dri-devel February 2021

dri-devel@lists.freedesktop.org

314 participants
684 discussions

Re: [PATCH 05/13] kallsyms: refactor {,module_}kallsyms_on_each_symbol
by Petr Mladek 03 Feb '21

03 Feb '21

On Tue 2021-02-02 13:13:26, Christoph Hellwig wrote: > Require an explicit call to module_kallsyms_on_each_symbol to look > for symbols in modules instead of the call from kallsyms_on_each_symbol, > and acquire module_mutex inside of module_kallsyms_on_each_symbol instead > of leaving that up to the caller. Note that this slightly changes the > behavior for the livepatch code in that the symbols from vmlinux are not > iterated anymore if objname is set, but that actually is … [View More]

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[PATCH] drm/nouveau: remove set but not used variable ‘pdev’ in nouveau_bios_init
by Ye Bin 03 Feb '21

03 Feb '21

Fix follow warning: drivers/gpu/drm/nouveau/nouveau_bios.c:2086:18: warning: variable ‘pdev’ set but not used [-Wunused-but-set-variable] struct pci_dev *pdev; ^~~~ Reported-by: Hulk Robot <hulkci(a)huawei.com> Signed-off-by: Ye Bin <yebin10(a)huawei.com> --- drivers/gpu/drm/nouveau/nouveau_bios.c | 2 -- 1 file changed, 2 deletions(-) diff --git a/drivers/gpu/drm/nouveau/nouveau_bios.c b/drivers/gpu/drm/nouveau/nouveau_bios.c index 7cc683b8dc7a..e8c445eb1100 … [View More]

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[PATCH] drm/amdgpu: convert sysfs sprintf/snprintf family to sysfs_emit
by Jiapeng Chong 03 Feb '21

03 Feb '21

Fix the following coccicheck warning: ./drivers/gpu/drm/amd/amdgpu/amdgpu_device.c:207:8-16: WARNING: use scnprintf or sprintf. ./drivers/gpu/drm/amd/amdgpu/amdgpu_device.c:185:8-16: WARNING: use scnprintf or sprintf. ./drivers/gpu/drm/amd/amdgpu/amdgpu_device.c:163:8-16: WARNING: use scnprintf or sprintf. ./drivers/gpu/drm/amd/amdgpu/amdgpu_device.c:139:8-16: WARNING: use scnprintf or sprintf. Reported-by: Abaci Robot<abaci(a)linux.alibaba.com> Signed-off-by: Jiapeng Chong <… [View More]

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[PATCH v1] drm/qxl: do not run release if qxl failed to init
by Tong Zhang 03 Feb '21

03 Feb '21

if qxl_device_init() fail, drm device will not be registered, in this case, do not run qxl_drm_release() [ 5.258534] ================================================================== [ 5.258931] BUG: KASAN: user-memory-access in qxl_destroy_monitors_object+0x42/0xa0 [qxl] [ 5.259388] Write of size 8 at addr 00000000000014dc by task modprobe/95 [ 5.259754] [ 5.259842] CPU: 0 PID: 95 Comm: modprobe Not tainted 5.11.0-rc6-00007-g88bb507a74ea #62 [ 5.260309] Hardware name: QEMU … [View More]Standard PC (Q35 + ICH9, 2009), BIOS rel-1.13.0-48-gd9c812dda54 [ 5.260917] Call Trace: [ 5.261056] dump_stack+0x7d/0xa3 [ 5.261245] kasan_report.cold+0x10c/0x10e [ 5.261475] ? qxl_destroy_monitors_object+0x42/0xa0 [qxl] [ 5.261789] check_memory_region+0x17c/0x1e0 [ 5.262029] qxl_destroy_monitors_object+0x42/0xa0 [qxl] [ 5.262332] qxl_modeset_fini+0x9/0x20 [qxl] [ 5.262595] qxl_drm_release+0x22/0x30 [qxl] [ 5.262841] drm_dev_release+0x32/0x50 [ 5.263047] release_nodes+0x39e/0x410 [ 5.263253] ? devres_release+0x40/0x40 [ 5.263462] really_probe+0x2ea/0x420 [ 5.263664] driver_probe_device+0x6d/0xd0 [ 5.263888] device_driver_attach+0x82/0x90 [ 5.264116] ? device_driver_attach+0x90/0x90 [ 5.264353] __driver_attach+0x60/0x100 [ 5.264563] ? device_driver_attach+0x90/0x90 [ 5.264801] bus_for_each_dev+0xe1/0x140 [ 5.265014] ? subsys_dev_iter_exit+0x10/0x10 [ 5.265251] ? klist_node_init+0x61/0x80 [ 5.265464] bus_add_driver+0x254/0x2a0 [ 5.265673] driver_register+0xd3/0x150 [ 5.265882] ? 0xffffffffc0048000 [ 5.266064] do_one_initcall+0x84/0x250 [ 5.266274] ? trace_event_raw_event_initcall_finish+0x150/0x150 [ 5.266596] ? unpoison_range+0xf/0x30 [ 5.266801] ? ____kasan_kmalloc.constprop.0+0x84/0xa0 [ 5.267082] ? unpoison_range+0xf/0x30 [ 5.267287] ? unpoison_range+0xf/0x30 [ 5.267491] do_init_module+0xf8/0x350 [ 5.267697] load_module+0x3fe6/0x4340 [ 5.267902] ? vm_unmap_ram+0x1d0/0x1d0 [ 5.268115] ? module_frob_arch_sections+0x20/0x20 [ 5.268375] ? __do_sys_finit_module+0x108/0x170 [ 5.268624] __do_sys_finit_module+0x108/0x170 [ 5.268865] ? __ia32_sys_init_module+0x40/0x40 [ 5.269111] ? file_open_root+0x200/0x200 [ 5.269330] ? do_sys_open+0x85/0xe0 [ 5.269527] ? filp_open+0x50/0x50 [ 5.269714] ? exit_to_user_mode_prepare+0xfc/0x130 [ 5.269978] do_syscall_64+0x33/0x40 [ 5.270176] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 5.270450] RIP: 0033:0x7fa3f685bcf7 [ 5.270646] Code: 48 89 57 30 48 8b 04 24 48 89 47 38 e9 1d a0 02 00 48 89 f8 48 89 f7 48 89 d1 [ 5.271634] RSP: 002b:00007ffca83048d8 EFLAGS: 00000246 ORIG_RAX: 0000000000000139 [ 5.272037] RAX: ffffffffffffffda RBX: 0000000001e94a70 RCX: 00007fa3f685bcf7 [ 5.272416] RDX: 0000000000000000 RSI: 0000000001e939e0 RDI: 0000000000000003 [ 5.272794] RBP: 0000000000000003 R08: 0000000000000000 R09: 0000000000000001 [ 5.273171] R10: 00007fa3f68bf300 R11: 0000000000000246 R12: 0000000001e939e0 [ 5.273550] R13: 0000000000000000 R14: 0000000001e93bd0 R15: 0000000000000001 [ 5.273928] ================================================================== Signed-off-by: Tong Zhang <ztong0001(a)gmail.com> --- drivers/gpu/drm/qxl/qxl_drv.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/gpu/drm/qxl/qxl_drv.c b/drivers/gpu/drm/qxl/qxl_drv.c index 6e7f16f4cec7..41cdf9d1e59d 100644 --- a/drivers/gpu/drm/qxl/qxl_drv.c +++ b/drivers/gpu/drm/qxl/qxl_drv.c @@ -144,6 +144,8 @@ static void qxl_drm_release(struct drm_device *dev) * reodering qxl_modeset_fini() + qxl_device_fini() calls is * non-trivial though. */ + if (!dev->registered) + return; qxl_modeset_fini(qdev); qxl_device_fini(qdev); } -- 2.25.1 [View Less]

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[PATCH] video: udlfb: convert sysfs sprintf/snprintf family to sysfs_emit
by Jiapeng Chong 03 Feb '21

03 Feb '21

Fix the following coccicheck warning: ./drivers/video/fbdev/udlfb.c:1452:8-16: WARNING: use scnprintf or sprintf. ./drivers/video/fbdev/udlfb.c:1444:8-16: WARNING: use scnprintf or sprintf. ./drivers/video/fbdev/udlfb.c:1436:8-16: WARNING: use scnprintf or sprintf. ./drivers/video/fbdev/udlfb.c:1428:8-16: WARNING: use scnprintf or sprintf. Reported-by: Abaci Robot<abaci(a)linux.alibaba.com> Signed-off-by: Jiapeng Chong <jiapeng.chong(a)linux.alibaba.com> --- drivers/video/… [View More]

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[PATCH 2/3] fix the out-of-bounds access of dramsr13
by Wenjia Zhao 03 Feb '21

03 Feb '21

Signed-off-by: Wenjia Zhao <driverfuzzing(a)gmail.com> --- drivers/video/fbdev/sis/sis_main.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/video/fbdev/sis/sis_main.c b/drivers/video/fbdev/sis/sis_main.c index 03c736f..6774252 100644 --- a/drivers/video/fbdev/sis/sis_main.c +++ b/drivers/video/fbdev/sis/sis_main.c @@ -4834,7 +4834,7 @@ static int sisfb_post_xgi_ramsize(struct sis_video_info *ivideo) sisfb_post_xgi_delay(ivideo, 1); j = (ivideo->chip … [View More]

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[PATCH] drm/msm/dpu: remove unneeded semicolon
by Yang Li 03 Feb '21

03 Feb '21

Eliminate the following coccicheck warning: ./drivers/gpu/drm/msm/disp/dpu1/dpu_kms.c:752:2-3: Unneeded semicolon Reported-by: Abaci Robot <abaci(a)linux.alibaba.com> Signed-off-by: Yang Li <yang.lee(a)linux.alibaba.com> --- drivers/gpu/drm/msm/disp/dpu1/dpu_kms.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_kms.c b/drivers/gpu/drm/msm/disp/dpu1/dpu_kms.c index 374b0e8..5a8e3e1 100644 --- a/drivers/gpu/drm/msm/disp/dpu1/… [View More]

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[PATCH 0/5] Clock fixes for DSI 10nm PLL
by AngeloGioacchino Del Regno 02 Feb '21

02 Feb '21

The DSI 10nm PLL driver was apparently ported from downstream, but some of its "features" were not ported over, for a good reason. Pity is that the removal of the downstream dependencies broke the clock calculation logic for this driver and that made it impossible to use any DSI display on at least MSM8998. This patch series fixes the calculation issues and also solves some TODOs that I've found in this driver. Tested on: - Sony Xperia XZ Premium (MSM8998) dual-dsi command-mode LCD display - … [View More]

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(no subject)
by Juan Fernando Diosdado Ramirez 02 Feb '21

02 Feb '21

Ayuda

1 0

[PATCH 00/29] treewide: Convert comma separated statements
by Joe Perches 02 Feb '21

02 Feb '21

There are many comma separated statements in the kernel. See:https://lore.kernel.org/lkml/alpine.DEB.2.22.394.2008201856110.2524@had… Convert the comma separated statements that are in if/do/while blocks to use braces and semicolons. Many comma separated statements still exist but those are changes for another day. Joe Perches (29): coding-style.rst: Avoid comma statements alpha: Avoid comma separated statements ia64: Avoid comma separated statements sparc: Avoid comma separated … [View More]statements ata: Avoid comma separated statements drbd: Avoid comma separated statements lp: Avoid comma separated statements dma-buf: Avoid comma separated statements drm/gma500: Avoid comma separated statements drm/i915: Avoid comma separated statements hwmon: (scmi-hwmon): Avoid comma separated statements Input: MT - Avoid comma separated statements bcache: Avoid comma separated statements media: Avoid comma separated statements mtd: Avoid comma separated statements 8390: Avoid comma separated statements fs_enet: Avoid comma separated statements wan: sbni: Avoid comma separated statements s390/tty3270: Avoid comma separated statements scai/arm: Avoid comma separated statements media: atomisp: Avoid comma separated statements video: fbdev: Avoid comma separated statements fuse: Avoid comma separated statements reiserfs: Avoid comma separated statements lib/zlib: Avoid comma separated statements lib: zstd: Avoid comma separated statements ipv6: fib6: Avoid comma separated statements sunrpc: Avoid comma separated statements tools: Avoid comma separated statements Documentation/process/coding-style.rst | 17 + arch/alpha/kernel/pci_iommu.c | 8 +- arch/alpha/oprofile/op_model_ev4.c | 22 +- arch/alpha/oprofile/op_model_ev5.c | 8 +- arch/ia64/kernel/smpboot.c | 7 +- arch/sparc/kernel/smp_64.c | 7 +- drivers/ata/pata_icside.c | 21 +- drivers/block/drbd/drbd_receiver.c | 6 +- drivers/char/lp.c | 6 +- drivers/dma-buf/st-dma-fence.c | 7 +- drivers/gpu/drm/gma500/mdfld_intel_display.c | 44 ++- drivers/gpu/drm/i915/gt/gen8_ppgtt.c | 8 +- drivers/gpu/drm/i915/gt/intel_gt_requests.c | 6 +- .../gpu/drm/i915/gt/selftest_workarounds.c | 6 +- drivers/gpu/drm/i915/intel_runtime_pm.c | 6 +- drivers/hwmon/scmi-hwmon.c | 6 +- drivers/input/input-mt.c | 11 +- drivers/md/bcache/bset.c | 12 +- drivers/md/bcache/sysfs.c | 6 +- drivers/media/i2c/msp3400-kthreads.c | 12 +- drivers/media/pci/bt8xx/bttv-cards.c | 6 +- drivers/media/pci/saa7134/saa7134-video.c | 7 +- drivers/mtd/devices/lart.c | 10 +- drivers/net/ethernet/8390/axnet_cs.c | 19 +- drivers/net/ethernet/8390/lib8390.c | 14 +- drivers/net/ethernet/8390/pcnet_cs.c | 6 +- .../ethernet/freescale/fs_enet/fs_enet-main.c | 11 +- drivers/net/wan/sbni.c | 101 +++--- drivers/s390/char/tty3270.c | 6 +- drivers/scsi/arm/cumana_2.c | 19 +- drivers/scsi/arm/eesox.c | 9 +- drivers/scsi/arm/powertec.c | 9 +- .../media/atomisp/pci/atomisp_subdev.c | 6 +- drivers/video/fbdev/tgafb.c | 12 +- fs/fuse/dir.c | 24 +- fs/reiserfs/fix_node.c | 36 ++- lib/zlib_deflate/deftree.c | 49 ++- lib/zstd/compress.c | 120 ++++--- lib/zstd/fse_compress.c | 24 +- lib/zstd/huf_compress.c | 6 +- net/ipv6/ip6_fib.c | 12 +- net/sunrpc/sysctl.c | 6 +- tools/lib/subcmd/help.c | 10 +- tools/power/cpupower/utils/cpufreq-set.c | 14 +- tools/testing/selftests/vm/gup_benchmark.c | 18 +- tools/testing/selftests/vm/userfaultfd.c | 296 +++++++++++------- 46 files changed, 694 insertions(+), 382 deletions(-) -- 2.26.0 [View Less]

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dri-devel February 2021