January 2025 - Linux-stable-mirror

by Deucher, Alexander

[Public] Hi Greg, Sasha, The original patch 73dae652dcac (drm/amdgpu: rework resume handling for display (v2)), was only targeted at kernels 6.11 and newer. It did not apply cleanly to 6.12 so I backported it and it backport landed as 99a02eab8251 ("drm/amdgpu: rework resume handling for display (v2)"), however there was a bug in the backport that was subsequently fixed in 063d380ca28e ("drm/amdgpu: fix backport of commit 73dae652dcac"). None of this was intended for kernels older than 6.11, however the original backport eventually landed in 6.6, 6.1, and 5.15. Please revert the change from kernels 6.6, 6.1, and 5.15. 6.6.y: Please revert 2daba7d857e4 ("drm/amdgpu: rework resume handling for display (v2)"). 6.1.y: Please revert c807ab3a861f ("drm/amdgpu: rework resume handling for display (v2)"). 5.15.y: Please revert d897650c5897 ("drm/amdgpu: rework resume handling for display (v2)"). Thanks, Alex

5 months, 2 weeks

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[PATCH v2 2/2] arm64: dts: rockchip: Disable DMA for uart5 on px30-ringneck

by Lukasz Czechowski

UART controllers without flow control seem to behave unstable in case DMA is enabled. The issues were indicated in the message: https://lore.kernel.org/linux-arm-kernel/CAMdYzYpXtMocCtCpZLU_xuWmOp2Ja_v0A… In case of PX30-uQ7 Ringneck SoM, it was noticed that after couple of hours of UART communication, the CPU stall was occurring, leading to the system becoming unresponsive. After disabling the DMA, extensive UART communication tests for up to two weeks were performed, and no issues were further observed. The flow control pins for uart5 are not available on PX30-uQ7 Ringneck, as configured by pinctrl-0, so the DMA nodes were removed on SoM dtsi. Cc: stable(a)vger.kernel.org Fixes: c484cf93f61b ("arm64: dts: rockchip: add PX30-µQ7 (Ringneck) SoM with Haikou baseboard") Reviewed-by: Quentin Schulz <quentin.schulz(a)cherry.de> Signed-off-by: Lukasz Czechowski <lukasz.czechowski(a)thaumatec.com> --- arch/arm64/boot/dts/rockchip/px30-ringneck.dtsi | 2 ++ 1 file changed, 2 insertions(+) diff --git a/arch/arm64/boot/dts/rockchip/px30-ringneck.dtsi b/arch/arm64/boot/dts/rockchip/px30-ringneck.dtsi index 2c87005c89bd3..e80412abec081 100644 --- a/arch/arm64/boot/dts/rockchip/px30-ringneck.dtsi +++ b/arch/arm64/boot/dts/rockchip/px30-ringneck.dtsi @@ -397,6 +397,8 @@ &u2phy_host { }; &uart5 { + /delete-property/ dmas; + /delete-property/ dma-names; pinctrl-0 = <&uart5_xfer>; }; -- 2.43.0

5 months, 2 weeks

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[PATCH v2 1/2] arm64: dts: rockchip: Move uart5 pin configuration to SoM dtsi

by Lukasz Czechowski

In the PX30-uQ7 (Ringneck) SoM, the hardware CTS and RTS pins for uart5 cannot be used for the UART CTS/RTS, because they are already allocated for different purposes. CTS pin is routed to SUS_S3# signal, while RTS pin is used internally and is not available on Q7 connector. Move definition of the pinctrl-0 property from px30-ringneck-haikou.dts to px30-ringneck.dtsi. This commit is a dependency to next commit in the patch series, that disables DMA for uart5. Cc: stable(a)vger.kernel.org Reviewed-by: Quentin Schulz <quentin.schulz(a)cherry.de> Signed-off-by: Lukasz Czechowski <lukasz.czechowski(a)thaumatec.com> --- arch/arm64/boot/dts/rockchip/px30-ringneck-haikou.dts | 1 - arch/arm64/boot/dts/rockchip/px30-ringneck.dtsi | 4 ++++ 2 files changed, 4 insertions(+), 1 deletion(-) diff --git a/arch/arm64/boot/dts/rockchip/px30-ringneck-haikou.dts b/arch/arm64/boot/dts/rockchip/px30-ringneck-haikou.dts index e4517f47d519c..eb9470a00e549 100644 --- a/arch/arm64/boot/dts/rockchip/px30-ringneck-haikou.dts +++ b/arch/arm64/boot/dts/rockchip/px30-ringneck-haikou.dts @@ -226,7 +226,6 @@ &uart0 { }; &uart5 { - pinctrl-0 = <&uart5_xfer>; rts-gpios = <&gpio0 RK_PB5 GPIO_ACTIVE_HIGH>; status = "okay"; }; diff --git a/arch/arm64/boot/dts/rockchip/px30-ringneck.dtsi b/arch/arm64/boot/dts/rockchip/px30-ringneck.dtsi index ae050cc6cd050..2c87005c89bd3 100644 --- a/arch/arm64/boot/dts/rockchip/px30-ringneck.dtsi +++ b/arch/arm64/boot/dts/rockchip/px30-ringneck.dtsi @@ -396,6 +396,10 @@ &u2phy_host { status = "okay"; }; +&uart5 { + pinctrl-0 = <&uart5_xfer>; +}; + /* Mule UCAN */ &usb_host0_ehci { status = "okay"; -- 2.43.0

5 months, 2 weeks

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NULL pointer dereference in apparmor's profile_transition v6.12

by Paul Kramme

Hello, with v6.12 we encountered a kernel BUG (panic on our systems) that is caused by a NULL pointer dereference inside the apparmor's profile_transition code. I've contacted John Johansen as the maintainer for the apparmor system, and he pointed me to 17d0d04f3c99 as a fix for that issue. That commit has now landed in v6.13, would it be possible to backport this to v6.12? Commit is 17d0d04f3c99 apparmor: allocate xmatch for nullpdb inside aa_alloc_null Thanks, Paul

5 months, 2 weeks

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FAILED: patch "[PATCH] iio: imu: inv_icm42600: fix spi burst write not supported" failed to apply to 5.15-stable tree

by gregkh＠linuxfoundation.org

The patch below does not apply to the 5.15-stable tree. If someone wants it applied there, or to any other stable or longterm tree, then please email the backport, including the original git commit id to <stable(a)vger.kernel.org>. To reproduce the conflict and resubmit, you may use the following commands: git fetch https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/ linux-5.15.y git checkout FETCH_HEAD git cherry-pick -x c0f866de4ce447bca3191b9cefac60c4b36a7922 # <resolve conflicts, build, test, etc.> git commit -s git send-email --to '<stable(a)vger.kernel.org>' --in-reply-to '2025011348-amaretto-wasabi-3e96@gregkh' --subject-prefix 'PATCH 5.15.y' HEAD^.. Possible dependencies: thanks, greg k-h ------------------ original commit in Linus's tree ------------------ From c0f866de4ce447bca3191b9cefac60c4b36a7922 Mon Sep 17 00:00:00 2001 From: Jean-Baptiste Maneyrol <jean-baptiste.maneyrol(a)tdk.com> Date: Tue, 12 Nov 2024 10:30:10 +0100 Subject: [PATCH] iio: imu: inv_icm42600: fix spi burst write not supported Burst write with SPI is not working for all icm42600 chips. It was only used for setting user offsets with regmap_bulk_write. Add specific SPI regmap config for using only single write with SPI. Fixes: 9f9ff91b775b ("iio: imu: inv_icm42600: add SPI driver for inv_icm42600 driver") Cc: stable(a)vger.kernel.org Signed-off-by: Jean-Baptiste Maneyrol <jean-baptiste.maneyrol(a)tdk.com> Link: https://patch.msgid.link/20241112-inv-icm42600-fix-spi-burst-write-not-supp… Signed-off-by: Jonathan Cameron <Jonathan.Cameron(a)huawei.com> diff --git a/drivers/iio/imu/inv_icm42600/inv_icm42600.h b/drivers/iio/imu/inv_icm42600/inv_icm42600.h index 3a07e43e4cf1..18787a43477b 100644 --- a/drivers/iio/imu/inv_icm42600/inv_icm42600.h +++ b/drivers/iio/imu/inv_icm42600/inv_icm42600.h @@ -403,6 +403,7 @@ struct inv_icm42600_sensor_state { typedef int (*inv_icm42600_bus_setup)(struct inv_icm42600_state *); extern const struct regmap_config inv_icm42600_regmap_config; +extern const struct regmap_config inv_icm42600_spi_regmap_config; extern const struct dev_pm_ops inv_icm42600_pm_ops; const struct iio_mount_matrix * diff --git a/drivers/iio/imu/inv_icm42600/inv_icm42600_core.c b/drivers/iio/imu/inv_icm42600/inv_icm42600_core.c index 561d245c1d64..e43538e536f0 100644 --- a/drivers/iio/imu/inv_icm42600/inv_icm42600_core.c +++ b/drivers/iio/imu/inv_icm42600/inv_icm42600_core.c @@ -87,6 +87,21 @@ const struct regmap_config inv_icm42600_regmap_config = { }; EXPORT_SYMBOL_NS_GPL(inv_icm42600_regmap_config, "IIO_ICM42600"); +/* define specific regmap for SPI not supporting burst write */ +const struct regmap_config inv_icm42600_spi_regmap_config = { + .name = "inv_icm42600", + .reg_bits = 8, + .val_bits = 8, + .max_register = 0x4FFF, + .ranges = inv_icm42600_regmap_ranges, + .num_ranges = ARRAY_SIZE(inv_icm42600_regmap_ranges), + .volatile_table = inv_icm42600_regmap_volatile_accesses, + .rd_noinc_table = inv_icm42600_regmap_rd_noinc_accesses, + .cache_type = REGCACHE_RBTREE, + .use_single_write = true, +}; +EXPORT_SYMBOL_NS_GPL(inv_icm42600_spi_regmap_config, "IIO_ICM42600"); + struct inv_icm42600_hw { uint8_t whoami; const char *name; diff --git a/drivers/iio/imu/inv_icm42600/inv_icm42600_spi.c b/drivers/iio/imu/inv_icm42600/inv_icm42600_spi.c index c55d8e672183..2bd2c4c8e50c 100644 --- a/drivers/iio/imu/inv_icm42600/inv_icm42600_spi.c +++ b/drivers/iio/imu/inv_icm42600/inv_icm42600_spi.c @@ -59,7 +59,8 @@ static int inv_icm42600_probe(struct spi_device *spi) return -EINVAL; chip = (uintptr_t)match; - regmap = devm_regmap_init_spi(spi, &inv_icm42600_regmap_config); + /* use SPI specific regmap */ + regmap = devm_regmap_init_spi(spi, &inv_icm42600_spi_regmap_config); if (IS_ERR(regmap)) return PTR_ERR(regmap);

5 months, 2 weeks

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[PATCH 5.10] RDMA/hns: Fix deadlock on SRQ async events.

by Denis Arefev

From: Chengchang Tang <tangchengchang(a)huawei.com> commit b46494b6f9c19f141114a57729e198698f40af37 upstream. xa_lock for SRQ table may be required in AEQ. Use xa_store_irq()/ xa_erase_irq() to avoid deadlock. Fixes: 81fce6291d99 ("RDMA/hns: Add SRQ asynchronous event support") Signed-off-by: Chengchang Tang <tangchengchang(a)huawei.com> Signed-off-by: Junxian Huang <huangjunxian6(a)hisilicon.com> Link: https://lore.kernel.org/r/20240412091616.370789-5-huangjunxian6@hisilicon.c… Signed-off-by: Leon Romanovsky <leon(a)kernel.org> [Denis: minor fix to resolve merge conflict.] Signed-off-by: Denis Arefev <arefev(a)swemel.ru> --- Backport fix for CVE-2024-38591 Link: https://nvd.nist.gov/vuln/detail/cve-2024-38591 --- drivers/infiniband/hw/hns/hns_roce_main.c | 1 + drivers/infiniband/hw/hns/hns_roce_srq.c | 6 +++--- 2 files changed, 4 insertions(+), 3 deletions(-) diff --git a/drivers/infiniband/hw/hns/hns_roce_main.c b/drivers/infiniband/hw/hns/hns_roce_main.c index f62162771db5..a0f243ffa5b5 100644 --- a/drivers/infiniband/hw/hns/hns_roce_main.c +++ b/drivers/infiniband/hw/hns/hns_roce_main.c @@ -37,6 +37,7 @@ #include <rdma/ib_smi.h> #include <rdma/ib_user_verbs.h> #include <rdma/ib_cache.h> +#include "hnae3.h" #include "hns_roce_common.h" #include "hns_roce_device.h" #include <rdma/hns-abi.h> diff --git a/drivers/infiniband/hw/hns/hns_roce_srq.c b/drivers/infiniband/hw/hns/hns_roce_srq.c index 02e2416b5fed..6a510dbe5849 100644 --- a/drivers/infiniband/hw/hns/hns_roce_srq.c +++ b/drivers/infiniband/hw/hns/hns_roce_srq.c @@ -120,7 +120,7 @@ static int alloc_srqc(struct hns_roce_dev *hr_dev, struct hns_roce_srq *srq, goto err_out; } - ret = xa_err(xa_store(&srq_table->xa, srq->srqn, srq, GFP_KERNEL)); + ret = xa_err(xa_store_irq(&srq_table->xa, srq->srqn, srq, GFP_KERNEL)); if (ret) { ibdev_err(ibdev, "failed to store SRQC, ret = %d.\n", ret); goto err_put; @@ -149,7 +149,7 @@ static int alloc_srqc(struct hns_roce_dev *hr_dev, struct hns_roce_srq *srq, return ret; err_xa: - xa_erase(&srq_table->xa, srq->srqn); + xa_erase_irq(&srq_table->xa, srq->srqn); err_put: hns_roce_table_put(hr_dev, &srq_table->table, srq->srqn); @@ -169,7 +169,7 @@ static void free_srqc(struct hns_roce_dev *hr_dev, struct hns_roce_srq *srq) dev_err(hr_dev->dev, "DESTROY_SRQ failed (%d) for SRQN %06lx\n", ret, srq->srqn); - xa_erase(&srq_table->xa, srq->srqn); + xa_erase_irq(&srq_table->xa, srq->srqn); if (atomic_dec_and_test(&srq->refcount)) complete(&srq->free); -- 2.43.0

5 months, 2 weeks

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[PATCH 6.6 000/129] 6.6.72-rc1 review

by Greg Kroah-Hartman

This is the start of the stable review cycle for the 6.6.72 release. There are 129 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 Fri, 17 Jan 2025 10:34:58 +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/v6.x/stable-review/patch-6.6.72-rc1… or in the git tree and branch at: git://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable-rc.git linux-6.6.y and the diffstat can be found below. thanks, greg k-h ------------- Pseudo-Shortlog of commits: Greg Kroah-Hartman <gregkh(a)linuxfoundation.org> Linux 6.6.72-rc1 Daniel Golle <daniel(a)makrotopia.org> drm/mediatek: Only touch DISP_REG_OVL_PITCH_MSB if AFBC is supported Alexandre Ghiti <alexghiti(a)rivosinc.com> riscv: Fix text patching when IPI are used Liu Shixin <liushixin2(a)huawei.com> mm: hugetlb: independent PMD page table shared count David Hildenbrand <david(a)redhat.com> mm/hugetlb: enforce that PMD PT sharing has split PMD PT locks Peter Xu <peterx(a)redhat.com> fs/Kconfig: make hugetlbfs a menuconfig Alexander Gordeev <agordeev(a)linux.ibm.com> pgtable: fix s390 ptdesc field comments Tvrtko Ursulin <tvrtko.ursulin(a)igalia.com> workqueue: Do not warn when cancelling WQ_MEM_RECLAIM work from !WQ_MEM_RECLAIM worker Tejun Heo <tj(a)kernel.org> workqueue: Update lock debugging code Xuewen Yan <xuewen.yan(a)unisoc.com> workqueue: Add rcu lock check at the end of work item execution Joe Hattori <joe(a)pf.is.s.u-tokyo.ac.jp> pmdomain: imx: gpcv2: fix an OF node reference leak in imx_gpcv2_probe() Krzysztof Kozlowski <krzysztof.kozlowski(a)linaro.org> pmdomain: imx: gpcv2: Simplify with scoped for each OF child loop Peter Geis <pgwipeout(a)gmail.com> arm64: dts: rockchip: add hevc power domain clock to rk3328 Yu Kuai <yukuai3(a)huawei.com> block, bfq: fix waker_bfqq UAF after bfq_split_bfqq() Daniil Stas <daniil.stas(a)posteo.net> hwmon: (drivetemp) Fix driver producing garbage data when SCSI errors occur Jesse Taube <Mr.Bossman075(a)gmail.com> ARM: dts: imxrt1050: Fix clocks for mmc Jens Axboe <axboe(a)kernel.dk> io_uring/eventfd: ensure io_eventfd_signal() defers another RCU period Nam Cao <namcao(a)linutronix.de> riscv: kprobes: Fix incorrect address calculation Uwe Kleine-König <u.kleine-koenig(a)baylibre.com> iio: adc: ad7124: Disable all channels at probe time Joe Hattori <joe(a)pf.is.s.u-tokyo.ac.jp> iio: inkern: call iio_device_put() only on mapped devices Joe Hattori <joe(a)pf.is.s.u-tokyo.ac.jp> iio: adc: at91: call input_free_device() on allocated iio_dev Fabio Estevam <festevam(a)gmail.com> iio: adc: ti-ads124s08: Use gpiod_set_value_cansleep() Carlos Song <carlos.song(a)nxp.com> iio: gyro: fxas21002c: Fix missing data update in trigger handler Javier Carrasco <javier.carrasco.cruz(a)gmail.com> iio: adc: ti-ads8688: fix information leak in triggered buffer Javier Carrasco <javier.carrasco.cruz(a)gmail.com> iio: adc: rockchip_saradc: fix information leak in triggered buffer Javier Carrasco <javier.carrasco.cruz(a)gmail.com> iio: imu: kmx61: fix information leak in triggered buffer Javier Carrasco <javier.carrasco.cruz(a)gmail.com> iio: light: vcnl4035: fix information leak in triggered buffer Javier Carrasco <javier.carrasco.cruz(a)gmail.com> iio: dummy: iio_simply_dummy_buffer: fix information leak in triggered buffer Javier Carrasco <javier.carrasco.cruz(a)gmail.com> iio: pressure: zpa2326: fix information leak in triggered buffer Ingo Rohloff <ingo.rohloff(a)lauterbach.com> usb: gadget: configfs: Ignore trailing LF for user strings to cdev Akash M <akash.m5(a)samsung.com> usb: gadget: f_fs: Remove WARN_ON in functionfs_bind Dan Carpenter <dan.carpenter(a)linaro.org> usb: typec: tcpm/tcpci_maxim: fix error code in max_contaminant_read_resistance_kohm() Prashanth K <quic_prashk(a)quicinc.com> usb: gadget: f_uac2: Fix incorrect setting of bNumEndpoints Joe Hattori <joe(a)pf.is.s.u-tokyo.ac.jp> usb: chipidea: ci_hdrc_imx: decrement device's refcount in .remove() and in the error path of .probe() Takashi Iwai <tiwai(a)suse.de> usb: gadget: midi2: Reverse-select at the right place Ma Ke <make_ruc2021(a)163.com> usb: fix reference leak in usb_new_device() Kai-Heng Feng <kaihengf(a)nvidia.com> USB: core: Disable LPM only for non-suspended ports Jun Yan <jerrysteve1101(a)gmail.com> USB: usblp: return error when setting unsupported protocol Prashanth K <quic_prashk(a)quicinc.com> usb: dwc3-am62: Disable autosuspend during remove Rick Edgecombe <rick.p.edgecombe(a)intel.com> x86/fpu: Ensure shadow stack is active before "getting" registers Lianqin Hu <hulianqin(a)vivo.com> usb: gadget: u_serial: Disable ep before setting port to null to fix the crash caused by port being null Ilpo Järvinen <ilpo.jarvinen(a)linux.intel.com> tty: serial: 8250: Fix another runtime PM usage counter underflow Rengarajan S <rengarajan.s(a)microchip.com> misc: microchip: pci1xxxx: Resolve return code mismatch during GPIO set config Rengarajan S <rengarajan.s(a)microchip.com> misc: microchip: pci1xxxx: Resolve kernel panic during GPIO IRQ handling Li Huafei <lihuafei1(a)huawei.com> topology: Keep the cpumask unchanged when printing cpumap André Draszik <andre.draszik(a)linaro.org> usb: dwc3: gadget: fix writing NYET threshold Johan Hovold <johan(a)kernel.org> USB: serial: cp210x: add Phoenix Contact UPS Device Lubomir Rintel <lrintel(a)redhat.com> usb-storage: Add max sectors quirk for Nokia 208 Zicheng Qu <quzicheng(a)huawei.com> staging: iio: ad9832: Correct phase range check Zicheng Qu <quzicheng(a)huawei.com> staging: iio: ad9834: Correct phase range check Michal Hrusecky <michal.hrusecky(a)turris.com> USB: serial: option: add Neoway N723-EA support Chukun Pan <amadeus(a)jmu.edu.cn> USB: serial: option: add MeiG Smart SRM815 Milan Broz <gmazyland(a)gmail.com> dm-verity FEC: Fix RS FEC repair for roots unaligned to block size (take 2) Ye Bin <yebin10(a)huawei.com> f2fs: fix null-ptr-deref in f2fs_submit_page_bio() Pavel Begunkov <asml.silence(a)gmail.com> io_uring/timeout: fix multishot updates Melissa Wen <mwen(a)igalia.com> drm/amd/display: increase MAX_SURFACES to the value supported by hw Jesse.zhang(a)amd.com <Jesse.zhang(a)amd.com> drm/amdkfd: fixed page fault when enable MES shader debugger Hans de Goede <hdegoede(a)redhat.com> ACPI: resource: Add Asus Vivobook X1504VAP to irq1_level_low_skip_override[] Hans de Goede <hdegoede(a)redhat.com> ACPI: resource: Add TongFang GM5HG0A to irq1_edge_low_force_override[] Nam Cao <namcao(a)linutronix.de> riscv: Fix sleeping in invalid context in die() Meetakshi Setiya <msetiya(a)microsoft.com> smb: client: sync the root session and superblock context passwords before automounting Joe Hattori <joe(a)pf.is.s.u-tokyo.ac.jp> thermal: of: fix OF node leak in of_thermal_zone_find() Roman Li <Roman.Li(a)amd.com> drm/amd/display: Add check for granularity in dml ceil/floor helpers Namjae Jeon <linkinjeon(a)kernel.org> ksmbd: Implement new SMB3 POSIX type Matthieu Baerts (NGI0) <matttbe(a)kernel.org> sctp: sysctl: plpmtud_probe_interval: avoid using current->nsproxy Matthieu Baerts (NGI0) <matttbe(a)kernel.org> sctp: sysctl: udp_port: avoid using current->nsproxy Matthieu Baerts (NGI0) <matttbe(a)kernel.org> sctp: sysctl: auth_enable: avoid using current->nsproxy Matthieu Baerts (NGI0) <matttbe(a)kernel.org> sctp: sysctl: rto_min/max: avoid using current->nsproxy Matthieu Baerts (NGI0) <matttbe(a)kernel.org> sctp: sysctl: cookie_hmac_alg: avoid using current->nsproxy Matthieu Baerts (NGI0) <matttbe(a)kernel.org> mptcp: sysctl: sched: avoid using current->nsproxy Mikulas Patocka <mpatocka(a)redhat.com> dm-ebs: don't set the flag DM_TARGET_PASSES_INTEGRITY Manivannan Sadhasivam <mani(a)kernel.org> scsi: ufs: qcom: Power off the PHY if it was already powered on in ufs_qcom_power_up_sequence() Krister Johansen <kjlx(a)templeofstupid.com> dm thin: make get_first_thin use rcu-safe list first function Xu Lu <luxu.kernel(a)bytedance.com> riscv: mm: Fix the out of bound issue of vmemmap address Javier Carrasco <javier.carrasco.cruz(a)gmail.com> cpuidle: riscv-sbi: fix device node release in early exit of for_each_possible_cpu He Wang <xw897002528(a)gmail.com> ksmbd: fix unexpectedly changed path in ksmbd_vfs_kern_path_locked Maciej S. Szmigiero <mail(a)maciej.szmigiero.name> platform/x86/amd/pmc: Only disable IRQ1 wakeup where i8042 actually enabled it David Howells <dhowells(a)redhat.com> afs: Fix the maximum cell name length Wentao Liang <liangwentao(a)iscas.ac.cn> ksmbd: fix a missing return value check bug Liankun Yang <liankun.yang(a)mediatek.com> drm/mediatek: Add return value check when reading DPCD Liankun Yang <liankun.yang(a)mediatek.com> drm/mediatek: Fix mode valid issue for dp Liankun Yang <liankun.yang(a)mediatek.com> drm/mediatek: Fix YCbCr422 color format issue for DP Arnd Bergmann <arnd(a)arndb.de> drm/mediatek: stop selecting foreign drivers Guoqing Jiang <guoqing.jiang(a)canonical.com> drm/mediatek: Set private->all_drm_private[i]->drm to NULL if mtk_drm_bind returns err Chenguang Zhao <zhaochenguang(a)kylinos.cn> net/mlx5: Fix variable not being completed when function returns Parker Newman <pnewman(a)connecttech.com> net: stmmac: dwmac-tegra: Read iommu stream id from device tree Toke Høiland-Jørgensen <toke(a)redhat.com> sched: sch_cake: add bounds checks to host bulk flow fairness counts Pablo Neira Ayuso <pablo(a)netfilter.org> netfilter: conntrack: clamp maximum hashtable size to INT_MAX Pablo Neira Ayuso <pablo(a)netfilter.org> netfilter: nf_tables: imbalance in flowtable binding Jean-Baptiste Maneyrol <jean-baptiste.maneyrol(a)tdk.com> iio: imu: inv_icm42600: fix timestamps after suspend if sensor is on Jan Beulich <jbeulich(a)suse.com> x86/mm/numa: Use NUMA_NO_NODE when calling memblock_set_node() Wei Yang <richard.weiyang(a)gmail.com> memblock tests: fix implicit declaration of function 'numa_valid_node' Alexandre Ghiti <alexghiti(a)rivosinc.com> riscv: Fix early ftrace nop patching Daniel Borkmann <daniel(a)iogearbox.net> tcp: Annotate data-race around sk->sk_mark in tcp_v4_send_reset Neeraj Sanjay Kale <neeraj.sanjaykale(a)nxp.com> Bluetooth: btnxpuart: Fix driver sending truncated data Luiz Augusto von Dentz <luiz.von.dentz(a)intel.com> Bluetooth: MGMT: Fix Add Device to responding before completing Luiz Augusto von Dentz <luiz.von.dentz(a)intel.com> Bluetooth: hci_sync: Fix not setting Random Address when required Jakub Kicinski <kuba(a)kernel.org> eth: gve: use appropriate helper to set xdp_features Kuniyuki Iwashima <kuniyu(a)amazon.com> ipvlan: Fix use-after-free in ipvlan_get_iflink(). Benjamin Coddington <bcodding(a)redhat.com> tls: Fix tls_sw_sendmsg error handling En-Wei Wu <en-wei.wu(a)canonical.com> igc: return early when failing to read EECD register Jesse Brandeburg <jesse.brandeburg(a)intel.com> igc: field get conversion Przemyslaw Korba <przemyslaw.korba(a)intel.com> ice: fix incorrect PHY settings for 100 GB/s Anumula Murali Mohan Reddy <anumula(a)chelsio.com> cxgb4: Avoid removal of uninserted tid Kalesh AP <kalesh-anakkur.purayil(a)broadcom.com> bnxt_en: Fix possible memory leak when hwrm_req_replace fails Shannon Nelson <shannon.nelson(a)amd.com> pds_core: limit loop over fw name list Qu Wenruo <wqu(a)suse.com> btrfs: avoid NULL pointer dereference if no valid extent tree Jiawen Wu <jiawenwu(a)trustnetic.com> net: libwx: fix firmware mailbox abnormal return Eric Dumazet <edumazet(a)google.com> net_sched: cls_flow: validate TCA_FLOW_RSHIFT attribute Zhongqiu Duan <dzq.aishenghu0(a)gmail.com> tcp/dccp: allow a connection when sk_max_ack_backlog is zero Jason Xing <kernelxing(a)tencent.com> tcp/dccp: complete lockless accesses to sk->sk_max_ack_backlog Antonio Pastor <antonio.pastor(a)gmail.com> net: 802: LLC+SNAP OID:PID lookup on start of skb data Keisuke Nishimura <keisuke.nishimura(a)inria.fr> ieee802154: ca8210: Add missing check for kfifo_alloc() in ca8210_probe() Li Zhijian <lizhijian(a)fujitsu.com> selftests/alsa: Fix circular dependency involving global-timer Chen-Yu Tsai <wenst(a)chromium.org> ASoC: mediatek: disable buffer pre-allocation Shuming Fan <shumingf(a)realtek.com> ASoC: rt722: add delay time to wait for the calibration procedure Gao Xiang <xiang(a)kernel.org> erofs: fix PSI memstall accounting Gao Xiang <xiang(a)kernel.org> erofs: handle overlapped pclusters out of crafted images properly Amir Goldstein <amir73il(a)gmail.com> ovl: support encoding fid from inode with no alias Amir Goldstein <amir73il(a)gmail.com> ovl: pass realinode to ovl_encode_real_fh() instead of realdentry Amir Goldstein <amir73il(a)gmail.com> ovl: do not encode lower fh with upper sb_writers held Yuezhang Mo <Yuezhang.Mo(a)sony.com> exfat: fix the infinite loop in __exfat_free_cluster() Yuezhang Mo <Yuezhang.Mo(a)sony.com> exfat: fix the infinite loop in exfat_readdir() Ming-Hung Tsai <mtsai(a)redhat.com> dm array: fix cursor index when skipping across block boundaries Ming-Hung Tsai <mtsai(a)redhat.com> dm array: fix unreleased btree blocks on closing a faulty array cursor Ming-Hung Tsai <mtsai(a)redhat.com> dm array: fix releasing a faulty array block twice in dm_array_cursor_end Zhang Yi <yi.zhang(a)huawei.com> jbd2: flush filesystem device before updating tail sequence Zhang Yi <yi.zhang(a)huawei.com> jbd2: increase IO priority for writing revoke records Mike Rapoport (IBM) <rppt(a)kernel.org> memblock: use numa_valid_node() helper to check for invalid node ID Jan Beulich <jbeulich(a)suse.com> memblock: make memblock_set_node() also warn about use of MAX_NUMNODES ------------- Diffstat: Makefile | 4 +- arch/arm/boot/dts/nxp/imx/imxrt1050.dtsi | 2 +- arch/arm64/boot/dts/rockchip/rk3328.dtsi | 1 + arch/riscv/include/asm/cacheflush.h | 6 + arch/riscv/include/asm/page.h | 1 + arch/riscv/include/asm/patch.h | 1 + arch/riscv/include/asm/pgtable.h | 2 +- arch/riscv/kernel/ftrace.c | 47 ++++++- arch/riscv/kernel/patch.c | 16 ++- arch/riscv/kernel/probes/kprobes.c | 2 +- arch/riscv/kernel/traps.c | 6 +- arch/riscv/mm/init.c | 17 ++- arch/x86/kernel/fpu/regset.c | 3 +- arch/x86/mm/numa.c | 6 +- block/bfq-iosched.c | 12 +- drivers/acpi/resource.c | 18 +++ drivers/base/topology.c | 24 +++- drivers/bluetooth/btnxpuart.c | 1 + drivers/cpuidle/cpuidle-riscv-sbi.c | 4 +- drivers/gpu/drm/amd/amdkfd/kfd_debug.c | 17 +++ drivers/gpu/drm/amd/display/dc/dc.h | 2 +- .../gpu/drm/amd/display/dc/dml/dml_inline_defs.h | 8 ++ drivers/gpu/drm/mediatek/Kconfig | 5 - drivers/gpu/drm/mediatek/mtk_disp_ovl.c | 57 ++++----- drivers/gpu/drm/mediatek/mtk_dp.c | 46 ++++--- drivers/gpu/drm/mediatek/mtk_drm_drv.c | 2 + drivers/hwmon/drivetemp.c | 8 +- drivers/iio/adc/ad7124.c | 3 + drivers/iio/adc/at91_adc.c | 2 +- drivers/iio/adc/rockchip_saradc.c | 2 + drivers/iio/adc/ti-ads124s08.c | 4 +- drivers/iio/adc/ti-ads8688.c | 2 +- drivers/iio/dummy/iio_simple_dummy_buffer.c | 2 +- drivers/iio/gyro/fxas21002c_core.c | 11 +- drivers/iio/imu/inv_icm42600/inv_icm42600_core.c | 8 +- drivers/iio/imu/kmx61.c | 2 +- drivers/iio/inkern.c | 2 +- drivers/iio/light/vcnl4035.c | 2 +- drivers/iio/pressure/zpa2326.c | 2 + drivers/md/dm-ebs-target.c | 2 +- drivers/md/dm-thin.c | 5 +- drivers/md/dm-verity-fec.c | 39 ++++-- drivers/md/persistent-data/dm-array.c | 19 +-- drivers/misc/mchp_pci1xxxx/mchp_pci1xxxx_gpio.c | 4 +- drivers/net/ethernet/amd/pds_core/devlink.c | 2 +- drivers/net/ethernet/broadcom/bnxt/bnxt_ulp.c | 3 +- drivers/net/ethernet/chelsio/cxgb4/cxgb4_main.c | 5 +- drivers/net/ethernet/google/gve/gve_main.c | 14 ++- drivers/net/ethernet/intel/ice/ice_ptp_consts.h | 4 +- drivers/net/ethernet/intel/igc/igc_base.c | 12 +- drivers/net/ethernet/intel/igc/igc_i225.c | 5 +- drivers/net/ethernet/intel/igc/igc_main.c | 6 +- drivers/net/ethernet/intel/igc/igc_phy.c | 4 +- drivers/net/ethernet/mellanox/mlx5/core/cmd.c | 1 + drivers/net/ethernet/stmicro/stmmac/dwmac-tegra.c | 14 ++- drivers/net/ethernet/wangxun/libwx/wx_hw.c | 24 ++-- drivers/net/ieee802154/ca8210.c | 6 +- drivers/platform/x86/amd/pmc/pmc.c | 8 +- drivers/pmdomain/imx/gpcv2.c | 10 +- drivers/staging/iio/frequency/ad9832.c | 2 +- drivers/staging/iio/frequency/ad9834.c | 2 +- drivers/thermal/thermal_of.c | 1 + drivers/tty/serial/8250/8250_core.c | 3 + drivers/ufs/core/ufshcd-priv.h | 6 - drivers/ufs/core/ufshcd.c | 1 - drivers/ufs/host/ufs-qcom.c | 13 +- drivers/usb/chipidea/ci_hdrc_imx.c | 25 ++-- drivers/usb/class/usblp.c | 7 +- drivers/usb/core/hub.c | 6 +- drivers/usb/core/port.c | 7 +- drivers/usb/dwc3/core.h | 1 + drivers/usb/dwc3/dwc3-am62.c | 1 + drivers/usb/dwc3/gadget.c | 4 +- drivers/usb/gadget/Kconfig | 4 +- drivers/usb/gadget/configfs.c | 6 +- drivers/usb/gadget/function/f_fs.c | 2 +- drivers/usb/gadget/function/f_uac2.c | 1 + drivers/usb/gadget/function/u_serial.c | 8 +- drivers/usb/serial/cp210x.c | 1 + drivers/usb/serial/option.c | 4 +- drivers/usb/storage/unusual_devs.h | 7 ++ drivers/usb/typec/tcpm/maxim_contaminant.c | 4 +- fs/Kconfig | 24 ++-- fs/afs/afs.h | 2 +- fs/afs/afs_vl.h | 1 + fs/afs/vl_alias.c | 8 +- fs/afs/vlclient.c | 2 +- fs/btrfs/scrub.c | 4 + fs/erofs/zdata.c | 66 +++++----- fs/exfat/dir.c | 3 +- fs/exfat/fatent.c | 10 ++ fs/f2fs/super.c | 12 +- fs/jbd2/commit.c | 4 +- fs/jbd2/revoke.c | 2 +- fs/overlayfs/copy_up.c | 62 +++++---- fs/overlayfs/export.c | 49 ++++---- fs/overlayfs/namei.c | 41 ++++-- fs/overlayfs/overlayfs.h | 28 +++-- fs/overlayfs/super.c | 20 ++- fs/overlayfs/util.c | 10 ++ fs/smb/client/namespace.c | 19 ++- fs/smb/server/smb2pdu.c | 43 +++++++ fs/smb/server/smb2pdu.h | 10 ++ fs/smb/server/vfs.c | 3 +- include/linux/hugetlb.h | 5 +- include/linux/mm.h | 1 + include/linux/mm_types.h | 34 ++++- include/linux/numa.h | 5 + include/net/inet_connection_sock.h | 2 +- include/ufs/ufshcd.h | 2 - io_uring/io_uring.c | 13 +- io_uring/timeout.c | 4 +- kernel/workqueue.c | 68 ++++++---- mm/hugetlb.c | 24 ++-- mm/memblock.c | 24 ++-- net/802/psnap.c | 4 +- net/bluetooth/hci_sync.c | 11 +- net/bluetooth/mgmt.c | 38 +++++- net/core/link_watch.c | 10 +- net/ipv4/tcp_ipv4.c | 2 +- net/mptcp/ctrl.c | 11 +- net/netfilter/nf_conntrack_core.c | 5 +- net/netfilter/nf_tables_api.c | 15 ++- net/sched/cls_flow.c | 3 +- net/sched/sch_cake.c | 140 +++++++++++---------- net/sctp/sysctl.c | 14 ++- net/tls/tls_sw.c | 2 +- sound/soc/codecs/rt722-sdca.c | 7 +- .../soc/mediatek/common/mtk-afe-platform-driver.c | 4 +- tools/include/linux/numa.h | 5 + tools/testing/selftests/alsa/Makefile | 2 +- 131 files changed, 1032 insertions(+), 509 deletions(-)

5 months, 2 weeks

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Linux 6.6.73

by Greg Kroah-Hartman

I'm announcing the release of the 6.6.73 kernel. Only users of overlayfs need to upgrade, this release reverts some changes that were reported to be causing problems. Thanks to Ignat and Amir for the quick reporting on the issue. The updated 6.6.y git tree can be found at: git://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable.git linux-6.6.y and can be browsed at the normal kernel.org git web browser: https://git.kernel.org/?p=linux/kernel/git/stable/linux-stable.git;a=summary thanks, greg k-h ------------ Makefile | 2 - fs/overlayfs/copy_up.c | 62 ++++++++++++++++++----------------------------- fs/overlayfs/export.c | 49 ++++++++++++++++--------------------- fs/overlayfs/namei.c | 41 ++++++++----------------------- fs/overlayfs/overlayfs.h | 28 ++++++--------------- fs/overlayfs/super.c | 20 ++++----------- fs/overlayfs/util.c | 10 ------- 7 files changed, 72 insertions(+), 140 deletions(-) Greg Kroah-Hartman (4): Revert "ovl: support encoding fid from inode with no alias" Revert "ovl: pass realinode to ovl_encode_real_fh() instead of realdentry" Revert "ovl: do not encode lower fh with upper sb_writers held" Linux 6.6.73

5 months, 2 weeks

1
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[PATCH 2/2] atomic64: Use arch_spin_locks instead of raw_spin_locks

by Steven Rostedt

From: Steven Rostedt <rostedt(a)goodmis.org> raw_spin_locks can be traced by lockdep or tracing itself. Atomic64 operations can be used in the tracing infrastructure. When an architecture does not have true atomic64 operations it can use the generic version that disables interrupts and uses spin_locks. The tracing ring buffer code uses atomic64 operations for the time keeping. But because some architectures use the default operations, the locking inside the atomic operations can cause an infinite recursion. As atomic64 is an architecture specific operation, it should not be using raw_spin_locks() but instead arch_spin_locks as that is the purpose of arch_spin_locks. To be used in architecture specific implementations of generic infrastructure like atomic64 operations. Cc: stable(a)vger.kernel.org Fixes: c84897c0ff592 ("ring-buffer: Remove 32bit timestamp logic") Closes: https://lore.kernel.org/all/86fb4f86-a0e4-45a2-a2df-3154acc4f086@gaisler.co… Reported-by: Ludwig Rydberg <ludwig.rydberg(a)gaisler.com> Signed-off-by: Steven Rostedt (Google) <rostedt(a)goodmis.org> --- lib/atomic64.c | 78 +++++++++++++++++++++++++++++++------------------- 1 file changed, 48 insertions(+), 30 deletions(-) diff --git a/lib/atomic64.c b/lib/atomic64.c index caf895789a1e..1a72bba36d24 100644 --- a/lib/atomic64.c +++ b/lib/atomic64.c @@ -25,15 +25,15 @@ * Ensure each lock is in a separate cacheline. */ static union { - raw_spinlock_t lock; + arch_spinlock_t lock; char pad[L1_CACHE_BYTES]; } atomic64_lock[NR_LOCKS] __cacheline_aligned_in_smp = { [0 ... (NR_LOCKS - 1)] = { - .lock = __RAW_SPIN_LOCK_UNLOCKED(atomic64_lock.lock), + .lock = __ARCH_SPIN_LOCK_UNLOCKED, }, }; -static inline raw_spinlock_t *lock_addr(const atomic64_t *v) +static inline arch_spinlock_t *lock_addr(const atomic64_t *v) { unsigned long addr = (unsigned long) v; @@ -45,12 +45,14 @@ static inline raw_spinlock_t *lock_addr(const atomic64_t *v) s64 generic_atomic64_read(const atomic64_t *v) { unsigned long flags; - raw_spinlock_t *lock = lock_addr(v); + arch_spinlock_t *lock = lock_addr(v); s64 val; - raw_spin_lock_irqsave(lock, flags); + local_irq_save(flags); + arch_spin_lock(lock); val = v->counter; - raw_spin_unlock_irqrestore(lock, flags); + arch_spin_unlock(lock); + local_irq_restore(flags); return val; } EXPORT_SYMBOL(generic_atomic64_read); @@ -58,11 +60,13 @@ EXPORT_SYMBOL(generic_atomic64_read); void generic_atomic64_set(atomic64_t *v, s64 i) { unsigned long flags; - raw_spinlock_t *lock = lock_addr(v); + arch_spinlock_t *lock = lock_addr(v); - raw_spin_lock_irqsave(lock, flags); + local_irq_save(flags); + arch_spin_lock(lock); v->counter = i; - raw_spin_unlock_irqrestore(lock, flags); + arch_spin_unlock(lock); + local_irq_restore(flags); } EXPORT_SYMBOL(generic_atomic64_set); @@ -70,11 +74,13 @@ EXPORT_SYMBOL(generic_atomic64_set); void generic_atomic64_##op(s64 a, atomic64_t *v) \ { \ unsigned long flags; \ - raw_spinlock_t *lock = lock_addr(v); \ + arch_spinlock_t *lock = lock_addr(v); \ \ - raw_spin_lock_irqsave(lock, flags); \ + local_irq_save(flags); \ + arch_spin_lock(lock); \ v->counter c_op a; \ - raw_spin_unlock_irqrestore(lock, flags); \ + arch_spin_unlock(lock); \ + local_irq_restore(flags); \ } \ EXPORT_SYMBOL(generic_atomic64_##op); @@ -82,12 +88,14 @@ EXPORT_SYMBOL(generic_atomic64_##op); s64 generic_atomic64_##op##_return(s64 a, atomic64_t *v) \ { \ unsigned long flags; \ - raw_spinlock_t *lock = lock_addr(v); \ + arch_spinlock_t *lock = lock_addr(v); \ s64 val; \ \ - raw_spin_lock_irqsave(lock, flags); \ + local_irq_save(flags); \ + arch_spin_lock(lock); \ val = (v->counter c_op a); \ - raw_spin_unlock_irqrestore(lock, flags); \ + arch_spin_unlock(lock); \ + local_irq_restore(flags); \ return val; \ } \ EXPORT_SYMBOL(generic_atomic64_##op##_return); @@ -96,13 +104,15 @@ EXPORT_SYMBOL(generic_atomic64_##op##_return); s64 generic_atomic64_fetch_##op(s64 a, atomic64_t *v) \ { \ unsigned long flags; \ - raw_spinlock_t *lock = lock_addr(v); \ + arch_spinlock_t *lock = lock_addr(v); \ s64 val; \ \ - raw_spin_lock_irqsave(lock, flags); \ + local_irq_save(flags); \ + arch_spin_lock(lock); \ val = v->counter; \ v->counter c_op a; \ - raw_spin_unlock_irqrestore(lock, flags); \ + arch_spin_unlock(lock); \ + local_irq_restore(flags); \ return val; \ } \ EXPORT_SYMBOL(generic_atomic64_fetch_##op); @@ -131,14 +141,16 @@ ATOMIC64_OPS(xor, ^=) s64 generic_atomic64_dec_if_positive(atomic64_t *v) { unsigned long flags; - raw_spinlock_t *lock = lock_addr(v); + arch_spinlock_t *lock = lock_addr(v); s64 val; - raw_spin_lock_irqsave(lock, flags); + local_irq_save(flags); + arch_spin_lock(lock); val = v->counter - 1; if (val >= 0) v->counter = val; - raw_spin_unlock_irqrestore(lock, flags); + arch_spin_unlock(lock); + local_irq_restore(flags); return val; } EXPORT_SYMBOL(generic_atomic64_dec_if_positive); @@ -146,14 +158,16 @@ EXPORT_SYMBOL(generic_atomic64_dec_if_positive); s64 generic_atomic64_cmpxchg(atomic64_t *v, s64 o, s64 n) { unsigned long flags; - raw_spinlock_t *lock = lock_addr(v); + arch_spinlock_t *lock = lock_addr(v); s64 val; - raw_spin_lock_irqsave(lock, flags); + local_irq_save(flags); + arch_spin_lock(lock); val = v->counter; if (val == o) v->counter = n; - raw_spin_unlock_irqrestore(lock, flags); + arch_spin_unlock(lock); + local_irq_restore(flags); return val; } EXPORT_SYMBOL(generic_atomic64_cmpxchg); @@ -161,13 +175,15 @@ EXPORT_SYMBOL(generic_atomic64_cmpxchg); s64 generic_atomic64_xchg(atomic64_t *v, s64 new) { unsigned long flags; - raw_spinlock_t *lock = lock_addr(v); + arch_spinlock_t *lock = lock_addr(v); s64 val; - raw_spin_lock_irqsave(lock, flags); + local_irq_save(flags); + arch_spin_lock(lock); val = v->counter; v->counter = new; - raw_spin_unlock_irqrestore(lock, flags); + arch_spin_unlock(lock); + local_irq_restore(flags); return val; } EXPORT_SYMBOL(generic_atomic64_xchg); @@ -175,14 +191,16 @@ EXPORT_SYMBOL(generic_atomic64_xchg); s64 generic_atomic64_fetch_add_unless(atomic64_t *v, s64 a, s64 u) { unsigned long flags; - raw_spinlock_t *lock = lock_addr(v); + arch_spinlock_t *lock = lock_addr(v); s64 val; - raw_spin_lock_irqsave(lock, flags); + local_irq_save(flags); + arch_spin_lock(lock); val = v->counter; if (val != u) v->counter += a; - raw_spin_unlock_irqrestore(lock, flags); + arch_spin_unlock(lock); + local_irq_restore(flags); return val; } -- 2.45.2

5 months, 2 weeks

2
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[PATCH 1/2] ring-buffer: Do not allow events in NMI with generic atomic64 cmpxchg()

by Steven Rostedt

From: Steven Rostedt <rostedt(a)goodmis.org> Some architectures can not safely do atomic64 operations in NMI context. Since the ring buffer relies on atomic64 operations to do its time keeping, if an event is requested in NMI context, reject it for these architectures. Cc: stable(a)vger.kernel.org Fixes: c84897c0ff592 ("ring-buffer: Remove 32bit timestamp logic") Closes: https://lore.kernel.org/all/86fb4f86-a0e4-45a2-a2df-3154acc4f086@gaisler.co… Reported-by: Ludwig Rydberg <ludwig.rydberg(a)gaisler.com> Signed-off-by: Steven Rostedt (Google) <rostedt(a)goodmis.org> --- kernel/trace/ring_buffer.c | 9 +++++++-- 1 file changed, 7 insertions(+), 2 deletions(-) diff --git a/kernel/trace/ring_buffer.c b/kernel/trace/ring_buffer.c index 6d61ff78926b..b8e0ae15ca5b 100644 --- a/kernel/trace/ring_buffer.c +++ b/kernel/trace/ring_buffer.c @@ -4398,8 +4398,13 @@ rb_reserve_next_event(struct trace_buffer *buffer, int nr_loops = 0; int add_ts_default; - /* ring buffer does cmpxchg, make sure it is safe in NMI context */ - if (!IS_ENABLED(CONFIG_ARCH_HAVE_NMI_SAFE_CMPXCHG) && + /* + * ring buffer does cmpxchg as well as atomic64 operations + * (which some archs use locking for atomic64), make sure this + * is safe in NMI context + */ + if ((!IS_ENABLED(CONFIG_ARCH_HAVE_NMI_SAFE_CMPXCHG) || + IS_ENABLED(CONFIG_GENERIC_ATOMIC64)) && (unlikely(in_nmi()))) { return NULL; } -- 2.45.2

5 months, 2 weeks

2
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