- 06 Nov, 2019 1 commit
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Rob Clark authored
drm_self_refresh_helper_update_avg_times() was incorrectly accessing the new incoming state after drm_atomic_helper_commit_hw_done(). But this state might have already been superceeded by an !nonblock atomic update resulting in dereferencing an already free'd crtc_state. TODO I *think* this will more or less do the right thing.. althought I'm not 100% sure if, for example, we enter psr in a nonblock commit, and then leave psr in a !nonblock commit that overtakes the completion of the nonblock commit. Not sure if this sort of scenario can happen in practice. But not crashing is better than crashing, so I guess we should either take this patch or rever the self-refresh helpers until Sean can figure out a better solution. Fixes: d4da4e33 ("drm: Measure Self Refresh Entry/Exit times to avoid thrashing") Cc: Sean Paul <seanpaul@chromium.org> Signed-off-by:
Rob Clark <robdclark@chromium.org> [seanpaul fixed up some checkpatch warns] Signed-off-by:
Sean Paul <seanpaul@chromium.org> Link: https://patchwork.freedesktop.org/patch/msgid/20191104173737.142558-1-robdclark@gmail.com
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- 04 Nov, 2019 1 commit
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Geert Uytterhoeven authored
When the compiler decides not to inline the Chunky-to-Planar core functions, the build fails with: c2p_planar.c:(.text+0xd6): undefined reference to `c2p_unsupported' c2p_planar.c:(.text+0x1dc): undefined reference to `c2p_unsupported' c2p_iplan2.c:(.text+0xc4): undefined reference to `c2p_unsupported' c2p_iplan2.c:(.text+0x150): undefined reference to `c2p_unsupported' Fix this by marking the functions __always_inline. While this could be triggered before by manually enabling both CONFIG_OPTIMIZE_INLINING and CONFIG_CC_OPTIMIZE_FOR_SIZE, it was exposed in the m68k defconfig by commit ac7c3e4f ("compiler: enable CONFIG_OPTIMIZE_INLINING forcibly"). Fixes: 9012d011 ("compiler: allow all arches to enable CONFIG_OPTIMIZE_INLINING") Reported-by: noreply@ellerman.id.au Signed-off-by:Geert Uytterhoeven <geert@linux-m68k.org> Reviewed-by:
Masahiro Yamada <yamada.masahiro@socionext.com> Signed-off-by:
Daniel Vetter <daniel.vetter@ffwll.ch> Link: https://patchwork.freedesktop.org/patch/msgid/20190927094708.11563-1-geert@linux-m68k.org
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- 29 Oct, 2019 2 commits
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Robin Murphy authored
It seems that killing an application while faults are occurring (particularly with a GPU in FPGA at a whopping 40MHz) can lead to handling a lingering page fault after all the address space contexts have already been freed. In this situation, the LRU list is empty so addr_to_drm_mm_node() ends up dereferencing the list head as if it were a struct panfrost_mmu entry; this leaves "mmu->as" actually pointing at the pfdev->alloc_mask bitmap, which is also empty, and given that the fault has a high likelihood of being in AS0, hilarity ensues. Sadly, the cleanest solution seems to involve another goto. Oh well, at least it's robust... Fixes: 65e51e30 ("drm/panfrost: Prevent race when handling page fault") Signed-off-by:
Robin Murphy <robin.murphy@arm.com> Signed-off-by:
Rob Herring <robh@kernel.org> Link: https://patchwork.freedesktop.org/patch/msgid/9a0b09e6b5851f0d4428b72dd6b8b4c0d0ef4206.1572293305.git.robin.murphy@arm.com
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Yi Wang authored
We get these warnings when build kernel W=1: drivers/gpu/drm/panfrost/panfrost_perfcnt.c:35:6: warning: no previous prototype for ‘panfrost_perfcnt_clean_cache_done’ [-Wmissing-prototypes] drivers/gpu/drm/panfrost/panfrost_perfcnt.c:40:6: warning: no previous prototype for ‘panfrost_perfcnt_sample_done’ [-Wmissing-prototypes] drivers/gpu/drm/panfrost/panfrost_perfcnt.c:190:5: warning: no previous prototype for ‘panfrost_ioctl_perfcnt_enable’ [-Wmissing-prototypes] drivers/gpu/drm/panfrost/panfrost_perfcnt.c:218:5: warning: no previous prototype for ‘panfrost_ioctl_perfcnt_dump’ [-Wmissing-prototypes] drivers/gpu/drm/panfrost/panfrost_perfcnt.c:250:6: warning: no previous prototype for ‘panfrost_perfcnt_close’ [-Wmissing-prototypes] drivers/gpu/drm/panfrost/panfrost_perfcnt.c:264:5: warning: no previous prototype for ‘panfrost_perfcnt_init’ [-Wmissing-prototypes] drivers/gpu/drm/panfrost/panfrost_perfcnt.c:320:6: warning: no previous prototype for ‘panfrost_perfcnt_fini’ [-Wmissing-prototypes] drivers/gpu/drm/panfrost/panfrost_mmu.c:227:6: warning: no previous prototype for ‘panfrost_mmu_flush_range’ [-Wmissing-prototypes] drivers/gpu/drm/panfrost/panfrost_mmu.c:435:5: warning: no previous prototype for ‘panfrost_mmu_map_fault_addr’ [-Wmissing-prototypes] For file panfrost_mmu.c, make functions static to fix this. For file panfrost_perfcnt.c, include header file can fix this. Signed-off-by:
Yi Wang <wang.yi59@zte.com.cn> Reviewed-by:
Steven Price <steven.price@arm.com> Cc: stable@vger.kernel.org [robh: fixup function parameter alignment] Signed-off-by:
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- 23 Oct, 2019 2 commits
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Navid Emamdoost authored
In the impelementation of v3d_submit_cl_ioctl() there are two memory leaks. One is when allocation for bin fails, and the other is when bin initialization fails. If kcalloc fails to allocate memory for bin then render->base should be put. Also, if v3d_job_init() fails to initialize bin->base then allocated memory for bin should be released. Fixes: a783a09e ("drm/v3d: Refactor job management.") Signed-off-by:
Navid Emamdoost <navid.emamdoost@gmail.com> Reviewed-by:
Eric Anholt <eric@anholt.net> Signed-off-by:
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Tomeu Vizoso authored
When deferring the probe because of a missing regulator, we were calling pm_runtime_disable even if pm_runtime_enable wasn't called. Move the call to pm_runtime_disable to the right place. Fixes: 63543079 ("drm/panfrost: Rework runtime PM initialization") Reported-by:
Chen-Yu Tsai <wens@csie.org> Cc: Robin Murphy <robin.murphy@arm.com> Signed-off-by:
Tomeu Vizoso <tomeu.vizoso@collabora.com> Reviewed-by:
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- 21 Oct, 2019 2 commits
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Mihail Atanassov authored
Fix both the string and the struct member being printed. Changes since v1: - Now with a bonus grammar fix, too. Fixes: 264b9436 ("drm/komeda: Enable writeback split support") Reviewed-by:
James Qian Wang (Arm Technology China) <james.qian.wang@arm.com> Signed-off-by:
Mihail Atanassov <mihail.atanassov@arm.com> Link: https://patchwork.freedesktop.org/patch/msgid/20190930122231.33029-1-mihail.atanassov@arm.com
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Mihail Atanassov authored
HW doesn't allow flushing inactive pipes and raises an MERR interrupt if you try to do so. Stop triggering the MERR interrupt in the middle of a commit by calling drm_atomic_helper_commit_planes with the ACTIVE_ONLY flag. Reviewed-by:
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- 15 Oct, 2019 1 commit
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Steven Price authored
Panfrost uses multiple schedulers (one for each slot, so 2 in reality), and on a timeout has to stop all the schedulers to safely perform a reset. However more than one scheduler can trigger a timeout at the same time. This race condition results in jobs being freed while they are still in use. When stopping other slots use cancel_delayed_work_sync() to ensure that any timeout started for that slot has completed. Also use mutex_trylock() to obtain reset_lock. This means that only one thread attempts the reset, the other threads will simply complete without doing anything (the first thread will wait for this in the call to cancel_delayed_work_sync()). While we're here and since the function is already dependent on sched_job not being NULL, let's remove the unnecessary checks. Fixes: aa202367 ("drm/panfrost: Prevent concurrent resets") Tested-by:
Neil Armstrong <narmstrong@baylibre.com> Signed-off-by:
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- 14 Oct, 2019 4 commits
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Steven Price authored
Three feature registers were declared but never actually read from the GPU. Add THREAD_MAX_THREADS, THREAD_MAX_WORKGROUP_SIZE and THREAD_MAX_BARRIER_SIZE so that the complete set are available. Fixes: 4bced8be ("drm/panfrost: Export all GPU feature registers") Signed-off-by:
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Christian König authored
We should not add the BO to the swap LRU when the new mem is fixed and the TTM object about to be destroyed. Signed-off-by:
Christian König <christian.koenig@amd.com> Reviewed-by:
Kevin Wang <kevin1.wang@amd.com> Link: https://patchwork.freedesktop.org/patch/335246/
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Thomas Hellstrom authored
Commit 4daa4fba ("gpu: drm: ttm: Adding new return type vm_fault_t") broke TTM prefaulting. Since vmf_insert_mixed() typically always returns VM_FAULT_NOPAGE, prefaulting stops after the second PTE. Restore (almost) the original behaviour. Unfortunately we can no longer with the new vm_fault_t return type determine whether a prefaulting PTE insertion hit an already populated PTE, and terminate the insertion loop. Instead we continue with the pre-determined number of prefaults. Fixes: 4daa4fba ("gpu: drm: ttm: Adding new return type vm_fault_t") Cc: Souptick Joarder <jrdr.linux@gmail.com> Cc: Christian König <christian.koenig@amd.com> Signed-off-by:
Thomas Hellstrom <thellstrom@vmware.com> Reviewed-by:
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Christian König authored
The busy BO might actually be already deleted, so grab only a list reference. Signed-off-by:
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- 11 Oct, 2019 1 commit
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Jeffrey Hugo authored
On msm8998, vblank timeouts are observed because the DSI controller is not reset properly, which ends up stalling the MDP. This is because the reset logic is not correct per the hardware documentation. The documentation states that after asserting reset, software should wait some time (no indication of how long), or poll the status register until it returns 0 before deasserting reset. wmb() is insufficient for this purpose since it just ensures ordering, not timing between writes. Since asserting and deasserting reset occurs on the same register, ordering is already guaranteed by the architecture, making the wmb extraneous. Since we would define a timeout for polling the status register to avoid a possible infinite loop, lets just use a static delay of 20 ms, since 16.666 ms is the time available to process one frame at 60 fps. Fixes: a689554b ("drm/msm: Initial add DSI connector support") Cc: Hai Li <hali@codeaurora.org> Cc: Rob Clark <robdclark@gmail.com> Signed-off-by:
Jeffrey Hugo <jeffrey.l.hugo@gmail.com> Reviewed-by:
Sean Paul <sean@poorly.run> [seanpaul renamed RESET_DELAY to DSI_RESET_TOGGLE_DELAY_MS] Signed-off-by:
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- 10 Oct, 2019 4 commits
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Qiang Yu authored
This causes kernel crash when testing lima driver. Cc: Christian König <christian.koenig@amd.com> Fixes: b8c036df ("dma-buf: simplify reservation_object_get_fences_rcu a bit") Signed-off-by:
Qiang Yu <yuq825@gmail.com> Reviewed-by:
Chris Wilson <chris@chris-wilson.co.uk> Signed-off-by:
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Kai-Heng Feng authored
Another panel that needs 6BPC quirk. BugLink: https://bugs.launchpad.net/bugs/1819968 Cc: <stable@vger.kernel.org> # v4.8+ Reviewed-by:
Alex Deucher <alexander.deucher@amd.com> Signed-off-by:
Kai-Heng Feng <kai.heng.feng@canonical.com> Signed-off-by:
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Ulf Magnusson authored
[cherry-picked to drm-misc-fixes: drm-misc-next commit dfef9598] Commit 554b3529 ("thermal/drivers/core: Remove the module Kconfig's option") changed the type of THERMAL from tristate to bool, so THERMAL || !THERMAL is now always y. Remove the redundant dependency. Discovered through Kconfiglib detecting a dependency loop. The C tools simplify the expression to y before running dependency loop detection, and so don't see it. Changing the type of THERMAL back to tristate makes the C tools detect the same loop. Not sure if running dep. loop detection after simplification can be called a bug. Fixing this nit unbreaks Kconfiglib on the kernel at least. Signed-off-by:
Ulf Magnusson <ulfalizer@gmail.com> Signed-off-by:
Noralf Trønnes <noralf@tronnes.org> Link: https://patchwork.freedesktop.org/patch/msgid/20190927174218.GA32085@huvuddator
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Tomi Valkeinen authored
max_tu_symbol was programmed to TU_SIZE_RECOMMENDED - 1, which is not what the spec says. The spec says: roundup ((input active video bandwidth in bytes/output active video bandwidth in bytes) * tu_size) It is not quite clear what the above means, but calculating max_tu_symbol = (input Bps / output Bps) * tu_size seems to work and fixes the issues seen. This fixes artifacts in some videomodes (e.g. 1024x768@60 on 2-lanes & 1.62Gbps was pretty bad for me). Signed-off-by:
Tomi Valkeinen <tomi.valkeinen@ti.com> Tested-by:
Jyri Sarha <jsarha@ti.com> Signed-off-by:
Andrzej Hajda <a.hajda@samsung.com> Link: https://patchwork.freedesktop.org/patch/msgid/20190924131702.9988-1-tomi.valkeinen@ti.com
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- 08 Oct, 2019 5 commits
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Laurent Pinchart authored
The panel-tpo-td043mtea1 driver incorrectly includes the OF vendor prefix in its SPI alias. Fix it, and move the manual alias to an SPI module device table. Fixes: dc2e1e5b ("drm/panel: Add driver for the Toppoly TD043MTEA1 panel") Reported-by:
H. Nikolaus Schaller <hns@goldelico.com> Signed-off-by:
Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by:
Sam Ravnborg <sam@ravnborg.org> Reviewed-by:
Sebastian Reichel <sebastian.reichel@collabora.com> Tested-by:
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Laurent Pinchart authored
The panel-tpo-td028ttec1 driver incorrectly includes the OF vendor prefix in its SPI alias. Fix it. Fixes: 415b8dd0 ("drm/panel: Add driver for the Toppoly TD028TTEC1 panel") Reported-by:
Andreas Kemnade <andreas@kemnade.info>
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Laurent Pinchart authored
The panel-sony-acx565akm driver incorrectly includes the OF vendor prefix in its SPI alias. Fix it, and move the manual alias to an SPI module device table. Fixes: 1c8fc3f0 ("drm/panel: Add driver for the Sony ACX565AKM panel") Reported-by:
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Laurent Pinchart authored
The panel-nec-nl8048hl11 driver incorrectly includes the OF vendor prefix in its SPI alias. Fix it, and move the manual alias to an SPI module device table. Fixes: df439abe ("drm/panel: Add driver for the NEC NL8048HL11 panel") Reported-by:
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Laurent Pinchart authored
The panel-lg-lb035q02 driver incorrectly includes the OF vendor prefix in its SPI alias. Fix it, and move the manual alias to an SPI module device table. Fixes: f5b0c654 ("drm/panel: Add driver for the LG Philips LB035Q02 panel") Reported-by:
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- 03 Oct, 2019 3 commits
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Maxime Ripard authored
One tilcdc fix was left out in drm-misc-next-fixes and didn't make it during the merge window. Let's bring it into drm-misc-fixes. Signed-off-by:Maxime Ripard <mripard@kernel.org>
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Maxime Ripard authored
We haven't backmerged for a while, let's start the -rc period by pulling rc1. Signed-off-by: -
Tomi Valkeinen authored
The OMAP36xx and AM/DM37x TRMs say that the maximum divider for DSS fclk (in CM_CLKSEL_DSS) is 32. Experimentation shows that this is not correct, and using divider of 32 breaks DSS with a flood or underflows and sync losts. Dividers up to 31 seem to work fine. There is another patch to the DT files to limit the divider correctly, but as the DSS driver also needs to know the maximum divider to be able to iteratively find good rates, we also need to do the fix in the DSS driver. Signed-off-by:
Adam Ford <aford173@gmail.com> Reviewed-by:
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- 30 Sep, 2019 14 commits
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Linus Torvalds authored
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git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linuxLinus Torvalds authored
Pull btrfs fixes from David Sterba: "A bunch of fixes that accumulated in recent weeks, mostly material for stable. Summary: - fix for regression from 5.3 that prevents to use balance convert with single profile - qgroup fixes: rescan race, accounting leak with multiple writers, potential leak after io failure recovery - fix for use after free in relocation (reported by KASAN) - other error handling fixups" * tag 'for-5.4-rc1-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux: btrfs: qgroup: Fix reserved data space leak if we have multiple reserve calls btrfs: qgroup: Fix the wrong target io_tree when freeing reserved data space btrfs: Fix a regression which we can't convert to SINGLE profile btrfs: relocation: fix use-after-free on dead relocation roots Btrfs: fix race setting up and completing qgroup rescan workers Btrfs: fix missing error return if writeback for extent buffer never started btrfs: adjust dirty_metadata_bytes after writeback failure of extent buffer Btrfs: fix selftests failure due to uninitialized i_mode in test inodes -
git://github.com/c-sky/csky-linuxLinus Torvalds authored
Pull csky updates from Guo Ren: "This round of csky subsystem just some fixups: - Fix mb() synchronization problem - Fix dma_alloc_coherent with PAGE_SO attribute - Fix cache_op failed when cross memory ZONEs - Optimize arch_sync_dma_for_cpu/device with dma_inv_range - Fix ioremap function losing - Fix arch_get_unmapped_area() implementation - Fix defer cache flush for 610 - Support kernel non-aligned access - Fix 610 vipt cache flush mechanism - Fix add zero_fp fixup perf backtrace panic - Move static keyword to the front of declaration - Fix csky_pmu.max_period assignment - Use generic free_initrd_mem() - entry: Remove unneeded need_resched() loop" * tag 'csky-for-linus-5.4-rc1' of git://github.com/c-sky/csky-linux: csky: Move static keyword to the front of declaration csky: entry: Remove unneeded need_resched() loop csky: Fixup csky_pmu.max_period assignment csky: Fixup add zero_fp fixup perf backtrace panic csky: Use generic free_initrd_mem() csky: Fixup 610 vipt cache flush mechanism csky: Support kernel non-aligned access csky: Fixup defer cache flush for 610 csky: Fixup arch_get_unmapped_area() implementation csky: Fixup ioremap function losing csky: Optimize arch_sync_dma_for_cpu/device with dma_inv_range csky/dma: Fixup cache_op failed when cross memory ZONEs csky: Fixup dma_alloc_coherent with PAGE_SO attribute csky: Fixup mb() synchronization problem
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git://git.kernel.org/pub/scm/linux/kernel/git/soc/socLinus Torvalds authored
Pull ARM SoC fixes from Olof Johansson: "A few fixes that have trickled in through the merge window: - Video fixes for OMAP due to panel-dpi driver removal - Clock fixes for OMAP that broke no-idle quirks + nfsroot on DRA7 - Fixing arch version on ASpeed ast2500 - Two fixes for reset handling on ARM SCMI" * tag 'armsoc-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc: ARM: aspeed: ast2500 is ARMv6K reset: reset-scmi: add missing handle initialisation firmware: arm_scmi: reset: fix reset_state assignment in scmi_domain_reset bus: ti-sysc: Remove unpaired sysc_clkdm_deny_idle() ARM: dts: logicpd-som-lv: Fix i2c2 and i2c3 Pin mux ARM: dts: am3517-evm: Fix missing video ARM: dts: logicpd-torpedo-baseboard: Fix missing video ARM: omap2plus_defconfig: Fix missing video bus: ti-sysc: Fix handling of invalid clocks bus: ti-sysc: Fix clock handling for no-idle quirks
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git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-traceLinus Torvalds authored
Pull tracing fixes from Steven Rostedt: "A few more tracing fixes: - Fix a buffer overflow by checking nr_args correctly in probes - Fix a warning that is reported by clang - Fix a possible memory leak in error path of filter processing - Fix the selftest that checks for failures, but wasn't failing - Minor clean up on call site output of a memory trace event" * tag 'trace-v5.4-3' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace: selftests/ftrace: Fix same probe error test mm, tracing: Print symbol name for call_site in trace events tracing: Have error path in predicate_parse() free its allocated memory tracing: Fix clang -Wint-in-bool-context warnings in IF_ASSIGN macro tracing/probe: Fix to check the difference of nr_args before adding probe
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Arnd Bergmann authored
This was apparently dropped by accident in a recent cleanup, causing a build failure in some configurations now: drivers/gpu/drm/tilcdc/tilcdc_tfp410.c:296:12: error: implicit declaration of function 'devm_pinctrl_get_select_default' [-Werror,-Wimplicit-function-declaration] Fixes: fcb57664 ("drm/tilcdc: drop use of drmP.h") Signed-off-by:
Arnd Bergmann <arnd@arndb.de> Reviewed-by:
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git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/mmcLinus Torvalds authored
Pull more MMC updates from Ulf Hansson: "A couple more updates/fixes for MMC: - sdhci-pci: Add Genesys Logic GL975x support - sdhci-tegra: Recover loss in throughput for DMA - sdhci-of-esdhc: Fix DMA bug" * tag 'mmc-v5.4-2' of git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/mmc: mmc: host: sdhci-pci: Add Genesys Logic GL975x support mmc: tegra: Implement ->set_dma_mask() mmc: sdhci: Let drivers define their DMA mask mmc: sdhci-of-esdhc: set DMA snooping based on DMA coherence mmc: sdhci: improve ADMA error reporting
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Krzysztof Wilczynski authored
Move the static keyword to the front of declaration of csky_pmu_of_device_ids, and resolve the following compiler warning that can be seen when building with warnings enabled (W=1): arch/csky/kernel/perf_event.c:1340:1: warning: ‘static’ is not at beginning of declaration [-Wold-style-declaration] Signed-off-by:
Krzysztof Wilczynski <kw@linux.com> Signed-off-by:
Guo Ren <guoren@kernel.org>
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Valentin Schneider authored
Since the enabling and disabling of IRQs within preempt_schedule_irq() is contained in a need_resched() loop, we don't need the outer arch code loop. Signed-off-by:
Valentin Schneider <valentin.schneider@arm.com> Signed-off-by:
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git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-miscLinus Torvalds authored
Pull Documentation/process update from Greg KH: "Here are two small Documentation/process/embargoed-hardware-issues.rst file updates that missed my previous char/misc pull request. The first one adds an Intel representative for the process, and the second one cleans up the text a bit more when it comes to how the disclosure rules work, as it was a bit confusing to some companies" * tag 'char-misc-5.4-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc: Documentation/process: Clarify disclosure rules Documentation/process: Volunteer as the ambassador for Intel
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git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfsLinus Torvalds authored
Pull more vfs updates from Al Viro: "A couple of misc patches" * 'work.misc' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs: afs dynroot: switch to simple_dir_operations fs/handle.c - fix up kerneldoc
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git://git.samba.org/sfrench/cifs-2.6Linus Torvalds authored
Pull more cifs updates from Steve French: "Fixes from the recent SMB3 Test events and Storage Developer Conference (held the last two weeks). Here are nine smb3 patches including an important patch for debugging traces with wireshark, with three patches marked for stable. Additional fixes from last week to better handle some newly discovered reparse points, and a fix the create/mkdir path for setting the mode more atomically (in SMB3 Create security descriptor context), and one for path name processing are still being tested so are not included here" * tag '5.4-rc-smb3-fixes' of git://git.samba.org/sfrench/cifs-2.6: CIFS: Fix oplock handling for SMB 2.1+ protocols smb3: missing ACL related flags smb3: pass mode bits into create calls smb3: Add missing reparse tags CIFS: fix max ea value size fs/cifs/sess.c: Remove set but not used variable 'capabilities' fs/cifs/smb2pdu.c: Make SMB2_notify_init static smb3: fix leak in "open on server" perf counter smb3: allow decryption keys to be dumped by admin for debugging
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Mao Han authored
The csky_pmu.max_period has type u64, and BIT() can only return 32 bits unsigned long on C-SKY. The initialization for max_period will be incorrect when count_width is bigger than 32. Use BIT_ULL() Signed-off-by:
Mao Han <han_mao@c-sky.com> Signed-off-by:
Guo Ren <ren_guo@c-sky.com>
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Guo Ren authored
We need set fp zero to let backtrace know the end. The patch fixup perf callchain panic problem, because backtrace didn't know what is the end of fp. Signed-off-by:
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