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Fix the formatting of logical statements to end the line with the
logical operator.
Signed-off-by: John Youn <johnyoun@synopsys.com>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
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Fix misaligned and over 80-character comments.
Signed-off-by: John Youn <johnyoun@synopsys.com>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
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Fixes checkpatch warning:
WARNING: function definition argument 'struct dwc2_hsotg *' should also
have an identifier name
Signed-off-by: John Youn <johnyoun@synopsys.com>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
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This commmit is the result of running checkpatch --fix.
The results were verified for correctness. Some of the fixes result in
line over 80 char which we will fix manually later.
The following is a summary of what was done by checkpatch:
* Remove externs on function prototypes.
* Replace symbolic permissions with octal.
* Align code to open parens.
* Replace 'unsigned' with 'unsigned int'.
* Remove unneccessary blank lines.
* Add blank lines after declarations.
* Add spaces around operators.
* Remove unnecessary spaces after casts.
* Replace 'x == NULL' with '!x'.
* Replace kzalloc() with kcalloc().
* Concatenate multi-line strings.
* Use the BIT() macro.
Signed-off-by: John Youn <johnyoun@synopsys.com>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
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As IN request has to be allocated in set_alt() and released in
disable() we cannot use mutex to protect it as we cannot sleep
in those funcitons. Let's replace this mutex with a spinlock.
Cc: stable@vger.kernel.org
Tested-by: David Lechner <david@lechnology.com>
Signed-off-by: Krzysztof Opasiak <k.opasiak@samsung.com>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
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When we unlock our spinlock to copy data to user we may get
disabled by USB host and free the whole list of completed out
requests including the one from which we are copying the data
to user memory.
To prevent from this let's remove our working element from
the list and place it back only if there is sth left when we
finish with it.
Fixes: 99c515005857 ("usb: gadget: hidg: register OUT INT endpoint for SET_REPORT")
Cc: stable@vger.kernel.org
Tested-by: David Lechner <david@lechnology.com>
Signed-off-by: Krzysztof Opasiak <k.opasiak@samsung.com>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
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Requests for out endpoint are allocated in bind() function
but never released.
This commit ensures that all pending requests are released
when we disable out endpoint.
Fixes: 99c515005857 ("usb: gadget: hidg: register OUT INT endpoint for SET_REPORT")
Cc: stable@vger.kernel.org
Tested-by: David Lechner <david@lechnology.com>
Signed-off-by: Krzysztof Opasiak <k.opasiak@samsung.com>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
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At least macOS seems to be sending
ClearFeature(ENDPOINT_HALT) to endpoints which
aren't Halted. This makes DWC3's CLEARSTALL command
time out which causes several issues for the driver.
Instead, let's just return 0 and bail out early.
Cc: <stable@vger.kernel.org>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
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When handing the SETUP packet by composite_setup(), we will release the
dwc->lock. If we get the 'USB_GADGET_DELAYED_STATUS' result from setup
function, which means we need to delay handling the STATUS phase.
But during the lock release period, maybe the request for handling delay
STATUS phase has been queued into list before we set 'dwc->delayed_status'
flag or entering 'EP0_STATUS_PHASE' phase, then we will miss the chance
to handle the STATUS phase. Thus we should check if the request for delay
STATUS phase has been enqueued when entering 'EP0_STATUS_PHASE' phase in
dwc3_ep0_xfernotready(), if so, we should handle it.
Signed-off-by: Baolin Wang <baolin.wang@linaro.org>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
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This patch replaces the deprecated extcon API as following:
- extcon_set_cable_state_() -> extcon_set_state_sync()
Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
Acked-by: Felipe Balbi <felipe.balbi@linux.intel.com>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
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This patch uses the resource-managed extcon API for extcon_register_notifier()
and replaces the deprecated extcon API as following:
- extcon_get_cable_state_() -> extcon_get_state()
Cc: linux-omap@vger.kernel.org
Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
Acked-by: Felipe Balbi <felipe.balbi@linux.intel.com>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
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This patch replaces the deprecated extcon API as following:
- extcon_get_cable_state_() -> extcon_get_state()
Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
Acked-by: Felipe Balbi <felipe.balbi@linux.intel.com>
Acked-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
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This patch uses the resource-managed extcon API for extcon_register_notifier()
and replaces the deprecated extcon API as following:
- extcon_get_cable_state_() -> extcon_get_state()
Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
Acked-by: Felipe Balbi <felipe.balbi@linux.intel.com>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
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This patch uses the resource-managed extcon API for extcon_register_notifier()
and replaces the deprecated extcon API as following:
- extcon_get_cable_state_() -> extcon_get_state()
Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
Acked-by: Felipe Balbi <felipe.balbi@linux.intel.com>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
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This patch uses the resource-managed extcon API for extcon_register_notifier()
and replaces the deprecated extcon API as following:
- extcon_get_cable_state_() -> extcon_get_state()
Cc: linux-omap@vger.kernel.org
Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
Acked-by: Felipe Balbi <felipe.balbi@linux.intel.com>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
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Instead of passing quirk_ep_out_aligned_size, we can use one extra TRB
to align transfer to wMaxPacketSize.
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
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Allocate a coherent buffer of 1024 bytes (size of a single superspeed
bulk packet) to serve as bounce buffer for an extra TRB needed to align
transfers to wMaxPacketSize.
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
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This new internal function will be used to solve a minor issue with dwc3
which exists in regards to short packets with OUT endpoints. Currently
we're asking gadget driver to *always* send us aligned requests; however
if we have enough TRBs we can easily append one extra TRB chained to the
previous and keep a throw away 1024 byte buffer around for that.
The actual fix will come in a separate patch, this is merely in
preparation for such fix.
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
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We are already passing struct dwc3_request * to dwc3_prepare_one_trb(),
because of that there's no need to extract dma address and length in the
caller. We can let dwc3_prepare_one_trb() itself handle that part.
This simplifies the prototype of the function by removing two arguments.
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
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If it is out of memory, we should return -ENOMEM;
Signed-off-by: Peter Chen <peter.chen@nxp.com>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
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For boolean variables true/false is preferred over 1/0 for readability.
Acked-by: John Youn <johnyoun@synopsys.com>
Signed-off-by: Nicholas Mc Guire <hofrat@osadl.org>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
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ulseep_range() uses hrtimers and provides no advantage over msleep()
for larger delays. Fix up the 20+ ms delays here passing the adjusted "min"
value to msleep(). This helps reduce the load on the hrtimer subsystem.
Acked-by: John Youn <johnyoun@synopsys.com>
Signed-off-by: Nicholas Mc Guire <hofrat@osadl.org>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
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Exynos is DT-only, so there's no need for a platform MODALIAS.
Signed-off-by: Javier Martinez Canillas <javier@osg.samsung.com>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
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dwc3-exynos prints debug message when suspend clock is not specified.
The suspend clock is optional and driver can work without it.
This debug message doesn't add any value and leads to confusion and
concern. Remove it.
Signed-off-by: Shuah Khan <shuahkh@osg.samsung.com>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
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Declare usb_gadget_ops structures as const as they are only stored in
the ops field of a usb_gadget structure. This field is of type const, so
usb_gadget_ops structures having this property can be declared const
too.
Done using Coccinelle:
@r1 disable optional_qualifier@
identifier i;
position p;
@@
static struct usb_gadget_ops i@p={...};
@ok1@
identifier r1.i;
position p;
struct fotg210_udc fotg210;
@@
fotg210.gadget.ops=&i@p
@bad@
position p!={r1.p,ok1.p};
identifier r1.i;
@@
i@p
@depends on !bad disable optional_qualifier@
identifier r1.i;
@@
+const
struct usb_gadget_ops i;
File size before:
text data bss dec hex filename
7559 384 8 7951 1f0f usb/gadget/udc/fotg210-udc.o
File size after:
text data bss dec hex filename
7655 288 8 7951 1f0f usb/gadget/udc/fotg210-udc.o
Signed-off-by: Bhumika Goyal <bhumirks@gmail.com>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
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Commit 05ee799f2021 ("usb: dwc2: Move gadget settings into core_params")
changes to type u16 for DT binding "g-rx-fifo-size" and
"g-np-tx-fifo-size" but use type u32 for "g-tx-fifo-size". Finally the
the first two parameters cannot be passed successfully with wrong data
format. This is found the data transferring broken on 96boards Hikey.
This patch is to change all parameters to u32 type, and verified on
Hikey board the DT parameters can pass successfully.
[johnyoun: minor rebase]
Signed-off-by: Leo Yan <leo.yan@linaro.org>
Signed-off-by: John Youn <johnyoun@synopsys.com>
Tested-by: John Stultz <john.stultz@linaro.org>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
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trivial fix to typo in dev_dbg message
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
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pnp string is usually much shorter than 1k so let's stop wasting 1k of
memory for its buffer and make it dynamically alocated.
This also removes 1k len limitation for pnp_string and
adds a new line after string content if required.
Signed-off-by: Krzysztof Opasiak <k.opasiak@samsung.com>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
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Generally in SysFS and ConfigFS files are new line terminated.
Also most of USB functions adds a trailing newline to each attribute.
Let's follow this convention also in ethernet functions.
Signed-off-by: Krzysztof Opasiak <k.opasiak@samsung.com>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
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Since:
commit 855ed04a3758 ("usb: gadget: udc-core: independent registration
of gadgets and gadget drivers")
if we load gadget module but there is no free udc available
then it will be stored on a pending gadgets list.
$ modprobe g_zero.ko
$ modprobe g_ether.ko
[] udc-core: couldn't find an available UDC - added [g_ether] to list
of pending drivers
We scan this list each time when new UDC appears in system.
But we can get a free UDC each time after gadget unbind.
This commit add scanning of that list directly after unbinding
gadget from udc.
Thanks to this, when we unload first gadget:
$ rmmod g_zero.ko
gadget which is pending is automatically
attached to that UDC (if name matches).
Fixes: 855ed04a3758 ("usb: gadget: udc-core: independent registration of gadgets and gadget drivers")
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Krzysztof Opasiak <k.opasiak@samsung.com>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc
Pull char/misc driver fixes from Greg KH:
"Here are some small char/misc driver fixes for 4.10-rc4 that resolve
some reported issues.
The MEI driver issue resolves a lot of problems that people have been
having, as does the mem driver fix. The other minor fixes resolve
other reported issues.
All of these have been in linux-next for a while"
* tag 'char-misc-4.10-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc:
vme: Fix wrong pointer utilization in ca91cx42_slave_get
auxdisplay: fix new ht16k33 build errors
ppdev: don't print a free'd string
extcon: return error code on failure
drivers: char: mem: Fix thinkos in kmem address checks
mei: bus: enable OS version only for SPT and newer
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git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core
Pull driver core fix from Greg KH:
"Here is a single patch being reverted to remove a feature that was
added in 4.10-rc1 that isn't quite ready for release.
It will be redone as a debugfs file instead of a sysfs file in the
future"
* tag 'driver-core-4.10-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core:
Revert "driver core: Add deferred_probe attribute to devices in sysfs"
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git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty
Pull tty/serial fixes from Greg KH:
"Here are some small tty/serial driver fixes for 4.10-rc4 to resolve a
number of reported issues.
Nothing major here at all, one revert of a problematic patch, and some
other tiny bugfixes. Full details are in the shortlog below.
All have been in linux-next with no reported issues"
* tag 'tty-4.10-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty:
sysrq: attach sysrq handler correctly for 32-bit kernel
Revert "tty: serial: 8250: add CON_CONSDEV to flags"
Clearing FIFOs in RS485 emulation mode causes subsequent transmits to break
8250_pci: Fix potential use-after-free in error path
tty/serial: atmel: RS485 half duplex w/DMA: enable RX after TX is done
tty/serial: atmel_serial: BUG: stop DMA from transmitting in stop_tx
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git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb
Pull USB fixes from Greg KH:
"Here are a few small USB driver fixes for 4.10-rc4 to resolve some
reported issues.
The "largest" here is a number of bugs being fixed in the ch341
usb-serial driver, to hopefully resolve the mess of different devices
floating around that use this driver that have been having problems
with the 4.10-rc1 release.
There's also a tiny musb fix that I missed in the last pull request,
as well as the traditional xhci fix rounding out the batch.
All have been in linux-next with no reported issues"
* tag 'usb-4.10-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb:
xhci: fix deadlock at host remove by running watchdog correctly
USB: serial: ch341: fix control-message error handling
usb: musb: fix runtime PM in debugfs
wusbcore: Fix one more crypto-on-the-stack bug
USB: serial: kl5kusb105: fix line-state error handling
USB: serial: ch341: fix baud rate and line-control handling
USB: serial: ch341: fix line settings after reset-resume
USB: serial: ch341: fix resume after reset
USB: serial: ch341: fix open error handling
USB: serial: ch341: fix modem-control and B0 handling
USB: serial: ch341: fix open and resume after B0
USB: serial: ch341: fix initial modem-control state
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git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux
Pull i2c fixes from Wolfram Sang:
"Bugfixes for I2C. Mostly core this time which is a bit unusual but
nothing really scary in there"
* 'i2c/for-current' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux:
i2c: piix4: Avoid race conditions with IMC
i2c: fix spelling mistake: "insufficent" -> "insufficient"
i2c: print correct device invalid address
i2c: do not enable fall back to Host Notify by default
i2c: fix kernel memory disclosure in dev interface
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull EFI fixes from Ingo Molnar:
"A number of regression fixes:
- Fix a boot hang on machines that have somewhat unusual memory map
entries of phys_addr=0x0 num_pages=0, which broke due to a recent
commit. This commit got cherry-picked from the v4.11 queue because
the bug is affecting real machines.
- Fix a boot hang also reported by KASAN, caused by incorrect init
ordering introduced by a recent optimization.
- Fix a recent robustification fix to allocate_new_fdt_and_exit_boot()
that introduced an invalid assumption. Neither bugs were seen in
the wild AFAIK"
* 'efi-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
efi/x86: Prune invalid memory map entries and fix boot regression
x86/efi: Don't allocate memmap through memblock after mm_init()
efi/libstub/arm*: Pass latest memory map to the kernel
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Pull block fixes from Jens Axboe:
- the virtio_blk stack DMA corruption fix from Christoph, fixing and
issue with VMAP stacks.
- O_DIRECT blkbits calculation fix from Chandan.
- discard regression fix from Christoph.
- queue init error handling fixes for nbd and virtio_blk, from Omar and
Jeff.
- two small nvme fixes, from Christoph and Guilherme.
- rename of blk_queue_zone_size and bdev_zone_size to _sectors instead,
to more closely follow what we do in other places in the block layer.
This interface is new for this series, so let's get the naming right
before releasing a kernel with this feature. From Damien.
* 'for-linus' of git://git.kernel.dk/linux-block:
block: don't try to discard from __blkdev_issue_zeroout
sd: remove __data_len hack for WRITE SAME
nvme: use blk_rq_payload_bytes
scsi: use blk_rq_payload_bytes
block: add blk_rq_payload_bytes
block: Rename blk_queue_zone_size and bdev_zone_size
nvme: apply DELAY_BEFORE_CHK_RDY quirk at probe time too
nvme-rdma: fix nvme_rdma_queue_is_ready
virtio_blk: fix panic in initialization error path
nbd: blk_mq_init_queue returns an error code on failure, not NULL
virtio_blk: avoid DMA to stack for the sense buffer
do_direct_IO: Use inode->i_blkbits to compute block count to be cleaned
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git://git.infradead.org/users/vkoul/slave-dma
Pull dmaengine fixes from Vinod Koul:
"The fixes this time around are spread over drivers, pretty normal
update:
- PCI ID for SKL ioatdma, workaround for SKX and
ioat_alloc_chan_resources sleepy allocation fix
- dw kconfig typo fix
- null pointer deref for stm32
- MAINTAINERS Update for at_hdmac
- pl330 runtime pm fixes
- omap-dma port window fix
- rcar-dmac unmap slave resource fix"
* tag 'dmaengine-fix-4.10-rc4' of git://git.infradead.org/users/vkoul/slave-dma:
dmaengine: rcar-dmac: unmap slave resource when channel is freed
dmaengine: omap-dma: Fix the port_window support
dmaengine: iota: ioat_alloc_chan_resources should not perform sleeping allocations.
dmaengine: pl330: Fix runtime PM support for terminated transfers
MAINTAINERS: dmaengine: Update + Hand over the at_hdmac driver to Ludovic
dmaengine: omap-dma: Fix dynamic lch_map allocation
dmaengine: ti-dma-crossbar: Add some 'of_node_put()' in error path.
dmaengine: stm32-dma: Fix null pointer dereference in stm32_dma_tx_status
dmaengine: stm32-dma: Set correct args number for DMA request from DT
dmaengine: dw: fix typo in Kconfig
dmaengine: ioatdma: workaround SKX ioatdma version
dmaengine: ioatdma: Add Skylake PCI Dev ID
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This reverts commit 6751667a29d6fd64afb9ce30567ad616b68ed789.
Rob Herring objected to it, and a replacement for it will be added using
debugfs in the future.
Cc: Ben Hutchings <ben.hutchings@codethink.co.uk>
Reported-by: Rob Herring <robh@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Pull VFIO fixes from Alex Williamson:
- Cleanups and bug fixes for the mtty sample driver (Dan Carpenter)
- Export and make use of has_capability() to fix incorrect use of
ns_capable() for testing task capabilities (Jike Song)
* tag 'vfio-v4.10-rc4' of git://github.com/awilliam/linux-vfio:
vfio/type1: Remove pid_namespace.h include
vfio iommu type1: fix the testing of capability for remote task
capability: export has_capability
vfio-mdev: remove some dead code
vfio-mdev: buffer overflow in ioctl()
vfio-mdev: return -EFAULT if copy_to_user() fails
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Now that we have the blk_rq_payload_bytes helper available to determine
the actual I/O size we don't need to mess around with __data_len for
WRITE SAME.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Hannes Reinecke <hare@suse.com>
Reviewed-by: Sagi Grimberg <sagi@grimberg.me>
Signed-off-by: Jens Axboe <axboe@fb.com>
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The new blk_rq_payload_bytes generalizes the payload length hacks
that nvme_map_len did before.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Hannes Reinecke <hare@suse.com>
Reviewed-by: Sagi Grimberg <sagi@grimberg.me>
Signed-off-by: Jens Axboe <axboe@fb.com>
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Without that we'll pass a wrong payload size in cmd->sdb, which
can lead to hangs with drivers that need the total transfer size.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reported-by: Chris Valean <v-chvale@microsoft.com>
Reported-by: Dexuan Cui <decui@microsoft.com>
Fixes: f9d03f96 ("block: improve handling of the magic discard payload")
Reviewed-by: Hannes Reinecke <hare@suse.com>
Reviewed-by: Sagi Grimberg <sagi@grimberg.me>
Signed-off-by: Jens Axboe <axboe@fb.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi
Pull SCSI fixes from James Bottomley:
"The major fix is the bfa firmware, since the latest 10Gb cards fail
probing with the current firmware.
The rest is a set of minor fixes: one missed Kconfig dependency
causing randconfig failures, a missed error return on an error leg, a
change for how multiqueue waits on a blocked device and a don't reset
while in reset fix"
* tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi:
scsi: bfa: Increase requested firmware version to 3.2.5.1
scsi: snic: Return error code on memory allocation failure
scsi: fnic: Avoid sending reset to firmware when another reset is in progress
scsi: qedi: fix build, depends on UIO
scsi: scsi-mq: Wait for .queue_rq() if necessary
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git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input
Pull input updates from Dmitry Torokhov:
"Small driver fixups"
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input:
Input: elants_i2c - avoid divide by 0 errors on bad touchscreen data
Input: adxl34x - make it enumerable in ACPI environment
Input: ALPS - fix TrackStick Y axis handling for SS5 hardware
Input: synaptics-rmi4 - fix F03 build error when serio is module
Input: xpad - use correct product id for x360w controllers
Input: synaptics_i2c - change msleep to usleep_range for small msecs
Input: i8042 - add Pegatron touchpad to noloop table
Input: joydev - remove unused linux/miscdevice.h include
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Using has_capability() rather than ns_capable(), we're no longer using
this header.
Cc: Jike Song <jike.song@intel.com>
Cc: Kirti Wankhede <kwankhede@nvidia.com>
Signed-off-by: Alex Williamson <alex.williamson@redhat.com>
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The slave mapping should be removed together with other channel
resources when the channel is freed. If it's not unmapped it will hang
around forever after the channel is freed.
Fixes: 9f878603dbdb7db3 ("dmaengine: rcar-dmac: add iommu support for slave transfers")
Reported-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
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Before the mdev enhancement type1 iommu used capable() to test the
capability of current task; in the course of mdev development a
new requirement, testing for another task other than current, was
raised. ns_capable() was used for this purpose, however it still
tests current, the only difference is, in a specified namespace.
Fix it by using has_capability() instead, which tests the cap for
specified task in init_user_ns, the same namespace as capable().
Cc: Gerd Hoffmann <kraxel@redhat.com>
Signed-off-by: Jike Song <jike.song@intel.com>
Reviewed-by: James Morris <james.l.morris@oracle.com>
Reviewed-by: Kirti Wankhede <kwankhede@nvidia.com>
Signed-off-by: Alex Williamson <alex.williamson@redhat.com>
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On AMD's SB800 and upwards, the SMBus is shared with the Integrated
Micro Controller (IMC).
The platform provides a hardware semaphore to avoid race conditions
among them. (Check page 288 of the SB800-Series Southbridges Register
Reference Guide http://support.amd.com/TechDocs/45482.pdf)
Without this patch, many access to the SMBus end with an invalid
transaction or even with the bus stalled.
Reported-by: Alexandre Desnoyers <alex@qtec.com>
Signed-off-by: Ricardo Ribalda Delgado <ricardo.ribalda@gmail.com>
Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com>:
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
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Trivial fix to spelling mistake in WARN message, insufficient has
an insufficient number of i's in the spelling.
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
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