May 2021 - Linux-stable-mirror

patch "iio: adc: ad7192: Avoid disabling a clock that was never enabled." added to staging-linus

by gregkh＠linuxfoundation.org

This is a note to let you know that I've just added the patch titled iio: adc: ad7192: Avoid disabling a clock that was never enabled. to my staging git tree which can be found at git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging.git in the staging-linus branch. The patch will show up in the next release of the linux-next tree (usually sometime within the next 24 hours during the week.) The patch will hopefully also be merged in Linus's tree for the next -rc kernel release. If you have any questions about this process, please let me know. >From e32fe6d90f44922ccbb94016cfc3c238359e3e39 Mon Sep 17 00:00:00 2001 From: Jonathan Cameron <Jonathan.Cameron(a)huawei.com> Date: Thu, 13 May 2021 15:07:43 +0300 Subject: iio: adc: ad7192: Avoid disabling a clock that was never enabled. Found by inspection. If the internal clock source is being used, the driver doesn't call clk_prepare_enable() and as such we should not call clk_disable_unprepare() Use the same condition to protect the disable path as is used on the enable one. Note this will all get simplified when the driver moves over to a full devm_ flow, but that would make backporting the fix harder. Fix obviously predates move out of staging, but backporting will become more complex (and is unlikely to happen), hence that patch is given in the fixes tag. Alexandru's sign off is here because he added this patch into a larger series that Jonathan then applied. Fixes: b581f748cce0 ("staging: iio: adc: ad7192: move out of staging") Cc: Alexandru Tachici <alexandru.tachici(a)analog.com> Reviewed-by: Alexandru Ardelean <ardeleanalex(a)gmail.com> Signed-off-by: Jonathan Cameron <Jonathan.Cameron(a)huawei.com> Signed-off-by: Alexandru Ardelean <aardelean(a)deviqon.com> Cc: <Stable(a)vger.kernel.org> --- drivers/iio/adc/ad7192.c | 8 ++++++-- 1 file changed, 6 insertions(+), 2 deletions(-) diff --git a/drivers/iio/adc/ad7192.c b/drivers/iio/adc/ad7192.c index 2ed580521d81..d3be67aa0522 100644 --- a/drivers/iio/adc/ad7192.c +++ b/drivers/iio/adc/ad7192.c @@ -1014,7 +1014,9 @@ static int ad7192_probe(struct spi_device *spi) return 0; error_disable_clk: - clk_disable_unprepare(st->mclk); + if (st->clock_sel == AD7192_CLK_EXT_MCLK1_2 || + st->clock_sel == AD7192_CLK_EXT_MCLK2) + clk_disable_unprepare(st->mclk); error_remove_trigger: ad_sd_cleanup_buffer_and_trigger(indio_dev); error_disable_dvdd: @@ -1031,7 +1033,9 @@ static int ad7192_remove(struct spi_device *spi) struct ad7192_state *st = iio_priv(indio_dev); iio_device_unregister(indio_dev); - clk_disable_unprepare(st->mclk); + if (st->clock_sel == AD7192_CLK_EXT_MCLK1_2 || + st->clock_sel == AD7192_CLK_EXT_MCLK2) + clk_disable_unprepare(st->mclk); ad_sd_cleanup_buffer_and_trigger(indio_dev); regulator_disable(st->dvdd); -- 2.31.1

3 years, 7 months

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patch "iio: adc: ad7192: handle regulator voltage error first" added to staging-linus

by gregkh＠linuxfoundation.org

This is a note to let you know that I've just added the patch titled iio: adc: ad7192: handle regulator voltage error first to my staging git tree which can be found at git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging.git in the staging-linus branch. The patch will show up in the next release of the linux-next tree (usually sometime within the next 24 hours during the week.) The patch will hopefully also be merged in Linus's tree for the next -rc kernel release. If you have any questions about this process, please let me know. >From b0f27fca5a6c7652e265aae6a4452ce2f2ed64da Mon Sep 17 00:00:00 2001 From: Alexandru Ardelean <aardelean(a)deviqon.com> Date: Thu, 13 May 2021 15:07:44 +0300 Subject: iio: adc: ad7192: handle regulator voltage error first This change fixes a corner-case, where for a zero regulator value, the driver would exit early, initializing the driver only partially. The driver would be in an unknown state. This change reworks the code to check regulator_voltage() return value for negative (error) first, and return early. This is the more common idiom. Also, this change is removing the 'voltage_uv' variable and using the 'ret' value directly. The only place where 'voltage_uv' is being used is to compute the internal reference voltage, and the type of this variable is 'int' (same are for 'ret'). Using only 'ret' avoids having to assign it on the error path. Fixes: ab0afa65bbc7 ("staging: iio: adc: ad7192: fail probe on get_voltage") Cc: Alexandru Tachici <alexandru.tachici(a)analog.com> Signed-off-by: Alexandru Ardelean <aardelean(a)deviqon.com> Signed-off-by: Jonathan Cameron <Jonathan.Cameron(a)huawei.com> Cc: <Stable(a)vger.kernel.org> --- drivers/iio/adc/ad7192.c | 11 ++++------- 1 file changed, 4 insertions(+), 7 deletions(-) diff --git a/drivers/iio/adc/ad7192.c b/drivers/iio/adc/ad7192.c index d3be67aa0522..1141cc13a124 100644 --- a/drivers/iio/adc/ad7192.c +++ b/drivers/iio/adc/ad7192.c @@ -912,7 +912,7 @@ static int ad7192_probe(struct spi_device *spi) { struct ad7192_state *st; struct iio_dev *indio_dev; - int ret, voltage_uv = 0; + int ret; if (!spi->irq) { dev_err(&spi->dev, "no IRQ?\n"); @@ -949,15 +949,12 @@ static int ad7192_probe(struct spi_device *spi) goto error_disable_avdd; } - voltage_uv = regulator_get_voltage(st->avdd); - - if (voltage_uv > 0) { - st->int_vref_mv = voltage_uv / 1000; - } else { - ret = voltage_uv; + ret = regulator_get_voltage(st->avdd); + if (ret < 0) { dev_err(&spi->dev, "Device tree error, reference voltage undefined\n"); goto error_disable_avdd; } + st->int_vref_mv = ret / 1000; spi_set_drvdata(spi, indio_dev); st->chip_info = of_device_get_match_data(&spi->dev); -- 2.31.1

3 years, 7 months

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patch "iio: adc: ad7124: Fix potential overflow due to non sequential" added to staging-linus

by gregkh＠linuxfoundation.org

This is a note to let you know that I've just added the patch titled iio: adc: ad7124: Fix potential overflow due to non sequential to my staging git tree which can be found at git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging.git in the staging-linus branch. The patch will show up in the next release of the linux-next tree (usually sometime within the next 24 hours during the week.) The patch will hopefully also be merged in Linus's tree for the next -rc kernel release. If you have any questions about this process, please let me know. >From f2a772c51206b0c3f262e4f6a3812c89a650191b Mon Sep 17 00:00:00 2001 From: Jonathan Cameron <Jonathan.Cameron(a)huawei.com> Date: Thu, 13 May 2021 15:07:42 +0300 Subject: iio: adc: ad7124: Fix potential overflow due to non sequential channel numbers Channel numbering must start at 0 and then not have any holes, or it is possible to overflow the available storage. Note this bug was introduced as part of a fix to ensure we didn't rely on the ordering of child nodes. So we need to support arbitrary ordering but they all need to be there somewhere. Note I hit this when using qemu to test the rest of this series. Arguably this isn't the best fix, but it is probably the most minimal option for backporting etc. Alexandru's sign-off is here because he carried this patch in a larger set that Jonathan then applied. Fixes: d7857e4ee1ba6 ("iio: adc: ad7124: Fix DT channel configuration") Reviewed-by: Alexandru Ardelean <ardeleanalex(a)gmail.com> Signed-off-by: Jonathan Cameron <Jonathan.Cameron(a)huawei.com> Signed-off-by: Alexandru Ardelean <aardelean(a)deviqon.com> Cc: <Stable(a)vger.kernel.org> --- drivers/iio/adc/ad7124.c | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/drivers/iio/adc/ad7124.c b/drivers/iio/adc/ad7124.c index 437116a07cf1..a27db78ea13e 100644 --- a/drivers/iio/adc/ad7124.c +++ b/drivers/iio/adc/ad7124.c @@ -771,6 +771,13 @@ static int ad7124_of_parse_channel_config(struct iio_dev *indio_dev, if (ret) goto err; + if (channel >= indio_dev->num_channels) { + dev_err(indio_dev->dev.parent, + "Channel index >= number of channels\n"); + ret = -EINVAL; + goto err; + } + ret = of_property_read_u32_array(child, "diff-channels", ain, 2); if (ret) -- 2.31.1

3 years, 7 months

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patch "iio: adc: ad7124: Fix missbalanced regulator enable / disable on" added to staging-linus

by gregkh＠linuxfoundation.org

This is a note to let you know that I've just added the patch titled iio: adc: ad7124: Fix missbalanced regulator enable / disable on to my staging git tree which can be found at git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging.git in the staging-linus branch. The patch will show up in the next release of the linux-next tree (usually sometime within the next 24 hours during the week.) The patch will hopefully also be merged in Linus's tree for the next -rc kernel release. If you have any questions about this process, please let me know. >From 4573472315f0fa461330545ff2aa2f6da0b1ae76 Mon Sep 17 00:00:00 2001 From: Jonathan Cameron <Jonathan.Cameron(a)huawei.com> Date: Thu, 13 May 2021 15:07:41 +0300 Subject: iio: adc: ad7124: Fix missbalanced regulator enable / disable on error. If the devm_regulator_get() call succeeded but not the regulator_enable() then regulator_disable() would be called on a regulator that was not enabled. Fix this by moving regulator enabling / disabling over to devm_ management via devm_add_action_or_reset. Alexandru's sign-off here because he pulled Jonathan's patch into a larger set which Jonathan then applied. Fixes: b3af341bbd96 ("iio: adc: Add ad7124 support") Reviewed-by: Alexandru Ardelean <ardeleanalex(a)gmail.com> Signed-off-by: Jonathan Cameron <Jonathan.Cameron(a)huawei.com> Signed-off-by: Alexandru Ardelean <aardelean(a)deviqon.com> Cc: <Stable(a)vger.kernel.org> --- drivers/iio/adc/ad7124.c | 29 +++++++++++++---------------- 1 file changed, 13 insertions(+), 16 deletions(-) diff --git a/drivers/iio/adc/ad7124.c b/drivers/iio/adc/ad7124.c index 9d3952b4674f..437116a07cf1 100644 --- a/drivers/iio/adc/ad7124.c +++ b/drivers/iio/adc/ad7124.c @@ -850,6 +850,11 @@ static int ad7124_setup(struct ad7124_state *st) return ret; } +static void ad7124_reg_disable(void *r) +{ + regulator_disable(r); +} + static int ad7124_probe(struct spi_device *spi) { const struct ad7124_chip_info *info; @@ -895,17 +900,20 @@ static int ad7124_probe(struct spi_device *spi) ret = regulator_enable(st->vref[i]); if (ret) return ret; + + ret = devm_add_action_or_reset(&spi->dev, ad7124_reg_disable, + st->vref[i]); + if (ret) + return ret; } st->mclk = devm_clk_get(&spi->dev, "mclk"); - if (IS_ERR(st->mclk)) { - ret = PTR_ERR(st->mclk); - goto error_regulator_disable; - } + if (IS_ERR(st->mclk)) + return PTR_ERR(st->mclk); ret = clk_prepare_enable(st->mclk); if (ret < 0) - goto error_regulator_disable; + return ret; ret = ad7124_soft_reset(st); if (ret < 0) @@ -935,11 +943,6 @@ static int ad7124_probe(struct spi_device *spi) ad_sd_cleanup_buffer_and_trigger(indio_dev); error_clk_disable_unprepare: clk_disable_unprepare(st->mclk); -error_regulator_disable: - for (i = ARRAY_SIZE(st->vref) - 1; i >= 0; i--) { - if (!IS_ERR_OR_NULL(st->vref[i])) - regulator_disable(st->vref[i]); - } return ret; } @@ -948,17 +951,11 @@ static int ad7124_remove(struct spi_device *spi) { struct iio_dev *indio_dev = spi_get_drvdata(spi); struct ad7124_state *st = iio_priv(indio_dev); - int i; iio_device_unregister(indio_dev); ad_sd_cleanup_buffer_and_trigger(indio_dev); clk_disable_unprepare(st->mclk); - for (i = ARRAY_SIZE(st->vref) - 1; i >= 0; i--) { - if (!IS_ERR_OR_NULL(st->vref[i])) - regulator_disable(st->vref[i]); - } - return 0; } -- 2.31.1

3 years, 7 months

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[PATCH] ALSA: hda/realtek: Headphone volume is controlled by Front mixer

by Hui Wang

On some ASUS and MSI machines, the audio codec is alc1220 and the Headphone is connected to audio mixer 0xf and DAC 0x5, in theory the Headphone volume is controlled by DAC 0x5 (Heapdhone Playback Volume), but somehow it is controlled by DAC 0x2 (Front Playback Volume), maybe this is a defect on the codec alc1220. Because of this issue, the PA couldn't switch the headphone and Lineout correctly, If we apply the quirk CLEVO_P950 to those machines, the Lineout and Headphone will share the audio mixer 0xc and DAC 0x2, and generate Headphone+LO mixer, then PA could handle them when switching between them. BugLink: https://gitlab.freedesktop.org/pipewire/pipewire/-/issues/1206 Cc: <stable(a)vger.kernel.org> Signed-off-by: Hui Wang <hui.wang(a)canonical.com> --- sound/pci/hda/patch_realtek.c | 23 +++++++++++++++++++++++ 1 file changed, 23 insertions(+) diff --git a/sound/pci/hda/patch_realtek.c b/sound/pci/hda/patch_realtek.c index c6b5db831ed0..3d40d32ef3ba 100644 --- a/sound/pci/hda/patch_realtek.c +++ b/sound/pci/hda/patch_realtek.c @@ -2603,6 +2603,28 @@ static const struct hda_model_fixup alc882_fixup_models[] = { {} }; +static const struct snd_hda_pin_quirk alc882_pin_fixup_tbl[] = { + SND_HDA_PIN_QUIRK(0x10ec1220, 0x1043, "ASUS", ALC1220_FIXUP_CLEVO_P950, + {0x14, 0x01014010}, + {0x15, 0x01011012}, + {0x16, 0x01016011}, + {0x18, 0x01a19040}, + {0x19, 0x02a19050}, + {0x1a, 0x0181304f}, + {0x1b, 0x0221401f}, + {0x1e, 0x01456130}), + SND_HDA_PIN_QUIRK(0x10ec1220, 0x1462, "MS-7C35", ALC1220_FIXUP_CLEVO_P950, + {0x14, 0x01015010}, + {0x15, 0x01011012}, + {0x16, 0x01011011}, + {0x18, 0x01a11040}, + {0x19, 0x02a19050}, + {0x1a, 0x0181104f}, + {0x1b, 0x0221401f}, + {0x1e, 0x01451130}), + {} +}; + /* * BIOS auto configuration */ @@ -2644,6 +2666,7 @@ static int patch_alc882(struct hda_codec *codec) snd_hda_pick_fixup(codec, alc882_fixup_models, alc882_fixup_tbl, alc882_fixups); + snd_hda_pick_pin_fixup(codec, alc882_pin_fixup_tbl, alc882_fixups, true); snd_hda_apply_fixup(codec, HDA_FIXUP_ACT_PRE_PROBE); alc_auto_parse_customize_define(codec); -- 2.25.1

3 years, 7 months

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[PATCH 5.12 00/43] 5.12.6-rc2 review

by Greg Kroah-Hartman

This is the start of the stable review cycle for the 5.12.6 release. There are 43 patches in this series, all will be posted as a response to this one. If anyone has any issues with these being applied, please let me know. Responses should be made by Sat, 22 May 2021 15:22:43 +0000. Anything received after that time might be too late. The whole patch series can be found in one patch at: https://www.kernel.org/pub/linux/kernel/v5.x/stable-review/patch-5.12.6-rc2… or in the git tree and branch at: git://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable-rc.git linux-5.12.y and the diffstat can be found below. thanks, greg k-h ------------- Pseudo-Shortlog of commits: Greg Kroah-Hartman <gregkh(a)linuxfoundation.org> Linux 5.12.6-rc2 Eric Dumazet <edumazet(a)google.com> ipv6: remove extra dev_hold() for fallback tunnels Eric Dumazet <edumazet(a)google.com> ip6_tunnel: sit: proper dev_{hold|put} in ndo_[un]init methods Eric Dumazet <edumazet(a)google.com> sit: proper dev_{hold|put} in ndo_[un]init methods Eric Dumazet <edumazet(a)google.com> ip6_gre: proper dev_{hold|put} in ndo_[un]init methods Yannick Vignon <yannick.vignon(a)nxp.com> net: stmmac: Do not enable RX FIFO overflow interrupts Zqiang <qiang.zhang(a)windriver.com> lib: stackdepot: turn depot_lock spinlock to raw_spinlock yangerkun <yangerkun(a)huawei.com> block: reexpand iov_iter after read/write Hui Wang <hui.wang(a)canonical.com> ALSA: hda: generic: change the DAC ctl name for LO+SPK or LO+HP Íñigo Huguet <ihuguet(a)redhat.com> net:CXGB4: fix leak if sk_buff is not used Hans de Goede <hdegoede(a)redhat.com> gpiolib: acpi: Add quirk to ignore EC wakeups on Dell Venue 10 Pro 5055 Rodrigo Siqueira <Rodrigo.Siqueira(a)amd.com> drm/amd/display: Fix two cursor duplication when using overlay Keith Busch <kbusch(a)kernel.org> nvmet: remove unsupported command noise Phillip Potter <phil(a)philpotter.co.uk> net: hsr: check skb can contain struct hsr_ethhdr in fill_frame_info Zhang Zhengming <zhangzhengming(a)huawei.com> bridge: Fix possible races between assigning rx_handler_data and setting IFF_BRIDGE_PORT bit Darren Powell <darren.powell(a)amd.com> amdgpu/pm: Prevent force of DCEFCLK on NAVI10 and SIENNA_CICHLID Bodo Stroesser <bostroesser(a)gmail.com> scsi: target: tcmu: Return from tcmu_handle_completions() if cmd_id not found Jeff Layton <jlayton(a)kernel.org> ceph: don't allow access to MDS-private inodes Jeff Layton <jlayton(a)kernel.org> ceph: don't clobber i_snap_caps on non-I_NEW inode Jeff Layton <jlayton(a)kernel.org> ceph: fix fscache invalidation James Smart <jsmart2021(a)gmail.com> scsi: lpfc: Fix illegal memory access on Abort IOCBs Nathan Chancellor <nathan(a)kernel.org> riscv: Workaround mcount name prior to clang-13 Nathan Chancellor <nathan(a)kernel.org> scripts/recordmcount.pl: Fix RISC-V regex for clang Nathan Chancellor <nathan(a)kernel.org> riscv: Use $(LD) instead of $(CC) to link vDSO Prashant Malani <pmalani(a)chromium.org> platform/chrome: cros_ec_typec: Add DP mode check Manivannan Sadhasivam <mani(a)kernel.org> ARM: 9075/1: kernel: Fix interrupted SMC calls Johannes Berg <johannes.berg(a)intel.com> um: Disable CONFIG_GCOV with MODULES Johannes Berg <johannes.berg(a)intel.com> um: Mark all kernel symbols as local Chuck Lever <chuck.lever(a)oracle.com> svcrdma: Don't leak send_ctxt on Send errors Yi Chen <chenyi77(a)huawei.com> f2fs: fix to avoid NULL pointer dereference Trond Myklebust <trond.myklebust(a)hammerspace.com> NFS: NFS_INO_REVAL_PAGECACHE should mark the change attribute invalid Hans de Goede <hdegoede(a)redhat.com> Input: silead - add workaround for x86 BIOS-es which bring the chip up in a stuck state Hans de Goede <hdegoede(a)redhat.com> Input: elants_i2c - do not bind to i2c-hid compatible ACPI instantiated devices Dinghao Liu <dinghao.liu(a)zju.edu.cn> PCI: tegra: Fix runtime PM imbalance in pex_ep_event_pex_rst_deassert() Feilong Lin <linfeilong(a)huawei.com> ACPI / hotplug / PCI: Fix reference count leak in enable_slot() Trond Myklebust <trond.myklebust(a)hammerspace.com> NFS: Fix fscache invalidation in nfs_set_cache_invalid() louis.wang <liang26812(a)gmail.com> ARM: 9066/1: ftrace: pause/unpause function graph tracer in cpu_suspend() Gustavo Pimentel <Gustavo.Pimentel(a)synopsys.com> dmaengine: dw-edma: Fix crash on loading/unloading driver Arnd Bergmann <arnd(a)arndb.de> PCI: thunder: Fix compile testing Arnd Bergmann <arnd(a)arndb.de> usb: sl811-hcd: improve misleading indentation Arnd Bergmann <arnd(a)arndb.de> kgdb: fix gcc-11 warning on indentation Arnd Bergmann <arnd(a)arndb.de> airo: work around stack usage warning Linus Torvalds <torvalds(a)linux-foundation.org> drm/i915/display: fix compiler warning about array overrun Arnd Bergmann <arnd(a)arndb.de> x86/msr: Fix wr/rdmsr_safe_regs_on_cpu() prototypes ------------- Diffstat: Makefile | 4 +- arch/arm/kernel/asm-offsets.c | 3 + arch/arm/kernel/smccc-call.S | 11 +- arch/arm/kernel/suspend.c | 19 +++- arch/riscv/include/asm/ftrace.h | 14 ++- arch/riscv/kernel/mcount.S | 10 +- arch/riscv/kernel/vdso/Makefile | 12 +-- arch/um/Kconfig.debug | 1 + arch/um/kernel/Makefile | 1 - arch/um/kernel/dyn.lds.S | 6 ++ arch/um/kernel/gmon_syms.c | 16 --- arch/um/kernel/uml.lds.S | 6 ++ arch/x86/lib/msr-smp.c | 4 +- drivers/dma/dw-edma/dw-edma-core.c | 11 +- drivers/gpio/gpiolib-acpi.c | 14 +++ drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c | 51 +++++++++ drivers/gpu/drm/amd/pm/swsmu/smu11/navi10_ppt.c | 5 +- .../drm/amd/pm/swsmu/smu11/sienna_cichlid_ppt.c | 4 +- drivers/gpu/drm/i915/display/intel_dp.c | 13 ++- drivers/input/touchscreen/elants_i2c.c | 44 +++++++- drivers/input/touchscreen/silead.c | 44 +++++++- drivers/misc/kgdbts.c | 26 ++--- drivers/net/ethernet/chelsio/cxgb4/sge.c | 16 +-- drivers/net/ethernet/stmicro/stmmac/dwmac4_dma.c | 7 +- drivers/net/ethernet/stmicro/stmmac/stmmac_main.c | 14 +-- drivers/net/wireless/cisco/airo.c | 117 ++++++++++++--------- drivers/nvme/target/admin-cmd.c | 6 +- drivers/pci/controller/dwc/pcie-tegra194.c | 2 +- drivers/pci/controller/pci-thunder-ecam.c | 2 +- drivers/pci/controller/pci-thunder-pem.c | 13 +-- drivers/pci/hotplug/acpiphp_glue.c | 1 + drivers/pci/pci.h | 6 ++ drivers/platform/chrome/cros_ec_typec.c | 5 + drivers/scsi/lpfc/lpfc_sli.c | 11 +- drivers/target/target_core_user.c | 4 +- drivers/usb/host/sl811-hcd.c | 9 +- fs/block_dev.c | 20 +++- fs/ceph/caps.c | 1 + fs/ceph/export.c | 8 ++ fs/ceph/inode.c | 13 ++- fs/ceph/mds_client.c | 7 ++ fs/ceph/super.h | 24 +++++ fs/f2fs/segment.c | 5 +- fs/nfs/inode.c | 7 +- lib/stackdepot.c | 6 +- net/bridge/br_netlink.c | 5 +- net/hsr/hsr_forward.c | 4 + net/ipv6/ip6_gre.c | 7 +- net/ipv6/ip6_tunnel.c | 3 +- net/ipv6/ip6_vti.c | 1 - net/ipv6/sit.c | 5 +- net/sunrpc/xprtrdma/svc_rdma_sendto.c | 8 +- scripts/recordmcount.pl | 2 +- sound/pci/hda/hda_generic.c | 16 ++- 54 files changed, 473 insertions(+), 201 deletions(-)

3 years, 7 months

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[PATCH 1/3] drm/amdgpu: Don't query CE and UE errors

by Luben Tuikov

On QUERY2 IOCTL don't query counts of correctable and uncorrectable errors, since when RAS is enabled and supported on Vega20 server boards, this takes insurmountably long time, in O(n^3), which slows the system down to the point of it being unusable when we have GUI up. Fixes: ae363a212b14 ("drm/amdgpu: Add a new flag to AMDGPU_CTX_OP_QUERY_STATE2") Cc: Alexander Deucher <Alexander.Deucher(a)amd.com> Cc: stable(a)vger.kernel.org Signed-off-by: Luben Tuikov <luben.tuikov(a)amd.com> Reviewed-by: Alexander Deucher <Alexander.Deucher(a)amd.com> Reviewed-by: Christian König <christian.koenig(a)amd.com> --- drivers/gpu/drm/amd/amdgpu/amdgpu_ctx.c | 16 ---------------- 1 file changed, 16 deletions(-) diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_ctx.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_ctx.c index fc83445fbc40..bb0cfe871aba 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_ctx.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_ctx.c @@ -337,7 +337,6 @@ static int amdgpu_ctx_query2(struct amdgpu_device *adev, { struct amdgpu_ctx *ctx; struct amdgpu_ctx_mgr *mgr; - unsigned long ras_counter; if (!fpriv) return -EINVAL; @@ -362,21 +361,6 @@ static int amdgpu_ctx_query2(struct amdgpu_device *adev, if (atomic_read(&ctx->guilty)) out->state.flags |= AMDGPU_CTX_QUERY2_FLAGS_GUILTY; - /*query ue count*/ - ras_counter = amdgpu_ras_query_error_count(adev, false); - /*ras counter is monotonic increasing*/ - if (ras_counter != ctx->ras_counter_ue) { - out->state.flags |= AMDGPU_CTX_QUERY2_FLAGS_RAS_UE; - ctx->ras_counter_ue = ras_counter; - } - - /*query ce count*/ - ras_counter = amdgpu_ras_query_error_count(adev, true); - if (ras_counter != ctx->ras_counter_ce) { - out->state.flags |= AMDGPU_CTX_QUERY2_FLAGS_RAS_CE; - ctx->ras_counter_ce = ras_counter; - } - mutex_unlock(&mgr->lock); return 0; } -- 2.31.1.527.g2d677e5b15

3 years, 7 months

1
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[PATCH] x86: Fix location of '-plugin-opt=' flags

by Nathan Chancellor

Commit b33fff07e3e3 ("x86, build: allow LTO to be selected") added a couple of '-plugin-opt=' flags to KBUILD_LDFLAGS because the code model and stack alignment are not stored in LLVM bitcode. However, these flags were added to KBUILD_LDFLAGS prior to the emulation flag assignment, which uses ':=', so they were overwritten and never added to $(LD) invocations. The absence of these flags caused misalignment issues in the AMDGPU driver when compiling with CONFIG_LTO_CLANG, resulting in general protection faults. Shuffle the assignment below the initial one so that the flags are properly passed along and all of the linker flags stay together. At the same time, avoid any future issues with clobbering flags by changing the emulation flag assignment to '+=' since KBUILD_LDFLAGS is already defined with ':=' in the main Makefile before being exported for modification here as a result of commit ce99d0bf312d ("kbuild: clear LDFLAGS in the top Makefile"). Cc: stable(a)vger.kernel.org Fixes: b33fff07e3e3 ("x86, build: allow LTO to be selected") Link: https://github.com/ClangBuiltLinux/linux/issues/1374 Reported-by: Anthony Ruhier <aruhier(a)mailbox.org> Tested-by: Anthony Ruhier <aruhier(a)mailbox.org> Signed-off-by: Nathan Chancellor <nathan(a)kernel.org> --- arch/x86/Makefile | 12 ++++++------ 1 file changed, 6 insertions(+), 6 deletions(-) diff --git a/arch/x86/Makefile b/arch/x86/Makefile index c77c5d8a7b3e..307529417021 100644 --- a/arch/x86/Makefile +++ b/arch/x86/Makefile @@ -178,11 +178,6 @@ ifeq ($(ACCUMULATE_OUTGOING_ARGS), 1) KBUILD_CFLAGS += $(call cc-option,-maccumulate-outgoing-args,) endif -ifdef CONFIG_LTO_CLANG -KBUILD_LDFLAGS += -plugin-opt=-code-model=kernel \ - -plugin-opt=-stack-alignment=$(if $(CONFIG_X86_32),4,8) -endif - # Workaround for a gcc prelease that unfortunately was shipped in a suse release KBUILD_CFLAGS += -Wno-sign-compare # @@ -202,7 +197,12 @@ ifdef CONFIG_RETPOLINE endif endif -KBUILD_LDFLAGS := -m elf_$(UTS_MACHINE) +KBUILD_LDFLAGS += -m elf_$(UTS_MACHINE) + +ifdef CONFIG_LTO_CLANG +KBUILD_LDFLAGS += -plugin-opt=-code-model=kernel \ + -plugin-opt=-stack-alignment=$(if $(CONFIG_X86_32),4,8) +endif ifdef CONFIG_X86_NEED_RELOCS LDFLAGS_vmlinux := --emit-relocs --discard-none base-commit: d07f6ca923ea0927a1024dfccafc5b53b61cfecc -- 2.32.0.rc0

3 years, 7 months

4
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patch "drivers: base: Fix device link removal" added to driver-core-linus

by gregkh＠linuxfoundation.org

This is a note to let you know that I've just added the patch titled drivers: base: Fix device link removal to my driver-core git tree which can be found at git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core.git in the driver-core-linus branch. The patch will show up in the next release of the linux-next tree (usually sometime within the next 24 hours during the week.) The patch will hopefully also be merged in Linus's tree for the next -rc kernel release. If you have any questions about this process, please let me know. >From 80dd33cf72d1ab4f0af303f1fa242c6d6c8d328f Mon Sep 17 00:00:00 2001 From: "Rafael J. Wysocki" <rafael.j.wysocki(a)intel.com> Date: Fri, 14 May 2021 14:10:15 +0200 Subject: drivers: base: Fix device link removal When device_link_free() drops references to the supplier and consumer devices of the device link going away and the reference being dropped turns out to be the last one for any of those device objects, its ->release callback will be invoked and it may sleep which goes against the SRCU callback execution requirements. To address this issue, make the device link removal code carry out the device_link_free() actions preceded by SRCU synchronization from a separate work item (the "long" workqueue is used for that, because it does not matter when the device link memory is released and it may take time to get to that point) instead of using SRCU callbacks. While at it, make the code work analogously when SRCU is not enabled to reduce the differences between the SRCU and non-SRCU cases. Fixes: 843e600b8a2b ("driver core: Fix sleeping in invalid context during device link deletion") Cc: stable <stable(a)vger.kernel.org> Reported-by: chenxiang (M) <chenxiang66(a)hisilicon.com> Tested-by: chenxiang (M) <chenxiang66(a)hisilicon.com> Reviewed-by: Saravana Kannan <saravanak(a)google.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki(a)intel.com> Link: https://lore.kernel.org/r/5722787.lOV4Wx5bFT@kreacher Signed-off-by: Greg Kroah-Hartman <gregkh(a)linuxfoundation.org> --- drivers/base/core.c | 37 +++++++++++++++++++++++-------------- include/linux/device.h | 6 ++---- 2 files changed, 25 insertions(+), 18 deletions(-) diff --git a/drivers/base/core.c b/drivers/base/core.c index 628e33939aca..61c19641e1d0 100644 --- a/drivers/base/core.c +++ b/drivers/base/core.c @@ -194,6 +194,11 @@ int device_links_read_lock_held(void) { return srcu_read_lock_held(&device_links_srcu); } + +static void device_link_synchronize_removal(void) +{ + synchronize_srcu(&device_links_srcu); +} #else /* !CONFIG_SRCU */ static DECLARE_RWSEM(device_links_lock); @@ -224,6 +229,10 @@ int device_links_read_lock_held(void) return lockdep_is_held(&device_links_lock); } #endif + +static inline void device_link_synchronize_removal(void) +{ +} #endif /* !CONFIG_SRCU */ static bool device_is_ancestor(struct device *dev, struct device *target) @@ -445,8 +454,13 @@ static struct attribute *devlink_attrs[] = { }; ATTRIBUTE_GROUPS(devlink); -static void device_link_free(struct device_link *link) +static void device_link_release_fn(struct work_struct *work) { + struct device_link *link = container_of(work, struct device_link, rm_work); + + /* Ensure that all references to the link object have been dropped. */ + device_link_synchronize_removal(); + while (refcount_dec_not_one(&link->rpm_active)) pm_runtime_put(link->supplier); @@ -455,24 +469,19 @@ static void device_link_free(struct device_link *link) kfree(link); } -#ifdef CONFIG_SRCU -static void __device_link_free_srcu(struct rcu_head *rhead) -{ - device_link_free(container_of(rhead, struct device_link, rcu_head)); -} - static void devlink_dev_release(struct device *dev) { struct device_link *link = to_devlink(dev); - call_srcu(&device_links_srcu, &link->rcu_head, __device_link_free_srcu); -} -#else -static void devlink_dev_release(struct device *dev) -{ - device_link_free(to_devlink(dev)); + INIT_WORK(&link->rm_work, device_link_release_fn); + /* + * It may take a while to complete this work because of the SRCU + * synchronization in device_link_release_fn() and if the consumer or + * supplier devices get deleted when it runs, so put it into the "long" + * workqueue. + */ + queue_work(system_long_wq, &link->rm_work); } -#endif static struct class devlink_class = { .name = "devlink", diff --git a/include/linux/device.h b/include/linux/device.h index 38a2071cf776..f1a00040fa53 100644 --- a/include/linux/device.h +++ b/include/linux/device.h @@ -570,7 +570,7 @@ struct device { * @flags: Link flags. * @rpm_active: Whether or not the consumer device is runtime-PM-active. * @kref: Count repeated addition of the same link. - * @rcu_head: An RCU head to use for deferred execution of SRCU callbacks. + * @rm_work: Work structure used for removing the link. * @supplier_preactivated: Supplier has been made active before consumer probe. */ struct device_link { @@ -583,9 +583,7 @@ struct device_link { u32 flags; refcount_t rpm_active; struct kref kref; -#ifdef CONFIG_SRCU - struct rcu_head rcu_head; -#endif + struct work_struct rm_work; bool supplier_preactivated; /* Owned by consumer probe. */ }; -- 2.31.1

3 years, 7 months

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5.4.y missing upstream commits 7beb691f and 51f644b4, causing: WARNING in vkms_vblank_simulate

by George Kennedy

Hello Greg, During Syzkaller reproducer testing on 5.4.y ( 5.4.121-rc1) the following warning occurred: WARNING in vkms_vblank_simulate https://syzkaller.appspot.com//bug?id=0ba17d70d062b2595e1f061231474800f076c… First, upstream commit 7beb691f was cherry-pick'd to 5.4.y as upstream commit 51f644b4 is dependent on it. drm: Initialize struct drm_crtc_state.no_vblank from device settings https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?… Second, upstream commit 51f644b4 was cherry-pick'd to 5.4.y, the conflicts were resolved, and the warning no longer occurs (rebooted 10 times with the fix commits - no "WARNING in vkms_vblank_simulate" messages). drm/atomic-helper: reset vblank on crtc reset https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?… Cherry-pick'd upstream commit 51f644b4 with conflicts resolved (showing the cherry-pick'd commit ID): commit 39f1d9e81159fd1ff11c541b3310c0a204f8718e Author: Daniel Vetter <daniel.vetter(a)ffwll.ch> Date: Fri Jun 12 18:00:49 2020 +0200 drm/atomic-helper: reset vblank on crtc reset Only when vblanks are supported ofc. Some drivers do this already, but most unfortunately missed it. This opens up bugs after driver load, before the crtc is enabled for the first time. syzbot spotted this when loading vkms as a secondary output. Given how many drivers are buggy it's best to solve this once and for all in shared helper code. Aside from moving the few existing calls to drm_crtc_vblank_reset into helpers (i915 doesn't use helpers, so keeps its own) I think the regression risk is minimal: atomic helpers already rely on drivers calling drm_crtc_vblank_on/off correctly in their hooks when they support vblanks. And driver that's failing to handle vblanks after this is missing those calls already, and vblanks could only work by accident when enabling a CRTC for the first time right after boot. Big thanks to Tetsuo for helping track down what's going wrong here. There's only a few drivers which already had the necessary call and needed some updating: - komeda, atmel and tidss also needed to be changed to call __drm_atomic_helper_crtc_reset() intead of open coding it - tegra and msm even had it in the same place already, just code motion, and malidp already uses __drm_atomic_helper_crtc_reset(). - Laurent noticed that rcar-du and omap open-code their crtc reset and hence would actually be broken by this patch now. So fix them up by reusing the helpers, which brings the drm_crtc_vblank_reset() back. Only call left is in i915, which doesn't use drm_mode_config_reset, but has its own fastboot infrastructure. So that's the only case where we actually want this in the driver still. I've also reviewed all other drivers which set up vblank support with drm_vblank_init. After the previous patch fixing mxsfb all atomic drivers do call drm_crtc_vblank_on/off as they should, the remaining drivers are either legacy kms or legacy dri1 drivers, so not affected by this change to atomic helpers. v2: Use the drm_dev_has_vblank() helper. v3: Laurent pointed out that omap and rcar-du used drm_crtc_vblank_off instead of drm_crtc_vblank_reset. Adjust them too. v4: Laurent noticed that rcar-du and omap open-code their crtc reset and hence would actually be broken by this patch now. So fix them up by reusing the helpers, which brings the drm_crtc_vblank_reset() back. v5: also mention rcar-du and ompadrm in the proper commit message above (Laurent). Reviewed-by: Laurent Pinchart <laurent.pinchart(a)ideasonboard.com> Acked-by: Maxime Ripard <mripard(a)kernel.org> Cc: Laurent Pinchart <laurent.pinchart(a)ideasonboard.com> Reviewed-by: Boris Brezillon <boris.brezillon(a)collabora.com> Acked-by: Liviu Dudau <liviu.dudau(a)arm.com> Acked-by: Thierry Reding <treding(a)nvidia.com> Link: https://syzkaller.appspot.com/bug?id=0ba17d70d062b2595e1f061231474800f076c7… Reported-by: Tetsuo Handa <penguin-kernel(a)I-love.SAKURA.ne.jp> Reported-by: syzbot+0871b14ca2e2fb64f6e3(a)syzkaller.appspotmail.com Cc: Tetsuo Handa <penguin-kernel(a)I-love.SAKURA.ne.jp> Cc: "James (Qian) Wang" <james.qian.wang(a)arm.com> Cc: Liviu Dudau <liviu.dudau(a)arm.com> Cc: Mihail Atanassov <mihail.atanassov(a)arm.com> Cc: Brian Starkey <brian.starkey(a)arm.com> Cc: Sam Ravnborg <sam(a)ravnborg.org> Cc: Boris Brezillon <bbrezillon(a)kernel.org> Cc: Nicolas Ferre <nicolas.ferre(a)microchip.com> Cc: Alexandre Belloni <alexandre.belloni(a)bootlin.com> Cc: Ludovic Desroches <ludovic.desroches(a)microchip.com> Cc: Maarten Lankhorst <maarten.lankhorst(a)linux.intel.com> Cc: Maxime Ripard <mripard(a)kernel.org> Cc: Thomas Zimmermann <tzimmermann(a)suse.de> Cc: David Airlie <airlied(a)linux.ie> Cc: Daniel Vetter <daniel(a)ffwll.ch> Cc: Thierry Reding <thierry.reding(a)gmail.com> Cc: Jonathan Hunter <jonathanh(a)nvidia.com> Cc: Jyri Sarha <jsarha(a)ti.com> Cc: Tomi Valkeinen <tomi.valkeinen(a)ti.com> Cc: Rob Clark <robdclark(a)gmail.com> Cc: Sean Paul <seanpaul(a)chromium.org> Cc: Brian Masney <masneyb(a)onstation.org> Cc: Emil Velikov <emil.velikov(a)collabora.com> Cc: zhengbin <zhengbin13(a)huawei.com> Cc: Thomas Gleixner <tglx(a)linutronix.de> Cc: linux-tegra(a)vger.kernel.org Cc: Kieran Bingham <kieran.bingham+renesas(a)ideasonboard.com> Cc: linux-arm-kernel(a)lists.infradead.org Cc: linux-renesas-soc(a)vger.kernel.org Signed-off-by: Daniel Vetter <daniel.vetter(a)intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20200612160056.2082681-1-dani… (cherry picked from commit 51f644b40b4b794b28b982fdd5d0dd8ee63f9272) Signed-off-by: George Kennedy <george.kennedy(a)oracle.com> Conflicts: drivers/gpu/drm/tidss/tidss_crtc.c drivers/gpu/drm/tidss/tidss_kms.c diff --git a/drivers/gpu/drm/arm/display/komeda/komeda_crtc.c b/drivers/gpu/drm/arm/display/komeda/komeda_crtc.c index 52c4256..d301e55 100644 --- a/drivers/gpu/drm/arm/display/komeda/komeda_crtc.c +++ b/drivers/gpu/drm/arm/display/komeda/komeda_crtc.c @@ -440,10 +440,8 @@ static void komeda_crtc_reset(struct drm_crtc *crtc) crtc->state = NULL; state = kzalloc(sizeof(*state), GFP_KERNEL); - if (state) { - crtc->state = &state->base; - crtc->state->crtc = crtc; - } + if (state) + __drm_atomic_helper_crtc_reset(crtc, &state->base); } static struct drm_crtc_state * @@ -564,7 +562,6 @@ static int komeda_crtc_add(struct komeda_kms_dev *kms, return err; drm_crtc_helper_add(crtc, &komeda_crtc_helper_funcs); - drm_crtc_vblank_reset(crtc); crtc->port = kcrtc->master->of_output_port; diff --git a/drivers/gpu/drm/arm/malidp_drv.c b/drivers/gpu/drm/arm/malidp_drv.c index 333b88a..566b183 100644 --- a/drivers/gpu/drm/arm/malidp_drv.c +++ b/drivers/gpu/drm/arm/malidp_drv.c @@ -865,7 +865,6 @@ static int malidp_bind(struct device *dev) drm->irq_enabled = true; ret = drm_vblank_init(drm, drm->mode_config.num_crtc); - drm_crtc_vblank_reset(&malidp->crtc); if (ret < 0) { DRM_ERROR("failed to initialise vblank\n"); goto vblank_fail; diff --git a/drivers/gpu/drm/atmel-hlcdc/atmel_hlcdc_crtc.c b/drivers/gpu/drm/atmel-hlcdc/atmel_hlcdc_crtc.c index 1098513..ce246b9 100644 --- a/drivers/gpu/drm/atmel-hlcdc/atmel_hlcdc_crtc.c +++ b/drivers/gpu/drm/atmel-hlcdc/atmel_hlcdc_crtc.c @@ -411,10 +411,8 @@ static void atmel_hlcdc_crtc_reset(struct drm_crtc *crtc) } state = kzalloc(sizeof(*state), GFP_KERNEL); - if (state) { - crtc->state = &state->base; - crtc->state->crtc = crtc; - } + if (state) + __drm_atomic_helper_crtc_reset(crtc, &state->base); } static struct drm_crtc_state * @@ -528,7 +526,6 @@ int atmel_hlcdc_crtc_create(struct drm_device *dev) } drm_crtc_helper_add(&crtc->base, &lcdc_crtc_helper_funcs); - drm_crtc_vblank_reset(&crtc->base); drm_mode_crtc_set_gamma_size(&crtc->base, ATMEL_HLCDC_CLUT_SIZE); drm_crtc_enable_color_mgmt(&crtc->base, 0, false, diff --git a/drivers/gpu/drm/drm_atomic_state_helper.c b/drivers/gpu/drm/drm_atomic_state_helper.c index d0a937f..9c16936 100644 --- a/drivers/gpu/drm/drm_atomic_state_helper.c +++ b/drivers/gpu/drm/drm_atomic_state_helper.c @@ -31,6 +31,7 @@ #include <drm/drm_device.h> #include <drm/drm_plane.h> #include <drm/drm_print.h> +#include <drm/drm_vblank.h> #include <drm/drm_writeback.h> #include <linux/slab.h> @@ -76,6 +77,9 @@ if (crtc_state) crtc_state->crtc = crtc; + if (drm_dev_has_vblank(crtc->dev)) + drm_crtc_vblank_reset(crtc); + crtc->state = crtc_state; } EXPORT_SYMBOL(__drm_atomic_helper_crtc_reset); diff --git a/drivers/gpu/drm/msm/disp/mdp5/mdp5_crtc.c b/drivers/gpu/drm/msm/disp/mdp5/mdp5_crtc.c index 3951468..dbfd113 100644 --- a/drivers/gpu/drm/msm/disp/mdp5/mdp5_crtc.c +++ b/drivers/gpu/drm/msm/disp/mdp5/mdp5_crtc.c @@ -1043,8 +1043,6 @@ static void mdp5_crtc_reset(struct drm_crtc *crtc) mdp5_crtc_destroy_state(crtc, crtc->state); __drm_atomic_helper_crtc_reset(crtc, &mdp5_cstate->base); - - drm_crtc_vblank_reset(crtc); } static const struct drm_crtc_funcs mdp5_crtc_funcs = { diff --git a/drivers/gpu/drm/omapdrm/omap_crtc.c b/drivers/gpu/drm/omapdrm/omap_crtc.c index f5e1880..cfeb424 100644 --- a/drivers/gpu/drm/omapdrm/omap_crtc.c +++ b/drivers/gpu/drm/omapdrm/omap_crtc.c @@ -698,14 +698,16 @@ static int omap_crtc_atomic_get_property(struct drm_crtc *crtc, static void omap_crtc_reset(struct drm_crtc *crtc) { + struct omap_crtc_state *state; + if (crtc->state) __drm_atomic_helper_crtc_destroy_state(crtc->state); kfree(crtc->state); - crtc->state = kzalloc(sizeof(struct omap_crtc_state), GFP_KERNEL); - if (crtc->state) - crtc->state->crtc = crtc; + state = kzalloc(sizeof(*state), GFP_KERNEL); + if (state) } static struct drm_crtc_state * diff --git a/drivers/gpu/drm/omapdrm/omap_drv.c b/drivers/gpu/drm/omapdrm/omap_drv.c index 2983c00..672b0d3 100644 --- a/drivers/gpu/drm/omapdrm/omap_drv.c +++ b/drivers/gpu/drm/omapdrm/omap_drv.c @@ -557,7 +557,6 @@ static int omapdrm_init(struct omap_drm_private *priv, struct device *dev) { const struct soc_device_attribute *soc; struct drm_device *ddev; - unsigned int i; int ret; DBG("%s", dev_name(dev)); @@ -604,9 +603,6 @@ static int omapdrm_init(struct omap_drm_private *priv, struct device *dev) goto err_cleanup_modeset; } - for (i = 0; i < priv->num_pipes; i++) - drm_crtc_vblank_off(priv->pipes[i].crtc); - omap_fbdev_init(ddev); drm_kms_helper_poll_init(ddev); diff --git a/drivers/gpu/drm/rcar-du/rcar_du_crtc.c b/drivers/gpu/drm/rcar-du/rcar_du_crtc.c index 2da46e3..6d0280c 100644 --- a/drivers/gpu/drm/rcar-du/rcar_du_crtc.c +++ b/drivers/gpu/drm/rcar-du/rcar_du_crtc.c @@ -910,8 +910,7 @@ static void rcar_du_crtc_reset(struct drm_crtc *crtc) state->crc.source = VSP1_DU_CRC_NONE; state->crc.index = 0; - crtc->state = &state->state; - crtc->state->crtc = crtc; + __drm_atomic_helper_crtc_reset(crtc, &state->state); } static int rcar_du_crtc_enable_vblank(struct drm_crtc *crtc) @@ -1196,9 +1195,6 @@ int rcar_du_crtc_create(struct rcar_du_group *rgrp, unsigned int swindex, drm_crtc_helper_add(crtc, &crtc_helper_funcs); - /* Start with vertical blanking interrupt reporting disabled. */ - drm_crtc_vblank_off(crtc); - /* Register the interrupt handler. */ if (rcar_du_has(rcdu, RCAR_DU_FEATURE_CRTC_IRQ_CLOCK)) { /* The IRQ's are associated with the CRTC (sw)index. */ diff --git a/drivers/gpu/drm/tegra/dc.c b/drivers/gpu/drm/tegra/dc.c index 617cbe4..75c7068 100644 --- a/drivers/gpu/drm/tegra/dc.c +++ b/drivers/gpu/drm/tegra/dc.c @@ -1166,7 +1166,6 @@ static void tegra_crtc_reset(struct drm_crtc *crtc) tegra_crtc_atomic_destroy_state(crtc, crtc->state); __drm_atomic_helper_crtc_reset(crtc, &state->base); - drm_crtc_vblank_reset(crtc); } static struct drm_crtc_state * [ 101.335429] ------------[ cut here ]------------ [ 101.336576] WARNING: CPU: 1 PID: 0 at drivers/gpu/drm/vkms/vkms_crtc.c:91 vkms_get_vblank_timestamp+0x10a/0x140 [ 101.338952] Modules linked in: [ 101.339701] CPU: 1 PID: 0 Comm: swapper/1 Not tainted 5.4.121-rc1-syzk #1 [ 101.344331] RIP: 0010:vkms_get_vblank_timestamp+0x10a/0x140 [ 101.345660] Code: 03 80 3c 02 00 75 4f 4d 2b b5 80 10 00 00 4d 89 34 24 e8 d9 4e a7 fc b8 01 00 00 00 5b 41 5c 41 5d 41 5e 5d c3 e8 c6 4e a7 fc <0f> 0b eb e4 e8 3d a0 e6 fc e9 27 ff ff ff e8 33 a0 e6 fc eb 91 4c [ 101.351293] RAX: ffff888107a65d00 RBX: 000000179647991a RCX: ffffffff84cde2af [ 101.352976] RDX: 0000000000000100 RSI: ffffffff84cde2fa RDI: 0000000000000006 [ 101.354662] RBP: ffff88810b289ba8 R08: ffff888107a65d00 R09: ffffed1021651398 [ 101.356361] R10: ffffed1021651398 R11: 0000000000000003 R12: ffff88810b289cb0 [ 101.358037] R13: ffff88810a89c000 R14: 000000179647991a R15: 0000000000004e20 [ 101.359718] FS: 0000000000000000(0000) GS:ffff88810b280000(0000) knlGS:0000000000000000 [ 101.361627] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 101.362992] CR2: 00007f82b0154000 CR3: 0000000109460000 CR4: 00000000000006e0 [ 101.364684] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 101.366369] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 101.368043] Call Trace: [ 101.368652] <IRQ> [ 101.369159] ? vkms_crtc_atomic_flush+0x2d0/0x2d0 [ 101.370296] drm_get_last_vbltimestamp+0x106/0x1b0 [ 101.371446] ? drm_crtc_set_max_vblank_count+0x1a0/0x1a0 [ 101.372715] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 101.374001] drm_update_vblank_count+0x17a/0x800 [ 101.375107] ? store_vblank+0x1d0/0x1d0 [ 101.376038] ? __kasan_check_write+0x14/0x20 [ 101.377071] drm_vblank_disable_and_save+0x13a/0x3d0 [ 101.378265] ? vblank_disable_fn+0x101/0x180 [ 101.379296] vblank_disable_fn+0x14b/0x180 [ 101.380282] ? drm_vblank_disable_and_save+0x3d0/0x3d0 [ 101.381508] call_timer_fn+0x50/0x310 [ 101.382393] ? drm_vblank_disable_and_save+0x3d0/0x3d0 [ 101.383621] ? drm_vblank_disable_and_save+0x3d0/0x3d0 [ 101.384849] run_timer_softirq+0x76f/0x13e0 [ 101.385857] ? del_timer_sync+0xb0/0xb0 [ 101.386792] ? irq_work_interrupt+0xf/0x20 [ 101.387776] ? irq_work_interrupt+0xa/0x20 [ 101.388761] __do_softirq+0x18d/0x623 [ 101.389647] irq_exit+0x1fc/0x220 [ 101.390454] smp_apic_timer_interrupt+0xf0/0x380 [ 101.391565] apic_timer_interrupt+0xf/0x20 [ 101.392547] </IRQ> [ 101.393073] RIP: 0010:native_safe_halt+0x12/0x20 [ 101.394178] Code: 96 fe ff ff 48 89 df e8 ac c1 fc f3 eb 92 90 90 90 90 90 90 90 90 90 90 55 48 89 e5 e9 07 00 00 00 0f 00 2d 10 ee 50 00 fb f4 <5d> c3 66 90 66 2e 0f 1f 84 00 00 00 00 00 55 48 89 e5 e9 07 00 00 [ 101.398541] RSP: 0018:ffff888107aafd48 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff13 [ 101.400326] RAX: ffffffff8db7b830 RBX: ffff888107a65d00 RCX: ffffffff8db7c532 [ 101.402004] RDX: 1ffff11020f4cba0 RSI: 0000000000000008 RDI: ffff888107a65d00 [ 101.403680] RBP: ffff888107aafd48 R08: ffffed1020f4cba1 R09: ffffed1020f4cba1 [ 101.405361] R10: ffffed1020f4cba0 R11: ffff888107a65d07 R12: 0000000000000001 [ 101.407041] R13: 0000000000000001 R14: 0000000000000000 R15: 0000000000000000 [ 101.408729] ? __cpuidle_text_start+0x8/0x8 [ 101.409735] ? default_idle_call+0x32/0x70 [ 101.410722] default_idle+0x24/0x2c0 [ 101.411589] arch_cpu_idle+0x15/0x20 [ 101.412459] default_idle_call+0x5f/0x70 [ 101.413405] do_idle+0x30f/0x3d0 [ 101.414185] ? arch_cpu_idle_exit+0x40/0x40 [ 101.415188] ? complete+0x67/0x80 [ 101.415992] cpu_startup_entry+0x1d/0x20 [ 101.416937] start_secondary+0x2ec/0x3d0 [ 101.417879] ? set_cpu_sibling_map+0x2620/0x2620 [ 101.418986] secondary_startup_64+0xb6/0xc0 [ 101.420001] ---[ end trace 6143b67a4d795a3a ]--- Thank you, George

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Linux-stable-mirror May 2021