December 2024 - Linux-stable-mirror

by Greg Kroah-Hartman

This is the start of the stable review cycle for the 6.12.4 release. There are 146 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 Sun, 08 Dec 2024 14:34:52 +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-6.12.4-rc1… or in the git tree and branch at: git://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable-rc.git linux-6.12.y and the diffstat can be found below. thanks, greg k-h ------------- Pseudo-Shortlog of commits: Greg Kroah-Hartman <gregkh(a)linuxfoundation.org> Linux 6.12.4-rc1 Frederic Weisbecker <frederic(a)kernel.org> posix-timers: Target group sigqueue to current task only if not exiting Ovidiu Bunea <Ovidiu.Bunea(a)amd.com> drm/amd/display: Remove PIPE_DTO_SRC_SEL programming from set_dtbclk_dto Yihan Zhu <Yihan.Zhu(a)amd.com> drm/amd/display: update pipe selection policy to check head pipe Joshua Aberback <joshua.aberback(a)amd.com> drm/amd/display: Fix handling of plane refcount Lijo Lazar <lijo.lazar(a)amd.com> drm/amd/pm: Remove arcturus min power limit Kenneth Feng <kenneth.feng(a)amd.com> drm/amd/pm: disable pcie speed switching on Intel platform for smu v14.0.2/3 Umio Yasuno <coelacanth_dream(a)protonmail.com> drm/amd/pm: update current_socclk and current_uclk in gpu_metrics on smu v13.0.7 Mario Limonciello <mario.limonciello(a)amd.com> drm/amd: Fix initialization mistake for NBIO 7.11 devices Kenneth Feng <kenneth.feng(a)amd.com> drm/amd/pm: skip setting the power source on smu v14.0.2/3 Vitaly Prosyak <vitaly.prosyak(a)amd.com> drm/amdgpu: fix usage slab after free Mario Limonciello <mario.limonciello(a)amd.com> drm/amd: Add some missing straps from NBIO 7.11.0 Kenneth Feng <kenneth.feng(a)amd.com> drm/amdgpu/pm: add gen5 display to the user on smu v14.0.2/3 Lijo Lazar <lijo.lazar(a)amd.com> drm/amdkfd: Use the correct wptr size Matthew Auld <matthew.auld(a)intel.com> drm/xe/guc_submit: fix race around suspend_pending Matthew Auld <matthew.auld(a)intel.com> drm/xe/migrate: use XE_BO_FLAG_PAGETABLE Alex Deucher <alexander.deucher(a)amd.com> Revert "drm/radeon: Delay Connector detecting when HPD singals is unstable" Matthew Auld <matthew.auld(a)intel.com> drm/xe/migrate: fix pat index usage Jonathan Cavitt <jonathan.cavitt(a)intel.com> drm/xe/xe_guc_ads: save/restore OA registers and allowlist regs Steffen Dirkwinkel <s.dirkwinkel(a)beckhoff.com> drm: xlnx: zynqmp_dpsub: fix hotplug detection Lucas Stach <l.stach(a)pengutronix.de> drm/etnaviv: flush shader L1 cache after user commandstream Chen-Yu Tsai <wenst(a)chromium.org> drm/bridge: it6505: Fix inverted reset polarity Javier Carrasco <javier.carrasco.cruz(a)gmail.com> drm/mediatek: Fix child node refcount handling in early exit Thomas Zimmermann <tzimmermann(a)suse.de> drm/fbdev-dma: Select FB_DEFERRED_IO Ma Ke <make24(a)iscas.ac.cn> drm/sti: avoid potential dereference of error pointers Hugo Villeneuve <hvilleneuve(a)dimonoff.com> drm: panel: jd9365da-h3: Remove unused num_init_cmds structure member Ma Ke <make24(a)iscas.ac.cn> drm/sti: avoid potential dereference of error pointers in sti_gdp_atomic_check Ma Ke <make24(a)iscas.ac.cn> drm/sti: avoid potential dereference of error pointers in sti_hqvdp_atomic_check Lyude Paul <lyude(a)redhat.com> drm/panic: Fix uninitialized spinlock acquisition with CONFIG_DRM_PANIC=n Francesco Dolcini <francesco.dolcini(a)toradex.com> net: fec: make PPS channel configurable Francesco Dolcini <francesco.dolcini(a)toradex.com> net: fec: refactor PPS channel configuration Francesco Dolcini <francesco.dolcini(a)toradex.com> dt-bindings: net: fec: add pps channel property Carlos Llamas <cmllamas(a)google.com> binder: add delivered_freeze to debugfs output Carlos Llamas <cmllamas(a)google.com> binder: fix memleak of proc->delivered_freeze Carlos Llamas <cmllamas(a)google.com> binder: allow freeze notification for dead nodes Carlos Llamas <cmllamas(a)google.com> binder: fix BINDER_WORK_CLEAR_FREEZE_NOTIFICATION debug logs Carlos Llamas <cmllamas(a)google.com> binder: fix BINDER_WORK_FROZEN_BINDER debug logs Carlos Llamas <cmllamas(a)google.com> binder: fix freeze UAF in binder_release_work() Carlos Llamas <cmllamas(a)google.com> binder: fix OOB in binder_add_freeze_work() Carlos Llamas <cmllamas(a)google.com> binder: fix node UAF in binder_add_freeze_work() Nathan Chancellor <nathan(a)kernel.org> powerpc: Adjust adding stack protector flags to KBUILD_CLAGS for clang Nathan Chancellor <nathan(a)kernel.org> powerpc: Fix stack protector Kconfig test for clang Zicheng Qu <quzicheng(a)huawei.com> iio: gts: fix infinite loop for gain_to_scaletables() Nuno Sa <nuno.sa(a)analog.com> iio: adc: ad7923: Fix buffer overflow for tx_buf and ring_xfer Zicheng Qu <quzicheng(a)huawei.com> iio: Fix fwnode_handle in __fwnode_iio_channel_get_by_name() Jean-Baptiste Maneyrol <jean-baptiste.maneyrol(a)tdk.com> iio: invensense: fix multiple odr switch when FIFO is off Matti Vaittinen <mazziesaccount(a)gmail.com> iio: accel: kx022a: Fix raw read format Yang Erkun <yangerkun(a)huawei.com> nfsd: fix nfs4_openowner leak when concurrent nfsd4_open occur Yang Erkun <yangerkun(a)huawei.com> nfsd: make sure exp active before svc_export_show Damien Le Moal <dlemoal(a)kernel.org> PCI: rockchip-ep: Fix address translation unit programming Andrea della Porta <andrea.porta(a)suse.com> PCI: of_property: Assign PCI instead of CPU bus address to dynamic PCI nodes Niklas Cassel <cassel(a)kernel.org> PCI: dwc: ep: Fix advertised resizable BAR size regression Yuan Can <yuancan(a)huawei.com> dm thin: Add missing destroy_work_on_stack() Ssuhung Yeh <ssuhung(a)gmail.com> dm: Fix typo in error message Adrian Huang <ahuang12(a)lenovo.com> mm/vmalloc: combine all TLB flush operations of KASAN shadow virtual address into one operation Oleksandr Tymoshenko <ovt(a)google.com> ovl: properly handle large files in ovl_security_fileattr Javier Carrasco <javier.carrasco.cruz(a)gmail.com> leds: flash: mt6360: Fix device_for_each_child_node() refcounting in error paths Srinivas Pandruvada <srinivas.pandruvada(a)linux.intel.com> thermal: int3400: Fix reading of current_uuid for active policy Jiri Olsa <jolsa(a)kernel.org> fs/proc/kcore.c: Clear ret value in read_kcore_iter after successful iov_iter_zero Geert Uytterhoeven <geert(a)linux-m68k.org> slab: Fix too strict alignment check in create_cache() Zijun Hu <quic_zijuhu(a)quicinc.com> PCI: endpoint: Clear secondary (not primary) EPC in pci_epc_remove_epf() Zijun Hu <quic_zijuhu(a)quicinc.com> PCI: endpoint: Fix PCI domain ID release in pci_epc_destroy() Kishon Vijay Abraham I <kishon(a)kernel.org> PCI: keystone: Add link up check to ks_pcie_other_map_bus() Kishon Vijay Abraham I <kishon(a)kernel.org> PCI: keystone: Set mode as Root Complex for "ti,keystone-pcie" compatible Frank Li <Frank.Li(a)nxp.com> i3c: master: svc: Modify enabled_events bit 7:0 to act as IBI enable counter Frank Li <Frank.Li(a)nxp.com> i3c: master: svc: fix possible assignment of the same address to two devices Frank Li <Frank.Li(a)nxp.com> i3c: master: Fix miss free init_dyn_addr at i3c_master_put_i3c_addrs() Jinjie Ruan <ruanjinjie(a)huawei.com> i3c: master: svc: Fix pm_runtime_set_suspended() with runtime pm enabled Peter Griffin <peter.griffin(a)linaro.org> scsi: ufs: exynos: Fix hibern8 notify callbacks Peter Griffin <peter.griffin(a)linaro.org> scsi: ufs: exynos: Add check inside exynos_ufs_config_smu() Heiko Carstens <hca(a)linux.ibm.com> s390/stacktrace: Use break instead of return statement Alexandru Ardelean <aardelean(a)baylibre.com> util_macros.h: fix/rework find_closest() macros Miquel Raynal <miquel.raynal(a)bootlin.com> mtd: spinand: winbond: Fix 512GW, 01GW, 01JW and 02JW ECC information Miquel Raynal <miquel.raynal(a)bootlin.com> mtd: spinand: winbond: Fix 512GW and 02JW OOB layout Max Kellermann <max.kellermann(a)ionos.com> ceph: fix cred leak in ceph_mds_check_access() Max Kellermann <max.kellermann(a)ionos.com> ceph: pass cred pointer to ceph_mds_auth_match() Patrick Donnelly <pdonnell(a)redhat.com> ceph: extract entity name from device id Chao Yu <chao(a)kernel.org> f2fs: fix to drop all discards after creating snapshot on lvm device yuan.gao <yuan.gao(a)ucloud.cn> mm/slub: Avoid list corruption when removing a slab from the full list Stefan Eichenberger <stefan.eichenberger(a)toradex.com> PCI: imx6: Fix suspend/resume support on i.MX6QDL Balaji Pothunoori <quic_bpothuno(a)quicinc.com> remoteproc: qcom_q6v5_pas: disable auto boot for wpss Xu Yang <xu.yang_2(a)nxp.com> perf jevents: fix breakage when do perf stat on system metric Qiang Yu <quic_qianyu(a)quicinc.com> PCI: qcom: Disable ASPM L0s for X1E80100 Giovanni Cabiddu <giovanni.cabiddu(a)intel.com> vfio/qat: fix overflow check in qat_vf_resume_write() Choong Yong Liang <yong.liang.choong(a)linux.intel.com> net: stmmac: set initial EEE policy configuration Linus Walleij <linus.walleij(a)linaro.org> ARM: 9431/1: mm: Pair atomic_set_release() with _read_acquire() Linus Walleij <linus.walleij(a)linaro.org> ARM: 9430/1: entry: Do a dummy read from VMAP shadow Vasily Gorbik <gor(a)linux.ibm.com> s390/entry: Mark IRQ entries to fix stack depot warnings Linus Walleij <linus.walleij(a)linaro.org> ARM: 9429/1: ioremap: Sync PGDs for VMALLOC shadow Javier Carrasco <javier.carrasco.cruz(a)gmail.com> spmi: pmic-arb: fix return path in for_each_available_child_of_node() Saravana Kannan <saravanak(a)google.com> driver core: fw_devlink: Stop trying to optimize cycle detection logic Marek Vasut <marex(a)denx.de> nvmem: core: Check read_only flag for force_ro in bin_attr_nvmem_write() Zicheng Qu <quzicheng(a)huawei.com> ad7780: fix division by zero in ad7780_write_raw() Gabor Juhos <j4g8y7(a)gmail.com> clk: qcom: gcc-qcs404: fix initial rate of GPLL3 Sibi Sankar <quic_sibis(a)quicinc.com> cpufreq: scmi: Fix cleanup path when boost enablement fails Nathan Chancellor <nathan(a)kernel.org> powerpc/vdso: Drop -mstack-protector-guard flags in 32-bit files with clang Zheng Yejian <zhengyejian(a)huaweicloud.com> mm/damon/vaddr: fix issue in damon_va_evenly_split_region() Michal Vokáč <michal.vokac(a)ysoft.com> leds: lp55xx: Remove redundant test for invalid channel number Pratyush Brahma <quic_pbrahma(a)quicinc.com> iommu/arm-smmu: Defer probe of clients after smmu device bound Mostafa Saleh <smostafa(a)google.com> iommu/io-pgtable-arm: Fix stage-2 map/unmap for concatenated tables Sergey Senozhatsky <senozhatsky(a)chromium.org> zram: clear IDLE flag after recompression MengEn Sun <mengensun(a)tencent.com> vmstat: call fold_vm_zone_numa_events() before show per zone NUMA event guoweikang <guoweikang.kernel(a)gmail.com> ftrace: Fix regression with module command in stack_trace_filter Wei Yang <richard.weiyang(a)gmail.com> maple_tree: refine mas_store_root() on storing NULL Vasiliy Kovalev <kovalev(a)altlinux.org> ovl: Filter invalid inodes with missing lookup function Jinjie Ruan <ruanjinjie(a)huawei.com> kunit: string-stream: Fix a UAF bug in kunit_init_suite() Zichen Xie <zichenxie0106(a)gmail.com> kunit: Fix potential null dereference in kunit_device_driver_test() Masami Hiramatsu (Google) <mhiramat(a)kernel.org> tracing: Fix function timing profiler to initialize hashtable Thadeu Lima de Souza Cascardo <cascardo(a)igalia.com> media: uvcvideo: Require entities to have a non-zero unique ID Ricardo Ribalda <ribalda(a)chromium.org> media: uvcvideo: Stop stream during unregister Gaosheng Cui <cuigaosheng1(a)huawei.com> media: platform: allegro-dvt: Fix possible memory leak in allocate_buffers_internal() Bryan O'Donoghue <bryan.odonoghue(a)linaro.org> media: ov08x40: Fix burst write sequence Jinjie Ruan <ruanjinjie(a)huawei.com> media: gspca: ov534-ov772x: Fix off-by-one error in set_frame_rate() Jinjie Ruan <ruanjinjie(a)huawei.com> media: venus: Fix pm_runtime_set_suspended() with runtime pm enabled Jinjie Ruan <ruanjinjie(a)huawei.com> media: amphion: Fix pm_runtime_set_suspended() with runtime pm enabled Romain Gantois <romain.gantois(a)bootlin.com> net: phy: dp83869: fix status reporting for 1000base-x autonegotiation Ard Biesheuvel <ardb(a)kernel.org> efi/libstub: Free correct pointer on failure Joe Hattori <joe(a)pf.is.s.u-tokyo.ac.jp> media: platform: exynos4-is: Fix an OF node reference leak in fimc_md_is_isp_available Li Zetao <lizetao1(a)huawei.com> media: ts2020: fix null-ptr-deref in ts2020_probe() Benjamin Gaignard <benjamin.gaignard(a)collabora.com> media: verisilicon: av1: Fix reference video buffer pointer assignment John Keeping <jkeeping(a)inmusicbrands.com> media: platform: rga: fix 32-bit DMA limitation Ming Qian <ming.qian(a)nxp.com> media: imx-jpeg: Ensure power suppliers be suspended before detach them Alexander Shiyan <eagle.alexander923(a)gmail.com> media: i2c: tc358743: Fix crash in the probe error path when using polling Francesco Dolcini <francesco.dolcini(a)toradex.com> arm64: dts: freescale: imx8mp-verdin: Fix SD regulator startup delay Jinjie Ruan <ruanjinjie(a)huawei.com> media: i2c: dw9768: Fix pm_runtime_set_suspended() with runtime pm enabled Guoqing Jiang <guoqing.jiang(a)canonical.com> media: mtk-jpeg: Fix null-ptr-deref during unload module Ming Qian <ming.qian(a)nxp.com> media: imx-jpeg: Set video drvdata before register video device Ming Qian <ming.qian(a)nxp.com> media: amphion: Set video drvdata before register video device Vladimir Zapolskiy <vladimir.zapolskiy(a)linaro.org> media: qcom: camss: fix error path on configuration of power domains Chen-Yu Tsai <wenst(a)chromium.org> arm64: dts: mediatek: mt8186-corsola: Fix IT6505 reset line polarity Francesco Dolcini <francesco.dolcini(a)toradex.com> arm64: dts: ti: k3-am62-verdin: Fix SD regulator startup delay Francesco Dolcini <francesco.dolcini(a)toradex.com> arm64: dts: freescale: imx8mm-verdin: Fix SD regulator startup delay Chen-Yu Tsai <wenst(a)chromium.org> arm64: dts: mediatek: mt8186-corsola: Fix GPU supply coupling max-spread Dragan Simic <dsimic(a)manjaro.org> arm64: dts: allwinner: pinephone: Add mount matrix to accelerometer Yuan Can <yuancan(a)huawei.com> md/md-bitmap: Add missing destroy_work_on_stack() Xiao Ni <xni(a)redhat.com> md/raid5: Wait sync io to finish before changing group cnt Daniel Borkmann <daniel(a)iogearbox.net> netkit: Add option for scrubbing skb meta data Will Deacon <will(a)kernel.org> iommu/tegra241-cmdqv: Fix unused variable warning Filipe Manana <fdmanana(a)suse.com> btrfs: ref-verify: fix use-after-free after invalid ref action Lizhi Xu <lizhi.xu(a)windriver.com> btrfs: add a sanity check for btrfs root in btrfs_search_slot() Filipe Manana <fdmanana(a)suse.com> btrfs: don't loop for nowait writes when checking for cross references Johannes Thumshirn <johannes.thumshirn(a)wdc.com> btrfs: fix use-after-free in btrfs_encoded_read_endio() Mark Harmstone <maharmstone(a)fb.com> btrfs: move priv off stack in btrfs_encoded_read_regular_fill_pages() Mark Harmstone <maharmstone(a)fb.com> btrfs: change btrfs_encoded_read() so that reading of extent is done by caller David Sterba <dsterba(a)suse.com> btrfs: drop unused parameter file_offset from btrfs_encoded_read_regular_fill_pages() Ojaswin Mujoo <ojaswin(a)linux.ibm.com> quota: flush quota_release_work upon quota writeback Long Li <leo.lilong(a)huawei.com> xfs: remove unknown compat feature check in superblock write validation ------------- Diffstat: Documentation/devicetree/bindings/net/fsl,fec.yaml | 7 ++ Makefile | 4 +- arch/arm/kernel/entry-armv.S | 8 ++ arch/arm/mm/ioremap.c | 35 ++++++- .../boot/dts/allwinner/sun50i-a64-pinephone.dtsi | 3 + arch/arm64/boot/dts/freescale/imx8mm-verdin.dtsi | 2 +- arch/arm64/boot/dts/freescale/imx8mp-verdin.dtsi | 2 +- arch/arm64/boot/dts/mediatek/mt8186-corsola.dtsi | 6 +- arch/arm64/boot/dts/ti/k3-am62-verdin.dtsi | 2 +- arch/powerpc/Kconfig | 4 +- arch/powerpc/Makefile | 13 +-- arch/powerpc/kernel/vdso/Makefile | 8 +- arch/s390/kernel/entry.S | 4 + arch/s390/kernel/kprobes.c | 6 ++ arch/s390/kernel/stacktrace.c | 2 +- drivers/android/binder.c | 64 ++++++++++--- drivers/base/core.c | 55 +++++------ drivers/block/zram/zram_drv.c | 7 ++ drivers/clk/qcom/gcc-qcs404.c | 1 + drivers/cpufreq/scmi-cpufreq.c | 4 +- drivers/firmware/efi/libstub/efi-stub.c | 2 +- drivers/gpu/drm/Kconfig | 2 +- drivers/gpu/drm/amd/amdgpu/amdgpu_device.c | 2 +- drivers/gpu/drm/amd/amdgpu/amdgpu_vce.c | 6 +- drivers/gpu/drm/amd/amdgpu/nbio_v7_11.c | 9 ++ drivers/gpu/drm/amd/amdkfd/kfd_kernel_queue.c | 2 +- drivers/gpu/drm/amd/display/dc/core/dc.c | 3 + .../gpu/drm/amd/display/dc/dccg/dcn35/dcn35_dccg.c | 15 +-- .../amd/display/dc/dml2/dml2_dc_resource_mgmt.c | 23 ++++- .../amd/include/asic_reg/nbio/nbio_7_11_0_offset.h | 2 + .../include/asic_reg/nbio/nbio_7_11_0_sh_mask.h | 13 +++ drivers/gpu/drm/amd/pm/swsmu/amdgpu_smu.c | 8 +- drivers/gpu/drm/amd/pm/swsmu/inc/smu_v14_0.h | 2 +- drivers/gpu/drm/amd/pm/swsmu/smu11/arcturus_ppt.c | 6 +- .../gpu/drm/amd/pm/swsmu/smu13/smu_v13_0_7_ppt.c | 2 + drivers/gpu/drm/amd/pm/swsmu/smu14/smu_v14_0.c | 2 +- .../gpu/drm/amd/pm/swsmu/smu14/smu_v14_0_2_ppt.c | 37 ++++++-- drivers/gpu/drm/bridge/ite-it6505.c | 8 +- drivers/gpu/drm/drm_atomic_helper.c | 2 +- drivers/gpu/drm/etnaviv/etnaviv_buffer.c | 3 +- drivers/gpu/drm/mediatek/mtk_drm_drv.c | 4 +- drivers/gpu/drm/panel/panel-jadard-jd9365da-h3.c | 1 - drivers/gpu/drm/radeon/radeon_connectors.c | 10 -- drivers/gpu/drm/sti/sti_cursor.c | 3 + drivers/gpu/drm/sti/sti_gdp.c | 3 + drivers/gpu/drm/sti/sti_hqvdp.c | 3 + drivers/gpu/drm/xe/xe_guc_ads.c | 14 +++ drivers/gpu/drm/xe/xe_guc_submit.c | 17 +++- drivers/gpu/drm/xe/xe_migrate.c | 6 +- drivers/gpu/drm/xlnx/zynqmp_kms.c | 4 +- drivers/i3c/master.c | 2 +- drivers/i3c/master/svc-i3c-master.c | 39 +++++--- drivers/iio/accel/kionix-kx022a.c | 2 +- drivers/iio/adc/ad7780.c | 2 +- drivers/iio/adc/ad7923.c | 4 +- .../iio/common/inv_sensors/inv_sensors_timestamp.c | 4 + drivers/iio/imu/inv_icm42600/inv_icm42600_accel.c | 2 - drivers/iio/imu/inv_icm42600/inv_icm42600_gyro.c | 3 - drivers/iio/imu/inv_mpu6050/inv_mpu_trigger.c | 1 - drivers/iio/industrialio-gts-helper.c | 2 +- drivers/iio/inkern.c | 2 +- drivers/iommu/arm/arm-smmu-v3/tegra241-cmdqv.c | 2 + drivers/iommu/arm/arm-smmu/arm-smmu.c | 11 +++ drivers/iommu/io-pgtable-arm.c | 18 +++- drivers/leds/flash/leds-mt6360.c | 3 +- drivers/leds/leds-lp55xx-common.c | 3 - drivers/md/dm-thin.c | 1 + drivers/md/md-bitmap.c | 1 + drivers/md/persistent-data/dm-space-map-common.c | 2 +- drivers/md/raid5.c | 4 + drivers/media/dvb-frontends/ts2020.c | 8 +- drivers/media/i2c/dw9768.c | 10 +- drivers/media/i2c/ov08x40.c | 33 ++++++- drivers/media/i2c/tc358743.c | 4 +- drivers/media/platform/allegro-dvt/allegro-core.c | 4 +- drivers/media/platform/amphion/vpu_drv.c | 2 +- drivers/media/platform/amphion/vpu_v4l2.c | 2 +- .../media/platform/mediatek/jpeg/mtk_jpeg_core.c | 10 ++ .../media/platform/mediatek/jpeg/mtk_jpeg_dec_hw.c | 11 --- drivers/media/platform/nxp/imx-jpeg/mxc-jpeg.c | 4 +- drivers/media/platform/qcom/camss/camss.c | 19 ++-- drivers/media/platform/qcom/venus/core.c | 2 +- drivers/media/platform/rockchip/rga/rga.c | 2 +- .../media/platform/samsung/exynos4-is/media-dev.h | 5 +- .../verisilicon/rockchip_vpu981_hw_av1_dec.c | 3 +- drivers/media/usb/gspca/ov534.c | 2 +- drivers/media/usb/uvc/uvc_driver.c | 102 +++++++++++++++------ drivers/mtd/nand/spi/winbond.c | 16 ++-- drivers/net/ethernet/freescale/fec_ptp.c | 11 ++- drivers/net/ethernet/stmicro/stmmac/stmmac_main.c | 3 + drivers/net/netkit.c | 68 +++++++++++--- drivers/net/phy/dp83869.c | 20 +++- drivers/nvmem/core.c | 2 +- drivers/pci/controller/dwc/pci-imx6.c | 57 +++++++++--- drivers/pci/controller/dwc/pci-keystone.c | 12 +++ drivers/pci/controller/dwc/pcie-designware-ep.c | 2 +- drivers/pci/controller/dwc/pcie-qcom.c | 2 +- drivers/pci/controller/pcie-rockchip-ep.c | 16 +++- drivers/pci/controller/pcie-rockchip.h | 4 + drivers/pci/endpoint/pci-epc-core.c | 11 +-- drivers/pci/of_property.c | 2 +- drivers/remoteproc/qcom_q6v5_pas.c | 2 +- drivers/spmi/spmi-pmic-arb.c | 3 +- .../intel/int340x_thermal/int3400_thermal.c | 2 +- drivers/ufs/host/ufs-exynos.c | 23 +++-- drivers/vfio/pci/qat/main.c | 2 +- fs/btrfs/btrfs_inode.h | 12 ++- fs/btrfs/ctree.c | 6 +- fs/btrfs/extent-tree.c | 2 +- fs/btrfs/inode.c | 94 ++++++++++--------- fs/btrfs/ioctl.c | 32 ++++++- fs/btrfs/ref-verify.c | 1 + fs/btrfs/send.c | 2 +- fs/ceph/mds_client.c | 7 +- fs/ceph/super.c | 10 +- fs/f2fs/segment.c | 16 ++-- fs/f2fs/super.c | 12 +++ fs/nfsd/export.c | 5 +- fs/nfsd/nfs4state.c | 19 ++++ fs/overlayfs/inode.c | 7 +- fs/overlayfs/util.c | 3 + fs/proc/kcore.c | 1 + fs/quota/dquot.c | 2 + fs/xfs/libxfs/xfs_sb.c | 7 -- include/drm/drm_panic.h | 14 +++ include/linux/kasan.h | 12 ++- include/linux/util_macros.h | 56 +++++++---- include/uapi/linux/if_link.h | 15 +++ kernel/signal.c | 9 +- kernel/trace/ftrace.c | 7 ++ lib/kunit/debugfs.c | 5 +- lib/kunit/kunit-test.c | 2 + lib/maple_tree.c | 13 ++- mm/damon/tests/vaddr-kunit.h | 1 + mm/damon/vaddr.c | 4 +- mm/kasan/shadow.c | 14 ++- mm/slab.h | 5 + mm/slab_common.c | 2 +- mm/slub.c | 9 +- mm/vmalloc.c | 34 +++++-- mm/vmstat.c | 1 + tools/perf/pmu-events/empty-pmu-events.c | 12 +-- tools/perf/pmu-events/jevents.py | 12 +-- 143 files changed, 1071 insertions(+), 434 deletions(-)

9 months

10
156
0 0

[stable-kernel-only][5.15.y][5.10.y][PATCH] serial: sc16is7xx: the reg needs to shift in regmap_noinc

by Hui Wang

Recently we found the fifo_read() and fifo_write() are broken in our 5.15 and 5.4 kernels after cherry-pick the commit e635f652696e ("serial: sc16is7xx: convert from _raw_ to _noinc_ regmap functions for FIFO"), that is because the reg needs to shift if we don't cherry-pick a prerequiste commit 3837a0379533 ("serial: sc16is7xx: improve regmap debugfs by using one regmap per port"). Here fix it by shifting the reg as regmap_volatile() does. Signed-off-by: Hui Wang <hui.wang(a)canonical.com> --- drivers/tty/serial/sc16is7xx.c | 9 ++++++++- 1 file changed, 8 insertions(+), 1 deletion(-) diff --git a/drivers/tty/serial/sc16is7xx.c b/drivers/tty/serial/sc16is7xx.c index d274a847c6ab..87e34099f369 100644 --- a/drivers/tty/serial/sc16is7xx.c +++ b/drivers/tty/serial/sc16is7xx.c @@ -487,7 +487,14 @@ static bool sc16is7xx_regmap_precious(struct device *dev, unsigned int reg) static bool sc16is7xx_regmap_noinc(struct device *dev, unsigned int reg) { - return reg == SC16IS7XX_RHR_REG; + switch (reg >> SC16IS7XX_REG_SHIFT) { + case SC16IS7XX_RHR_REG: + return true; + default: + break; + } + + return false; } /* -- 2.34.1

9 months

4
4
0 0

[PATCH v3] x86/hyper-v: Fix hv tsc page based sched_clock for hibernation

by Naman Jain

read_hv_sched_clock_tsc() assumes that the Hyper-V clock counter is bigger than the variable hv_sched_clock_offset, which is cached during early boot, but depending on the timing this assumption may be false when a hibernated VM starts again (the clock counter starts from 0 again) and is resuming back (Note: hv_init_tsc_clocksource() is not called during hibernation/resume); consequently, read_hv_sched_clock_tsc() may return a negative integer (which is interpreted as a huge positive integer since the return type is u64) and new kernel messages are prefixed with huge timestamps before read_hv_sched_clock_tsc() grows big enough (which typically takes several seconds). Fix the issue by saving the Hyper-V clock counter just before the suspend, and using it to correct the hv_sched_clock_offset in resume. This makes hv tsc page based sched_clock continuous and ensures that post resume, it starts from where it left off during suspend. Override x86_platform.save_sched_clock_state and x86_platform.restore_sched_clock_state routines to correct this as soon as possible. Note: if Invariant TSC is available, the issue doesn't happen because 1) we don't register read_hv_sched_clock_tsc() for sched clock: See commit e5313f1c5404 ("clocksource/drivers/hyper-v: Rework clocksource and sched clock setup"); 2) the common x86 code adjusts TSC similarly: see __restore_processor_state() -> tsc_verify_tsc_adjust(true) and x86_platform.restore_sched_clock_state(). Cc: stable(a)vger.kernel.org Fixes: 1349401ff1aa ("clocksource/drivers/hyper-v: Suspend/resume Hyper-V clocksource for hibernation") Co-developed-by: Dexuan Cui <decui(a)microsoft.com> Signed-off-by: Dexuan Cui <decui(a)microsoft.com> Signed-off-by: Naman Jain <namjain(a)linux.microsoft.com> --- Changes from v2: https://lore.kernel.org/all/20240911045632.3757-1-namjain@linux.microsoft.c… Addressed Michael's comments: * Changed commit msg to include information on making timestamps continuous * Changed subject to reflect the new file being changed * Changed variable name for saving offset/counters * Moved comment on new function introduced from header file to function definition. * Removed the equations in comments * Rebased to latest linux-next tip Changes from v1: https://lore.kernel.org/all/20240909053923.8512-1-namjain@linux.microsoft.c… * Reorganized code as per Michael's comment, and moved the logic to x86 specific files, to keep hyperv_timer.c arch independent. --- arch/x86/kernel/cpu/mshyperv.c | 58 ++++++++++++++++++++++++++++++ drivers/clocksource/hyperv_timer.c | 14 +++++++- include/clocksource/hyperv_timer.h | 2 ++ 3 files changed, 73 insertions(+), 1 deletion(-) diff --git a/arch/x86/kernel/cpu/mshyperv.c b/arch/x86/kernel/cpu/mshyperv.c index ead967479fa6..e8e25d6e64cd 100644 --- a/arch/x86/kernel/cpu/mshyperv.c +++ b/arch/x86/kernel/cpu/mshyperv.c @@ -224,6 +224,63 @@ static void hv_machine_crash_shutdown(struct pt_regs *regs) hyperv_cleanup(); } #endif /* CONFIG_CRASH_DUMP */ + +static u64 hv_ref_counter_at_suspend; +static void (*old_save_sched_clock_state)(void); +static void (*old_restore_sched_clock_state)(void); + +/* + * Hyper-V clock counter resets during hibernation. Save and restore clock + * offset during suspend/resume, while also considering the time passed + * before suspend. This is to make sure that sched_clock using hv tsc page + * based clocksource, proceeds from where it left off during suspend and + * it shows correct time for the timestamps of kernel messages after resume. + */ +static void save_hv_clock_tsc_state(void) +{ + hv_ref_counter_at_suspend = hv_read_reference_counter(); +} + +static void restore_hv_clock_tsc_state(void) +{ + /* + * Adjust the offsets used by hv tsc clocksource to + * account for the time spent before hibernation. + * adjusted value = reference counter (time) at suspend + * - reference counter (time) now. + */ + hv_adj_sched_clock_offset(hv_ref_counter_at_suspend - hv_read_reference_counter()); +} + +/* + * Functions to override save_sched_clock_state and restore_sched_clock_state + * functions of x86_platform. The Hyper-V clock counter is reset during + * suspend-resume and the offset used to measure time needs to be + * corrected, post resume. + */ +static void hv_save_sched_clock_state(void) +{ + old_save_sched_clock_state(); + save_hv_clock_tsc_state(); +} + +static void hv_restore_sched_clock_state(void) +{ + restore_hv_clock_tsc_state(); + old_restore_sched_clock_state(); +} + +static void __init x86_setup_ops_for_tsc_pg_clock(void) +{ + if (!(ms_hyperv.features & HV_MSR_REFERENCE_TSC_AVAILABLE)) + return; + + old_save_sched_clock_state = x86_platform.save_sched_clock_state; + x86_platform.save_sched_clock_state = hv_save_sched_clock_state; + + old_restore_sched_clock_state = x86_platform.restore_sched_clock_state; + x86_platform.restore_sched_clock_state = hv_restore_sched_clock_state; +} #endif /* CONFIG_HYPERV */ static uint32_t __init ms_hyperv_platform(void) @@ -590,6 +647,7 @@ static void __init ms_hyperv_init_platform(void) /* Register Hyper-V specific clocksource */ hv_init_clocksource(); + x86_setup_ops_for_tsc_pg_clock(); hv_vtl_init_platform(); #endif /* diff --git a/drivers/clocksource/hyperv_timer.c b/drivers/clocksource/hyperv_timer.c index 99177835cade..b39dee7b93af 100644 --- a/drivers/clocksource/hyperv_timer.c +++ b/drivers/clocksource/hyperv_timer.c @@ -27,7 +27,8 @@ #include <asm/mshyperv.h> static struct clock_event_device __percpu *hv_clock_event; -static u64 hv_sched_clock_offset __ro_after_init; +/* Note: offset can hold negative values after hibernation. */ +static u64 hv_sched_clock_offset __read_mostly; /* * If false, we're using the old mechanism for stimer0 interrupts @@ -470,6 +471,17 @@ static void resume_hv_clock_tsc(struct clocksource *arg) hv_set_msr(HV_MSR_REFERENCE_TSC, tsc_msr.as_uint64); } +/* + * Called during resume from hibernation, from overridden + * x86_platform.restore_sched_clock_state routine. This is to adjust offsets + * used to calculate time for hv tsc page based sched_clock, to account for + * time spent before hibernation. + */ +void hv_adj_sched_clock_offset(u64 offset) +{ + hv_sched_clock_offset -= offset; +} + #ifdef HAVE_VDSO_CLOCKMODE_HVCLOCK static int hv_cs_enable(struct clocksource *cs) { diff --git a/include/clocksource/hyperv_timer.h b/include/clocksource/hyperv_timer.h index 6cdc873ac907..aa5233b1eba9 100644 --- a/include/clocksource/hyperv_timer.h +++ b/include/clocksource/hyperv_timer.h @@ -38,6 +38,8 @@ extern void hv_remap_tsc_clocksource(void); extern unsigned long hv_get_tsc_pfn(void); extern struct ms_hyperv_tsc_page *hv_get_tsc_page(void); +extern void hv_adj_sched_clock_offset(u64 offset); + static __always_inline bool hv_read_tsc_page_tsc(const struct ms_hyperv_tsc_page *tsc_pg, u64 *cur_tsc, u64 *time) base-commit: a430d95c5efa2b545d26a094eb5f624e36732af0 -- 2.34.1

9 months

3
3
0 0

[PATCH] tools: hv: Fix a complier warning in the fcopy uio daemon

by Dexuan Cui

hv_fcopy_uio_daemon.c:436:53: warning: '%s' directive output may be truncated writing up to 14 bytes into a region of size 10 [-Wformat-truncation=] 436 | snprintf(uio_dev_path, sizeof(uio_dev_path), "/dev/%s", uio_name); Also added 'static' for the array 'desc[]'. Fixes: 82b0945ce2c2 ("tools: hv: Add new fcopy application based on uio driver") Cc: stable(a)vger.kernel.org # 6.10+ Signed-off-by: Dexuan Cui <decui(a)microsoft.com> --- tools/hv/hv_fcopy_uio_daemon.c | 8 +++----- 1 file changed, 3 insertions(+), 5 deletions(-) diff --git a/tools/hv/hv_fcopy_uio_daemon.c b/tools/hv/hv_fcopy_uio_daemon.c index 3ce316cc9f97..f7741af08a79 100644 --- a/tools/hv/hv_fcopy_uio_daemon.c +++ b/tools/hv/hv_fcopy_uio_daemon.c @@ -35,8 +35,6 @@ #define WIN8_SRV_MINOR 1 #define WIN8_SRV_VERSION (WIN8_SRV_MAJOR << 16 | WIN8_SRV_MINOR) -#define MAX_FOLDER_NAME 15 -#define MAX_PATH_LEN 15 #define FCOPY_UIO "/sys/bus/vmbus/devices/eb765408-105f-49b6-b4aa-c123b64d17d4/uio" #define FCOPY_VER_COUNT 1 @@ -51,7 +49,7 @@ static const int fw_versions[] = { #define HV_RING_SIZE 0x4000 /* 16KB ring buffer size */ -unsigned char desc[HV_RING_SIZE]; +static unsigned char desc[HV_RING_SIZE]; static int target_fd; static char target_fname[PATH_MAX]; @@ -402,8 +400,8 @@ int main(int argc, char *argv[]) struct vmbus_br txbr, rxbr; void *ring; uint32_t len = HV_RING_SIZE; - char uio_name[MAX_FOLDER_NAME] = {0}; - char uio_dev_path[MAX_PATH_LEN] = {0}; + char uio_name[NAME_MAX] = {0}; + char uio_dev_path[PATH_MAX] = {0}; static struct option long_options[] = { {"help", no_argument, 0, 'h' }, -- 2.25.1

9 months

3
5
0 0

[PATCH 1/2] drm/amd/display: Skip Invalid Streams from DSC Policy

by Alex Deucher

From: Fangzhi Zuo <Jerry.Zuo(a)amd.com> Streams with invalid new connector state should be elimiated from dsc policy. Closes: https://gitlab.freedesktop.org/drm/amd/-/issues/3405 Reviewed-by: Aurabindo Pillai <aurabindo.pillai(a)amd.com> Signed-off-by: Fangzhi Zuo <Jerry.Zuo(a)amd.com> Signed-off-by: Rodrigo Siqueira <rodrigo.siqueira(a)amd.com> Tested-by: Daniel Wheeler <daniel.wheeler(a)amd.com> Signed-off-by: Alex Deucher <alexander.deucher(a)amd.com> (cherry picked from commit 9afeda04964281e9f708b92c2a9c4f8a1387b46e) Cc: stable(a)vger.kernel.org --- .../drm/amd/display/amdgpu_dm/amdgpu_dm_mst_types.c | 13 ++++++++++++- 1 file changed, 12 insertions(+), 1 deletion(-) diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_mst_types.c b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_mst_types.c index a08e8a0b696c..f756640048fe 100644 --- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_mst_types.c +++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_mst_types.c @@ -1120,6 +1120,7 @@ static int compute_mst_dsc_configs_for_link(struct drm_atomic_state *state, int i, k, ret; bool debugfs_overwrite = false; uint16_t fec_overhead_multiplier_x1000 = get_fec_overhead_multiplier(dc_link); + struct drm_connector_state *new_conn_state; memset(params, 0, sizeof(params)); @@ -1127,7 +1128,7 @@ static int compute_mst_dsc_configs_for_link(struct drm_atomic_state *state, return PTR_ERR(mst_state); /* Set up params */ - DRM_DEBUG_DRIVER("%s: MST_DSC Set up params for %d streams\n", __func__, dc_state->stream_count); + DRM_DEBUG_DRIVER("%s: MST_DSC Try to set up params from %d streams\n", __func__, dc_state->stream_count); for (i = 0; i < dc_state->stream_count; i++) { struct dc_dsc_policy dsc_policy = {0}; @@ -1143,6 +1144,14 @@ static int compute_mst_dsc_configs_for_link(struct drm_atomic_state *state, if (!aconnector->mst_output_port) continue; + new_conn_state = drm_atomic_get_new_connector_state(state, &aconnector->base); + + if (!new_conn_state) { + DRM_DEBUG_DRIVER("%s:%d MST_DSC Skip the stream 0x%p with invalid new_conn_state\n", + __func__, __LINE__, stream); + continue; + } + stream->timing.flags.DSC = 0; params[count].timing = &stream->timing; @@ -1175,6 +1184,8 @@ static int compute_mst_dsc_configs_for_link(struct drm_atomic_state *state, count++; } + DRM_DEBUG_DRIVER("%s: MST_DSC Params set up for %d streams\n", __func__, count); + if (count == 0) { ASSERT(0); return 0; -- 2.47.0

9 months

4
6
0 0

FAILED: patch "[PATCH] mm/damon/vaddr: fix issue in damon_va_evenly_split_region()" failed to apply to 6.6-stable tree

by gregkh＠linuxfoundation.org

The patch below does not apply to the 6.6-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-6.6.y git checkout FETCH_HEAD git cherry-pick -x f3c7a1ede435e2e45177d7a490a85fb0a0ec96d1 # <resolve conflicts, build, test, etc.> git commit -s git send-email --to '<stable(a)vger.kernel.org>' --in-reply-to '2024120622-postcard-cringe-b986@gregkh' --subject-prefix 'PATCH 6.6.y' HEAD^.. Possible dependencies: thanks, greg k-h ------------------ original commit in Linus's tree ------------------ From f3c7a1ede435e2e45177d7a490a85fb0a0ec96d1 Mon Sep 17 00:00:00 2001 From: Zheng Yejian <zhengyejian(a)huaweicloud.com> Date: Tue, 22 Oct 2024 16:39:26 +0800 Subject: [PATCH] mm/damon/vaddr: fix issue in damon_va_evenly_split_region() Patch series "mm/damon/vaddr: Fix issue in damon_va_evenly_split_region()". v2. According to the logic of damon_va_evenly_split_region(), currently following split case would not meet the expectation: Suppose DAMON_MIN_REGION=0x1000, Case: Split [0x0, 0x3000) into 2 pieces, then the result would be acutually 3 regions: [0x0, 0x1000), [0x1000, 0x2000), [0x2000, 0x3000) but NOT the expected 2 regions: [0x0, 0x1000), [0x1000, 0x3000) !!! The root cause is that when calculating size of each split piece in damon_va_evenly_split_region(): `sz_piece = ALIGN_DOWN(sz_orig / nr_pieces, DAMON_MIN_REGION);` both the dividing and the ALIGN_DOWN may cause loss of precision, then each time split one piece of size 'sz_piece' from origin 'start' to 'end' would cause more pieces are split out than expected!!! To fix it, count for each piece split and make sure no more than 'nr_pieces'. In addition, add above case into damon_test_split_evenly(). And add 'nr_piece == 1' check in damon_va_evenly_split_region() for better code readability and add a corresponding kunit testcase. This patch (of 2): According to the logic of damon_va_evenly_split_region(), currently following split case would not meet the expectation: Suppose DAMON_MIN_REGION=0x1000, Case: Split [0x0, 0x3000) into 2 pieces, then the result would be acutually 3 regions: [0x0, 0x1000), [0x1000, 0x2000), [0x2000, 0x3000) but NOT the expected 2 regions: [0x0, 0x1000), [0x1000, 0x3000) !!! The root cause is that when calculating size of each split piece in damon_va_evenly_split_region(): `sz_piece = ALIGN_DOWN(sz_orig / nr_pieces, DAMON_MIN_REGION);` both the dividing and the ALIGN_DOWN may cause loss of precision, then each time split one piece of size 'sz_piece' from origin 'start' to 'end' would cause more pieces are split out than expected!!! To fix it, count for each piece split and make sure no more than 'nr_pieces'. In addition, add above case into damon_test_split_evenly(). After this patch, damon-operations test passed: # ./tools/testing/kunit/kunit.py run damon-operations [...] ============== damon-operations (6 subtests) =============== [PASSED] damon_test_three_regions_in_vmas [PASSED] damon_test_apply_three_regions1 [PASSED] damon_test_apply_three_regions2 [PASSED] damon_test_apply_three_regions3 [PASSED] damon_test_apply_three_regions4 [PASSED] damon_test_split_evenly ================ [PASSED] damon-operations ================= Link: https://lkml.kernel.org/r/20241022083927.3592237-1-zhengyejian@huaweicloud.… Link: https://lkml.kernel.org/r/20241022083927.3592237-2-zhengyejian@huaweicloud.… Fixes: 3f49584b262c ("mm/damon: implement primitives for the virtual memory address spaces") Signed-off-by: Zheng Yejian <zhengyejian(a)huaweicloud.com> Reviewed-by: SeongJae Park <sj(a)kernel.org> Cc: Fernand Sieber <sieberf(a)amazon.com> Cc: Leonard Foerster <foersleo(a)amazon.de> Cc: Shakeel Butt <shakeel.butt(a)linux.dev> Cc: Ye Weihua <yeweihua4(a)huawei.com> Cc: <stable(a)vger.kernel.org> Signed-off-by: Andrew Morton <akpm(a)linux-foundation.org> diff --git a/mm/damon/tests/vaddr-kunit.h b/mm/damon/tests/vaddr-kunit.h index 3dad8dfd9005..fcdccb614fd8 100644 --- a/mm/damon/tests/vaddr-kunit.h +++ b/mm/damon/tests/vaddr-kunit.h @@ -300,6 +300,7 @@ static void damon_test_split_evenly(struct kunit *test) damon_test_split_evenly_fail(test, 0, 100, 0); damon_test_split_evenly_succ(test, 0, 100, 10); damon_test_split_evenly_succ(test, 5, 59, 5); + damon_test_split_evenly_succ(test, 0, 3, 2); damon_test_split_evenly_fail(test, 5, 6, 2); } diff --git a/mm/damon/vaddr.c b/mm/damon/vaddr.c index 821990d0141a..86f612fbf886 100644 --- a/mm/damon/vaddr.c +++ b/mm/damon/vaddr.c @@ -67,6 +67,7 @@ static int damon_va_evenly_split_region(struct damon_target *t, unsigned long sz_orig, sz_piece, orig_end; struct damon_region *n = NULL, *next; unsigned long start; + unsigned int i; if (!r || !nr_pieces) return -EINVAL; @@ -80,8 +81,7 @@ static int damon_va_evenly_split_region(struct damon_target *t, r->ar.end = r->ar.start + sz_piece; next = damon_next_region(r); - for (start = r->ar.end; start + sz_piece <= orig_end; - start += sz_piece) { + for (start = r->ar.end, i = 1; i < nr_pieces; start += sz_piece, i++) { n = damon_new_region(start, start + sz_piece); if (!n) return -ENOMEM;

9 months

3
3
0 0

FAILED: patch "[PATCH] mm/damon/vaddr: fix issue in damon_va_evenly_split_region()" failed to apply to 6.1-stable tree

by gregkh＠linuxfoundation.org

The patch below does not apply to the 6.1-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-6.1.y git checkout FETCH_HEAD git cherry-pick -x f3c7a1ede435e2e45177d7a490a85fb0a0ec96d1 # <resolve conflicts, build, test, etc.> git commit -s git send-email --to '<stable(a)vger.kernel.org>' --in-reply-to '2024120624-repeater-require-e263@gregkh' --subject-prefix 'PATCH 6.1.y' HEAD^.. Possible dependencies: thanks, greg k-h ------------------ original commit in Linus's tree ------------------ From f3c7a1ede435e2e45177d7a490a85fb0a0ec96d1 Mon Sep 17 00:00:00 2001 From: Zheng Yejian <zhengyejian(a)huaweicloud.com> Date: Tue, 22 Oct 2024 16:39:26 +0800 Subject: [PATCH] mm/damon/vaddr: fix issue in damon_va_evenly_split_region() Patch series "mm/damon/vaddr: Fix issue in damon_va_evenly_split_region()". v2. According to the logic of damon_va_evenly_split_region(), currently following split case would not meet the expectation: Suppose DAMON_MIN_REGION=0x1000, Case: Split [0x0, 0x3000) into 2 pieces, then the result would be acutually 3 regions: [0x0, 0x1000), [0x1000, 0x2000), [0x2000, 0x3000) but NOT the expected 2 regions: [0x0, 0x1000), [0x1000, 0x3000) !!! The root cause is that when calculating size of each split piece in damon_va_evenly_split_region(): `sz_piece = ALIGN_DOWN(sz_orig / nr_pieces, DAMON_MIN_REGION);` both the dividing and the ALIGN_DOWN may cause loss of precision, then each time split one piece of size 'sz_piece' from origin 'start' to 'end' would cause more pieces are split out than expected!!! To fix it, count for each piece split and make sure no more than 'nr_pieces'. In addition, add above case into damon_test_split_evenly(). And add 'nr_piece == 1' check in damon_va_evenly_split_region() for better code readability and add a corresponding kunit testcase. This patch (of 2): According to the logic of damon_va_evenly_split_region(), currently following split case would not meet the expectation: Suppose DAMON_MIN_REGION=0x1000, Case: Split [0x0, 0x3000) into 2 pieces, then the result would be acutually 3 regions: [0x0, 0x1000), [0x1000, 0x2000), [0x2000, 0x3000) but NOT the expected 2 regions: [0x0, 0x1000), [0x1000, 0x3000) !!! The root cause is that when calculating size of each split piece in damon_va_evenly_split_region(): `sz_piece = ALIGN_DOWN(sz_orig / nr_pieces, DAMON_MIN_REGION);` both the dividing and the ALIGN_DOWN may cause loss of precision, then each time split one piece of size 'sz_piece' from origin 'start' to 'end' would cause more pieces are split out than expected!!! To fix it, count for each piece split and make sure no more than 'nr_pieces'. In addition, add above case into damon_test_split_evenly(). After this patch, damon-operations test passed: # ./tools/testing/kunit/kunit.py run damon-operations [...] ============== damon-operations (6 subtests) =============== [PASSED] damon_test_three_regions_in_vmas [PASSED] damon_test_apply_three_regions1 [PASSED] damon_test_apply_three_regions2 [PASSED] damon_test_apply_three_regions3 [PASSED] damon_test_apply_three_regions4 [PASSED] damon_test_split_evenly ================ [PASSED] damon-operations ================= Link: https://lkml.kernel.org/r/20241022083927.3592237-1-zhengyejian@huaweicloud.… Link: https://lkml.kernel.org/r/20241022083927.3592237-2-zhengyejian@huaweicloud.… Fixes: 3f49584b262c ("mm/damon: implement primitives for the virtual memory address spaces") Signed-off-by: Zheng Yejian <zhengyejian(a)huaweicloud.com> Reviewed-by: SeongJae Park <sj(a)kernel.org> Cc: Fernand Sieber <sieberf(a)amazon.com> Cc: Leonard Foerster <foersleo(a)amazon.de> Cc: Shakeel Butt <shakeel.butt(a)linux.dev> Cc: Ye Weihua <yeweihua4(a)huawei.com> Cc: <stable(a)vger.kernel.org> Signed-off-by: Andrew Morton <akpm(a)linux-foundation.org> diff --git a/mm/damon/tests/vaddr-kunit.h b/mm/damon/tests/vaddr-kunit.h index 3dad8dfd9005..fcdccb614fd8 100644 --- a/mm/damon/tests/vaddr-kunit.h +++ b/mm/damon/tests/vaddr-kunit.h @@ -300,6 +300,7 @@ static void damon_test_split_evenly(struct kunit *test) damon_test_split_evenly_fail(test, 0, 100, 0); damon_test_split_evenly_succ(test, 0, 100, 10); damon_test_split_evenly_succ(test, 5, 59, 5); + damon_test_split_evenly_succ(test, 0, 3, 2); damon_test_split_evenly_fail(test, 5, 6, 2); } diff --git a/mm/damon/vaddr.c b/mm/damon/vaddr.c index 821990d0141a..86f612fbf886 100644 --- a/mm/damon/vaddr.c +++ b/mm/damon/vaddr.c @@ -67,6 +67,7 @@ static int damon_va_evenly_split_region(struct damon_target *t, unsigned long sz_orig, sz_piece, orig_end; struct damon_region *n = NULL, *next; unsigned long start; + unsigned int i; if (!r || !nr_pieces) return -EINVAL; @@ -80,8 +81,7 @@ static int damon_va_evenly_split_region(struct damon_target *t, r->ar.end = r->ar.start + sz_piece; next = damon_next_region(r); - for (start = r->ar.end; start + sz_piece <= orig_end; - start += sz_piece) { + for (start = r->ar.end, i = 1; i < nr_pieces; start += sz_piece, i++) { n = damon_new_region(start, start + sz_piece); if (!n) return -ENOMEM;

9 months

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FAILED: patch "[PATCH] mm/damon/vaddr: fix issue in damon_va_evenly_split_region()" 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 f3c7a1ede435e2e45177d7a490a85fb0a0ec96d1 # <resolve conflicts, build, test, etc.> git commit -s git send-email --to '<stable(a)vger.kernel.org>' --in-reply-to '2024120625-recycling-till-0cca@gregkh' --subject-prefix 'PATCH 5.15.y' HEAD^.. Possible dependencies: thanks, greg k-h ------------------ original commit in Linus's tree ------------------ From f3c7a1ede435e2e45177d7a490a85fb0a0ec96d1 Mon Sep 17 00:00:00 2001 From: Zheng Yejian <zhengyejian(a)huaweicloud.com> Date: Tue, 22 Oct 2024 16:39:26 +0800 Subject: [PATCH] mm/damon/vaddr: fix issue in damon_va_evenly_split_region() Patch series "mm/damon/vaddr: Fix issue in damon_va_evenly_split_region()". v2. According to the logic of damon_va_evenly_split_region(), currently following split case would not meet the expectation: Suppose DAMON_MIN_REGION=0x1000, Case: Split [0x0, 0x3000) into 2 pieces, then the result would be acutually 3 regions: [0x0, 0x1000), [0x1000, 0x2000), [0x2000, 0x3000) but NOT the expected 2 regions: [0x0, 0x1000), [0x1000, 0x3000) !!! The root cause is that when calculating size of each split piece in damon_va_evenly_split_region(): `sz_piece = ALIGN_DOWN(sz_orig / nr_pieces, DAMON_MIN_REGION);` both the dividing and the ALIGN_DOWN may cause loss of precision, then each time split one piece of size 'sz_piece' from origin 'start' to 'end' would cause more pieces are split out than expected!!! To fix it, count for each piece split and make sure no more than 'nr_pieces'. In addition, add above case into damon_test_split_evenly(). And add 'nr_piece == 1' check in damon_va_evenly_split_region() for better code readability and add a corresponding kunit testcase. This patch (of 2): According to the logic of damon_va_evenly_split_region(), currently following split case would not meet the expectation: Suppose DAMON_MIN_REGION=0x1000, Case: Split [0x0, 0x3000) into 2 pieces, then the result would be acutually 3 regions: [0x0, 0x1000), [0x1000, 0x2000), [0x2000, 0x3000) but NOT the expected 2 regions: [0x0, 0x1000), [0x1000, 0x3000) !!! The root cause is that when calculating size of each split piece in damon_va_evenly_split_region(): `sz_piece = ALIGN_DOWN(sz_orig / nr_pieces, DAMON_MIN_REGION);` both the dividing and the ALIGN_DOWN may cause loss of precision, then each time split one piece of size 'sz_piece' from origin 'start' to 'end' would cause more pieces are split out than expected!!! To fix it, count for each piece split and make sure no more than 'nr_pieces'. In addition, add above case into damon_test_split_evenly(). After this patch, damon-operations test passed: # ./tools/testing/kunit/kunit.py run damon-operations [...] ============== damon-operations (6 subtests) =============== [PASSED] damon_test_three_regions_in_vmas [PASSED] damon_test_apply_three_regions1 [PASSED] damon_test_apply_three_regions2 [PASSED] damon_test_apply_three_regions3 [PASSED] damon_test_apply_three_regions4 [PASSED] damon_test_split_evenly ================ [PASSED] damon-operations ================= Link: https://lkml.kernel.org/r/20241022083927.3592237-1-zhengyejian@huaweicloud.… Link: https://lkml.kernel.org/r/20241022083927.3592237-2-zhengyejian@huaweicloud.… Fixes: 3f49584b262c ("mm/damon: implement primitives for the virtual memory address spaces") Signed-off-by: Zheng Yejian <zhengyejian(a)huaweicloud.com> Reviewed-by: SeongJae Park <sj(a)kernel.org> Cc: Fernand Sieber <sieberf(a)amazon.com> Cc: Leonard Foerster <foersleo(a)amazon.de> Cc: Shakeel Butt <shakeel.butt(a)linux.dev> Cc: Ye Weihua <yeweihua4(a)huawei.com> Cc: <stable(a)vger.kernel.org> Signed-off-by: Andrew Morton <akpm(a)linux-foundation.org> diff --git a/mm/damon/tests/vaddr-kunit.h b/mm/damon/tests/vaddr-kunit.h index 3dad8dfd9005..fcdccb614fd8 100644 --- a/mm/damon/tests/vaddr-kunit.h +++ b/mm/damon/tests/vaddr-kunit.h @@ -300,6 +300,7 @@ static void damon_test_split_evenly(struct kunit *test) damon_test_split_evenly_fail(test, 0, 100, 0); damon_test_split_evenly_succ(test, 0, 100, 10); damon_test_split_evenly_succ(test, 5, 59, 5); + damon_test_split_evenly_succ(test, 0, 3, 2); damon_test_split_evenly_fail(test, 5, 6, 2); } diff --git a/mm/damon/vaddr.c b/mm/damon/vaddr.c index 821990d0141a..86f612fbf886 100644 --- a/mm/damon/vaddr.c +++ b/mm/damon/vaddr.c @@ -67,6 +67,7 @@ static int damon_va_evenly_split_region(struct damon_target *t, unsigned long sz_orig, sz_piece, orig_end; struct damon_region *n = NULL, *next; unsigned long start; + unsigned int i; if (!r || !nr_pieces) return -EINVAL; @@ -80,8 +81,7 @@ static int damon_va_evenly_split_region(struct damon_target *t, r->ar.end = r->ar.start + sz_piece; next = damon_next_region(r); - for (start = r->ar.end; start + sz_piece <= orig_end; - start += sz_piece) { + for (start = r->ar.end, i = 1; i < nr_pieces; start += sz_piece, i++) { n = damon_new_region(start, start + sz_piece); if (!n) return -ENOMEM;

9 months

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[PATCH 6.6] KVM: x86/mmu: Ensure that kvm_release_pfn_clean() takes exact pfn from kvm_faultin_pfn()

by Nikolay Kuratov

Since 5.16 and prior to 6.13 KVM can't be used with FSDAX guest memory (PMD pages). To reproduce the issue you need to reserve guest memory with `memmap=` cmdline, create and mount FS in DAX mode (tested both XFS and ext4), see doc link below. ndctl command for test: ndctl create-namespace -v -e namespace1.0 --map=dev --mode=fsdax -a 2M Then pass memory object to qemu like: -m 8G -object memory-backend-file,id=ram0,size=8G,\ mem-path=/mnt/pmem/guestmem,share=on,prealloc=on,dump=off,align=2097152 \ -numa node,memdev=ram0,cpus=0-1 QEMU fails to run guest with error: kvm run failed Bad address and there are two warnings in dmesg: WARN_ON_ONCE(!page_count(page)) in kvm_is_zone_device_page() and WARN_ON_ONCE(folio_ref_count(folio) <= 0) in try_grab_folio() (v6.6.63) It looks like in the past assumption was made that pfn won't change from faultin_pfn() to release_pfn_clean(), e.g. see commit 4cd071d13c5c ("KVM: x86/mmu: Move calls to thp_adjust() down a level") But kvm_page_fault structure made pfn part of mutable state, so now release_pfn_clean() can take hugepage-adjusted pfn. And it works for all cases (/dev/shm, hugetlb, devdax) except fsdax. Apparently in fsdax mode faultin-pfn and adjusted-pfn may refer to different folios, so we're getting get_page/put_page imbalance. To solve this preserve faultin pfn in separate kvm_page_fault field and pass it in kvm_release_pfn_clean(). Patch tested for all mentioned guest memory backends with tdp_mmu={0,1}. No bug in upstream as it was solved fundamentally by commit 8dd861cc07e2 ("KVM: x86/mmu: Put refcounted pages instead of blindly releasing pfns") and related patch series. Link: https://nvdimm.docs.kernel.org/2mib_fs_dax.html Fixes: 2f6305dd5676 ("KVM: MMU: change kvm_tdp_mmu_map() arguments to kvm_page_fault") Signed-off-by: Nikolay Kuratov <kniv(a)yandex-team.ru> --- arch/x86/kvm/mmu/mmu.c | 5 +++-- arch/x86/kvm/mmu/mmu_internal.h | 2 ++ arch/x86/kvm/mmu/paging_tmpl.h | 2 +- 3 files changed, 6 insertions(+), 3 deletions(-) diff --git a/arch/x86/kvm/mmu/mmu.c b/arch/x86/kvm/mmu/mmu.c index 294775b7383b..2105f3bc2e59 100644 --- a/arch/x86/kvm/mmu/mmu.c +++ b/arch/x86/kvm/mmu/mmu.c @@ -4321,6 +4321,7 @@ static int kvm_faultin_pfn(struct kvm_vcpu *vcpu, struct kvm_page_fault *fault, smp_rmb(); ret = __kvm_faultin_pfn(vcpu, fault); + fault->faultin_pfn = fault->pfn; if (ret != RET_PF_CONTINUE) return ret; @@ -4398,7 +4399,7 @@ static int direct_page_fault(struct kvm_vcpu *vcpu, struct kvm_page_fault *fault out_unlock: write_unlock(&vcpu->kvm->mmu_lock); - kvm_release_pfn_clean(fault->pfn); + kvm_release_pfn_clean(fault->faultin_pfn); return r; } @@ -4474,7 +4475,7 @@ static int kvm_tdp_mmu_page_fault(struct kvm_vcpu *vcpu, out_unlock: read_unlock(&vcpu->kvm->mmu_lock); - kvm_release_pfn_clean(fault->pfn); + kvm_release_pfn_clean(fault->faultin_pfn); return r; } #endif diff --git a/arch/x86/kvm/mmu/mmu_internal.h b/arch/x86/kvm/mmu/mmu_internal.h index decc1f153669..a016b51f9c62 100644 --- a/arch/x86/kvm/mmu/mmu_internal.h +++ b/arch/x86/kvm/mmu/mmu_internal.h @@ -236,6 +236,8 @@ struct kvm_page_fault { /* Outputs of kvm_faultin_pfn. */ unsigned long mmu_seq; kvm_pfn_t pfn; + /* pfn copy for kvm_release_pfn_clean(), constant after kvm_faultin_pfn() */ + kvm_pfn_t faultin_pfn; hva_t hva; bool map_writable; diff --git a/arch/x86/kvm/mmu/paging_tmpl.h b/arch/x86/kvm/mmu/paging_tmpl.h index c85255073f67..b945dde6e3be 100644 --- a/arch/x86/kvm/mmu/paging_tmpl.h +++ b/arch/x86/kvm/mmu/paging_tmpl.h @@ -848,7 +848,7 @@ static int FNAME(page_fault)(struct kvm_vcpu *vcpu, struct kvm_page_fault *fault out_unlock: write_unlock(&vcpu->kvm->mmu_lock); - kvm_release_pfn_clean(fault->pfn); + kvm_release_pfn_clean(fault->faultin_pfn); return r; } -- 2.34.1

9 months

4
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0 0

FAILED: patch "[PATCH] powerpc/vdso: Drop -mstack-protector-guard flags in 32-bit" failed to apply to 6.6-stable tree

by gregkh＠linuxfoundation.org

The patch below does not apply to the 6.6-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-6.6.y git checkout FETCH_HEAD git cherry-pick -x d677ce521334d8f1f327cafc8b1b7854b0833158 # <resolve conflicts, build, test, etc.> git commit -s git send-email --to '<stable(a)vger.kernel.org>' --in-reply-to '2024120641-patriarch-wiring-1eed@gregkh' --subject-prefix 'PATCH 6.6.y' HEAD^.. Possible dependencies: thanks, greg k-h ------------------ original commit in Linus's tree ------------------ From d677ce521334d8f1f327cafc8b1b7854b0833158 Mon Sep 17 00:00:00 2001 From: Nathan Chancellor <nathan(a)kernel.org> Date: Wed, 30 Oct 2024 11:41:37 -0700 Subject: [PATCH] powerpc/vdso: Drop -mstack-protector-guard flags in 32-bit files with clang Under certain conditions, the 64-bit '-mstack-protector-guard' flags may end up in the 32-bit vDSO flags, resulting in build failures due to the structure of clang's argument parsing of the stack protector options, which validates the arguments of the stack protector guard flags unconditionally in the frontend, choking on the 64-bit values when targeting 32-bit: clang: error: invalid value 'r13' in 'mstack-protector-guard-reg=', expected one of: r2 clang: error: invalid value 'r13' in 'mstack-protector-guard-reg=', expected one of: r2 make[3]: *** [arch/powerpc/kernel/vdso/Makefile:85: arch/powerpc/kernel/vdso/vgettimeofday-32.o] Error 1 make[3]: *** [arch/powerpc/kernel/vdso/Makefile:87: arch/powerpc/kernel/vdso/vgetrandom-32.o] Error 1 Remove these flags by adding them to the CC32FLAGSREMOVE variable, which already handles situations similar to this. Additionally, reformat and align a comment better for the expanding CONFIG_CC_IS_CLANG block. Cc: stable(a)vger.kernel.org # v6.1+ Signed-off-by: Nathan Chancellor <nathan(a)kernel.org> Signed-off-by: Michael Ellerman <mpe(a)ellerman.id.au> Link: https://patch.msgid.link/20241030-powerpc-vdso-drop-stackp-flags-clang-v1-1… diff --git a/arch/powerpc/kernel/vdso/Makefile b/arch/powerpc/kernel/vdso/Makefile index 31ca5a547004..c568cad6a22e 100644 --- a/arch/powerpc/kernel/vdso/Makefile +++ b/arch/powerpc/kernel/vdso/Makefile @@ -54,10 +54,14 @@ ldflags-y += $(filter-out $(CC_AUTO_VAR_INIT_ZERO_ENABLER) $(CC_FLAGS_FTRACE) -W CC32FLAGS := -m32 CC32FLAGSREMOVE := -mcmodel=medium -mabi=elfv1 -mabi=elfv2 -mcall-aixdesc - # This flag is supported by clang for 64-bit but not 32-bit so it will cause - # an unused command line flag warning for this file. ifdef CONFIG_CC_IS_CLANG +# This flag is supported by clang for 64-bit but not 32-bit so it will cause +# an unused command line flag warning for this file. CC32FLAGSREMOVE += -fno-stack-clash-protection +# -mstack-protector-guard values from the 64-bit build are not valid for the +# 32-bit one. clang validates the values passed to these arguments during +# parsing, even when -fno-stack-protector is passed afterwards. +CC32FLAGSREMOVE += -mstack-protector-guard% endif LD32FLAGS := -Wl,-soname=linux-vdso32.so.1 AS32FLAGS := -D__VDSO32__

9 months

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