux/skb_array.h b/include/linux/skb_array.h
index 35226cd4efb0..8621ffdeecbf 100644
--- a/include/linux/skb_array.h
+++ b/include/linux/skb_array.h
@@ -193,7 +193,8 @@ static inline int skb_array_resize(struct skb_array *a, int size, gfp_t gfp)
 }
 
 static inline int skb_array_resize_multiple(struct skb_array **rings,
-					    int nrings, int size, gfp_t gfp)
+					    int nrings, unsigned int size,
+					    gfp_t gfp)
 {
 	BUILD_BUG_ON(offsetof(struct skb_array, ring));
 	return ptr_ring_resize_multiple((struct ptr_ring **)rings,
diff --git a/include/linux/slab.h b/include/linux/slab.h
index 04a7f7993e67..41473df6dfb0 100644
--- a/include/linux/slab.h
+++ b/include/linux/slab.h
@@ -471,7 +471,8 @@ static __always_inline void *kmalloc_large(size_t size, gfp_t flags)
  *
  * %__GFP_NOWARN - If allocation fails, don't issue any warnings.
  *
- * %__GFP_REPEAT - If allocation fails initially, try once more before failing.
+ * %__GFP_RETRY_MAYFAIL - Try really hard to succeed the allocation but fail
+ *   eventually.
  *
  * There are other flags available as well, but these are not intended
  * for general use, and so are not documented here. For a full list of
diff --git a/include/linux/string.h b/include/linux/string.h
index 7439d83eaa33..a467e617eeb0 100644
--- a/include/linux/string.h
+++ b/include/linux/string.h
@@ -137,6 +137,7 @@ extern char *kstrdup(const char *s, gfp_t gfp) __malloc;
 extern const char *kstrdup_const(const char *s, gfp_t gfp);
 extern char *kstrndup(const char *s, size_t len, gfp_t gfp);
 extern void *kmemdup(const void *src, size_t len, gfp_t gfp);
+extern char *kmemdup_nul(const char *s, size_t len, gfp_t gfp);
 
 extern char **argv_split(gfp_t gfp, const char *str, int *argcp);
 extern void argv_free(char **argv);
@@ -193,4 +194,205 @@ static inline const char *kbasename(const char *path)
 	return tail ? tail + 1 : path;
 }
 
+#define __FORTIFY_INLINE extern __always_inline __attribute__((gnu_inline))
+#define __RENAME(x) __asm__(#x)
+
+void fortify_panic(const char *name) __noreturn __cold;
+void __read_overflow(void) __compiletime_error("detected read beyond size of object passed as 1st parameter");
+void __read_overflow2(void) __compiletime_error("detected read beyond size of object passed as 2nd parameter");
+void __write_overflow(void) __compiletime_error("detected write beyond size of object passed as 1st parameter");
+
+#if !defined(__NO_FORTIFY) && defined(__OPTIMIZE__) && defined(CONFIG_FORTIFY_SOURCE)
+__FORTIFY_INLINE char *strncpy(char *p, const char *q, __kernel_size_t size)
+{
+	size_t p_size = __builtin_object_size(p, 0);
+	if (__builtin_constant_p(size) && p_size < size)
+		__write_overflow();
+	if (p_size < size)
+		fortify_panic(__func__);
+	return __builtin_strncpy(p, q, size);
+}
+
+__FORTIFY_INLINE char *strcat(char *p, const char *q)
+{
+	size_t p_size = __builtin_object_size(p, 0);
+	if (p_size == (size_t)-1)
+		return __builtin_strcat(p, q);
+	if (strlcat(p, q, p_size) >= p_size)
+		fortify_panic(__func__);
+	return p;
+}
+
+__FORTIFY_INLINE __kernel_size_t strlen(const char *p)
+{
+	__kernel_size_t ret;
+	size_t p_size = __builtin_object_size(p, 0);
+	if (p_size == (size_t)-1)
+		return __builtin_strlen(p);
+	ret = strnlen(p, p_size);
+	if (p_size <= ret)
+		fortify_panic(__func__);
+	return ret;
+}
+
+extern __kernel_size_t __real_strnlen(const char *, __kernel_size_t) __RENAME(strnlen);
+__FORTIFY_INLINE __kernel_size_t strnlen(const char *p, __kernel_size_t maxlen)
+{
+	size_t p_size = __builtin_object_size(p, 0);
+	__kernel_size_t ret = __real_strnlen(p, maxlen < p_size ? maxlen : p_size);
+	if (p_size <= ret && maxlen != ret)
+		fortify_panic(__func__);
+	return ret;
+}
+
+/* defined after fortified strlen to reuse it */
+extern size_t __real_strlcpy(char *, const char *, size_t) __RENAME(strlcpy);
+__FORTIFY_INLINE size_t strlcpy(char *p, const char *q, size_t size)
+{
+	size_t ret;
+	size_t p_size = __builtin_object_size(p, 0);
+	size_t q_size = __builtin_object_size(q, 0);
+	if (p_size == (size_t)-1 && q_size == (size_t)-1)
+		return __real_strlcpy(p, q, size);
+	ret = strlen(q);
+	if (size) {
+		size_t len = (ret >= size) ? size - 1 : ret;
+		if (__builtin_constant_p(len) && len >= p_size)
+			__write_overflow();
+		if (len >= p_size)
+			fortify_panic(__func__);
+		__builtin_memcpy(p, q, len);
+		p[len] = '\0';
+	}
+	return ret;
+}
+
+/* defined after fortified strlen and strnlen to reuse them */
+__FORTIFY_INLINE char *strncat(char *p, const char *q, __kernel_size_t count)
+{
+	size_t p_len, copy_len;
+	size_t p_size = __builtin_object_size(p, 0);
+	size_t q_size = __builtin_object_size(q, 0);
+	if (p_size == (size_t)-1 && q_size == (size_t)-1)
+		return __builtin_strncat(p, q, count);
+	p_len = strlen(p);
+	copy_len = strnlen(q, count);
+	if (p_size < p_len + copy_len + 1)
+		fortify_panic(__func__);
+	__builtin_memcpy(p + p_len, q, copy_len);
+	p[p_len + copy_len] = '\0';
+	return p;
+}
+
+__FORTIFY_INLINE void *memset(void *p, int c, __kernel_size_t size)
+{
+	size_t p_size = __builtin_object_size(p, 0);
+	if (__builtin_constant_p(size) && p_size < size)
+		__write_overflow();
+	if (p_size < size)
+		fortify_panic(__func__);
+	return __builtin_memset(p, c, size);
+}
+
+__FORTIFY_INLINE void *memcpy(void *p, const void *q, __kernel_size_t size)
+{
+	size_t p_size = __builtin_object_size(p, 0);
+	size_t q_size = __builtin_object_size(q, 0);
+	if (__builtin_constant_p(size)) {
+		if (p_size < size)
+			__write_overflow();
+		if (q_size < size)
+			__read_overflow2();
+	}
+	if (p_size < size || q_size < size)
+		fortify_panic(__func__);
+	return __builtin_memcpy(p, q, size);
+}
+
+__FORTIFY_INLINE void *memmove(void *p, const void *q, __kernel_size_t size)
+{
+	size_t p_size = __builtin_object_size(p, 0);
+	size_t q_size = __builtin_object_size(q, 0);
+	if (__builtin_constant_p(size)) {
+		if (p_size < size)
+			__write_overflow();
+		if (q_size < size)
+			__read_overflow2();
+	}
+	if (p_size < size || q_size < size)
+		fortify_panic(__func__);
+	return __builtin_memmove(p, q, size);
+}
+
+extern void *__real_memscan(void *, int, __kernel_size_t) __RENAME(memscan);
+__FORTIFY_INLINE void *memscan(void *p, int c, __kernel_size_t size)
+{
+	size_t p_size = __builtin_object_size(p, 0);
+	if (__builtin_constant_p(size) && p_size < size)
+		__read_overflow();
+	if (p_size < size)
+		fortify_panic(__func__);
+	return __real_memscan(p, c, size);
+}
+
+__FORTIFY_INLINE int memcmp(const void *p, const void *q, __kernel_size_t size)
+{
+	size_t p_size = __builtin_object_size(p, 0);
+	size_t q_size = __builtin_object_size(q, 0);
+	if (__builtin_constant_p(size)) {
+		if (p_size < size)
+			__read_overflow();
+		if (q_size < size)
+			__read_overflow2();
+	}
+	if (p_size < size || q_size < size)
+		fortify_panic(__func__);
+	return __builtin_memcmp(p, q, size);
+}
+
+__FORTIFY_INLINE void *memchr(const void *p, int c, __kernel_size_t size)
+{
+	size_t p_size = __builtin_object_size(p, 0);
+	if (__builtin_constant_p(size) && p_size < size)
+		__read_overflow();
+	if (p_size < size)
+		fortify_panic(__func__);
+	return __builtin_memchr(p, c, size);
+}
+
+void *__real_memchr_inv(const void *s, int c, size_t n) __RENAME(memchr_inv);
+__FORTIFY_INLINE void *memchr_inv(const void *p, int c, size_t size)
+{
+	size_t p_size = __builtin_object_size(p, 0);
+	if (__builtin_constant_p(size) && p_size < size)
+		__read_overflow();
+	if (p_size < size)
+		fortify_panic(__func__);
+	return __real_memchr_inv(p, c, size);
+}
+
+extern void *__real_kmemdup(const void *src, size_t len, gfp_t gfp) __RENAME(kmemdup);
+__FORTIFY_INLINE void *kmemdup(const void *p, size_t size, gfp_t gfp)
+{
+	size_t p_size = __builtin_object_size(p, 0);
+	if (__builtin_constant_p(size) && p_size < size)
+		__read_overflow();
+	if (p_size < size)
+		fortify_panic(__func__);
+	return __real_kmemdup(p, size, gfp);
+}
+
+/* defined after fortified strlen and memcpy to reuse them */
+__FORTIFY_INLINE char *strcpy(char *p, const char *q)
+{
+	size_t p_size = __builtin_object_size(p, 0);
+	size_t q_size = __builtin_object_size(q, 0);
+	if (p_size == (size_t)-1 && q_size == (size_t)-1)
+		return __builtin_strcpy(p, q);
+	memcpy(p, q, strlen(q) + 1);
+	return p;
+}
+
+#endif
+
 #endif /* _LINUX_STRING_H_ */
diff --git a/include/linux/sunrpc/clnt.h b/include/linux/sunrpc/clnt.h
index 6095ecba0dde..55ef67bea06b 100644
--- a/include/linux/sunrpc/clnt.h
+++ b/include/linux/sunrpc/clnt.h
@@ -39,7 +39,7 @@ struct rpc_clnt {
 	struct list_head	cl_tasks;	/* List of tasks */
 	spinlock_t		cl_lock;	/* spinlock */
 	struct rpc_xprt __rcu *	cl_xprt;	/* transport */
-	struct rpc_procinfo *	cl_procinfo;	/* procedure info */
+	const struct rpc_procinfo *cl_procinfo;	/* procedure info */
 	u32			cl_prog,	/* RPC program number */
 				cl_vers,	/* RPC version number */
 				cl_maxproc;	/* max procedure number */
@@ -87,7 +87,8 @@ struct rpc_program {
 struct rpc_version {
 	u32			number;		/* version number */
 	unsigned int		nrprocs;	/* number of procs */
-	struct rpc_procinfo *	procs;		/* procedure array */
+	const struct rpc_procinfo *procs;	/* procedure array */
+	unsigned int		*counts;	/* call counts */
 };
 
 /*
@@ -99,7 +100,6 @@ struct rpc_procinfo {
 	kxdrdproc_t		p_decode;	/* XDR decode function */
 	unsigned int		p_arglen;	/* argument hdr length (u32) */
 	unsigned int		p_replen;	/* reply hdr length (u32) */
-	unsigned int		p_count;	/* call count */
 	unsigned int		p_timer;	/* Which RTT timer to use */
 	u32			p_statidx;	/* Which procedure to account */
 	const char *		p_name;		/* name of procedure */
diff --git a/include/linux/sunrpc/sched.h b/include/linux/sunrpc/sched.h
index 9d7529ffc4ce..50a99a117da7 100644
--- a/include/linux/sunrpc/sched.h
+++ b/include/linux/sunrpc/sched.h
@@ -22,7 +22,7 @@
  */
 struct rpc_procinfo;
 struct rpc_message {
-	struct rpc_procinfo *	rpc_proc;	/* Procedure information */
+	const struct rpc_procinfo *rpc_proc;	/* Procedure information */
 	void *			rpc_argp;	/* Arguments */
 	void *			rpc_resp;	/* Result */
 	struct rpc_cred *	rpc_cred;	/* Credentials */
diff --git a/include/linux/sunrpc/svc.h b/include/linux/sunrpc/svc.h
index 11cef5a7bc87..a3f8af9bd543 100644
--- a/include/linux/sunrpc/svc.h
+++ b/include/linux/sunrpc/svc.h
@@ -237,7 +237,7 @@ struct svc_rqst {
 
 	struct svc_serv *	rq_server;	/* RPC service definition */
 	struct svc_pool *	rq_pool;	/* thread pool */
-	struct svc_procedure *	rq_procinfo;	/* procedure info */
+	const struct svc_procedure *rq_procinfo;/* procedure info */
 	struct auth_ops *	rq_authop;	/* authentication flavour */
 	struct svc_cred		rq_cred;	/* auth info */
 	void *			rq_xprt_ctxt;	/* transport specific context ptr */
@@ -246,7 +246,7 @@ struct svc_rqst {
 	size_t			rq_xprt_hlen;	/* xprt header len */
 	struct xdr_buf		rq_arg;
 	struct xdr_buf		rq_res;
-	struct page *		rq_pages[RPCSVC_MAXPAGES];
+	struct page		*rq_pages[RPCSVC_MAXPAGES + 1];
 	struct page *		*rq_respages;	/* points into rq_pages */
 	struct page *		*rq_next_page; /* next reply page to use */
 	struct page *		*rq_page_end;  /* one past the last page */
@@ -384,7 +384,7 @@ struct svc_program {
 	unsigned int		pg_lovers;	/* lowest version */
 	unsigned int		pg_hivers;	/* highest version */
 	unsigned int		pg_nvers;	/* number of versions */
-	struct svc_version **	pg_vers;	/* version array */
+	const struct svc_version **pg_vers;	/* version array */
 	char *			pg_name;	/* service name */
 	char *			pg_class;	/* class name: services sharing authentication */
 	struct svc_stat *	pg_stats;	/* rpc statistics */
@@ -397,7 +397,8 @@ struct svc_program {
 struct svc_version {
 	u32			vs_vers;	/* version number */
 	u32			vs_nproc;	/* number of procedures */
-	struct svc_procedure *	vs_proc;	/* per-procedure info */
+	const struct svc_procedure *vs_proc;	/* per-procedure info */
+	unsigned int		*vs_count;	/* call counts */
 	u32			vs_xdrsize;	/* xdrsize needed for this version */
 
 	/* Don't register with rpcbind */
@@ -419,15 +420,17 @@ struct svc_version {
 /*
  * RPC procedure info
  */
-typedef __be32	(*svc_procfunc)(struct svc_rqst *, void *argp, void *resp);
 struct svc_procedure {
-	svc_procfunc		pc_func;	/* process the request */
-	kxdrproc_t		pc_decode;	/* XDR decode args */
-	kxdrproc_t		pc_encode;	/* XDR encode result */
-	kxdrproc_t		pc_release;	/* XDR free result */
+	/* process the request: */
+	__be32			(*pc_func)(struct svc_rqst *);
+	/* XDR decode args: */
+	int			(*pc_decode)(struct svc_rqst *, __be32 *data);
+	/* XDR encode result: */
+	int			(*pc_encode)(struct svc_rqst *, __be32 *data);
+	/* XDR free result: */
+	void			(*pc_release)(struct svc_rqst *);
 	unsigned int		pc_argsize;	/* argument struct size */
 	unsigned int		pc_ressize;	/* result struct size */
-	unsigned int		pc_count;	/* call count */
 	unsigned int		pc_cachetype;	/* cache info (NFS) */
 	unsigned int		pc_xdrressize;	/* maximum size of XDR reply */
 };
diff --git a/include/linux/sunrpc/svc_rdma.h b/include/linux/sunrpc/svc_rdma.h
index f3787d800ba4..995c6fe9ee90 100644
--- a/include/linux/sunrpc/svc_rdma.h
+++ b/include/linux/sunrpc/svc_rdma.h
@@ -77,46 +77,25 @@ extern atomic_t rdma_stat_sq_prod;
  */
 struct svc_rdma_op_ctxt {
 	struct list_head list;
-	struct svc_rdma_op_ctxt *read_hdr;
-	struct svc_rdma_fastreg_mr *frmr;
-	int hdr_count;
 	struct xdr_buf arg;
 	struct ib_cqe cqe;
-	struct ib_cqe reg_cqe;
-	struct ib_cqe inv_cqe;
 	u32 byte_len;
-	u32 position;
 	struct svcxprt_rdma *xprt;
-	unsigned long flags;
 	enum dma_data_direction direction;
 	int count;
 	unsigned int mapped_sges;
+	int hdr_count;
 	struct ib_send_wr send_wr;
 	struct ib_sge sge[1 + RPCRDMA_MAX_INLINE_THRESH / PAGE_SIZE];
 	struct page *pages[RPCSVC_MAXPAGES];
 };
 
-struct svc_rdma_fastreg_mr {
-	struct ib_mr *mr;
-	struct scatterlist *sg;
-	int sg_nents;
-	unsigned long access_flags;
-	enum dma_data_direction direction;
-	struct list_head frmr_list;
-};
-
-#define RDMACTXT_F_LAST_CTXT	2
-
-#define	SVCRDMA_DEVCAP_FAST_REG		1	/* fast mr registration */
-#define	SVCRDMA_DEVCAP_READ_W_INV	2	/* read w/ invalidate */
-
 struct svcxprt_rdma {
 	struct svc_xprt      sc_xprt;		/* SVC transport structure */
 	struct rdma_cm_id    *sc_cm_id;		/* RDMA connection id */
 	struct list_head     sc_accept_q;	/* Conn. waiting accept */
 	int		     sc_ord;		/* RDMA read limit */
 	int                  sc_max_sge;
-	int                  sc_max_sge_rd;	/* max sge for read target */
 	bool		     sc_snd_w_inv;	/* OK to use Send With Invalidate */
 
 	atomic_t             sc_sq_avail;	/* SQEs ready to be consumed */
@@ -141,14 +120,6 @@ struct svcxprt_rdma {
 	struct ib_qp         *sc_qp;
 	struct ib_cq         *sc_rq_cq;
 	struct ib_cq         *sc_sq_cq;
-	int		     (*sc_reader)(struct svcxprt_rdma *,
-					  struct svc_rqst *,
-					  struct svc_rdma_op_ctxt *,
-					  int *, u32 *, u32, u32, u64, bool);
-	u32		     sc_dev_caps;	/* distilled device caps */
-	unsigned int	     sc_frmr_pg_list_len;
-	struct list_head     sc_frmr_q;
-	spinlock_t	     sc_frmr_q_lock;
 
 	spinlock_t	     sc_lock;		/* transport lock */
 
@@ -185,20 +156,14 @@ extern int svc_rdma_handle_bc_reply(struct rpc_xprt *xprt,
 				    __be32 *rdma_resp,
 				    struct xdr_buf *rcvbuf);
 
-/* svc_rdma_marshal.c */
-extern int svc_rdma_xdr_decode_req(struct xdr_buf *);
-
 /* svc_rdma_recvfrom.c */
 extern int svc_rdma_recvfrom(struct svc_rqst *);
-extern int rdma_read_chunk_lcl(struct svcxprt_rdma *, struct svc_rqst *,
-			       struct svc_rdma_op_ctxt *, int *, u32 *,
-			       u32, u32, u64, bool);
-extern int rdma_read_chunk_frmr(struct svcxprt_rdma *, struct svc_rqst *,
-				struct svc_rdma_op_ctxt *, int *, u32 *,
-				u32, u32, u64, bool);
 
 /* svc_rdma_rw.c */
 extern void svc_rdma_destroy_rw_ctxts(struct svcxprt_rdma *rdma);
+extern int svc_rdma_recv_read_chunk(struct svcxprt_rdma *rdma,
+				    struct svc_rqst *rqstp,
+				    struct svc_rdma_op_ctxt *head, __be32 *p);
 extern int svc_rdma_send_write_chunk(struct svcxprt_rdma *rdma,
 				     __be32 *wr_ch, struct xdr_buf *xdr);
 extern int svc_rdma_send_reply_chunk(struct svcxprt_rdma *rdma,
@@ -226,9 +191,6 @@ extern int svc_rdma_create_listen(struct svc_serv *, int, struct sockaddr *);
 extern struct svc_rdma_op_ctxt *svc_rdma_get_context(struct svcxprt_rdma *);
 extern void svc_rdma_put_context(struct svc_rdma_op_ctxt *, int);
 extern void svc_rdma_unmap_dma(struct svc_rdma_op_ctxt *ctxt);
-extern struct svc_rdma_fastreg_mr *svc_rdma_get_frmr(struct svcxprt_rdma *);
-extern void svc_rdma_put_frmr(struct svcxprt_rdma *,
-			      struct svc_rdma_fastreg_mr *);
 extern void svc_sq_reap(struct svcxprt_rdma *);
 extern void svc_rq_reap(struct svcxprt_rdma *);
 extern void svc_rdma_prep_reply_hdr(struct svc_rqst *);
diff --git a/include/linux/sunrpc/xdr.h b/include/linux/sunrpc/xdr.h
index 054c8cde18f3..261b48a2701d 100644
--- a/include/linux/sunrpc/xdr.h
+++ b/include/linux/sunrpc/xdr.h
@@ -17,6 +17,8 @@
 #include <asm/unaligned.h>
 #include <linux/scatterlist.h>
 
+struct rpc_rqst;
+
 /*
  * Buffer adjustment
  */
@@ -33,13 +35,6 @@ struct xdr_netobj {
 };
 
 /*
- * This is the legacy generic XDR function. rqstp is either a rpc_rqst
- * (client side) or svc_rqst pointer (server side).
- * Encode functions always assume there's enough room in the buffer.
- */
-typedef int	(*kxdrproc_t)(void *rqstp, __be32 *data, void *obj);
-
-/*
  * Basic structure for transmission/reception of a client XDR message.
  * Features a header (for a linear buffer containing RPC headers
  * and the data payload for short messages), and then an array of
@@ -222,8 +217,10 @@ struct xdr_stream {
 /*
  * These are the xdr_stream style generic XDR encode and decode functions.
  */
-typedef void	(*kxdreproc_t)(void *rqstp, struct xdr_stream *xdr, void *obj);
-typedef int	(*kxdrdproc_t)(void *rqstp, struct xdr_stream *xdr, void *obj);
+typedef void	(*kxdreproc_t)(struct rpc_rqst *rqstp, struct xdr_stream *xdr,
+		const void *obj);
+typedef int	(*kxdrdproc_t)(struct rpc_rqst *rqstp, struct xdr_stream *xdr,
+		void *obj);
 
 extern void xdr_init_encode(struct xdr_stream *xdr, struct xdr_buf *buf, __be32 *p);
 extern __be32 *xdr_reserve_space(struct xdr_stream *xdr, size_t nbytes);
diff --git a/include/linux/sync_file.h b/include/linux/sync_file.h
index 5726107963b2..0ad87c434ae6 100644
--- a/include/linux/sync_file.h
+++ b/include/linux/sync_file.h
@@ -43,12 +43,13 @@ struct sync_file {
 #endif
 
 	wait_queue_head_t	wq;
+	unsigned long		flags;
 
 	struct dma_fence	*fence;
 	struct dma_fence_cb cb;
 };
 
-#define POLL_ENABLED DMA_FENCE_FLAG_USER_BITS
+#define POLL_ENABLED 0
 
 struct sync_file *sync_file_create(struct dma_fence *fence);
 struct dma_fence *sync_file_get_fence(int fd);
diff --git a/include/linux/sysctl.h b/include/linux/sysctl.h
index 80d07816def0..1d4dba490fb6 100644
--- a/include/linux/sysctl.h
+++ b/include/linux/sysctl.h
@@ -47,6 +47,9 @@ extern int proc_douintvec(struct ctl_table *, int,
 			 void __user *, size_t *, loff_t *);
 extern int proc_dointvec_minmax(struct ctl_table *, int,
 				void __user *, size_t *, loff_t *);
+extern int proc_douintvec_minmax(struct ctl_table *table, int write,
+				 void __user *buffer, size_t *lenp,
+				 loff_t *ppos);
 extern int proc_dointvec_jiffies(struct ctl_table *, int,
 				 void __user *, size_t *, loff_t *);
 extern int proc_dointvec_userhz_jiffies(struct ctl_table *, int,
@@ -117,7 +120,7 @@ struct ctl_table
 	struct ctl_table_poll *poll;
 	void *extra1;
 	void *extra2;
-};
+} __randomize_layout;
 
 struct ctl_node {
 	struct rb_node node;
@@ -143,7 +146,7 @@ struct ctl_table_header
 	struct ctl_table_set *set;
 	struct ctl_dir *parent;
 	struct ctl_node *node;
-	struct list_head inodes; /* head for proc_inode->sysctl_inodes */
+	struct hlist_head inodes; /* head for proc_inode->sysctl_inodes */
 };
 
 struct ctl_dir {
diff --git a/include/linux/trace_events.h b/include/linux/trace_events.h
index f73cedfa2e0b..536c80ff7ad9 100644
--- a/include/linux/trace_events.h
+++ b/include/linux/trace_events.h
@@ -338,7 +338,7 @@ enum {
 struct trace_event_file {
 	struct list_head		list;
 	struct trace_event_call		*event_call;
-	struct event_filter		*filter;
+	struct event_filter __rcu	*filter;
 	struct dentry			*dir;
 	struct trace_array		*tr;
 	struct trace_subsystem_dir	*system;
diff --git a/include/linux/tty.h b/include/linux/tty.h
index 69464c0d8068..79c30daf46a9 100644
--- a/include/linux/tty.h
+++ b/include/linux/tty.h
@@ -332,7 +332,7 @@ struct tty_struct {
 	/* If the tty has a pending do_SAK, queue it here - akpm */
 	struct work_struct SAK_work;
 	struct tty_port *port;
-};
+} __randomize_layout;
 
 /* Each of a tty's open files has private_data pointing to tty_file_private */
 struct tty_file_private {
diff --git a/include/linux/tty_driver.h b/include/linux/tty_driver.h
index b742b5e47cc2..00b2213f6a35 100644
--- a/include/linux/tty_driver.h
+++ b/include/linux/tty_driver.h
@@ -291,7 +291,7 @@ struct tty_operations {
 	void (*poll_put_char)(struct tty_driver *driver, int line, char ch);
 #endif
 	const struct file_operations *proc_fops;
-};
+} __randomize_layout;
 
 struct tty_driver {
 	int	magic;		/* magic number for this structure */
@@ -325,7 +325,7 @@ struct tty_driver {
 
 	const struct tty_operations *ops;
 	struct list_head tty_drivers;
-};
+} __randomize_layout;
 
 extern struct list_head tty_drivers;
 
diff --git a/include/linux/usb/audio-v2.h b/include/linux/usb/audio-v2.h
index c5f2158ab00e..fd73bc0e9027 100644
--- a/include/linux/usb/audio-v2.h
+++ b/include/linux/usb/audio-v2.h
@@ -115,13 +115,13 @@ struct uac2_input_terminal_descriptor {
 	__u8 bDescriptorType;
 	__u8 bDescriptorSubtype;
 	__u8 bTerminalID;
-	__u16 wTerminalType;
+	__le16 wTerminalType;
 	__u8 bAssocTerminal;
 	__u8 bCSourceID;
 	__u8 bNrChannels;
-	__u32 bmChannelConfig;
+	__le32 bmChannelConfig;
 	__u8 iChannelNames;
-	__u16 bmControls;
+	__le16 bmControls;
 	__u8 iTerminal;
 } __attribute__((packed));
 
@@ -132,11 +132,11 @@ struct uac2_output_terminal_descriptor {
 	__u8 bDescriptorType;
 	__u8 bDescriptorSubtype;
 	__u8 bTerminalID;
-	__u16 wTerminalType;
+	__le16 wTerminalType;
 	__u8 bAssocTerminal;
 	__u8 bSourceID;
 	__u8 bCSourceID;
-	__u16 bmControls;
+	__le16 bmControls;
 	__u8 iTerminal;
 } __attribute__((packed));
 
@@ -164,9 +164,9 @@ struct uac2_as_header_descriptor {
 	__u8 bTerminalLink;
 	__u8 bmControls;
 	__u8 bFormatType;
-	__u32 bmFormats;
+	__le32 bmFormats;
 	__u8 bNrChannels;
-	__u32 bmChannelConfig;
+	__le32 bmChannelConfig;
 	__u8 iChannelNames;
 } __attribute__((packed));
 
diff --git a/include/linux/usb/cdc_ncm.h b/include/linux/usb/cdc_ncm.h
index 021f7a88f52c..1a59699cf82a 100644
--- a/include/linux/usb/cdc_ncm.h
+++ b/include/linux/usb/cdc_ncm.h
@@ -83,6 +83,7 @@
 /* Driver flags */
 #define CDC_NCM_FLAG_NDP_TO_END			0x02	/* NDP is placed at end of frame */
 #define CDC_MBIM_FLAG_AVOID_ALTSETTING_TOGGLE	0x04	/* Avoid altsetting toggle during init */
+#define CDC_NCM_FLAG_RESET_NTB16 0x08	/* set NDP16 one more time after altsetting switch */
 
 #define cdc_ncm_comm_intf_is_mbim(x)  ((x)->desc.bInterfaceSubClass == USB_CDC_SUBCLASS_MBIM && \
 				       (x)->desc.bInterfaceProtocol == USB_CDC_PROTO_NONE)
diff --git a/include/linux/user_namespace.h b/include/linux/user_namespace.h
index 32354b4b4b2b..b3575ce29148 100644
--- a/include/linux/user_namespace.h
+++ b/include/linux/user_namespace.h
@@ -66,7 +66,7 @@ struct user_namespace {
 #endif
 	struct ucounts		*ucounts;
 	int ucount_max[UCOUNT_COUNTS];
-};
+} __randomize_layout;
 
 struct ucounts {
 	struct hlist_node node;
diff --git a/include/linux/utsname.h b/include/linux/utsname.h
index 60f0bb83b313..da826ed059cf 100644
--- a/include/linux/utsname.h
+++ b/include/linux/utsname.h
@@ -26,7 +26,7 @@ struct uts_namespace {
 	struct user_namespace *user_ns;
 	struct ucounts *ucounts;
 	struct ns_common ns;
-};
+} __randomize_layout;
 extern struct uts_namespace init_uts_ns;
 
 #ifdef CONFIG_UTS_NS
diff --git a/include/linux/uuid.h b/include/linux/uuid.h
index 2251e1925ea4..33b0bdbb613c 100644
--- a/include/linux/uuid.h
+++ b/include/linux/uuid.h
@@ -84,26 +84,12 @@ int guid_parse(const char *uuid, guid_t *u);
 int uuid_parse(const char *uuid, uuid_t *u);
 
 /* backwards compatibility, don't use in new code */
-typedef uuid_t uuid_be;
-#define UUID_BE(a, _b, c, d0, d1, d2, d3, d4, d5, d6, d7) \
-	UUID_INIT(a, _b, c, d0, d1, d2, d3, d4, d5, d6, d7)
-#define NULL_UUID_BE 							\
-	UUID_BE(0x00000000, 0x0000, 0x0000, 0x00, 0x00, 0x00, 0x00,	\
-	     0x00, 0x00, 0x00, 0x00)
-
 #define uuid_le_gen(u)		guid_gen(u)
-#define uuid_be_gen(u)		uuid_gen(u)
 #define uuid_le_to_bin(guid, u)	guid_parse(guid, u)
-#define uuid_be_to_bin(uuid, u)	uuid_parse(uuid, u)
 
 static inline int uuid_le_cmp(const guid_t u1, const guid_t u2)
 {
 	return memcmp(&u1, &u2, sizeof(guid_t));
 }
 
-static inline int uuid_be_cmp(const uuid_t u1, const uuid_t u2)
-{
-	return memcmp(&u1, &u2, sizeof(uuid_t));
-}
-
 #endif
diff --git a/include/linux/vfio.h b/include/linux/vfio.h
index f57076b958b7..a47b985341d1 100644
--- a/include/linux/vfio.h
+++ b/include/linux/vfio.h
@@ -97,6 +97,8 @@ extern void vfio_unregister_iommu_driver(
  */
 extern struct vfio_group *vfio_group_get_external_user(struct file *filep);
 extern void vfio_group_put_external_user(struct vfio_group *group);
+extern bool vfio_external_group_match_file(struct vfio_group *group,
+					   struct file *filep);
 extern int vfio_external_user_iommu_id(struct vfio_group *group);
 extern long vfio_external_check_extension(struct vfio_group *group,
 					  unsigned long arg);
@@ -150,7 +152,7 @@ extern int vfio_set_irqs_validate_and_prepare(struct vfio_irq_set *hdr,
 					      size_t *data_size);
 
 struct pci_dev;
-#ifdef CONFIG_EEH
+#if IS_ENABLED(CONFIG_VFIO_SPAPR_EEH)
 extern void vfio_spapr_pci_eeh_open(struct pci_dev *pdev);
 extern void vfio_spapr_pci_eeh_release(struct pci_dev *pdev);
 extern long vfio_spapr_iommu_eeh_ioctl(struct iommu_group *group,
@@ -171,7 +173,7 @@ static inline long vfio_spapr_iommu_eeh_ioctl(struct iommu_group *group,
 {
 	return -ENOTTY;
 }
-#endif /* CONFIG_EEH */
+#endif /* CONFIG_VFIO_SPAPR_EEH */
 
 /*
  * IRQfd - generic
diff --git a/include/linux/wait.h b/include/linux/wait.h
index b289c96151ee..dc19880c02f5 100644
--- a/include/linux/wait.h
+++ b/include/linux/wait.h
@@ -529,13 +529,13 @@ do {										\
 
 /**
  * wait_event_interruptible_hrtimeout - sleep until a condition gets true or a timeout elapses
- * @wq_head: the waitqueue to wait on
+ * @wq: the waitqueue to wait on
  * @condition: a C expression for the event to wait for
  * @timeout: timeout, as a ktime_t
  *
  * The process is put to sleep (TASK_INTERRUPTIBLE) until the
  * @condition evaluates to true or a signal is received.
- * The @condition is checked each time the waitqueue @wq_head is woken up.
+ * The @condition is checked each time the waitqueue @wq is woken up.
  *
  * wake_up() has to be called after changing any variable that could
  * change the result of the wait condition.
@@ -735,12 +735,12 @@ extern int do_wait_intr_irq(wait_queue_head_t *, wait_queue_entry_t *);
 
 /**
  * wait_event_killable - sleep until a condition gets true
- * @wq: the waitqueue to wait on
+ * @wq_head: the waitqueue to wait on
  * @condition: a C expression for the event to wait for
  *
  * The process is put to sleep (TASK_KILLABLE) until the
  * @condition evaluates to true or a signal is received.
- * The @condition is checked each time the waitqueue @wq is woken up.
+ * The @condition is checked each time the waitqueue @wq_head is woken up.
  *
  * wake_up() has to be called after changing any variable that could
  * change the result of the wait condition.
@@ -757,6 +757,43 @@ extern int do_wait_intr_irq(wait_queue_head_t *, wait_queue_entry_t *);
 	__ret;									\
 })
 
+#define __wait_event_killable_timeout(wq_head, condition, timeout)		\
+	___wait_event(wq_head, ___wait_cond_timeout(condition),			\
+		      TASK_KILLABLE, 0, timeout,				\
+		      __ret = schedule_timeout(__ret))
+
+/**
+ * wait_event_killable_timeout - sleep until a condition gets true or a timeout elapses
+ * @wq_head: the waitqueue to wait on
+ * @condition: a C expression for the event to wait for
+ * @timeout: timeout, in jiffies
+ *
+ * The process is put to sleep (TASK_KILLABLE) until the
+ * @condition evaluates to true or a kill signal is received.
+ * The @condition is checked each time the waitqueue @wq_head is woken up.
+ *
+ * wake_up() has to be called after changing any variable that could
+ * change the result of the wait condition.
+ *
+ * Returns:
+ * 0 if the @condition evaluated to %false after the @timeout elapsed,
+ * 1 if the @condition evaluated to %true after the @timeout elapsed,
+ * the remaining jiffies (at least 1) if the @condition evaluated
+ * to %true before the @timeout elapsed, or -%ERESTARTSYS if it was
+ * interrupted by a kill signal.
+ *
+ * Only kill signals interrupt this process.
+ */
+#define wait_event_killable_timeout(wq_head, condition, timeout)		\
+({										\
+	long __ret = timeout;							\
+	might_sleep();								\
+	if (!___wait_cond_timeout(condition))					\
+		__ret = __wait_event_killable_timeout(wq_head,			\
+						condition, timeout);		\
+	__ret;									\
+})
+
 
 #define __wait_event_lock_irq(wq_head, condition, lock, cmd)			\
 	(void)___wait_event(wq_head, condition, TASK_UNINTERRUPTIBLE, 0, 0,	\
diff --git a/include/linux/workqueue.h b/include/linux/workqueue.h
index c102ef65cb64..db6dc9dc0482 100644
--- a/include/linux/workqueue.h
+++ b/include/linux/workqueue.h
@@ -323,6 +323,7 @@ enum {
 
 	__WQ_DRAINING		= 1 << 16, /* internal: workqueue is draining */
 	__WQ_ORDERED		= 1 << 17, /* internal: workqueue is ordered */
+	__WQ_ORDERED_EXPLICIT	= 1 << 18, /* internal: alloc_ordered_workqueue() */
 	__WQ_LEGACY		= 1 << 18, /* internal: create*_workqueue() */
 
 	WQ_MAX_ACTIVE		= 512,	  /* I like 512, better ideas? */
@@ -422,7 +423,8 @@ __alloc_workqueue_key(const char *fmt, unsigned int flags, int max_active,
  * Pointer to the allocated workqueue on success, %NULL on failure.
  */
 #define alloc_ordered_workqueue(fmt, flags, args...)			\
-	alloc_workqueue(fmt, WQ_UNBOUND | __WQ_ORDERED | (flags), 1, ##args)
+	alloc_workqueue(fmt, WQ_UNBOUND | __WQ_ORDERED |		\
+			__WQ_ORDERED_EXPLICIT | (flags), 1, ##args)
 
 #define create_workqueue(name)						\
 	alloc_workqueue("%s", __WQ_LEGACY | WQ_MEM_RECLAIM, 1, (name))
diff --git a/include/media/cec-notifier.h b/include/media/cec-notifier.h
index 298f996969df..a4f7429c4ae5 100644
--- a/include/media/cec-notifier.h
+++ b/include/media/cec-notifier.h
@@ -57,6 +57,7 @@ void cec_notifier_put(struct cec_notifier *n);
  * @pa: the CEC physical address
  *
  * Set a new CEC physical address.
+ * Does nothing if @n == NULL.
  */
 void cec_notifier_set_phys_addr(struct cec_notifier *n, u16 pa);
 
@@ -66,6 +67,7 @@ void cec_notifier_set_phys_addr(struct cec_notifier *n, u16 pa);
  * @edid: the struct edid pointer
  *
  * Parses the EDID to obtain the new CEC physical address and set it.
+ * Does nothing if @n == NULL.
  */
 void cec_notifier_set_phys_addr_from_edid(struct cec_notifier *n,
 					  const struct edid *edid);
@@ -118,4 +120,17 @@ static inline void cec_notifier_unregister(struct cec_notifier *n)
 
 #endif
 
+/**
+ * cec_notifier_phys_addr_invalidate() - set the physical address to INVALID
+ *
+ * @n: the CEC notifier
+ *
+ * This is a simple helper function to invalidate the physical
+ * address. Does nothing if @n == NULL.
+ */
+static inline void cec_notifier_phys_addr_invalidate(struct cec_notifier *n)
+{
+	cec_notifier_set_phys_addr(n, CEC_PHYS_ADDR_INVALID);
+}
+
 #endif
diff --git a/include/media/davinci/dm644x_ccdc.h b/include/media/davinci/dm644x_ccdc.h
index 7c909da29d43..6ea2ce241851 100644
--- a/include/media/davinci/dm644x_ccdc.h
+++ b/include/media/davinci/dm644x_ccdc.h
@@ -103,16 +103,6 @@ struct ccdc_black_compensation {
 	char gb;
 };
 
-/* structure for fault pixel correction */
-struct ccdc_fault_pixel {
-	/* Enable or Disable fault pixel correction */
-	unsigned char enable;
-	/* Number of fault pixel */
-	unsigned short fp_num;
-	/* Address of fault pixel table */
-	unsigned long fpc_table_addr;
-};
-
 /* Structure for CCDC configuration parameters for raw capture mode passed
  * by application
  */
@@ -125,8 +115,6 @@ struct ccdc_config_params_raw {
 	struct ccdc_black_clamp blk_clamp;
 	/* Structure for Black Compensation */
 	struct ccdc_black_compensation blk_comp;
-	/* Structure for Fault Pixel Module Configuration */
-	struct ccdc_fault_pixel fault_pxl;
 };
 
 
diff --git a/include/media/davinci/vpfe_capture.h b/include/media/davinci/vpfe_capture.h
index 8e1a4d88daa0..f003533602d0 100644
--- a/include/media/davinci/vpfe_capture.h
+++ b/include/media/davinci/vpfe_capture.h
@@ -183,14 +183,4 @@ struct vpfe_config_params {
 };
 
 #endif				/* End of __KERNEL__ */
-/**
- * VPFE_CMD_S_CCDC_RAW_PARAMS - EXPERIMENTAL IOCTL to set raw capture params
- * This can be used to configure modules such as defect pixel correction,
- * color space conversion, culling etc. This is an experimental ioctl that
- * will change in future kernels. So use this ioctl with care !
- * TODO: This is to be split into multiple ioctls and also explore the
- * possibility of extending the v4l2 api to include this
- **/
-#define VPFE_CMD_S_CCDC_RAW_PARAMS _IOW('V', BASE_VIDIOC_PRIVATE + 1, \
-					void *)
 #endif				/* _DAVINCI_VPFE_H */
diff --git a/include/net/9p/client.h b/include/net/9p/client.h
index b582339ccef5..7af9d769b97d 100644
--- a/include/net/9p/client.h
+++ b/include/net/9p/client.h
@@ -157,6 +157,18 @@ struct p9_client {
 	enum p9_trans_status status;
 	void *trans;
 
+	union {
+		struct {
+			int rfd;
+			int wfd;
+		} fd;
+		struct {
+			u16 port;
+			bool privport;
+
+		} tcp;
+	} trans_opts;
+
 	struct p9_idpool *fidpool;
 	struct list_head fidlist;
 
@@ -213,6 +225,7 @@ struct p9_dirent {
 
 struct iov_iter;
 
+int p9_show_client_options(struct seq_file *m, struct p9_client *clnt);
 int p9_client_statfs(struct p9_fid *fid, struct p9_rstatfs *sb);
 int p9_client_rename(struct p9_fid *fid, struct p9_fid *newdirfid,
 		     const char *name);
diff --git a/include/net/9p/transport.h b/include/net/9p/transport.h
index 5122b5e40f78..1625fb842ac4 100644
--- a/include/net/9p/transport.h
+++ b/include/net/9p/transport.h
@@ -62,6 +62,7 @@ struct p9_trans_module {
 	int (*cancelled)(struct p9_client *, struct p9_req_t *req);
 	int (*zc_request)(struct p9_client *, struct p9_req_t *,
 			  struct iov_iter *, struct iov_iter *, int , int, int);
+	int (*show_options)(struct seq_file *, struct p9_client *);
 };
 
 void v9fs_register_trans(struct p9_trans_module *m);
diff --git a/include/net/addrconf.h b/include/net/addrconf.h
index 6df79e96a780..f44ff2476758 100644
--- a/include/net/addrconf.h
+++ b/include/net/addrconf.h
@@ -336,6 +336,16 @@ static inline void in6_dev_put(struct inet6_dev *idev)
 		in6_dev_finish_destroy(idev);
 }
 
+static inline void in6_dev_put_clear(struct inet6_dev **pidev)
+{
+	struct inet6_dev *idev = *pidev;
+
+	if (idev) {
+		in6_dev_put(idev);
+		*pidev = NULL;
+	}
+}
+
 static inline void __in6_dev_put(struct inet6_dev *idev)
 {
 	refcount_dec(&idev->refcnt);
diff --git a/include/net/af_unix.h b/include/net/af_unix.h
index 678e4d6fa317..53b1a2cca421 100644
--- a/include/net/af_unix.h
+++ b/include/net/af_unix.h
@@ -37,7 +37,7 @@ struct unix_skb_parms {
 	u32			secid;		/* Security ID		*/
 #endif
 	u32			consumed;
-};
+} __randomize_layout;
 
 #define UNIXCB(skb) 	(*(struct unix_skb_parms *)&((skb)->cb))
 
diff --git a/include/net/bonding.h b/include/net/bonding.h
index b00508d22e0a..b2e68657a216 100644
--- a/include/net/bonding.h
+++ b/include/net/bonding.h
@@ -277,6 +277,11 @@ static inline bool bond_is_lb(const struct bonding *bond)
 	       BOND_MODE(bond) == BOND_MODE_ALB;
 }
 
+static inline bool bond_needs_speed_duplex(const struct bonding *bond)
+{
+	return BOND_MODE(bond) == BOND_MODE_8023AD || bond_is_lb(bond);
+}
+
 static inline bool bond_is_nondyn_tlb(const struct bonding *bond)
 {
 	return (BOND_MODE(bond) == BOND_MODE_TLB)  &&
diff --git a/include/net/busy_poll.h b/include/net/busy_poll.h
index 8ffd434676b7..71c72a939bf8 100644
--- a/include/net/busy_poll.h
+++ b/include/net/busy_poll.h
@@ -29,18 +29,18 @@
 #include <linux/sched/signal.h>
 #include <net/ip.h>
 
-#ifdef CONFIG_NET_RX_BUSY_POLL
-
-struct napi_struct;
-extern unsigned int sysctl_net_busy_read __read_mostly;
-extern unsigned int sysctl_net_busy_poll __read_mostly;
-
 /*		0 - Reserved to indicate value not set
  *     1..NR_CPUS - Reserved for sender_cpu
  *  NR_CPUS+1..~0 - Region available for NAPI IDs
  */
 #define MIN_NAPI_ID ((unsigned int)(NR_CPUS + 1))
 
+#ifdef CONFIG_NET_RX_BUSY_POLL
+
+struct napi_struct;
+extern unsigned int sysctl_net_busy_read __read_mostly;
+extern unsigned int sysctl_net_busy_poll __read_mostly;
+
 static inline bool net_busy_loop_on(void)
 {
 	return sysctl_net_busy_poll;
diff --git a/include/net/ip.h b/include/net/ip.h
index 821cedcc8e73..0cf7f5a65fe6 100644
--- a/include/net/ip.h
+++ b/include/net/ip.h
@@ -352,7 +352,7 @@ static inline unsigned int ip_dst_mtu_maybe_forward(const struct dst_entry *dst,
 	    !forwarding)
 		return dst_mtu(dst);
 
-	return min(dst->dev->mtu, IP_MAX_MTU);
+	return min(READ_ONCE(dst->dev->mtu), IP_MAX_MTU);
 }
 
 static inline unsigned int ip_skb_dst_mtu(struct sock *sk,
@@ -364,7 +364,7 @@ static inline unsigned int ip_skb_dst_mtu(struct sock *sk,
 		return ip_dst_mtu_maybe_forward(skb_dst(skb), forwarding);
 	}
 
-	return min(skb_dst(skb)->dev->mtu, IP_MAX_MTU);
+	return min(READ_ONCE(skb_dst(skb)->dev->mtu), IP_MAX_MTU);
 }
 
 u32 ip_idents_reserve(u32 hash, int segs);
diff --git a/include/net/mac80211.h b/include/net/mac80211.h
index b2b5419467cc..f8149ca192b4 100644
--- a/include/net/mac80211.h
+++ b/include/net/mac80211.h
@@ -5499,6 +5499,21 @@ static inline void ieee80211_stop_rx_ba_session_offl(struct ieee80211_vif *vif,
 	ieee80211_manage_rx_ba_offl(vif, addr, tid + IEEE80211_NUM_TIDS);
 }
 
+/**
+ * ieee80211_rx_ba_timer_expired - stop a Rx BA session due to timeout
+ *
+ * Some device drivers do not offload AddBa/DelBa negotiation, but handle rx
+ * buffer reording internally, and therefore also handle the session timer.
+ *
+ * Trigger the timeout flow, which sends a DelBa.
+ *
+ * @vif: &struct ieee80211_vif pointer from the add_interface callback
+ * @addr: station mac address
+ * @tid: the rx tid
+ */
+void ieee80211_rx_ba_timer_expired(struct ieee80211_vif *vif,
+				   const u8 *addr, unsigned int tid);
+
 /* Rate control API */
 
 /**
diff --git a/include/net/neighbour.h b/include/net/neighbour.h
index afc39e3a3f7c..9816df225af3 100644
--- a/include/net/neighbour.h
+++ b/include/net/neighbour.h
@@ -156,7 +156,7 @@ struct neighbour {
 	struct rcu_head		rcu;
 	struct net_device	*dev;
 	u8			primary_key[0];
-};
+} __randomize_layout;
 
 struct neigh_ops {
 	int			family;
diff --git a/include/net/net_namespace.h b/include/net/net_namespace.h
index 31a2b51bef2c..1c401bd4c2e0 100644
--- a/include/net/net_namespace.h
+++ b/include/net/net_namespace.h
@@ -148,7 +148,7 @@ struct net {
 #endif
 	struct sock		*diag_nlsk;
 	atomic_t		fnhe_genid;
-};
+} __randomize_layout;
 
 #include <linux/seq_file_net.h>
 
diff --git a/include/net/netlink.h b/include/net/netlink.h
index 01709172b3d3..ef8e6c3a80a6 100644
--- a/include/net/netlink.h
+++ b/include/net/netlink.h
@@ -98,8 +98,8 @@
  *   nla_put_u8(skb, type, value)	add u8 attribute to skb
  *   nla_put_u16(skb, type, value)	add u16 attribute to skb
  *   nla_put_u32(skb, type, value)	add u32 attribute to skb
- *   nla_put_u64_64bits(skb, type,
- *			value, padattr)	add u64 attribute to skb
+ *   nla_put_u64_64bit(skb, type,
+ *                     value, padattr)	add u64 attribute to skb
  *   nla_put_s8(skb, type, value)	add s8 attribute to skb
  *   nla_put_s16(skb, type, value)	add s16 attribute to skb
  *   nla_put_s32(skb, type, value)	add s32 attribute to skb
diff --git a/include/net/sch_generic.h b/include/net/sch_generic.h
index 1c123e2b2415..67f815e5d525 100644
--- a/include/net/sch_generic.h
+++ b/include/net/sch_generic.h
@@ -806,8 +806,11 @@ static inline struct Qdisc *qdisc_replace(struct Qdisc *sch, struct Qdisc *new,
 	old = *pold;
 	*pold = new;
 	if (old != NULL) {
-		qdisc_tree_reduce_backlog(old, old->q.qlen, old->qstats.backlog);
+		unsigned int qlen = old->q.qlen;
+		unsigned int backlog = old->qstats.backlog;
+
 		qdisc_reset(old);
+		qdisc_tree_reduce_backlog(old, qlen, backlog);
 	}
 	sch_tree_unlock(sch);
 
diff --git a/include/net/sctp/sctp.h b/include/net/sctp/sctp.h
index a9519a06a23b..45fd4c6056b5 100644
--- a/include/net/sctp/sctp.h
+++ b/include/net/sctp/sctp.h
@@ -469,6 +469,8 @@ _sctp_walk_params((pos), (chunk), ntohs((chunk)->chunk_hdr.length), member)
 
 #define _sctp_walk_params(pos, chunk, end, member)\
 for (pos.v = chunk->member;\
+     (pos.v + offsetof(struct sctp_paramhdr, length) + sizeof(pos.p->length) <=\
+      (void *)chunk + end) &&\
      pos.v <= (void *)chunk + end - ntohs(pos.p->length) &&\
      ntohs(pos.p->length) >= sizeof(struct sctp_paramhdr);\
      pos.v += SCTP_PAD4(ntohs(pos.p->length)))
@@ -479,6 +481,8 @@ _sctp_walk_errors((err), (chunk_hdr), ntohs((chunk_hdr)->length))
 #define _sctp_walk_errors(err, chunk_hdr, end)\
 for (err = (sctp_errhdr_t *)((void *)chunk_hdr + \
 	    sizeof(struct sctp_chunkhdr));\
+     ((void *)err + offsetof(sctp_errhdr_t, length) + sizeof(err->length) <=\
+      (void *)chunk_hdr + end) &&\
      (void *)err <= (void *)chunk_hdr + end - ntohs(err->length) &&\
      ntohs(err->length) >= sizeof(sctp_errhdr_t); \
      err = (sctp_errhdr_t *)((void *)err + SCTP_PAD4(ntohs(err->length))))
diff --git a/include/net/sock.h b/include/net/sock.h
index 8c85791fc196..aeeec62992ca 100644
--- a/include/net/sock.h
+++ b/include/net/sock.h
@@ -246,6 +246,7 @@ struct sock_common {
   *	@sk_policy: flow policy
   *	@sk_receive_queue: incoming packets
   *	@sk_wmem_alloc: transmit queue bytes committed
+  *	@sk_tsq_flags: TCP Small Queues flags
   *	@sk_write_queue: Packet sending queue
   *	@sk_omem_alloc: "o" is "option" or "other"
   *	@sk_wmem_queued: persistent queue size
@@ -257,6 +258,7 @@ struct sock_common {
   *	@sk_pacing_status: Pacing status (requested, handled by sch_fq)
   *	@sk_max_pacing_rate: Maximum pacing rate (%SO_MAX_PACING_RATE)
   *	@sk_sndbuf: size of send buffer in bytes
+  *	@__sk_flags_offset: empty field used to determine location of bitfield
   *	@sk_padding: unused element for alignment
   *	@sk_no_check_tx: %SO_NO_CHECK setting, set checksum in TX packets
   *	@sk_no_check_rx: allow zero checksum in RX packets
@@ -277,6 +279,7 @@ struct sock_common {
   *	@sk_drops: raw/udp drops counter
   *	@sk_ack_backlog: current listen backlog
   *	@sk_max_ack_backlog: listen backlog set in listen()
+  *	@sk_uid: user id of owner
   *	@sk_priority: %SO_PRIORITY setting
   *	@sk_type: socket type (%SOCK_STREAM, etc)
   *	@sk_protocol: which protocol this socket belongs in this network family
@@ -504,9 +507,7 @@ int sk_set_peek_off(struct sock *sk, int val);
 static inline int sk_peek_offset(struct sock *sk, int flags)
 {
 	if (unlikely(flags & MSG_PEEK)) {
-		s32 off = READ_ONCE(sk->sk_peek_off);
-		if (off >= 0)
-			return off;
+		return READ_ONCE(sk->sk_peek_off);
 	}
 
 	return 0;
@@ -1125,7 +1126,7 @@ struct proto {
 	atomic_t		socks;
 #endif
 	int			(*diag_destroy)(struct sock *sk, int err);
-};
+} __randomize_layout;
 
 int proto_register(struct proto *prot, int alloc_slab);
 void proto_unregister(struct proto *prot);
diff --git a/include/net/tcp.h b/include/net/tcp.h
index 70483296157f..ada65e767b28 100644
--- a/include/net/tcp.h
+++ b/include/net/tcp.h
@@ -1916,6 +1916,16 @@ extern void tcp_rack_advance(struct tcp_sock *tp, u8 sacked, u32 end_seq,
 			     u64 xmit_time);
 extern void tcp_rack_reo_timeout(struct sock *sk);
 
+/* At how many usecs into the future should the RTO fire? */
+static inline s64 tcp_rto_delta_us(const struct sock *sk)
+{
+	const struct sk_buff *skb = tcp_write_queue_head(sk);
+	u32 rto = inet_csk(sk)->icsk_rto;
+	u64 rto_time_stamp_us = skb->skb_mstamp + jiffies_to_usecs(rto);
+
+	return rto_time_stamp_us - tcp_sk(sk)->tcp_mstamp;
+}
+
 /*
  * Save and compile IPv4 options, return a pointer to it
  */
diff --git a/include/net/udp.h b/include/net/udp.h
index 972ce4baab6b..586de4b811b5 100644
--- a/include/net/udp.h
+++ b/include/net/udp.h
@@ -260,6 +260,7 @@ static inline struct sk_buff *skb_recv_udp(struct sock *sk, unsigned int flags,
 }
 
 void udp_v4_early_demux(struct sk_buff *skb);
+void udp_sk_rx_dst_set(struct sock *sk, struct dst_entry *dst);
 int udp_get_port(struct sock *sk, unsigned short snum,
 		 int (*saddr_cmp)(const struct sock *,
 				  const struct sock *));
@@ -305,33 +306,44 @@ struct sock *udp6_lib_lookup_skb(struct sk_buff *skb,
 /* UDP uses skb->dev_scratch to cache as much information as possible and avoid
  * possibly multiple cache miss on dequeue()
  */
-#if BITS_PER_LONG == 64
-
-/* truesize, len and the bit needed to compute skb_csum_unnecessary will be on
- * cold cache lines at recvmsg time.
- * skb->len can be stored on 16 bits since the udp header has been already
- * validated and pulled.
- */
 struct udp_dev_scratch {
-	u32 truesize;
+	/* skb->truesize and the stateless bit are embedded in a single field;
+	 * do not use a bitfield since the compiler emits better/smaller code
+	 * this way
+	 */
+	u32 _tsize_state;
+
+#if BITS_PER_LONG == 64
+	/* len and the bit needed to compute skb_csum_unnecessary
+	 * will be on cold cache lines at recvmsg time.
+	 * skb->len can be stored on 16 bits since the udp header has been
+	 * already validated and pulled.
+	 */
 	u16 len;
 	bool is_linear;
 	bool csum_unnecessary;
+#endif
 };
 
+static inline struct udp_dev_scratch *udp_skb_scratch(struct sk_buff *skb)
+{
+	return (struct udp_dev_scratch *)&skb->dev_scratch;
+}
+
+#if BITS_PER_LONG == 64
 static inline unsigned int udp_skb_len(struct sk_buff *skb)
 {
-	return ((struct udp_dev_scratch *)&skb->dev_scratch)->len;
+	return udp_skb_scratch(skb)->len;
 }
 
 static inline bool udp_skb_csum_unnecessary(struct sk_buff *skb)
 {
-	return ((struct udp_dev_scratch *)&skb->dev_scratch)->csum_unnecessary;
+	return udp_skb_scratch(skb)->csum_unnecessary;
 }
 
 static inline bool udp_skb_is_linear(struct sk_buff *skb)
 {
-	return ((struct udp_dev_scratch *)&skb->dev_scratch)->is_linear;
+	return udp_skb_scratch(skb)->is_linear;
 }
 
 #else
@@ -354,12 +366,13 @@ static inline bool udp_skb_is_linear(struct sk_buff *skb)
 static inline int copy_linear_skb(struct sk_buff *skb, int len, int off,
 				  struct iov_iter *to)
 {
-	int n, copy = len - off;
+	int n;
 
-	n = copy_to_iter(skb->data + off, copy, to);
-	if (n == copy)
+	n = copy_to_iter(skb->data + off, len, to);
+	if (n == len)
 		return 0;
 
+	iov_iter_revert(to, n);
 	return -EFAULT;
 }
 
diff --git a/include/rdma/ib_addr.h b/include/rdma/ib_addr.h
index 4b34c51f859e..b73a14edc85e 100644
--- a/include/rdma/ib_addr.h
+++ b/include/rdma/ib_addr.h
@@ -205,11 +205,13 @@ static inline void iboe_addr_get_sgid(struct rdma_dev_addr *dev_addr,
 	dev = dev_get_by_index(&init_net, dev_addr->bound_dev_if);
 	if (dev) {
 		ip4 = in_dev_get(dev);
-		if (ip4 && ip4->ifa_list && ip4->ifa_list->ifa_address) {
+		if (ip4 && ip4->ifa_list && ip4->ifa_list->ifa_address)
 			ipv6_addr_set_v4mapped(ip4->ifa_list->ifa_address,
 					       (struct in6_addr *)gid);
+
+		if (ip4)
 			in_dev_put(ip4);
-		}
+
 		dev_put(dev);
 	}
 }
diff --git a/include/rdma/ib_verbs.h b/include/rdma/ib_verbs.h
index 356953d3dbd1..b5732432bb29 100644
--- a/include/rdma/ib_verbs.h
+++ b/include/rdma/ib_verbs.h
@@ -1056,7 +1056,7 @@ enum ib_qp_create_flags {
 	IB_QP_CREATE_MANAGED_RECV               = 1 << 4,
 	IB_QP_CREATE_NETIF_QP			= 1 << 5,
 	IB_QP_CREATE_SIGNATURE_EN		= 1 << 6,
-	IB_QP_CREATE_USE_GFP_NOIO		= 1 << 7,
+	/* FREE					= 1 << 7, */
 	IB_QP_CREATE_SCATTER_FCS		= 1 << 8,
 	IB_QP_CREATE_CVLAN_STRIPPING		= 1 << 9,
 	/* reserve bits 26-31 for low level drivers' internal use */
@@ -2948,6 +2948,22 @@ struct ib_qp *ib_create_qp(struct ib_pd *pd,
 			   struct ib_qp_init_attr *qp_init_attr);
 
 /**
+ * ib_modify_qp_with_udata - Modifies the attributes for the specified QP.
+ * @qp: The QP to modify.
+ * @attr: On input, specifies the QP attributes to modify.  On output,
+ *   the current values of selected QP attributes are returned.
+ * @attr_mask: A bit-mask used to specify which attributes of the QP
+ *   are being modified.
+ * @udata: pointer to user's input output buffer information
+ *   are being modified.
+ * It returns 0 on success and returns appropriate error code on error.
+ */
+int ib_modify_qp_with_udata(struct ib_qp *qp,
+			    struct ib_qp_attr *attr,
+			    int attr_mask,
+			    struct ib_udata *udata);
+
+/**
  * ib_modify_qp - Modifies the attributes for the specified QP and then
  *   transitions the QP to the given state.
  * @qp: The QP to modify.
diff --git a/include/rdma/rdma_vt.h b/include/rdma/rdma_vt.h
index 4878aaf7bdff..55af69271053 100644
--- a/include/rdma/rdma_vt.h
+++ b/include/rdma/rdma_vt.h
@@ -229,8 +229,7 @@ struct rvt_driver_provided {
 	 * ERR_PTR(err).  The driver is free to return NULL or a valid
 	 * pointer.
 	 */
-	void * (*qp_priv_alloc)(struct rvt_dev_info *rdi, struct rvt_qp *qp,
-				gfp_t gfp);
+	void * (*qp_priv_alloc)(struct rvt_dev_info *rdi, struct rvt_qp *qp);
 
 	/*
 	 * Free the driver's private qp structure.
@@ -319,7 +318,7 @@ struct rvt_driver_provided {
 
 	/* Let the driver pick the next queue pair number*/
 	int (*alloc_qpn)(struct rvt_dev_info *rdi, struct rvt_qpn_table *qpt,
-			 enum ib_qp_type type, u8 port_num, gfp_t gfp);
+			 enum ib_qp_type type, u8 port_num);
 
 	/* Determine if its safe or allowed to modify the qp */
 	int (*check_modify_qp)(struct rvt_qp *qp, struct ib_qp_attr *attr,
diff --git a/include/rdma/rdmavt_qp.h b/include/rdma/rdmavt_qp.h
index be6472e5b06b..d664d2e76280 100644
--- a/include/rdma/rdmavt_qp.h
+++ b/include/rdma/rdmavt_qp.h
@@ -647,6 +647,20 @@ static inline u32 rvt_div_mtu(struct rvt_qp *qp, u32 len)
 	return len >> qp->log_pmtu;
 }
 
+/**
+ * rvt_timeout_to_jiffies - Convert a ULP timeout input into jiffies
+ * @timeout - timeout input(0 - 31).
+ *
+ * Return a timeout value in jiffies.
+ */
+static inline unsigned long rvt_timeout_to_jiffies(u8 timeout)
+{
+	if (timeout > 31)
+		timeout = 31;
+
+	return usecs_to_jiffies(1U << timeout) * 4096UL / 1000UL;
+}
+
 extern const int  ib_rvt_state_ops[];
 
 struct rvt_dev_info;
diff --git a/include/scsi/scsi_proto.h b/include/scsi/scsi_proto.h
index 8260700d662b..8c285d9a06d8 100644
--- a/include/scsi/scsi_proto.h
+++ b/include/scsi/scsi_proto.h
@@ -158,6 +158,7 @@
 #define READ_32		      0x09
 #define VERIFY_32	      0x0a
 #define WRITE_32	      0x0b
+#define WRITE_VERIFY_32	      0x0c
 #define WRITE_SAME_32	      0x0d
 #define ATA_32		      0x1ff0
 
diff --git a/include/sound/soc.h b/include/sound/soc.h
index 9c94b97c17f8..c4a8b1947566 100644
--- a/include/sound/soc.h
+++ b/include/sound/soc.h
@@ -795,10 +795,6 @@ struct snd_soc_component_driver {
 	int (*suspend)(struct snd_soc_component *);
 	int (*resume)(struct snd_soc_component *);
 
-	/* pcm creation and destruction */
-	int (*pcm_new)(struct snd_soc_pcm_runtime *);
-	void (*pcm_free)(struct snd_pcm *);
-
 	/* DT */
 	int (*of_xlate_dai_name)(struct snd_soc_component *component,
 				 struct of_phandle_args *args,
@@ -874,8 +870,6 @@ struct snd_soc_component {
 	void (*remove)(struct snd_soc_component *);
 	int (*suspend)(struct snd_soc_component *);
 	int (*resume)(struct snd_soc_component *);
-	int (*pcm_new)(struct snd_soc_pcm_runtime *);
-	void (*pcm_free)(struct snd_pcm *);
 
 	/* machine specific init */
 	int (*init)(struct snd_soc_component *component);
diff --git a/include/target/iscsi/iscsi_target_core.h b/include/target/iscsi/iscsi_target_core.h
index 5f17fb770477..fb87d32f5e51 100644
--- a/include/target/iscsi/iscsi_target_core.h
+++ b/include/target/iscsi/iscsi_target_core.h
@@ -66,6 +66,14 @@ struct sock;
 #define TA_DEFAULT_FABRIC_PROT_TYPE	0
 /* TPG status needs to be enabled to return sendtargets discovery endpoint info */
 #define TA_DEFAULT_TPG_ENABLED_SENDTARGETS 1
+/*
+ * Used to control the sending of keys with optional to respond state bit,
+ * as a workaround for non RFC compliant initiators,that do not propose,
+ * nor respond to specific keys required for login to complete.
+ *
+ * See iscsi_check_proposer_for_optional_reply() for more details.
+ */
+#define TA_DEFAULT_LOGIN_KEYS_WORKAROUND 1
 
 #define ISCSI_IOV_DATA_BUFFER		5
 
@@ -560,7 +568,6 @@ struct iscsi_conn {
 #define LOGIN_FLAGS_INITIAL_PDU		8
 	unsigned long		login_flags;
 	struct delayed_work	login_work;
-	struct delayed_work	login_cleanup_work;
 	struct iscsi_login	*login;
 	struct timer_list	nopin_timer;
 	struct timer_list	nopin_response_timer;
@@ -769,6 +776,7 @@ struct iscsi_tpg_attrib {
 	u8			t10_pi;
 	u32			fabric_prot_type;
 	u32			tpg_enabled_sendtargets;
+	u32			login_keys_workaround;
 	struct iscsi_portal_group *tpg;
 };
 
@@ -778,6 +786,7 @@ struct iscsi_np {
 	int			np_sock_type;
 	enum np_thread_state_table np_thread_state;
 	bool                    enabled;
+	atomic_t		np_reset_count;
 	enum iscsi_timer_flags_table np_login_timer_flags;
 	u32			np_exports;
 	enum np_flags_table	np_flags;
diff --git a/include/target/target_core_backend.h b/include/target/target_core_backend.h
index e475531565fd..e150e391878b 100644
--- a/include/target/target_core_backend.h
+++ b/include/target/target_core_backend.h
@@ -2,6 +2,7 @@
 #define TARGET_CORE_BACKEND_H
 
 #include <linux/types.h>
+#include <asm/unaligned.h>
 #include <target/target_core_base.h>
 
 #define TRANSPORT_FLAG_PASSTHROUGH		0x1
@@ -29,16 +30,13 @@ struct target_backend_ops {
 
 	struct se_device *(*alloc_device)(struct se_hba *, const char *);
 	int (*configure_device)(struct se_device *);
+	void (*destroy_device)(struct se_device *);
 	void (*free_device)(struct se_device *device);
 
 	ssize_t (*set_configfs_dev_params)(struct se_device *,
 					   const char *, ssize_t);
 	ssize_t (*show_configfs_dev_params)(struct se_device *, char *);
 
-	void (*transport_complete)(struct se_cmd *cmd,
-				   struct scatterlist *,
-				   unsigned char *);
-
 	sense_reason_t (*parse_cdb)(struct se_cmd *cmd);
 	u32 (*get_device_type)(struct se_device *);
 	sector_t (*get_blocks)(struct se_device *);
@@ -71,6 +69,8 @@ void	target_backend_unregister(const struct target_backend_ops *);
 void	target_complete_cmd(struct se_cmd *, u8);
 void	target_complete_cmd_with_length(struct se_cmd *, u8, int);
 
+void	transport_copy_sense_to_cmd(struct se_cmd *, unsigned char *);
+
 sense_reason_t	spc_parse_cdb(struct se_cmd *cmd, unsigned int *size);
 sense_reason_t	spc_emulate_report_luns(struct se_cmd *cmd);
 sense_reason_t	spc_emulate_inquiry_std(struct se_cmd *, unsigned char *);
@@ -104,9 +104,18 @@ bool	target_lun_is_rdonly(struct se_cmd *);
 sense_reason_t passthrough_parse_cdb(struct se_cmd *cmd,
 	sense_reason_t (*exec_cmd)(struct se_cmd *cmd));
 
+struct	se_device *target_find_device(int id, bool do_depend);
+
 bool target_sense_desc_format(struct se_device *dev);
 sector_t target_to_linux_sector(struct se_device *dev, sector_t lb);
 bool target_configure_unmap_from_queue(struct se_dev_attrib *attrib,
 				       struct request_queue *q);
 
+
+/* Only use get_unaligned_be24() if reading p - 1 is allowed. */
+static inline uint32_t get_unaligned_be24(const uint8_t *const p)
+{
+	return get_unaligned_be32(p - 1) & 0xffffffU;
+}
+
 #endif /* TARGET_CORE_BACKEND_H */
diff --git a/include/target/target_core_base.h b/include/target/target_core_base.h
index 0c1dce2ac6f0..516764febeb7 100644
--- a/include/target/target_core_base.h
+++ b/include/target/target_core_base.h
@@ -188,7 +188,8 @@ enum target_sc_flags_table {
 	TARGET_SCF_BIDI_OP		= 0x01,
 	TARGET_SCF_ACK_KREF		= 0x02,
 	TARGET_SCF_UNKNOWN_SIZE		= 0x04,
-	TARGET_SCF_USE_CPUID	= 0x08,
+	TARGET_SCF_USE_CPUID		= 0x08,
+	TARGET_SCF_LOOKUP_LUN_FROM_TAG	= 0x10,
 };
 
 /* fabric independent task management function values */
@@ -218,7 +219,6 @@ enum tcm_tmrsp_table {
  */
 typedef enum {
 	SCSI_INST_INDEX,
-	SCSI_DEVICE_INDEX,
 	SCSI_AUTH_INTR_INDEX,
 	SCSI_INDEX_TYPE_MAX
 } scsi_index_t;
@@ -701,8 +701,6 @@ struct scsi_port_stats {
 
 struct se_lun {
 	u64			unpacked_lun;
-#define SE_LUN_LINK_MAGIC			0xffff7771
-	u32			lun_link_magic;
 	bool			lun_shutdown;
 	bool			lun_access_ro;
 	u32			lun_index;
@@ -746,8 +744,6 @@ struct se_dev_stat_grps {
 };
 
 struct se_device {
-#define SE_DEV_LINK_MAGIC			0xfeeddeef
-	u32			dev_link_magic;
 	/* RELATIVE TARGET PORT IDENTIFER Counter */
 	u16			dev_rpti_counter;
 	/* Used for SAM Task Attribute ordering */
@@ -800,7 +796,6 @@ struct se_device {
 	struct list_head	delayed_cmd_list;
 	struct list_head	state_list;
 	struct list_head	qf_cmd_list;
-	struct list_head	g_dev_node;
 	/* Pointer to associated SE HBA */
 	struct se_hba		*se_hba;
 	/* T10 Inquiry and VPD WWN Information */
@@ -819,8 +814,6 @@ struct se_device {
 	unsigned char		udev_path[SE_UDEV_PATH_LEN];
 	/* Pointer to template of function pointers for transport */
 	const struct target_backend_ops *transport;
-	/* Linked list for struct se_hba struct se_device list */
-	struct list_head	dev_list;
 	struct se_lun		xcopy_lun;
 	/* Protection Information */
 	int			prot_length;
diff --git a/include/target/target_core_fabric.h b/include/target/target_core_fabric.h
index d7dd1427fe0d..33d2e3e5773c 100644
--- a/include/target/target_core_fabric.h
+++ b/include/target/target_core_fabric.h
@@ -160,6 +160,7 @@ int	target_get_sess_cmd(struct se_cmd *, bool);
 int	target_put_sess_cmd(struct se_cmd *);
 void	target_sess_cmd_list_set_waiting(struct se_session *);
 void	target_wait_for_sess_cmds(struct se_session *);
+void	target_show_cmd(const char *pfx, struct se_cmd *cmd);
 
 int	core_alua_check_nonop_delay(struct se_cmd *);
 
diff --git a/include/trace/events/ext4.h b/include/trace/events/ext4.h
index dfae175ddebc..9c3bc3883d2f 100644
--- a/include/trace/events/ext4.h
+++ b/include/trace/events/ext4.h
@@ -937,21 +937,19 @@ TRACE_EVENT(ext4_alloc_da_blocks,
 	TP_STRUCT__entry(
 		__field(	dev_t,	dev			)
 		__field(	ino_t,	ino			)
-		__field( unsigned int,	data_blocks	)
-		__field( unsigned int,	meta_blocks	)
+		__field( unsigned int,	data_blocks		)
 	),
 
 	TP_fast_assign(
 		__entry->dev	= inode->i_sb->s_dev;
 		__entry->ino	= inode->i_ino;
 		__entry->data_blocks = EXT4_I(inode)->i_reserved_data_blocks;
-		__entry->meta_blocks = EXT4_I(inode)->i_reserved_meta_blocks;
 	),
 
-	TP_printk("dev %d,%d ino %lu data_blocks %u meta_blocks %u",
+	TP_printk("dev %d,%d ino %lu reserved_data_blocks %u",
 		  MAJOR(__entry->dev), MINOR(__entry->dev),
 		  (unsigned long) __entry->ino,
-		  __entry->data_blocks, __entry->meta_blocks)
+		  __entry->data_blocks)
 );
 
 TRACE_EVENT(ext4_mballoc_alloc,
@@ -1153,8 +1151,6 @@ TRACE_EVENT(ext4_da_update_reserve_space,
 		__field(	__u64,	i_blocks		)
 		__field(	int,	used_blocks		)
 		__field(	int,	reserved_data_blocks	)
-		__field(	int,	reserved_meta_blocks	)
-		__field(	int,	allocated_meta_blocks	)
 		__field(	int,	quota_claim		)
 		__field(	__u16,	mode			)
 	),
@@ -1166,22 +1162,16 @@ TRACE_EVENT(ext4_da_update_reserve_space,
 		__entry->used_blocks = used_blocks;
 		__entry->reserved_data_blocks =
 				EXT4_I(inode)->i_reserved_data_blocks;
-		__entry->reserved_meta_blocks =
-				EXT4_I(inode)->i_reserved_meta_blocks;
-		__entry->allocated_meta_blocks =
-				EXT4_I(inode)->i_allocated_meta_blocks;
 		__entry->quota_claim = quota_claim;
 		__entry->mode	= inode->i_mode;
 	),
 
 	TP_printk("dev %d,%d ino %lu mode 0%o i_blocks %llu used_blocks %d "
-		  "reserved_data_blocks %d reserved_meta_blocks %d "
-		  "allocated_meta_blocks %d quota_claim %d",
+		  "reserved_data_blocks %d quota_claim %d",
 		  MAJOR(__entry->dev), MINOR(__entry->dev),
 		  (unsigned long) __entry->ino,
 		  __entry->mode, __entry->i_blocks,
 		  __entry->used_blocks, __entry->reserved_data_blocks,
-		  __entry->reserved_meta_blocks, __entry->allocated_meta_blocks,
 		  __entry->quota_claim)
 );
 
@@ -1195,7 +1185,6 @@ TRACE_EVENT(ext4_da_reserve_space,
 		__field(	ino_t,	ino			)
 		__field(	__u64,	i_blocks		)
 		__field(	int,	reserved_data_blocks	)
-		__field(	int,	reserved_meta_blocks	)
 		__field(	__u16,  mode			)
 	),
 
@@ -1204,17 +1193,15 @@ TRACE_EVENT(ext4_da_reserve_space,
 		__entry->ino	= inode->i_ino;
 		__entry->i_blocks = inode->i_blocks;
 		__entry->reserved_data_blocks = EXT4_I(inode)->i_reserved_data_blocks;
-		__entry->reserved_meta_blocks = EXT4_I(inode)->i_reserved_meta_blocks;
 		__entry->mode	= inode->i_mode;
 	),
 
 	TP_printk("dev %d,%d ino %lu mode 0%o i_blocks %llu "
-		  "reserved_data_blocks %d reserved_meta_blocks %d",
+		  "reserved_data_blocks %d",
 		  MAJOR(__entry->dev), MINOR(__entry->dev),
 		  (unsigned long) __entry->ino,
 		  __entry->mode, __entry->i_blocks,
-		  __entry->reserved_data_blocks,
-		  __entry->reserved_meta_blocks)
+		  __entry->reserved_data_blocks)
 );
 
 TRACE_EVENT(ext4_da_release_space,
@@ -1228,8 +1215,6 @@ TRACE_EVENT(ext4_da_release_space,
 		__field(	__u64,	i_blocks		)
 		__field(	int,	freed_blocks		)
 		__field(	int,	reserved_data_blocks	)
-		__field(	int,	reserved_meta_blocks	)
-		__field(	int,	allocated_meta_blocks	)
 		__field(	__u16,  mode			)
 	),
 
@@ -1239,19 +1224,15 @@ TRACE_EVENT(ext4_da_release_space,
 		__entry->i_blocks = inode->i_blocks;
 		__entry->freed_blocks = freed_blocks;
 		__entry->reserved_data_blocks = EXT4_I(inode)->i_reserved_data_blocks;
-		__entry->reserved_meta_blocks = EXT4_I(inode)->i_reserved_meta_blocks;
-		__entry->allocated_meta_blocks = EXT4_I(inode)->i_allocated_meta_blocks;
 		__entry->mode	= inode->i_mode;
 	),
 
 	TP_printk("dev %d,%d ino %lu mode 0%o i_blocks %llu freed_blocks %d "
-		  "reserved_data_blocks %d reserved_meta_blocks %d "
-		  "allocated_meta_blocks %d",
+		  "reserved_data_blocks %d",
 		  MAJOR(__entry->dev), MINOR(__entry->dev),
 		  (unsigned long) __entry->ino,
 		  __entry->mode, __entry->i_blocks,
-		  __entry->freed_blocks, __entry->reserved_data_blocks,
-		  __entry->reserved_meta_blocks, __entry->allocated_meta_blocks)
+		  __entry->freed_blocks, __entry->reserved_data_blocks)
 );
 
 DECLARE_EVENT_CLASS(ext4__bitmap_load,
diff --git a/include/trace/events/i2c.h b/include/trace/events/i2c.h
index 4abb8eab34d3..86a401190df9 100644
--- a/include/trace/events/i2c.h
+++ b/include/trace/events/i2c.h
@@ -1,4 +1,4 @@
-/* I2C and SMBUS message transfer tracepoints
+/* I2C message transfer tracepoints
  *
  * Copyright (C) 2013 Red Hat, Inc. All Rights Reserved.
  * Written by David Howells (dhowells@redhat.com)
@@ -18,7 +18,7 @@
 #include <linux/tracepoint.h>
 
 /*
- * drivers/i2c/i2c-core.c
+ * drivers/i2c/i2c-core-base.c
  */
 extern int i2c_transfer_trace_reg(void);
 extern void i2c_transfer_trace_unreg(void);
@@ -144,228 +144,6 @@ TRACE_EVENT_FN(i2c_result,
 	       i2c_transfer_trace_reg,
 	       i2c_transfer_trace_unreg);
 
-/*
- * i2c_smbus_xfer() write data or procedure call request
- */
-TRACE_EVENT_CONDITION(smbus_write,
-	TP_PROTO(const struct i2c_adapter *adap,
-		 u16 addr, unsigned short flags,
-		 char read_write, u8 command, int protocol,
-		 const union i2c_smbus_data *data),
-	TP_ARGS(adap, addr, flags, read_write, command, protocol, data),
-	TP_CONDITION(read_write == I2C_SMBUS_WRITE ||
-		     protocol == I2C_SMBUS_PROC_CALL ||
-		     protocol == I2C_SMBUS_BLOCK_PROC_CALL),
-	TP_STRUCT__entry(
-		__field(int,	adapter_nr		)
-		__field(__u16,	addr			)
-		__field(__u16,	flags			)
-		__field(__u8,	command			)
-		__field(__u8,	len			)
-		__field(__u32,	protocol		)
-		__array(__u8, buf, I2C_SMBUS_BLOCK_MAX + 2)	),
-	TP_fast_assign(
-		__entry->adapter_nr = adap->nr;
-		__entry->addr = addr;
-		__entry->flags = flags;
-		__entry->command = command;
-		__entry->protocol = protocol;
-
-		switch (protocol) {
-		case I2C_SMBUS_BYTE_DATA:
-			__entry->len = 1;
-			goto copy;
-		case I2C_SMBUS_WORD_DATA:
-		case I2C_SMBUS_PROC_CALL:
-			__entry->len = 2;
-			goto copy;
-		case I2C_SMBUS_BLOCK_DATA:
-		case I2C_SMBUS_BLOCK_PROC_CALL:
-		case I2C_SMBUS_I2C_BLOCK_DATA:
-			__entry->len = data->block[0] + 1;
-		copy:
-			memcpy(__entry->buf, data->block, __entry->len);
-			break;
-		case I2C_SMBUS_QUICK:
-		case I2C_SMBUS_BYTE:
-		case I2C_SMBUS_I2C_BLOCK_BROKEN:
-		default:
-			__entry->len = 0;
-		}
-		       ),
-	TP_printk("i2c-%d a=%03x f=%04x c=%x %s l=%u [%*phD]",
-		  __entry->adapter_nr,
-		  __entry->addr,
-		  __entry->flags,
-		  __entry->command,
-		  __print_symbolic(__entry->protocol,
-				   { I2C_SMBUS_QUICK,		"QUICK"	},
-				   { I2C_SMBUS_BYTE,		"BYTE"	},
-				   { I2C_SMBUS_BYTE_DATA,		"BYTE_DATA" },
-				   { I2C_SMBUS_WORD_DATA,		"WORD_DATA" },
-				   { I2C_SMBUS_PROC_CALL,		"PROC_CALL" },
-				   { I2C_SMBUS_BLOCK_DATA,		"BLOCK_DATA" },
-				   { I2C_SMBUS_I2C_BLOCK_BROKEN,	"I2C_BLOCK_BROKEN" },
-				   { I2C_SMBUS_BLOCK_PROC_CALL,	"BLOCK_PROC_CALL" },
-				   { I2C_SMBUS_I2C_BLOCK_DATA,	"I2C_BLOCK_DATA" }),
-		  __entry->len,
-		  __entry->len, __entry->buf
-		  ));
-
-/*
- * i2c_smbus_xfer() read data request
- */
-TRACE_EVENT_CONDITION(smbus_read,
-	TP_PROTO(const struct i2c_adapter *adap,
-		 u16 addr, unsigned short flags,
-		 char read_write, u8 command, int protocol),
-	TP_ARGS(adap, addr, flags, read_write, command, protocol),
-	TP_CONDITION(!(read_write == I2C_SMBUS_WRITE ||
-		       protocol == I2C_SMBUS_PROC_CALL ||
-		       protocol == I2C_SMBUS_BLOCK_PROC_CALL)),
-	TP_STRUCT__entry(
-		__field(int,	adapter_nr		)
-		__field(__u16,	flags			)
-		__field(__u16,	addr			)
-		__field(__u8,	command			)
-		__field(__u32,	protocol		)
-		__array(__u8, buf, I2C_SMBUS_BLOCK_MAX + 2)	),
-	TP_fast_assign(
-		__entry->adapter_nr = adap->nr;
-		__entry->addr = addr;
-		__entry->flags = flags;
-		__entry->command = command;
-		__entry->protocol = protocol;
-		       ),
-	TP_printk("i2c-%d a=%03x f=%04x c=%x %s",
-		  __entry->adapter_nr,
-		  __entry->addr,
-		  __entry->flags,
-		  __entry->command,
-		  __print_symbolic(__entry->protocol,
-				   { I2C_SMBUS_QUICK,		"QUICK"	},
-				   { I2C_SMBUS_BYTE,		"BYTE"	},
-				   { I2C_SMBUS_BYTE_DATA,		"BYTE_DATA" },
-				   { I2C_SMBUS_WORD_DATA,		"WORD_DATA" },
-				   { I2C_SMBUS_PROC_CALL,		"PROC_CALL" },
-				   { I2C_SMBUS_BLOCK_DATA,		"BLOCK_DATA" },
-				   { I2C_SMBUS_I2C_BLOCK_BROKEN,	"I2C_BLOCK_BROKEN" },
-				   { I2C_SMBUS_BLOCK_PROC_CALL,	"BLOCK_PROC_CALL" },
-				   { I2C_SMBUS_I2C_BLOCK_DATA,	"I2C_BLOCK_DATA" })
-		  ));
-
-/*
- * i2c_smbus_xfer() read data or procedure call reply
- */
-TRACE_EVENT_CONDITION(smbus_reply,
-	TP_PROTO(const struct i2c_adapter *adap,
-		 u16 addr, unsigned short flags,
-		 char read_write, u8 command, int protocol,
-		 const union i2c_smbus_data *data),
-	TP_ARGS(adap, addr, flags, read_write, command, protocol, data),
-	TP_CONDITION(read_write == I2C_SMBUS_READ),
-	TP_STRUCT__entry(
-		__field(int,	adapter_nr		)
-		__field(__u16,	addr			)
-		__field(__u16,	flags			)
-		__field(__u8,	command			)
-		__field(__u8,	len			)
-		__field(__u32,	protocol		)
-		__array(__u8, buf, I2C_SMBUS_BLOCK_MAX + 2)	),
-	TP_fast_assign(
-		__entry->adapter_nr = adap->nr;
-		__entry->addr = addr;
-		__entry->flags = flags;
-		__entry->command = command;
-		__entry->protocol = protocol;
-
-		switch (protocol) {
-		case I2C_SMBUS_BYTE:
-		case I2C_SMBUS_BYTE_DATA:
-			__entry->len = 1;
-			goto copy;
-		case I2C_SMBUS_WORD_DATA:
-		case I2C_SMBUS_PROC_CALL:
-			__entry->len = 2;
-			goto copy;
-		case I2C_SMBUS_BLOCK_DATA:
-		case I2C_SMBUS_BLOCK_PROC_CALL:
-		case I2C_SMBUS_I2C_BLOCK_DATA:
-			__entry->len = data->block[0] + 1;
-		copy:
-			memcpy(__entry->buf, data->block, __entry->len);
-			break;
-		case I2C_SMBUS_QUICK:
-		case I2C_SMBUS_I2C_BLOCK_BROKEN:
-		default:
-			__entry->len = 0;
-		}
-		       ),
-	TP_printk("i2c-%d a=%03x f=%04x c=%x %s l=%u [%*phD]",
-		  __entry->adapter_nr,
-		  __entry->addr,
-		  __entry->flags,
-		  __entry->command,
-		  __print_symbolic(__entry->protocol,
-				   { I2C_SMBUS_QUICK,		"QUICK"	},
-				   { I2C_SMBUS_BYTE,		"BYTE"	},
-				   { I2C_SMBUS_BYTE_DATA,		"BYTE_DATA" },
-				   { I2C_SMBUS_WORD_DATA,		"WORD_DATA" },
-				   { I2C_SMBUS_PROC_CALL,		"PROC_CALL" },
-				   { I2C_SMBUS_BLOCK_DATA,		"BLOCK_DATA" },
-				   { I2C_SMBUS_I2C_BLOCK_BROKEN,	"I2C_BLOCK_BROKEN" },
-				   { I2C_SMBUS_BLOCK_PROC_CALL,	"BLOCK_PROC_CALL" },
-				   { I2C_SMBUS_I2C_BLOCK_DATA,	"I2C_BLOCK_DATA" }),
-		  __entry->len,
-		  __entry->len, __entry->buf
-		  ));
-
-/*
- * i2c_smbus_xfer() result
- */
-TRACE_EVENT(smbus_result,
-	    TP_PROTO(const struct i2c_adapter *adap,
-		     u16 addr, unsigned short flags,
-		     char read_write, u8 command, int protocol,
-		     int res),
-	    TP_ARGS(adap, addr, flags, read_write, command, protocol, res),
-	    TP_STRUCT__entry(
-		    __field(int,	adapter_nr		)
-		    __field(__u16,	addr			)
-		    __field(__u16,	flags			)
-		    __field(__u8,	read_write		)
-		    __field(__u8,	command			)
-		    __field(__s16,	res			)
-		    __field(__u32,	protocol		)
-			     ),
-	    TP_fast_assign(
-		    __entry->adapter_nr = adap->nr;
-		    __entry->addr = addr;
-		    __entry->flags = flags;
-		    __entry->read_write = read_write;
-		    __entry->command = command;
-		    __entry->protocol = protocol;
-		    __entry->res = res;
-			   ),
-	    TP_printk("i2c-%d a=%03x f=%04x c=%x %s %s res=%d",
-		      __entry->adapter_nr,
-		      __entry->addr,
-		      __entry->flags,
-		      __entry->command,
-		      __print_symbolic(__entry->protocol,
-				       { I2C_SMBUS_QUICK,		"QUICK"	},
-				       { I2C_SMBUS_BYTE,		"BYTE"	},
-				       { I2C_SMBUS_BYTE_DATA,		"BYTE_DATA" },
-				       { I2C_SMBUS_WORD_DATA,		"WORD_DATA" },
-				       { I2C_SMBUS_PROC_CALL,		"PROC_CALL" },
-				       { I2C_SMBUS_BLOCK_DATA,		"BLOCK_DATA" },
-				       { I2C_SMBUS_I2C_BLOCK_BROKEN,	"I2C_BLOCK_BROKEN" },
-				       { I2C_SMBUS_BLOCK_PROC_CALL,	"BLOCK_PROC_CALL" },
-				       { I2C_SMBUS_I2C_BLOCK_DATA,	"I2C_BLOCK_DATA" }),
-		      __entry->read_write == I2C_SMBUS_WRITE ? "wr" : "rd",
-		      __entry->res
-		      ));
-
 #endif /* _TRACE_I2C_H */
 
 /* This part must be outside protection */
diff --git a/include/trace/events/mmflags.h b/include/trace/events/mmflags.h
index 10e3663a75a6..8e50d01c645f 100644
--- a/include/trace/events/mmflags.h
+++ b/include/trace/events/mmflags.h
@@ -34,7 +34,7 @@
 	{(unsigned long)__GFP_FS,		"__GFP_FS"},		\
 	{(unsigned long)__GFP_COLD,		"__GFP_COLD"},		\
 	{(unsigned long)__GFP_NOWARN,		"__GFP_NOWARN"},	\
-	{(unsigned long)__GFP_REPEAT,		"__GFP_REPEAT"},	\
+	{(unsigned long)__GFP_RETRY_MAYFAIL,	"__GFP_RETRY_MAYFAIL"},	\
 	{(unsigned long)__GFP_NOFAIL,		"__GFP_NOFAIL"},	\
 	{(unsigned long)__GFP_NORETRY,		"__GFP_NORETRY"},	\
 	{(unsigned long)__GFP_COMP,		"__GFP_COMP"},		\
diff --git a/include/trace/events/smbus.h b/include/trace/events/smbus.h
new file mode 100644
index 000000000000..d2fb6e1d3e10
--- /dev/null
+++ b/include/trace/events/smbus.h
@@ -0,0 +1,249 @@
+/* SMBUS message transfer tracepoints
+ *
+ * Copyright (C) 2013 Red Hat, Inc. All Rights Reserved.
+ * Written by David Howells (dhowells@redhat.com)
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public Licence
+ * as published by the Free Software Foundation; either version
+ * 2 of the Licence, or (at your option) any later version.
+ */
+#undef TRACE_SYSTEM
+#define TRACE_SYSTEM smbus
+
+#if !defined(_TRACE_SMBUS_H) || defined(TRACE_HEADER_MULTI_READ)
+#define _TRACE_SMBUS_H
+
+#include <linux/i2c.h>
+#include <linux/tracepoint.h>
+
+/*
+ * drivers/i2c/i2c-core-smbus.c
+ */
+
+/*
+ * i2c_smbus_xfer() write data or procedure call request
+ */
+TRACE_EVENT_CONDITION(smbus_write,
+	TP_PROTO(const struct i2c_adapter *adap,
+		 u16 addr, unsigned short flags,
+		 char read_write, u8 command, int protocol,
+		 const union i2c_smbus_data *data),
+	TP_ARGS(adap, addr, flags, read_write, command, protocol, data),
+	TP_CONDITION(read_write == I2C_SMBUS_WRITE ||
+		     protocol == I2C_SMBUS_PROC_CALL ||
+		     protocol == I2C_SMBUS_BLOCK_PROC_CALL),
+	TP_STRUCT__entry(
+		__field(int,	adapter_nr		)
+		__field(__u16,	addr			)
+		__field(__u16,	flags			)
+		__field(__u8,	command			)
+		__field(__u8,	len			)
+		__field(__u32,	protocol		)
+		__array(__u8, buf, I2C_SMBUS_BLOCK_MAX + 2)	),
+	TP_fast_assign(
+		__entry->adapter_nr = adap->nr;
+		__entry->addr = addr;
+		__entry->flags = flags;
+		__entry->command = command;
+		__entry->protocol = protocol;
+
+		switch (protocol) {
+		case I2C_SMBUS_BYTE_DATA:
+			__entry->len = 1;
+			goto copy;
+		case I2C_SMBUS_WORD_DATA:
+		case I2C_SMBUS_PROC_CALL:
+			__entry->len = 2;
+			goto copy;
+		case I2C_SMBUS_BLOCK_DATA:
+		case I2C_SMBUS_BLOCK_PROC_CALL:
+		case I2C_SMBUS_I2C_BLOCK_DATA:
+			__entry->len = data->block[0] + 1;
+		copy:
+			memcpy(__entry->buf, data->block, __entry->len);
+			break;
+		case I2C_SMBUS_QUICK:
+		case I2C_SMBUS_BYTE:
+		case I2C_SMBUS_I2C_BLOCK_BROKEN:
+		default:
+			__entry->len = 0;
+		}
+		       ),
+	TP_printk("i2c-%d a=%03x f=%04x c=%x %s l=%u [%*phD]",
+		  __entry->adapter_nr,
+		  __entry->addr,
+		  __entry->flags,
+		  __entry->command,
+		  __print_symbolic(__entry->protocol,
+				   { I2C_SMBUS_QUICK,		"QUICK"	},
+				   { I2C_SMBUS_BYTE,		"BYTE"	},
+				   { I2C_SMBUS_BYTE_DATA,		"BYTE_DATA" },
+				   { I2C_SMBUS_WORD_DATA,		"WORD_DATA" },
+				   { I2C_SMBUS_PROC_CALL,		"PROC_CALL" },
+				   { I2C_SMBUS_BLOCK_DATA,		"BLOCK_DATA" },
+				   { I2C_SMBUS_I2C_BLOCK_BROKEN,	"I2C_BLOCK_BROKEN" },
+				   { I2C_SMBUS_BLOCK_PROC_CALL,	"BLOCK_PROC_CALL" },
+				   { I2C_SMBUS_I2C_BLOCK_DATA,	"I2C_BLOCK_DATA" }),
+		  __entry->len,
+		  __entry->len, __entry->buf
+		  ));
+
+/*
+ * i2c_smbus_xfer() read data request
+ */
+TRACE_EVENT_CONDITION(smbus_read,
+	TP_PROTO(const struct i2c_adapter *adap,
+		 u16 addr, unsigned short flags,
+		 char read_write, u8 command, int protocol),
+	TP_ARGS(adap, addr, flags, read_write, command, protocol),
+	TP_CONDITION(!(read_write == I2C_SMBUS_WRITE ||
+		       protocol == I2C_SMBUS_PROC_CALL ||
+		       protocol == I2C_SMBUS_BLOCK_PROC_CALL)),
+	TP_STRUCT__entry(
+		__field(int,	adapter_nr		)
+		__field(__u16,	flags			)
+		__field(__u16,	addr			)
+		__field(__u8,	command			)
+		__field(__u32,	protocol		)
+		__array(__u8, buf, I2C_SMBUS_BLOCK_MAX + 2)	),
+	TP_fast_assign(
+		__entry->adapter_nr = adap->nr;
+		__entry->addr = addr;
+		__entry->flags = flags;
+		__entry->command = command;
+		__entry->protocol = protocol;
+		       ),
+	TP_printk("i2c-%d a=%03x f=%04x c=%x %s",
+		  __entry->adapter_nr,
+		  __entry->addr,
+		  __entry->flags,
+		  __entry->command,
+		  __print_symbolic(__entry->protocol,
+				   { I2C_SMBUS_QUICK,		"QUICK"	},
+				   { I2C_SMBUS_BYTE,		"BYTE"	},
+				   { I2C_SMBUS_BYTE_DATA,		"BYTE_DATA" },
+				   { I2C_SMBUS_WORD_DATA,		"WORD_DATA" },
+				   { I2C_SMBUS_PROC_CALL,		"PROC_CALL" },
+				   { I2C_SMBUS_BLOCK_DATA,		"BLOCK_DATA" },
+				   { I2C_SMBUS_I2C_BLOCK_BROKEN,	"I2C_BLOCK_BROKEN" },
+				   { I2C_SMBUS_BLOCK_PROC_CALL,	"BLOCK_PROC_CALL" },
+				   { I2C_SMBUS_I2C_BLOCK_DATA,	"I2C_BLOCK_DATA" })
+		  ));
+
+/*
+ * i2c_smbus_xfer() read data or procedure call reply
+ */
+TRACE_EVENT_CONDITION(smbus_reply,
+	TP_PROTO(const struct i2c_adapter *adap,
+		 u16 addr, unsigned short flags,
+		 char read_write, u8 command, int protocol,
+		 const union i2c_smbus_data *data),
+	TP_ARGS(adap, addr, flags, read_write, command, protocol, data),
+	TP_CONDITION(read_write == I2C_SMBUS_READ),
+	TP_STRUCT__entry(
+		__field(int,	adapter_nr		)
+		__field(__u16,	addr			)
+		__field(__u16,	flags			)
+		__field(__u8,	command			)
+		__field(__u8,	len			)
+		__field(__u32,	protocol		)
+		__array(__u8, buf, I2C_SMBUS_BLOCK_MAX + 2)	),
+	TP_fast_assign(
+		__entry->adapter_nr = adap->nr;
+		__entry->addr = addr;
+		__entry->flags = flags;
+		__entry->command = command;
+		__entry->protocol = protocol;
+
+		switch (protocol) {
+		case I2C_SMBUS_BYTE:
+		case I2C_SMBUS_BYTE_DATA:
+			__entry->len = 1;
+			goto copy;
+		case I2C_SMBUS_WORD_DATA:
+		case I2C_SMBUS_PROC_CALL:
+			__entry->len = 2;
+			goto copy;
+		case I2C_SMBUS_BLOCK_DATA:
+		case I2C_SMBUS_BLOCK_PROC_CALL:
+		case I2C_SMBUS_I2C_BLOCK_DATA:
+			__entry->len = data->block[0] + 1;
+		copy:
+			memcpy(__entry->buf, data->block, __entry->len);
+			break;
+		case I2C_SMBUS_QUICK:
+		case I2C_SMBUS_I2C_BLOCK_BROKEN:
+		default:
+			__entry->len = 0;
+		}
+		       ),
+	TP_printk("i2c-%d a=%03x f=%04x c=%x %s l=%u [%*phD]",
+		  __entry->adapter_nr,
+		  __entry->addr,
+		  __entry->flags,
+		  __entry->command,
+		  __print_symbolic(__entry->protocol,
+				   { I2C_SMBUS_QUICK,		"QUICK"	},
+				   { I2C_SMBUS_BYTE,		"BYTE"	},
+				   { I2C_SMBUS_BYTE_DATA,		"BYTE_DATA" },
+				   { I2C_SMBUS_WORD_DATA,		"WORD_DATA" },
+				   { I2C_SMBUS_PROC_CALL,		"PROC_CALL" },
+				   { I2C_SMBUS_BLOCK_DATA,		"BLOCK_DATA" },
+				   { I2C_SMBUS_I2C_BLOCK_BROKEN,	"I2C_BLOCK_BROKEN" },
+				   { I2C_SMBUS_BLOCK_PROC_CALL,	"BLOCK_PROC_CALL" },
+				   { I2C_SMBUS_I2C_BLOCK_DATA,	"I2C_BLOCK_DATA" }),
+		  __entry->len,
+		  __entry->len, __entry->buf
+		  ));
+
+/*
+ * i2c_smbus_xfer() result
+ */
+TRACE_EVENT(smbus_result,
+	    TP_PROTO(const struct i2c_adapter *adap,
+		     u16 addr, unsigned short flags,
+		     char read_write, u8 command, int protocol,
+		     int res),
+	    TP_ARGS(adap, addr, flags, read_write, command, protocol, res),
+	    TP_STRUCT__entry(
+		    __field(int,	adapter_nr		)
+		    __field(__u16,	addr			)
+		    __field(__u16,	flags			)
+		    __field(__u8,	read_write		)
+		    __field(__u8,	command			)
+		    __field(__s16,	res			)
+		    __field(__u32,	protocol		)
+			     ),
+	    TP_fast_assign(
+		    __entry->adapter_nr = adap->nr;
+		    __entry->addr = addr;
+		    __entry->flags = flags;
+		    __entry->read_write = read_write;
+		    __entry->command = command;
+		    __entry->protocol = protocol;
+		    __entry->res = res;
+			   ),
+	    TP_printk("i2c-%d a=%03x f=%04x c=%x %s %s res=%d",
+		      __entry->adapter_nr,
+		      __entry->addr,
+		      __entry->flags,
+		      __entry->command,
+		      __print_symbolic(__entry->protocol,
+				       { I2C_SMBUS_QUICK,		"QUICK"	},
+				       { I2C_SMBUS_BYTE,		"BYTE"	},
+				       { I2C_SMBUS_BYTE_DATA,		"BYTE_DATA" },
+				       { I2C_SMBUS_WORD_DATA,		"WORD_DATA" },
+				       { I2C_SMBUS_PROC_CALL,		"PROC_CALL" },
+				       { I2C_SMBUS_BLOCK_DATA,		"BLOCK_DATA" },
+				       { I2C_SMBUS_I2C_BLOCK_BROKEN,	"I2C_BLOCK_BROKEN" },
+				       { I2C_SMBUS_BLOCK_PROC_CALL,	"BLOCK_PROC_CALL" },
+				       { I2C_SMBUS_I2C_BLOCK_DATA,	"I2C_BLOCK_DATA" }),
+		      __entry->read_write == I2C_SMBUS_WRITE ? "wr" : "rd",
+		      __entry->res
+		      ));
+
+#endif /* _TRACE_SMBUS_H */
+
+/* This part must be outside protection */
+#include <trace/define_trace.h>
diff --git a/include/uapi/asm-generic/ioctls.h b/include/uapi/asm-generic/ioctls.h
index 06d5f7ddf84e..14baf9f23a14 100644
--- a/include/uapi/asm-generic/ioctls.h
+++ b/include/uapi/asm-generic/ioctls.h
@@ -77,7 +77,7 @@
 #define TIOCGPKT	_IOR('T', 0x38, int) /* Get packet mode state */
 #define TIOCGPTLCK	_IOR('T', 0x39, int) /* Get Pty lock state */
 #define TIOCGEXCL	_IOR('T', 0x40, int) /* Get exclusive mode state */
-#define TIOCGPTPEER	_IOR('T', 0x41, int) /* Safely open the slave */
+#define TIOCGPTPEER	_IO('T', 0x41) /* Safely open the slave */
 
 #define FIONCLEX	0x5450
 #define FIOCLEX		0x5451
diff --git a/include/uapi/drm/msm_drm.h b/include/uapi/drm/msm_drm.h
index 26c54f6d595d..ad4eb2863e70 100644
--- a/include/uapi/drm/msm_drm.h
+++ b/include/uapi/drm/msm_drm.h
@@ -171,7 +171,7 @@ struct drm_msm_gem_submit_cmd {
 	__u32 size;           /* in, cmdstream size */
 	__u32 pad;
 	__u32 nr_relocs;      /* in, number of submit_reloc's */
-	__u64 __user relocs;  /* in, ptr to array of submit_reloc's */
+	__u64 relocs;         /* in, ptr to array of submit_reloc's */
 };
 
 /* Each buffer referenced elsewhere in the cmdstream submit (ie. the
@@ -215,8 +215,8 @@ struct drm_msm_gem_submit {
 	__u32 fence;          /* out */
 	__u32 nr_bos;         /* in, number of submit_bo's */
 	__u32 nr_cmds;        /* in, number of submit_cmd's */
-	__u64 __user bos;     /* in, ptr to array of submit_bo's */
-	__u64 __user cmds;    /* in, ptr to array of submit_cmd's */
+	__u64 bos;            /* in, ptr to array of submit_bo's */
+	__u64 cmds;           /* in, ptr to array of submit_cmd's */
 	__s32 fence_fd;       /* in/out fence fd (see MSM_SUBMIT_FENCE_FD_IN/OUT) */
 };
 
diff --git a/include/uapi/linux/kcmp.h b/include/uapi/linux/kcmp.h
index 84df14b37360..481e103da78e 100644
--- a/include/uapi/linux/kcmp.h
+++ b/include/uapi/linux/kcmp.h
@@ -1,6 +1,8 @@
 #ifndef _UAPI_LINUX_KCMP_H
 #define _UAPI_LINUX_KCMP_H
 
+#include <linux/types.h>
+
 /* Comparison type */
 enum kcmp_type {
 	KCMP_FILE,
@@ -10,8 +12,16 @@ enum kcmp_type {
 	KCMP_SIGHAND,
 	KCMP_IO,
 	KCMP_SYSVSEM,
+	KCMP_EPOLL_TFD,
 
 	KCMP_TYPES,
 };
 
+/* Slot for KCMP_EPOLL_TFD */
+struct kcmp_epoll_slot {
+	__u32 efd;		/* epoll file descriptor */
+	__u32 tfd;		/* target file number */
+	__u32 toff;		/* target offset within same numbered sequence */
+};
+
 #endif /* _UAPI_LINUX_KCMP_H */
diff --git a/include/uapi/linux/kvm.h b/include/uapi/linux/kvm.h
index c0b6dfec5f87..6cd63c18708a 100644
--- a/include/uapi/linux/kvm.h
+++ b/include/uapi/linux/kvm.h
@@ -927,6 +927,8 @@ struct kvm_ppc_resize_hpt {
 #define KVM_CAP_S390_CMMA_MIGRATION 145
 #define KVM_CAP_PPC_FWNMI 146
 #define KVM_CAP_PPC_SMT_POSSIBLE 147
+#define KVM_CAP_HYPERV_SYNIC2 148
+#define KVM_CAP_HYPERV_VP_INDEX 149
 
 #ifdef KVM_CAP_IRQ_ROUTING
 
@@ -1351,7 +1353,7 @@ struct kvm_s390_ucas_mapping {
 /* Available with KVM_CAP_X86_SMM */
 #define KVM_SMI                   _IO(KVMIO,   0xb7)
 /* Available with KVM_CAP_S390_CMMA_MIGRATION */
-#define KVM_S390_GET_CMMA_BITS      _IOW(KVMIO, 0xb8, struct kvm_s390_cmma_log)
+#define KVM_S390_GET_CMMA_BITS      _IOWR(KVMIO, 0xb8, struct kvm_s390_cmma_log)
 #define KVM_S390_SET_CMMA_BITS      _IOW(KVMIO, 0xb9, struct kvm_s390_cmma_log)
 
 #define KVM_DEV_ASSIGN_ENABLE_IOMMU	(1 << 0)
diff --git a/include/uapi/linux/sem.h b/include/uapi/linux/sem.h
index dd73b908b2f3..67eb90361692 100644
--- a/include/uapi/linux/sem.h
+++ b/include/uapi/linux/sem.h
@@ -23,7 +23,7 @@
 struct semid_ds {
 	struct ipc_perm	sem_perm;		/* permissions .. see ipc.h */
 	__kernel_time_t	sem_otime;		/* last semop time */
-	__kernel_time_t	sem_ctime;		/* last change time */
+	__kernel_time_t	sem_ctime;		/* create/last semctl() time */
 	struct sem	*sem_base;		/* ptr to first semaphore in array */
 	struct sem_queue *sem_pending;		/* pending operations to be processed */
 	struct sem_queue **sem_pending_last;	/* last pending operation */
diff --git a/include/uapi/linux/target_core_user.h b/include/uapi/linux/target_core_user.h
index af17b4154ef6..24a1c4ec2248 100644
--- a/include/uapi/linux/target_core_user.h
+++ b/include/uapi/linux/target_core_user.h
@@ -130,6 +130,11 @@ enum tcmu_genl_cmd {
 	TCMU_CMD_UNSPEC,
 	TCMU_CMD_ADDED_DEVICE,
 	TCMU_CMD_REMOVED_DEVICE,
+	TCMU_CMD_RECONFIG_DEVICE,
+	TCMU_CMD_ADDED_DEVICE_DONE,
+	TCMU_CMD_REMOVED_DEVICE_DONE,
+	TCMU_CMD_RECONFIG_DEVICE_DONE,
+	TCMU_CMD_SET_FEATURES,
 	__TCMU_CMD_MAX,
 };
 #define TCMU_CMD_MAX (__TCMU_CMD_MAX - 1)
@@ -138,6 +143,13 @@ enum tcmu_genl_attr {
 	TCMU_ATTR_UNSPEC,
 	TCMU_ATTR_DEVICE,
 	TCMU_ATTR_MINOR,
+	TCMU_ATTR_PAD,
+	TCMU_ATTR_DEV_CFG,
+	TCMU_ATTR_DEV_SIZE,
+	TCMU_ATTR_WRITECACHE,
+	TCMU_ATTR_CMD_STATUS,
+	TCMU_ATTR_DEVICE_ID,
+	TCMU_ATTR_SUPP_KERN_CMD_REPLY,
 	__TCMU_ATTR_MAX,
 };
 #define TCMU_ATTR_MAX (__TCMU_ATTR_MAX - 1)
diff --git a/include/uapi/linux/usb/audio.h b/include/uapi/linux/usb/audio.h
index d2314be4f0c0..a4680a5bf5dd 100644
--- a/include/uapi/linux/usb/audio.h
+++ b/include/uapi/linux/usb/audio.h
@@ -333,7 +333,7 @@ struct uac_processing_unit_descriptor {
 	__u8 bDescriptorType;
 	__u8 bDescriptorSubtype;
 	__u8 bUnitID;
-	__u16 wProcessType;
+	__le16 wProcessType;
 	__u8 bNrInPins;
 	__u8 baSourceID[];
 } __attribute__ ((packed));
@@ -491,8 +491,8 @@ struct uac_format_type_ii_ext_descriptor {
 	__u8 bDescriptorType;
 	__u8 bDescriptorSubtype;
 	__u8 bFormatType;
-	__u16 wMaxBitRate;
-	__u16 wSamplesPerFrame;
+	__le16 wMaxBitRate;
+	__le16 wSamplesPerFrame;
 	__u8 bHeaderLength;
 	__u8 bSideBandProtocol;
 } __attribute__((packed));
diff --git a/include/xen/balloon.h b/include/xen/balloon.h
index d1767dfb0d95..8906361bb50c 100644
--- a/include/xen/balloon.h
+++ b/include/xen/balloon.h
@@ -35,3 +35,11 @@ static inline int register_xen_selfballooning(struct device *dev)
 	return -ENOSYS;
 }
 #endif
+
+#ifdef CONFIG_XEN_BALLOON
+void xen_balloon_init(void);
+#else
+static inline void xen_balloon_init(void)
+{
+}
+#endif
diff --git a/init/main.c b/init/main.c
index df58a416dd1d..052481fbe363 100644
--- a/init/main.c
+++ b/init/main.c
@@ -518,6 +518,7 @@ asmlinkage __visible void __init start_kernel(void)
 	/*
 	 * Set up the initial canary ASAP:
 	 */
+	add_latent_entropy();
 	boot_init_stack_canary();
 
 	cgroup_init_early();
diff --git a/ipc/msg.c b/ipc/msg.c
index 104926dc72be..2c38f10d1483 100644
--- a/ipc/msg.c
+++ b/ipc/msg.c
@@ -97,11 +97,11 @@ static inline void msg_rmid(struct ipc_namespace *ns, struct msg_queue *s)
 
 static void msg_rcu_free(struct rcu_head *head)
 {
-	struct ipc_rcu *p = container_of(head, struct ipc_rcu, rcu);
-	struct msg_queue *msq = ipc_rcu_to_struct(p);
+	struct kern_ipc_perm *p = container_of(head, struct kern_ipc_perm, rcu);
+	struct msg_queue *msq = container_of(p, struct msg_queue, q_perm);
 
 	security_msg_queue_free(msq);
-	ipc_rcu_free(head);
+	kvfree(msq);
 }
 
 /**
@@ -114,12 +114,12 @@ static void msg_rcu_free(struct rcu_head *head)
 static int newque(struct ipc_namespace *ns, struct ipc_params *params)
 {
 	struct msg_queue *msq;
-	int id, retval;
+	int retval;
 	key_t key = params->key;
 	int msgflg = params->flg;
 
-	msq = ipc_rcu_alloc(sizeof(*msq));
-	if (!msq)
+	msq = kvmalloc(sizeof(*msq), GFP_KERNEL);
+	if (unlikely(!msq))
 		return -ENOMEM;
 
 	msq->q_perm.mode = msgflg & S_IRWXUGO;
@@ -128,7 +128,7 @@ static int newque(struct ipc_namespace *ns, struct ipc_params *params)
 	msq->q_perm.security = NULL;
 	retval = security_msg_queue_alloc(msq);
 	if (retval) {
-		ipc_rcu_putref(msq, ipc_rcu_free);
+		kvfree(msq);
 		return retval;
 	}
 
@@ -142,10 +142,10 @@ static int newque(struct ipc_namespace *ns, struct ipc_params *params)
 	INIT_LIST_HEAD(&msq->q_senders);
 
 	/* ipc_addid() locks msq upon success. */
-	id = ipc_addid(&msg_ids(ns), &msq->q_perm, ns->msg_ctlmni);
-	if (id < 0) {
-		ipc_rcu_putref(msq, msg_rcu_free);
-		return id;
+	retval = ipc_addid(&msg_ids(ns), &msq->q_perm, ns->msg_ctlmni);
+	if (retval < 0) {
+		call_rcu(&msq->q_perm.rcu, msg_rcu_free);
+		return retval;
 	}
 
 	ipc_unlock_object(&msq->q_perm);
@@ -249,7 +249,7 @@ static void freeque(struct ipc_namespace *ns, struct kern_ipc_perm *ipcp)
 		free_msg(msg);
 	}
 	atomic_sub(msq->q_cbytes, &ns->msg_bytes);
-	ipc_rcu_putref(msq, msg_rcu_free);
+	ipc_rcu_putref(&msq->q_perm, msg_rcu_free);
 }
 
 /*
@@ -688,7 +688,7 @@ long do_msgsnd(int msqid, long mtype, void __user *mtext,
 		/* enqueue the sender and prepare to block */
 		ss_add(msq, &s, msgsz);
 
-		if (!ipc_rcu_getref(msq)) {
+		if (!ipc_rcu_getref(&msq->q_perm)) {
 			err = -EIDRM;
 			goto out_unlock0;
 		}
@@ -700,7 +700,7 @@ long do_msgsnd(int msqid, long mtype, void __user *mtext,
 		rcu_read_lock();
 		ipc_lock_object(&msq->q_perm);
 
-		ipc_rcu_putref(msq, msg_rcu_free);
+		ipc_rcu_putref(&msq->q_perm, msg_rcu_free);
 		/* raced with RMID? */
 		if (!ipc_valid_object(&msq->q_perm)) {
 			err = -EIDRM;
@@ -1034,7 +1034,8 @@ void msg_exit_ns(struct ipc_namespace *ns)
 static int sysvipc_msg_proc_show(struct seq_file *s, void *it)
 {
 	struct user_namespace *user_ns = seq_user_ns(s);
-	struct msg_queue *msq = it;
+	struct kern_ipc_perm *ipcp = it;
+	struct msg_queue *msq = container_of(ipcp, struct msg_queue, q_perm);
 
 	seq_printf(s,
 		   "%10d %10d  %4o  %10lu %10lu %5u %5u %5u %5u %5u %5u %10lu %10lu %10lu\n",
diff --git a/ipc/sem.c b/ipc/sem.c
index 947dc2348271..38371e93bfa5 100644
--- a/ipc/sem.c
+++ b/ipc/sem.c
@@ -87,24 +87,6 @@
 #include <linux/uaccess.h>
 #include "util.h"
 
-/* One semaphore structure for each semaphore in the system. */
-struct sem {
-	int	semval;		/* current value */
-	/*
-	 * PID of the process that last modified the semaphore. For
-	 * Linux, specifically these are:
-	 *  - semop
-	 *  - semctl, via SETVAL and SETALL.
-	 *  - at task exit when performing undo adjustments (see exit_sem).
-	 */
-	int	sempid;
-	spinlock_t	lock;	/* spinlock for fine-grained semtimedop */
-	struct list_head pending_alter; /* pending single-sop operations */
-					/* that alter the semaphore */
-	struct list_head pending_const; /* pending single-sop operations */
-					/* that do not alter the semaphore*/
-	time_t	sem_otime;	/* candidate for sem_otime */
-} ____cacheline_aligned_in_smp;
 
 /* One queue for each sleeping process in the system. */
 struct sem_queue {
@@ -175,7 +157,7 @@ static int sysvipc_sem_proc_show(struct seq_file *s, void *it);
  *	sem_array.sem_undo
  *
  * b) global or semaphore sem_lock() for read/write:
- *	sem_array.sem_base[i].pending_{const,alter}:
+ *	sem_array.sems[i].pending_{const,alter}:
  *
  * c) special:
  *	sem_undo_list.list_proc:
@@ -250,7 +232,7 @@ static void unmerge_queues(struct sem_array *sma)
 	 */
 	list_for_each_entry_safe(q, tq, &sma->pending_alter, list) {
 		struct sem *curr;
-		curr = &sma->sem_base[q->sops[0].sem_num];
+		curr = &sma->sems[q->sops[0].sem_num];
 
 		list_add_tail(&q->list, &curr->pending_alter);
 	}
@@ -270,7 +252,7 @@ static void merge_queues(struct sem_array *sma)
 {
 	int i;
 	for (i = 0; i < sma->sem_nsems; i++) {
-		struct sem *sem = sma->sem_base + i;
+		struct sem *sem = &sma->sems[i];
 
 		list_splice_init(&sem->pending_alter, &sma->pending_alter);
 	}
@@ -278,11 +260,11 @@ static void merge_queues(struct sem_array *sma)
 
 static void sem_rcu_free(struct rcu_head *head)
 {
-	struct ipc_rcu *p = container_of(head, struct ipc_rcu, rcu);
-	struct sem_array *sma = ipc_rcu_to_struct(p);
+	struct kern_ipc_perm *p = container_of(head, struct kern_ipc_perm, rcu);
+	struct sem_array *sma = container_of(p, struct sem_array, sem_perm);
 
 	security_sem_free(sma);
-	ipc_rcu_free(head);
+	kvfree(sma);
 }
 
 /*
@@ -306,7 +288,7 @@ static void complexmode_enter(struct sem_array *sma)
 	sma->use_global_lock = USE_GLOBAL_LOCK_HYSTERESIS;
 
 	for (i = 0; i < sma->sem_nsems; i++) {
-		sem = sma->sem_base + i;
+		sem = &sma->sems[i];
 		spin_lock(&sem->lock);
 		spin_unlock(&sem->lock);
 	}
@@ -366,7 +348,7 @@ static inline int sem_lock(struct sem_array *sma, struct sembuf *sops,
 	 *
 	 * Both facts are tracked by use_global_mode.
 	 */
-	sem = sma->sem_base + sops->sem_num;
+	sem = &sma->sems[sops->sem_num];
 
 	/*
 	 * Initial check for use_global_lock. Just an optimization,
@@ -421,7 +403,7 @@ static inline void sem_unlock(struct sem_array *sma, int locknum)
 		complexmode_tryleave(sma);
 		ipc_unlock_object(&sma->sem_perm);
 	} else {
-		struct sem *sem = sma->sem_base + locknum;
+		struct sem *sem = &sma->sems[locknum];
 		spin_unlock(&sem->lock);
 	}
 }
@@ -456,7 +438,7 @@ static inline struct sem_array *sem_obtain_object_check(struct ipc_namespace *ns
 static inline void sem_lock_and_putref(struct sem_array *sma)
 {
 	sem_lock(sma, NULL, -1);
-	ipc_rcu_putref(sma, sem_rcu_free);
+	ipc_rcu_putref(&sma->sem_perm, sem_rcu_free);
 }
 
 static inline void sem_rmid(struct ipc_namespace *ns, struct sem_array *s)
@@ -464,6 +446,24 @@ static inline void sem_rmid(struct ipc_namespace *ns, struct sem_array *s)
 	ipc_rmid(&sem_ids(ns), &s->sem_perm);
 }
 
+static struct sem_array *sem_alloc(size_t nsems)
+{
+	struct sem_array *sma;
+	size_t size;
+
+	if (nsems > (INT_MAX - sizeof(*sma)) / sizeof(sma->sems[0]))
+		return NULL;
+
+	size = sizeof(*sma) + nsems * sizeof(sma->sems[0]);
+	sma = kvmalloc(size, GFP_KERNEL);
+	if (unlikely(!sma))
+		return NULL;
+
+	memset(sma, 0, size);
+
+	return sma;
+}
+
 /**
  * newary - Create a new semaphore set
  * @ns: namespace
@@ -473,10 +473,8 @@ static inline void sem_rmid(struct ipc_namespace *ns, struct sem_array *s)
  */
 static int newary(struct ipc_namespace *ns, struct ipc_params *params)
 {
-	int id;
 	int retval;
 	struct sem_array *sma;
-	int size;
 	key_t key = params->key;
 	int nsems = params->u.nsems;
 	int semflg = params->flg;
@@ -487,29 +485,24 @@ static int newary(struct ipc_namespace *ns, struct ipc_params *params)
 	if (ns->used_sems + nsems > ns->sc_semmns)
 		return -ENOSPC;
 
-	size = sizeof(*sma) + nsems * sizeof(struct sem);
-	sma = ipc_rcu_alloc(size);
+	sma = sem_alloc(nsems);
 	if (!sma)
 		return -ENOMEM;
 
-	memset(sma, 0, size);
-
 	sma->sem_perm.mode = (semflg & S_IRWXUGO);
 	sma->sem_perm.key = key;
 
 	sma->sem_perm.security = NULL;
 	retval = security_sem_alloc(sma);
 	if (retval) {
-		ipc_rcu_putref(sma, ipc_rcu_free);
+		kvfree(sma);
 		return retval;
 	}
 
-	sma->sem_base = (struct sem *) &sma[1];
-
 	for (i = 0; i < nsems; i++) {
-		INIT_LIST_HEAD(&sma->sem_base[i].pending_alter);
-		INIT_LIST_HEAD(&sma->sem_base[i].pending_const);
-		spin_lock_init(&sma->sem_base[i].lock);
+		INIT_LIST_HEAD(&sma->sems[i].pending_alter);
+		INIT_LIST_HEAD(&sma->sems[i].pending_const);
+		spin_lock_init(&sma->sems[i].lock);
 	}
 
 	sma->complex_count = 0;
@@ -520,10 +513,10 @@ static int newary(struct ipc_namespace *ns, struct ipc_params *params)
 	sma->sem_nsems = nsems;
 	sma->sem_ctime = get_seconds();
 
-	id = ipc_addid(&sem_ids(ns), &sma->sem_perm, ns->sc_semmni);
-	if (id < 0) {
-		ipc_rcu_putref(sma, sem_rcu_free);
-		return id;
+	retval = ipc_addid(&sem_ids(ns), &sma->sem_perm, ns->sc_semmni);
+	if (retval < 0) {
+		call_rcu(&sma->sem_perm.rcu, sem_rcu_free);
+		return retval;
 	}
 	ns->used_sems += nsems;
 
@@ -612,7 +605,7 @@ static int perform_atomic_semop_slow(struct sem_array *sma, struct sem_queue *q)
 	un = q->undo;
 
 	for (sop = sops; sop < sops + nsops; sop++) {
-		curr = sma->sem_base + sop->sem_num;
+		curr = &sma->sems[sop->sem_num];
 		sem_op = sop->sem_op;
 		result = curr->semval;
 
@@ -639,7 +632,7 @@ static int perform_atomic_semop_slow(struct sem_array *sma, struct sem_queue *q)
 	sop--;
 	pid = q->pid;
 	while (sop >= sops) {
-		sma->sem_base[sop->sem_num].sempid = pid;
+		sma->sems[sop->sem_num].sempid = pid;
 		sop--;
 	}
 
@@ -661,7 +654,7 @@ undo:
 	sop--;
 	while (sop >= sops) {
 		sem_op = sop->sem_op;
-		sma->sem_base[sop->sem_num].semval -= sem_op;
+		sma->sems[sop->sem_num].semval -= sem_op;
 		if (sop->sem_flg & SEM_UNDO)
 			un->semadj[sop->sem_num] += sem_op;
 		sop--;
@@ -692,7 +685,7 @@ static int perform_atomic_semop(struct sem_array *sma, struct sem_queue *q)
 	 * until the operations can go through.
 	 */
 	for (sop = sops; sop < sops + nsops; sop++) {
-		curr = sma->sem_base + sop->sem_num;
+		curr = &sma->sems[sop->sem_num];
 		sem_op = sop->sem_op;
 		result = curr->semval;
 
@@ -716,7 +709,7 @@ static int perform_atomic_semop(struct sem_array *sma, struct sem_queue *q)
 	}
 
 	for (sop = sops; sop < sops + nsops; sop++) {
-		curr = sma->sem_base + sop->sem_num;
+		curr = &sma->sems[sop->sem_num];
 		sem_op = sop->sem_op;
 		result = curr->semval;
 
@@ -815,7 +808,7 @@ static int wake_const_ops(struct sem_array *sma, int semnum,
 	if (semnum == -1)
 		pending_list = &sma->pending_const;
 	else
-		pending_list = &sma->sem_base[semnum].pending_const;
+		pending_list = &sma->sems[semnum].pending_const;
 
 	list_for_each_entry_safe(q, tmp, pending_list, list) {
 		int error = perform_atomic_semop(sma, q);
@@ -856,7 +849,7 @@ static int do_smart_wakeup_zero(struct sem_array *sma, struct sembuf *sops,
 		for (i = 0; i < nsops; i++) {
 			int num = sops[i].sem_num;
 
-			if (sma->sem_base[num].semval == 0) {
+			if (sma->sems[num].semval == 0) {
 				got_zero = 1;
 				semop_completed |= wake_const_ops(sma, num, wake_q);
 			}
@@ -867,7 +860,7 @@ static int do_smart_wakeup_zero(struct sem_array *sma, struct sembuf *sops,
 		 * Assume all were changed.
 		 */
 		for (i = 0; i < sma->sem_nsems; i++) {
-			if (sma->sem_base[i].semval == 0) {
+			if (sma->sems[i].semval == 0) {
 				got_zero = 1;
 				semop_completed |= wake_const_ops(sma, i, wake_q);
 			}
@@ -909,7 +902,7 @@ static int update_queue(struct sem_array *sma, int semnum, struct wake_q_head *w
 	if (semnum == -1)
 		pending_list = &sma->pending_alter;
 	else
-		pending_list = &sma->sem_base[semnum].pending_alter;
+		pending_list = &sma->sems[semnum].pending_alter;
 
 again:
 	list_for_each_entry_safe(q, tmp, pending_list, list) {
@@ -922,7 +915,7 @@ again:
 		 * be in the  per semaphore pending queue, and decrements
 		 * cannot be successful if the value is already 0.
 		 */
-		if (semnum != -1 && sma->sem_base[semnum].semval == 0)
+		if (semnum != -1 && sma->sems[semnum].semval == 0)
 			break;
 
 		error = perform_atomic_semop(sma, q);
@@ -959,9 +952,9 @@ again:
 static void set_semotime(struct sem_array *sma, struct sembuf *sops)
 {
 	if (sops == NULL) {
-		sma->sem_base[0].sem_otime = get_seconds();
+		sma->sems[0].sem_otime = get_seconds();
 	} else {
-		sma->sem_base[sops[0].sem_num].sem_otime =
+		sma->sems[sops[0].sem_num].sem_otime =
 							get_seconds();
 	}
 }
@@ -1067,9 +1060,9 @@ static int count_semcnt(struct sem_array *sma, ushort semnum,
 	semcnt = 0;
 	/* First: check the simple operations. They are easy to evaluate */
 	if (count_zero)
-		l = &sma->sem_base[semnum].pending_const;
+		l = &sma->sems[semnum].pending_const;
 	else
-		l = &sma->sem_base[semnum].pending_alter;
+		l = &sma->sems[semnum].pending_alter;
 
 	list_for_each_entry(q, l, list) {
 		/* all task on a per-semaphore list sleep on exactly
@@ -1124,7 +1117,7 @@ static void freeary(struct ipc_namespace *ns, struct kern_ipc_perm *ipcp)
 		wake_up_sem_queue_prepare(q, -EIDRM, &wake_q);
 	}
 	for (i = 0; i < sma->sem_nsems; i++) {
-		struct sem *sem = sma->sem_base + i;
+		struct sem *sem = &sma->sems[i];
 		list_for_each_entry_safe(q, tq, &sem->pending_const, list) {
 			unlink_queue(sma, q);
 			wake_up_sem_queue_prepare(q, -EIDRM, &wake_q);
@@ -1142,7 +1135,7 @@ static void freeary(struct ipc_namespace *ns, struct kern_ipc_perm *ipcp)
 
 	wake_up_q(&wake_q);
 	ns->used_sems -= sma->sem_nsems;
-	ipc_rcu_putref(sma, sem_rcu_free);
+	ipc_rcu_putref(&sma->sem_perm, sem_rcu_free);
 }
 
 static unsigned long copy_semid_to_user(void __user *buf, struct semid64_ds *in, int version)
@@ -1174,9 +1167,9 @@ static time_t get_semotime(struct sem_array *sma)
 	int i;
 	time_t res;
 
-	res = sma->sem_base[0].sem_otime;
+	res = sma->sems[0].sem_otime;
 	for (i = 1; i < sma->sem_nsems; i++) {
-		time_t to = sma->sem_base[i].sem_otime;
+		time_t to = sma->sems[i].sem_otime;
 
 		if (to > res)
 			res = to;
@@ -1325,7 +1318,7 @@ static int semctl_setval(struct ipc_namespace *ns, int semid, int semnum,
 		return -EIDRM;
 	}
 
-	curr = &sma->sem_base[semnum];
+	curr = &sma->sems[semnum];
 
 	ipc_assert_locked_object(&sma->sem_perm);
 	list_for_each_entry(un, &sma->list_id, list_id)
@@ -1382,15 +1375,16 @@ static int semctl_main(struct ipc_namespace *ns, int semid, int semnum,
 			goto out_unlock;
 		}
 		if (nsems > SEMMSL_FAST) {
-			if (!ipc_rcu_getref(sma)) {
+			if (!ipc_rcu_getref(&sma->sem_perm)) {
 				err = -EIDRM;
 				goto out_unlock;
 			}
 			sem_unlock(sma, -1);
 			rcu_read_unlock();
-			sem_io = ipc_alloc(sizeof(ushort)*nsems);
+			sem_io = kvmalloc_array(nsems, sizeof(ushort),
+						GFP_KERNEL);
 			if (sem_io == NULL) {
-				ipc_rcu_putref(sma, sem_rcu_free);
+				ipc_rcu_putref(&sma->sem_perm, sem_rcu_free);
 				return -ENOMEM;
 			}
 
@@ -1402,7 +1396,7 @@ static int semctl_main(struct ipc_namespace *ns, int semid, int semnum,
 			}
 		}
 		for (i = 0; i < sma->sem_nsems; i++)
-			sem_io[i] = sma->sem_base[i].semval;
+			sem_io[i] = sma->sems[i].semval;
 		sem_unlock(sma, -1);
 		rcu_read_unlock();
 		err = 0;
@@ -1415,29 +1409,30 @@ static int semctl_main(struct ipc_namespace *ns, int semid, int semnum,
 		int i;
 		struct sem_undo *un;
 
-		if (!ipc_rcu_getref(sma)) {
+		if (!ipc_rcu_getref(&sma->sem_perm)) {
 			err = -EIDRM;
 			goto out_rcu_wakeup;
 		}
 		rcu_read_unlock();
 
 		if (nsems > SEMMSL_FAST) {
-			sem_io = ipc_alloc(sizeof(ushort)*nsems);
+			sem_io = kvmalloc_array(nsems, sizeof(ushort),
+						GFP_KERNEL);
 			if (sem_io == NULL) {
-				ipc_rcu_putref(sma, sem_rcu_free);
+				ipc_rcu_putref(&sma->sem_perm, sem_rcu_free);
 				return -ENOMEM;
 			}
 		}
 
 		if (copy_from_user(sem_io, p, nsems*sizeof(ushort))) {
-			ipc_rcu_putref(sma, sem_rcu_free);
+			ipc_rcu_putref(&sma->sem_perm, sem_rcu_free);
 			err = -EFAULT;
 			goto out_free;
 		}
 
 		for (i = 0; i < nsems; i++) {
 			if (sem_io[i] > SEMVMX) {
-				ipc_rcu_putref(sma, sem_rcu_free);
+				ipc_rcu_putref(&sma->sem_perm, sem_rcu_free);
 				err = -ERANGE;
 				goto out_free;
 			}
@@ -1450,8 +1445,8 @@ static int semctl_main(struct ipc_namespace *ns, int semid, int semnum,
 		}
 
 		for (i = 0; i < nsems; i++) {
-			sma->sem_base[i].semval = sem_io[i];
-			sma->sem_base[i].sempid = task_tgid_vnr(current);
+			sma->sems[i].semval = sem_io[i];
+			sma->sems[i].sempid = task_tgid_vnr(current);
 		}
 
 		ipc_assert_locked_object(&sma->sem_perm);
@@ -1476,7 +1471,7 @@ static int semctl_main(struct ipc_namespace *ns, int semid, int semnum,
 		err = -EIDRM;
 		goto out_unlock;
 	}
-	curr = &sma->sem_base[semnum];
+	curr = &sma->sems[semnum];
 
 	switch (cmd) {
 	case GETVAL:
@@ -1500,7 +1495,7 @@ out_rcu_wakeup:
 	wake_up_q(&wake_q);
 out_free:
 	if (sem_io != fast_sem_io)
-		ipc_free(sem_io);
+		kvfree(sem_io);
 	return err;
 }
 
@@ -1719,7 +1714,7 @@ static struct sem_undo *find_alloc_undo(struct ipc_namespace *ns, int semid)
 	}
 
 	nsems = sma->sem_nsems;
-	if (!ipc_rcu_getref(sma)) {
+	if (!ipc_rcu_getref(&sma->sem_perm)) {
 		rcu_read_unlock();
 		un = ERR_PTR(-EIDRM);
 		goto out;
@@ -1729,7 +1724,7 @@ static struct sem_undo *find_alloc_undo(struct ipc_namespace *ns, int semid)
 	/* step 2: allocate new undo structure */
 	new = kzalloc(sizeof(struct sem_undo) + sizeof(short)*nsems, GFP_KERNEL);
 	if (!new) {
-		ipc_rcu_putref(sma, sem_rcu_free);
+		ipc_rcu_putref(&sma->sem_perm, sem_rcu_free);
 		return ERR_PTR(-ENOMEM);
 	}
 
@@ -1932,7 +1927,7 @@ SYSCALL_DEFINE4(semtimedop, int, semid, struct sembuf __user *, tsops,
 	 */
 	if (nsops == 1) {
 		struct sem *curr;
-		curr = &sma->sem_base[sops->sem_num];
+		curr = &sma->sems[sops->sem_num];
 
 		if (alter) {
 			if (sma->complex_count) {
@@ -2146,7 +2141,7 @@ void exit_sem(struct task_struct *tsk)
 
 		/* perform adjustments registered in un */
 		for (i = 0; i < sma->sem_nsems; i++) {
-			struct sem *semaphore = &sma->sem_base[i];
+			struct sem *semaphore = &sma->sems[i];
 			if (un->semadj[i]) {
 				semaphore->semval += un->semadj[i];
 				/*
@@ -2184,7 +2179,8 @@ void exit_sem(struct task_struct *tsk)
 static int sysvipc_sem_proc_show(struct seq_file *s, void *it)
 {
 	struct user_namespace *user_ns = seq_user_ns(s);
-	struct sem_array *sma = it;
+	struct kern_ipc_perm *ipcp = it;
+	struct sem_array *sma = container_of(ipcp, struct sem_array, sem_perm);
 	time_t sem_otime;
 
 	/*
diff --git a/ipc/shm.c b/ipc/shm.c
index f45c7959b264..8828b4c3a190 100644
--- a/ipc/shm.c
+++ b/ipc/shm.c
@@ -174,11 +174,12 @@ static inline void shm_lock_by_ptr(struct shmid_kernel *ipcp)
 
 static void shm_rcu_free(struct rcu_head *head)
 {
-	struct ipc_rcu *p = container_of(head, struct ipc_rcu, rcu);
-	struct shmid_kernel *shp = ipc_rcu_to_struct(p);
-
+	struct kern_ipc_perm *ptr = container_of(head, struct kern_ipc_perm,
+							rcu);
+	struct shmid_kernel *shp = container_of(ptr, struct shmid_kernel,
+							shm_perm);
 	security_shm_free(shp);
-	ipc_rcu_free(head);
+	kvfree(shp);
 }
 
 static inline void shm_rmid(struct ipc_namespace *ns, struct shmid_kernel *s)
@@ -241,7 +242,7 @@ static void shm_destroy(struct ipc_namespace *ns, struct shmid_kernel *shp)
 		user_shm_unlock(i_size_read(file_inode(shm_file)),
 				shp->mlock_user);
 	fput(shm_file);
-	ipc_rcu_putref(shp, shm_rcu_free);
+	ipc_rcu_putref(&shp->shm_perm, shm_rcu_free);
 }
 
 /*
@@ -529,7 +530,6 @@ static int newseg(struct ipc_namespace *ns, struct ipc_params *params)
 	size_t numpages = (size + PAGE_SIZE - 1) >> PAGE_SHIFT;
 	struct file *file;
 	char name[13];
-	int id;
 	vm_flags_t acctflag = 0;
 
 	if (size < SHMMIN || size > ns->shm_ctlmax)
@@ -542,8 +542,8 @@ static int newseg(struct ipc_namespace *ns, struct ipc_params *params)
 			ns->shm_tot + numpages > ns->shm_ctlall)
 		return -ENOSPC;
 
-	shp = ipc_rcu_alloc(sizeof(*shp));
-	if (!shp)
+	shp = kvmalloc(sizeof(*shp), GFP_KERNEL);
+	if (unlikely(!shp))
 		return -ENOMEM;
 
 	shp->shm_perm.key = key;
@@ -553,7 +553,7 @@ static int newseg(struct ipc_namespace *ns, struct ipc_params *params)
 	shp->shm_perm.security = NULL;
 	error = security_shm_alloc(shp);
 	if (error) {
-		ipc_rcu_putref(shp, ipc_rcu_free);
+		kvfree(shp);
 		return error;
 	}
 
@@ -598,11 +598,9 @@ static int newseg(struct ipc_namespace *ns, struct ipc_params *params)
 	shp->shm_file = file;
 	shp->shm_creator = current;
 
-	id = ipc_addid(&shm_ids(ns), &shp->shm_perm, ns->shm_ctlmni);
-	if (id < 0) {
-		error = id;
+	error = ipc_addid(&shm_ids(ns), &shp->shm_perm, ns->shm_ctlmni);
+	if (error < 0)
 		goto no_id;
-	}
 
 	list_add(&shp->shm_clist, &current->sysvshm.shm_clist);
 
@@ -624,7 +622,7 @@ no_id:
 		user_shm_unlock(size, shp->mlock_user);
 	fput(file);
 no_file:
-	ipc_rcu_putref(shp, shm_rcu_free);
+	call_rcu(&shp->shm_perm.rcu, shm_rcu_free);
 	return error;
 }
 
@@ -1382,9 +1380,11 @@ SYSCALL_DEFINE1(shmdt, char __user *, shmaddr)
 static int sysvipc_shm_proc_show(struct seq_file *s, void *it)
 {
 	struct user_namespace *user_ns = seq_user_ns(s);
-	struct shmid_kernel *shp = it;
+	struct kern_ipc_perm *ipcp = it;
+	struct shmid_kernel *shp;
 	unsigned long rss = 0, swp = 0;
 
+	shp = container_of(ipcp, struct shmid_kernel, shm_perm);
 	shm_add_rss_swap(shp, &rss, &swp);
 
 #if BITS_PER_LONG <= 32
diff --git a/ipc/util.c b/ipc/util.c
index caec7b1bfaa3..1a2cb02467ab 100644
--- a/ipc/util.c
+++ b/ipc/util.c
@@ -232,6 +232,7 @@ int ipc_addid(struct ipc_ids *ids, struct kern_ipc_perm *new, int size)
 
 	idr_preload(GFP_KERNEL);
 
+	atomic_set(&new->refcount, 1);
 	spin_lock_init(&new->lock);
 	new->deleted = false;
 	rcu_read_lock();
@@ -394,70 +395,18 @@ void ipc_rmid(struct ipc_ids *ids, struct kern_ipc_perm *ipcp)
 	ipcp->deleted = true;
 }
 
-/**
- * ipc_alloc -	allocate ipc space
- * @size: size desired
- *
- * Allocate memory from the appropriate pools and return a pointer to it.
- * NULL is returned if the allocation fails
- */
-void *ipc_alloc(int size)
-{
-	return kvmalloc(size, GFP_KERNEL);
-}
-
-/**
- * ipc_free - free ipc space
- * @ptr: pointer returned by ipc_alloc
- *
- * Free a block created with ipc_alloc().
- */
-void ipc_free(void *ptr)
+int ipc_rcu_getref(struct kern_ipc_perm *ptr)
 {
-	kvfree(ptr);
+	return atomic_inc_not_zero(&ptr->refcount);
 }
 
-/**
- * ipc_rcu_alloc - allocate ipc and rcu space
- * @size: size desired
- *
- * Allocate memory for the rcu header structure +  the object.
- * Returns the pointer to the object or NULL upon failure.
- */
-void *ipc_rcu_alloc(int size)
+void ipc_rcu_putref(struct kern_ipc_perm *ptr,
+			void (*func)(struct rcu_head *head))
 {
-	/*
-	 * We prepend the allocation with the rcu struct
-	 */
-	struct ipc_rcu *out = ipc_alloc(sizeof(struct ipc_rcu) + size);
-	if (unlikely(!out))
-		return NULL;
-	atomic_set(&out->refcount, 1);
-	return out + 1;
-}
-
-int ipc_rcu_getref(void *ptr)
-{
-	struct ipc_rcu *p = ((struct ipc_rcu *)ptr) - 1;
-
-	return atomic_inc_not_zero(&p->refcount);
-}
-
-void ipc_rcu_putref(void *ptr, void (*func)(struct rcu_head *head))
-{
-	struct ipc_rcu *p = ((struct ipc_rcu *)ptr) - 1;
-
-	if (!atomic_dec_and_test(&p->refcount))
+	if (!atomic_dec_and_test(&ptr->refcount))
 		return;
 
-	call_rcu(&p->rcu, func);
-}
-
-void ipc_rcu_free(struct rcu_head *head)
-{
-	struct ipc_rcu *p = container_of(head, struct ipc_rcu, rcu);
-
-	kvfree(p);
+	call_rcu(&ptr->rcu, func);
 }
 
 /**
diff --git a/ipc/util.h b/ipc/util.h
index 60ddccca464d..c692010e6f0a 100644
--- a/ipc/util.h
+++ b/ipc/util.h
@@ -47,13 +47,6 @@ static inline void msg_exit_ns(struct ipc_namespace *ns) { }
 static inline void shm_exit_ns(struct ipc_namespace *ns) { }
 #endif
 
-struct ipc_rcu {
-	struct rcu_head rcu;
-	atomic_t refcount;
-} ____cacheline_aligned_in_smp;
-
-#define ipc_rcu_to_struct(p)  ((void *)(p+1))
-
 /*
  * Structure that holds the parameters needed by the ipc operations
  * (see after)
@@ -114,22 +107,18 @@ void ipc_rmid(struct ipc_ids *, struct kern_ipc_perm *);
 /* must be called with ipcp locked */
 int ipcperms(struct ipc_namespace *ns, struct kern_ipc_perm *ipcp, short flg);
 
-/* for rare, potentially huge allocations.
- * both function can sleep
- */
-void *ipc_alloc(int size);
-void ipc_free(void *ptr);
-
 /*
  * For allocation that need to be freed by RCU.
  * Objects are reference counted, they start with reference count 1.
  * getref increases the refcount, the putref call that reduces the recount
  * to 0 schedules the rcu destruction. Caller must guarantee locking.
+ *
+ * refcount is initialized by ipc_addid(), before that point call_rcu()
+ * must be used.
  */
-void *ipc_rcu_alloc(int size);
-int ipc_rcu_getref(void *ptr);
-void ipc_rcu_putref(void *ptr, void (*func)(struct rcu_head *head));
-void ipc_rcu_free(struct rcu_head *head);
+int ipc_rcu_getref(struct kern_ipc_perm *ptr);
+void ipc_rcu_putref(struct kern_ipc_perm *ptr,
+			void (*func)(struct rcu_head *head));
 
 struct kern_ipc_perm *ipc_lock(struct ipc_ids *, int);
 struct kern_ipc_perm *ipc_obtain_object_idr(struct ipc_ids *ids, int id);
diff --git a/kernel/Makefile b/kernel/Makefile
index 72aa080f91f0..4cb8e8b23c6e 100644
--- a/kernel/Makefile
+++ b/kernel/Makefile
@@ -82,7 +82,7 @@ obj-$(CONFIG_KPROBES) += kprobes.o
 obj-$(CONFIG_KGDB) += debug/
 obj-$(CONFIG_DETECT_HUNG_TASK) += hung_task.o
 obj-$(CONFIG_LOCKUP_DETECTOR) += watchdog.o
-obj-$(CONFIG_HARDLOCKUP_DETECTOR) += watchdog_hld.o
+obj-$(CONFIG_HARDLOCKUP_DETECTOR_PERF) += watchdog_hld.o
 obj-$(CONFIG_SECCOMP) += seccomp.o
 obj-$(CONFIG_RELAY) += relay.o
 obj-$(CONFIG_SYSCTL) += utsname_sysctl.o
diff --git a/kernel/audit.c b/kernel/audit.c
index 833267bbd80b..6dd556931739 100644
--- a/kernel/audit.c
+++ b/kernel/audit.c
@@ -641,6 +641,7 @@ static int auditd_send_unicast_skb(struct sk_buff *skb)
 	ac = rcu_dereference(auditd_conn);
 	if (!ac) {
 		rcu_read_unlock();
+		kfree_skb(skb);
 		rc = -ECONNREFUSED;
 		goto err;
 	}
diff --git a/kernel/audit_watch.c b/kernel/audit_watch.c
index 62d686d96581..9eb8b3511636 100644
--- a/kernel/audit_watch.c
+++ b/kernel/audit_watch.c
@@ -66,7 +66,7 @@ static struct fsnotify_group *audit_watch_group;
 
 /* fsnotify events we care about. */
 #define AUDIT_FS_WATCH (FS_MOVE | FS_CREATE | FS_DELETE | FS_DELETE_SELF |\
-			FS_MOVE_SELF | FS_EVENT_ON_CHILD)
+			FS_MOVE_SELF | FS_EVENT_ON_CHILD | FS_UNMOUNT)
 
 static void audit_free_parent(struct audit_parent *parent)
 {
@@ -457,13 +457,15 @@ void audit_remove_watch_rule(struct audit_krule *krule)
 	list_del(&krule->rlist);
 
 	if (list_empty(&watch->rules)) {
+		/*
+		 * audit_remove_watch() drops our reference to 'parent' which
+		 * can get freed. Grab our own reference to be safe.
+		 */
+		audit_get_parent(parent);
 		audit_remove_watch(watch);
-
-		if (list_empty(&parent->watches)) {
-			audit_get_parent(parent);
+		if (list_empty(&parent->watches))
 			fsnotify_destroy_mark(&parent->mark, audit_watch_group);
-			audit_put_parent(parent);
-		}
+		audit_put_parent(parent);
 	}
 }
 
diff --git a/kernel/bpf/inode.c b/kernel/bpf/inode.c
index 9bbd33497d3d..e833ed914358 100644
--- a/kernel/bpf/inode.c
+++ b/kernel/bpf/inode.c
@@ -377,10 +377,22 @@ static void bpf_evict_inode(struct inode *inode)
 		bpf_any_put(inode->i_private, type);
 }
 
+/*
+ * Display the mount options in /proc/mounts.
+ */
+static int bpf_show_options(struct seq_file *m, struct dentry *root)
+{
+	umode_t mode = d_inode(root)->i_mode & S_IALLUGO & ~S_ISVTX;
+
+	if (mode != S_IRWXUGO)
+		seq_printf(m, ",mode=%o", mode);
+	return 0;
+}
+
 static const struct super_operations bpf_super_ops = {
 	.statfs		= simple_statfs,
 	.drop_inode	= generic_delete_inode,
-	.show_options	= generic_show_options,
+	.show_options	= bpf_show_options,
 	.evict_inode	= bpf_evict_inode,
 };
 
@@ -434,8 +446,6 @@ static int bpf_fill_super(struct super_block *sb, void *data, int silent)
 	struct inode *inode;
 	int ret;
 
-	save_mount_options(sb, data);
-
 	ret = bpf_parse_options(data, &opts);
 	if (ret)
 		return ret;
diff --git a/kernel/bpf/syscall.c b/kernel/bpf/syscall.c
index 045646da97cc..6c772adabad2 100644
--- a/kernel/bpf/syscall.c
+++ b/kernel/bpf/syscall.c
@@ -1289,7 +1289,7 @@ static int bpf_prog_get_info_by_fd(struct bpf_prog *prog,
 	info_len = min_t(u32, sizeof(info), info_len);
 
 	if (copy_from_user(&info, uinfo, info_len))
-		return err;
+		return -EFAULT;
 
 	info.type = prog->type;
 	info.id = prog->aux->id;
@@ -1312,7 +1312,7 @@ static int bpf_prog_get_info_by_fd(struct bpf_prog *prog,
 	}
 
 	ulen = info.xlated_prog_len;
-	info.xlated_prog_len = bpf_prog_size(prog->len);
+	info.xlated_prog_len = bpf_prog_insn_size(prog);
 	if (info.xlated_prog_len && ulen) {
 		uinsns = u64_to_user_ptr(info.xlated_prog_insns);
 		ulen = min_t(u32, info.xlated_prog_len, ulen);
diff --git a/kernel/bpf/verifier.c b/kernel/bpf/verifier.c
index 6a86723c5b64..664d93972373 100644
--- a/kernel/bpf/verifier.c
+++ b/kernel/bpf/verifier.c
@@ -504,6 +504,7 @@ static void reset_reg_range_values(struct bpf_reg_state *regs, u32 regno)
 {
 	regs[regno].min_value = BPF_REGISTER_MIN_RANGE;
 	regs[regno].max_value = BPF_REGISTER_MAX_RANGE;
+	regs[regno].value_from_signed = false;
 	regs[regno].min_align = 0;
 }
 
@@ -777,12 +778,13 @@ static int check_ctx_access(struct bpf_verifier_env *env, int insn_idx, int off,
 	return -EACCES;
 }
 
-static bool is_pointer_value(struct bpf_verifier_env *env, int regno)
+static bool __is_pointer_value(bool allow_ptr_leaks,
+			       const struct bpf_reg_state *reg)
 {
-	if (env->allow_ptr_leaks)
+	if (allow_ptr_leaks)
 		return false;
 
-	switch (env->cur_state.regs[regno].type) {
+	switch (reg->type) {
 	case UNKNOWN_VALUE:
 	case CONST_IMM:
 		return false;
@@ -791,6 +793,11 @@ static bool is_pointer_value(struct bpf_verifier_env *env, int regno)
 	}
 }
 
+static bool is_pointer_value(struct bpf_verifier_env *env, int regno)
+{
+	return __is_pointer_value(env->allow_ptr_leaks, &env->cur_state.regs[regno]);
+}
+
 static int check_pkt_ptr_alignment(const struct bpf_reg_state *reg,
 				   int off, int size, bool strict)
 {
@@ -1832,10 +1839,24 @@ static void adjust_reg_min_max_vals(struct bpf_verifier_env *env,
 	dst_align = dst_reg->min_align;
 
 	/* We don't know anything about what was done to this register, mark it
-	 * as unknown.
+	 * as unknown. Also, if both derived bounds came from signed/unsigned
+	 * mixed compares and one side is unbounded, we cannot really do anything
+	 * with them as boundaries cannot be trusted. Thus, arithmetic of two
+	 * regs of such kind will get invalidated bounds on the dst side.
 	 */
-	if (min_val == BPF_REGISTER_MIN_RANGE &&
-	    max_val == BPF_REGISTER_MAX_RANGE) {
+	if ((min_val == BPF_REGISTER_MIN_RANGE &&
+	     max_val == BPF_REGISTER_MAX_RANGE) ||
+	    (BPF_SRC(insn->code) == BPF_X &&
+	     ((min_val != BPF_REGISTER_MIN_RANGE &&
+	       max_val == BPF_REGISTER_MAX_RANGE) ||
+	      (min_val == BPF_REGISTER_MIN_RANGE &&
+	       max_val != BPF_REGISTER_MAX_RANGE) ||
+	      (dst_reg->min_value != BPF_REGISTER_MIN_RANGE &&
+	       dst_reg->max_value == BPF_REGISTER_MAX_RANGE) ||
+	      (dst_reg->min_value == BPF_REGISTER_MIN_RANGE &&
+	       dst_reg->max_value != BPF_REGISTER_MAX_RANGE)) &&
+	     regs[insn->dst_reg].value_from_signed !=
+	     regs[insn->src_reg].value_from_signed)) {
 		reset_reg_range_values(regs, insn->dst_reg);
 		return;
 	}
@@ -1844,10 +1865,12 @@ static void adjust_reg_min_max_vals(struct bpf_verifier_env *env,
 	 * do our normal operations to the register, we need to set the values
 	 * to the min/max since they are undefined.
 	 */
-	if (min_val == BPF_REGISTER_MIN_RANGE)
-		dst_reg->min_value = BPF_REGISTER_MIN_RANGE;
-	if (max_val == BPF_REGISTER_MAX_RANGE)
-		dst_reg->max_value = BPF_REGISTER_MAX_RANGE;
+	if (opcode != BPF_SUB) {
+		if (min_val == BPF_REGISTER_MIN_RANGE)
+			dst_reg->min_value = BPF_REGISTER_MIN_RANGE;
+		if (max_val == BPF_REGISTER_MAX_RANGE)
+			dst_reg->max_value = BPF_REGISTER_MAX_RANGE;
+	}
 
 	switch (opcode) {
 	case BPF_ADD:
@@ -1858,10 +1881,17 @@ static void adjust_reg_min_max_vals(struct bpf_verifier_env *env,
 		dst_reg->min_align = min(src_align, dst_align);
 		break;
 	case BPF_SUB:
+		/* If one of our values was at the end of our ranges, then the
+		 * _opposite_ value in the dst_reg goes to the end of our range.
+		 */
+		if (min_val == BPF_REGISTER_MIN_RANGE)
+			dst_reg->max_value = BPF_REGISTER_MAX_RANGE;
+		if (max_val == BPF_REGISTER_MAX_RANGE)
+			dst_reg->min_value = BPF_REGISTER_MIN_RANGE;
 		if (dst_reg->min_value != BPF_REGISTER_MIN_RANGE)
-			dst_reg->min_value -= min_val;
+			dst_reg->min_value -= max_val;
 		if (dst_reg->max_value != BPF_REGISTER_MAX_RANGE)
-			dst_reg->max_value -= max_val;
+			dst_reg->max_value -= min_val;
 		dst_reg->min_align = min(src_align, dst_align);
 		break;
 	case BPF_MUL:
@@ -2023,6 +2053,7 @@ static int check_alu_op(struct bpf_verifier_env *env, struct bpf_insn *insn)
 			regs[insn->dst_reg].max_value = insn->imm;
 			regs[insn->dst_reg].min_value = insn->imm;
 			regs[insn->dst_reg].min_align = calc_align(insn->imm);
+			regs[insn->dst_reg].value_from_signed = false;
 		}
 
 	} else if (opcode > BPF_END) {
@@ -2198,40 +2229,63 @@ static void reg_set_min_max(struct bpf_reg_state *true_reg,
 			    struct bpf_reg_state *false_reg, u64 val,
 			    u8 opcode)
 {
+	bool value_from_signed = true;
+	bool is_range = true;
+
 	switch (opcode) {
 	case BPF_JEQ:
 		/* If this is false then we know nothing Jon Snow, but if it is
 		 * true then we know for sure.
 		 */
 		true_reg->max_value = true_reg->min_value = val;
+		is_range = false;
 		break;
 	case BPF_JNE:
 		/* If this is true we know nothing Jon Snow, but if it is false
 		 * we know the value for sure;
 		 */
 		false_reg->max_value = false_reg->min_value = val;
+		is_range = false;
 		break;
 	case BPF_JGT:
-		/* Unsigned comparison, the minimum value is 0. */
-		false_reg->min_value = 0;
+		value_from_signed = false;
 		/* fallthrough */
 	case BPF_JSGT:
+		if (true_reg->value_from_signed != value_from_signed)
+			reset_reg_range_values(true_reg, 0);
+		if (false_reg->value_from_signed != value_from_signed)
+			reset_reg_range_values(false_reg, 0);
+		if (opcode == BPF_JGT) {
+			/* Unsigned comparison, the minimum value is 0. */
+			false_reg->min_value = 0;
+		}
 		/* If this is false then we know the maximum val is val,
 		 * otherwise we know the min val is val+1.
 		 */
 		false_reg->max_value = val;
+		false_reg->value_from_signed = value_from_signed;
 		true_reg->min_value = val + 1;
+		true_reg->value_from_signed = value_from_signed;
 		break;
 	case BPF_JGE:
-		/* Unsigned comparison, the minimum value is 0. */
-		false_reg->min_value = 0;
+		value_from_signed = false;
 		/* fallthrough */
 	case BPF_JSGE:
+		if (true_reg->value_from_signed != value_from_signed)
+			reset_reg_range_values(true_reg, 0);
+		if (false_reg->value_from_signed != value_from_signed)
+			reset_reg_range_values(false_reg, 0);
+		if (opcode == BPF_JGE) {
+			/* Unsigned comparison, the minimum value is 0. */
+			false_reg->min_value = 0;
+		}
 		/* If this is false then we know the maximum value is val - 1,
 		 * otherwise we know the mimimum value is val.
 		 */
 		false_reg->max_value = val - 1;
+		false_reg->value_from_signed = value_from_signed;
 		true_reg->min_value = val;
+		true_reg->value_from_signed = value_from_signed;
 		break;
 	default:
 		break;
@@ -2239,6 +2293,12 @@ static void reg_set_min_max(struct bpf_reg_state *true_reg,
 
 	check_reg_overflow(false_reg);
 	check_reg_overflow(true_reg);
+	if (is_range) {
+		if (__is_pointer_value(false, false_reg))
+			reset_reg_range_values(false_reg, 0);
+		if (__is_pointer_value(false, true_reg))
+			reset_reg_range_values(true_reg, 0);
+	}
 }
 
 /* Same as above, but for the case that dst_reg is a CONST_IMM reg and src_reg
@@ -2248,41 +2308,64 @@ static void reg_set_min_max_inv(struct bpf_reg_state *true_reg,
 				struct bpf_reg_state *false_reg, u64 val,
 				u8 opcode)
 {
+	bool value_from_signed = true;
+	bool is_range = true;
+
 	switch (opcode) {
 	case BPF_JEQ:
 		/* If this is false then we know nothing Jon Snow, but if it is
 		 * true then we know for sure.
 		 */
 		true_reg->max_value = true_reg->min_value = val;
+		is_range = false;
 		break;
 	case BPF_JNE:
 		/* If this is true we know nothing Jon Snow, but if it is false
 		 * we know the value for sure;
 		 */
 		false_reg->max_value = false_reg->min_value = val;
+		is_range = false;
 		break;
 	case BPF_JGT:
-		/* Unsigned comparison, the minimum value is 0. */
-		true_reg->min_value = 0;
+		value_from_signed = false;
 		/* fallthrough */
 	case BPF_JSGT:
+		if (true_reg->value_from_signed != value_from_signed)
+			reset_reg_range_values(true_reg, 0);
+		if (false_reg->value_from_signed != value_from_signed)
+			reset_reg_range_values(false_reg, 0);
+		if (opcode == BPF_JGT) {
+			/* Unsigned comparison, the minimum value is 0. */
+			true_reg->min_value = 0;
+		}
 		/*
 		 * If this is false, then the val is <= the register, if it is
 		 * true the register <= to the val.
 		 */
 		false_reg->min_value = val;
+		false_reg->value_from_signed = value_from_signed;
 		true_reg->max_value = val - 1;
+		true_reg->value_from_signed = value_from_signed;
 		break;
 	case BPF_JGE:
-		/* Unsigned comparison, the minimum value is 0. */
-		true_reg->min_value = 0;
+		value_from_signed = false;
 		/* fallthrough */
 	case BPF_JSGE:
+		if (true_reg->value_from_signed != value_from_signed)
+			reset_reg_range_values(true_reg, 0);
+		if (false_reg->value_from_signed != value_from_signed)
+			reset_reg_range_values(false_reg, 0);
+		if (opcode == BPF_JGE) {
+			/* Unsigned comparison, the minimum value is 0. */
+			true_reg->min_value = 0;
+		}
 		/* If this is false then constant < register, if it is true then
 		 * the register < constant.
 		 */
 		false_reg->min_value = val + 1;
+		false_reg->value_from_signed = value_from_signed;
 		true_reg->max_value = val;
+		true_reg->value_from_signed = value_from_signed;
 		break;
 	default:
 		break;
@@ -2290,6 +2373,12 @@ static void reg_set_min_max_inv(struct bpf_reg_state *true_reg,
 
 	check_reg_overflow(false_reg);
 	check_reg_overflow(true_reg);
+	if (is_range) {
+		if (__is_pointer_value(false, false_reg))
+			reset_reg_range_values(false_reg, 0);
+		if (__is_pointer_value(false, true_reg))
+			reset_reg_range_values(true_reg, 0);
+	}
 }
 
 static void mark_map_reg(struct bpf_reg_state *regs, u32 regno, u32 id,
diff --git a/kernel/cgroup/cgroup-internal.h b/kernel/cgroup/cgroup-internal.h
index 793565c05742..8b4c3c2f2509 100644
--- a/kernel/cgroup/cgroup-internal.h
+++ b/kernel/cgroup/cgroup-internal.h
@@ -33,6 +33,9 @@ struct cgroup_taskset {
 	struct list_head	src_csets;
 	struct list_head	dst_csets;
 
+	/* the number of tasks in the set */
+	int			nr_tasks;
+
 	/* the subsys currently being processed */
 	int			ssid;
 
diff --git a/kernel/cgroup/cgroup.c b/kernel/cgroup/cgroup.c
index 620794a20a33..df2e0f14a95d 100644
--- a/kernel/cgroup/cgroup.c
+++ b/kernel/cgroup/cgroup.c
@@ -2006,6 +2006,8 @@ static void cgroup_migrate_add_task(struct task_struct *task,
 	if (!cset->mg_src_cgrp)
 		return;
 
+	mgctx->tset.nr_tasks++;
+
 	list_move_tail(&task->cg_list, &cset->mg_tasks);
 	if (list_empty(&cset->mg_node))
 		list_add_tail(&cset->mg_node,
@@ -2094,21 +2096,19 @@ static int cgroup_migrate_execute(struct cgroup_mgctx *mgctx)
 	struct css_set *cset, *tmp_cset;
 	int ssid, failed_ssid, ret;
 
-	/* methods shouldn't be called if no task is actually migrating */
-	if (list_empty(&tset->src_csets))
-		return 0;
-
 	/* check that we can legitimately attach to the cgroup */
-	do_each_subsys_mask(ss, ssid, mgctx->ss_mask) {
-		if (ss->can_attach) {
-			tset->ssid = ssid;
-			ret = ss->can_attach(tset);
-			if (ret) {
-				failed_ssid = ssid;
-				goto out_cancel_attach;
+	if (tset->nr_tasks) {
+		do_each_subsys_mask(ss, ssid, mgctx->ss_mask) {
+			if (ss->can_attach) {
+				tset->ssid = ssid;
+				ret = ss->can_attach(tset);
+				if (ret) {
+					failed_ssid = ssid;
+					goto out_cancel_attach;
+				}
 			}
-		}
-	} while_each_subsys_mask();
+		} while_each_subsys_mask();
+	}
 
 	/*
 	 * Now that we're guaranteed success, proceed to move all tasks to
@@ -2137,25 +2137,29 @@ static int cgroup_migrate_execute(struct cgroup_mgctx *mgctx)
 	 */
 	tset->csets = &tset->dst_csets;
 
-	do_each_subsys_mask(ss, ssid, mgctx->ss_mask) {
-		if (ss->attach) {
-			tset->ssid = ssid;
-			ss->attach(tset);
-		}
-	} while_each_subsys_mask();
+	if (tset->nr_tasks) {
+		do_each_subsys_mask(ss, ssid, mgctx->ss_mask) {
+			if (ss->attach) {
+				tset->ssid = ssid;
+				ss->attach(tset);
+			}
+		} while_each_subsys_mask();
+	}
 
 	ret = 0;
 	goto out_release_tset;
 
 out_cancel_attach:
-	do_each_subsys_mask(ss, ssid, mgctx->ss_mask) {
-		if (ssid == failed_ssid)
-			break;
-		if (ss->cancel_attach) {
-			tset->ssid = ssid;
-			ss->cancel_attach(tset);
-		}
-	} while_each_subsys_mask();
+	if (tset->nr_tasks) {
+		do_each_subsys_mask(ss, ssid, mgctx->ss_mask) {
+			if (ssid == failed_ssid)
+				break;
+			if (ss->cancel_attach) {
+				tset->ssid = ssid;
+				ss->cancel_attach(tset);
+			}
+		} while_each_subsys_mask();
+	}
 out_release_tset:
 	spin_lock_irq(&css_set_lock);
 	list_splice_init(&tset->dst_csets, &tset->src_csets);
@@ -2997,11 +3001,11 @@ static ssize_t cgroup_subtree_control_write(struct kernfs_open_file *of,
 	cgrp->subtree_control &= ~disable;
 
 	ret = cgroup_apply_control(cgrp);
-
 	cgroup_finalize_control(cgrp, ret);
+	if (ret)
+		goto out_unlock;
 
 	kernfs_activate(cgrp->kn);
-	ret = 0;
 out_unlock:
 	cgroup_kn_unlock(of->kn);
 	return ret ?: nbytes;
@@ -4669,6 +4673,10 @@ int __init cgroup_init(void)
 
 		if (ss->bind)
 			ss->bind(init_css_set.subsys[ssid]);
+
+		mutex_lock(&cgroup_mutex);
+		css_populate_dir(init_css_set.subsys[ssid]);
+		mutex_unlock(&cgroup_mutex);
 	}
 
 	/* init_css_set.subsys[] has been updated, re-hash */
diff --git a/kernel/cgroup/cpuset.c b/kernel/cgroup/cpuset.c
index ca8376e5008c..8d5151688504 100644
--- a/kernel/cgroup/cpuset.c
+++ b/kernel/cgroup/cpuset.c
@@ -63,6 +63,7 @@
 #include <linux/cgroup.h>
 #include <linux/wait.h>
 
+DEFINE_STATIC_KEY_FALSE(cpusets_pre_enable_key);
 DEFINE_STATIC_KEY_FALSE(cpusets_enabled_key);
 
 /* See "Frequency meter" comments, below. */
diff --git a/kernel/cpu.c b/kernel/cpu.c
index ab860453841d..eee033134262 100644
--- a/kernel/cpu.c
+++ b/kernel/cpu.c
@@ -279,7 +279,8 @@ static int bringup_wait_for_ap(unsigned int cpu)
 
 	/* Wait for the CPU to reach CPUHP_AP_ONLINE_IDLE */
 	wait_for_completion(&st->done);
-	BUG_ON(!cpu_online(cpu));
+	if (WARN_ON_ONCE((!cpu_online(cpu))))
+		return -ECANCELED;
 
 	/* Unpark the stopper thread and the hotplug thread of the target cpu */
 	stop_machine_unpark(cpu);
diff --git a/kernel/crash_core.c b/kernel/crash_core.c
index fcbd568f1e95..6db80fc0810b 100644
--- a/kernel/crash_core.c
+++ b/kernel/crash_core.c
@@ -14,10 +14,12 @@
 #include <asm/sections.h>
 
 /* vmcoreinfo stuff */
-static unsigned char vmcoreinfo_data[VMCOREINFO_BYTES];
-u32 vmcoreinfo_note[VMCOREINFO_NOTE_SIZE/4];
-size_t vmcoreinfo_size;
-size_t vmcoreinfo_max_size = sizeof(vmcoreinfo_data);
+static unsigned char *vmcoreinfo_data;
+static size_t vmcoreinfo_size;
+u32 *vmcoreinfo_note;
+
+/* trusted vmcoreinfo, e.g. we can make a copy in the crash memory */
+static unsigned char *vmcoreinfo_data_safecopy;
 
 /*
  * parsing the "crashkernel" commandline
@@ -324,8 +326,23 @@ static void update_vmcoreinfo_note(void)
 	final_note(buf);
 }
 
+void crash_update_vmcoreinfo_safecopy(void *ptr)
+{
+	if (ptr)
+		memcpy(ptr, vmcoreinfo_data, vmcoreinfo_size);
+
+	vmcoreinfo_data_safecopy = ptr;
+}
+
 void crash_save_vmcoreinfo(void)
 {
+	if (!vmcoreinfo_note)
+		return;
+
+	/* Use the safe copy to generate vmcoreinfo note if have */
+	if (vmcoreinfo_data_safecopy)
+		vmcoreinfo_data = vmcoreinfo_data_safecopy;
+
 	vmcoreinfo_append_str("CRASHTIME=%ld\n", get_seconds());
 	update_vmcoreinfo_note();
 }
@@ -340,7 +357,7 @@ void vmcoreinfo_append_str(const char *fmt, ...)
 	r = vscnprintf(buf, sizeof(buf), fmt, args);
 	va_end(args);
 
-	r = min(r, vmcoreinfo_max_size - vmcoreinfo_size);
+	r = min(r, (size_t)VMCOREINFO_BYTES - vmcoreinfo_size);
 
 	memcpy(&vmcoreinfo_data[vmcoreinfo_size], buf, r);
 
@@ -356,11 +373,26 @@ void __weak arch_crash_save_vmcoreinfo(void)
 
 phys_addr_t __weak paddr_vmcoreinfo_note(void)
 {
-	return __pa_symbol((unsigned long)(char *)&vmcoreinfo_note);
+	return __pa(vmcoreinfo_note);
 }
 
 static int __init crash_save_vmcoreinfo_init(void)
 {
+	vmcoreinfo_data = (unsigned char *)get_zeroed_page(GFP_KERNEL);
+	if (!vmcoreinfo_data) {
+		pr_warn("Memory allocation for vmcoreinfo_data failed\n");
+		return -ENOMEM;
+	}
+
+	vmcoreinfo_note = alloc_pages_exact(VMCOREINFO_NOTE_SIZE,
+						GFP_KERNEL | __GFP_ZERO);
+	if (!vmcoreinfo_note) {
+		free_page((unsigned long)vmcoreinfo_data);
+		vmcoreinfo_data = NULL;
+		pr_warn("Memory allocation for vmcoreinfo_note failed\n");
+		return -ENOMEM;
+	}
+
 	VMCOREINFO_OSRELEASE(init_uts_ns.name.release);
 	VMCOREINFO_PAGESIZE(PAGE_SIZE);
 
diff --git a/kernel/events/core.c b/kernel/events/core.c
index 1538df9b2b65..ee20d4c546b5 100644
--- a/kernel/events/core.c
+++ b/kernel/events/core.c
@@ -1452,6 +1452,13 @@ static enum event_type_t get_event_type(struct perf_event *event)
 
 	lockdep_assert_held(&ctx->lock);
 
+	/*
+	 * It's 'group type', really, because if our group leader is
+	 * pinned, so are we.
+	 */
+	if (event->group_leader != event)
+		event = event->group_leader;
+
 	event_type = event->attr.pinned ? EVENT_PINNED : EVENT_FLEXIBLE;
 	if (!ctx->task)
 		event_type |= EVENT_CPU;
@@ -2210,6 +2217,33 @@ static int group_can_go_on(struct perf_event *event,
 	return can_add_hw;
 }
 
+/*
+ * Complement to update_event_times(). This computes the tstamp_* values to
+ * continue 'enabled' state from @now, and effectively discards the time
+ * between the prior tstamp_stopped and now (as we were in the OFF state, or
+ * just switched (context) time base).
+ *
+ * This further assumes '@event->state == INACTIVE' (we just came from OFF) and
+ * cannot have been scheduled in yet. And going into INACTIVE state means
+ * '@event->tstamp_stopped = @now'.
+ *
+ * Thus given the rules of update_event_times():
+ *
+ *   total_time_enabled = tstamp_stopped - tstamp_enabled
+ *   total_time_running = tstamp_stopped - tstamp_running
+ *
+ * We can insert 'tstamp_stopped == now' and reverse them to compute new
+ * tstamp_* values.
+ */
+static void __perf_event_enable_time(struct perf_event *event, u64 now)
+{
+	WARN_ON_ONCE(event->state != PERF_EVENT_STATE_INACTIVE);
+
+	event->tstamp_stopped = now;
+	event->tstamp_enabled = now - event->total_time_enabled;
+	event->tstamp_running = now - event->total_time_running;
+}
+
 static void add_event_to_ctx(struct perf_event *event,
 			       struct perf_event_context *ctx)
 {
@@ -2217,9 +2251,12 @@ static void add_event_to_ctx(struct perf_event *event,
 
 	list_add_event(event, ctx);
 	perf_group_attach(event);
-	event->tstamp_enabled = tstamp;
-	event->tstamp_running = tstamp;
-	event->tstamp_stopped = tstamp;
+	/*
+	 * We can be called with event->state == STATE_OFF when we create with
+	 * .disabled = 1. In that case the IOC_ENABLE will call this function.
+	 */
+	if (event->state == PERF_EVENT_STATE_INACTIVE)
+		__perf_event_enable_time(event, tstamp);
 }
 
 static void ctx_sched_out(struct perf_event_context *ctx,
@@ -2464,10 +2501,11 @@ static void __perf_event_mark_enabled(struct perf_event *event)
 	u64 tstamp = perf_event_time(event);
 
 	event->state = PERF_EVENT_STATE_INACTIVE;
-	event->tstamp_enabled = tstamp - event->total_time_enabled;
+	__perf_event_enable_time(event, tstamp);
 	list_for_each_entry(sub, &event->sibling_list, group_entry) {
+		/* XXX should not be > INACTIVE if event isn't */
 		if (sub->state >= PERF_EVENT_STATE_INACTIVE)
-			sub->tstamp_enabled = tstamp - sub->total_time_enabled;
+			__perf_event_enable_time(sub, tstamp);
 	}
 }
 
@@ -4378,7 +4416,9 @@ EXPORT_SYMBOL_GPL(perf_event_read_value);
 static int __perf_read_group_add(struct perf_event *leader,
 					u64 read_format, u64 *values)
 {
+	struct perf_event_context *ctx = leader->ctx;
 	struct perf_event *sub;
+	unsigned long flags;
 	int n = 1; /* skip @nr */
 	int ret;
 
@@ -4408,12 +4448,15 @@ static int __perf_read_group_add(struct perf_event *leader,
 	if (read_format & PERF_FORMAT_ID)
 		values[n++] = primary_event_id(leader);
 
+	raw_spin_lock_irqsave(&ctx->lock, flags);
+
 	list_for_each_entry(sub, &leader->sibling_list, group_entry) {
 		values[n++] += perf_event_count(sub);
 		if (read_format & PERF_FORMAT_ID)
 			values[n++] = primary_event_id(sub);
 	}
 
+	raw_spin_unlock_irqrestore(&ctx->lock, flags);
 	return 0;
 }
 
@@ -5078,7 +5121,7 @@ static void perf_mmap_open(struct vm_area_struct *vma)
 		atomic_inc(&event->rb->aux_mmap_count);
 
 	if (event->pmu->event_mapped)
-		event->pmu->event_mapped(event);
+		event->pmu->event_mapped(event, vma->vm_mm);
 }
 
 static void perf_pmu_output_stop(struct perf_event *event);
@@ -5101,7 +5144,7 @@ static void perf_mmap_close(struct vm_area_struct *vma)
 	unsigned long size = perf_data_size(rb);
 
 	if (event->pmu->event_unmapped)
-		event->pmu->event_unmapped(event);
+		event->pmu->event_unmapped(event, vma->vm_mm);
 
 	/*
 	 * rb->aux_mmap_count will always drop before rb->mmap_count and
@@ -5399,7 +5442,7 @@ aux_unlock:
 	vma->vm_ops = &perf_mmap_vmops;
 
 	if (event->pmu->event_mapped)
-		event->pmu->event_mapped(event);
+		event->pmu->event_mapped(event, vma->vm_mm);
 
 	return ret;
 }
@@ -7321,21 +7364,6 @@ int perf_event_account_interrupt(struct perf_event *event)
 	return __perf_event_account_interrupt(event, 1);
 }
 
-static bool sample_is_allowed(struct perf_event *event, struct pt_regs *regs)
-{
-	/*
-	 * Due to interrupt latency (AKA "skid"), we may enter the
-	 * kernel before taking an overflow, even if the PMU is only
-	 * counting user events.
-	 * To avoid leaking information to userspace, we must always
-	 * reject kernel samples when exclude_kernel is set.
-	 */
-	if (event->attr.exclude_kernel && !user_mode(regs))
-		return false;
-
-	return true;
-}
-
 /*
  * Generic event overflow handling, sampling.
  */
@@ -7357,12 +7385,6 @@ static int __perf_event_overflow(struct perf_event *event,
 	ret = __perf_event_account_interrupt(event, throttle);
 
 	/*
-	 * For security, drop the skid kernel samples if necessary.
-	 */
-	if (!sample_is_allowed(event, regs))
-		return ret;
-
-	/*
 	 * XXX event_limit might not quite work as expected on inherited
 	 * events
 	 */
diff --git a/kernel/fork.c b/kernel/fork.c
index 0f69a3e5281e..e075b7780421 100644
--- a/kernel/fork.c
+++ b/kernel/fork.c
@@ -205,19 +205,17 @@ static unsigned long *alloc_thread_stack_node(struct task_struct *tsk, int node)
 	void *stack;
 	int i;
 
-	local_irq_disable();
 	for (i = 0; i < NR_CACHED_STACKS; i++) {
-		struct vm_struct *s = this_cpu_read(cached_stacks[i]);
+		struct vm_struct *s;
+
+		s = this_cpu_xchg(cached_stacks[i], NULL);
 
 		if (!s)
 			continue;
-		this_cpu_write(cached_stacks[i], NULL);
 
 		tsk->stack_vm_area = s;
-		local_irq_enable();
 		return s->addr;
 	}
-	local_irq_enable();
 
 	stack = __vmalloc_node_range(THREAD_SIZE, THREAD_SIZE,
 				     VMALLOC_START, VMALLOC_END,
@@ -245,19 +243,15 @@ static inline void free_thread_stack(struct task_struct *tsk)
 {
 #ifdef CONFIG_VMAP_STACK
 	if (task_stack_vm_area(tsk)) {
-		unsigned long flags;
 		int i;
 
-		local_irq_save(flags);
 		for (i = 0; i < NR_CACHED_STACKS; i++) {
-			if (this_cpu_read(cached_stacks[i]))
+			if (this_cpu_cmpxchg(cached_stacks[i],
+					NULL, tsk->stack_vm_area) != NULL)
 				continue;
 
-			this_cpu_write(cached_stacks[i], tsk->stack_vm_area);
-			local_irq_restore(flags);
 			return;
 		}
-		local_irq_restore(flags);
 
 		vfree_atomic(tsk->stack);
 		return;
@@ -560,7 +554,7 @@ static struct task_struct *dup_task_struct(struct task_struct *orig, int node)
 	set_task_stack_end_magic(tsk);
 
 #ifdef CONFIG_CC_STACKPROTECTOR
-	tsk->stack_canary = get_random_long();
+	tsk->stack_canary = get_random_canary();
 #endif
 
 	/*
@@ -579,6 +573,10 @@ static struct task_struct *dup_task_struct(struct task_struct *orig, int node)
 
 	kcov_task_init(tsk);
 
+#ifdef CONFIG_FAULT_INJECTION
+	tsk->fail_nth = 0;
+#endif
+
 	return tsk;
 
 free_stack:
@@ -809,7 +807,7 @@ static struct mm_struct *mm_init(struct mm_struct *mm, struct task_struct *p,
 	mm_init_aio(mm);
 	mm_init_owner(mm, p);
 	mmu_notifier_mm_init(mm);
-	clear_tlb_flush_pending(mm);
+	init_tlb_flush_pending(mm);
 #if defined(CONFIG_TRANSPARENT_HUGEPAGE) && !USE_SPLIT_PMD_PTLOCKS
 	mm->pmd_huge_pte = NULL;
 #endif
diff --git a/kernel/futex.c b/kernel/futex.c
index c934689043b2..f50b434756c1 100644
--- a/kernel/futex.c
+++ b/kernel/futex.c
@@ -212,7 +212,7 @@ struct futex_pi_state {
 	atomic_t refcount;
 
 	union futex_key key;
-};
+} __randomize_layout;
 
 /**
  * struct futex_q - The hashed futex queue entry, one per waiting task
@@ -246,7 +246,7 @@ struct futex_q {
 	struct rt_mutex_waiter *rt_waiter;
 	union futex_key *requeue_pi_key;
 	u32 bitset;
-};
+} __randomize_layout;
 
 static const struct futex_q futex_q_init = {
 	/* list gets initialized in queue_me()*/
@@ -670,13 +670,14 @@ again:
 		 * this reference was taken by ihold under the page lock
 		 * pinning the inode in place so i_lock was unnecessary. The
 		 * only way for this check to fail is if the inode was
-		 * truncated in parallel so warn for now if this happens.
+		 * truncated in parallel which is almost certainly an
+		 * application bug. In such a case, just retry.
 		 *
 		 * We are not calling into get_futex_key_refs() in file-backed
 		 * cases, therefore a successful atomic_inc return below will
 		 * guarantee that get_futex_key() will still imply smp_mb(); (B).
 		 */
-		if (WARN_ON_ONCE(!atomic_inc_not_zero(&inode->i_count))) {
+		if (!atomic_inc_not_zero(&inode->i_count)) {
 			rcu_read_unlock();
 			put_page(page);
 
diff --git a/kernel/irq/chip.c b/kernel/irq/chip.c
index d171bc57e1e0..3675c6004f2a 100644
--- a/kernel/irq/chip.c
+++ b/kernel/irq/chip.c
@@ -170,21 +170,11 @@ static void irq_state_clr_disabled(struct irq_desc *desc)
 	irqd_clear(&desc->irq_data, IRQD_IRQ_DISABLED);
 }
 
-static void irq_state_set_disabled(struct irq_desc *desc)
-{
-	irqd_set(&desc->irq_data, IRQD_IRQ_DISABLED);
-}
-
 static void irq_state_clr_masked(struct irq_desc *desc)
 {
 	irqd_clear(&desc->irq_data, IRQD_IRQ_MASKED);
 }
 
-static void irq_state_set_masked(struct irq_desc *desc)
-{
-	irqd_set(&desc->irq_data, IRQD_IRQ_MASKED);
-}
-
 static void irq_state_clr_started(struct irq_desc *desc)
 {
 	irqd_clear(&desc->irq_data, IRQD_IRQ_STARTED);
@@ -1010,7 +1000,7 @@ EXPORT_SYMBOL_GPL(irq_set_chip_and_handler_name);
 
 void irq_modify_status(unsigned int irq, unsigned long clr, unsigned long set)
 {
-	unsigned long flags;
+	unsigned long flags, trigger, tmp;
 	struct irq_desc *desc = irq_get_desc_lock(irq, &flags, 0);
 
 	if (!desc)
@@ -1024,6 +1014,8 @@ void irq_modify_status(unsigned int irq, unsigned long clr, unsigned long set)
 
 	irq_settings_clr_and_set(desc, clr, set);
 
+	trigger = irqd_get_trigger_type(&desc->irq_data);
+
 	irqd_clear(&desc->irq_data, IRQD_NO_BALANCING | IRQD_PER_CPU |
 		   IRQD_TRIGGER_MASK | IRQD_LEVEL | IRQD_MOVE_PCNTXT);
 	if (irq_settings_has_no_balance_set(desc))
@@ -1035,7 +1027,11 @@ void irq_modify_status(unsigned int irq, unsigned long clr, unsigned long set)
 	if (irq_settings_is_level(desc))
 		irqd_set(&desc->irq_data, IRQD_LEVEL);
 
-	irqd_set(&desc->irq_data, irq_settings_get_trigger_mask(desc));
+	tmp = irq_settings_get_trigger_mask(desc);
+	if (tmp != IRQ_TYPE_NONE)
+		trigger = tmp;
+
+	irqd_set(&desc->irq_data, trigger);
 
 	irq_put_desc_unlock(desc, flags);
 }
diff --git a/kernel/irq/cpuhotplug.c b/kernel/irq/cpuhotplug.c
index aee8f7ec40af..638eb9c83d9f 100644
--- a/kernel/irq/cpuhotplug.c
+++ b/kernel/irq/cpuhotplug.c
@@ -95,8 +95,13 @@ static bool migrate_one_irq(struct irq_desc *desc)
 		affinity = cpu_online_mask;
 		brokeaff = true;
 	}
-
-	err = irq_do_set_affinity(d, affinity, true);
+	/*
+	 * Do not set the force argument of irq_do_set_affinity() as this
+	 * disables the masking of offline CPUs from the supplied affinity
+	 * mask and therefore might keep/reassign the irq to the outgoing
+	 * CPU.
+	 */
+	err = irq_do_set_affinity(d, affinity, false);
 	if (err) {
 		pr_warn_ratelimited("IRQ%u: set affinity failed(%d).\n",
 				    d->irq, err);
diff --git a/kernel/irq/internals.h b/kernel/irq/internals.h
index dbfba9933ed2..a2c48058354c 100644
--- a/kernel/irq/internals.h
+++ b/kernel/irq/internals.h
@@ -227,6 +227,16 @@ static inline bool irqd_has_set(struct irq_data *d, unsigned int mask)
 	return __irqd_to_state(d) & mask;
 }
 
+static inline void irq_state_set_disabled(struct irq_desc *desc)
+{
+	irqd_set(&desc->irq_data, IRQD_IRQ_DISABLED);
+}
+
+static inline void irq_state_set_masked(struct irq_desc *desc)
+{
+	irqd_set(&desc->irq_data, IRQD_IRQ_MASKED);
+}
+
 #undef __irqd_to_state
 
 static inline void kstat_incr_irqs_this_cpu(struct irq_desc *desc)
diff --git a/kernel/irq/ipi.c b/kernel/irq/ipi.c
index 1a9abc1c8ea0..259a22aa9934 100644
--- a/kernel/irq/ipi.c
+++ b/kernel/irq/ipi.c
@@ -165,7 +165,7 @@ irq_hw_number_t ipi_get_hwirq(unsigned int irq, unsigned int cpu)
 	struct irq_data *data = irq_get_irq_data(irq);
 	struct cpumask *ipimask = data ? irq_data_get_affinity_mask(data) : NULL;
 
-	if (!data || !ipimask || cpu > nr_cpu_ids)
+	if (!data || !ipimask || cpu >= nr_cpu_ids)
 		return INVALID_HWIRQ;
 
 	if (!cpumask_test_cpu(cpu, ipimask))
@@ -195,7 +195,7 @@ static int ipi_send_verify(struct irq_chip *chip, struct irq_data *data,
 	if (!chip->ipi_send_single && !chip->ipi_send_mask)
 		return -EINVAL;
 
-	if (cpu > nr_cpu_ids)
+	if (cpu >= nr_cpu_ids)
 		return -EINVAL;
 
 	if (dest) {
diff --git a/kernel/irq/manage.c b/kernel/irq/manage.c
index 5624b2dd6b58..1d1a5b945ab4 100644
--- a/kernel/irq/manage.c
+++ b/kernel/irq/manage.c
@@ -1090,6 +1090,16 @@ setup_irq_thread(struct irqaction *new, unsigned int irq, bool secondary)
 /*
  * Internal function to register an irqaction - typically used to
  * allocate special interrupts that are part of the architecture.
+ *
+ * Locking rules:
+ *
+ * desc->request_mutex	Provides serialization against a concurrent free_irq()
+ *   chip_bus_lock	Provides serialization for slow bus operations
+ *     desc->lock	Provides serialization against hard interrupts
+ *
+ * chip_bus_lock and desc->lock are sufficient for all other management and
+ * interrupt related functions. desc->request_mutex solely serializes
+ * request/free_irq().
  */
 static int
 __setup_irq(unsigned int irq, struct irq_desc *desc, struct irqaction *new)
@@ -1167,20 +1177,35 @@ __setup_irq(unsigned int irq, struct irq_desc *desc, struct irqaction *new)
 	if (desc->irq_data.chip->flags & IRQCHIP_ONESHOT_SAFE)
 		new->flags &= ~IRQF_ONESHOT;
 
+	/*
+	 * Protects against a concurrent __free_irq() call which might wait
+	 * for synchronize_irq() to complete without holding the optional
+	 * chip bus lock and desc->lock.
+	 */
 	mutex_lock(&desc->request_mutex);
+
+	/*
+	 * Acquire bus lock as the irq_request_resources() callback below
+	 * might rely on the serialization or the magic power management
+	 * functions which are abusing the irq_bus_lock() callback,
+	 */
+	chip_bus_lock(desc);
+
+	/* First installed action requests resources. */
 	if (!desc->action) {
 		ret = irq_request_resources(desc);
 		if (ret) {
 			pr_err("Failed to request resources for %s (irq %d) on irqchip %s\n",
 			       new->name, irq, desc->irq_data.chip->name);
-			goto out_mutex;
+			goto out_bus_unlock;
 		}
 	}
 
-	chip_bus_lock(desc);
-
 	/*
 	 * The following block of code has to be executed atomically
+	 * protected against a concurrent interrupt and any of the other
+	 * management calls which are not serialized via
+	 * desc->request_mutex or the optional bus lock.
 	 */
 	raw_spin_lock_irqsave(&desc->lock, flags);
 	old_ptr = &desc->action;
@@ -1286,10 +1311,8 @@ __setup_irq(unsigned int irq, struct irq_desc *desc, struct irqaction *new)
 			ret = __irq_set_trigger(desc,
 						new->flags & IRQF_TRIGGER_MASK);
 
-			if (ret) {
-				irq_release_resources(desc);
+			if (ret)
 				goto out_unlock;
-			}
 		}
 
 		desc->istate &= ~(IRQS_AUTODETECT | IRQS_SPURIOUS_DISABLED | \
@@ -1385,12 +1408,10 @@ mismatch:
 out_unlock:
 	raw_spin_unlock_irqrestore(&desc->lock, flags);
 
-	chip_bus_sync_unlock(desc);
-
 	if (!desc->action)
 		irq_release_resources(desc);
-
-out_mutex:
+out_bus_unlock:
+	chip_bus_sync_unlock(desc);
 	mutex_unlock(&desc->request_mutex);
 
 out_thread:
@@ -1472,6 +1493,7 @@ static struct irqaction *__free_irq(unsigned int irq, void *dev_id)
 			WARN(1, "Trying to free already-free IRQ %d\n", irq);
 			raw_spin_unlock_irqrestore(&desc->lock, flags);
 			chip_bus_sync_unlock(desc);
+			mutex_unlock(&desc->request_mutex);
 			return NULL;
 		}
 
@@ -1498,6 +1520,20 @@ static struct irqaction *__free_irq(unsigned int irq, void *dev_id)
 #endif
 
 	raw_spin_unlock_irqrestore(&desc->lock, flags);
+	/*
+	 * Drop bus_lock here so the changes which were done in the chip
+	 * callbacks above are synced out to the irq chips which hang
+	 * behind a slow bus (I2C, SPI) before calling synchronize_irq().
+	 *
+	 * Aside of that the bus_lock can also be taken from the threaded
+	 * handler in irq_finalize_oneshot() which results in a deadlock
+	 * because synchronize_irq() would wait forever for the thread to
+	 * complete, which is blocked on the bus lock.
+	 *
+	 * The still held desc->request_mutex() protects against a
+	 * concurrent request_irq() of this irq so the release of resources
+	 * and timing data is properly serialized.
+	 */
 	chip_bus_sync_unlock(desc);
 
 	unregister_handler_proc(irq, action);
@@ -1530,8 +1566,15 @@ static struct irqaction *__free_irq(unsigned int irq, void *dev_id)
 		}
 	}
 
+	/* Last action releases resources */
 	if (!desc->action) {
+		/*
+		 * Reaquire bus lock as irq_release_resources() might
+		 * require it to deallocate resources over the slow bus.
+		 */
+		chip_bus_lock(desc);
 		irq_release_resources(desc);
+		chip_bus_sync_unlock(desc);
 		irq_remove_timings(desc);
 	}
 
diff --git a/kernel/irq/pm.c b/kernel/irq/pm.c
index cea1de0161f1..6bd9b58429cc 100644
--- a/kernel/irq/pm.c
+++ b/kernel/irq/pm.c
@@ -149,6 +149,8 @@ static void resume_irq(struct irq_desc *desc)
 
 	/* Pretend that it got disabled ! */
 	desc->depth++;
+	irq_state_set_disabled(desc);
+	irq_state_set_masked(desc);
 resume:
 	desc->istate &= ~IRQS_SUSPENDED;
 	__enable_irq(desc);
diff --git a/kernel/kcmp.c b/kernel/kcmp.c
index 3a47fa998fe0..ea34ed8bb952 100644
--- a/kernel/kcmp.c
+++ b/kernel/kcmp.c
@@ -11,6 +11,10 @@
 #include <linux/bug.h>
 #include <linux/err.h>
 #include <linux/kcmp.h>
+#include <linux/capability.h>
+#include <linux/list.h>
+#include <linux/eventpoll.h>
+#include <linux/file.h>
 
 #include <asm/unistd.h>
 
@@ -94,6 +98,56 @@ static int kcmp_lock(struct mutex *m1, struct mutex *m2)
 	return err;
 }
 
+#ifdef CONFIG_EPOLL
+static int kcmp_epoll_target(struct task_struct *task1,
+			     struct task_struct *task2,
+			     unsigned long idx1,
+			     struct kcmp_epoll_slot __user *uslot)
+{
+	struct file *filp, *filp_epoll, *filp_tgt;
+	struct kcmp_epoll_slot slot;
+	struct files_struct *files;
+
+	if (copy_from_user(&slot, uslot, sizeof(slot)))
+		return -EFAULT;
+
+	filp = get_file_raw_ptr(task1, idx1);
+	if (!filp)
+		return -EBADF;
+
+	files = get_files_struct(task2);
+	if (!files)
+		return -EBADF;
+
+	spin_lock(&files->file_lock);
+	filp_epoll = fcheck_files(files, slot.efd);
+	if (filp_epoll)
+		get_file(filp_epoll);
+	else
+		filp_tgt = ERR_PTR(-EBADF);
+	spin_unlock(&files->file_lock);
+	put_files_struct(files);
+
+	if (filp_epoll) {
+		filp_tgt = get_epoll_tfile_raw_ptr(filp_epoll, slot.tfd, slot.toff);
+		fput(filp_epoll);
+	} else
+
+	if (IS_ERR(filp_tgt))
+		return PTR_ERR(filp_tgt);
+
+	return kcmp_ptr(filp, filp_tgt, KCMP_FILE);
+}
+#else
+static int kcmp_epoll_target(struct task_struct *task1,
+			     struct task_struct *task2,
+			     unsigned long idx1,
+			     struct kcmp_epoll_slot __user *uslot)
+{
+	return -EOPNOTSUPP;
+}
+#endif
+
 SYSCALL_DEFINE5(kcmp, pid_t, pid1, pid_t, pid2, int, type,
 		unsigned long, idx1, unsigned long, idx2)
 {
@@ -165,6 +219,9 @@ SYSCALL_DEFINE5(kcmp, pid_t, pid1, pid_t, pid2, int, type,
 		ret = -EOPNOTSUPP;
 #endif
 		break;
+	case KCMP_EPOLL_TFD:
+		ret = kcmp_epoll_target(task1, task2, idx1, (void *)idx2);
+		break;
 	default:
 		ret = -EINVAL;
 		break;
diff --git a/kernel/kexec.c b/kernel/kexec.c
index 980936a90ee6..e62ec4dc6620 100644
--- a/kernel/kexec.c
+++ b/kernel/kexec.c
@@ -144,6 +144,14 @@ static int do_kexec_load(unsigned long entry, unsigned long nr_segments,
 	if (ret)
 		goto out;
 
+	/*
+	 * Some architecture(like S390) may touch the crash memory before
+	 * machine_kexec_prepare(), we must copy vmcoreinfo data after it.
+	 */
+	ret = kimage_crash_copy_vmcoreinfo(image);
+	if (ret)
+		goto out;
+
 	for (i = 0; i < nr_segments; i++) {
 		ret = kimage_load_segment(image, &image->segment[i]);
 		if (ret)
diff --git a/kernel/kexec_core.c b/kernel/kexec_core.c
index 154ffb489b93..1ae7c41c33c1 100644
--- a/kernel/kexec_core.c
+++ b/kernel/kexec_core.c
@@ -482,6 +482,40 @@ struct page *kimage_alloc_control_pages(struct kimage *image,
 	return pages;
 }
 
+int kimage_crash_copy_vmcoreinfo(struct kimage *image)
+{
+	struct page *vmcoreinfo_page;
+	void *safecopy;
+
+	if (image->type != KEXEC_TYPE_CRASH)
+		return 0;
+
+	/*
+	 * For kdump, allocate one vmcoreinfo safe copy from the
+	 * crash memory. as we have arch_kexec_protect_crashkres()
+	 * after kexec syscall, we naturally protect it from write
+	 * (even read) access under kernel direct mapping. But on
+	 * the other hand, we still need to operate it when crash
+	 * happens to generate vmcoreinfo note, hereby we rely on
+	 * vmap for this purpose.
+	 */
+	vmcoreinfo_page = kimage_alloc_control_pages(image, 0);
+	if (!vmcoreinfo_page) {
+		pr_warn("Could not allocate vmcoreinfo buffer\n");
+		return -ENOMEM;
+	}
+	safecopy = vmap(&vmcoreinfo_page, 1, VM_MAP, PAGE_KERNEL);
+	if (!safecopy) {
+		pr_warn("Could not vmap vmcoreinfo buffer\n");
+		return -ENOMEM;
+	}
+
+	image->vmcoreinfo_data_copy = safecopy;
+	crash_update_vmcoreinfo_safecopy(safecopy);
+
+	return 0;
+}
+
 static int kimage_add_entry(struct kimage *image, kimage_entry_t entry)
 {
 	if (*image->entry != 0)
@@ -569,6 +603,11 @@ void kimage_free(struct kimage *image)
 	if (!image)
 		return;
 
+	if (image->vmcoreinfo_data_copy) {
+		crash_update_vmcoreinfo_safecopy(NULL);
+		vunmap(image->vmcoreinfo_data_copy);
+	}
+
 	kimage_free_extra_pages(image);
 	for_each_kimage_entry(image, ptr, entry) {
 		if (entry & IND_INDIRECTION) {
diff --git a/kernel/kexec_file.c b/kernel/kexec_file.c
index 766e7e4d3ad9..9f48f4412297 100644
--- a/kernel/kexec_file.c
+++ b/kernel/kexec_file.c
@@ -26,13 +26,6 @@
 #include <linux/vmalloc.h>
 #include "kexec_internal.h"
 
-/*
- * Declare these symbols weak so that if architecture provides a purgatory,
- * these will be overridden.
- */
-char __weak kexec_purgatory[0];
-size_t __weak kexec_purgatory_size = 0;
-
 static int kexec_calculate_store_digests(struct kimage *image);
 
 /* Architectures can provide this probe function */
@@ -298,6 +291,14 @@ SYSCALL_DEFINE5(kexec_file_load, int, kernel_fd, int, initrd_fd,
 	if (ret)
 		goto out;
 
+	/*
+	 * Some architecture(like S390) may touch the crash memory before
+	 * machine_kexec_prepare(), we must copy vmcoreinfo data after it.
+	 */
+	ret = kimage_crash_copy_vmcoreinfo(image);
+	if (ret)
+		goto out;
+
 	ret = kexec_calculate_store_digests(image);
 	if (ret)
 		goto out;
diff --git a/kernel/kexec_internal.h b/kernel/kexec_internal.h
index 799a8a452187..50dfcb039a41 100644
--- a/kernel/kexec_internal.h
+++ b/kernel/kexec_internal.h
@@ -17,6 +17,8 @@ extern struct mutex kexec_mutex;
 #ifdef CONFIG_KEXEC_FILE
 #include <linux/purgatory.h>
 void kimage_file_post_load_cleanup(struct kimage *image);
+extern char kexec_purgatory[];
+extern size_t kexec_purgatory_size;
 #else /* CONFIG_KEXEC_FILE */
 static inline void kimage_file_post_load_cleanup(struct kimage *image) { }
 #endif /* CONFIG_KEXEC_FILE */
diff --git a/kernel/kmod.c b/kernel/kmod.c
index 563f97e2be36..2f37acde640b 100644
--- a/kernel/kmod.c
+++ b/kernel/kmod.c
@@ -45,8 +45,6 @@
 
 #include <trace/events/module.h>
 
-extern int max_threads;
-
 #define CAP_BSET	(void *)1
 #define CAP_PI		(void *)2
 
@@ -56,6 +54,33 @@ static DEFINE_SPINLOCK(umh_sysctl_lock);
 static DECLARE_RWSEM(umhelper_sem);
 
 #ifdef CONFIG_MODULES
+/*
+ * Assuming:
+ *
+ * threads = div64_u64((u64) totalram_pages * (u64) PAGE_SIZE,
+ *		       (u64) THREAD_SIZE * 8UL);
+ *
+ * If you need less than 50 threads would mean we're dealing with systems
+ * smaller than 3200 pages. This assuems you are capable of having ~13M memory,
+ * and this would only be an be an upper limit, after which the OOM killer
+ * would take effect. Systems like these are very unlikely if modules are
+ * enabled.
+ */
+#define MAX_KMOD_CONCURRENT 50
+static atomic_t kmod_concurrent_max = ATOMIC_INIT(MAX_KMOD_CONCURRENT);
+static DECLARE_WAIT_QUEUE_HEAD(kmod_wq);
+
+/*
+ * This is a restriction on having *all* MAX_KMOD_CONCURRENT threads
+ * running at the same time without returning. When this happens we
+ * believe you've somehow ended up with a recursive module dependency
+ * creating a loop.
+ *
+ * We have no option but to fail.
+ *
+ * Userspace should proactively try to detect and prevent these.
+ */
+#define MAX_KMOD_ALL_BUSY_TIMEOUT 5
 
 /*
 	modprobe_path is set via /proc/sys.
@@ -127,11 +152,7 @@ int __request_module(bool wait, const char *fmt, ...)
 {
 	va_list args;
 	char module_name[MODULE_NAME_LEN];
-	unsigned int max_modprobes;
 	int ret;
-	static atomic_t kmod_concurrent = ATOMIC_INIT(0);
-#define MAX_KMOD_CONCURRENT 50	/* Completely arbitrary value - KAO */
-	static int kmod_loop_msg;
 
 	/*
 	 * We don't allow synchronous module loading from async.  Module
@@ -154,40 +175,34 @@ int __request_module(bool wait, const char *fmt, ...)
 	if (ret)
 		return ret;
 
-	/* If modprobe needs a service that is in a module, we get a recursive
-	 * loop.  Limit the number of running kmod threads to max_threads/2 or
-	 * MAX_KMOD_CONCURRENT, whichever is the smaller.  A cleaner method
-	 * would be to run the parents of this process, counting how many times
-	 * kmod was invoked.  That would mean accessing the internals of the
-	 * process tables to get the command line, proc_pid_cmdline is static
-	 * and it is not worth changing the proc code just to handle this case. 
-	 * KAO.
-	 *
-	 * "trace the ppid" is simple, but will fail if someone's
-	 * parent exits.  I think this is as good as it gets. --RR
-	 */
-	max_modprobes = min(max_threads/2, MAX_KMOD_CONCURRENT);
-	atomic_inc(&kmod_concurrent);
-	if (atomic_read(&kmod_concurrent) > max_modprobes) {
-		/* We may be blaming an innocent here, but unlikely */
-		if (kmod_loop_msg < 5) {
-			printk(KERN_ERR
-			       "request_module: runaway loop modprobe %s\n",
-			       module_name);
-			kmod_loop_msg++;
+	if (atomic_dec_if_positive(&kmod_concurrent_max) < 0) {
+		pr_warn_ratelimited("request_module: kmod_concurrent_max (%u) close to 0 (max_modprobes: %u), for module %s, throttling...",
+				    atomic_read(&kmod_concurrent_max),
+				    MAX_KMOD_CONCURRENT, module_name);
+		ret = wait_event_killable_timeout(kmod_wq,
+						  atomic_dec_if_positive(&kmod_concurrent_max) >= 0,
+						  MAX_KMOD_ALL_BUSY_TIMEOUT * HZ);
+		if (!ret) {
+			pr_warn_ratelimited("request_module: modprobe %s cannot be processed, kmod busy with %d threads for more than %d seconds now",
+					    module_name, MAX_KMOD_CONCURRENT, MAX_KMOD_ALL_BUSY_TIMEOUT);
+			return -ETIME;
+		} else if (ret == -ERESTARTSYS) {
+			pr_warn_ratelimited("request_module: sigkill sent for modprobe %s, giving up", module_name);
+			return ret;
 		}
-		atomic_dec(&kmod_concurrent);
-		return -ENOMEM;
 	}
 
 	trace_module_request(module_name, wait, _RET_IP_);
 
 	ret = call_modprobe(module_name, wait ? UMH_WAIT_PROC : UMH_WAIT_EXEC);
 
-	atomic_dec(&kmod_concurrent);
+	atomic_inc(&kmod_concurrent_max);
+	wake_up(&kmod_wq);
+
 	return ret;
 }
 EXPORT_SYMBOL(__request_module);
+
 #endif /* CONFIG_MODULES */
 
 static void call_usermodehelper_freeinfo(struct subprocess_info *info)
diff --git a/kernel/ksysfs.c b/kernel/ksysfs.c
index df1a9aa602a0..46ba853656f6 100644
--- a/kernel/ksysfs.c
+++ b/kernel/ksysfs.c
@@ -134,7 +134,7 @@ static ssize_t vmcoreinfo_show(struct kobject *kobj,
 {
 	phys_addr_t vmcore_base = paddr_vmcoreinfo_note();
 	return sprintf(buf, "%pa %x\n", &vmcore_base,
-		       (unsigned int)sizeof(vmcoreinfo_note));
+			(unsigned int)VMCOREINFO_NOTE_SIZE);
 }
 KERNEL_ATTR_RO(vmcoreinfo);
 
diff --git a/kernel/locking/rtmutex.c b/kernel/locking/rtmutex.c
index 78069895032a..649dc9d3951a 100644
--- a/kernel/locking/rtmutex.c
+++ b/kernel/locking/rtmutex.c
@@ -963,7 +963,6 @@ static int task_blocks_on_rt_mutex(struct rt_mutex *lock,
 		return -EDEADLK;
 
 	raw_spin_lock(&task->pi_lock);
-	rt_mutex_adjust_prio(task);
 	waiter->task = task;
 	waiter->lock = lock;
 	waiter->prio = task->prio;
diff --git a/kernel/module.c b/kernel/module.c
index b0f92a365140..40f983cbea81 100644
--- a/kernel/module.c
+++ b/kernel/module.c
@@ -300,6 +300,7 @@ int unregister_module_notifier(struct notifier_block *nb)
 EXPORT_SYMBOL(unregister_module_notifier);
 
 struct load_info {
+	const char *name;
 	Elf_Ehdr *hdr;
 	unsigned long len;
 	Elf_Shdr *sechdrs;
@@ -600,7 +601,7 @@ static struct module *find_module_all(const char *name, size_t len,
 
 	module_assert_mutex_or_preempt();
 
-	list_for_each_entry(mod, &modules, list) {
+	list_for_each_entry_rcu(mod, &modules, list) {
 		if (!even_unformed && mod->state == MODULE_STATE_UNFORMED)
 			continue;
 		if (strlen(mod->name) == len && !memcmp(mod->name, name, len))
@@ -1273,12 +1274,13 @@ static u32 resolve_rel_crc(const s32 *crc)
 	return *(u32 *)((void *)crc + *crc);
 }
 
-static int check_version(Elf_Shdr *sechdrs,
-			 unsigned int versindex,
+static int check_version(const struct load_info *info,
 			 const char *symname,
 			 struct module *mod,
 			 const s32 *crc)
 {
+	Elf_Shdr *sechdrs = info->sechdrs;
+	unsigned int versindex = info->index.vers;
 	unsigned int i, num_versions;
 	struct modversion_info *versions;
 
@@ -1312,17 +1314,16 @@ static int check_version(Elf_Shdr *sechdrs,
 	}
 
 	/* Broken toolchain. Warn once, then let it go.. */
-	pr_warn_once("%s: no symbol version for %s\n", mod->name, symname);
+	pr_warn_once("%s: no symbol version for %s\n", info->name, symname);
 	return 1;
 
 bad_version:
 	pr_warn("%s: disagrees about version of symbol %s\n",
-	       mod->name, symname);
+	       info->name, symname);
 	return 0;
 }
 
-static inline int check_modstruct_version(Elf_Shdr *sechdrs,
-					  unsigned int versindex,
+static inline int check_modstruct_version(const struct load_info *info,
 					  struct module *mod)
 {
 	const s32 *crc;
@@ -1338,8 +1339,8 @@ static inline int check_modstruct_version(Elf_Shdr *sechdrs,
 		BUG();
 	}
 	preempt_enable();
-	return check_version(sechdrs, versindex,
-			     VMLINUX_SYMBOL_STR(module_layout), mod, crc);
+	return check_version(info, VMLINUX_SYMBOL_STR(module_layout),
+			     mod, crc);
 }
 
 /* First part is kernel version, which we ignore if module has crcs. */
@@ -1353,8 +1354,7 @@ static inline int same_magic(const char *amagic, const char *bmagic,
 	return strcmp(amagic, bmagic) == 0;
 }
 #else
-static inline int check_version(Elf_Shdr *sechdrs,
-				unsigned int versindex,
+static inline int check_version(const struct load_info *info,
 				const char *symname,
 				struct module *mod,
 				const s32 *crc)
@@ -1362,8 +1362,7 @@ static inline int check_version(Elf_Shdr *sechdrs,
 	return 1;
 }
 
-static inline int check_modstruct_version(Elf_Shdr *sechdrs,
-					  unsigned int versindex,
+static inline int check_modstruct_version(const struct load_info *info,
 					  struct module *mod)
 {
 	return 1;
@@ -1399,7 +1398,7 @@ static const struct kernel_symbol *resolve_symbol(struct module *mod,
 	if (!sym)
 		goto unlock;
 
-	if (!check_version(info->sechdrs, info->index.vers, name, mod, crc)) {
+	if (!check_version(info, name, mod, crc)) {
 		sym = ERR_PTR(-EINVAL);
 		goto getname;
 	}
@@ -1662,31 +1661,36 @@ static inline void remove_notes_attrs(struct module *mod)
 }
 #endif /* CONFIG_KALLSYMS */
 
-static void add_usage_links(struct module *mod)
+static void del_usage_links(struct module *mod)
 {
 #ifdef CONFIG_MODULE_UNLOAD
 	struct module_use *use;
-	int nowarn;
 
 	mutex_lock(&module_mutex);
-	list_for_each_entry(use, &mod->target_list, target_list) {
-		nowarn = sysfs_create_link(use->target->holders_dir,
-					   &mod->mkobj.kobj, mod->name);
-	}
+	list_for_each_entry(use, &mod->target_list, target_list)
+		sysfs_remove_link(use->target->holders_dir, mod->name);
 	mutex_unlock(&module_mutex);
 #endif
 }
 
-static void del_usage_links(struct module *mod)
+static int add_usage_links(struct module *mod)
 {
+	int ret = 0;
 #ifdef CONFIG_MODULE_UNLOAD
 	struct module_use *use;
 
 	mutex_lock(&module_mutex);
-	list_for_each_entry(use, &mod->target_list, target_list)
-		sysfs_remove_link(use->target->holders_dir, mod->name);
+	list_for_each_entry(use, &mod->target_list, target_list) {
+		ret = sysfs_create_link(use->target->holders_dir,
+					&mod->mkobj.kobj, mod->name);
+		if (ret)
+			break;
+	}
 	mutex_unlock(&module_mutex);
+	if (ret)
+		del_usage_links(mod);
 #endif
+	return ret;
 }
 
 static int module_add_modinfo_attrs(struct module *mod)
@@ -1797,13 +1801,18 @@ static int mod_sysfs_setup(struct module *mod,
 	if (err)
 		goto out_unreg_param;
 
-	add_usage_links(mod);
+	err = add_usage_links(mod);
+	if (err)
+		goto out_unreg_modinfo_attrs;
+
 	add_sect_attrs(mod, info);
 	add_notes_attrs(mod, info);
 
 	kobject_uevent(&mod->mkobj.kobj, KOBJ_ADD);
 	return 0;
 
+out_unreg_modinfo_attrs:
+	module_remove_modinfo_attrs(mod);
 out_unreg_param:
 	module_param_sysfs_remove(mod);
 out_unreg_holders:
@@ -2910,9 +2919,15 @@ static int rewrite_section_headers(struct load_info *info, int flags)
 		info->index.vers = 0; /* Pretend no __versions section! */
 	else
 		info->index.vers = find_sec(info, "__versions");
+	info->sechdrs[info->index.vers].sh_flags &= ~(unsigned long)SHF_ALLOC;
+
 	info->index.info = find_sec(info, ".modinfo");
+	if (!info->index.info)
+		info->name = "(missing .modinfo section)";
+	else
+		info->name = get_modinfo(info, "name");
 	info->sechdrs[info->index.info].sh_flags &= ~(unsigned long)SHF_ALLOC;
-	info->sechdrs[info->index.vers].sh_flags &= ~(unsigned long)SHF_ALLOC;
+
 	return 0;
 }
 
@@ -2952,21 +2967,29 @@ static struct module *setup_load_info(struct load_info *info, int flags)
 
 	info->index.mod = find_sec(info, ".gnu.linkonce.this_module");
 	if (!info->index.mod) {
-		pr_warn("No module found in object\n");
+		pr_warn("%s: No module found in object\n",
+			info->name ?: "(missing .modinfo name field)");
 		return ERR_PTR(-ENOEXEC);
 	}
 	/* This is temporary: point mod into copy of data. */
 	mod = (void *)info->sechdrs[info->index.mod].sh_addr;
 
+	/*
+	 * If we didn't load the .modinfo 'name' field, fall back to
+	 * on-disk struct mod 'name' field.
+	 */
+	if (!info->name)
+		info->name = mod->name;
+
 	if (info->index.sym == 0) {
-		pr_warn("%s: module has no symbols (stripped?)\n", mod->name);
+		pr_warn("%s: module has no symbols (stripped?)\n", info->name);
 		return ERR_PTR(-ENOEXEC);
 	}
 
 	info->index.pcpu = find_pcpusec(info);
 
 	/* Check module struct version now, before we try to use module. */
-	if (!check_modstruct_version(info->sechdrs, info->index.vers, mod))
+	if (!check_modstruct_version(info, mod))
 		return ERR_PTR(-ENOEXEC);
 
 	return mod;
@@ -2987,7 +3010,7 @@ static int check_modinfo(struct module *mod, struct load_info *info, int flags)
 			return err;
 	} else if (!same_magic(modmagic, vermagic, info->index.vers)) {
 		pr_err("%s: version magic '%s' should be '%s'\n",
-		       mod->name, modmagic, vermagic);
+		       info->name, modmagic, vermagic);
 		return -ENOEXEC;
 	}
 
@@ -3237,7 +3260,7 @@ int __weak module_frob_arch_sections(Elf_Ehdr *hdr,
 
 /* module_blacklist is a comma-separated list of module names */
 static char *module_blacklist;
-static bool blacklisted(char *module_name)
+static bool blacklisted(const char *module_name)
 {
 	const char *p;
 	size_t len;
@@ -3267,7 +3290,7 @@ static struct module *layout_and_allocate(struct load_info *info, int flags)
 	if (IS_ERR(mod))
 		return mod;
 
-	if (blacklisted(mod->name))
+	if (blacklisted(info->name))
 		return ERR_PTR(-EPERM);
 
 	err = check_modinfo(mod, info, flags);
diff --git a/kernel/pid.c b/kernel/pid.c
index 731c4e528f4e..020dedbdf066 100644
--- a/kernel/pid.c
+++ b/kernel/pid.c
@@ -527,8 +527,11 @@ pid_t __task_pid_nr_ns(struct task_struct *task, enum pid_type type,
 	if (!ns)
 		ns = task_active_pid_ns(current);
 	if (likely(pid_alive(task))) {
-		if (type != PIDTYPE_PID)
+		if (type != PIDTYPE_PID) {
+			if (type == __PIDTYPE_TGID)
+				type = PIDTYPE_PID;
 			task = task->group_leader;
+		}
 		nr = pid_nr_ns(rcu_dereference(task->pids[type].pid), ns);
 	}
 	rcu_read_unlock();
@@ -537,12 +540,6 @@ pid_t __task_pid_nr_ns(struct task_struct *task, enum pid_type type,
 }
 EXPORT_SYMBOL(__task_pid_nr_ns);
 
-pid_t task_tgid_nr_ns(struct task_struct *tsk, struct pid_namespace *ns)
-{
-	return pid_nr_ns(task_tgid(tsk), ns);
-}
-EXPORT_SYMBOL(task_tgid_nr_ns);
-
 struct pid_namespace *task_active_pid_ns(struct task_struct *tsk)
 {
 	return ns_of_pid(task_pid(tsk));
@@ -575,13 +572,10 @@ struct pid *find_ge_pid(int nr, struct pid_namespace *ns)
  */
 void __init pidhash_init(void)
 {
-	unsigned int pidhash_size;
-
 	pid_hash = alloc_large_system_hash("PID", sizeof(*pid_hash), 0, 18,
 					   HASH_EARLY | HASH_SMALL | HASH_ZERO,
 					   &pidhash_shift, NULL,
 					   0, 4096);
-	pidhash_size = 1U << pidhash_shift;
 }
 
 void __init pidmap_init(void)
diff --git a/kernel/power/snapshot.c b/kernel/power/snapshot.c
index 222317721c5a..0972a8e09d08 100644
--- a/kernel/power/snapshot.c
+++ b/kernel/power/snapshot.c
@@ -1650,7 +1650,7 @@ static unsigned long minimum_image_size(unsigned long saveable)
 {
 	unsigned long size;
 
-	size = global_page_state(NR_SLAB_RECLAIMABLE)
+	size = global_node_page_state(NR_SLAB_RECLAIMABLE)
 		+ global_node_page_state(NR_ACTIVE_ANON)
 		+ global_node_page_state(NR_INACTIVE_ANON)
 		+ global_node_page_state(NR_ACTIVE_FILE)
diff --git a/kernel/sched/core.c b/kernel/sched/core.c
index 17c667b427b4..0869b20fba81 100644
--- a/kernel/sched/core.c
+++ b/kernel/sched/core.c
@@ -2069,7 +2069,7 @@ out:
 /**
  * try_to_wake_up_local - try to wake up a local task with rq lock held
  * @p: the thread to be awakened
- * @cookie: context's cookie for pinning
+ * @rf: request-queue flags for pinning
  *
  * Put @p on the run-queue if it's not already there. The caller must
  * ensure that this_rq() is locked, @p is bound to this_rq() and not
diff --git a/kernel/sched/cpufreq_schedutil.c b/kernel/sched/cpufreq_schedutil.c
index 076a2e31951c..29a397067ffa 100644
--- a/kernel/sched/cpufreq_schedutil.c
+++ b/kernel/sched/cpufreq_schedutil.c
@@ -610,6 +610,11 @@ static int sugov_start(struct cpufreq_policy *policy)
 		sg_cpu->sg_policy = sg_policy;
 		sg_cpu->flags = SCHED_CPUFREQ_RT;
 		sg_cpu->iowait_boost_max = policy->cpuinfo.max_freq;
+	}
+
+	for_each_cpu(cpu, policy->cpus) {
+		struct sugov_cpu *sg_cpu = &per_cpu(sugov_cpu, cpu);
+
 		cpufreq_add_update_util_hook(cpu, &sg_cpu->update_util,
 					     policy_is_shared(policy) ?
 							sugov_update_shared :
diff --git a/kernel/sched/cputime.c b/kernel/sched/cputime.c
index 6e3ea4ac1bda..14d2dbf97c53 100644
--- a/kernel/sched/cputime.c
+++ b/kernel/sched/cputime.c
@@ -683,7 +683,7 @@ static u64 vtime_delta(struct vtime *vtime)
 {
 	unsigned long long clock;
 
-	clock = sched_clock_cpu(smp_processor_id());
+	clock = sched_clock();
 	if (clock < vtime->starttime)
 		return 0;
 
@@ -814,7 +814,7 @@ void arch_vtime_task_switch(struct task_struct *prev)
 
 	write_seqcount_begin(&vtime->seqcount);
 	vtime->state = VTIME_SYS;
-	vtime->starttime = sched_clock_cpu(smp_processor_id());
+	vtime->starttime = sched_clock();
 	write_seqcount_end(&vtime->seqcount);
 }
 
@@ -826,7 +826,7 @@ void vtime_init_idle(struct task_struct *t, int cpu)
 	local_irq_save(flags);
 	write_seqcount_begin(&vtime->seqcount);
 	vtime->state = VTIME_SYS;
-	vtime->starttime = sched_clock_cpu(cpu);
+	vtime->starttime = sched_clock();
 	write_seqcount_end(&vtime->seqcount);
 	local_irq_restore(flags);
 }
diff --git a/kernel/sched/deadline.c b/kernel/sched/deadline.c
index a84299f44b5d..755bd3f1a1a9 100644
--- a/kernel/sched/deadline.c
+++ b/kernel/sched/deadline.c
@@ -1392,17 +1392,19 @@ static void enqueue_task_dl(struct rq *rq, struct task_struct *p, int flags)
 	struct sched_dl_entity *pi_se = &p->dl;
 
 	/*
-	 * Use the scheduling parameters of the top pi-waiter
-	 * task if we have one and its (absolute) deadline is
-	 * smaller than our one... OTW we keep our runtime and
-	 * deadline.
+	 * Use the scheduling parameters of the top pi-waiter task if:
+	 * - we have a top pi-waiter which is a SCHED_DEADLINE task AND
+	 * - our dl_boosted is set (i.e. the pi-waiter's (absolute) deadline is
+	 *   smaller than our deadline OR we are a !SCHED_DEADLINE task getting
+	 *   boosted due to a SCHED_DEADLINE pi-waiter).
+	 * Otherwise we keep our runtime and deadline.
 	 */
-	if (pi_task && p->dl.dl_boosted && dl_prio(pi_task->normal_prio)) {
+	if (pi_task && dl_prio(pi_task->normal_prio) && p->dl.dl_boosted) {
 		pi_se = &pi_task->dl;
 	} else if (!dl_prio(p->normal_prio)) {
 		/*
 		 * Special case in which we have a !SCHED_DEADLINE task
-		 * that is going to be deboosted, but exceedes its
+		 * that is going to be deboosted, but exceeds its
 		 * runtime while doing so. No point in replenishing
 		 * it, as it's going to return back to its original
 		 * scheduling class after this.
diff --git a/kernel/signal.c b/kernel/signal.c
index caed9133ae52..ed804a470dcd 100644
--- a/kernel/signal.c
+++ b/kernel/signal.c
@@ -1194,7 +1194,11 @@ force_sig_info(int sig, struct siginfo *info, struct task_struct *t)
 			recalc_sigpending_and_wake(t);
 		}
 	}
-	if (action->sa.sa_handler == SIG_DFL)
+	/*
+	 * Don't clear SIGNAL_UNKILLABLE for traced tasks, users won't expect
+	 * debugging to leave init killable.
+	 */
+	if (action->sa.sa_handler == SIG_DFL && !t->ptrace)
 		t->signal->flags &= ~SIGNAL_UNKILLABLE;
 	ret = specific_send_sig_info(sig, info, t);
 	spin_unlock_irqrestore(&t->sighand->siglock, flags);
@@ -3303,12 +3307,15 @@ SYSCALL_DEFINE1(sigpending, old_sigset_t __user *, set)
 #ifdef CONFIG_COMPAT
 COMPAT_SYSCALL_DEFINE1(sigpending, compat_old_sigset_t __user *, set32)
 {
+#ifdef __BIG_ENDIAN
 	sigset_t set;
-	int err = do_sigpending(&set, sizeof(old_sigset_t)); 
-	if (err == 0)
-		if (copy_to_user(set32, &set, sizeof(old_sigset_t)))
-			err = -EFAULT;
+	int err = do_sigpending(&set, sizeof(set.sig[0]));
+	if (!err)
+		err = put_user(set.sig[0], set32);
 	return err;
+#else
+	return sys_rt_sigpending((sigset_t __user *)set32, sizeof(*set32));
+#endif
 }
 #endif
 
diff --git a/kernel/sys.c b/kernel/sys.c
index 73fc0af147d0..2855ee73acd0 100644
--- a/kernel/sys.c
+++ b/kernel/sys.c
@@ -1362,7 +1362,7 @@ COMPAT_SYSCALL_DEFINE2(getrlimit, unsigned int, resource,
 
 	ret = do_prlimit(current, resource, NULL, &r);
 	if (!ret) {
-		struct rlimit r32;
+		struct compat_rlimit r32;
 		if (r.rlim_cur > COMPAT_RLIM_INFINITY)
 			r32.rlim_cur = COMPAT_RLIM_INFINITY;
 		else
diff --git a/kernel/sysctl.c b/kernel/sysctl.c
index 4dfba1a76cc3..6648fbbb8157 100644
--- a/kernel/sysctl.c
+++ b/kernel/sysctl.c
@@ -174,11 +174,32 @@ extern int no_unaligned_warning;
 
 #ifdef CONFIG_PROC_SYSCTL
 
-#define SYSCTL_WRITES_LEGACY	-1
-#define SYSCTL_WRITES_WARN	 0
-#define SYSCTL_WRITES_STRICT	 1
+/**
+ * enum sysctl_writes_mode - supported sysctl write modes
+ *
+ * @SYSCTL_WRITES_LEGACY: each write syscall must fully contain the sysctl value
+ * 	to be written, and multiple writes on the same sysctl file descriptor
+ * 	will rewrite the sysctl value, regardless of file position. No warning
+ * 	is issued when the initial position is not 0.
+ * @SYSCTL_WRITES_WARN: same as above but warn when the initial file position is
+ * 	not 0.
+ * @SYSCTL_WRITES_STRICT: writes to numeric sysctl entries must always be at
+ * 	file position 0 and the value must be fully contained in the buffer
+ * 	sent to the write syscall. If dealing with strings respect the file
+ * 	position, but restrict this to the max length of the buffer, anything
+ * 	passed the max lenght will be ignored. Multiple writes will append
+ * 	to the buffer.
+ *
+ * These write modes control how current file position affects the behavior of
+ * updating sysctl values through the proc interface on each write.
+ */
+enum sysctl_writes_mode {
+	SYSCTL_WRITES_LEGACY		= -1,
+	SYSCTL_WRITES_WARN		= 0,
+	SYSCTL_WRITES_STRICT		= 1,
+};
 
-static int sysctl_writes_strict = SYSCTL_WRITES_STRICT;
+static enum sysctl_writes_mode sysctl_writes_strict = SYSCTL_WRITES_STRICT;
 
 static int proc_do_cad_pid(struct ctl_table *table, int write,
 		  void __user *buffer, size_t *lenp, loff_t *ppos);
@@ -880,6 +901,14 @@ static struct ctl_table kern_table[] = {
 #endif
 	},
 	{
+		.procname	= "watchdog_cpumask",
+		.data		= &watchdog_cpumask_bits,
+		.maxlen		= NR_CPUS,
+		.mode		= 0644,
+		.proc_handler	= proc_watchdog_cpumask,
+	},
+#ifdef CONFIG_SOFTLOCKUP_DETECTOR
+	{
 		.procname       = "soft_watchdog",
 		.data           = &soft_watchdog_enabled,
 		.maxlen         = sizeof (int),
@@ -889,13 +918,6 @@ static struct ctl_table kern_table[] = {
 		.extra2		= &one,
 	},
 	{
-		.procname	= "watchdog_cpumask",
-		.data		= &watchdog_cpumask_bits,
-		.maxlen		= NR_CPUS,
-		.mode		= 0644,
-		.proc_handler	= proc_watchdog_cpumask,
-	},
-	{
 		.procname	= "softlockup_panic",
 		.data		= &softlockup_panic,
 		.maxlen		= sizeof(int),
@@ -904,27 +926,29 @@ static struct ctl_table kern_table[] = {
 		.extra1		= &zero,
 		.extra2		= &one,
 	},
-#ifdef CONFIG_HARDLOCKUP_DETECTOR
+#ifdef CONFIG_SMP
 	{
-		.procname	= "hardlockup_panic",
-		.data		= &hardlockup_panic,
+		.procname	= "softlockup_all_cpu_backtrace",
+		.data		= &sysctl_softlockup_all_cpu_backtrace,
 		.maxlen		= sizeof(int),
 		.mode		= 0644,
 		.proc_handler	= proc_dointvec_minmax,
 		.extra1		= &zero,
 		.extra2		= &one,
 	},
+#endif /* CONFIG_SMP */
 #endif
-#ifdef CONFIG_SMP
+#ifdef CONFIG_HARDLOCKUP_DETECTOR
 	{
-		.procname	= "softlockup_all_cpu_backtrace",
-		.data		= &sysctl_softlockup_all_cpu_backtrace,
+		.procname	= "hardlockup_panic",
+		.data		= &hardlockup_panic,
 		.maxlen		= sizeof(int),
 		.mode		= 0644,
 		.proc_handler	= proc_dointvec_minmax,
 		.extra1		= &zero,
 		.extra2		= &one,
 	},
+#ifdef CONFIG_SMP
 	{
 		.procname	= "hardlockup_all_cpu_backtrace",
 		.data		= &sysctl_hardlockup_all_cpu_backtrace,
@@ -936,6 +960,8 @@ static struct ctl_table kern_table[] = {
 	},
 #endif /* CONFIG_SMP */
 #endif
+#endif
+
 #if defined(CONFIG_X86_LOCAL_APIC) && defined(CONFIG_X86)
 	{
 		.procname       = "unknown_nmi_panic",
@@ -1950,6 +1976,32 @@ static void warn_sysctl_write(struct ctl_table *table)
 }
 
 /**
+ * proc_first_pos_non_zero_ignore - check if firs position is allowed
+ * @ppos: file position
+ * @table: the sysctl table
+ *
+ * Returns true if the first position is non-zero and the sysctl_writes_strict
+ * mode indicates this is not allowed for numeric input types. String proc
+ * hadlers can ignore the return value.
+ */
+static bool proc_first_pos_non_zero_ignore(loff_t *ppos,
+					   struct ctl_table *table)
+{
+	if (!*ppos)
+		return false;
+
+	switch (sysctl_writes_strict) {
+	case SYSCTL_WRITES_STRICT:
+		return true;
+	case SYSCTL_WRITES_WARN:
+		warn_sysctl_write(table);
+		return false;
+	default:
+		return false;
+	}
+}
+
+/**
  * proc_dostring - read a string sysctl
  * @table: the sysctl table
  * @write: %TRUE if this is a write to the sysctl file
@@ -1969,8 +2021,8 @@ static void warn_sysctl_write(struct ctl_table *table)
 int proc_dostring(struct ctl_table *table, int write,
 		  void __user *buffer, size_t *lenp, loff_t *ppos)
 {
-	if (write && *ppos && sysctl_writes_strict == SYSCTL_WRITES_WARN)
-		warn_sysctl_write(table);
+	if (write)
+		proc_first_pos_non_zero_ignore(ppos, table);
 
 	return _proc_do_string((char *)(table->data), table->maxlen, write,
 			       (char __user *)buffer, lenp, ppos);
@@ -2128,19 +2180,18 @@ static int do_proc_dointvec_conv(bool *negp, unsigned long *lvalp,
 	return 0;
 }
 
-static int do_proc_douintvec_conv(bool *negp, unsigned long *lvalp,
-				 int *valp,
-				 int write, void *data)
+static int do_proc_douintvec_conv(unsigned long *lvalp,
+				  unsigned int *valp,
+				  int write, void *data)
 {
 	if (write) {
-		if (*negp)
+		if (*lvalp > UINT_MAX)
 			return -EINVAL;
 		if (*lvalp > UINT_MAX)
 			return -EINVAL;
 		*valp = *lvalp;
 	} else {
 		unsigned int val = *valp;
-		*negp = false;
 		*lvalp = (unsigned long)val;
 	}
 	return 0;
@@ -2172,17 +2223,8 @@ static int __do_proc_dointvec(void *tbl_data, struct ctl_table *table,
 		conv = do_proc_dointvec_conv;
 
 	if (write) {
-		if (*ppos) {
-			switch (sysctl_writes_strict) {
-			case SYSCTL_WRITES_STRICT:
-				goto out;
-			case SYSCTL_WRITES_WARN:
-				warn_sysctl_write(table);
-				break;
-			default:
-				break;
-			}
-		}
+		if (proc_first_pos_non_zero_ignore(ppos, table))
+			goto out;
 
 		if (left > PAGE_SIZE - 1)
 			left = PAGE_SIZE - 1;
@@ -2249,6 +2291,146 @@ static int do_proc_dointvec(struct ctl_table *table, int write,
 			buffer, lenp, ppos, conv, data);
 }
 
+static int do_proc_douintvec_w(unsigned int *tbl_data,
+			       struct ctl_table *table,
+			       void __user *buffer,
+			       size_t *lenp, loff_t *ppos,
+			       int (*conv)(unsigned long *lvalp,
+					   unsigned int *valp,
+					   int write, void *data),
+			       void *data)
+{
+	unsigned long lval;
+	int err = 0;
+	size_t left;
+	bool neg;
+	char *kbuf = NULL, *p;
+
+	left = *lenp;
+
+	if (proc_first_pos_non_zero_ignore(ppos, table))
+		goto bail_early;
+
+	if (left > PAGE_SIZE - 1)
+		left = PAGE_SIZE - 1;
+
+	p = kbuf = memdup_user_nul(buffer, left);
+	if (IS_ERR(kbuf))
+		return -EINVAL;
+
+	left -= proc_skip_spaces(&p);
+	if (!left) {
+		err = -EINVAL;
+		goto out_free;
+	}
+
+	err = proc_get_long(&p, &left, &lval, &neg,
+			     proc_wspace_sep,
+			     sizeof(proc_wspace_sep), NULL);
+	if (err || neg) {
+		err = -EINVAL;
+		goto out_free;
+	}
+
+	if (conv(&lval, tbl_data, 1, data)) {
+		err = -EINVAL;
+		goto out_free;
+	}
+
+	if (!err && left)
+		left -= proc_skip_spaces(&p);
+
+out_free:
+	kfree(kbuf);
+	if (err)
+		return -EINVAL;
+
+	return 0;
+
+	/* This is in keeping with old __do_proc_dointvec() */
+bail_early:
+	*ppos += *lenp;
+	return err;
+}
+
+static int do_proc_douintvec_r(unsigned int *tbl_data, void __user *buffer,
+			       size_t *lenp, loff_t *ppos,
+			       int (*conv)(unsigned long *lvalp,
+					   unsigned int *valp,
+					   int write, void *data),
+			       void *data)
+{
+	unsigned long lval;
+	int err = 0;
+	size_t left;
+
+	left = *lenp;
+
+	if (conv(&lval, tbl_data, 0, data)) {
+		err = -EINVAL;
+		goto out;
+	}
+
+	err = proc_put_long(&buffer, &left, lval, false);
+	if (err || !left)
+		goto out;
+
+	err = proc_put_char(&buffer, &left, '\n');
+
+out:
+	*lenp -= left;
+	*ppos += *lenp;
+
+	return err;
+}
+
+static int __do_proc_douintvec(void *tbl_data, struct ctl_table *table,
+			       int write, void __user *buffer,
+			       size_t *lenp, loff_t *ppos,
+			       int (*conv)(unsigned long *lvalp,
+					   unsigned int *valp,
+					   int write, void *data),
+			       void *data)
+{
+	unsigned int *i, vleft;
+
+	if (!tbl_data || !table->maxlen || !*lenp || (*ppos && !write)) {
+		*lenp = 0;
+		return 0;
+	}
+
+	i = (unsigned int *) tbl_data;
+	vleft = table->maxlen / sizeof(*i);
+
+	/*
+	 * Arrays are not supported, keep this simple. *Do not* add
+	 * support for them.
+	 */
+	if (vleft != 1) {
+		*lenp = 0;
+		return -EINVAL;
+	}
+
+	if (!conv)
+		conv = do_proc_douintvec_conv;
+
+	if (write)
+		return do_proc_douintvec_w(i, table, buffer, lenp, ppos,
+					   conv, data);
+	return do_proc_douintvec_r(i, buffer, lenp, ppos, conv, data);
+}
+
+static int do_proc_douintvec(struct ctl_table *table, int write,
+			     void __user *buffer, size_t *lenp, loff_t *ppos,
+			     int (*conv)(unsigned long *lvalp,
+					 unsigned int *valp,
+					 int write, void *data),
+			     void *data)
+{
+	return __do_proc_douintvec(table->data, table, write,
+				   buffer, lenp, ppos, conv, data);
+}
+
 /**
  * proc_dointvec - read a vector of integers
  * @table: the sysctl table
@@ -2284,8 +2466,8 @@ int proc_dointvec(struct ctl_table *table, int write,
 int proc_douintvec(struct ctl_table *table, int write,
 		     void __user *buffer, size_t *lenp, loff_t *ppos)
 {
-	return do_proc_dointvec(table, write, buffer, lenp, ppos,
-				do_proc_douintvec_conv, NULL);
+	return do_proc_douintvec(table, write, buffer, lenp, ppos,
+				 do_proc_douintvec_conv, NULL);
 }
 
 /*
@@ -2390,6 +2572,65 @@ int proc_dointvec_minmax(struct ctl_table *table, int write,
 				do_proc_dointvec_minmax_conv, &param);
 }
 
+struct do_proc_douintvec_minmax_conv_param {
+	unsigned int *min;
+	unsigned int *max;
+};
+
+static int do_proc_douintvec_minmax_conv(unsigned long *lvalp,
+					 unsigned int *valp,
+					 int write, void *data)
+{
+	struct do_proc_douintvec_minmax_conv_param *param = data;
+
+	if (write) {
+		unsigned int val = *lvalp;
+
+		if ((param->min && *param->min > val) ||
+		    (param->max && *param->max < val))
+			return -ERANGE;
+
+		if (*lvalp > UINT_MAX)
+			return -EINVAL;
+		*valp = val;
+	} else {
+		unsigned int val = *valp;
+		*lvalp = (unsigned long) val;
+	}
+
+	return 0;
+}
+
+/**
+ * proc_douintvec_minmax - read a vector of unsigned ints with min/max values
+ * @table: the sysctl table
+ * @write: %TRUE if this is a write to the sysctl file
+ * @buffer: the user buffer
+ * @lenp: the size of the user buffer
+ * @ppos: file position
+ *
+ * Reads/writes up to table->maxlen/sizeof(unsigned int) unsigned integer
+ * values from/to the user buffer, treated as an ASCII string. Negative
+ * strings are not allowed.
+ *
+ * This routine will ensure the values are within the range specified by
+ * table->extra1 (min) and table->extra2 (max). There is a final sanity
+ * check for UINT_MAX to avoid having to support wrap around uses from
+ * userspace.
+ *
+ * Returns 0 on success.
+ */
+int proc_douintvec_minmax(struct ctl_table *table, int write,
+			  void __user *buffer, size_t *lenp, loff_t *ppos)
+{
+	struct do_proc_douintvec_minmax_conv_param param = {
+		.min = (unsigned int *) table->extra1,
+		.max = (unsigned int *) table->extra2,
+	};
+	return do_proc_douintvec(table, write, buffer, lenp, ppos,
+				 do_proc_douintvec_minmax_conv, &param);
+}
+
 static void validate_coredump_safety(void)
 {
 #ifdef CONFIG_COREDUMP
@@ -2447,17 +2688,8 @@ static int __do_proc_doulongvec_minmax(void *data, struct ctl_table *table, int
 	left = *lenp;
 
 	if (write) {
-		if (*ppos) {
-			switch (sysctl_writes_strict) {
-			case SYSCTL_WRITES_STRICT:
-				goto out;
-			case SYSCTL_WRITES_WARN:
-				warn_sysctl_write(table);
-				break;
-			default:
-				break;
-			}
-		}
+		if (proc_first_pos_non_zero_ignore(ppos, table))
+			goto out;
 
 		if (left > PAGE_SIZE - 1)
 			left = PAGE_SIZE - 1;
@@ -2898,6 +3130,12 @@ int proc_dointvec_minmax(struct ctl_table *table, int write,
 	return -ENOSYS;
 }
 
+int proc_douintvec_minmax(struct ctl_table *table, int write,
+			  void __user *buffer, size_t *lenp, loff_t *ppos)
+{
+	return -ENOSYS;
+}
+
 int proc_dointvec_jiffies(struct ctl_table *table, int write,
 		    void __user *buffer, size_t *lenp, loff_t *ppos)
 {
@@ -2940,6 +3178,7 @@ EXPORT_SYMBOL(proc_dointvec);
 EXPORT_SYMBOL(proc_douintvec);
 EXPORT_SYMBOL(proc_dointvec_jiffies);
 EXPORT_SYMBOL(proc_dointvec_minmax);
+EXPORT_SYMBOL_GPL(proc_douintvec_minmax);
 EXPORT_SYMBOL(proc_dointvec_userhz_jiffies);
 EXPORT_SYMBOL(proc_dointvec_ms_jiffies);
 EXPORT_SYMBOL(proc_dostring);
diff --git a/kernel/sysctl_binary.c b/kernel/sysctl_binary.c
index 939a158eab11..02e1859f2ca8 100644
--- a/kernel/sysctl_binary.c
+++ b/kernel/sysctl_binary.c
@@ -1346,7 +1346,7 @@ static void deprecated_sysctl_warning(const int *name, int nlen)
 	 * CTL_KERN/KERN_VERSION is used by older glibc and cannot
 	 * ever go away.
 	 */
-	if (name[0] == CTL_KERN && name[1] == KERN_VERSION)
+	if (nlen >= 2 && name[0] == CTL_KERN && name[1] == KERN_VERSION)
 		return;
 
 	if (printk_ratelimit()) {
diff --git a/kernel/time/timer.c b/kernel/time/timer.c
index 71ce3f4eead3..8f5d1bf18854 100644
--- a/kernel/time/timer.c
+++ b/kernel/time/timer.c
@@ -1495,7 +1495,7 @@ u64 get_next_timer_interrupt(unsigned long basej, u64 basem)
 		base->is_idle = false;
 	} else {
 		if (!is_max_delta)
-			expires = basem + (nextevt - basej) * TICK_NSEC;
+			expires = basem + (u64)(nextevt - basej) * TICK_NSEC;
 		/*
 		 * If we expect to sleep more than a tick, mark the base idle:
 		 */
diff --git a/kernel/trace/bpf_trace.c b/kernel/trace/bpf_trace.c
index 37385193a608..dc498b605d5d 100644
--- a/kernel/trace/bpf_trace.c
+++ b/kernel/trace/bpf_trace.c
@@ -204,10 +204,36 @@ BPF_CALL_5(bpf_trace_printk, char *, fmt, u32, fmt_size, u64, arg1,
 		fmt_cnt++;
 	}
 
-	return __trace_printk(1/* fake ip will not be printed */, fmt,
-			      mod[0] == 2 ? arg1 : mod[0] == 1 ? (long) arg1 : (u32) arg1,
-			      mod[1] == 2 ? arg2 : mod[1] == 1 ? (long) arg2 : (u32) arg2,
-			      mod[2] == 2 ? arg3 : mod[2] == 1 ? (long) arg3 : (u32) arg3);
+/* Horrid workaround for getting va_list handling working with different
+ * argument type combinations generically for 32 and 64 bit archs.
+ */
+#define __BPF_TP_EMIT()	__BPF_ARG3_TP()
+#define __BPF_TP(...)							\
+	__trace_printk(1 /* Fake ip will not be printed. */,		\
+		       fmt, ##__VA_ARGS__)
+
+#define __BPF_ARG1_TP(...)						\
+	((mod[0] == 2 || (mod[0] == 1 && __BITS_PER_LONG == 64))	\
+	  ? __BPF_TP(arg1, ##__VA_ARGS__)				\
+	  : ((mod[0] == 1 || (mod[0] == 0 && __BITS_PER_LONG == 32))	\
+	      ? __BPF_TP((long)arg1, ##__VA_ARGS__)			\
+	      : __BPF_TP((u32)arg1, ##__VA_ARGS__)))
+
+#define __BPF_ARG2_TP(...)						\
+	((mod[1] == 2 || (mod[1] == 1 && __BITS_PER_LONG == 64))	\
+	  ? __BPF_ARG1_TP(arg2, ##__VA_ARGS__)				\
+	  : ((mod[1] == 1 || (mod[1] == 0 && __BITS_PER_LONG == 32))	\
+	      ? __BPF_ARG1_TP((long)arg2, ##__VA_ARGS__)		\
+	      : __BPF_ARG1_TP((u32)arg2, ##__VA_ARGS__)))
+
+#define __BPF_ARG3_TP(...)						\
+	((mod[2] == 2 || (mod[2] == 1 && __BITS_PER_LONG == 64))	\
+	  ? __BPF_ARG2_TP(arg3, ##__VA_ARGS__)				\
+	  : ((mod[2] == 1 || (mod[2] == 0 && __BITS_PER_LONG == 32))	\
+	      ? __BPF_ARG2_TP((long)arg3, ##__VA_ARGS__)		\
+	      : __BPF_ARG2_TP((u32)arg3, ##__VA_ARGS__)))
+
+	return __BPF_TP_EMIT();
 }
 
 static const struct bpf_func_proto bpf_trace_printk_proto = {
diff --git a/kernel/trace/ftrace.c b/kernel/trace/ftrace.c
index 2953d558bbee..02004ae91860 100644
--- a/kernel/trace/ftrace.c
+++ b/kernel/trace/ftrace.c
@@ -113,7 +113,7 @@ static int ftrace_disabled __read_mostly;
 
 static DEFINE_MUTEX(ftrace_lock);
 
-static struct ftrace_ops *ftrace_ops_list __read_mostly = &ftrace_list_end;
+static struct ftrace_ops __rcu *ftrace_ops_list __read_mostly = &ftrace_list_end;
 ftrace_func_t ftrace_trace_function __read_mostly = ftrace_stub;
 static struct ftrace_ops global_ops;
 
@@ -169,8 +169,11 @@ int ftrace_nr_registered_ops(void)
 
 	mutex_lock(&ftrace_lock);
 
-	for (ops = ftrace_ops_list;
-	     ops != &ftrace_list_end; ops = ops->next)
+	for (ops = rcu_dereference_protected(ftrace_ops_list,
+					     lockdep_is_held(&ftrace_lock));
+	     ops != &ftrace_list_end;
+	     ops = rcu_dereference_protected(ops->next,
+					     lockdep_is_held(&ftrace_lock)))
 		cnt++;
 
 	mutex_unlock(&ftrace_lock);
@@ -275,10 +278,11 @@ static void update_ftrace_function(void)
 	 * If there's only one ftrace_ops registered, the ftrace_ops_list
 	 * will point to the ops we want.
 	 */
-	set_function_trace_op = ftrace_ops_list;
+	set_function_trace_op = rcu_dereference_protected(ftrace_ops_list,
+						lockdep_is_held(&ftrace_lock));
 
 	/* If there's no ftrace_ops registered, just call the stub function */
-	if (ftrace_ops_list == &ftrace_list_end) {
+	if (set_function_trace_op == &ftrace_list_end) {
 		func = ftrace_stub;
 
 	/*
@@ -286,7 +290,8 @@ static void update_ftrace_function(void)
 	 * recursion safe and not dynamic and the arch supports passing ops,
 	 * then have the mcount trampoline call the function directly.
 	 */
-	} else if (ftrace_ops_list->next == &ftrace_list_end) {
+	} else if (rcu_dereference_protected(ftrace_ops_list->next,
+			lockdep_is_held(&ftrace_lock)) == &ftrace_list_end) {
 		func = ftrace_ops_get_list_func(ftrace_ops_list);
 
 	} else {
@@ -348,9 +353,11 @@ int using_ftrace_ops_list_func(void)
 	return ftrace_trace_function == ftrace_ops_list_func;
 }
 
-static void add_ftrace_ops(struct ftrace_ops **list, struct ftrace_ops *ops)
+static void add_ftrace_ops(struct ftrace_ops __rcu **list,
+			   struct ftrace_ops *ops)
 {
-	ops->next = *list;
+	rcu_assign_pointer(ops->next, *list);
+
 	/*
 	 * We are entering ops into the list but another
 	 * CPU might be walking that list. We need to make sure
@@ -360,7 +367,8 @@ static void add_ftrace_ops(struct ftrace_ops **list, struct ftrace_ops *ops)
 	rcu_assign_pointer(*list, ops);
 }
 
-static int remove_ftrace_ops(struct ftrace_ops **list, struct ftrace_ops *ops)
+static int remove_ftrace_ops(struct ftrace_ops __rcu **list,
+			     struct ftrace_ops *ops)
 {
 	struct ftrace_ops **p;
 
@@ -368,7 +376,10 @@ static int remove_ftrace_ops(struct ftrace_ops **list, struct ftrace_ops *ops)
 	 * If we are removing the last function, then simply point
 	 * to the ftrace_stub.
 	 */
-	if (*list == ops && ops->next == &ftrace_list_end) {
+	if (rcu_dereference_protected(*list,
+			lockdep_is_held(&ftrace_lock)) == ops &&
+	    rcu_dereference_protected(ops->next,
+			lockdep_is_held(&ftrace_lock)) == &ftrace_list_end) {
 		*list = &ftrace_list_end;
 		return 0;
 	}
@@ -1569,8 +1580,8 @@ ftrace_ops_test(struct ftrace_ops *ops, unsigned long ip, void *regs)
 		return 0;
 #endif
 
-	hash.filter_hash = rcu_dereference_raw_notrace(ops->func_hash->filter_hash);
-	hash.notrace_hash = rcu_dereference_raw_notrace(ops->func_hash->notrace_hash);
+	rcu_assign_pointer(hash.filter_hash, ops->func_hash->filter_hash);
+	rcu_assign_pointer(hash.notrace_hash, ops->func_hash->notrace_hash);
 
 	if (hash_contains_ip(ip, &hash))
 		ret = 1;
@@ -2840,7 +2851,8 @@ static int ftrace_shutdown(struct ftrace_ops *ops, int command)
 	 * If there's no more ops registered with ftrace, run a
 	 * sanity check to make sure all rec flags are cleared.
 	 */
-	if (ftrace_ops_list == &ftrace_list_end) {
+	if (rcu_dereference_protected(ftrace_ops_list,
+			lockdep_is_held(&ftrace_lock)) == &ftrace_list_end) {
 		struct ftrace_page *pg;
 		struct dyn_ftrace *rec;
 
@@ -3816,7 +3828,7 @@ match_records(struct ftrace_hash *hash, char *func, int len, char *mod)
 	int exclude_mod = 0;
 	int found = 0;
 	int ret;
-	int clear_filter;
+	int clear_filter = 0;
 
 	if (func) {
 		func_g.type = filter_parse_regex(func, len, &func_g.search,
@@ -3950,7 +3962,7 @@ static int cache_mod(struct trace_array *tr,
 				continue;
 
 			/* no func matches all */
-			if (!func || strcmp(func, "*") == 0 ||
+			if (strcmp(func, "*") == 0 ||
 			    (ftrace_mod->func &&
 			     strcmp(ftrace_mod->func, func) == 0)) {
 				ret = 0;
@@ -3978,6 +3990,7 @@ static int
 ftrace_set_regex(struct ftrace_ops *ops, unsigned char *buf, int len,
 		 int reset, int enable);
 
+#ifdef CONFIG_MODULES
 static void process_mod_list(struct list_head *head, struct ftrace_ops *ops,
 			     char *mod, bool enable)
 {
@@ -4068,6 +4081,7 @@ static void process_cached_mods(const char *mod_name)
 
 	kfree(mod);
 }
+#endif
 
 /*
  * We register the module command as a template to show others how
@@ -6451,7 +6465,8 @@ ftrace_enable_sysctl(struct ctl_table *table, int write,
 	if (ftrace_enabled) {
 
 		/* we are starting ftrace again */
-		if (ftrace_ops_list != &ftrace_list_end)
+		if (rcu_dereference_protected(ftrace_ops_list,
+			lockdep_is_held(&ftrace_lock)) != &ftrace_list_end)
 			update_ftrace_function();
 
 		ftrace_startup_sysctl();
diff --git a/kernel/trace/ring_buffer.c b/kernel/trace/ring_buffer.c
index 4ae268e687fe..529cc50d7243 100644
--- a/kernel/trace/ring_buffer.c
+++ b/kernel/trace/ring_buffer.c
@@ -1136,12 +1136,12 @@ static int __rb_allocate_pages(long nr_pages, struct list_head *pages, int cpu)
 	for (i = 0; i < nr_pages; i++) {
 		struct page *page;
 		/*
-		 * __GFP_NORETRY flag makes sure that the allocation fails
-		 * gracefully without invoking oom-killer and the system is
-		 * not destabilized.
+		 * __GFP_RETRY_MAYFAIL flag makes sure that the allocation fails
+		 * gracefully without invoking oom-killer and the system is not
+		 * destabilized.
 		 */
 		bpage = kzalloc_node(ALIGN(sizeof(*bpage), cache_line_size()),
-				    GFP_KERNEL | __GFP_NORETRY,
+				    GFP_KERNEL | __GFP_RETRY_MAYFAIL,
 				    cpu_to_node(cpu));
 		if (!bpage)
 			goto free_pages;
@@ -1149,7 +1149,7 @@ static int __rb_allocate_pages(long nr_pages, struct list_head *pages, int cpu)
 		list_add(&bpage->list, pages);
 
 		page = alloc_pages_node(cpu_to_node(cpu),
-					GFP_KERNEL | __GFP_NORETRY, 0);
+					GFP_KERNEL | __GFP_RETRY_MAYFAIL, 0);
 		if (!page)
 			goto free_pages;
 		bpage->page = page_address(page);
diff --git a/kernel/trace/trace.c b/kernel/trace/trace.c
index 948ec32e0c27..42b9355033d4 100644
--- a/kernel/trace/trace.c
+++ b/kernel/trace/trace.c
@@ -1916,7 +1916,11 @@ static int trace_save_cmdline(struct task_struct *tsk)
 {
 	unsigned pid, idx;
 
-	if (!tsk->pid || unlikely(tsk->pid > PID_MAX_DEFAULT))
+	/* treat recording of idle task as a success */
+	if (!tsk->pid)
+		return 1;
+
+	if (unlikely(tsk->pid > PID_MAX_DEFAULT))
 		return 0;
 
 	/*
@@ -2002,7 +2006,11 @@ int trace_find_tgid(int pid)
 
 static int trace_save_tgid(struct task_struct *tsk)
 {
-	if (unlikely(!tgid_map || !tsk->pid || tsk->pid > PID_MAX_DEFAULT))
+	/* treat recording of idle task as a success */
+	if (!tsk->pid)
+		return 1;
+
+	if (unlikely(!tgid_map || tsk->pid > PID_MAX_DEFAULT))
 		return 0;
 
 	tgid_map[tsk->pid] = tsk->tgid;
@@ -2029,11 +2037,20 @@ static bool tracing_record_taskinfo_skip(int flags)
  */
 void tracing_record_taskinfo(struct task_struct *task, int flags)
 {
+	bool done;
+
 	if (tracing_record_taskinfo_skip(flags))
 		return;
-	if ((flags & TRACE_RECORD_CMDLINE) && !trace_save_cmdline(task))
-		return;
-	if ((flags & TRACE_RECORD_TGID) && !trace_save_tgid(task))
+
+	/*
+	 * Record as much task information as possible. If some fail, continue
+	 * to try to record the others.
+	 */
+	done = !(flags & TRACE_RECORD_CMDLINE) || trace_save_cmdline(task);
+	done &= !(flags & TRACE_RECORD_TGID) || trace_save_tgid(task);
+
+	/* If recording any information failed, retry again soon. */
+	if (!done)
 		return;
 
 	__this_cpu_write(trace_taskinfo_save, false);
@@ -2050,15 +2067,22 @@ void tracing_record_taskinfo(struct task_struct *task, int flags)
 void tracing_record_taskinfo_sched_switch(struct task_struct *prev,
 					  struct task_struct *next, int flags)
 {
+	bool done;
+
 	if (tracing_record_taskinfo_skip(flags))
 		return;
 
-	if ((flags & TRACE_RECORD_CMDLINE) &&
-	    (!trace_save_cmdline(prev) || !trace_save_cmdline(next)))
-		return;
+	/*
+	 * Record as much task information as possible. If some fail, continue
+	 * to try to record the others.
+	 */
+	done  = !(flags & TRACE_RECORD_CMDLINE) || trace_save_cmdline(prev);
+	done &= !(flags & TRACE_RECORD_CMDLINE) || trace_save_cmdline(next);
+	done &= !(flags & TRACE_RECORD_TGID) || trace_save_tgid(prev);
+	done &= !(flags & TRACE_RECORD_TGID) || trace_save_tgid(next);
 
-	if ((flags & TRACE_RECORD_TGID) &&
-	    (!trace_save_tgid(prev) || !trace_save_tgid(next)))
+	/* If recording any information failed, retry again soon. */
+	if (!done)
 		return;
 
 	__this_cpu_write(trace_taskinfo_save, false);
@@ -3334,14 +3358,23 @@ static void print_func_help_header_irq(struct trace_buffer *buf, struct seq_file
 				       unsigned int flags)
 {
 	bool tgid = flags & TRACE_ITER_RECORD_TGID;
-
-	seq_printf(m, "#                          %s  _-----=> irqs-off\n",	    tgid ? "          " : "");
-	seq_printf(m, "#                          %s / _----=> need-resched\n",	    tgid ? "          " : "");
-	seq_printf(m, "#                          %s| / _---=> hardirq/softirq\n",  tgid ? "          " : "");
-	seq_printf(m, "#                          %s|| / _--=> preempt-depth\n",    tgid ? "          " : "");
-	seq_printf(m, "#                          %s||| /     delay\n",		    tgid ? "          " : "");
-	seq_printf(m, "#           TASK-PID   CPU#%s||||    TIMESTAMP  FUNCTION\n", tgid ? "   TGID   " : "");
-	seq_printf(m, "#              | |       | %s||||       |         |\n",	    tgid ? "     |    " : "");
+	const char tgid_space[] = "          ";
+	const char space[] = "  ";
+
+	seq_printf(m, "#                          %s  _-----=> irqs-off\n",
+		   tgid ? tgid_space : space);
+	seq_printf(m, "#                          %s / _----=> need-resched\n",
+		   tgid ? tgid_space : space);
+	seq_printf(m, "#                          %s| / _---=> hardirq/softirq\n",
+		   tgid ? tgid_space : space);
+	seq_printf(m, "#                          %s|| / _--=> preempt-depth\n",
+		   tgid ? tgid_space : space);
+	seq_printf(m, "#                          %s||| /     delay\n",
+		   tgid ? tgid_space : space);
+	seq_printf(m, "#           TASK-PID   CPU#%s||||    TIMESTAMP  FUNCTION\n",
+		   tgid ? "   TGID   " : space);
+	seq_printf(m, "#              | |       | %s||||       |         |\n",
+		   tgid ? "     |    " : space);
 }
 
 void
@@ -4689,6 +4722,76 @@ static const struct file_operations tracing_readme_fops = {
 	.llseek		= generic_file_llseek,
 };
 
+static void *saved_tgids_next(struct seq_file *m, void *v, loff_t *pos)
+{
+	int *ptr = v;
+
+	if (*pos || m->count)
+		ptr++;
+
+	(*pos)++;
+
+	for (; ptr <= &tgid_map[PID_MAX_DEFAULT]; ptr++) {
+		if (trace_find_tgid(*ptr))
+			return ptr;
+	}
+
+	return NULL;
+}
+
+static void *saved_tgids_start(struct seq_file *m, loff_t *pos)
+{
+	void *v;
+	loff_t l = 0;
+
+	if (!tgid_map)
+		return NULL;
+
+	v = &tgid_map[0];
+	while (l <= *pos) {
+		v = saved_tgids_next(m, v, &l);
+		if (!v)
+			return NULL;
+	}
+
+	return v;
+}
+
+static void saved_tgids_stop(struct seq_file *m, void *v)
+{
+}
+
+static int saved_tgids_show(struct seq_file *m, void *v)
+{
+	int pid = (int *)v - tgid_map;
+
+	seq_printf(m, "%d %d\n", pid, trace_find_tgid(pid));
+	return 0;
+}
+
+static const struct seq_operations tracing_saved_tgids_seq_ops = {
+	.start		= saved_tgids_start,
+	.stop		= saved_tgids_stop,
+	.next		= saved_tgids_next,
+	.show		= saved_tgids_show,
+};
+
+static int tracing_saved_tgids_open(struct inode *inode, struct file *filp)
+{
+	if (tracing_disabled)
+		return -ENODEV;
+
+	return seq_open(filp, &tracing_saved_tgids_seq_ops);
+}
+
+
+static const struct file_operations tracing_saved_tgids_fops = {
+	.open		= tracing_saved_tgids_open,
+	.read		= seq_read,
+	.llseek		= seq_lseek,
+	.release	= seq_release,
+};
+
 static void *saved_cmdlines_next(struct seq_file *m, void *v, loff_t *pos)
 {
 	unsigned int *ptr = v;
@@ -7671,6 +7774,7 @@ static int instance_rmdir(const char *name)
 	}
 	kfree(tr->topts);
 
+	free_cpumask_var(tr->tracing_cpumask);
 	kfree(tr->name);
 	kfree(tr);
 
@@ -7921,6 +8025,9 @@ static __init int tracer_init_tracefs(void)
 	trace_create_file("saved_cmdlines_size", 0644, d_tracer,
 			  NULL, &tracing_saved_cmdlines_size_fops);
 
+	trace_create_file("saved_tgids", 0444, d_tracer,
+			NULL, &tracing_saved_tgids_fops);
+
 	trace_eval_init();
 
 	trace_create_eval_file(d_tracer);
diff --git a/kernel/trace/trace.h b/kernel/trace/trace.h
index 6ade1c55cc3a..490ba229931d 100644
--- a/kernel/trace/trace.h
+++ b/kernel/trace/trace.h
@@ -1210,9 +1210,9 @@ struct ftrace_event_field {
 struct event_filter {
 	int			n_preds;	/* Number assigned */
 	int			a_preds;	/* allocated */
-	struct filter_pred	*preds;
-	struct filter_pred	*root;
-	char			*filter_string;
+	struct filter_pred __rcu	*preds;
+	struct filter_pred __rcu	*root;
+	char				*filter_string;
 };
 
 struct event_subsystem {
diff --git a/kernel/trace/trace_kprobe.c b/kernel/trace/trace_kprobe.c
index 2c5221819be5..c9b5aa10fbf9 100644
--- a/kernel/trace/trace_kprobe.c
+++ b/kernel/trace/trace_kprobe.c
@@ -598,6 +598,14 @@ static struct notifier_block trace_kprobe_module_nb = {
 	.priority = 1	/* Invoked after kprobe module callback */
 };
 
+/* Convert certain expected symbols into '_' when generating event names */
+static inline void sanitize_event_name(char *name)
+{
+	while (*name++ != '\0')
+		if (*name == ':' || *name == '.')
+			*name = '_';
+}
+
 static int create_trace_kprobe(int argc, char **argv)
 {
 	/*
@@ -736,6 +744,7 @@ static int create_trace_kprobe(int argc, char **argv)
 		else
 			snprintf(buf, MAX_EVENT_NAME_LEN, "%c_0x%p",
 				 is_return ? 'r' : 'p', addr);
+		sanitize_event_name(buf);
 		event = buf;
 	}
 	tk = alloc_trace_kprobe(group, event, addr, symbol, offset, maxactive,
diff --git a/kernel/trace/trace_stack.c b/kernel/trace/trace_stack.c
index b4a751e8f9d6..a4df67cbc711 100644
--- a/kernel/trace/trace_stack.c
+++ b/kernel/trace/trace_stack.c
@@ -406,6 +406,8 @@ static const struct file_operations stack_trace_fops = {
 	.release	= seq_release,
 };
 
+#ifdef CONFIG_DYNAMIC_FTRACE
+
 static int
 stack_trace_filter_open(struct inode *inode, struct file *file)
 {
@@ -423,6 +425,8 @@ static const struct file_operations stack_trace_filter_fops = {
 	.release = ftrace_regex_release,
 };
 
+#endif /* CONFIG_DYNAMIC_FTRACE */
+
 int
 stack_trace_sysctl(struct ctl_table *table, int write,
 		   void __user *buffer, size_t *lenp,
@@ -477,8 +481,10 @@ static __init int stack_trace_init(void)
 	trace_create_file("stack_trace", 0444, d_tracer,
 			NULL, &stack_trace_fops);
 
+#ifdef CONFIG_DYNAMIC_FTRACE
 	trace_create_file("stack_trace_filter", 0444, d_tracer,
 			  &trace_ops, &stack_trace_filter_fops);
+#endif
 
 	if (stack_trace_filter_buf[0])
 		ftrace_set_early_filter(&trace_ops, stack_trace_filter_buf, 1);
diff --git a/kernel/watchdog.c b/kernel/watchdog.c
index 03e0b69bb5bf..f5d52024f6b7 100644
--- a/kernel/watchdog.c
+++ b/kernel/watchdog.c
@@ -9,7 +9,7 @@
  * to those contributors as well.
  */
 
-#define pr_fmt(fmt) "NMI watchdog: " fmt
+#define pr_fmt(fmt) "watchdog: " fmt
 
 #include <linux/mm.h>
 #include <linux/cpu.h>
@@ -29,15 +29,58 @@
 #include <linux/kvm_para.h>
 #include <linux/kthread.h>
 
+/* Watchdog configuration */
 static DEFINE_MUTEX(watchdog_proc_mutex);
 
-#if defined(CONFIG_HAVE_NMI_WATCHDOG) || defined(CONFIG_HARDLOCKUP_DETECTOR)
-unsigned long __read_mostly watchdog_enabled = SOFT_WATCHDOG_ENABLED|NMI_WATCHDOG_ENABLED;
+int __read_mostly nmi_watchdog_enabled;
+
+#if defined(CONFIG_HARDLOCKUP_DETECTOR) || defined(CONFIG_HAVE_NMI_WATCHDOG)
+unsigned long __read_mostly watchdog_enabled = SOFT_WATCHDOG_ENABLED |
+						NMI_WATCHDOG_ENABLED;
 #else
 unsigned long __read_mostly watchdog_enabled = SOFT_WATCHDOG_ENABLED;
 #endif
-int __read_mostly nmi_watchdog_enabled;
+
+#ifdef CONFIG_HARDLOCKUP_DETECTOR
+/* boot commands */
+/*
+ * Should we panic when a soft-lockup or hard-lockup occurs:
+ */
+unsigned int __read_mostly hardlockup_panic =
+			CONFIG_BOOTPARAM_HARDLOCKUP_PANIC_VALUE;
+/*
+ * We may not want to enable hard lockup detection by default in all cases,
+ * for example when running the kernel as a guest on a hypervisor. In these
+ * cases this function can be called to disable hard lockup detection. This
+ * function should only be executed once by the boot processor before the
+ * kernel command line parameters are parsed, because otherwise it is not
+ * possible to override this in hardlockup_panic_setup().
+ */
+void hardlockup_detector_disable(void)
+{
+	watchdog_enabled &= ~NMI_WATCHDOG_ENABLED;
+}
+
+static int __init hardlockup_panic_setup(char *str)
+{
+	if (!strncmp(str, "panic", 5))
+		hardlockup_panic = 1;
+	else if (!strncmp(str, "nopanic", 7))
+		hardlockup_panic = 0;
+	else if (!strncmp(str, "0", 1))
+		watchdog_enabled &= ~NMI_WATCHDOG_ENABLED;
+	else if (!strncmp(str, "1", 1))
+		watchdog_enabled |= NMI_WATCHDOG_ENABLED;
+	return 1;
+}
+__setup("nmi_watchdog=", hardlockup_panic_setup);
+
+#endif
+
+#ifdef CONFIG_SOFTLOCKUP_DETECTOR
 int __read_mostly soft_watchdog_enabled;
+#endif
+
 int __read_mostly watchdog_user_enabled;
 int __read_mostly watchdog_thresh = 10;
 
@@ -45,15 +88,9 @@ int __read_mostly watchdog_thresh = 10;
 int __read_mostly sysctl_softlockup_all_cpu_backtrace;
 int __read_mostly sysctl_hardlockup_all_cpu_backtrace;
 #endif
-static struct cpumask watchdog_cpumask __read_mostly;
+struct cpumask watchdog_cpumask __read_mostly;
 unsigned long *watchdog_cpumask_bits = cpumask_bits(&watchdog_cpumask);
 
-/* Helper for online, unparked cpus. */
-#define for_each_watchdog_cpu(cpu) \
-	for_each_cpu_and((cpu), cpu_online_mask, &watchdog_cpumask)
-
-atomic_t watchdog_park_in_progress = ATOMIC_INIT(0);
-
 /*
  * The 'watchdog_running' variable is set to 1 when the watchdog threads
  * are registered/started and is set to 0 when the watchdog threads are
@@ -72,7 +109,47 @@ static int __read_mostly watchdog_running;
  * of 'watchdog_running' cannot change while the watchdog is deactivated
  * temporarily (see related code in 'proc' handlers).
  */
-static int __read_mostly watchdog_suspended;
+int __read_mostly watchdog_suspended;
+
+/*
+ * These functions can be overridden if an architecture implements its
+ * own hardlockup detector.
+ *
+ * watchdog_nmi_enable/disable can be implemented to start and stop when
+ * softlockup watchdog threads start and stop. The arch must select the
+ * SOFTLOCKUP_DETECTOR Kconfig.
+ */
+int __weak watchdog_nmi_enable(unsigned int cpu)
+{
+	return 0;
+}
+void __weak watchdog_nmi_disable(unsigned int cpu)
+{
+}
+
+/*
+ * watchdog_nmi_reconfigure can be implemented to be notified after any
+ * watchdog configuration change. The arch hardlockup watchdog should
+ * respond to the following variables:
+ * - nmi_watchdog_enabled
+ * - watchdog_thresh
+ * - watchdog_cpumask
+ * - sysctl_hardlockup_all_cpu_backtrace
+ * - hardlockup_panic
+ * - watchdog_suspended
+ */
+void __weak watchdog_nmi_reconfigure(void)
+{
+}
+
+
+#ifdef CONFIG_SOFTLOCKUP_DETECTOR
+
+/* Helper for online, unparked cpus. */
+#define for_each_watchdog_cpu(cpu) \
+	for_each_cpu_and((cpu), cpu_online_mask, &watchdog_cpumask)
+
+atomic_t watchdog_park_in_progress = ATOMIC_INIT(0);
 
 static u64 __read_mostly sample_period;
 
@@ -120,6 +197,7 @@ static int __init softlockup_all_cpu_backtrace_setup(char *str)
 	return 1;
 }
 __setup("softlockup_all_cpu_backtrace=", softlockup_all_cpu_backtrace_setup);
+#ifdef CONFIG_HARDLOCKUP_DETECTOR
 static int __init hardlockup_all_cpu_backtrace_setup(char *str)
 {
 	sysctl_hardlockup_all_cpu_backtrace =
@@ -128,6 +206,7 @@ static int __init hardlockup_all_cpu_backtrace_setup(char *str)
 }
 __setup("hardlockup_all_cpu_backtrace=", hardlockup_all_cpu_backtrace_setup);
 #endif
+#endif
 
 /*
  * Hard-lockup warnings should be triggered after just a few seconds. Soft-
@@ -161,6 +240,7 @@ static void set_sample_period(void)
 	 * hardlockup detector generates a warning
 	 */
 	sample_period = get_softlockup_thresh() * ((u64)NSEC_PER_SEC / 5);
+	watchdog_update_hrtimer_threshold(sample_period);
 }
 
 /* Commands for resetting the watchdog */
@@ -213,18 +293,6 @@ void touch_softlockup_watchdog_sync(void)
 	__this_cpu_write(watchdog_touch_ts, 0);
 }
 
-/* watchdog detector functions */
-bool is_hardlockup(void)
-{
-	unsigned long hrint = __this_cpu_read(hrtimer_interrupts);
-
-	if (__this_cpu_read(hrtimer_interrupts_saved) == hrint)
-		return true;
-
-	__this_cpu_write(hrtimer_interrupts_saved, hrint);
-	return false;
-}
-
 static int is_softlockup(unsigned long touch_ts)
 {
 	unsigned long now = get_timestamp();
@@ -237,21 +305,21 @@ static int is_softlockup(unsigned long touch_ts)
 	return 0;
 }
 
-static void watchdog_interrupt_count(void)
+/* watchdog detector functions */
+bool is_hardlockup(void)
 {
-	__this_cpu_inc(hrtimer_interrupts);
-}
+	unsigned long hrint = __this_cpu_read(hrtimer_interrupts);
 
-/*
- * These two functions are mostly architecture specific
- * defining them as weak here.
- */
-int __weak watchdog_nmi_enable(unsigned int cpu)
-{
-	return 0;
+	if (__this_cpu_read(hrtimer_interrupts_saved) == hrint)
+		return true;
+
+	__this_cpu_write(hrtimer_interrupts_saved, hrint);
+	return false;
 }
-void __weak watchdog_nmi_disable(unsigned int cpu)
+
+static void watchdog_interrupt_count(void)
 {
+	__this_cpu_inc(hrtimer_interrupts);
 }
 
 static int watchdog_enable_all_cpus(void);
@@ -502,57 +570,6 @@ static void watchdog_unpark_threads(void)
 		kthread_unpark(per_cpu(softlockup_watchdog, cpu));
 }
 
-/*
- * Suspend the hard and soft lockup detector by parking the watchdog threads.
- */
-int lockup_detector_suspend(void)
-{
-	int ret = 0;
-
-	get_online_cpus();
-	mutex_lock(&watchdog_proc_mutex);
-	/*
-	 * Multiple suspend requests can be active in parallel (counted by
-	 * the 'watchdog_suspended' variable). If the watchdog threads are
-	 * running, the first caller takes care that they will be parked.
-	 * The state of 'watchdog_running' cannot change while a suspend
-	 * request is active (see related code in 'proc' handlers).
-	 */
-	if (watchdog_running && !watchdog_suspended)
-		ret = watchdog_park_threads();
-
-	if (ret == 0)
-		watchdog_suspended++;
-	else {
-		watchdog_disable_all_cpus();
-		pr_err("Failed to suspend lockup detectors, disabled\n");
-		watchdog_enabled = 0;
-	}
-
-	mutex_unlock(&watchdog_proc_mutex);
-
-	return ret;
-}
-
-/*
- * Resume the hard and soft lockup detector by unparking the watchdog threads.
- */
-void lockup_detector_resume(void)
-{
-	mutex_lock(&watchdog_proc_mutex);
-
-	watchdog_suspended--;
-	/*
-	 * The watchdog threads are unparked if they were previously running
-	 * and if there is no more active suspend request.
-	 */
-	if (watchdog_running && !watchdog_suspended)
-		watchdog_unpark_threads();
-
-	mutex_unlock(&watchdog_proc_mutex);
-	put_online_cpus();
-}
-
 static int update_watchdog_all_cpus(void)
 {
 	int ret;
@@ -605,6 +622,100 @@ static void watchdog_disable_all_cpus(void)
 }
 
 #ifdef CONFIG_SYSCTL
+static int watchdog_update_cpus(void)
+{
+	return smpboot_update_cpumask_percpu_thread(
+		    &watchdog_threads, &watchdog_cpumask);
+}
+#endif
+
+#else /* SOFTLOCKUP */
+static int watchdog_park_threads(void)
+{
+	return 0;
+}
+
+static void watchdog_unpark_threads(void)
+{
+}
+
+static int watchdog_enable_all_cpus(void)
+{
+	return 0;
+}
+
+static void watchdog_disable_all_cpus(void)
+{
+}
+
+#ifdef CONFIG_SYSCTL
+static int watchdog_update_cpus(void)
+{
+	return 0;
+}
+#endif
+
+static void set_sample_period(void)
+{
+}
+#endif /* SOFTLOCKUP */
+
+/*
+ * Suspend the hard and soft lockup detector by parking the watchdog threads.
+ */
+int lockup_detector_suspend(void)
+{
+	int ret = 0;
+
+	get_online_cpus();
+	mutex_lock(&watchdog_proc_mutex);
+	/*
+	 * Multiple suspend requests can be active in parallel (counted by
+	 * the 'watchdog_suspended' variable). If the watchdog threads are
+	 * running, the first caller takes care that they will be parked.
+	 * The state of 'watchdog_running' cannot change while a suspend
+	 * request is active (see related code in 'proc' handlers).
+	 */
+	if (watchdog_running && !watchdog_suspended)
+		ret = watchdog_park_threads();
+
+	if (ret == 0)
+		watchdog_suspended++;
+	else {
+		watchdog_disable_all_cpus();
+		pr_err("Failed to suspend lockup detectors, disabled\n");
+		watchdog_enabled = 0;
+	}
+
+	watchdog_nmi_reconfigure();
+
+	mutex_unlock(&watchdog_proc_mutex);
+
+	return ret;
+}
+
+/*
+ * Resume the hard and soft lockup detector by unparking the watchdog threads.
+ */
+void lockup_detector_resume(void)
+{
+	mutex_lock(&watchdog_proc_mutex);
+
+	watchdog_suspended--;
+	/*
+	 * The watchdog threads are unparked if they were previously running
+	 * and if there is no more active suspend request.
+	 */
+	if (watchdog_running && !watchdog_suspended)
+		watchdog_unpark_threads();
+
+	watchdog_nmi_reconfigure();
+
+	mutex_unlock(&watchdog_proc_mutex);
+	put_online_cpus();
+}
+
+#ifdef CONFIG_SYSCTL
 
 /*
  * Update the run state of the lockup detectors.
@@ -625,6 +736,8 @@ static int proc_watchdog_update(void)
 	else
 		watchdog_disable_all_cpus();
 
+	watchdog_nmi_reconfigure();
+
 	return err;
 
 }
@@ -810,10 +923,11 @@ int proc_watchdog_cpumask(struct ctl_table *table, int write,
 			 * a temporary cpumask, so we are likely not in a
 			 * position to do much else to make things better.
 			 */
-			if (smpboot_update_cpumask_percpu_thread(
-				    &watchdog_threads, &watchdog_cpumask) != 0)
+			if (watchdog_update_cpus() != 0)
 				pr_err("cpumask update failed\n");
 		}
+
+		watchdog_nmi_reconfigure();
 	}
 out:
 	mutex_unlock(&watchdog_proc_mutex);
diff --git a/kernel/watchdog_hld.c b/kernel/watchdog_hld.c
index 54a427d1f344..3a09ea1b1d3d 100644
--- a/kernel/watchdog_hld.c
+++ b/kernel/watchdog_hld.c
@@ -22,41 +22,9 @@ static DEFINE_PER_CPU(bool, hard_watchdog_warn);
 static DEFINE_PER_CPU(bool, watchdog_nmi_touch);
 static DEFINE_PER_CPU(struct perf_event *, watchdog_ev);
 
-/* boot commands */
-/*
- * Should we panic when a soft-lockup or hard-lockup occurs:
- */
-unsigned int __read_mostly hardlockup_panic =
-			CONFIG_BOOTPARAM_HARDLOCKUP_PANIC_VALUE;
 static unsigned long hardlockup_allcpu_dumped;
-/*
- * We may not want to enable hard lockup detection by default in all cases,
- * for example when running the kernel as a guest on a hypervisor. In these
- * cases this function can be called to disable hard lockup detection. This
- * function should only be executed once by the boot processor before the
- * kernel command line parameters are parsed, because otherwise it is not
- * possible to override this in hardlockup_panic_setup().
- */
-void hardlockup_detector_disable(void)
-{
-	watchdog_enabled &= ~NMI_WATCHDOG_ENABLED;
-}
 
-static int __init hardlockup_panic_setup(char *str)
-{
-	if (!strncmp(str, "panic", 5))
-		hardlockup_panic = 1;
-	else if (!strncmp(str, "nopanic", 7))
-		hardlockup_panic = 0;
-	else if (!strncmp(str, "0", 1))
-		watchdog_enabled &= ~NMI_WATCHDOG_ENABLED;
-	else if (!strncmp(str, "1", 1))
-		watchdog_enabled |= NMI_WATCHDOG_ENABLED;
-	return 1;
-}
-__setup("nmi_watchdog=", hardlockup_panic_setup);
-
-void touch_nmi_watchdog(void)
+void arch_touch_nmi_watchdog(void)
 {
 	/*
 	 * Using __raw here because some code paths have
@@ -66,9 +34,64 @@ void touch_nmi_watchdog(void)
 	 * going off.
 	 */
 	raw_cpu_write(watchdog_nmi_touch, true);
-	touch_softlockup_watchdog();
 }
-EXPORT_SYMBOL(touch_nmi_watchdog);
+EXPORT_SYMBOL(arch_touch_nmi_watchdog);
+
+#ifdef CONFIG_HARDLOCKUP_CHECK_TIMESTAMP
+static DEFINE_PER_CPU(ktime_t, last_timestamp);
+static DEFINE_PER_CPU(unsigned int, nmi_rearmed);
+static ktime_t watchdog_hrtimer_sample_threshold __read_mostly;
+
+void watchdog_update_hrtimer_threshold(u64 period)
+{
+	/*
+	 * The hrtimer runs with a period of (watchdog_threshold * 2) / 5
+	 *
+	 * So it runs effectively with 2.5 times the rate of the NMI
+	 * watchdog. That means the hrtimer should fire 2-3 times before
+	 * the NMI watchdog expires. The NMI watchdog on x86 is based on
+	 * unhalted CPU cycles, so if Turbo-Mode is enabled the CPU cycles
+	 * might run way faster than expected and the NMI fires in a
+	 * smaller period than the one deduced from the nominal CPU
+	 * frequency. Depending on the Turbo-Mode factor this might be fast
+	 * enough to get the NMI period smaller than the hrtimer watchdog
+	 * period and trigger false positives.
+	 *
+	 * The sample threshold is used to check in the NMI handler whether
+	 * the minimum time between two NMI samples has elapsed. That
+	 * prevents false positives.
+	 *
+	 * Set this to 4/5 of the actual watchdog threshold period so the
+	 * hrtimer is guaranteed to fire at least once within the real
+	 * watchdog threshold.
+	 */
+	watchdog_hrtimer_sample_threshold = period * 2;
+}
+
+static bool watchdog_check_timestamp(void)
+{
+	ktime_t delta, now = ktime_get_mono_fast_ns();
+
+	delta = now - __this_cpu_read(last_timestamp);
+	if (delta < watchdog_hrtimer_sample_threshold) {
+		/*
+		 * If ktime is jiffies based, a stalled timer would prevent
+		 * jiffies from being incremented and the filter would look
+		 * at a stale timestamp and never trigger.
+		 */
+		if (__this_cpu_inc_return(nmi_rearmed) < 10)
+			return false;
+	}
+	__this_cpu_write(nmi_rearmed, 0);
+	__this_cpu_write(last_timestamp, now);
+	return true;
+}
+#else
+static inline bool watchdog_check_timestamp(void)
+{
+	return true;
+}
+#endif
 
 static struct perf_event_attr wd_hw_attr = {
 	.type		= PERF_TYPE_HARDWARE,
@@ -94,6 +117,9 @@ static void watchdog_overflow_callback(struct perf_event *event,
 		return;
 	}
 
+	if (!watchdog_check_timestamp())
+		return;
+
 	/* check for a hardlockup
 	 * This is done by making sure our timer interrupt
 	 * is incrementing.  The timer interrupt should have
diff --git a/kernel/workqueue.c b/kernel/workqueue.c
index a86688fabc55..ca937b0c3a96 100644
--- a/kernel/workqueue.c
+++ b/kernel/workqueue.c
@@ -3577,6 +3577,13 @@ static bool wq_calc_node_cpumask(const struct workqueue_attrs *attrs, int node,
 
 	/* yeap, return possible CPUs in @node that @attrs wants */
 	cpumask_and(cpumask, attrs->cpumask, wq_numa_possible_cpumask[node]);
+
+	if (cpumask_empty(cpumask)) {
+		pr_warn_once("WARNING: workqueue cpumask: online intersect > "
+				"possible intersect\n");
+		return false;
+	}
+
 	return !cpumask_equal(cpumask, attrs->cpumask);
 
 use_dfl:
@@ -3744,8 +3751,12 @@ static int apply_workqueue_attrs_locked(struct workqueue_struct *wq,
 		return -EINVAL;
 
 	/* creating multiple pwqs breaks ordering guarantee */
-	if (WARN_ON((wq->flags & __WQ_ORDERED) && !list_empty(&wq->pwqs)))
-		return -EINVAL;
+	if (!list_empty(&wq->pwqs)) {
+		if (WARN_ON(wq->flags & __WQ_ORDERED_EXPLICIT))
+			return -EINVAL;
+
+		wq->flags &= ~__WQ_ORDERED;
+	}
 
 	ctx = apply_wqattrs_prepare(wq, attrs);
 	if (!ctx)
@@ -3929,6 +3940,16 @@ struct workqueue_struct *__alloc_workqueue_key(const char *fmt,
 	struct workqueue_struct *wq;
 	struct pool_workqueue *pwq;
 
+	/*
+	 * Unbound && max_active == 1 used to imply ordered, which is no
+	 * longer the case on NUMA machines due to per-node pools.  While
+	 * alloc_ordered_workqueue() is the right way to create an ordered
+	 * workqueue, keep the previous behavior to avoid subtle breakages
+	 * on NUMA.
+	 */
+	if ((flags & WQ_UNBOUND) && max_active == 1)
+		flags |= __WQ_ORDERED;
+
 	/* see the comment above the definition of WQ_POWER_EFFICIENT */
 	if ((flags & WQ_POWER_EFFICIENT) && wq_power_efficient)
 		flags |= WQ_UNBOUND;
@@ -4119,13 +4140,14 @@ void workqueue_set_max_active(struct workqueue_struct *wq, int max_active)
 	struct pool_workqueue *pwq;
 
 	/* disallow meddling with max_active for ordered workqueues */
-	if (WARN_ON(wq->flags & __WQ_ORDERED))
+	if (WARN_ON(wq->flags & __WQ_ORDERED_EXPLICIT))
 		return;
 
 	max_active = wq_clamp_max_active(max_active, wq->flags, wq->name);
 
 	mutex_lock(&wq->mutex);
 
+	wq->flags &= ~__WQ_ORDERED;
 	wq->saved_max_active = max_active;
 
 	for_each_pwq(pwq, wq)
@@ -5253,7 +5275,7 @@ int workqueue_sysfs_register(struct workqueue_struct *wq)
 	 * attributes breaks ordering guarantee.  Disallow exposing ordered
 	 * workqueues.
 	 */
-	if (WARN_ON(wq->flags & __WQ_ORDERED))
+	if (WARN_ON(wq->flags & __WQ_ORDERED_EXPLICIT))
 		return -EINVAL;
 
 	wq->wq_dev = wq_dev = kzalloc(sizeof(*wq_dev), GFP_KERNEL);
diff --git a/lib/Kconfig.debug b/lib/Kconfig.debug
index e20fc079bebd..c617b9d1d6cb 100644
--- a/lib/Kconfig.debug
+++ b/lib/Kconfig.debug
@@ -778,34 +778,52 @@ config DEBUG_SHIRQ
 menu "Debug Lockups and Hangs"
 
 config LOCKUP_DETECTOR
-	bool "Detect Hard and Soft Lockups"
+	bool
+
+config SOFTLOCKUP_DETECTOR
+	bool "Detect Soft Lockups"
 	depends on DEBUG_KERNEL && !S390
+	select LOCKUP_DETECTOR
 	help
 	  Say Y here to enable the kernel to act as a watchdog to detect
-	  hard and soft lockups.
+	  soft lockups.
 
 	  Softlockups are bugs that cause the kernel to loop in kernel
 	  mode for more than 20 seconds, without giving other tasks a
 	  chance to run.  The current stack trace is displayed upon
 	  detection and the system will stay locked up.
 
+config HARDLOCKUP_DETECTOR_PERF
+	bool
+	select SOFTLOCKUP_DETECTOR
+
+#
+# Enables a timestamp based low pass filter to compensate for perf based
+# hard lockup detection which runs too fast due to turbo modes.
+#
+config HARDLOCKUP_CHECK_TIMESTAMP
+	bool
+
+#
+# arch/ can define HAVE_HARDLOCKUP_DETECTOR_ARCH to provide their own hard
+# lockup detector rather than the perf based detector.
+#
+config HARDLOCKUP_DETECTOR
+	bool "Detect Hard Lockups"
+	depends on DEBUG_KERNEL && !S390
+	depends on HAVE_HARDLOCKUP_DETECTOR_PERF || HAVE_HARDLOCKUP_DETECTOR_ARCH
+	select LOCKUP_DETECTOR
+	select HARDLOCKUP_DETECTOR_PERF if HAVE_HARDLOCKUP_DETECTOR_PERF
+	select HARDLOCKUP_DETECTOR_ARCH if HAVE_HARDLOCKUP_DETECTOR_ARCH
+	help
+	  Say Y here to enable the kernel to act as a watchdog to detect
+	  hard lockups.
+
 	  Hardlockups are bugs that cause the CPU to loop in kernel mode
 	  for more than 10 seconds, without letting other interrupts have a
 	  chance to run.  The current stack trace is displayed upon detection
 	  and the system will stay locked up.
 
-	  The overhead should be minimal.  A periodic hrtimer runs to
-	  generate interrupts and kick the watchdog task every 4 seconds.
-	  An NMI is generated every 10 seconds or so to check for hardlockups.
-
-	  The frequency of hrtimer and NMI events and the soft and hard lockup
-	  thresholds can be controlled through the sysctl watchdog_thresh.
-
-config HARDLOCKUP_DETECTOR
-	def_bool y
-	depends on LOCKUP_DETECTOR && !HAVE_NMI_WATCHDOG
-	depends on PERF_EVENTS && HAVE_PERF_EVENTS_NMI
-
 config BOOTPARAM_HARDLOCKUP_PANIC
 	bool "Panic (Reboot) On Hard Lockups"
 	depends on HARDLOCKUP_DETECTOR
@@ -826,7 +844,7 @@ config BOOTPARAM_HARDLOCKUP_PANIC_VALUE
 
 config BOOTPARAM_SOFTLOCKUP_PANIC
 	bool "Panic (Reboot) On Soft Lockups"
-	depends on LOCKUP_DETECTOR
+	depends on SOFTLOCKUP_DETECTOR
 	help
 	  Say Y here to enable the kernel to panic on "soft lockups",
 	  which are bugs that cause the kernel to loop in kernel
@@ -843,7 +861,7 @@ config BOOTPARAM_SOFTLOCKUP_PANIC
 
 config BOOTPARAM_SOFTLOCKUP_PANIC_VALUE
 	int
-	depends on LOCKUP_DETECTOR
+	depends on SOFTLOCKUP_DETECTOR
 	range 0 1
 	default 0 if !BOOTPARAM_SOFTLOCKUP_PANIC
 	default 1 if BOOTPARAM_SOFTLOCKUP_PANIC
@@ -851,7 +869,7 @@ config BOOTPARAM_SOFTLOCKUP_PANIC_VALUE
 config DETECT_HUNG_TASK
 	bool "Detect Hung Tasks"
 	depends on DEBUG_KERNEL
-	default LOCKUP_DETECTOR
+	default SOFTLOCKUP_DETECTOR
 	help
 	  Say Y here to enable the kernel to detect "hung tasks",
 	  which are bugs that cause the task to be stuck in
@@ -1212,6 +1230,34 @@ config STACKTRACE
 	  It is also used by various kernel debugging features that require
 	  stack trace generation.
 
+config WARN_ALL_UNSEEDED_RANDOM
+	bool "Warn for all uses of unseeded randomness"
+	default n
+	help
+	  Some parts of the kernel contain bugs relating to their use of
+	  cryptographically secure random numbers before it's actually possible
+	  to generate those numbers securely. This setting ensures that these
+	  flaws don't go unnoticed, by enabling a message, should this ever
+	  occur. This will allow people with obscure setups to know when things
+	  are going wrong, so that they might contact developers about fixing
+	  it.
+
+	  Unfortunately, on some models of some architectures getting
+	  a fully seeded CRNG is extremely difficult, and so this can
+	  result in dmesg getting spammed for a surprisingly long
+	  time.  This is really bad from a security perspective, and
+	  so architecture maintainers really need to do what they can
+	  to get the CRNG seeded sooner after the system is booted.
+	  However, since users can not do anything actionble to
+	  address this, by default the kernel will issue only a single
+	  warning for the first use of unseeded randomness.
+
+	  Say Y here if you want to receive warnings for all uses of
+	  unseeded randomness.  This will be of use primarily for
+	  those developers interersted in improving the security of
+	  Linux kernels running on their architecture (or
+	  subarchitecture).
+
 config DEBUG_KOBJECT
 	bool "kobject debugging"
 	depends on DEBUG_KERNEL
@@ -1785,6 +1831,17 @@ config TEST_FIRMWARE
 
 	  If unsure, say N.
 
+config TEST_SYSCTL
+	tristate "sysctl test driver"
+	default n
+	depends on PROC_SYSCTL
+	help
+	  This builds the "test_sysctl" module. This driver enables to test the
+	  proc sysctl interfaces available to drivers safely without affecting
+	  production knobs which might alter system functionality.
+
+	  If unsure, say N.
+
 config TEST_UDELAY
 	tristate "udelay test driver"
 	default n
@@ -1825,6 +1882,33 @@ config BUG_ON_DATA_CORRUPTION
 
 	  If unsure, say N.
 
+config TEST_KMOD
+	tristate "kmod stress tester"
+	default n
+	depends on m
+	depends on BLOCK && (64BIT || LBDAF)	  # for XFS, BTRFS
+	depends on NETDEVICES && NET_CORE && INET # for TUN
+	select TEST_LKM
+	select XFS_FS
+	select TUN
+	select BTRFS_FS
+	help
+	  Test the kernel's module loading mechanism: kmod. kmod implements
+	  support to load modules using the Linux kernel's usermode helper.
+	  This test provides a series of tests against kmod.
+
+	  Although technically you can either build test_kmod as a module or
+	  into the kernel we disallow building it into the kernel since
+	  it stress tests request_module() and this will very likely cause
+	  some issues by taking over precious threads available from other
+	  module load requests, ultimately this could be fatal.
+
+	  To run tests run:
+
+	  tools/testing/selftests/kmod/kmod.sh --help
+
+	  If unsure, say N.
+
 source "samples/Kconfig"
 
 source "lib/Kconfig.kgdb"
diff --git a/lib/Makefile b/lib/Makefile
index 5a008329324e..40c18372b301 100644
--- a/lib/Makefile
+++ b/lib/Makefile
@@ -46,6 +46,7 @@ obj-$(CONFIG_TEST_HEXDUMP) += test_hexdump.o
 obj-y += kstrtox.o
 obj-$(CONFIG_TEST_BPF) += test_bpf.o
 obj-$(CONFIG_TEST_FIRMWARE) += test_firmware.o
+obj-$(CONFIG_TEST_SYSCTL) += test_sysctl.o
 obj-$(CONFIG_TEST_HASH) += test_hash.o test_siphash.o
 obj-$(CONFIG_TEST_KASAN) += test_kasan.o
 obj-$(CONFIG_TEST_KSTRTOX) += test-kstrtox.o
@@ -60,6 +61,7 @@ obj-$(CONFIG_TEST_PRINTF) += test_printf.o
 obj-$(CONFIG_TEST_BITMAP) += test_bitmap.o
 obj-$(CONFIG_TEST_UUID) += test_uuid.o
 obj-$(CONFIG_TEST_PARMAN) += test_parman.o
+obj-$(CONFIG_TEST_KMOD) += test_kmod.o
 
 ifeq ($(CONFIG_DEBUG_KOBJECT),y)
 CFLAGS_kobject.o += -DDEBUG
diff --git a/lib/atomic64_test.c b/lib/atomic64_test.c
index fd70c0e0e673..62ab629f51ca 100644
--- a/lib/atomic64_test.c
+++ b/lib/atomic64_test.c
@@ -153,8 +153,10 @@ static __init void test_atomic64(void)
 	long long v0 = 0xaaa31337c001d00dLL;
 	long long v1 = 0xdeadbeefdeafcafeLL;
 	long long v2 = 0xfaceabadf00df001LL;
+	long long v3 = 0x8000000000000000LL;
 	long long onestwos = 0x1111111122222222LL;
 	long long one = 1LL;
+	int r_int;
 
 	atomic64_t v = ATOMIC64_INIT(v0);
 	long long r = v0;
@@ -240,6 +242,11 @@ static __init void test_atomic64(void)
 	BUG_ON(!atomic64_inc_not_zero(&v));
 	r += one;
 	BUG_ON(v.counter != r);
+
+	/* Confirm the return value fits in an int, even if the value doesn't */
+	INIT(v3);
+	r_int = atomic64_inc_not_zero(&v);
+	BUG_ON(!r_int);
 }
 
 static __init int test_atomics_init(void)
diff --git a/lib/fault-inject.c b/lib/fault-inject.c
index 4ff157159a0d..cf7b129b0b2b 100644
--- a/lib/fault-inject.c
+++ b/lib/fault-inject.c
@@ -107,6 +107,17 @@ static inline bool fail_stacktrace(struct fault_attr *attr)
 
 bool should_fail(struct fault_attr *attr, ssize_t size)
 {
+	if (in_task()) {
+		unsigned int fail_nth = READ_ONCE(current->fail_nth);
+
+		if (fail_nth) {
+			if (!WRITE_ONCE(current->fail_nth, fail_nth - 1))
+				goto fail;
+
+			return false;
+		}
+	}
+
 	/* No need to check any other properties if the probability is 0 */
 	if (attr->probability == 0)
 		return false;
@@ -134,6 +145,7 @@ bool should_fail(struct fault_attr *attr, ssize_t size)
 	if (!fail_stacktrace(attr))
 		return false;
 
+fail:
 	fail_dump(attr);
 
 	if (atomic_read(&attr->times) != -1)
diff --git a/lib/percpu_counter.c b/lib/percpu_counter.c
index 8ee7e5ec21be..3bf4a9984f4c 100644
--- a/lib/percpu_counter.c
+++ b/lib/percpu_counter.c
@@ -72,6 +72,13 @@ void percpu_counter_set(struct percpu_counter *fbc, s64 amount)
 }
 EXPORT_SYMBOL(percpu_counter_set);
 
+/**
+ * This function is both preempt and irq safe. The former is due to explicit
+ * preemption disable. The latter is guaranteed by the fact that the slow path
+ * is explicitly protected by an irq-safe spinlock whereas the fast patch uses
+ * this_cpu_add which is irq-safe by definition. Hence there is no need muck
+ * with irq state before calling this one
+ */
 void percpu_counter_add_batch(struct percpu_counter *fbc, s64 amount, s32 batch)
 {
 	s64 count;
diff --git a/lib/rhashtable.c b/lib/rhashtable.c
index 42466c167257..707ca5d677c6 100644
--- a/lib/rhashtable.c
+++ b/lib/rhashtable.c
@@ -234,7 +234,7 @@ static struct bucket_table *bucket_table_alloc(struct rhashtable *ht,
 
 	INIT_LIST_HEAD(&tbl->walkers);
 
-	get_random_bytes(&tbl->hash_rnd, sizeof(tbl->hash_rnd));
+	tbl->hash_rnd = get_random_u32();
 
 	for (i = 0; i < nbuckets; i++)
 		INIT_RHT_NULLS_HEAD(tbl->buckets[i], ht, i);
diff --git a/lib/string.c b/lib/string.c
index 1c1fc9187b05..ebbb99c775bd 100644
--- a/lib/string.c
+++ b/lib/string.c
@@ -978,3 +978,10 @@ char *strreplace(char *s, char old, char new)
 	return s;
 }
 EXPORT_SYMBOL(strreplace);
+
+void fortify_panic(const char *name)
+{
+	pr_emerg("detected buffer overflow in %s\n", name);
+	BUG();
+}
+EXPORT_SYMBOL(fortify_panic);
diff --git a/lib/test_kmod.c b/lib/test_kmod.c
new file mode 100644
index 000000000000..ff9148969b92
--- /dev/null
+++ b/lib/test_kmod.c
@@ -0,0 +1,1246 @@
+/*
+ * kmod stress test driver
+ *
+ * Copyright (C) 2017 Luis R. Rodriguez <mcgrof@kernel.org>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the Free
+ * Software Foundation; either version 2 of the License, or at your option any
+ * later version; or, when distributed separately from the Linux kernel or
+ * when incorporated into other software packages, subject to the following
+ * license:
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of copyleft-next (version 0.3.1 or later) as published
+ * at http://copyleft-next.org/.
+ */
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
+/*
+ * This driver provides an interface to trigger and test the kernel's
+ * module loader through a series of configurations and a few triggers.
+ * To test this driver use the following script as root:
+ *
+ * tools/testing/selftests/kmod/kmod.sh --help
+ */
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/kmod.h>
+#include <linux/printk.h>
+#include <linux/kthread.h>
+#include <linux/sched.h>
+#include <linux/fs.h>
+#include <linux/miscdevice.h>
+#include <linux/vmalloc.h>
+#include <linux/slab.h>
+#include <linux/device.h>
+
+#define TEST_START_NUM_THREADS	50
+#define TEST_START_DRIVER	"test_module"
+#define TEST_START_TEST_FS	"xfs"
+#define TEST_START_TEST_CASE	TEST_KMOD_DRIVER
+
+
+static bool force_init_test = false;
+module_param(force_init_test, bool_enable_only, 0644);
+MODULE_PARM_DESC(force_init_test,
+		 "Force kicking a test immediately after driver loads");
+
+/*
+ * For device allocation / registration
+ */
+static DEFINE_MUTEX(reg_dev_mutex);
+static LIST_HEAD(reg_test_devs);
+
+/*
+ * num_test_devs actually represents the *next* ID of the next
+ * device we will allow to create.
+ */
+static int num_test_devs;
+
+/**
+ * enum kmod_test_case - linker table test case
+ *
+ * If you add a  test case, please be sure to review if you need to se
+ * @need_mod_put for your tests case.
+ *
+ * @TEST_KMOD_DRIVER: stress tests request_module()
+ * @TEST_KMOD_FS_TYPE: stress tests get_fs_type()
+ */
+enum kmod_test_case {
+	__TEST_KMOD_INVALID = 0,
+
+	TEST_KMOD_DRIVER,
+	TEST_KMOD_FS_TYPE,
+
+	__TEST_KMOD_MAX,
+};
+
+struct test_config {
+	char *test_driver;
+	char *test_fs;
+	unsigned int num_threads;
+	enum kmod_test_case test_case;
+	int test_result;
+};
+
+struct kmod_test_device;
+
+/**
+ * kmod_test_device_info - thread info
+ *
+ * @ret_sync: return value if request_module() is used, sync request for
+ * 	@TEST_KMOD_DRIVER
+ * @fs_sync: return value of get_fs_type() for @TEST_KMOD_FS_TYPE
+ * @thread_idx: thread ID
+ * @test_dev: test device test is being performed under
+ * @need_mod_put: Some tests (get_fs_type() is one) requires putting the module
+ *	(module_put(fs_sync->owner)) when done, otherwise you will not be able
+ *	to unload the respective modules and re-test. We use this to keep
+ *	accounting of when we need this and to help out in case we need to
+ *	error out and deal with module_put() on error.
+ */
+struct kmod_test_device_info {
+	int ret_sync;
+	struct file_system_type *fs_sync;
+	struct task_struct *task_sync;
+	unsigned int thread_idx;
+	struct kmod_test_device *test_dev;
+	bool need_mod_put;
+};
+
+/**
+ * kmod_test_device - test device to help test kmod
+ *
+ * @dev_idx: unique ID for test device
+ * @config: configuration for the test
+ * @misc_dev: we use a misc device under the hood
+ * @dev: pointer to misc_dev's own struct device
+ * @config_mutex: protects configuration of test
+ * @trigger_mutex: the test trigger can only be fired once at a time
+ * @thread_lock: protects @done count, and the @info per each thread
+ * @done: number of threads which have completed or failed
+ * @test_is_oom: when we run out of memory, use this to halt moving forward
+ * @kthreads_done: completion used to signal when all work is done
+ * @list: needed to be part of the reg_test_devs
+ * @info: array of info for each thread
+ */
+struct kmod_test_device {
+	int dev_idx;
+	struct test_config config;
+	struct miscdevice misc_dev;
+	struct device *dev;
+	struct mutex config_mutex;
+	struct mutex trigger_mutex;
+	struct mutex thread_mutex;
+
+	unsigned int done;
+
+	bool test_is_oom;
+	struct completion kthreads_done;
+	struct list_head list;
+
+	struct kmod_test_device_info *info;
+};
+
+static const char *test_case_str(enum kmod_test_case test_case)
+{
+	switch (test_case) {
+	case TEST_KMOD_DRIVER:
+		return "TEST_KMOD_DRIVER";
+	case TEST_KMOD_FS_TYPE:
+		return "TEST_KMOD_FS_TYPE";
+	default:
+		return "invalid";
+	}
+}
+
+static struct miscdevice *dev_to_misc_dev(struct device *dev)
+{
+	return dev_get_drvdata(dev);
+}
+
+static struct kmod_test_device *misc_dev_to_test_dev(struct miscdevice *misc_dev)
+{
+	return container_of(misc_dev, struct kmod_test_device, misc_dev);
+}
+
+static struct kmod_test_device *dev_to_test_dev(struct device *dev)
+{
+	struct miscdevice *misc_dev;
+
+	misc_dev = dev_to_misc_dev(dev);
+
+	return misc_dev_to_test_dev(misc_dev);
+}
+
+/* Must run with thread_mutex held */
+static void kmod_test_done_check(struct kmod_test_device *test_dev,
+				 unsigned int idx)
+{
+	struct test_config *config = &test_dev->config;
+
+	test_dev->done++;
+	dev_dbg(test_dev->dev, "Done thread count: %u\n", test_dev->done);
+
+	if (test_dev->done == config->num_threads) {
+		dev_info(test_dev->dev, "Done: %u threads have all run now\n",
+			 test_dev->done);
+		dev_info(test_dev->dev, "Last thread to run: %u\n", idx);
+		complete(&test_dev->kthreads_done);
+	}
+}
+
+static void test_kmod_put_module(struct kmod_test_device_info *info)
+{
+	struct kmod_test_device *test_dev = info->test_dev;
+	struct test_config *config = &test_dev->config;
+
+	if (!info->need_mod_put)
+		return;
+
+	switch (config->test_case) {
+	case TEST_KMOD_DRIVER:
+		break;
+	case TEST_KMOD_FS_TYPE:
+		if (info && info->fs_sync && info->fs_sync->owner)
+			module_put(info->fs_sync->owner);
+		break;
+	default:
+		BUG();
+	}
+
+	info->need_mod_put = true;
+}
+
+static int run_request(void *data)
+{
+	struct kmod_test_device_info *info = data;
+	struct kmod_test_device *test_dev = info->test_dev;
+	struct test_config *config = &test_dev->config;
+
+	switch (config->test_case) {
+	case TEST_KMOD_DRIVER:
+		info->ret_sync = request_module("%s", config->test_driver);
+		break;
+	case TEST_KMOD_FS_TYPE:
+		info->fs_sync = get_fs_type(config->test_fs);
+		info->need_mod_put = true;
+		break;
+	default:
+		/* __trigger_config_run() already checked for test sanity */
+		BUG();
+		return -EINVAL;
+	}
+
+	dev_dbg(test_dev->dev, "Ran thread %u\n", info->thread_idx);
+
+	test_kmod_put_module(info);
+
+	mutex_lock(&test_dev->thread_mutex);
+	info->task_sync = NULL;
+	kmod_test_done_check(test_dev, info->thread_idx);
+	mutex_unlock(&test_dev->thread_mutex);
+
+	return 0;
+}
+
+static int tally_work_test(struct kmod_test_device_info *info)
+{
+	struct kmod_test_device *test_dev = info->test_dev;
+	struct test_config *config = &test_dev->config;
+	int err_ret = 0;
+
+	switch (config->test_case) {
+	case TEST_KMOD_DRIVER:
+		/*
+		 * Only capture errors, if one is found that's
+		 * enough, for now.
+		 */
+		if (info->ret_sync != 0)
+			err_ret = info->ret_sync;
+		dev_info(test_dev->dev,
+			 "Sync thread %d return status: %d\n",
+			 info->thread_idx, info->ret_sync);
+		break;
+	case TEST_KMOD_FS_TYPE:
+		/* For now we make this simple */
+		if (!info->fs_sync)
+			err_ret = -EINVAL;
+		dev_info(test_dev->dev, "Sync thread %u fs: %s\n",
+			 info->thread_idx, info->fs_sync ? config->test_fs :
+			 "NULL");
+		break;
+	default:
+		BUG();
+	}
+
+	return err_ret;
+}
+
+/*
+ * XXX: add result option to display if all errors did not match.
+ * For now we just keep any error code if one was found.
+ *
+ * If this ran it means *all* tasks were created fine and we
+ * are now just collecting results.
+ *
+ * Only propagate errors, do not override with a subsequent sucess case.
+ */
+static void tally_up_work(struct kmod_test_device *test_dev)
+{
+	struct test_config *config = &test_dev->config;
+	struct kmod_test_device_info *info;
+	unsigned int idx;
+	int err_ret = 0;
+	int ret = 0;
+
+	mutex_lock(&test_dev->thread_mutex);
+
+	dev_info(test_dev->dev, "Results:\n");
+
+	for (idx=0; idx < config->num_threads; idx++) {
+		info = &test_dev->info[idx];
+		ret = tally_work_test(info);
+		if (ret)
+			err_ret = ret;
+	}
+
+	/*
+	 * Note: request_module() returns 256 for a module not found even
+	 * though modprobe itself returns 1.
+	 */
+	config->test_result = err_ret;
+
+	mutex_unlock(&test_dev->thread_mutex);
+}
+
+static int try_one_request(struct kmod_test_device *test_dev, unsigned int idx)
+{
+	struct kmod_test_device_info *info = &test_dev->info[idx];
+	int fail_ret = -ENOMEM;
+
+	mutex_lock(&test_dev->thread_mutex);
+
+	info->thread_idx = idx;
+	info->test_dev = test_dev;
+	info->task_sync = kthread_run(run_request, info, "%s-%u",
+				      KBUILD_MODNAME, idx);
+
+	if (!info->task_sync || IS_ERR(info->task_sync)) {
+		test_dev->test_is_oom = true;
+		dev_err(test_dev->dev, "Setting up thread %u failed\n", idx);
+		info->task_sync = NULL;
+		goto err_out;
+	} else
+		dev_dbg(test_dev->dev, "Kicked off thread %u\n", idx);
+
+	mutex_unlock(&test_dev->thread_mutex);
+
+	return 0;
+
+err_out:
+	info->ret_sync = fail_ret;
+	mutex_unlock(&test_dev->thread_mutex);
+
+	return fail_ret;
+}
+
+static void test_dev_kmod_stop_tests(struct kmod_test_device *test_dev)
+{
+	struct test_config *config = &test_dev->config;
+	struct kmod_test_device_info *info;
+	unsigned int i;
+
+	dev_info(test_dev->dev, "Ending request_module() tests\n");
+
+	mutex_lock(&test_dev->thread_mutex);
+
+	for (i=0; i < config->num_threads; i++) {
+		info = &test_dev->info[i];
+		if (info->task_sync && !IS_ERR(info->task_sync)) {
+			dev_info(test_dev->dev,
+				 "Stopping still-running thread %i\n", i);
+			kthread_stop(info->task_sync);
+		}
+
+		/*
+		 * info->task_sync is well protected, it can only be
+		 * NULL or a pointer to a struct. If its NULL we either
+		 * never ran, or we did and we completed the work. Completed
+		 * tasks *always* put the module for us. This is a sanity
+		 * check -- just in case.
+		 */
+		if (info->task_sync && info->need_mod_put)
+			test_kmod_put_module(info);
+	}
+
+	mutex_unlock(&test_dev->thread_mutex);
+}
+
+/*
+ * Only wait *iff* we did not run into any errors during all of our thread
+ * set up. If run into any issues we stop threads and just bail out with
+ * an error to the trigger. This also means we don't need any tally work
+ * for any threads which fail.
+ */
+static int try_requests(struct kmod_test_device *test_dev)
+{
+	struct test_config *config = &test_dev->config;
+	unsigned int idx;
+	int ret;
+	bool any_error = false;
+
+	for (idx=0; idx < config->num_threads; idx++) {
+		if (test_dev->test_is_oom) {
+			any_error = true;
+			break;
+		}
+
+		ret = try_one_request(test_dev, idx);
+		if (ret) {
+			any_error = true;
+			break;
+		}
+	}
+
+	if (!any_error) {
+		test_dev->test_is_oom = false;
+		dev_info(test_dev->dev,
+			 "No errors were found while initializing threads\n");
+		wait_for_completion(&test_dev->kthreads_done);
+		tally_up_work(test_dev);
+	} else {
+		test_dev->test_is_oom = true;
+		dev_info(test_dev->dev,
+			 "At least one thread failed to start, stop all work\n");
+		test_dev_kmod_stop_tests(test_dev);
+		return -ENOMEM;
+	}
+
+	return 0;
+}
+
+static int run_test_driver(struct kmod_test_device *test_dev)
+{
+	struct test_config *config = &test_dev->config;
+
+	dev_info(test_dev->dev, "Test case: %s (%u)\n",
+		 test_case_str(config->test_case),
+		 config->test_case);
+	dev_info(test_dev->dev, "Test driver to load: %s\n",
+		 config->test_driver);
+	dev_info(test_dev->dev, "Number of threads to run: %u\n",
+		 config->num_threads);
+	dev_info(test_dev->dev, "Thread IDs will range from 0 - %u\n",
+		 config->num_threads - 1);
+
+	return try_requests(test_dev);
+}
+
+static int run_test_fs_type(struct kmod_test_device *test_dev)
+{
+	struct test_config *config = &test_dev->config;
+
+	dev_info(test_dev->dev, "Test case: %s (%u)\n",
+		 test_case_str(config->test_case),
+		 config->test_case);
+	dev_info(test_dev->dev, "Test filesystem to load: %s\n",
+		 config->test_fs);
+	dev_info(test_dev->dev, "Number of threads to run: %u\n",
+		 config->num_threads);
+	dev_info(test_dev->dev, "Thread IDs will range from 0 - %u\n",
+		 config->num_threads - 1);
+
+	return try_requests(test_dev);
+}
+
+static ssize_t config_show(struct device *dev,
+			   struct device_attribute *attr,
+			   char *buf)
+{
+	struct kmod_test_device *test_dev = dev_to_test_dev(dev);
+	struct test_config *config = &test_dev->config;
+	int len = 0;
+
+	mutex_lock(&test_dev->config_mutex);
+
+	len += snprintf(buf, PAGE_SIZE,
+			"Custom trigger configuration for: %s\n",
+			dev_name(dev));
+
+	len += snprintf(buf+len, PAGE_SIZE - len,
+			"Number of threads:\t%u\n",
+			config->num_threads);
+
+	len += snprintf(buf+len, PAGE_SIZE - len,
+			"Test_case:\t%s (%u)\n",
+			test_case_str(config->test_case),
+			config->test_case);
+
+	if (config->test_driver)
+		len += snprintf(buf+len, PAGE_SIZE - len,
+				"driver:\t%s\n",
+				config->test_driver);
+	else
+		len += snprintf(buf+len, PAGE_SIZE - len,
+				"driver:\tEMPTY\n");
+
+	if (config->test_fs)
+		len += snprintf(buf+len, PAGE_SIZE - len,
+				"fs:\t%s\n",
+				config->test_fs);
+	else
+		len += snprintf(buf+len, PAGE_SIZE - len,
+				"fs:\tEMPTY\n");
+
+	mutex_unlock(&test_dev->config_mutex);
+
+	return len;
+}
+static DEVICE_ATTR_RO(config);
+
+/*
+ * This ensures we don't allow kicking threads through if our configuration
+ * is faulty.
+ */
+static int __trigger_config_run(struct kmod_test_device *test_dev)
+{
+	struct test_config *config = &test_dev->config;
+
+	test_dev->done = 0;
+
+	switch (config->test_case) {
+	case TEST_KMOD_DRIVER:
+		return run_test_driver(test_dev);
+	case TEST_KMOD_FS_TYPE:
+		return run_test_fs_type(test_dev);
+	default:
+		dev_warn(test_dev->dev,
+			 "Invalid test case requested: %u\n",
+			 config->test_case);
+		return -EINVAL;
+	}
+}
+
+static int trigger_config_run(struct kmod_test_device *test_dev)
+{
+	struct test_config *config = &test_dev->config;
+	int ret;
+
+	mutex_lock(&test_dev->trigger_mutex);
+	mutex_lock(&test_dev->config_mutex);
+
+	ret = __trigger_config_run(test_dev);
+	if (ret < 0)
+		goto out;
+	dev_info(test_dev->dev, "General test result: %d\n",
+		 config->test_result);
+
+	/*
+	 * We must return 0 after a trigger even unless something went
+	 * wrong with the setup of the test. If the test setup went fine
+	 * then userspace must just check the result of config->test_result.
+	 * One issue with relying on the return from a call in the kernel
+	 * is if the kernel returns a possitive value using this trigger
+	 * will not return the value to userspace, it would be lost.
+	 *
+	 * By not relying on capturing the return value of tests we are using
+	 * through the trigger it also us to run tests with set -e and only
+	 * fail when something went wrong with the driver upon trigger
+	 * requests.
+	 */
+	ret = 0;
+
+out:
+	mutex_unlock(&test_dev->config_mutex);
+	mutex_unlock(&test_dev->trigger_mutex);
+
+	return ret;
+}
+
+static ssize_t
+trigger_config_store(struct device *dev,
+		     struct device_attribute *attr,
+		     const char *buf, size_t count)
+{
+	struct kmod_test_device *test_dev = dev_to_test_dev(dev);
+	int ret;
+
+	if (test_dev->test_is_oom)
+		return -ENOMEM;
+
+	/* For all intents and purposes we don't care what userspace
+	 * sent this trigger, we care only that we were triggered.
+	 * We treat the return value only for caputuring issues with
+	 * the test setup. At this point all the test variables should
+	 * have been allocated so typically this should never fail.
+	 */
+	ret = trigger_config_run(test_dev);
+	if (unlikely(ret < 0))
+		goto out;
+
+	/*
+	 * Note: any return > 0 will be treated as success
+	 * and the error value will not be available to userspace.
+	 * Do not rely on trying to send to userspace a test value
+	 * return value as possitive return errors will be lost.
+	 */
+	if (WARN_ON(ret > 0))
+		return -EINVAL;
+
+	ret = count;
+out:
+	return ret;
+}
+static DEVICE_ATTR_WO(trigger_config);
+
+/*
+ * XXX: move to kstrncpy() once merged.
+ *
+ * Users should use kfree_const() when freeing these.
+ */
+static int __kstrncpy(char **dst, const char *name, size_t count, gfp_t gfp)
+{
+	*dst = kstrndup(name, count, gfp);
+	if (!*dst)
+		return -ENOSPC;
+	return count;
+}
+
+static int config_copy_test_driver_name(struct test_config *config,
+				    const char *name,
+				    size_t count)
+{
+	return __kstrncpy(&config->test_driver, name, count, GFP_KERNEL);
+}
+
+
+static int config_copy_test_fs(struct test_config *config, const char *name,
+			       size_t count)
+{
+	return __kstrncpy(&config->test_fs, name, count, GFP_KERNEL);
+}
+
+static void __kmod_config_free(struct test_config *config)
+{
+	if (!config)
+		return;
+
+	kfree_const(config->test_driver);
+	config->test_driver = NULL;
+
+	kfree_const(config->test_fs);
+	config->test_driver = NULL;
+}
+
+static void kmod_config_free(struct kmod_test_device *test_dev)
+{
+	struct test_config *config;
+
+	if (!test_dev)
+		return;
+
+	config = &test_dev->config;
+
+	mutex_lock(&test_dev->config_mutex);
+	__kmod_config_free(config);
+	mutex_unlock(&test_dev->config_mutex);
+}
+
+static ssize_t config_test_driver_store(struct device *dev,
+					struct device_attribute *attr,
+					const char *buf, size_t count)
+{
+	struct kmod_test_device *test_dev = dev_to_test_dev(dev);
+	struct test_config *config = &test_dev->config;
+	int copied;
+
+	mutex_lock(&test_dev->config_mutex);
+
+	kfree_const(config->test_driver);
+	config->test_driver = NULL;
+
+	copied = config_copy_test_driver_name(config, buf, count);
+	mutex_unlock(&test_dev->config_mutex);
+
+	return copied;
+}
+
+/*
+ * As per sysfs_kf_seq_show() the buf is max PAGE_SIZE.
+ */
+static ssize_t config_test_show_str(struct mutex *config_mutex,
+				    char *dst,
+				    char *src)
+{
+	int len;
+
+	mutex_lock(config_mutex);
+	len = snprintf(dst, PAGE_SIZE, "%s\n", src);
+	mutex_unlock(config_mutex);
+
+	return len;
+}
+
+static ssize_t config_test_driver_show(struct device *dev,
+					struct device_attribute *attr,
+					char *buf)
+{
+	struct kmod_test_device *test_dev = dev_to_test_dev(dev);
+	struct test_config *config = &test_dev->config;
+
+	return config_test_show_str(&test_dev->config_mutex, buf,
+				    config->test_driver);
+}
+static DEVICE_ATTR(config_test_driver, 0644, config_test_driver_show,
+		   config_test_driver_store);
+
+static ssize_t config_test_fs_store(struct device *dev,
+				    struct device_attribute *attr,
+				    const char *buf, size_t count)
+{
+	struct kmod_test_device *test_dev = dev_to_test_dev(dev);
+	struct test_config *config = &test_dev->config;
+	int copied;
+
+	mutex_lock(&test_dev->config_mutex);
+
+	kfree_const(config->test_fs);
+	config->test_fs = NULL;
+
+	copied = config_copy_test_fs(config, buf, count);
+	mutex_unlock(&test_dev->config_mutex);
+
+	return copied;
+}
+
+static ssize_t config_test_fs_show(struct device *dev,
+				   struct device_attribute *attr,
+				   char *buf)
+{
+	struct kmod_test_device *test_dev = dev_to_test_dev(dev);
+	struct test_config *config = &test_dev->config;
+
+	return config_test_show_str(&test_dev->config_mutex, buf,
+				    config->test_fs);
+}
+static DEVICE_ATTR(config_test_fs, 0644, config_test_fs_show,
+		   config_test_fs_store);
+
+static int trigger_config_run_type(struct kmod_test_device *test_dev,
+				   enum kmod_test_case test_case,
+				   const char *test_str)
+{
+	int copied = 0;
+	struct test_config *config = &test_dev->config;
+
+	mutex_lock(&test_dev->config_mutex);
+
+	switch (test_case) {
+	case TEST_KMOD_DRIVER:
+		kfree_const(config->test_driver);
+		config->test_driver = NULL;
+		copied = config_copy_test_driver_name(config, test_str,
+						      strlen(test_str));
+		break;
+	case TEST_KMOD_FS_TYPE:
+		kfree_const(config->test_fs);
+		config->test_driver = NULL;
+		copied = config_copy_test_fs(config, test_str,
+					     strlen(test_str));
+		break;
+	default:
+		mutex_unlock(&test_dev->config_mutex);
+		return -EINVAL;
+	}
+
+	config->test_case = test_case;
+
+	mutex_unlock(&test_dev->config_mutex);
+
+	if (copied <= 0 || copied != strlen(test_str)) {
+		test_dev->test_is_oom = true;
+		return -ENOMEM;
+	}
+
+	test_dev->test_is_oom = false;
+
+	return trigger_config_run(test_dev);
+}
+
+static void free_test_dev_info(struct kmod_test_device *test_dev)
+{
+	vfree(test_dev->info);
+	test_dev->info = NULL;
+}
+
+static int kmod_config_sync_info(struct kmod_test_device *test_dev)
+{
+	struct test_config *config = &test_dev->config;
+
+	free_test_dev_info(test_dev);
+	test_dev->info = vzalloc(config->num_threads *
+				 sizeof(struct kmod_test_device_info));
+	if (!test_dev->info) {
+		dev_err(test_dev->dev, "Cannot alloc test_dev info\n");
+		return -ENOMEM;
+	}
+
+	return 0;
+}
+
+/*
+ * Old kernels may not have this, if you want to port this code to
+ * test it on older kernels.
+ */
+#ifdef get_kmod_umh_limit
+static unsigned int kmod_init_test_thread_limit(void)
+{
+	return get_kmod_umh_limit();
+}
+#else
+static unsigned int kmod_init_test_thread_limit(void)
+{
+	return TEST_START_NUM_THREADS;
+}
+#endif
+
+static int __kmod_config_init(struct kmod_test_device *test_dev)
+{
+	struct test_config *config = &test_dev->config;
+	int ret = -ENOMEM, copied;
+
+	__kmod_config_free(config);
+
+	copied = config_copy_test_driver_name(config, TEST_START_DRIVER,
+					      strlen(TEST_START_DRIVER));
+	if (copied != strlen(TEST_START_DRIVER))
+		goto err_out;
+
+	copied = config_copy_test_fs(config, TEST_START_TEST_FS,
+				     strlen(TEST_START_TEST_FS));
+	if (copied != strlen(TEST_START_TEST_FS))
+		goto err_out;
+
+	config->num_threads = kmod_init_test_thread_limit();
+	config->test_result = 0;
+	config->test_case = TEST_START_TEST_CASE;
+
+	ret = kmod_config_sync_info(test_dev);
+	if (ret)
+		goto err_out;
+
+	test_dev->test_is_oom = false;
+
+	return 0;
+
+err_out:
+	test_dev->test_is_oom = true;
+	WARN_ON(test_dev->test_is_oom);
+
+	__kmod_config_free(config);
+
+	return ret;
+}
+
+static ssize_t reset_store(struct device *dev,
+			   struct device_attribute *attr,
+			   const char *buf, size_t count)
+{
+	struct kmod_test_device *test_dev = dev_to_test_dev(dev);
+	int ret;
+
+	mutex_lock(&test_dev->trigger_mutex);
+	mutex_lock(&test_dev->config_mutex);
+
+	ret = __kmod_config_init(test_dev);
+	if (ret < 0) {
+		ret = -ENOMEM;
+		dev_err(dev, "could not alloc settings for config trigger: %d\n",
+		       ret);
+		goto out;
+	}
+
+	dev_info(dev, "reset\n");
+	ret = count;
+
+out:
+	mutex_unlock(&test_dev->config_mutex);
+	mutex_unlock(&test_dev->trigger_mutex);
+
+	return ret;
+}
+static DEVICE_ATTR_WO(reset);
+
+static int test_dev_config_update_uint_sync(struct kmod_test_device *test_dev,
+					    const char *buf, size_t size,
+					    unsigned int *config,
+					    int (*test_sync)(struct kmod_test_device *test_dev))
+{
+	int ret;
+	unsigned long new;
+	unsigned int old_val;
+
+	ret = kstrtoul(buf, 10, &new);
+	if (ret)
+		return ret;
+
+	if (new > UINT_MAX)
+		return -EINVAL;
+
+	mutex_lock(&test_dev->config_mutex);
+
+	old_val = *config;
+	*(unsigned int *)config = new;
+
+	ret = test_sync(test_dev);
+	if (ret) {
+		*(unsigned int *)config = old_val;
+
+		ret = test_sync(test_dev);
+		WARN_ON(ret);
+
+		mutex_unlock(&test_dev->config_mutex);
+		return -EINVAL;
+	}
+
+	mutex_unlock(&test_dev->config_mutex);
+	/* Always return full write size even if we didn't consume all */
+	return size;
+}
+
+static int test_dev_config_update_uint_range(struct kmod_test_device *test_dev,
+					     const char *buf, size_t size,
+					     unsigned int *config,
+					     unsigned int min,
+					     unsigned int max)
+{
+	int ret;
+	unsigned long new;
+
+	ret = kstrtoul(buf, 10, &new);
+	if (ret)
+		return ret;
+
+	if (new < min || new >  max || new > UINT_MAX)
+		return -EINVAL;
+
+	mutex_lock(&test_dev->config_mutex);
+	*config = new;
+	mutex_unlock(&test_dev->config_mutex);
+
+	/* Always return full write size even if we didn't consume all */
+	return size;
+}
+
+static int test_dev_config_update_int(struct kmod_test_device *test_dev,
+				      const char *buf, size_t size,
+				      int *config)
+{
+	int ret;
+	long new;
+
+	ret = kstrtol(buf, 10, &new);
+	if (ret)
+		return ret;
+
+	if (new > INT_MAX || new < INT_MIN)
+		return -EINVAL;
+
+	mutex_lock(&test_dev->config_mutex);
+	*config = new;
+	mutex_unlock(&test_dev->config_mutex);
+	/* Always return full write size even if we didn't consume all */
+	return size;
+}
+
+static ssize_t test_dev_config_show_int(struct kmod_test_device *test_dev,
+					char *buf,
+					int config)
+{
+	int val;
+
+	mutex_lock(&test_dev->config_mutex);
+	val = config;
+	mutex_unlock(&test_dev->config_mutex);
+
+	return snprintf(buf, PAGE_SIZE, "%d\n", val);
+}
+
+static ssize_t test_dev_config_show_uint(struct kmod_test_device *test_dev,
+					 char *buf,
+					 unsigned int config)
+{
+	unsigned int val;
+
+	mutex_lock(&test_dev->config_mutex);
+	val = config;
+	mutex_unlock(&test_dev->config_mutex);
+
+	return snprintf(buf, PAGE_SIZE, "%u\n", val);
+}
+
+static ssize_t test_result_store(struct device *dev,
+				 struct device_attribute *attr,
+				 const char *buf, size_t count)
+{
+	struct kmod_test_device *test_dev = dev_to_test_dev(dev);
+	struct test_config *config = &test_dev->config;
+
+	return test_dev_config_update_int(test_dev, buf, count,
+					  &config->test_result);
+}
+
+static ssize_t config_num_threads_store(struct device *dev,
+					struct device_attribute *attr,
+					const char *buf, size_t count)
+{
+	struct kmod_test_device *test_dev = dev_to_test_dev(dev);
+	struct test_config *config = &test_dev->config;
+
+	return test_dev_config_update_uint_sync(test_dev, buf, count,
+						&config->num_threads,
+						kmod_config_sync_info);
+}
+
+static ssize_t config_num_threads_show(struct device *dev,
+				       struct device_attribute *attr,
+				       char *buf)
+{
+	struct kmod_test_device *test_dev = dev_to_test_dev(dev);
+	struct test_config *config = &test_dev->config;
+
+	return test_dev_config_show_int(test_dev, buf, config->num_threads);
+}
+static DEVICE_ATTR(config_num_threads, 0644, config_num_threads_show,
+		   config_num_threads_store);
+
+static ssize_t config_test_case_store(struct device *dev,
+				      struct device_attribute *attr,
+				      const char *buf, size_t count)
+{
+	struct kmod_test_device *test_dev = dev_to_test_dev(dev);
+	struct test_config *config = &test_dev->config;
+
+	return test_dev_config_update_uint_range(test_dev, buf, count,
+						 &config->test_case,
+						 __TEST_KMOD_INVALID + 1,
+						 __TEST_KMOD_MAX - 1);
+}
+
+static ssize_t config_test_case_show(struct device *dev,
+				     struct device_attribute *attr,
+				     char *buf)
+{
+	struct kmod_test_device *test_dev = dev_to_test_dev(dev);
+	struct test_config *config = &test_dev->config;
+
+	return test_dev_config_show_uint(test_dev, buf, config->test_case);
+}
+static DEVICE_ATTR(config_test_case, 0644, config_test_case_show,
+		   config_test_case_store);
+
+static ssize_t test_result_show(struct device *dev,
+				struct device_attribute *attr,
+				char *buf)
+{
+	struct kmod_test_device *test_dev = dev_to_test_dev(dev);
+	struct test_config *config = &test_dev->config;
+
+	return test_dev_config_show_int(test_dev, buf, config->test_result);
+}
+static DEVICE_ATTR(test_result, 0644, test_result_show, test_result_store);
+
+#define TEST_KMOD_DEV_ATTR(name)		&dev_attr_##name.attr
+
+static struct attribute *test_dev_attrs[] = {
+	TEST_KMOD_DEV_ATTR(trigger_config),
+	TEST_KMOD_DEV_ATTR(config),
+	TEST_KMOD_DEV_ATTR(reset),
+
+	TEST_KMOD_DEV_ATTR(config_test_driver),
+	TEST_KMOD_DEV_ATTR(config_test_fs),
+	TEST_KMOD_DEV_ATTR(config_num_threads),
+	TEST_KMOD_DEV_ATTR(config_test_case),
+	TEST_KMOD_DEV_ATTR(test_result),
+
+	NULL,
+};
+
+ATTRIBUTE_GROUPS(test_dev);
+
+static int kmod_config_init(struct kmod_test_device *test_dev)
+{
+	int ret;
+
+	mutex_lock(&test_dev->config_mutex);
+	ret = __kmod_config_init(test_dev);
+	mutex_unlock(&test_dev->config_mutex);
+
+	return ret;
+}
+
+static struct kmod_test_device *alloc_test_dev_kmod(int idx)
+{
+	int ret;
+	struct kmod_test_device *test_dev;
+	struct miscdevice *misc_dev;
+
+	test_dev = vzalloc(sizeof(struct kmod_test_device));
+	if (!test_dev) {
+		pr_err("Cannot alloc test_dev\n");
+		goto err_out;
+	}
+
+	mutex_init(&test_dev->config_mutex);
+	mutex_init(&test_dev->trigger_mutex);
+	mutex_init(&test_dev->thread_mutex);
+
+	init_completion(&test_dev->kthreads_done);
+
+	ret = kmod_config_init(test_dev);
+	if (ret < 0) {
+		pr_err("Cannot alloc kmod_config_init()\n");
+		goto err_out_free;
+	}
+
+	test_dev->dev_idx = idx;
+	misc_dev = &test_dev->misc_dev;
+
+	misc_dev->minor = MISC_DYNAMIC_MINOR;
+	misc_dev->name = kasprintf(GFP_KERNEL, "test_kmod%d", idx);
+	if (!misc_dev->name) {
+		pr_err("Cannot alloc misc_dev->name\n");
+		goto err_out_free_config;
+	}
+	misc_dev->groups = test_dev_groups;
+
+	return test_dev;
+
+err_out_free_config:
+	free_test_dev_info(test_dev);
+	kmod_config_free(test_dev);
+err_out_free:
+	vfree(test_dev);
+	test_dev = NULL;
+err_out:
+	return NULL;
+}
+
+static void free_test_dev_kmod(struct kmod_test_device *test_dev)
+{
+	if (test_dev) {
+		kfree_const(test_dev->misc_dev.name);
+		test_dev->misc_dev.name = NULL;
+		free_test_dev_info(test_dev);
+		kmod_config_free(test_dev);
+		vfree(test_dev);
+		test_dev = NULL;
+	}
+}
+
+static struct kmod_test_device *register_test_dev_kmod(void)
+{
+	struct kmod_test_device *test_dev = NULL;
+	int ret;
+
+	mutex_lock(&reg_dev_mutex);
+
+	/* int should suffice for number of devices, test for wrap */
+	if (unlikely(num_test_devs + 1) < 0) {
+		pr_err("reached limit of number of test devices\n");
+		goto out;
+	}
+
+	test_dev = alloc_test_dev_kmod(num_test_devs);
+	if (!test_dev)
+		goto out;
+
+	ret = misc_register(&test_dev->misc_dev);
+	if (ret) {
+		pr_err("could not register misc device: %d\n", ret);
+		free_test_dev_kmod(test_dev);
+		goto out;
+	}
+
+	test_dev->dev = test_dev->misc_dev.this_device;
+	list_add_tail(&test_dev->list, &reg_test_devs);
+	dev_info(test_dev->dev, "interface ready\n");
+
+	num_test_devs++;
+
+out:
+	mutex_unlock(&reg_dev_mutex);
+
+	return test_dev;
+
+}
+
+static int __init test_kmod_init(void)
+{
+	struct kmod_test_device *test_dev;
+	int ret;
+
+	test_dev = register_test_dev_kmod();
+	if (!test_dev) {
+		pr_err("Cannot add first test kmod device\n");
+		return -ENODEV;
+	}
+
+	/*
+	 * With some work we might be able to gracefully enable
+	 * testing with this driver built-in, for now this seems
+	 * rather risky. For those willing to try have at it,
+	 * and enable the below. Good luck! If that works, try
+	 * lowering the init level for more fun.
+	 */
+	if (force_init_test) {
+		ret = trigger_config_run_type(test_dev,
+					      TEST_KMOD_DRIVER, "tun");
+		if (WARN_ON(ret))
+			return ret;
+		ret = trigger_config_run_type(test_dev,
+					      TEST_KMOD_FS_TYPE, "btrfs");
+		if (WARN_ON(ret))
+			return ret;
+	}
+
+	return 0;
+}
+late_initcall(test_kmod_init);
+
+static
+void unregister_test_dev_kmod(struct kmod_test_device *test_dev)
+{
+	mutex_lock(&test_dev->trigger_mutex);
+	mutex_lock(&test_dev->config_mutex);
+
+	test_dev_kmod_stop_tests(test_dev);
+
+	dev_info(test_dev->dev, "removing interface\n");
+	misc_deregister(&test_dev->misc_dev);
+	kfree(&test_dev->misc_dev.name);
+
+	mutex_unlock(&test_dev->config_mutex);
+	mutex_unlock(&test_dev->trigger_mutex);
+
+	free_test_dev_kmod(test_dev);
+}
+
+static void __exit test_kmod_exit(void)
+{
+	struct kmod_test_device *test_dev, *tmp;
+
+	mutex_lock(&reg_dev_mutex);
+	list_for_each_entry_safe(test_dev, tmp, &reg_test_devs, list) {
+		list_del(&test_dev->list);
+		unregister_test_dev_kmod(test_dev);
+	}
+	mutex_unlock(&reg_dev_mutex);
+}
+module_exit(test_kmod_exit);
+
+MODULE_AUTHOR("Luis R. Rodriguez <mcgrof@kernel.org>");
+MODULE_LICENSE("GPL");
diff --git a/lib/test_rhashtable.c b/lib/test_rhashtable.c
index 64e899b63337..0ffca990a833 100644
--- a/lib/test_rhashtable.c
+++ b/lib/test_rhashtable.c
@@ -56,8 +56,13 @@ static bool enomem_retry = false;
 module_param(enomem_retry, bool, 0);
 MODULE_PARM_DESC(enomem_retry, "Retry insert even if -ENOMEM was returned (default: off)");
 
+struct test_obj_val {
+	int	id;
+	int	tid;
+};
+
 struct test_obj {
-	int			value;
+	struct test_obj_val	value;
 	struct rhash_head	node;
 };
 
@@ -72,7 +77,7 @@ static struct test_obj array[MAX_ENTRIES];
 static struct rhashtable_params test_rht_params = {
 	.head_offset = offsetof(struct test_obj, node),
 	.key_offset = offsetof(struct test_obj, value),
-	.key_len = sizeof(int),
+	.key_len = sizeof(struct test_obj_val),
 	.hashfn = jhash,
 	.nulls_base = (3U << RHT_BASE_SHIFT),
 };
@@ -109,24 +114,26 @@ static int __init test_rht_lookup(struct rhashtable *ht)
 	for (i = 0; i < entries * 2; i++) {
 		struct test_obj *obj;
 		bool expected = !(i % 2);
-		u32 key = i;
+		struct test_obj_val key = {
+			.id = i,
+		};
 
-		if (array[i / 2].value == TEST_INSERT_FAIL)
+		if (array[i / 2].value.id == TEST_INSERT_FAIL)
 			expected = false;
 
 		obj = rhashtable_lookup_fast(ht, &key, test_rht_params);
 
 		if (expected && !obj) {
-			pr_warn("Test failed: Could not find key %u\n", key);
+			pr_warn("Test failed: Could not find key %u\n", key.id);
 			return -ENOENT;
 		} else if (!expected && obj) {
 			pr_warn("Test failed: Unexpected entry found for key %u\n",
-				key);
+				key.id);
 			return -EEXIST;
 		} else if (expected && obj) {
-			if (obj->value != i) {
+			if (obj->value.id != i) {
 				pr_warn("Test failed: Lookup value mismatch %u!=%u\n",
-					obj->value, i);
+					obj->value.id, i);
 				return -EINVAL;
 			}
 		}
@@ -195,7 +202,7 @@ static s64 __init test_rhashtable(struct rhashtable *ht)
 	for (i = 0; i < entries; i++) {
 		struct test_obj *obj = &array[i];
 
-		obj->value = i * 2;
+		obj->value.id = i * 2;
 		err = insert_retry(ht, &obj->node, test_rht_params);
 		if (err > 0)
 			insert_retries += err;
@@ -216,9 +223,11 @@ static s64 __init test_rhashtable(struct rhashtable *ht)
 
 	pr_info("  Deleting %d keys\n", entries);
 	for (i = 0; i < entries; i++) {
-		u32 key = i * 2;
+		struct test_obj_val key = {
+			.id = i * 2,
+		};
 
-		if (array[i].value != TEST_INSERT_FAIL) {
+		if (array[i].value.id != TEST_INSERT_FAIL) {
 			obj = rhashtable_lookup_fast(ht, &key, test_rht_params);
 			BUG_ON(!obj);
 
@@ -242,18 +251,21 @@ static int thread_lookup_test(struct thread_data *tdata)
 
 	for (i = 0; i < entries; i++) {
 		struct test_obj *obj;
-		int key = (tdata->id << 16) | i;
+		struct test_obj_val key = {
+			.id = i,
+			.tid = tdata->id,
+		};
 
 		obj = rhashtable_lookup_fast(&ht, &key, test_rht_params);
-		if (obj && (tdata->objs[i].value == TEST_INSERT_FAIL)) {
-			pr_err("  found unexpected object %d\n", key);
+		if (obj && (tdata->objs[i].value.id == TEST_INSERT_FAIL)) {
+			pr_err("  found unexpected object %d-%d\n", key.tid, key.id);
 			err++;
-		} else if (!obj && (tdata->objs[i].value != TEST_INSERT_FAIL)) {
-			pr_err("  object %d not found!\n", key);
+		} else if (!obj && (tdata->objs[i].value.id != TEST_INSERT_FAIL)) {
+			pr_err("  object %d-%d not found!\n", key.tid, key.id);
 			err++;
-		} else if (obj && (obj->value != key)) {
-			pr_err("  wrong object returned (got %d, expected %d)\n",
-			       obj->value, key);
+		} else if (obj && memcmp(&obj->value, &key, sizeof(key))) {
+			pr_err("  wrong object returned (got %d-%d, expected %d-%d)\n",
+			       obj->value.tid, obj->value.id, key.tid, key.id);
 			err++;
 		}
 
@@ -272,7 +284,8 @@ static int threadfunc(void *data)
 		pr_err("  thread[%d]: down_interruptible failed\n", tdata->id);
 
 	for (i = 0; i < entries; i++) {
-		tdata->objs[i].value = (tdata->id << 16) | i;
+		tdata->objs[i].value.id = i;
+		tdata->objs[i].value.tid = tdata->id;
 		err = insert_retry(&ht, &tdata->objs[i].node, test_rht_params);
 		if (err > 0) {
 			insert_retries += err;
@@ -295,7 +308,7 @@ static int threadfunc(void *data)
 
 	for (step = 10; step > 0; step--) {
 		for (i = 0; i < entries; i += step) {
-			if (tdata->objs[i].value == TEST_INSERT_FAIL)
+			if (tdata->objs[i].value.id == TEST_INSERT_FAIL)
 				continue;
 			err = rhashtable_remove_fast(&ht, &tdata->objs[i].node,
 			                             test_rht_params);
@@ -304,7 +317,7 @@ static int threadfunc(void *data)
 				       tdata->id);
 				goto out;
 			}
-			tdata->objs[i].value = TEST_INSERT_FAIL;
+			tdata->objs[i].value.id = TEST_INSERT_FAIL;
 
 			cond_resched();
 		}
diff --git a/lib/test_sysctl.c b/lib/test_sysctl.c
new file mode 100644
index 000000000000..3dd801c1c85b
--- /dev/null
+++ b/lib/test_sysctl.c
@@ -0,0 +1,148 @@
+/*
+ * proc sysctl test driver
+ *
+ * Copyright (C) 2017 Luis R. Rodriguez <mcgrof@kernel.org>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the Free
+ * Software Foundation; either version 2 of the License, or at your option any
+ * later version; or, when distributed separately from the Linux kernel or
+ * when incorporated into other software packages, subject to the following
+ * license:
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of copyleft-next (version 0.3.1 or later) as published
+ * at http://copyleft-next.org/.
+ */
+
+/*
+ * This module provides an interface to the the proc sysctl interfaces.  This
+ * driver requires CONFIG_PROC_SYSCTL. It will not normally be loaded by the
+ * system unless explicitly requested by name. You can also build this driver
+ * into your kernel.
+ */
+
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
+#include <linux/init.h>
+#include <linux/list.h>
+#include <linux/module.h>
+#include <linux/printk.h>
+#include <linux/fs.h>
+#include <linux/miscdevice.h>
+#include <linux/slab.h>
+#include <linux/uaccess.h>
+#include <linux/async.h>
+#include <linux/delay.h>
+#include <linux/vmalloc.h>
+
+static int i_zero;
+static int i_one_hundred = 100;
+
+struct test_sysctl_data {
+	int int_0001;
+	int int_0002;
+	int int_0003[4];
+
+	unsigned int uint_0001;
+
+	char string_0001[65];
+};
+
+static struct test_sysctl_data test_data = {
+	.int_0001 = 60,
+	.int_0002 = 1,
+
+	.int_0003[0] = 0,
+	.int_0003[1] = 1,
+	.int_0003[2] = 2,
+	.int_0003[3] = 3,
+
+	.uint_0001 = 314,
+
+	.string_0001 = "(none)",
+};
+
+/* These are all under /proc/sys/debug/test_sysctl/ */
+static struct ctl_table test_table[] = {
+	{
+		.procname	= "int_0001",
+		.data		= &test_data.int_0001,
+		.maxlen		= sizeof(int),
+		.mode		= 0644,
+		.proc_handler	= proc_dointvec_minmax,
+		.extra1		= &i_zero,
+		.extra2         = &i_one_hundred,
+	},
+	{
+		.procname	= "int_0002",
+		.data		= &test_data.int_0002,
+		.maxlen		= sizeof(int),
+		.mode		= 0644,
+		.proc_handler	= proc_dointvec,
+	},
+	{
+		.procname	= "int_0003",
+		.data		= &test_data.int_0003,
+		.maxlen		= sizeof(test_data.int_0003),
+		.mode		= 0644,
+		.proc_handler	= proc_dointvec,
+	},
+	{
+		.procname	= "uint_0001",
+		.data		= &test_data.uint_0001,
+		.maxlen		= sizeof(unsigned int),
+		.mode		= 0644,
+		.proc_handler	= proc_douintvec,
+	},
+	{
+		.procname	= "string_0001",
+		.data		= &test_data.string_0001,
+		.maxlen		= sizeof(test_data.string_0001),
+		.mode		= 0644,
+		.proc_handler	= proc_dostring,
+	},
+	{ }
+};
+
+static struct ctl_table test_sysctl_table[] = {
+	{
+		.procname	= "test_sysctl",
+		.maxlen		= 0,
+		.mode		= 0555,
+		.child		= test_table,
+	},
+	{ }
+};
+
+static struct ctl_table test_sysctl_root_table[] = {
+	{
+		.procname	= "debug",
+		.maxlen		= 0,
+		.mode		= 0555,
+		.child		= test_sysctl_table,
+	},
+	{ }
+};
+
+static struct ctl_table_header *test_sysctl_header;
+
+static int __init test_sysctl_init(void)
+{
+	test_sysctl_header = register_sysctl_table(test_sysctl_root_table);
+	if (!test_sysctl_header)
+		return -ENOMEM;
+	return 0;
+}
+late_initcall(test_sysctl_init);
+
+static void __exit test_sysctl_exit(void)
+{
+	if (test_sysctl_header)
+		unregister_sysctl_table(test_sysctl_header);
+}
+
+module_exit(test_sysctl_exit);
+
+MODULE_AUTHOR("Luis R. Rodriguez <mcgrof@kernel.org>");
+MODULE_LICENSE("GPL");
diff --git a/lib/test_uuid.c b/lib/test_uuid.c
index 478c049630b5..cd819c397dc7 100644
--- a/lib/test_uuid.c
+++ b/lib/test_uuid.c
@@ -82,7 +82,7 @@ static void __init test_uuid_test(const struct test_uuid_data *data)
 		test_uuid_failed("conversion", false, true, data->uuid, NULL);
 
 	total_tests++;
-	if (uuid_equal(&data->be, &be)) {
+	if (!uuid_equal(&data->be, &be)) {
 		sprintf(buf, "%pUb", &be);
 		test_uuid_failed("cmp", false, true, data->uuid, buf);
 	}
diff --git a/mm/balloon_compaction.c b/mm/balloon_compaction.c
index 9075aa54e955..b06d9fe23a28 100644
--- a/mm/balloon_compaction.c
+++ b/mm/balloon_compaction.c
@@ -24,7 +24,7 @@ struct page *balloon_page_enqueue(struct balloon_dev_info *b_dev_info)
 {
 	unsigned long flags;
 	struct page *page = alloc_page(balloon_mapping_gfp_mask() |
-				__GFP_NOMEMALLOC | __GFP_NORETRY | __GFP_ZERO);
+				       __GFP_NOMEMALLOC | __GFP_NORETRY);
 	if (!page)
 		return NULL;
 
diff --git a/mm/cma_debug.c b/mm/cma_debug.c
index 595b757bef72..c03ccbc405a0 100644
--- a/mm/cma_debug.c
+++ b/mm/cma_debug.c
@@ -167,7 +167,7 @@ static void cma_debugfs_add_one(struct cma *cma, int idx)
 	char name[16];
 	int u32s;
 
-	sprintf(name, "cma-%s", cma->name);
+	scnprintf(name, sizeof(name), "cma-%s", cma->name);
 
 	tmp = debugfs_create_dir(name, cma_debugfs_root);
 
diff --git a/mm/debug.c b/mm/debug.c
index db1cd26d8752..5715448ab0b5 100644
--- a/mm/debug.c
+++ b/mm/debug.c
@@ -124,9 +124,7 @@ void dump_mm(const struct mm_struct *mm)
 #ifdef CONFIG_NUMA_BALANCING
 		"numa_next_scan %lu numa_scan_offset %lu numa_scan_seq %d\n"
 #endif
-#if defined(CONFIG_NUMA_BALANCING) || defined(CONFIG_COMPACTION)
 		"tlb_flush_pending %d\n"
-#endif
 		"def_flags: %#lx(%pGv)\n",
 
 		mm, mm->mmap, mm->vmacache_seqnum, mm->task_size,
@@ -158,9 +156,7 @@ void dump_mm(const struct mm_struct *mm)
 #ifdef CONFIG_NUMA_BALANCING
 		mm->numa_next_scan, mm->numa_scan_offset, mm->numa_scan_seq,
 #endif
-#if defined(CONFIG_NUMA_BALANCING) || defined(CONFIG_COMPACTION)
-		mm->tlb_flush_pending,
-#endif
+		atomic_read(&mm->tlb_flush_pending),
 		mm->def_flags, &mm->def_flags
 	);
 }
diff --git a/mm/huge_memory.c b/mm/huge_memory.c
index 86975dec0ba1..90731e3b7e58 100644
--- a/mm/huge_memory.c
+++ b/mm/huge_memory.c
@@ -32,6 +32,7 @@
 #include <linux/userfaultfd_k.h>
 #include <linux/page_idle.h>
 #include <linux/shmem_fs.h>
+#include <linux/oom.h>
 
 #include <asm/tlb.h>
 #include <asm/pgalloc.h>
@@ -550,6 +551,7 @@ static int __do_huge_pmd_anonymous_page(struct vm_fault *vmf, struct page *page,
 	struct mem_cgroup *memcg;
 	pgtable_t pgtable;
 	unsigned long haddr = vmf->address & HPAGE_PMD_MASK;
+	int ret = 0;
 
 	VM_BUG_ON_PAGE(!PageCompound(page), page);
 
@@ -561,9 +563,8 @@ static int __do_huge_pmd_anonymous_page(struct vm_fault *vmf, struct page *page,
 
 	pgtable = pte_alloc_one(vma->vm_mm, haddr);
 	if (unlikely(!pgtable)) {
-		mem_cgroup_cancel_charge(page, memcg, true);
-		put_page(page);
-		return VM_FAULT_OOM;
+		ret = VM_FAULT_OOM;
+		goto release;
 	}
 
 	clear_huge_page(page, haddr, HPAGE_PMD_NR);
@@ -576,13 +577,14 @@ static int __do_huge_pmd_anonymous_page(struct vm_fault *vmf, struct page *page,
 
 	vmf->ptl = pmd_lock(vma->vm_mm, vmf->pmd);
 	if (unlikely(!pmd_none(*vmf->pmd))) {
-		spin_unlock(vmf->ptl);
-		mem_cgroup_cancel_charge(page, memcg, true);
-		put_page(page);
-		pte_free(vma->vm_mm, pgtable);
+		goto unlock_release;
 	} else {
 		pmd_t entry;
 
+		ret = check_stable_address_space(vma->vm_mm);
+		if (ret)
+			goto unlock_release;
+
 		/* Deliver the page fault to userland */
 		if (userfaultfd_missing(vma)) {
 			int ret;
@@ -610,6 +612,15 @@ static int __do_huge_pmd_anonymous_page(struct vm_fault *vmf, struct page *page,
 	}
 
 	return 0;
+unlock_release:
+	spin_unlock(vmf->ptl);
+release:
+	if (pgtable)
+		pte_free(vma->vm_mm, pgtable);
+	mem_cgroup_cancel_charge(page, memcg, true);
+	put_page(page);
+	return ret;
+
 }
 
 /*
@@ -688,7 +699,10 @@ int do_huge_pmd_anonymous_page(struct vm_fault *vmf)
 		ret = 0;
 		set = false;
 		if (pmd_none(*vmf->pmd)) {
-			if (userfaultfd_missing(vma)) {
+			ret = check_stable_address_space(vma->vm_mm);
+			if (ret) {
+				spin_unlock(vmf->ptl);
+			} else if (userfaultfd_missing(vma)) {
 				spin_unlock(vmf->ptl);
 				ret = handle_userfault(vmf, VM_UFFD_MISSING);
 				VM_BUG_ON(ret & VM_FAULT_FALLBACK);
@@ -1496,6 +1510,13 @@ int do_huge_pmd_numa_page(struct vm_fault *vmf, pmd_t pmd)
 	}
 
 	/*
+	 * The page_table_lock above provides a memory barrier
+	 * with change_protection_range.
+	 */
+	if (mm_tlb_flush_pending(vma->vm_mm))
+		flush_tlb_range(vma, haddr, haddr + HPAGE_PMD_SIZE);
+
+	/*
 	 * Migrate the THP to the requested node, returns with page unlocked
 	 * and access rights restored.
 	 */
diff --git a/mm/hugetlb.c b/mm/hugetlb.c
index 1e516520433d..31e207cb399b 100644
--- a/mm/hugetlb.c
+++ b/mm/hugetlb.c
@@ -1384,7 +1384,7 @@ static struct page *alloc_fresh_huge_page_node(struct hstate *h, int nid)
 
 	page = __alloc_pages_node(nid,
 		htlb_alloc_mask(h)|__GFP_COMP|__GFP_THISNODE|
-						__GFP_REPEAT|__GFP_NOWARN,
+						__GFP_RETRY_MAYFAIL|__GFP_NOWARN,
 		huge_page_order(h));
 	if (page) {
 		prep_new_huge_page(h, page, nid);
@@ -1525,7 +1525,7 @@ static struct page *__hugetlb_alloc_buddy_huge_page(struct hstate *h,
 {
 	int order = huge_page_order(h);
 
-	gfp_mask |= __GFP_COMP|__GFP_REPEAT|__GFP_NOWARN;
+	gfp_mask |= __GFP_COMP|__GFP_RETRY_MAYFAIL|__GFP_NOWARN;
 	if (nid == NUMA_NO_NODE)
 		nid = numa_mem_id();
 	return __alloc_pages_nodemask(gfp_mask, order, nid, nmask);
@@ -4062,9 +4062,9 @@ out:
 	return ret;
 out_release_unlock:
 	spin_unlock(ptl);
-out_release_nounlock:
 	if (vm_shared)
 		unlock_page(page);
+out_release_nounlock:
 	put_page(page);
 	goto out;
 }
@@ -4078,6 +4078,7 @@ long follow_hugetlb_page(struct mm_struct *mm, struct vm_area_struct *vma,
 	unsigned long vaddr = *position;
 	unsigned long remainder = *nr_pages;
 	struct hstate *h = hstate_vma(vma);
+	int err = -EFAULT;
 
 	while (vaddr < vma->vm_end && remainder) {
 		pte_t *pte;
@@ -4154,11 +4155,7 @@ long follow_hugetlb_page(struct mm_struct *mm, struct vm_area_struct *vma,
 			}
 			ret = hugetlb_fault(mm, vma, vaddr, fault_flags);
 			if (ret & VM_FAULT_ERROR) {
-				int err = vm_fault_to_errno(ret, flags);
-
-				if (err)
-					return err;
-
+				err = vm_fault_to_errno(ret, flags);
 				remainder = 0;
 				break;
 			}
@@ -4213,7 +4210,7 @@ same_page:
 	 */
 	*position = vaddr;
 
-	return i ? i : -EFAULT;
+	return i ? i : err;
 }
 
 #ifndef __HAVE_ARCH_FLUSH_HUGETLB_TLB_RANGE
diff --git a/mm/internal.h b/mm/internal.h
index 0e4f558412fb..4ef49fc55e58 100644
--- a/mm/internal.h
+++ b/mm/internal.h
@@ -23,7 +23,7 @@
  * hints such as HIGHMEM usage.
  */
 #define GFP_RECLAIM_MASK (__GFP_RECLAIM|__GFP_HIGH|__GFP_IO|__GFP_FS|\
-			__GFP_NOWARN|__GFP_REPEAT|__GFP_NOFAIL|\
+			__GFP_NOWARN|__GFP_RETRY_MAYFAIL|__GFP_NOFAIL|\
 			__GFP_NORETRY|__GFP_MEMALLOC|__GFP_NOMEMALLOC|\
 			__GFP_ATOMIC)
 
@@ -498,6 +498,7 @@ extern struct workqueue_struct *mm_percpu_wq;
 #ifdef CONFIG_ARCH_WANT_BATCHED_UNMAP_TLB_FLUSH
 void try_to_unmap_flush(void);
 void try_to_unmap_flush_dirty(void);
+void flush_tlb_batched_pending(struct mm_struct *mm);
 #else
 static inline void try_to_unmap_flush(void)
 {
@@ -505,7 +506,9 @@ static inline void try_to_unmap_flush(void)
 static inline void try_to_unmap_flush_dirty(void)
 {
 }
-
+static inline void flush_tlb_batched_pending(struct mm_struct *mm)
+{
+}
 #endif /* CONFIG_ARCH_WANT_BATCHED_UNMAP_TLB_FLUSH */
 
 extern const struct trace_print_flags pageflag_names[];
diff --git a/mm/kasan/report.c b/mm/kasan/report.c
index 04bb1d3eb9ec..6bcfb01ba038 100644
--- a/mm/kasan/report.c
+++ b/mm/kasan/report.c
@@ -401,6 +401,7 @@ void kasan_report(unsigned long addr, size_t size,
 	disable_trace_on_warning();
 
 	info.access_addr = (void *)addr;
+	info.first_bad_addr = (void *)addr;
 	info.access_size = size;
 	info.is_write = is_write;
 	info.ip = ip;
diff --git a/mm/ksm.c b/mm/ksm.c
index 4dc92f138786..db20f8436bc3 100644
--- a/mm/ksm.c
+++ b/mm/ksm.c
@@ -1038,7 +1038,8 @@ static int write_protect_page(struct vm_area_struct *vma, struct page *page,
 		goto out_unlock;
 
 	if (pte_write(*pvmw.pte) || pte_dirty(*pvmw.pte) ||
-	    (pte_protnone(*pvmw.pte) && pte_savedwrite(*pvmw.pte))) {
+	    (pte_protnone(*pvmw.pte) && pte_savedwrite(*pvmw.pte)) ||
+						mm_tlb_flush_pending(mm)) {
 		pte_t entry;
 
 		swapped = PageSwapCache(page);
diff --git a/mm/madvise.c b/mm/madvise.c
index 9976852f1e1c..47d8d8a25eae 100644
--- a/mm/madvise.c
+++ b/mm/madvise.c
@@ -320,6 +320,7 @@ static int madvise_free_pte_range(pmd_t *pmd, unsigned long addr,
 
 	tlb_remove_check_page_size_change(tlb, PAGE_SIZE);
 	orig_pte = pte = pte_offset_map_lock(mm, pmd, addr, &ptl);
+	flush_tlb_batched_pending(mm);
 	arch_enter_lazy_mmu_mode();
 	for (; addr != end; pte++, addr += PAGE_SIZE) {
 		ptent = *pte;
diff --git a/mm/memblock.c b/mm/memblock.c
index 2cb25fe4452c..bf14aea6ab70 100644
--- a/mm/memblock.c
+++ b/mm/memblock.c
@@ -285,31 +285,27 @@ static void __init_memblock memblock_remove_region(struct memblock_type *type, u
 }
 
 #ifdef CONFIG_ARCH_DISCARD_MEMBLOCK
-
-phys_addr_t __init_memblock get_allocated_memblock_reserved_regions_info(
-					phys_addr_t *addr)
-{
-	if (memblock.reserved.regions == memblock_reserved_init_regions)
-		return 0;
-
-	*addr = __pa(memblock.reserved.regions);
-
-	return PAGE_ALIGN(sizeof(struct memblock_region) *
-			  memblock.reserved.max);
-}
-
-phys_addr_t __init_memblock get_allocated_memblock_memory_regions_info(
-					phys_addr_t *addr)
+/**
+ * Discard memory and reserved arrays if they were allocated
+ */
+void __init memblock_discard(void)
 {
-	if (memblock.memory.regions == memblock_memory_init_regions)
-		return 0;
+	phys_addr_t addr, size;
 
-	*addr = __pa(memblock.memory.regions);
+	if (memblock.reserved.regions != memblock_reserved_init_regions) {
+		addr = __pa(memblock.reserved.regions);
+		size = PAGE_ALIGN(sizeof(struct memblock_region) *
+				  memblock.reserved.max);
+		__memblock_free_late(addr, size);
+	}
 
-	return PAGE_ALIGN(sizeof(struct memblock_region) *
-			  memblock.memory.max);
+	if (memblock.memory.regions == memblock_memory_init_regions) {
+		addr = __pa(memblock.memory.regions);
+		size = PAGE_ALIGN(sizeof(struct memblock_region) *
+				  memblock.memory.max);
+		__memblock_free_late(addr, size);
+	}
 }
-
 #endif
 
 /**
diff --git a/mm/memcontrol.c b/mm/memcontrol.c
index 3df3c04d73ab..e09741af816f 100644
--- a/mm/memcontrol.c
+++ b/mm/memcontrol.c
@@ -1611,9 +1611,13 @@ cleanup:
  * @page: the page
  *
  * This function protects unlocked LRU pages from being moved to
- * another cgroup and stabilizes their page->mem_cgroup binding.
+ * another cgroup.
+ *
+ * It ensures lifetime of the returned memcg. Caller is responsible
+ * for the lifetime of the page; __unlock_page_memcg() is available
+ * when @page might get freed inside the locked section.
  */
-void lock_page_memcg(struct page *page)
+struct mem_cgroup *lock_page_memcg(struct page *page)
 {
 	struct mem_cgroup *memcg;
 	unsigned long flags;
@@ -1622,18 +1626,24 @@ void lock_page_memcg(struct page *page)
 	 * The RCU lock is held throughout the transaction.  The fast
 	 * path can get away without acquiring the memcg->move_lock
 	 * because page moving starts with an RCU grace period.
-	 */
+	 *
+	 * The RCU lock also protects the memcg from being freed when
+	 * the page state that is going to change is the only thing
+	 * preventing the page itself from being freed. E.g. writeback
+	 * doesn't hold a page reference and relies on PG_writeback to
+	 * keep off truncation, migration and so forth.
+         */
 	rcu_read_lock();
 
 	if (mem_cgroup_disabled())
-		return;
+		return NULL;
 again:
 	memcg = page->mem_cgroup;
 	if (unlikely(!memcg))
-		return;
+		return NULL;
 
 	if (atomic_read(&memcg->moving_account) <= 0)
-		return;
+		return memcg;
 
 	spin_lock_irqsave(&memcg->move_lock, flags);
 	if (memcg != page->mem_cgroup) {
@@ -1649,18 +1659,18 @@ again:
 	memcg->move_lock_task = current;
 	memcg->move_lock_flags = flags;
 
-	return;
+	return memcg;
 }
 EXPORT_SYMBOL(lock_page_memcg);
 
 /**
- * unlock_page_memcg - unlock a page->mem_cgroup binding
- * @page: the page
+ * __unlock_page_memcg - unlock and unpin a memcg
+ * @memcg: the memcg
+ *
+ * Unlock and unpin a memcg returned by lock_page_memcg().
  */
-void unlock_page_memcg(struct page *page)
+void __unlock_page_memcg(struct mem_cgroup *memcg)
 {
-	struct mem_cgroup *memcg = page->mem_cgroup;
-
 	if (memcg && memcg->move_lock_task == current) {
 		unsigned long flags = memcg->move_lock_flags;
 
@@ -1672,6 +1682,15 @@ void unlock_page_memcg(struct page *page)
 
 	rcu_read_unlock();
 }
+
+/**
+ * unlock_page_memcg - unlock a page->mem_cgroup binding
+ * @page: the page
+ */
+void unlock_page_memcg(struct page *page)
+{
+	__unlock_page_memcg(page->mem_cgroup);
+}
 EXPORT_SYMBOL(unlock_page_memcg);
 
 /*
diff --git a/mm/memory.c b/mm/memory.c
index cbb57194687e..fe2fba27ded2 100644
--- a/mm/memory.c
+++ b/mm/memory.c
@@ -68,6 +68,7 @@
 #include <linux/debugfs.h>
 #include <linux/userfaultfd_k.h>
 #include <linux/dax.h>
+#include <linux/oom.h>
 
 #include <asm/io.h>
 #include <asm/mmu_context.h>
@@ -215,12 +216,8 @@ static bool tlb_next_batch(struct mmu_gather *tlb)
 	return true;
 }
 
-/* tlb_gather_mmu
- *	Called to initialize an (on-stack) mmu_gather structure for page-table
- *	tear-down from @mm. The @fullmm argument is used when @mm is without
- *	users and we're going to destroy the full address space (exit/execve).
- */
-void tlb_gather_mmu(struct mmu_gather *tlb, struct mm_struct *mm, unsigned long start, unsigned long end)
+void arch_tlb_gather_mmu(struct mmu_gather *tlb, struct mm_struct *mm,
+				unsigned long start, unsigned long end)
 {
 	tlb->mm = mm;
 
@@ -275,10 +272,14 @@ void tlb_flush_mmu(struct mmu_gather *tlb)
  *	Called at the end of the shootdown operation to free up any resources
  *	that were required.
  */
-void tlb_finish_mmu(struct mmu_gather *tlb, unsigned long start, unsigned long end)
+void arch_tlb_finish_mmu(struct mmu_gather *tlb,
+		unsigned long start, unsigned long end, bool force)
 {
 	struct mmu_gather_batch *batch, *next;
 
+	if (force)
+		__tlb_adjust_range(tlb, start, end - start);
+
 	tlb_flush_mmu(tlb);
 
 	/* keep the page table cache within bounds */
@@ -398,6 +399,34 @@ void tlb_remove_table(struct mmu_gather *tlb, void *table)
 
 #endif /* CONFIG_HAVE_RCU_TABLE_FREE */
 
+/* tlb_gather_mmu
+ *	Called to initialize an (on-stack) mmu_gather structure for page-table
+ *	tear-down from @mm. The @fullmm argument is used when @mm is without
+ *	users and we're going to destroy the full address space (exit/execve).
+ */
+void tlb_gather_mmu(struct mmu_gather *tlb, struct mm_struct *mm,
+			unsigned long start, unsigned long end)
+{
+	arch_tlb_gather_mmu(tlb, mm, start, end);
+	inc_tlb_flush_pending(tlb->mm);
+}
+
+void tlb_finish_mmu(struct mmu_gather *tlb,
+		unsigned long start, unsigned long end)
+{
+	/*
+	 * If there are parallel threads are doing PTE changes on same range
+	 * under non-exclusive lock(e.g., mmap_sem read-side) but defer TLB
+	 * flush by batching, a thread has stable TLB entry can fail to flush
+	 * the TLB by observing pte_none|!pte_dirty, for example so flush TLB
+	 * forcefully if we detect parallel PTE batching threads.
+	 */
+	bool force = mm_tlb_flush_nested(tlb->mm);
+
+	arch_tlb_finish_mmu(tlb, start, end, force);
+	dec_tlb_flush_pending(tlb->mm);
+}
+
 /*
  * Note: this doesn't free the actual pages themselves. That
  * has been handled earlier when unmapping all the memory regions.
@@ -1197,6 +1226,7 @@ again:
 	init_rss_vec(rss);
 	start_pte = pte_offset_map_lock(mm, pmd, addr, &ptl);
 	pte = start_pte;
+	flush_tlb_batched_pending(mm);
 	arch_enter_lazy_mmu_mode();
 	do {
 		pte_t ptent = *pte;
@@ -2864,6 +2894,7 @@ static int do_anonymous_page(struct vm_fault *vmf)
 	struct vm_area_struct *vma = vmf->vma;
 	struct mem_cgroup *memcg;
 	struct page *page;
+	int ret = 0;
 	pte_t entry;
 
 	/* File mapping without ->vm_ops ? */
@@ -2896,6 +2927,9 @@ static int do_anonymous_page(struct vm_fault *vmf)
 				vmf->address, &vmf->ptl);
 		if (!pte_none(*vmf->pte))
 			goto unlock;
+		ret = check_stable_address_space(vma->vm_mm);
+		if (ret)
+			goto unlock;
 		/* Deliver the page fault to userland, check inside PT lock */
 		if (userfaultfd_missing(vma)) {
 			pte_unmap_unlock(vmf->pte, vmf->ptl);
@@ -2930,6 +2964,10 @@ static int do_anonymous_page(struct vm_fault *vmf)
 	if (!pte_none(*vmf->pte))
 		goto release;
 
+	ret = check_stable_address_space(vma->vm_mm);
+	if (ret)
+		goto release;
+
 	/* Deliver the page fault to userland, check inside PT lock */
 	if (userfaultfd_missing(vma)) {
 		pte_unmap_unlock(vmf->pte, vmf->ptl);
@@ -2949,7 +2987,7 @@ setpte:
 	update_mmu_cache(vma, vmf->address, vmf->pte);
 unlock:
 	pte_unmap_unlock(vmf->pte, vmf->ptl);
-	return 0;
+	return ret;
 release:
 	mem_cgroup_cancel_charge(page, memcg, false);
 	put_page(page);
@@ -3223,7 +3261,7 @@ int alloc_set_pte(struct vm_fault *vmf, struct mem_cgroup *memcg,
 int finish_fault(struct vm_fault *vmf)
 {
 	struct page *page;
-	int ret;
+	int ret = 0;
 
 	/* Did we COW the page? */
 	if ((vmf->flags & FAULT_FLAG_WRITE) &&
@@ -3231,7 +3269,15 @@ int finish_fault(struct vm_fault *vmf)
 		page = vmf->cow_page;
 	else
 		page = vmf->page;
-	ret = alloc_set_pte(vmf, vmf->memcg, page);
+
+	/*
+	 * check even for read faults because we might have lost our CoWed
+	 * page
+	 */
+	if (!(vmf->vma->vm_flags & VM_SHARED))
+		ret = check_stable_address_space(vmf->vma->vm_mm);
+	if (!ret)
+		ret = alloc_set_pte(vmf, vmf->memcg, page);
 	if (vmf->pte)
 		pte_unmap_unlock(vmf->pte, vmf->ptl);
 	return ret;
@@ -3591,7 +3637,7 @@ out:
 	return 0;
 }
 
-static int create_huge_pmd(struct vm_fault *vmf)
+static inline int create_huge_pmd(struct vm_fault *vmf)
 {
 	if (vma_is_anonymous(vmf->vma))
 		return do_huge_pmd_anonymous_page(vmf);
@@ -3871,19 +3917,6 @@ int handle_mm_fault(struct vm_area_struct *vma, unsigned long address,
 			mem_cgroup_oom_synchronize(false);
 	}
 
-	/*
-	 * This mm has been already reaped by the oom reaper and so the
-	 * refault cannot be trusted in general. Anonymous refaults would
-	 * lose data and give a zero page instead e.g. This is especially
-	 * problem for use_mm() because regular tasks will just die and
-	 * the corrupted data will not be visible anywhere while kthread
-	 * will outlive the oom victim and potentially propagate the date
-	 * further.
-	 */
-	if (unlikely((current->flags & PF_KTHREAD) && !(ret & VM_FAULT_ERROR)
-				&& test_bit(MMF_UNSTABLE, &vma->vm_mm->flags)))
-		ret = VM_FAULT_SIGBUS;
-
 	return ret;
 }
 EXPORT_SYMBOL_GPL(handle_mm_fault);
diff --git a/mm/mempolicy.c b/mm/mempolicy.c
index 7d8e56214ac0..618ab125228b 100644
--- a/mm/mempolicy.c
+++ b/mm/mempolicy.c
@@ -861,11 +861,6 @@ static long do_get_mempolicy(int *policy, nodemask_t *nmask,
 		*policy |= (pol->flags & MPOL_MODE_FLAGS);
 	}
 
-	if (vma) {
-		up_read(&current->mm->mmap_sem);
-		vma = NULL;
-	}
-
 	err = 0;
 	if (nmask) {
 		if (mpol_store_user_nodemask(pol)) {
@@ -1078,7 +1073,8 @@ static struct page *new_page(struct page *page, unsigned long start, int **x)
 	/*
 	 * if !vma, alloc_page_vma() will use task or system default policy
 	 */
-	return alloc_page_vma(GFP_HIGHUSER_MOVABLE, vma, address);
+	return alloc_page_vma(GFP_HIGHUSER_MOVABLE | __GFP_RETRY_MAYFAIL,
+			vma, address);
 }
 #else
 
diff --git a/mm/migrate.c b/mm/migrate.c
index 627671551873..e84eeb4e4356 100644
--- a/mm/migrate.c
+++ b/mm/migrate.c
@@ -41,6 +41,7 @@
 #include <linux/page_idle.h>
 #include <linux/page_owner.h>
 #include <linux/sched/mm.h>
+#include <linux/ptrace.h>
 
 #include <asm/tlbflush.h>
 
@@ -1652,7 +1653,6 @@ SYSCALL_DEFINE6(move_pages, pid_t, pid, unsigned long, nr_pages,
 		const int __user *, nodes,
 		int __user *, status, int, flags)
 {
-	const struct cred *cred = current_cred(), *tcred;
 	struct task_struct *task;
 	struct mm_struct *mm;
 	int err;
@@ -1676,14 +1676,9 @@ SYSCALL_DEFINE6(move_pages, pid_t, pid, unsigned long, nr_pages,
 
 	/*
 	 * Check if this process has the right to modify the specified
-	 * process. The right exists if the process has administrative
-	 * capabilities, superuser privileges or the same
-	 * userid as the target process.
+	 * process. Use the regular "ptrace_may_access()" checks.
 	 */
-	tcred = __task_cred(task);
-	if (!uid_eq(cred->euid, tcred->suid) && !uid_eq(cred->euid, tcred->uid) &&
-	    !uid_eq(cred->uid,  tcred->suid) && !uid_eq(cred->uid,  tcred->uid) &&
-	    !capable(CAP_SYS_NICE)) {
+	if (!ptrace_may_access(task, PTRACE_MODE_READ_REALCREDS)) {
 		rcu_read_unlock();
 		err = -EPERM;
 		goto out;
@@ -1937,12 +1932,6 @@ int migrate_misplaced_transhuge_page(struct mm_struct *mm,
 		put_page(new_page);
 		goto out_fail;
 	}
-	/*
-	 * We are not sure a pending tlb flush here is for a huge page
-	 * mapping or not. Hence use the tlb range variant
-	 */
-	if (mm_tlb_flush_pending(mm))
-		flush_tlb_range(vma, mmun_start, mmun_end);
 
 	/* Prepare a page as a migration target */
 	__SetPageLocked(new_page);
diff --git a/mm/mmap.c b/mm/mmap.c
index 7fa6759322d1..f19efcf75418 100644
--- a/mm/mmap.c
+++ b/mm/mmap.c
@@ -2231,7 +2231,7 @@ int expand_upwards(struct vm_area_struct *vma, unsigned long address)
 
 	/* Guard against exceeding limits of the address space. */
 	address &= PAGE_MASK;
-	if (address >= TASK_SIZE)
+	if (address >= (TASK_SIZE & PAGE_MASK))
 		return -ENOMEM;
 	address += PAGE_SIZE;
 
diff --git a/mm/mprotect.c b/mm/mprotect.c
index 1a8c9ca83e48..bd0f409922cb 100644
--- a/mm/mprotect.c
+++ b/mm/mprotect.c
@@ -64,6 +64,7 @@ static unsigned long change_pte_range(struct vm_area_struct *vma, pmd_t *pmd,
 	    atomic_read(&vma->vm_mm->mm_users) == 1)
 		target_node = numa_node_id();
 
+	flush_tlb_batched_pending(vma->vm_mm);
 	arch_enter_lazy_mmu_mode();
 	do {
 		oldpte = *pte;
@@ -243,7 +244,7 @@ static unsigned long change_protection_range(struct vm_area_struct *vma,
 	BUG_ON(addr >= end);
 	pgd = pgd_offset(mm, addr);
 	flush_cache_range(vma, addr, end);
-	set_tlb_flush_pending(mm);
+	inc_tlb_flush_pending(mm);
 	do {
 		next = pgd_addr_end(addr, end);
 		if (pgd_none_or_clear_bad(pgd))
@@ -255,7 +256,7 @@ static unsigned long change_protection_range(struct vm_area_struct *vma,
 	/* Only flush the TLB if we actually modified any entries: */
 	if (pages)
 		flush_tlb_range(vma, start, end);
-	clear_tlb_flush_pending(mm);
+	dec_tlb_flush_pending(mm);
 
 	return pages;
 }
diff --git a/mm/mremap.c b/mm/mremap.c
index cd8a1b199ef9..3f23715d3c69 100644
--- a/mm/mremap.c
+++ b/mm/mremap.c
@@ -152,6 +152,7 @@ static void move_ptes(struct vm_area_struct *vma, pmd_t *old_pmd,
 	new_ptl = pte_lockptr(mm, new_pmd);
 	if (new_ptl != old_ptl)
 		spin_lock_nested(new_ptl, SINGLE_DEPTH_NESTING);
+	flush_tlb_batched_pending(vma->vm_mm);
 	arch_enter_lazy_mmu_mode();
 
 	for (; old_addr < old_end; old_pte++, old_addr += PAGE_SIZE,
@@ -428,6 +429,7 @@ static struct vm_area_struct *vma_to_resize(unsigned long addr,
 static unsigned long mremap_to(unsigned long addr, unsigned long old_len,
 		unsigned long new_addr, unsigned long new_len, bool *locked,
 		struct vm_userfaultfd_ctx *uf,
+		struct list_head *uf_unmap_early,
 		struct list_head *uf_unmap)
 {
 	struct mm_struct *mm = current->mm;
@@ -446,7 +448,7 @@ static unsigned long mremap_to(unsigned long addr, unsigned long old_len,
 	if (addr + old_len > new_addr && new_addr + new_len > addr)
 		goto out;
 
-	ret = do_munmap(mm, new_addr, new_len, NULL);
+	ret = do_munmap(mm, new_addr, new_len, uf_unmap_early);
 	if (ret)
 		goto out;
 
@@ -514,6 +516,7 @@ SYSCALL_DEFINE5(mremap, unsigned long, addr, unsigned long, old_len,
 	unsigned long charged = 0;
 	bool locked = false;
 	struct vm_userfaultfd_ctx uf = NULL_VM_UFFD_CTX;
+	LIST_HEAD(uf_unmap_early);
 	LIST_HEAD(uf_unmap);
 
 	if (flags & ~(MREMAP_FIXED | MREMAP_MAYMOVE))
@@ -541,7 +544,7 @@ SYSCALL_DEFINE5(mremap, unsigned long, addr, unsigned long, old_len,
 
 	if (flags & MREMAP_FIXED) {
 		ret = mremap_to(addr, old_len, new_addr, new_len,
-				&locked, &uf, &uf_unmap);
+				&locked, &uf, &uf_unmap_early, &uf_unmap);
 		goto out;
 	}
 
@@ -621,6 +624,7 @@ out:
 	up_write(&current->mm->mmap_sem);
 	if (locked && new_len > old_len)
 		mm_populate(new_addr + old_len, new_len - old_len);
+	userfaultfd_unmap_complete(mm, &uf_unmap_early);
 	mremap_userfaultfd_complete(&uf, addr, new_addr, old_len);
 	userfaultfd_unmap_complete(mm, &uf_unmap);
 	return ret;
diff --git a/mm/nobootmem.c b/mm/nobootmem.c
index 36454d0f96ee..3637809a18d0 100644
--- a/mm/nobootmem.c
+++ b/mm/nobootmem.c
@@ -146,22 +146,6 @@ static unsigned long __init free_low_memory_core_early(void)
 				NULL)
 		count += __free_memory_core(start, end);
 
-#ifdef CONFIG_ARCH_DISCARD_MEMBLOCK
-	{
-		phys_addr_t size;
-
-		/* Free memblock.reserved array if it was allocated */
-		size = get_allocated_memblock_reserved_regions_info(&start);
-		if (size)
-			count += __free_memory_core(start, start + size);
-
-		/* Free memblock.memory array if it was allocated */
-		size = get_allocated_memblock_memory_regions_info(&start);
-		if (size)
-			count += __free_memory_core(start, start + size);
-	}
-#endif
-
 	return count;
 }
 
diff --git a/mm/page-writeback.c b/mm/page-writeback.c
index 0b60cc7ddac2..bf050ab025b7 100644
--- a/mm/page-writeback.c
+++ b/mm/page-writeback.c
@@ -601,7 +601,7 @@ static inline void __wb_writeout_inc(struct bdi_writeback *wb)
 {
 	struct wb_domain *cgdom;
 
-	__inc_wb_stat(wb, WB_WRITTEN);
+	inc_wb_stat(wb, WB_WRITTEN);
 	wb_domain_writeout_inc(&global_wb_domain, &wb->completions,
 			       wb->bdi->max_prop_frac);
 
@@ -2435,8 +2435,8 @@ void account_page_dirtied(struct page *page, struct address_space *mapping)
 		__inc_lruvec_page_state(page, NR_FILE_DIRTY);
 		__inc_zone_page_state(page, NR_ZONE_WRITE_PENDING);
 		__inc_node_page_state(page, NR_DIRTIED);
-		__inc_wb_stat(wb, WB_RECLAIMABLE);
-		__inc_wb_stat(wb, WB_DIRTIED);
+		inc_wb_stat(wb, WB_RECLAIMABLE);
+		inc_wb_stat(wb, WB_DIRTIED);
 		task_io_account_write(PAGE_SIZE);
 		current->nr_dirtied++;
 		this_cpu_inc(bdp_ratelimits);
@@ -2724,9 +2724,12 @@ EXPORT_SYMBOL(clear_page_dirty_for_io);
 int test_clear_page_writeback(struct page *page)
 {
 	struct address_space *mapping = page_mapping(page);
+	struct mem_cgroup *memcg;
+	struct lruvec *lruvec;
 	int ret;
 
-	lock_page_memcg(page);
+	memcg = lock_page_memcg(page);
+	lruvec = mem_cgroup_page_lruvec(page, page_pgdat(page));
 	if (mapping && mapping_use_writeback_tags(mapping)) {
 		struct inode *inode = mapping->host;
 		struct backing_dev_info *bdi = inode_to_bdi(inode);
@@ -2741,7 +2744,7 @@ int test_clear_page_writeback(struct page *page)
 			if (bdi_cap_account_writeback(bdi)) {
 				struct bdi_writeback *wb = inode_to_wb(inode);
 
-				__dec_wb_stat(wb, WB_WRITEBACK);
+				dec_wb_stat(wb, WB_WRITEBACK);
 				__wb_writeout_inc(wb);
 			}
 		}
@@ -2754,12 +2757,18 @@ int test_clear_page_writeback(struct page *page)
 	} else {
 		ret = TestClearPageWriteback(page);
 	}
+	/*
+	 * NOTE: Page might be free now! Writeback doesn't hold a page
+	 * reference on its own, it relies on truncation to wait for
+	 * the clearing of PG_writeback. The below can only access
+	 * page state that is static across allocation cycles.
+	 */
 	if (ret) {
-		dec_lruvec_page_state(page, NR_WRITEBACK);
+		dec_lruvec_state(lruvec, NR_WRITEBACK);
 		dec_zone_page_state(page, NR_ZONE_WRITE_PENDING);
 		inc_node_page_state(page, NR_WRITTEN);
 	}
-	unlock_page_memcg(page);
+	__unlock_page_memcg(memcg);
 	return ret;
 }
 
@@ -2786,7 +2795,7 @@ int __test_set_page_writeback(struct page *page, bool keep_write)
 						page_index(page),
 						PAGECACHE_TAG_WRITEBACK);
 			if (bdi_cap_account_writeback(bdi))
-				__inc_wb_stat(inode_to_wb(inode), WB_WRITEBACK);
+				inc_wb_stat(inode_to_wb(inode), WB_WRITEBACK);
 
 			/*
 			 * We can come through here when swapping anonymous
diff --git a/mm/page_alloc.c b/mm/page_alloc.c
index 64b7d82a9b1a..1bad301820c7 100644
--- a/mm/page_alloc.c
+++ b/mm/page_alloc.c
@@ -1584,6 +1584,10 @@ void __init page_alloc_init_late(void)
 	/* Reinit limits that are based on free pages after the kernel is up */
 	files_maxfiles_init();
 #endif
+#ifdef CONFIG_ARCH_DISCARD_MEMBLOCK
+	/* Discard memblock private memory */
+	memblock_discard();
+#endif
 
 	for_each_populated_zone(zone)
 		set_zone_contiguous(zone);
@@ -3284,6 +3288,14 @@ __alloc_pages_may_oom(gfp_t gfp_mask, unsigned int order,
 	/* The OOM killer will not help higher order allocs */
 	if (order > PAGE_ALLOC_COSTLY_ORDER)
 		goto out;
+	/*
+	 * We have already exhausted all our reclaim opportunities without any
+	 * success so it is time to admit defeat. We will skip the OOM killer
+	 * because it is very likely that the caller has a more reasonable
+	 * fallback than shooting a random task.
+	 */
+	if (gfp_mask & __GFP_RETRY_MAYFAIL)
+		goto out;
 	/* The OOM killer does not needlessly kill tasks for lowmem */
 	if (ac->high_zoneidx < ZONE_NORMAL)
 		goto out;
@@ -3413,7 +3425,7 @@ should_compact_retry(struct alloc_context *ac, int order, int alloc_flags,
 	}
 
 	/*
-	 * !costly requests are much more important than __GFP_REPEAT
+	 * !costly requests are much more important than __GFP_RETRY_MAYFAIL
 	 * costly ones because they are de facto nofail and invoke OOM
 	 * killer to move on while costly can fail and users are ready
 	 * to cope with that. 1/4 retries is rather arbitrary but we
@@ -3920,9 +3932,9 @@ retry:
 
 	/*
 	 * Do not retry costly high order allocations unless they are
-	 * __GFP_REPEAT
+	 * __GFP_RETRY_MAYFAIL
 	 */
-	if (costly_order && !(gfp_mask & __GFP_REPEAT))
+	if (costly_order && !(gfp_mask & __GFP_RETRY_MAYFAIL))
 		goto nopage;
 
 	if (should_reclaim_retry(gfp_mask, order, ac, alloc_flags,
@@ -4450,8 +4462,9 @@ long si_mem_available(void)
 	 * Part of the reclaimable slab consists of items that are in use,
 	 * and cannot be freed. Cap this estimate at the low watermark.
 	 */
-	available += global_page_state(NR_SLAB_RECLAIMABLE) -
-		     min(global_page_state(NR_SLAB_RECLAIMABLE) / 2, wmark_low);
+	available += global_node_page_state(NR_SLAB_RECLAIMABLE) -
+		     min(global_node_page_state(NR_SLAB_RECLAIMABLE) / 2,
+			 wmark_low);
 
 	if (available < 0)
 		available = 0;
@@ -4594,8 +4607,8 @@ void show_free_areas(unsigned int filter, nodemask_t *nodemask)
 		global_node_page_state(NR_FILE_DIRTY),
 		global_node_page_state(NR_WRITEBACK),
 		global_node_page_state(NR_UNSTABLE_NFS),
-		global_page_state(NR_SLAB_RECLAIMABLE),
-		global_page_state(NR_SLAB_UNRECLAIMABLE),
+		global_node_page_state(NR_SLAB_RECLAIMABLE),
+		global_node_page_state(NR_SLAB_UNRECLAIMABLE),
 		global_node_page_state(NR_FILE_MAPPED),
 		global_node_page_state(NR_SHMEM),
 		global_page_state(NR_PAGETABLE),
@@ -4883,9 +4896,11 @@ int numa_zonelist_order_handler(struct ctl_table *table, int write,
 				NUMA_ZONELIST_ORDER_LEN);
 			user_zonelist_order = oldval;
 		} else if (oldval != user_zonelist_order) {
+			mem_hotplug_begin();
 			mutex_lock(&zonelists_mutex);
 			build_all_zonelists(NULL, NULL);
 			mutex_unlock(&zonelists_mutex);
+			mem_hotplug_done();
 		}
 	}
 out:
@@ -7658,7 +7673,7 @@ int alloc_contig_range(unsigned long start, unsigned long end,
 
 	/* Make sure the range is really isolated. */
 	if (test_pages_isolated(outer_start, end, false)) {
-		pr_info("%s: [%lx, %lx) PFNs busy\n",
+		pr_info_ratelimited("%s: [%lx, %lx) PFNs busy\n",
 			__func__, outer_start, end);
 		ret = -EBUSY;
 		goto done;
diff --git a/mm/page_io.c b/mm/page_io.c
index b6c4ac388209..5f61b54ee1f3 100644
--- a/mm/page_io.c
+++ b/mm/page_io.c
@@ -22,6 +22,7 @@
 #include <linux/frontswap.h>
 #include <linux/blkdev.h>
 #include <linux/uio.h>
+#include <linux/sched/task.h>
 #include <asm/pgtable.h>
 
 static struct bio *get_swap_bio(gfp_t gfp_flags,
@@ -136,6 +137,7 @@ out:
 	WRITE_ONCE(bio->bi_private, NULL);
 	bio_put(bio);
 	wake_up_process(waiter);
+	put_task_struct(waiter);
 }
 
 int generic_swapfile_activate(struct swap_info_struct *sis,
@@ -378,6 +380,11 @@ int swap_readpage(struct page *page, bool do_poll)
 		goto out;
 	}
 	bdev = bio->bi_bdev;
+	/*
+	 * Keep this task valid during swap readpage because the oom killer may
+	 * attempt to access it in the page fault retry time check.
+	 */
+	get_task_struct(current);
 	bio->bi_private = current;
 	bio_set_op_attrs(bio, REQ_OP_READ, 0);
 	count_vm_event(PSWPIN);
diff --git a/mm/rmap.c b/mm/rmap.c
index ced14f1af6dc..c1286d47aa1f 100644
--- a/mm/rmap.c
+++ b/mm/rmap.c
@@ -605,6 +605,13 @@ static void set_tlb_ubc_flush_pending(struct mm_struct *mm, bool writable)
 	tlb_ubc->flush_required = true;
 
 	/*
+	 * Ensure compiler does not re-order the setting of tlb_flush_batched
+	 * before the PTE is cleared.
+	 */
+	barrier();
+	mm->tlb_flush_batched = true;
+
+	/*
 	 * If the PTE was dirty then it's best to assume it's writable. The
 	 * caller must use try_to_unmap_flush_dirty() or try_to_unmap_flush()
 	 * before the page is queued for IO.
@@ -631,6 +638,35 @@ static bool should_defer_flush(struct mm_struct *mm, enum ttu_flags flags)
 
 	return should_defer;
 }
+
+/*
+ * Reclaim unmaps pages under the PTL but do not flush the TLB prior to
+ * releasing the PTL if TLB flushes are batched. It's possible for a parallel
+ * operation such as mprotect or munmap to race between reclaim unmapping
+ * the page and flushing the page. If this race occurs, it potentially allows
+ * access to data via a stale TLB entry. Tracking all mm's that have TLB
+ * batching in flight would be expensive during reclaim so instead track
+ * whether TLB batching occurred in the past and if so then do a flush here
+ * if required. This will cost one additional flush per reclaim cycle paid
+ * by the first operation at risk such as mprotect and mumap.
+ *
+ * This must be called under the PTL so that an access to tlb_flush_batched
+ * that is potentially a "reclaim vs mprotect/munmap/etc" race will synchronise
+ * via the PTL.
+ */
+void flush_tlb_batched_pending(struct mm_struct *mm)
+{
+	if (mm->tlb_flush_batched) {
+		flush_tlb_mm(mm);
+
+		/*
+		 * Do not allow the compiler to re-order the clearing of
+		 * tlb_flush_batched before the tlb is flushed.
+		 */
+		barrier();
+		mm->tlb_flush_batched = false;
+	}
+}
 #else
 static void set_tlb_ubc_flush_pending(struct mm_struct *mm, bool writable)
 {
@@ -852,10 +888,10 @@ static bool page_mkclean_one(struct page *page, struct vm_area_struct *vma,
 		.flags = PVMW_SYNC,
 	};
 	int *cleaned = arg;
+	bool invalidation_needed = false;
 
 	while (page_vma_mapped_walk(&pvmw)) {
 		int ret = 0;
-		address = pvmw.address;
 		if (pvmw.pte) {
 			pte_t entry;
 			pte_t *pte = pvmw.pte;
@@ -863,11 +899,11 @@ static bool page_mkclean_one(struct page *page, struct vm_area_struct *vma,
 			if (!pte_dirty(*pte) && !pte_write(*pte))
 				continue;
 
-			flush_cache_page(vma, address, pte_pfn(*pte));
-			entry = ptep_clear_flush(vma, address, pte);
+			flush_cache_page(vma, pvmw.address, pte_pfn(*pte));
+			entry = ptep_clear_flush(vma, pvmw.address, pte);
 			entry = pte_wrprotect(entry);
 			entry = pte_mkclean(entry);
-			set_pte_at(vma->vm_mm, address, pte, entry);
+			set_pte_at(vma->vm_mm, pvmw.address, pte, entry);
 			ret = 1;
 		} else {
 #ifdef CONFIG_TRANSPARENT_HUGE_PAGECACHE
@@ -877,11 +913,11 @@ static bool page_mkclean_one(struct page *page, struct vm_area_struct *vma,
 			if (!pmd_dirty(*pmd) && !pmd_write(*pmd))
 				continue;
 
-			flush_cache_page(vma, address, page_to_pfn(page));
-			entry = pmdp_huge_clear_flush(vma, address, pmd);
+			flush_cache_page(vma, pvmw.address, page_to_pfn(page));
+			entry = pmdp_huge_clear_flush(vma, pvmw.address, pmd);
 			entry = pmd_wrprotect(entry);
 			entry = pmd_mkclean(entry);
-			set_pmd_at(vma->vm_mm, address, pmd, entry);
+			set_pmd_at(vma->vm_mm, pvmw.address, pmd, entry);
 			ret = 1;
 #else
 			/* unexpected pmd-mapped page? */
@@ -890,11 +926,16 @@ static bool page_mkclean_one(struct page *page, struct vm_area_struct *vma,
 		}
 
 		if (ret) {
-			mmu_notifier_invalidate_page(vma->vm_mm, address);
 			(*cleaned)++;
+			invalidation_needed = true;
 		}
 	}
 
+	if (invalidation_needed) {
+		mmu_notifier_invalidate_range(vma->vm_mm, address,
+				address + (1UL << compound_order(page)));
+	}
+
 	return true;
 }
 
@@ -1287,7 +1328,7 @@ static bool try_to_unmap_one(struct page *page, struct vm_area_struct *vma,
 	};
 	pte_t pteval;
 	struct page *subpage;
-	bool ret = true;
+	bool ret = true, invalidation_needed = false;
 	enum ttu_flags flags = (enum ttu_flags)arg;
 
 	/* munlock has nothing to gain from examining un-locked vmas */
@@ -1327,11 +1368,9 @@ static bool try_to_unmap_one(struct page *page, struct vm_area_struct *vma,
 		VM_BUG_ON_PAGE(!pvmw.pte, page);
 
 		subpage = page - page_to_pfn(page) + pte_pfn(*pvmw.pte);
-		address = pvmw.address;
-
 
 		if (!(flags & TTU_IGNORE_ACCESS)) {
-			if (ptep_clear_flush_young_notify(vma, address,
+			if (ptep_clear_flush_young_notify(vma, pvmw.address,
 						pvmw.pte)) {
 				ret = false;
 				page_vma_mapped_walk_done(&pvmw);
@@ -1340,7 +1379,7 @@ static bool try_to_unmap_one(struct page *page, struct vm_area_struct *vma,
 		}
 
 		/* Nuke the page table entry. */
-		flush_cache_page(vma, address, pte_pfn(*pvmw.pte));
+		flush_cache_page(vma, pvmw.address, pte_pfn(*pvmw.pte));
 		if (should_defer_flush(mm, flags)) {
 			/*
 			 * We clear the PTE but do not flush so potentially
@@ -1350,11 +1389,12 @@ static bool try_to_unmap_one(struct page *page, struct vm_area_struct *vma,
 			 * transition on a cached TLB entry is written through
 			 * and traps if the PTE is unmapped.
 			 */
-			pteval = ptep_get_and_clear(mm, address, pvmw.pte);
+			pteval = ptep_get_and_clear(mm, pvmw.address,
+						    pvmw.pte);
 
 			set_tlb_ubc_flush_pending(mm, pte_dirty(pteval));
 		} else {
-			pteval = ptep_clear_flush(vma, address, pvmw.pte);
+			pteval = ptep_clear_flush(vma, pvmw.address, pvmw.pte);
 		}
 
 		/* Move the dirty bit to the page. Now the pte is gone. */
@@ -1369,12 +1409,12 @@ static bool try_to_unmap_one(struct page *page, struct vm_area_struct *vma,
 			if (PageHuge(page)) {
 				int nr = 1 << compound_order(page);
 				hugetlb_count_sub(nr, mm);
-				set_huge_swap_pte_at(mm, address,
+				set_huge_swap_pte_at(mm, pvmw.address,
 						     pvmw.pte, pteval,
 						     vma_mmu_pagesize(vma));
 			} else {
 				dec_mm_counter(mm, mm_counter(page));
-				set_pte_at(mm, address, pvmw.pte, pteval);
+				set_pte_at(mm, pvmw.address, pvmw.pte, pteval);
 			}
 
 		} else if (pte_unused(pteval)) {
@@ -1398,7 +1438,7 @@ static bool try_to_unmap_one(struct page *page, struct vm_area_struct *vma,
 			swp_pte = swp_entry_to_pte(entry);
 			if (pte_soft_dirty(pteval))
 				swp_pte = pte_swp_mksoft_dirty(swp_pte);
-			set_pte_at(mm, address, pvmw.pte, swp_pte);
+			set_pte_at(mm, pvmw.address, pvmw.pte, swp_pte);
 		} else if (PageAnon(page)) {
 			swp_entry_t entry = { .val = page_private(subpage) };
 			pte_t swp_pte;
@@ -1424,7 +1464,7 @@ static bool try_to_unmap_one(struct page *page, struct vm_area_struct *vma,
 				 * If the page was redirtied, it cannot be
 				 * discarded. Remap the page to page table.
 				 */
-				set_pte_at(mm, address, pvmw.pte, pteval);
+				set_pte_at(mm, pvmw.address, pvmw.pte, pteval);
 				SetPageSwapBacked(page);
 				ret = false;
 				page_vma_mapped_walk_done(&pvmw);
@@ -1432,7 +1472,7 @@ static bool try_to_unmap_one(struct page *page, struct vm_area_struct *vma,
 			}
 
 			if (swap_duplicate(entry) < 0) {
-				set_pte_at(mm, address, pvmw.pte, pteval);
+				set_pte_at(mm, pvmw.address, pvmw.pte, pteval);
 				ret = false;
 				page_vma_mapped_walk_done(&pvmw);
 				break;
@@ -1448,14 +1488,18 @@ static bool try_to_unmap_one(struct page *page, struct vm_area_struct *vma,
 			swp_pte = swp_entry_to_pte(entry);
 			if (pte_soft_dirty(pteval))
 				swp_pte = pte_swp_mksoft_dirty(swp_pte);
-			set_pte_at(mm, address, pvmw.pte, swp_pte);
+			set_pte_at(mm, pvmw.address, pvmw.pte, swp_pte);
 		} else
 			dec_mm_counter(mm, mm_counter_file(page));
 discard:
 		page_remove_rmap(subpage, PageHuge(page));
 		put_page(page);
-		mmu_notifier_invalidate_page(mm, address);
+		invalidation_needed = true;
 	}
+
+	if (invalidation_needed)
+		mmu_notifier_invalidate_range(mm, address,
+				address + (1UL << compound_order(page)));
 	return ret;
 }
 
diff --git a/mm/shmem.c b/mm/shmem.c
index b0aa6075d164..6540e5982444 100644
--- a/mm/shmem.c
+++ b/mm/shmem.c
@@ -1022,7 +1022,11 @@ static int shmem_setattr(struct dentry *dentry, struct iattr *attr)
 			 */
 			if (IS_ENABLED(CONFIG_TRANSPARENT_HUGE_PAGECACHE)) {
 				spin_lock(&sbinfo->shrinklist_lock);
-				if (list_empty(&info->shrinklist)) {
+				/*
+				 * _careful to defend against unlocked access to
+				 * ->shrink_list in shmem_unused_huge_shrink()
+				 */
+				if (list_empty_careful(&info->shrinklist)) {
 					list_add_tail(&info->shrinklist,
 							&sbinfo->shrinklist);
 					sbinfo->shrinklist_len++;
@@ -1817,7 +1821,11 @@ alloc_nohuge:		page = shmem_alloc_and_acct_page(gfp, info, sbinfo,
 			 * to shrink under memory pressure.
 			 */
 			spin_lock(&sbinfo->shrinklist_lock);
-			if (list_empty(&info->shrinklist)) {
+			/*
+			 * _careful to defend against unlocked access to
+			 * ->shrink_list in shmem_unused_huge_shrink()
+			 */
+			if (list_empty_careful(&info->shrinklist)) {
 				list_add_tail(&info->shrinklist,
 						&sbinfo->shrinklist);
 				sbinfo->shrinklist_len++;
diff --git a/mm/slub.c b/mm/slub.c
index 1d3f9835f4ea..e8b4e31162ca 100644
--- a/mm/slub.c
+++ b/mm/slub.c
@@ -5642,13 +5642,14 @@ static void sysfs_slab_remove_workfn(struct work_struct *work)
 		 * A cache is never shut down before deactivation is
 		 * complete, so no need to worry about synchronization.
 		 */
-		return;
+		goto out;
 
 #ifdef CONFIG_MEMCG
 	kset_unregister(s->memcg_kset);
 #endif
 	kobject_uevent(&s->kobj, KOBJ_REMOVE);
 	kobject_del(&s->kobj);
+out:
 	kobject_put(&s->kobj);
 }
 
diff --git a/mm/sparse-vmemmap.c b/mm/sparse-vmemmap.c
index a56c3989f773..c50b1a14d55e 100644
--- a/mm/sparse-vmemmap.c
+++ b/mm/sparse-vmemmap.c
@@ -56,11 +56,11 @@ void * __meminit vmemmap_alloc_block(unsigned long size, int node)
 
 		if (node_state(node, N_HIGH_MEMORY))
 			page = alloc_pages_node(
-				node, GFP_KERNEL | __GFP_ZERO | __GFP_REPEAT,
+				node, GFP_KERNEL | __GFP_ZERO | __GFP_RETRY_MAYFAIL,
 				get_order(size));
 		else
 			page = alloc_pages(
-				GFP_KERNEL | __GFP_ZERO | __GFP_REPEAT,
+				GFP_KERNEL | __GFP_ZERO | __GFP_RETRY_MAYFAIL,
 				get_order(size));
 		if (page)
 			return page_address(page);
diff --git a/mm/util.c b/mm/util.c
index 26be6407abd7..9ecddf568fe3 100644
--- a/mm/util.c
+++ b/mm/util.c
@@ -83,6 +83,8 @@ EXPORT_SYMBOL(kstrdup_const);
  * @s: the string to duplicate
  * @max: read at most @max chars from @s
  * @gfp: the GFP mask used in the kmalloc() call when allocating memory
+ *
+ * Note: Use kmemdup_nul() instead if the size is known exactly.
  */
 char *kstrndup(const char *s, size_t max, gfp_t gfp)
 {
@@ -121,6 +123,28 @@ void *kmemdup(const void *src, size_t len, gfp_t gfp)
 EXPORT_SYMBOL(kmemdup);
 
 /**
+ * kmemdup_nul - Create a NUL-terminated string from unterminated data
+ * @s: The data to stringify
+ * @len: The size of the data
+ * @gfp: the GFP mask used in the kmalloc() call when allocating memory
+ */
+char *kmemdup_nul(const char *s, size_t len, gfp_t gfp)
+{
+	char *buf;
+
+	if (!s)
+		return NULL;
+
+	buf = kmalloc_track_caller(len + 1, gfp);
+	if (buf) {
+		memcpy(buf, s, len);
+		buf[len] = '\0';
+	}
+	return buf;
+}
+EXPORT_SYMBOL(kmemdup_nul);
+
+/**
  * memdup_user - duplicate memory region from user space
  *
  * @src: source address in user space
@@ -339,9 +363,9 @@ EXPORT_SYMBOL(vm_mmap);
  * Uses kmalloc to get the memory but if the allocation fails then falls back
  * to the vmalloc allocator. Use kvfree for freeing the memory.
  *
- * Reclaim modifiers - __GFP_NORETRY and __GFP_NOFAIL are not supported. __GFP_REPEAT
- * is supported only for large (>32kB) allocations, and it should be used only if
- * kmalloc is preferable to the vmalloc fallback, due to visible performance drawbacks.
+ * Reclaim modifiers - __GFP_NORETRY and __GFP_NOFAIL are not supported.
+ * __GFP_RETRY_MAYFAIL is supported, and it should be used only if kmalloc is
+ * preferable to the vmalloc fallback, due to visible performance drawbacks.
  *
  * Any use of gfp flags outside of GFP_KERNEL should be consulted with mm people.
  */
@@ -366,13 +390,7 @@ void *kvmalloc_node(size_t size, gfp_t flags, int node)
 	if (size > PAGE_SIZE) {
 		kmalloc_flags |= __GFP_NOWARN;
 
-		/*
-		 * We have to override __GFP_REPEAT by __GFP_NORETRY for !costly
-		 * requests because there is no other way to tell the allocator
-		 * that we want to fail rather than retry endlessly.
-		 */
-		if (!(kmalloc_flags & __GFP_REPEAT) ||
-				(size <= PAGE_SIZE << PAGE_ALLOC_COSTLY_ORDER))
+		if (!(kmalloc_flags & __GFP_RETRY_MAYFAIL))
 			kmalloc_flags |= __GFP_NORETRY;
 	}
 
@@ -615,7 +633,7 @@ int __vm_enough_memory(struct mm_struct *mm, long pages, int cap_sys_admin)
 		 * which are reclaimable, under pressure.  The dentry
 		 * cache and most inode caches should fall into this
 		 */
-		free += global_page_state(NR_SLAB_RECLAIMABLE);
+		free += global_node_page_state(NR_SLAB_RECLAIMABLE);
 
 		/*
 		 * Leave reserved pages. The pages are not for anonymous pages.
diff --git a/mm/vmalloc.c b/mm/vmalloc.c
index 6016ab079e2b..a47e3894c775 100644
--- a/mm/vmalloc.c
+++ b/mm/vmalloc.c
@@ -1671,7 +1671,10 @@ static void *__vmalloc_area_node(struct vm_struct *area, gfp_t gfp_mask,
 	struct page **pages;
 	unsigned int nr_pages, array_size, i;
 	const gfp_t nested_gfp = (gfp_mask & GFP_RECLAIM_MASK) | __GFP_ZERO;
-	const gfp_t alloc_mask = gfp_mask | __GFP_HIGHMEM | __GFP_NOWARN;
+	const gfp_t alloc_mask = gfp_mask | __GFP_NOWARN;
+	const gfp_t highmem_mask = (gfp_mask & (GFP_DMA | GFP_DMA32)) ?
+					0 :
+					__GFP_HIGHMEM;
 
 	nr_pages = get_vm_area_size(area) >> PAGE_SHIFT;
 	array_size = (nr_pages * sizeof(struct page *));
@@ -1679,7 +1682,7 @@ static void *__vmalloc_area_node(struct vm_struct *area, gfp_t gfp_mask,
 	area->nr_pages = nr_pages;
 	/* Please note that the recursion is strictly bounded. */
 	if (array_size > PAGE_SIZE) {
-		pages = __vmalloc_node(array_size, 1, nested_gfp|__GFP_HIGHMEM,
+		pages = __vmalloc_node(array_size, 1, nested_gfp|highmem_mask,
 				PAGE_KERNEL, node, area->caller);
 	} else {
 		pages = kmalloc_node(array_size, nested_gfp, node);
@@ -1700,9 +1703,9 @@ static void *__vmalloc_area_node(struct vm_struct *area, gfp_t gfp_mask,
 		}
 
 		if (node == NUMA_NO_NODE)
-			page = alloc_page(alloc_mask);
+			page = alloc_page(alloc_mask|highmem_mask);
 		else
-			page = alloc_pages_node(node, alloc_mask, 0);
+			page = alloc_pages_node(node, alloc_mask|highmem_mask, 0);
 
 		if (unlikely(!page)) {
 			/* Successfully allocated i pages, free them in __vunmap() */
@@ -1710,7 +1713,7 @@ static void *__vmalloc_area_node(struct vm_struct *area, gfp_t gfp_mask,
 			goto fail;
 		}
 		area->pages[i] = page;
-		if (gfpflags_allow_blocking(gfp_mask))
+		if (gfpflags_allow_blocking(gfp_mask|highmem_mask))
 			cond_resched();
 	}
 
@@ -1795,7 +1798,7 @@ fail:
  *	allocator with @gfp_mask flags.  Map them into contiguous
  *	kernel virtual space, using a pagetable protection of @prot.
  *
- *	Reclaim modifiers in @gfp_mask - __GFP_NORETRY, __GFP_REPEAT
+ *	Reclaim modifiers in @gfp_mask - __GFP_NORETRY, __GFP_RETRY_MAYFAIL
  *	and __GFP_NOFAIL are not supported
  *
  *	Any use of gfp flags outside of GFP_KERNEL should be consulted
diff --git a/mm/vmscan.c b/mm/vmscan.c
index e9210f825219..a1af041930a6 100644
--- a/mm/vmscan.c
+++ b/mm/vmscan.c
@@ -2506,18 +2506,18 @@ static inline bool should_continue_reclaim(struct pglist_data *pgdat,
 		return false;
 
 	/* Consider stopping depending on scan and reclaim activity */
-	if (sc->gfp_mask & __GFP_REPEAT) {
+	if (sc->gfp_mask & __GFP_RETRY_MAYFAIL) {
 		/*
-		 * For __GFP_REPEAT allocations, stop reclaiming if the
+		 * For __GFP_RETRY_MAYFAIL allocations, stop reclaiming if the
 		 * full LRU list has been scanned and we are still failing
 		 * to reclaim pages. This full LRU scan is potentially
-		 * expensive but a __GFP_REPEAT caller really wants to succeed
+		 * expensive but a __GFP_RETRY_MAYFAIL caller really wants to succeed
 		 */
 		if (!nr_reclaimed && !nr_scanned)
 			return false;
 	} else {
 		/*
-		 * For non-__GFP_REPEAT allocations which can presumably
+		 * For non-__GFP_RETRY_MAYFAIL allocations which can presumably
 		 * fail without consequence, stop if we failed to reclaim
 		 * any pages from the last SWAP_CLUSTER_MAX number of
 		 * pages that were scanned. This will return to the
diff --git a/mm/zsmalloc.c b/mm/zsmalloc.c
index 013eea76685e..308acb9d814b 100644
--- a/mm/zsmalloc.c
+++ b/mm/zsmalloc.c
@@ -2453,7 +2453,6 @@ void zs_destroy_pool(struct zs_pool *pool)
 	}
 
 	destroy_cache(pool);
-	kfree(pool->size_class);
 	kfree(pool->name);
 	kfree(pool);
 }
diff --git a/net/9p/client.c b/net/9p/client.c
index 1218fb3b52da..4674235b0d9b 100644
--- a/net/9p/client.c
+++ b/net/9p/client.c
@@ -37,6 +37,7 @@
 #include <linux/uio.h>
 #include <net/9p/9p.h>
 #include <linux/parser.h>
+#include <linux/seq_file.h>
 #include <net/9p/client.h>
 #include <net/9p/transport.h>
 #include "protocol.h"
@@ -77,6 +78,30 @@ inline int p9_is_proto_dotu(struct p9_client *clnt)
 }
 EXPORT_SYMBOL(p9_is_proto_dotu);
 
+int p9_show_client_options(struct seq_file *m, struct p9_client *clnt)
+{
+	if (clnt->msize != 8192)
+		seq_printf(m, ",msize=%u", clnt->msize);
+	seq_printf(m, "trans=%s", clnt->trans_mod->name);
+
+	switch (clnt->proto_version) {
+	case p9_proto_legacy:
+		seq_puts(m, ",noextend");
+		break;
+	case p9_proto_2000u:
+		seq_puts(m, ",version=9p2000.u");
+		break;
+	case p9_proto_2000L:
+		/* Default */
+		break;
+	}
+
+	if (clnt->trans_mod->show_options)
+		return clnt->trans_mod->show_options(m, clnt);
+	return 0;
+}
+EXPORT_SYMBOL(p9_show_client_options);
+
 /*
  * Some error codes are taken directly from the server replies,
  * make sure they are valid.
diff --git a/net/9p/trans_fd.c b/net/9p/trans_fd.c
index dca3cdd1a014..ddfa86648f95 100644
--- a/net/9p/trans_fd.c
+++ b/net/9p/trans_fd.c
@@ -41,6 +41,7 @@
 #include <linux/file.h>
 #include <linux/parser.h>
 #include <linux/slab.h>
+#include <linux/seq_file.h>
 #include <net/9p/9p.h>
 #include <net/9p/client.h>
 #include <net/9p/transport.h>
@@ -51,6 +52,9 @@
 #define MAX_SOCK_BUF (64*1024)
 #define MAXPOLLWADDR	2
 
+static struct p9_trans_module p9_tcp_trans;
+static struct p9_trans_module p9_fd_trans;
+
 /**
  * struct p9_fd_opts - per-transport options
  * @rfd: file descriptor for reading (trans=fd)
@@ -63,7 +67,7 @@ struct p9_fd_opts {
 	int rfd;
 	int wfd;
 	u16 port;
-	int privport;
+	bool privport;
 };
 
 /*
@@ -720,6 +724,20 @@ static int p9_fd_cancelled(struct p9_client *client, struct p9_req_t *req)
 	return 0;
 }
 
+static int p9_fd_show_options(struct seq_file *m, struct p9_client *clnt)
+{
+	if (clnt->trans_mod == &p9_tcp_trans) {
+		if (clnt->trans_opts.tcp.port != P9_PORT)
+			seq_printf(m, "port=%u", clnt->trans_opts.tcp.port);
+	} else if (clnt->trans_mod == &p9_fd_trans) {
+		if (clnt->trans_opts.fd.rfd != ~0)
+			seq_printf(m, "rfd=%u", clnt->trans_opts.fd.rfd);
+		if (clnt->trans_opts.fd.wfd != ~0)
+			seq_printf(m, "wfd=%u", clnt->trans_opts.fd.wfd);
+	}
+	return 0;
+}
+
 /**
  * parse_opts - parse mount options into p9_fd_opts structure
  * @params: options string passed from mount
@@ -738,7 +756,7 @@ static int parse_opts(char *params, struct p9_fd_opts *opts)
 	opts->port = P9_PORT;
 	opts->rfd = ~0;
 	opts->wfd = ~0;
-	opts->privport = 0;
+	opts->privport = false;
 
 	if (!params)
 		return 0;
@@ -776,7 +794,7 @@ static int parse_opts(char *params, struct p9_fd_opts *opts)
 			opts->wfd = option;
 			break;
 		case Opt_privport:
-			opts->privport = 1;
+			opts->privport = true;
 			break;
 		default:
 			continue;
@@ -942,6 +960,8 @@ p9_fd_create_tcp(struct p9_client *client, const char *addr, char *args)
 
 	csocket = NULL;
 
+	client->trans_opts.tcp.port = opts.port;
+	client->trans_opts.tcp.privport = opts.privport;
 	sin_server.sin_family = AF_INET;
 	sin_server.sin_addr.s_addr = in_aton(addr);
 	sin_server.sin_port = htons(opts.port);
@@ -1020,6 +1040,8 @@ p9_fd_create(struct p9_client *client, const char *addr, char *args)
 	struct p9_fd_opts opts;
 
 	parse_opts(args, &opts);
+	client->trans_opts.fd.rfd = opts.rfd;
+	client->trans_opts.fd.wfd = opts.wfd;
 
 	if (opts.rfd == ~0 || opts.wfd == ~0) {
 		pr_err("Insufficient options for proto=fd\n");
@@ -1044,6 +1066,7 @@ static struct p9_trans_module p9_tcp_trans = {
 	.request = p9_fd_request,
 	.cancel = p9_fd_cancel,
 	.cancelled = p9_fd_cancelled,
+	.show_options = p9_fd_show_options,
 	.owner = THIS_MODULE,
 };
 
@@ -1056,6 +1079,7 @@ static struct p9_trans_module p9_unix_trans = {
 	.request = p9_fd_request,
 	.cancel = p9_fd_cancel,
 	.cancelled = p9_fd_cancelled,
+	.show_options = p9_fd_show_options,
 	.owner = THIS_MODULE,
 };
 
@@ -1068,6 +1092,7 @@ static struct p9_trans_module p9_fd_trans = {
 	.request = p9_fd_request,
 	.cancel = p9_fd_cancel,
 	.cancelled = p9_fd_cancelled,
+	.show_options = p9_fd_show_options,
 	.owner = THIS_MODULE,
 };
 
diff --git a/net/9p/trans_rdma.c b/net/9p/trans_rdma.c
index 553ed4ecb6a0..6d8e3031978f 100644
--- a/net/9p/trans_rdma.c
+++ b/net/9p/trans_rdma.c
@@ -43,6 +43,7 @@
 #include <linux/parser.h>
 #include <linux/semaphore.h>
 #include <linux/slab.h>
+#include <linux/seq_file.h>
 #include <net/9p/9p.h>
 #include <net/9p/client.h>
 #include <net/9p/transport.h>
@@ -70,6 +71,8 @@
  * @dm_mr: DMA Memory Region pointer
  * @lkey: The local access only memory region key
  * @timeout: Number of uSecs to wait for connection management events
+ * @privport: Whether a privileged port may be used
+ * @port: The port to use
  * @sq_depth: The depth of the Send Queue
  * @sq_sem: Semaphore for the SQ
  * @rq_depth: The depth of the Receive Queue.
@@ -95,6 +98,8 @@ struct p9_trans_rdma {
 	struct ib_qp *qp;
 	struct ib_cq *cq;
 	long timeout;
+	bool privport;
+	u16 port;
 	int sq_depth;
 	struct semaphore sq_sem;
 	int rq_depth;
@@ -133,10 +138,10 @@ struct p9_rdma_context {
  */
 struct p9_rdma_opts {
 	short port;
+	bool privport;
 	int sq_depth;
 	int rq_depth;
 	long timeout;
-	int privport;
 };
 
 /*
@@ -159,6 +164,23 @@ static match_table_t tokens = {
 	{Opt_err, NULL},
 };
 
+static int p9_rdma_show_options(struct seq_file *m, struct p9_client *clnt)
+{
+	struct p9_trans_rdma *rdma = clnt->trans;
+
+	if (rdma->port != P9_PORT)
+		seq_printf(m, ",port=%u", rdma->port);
+	if (rdma->sq_depth != P9_RDMA_SQ_DEPTH)
+		seq_printf(m, ",sq=%u", rdma->sq_depth);
+	if (rdma->rq_depth != P9_RDMA_RQ_DEPTH)
+		seq_printf(m, ",rq=%u", rdma->rq_depth);
+	if (rdma->timeout != P9_RDMA_TIMEOUT)
+		seq_printf(m, ",timeout=%lu", rdma->timeout);
+	if (rdma->privport)
+		seq_puts(m, ",privport");
+	return 0;
+}
+
 /**
  * parse_opts - parse mount options into rdma options structure
  * @params: options string passed from mount
@@ -177,7 +199,7 @@ static int parse_opts(char *params, struct p9_rdma_opts *opts)
 	opts->sq_depth = P9_RDMA_SQ_DEPTH;
 	opts->rq_depth = P9_RDMA_RQ_DEPTH;
 	opts->timeout = P9_RDMA_TIMEOUT;
-	opts->privport = 0;
+	opts->privport = false;
 
 	if (!params)
 		return 0;
@@ -218,7 +240,7 @@ static int parse_opts(char *params, struct p9_rdma_opts *opts)
 			opts->timeout = option;
 			break;
 		case Opt_privport:
-			opts->privport = 1;
+			opts->privport = true;
 			break;
 		default:
 			continue;
@@ -560,6 +582,8 @@ static struct p9_trans_rdma *alloc_rdma(struct p9_rdma_opts *opts)
 	if (!rdma)
 		return NULL;
 
+	rdma->port = opts->port;
+	rdma->privport = opts->privport;
 	rdma->sq_depth = opts->sq_depth;
 	rdma->rq_depth = opts->rq_depth;
 	rdma->timeout = opts->timeout;
@@ -733,6 +757,7 @@ static struct p9_trans_module p9_rdma_trans = {
 	.request = rdma_request,
 	.cancel = rdma_cancel,
 	.cancelled = rdma_cancelled,
+	.show_options = p9_rdma_show_options,
 };
 
 /**
diff --git a/net/batman-adv/translation-table.c b/net/batman-adv/translation-table.c
index e1133bc634b5..8a3ce79b1307 100644
--- a/net/batman-adv/translation-table.c
+++ b/net/batman-adv/translation-table.c
@@ -1549,9 +1549,41 @@ batadv_tt_global_entry_has_orig(const struct batadv_tt_global_entry *entry,
 	return found;
 }
 
+/**
+ * batadv_tt_global_sync_flags - update TT sync flags
+ * @tt_global: the TT global entry to update sync flags in
+ *
+ * Updates the sync flag bits in the tt_global flag attribute with a logical
+ * OR of all sync flags from any of its TT orig entries.
+ */
+static void
+batadv_tt_global_sync_flags(struct batadv_tt_global_entry *tt_global)
+{
+	struct batadv_tt_orig_list_entry *orig_entry;
+	const struct hlist_head *head;
+	u16 flags = BATADV_NO_FLAGS;
+
+	rcu_read_lock();
+	head = &tt_global->orig_list;
+	hlist_for_each_entry_rcu(orig_entry, head, list)
+		flags |= orig_entry->flags;
+	rcu_read_unlock();
+
+	flags |= tt_global->common.flags & (~BATADV_TT_SYNC_MASK);
+	tt_global->common.flags = flags;
+}
+
+/**
+ * batadv_tt_global_orig_entry_add - add or update a TT orig entry
+ * @tt_global: the TT global entry to add an orig entry in
+ * @orig_node: the originator to add an orig entry for
+ * @ttvn: translation table version number of this changeset
+ * @flags: TT sync flags
+ */
 static void
 batadv_tt_global_orig_entry_add(struct batadv_tt_global_entry *tt_global,
-				struct batadv_orig_node *orig_node, int ttvn)
+				struct batadv_orig_node *orig_node, int ttvn,
+				u8 flags)
 {
 	struct batadv_tt_orig_list_entry *orig_entry;
 
@@ -1561,7 +1593,8 @@ batadv_tt_global_orig_entry_add(struct batadv_tt_global_entry *tt_global,
 		 * was added during a "temporary client detection"
 		 */
 		orig_entry->ttvn = ttvn;
-		goto out;
+		orig_entry->flags = flags;
+		goto sync_flags;
 	}
 
 	orig_entry = kmem_cache_zalloc(batadv_tt_orig_cache, GFP_ATOMIC);
@@ -1573,6 +1606,7 @@ batadv_tt_global_orig_entry_add(struct batadv_tt_global_entry *tt_global,
 	batadv_tt_global_size_inc(orig_node, tt_global->common.vid);
 	orig_entry->orig_node = orig_node;
 	orig_entry->ttvn = ttvn;
+	orig_entry->flags = flags;
 	kref_init(&orig_entry->refcount);
 
 	spin_lock_bh(&tt_global->list_lock);
@@ -1582,6 +1616,8 @@ batadv_tt_global_orig_entry_add(struct batadv_tt_global_entry *tt_global,
 	spin_unlock_bh(&tt_global->list_lock);
 	atomic_inc(&tt_global->orig_list_count);
 
+sync_flags:
+	batadv_tt_global_sync_flags(tt_global);
 out:
 	if (orig_entry)
 		batadv_tt_orig_list_entry_put(orig_entry);
@@ -1703,10 +1739,10 @@ static bool batadv_tt_global_add(struct batadv_priv *bat_priv,
 		}
 
 		/* the change can carry possible "attribute" flags like the
-		 * TT_CLIENT_WIFI, therefore they have to be copied in the
+		 * TT_CLIENT_TEMP, therefore they have to be copied in the
 		 * client entry
 		 */
-		common->flags |= flags;
+		common->flags |= flags & (~BATADV_TT_SYNC_MASK);
 
 		/* If there is the BATADV_TT_CLIENT_ROAM flag set, there is only
 		 * one originator left in the list and we previously received a
@@ -1723,7 +1759,8 @@ static bool batadv_tt_global_add(struct batadv_priv *bat_priv,
 	}
 add_orig_entry:
 	/* add the new orig_entry (if needed) or update it */
-	batadv_tt_global_orig_entry_add(tt_global_entry, orig_node, ttvn);
+	batadv_tt_global_orig_entry_add(tt_global_entry, orig_node, ttvn,
+					flags & BATADV_TT_SYNC_MASK);
 
 	batadv_dbg(BATADV_DBG_TT, bat_priv,
 		   "Creating new global tt entry: %pM (vid: %d, via %pM)\n",
@@ -1946,6 +1983,7 @@ batadv_tt_global_dump_subentry(struct sk_buff *msg, u32 portid, u32 seq,
 			       struct batadv_tt_orig_list_entry *orig,
 			       bool best)
 {
+	u16 flags = (common->flags & (~BATADV_TT_SYNC_MASK)) | orig->flags;
 	void *hdr;
 	struct batadv_orig_node_vlan *vlan;
 	u8 last_ttvn;
@@ -1975,7 +2013,7 @@ batadv_tt_global_dump_subentry(struct sk_buff *msg, u32 portid, u32 seq,
 	    nla_put_u8(msg, BATADV_ATTR_TT_LAST_TTVN, last_ttvn) ||
 	    nla_put_u32(msg, BATADV_ATTR_TT_CRC32, crc) ||
 	    nla_put_u16(msg, BATADV_ATTR_TT_VID, common->vid) ||
-	    nla_put_u32(msg, BATADV_ATTR_TT_FLAGS, common->flags))
+	    nla_put_u32(msg, BATADV_ATTR_TT_FLAGS, flags))
 		goto nla_put_failure;
 
 	if (best && nla_put_flag(msg, BATADV_ATTR_FLAG_BEST))
@@ -2589,6 +2627,7 @@ static u32 batadv_tt_global_crc(struct batadv_priv *bat_priv,
 				unsigned short vid)
 {
 	struct batadv_hashtable *hash = bat_priv->tt.global_hash;
+	struct batadv_tt_orig_list_entry *tt_orig;
 	struct batadv_tt_common_entry *tt_common;
 	struct batadv_tt_global_entry *tt_global;
 	struct hlist_head *head;
@@ -2627,8 +2666,9 @@ static u32 batadv_tt_global_crc(struct batadv_priv *bat_priv,
 			/* find out if this global entry is announced by this
 			 * originator
 			 */
-			if (!batadv_tt_global_entry_has_orig(tt_global,
-							     orig_node))
+			tt_orig = batadv_tt_global_orig_entry_find(tt_global,
+								   orig_node);
+			if (!tt_orig)
 				continue;
 
 			/* use network order to read the VID: this ensures that
@@ -2640,10 +2680,12 @@ static u32 batadv_tt_global_crc(struct batadv_priv *bat_priv,
 			/* compute the CRC on flags that have to be kept in sync
 			 * among nodes
 			 */
-			flags = tt_common->flags & BATADV_TT_SYNC_MASK;
+			flags = tt_orig->flags;
 			crc_tmp = crc32c(crc_tmp, &flags, sizeof(flags));
 
 			crc ^= crc32c(crc_tmp, tt_common->addr, ETH_ALEN);
+
+			batadv_tt_orig_list_entry_put(tt_orig);
 		}
 		rcu_read_unlock();
 	}
diff --git a/net/batman-adv/types.h b/net/batman-adv/types.h
index ea43a6449247..a62795868794 100644
--- a/net/batman-adv/types.h
+++ b/net/batman-adv/types.h
@@ -1260,6 +1260,7 @@ struct batadv_tt_global_entry {
  * struct batadv_tt_orig_list_entry - orig node announcing a non-mesh client
  * @orig_node: pointer to orig node announcing this non-mesh client
  * @ttvn: translation table version number which added the non-mesh client
+ * @flags: per orig entry TT sync flags
  * @list: list node for batadv_tt_global_entry::orig_list
  * @refcount: number of contexts the object is used
  * @rcu: struct used for freeing in an RCU-safe manner
@@ -1267,6 +1268,7 @@ struct batadv_tt_global_entry {
 struct batadv_tt_orig_list_entry {
 	struct batadv_orig_node *orig_node;
 	u8 ttvn;
+	u8 flags;
 	struct hlist_node list;
 	struct kref refcount;
 	struct rcu_head rcu;
diff --git a/net/bridge/br_device.c b/net/bridge/br_device.c
index f0f3447e8aa4..861ae2a165f4 100644
--- a/net/bridge/br_device.c
+++ b/net/bridge/br_device.c
@@ -34,11 +34,11 @@ static struct lock_class_key bridge_netdev_addr_lock_key;
 netdev_tx_t br_dev_xmit(struct sk_buff *skb, struct net_device *dev)
 {
 	struct net_bridge *br = netdev_priv(dev);
-	const unsigned char *dest = skb->data;
 	struct net_bridge_fdb_entry *dst;
 	struct net_bridge_mdb_entry *mdst;
 	struct pcpu_sw_netstats *brstats = this_cpu_ptr(br->stats);
 	const struct nf_br_ops *nf_ops;
+	const unsigned char *dest;
 	u16 vid = 0;
 
 	rcu_read_lock();
@@ -61,6 +61,7 @@ netdev_tx_t br_dev_xmit(struct sk_buff *skb, struct net_device *dev)
 	if (!br_allowed_ingress(br, br_vlan_group_rcu(br), skb, &vid))
 		goto out;
 
+	dest = eth_hdr(skb)->h_dest;
 	if (is_broadcast_ether_addr(dest)) {
 		br_flood(br, skb, BR_PKT_BROADCAST, false, true);
 	} else if (is_multicast_ether_addr(dest)) {
diff --git a/net/bridge/br_input.c b/net/bridge/br_input.c
index 013f2290bfa5..7637f58c1226 100644
--- a/net/bridge/br_input.c
+++ b/net/bridge/br_input.c
@@ -131,11 +131,11 @@ static void br_do_proxy_arp(struct sk_buff *skb, struct net_bridge *br,
 int br_handle_frame_finish(struct net *net, struct sock *sk, struct sk_buff *skb)
 {
 	struct net_bridge_port *p = br_port_get_rcu(skb->dev);
-	const unsigned char *dest = eth_hdr(skb)->h_dest;
 	enum br_pkt_type pkt_type = BR_PKT_UNICAST;
 	struct net_bridge_fdb_entry *dst = NULL;
 	struct net_bridge_mdb_entry *mdst;
 	bool local_rcv, mcast_hit = false;
+	const unsigned char *dest;
 	struct net_bridge *br;
 	u16 vid = 0;
 
@@ -153,6 +153,7 @@ int br_handle_frame_finish(struct net *net, struct sock *sk, struct sk_buff *skb
 		br_fdb_update(br, p, eth_hdr(skb)->h_source, vid, false);
 
 	local_rcv = !!(br->dev->flags & IFF_PROMISC);
+	dest = eth_hdr(skb)->h_dest;
 	if (is_multicast_ether_addr(dest)) {
 		/* by definition the broadcast is also a multicast address */
 		if (is_broadcast_ether_addr(dest)) {
diff --git a/net/bridge/br_mdb.c b/net/bridge/br_mdb.c
index 09dcdb9c0f3c..a0b11e7d67d9 100644
--- a/net/bridge/br_mdb.c
+++ b/net/bridge/br_mdb.c
@@ -323,7 +323,8 @@ static void __br_mdb_notify(struct net_device *dev, struct net_bridge_port *p,
 			__mdb_entry_to_br_ip(entry, &complete_info->ip);
 			mdb.obj.complete_priv = complete_info;
 			mdb.obj.complete = br_mdb_complete;
-			switchdev_port_obj_add(port_dev, &mdb.obj);
+			if (switchdev_port_obj_add(port_dev, &mdb.obj))
+				kfree(complete_info);
 		}
 	} else if (port_dev && type == RTM_DELMDB) {
 		switchdev_port_obj_del(port_dev, &mdb.obj);
diff --git a/net/ceph/ceph_common.c b/net/ceph/ceph_common.c
index 3d265c5cb6d0..5c036d2f401e 100644
--- a/net/ceph/ceph_common.c
+++ b/net/ceph/ceph_common.c
@@ -599,7 +599,11 @@ struct ceph_client *ceph_create_client(struct ceph_options *opt, void *private)
 {
 	struct ceph_client *client;
 	struct ceph_entity_addr *myaddr = NULL;
-	int err = -ENOMEM;
+	int err;
+
+	err = wait_for_random_bytes();
+	if (err < 0)
+		return ERR_PTR(err);
 
 	client = kzalloc(sizeof(*client), GFP_KERNEL);
 	if (client == NULL)
diff --git a/net/ceph/crush/mapper.c b/net/ceph/crush/mapper.c
index 746b145bfd11..417df675c71b 100644
--- a/net/ceph/crush/mapper.c
+++ b/net/ceph/crush/mapper.c
@@ -306,7 +306,7 @@ static __u32 *get_choose_arg_weights(const struct crush_bucket_straw2 *bucket,
 				     const struct crush_choose_arg *arg,
 				     int position)
 {
-	if (!arg || !arg->weight_set || arg->weight_set_size == 0)
+	if (!arg || !arg->weight_set)
 		return bucket->item_weights;
 
 	if (position >= arg->weight_set_size)
diff --git a/net/ceph/messenger.c b/net/ceph/messenger.c
index 0c31035bbfee..a67298c7e0cd 100644
--- a/net/ceph/messenger.c
+++ b/net/ceph/messenger.c
@@ -1287,10 +1287,10 @@ static void prepare_write_message(struct ceph_connection *con)
 	if (m->needs_out_seq) {
 		m->hdr.seq = cpu_to_le64(++con->out_seq);
 		m->needs_out_seq = false;
-	}
 
-	if (con->ops->reencode_message)
-		con->ops->reencode_message(m);
+		if (con->ops->reencode_message)
+			con->ops->reencode_message(m);
+	}
 
 	dout("prepare_write_message %p seq %lld type %d len %d+%d+%zd\n",
 	     m, con->out_seq, le16_to_cpu(m->hdr.type),
@@ -3203,8 +3203,10 @@ static struct ceph_msg_data *ceph_msg_data_create(enum ceph_msg_data_type type)
 		return NULL;
 
 	data = kmem_cache_zalloc(ceph_msg_data_cache, GFP_NOFS);
-	if (data)
-		data->type = type;
+	if (!data)
+		return NULL;
+
+	data->type = type;
 	INIT_LIST_HEAD(&data->links);
 
 	return data;
diff --git a/net/ceph/osd_client.c b/net/ceph/osd_client.c
index 86a9737d8e3f..dcfbdd74dfd1 100644
--- a/net/ceph/osd_client.c
+++ b/net/ceph/osd_client.c
@@ -1337,6 +1337,8 @@ static enum calc_target_result calc_target(struct ceph_osd_client *osdc,
 	bool legacy_change;
 	bool split = false;
 	bool sort_bitwise = ceph_osdmap_flag(osdc, CEPH_OSDMAP_SORTBITWISE);
+	bool recovery_deletes = ceph_osdmap_flag(osdc,
+						 CEPH_OSDMAP_RECOVERY_DELETES);
 	enum calc_target_result ct_res;
 	int ret;
 
@@ -1399,6 +1401,8 @@ static enum calc_target_result calc_target(struct ceph_osd_client *osdc,
 				 pi->pg_num,
 				 t->sort_bitwise,
 				 sort_bitwise,
+				 t->recovery_deletes,
+				 recovery_deletes,
 				 &last_pgid))
 		force_resend = true;
 
@@ -1421,6 +1425,7 @@ static enum calc_target_result calc_target(struct ceph_osd_client *osdc,
 		t->pg_num = pi->pg_num;
 		t->pg_num_mask = pi->pg_num_mask;
 		t->sort_bitwise = sort_bitwise;
+		t->recovery_deletes = recovery_deletes;
 
 		t->osd = acting.primary;
 	}
@@ -1918,10 +1923,12 @@ static void encode_request_partial(struct ceph_osd_request *req,
 	}
 
 	ceph_encode_32(&p, req->r_attempts); /* retry_attempt */
-	BUG_ON(p != end - 8); /* space for features */
+	BUG_ON(p > end - 8); /* space for features */
 
 	msg->hdr.version = cpu_to_le16(8); /* MOSDOp v8 */
 	/* front_len is finalized in encode_request_finish() */
+	msg->front.iov_len = p - msg->front.iov_base;
+	msg->hdr.front_len = cpu_to_le32(msg->front.iov_len);
 	msg->hdr.data_len = cpu_to_le32(data_len);
 	/*
 	 * The header "data_off" is a hint to the receiver allowing it
@@ -1937,11 +1944,12 @@ static void encode_request_partial(struct ceph_osd_request *req,
 static void encode_request_finish(struct ceph_msg *msg)
 {
 	void *p = msg->front.iov_base;
+	void *const partial_end = p + msg->front.iov_len;
 	void *const end = p + msg->front_alloc_len;
 
 	if (CEPH_HAVE_FEATURE(msg->con->peer_features, RESEND_ON_SPLIT)) {
 		/* luminous OSD -- encode features and be done */
-		p = end - 8;
+		p = partial_end;
 		ceph_encode_64(&p, msg->con->peer_features);
 	} else {
 		struct {
@@ -1984,7 +1992,7 @@ static void encode_request_finish(struct ceph_msg *msg)
 		oid_len = p - oid;
 
 		tail = p;
-		tail_len = (end - p) - 8;
+		tail_len = partial_end - p;
 
 		p = msg->front.iov_base;
 		ceph_encode_copy(&p, &head.client_inc, sizeof(head.client_inc));
@@ -5310,7 +5318,10 @@ static int invalidate_authorizer(struct ceph_connection *con)
 
 static void osd_reencode_message(struct ceph_msg *msg)
 {
-	encode_request_finish(msg);
+	int type = le16_to_cpu(msg->hdr.type);
+
+	if (type == CEPH_MSG_OSD_OP)
+		encode_request_finish(msg);
 }
 
 static int osd_sign_message(struct ceph_msg *msg)
diff --git a/net/ceph/osdmap.c b/net/ceph/osdmap.c
index 864789c5974e..f358d0bfa76b 100644
--- a/net/ceph/osdmap.c
+++ b/net/ceph/osdmap.c
@@ -295,6 +295,10 @@ static int decode_choose_args(void **p, void *end, struct crush_map *c)
 			ret = decode_choose_arg(p, end, arg);
 			if (ret)
 				goto fail;
+
+			if (arg->ids_size &&
+			    arg->ids_size != c->buckets[bucket_index]->size)
+				goto e_inval;
 		}
 
 		insert_choose_arg_map(&c->choose_args, arg_map);
@@ -338,7 +342,7 @@ static void crush_finalize(struct crush_map *c)
 static struct crush_map *crush_decode(void *pbyval, void *end)
 {
 	struct crush_map *c;
-	int err = -EINVAL;
+	int err;
 	int i, j;
 	void **p = &pbyval;
 	void *start = pbyval;
@@ -407,7 +411,6 @@ static struct crush_map *crush_decode(void *pbyval, void *end)
 			size = sizeof(struct crush_bucket_straw2);
 			break;
 		default:
-			err = -EINVAL;
 			goto bad;
 		}
 		BUG_ON(size == 0);
@@ -439,31 +442,31 @@ static struct crush_map *crush_decode(void *pbyval, void *end)
 			err = crush_decode_uniform_bucket(p, end,
 				  (struct crush_bucket_uniform *)b);
 			if (err < 0)
-				goto bad;
+				goto fail;
 			break;
 		case CRUSH_BUCKET_LIST:
 			err = crush_decode_list_bucket(p, end,
 			       (struct crush_bucket_list *)b);
 			if (err < 0)
-				goto bad;
+				goto fail;
 			break;
 		case CRUSH_BUCKET_TREE:
 			err = crush_decode_tree_bucket(p, end,
 				(struct crush_bucket_tree *)b);
 			if (err < 0)
-				goto bad;
+				goto fail;
 			break;
 		case CRUSH_BUCKET_STRAW:
 			err = crush_decode_straw_bucket(p, end,
 				(struct crush_bucket_straw *)b);
 			if (err < 0)
-				goto bad;
+				goto fail;
 			break;
 		case CRUSH_BUCKET_STRAW2:
 			err = crush_decode_straw2_bucket(p, end,
 				(struct crush_bucket_straw2 *)b);
 			if (err < 0)
-				goto bad;
+				goto fail;
 			break;
 		}
 	}
@@ -474,7 +477,6 @@ static struct crush_map *crush_decode(void *pbyval, void *end)
 		u32 yes;
 		struct crush_rule *r;
 
-		err = -EINVAL;
 		ceph_decode_32_safe(p, end, yes, bad);
 		if (!yes) {
 			dout("crush_decode NO rule %d off %x %p to %p\n",
@@ -489,7 +491,6 @@ static struct crush_map *crush_decode(void *pbyval, void *end)
 		/* len */
 		ceph_decode_32_safe(p, end, yes, bad);
 #if BITS_PER_LONG == 32
-		err = -EINVAL;
 		if (yes > (ULONG_MAX - sizeof(*r))
 			  / sizeof(struct crush_rule_step))
 			goto bad;
@@ -557,7 +558,7 @@ static struct crush_map *crush_decode(void *pbyval, void *end)
 	if (*p != end) {
 		err = decode_choose_args(p, end, c);
 		if (err)
-			goto bad;
+			goto fail;
 	}
 
 done:
@@ -567,10 +568,14 @@ done:
 
 badmem:
 	err = -ENOMEM;
-bad:
+fail:
 	dout("crush_decode fail %d\n", err);
 	crush_destroy(c);
 	return ERR_PTR(err);
+
+bad:
+	err = -EINVAL;
+	goto fail;
 }
 
 int ceph_pg_compare(const struct ceph_pg *lhs, const struct ceph_pg *rhs)
@@ -1399,7 +1404,7 @@ static struct ceph_pg_mapping *__decode_pg_upmap_items(void **p, void *end,
 		return ERR_PTR(-EINVAL);
 
 	ceph_decode_need(p, end, 2 * len * sizeof(u32), e_inval);
-	pg = kzalloc(sizeof(*pg) + 2 * len * sizeof(u32), GFP_NOIO);
+	pg = alloc_pg_mapping(2 * len * sizeof(u32));
 	if (!pg)
 		return ERR_PTR(-ENOMEM);
 
@@ -1544,7 +1549,7 @@ static int osdmap_decode(void **p, void *end, struct ceph_osdmap *map)
 	if (struct_v >= 3) {
 		/* erasure_code_profiles */
 		ceph_decode_skip_map_of_map(p, end, string, string, string,
-					    bad);
+					    e_inval);
 	}
 
 	if (struct_v >= 4) {
@@ -1825,9 +1830,9 @@ struct ceph_osdmap *osdmap_apply_incremental(void **p, void *end,
 	if (struct_v >= 3) {
 		/* new_erasure_code_profiles */
 		ceph_decode_skip_map_of_map(p, end, string, string, string,
-					    bad);
+					    e_inval);
 		/* old_erasure_code_profiles */
-		ceph_decode_skip_set(p, end, string, bad);
+		ceph_decode_skip_set(p, end, string, e_inval);
 	}
 
 	if (struct_v >= 4) {
@@ -2077,6 +2082,8 @@ bool ceph_is_new_interval(const struct ceph_osds *old_acting,
 			  u32 new_pg_num,
 			  bool old_sort_bitwise,
 			  bool new_sort_bitwise,
+			  bool old_recovery_deletes,
+			  bool new_recovery_deletes,
 			  const struct ceph_pg *pgid)
 {
 	return !osds_equal(old_acting, new_acting) ||
@@ -2084,7 +2091,8 @@ bool ceph_is_new_interval(const struct ceph_osds *old_acting,
 	       old_size != new_size ||
 	       old_min_size != new_min_size ||
 	       ceph_pg_is_split(pgid, old_pg_num, new_pg_num) ||
-	       old_sort_bitwise != new_sort_bitwise;
+	       old_sort_bitwise != new_sort_bitwise ||
+	       old_recovery_deletes != new_recovery_deletes;
 }
 
 static int calc_pg_rank(int osd, const struct ceph_osds *acting)
@@ -2300,10 +2308,17 @@ static u32 raw_pg_to_pps(struct ceph_pg_pool_info *pi,
 	}
 }
 
+/*
+ * Magic value used for a "default" fallback choose_args, used if the
+ * crush_choose_arg_map passed to do_crush() does not exist.  If this
+ * also doesn't exist, fall back to canonical weights.
+ */
+#define CEPH_DEFAULT_CHOOSE_ARGS	-1
+
 static int do_crush(struct ceph_osdmap *map, int ruleno, int x,
 		    int *result, int result_max,
 		    const __u32 *weight, int weight_max,
-		    u64 choose_args_index)
+		    s64 choose_args_index)
 {
 	struct crush_choose_arg_map *arg_map;
 	int r;
@@ -2312,6 +2327,9 @@ static int do_crush(struct ceph_osdmap *map, int ruleno, int x,
 
 	arg_map = lookup_choose_arg_map(&map->crush->choose_args,
 					choose_args_index);
+	if (!arg_map)
+		arg_map = lookup_choose_arg_map(&map->crush->choose_args,
+						CEPH_DEFAULT_CHOOSE_ARGS);
 
 	mutex_lock(&map->crush_workspace_mutex);
 	r = crush_do_rule(map->crush, ruleno, x, result, result_max,
@@ -2422,40 +2440,23 @@ static void apply_upmap(struct ceph_osdmap *osdmap,
 		for (i = 0; i < pg->pg_upmap.len; i++)
 			raw->osds[i] = pg->pg_upmap.osds[i];
 		raw->size = pg->pg_upmap.len;
-		return;
+		/* check and apply pg_upmap_items, if any */
 	}
 
 	pg = lookup_pg_mapping(&osdmap->pg_upmap_items, pgid);
 	if (pg) {
-		/*
-		 * Note: this approach does not allow a bidirectional swap,
-		 * e.g., [[1,2],[2,1]] applied to [0,1,2] -> [0,2,1].
-		 */
-		for (i = 0; i < pg->pg_upmap_items.len; i++) {
-			int from = pg->pg_upmap_items.from_to[i][0];
-			int to = pg->pg_upmap_items.from_to[i][1];
-			int pos = -1;
-			bool exists = false;
-
-			/* make sure replacement doesn't already appear */
-			for (j = 0; j < raw->size; j++) {
-				int osd = raw->osds[j];
-
-				if (osd == to) {
-					exists = true;
+		for (i = 0; i < raw->size; i++) {
+			for (j = 0; j < pg->pg_upmap_items.len; j++) {
+				int from = pg->pg_upmap_items.from_to[j][0];
+				int to = pg->pg_upmap_items.from_to[j][1];
+
+				if (from == raw->osds[i]) {
+					if (!(to != CRUSH_ITEM_NONE &&
+					      to < osdmap->max_osd &&
+					      osdmap->osd_weight[to] == 0))
+						raw->osds[i] = to;
 					break;
 				}
-				/* ignore mapping if target is marked out */
-				if (osd == from && pos < 0 &&
-				    !(to != CRUSH_ITEM_NONE &&
-				      to < osdmap->max_osd &&
-				      osdmap->osd_weight[to] == 0)) {
-					pos = j;
-				}
-			}
-			if (!exists && pos >= 0) {
-				raw->osds[pos] = to;
-				return;
 			}
 		}
 	}
diff --git a/net/compat.c b/net/compat.c
index aba929e5250f..6ded6c821d7a 100644
--- a/net/compat.c
+++ b/net/compat.c
@@ -37,21 +37,16 @@ int get_compat_msghdr(struct msghdr *kmsg,
 		      struct sockaddr __user **save_addr,
 		      struct iovec **iov)
 {
-	compat_uptr_t uaddr, uiov, tmp3;
-	compat_size_t nr_segs;
+	struct compat_msghdr msg;
 	ssize_t err;
 
-	if (!access_ok(VERIFY_READ, umsg, sizeof(*umsg)) ||
-	    __get_user(uaddr, &umsg->msg_name) ||
-	    __get_user(kmsg->msg_namelen, &umsg->msg_namelen) ||
-	    __get_user(uiov, &umsg->msg_iov) ||
-	    __get_user(nr_segs, &umsg->msg_iovlen) ||
-	    __get_user(tmp3, &umsg->msg_control) ||
-	    __get_user(kmsg->msg_controllen, &umsg->msg_controllen) ||
-	    __get_user(kmsg->msg_flags, &umsg->msg_flags))
+	if (copy_from_user(&msg, umsg, sizeof(*umsg)))
 		return -EFAULT;
 
-	if (!uaddr)
+	kmsg->msg_flags = msg.msg_flags;
+	kmsg->msg_namelen = msg.msg_namelen;
+
+	if (!msg.msg_name)
 		kmsg->msg_namelen = 0;
 
 	if (kmsg->msg_namelen < 0)
@@ -59,14 +54,16 @@ int get_compat_msghdr(struct msghdr *kmsg,
 
 	if (kmsg->msg_namelen > sizeof(struct sockaddr_storage))
 		kmsg->msg_namelen = sizeof(struct sockaddr_storage);
-	kmsg->msg_control = compat_ptr(tmp3);
+
+	kmsg->msg_control = compat_ptr(msg.msg_control);
+	kmsg->msg_controllen = msg.msg_controllen;
 
 	if (save_addr)
-		*save_addr = compat_ptr(uaddr);
+		*save_addr = compat_ptr(msg.msg_name);
 
-	if (uaddr && kmsg->msg_namelen) {
+	if (msg.msg_name && kmsg->msg_namelen) {
 		if (!save_addr) {
-			err = move_addr_to_kernel(compat_ptr(uaddr),
+			err = move_addr_to_kernel(compat_ptr(msg.msg_name),
 						  kmsg->msg_namelen,
 						  kmsg->msg_name);
 			if (err < 0)
@@ -77,13 +74,13 @@ int get_compat_msghdr(struct msghdr *kmsg,
 		kmsg->msg_namelen = 0;
 	}
 
-	if (nr_segs > UIO_MAXIOV)
+	if (msg.msg_iovlen > UIO_MAXIOV)
 		return -EMSGSIZE;
 
 	kmsg->msg_iocb = NULL;
 
 	return compat_import_iovec(save_addr ? READ : WRITE,
-				   compat_ptr(uiov), nr_segs,
+				   compat_ptr(msg.msg_iov), msg.msg_iovlen,
 				   UIO_FASTIOV, iov, &kmsg->msg_iter);
 }
 
@@ -316,15 +313,15 @@ struct sock_fprog __user *get_compat_bpf_fprog(char __user *optval)
 {
 	struct compat_sock_fprog __user *fprog32 = (struct compat_sock_fprog __user *)optval;
 	struct sock_fprog __user *kfprog = compat_alloc_user_space(sizeof(struct sock_fprog));
-	compat_uptr_t ptr;
-	u16 len;
-
-	if (!access_ok(VERIFY_READ, fprog32, sizeof(*fprog32)) ||
-	    !access_ok(VERIFY_WRITE, kfprog, sizeof(struct sock_fprog)) ||
-	    __get_user(len, &fprog32->len) ||
-	    __get_user(ptr, &fprog32->filter) ||
-	    __put_user(len, &kfprog->len) ||
-	    __put_user(compat_ptr(ptr), &kfprog->filter))
+	struct compat_sock_fprog f32;
+	struct sock_fprog f;
+
+	if (copy_from_user(&f32, fprog32, sizeof(*fprog32)))
+		return NULL;
+	memset(&f, 0, sizeof(f));
+	f.len = f32.len;
+	f.filter = compat_ptr(f32.filter);
+	if (copy_to_user(kfprog, &f, sizeof(struct sock_fprog)))
 		return NULL;
 
 	return kfprog;
diff --git a/net/core/datagram.c b/net/core/datagram.c
index 6877c43cc92d..a21ca8dee5ea 100644
--- a/net/core/datagram.c
+++ b/net/core/datagram.c
@@ -169,14 +169,20 @@ struct sk_buff *__skb_try_recv_from_queue(struct sock *sk,
 					  int *peeked, int *off, int *err,
 					  struct sk_buff **last)
 {
+	bool peek_at_off = false;
 	struct sk_buff *skb;
-	int _off = *off;
+	int _off = 0;
+
+	if (unlikely(flags & MSG_PEEK && *off >= 0)) {
+		peek_at_off = true;
+		_off = *off;
+	}
 
 	*last = queue->prev;
 	skb_queue_walk(queue, skb) {
 		if (flags & MSG_PEEK) {
-			if (_off >= skb->len && (skb->len || _off ||
-						 skb->peeked)) {
+			if (peek_at_off && _off >= skb->len &&
+			    (_off || skb->peeked)) {
 				_off -= skb->len;
 				continue;
 			}
@@ -203,7 +209,7 @@ struct sk_buff *__skb_try_recv_from_queue(struct sock *sk,
 /**
  *	__skb_try_recv_datagram - Receive a datagram skbuff
  *	@sk: socket
- *	@flags: MSG_ flags
+ *	@flags: MSG\_ flags
  *	@destructor: invoked under the receive lock on successful dequeue
  *	@peeked: returns non-zero if this packet has been seen before
  *	@off: an offset in bytes to peek skb from. Returns an offset
@@ -375,7 +381,7 @@ EXPORT_SYMBOL(__sk_queue_drop_skb);
  *	skb_kill_datagram - Free a datagram skbuff forcibly
  *	@sk: socket
  *	@skb: datagram skbuff
- *	@flags: MSG_ flags
+ *	@flags: MSG\_ flags
  *
  *	This function frees a datagram skbuff that was received by
  *	skb_recv_datagram.  The flags argument must match the one
@@ -809,7 +815,7 @@ EXPORT_SYMBOL(skb_copy_and_csum_datagram_msg);
  *	sequenced packet sockets providing the socket receive queue
  *	is only ever holding data ready to receive.
  *
- *	Note: when you _don't_ use this routine for this protocol,
+ *	Note: when you *don't* use this routine for this protocol,
  *	and you use a different write policy from sock_writeable()
  *	then please supply your own write_space callback.
  */
diff --git a/net/core/dev.c b/net/core/dev.c
index 02440518dd69..ce15a06d5558 100644
--- a/net/core/dev.c
+++ b/net/core/dev.c
@@ -2739,7 +2739,7 @@ static inline bool skb_needs_check(struct sk_buff *skb, bool tx_path)
 {
 	if (tx_path)
 		return skb->ip_summed != CHECKSUM_PARTIAL &&
-		       skb->ip_summed != CHECKSUM_NONE;
+		       skb->ip_summed != CHECKSUM_UNNECESSARY;
 
 	return skb->ip_summed == CHECKSUM_NONE;
 }
@@ -7384,7 +7384,7 @@ static int netif_alloc_rx_queues(struct net_device *dev)
 
 	BUG_ON(count < 1);
 
-	rx = kvzalloc(sz, GFP_KERNEL | __GFP_REPEAT);
+	rx = kvzalloc(sz, GFP_KERNEL | __GFP_RETRY_MAYFAIL);
 	if (!rx)
 		return -ENOMEM;
 
@@ -7424,7 +7424,7 @@ static int netif_alloc_netdev_queues(struct net_device *dev)
 	if (count < 1 || count > 0xffff)
 		return -EINVAL;
 
-	tx = kvzalloc(sz, GFP_KERNEL | __GFP_REPEAT);
+	tx = kvzalloc(sz, GFP_KERNEL | __GFP_RETRY_MAYFAIL);
 	if (!tx)
 		return -ENOMEM;
 
@@ -7965,7 +7965,7 @@ struct net_device *alloc_netdev_mqs(int sizeof_priv, const char *name,
 	/* ensure 32-byte alignment of whole construct */
 	alloc_size += NETDEV_ALIGN - 1;
 
-	p = kvzalloc(alloc_size, GFP_KERNEL | __GFP_REPEAT);
+	p = kvzalloc(alloc_size, GFP_KERNEL | __GFP_RETRY_MAYFAIL);
 	if (!p)
 		return NULL;
 
diff --git a/net/core/dev_ioctl.c b/net/core/dev_ioctl.c
index 82fd4c9c4a1b..709a4e6fb447 100644
--- a/net/core/dev_ioctl.c
+++ b/net/core/dev_ioctl.c
@@ -28,6 +28,7 @@ static int dev_ifname(struct net *net, struct ifreq __user *arg)
 
 	if (copy_from_user(&ifr, arg, sizeof(struct ifreq)))
 		return -EFAULT;
+	ifr.ifr_name[IFNAMSIZ-1] = 0;
 
 	error = netdev_get_name(net, ifr.ifr_name, ifr.ifr_ifindex);
 	if (error)
@@ -262,6 +263,8 @@ static int dev_ifsioc(struct net *net, struct ifreq *ifr, unsigned int cmd)
 		return dev_set_mtu(dev, ifr->ifr_mtu);
 
 	case SIOCSIFHWADDR:
+		if (dev->addr_len > sizeof(struct sockaddr))
+			return -EINVAL;
 		return dev_set_mac_address(dev, &ifr->ifr_hwaddr);
 
 	case SIOCSIFHWBROADCAST:
@@ -424,6 +427,8 @@ int dev_ioctl(struct net *net, unsigned int cmd, void __user *arg)
 		if (copy_from_user(&iwr, arg, sizeof(iwr)))
 			return -EFAULT;
 
+		iwr.ifr_name[sizeof(iwr.ifr_name) - 1] = 0;
+
 		return wext_handle_ioctl(net, &iwr, cmd, arg);
 	}
 
diff --git a/net/core/fib_rules.c b/net/core/fib_rules.c
index a0093e1b0235..fdcb1bcd2afa 100644
--- a/net/core/fib_rules.c
+++ b/net/core/fib_rules.c
@@ -400,6 +400,7 @@ int fib_nl_newrule(struct sk_buff *skb, struct nlmsghdr *nlh,
 		err = -ENOMEM;
 		goto errout;
 	}
+	refcount_set(&rule->refcnt, 1);
 	rule->fr_net = net;
 
 	rule->pref = tb[FRA_PRIORITY] ? nla_get_u32(tb[FRA_PRIORITY])
@@ -517,8 +518,6 @@ int fib_nl_newrule(struct sk_buff *skb, struct nlmsghdr *nlh,
 		last = r;
 	}
 
-	refcount_set(&rule->refcnt, 1);
-
 	if (last)
 		list_add_rcu(&rule->list, &last->list);
 	else
diff --git a/net/core/filter.c b/net/core/filter.c
index c7f737058d89..6280a602604c 100644
--- a/net/core/filter.c
+++ b/net/core/filter.c
@@ -2248,7 +2248,7 @@ static int bpf_skb_adjust_net(struct sk_buff *skb, s32 len_diff)
 		       bpf_skb_net_grow(skb, len_diff_abs);
 
 	bpf_compute_data_end(skb);
-	return 0;
+	return ret;
 }
 
 BPF_CALL_4(bpf_skb_adjust_room, struct sk_buff *, skb, s32, len_diff,
@@ -3505,6 +3505,7 @@ static u32 bpf_convert_ctx_access(enum bpf_access_type type,
 					      bpf_target_off(struct sk_buff, tc_index, 2,
 							     target_size));
 #else
+		*target_size = 2;
 		if (type == BPF_WRITE)
 			*insn++ = BPF_MOV64_REG(si->dst_reg, si->dst_reg);
 		else
@@ -3520,6 +3521,7 @@ static u32 bpf_convert_ctx_access(enum bpf_access_type type,
 		*insn++ = BPF_JMP_IMM(BPF_JGE, si->dst_reg, MIN_NAPI_ID, 1);
 		*insn++ = BPF_MOV64_IMM(si->dst_reg, 0);
 #else
+		*target_size = 4;
 		*insn++ = BPF_MOV64_IMM(si->dst_reg, 0);
 #endif
 		break;
diff --git a/net/core/neighbour.c b/net/core/neighbour.c
index e31fc11a8000..d0713627deb6 100644
--- a/net/core/neighbour.c
+++ b/net/core/neighbour.c
@@ -347,8 +347,7 @@ out_entries:
 
 static void neigh_get_hash_rnd(u32 *x)
 {
-	get_random_bytes(x, sizeof(*x));
-	*x |= 1;
+	*x = get_random_u32() | 1;
 }
 
 static struct neigh_hash_table *neigh_hash_alloc(unsigned int shift)
diff --git a/net/core/netpoll.c b/net/core/netpoll.c
index d3408a693166..912731bed7b7 100644
--- a/net/core/netpoll.c
+++ b/net/core/netpoll.c
@@ -277,7 +277,7 @@ static void zap_completion_queue(void)
 			struct sk_buff *skb = clist;
 			clist = clist->next;
 			if (!skb_irq_freeable(skb)) {
-				refcount_inc(&skb->users);
+				refcount_set(&skb->users, 1);
 				dev_kfree_skb_any(skb); /* put this one back */
 			} else {
 				__kfree_skb(skb);
@@ -666,7 +666,7 @@ int netpoll_setup(struct netpoll *np)
 	int err;
 
 	rtnl_lock();
-	if (np->dev_name) {
+	if (np->dev_name[0]) {
 		struct net *net = current->nsproxy->net_ns;
 		ndev = __dev_get_by_name(net, np->dev_name);
 	}
diff --git a/net/core/rtnetlink.c b/net/core/rtnetlink.c
index d1ba90980be1..9201e3621351 100644
--- a/net/core/rtnetlink.c
+++ b/net/core/rtnetlink.c
@@ -2031,7 +2031,8 @@ static int do_setlink(const struct sk_buff *skb,
 		struct sockaddr *sa;
 		int len;
 
-		len = sizeof(sa_family_t) + dev->addr_len;
+		len = sizeof(sa_family_t) + max_t(size_t, dev->addr_len,
+						  sizeof(*sa));
 		sa = kmalloc(len, GFP_KERNEL);
 		if (!sa) {
 			err = -ENOMEM;
@@ -4241,6 +4242,7 @@ static int rtnetlink_event(struct notifier_block *this, unsigned long event, voi
 
 	switch (event) {
 	case NETDEV_REBOOT:
+	case NETDEV_CHANGEADDR:
 	case NETDEV_CHANGENAME:
 	case NETDEV_FEAT_CHANGE:
 	case NETDEV_BONDING_FAILOVER:
diff --git a/net/core/skbuff.c b/net/core/skbuff.c
index 8b11341ed69a..f990eb8b30a9 100644
--- a/net/core/skbuff.c
+++ b/net/core/skbuff.c
@@ -4747,7 +4747,7 @@ struct sk_buff *alloc_skb_with_frags(unsigned long header_len,
 
 	gfp_head = gfp_mask;
 	if (gfp_head & __GFP_DIRECT_RECLAIM)
-		gfp_head |= __GFP_REPEAT;
+		gfp_head |= __GFP_RETRY_MAYFAIL;
 
 	*errcode = -ENOBUFS;
 	skb = alloc_skb(header_len, gfp_head);
diff --git a/net/dccp/feat.c b/net/dccp/feat.c
index 1704948e6a12..f227f002c73d 100644
--- a/net/dccp/feat.c
+++ b/net/dccp/feat.c
@@ -1471,9 +1471,12 @@ int dccp_feat_init(struct sock *sk)
 	 * singleton values (which always leads to failure).
 	 * These settings can still (later) be overridden via sockopts.
 	 */
-	if (ccid_get_builtin_ccids(&tx.val, &tx.len) ||
-	    ccid_get_builtin_ccids(&rx.val, &rx.len))
+	if (ccid_get_builtin_ccids(&tx.val, &tx.len))
 		return -ENOBUFS;
+	if (ccid_get_builtin_ccids(&rx.val, &rx.len)) {
+		kfree(tx.val);
+		return -ENOBUFS;
+	}
 
 	if (!dccp_feat_prefer(sysctl_dccp_tx_ccid, tx.val, tx.len) ||
 	    !dccp_feat_prefer(sysctl_dccp_rx_ccid, rx.val, rx.len))
diff --git a/net/dccp/input.c b/net/dccp/input.c
index 4a05d7876850..fa6be9750bb4 100644
--- a/net/dccp/input.c
+++ b/net/dccp/input.c
@@ -126,7 +126,7 @@ static int dccp_rcv_closereq(struct sock *sk, struct sk_buff *skb)
 
 static u16 dccp_reset_code_convert(const u8 code)
 {
-	const u16 error_code[] = {
+	static const u16 error_code[] = {
 	[DCCP_RESET_CODE_CLOSED]	     = 0,	/* normal termination */
 	[DCCP_RESET_CODE_UNSPECIFIED]	     = 0,	/* nothing known */
 	[DCCP_RESET_CODE_ABORTED]	     = ECONNRESET,
diff --git a/net/dccp/ipv4.c b/net/dccp/ipv4.c
index f85d901f4e3f..1b202f16531f 100644
--- a/net/dccp/ipv4.c
+++ b/net/dccp/ipv4.c
@@ -631,6 +631,7 @@ int dccp_v4_conn_request(struct sock *sk, struct sk_buff *skb)
 		goto drop_and_free;
 
 	inet_csk_reqsk_queue_hash_add(sk, req, DCCP_TIMEOUT_INIT);
+	reqsk_put(req);
 	return 0;
 
 drop_and_free:
diff --git a/net/dccp/ipv6.c b/net/dccp/ipv6.c
index c376af5bfdfb..1b58eac8aad3 100644
--- a/net/dccp/ipv6.c
+++ b/net/dccp/ipv6.c
@@ -380,6 +380,7 @@ static int dccp_v6_conn_request(struct sock *sk, struct sk_buff *skb)
 		goto drop_and_free;
 
 	inet_csk_reqsk_queue_hash_add(sk, req, DCCP_TIMEOUT_INIT);
+	reqsk_put(req);
 	return 0;
 
 drop_and_free:
diff --git a/net/dccp/proto.c b/net/dccp/proto.c
index 9fe25bf63296..b68168fcc06a 100644
--- a/net/dccp/proto.c
+++ b/net/dccp/proto.c
@@ -24,6 +24,7 @@
 #include <net/checksum.h>
 
 #include <net/inet_sock.h>
+#include <net/inet_common.h>
 #include <net/sock.h>
 #include <net/xfrm.h>
 
@@ -170,6 +171,15 @@ const char *dccp_packet_name(const int type)
 
 EXPORT_SYMBOL_GPL(dccp_packet_name);
 
+static void dccp_sk_destruct(struct sock *sk)
+{
+	struct dccp_sock *dp = dccp_sk(sk);
+
+	ccid_hc_tx_delete(dp->dccps_hc_tx_ccid, sk);
+	dp->dccps_hc_tx_ccid = NULL;
+	inet_sock_destruct(sk);
+}
+
 int dccp_init_sock(struct sock *sk, const __u8 ctl_sock_initialized)
 {
 	struct dccp_sock *dp = dccp_sk(sk);
@@ -179,6 +189,7 @@ int dccp_init_sock(struct sock *sk, const __u8 ctl_sock_initialized)
 	icsk->icsk_syn_retries	= sysctl_dccp_request_retries;
 	sk->sk_state		= DCCP_CLOSED;
 	sk->sk_write_space	= dccp_write_space;
+	sk->sk_destruct		= dccp_sk_destruct;
 	icsk->icsk_sync_mss	= dccp_sync_mss;
 	dp->dccps_mss_cache	= 536;
 	dp->dccps_rate_last	= jiffies;
@@ -201,10 +212,7 @@ void dccp_destroy_sock(struct sock *sk)
 {
 	struct dccp_sock *dp = dccp_sk(sk);
 
-	/*
-	 * DCCP doesn't use sk_write_queue, just sk_send_head
-	 * for retransmissions
-	 */
+	__skb_queue_purge(&sk->sk_write_queue);
 	if (sk->sk_send_head != NULL) {
 		kfree_skb(sk->sk_send_head);
 		sk->sk_send_head = NULL;
@@ -222,8 +230,7 @@ void dccp_destroy_sock(struct sock *sk)
 		dp->dccps_hc_rx_ackvec = NULL;
 	}
 	ccid_hc_rx_delete(dp->dccps_hc_rx_ccid, sk);
-	ccid_hc_tx_delete(dp->dccps_hc_tx_ccid, sk);
-	dp->dccps_hc_rx_ccid = dp->dccps_hc_tx_ccid = NULL;
+	dp->dccps_hc_rx_ccid = NULL;
 
 	/* clean up feature negotiation state */
 	dccp_feat_list_purge(&dp->dccps_featneg);
diff --git a/net/dsa/dsa2.c b/net/dsa/dsa2.c
index 56e46090526b..c442051d5a55 100644
--- a/net/dsa/dsa2.c
+++ b/net/dsa/dsa2.c
@@ -509,21 +509,22 @@ static int dsa_cpu_parse(struct dsa_port *port, u32 index,
 		dst->cpu_dp->netdev = ethernet_dev;
 	}
 
+	/* Initialize cpu_port_mask now for drv->setup()
+	 * to have access to a correct value, just like what
+	 * net/dsa/dsa.c::dsa_switch_setup_one does.
+	 */
+	ds->cpu_port_mask |= BIT(index);
+
 	tag_protocol = ds->ops->get_tag_protocol(ds);
 	dst->tag_ops = dsa_resolve_tag_protocol(tag_protocol);
 	if (IS_ERR(dst->tag_ops)) {
 		dev_warn(ds->dev, "No tagger for this switch\n");
+		ds->cpu_port_mask &= ~BIT(index);
 		return PTR_ERR(dst->tag_ops);
 	}
 
 	dst->rcv = dst->tag_ops->rcv;
 
-	/* Initialize cpu_port_mask now for drv->setup()
-	 * to have access to a correct value, just like what
-	 * net/dsa/dsa.c::dsa_switch_setup_one does.
-	 */
-	ds->cpu_port_mask |= BIT(index);
-
 	return 0;
 }
 
diff --git a/net/dsa/tag_ksz.c b/net/dsa/tag_ksz.c
index fab41de8e983..de66ca8e6201 100644
--- a/net/dsa/tag_ksz.c
+++ b/net/dsa/tag_ksz.c
@@ -42,6 +42,9 @@ static struct sk_buff *ksz_xmit(struct sk_buff *skb, struct net_device *dev)
 	padlen = (skb->len >= ETH_ZLEN) ? 0 : ETH_ZLEN - skb->len;
 
 	if (skb_tailroom(skb) >= padlen + KSZ_INGRESS_TAG_LEN) {
+		if (skb_put_padto(skb, skb->len + padlen))
+			return NULL;
+
 		nskb = skb;
 	} else {
 		nskb = alloc_skb(NET_IP_ALIGN + skb->len +
@@ -56,13 +59,15 @@ static struct sk_buff *ksz_xmit(struct sk_buff *skb, struct net_device *dev)
 		skb_set_transport_header(nskb,
 					 skb_transport_header(skb) - skb->head);
 		skb_copy_and_csum_dev(skb, skb_put(nskb, skb->len));
+
+		if (skb_put_padto(nskb, nskb->len + padlen)) {
+			kfree_skb(nskb);
+			return NULL;
+		}
+
 		kfree_skb(skb);
 	}
 
-	/* skb is freed when it fails */
-	if (skb_put_padto(nskb, nskb->len + padlen))
-		return NULL;
-
 	tag = skb_put(nskb, KSZ_INGRESS_TAG_LEN);
 	tag[0] = 0;
 	tag[1] = 1 << p->dp->index; /* destination port */
diff --git a/net/ipv4/af_inet.c b/net/ipv4/af_inet.c
index 76c2077c3f5b..2e548eca3489 100644
--- a/net/ipv4/af_inet.c
+++ b/net/ipv4/af_inet.c
@@ -1731,6 +1731,13 @@ static __net_init int inet_init_net(struct net *net)
 	net->ipv4.sysctl_ip_prot_sock = PROT_SOCK;
 #endif
 
+	/* Some igmp sysctl, whose values are always used */
+	net->ipv4.sysctl_igmp_max_memberships = 20;
+	net->ipv4.sysctl_igmp_max_msf = 10;
+	/* IGMP reports for link-local multicast groups are enabled by default */
+	net->ipv4.sysctl_igmp_llm_reports = 1;
+	net->ipv4.sysctl_igmp_qrv = 2;
+
 	return 0;
 }
 
diff --git a/net/ipv4/cipso_ipv4.c b/net/ipv4/cipso_ipv4.c
index c4c6e1969ed0..2ae8f54cb321 100644
--- a/net/ipv4/cipso_ipv4.c
+++ b/net/ipv4/cipso_ipv4.c
@@ -1523,9 +1523,17 @@ unsigned char *cipso_v4_optptr(const struct sk_buff *skb)
 	int taglen;
 
 	for (optlen = iph->ihl*4 - sizeof(struct iphdr); optlen > 0; ) {
-		if (optptr[0] == IPOPT_CIPSO)
+		switch (optptr[0]) {
+		case IPOPT_CIPSO:
 			return optptr;
-		taglen = optptr[1];
+		case IPOPT_END:
+			return NULL;
+		case IPOPT_NOOP:
+			taglen = 1;
+			break;
+		default:
+			taglen = optptr[1];
+		}
 		optlen -= taglen;
 		optptr += taglen;
 	}
diff --git a/net/ipv4/fib_frontend.c b/net/ipv4/fib_frontend.c
index 4e678fa892dd..044d2a159a3c 100644
--- a/net/ipv4/fib_frontend.c
+++ b/net/ipv4/fib_frontend.c
@@ -1334,13 +1334,14 @@ static struct pernet_operations fib_net_ops = {
 
 void __init ip_fib_init(void)
 {
-	rtnl_register(PF_INET, RTM_NEWROUTE, inet_rtm_newroute, NULL, NULL);
-	rtnl_register(PF_INET, RTM_DELROUTE, inet_rtm_delroute, NULL, NULL);
-	rtnl_register(PF_INET, RTM_GETROUTE, NULL, inet_dump_fib, NULL);
+	fib_trie_init();
 
 	register_pernet_subsys(&fib_net_ops);
+
 	register_netdevice_notifier(&fib_netdev_notifier);
 	register_inetaddr_notifier(&fib_inetaddr_notifier);
 
-	fib_trie_init();
+	rtnl_register(PF_INET, RTM_NEWROUTE, inet_rtm_newroute, NULL, NULL);
+	rtnl_register(PF_INET, RTM_DELROUTE, inet_rtm_delroute, NULL, NULL);
+	rtnl_register(PF_INET, RTM_GETROUTE, NULL, inet_dump_fib, NULL);
 }
diff --git a/net/ipv4/fib_semantics.c b/net/ipv4/fib_semantics.c
index 222100103808..ec3a9ce281a6 100644
--- a/net/ipv4/fib_semantics.c
+++ b/net/ipv4/fib_semantics.c
@@ -1083,15 +1083,17 @@ struct fib_info *fib_create_info(struct fib_config *cfg,
 	fi = kzalloc(sizeof(*fi)+nhs*sizeof(struct fib_nh), GFP_KERNEL);
 	if (!fi)
 		goto failure;
-	fib_info_cnt++;
 	if (cfg->fc_mx) {
 		fi->fib_metrics = kzalloc(sizeof(*fi->fib_metrics), GFP_KERNEL);
-		if (!fi->fib_metrics)
-			goto failure;
+		if (unlikely(!fi->fib_metrics)) {
+			kfree(fi);
+			return ERR_PTR(err);
+		}
 		atomic_set(&fi->fib_metrics->refcnt, 1);
-	} else
+	} else {
 		fi->fib_metrics = (struct dst_metrics *)&dst_default_metrics;
-
+	}
+	fib_info_cnt++;
 	fi->fib_net = net;
 	fi->fib_protocol = cfg->fc_protocol;
 	fi->fib_scope = cfg->fc_scope;
@@ -1452,7 +1454,7 @@ static int call_fib_nh_notifiers(struct fib_nh *fib_nh,
 		return call_fib_notifiers(dev_net(fib_nh->nh_dev), event_type,
 					  &info.info);
 	case FIB_EVENT_NH_DEL:
-		if ((IN_DEV_IGNORE_ROUTES_WITH_LINKDOWN(in_dev) &&
+		if ((in_dev && IN_DEV_IGNORE_ROUTES_WITH_LINKDOWN(in_dev) &&
 		     fib_nh->nh_flags & RTNH_F_LINKDOWN) ||
 		    (fib_nh->nh_flags & RTNH_F_DEAD))
 			return call_fib_notifiers(dev_net(fib_nh->nh_dev),
diff --git a/net/ipv4/fou.c b/net/ipv4/fou.c
index 8e0257d01200..1540db65241a 100644
--- a/net/ipv4/fou.c
+++ b/net/ipv4/fou.c
@@ -450,6 +450,7 @@ out_unlock:
 out:
 	NAPI_GRO_CB(skb)->flush |= flush;
 	skb_gro_remcsum_cleanup(skb, &grc);
+	skb->remcsum_offload = 0;
 
 	return pp;
 }
diff --git a/net/ipv4/igmp.c b/net/ipv4/igmp.c
index 28f14afd0dd3..caf2f1101d02 100644
--- a/net/ipv4/igmp.c
+++ b/net/ipv4/igmp.c
@@ -1007,10 +1007,18 @@ int igmp_rcv(struct sk_buff *skb)
 {
 	/* This basically follows the spec line by line -- see RFC1112 */
 	struct igmphdr *ih;
-	struct in_device *in_dev = __in_dev_get_rcu(skb->dev);
+	struct net_device *dev = skb->dev;
+	struct in_device *in_dev;
 	int len = skb->len;
 	bool dropped = true;
 
+	if (netif_is_l3_master(dev)) {
+		dev = dev_get_by_index_rcu(dev_net(dev), IPCB(skb)->iif);
+		if (!dev)
+			goto drop;
+	}
+
+	in_dev = __in_dev_get_rcu(dev);
 	if (!in_dev)
 		goto drop;
 
@@ -2974,12 +2982,6 @@ static int __net_init igmp_net_init(struct net *net)
 		goto out_sock;
 	}
 
-	/* Sysctl initialization */
-	net->ipv4.sysctl_igmp_max_memberships = 20;
-	net->ipv4.sysctl_igmp_max_msf = 10;
-	/* IGMP reports for link-local multicast groups are enabled by default */
-	net->ipv4.sysctl_igmp_llm_reports = 1;
-	net->ipv4.sysctl_igmp_qrv = 2;
 	return 0;
 
 out_sock:
diff --git a/net/ipv4/ip_output.c b/net/ipv4/ip_output.c
index 7eb252dcecee..e153c40c2436 100644
--- a/net/ipv4/ip_output.c
+++ b/net/ipv4/ip_output.c
@@ -599,6 +599,7 @@ int ip_do_fragment(struct net *net, struct sock *sk, struct sk_buff *skb,
 	hlen = iph->ihl * 4;
 	mtu = mtu - hlen;	/* Size of data space */
 	IPCB(skb)->flags |= IPSKB_FRAG_COMPLETE;
+	ll_rs = LL_RESERVED_SPACE(rt->dst.dev);
 
 	/* When frag_list is given, use it. First, check its validity:
 	 * some transformers could create wrong frag_list or break existing
@@ -614,14 +615,15 @@ int ip_do_fragment(struct net *net, struct sock *sk, struct sk_buff *skb,
 		if (first_len - hlen > mtu ||
 		    ((first_len - hlen) & 7) ||
 		    ip_is_fragment(iph) ||
-		    skb_cloned(skb))
+		    skb_cloned(skb) ||
+		    skb_headroom(skb) < ll_rs)
 			goto slow_path;
 
 		skb_walk_frags(skb, frag) {
 			/* Correct geometry. */
 			if (frag->len > mtu ||
 			    ((frag->len & 7) && frag->next) ||
-			    skb_headroom(frag) < hlen)
+			    skb_headroom(frag) < hlen + ll_rs)
 				goto slow_path_clean;
 
 			/* Partially cloned skb? */
@@ -711,8 +713,6 @@ slow_path:
 	left = skb->len - hlen;		/* Space per frame */
 	ptr = hlen;		/* Where to start from */
 
-	ll_rs = LL_RESERVED_SPACE(rt->dst.dev);
-
 	/*
 	 *	Fragment the datagram.
 	 */
@@ -965,11 +965,12 @@ static int __ip_append_data(struct sock *sk,
 		csummode = CHECKSUM_PARTIAL;
 
 	cork->length += length;
-	if ((((length + (skb ? skb->len : fragheaderlen)) > mtu) ||
-	     (skb && skb_is_gso(skb))) &&
+	if ((skb && skb_is_gso(skb)) ||
+	    (((length + (skb ? skb->len : fragheaderlen)) > mtu) &&
+	    (skb_queue_len(queue) <= 1) &&
 	    (sk->sk_protocol == IPPROTO_UDP) &&
 	    (rt->dst.dev->features & NETIF_F_UFO) && !dst_xfrm(&rt->dst) &&
-	    (sk->sk_type == SOCK_DGRAM) && !sk->sk_no_check_tx) {
+	    (sk->sk_type == SOCK_DGRAM) && !sk->sk_no_check_tx)) {
 		err = ip_ufo_append_data(sk, queue, getfrag, from, length,
 					 hh_len, fragheaderlen, transhdrlen,
 					 maxfraglen, flags);
@@ -1288,6 +1289,7 @@ ssize_t	ip_append_page(struct sock *sk, struct flowi4 *fl4, struct page *page,
 		return -EINVAL;
 
 	if ((size + skb->len > mtu) &&
+	    (skb_queue_len(&sk->sk_write_queue) == 1) &&
 	    (sk->sk_protocol == IPPROTO_UDP) &&
 	    (rt->dst.dev->features & NETIF_F_UFO)) {
 		if (skb->ip_summed != CHECKSUM_PARTIAL)
diff --git a/net/ipv4/ipmr.c b/net/ipv4/ipmr.c
index bb909f1d7537..06863ea3fc5b 100644
--- a/net/ipv4/ipmr.c
+++ b/net/ipv4/ipmr.c
@@ -2431,8 +2431,8 @@ static int ipmr_rtm_getroute(struct sk_buff *in_skb, struct nlmsghdr *nlh,
 	tableid = tb[RTA_TABLE] ? nla_get_u32(tb[RTA_TABLE]) : 0;
 
 	mrt = ipmr_get_table(net, tableid ? tableid : RT_TABLE_DEFAULT);
-	if (IS_ERR(mrt)) {
-		err = PTR_ERR(mrt);
+	if (!mrt) {
+		err = -ENOENT;
 		goto errout_free;
 	}
 
diff --git a/net/ipv4/netfilter/nf_tables_arp.c b/net/ipv4/netfilter/nf_tables_arp.c
index 805c8ddfe860..4bbc273b45e8 100644
--- a/net/ipv4/netfilter/nf_tables_arp.c
+++ b/net/ipv4/netfilter/nf_tables_arp.c
@@ -72,8 +72,7 @@ static const struct nf_chain_type filter_arp = {
 	.family		= NFPROTO_ARP,
 	.owner		= THIS_MODULE,
 	.hook_mask	= (1 << NF_ARP_IN) |
-			  (1 << NF_ARP_OUT) |
-			  (1 << NF_ARP_FORWARD),
+			  (1 << NF_ARP_OUT),
 };
 
 static int __init nf_tables_arp_init(void)
diff --git a/net/ipv4/route.c b/net/ipv4/route.c
index c816cd53f7fc..2331de20ca50 100644
--- a/net/ipv4/route.c
+++ b/net/ipv4/route.c
@@ -1267,7 +1267,7 @@ static unsigned int ipv4_mtu(const struct dst_entry *dst)
 	if (mtu)
 		return mtu;
 
-	mtu = dst->dev->mtu;
+	mtu = READ_ONCE(dst->dev->mtu);
 
 	if (unlikely(dst_metric_locked(dst, RTAX_MTU))) {
 		if (rt->rt_uses_gateway && mtu > 576)
@@ -2750,26 +2750,34 @@ static int inet_rtm_getroute(struct sk_buff *in_skb, struct nlmsghdr *nlh,
 		err = 0;
 		if (IS_ERR(rt))
 			err = PTR_ERR(rt);
+		else
+			skb_dst_set(skb, &rt->dst);
 	}
 
 	if (err)
 		goto errout_free;
 
-	skb_dst_set(skb, &rt->dst);
 	if (rtm->rtm_flags & RTM_F_NOTIFY)
 		rt->rt_flags |= RTCF_NOTIFY;
 
 	if (rtm->rtm_flags & RTM_F_LOOKUP_TABLE)
 		table_id = rt->rt_table_id;
 
-	if (rtm->rtm_flags & RTM_F_FIB_MATCH)
+	if (rtm->rtm_flags & RTM_F_FIB_MATCH) {
+		if (!res.fi) {
+			err = fib_props[res.type].error;
+			if (!err)
+				err = -EHOSTUNREACH;
+			goto errout_free;
+		}
 		err = fib_dump_info(skb, NETLINK_CB(in_skb).portid,
 				    nlh->nlmsg_seq, RTM_NEWROUTE, table_id,
 				    rt->rt_type, res.prefix, res.prefixlen,
 				    fl4.flowi4_tos, res.fi, 0);
-	else
+	} else {
 		err = rt_fill_info(net, dst, src, table_id, &fl4, skb,
 				   NETLINK_CB(in_skb).portid, nlh->nlmsg_seq);
+	}
 	if (err < 0)
 		goto errout_free;
 
@@ -2979,8 +2987,7 @@ static __net_init int rt_genid_init(struct net *net)
 {
 	atomic_set(&net->ipv4.rt_genid, 0);
 	atomic_set(&net->fnhe_genid, 0);
-	get_random_bytes(&net->ipv4.dev_addr_genid,
-			 sizeof(net->ipv4.dev_addr_genid));
+	atomic_set(&net->ipv4.dev_addr_genid, get_random_int());
 	return 0;
 }
 
diff --git a/net/ipv4/syncookies.c b/net/ipv4/syncookies.c
index 0905cf04c2a4..03ad8778c395 100644
--- a/net/ipv4/syncookies.c
+++ b/net/ipv4/syncookies.c
@@ -335,6 +335,7 @@ struct sock *cookie_v4_check(struct sock *sk, struct sk_buff *skb)
 	treq->rcv_isn		= ntohl(th->seq) - 1;
 	treq->snt_isn		= cookie;
 	treq->ts_off		= 0;
+	treq->txhash		= net_tx_rndhash();
 	req->mss		= mss;
 	ireq->ir_num		= ntohs(th->dest);
 	ireq->ir_rmt_port	= th->source;
diff --git a/net/ipv4/tcp_bbr.c b/net/ipv4/tcp_bbr.c
index dbcc9352a48f..69ee877574d0 100644
--- a/net/ipv4/tcp_bbr.c
+++ b/net/ipv4/tcp_bbr.c
@@ -112,7 +112,8 @@ struct bbr {
 		cwnd_gain:10,	/* current gain for setting cwnd */
 		full_bw_cnt:3,	/* number of rounds without large bw gains */
 		cycle_idx:3,	/* current index in pacing_gain cycle array */
-		unused_b:6;
+		has_seen_rtt:1, /* have we seen an RTT sample yet? */
+		unused_b:5;
 	u32	prior_cwnd;	/* prior cwnd upon entering loss recovery */
 	u32	full_bw;	/* recent bw, to estimate if pipe is full */
 };
@@ -211,6 +212,35 @@ static u64 bbr_rate_bytes_per_sec(struct sock *sk, u64 rate, int gain)
 	return rate >> BW_SCALE;
 }
 
+/* Convert a BBR bw and gain factor to a pacing rate in bytes per second. */
+static u32 bbr_bw_to_pacing_rate(struct sock *sk, u32 bw, int gain)
+{
+	u64 rate = bw;
+
+	rate = bbr_rate_bytes_per_sec(sk, rate, gain);
+	rate = min_t(u64, rate, sk->sk_max_pacing_rate);
+	return rate;
+}
+
+/* Initialize pacing rate to: high_gain * init_cwnd / RTT. */
+static void bbr_init_pacing_rate_from_rtt(struct sock *sk)
+{
+	struct tcp_sock *tp = tcp_sk(sk);
+	struct bbr *bbr = inet_csk_ca(sk);
+	u64 bw;
+	u32 rtt_us;
+
+	if (tp->srtt_us) {		/* any RTT sample yet? */
+		rtt_us = max(tp->srtt_us >> 3, 1U);
+		bbr->has_seen_rtt = 1;
+	} else {			 /* no RTT sample yet */
+		rtt_us = USEC_PER_MSEC;	 /* use nominal default RTT */
+	}
+	bw = (u64)tp->snd_cwnd * BW_UNIT;
+	do_div(bw, rtt_us);
+	sk->sk_pacing_rate = bbr_bw_to_pacing_rate(sk, bw, bbr_high_gain);
+}
+
 /* Pace using current bw estimate and a gain factor. In order to help drive the
  * network toward lower queues while maintaining high utilization and low
  * latency, the average pacing rate aims to be slightly (~1%) lower than the
@@ -220,12 +250,13 @@ static u64 bbr_rate_bytes_per_sec(struct sock *sk, u64 rate, int gain)
  */
 static void bbr_set_pacing_rate(struct sock *sk, u32 bw, int gain)
 {
+	struct tcp_sock *tp = tcp_sk(sk);
 	struct bbr *bbr = inet_csk_ca(sk);
-	u64 rate = bw;
+	u32 rate = bbr_bw_to_pacing_rate(sk, bw, gain);
 
-	rate = bbr_rate_bytes_per_sec(sk, rate, gain);
-	rate = min_t(u64, rate, sk->sk_max_pacing_rate);
-	if (bbr->mode != BBR_STARTUP || rate > sk->sk_pacing_rate)
+	if (unlikely(!bbr->has_seen_rtt && tp->srtt_us))
+		bbr_init_pacing_rate_from_rtt(sk);
+	if (bbr_full_bw_reached(sk) || rate > sk->sk_pacing_rate)
 		sk->sk_pacing_rate = rate;
 }
 
@@ -798,7 +829,6 @@ static void bbr_init(struct sock *sk)
 {
 	struct tcp_sock *tp = tcp_sk(sk);
 	struct bbr *bbr = inet_csk_ca(sk);
-	u64 bw;
 
 	bbr->prior_cwnd = 0;
 	bbr->tso_segs_goal = 0;	 /* default segs per skb until first ACK */
@@ -814,11 +844,8 @@ static void bbr_init(struct sock *sk)
 
 	minmax_reset(&bbr->bw, bbr->rtt_cnt, 0);  /* init max bw to 0 */
 
-	/* Initialize pacing rate to: high_gain * init_cwnd / RTT. */
-	bw = (u64)tp->snd_cwnd * BW_UNIT;
-	do_div(bw, (tp->srtt_us >> 3) ? : USEC_PER_MSEC);
-	sk->sk_pacing_rate = 0;		/* force an update of sk_pacing_rate */
-	bbr_set_pacing_rate(sk, bw, bbr_high_gain);
+	bbr->has_seen_rtt = 0;
+	bbr_init_pacing_rate_from_rtt(sk);
 
 	bbr->restore_cwnd = 0;
 	bbr->round_start = 0;
diff --git a/net/ipv4/tcp_input.c b/net/ipv4/tcp_input.c
index 2920e0cb09f8..bab7f0493098 100644
--- a/net/ipv4/tcp_input.c
+++ b/net/ipv4/tcp_input.c
@@ -107,6 +107,7 @@ int sysctl_tcp_invalid_ratelimit __read_mostly = HZ/2;
 #define FLAG_ORIG_SACK_ACKED	0x200 /* Never retransmitted data are (s)acked	*/
 #define FLAG_SND_UNA_ADVANCED	0x400 /* Snd_una was changed (!= FLAG_DATA_ACKED) */
 #define FLAG_DSACKING_ACK	0x800 /* SACK blocks contained D-SACK info */
+#define FLAG_SET_XMIT_TIMER	0x1000 /* Set TLP or RTO timer */
 #define FLAG_SACK_RENEGING	0x2000 /* snd_una advanced to a sacked seq */
 #define FLAG_UPDATE_TS_RECENT	0x4000 /* tcp_replace_ts_recent() */
 #define FLAG_NO_CHALLENGE_ACK	0x8000 /* do not call tcp_send_challenge_ack()	*/
@@ -2520,8 +2521,8 @@ static inline void tcp_end_cwnd_reduction(struct sock *sk)
 		return;
 
 	/* Reset cwnd to ssthresh in CWR or Recovery (unless it's undone) */
-	if (inet_csk(sk)->icsk_ca_state == TCP_CA_CWR ||
-	    (tp->undo_marker && tp->snd_ssthresh < TCP_INFINITE_SSTHRESH)) {
+	if (tp->snd_ssthresh < TCP_INFINITE_SSTHRESH &&
+	    (inet_csk(sk)->icsk_ca_state == TCP_CA_CWR || tp->undo_marker)) {
 		tp->snd_cwnd = tp->snd_ssthresh;
 		tp->snd_cwnd_stamp = tcp_jiffies32;
 	}
@@ -3004,21 +3005,24 @@ void tcp_rearm_rto(struct sock *sk)
 		/* Offset the time elapsed after installing regular RTO */
 		if (icsk->icsk_pending == ICSK_TIME_REO_TIMEOUT ||
 		    icsk->icsk_pending == ICSK_TIME_LOSS_PROBE) {
-			struct sk_buff *skb = tcp_write_queue_head(sk);
-			u64 rto_time_stamp = skb->skb_mstamp +
-					     jiffies_to_usecs(rto);
-			s64 delta_us = rto_time_stamp - tp->tcp_mstamp;
+			s64 delta_us = tcp_rto_delta_us(sk);
 			/* delta_us may not be positive if the socket is locked
 			 * when the retrans timer fires and is rescheduled.
 			 */
-			if (delta_us > 0)
-				rto = usecs_to_jiffies(delta_us);
+			rto = usecs_to_jiffies(max_t(int, delta_us, 1));
 		}
 		inet_csk_reset_xmit_timer(sk, ICSK_TIME_RETRANS, rto,
 					  TCP_RTO_MAX);
 	}
 }
 
+/* Try to schedule a loss probe; if that doesn't work, then schedule an RTO. */
+static void tcp_set_xmit_timer(struct sock *sk)
+{
+	if (!tcp_schedule_loss_probe(sk))
+		tcp_rearm_rto(sk);
+}
+
 /* If we get here, the whole TSO packet has not been acked. */
 static u32 tcp_tso_acked(struct sock *sk, struct sk_buff *skb)
 {
@@ -3180,7 +3184,7 @@ static int tcp_clean_rtx_queue(struct sock *sk, int prior_fackets,
 					ca_rtt_us, sack->rate);
 
 	if (flag & FLAG_ACKED) {
-		tcp_rearm_rto(sk);
+		flag |= FLAG_SET_XMIT_TIMER;  /* set TLP or RTO timer */
 		if (unlikely(icsk->icsk_mtup.probe_size &&
 			     !after(tp->mtu_probe.probe_seq_end, tp->snd_una))) {
 			tcp_mtup_probe_success(sk);
@@ -3208,7 +3212,7 @@ static int tcp_clean_rtx_queue(struct sock *sk, int prior_fackets,
 		 * after when the head was last (re)transmitted. Otherwise the
 		 * timeout may continue to extend in loss recovery.
 		 */
-		tcp_rearm_rto(sk);
+		flag |= FLAG_SET_XMIT_TIMER;  /* set TLP or RTO timer */
 	}
 
 	if (icsk->icsk_ca_ops->pkts_acked) {
@@ -3580,9 +3584,6 @@ static int tcp_ack(struct sock *sk, const struct sk_buff *skb, int flag)
 	if (after(ack, tp->snd_nxt))
 		goto invalid_ack;
 
-	if (icsk->icsk_pending == ICSK_TIME_LOSS_PROBE)
-		tcp_rearm_rto(sk);
-
 	if (after(ack, prior_snd_una)) {
 		flag |= FLAG_SND_UNA_ADVANCED;
 		icsk->icsk_retransmits = 0;
@@ -3647,18 +3648,20 @@ static int tcp_ack(struct sock *sk, const struct sk_buff *skb, int flag)
 	flag |= tcp_clean_rtx_queue(sk, prior_fackets, prior_snd_una, &acked,
 				    &sack_state);
 
+	if (tp->tlp_high_seq)
+		tcp_process_tlp_ack(sk, ack, flag);
+	/* If needed, reset TLP/RTO timer; RACK may later override this. */
+	if (flag & FLAG_SET_XMIT_TIMER)
+		tcp_set_xmit_timer(sk);
+
 	if (tcp_ack_is_dubious(sk, flag)) {
 		is_dupack = !(flag & (FLAG_SND_UNA_ADVANCED | FLAG_NOT_DUP));
 		tcp_fastretrans_alert(sk, acked, is_dupack, &flag, &rexmit);
 	}
-	if (tp->tlp_high_seq)
-		tcp_process_tlp_ack(sk, ack, flag);
 
 	if ((flag & FLAG_FORWARD_PROGRESS) || !(flag & FLAG_NOT_DUP))
 		sk_dst_confirm(sk);
 
-	if (icsk->icsk_pending == ICSK_TIME_RETRANS)
-		tcp_schedule_loss_probe(sk);
 	delivered = tp->delivered - delivered;	/* freshly ACKed or SACKed */
 	lost = tp->lost - lost;			/* freshly marked lost */
 	tcp_rate_gen(sk, delivered, lost, sack_state.rate);
diff --git a/net/ipv4/tcp_ipv4.c b/net/ipv4/tcp_ipv4.c
index a20e7f03d5f7..e9252c7df809 100644
--- a/net/ipv4/tcp_ipv4.c
+++ b/net/ipv4/tcp_ipv4.c
@@ -1722,6 +1722,8 @@ process:
 		 */
 		sock_hold(sk);
 		refcounted = true;
+		if (tcp_filter(sk, skb))
+			goto discard_and_relse;
 		nsk = tcp_check_req(sk, skb, req, false);
 		if (!nsk) {
 			reqsk_put(req);
@@ -1729,8 +1731,6 @@ process:
 		}
 		if (nsk == sk) {
 			reqsk_put(req);
-		} else if (tcp_filter(sk, skb)) {
-			goto discard_and_relse;
 		} else if (tcp_child_process(sk, nsk, skb)) {
 			tcp_v4_send_reset(nsk, skb);
 			goto discard_and_relse;
diff --git a/net/ipv4/tcp_output.c b/net/ipv4/tcp_output.c
index 4e985dea1dd2..b7661a68d498 100644
--- a/net/ipv4/tcp_output.c
+++ b/net/ipv4/tcp_output.c
@@ -2202,9 +2202,10 @@ static bool tcp_small_queue_check(struct sock *sk, const struct sk_buff *skb,
 static void tcp_chrono_set(struct tcp_sock *tp, const enum tcp_chrono new)
 {
 	const u32 now = tcp_jiffies32;
+	enum tcp_chrono old = tp->chrono_type;
 
-	if (tp->chrono_type > TCP_CHRONO_UNSPEC)
-		tp->chrono_stat[tp->chrono_type - 1] += now - tp->chrono_start;
+	if (old > TCP_CHRONO_UNSPEC)
+		tp->chrono_stat[old - 1] += now - tp->chrono_start;
 	tp->chrono_start = now;
 	tp->chrono_type = new;
 }
@@ -2376,24 +2377,15 @@ bool tcp_schedule_loss_probe(struct sock *sk)
 {
 	struct inet_connection_sock *icsk = inet_csk(sk);
 	struct tcp_sock *tp = tcp_sk(sk);
-	u32 timeout, tlp_time_stamp, rto_time_stamp;
 	u32 rtt = usecs_to_jiffies(tp->srtt_us >> 3);
+	u32 timeout, rto_delta_us;
 
-	/* No consecutive loss probes. */
-	if (WARN_ON(icsk->icsk_pending == ICSK_TIME_LOSS_PROBE)) {
-		tcp_rearm_rto(sk);
-		return false;
-	}
 	/* Don't do any loss probe on a Fast Open connection before 3WHS
 	 * finishes.
 	 */
 	if (tp->fastopen_rsk)
 		return false;
 
-	/* TLP is only scheduled when next timer event is RTO. */
-	if (icsk->icsk_pending != ICSK_TIME_RETRANS)
-		return false;
-
 	/* Schedule a loss probe in 2*RTT for SACK capable connections
 	 * in Open state, that are either limited by cwnd or application.
 	 */
@@ -2416,14 +2408,10 @@ bool tcp_schedule_loss_probe(struct sock *sk)
 				(rtt + (rtt >> 1) + TCP_DELACK_MAX));
 	timeout = max_t(u32, timeout, msecs_to_jiffies(10));
 
-	/* If RTO is shorter, just schedule TLP in its place. */
-	tlp_time_stamp = tcp_jiffies32 + timeout;
-	rto_time_stamp = (u32)inet_csk(sk)->icsk_timeout;
-	if ((s32)(tlp_time_stamp - rto_time_stamp) > 0) {
-		s32 delta = rto_time_stamp - tcp_jiffies32;
-		if (delta > 0)
-			timeout = delta;
-	}
+	/* If the RTO formula yields an earlier time, then use that time. */
+	rto_delta_us = tcp_rto_delta_us(sk);  /* How far in future is RTO? */
+	if (rto_delta_us > 0)
+		timeout = min_t(u32, timeout, usecs_to_jiffies(rto_delta_us));
 
 	inet_csk_reset_xmit_timer(sk, ICSK_TIME_LOSS_PROBE, timeout,
 				  TCP_RTO_MAX);
@@ -3448,6 +3436,10 @@ int tcp_connect(struct sock *sk)
 	int err;
 
 	tcp_call_bpf(sk, BPF_SOCK_OPS_TCP_CONNECT_CB);
+
+	if (inet_csk(sk)->icsk_af_ops->rebuild_header(sk))
+		return -EHOSTUNREACH; /* Routing failure or similar. */
+
 	tcp_connect_init(sk);
 
 	if (unlikely(tp->repair)) {
diff --git a/net/ipv4/tcp_timer.c b/net/ipv4/tcp_timer.c
index c0feeeef962a..e906014890b6 100644
--- a/net/ipv4/tcp_timer.c
+++ b/net/ipv4/tcp_timer.c
@@ -652,7 +652,8 @@ static void tcp_keepalive_timer (unsigned long data)
 		goto death;
 	}
 
-	if (!sock_flag(sk, SOCK_KEEPOPEN) || sk->sk_state == TCP_CLOSE)
+	if (!sock_flag(sk, SOCK_KEEPOPEN) ||
+	    ((1 << sk->sk_state) & (TCPF_CLOSE | TCPF_SYN_SENT)))
 		goto out;
 
 	elapsed = keepalive_time_when(tp);
diff --git a/net/ipv4/tcp_ulp.c b/net/ipv4/tcp_ulp.c
index 2417f55374c5..6bb9e14c710a 100644
--- a/net/ipv4/tcp_ulp.c
+++ b/net/ipv4/tcp_ulp.c
@@ -122,14 +122,14 @@ int tcp_set_ulp(struct sock *sk, const char *name)
 
 	ulp_ops = __tcp_ulp_find_autoload(name);
 	if (!ulp_ops)
-		err = -ENOENT;
-	else
-		err = ulp_ops->init(sk);
+		return -ENOENT;
 
-	if (err)
-		goto out;
+	err = ulp_ops->init(sk);
+	if (err) {
+		module_put(ulp_ops->owner);
+		return err;
+	}
 
 	icsk->icsk_ulp_ops = ulp_ops;
- out:
-	return err;
+	return 0;
 }
diff --git a/net/ipv4/udp.c b/net/ipv4/udp.c
index 25294d43e147..cd1d044a7fa5 100644
--- a/net/ipv4/udp.c
+++ b/net/ipv4/udp.c
@@ -802,7 +802,7 @@ static int udp_send_skb(struct sk_buff *skb, struct flowi4 *fl4)
 	if (is_udplite)  				 /*     UDP-Lite      */
 		csum = udplite_csum(skb);
 
-	else if (sk->sk_no_check_tx) {   /* UDP csum disabled */
+	else if (sk->sk_no_check_tx && !skb_is_gso(skb)) {   /* UDP csum off */
 
 		skb->ip_summed = CHECKSUM_NONE;
 		goto send;
@@ -1163,34 +1163,32 @@ out:
 	return ret;
 }
 
-#if BITS_PER_LONG == 64
+#define UDP_SKB_IS_STATELESS 0x80000000
+
 static void udp_set_dev_scratch(struct sk_buff *skb)
 {
-	struct udp_dev_scratch *scratch;
+	struct udp_dev_scratch *scratch = udp_skb_scratch(skb);
 
 	BUILD_BUG_ON(sizeof(struct udp_dev_scratch) > sizeof(long));
-	scratch = (struct udp_dev_scratch *)&skb->dev_scratch;
-	scratch->truesize = skb->truesize;
+	scratch->_tsize_state = skb->truesize;
+#if BITS_PER_LONG == 64
 	scratch->len = skb->len;
 	scratch->csum_unnecessary = !!skb_csum_unnecessary(skb);
 	scratch->is_linear = !skb_is_nonlinear(skb);
+#endif
+	if (likely(!skb->_skb_refdst))
+		scratch->_tsize_state |= UDP_SKB_IS_STATELESS;
 }
 
 static int udp_skb_truesize(struct sk_buff *skb)
 {
-	return ((struct udp_dev_scratch *)&skb->dev_scratch)->truesize;
-}
-#else
-static void udp_set_dev_scratch(struct sk_buff *skb)
-{
-	skb->dev_scratch = skb->truesize;
+	return udp_skb_scratch(skb)->_tsize_state & ~UDP_SKB_IS_STATELESS;
 }
 
-static int udp_skb_truesize(struct sk_buff *skb)
+static bool udp_skb_has_head_state(struct sk_buff *skb)
 {
-	return skb->dev_scratch;
+	return !(udp_skb_scratch(skb)->_tsize_state & UDP_SKB_IS_STATELESS);
 }
-#endif
 
 /* fully reclaim rmem/fwd memory allocated for skb */
 static void udp_rmem_release(struct sock *sk, int size, int partial,
@@ -1388,6 +1386,11 @@ void skb_consume_udp(struct sock *sk, struct sk_buff *skb, int len)
 		unlock_sock_fast(sk, slow);
 	}
 
+	/* In the more common cases we cleared the head states previously,
+	 * see __udp_queue_rcv_skb().
+	 */
+	if (unlikely(udp_skb_has_head_state(skb)))
+		skb_release_head_state(skb);
 	consume_stateless_skb(skb);
 }
 EXPORT_SYMBOL_GPL(skb_consume_udp);
@@ -1571,7 +1574,8 @@ int udp_recvmsg(struct sock *sk, struct msghdr *msg, size_t len, int noblock,
 		return ip_recv_error(sk, msg, len, addr_len);
 
 try_again:
-	peeking = off = sk_peek_offset(sk, flags);
+	peeking = flags & MSG_PEEK;
+	off = sk_peek_offset(sk, flags);
 	skb = __skb_recv_udp(sk, flags, noblock, &peeked, &off, &err);
 	if (!skb)
 		return err;
@@ -1779,8 +1783,12 @@ static int __udp_queue_rcv_skb(struct sock *sk, struct sk_buff *skb)
 		sk_mark_napi_id_once(sk, skb);
 	}
 
-	/* clear all pending head states while they are hot in the cache */
-	skb_release_head_state(skb);
+	/* At recvmsg() time we may access skb->dst or skb->sp depending on
+	 * the IP options and the cmsg flags, elsewhere can we clear all
+	 * pending head states while they are hot in the cache
+	 */
+	if (likely(IPCB(skb)->opt.optlen == 0 && !skb_sec_path(skb)))
+		skb_release_head_state(skb);
 
 	rc = __udp_enqueue_schedule_skb(sk, skb);
 	if (rc < 0) {
@@ -1921,7 +1929,7 @@ drop:
 /* For TCP sockets, sk_rx_dst is protected by socket lock
  * For UDP, we use xchg() to guard against concurrent changes.
  */
-static void udp_sk_rx_dst_set(struct sock *sk, struct dst_entry *dst)
+void udp_sk_rx_dst_set(struct sock *sk, struct dst_entry *dst)
 {
 	struct dst_entry *old;
 
@@ -1930,6 +1938,7 @@ static void udp_sk_rx_dst_set(struct sock *sk, struct dst_entry *dst)
 		dst_release(old);
 	}
 }
+EXPORT_SYMBOL(udp_sk_rx_dst_set);
 
 /*
  *	Multicasts and broadcasts go to each listener.
diff --git a/net/ipv4/udp_offload.c b/net/ipv4/udp_offload.c
index 781250151d40..0932c85b42af 100644
--- a/net/ipv4/udp_offload.c
+++ b/net/ipv4/udp_offload.c
@@ -235,7 +235,7 @@ static struct sk_buff *udp4_ufo_fragment(struct sk_buff *skb,
 	if (uh->check == 0)
 		uh->check = CSUM_MANGLED_0;
 
-	skb->ip_summed = CHECKSUM_NONE;
+	skb->ip_summed = CHECKSUM_UNNECESSARY;
 
 	/* If there is no outer header we can fake a checksum offload
 	 * due to the fact that we have already done the checksum in
diff --git a/net/ipv6/exthdrs.c b/net/ipv6/exthdrs.c
index 4996d734f1d2..3cec529c6113 100644
--- a/net/ipv6/exthdrs.c
+++ b/net/ipv6/exthdrs.c
@@ -756,6 +756,7 @@ static bool ipv6_hop_jumbo(struct sk_buff *skb, int optoff)
 	if (pskb_trim_rcsum(skb, pkt_len + sizeof(struct ipv6hdr)))
 		goto drop;
 
+	IP6CB(skb)->flags |= IP6SKB_JUMBOGRAM;
 	return true;
 
 drop:
diff --git a/net/ipv6/ip6_fib.c b/net/ipv6/ip6_fib.c
index ebb299cf72b7..5cc0ea038198 100644
--- a/net/ipv6/ip6_fib.c
+++ b/net/ipv6/ip6_fib.c
@@ -914,6 +914,8 @@ add:
 		}
 		nsiblings = iter->rt6i_nsiblings;
 		fib6_purge_rt(iter, fn, info->nl_net);
+		if (fn->rr_ptr == iter)
+			fn->rr_ptr = NULL;
 		rt6_release(iter);
 
 		if (nsiblings) {
@@ -926,6 +928,8 @@ add:
 				if (rt6_qualify_for_ecmp(iter)) {
 					*ins = iter->dst.rt6_next;
 					fib6_purge_rt(iter, fn, info->nl_net);
+					if (fn->rr_ptr == iter)
+						fn->rr_ptr = NULL;
 					rt6_release(iter);
 					nsiblings--;
 				} else {
@@ -1014,7 +1018,7 @@ int fib6_add(struct fib6_node *root, struct rt6_info *rt,
 			/* Create subtree root node */
 			sfn = node_alloc();
 			if (!sfn)
-				goto st_failure;
+				goto failure;
 
 			sfn->leaf = info->nl_net->ipv6.ip6_null_entry;
 			atomic_inc(&info->nl_net->ipv6.ip6_null_entry->rt6i_ref);
@@ -1031,12 +1035,12 @@ int fib6_add(struct fib6_node *root, struct rt6_info *rt,
 
 			if (IS_ERR(sn)) {
 				/* If it is failed, discard just allocated
-				   root, and then (in st_failure) stale node
+				   root, and then (in failure) stale node
 				   in main tree.
 				 */
 				node_free(sfn);
 				err = PTR_ERR(sn);
-				goto st_failure;
+				goto failure;
 			}
 
 			/* Now link new subtree to main tree */
@@ -1051,7 +1055,7 @@ int fib6_add(struct fib6_node *root, struct rt6_info *rt,
 
 			if (IS_ERR(sn)) {
 				err = PTR_ERR(sn);
-				goto st_failure;
+				goto failure;
 			}
 		}
 
@@ -1092,18 +1096,17 @@ out:
 			atomic_inc(&pn->leaf->rt6i_ref);
 		}
 #endif
-		/* Always release dst as dst->__refcnt is guaranteed
-		 * to be taken before entering this function
-		 */
-		dst_release_immediate(&rt->dst);
+		goto failure;
 	}
 	return err;
 
-#ifdef CONFIG_IPV6_SUBTREES
-	/* Subtree creation failed, probably main tree node
-	   is orphan. If it is, shoot it.
+failure:
+	/* fn->leaf could be NULL if fn is an intermediate node and we
+	 * failed to add the new route to it in both subtree creation
+	 * failure and fib6_add_rt2node() failure case.
+	 * In both cases, fib6_repair_tree() should be called to fix
+	 * fn->leaf.
 	 */
-st_failure:
 	if (fn && !(fn->fn_flags & (RTN_RTINFO|RTN_ROOT)))
 		fib6_repair_tree(info->nl_net, fn);
 	/* Always release dst as dst->__refcnt is guaranteed
@@ -1111,7 +1114,6 @@ st_failure:
 	 */
 	dst_release_immediate(&rt->dst);
 	return err;
-#endif
 }
 
 /*
diff --git a/net/ipv6/ip6_output.c b/net/ipv6/ip6_output.c
index 1422d6c08377..2dfe50d8d609 100644
--- a/net/ipv6/ip6_output.c
+++ b/net/ipv6/ip6_output.c
@@ -673,8 +673,6 @@ int ip6_fragment(struct net *net, struct sock *sk, struct sk_buff *skb,
 		*prevhdr = NEXTHDR_FRAGMENT;
 		tmp_hdr = kmemdup(skb_network_header(skb), hlen, GFP_ATOMIC);
 		if (!tmp_hdr) {
-			IP6_INC_STATS(net, ip6_dst_idev(skb_dst(skb)),
-				      IPSTATS_MIB_FRAGFAILS);
 			err = -ENOMEM;
 			goto fail;
 		}
@@ -789,8 +787,6 @@ slow_path:
 		frag = alloc_skb(len + hlen + sizeof(struct frag_hdr) +
 				 hroom + troom, GFP_ATOMIC);
 		if (!frag) {
-			IP6_INC_STATS(net, ip6_dst_idev(skb_dst(skb)),
-				      IPSTATS_MIB_FRAGFAILS);
 			err = -ENOMEM;
 			goto fail;
 		}
@@ -1385,11 +1381,12 @@ emsgsize:
 	 */
 
 	cork->length += length;
-	if ((((length + (skb ? skb->len : headersize)) > mtu) ||
-	     (skb && skb_is_gso(skb))) &&
+	if ((skb && skb_is_gso(skb)) ||
+	    (((length + (skb ? skb->len : headersize)) > mtu) &&
+	    (skb_queue_len(queue) <= 1) &&
 	    (sk->sk_protocol == IPPROTO_UDP) &&
 	    (rt->dst.dev->features & NETIF_F_UFO) && !dst_xfrm(&rt->dst) &&
-	    (sk->sk_type == SOCK_DGRAM) && !udp_get_no_check6_tx(sk)) {
+	    (sk->sk_type == SOCK_DGRAM) && !udp_get_no_check6_tx(sk))) {
 		err = ip6_ufo_append_data(sk, queue, getfrag, from, length,
 					  hh_len, fragheaderlen, exthdrlen,
 					  transhdrlen, mtu, flags, fl6);
diff --git a/net/ipv6/output_core.c b/net/ipv6/output_core.c
index e9065b8d3af8..abb2c307fbe8 100644
--- a/net/ipv6/output_core.c
+++ b/net/ipv6/output_core.c
@@ -78,7 +78,7 @@ EXPORT_SYMBOL(ipv6_select_ident);
 
 int ip6_find_1stfragopt(struct sk_buff *skb, u8 **nexthdr)
 {
-	u16 offset = sizeof(struct ipv6hdr);
+	unsigned int offset = sizeof(struct ipv6hdr);
 	unsigned int packet_len = skb_tail_pointer(skb) -
 		skb_network_header(skb);
 	int found_rhdr = 0;
@@ -86,6 +86,7 @@ int ip6_find_1stfragopt(struct sk_buff *skb, u8 **nexthdr)
 
 	while (offset <= packet_len) {
 		struct ipv6_opt_hdr *exthdr;
+		unsigned int len;
 
 		switch (**nexthdr) {
 
@@ -111,7 +112,10 @@ int ip6_find_1stfragopt(struct sk_buff *skb, u8 **nexthdr)
 
 		exthdr = (struct ipv6_opt_hdr *)(skb_network_header(skb) +
 						 offset);
-		offset += ipv6_optlen(exthdr);
+		len = ipv6_optlen(exthdr);
+		if (len + offset >= IPV6_MAXPLEN)
+			return -EINVAL;
+		offset += len;
 		*nexthdr = &exthdr->nexthdr;
 	}
 
diff --git a/net/ipv6/route.c b/net/ipv6/route.c
index 4d30c96a819d..94d6a13d47f0 100644
--- a/net/ipv6/route.c
+++ b/net/ipv6/route.c
@@ -417,14 +417,11 @@ static void ip6_dst_ifdown(struct dst_entry *dst, struct net_device *dev,
 	struct net_device *loopback_dev =
 		dev_net(dev)->loopback_dev;
 
-	if (dev != loopback_dev) {
-		if (idev && idev->dev == dev) {
-			struct inet6_dev *loopback_idev =
-				in6_dev_get(loopback_dev);
-			if (loopback_idev) {
-				rt->rt6i_idev = loopback_idev;
-				in6_dev_put(idev);
-			}
+	if (idev && idev->dev != loopback_dev) {
+		struct inet6_dev *loopback_idev = in6_dev_get(loopback_dev);
+		if (loopback_idev) {
+			rt->rt6i_idev = loopback_idev;
+			in6_dev_put(idev);
 		}
 	}
 }
@@ -2351,6 +2348,7 @@ static void rt6_do_redirect(struct dst_entry *dst, struct sock *sk, struct sk_bu
 	if (on_link)
 		nrt->rt6i_flags &= ~RTF_GATEWAY;
 
+	nrt->rt6i_protocol = RTPROT_REDIRECT;
 	nrt->rt6i_gateway = *(struct in6_addr *)neigh->primary_key;
 
 	if (ip6_ins_rt(nrt))
@@ -2461,6 +2459,7 @@ static struct rt6_info *rt6_add_route_info(struct net *net,
 		.fc_dst_len	= prefixlen,
 		.fc_flags	= RTF_GATEWAY | RTF_ADDRCONF | RTF_ROUTEINFO |
 				  RTF_UP | RTF_PREF(pref),
+		.fc_protocol = RTPROT_RA,
 		.fc_nlinfo.portid = 0,
 		.fc_nlinfo.nlh = NULL,
 		.fc_nlinfo.nl_net = net,
@@ -2513,6 +2512,7 @@ struct rt6_info *rt6_add_dflt_router(const struct in6_addr *gwaddr,
 		.fc_ifindex	= dev->ifindex,
 		.fc_flags	= RTF_GATEWAY | RTF_ADDRCONF | RTF_DEFAULT |
 				  RTF_UP | RTF_EXPIRES | RTF_PREF(pref),
+		.fc_protocol = RTPROT_RA,
 		.fc_nlinfo.portid = 0,
 		.fc_nlinfo.nlh = NULL,
 		.fc_nlinfo.nl_net = dev_net(dev),
@@ -3424,14 +3424,6 @@ static int rt6_fill_node(struct net *net,
 	rtm->rtm_flags = 0;
 	rtm->rtm_scope = RT_SCOPE_UNIVERSE;
 	rtm->rtm_protocol = rt->rt6i_protocol;
-	if (rt->rt6i_flags & RTF_DYNAMIC)
-		rtm->rtm_protocol = RTPROT_REDIRECT;
-	else if (rt->rt6i_flags & RTF_ADDRCONF) {
-		if (rt->rt6i_flags & (RTF_DEFAULT | RTF_ROUTEINFO))
-			rtm->rtm_protocol = RTPROT_RA;
-		else
-			rtm->rtm_protocol = RTPROT_KERNEL;
-	}
 
 	if (rt->rt6i_flags & RTF_CACHE)
 		rtm->rtm_flags |= RTM_F_CLONED;
@@ -3729,10 +3721,10 @@ static int ip6_route_dev_notify(struct notifier_block *this,
 		/* NETDEV_UNREGISTER could be fired for multiple times by
 		 * netdev_wait_allrefs(). Make sure we only call this once.
 		 */
-		in6_dev_put(net->ipv6.ip6_null_entry->rt6i_idev);
+		in6_dev_put_clear(&net->ipv6.ip6_null_entry->rt6i_idev);
 #ifdef CONFIG_IPV6_MULTIPLE_TABLES
-		in6_dev_put(net->ipv6.ip6_prohibit_entry->rt6i_idev);
-		in6_dev_put(net->ipv6.ip6_blk_hole_entry->rt6i_idev);
+		in6_dev_put_clear(&net->ipv6.ip6_prohibit_entry->rt6i_idev);
+		in6_dev_put_clear(&net->ipv6.ip6_blk_hole_entry->rt6i_idev);
 #endif
 	}
 
diff --git a/net/ipv6/syncookies.c b/net/ipv6/syncookies.c
index 7b75b0620730..4e7817abc0b9 100644
--- a/net/ipv6/syncookies.c
+++ b/net/ipv6/syncookies.c
@@ -216,6 +216,7 @@ struct sock *cookie_v6_check(struct sock *sk, struct sk_buff *skb)
 	treq->rcv_isn = ntohl(th->seq) - 1;
 	treq->snt_isn = cookie;
 	treq->ts_off = 0;
+	treq->txhash = net_tx_rndhash();
 
 	/*
 	 * We need to lookup the dst_entry to get the correct window size.
diff --git a/net/ipv6/tcp_ipv6.c b/net/ipv6/tcp_ipv6.c
index 2521690d62d6..206210125fd7 100644
--- a/net/ipv6/tcp_ipv6.c
+++ b/net/ipv6/tcp_ipv6.c
@@ -1456,6 +1456,8 @@ process:
 		}
 		sock_hold(sk);
 		refcounted = true;
+		if (tcp_filter(sk, skb))
+			goto discard_and_relse;
 		nsk = tcp_check_req(sk, skb, req, false);
 		if (!nsk) {
 			reqsk_put(req);
@@ -1464,8 +1466,6 @@ process:
 		if (nsk == sk) {
 			reqsk_put(req);
 			tcp_v6_restore_cb(skb);
-		} else if (tcp_filter(sk, skb)) {
-			goto discard_and_relse;
 		} else if (tcp_child_process(sk, nsk, skb)) {
 			tcp_v6_send_reset(nsk, skb);
 			goto discard_and_relse;
diff --git a/net/ipv6/udp.c b/net/ipv6/udp.c
index 4a3e65626e8b..20039c8501eb 100644
--- a/net/ipv6/udp.c
+++ b/net/ipv6/udp.c
@@ -291,11 +291,7 @@ static struct sock *__udp6_lib_lookup_skb(struct sk_buff *skb,
 					  struct udp_table *udptable)
 {
 	const struct ipv6hdr *iph = ipv6_hdr(skb);
-	struct sock *sk;
 
-	sk = skb_steal_sock(skb);
-	if (unlikely(sk))
-		return sk;
 	return __udp6_lib_lookup(dev_net(skb->dev), &iph->saddr, sport,
 				 &iph->daddr, dport, inet6_iif(skb),
 				 udptable, skb);
@@ -332,6 +328,15 @@ struct sock *udp6_lib_lookup(struct net *net, const struct in6_addr *saddr, __be
 EXPORT_SYMBOL_GPL(udp6_lib_lookup);
 #endif
 
+/* do not use the scratch area len for jumbogram: their length execeeds the
+ * scratch area space; note that the IP6CB flags is still in the first
+ * cacheline, so checking for jumbograms is cheap
+ */
+static int udp6_skb_len(struct sk_buff *skb)
+{
+	return unlikely(inet6_is_jumbogram(skb)) ? skb->len : udp_skb_len(skb);
+}
+
 /*
  *	This should be easy, if there is something there we
  *	return it, otherwise we block.
@@ -357,12 +362,13 @@ int udpv6_recvmsg(struct sock *sk, struct msghdr *msg, size_t len,
 		return ipv6_recv_rxpmtu(sk, msg, len, addr_len);
 
 try_again:
-	peeking = off = sk_peek_offset(sk, flags);
+	peeking = flags & MSG_PEEK;
+	off = sk_peek_offset(sk, flags);
 	skb = __skb_recv_udp(sk, flags, noblock, &peeked, &off, &err);
 	if (!skb)
 		return err;
 
-	ulen = udp_skb_len(skb);
+	ulen = udp6_skb_len(skb);
 	copied = len;
 	if (copied > ulen - off)
 		copied = ulen - off;
@@ -804,6 +810,24 @@ int __udp6_lib_rcv(struct sk_buff *skb, struct udp_table *udptable,
 	if (udp6_csum_init(skb, uh, proto))
 		goto csum_error;
 
+	/* Check if the socket is already available, e.g. due to early demux */
+	sk = skb_steal_sock(skb);
+	if (sk) {
+		struct dst_entry *dst = skb_dst(skb);
+		int ret;
+
+		if (unlikely(sk->sk_rx_dst != dst))
+			udp_sk_rx_dst_set(sk, dst);
+
+		ret = udpv6_queue_rcv_skb(sk, skb);
+		sock_put(sk);
+
+		/* a return value > 0 means to resubmit the input */
+		if (ret > 0)
+			return ret;
+		return 0;
+	}
+
 	/*
 	 *	Multicast receive code
 	 */
@@ -812,11 +836,6 @@ int __udp6_lib_rcv(struct sk_buff *skb, struct udp_table *udptable,
 				saddr, daddr, udptable, proto);
 
 	/* Unicast */
-
-	/*
-	 * check socket cache ... must talk to Alan about his plans
-	 * for sock caches... i'll skip this for now.
-	 */
 	sk = __udp6_lib_lookup_skb(skb, uh->source, uh->dest, udptable);
 	if (sk) {
 		int ret;
diff --git a/net/ipv6/udp_offload.c b/net/ipv6/udp_offload.c
index a2267f80febb..e7d378c032cb 100644
--- a/net/ipv6/udp_offload.c
+++ b/net/ipv6/udp_offload.c
@@ -72,7 +72,7 @@ static struct sk_buff *udp6_ufo_fragment(struct sk_buff *skb,
 		if (uh->check == 0)
 			uh->check = CSUM_MANGLED_0;
 
-		skb->ip_summed = CHECKSUM_NONE;
+		skb->ip_summed = CHECKSUM_UNNECESSARY;
 
 		/* If there is no outer header we can fake a checksum offload
 		 * due to the fact that we have already done the checksum in
diff --git a/net/irda/af_irda.c b/net/irda/af_irda.c
index 2e6990f8b80b..23fa7c8b09a5 100644
--- a/net/irda/af_irda.c
+++ b/net/irda/af_irda.c
@@ -2213,7 +2213,7 @@ static int irda_getsockopt(struct socket *sock, int level, int optname,
 {
 	struct sock *sk = sock->sk;
 	struct irda_sock *self = irda_sk(sk);
-	struct irda_device_list list;
+	struct irda_device_list list = { 0 };
 	struct irda_device_info *discoveries;
 	struct irda_ias_set *	ias_opt;	/* IAS get/query params */
 	struct ias_object *	ias_obj;	/* Object in IAS */
diff --git a/net/key/af_key.c b/net/key/af_key.c
index ca9d3ae665e7..98f4d8211b9a 100644
--- a/net/key/af_key.c
+++ b/net/key/af_key.c
@@ -228,7 +228,7 @@ static int pfkey_broadcast_one(struct sk_buff *skb, struct sk_buff **skb2,
 #define BROADCAST_ONE		1
 #define BROADCAST_REGISTERED	2
 #define BROADCAST_PROMISC_ONLY	4
-static int pfkey_broadcast(struct sk_buff *skb,
+static int pfkey_broadcast(struct sk_buff *skb, gfp_t allocation,
 			   int broadcast_flags, struct sock *one_sk,
 			   struct net *net)
 {
@@ -278,7 +278,7 @@ static int pfkey_broadcast(struct sk_buff *skb,
 	rcu_read_unlock();
 
 	if (one_sk != NULL)
-		err = pfkey_broadcast_one(skb, &skb2, GFP_KERNEL, one_sk);
+		err = pfkey_broadcast_one(skb, &skb2, allocation, one_sk);
 
 	kfree_skb(skb2);
 	kfree_skb(skb);
@@ -311,7 +311,7 @@ static int pfkey_do_dump(struct pfkey_sock *pfk)
 		hdr = (struct sadb_msg *) pfk->dump.skb->data;
 		hdr->sadb_msg_seq = 0;
 		hdr->sadb_msg_errno = rc;
-		pfkey_broadcast(pfk->dump.skb, BROADCAST_ONE,
+		pfkey_broadcast(pfk->dump.skb, GFP_ATOMIC, BROADCAST_ONE,
 				&pfk->sk, sock_net(&pfk->sk));
 		pfk->dump.skb = NULL;
 	}
@@ -355,7 +355,7 @@ static int pfkey_error(const struct sadb_msg *orig, int err, struct sock *sk)
 	hdr->sadb_msg_len = (sizeof(struct sadb_msg) /
 			     sizeof(uint64_t));
 
-	pfkey_broadcast(skb, BROADCAST_ONE, sk, sock_net(sk));
+	pfkey_broadcast(skb, GFP_KERNEL, BROADCAST_ONE, sk, sock_net(sk));
 
 	return 0;
 }
@@ -1389,7 +1389,7 @@ static int pfkey_getspi(struct sock *sk, struct sk_buff *skb, const struct sadb_
 
 	xfrm_state_put(x);
 
-	pfkey_broadcast(resp_skb, BROADCAST_ONE, sk, net);
+	pfkey_broadcast(resp_skb, GFP_KERNEL, BROADCAST_ONE, sk, net);
 
 	return 0;
 }
@@ -1476,7 +1476,7 @@ static int key_notify_sa(struct xfrm_state *x, const struct km_event *c)
 	hdr->sadb_msg_seq = c->seq;
 	hdr->sadb_msg_pid = c->portid;
 
-	pfkey_broadcast(skb, BROADCAST_ALL, NULL, xs_net(x));
+	pfkey_broadcast(skb, GFP_ATOMIC, BROADCAST_ALL, NULL, xs_net(x));
 
 	return 0;
 }
@@ -1589,7 +1589,7 @@ static int pfkey_get(struct sock *sk, struct sk_buff *skb, const struct sadb_msg
 	out_hdr->sadb_msg_reserved = 0;
 	out_hdr->sadb_msg_seq = hdr->sadb_msg_seq;
 	out_hdr->sadb_msg_pid = hdr->sadb_msg_pid;
-	pfkey_broadcast(out_skb, BROADCAST_ONE, sk, sock_net(sk));
+	pfkey_broadcast(out_skb, GFP_ATOMIC, BROADCAST_ONE, sk, sock_net(sk));
 
 	return 0;
 }
@@ -1694,8 +1694,8 @@ static int pfkey_register(struct sock *sk, struct sk_buff *skb, const struct sad
 		return -ENOBUFS;
 	}
 
-	pfkey_broadcast(supp_skb, BROADCAST_REGISTERED, sk, sock_net(sk));
-
+	pfkey_broadcast(supp_skb, GFP_KERNEL, BROADCAST_REGISTERED, sk,
+			sock_net(sk));
 	return 0;
 }
 
@@ -1712,7 +1712,8 @@ static int unicast_flush_resp(struct sock *sk, const struct sadb_msg *ihdr)
 	hdr->sadb_msg_errno = (uint8_t) 0;
 	hdr->sadb_msg_len = (sizeof(struct sadb_msg) / sizeof(uint64_t));
 
-	return pfkey_broadcast(skb, BROADCAST_ONE, sk, sock_net(sk));
+	return pfkey_broadcast(skb, GFP_ATOMIC, BROADCAST_ONE, sk,
+			       sock_net(sk));
 }
 
 static int key_notify_sa_flush(const struct km_event *c)
@@ -1733,7 +1734,7 @@ static int key_notify_sa_flush(const struct km_event *c)
 	hdr->sadb_msg_len = (sizeof(struct sadb_msg) / sizeof(uint64_t));
 	hdr->sadb_msg_reserved = 0;
 
-	pfkey_broadcast(skb, BROADCAST_ALL, NULL, c->net);
+	pfkey_broadcast(skb, GFP_ATOMIC, BROADCAST_ALL, NULL, c->net);
 
 	return 0;
 }
@@ -1790,7 +1791,7 @@ static int dump_sa(struct xfrm_state *x, int count, void *ptr)
 	out_hdr->sadb_msg_pid = pfk->dump.msg_portid;
 
 	if (pfk->dump.skb)
-		pfkey_broadcast(pfk->dump.skb, BROADCAST_ONE,
+		pfkey_broadcast(pfk->dump.skb, GFP_ATOMIC, BROADCAST_ONE,
 				&pfk->sk, sock_net(&pfk->sk));
 	pfk->dump.skb = out_skb;
 
@@ -1878,7 +1879,7 @@ static int pfkey_promisc(struct sock *sk, struct sk_buff *skb, const struct sadb
 		new_hdr->sadb_msg_errno = 0;
 	}
 
-	pfkey_broadcast(skb, BROADCAST_ALL, NULL, sock_net(sk));
+	pfkey_broadcast(skb, GFP_KERNEL, BROADCAST_ALL, NULL, sock_net(sk));
 	return 0;
 }
 
@@ -2206,7 +2207,7 @@ static int key_notify_policy(struct xfrm_policy *xp, int dir, const struct km_ev
 	out_hdr->sadb_msg_errno = 0;
 	out_hdr->sadb_msg_seq = c->seq;
 	out_hdr->sadb_msg_pid = c->portid;
-	pfkey_broadcast(out_skb, BROADCAST_ALL, NULL, xp_net(xp));
+	pfkey_broadcast(out_skb, GFP_ATOMIC, BROADCAST_ALL, NULL, xp_net(xp));
 	return 0;
 
 }
@@ -2426,7 +2427,7 @@ static int key_pol_get_resp(struct sock *sk, struct xfrm_policy *xp, const struc
 	out_hdr->sadb_msg_errno = 0;
 	out_hdr->sadb_msg_seq = hdr->sadb_msg_seq;
 	out_hdr->sadb_msg_pid = hdr->sadb_msg_pid;
-	pfkey_broadcast(out_skb, BROADCAST_ONE, sk, xp_net(xp));
+	pfkey_broadcast(out_skb, GFP_ATOMIC, BROADCAST_ONE, sk, xp_net(xp));
 	err = 0;
 
 out:
@@ -2682,7 +2683,7 @@ static int dump_sp(struct xfrm_policy *xp, int dir, int count, void *ptr)
 	out_hdr->sadb_msg_pid = pfk->dump.msg_portid;
 
 	if (pfk->dump.skb)
-		pfkey_broadcast(pfk->dump.skb, BROADCAST_ONE,
+		pfkey_broadcast(pfk->dump.skb, GFP_ATOMIC, BROADCAST_ONE,
 				&pfk->sk, sock_net(&pfk->sk));
 	pfk->dump.skb = out_skb;
 
@@ -2739,7 +2740,7 @@ static int key_notify_policy_flush(const struct km_event *c)
 	hdr->sadb_msg_satype = SADB_SATYPE_UNSPEC;
 	hdr->sadb_msg_len = (sizeof(struct sadb_msg) / sizeof(uint64_t));
 	hdr->sadb_msg_reserved = 0;
-	pfkey_broadcast(skb_out, BROADCAST_ALL, NULL, c->net);
+	pfkey_broadcast(skb_out, GFP_ATOMIC, BROADCAST_ALL, NULL, c->net);
 	return 0;
 
 }
@@ -2803,7 +2804,7 @@ static int pfkey_process(struct sock *sk, struct sk_buff *skb, const struct sadb
 	void *ext_hdrs[SADB_EXT_MAX];
 	int err;
 
-	pfkey_broadcast(skb_clone(skb, GFP_KERNEL),
+	pfkey_broadcast(skb_clone(skb, GFP_KERNEL), GFP_KERNEL,
 			BROADCAST_PROMISC_ONLY, NULL, sock_net(sk));
 
 	memset(ext_hdrs, 0, sizeof(ext_hdrs));
@@ -3024,7 +3025,8 @@ static int key_notify_sa_expire(struct xfrm_state *x, const struct km_event *c)
 	out_hdr->sadb_msg_seq = 0;
 	out_hdr->sadb_msg_pid = 0;
 
-	pfkey_broadcast(out_skb, BROADCAST_REGISTERED, NULL, xs_net(x));
+	pfkey_broadcast(out_skb, GFP_ATOMIC, BROADCAST_REGISTERED, NULL,
+			xs_net(x));
 	return 0;
 }
 
@@ -3212,7 +3214,8 @@ static int pfkey_send_acquire(struct xfrm_state *x, struct xfrm_tmpl *t, struct
 		       xfrm_ctx->ctx_len);
 	}
 
-	return pfkey_broadcast(skb, BROADCAST_REGISTERED, NULL, xs_net(x));
+	return pfkey_broadcast(skb, GFP_ATOMIC, BROADCAST_REGISTERED, NULL,
+			       xs_net(x));
 }
 
 static struct xfrm_policy *pfkey_compile_policy(struct sock *sk, int opt,
@@ -3408,7 +3411,8 @@ static int pfkey_send_new_mapping(struct xfrm_state *x, xfrm_address_t *ipaddr,
 	n_port->sadb_x_nat_t_port_port = sport;
 	n_port->sadb_x_nat_t_port_reserved = 0;
 
-	return pfkey_broadcast(skb, BROADCAST_REGISTERED, NULL, xs_net(x));
+	return pfkey_broadcast(skb, GFP_ATOMIC, BROADCAST_REGISTERED, NULL,
+			       xs_net(x));
 }
 
 #ifdef CONFIG_NET_KEY_MIGRATE
@@ -3599,7 +3603,7 @@ static int pfkey_send_migrate(const struct xfrm_selector *sel, u8 dir, u8 type,
 	}
 
 	/* broadcast migrate message to sockets */
-	pfkey_broadcast(skb, BROADCAST_ALL, NULL, &init_net);
+	pfkey_broadcast(skb, GFP_ATOMIC, BROADCAST_ALL, NULL, &init_net);
 
 	return 0;
 
diff --git a/net/mac80211/agg-rx.c b/net/mac80211/agg-rx.c
index 8708cbe8af5b..2b36eff5d97e 100644
--- a/net/mac80211/agg-rx.c
+++ b/net/mac80211/agg-rx.c
@@ -7,7 +7,7 @@
  * Copyright 2006-2007	Jiri Benc <jbenc@suse.cz>
  * Copyright 2007, Michael Wu <flamingice@sourmilk.net>
  * Copyright 2007-2010, Intel Corporation
- * Copyright(c) 2015 Intel Deutschland GmbH
+ * Copyright(c) 2015-2017 Intel Deutschland GmbH
  *
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License version 2 as
@@ -466,3 +466,23 @@ void ieee80211_manage_rx_ba_offl(struct ieee80211_vif *vif,
 	rcu_read_unlock();
 }
 EXPORT_SYMBOL(ieee80211_manage_rx_ba_offl);
+
+void ieee80211_rx_ba_timer_expired(struct ieee80211_vif *vif,
+				   const u8 *addr, unsigned int tid)
+{
+	struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif);
+	struct ieee80211_local *local = sdata->local;
+	struct sta_info *sta;
+
+	rcu_read_lock();
+	sta = sta_info_get_bss(sdata, addr);
+	if (!sta)
+		goto unlock;
+
+	set_bit(tid, sta->ampdu_mlme.tid_rx_timer_expired);
+	ieee80211_queue_work(&local->hw, &sta->ampdu_mlme.work);
+
+ unlock:
+	rcu_read_unlock();
+}
+EXPORT_SYMBOL(ieee80211_rx_ba_timer_expired);
diff --git a/net/netfilter/core.c b/net/netfilter/core.c
index 552d606e57ca..974cf2a3795a 100644
--- a/net/netfilter/core.c
+++ b/net/netfilter/core.c
@@ -227,114 +227,6 @@ void nf_unregister_net_hooks(struct net *net, const struct nf_hook_ops *reg,
 }
 EXPORT_SYMBOL(nf_unregister_net_hooks);
 
-static LIST_HEAD(nf_hook_list);
-
-static int _nf_register_hook(struct nf_hook_ops *reg)
-{
-	struct net *net, *last;
-	int ret;
-
-	for_each_net(net) {
-		ret = nf_register_net_hook(net, reg);
-		if (ret && ret != -ENOENT)
-			goto rollback;
-	}
-	list_add_tail(&reg->list, &nf_hook_list);
-
-	return 0;
-rollback:
-	last = net;
-	for_each_net(net) {
-		if (net == last)
-			break;
-		nf_unregister_net_hook(net, reg);
-	}
-	return ret;
-}
-
-int nf_register_hook(struct nf_hook_ops *reg)
-{
-	int ret;
-
-	rtnl_lock();
-	ret = _nf_register_hook(reg);
-	rtnl_unlock();
-
-	return ret;
-}
-EXPORT_SYMBOL(nf_register_hook);
-
-static void _nf_unregister_hook(struct nf_hook_ops *reg)
-{
-	struct net *net;
-
-	list_del(&reg->list);
-	for_each_net(net)
-		nf_unregister_net_hook(net, reg);
-}
-
-void nf_unregister_hook(struct nf_hook_ops *reg)
-{
-	rtnl_lock();
-	_nf_unregister_hook(reg);
-	rtnl_unlock();
-}
-EXPORT_SYMBOL(nf_unregister_hook);
-
-int nf_register_hooks(struct nf_hook_ops *reg, unsigned int n)
-{
-	unsigned int i;
-	int err = 0;
-
-	for (i = 0; i < n; i++) {
-		err = nf_register_hook(&reg[i]);
-		if (err)
-			goto err;
-	}
-	return err;
-
-err:
-	if (i > 0)
-		nf_unregister_hooks(reg, i);
-	return err;
-}
-EXPORT_SYMBOL(nf_register_hooks);
-
-/* Caller MUST take rtnl_lock() */
-int _nf_register_hooks(struct nf_hook_ops *reg, unsigned int n)
-{
-	unsigned int i;
-	int err = 0;
-
-	for (i = 0; i < n; i++) {
-		err = _nf_register_hook(&reg[i]);
-		if (err)
-			goto err;
-	}
-	return err;
-
-err:
-	if (i > 0)
-		_nf_unregister_hooks(reg, i);
-	return err;
-}
-EXPORT_SYMBOL(_nf_register_hooks);
-
-void nf_unregister_hooks(struct nf_hook_ops *reg, unsigned int n)
-{
-	while (n-- > 0)
-		nf_unregister_hook(&reg[n]);
-}
-EXPORT_SYMBOL(nf_unregister_hooks);
-
-/* Caller MUST take rtnl_lock */
-void _nf_unregister_hooks(struct nf_hook_ops *reg, unsigned int n)
-{
-	while (n-- > 0)
-		_nf_unregister_hook(&reg[n]);
-}
-EXPORT_SYMBOL(_nf_unregister_hooks);
-
 /* Returns 1 if okfn() needs to be executed by the caller,
  * -EPERM for NF_DROP, 0 otherwise.  Caller must hold rcu_read_lock. */
 int nf_hook_slow(struct sk_buff *skb, struct nf_hook_state *state,
@@ -450,40 +342,9 @@ void (*nf_nat_decode_session_hook)(struct sk_buff *, struct flowi *);
 EXPORT_SYMBOL(nf_nat_decode_session_hook);
 #endif
 
-static int nf_register_hook_list(struct net *net)
-{
-	struct nf_hook_ops *elem;
-	int ret;
-
-	rtnl_lock();
-	list_for_each_entry(elem, &nf_hook_list, list) {
-		ret = nf_register_net_hook(net, elem);
-		if (ret && ret != -ENOENT)
-			goto out_undo;
-	}
-	rtnl_unlock();
-	return 0;
-
-out_undo:
-	list_for_each_entry_continue_reverse(elem, &nf_hook_list, list)
-		nf_unregister_net_hook(net, elem);
-	rtnl_unlock();
-	return ret;
-}
-
-static void nf_unregister_hook_list(struct net *net)
-{
-	struct nf_hook_ops *elem;
-
-	rtnl_lock();
-	list_for_each_entry(elem, &nf_hook_list, list)
-		nf_unregister_net_hook(net, elem);
-	rtnl_unlock();
-}
-
 static int __net_init netfilter_net_init(struct net *net)
 {
-	int i, h, ret;
+	int i, h;
 
 	for (i = 0; i < ARRAY_SIZE(net->nf.hooks); i++) {
 		for (h = 0; h < NF_MAX_HOOKS; h++)
@@ -500,16 +361,12 @@ static int __net_init netfilter_net_init(struct net *net)
 		return -ENOMEM;
 	}
 #endif
-	ret = nf_register_hook_list(net);
-	if (ret)
-		remove_proc_entry("netfilter", net->proc_net);
 
-	return ret;
+	return 0;
 }
 
 static void __net_exit netfilter_net_exit(struct net *net)
 {
-	nf_unregister_hook_list(net);
 	remove_proc_entry("netfilter", net->proc_net);
 }
 
diff --git a/net/netfilter/nf_conntrack_expect.c b/net/netfilter/nf_conntrack_expect.c
index e03d16ed550d..899c2c36da13 100644
--- a/net/netfilter/nf_conntrack_expect.c
+++ b/net/netfilter/nf_conntrack_expect.c
@@ -422,7 +422,7 @@ static inline int __nf_ct_expect_check(struct nf_conntrack_expect *expect)
 	h = nf_ct_expect_dst_hash(net, &expect->tuple);
 	hlist_for_each_entry_safe(i, next, &nf_ct_expect_hash[h], hnode) {
 		if (expect_matches(i, expect)) {
-			if (nf_ct_remove_expect(expect))
+			if (nf_ct_remove_expect(i))
 				break;
 		} else if (expect_clash(i, expect)) {
 			ret = -EBUSY;
diff --git a/net/netfilter/nf_nat_core.c b/net/netfilter/nf_nat_core.c
index 832c5a08d9a5..eb541786ccb7 100644
--- a/net/netfilter/nf_nat_core.c
+++ b/net/netfilter/nf_nat_core.c
@@ -222,20 +222,21 @@ find_appropriate_src(struct net *net,
 		.tuple = tuple,
 		.zone = zone
 	};
-	struct rhlist_head *hl;
+	struct rhlist_head *hl, *h;
 
 	hl = rhltable_lookup(&nf_nat_bysource_table, &key,
 			     nf_nat_bysource_params);
-	if (!hl)
-		return 0;
 
-	ct = container_of(hl, typeof(*ct), nat_bysource);
+	rhl_for_each_entry_rcu(ct, h, hl, nat_bysource) {
+		nf_ct_invert_tuplepr(result,
+				     &ct->tuplehash[IP_CT_DIR_REPLY].tuple);
+		result->dst = tuple->dst;
 
-	nf_ct_invert_tuplepr(result,
-			     &ct->tuplehash[IP_CT_DIR_REPLY].tuple);
-	result->dst = tuple->dst;
+		if (in_range(l3proto, l4proto, result, range))
+			return 1;
+	}
 
-	return in_range(l3proto, l4proto, result, range);
+	return 0;
 }
 
 /* For [FUTURE] fragmentation handling, we want the least-used
diff --git a/net/netfilter/nfnetlink.c b/net/netfilter/nfnetlink.c
index 92b05e188fd1..733d3e4a30d8 100644
--- a/net/netfilter/nfnetlink.c
+++ b/net/netfilter/nfnetlink.c
@@ -472,8 +472,7 @@ static void nfnetlink_rcv_skb_batch(struct sk_buff *skb, struct nlmsghdr *nlh)
 	if (msglen > skb->len)
 		msglen = skb->len;
 
-	if (nlh->nlmsg_len < NLMSG_HDRLEN ||
-	    skb->len < NLMSG_HDRLEN + sizeof(struct nfgenmsg))
+	if (skb->len < NLMSG_HDRLEN + sizeof(struct nfgenmsg))
 		return;
 
 	err = nla_parse(cda, NFNL_BATCH_MAX, attr, attrlen, nfnl_batch_policy,
@@ -500,7 +499,8 @@ static void nfnetlink_rcv(struct sk_buff *skb)
 {
 	struct nlmsghdr *nlh = nlmsg_hdr(skb);
 
-	if (nlh->nlmsg_len < NLMSG_HDRLEN ||
+	if (skb->len < NLMSG_HDRLEN ||
+	    nlh->nlmsg_len < NLMSG_HDRLEN ||
 	    skb->len < nlh->nlmsg_len)
 		return;
 
diff --git a/net/netfilter/x_tables.c b/net/netfilter/x_tables.c
index 1770c1d9b37f..e1648238a9c9 100644
--- a/net/netfilter/x_tables.c
+++ b/net/netfilter/x_tables.c
@@ -1003,14 +1003,10 @@ struct xt_table_info *xt_alloc_table_info(unsigned int size)
 	if ((SMP_ALIGN(size) >> PAGE_SHIFT) + 2 > totalram_pages)
 		return NULL;
 
-	if (sz <= (PAGE_SIZE << PAGE_ALLOC_COSTLY_ORDER))
-		info = kmalloc(sz, GFP_KERNEL | __GFP_NOWARN | __GFP_NORETRY);
-	if (!info) {
-		info = __vmalloc(sz, GFP_KERNEL | __GFP_NOWARN | __GFP_NORETRY,
-				 PAGE_KERNEL);
-		if (!info)
-			return NULL;
-	}
+	info = kvmalloc(sz, GFP_KERNEL);
+	if (!info)
+		return NULL;
+
 	memset(info, 0, sizeof(*info));
 	info->size = size;
 	return info;
diff --git a/net/openvswitch/actions.c b/net/openvswitch/actions.c
index e4610676299b..a54a556fcdb5 100644
--- a/net/openvswitch/actions.c
+++ b/net/openvswitch/actions.c
@@ -1337,6 +1337,7 @@ int ovs_execute_actions(struct datapath *dp, struct sk_buff *skb,
 		goto out;
 	}
 
+	OVS_CB(skb)->acts_origlen = acts->orig_len;
 	err = do_execute_actions(dp, skb, key,
 				 acts->actions, acts->actions_len);
 
diff --git a/net/openvswitch/conntrack.c b/net/openvswitch/conntrack.c
index 08679ebb3068..03859e386b47 100644
--- a/net/openvswitch/conntrack.c
+++ b/net/openvswitch/conntrack.c
@@ -629,6 +629,34 @@ ovs_ct_find_existing(struct net *net, const struct nf_conntrack_zone *zone,
 	return ct;
 }
 
+static
+struct nf_conn *ovs_ct_executed(struct net *net,
+				const struct sw_flow_key *key,
+				const struct ovs_conntrack_info *info,
+				struct sk_buff *skb,
+				bool *ct_executed)
+{
+	struct nf_conn *ct = NULL;
+
+	/* If no ct, check if we have evidence that an existing conntrack entry
+	 * might be found for this skb.  This happens when we lose a skb->_nfct
+	 * due to an upcall, or if the direction is being forced.  If the
+	 * connection was not confirmed, it is not cached and needs to be run
+	 * through conntrack again.
+	 */
+	*ct_executed = (key->ct_state & OVS_CS_F_TRACKED) &&
+		       !(key->ct_state & OVS_CS_F_INVALID) &&
+		       (key->ct_zone == info->zone.id);
+
+	if (*ct_executed || (!key->ct_state && info->force)) {
+		ct = ovs_ct_find_existing(net, &info->zone, info->family, skb,
+					  !!(key->ct_state &
+					  OVS_CS_F_NAT_MASK));
+	}
+
+	return ct;
+}
+
 /* Determine whether skb->_nfct is equal to the result of conntrack lookup. */
 static bool skb_nfct_cached(struct net *net,
 			    const struct sw_flow_key *key,
@@ -637,24 +665,17 @@ static bool skb_nfct_cached(struct net *net,
 {
 	enum ip_conntrack_info ctinfo;
 	struct nf_conn *ct;
+	bool ct_executed = true;
 
 	ct = nf_ct_get(skb, &ctinfo);
-	/* If no ct, check if we have evidence that an existing conntrack entry
-	 * might be found for this skb.  This happens when we lose a skb->_nfct
-	 * due to an upcall.  If the connection was not confirmed, it is not
-	 * cached and needs to be run through conntrack again.
-	 */
-	if (!ct && key->ct_state & OVS_CS_F_TRACKED &&
-	    !(key->ct_state & OVS_CS_F_INVALID) &&
-	    key->ct_zone == info->zone.id) {
-		ct = ovs_ct_find_existing(net, &info->zone, info->family, skb,
-					  !!(key->ct_state
-					     & OVS_CS_F_NAT_MASK));
-		if (ct)
-			nf_ct_get(skb, &ctinfo);
-	}
 	if (!ct)
+		ct = ovs_ct_executed(net, key, info, skb, &ct_executed);
+
+	if (ct)
+		nf_ct_get(skb, &ctinfo);
+	else
 		return false;
+
 	if (!net_eq(net, read_pnet(&ct->ct_net)))
 		return false;
 	if (!nf_ct_zone_equal_any(info->ct, nf_ct_zone(ct)))
@@ -679,7 +700,7 @@ static bool skb_nfct_cached(struct net *net,
 		return false;
 	}
 
-	return true;
+	return ct_executed;
 }
 
 #ifdef CONFIG_NF_NAT_NEEDED
@@ -1289,8 +1310,8 @@ static int parse_ct(const struct nlattr *attr, struct ovs_conntrack_info *info,
 
 	nla_for_each_nested(a, attr, rem) {
 		int type = nla_type(a);
-		int maxlen = ovs_ct_attr_lens[type].maxlen;
-		int minlen = ovs_ct_attr_lens[type].minlen;
+		int maxlen;
+		int minlen;
 
 		if (type > OVS_CT_ATTR_MAX) {
 			OVS_NLERR(log,
@@ -1298,6 +1319,9 @@ static int parse_ct(const struct nlattr *attr, struct ovs_conntrack_info *info,
 				  type, OVS_CT_ATTR_MAX);
 			return -EINVAL;
 		}
+
+		maxlen = ovs_ct_attr_lens[type].maxlen;
+		minlen = ovs_ct_attr_lens[type].minlen;
 		if (nla_len(a) < minlen || nla_len(a) > maxlen) {
 			OVS_NLERR(log,
 				  "Conntrack attr type has unexpected length (type=%d, length=%d, expected=%d)",
diff --git a/net/openvswitch/datapath.c b/net/openvswitch/datapath.c
index 45fe8c8a884d..6b44fe405282 100644
--- a/net/openvswitch/datapath.c
+++ b/net/openvswitch/datapath.c
@@ -381,7 +381,7 @@ static int queue_gso_packets(struct datapath *dp, struct sk_buff *skb,
 }
 
 static size_t upcall_msg_size(const struct dp_upcall_info *upcall_info,
-			      unsigned int hdrlen)
+			      unsigned int hdrlen, int actions_attrlen)
 {
 	size_t size = NLMSG_ALIGN(sizeof(struct ovs_header))
 		+ nla_total_size(hdrlen) /* OVS_PACKET_ATTR_PACKET */
@@ -398,7 +398,7 @@ static size_t upcall_msg_size(const struct dp_upcall_info *upcall_info,
 
 	/* OVS_PACKET_ATTR_ACTIONS */
 	if (upcall_info->actions_len)
-		size += nla_total_size(upcall_info->actions_len);
+		size += nla_total_size(actions_attrlen);
 
 	/* OVS_PACKET_ATTR_MRU */
 	if (upcall_info->mru)
@@ -465,7 +465,8 @@ static int queue_userspace_packet(struct datapath *dp, struct sk_buff *skb,
 	else
 		hlen = skb->len;
 
-	len = upcall_msg_size(upcall_info, hlen - cutlen);
+	len = upcall_msg_size(upcall_info, hlen - cutlen,
+			      OVS_CB(skb)->acts_origlen);
 	user_skb = genlmsg_new(len, GFP_ATOMIC);
 	if (!user_skb) {
 		err = -ENOMEM;
diff --git a/net/openvswitch/datapath.h b/net/openvswitch/datapath.h
index 5d8dcd88815f..480600649d0b 100644
--- a/net/openvswitch/datapath.h
+++ b/net/openvswitch/datapath.h
@@ -99,11 +99,13 @@ struct datapath {
  * when a packet is received by OVS.
  * @mru: The maximum received fragement size; 0 if the packet is not
  * fragmented.
+ * @acts_origlen: The netlink size of the flow actions applied to this skb.
  * @cutlen: The number of bytes from the packet end to be removed.
  */
 struct ovs_skb_cb {
 	struct vport		*input_vport;
 	u16			mru;
+	u16			acts_origlen;
 	u32			cutlen;
 };
 #define OVS_CB(skb) ((struct ovs_skb_cb *)(skb)->cb)
diff --git a/net/packet/af_packet.c b/net/packet/af_packet.c
index e3beb28203eb..008a45ca3112 100644
--- a/net/packet/af_packet.c
+++ b/net/packet/af_packet.c
@@ -214,6 +214,7 @@ static void prb_clear_rxhash(struct tpacket_kbdq_core *,
 static void prb_fill_vlan_info(struct tpacket_kbdq_core *,
 		struct tpacket3_hdr *);
 static void packet_flush_mclist(struct sock *sk);
+static void packet_pick_tx_queue(struct net_device *dev, struct sk_buff *skb);
 
 struct packet_skb_cb {
 	union {
@@ -260,6 +261,7 @@ static int packet_direct_xmit(struct sk_buff *skb)
 	if (skb != orig_skb)
 		goto drop;
 
+	packet_pick_tx_queue(dev, skb);
 	txq = skb_get_tx_queue(dev, skb);
 
 	local_bh_disable();
@@ -2747,8 +2749,6 @@ tpacket_error:
 			goto tpacket_error;
 		}
 
-		packet_pick_tx_queue(dev, skb);
-
 		skb->destructor = tpacket_destruct_skb;
 		__packet_set_status(po, ph, TP_STATUS_SENDING);
 		packet_inc_pending(&po->tx_ring);
@@ -2931,8 +2931,6 @@ static int packet_snd(struct socket *sock, struct msghdr *msg, size_t len)
 	skb->priority = sk->sk_priority;
 	skb->mark = sockc.mark;
 
-	packet_pick_tx_queue(dev, skb);
-
 	if (po->has_vnet_hdr) {
 		err = virtio_net_hdr_to_skb(skb, &vnet_hdr, vio_le());
 		if (err)
@@ -3702,14 +3700,19 @@ packet_setsockopt(struct socket *sock, int level, int optname, char __user *optv
 
 		if (optlen != sizeof(val))
 			return -EINVAL;
-		if (po->rx_ring.pg_vec || po->tx_ring.pg_vec)
-			return -EBUSY;
 		if (copy_from_user(&val, optval, sizeof(val)))
 			return -EFAULT;
 		if (val > INT_MAX)
 			return -EINVAL;
-		po->tp_reserve = val;
-		return 0;
+		lock_sock(sk);
+		if (po->rx_ring.pg_vec || po->tx_ring.pg_vec) {
+			ret = -EBUSY;
+		} else {
+			po->tp_reserve = val;
+			ret = 0;
+		}
+		release_sock(sk);
+		return ret;
 	}
 	case PACKET_LOSS:
 	{
@@ -4331,7 +4334,7 @@ static int packet_set_ring(struct sock *sk, union tpacket_req_u *req_u,
 		register_prot_hook(sk);
 	}
 	spin_unlock(&po->bind_lock);
-	if (closing && (po->tp_version > TPACKET_V2)) {
+	if (pg_vec && (po->tp_version > TPACKET_V2)) {
 		/* Because we don't support block-based V3 on tx-ring */
 		if (!tx_ring)
 			prb_shutdown_retire_blk_timer(po, rb_queue);
diff --git a/net/rds/ib_recv.c b/net/rds/ib_recv.c
index e10624aa6959..9722bf839d9d 100644
--- a/net/rds/ib_recv.c
+++ b/net/rds/ib_recv.c
@@ -1015,8 +1015,10 @@ void rds_ib_recv_cqe_handler(struct rds_ib_connection *ic,
 	if (rds_ib_ring_empty(&ic->i_recv_ring))
 		rds_ib_stats_inc(s_ib_rx_ring_empty);
 
-	if (rds_ib_ring_low(&ic->i_recv_ring))
+	if (rds_ib_ring_low(&ic->i_recv_ring)) {
 		rds_ib_recv_refill(conn, 0, GFP_NOWAIT);
+		rds_ib_stats_inc(s_ib_rx_refill_from_cq);
+	}
 }
 
 int rds_ib_recv_path(struct rds_conn_path *cp)
@@ -1029,6 +1031,7 @@ int rds_ib_recv_path(struct rds_conn_path *cp)
 	if (rds_conn_up(conn)) {
 		rds_ib_attempt_ack(ic);
 		rds_ib_recv_refill(conn, 0, GFP_KERNEL);
+		rds_ib_stats_inc(s_ib_rx_refill_from_thread);
 	}
 
 	return ret;
diff --git a/net/rds/send.c b/net/rds/send.c
index e81aa176f4e2..41b9f0f5bb9c 100644
--- a/net/rds/send.c
+++ b/net/rds/send.c
@@ -170,8 +170,8 @@ restart:
 	 * The acquire_in_xmit() check above ensures that only one
 	 * caller can increment c_send_gen at any time.
 	 */
-	cp->cp_send_gen++;
-	send_gen = cp->cp_send_gen;
+	send_gen = READ_ONCE(cp->cp_send_gen) + 1;
+	WRITE_ONCE(cp->cp_send_gen, send_gen);
 
 	/*
 	 * rds_conn_shutdown() sets the conn state and then tests RDS_IN_XMIT,
@@ -431,7 +431,7 @@ over_batch:
 		smp_mb();
 		if ((test_bit(0, &conn->c_map_queued) ||
 		     !list_empty(&cp->cp_send_queue)) &&
-		    send_gen == cp->cp_send_gen) {
+			send_gen == READ_ONCE(cp->cp_send_gen)) {
 			rds_stats_inc(s_send_lock_queue_raced);
 			if (batch_count < send_batch_count)
 				goto restart;
diff --git a/net/rxrpc/call_accept.c b/net/rxrpc/call_accept.c
index dd30d74824b0..ec3383f97d4c 100644
--- a/net/rxrpc/call_accept.c
+++ b/net/rxrpc/call_accept.c
@@ -223,6 +223,7 @@ void rxrpc_discard_prealloc(struct rxrpc_sock *rx)
 	tail = b->call_backlog_tail;
 	while (CIRC_CNT(head, tail, size) > 0) {
 		struct rxrpc_call *call = b->call_backlog[tail];
+		call->socket = rx;
 		if (rx->discard_new_call) {
 			_debug("discard %lx", call->user_call_ID);
 			rx->discard_new_call(call, call->user_call_ID);
diff --git a/net/sched/act_api.c b/net/sched/act_api.c
index aed6cf2e9fd8..f2e9ed34a963 100644
--- a/net/sched/act_api.c
+++ b/net/sched/act_api.c
@@ -835,7 +835,7 @@ out_nlmsg_trim:
 }
 
 static int
-act_get_notify(struct net *net, u32 portid, struct nlmsghdr *n,
+tcf_get_notify(struct net *net, u32 portid, struct nlmsghdr *n,
 	       struct list_head *actions, int event)
 {
 	struct sk_buff *skb;
@@ -1018,7 +1018,7 @@ tca_action_gd(struct net *net, struct nlattr *nla, struct nlmsghdr *n,
 	}
 
 	if (event == RTM_GETACTION)
-		ret = act_get_notify(net, portid, n, &actions, event);
+		ret = tcf_get_notify(net, portid, n, &actions, event);
 	else { /* delete */
 		ret = tcf_del_notify(net, n, &actions, portid);
 		if (ret)
diff --git a/net/sched/act_ipt.c b/net/sched/act_ipt.c
index 36f0ced9e60c..541707802a23 100644
--- a/net/sched/act_ipt.c
+++ b/net/sched/act_ipt.c
@@ -36,11 +36,12 @@ static struct tc_action_ops act_ipt_ops;
 static unsigned int xt_net_id;
 static struct tc_action_ops act_xt_ops;
 
-static int ipt_init_target(struct xt_entry_target *t, char *table,
-			   unsigned int hook)
+static int ipt_init_target(struct net *net, struct xt_entry_target *t,
+			   char *table, unsigned int hook)
 {
 	struct xt_tgchk_param par;
 	struct xt_target *target;
+	struct ipt_entry e = {};
 	int ret = 0;
 
 	target = xt_request_find_target(AF_INET, t->u.user.name,
@@ -49,8 +50,10 @@ static int ipt_init_target(struct xt_entry_target *t, char *table,
 		return PTR_ERR(target);
 
 	t->u.kernel.target = target;
+	memset(&par, 0, sizeof(par));
+	par.net       = net;
 	par.table     = table;
-	par.entryinfo = NULL;
+	par.entryinfo = &e;
 	par.target    = target;
 	par.targinfo  = t->data;
 	par.hook_mask = hook;
@@ -91,10 +94,11 @@ static const struct nla_policy ipt_policy[TCA_IPT_MAX + 1] = {
 	[TCA_IPT_TARG]	= { .len = sizeof(struct xt_entry_target) },
 };
 
-static int __tcf_ipt_init(struct tc_action_net *tn, struct nlattr *nla,
+static int __tcf_ipt_init(struct net *net, unsigned int id, struct nlattr *nla,
 			  struct nlattr *est, struct tc_action **a,
 			  const struct tc_action_ops *ops, int ovr, int bind)
 {
+	struct tc_action_net *tn = net_generic(net, id);
 	struct nlattr *tb[TCA_IPT_MAX + 1];
 	struct tcf_ipt *ipt;
 	struct xt_entry_target *td, *t;
@@ -159,7 +163,7 @@ static int __tcf_ipt_init(struct tc_action_net *tn, struct nlattr *nla,
 	if (unlikely(!t))
 		goto err2;
 
-	err = ipt_init_target(t, tname, hook);
+	err = ipt_init_target(net, t, tname, hook);
 	if (err < 0)
 		goto err3;
 
@@ -193,18 +197,16 @@ static int tcf_ipt_init(struct net *net, struct nlattr *nla,
 			struct nlattr *est, struct tc_action **a, int ovr,
 			int bind)
 {
-	struct tc_action_net *tn = net_generic(net, ipt_net_id);
-
-	return __tcf_ipt_init(tn, nla, est, a, &act_ipt_ops, ovr, bind);
+	return __tcf_ipt_init(net, ipt_net_id, nla, est, a, &act_ipt_ops, ovr,
+			      bind);
 }
 
 static int tcf_xt_init(struct net *net, struct nlattr *nla,
 		       struct nlattr *est, struct tc_action **a, int ovr,
 		       int bind)
 {
-	struct tc_action_net *tn = net_generic(net, xt_net_id);
-
-	return __tcf_ipt_init(tn, nla, est, a, &act_xt_ops, ovr, bind);
+	return __tcf_ipt_init(net, xt_net_id, nla, est, a, &act_xt_ops, ovr,
+			      bind);
 }
 
 static int tcf_ipt(struct sk_buff *skb, const struct tc_action *a,
diff --git a/net/sched/cls_api.c b/net/sched/cls_api.c
index 39da0c5801c9..9fd44c221347 100644
--- a/net/sched/cls_api.c
+++ b/net/sched/cls_api.c
@@ -205,7 +205,7 @@ static void tcf_chain_flush(struct tcf_chain *chain)
 {
 	struct tcf_proto *tp;
 
-	if (*chain->p_filter_chain)
+	if (chain->p_filter_chain)
 		RCU_INIT_POINTER(*chain->p_filter_chain, NULL);
 	while ((tp = rtnl_dereference(chain->filter_chain)) != NULL) {
 		RCU_INIT_POINTER(chain->filter_chain, tp->next);
diff --git a/net/sched/sch_api.c b/net/sched/sch_api.c
index bd24a550e0f9..a3fa144b8648 100644
--- a/net/sched/sch_api.c
+++ b/net/sched/sch_api.c
@@ -286,9 +286,6 @@ static struct Qdisc *qdisc_match_from_root(struct Qdisc *root, u32 handle)
 void qdisc_hash_add(struct Qdisc *q, bool invisible)
 {
 	if ((q->parent != TC_H_ROOT) && !(q->flags & TCQ_F_INGRESS)) {
-		struct Qdisc *root = qdisc_dev(q)->qdisc;
-
-		WARN_ON_ONCE(root == &noop_qdisc);
 		ASSERT_RTNL();
 		hash_add_rcu(qdisc_dev(q)->qdisc_hash, &q->hash, q->handle);
 		if (invisible)
diff --git a/net/sched/sch_atm.c b/net/sched/sch_atm.c
index 572fe2584e48..c403c87aff7a 100644
--- a/net/sched/sch_atm.c
+++ b/net/sched/sch_atm.c
@@ -572,8 +572,10 @@ static void atm_tc_destroy(struct Qdisc *sch)
 	struct atm_flow_data *flow, *tmp;
 
 	pr_debug("atm_tc_destroy(sch %p,[qdisc %p])\n", sch, p);
-	list_for_each_entry(flow, &p->flows, list)
+	list_for_each_entry(flow, &p->flows, list) {
 		tcf_block_put(flow->block);
+		flow->block = NULL;
+	}
 
 	list_for_each_entry_safe(flow, tmp, &p->flows, list) {
 		if (flow->ref > 1)
diff --git a/net/sched/sch_cbq.c b/net/sched/sch_cbq.c
index 481036f6b54e..780db43300b1 100644
--- a/net/sched/sch_cbq.c
+++ b/net/sched/sch_cbq.c
@@ -1431,8 +1431,10 @@ static void cbq_destroy(struct Qdisc *sch)
 	 * be bound to classes which have been destroyed already. --TGR '04
 	 */
 	for (h = 0; h < q->clhash.hashsize; h++) {
-		hlist_for_each_entry(cl, &q->clhash.hash[h], common.hnode)
+		hlist_for_each_entry(cl, &q->clhash.hash[h], common.hnode) {
 			tcf_block_put(cl->block);
+			cl->block = NULL;
+		}
 	}
 	for (h = 0; h < q->clhash.hashsize; h++) {
 		hlist_for_each_entry_safe(cl, next, &q->clhash.hash[h],
diff --git a/net/sched/sch_fq.c b/net/sched/sch_fq.c
index 147fde73a0f5..263d16e3219e 100644
--- a/net/sched/sch_fq.c
+++ b/net/sched/sch_fq.c
@@ -648,7 +648,7 @@ static int fq_resize(struct Qdisc *sch, u32 log)
 		return 0;
 
 	/* If XPS was setup, we can allocate memory on right NUMA node */
-	array = kvmalloc_node(sizeof(struct rb_root) << log, GFP_KERNEL | __GFP_REPEAT,
+	array = kvmalloc_node(sizeof(struct rb_root) << log, GFP_KERNEL | __GFP_RETRY_MAYFAIL,
 			      netdev_queue_numa_node_read(sch->dev_queue));
 	if (!array)
 		return -ENOMEM;
diff --git a/net/sched/sch_hfsc.c b/net/sched/sch_hfsc.c
index b52f74610dc7..fd15200f8627 100644
--- a/net/sched/sch_hfsc.c
+++ b/net/sched/sch_hfsc.c
@@ -1428,6 +1428,10 @@ hfsc_init_qdisc(struct Qdisc *sch, struct nlattr *opt)
 		return err;
 	q->eligible = RB_ROOT;
 
+	err = tcf_block_get(&q->root.block, &q->root.filter_list);
+	if (err)
+		goto err_tcf;
+
 	q->root.cl_common.classid = sch->handle;
 	q->root.refcnt  = 1;
 	q->root.sched   = q;
@@ -1447,6 +1451,10 @@ hfsc_init_qdisc(struct Qdisc *sch, struct nlattr *opt)
 	qdisc_watchdog_init(&q->watchdog, sch);
 
 	return 0;
+
+err_tcf:
+	qdisc_class_hash_destroy(&q->clhash);
+	return err;
 }
 
 static int
@@ -1522,8 +1530,10 @@ hfsc_destroy_qdisc(struct Qdisc *sch)
 	unsigned int i;
 
 	for (i = 0; i < q->clhash.hashsize; i++) {
-		hlist_for_each_entry(cl, &q->clhash.hash[i], cl_common.hnode)
+		hlist_for_each_entry(cl, &q->clhash.hash[i], cl_common.hnode) {
 			tcf_block_put(cl->block);
+			cl->block = NULL;
+		}
 	}
 	for (i = 0; i < q->clhash.hashsize; i++) {
 		hlist_for_each_entry_safe(cl, next, &q->clhash.hash[i],
diff --git a/net/sched/sch_htb.c b/net/sched/sch_htb.c
index 203286ab4427..5d65ec5207e9 100644
--- a/net/sched/sch_htb.c
+++ b/net/sched/sch_htb.c
@@ -1258,8 +1258,10 @@ static void htb_destroy(struct Qdisc *sch)
 	tcf_block_put(q->block);
 
 	for (i = 0; i < q->clhash.hashsize; i++) {
-		hlist_for_each_entry(cl, &q->clhash.hash[i], common.hnode)
+		hlist_for_each_entry(cl, &q->clhash.hash[i], common.hnode) {
 			tcf_block_put(cl->block);
+			cl->block = NULL;
+		}
 	}
 	for (i = 0; i < q->clhash.hashsize; i++) {
 		hlist_for_each_entry_safe(cl, next, &q->clhash.hash[i],
diff --git a/net/sched/sch_sfq.c b/net/sched/sch_sfq.c
index f80ea2cc5f1f..82469ef9655e 100644
--- a/net/sched/sch_sfq.c
+++ b/net/sched/sch_sfq.c
@@ -437,6 +437,7 @@ congestion_drop:
 		qdisc_drop(head, sch, to_free);
 
 		slot_queue_add(slot, skb);
+		qdisc_tree_reduce_backlog(sch, 0, delta);
 		return NET_XMIT_CN;
 	}
 
@@ -468,8 +469,10 @@ enqueue:
 	/* Return Congestion Notification only if we dropped a packet
 	 * from this flow.
 	 */
-	if (qlen != slot->qlen)
+	if (qlen != slot->qlen) {
+		qdisc_tree_reduce_backlog(sch, 0, dropped - qdisc_pkt_len(skb));
 		return NET_XMIT_CN;
+	}
 
 	/* As we dropped a packet, better let upper stack know this */
 	qdisc_tree_reduce_backlog(sch, 1, dropped);
diff --git a/net/sctp/ipv6.c b/net/sctp/ipv6.c
index 2a186b201ad2..a4b6ffb61495 100644
--- a/net/sctp/ipv6.c
+++ b/net/sctp/ipv6.c
@@ -512,7 +512,9 @@ static void sctp_v6_to_addr(union sctp_addr *addr, struct in6_addr *saddr,
 {
 	addr->sa.sa_family = AF_INET6;
 	addr->v6.sin6_port = port;
+	addr->v6.sin6_flowinfo = 0;
 	addr->v6.sin6_addr = *saddr;
+	addr->v6.sin6_scope_id = 0;
 }
 
 /* Compare addresses exactly.
diff --git a/net/sctp/sm_make_chunk.c b/net/sctp/sm_make_chunk.c
index 4e16b02ed832..6110447fe51d 100644
--- a/net/sctp/sm_make_chunk.c
+++ b/net/sctp/sm_make_chunk.c
@@ -228,7 +228,7 @@ struct sctp_chunk *sctp_make_init(const struct sctp_association *asoc,
 	sctp_adaptation_ind_param_t aiparam;
 	sctp_supported_ext_param_t ext_param;
 	int num_ext = 0;
-	__u8 extensions[3];
+	__u8 extensions[4];
 	struct sctp_paramhdr *auth_chunks = NULL,
 			*auth_hmacs = NULL;
 
@@ -396,7 +396,7 @@ struct sctp_chunk *sctp_make_init_ack(const struct sctp_association *asoc,
 	sctp_adaptation_ind_param_t aiparam;
 	sctp_supported_ext_param_t ext_param;
 	int num_ext = 0;
-	__u8 extensions[3];
+	__u8 extensions[4];
 	struct sctp_paramhdr *auth_chunks = NULL,
 			*auth_hmacs = NULL,
 			*auth_random = NULL;
diff --git a/net/socket.c b/net/socket.c
index 59e902b9df09..ad22df1ffbd1 100644
--- a/net/socket.c
+++ b/net/socket.c
@@ -1910,22 +1910,18 @@ static int copy_msghdr_from_user(struct msghdr *kmsg,
 				 struct sockaddr __user **save_addr,
 				 struct iovec **iov)
 {
-	struct sockaddr __user *uaddr;
-	struct iovec __user *uiov;
-	size_t nr_segs;
+	struct user_msghdr msg;
 	ssize_t err;
 
-	if (!access_ok(VERIFY_READ, umsg, sizeof(*umsg)) ||
-	    __get_user(uaddr, &umsg->msg_name) ||
-	    __get_user(kmsg->msg_namelen, &umsg->msg_namelen) ||
-	    __get_user(uiov, &umsg->msg_iov) ||
-	    __get_user(nr_segs, &umsg->msg_iovlen) ||
-	    __get_user(kmsg->msg_control, &umsg->msg_control) ||
-	    __get_user(kmsg->msg_controllen, &umsg->msg_controllen) ||
-	    __get_user(kmsg->msg_flags, &umsg->msg_flags))
+	if (copy_from_user(&msg, umsg, sizeof(*umsg)))
 		return -EFAULT;
 
-	if (!uaddr)
+	kmsg->msg_control = (void __force *)msg.msg_control;
+	kmsg->msg_controllen = msg.msg_controllen;
+	kmsg->msg_flags = msg.msg_flags;
+
+	kmsg->msg_namelen = msg.msg_namelen;
+	if (!msg.msg_name)
 		kmsg->msg_namelen = 0;
 
 	if (kmsg->msg_namelen < 0)
@@ -1935,11 +1931,12 @@ static int copy_msghdr_from_user(struct msghdr *kmsg,
 		kmsg->msg_namelen = sizeof(struct sockaddr_storage);
 
 	if (save_addr)
-		*save_addr = uaddr;
+		*save_addr = msg.msg_name;
 
-	if (uaddr && kmsg->msg_namelen) {
+	if (msg.msg_name && kmsg->msg_namelen) {
 		if (!save_addr) {
-			err = move_addr_to_kernel(uaddr, kmsg->msg_namelen,
+			err = move_addr_to_kernel(msg.msg_name,
+						  kmsg->msg_namelen,
 						  kmsg->msg_name);
 			if (err < 0)
 				return err;
@@ -1949,12 +1946,13 @@ static int copy_msghdr_from_user(struct msghdr *kmsg,
 		kmsg->msg_namelen = 0;
 	}
 
-	if (nr_segs > UIO_MAXIOV)
+	if (msg.msg_iovlen > UIO_MAXIOV)
 		return -EMSGSIZE;
 
 	kmsg->msg_iocb = NULL;
 
-	return import_iovec(save_addr ? READ : WRITE, uiov, nr_segs,
+	return import_iovec(save_addr ? READ : WRITE,
+			    msg.msg_iov, msg.msg_iovlen,
 			    UIO_FASTIOV, iov, &kmsg->msg_iter);
 }
 
diff --git a/net/sunrpc/auth_gss/gss_krb5_crypto.c b/net/sunrpc/auth_gss/gss_krb5_crypto.c
index fb39284ec174..12649c9fedab 100644
--- a/net/sunrpc/auth_gss/gss_krb5_crypto.c
+++ b/net/sunrpc/auth_gss/gss_krb5_crypto.c
@@ -34,6 +34,7 @@
  * WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE.
  */
 
+#include <crypto/algapi.h>
 #include <crypto/hash.h>
 #include <crypto/skcipher.h>
 #include <linux/err.h>
@@ -927,7 +928,7 @@ gss_krb5_aes_decrypt(struct krb5_ctx *kctx, u32 offset, struct xdr_buf *buf,
 	if (ret)
 		goto out_err;
 
-	if (memcmp(pkt_hmac, our_hmac, kctx->gk5e->cksumlength) != 0) {
+	if (crypto_memneq(pkt_hmac, our_hmac, kctx->gk5e->cksumlength) != 0) {
 		ret = GSS_S_BAD_SIG;
 		goto out_err;
 	}
diff --git a/net/sunrpc/auth_gss/gss_rpc_upcall.c b/net/sunrpc/auth_gss/gss_rpc_upcall.c
index f0c6a8c78a56..46b295e4f2b8 100644
--- a/net/sunrpc/auth_gss/gss_rpc_upcall.c
+++ b/net/sunrpc/auth_gss/gss_rpc_upcall.c
@@ -55,15 +55,15 @@ enum {
 #define PROC(proc, name)				\
 [GSSX_##proc] = {					\
 	.p_proc   = GSSX_##proc,			\
-	.p_encode = (kxdreproc_t)gssx_enc_##name,	\
-	.p_decode = (kxdrdproc_t)gssx_dec_##name,	\
+	.p_encode = gssx_enc_##name,	\
+	.p_decode = gssx_dec_##name,	\
 	.p_arglen = GSSX_ARG_##name##_sz,		\
 	.p_replen = GSSX_RES_##name##_sz, 		\
 	.p_statidx = GSSX_##proc,			\
 	.p_name   = #proc,				\
 }
 
-static struct rpc_procinfo gssp_procedures[] = {
+static const struct rpc_procinfo gssp_procedures[] = {
 	PROC(INDICATE_MECHS, indicate_mechs),
         PROC(GET_CALL_CONTEXT, get_call_context),
         PROC(IMPORT_AND_CANON_NAME, import_and_canon_name),
@@ -364,11 +364,12 @@ void gssp_free_upcall_data(struct gssp_upcall_data *data)
 /*
  * Initialization stuff
  */
-
+static unsigned int gssp_version1_counts[ARRAY_SIZE(gssp_procedures)];
 static const struct rpc_version gssp_version1 = {
 	.number		= GSSPROXY_VERS_1,
 	.nrprocs	= ARRAY_SIZE(gssp_procedures),
 	.procs		= gssp_procedures,
+	.counts		= gssp_version1_counts,
 };
 
 static const struct rpc_version *gssp_version[] = {
diff --git a/net/sunrpc/auth_gss/gss_rpc_xdr.c b/net/sunrpc/auth_gss/gss_rpc_xdr.c
index 25d9a9cf7b66..c4778cae58ef 100644
--- a/net/sunrpc/auth_gss/gss_rpc_xdr.c
+++ b/net/sunrpc/auth_gss/gss_rpc_xdr.c
@@ -44,7 +44,7 @@ static int gssx_dec_bool(struct xdr_stream *xdr, u32 *v)
 }
 
 static int gssx_enc_buffer(struct xdr_stream *xdr,
-			   gssx_buffer *buf)
+			   const gssx_buffer *buf)
 {
 	__be32 *p;
 
@@ -56,7 +56,7 @@ static int gssx_enc_buffer(struct xdr_stream *xdr,
 }
 
 static int gssx_enc_in_token(struct xdr_stream *xdr,
-			     struct gssp_in_token *in)
+			     const struct gssp_in_token *in)
 {
 	__be32 *p;
 
@@ -130,7 +130,7 @@ static int gssx_dec_option(struct xdr_stream *xdr,
 }
 
 static int dummy_enc_opt_array(struct xdr_stream *xdr,
-				struct gssx_option_array *oa)
+				const struct gssx_option_array *oa)
 {
 	__be32 *p;
 
@@ -348,7 +348,7 @@ static int gssx_dec_status(struct xdr_stream *xdr,
 }
 
 static int gssx_enc_call_ctx(struct xdr_stream *xdr,
-			     struct gssx_call_ctx *ctx)
+			     const struct gssx_call_ctx *ctx)
 {
 	struct gssx_option opt;
 	__be32 *p;
@@ -733,8 +733,9 @@ static int gssx_enc_cb(struct xdr_stream *xdr, struct gssx_cb *cb)
 
 void gssx_enc_accept_sec_context(struct rpc_rqst *req,
 				 struct xdr_stream *xdr,
-				 struct gssx_arg_accept_sec_context *arg)
+				 const void *data)
 {
+	const struct gssx_arg_accept_sec_context *arg = data;
 	int err;
 
 	err = gssx_enc_call_ctx(xdr, &arg->call_ctx);
@@ -789,8 +790,9 @@ done:
 
 int gssx_dec_accept_sec_context(struct rpc_rqst *rqstp,
 				struct xdr_stream *xdr,
-				struct gssx_res_accept_sec_context *res)
+				void *data)
 {
+	struct gssx_res_accept_sec_context *res = data;
 	u32 value_follows;
 	int err;
 	struct page *scratch;
diff --git a/net/sunrpc/auth_gss/gss_rpc_xdr.h b/net/sunrpc/auth_gss/gss_rpc_xdr.h
index 9d88c6239f01..146c31032917 100644
--- a/net/sunrpc/auth_gss/gss_rpc_xdr.h
+++ b/net/sunrpc/auth_gss/gss_rpc_xdr.h
@@ -179,10 +179,10 @@ struct gssx_res_accept_sec_context {
 #define gssx_dec_init_sec_context NULL
 void gssx_enc_accept_sec_context(struct rpc_rqst *req,
 				 struct xdr_stream *xdr,
-				 struct gssx_arg_accept_sec_context *args);
+				 const void *data);
 int gssx_dec_accept_sec_context(struct rpc_rqst *rqstp,
 				struct xdr_stream *xdr,
-				struct gssx_res_accept_sec_context *res);
+				void *data);
 #define gssx_enc_release_handle NULL
 #define gssx_dec_release_handle NULL
 #define gssx_enc_get_mic NULL
diff --git a/net/sunrpc/auth_gss/svcauth_gss.c b/net/sunrpc/auth_gss/svcauth_gss.c
index a54a7a3d28f5..7b1ee5a0b03c 100644
--- a/net/sunrpc/auth_gss/svcauth_gss.c
+++ b/net/sunrpc/auth_gss/svcauth_gss.c
@@ -838,6 +838,14 @@ unwrap_integ_data(struct svc_rqst *rqstp, struct xdr_buf *buf, u32 seq, struct g
 	struct xdr_netobj mic;
 	struct xdr_buf integ_buf;
 
+	/* NFS READ normally uses splice to send data in-place. However
+	 * the data in cache can change after the reply's MIC is computed
+	 * but before the RPC reply is sent. To prevent the client from
+	 * rejecting the server-computed MIC in this somewhat rare case,
+	 * do not use splice with the GSS integrity service.
+	 */
+	clear_bit(RQ_SPLICE_OK, &rqstp->rq_flags);
+
 	/* Did we already verify the signature on the original pass through? */
 	if (rqstp->rq_deferred)
 		return 0;
diff --git a/net/sunrpc/clnt.c b/net/sunrpc/clnt.c
index b5cb921775a0..2e49d1f892b7 100644
--- a/net/sunrpc/clnt.c
+++ b/net/sunrpc/clnt.c
@@ -1517,14 +1517,16 @@ static void
 call_start(struct rpc_task *task)
 {
 	struct rpc_clnt	*clnt = task->tk_client;
+	int idx = task->tk_msg.rpc_proc->p_statidx;
 
 	dprintk("RPC: %5u call_start %s%d proc %s (%s)\n", task->tk_pid,
 			clnt->cl_program->name, clnt->cl_vers,
 			rpc_proc_name(task),
 			(RPC_IS_ASYNC(task) ? "async" : "sync"));
 
-	/* Increment call count */
-	task->tk_msg.rpc_proc->p_count++;
+	/* Increment call count (version might not be valid for ping) */
+	if (clnt->cl_program->version[clnt->cl_vers])
+		clnt->cl_program->version[clnt->cl_vers]->counts[idx]++;
 	clnt->cl_stats->rpccnt++;
 	task->tk_action = call_reserve;
 }
@@ -1672,7 +1674,7 @@ call_allocate(struct rpc_task *task)
 	unsigned int slack = task->tk_rqstp->rq_cred->cr_auth->au_cslack;
 	struct rpc_rqst *req = task->tk_rqstp;
 	struct rpc_xprt *xprt = req->rq_xprt;
-	struct rpc_procinfo *proc = task->tk_msg.rpc_proc;
+	const struct rpc_procinfo *proc = task->tk_msg.rpc_proc;
 	int status;
 
 	dprint_status(task);
@@ -2476,16 +2478,18 @@ out_overflow:
 	goto out_garbage;
 }
 
-static void rpcproc_encode_null(void *rqstp, struct xdr_stream *xdr, void *obj)
+static void rpcproc_encode_null(struct rpc_rqst *rqstp, struct xdr_stream *xdr,
+		const void *obj)
 {
 }
 
-static int rpcproc_decode_null(void *rqstp, struct xdr_stream *xdr, void *obj)
+static int rpcproc_decode_null(struct rpc_rqst *rqstp, struct xdr_stream *xdr,
+		void *obj)
 {
 	return 0;
 }
 
-static struct rpc_procinfo rpcproc_null = {
+static const struct rpc_procinfo rpcproc_null = {
 	.p_encode = rpcproc_encode_null,
 	.p_decode = rpcproc_decode_null,
 };
diff --git a/net/sunrpc/rpcb_clnt.c b/net/sunrpc/rpcb_clnt.c
index 5b30603596d0..ea0676f199c8 100644
--- a/net/sunrpc/rpcb_clnt.c
+++ b/net/sunrpc/rpcb_clnt.c
@@ -128,13 +128,13 @@ struct rpcbind_args {
 	int			r_status;
 };
 
-static struct rpc_procinfo rpcb_procedures2[];
-static struct rpc_procinfo rpcb_procedures3[];
-static struct rpc_procinfo rpcb_procedures4[];
+static const struct rpc_procinfo rpcb_procedures2[];
+static const struct rpc_procinfo rpcb_procedures3[];
+static const struct rpc_procinfo rpcb_procedures4[];
 
 struct rpcb_info {
 	u32			rpc_vers;
-	struct rpc_procinfo *	rpc_proc;
+	const struct rpc_procinfo *rpc_proc;
 };
 
 static const struct rpcb_info rpcb_next_version[];
@@ -620,7 +620,8 @@ int rpcb_v4_register(struct net *net, const u32 program, const u32 version,
 	return -EAFNOSUPPORT;
 }
 
-static struct rpc_task *rpcb_call_async(struct rpc_clnt *rpcb_clnt, struct rpcbind_args *map, struct rpc_procinfo *proc)
+static struct rpc_task *rpcb_call_async(struct rpc_clnt *rpcb_clnt,
+		struct rpcbind_args *map, const struct rpc_procinfo *proc)
 {
 	struct rpc_message msg = {
 		.rpc_proc = proc,
@@ -671,7 +672,7 @@ static struct rpc_clnt *rpcb_find_transport_owner(struct rpc_clnt *clnt)
 void rpcb_getport_async(struct rpc_task *task)
 {
 	struct rpc_clnt *clnt;
-	struct rpc_procinfo *proc;
+	const struct rpc_procinfo *proc;
 	u32 bind_version;
 	struct rpc_xprt *xprt;
 	struct rpc_clnt	*rpcb_clnt;
@@ -843,8 +844,9 @@ static void rpcb_getport_done(struct rpc_task *child, void *data)
  */
 
 static void rpcb_enc_mapping(struct rpc_rqst *req, struct xdr_stream *xdr,
-			     const struct rpcbind_args *rpcb)
+			     const void *data)
 {
+	const struct rpcbind_args *rpcb = data;
 	__be32 *p;
 
 	dprintk("RPC: %5u encoding PMAP_%s call (%u, %u, %d, %u)\n",
@@ -860,8 +862,9 @@ static void rpcb_enc_mapping(struct rpc_rqst *req, struct xdr_stream *xdr,
 }
 
 static int rpcb_dec_getport(struct rpc_rqst *req, struct xdr_stream *xdr,
-			    struct rpcbind_args *rpcb)
+			    void *data)
 {
+	struct rpcbind_args *rpcb = data;
 	unsigned long port;
 	__be32 *p;
 
@@ -882,8 +885,9 @@ static int rpcb_dec_getport(struct rpc_rqst *req, struct xdr_stream *xdr,
 }
 
 static int rpcb_dec_set(struct rpc_rqst *req, struct xdr_stream *xdr,
-			unsigned int *boolp)
+			void *data)
 {
+	unsigned int *boolp = data;
 	__be32 *p;
 
 	p = xdr_inline_decode(xdr, 4);
@@ -917,8 +921,9 @@ static void encode_rpcb_string(struct xdr_stream *xdr, const char *string,
 }
 
 static void rpcb_enc_getaddr(struct rpc_rqst *req, struct xdr_stream *xdr,
-			     const struct rpcbind_args *rpcb)
+			     const void *data)
 {
+	const struct rpcbind_args *rpcb = data;
 	__be32 *p;
 
 	dprintk("RPC: %5u encoding RPCB_%s call (%u, %u, '%s', '%s')\n",
@@ -937,8 +942,9 @@ static void rpcb_enc_getaddr(struct rpc_rqst *req, struct xdr_stream *xdr,
 }
 
 static int rpcb_dec_getaddr(struct rpc_rqst *req, struct xdr_stream *xdr,
-			    struct rpcbind_args *rpcb)
+			    void *data)
 {
+	struct rpcbind_args *rpcb = data;
 	struct sockaddr_storage address;
 	struct sockaddr *sap = (struct sockaddr *)&address;
 	__be32 *p;
@@ -989,11 +995,11 @@ out_fail:
  * since the Linux kernel RPC code requires only these.
  */
 
-static struct rpc_procinfo rpcb_procedures2[] = {
+static const struct rpc_procinfo rpcb_procedures2[] = {
 	[RPCBPROC_SET] = {
 		.p_proc		= RPCBPROC_SET,
-		.p_encode	= (kxdreproc_t)rpcb_enc_mapping,
-		.p_decode	= (kxdrdproc_t)rpcb_dec_set,
+		.p_encode	= rpcb_enc_mapping,
+		.p_decode	= rpcb_dec_set,
 		.p_arglen	= RPCB_mappingargs_sz,
 		.p_replen	= RPCB_setres_sz,
 		.p_statidx	= RPCBPROC_SET,
@@ -1002,8 +1008,8 @@ static struct rpc_procinfo rpcb_procedures2[] = {
 	},
 	[RPCBPROC_UNSET] = {
 		.p_proc		= RPCBPROC_UNSET,
-		.p_encode	= (kxdreproc_t)rpcb_enc_mapping,
-		.p_decode	= (kxdrdproc_t)rpcb_dec_set,
+		.p_encode	= rpcb_enc_mapping,
+		.p_decode	= rpcb_dec_set,
 		.p_arglen	= RPCB_mappingargs_sz,
 		.p_replen	= RPCB_setres_sz,
 		.p_statidx	= RPCBPROC_UNSET,
@@ -1012,8 +1018,8 @@ static struct rpc_procinfo rpcb_procedures2[] = {
 	},
 	[RPCBPROC_GETPORT] = {
 		.p_proc		= RPCBPROC_GETPORT,
-		.p_encode	= (kxdreproc_t)rpcb_enc_mapping,
-		.p_decode	= (kxdrdproc_t)rpcb_dec_getport,
+		.p_encode	= rpcb_enc_mapping,
+		.p_decode	= rpcb_dec_getport,
 		.p_arglen	= RPCB_mappingargs_sz,
 		.p_replen	= RPCB_getportres_sz,
 		.p_statidx	= RPCBPROC_GETPORT,
@@ -1022,11 +1028,11 @@ static struct rpc_procinfo rpcb_procedures2[] = {
 	},
 };
 
-static struct rpc_procinfo rpcb_procedures3[] = {
+static const struct rpc_procinfo rpcb_procedures3[] = {
 	[RPCBPROC_SET] = {
 		.p_proc		= RPCBPROC_SET,
-		.p_encode	= (kxdreproc_t)rpcb_enc_getaddr,
-		.p_decode	= (kxdrdproc_t)rpcb_dec_set,
+		.p_encode	= rpcb_enc_getaddr,
+		.p_decode	= rpcb_dec_set,
 		.p_arglen	= RPCB_getaddrargs_sz,
 		.p_replen	= RPCB_setres_sz,
 		.p_statidx	= RPCBPROC_SET,
@@ -1035,8 +1041,8 @@ static struct rpc_procinfo rpcb_procedures3[] = {
 	},
 	[RPCBPROC_UNSET] = {
 		.p_proc		= RPCBPROC_UNSET,
-		.p_encode	= (kxdreproc_t)rpcb_enc_getaddr,
-		.p_decode	= (kxdrdproc_t)rpcb_dec_set,
+		.p_encode	= rpcb_enc_getaddr,
+		.p_decode	= rpcb_dec_set,
 		.p_arglen	= RPCB_getaddrargs_sz,
 		.p_replen	= RPCB_setres_sz,
 		.p_statidx	= RPCBPROC_UNSET,
@@ -1045,8 +1051,8 @@ static struct rpc_procinfo rpcb_procedures3[] = {
 	},
 	[RPCBPROC_GETADDR] = {
 		.p_proc		= RPCBPROC_GETADDR,
-		.p_encode	= (kxdreproc_t)rpcb_enc_getaddr,
-		.p_decode	= (kxdrdproc_t)rpcb_dec_getaddr,
+		.p_encode	= rpcb_enc_getaddr,
+		.p_decode	= rpcb_dec_getaddr,
 		.p_arglen	= RPCB_getaddrargs_sz,
 		.p_replen	= RPCB_getaddrres_sz,
 		.p_statidx	= RPCBPROC_GETADDR,
@@ -1055,11 +1061,11 @@ static struct rpc_procinfo rpcb_procedures3[] = {
 	},
 };
 
-static struct rpc_procinfo rpcb_procedures4[] = {
+static const struct rpc_procinfo rpcb_procedures4[] = {
 	[RPCBPROC_SET] = {
 		.p_proc		= RPCBPROC_SET,
-		.p_encode	= (kxdreproc_t)rpcb_enc_getaddr,
-		.p_decode	= (kxdrdproc_t)rpcb_dec_set,
+		.p_encode	= rpcb_enc_getaddr,
+		.p_decode	= rpcb_dec_set,
 		.p_arglen	= RPCB_getaddrargs_sz,
 		.p_replen	= RPCB_setres_sz,
 		.p_statidx	= RPCBPROC_SET,
@@ -1068,8 +1074,8 @@ static struct rpc_procinfo rpcb_procedures4[] = {
 	},
 	[RPCBPROC_UNSET] = {
 		.p_proc		= RPCBPROC_UNSET,
-		.p_encode	= (kxdreproc_t)rpcb_enc_getaddr,
-		.p_decode	= (kxdrdproc_t)rpcb_dec_set,
+		.p_encode	= rpcb_enc_getaddr,
+		.p_decode	= rpcb_dec_set,
 		.p_arglen	= RPCB_getaddrargs_sz,
 		.p_replen	= RPCB_setres_sz,
 		.p_statidx	= RPCBPROC_UNSET,
@@ -1078,8 +1084,8 @@ static struct rpc_procinfo rpcb_procedures4[] = {
 	},
 	[RPCBPROC_GETADDR] = {
 		.p_proc		= RPCBPROC_GETADDR,
-		.p_encode	= (kxdreproc_t)rpcb_enc_getaddr,
-		.p_decode	= (kxdrdproc_t)rpcb_dec_getaddr,
+		.p_encode	= rpcb_enc_getaddr,
+		.p_decode	= rpcb_dec_getaddr,
 		.p_arglen	= RPCB_getaddrargs_sz,
 		.p_replen	= RPCB_getaddrres_sz,
 		.p_statidx	= RPCBPROC_GETADDR,
@@ -1112,22 +1118,28 @@ static const struct rpcb_info rpcb_next_version6[] = {
 	},
 };
 
+static unsigned int rpcb_version2_counts[ARRAY_SIZE(rpcb_procedures2)];
 static const struct rpc_version rpcb_version2 = {
 	.number		= RPCBVERS_2,
 	.nrprocs	= ARRAY_SIZE(rpcb_procedures2),
-	.procs		= rpcb_procedures2
+	.procs		= rpcb_procedures2,
+	.counts		= rpcb_version2_counts,
 };
 
+static unsigned int rpcb_version3_counts[ARRAY_SIZE(rpcb_procedures3)];
 static const struct rpc_version rpcb_version3 = {
 	.number		= RPCBVERS_3,
 	.nrprocs	= ARRAY_SIZE(rpcb_procedures3),
-	.procs		= rpcb_procedures3
+	.procs		= rpcb_procedures3,
+	.counts		= rpcb_version3_counts,
 };
 
+static unsigned int rpcb_version4_counts[ARRAY_SIZE(rpcb_procedures4)];
 static const struct rpc_version rpcb_version4 = {
 	.number		= RPCBVERS_4,
 	.nrprocs	= ARRAY_SIZE(rpcb_procedures4),
-	.procs		= rpcb_procedures4
+	.procs		= rpcb_procedures4,
+	.counts		= rpcb_version4_counts,
 };
 
 static const struct rpc_version *rpcb_version[] = {
diff --git a/net/sunrpc/stats.c b/net/sunrpc/stats.c
index caeb01ad2b5a..1e671333c3d5 100644
--- a/net/sunrpc/stats.c
+++ b/net/sunrpc/stats.c
@@ -55,8 +55,7 @@ static int rpc_proc_show(struct seq_file *seq, void *v) {
 		seq_printf(seq, "proc%u %u",
 					vers->number, vers->nrprocs);
 		for (j = 0; j < vers->nrprocs; j++)
-			seq_printf(seq, " %u",
-					vers->procs[j].p_count);
+			seq_printf(seq, " %u", vers->counts[j]);
 		seq_putc(seq, '\n');
 	}
 	return 0;
@@ -78,9 +77,9 @@ static const struct file_operations rpc_proc_fops = {
 /*
  * Get RPC server stats
  */
-void svc_seq_show(struct seq_file *seq, const struct svc_stat *statp) {
+void svc_seq_show(struct seq_file *seq, const struct svc_stat *statp)
+{
 	const struct svc_program *prog = statp->program;
-	const struct svc_procedure *proc;
 	const struct svc_version *vers;
 	unsigned int i, j;
 
@@ -99,11 +98,12 @@ void svc_seq_show(struct seq_file *seq, const struct svc_stat *statp) {
 			statp->rpcbadclnt);
 
 	for (i = 0; i < prog->pg_nvers; i++) {
-		if (!(vers = prog->pg_vers[i]) || !(proc = vers->vs_proc))
+		vers = prog->pg_vers[i];
+		if (!vers)
 			continue;
 		seq_printf(seq, "proc%d %u", i, vers->vs_nproc);
-		for (j = 0; j < vers->vs_nproc; j++, proc++)
-			seq_printf(seq, " %u", proc->pc_count);
+		for (j = 0; j < vers->vs_nproc; j++)
+			seq_printf(seq, " %u", vers->vs_count[j]);
 		seq_putc(seq, '\n');
 	}
 }
@@ -192,7 +192,7 @@ void rpc_count_iostats(const struct rpc_task *task, struct rpc_iostats *stats)
 EXPORT_SYMBOL_GPL(rpc_count_iostats);
 
 static void _print_name(struct seq_file *seq, unsigned int op,
-			struct rpc_procinfo *procs)
+			const struct rpc_procinfo *procs)
 {
 	if (procs[op].p_name)
 		seq_printf(seq, "\t%12s: ", procs[op].p_name);
diff --git a/net/sunrpc/svc.c b/net/sunrpc/svc.c
index bc0f5a0ecbdc..85ce0db5b0a6 100644
--- a/net/sunrpc/svc.c
+++ b/net/sunrpc/svc.c
@@ -1008,7 +1008,7 @@ int svc_register(const struct svc_serv *serv, struct net *net,
 		 const unsigned short port)
 {
 	struct svc_program	*progp;
-	struct svc_version	*vers;
+	const struct svc_version *vers;
 	unsigned int		i;
 	int			error = 0;
 
@@ -1151,10 +1151,9 @@ static int
 svc_process_common(struct svc_rqst *rqstp, struct kvec *argv, struct kvec *resv)
 {
 	struct svc_program	*progp;
-	struct svc_version	*versp = NULL;	/* compiler food */
-	struct svc_procedure	*procp = NULL;
+	const struct svc_version *versp = NULL;	/* compiler food */
+	const struct svc_procedure *procp = NULL;
 	struct svc_serv		*serv = rqstp->rq_server;
-	kxdrproc_t		xdr;
 	__be32			*statp;
 	u32			prog, vers, proc;
 	__be32			auth_stat, rpc_stat;
@@ -1166,7 +1165,7 @@ svc_process_common(struct svc_rqst *rqstp, struct kvec *argv, struct kvec *resv)
 	if (argv->iov_len < 6*4)
 		goto err_short_len;
 
-	/* Will be turned off only in gss privacy case: */
+	/* Will be turned off by GSS integrity and privacy services */
 	set_bit(RQ_SPLICE_OK, &rqstp->rq_flags);
 	/* Will be turned off only when NFSv4 Sessions are used */
 	set_bit(RQ_USEDEFERRAL, &rqstp->rq_flags);
@@ -1262,7 +1261,7 @@ svc_process_common(struct svc_rqst *rqstp, struct kvec *argv, struct kvec *resv)
 	svc_putnl(resv, RPC_SUCCESS);
 
 	/* Bump per-procedure stats counter */
-	procp->pc_count++;
+	versp->vs_count[proc]++;
 
 	/* Initialize storage for argp and resp */
 	memset(rqstp->rq_argp, 0, procp->pc_argsize);
@@ -1276,28 +1275,30 @@ svc_process_common(struct svc_rqst *rqstp, struct kvec *argv, struct kvec *resv)
 
 	/* Call the function that processes the request. */
 	if (!versp->vs_dispatch) {
-		/* Decode arguments */
-		xdr = procp->pc_decode;
-		if (xdr && !xdr(rqstp, argv->iov_base, rqstp->rq_argp))
+		/*
+		 * Decode arguments
+		 * XXX: why do we ignore the return value?
+		 */
+		if (procp->pc_decode &&
+		    !procp->pc_decode(rqstp, argv->iov_base))
 			goto err_garbage;
 
-		*statp = procp->pc_func(rqstp, rqstp->rq_argp, rqstp->rq_resp);
+		*statp = procp->pc_func(rqstp);
 
 		/* Encode reply */
 		if (*statp == rpc_drop_reply ||
 		    test_bit(RQ_DROPME, &rqstp->rq_flags)) {
 			if (procp->pc_release)
-				procp->pc_release(rqstp, NULL, rqstp->rq_resp);
+				procp->pc_release(rqstp);
 			goto dropit;
 		}
 		if (*statp == rpc_autherr_badcred) {
 			if (procp->pc_release)
-				procp->pc_release(rqstp, NULL, rqstp->rq_resp);
+				procp->pc_release(rqstp);
 			goto err_bad_auth;
 		}
-		if (*statp == rpc_success &&
-		    (xdr = procp->pc_encode) &&
-		    !xdr(rqstp, resv->iov_base+resv->iov_len, rqstp->rq_resp)) {
+		if (*statp == rpc_success && procp->pc_encode &&
+		    !procp->pc_encode(rqstp, resv->iov_base + resv->iov_len)) {
 			dprintk("svc: failed to encode reply\n");
 			/* serv->sv_stats->rpcsystemerr++; */
 			*statp = rpc_system_err;
@@ -1307,7 +1308,7 @@ svc_process_common(struct svc_rqst *rqstp, struct kvec *argv, struct kvec *resv)
 		if (!versp->vs_dispatch(rqstp, statp)) {
 			/* Release reply info */
 			if (procp->pc_release)
-				procp->pc_release(rqstp, NULL, rqstp->rq_resp);
+				procp->pc_release(rqstp);
 			goto dropit;
 		}
 	}
@@ -1318,7 +1319,7 @@ svc_process_common(struct svc_rqst *rqstp, struct kvec *argv, struct kvec *resv)
 
 	/* Release reply info */
 	if (procp->pc_release)
-		procp->pc_release(rqstp, NULL, rqstp->rq_resp);
+		procp->pc_release(rqstp);
 
 	if (procp->pc_encode == NULL)
 		goto dropit;
diff --git a/net/sunrpc/svc_xprt.c b/net/sunrpc/svc_xprt.c
index 7bfe1fb42add..d16a8b423c20 100644
--- a/net/sunrpc/svc_xprt.c
+++ b/net/sunrpc/svc_xprt.c
@@ -659,11 +659,13 @@ static int svc_alloc_arg(struct svc_rqst *rqstp)
 	int i;
 
 	/* now allocate needed pages.  If we get a failure, sleep briefly */
-	pages = (serv->sv_max_mesg + PAGE_SIZE) / PAGE_SIZE;
-	WARN_ON_ONCE(pages >= RPCSVC_MAXPAGES);
-	if (pages >= RPCSVC_MAXPAGES)
+	pages = (serv->sv_max_mesg + 2 * PAGE_SIZE) >> PAGE_SHIFT;
+	if (pages > RPCSVC_MAXPAGES) {
+		pr_warn_once("svc: warning: pages=%u > RPCSVC_MAXPAGES=%lu\n",
+			     pages, RPCSVC_MAXPAGES);
 		/* use as many pages as possible */
-		pages = RPCSVC_MAXPAGES - 1;
+		pages = RPCSVC_MAXPAGES;
+	}
 	for (i = 0; i < pages ; i++)
 		while (rqstp->rq_pages[i] == NULL) {
 			struct page *p = alloc_page(GFP_KERNEL);
diff --git a/net/sunrpc/xprt.c b/net/sunrpc/xprt.c
index 3e63c5e97ebe..4654a9934269 100644
--- a/net/sunrpc/xprt.c
+++ b/net/sunrpc/xprt.c
@@ -1047,13 +1047,15 @@ out:
 	return ret;
 }
 
-static struct rpc_rqst *xprt_dynamic_alloc_slot(struct rpc_xprt *xprt, gfp_t gfp_flags)
+static struct rpc_rqst *xprt_dynamic_alloc_slot(struct rpc_xprt *xprt)
 {
 	struct rpc_rqst *req = ERR_PTR(-EAGAIN);
 
 	if (!atomic_add_unless(&xprt->num_reqs, 1, xprt->max_reqs))
 		goto out;
-	req = kzalloc(sizeof(struct rpc_rqst), gfp_flags);
+	spin_unlock(&xprt->reserve_lock);
+	req = kzalloc(sizeof(struct rpc_rqst), GFP_NOFS);
+	spin_lock(&xprt->reserve_lock);
 	if (req != NULL)
 		goto out;
 	atomic_dec(&xprt->num_reqs);
@@ -1081,7 +1083,7 @@ void xprt_alloc_slot(struct rpc_xprt *xprt, struct rpc_task *task)
 		list_del(&req->rq_list);
 		goto out_init_req;
 	}
-	req = xprt_dynamic_alloc_slot(xprt, GFP_NOWAIT|__GFP_NOWARN);
+	req = xprt_dynamic_alloc_slot(xprt);
 	if (!IS_ERR(req))
 		goto out_init_req;
 	switch (PTR_ERR(req)) {
diff --git a/net/sunrpc/xprtrdma/Makefile b/net/sunrpc/xprtrdma/Makefile
index c1ae8142ab73..b8213ddce2f2 100644
--- a/net/sunrpc/xprtrdma/Makefile
+++ b/net/sunrpc/xprtrdma/Makefile
@@ -3,6 +3,6 @@ obj-$(CONFIG_SUNRPC_XPRT_RDMA) += rpcrdma.o
 rpcrdma-y := transport.o rpc_rdma.o verbs.o \
 	fmr_ops.o frwr_ops.o \
 	svc_rdma.o svc_rdma_backchannel.o svc_rdma_transport.o \
-	svc_rdma_marshal.o svc_rdma_sendto.o svc_rdma_recvfrom.o \
-	svc_rdma_rw.o module.o
+	svc_rdma_sendto.o svc_rdma_recvfrom.o svc_rdma_rw.o \
+	module.o
 rpcrdma-$(CONFIG_SUNRPC_BACKCHANNEL) += backchannel.o
diff --git a/net/sunrpc/xprtrdma/fmr_ops.c b/net/sunrpc/xprtrdma/fmr_ops.c
index 59e64025ed96..d3f84bb1d443 100644
--- a/net/sunrpc/xprtrdma/fmr_ops.c
+++ b/net/sunrpc/xprtrdma/fmr_ops.c
@@ -91,7 +91,7 @@ __fmr_unmap(struct rpcrdma_mw *mw)
 
 	list_add(&mw->fmr.fm_mr->list, &l);
 	rc = ib_unmap_fmr(&l);
-	list_del_init(&mw->fmr.fm_mr->list);
+	list_del(&mw->fmr.fm_mr->list);
 	return rc;
 }
 
@@ -213,13 +213,11 @@ fmr_op_map(struct rpcrdma_xprt *r_xprt, struct rpcrdma_mr_seg *seg,
 		    offset_in_page((seg-1)->mr_offset + (seg-1)->mr_len))
 			break;
 	}
-	mw->mw_nents = i;
 	mw->mw_dir = rpcrdma_data_dir(writing);
-	if (i == 0)
-		goto out_dmamap_err;
 
-	if (!ib_dma_map_sg(r_xprt->rx_ia.ri_device,
-			   mw->mw_sg, mw->mw_nents, mw->mw_dir))
+	mw->mw_nents = ib_dma_map_sg(r_xprt->rx_ia.ri_device,
+				     mw->mw_sg, i, mw->mw_dir);
+	if (!mw->mw_nents)
 		goto out_dmamap_err;
 
 	for (i = 0, dma_pages = mw->fmr.fm_physaddrs; i < mw->mw_nents; i++)
@@ -237,16 +235,18 @@ fmr_op_map(struct rpcrdma_xprt *r_xprt, struct rpcrdma_mr_seg *seg,
 	return mw->mw_nents;
 
 out_dmamap_err:
-	pr_err("rpcrdma: failed to dma map sg %p sg_nents %u\n",
-	       mw->mw_sg, mw->mw_nents);
-	rpcrdma_defer_mr_recovery(mw);
+	pr_err("rpcrdma: failed to DMA map sg %p sg_nents %d\n",
+	       mw->mw_sg, i);
+	rpcrdma_put_mw(r_xprt, mw);
 	return -EIO;
 
 out_maperr:
 	pr_err("rpcrdma: ib_map_phys_fmr %u@0x%llx+%i (%d) status %i\n",
 	       len, (unsigned long long)dma_pages[0],
 	       pageoff, mw->mw_nents, rc);
-	rpcrdma_defer_mr_recovery(mw);
+	ib_dma_unmap_sg(r_xprt->rx_ia.ri_device,
+			mw->mw_sg, mw->mw_nents, mw->mw_dir);
+	rpcrdma_put_mw(r_xprt, mw);
 	return -EIO;
 }
 
@@ -255,24 +255,26 @@ out_maperr:
  * Sleeps until it is safe for the host CPU to access the
  * previously mapped memory regions.
  *
- * Caller ensures that req->rl_registered is not empty.
+ * Caller ensures that @mws is not empty before the call. This
+ * function empties the list.
  */
 static void
-fmr_op_unmap_sync(struct rpcrdma_xprt *r_xprt, struct rpcrdma_req *req)
+fmr_op_unmap_sync(struct rpcrdma_xprt *r_xprt, struct list_head *mws)
 {
-	struct rpcrdma_mw *mw, *tmp;
+	struct rpcrdma_mw *mw;
 	LIST_HEAD(unmap_list);
 	int rc;
 
-	dprintk("RPC:       %s: req %p\n", __func__, req);
-
 	/* ORDER: Invalidate all of the req's MRs first
 	 *
 	 * ib_unmap_fmr() is slow, so use a single call instead
 	 * of one call per mapped FMR.
 	 */
-	list_for_each_entry(mw, &req->rl_registered, mw_list)
+	list_for_each_entry(mw, mws, mw_list) {
+		dprintk("RPC:       %s: unmapping fmr %p\n",
+			__func__, &mw->fmr);
 		list_add_tail(&mw->fmr.fm_mr->list, &unmap_list);
+	}
 	r_xprt->rx_stats.local_inv_needed++;
 	rc = ib_unmap_fmr(&unmap_list);
 	if (rc)
@@ -281,9 +283,11 @@ fmr_op_unmap_sync(struct rpcrdma_xprt *r_xprt, struct rpcrdma_req *req)
 	/* ORDER: Now DMA unmap all of the req's MRs, and return
 	 * them to the free MW list.
 	 */
-	list_for_each_entry_safe(mw, tmp, &req->rl_registered, mw_list) {
-		list_del_init(&mw->mw_list);
-		list_del_init(&mw->fmr.fm_mr->list);
+	while (!list_empty(mws)) {
+		mw = rpcrdma_pop_mw(mws);
+		dprintk("RPC:       %s: DMA unmapping fmr %p\n",
+			__func__, &mw->fmr);
+		list_del(&mw->fmr.fm_mr->list);
 		ib_dma_unmap_sg(r_xprt->rx_ia.ri_device,
 				mw->mw_sg, mw->mw_nents, mw->mw_dir);
 		rpcrdma_put_mw(r_xprt, mw);
@@ -294,8 +298,9 @@ fmr_op_unmap_sync(struct rpcrdma_xprt *r_xprt, struct rpcrdma_req *req)
 out_reset:
 	pr_err("rpcrdma: ib_unmap_fmr failed (%i)\n", rc);
 
-	list_for_each_entry_safe(mw, tmp, &req->rl_registered, mw_list) {
-		list_del_init(&mw->fmr.fm_mr->list);
+	while (!list_empty(mws)) {
+		mw = rpcrdma_pop_mw(mws);
+		list_del(&mw->fmr.fm_mr->list);
 		fmr_op_recover_mr(mw);
 	}
 }
diff --git a/net/sunrpc/xprtrdma/frwr_ops.c b/net/sunrpc/xprtrdma/frwr_ops.c
index f81dd93176c0..6aea36a38bfd 100644
--- a/net/sunrpc/xprtrdma/frwr_ops.c
+++ b/net/sunrpc/xprtrdma/frwr_ops.c
@@ -277,7 +277,7 @@ __frwr_sendcompletion_flush(struct ib_wc *wc, const char *wr)
 }
 
 /**
- * frwr_wc_fastreg - Invoked by RDMA provider for each polled FastReg WC
+ * frwr_wc_fastreg - Invoked by RDMA provider for a flushed FastReg WC
  * @cq:	completion queue (ignored)
  * @wc:	completed WR
  *
@@ -298,7 +298,7 @@ frwr_wc_fastreg(struct ib_cq *cq, struct ib_wc *wc)
 }
 
 /**
- * frwr_wc_localinv - Invoked by RDMA provider for each polled LocalInv WC
+ * frwr_wc_localinv - Invoked by RDMA provider for a flushed LocalInv WC
  * @cq:	completion queue (ignored)
  * @wc:	completed WR
  *
@@ -319,7 +319,7 @@ frwr_wc_localinv(struct ib_cq *cq, struct ib_wc *wc)
 }
 
 /**
- * frwr_wc_localinv - Invoked by RDMA provider for each polled LocalInv WC
+ * frwr_wc_localinv_wake - Invoked by RDMA provider for a signaled LocalInv WC
  * @cq:	completion queue (ignored)
  * @wc:	completed WR
  *
@@ -355,7 +355,7 @@ frwr_op_map(struct rpcrdma_xprt *r_xprt, struct rpcrdma_mr_seg *seg,
 	struct ib_mr *mr;
 	struct ib_reg_wr *reg_wr;
 	struct ib_send_wr *bad_wr;
-	int rc, i, n, dma_nents;
+	int rc, i, n;
 	u8 key;
 
 	mw = NULL;
@@ -391,14 +391,10 @@ frwr_op_map(struct rpcrdma_xprt *r_xprt, struct rpcrdma_mr_seg *seg,
 		    offset_in_page((seg-1)->mr_offset + (seg-1)->mr_len))
 			break;
 	}
-	mw->mw_nents = i;
 	mw->mw_dir = rpcrdma_data_dir(writing);
-	if (i == 0)
-		goto out_dmamap_err;
 
-	dma_nents = ib_dma_map_sg(ia->ri_device,
-				  mw->mw_sg, mw->mw_nents, mw->mw_dir);
-	if (!dma_nents)
+	mw->mw_nents = ib_dma_map_sg(ia->ri_device, mw->mw_sg, i, mw->mw_dir);
+	if (!mw->mw_nents)
 		goto out_dmamap_err;
 
 	n = ib_map_mr_sg(mr, mw->mw_sg, mw->mw_nents, NULL, PAGE_SIZE);
@@ -436,13 +432,14 @@ frwr_op_map(struct rpcrdma_xprt *r_xprt, struct rpcrdma_mr_seg *seg,
 	return mw->mw_nents;
 
 out_dmamap_err:
-	pr_err("rpcrdma: failed to dma map sg %p sg_nents %u\n",
-	       mw->mw_sg, mw->mw_nents);
-	rpcrdma_defer_mr_recovery(mw);
+	pr_err("rpcrdma: failed to DMA map sg %p sg_nents %d\n",
+	       mw->mw_sg, i);
+	frmr->fr_state = FRMR_IS_INVALID;
+	rpcrdma_put_mw(r_xprt, mw);
 	return -EIO;
 
 out_mapmr_err:
-	pr_err("rpcrdma: failed to map mr %p (%u/%u)\n",
+	pr_err("rpcrdma: failed to map mr %p (%d/%d)\n",
 	       frmr->fr_mr, n, mw->mw_nents);
 	rpcrdma_defer_mr_recovery(mw);
 	return -EIO;
@@ -458,21 +455,19 @@ out_senderr:
  * Sleeps until it is safe for the host CPU to access the
  * previously mapped memory regions.
  *
- * Caller ensures that req->rl_registered is not empty.
+ * Caller ensures that @mws is not empty before the call. This
+ * function empties the list.
  */
 static void
-frwr_op_unmap_sync(struct rpcrdma_xprt *r_xprt, struct rpcrdma_req *req)
+frwr_op_unmap_sync(struct rpcrdma_xprt *r_xprt, struct list_head *mws)
 {
 	struct ib_send_wr *first, **prev, *last, *bad_wr;
-	struct rpcrdma_rep *rep = req->rl_reply;
 	struct rpcrdma_ia *ia = &r_xprt->rx_ia;
 	struct rpcrdma_frmr *f;
 	struct rpcrdma_mw *mw;
 	int count, rc;
 
-	dprintk("RPC:       %s: req %p\n", __func__, req);
-
-	/* ORDER: Invalidate all of the req's MRs first
+	/* ORDER: Invalidate all of the MRs first
 	 *
 	 * Chain the LOCAL_INV Work Requests and post them with
 	 * a single ib_post_send() call.
@@ -480,11 +475,10 @@ frwr_op_unmap_sync(struct rpcrdma_xprt *r_xprt, struct rpcrdma_req *req)
 	f = NULL;
 	count = 0;
 	prev = &first;
-	list_for_each_entry(mw, &req->rl_registered, mw_list) {
+	list_for_each_entry(mw, mws, mw_list) {
 		mw->frmr.fr_state = FRMR_IS_INVALID;
 
-		if ((rep->rr_wc_flags & IB_WC_WITH_INVALIDATE) &&
-		    (mw->mw_handle == rep->rr_inv_rkey))
+		if (mw->mw_flags & RPCRDMA_MW_F_RI)
 			continue;
 
 		f = &mw->frmr;
@@ -524,18 +518,19 @@ frwr_op_unmap_sync(struct rpcrdma_xprt *r_xprt, struct rpcrdma_req *req)
 	 * unless ri_id->qp is a valid pointer.
 	 */
 	r_xprt->rx_stats.local_inv_needed++;
+	bad_wr = NULL;
 	rc = ib_post_send(ia->ri_id->qp, first, &bad_wr);
+	if (bad_wr != first)
+		wait_for_completion(&f->fr_linv_done);
 	if (rc)
 		goto reset_mrs;
 
-	wait_for_completion(&f->fr_linv_done);
-
-	/* ORDER: Now DMA unmap all of the req's MRs, and return
+	/* ORDER: Now DMA unmap all of the MRs, and return
 	 * them to the free MW list.
 	 */
 unmap:
-	while (!list_empty(&req->rl_registered)) {
-		mw = rpcrdma_pop_mw(&req->rl_registered);
+	while (!list_empty(mws)) {
+		mw = rpcrdma_pop_mw(mws);
 		dprintk("RPC:       %s: DMA unmapping frmr %p\n",
 			__func__, &mw->frmr);
 		ib_dma_unmap_sg(ia->ri_device,
@@ -546,17 +541,19 @@ unmap:
 
 reset_mrs:
 	pr_err("rpcrdma: FRMR invalidate ib_post_send returned %i\n", rc);
-	rdma_disconnect(ia->ri_id);
 
 	/* Find and reset the MRs in the LOCAL_INV WRs that did not
-	 * get posted. This is synchronous, and slow.
+	 * get posted.
 	 */
-	list_for_each_entry(mw, &req->rl_registered, mw_list) {
-		f = &mw->frmr;
-		if (mw->mw_handle == bad_wr->ex.invalidate_rkey) {
-			__frwr_reset_mr(ia, mw);
-			bad_wr = bad_wr->next;
-		}
+	rpcrdma_init_cqcount(&r_xprt->rx_ep, -count);
+	while (bad_wr) {
+		f = container_of(bad_wr, struct rpcrdma_frmr,
+				 fr_invwr);
+		mw = container_of(f, struct rpcrdma_mw, frmr);
+
+		__frwr_reset_mr(ia, mw);
+
+		bad_wr = bad_wr->next;
 	}
 	goto unmap;
 }
diff --git a/net/sunrpc/xprtrdma/rpc_rdma.c b/net/sunrpc/xprtrdma/rpc_rdma.c
index 694e9b13ecf0..ca4d6e4528f3 100644
--- a/net/sunrpc/xprtrdma/rpc_rdma.c
+++ b/net/sunrpc/xprtrdma/rpc_rdma.c
@@ -141,7 +141,7 @@ static bool rpcrdma_args_inline(struct rpcrdma_xprt *r_xprt,
 
 	if (xdr->page_len) {
 		remaining = xdr->page_len;
-		offset = xdr->page_base & ~PAGE_MASK;
+		offset = offset_in_page(xdr->page_base);
 		count = 0;
 		while (remaining) {
 			remaining -= min_t(unsigned int,
@@ -222,7 +222,7 @@ rpcrdma_convert_iovs(struct rpcrdma_xprt *r_xprt, struct xdr_buf *xdrbuf,
 
 	len = xdrbuf->page_len;
 	ppages = xdrbuf->pages + (xdrbuf->page_base >> PAGE_SHIFT);
-	page_base = xdrbuf->page_base & ~PAGE_MASK;
+	page_base = offset_in_page(xdrbuf->page_base);
 	p = 0;
 	while (len && n < RPCRDMA_MAX_SEGS) {
 		if (!ppages[p]) {
@@ -540,7 +540,7 @@ rpcrdma_prepare_msg_sges(struct rpcrdma_ia *ia, struct rpcrdma_req *req,
 			goto out;
 
 		page = virt_to_page(xdr->tail[0].iov_base);
-		page_base = (unsigned long)xdr->tail[0].iov_base & ~PAGE_MASK;
+		page_base = offset_in_page(xdr->tail[0].iov_base);
 
 		/* If the content in the page list is an odd length,
 		 * xdr_write_pages() has added a pad at the beginning
@@ -557,7 +557,7 @@ rpcrdma_prepare_msg_sges(struct rpcrdma_ia *ia, struct rpcrdma_req *req,
 	 */
 	if (xdr->page_len) {
 		ppages = xdr->pages + (xdr->page_base >> PAGE_SHIFT);
-		page_base = xdr->page_base & ~PAGE_MASK;
+		page_base = offset_in_page(xdr->page_base);
 		remaining = xdr->page_len;
 		while (remaining) {
 			sge_no++;
@@ -587,7 +587,7 @@ rpcrdma_prepare_msg_sges(struct rpcrdma_ia *ia, struct rpcrdma_req *req,
 	 */
 	if (xdr->tail[0].iov_len) {
 		page = virt_to_page(xdr->tail[0].iov_base);
-		page_base = (unsigned long)xdr->tail[0].iov_base & ~PAGE_MASK;
+		page_base = offset_in_page(xdr->tail[0].iov_base);
 		len = xdr->tail[0].iov_len;
 
 map_tail:
@@ -734,6 +734,9 @@ rpcrdma_marshal_req(struct rpc_rqst *rqst)
 		rpclen = 0;
 	}
 
+	req->rl_xid = rqst->rq_xid;
+	rpcrdma_insert_req(&r_xprt->rx_buf, req);
+
 	/* This implementation supports the following combinations
 	 * of chunk lists in one RPC-over-RDMA Call message:
 	 *
@@ -875,9 +878,9 @@ rpcrdma_inline_fixup(struct rpc_rqst *rqst, char *srcp, int copy_len, int pad)
 	srcp += curlen;
 	copy_len -= curlen;
 
-	page_base = rqst->rq_rcv_buf.page_base;
-	ppages = rqst->rq_rcv_buf.pages + (page_base >> PAGE_SHIFT);
-	page_base &= ~PAGE_MASK;
+	ppages = rqst->rq_rcv_buf.pages +
+		(rqst->rq_rcv_buf.page_base >> PAGE_SHIFT);
+	page_base = offset_in_page(rqst->rq_rcv_buf.page_base);
 	fixup_copy_count = 0;
 	if (copy_len && rqst->rq_rcv_buf.page_len) {
 		int pagelist_len;
@@ -928,6 +931,24 @@ rpcrdma_inline_fixup(struct rpc_rqst *rqst, char *srcp, int copy_len, int pad)
 	return fixup_copy_count;
 }
 
+/* Caller must guarantee @rep remains stable during this call.
+ */
+static void
+rpcrdma_mark_remote_invalidation(struct list_head *mws,
+				 struct rpcrdma_rep *rep)
+{
+	struct rpcrdma_mw *mw;
+
+	if (!(rep->rr_wc_flags & IB_WC_WITH_INVALIDATE))
+		return;
+
+	list_for_each_entry(mw, mws, mw_list)
+		if (mw->mw_handle == rep->rr_inv_rkey) {
+			mw->mw_flags = RPCRDMA_MW_F_RI;
+			break; /* only one invalidated MR per RPC */
+		}
+}
+
 #if defined(CONFIG_SUNRPC_BACKCHANNEL)
 /* By convention, backchannel calls arrive via rdma_msg type
  * messages, and never populate the chunk lists. This makes
@@ -969,14 +990,16 @@ rpcrdma_reply_handler(struct work_struct *work)
 {
 	struct rpcrdma_rep *rep =
 			container_of(work, struct rpcrdma_rep, rr_work);
+	struct rpcrdma_xprt *r_xprt = rep->rr_rxprt;
+	struct rpcrdma_buffer *buf = &r_xprt->rx_buf;
+	struct rpc_xprt *xprt = &r_xprt->rx_xprt;
 	struct rpcrdma_msg *headerp;
 	struct rpcrdma_req *req;
 	struct rpc_rqst *rqst;
-	struct rpcrdma_xprt *r_xprt = rep->rr_rxprt;
-	struct rpc_xprt *xprt = &r_xprt->rx_xprt;
 	__be32 *iptr;
 	int rdmalen, status, rmerr;
 	unsigned long cwnd;
+	struct list_head mws;
 
 	dprintk("RPC:       %s: incoming rep %p\n", __func__, rep);
 
@@ -994,27 +1017,45 @@ rpcrdma_reply_handler(struct work_struct *work)
 	/* Match incoming rpcrdma_rep to an rpcrdma_req to
 	 * get context for handling any incoming chunks.
 	 */
-	spin_lock_bh(&xprt->transport_lock);
-	rqst = xprt_lookup_rqst(xprt, headerp->rm_xid);
-	if (!rqst)
+	spin_lock(&buf->rb_lock);
+	req = rpcrdma_lookup_req_locked(&r_xprt->rx_buf,
+					headerp->rm_xid);
+	if (!req)
 		goto out_nomatch;
-
-	req = rpcr_to_rdmar(rqst);
 	if (req->rl_reply)
 		goto out_duplicate;
 
-	/* Sanity checking has passed. We are now committed
-	 * to complete this transaction.
+	list_replace_init(&req->rl_registered, &mws);
+	rpcrdma_mark_remote_invalidation(&mws, rep);
+
+	/* Avoid races with signals and duplicate replies
+	 * by marking this req as matched.
 	 */
-	list_del_init(&rqst->rq_list);
-	spin_unlock_bh(&xprt->transport_lock);
+	req->rl_reply = rep;
+	spin_unlock(&buf->rb_lock);
+
 	dprintk("RPC:       %s: reply %p completes request %p (xid 0x%08x)\n",
 		__func__, rep, req, be32_to_cpu(headerp->rm_xid));
 
-	/* from here on, the reply is no longer an orphan */
-	req->rl_reply = rep;
-	xprt->reestablish_timeout = 0;
+	/* Invalidate and unmap the data payloads before waking the
+	 * waiting application. This guarantees the memory regions
+	 * are properly fenced from the server before the application
+	 * accesses the data. It also ensures proper send flow control:
+	 * waking the next RPC waits until this RPC has relinquished
+	 * all its Send Queue entries.
+	 */
+	if (!list_empty(&mws))
+		r_xprt->rx_ia.ri_ops->ro_unmap_sync(r_xprt, &mws);
 
+	/* Perform XID lookup, reconstruction of the RPC reply, and
+	 * RPC completion while holding the transport lock to ensure
+	 * the rep, rqst, and rq_task pointers remain stable.
+	 */
+	spin_lock_bh(&xprt->transport_lock);
+	rqst = xprt_lookup_rqst(xprt, headerp->rm_xid);
+	if (!rqst)
+		goto out_norqst;
+	xprt->reestablish_timeout = 0;
 	if (headerp->rm_vers != rpcrdma_version)
 		goto out_badversion;
 
@@ -1024,12 +1065,9 @@ rpcrdma_reply_handler(struct work_struct *work)
 	case rdma_msg:
 		/* never expect read chunks */
 		/* never expect reply chunks (two ways to check) */
-		/* never expect write chunks without having offered RDMA */
 		if (headerp->rm_body.rm_chunks[0] != xdr_zero ||
 		    (headerp->rm_body.rm_chunks[1] == xdr_zero &&
-		     headerp->rm_body.rm_chunks[2] != xdr_zero) ||
-		    (headerp->rm_body.rm_chunks[1] != xdr_zero &&
-		     list_empty(&req->rl_registered)))
+		     headerp->rm_body.rm_chunks[2] != xdr_zero))
 			goto badheader;
 		if (headerp->rm_body.rm_chunks[1] != xdr_zero) {
 			/* count any expected write chunks in read reply */
@@ -1066,8 +1104,7 @@ rpcrdma_reply_handler(struct work_struct *work)
 		/* never expect read or write chunks, always reply chunks */
 		if (headerp->rm_body.rm_chunks[0] != xdr_zero ||
 		    headerp->rm_body.rm_chunks[1] != xdr_zero ||
-		    headerp->rm_body.rm_chunks[2] != xdr_one ||
-		    list_empty(&req->rl_registered))
+		    headerp->rm_body.rm_chunks[2] != xdr_one)
 			goto badheader;
 		iptr = (__be32 *)((unsigned char *)headerp +
 							RPCRDMA_HDRLEN_MIN);
@@ -1093,17 +1130,6 @@ badheader:
 	}
 
 out:
-	/* Invalidate and flush the data payloads before waking the
-	 * waiting application. This guarantees the memory region is
-	 * properly fenced from the server before the application
-	 * accesses the data. It also ensures proper send flow
-	 * control: waking the next RPC waits until this RPC has
-	 * relinquished all its Send Queue entries.
-	 */
-	if (!list_empty(&req->rl_registered))
-		r_xprt->rx_ia.ri_ops->ro_unmap_sync(r_xprt, req);
-
-	spin_lock_bh(&xprt->transport_lock);
 	cwnd = xprt->cwnd;
 	xprt->cwnd = atomic_read(&r_xprt->rx_buf.rb_credits) << RPC_CWNDSHIFT;
 	if (xprt->cwnd > cwnd)
@@ -1112,7 +1138,7 @@ out:
 	xprt_complete_rqst(rqst->rq_task, status);
 	spin_unlock_bh(&xprt->transport_lock);
 	dprintk("RPC:       %s: xprt_complete_rqst(0x%p, 0x%p, %d)\n",
-			__func__, xprt, rqst, status);
+		__func__, xprt, rqst, status);
 	return;
 
 out_badstatus:
@@ -1161,26 +1187,37 @@ out_rdmaerr:
 	r_xprt->rx_stats.bad_reply_count++;
 	goto out;
 
-/* If no pending RPC transaction was matched, post a replacement
- * receive buffer before returning.
+/* The req was still available, but by the time the transport_lock
+ * was acquired, the rqst and task had been released. Thus the RPC
+ * has already been terminated.
  */
+out_norqst:
+	spin_unlock_bh(&xprt->transport_lock);
+	rpcrdma_buffer_put(req);
+	dprintk("RPC:       %s: race, no rqst left for req %p\n",
+		__func__, req);
+	return;
+
 out_shortreply:
 	dprintk("RPC:       %s: short/invalid reply\n", __func__);
 	goto repost;
 
 out_nomatch:
-	spin_unlock_bh(&xprt->transport_lock);
+	spin_unlock(&buf->rb_lock);
 	dprintk("RPC:       %s: no match for incoming xid 0x%08x len %d\n",
 		__func__, be32_to_cpu(headerp->rm_xid),
 		rep->rr_len);
 	goto repost;
 
 out_duplicate:
-	spin_unlock_bh(&xprt->transport_lock);
+	spin_unlock(&buf->rb_lock);
 	dprintk("RPC:       %s: "
 		"duplicate reply %p to RPC request %p: xid 0x%08x\n",
 		__func__, rep, req, be32_to_cpu(headerp->rm_xid));
 
+/* If no pending RPC transaction was matched, post a replacement
+ * receive buffer before returning.
+ */
 repost:
 	r_xprt->rx_stats.bad_reply_count++;
 	if (rpcrdma_ep_post_recv(&r_xprt->rx_ia, rep))
diff --git a/net/sunrpc/xprtrdma/svc_rdma_marshal.c b/net/sunrpc/xprtrdma/svc_rdma_marshal.c
deleted file mode 100644
index bdcf7d85a3dc..000000000000
--- a/net/sunrpc/xprtrdma/svc_rdma_marshal.c
+++ /dev/null
@@ -1,168 +0,0 @@
-/*
- * Copyright (c) 2016 Oracle. All rights reserved.
- * Copyright (c) 2005-2006 Network Appliance, Inc. All rights reserved.
- *
- * This software is available to you under a choice of one of two
- * licenses.  You may choose to be licensed under the terms of the GNU
- * General Public License (GPL) Version 2, available from the file
- * COPYING in the main directory of this source tree, or the BSD-type
- * license below:
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- *      Redistributions of source code must retain the above copyright
- *      notice, this list of conditions and the following disclaimer.
- *
- *      Redistributions in binary form must reproduce the above
- *      copyright notice, this list of conditions and the following
- *      disclaimer in the documentation and/or other materials provided
- *      with the distribution.
- *
- *      Neither the name of the Network Appliance, Inc. nor the names of
- *      its contributors may be used to endorse or promote products
- *      derived from this software without specific prior written
- *      permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
- * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
- * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
- * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
- * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
- * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
- * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- *
- * Author: Tom Tucker <tom@opengridcomputing.com>
- */
-
-#include <linux/sunrpc/xdr.h>
-#include <linux/sunrpc/debug.h>
-#include <asm/unaligned.h>
-#include <linux/sunrpc/rpc_rdma.h>
-#include <linux/sunrpc/svc_rdma.h>
-
-#define RPCDBG_FACILITY	RPCDBG_SVCXPRT
-
-static __be32 *xdr_check_read_list(__be32 *p, __be32 *end)
-{
-	__be32 *next;
-
-	while (*p++ != xdr_zero) {
-		next = p + rpcrdma_readchunk_maxsz - 1;
-		if (next > end)
-			return NULL;
-		p = next;
-	}
-	return p;
-}
-
-static __be32 *xdr_check_write_list(__be32 *p, __be32 *end)
-{
-	__be32 *next;
-
-	while (*p++ != xdr_zero) {
-		next = p + 1 + be32_to_cpup(p) * rpcrdma_segment_maxsz;
-		if (next > end)
-			return NULL;
-		p = next;
-	}
-	return p;
-}
-
-static __be32 *xdr_check_reply_chunk(__be32 *p, __be32 *end)
-{
-	__be32 *next;
-
-	if (*p++ != xdr_zero) {
-		next = p + 1 + be32_to_cpup(p) * rpcrdma_segment_maxsz;
-		if (next > end)
-			return NULL;
-		p = next;
-	}
-	return p;
-}
-
-/**
- * svc_rdma_xdr_decode_req - Parse incoming RPC-over-RDMA header
- * @rq_arg: Receive buffer
- *
- * On entry, xdr->head[0].iov_base points to first byte in the
- * RPC-over-RDMA header.
- *
- * On successful exit, head[0] points to first byte past the
- * RPC-over-RDMA header. For RDMA_MSG, this is the RPC message.
- * The length of the RPC-over-RDMA header is returned.
- */
-int svc_rdma_xdr_decode_req(struct xdr_buf *rq_arg)
-{
-	__be32 *p, *end, *rdma_argp;
-	unsigned int hdr_len;
-
-	/* Verify that there's enough bytes for header + something */
-	if (rq_arg->len <= RPCRDMA_HDRLEN_ERR)
-		goto out_short;
-
-	rdma_argp = rq_arg->head[0].iov_base;
-	if (*(rdma_argp + 1) != rpcrdma_version)
-		goto out_version;
-
-	switch (*(rdma_argp + 3)) {
-	case rdma_msg:
-	case rdma_nomsg:
-		break;
-
-	case rdma_done:
-		goto out_drop;
-
-	case rdma_error:
-		goto out_drop;
-
-	default:
-		goto out_proc;
-	}
-
-	end = (__be32 *)((unsigned long)rdma_argp + rq_arg->len);
-	p = xdr_check_read_list(rdma_argp + 4, end);
-	if (!p)
-		goto out_inval;
-	p = xdr_check_write_list(p, end);
-	if (!p)
-		goto out_inval;
-	p = xdr_check_reply_chunk(p, end);
-	if (!p)
-		goto out_inval;
-	if (p > end)
-		goto out_inval;
-
-	rq_arg->head[0].iov_base = p;
-	hdr_len = (unsigned long)p - (unsigned long)rdma_argp;
-	rq_arg->head[0].iov_len -= hdr_len;
-	return hdr_len;
-
-out_short:
-	dprintk("svcrdma: header too short = %d\n", rq_arg->len);
-	return -EINVAL;
-
-out_version:
-	dprintk("svcrdma: bad xprt version: %u\n",
-		be32_to_cpup(rdma_argp + 1));
-	return -EPROTONOSUPPORT;
-
-out_drop:
-	dprintk("svcrdma: dropping RDMA_DONE/ERROR message\n");
-	return 0;
-
-out_proc:
-	dprintk("svcrdma: bad rdma procedure (%u)\n",
-		be32_to_cpup(rdma_argp + 3));
-	return -EINVAL;
-
-out_inval:
-	dprintk("svcrdma: failed to parse transport header\n");
-	return -EINVAL;
-}
diff --git a/net/sunrpc/xprtrdma/svc_rdma_recvfrom.c b/net/sunrpc/xprtrdma/svc_rdma_recvfrom.c
index 27a99bf5b1a6..ad4bd62eebf1 100644
--- a/net/sunrpc/xprtrdma/svc_rdma_recvfrom.c
+++ b/net/sunrpc/xprtrdma/svc_rdma_recvfrom.c
@@ -1,4 +1,5 @@
 /*
+ * Copyright (c) 2016, 2017 Oracle. All rights reserved.
  * Copyright (c) 2014 Open Grid Computing, Inc. All rights reserved.
  * Copyright (c) 2005-2006 Network Appliance, Inc. All rights reserved.
  *
@@ -40,12 +41,66 @@
  * Author: Tom Tucker <tom@opengridcomputing.com>
  */
 
-#include <linux/sunrpc/debug.h>
-#include <linux/sunrpc/rpc_rdma.h>
-#include <linux/spinlock.h>
+/* Operation
+ *
+ * The main entry point is svc_rdma_recvfrom. This is called from
+ * svc_recv when the transport indicates there is incoming data to
+ * be read. "Data Ready" is signaled when an RDMA Receive completes,
+ * or when a set of RDMA Reads complete.
+ *
+ * An svc_rqst is passed in. This structure contains an array of
+ * free pages (rq_pages) that will contain the incoming RPC message.
+ *
+ * Short messages are moved directly into svc_rqst::rq_arg, and
+ * the RPC Call is ready to be processed by the Upper Layer.
+ * svc_rdma_recvfrom returns the length of the RPC Call message,
+ * completing the reception of the RPC Call.
+ *
+ * However, when an incoming message has Read chunks,
+ * svc_rdma_recvfrom must post RDMA Reads to pull the RPC Call's
+ * data payload from the client. svc_rdma_recvfrom sets up the
+ * RDMA Reads using pages in svc_rqst::rq_pages, which are
+ * transferred to an svc_rdma_op_ctxt for the duration of the
+ * I/O. svc_rdma_recvfrom then returns zero, since the RPC message
+ * is still not yet ready.
+ *
+ * When the Read chunk payloads have become available on the
+ * server, "Data Ready" is raised again, and svc_recv calls
+ * svc_rdma_recvfrom again. This second call may use a different
+ * svc_rqst than the first one, thus any information that needs
+ * to be preserved across these two calls is kept in an
+ * svc_rdma_op_ctxt.
+ *
+ * The second call to svc_rdma_recvfrom performs final assembly
+ * of the RPC Call message, using the RDMA Read sink pages kept in
+ * the svc_rdma_op_ctxt. The xdr_buf is copied from the
+ * svc_rdma_op_ctxt to the second svc_rqst. The second call returns
+ * the length of the completed RPC Call message.
+ *
+ * Page Management
+ *
+ * Pages under I/O must be transferred from the first svc_rqst to an
+ * svc_rdma_op_ctxt before the first svc_rdma_recvfrom call returns.
+ *
+ * The first svc_rqst supplies pages for RDMA Reads. These are moved
+ * from rqstp::rq_pages into ctxt::pages. The consumed elements of
+ * the rq_pages array are set to NULL and refilled with the first
+ * svc_rdma_recvfrom call returns.
+ *
+ * During the second svc_rdma_recvfrom call, RDMA Read sink pages
+ * are transferred from the svc_rdma_op_ctxt to the second svc_rqst
+ * (see rdma_read_complete() below).
+ */
+
 #include <asm/unaligned.h>
 #include <rdma/ib_verbs.h>
 #include <rdma/rdma_cm.h>
+
+#include <linux/spinlock.h>
+
+#include <linux/sunrpc/xdr.h>
+#include <linux/sunrpc/debug.h>
+#include <linux/sunrpc/rpc_rdma.h>
 #include <linux/sunrpc/svc_rdma.h>
 
 #define RPCDBG_FACILITY	RPCDBG_SVCXPRT
@@ -59,7 +114,6 @@ static void rdma_build_arg_xdr(struct svc_rqst *rqstp,
 			       struct svc_rdma_op_ctxt *ctxt,
 			       u32 byte_count)
 {
-	struct rpcrdma_msg *rmsgp;
 	struct page *page;
 	u32 bc;
 	int sge_no;
@@ -83,20 +137,12 @@ static void rdma_build_arg_xdr(struct svc_rqst *rqstp,
 	rqstp->rq_arg.page_len = bc;
 	rqstp->rq_arg.page_base = 0;
 
-	/* RDMA_NOMSG: RDMA READ data should land just after RDMA RECV data */
-	rmsgp = (struct rpcrdma_msg *)rqstp->rq_arg.head[0].iov_base;
-	if (rmsgp->rm_type == rdma_nomsg)
-		rqstp->rq_arg.pages = &rqstp->rq_pages[0];
-	else
-		rqstp->rq_arg.pages = &rqstp->rq_pages[1];
-
 	sge_no = 1;
 	while (bc && sge_no < ctxt->count) {
 		page = ctxt->pages[sge_no];
 		put_page(rqstp->rq_pages[sge_no]);
 		rqstp->rq_pages[sge_no] = page;
 		bc -= min_t(u32, bc, ctxt->sge[sge_no].length);
-		rqstp->rq_arg.buflen += ctxt->sge[sge_no].length;
 		sge_no++;
 	}
 	rqstp->rq_respages = &rqstp->rq_pages[sge_no];
@@ -115,406 +161,208 @@ static void rdma_build_arg_xdr(struct svc_rqst *rqstp,
 	rqstp->rq_arg.tail[0].iov_len = 0;
 }
 
-/* Issue an RDMA_READ using the local lkey to map the data sink */
-int rdma_read_chunk_lcl(struct svcxprt_rdma *xprt,
-			struct svc_rqst *rqstp,
-			struct svc_rdma_op_ctxt *head,
-			int *page_no,
-			u32 *page_offset,
-			u32 rs_handle,
-			u32 rs_length,
-			u64 rs_offset,
-			bool last)
-{
-	struct ib_rdma_wr read_wr;
-	int pages_needed = PAGE_ALIGN(*page_offset + rs_length) >> PAGE_SHIFT;
-	struct svc_rdma_op_ctxt *ctxt = svc_rdma_get_context(xprt);
-	int ret, read, pno;
-	u32 pg_off = *page_offset;
-	u32 pg_no = *page_no;
-
-	ctxt->direction = DMA_FROM_DEVICE;
-	ctxt->read_hdr = head;
-	pages_needed = min_t(int, pages_needed, xprt->sc_max_sge_rd);
-	read = min_t(int, (pages_needed << PAGE_SHIFT) - *page_offset,
-		     rs_length);
-
-	for (pno = 0; pno < pages_needed; pno++) {
-		int len = min_t(int, rs_length, PAGE_SIZE - pg_off);
-
-		head->arg.pages[pg_no] = rqstp->rq_arg.pages[pg_no];
-		head->arg.page_len += len;
-
-		head->arg.len += len;
-		if (!pg_off)
-			head->count++;
-		rqstp->rq_respages = &rqstp->rq_arg.pages[pg_no+1];
-		rqstp->rq_next_page = rqstp->rq_respages + 1;
-		ctxt->sge[pno].addr =
-			ib_dma_map_page(xprt->sc_cm_id->device,
-					head->arg.pages[pg_no], pg_off,
-					PAGE_SIZE - pg_off,
-					DMA_FROM_DEVICE);
-		ret = ib_dma_mapping_error(xprt->sc_cm_id->device,
-					   ctxt->sge[pno].addr);
-		if (ret)
-			goto err;
-		svc_rdma_count_mappings(xprt, ctxt);
-
-		ctxt->sge[pno].lkey = xprt->sc_pd->local_dma_lkey;
-		ctxt->sge[pno].length = len;
-		ctxt->count++;
-
-		/* adjust offset and wrap to next page if needed */
-		pg_off += len;
-		if (pg_off == PAGE_SIZE) {
-			pg_off = 0;
-			pg_no++;
-		}
-		rs_length -= len;
-	}
-
-	if (last && rs_length == 0)
-		set_bit(RDMACTXT_F_LAST_CTXT, &ctxt->flags);
-	else
-		clear_bit(RDMACTXT_F_LAST_CTXT, &ctxt->flags);
-
-	memset(&read_wr, 0, sizeof(read_wr));
-	ctxt->cqe.done = svc_rdma_wc_read;
-	read_wr.wr.wr_cqe = &ctxt->cqe;
-	read_wr.wr.opcode = IB_WR_RDMA_READ;
-	read_wr.wr.send_flags = IB_SEND_SIGNALED;
-	read_wr.rkey = rs_handle;
-	read_wr.remote_addr = rs_offset;
-	read_wr.wr.sg_list = ctxt->sge;
-	read_wr.wr.num_sge = pages_needed;
-
-	ret = svc_rdma_send(xprt, &read_wr.wr);
-	if (ret) {
-		pr_err("svcrdma: Error %d posting RDMA_READ\n", ret);
-		set_bit(XPT_CLOSE, &xprt->sc_xprt.xpt_flags);
-		goto err;
-	}
+/* This accommodates the largest possible Write chunk,
+ * in one segment.
+ */
+#define MAX_BYTES_WRITE_SEG	((u32)(RPCSVC_MAXPAGES << PAGE_SHIFT))
 
-	/* return current location in page array */
-	*page_no = pg_no;
-	*page_offset = pg_off;
-	ret = read;
-	atomic_inc(&rdma_stat_read);
-	return ret;
- err:
-	svc_rdma_unmap_dma(ctxt);
-	svc_rdma_put_context(ctxt, 0);
-	return ret;
-}
+/* This accommodates the largest possible Position-Zero
+ * Read chunk or Reply chunk, in one segment.
+ */
+#define MAX_BYTES_SPECIAL_SEG	((u32)((RPCSVC_MAXPAGES + 2) << PAGE_SHIFT))
 
-/* Issue an RDMA_READ using an FRMR to map the data sink */
-int rdma_read_chunk_frmr(struct svcxprt_rdma *xprt,
-			 struct svc_rqst *rqstp,
-			 struct svc_rdma_op_ctxt *head,
-			 int *page_no,
-			 u32 *page_offset,
-			 u32 rs_handle,
-			 u32 rs_length,
-			 u64 rs_offset,
-			 bool last)
+/* Sanity check the Read list.
+ *
+ * Implementation limits:
+ * - This implementation supports only one Read chunk.
+ *
+ * Sanity checks:
+ * - Read list does not overflow buffer.
+ * - Segment size limited by largest NFS data payload.
+ *
+ * The segment count is limited to how many segments can
+ * fit in the transport header without overflowing the
+ * buffer. That's about 40 Read segments for a 1KB inline
+ * threshold.
+ *
+ * Returns pointer to the following Write list.
+ */
+static __be32 *xdr_check_read_list(__be32 *p, const __be32 *end)
 {
-	struct ib_rdma_wr read_wr;
-	struct ib_send_wr inv_wr;
-	struct ib_reg_wr reg_wr;
-	u8 key;
-	int nents = PAGE_ALIGN(*page_offset + rs_length) >> PAGE_SHIFT;
-	struct svc_rdma_op_ctxt *ctxt = svc_rdma_get_context(xprt);
-	struct svc_rdma_fastreg_mr *frmr = svc_rdma_get_frmr(xprt);
-	int ret, read, pno, dma_nents, n;
-	u32 pg_off = *page_offset;
-	u32 pg_no = *page_no;
-
-	if (IS_ERR(frmr))
-		return -ENOMEM;
-
-	ctxt->direction = DMA_FROM_DEVICE;
-	ctxt->frmr = frmr;
-	nents = min_t(unsigned int, nents, xprt->sc_frmr_pg_list_len);
-	read = min_t(int, (nents << PAGE_SHIFT) - *page_offset, rs_length);
-
-	frmr->direction = DMA_FROM_DEVICE;
-	frmr->access_flags = (IB_ACCESS_LOCAL_WRITE|IB_ACCESS_REMOTE_WRITE);
-	frmr->sg_nents = nents;
-
-	for (pno = 0; pno < nents; pno++) {
-		int len = min_t(int, rs_length, PAGE_SIZE - pg_off);
-
-		head->arg.pages[pg_no] = rqstp->rq_arg.pages[pg_no];
-		head->arg.page_len += len;
-		head->arg.len += len;
-		if (!pg_off)
-			head->count++;
-
-		sg_set_page(&frmr->sg[pno], rqstp->rq_arg.pages[pg_no],
-			    len, pg_off);
-
-		rqstp->rq_respages = &rqstp->rq_arg.pages[pg_no+1];
-		rqstp->rq_next_page = rqstp->rq_respages + 1;
-
-		/* adjust offset and wrap to next page if needed */
-		pg_off += len;
-		if (pg_off == PAGE_SIZE) {
-			pg_off = 0;
-			pg_no++;
+	u32 position;
+	bool first;
+
+	first = true;
+	while (*p++ != xdr_zero) {
+		if (first) {
+			position = be32_to_cpup(p++);
+			first = false;
+		} else if (be32_to_cpup(p++) != position) {
+			return NULL;
 		}
-		rs_length -= len;
-	}
+		p++;	/* handle */
+		if (be32_to_cpup(p++) > MAX_BYTES_SPECIAL_SEG)
+			return NULL;
+		p += 2;	/* offset */
 
-	if (last && rs_length == 0)
-		set_bit(RDMACTXT_F_LAST_CTXT, &ctxt->flags);
-	else
-		clear_bit(RDMACTXT_F_LAST_CTXT, &ctxt->flags);
-
-	dma_nents = ib_dma_map_sg(xprt->sc_cm_id->device,
-				  frmr->sg, frmr->sg_nents,
-				  frmr->direction);
-	if (!dma_nents) {
-		pr_err("svcrdma: failed to dma map sg %p\n",
-		       frmr->sg);
-		return -ENOMEM;
+		if (p > end)
+			return NULL;
 	}
+	return p;
+}
 
-	n = ib_map_mr_sg(frmr->mr, frmr->sg, frmr->sg_nents, NULL, PAGE_SIZE);
-	if (unlikely(n != frmr->sg_nents)) {
-		pr_err("svcrdma: failed to map mr %p (%d/%d elements)\n",
-		       frmr->mr, n, frmr->sg_nents);
-		return n < 0 ? n : -EINVAL;
-	}
+/* The segment count is limited to how many segments can
+ * fit in the transport header without overflowing the
+ * buffer. That's about 60 Write segments for a 1KB inline
+ * threshold.
+ */
+static __be32 *xdr_check_write_chunk(__be32 *p, const __be32 *end,
+				     u32 maxlen)
+{
+	u32 i, segcount;
 
-	/* Bump the key */
-	key = (u8)(frmr->mr->lkey & 0x000000FF);
-	ib_update_fast_reg_key(frmr->mr, ++key);
-
-	ctxt->sge[0].addr = frmr->mr->iova;
-	ctxt->sge[0].lkey = frmr->mr->lkey;
-	ctxt->sge[0].length = frmr->mr->length;
-	ctxt->count = 1;
-	ctxt->read_hdr = head;
-
-	/* Prepare REG WR */
-	ctxt->reg_cqe.done = svc_rdma_wc_reg;
-	reg_wr.wr.wr_cqe = &ctxt->reg_cqe;
-	reg_wr.wr.opcode = IB_WR_REG_MR;
-	reg_wr.wr.send_flags = IB_SEND_SIGNALED;
-	reg_wr.wr.num_sge = 0;
-	reg_wr.mr = frmr->mr;
-	reg_wr.key = frmr->mr->lkey;
-	reg_wr.access = frmr->access_flags;
-	reg_wr.wr.next = &read_wr.wr;
-
-	/* Prepare RDMA_READ */
-	memset(&read_wr, 0, sizeof(read_wr));
-	ctxt->cqe.done = svc_rdma_wc_read;
-	read_wr.wr.wr_cqe = &ctxt->cqe;
-	read_wr.wr.send_flags = IB_SEND_SIGNALED;
-	read_wr.rkey = rs_handle;
-	read_wr.remote_addr = rs_offset;
-	read_wr.wr.sg_list = ctxt->sge;
-	read_wr.wr.num_sge = 1;
-	if (xprt->sc_dev_caps & SVCRDMA_DEVCAP_READ_W_INV) {
-		read_wr.wr.opcode = IB_WR_RDMA_READ_WITH_INV;
-		read_wr.wr.ex.invalidate_rkey = ctxt->frmr->mr->lkey;
-	} else {
-		read_wr.wr.opcode = IB_WR_RDMA_READ;
-		read_wr.wr.next = &inv_wr;
-		/* Prepare invalidate */
-		memset(&inv_wr, 0, sizeof(inv_wr));
-		ctxt->inv_cqe.done = svc_rdma_wc_inv;
-		inv_wr.wr_cqe = &ctxt->inv_cqe;
-		inv_wr.opcode = IB_WR_LOCAL_INV;
-		inv_wr.send_flags = IB_SEND_SIGNALED | IB_SEND_FENCE;
-		inv_wr.ex.invalidate_rkey = frmr->mr->lkey;
-	}
+	segcount = be32_to_cpup(p++);
+	for (i = 0; i < segcount; i++) {
+		p++;	/* handle */
+		if (be32_to_cpup(p++) > maxlen)
+			return NULL;
+		p += 2;	/* offset */
 
-	/* Post the chain */
-	ret = svc_rdma_send(xprt, &reg_wr.wr);
-	if (ret) {
-		pr_err("svcrdma: Error %d posting RDMA_READ\n", ret);
-		set_bit(XPT_CLOSE, &xprt->sc_xprt.xpt_flags);
-		goto err;
+		if (p > end)
+			return NULL;
 	}
 
-	/* return current location in page array */
-	*page_no = pg_no;
-	*page_offset = pg_off;
-	ret = read;
-	atomic_inc(&rdma_stat_read);
-	return ret;
- err:
-	svc_rdma_put_context(ctxt, 0);
-	svc_rdma_put_frmr(xprt, frmr);
-	return ret;
-}
-
-static unsigned int
-rdma_rcl_chunk_count(struct rpcrdma_read_chunk *ch)
-{
-	unsigned int count;
-
-	for (count = 0; ch->rc_discrim != xdr_zero; ch++)
-		count++;
-	return count;
+	return p;
 }
 
-/* If there was additional inline content, append it to the end of arg.pages.
- * Tail copy has to be done after the reader function has determined how many
- * pages are needed for RDMA READ.
+/* Sanity check the Write list.
+ *
+ * Implementation limits:
+ * - This implementation supports only one Write chunk.
+ *
+ * Sanity checks:
+ * - Write list does not overflow buffer.
+ * - Segment size limited by largest NFS data payload.
+ *
+ * Returns pointer to the following Reply chunk.
  */
-static int
-rdma_copy_tail(struct svc_rqst *rqstp, struct svc_rdma_op_ctxt *head,
-	       u32 position, u32 byte_count, u32 page_offset, int page_no)
+static __be32 *xdr_check_write_list(__be32 *p, const __be32 *end)
 {
-	char *srcp, *destp;
-
-	srcp = head->arg.head[0].iov_base + position;
-	byte_count = head->arg.head[0].iov_len - position;
-	if (byte_count > PAGE_SIZE) {
-		dprintk("svcrdma: large tail unsupported\n");
-		return 0;
-	}
-
-	/* Fit as much of the tail on the current page as possible */
-	if (page_offset != PAGE_SIZE) {
-		destp = page_address(rqstp->rq_arg.pages[page_no]);
-		destp += page_offset;
-		while (byte_count--) {
-			*destp++ = *srcp++;
-			page_offset++;
-			if (page_offset == PAGE_SIZE && byte_count)
-				goto more;
-		}
-		goto done;
+	u32 chcount;
+
+	chcount = 0;
+	while (*p++ != xdr_zero) {
+		p = xdr_check_write_chunk(p, end, MAX_BYTES_WRITE_SEG);
+		if (!p)
+			return NULL;
+		if (chcount++ > 1)
+			return NULL;
 	}
-
-more:
-	/* Fit the rest on the next page */
-	page_no++;
-	destp = page_address(rqstp->rq_arg.pages[page_no]);
-	while (byte_count--)
-		*destp++ = *srcp++;
-
-	rqstp->rq_respages = &rqstp->rq_arg.pages[page_no+1];
-	rqstp->rq_next_page = rqstp->rq_respages + 1;
-
-done:
-	byte_count = head->arg.head[0].iov_len - position;
-	head->arg.page_len += byte_count;
-	head->arg.len += byte_count;
-	head->arg.buflen += byte_count;
-	return 1;
+	return p;
 }
 
-/* Returns the address of the first read chunk or <nul> if no read chunk
- * is present
+/* Sanity check the Reply chunk.
+ *
+ * Sanity checks:
+ * - Reply chunk does not overflow buffer.
+ * - Segment size limited by largest NFS data payload.
+ *
+ * Returns pointer to the following RPC header.
  */
-static struct rpcrdma_read_chunk *
-svc_rdma_get_read_chunk(struct rpcrdma_msg *rmsgp)
+static __be32 *xdr_check_reply_chunk(__be32 *p, const __be32 *end)
 {
-	struct rpcrdma_read_chunk *ch =
-		(struct rpcrdma_read_chunk *)&rmsgp->rm_body.rm_chunks[0];
-
-	if (ch->rc_discrim == xdr_zero)
-		return NULL;
-	return ch;
+	if (*p++ != xdr_zero) {
+		p = xdr_check_write_chunk(p, end, MAX_BYTES_SPECIAL_SEG);
+		if (!p)
+			return NULL;
+	}
+	return p;
 }
 
-static int rdma_read_chunks(struct svcxprt_rdma *xprt,
-			    struct rpcrdma_msg *rmsgp,
-			    struct svc_rqst *rqstp,
-			    struct svc_rdma_op_ctxt *head)
+/* On entry, xdr->head[0].iov_base points to first byte in the
+ * RPC-over-RDMA header.
+ *
+ * On successful exit, head[0] points to first byte past the
+ * RPC-over-RDMA header. For RDMA_MSG, this is the RPC message.
+ * The length of the RPC-over-RDMA header is returned.
+ *
+ * Assumptions:
+ * - The transport header is entirely contained in the head iovec.
+ */
+static int svc_rdma_xdr_decode_req(struct xdr_buf *rq_arg)
 {
-	int page_no, ret;
-	struct rpcrdma_read_chunk *ch;
-	u32 handle, page_offset, byte_count;
-	u32 position;
-	u64 rs_offset;
-	bool last;
-
-	/* If no read list is present, return 0 */
-	ch = svc_rdma_get_read_chunk(rmsgp);
-	if (!ch)
-		return 0;
+	__be32 *p, *end, *rdma_argp;
+	unsigned int hdr_len;
+	char *proc;
+
+	/* Verify that there's enough bytes for header + something */
+	if (rq_arg->len <= RPCRDMA_HDRLEN_ERR)
+		goto out_short;
+
+	rdma_argp = rq_arg->head[0].iov_base;
+	if (*(rdma_argp + 1) != rpcrdma_version)
+		goto out_version;
+
+	switch (*(rdma_argp + 3)) {
+	case rdma_msg:
+		proc = "RDMA_MSG";
+		break;
+	case rdma_nomsg:
+		proc = "RDMA_NOMSG";
+		break;
+
+	case rdma_done:
+		goto out_drop;
 
-	if (rdma_rcl_chunk_count(ch) > RPCSVC_MAXPAGES)
-		return -EINVAL;
-
-	/* The request is completed when the RDMA_READs complete. The
-	 * head context keeps all the pages that comprise the
-	 * request.
-	 */
-	head->arg.head[0] = rqstp->rq_arg.head[0];
-	head->arg.tail[0] = rqstp->rq_arg.tail[0];
-	head->hdr_count = head->count;
-	head->arg.page_base = 0;
-	head->arg.page_len = 0;
-	head->arg.len = rqstp->rq_arg.len;
-	head->arg.buflen = rqstp->rq_arg.buflen;
-
-	/* RDMA_NOMSG: RDMA READ data should land just after RDMA RECV data */
-	position = be32_to_cpu(ch->rc_position);
-	if (position == 0) {
-		head->arg.pages = &head->pages[0];
-		page_offset = head->byte_len;
-	} else {
-		head->arg.pages = &head->pages[head->count];
-		page_offset = 0;
-	}
+	case rdma_error:
+		goto out_drop;
 
-	ret = 0;
-	page_no = 0;
-	for (; ch->rc_discrim != xdr_zero; ch++) {
-		if (be32_to_cpu(ch->rc_position) != position)
-			goto err;
-
-		handle = be32_to_cpu(ch->rc_target.rs_handle),
-		byte_count = be32_to_cpu(ch->rc_target.rs_length);
-		xdr_decode_hyper((__be32 *)&ch->rc_target.rs_offset,
-				 &rs_offset);
-
-		while (byte_count > 0) {
-			last = (ch + 1)->rc_discrim == xdr_zero;
-			ret = xprt->sc_reader(xprt, rqstp, head,
-					      &page_no, &page_offset,
-					      handle, byte_count,
-					      rs_offset, last);
-			if (ret < 0)
-				goto err;
-			byte_count -= ret;
-			rs_offset += ret;
-			head->arg.buflen += ret;
-		}
+	default:
+		goto out_proc;
 	}
 
-	/* Read list may need XDR round-up (see RFC 5666, s. 3.7) */
-	if (page_offset & 3) {
-		u32 pad = 4 - (page_offset & 3);
-
-		head->arg.tail[0].iov_len += pad;
-		head->arg.len += pad;
-		head->arg.buflen += pad;
-		page_offset += pad;
-	}
+	end = (__be32 *)((unsigned long)rdma_argp + rq_arg->len);
+	p = xdr_check_read_list(rdma_argp + 4, end);
+	if (!p)
+		goto out_inval;
+	p = xdr_check_write_list(p, end);
+	if (!p)
+		goto out_inval;
+	p = xdr_check_reply_chunk(p, end);
+	if (!p)
+		goto out_inval;
+	if (p > end)
+		goto out_inval;
+
+	rq_arg->head[0].iov_base = p;
+	hdr_len = (unsigned long)p - (unsigned long)rdma_argp;
+	rq_arg->head[0].iov_len -= hdr_len;
+	rq_arg->len -= hdr_len;
+	dprintk("svcrdma: received %s request for XID 0x%08x, hdr_len=%u\n",
+		proc, be32_to_cpup(rdma_argp), hdr_len);
+	return hdr_len;
+
+out_short:
+	dprintk("svcrdma: header too short = %d\n", rq_arg->len);
+	return -EINVAL;
+
+out_version:
+	dprintk("svcrdma: bad xprt version: %u\n",
+		be32_to_cpup(rdma_argp + 1));
+	return -EPROTONOSUPPORT;
 
-	ret = 1;
-	if (position && position < head->arg.head[0].iov_len)
-		ret = rdma_copy_tail(rqstp, head, position,
-				     byte_count, page_offset, page_no);
-	head->arg.head[0].iov_len = position;
-	head->position = position;
+out_drop:
+	dprintk("svcrdma: dropping RDMA_DONE/ERROR message\n");
+	return 0;
 
- err:
-	/* Detach arg pages. svc_recv will replenish them */
-	for (page_no = 0;
-	     &rqstp->rq_pages[page_no] < rqstp->rq_respages; page_no++)
-		rqstp->rq_pages[page_no] = NULL;
+out_proc:
+	dprintk("svcrdma: bad rdma procedure (%u)\n",
+		be32_to_cpup(rdma_argp + 3));
+	return -EINVAL;
 
-	return ret;
+out_inval:
+	dprintk("svcrdma: failed to parse transport header\n");
+	return -EINVAL;
 }
 
 static void rdma_read_complete(struct svc_rqst *rqstp,
@@ -528,24 +376,9 @@ static void rdma_read_complete(struct svc_rqst *rqstp,
 		rqstp->rq_pages[page_no] = head->pages[page_no];
 	}
 
-	/* Adjustments made for RDMA_NOMSG type requests */
-	if (head->position == 0) {
-		if (head->arg.len <= head->sge[0].length) {
-			head->arg.head[0].iov_len = head->arg.len -
-							head->byte_len;
-			head->arg.page_len = 0;
-		} else {
-			head->arg.head[0].iov_len = head->sge[0].length -
-								head->byte_len;
-			head->arg.page_len = head->arg.len -
-						head->sge[0].length;
-		}
-	}
-
 	/* Point rq_arg.pages past header */
 	rqstp->rq_arg.pages = &rqstp->rq_pages[head->hdr_count];
 	rqstp->rq_arg.page_len = head->arg.page_len;
-	rqstp->rq_arg.page_base = head->arg.page_base;
 
 	/* rq_respages starts after the last arg page */
 	rqstp->rq_respages = &rqstp->rq_pages[page_no];
@@ -642,21 +475,44 @@ static bool svc_rdma_is_backchannel_reply(struct svc_xprt *xprt,
 	return true;
 }
 
-/*
- * Set up the rqstp thread context to point to the RQ buffer. If
- * necessary, pull additional data from the client with an RDMA_READ
- * request.
+/**
+ * svc_rdma_recvfrom - Receive an RPC call
+ * @rqstp: request structure into which to receive an RPC Call
+ *
+ * Returns:
+ *	The positive number of bytes in the RPC Call message,
+ *	%0 if there were no Calls ready to return,
+ *	%-EINVAL if the Read chunk data is too large,
+ *	%-ENOMEM if rdma_rw context pool was exhausted,
+ *	%-ENOTCONN if posting failed (connection is lost),
+ *	%-EIO if rdma_rw initialization failed (DMA mapping, etc).
+ *
+ * Called in a loop when XPT_DATA is set. XPT_DATA is cleared only
+ * when there are no remaining ctxt's to process.
+ *
+ * The next ctxt is removed from the "receive" lists.
+ *
+ * - If the ctxt completes a Read, then finish assembling the Call
+ *   message and return the number of bytes in the message.
+ *
+ * - If the ctxt completes a Receive, then construct the Call
+ *   message from the contents of the Receive buffer.
+ *
+ *   - If there are no Read chunks in this message, then finish
+ *     assembling the Call message and return the number of bytes
+ *     in the message.
+ *
+ *   - If there are Read chunks in this message, post Read WRs to
+ *     pull that payload and return 0.
  */
 int svc_rdma_recvfrom(struct svc_rqst *rqstp)
 {
 	struct svc_xprt *xprt = rqstp->rq_xprt;
 	struct svcxprt_rdma *rdma_xprt =
 		container_of(xprt, struct svcxprt_rdma, sc_xprt);
-	struct svc_rdma_op_ctxt *ctxt = NULL;
-	struct rpcrdma_msg *rmsgp;
-	int ret = 0;
-
-	dprintk("svcrdma: rqstp=%p\n", rqstp);
+	struct svc_rdma_op_ctxt *ctxt;
+	__be32 *p;
+	int ret;
 
 	spin_lock(&rdma_xprt->sc_rq_dto_lock);
 	if (!list_empty(&rdma_xprt->sc_read_complete_q)) {
@@ -671,22 +527,14 @@ int svc_rdma_recvfrom(struct svc_rqst *rqstp)
 					struct svc_rdma_op_ctxt, list);
 		list_del(&ctxt->list);
 	} else {
-		atomic_inc(&rdma_stat_rq_starve);
+		/* No new incoming requests, terminate the loop */
 		clear_bit(XPT_DATA, &xprt->xpt_flags);
-		ctxt = NULL;
+		spin_unlock(&rdma_xprt->sc_rq_dto_lock);
+		return 0;
 	}
 	spin_unlock(&rdma_xprt->sc_rq_dto_lock);
-	if (!ctxt) {
-		/* This is the EAGAIN path. The svc_recv routine will
-		 * return -EAGAIN, the nfsd thread will go to call into
-		 * svc_recv again and we shouldn't be on the active
-		 * transport list
-		 */
-		if (test_bit(XPT_CLOSE, &xprt->xpt_flags))
-			goto defer;
-		goto out;
-	}
-	dprintk("svcrdma: processing ctxt=%p on xprt=%p, rqstp=%p\n",
+
+	dprintk("svcrdma: recvfrom: ctxt=%p on xprt=%p, rqstp=%p\n",
 		ctxt, rdma_xprt, rqstp);
 	atomic_inc(&rdma_stat_recv);
 
@@ -694,7 +542,7 @@ int svc_rdma_recvfrom(struct svc_rqst *rqstp)
 	rdma_build_arg_xdr(rqstp, ctxt, ctxt->byte_len);
 
 	/* Decode the RDMA header. */
-	rmsgp = (struct rpcrdma_msg *)rqstp->rq_arg.head[0].iov_base;
+	p = (__be32 *)rqstp->rq_arg.head[0].iov_base;
 	ret = svc_rdma_xdr_decode_req(&rqstp->rq_arg);
 	if (ret < 0)
 		goto out_err;
@@ -702,9 +550,8 @@ int svc_rdma_recvfrom(struct svc_rqst *rqstp)
 		goto out_drop;
 	rqstp->rq_xprt_hlen = ret;
 
-	if (svc_rdma_is_backchannel_reply(xprt, &rmsgp->rm_xid)) {
-		ret = svc_rdma_handle_bc_reply(xprt->xpt_bc_xprt,
-					       &rmsgp->rm_xid,
+	if (svc_rdma_is_backchannel_reply(xprt, p)) {
+		ret = svc_rdma_handle_bc_reply(xprt->xpt_bc_xprt, p,
 					       &rqstp->rq_arg);
 		svc_rdma_put_context(ctxt, 0);
 		if (ret)
@@ -712,39 +559,34 @@ int svc_rdma_recvfrom(struct svc_rqst *rqstp)
 		return ret;
 	}
 
-	/* Read read-list data. */
-	ret = rdma_read_chunks(rdma_xprt, rmsgp, rqstp, ctxt);
-	if (ret > 0) {
-		/* read-list posted, defer until data received from client. */
-		goto defer;
-	} else if (ret < 0) {
-		/* Post of read-list failed, free context. */
-		svc_rdma_put_context(ctxt, 1);
-		return 0;
-	}
+	p += rpcrdma_fixed_maxsz;
+	if (*p != xdr_zero)
+		goto out_readchunk;
 
 complete:
-	ret = rqstp->rq_arg.head[0].iov_len
-		+ rqstp->rq_arg.page_len
-		+ rqstp->rq_arg.tail[0].iov_len;
 	svc_rdma_put_context(ctxt, 0);
- out:
-	dprintk("svcrdma: ret=%d, rq_arg.len=%u, "
-		"rq_arg.head[0].iov_base=%p, rq_arg.head[0].iov_len=%zd\n",
-		ret, rqstp->rq_arg.len,
-		rqstp->rq_arg.head[0].iov_base,
-		rqstp->rq_arg.head[0].iov_len);
+	dprintk("svcrdma: recvfrom: xprt=%p, rqstp=%p, rq_arg.len=%u\n",
+		rdma_xprt, rqstp, rqstp->rq_arg.len);
 	rqstp->rq_prot = IPPROTO_MAX;
 	svc_xprt_copy_addrs(rqstp, xprt);
-	return ret;
+	return rqstp->rq_arg.len;
+
+out_readchunk:
+	ret = svc_rdma_recv_read_chunk(rdma_xprt, rqstp, ctxt, p);
+	if (ret < 0)
+		goto out_postfail;
+	return 0;
 
 out_err:
-	svc_rdma_send_error(rdma_xprt, &rmsgp->rm_xid, ret);
+	svc_rdma_send_error(rdma_xprt, p, ret);
 	svc_rdma_put_context(ctxt, 0);
 	return 0;
 
-defer:
-	return 0;
+out_postfail:
+	if (ret == -EINVAL)
+		svc_rdma_send_error(rdma_xprt, p, ret);
+	svc_rdma_put_context(ctxt, 1);
+	return ret;
 
 out_drop:
 	svc_rdma_put_context(ctxt, 1);
diff --git a/net/sunrpc/xprtrdma/svc_rdma_rw.c b/net/sunrpc/xprtrdma/svc_rdma_rw.c
index 0cf620277693..933f79bed270 100644
--- a/net/sunrpc/xprtrdma/svc_rdma_rw.c
+++ b/net/sunrpc/xprtrdma/svc_rdma_rw.c
@@ -12,6 +12,9 @@
 
 #define RPCDBG_FACILITY	RPCDBG_SVCXPRT
 
+static void svc_rdma_write_done(struct ib_cq *cq, struct ib_wc *wc);
+static void svc_rdma_wc_read_done(struct ib_cq *cq, struct ib_wc *wc);
+
 /* Each R/W context contains state for one chain of RDMA Read or
  * Write Work Requests.
  *
@@ -113,22 +116,20 @@ struct svc_rdma_chunk_ctxt {
 	struct svcxprt_rdma	*cc_rdma;
 	struct list_head	cc_rwctxts;
 	int			cc_sqecount;
-	enum dma_data_direction cc_dir;
 };
 
 static void svc_rdma_cc_init(struct svcxprt_rdma *rdma,
-			     struct svc_rdma_chunk_ctxt *cc,
-			     enum dma_data_direction dir)
+			     struct svc_rdma_chunk_ctxt *cc)
 {
 	cc->cc_rdma = rdma;
 	svc_xprt_get(&rdma->sc_xprt);
 
 	INIT_LIST_HEAD(&cc->cc_rwctxts);
 	cc->cc_sqecount = 0;
-	cc->cc_dir = dir;
 }
 
-static void svc_rdma_cc_release(struct svc_rdma_chunk_ctxt *cc)
+static void svc_rdma_cc_release(struct svc_rdma_chunk_ctxt *cc,
+				enum dma_data_direction dir)
 {
 	struct svcxprt_rdma *rdma = cc->cc_rdma;
 	struct svc_rdma_rw_ctxt *ctxt;
@@ -138,7 +139,7 @@ static void svc_rdma_cc_release(struct svc_rdma_chunk_ctxt *cc)
 
 		rdma_rw_ctx_destroy(&ctxt->rw_ctx, rdma->sc_qp,
 				    rdma->sc_port_num, ctxt->rw_sg_table.sgl,
-				    ctxt->rw_nents, cc->cc_dir);
+				    ctxt->rw_nents, dir);
 		svc_rdma_put_rw_ctxt(rdma, ctxt);
 	}
 	svc_xprt_put(&rdma->sc_xprt);
@@ -176,13 +177,14 @@ svc_rdma_write_info_alloc(struct svcxprt_rdma *rdma, __be32 *chunk)
 	info->wi_seg_no = 0;
 	info->wi_nsegs = be32_to_cpup(++chunk);
 	info->wi_segs = ++chunk;
-	svc_rdma_cc_init(rdma, &info->wi_cc, DMA_TO_DEVICE);
+	svc_rdma_cc_init(rdma, &info->wi_cc);
+	info->wi_cc.cc_cqe.done = svc_rdma_write_done;
 	return info;
 }
 
 static void svc_rdma_write_info_free(struct svc_rdma_write_info *info)
 {
-	svc_rdma_cc_release(&info->wi_cc);
+	svc_rdma_cc_release(&info->wi_cc, DMA_TO_DEVICE);
 	kfree(info);
 }
 
@@ -216,6 +218,76 @@ static void svc_rdma_write_done(struct ib_cq *cq, struct ib_wc *wc)
 	svc_rdma_write_info_free(info);
 }
 
+/* State for pulling a Read chunk.
+ */
+struct svc_rdma_read_info {
+	struct svc_rdma_op_ctxt		*ri_readctxt;
+	unsigned int			ri_position;
+	unsigned int			ri_pageno;
+	unsigned int			ri_pageoff;
+	unsigned int			ri_chunklen;
+
+	struct svc_rdma_chunk_ctxt	ri_cc;
+};
+
+static struct svc_rdma_read_info *
+svc_rdma_read_info_alloc(struct svcxprt_rdma *rdma)
+{
+	struct svc_rdma_read_info *info;
+
+	info = kmalloc(sizeof(*info), GFP_KERNEL);
+	if (!info)
+		return info;
+
+	svc_rdma_cc_init(rdma, &info->ri_cc);
+	info->ri_cc.cc_cqe.done = svc_rdma_wc_read_done;
+	return info;
+}
+
+static void svc_rdma_read_info_free(struct svc_rdma_read_info *info)
+{
+	svc_rdma_cc_release(&info->ri_cc, DMA_FROM_DEVICE);
+	kfree(info);
+}
+
+/**
+ * svc_rdma_wc_read_done - Handle completion of an RDMA Read ctx
+ * @cq: controlling Completion Queue
+ * @wc: Work Completion
+ *
+ */
+static void svc_rdma_wc_read_done(struct ib_cq *cq, struct ib_wc *wc)
+{
+	struct ib_cqe *cqe = wc->wr_cqe;
+	struct svc_rdma_chunk_ctxt *cc =
+			container_of(cqe, struct svc_rdma_chunk_ctxt, cc_cqe);
+	struct svcxprt_rdma *rdma = cc->cc_rdma;
+	struct svc_rdma_read_info *info =
+			container_of(cc, struct svc_rdma_read_info, ri_cc);
+
+	atomic_add(cc->cc_sqecount, &rdma->sc_sq_avail);
+	wake_up(&rdma->sc_send_wait);
+
+	if (unlikely(wc->status != IB_WC_SUCCESS)) {
+		set_bit(XPT_CLOSE, &rdma->sc_xprt.xpt_flags);
+		if (wc->status != IB_WC_WR_FLUSH_ERR)
+			pr_err("svcrdma: read ctx: %s (%u/0x%x)\n",
+			       ib_wc_status_msg(wc->status),
+			       wc->status, wc->vendor_err);
+		svc_rdma_put_context(info->ri_readctxt, 1);
+	} else {
+		spin_lock(&rdma->sc_rq_dto_lock);
+		list_add_tail(&info->ri_readctxt->list,
+			      &rdma->sc_read_complete_q);
+		spin_unlock(&rdma->sc_rq_dto_lock);
+
+		set_bit(XPT_DATA, &rdma->sc_xprt.xpt_flags);
+		svc_xprt_enqueue(&rdma->sc_xprt);
+	}
+
+	svc_rdma_read_info_free(info);
+}
+
 /* This function sleeps when the transport's Send Queue is congested.
  *
  * Assumptions:
@@ -232,6 +304,9 @@ static int svc_rdma_post_chunk_ctxt(struct svc_rdma_chunk_ctxt *cc)
 	struct ib_cqe *cqe;
 	int ret;
 
+	if (cc->cc_sqecount > rdma->sc_sq_depth)
+		return -EINVAL;
+
 	first_wr = NULL;
 	cqe = &cc->cc_cqe;
 	list_for_each(tmp, &cc->cc_rwctxts) {
@@ -295,8 +370,9 @@ static void svc_rdma_pagelist_to_sg(struct svc_rdma_write_info *info,
 	struct scatterlist *sg;
 	struct page **page;
 
-	page_off = (info->wi_next_off + xdr->page_base) & ~PAGE_MASK;
-	page_no = (info->wi_next_off + xdr->page_base) >> PAGE_SHIFT;
+	page_off = info->wi_next_off + xdr->page_base;
+	page_no = page_off >> PAGE_SHIFT;
+	page_off = offset_in_page(page_off);
 	page = xdr->pages + page_no;
 	info->wi_next_off += remaining;
 	sg = ctxt->rw_sg_table.sgl;
@@ -332,7 +408,6 @@ svc_rdma_build_writes(struct svc_rdma_write_info *info,
 	__be32 *seg;
 	int ret;
 
-	cc->cc_cqe.done = svc_rdma_write_done;
 	seg = info->wi_segs + info->wi_seg_no * rpcrdma_segment_maxsz;
 	do {
 		unsigned int write_len;
@@ -425,6 +500,7 @@ static int svc_rdma_send_xdr_pagelist(struct svc_rdma_write_info *info,
  *
  * Returns a non-negative number of bytes the chunk consumed, or
  *	%-E2BIG if the payload was larger than the Write chunk,
+ *	%-EINVAL if client provided too many segments,
  *	%-ENOMEM if rdma_rw context pool was exhausted,
  *	%-ENOTCONN if posting failed (connection is lost),
  *	%-EIO if rdma_rw initialization failed (DMA mapping, etc).
@@ -465,6 +541,7 @@ out_err:
  *
  * Returns a non-negative number of bytes the chunk consumed, or
  *	%-E2BIG if the payload was larger than the Reply chunk,
+ *	%-EINVAL if client provided too many segments,
  *	%-ENOMEM if rdma_rw context pool was exhausted,
  *	%-ENOTCONN if posting failed (connection is lost),
  *	%-EIO if rdma_rw initialization failed (DMA mapping, etc).
@@ -510,3 +587,353 @@ out_err:
 	svc_rdma_write_info_free(info);
 	return ret;
 }
+
+static int svc_rdma_build_read_segment(struct svc_rdma_read_info *info,
+				       struct svc_rqst *rqstp,
+				       u32 rkey, u32 len, u64 offset)
+{
+	struct svc_rdma_op_ctxt *head = info->ri_readctxt;
+	struct svc_rdma_chunk_ctxt *cc = &info->ri_cc;
+	struct svc_rdma_rw_ctxt *ctxt;
+	unsigned int sge_no, seg_len;
+	struct scatterlist *sg;
+	int ret;
+
+	sge_no = PAGE_ALIGN(info->ri_pageoff + len) >> PAGE_SHIFT;
+	ctxt = svc_rdma_get_rw_ctxt(cc->cc_rdma, sge_no);
+	if (!ctxt)
+		goto out_noctx;
+	ctxt->rw_nents = sge_no;
+
+	dprintk("svcrdma: reading segment %u@0x%016llx:0x%08x (%u sges)\n",
+		len, offset, rkey, sge_no);
+
+	sg = ctxt->rw_sg_table.sgl;
+	for (sge_no = 0; sge_no < ctxt->rw_nents; sge_no++) {
+		seg_len = min_t(unsigned int, len,
+				PAGE_SIZE - info->ri_pageoff);
+
+		head->arg.pages[info->ri_pageno] =
+			rqstp->rq_pages[info->ri_pageno];
+		if (!info->ri_pageoff)
+			head->count++;
+
+		sg_set_page(sg, rqstp->rq_pages[info->ri_pageno],
+			    seg_len, info->ri_pageoff);
+		sg = sg_next(sg);
+
+		info->ri_pageoff += seg_len;
+		if (info->ri_pageoff == PAGE_SIZE) {
+			info->ri_pageno++;
+			info->ri_pageoff = 0;
+		}
+		len -= seg_len;
+
+		/* Safety check */
+		if (len &&
+		    &rqstp->rq_pages[info->ri_pageno + 1] > rqstp->rq_page_end)
+			goto out_overrun;
+	}
+
+	ret = rdma_rw_ctx_init(&ctxt->rw_ctx, cc->cc_rdma->sc_qp,
+			       cc->cc_rdma->sc_port_num,
+			       ctxt->rw_sg_table.sgl, ctxt->rw_nents,
+			       0, offset, rkey, DMA_FROM_DEVICE);
+	if (ret < 0)
+		goto out_initerr;
+
+	list_add(&ctxt->rw_list, &cc->cc_rwctxts);
+	cc->cc_sqecount += ret;
+	return 0;
+
+out_noctx:
+	dprintk("svcrdma: no R/W ctxs available\n");
+	return -ENOMEM;
+
+out_overrun:
+	dprintk("svcrdma: request overruns rq_pages\n");
+	return -EINVAL;
+
+out_initerr:
+	svc_rdma_put_rw_ctxt(cc->cc_rdma, ctxt);
+	pr_err("svcrdma: failed to map pagelist (%d)\n", ret);
+	return -EIO;
+}
+
+static int svc_rdma_build_read_chunk(struct svc_rqst *rqstp,
+				     struct svc_rdma_read_info *info,
+				     __be32 *p)
+{
+	int ret;
+
+	info->ri_chunklen = 0;
+	while (*p++ != xdr_zero) {
+		u32 rs_handle, rs_length;
+		u64 rs_offset;
+
+		if (be32_to_cpup(p++) != info->ri_position)
+			break;
+		rs_handle = be32_to_cpup(p++);
+		rs_length = be32_to_cpup(p++);
+		p = xdr_decode_hyper(p, &rs_offset);
+
+		ret = svc_rdma_build_read_segment(info, rqstp,
+						  rs_handle, rs_length,
+						  rs_offset);
+		if (ret < 0)
+			break;
+
+		info->ri_chunklen += rs_length;
+	}
+
+	return ret;
+}
+
+/* If there is inline content following the Read chunk, append it to
+ * the page list immediately following the data payload. This has to
+ * be done after the reader function has determined how many pages
+ * were consumed for RDMA Read.
+ *
+ * On entry, ri_pageno and ri_pageoff point directly to the end of the
+ * page list. On exit, both have been updated to the new "next byte".
+ *
+ * Assumptions:
+ *	- Inline content fits entirely in rq_pages[0]
+ *	- Trailing content is only a handful of bytes
+ */
+static int svc_rdma_copy_tail(struct svc_rqst *rqstp,
+			      struct svc_rdma_read_info *info)
+{
+	struct svc_rdma_op_ctxt *head = info->ri_readctxt;
+	unsigned int tail_length, remaining;
+	u8 *srcp, *destp;
+
+	/* Assert that all inline content fits in page 0. This is an
+	 * implementation limit, not a protocol limit.
+	 */
+	if (head->arg.head[0].iov_len > PAGE_SIZE) {
+		pr_warn_once("svcrdma: too much trailing inline content\n");
+		return -EINVAL;
+	}
+
+	srcp = head->arg.head[0].iov_base;
+	srcp += info->ri_position;
+	tail_length = head->arg.head[0].iov_len - info->ri_position;
+	remaining = tail_length;
+
+	/* If there is room on the last page in the page list, try to
+	 * fit the trailing content there.
+	 */
+	if (info->ri_pageoff > 0) {
+		unsigned int len;
+
+		len = min_t(unsigned int, remaining,
+			    PAGE_SIZE - info->ri_pageoff);
+		destp = page_address(rqstp->rq_pages[info->ri_pageno]);
+		destp += info->ri_pageoff;
+
+		memcpy(destp, srcp, len);
+		srcp += len;
+		destp += len;
+		info->ri_pageoff += len;
+		remaining -= len;
+
+		if (info->ri_pageoff == PAGE_SIZE) {
+			info->ri_pageno++;
+			info->ri_pageoff = 0;
+		}
+	}
+
+	/* Otherwise, a fresh page is needed. */
+	if (remaining) {
+		head->arg.pages[info->ri_pageno] =
+				rqstp->rq_pages[info->ri_pageno];
+		head->count++;
+
+		destp = page_address(rqstp->rq_pages[info->ri_pageno]);
+		memcpy(destp, srcp, remaining);
+		info->ri_pageoff += remaining;
+	}
+
+	head->arg.page_len += tail_length;
+	head->arg.len += tail_length;
+	head->arg.buflen += tail_length;
+	return 0;
+}
+
+/* Construct RDMA Reads to pull over a normal Read chunk. The chunk
+ * data lands in the page list of head->arg.pages.
+ *
+ * Currently NFSD does not look at the head->arg.tail[0] iovec.
+ * Therefore, XDR round-up of the Read chunk and trailing
+ * inline content must both be added at the end of the pagelist.
+ */
+static int svc_rdma_build_normal_read_chunk(struct svc_rqst *rqstp,
+					    struct svc_rdma_read_info *info,
+					    __be32 *p)
+{
+	struct svc_rdma_op_ctxt *head = info->ri_readctxt;
+	int ret;
+
+	dprintk("svcrdma: Reading Read chunk at position %u\n",
+		info->ri_position);
+
+	info->ri_pageno = head->hdr_count;
+	info->ri_pageoff = 0;
+
+	ret = svc_rdma_build_read_chunk(rqstp, info, p);
+	if (ret < 0)
+		goto out;
+
+	/* Read chunk may need XDR round-up (see RFC 5666, s. 3.7).
+	 */
+	if (info->ri_chunklen & 3) {
+		u32 padlen = 4 - (info->ri_chunklen & 3);
+
+		info->ri_chunklen += padlen;
+
+		/* NB: data payload always starts on XDR alignment,
+		 * thus the pad can never contain a page boundary.
+		 */
+		info->ri_pageoff += padlen;
+		if (info->ri_pageoff == PAGE_SIZE) {
+			info->ri_pageno++;
+			info->ri_pageoff = 0;
+		}
+	}
+
+	head->arg.page_len = info->ri_chunklen;
+	head->arg.len += info->ri_chunklen;
+	head->arg.buflen += info->ri_chunklen;
+
+	if (info->ri_position < head->arg.head[0].iov_len) {
+		ret = svc_rdma_copy_tail(rqstp, info);
+		if (ret < 0)
+			goto out;
+	}
+	head->arg.head[0].iov_len = info->ri_position;
+
+out:
+	return ret;
+}
+
+/* Construct RDMA Reads to pull over a Position Zero Read chunk.
+ * The start of the data lands in the first page just after
+ * the Transport header, and the rest lands in the page list of
+ * head->arg.pages.
+ *
+ * Assumptions:
+ *	- A PZRC has an XDR-aligned length (no implicit round-up).
+ *	- There can be no trailing inline content (IOW, we assume
+ *	  a PZRC is never sent in an RDMA_MSG message, though it's
+ *	  allowed by spec).
+ */
+static int svc_rdma_build_pz_read_chunk(struct svc_rqst *rqstp,
+					struct svc_rdma_read_info *info,
+					__be32 *p)
+{
+	struct svc_rdma_op_ctxt *head = info->ri_readctxt;
+	int ret;
+
+	dprintk("svcrdma: Reading Position Zero Read chunk\n");
+
+	info->ri_pageno = head->hdr_count - 1;
+	info->ri_pageoff = offset_in_page(head->byte_len);
+
+	ret = svc_rdma_build_read_chunk(rqstp, info, p);
+	if (ret < 0)
+		goto out;
+
+	head->arg.len += info->ri_chunklen;
+	head->arg.buflen += info->ri_chunklen;
+
+	if (head->arg.buflen <= head->sge[0].length) {
+		/* Transport header and RPC message fit entirely
+		 * in page where head iovec resides.
+		 */
+		head->arg.head[0].iov_len = info->ri_chunklen;
+	} else {
+		/* Transport header and part of RPC message reside
+		 * in the head iovec's page.
+		 */
+		head->arg.head[0].iov_len =
+				head->sge[0].length - head->byte_len;
+		head->arg.page_len =
+				info->ri_chunklen - head->arg.head[0].iov_len;
+	}
+
+out:
+	return ret;
+}
+
+/**
+ * svc_rdma_recv_read_chunk - Pull a Read chunk from the client
+ * @rdma: controlling RDMA transport
+ * @rqstp: set of pages to use as Read sink buffers
+ * @head: pages under I/O collect here
+ * @p: pointer to start of Read chunk
+ *
+ * Returns:
+ *	%0 if all needed RDMA Reads were posted successfully,
+ *	%-EINVAL if client provided too many segments,
+ *	%-ENOMEM if rdma_rw context pool was exhausted,
+ *	%-ENOTCONN if posting failed (connection is lost),
+ *	%-EIO if rdma_rw initialization failed (DMA mapping, etc).
+ *
+ * Assumptions:
+ * - All Read segments in @p have the same Position value.
+ */
+int svc_rdma_recv_read_chunk(struct svcxprt_rdma *rdma, struct svc_rqst *rqstp,
+			     struct svc_rdma_op_ctxt *head, __be32 *p)
+{
+	struct svc_rdma_read_info *info;
+	struct page **page;
+	int ret;
+
+	/* The request (with page list) is constructed in
+	 * head->arg. Pages involved with RDMA Read I/O are
+	 * transferred there.
+	 */
+	head->hdr_count = head->count;
+	head->arg.head[0] = rqstp->rq_arg.head[0];
+	head->arg.tail[0] = rqstp->rq_arg.tail[0];
+	head->arg.pages = head->pages;
+	head->arg.page_base = 0;
+	head->arg.page_len = 0;
+	head->arg.len = rqstp->rq_arg.len;
+	head->arg.buflen = rqstp->rq_arg.buflen;
+
+	info = svc_rdma_read_info_alloc(rdma);
+	if (!info)
+		return -ENOMEM;
+	info->ri_readctxt = head;
+
+	info->ri_position = be32_to_cpup(p + 1);
+	if (info->ri_position)
+		ret = svc_rdma_build_normal_read_chunk(rqstp, info, p);
+	else
+		ret = svc_rdma_build_pz_read_chunk(rqstp, info, p);
+
+	/* Mark the start of the pages that can be used for the reply */
+	if (info->ri_pageoff > 0)
+		info->ri_pageno++;
+	rqstp->rq_respages = &rqstp->rq_pages[info->ri_pageno];
+	rqstp->rq_next_page = rqstp->rq_respages + 1;
+
+	if (ret < 0)
+		goto out;
+
+	ret = svc_rdma_post_chunk_ctxt(&info->ri_cc);
+
+out:
+	/* Read sink pages have been moved from rqstp->rq_pages to
+	 * head->arg.pages. Force svc_recv to refill those slots
+	 * in rq_pages.
+	 */
+	for (page = rqstp->rq_pages; page < rqstp->rq_respages; page++)
+		*page = NULL;
+
+	if (ret < 0)
+		svc_rdma_read_info_free(info);
+	return ret;
+}
diff --git a/net/sunrpc/xprtrdma/svc_rdma_sendto.c b/net/sunrpc/xprtrdma/svc_rdma_sendto.c
index 1736337f3a55..7c3a211e0e9a 100644
--- a/net/sunrpc/xprtrdma/svc_rdma_sendto.c
+++ b/net/sunrpc/xprtrdma/svc_rdma_sendto.c
@@ -313,13 +313,17 @@ static int svc_rdma_dma_map_buf(struct svcxprt_rdma *rdma,
 	dma_addr = ib_dma_map_page(dev, virt_to_page(base),
 				   offset, len, DMA_TO_DEVICE);
 	if (ib_dma_mapping_error(dev, dma_addr))
-		return -EIO;
+		goto out_maperr;
 
 	ctxt->sge[sge_no].addr = dma_addr;
 	ctxt->sge[sge_no].length = len;
 	ctxt->sge[sge_no].lkey = rdma->sc_pd->local_dma_lkey;
 	svc_rdma_count_mappings(rdma, ctxt);
 	return 0;
+
+out_maperr:
+	pr_err("svcrdma: failed to map buffer\n");
+	return -EIO;
 }
 
 static int svc_rdma_dma_map_page(struct svcxprt_rdma *rdma,
@@ -334,13 +338,17 @@ static int svc_rdma_dma_map_page(struct svcxprt_rdma *rdma,
 
 	dma_addr = ib_dma_map_page(dev, page, offset, len, DMA_TO_DEVICE);
 	if (ib_dma_mapping_error(dev, dma_addr))
-		return -EIO;
+		goto out_maperr;
 
 	ctxt->sge[sge_no].addr = dma_addr;
 	ctxt->sge[sge_no].length = len;
 	ctxt->sge[sge_no].lkey = rdma->sc_pd->local_dma_lkey;
 	svc_rdma_count_mappings(rdma, ctxt);
 	return 0;
+
+out_maperr:
+	pr_err("svcrdma: failed to map page\n");
+	return -EIO;
 }
 
 /**
@@ -547,7 +555,6 @@ static int svc_rdma_send_reply_msg(struct svcxprt_rdma *rdma,
 	return 0;
 
 err:
-	pr_err("svcrdma: failed to post Send WR (%d)\n", ret);
 	svc_rdma_unmap_dma(ctxt);
 	svc_rdma_put_context(ctxt, 1);
 	return ret;
@@ -677,7 +684,7 @@ int svc_rdma_sendto(struct svc_rqst *rqstp)
 	return 0;
 
  err2:
-	if (ret != -E2BIG)
+	if (ret != -E2BIG && ret != -EINVAL)
 		goto err1;
 
 	ret = svc_rdma_post_recv(rdma, GFP_KERNEL);
diff --git a/net/sunrpc/xprtrdma/svc_rdma_transport.c b/net/sunrpc/xprtrdma/svc_rdma_transport.c
index a9d9cb1ba4c6..e660d4965b18 100644
--- a/net/sunrpc/xprtrdma/svc_rdma_transport.c
+++ b/net/sunrpc/xprtrdma/svc_rdma_transport.c
@@ -202,7 +202,6 @@ struct svc_rdma_op_ctxt *svc_rdma_get_context(struct svcxprt_rdma *xprt)
 out:
 	ctxt->count = 0;
 	ctxt->mapped_sges = 0;
-	ctxt->frmr = NULL;
 	return ctxt;
 
 out_empty:
@@ -226,22 +225,13 @@ void svc_rdma_unmap_dma(struct svc_rdma_op_ctxt *ctxt)
 {
 	struct svcxprt_rdma *xprt = ctxt->xprt;
 	struct ib_device *device = xprt->sc_cm_id->device;
-	u32 lkey = xprt->sc_pd->local_dma_lkey;
 	unsigned int i;
 
-	for (i = 0; i < ctxt->mapped_sges; i++) {
-		/*
-		 * Unmap the DMA addr in the SGE if the lkey matches
-		 * the local_dma_lkey, otherwise, ignore it since it is
-		 * an FRMR lkey and will be unmapped later when the
-		 * last WR that uses it completes.
-		 */
-		if (ctxt->sge[i].lkey == lkey)
-			ib_dma_unmap_page(device,
-					    ctxt->sge[i].addr,
-					    ctxt->sge[i].length,
-					    ctxt->direction);
-	}
+	for (i = 0; i < ctxt->mapped_sges; i++)
+		ib_dma_unmap_page(device,
+				  ctxt->sge[i].addr,
+				  ctxt->sge[i].length,
+				  ctxt->direction);
 	ctxt->mapped_sges = 0;
 }
 
@@ -346,36 +336,6 @@ out:
 	svc_xprt_put(&xprt->sc_xprt);
 }
 
-static void svc_rdma_send_wc_common(struct svcxprt_rdma *xprt,
-				    struct ib_wc *wc,
-				    const char *opname)
-{
-	if (wc->status != IB_WC_SUCCESS)
-		goto err;
-
-out:
-	atomic_inc(&xprt->sc_sq_avail);
-	wake_up(&xprt->sc_send_wait);
-	return;
-
-err:
-	set_bit(XPT_CLOSE, &xprt->sc_xprt.xpt_flags);
-	if (wc->status != IB_WC_WR_FLUSH_ERR)
-		pr_err("svcrdma: %s: %s (%u/0x%x)\n",
-		       opname, ib_wc_status_msg(wc->status),
-		       wc->status, wc->vendor_err);
-	goto out;
-}
-
-static void svc_rdma_send_wc_common_put(struct ib_cq *cq, struct ib_wc *wc,
-					const char *opname)
-{
-	struct svcxprt_rdma *xprt = cq->cq_context;
-
-	svc_rdma_send_wc_common(xprt, wc, opname);
-	svc_xprt_put(&xprt->sc_xprt);
-}
-
 /**
  * svc_rdma_wc_send - Invoked by RDMA provider for each polled Send WC
  * @cq:        completion queue
@@ -384,73 +344,28 @@ static void svc_rdma_send_wc_common_put(struct ib_cq *cq, struct ib_wc *wc,
  */
 void svc_rdma_wc_send(struct ib_cq *cq, struct ib_wc *wc)
 {
-	struct ib_cqe *cqe = wc->wr_cqe;
-	struct svc_rdma_op_ctxt *ctxt;
-
-	svc_rdma_send_wc_common_put(cq, wc, "send");
-
-	ctxt = container_of(cqe, struct svc_rdma_op_ctxt, cqe);
-	svc_rdma_unmap_dma(ctxt);
-	svc_rdma_put_context(ctxt, 1);
-}
-
-/**
- * svc_rdma_wc_reg - Invoked by RDMA provider for each polled FASTREG WC
- * @cq:        completion queue
- * @wc:        completed WR
- *
- */
-void svc_rdma_wc_reg(struct ib_cq *cq, struct ib_wc *wc)
-{
-	svc_rdma_send_wc_common_put(cq, wc, "fastreg");
-}
-
-/**
- * svc_rdma_wc_read - Invoked by RDMA provider for each polled Read WC
- * @cq:        completion queue
- * @wc:        completed WR
- *
- */
-void svc_rdma_wc_read(struct ib_cq *cq, struct ib_wc *wc)
-{
 	struct svcxprt_rdma *xprt = cq->cq_context;
 	struct ib_cqe *cqe = wc->wr_cqe;
 	struct svc_rdma_op_ctxt *ctxt;
 
-	svc_rdma_send_wc_common(xprt, wc, "read");
+	atomic_inc(&xprt->sc_sq_avail);
+	wake_up(&xprt->sc_send_wait);
 
 	ctxt = container_of(cqe, struct svc_rdma_op_ctxt, cqe);
 	svc_rdma_unmap_dma(ctxt);
-	svc_rdma_put_frmr(xprt, ctxt->frmr);
-
-	if (test_bit(RDMACTXT_F_LAST_CTXT, &ctxt->flags)) {
-		struct svc_rdma_op_ctxt *read_hdr;
-
-		read_hdr = ctxt->read_hdr;
-		spin_lock(&xprt->sc_rq_dto_lock);
-		list_add_tail(&read_hdr->list,
-			      &xprt->sc_read_complete_q);
-		spin_unlock(&xprt->sc_rq_dto_lock);
+	svc_rdma_put_context(ctxt, 1);
 
-		set_bit(XPT_DATA, &xprt->sc_xprt.xpt_flags);
-		svc_xprt_enqueue(&xprt->sc_xprt);
+	if (unlikely(wc->status != IB_WC_SUCCESS)) {
+		set_bit(XPT_CLOSE, &xprt->sc_xprt.xpt_flags);
+		if (wc->status != IB_WC_WR_FLUSH_ERR)
+			pr_err("svcrdma: Send: %s (%u/0x%x)\n",
+			       ib_wc_status_msg(wc->status),
+			       wc->status, wc->vendor_err);
 	}
 
-	svc_rdma_put_context(ctxt, 0);
 	svc_xprt_put(&xprt->sc_xprt);
 }
 
-/**
- * svc_rdma_wc_inv - Invoked by RDMA provider for each polled LOCAL_INV WC
- * @cq:        completion queue
- * @wc:        completed WR
- *
- */
-void svc_rdma_wc_inv(struct ib_cq *cq, struct ib_wc *wc)
-{
-	svc_rdma_send_wc_common_put(cq, wc, "localInv");
-}
-
 static struct svcxprt_rdma *rdma_create_xprt(struct svc_serv *serv,
 					     int listener)
 {
@@ -462,14 +377,12 @@ static struct svcxprt_rdma *rdma_create_xprt(struct svc_serv *serv,
 	INIT_LIST_HEAD(&cma_xprt->sc_accept_q);
 	INIT_LIST_HEAD(&cma_xprt->sc_rq_dto_q);
 	INIT_LIST_HEAD(&cma_xprt->sc_read_complete_q);
-	INIT_LIST_HEAD(&cma_xprt->sc_frmr_q);
 	INIT_LIST_HEAD(&cma_xprt->sc_ctxts);
 	INIT_LIST_HEAD(&cma_xprt->sc_rw_ctxts);
 	init_waitqueue_head(&cma_xprt->sc_send_wait);
 
 	spin_lock_init(&cma_xprt->sc_lock);
 	spin_lock_init(&cma_xprt->sc_rq_dto_lock);
-	spin_lock_init(&cma_xprt->sc_frmr_q_lock);
 	spin_lock_init(&cma_xprt->sc_ctxt_lock);
 	spin_lock_init(&cma_xprt->sc_rw_ctxt_lock);
 
@@ -780,86 +693,6 @@ static struct svc_xprt *svc_rdma_create(struct svc_serv *serv,
 	return ERR_PTR(ret);
 }
 
-static struct svc_rdma_fastreg_mr *rdma_alloc_frmr(struct svcxprt_rdma *xprt)
-{
-	struct ib_mr *mr;
-	struct scatterlist *sg;
-	struct svc_rdma_fastreg_mr *frmr;
-	u32 num_sg;
-
-	frmr = kmalloc(sizeof(*frmr), GFP_KERNEL);
-	if (!frmr)
-		goto err;
-
-	num_sg = min_t(u32, RPCSVC_MAXPAGES, xprt->sc_frmr_pg_list_len);
-	mr = ib_alloc_mr(xprt->sc_pd, IB_MR_TYPE_MEM_REG, num_sg);
-	if (IS_ERR(mr))
-		goto err_free_frmr;
-
-	sg = kcalloc(RPCSVC_MAXPAGES, sizeof(*sg), GFP_KERNEL);
-	if (!sg)
-		goto err_free_mr;
-
-	sg_init_table(sg, RPCSVC_MAXPAGES);
-
-	frmr->mr = mr;
-	frmr->sg = sg;
-	INIT_LIST_HEAD(&frmr->frmr_list);
-	return frmr;
-
- err_free_mr:
-	ib_dereg_mr(mr);
- err_free_frmr:
-	kfree(frmr);
- err:
-	return ERR_PTR(-ENOMEM);
-}
-
-static void rdma_dealloc_frmr_q(struct svcxprt_rdma *xprt)
-{
-	struct svc_rdma_fastreg_mr *frmr;
-
-	while (!list_empty(&xprt->sc_frmr_q)) {
-		frmr = list_entry(xprt->sc_frmr_q.next,
-				  struct svc_rdma_fastreg_mr, frmr_list);
-		list_del_init(&frmr->frmr_list);
-		kfree(frmr->sg);
-		ib_dereg_mr(frmr->mr);
-		kfree(frmr);
-	}
-}
-
-struct svc_rdma_fastreg_mr *svc_rdma_get_frmr(struct svcxprt_rdma *rdma)
-{
-	struct svc_rdma_fastreg_mr *frmr = NULL;
-
-	spin_lock(&rdma->sc_frmr_q_lock);
-	if (!list_empty(&rdma->sc_frmr_q)) {
-		frmr = list_entry(rdma->sc_frmr_q.next,
-				  struct svc_rdma_fastreg_mr, frmr_list);
-		list_del_init(&frmr->frmr_list);
-		frmr->sg_nents = 0;
-	}
-	spin_unlock(&rdma->sc_frmr_q_lock);
-	if (frmr)
-		return frmr;
-
-	return rdma_alloc_frmr(rdma);
-}
-
-void svc_rdma_put_frmr(struct svcxprt_rdma *rdma,
-		       struct svc_rdma_fastreg_mr *frmr)
-{
-	if (frmr) {
-		ib_dma_unmap_sg(rdma->sc_cm_id->device,
-				frmr->sg, frmr->sg_nents, frmr->direction);
-		spin_lock(&rdma->sc_frmr_q_lock);
-		WARN_ON_ONCE(!list_empty(&frmr->frmr_list));
-		list_add(&frmr->frmr_list, &rdma->sc_frmr_q);
-		spin_unlock(&rdma->sc_frmr_q_lock);
-	}
-}
-
 /*
  * This is the xpo_recvfrom function for listening endpoints. Its
  * purpose is to accept incoming connections. The CMA callback handler
@@ -908,8 +741,6 @@ static struct svc_xprt *svc_rdma_accept(struct svc_xprt *xprt)
 	 * capabilities of this particular device */
 	newxprt->sc_max_sge = min((size_t)dev->attrs.max_sge,
 				  (size_t)RPCSVC_MAXPAGES);
-	newxprt->sc_max_sge_rd = min_t(size_t, dev->attrs.max_sge_rd,
-				       RPCSVC_MAXPAGES);
 	newxprt->sc_max_req_size = svcrdma_max_req_size;
 	newxprt->sc_max_requests = min_t(u32, dev->attrs.max_qp_wr,
 					 svcrdma_max_requests);
@@ -952,7 +783,7 @@ static struct svc_xprt *svc_rdma_accept(struct svc_xprt *xprt)
 	memset(&qp_attr, 0, sizeof qp_attr);
 	qp_attr.event_handler = qp_event_handler;
 	qp_attr.qp_context = &newxprt->sc_xprt;
-	qp_attr.port_num = newxprt->sc_cm_id->port_num;
+	qp_attr.port_num = newxprt->sc_port_num;
 	qp_attr.cap.max_rdma_ctxs = newxprt->sc_max_requests;
 	qp_attr.cap.max_send_wr = newxprt->sc_sq_depth;
 	qp_attr.cap.max_recv_wr = newxprt->sc_rq_depth;
@@ -976,47 +807,12 @@ static struct svc_xprt *svc_rdma_accept(struct svc_xprt *xprt)
 	}
 	newxprt->sc_qp = newxprt->sc_cm_id->qp;
 
-	/*
-	 * Use the most secure set of MR resources based on the
-	 * transport type and available memory management features in
-	 * the device. Here's the table implemented below:
-	 *
-	 *		Fast	Global	DMA	Remote WR
-	 *		Reg	LKEY	MR	Access
-	 *		Sup'd	Sup'd	Needed	Needed
-	 *
-	 * IWARP	N	N	Y	Y
-	 *		N	Y	Y	Y
-	 *		Y	N	Y	N
-	 *		Y	Y	N	-
-	 *
-	 * IB		N	N	Y	N
-	 *		N	Y	N	-
-	 *		Y	N	Y	N
-	 *		Y	Y	N	-
-	 *
-	 * NB:	iWARP requires remote write access for the data sink
-	 *	of an RDMA_READ. IB does not.
-	 */
-	newxprt->sc_reader = rdma_read_chunk_lcl;
-	if (dev->attrs.device_cap_flags & IB_DEVICE_MEM_MGT_EXTENSIONS) {
-		newxprt->sc_frmr_pg_list_len =
-			dev->attrs.max_fast_reg_page_list_len;
-		newxprt->sc_dev_caps |= SVCRDMA_DEVCAP_FAST_REG;
-		newxprt->sc_reader = rdma_read_chunk_frmr;
-	} else
+	if (!(dev->attrs.device_cap_flags & IB_DEVICE_MEM_MGT_EXTENSIONS))
 		newxprt->sc_snd_w_inv = false;
-
-	/*
-	 * Determine if a DMA MR is required and if so, what privs are required
-	 */
-	if (!rdma_protocol_iwarp(dev, newxprt->sc_cm_id->port_num) &&
-	    !rdma_ib_or_roce(dev, newxprt->sc_cm_id->port_num))
+	if (!rdma_protocol_iwarp(dev, newxprt->sc_port_num) &&
+	    !rdma_ib_or_roce(dev, newxprt->sc_port_num))
 		goto errout;
 
-	if (rdma_protocol_iwarp(dev, newxprt->sc_cm_id->port_num))
-		newxprt->sc_dev_caps |= SVCRDMA_DEVCAP_READ_W_INV;
-
 	/* Post receive buffers */
 	for (i = 0; i < newxprt->sc_max_requests; i++) {
 		ret = svc_rdma_post_recv(newxprt, GFP_KERNEL);
@@ -1056,7 +852,6 @@ static struct svc_xprt *svc_rdma_accept(struct svc_xprt *xprt)
 	sap = (struct sockaddr *)&newxprt->sc_cm_id->route.addr.dst_addr;
 	dprintk("    remote address  : %pIS:%u\n", sap, rpc_get_port(sap));
 	dprintk("    max_sge         : %d\n", newxprt->sc_max_sge);
-	dprintk("    max_sge_rd      : %d\n", newxprt->sc_max_sge_rd);
 	dprintk("    sq_depth        : %d\n", newxprt->sc_sq_depth);
 	dprintk("    max_requests    : %d\n", newxprt->sc_max_requests);
 	dprintk("    ord             : %d\n", newxprt->sc_ord);
@@ -1117,12 +912,6 @@ static void __svc_rdma_free(struct work_struct *work)
 		pr_err("svcrdma: sc_xprt still in use? (%d)\n",
 		       kref_read(&xprt->xpt_ref));
 
-	/*
-	 * Destroy queued, but not processed read completions. Note
-	 * that this cleanup has to be done before destroying the
-	 * cm_id because the device ptr is needed to unmap the dma in
-	 * svc_rdma_put_context.
-	 */
 	while (!list_empty(&rdma->sc_read_complete_q)) {
 		struct svc_rdma_op_ctxt *ctxt;
 		ctxt = list_first_entry(&rdma->sc_read_complete_q,
@@ -1130,8 +919,6 @@ static void __svc_rdma_free(struct work_struct *work)
 		list_del(&ctxt->list);
 		svc_rdma_put_context(ctxt, 1);
 	}
-
-	/* Destroy queued, but not processed recv completions */
 	while (!list_empty(&rdma->sc_rq_dto_q)) {
 		struct svc_rdma_op_ctxt *ctxt;
 		ctxt = list_first_entry(&rdma->sc_rq_dto_q,
@@ -1151,7 +938,6 @@ static void __svc_rdma_free(struct work_struct *work)
 		xprt->xpt_bc_xprt = NULL;
 	}
 
-	rdma_dealloc_frmr_q(rdma);
 	svc_rdma_destroy_rw_ctxts(rdma);
 	svc_rdma_destroy_ctxts(rdma);
 
diff --git a/net/sunrpc/xprtrdma/transport.c b/net/sunrpc/xprtrdma/transport.c
index 62ecbccd9748..d1c458e5ec4d 100644
--- a/net/sunrpc/xprtrdma/transport.c
+++ b/net/sunrpc/xprtrdma/transport.c
@@ -684,7 +684,8 @@ xprt_rdma_free(struct rpc_task *task)
 
 	dprintk("RPC:       %s: called on 0x%p\n", __func__, req->rl_reply);
 
-	if (unlikely(!list_empty(&req->rl_registered)))
+	rpcrdma_remove_req(&r_xprt->rx_buf, req);
+	if (!list_empty(&req->rl_registered))
 		ia->ri_ops->ro_unmap_safe(r_xprt, req, !RPC_IS_ASYNC(task));
 	rpcrdma_unmap_sges(ia, req);
 	rpcrdma_buffer_put(req);
diff --git a/net/sunrpc/xprtrdma/verbs.c b/net/sunrpc/xprtrdma/verbs.c
index 3dbce9ac4327..e4171f2abe37 100644
--- a/net/sunrpc/xprtrdma/verbs.c
+++ b/net/sunrpc/xprtrdma/verbs.c
@@ -243,8 +243,6 @@ rpcrdma_conn_upcall(struct rdma_cm_id *id, struct rdma_cm_event *event)
 #if IS_ENABLED(CONFIG_SUNRPC_DEBUG)
 	struct sockaddr *sap = (struct sockaddr *)&ep->rep_remote_addr;
 #endif
-	struct ib_qp_attr *attr = &ia->ri_qp_attr;
-	struct ib_qp_init_attr *iattr = &ia->ri_qp_init_attr;
 	int connstate = 0;
 
 	switch (event->event) {
@@ -267,7 +265,8 @@ rpcrdma_conn_upcall(struct rdma_cm_id *id, struct rdma_cm_event *event)
 		break;
 	case RDMA_CM_EVENT_DEVICE_REMOVAL:
 #if IS_ENABLED(CONFIG_SUNRPC_DEBUG)
-		pr_info("rpcrdma: removing device for %pIS:%u\n",
+		pr_info("rpcrdma: removing device %s for %pIS:%u\n",
+			ia->ri_device->name,
 			sap, rpc_get_port(sap));
 #endif
 		set_bit(RPCRDMA_IAF_REMOVING, &ia->ri_flags);
@@ -282,13 +281,6 @@ rpcrdma_conn_upcall(struct rdma_cm_id *id, struct rdma_cm_event *event)
 		return 1;
 	case RDMA_CM_EVENT_ESTABLISHED:
 		connstate = 1;
-		ib_query_qp(ia->ri_id->qp, attr,
-			    IB_QP_MAX_QP_RD_ATOMIC | IB_QP_MAX_DEST_RD_ATOMIC,
-			    iattr);
-		dprintk("RPC:       %s: %d responder resources"
-			" (%d initiator)\n",
-			__func__, attr->max_dest_rd_atomic,
-			attr->max_rd_atomic);
 		rpcrdma_update_connect_private(xprt, &event->param.conn);
 		goto connected;
 	case RDMA_CM_EVENT_CONNECT_ERROR:
@@ -298,11 +290,9 @@ rpcrdma_conn_upcall(struct rdma_cm_id *id, struct rdma_cm_event *event)
 		connstate = -ENETDOWN;
 		goto connected;
 	case RDMA_CM_EVENT_REJECTED:
-#if IS_ENABLED(CONFIG_SUNRPC_DEBUG)
-		pr_info("rpcrdma: connection to %pIS:%u on %s rejected: %s\n",
-			sap, rpc_get_port(sap), ia->ri_device->name,
+		dprintk("rpcrdma: connection to %pIS:%u rejected: %s\n",
+			sap, rpc_get_port(sap),
 			rdma_reject_msg(id, event->status));
-#endif
 		connstate = -ECONNREFUSED;
 		if (event->status == IB_CM_REJ_STALE_CONN)
 			connstate = -EAGAIN;
@@ -310,37 +300,19 @@ rpcrdma_conn_upcall(struct rdma_cm_id *id, struct rdma_cm_event *event)
 	case RDMA_CM_EVENT_DISCONNECTED:
 		connstate = -ECONNABORTED;
 connected:
-		dprintk("RPC:       %s: %sconnected\n",
-					__func__, connstate > 0 ? "" : "dis");
 		atomic_set(&xprt->rx_buf.rb_credits, 1);
 		ep->rep_connected = connstate;
 		rpcrdma_conn_func(ep);
 		wake_up_all(&ep->rep_connect_wait);
 		/*FALLTHROUGH*/
 	default:
-		dprintk("RPC:       %s: %pIS:%u (ep 0x%p): %s\n",
-			__func__, sap, rpc_get_port(sap), ep,
-			rdma_event_msg(event->event));
+		dprintk("RPC:       %s: %pIS:%u on %s/%s (ep 0x%p): %s\n",
+			__func__, sap, rpc_get_port(sap),
+			ia->ri_device->name, ia->ri_ops->ro_displayname,
+			ep, rdma_event_msg(event->event));
 		break;
 	}
 
-#if IS_ENABLED(CONFIG_SUNRPC_DEBUG)
-	if (connstate == 1) {
-		int ird = attr->max_dest_rd_atomic;
-		int tird = ep->rep_remote_cma.responder_resources;
-
-		pr_info("rpcrdma: connection to %pIS:%u on %s, memreg '%s', %d credits, %d responders%s\n",
-			sap, rpc_get_port(sap),
-			ia->ri_device->name,
-			ia->ri_ops->ro_displayname,
-			xprt->rx_buf.rb_max_requests,
-			ird, ird < 4 && ird < tird / 2 ? " (low!)" : "");
-	} else if (connstate < 0) {
-		pr_info("rpcrdma: connection to %pIS:%u closed (%d)\n",
-			sap, rpc_get_port(sap), connstate);
-	}
-#endif
-
 	return 0;
 }
 
@@ -971,7 +943,6 @@ rpcrdma_create_req(struct rpcrdma_xprt *r_xprt)
 	if (req == NULL)
 		return ERR_PTR(-ENOMEM);
 
-	INIT_LIST_HEAD(&req->rl_free);
 	spin_lock(&buffer->rb_reqslock);
 	list_add(&req->rl_all, &buffer->rb_allreqs);
 	spin_unlock(&buffer->rb_reqslock);
@@ -1033,6 +1004,7 @@ rpcrdma_buffer_create(struct rpcrdma_xprt *r_xprt)
 	spin_lock_init(&buf->rb_recovery_lock);
 	INIT_LIST_HEAD(&buf->rb_mws);
 	INIT_LIST_HEAD(&buf->rb_all);
+	INIT_LIST_HEAD(&buf->rb_pending);
 	INIT_LIST_HEAD(&buf->rb_stale_mrs);
 	INIT_DELAYED_WORK(&buf->rb_refresh_worker,
 			  rpcrdma_mr_refresh_worker);
@@ -1055,7 +1027,7 @@ rpcrdma_buffer_create(struct rpcrdma_xprt *r_xprt)
 			goto out;
 		}
 		req->rl_backchannel = false;
-		list_add(&req->rl_free, &buf->rb_send_bufs);
+		list_add(&req->rl_list, &buf->rb_send_bufs);
 	}
 
 	INIT_LIST_HEAD(&buf->rb_recv_bufs);
@@ -1084,8 +1056,8 @@ rpcrdma_buffer_get_req_locked(struct rpcrdma_buffer *buf)
 	struct rpcrdma_req *req;
 
 	req = list_first_entry(&buf->rb_send_bufs,
-			       struct rpcrdma_req, rl_free);
-	list_del(&req->rl_free);
+			       struct rpcrdma_req, rl_list);
+	list_del_init(&req->rl_list);
 	return req;
 }
 
@@ -1187,6 +1159,7 @@ rpcrdma_get_mw(struct rpcrdma_xprt *r_xprt)
 
 	if (!mw)
 		goto out_nomws;
+	mw->mw_flags = 0;
 	return mw;
 
 out_nomws:
@@ -1267,7 +1240,7 @@ rpcrdma_buffer_put(struct rpcrdma_req *req)
 
 	spin_lock(&buffers->rb_lock);
 	buffers->rb_send_count--;
-	list_add_tail(&req->rl_free, &buffers->rb_send_bufs);
+	list_add_tail(&req->rl_list, &buffers->rb_send_bufs);
 	if (rep) {
 		buffers->rb_recv_count--;
 		list_add_tail(&rep->rr_list, &buffers->rb_recv_bufs);
diff --git a/net/sunrpc/xprtrdma/xprt_rdma.h b/net/sunrpc/xprtrdma/xprt_rdma.h
index 1d66acf1a723..b282d3f8cdd8 100644
--- a/net/sunrpc/xprtrdma/xprt_rdma.h
+++ b/net/sunrpc/xprtrdma/xprt_rdma.h
@@ -271,6 +271,7 @@ struct rpcrdma_mw {
 	struct scatterlist	*mw_sg;
 	int			mw_nents;
 	enum dma_data_direction	mw_dir;
+	unsigned long		mw_flags;
 	union {
 		struct rpcrdma_fmr	fmr;
 		struct rpcrdma_frmr	frmr;
@@ -282,6 +283,11 @@ struct rpcrdma_mw {
 	struct list_head	mw_all;
 };
 
+/* mw_flags */
+enum {
+	RPCRDMA_MW_F_RI		= 1,
+};
+
 /*
  * struct rpcrdma_req -- structure central to the request/reply sequence.
  *
@@ -334,7 +340,8 @@ enum {
 
 struct rpcrdma_buffer;
 struct rpcrdma_req {
-	struct list_head	rl_free;
+	struct list_head	rl_list;
+	__be32			rl_xid;
 	unsigned int		rl_mapped_sges;
 	unsigned int		rl_connect_cookie;
 	struct rpcrdma_buffer	*rl_buffer;
@@ -396,6 +403,7 @@ struct rpcrdma_buffer {
 	int			rb_send_count, rb_recv_count;
 	struct list_head	rb_send_bufs;
 	struct list_head	rb_recv_bufs;
+	struct list_head	rb_pending;
 	u32			rb_max_requests;
 	atomic_t		rb_credits;	/* most recent credit grant */
 
@@ -461,7 +469,7 @@ struct rpcrdma_memreg_ops {
 				  struct rpcrdma_mr_seg *, int, bool,
 				  struct rpcrdma_mw **);
 	void		(*ro_unmap_sync)(struct rpcrdma_xprt *,
-					 struct rpcrdma_req *);
+					 struct list_head *);
 	void		(*ro_unmap_safe)(struct rpcrdma_xprt *,
 					 struct rpcrdma_req *, bool);
 	void		(*ro_recover_mr)(struct rpcrdma_mw *);
@@ -544,6 +552,34 @@ void rpcrdma_destroy_req(struct rpcrdma_req *);
 int rpcrdma_buffer_create(struct rpcrdma_xprt *);
 void rpcrdma_buffer_destroy(struct rpcrdma_buffer *);
 
+static inline void
+rpcrdma_insert_req(struct rpcrdma_buffer *buffers, struct rpcrdma_req *req)
+{
+	spin_lock(&buffers->rb_lock);
+	if (list_empty(&req->rl_list))
+		list_add_tail(&req->rl_list, &buffers->rb_pending);
+	spin_unlock(&buffers->rb_lock);
+}
+
+static inline struct rpcrdma_req *
+rpcrdma_lookup_req_locked(struct rpcrdma_buffer *buffers, __be32 xid)
+{
+	struct rpcrdma_req *pos;
+
+	list_for_each_entry(pos, &buffers->rb_pending, rl_list)
+		if (pos->rl_xid == xid)
+			return pos;
+	return NULL;
+}
+
+static inline void
+rpcrdma_remove_req(struct rpcrdma_buffer *buffers, struct rpcrdma_req *req)
+{
+	spin_lock(&buffers->rb_lock);
+	list_del(&req->rl_list);
+	spin_unlock(&buffers->rb_lock);
+}
+
 struct rpcrdma_mw *rpcrdma_get_mw(struct rpcrdma_xprt *);
 void rpcrdma_put_mw(struct rpcrdma_xprt *, struct rpcrdma_mw *);
 struct rpcrdma_req *rpcrdma_buffer_get(struct rpcrdma_buffer *);
diff --git a/net/sunrpc/xprtsock.c b/net/sunrpc/xprtsock.c
index d5b54c020dec..4f154d388748 100644
--- a/net/sunrpc/xprtsock.c
+++ b/net/sunrpc/xprtsock.c
@@ -1624,6 +1624,8 @@ static void xs_tcp_state_change(struct sock *sk)
 		if (test_and_clear_bit(XPRT_SOCK_CONNECTING,
 					&transport->sock_state))
 			xprt_clear_connecting(xprt);
+		if (sk->sk_err)
+			xprt_wake_pending_tasks(xprt, -sk->sk_err);
 		xs_sock_mark_closed(xprt);
 	}
  out:
diff --git a/net/tipc/bearer.c b/net/tipc/bearer.c
index d174ee3254ee..767e0537dde5 100644
--- a/net/tipc/bearer.c
+++ b/net/tipc/bearer.c
@@ -596,7 +596,7 @@ static int tipc_l2_rcv_msg(struct sk_buff *skb, struct net_device *dev,
 	rcu_read_lock();
 	b = rcu_dereference_rtnl(dev->tipc_ptr);
 	if (likely(b && test_bit(0, &b->up) &&
-		   (skb->pkt_type <= PACKET_BROADCAST))) {
+		   (skb->pkt_type <= PACKET_MULTICAST))) {
 		skb->next = NULL;
 		tipc_rcv(dev_net(dev), skb, b);
 		rcu_read_unlock();
diff --git a/net/tipc/msg.c b/net/tipc/msg.c
index ab3087687a32..dcd90e6fa7c3 100644
--- a/net/tipc/msg.c
+++ b/net/tipc/msg.c
@@ -513,6 +513,7 @@ bool tipc_msg_reverse(u32 own_node,  struct sk_buff **skb, int err)
 
 	/* Now reverse the concerned fields */
 	msg_set_errcode(hdr, err);
+	msg_set_non_seq(hdr, 0);
 	msg_set_origport(hdr, msg_destport(&ohdr));
 	msg_set_destport(hdr, msg_origport(&ohdr));
 	msg_set_destnode(hdr, msg_prevnode(&ohdr));
diff --git a/net/tipc/netlink_compat.c b/net/tipc/netlink_compat.c
index 9bfe886ab330..750949dfc1d7 100644
--- a/net/tipc/netlink_compat.c
+++ b/net/tipc/netlink_compat.c
@@ -258,13 +258,15 @@ static int tipc_nl_compat_dumpit(struct tipc_nl_compat_cmd_dump *cmd,
 	arg = nlmsg_new(0, GFP_KERNEL);
 	if (!arg) {
 		kfree_skb(msg->rep);
+		msg->rep = NULL;
 		return -ENOMEM;
 	}
 
 	err = __tipc_nl_compat_dumpit(cmd, msg, arg);
-	if (err)
+	if (err) {
 		kfree_skb(msg->rep);
-
+		msg->rep = NULL;
+	}
 	kfree_skb(arg);
 
 	return err;
diff --git a/net/tipc/node.c b/net/tipc/node.c
index aeef8011ac7d..9b4dcb6a16b5 100644
--- a/net/tipc/node.c
+++ b/net/tipc/node.c
@@ -1455,10 +1455,8 @@ static bool tipc_node_check_state(struct tipc_node *n, struct sk_buff *skb,
 	/* Initiate synch mode if applicable */
 	if ((usr == TUNNEL_PROTOCOL) && (mtyp == SYNCH_MSG) && (oseqno == 1)) {
 		syncpt = iseqno + exp_pkts - 1;
-		if (!tipc_link_is_up(l)) {
-			tipc_link_fsm_evt(l, LINK_ESTABLISH_EVT);
+		if (!tipc_link_is_up(l))
 			__tipc_node_link_up(n, bearer_id, xmitq);
-		}
 		if (n->state == SELF_UP_PEER_UP) {
 			n->sync_point = syncpt;
 			tipc_link_fsm_evt(l, LINK_SYNCH_BEGIN_EVT);
diff --git a/net/unix/af_unix.c b/net/unix/af_unix.c
index 7b52a380d710..be8982b4f8c0 100644
--- a/net/unix/af_unix.c
+++ b/net/unix/af_unix.c
@@ -2304,10 +2304,7 @@ static int unix_stream_read_generic(struct unix_stream_read_state *state,
 	 */
 	mutex_lock(&u->iolock);
 
-	if (flags & MSG_PEEK)
-		skip = sk_peek_offset(sk, flags);
-	else
-		skip = 0;
+	skip = max(sk_peek_offset(sk, flags), 0);
 
 	do {
 		int chunk;
diff --git a/samples/bpf/Makefile b/samples/bpf/Makefile
index 9c650589e80f..87246be6feb8 100644
--- a/samples/bpf/Makefile
+++ b/samples/bpf/Makefile
@@ -207,6 +207,7 @@ $(obj)/tracex5_kern.o: $(obj)/syscall_nrs.h
 # useless for BPF samples.
 $(obj)/%.o: $(src)/%.c
 	$(CLANG) $(NOSTDINC_FLAGS) $(LINUXINCLUDE) $(EXTRA_CFLAGS) -I$(obj) \
+		-I$(srctree)/tools/testing/selftests/bpf/ \
 		-D__KERNEL__ -D__ASM_SYSREG_H -Wno-unused-value -Wno-pointer-sign \
 		-Wno-compare-distinct-pointer-types \
 		-Wno-gnu-variable-sized-type-not-at-end \
diff --git a/samples/bpf/tcbpf2_kern.c b/samples/bpf/tcbpf2_kern.c
index 9c823a609e75..270edcc149a1 100644
--- a/samples/bpf/tcbpf2_kern.c
+++ b/samples/bpf/tcbpf2_kern.c
@@ -147,9 +147,9 @@ int _geneve_set_tunnel(struct __sk_buff *skb)
 	__builtin_memset(&gopt, 0x0, sizeof(gopt));
 	gopt.opt_class = 0x102; /* Open Virtual Networking (OVN) */
 	gopt.type = 0x08;
-	gopt.r1 = 1;
+	gopt.r1 = 0;
 	gopt.r2 = 0;
-	gopt.r3 = 1;
+	gopt.r3 = 0;
 	gopt.length = 2; /* 4-byte multiple */
 	*(int *) &gopt.opt_data = 0xdeadbeef;
 
diff --git a/samples/bpf/test_tunnel_bpf.sh b/samples/bpf/test_tunnel_bpf.sh
index 1ff634f187b7..a70d2ea90313 100755
--- a/samples/bpf/test_tunnel_bpf.sh
+++ b/samples/bpf/test_tunnel_bpf.sh
@@ -149,6 +149,7 @@ function cleanup {
 	ip link del veth1
 	ip link del ipip11
 	ip link del gretap11
+	ip link del vxlan11
 	ip link del geneve11
 	pkill tcpdump
 	pkill cat
diff --git a/samples/kfifo/dma-example.c b/samples/kfifo/dma-example.c
index aa243db93f01..be0d4a5fdf53 100644
--- a/samples/kfifo/dma-example.c
+++ b/samples/kfifo/dma-example.c
@@ -75,8 +75,8 @@ static int __init example_init(void)
 	for (i = 0; i < nents; i++) {
 		printk(KERN_INFO
 		"sg[%d] -> "
-		"page_link 0x%.8lx offset 0x%.8x length 0x%.8x\n",
-			i, sg[i].page_link, sg[i].offset, sg[i].length);
+		"page %p offset 0x%.8x length 0x%.8x\n",
+			i, sg_page(&sg[i]), sg[i].offset, sg[i].length);
 
 		if (sg_is_last(&sg[i]))
 			break;
@@ -104,8 +104,8 @@ static int __init example_init(void)
 	for (i = 0; i < nents; i++) {
 		printk(KERN_INFO
 		"sg[%d] -> "
-		"page_link 0x%.8lx offset 0x%.8x length 0x%.8x\n",
-			i, sg[i].page_link, sg[i].offset, sg[i].length);
+		"page %p offset 0x%.8x length 0x%.8x\n",
+			i, sg_page(&sg[i]), sg[i].offset, sg[i].length);
 
 		if (sg_is_last(&sg[i]))
 			break;
diff --git a/scripts/Makefile.headersinst b/scripts/Makefile.headersinst
index c583a1e1bd3c..343d586e566e 100644
--- a/scripts/Makefile.headersinst
+++ b/scripts/Makefile.headersinst
@@ -23,15 +23,12 @@ subdirs       := $(patsubst $(srcdir)/%/,%,\
 		 $(filter-out $(srcdir)/,\
 		 $(sort $(dir $(wildcard $(srcdir)/*/)))))
 
-# caller may set destination dir (when installing to asm/)
-_dst          := $(if $(dst),$(dst),$(obj))
-
 # Recursion
 __headers: $(subdirs)
 
 .PHONY: $(subdirs)
 $(subdirs):
-	$(Q)$(MAKE) $(hdr-inst)=$(obj)/$@ dst=$(_dst)/$@
+	$(Q)$(MAKE) $(hdr-inst)=$(obj)/$@ dst=$(dst)/$@
 
 # Skip header install/check for include/uapi and arch/$(hdr-arch)/include/uapi.
 # We have only sub-directories there.
@@ -39,21 +36,12 @@ skip-inst := $(if $(filter %/uapi,$(obj)),1)
 
 ifeq ($(skip-inst),)
 
-# generated header directory
-gen := $(if $(gen),$(gen),$(subst include/,include/generated/,$(obj)))
-
 # Kbuild file is optional
 kbuild-file := $(srctree)/$(obj)/Kbuild
 -include $(kbuild-file)
 
-old-kbuild-file := $(srctree)/$(subst uapi/,,$(obj))/Kbuild
-ifneq ($(wildcard $(old-kbuild-file)),)
-include $(old-kbuild-file)
-endif
-
-installdir    := $(INSTALL_HDR_PATH)/$(subst uapi/,,$(_dst))
-
-gendir        := $(objtree)/$(gen)
+installdir    := $(INSTALL_HDR_PATH)/$(dst)
+gendir        := $(objtree)/$(subst include/,include/generated/,$(obj))
 header-files  := $(notdir $(wildcard $(srcdir)/*.h))
 header-files  += $(notdir $(wildcard $(srcdir)/*.agh))
 header-files  := $(filter-out $(no-export-headers), $(header-files))
@@ -64,14 +52,8 @@ genhdr-files  := $(filter-out $(header-files), $(genhdr-files))
 install-file  := $(installdir)/.install
 check-file    := $(installdir)/.check
 
-# generic-y list all files an architecture uses from asm-generic
-# Use this to build a list of headers which require a wrapper
-generic-files := $(notdir $(wildcard $(srctree)/include/uapi/asm-generic/*.h))
-wrapper-files := $(filter $(generic-files), $(generic-y))
-wrapper-files := $(filter-out $(header-files), $(wrapper-files))
-
 # all headers files for this dir
-all-files     := $(header-files) $(genhdr-files) $(wrapper-files)
+all-files     := $(header-files) $(genhdr-files)
 output-files  := $(addprefix $(installdir)/, $(all-files))
 
 ifneq ($(mandatory-y),)
@@ -95,9 +77,6 @@ quiet_cmd_install = INSTALL $(printdir) ($(words $(all-files))\
       cmd_install = \
         $(CONFIG_SHELL) $< $(installdir) $(srcdir) $(header-files); \
         $(CONFIG_SHELL) $< $(installdir) $(gendir) $(genhdr-files); \
-        for F in $(wrapper-files); do                                   \
-                echo "\#include <asm-generic/$$F>" > $(installdir)/$$F;    \
-        done;                                                           \
         touch $@
 
 quiet_cmd_remove = REMOVE  $(unwanted)
diff --git a/scripts/checkpatch.pl b/scripts/checkpatch.pl
index 8f940c09918f..2287a0bca863 100755
--- a/scripts/checkpatch.pl
+++ b/scripts/checkpatch.pl
@@ -5576,10 +5576,18 @@ sub process {
 			    "architecture specific defines should be avoided\n" .  $herecurr);
 		}
 
+# check that the storage class is not after a type
+		if ($line =~ /\b($Type)\s+($Storage)\b/) {
+			WARN("STORAGE_CLASS",
+			     "storage class '$2' should be located before type '$1'\n" . $herecurr);
+		}
 # Check that the storage class is at the beginning of a declaration
-		if ($line =~ /\b$Storage\b/ && $line !~ /^.\s*$Storage\b/) {
+		if ($line =~ /\b$Storage\b/ &&
+		    $line !~ /^.\s*$Storage/ &&
+		    $line =~ /^.\s*(.+?)\$Storage\s/ &&
+		    $1 !~ /[\,\)]\s*$/) {
 			WARN("STORAGE_CLASS",
-			     "storage class should be at the beginning of the declaration\n" . $herecurr)
+			     "storage class should be at the beginning of the declaration\n" . $herecurr);
 		}
 
 # check the location of the inline attribute, that it is between
diff --git a/scripts/dtc/dtx_diff b/scripts/dtc/dtx_diff
index fb86f3899e16..f9a3d8d23c64 100755
--- a/scripts/dtc/dtx_diff
+++ b/scripts/dtc/dtx_diff
@@ -321,7 +321,7 @@ fi
 cpp_flags="\
 	-nostdinc                                  \
 	-I${srctree}/arch/${ARCH}/boot/dts         \
-	-I${srctree}/arch/${ARCH}/boot/dts/include \
+	-I${srctree}/scripts/dtc/include-prefixes  \
 	-I${srctree}/drivers/of/testcase-data      \
 	-undef -D__DTS__"
 
diff --git a/scripts/gdb/linux/constants.py.in b/scripts/gdb/linux/constants.py.in
index 7986f4e0da12..7aad82406422 100644
--- a/scripts/gdb/linux/constants.py.in
+++ b/scripts/gdb/linux/constants.py.in
@@ -14,6 +14,7 @@
 
 #include <linux/fs.h>
 #include <linux/mount.h>
+#include <linux/of_fdt.h>
 
 /* We need to stringify expanded macros so that they can be parsed */
 
@@ -50,3 +51,9 @@ LX_VALUE(MNT_NOEXEC)
 LX_VALUE(MNT_NOATIME)
 LX_VALUE(MNT_NODIRATIME)
 LX_VALUE(MNT_RELATIME)
+
+/* linux/of_fdt.h> */
+LX_VALUE(OF_DT_HEADER)
+
+/* Kernel Configs */
+LX_CONFIG(CONFIG_OF)
diff --git a/scripts/gdb/linux/dmesg.py b/scripts/gdb/linux/dmesg.py
index 5afd1098e33a..6d2e09a2ad2f 100644
--- a/scripts/gdb/linux/dmesg.py
+++ b/scripts/gdb/linux/dmesg.py
@@ -12,6 +12,7 @@
 #
 
 import gdb
+import sys
 
 from linux import utils
 
@@ -24,7 +25,7 @@ class LxDmesg(gdb.Command):
 
     def invoke(self, arg, from_tty):
         log_buf_addr = int(str(gdb.parse_and_eval(
-            "'printk.c'::log_buf")).split()[0], 16)
+            "(void *)'printk.c'::log_buf")).split()[0], 16)
         log_first_idx = int(gdb.parse_and_eval("'printk.c'::log_first_idx"))
         log_next_idx = int(gdb.parse_and_eval("'printk.c'::log_next_idx"))
         log_buf_len = int(gdb.parse_and_eval("'printk.c'::log_buf_len"))
@@ -52,13 +53,19 @@ class LxDmesg(gdb.Command):
                 continue
 
             text_len = utils.read_u16(log_buf[pos + 10:pos + 12])
-            text = log_buf[pos + 16:pos + 16 + text_len].decode()
+            text = log_buf[pos + 16:pos + 16 + text_len].decode(
+                encoding='utf8', errors='replace')
             time_stamp = utils.read_u64(log_buf[pos:pos + 8])
 
             for line in text.splitlines():
-                gdb.write("[{time:12.6f}] {line}\n".format(
+                msg = u"[{time:12.6f}] {line}\n".format(
                     time=time_stamp / 1000000000.0,
-                    line=line))
+                    line=line)
+                # With python2 gdb.write will attempt to convert unicode to
+                # ascii and might fail so pass an utf8-encoded str instead.
+                if sys.hexversion < 0x03000000:
+                    msg = msg.encode(encoding='utf8', errors='replace')
+                gdb.write(msg)
 
             pos += length
 
diff --git a/scripts/gdb/linux/proc.py b/scripts/gdb/linux/proc.py
index 38b1f09d1cd9..086d27223c0c 100644
--- a/scripts/gdb/linux/proc.py
+++ b/scripts/gdb/linux/proc.py
@@ -16,6 +16,7 @@ from linux import constants
 from linux import utils
 from linux import tasks
 from linux import lists
+from struct import *
 
 
 class LxCmdLine(gdb.Command):
@@ -195,3 +196,75 @@ values of that process namespace"""
                         info_opts(MNT_INFO, m_flags)))
 
 LxMounts()
+
+
+class LxFdtDump(gdb.Command):
+    """Output Flattened Device Tree header and dump FDT blob to the filename
+       specified as the command argument. Equivalent to
+       'cat /proc/fdt > fdtdump.dtb' on a running target"""
+
+    def __init__(self):
+        super(LxFdtDump, self).__init__("lx-fdtdump", gdb.COMMAND_DATA,
+                                        gdb.COMPLETE_FILENAME)
+
+    def fdthdr_to_cpu(self, fdt_header):
+
+        fdt_header_be = ">IIIIIII"
+        fdt_header_le = "<IIIIIII"
+
+        if utils.get_target_endianness() == 1:
+            output_fmt = fdt_header_le
+        else:
+            output_fmt = fdt_header_be
+
+        return unpack(output_fmt, pack(fdt_header_be,
+                                       fdt_header['magic'],
+                                       fdt_header['totalsize'],
+                                       fdt_header['off_dt_struct'],
+                                       fdt_header['off_dt_strings'],
+                                       fdt_header['off_mem_rsvmap'],
+                                       fdt_header['version'],
+                                       fdt_header['last_comp_version']))
+
+    def invoke(self, arg, from_tty):
+
+        if not constants.LX_CONFIG_OF:
+            raise gdb.GdbError("Kernel not compiled with CONFIG_OF\n")
+
+        if len(arg) == 0:
+            filename = "fdtdump.dtb"
+        else:
+            filename = arg
+
+        py_fdt_header_ptr = gdb.parse_and_eval(
+            "(const struct fdt_header *) initial_boot_params")
+        py_fdt_header = py_fdt_header_ptr.dereference()
+
+        fdt_header = self.fdthdr_to_cpu(py_fdt_header)
+
+        if fdt_header[0] != constants.LX_OF_DT_HEADER:
+            raise gdb.GdbError("No flattened device tree magic found\n")
+
+        gdb.write("fdt_magic:         0x{:02X}\n".format(fdt_header[0]))
+        gdb.write("fdt_totalsize:     0x{:02X}\n".format(fdt_header[1]))
+        gdb.write("off_dt_struct:     0x{:02X}\n".format(fdt_header[2]))
+        gdb.write("off_dt_strings:    0x{:02X}\n".format(fdt_header[3]))
+        gdb.write("off_mem_rsvmap:    0x{:02X}\n".format(fdt_header[4]))
+        gdb.write("version:           {}\n".format(fdt_header[5]))
+        gdb.write("last_comp_version: {}\n".format(fdt_header[6]))
+
+        inf = gdb.inferiors()[0]
+        fdt_buf = utils.read_memoryview(inf, py_fdt_header_ptr,
+                                        fdt_header[1]).tobytes()
+
+        try:
+            f = open(filename, 'wb')
+        except:
+            raise gdb.GdbError("Could not open file to dump fdt")
+
+        f.write(fdt_buf)
+        f.close()
+
+        gdb.write("Dumped fdt blob to " + filename + "\n")
+
+LxFdtDump()
diff --git a/scripts/get_maintainer.pl b/scripts/get_maintainer.pl
index 3bd5f4f30235..bc443201d3ef 100755
--- a/scripts/get_maintainer.pl
+++ b/scripts/get_maintainer.pl
@@ -18,6 +18,7 @@ my $V = '0.26';
 
 use Getopt::Long qw(:config no_auto_abbrev);
 use Cwd;
+use File::Find;
 
 my $cur_path = fastgetcwd() . '/';
 my $lk_path = "./";
@@ -58,6 +59,7 @@ my $from_filename = 0;
 my $pattern_depth = 0;
 my $version = 0;
 my $help = 0;
+my $find_maintainer_files = 0;
 
 my $vcs_used = 0;
 
@@ -249,6 +251,7 @@ if (!GetOptions(
 		'sections!' => \$sections,
 		'fe|file-emails!' => \$file_emails,
 		'f|file' => \$from_filename,
+		'find-maintainer-files' => \$find_maintainer_files,
 		'v|version' => \$version,
 		'h|help|usage' => \$help,
 		)) {
@@ -307,36 +310,74 @@ if (!top_of_kernel_tree($lk_path)) {
 
 my @typevalue = ();
 my %keyword_hash;
+my @mfiles = ();
 
-open (my $maint, '<', "${lk_path}MAINTAINERS")
-    or die "$P: Can't open MAINTAINERS: $!\n";
-while (<$maint>) {
-    my $line = $_;
-
-    if ($line =~ m/^([A-Z]):\s*(.*)/) {
-	my $type = $1;
-	my $value = $2;
-
-	##Filename pattern matching
-	if ($type eq "F" || $type eq "X") {
-	    $value =~ s@\.@\\\.@g;       ##Convert . to \.
-	    $value =~ s/\*/\.\*/g;       ##Convert * to .*
-	    $value =~ s/\?/\./g;         ##Convert ? to .
-	    ##if pattern is a directory and it lacks a trailing slash, add one
-	    if ((-d $value)) {
-		$value =~ s@([^/])$@$1/@;
+sub read_maintainer_file {
+    my ($file) = @_;
+
+    open (my $maint, '<', "$file")
+	or die "$P: Can't open MAINTAINERS file '$file': $!\n";
+    while (<$maint>) {
+	my $line = $_;
+
+	if ($line =~ m/^([A-Z]):\s*(.*)/) {
+	    my $type = $1;
+	    my $value = $2;
+
+	    ##Filename pattern matching
+	    if ($type eq "F" || $type eq "X") {
+		$value =~ s@\.@\\\.@g;       ##Convert . to \.
+		$value =~ s/\*/\.\*/g;       ##Convert * to .*
+		$value =~ s/\?/\./g;         ##Convert ? to .
+		##if pattern is a directory and it lacks a trailing slash, add one
+		if ((-d $value)) {
+		    $value =~ s@([^/])$@$1/@;
+		}
+	    } elsif ($type eq "K") {
+		$keyword_hash{@typevalue} = $value;
 	    }
-	} elsif ($type eq "K") {
-	    $keyword_hash{@typevalue} = $value;
+	    push(@typevalue, "$type:$value");
+	} elsif (!(/^\s*$/ || /^\s*\#/)) {
+	    $line =~ s/\n$//g;
+	    push(@typevalue, $line);
 	}
-	push(@typevalue, "$type:$value");
-    } elsif (!/^(\s)*$/) {
-	$line =~ s/\n$//g;
-	push(@typevalue, $line);
     }
+    close($maint);
+}
+
+sub find_is_maintainer_file {
+    my ($file) = $_;
+    return if ($file !~ m@/MAINTAINERS$@);
+    $file = $File::Find::name;
+    return if (! -f $file);
+    push(@mfiles, $file);
 }
-close($maint);
 
+sub find_ignore_git {
+    return grep { $_ !~ /^\.git$/; } @_;
+}
+
+if (-d "${lk_path}MAINTAINERS") {
+    opendir(DIR, "${lk_path}MAINTAINERS") or die $!;
+    my @files = readdir(DIR);
+    closedir(DIR);
+    foreach my $file (@files) {
+	push(@mfiles, "${lk_path}MAINTAINERS/$file") if ($file !~ /^\./);
+    }
+}
+
+if ($find_maintainer_files) {
+    find( { wanted => \&find_is_maintainer_file,
+	    preprocess => \&find_ignore_git,
+	    no_chdir => 1,
+	}, "${lk_path}");
+} else {
+    push(@mfiles, "${lk_path}MAINTAINERS") if -f "${lk_path}MAINTAINERS";
+}
+
+foreach my $file (@mfiles) {
+    read_maintainer_file("$file");
+}
 
 #
 # Read mail address map
@@ -873,7 +914,7 @@ sub top_of_kernel_tree {
     if (   (-f "${lk_path}COPYING")
 	&& (-f "${lk_path}CREDITS")
 	&& (-f "${lk_path}Kbuild")
-	&& (-f "${lk_path}MAINTAINERS")
+	&& (-e "${lk_path}MAINTAINERS")
 	&& (-f "${lk_path}Makefile")
 	&& (-f "${lk_path}README")
 	&& (-d "${lk_path}Documentation")
diff --git a/scripts/mod/modpost.c b/scripts/mod/modpost.c
index 30d752a4a6a6..48397feb08fb 100644
--- a/scripts/mod/modpost.c
+++ b/scripts/mod/modpost.c
@@ -2126,6 +2126,7 @@ static void add_header(struct buffer *b, struct module *mod)
 	buf_printf(b, "#include <linux/compiler.h>\n");
 	buf_printf(b, "\n");
 	buf_printf(b, "MODULE_INFO(vermagic, VERMAGIC_STRING);\n");
+	buf_printf(b, "MODULE_INFO(name, KBUILD_MODNAME);\n");
 	buf_printf(b, "\n");
 	buf_printf(b, "__visible struct module __this_module\n");
 	buf_printf(b, "__attribute__((section(\".gnu.linkonce.this_module\"))) = {\n");
diff --git a/scripts/parse-maintainers.pl b/scripts/parse-maintainers.pl
new file mode 100644
index 000000000000..e40b53db7f9f
--- /dev/null
+++ b/scripts/parse-maintainers.pl
@@ -0,0 +1,128 @@
+#!/usr/bin/perl -w
+
+use strict;
+
+my $P = $0;
+
+# sort comparison functions
+sub by_category($$) {
+    my ($a, $b) = @_;
+
+    $a = uc $a;
+    $b = uc $b;
+
+    # This always sorts last
+    $a =~ s/THE REST/ZZZZZZ/g;
+    $b =~ s/THE REST/ZZZZZZ/g;
+
+    return $a cmp $b;
+}
+
+sub by_pattern($$) {
+    my ($a, $b) = @_;
+    my $preferred_order = 'MRPLSWTQBCFXNK';
+
+    my $a1 = uc(substr($a, 0, 1));
+    my $b1 = uc(substr($b, 0, 1));
+
+    my $a_index = index($preferred_order, $a1);
+    my $b_index = index($preferred_order, $b1);
+
+    $a_index = 1000 if ($a_index == -1);
+    $b_index = 1000 if ($b_index == -1);
+
+    if (($a1 =~ /^F$/ && $b1 =~ /^F$/) ||
+	($a1 =~ /^X$/ && $b1 =~ /^X$/)) {
+	return $a cmp $b;
+    }
+
+    if ($a_index < $b_index) {
+	return -1;
+    } elsif ($a_index == $b_index) {
+	return 0;
+    } else {
+	return 1;
+    }
+}
+
+sub trim {
+    my $s = shift;
+    $s =~ s/\s+$//;
+    $s =~ s/^\s+//;
+    return $s;
+}
+
+sub alpha_output {
+    my ($hashref, $filename) = (@_);
+
+    open(my $file, '>', "$filename") or die "$P: $filename: open failed - $!\n";
+    foreach my $key (sort by_category keys %$hashref) {
+	if ($key eq " ") {
+	    chomp $$hashref{$key};
+	    print $file $$hashref{$key};
+	} else {
+	    print $file "\n" . $key . "\n";
+	    foreach my $pattern (sort by_pattern split('\n', %$hashref{$key})) {
+		print $file ($pattern . "\n");
+	    }
+	}
+    }
+    close($file);
+}
+
+sub file_input {
+    my ($hashref, $filename) = (@_);
+
+    my $lastline = "";
+    my $case = " ";
+    $$hashref{$case} = "";
+
+    open(my $file, '<', "$filename") or die "$P: $filename: open failed - $!\n";
+
+    while (<$file>) {
+        my $line = $_;
+
+        # Pattern line?
+        if ($line =~ m/^([A-Z]):\s*(.*)/) {
+            $line = $1 . ":\t" . trim($2) . "\n";
+            if ($lastline eq "") {
+                $$hashref{$case} = $$hashref{$case} . $line;
+                next;
+            }
+            $case = trim($lastline);
+            exists $$hashref{$case} and die "Header '$case' already exists";
+            $$hashref{$case} = $line;
+            $lastline = "";
+            next;
+        }
+
+        if ($case eq " ") {
+            $$hashref{$case} = $$hashref{$case} . $lastline;
+            $lastline = $line;
+            next;
+        }
+        trim($lastline) eq "" or die ("Odd non-pattern line '$lastline' for '$case'");
+        $lastline = $line;
+    }
+    $$hashref{$case} = $$hashref{$case} . $lastline;
+    close($file);
+}
+
+my %hash;
+my %new_hash;
+
+file_input(\%hash, "MAINTAINERS");
+
+foreach my $type (@ARGV) {
+    foreach my $key (keys %hash) {
+	if ($key =~ /$type/ || $hash{$key} =~ /$type/) {
+	    $new_hash{$key} = $hash{$key};
+	    delete $hash{$key};
+	}
+    }
+}
+
+alpha_output(\%hash, "MAINTAINERS.new");
+alpha_output(\%new_hash, "SECTION.new");
+
+exit(0);
diff --git a/security/Kconfig b/security/Kconfig
index d540bfe73190..e8e449444e65 100644
--- a/security/Kconfig
+++ b/security/Kconfig
@@ -163,6 +163,13 @@ config HARDENED_USERCOPY_PAGESPAN
 	  been removed. This config is intended to be used only while
 	  trying to find such users.
 
+config FORTIFY_SOURCE
+	bool "Harden common str/mem functions against buffer overflows"
+	depends on ARCH_HAS_FORTIFY_SOURCE
+	help
+	  Detect overflows of buffers in common string and memory functions
+	  where the compiler can determine and validate the buffer sizes.
+
 config STATIC_USERMODEHELPER
 	bool "Force all usermode helper calls through a single binary"
 	help
diff --git a/security/keys/compat_dh.c b/security/keys/compat_dh.c
index a6a659b6bcb6..aa6b34cafe5f 100644
--- a/security/keys/compat_dh.c
+++ b/security/keys/compat_dh.c
@@ -33,6 +33,8 @@ long compat_keyctl_dh_compute(struct keyctl_dh_params __user *params,
 	kdfcopy.hashname = compat_ptr(compat_kdfcopy.hashname);
 	kdfcopy.otherinfo = compat_ptr(compat_kdfcopy.otherinfo);
 	kdfcopy.otherinfolen = compat_kdfcopy.otherinfolen;
+	memcpy(kdfcopy.__spare, compat_kdfcopy.__spare,
+	       sizeof(kdfcopy.__spare));
 
 	return __keyctl_dh_compute(params, buffer, buflen, &kdfcopy);
 }
diff --git a/security/keys/dh.c b/security/keys/dh.c
index 4755d4b4f945..d1ea9f325f94 100644
--- a/security/keys/dh.c
+++ b/security/keys/dh.c
@@ -266,6 +266,11 @@ long __keyctl_dh_compute(struct keyctl_dh_params __user *params,
 	if (kdfcopy) {
 		char *hashname;
 
+		if (memchr_inv(kdfcopy->__spare, 0, sizeof(kdfcopy->__spare))) {
+			ret = -EINVAL;
+			goto out1;
+		}
+
 		if (buflen > KEYCTL_KDF_MAX_OUTPUT_LEN ||
 		    kdfcopy->otherinfolen > KEYCTL_KDF_MAX_OI_LEN) {
 			ret = -EMSGSIZE;
diff --git a/security/keys/internal.h b/security/keys/internal.h
index 91bc6214ae57..1c02c6547038 100644
--- a/security/keys/internal.h
+++ b/security/keys/internal.h
@@ -198,7 +198,7 @@ struct request_key_auth {
 	void			*callout_info;
 	size_t			callout_len;
 	pid_t			pid;
-};
+} __randomize_layout;
 
 extern struct key_type key_type_request_key_auth;
 extern struct key *request_key_auth_new(struct key *target,
diff --git a/sound/core/pcm_native.c b/sound/core/pcm_native.c
index b3d5bed75029..22995cb3bd44 100644
--- a/sound/core/pcm_native.c
+++ b/sound/core/pcm_native.c
@@ -238,10 +238,8 @@ static bool hw_support_mmap(struct snd_pcm_substream *substream)
 {
 	if (!(substream->runtime->hw.info & SNDRV_PCM_INFO_MMAP))
 		return false;
-	/* check architectures that return -EINVAL from dma_mmap_coherent() */
-	/* FIXME: this should be some global flag */
-#if defined(CONFIG_C6X) || defined(CONFIG_FRV) || defined(CONFIG_MN10300) ||\
-	defined(CONFIG_PARISC) || defined(CONFIG_XTENSA)
+	/* architecture supports dma_mmap_coherent()? */
+#if defined(CONFIG_ARCH_NO_COHERENT_DMA_MMAP) || !defined(CONFIG_HAS_DMA)
 	if (!substream->ops->mmap &&
 	    substream->dma_buffer.dev.type == SNDRV_DMA_TYPE_DEV)
 		return false;
@@ -3502,7 +3500,7 @@ int snd_pcm_lib_default_mmap(struct snd_pcm_substream *substream,
 	}
 #endif /* CONFIG_GENERIC_ALLOCATOR */
 #ifndef CONFIG_X86 /* for avoiding warnings arch/x86/mm/pat.c */
-	if (!substream->ops->page &&
+	if (IS_ENABLED(CONFIG_HAS_DMA) && !substream->ops->page &&
 	    substream->dma_buffer.dev.type == SNDRV_DMA_TYPE_DEV)
 		return dma_mmap_coherent(substream->dma_buffer.dev.dev,
 					 area,
diff --git a/sound/core/seq/Kconfig b/sound/core/seq/Kconfig
index a536760a94c2..45c1336c6597 100644
--- a/sound/core/seq/Kconfig
+++ b/sound/core/seq/Kconfig
@@ -47,10 +47,10 @@ config SND_SEQ_HRTIMER_DEFAULT
 	  timer.
 
 config SND_SEQ_MIDI_EVENT
-	def_tristate SND_RAWMIDI
+	tristate
 
 config SND_SEQ_MIDI
-	tristate
+	def_tristate SND_RAWMIDI
 	select SND_SEQ_MIDI_EVENT
 
 config SND_SEQ_MIDI_EMUL
diff --git a/sound/core/seq/seq_clientmgr.c b/sound/core/seq/seq_clientmgr.c
index 272c55fe17c8..ea2d0ae85bd3 100644
--- a/sound/core/seq/seq_clientmgr.c
+++ b/sound/core/seq/seq_clientmgr.c
@@ -1502,16 +1502,11 @@ static int snd_seq_ioctl_unsubscribe_port(struct snd_seq_client *client,
 static int snd_seq_ioctl_create_queue(struct snd_seq_client *client, void *arg)
 {
 	struct snd_seq_queue_info *info = arg;
-	int result;
 	struct snd_seq_queue *q;
 
-	result = snd_seq_queue_alloc(client->number, info->locked, info->flags);
-	if (result < 0)
-		return result;
-
-	q = queueptr(result);
-	if (q == NULL)
-		return -EINVAL;
+	q = snd_seq_queue_alloc(client->number, info->locked, info->flags);
+	if (IS_ERR(q))
+		return PTR_ERR(q);
 
 	info->queue = q->queue;
 	info->locked = q->locked;
@@ -1521,7 +1516,7 @@ static int snd_seq_ioctl_create_queue(struct snd_seq_client *client, void *arg)
 	if (!info->name[0])
 		snprintf(info->name, sizeof(info->name), "Queue-%d", q->queue);
 	strlcpy(q->name, info->name, sizeof(q->name));
-	queuefree(q);
+	snd_use_lock_free(&q->use_lock);
 
 	return 0;
 }
diff --git a/sound/core/seq/seq_queue.c b/sound/core/seq/seq_queue.c
index 450c5187eecb..79e0c5604ef8 100644
--- a/sound/core/seq/seq_queue.c
+++ b/sound/core/seq/seq_queue.c
@@ -184,22 +184,26 @@ void __exit snd_seq_queues_delete(void)
 static void queue_use(struct snd_seq_queue *queue, int client, int use);
 
 /* allocate a new queue -
- * return queue index value or negative value for error
+ * return pointer to new queue or ERR_PTR(-errno) for error
+ * The new queue's use_lock is set to 1. It is the caller's responsibility to
+ * call snd_use_lock_free(&q->use_lock).
  */
-int snd_seq_queue_alloc(int client, int locked, unsigned int info_flags)
+struct snd_seq_queue *snd_seq_queue_alloc(int client, int locked, unsigned int info_flags)
 {
 	struct snd_seq_queue *q;
 
 	q = queue_new(client, locked);
 	if (q == NULL)
-		return -ENOMEM;
+		return ERR_PTR(-ENOMEM);
 	q->info_flags = info_flags;
 	queue_use(q, client, 1);
+	snd_use_lock_use(&q->use_lock);
 	if (queue_list_add(q) < 0) {
+		snd_use_lock_free(&q->use_lock);
 		queue_delete(q);
-		return -ENOMEM;
+		return ERR_PTR(-ENOMEM);
 	}
-	return q->queue;
+	return q;
 }
 
 /* delete a queue - queue must be owned by the client */
diff --git a/sound/core/seq/seq_queue.h b/sound/core/seq/seq_queue.h
index 30c8111477f6..719093489a2c 100644
--- a/sound/core/seq/seq_queue.h
+++ b/sound/core/seq/seq_queue.h
@@ -71,7 +71,7 @@ void snd_seq_queues_delete(void);
 
 
 /* create new queue (constructor) */
-int snd_seq_queue_alloc(int client, int locked, unsigned int flags);
+struct snd_seq_queue *snd_seq_queue_alloc(int client, int locked, unsigned int flags);
 
 /* delete queue (destructor) */
 int snd_seq_queue_delete(int client, int queueid);
diff --git a/sound/drivers/opl4/opl4_lib.c b/sound/drivers/opl4/opl4_lib.c
index bc345d564f8d..db76a5bf2bd2 100644
--- a/sound/drivers/opl4/opl4_lib.c
+++ b/sound/drivers/opl4/opl4_lib.c
@@ -29,7 +29,7 @@ MODULE_AUTHOR("Clemens Ladisch <clemens@ladisch.de>");
 MODULE_DESCRIPTION("OPL4 driver");
 MODULE_LICENSE("GPL");
 
-static void inline snd_opl4_wait(struct snd_opl4 *opl4)
+static inline void snd_opl4_wait(struct snd_opl4 *opl4)
 {
 	int timeout = 10;
 	while ((inb(opl4->fm_port) & OPL4_STATUS_BUSY) && --timeout > 0)
diff --git a/sound/isa/msnd/msnd_midi.c b/sound/isa/msnd/msnd_midi.c
index 912b5a9ccbab..013d8d1170fe 100644
--- a/sound/isa/msnd/msnd_midi.c
+++ b/sound/isa/msnd/msnd_midi.c
@@ -120,24 +120,24 @@ void snd_msndmidi_input_read(void *mpuv)
 	unsigned long flags;
 	struct snd_msndmidi *mpu = mpuv;
 	void *pwMIDQData = mpu->dev->mappedbase + MIDQ_DATA_BUFF;
+	u16 head, tail, size;
 
 	spin_lock_irqsave(&mpu->input_lock, flags);
-	while (readw(mpu->dev->MIDQ + JQS_wTail) !=
-	       readw(mpu->dev->MIDQ + JQS_wHead)) {
-		u16 wTmp, val;
-		val = readw(pwMIDQData + 2 * readw(mpu->dev->MIDQ + JQS_wHead));
-
-			if (test_bit(MSNDMIDI_MODE_BIT_INPUT_TRIGGER,
-				     &mpu->mode))
-				snd_rawmidi_receive(mpu->substream_input,
-						    (unsigned char *)&val, 1);
-
-		wTmp = readw(mpu->dev->MIDQ + JQS_wHead) + 1;
-		if (wTmp > readw(mpu->dev->MIDQ + JQS_wSize))
-			writew(0,  mpu->dev->MIDQ + JQS_wHead);
-		else
-			writew(wTmp,  mpu->dev->MIDQ + JQS_wHead);
+	head = readw(mpu->dev->MIDQ + JQS_wHead);
+	tail = readw(mpu->dev->MIDQ + JQS_wTail);
+	size = readw(mpu->dev->MIDQ + JQS_wSize);
+	if (head > size || tail > size)
+		goto out;
+	while (head != tail) {
+		unsigned char val = readw(pwMIDQData + 2 * head);
+
+		if (test_bit(MSNDMIDI_MODE_BIT_INPUT_TRIGGER, &mpu->mode))
+			snd_rawmidi_receive(mpu->substream_input, &val, 1);
+		if (++head > size)
+			head = 0;
+		writew(head, mpu->dev->MIDQ + JQS_wHead);
 	}
+ out:
 	spin_unlock_irqrestore(&mpu->input_lock, flags);
 }
 EXPORT_SYMBOL(snd_msndmidi_input_read);
diff --git a/sound/isa/msnd/msnd_pinnacle.c b/sound/isa/msnd/msnd_pinnacle.c
index ad4897337df5..fc4fb1904aef 100644
--- a/sound/isa/msnd/msnd_pinnacle.c
+++ b/sound/isa/msnd/msnd_pinnacle.c
@@ -170,23 +170,24 @@ static irqreturn_t snd_msnd_interrupt(int irq, void *dev_id)
 {
 	struct snd_msnd *chip = dev_id;
 	void *pwDSPQData = chip->mappedbase + DSPQ_DATA_BUFF;
+	u16 head, tail, size;
 
 	/* Send ack to DSP */
 	/* inb(chip->io + HP_RXL); */
 
 	/* Evaluate queued DSP messages */
-	while (readw(chip->DSPQ + JQS_wTail) != readw(chip->DSPQ + JQS_wHead)) {
-		u16 wTmp;
-
-		snd_msnd_eval_dsp_msg(chip,
-			readw(pwDSPQData + 2 * readw(chip->DSPQ + JQS_wHead)));
-
-		wTmp = readw(chip->DSPQ + JQS_wHead) + 1;
-		if (wTmp > readw(chip->DSPQ + JQS_wSize))
-			writew(0, chip->DSPQ + JQS_wHead);
-		else
-			writew(wTmp, chip->DSPQ + JQS_wHead);
+	head = readw(chip->DSPQ + JQS_wHead);
+	tail = readw(chip->DSPQ + JQS_wTail);
+	size = readw(chip->DSPQ + JQS_wSize);
+	if (head > size || tail > size)
+		goto out;
+	while (head != tail) {
+		snd_msnd_eval_dsp_msg(chip, readw(pwDSPQData + 2 * head));
+		if (++head > size)
+			head = 0;
+		writew(head, chip->DSPQ + JQS_wHead);
 	}
+ out:
 	/* Send ack to DSP */
 	inb(chip->io + HP_RXL);
 	return IRQ_HANDLED;
diff --git a/sound/pci/emu10k1/emufx.c b/sound/pci/emu10k1/emufx.c
index dc585959ca32..a2b56b188be4 100644
--- a/sound/pci/emu10k1/emufx.c
+++ b/sound/pci/emu10k1/emufx.c
@@ -698,10 +698,18 @@ static int copy_gctl(struct snd_emu10k1 *emu,
 {
 	struct snd_emu10k1_fx8010_control_old_gpr __user *octl;
 
-	if (emu->support_tlv)
-		return copy_from_user(gctl, &_gctl[idx], sizeof(*gctl));
+	if (emu->support_tlv) {
+		if (in_kernel)
+			memcpy(gctl, (void *)&_gctl[idx], sizeof(*gctl));
+		else if (copy_from_user(gctl, &_gctl[idx], sizeof(*gctl)))
+			return -EFAULT;
+		return 0;
+	}
+
 	octl = (struct snd_emu10k1_fx8010_control_old_gpr __user *)_gctl;
-	if (copy_from_user(gctl, &octl[idx], sizeof(*octl)))
+	if (in_kernel)
+		memcpy(gctl, (void *)&octl[idx], sizeof(*octl));
+	else if (copy_from_user(gctl, &octl[idx], sizeof(*octl)))
 		return -EFAULT;
 	gctl->tlv = NULL;
 	return 0;
diff --git a/sound/pci/fm801.c b/sound/pci/fm801.c
index 2e402ece4c86..8e6b04b39dcc 100644
--- a/sound/pci/fm801.c
+++ b/sound/pci/fm801.c
@@ -1235,8 +1235,6 @@ static int snd_fm801_create(struct snd_card *card,
 		}
 	}
 
-	snd_fm801_chip_init(chip);
-
 	if ((chip->tea575x_tuner & TUNER_ONLY) == 0) {
 		if (devm_request_irq(&pci->dev, pci->irq, snd_fm801_interrupt,
 				IRQF_SHARED, KBUILD_MODNAME, chip)) {
@@ -1248,6 +1246,8 @@ static int snd_fm801_create(struct snd_card *card,
 		pci_set_master(pci);
 	}
 
+	snd_fm801_chip_init(chip);
+
 	if ((err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, chip, &ops)) < 0) {
 		snd_fm801_free(chip);
 		return err;
diff --git a/sound/pci/hda/patch_conexant.c b/sound/pci/hda/patch_conexant.c
index 63bc894ddf5e..8c1289963c80 100644
--- a/sound/pci/hda/patch_conexant.c
+++ b/sound/pci/hda/patch_conexant.c
@@ -933,6 +933,7 @@ static const struct snd_pci_quirk cxt5066_fixups[] = {
 	SND_PCI_QUIRK(0x103c, 0x8174, "HP Spectre x360", CXT_FIXUP_HP_SPECTRE),
 	SND_PCI_QUIRK(0x103c, 0x8115, "HP Z1 Gen3", CXT_FIXUP_HP_GATE_MIC),
 	SND_PCI_QUIRK(0x103c, 0x814f, "HP ZBook 15u G3", CXT_FIXUP_MUTE_LED_GPIO),
+	SND_PCI_QUIRK(0x103c, 0x822e, "HP ProBook 440 G4", CXT_FIXUP_MUTE_LED_GPIO),
 	SND_PCI_QUIRK(0x1043, 0x138d, "Asus", CXT_FIXUP_HEADPHONE_MIC_PIN),
 	SND_PCI_QUIRK(0x152d, 0x0833, "OLPC XO-1.5", CXT_FIXUP_OLPC_XO),
 	SND_PCI_QUIRK(0x17aa, 0x20f2, "Lenovo T400", CXT_PINCFG_LENOVO_TP410),
diff --git a/sound/pci/hda/patch_hdmi.c b/sound/pci/hda/patch_hdmi.c
index 76c85f08bea6..53f9311370de 100644
--- a/sound/pci/hda/patch_hdmi.c
+++ b/sound/pci/hda/patch_hdmi.c
@@ -53,9 +53,11 @@ MODULE_PARM_DESC(static_hdmi_pcm, "Don't restrict PCM parameters per ELD info");
 #define is_skylake(codec) ((codec)->core.vendor_id == 0x80862809)
 #define is_broxton(codec) ((codec)->core.vendor_id == 0x8086280a)
 #define is_kabylake(codec) ((codec)->core.vendor_id == 0x8086280b)
+#define is_geminilake(codec) (((codec)->core.vendor_id == 0x8086280d) || \
+				((codec)->core.vendor_id == 0x80862800))
 #define is_haswell_plus(codec) (is_haswell(codec) || is_broadwell(codec) \
 				|| is_skylake(codec) || is_broxton(codec) \
-				|| is_kabylake(codec))
+				|| is_kabylake(codec)) || is_geminilake(codec)
 
 #define is_valleyview(codec) ((codec)->core.vendor_id == 0x80862882)
 #define is_cherryview(codec) ((codec)->core.vendor_id == 0x80862883)
@@ -3731,11 +3733,15 @@ HDA_CODEC_ENTRY(0x1002aa01, "R6xx HDMI",	patch_atihdmi),
 HDA_CODEC_ENTRY(0x10951390, "SiI1390 HDMI",	patch_generic_hdmi),
 HDA_CODEC_ENTRY(0x10951392, "SiI1392 HDMI",	patch_generic_hdmi),
 HDA_CODEC_ENTRY(0x17e80047, "Chrontel HDMI",	patch_generic_hdmi),
+HDA_CODEC_ENTRY(0x10de0001, "MCP73 HDMI",	patch_nvhdmi_2ch),
 HDA_CODEC_ENTRY(0x10de0002, "MCP77/78 HDMI",	patch_nvhdmi_8ch_7x),
 HDA_CODEC_ENTRY(0x10de0003, "MCP77/78 HDMI",	patch_nvhdmi_8ch_7x),
+HDA_CODEC_ENTRY(0x10de0004, "GPU 04 HDMI",	patch_nvhdmi_8ch_7x),
 HDA_CODEC_ENTRY(0x10de0005, "MCP77/78 HDMI",	patch_nvhdmi_8ch_7x),
 HDA_CODEC_ENTRY(0x10de0006, "MCP77/78 HDMI",	patch_nvhdmi_8ch_7x),
 HDA_CODEC_ENTRY(0x10de0007, "MCP79/7A HDMI",	patch_nvhdmi_8ch_7x),
+HDA_CODEC_ENTRY(0x10de0008, "GPU 08 HDMI/DP",	patch_nvhdmi),
+HDA_CODEC_ENTRY(0x10de0009, "GPU 09 HDMI/DP",	patch_nvhdmi),
 HDA_CODEC_ENTRY(0x10de000a, "GPU 0a HDMI/DP",	patch_nvhdmi),
 HDA_CODEC_ENTRY(0x10de000b, "GPU 0b HDMI/DP",	patch_nvhdmi),
 HDA_CODEC_ENTRY(0x10de000c, "MCP89 HDMI",	patch_nvhdmi),
@@ -3762,17 +3768,40 @@ HDA_CODEC_ENTRY(0x10de0041, "GPU 41 HDMI/DP",	patch_nvhdmi),
 HDA_CODEC_ENTRY(0x10de0042, "GPU 42 HDMI/DP",	patch_nvhdmi),
 HDA_CODEC_ENTRY(0x10de0043, "GPU 43 HDMI/DP",	patch_nvhdmi),
 HDA_CODEC_ENTRY(0x10de0044, "GPU 44 HDMI/DP",	patch_nvhdmi),
+HDA_CODEC_ENTRY(0x10de0045, "GPU 45 HDMI/DP",	patch_nvhdmi),
+HDA_CODEC_ENTRY(0x10de0050, "GPU 50 HDMI/DP",	patch_nvhdmi),
 HDA_CODEC_ENTRY(0x10de0051, "GPU 51 HDMI/DP",	patch_nvhdmi),
+HDA_CODEC_ENTRY(0x10de0052, "GPU 52 HDMI/DP",	patch_nvhdmi),
 HDA_CODEC_ENTRY(0x10de0060, "GPU 60 HDMI/DP",	patch_nvhdmi),
+HDA_CODEC_ENTRY(0x10de0061, "GPU 61 HDMI/DP",	patch_nvhdmi),
+HDA_CODEC_ENTRY(0x10de0062, "GPU 62 HDMI/DP",	patch_nvhdmi),
 HDA_CODEC_ENTRY(0x10de0067, "MCP67 HDMI",	patch_nvhdmi_2ch),
 HDA_CODEC_ENTRY(0x10de0070, "GPU 70 HDMI/DP",	patch_nvhdmi),
 HDA_CODEC_ENTRY(0x10de0071, "GPU 71 HDMI/DP",	patch_nvhdmi),
 HDA_CODEC_ENTRY(0x10de0072, "GPU 72 HDMI/DP",	patch_nvhdmi),
+HDA_CODEC_ENTRY(0x10de0073, "GPU 73 HDMI/DP",	patch_nvhdmi),
+HDA_CODEC_ENTRY(0x10de0074, "GPU 74 HDMI/DP",	patch_nvhdmi),
+HDA_CODEC_ENTRY(0x10de0076, "GPU 76 HDMI/DP",	patch_nvhdmi),
+HDA_CODEC_ENTRY(0x10de007b, "GPU 7b HDMI/DP",	patch_nvhdmi),
+HDA_CODEC_ENTRY(0x10de007c, "GPU 7c HDMI/DP",	patch_nvhdmi),
 HDA_CODEC_ENTRY(0x10de007d, "GPU 7d HDMI/DP",	patch_nvhdmi),
+HDA_CODEC_ENTRY(0x10de007e, "GPU 7e HDMI/DP",	patch_nvhdmi),
 HDA_CODEC_ENTRY(0x10de0080, "GPU 80 HDMI/DP",	patch_nvhdmi),
+HDA_CODEC_ENTRY(0x10de0081, "GPU 81 HDMI/DP",	patch_nvhdmi),
 HDA_CODEC_ENTRY(0x10de0082, "GPU 82 HDMI/DP",	patch_nvhdmi),
 HDA_CODEC_ENTRY(0x10de0083, "GPU 83 HDMI/DP",	patch_nvhdmi),
+HDA_CODEC_ENTRY(0x10de0084, "GPU 84 HDMI/DP",	patch_nvhdmi),
+HDA_CODEC_ENTRY(0x10de0090, "GPU 90 HDMI/DP",	patch_nvhdmi),
+HDA_CODEC_ENTRY(0x10de0091, "GPU 91 HDMI/DP",	patch_nvhdmi),
+HDA_CODEC_ENTRY(0x10de0092, "GPU 92 HDMI/DP",	patch_nvhdmi),
+HDA_CODEC_ENTRY(0x10de0093, "GPU 93 HDMI/DP",	patch_nvhdmi),
+HDA_CODEC_ENTRY(0x10de0094, "GPU 94 HDMI/DP",	patch_nvhdmi),
+HDA_CODEC_ENTRY(0x10de0095, "GPU 95 HDMI/DP",	patch_nvhdmi),
+HDA_CODEC_ENTRY(0x10de0097, "GPU 97 HDMI/DP",	patch_nvhdmi),
+HDA_CODEC_ENTRY(0x10de0098, "GPU 98 HDMI/DP",	patch_nvhdmi),
+HDA_CODEC_ENTRY(0x10de0099, "GPU 99 HDMI/DP",	patch_nvhdmi),
 HDA_CODEC_ENTRY(0x10de8001, "MCP73 HDMI",	patch_nvhdmi_2ch),
+HDA_CODEC_ENTRY(0x10de8067, "MCP67/68 HDMI",	patch_nvhdmi_2ch),
 HDA_CODEC_ENTRY(0x11069f80, "VX900 HDMI/DP",	patch_via_hdmi),
 HDA_CODEC_ENTRY(0x11069f81, "VX900 HDMI/DP",	patch_via_hdmi),
 HDA_CODEC_ENTRY(0x11069f84, "VX11 HDMI/DP",	patch_generic_hdmi),
@@ -3790,6 +3819,7 @@ HDA_CODEC_ENTRY(0x80862809, "Skylake HDMI",	patch_i915_hsw_hdmi),
 HDA_CODEC_ENTRY(0x8086280a, "Broxton HDMI",	patch_i915_hsw_hdmi),
 HDA_CODEC_ENTRY(0x8086280b, "Kabylake HDMI",	patch_i915_hsw_hdmi),
 HDA_CODEC_ENTRY(0x8086280d, "Geminilake HDMI",	patch_i915_glk_hdmi),
+HDA_CODEC_ENTRY(0x80862800, "Geminilake HDMI",	patch_i915_glk_hdmi),
 HDA_CODEC_ENTRY(0x80862880, "CedarTrail HDMI",	patch_generic_hdmi),
 HDA_CODEC_ENTRY(0x80862882, "Valleyview2 HDMI",	patch_i915_byt_hdmi),
 HDA_CODEC_ENTRY(0x80862883, "Braswell HDMI",	patch_i915_byt_hdmi),
diff --git a/sound/pci/hda/patch_realtek.c b/sound/pci/hda/patch_realtek.c
index cd6987b5c6d9..217bb582aff1 100644
--- a/sound/pci/hda/patch_realtek.c
+++ b/sound/pci/hda/patch_realtek.c
@@ -379,6 +379,7 @@ static void alc_fill_eapd_coef(struct hda_codec *codec)
 		break;
 	case 0x10ec0899:
 	case 0x10ec0900:
+	case 0x10ec1168:
 	case 0x10ec1220:
 		alc_update_coef_idx(codec, 0x7, 1<<1, 0);
 		break;
@@ -2295,6 +2296,7 @@ static const struct snd_pci_quirk alc882_fixup_tbl[] = {
 	SND_PCI_QUIRK(0x1043, 0x8691, "ASUS ROG Ranger VIII", ALC882_FIXUP_GPIO3),
 	SND_PCI_QUIRK(0x104d, 0x9047, "Sony Vaio TT", ALC889_FIXUP_VAIO_TT),
 	SND_PCI_QUIRK(0x104d, 0x905a, "Sony Vaio Z", ALC882_FIXUP_NO_PRIMARY_HP),
+	SND_PCI_QUIRK(0x104d, 0x9060, "Sony Vaio VPCL14M1R", ALC882_FIXUP_NO_PRIMARY_HP),
 	SND_PCI_QUIRK(0x104d, 0x9043, "Sony Vaio VGC-LN51JGB", ALC882_FIXUP_NO_PRIMARY_HP),
 	SND_PCI_QUIRK(0x104d, 0x9044, "Sony VAIO AiO", ALC882_FIXUP_NO_PRIMARY_HP),
 
@@ -3837,6 +3839,17 @@ static void alc269_fixup_hp_line1_mic1_led(struct hda_codec *codec,
 	}
 }
 
+static struct coef_fw alc225_pre_hsmode[] = {
+	UPDATE_COEF(0x4a, 1<<8, 0),
+	UPDATE_COEFEX(0x57, 0x05, 1<<14, 0),
+	UPDATE_COEF(0x63, 3<<14, 3<<14),
+	UPDATE_COEF(0x4a, 3<<4, 2<<4),
+	UPDATE_COEF(0x4a, 3<<10, 3<<10),
+	UPDATE_COEF(0x45, 0x3f<<10, 0x34<<10),
+	UPDATE_COEF(0x4a, 3<<10, 0),
+	{}
+};
+
 static void alc_headset_mode_unplugged(struct hda_codec *codec)
 {
 	static struct coef_fw coef0255[] = {
@@ -3872,6 +3885,10 @@ static void alc_headset_mode_unplugged(struct hda_codec *codec)
 		UPDATE_COEF(0x67, 0x2000, 0),
 		{}
 	};
+	static struct coef_fw coef0298[] = {
+		UPDATE_COEF(0x19, 0x1300, 0x0300),
+		{}
+	};
 	static struct coef_fw coef0292[] = {
 		WRITE_COEF(0x76, 0x000e),
 		WRITE_COEF(0x6c, 0x2400),
@@ -3894,13 +3911,7 @@ static void alc_headset_mode_unplugged(struct hda_codec *codec)
 		{}
 	};
 	static struct coef_fw coef0225[] = {
-		UPDATE_COEF(0x4a, 1<<8, 0),
-		UPDATE_COEFEX(0x57, 0x05, 1<<14, 0),
-		UPDATE_COEF(0x63, 3<<14, 3<<14),
-		UPDATE_COEF(0x4a, 3<<4, 2<<4),
-		UPDATE_COEF(0x4a, 3<<10, 3<<10),
-		UPDATE_COEF(0x45, 0x3f<<10, 0x34<<10),
-		UPDATE_COEF(0x4a, 3<<10, 0),
+		UPDATE_COEF(0x63, 3<<14, 0),
 		{}
 	};
 	static struct coef_fw coef0274[] = {
@@ -3934,7 +3945,10 @@ static void alc_headset_mode_unplugged(struct hda_codec *codec)
 		break;
 	case 0x10ec0286:
 	case 0x10ec0288:
+		alc_process_coef_fw(codec, coef0288);
+		break;
 	case 0x10ec0298:
+		alc_process_coef_fw(codec, coef0298);
 		alc_process_coef_fw(codec, coef0288);
 		break;
 	case 0x10ec0292:
@@ -3975,6 +3989,7 @@ static void alc_headset_mode_mic_in(struct hda_codec *codec, hda_nid_t hp_pin,
 		{}
 	};
 	static struct coef_fw coef0288[] = {
+		UPDATE_COEF(0x4f, 0x00c0, 0),
 		UPDATE_COEF(0x50, 0x2000, 0),
 		UPDATE_COEF(0x56, 0x0006, 0),
 		UPDATE_COEF(0x4f, 0xfcc0, 0xc400),
@@ -4038,7 +4053,6 @@ static void alc_headset_mode_mic_in(struct hda_codec *codec, hda_nid_t hp_pin,
 	case 0x10ec0286:
 	case 0x10ec0288:
 	case 0x10ec0298:
-		alc_update_coef_idx(codec, 0x4f, 0x000c, 0);
 		snd_hda_set_pin_ctl_cache(codec, hp_pin, 0);
 		alc_process_coef_fw(codec, coef0288);
 		snd_hda_set_pin_ctl_cache(codec, mic_pin, PIN_VREF50);
@@ -4071,6 +4085,7 @@ static void alc_headset_mode_mic_in(struct hda_codec *codec, hda_nid_t hp_pin,
 	case 0x10ec0225:
 	case 0x10ec0295:
 	case 0x10ec0299:
+		alc_process_coef_fw(codec, alc225_pre_hsmode);
 		alc_update_coef_idx(codec, 0x45, 0x3f<<10, 0x31<<10);
 		snd_hda_set_pin_ctl_cache(codec, hp_pin, 0);
 		alc_process_coef_fw(codec, coef0225);
@@ -4083,7 +4098,12 @@ static void alc_headset_mode_mic_in(struct hda_codec *codec, hda_nid_t hp_pin,
 static void alc_headset_mode_default(struct hda_codec *codec)
 {
 	static struct coef_fw coef0225[] = {
-		UPDATE_COEF(0x45, 0x3f<<10, 0x34<<10),
+		UPDATE_COEF(0x45, 0x3f<<10, 0x30<<10),
+		UPDATE_COEF(0x45, 0x3f<<10, 0x31<<10),
+		UPDATE_COEF(0x49, 3<<8, 0<<8),
+		UPDATE_COEF(0x4a, 3<<4, 3<<4),
+		UPDATE_COEF(0x63, 3<<14, 0),
+		UPDATE_COEF(0x67, 0xf000, 0x3000),
 		{}
 	};
 	static struct coef_fw coef0255[] = {
@@ -4137,6 +4157,7 @@ static void alc_headset_mode_default(struct hda_codec *codec)
 	case 0x10ec0225:
 	case 0x10ec0295:
 	case 0x10ec0299:
+		alc_process_coef_fw(codec, alc225_pre_hsmode);
 		alc_process_coef_fw(codec, coef0225);
 		break;
 	case 0x10ec0255:
@@ -4176,6 +4197,8 @@ static void alc_headset_mode_default(struct hda_codec *codec)
 /* Iphone type */
 static void alc_headset_mode_ctia(struct hda_codec *codec)
 {
+	int val;
+
 	static struct coef_fw coef0255[] = {
 		WRITE_COEF(0x45, 0xd489), /* Set to CTIA type */
 		WRITE_COEF(0x1b, 0x0c2b),
@@ -4218,11 +4241,14 @@ static void alc_headset_mode_ctia(struct hda_codec *codec)
 		WRITE_COEF(0xc3, 0x0000),
 		{}
 	};
-	static struct coef_fw coef0225[] = {
+	static struct coef_fw coef0225_1[] = {
 		UPDATE_COEF(0x45, 0x3f<<10, 0x35<<10),
-		UPDATE_COEF(0x49, 1<<8, 1<<8),
-		UPDATE_COEF(0x4a, 7<<6, 7<<6),
-		UPDATE_COEF(0x4a, 3<<4, 3<<4),
+		UPDATE_COEF(0x63, 3<<14, 2<<14),
+		{}
+	};
+	static struct coef_fw coef0225_2[] = {
+		UPDATE_COEF(0x45, 0x3f<<10, 0x35<<10),
+		UPDATE_COEF(0x63, 3<<14, 1<<14),
 		{}
 	};
 
@@ -4243,8 +4269,17 @@ static void alc_headset_mode_ctia(struct hda_codec *codec)
 		alc_process_coef_fw(codec, coef0233);
 		break;
 	case 0x10ec0298:
-		alc_update_coef_idx(codec, 0x8e, 0x0070, 0x0020);/* Headset output enable */
-		/* ALC298 jack type setting is the same with ALC286/ALC288 */
+		val = alc_read_coef_idx(codec, 0x50);
+		if (val & (1 << 12)) {
+			alc_update_coef_idx(codec, 0x8e, 0x0070, 0x0020);
+			alc_update_coef_idx(codec, 0x4f, 0xfcc0, 0xd400);
+			msleep(300);
+		} else {
+			alc_update_coef_idx(codec, 0x8e, 0x0070, 0x0010);
+			alc_update_coef_idx(codec, 0x4f, 0xfcc0, 0xd400);
+			msleep(300);
+		}
+		break;
 	case 0x10ec0286:
 	case 0x10ec0288:
 		alc_update_coef_idx(codec, 0x4f, 0xfcc0, 0xd400);
@@ -4263,7 +4298,11 @@ static void alc_headset_mode_ctia(struct hda_codec *codec)
 	case 0x10ec0225:
 	case 0x10ec0295:
 	case 0x10ec0299:
-		alc_process_coef_fw(codec, coef0225);
+		val = alc_read_coef_idx(codec, 0x45);
+		if (val & (1 << 9))
+			alc_process_coef_fw(codec, coef0225_2);
+		else
+			alc_process_coef_fw(codec, coef0225_1);
 		break;
 	case 0x10ec0867:
 		alc_update_coefex_idx(codec, 0x57, 0x5, 1<<14, 0);
@@ -4319,9 +4358,7 @@ static void alc_headset_mode_omtp(struct hda_codec *codec)
 	};
 	static struct coef_fw coef0225[] = {
 		UPDATE_COEF(0x45, 0x3f<<10, 0x39<<10),
-		UPDATE_COEF(0x49, 1<<8, 1<<8),
-		UPDATE_COEF(0x4a, 7<<6, 7<<6),
-		UPDATE_COEF(0x4a, 3<<4, 3<<4),
+		UPDATE_COEF(0x63, 3<<14, 2<<14),
 		{}
 	};
 
@@ -4343,7 +4380,9 @@ static void alc_headset_mode_omtp(struct hda_codec *codec)
 		break;
 	case 0x10ec0298:
 		alc_update_coef_idx(codec, 0x8e, 0x0070, 0x0010);/* Headset output enable */
-		/* ALC298 jack type setting is the same with ALC286/ALC288 */
+		alc_update_coef_idx(codec, 0x4f, 0xfcc0, 0xe400);
+		msleep(300);
+		break;
 	case 0x10ec0286:
 	case 0x10ec0288:
 		alc_update_coef_idx(codec, 0x4f, 0xfcc0, 0xe400);
@@ -4383,6 +4422,14 @@ static void alc_determine_headset_type(struct hda_codec *codec)
 		UPDATE_COEF(0x4f, 0xfcc0, 0xd400), /* Check Type */
 		{}
 	};
+	static struct coef_fw coef0298[] = {
+		UPDATE_COEF(0x50, 0x2000, 0x2000),
+		UPDATE_COEF(0x56, 0x0006, 0x0006),
+		UPDATE_COEF(0x66, 0x0008, 0),
+		UPDATE_COEF(0x67, 0x2000, 0),
+		UPDATE_COEF(0x19, 0x1300, 0x1300),
+		{}
+	};
 	static struct coef_fw coef0293[] = {
 		UPDATE_COEF(0x4a, 0x000f, 0x0008), /* Combo Jack auto detect */
 		WRITE_COEF(0x45, 0xD429), /* Set to ctia type */
@@ -4395,11 +4442,6 @@ static void alc_determine_headset_type(struct hda_codec *codec)
 		WRITE_COEF(0xc3, 0x0c00),
 		{}
 	};
-	static struct coef_fw coef0225[] = {
-		UPDATE_COEF(0x45, 0x3f<<10, 0x34<<10),
-		UPDATE_COEF(0x49, 1<<8, 1<<8),
-		{}
-	};
 	static struct coef_fw coef0274[] = {
 		UPDATE_COEF(0x4a, 0x0010, 0),
 		UPDATE_COEF(0x4a, 0x8000, 0),
@@ -4432,8 +4474,34 @@ static void alc_determine_headset_type(struct hda_codec *codec)
 		is_ctia = (val & 0x0070) == 0x0070;
 		break;
 	case 0x10ec0298:
-		alc_update_coef_idx(codec, 0x8e, 0x0070, 0x0020); /* Headset output enable */
-		/* ALC298 check jack type is the same with ALC286/ALC288 */
+		snd_hda_codec_write(codec, 0x21, 0,
+			    AC_VERB_SET_AMP_GAIN_MUTE, AMP_OUT_MUTE);
+		msleep(100);
+		snd_hda_codec_write(codec, 0x21, 0,
+			    AC_VERB_SET_PIN_WIDGET_CONTROL, 0x0);
+		msleep(200);
+
+		val = alc_read_coef_idx(codec, 0x50);
+		if (val & (1 << 12)) {
+			alc_update_coef_idx(codec, 0x8e, 0x0070, 0x0020);
+			alc_process_coef_fw(codec, coef0288);
+			msleep(350);
+			val = alc_read_coef_idx(codec, 0x50);
+			is_ctia = (val & 0x0070) == 0x0070;
+		} else {
+			alc_update_coef_idx(codec, 0x8e, 0x0070, 0x0010);
+			alc_process_coef_fw(codec, coef0288);
+			msleep(350);
+			val = alc_read_coef_idx(codec, 0x50);
+			is_ctia = (val & 0x0070) == 0x0070;
+		}
+		alc_process_coef_fw(codec, coef0298);
+		snd_hda_codec_write(codec, 0x21, 0,
+			    AC_VERB_SET_PIN_WIDGET_CONTROL, PIN_HP);
+		msleep(75);
+		snd_hda_codec_write(codec, 0x21, 0,
+			    AC_VERB_SET_AMP_GAIN_MUTE, AMP_OUT_UNMUTE);
+		break;
 	case 0x10ec0286:
 	case 0x10ec0288:
 		alc_process_coef_fw(codec, coef0288);
@@ -4462,10 +4530,25 @@ static void alc_determine_headset_type(struct hda_codec *codec)
 	case 0x10ec0225:
 	case 0x10ec0295:
 	case 0x10ec0299:
-		alc_process_coef_fw(codec, coef0225);
-		msleep(800);
-		val = alc_read_coef_idx(codec, 0x46);
-		is_ctia = (val & 0x00f0) == 0x00f0;
+		alc_process_coef_fw(codec, alc225_pre_hsmode);
+		alc_update_coef_idx(codec, 0x67, 0xf000, 0x1000);
+		val = alc_read_coef_idx(codec, 0x45);
+		if (val & (1 << 9)) {
+			alc_update_coef_idx(codec, 0x45, 0x3f<<10, 0x34<<10);
+			alc_update_coef_idx(codec, 0x49, 3<<8, 2<<8);
+			msleep(800);
+			val = alc_read_coef_idx(codec, 0x46);
+			is_ctia = (val & 0x00f0) == 0x00f0;
+		} else {
+			alc_update_coef_idx(codec, 0x45, 0x3f<<10, 0x34<<10);
+			alc_update_coef_idx(codec, 0x49, 3<<8, 1<<8);
+			msleep(800);
+			val = alc_read_coef_idx(codec, 0x46);
+			is_ctia = (val & 0x00f0) == 0x00f0;
+		}
+		alc_update_coef_idx(codec, 0x4a, 7<<6, 7<<6);
+		alc_update_coef_idx(codec, 0x4a, 3<<4, 3<<4);
+		alc_update_coef_idx(codec, 0x67, 0xf000, 0x3000);
 		break;
 	case 0x10ec0867:
 		is_ctia = true;
@@ -5179,6 +5262,7 @@ enum {
 	ALC233_FIXUP_ASUS_MIC_NO_PRESENCE,
 	ALC233_FIXUP_EAPD_COEF_AND_MIC_NO_PRESENCE,
 	ALC233_FIXUP_LENOVO_MULTI_CODECS,
+	ALC294_FIXUP_LENOVO_MIC_LOCATION,
 };
 
 static const struct hda_fixup alc269_fixups[] = {
@@ -5962,6 +6046,18 @@ static const struct hda_fixup alc269_fixups[] = {
 		.type = HDA_FIXUP_FUNC,
 		.v.func = alc233_alc662_fixup_lenovo_dual_codecs,
 	},
+	[ALC294_FIXUP_LENOVO_MIC_LOCATION] = {
+		.type = HDA_FIXUP_PINS,
+		.v.pins = (const struct hda_pintbl[]) {
+			/* Change the mic location from front to right, otherwise there are
+			   two front mics with the same name, pulseaudio can't handle them.
+			   This is just a temporary workaround, after applying this fixup,
+			   there will be one "Front Mic" and one "Mic" in this machine.
+			 */
+			{ 0x1a, 0x04a19040 },
+			{ }
+		},
+	},
 };
 
 static const struct snd_pci_quirk alc269_fixup_tbl[] = {
@@ -6143,6 +6239,7 @@ static const struct snd_pci_quirk alc269_fixup_tbl[] = {
 	SND_PCI_QUIRK(0x17aa, 0x2233, "Thinkpad", ALC292_FIXUP_TPT460),
 	SND_PCI_QUIRK(0x17aa, 0x30bb, "ThinkCentre AIO", ALC233_FIXUP_LENOVO_LINE2_MIC_HOTKEY),
 	SND_PCI_QUIRK(0x17aa, 0x30e2, "ThinkCentre AIO", ALC233_FIXUP_LENOVO_LINE2_MIC_HOTKEY),
+	SND_PCI_QUIRK(0x17aa, 0x310c, "ThinkCentre Station", ALC294_FIXUP_LENOVO_MIC_LOCATION),
 	SND_PCI_QUIRK(0x17aa, 0x3112, "ThinkCentre AIO", ALC233_FIXUP_LENOVO_LINE2_MIC_HOTKEY),
 	SND_PCI_QUIRK(0x17aa, 0x3902, "Lenovo E50-80", ALC269_FIXUP_DMIC_THINKPAD_ACPI),
 	SND_PCI_QUIRK(0x17aa, 0x3977, "IdeaPad S210", ALC283_FIXUP_INT_MIC),
@@ -6550,7 +6647,6 @@ static const struct snd_hda_pin_quirk alc269_pin_fixup_tbl[] = {
 	SND_HDA_PIN_QUIRK(0x10ec0299, 0x1028, "Dell", ALC269_FIXUP_DELL4_MIC_NO_PRESENCE,
 		ALC225_STANDARD_PINS,
 		{0x12, 0xb7a60130},
-		{0x13, 0xb8a61140},
 		{0x17, 0x90170110}),
 	{}
 };
@@ -6709,6 +6805,7 @@ static int patch_alc269(struct hda_codec *codec)
 	case 0x10ec0225:
 	case 0x10ec0295:
 		spec->codec_variant = ALC269_TYPE_ALC225;
+		spec->gen.mixer_nid = 0; /* no loopback on ALC225 ALC295 */
 		break;
 	case 0x10ec0299:
 		spec->codec_variant = ALC269_TYPE_ALC225;
@@ -7801,6 +7898,7 @@ static const struct hda_device_id snd_hda_id_realtek[] = {
 	HDA_CODEC_ENTRY(0x10ec0892, "ALC892", patch_alc662),
 	HDA_CODEC_ENTRY(0x10ec0899, "ALC898", patch_alc882),
 	HDA_CODEC_ENTRY(0x10ec0900, "ALC1150", patch_alc882),
+	HDA_CODEC_ENTRY(0x10ec1168, "ALC1220", patch_alc882),
 	HDA_CODEC_ENTRY(0x10ec1220, "ALC1220", patch_alc882),
 	{} /* terminator */
 };
diff --git a/sound/soc/codecs/msm8916-wcd-analog.c b/sound/soc/codecs/msm8916-wcd-analog.c
index a78802920c3c..5710fd440bcd 100644
--- a/sound/soc/codecs/msm8916-wcd-analog.c
+++ b/sound/soc/codecs/msm8916-wcd-analog.c
@@ -36,7 +36,7 @@
 #define CDC_D_CDC_DIG_CLK_CTL		(0xf04A)
 #define DIG_CLK_CTL_RXD1_CLK_EN		BIT(0)
 #define DIG_CLK_CTL_RXD2_CLK_EN		BIT(1)
-#define DIG_CLK_CTL_RXD3_CLK_EN		BIT(3)
+#define DIG_CLK_CTL_RXD3_CLK_EN		BIT(2)
 #define DIG_CLK_CTL_TXD_CLK_EN		BIT(4)
 #define DIG_CLK_CTL_NCP_CLK_EN_MASK	BIT(6)
 #define DIG_CLK_CTL_NCP_CLK_EN		BIT(6)
diff --git a/sound/soc/codecs/rt5663.c b/sound/soc/codecs/rt5663.c
index a33202affeb1..fa550e3c1332 100644
--- a/sound/soc/codecs/rt5663.c
+++ b/sound/soc/codecs/rt5663.c
@@ -466,7 +466,7 @@ static const struct reg_default rt5663_reg[] = {
 	{ 0x0006, 0x1000 },
 	{ 0x000a, 0x0000 },
 	{ 0x0010, 0x000f },
-	{ 0x0015, 0x42c1 },
+	{ 0x0015, 0x42f1 },
 	{ 0x0016, 0x0000 },
 	{ 0x0018, 0x000b },
 	{ 0x0019, 0xafaf },
@@ -509,7 +509,7 @@ static const struct reg_default rt5663_reg[] = {
 	{ 0x008a, 0x0000 },
 	{ 0x008b, 0x0000 },
 	{ 0x008c, 0x0003 },
-	{ 0x008e, 0x0004 },
+	{ 0x008e, 0x0008 },
 	{ 0x008f, 0x1000 },
 	{ 0x0090, 0x0646 },
 	{ 0x0091, 0x0e3e },
@@ -520,7 +520,7 @@ static const struct reg_default rt5663_reg[] = {
 	{ 0x0098, 0x0000 },
 	{ 0x009a, 0x0000 },
 	{ 0x009f, 0x0000 },
-	{ 0x00ae, 0x2000 },
+	{ 0x00ae, 0x6000 },
 	{ 0x00af, 0x0000 },
 	{ 0x00b6, 0x0000 },
 	{ 0x00b7, 0x0000 },
@@ -538,7 +538,7 @@ static const struct reg_default rt5663_reg[] = {
 	{ 0x00d9, 0x08f9 },
 	{ 0x00db, 0x0008 },
 	{ 0x00dc, 0x00c0 },
-	{ 0x00dd, 0x6724 },
+	{ 0x00dd, 0x6729 },
 	{ 0x00de, 0x3131 },
 	{ 0x00df, 0x0008 },
 	{ 0x00e0, 0x4000 },
@@ -578,7 +578,7 @@ static const struct reg_default rt5663_reg[] = {
 	{ 0x0116, 0x0000 },
 	{ 0x0117, 0x0f00 },
 	{ 0x0118, 0x0006 },
-	{ 0x0125, 0x2224 },
+	{ 0x0125, 0x2424 },
 	{ 0x0126, 0x5550 },
 	{ 0x0127, 0x0400 },
 	{ 0x0128, 0x7711 },
@@ -596,8 +596,8 @@ static const struct reg_default rt5663_reg[] = {
 	{ 0x0145, 0x0002 },
 	{ 0x0146, 0x0000 },
 	{ 0x0160, 0x0e80 },
-	{ 0x0161, 0x0020 },
-	{ 0x0162, 0x0080 },
+	{ 0x0161, 0x0080 },
+	{ 0x0162, 0x0200 },
 	{ 0x0163, 0x0800 },
 	{ 0x0164, 0x0000 },
 	{ 0x0165, 0x0000 },
@@ -676,8 +676,8 @@ static const struct reg_default rt5663_reg[] = {
 	{ 0x0251, 0x0000 },
 	{ 0x0252, 0x028a },
 	{ 0x02fa, 0x0000 },
-	{ 0x02fb, 0x0000 },
-	{ 0x02fc, 0x0000 },
+	{ 0x02fb, 0x00a4 },
+	{ 0x02fc, 0x0300 },
 	{ 0x0300, 0x0000 },
 	{ 0x03d0, 0x0000 },
 	{ 0x03d1, 0x0000 },
diff --git a/sound/soc/codecs/rt5665.c b/sound/soc/codecs/rt5665.c
index 370ed54d1e15..e597c893536d 100644
--- a/sound/soc/codecs/rt5665.c
+++ b/sound/soc/codecs/rt5665.c
@@ -4368,12 +4368,12 @@ static int rt5665_set_bclk_ratio(struct snd_soc_dai *dai, unsigned int ratio)
 		switch (dai->id) {
 		case RT5665_AIF2_1:
 		case RT5665_AIF2_2:
-			snd_soc_update_bits(codec, RT5665_ADDA_CLK_1,
+			snd_soc_update_bits(codec, RT5665_ADDA_CLK_2,
 				RT5665_I2S_BCLK_MS2_MASK,
 				RT5665_I2S_BCLK_MS2_64);
 			break;
 		case RT5665_AIF3:
-			snd_soc_update_bits(codec, RT5665_ADDA_CLK_1,
+			snd_soc_update_bits(codec, RT5665_ADDA_CLK_2,
 				RT5665_I2S_BCLK_MS3_MASK,
 				RT5665_I2S_BCLK_MS3_64);
 			break;
diff --git a/sound/soc/codecs/rt5665.h b/sound/soc/codecs/rt5665.h
index 1db5c6a62a8e..d95249c4c47b 100644
--- a/sound/soc/codecs/rt5665.h
+++ b/sound/soc/codecs/rt5665.h
@@ -1692,8 +1692,8 @@
 #define RT5665_GP6_PIN_MASK			(0x3 << 5)
 #define RT5665_GP6_PIN_SFT			5
 #define RT5665_GP6_PIN_GPIO6			(0x0 << 5)
-#define RT5665_GP6_PIN_BCLK3			(0x0 << 5)
-#define RT5665_GP6_PIN_PDM_SCL			(0x1 << 5)
+#define RT5665_GP6_PIN_BCLK3			(0x1 << 5)
+#define RT5665_GP6_PIN_PDM_SCL			(0x2 << 5)
 #define RT5665_GP7_PIN_MASK			(0x3 << 3)
 #define RT5665_GP7_PIN_SFT			3
 #define RT5665_GP7_PIN_GPIO7			(0x0 << 3)
diff --git a/sound/soc/codecs/sgtl5000.c b/sound/soc/codecs/sgtl5000.c
index 8f6814c1eb6b..80f6d1da7095 100644
--- a/sound/soc/codecs/sgtl5000.c
+++ b/sound/soc/codecs/sgtl5000.c
@@ -409,7 +409,7 @@ static int dac_put_volsw(struct snd_kcontrol *kcontrol,
 static int avc_get_threshold(struct snd_kcontrol *kcontrol,
 			     struct snd_ctl_elem_value *ucontrol)
 {
-	struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
+	struct snd_soc_codec *codec = snd_soc_kcontrol_codec(kcontrol);
 	int db, i;
 	u16 reg = snd_soc_read(codec, SGTL5000_DAP_AVC_THRESHOLD);
 
@@ -442,7 +442,7 @@ static int avc_get_threshold(struct snd_kcontrol *kcontrol,
 static int avc_put_threshold(struct snd_kcontrol *kcontrol,
 			     struct snd_ctl_elem_value *ucontrol)
 {
-	struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
+	struct snd_soc_codec *codec = snd_soc_kcontrol_codec(kcontrol);
 	int db;
 	u16 reg;
 
diff --git a/sound/soc/fsl/imx-ssi.c b/sound/soc/fsl/imx-ssi.c
index b95132e2f9dc..06790615e04e 100644
--- a/sound/soc/fsl/imx-ssi.c
+++ b/sound/soc/fsl/imx-ssi.c
@@ -527,6 +527,10 @@ static int imx_ssi_probe(struct platform_device *pdev)
 	}
 
 	ssi->irq = platform_get_irq(pdev, 0);
+	if (ssi->irq < 0) {
+		dev_err(&pdev->dev, "Failed to get IRQ: %d\n", ssi->irq);
+		return ssi->irq;
+	}
 
 	ssi->clk = devm_clk_get(&pdev->dev, NULL);
 	if (IS_ERR(ssi->clk)) {
diff --git a/sound/soc/generic/audio-graph-card.c b/sound/soc/generic/audio-graph-card.c
index 105ec3a6e30d..de2550c7a96b 100644
--- a/sound/soc/generic/audio-graph-card.c
+++ b/sound/soc/generic/audio-graph-card.c
@@ -224,9 +224,11 @@ static int asoc_graph_card_parse_of(struct graph_card_data *priv)
 
 	of_for_each_phandle(&it, rc, node, "dais", NULL, 0) {
 		ret = asoc_graph_card_dai_link_of(it.node, priv, idx++);
-		of_node_put(it.node);
-		if (ret < 0)
+		if (ret < 0) {
+			of_node_put(it.node);
+
 			return ret;
+		}
 	}
 
 	return asoc_simple_card_parse_card_name(card, NULL);
@@ -239,10 +241,8 @@ static int asoc_graph_get_dais_count(struct device *dev)
 	int count = 0;
 	int rc;
 
-	of_for_each_phandle(&it, rc, node, "dais", NULL, 0) {
+	of_for_each_phandle(&it, rc, node, "dais", NULL, 0)
 		count++;
-		of_node_put(it.node);
-	}
 
 	return count;
 }
diff --git a/sound/soc/generic/audio-graph-scu-card.c b/sound/soc/generic/audio-graph-scu-card.c
index dcd2df37bc3b..758ac06f3a99 100644
--- a/sound/soc/generic/audio-graph-scu-card.c
+++ b/sound/soc/generic/audio-graph-scu-card.c
@@ -215,7 +215,6 @@ static int asoc_graph_card_parse_of(struct graph_card_data *priv)
 		codec_ep = of_graph_get_remote_endpoint(cpu_ep);
 		rcpu_ep  = of_graph_get_remote_endpoint(codec_ep);
 
-		of_node_put(cpu_port);
 		of_node_put(cpu_ep);
 		of_node_put(codec_ep);
 		of_node_put(rcpu_ep);
@@ -232,8 +231,10 @@ static int asoc_graph_card_parse_of(struct graph_card_data *priv)
 
 		ret = asoc_simple_card_parse_daifmt(dev, cpu_ep, codec_ep,
 							    NULL, &daifmt);
-		if (ret < 0)
+		if (ret < 0) {
+			of_node_put(cpu_port);
 			goto parse_of_err;
+		}
 	}
 
 	dai_idx = 0;
@@ -250,7 +251,6 @@ static int asoc_graph_card_parse_of(struct graph_card_data *priv)
 			codec_ep = of_graph_get_remote_endpoint(cpu_ep);
 			codec_port = of_graph_get_port_parent(codec_ep);
 
-			of_node_put(cpu_port);
 			of_node_put(cpu_ep);
 			of_node_put(codec_ep);
 			of_node_put(codec_port);
@@ -266,13 +266,17 @@ static int asoc_graph_card_parse_of(struct graph_card_data *priv)
 
 				/* Back-End (= Codec) */
 				ret = asoc_graph_card_dai_link_of(codec_ep, priv, daifmt, dai_idx++, 0);
-				if (ret < 0)
+				if (ret < 0) {
+					of_node_put(cpu_port);
 					goto parse_of_err;
+				}
 			} else {
 				/* Front-End (= CPU) */
 				ret = asoc_graph_card_dai_link_of(cpu_ep, priv, daifmt, dai_idx++, 1);
-				if (ret < 0)
+				if (ret < 0) {
+					of_node_put(cpu_port);
 					goto parse_of_err;
+				}
 			}
 		}
 	}
@@ -306,7 +310,6 @@ static int asoc_graph_get_dais_count(struct device *dev)
 		codec_ep = of_graph_get_remote_endpoint(cpu_ep);
 		codec_port = of_graph_get_port_parent(codec_ep);
 
-		of_node_put(cpu_port);
 		of_node_put(cpu_ep);
 		of_node_put(codec_ep);
 		of_node_put(codec_port);
diff --git a/sound/soc/generic/simple-card-utils.c b/sound/soc/generic/simple-card-utils.c
index 26d64fa40c9c..7d7ab4aee42e 100644
--- a/sound/soc/generic/simple-card-utils.c
+++ b/sound/soc/generic/simple-card-utils.c
@@ -263,6 +263,9 @@ static int asoc_simple_card_get_dai_id(struct device_node *ep)
 			id = i;
 		i++;
 	}
+
+	of_node_put(node);
+
 	if (id < 0)
 		return -ENODEV;
 
@@ -282,11 +285,6 @@ int asoc_simple_card_parse_graph_dai(struct device_node *ep,
 	if (!dai_name)
 		return 0;
 
-	/*
-	 * of_graph_get_port_parent() will call
-	 * of_node_put(). So, call of_node_get() here
-	 */
-	of_node_get(ep);
 	node = of_graph_get_port_parent(ep);
 
 	/* Get dai->name */
diff --git a/sound/soc/intel/boards/kbl_rt5663_rt5514_max98927.c b/sound/soc/intel/boards/kbl_rt5663_rt5514_max98927.c
index 3fe4a0807095..cfd89ca6a18d 100644
--- a/sound/soc/intel/boards/kbl_rt5663_rt5514_max98927.c
+++ b/sound/soc/intel/boards/kbl_rt5663_rt5514_max98927.c
@@ -319,7 +319,9 @@ static int kabylake_rt5663_hw_params(struct snd_pcm_substream *substream,
 	int ret;
 
 	/* use ASRC for internal clocks, as PLL rate isn't multiple of BCLK */
-	rt5663_sel_asrc_clk_src(codec_dai->codec, RT5663_DA_STEREO_FILTER, 1);
+	rt5663_sel_asrc_clk_src(codec_dai->codec,
+			RT5663_DA_STEREO_FILTER | RT5663_AD_STEREO_FILTER,
+			RT5663_CLK_SEL_I2S1_ASRC);
 
 	ret = snd_soc_dai_set_sysclk(codec_dai,
 			RT5663_SCLK_S_MCLK, 24576000, SND_SOC_CLOCK_IN);
@@ -349,19 +351,10 @@ static int kabylake_ssp0_hw_params(struct snd_pcm_substream *substream,
 				return ret;
 			}
 
-			ret = snd_soc_dai_set_pll(codec_dai, 0,
-				RT5514_PLL1_S_BCLK, RT5514_AIF1_BCLK_FREQ,
-						RT5514_AIF1_SYSCLK_FREQ);
-			if (ret < 0) {
-				dev_err(rtd->dev, "set bclk err: %d\n", ret);
-				return ret;
-			}
-
 			ret = snd_soc_dai_set_sysclk(codec_dai,
-				RT5514_SCLK_S_PLL1, RT5514_AIF1_SYSCLK_FREQ,
-							SND_SOC_CLOCK_IN);
+				RT5514_SCLK_S_MCLK, 24576000, SND_SOC_CLOCK_IN);
 			if (ret < 0) {
-				dev_err(rtd->dev, "set sclk err: %d\n", ret);
+				dev_err(rtd->dev, "set sysclk err: %d\n", ret);
 				return ret;
 			}
 		}
diff --git a/sound/soc/intel/skylake/skl-messages.c b/sound/soc/intel/skylake/skl-messages.c
index eca85827dbd2..fb2f1f603f3c 100644
--- a/sound/soc/intel/skylake/skl-messages.c
+++ b/sound/soc/intel/skylake/skl-messages.c
@@ -540,6 +540,14 @@ static void skl_setup_cpr_gateway_cfg(struct skl_sst *ctx,
 	cpr_mconfig->gtw_cfg.dma_buffer_size =
 				mconfig->dma_buffer_size * dma_io_buf;
 
+	/* fallback to 2ms default value */
+	if (!cpr_mconfig->gtw_cfg.dma_buffer_size) {
+		if (mconfig->hw_conn_type == SKL_CONN_SOURCE)
+			cpr_mconfig->gtw_cfg.dma_buffer_size = 2 * mconfig->obs;
+		else
+			cpr_mconfig->gtw_cfg.dma_buffer_size = 2 * mconfig->ibs;
+	}
+
 	cpr_mconfig->cpr_feature_mask = 0;
 	cpr_mconfig->gtw_cfg.config_length  = 0;
 
diff --git a/sound/soc/intel/skylake/skl.c b/sound/soc/intel/skylake/skl.c
index 334917ee41cf..9e3f8c04dd32 100644
--- a/sound/soc/intel/skylake/skl.c
+++ b/sound/soc/intel/skylake/skl.c
@@ -941,6 +941,7 @@ static struct sst_acpi_mach sst_bxtp_devdata[] = {
 		.machine_quirk = sst_acpi_codec_list,
 		.quirk_data = &bxt_codecs,
 	},
+	{}
 };
 
 static struct sst_acpi_mach sst_kbl_devdata[] = {
@@ -991,6 +992,7 @@ static struct sst_acpi_mach sst_glk_devdata[] = {
 		.drv_name = "glk_alc298s_i2s",
 		.fw_filename = "intel/dsp_fw_glk.bin",
 	},
+	{}
 };
 
 /* PCI IDs */
diff --git a/sound/soc/pxa/Kconfig b/sound/soc/pxa/Kconfig
index 960744e46edc..484ab3c2ad67 100644
--- a/sound/soc/pxa/Kconfig
+++ b/sound/soc/pxa/Kconfig
@@ -1,6 +1,7 @@
 config SND_PXA2XX_SOC
 	tristate "SoC Audio for the Intel PXA2xx chip"
 	depends on ARCH_PXA || COMPILE_TEST
+	depends on HAS_DMA
 	select SND_PXA2XX_LIB
 	help
 	  Say Y or M if you want to add support for codecs attached to
diff --git a/sound/soc/samsung/odroid.c b/sound/soc/samsung/odroid.c
index 0c0b00e40646..0834319ead42 100644
--- a/sound/soc/samsung/odroid.c
+++ b/sound/soc/samsung/odroid.c
@@ -42,17 +42,17 @@ static int odroid_card_hw_params(struct snd_pcm_substream *substream,
 	switch (params_rate(params)) {
 	case 32000:
 	case 64000:
-		pll_freq = 131072000U;
+		pll_freq = 131072006U;
 		break;
 	case 44100:
 	case 88200:
 	case 176400:
-		pll_freq = 180633600U;
+		pll_freq = 180633609U;
 		break;
 	case 48000:
 	case 96000:
 	case 192000:
-		pll_freq = 196608000U;
+		pll_freq = 196608001U;
 		break;
 	default:
 		return -EINVAL;
diff --git a/sound/soc/sh/hac.c b/sound/soc/sh/hac.c
index 84c51037a7d0..624aaf569fef 100644
--- a/sound/soc/sh/hac.c
+++ b/sound/soc/sh/hac.c
@@ -315,6 +315,8 @@ static const struct snd_soc_component_driver sh4_hac_component = {
 
 static int hac_soc_platform_probe(struct platform_device *pdev)
 {
+	int ret;
+
 	ret = snd_soc_set_ac97_ops(&hac_ac97_ops);
 	if (ret != 0)
 		return ret;
diff --git a/sound/soc/soc-core.c b/sound/soc/soc-core.c
index 921622a01944..13c875e2392a 100644
--- a/sound/soc/soc-core.c
+++ b/sound/soc/soc-core.c
@@ -3171,8 +3171,6 @@ static int snd_soc_component_initialize(struct snd_soc_component *component,
 	component->remove = component->driver->remove;
 	component->suspend = component->driver->suspend;
 	component->resume = component->driver->resume;
-	component->pcm_new = component->driver->pcm_new;
-	component->pcm_free = component->driver->pcm_free;
 
 	dapm = &component->dapm;
 	dapm->dev = dev;
@@ -3360,25 +3358,6 @@ static void snd_soc_platform_drv_remove(struct snd_soc_component *component)
 	platform->driver->remove(platform);
 }
 
-static int snd_soc_platform_drv_pcm_new(struct snd_soc_pcm_runtime *rtd)
-{
-	struct snd_soc_platform *platform = rtd->platform;
-
-	if (platform->driver->pcm_new)
-		return platform->driver->pcm_new(rtd);
-	else
-		return 0;
-}
-
-static void snd_soc_platform_drv_pcm_free(struct snd_pcm *pcm)
-{
-	struct snd_soc_pcm_runtime *rtd = pcm->private_data;
-	struct snd_soc_platform *platform = rtd->platform;
-
-	if (platform->driver->pcm_free)
-		platform->driver->pcm_free(pcm);
-}
-
 /**
  * snd_soc_add_platform - Add a platform to the ASoC core
  * @dev: The parent device for the platform
@@ -3402,10 +3381,6 @@ int snd_soc_add_platform(struct device *dev, struct snd_soc_platform *platform,
 		platform->component.probe = snd_soc_platform_drv_probe;
 	if (platform_drv->remove)
 		platform->component.remove = snd_soc_platform_drv_remove;
-	if (platform_drv->pcm_new)
-		platform->component.pcm_new = snd_soc_platform_drv_pcm_new;
-	if (platform_drv->pcm_free)
-		platform->component.pcm_free = snd_soc_platform_drv_pcm_free;
 
 #ifdef CONFIG_DEBUG_FS
 	platform->component.debugfs_prefix = "platform";
@@ -4113,6 +4088,8 @@ int snd_soc_get_dai_id(struct device_node *ep)
 	}
 	mutex_unlock(&client_mutex);
 
+	of_node_put(node);
+
 	return ret;
 }
 EXPORT_SYMBOL_GPL(snd_soc_get_dai_id);
diff --git a/sound/soc/soc-pcm.c b/sound/soc/soc-pcm.c
index dcc5ece08668..7d3859e1a7b9 100644
--- a/sound/soc/soc-pcm.c
+++ b/sound/soc/soc-pcm.c
@@ -181,6 +181,10 @@ int dpcm_dapm_stream_event(struct snd_soc_pcm_runtime *fe, int dir,
 		dev_dbg(be->dev, "ASoC: BE %s event %d dir %d\n",
 				be->dai_link->name, event, dir);
 
+		if ((event == SND_SOC_DAPM_STREAM_STOP) &&
+		    (be->dpcm[dir].users >= 1))
+			continue;
+
 		snd_soc_dapm_stream_event(be, dir, event);
 	}
 
@@ -2628,25 +2632,12 @@ static int dpcm_fe_dai_close(struct snd_pcm_substream *fe_substream)
 	return ret;
 }
 
-static void soc_pcm_free(struct snd_pcm *pcm)
-{
-	struct snd_soc_pcm_runtime *rtd = pcm->private_data;
-	struct snd_soc_component *component;
-
-	list_for_each_entry(component, &rtd->card->component_dev_list,
-			    card_list) {
-		if (component->pcm_free)
-			component->pcm_free(pcm);
-	}
-}
-
 /* create a new pcm */
 int soc_new_pcm(struct snd_soc_pcm_runtime *rtd, int num)
 {
 	struct snd_soc_platform *platform = rtd->platform;
 	struct snd_soc_dai *codec_dai;
 	struct snd_soc_dai *cpu_dai = rtd->cpu_dai;
-	struct snd_soc_component *component;
 	struct snd_pcm *pcm;
 	char new_name[64];
 	int ret = 0, playback = 0, capture = 0;
@@ -2756,18 +2747,17 @@ int soc_new_pcm(struct snd_soc_pcm_runtime *rtd, int num)
 	if (capture)
 		snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &rtd->ops);
 
-	list_for_each_entry(component, &rtd->card->component_dev_list, card_list) {
-		if (component->pcm_new) {
-			ret = component->pcm_new(rtd);
-			if (ret < 0) {
-				dev_err(component->dev,
-					"ASoC: pcm constructor failed: %d\n",
-					ret);
-				return ret;
-			}
+	if (platform->driver->pcm_new) {
+		ret = platform->driver->pcm_new(rtd);
+		if (ret < 0) {
+			dev_err(platform->dev,
+				"ASoC: pcm constructor failed: %d\n",
+				ret);
+			return ret;
 		}
 	}
-	pcm->private_free = soc_pcm_free;
+
+	pcm->private_free = platform->driver->pcm_free;
 out:
 	dev_info(rtd->card->dev, "%s <-> %s mapping ok\n",
 		 (rtd->num_codecs > 1) ? "multicodec" : rtd->codec_dai->name,
diff --git a/sound/soc/ux500/mop500.c b/sound/soc/ux500/mop500.c
index b50f68a439ce..ba9fc099cf67 100644
--- a/sound/soc/ux500/mop500.c
+++ b/sound/soc/ux500/mop500.c
@@ -33,6 +33,7 @@ static struct snd_soc_dai_link mop500_dai_links[] = {
 		.stream_name = "ab8500_0",
 		.cpu_dai_name = "ux500-msp-i2s.1",
 		.codec_dai_name = "ab8500-codec-dai.0",
+		.platform_name = "ux500-msp-i2s.1",
 		.codec_name = "ab8500-codec.0",
 		.init = mop500_ab8500_machine_init,
 		.ops = mop500_ab8500_ops,
@@ -42,6 +43,7 @@ static struct snd_soc_dai_link mop500_dai_links[] = {
 		.stream_name = "ab8500_1",
 		.cpu_dai_name = "ux500-msp-i2s.3",
 		.codec_dai_name = "ab8500-codec-dai.1",
+		.platform_name = "ux500-msp-i2s.3",
 		.codec_name = "ab8500-codec.0",
 		.init = NULL,
 		.ops = mop500_ab8500_ops,
@@ -85,6 +87,8 @@ static int mop500_of_probe(struct platform_device *pdev,
 	for (i = 0; i < 2; i++) {
 		mop500_dai_links[i].cpu_of_node = msp_np[i];
 		mop500_dai_links[i].cpu_dai_name = NULL;
+		mop500_dai_links[i].platform_of_node = msp_np[i];
+		mop500_dai_links[i].platform_name = NULL;
 		mop500_dai_links[i].codec_of_node = codec_np;
 		mop500_dai_links[i].codec_name = NULL;
 	}
diff --git a/sound/usb/mixer.c b/sound/usb/mixer.c
index 082736c539bc..e630813c5008 100644
--- a/sound/usb/mixer.c
+++ b/sound/usb/mixer.c
@@ -542,6 +542,8 @@ int snd_usb_mixer_vol_tlv(struct snd_kcontrol *kcontrol, int op_flag,
 
 	if (size < sizeof(scale))
 		return -ENOMEM;
+	if (cval->min_mute)
+		scale[0] = SNDRV_CTL_TLVT_DB_MINMAX_MUTE;
 	scale[2] = cval->dBmin;
 	scale[3] = cval->dBmax;
 	if (copy_to_user(_tlv, scale, sizeof(scale)))
diff --git a/sound/usb/mixer.h b/sound/usb/mixer.h
index 3417ef347e40..2b4b067646ab 100644
--- a/sound/usb/mixer.h
+++ b/sound/usb/mixer.h
@@ -64,6 +64,7 @@ struct usb_mixer_elem_info {
 	int cached;
 	int cache_val[MAX_CHANNELS];
 	u8 initialized;
+	u8 min_mute;
 	void *private_data;
 };
 
diff --git a/sound/usb/mixer_quirks.c b/sound/usb/mixer_quirks.c
index e3d1dec48ee4..e1e7ce9ab217 100644
--- a/sound/usb/mixer_quirks.c
+++ b/sound/usb/mixer_quirks.c
@@ -1878,6 +1878,12 @@ void snd_usb_mixer_fu_apply_quirk(struct usb_mixer_interface *mixer,
 		if (unitid == 7 && cval->control == UAC_FU_VOLUME)
 			snd_dragonfly_quirk_db_scale(mixer, cval, kctl);
 		break;
+	/* lowest playback value is muted on C-Media devices */
+	case USB_ID(0x0d8c, 0x000c):
+	case USB_ID(0x0d8c, 0x0014):
+		if (strstr(kctl->id.name, "Playback"))
+			cval->min_mute = 1;
+		break;
 	}
 }
 
diff --git a/sound/usb/quirks.c b/sound/usb/quirks.c
index d7b0b0a3a2db..6a03f9697039 100644
--- a/sound/usb/quirks.c
+++ b/sound/usb/quirks.c
@@ -1142,6 +1142,7 @@ bool snd_usb_get_sample_rate_quirk(struct snd_usb_audio *chip)
 	case USB_ID(0x0556, 0x0014): /* Phoenix Audio TMX320VC */
 	case USB_ID(0x05A3, 0x9420): /* ELP HD USB Camera */
 	case USB_ID(0x074D, 0x3553): /* Outlaw RR2150 (Micronas UAC3553B) */
+	case USB_ID(0x1395, 0x740a): /* Sennheiser DECT */
 	case USB_ID(0x1901, 0x0191): /* GE B850V3 CP2114 audio interface */
 	case USB_ID(0x1de7, 0x0013): /* Phoenix Audio MT202exe */
 	case USB_ID(0x1de7, 0x0014): /* Phoenix Audio TMX320 */
@@ -1374,6 +1375,10 @@ u64 snd_usb_interface_dsd_format_quirks(struct snd_usb_audio *chip,
 			}
 		}
 		break;
+	case USB_ID(0x16d0, 0x0a23):
+		if (fp->altsetting == 2)
+			return SNDRV_PCM_FMTBIT_DSD_U32_BE;
+		break;
 
 	default:
 		break;
diff --git a/tools/build/feature/test-bpf.c b/tools/build/feature/test-bpf.c
index 7598361ef1f1..da2172ff9662 100644
--- a/tools/build/feature/test-bpf.c
+++ b/tools/build/feature/test-bpf.c
@@ -11,6 +11,8 @@
 #  define __NR_bpf 280
 # elif defined(__sparc__)
 #  define __NR_bpf 349
+# elif defined(__s390__)
+#  define __NR_bpf 351
 # else
 #  error __NR_bpf not defined. libbpf does not support your arch.
 # endif
diff --git a/tools/kvm/kvm_stat/kvm_stat b/tools/kvm/kvm_stat/kvm_stat
index dd8f00cfb8b4..32283d88701a 100755
--- a/tools/kvm/kvm_stat/kvm_stat
+++ b/tools/kvm/kvm_stat/kvm_stat
@@ -474,7 +474,7 @@ class Provider(object):
     @staticmethod
     def is_field_wanted(fields_filter, field):
         """Indicate whether field is valid according to fields_filter."""
-        if not fields_filter:
+        if not fields_filter or fields_filter == "help":
             return True
         return re.match(fields_filter, field) is not None
 
@@ -1413,8 +1413,8 @@ performance.
 
 Requirements:
 - Access to:
-    /sys/kernel/debug/kvm
-    /sys/kernel/debug/trace/events/*
+    %s
+    %s/events/*
     /proc/pid/task
 - /proc/sys/kernel/perf_event_paranoid < 1 if user has no
   CAP_SYS_ADMIN and perf events are used.
@@ -1434,7 +1434,7 @@ Interactive Commands:
    s     set update interval
    x     toggle reporting of stats for individual child trace events
 Press any other key to refresh statistics immediately.
-"""
+""" % (PATH_DEBUGFS_KVM, PATH_DEBUGFS_TRACING)
 
     class PlainHelpFormatter(optparse.IndentedHelpFormatter):
         def format_description(self, description):
@@ -1496,7 +1496,8 @@ Press any other key to refresh statistics immediately.
                          action='store',
                          default=DEFAULT_REGEX,
                          dest='fields',
-                         help='fields to display (regex)',
+                         help='''fields to display (regex)
+                                 "-f help" for a list of available events''',
                          )
     optparser.add_option('-p', '--pid',
                          action='store',
@@ -1559,6 +1560,17 @@ def main():
 
     stats = Stats(options)
 
+    if options.fields == "help":
+        event_list = "\n"
+        s = stats.get()
+        for key in s.keys():
+            if key.find('(') != -1:
+                key = key[0:key.find('(')]
+            if event_list.find('\n' + key + '\n') == -1:
+                event_list += key + '\n'
+        sys.stdout.write(event_list)
+        return ""
+
     if options.log:
         log(stats)
     elif not options.once:
diff --git a/tools/lib/bpf/bpf.c b/tools/lib/bpf/bpf.c
index 7e0405e1651d..e5bbb090bf88 100644
--- a/tools/lib/bpf/bpf.c
+++ b/tools/lib/bpf/bpf.c
@@ -39,6 +39,8 @@
 #  define __NR_bpf 280
 # elif defined(__sparc__)
 #  define __NR_bpf 349
+# elif defined(__s390__)
+#  define __NR_bpf 351
 # else
 #  error __NR_bpf not defined. libbpf does not support your arch.
 # endif
@@ -120,7 +122,7 @@ int bpf_load_program(enum bpf_prog_type type, const struct bpf_insn *insns,
 int bpf_verify_program(enum bpf_prog_type type, const struct bpf_insn *insns,
 		       size_t insns_cnt, int strict_alignment,
 		       const char *license, __u32 kern_version,
-		       char *log_buf, size_t log_buf_sz)
+		       char *log_buf, size_t log_buf_sz, int log_level)
 {
 	union bpf_attr attr;
 
@@ -131,7 +133,7 @@ int bpf_verify_program(enum bpf_prog_type type, const struct bpf_insn *insns,
 	attr.license = ptr_to_u64(license);
 	attr.log_buf = ptr_to_u64(log_buf);
 	attr.log_size = log_buf_sz;
-	attr.log_level = 2;
+	attr.log_level = log_level;
 	log_buf[0] = 0;
 	attr.kern_version = kern_version;
 	attr.prog_flags = strict_alignment ? BPF_F_STRICT_ALIGNMENT : 0;
@@ -314,7 +316,6 @@ int bpf_obj_get_info_by_fd(int prog_fd, void *info, __u32 *info_len)
 	int err;
 
 	bzero(&attr, sizeof(attr));
-	bzero(info, *info_len);
 	attr.info.bpf_fd = prog_fd;
 	attr.info.info_len = *info_len;
 	attr.info.info = ptr_to_u64(info);
diff --git a/tools/lib/bpf/bpf.h b/tools/lib/bpf/bpf.h
index 16de44a14b48..418c86e69bcb 100644
--- a/tools/lib/bpf/bpf.h
+++ b/tools/lib/bpf/bpf.h
@@ -38,7 +38,7 @@ int bpf_load_program(enum bpf_prog_type type, const struct bpf_insn *insns,
 int bpf_verify_program(enum bpf_prog_type type, const struct bpf_insn *insns,
 		       size_t insns_cnt, int strict_alignment,
 		       const char *license, __u32 kern_version,
-		       char *log_buf, size_t log_buf_sz);
+		       char *log_buf, size_t log_buf_sz, int log_level);
 
 int bpf_map_update_elem(int fd, const void *key, const void *value,
 			__u64 flags);
diff --git a/tools/lib/bpf/libbpf.c b/tools/lib/bpf/libbpf.c
index 1a2c07eb7795..8c67a90dbd82 100644
--- a/tools/lib/bpf/libbpf.c
+++ b/tools/lib/bpf/libbpf.c
@@ -879,7 +879,8 @@ bpf_object__create_maps(struct bpf_object *obj)
 			size_t j;
 			int err = *pfd;
 
-			pr_warning("failed to create map: %s\n",
+			pr_warning("failed to create map (name: '%s'): %s\n",
+				   obj->maps[i].name,
 				   strerror(errno));
 			for (j = 0; j < i; j++)
 				zclose(obj->maps[j].fd);
diff --git a/tools/perf/builtin-kmem.c b/tools/perf/builtin-kmem.c
index 0a8a1c45af87..a1497c516d85 100644
--- a/tools/perf/builtin-kmem.c
+++ b/tools/perf/builtin-kmem.c
@@ -643,7 +643,7 @@ static const struct {
 	{ "__GFP_FS",			"F" },
 	{ "__GFP_COLD",			"CO" },
 	{ "__GFP_NOWARN",		"NWR" },
-	{ "__GFP_REPEAT",		"R" },
+	{ "__GFP_RETRY_MAYFAIL",	"R" },
 	{ "__GFP_NOFAIL",		"NF" },
 	{ "__GFP_NORETRY",		"NR" },
 	{ "__GFP_COMP",			"C" },
diff --git a/tools/perf/ui/browser.c b/tools/perf/ui/browser.c
index a4d3762cd825..83874b0e266c 100644
--- a/tools/perf/ui/browser.c
+++ b/tools/perf/ui/browser.c
@@ -704,7 +704,7 @@ static void __ui_browser__line_arrow_down(struct ui_browser *browser,
 		ui_browser__gotorc(browser, row, column + 1);
 		SLsmg_draw_hline(2);
 
-		if (row++ == 0)
+		if (++row == 0)
 			goto out;
 	} else
 		row = 0;
diff --git a/tools/perf/util/evsel.c b/tools/perf/util/evsel.c
index 87b431886670..413f74df08de 100644
--- a/tools/perf/util/evsel.c
+++ b/tools/perf/util/evsel.c
@@ -273,7 +273,7 @@ struct perf_evsel *perf_evsel__new_cycles(void)
 	struct perf_event_attr attr = {
 		.type	= PERF_TYPE_HARDWARE,
 		.config	= PERF_COUNT_HW_CPU_CYCLES,
-		.exclude_kernel	= 1,
+		.exclude_kernel	= geteuid() != 0,
 	};
 	struct perf_evsel *evsel;
 
@@ -298,8 +298,10 @@ struct perf_evsel *perf_evsel__new_cycles(void)
 		goto out;
 
 	/* use asprintf() because free(evsel) assumes name is allocated */
-	if (asprintf(&evsel->name, "cycles%.*s",
-		     attr.precise_ip ? attr.precise_ip + 1 : 0, ":ppp") < 0)
+	if (asprintf(&evsel->name, "cycles%s%s%.*s",
+		     (attr.precise_ip || attr.exclude_kernel) ? ":" : "",
+		     attr.exclude_kernel ? "u" : "",
+		     attr.precise_ip ? attr.precise_ip + 1 : 0, "ppp") < 0)
 		goto error_free;
 out:
 	return evsel;
diff --git a/tools/perf/util/machine.c b/tools/perf/util/machine.c
index 5de2b86b9880..2e9eb6aa3ce2 100644
--- a/tools/perf/util/machine.c
+++ b/tools/perf/util/machine.c
@@ -2209,7 +2209,7 @@ int machine__get_kernel_start(struct machine *machine)
 	machine->kernel_start = 1ULL << 63;
 	if (map) {
 		err = map__load(map);
-		if (map->start)
+		if (!err)
 			machine->kernel_start = map->start;
 	}
 	return err;
diff --git a/tools/testing/selftests/bpf/Makefile b/tools/testing/selftests/bpf/Makefile
index 2ca51a8a588c..153c3a181a4c 100644
--- a/tools/testing/selftests/bpf/Makefile
+++ b/tools/testing/selftests/bpf/Makefile
@@ -37,6 +37,5 @@ CLANG ?= clang
 
 %.o: %.c
 	$(CLANG) -I. -I./include/uapi -I../../../include/uapi \
-		-I../../../../samples/bpf/ \
 		-Wno-compare-distinct-pointer-types \
 		-O2 -target bpf -c $< -o $@
diff --git a/tools/testing/selftests/bpf/bpf_endian.h b/tools/testing/selftests/bpf/bpf_endian.h
index 487cbfb89beb..74af266aa512 100644
--- a/tools/testing/selftests/bpf/bpf_endian.h
+++ b/tools/testing/selftests/bpf/bpf_endian.h
@@ -23,11 +23,19 @@
 # define __bpf_htons(x)			__builtin_bswap16(x)
 # define __bpf_constant_ntohs(x)	___constant_swab16(x)
 # define __bpf_constant_htons(x)	___constant_swab16(x)
+# define __bpf_ntohl(x)			__builtin_bswap32(x)
+# define __bpf_htonl(x)			__builtin_bswap32(x)
+# define __bpf_constant_ntohl(x)	___constant_swab32(x)
+# define __bpf_constant_htonl(x)	___constant_swab32(x)
 #elif __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__
 # define __bpf_ntohs(x)			(x)
 # define __bpf_htons(x)			(x)
 # define __bpf_constant_ntohs(x)	(x)
 # define __bpf_constant_htons(x)	(x)
+# define __bpf_ntohl(x)			(x)
+# define __bpf_htonl(x)			(x)
+# define __bpf_constant_ntohl(x)	(x)
+# define __bpf_constant_htonl(x)	(x)
 #else
 # error "Fix your compiler's __BYTE_ORDER__?!"
 #endif
@@ -38,5 +46,11 @@
 #define bpf_ntohs(x)				\
 	(__builtin_constant_p(x) ?		\
 	 __bpf_constant_ntohs(x) : __bpf_ntohs(x))
+#define bpf_htonl(x)				\
+	(__builtin_constant_p(x) ?		\
+	 __bpf_constant_htonl(x) : __bpf_htonl(x))
+#define bpf_ntohl(x)				\
+	(__builtin_constant_p(x) ?		\
+	 __bpf_constant_ntohl(x) : __bpf_ntohl(x))
 
 #endif /* __BPF_ENDIAN__ */
diff --git a/samples/bpf/bpf_helpers.h b/tools/testing/selftests/bpf/bpf_helpers.h
index d50ac342dc92..d50ac342dc92 100644
--- a/samples/bpf/bpf_helpers.h
+++ b/tools/testing/selftests/bpf/bpf_helpers.h
diff --git a/tools/testing/selftests/bpf/test_align.c b/tools/testing/selftests/bpf/test_align.c
index bccebd935907..29793694cbc7 100644
--- a/tools/testing/selftests/bpf/test_align.c
+++ b/tools/testing/selftests/bpf/test_align.c
@@ -380,7 +380,7 @@ static int do_test_single(struct bpf_align_test *test)
 	prog_len = probe_filter_length(prog);
 	fd_prog = bpf_verify_program(prog_type ? : BPF_PROG_TYPE_SOCKET_FILTER,
 				     prog, prog_len, 1, "GPL", 0,
-				     bpf_vlog, sizeof(bpf_vlog));
+				     bpf_vlog, sizeof(bpf_vlog), 2);
 	if (fd_prog < 0) {
 		printf("Failed to load program.\n");
 		printf("%s", bpf_vlog);
diff --git a/tools/testing/selftests/bpf/test_pkt_md_access.c b/tools/testing/selftests/bpf/test_pkt_md_access.c
index 71729d47eb85..7956302ecdf2 100644
--- a/tools/testing/selftests/bpf/test_pkt_md_access.c
+++ b/tools/testing/selftests/bpf/test_pkt_md_access.c
@@ -12,12 +12,23 @@
 
 int _version SEC("version") = 1;
 
+#if  __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__
 #define TEST_FIELD(TYPE, FIELD, MASK)					\
 	{								\
 		TYPE tmp = *(volatile TYPE *)&skb->FIELD;		\
 		if (tmp != ((*(volatile __u32 *)&skb->FIELD) & MASK))	\
 			return TC_ACT_SHOT;				\
 	}
+#else
+#define TEST_FIELD_OFFSET(a, b)	((sizeof(a) - sizeof(b)) / sizeof(b))
+#define TEST_FIELD(TYPE, FIELD, MASK)					\
+	{								\
+		TYPE tmp = *((volatile TYPE *)&skb->FIELD +		\
+			      TEST_FIELD_OFFSET(skb->FIELD, TYPE));	\
+		if (tmp != ((*(volatile __u32 *)&skb->FIELD) & MASK))	\
+			return TC_ACT_SHOT;				\
+	}
+#endif
 
 SEC("test1")
 int process(struct __sk_buff *skb)
diff --git a/tools/testing/selftests/bpf/test_progs.c b/tools/testing/selftests/bpf/test_progs.c
index 5855cd3d3d45..1f7dd35551b9 100644
--- a/tools/testing/selftests/bpf/test_progs.c
+++ b/tools/testing/selftests/bpf/test_progs.c
@@ -340,6 +340,7 @@ static void test_bpf_obj_id(void)
 
 		/* Check getting prog info */
 		info_len = sizeof(struct bpf_prog_info) * 2;
+		bzero(&prog_infos[i], info_len);
 		prog_infos[i].jited_prog_insns = ptr_to_u64(jited_insns);
 		prog_infos[i].jited_prog_len = sizeof(jited_insns);
 		prog_infos[i].xlated_prog_insns = ptr_to_u64(xlated_insns);
@@ -369,6 +370,7 @@ static void test_bpf_obj_id(void)
 
 		/* Check getting map info */
 		info_len = sizeof(struct bpf_map_info) * 2;
+		bzero(&map_infos[i], info_len);
 		err = bpf_obj_get_info_by_fd(map_fds[i], &map_infos[i],
 					     &info_len);
 		if (CHECK(err ||
@@ -394,7 +396,7 @@ static void test_bpf_obj_id(void)
 	nr_id_found = 0;
 	next_id = 0;
 	while (!bpf_prog_get_next_id(next_id, &next_id)) {
-		struct bpf_prog_info prog_info;
+		struct bpf_prog_info prog_info = {};
 		int prog_fd;
 
 		info_len = sizeof(prog_info);
@@ -418,6 +420,8 @@ static void test_bpf_obj_id(void)
 		nr_id_found++;
 
 		err = bpf_obj_get_info_by_fd(prog_fd, &prog_info, &info_len);
+		prog_infos[i].jited_prog_insns = 0;
+		prog_infos[i].xlated_prog_insns = 0;
 		CHECK(err || info_len != sizeof(struct bpf_prog_info) ||
 		      memcmp(&prog_info, &prog_infos[i], info_len),
 		      "get-prog-info(next_id->fd)",
@@ -436,7 +440,7 @@ static void test_bpf_obj_id(void)
 	nr_id_found = 0;
 	next_id = 0;
 	while (!bpf_map_get_next_id(next_id, &next_id)) {
-		struct bpf_map_info map_info;
+		struct bpf_map_info map_info = {};
 		int map_fd;
 
 		info_len = sizeof(map_info);
diff --git a/tools/testing/selftests/bpf/test_verifier.c b/tools/testing/selftests/bpf/test_verifier.c
index 404aec520812..d3ed7324105e 100644
--- a/tools/testing/selftests/bpf/test_verifier.c
+++ b/tools/testing/selftests/bpf/test_verifier.c
@@ -8,6 +8,7 @@
  * License as published by the Free Software Foundation.
  */
 
+#include <endian.h>
 #include <asm/types.h>
 #include <linux/types.h>
 #include <stdint.h>
@@ -1098,7 +1099,7 @@ static struct bpf_test tests[] = {
 		"check skb->hash byte load permitted",
 		.insns = {
 			BPF_MOV64_IMM(BPF_REG_0, 0),
-#ifdef __LITTLE_ENDIAN
+#if __BYTE_ORDER == __LITTLE_ENDIAN
 			BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1,
 				    offsetof(struct __sk_buff, hash)),
 #else
@@ -1135,7 +1136,7 @@ static struct bpf_test tests[] = {
 		"check skb->hash byte load not permitted 3",
 		.insns = {
 			BPF_MOV64_IMM(BPF_REG_0, 0),
-#ifdef __LITTLE_ENDIAN
+#if __BYTE_ORDER == __LITTLE_ENDIAN
 			BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1,
 				    offsetof(struct __sk_buff, hash) + 3),
 #else
@@ -1244,7 +1245,7 @@ static struct bpf_test tests[] = {
 		"check skb->hash half load permitted",
 		.insns = {
 			BPF_MOV64_IMM(BPF_REG_0, 0),
-#ifdef __LITTLE_ENDIAN
+#if __BYTE_ORDER == __LITTLE_ENDIAN
 			BPF_LDX_MEM(BPF_H, BPF_REG_0, BPF_REG_1,
 				    offsetof(struct __sk_buff, hash)),
 #else
@@ -1259,7 +1260,7 @@ static struct bpf_test tests[] = {
 		"check skb->hash half load not permitted",
 		.insns = {
 			BPF_MOV64_IMM(BPF_REG_0, 0),
-#ifdef __LITTLE_ENDIAN
+#if __BYTE_ORDER == __LITTLE_ENDIAN
 			BPF_LDX_MEM(BPF_H, BPF_REG_0, BPF_REG_1,
 				    offsetof(struct __sk_buff, hash) + 2),
 #else
@@ -4969,7 +4970,7 @@ static struct bpf_test tests[] = {
 			BPF_JMP_IMM(BPF_JSGT, BPF_REG_2,
 				sizeof(struct test_val), 4),
 			BPF_MOV64_IMM(BPF_REG_4, 0),
-			BPF_JMP_REG(BPF_JGE, BPF_REG_4, BPF_REG_2, 2),
+			BPF_JMP_REG(BPF_JSGE, BPF_REG_4, BPF_REG_2, 2),
 			BPF_MOV64_IMM(BPF_REG_3, 0),
 			BPF_EMIT_CALL(BPF_FUNC_probe_read),
 			BPF_MOV64_IMM(BPF_REG_0, 0),
@@ -4995,7 +4996,7 @@ static struct bpf_test tests[] = {
 			BPF_JMP_IMM(BPF_JSGT, BPF_REG_2,
 				sizeof(struct test_val) + 1, 4),
 			BPF_MOV64_IMM(BPF_REG_4, 0),
-			BPF_JMP_REG(BPF_JGE, BPF_REG_4, BPF_REG_2, 2),
+			BPF_JMP_REG(BPF_JSGE, BPF_REG_4, BPF_REG_2, 2),
 			BPF_MOV64_IMM(BPF_REG_3, 0),
 			BPF_EMIT_CALL(BPF_FUNC_probe_read),
 			BPF_MOV64_IMM(BPF_REG_0, 0),
@@ -5023,7 +5024,7 @@ static struct bpf_test tests[] = {
 			BPF_JMP_IMM(BPF_JSGT, BPF_REG_2,
 				sizeof(struct test_val) - 20, 4),
 			BPF_MOV64_IMM(BPF_REG_4, 0),
-			BPF_JMP_REG(BPF_JGE, BPF_REG_4, BPF_REG_2, 2),
+			BPF_JMP_REG(BPF_JSGE, BPF_REG_4, BPF_REG_2, 2),
 			BPF_MOV64_IMM(BPF_REG_3, 0),
 			BPF_EMIT_CALL(BPF_FUNC_probe_read),
 			BPF_MOV64_IMM(BPF_REG_0, 0),
@@ -5050,7 +5051,7 @@ static struct bpf_test tests[] = {
 			BPF_JMP_IMM(BPF_JSGT, BPF_REG_2,
 				sizeof(struct test_val) - 19, 4),
 			BPF_MOV64_IMM(BPF_REG_4, 0),
-			BPF_JMP_REG(BPF_JGE, BPF_REG_4, BPF_REG_2, 2),
+			BPF_JMP_REG(BPF_JSGE, BPF_REG_4, BPF_REG_2, 2),
 			BPF_MOV64_IMM(BPF_REG_3, 0),
 			BPF_EMIT_CALL(BPF_FUNC_probe_read),
 			BPF_MOV64_IMM(BPF_REG_0, 0),
@@ -5422,7 +5423,7 @@ static struct bpf_test tests[] = {
 		"check bpf_perf_event_data->sample_period byte load permitted",
 		.insns = {
 			BPF_MOV64_IMM(BPF_REG_0, 0),
-#ifdef __LITTLE_ENDIAN
+#if __BYTE_ORDER == __LITTLE_ENDIAN
 			BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1,
 				    offsetof(struct bpf_perf_event_data, sample_period)),
 #else
@@ -5438,7 +5439,7 @@ static struct bpf_test tests[] = {
 		"check bpf_perf_event_data->sample_period half load permitted",
 		.insns = {
 			BPF_MOV64_IMM(BPF_REG_0, 0),
-#ifdef __LITTLE_ENDIAN
+#if __BYTE_ORDER == __LITTLE_ENDIAN
 			BPF_LDX_MEM(BPF_H, BPF_REG_0, BPF_REG_1,
 				    offsetof(struct bpf_perf_event_data, sample_period)),
 #else
@@ -5454,7 +5455,7 @@ static struct bpf_test tests[] = {
 		"check bpf_perf_event_data->sample_period word load permitted",
 		.insns = {
 			BPF_MOV64_IMM(BPF_REG_0, 0),
-#ifdef __LITTLE_ENDIAN
+#if __BYTE_ORDER == __LITTLE_ENDIAN
 			BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1,
 				    offsetof(struct bpf_perf_event_data, sample_period)),
 #else
@@ -5481,7 +5482,7 @@ static struct bpf_test tests[] = {
 		"check skb->data half load not permitted",
 		.insns = {
 			BPF_MOV64_IMM(BPF_REG_0, 0),
-#ifdef __LITTLE_ENDIAN
+#if __BYTE_ORDER == __LITTLE_ENDIAN
 			BPF_LDX_MEM(BPF_H, BPF_REG_0, BPF_REG_1,
 				    offsetof(struct __sk_buff, data)),
 #else
@@ -5497,7 +5498,7 @@ static struct bpf_test tests[] = {
 		"check skb->tc_classid half load not permitted for lwt prog",
 		.insns = {
 			BPF_MOV64_IMM(BPF_REG_0, 0),
-#ifdef __LITTLE_ENDIAN
+#if __BYTE_ORDER == __LITTLE_ENDIAN
 			BPF_LDX_MEM(BPF_H, BPF_REG_0, BPF_REG_1,
 				    offsetof(struct __sk_buff, tc_classid)),
 #else
@@ -5510,6 +5511,504 @@ static struct bpf_test tests[] = {
 		.errstr = "invalid bpf_context access",
 		.prog_type = BPF_PROG_TYPE_LWT_IN,
 	},
+	{
+		"bounds checks mixing signed and unsigned, positive bounds",
+		.insns = {
+			BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0),
+			BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
+			BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
+			BPF_LD_MAP_FD(BPF_REG_1, 0),
+			BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
+				     BPF_FUNC_map_lookup_elem),
+			BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 7),
+			BPF_ST_MEM(BPF_DW, BPF_REG_10, -16, -8),
+			BPF_LDX_MEM(BPF_DW, BPF_REG_1, BPF_REG_10, -16),
+			BPF_MOV64_IMM(BPF_REG_2, 2),
+			BPF_JMP_REG(BPF_JGE, BPF_REG_2, BPF_REG_1, 3),
+			BPF_JMP_IMM(BPF_JSGT, BPF_REG_1, 4, 2),
+			BPF_ALU64_REG(BPF_ADD, BPF_REG_0, BPF_REG_1),
+			BPF_ST_MEM(BPF_B, BPF_REG_0, 0, 0),
+			BPF_MOV64_IMM(BPF_REG_0, 0),
+			BPF_EXIT_INSN(),
+		},
+		.fixup_map1 = { 3 },
+		.errstr_unpriv = "R0 pointer arithmetic prohibited",
+		.errstr = "R0 min value is negative",
+		.result = REJECT,
+		.result_unpriv = REJECT,
+	},
+	{
+		"bounds checks mixing signed and unsigned",
+		.insns = {
+			BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0),
+			BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
+			BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
+			BPF_LD_MAP_FD(BPF_REG_1, 0),
+			BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
+				     BPF_FUNC_map_lookup_elem),
+			BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 7),
+			BPF_ST_MEM(BPF_DW, BPF_REG_10, -16, -8),
+			BPF_LDX_MEM(BPF_DW, BPF_REG_1, BPF_REG_10, -16),
+			BPF_MOV64_IMM(BPF_REG_2, -1),
+			BPF_JMP_REG(BPF_JGT, BPF_REG_1, BPF_REG_2, 3),
+			BPF_JMP_IMM(BPF_JSGT, BPF_REG_1, 1, 2),
+			BPF_ALU64_REG(BPF_ADD, BPF_REG_0, BPF_REG_1),
+			BPF_ST_MEM(BPF_B, BPF_REG_0, 0, 0),
+			BPF_MOV64_IMM(BPF_REG_0, 0),
+			BPF_EXIT_INSN(),
+		},
+		.fixup_map1 = { 3 },
+		.errstr_unpriv = "R0 pointer arithmetic prohibited",
+		.errstr = "R0 min value is negative",
+		.result = REJECT,
+		.result_unpriv = REJECT,
+	},
+	{
+		"bounds checks mixing signed and unsigned, variant 2",
+		.insns = {
+			BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0),
+			BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
+			BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
+			BPF_LD_MAP_FD(BPF_REG_1, 0),
+			BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
+				     BPF_FUNC_map_lookup_elem),
+			BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 9),
+			BPF_ST_MEM(BPF_DW, BPF_REG_10, -16, -8),
+			BPF_LDX_MEM(BPF_DW, BPF_REG_1, BPF_REG_10, -16),
+			BPF_MOV64_IMM(BPF_REG_2, -1),
+			BPF_JMP_REG(BPF_JGT, BPF_REG_1, BPF_REG_2, 5),
+			BPF_MOV64_IMM(BPF_REG_8, 0),
+			BPF_ALU64_REG(BPF_ADD, BPF_REG_8, BPF_REG_1),
+			BPF_JMP_IMM(BPF_JSGT, BPF_REG_8, 1, 2),
+			BPF_ALU64_REG(BPF_ADD, BPF_REG_0, BPF_REG_8),
+			BPF_ST_MEM(BPF_B, BPF_REG_8, 0, 0),
+			BPF_MOV64_IMM(BPF_REG_0, 0),
+			BPF_EXIT_INSN(),
+		},
+		.fixup_map1 = { 3 },
+		.errstr_unpriv = "R0 pointer arithmetic prohibited",
+		.errstr = "R8 invalid mem access 'inv'",
+		.result = REJECT,
+		.result_unpriv = REJECT,
+	},
+	{
+		"bounds checks mixing signed and unsigned, variant 3",
+		.insns = {
+			BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0),
+			BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
+			BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
+			BPF_LD_MAP_FD(BPF_REG_1, 0),
+			BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
+				     BPF_FUNC_map_lookup_elem),
+			BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 8),
+			BPF_ST_MEM(BPF_DW, BPF_REG_10, -16, -8),
+			BPF_LDX_MEM(BPF_DW, BPF_REG_1, BPF_REG_10, -16),
+			BPF_MOV64_IMM(BPF_REG_2, -1),
+			BPF_JMP_REG(BPF_JGT, BPF_REG_1, BPF_REG_2, 4),
+			BPF_MOV64_REG(BPF_REG_8, BPF_REG_1),
+			BPF_JMP_IMM(BPF_JSGT, BPF_REG_8, 1, 2),
+			BPF_ALU64_REG(BPF_ADD, BPF_REG_0, BPF_REG_8),
+			BPF_ST_MEM(BPF_B, BPF_REG_8, 0, 0),
+			BPF_MOV64_IMM(BPF_REG_0, 0),
+			BPF_EXIT_INSN(),
+		},
+		.fixup_map1 = { 3 },
+		.errstr_unpriv = "R0 pointer arithmetic prohibited",
+		.errstr = "R8 invalid mem access 'inv'",
+		.result = REJECT,
+		.result_unpriv = REJECT,
+	},
+	{
+		"bounds checks mixing signed and unsigned, variant 4",
+		.insns = {
+			BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0),
+			BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
+			BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
+			BPF_LD_MAP_FD(BPF_REG_1, 0),
+			BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
+				     BPF_FUNC_map_lookup_elem),
+			BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 7),
+			BPF_ST_MEM(BPF_DW, BPF_REG_10, -16, -8),
+			BPF_LDX_MEM(BPF_DW, BPF_REG_1, BPF_REG_10, -16),
+			BPF_MOV64_IMM(BPF_REG_2, 1),
+			BPF_ALU64_REG(BPF_AND, BPF_REG_1, BPF_REG_2),
+			BPF_JMP_IMM(BPF_JSGT, BPF_REG_1, 1, 2),
+			BPF_ALU64_REG(BPF_ADD, BPF_REG_0, BPF_REG_1),
+			BPF_ST_MEM(BPF_B, BPF_REG_0, 0, 0),
+			BPF_MOV64_IMM(BPF_REG_0, 0),
+			BPF_EXIT_INSN(),
+		},
+		.fixup_map1 = { 3 },
+		.errstr_unpriv = "R0 pointer arithmetic prohibited",
+		.errstr = "R0 min value is negative",
+		.result = REJECT,
+		.result_unpriv = REJECT,
+	},
+	{
+		"bounds checks mixing signed and unsigned, variant 5",
+		.insns = {
+			BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0),
+			BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
+			BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
+			BPF_LD_MAP_FD(BPF_REG_1, 0),
+			BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
+				     BPF_FUNC_map_lookup_elem),
+			BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 9),
+			BPF_ST_MEM(BPF_DW, BPF_REG_10, -16, -8),
+			BPF_LDX_MEM(BPF_DW, BPF_REG_1, BPF_REG_10, -16),
+			BPF_MOV64_IMM(BPF_REG_2, -1),
+			BPF_JMP_REG(BPF_JGT, BPF_REG_1, BPF_REG_2, 5),
+			BPF_JMP_IMM(BPF_JSGT, BPF_REG_1, 1, 4),
+			BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 4),
+			BPF_ALU64_REG(BPF_SUB, BPF_REG_0, BPF_REG_1),
+			BPF_ST_MEM(BPF_B, BPF_REG_0, 0, 0),
+			BPF_MOV64_IMM(BPF_REG_0, 0),
+			BPF_EXIT_INSN(),
+		},
+		.fixup_map1 = { 3 },
+		.errstr_unpriv = "R0 pointer arithmetic prohibited",
+		.errstr = "R0 invalid mem access",
+		.result = REJECT,
+		.result_unpriv = REJECT,
+	},
+	{
+		"bounds checks mixing signed and unsigned, variant 6",
+		.insns = {
+			BPF_MOV64_IMM(BPF_REG_2, 0),
+			BPF_MOV64_REG(BPF_REG_3, BPF_REG_10),
+			BPF_ALU64_IMM(BPF_ADD, BPF_REG_3, -512),
+			BPF_ST_MEM(BPF_DW, BPF_REG_10, -16, -8),
+			BPF_LDX_MEM(BPF_DW, BPF_REG_4, BPF_REG_10, -16),
+			BPF_MOV64_IMM(BPF_REG_6, -1),
+			BPF_JMP_REG(BPF_JGT, BPF_REG_4, BPF_REG_6, 5),
+			BPF_JMP_IMM(BPF_JSGT, BPF_REG_4, 1, 4),
+			BPF_ALU64_IMM(BPF_ADD, BPF_REG_4, 1),
+			BPF_MOV64_IMM(BPF_REG_5, 0),
+			BPF_ST_MEM(BPF_H, BPF_REG_10, -512, 0),
+			BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
+				     BPF_FUNC_skb_load_bytes),
+			BPF_MOV64_IMM(BPF_REG_0, 0),
+			BPF_EXIT_INSN(),
+		},
+		.errstr_unpriv = "R4 min value is negative, either use unsigned",
+		.errstr = "R4 min value is negative, either use unsigned",
+		.result = REJECT,
+		.result_unpriv = REJECT,
+	},
+	{
+		"bounds checks mixing signed and unsigned, variant 7",
+		.insns = {
+			BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0),
+			BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
+			BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
+			BPF_LD_MAP_FD(BPF_REG_1, 0),
+			BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
+				     BPF_FUNC_map_lookup_elem),
+			BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 7),
+			BPF_ST_MEM(BPF_DW, BPF_REG_10, -16, -8),
+			BPF_LDX_MEM(BPF_DW, BPF_REG_1, BPF_REG_10, -16),
+			BPF_MOV64_IMM(BPF_REG_2, 1024 * 1024 * 1024),
+			BPF_JMP_REG(BPF_JGT, BPF_REG_1, BPF_REG_2, 3),
+			BPF_JMP_IMM(BPF_JSGT, BPF_REG_1, 1, 2),
+			BPF_ALU64_REG(BPF_ADD, BPF_REG_0, BPF_REG_1),
+			BPF_ST_MEM(BPF_B, BPF_REG_0, 0, 0),
+			BPF_MOV64_IMM(BPF_REG_0, 0),
+			BPF_EXIT_INSN(),
+		},
+		.fixup_map1 = { 3 },
+		.errstr_unpriv = "R0 pointer arithmetic prohibited",
+		.errstr = "R0 min value is negative",
+		.result = REJECT,
+		.result_unpriv = REJECT,
+	},
+	{
+		"bounds checks mixing signed and unsigned, variant 8",
+		.insns = {
+			BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0),
+			BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
+			BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
+			BPF_LD_MAP_FD(BPF_REG_1, 0),
+			BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
+				     BPF_FUNC_map_lookup_elem),
+			BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 7),
+			BPF_ST_MEM(BPF_DW, BPF_REG_10, -16, -8),
+			BPF_LDX_MEM(BPF_DW, BPF_REG_1, BPF_REG_10, -16),
+			BPF_MOV64_IMM(BPF_REG_2, 1024 * 1024 * 1024 + 1),
+			BPF_JMP_REG(BPF_JGT, BPF_REG_1, BPF_REG_2, 3),
+			BPF_JMP_IMM(BPF_JSGT, BPF_REG_1, 1, 2),
+			BPF_ALU64_REG(BPF_ADD, BPF_REG_0, BPF_REG_1),
+			BPF_ST_MEM(BPF_B, BPF_REG_0, 0, 0),
+			BPF_MOV64_IMM(BPF_REG_0, 0),
+			BPF_EXIT_INSN(),
+		},
+		.fixup_map1 = { 3 },
+		.errstr_unpriv = "R0 pointer arithmetic prohibited",
+		.errstr = "R0 min value is negative",
+		.result = REJECT,
+		.result_unpriv = REJECT,
+	},
+	{
+		"bounds checks mixing signed and unsigned, variant 9",
+		.insns = {
+			BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0),
+			BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
+			BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
+			BPF_LD_MAP_FD(BPF_REG_1, 0),
+			BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
+				     BPF_FUNC_map_lookup_elem),
+			BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 9),
+			BPF_ST_MEM(BPF_DW, BPF_REG_10, -16, -8),
+			BPF_LDX_MEM(BPF_DW, BPF_REG_1, BPF_REG_10, -16),
+			BPF_MOV64_IMM(BPF_REG_2, -1),
+			BPF_JMP_REG(BPF_JGT, BPF_REG_2, BPF_REG_1, 2),
+			BPF_MOV64_IMM(BPF_REG_0, 0),
+			BPF_EXIT_INSN(),
+			BPF_JMP_IMM(BPF_JSGT, BPF_REG_1, 1, 2),
+			BPF_ALU64_REG(BPF_ADD, BPF_REG_0, BPF_REG_1),
+			BPF_ST_MEM(BPF_B, BPF_REG_0, 0, 0),
+			BPF_MOV64_IMM(BPF_REG_0, 0),
+			BPF_EXIT_INSN(),
+		},
+		.fixup_map1 = { 3 },
+		.errstr_unpriv = "R0 pointer arithmetic prohibited",
+		.errstr = "R0 min value is negative",
+		.result = REJECT,
+		.result_unpriv = REJECT,
+	},
+	{
+		"bounds checks mixing signed and unsigned, variant 10",
+		.insns = {
+			BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0),
+			BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
+			BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
+			BPF_LD_MAP_FD(BPF_REG_1, 0),
+			BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
+				     BPF_FUNC_map_lookup_elem),
+			BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 10),
+			BPF_ST_MEM(BPF_DW, BPF_REG_10, -16, -8),
+			BPF_LDX_MEM(BPF_DW, BPF_REG_1, BPF_REG_10, -16),
+			BPF_LD_IMM64(BPF_REG_2, -9223372036854775808ULL),
+			BPF_JMP_REG(BPF_JGT, BPF_REG_2, BPF_REG_1, 2),
+			BPF_MOV64_IMM(BPF_REG_0, 0),
+			BPF_EXIT_INSN(),
+			BPF_JMP_IMM(BPF_JSGT, BPF_REG_1, 1, 2),
+			BPF_ALU64_REG(BPF_ADD, BPF_REG_0, BPF_REG_1),
+			BPF_ST_MEM(BPF_B, BPF_REG_0, 0, 0),
+			BPF_MOV64_IMM(BPF_REG_0, 0),
+			BPF_EXIT_INSN(),
+		},
+		.fixup_map1 = { 3 },
+		.errstr_unpriv = "R0 pointer arithmetic prohibited",
+		.errstr = "R0 min value is negative",
+		.result = REJECT,
+		.result_unpriv = REJECT,
+	},
+	{
+		"bounds checks mixing signed and unsigned, variant 11",
+		.insns = {
+			BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0),
+			BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
+			BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
+			BPF_LD_MAP_FD(BPF_REG_1, 0),
+			BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
+				     BPF_FUNC_map_lookup_elem),
+			BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 9),
+			BPF_ST_MEM(BPF_DW, BPF_REG_10, -16, -8),
+			BPF_LDX_MEM(BPF_DW, BPF_REG_1, BPF_REG_10, -16),
+			BPF_MOV64_IMM(BPF_REG_2, 0),
+			BPF_JMP_REG(BPF_JGT, BPF_REG_2, BPF_REG_1, 2),
+			BPF_MOV64_IMM(BPF_REG_0, 0),
+			BPF_EXIT_INSN(),
+			BPF_JMP_IMM(BPF_JSGT, BPF_REG_1, 1, 2),
+			BPF_ALU64_REG(BPF_ADD, BPF_REG_0, BPF_REG_1),
+			BPF_ST_MEM(BPF_B, BPF_REG_0, 0, 0),
+			BPF_MOV64_IMM(BPF_REG_0, 0),
+			BPF_EXIT_INSN(),
+		},
+		.fixup_map1 = { 3 },
+		.errstr_unpriv = "R0 pointer arithmetic prohibited",
+		.errstr = "R0 min value is negative",
+		.result = REJECT,
+		.result_unpriv = REJECT,
+	},
+	{
+		"bounds checks mixing signed and unsigned, variant 12",
+		.insns = {
+			BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0),
+			BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
+			BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
+			BPF_LD_MAP_FD(BPF_REG_1, 0),
+			BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
+				     BPF_FUNC_map_lookup_elem),
+			BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 9),
+			BPF_ST_MEM(BPF_DW, BPF_REG_10, -16, -8),
+			BPF_LDX_MEM(BPF_DW, BPF_REG_1, BPF_REG_10, -16),
+			BPF_MOV64_IMM(BPF_REG_2, -1),
+			BPF_JMP_REG(BPF_JGE, BPF_REG_2, BPF_REG_1, 2),
+			/* Dead branch. */
+			BPF_MOV64_IMM(BPF_REG_0, 0),
+			BPF_EXIT_INSN(),
+			BPF_JMP_IMM(BPF_JSGT, BPF_REG_1, 1, 2),
+			BPF_ALU64_REG(BPF_ADD, BPF_REG_0, BPF_REG_1),
+			BPF_ST_MEM(BPF_B, BPF_REG_0, 0, 0),
+			BPF_MOV64_IMM(BPF_REG_0, 0),
+			BPF_EXIT_INSN(),
+		},
+		.fixup_map1 = { 3 },
+		.errstr_unpriv = "R0 pointer arithmetic prohibited",
+		.errstr = "R0 min value is negative",
+		.result = REJECT,
+		.result_unpriv = REJECT,
+	},
+	{
+		"bounds checks mixing signed and unsigned, variant 13",
+		.insns = {
+			BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0),
+			BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
+			BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
+			BPF_LD_MAP_FD(BPF_REG_1, 0),
+			BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
+				     BPF_FUNC_map_lookup_elem),
+			BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 9),
+			BPF_ST_MEM(BPF_DW, BPF_REG_10, -16, -8),
+			BPF_LDX_MEM(BPF_DW, BPF_REG_1, BPF_REG_10, -16),
+			BPF_MOV64_IMM(BPF_REG_2, -6),
+			BPF_JMP_REG(BPF_JGE, BPF_REG_2, BPF_REG_1, 2),
+			BPF_MOV64_IMM(BPF_REG_0, 0),
+			BPF_EXIT_INSN(),
+			BPF_JMP_IMM(BPF_JSGT, BPF_REG_1, 1, 2),
+			BPF_ALU64_REG(BPF_ADD, BPF_REG_0, BPF_REG_1),
+			BPF_ST_MEM(BPF_B, BPF_REG_0, 0, 0),
+			BPF_MOV64_IMM(BPF_REG_0, 0),
+			BPF_EXIT_INSN(),
+		},
+		.fixup_map1 = { 3 },
+		.errstr_unpriv = "R0 pointer arithmetic prohibited",
+		.errstr = "R0 min value is negative",
+		.result = REJECT,
+		.result_unpriv = REJECT,
+	},
+	{
+		"bounds checks mixing signed and unsigned, variant 14",
+		.insns = {
+			BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0),
+			BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
+			BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
+			BPF_LD_MAP_FD(BPF_REG_1, 0),
+			BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
+				     BPF_FUNC_map_lookup_elem),
+			BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 6),
+			BPF_ST_MEM(BPF_DW, BPF_REG_10, -16, -8),
+			BPF_LDX_MEM(BPF_DW, BPF_REG_1, BPF_REG_10, -16),
+			BPF_MOV64_IMM(BPF_REG_2, 2),
+			BPF_JMP_REG(BPF_JGE, BPF_REG_2, BPF_REG_1, 2),
+			BPF_MOV64_IMM(BPF_REG_7, 1),
+			BPF_JMP_IMM(BPF_JSGT, BPF_REG_7, 0, 2),
+			BPF_MOV64_IMM(BPF_REG_0, 0),
+			BPF_EXIT_INSN(),
+			BPF_ALU64_REG(BPF_ADD, BPF_REG_7, BPF_REG_1),
+			BPF_JMP_IMM(BPF_JSGT, BPF_REG_7, 4, 2),
+			BPF_ALU64_REG(BPF_ADD, BPF_REG_0, BPF_REG_7),
+			BPF_ST_MEM(BPF_B, BPF_REG_0, 0, 0),
+			BPF_MOV64_IMM(BPF_REG_0, 0),
+			BPF_EXIT_INSN(),
+		},
+		.fixup_map1 = { 3 },
+		.errstr_unpriv = "R0 pointer arithmetic prohibited",
+		.errstr = "R0 min value is negative",
+		.result = REJECT,
+		.result_unpriv = REJECT,
+	},
+	{
+		"bounds checks mixing signed and unsigned, variant 15",
+		.insns = {
+			BPF_LDX_MEM(BPF_W, BPF_REG_9, BPF_REG_1,
+				    offsetof(struct __sk_buff, mark)),
+			BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0),
+			BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
+			BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
+			BPF_LD_MAP_FD(BPF_REG_1, 0),
+			BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
+				     BPF_FUNC_map_lookup_elem),
+			BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 8),
+			BPF_ST_MEM(BPF_DW, BPF_REG_10, -16, -8),
+			BPF_LDX_MEM(BPF_DW, BPF_REG_1, BPF_REG_10, -16),
+			BPF_MOV64_IMM(BPF_REG_2, -1),
+			BPF_MOV64_IMM(BPF_REG_8, 2),
+			BPF_JMP_IMM(BPF_JEQ, BPF_REG_9, 42, 6),
+			BPF_JMP_REG(BPF_JSGT, BPF_REG_8, BPF_REG_1, 3),
+			BPF_JMP_IMM(BPF_JSGT, BPF_REG_1, 1, 2),
+			BPF_ALU64_REG(BPF_ADD, BPF_REG_0, BPF_REG_1),
+			BPF_ST_MEM(BPF_B, BPF_REG_0, 0, 0),
+			BPF_MOV64_IMM(BPF_REG_0, 0),
+			BPF_EXIT_INSN(),
+			BPF_JMP_REG(BPF_JGT, BPF_REG_1, BPF_REG_2, -3),
+			BPF_JMP_IMM(BPF_JA, 0, 0, -7),
+		},
+		.fixup_map1 = { 4 },
+		.errstr_unpriv = "R0 pointer arithmetic prohibited",
+		.errstr = "R0 min value is negative",
+		.result = REJECT,
+		.result_unpriv = REJECT,
+	},
+	{
+		"bounds checks mixing signed and unsigned, variant 16",
+		.insns = {
+			BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0),
+			BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
+			BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
+			BPF_LD_MAP_FD(BPF_REG_1, 0),
+			BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
+				     BPF_FUNC_map_lookup_elem),
+			BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 4),
+			BPF_ST_MEM(BPF_DW, BPF_REG_10, -16, -8),
+			BPF_LDX_MEM(BPF_DW, BPF_REG_1, BPF_REG_10, -16),
+			BPF_MOV64_IMM(BPF_REG_2, -6),
+			BPF_JMP_REG(BPF_JGE, BPF_REG_2, BPF_REG_1, 2),
+			BPF_MOV64_IMM(BPF_REG_0, 0),
+			BPF_EXIT_INSN(),
+			BPF_ALU64_REG(BPF_ADD, BPF_REG_0, BPF_REG_1),
+			BPF_JMP_IMM(BPF_JGT, BPF_REG_0, 1, 2),
+			BPF_MOV64_IMM(BPF_REG_0, 0),
+			BPF_EXIT_INSN(),
+			BPF_ST_MEM(BPF_B, BPF_REG_0, 0, 0),
+			BPF_MOV64_IMM(BPF_REG_0, 0),
+			BPF_EXIT_INSN(),
+		},
+		.fixup_map1 = { 3 },
+		.errstr_unpriv = "R0 pointer arithmetic prohibited",
+		.errstr = "R0 min value is negative",
+		.result = REJECT,
+		.result_unpriv = REJECT,
+	},
+	{
+		"subtraction bounds (map value)",
+		.insns = {
+			BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0),
+			BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
+			BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
+			BPF_LD_MAP_FD(BPF_REG_1, 0),
+			BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
+				     BPF_FUNC_map_lookup_elem),
+			BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 9),
+			BPF_LDX_MEM(BPF_B, BPF_REG_1, BPF_REG_0, 0),
+			BPF_JMP_IMM(BPF_JGT, BPF_REG_1, 0xff, 7),
+			BPF_LDX_MEM(BPF_B, BPF_REG_3, BPF_REG_0, 1),
+			BPF_JMP_IMM(BPF_JGT, BPF_REG_3, 0xff, 5),
+			BPF_ALU64_REG(BPF_SUB, BPF_REG_1, BPF_REG_3),
+			BPF_ALU64_IMM(BPF_RSH, BPF_REG_1, 56),
+			BPF_ALU64_REG(BPF_ADD, BPF_REG_0, BPF_REG_1),
+			BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_0, 0),
+			BPF_EXIT_INSN(),
+			BPF_MOV64_IMM(BPF_REG_0, 0),
+			BPF_EXIT_INSN(),
+		},
+		.fixup_map1 = { 3 },
+		.errstr_unpriv = "R0 pointer arithmetic prohibited",
+		.errstr = "R0 min value is negative, either use unsigned index or do a if (index >=0) check.",
+		.result = REJECT,
+		.result_unpriv = REJECT,
+	},
 };
 
 static int probe_filter_length(const struct bpf_insn *fp)
@@ -5633,7 +6132,7 @@ static void do_test_single(struct bpf_test *test, bool unpriv,
 
 	fd_prog = bpf_verify_program(prog_type ? : BPF_PROG_TYPE_SOCKET_FILTER,
 				     prog, prog_len, test->flags & F_LOAD_WITH_STRICT_ALIGNMENT,
-				     "GPL", 0, bpf_vlog, sizeof(bpf_vlog));
+				     "GPL", 0, bpf_vlog, sizeof(bpf_vlog), 1);
 
 	expected_ret = unpriv && test->result_unpriv != UNDEF ?
 		       test->result_unpriv : test->result;
diff --git a/tools/testing/selftests/ftrace/test.d/kprobe/kprobe_eventname.tc b/tools/testing/selftests/ftrace/test.d/kprobe/kprobe_eventname.tc
new file mode 100644
index 000000000000..b9302cc82c12
--- /dev/null
+++ b/tools/testing/selftests/ftrace/test.d/kprobe/kprobe_eventname.tc
@@ -0,0 +1,36 @@
+#!/bin/sh
+# description: Kprobe event auto/manual naming
+
+[ -f kprobe_events ] || exit_unsupported # this is configurable
+
+disable_events
+echo > kprobe_events
+
+:;: "Add an event on function without name" ;:
+
+FUNC=`grep " [tT] .*vfs_read$" /proc/kallsyms | tail -n 1 | cut -f 3 -d " "`
+[ "x" != "x$FUNC" ] || exit_unresolved
+echo "p $FUNC" > kprobe_events
+PROBE_NAME=`echo $FUNC | tr ".:" "_"`
+test -d events/kprobes/p_${PROBE_NAME}_0 || exit_failure
+
+:;: "Add an event on function with new name" ;:
+
+echo "p:event1 $FUNC" > kprobe_events
+test -d events/kprobes/event1 || exit_failure
+
+:;: "Add an event on function with new name and group" ;:
+
+echo "p:kprobes2/event2 $FUNC" > kprobe_events
+test -d events/kprobes2/event2 || exit_failure
+
+:;: "Add an event on dot function without name" ;:
+
+FUNC=`grep -m 10 " [tT] .*\.isra\..*$" /proc/kallsyms | tail -n 1 | cut -f 3 -d " "`
+[ "x" != "x$FUNC" ] || exit_unresolved
+echo "p $FUNC" > kprobe_events
+EVENT=`grep $FUNC kprobe_events | cut -f 1 -d " " | cut -f 2 -d:`
+[ "x" != "x$EVENT" ] || exit_failure
+test -d events/$EVENT || exit_failure
+
+echo > kprobe_events
diff --git a/tools/testing/selftests/ftrace/test.d/kprobe/kprobe_module.tc b/tools/testing/selftests/ftrace/test.d/kprobe/kprobe_module.tc
new file mode 100644
index 000000000000..6d634e4b7680
--- /dev/null
+++ b/tools/testing/selftests/ftrace/test.d/kprobe/kprobe_module.tc
@@ -0,0 +1,28 @@
+#!/bin/sh
+# description: Kprobe dynamic event - probing module
+
+[ -f kprobe_events ] || exit_unsupported # this is configurable
+
+disable_events
+echo > kprobe_events
+
+:;: "Add an event on a module function without specifying event name" ;:
+
+MOD=`lsmod | head -n 2 | tail -n 1 | cut -f1 -d" "`
+FUNC=`grep -m 1 ".* t .*\\[$MOD\\]" /proc/kallsyms | xargs | cut -f3 -d" "`
+[ "x" != "x$MOD" -a "y" != "y$FUNC" ] || exit_unresolved
+echo "p $MOD:$FUNC" > kprobe_events
+PROBE_NAME=`echo $MOD:$FUNC | tr ".:" "_"`
+test -d events/kprobes/p_${PROBE_NAME}_0 || exit_failure
+
+:;: "Add an event on a module function with new event name" ;:
+
+echo "p:event1 $MOD:$FUNC" > kprobe_events
+test -d events/kprobes/event1 || exit_failure
+
+:;: "Add an event on a module function with new event and group name" ;:
+
+echo "p:kprobes1/event1 $MOD:$FUNC" > kprobe_events
+test -d events/kprobes1/event1 || exit_failure
+
+echo > kprobe_events
diff --git a/tools/testing/selftests/ftrace/test.d/kprobe/multiple_kprobes.tc b/tools/testing/selftests/ftrace/test.d/kprobe/multiple_kprobes.tc
index f4d1ff785d67..2a1cb9908746 100644
--- a/tools/testing/selftests/ftrace/test.d/kprobe/multiple_kprobes.tc
+++ b/tools/testing/selftests/ftrace/test.d/kprobe/multiple_kprobes.tc
@@ -2,10 +2,10 @@
 # description: Register/unregister many kprobe events
 
 # ftrace fentry skip size depends on the machine architecture.
-# Currently HAVE_KPROBES_ON_FTRACE defined on x86 and powerpc
+# Currently HAVE_KPROBES_ON_FTRACE defined on x86 and powerpc64le
 case `uname -m` in
   x86_64|i[3456]86) OFFS=5;;
-  ppc*) OFFS=4;;
+  ppc64le) OFFS=8;;
   *) OFFS=0;;
 esac
 
diff --git a/tools/testing/selftests/futex/Makefile b/tools/testing/selftests/futex/Makefile
index e2fbb890aef9..7c647f619d63 100644
--- a/tools/testing/selftests/futex/Makefile
+++ b/tools/testing/selftests/futex/Makefile
@@ -14,7 +14,7 @@ all:
 	done
 
 override define RUN_TESTS
-	@if [ `dirname $(OUTPUT)` = $(PWD) ]; then ./run.sh; fi
+	$(OUTPUT)/run.sh
 endef
 
 override define INSTALL_RULE
diff --git a/tools/testing/selftests/kmod/Makefile b/tools/testing/selftests/kmod/Makefile
new file mode 100644
index 000000000000..fa2ccc5fb3de
--- /dev/null
+++ b/tools/testing/selftests/kmod/Makefile
@@ -0,0 +1,11 @@
+# Makefile for kmod loading selftests
+
+# No binaries, but make sure arg-less "make" doesn't trigger "run_tests"
+all:
+
+TEST_PROGS := kmod.sh
+
+include ../lib.mk
+
+# Nothing to clean up.
+clean:
diff --git a/tools/testing/selftests/kmod/config b/tools/testing/selftests/kmod/config
new file mode 100644
index 000000000000..259f4fd6b5e2
--- /dev/null
+++ b/tools/testing/selftests/kmod/config
@@ -0,0 +1,7 @@
+CONFIG_TEST_KMOD=m
+CONFIG_TEST_LKM=m
+CONFIG_XFS_FS=m
+
+# For the module parameter force_init_test is used
+CONFIG_TUN=m
+CONFIG_BTRFS_FS=m
diff --git a/tools/testing/selftests/kmod/kmod.sh b/tools/testing/selftests/kmod/kmod.sh
new file mode 100755
index 000000000000..7956ea3be667
--- /dev/null
+++ b/tools/testing/selftests/kmod/kmod.sh
@@ -0,0 +1,615 @@
+#!/bin/bash
+#
+# Copyright (C) 2017 Luis R. Rodriguez <mcgrof@kernel.org>
+#
+# This program is free software; you can redistribute it and/or modify it
+# under the terms of the GNU General Public License as published by the Free
+# Software Foundation; either version 2 of the License, or at your option any
+# later version; or, when distributed separately from the Linux kernel or
+# when incorporated into other software packages, subject to the following
+# license:
+#
+# This program is free software; you can redistribute it and/or modify it
+# under the terms of copyleft-next (version 0.3.1 or later) as published
+# at http://copyleft-next.org/.
+
+# This is a stress test script for kmod, the kernel module loader. It uses
+# test_kmod which exposes a series of knobs for the API for us so we can
+# tweak each test in userspace rather than in kernelspace.
+#
+# The way kmod works is it uses the kernel's usermode helper API to eventually
+# call /sbin/modprobe. It has a limit of the number of concurrent calls
+# possible. The kernel interface to load modules is request_module(), however
+# mount uses get_fs_type(). Both behave slightly differently, but the
+# differences are important enough to test each call separately. For this
+# reason test_kmod starts by providing tests for both calls.
+#
+# The test driver test_kmod assumes a series of defaults which you can
+# override by exporting to your environment prior running this script.
+# For instance this script assumes you do not have xfs loaded upon boot.
+# If this is false, export DEFAULT_KMOD_FS="ext4" prior to running this
+# script if the filesyste module you don't have loaded upon bootup
+# is ext4 instead. Refer to allow_user_defaults() for a list of user
+# override variables possible.
+#
+# You'll want at least 4 GiB of RAM to expect to run these tests
+# without running out of memory on them. For other requirements refer
+# to test_reqs()
+
+set -e
+
+TEST_NAME="kmod"
+TEST_DRIVER="test_${TEST_NAME}"
+TEST_DIR=$(dirname $0)
+
+# This represents
+#
+# TEST_ID:TEST_COUNT:ENABLED
+#
+# TEST_ID: is the test id number
+# TEST_COUNT: number of times we should run the test
+# ENABLED: 1 if enabled, 0 otherwise
+#
+# Once these are enabled please leave them as-is. Write your own test,
+# we have tons of space.
+ALL_TESTS="0001:3:1"
+ALL_TESTS="$ALL_TESTS 0002:3:1"
+ALL_TESTS="$ALL_TESTS 0003:1:1"
+ALL_TESTS="$ALL_TESTS 0004:1:1"
+ALL_TESTS="$ALL_TESTS 0005:10:1"
+ALL_TESTS="$ALL_TESTS 0006:10:1"
+ALL_TESTS="$ALL_TESTS 0007:5:1"
+ALL_TESTS="$ALL_TESTS 0008:150:1"
+ALL_TESTS="$ALL_TESTS 0009:150:1"
+
+test_modprobe()
+{
+       if [ ! -d $DIR ]; then
+               echo "$0: $DIR not present" >&2
+               echo "You must have the following enabled in your kernel:" >&2
+               cat $TEST_DIR/config >&2
+               exit 1
+       fi
+}
+
+function allow_user_defaults()
+{
+	if [ -z $DEFAULT_KMOD_DRIVER ]; then
+		DEFAULT_KMOD_DRIVER="test_module"
+	fi
+
+	if [ -z $DEFAULT_KMOD_FS ]; then
+		DEFAULT_KMOD_FS="xfs"
+	fi
+
+	if [ -z $PROC_DIR ]; then
+		PROC_DIR="/proc/sys/kernel/"
+	fi
+
+	if [ -z $MODPROBE_LIMIT ]; then
+		MODPROBE_LIMIT=50
+	fi
+
+	if [ -z $DIR ]; then
+		DIR="/sys/devices/virtual/misc/${TEST_DRIVER}0/"
+	fi
+
+	if [ -z $DEFAULT_NUM_TESTS ]; then
+		DEFAULT_NUM_TESTS=150
+	fi
+
+	MODPROBE_LIMIT_FILE="${PROC_DIR}/kmod-limit"
+}
+
+test_reqs()
+{
+	if ! which modprobe 2> /dev/null > /dev/null; then
+		echo "$0: You need modprobe installed" >&2
+		exit 1
+	fi
+
+	if ! which kmod 2> /dev/null > /dev/null; then
+		echo "$0: You need kmod installed" >&2
+		exit 1
+	fi
+
+	# kmod 19 has a bad bug where it returns 0 when modprobe
+	# gets called *even* if the module was not loaded due to
+	# some bad heuristics. For details see:
+	#
+	# A work around is possible in-kernel but its rather
+	# complex.
+	KMOD_VERSION=$(kmod --version | awk '{print $3}')
+	if [[ $KMOD_VERSION  -le 19 ]]; then
+		echo "$0: You need at least kmod 20" >&2
+		echo "kmod <= 19 is buggy, for details see:" >&2
+		echo "http://git.kernel.org/cgit/utils/kernel/kmod/kmod.git/commit/libkmod/libkmod-module.c?id=fd44a98ae2eb5eb32161088954ab21e58e19dfc4" >&2
+		exit 1
+	fi
+
+	uid=$(id -u)
+	if [ $uid -ne 0 ]; then
+		echo $msg must be run as root >&2
+		exit 0
+	fi
+}
+
+function load_req_mod()
+{
+	trap "test_modprobe" EXIT
+
+	if [ ! -d $DIR ]; then
+		# Alanis: "Oh isn't it ironic?"
+		modprobe $TEST_DRIVER
+	fi
+}
+
+test_finish()
+{
+	echo "Test completed"
+}
+
+errno_name_to_val()
+{
+	case "$1" in
+	# kmod calls modprobe and upon of a module not found
+	# modprobe returns just 1... However in the kernel we
+	# *sometimes* see 256...
+	MODULE_NOT_FOUND)
+		echo 256;;
+	SUCCESS)
+		echo 0;;
+	-EPERM)
+		echo -1;;
+	-ENOENT)
+		echo -2;;
+	-EINVAL)
+		echo -22;;
+	-ERR_ANY)
+		echo -123456;;
+	*)
+		echo invalid;;
+	esac
+}
+
+errno_val_to_name()
+	case "$1" in
+	256)
+		echo MODULE_NOT_FOUND;;
+	0)
+		echo SUCCESS;;
+	-1)
+		echo -EPERM;;
+	-2)
+		echo -ENOENT;;
+	-22)
+		echo -EINVAL;;
+	-123456)
+		echo -ERR_ANY;;
+	*)
+		echo invalid;;
+	esac
+
+config_set_test_case_driver()
+{
+	if ! echo -n 1 >$DIR/config_test_case; then
+		echo "$0: Unable to set to test case to driver" >&2
+		exit 1
+	fi
+}
+
+config_set_test_case_fs()
+{
+	if ! echo -n 2 >$DIR/config_test_case; then
+		echo "$0: Unable to set to test case to fs" >&2
+		exit 1
+	fi
+}
+
+config_num_threads()
+{
+	if ! echo -n $1 >$DIR/config_num_threads; then
+		echo "$0: Unable to set to number of threads" >&2
+		exit 1
+	fi
+}
+
+config_get_modprobe_limit()
+{
+	if [[ -f ${MODPROBE_LIMIT_FILE} ]] ; then
+		MODPROBE_LIMIT=$(cat $MODPROBE_LIMIT_FILE)
+	fi
+	echo $MODPROBE_LIMIT
+}
+
+config_num_thread_limit_extra()
+{
+	MODPROBE_LIMIT=$(config_get_modprobe_limit)
+	let EXTRA_LIMIT=$MODPROBE_LIMIT+$1
+	config_num_threads $EXTRA_LIMIT
+}
+
+# For special characters use printf directly,
+# refer to kmod_test_0001
+config_set_driver()
+{
+	if ! echo -n $1 >$DIR/config_test_driver; then
+		echo "$0: Unable to set driver" >&2
+		exit 1
+	fi
+}
+
+config_set_fs()
+{
+	if ! echo -n $1 >$DIR/config_test_fs; then
+		echo "$0: Unable to set driver" >&2
+		exit 1
+	fi
+}
+
+config_get_driver()
+{
+	cat $DIR/config_test_driver
+}
+
+config_get_test_result()
+{
+	cat $DIR/test_result
+}
+
+config_reset()
+{
+	if ! echo -n "1" >"$DIR"/reset; then
+		echo "$0: reset shuld have worked" >&2
+		exit 1
+	fi
+}
+
+config_show_config()
+{
+	echo "----------------------------------------------------"
+	cat "$DIR"/config
+	echo "----------------------------------------------------"
+}
+
+config_trigger()
+{
+	if ! echo -n "1" >"$DIR"/trigger_config 2>/dev/null; then
+		echo "$1: FAIL - loading should have worked"
+		config_show_config
+		exit 1
+	fi
+	echo "$1: OK! - loading kmod test"
+}
+
+config_trigger_want_fail()
+{
+	if echo "1" > $DIR/trigger_config 2>/dev/null; then
+		echo "$1: FAIL - test case was expected to fail"
+		config_show_config
+		exit 1
+	fi
+	echo "$1: OK! - kmod test case failed as expected"
+}
+
+config_expect_result()
+{
+	RC=$(config_get_test_result)
+	RC_NAME=$(errno_val_to_name $RC)
+
+	ERRNO_NAME=$2
+	ERRNO=$(errno_name_to_val $ERRNO_NAME)
+
+	if [[ $ERRNO_NAME = "-ERR_ANY" ]]; then
+		if [[ $RC -ge 0 ]]; then
+			echo "$1: FAIL, test expects $ERRNO_NAME - got $RC_NAME ($RC)" >&2
+			config_show_config
+			exit 1
+		fi
+	elif [[ $RC != $ERRNO ]]; then
+		echo "$1: FAIL, test expects $ERRNO_NAME ($ERRNO) - got $RC_NAME ($RC)" >&2
+		config_show_config
+		exit 1
+	fi
+	echo "$1: OK! - Return value: $RC ($RC_NAME), expected $ERRNO_NAME"
+}
+
+kmod_defaults_driver()
+{
+	config_reset
+	modprobe -r $DEFAULT_KMOD_DRIVER
+	config_set_driver $DEFAULT_KMOD_DRIVER
+}
+
+kmod_defaults_fs()
+{
+	config_reset
+	modprobe -r $DEFAULT_KMOD_FS
+	config_set_fs $DEFAULT_KMOD_FS
+	config_set_test_case_fs
+}
+
+kmod_test_0001_driver()
+{
+	NAME='\000'
+
+	kmod_defaults_driver
+	config_num_threads 1
+	printf '\000' >"$DIR"/config_test_driver
+	config_trigger ${FUNCNAME[0]}
+	config_expect_result ${FUNCNAME[0]} MODULE_NOT_FOUND
+}
+
+kmod_test_0001_fs()
+{
+	NAME='\000'
+
+	kmod_defaults_fs
+	config_num_threads 1
+	printf '\000' >"$DIR"/config_test_fs
+	config_trigger ${FUNCNAME[0]}
+	config_expect_result ${FUNCNAME[0]} -EINVAL
+}
+
+kmod_test_0001()
+{
+	kmod_test_0001_driver
+	kmod_test_0001_fs
+}
+
+kmod_test_0002_driver()
+{
+	NAME="nope-$DEFAULT_KMOD_DRIVER"
+
+	kmod_defaults_driver
+	config_set_driver $NAME
+	config_num_threads 1
+	config_trigger ${FUNCNAME[0]}
+	config_expect_result ${FUNCNAME[0]} MODULE_NOT_FOUND
+}
+
+kmod_test_0002_fs()
+{
+	NAME="nope-$DEFAULT_KMOD_FS"
+
+	kmod_defaults_fs
+	config_set_fs $NAME
+	config_trigger ${FUNCNAME[0]}
+	config_expect_result ${FUNCNAME[0]} -EINVAL
+}
+
+kmod_test_0002()
+{
+	kmod_test_0002_driver
+	kmod_test_0002_fs
+}
+
+kmod_test_0003()
+{
+	kmod_defaults_fs
+	config_num_threads 1
+	config_trigger ${FUNCNAME[0]}
+	config_expect_result ${FUNCNAME[0]} SUCCESS
+}
+
+kmod_test_0004()
+{
+	kmod_defaults_fs
+	config_num_threads 2
+	config_trigger ${FUNCNAME[0]}
+	config_expect_result ${FUNCNAME[0]} SUCCESS
+}
+
+kmod_test_0005()
+{
+	kmod_defaults_driver
+	config_trigger ${FUNCNAME[0]}
+	config_expect_result ${FUNCNAME[0]} SUCCESS
+}
+
+kmod_test_0006()
+{
+	kmod_defaults_fs
+	config_trigger ${FUNCNAME[0]}
+	config_expect_result ${FUNCNAME[0]} SUCCESS
+}
+
+kmod_test_0007()
+{
+	kmod_test_0005
+	kmod_test_0006
+}
+
+kmod_test_0008()
+{
+	kmod_defaults_driver
+	MODPROBE_LIMIT=$(config_get_modprobe_limit)
+	let EXTRA=$MODPROBE_LIMIT/6
+	config_num_thread_limit_extra $EXTRA
+	config_trigger ${FUNCNAME[0]}
+	config_expect_result ${FUNCNAME[0]} SUCCESS
+}
+
+kmod_test_0009()
+{
+	kmod_defaults_fs
+	MODPROBE_LIMIT=$(config_get_modprobe_limit)
+	let EXTRA=$MODPROBE_LIMIT/4
+	config_num_thread_limit_extra $EXTRA
+	config_trigger ${FUNCNAME[0]}
+	config_expect_result ${FUNCNAME[0]} SUCCESS
+}
+
+list_tests()
+{
+	echo "Test ID list:"
+	echo
+	echo "TEST_ID x NUM_TEST"
+	echo "TEST_ID:   Test ID"
+	echo "NUM_TESTS: Number of recommended times to run the test"
+	echo
+	echo "0001 x $(get_test_count 0001) - Simple test - 1 thread  for empty string"
+	echo "0002 x $(get_test_count 0002) - Simple test - 1 thread  for modules/filesystems that do not exist"
+	echo "0003 x $(get_test_count 0003) - Simple test - 1 thread  for get_fs_type() only"
+	echo "0004 x $(get_test_count 0004) - Simple test - 2 threads for get_fs_type() only"
+	echo "0005 x $(get_test_count 0005) - multithreaded tests with default setup - request_module() only"
+	echo "0006 x $(get_test_count 0006) - multithreaded tests with default setup - get_fs_type() only"
+	echo "0007 x $(get_test_count 0007) - multithreaded tests with default setup test request_module() and get_fs_type()"
+	echo "0008 x $(get_test_count 0008) - multithreaded - push kmod_concurrent over max_modprobes for request_module()"
+	echo "0009 x $(get_test_count 0009) - multithreaded - push kmod_concurrent over max_modprobes for get_fs_type()"
+}
+
+usage()
+{
+	NUM_TESTS=$(grep -o ' ' <<<"$ALL_TESTS" | grep -c .)
+	let NUM_TESTS=$NUM_TESTS+1
+	MAX_TEST=$(printf "%04d\n" $NUM_TESTS)
+	echo "Usage: $0 [ -t <4-number-digit> ] | [ -w <4-number-digit> ] |"
+	echo "		 [ -s <4-number-digit> ] | [ -c <4-number-digit> <test- count>"
+	echo "           [ all ] [ -h | --help ] [ -l ]"
+	echo ""
+	echo "Valid tests: 0001-$MAX_TEST"
+	echo ""
+	echo "    all     Runs all tests (default)"
+	echo "    -t      Run test ID the number amount of times is recommended"
+	echo "    -w      Watch test ID run until it runs into an error"
+	echo "    -s      Run test ID once"
+	echo "    -c      Run test ID x test-count number of times"
+	echo "    -l      List all test ID list"
+	echo " -h|--help  Help"
+	echo
+	echo "If an error every occurs execution will immediately terminate."
+	echo "If you are adding a new test try using -w <test-ID> first to"
+	echo "make sure the test passes a series of tests."
+	echo
+	echo Example uses:
+	echo
+	echo "${TEST_NAME}.sh		-- executes all tests"
+	echo "${TEST_NAME}.sh -t 0008	-- Executes test ID 0008 number of times is recomended"
+	echo "${TEST_NAME}.sh -w 0008	-- Watch test ID 0008 run until an error occurs"
+	echo "${TEST_NAME}.sh -s 0008	-- Run test ID 0008 once"
+	echo "${TEST_NAME}.sh -c 0008 3	-- Run test ID 0008 three times"
+	echo
+	list_tests
+	exit 1
+}
+
+function test_num()
+{
+	re='^[0-9]+$'
+	if ! [[ $1 =~ $re ]]; then
+		usage
+	fi
+}
+
+function get_test_count()
+{
+	test_num $1
+	TEST_DATA=$(echo $ALL_TESTS | awk '{print $'$1'}')
+	LAST_TWO=${TEST_DATA#*:*}
+	echo ${LAST_TWO%:*}
+}
+
+function get_test_enabled()
+{
+	test_num $1
+	TEST_DATA=$(echo $ALL_TESTS | awk '{print $'$1'}')
+	echo ${TEST_DATA#*:*:}
+}
+
+function run_all_tests()
+{
+	for i in $ALL_TESTS ; do
+		TEST_ID=${i%:*:*}
+		ENABLED=$(get_test_enabled $TEST_ID)
+		TEST_COUNT=$(get_test_count $TEST_ID)
+		if [[ $ENABLED -eq "1" ]]; then
+			test_case $TEST_ID $TEST_COUNT
+		fi
+	done
+}
+
+function watch_log()
+{
+	if [ $# -ne 3 ]; then
+		clear
+	fi
+	date
+	echo "Running test: $2 - run #$1"
+}
+
+function watch_case()
+{
+	i=0
+	while [ 1 ]; do
+
+		if [ $# -eq 1 ]; then
+			test_num $1
+			watch_log $i ${TEST_NAME}_test_$1
+			${TEST_NAME}_test_$1
+		else
+			watch_log $i all
+			run_all_tests
+		fi
+		let i=$i+1
+	done
+}
+
+function test_case()
+{
+	NUM_TESTS=$DEFAULT_NUM_TESTS
+	if [ $# -eq 2 ]; then
+		NUM_TESTS=$2
+	fi
+
+	i=0
+	while [ $i -lt $NUM_TESTS ]; do
+		test_num $1
+		watch_log $i ${TEST_NAME}_test_$1 noclear
+		RUN_TEST=${TEST_NAME}_test_$1
+		$RUN_TEST
+		let i=$i+1
+	done
+}
+
+function parse_args()
+{
+	if [ $# -eq 0 ]; then
+		run_all_tests
+	else
+		if [[ "$1" = "all" ]]; then
+			run_all_tests
+		elif [[ "$1" = "-w" ]]; then
+			shift
+			watch_case $@
+		elif [[ "$1" = "-t" ]]; then
+			shift
+			test_num $1
+			test_case $1 $(get_test_count $1)
+		elif [[ "$1" = "-c" ]]; then
+			shift
+			test_num $1
+			test_num $2
+			test_case $1 $2
+		elif [[ "$1" = "-s" ]]; then
+			shift
+			test_case $1 1
+		elif [[ "$1" = "-l" ]]; then
+			list_tests
+		elif [[ "$1" = "-h" || "$1" = "--help" ]]; then
+			usage
+		else
+			usage
+		fi
+	fi
+}
+
+test_reqs
+allow_user_defaults
+load_req_mod
+
+trap "test_finish" EXIT
+
+parse_args $@
+
+exit 0
diff --git a/tools/testing/selftests/ntb/ntb_test.sh b/tools/testing/selftests/ntb/ntb_test.sh
index 13f5198ba0ee..1c12b5855e4f 100755
--- a/tools/testing/selftests/ntb/ntb_test.sh
+++ b/tools/testing/selftests/ntb/ntb_test.sh
@@ -18,6 +18,7 @@ LIST_DEVS=FALSE
 
 DEBUGFS=${DEBUGFS-/sys/kernel/debug}
 
+DB_BITMASK=0x7FFF
 PERF_RUN_ORDER=32
 MAX_MW_SIZE=0
 RUN_DMA_TESTS=
@@ -38,6 +39,7 @@ function show_help()
 	echo "be highly recommended."
 	echo
 	echo "Options:"
+	echo "  -b BITMASK      doorbell clear bitmask for ntb_tool"
 	echo "  -C              don't cleanup ntb modules on exit"
 	echo "  -d              run dma tests"
 	echo "  -h              show this help message"
@@ -52,8 +54,9 @@ function show_help()
 function parse_args()
 {
 	OPTIND=0
-	while getopts "Cdhlm:r:p:w:" opt; do
+	while getopts "b:Cdhlm:r:p:w:" opt; do
 		case "$opt" in
+		b)  DB_BITMASK=${OPTARG} ;;
 		C)  DONT_CLEANUP=1 ;;
 		d)  RUN_DMA_TESTS=1 ;;
 		h)  show_help; exit 0 ;;
@@ -85,6 +88,10 @@ set -e
 function _modprobe()
 {
         modprobe "$@"
+
+	if [[ "$REMOTE_HOST" != "" ]]; then
+		ssh "$REMOTE_HOST" modprobe "$@"
+	fi
 }
 
 function split_remote()
@@ -154,7 +161,7 @@ function doorbell_test()
 
 	echo "Running db tests on: $(basename $LOC) / $(basename $REM)"
 
-	write_file "c 0xFFFFFFFF" "$REM/db"
+	write_file "c $DB_BITMASK" "$REM/db"
 
 	for ((i=1; i <= 8; i++)); do
 		let DB=$(read_file "$REM/db") || true
diff --git a/tools/testing/selftests/sysctl/Makefile b/tools/testing/selftests/sysctl/Makefile
index b3c33e071f10..95c320b354e8 100644
--- a/tools/testing/selftests/sysctl/Makefile
+++ b/tools/testing/selftests/sysctl/Makefile
@@ -4,8 +4,7 @@
 # No binaries, but make sure arg-less "make" doesn't trigger "run_tests".
 all:
 
-TEST_PROGS := run_numerictests run_stringtests
-TEST_FILES := common_tests
+TEST_PROGS := sysctl.sh
 
 include ../lib.mk
 
diff --git a/tools/testing/selftests/sysctl/common_tests b/tools/testing/selftests/sysctl/common_tests
deleted file mode 100644
index b6862322962f..000000000000
--- a/tools/testing/selftests/sysctl/common_tests
+++ /dev/null
@@ -1,131 +0,0 @@
-#!/bin/sh
-
-TEST_FILE=$(mktemp)
-
-echo "== Testing sysctl behavior against ${TARGET} =="
-
-set_orig()
-{
-	echo "${ORIG}" > "${TARGET}"
-}
-
-set_test()
-{
-	echo "${TEST_STR}" > "${TARGET}"
-}
-
-verify()
-{
-	local seen
-	seen=$(cat "$1")
-	if [ "${seen}" != "${TEST_STR}" ]; then
-		return 1
-	fi
-	return 0
-}
-
-exit_test()
-{
-	if [ ! -z ${old_strict} ]; then
-		echo ${old_strict} > ${WRITES_STRICT}
-	fi
-	exit $rc
-}
-
-trap 'set_orig; rm -f "${TEST_FILE}"' EXIT
-
-rc=0
-
-echo -n "Writing test file ... "
-echo "${TEST_STR}" > "${TEST_FILE}"
-if ! verify "${TEST_FILE}"; then
-	echo "FAIL" >&2
-	exit 1
-else
-	echo "ok"
-fi
-
-echo -n "Checking sysctl is not set to test value ... "
-if verify "${TARGET}"; then
-	echo "FAIL" >&2
-	exit 1
-else
-	echo "ok"
-fi
-
-echo -n "Writing sysctl from shell ... "
-set_test
-if ! verify "${TARGET}"; then
-	echo "FAIL" >&2
-	exit 1
-else
-	echo "ok"
-fi
-
-echo -n "Resetting sysctl to original value ... "
-set_orig
-if verify "${TARGET}"; then
-	echo "FAIL" >&2
-	exit 1
-else
-	echo "ok"
-fi
-
-echo -n "Checking write strict setting ... "
-WRITES_STRICT="${SYSCTL}/kernel/sysctl_writes_strict"
-if [ ! -e ${WRITES_STRICT} ]; then
-	echo "FAIL, but skip in case of old kernel" >&2
-else
-	old_strict=$(cat ${WRITES_STRICT})
-	if [ "$old_strict" = "1" ]; then
-		echo "ok"
-	else
-		echo "FAIL, strict value is 0 but force to 1 to continue" >&2
-		echo "1" > ${WRITES_STRICT}
-	fi
-fi
-
-# Now that we've validated the sanity of "set_test" and "set_orig",
-# we can use those functions to set starting states before running
-# specific behavioral tests.
-
-echo -n "Writing entire sysctl in single write ... "
-set_orig
-dd if="${TEST_FILE}" of="${TARGET}" bs=4096 2>/dev/null
-if ! verify "${TARGET}"; then
-	echo "FAIL" >&2
-	rc=1
-else
-	echo "ok"
-fi
-
-echo -n "Writing middle of sysctl after synchronized seek ... "
-set_test
-dd if="${TEST_FILE}" of="${TARGET}" bs=1 seek=1 skip=1 2>/dev/null
-if ! verify "${TARGET}"; then
-	echo "FAIL" >&2
-	rc=1
-else
-	echo "ok"
-fi
-
-echo -n "Writing beyond end of sysctl ... "
-set_orig
-dd if="${TEST_FILE}" of="${TARGET}" bs=20 seek=2 2>/dev/null
-if verify "${TARGET}"; then
-        echo "FAIL" >&2
-        rc=1
-else
-        echo "ok"
-fi
-
-echo -n "Writing sysctl with multiple long writes ... "
-set_orig
-(perl -e 'print "A" x 50;'; echo "${TEST_STR}") | \
-	dd of="${TARGET}" bs=50 2>/dev/null
-if verify "${TARGET}"; then
-	echo "FAIL" >&2
-	rc=1
-else
-	echo "ok"
-fi
diff --git a/tools/testing/selftests/sysctl/config b/tools/testing/selftests/sysctl/config
new file mode 100644
index 000000000000..6ca14800d755
--- /dev/null
+++ b/tools/testing/selftests/sysctl/config
@@ -0,0 +1 @@
+CONFIG_TEST_SYSCTL=y
diff --git a/tools/testing/selftests/sysctl/run_numerictests b/tools/testing/selftests/sysctl/run_numerictests
deleted file mode 100755
index e6e76c93d948..000000000000
--- a/tools/testing/selftests/sysctl/run_numerictests
+++ /dev/null
@@ -1,10 +0,0 @@
-#!/bin/sh
-
-SYSCTL="/proc/sys"
-TARGET="${SYSCTL}/vm/swappiness"
-ORIG=$(cat "${TARGET}")
-TEST_STR=$(( $ORIG + 1 ))
-
-. ./common_tests
-
-exit_test
diff --git a/tools/testing/selftests/sysctl/run_stringtests b/tools/testing/selftests/sysctl/run_stringtests
deleted file mode 100755
index 857ec667fb02..000000000000
--- a/tools/testing/selftests/sysctl/run_stringtests
+++ /dev/null
@@ -1,77 +0,0 @@
-#!/bin/sh
-
-SYSCTL="/proc/sys"
-TARGET="${SYSCTL}/kernel/domainname"
-ORIG=$(cat "${TARGET}")
-TEST_STR="Testing sysctl"
-
-. ./common_tests
-
-# Only string sysctls support seeking/appending.
-MAXLEN=65
-
-echo -n "Writing entire sysctl in short writes ... "
-set_orig
-dd if="${TEST_FILE}" of="${TARGET}" bs=1 2>/dev/null
-if ! verify "${TARGET}"; then
-	echo "FAIL" >&2
-	rc=1
-else
-	echo "ok"
-fi
-
-echo -n "Writing middle of sysctl after unsynchronized seek ... "
-set_test
-dd if="${TEST_FILE}" of="${TARGET}" bs=1 seek=1 2>/dev/null
-if verify "${TARGET}"; then
-	echo "FAIL" >&2
-	rc=1
-else
-	echo "ok"
-fi
-
-echo -n "Checking sysctl maxlen is at least $MAXLEN ... "
-set_orig
-perl -e 'print "A" x ('"${MAXLEN}"'-2), "B";' | \
-	dd of="${TARGET}" bs="${MAXLEN}" 2>/dev/null
-if ! grep -q B "${TARGET}"; then
-	echo "FAIL" >&2
-	rc=1
-else
-	echo "ok"
-fi
-
-echo -n "Checking sysctl keeps original string on overflow append ... "
-set_orig
-perl -e 'print "A" x ('"${MAXLEN}"'-1), "B";' | \
-	dd of="${TARGET}" bs=$(( MAXLEN - 1 )) 2>/dev/null
-if grep -q B "${TARGET}"; then
-	echo "FAIL" >&2
-	rc=1
-else
-	echo "ok"
-fi
-
-echo -n "Checking sysctl stays NULL terminated on write ... "
-set_orig
-perl -e 'print "A" x ('"${MAXLEN}"'-1), "B";' | \
-	dd of="${TARGET}" bs="${MAXLEN}" 2>/dev/null
-if grep -q B "${TARGET}"; then
-	echo "FAIL" >&2
-	rc=1
-else
-	echo "ok"
-fi
-
-echo -n "Checking sysctl stays NULL terminated on overwrite ... "
-set_orig
-perl -e 'print "A" x ('"${MAXLEN}"'-1), "BB";' | \
-	dd of="${TARGET}" bs=$(( $MAXLEN + 1 )) 2>/dev/null
-if grep -q B "${TARGET}"; then
-	echo "FAIL" >&2
-	rc=1
-else
-	echo "ok"
-fi
-
-exit_test
diff --git a/tools/testing/selftests/sysctl/sysctl.sh b/tools/testing/selftests/sysctl/sysctl.sh
new file mode 100755
index 000000000000..ec232c3cfcaa
--- /dev/null
+++ b/tools/testing/selftests/sysctl/sysctl.sh
@@ -0,0 +1,774 @@
+#!/bin/bash
+# Copyright (C) 2017 Luis R. Rodriguez <mcgrof@kernel.org>
+#
+# This program is free software; you can redistribute it and/or modify it
+# under the terms of the GNU General Public License as published by the Free
+# Software Foundation; either version 2 of the License, or at your option any
+# later version; or, when distributed separately from the Linux kernel or
+# when incorporated into other software packages, subject to the following
+# license:
+#
+# This program is free software; you can redistribute it and/or modify it
+# under the terms of copyleft-next (version 0.3.1 or later) as published
+# at http://copyleft-next.org/.
+
+# This performs a series tests against the proc sysctl interface.
+
+TEST_NAME="sysctl"
+TEST_DRIVER="test_${TEST_NAME}"
+TEST_DIR=$(dirname $0)
+TEST_FILE=$(mktemp)
+
+# This represents
+#
+# TEST_ID:TEST_COUNT:ENABLED
+#
+# TEST_ID: is the test id number
+# TEST_COUNT: number of times we should run the test
+# ENABLED: 1 if enabled, 0 otherwise
+#
+# Once these are enabled please leave them as-is. Write your own test,
+# we have tons of space.
+ALL_TESTS="0001:1:1"
+ALL_TESTS="$ALL_TESTS 0002:1:1"
+ALL_TESTS="$ALL_TESTS 0003:1:1"
+ALL_TESTS="$ALL_TESTS 0004:1:1"
+ALL_TESTS="$ALL_TESTS 0005:3:1"
+
+test_modprobe()
+{
+       if [ ! -d $DIR ]; then
+               echo "$0: $DIR not present" >&2
+               echo "You must have the following enabled in your kernel:" >&2
+               cat $TEST_DIR/config >&2
+               exit 1
+       fi
+}
+
+function allow_user_defaults()
+{
+	if [ -z $DIR ]; then
+		DIR="/sys/module/test_sysctl/"
+	fi
+	if [ -z $DEFAULT_NUM_TESTS ]; then
+		DEFAULT_NUM_TESTS=50
+	fi
+	if [ -z $SYSCTL ]; then
+		SYSCTL="/proc/sys/debug/test_sysctl"
+	fi
+	if [ -z $PROD_SYSCTL ]; then
+		PROD_SYSCTL="/proc/sys"
+	fi
+	if [ -z $WRITES_STRICT ]; then
+		WRITES_STRICT="${PROD_SYSCTL}/kernel/sysctl_writes_strict"
+	fi
+}
+
+function check_production_sysctl_writes_strict()
+{
+	echo -n "Checking production write strict setting ... "
+	if [ ! -e ${WRITES_STRICT} ]; then
+		echo "FAIL, but skip in case of old kernel" >&2
+	else
+		old_strict=$(cat ${WRITES_STRICT})
+		if [ "$old_strict" = "1" ]; then
+			echo "ok"
+		else
+			echo "FAIL, strict value is 0 but force to 1 to continue" >&2
+			echo "1" > ${WRITES_STRICT}
+		fi
+	fi
+
+	if [ -z $PAGE_SIZE ]; then
+		PAGE_SIZE=$(getconf PAGESIZE)
+	fi
+	if [ -z $MAX_DIGITS ]; then
+		MAX_DIGITS=$(($PAGE_SIZE/8))
+	fi
+	if [ -z $INT_MAX ]; then
+		INT_MAX=$(getconf INT_MAX)
+	fi
+	if [ -z $UINT_MAX ]; then
+		UINT_MAX=$(getconf UINT_MAX)
+	fi
+}
+
+test_reqs()
+{
+	uid=$(id -u)
+	if [ $uid -ne 0 ]; then
+		echo $msg must be run as root >&2
+		exit 0
+	fi
+
+	if ! which perl 2> /dev/null > /dev/null; then
+		echo "$0: You need perl installed"
+		exit 1
+	fi
+	if ! which getconf 2> /dev/null > /dev/null; then
+		echo "$0: You need getconf installed"
+		exit 1
+	fi
+	if ! which diff 2> /dev/null > /dev/null; then
+		echo "$0: You need diff installed"
+		exit 1
+	fi
+}
+
+function load_req_mod()
+{
+	trap "test_modprobe" EXIT
+
+	if [ ! -d $DIR ]; then
+		modprobe $TEST_DRIVER
+		if [ $? -ne 0 ]; then
+			exit
+		fi
+	fi
+}
+
+reset_vals()
+{
+	VAL=""
+	TRIGGER=$(basename ${TARGET})
+	case "$TRIGGER" in
+		int_0001)
+			VAL="60"
+			;;
+		int_0002)
+			VAL="1"
+			;;
+		uint_0001)
+			VAL="314"
+			;;
+		string_0001)
+			VAL="(none)"
+			;;
+		*)
+			;;
+	esac
+	echo -n $VAL > $TARGET
+}
+
+set_orig()
+{
+	if [ ! -z $TARGET ]; then
+		echo "${ORIG}" > "${TARGET}"
+	fi
+}
+
+set_test()
+{
+	echo "${TEST_STR}" > "${TARGET}"
+}
+
+verify()
+{
+	local seen
+	seen=$(cat "$1")
+	if [ "${seen}" != "${TEST_STR}" ]; then
+		return 1
+	fi
+	return 0
+}
+
+verify_diff_w()
+{
+	echo "$TEST_STR" | diff -q -w -u - $1
+	return $?
+}
+
+test_rc()
+{
+	if [[ $rc != 0 ]]; then
+		echo "Failed test, return value: $rc" >&2
+		exit $rc
+	fi
+}
+
+test_finish()
+{
+	set_orig
+	rm -f "${TEST_FILE}"
+
+	if [ ! -z ${old_strict} ]; then
+		echo ${old_strict} > ${WRITES_STRICT}
+	fi
+	exit $rc
+}
+
+run_numerictests()
+{
+	echo "== Testing sysctl behavior against ${TARGET} =="
+
+	rc=0
+
+	echo -n "Writing test file ... "
+	echo "${TEST_STR}" > "${TEST_FILE}"
+	if ! verify "${TEST_FILE}"; then
+		echo "FAIL" >&2
+		exit 1
+	else
+		echo "ok"
+	fi
+
+	echo -n "Checking sysctl is not set to test value ... "
+	if verify "${TARGET}"; then
+		echo "FAIL" >&2
+		exit 1
+	else
+		echo "ok"
+	fi
+
+	echo -n "Writing sysctl from shell ... "
+	set_test
+	if ! verify "${TARGET}"; then
+		echo "FAIL" >&2
+		exit 1
+	else
+		echo "ok"
+	fi
+
+	echo -n "Resetting sysctl to original value ... "
+	set_orig
+	if verify "${TARGET}"; then
+		echo "FAIL" >&2
+		exit 1
+	else
+		echo "ok"
+	fi
+
+	# Now that we've validated the sanity of "set_test" and "set_orig",
+	# we can use those functions to set starting states before running
+	# specific behavioral tests.
+
+	echo -n "Writing entire sysctl in single write ... "
+	set_orig
+	dd if="${TEST_FILE}" of="${TARGET}" bs=4096 2>/dev/null
+	if ! verify "${TARGET}"; then
+		echo "FAIL" >&2
+		rc=1
+	else
+		echo "ok"
+	fi
+
+	echo -n "Writing middle of sysctl after synchronized seek ... "
+	set_test
+	dd if="${TEST_FILE}" of="${TARGET}" bs=1 seek=1 skip=1 2>/dev/null
+	if ! verify "${TARGET}"; then
+		echo "FAIL" >&2
+		rc=1
+	else
+		echo "ok"
+	fi
+
+	echo -n "Writing beyond end of sysctl ... "
+	set_orig
+	dd if="${TEST_FILE}" of="${TARGET}" bs=20 seek=2 2>/dev/null
+	if verify "${TARGET}"; then
+		echo "FAIL" >&2
+		rc=1
+	else
+		echo "ok"
+	fi
+
+	echo -n "Writing sysctl with multiple long writes ... "
+	set_orig
+	(perl -e 'print "A" x 50;'; echo "${TEST_STR}") | \
+		dd of="${TARGET}" bs=50 2>/dev/null
+	if verify "${TARGET}"; then
+		echo "FAIL" >&2
+		rc=1
+	else
+		echo "ok"
+	fi
+	test_rc
+}
+
+# Your test must accept digits 3 and 4 to use this
+run_limit_digit()
+{
+	echo -n "Checking ignoring spaces up to PAGE_SIZE works on write ..."
+	reset_vals
+
+	LIMIT=$((MAX_DIGITS -1))
+	TEST_STR="3"
+	(perl -e 'print " " x '$LIMIT';'; echo "${TEST_STR}") | \
+		dd of="${TARGET}" 2>/dev/null
+
+	if ! verify "${TARGET}"; then
+		echo "FAIL" >&2
+		rc=1
+	else
+		echo "ok"
+	fi
+	test_rc
+
+	echo -n "Checking passing PAGE_SIZE of spaces fails on write ..."
+	reset_vals
+
+	LIMIT=$((MAX_DIGITS))
+	TEST_STR="4"
+	(perl -e 'print " " x '$LIMIT';'; echo "${TEST_STR}") | \
+		dd of="${TARGET}" 2>/dev/null
+
+	if verify "${TARGET}"; then
+		echo "FAIL" >&2
+		rc=1
+	else
+		echo "ok"
+	fi
+	test_rc
+}
+
+# You are using an int
+run_limit_digit_int()
+{
+	echo -n "Testing INT_MAX works ..."
+	reset_vals
+	TEST_STR="$INT_MAX"
+	echo -n $TEST_STR > $TARGET
+
+	if ! verify "${TARGET}"; then
+		echo "FAIL" >&2
+		rc=1
+	else
+		echo "ok"
+	fi
+	test_rc
+
+	echo -n "Testing INT_MAX + 1 will fail as expected..."
+	reset_vals
+	let TEST_STR=$INT_MAX+1
+	echo -n $TEST_STR > $TARGET 2> /dev/null
+
+	if verify "${TARGET}"; then
+		echo "FAIL" >&2
+		rc=1
+	else
+		echo "ok"
+	fi
+	test_rc
+
+	echo -n "Testing negative values will work as expected..."
+	reset_vals
+	TEST_STR="-3"
+	echo -n $TEST_STR > $TARGET 2> /dev/null
+	if ! verify "${TARGET}"; then
+		echo "FAIL" >&2
+		rc=1
+	else
+		echo "ok"
+	fi
+	test_rc
+}
+
+# You used an int array
+run_limit_digit_int_array()
+{
+	echo -n "Testing array works as expected ... "
+	TEST_STR="4 3 2 1"
+	echo -n $TEST_STR > $TARGET
+
+	if ! verify_diff_w "${TARGET}"; then
+		echo "FAIL" >&2
+		rc=1
+	else
+		echo "ok"
+	fi
+	test_rc
+
+	echo -n "Testing skipping trailing array elements works ... "
+	# Do not reset_vals, carry on the values from the last test.
+	# If we only echo in two digits the last two are left intact
+	TEST_STR="100 101"
+	echo -n $TEST_STR > $TARGET
+	# After we echo in, to help diff we need to set on TEST_STR what
+	# we expect the result to be.
+	TEST_STR="100 101 2 1"
+
+	if ! verify_diff_w "${TARGET}"; then
+		echo "FAIL" >&2
+		rc=1
+	else
+		echo "ok"
+	fi
+	test_rc
+
+	echo -n "Testing PAGE_SIZE limit on array works ... "
+	# Do not reset_vals, carry on the values from the last test.
+	# Even if you use an int array, you are still restricted to
+	# MAX_DIGITS, this is a known limitation. Test limit works.
+	LIMIT=$((MAX_DIGITS -1))
+	TEST_STR="9"
+	(perl -e 'print " " x '$LIMIT';'; echo "${TEST_STR}") | \
+		dd of="${TARGET}" 2>/dev/null
+
+	TEST_STR="9 101 2 1"
+	if ! verify_diff_w "${TARGET}"; then
+		echo "FAIL" >&2
+		rc=1
+	else
+		echo "ok"
+	fi
+	test_rc
+
+	echo -n "Testing exceeding PAGE_SIZE limit fails as expected ... "
+	# Do not reset_vals, carry on the values from the last test.
+	# Now go over limit.
+	LIMIT=$((MAX_DIGITS))
+	TEST_STR="7"
+	(perl -e 'print " " x '$LIMIT';'; echo "${TEST_STR}") | \
+		dd of="${TARGET}" 2>/dev/null
+
+	TEST_STR="7 101 2 1"
+	if verify_diff_w "${TARGET}"; then
+		echo "FAIL" >&2
+		rc=1
+	else
+		echo "ok"
+	fi
+	test_rc
+}
+
+# You are using an unsigned int
+run_limit_digit_uint()
+{
+	echo -n "Testing UINT_MAX works ..."
+	reset_vals
+	TEST_STR="$UINT_MAX"
+	echo -n $TEST_STR > $TARGET
+
+	if ! verify "${TARGET}"; then
+		echo "FAIL" >&2
+		rc=1
+	else
+		echo "ok"
+	fi
+	test_rc
+
+	echo -n "Testing UINT_MAX + 1 will fail as expected..."
+	reset_vals
+	TEST_STR=$(($UINT_MAX+1))
+	echo -n $TEST_STR > $TARGET 2> /dev/null
+
+	if verify "${TARGET}"; then
+		echo "FAIL" >&2
+		rc=1
+	else
+		echo "ok"
+	fi
+	test_rc
+
+	echo -n "Testing negative values will not work as expected ..."
+	reset_vals
+	TEST_STR="-3"
+	echo -n $TEST_STR > $TARGET 2> /dev/null
+
+	if verify "${TARGET}"; then
+		echo "FAIL" >&2
+		rc=1
+	else
+		echo "ok"
+	fi
+	test_rc
+}
+
+run_stringtests()
+{
+	echo -n "Writing entire sysctl in short writes ... "
+	set_orig
+	dd if="${TEST_FILE}" of="${TARGET}" bs=1 2>/dev/null
+	if ! verify "${TARGET}"; then
+		echo "FAIL" >&2
+		rc=1
+	else
+		echo "ok"
+	fi
+
+	echo -n "Writing middle of sysctl after unsynchronized seek ... "
+	set_test
+	dd if="${TEST_FILE}" of="${TARGET}" bs=1 seek=1 2>/dev/null
+	if verify "${TARGET}"; then
+		echo "FAIL" >&2
+		rc=1
+	else
+		echo "ok"
+	fi
+
+	echo -n "Checking sysctl maxlen is at least $MAXLEN ... "
+	set_orig
+	perl -e 'print "A" x ('"${MAXLEN}"'-2), "B";' | \
+		dd of="${TARGET}" bs="${MAXLEN}" 2>/dev/null
+	if ! grep -q B "${TARGET}"; then
+		echo "FAIL" >&2
+		rc=1
+	else
+		echo "ok"
+	fi
+
+	echo -n "Checking sysctl keeps original string on overflow append ... "
+	set_orig
+	perl -e 'print "A" x ('"${MAXLEN}"'-1), "B";' | \
+		dd of="${TARGET}" bs=$(( MAXLEN - 1 )) 2>/dev/null
+	if grep -q B "${TARGET}"; then
+		echo "FAIL" >&2
+		rc=1
+	else
+		echo "ok"
+	fi
+
+	echo -n "Checking sysctl stays NULL terminated on write ... "
+	set_orig
+	perl -e 'print "A" x ('"${MAXLEN}"'-1), "B";' | \
+		dd of="${TARGET}" bs="${MAXLEN}" 2>/dev/null
+	if grep -q B "${TARGET}"; then
+		echo "FAIL" >&2
+		rc=1
+	else
+		echo "ok"
+	fi
+
+	echo -n "Checking sysctl stays NULL terminated on overwrite ... "
+	set_orig
+	perl -e 'print "A" x ('"${MAXLEN}"'-1), "BB";' | \
+		dd of="${TARGET}" bs=$(( $MAXLEN + 1 )) 2>/dev/null
+	if grep -q B "${TARGET}"; then
+		echo "FAIL" >&2
+		rc=1
+	else
+		echo "ok"
+	fi
+
+	test_rc
+}
+
+sysctl_test_0001()
+{
+	TARGET="${SYSCTL}/int_0001"
+	reset_vals
+	ORIG=$(cat "${TARGET}")
+	TEST_STR=$(( $ORIG + 1 ))
+
+	run_numerictests
+	run_limit_digit
+}
+
+sysctl_test_0002()
+{
+	TARGET="${SYSCTL}/string_0001"
+	reset_vals
+	ORIG=$(cat "${TARGET}")
+	TEST_STR="Testing sysctl"
+	# Only string sysctls support seeking/appending.
+	MAXLEN=65
+
+	run_numerictests
+	run_stringtests
+}
+
+sysctl_test_0003()
+{
+	TARGET="${SYSCTL}/int_0002"
+	reset_vals
+	ORIG=$(cat "${TARGET}")
+	TEST_STR=$(( $ORIG + 1 ))
+
+	run_numerictests
+	run_limit_digit
+	run_limit_digit_int
+}
+
+sysctl_test_0004()
+{
+	TARGET="${SYSCTL}/uint_0001"
+	reset_vals
+	ORIG=$(cat "${TARGET}")
+	TEST_STR=$(( $ORIG + 1 ))
+
+	run_numerictests
+	run_limit_digit
+	run_limit_digit_uint
+}
+
+sysctl_test_0005()
+{
+	TARGET="${SYSCTL}/int_0003"
+	reset_vals
+	ORIG=$(cat "${TARGET}")
+
+	run_limit_digit_int_array
+}
+
+list_tests()
+{
+	echo "Test ID list:"
+	echo
+	echo "TEST_ID x NUM_TEST"
+	echo "TEST_ID:   Test ID"
+	echo "NUM_TESTS: Number of recommended times to run the test"
+	echo
+	echo "0001 x $(get_test_count 0001) - tests proc_dointvec_minmax()"
+	echo "0002 x $(get_test_count 0002) - tests proc_dostring()"
+	echo "0003 x $(get_test_count 0003) - tests proc_dointvec()"
+	echo "0004 x $(get_test_count 0004) - tests proc_douintvec()"
+	echo "0005 x $(get_test_count 0005) - tests proc_douintvec() array"
+}
+
+test_reqs
+
+usage()
+{
+	NUM_TESTS=$(grep -o ' ' <<<"$ALL_TESTS" | grep -c .)
+	let NUM_TESTS=$NUM_TESTS+1
+	MAX_TEST=$(printf "%04d\n" $NUM_TESTS)
+	echo "Usage: $0 [ -t <4-number-digit> ] | [ -w <4-number-digit> ] |"
+	echo "		 [ -s <4-number-digit> ] | [ -c <4-number-digit> <test- count>"
+	echo "           [ all ] [ -h | --help ] [ -l ]"
+	echo ""
+	echo "Valid tests: 0001-$MAX_TEST"
+	echo ""
+	echo "    all     Runs all tests (default)"
+	echo "    -t      Run test ID the number amount of times is recommended"
+	echo "    -w      Watch test ID run until it runs into an error"
+	echo "    -c      Run test ID once"
+	echo "    -s      Run test ID x test-count number of times"
+	echo "    -l      List all test ID list"
+	echo " -h|--help  Help"
+	echo
+	echo "If an error every occurs execution will immediately terminate."
+	echo "If you are adding a new test try using -w <test-ID> first to"
+	echo "make sure the test passes a series of tests."
+	echo
+	echo Example uses:
+	echo
+	echo "$TEST_NAME.sh            -- executes all tests"
+	echo "$TEST_NAME.sh -t 0002    -- Executes test ID 0002 number of times is recomended"
+	echo "$TEST_NAME.sh -w 0002    -- Watch test ID 0002 run until an error occurs"
+	echo "$TEST_NAME.sh -s 0002    -- Run test ID 0002 once"
+	echo "$TEST_NAME.sh -c 0002 3  -- Run test ID 0002 three times"
+	echo
+	list_tests
+	exit 1
+}
+
+function test_num()
+{
+	re='^[0-9]+$'
+	if ! [[ $1 =~ $re ]]; then
+		usage
+	fi
+}
+
+function get_test_count()
+{
+	test_num $1
+	TEST_DATA=$(echo $ALL_TESTS | awk '{print $'$1'}')
+	LAST_TWO=${TEST_DATA#*:*}
+	echo ${LAST_TWO%:*}
+}
+
+function get_test_enabled()
+{
+	test_num $1
+	TEST_DATA=$(echo $ALL_TESTS | awk '{print $'$1'}')
+	echo ${TEST_DATA#*:*:}
+}
+
+function run_all_tests()
+{
+	for i in $ALL_TESTS ; do
+		TEST_ID=${i%:*:*}
+		ENABLED=$(get_test_enabled $TEST_ID)
+		TEST_COUNT=$(get_test_count $TEST_ID)
+		if [[ $ENABLED -eq "1" ]]; then
+			test_case $TEST_ID $TEST_COUNT
+		fi
+	done
+}
+
+function watch_log()
+{
+	if [ $# -ne 3 ]; then
+		clear
+	fi
+	date
+	echo "Running test: $2 - run #$1"
+}
+
+function watch_case()
+{
+	i=0
+	while [ 1 ]; do
+
+		if [ $# -eq 1 ]; then
+			test_num $1
+			watch_log $i ${TEST_NAME}_test_$1
+			${TEST_NAME}_test_$1
+		else
+			watch_log $i all
+			run_all_tests
+		fi
+		let i=$i+1
+	done
+}
+
+function test_case()
+{
+	NUM_TESTS=$DEFAULT_NUM_TESTS
+	if [ $# -eq 2 ]; then
+		NUM_TESTS=$2
+	fi
+
+	i=0
+	while [ $i -lt $NUM_TESTS ]; do
+		test_num $1
+		watch_log $i ${TEST_NAME}_test_$1 noclear
+		RUN_TEST=${TEST_NAME}_test_$1
+		$RUN_TEST
+		let i=$i+1
+	done
+}
+
+function parse_args()
+{
+	if [ $# -eq 0 ]; then
+		run_all_tests
+	else
+		if [[ "$1" = "all" ]]; then
+			run_all_tests
+		elif [[ "$1" = "-w" ]]; then
+			shift
+			watch_case $@
+		elif [[ "$1" = "-t" ]]; then
+			shift
+			test_num $1
+			test_case $1 $(get_test_count $1)
+		elif [[ "$1" = "-c" ]]; then
+			shift
+			test_num $1
+			test_num $2
+			test_case $1 $2
+		elif [[ "$1" = "-s" ]]; then
+			shift
+			test_case $1 1
+		elif [[ "$1" = "-l" ]]; then
+			list_tests
+		elif [[ "$1" = "-h" || "$1" = "--help" ]]; then
+			usage
+		else
+			usage
+		fi
+	fi
+}
+
+test_reqs
+allow_user_defaults
+check_production_sysctl_writes_strict
+load_req_mod
+
+trap "test_finish" EXIT
+
+parse_args $@
+
+exit 0
diff --git a/tools/testing/selftests/timers/Makefile b/tools/testing/selftests/timers/Makefile
index 5801bbefbe89..a9b86133b9b3 100644
--- a/tools/testing/selftests/timers/Makefile
+++ b/tools/testing/selftests/timers/Makefile
@@ -9,7 +9,7 @@ TEST_GEN_PROGS = posix_timers nanosleep nsleep-lat set-timer-lat mqueue-lat \
 
 TEST_GEN_PROGS_EXTENDED = alarmtimer-suspend valid-adjtimex adjtick change_skew \
 		      skew_consistency clocksource-switch freq-step leap-a-day \
-		      leapcrash set-tai set-2038 set-tz
+		      leapcrash set-tai set-2038 set-tz rtctest_setdate
 
 
 include ../lib.mk
diff --git a/tools/testing/selftests/timers/freq-step.c b/tools/testing/selftests/timers/freq-step.c
index e8c61830825a..22312eb4c941 100644
--- a/tools/testing/selftests/timers/freq-step.c
+++ b/tools/testing/selftests/timers/freq-step.c
@@ -229,10 +229,9 @@ static void init_test(void)
 	printf("CLOCK_MONOTONIC_RAW+CLOCK_MONOTONIC precision: %.0f ns\t\t",
 	       1e9 * precision);
 
-	if (precision > MAX_PRECISION) {
-		printf("[SKIP]\n");
-		ksft_exit_skip();
-	}
+	if (precision > MAX_PRECISION)
+		ksft_exit_skip("precision: %.0f ns > MAX_PRECISION: %.0f ns\n",
+				1e9 * precision, 1e9 * MAX_PRECISION);
 
 	printf("[OK]\n");
 	srand(ts.tv_sec ^ ts.tv_nsec);
diff --git a/tools/testing/selftests/timers/rtctest.c b/tools/testing/selftests/timers/rtctest.c
index 4230d3052e5d..f61170f7b024 100644
--- a/tools/testing/selftests/timers/rtctest.c
+++ b/tools/testing/selftests/timers/rtctest.c
@@ -21,6 +21,9 @@
 #include <stdlib.h>
 #include <errno.h>
 
+#ifndef ARRAY_SIZE
+# define ARRAY_SIZE(x) (sizeof(x) / sizeof((x)[0]))
+#endif
 
 /*
  * This expects the new RTC class driver framework, working with
@@ -29,23 +32,84 @@
  */
 static const char default_rtc[] = "/dev/rtc0";
 
+static struct rtc_time cutoff_dates[] = {
+	{
+		.tm_year = 70, /* 1970 -1900 */
+		.tm_mday = 1,
+	},
+	/* signed time_t 19/01/2038 3:14:08 */
+	{
+		.tm_year = 138,
+		.tm_mday = 19,
+	},
+	{
+		.tm_year = 138,
+		.tm_mday = 20,
+	},
+	{
+		.tm_year = 199, /* 2099 -1900 */
+		.tm_mday = 1,
+	},
+	{
+		.tm_year = 200, /* 2100 -1900 */
+		.tm_mday = 1,
+	},
+	/* unsigned time_t 07/02/2106 7:28:15*/
+	{
+		.tm_year = 205,
+		.tm_mon = 1,
+		.tm_mday = 7,
+	},
+	{
+		.tm_year = 206,
+		.tm_mon = 1,
+		.tm_mday = 8,
+	},
+	/* signed time on 64bit in nanoseconds 12/04/2262 01:47:16*/
+	{
+		.tm_year = 362,
+		.tm_mon = 3,
+		.tm_mday = 12,
+	},
+	{
+		.tm_year = 362, /* 2262 -1900 */
+		.tm_mon = 3,
+		.tm_mday = 13,
+	},
+};
+
+static int compare_dates(struct rtc_time *a, struct rtc_time *b)
+{
+	if (a->tm_year != b->tm_year ||
+	    a->tm_mon != b->tm_mon ||
+	    a->tm_mday != b->tm_mday ||
+	    a->tm_hour != b->tm_hour ||
+	    a->tm_min != b->tm_min ||
+	    ((b->tm_sec - a->tm_sec) > 1))
+		return 1;
+
+	return 0;
+}
 
 int main(int argc, char **argv)
 {
-	int i, fd, retval, irqcount = 0;
+	int i, fd, retval, irqcount = 0, dangerous = 0;
 	unsigned long tmp, data;
 	struct rtc_time rtc_tm;
 	const char *rtc = default_rtc;
 	struct timeval start, end, diff;
 
 	switch (argc) {
+	case 3:
+		if (*argv[2] == 'd')
+			dangerous = 1;
 	case 2:
 		rtc = argv[1];
 		/* FALLTHROUGH */
 	case 1:
 		break;
 	default:
-		fprintf(stderr, "usage:  rtctest [rtcdev]\n");
+		fprintf(stderr, "usage:  rtctest [rtcdev] [d]\n");
 		return 1;
 	}
 
@@ -202,7 +266,7 @@ test_PIE:
 		/* not all RTCs support periodic IRQs */
 		if (errno == EINVAL) {
 			fprintf(stderr, "\nNo periodic IRQ support\n");
-			goto done;
+			goto test_DATE;
 		}
 		perror("RTC_IRQP_READ ioctl");
 		exit(errno);
@@ -221,7 +285,7 @@ test_PIE:
 			if (errno == EINVAL) {
 				fprintf(stderr,
 					"\n...Periodic IRQ rate is fixed\n");
-				goto done;
+				goto test_DATE;
 			}
 			perror("RTC_IRQP_SET ioctl");
 			exit(errno);
@@ -269,6 +333,62 @@ test_PIE:
 		}
 	}
 
+test_DATE:
+	if (!dangerous)
+		goto done;
+
+	fprintf(stderr, "\nTesting problematic dates\n");
+
+	for (i = 0; i < ARRAY_SIZE(cutoff_dates); i++) {
+		struct rtc_time current;
+
+		/* Write the new date in RTC */
+		retval = ioctl(fd, RTC_SET_TIME, &cutoff_dates[i]);
+		if (retval == -1) {
+			perror("RTC_SET_TIME ioctl");
+			close(fd);
+			exit(errno);
+		}
+
+		/* Read back */
+		retval = ioctl(fd, RTC_RD_TIME, &current);
+		if (retval == -1) {
+			perror("RTC_RD_TIME ioctl");
+			exit(errno);
+		}
+
+		if(compare_dates(&cutoff_dates[i], &current)) {
+			fprintf(stderr,"Setting date %d failed\n",
+			        cutoff_dates[i].tm_year + 1900);
+			goto done;
+		}
+
+		cutoff_dates[i].tm_sec += 5;
+
+		/* Write the new alarm in RTC */
+		retval = ioctl(fd, RTC_ALM_SET, &cutoff_dates[i]);
+		if (retval == -1) {
+			perror("RTC_ALM_SET ioctl");
+			close(fd);
+			exit(errno);
+		}
+
+		/* Read back */
+		retval = ioctl(fd, RTC_ALM_READ, &current);
+		if (retval == -1) {
+			perror("RTC_ALM_READ ioctl");
+			exit(errno);
+		}
+
+		if(compare_dates(&cutoff_dates[i], &current)) {
+			fprintf(stderr,"Setting alarm %d failed\n",
+			        cutoff_dates[i].tm_year + 1900);
+			goto done;
+		}
+
+		fprintf(stderr, "Setting year %d is OK \n",
+			cutoff_dates[i].tm_year + 1900);
+	}
 done:
 	fprintf(stderr, "\n\n\t\t\t *** Test complete ***\n");
 
diff --git a/tools/testing/selftests/timers/rtctest_setdate.c b/tools/testing/selftests/timers/rtctest_setdate.c
new file mode 100644
index 000000000000..2cb78489eca4
--- /dev/null
+++ b/tools/testing/selftests/timers/rtctest_setdate.c
@@ -0,0 +1,86 @@
+/* Real Time Clock Driver Test
+ *	by: Benjamin Gaignard (benjamin.gaignard@linaro.org)
+ *
+ * To build
+ *	gcc rtctest_setdate.c -o rtctest_setdate
+ *
+ *   This program is free software: you can redistribute it and/or modify
+ *   it under the terms of the GNU General Public License as published by
+ *   the Free Software Foundation, either version 2 of the License, or
+ *   (at your option) any later version.
+ *
+ *   This program is distributed in the hope that it will be useful,
+ *   but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *   GNU General Public License for more details.
+ */
+
+#include <stdio.h>
+#include <linux/rtc.h>
+#include <sys/ioctl.h>
+#include <sys/time.h>
+#include <sys/types.h>
+#include <fcntl.h>
+#include <unistd.h>
+#include <stdlib.h>
+#include <errno.h>
+
+static const char default_time[] = "00:00:00";
+
+int main(int argc, char **argv)
+{
+	int fd, retval;
+	struct rtc_time new, current;
+	const char *rtc, *date;
+	const char *time = default_time;
+
+	switch (argc) {
+	case 4:
+		time = argv[3];
+		/* FALLTHROUGH */
+	case 3:
+		date = argv[2];
+		rtc = argv[1];
+		break;
+	default:
+		fprintf(stderr, "usage: rtctest_setdate <rtcdev> <DD-MM-YYYY> [HH:MM:SS]\n");
+		return 1;
+	}
+
+	fd = open(rtc, O_RDONLY);
+	if (fd == -1) {
+		perror(rtc);
+		exit(errno);
+	}
+
+	sscanf(date, "%d-%d-%d", &new.tm_mday, &new.tm_mon, &new.tm_year);
+	new.tm_mon -= 1;
+	new.tm_year -= 1900;
+	sscanf(time, "%d:%d:%d", &new.tm_hour, &new.tm_min, &new.tm_sec);
+
+	fprintf(stderr, "Test will set RTC date/time to %d-%d-%d, %02d:%02d:%02d.\n",
+		new.tm_mday, new.tm_mon + 1, new.tm_year + 1900,
+		new.tm_hour, new.tm_min, new.tm_sec);
+
+	/* Write the new date in RTC */
+	retval = ioctl(fd, RTC_SET_TIME, &new);
+	if (retval == -1) {
+		perror("RTC_SET_TIME ioctl");
+		close(fd);
+		exit(errno);
+	}
+
+	/* Read back */
+	retval = ioctl(fd, RTC_RD_TIME, &current);
+	if (retval == -1) {
+		perror("RTC_RD_TIME ioctl");
+		exit(errno);
+	}
+
+	fprintf(stderr, "\n\nCurrent RTC date/time is %d-%d-%d, %02d:%02d:%02d.\n",
+		current.tm_mday, current.tm_mon + 1, current.tm_year + 1900,
+		current.tm_hour, current.tm_min, current.tm_sec);
+
+	close(fd);
+	return 0;
+}
diff --git a/virt/kvm/arm/mmu.c b/virt/kvm/arm/mmu.c
index 0e1fc75f3585..2ea21dac0b44 100644
--- a/virt/kvm/arm/mmu.c
+++ b/virt/kvm/arm/mmu.c
@@ -1718,12 +1718,16 @@ static int kvm_test_age_hva_handler(struct kvm *kvm, gpa_t gpa, u64 size, void *
 
 int kvm_age_hva(struct kvm *kvm, unsigned long start, unsigned long end)
 {
+	if (!kvm->arch.pgd)
+		return 0;
 	trace_kvm_age_hva(start, end);
 	return handle_hva_to_gpa(kvm, start, end, kvm_age_hva_handler, NULL);
 }
 
 int kvm_test_age_hva(struct kvm *kvm, unsigned long hva)
 {
+	if (!kvm->arch.pgd)
+		return 0;
 	trace_kvm_test_age_hva(hva);
 	return handle_hva_to_gpa(kvm, hva, hva, kvm_test_age_hva_handler, NULL);
 }
diff --git a/virt/kvm/arm/pmu.c b/virt/kvm/arm/pmu.c
index fc8a723ff387..8a9c42366db7 100644
--- a/virt/kvm/arm/pmu.c
+++ b/virt/kvm/arm/pmu.c
@@ -203,11 +203,15 @@ static u64 kvm_pmu_overflow_status(struct kvm_vcpu *vcpu)
 	return reg;
 }
 
-static void kvm_pmu_check_overflow(struct kvm_vcpu *vcpu)
+static void kvm_pmu_update_state(struct kvm_vcpu *vcpu)
 {
 	struct kvm_pmu *pmu = &vcpu->arch.pmu;
-	bool overflow = !!kvm_pmu_overflow_status(vcpu);
+	bool overflow;
+
+	if (!kvm_arm_pmu_v3_ready(vcpu))
+		return;
 
+	overflow = !!kvm_pmu_overflow_status(vcpu);
 	if (pmu->irq_level == overflow)
 		return;
 
@@ -215,33 +219,11 @@ static void kvm_pmu_check_overflow(struct kvm_vcpu *vcpu)
 
 	if (likely(irqchip_in_kernel(vcpu->kvm))) {
 		int ret = kvm_vgic_inject_irq(vcpu->kvm, vcpu->vcpu_id,
-					      pmu->irq_num, overflow,
-					      &vcpu->arch.pmu);
+					      pmu->irq_num, overflow, pmu);
 		WARN_ON(ret);
 	}
 }
 
-/**
- * kvm_pmu_overflow_set - set PMU overflow interrupt
- * @vcpu: The vcpu pointer
- * @val: the value guest writes to PMOVSSET register
- */
-void kvm_pmu_overflow_set(struct kvm_vcpu *vcpu, u64 val)
-{
-	if (val == 0)
-		return;
-
-	vcpu_sys_reg(vcpu, PMOVSSET_EL0) |= val;
-	kvm_pmu_check_overflow(vcpu);
-}
-
-static void kvm_pmu_update_state(struct kvm_vcpu *vcpu)
-{
-	if (!kvm_arm_pmu_v3_ready(vcpu))
-		return;
-	kvm_pmu_check_overflow(vcpu);
-}
-
 bool kvm_pmu_should_notify_user(struct kvm_vcpu *vcpu)
 {
 	struct kvm_pmu *pmu = &vcpu->arch.pmu;
@@ -303,7 +285,7 @@ static inline struct kvm_vcpu *kvm_pmc_to_vcpu(struct kvm_pmc *pmc)
 }
 
 /**
- * When perf event overflows, call kvm_pmu_overflow_set to set overflow status.
+ * When the perf event overflows, set the overflow status and inform the vcpu.
  */
 static void kvm_pmu_perf_overflow(struct perf_event *perf_event,
 				  struct perf_sample_data *data,
@@ -313,7 +295,12 @@ static void kvm_pmu_perf_overflow(struct perf_event *perf_event,
 	struct kvm_vcpu *vcpu = kvm_pmc_to_vcpu(pmc);
 	int idx = pmc->idx;
 
-	kvm_pmu_overflow_set(vcpu, BIT(idx));
+	vcpu_sys_reg(vcpu, PMOVSSET_EL0) |= BIT(idx);
+
+	if (kvm_pmu_overflow_status(vcpu)) {
+		kvm_make_request(KVM_REQ_IRQ_PENDING, vcpu);
+		kvm_vcpu_kick(vcpu);
+	}
 }
 
 /**
@@ -341,7 +328,7 @@ void kvm_pmu_software_increment(struct kvm_vcpu *vcpu, u64 val)
 			reg = lower_32_bits(reg);
 			vcpu_sys_reg(vcpu, PMEVCNTR0_EL0 + i) = reg;
 			if (!reg)
-				kvm_pmu_overflow_set(vcpu, BIT(i));
+				vcpu_sys_reg(vcpu, PMOVSSET_EL0) |= BIT(i);
 		}
 	}
 }
diff --git a/virt/kvm/arm/vgic/vgic-init.c b/virt/kvm/arm/vgic/vgic-init.c
index 3a0b8999f011..5801261f3add 100644
--- a/virt/kvm/arm/vgic/vgic-init.c
+++ b/virt/kvm/arm/vgic/vgic-init.c
@@ -285,9 +285,6 @@ int vgic_init(struct kvm *kvm)
 	if (ret)
 		goto out;
 
-	if (vgic_has_its(kvm))
-		dist->msis_require_devid = true;
-
 	kvm_for_each_vcpu(i, vcpu, kvm)
 		kvm_vgic_vcpu_enable(vcpu);
 
diff --git a/virt/kvm/arm/vgic/vgic-its.c b/virt/kvm/arm/vgic/vgic-its.c
index 2dff288b3a66..aa6b68db80b4 100644
--- a/virt/kvm/arm/vgic/vgic-its.c
+++ b/virt/kvm/arm/vgic/vgic-its.c
@@ -1598,6 +1598,7 @@ static int vgic_its_create(struct kvm_device *dev, u32 type)
 	INIT_LIST_HEAD(&its->device_list);
 	INIT_LIST_HEAD(&its->collection_list);
 
+	dev->kvm->arch.vgic.msis_require_devid = true;
 	dev->kvm->arch.vgic.has_its = true;
 	its->enabled = false;
 	its->dev = dev;
diff --git a/virt/kvm/arm/vgic/vgic-mmio-v3.c b/virt/kvm/arm/vgic/vgic-mmio-v3.c
index 714fa3933546..408ef06638fc 100644
--- a/virt/kvm/arm/vgic/vgic-mmio-v3.c
+++ b/virt/kvm/arm/vgic/vgic-mmio-v3.c
@@ -369,7 +369,7 @@ static void vgic_mmio_write_propbase(struct kvm_vcpu *vcpu,
 		return;
 
 	do {
-		old_propbaser = dist->propbaser;
+		old_propbaser = READ_ONCE(dist->propbaser);
 		propbaser = old_propbaser;
 		propbaser = update_64bit_reg(propbaser, addr & 4, len, val);
 		propbaser = vgic_sanitise_propbaser(propbaser);
@@ -397,7 +397,7 @@ static void vgic_mmio_write_pendbase(struct kvm_vcpu *vcpu,
 		return;
 
 	do {
-		old_pendbaser = vgic_cpu->pendbaser;
+		old_pendbaser = READ_ONCE(vgic_cpu->pendbaser);
 		pendbaser = old_pendbaser;
 		pendbaser = update_64bit_reg(pendbaser, addr & 4, len, val);
 		pendbaser = vgic_sanitise_pendbaser(pendbaser);
diff --git a/virt/kvm/eventfd.c b/virt/kvm/eventfd.c
index 9120edf3c94b..f2ac53ab8243 100644
--- a/virt/kvm/eventfd.c
+++ b/virt/kvm/eventfd.c
@@ -825,7 +825,7 @@ static int kvm_assign_ioeventfd_idx(struct kvm *kvm,
 	if (ret < 0)
 		goto unlock_fail;
 
-	kvm->buses[bus_idx]->ioeventfd_count++;
+	kvm_get_bus(kvm, bus_idx)->ioeventfd_count++;
 	list_add_tail(&p->list, &kvm->ioeventfds);
 
 	mutex_unlock(&kvm->slots_lock);
@@ -848,6 +848,7 @@ kvm_deassign_ioeventfd_idx(struct kvm *kvm, enum kvm_bus bus_idx,
 {
 	struct _ioeventfd        *p, *tmp;
 	struct eventfd_ctx       *eventfd;
+	struct kvm_io_bus	 *bus;
 	int                       ret = -ENOENT;
 
 	eventfd = eventfd_ctx_fdget(args->fd);
@@ -870,8 +871,9 @@ kvm_deassign_ioeventfd_idx(struct kvm *kvm, enum kvm_bus bus_idx,
 			continue;
 
 		kvm_io_bus_unregister_dev(kvm, bus_idx, &p->dev);
-		if (kvm->buses[bus_idx])
-			kvm->buses[bus_idx]->ioeventfd_count--;
+		bus = kvm_get_bus(kvm, bus_idx);
+		if (bus)
+			bus->ioeventfd_count--;
 		ioeventfd_release(p);
 		ret = 0;
 		break;
diff --git a/virt/kvm/irqchip.c b/virt/kvm/irqchip.c
index 31e40c9e81df..b1286c4e0712 100644
--- a/virt/kvm/irqchip.c
+++ b/virt/kvm/irqchip.c
@@ -230,7 +230,7 @@ int kvm_set_irq_routing(struct kvm *kvm,
 	}
 
 	mutex_lock(&kvm->irq_lock);
-	old = kvm->irq_routing;
+	old = rcu_dereference_protected(kvm->irq_routing, 1);
 	rcu_assign_pointer(kvm->irq_routing, new);
 	kvm_irq_routing_update(kvm);
 	kvm_arch_irq_routing_update(kvm);
diff --git a/virt/kvm/kvm_main.c b/virt/kvm/kvm_main.c
index 19f0ecb9b93e..15252d723b54 100644
--- a/virt/kvm/kvm_main.c
+++ b/virt/kvm/kvm_main.c
@@ -130,6 +130,12 @@ EXPORT_SYMBOL_GPL(kvm_rebooting);
 
 static bool largepages_enabled = true;
 
+#define KVM_EVENT_CREATE_VM 0
+#define KVM_EVENT_DESTROY_VM 1
+static void kvm_uevent_notify_change(unsigned int type, struct kvm *kvm);
+static unsigned long long kvm_createvm_count;
+static unsigned long long kvm_active_vms;
+
 bool kvm_is_reserved_pfn(kvm_pfn_t pfn)
 {
 	if (pfn_valid(pfn))
@@ -187,12 +193,23 @@ static void ack_flush(void *_completed)
 {
 }
 
+static inline bool kvm_kick_many_cpus(const struct cpumask *cpus, bool wait)
+{
+	if (unlikely(!cpus))
+		cpus = cpu_online_mask;
+
+	if (cpumask_empty(cpus))
+		return false;
+
+	smp_call_function_many(cpus, ack_flush, NULL, wait);
+	return true;
+}
+
 bool kvm_make_all_cpus_request(struct kvm *kvm, unsigned int req)
 {
 	int i, cpu, me;
 	cpumask_var_t cpus;
-	bool called = true;
-	bool wait = req & KVM_REQUEST_WAIT;
+	bool called;
 	struct kvm_vcpu *vcpu;
 
 	zalloc_cpumask_var(&cpus, GFP_ATOMIC);
@@ -207,14 +224,9 @@ bool kvm_make_all_cpus_request(struct kvm *kvm, unsigned int req)
 
 		if (cpus != NULL && cpu != -1 && cpu != me &&
 		    kvm_request_needs_ipi(vcpu, req))
-			cpumask_set_cpu(cpu, cpus);
+			__cpumask_set_cpu(cpu, cpus);
 	}
-	if (unlikely(cpus == NULL))
-		smp_call_function_many(cpu_online_mask, ack_flush, NULL, wait);
-	else if (!cpumask_empty(cpus))
-		smp_call_function_many(cpus, ack_flush, NULL, wait);
-	else
-		called = false;
+	called = kvm_kick_many_cpus(cpus, !!(req & KVM_REQUEST_WAIT));
 	put_cpu();
 	free_cpumask_var(cpus);
 	return called;
@@ -293,7 +305,12 @@ EXPORT_SYMBOL_GPL(kvm_vcpu_init);
 
 void kvm_vcpu_uninit(struct kvm_vcpu *vcpu)
 {
-	put_pid(vcpu->pid);
+	/*
+	 * no need for rcu_read_lock as VCPU_RUN is the only place that
+	 * will change the vcpu->pid pointer and on uninit all file
+	 * descriptors are already gone.
+	 */
+	put_pid(rcu_dereference_protected(vcpu->pid, 1));
 	kvm_arch_vcpu_uninit(vcpu);
 	free_page((unsigned long)vcpu->run);
 }
@@ -674,8 +691,8 @@ static struct kvm *kvm_create_vm(unsigned long type)
 	if (init_srcu_struct(&kvm->irq_srcu))
 		goto out_err_no_irq_srcu;
 	for (i = 0; i < KVM_NR_BUSES; i++) {
-		kvm->buses[i] = kzalloc(sizeof(struct kvm_io_bus),
-					GFP_KERNEL);
+		rcu_assign_pointer(kvm->buses[i],
+			kzalloc(sizeof(struct kvm_io_bus), GFP_KERNEL));
 		if (!kvm->buses[i])
 			goto out_err;
 	}
@@ -700,9 +717,9 @@ out_err_no_srcu:
 	hardware_disable_all();
 out_err_no_disable:
 	for (i = 0; i < KVM_NR_BUSES; i++)
-		kfree(kvm->buses[i]);
+		kfree(kvm_get_bus(kvm, i));
 	for (i = 0; i < KVM_ADDRESS_SPACE_NUM; i++)
-		kvm_free_memslots(kvm, kvm->memslots[i]);
+		kvm_free_memslots(kvm, __kvm_memslots(kvm, i));
 	kvm_arch_free_vm(kvm);
 	mmdrop(current->mm);
 	return ERR_PTR(r);
@@ -728,6 +745,7 @@ static void kvm_destroy_vm(struct kvm *kvm)
 	int i;
 	struct mm_struct *mm = kvm->mm;
 
+	kvm_uevent_notify_change(KVM_EVENT_DESTROY_VM, kvm);
 	kvm_destroy_vm_debugfs(kvm);
 	kvm_arch_sync_events(kvm);
 	spin_lock(&kvm_lock);
@@ -735,8 +753,10 @@ static void kvm_destroy_vm(struct kvm *kvm)
 	spin_unlock(&kvm_lock);
 	kvm_free_irq_routing(kvm);
 	for (i = 0; i < KVM_NR_BUSES; i++) {
-		if (kvm->buses[i])
-			kvm_io_bus_destroy(kvm->buses[i]);
+		struct kvm_io_bus *bus = kvm_get_bus(kvm, i);
+
+		if (bus)
+			kvm_io_bus_destroy(bus);
 		kvm->buses[i] = NULL;
 	}
 	kvm_coalesced_mmio_free(kvm);
@@ -748,7 +768,7 @@ static void kvm_destroy_vm(struct kvm *kvm)
 	kvm_arch_destroy_vm(kvm);
 	kvm_destroy_devices(kvm);
 	for (i = 0; i < KVM_ADDRESS_SPACE_NUM; i++)
-		kvm_free_memslots(kvm, kvm->memslots[i]);
+		kvm_free_memslots(kvm, __kvm_memslots(kvm, i));
 	cleanup_srcu_struct(&kvm->irq_srcu);
 	cleanup_srcu_struct(&kvm->srcu);
 	kvm_arch_free_vm(kvm);
@@ -2551,13 +2571,14 @@ static long kvm_vcpu_ioctl(struct file *filp,
 	if (r)
 		return r;
 	switch (ioctl) {
-	case KVM_RUN:
+	case KVM_RUN: {
+		struct pid *oldpid;
 		r = -EINVAL;
 		if (arg)
 			goto out;
-		if (unlikely(vcpu->pid != current->pids[PIDTYPE_PID].pid)) {
+		oldpid = rcu_access_pointer(vcpu->pid);
+		if (unlikely(oldpid != current->pids[PIDTYPE_PID].pid)) {
 			/* The thread running this VCPU changed. */
-			struct pid *oldpid = vcpu->pid;
 			struct pid *newpid = get_task_pid(current, PIDTYPE_PID);
 
 			rcu_assign_pointer(vcpu->pid, newpid);
@@ -2568,6 +2589,7 @@ static long kvm_vcpu_ioctl(struct file *filp,
 		r = kvm_arch_vcpu_ioctl_run(vcpu, vcpu->run);
 		trace_kvm_userspace_exit(vcpu->run->exit_reason, r);
 		break;
+	}
 	case KVM_GET_REGS: {
 		struct kvm_regs *kvm_regs;
 
@@ -3202,6 +3224,7 @@ static int kvm_dev_ioctl_create_vm(unsigned long type)
 		fput(file);
 		return -ENOMEM;
 	}
+	kvm_uevent_notify_change(KVM_EVENT_CREATE_VM, kvm);
 
 	fd_install(r, file);
 	return r;
@@ -3563,7 +3586,7 @@ int kvm_io_bus_register_dev(struct kvm *kvm, enum kvm_bus bus_idx, gpa_t addr,
 {
 	struct kvm_io_bus *new_bus, *bus;
 
-	bus = kvm->buses[bus_idx];
+	bus = kvm_get_bus(kvm, bus_idx);
 	if (!bus)
 		return -ENOMEM;
 
@@ -3592,7 +3615,7 @@ void kvm_io_bus_unregister_dev(struct kvm *kvm, enum kvm_bus bus_idx,
 	int i;
 	struct kvm_io_bus *new_bus, *bus;
 
-	bus = kvm->buses[bus_idx];
+	bus = kvm_get_bus(kvm, bus_idx);
 	if (!bus)
 		return;
 
@@ -3854,6 +3877,56 @@ static const struct file_operations *stat_fops[] = {
 	[KVM_STAT_VM]   = &vm_stat_fops,
 };
 
+static void kvm_uevent_notify_change(unsigned int type, struct kvm *kvm)
+{
+	struct kobj_uevent_env *env;
+	unsigned long long created, active;
+
+	if (!kvm_dev.this_device || !kvm)
+		return;
+
+	spin_lock(&kvm_lock);
+	if (type == KVM_EVENT_CREATE_VM) {
+		kvm_createvm_count++;
+		kvm_active_vms++;
+	} else if (type == KVM_EVENT_DESTROY_VM) {
+		kvm_active_vms--;
+	}
+	created = kvm_createvm_count;
+	active = kvm_active_vms;
+	spin_unlock(&kvm_lock);
+
+	env = kzalloc(sizeof(*env), GFP_KERNEL);
+	if (!env)
+		return;
+
+	add_uevent_var(env, "CREATED=%llu", created);
+	add_uevent_var(env, "COUNT=%llu", active);
+
+	if (type == KVM_EVENT_CREATE_VM) {
+		add_uevent_var(env, "EVENT=create");
+		kvm->userspace_pid = task_pid_nr(current);
+	} else if (type == KVM_EVENT_DESTROY_VM) {
+		add_uevent_var(env, "EVENT=destroy");
+	}
+	add_uevent_var(env, "PID=%d", kvm->userspace_pid);
+
+	if (kvm->debugfs_dentry) {
+		char *tmp, *p = kmalloc(PATH_MAX, GFP_KERNEL);
+
+		if (p) {
+			tmp = dentry_path_raw(kvm->debugfs_dentry, p, PATH_MAX);
+			if (!IS_ERR(tmp))
+				add_uevent_var(env, "STATS_PATH=%s", tmp);
+			kfree(p);
+		}
+	}
+	/* no need for checks, since we are adding at most only 5 keys */
+	env->envp[env->envp_idx++] = NULL;
+	kobject_uevent_env(&kvm_dev.this_device->kobj, KOBJ_CHANGE, env->envp);
+	kfree(env);
+}
+
 static int kvm_init_debug(void)
 {
 	int r = -EEXIST;
diff --git a/virt/kvm/vfio.c b/virt/kvm/vfio.c
index 37d9118fd84b..d99850c462a1 100644
--- a/virt/kvm/vfio.c
+++ b/virt/kvm/vfio.c
@@ -51,6 +51,22 @@ static struct vfio_group *kvm_vfio_group_get_external_user(struct file *filep)
 	return vfio_group;
 }
 
+static bool kvm_vfio_external_group_match_file(struct vfio_group *group,
+					       struct file *filep)
+{
+	bool ret, (*fn)(struct vfio_group *, struct file *);
+
+	fn = symbol_get(vfio_external_group_match_file);
+	if (!fn)
+		return false;
+
+	ret = fn(group, filep);
+
+	symbol_put(vfio_external_group_match_file);
+
+	return ret;
+}
+
 static void kvm_vfio_group_put_external_user(struct vfio_group *vfio_group)
 {
 	void (*fn)(struct vfio_group *);
@@ -231,37 +247,31 @@ static int kvm_vfio_set_group(struct kvm_device *dev, long attr, u64 arg)
 		if (!f.file)
 			return -EBADF;
 
-		vfio_group = kvm_vfio_group_get_external_user(f.file);
-		fdput(f);
-
-		if (IS_ERR(vfio_group))
-			return PTR_ERR(vfio_group);
-
 		ret = -ENOENT;
 
 		mutex_lock(&kv->lock);
 
 		list_for_each_entry(kvg, &kv->group_list, node) {
-			if (kvg->vfio_group != vfio_group)
+			if (!kvm_vfio_external_group_match_file(kvg->vfio_group,
+								f.file))
 				continue;
 
 			list_del(&kvg->node);
+			kvm_arch_end_assignment(dev->kvm);
+#ifdef CONFIG_SPAPR_TCE_IOMMU
+			kvm_spapr_tce_release_vfio_group(dev->kvm,
+							 kvg->vfio_group);
+#endif
+			kvm_vfio_group_set_kvm(kvg->vfio_group, NULL);
 			kvm_vfio_group_put_external_user(kvg->vfio_group);
 			kfree(kvg);
 			ret = 0;
 			break;
 		}
 
-		kvm_arch_end_assignment(dev->kvm);
-
 		mutex_unlock(&kv->lock);
 
-#ifdef CONFIG_SPAPR_TCE_IOMMU
-		kvm_spapr_tce_release_vfio_group(dev->kvm, vfio_group);
-#endif
-		kvm_vfio_group_set_kvm(vfio_group, NULL);
-
-		kvm_vfio_group_put_external_user(vfio_group);
+		fdput(f);
 
 		kvm_vfio_update_coherency(dev);