- 10 Jul, 2019 37 commits
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Vasily Gorbik authored
[ Upstream commit cbdaeaf0 ] Selecting HAVE_NOP_MCOUNT enables -mnop-mcount (if gcc supports it) and sets CC_USING_NOP_MCOUNT. Reuse __is_defined (which is suitable for testing CC_USING_* defines) to avoid conditional compilation and fix the following gcc 9 warning on s390: kernel/trace/ftrace.c:2514:1: warning: ‘ftrace_code_disable’ defined but not used [-Wunused-function] Link: http://lkml.kernel.org/r/patch.git-1a82d13f33ac.your-ad-here.call-01559732716-ext-6629@work.hours Fixes: 2f4df001 ("tracing: Add -mcount-nop option support") Signed-off-by:
Vasily Gorbik <gor@linux.ibm.com> Signed-off-by:
Steven Rostedt (VMware) <rostedt@goodmis.org> Signed-off-by:
Sasha Levin <sashal@kernel.org>
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swkhack authored
[ Upstream commit 0874bb49 ] On a 64-bit machine the value of "vma->vm_end - vma->vm_start" may be negative when using 32 bit ints and the "count >> PAGE_SHIFT"'s result will be wrong. So change the local variable and return value to unsigned long to fix the problem. Link: http://lkml.kernel.org/r/20190513023701.83056-1-swkhack@gmail.com Fixes: 0cf2f6f6 ("mm: mlock: check against vma for actual mlock() size") Signed-off-by:
swkhack <swkhack@gmail.com> Acked-by:
Michal Hocko <mhocko@suse.com> Reviewed-by:
Andrew Morton <akpm@linux-foundation.org> Signed-off-by:
Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by:
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Manuel Traut authored
[ Upstream commit c04e32e9 ] At least for ARM64 kernels compiled with the crosstoolchain from Debian/stretch or with the toolchain from kernel.org the line number is not decoded correctly by 'decode_stacktrace.sh': $ echo "[ 136.513051] f1+0x0/0xc [kcrash]" | \ CROSS_COMPILE=/opt/gcc-8.1.0-nolibc/aarch64-linux/bin/aarch64-linux- \ ./scripts/decode_stacktrace.sh /scratch/linux-arm64/vmlinux \ /scratch/linux-arm64 \ /nfs/debian/lib/modules/4.20.0-devel [ 136.513051] f1 (/linux/drivers/staging/kcrash/kcrash.c:68) kcrash If addr2line from the toolchain is used the decoded line number is correct: [ 136.513051] f1 (/linux/drivers/staging/kcrash/kcrash.c:57) kcrash Link: http://lkml.kernel.org/r/20190527083425.3763-1-manut@linutronix.deSigned-off-by:
Manuel Traut <manut@linutronix.de> Acked-by:
Konstantin Khlebnikov <khlebnikov@yandex-team.ru> Signed-off-by:
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Joel Savitz authored
[ Upstream commit d477f8c2 ] In the case that a process is constrained by taskset(1) (i.e. sched_setaffinity(2)) to a subset of available cpus, and all of those are subsequently offlined, the scheduler will set tsk->cpus_allowed to the current value of task_cs(tsk)->effective_cpus. This is done via a call to do_set_cpus_allowed() in the context of cpuset_cpus_allowed_fallback() made by the scheduler when this case is detected. This is the only call made to cpuset_cpus_allowed_fallback() in the latest mainline kernel. However, this is not sane behavior. I will demonstrate this on a system running the latest upstream kernel with the following initial configuration: # grep -i cpu /proc/$$/status Cpus_allowed: ffffffff,fffffff Cpus_allowed_list: 0-63 (Where cpus 32-63 are provided via smt.) If we limit our current shell process to cpu2 only and then offline it and reonline it: # taskset -p 4 $$ pid 2272's current affinity mask: ffffffffffffffff pid 2272's new affinity mask: 4 # echo off > /sys/devices/system/cpu/cpu2/online # dmesg | tail -3 [ 2195.866089] process 2272 (bash) no longer affine to cpu2 [ 2195.872700] IRQ 114: no longer affine to CPU2 [ 2195.879128] smpboot: CPU 2 is now offline # echo on > /sys/devices/system/cpu/cpu2/online # dmesg | tail -1 [ 2617.043572] smpboot: Booting Node 0 Processor 2 APIC 0x4 We see that our current process now has an affinity mask containing every cpu available on the system _except_ the one we originally constrained it to: # grep -i cpu /proc/$$/status Cpus_allowed: ffffffff,fffffffb Cpus_allowed_list: 0-1,3-63 This is not sane behavior, as the scheduler can now not only place the process on previously forbidden cpus, it can't even schedule it on the cpu it was originally constrained to! Other cases result in even more exotic affinity masks. Take for instance a process with an affinity mask containing only cpus provided by smt at the moment that smt is toggled, in a configuration such as the following: # taskset -p f000000000 $$ # grep -i cpu /proc/$$/status Cpus_allowed: 000000f0,00000000 Cpus_allowed_list: 36-39 A double toggle of smt results in the following behavior: # echo off > /sys/devices/system/cpu/smt/control # echo on > /sys/devices/system/cpu/smt/control # grep -i cpus /proc/$$/status Cpus_allowed: ffffff00,ffffffff Cpus_allowed_list: 0-31,40-63 This is even less sane than the previous case, as the new affinity mask excludes all smt-provided cpus with ids less than those that were previously in the affinity mask, as well as those that were actually in the mask. With this patch applied, both of these cases end in the following state: # grep -i cpu /proc/$$/status Cpus_allowed: ffffffff,ffffffff Cpus_allowed_list: 0-63 The original policy is discarded. Though not ideal, it is the simplest way to restore sanity to this fallback case without reinventing the cpuset wheel that rolls down the kernel just fine in cgroup v2. A user who wishes for the previous affinity mask to be restored in this fallback case can use that mechanism instead. This patch modifies scheduler behavior by instead resetting the mask to task_cs(tsk)->cpus_allowed by default, and cpu_possible mask in legacy mode. I tested the cases above on both modes. Note that the scheduler uses this fallback mechanism if and only if _every_ other valid avenue has been traveled, and it is the last resort before calling BUG(). Suggested-by:
Waiman Long <longman@redhat.com> Suggested-by:
Phil Auld <pauld@redhat.com> Signed-off-by:
Joel Savitz <jsavitz@redhat.com> Acked-by:
Peter Zijlstra (Intel) <peterz@infradead.org> Signed-off-by:
Tejun Heo <tj@kernel.org> Signed-off-by:
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Linus Walleij authored
[ Upstream commit a0cac264 ] The devm_gpiod_request_gpiod() call will add "-gpios" to any passed connection ID before looking it up. I do not think the reset GPIO on this platform is named "reset-gpios-gpios" but rather "reset-gpios" in the device tree, so fix this up so that we get a proper reset GPIO handle. Also drop the inclusion of the legacy GPIO header. Fixes: 0e8ce93b ("i2c: pca-platform: add devicetree awareness") Signed-off-by:
Linus Walleij <linus.walleij@linaro.org> Reviewed-by:
Chris Packham <chris.packham@alliedtelesis.co.nz> Signed-off-by:
Wolfram Sang <wsa@the-dreams.de> Signed-off-by:
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Vadim Pasternak authored
[ Upstream commit 8c2eb7b6 ] Add devm_free_irq() call to mlxreg-hotplug remove() for clean release of devices irq resource. Fix debugobjects warning triggered by rmmod It prevents of use-after-free memory, related to mlxreg_hotplug_work_handler. Issue has been reported as debugobjects warning triggered by 'rmmod mlxtreg-hotplug' flow, while running kernel with CONFIG_DEBUG_OBJECTS* options. [ 2489.623551] ODEBUG: free active (active state 0) object type: work_struct hint: mlxreg_hotplug_work_handler+0x0/0x7f0 [mlxreg_hotplug] [ 2489.637097] WARNING: CPU: 5 PID: 3924 at lib/debugobjects.c:328 debug_print_object+0xfe/0x180 [ 2489.637165] RIP: 0010:debug_print_object+0xfe/0x180 ? [ 2489.637214] Call Trace: [ 2489.637225] __debug_check_no_obj_freed+0x25e/0x320 [ 2489.637231] kfree+0x82/0x110 [ 2489.637238] release_nodes+0x33c/0x4e0 [ 2489.637242] ? devres_remove_group+0x1b0/0x1b0 [ 2489.637247] device_release_driver_internal+0x146/0x270 [ 2489.637251] driver_detach+0x73/0xe0 [ 2489.637254] bus_remove_driver+0xa1/0x170 [ 2489.637261] __x64_sys_delete_module+0x29e/0x320 [ 2489.637265] ? __ia32_sys_delete_module+0x320/0x320 [ 2489.637268] ? blkcg_exit_queue+0x20/0x20 [ 2489.637273] ? task_work_run+0x7d/0x100 [ 2489.637278] ? exit_to_usermode_loop+0x5b/0xf0 [ 2489.637281] do_syscall_64+0x73/0x160 [ 2489.637287] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 2489.637290] RIP: 0033:0x7f95c3596fd7 The difference in release flow with and with no devm_free_irq is listed below: bus: 'platform': remove driver mlxreg-hotplug mlxreg_hotplug_remove(start) -> devm_free_irq (with new code) mlxreg_hotplug_remove (end) release_nodes (start) mlxreg-hotplug: DEVRES REL devm_hwmon_release (8 bytes) device: 'hwmon3': device_unregister PM: Removing info for No Bus:hwmon3 mlxreg-hotplug: DEVRES REL devm_kzalloc_release (88 bytes) mlxreg-hotplug: DEVRES REL devm_kzalloc_release (6 bytes) mlxreg-hotplug: DEVRES REL devm_kzalloc_release (5 bytes) mlxreg-hotplug: DEVRES REL devm_kzalloc_release (5 bytes) mlxreg-hotplug: DEVRES REL devm_kzalloc_release (5 bytes) mlxreg-hotplug: DEVRES REL devm_kzalloc_release (5 bytes) mlxreg-hotplug: DEVRES REL devm_kzalloc_release (5 bytes) mlxreg-hotplug: DEVRES REL devm_kzalloc_release (5 bytes) mlxreg-hotplug: DEVRES REL devm_kzalloc_release (5 bytes) mlxreg-hotplug: DEVRES REL devm_kzalloc_release (5 bytes) mlxreg-hotplug: DEVRES REL devm_kzalloc_release (5 bytes) mlxreg-hotplug: DEVRES REL devm_kzalloc_release (5 bytes) mlxreg-hotplug: DEVRES REL devm_irq_release (16 bytes) (no new code) mlxreg-hotplug: DEVRES REL devm_kzalloc_release (1376 bytes) ------------[ cut here ]------------ (no new code): ODEBUG: free active (active state 0) object type: work_struct hint: mlxreg_hotplug_work_handler release_nodes(end) driver: 'mlxreg-hotplug': driver_release Fixes: 1f976f69 ("platform/x86: Move Mellanox platform hotplug driver to platform/mellanox") Signed-off-by:
Vadim Pasternak <vadimp@mellanox.com> Signed-off-by:
Andy Shevchenko <andriy.shevchenko@linux.intel.com> Signed-off-by:
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Vadim Pasternak authored
[ Upstream commit 160da20b ] Fix the issue found while running kernel with the option CONFIG_DEBUG_TEST_DRIVER_REMOVE. Driver 'mlx-platform' registers 'i2c_mlxcpld' device and then registers few underlying 'i2c-mux-reg' devices: priv->pdev_i2c = platform_device_register_simple("i2c_mlxcpld", nr, NULL, 0); ... for (i = 0; i < ARRAY_SIZE(mlxplat_mux_data); i++) { priv->pdev_mux[i] = platform_device_register_resndata( &mlxplat_dev->dev, "i2c-mux-reg", i, NULL, 0, &mlxplat_mux_data[i], sizeof(mlxplat_mux_data[i])); But actual parent of "i2c-mux-reg" device is priv->pdev_i2c->dev and not mlxplat_dev->dev. Patch fixes parent device parameter in a call to platform_device_register_resndata() for "i2c-mux-reg". It solves the race during initialization flow while 'i2c_mlxcpld.1' is removing after probe, while 'i2c-mux-reg.0' is still in probing flow: 'i2c_mlxcpld.1' flow: probe -> remove -> probe. 'i2c-mux-reg.0' flow: probe -> ... [ 12:621096] Registering platform device 'i2c_mlxcpld.1'. Parent at platform [ 12:621117] device: 'i2c_mlxcpld.1': device_add [ 12:621155] bus: 'platform': add device i2c_mlxcpld.1 [ 12:621384] Registering platform device 'i2c-mux-reg.0'. Parent at mlxplat [ 12:621395] device: 'i2c-mux-reg.0': device_add [ 12:621425] bus: 'platform': add device i2c-mux-reg.0 [ 12:621806] Registering platform device 'i2c-mux-reg.1'. Parent at mlxplat [ 12:621828] device: 'i2c-mux-reg.1': device_add [ 12:621892] bus: 'platform': add device i2c-mux-reg.1 [ 12:621906] bus: 'platform': add driver i2c_mlxcpld [ 12:621996] bus: 'platform': driver_probe_device: matched device i2c_mlxcpld.1 with driver i2c_mlxcpld [ 12:622003] bus: 'platform': really_probe: probing driver i2c_mlxcpld with device i2c_mlxcpld.1 [ 12:622100] i2c_mlxcpld i2c_mlxcpld.1: no default pinctrl state [ 12:622293] device: 'i2c-1': device_add [ 12:627280] bus: 'i2c': add device i2c-1 [ 12:627692] device: 'i2c-1': device_add [ 12.629639] bus: 'platform': add driver i2c-mux-reg [ 12.629718] bus: 'platform': driver_probe_device: matched device i2c-mux-reg.0 with driver i2c-mux-reg [ 12.629723] bus: 'platform': really_probe: probing driver i2c-mux-reg with device i2c-mux-reg.0 [ 12.629818] i2c-mux-reg i2c-mux-reg.0: no default pinctrl state [ 12.629981] platform i2c-mux-reg.0: Driver i2c-mux-reg requests probe deferral [ 12.629986] platform i2c-mux-reg.0: Added to deferred list [ 12.629992] bus: 'platform': driver_probe_device: matched device i2c-mux-reg.1 with driver i2c-mux-reg [ 12.629997] bus: 'platform': really_probe: probing driver i2c-mux-reg with device i2c-mux-reg.1 [ 12.630091] i2c-mux-reg i2c-mux-reg.1: no default pinctrl state [ 12.630247] platform i2c-mux-reg.1: Driver i2c-mux-reg requests probe deferral [ 12.630252] platform i2c-mux-reg.1: Added to deferred list [ 12.640892] devices_kset: Moving i2c-mux-reg.0 to end of list [ 12.640900] platform i2c-mux-reg.0: Retrying from deferred list [ 12.640911] bus: 'platform': driver_probe_device: matched device i2c-mux-reg.0 with driver i2c-mux-reg [ 12.640919] bus: 'platform': really_probe: probing driver i2c-mux-reg with device i2c-mux-reg.0 [ 12.640999] i2c-mux-reg i2c-mux-reg.0: no default pinctrl state [ 12.641177] platform i2c-mux-reg.0: Driver i2c-mux-reg requests probe deferral [ 12.641187] platform i2c-mux-reg.0: Added to deferred list [ 12.641198] devices_kset: Moving i2c-mux-reg.1 to end of list [ 12.641219] platform i2c-mux-reg.1: Retrying from deferred list [ 12.641237] bus: 'platform': driver_probe_device: matched device i2c-mux-reg.1 with driver i2c-mux-reg [ 12.641247] bus: 'platform': really_probe: probing driver i2c-mux-reg with device i2c-mux-reg.1 [ 12.641331] i2c-mux-reg i2c-mux-reg.1: no default pinctrl state [ 12.641465] platform i2c-mux-reg.1: Driver i2c-mux-reg requests probe deferral [ 12.641469] platform i2c-mux-reg.1: Added to deferred list [ 12.646427] device: 'i2c-1': device_add [ 12.646647] bus: 'i2c': add device i2c-1 [ 12.647104] device: 'i2c-1': device_add [ 12.669231] devices_kset: Moving i2c-mux-reg.0 to end of list [ 12.669240] platform i2c-mux-reg.0: Retrying from deferred list [ 12.669258] bus: 'platform': driver_probe_device: matched device i2c-mux-reg.0 with driver i2c-mux-reg [ 12.669263] bus: 'platform': really_probe: probing driver i2c-mux-reg with device i2c-mux-reg.0 [ 12.669343] i2c-mux-reg i2c-mux-reg.0: no default pinctrl state [ 12.669585] device: 'i2c-2': device_add [ 12.669795] bus: 'i2c': add device i2c-2 [ 12.670201] device: 'i2c-2': device_add [ 12.671427] i2c i2c-1: Added multiplexed i2c bus 2 [ 12.671514] device: 'i2c-3': device_add [ 12.671724] bus: 'i2c': add device i2c-3 [ 12.672136] device: 'i2c-3': device_add [ 12.673378] i2c i2c-1: Added multiplexed i2c bus 3 [ 12.673472] device: 'i2c-4': device_add [ 12.673676] bus: 'i2c': add device i2c-4 [ 12.674060] device: 'i2c-4': device_add [ 12.675861] i2c i2c-1: Added multiplexed i2c bus 4 [ 12.675941] device: 'i2c-5': device_add [ 12.676150] bus: 'i2c': add device i2c-5 [ 12.676550] device: 'i2c-5': device_add [ 12.678103] i2c i2c-1: Added multiplexed i2c bus 5 [ 12.678193] device: 'i2c-6': device_add [ 12.678395] bus: 'i2c': add device i2c-6 [ 12.678774] device: 'i2c-6': device_add [ 12.679969] i2c i2c-1: Added multiplexed i2c bus 6 [ 12.680065] device: 'i2c-7': device_add [ 12.680275] bus: 'i2c': add device i2c-7 [ 12.680913] device: 'i2c-7': device_add [ 12.682506] i2c i2c-1: Added multiplexed i2c bus 7 [ 12.682600] device: 'i2c-8': device_add [ 12.682808] bus: 'i2c': add device i2c-8 [ 12.683189] device: 'i2c-8': device_add [ 12.683907] device: 'i2c-1': device_unregister [ 12.683945] device: 'i2c-1': device_unregister [ 12.684387] device: 'i2c-1': device_create_release [ 12.684536] bus: 'i2c': remove device i2c-1 [ 12.686019] i2c i2c-8: Failed to create compatibility class link [ 12.686086] ------------[ cut here ]------------ [ 12.686087] can't create symlink to mux device [ 12.686224] Workqueue: events deferred_probe_work_func [ 12.686135] WARNING: CPU: 7 PID: 436 at drivers/i2c/i2c-mux.c:416 i2c_mux_add_adapter+0x729/0x7d0 [i2c_mux] [ 12.686232] RIP: 0010:i2c_mux_add_adapter+0x729/0x7d0 [i2c_mux] [ 0x190/0x190 [i2c_mux] [ 12.686300] ? i2c_mux_alloc+0xac/0x110 [i2c_mux] [ 12.686306] ? i2c_mux_reg_set+0x200/0x200 [i2c_mux_reg] [ 12.686313] i2c_mux_reg_probe+0x22c/0x731 [i2c_mux_reg] [ 12.686322] ? i2c_mux_reg_deselect+0x60/0x60 [i2c_mux_reg] [ 12.686346] platform_drv_probe+0xa8/0x110 [ 12.686351] really_probe+0x185/0x720 [ 12.686358] driver_probe_device+0xdf/0x1f0 ... [ 12.686522] i2c i2c-1: Added multiplexed i2c bus 8 [ 12.686621] device: 'i2c-9': device_add [ 12.686626] kobject_add_internal failed for i2c-9 (error: -2 parent: i2c-1) [ 12.694729] i2c-core: adapter 'i2c-1-mux (chan_id 8)': can't register device (-2) [ 12.705726] i2c i2c-1: failed to add mux-adapter 8 as bus 9 (error=-2) [ 12.714494] device: 'i2c-8': device_unregister [ 12.714537] device: 'i2c-8': device_unregister Fixes: 6613d18e ("platform/x86: mlx-platform: Move module from arch/x86") Signed-off-by:
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Mathew King authored
[ Upstream commit cb1921b1 ] When a switch event, such as tablet mode/laptop mode or docked/undocked, wakes a device make sure that the value of the swich is reported. Without when a device is put in tablet mode from laptop mode when it is suspended or vice versa the device will wake up but mode will be incorrect. Tested by suspending a device in laptop mode and putting it in tablet mode, the device resumes and is in tablet mode. When suspending the device in tablet mode and putting it in laptop mode the device resumes and is in laptop mode. Signed-off-by:
Mathew King <mathewk@chromium.org> Reviewed-by:
Jett Rink <jettrink@chromium.org> Reviewed-by:
Mario Limonciello <mario.limonciello@dell.com> Signed-off-by:
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Hans de Goede authored
[ Upstream commit 401fee81 ] Commit 78f3ac76 ("platform/x86: asus-wmi: Tell the EC the OS will handle the display off hotkey") causes the backlight to be permanently off on various EeePC laptop models using the eeepc-wmi driver (Asus EeePC 1015BX, Asus EeePC 1025C). The asus_wmi_set_devstate(ASUS_WMI_DEVID_BACKLIGHT, 2, NULL) call added by that commit is made conditional in this commit and only enabled in the quirk_entry structs in the asus-nb-wmi driver fixing the broken display / backlight on various EeePC laptop models. Cc: João Paulo Rechi Vita <jprvita@endlessm.com> Fixes: 78f3ac76 ("platform/x86: asus-wmi: Tell the EC the OS will handle the display off hotkey") Signed-off-by:
Hans de Goede <hdegoede@redhat.com> Signed-off-by:
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Hans de Goede authored
[ Upstream commit 652b8b08 ] GPD has done it again, make a nice device (good), use way too generic DMI strings (bad) and use a portrait screen rotated 90 degrees (ugly). Because of the too generic DMI strings this entry is also doing bios-date matching, so the gpd_micropc data struct may very well need to be updated with some extra bios-dates in the future. Acked-by:
Maxime Ripard <maxime.ripard@bootlin.com> Signed-off-by:
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Hans de Goede authored
[ Upstream commit 15abc711 ] GPD has done it again, make a nice device (good), use way too generic DMI strings (bad) and use a portrait screen rotated 90 degrees (ugly). Because of the too generic DMI strings this entry is also doing bios-date matching, so the gpd_pocket2 data struct may very well need to be updated with some extra bios-dates in the future. Changes in v2: -Add one more known BIOS date to the list of BIOS dates Cc: Jurgen Kramer <gtmkramer@xs4all.nl> Reported-by:
Jurgen Kramer <gtmkramer@xs4all.nl> Acked-by:
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Don Brace authored
[ Upstream commit 625d7d35 ] - set ioaccel2_sg_element member 'chain_indicator' to IOACCEL2_LAST_SG for the last s/g element. - set ioaccel2_sg_element member 'chain_indicator' to IOACCEL2_CHAIN when chaining. Reviewed-by:
Bader Ali - Saleh <bader.alisaleh@microsemi.com> Reviewed-by:
Scott Teel <scott.teel@microsemi.com> Reviewed-by:
Matt Perricone <matt.perricone@microsemi.com> Signed-off-by:
Don Brace <don.brace@microsemi.com> Signed-off-by:
Martin K. Petersen <martin.petersen@oracle.com> Signed-off-by:
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Amadeusz Sławiński authored
[ Upstream commit 04268bf2 ] When we call snd_soc_component_set_jack(component, NULL, NULL) we should set rt274->jack to passed jack, so when interrupt is triggered it calls snd_soc_jack_report(rt274->jack, ...) with proper value. This fixes problem in machine where in register, we call snd_soc_register(component, &headset, NULL), which just calls rt274_mic_detect via callback. Now when machine driver is removed "headset" will be gone, so we need to tell codec driver that it's gone with: snd_soc_register(component, NULL, NULL), but we also need to be able to handle NULL jack argument here gracefully. If we don't set it to NULL, next time the rt274_irq runs it will call snd_soc_jack_report with first argument being invalid pointer and there will be Oops. Signed-off-by:
Amadeusz Sławiński <amadeuszx.slawinski@linux.intel.com> Signed-off-by:
Mark Brown <broonie@kernel.org> Signed-off-by:
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Amadeusz Sławiński authored
[ Upstream commit 6d647b73 ] During the integration of HDaudio support, we changed the way in which we get hdev in snd_hdac_ext_bus_device_init() to use one preallocated with devm_kzalloc(), however it still left kfree(hdev) in snd_hdac_ext_bus_device_exit(). It leads to oopses when trying to rmmod and modprobe. Fix it, by just removing kfree call. SOF also uses some of the snd_hdac_ functions for HDAudio support but allocated the memory with kzalloc. A matching fix is provided separately to align all users of the snd_hdac_ library. Fixes: 6298542f ("ALSA: hdac: remove memory allocation from snd_hdac_ext_bus_device_init") Reviewed-by:
Takashi Iwai <tiwai@suse.de> Signed-off-by:
Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com> Signed-off-by:
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Alexandre Belloni authored
[ Upstream commit fbc318af ] Gadget drivers may queue request in interrupt context. This would lead to a descriptor allocation in that context. In that case we would hit BUG_ON(in_interrupt()) in __get_vm_area_node. Also remove the unnecessary cast. Acked-by:
Sylvain Lemieux <slemieux.tyco@gmail.com> Tested-by:
James Grant <jamesg@zaltys.org> Signed-off-by:
Alexandre Belloni <alexandre.belloni@bootlin.com> Signed-off-by:
Felipe Balbi <felipe.balbi@linux.intel.com> Signed-off-by:
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Young Xiao authored
[ Upstream commit 62fd0e0a ] There is no deallocation of fusb300->ep[i] elements, allocated at fusb300_probe. The patch adds deallocation of fusb300->ep array elements. Signed-off-by:
Young Xiao <92siuyang@gmail.com> Signed-off-by:
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Kan Liang authored
[ Upstream commit e35faeb6 ] Add the CPUID model numbers of Icelake (ICL) desktop and server processors to the Intel family list. [ Qiuxu: Sort the macros by model number. ] Signed-off-by:
Kan Liang <kan.liang@linux.intel.com> Signed-off-by:
Borislav Petkov <bp@suse.de> Cc: "H. Peter Anvin" <hpa@zytor.com> Cc: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Qiuxu Zhuo <qiuxu.zhuo@intel.com> Cc: Rajneesh Bhardwaj <rajneesh.bhardwaj@linux.intel.com> Cc: rui.zhang@intel.com Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Tony Luck <tony.luck@intel.com> Cc: x86-ml <x86@kernel.org> Link: https://lkml.kernel.org/r/20190603134122.13853-1-kan.liang@linux.intel.comSigned-off-by:
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Marcus Cooper authored
[ Upstream commit f9927000 ] Whilst testing the capture functionality of the i2s on the newer SoCs it was noticed that the recording was somewhat distorted. This was due to the offset not being set correctly on the receiver side. Signed-off-by:
Marcus Cooper <codekipper@gmail.com> Acked-by:
Chen-Yu Tsai <wens@csie.org> Signed-off-by:
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Marcus Cooper authored
[ Upstream commit 7e46169a ] Although not causing any noticeable issues, the mask for the channel offset is covering too many bits. Signed-off-by:
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Yu-Hsuan Hsu authored
[ Upstream commit 5628c897 ] The supported formats are S16_LE and S24_LE now. However, by datasheet of max98090, S24_LE is only supported when it is in the right justified mode. We should remove 24-bit format if it is not in that mode to avoid triggering error. Signed-off-by:
Yu-Hsuan Hsu <yuhsuan@chromium.org> Signed-off-by:
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Hsin-Yi Wang authored
[ Upstream commit 2458d9d6 ] mtk_dsi_stop() should be called after mtk_drm_crtc_atomic_disable(), which needs ovl irq for drm_crtc_wait_one_vblank(), since after mtk_dsi_stop() is called, ovl irq will be disabled. If drm_crtc_wait_one_vblank() is called after last irq, it will timeout with this message: "vblank wait timed out on crtc 0". This happens sometimes when turning off the screen. In drm_atomic_helper.c#disable_outputs(), the calling sequence when turning off the screen is: 1. mtk_dsi_encoder_disable() --> mtk_output_dsi_disable() --> mtk_dsi_stop(); /* sometimes make vblank timeout in atomic_disable */ --> mtk_dsi_poweroff(); 2. mtk_drm_crtc_atomic_disable() --> drm_crtc_wait_one_vblank(); ... --> mtk_dsi_ddp_stop() --> mtk_dsi_poweroff(); mtk_dsi_poweroff() has reference count design, change to make mtk_dsi_stop() called in mtk_dsi_poweroff() when refcount is 0. Fixes: 0707632b ("drm/mediatek: update DSI sub driver flow for sending commands to panel") Signed-off-by:
Hsin-Yi Wang <hsinyi@chromium.org> Signed-off-by:
CK Hu <ck.hu@mediatek.com> Signed-off-by:
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Hsin-Yi Wang authored
[ Upstream commit a4cd1d2b ] num_pipes is used for mutex created in mtk_drm_crtc_create(). If we don't clear num_pipes count, when rebinding driver, the count will be accumulated. From mtk_disp_mutex_get(), there can only be at most 10 mutex id. Clear this number so it starts from 0 in every rebind. Fixes: 119f5173 ("drm/mediatek: Add DRM Driver for Mediatek SoC MT8173.") Signed-off-by:
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Hsin-Yi Wang authored
[ Upstream commit cf49b24f ] shutdown all CRTC when unbinding drm driver. Fixes: 119f5173 ("drm/mediatek: Add DRM Driver for Mediatek SoC MT8173.") Signed-off-by:
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Hsin-Yi Wang authored
[ Upstream commit f0fd8483 ] Unbinding components (i.e. mtk_dsi and mtk_disp_ovl/rdma/color) will trigger master(mtk_drm)'s .unbind(), and currently mtk_drm's unbind won't actually unbind components. During the next bind, mtk_drm_kms_init() is called, and the components are added back. .unbind() should call mtk_drm_kms_deinit() to unbind components. And since component_master_del() in .remove() will trigger .unbind(), which will also unregister device, it's fine to remove original functions called here. Fixes: 119f5173 ("drm/mediatek: Add DRM Driver for Mediatek SoC MT8173.") Signed-off-by:
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Hsin-Yi Wang authored
[ Upstream commit 8fd7a37b ] detatch panel in mtk_dsi_destroy_conn_enc(), since .bind will try to attach it again. Fixes: 2e54c14e ("drm/mediatek: Add DSI sub driver") Signed-off-by:
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YueHaibing authored
[ Upstream commit 5caaf29a ] If spi_register_master fails in spi_bitbang_start because device_add failure, We should return the error code other than 0, otherwise calling spi_bitbang_stop may trigger NULL pointer dereference like this: BUG: KASAN: null-ptr-deref in __list_del_entry_valid+0x45/0xd0 Read of size 8 at addr 0000000000000000 by task syz-executor.0/3661 CPU: 0 PID: 3661 Comm: syz-executor.0 Not tainted 5.1.0+ #28 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.10.2-1ubuntu1 04/01/2014 Call Trace: dump_stack+0xa9/0x10e ? __list_del_entry_valid+0x45/0xd0 ? __list_del_entry_valid+0x45/0xd0 __kasan_report+0x171/0x18d ? __list_del_entry_valid+0x45/0xd0 kasan_report+0xe/0x20 __list_del_entry_valid+0x45/0xd0 spi_unregister_controller+0x99/0x1b0 spi_lm70llp_attach+0x3ae/0x4b0 [spi_lm70llp] ? 0xffffffffc1128000 ? klist_next+0x131/0x1e0 ? driver_detach+0x40/0x40 [parport] port_check+0x3b/0x50 [parport] bus_for_each_dev+0x115/0x180 ? subsys_dev_iter_exit+0x20/0x20 __parport_register_driver+0x1f0/0x210 [parport] ? 0xffffffffc1150000 do_one_initcall+0xb9/0x3b5 ? perf_trace_initcall_level+0x270/0x270 ? kasan_unpoison_shadow+0x30/0x40 ? kasan_unpoison_shadow+0x30/0x40 do_init_module+0xe0/0x330 load_module+0x38eb/0x4270 ? module_frob_arch_sections+0x20/0x20 ? kernel_read_file+0x188/0x3f0 ? find_held_lock+0x6d/0xd0 ? fput_many+0x1a/0xe0 ? __do_sys_finit_module+0x162/0x190 __do_sys_finit_module+0x162/0x190 ? __ia32_sys_init_module+0x40/0x40 ? __mutex_unlock_slowpath+0xb4/0x3f0 ? wait_for_completion+0x240/0x240 ? vfs_write+0x160/0x2a0 ? lockdep_hardirqs_off+0xb5/0x100 ? mark_held_locks+0x1a/0x90 ? do_syscall_64+0x14/0x2a0 do_syscall_64+0x72/0x2a0 entry_SYSCALL_64_after_hwframe+0x49/0xbe Reported-by:
Hulk Robot <hulkci@huawei.com> Fixes: 702a4879 ("spi: bitbang: Let spi_bitbang_start() take a reference to master") Signed-off-by:
YueHaibing <yuehaibing@huawei.com> Reviewed-by:
Geert Uytterhoeven <geert+renesas@glider.be> Reviewed-by:
Axel Lin <axel.lin@ingics.com> Reviewed-by:
Mukesh Ojha <mojha@codeaurora.org> Signed-off-by:
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Viorel Suman authored
[ Upstream commit 176a1183 ] snd_soc_component_update_bits() may return 1 if operation was successful and the value of the register changed. Return a non-zero in ak4458_rstn_control for an error only. Signed-off-by:
Shengjiu Wang <shengjiu.wang@nxp.com> Signed-off-by:
Viorel Suman <viorel.suman@nxp.com> Reviewed-by:
Daniel Baluta <daniel.baluta@nxp.com> Signed-off-by:
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Libin Yang authored
[ Upstream commit 5087a8f1 ] If playback/capture is paused and system enters S3, after system returns from suspend, BE dai needs to call prepare() callback when playback/capture is released from pause if RESUME_INFO flag is not set. Currently, the dpcm_be_dai_prepare() function will block calling prepare() if the pcm is in SND_SOC_DPCM_STATE_PAUSED state. This will cause the following test case fail if the pcm uses BE: playback -> pause -> S3 suspend -> S3 resume -> pause release The playback may exit abnormally when pause is released because the BE dai prepare() is not called. This patch allows dpcm_be_dai_prepare() to call dai prepare() callback in SND_SOC_DPCM_STATE_PAUSED state. Signed-off-by:
Libin Yang <libin.yang@intel.com> Signed-off-by:
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Viorel Suman authored
[ Upstream commit a8dee20d ] AK4458 is probed successfully even if AK4458 is not present - this is caused by probe function returning no error on i2c access failure. Return an error on probe if i2c access has failed. Signed-off-by:
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Matt Flax authored
[ Upstream commit f3df05c8 ] The cs4265_readable_register function stopped short of the maximum register. An example bug is taken from : https://github.com/Audio-Injector/Ultra/issues/25 Where alsactl store fails with : Cannot read control '2,0,0,C Data Buffer,0': Input/output error This patch fixes the bug by setting the cs4265 to have readable registers up to the maximum hardware register CS4265_MAX_REGISTER. Signed-off-by:
Matt Flax <flatmax@flatmax.org> Reviewed-by:
Charles Keepax <ckeepax@opensource.cirrus.com> Signed-off-by:
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Florian Westphal authored
commit 69aeb538 upstream. Guard this with a check vs. ipv4, IPCB isn't valid in ipv6 case. Signed-off-by:
Florian Westphal <fw@strlen.de> Signed-off-by:
Pablo Neira Ayuso <pablo@netfilter.org> Signed-off-by:
Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Florian Westphal authored
commit 91a9048f upstream. We can't deal with tcp sequence number rewrite in flow_offload. While at it, simplify helper check, we only need to know if the extension is present, we don't need the helper data. Signed-off-by:
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Florian Westphal authored
commit 8437a620 upstream. Without it, whenever a packet has to be pushed up the stack (e.g. because of mtu mismatch), then conntrack will flag packets as invalid, which in turn breaks NAT. Signed-off-by:
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Florian Westphal authored
commit e75b3e1c upstream. Its irrelevant if the DF bit is set or not, we must pass packet to stack in either case. If the DF bit is set, we must pass it to stack so the appropriate ICMP error can be generated. If the DF is not set, we must pass it to stack for fragmentation. Signed-off-by:
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Guilherme G. Piccoli authored
```-------------------------------------------------------------- This patch is not on mainline and is meant to 4.19 stable *only*. After the patch description there's a reasoning about that. ``` -------------------------------------------------------------- Commit cd4a4ae4 ("block: don't use blocking queue entered for recursive bio submits") introduced the flag BIO_QUEUE_ENTERED in order split bios bypass the blocking queue entering routine and use the live non-blocking version. It was a result of an extensive discussion in a linux-block thread[0], and the purpose of this change was to prevent a hung task waiting on a reference to drop. Happens that md raid0 split bios all the time, and more important, it changes their underlying device to the raid member. After the change introduced by this flag's usage, we experience various crashes if a raid0 member is removed during a large write. This happens because the bio reaches the live queue entering function when the queue of the raid0 member is dying. A simple reproducer of this behavior is presented below: a) Build kernel v4.19.56-stable with CONFIG_BLK_DEV_THROTTLING=y. b) Create a raid0 md array with 2 NVMe devices as members, and mount it with an ext4 filesystem. c) Run the following oneliner (supposing the raid0 is mounted in /mnt): (dd of=/mnt/tmp if=/dev/zero bs=1M count=999 &); sleep 0.3; echo 1 > /sys/block/nvme1n1/device/device/remove (whereas nvme1n1 is the 2nd array member) This will trigger the following warning/oops: ------------[ cut here ]------------ BUG: unable to handle kernel NULL pointer dereference at 0000000000000155 PGD 0 P4D 0 Oops: 0000 [#1] SMP PTI RIP: 0010:blk_throtl_bio+0x45/0x970 [...] Call Trace: generic_make_request_checks+0x1bf/0x690 generic_make_request+0x64/0x3f0 raid0_make_request+0x184/0x620 [raid0] ? raid0_make_request+0x184/0x620 [raid0] md_handle_request+0x126/0x1a0 md_make_request+0x7b/0x180 generic_make_request+0x19e/0x3f0 submit_bio+0x73/0x140 [...] This patch changes raid0 driver to fallback to the "old" blocking queue entering procedure, by clearing the BIO_QUEUE_ENTERED from raid0 bios. This prevents the crashes and restores the regular behavior of raid0 arrays when a member is removed during a large write. [0] lore.kernel.org/linux-block/343bbbf6-64eb-879e-d19e-96aebb037d47@I-love.SAKURA.ne.jp ---------------------------- Why this is not on mainline? ---------------------------- The patch was originally submitted upstream in linux-raid and linux-block mailing-lists - it was initially accepted by Song Liu, but Christoph Hellwig[1] observed that there was a clean-up series ready to be accepted from Ming Lei[2] that fixed the same issue. The accepted patches from Ming's series in upstream are: commit 47cdee29 ("block: move blk_exit_queue into __blk_release_queue") and commit fe200864 ("block: don't protect generic_make_request_checks with blk_queue_enter"). Those patches basically do a clean-up in the block layer involving: 1) Putting back blk_exit_queue() logic into __blk_release_queue(); that path was changed in the past and the logic from blk_exit_queue() was added to blk_cleanup_queue(). 2) Removing the guard/protection in generic_make_request_checks() with blk_queue_enter(). The problem with Ming's series for -stable is that it relies in the legacy request IO path removal. So it's "backport-able" to v5.0+, but doing that for early versions (like 4.19) would incur in complex code changes. Hence, it was suggested by Christoph and Song Liu that this patch was submitted to stable only; otherwise merging it upstream would add code to fix a path removed in a subsequent commit. [1] lore.kernel.org/linux-block/20190521172258.GA32702@infradead.org [2] lore.kernel.org/linux-block/20190515030310.20393-1-ming.lei@redhat.com Cc: Christoph Hellwig <hch@lst.de> Cc: Jens Axboe <axboe@kernel.dk> Cc: Ming Lei <ming.lei@redhat.com> Cc: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp> Fixes: cd4a4ae4 ("block: don't use blocking queue entered for recursive bio submits") Signed-off-by:
Guilherme G. Piccoli <gpiccoli@canonical.com> Acked-by:
Song Liu <songliubraving@fb.com> Signed-off-by:
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Guilherme G. Piccoli authored
```-------------------------------------------------------------- This patch is not on mainline and is meant to 4.19 stable *only*. After the patch description there's a reasoning about that. ``` -------------------------------------------------------------- Commit 37f9579f ("blk-mq: Avoid that submitting a bio concurrently with device removal triggers a crash") introduced a NULL pointer dereference in generic_make_request(). The patch sets q to NULL and enter_succeeded to false; right after, there's an 'if (enter_succeeded)' which is not taken, and then the 'else' will dereference q in blk_queue_dying(q). This patch just moves the 'q = NULL' to a point in which it won't trigger the oops, although the semantics of this NULLification remains untouched. A simple test case/reproducer is as follows: a) Build kernel v4.19.56-stable with CONFIG_BLK_CGROUP=n. b) Create a raid0 md array with 2 NVMe devices as members, and mount it with an ext4 filesystem. c) Run the following oneliner (supposing the raid0 is mounted in /mnt): (dd of=/mnt/tmp if=/dev/zero bs=1M count=999 &); sleep 0.3; echo 1 > /sys/block/nvme1n1/device/device/remove (whereas nvme1n1 is the 2nd array member) This will trigger the following oops: BUG: unable to handle kernel NULL pointer dereference at 0000000000000078 PGD 0 P4D 0 Oops: 0000 [#1] SMP PTI RIP: 0010:generic_make_request+0x32b/0x400 Call Trace: submit_bio+0x73/0x140 ext4_io_submit+0x4d/0x60 ext4_writepages+0x626/0xe90 do_writepages+0x4b/0xe0 [...] This patch has no functional changes and preserves the md/raid0 behavior when a member is removed before kernel v4.17. ---------------------------- Why this is not on mainline? ---------------------------- The patch was originally submitted upstream in linux-raid and linux-block mailing-lists - it was initially accepted by Song Liu, but Christoph Hellwig[0] observed that there was a clean-up series ready to be accepted from Ming Lei[1] that fixed the same issue. The accepted patches from Ming's series in upstream are: commit 47cdee29 ("block: move blk_exit_queue into __blk_release_queue") and commit fe200864 ("block: don't protect generic_make_request_checks with blk_queue_enter"). Those patches basically do a clean-up in the block layer involving: 1) Putting back blk_exit_queue() logic into __blk_release_queue(); that path was changed in the past and the logic from blk_exit_queue() was added to blk_cleanup_queue(). 2) Removing the guard/protection in generic_make_request_checks() with blk_queue_enter(). The problem with Ming's series for -stable is that it relies in the legacy request IO path removal. So it's "backport-able" to v5.0+, but doing that for early versions (like 4.19) would incur in complex code changes. Hence, it was suggested by Christoph and Song Liu that this patch was submitted to stable only; otherwise merging it upstream would add code to fix a path removed in a subsequent commit. [0] lore.kernel.org/linux-block/20190521172258.GA32702@infradead.org [1] lore.kernel.org/linux-block/20190515030310.20393-1-ming.lei@redhat.com Cc: Christoph Hellwig <hch@lst.de> Cc: Jens Axboe <axboe@kernel.dk> Reviewed-by:
Bart Van Assche <bvanassche@acm.org> Reviewed-by:
Ming Lei <ming.lei@redhat.com> Tested-by:
Eric Ren <renzhengeek@gmail.com> Fixes: 37f9579f ("blk-mq: Avoid that submitting a bio concurrently with device removal triggers a crash") Signed-off-by:
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Matias Karhumaa authored
commit eca94432 upstream. Fix minimum encryption key size check so that HCI_MIN_ENC_KEY_SIZE is also allowed as stated in the comment. This bug caused connection problems with devices having maximum encryption key size of 7 octets (56-bit). Fixes: 693cd8ce ("Bluetooth: Fix regression with minimum encryption key size alignment") Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=203997Signed-off-by:
Matias Karhumaa <matias.karhumaa@gmail.com> Cc: stable@vger.kernel.org Signed-off-by:
Marcel Holtmann <marcel@holtmann.org> Signed-off-by:
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- 03 Jul, 2019 3 commits
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Greg Kroah-Hartman authored
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Jean-Philippe Brucker authored
commit c5e2edeb upstream. GCC 8.1.0 reports that the ldadd instruction encoding, recently added to insn.c, doesn't match the mask and couldn't possibly be identified: linux/arch/arm64/include/asm/insn.h: In function 'aarch64_insn_is_ldadd': linux/arch/arm64/include/asm/insn.h:280:257: warning: bitwise comparison always evaluates to false [-Wtautological-compare] Bits [31:30] normally encode the size of the instruction (1 to 8 bytes) and the current instruction value only encodes the 4- and 8-byte variants. At the moment only the BPF JIT needs this instruction, and doesn't require the 1- and 2-byte variants, but to be consistent with our other ldr and str instruction encodings, clear the size field in the insn value. Fixes: 34b8ab09 ("bpf, arm64: use more scalable stadd over ldxr / stxr loop in xadd") Acked-by:
Daniel Borkmann <daniel@iogearbox.net> Reported-by:
Kuninori Morimoto <kuninori.morimoto.gx@renesas.com> Signed-off-by:
Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com> Signed-off-by:
Jean-Philippe Brucker <jean-philippe.brucker@arm.com> Signed-off-by:
Will Deacon <will.deacon@arm.com> Signed-off-by:
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Thinh Nguyen authored
commit c7152763 upstream. Currently req->num_trbs is not reset after the TRBs are skipped and processed from the cancelled list. The gadget driver may reuse the request with an invalid req->num_trbs, and DWC3 will incorrectly skip trbs. To fix this, simply reset req->num_trbs to 0 after skipping through all of them. Fixes: c3acd590 ("usb: dwc3: gadget: use num_trbs when skipping TRBs on ->dequeue()") Signed-off-by:
Thinh Nguyen <thinhn@synopsys.com> Signed-off-by:
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