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2020-09-21Merge tag 'efi-urgent-for-v5.9-rc5' of ↵Linus Torvalds1-1/+1
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull EFI fix from Borislav Petkov: "Ensure that the EFI bootloader control module only probes successfully on systems that support the EFI SetVariable runtime service" [ Tag and commit from Ard Biesheuvel, forwarded by Borislav ] * tag 'efi-urgent-for-v5.9-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: efi: efibc: check for efivars write capability
2020-09-21Merge tag 'libnvdimm-fixes-5.9-rc6' of ↵Linus Torvalds3-11/+20
git://git.kernel.org/pub/scm/linux/kernel/git/nvdimm/nvdimm Pull libnvdimm fixes from Dan Williams: "A handful of fixes to address a string of mistakes in the mechanism for device-mapper to determine if its component devices are dax capable. - Fix an original bug in device-mapper table reference counting when interrogating dax capability in the component device. This bug was hidden by the following bug. - Fix device-mapper to use the proper helper (dax_supported() instead of the leaf helper generic_fsdax_supported()) to determine dax operation of a stacked block device configuration. The original implementation is only valid for one level of dax-capable block device stacking. This bug was discovered while fixing the below regression. - Fix an infinite recursion regression introduced by broken attempts to quiet the generic_fsdax_supported() path and make it bail out before logging "dax capability not found" errors" * tag 'libnvdimm-fixes-5.9-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/nvdimm/nvdimm: dax: Fix stack overflow when mounting fsdax pmem device dm: Call proper helper to determine dax support dm/dax: Fix table reference counts
2020-09-20Merge tag 'riscv-for-linus-5.9-rc6' of ↵Linus Torvalds1-0/+17
git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux Pull RISC-V fixes from Palmer Dabbelt: - A fix for a lockdep issue to avoid an asserting triggering during early boot. There shouldn't be any incorrect behavior as the system isn't concurrent at the time. - The addition of a missing fence when installing early fixmap mappings. - A corretion to the K210 device tree's interrupt map. - A fix for M-mode timer handling on the K210. * tag 'riscv-for-linus-5.9-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux: RISC-V: Resurrect the MMIO timer implementation for M-mode systems riscv: Fix Kendryte K210 device tree riscv: Add sfence.vma after early page table changes RISC-V: Take text_mutex in ftrace_init_nop()
2020-09-20Merge tag 'usb-5.9-rc6' of ↵Linus Torvalds9-17/+64
git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb Pull USB/Thunderbolt fixes from Greg KH: "Here are some small USB and one Thunderbolt driver fixes. Nothing major at all, just some fixes for reported issues, and a quirk addition: - typec fixes - UAS disconnect fix - usblp race fix - ehci-hcd modversions build fix - ignore wakeup quirk table addition - thunderbolt DROM read fix All of these have been in linux-next with no reported issues" * tag 'usb-5.9-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb: usblp: fix race between disconnect() and read() ehci-hcd: Move include to keep CRC stable usb: typec: intel_pmc_mux: Handle SCU IPC error conditions USB: quirks: Add USB_QUIRK_IGNORE_REMOTE_WAKEUP quirk for BYD zhaoxin notebook USB: UAS: fix disconnect by unplugging a hub usb: typec: ucsi: Prevent mode overrun usb: typec: ucsi: acpi: Increase command completion timeout value thunderbolt: Retry DROM read once if parsing fails
2020-09-20Merge tag 'tty-5.9-rc6' of ↵Linus Torvalds3-25/+32
git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty Pull tty/serial/fbcon fixes from Greg KH: "Here are some small tty/serial and one more fbcon fix. They include: - serial core locking regression fixes - new device ids for 8250_pci driver - fbcon fix for syzbot found issue All have been in linux-next with no reported issues" * tag 'tty-5.9-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty: fbcon: Fix user font detection test at fbcon_resize(). serial: 8250_pci: Add Realtek 816a and 816b serial: core: fix console port-lock regression serial: core: fix port-lock initialisation
2020-09-20Merge tag 'edac_urgent_for_v5.9_rc6' of ↵Linus Torvalds1-0/+5
git://git.kernel.org/pub/scm/linux/kernel/git/ras/ras Pull EDAC fixes from Borislav Petkov: "Two fixes for resulting from CONFIG_DEBUG_TEST_DRIVER_REMOVE=y experiments: - complete a previous fix to reset a local structure containing scanned system data properly so that the driver rescans, as it should, on a second load. - address a refcount underflow due to not paying attention to the driver whitelest on unregister" * tag 'edac_urgent_for_v5.9_rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/ras/ras: EDAC/ghes: Check whether the driver is on the safe list correctly EDAC/ghes: Clear scanned data on unload
2020-09-20Merge branch 'for-linus' of ↵Linus Torvalds3-8/+28
git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input Pull input fixes from Dmitry Torokhov: "Just a couple of driver quirks" * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input: Input: trackpoint - add new trackpoint variant IDs Input: i8042 - add Entroware Proteus EL07R4 to nomux and reset lists
2020-09-20dax: Fix stack overflow when mounting fsdax pmem deviceAdrian Huang1-6/+6
When mounting fsdax pmem device, commit 6180bb446ab6 ("dax: fix detection of dax support for non-persistent memory block devices") introduces the stack overflow [1][2]. Here is the call path for mounting ext4 file system: ext4_fill_super bdev_dax_supported __bdev_dax_supported dax_supported generic_fsdax_supported __generic_fsdax_supported bdev_dax_supported The call path leads to the infinite calling loop, so we cannot call bdev_dax_supported() in __generic_fsdax_supported(). The sanity checking of the variable 'dax_dev' is moved prior to the two bdev_dax_pgoff() checks [3][4]. [1] https://lore.kernel.org/linux-nvdimm/1420999447.1004543.1600055488770.JavaMail.zimbra@redhat.com/ [2] https://lore.kernel.org/linux-nvdimm/alpine.LRH.2.02.2009141131220.30651@file01.intranet.prod.int.rdu2.redhat.com/ [3] https://lore.kernel.org/linux-nvdimm/CA+RJvhxBHriCuJhm-D8NvJRe3h2MLM+ZMFgjeJjrRPerMRLvdg@mail.gmail.com/ [4] https://lore.kernel.org/linux-nvdimm/20200903160608.GU878166@iweiny-DESK2.sc.intel.com/ Fixes: 6180bb446ab6 ("dax: fix detection of dax support for non-persistent memory block devices") Reported-by: Yi Zhang <yi.zhang@redhat.com> Reported-by: Mikulas Patocka <mpatocka@redhat.com> Signed-off-by: Adrian Huang <ahuang12@lenovo.com> Reviewed-by: Jan Kara <jack@suse.cz> Tested-by: Ritesh Harjani <riteshh@linux.ibm.com> Cc: Coly Li <colyli@suse.de> Cc: Ira Weiny <ira.weiny@intel.com> Cc: John Pittman <jpittman@redhat.com> Link: https://lore.kernel.org/r/20200917111549.6367-1-adrianhuang0701@gmail.com Signed-off-by: Dan Williams <dan.j.williams@intel.com>
2020-09-20dm: Call proper helper to determine dax supportJan Kara2-3/+11
DM was calling generic_fsdax_supported() to determine whether a device referenced in the DM table supports DAX. However this is a helper for "leaf" device drivers so that they don't have to duplicate common generic checks. High level code should call dax_supported() helper which that calls into appropriate helper for the particular device. This problem manifested itself as kernel messages: dm-3: error: dax access failed (-95) when lvm2-testsuite run in cases where a DM device was stacked on top of another DM device. Fixes: 7bf7eac8d648 ("dax: Arrange for dax_supported check to span multiple devices") Cc: <stable@vger.kernel.org> Tested-by: Adrian Huang <ahuang12@lenovo.com> Signed-off-by: Jan Kara <jack@suse.cz> Acked-by: Mike Snitzer <snitzer@redhat.com> Reported-by: kernel test robot <lkp@intel.com> Link: https://lore.kernel.org/r/160061715195.13131.5503173247632041975.stgit@dwillia2-desk3.amr.corp.intel.com Signed-off-by: Dan Williams <dan.j.williams@intel.com>
2020-09-20dm/dax: Fix table reference countsDan Williams1-2/+3
A recent fix to the dm_dax_supported() flow uncovered a latent bug. When dm_get_live_table() fails it is still required to drop the srcu_read_lock(). Without this change the lvm2 test-suite triggers this warning: # lvm2-testsuite --only pvmove-abort-all.sh WARNING: lock held when returning to user space! 5.9.0-rc5+ #251 Tainted: G OE ------------------------------------------------ lvm/1318 is leaving the kernel with locks still held! 1 lock held by lvm/1318: #0: ffff9372abb5a340 (&md->io_barrier){....}-{0:0}, at: dm_get_live_table+0x5/0xb0 [dm_mod] ...and later on this hang signature: INFO: task lvm:1344 blocked for more than 122 seconds. Tainted: G OE 5.9.0-rc5+ #251 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:lvm state:D stack: 0 pid: 1344 ppid: 1 flags:0x00004000 Call Trace: __schedule+0x45f/0xa80 ? finish_task_switch+0x249/0x2c0 ? wait_for_completion+0x86/0x110 schedule+0x5f/0xd0 schedule_timeout+0x212/0x2a0 ? __schedule+0x467/0xa80 ? wait_for_completion+0x86/0x110 wait_for_completion+0xb0/0x110 __synchronize_srcu+0xd1/0x160 ? __bpf_trace_rcu_utilization+0x10/0x10 __dm_suspend+0x6d/0x210 [dm_mod] dm_suspend+0xf6/0x140 [dm_mod] Fixes: 7bf7eac8d648 ("dax: Arrange for dax_supported check to span multiple devices") Cc: <stable@vger.kernel.org> Cc: Jan Kara <jack@suse.cz> Cc: Alasdair Kergon <agk@redhat.com> Cc: Mike Snitzer <snitzer@redhat.com> Reported-by: Adrian Huang <ahuang12@lenovo.com> Reviewed-by: Ira Weiny <ira.weiny@intel.com> Tested-by: Adrian Huang <ahuang12@lenovo.com> Link: https://lore.kernel.org/r/160045867590.25663.7548541079217827340.stgit@dwillia2-desk3.amr.corp.intel.com Signed-off-by: Dan Williams <dan.j.williams@intel.com>
2020-09-19Merge branch 'i2c/for-current' of ↵Linus Torvalds5-17/+29
git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux Pull i2c fixes from Wolfram Sang: "Another bunch of fixes for I2C. Jean's i801 patch is a cleanup on top of Volker's i801 patch, but it will make dependency handling much easier if those two go together" * 'i2c/for-current' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux: i2c: mxs: use MXS_DMA_CTRL_WAIT4END instead of DMA_CTRL_ACK i2c: mediatek: Send i2c master code at more than 1MHz i2c: mediatek: Fix generic definitions for bus frequency i2c: core: Call i2c_acpi_install_space_handler() before i2c_acpi_register_devices() i2c: i801: Simplify the suspend callback i2c: i801: Fix resume bug i2c: aspeed: Mask IRQ status to relevant bits
2020-09-19RISC-V: Resurrect the MMIO timer implementation for M-mode systemsPalmer Dabbelt1-0/+17
The K210 doesn't implement rdtime in M-mode, and since that's where Linux runs in the NOMMU systems that means we can't use rdtime. The K210 is the only system that anyone is currently running NOMMU or M-mode on, so here we're just inlining the timer read directly. This also adds the CLINT driver as an !MMU dependency, as it's currently the only timer driver availiable for these systems and without it we get a build failure for some configurations. Tested-by: Damien Le Moal <damien.lemoal@wdc.com> Signed-off-by: Palmer Dabbelt <palmerdabbelt@google.com>
2020-09-19Merge tag 's390-5.9-6' of ↵Linus Torvalds1-4/+4
git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux Pull s390 fixes from Vasily Gorbik: - Fix order in trace_hardirqs_off_caller() to make locking state consistent even if the IRQ tracer calls into lockdep again. Touches common code. Acked-by Peter Zijlstra. - Correctly handle secure storage violation exception to avoid kernel panic triggered by user space misbehaviour. - Switch the idle->seqcount over to using raw_write_*() to avoid "suspicious RCU usage". - Fix memory leaks on hard unplug in pci code. - Use kvmalloc instead of kmalloc for larger allocations in zcrypt. - Add few missing __init annotations to static functions to avoid section mismatch complains when functions are not inlined. * tag 's390-5.9-6' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux: s390: add 3f program exception handler lockdep: fix order in trace_hardirqs_off_caller() s390/pci: fix leak of DMA tables on hard unplug s390/init: add missing __init annotations s390/zcrypt: fix kmalloc 256k failure s390/idle: fix suspicious RCU usage
2020-09-19i2c: mxs: use MXS_DMA_CTRL_WAIT4END instead of DMA_CTRL_ACKMatthias Schiffer1-3/+7
The driver-specific usage of the DMA_CTRL_ACK flag was replaced with a custom flag in commit ceeeb99cd821 ("dmaengine: mxs: rename custom flag"), but i2c-mxs was not updated to use the new flag, completely breaking I2C transactions using DMA. Fixes: ceeeb99cd821 ("dmaengine: mxs: rename custom flag") Signed-off-by: Matthias Schiffer <matthias.schiffer@ew.tq-group.com> Reviewed-by: Fabio Estevam <festevam@gmail.com> Signed-off-by: Wolfram Sang <wsa@kernel.org>
2020-09-18i2c: mediatek: Send i2c master code at more than 1MHzQii Wang1-1/+1
The master code needs to being sent when the speed is more than I2C_MAX_FAST_MODE_PLUS_FREQ, not I2C_MAX_FAST_MODE_FREQ in the latest I2C-bus specification and user manual. Signed-off-by: Qii Wang <qii.wang@mediatek.com> Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com> Signed-off-by: Wolfram Sang <wsa@kernel.org>
2020-09-18i2c: mediatek: Fix generic definitions for bus frequencyQii Wang1-2/+2
The max frequency of mediatek i2c controller driver is I2C_MAX_HIGH_SPEED_MODE_FREQ, not I2C_MAX_FAST_MODE_PLUS_FREQ. Fix it. Fixes: 90224e6468e1 ("i2c: drivers: Use generic definitions for bus frequencies") Reviewed-by: Yingjoe Chen <yingjoe.chen@mediatek.com> Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com> Signed-off-by: Qii Wang <qii.wang@mediatek.com> Signed-off-by: Wolfram Sang <wsa@kernel.org>
2020-09-18Merge tag 'powerpc-5.9-5' of ↵Linus Torvalds1-4/+11
git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux Pull powerpc fixes from Michael Ellerman: "Some more powerpc fixes for 5.9: - Opt us out of the DEBUG_VM_PGTABLE support for now as it's causing crashes. - Fix a long standing bug in our DMA mask handling that was hidden until recently, and which caused problems with some drivers. - Fix a boot failure on systems with large amounts of RAM, and no hugepage support and using Radix MMU, only seen in the lab. - A few other minor fixes. Thanks to Alexey Kardashevskiy, Aneesh Kumar K.V, Gautham R. Shenoy, Hari Bathini, Ira Weiny, Nick Desaulniers, Shirisha Ganta, Vaibhav Jain, and Vaidyanathan Srinivasan" * tag 'powerpc-5.9-5' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux: powerpc/papr_scm: Limit the readability of 'perf_stats' sysfs attribute cpuidle: pseries: Fix CEDE latency conversion from tb to us powerpc/dma: Fix dma_map_ops::get_required_mask Revert "powerpc/build: vdso linker warning for orphan sections" powerpc/mm: Remove DEBUG_VM_PGTABLE support on powerpc selftests/powerpc: Skip PROT_SAO test in guests/LPARS powerpc/book3s64/radix: Fix boot failure with large amount of guest memory
2020-09-18Merge tag 'pm-5.9-rc6' of ↵Linus Torvalds3-53/+71
git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm Pull power management updates from Rafael Wysocki: "These add a new CPU ID to the RAPL power capping driver and prevent the ACPI processor idle driver from triggering RCU-lockdep complaints. Specifics: - Add support for the Lakefield chip to the RAPL power capping driver (Ricardo Neri). - Modify the ACPI processor idle driver to prevent it from triggering RCU-lockdep complaints which has started to happen after recent changes in that area (Peter Zijlstra)" * tag 'pm-5.9-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: ACPI: processor: Take over RCU-idle for C3-BM idle cpuidle: Allow cpuidle drivers to take over RCU-idle ACPI: processor: Use CPUIDLE_FLAG_TLB_FLUSHED ACPI: processor: Use CPUIDLE_FLAG_TIMER_STOP powercap: RAPL: Add support for Lakefield
2020-09-18Merge tag 'iommu-fixes-v5.9-rc5' of ↵Linus Torvalds1-1/+7
git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu Pull iommu fixes from Joerg Roedel: "Two fixes for the AMD IOMMU driver: - Fix a potential NULL-ptr dereference found by smatch - Fix interrupt remapping when a device is assigned to a guest and AVIC is enabled" * tag 'iommu-fixes-v5.9-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu: iommu/amd: Restore IRTE.RemapEn bit for amd_iommu_activate_guest_mode iommu/amd: Fix potential @entry null deref
2020-09-18Merge tag 'mtd/fixes-for-5.9-rc6' of ↵Linus Torvalds2-43/+24
git://git.kernel.org/pub/scm/linux/kernel/git/mtd/linux Pull MTD/SPI NOR fixes from Vignesh Raghavendra: "Revert patches that caused non volatile Quad Enable bit to be cleared for certain SPI NOR flashes during module remove or during shutdown, thus breaking backward compatibility" Acked-by: Miquel Raynal <miquel.raynal@bootlin.com> * tag 'mtd/fixes-for-5.9-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/mtd/linux: Revert "mtd: spi-nor: Add capability to disable flash quad mode" Revert "mtd: spi-nor: Disable the flash quad mode in spi_nor_restore()"
2020-09-18Merge branch 'pm-cpuidle'Rafael J. Wysocki2-53/+70
* pm-cpuidle: ACPI: processor: Take over RCU-idle for C3-BM idle cpuidle: Allow cpuidle drivers to take over RCU-idle ACPI: processor: Use CPUIDLE_FLAG_TLB_FLUSHED ACPI: processor: Use CPUIDLE_FLAG_TIMER_STOP
2020-09-18iommu/amd: Restore IRTE.RemapEn bit for amd_iommu_activate_guest_modeSuravee Suthikulpanit1-0/+4
Commit e52d58d54a32 ("iommu/amd: Use cmpxchg_double() when updating 128-bit IRTE") removed an assumption that modify_irte_ga always set the valid bit, which requires the callers to set the appropriate value for the struct irte_ga.valid bit before calling the function. Similar to the commit 26e495f34107 ("iommu/amd: Restore IRTE.RemapEn bit after programming IRTE"), which is for the function amd_iommu_deactivate_guest_mode(). The same change is also needed for the amd_iommu_activate_guest_mode(). Otherwise, this could trigger IO_PAGE_FAULT for the VFIO based VMs with AVIC enabled. Fixes: e52d58d54a321 ("iommu/amd: Use cmpxchg_double() when updating 128-bit IRTE") Reported-by: Maxim Levitsky <mlevitsk@redhat.com> Signed-off-by: Suravee Suthikulpanit <suravee.suthikulpanit@amd.com> Tested-by: Maxim Levitsky <mlevitsk@redhat.com> Reviewed-by: Joao Martins <joao.m.martins@oracle.com> Reviewed-by: Maxim Levitsky <mlevitsk@redhat.com> Cc: Joao Martins <joao.m.martins@oracle.com> Link: https://lore.kernel.org/r/20200916111720.43913-1-suravee.suthikulpanit@amd.com Signed-off-by: Joerg Roedel <jroedel@suse.de>
2020-09-18iommu/amd: Fix potential @entry null derefJoao Martins1-1/+3
After commit 26e495f34107 ("iommu/amd: Restore IRTE.RemapEn bit after programming IRTE"), smatch warns: drivers/iommu/amd/iommu.c:3870 amd_iommu_deactivate_guest_mode() warn: variable dereferenced before check 'entry' (see line 3867) Fix this by moving the @valid assignment to after @entry has been checked for NULL. Fixes: 26e495f34107 ("iommu/amd: Restore IRTE.RemapEn bit after programming IRTE") Reported-by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: Joao Martins <joao.m.martins@oracle.com> Reviewed-by: Suravee Suthikulpanit <suravee.suthikulpanit@amd.com> Cc: Suravee Suthikulpanit <suravee.suthikulpanit@amd.com> Link: https://lore.kernel.org/r/20200910171621.12879-1-joao.m.martins@oracle.com Signed-off-by: Joerg Roedel <jroedel@suse.de>
2020-09-18Merge tag 'drm-fixes-2020-09-18' of git://anongit.freedesktop.org/drm/drmLinus Torvalds18-86/+149
Pull drm fixes from Dave Airlie: "A bunch of small fixes, some of the i915 ones have been out for a while and got better commit msg explaining some better reasoning behind them (hopefully this trend continues). Otherwise there a few AMD related ones mostly small, one radeon PLL regression fix and a bunch of small mediatek fixes. amdgpu: - Sienna Cichlid fixes - Navy Flounder fixes - DC fixes amdkfd: - Fix a GPU reset crash - Fix a memory leak radeon: - Revert a PLL fix that broke other boards i915: - Avoid exposing a partially constructed context - Use RCU instead of mutex for context termination list iteration - Avoid data race reported by KCSAN - Filter wake_flags passed to default_wake_function mediatek: - Fix scrolling of panel - Remove duplicated include - Use CPU when fail to get cmdq event - Add missing put_device() call" * tag 'drm-fixes-2020-09-18' of git://anongit.freedesktop.org/drm/drm: (21 commits) drm/amd/display: Don't log hdcp module warnings in dmesg drm/amdgpu: declare ta firmware for navy_flounder drm/mediatek: Add missing put_device() call in mtk_hdmi_dt_parse_pdata() drm/mediatek: Add missing put_device() call in mtk_drm_kms_init() drm/mediatek: Add exception handing in mtk_drm_probe() if component init fail drm/mediatek: Add missing put_device() call in mtk_ddp_comp_init() drm/mediatek: Use CPU when fail to get cmdq event drm/mediatek: Remove duplicated include drm/i915: Filter wake_flags passed to default_wake_function drm/i915: Be wary of data races when reading the active execlists drm/i915/gem: Reduce context termination list iteration guard to RCU drm/i915/gem: Delay tracking the GEM context until it is registered drm/amdgpu/dc: Require primary plane to be enabled whenever the CRTC is drm/radeon: revert "Prefer lower feedback dividers" drm/amdgpu: Include sienna_cichlid in USBC PD FW support. drm/amd/display: update nv1x stutter latencies drm/amd/display: Don't use DRM_ERROR() for DTM add topology drm/amd/pm: support runtime pptable update for sienna_cichlid etc. drm/amdkfd: fix a memory leak issue drm/kfd: fix a system crash issue during GPU recovery ...
2020-09-18Merge tag 'mediatek-drm-fixes-5.9' of ↵Dave Airlie5-26/+49
https://git.kernel.org/pub/scm/linux/kernel/git/chunkuang.hu/linux into drm-fixes Mediatek DRM Fixes for Linux 5.9 1. Fix scrolling of panel 2. Remove duplicated include 3. Use CPU when fail to get cmdq event 4. Add missing put_device() call Signed-off-by: Dave Airlie <airlied@redhat.com> From: Chun-Kuang Hu <chunkuang.hu@kernel.org> Link: https://patchwork.freedesktop.org/patch/msgid/20200916231724.30571-1-chunkuang.hu@kernel.org
2020-09-18Merge tag 'drm-intel-fixes-2020-09-17' of ↵Dave Airlie4-27/+71
ssh://git.freedesktop.org/git/drm/drm-intel into drm-fixes drm/i915 fixes for v5.9-rc6: - Avoid exposing a partially constructed context - Use RCU instead of mutex for context termination list iteration - Avoid data race reported by KCSAN - Filter wake_flags passed to default_wake_function Signed-off-by: Dave Airlie <airlied@redhat.com> From: Jani Nikula <jani.nikula@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/87y2l8vlj3.fsf@intel.com
2020-09-18Merge tag 'amd-drm-fixes-5.9-2020-09-17' of ↵Dave Airlie9-33/+29
git://people.freedesktop.org/~agd5f/linux into drm-fixes amd-drm-fixes-5.9-2020-09-17: amdgpu: - Sienna Cichlid fixes - Navy Flounder fixes - DC fixes amdkfd: - Fix a GPU reset crash - Fix a memory leak radeon: - Revert a PLL fix that broke other boards Signed-off-by: Dave Airlie <airlied@redhat.com> From: Alex Deucher <alexdeucher@gmail.com> Link: https://patchwork.freedesktop.org/patch/msgid/20200917043818.3717-1-alexander.deucher@amd.com
2020-09-18i2c: core: Call i2c_acpi_install_space_handler() before ↵Hans de Goede1-1/+1
i2c_acpi_register_devices() Some ACPI i2c-devices _STA method (which is used to detect if the device is present) use autodetection code which probes which device is present over i2c. This requires the I2C ACPI OpRegion handler to be registered before we enumerate i2c-clients under the i2c-adapter. This fixes the i2c touchpad on the Lenovo ThinkBook 14-IIL and ThinkBook 15 IIL not getting an i2c-client instantiated and thus not working. BugLink: https://bugzilla.redhat.com/show_bug.cgi?id=1842039 Signed-off-by: Hans de Goede <hdegoede@redhat.com> Reviewed-by: Mika Westerberg <mika.westerberg@linux.intel.com> Signed-off-by: Wolfram Sang <wsa@kernel.org>
2020-09-17usblp: fix race between disconnect() and read()Oliver Neukum1-0/+5
read() needs to check whether the device has been disconnected before it tries to talk to the device. Signed-off-by: Oliver Neukum <oneukum@suse.com> Reported-by: syzbot+be5b5f86a162a6c281e6@syzkaller.appspotmail.com Link: https://lore.kernel.org/r/20200917103427.15740-1-oneukum@suse.com Cc: stable <stable@vger.kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-09-17ehci-hcd: Move include to keep CRC stableQuentin Perret2-1/+1
The CRC calculation done by genksyms is triggered when the parser hits EXPORT_SYMBOL*() macros. At this point, genksyms recursively expands the types of the function parameters, and uses that as the input for the CRC calculation. In the case of forward-declared structs, the type expands to 'UNKNOWN'. Following this, it appears that the result of the expansion of each type is cached somewhere, and seems to be re-used when/if the same type is seen again for another exported symbol in the same C file. Unfortunately, this can cause CRC 'stability' issues when a struct definition becomes visible in the middle of a C file. For example, let's assume code with the following pattern: struct foo; int bar(struct foo *arg) { /* Do work ... */ } EXPORT_SYMBOL_GPL(bar); /* This contains struct foo's definition */ #include "foo.h" int baz(struct foo *arg) { /* Do more work ... */ } EXPORT_SYMBOL_GPL(baz); Here, baz's CRC will be computed using the expansion of struct foo that was cached after bar's CRC calculation ('UNKOWN' here). But if EXPORT_SYMBOL_GPL(bar) is removed from the file (because of e.g. symbol trimming using CONFIG_TRIM_UNUSED_KSYMS), struct foo will be expanded late, during baz's CRC calculation, which now has visibility over the full struct definition, hence resulting in a different CRC for baz. The proper fix for this certainly is in genksyms, but that will take me some time to get right. In the meantime, we have seen one occurrence of this in the ehci-hcd code which hits this problem because of the way it includes C files halfway through the code together with an unlucky mix of symbol trimming. In order to workaround this, move the include done in ehci-hub.c early in ehci-hcd.c, hence making sure the struct definitions are visible to the entire file. This improves CRC stability of the ehci-hcd exports even when symbol trimming is enabled. Acked-by: Alan Stern <stern@rowland.harvard.edu> Cc: stable <stable@vger.kernel.org> Signed-off-by: Quentin Perret <qperret@google.com> Link: https://lore.kernel.org/r/20200916171825.3228122-1-qperret@google.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-09-17drm/amd/display: Don't log hdcp module warnings in dmesgBhawanpreet Lakha1-1/+1
[Why] DTM topology updates happens by default now. This results in DTM warnings when hdcp is not even being enabled. This spams the dmesg and doesn't effect normal display functionality so it is better to log it using DRM_DEBUG_KMS() [How] Change the DRM_WARN() to DRM_DEBUG_KMS() Signed-off-by: Bhawanpreet Lakha <Bhawanpreet.Lakha@amd.com> Acked-by: Alex Deucher <alexander.deucher@amd.com> Reviewed-by: Rodrigo Siqueira <Rodrigo.Siqueira@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2020-09-17drm/amdgpu: declare ta firmware for navy_flounderJiansong Chen1-1/+1
The firmware provided via MODULE_FIRMWARE appears in the module information. External tools(eg. dracut) may use the list of fw files to include them as appropriate in an initramfs, thus missing declaration will lead to request firmware failure in boot time. Signed-off-by: Jiansong Chen <Jiansong.Chen@amd.com> Reviewed-by: Tianci Yin <tianci.yin@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2020-09-17drm/mediatek: Add missing put_device() call in mtk_hdmi_dt_parse_pdata()Yu Kuai1-8/+18
if of_find_device_by_node() succeed, mtk_drm_kms_init() doesn't have a corresponding put_device(). Thus add jump target to fix the exception handling for this function implementation. Fixes: 8f83f26891e1 ("drm/mediatek: Add HDMI support") Signed-off-by: Yu Kuai <yukuai3@huawei.com> Signed-off-by: Chun-Kuang Hu <chunkuang.hu@kernel.org>
2020-09-17drm/mediatek: Add missing put_device() call in mtk_drm_kms_init()Yu Kuai1-4/+7
if of_find_device_by_node() succeed, mtk_drm_kms_init() doesn't have a corresponding put_device(). Thus add jump target to fix the exception handling for this function implementation. Fixes: 119f5173628a ("drm/mediatek: Add DRM Driver for Mediatek SoC MT8173.") Signed-off-by: Yu Kuai <yukuai3@huawei.com> Signed-off-by: Chun-Kuang Hu <chunkuang.hu@kernel.org>
2020-09-17drm/mediatek: Add exception handing in mtk_drm_probe() if component init failYu Kuai1-1/+6
mtk_ddp_comp_init() is called in a loop in mtk_drm_probe(), if it fail, previous successive init component is not proccessed. Thus uninitialize valid component and put their device if component init failed. Fixes: 119f5173628a ("drm/mediatek: Add DRM Driver for Mediatek SoC MT8173.") Signed-off-by: Yu Kuai <yukuai3@huawei.com> Signed-off-by: Chun-Kuang Hu <chunkuang.hu@kernel.org>
2020-09-17drm/mediatek: Add missing put_device() call in mtk_ddp_comp_init()Yu Kuai1-0/+1
if of_find_device_by_node() succeed, mtk_ddp_comp_init() doesn't have a corresponding put_device(). Thus add put_device() to fix the exception handling for this function implementation. Fixes: d0afe37f5209 ("drm/mediatek: support CMDQ interface in ddp component") Signed-off-by: Yu Kuai <yukuai3@huawei.com> Signed-off-by: Chun-Kuang Hu <chunkuang.hu@kernel.org>
2020-09-17drm/mediatek: Use CPU when fail to get cmdq eventChun-Kuang Hu1-7/+13
Even though cmdq client is created successfully, without the cmdq event, cmdq could not work correctly, so use CPU when fail to get cmdq event. Fixes: 60fa8c13ab1a ("drm/mediatek: Move gce event property to mutex device node") Signed-off-by: Chun-Kuang Hu <chunkuang.hu@kernel.org>
2020-09-17drm/mediatek: Remove duplicated includeWang Hai1-1/+0
Remove mtk_drm_ddp.h which is included more than once Fixes: 9aef5867c86c ("drm/mediatek: drop use of drmP.h") Reported-by: Hulk Robot <hulkci@huawei.com> Signed-off-by: Wang Hai <wanghai38@huawei.com> Signed-off-by: Chun-Kuang Hu <chunkuang.hu@kernel.org>
2020-09-16Merge tag 'clk-fixes-for-linus' of ↵Linus Torvalds5-6/+10
git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux Pull clk driver fixes from Stephen Boyd: "A handful of clk driver fixes. Mostly they're for error paths or improper memory allocations sizes. Nothing as exciting as a wildfire" * tag 'clk-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux: clk: qcom: lpass: Correct goto target in lpass_core_sc7180_probe() clk: versatile: Add of_node_put() before return statement clk: bcm: dvp: Select the reset framework clk: rockchip: Fix initialization of mux_pll_src_4plls_p clk: davinci: Use the correct size when allocating memory
2020-09-16ACPI: processor: Take over RCU-idle for C3-BM idlePeter Zijlstra1-20/+49
The C3 BusMaster idle code takes lock in a number of places, some deep inside the ACPI code. Instead of wrapping it all in RCU_NONIDLE, have the driver take over RCU-idle duty and avoid flipping RCU state back and forth a lot. ( by marking 'C3 && bm_check' as RCU_IDLE, we _must_ call enter_bm() for that combination, otherwise we'll loose RCU-idle, this requires shuffling some code around ) Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Tested-by: Borislav Petkov <bp@suse.de> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2020-09-16cpuidle: Allow cpuidle drivers to take over RCU-idlePeter Zijlstra1-5/+10
Some drivers have to do significant work, some of which relies on RCU still being active. Instead of using RCU_NONIDLE in the drivers and flipping RCU back on, allow drivers to take over RCU-idle duty. Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Reviewed-by: Ulf Hansson <ulf.hansson@linaro.org> Tested-by: Borislav Petkov <bp@suse.de> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2020-09-16ACPI: processor: Use CPUIDLE_FLAG_TLB_FLUSHEDPeter Zijlstra1-5/+5
Make acpi_processor_idle() use the generic TLB flushing code. This again removes RCU usage after rcu_idle_enter(). (XXX make every C3 invalidate TLBs, not just C3-BM) Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Tested-by: Borislav Petkov <bp@suse.de> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2020-09-16ACPI: processor: Use CPUIDLE_FLAG_TIMER_STOPPeter Zijlstra1-32/+15
Make acpi_processor_idle use the common broadcast code, there's no reason not to. This also removes some RCU usage after rcu_idle_enter(). Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Reported-by: Borislav Petkov <bp@suse.de> Tested-by: Borislav Petkov <bp@suse.de> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2020-09-16fbcon: Fix user font detection test at fbcon_resize().Tetsuo Handa1-1/+1
syzbot is reporting OOB read at fbcon_resize() [1], for commit 39b3cffb8cf31117 ("fbcon: prevent user font height or width change from causing potential out-of-bounds access") is by error using registered_fb[con2fb_map[vc->vc_num]]->fbcon_par->p->userfont (which was set to non-zero) instead of fb_display[vc->vc_num].userfont (which remains zero for that display). We could remove tricky userfont flag [2], for we can determine it by comparing address of the font data and addresses of built-in font data. But since that commit is failing to fix the original OOB read [3], this patch keeps the change minimal in case we decide to revert altogether. [1] https://syzkaller.appspot.com/bug?id=ebcbbb6576958a496500fee9cf7aa83ea00b5920 [2] https://syzkaller.appspot.com/text?tag=Patch&x=14030853900000 [3] https://syzkaller.appspot.com/bug?id=6fba8c186d97cf1011ab17660e633b1cc4e080c9 Reported-by: syzbot <syzbot+b38b1ef6edf0c74a8d97@syzkaller.appspotmail.com> Signed-off-by: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp> Fixes: 39b3cffb8cf31117 ("fbcon: prevent user font height or width change from causing potential out-of-bounds access") Cc: George Kennedy <george.kennedy@oracle.com> Link: https://lore.kernel.org/r/f6e3e611-8704-1263-d163-f52c906a4f06@I-love.SAKURA.ne.jp Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-09-16powercap: RAPL: Add support for LakefieldRicardo Neri1-0/+1
Simply add Lakefield model ID. No additional changes are needed. Signed-off-by: Ricardo Neri <ricardo.neri-calderon@linux.intel.com> [ rjw: Minor subject edit ] Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2020-09-16serial: 8250_pci: Add Realtek 816a and 816bTobias Diedrich1-0/+11
These serial ports are exposed by the OOB-management-engine on RealManage-enabled network cards (e.g. AMD DASH enabled systems using Realtek cards). Because these have 3 BARs, they fail the "num_iomem <= 1" check in serial_pci_guess_board. I've manually checked the two IOMEM regions and BAR 2 doesn't seem to respond to reads, but BAR 4 seems to be an MMIO version of the IO ports (untested). With this change, the ports are detected: 0000:02:00.1: ttyS0 at I/O 0x2200 (irq = 82, base_baud = 115200) is a 16550A 0000:02:00.2: ttyS1 at I/O 0x2100 (irq = 55, base_baud = 115200) is a 16550A lspci output: 02:00.1 0700: 10ec:816a (rev 0e) (prog-if 02 [16550]) Subsystem: 17aa:5082 Control: I/O+ Mem+ BusMaster- SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx- Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort+ <TAbort- <MAbort- >SERR- <PERR- INTx- Interrupt: pin B routed to IRQ 82 IOMMU group: 11 Region 0: I/O ports at 2200 [size=256] Region 2: Memory at fd715000 (64-bit, non-prefetchable) [size=4K] Region 4: Memory at fd704000 (64-bit, non-prefetchable) [size=16K] Capabilities: [40] Power Management version 3 Flags: PMEClk- DSI- D1+ D2+ AuxCurrent=375mA PME(D0+,D1+,D2+,D3hot+,D3cold+) Status: D0 NoSoftRst+ PME-Enable- DSel=0 DScale=0 PME- Capabilities: [50] MSI: Enable- Count=1/1 Maskable- 64bit+ Address: 0000000000000000 Data: 0000 Capabilities: [70] Express (v2) Endpoint, MSI 01 DevCap: MaxPayload 128 bytes, PhantFunc 0, Latency L0s unlimited, L1 <64us ExtTag- AttnBtn- AttnInd- PwrInd- RBE+ FLReset- SlotPowerLimit 0.000W DevCtl: CorrErr- NonFatalErr- FatalErr- UnsupReq- RlxdOrd+ ExtTag- PhantFunc- AuxPwr- NoSnoop- MaxPayload 128 bytes, MaxReadReq 512 bytes DevSta: CorrErr+ NonFatalErr- FatalErr- UnsupReq+ AuxPwr+ TransPend- LnkCap: Port #0, Speed 2.5GT/s, Width x1, ASPM L0s L1, Exit Latency L0s unlimited, L1 <64us ClockPM+ Surprise- LLActRep- BwNot- ASPMOptComp+ LnkCtl: ASPM L1 Enabled; RCB 64 bytes, Disabled- CommClk+ ExtSynch- ClockPM- AutWidDis- BWInt- AutBWInt- LnkSta: Speed 2.5GT/s (ok), Width x1 (ok) TrErr- Train- SlotClk+ DLActive- BWMgmt- ABWMgmt- DevCap2: Completion Timeout: Range ABCD, TimeoutDis+ NROPrPrP- LTR+ 10BitTagComp- 10BitTagReq- OBFF Via message/WAKE#, ExtFmt- EETLPPrefix- EmergencyPowerReduction Not Supported, EmergencyPowerReductionInit- FRS- TPHComp- ExtTPHComp- AtomicOpsCap: 32bit- 64bit- 128bitCAS- DevCtl2: Completion Timeout: 50us to 50ms, TimeoutDis- LTR- OBFF Disabled, AtomicOpsCtl: ReqEn- LnkSta2: Current De-emphasis Level: -6dB, EqualizationComplete- EqualizationPhase1- EqualizationPhase2- EqualizationPhase3- LinkEqualizationRequest- Retimer- 2Retimers- CrosslinkRes: unsupported Capabilities: [b0] MSI-X: Enable- Count=4 Masked- Vector table: BAR=4 offset=00000000 PBA: BAR=4 offset=00000800 Capabilities: [d0] Vital Product Data Not readable Capabilities: [100 v2] Advanced Error Reporting UESta: DLP- SDES- TLP- FCP- CmpltTO- CmpltAbrt- UnxCmplt- RxOF- MalfTLP- ECRC- UnsupReq- ACSViol- UEMsk: DLP- SDES- TLP- FCP- CmpltTO- CmpltAbrt- UnxCmplt- RxOF- MalfTLP- ECRC- UnsupReq- ACSViol- UESvrt: DLP+ SDES+ TLP- FCP+ CmpltTO- CmpltAbrt- UnxCmplt- RxOF+ MalfTLP+ ECRC- UnsupReq- ACSViol- CESta: RxErr- BadTLP- BadDLLP- Rollover- Timeout- AdvNonFatalErr+ CEMsk: RxErr- BadTLP- BadDLLP- Rollover- Timeout- AdvNonFatalErr+ AERCap: First Error Pointer: 00, ECRCGenCap+ ECRCGenEn- ECRCChkCap+ ECRCChkEn- MultHdrRecCap- MultHdrRecEn- TLPPfxPres- HdrLogCap- HeaderLog: 00000000 00000000 00000000 00000000 Capabilities: [160 v1] Device Serial Number 00-00-00-00-00-00-00-00 Capabilities: [170 v1] Latency Tolerance Reporting Max snoop latency: 0ns Max no snoop latency: 0ns Capabilities: [178 v1] L1 PM Substates L1SubCap: PCI-PM_L1.2+ PCI-PM_L1.1+ ASPM_L1.2+ ASPM_L1.1+ L1_PM_Substates+ PortCommonModeRestoreTime=150us PortTPowerOnTime=150us L1SubCtl1: PCI-PM_L1.2- PCI-PM_L1.1- ASPM_L1.2- ASPM_L1.1- T_CommonMode=0us LTR1.2_Threshold=0ns L1SubCtl2: T_PwrOn=10us 02:00.2 0700: 10ec:816b (rev 0e) [...same...] Signed-off-by: Tobias Diedrich <tobiasdiedrich@gmail.com> Cc: stable <stable@vger.kernel.org> Link: https://lore.kernel.org/r/20200914173628.GA22508@yamamaya.is-a-geek.org Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-09-16serial: core: fix console port-lock regressionJohan Hovold1-17/+15
Fix the port-lock initialisation regression introduced by commit a3cb39d258ef ("serial: core: Allow detach and attach serial device for console") by making sure that the lock is again initialised during console setup. The console may be registered before the serial controller has been probed in which case the port lock needs to be initialised during console setup by a call to uart_set_options(). The console-detach changes introduced a regression in several drivers by effectively removing that initialisation by not initialising the lock when the port is used as a console (which is always the case during console setup). Add back the early lock initialisation and instead use a new console-reinit flag to handle the case where a console is being re-attached through sysfs. The question whether the console-detach interface should have been added in the first place is left for another discussion. Note that the console-enabled check in uart_set_options() is not redundant because of kgdboc, which can end up reinitialising an already enabled console (see commit 42b6a1baa3ec ("serial_core: Don't re-initialize a previously initialized spinlock.")). Fixes: a3cb39d258ef ("serial: core: Allow detach and attach serial device for console") Cc: stable <stable@vger.kernel.org> # 5.7 Signed-off-by: Johan Hovold <johan@kernel.org> Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Link: https://lore.kernel.org/r/20200909143101.15389-3-johan@kernel.org Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-09-16serial: core: fix port-lock initialisationJohan Hovold1-8/+6
Commit f743061a85f5 ("serial: core: Initialise spin lock before use in uart_configure_port()") tried to work around a breakage introduced by commit a3cb39d258ef ("serial: core: Allow detach and attach serial device for console") by adding a second initialisation of the port lock when registering the port. As reported by the build robots [1], this doesn't really solve the regression introduced by the console-detach changes and also adds a second redundant initialisation of the lock for normal ports. Start cleaning up this mess by removing the redundant initialisation and making sure that the port lock is again initialised once-only for ports that aren't already in use as a console. [1] https://lore.kernel.org/r/20200802054852.GR23458@shao2-debian Fixes: f743061a85f5 ("serial: core: Initialise spin lock before use in uart_configure_port()") Fixes: a3cb39d258ef ("serial: core: Allow detach and attach serial device for console") Cc: stable <stable@vger.kernel.org> # 5.7 Signed-off-by: Johan Hovold <johan@kernel.org> Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Link: https://lore.kernel.org/r/20200909143101.15389-2-johan@kernel.org Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-09-16usb: typec: intel_pmc_mux: Handle SCU IPC error conditionsMadhusudanarao Amara1-3/+9
Check and return if there are errors. The response bits are valid only on no errors. Fixes: b7404a29cd3d ("usb: typec: intel_pmc_mux: Definitions for response status bits") Signed-off-by: Madhusudanarao Amara <madhusudanarao.amara@intel.com> Signed-off-by: Heikki Krogerus <heikki.krogerus@linux.intel.com> Link: https://lore.kernel.org/r/20200916091102.27118-4-heikki.krogerus@linux.intel.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-09-16USB: quirks: Add USB_QUIRK_IGNORE_REMOTE_WAKEUP quirk for BYD zhaoxin notebookPenghao1-0/+4
Add a USB_QUIRK_IGNORE_REMOTE_WAKEUP quirk for the BYD zhaoxin notebook. This notebook come with usb touchpad. And we would like to disable touchpad wakeup on this notebook by default. Signed-off-by: Penghao <penghao@uniontech.com> Cc: stable <stable@vger.kernel.org> Link: https://lore.kernel.org/r/20200907023026.28189-1-penghao@uniontech.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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