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2019-05-13of_net: Fix missing of_find_device_by_node ref count dropPetr Štetiar1-1/+4
of_find_device_by_node takes a reference to the embedded struct device which needs to be dropped after use. Fixes: d01f449c008a ("of_net: add NVMEM support to of_get_mac_address") Reported-by: kbuild test robot <lkp@intel.com> Reported-by: Julia Lawall <julia.lawall@lip6.fr> Signed-off-by: Petr Štetiar <ynezz@true.cz> Reviewed-by: Andrew Lunn <andrew@lunn.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-05-11of_net: remove nvmem-mac-address propertyPetr Štetiar1-23/+6
In commit d01f449c008a ("of_net: add NVMEM support to of_get_mac_address") I've added `nvmem-mac-address` property which was wrong idea as I've allocated the property with devm_kzalloc and then added it to DT, so then 2 entities would be refcounting the allocation. So if the driver unbinds, the buffer is freed, but DT code would be still referencing that memory. I'm removing this property completely instead of fixing it, as it's not needed to have it. Fixes: d01f449c008a ("of_net: add NVMEM support to of_get_mac_address") Suggested-by: Rob Herring <robh@kernel.org> Signed-off-by: Petr Štetiar <ynezz@true.cz> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-05-08Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-nextLinus Torvalds1-3/+51
Pull networking updates from David Miller: "Highlights: 1) Support AES128-CCM ciphers in kTLS, from Vakul Garg. 2) Add fib_sync_mem to control the amount of dirty memory we allow to queue up between synchronize RCU calls, from David Ahern. 3) Make flow classifier more lockless, from Vlad Buslov. 4) Add PHY downshift support to aquantia driver, from Heiner Kallweit. 5) Add SKB cache for TCP rx and tx, from Eric Dumazet. This reduces contention on SLAB spinlocks in heavy RPC workloads. 6) Partial GSO offload support in XFRM, from Boris Pismenny. 7) Add fast link down support to ethtool, from Heiner Kallweit. 8) Use siphash for IP ID generator, from Eric Dumazet. 9) Pull nexthops even further out from ipv4/ipv6 routes and FIB entries, from David Ahern. 10) Move skb->xmit_more into a per-cpu variable, from Florian Westphal. 11) Improve eBPF verifier speed and increase maximum program size, from Alexei Starovoitov. 12) Eliminate per-bucket spinlocks in rhashtable, and instead use bit spinlocks. From Neil Brown. 13) Allow tunneling with GUE encap in ipvs, from Jacky Hu. 14) Improve link partner cap detection in generic PHY code, from Heiner Kallweit. 15) Add layer 2 encap support to bpf_skb_adjust_room(), from Alan Maguire. 16) Remove SKB list implementation assumptions in SCTP, your's truly. 17) Various cleanups, optimizations, and simplifications in r8169 driver. From Heiner Kallweit. 18) Add memory accounting on TX and RX path of SCTP, from Xin Long. 19) Switch PHY drivers over to use dynamic featue detection, from Heiner Kallweit. 20) Support flow steering without masking in dpaa2-eth, from Ioana Ciocoi. 21) Implement ndo_get_devlink_port in netdevsim driver, from Jiri Pirko. 22) Increase the strict parsing of current and future netlink attributes, also export such policies to userspace. From Johannes Berg. 23) Allow DSA tag drivers to be modular, from Andrew Lunn. 24) Remove legacy DSA probing support, also from Andrew Lunn. 25) Allow ll_temac driver to be used on non-x86 platforms, from Esben Haabendal. 26) Add a generic tracepoint for TX queue timeouts to ease debugging, from Cong Wang. 27) More indirect call optimizations, from Paolo Abeni" * git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next: (1763 commits) cxgb4: Fix error path in cxgb4_init_module net: phy: improve pause mode reporting in phy_print_status dt-bindings: net: Fix a typo in the phy-mode list for ethernet bindings net: macb: Change interrupt and napi enable order in open net: ll_temac: Improve error message on error IRQ net/sched: remove block pointer from common offload structure net: ethernet: support of_get_mac_address new ERR_PTR error net: usb: smsc: fix warning reported by kbuild test robot staging: octeon-ethernet: Fix of_get_mac_address ERR_PTR check net: dsa: support of_get_mac_address new ERR_PTR error net: dsa: sja1105: Fix status initialization in sja1105_get_ethtool_stats vrf: sit mtu should not be updated when vrf netdev is the link net: dsa: Fix error cleanup path in dsa_init_module l2tp: Fix possible NULL pointer dereference taprio: add null check on sched_nest to avoid potential null pointer dereference net: mvpp2: cls: fix less than zero check on a u32 variable net_sched: sch_fq: handle non connected flows net_sched: sch_fq: do not assume EDT packets are ordered net: hns3: use devm_kcalloc when allocating desc_cb net: hns3: some cleanup for struct hns3_enet_ring ...
2019-05-08Merge tag 'devicetree-for-5.2' of ↵Linus Torvalds8-26/+62
git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux Pull Devicetree updates from Rob Herring: - Fix possible memory leak in reserved-memory failure case - Support for DMA parent bus which are not a parent node - Clang -Wunsequenced fix - Remove some unnecessary prints on memory alloc failures - Various printk msg and comment fixes - Update DT schema tools repository location - Convert simple-framebuffer binding to DT schema - Bindings for isl68137 and ir38064 trivial devices - New documentation on binding do's and don't's for binding writers to ignore * tag 'devicetree-for-5.2' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux: (22 commits) of: unittest: Remove error printing on OOM of: irq: Remove WARN_ON() for kzalloc() failure dt-bindings: pinctrl: fix bias-pull,up typo dt-bindings: Update schema project location to devicetree.org github group of: fix clang -Wunsequenced for be32_to_cpu() of/device.c: fix the wrong comments dt-bindings: Add isl68137 as a trivial device dt-bindings: Add ir38064 as a trivial device of: del redundant type conversion dt-bindings: mfd: axp20x: Add fallback for axp805 of: Improve of_phandle_iterator_next() error message dt-bindings: connector: Spelling mistake dt-bindings: Add schemas for simple-framebuffer of: address: Add support for the parent DMA bus of: address: Retrieve a parent through a callback in __of_translate_address dt-bindings: bus: Add binding for the Allwinner MBUS controller dt-bindings: interconnect: Add a dma interconnect name of: use correct function prototype for of_overlay_fdt_apply() of: reserved_mem: fix reserve memory leak of: property: Document that of_graph_get_endpoint_by_regs needs of_node_put ...
2019-05-06of_net: add NVMEM support to of_get_mac_addressPetr Štetiar1-3/+51
Many embedded devices have information such as MAC addresses stored inside NVMEMs like EEPROMs and so on. Currently there are only two drivers in the tree which benefit from NVMEM bindings. Adding support for NVMEM into every other driver would mean adding a lot of repetitive code. This patch allows us to configure MAC addresses in various devices like ethernet and wireless adapters directly from of_get_mac_address, which is already used by almost every driver in the tree. Predecessor of this patch which used directly MTD layer has originated in OpenWrt some time ago and supports already about 497 use cases in 357 device tree files. Cc: Alban Bedel <albeu@free.fr> Signed-off-by: Felix Fietkau <nbd@nbd.name> Signed-off-by: John Crispin <john@phrozen.org> Signed-off-by: Petr Štetiar <ynezz@true.cz> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-05-03of: unittest: Remove error printing on OOMGeert Uytterhoeven1-9/+4
There is no need to print a backtrace or other error message if kzalloc(), kmemdup(), or devm_kzalloc() fails, as the memory allocation core already takes care of that. Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> Signed-off-by: Rob Herring <robh@kernel.org>
2019-05-03of: irq: Remove WARN_ON() for kzalloc() failureGeert Uytterhoeven1-1/+1
There is no need to print a backtrace if kzalloc() fails, as the memory allocation core already takes care of that. Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> Signed-off-by: Rob Herring <robh@kernel.org>
2019-05-01of/device.c: fix the wrong commentsJojo Zeng1-1/+1
the comments which discribed the input parameters of of_match_device(). the name is changed, so fix it. Signed-off-by: Jojo Zeng <jojo_zeng@126.com> Reviewed-by: Frank Rowand <frank.rowand@sony.com> Signed-off-by: Rob Herring <robh@kernel.org>
2019-04-29of: del redundant type conversionxiaojiangfeng1-1/+1
The type of variable l in early_init_dt_scan_chosen is int, there is no need to convert to int. Signed-off-by: xiaojiangfeng <xiaojiangfeng@huawei.com> Reviewed-by: Frank Rowand <frank.rowand@sony.com> Signed-off-by: Rob Herring <robh@kernel.org>
2019-04-19of_net: Fix residues after of_get_nvmem_mac_address removalPetr Štetiar1-1/+0
I've discovered following discrepancy in the bindings/net/ethernet.txt documentation, where it states following: - nvmem-cells: phandle, reference to an nvmem node for the MAC address; - nvmem-cell-names: string, should be "mac-address" if nvmem is to be.. which is actually misleading and confusing. There are only two ethernet drivers in the tree, cadence/macb and davinci which supports this properties. This nvmem-cell* properties were introduced in commit 9217e566bdee ("of_net: Implement of_get_nvmem_mac_address helper"), but commit afa64a72b862 ("of: net: kill of_get_nvmem_mac_address()") forget to properly clean up this parts. So this patch fixes the documentation by moving the nvmem-cell* properties at the appropriate places. While at it, I've removed unused include as well. Cc: Bartosz Golaszewski <bgolaszewski@baylibre.com> Fixes: afa64a72b862 ("of: net: kill of_get_nvmem_mac_address()") Signed-off-by: Petr Štetiar <ynezz@true.cz> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-04-11of: Improve of_phandle_iterator_next() error messageFlorian Fainelli1-2/+3
Understanding why of_phandle_iterator_next() returns an error can sometimes be hard to decipher based solely on the error message, a typical error example is that #foo-cells = <X> and the phandle property used has a smaller number of cells specified, e.g.: #thermal-sensor-cells = <1>; phandle = <&scmi_sensor> instead of: phandle <&scmi_sensor 0>; Instead, make it clear what the expectations are towards debugging incorrect Device Tree faster: OF: /thermal-zones/scmi-thermal: #thermal-sensor-cells = 1, found 0 instead Signed-off-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: Rob Herring <robh@kernel.org>
2019-04-11of: address: Add support for the parent DMA busMaxime Ripard1-2/+26
Some SoCs have devices that are using a separate bus from the main bus to perform DMA. These buses might have some restrictions and/or different mapping than from the CPU side, so we'd need to express those using the usual dma-ranges, but using a different DT node than the node's parent. Now that the generic interconnect bindings are available, we can model an interconnect with the reserved name "dma-mem" for those use-cases. Reviewed-by: Robin Murphy <robin.murphy@arm.com> Signed-off-by: Maxime Ripard <maxime.ripard@bootlin.com> Signed-off-by: Rob Herring <robh@kernel.org>
2019-04-11of: address: Retrieve a parent through a callback in __of_translate_addressMaxime Ripard1-5/+9
The __of_translate_address function is used to translate the device tree addresses to physical addresses using the various ranges property to create the offset. However, it's shared between the CPU addresses (based on the ranges property) and the DMA addresses (based on dma-ranges). Since we're going to add support for a DMA parent node that is not the DT parent node, we need to change the logic a bit to have a callback function that will retrieve the parent node we should use. Reviewed-by: Robin Murphy <robin.murphy@arm.com> Signed-off-by: Maxime Ripard <maxime.ripard@bootlin.com> Signed-off-by: Rob Herring <robh@kernel.org>
2019-04-10of: reserved_mem: fix reserve memory leakpierre Kuo1-5/+17
The __reserved_mem_init_node will call region specific reserved memory init codes, but once all compatibled init codes failed, the memory region will left in memory.reserved and cause leakage. Take cma reserve memory DTS for example, if user declare 1MB size, which is not align to (PAGE_SIZE << max(MAX_ORDER - 1, pageblock_order)), rmem_cma_setup will return -EINVAL. Meanwhile, rmem_dma_setup will also return -EINVAL since "reusable" property is not set. If finally there is no reserved memory init pick up this memory, kernel will left the 1MB leak in memory.reserved. This patch will remove this kind of memory from memory.reserved, only when __reserved_mem_init_node return neither 0 nor -ENOENT. Signed-off-by: pierre Kuo <vichy.kuo@gmail.com> Signed-off-by: Rob Herring <robh@kernel.org>
2019-04-10of: property: Document that of_graph_get_endpoint_by_regs needs of_node_putMaxime Ripard1-1/+1
The node returned by of_graph_get_endpoint_by_regs has a reference taken, and we need to put that reference back when done with the node. However, the documentation for that node doesn't mention it, so let's make sure it does. Signed-off-by: Maxime Ripard <maxime.ripard@bootlin.com> Signed-off-by: Rob Herring <robh@kernel.org>
2019-03-12of: fix kmemleak crash caused by imbalance in early memory reservationMike Rapoport1-10/+3
Marc Gonzalez reported the following kmemleak crash: Unable to handle kernel paging request at virtual address ffffffc021e00000 Mem abort info: ESR = 0x96000006 Exception class = DABT (current EL), IL = 32 bits SET = 0, FnV = 0 EA = 0, S1PTW = 0 Data abort info: ISV = 0, ISS = 0x00000006 CM = 0, WnR = 0 swapper pgtable: 4k pages, 39-bit VAs, pgdp = (____ptrval____) [ffffffc021e00000] pgd=000000017e3ba803, pud=000000017e3ba803, pmd=0000000000000000 Internal error: Oops: 96000006 [#1] PREEMPT SMP Modules linked in: CPU: 6 PID: 523 Comm: kmemleak Tainted: G S W 5.0.0-rc1 #13 Hardware name: Qualcomm Technologies, Inc. MSM8998 v1 MTP (DT) pstate: 80000085 (Nzcv daIf -PAN -UAO) pc : scan_block+0x70/0x190 lr : scan_block+0x6c/0x190 Process kmemleak (pid: 523, stack limit = 0x(____ptrval____)) Call trace: scan_block+0x70/0x190 scan_gray_list+0x108/0x1c0 kmemleak_scan+0x33c/0x7c0 kmemleak_scan_thread+0x98/0xf0 kthread+0x11c/0x120 ret_from_fork+0x10/0x1c Code: f9000fb4 d503201f 97ffffd2 35000580 (f9400260) The crash happens when a no-map area is allocated in early_init_dt_alloc_reserved_memory_arch(). The allocated region is registered with kmemleak, but it is then removed from memblock using memblock_remove() that is not kmemleak-aware. Replacing memblock_phys_alloc_range() with memblock_find_in_range() makes sure that the allocated memory is not added to kmemleak and then memblock_remove()'ing this memory is safe. As a bonus, since memblock_find_in_range() ensures the allocation in the specified range, the bounds check can be removed. [rppt@linux.ibm.com: of: fix parameters order for call to memblock_find_in_range()] Link: http://lkml.kernel.org/r/20190221112619.GC32004@rapoport-lnx Link: http://lkml.kernel.org/r/20190213181921.GB15270@rapoport-lnx Fixes: 3f0c820664483 ("drivers: of: add initialization code for dynamic reserved memory") Signed-off-by: Mike Rapoport <rppt@linux.ibm.com> Acked-by: Marek Szyprowski <m.szyprowski@samsung.com> Acked-by: Prateek Patel <prpatel@nvidia.com> Tested-by: Marc Gonzalez <marc.w.gonzalez@free.fr> Cc: Rob Herring <robh+dt@kernel.org> Cc: Frank Rowand <frowand.list@gmail.com> Cc: Catalin Marinas <catalin.marinas@arm.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2019-03-12treewide: add checks for the return value of memblock_alloc*()Mike Rapoport2-2/+14
Add check for the return value of memblock_alloc*() functions and call panic() in case of error. The panic message repeats the one used by panicing memblock allocators with adjustment of parameters to include only relevant ones. The replacement was mostly automated with semantic patches like the one below with manual massaging of format strings. @@ expression ptr, size, align; @@ ptr = memblock_alloc(size, align); + if (!ptr) + panic("%s: Failed to allocate %lu bytes align=0x%lx\n", __func__, size, align); [anders.roxell@linaro.org: use '%pa' with 'phys_addr_t' type] Link: http://lkml.kernel.org/r/20190131161046.21886-1-anders.roxell@linaro.org [rppt@linux.ibm.com: fix format strings for panics after memblock_alloc] Link: http://lkml.kernel.org/r/1548950940-15145-1-git-send-email-rppt@linux.ibm.com [rppt@linux.ibm.com: don't panic if the allocation in sparse_buffer_init fails] Link: http://lkml.kernel.org/r/20190131074018.GD28876@rapoport-lnx [akpm@linux-foundation.org: fix xtensa printk warning] Link: http://lkml.kernel.org/r/1548057848-15136-20-git-send-email-rppt@linux.ibm.com Signed-off-by: Mike Rapoport <rppt@linux.ibm.com> Signed-off-by: Anders Roxell <anders.roxell@linaro.org> Reviewed-by: Guo Ren <ren_guo@c-sky.com> [c-sky] Acked-by: Paul Burton <paul.burton@mips.com> [MIPS] Acked-by: Heiko Carstens <heiko.carstens@de.ibm.com> [s390] Reviewed-by: Juergen Gross <jgross@suse.com> [Xen] Reviewed-by: Geert Uytterhoeven <geert@linux-m68k.org> [m68k] Acked-by: Max Filippov <jcmvbkbc@gmail.com> [xtensa] Cc: Catalin Marinas <catalin.marinas@arm.com> Cc: Christophe Leroy <christophe.leroy@c-s.fr> Cc: Christoph Hellwig <hch@lst.de> Cc: "David S. Miller" <davem@davemloft.net> Cc: Dennis Zhou <dennis@kernel.org> Cc: Greentime Hu <green.hu@gmail.com> Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Cc: Guan Xuetao <gxt@pku.edu.cn> Cc: Guo Ren <guoren@kernel.org> Cc: Mark Salter <msalter@redhat.com> Cc: Matt Turner <mattst88@gmail.com> Cc: Michael Ellerman <mpe@ellerman.id.au> Cc: Michal Simek <monstr@monstr.eu> Cc: Petr Mladek <pmladek@suse.com> Cc: Richard Weinberger <richard@nod.at> Cc: Rich Felker <dalias@libc.org> Cc: Rob Herring <robh+dt@kernel.org> Cc: Rob Herring <robh@kernel.org> Cc: Russell King <linux@armlinux.org.uk> Cc: Stafford Horne <shorne@gmail.com> Cc: Tony Luck <tony.luck@intel.com> Cc: Vineet Gupta <vgupta@synopsys.com> Cc: Yoshinori Sato <ysato@users.sourceforge.jp> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2019-03-12memblock: drop __memblock_alloc_base()Mike Rapoport1-5/+2
The __memblock_alloc_base() function tries to allocate a memory up to the limit specified by its max_addr parameter. Depending on the value of this parameter, the __memblock_alloc_base() can is replaced with the appropriate memblock_phys_alloc*() variant. Link: http://lkml.kernel.org/r/1548057848-15136-9-git-send-email-rppt@linux.ibm.com Signed-off-by: Mike Rapoport <rppt@linux.ibm.com> Acked-by: Rob Herring <robh@kernel.org> Cc: Catalin Marinas <catalin.marinas@arm.com> Cc: Christophe Leroy <christophe.leroy@c-s.fr> Cc: Christoph Hellwig <hch@lst.de> Cc: "David S. Miller" <davem@davemloft.net> Cc: Dennis Zhou <dennis@kernel.org> Cc: Geert Uytterhoeven <geert@linux-m68k.org> Cc: Greentime Hu <green.hu@gmail.com> Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Cc: Guan Xuetao <gxt@pku.edu.cn> Cc: Guo Ren <guoren@kernel.org> Cc: Guo Ren <ren_guo@c-sky.com> [c-sky] Cc: Heiko Carstens <heiko.carstens@de.ibm.com> Cc: Juergen Gross <jgross@suse.com> [Xen] Cc: Mark Salter <msalter@redhat.com> Cc: Matt Turner <mattst88@gmail.com> Cc: Max Filippov <jcmvbkbc@gmail.com> Cc: Michael Ellerman <mpe@ellerman.id.au> Cc: Michal Simek <monstr@monstr.eu> Cc: Paul Burton <paul.burton@mips.com> Cc: Petr Mladek <pmladek@suse.com> Cc: Richard Weinberger <richard@nod.at> Cc: Rich Felker <dalias@libc.org> Cc: Rob Herring <robh+dt@kernel.org> Cc: Russell King <linux@armlinux.org.uk> Cc: Stafford Horne <shorne@gmail.com> Cc: Tony Luck <tony.luck@intel.com> Cc: Vineet Gupta <vgupta@synopsys.com> Cc: Yoshinori Sato <ysato@users.sourceforge.jp> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2019-03-10Merge tag 'dma-mapping-5.1' of git://git.infradead.org/users/hch/dma-mappingLinus Torvalds1-3/+3
Pull DMA mapping updates from Christoph Hellwig: - add debugfs support for dumping dma-debug information (Corentin Labbe) - Kconfig cleanups (Andy Shevchenko and me) - debugfs cleanups (Greg Kroah-Hartman) - improve dma_map_resource and use it in the media code - arch_setup_dma_ops / arch_teardown_dma_ops cleanups - various small cleanups and improvements for the per-device coherent allocator - make the DMA mask an upper bound and don't fail "too large" dma mask in the remaning two architectures - this will allow big driver cleanups in the following merge windows * tag 'dma-mapping-5.1' of git://git.infradead.org/users/hch/dma-mapping: (21 commits) Documentation/DMA-API-HOWTO: update dma_mask sections sparc64/pci_sun4v: allow large DMA masks sparc64/iommu: allow large DMA masks sparc64: refactor the ali DMA quirk ccio: allow large DMA masks dma-mapping: remove the DMA_MEMORY_EXCLUSIVE flag dma-mapping: remove dma_mark_declared_memory_occupied dma-mapping: move CONFIG_DMA_CMA to kernel/dma/Kconfig dma-mapping: improve selection of dma_declare_coherent availability dma-mapping: remove an incorrect __iommem annotation of: select OF_RESERVED_MEM automatically device.h: dma_mem is only needed for HAVE_GENERIC_DMA_COHERENT mfd/sm501: depend on HAS_DMA dma-mapping: add a kconfig symbol for arch_teardown_dma_ops availability dma-mapping: add a kconfig symbol for arch_setup_dma_ops availability dma-mapping: move debug configuration options to kernel/dma dma-debug: add dumping facility via debugfs dma: debug: no need to check return value of debugfs_create functions videobuf2: replace a layering violation with dma_map_resource dma-mapping: don't BUG when calling dma_map_resource on RAM ...
2019-03-10Merge tag 'devicetree-for-5.1' of ↵Linus Torvalds2-7/+14
git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux Pull Devicetree updates from Rob Herring: - Fix a unittest failure on UML. Preparation for converting to kunit test framework. - Add annotations to dtx_diff output - Fix unittest reporting of expected error - Move DMA configuration for virtual devices into the driver that needs it (s5p-mfc) - Vendor prefixes for feiyang and techstar - Convert ARM GIC, GICv3, and L2x0 to DT schema - Add r8a7778/9 HSCIF serial bindings * tag 'devicetree-for-5.1' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux: of: unittest: unflatten device tree on UML when testing dt-bindings: Add vendor prefix for feiyang dt-bindings: Add vendor prefix for techstar dt-bindings: display: add missing semicolon in example of: mark early_init_dt_alloc_reserved_memory_arch static of: add dtc annotations functionality to dtx_diff of: unittest: add caution to function header comment of: unittest: remove report of expected error dt-bindings: interrupt-controller: Convert ARM GICv3 to json-schema dt-bindings: interrupt-controller: Convert ARM GIC to json-schema dt-bindings: arm: l2x0: Convert L2 cache to json-schema media: s5p-mfc: Fix memdev DMA configuration dt-bindings: serial: sh-sci: Document r8a7778/9 HSCIF bindings
2019-02-28of: unittest: unflatten device tree on UML when testingBrendan Higgins1-0/+4
UML supports enabling OF, and is useful for running the device tree tests, so add support for unflattening device tree blobs so we can actually use it. Signed-off-by: Brendan Higgins <brendanhiggins@google.com> Reviewed-by: Frank Rowand <frank.rowand@sony.com> Signed-off-by: Rob Herring <robh@kernel.org>
2019-02-28of: mark early_init_dt_alloc_reserved_memory_arch staticChristoph Hellwig1-1/+1
This function is only used in of_reserved_mem.c, and never overridden despite the __weak marker. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Rob Herring <robh@kernel.org>
2019-02-20dma-mapping: improve selection of dma_declare_coherent availabilityChristoph Hellwig1-1/+2
This API is primarily used through DT entries, but two architectures and two drivers call it directly. So instead of selecting the config symbol for random architectures pull it in implicitly for the actual users. Also rename the Kconfig option to describe the feature better. Signed-off-by: Christoph Hellwig <hch@lst.de> Acked-by: Paul Burton <paul.burton@mips.com> # MIPS Acked-by: Lee Jones <lee.jones@linaro.org> Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-02-13of: select OF_RESERVED_MEM automaticallyChristoph Hellwig1-3/+2
The OF_RESERVED_MEM can be used if we have either CMA or the generic declare coherent code built and we support the early flattened DT. So don't bother making it a user visible options that is selected by most configs that fit the above category, but just select it when the requirements are met. Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Rob Herring <robh@kernel.org>
2019-02-13of: unittest: add caution to function header commentFrank Rowand1-1/+5
Name of function attach_node_and_children() is misleading because if the node already exists in the livetree then only the node's properties are attached. This works for the existing test data, but add comment warning of this misleading name. Signed-off-by: Frank Rowand <frank.rowand@sony.com> Signed-off-by: Rob Herring <robh@kernel.org>
2019-02-13of: unittest: remove report of expected errorFrank Rowand1-1/+4
update_node_properties() reports an error when the test data contains a node (such as "/aliases") that already exists in the base devicetree. The error is caused by of_fdt_unflatten_tree() autogenerating the "name" property, thus both the existing node and the new node will have a property with the same name. Suppress reporting the known error. Signed-off-by: Frank Rowand <frank.rowand@sony.com> Signed-off-by: Rob Herring <robh@kernel.org>
2019-02-05net: phy: fixed-phy: Drop GPIO from fixed_phy_add()Linus Walleij1-8/+1
All users of the fixed_phy_add() pass -1 as GPIO number to the fixed phy driver, and all users of fixed_phy_register() pass -1 as GPIO number as well, except for the device tree MDIO bus. Any new users should create a proper device and pass the GPIO as a descriptor associated with the device so delete the GPIO argument from the calls and drop the code looking requesting a GPIO in fixed_phy_add(). In fixed phy_register(), investigate the "fixed-link" node and pick the GPIO descriptor from "link-gpios" if this property exists. Move the corresponding code out of of_mdio.c as the fixed phy code anyways requires OF to be in use. Tested-by: Andrew Lunn <andrew@lunn.ch> Signed-off-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-01-22media: s5p-mfc: Fix memdev DMA configurationRobin Murphy1-4/+0
Having of_reserved_mem_device_init() forcibly reconfigure DMA for all callers, potentially overriding the work done by a bus-specific .dma_configure method earlier, is at best a bad idea and at worst actively harmful. If drivers really need virtual devices to own dma-coherent memory, they should explicitly configure those devices based on the appropriate firmware node as they create them. It looks like the only driver not passing in a proper OF platform device is s5p-mfc, so move the rogue of_dma_configure() call into that driver where it logically belongs. Reviewed-by: Marek Szyprowski <m.szyprowski@samsung.com> Acked-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org> Signed-off-by: Robin Murphy <robin.murphy@arm.com> Signed-off-by: Rob Herring <robh@kernel.org>
2019-01-16OF: properties: add missing of_node_putJulia Lawall1-0/+1
Add an of_node_put when the result of of_graph_get_remote_port_parent is not available. The semantic match that finds this problem is as follows (http://coccinelle.lip6.fr): // <smpl> @r exists@ local idexpression e; expression x; @@ e = of_graph_get_remote_port_parent(...); ... when != x = e when != true e == NULL when != of_node_put(e) when != of_fwnode_handle(e) ( return e; | *return ...; ) // </smpl> Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr> Cc: stable@vger.kernel.org Signed-off-by: Rob Herring <robh@kernel.org>
2019-01-11of: Remove struct device_node.type pointerRob Herring4-11/+0
Now that all users of device_node.type pointer have been removed in favor of accessor functions, we can remove it. Cc: Frank Rowand <frowand.list@gmail.com> Cc: devicetree@vger.kernel.org Signed-off-by: Rob Herring <robh@kernel.org>
2018-12-29Merge tag 'devicetree-for-4.21' of ↵Linus Torvalds16-154/+546
git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux Pull Devicetree updates from Rob Herring: "The biggest highlight here is the start of using json-schema for DT bindings. Being able to validate bindings has been discussed for years with little progress. - Initial support for DT bindings using json-schema language. This is the start of converting DT bindings from free-form text to a structured format. - Reworking of initrd address initialization. This moves to using the phys address instead of virt addr in the DT parsing code. This rework was motivated by CONFIG_DEV_BLK_INITRD causing unnecessary rebuilding of lots of files. - Fix stale phandle entries in phandle cache - DT overlay validation improvements. This exposed several memory leak bugs which have been fixed. - Use node name and device_type helper functions in DT code - Last remaining conversions to using %pOFn printk specifier instead of device_node.name directly - Create new common RTC binding doc and move all trivial RTC devices out of trivial-devices.txt. - New bindings for Freescale MAG3110 magnetometer, Cadence Sierra PHY, and Xen shared memory - Update dtc to upstream version v1.4.7-57-gf267e674d145" * tag 'devicetree-for-4.21' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux: (68 commits) of: __of_detach_node() - remove node from phandle cache of: of_node_get()/of_node_put() nodes held in phandle cache gpio-omap.txt: add reg and interrupts properties dt-bindings: mrvl,intc: fix a trivial typo dt-bindings: iio: magnetometer: add dt-bindings for freescale mag3110 dt-bindings: Convert trivial-devices.txt to json-schema dt-bindings: arm: mrvl: amend Browstone compatible string dt-bindings: arm: Convert Tegra board/soc bindings to json-schema dt-bindings: arm: Convert ZTE board/soc bindings to json-schema dt-bindings: arm: Add missing Xilinx boards dt-bindings: arm: Convert Xilinx board/soc bindings to json-schema dt-bindings: arm: Convert VIA board/soc bindings to json-schema dt-bindings: arm: Convert ST STi board/soc bindings to json-schema dt-bindings: arm: Convert SPEAr board/soc bindings to json-schema dt-bindings: arm: Convert CSR SiRF board/soc bindings to json-schema dt-bindings: arm: Convert QCom board/soc bindings to json-schema dt-bindings: arm: Convert TI nspire board/soc bindings to json-schema dt-bindings: arm: Convert TI davinci board/soc bindings to json-schema dt-bindings: arm: Convert Calxeda board/soc bindings to json-schema dt-bindings: arm: Convert Altera board/soc bindings to json-schema ...
2018-12-28Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-nextLinus Torvalds1-39/+0
Pull networking updates from David Miller: 1) New ipset extensions for matching on destination MAC addresses, from Stefano Brivio. 2) Add ipv4 ttl and tos, plus ipv6 flow label and hop limit offloads to nfp driver. From Stefano Brivio. 3) Implement GRO for plain UDP sockets, from Paolo Abeni. 4) Lots of work from Michał Mirosław to eliminate the VLAN_TAG_PRESENT bit so that we could support the entire vlan_tci value. 5) Rework the IPSEC policy lookups to better optimize more usecases, from Florian Westphal. 6) Infrastructure changes eliminating direct manipulation of SKB lists wherever possible, and to always use the appropriate SKB list helpers. This work is still ongoing... 7) Lots of PHY driver and state machine improvements and simplifications, from Heiner Kallweit. 8) Various TSO deferral refinements, from Eric Dumazet. 9) Add ntuple filter support to aquantia driver, from Dmitry Bogdanov. 10) Batch dropping of XDP packets in tuntap, from Jason Wang. 11) Lots of cleanups and improvements to the r8169 driver from Heiner Kallweit, including support for ->xmit_more. This driver has been getting some much needed love since he started working on it. 12) Lots of new forwarding selftests from Petr Machata. 13) Enable VXLAN learning in mlxsw driver, from Ido Schimmel. 14) Packed ring support for virtio, from Tiwei Bie. 15) Add new Aquantia AQtion USB driver, from Dmitry Bezrukov. 16) Add XDP support to dpaa2-eth driver, from Ioana Ciocoi Radulescu. 17) Implement coalescing on TCP backlog queue, from Eric Dumazet. 18) Implement carrier change in tun driver, from Nicolas Dichtel. 19) Support msg_zerocopy in UDP, from Willem de Bruijn. 20) Significantly improve garbage collection of neighbor objects when the table has many PERMANENT entries, from David Ahern. 21) Remove egdev usage from nfp and mlx5, and remove the facility completely from the tree as it no longer has any users. From Oz Shlomo and others. 22) Add a NETDEV_PRE_CHANGEADDR so that drivers can veto the change and therefore abort the operation before the commit phase (which is the NETDEV_CHANGEADDR event). From Petr Machata. 23) Add indirect call wrappers to avoid retpoline overhead, and use them in the GRO code paths. From Paolo Abeni. 24) Add support for netlink FDB get operations, from Roopa Prabhu. 25) Support bloom filter in mlxsw driver, from Nir Dotan. 26) Add SKB extension infrastructure. This consolidates the handling of the auxiliary SKB data used by IPSEC and bridge netfilter, and is designed to support the needs to MPTCP which could be integrated in the future. 27) Lots of XDP TX optimizations in mlx5 from Tariq Toukan. * git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next: (1845 commits) net: dccp: fix kernel crash on module load drivers/net: appletalk/cops: remove redundant if statement and mask bnx2x: Fix NULL pointer dereference in bnx2x_del_all_vlans() on some hw net/net_namespace: Check the return value of register_pernet_subsys() net/netlink_compat: Fix a missing check of nla_parse_nested ieee802154: lowpan_header_create check must check daddr net/mlx4_core: drop useless LIST_HEAD mlxsw: spectrum: drop useless LIST_HEAD net/mlx5e: drop useless LIST_HEAD iptunnel: Set tun_flags in the iptunnel_metadata_reply from src net/mlx5e: fix semicolon.cocci warnings staging: octeon: fix build failure with XFRM enabled net: Revert recent Spectre-v1 patches. can: af_can: Fix Spectre v1 vulnerability packet: validate address length if non-zero nfc: af_nfc: Fix Spectre v1 vulnerability phonet: af_phonet: Fix Spectre v1 vulnerability net: core: Fix Spectre v1 vulnerability net: minor cleanup in skb_ext_add() net: drop the unused helper skb_ext_get() ...
2018-12-21of: __of_detach_node() - remove node from phandle cacheFrank Rowand3-1/+37
Non-overlay dynamic devicetree node removal may leave the node in the phandle cache. Subsequent calls to of_find_node_by_phandle() will incorrectly find the stale entry. Remove the node from the cache. Add paranoia checks in of_find_node_by_phandle() as a second level of defense (do not return cached node if detached, do not add node to cache if detached). Fixes: 0b3ce78e90fc ("of: cache phandle nodes to reduce cost of of_find_node_by_phandle()") Reported-by: Michael Bringmann <mwb@linux.vnet.ibm.com> Cc: stable@vger.kernel.org # v4.17+ Signed-off-by: Frank Rowand <frank.rowand@sony.com> Signed-off-by: Rob Herring <robh@kernel.org>
2018-12-21of: of_node_get()/of_node_put() nodes held in phandle cacheFrank Rowand1-24/+46
The phandle cache contains struct device_node pointers. The refcount of the pointers was not incremented while in the cache, allowing use after free error after kfree() of the node. Add the proper increment and decrement of the use count. Fixes: 0b3ce78e90fc ("of: cache phandle nodes to reduce cost of of_find_node_by_phandle()") Cc: stable@vger.kernel.org # v4.17+ Signed-off-by: Frank Rowand <frank.rowand@sony.com> Signed-off-by: Rob Herring <robh@kernel.org>
2018-12-13Merge branch 'yaml-bindings-for-v4.21' into dt/nextRob Herring2-3/+10
2018-12-05of: Use of_node_name_eq for node name comparisonsRob Herring5-14/+13
Convert string compares of DT node names to use of_node_name_eq helper instead. This removes direct access to the node name pointer. Cc: Frank Rowand <frowand.list@gmail.com> Cc: Pantelis Antoniou <pantelis.antoniou@konsulko.com> Cc: devicetree@vger.kernel.org Signed-off-by: Rob Herring <robh@kernel.org>
2018-12-04OF: Add a warning in case chosen node is not presentNick Kossifidis1-1/+5
On architectures that only get their bootargs through devicetree's chosen node (such as RISC-V), that node is mandatory. After a discussion with Rob [1] I'm adding a warning in case chosen node is not present, to let users know about it. [1]: https://patchwork.ozlabs.org/patch/984224/#2016136 Signed-off-by: Nick Kossifidis <mick@ics.forth.gr> Reviewed-by: Palmer Dabbelt <palmer@sifive.com> Signed-off-by: Rob Herring <robh@kernel.org>
2018-12-04of: net: kill of_get_nvmem_mac_address()Bartosz Golaszewski1-39/+0
We've switched all users to nvmem_get_mac_address(). Remove the now dead code. Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com> Reviewed-by: Rob Herring <robh@kernel.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-11-27of: Use device_type helpers to access the node typeRob Herring3-12/+19
Remove directly accessing device_node.type pointer and use the accessors instead. This will eventually allow removing the type pointer. Cc: Frank Rowand <frowand.list@gmail.com> Cc: devicetree@vger.kernel.org Signed-off-by: Rob Herring <robh@kernel.org>
2018-11-27of/fdt: Remove custom __early_init_dt_declare_initrd() implementationFlorian Fainelli1-5/+10
Now that ARM64 uses phys_initrd_start/phys_initrd_size, we can get rid of its custom __early_init_dt_declare_initrd() which causes a fair amount of objects rebuild when changing CONFIG_BLK_DEV_INITRD. In order to make sure ARM64 does not produce a BUG() when VM debugging is turned on though, we must avoid early calls to __va() which is what __early_init_dt_declare_initrd() does and wrap this around to avoid running that code on ARM64. Signed-off-by: Florian Fainelli <f.fainelli@gmail.com> Reviewed-by: Mike Rapoport <rppt@linux.ibm.com> Signed-off-by: Rob Herring <robh@kernel.org>
2018-11-27of/fdt: Populate phys_initrd_start/phys_initrd_size from FDTFlorian Fainelli1-0/+2
Now that we have central and global variables holding the physical address and size of the initrd, we can have early_init_dt_check_for_initrd() populate phys_initrd_start/phys_initrd_size for us. This allows us to remove a chunk of code from arch/arm/mm/init.c introduced with commit 65939301acdb ("arm: set initrd_start/initrd_end for fdt scan"). Signed-off-by: Florian Fainelli <f.fainelli@gmail.com> Reviewed-by: Mike Rapoport <rppt@linux.ibm.com> Signed-off-by: Rob Herring <robh@kernel.org>
2018-11-19of: Drop full path from full_name for PDT systemsRob Herring1-36/+14
Now that there are no more users of path_component_name for Sparc outside of the PDT code and all users of device_node.full_name are converted to use "%pOF" printf specifier, we can align Sparc with FDT and store just the base node name and unit address in full_name. This makes path_component_name redundant, so it can be removed. As full_name is used by printf specifiers, set it as early as possible. Cc: Frank Rowand <frowand.list@gmail.com> Signed-off-by: Rob Herring <robh@kernel.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-11-10Merge tag 'devicetree-fixes-for-4.20-2' of ↵Linus Torvalds2-3/+10
git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux Pull Devicetree fixes from Rob Herring: - Add validation of NUMA distance map to prevent crashes with bad map - Fix setting of dma_mask * tag 'devicetree-fixes-for-4.20-2' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux: of, numa: Validate some distance map rules of/device: Really only set bus DMA mask when appropriate
2018-11-10Merge tag 'kfree_validate_v7-for-4.20' of ↵Rob Herring8-92/+414
git://git.kernel.org/pub/scm/linux/kernel/git/frowand/linux into dt/next Pull overlay validation checks from Frank Rowand: "Add checks to (1) overlay apply process and (2) memory freeing triggered by overlay release. The checks are intended to detect possible memory leaks and invalid overlays. The checks revealed bugs in existing code. Fixed the bugs. While fixing bugs, noted other issues, which are fixed in separate patches." Signed-off-by: Rob Herring <robh@kernel.org>
2018-11-10of/pdt: Remove unused of_pdt_build_more function ptrRob Herring1-5/+0
There are no users of of_pdt_build_more since 2012, so remove it. Cc: Frank Rowand <frowand.list@gmail.com> Signed-off-by: Rob Herring <robh@kernel.org>
2018-11-09of: unittest: initialize args before calling of_*parse_*()Frank Rowand1-2/+13
Callers of of_irq_parse_one() blindly use the pointer args.np without checking whether of_irq_parse_one() had an error and thus did not set the value of args.np. Initialize args to zero so that using the format "%pOF" to show the value of args.np will show "(null)" when of_irq_parse_one() has an error. This prevents the dereference of a random value. Make the same fix for callers of of_parse_phandle_with_args() and of_parse_phandle_with_args_map(). Reported-by: Guenter Roeck <linux@roeck-us.net> Tested-by: Alan Tull <atull@kernel.org> Signed-off-by: Frank Rowand <frank.rowand@sony.com>
2018-11-09of: unittest: find overlays[] entry by name instead of indexFrank Rowand1-4/+17
One accessor of overlays[] was using a hard coded index value to find the correct array entry instead of searching for the entry containing the correct name. Tested-by: Alan Tull <atull@kernel.org> Signed-off-by: Frank Rowand <frank.rowand@sony.com>
2018-11-09of: unittest: allow base devicetree to have symbol metadataFrank Rowand1-8/+35
The overlay metadata nodes in the FDT created from testcases.dts are not handled properly. The __fixups__ and __local_fixups__ node were added to the live devicetree, but should not be. Only the first property in the /__symbols__ node was added to the live devicetree if the live devicetree already contained a /__symbols node. All of the node's properties must be added. Tested-by: Alan Tull <atull@kernel.org> Signed-off-by: Frank Rowand <frank.rowand@sony.com>
2018-11-09of: overlay: set node fields from properties when add new overlay nodeFrank Rowand2-14/+42
Overlay nodes added by add_changeset_node() do not have the node fields name, phandle, and type set. The node passed to __of_attach_node() when the add node changeset entry is processed does not contain any properties. The node's properties are located in add property changeset entries that will be processed after the add node changeset is applied. Set the node's fields in the node contained in the add node changeset entry and do not set them to incorrect values in add_changeset_node(). A visible symptom that is fixed by this patch is the names of nodes added by overlays that have an entry in /sys/bus/platform/drivers/*/ will contain the unit-address but the node-name will be <NULL>, for example, "fc4ab000.<NULL>". After applying the patch the name, in this example, for node restart@fc4ab000 is "fc4ab000.restart". Tested-by: Alan Tull <atull@kernel.org> Signed-off-by: Frank Rowand <frank.rowand@sony.com>
2018-11-09of: unittest: remove unused of_unittest_apply_overlay() argumentFrank Rowand1-4/+3
Argument unittest_nr is not used in of_unittest_apply_overlay(), remove it. Tested-by: Alan Tull <atull@kernel.org> Signed-off-by: Frank Rowand <frank.rowand@sony.com>