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2018-10-12Merge tag 'gpio-v4.19-4' of ↵Greg Kroah-Hartman
git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio Linus writes: "GPIO fix for the v4.19 series: - Fix up the interrupt parent for the irqdomains." * tag 'gpio-v4.19-4' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio: gpio: Assign gpio_irq_chip::parents to non-stack pointer
2018-10-12Merge branch 'for-linus' of ↵Greg Kroah-Hartman
git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input Dmitry writes: "Input updates for v4.19-rc7 - we added a few scheduling points into various input interfaces to ensure that large writes will not cause RCU stalls - fixed configuring PS/2 keyboards as wakeup devices on newer platforms - added a new Xbox gamepad ID." * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input: Input: uinput - add a schedule point in uinput_inject_events() Input: evdev - add a schedule point in evdev_write() Input: mousedev - add a schedule point in mousedev_write() Input: i8042 - enable keyboard wakeups by default when s2idle is used Input: xpad - add support for Xbox1 PDP Camo series gamepad
2018-10-12Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/netGreg Kroah-Hartman
David writes: "Networking 1) RXRPC receive path fixes from David Howells. 2) Re-export __skb_recv_udp(), from Jiri Kosina. 3) Fix refcounting in u32 classificer, from Al Viro. 4) Userspace netlink ABI fixes from Eugene Syromiatnikov. 5) Don't double iounmap on rmmod in ena driver, from Arthur Kiyanovski. 6) Fix devlink string attribute handling, we must pull a copy into a kernel buffer if the lifetime extends past the netlink request. From Moshe Shemesh. 7) Fix hangs in RDS, from Ka-Cheong Poon. 8) Fix recursive locking lockdep warnings in tipc, from Ying Xue. 9) Clear RX irq correctly in socionext, from Ilias Apalodimas. 10) bcm_sf2 fixes from Florian Fainelli." * git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (38 commits) net: dsa: bcm_sf2: Call setup during switch resume net: dsa: bcm_sf2: Fix unbind ordering net: phy: sfp: remove sfp_mutex's definition r8169: set RX_MULTI_EN bit in RxConfig for 8168F-family chips net: socionext: clear rx irq correctly net/mlx4_core: Fix warnings during boot on driverinit param set failures tipc: eliminate possible recursive locking detected by LOCKDEP selftests: udpgso_bench.sh explicitly requires bash selftests: rtnetlink.sh explicitly requires bash. qmi_wwan: Added support for Gemalto's Cinterion ALASxx WWAN interface tipc: queue socket protocol error messages into socket receive buffer tipc: set link tolerance correctly in broadcast link net: ipv4: don't let PMTU updates increase route MTU net: ipv4: update fnhe_pmtu when first hop's MTU changes net/ipv6: stop leaking percpu memory in fib6 info rds: RDS (tcp) hangs on sendto() to unresponding address net: make skb_partial_csum_set() more robust against overflows devlink: Add helper function for safely copy string param devlink: Fix param cmode driverinit for string type devlink: Fix param set handling for string type ...
2018-10-11leds: core: Introduce LED pattern triggerBaolin Wang
This patch adds a new LED trigger that LED device can configure to employ software or hardware pattern engine. Consumers can write 'pattern' file to enable the software pattern which alters the brightness for the specified duration with one software timer. Moreover consumers can write 'hw_pattern' file to enable the hardware pattern for some LED controllers which can autonomously control brightness over time, according to some preprogrammed hardware patterns. Signed-off-by: Raphael Teysseyre <rteysseyre@gmail.com> Signed-off-by: Baolin Wang <baolin.wang@linaro.org> Signed-off-by: Jacek Anaszewski <jacek.anaszewski@gmail.com>
2018-10-11Merge branch 'for-4.19-fixes' of ↵Greg Kroah-Hartman
git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup Tejun writes: "cgroup fixes for v4.19-rc7 One cgroup2 threaded mode fix for v4.19-rc7. While threaded mode isn't used widely (yet) and the bug requires somewhat convoluted sequence of operations, it causes a userland visible malfunction - EINVAL on a valid attempt to enable threaded mode. This pull request contains the fix" * 'for-4.19-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup: cgroup: Fix dom_cgrp propagation when enabling threaded mode
2018-10-11block: describe difference between flags IO_STAT and STATSKonstantin Khlebnikov
This adds reasonable comments, but they definitely needs better names. Signed-off-by: Konstantin Khlebnikov <khlebnikov@yandex-team.ru> Signed-off-by: Jens Axboe <axboe@kernel.dk>
2018-10-11spi: pxa2xx: Add devicetree supportLubomir Rintel
The MMP2 platform, that uses device tree, has this controller. Let's add devicetree alongside platform & PCI. Signed-off-by: Lubomir Rintel <lkundrak@v3.sk> Signed-off-by: Mark Brown <broonie@kernel.org>
2018-10-11spi: pxa2xx: Use an enum for typeLubomir Rintel
That seems to be the correct type. Signed-off-by: Lubomir Rintel <lkundrak@v3.sk> Signed-off-by: Mark Brown <broonie@kernel.org>
2018-10-11Merge tag 'qcom-geni-immutable-for-mark-brown' of ↵Mark Brown
git://git.kernel.org/pub/scm/linux/kernel/git/agross/linux into spi-4.20 Immutable branch for QCOM Geni patches
2018-10-10net: ipv4: update fnhe_pmtu when first hop's MTU changesSabrina Dubroca
Since commit 5aad1de5ea2c ("ipv4: use separate genid for next hop exceptions"), exceptions get deprecated separately from cached routes. In particular, administrative changes don't clear PMTU anymore. As Stefano described in commit e9fa1495d738 ("ipv6: Reflect MTU changes on PMTU of exceptions for MTU-less routes"), the PMTU discovered before the local MTU change can become stale: - if the local MTU is now lower than the PMTU, that PMTU is now incorrect - if the local MTU was the lowest value in the path, and is increased, we might discover a higher PMTU Similarly to what commit e9fa1495d738 did for IPv6, update PMTU in those cases. If the exception was locked, the discovered PMTU was smaller than the minimal accepted PMTU. In that case, if the new local MTU is smaller than the current PMTU, let PMTU discovery figure out if locking of the exception is still needed. To do this, we need to know the old link MTU in the NETDEV_CHANGEMTU notifier. By the time the notifier is called, dev->mtu has been changed. This patch adds the old MTU as additional information in the notifier structure, and a new call_netdevice_notifiers_u32() function. Fixes: 5aad1de5ea2c ("ipv4: use separate genid for next hop exceptions") Signed-off-by: Sabrina Dubroca <sd@queasysnail.net> Reviewed-by: Stefano Brivio <sbrivio@redhat.com> Reviewed-by: David Ahern <dsahern@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-10-10hwmon: (core) Add hwmon_in_enable attributeNicolin Chen
According to hwmon ABI, in%d_enable is a sysfs interface that allows user space to enable and disable the input sensor. So this patch just simply adds the attribute to the list. Signed-off-by: Nicolin Chen <nicoleotsuka@gmail.com> Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2018-10-10net/mlx5: WQ, fixes for fragmented WQ buffers APITariq Toukan
mlx5e netdevice used to calculate fragment edges by a call to mlx5_wq_cyc_get_frag_size(). This calculation did not give the correct indication for queues smaller than a PAGE_SIZE, (broken by default on PowerPC, where PAGE_SIZE == 64KB). Here it is replaced by the correct new calls/API. Since (TX/RX) Work Queues buffers are fragmented, here we introduce changes to the API in core driver, so that it gets a stride index and returns the index of last stride on same fragment, and an additional wrapping function that returns the number of physically contiguous strides that can be written contiguously to the work queue. This obsoletes the following API functions, and their buggy usage in EN driver: * mlx5_wq_cyc_get_frag_size() * mlx5_wq_cyc_ctr2fragix() The new API improves modularity and hides the details of such calculation for mlx5e netdevice and mlx5_ib rdma drivers. New calculation is also more efficient, and improves performance as follows: Packet rate test: pktgen, UDP / IPv4, 64byte, single ring, 8K ring size. Before: 16,477,619 pps After: 17,085,793 pps 3.7% improvement Fixes: 3a2f70331226 ("net/mlx5: Use order-0 allocations for all WQ types") Signed-off-by: Tariq Toukan <tariqt@mellanox.com> Reviewed-by: Eran Ben Elisha <eranbe@mellanox.com> Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
2018-10-10spi: Add driver_override SPI device attributeTrent Piepho
This attribute works the same was as the identically named attribute for PCI, AMBA, and platform devices. For reference, see: commit 3cf385713460 ("ARM: 8256/1: driver coamba: add device binding path 'driver_override'") commit 3d713e0e382e ("driver core: platform: add device binding path 'driver_override'") commit 782a985d7af2 ("PCI: Introduce new device binding path using pci_dev.driver_override") If the name of a driver is written to this attribute, then the device will bind to the named driver and only the named driver. The device will bind to the driver even if the driver does not list the device in its id table. This behavior is different than the driver's bind attribute, which only allows binding to devices that are listed as supported by the driver. It can be used to bind a generic driver, like spidev, to a device. Signed-off-by: Trent Piepho <tpiepho@impinj.com> Reviewed-by: Jan Kundrát <jan.kundrat@cesnet.cz> Tested-by: Jan Kundrát <jan.kundrat@cesnet.cz> Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be> Signed-off-by: Mark Brown <broonie@kernel.org>
2018-10-10gpio: Assign gpio_irq_chip::parents to non-stack pointerStephen Boyd
gpiochip_set_cascaded_irqchip() is passed 'parent_irq' as an argument and then the address of that argument is assigned to the gpio chips gpio_irq_chip 'parents' pointer shortly thereafter. This can't ever work, because we've just assigned some stack address to a pointer that we plan to dereference later in gpiochip_irq_map(). I ran into this issue with the KASAN report below when gpiochip_irq_map() tried to setup the parent irq with a total junk pointer for the 'parents' array. BUG: KASAN: stack-out-of-bounds in gpiochip_irq_map+0x228/0x248 Read of size 4 at addr ffffffc0dde472e0 by task swapper/0/1 CPU: 7 PID: 1 Comm: swapper/0 Not tainted 4.14.72 #34 Call trace: [<ffffff9008093638>] dump_backtrace+0x0/0x718 [<ffffff9008093da4>] show_stack+0x20/0x2c [<ffffff90096b9224>] __dump_stack+0x20/0x28 [<ffffff90096b91c8>] dump_stack+0x80/0xbc [<ffffff900845a350>] print_address_description+0x70/0x238 [<ffffff900845a8e4>] kasan_report+0x1cc/0x260 [<ffffff900845aa14>] __asan_report_load4_noabort+0x2c/0x38 [<ffffff900897e098>] gpiochip_irq_map+0x228/0x248 [<ffffff900820cc08>] irq_domain_associate+0x114/0x2ec [<ffffff900820d13c>] irq_create_mapping+0x120/0x234 [<ffffff900820da78>] irq_create_fwspec_mapping+0x4c8/0x88c [<ffffff900820e2d8>] irq_create_of_mapping+0x180/0x210 [<ffffff900917114c>] of_irq_get+0x138/0x198 [<ffffff9008dc70ac>] spi_drv_probe+0x94/0x178 [<ffffff9008ca5168>] driver_probe_device+0x51c/0x824 [<ffffff9008ca6538>] __device_attach_driver+0x148/0x20c [<ffffff9008ca14cc>] bus_for_each_drv+0x120/0x188 [<ffffff9008ca570c>] __device_attach+0x19c/0x2dc [<ffffff9008ca586c>] device_initial_probe+0x20/0x2c [<ffffff9008ca18bc>] bus_probe_device+0x80/0x154 [<ffffff9008c9b9b4>] device_add+0x9b8/0xbdc [<ffffff9008dc7640>] spi_add_device+0x1b8/0x380 [<ffffff9008dcbaf0>] spi_register_controller+0x111c/0x1378 [<ffffff9008dd6b10>] spi_geni_probe+0x4dc/0x6f8 [<ffffff9008cab058>] platform_drv_probe+0xdc/0x130 [<ffffff9008ca5168>] driver_probe_device+0x51c/0x824 [<ffffff9008ca59cc>] __driver_attach+0x100/0x194 [<ffffff9008ca0ea8>] bus_for_each_dev+0x104/0x16c [<ffffff9008ca58c0>] driver_attach+0x48/0x54 [<ffffff9008ca1edc>] bus_add_driver+0x274/0x498 [<ffffff9008ca8448>] driver_register+0x1ac/0x230 [<ffffff9008caaf6c>] __platform_driver_register+0xcc/0xdc [<ffffff9009c4b33c>] spi_geni_driver_init+0x1c/0x24 [<ffffff9008084cb8>] do_one_initcall+0x240/0x3dc [<ffffff9009c017d0>] kernel_init_freeable+0x378/0x468 [<ffffff90096e8240>] kernel_init+0x14/0x110 [<ffffff9008086fcc>] ret_from_fork+0x10/0x18 The buggy address belongs to the page: page:ffffffbf037791c0 count:0 mapcount:0 mapping: (null) index:0x0 flags: 0x4000000000000000() raw: 4000000000000000 0000000000000000 0000000000000000 00000000ffffffff raw: ffffffbf037791e0 ffffffbf037791e0 0000000000000000 0000000000000000 page dumped because: kasan: bad access detected Memory state around the buggy address: ffffffc0dde47180: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ffffffc0dde47200: f1 f1 f1 f1 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f2 f2 >ffffffc0dde47280: f2 f2 00 00 00 00 00 00 00 00 00 00 f3 f3 f3 f3 ^ ffffffc0dde47300: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ffffffc0dde47380: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 Let's leave around one unsigned int in the gpio_irq_chip struct for the single parent irq case and repoint the 'parents' array at it. This way code is left mostly intact to setup parents and we waste an extra few bytes per structure of which there should be only a handful in a system. Cc: Evan Green <evgreen@chromium.org> Cc: Thierry Reding <treding@nvidia.com> Cc: Grygorii Strashko <grygorii.strashko@ti.com> Fixes: e0d897289813 ("gpio: Implement tighter IRQ chip integration") Signed-off-by: Stephen Boyd <swboyd@chromium.org> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2018-10-10gpiolib: Add init_valid_mask exported functionRicardo Ribalda Delgado
Add a function that allows initializing the valid_mask from gpiochip_add_data. This prevents race conditions during gpiochip initialization. If the function is not exported, then the old behaviour is respected, this is, set all gpios as valid. Signed-off-by: Ricardo Ribalda Delgado <ricardo.ribalda@gmail.com> Tested-by: Jeffrey Hugo <jhugo@codeaurora.org> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2018-10-09lightnvm: pblk: fix mapping issue on failed writesHans Holmberg
On 1.2-devices, the mapping-out of remaning sectors in the failed-write's block can result in an infinite loop, stalling the write pipeline, fix this. Fixes: 6a3abf5beef6 ("lightnvm: pblk: rework write error recovery path") Signed-off-by: Hans Holmberg <hans.holmberg@cnexlabs.com> Signed-off-by: Matias Bjørling <mb@lightnvm.io> Signed-off-by: Jens Axboe <axboe@kernel.dk>
2018-10-09lightnvm: move ppa transformations to coreJavier González
Continuing the effort of moving 1.2 and 2.0 specific code to core, move 64_to_32 and 32_to_64 ppa helpers from pblk to core. Signed-off-by: Javier González <javier@cnexlabs.com> Signed-off-by: Matias Bjørling <mb@lightnvm.io> Signed-off-by: Jens Axboe <axboe@kernel.dk>
2018-10-09lightnvm: introduce nvm_rq_to_ppa_listHans Holmberg
There is a number of places in the lightnvm subsystem where the user iterates over the ppa list. Before iterating, the user must know if it is a single or multiple LBAs due to vector commands using either the nvm_rq ->ppa_addr or ->ppa_list fields on command submission, which leads to open-coding the if/else statement. Instead of having multiple if/else's, move it into a function that can be called by its users. A nice side effect of this cleanup is that this patch fixes up a bunch of cases where we don't consider the single-ppa case in pblk. Signed-off-by: Hans Holmberg <hans.holmberg@cnexlabs.com> Signed-off-by: Matias Bjørling <mb@lightnvm.io> Signed-off-by: Jens Axboe <axboe@kernel.dk>
2018-10-09lightnvm: pblk: add helpers for chunk addressesJavier González
Implement helpers to go from ppas to a chunk within a line and an address within a chunk. These helpers will be used on the patches adding trace support in pblk, which will be sent in this window. Signed-off-by: Javier González <javier@cnexlabs.com> Signed-off-by: Matias Bjørling <mb@lightnvm.io> Signed-off-by: Jens Axboe <axboe@kernel.dk>
2018-10-09lightnvm: move bad block and chunk state logic to coreMatias Bjørling
pblk implements two data paths for recovery line state. One for 1.2 and another for 2.0, instead of having pblk implement these, combine them in the core to reduce complexity and make available to other targets. The new interface will adhere to the 2.0 chunk definition, including managing open chunks with an active write pointer. To provide this interface, a 1.2 device recovers the state of the chunks by manually detecting if a chunk is either free/open/close/offline, and if open, scanning the flash pages sequentially to find the next writeable page. This process takes on average ~10 seconds on a device with 64 dies, 1024 blocks and 60us read access time. The process can be parallelized but is left out for maintenance simplicity, as the 1.2 specification is deprecated. For 2.0 devices, the logic is maintained internally in the drive and retrieved through the 2.0 interface. Signed-off-by: Matias Bjørling <mb@lightnvm.io> Signed-off-by: Jens Axboe <axboe@kernel.dk>
2018-10-09lightnvm: move device L2P detection to coreMatias Bjørling
A 1.2 device is able to manage the logical to physical mapping table internally or leave it to the host. A target only supports one of those approaches, and therefore must check on initialization. Move this check to core to avoid each target implement the check. Signed-off-by: Matias Bjørling <mb@lightnvm.io> Signed-off-by: Jens Axboe <axboe@kernel.dk>
2018-10-09lightnvm: combine 1.2 and 2.0 command flagsMatias Bjørling
Add nvm_set_flags helper to enable core to appropriately set the command flags for read/write/erase depending on which version a drive supports. The flags arguments can be distilled into the access hint, scrambling, and program/erase suspend. Replace the access hint with a "is_seq" parameter. The rest of the flags are dependent on the command opcode, which is trivial to detect and set. Signed-off-by: Matias Bjørling <mb@lightnvm.io> Reviewed-by: Javier González <javier@cnexlabs.com> Signed-off-by: Jens Axboe <axboe@kernel.dk>
2018-10-09dma-mapping: translate __GFP_NOFAIL to DMA_ATTR_NO_WARNChristoph Hellwig
This allows all dma_map_ops instances to entirely rely on DMA_ATTR_NO_WARN going forward. Signed-off-by: Christoph Hellwig <hch@lst.de> Acked-by: Robin Murphy <robin.murphy@arm.com>
2018-10-09compiler: introduce __no_sanitize_address_or_inlineVasily Gorbik
Due to conflict between kasan instrumentation and inlining https://gcc.gnu.org/bugzilla/show_bug.cgi?id=67368 functions which are defined as inline could not be called from functions defined with __no_sanitize_address. Introduce __no_sanitize_address_or_inline which would expand to __no_sanitize_address when the kernel is built with kasan support and to inline otherwise. This helps to avoid disabling kasan instrumentation for entire files. Reviewed-by: Martin Schwidefsky <schwidefsky@de.ibm.com> Signed-off-by: Vasily Gorbik <gor@linux.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2018-10-09init: add arch_call_rest_init to allow stack switchingMartin Schwidefsky
With CONFIG_VMAP_STACK=y the kernel stack of all tasks should be allocated in the vmalloc space. The initial stack used for all the early init code is in the init_thread_union. To be able to switch from this early stack to a properly allocated stack from vmalloc the architecture needs a switch-over point. Introduce the arch_call_rest_init() function with a weak definition in init/main.c with the only purpose to call rest_init() from the end of start_kernel(). The architecture override can then do the necessary magic to switch to the new vmalloc'ed stack. Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2018-10-09locking/lockdep: Make class->ops a percpu counter and move it under ↵Waiman Long
CONFIG_DEBUG_LOCKDEP=y A sizable portion of the CPU cycles spent on the __lock_acquire() is used up by the atomic increment of the class->ops stat counter. By taking it out from the lock_class structure and changing it to a per-cpu per-lock-class counter, we can reduce the amount of cacheline contention on the class structure when multiple CPUs are trying to acquire locks of the same class simultaneously. To limit the increase in memory consumption because of the percpu nature of that counter, it is now put back under the CONFIG_DEBUG_LOCKDEP config option. So the memory consumption increase will only occur if CONFIG_DEBUG_LOCKDEP is defined. The lock_class structure, however, is reduced in size by 16 bytes on 64-bit archs after ops removal and a minor restructuring of the fields. This patch also fixes a bug in the increment code as the counter is of the 'unsigned long' type, but atomic_inc() was used to increment it. Signed-off-by: Waiman Long <longman@redhat.com> Acked-by: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Will Deacon <will.deacon@arm.com> Link: http://lkml.kernel.org/r/d66681f3-8781-9793-1dcf-2436a284550b@redhat.com Signed-off-by: Ingo Molnar <mingo@kernel.org>
2018-10-09mm, sched/numa: Remove remaining traces of NUMA rate-limitingSrikar Dronamraju
Remove the leftover pglist_data::numabalancing_migrate_lock and its initialization, we stopped using this lock with: efaffc5e40ae ("mm, sched/numa: Remove rate-limiting of automatic NUMA balancing migration") [ mingo: Rewrote the changelog. ] Signed-off-by: Srikar Dronamraju <srikar@linux.vnet.ibm.com> Acked-by: Mel Gorman <mgorman@techsingularity.net> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Linux-MM <linux-mm@kvack.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Rik van Riel <riel@surriel.com> Cc: Thomas Gleixner <tglx@linutronix.de> Link: http://lkml.kernel.org/r/1538824999-31230-1-git-send-email-srikar@linux.vnet.ibm.com Signed-off-by: Ingo Molnar <mingo@kernel.org>
2018-10-08mtd: spi-nor: parse SFDP Sector Map Parameter TableTudor Ambarus
Add support for the SFDP (JESD216B) Sector Map Parameter Table. This table is optional, but when available, we parse it to identify the location and size of sectors within the main data array of the flash memory device and to identify which Erase Types are supported by each sector. Signed-off-by: Tudor Ambarus <tudor.ambarus@microchip.com> Reviewed-by: Marek Vasut <marek.vasut@gmail.com> Signed-off-by: Boris Brezillon <boris.brezillon@bootlin.com>
2018-10-08mtd: spi-nor: add support to non-uniform SFDP SPI NOR flash memoriesTudor Ambarus
Based on Cyrille Pitchen's patch https://lkml.org/lkml/2017/3/22/935. This patch is a transitional patch in introducing the support of SFDP SPI memories with non-uniform erase sizes like Spansion s25fs512s. Non-uniform erase maps will be used later when initialized based on the SFDP data. Introduce the memory erase map which splits the memory array into one or many erase regions. Each erase region supports up to 4 erase types, as defined by the JEDEC JESD216B (SFDP) specification. To be backward compatible, the erase map of uniform SPI NOR flash memories is initialized so it contains only one erase region and this erase region supports only one erase command. Hence a single size is used to erase any sector/block of the memory. Besides, since the algorithm used to erase sectors on non-uniform SPI NOR flash memories is quite expensive, when possible, the erase map is tuned to come back to the uniform case. The 'erase with the best command, move forward and repeat' approach was suggested by Cristian Birsan in a brainstorm session, so: Suggested-by: Cristian Birsan <cristian.birsan@microchip.com> Signed-off-by: Tudor Ambarus <tudor.ambarus@microchip.com> Reviewed-by: Marek Vasut <marek.vasut@gmail.com> Signed-off-by: Boris Brezillon <boris.brezillon@bootlin.com>
2018-10-08mmc: omap_hsmmc: Delete platform data GPIO CD and WPLinus Walleij
The OMAP HSMMC driver has some elaborate and hairy handling for passing GPIO card detect and write protect lines from a boardfile into the driver: the machine defines a struct omap2_hsmmc_info that is copied into struct omap_hsmmc_platform_data by omap_hsmmc_pdata_init() in arch/arm/mach-omap2/hsmmc.c. However the .gpio_cd and .gpio_wp fields are not copied from omap2_hsmmc_info to omap_hsmmc_platform_data by omap_hsmmc_pdata_init() so they remain unused. The only platform defining omap2_hsmmc_info also define both to -1, unused. It turn out there are no boardfiles passing any valid GPIO lines into the OMAP HSMMC driver at all. And since we are not going to add any more OMAP2 boardfiles, we can delete this card detect and write protect handling altogether. This seems to also fix a bug: the card detect callback mmc_gpio_get_cd() in the slot GPIO core needs to be called by drivers utilizing slot GPIO. It appears the the boardfile quirks were not doing this right, so this would only get called for boardfiles, i.e. since no boardfile was using it, never. Just assign mmc_gpio_get_cd() unconditionally to omap_hsmmc_ops .get_cd() so card detects from the device tree works. AFAICT card detect with GPIO lines assigned from mmc_of_parse() are not working at the moment, but that is no regression since it probably never worked. Cc: Tony Lindgren <tony@atomide.com> Cc: linux-omap@vger.kernel.org Signed-off-by: Linus Walleij <linus.walleij@linaro.org> Acked-by: Tony Lindgren <tony@atomide.com> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2018-10-08mmc: omap_hsmmc: Kill off cover detectionLinus Walleij
Cover detection appears to be a feature protecting the SD card on mobile phones with a slide-cover, such as some Nokia phones. The idea seems to be to not allow access to the SD card when the cover is open. It is only usable with platform data from board files, but no board file in the kernel is using it, yet it takes up a sizeable chunk of code in the OMAP HSMMC driver. Since we do not add new board files for the OMAPs any target that need this should anyway reimplement it properly using the device tree, so delete this legacy code. The driver is marked as orphan in MAINTAINERS by the way. Cc: Tony Lindgren <tony@atomide.com> Cc: linux-omap@vger.kernel.org Signed-off-by: Linus Walleij <linus.walleij@linaro.org> Acked-by: Tony Lindgren <tony@atomide.com> Acked-by: Kishon Vijay Abraham I <kishon@ti.com> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2018-10-08mmc: sdhci: pxav3: Delete GPIO handlingLinus Walleij
The platform data for the PXAv3 driver allows passing a card detect GPIO, but this code is not used in the kernel. In order to not encourage the use of the old global GPIO numberspace we need to remove this. Card detect (and write protect) GPIO can easily be added into the driver using machine descriptor tables instead, and the descriptor-based (gpiod) variants of the slot GPIO APIs. Cc: Jisheng Zhang <jszhang@marvell.com> Cc: Adrian Hunter <adrian.hunter@intel.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org> Reviewed-by: Jisheng Zhang <Jisheng.Zhang@synaptics.com> Acked-by: Adrian Hunter <adrian.hunter@intel.com> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2018-10-08mmc: mmci: Drop support for pdata GPIO numbersLinus Walleij
All the machines using the MMCI are passing GPIOs for the card detect and write protect using the device tree or descriptor table (one single case, Integrator/AP IM-PD1). Drop support for passing global GPIO numbers through platform data, noone is using it. Signed-off-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2018-10-08mmc: core: add helper to see if a host is doing a retuneNiklas Söderlund
Add a helper to allow host drivers checking if a retune is in progress. Signed-off-by: Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se> Reviewed-by: Wolfram Sang <wsa+renesas@sang-engineering.com> Tested-by: Wolfram Sang <wsa+renesas@sang-engineering.com> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2018-10-08dma-debug: Check for drivers mapping invalid addresses in dma_map_single()Stephen Boyd
I recently debugged a DMA mapping oops where a driver was trying to map a buffer returned from request_firmware() with dma_map_single(). Memory returned from request_firmware() is mapped into the vmalloc region and this isn't a valid region to map with dma_map_single() per the DMA documentation's "What memory is DMA'able?" section. Unfortunately, we don't really check that in the DMA debugging code, so enabling DMA debugging doesn't help catch this problem. Let's add a new DMA debug function to check for a vmalloc address or an invalid virtual address and print a warning if this happens. This makes it a little easier to debug these sorts of problems, instead of seeing odd behavior or crashes when drivers attempt to map the vmalloc space for DMA. Cc: Marek Szyprowski <m.szyprowski@samsung.com> Reviewed-by: Robin Murphy <robin.murphy@arm.com> Signed-off-by: Stephen Boyd <swboyd@chromium.org> Signed-off-by: Christoph Hellwig <hch@lst.de>
2018-10-07Merge tag 'char-misc-4.19-rc7' of ↵Greg Kroah-Hartman
git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc I wrote: "Char/Misc fixes for 4.19-rc7 Here are 8 small fixes for some char/misc driver issues Included here are: - fpga driver fixes - thunderbolt bugfixes - firmware core revert/fix - hv core fix - hv tool fix All of these have been in linux-next with no reported issues." * tag 'char-misc-4.19-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc: thunderbolt: Initialize after IOMMUs thunderbolt: Do not handle ICM events after domain is stopped firmware: Always initialize the fw_priv list object docs: fpga: document fpga manager flags fpga: bridge: fix obvious function documentation error tools: hv: fcopy: set 'error' in case an unknown operation was requested fpga: do not access region struct after fpga_region_unregister Drivers: hv: vmbus: Use get/put_cpu() in vmbus_connect()
2018-10-07Merge tag 'tty-4.19-rc7' of ↵Greg Kroah-Hartman
git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty I wrote: "Serial driver fixes for 4.19-rc7 Here are 3 small serial driver fixes for 4.19-rc7 - 2 sh-sci bugfixes for reported issues - a revert of the PM handling for the 8250_dw code All of these have been in linux-next with no reported issues." * tag 'tty-4.19-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty: Revert "serial: sh-sci: Allow for compressed SCIF address" Revert "serial: sh-sci: Remove SCIx_RZ_SCIFA_REGTYPE" Revert "serial: 8250_dw: Fix runtime PM handling"
2018-10-06Merge branch 'core/core' into x86/build, to prevent conflictsIngo Molnar
Signed-off-by: Ingo Molnar <mingo@kernel.org>
2018-10-06Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/netGreg Kroah-Hartman
Dave writes: "Networking fixes: 1) Fix truncation of 32-bit right shift in bpf, from Jann Horn. 2) Fix memory leak in wireless wext compat, from Stefan Seyfried. 3) Use after free in cfg80211's reg_process_hint(), from Yu Zhao. 4) Need to cancel pending work when unbinding in smsc75xx otherwise we oops, also from Yu Zhao. 5) Don't allow enslaving a team device to itself, from Ido Schimmel. 6) Fix backwards compat with older userspace for rtnetlink FDB dumps. From Mauricio Faria. 7) Add validation of tc policy netlink attributes, from David Ahern. 8) Fix RCU locking in rawv6_send_hdrinc(), from Wei Wang." * git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (26 commits) net: mvpp2: Extract the correct ethtype from the skb for tx csum offload ipv6: take rcu lock in rawv6_send_hdrinc() net: sched: Add policy validation for tc attributes rtnetlink: fix rtnl_fdb_dump() for ndmsg header yam: fix a missing-check bug net: bpfilter: Fix type cast and pointer warnings net: cxgb3_main: fix a missing-check bug bpf: 32-bit RSH verification must truncate input before the ALU op net: phy: phylink: fix SFP interface autodetection be2net: don't flip hw_features when VXLANs are added/deleted net/packet: fix packet drop as of virtio gso net: dsa: b53: Keep CPU port as tagged in all VLANs openvswitch: load NAT helper bnxt_en: get the reduced max_irqs by the ones used by RDMA bnxt_en: free hwrm resources, if driver probe fails. bnxt_en: Fix enables field in HWRM_QUEUE_COS2BW_CFG request bnxt_en: Fix VNIC reservations on the PF. team: Forbid enslaving team device to itself net/usb: cancel pending work when unbinding smsc75xx mlxsw: spectrum: Delete RIF when VLAN device is removed ...
2018-10-05Merge branch 'akpm'Greg Kroah-Hartman
* akpm: mm: madvise(MADV_DODUMP): allow hugetlbfs pages ocfs2: fix locking for res->tracking and dlm->tracking_list mm/vmscan.c: fix int overflow in callers of do_shrink_slab() mm/vmstat.c: skip NR_TLB_REMOTE_FLUSH* properly mm/vmstat.c: fix outdated vmstat_text proc: restrict kernel stack dumps to root mm/hugetlb: add mmap() encodings for 32MB and 512MB page sizes mm/migrate.c: split only transparent huge pages when allocation fails ipc/shm.c: use ERR_CAST() for shm_lock() error return mm/gup_benchmark: fix unsigned comparison to zero in __gup_benchmark_ioctl mm, thp: fix mlocking THP page with migration enabled ocfs2: fix crash in ocfs2_duplicate_clusters_by_page() hugetlb: take PMD sharing into account when flushing tlb/caches mm: migration: fix migration of huge PMD shared pages
2018-10-05mm: migration: fix migration of huge PMD shared pagesMike Kravetz
The page migration code employs try_to_unmap() to try and unmap the source page. This is accomplished by using rmap_walk to find all vmas where the page is mapped. This search stops when page mapcount is zero. For shared PMD huge pages, the page map count is always 1 no matter the number of mappings. Shared mappings are tracked via the reference count of the PMD page. Therefore, try_to_unmap stops prematurely and does not completely unmap all mappings of the source page. This problem can result is data corruption as writes to the original source page can happen after contents of the page are copied to the target page. Hence, data is lost. This problem was originally seen as DB corruption of shared global areas after a huge page was soft offlined due to ECC memory errors. DB developers noticed they could reproduce the issue by (hotplug) offlining memory used to back huge pages. A simple testcase can reproduce the problem by creating a shared PMD mapping (note that this must be at least PUD_SIZE in size and PUD_SIZE aligned (1GB on x86)), and using migrate_pages() to migrate process pages between nodes while continually writing to the huge pages being migrated. To fix, have the try_to_unmap_one routine check for huge PMD sharing by calling huge_pmd_unshare for hugetlbfs huge pages. If it is a shared mapping it will be 'unshared' which removes the page table entry and drops the reference on the PMD page. After this, flush caches and TLB. mmu notifiers are called before locking page tables, but we can not be sure of PMD sharing until page tables are locked. Therefore, check for the possibility of PMD sharing before locking so that notifiers can prepare for the worst possible case. Link: http://lkml.kernel.org/r/20180823205917.16297-2-mike.kravetz@oracle.com [mike.kravetz@oracle.com: make _range_in_vma() a static inline] Link: http://lkml.kernel.org/r/6063f215-a5c8-2f0c-465a-2c515ddc952d@oracle.com Fixes: 39dde65c9940 ("shared page table for hugetlb page") Signed-off-by: Mike Kravetz <mike.kravetz@oracle.com> Acked-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com> Reviewed-by: Naoya Horiguchi <n-horiguchi@ah.jp.nec.com> Acked-by: Michal Hocko <mhocko@suse.com> Cc: Vlastimil Babka <vbabka@suse.cz> Cc: Davidlohr Bueso <dave@stgolabs.net> Cc: Jerome Glisse <jglisse@redhat.com> Cc: Mike Kravetz <mike.kravetz@oracle.com> Cc: <stable@vger.kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-10-05Merge branch 'sched-urgent-for-linus' of ↵Greg Kroah-Hartman
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Ingo writes: "scheduler fixes: These fixes address a rather involved performance regression between v4.17->v4.19 in the sched/numa auto-balancing code. Since distros really need this fix we accelerated it to sched/urgent for a faster upstream merge. NUMA scheduling and balancing performance is now largely back to v4.17 levels, without reintroducing the NUMA placement bugs that v4.18 and v4.19 fixed. Many thanks to Srikar Dronamraju, Mel Gorman and Jirka Hladky, for reporting, testing, re-testing and solving this rather complex set of bugs." * 'sched-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: sched/numa: Migrate pages to local nodes quicker early in the lifetime of a task mm, sched/numa: Remove rate-limiting of automatic NUMA balancing migration sched/numa: Avoid task migration for small NUMA improvement mm/migrate: Use spin_trylock() while resetting rate limit sched/numa: Limit the conditions where scan period is reset sched/numa: Reset scan rate whenever task moves across nodes sched/numa: Pass destination CPU as a parameter to migrate_task_rq sched/numa: Stop multiple tasks from moving to the CPU at the same time
2018-10-05Merge branch 'x86/core' into x86/build, to avoid conflictsIngo Molnar
Signed-off-by: Ingo Molnar <mingo@kernel.org>
2018-10-04net/packet: fix packet drop as of virtio gsoJianfeng Tan
When we use raw socket as the vhost backend, a packet from virito with gso offloading information, cannot be sent out in later validaton at xmit path, as we did not set correct skb->protocol which is further used for looking up the gso function. To fix this, we set this field according to virito hdr information. Fixes: e858fae2b0b8f4 ("virtio_net: use common code for virtio_net_hdr and skb GSO conversion") Signed-off-by: Jianfeng Tan <jianfeng.tan@linux.alibaba.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-10-04cgroup: Fix dom_cgrp propagation when enabling threaded modeTejun Heo
A cgroup which is already a threaded domain may be converted into a threaded cgroup if the prerequisite conditions are met. When this happens, all threaded descendant should also have their ->dom_cgrp updated to the new threaded domain cgroup. Unfortunately, this propagation was missing leading to the following failure. # cd /sys/fs/cgroup/unified # cat cgroup.subtree_control # show that no controllers are enabled # mkdir -p mycgrp/a/b/c # echo threaded > mycgrp/a/b/cgroup.type At this point, the hierarchy looks as follows: mycgrp [d] a [dt] b [t] c [inv] Now let's make node "a" threaded (and thus "mycgrp" s made "domain threaded"): # echo threaded > mycgrp/a/cgroup.type By this point, we now have a hierarchy that looks as follows: mycgrp [dt] a [t] b [t] c [inv] But, when we try to convert the node "c" from "domain invalid" to "threaded", we get ENOTSUP on the write(): # echo threaded > mycgrp/a/b/c/cgroup.type sh: echo: write error: Operation not supported This patch fixes the problem by * Moving the opencoded ->dom_cgrp save and restoration in cgroup_enable_threaded() into cgroup_{save|restore}_control() so that mulitple cgroups can be handled. * Updating all threaded descendants' ->dom_cgrp to point to the new dom_cgrp when enabling threaded mode. Signed-off-by: Tejun Heo <tj@kernel.org> Reported-and-tested-by: "Michael Kerrisk (man-pages)" <mtk.manpages@gmail.com> Reported-by: Amin Jamali <ajamali@pivotal.io> Reported-by: Joao De Almeida Pereira <jpereira@pivotal.io> Link: https://lore.kernel.org/r/CAKgNAkhHYCMn74TCNiMJ=ccLd7DcmXSbvw3CbZ1YREeG7iJM5g@mail.gmail.com Fixes: 454000adaa2a ("cgroup: introduce cgroup->dom_cgrp and threaded css_set handling") Cc: stable@vger.kernel.org # v4.14+
2018-10-04Merge tag 'ovl-fixes-4.19-rc7' of ↵Greg Kroah-Hartman
git://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/vfs Miklos writes: "overlayfs fixes for 4.19-rc7 This update fixes a couple of regressions in the stacked file update added in this cycle, as well as some older bugs uncovered by syzkaller. There's also one trivial naming change that touches other parts of the fs subsystem." * tag 'ovl-fixes-4.19-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/vfs: ovl: fix format of setxattr debug ovl: fix access beyond unterminated strings ovl: make symbol 'ovl_aops' static vfs: swap names of {do,vfs}_clone_file_range() ovl: fix freeze protection bypass in ovl_clone_file_range() ovl: fix freeze protection bypass in ovl_write_iter() ovl: fix memory leak on unlink of indexed file
2018-10-04x86/objtool: Use asm macros to work around GCC inlining bugsNadav Amit
As described in: 77b0bf55bc67: ("kbuild/Makefile: Prepare for using macros in inline assembly code to work around asm() related GCC inlining bugs") GCC's inlining heuristics are broken with common asm() patterns used in kernel code, resulting in the effective disabling of inlining. In the case of objtool the resulting borkage can be significant, since all the annotations of objtool are discarded during linkage and never inlined, yet GCC bogusly considers most functions affected by objtool annotations as 'too large'. The workaround is to set an assembly macro and call it from the inline assembly block. As a result GCC considers the inline assembly block as a single instruction. (Which it isn't, but that's the best we can get.) This increases the kernel size slightly: text data bss dec hex filename 18140829 10224724 2957312 31322865 1ddf2f1 ./vmlinux before 18140970 10225412 2957312 31323694 1ddf62e ./vmlinux after (+829) The number of static text symbols (i.e. non-inlined functions) is reduced: Before: 40321 After: 40302 (-19) [ mingo: Rewrote the changelog. ] Tested-by: Kees Cook <keescook@chromium.org> Signed-off-by: Nadav Amit <namit@vmware.com> Reviewed-by: Josh Poimboeuf <jpoimboe@redhat.com> Acked-by: Peter Zijlstra (Intel) <peterz@infradead.org> Cc: Andy Lutomirski <luto@amacapital.net> Cc: Borislav Petkov <bp@alien8.de> Cc: Brian Gerst <brgerst@gmail.com> Cc: Christopher Li <sparse@chrisli.org> Cc: Denys Vlasenko <dvlasenk@redhat.com> Cc: H. Peter Anvin <hpa@zytor.com> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: linux-sparse@vger.kernel.org Link: http://lkml.kernel.org/r/20181003213100.189959-4-namit@vmware.com Signed-off-by: Ingo Molnar <mingo@kernel.org>
2018-10-04cpuidle: menu: Fix wakeup statistics updates for polling stateRafael J. Wysocki
If the CPU exits the "polling" state due to the time limit in the loop in poll_idle(), this is not a real wakeup and it just means that the "polling" state selection was not adequate. The governor mispredicted short idle duration, but had a more suitable state been selected, the CPU might have spent more time in it. In fact, there is no reason to expect that there would have been a wakeup event earlier than the next timer in that case. Handling such cases as regular wakeups in menu_update() may cause the menu governor to make suboptimal decisions going forward, but ignoring them altogether would not be correct either, because every time menu_select() is invoked, it makes a separate new attempt to predict the idle duration taking distinct time to the closest timer event as input and the outcomes of all those attempts should be recorded. For this reason, make menu_update() always assume that if the "polling" state was exited due to the time limit, the next proper wakeup event for the CPU would be the next timer event (not including the tick). Fixes: a37b969a61c1 "cpuidle: poll_state: Add time limit to poll_idle()" Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> Acked-by: Peter Zijlstra (Intel) <peterz@infradead.org> Reviewed-by: Daniel Lezcano <daniel.lezcano@linaro.org>
2018-10-04Merge branch 'linus' into x86/core, to pick up fixesIngo Molnar
Signed-off-by: Ingo Molnar <mingo@kernel.org>
2018-10-03Merge gitolite.kernel.org:/pub/scm/linux/kernel/git/davem/netGreg Kroah-Hartman
David writes: "Networking fixes: 1) Prefix length validation in xfrm layer, from Steffen Klassert. 2) TX status reporting fix in mac80211, from Andrei Otcheretianski. 3) Fix hangs due to TX_DROP in mac80211, from Bob Copeland. 4) Fix DMA error regression in b43, from Larry Finger. 5) Add input validation to xenvif_set_hash_mapping(), from Jan Beulich. 6) SMMU unmapping fix in hns driver, from Yunsheng Lin. 7) Bluetooh crash in unpairing on SMP, from Matias Karhumaa. 8) WoL handling fixes in the phy layer, from Heiner Kallweit. 9) Fix deadlock in bonding, from Mahesh Bandewar. 10) Fill ttl inherit infor in vxlan driver, from Hangbin Liu. 11) Fix TX timeouts during netpoll, from Michael Chan. 12) RXRPC layer fixes from David Howells. 13) Another batch of ndo_poll_controller() removals to deal with excessive resource consumption during load. From Eric Dumazet. 14) Fix a specific TIPC failure secnario, from LUU Duc Canh. 15) Really disable clocks in r8169 during suspend so that low power states can actually be reached. 16) Fix SYN backlog lockdep issue in tcp and dccp, from Eric Dumazet. 17) Fix RCU locking in netpoll SKB send, which shows up in bonding, from Dave Jones. 18) Fix TX stalls in r8169, from Heiner Kallweit. 19) Fix locksup in nfp due to control message storms, from Jakub Kicinski. 20) Various rmnet bug fixes from Subash Abhinov Kasiviswanathan and Sean Tranchetti. 21) Fix use after free in ip_cmsg_recv_dstaddr(), from Eric Dumazet." * gitolite.kernel.org:/pub/scm/linux/kernel/git/davem/net: (122 commits) ixgbe: check return value of napi_complete_done() sctp: fix fall-through annotation r8169: always autoneg on resume ipv4: fix use-after-free in ip_cmsg_recv_dstaddr() net: qualcomm: rmnet: Fix incorrect allocation flag in receive path net: qualcomm: rmnet: Fix incorrect allocation flag in transmit net: qualcomm: rmnet: Skip processing loopback packets net: systemport: Fix wake-up interrupt race during resume rtnl: limit IFLA_NUM_TX_QUEUES and IFLA_NUM_RX_QUEUES to 4096 bonding: fix warning message inet: make sure to grab rcu_read_lock before using ireq->ireq_opt nfp: avoid soft lockups under control message storm declance: Fix continuation with the adapter identification message net: fec: fix rare tx timeout r8169: fix network stalls due to missing bit TXCFG_AUTO_FIFO tun: napi flags belong to tfile tun: initialize napi_mutex unconditionally tun: remove unused parameters bond: take rcu lock in netpoll_send_skb_on_dev rtnetlink: Fail dump if target netnsid is invalid ...
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