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[PATCH OLK-5.10] blk-mq: fix IO hang from sbitmap wakeup race
by Li Lingfeng 27 Feb '24

27 Feb '24

From: Ming Lei <ming.lei(a)redhat.com> mainline inclusion from mainline-v6.8-rc1 commit 5266caaf5660529e3da53004b8b7174cab6374ed category: bugfix bugzilla: https://gitee.com/openeuler/kernel/issues/I943Q7 CVE: NA Reference: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?… -------------------------------- In blk_mq_mark_tag_wait(), __add_wait_queue() may be re-ordered with the following blk_mq_get_driver_tag() in case of getting driver tag failure. Then in __sbitmap_queue_wake_up(), waitqueue_active() may not observe the added waiter in blk_mq_mark_tag_wait() and wake up nothing, meantime blk_mq_mark_tag_wait() can't get driver tag successfully. This issue can be reproduced by running the following test in loop, and fio hang can be observed in < 30min when running it on my test VM in laptop. modprobe -r scsi_debug modprobe scsi_debug delay=0 dev_size_mb=4096 max_queue=1 host_max_queue=1 submit_queues=4 dev=`ls -d /sys/bus/pseudo/drivers/scsi_debug/adapter*/host*/target*/*/block/* | head -1 | xargs basename` fio --filename=/dev/"$dev" --direct=1 --rw=randrw --bs=4k --iodepth=1 \ --runtime=100 --numjobs=40 --time_based --name=test \ --ioengine=libaio Fix the issue by adding one explicit barrier in blk_mq_mark_tag_wait(), which is just fine in case of running out of tag. Cc: Jan Kara <jack(a)suse.cz> Cc: Kemeng Shi <shikemeng(a)huaweicloud.com> Reported-by: Changhui Zhong <czhong(a)redhat.com> Signed-off-by: Ming Lei <ming.lei(a)redhat.com> Link: https://lore.kernel.org/r/20240112122626.4181044-1-ming.lei@redhat.com Signed-off-by: Jens Axboe <axboe(a)kernel.dk> Signed-off-by: Li Lingfeng <lilingfeng3(a)huawei.com> --- block/blk-mq.c | 16 ++++++++++++++++ 1 file changed, 16 insertions(+) diff --git a/block/blk-mq.c b/block/blk-mq.c index 9ec937a6ae6c..a28957dfb757 100644 --- a/block/blk-mq.c +++ b/block/blk-mq.c @@ -1277,6 +1277,22 @@ static bool blk_mq_mark_tag_wait(struct blk_mq_hw_ctx *hctx, wait->flags &= ~WQ_FLAG_EXCLUSIVE; __add_wait_queue(wq, wait); + /* + * Add one explicit barrier since blk_mq_get_driver_tag() may + * not imply barrier in case of failure. + * + * Order adding us to wait queue and allocating driver tag. + * + * The pair is the one implied in sbitmap_queue_wake_up() which + * orders clearing sbitmap tag bits and waitqueue_active() in + * __sbitmap_queue_wake_up(), since waitqueue_active() is lockless + * + * Otherwise, re-order of adding wait queue and getting driver tag + * may cause __sbitmap_queue_wake_up() to wake up nothing because + * the waitqueue_active() may not observe us in wait queue. + */ + smp_mb(); + /* * It's possible that a tag was freed in the window between the * allocation failure and adding the hardware queue to the wait -- 2.31.1

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[PATCH openEuler-1.0-LTS] blk-mq: fix IO hang from sbitmap wakeup race
by Li Lingfeng 27 Feb '24

27 Feb '24

From: Ming Lei <ming.lei(a)redhat.com> mainline inclusion from mainline-v6.8-rc1 commit 5266caaf5660529e3da53004b8b7174cab6374ed category: bugfix bugzilla: https://gitee.com/openeuler/kernel/issues/I943P5 CVE: NA Reference: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?… -------------------------------- In blk_mq_mark_tag_wait(), __add_wait_queue() may be re-ordered with the following blk_mq_get_driver_tag() in case of getting driver tag failure. Then in __sbitmap_queue_wake_up(), waitqueue_active() may not observe the added waiter in blk_mq_mark_tag_wait() and wake up nothing, meantime blk_mq_mark_tag_wait() can't get driver tag successfully. This issue can be reproduced by running the following test in loop, and fio hang can be observed in < 30min when running it on my test VM in laptop. modprobe -r scsi_debug modprobe scsi_debug delay=0 dev_size_mb=4096 max_queue=1 host_max_queue=1 submit_queues=4 dev=`ls -d /sys/bus/pseudo/drivers/scsi_debug/adapter*/host*/target*/*/block/* | head -1 | xargs basename` fio --filename=/dev/"$dev" --direct=1 --rw=randrw --bs=4k --iodepth=1 \ --runtime=100 --numjobs=40 --time_based --name=test \ --ioengine=libaio Fix the issue by adding one explicit barrier in blk_mq_mark_tag_wait(), which is just fine in case of running out of tag. Cc: Jan Kara <jack(a)suse.cz> Cc: Kemeng Shi <shikemeng(a)huaweicloud.com> Reported-by: Changhui Zhong <czhong(a)redhat.com> Signed-off-by: Ming Lei <ming.lei(a)redhat.com> Link: https://lore.kernel.org/r/20240112122626.4181044-1-ming.lei@redhat.com Signed-off-by: Jens Axboe <axboe(a)kernel.dk> Signed-off-by: Li Lingfeng <lilingfeng3(a)huawei.com> --- block/blk-mq.c | 16 ++++++++++++++++ 1 file changed, 16 insertions(+) diff --git a/block/blk-mq.c b/block/blk-mq.c index 96debbe63ad2..aa4b3c608249 100644 --- a/block/blk-mq.c +++ b/block/blk-mq.c @@ -1137,6 +1137,22 @@ static bool blk_mq_mark_tag_wait(struct blk_mq_hw_ctx *hctx, wait->flags &= ~WQ_FLAG_EXCLUSIVE; __add_wait_queue(wq, wait); + /* + * Add one explicit barrier since blk_mq_get_driver_tag() may + * not imply barrier in case of failure. + * + * Order adding us to wait queue and allocating driver tag. + * + * The pair is the one implied in sbitmap_queue_wake_up() which + * orders clearing sbitmap tag bits and waitqueue_active() in + * __sbitmap_queue_wake_up(), since waitqueue_active() is lockless + * + * Otherwise, re-order of adding wait queue and getting driver tag + * may cause __sbitmap_queue_wake_up() to wake up nothing because + * the waitqueue_active() may not observe us in wait queue. + */ + smp_mb(); + /* * It's possible that a tag was freed in the window between the * allocation failure and adding the hardware queue to the wait -- 2.31.1

2 1

[PATCH OLK-6.6 0/3] kabi: reserve space for arch related
by Liao Chen 27 Feb '24

27 Feb '24

reserve space for struct irq_work reserve space for enum irq_domain_bus_token reserve space for struct mfd_cell Liao Chen (3): kabi: reserve space for struct irq_work kabi: reserve space for enum irq_domain_bus_token kabi: reserve space for struct mfd_cell include/linux/irq_work.h | 5 +++++ include/linux/irqdomain_defs.h | 8 ++++++++ include/linux/mfd/core.h | 6 ++++++ 3 files changed, 19 insertions(+) -- 2.34.1

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[openeuler:OLK-6.6] BUILD REGRESSION 038c00b1896898752288ca81d9cac182afc6d6ab
by kernel test robot 27 Feb '24

27 Feb '24

tree/branch: https://gitee.com/openeuler/kernel.git OLK-6.6 branch HEAD: 038c00b1896898752288ca81d9cac182afc6d6ab !4660 Intel: Backport to fix In Field Scan(IFS) SAF for GNR & SRF Error/Warning reports: https://lore.kernel.org/oe-kbuild-all/202402271032.NbR2jDIl-lkp@intel.com Error/Warning: (recently discovered and may have been fixed) drivers/infiniband/hw/hns/hns_roce_hw_v2.c:4835:5: warning: no previous prototype for 'hns_roce_hw_v2_get_dscp' [-Wmissing-prototypes] Error/Warning ids grouped by kconfigs: gcc_recent_errors |-- arm64-defconfig | |-- aarch64-linux-ld:arch-arm64-include-asm-kvm_mmu.h:(.hyp.text):undefined-reference-to-__kvm_nvhe_kvm_ncsnp_support | |-- aarch64-linux-ld:arch-arm64-kvm-hyp-nvhe-..-pgtable.c:(.hyp.text):undefined-reference-to-__kvm_nvhe_kvm_ncsnp_support | |-- arch-arm64-include-asm-kvm_mmu.h:(.hyp.text):dangerous-relocation:unsupported-relocation | |-- arch-arm64-include-asm-kvm_mmu.h:(.hyp.text):undefined-reference-to-__kvm_nvhe_kvm_ncsnp_support | |-- arch-arm64-kvm-hyp-nvhe-..-pgtable.c:(.hyp.text):dangerous-relocation:unsupported-relocation | `-- arch-arm64-kvm-hyp-nvhe-..-pgtable.c:(.hyp.text):undefined-reference-to-__kvm_nvhe_kvm_ncsnp_support |-- arm64-randconfig-002-20240227 | `-- drivers-dax-super.c:warning:Function-parameter-or-member-KABI_RESERVE(-not-described-in-dax_device |-- arm64-randconfig-003-20240227 | |-- aarch64-linux-ld:arch-arm64-include-asm-kvm_mmu.h:(.hyp.text):undefined-reference-to-__kvm_nvhe_kvm_ncsnp_support | |-- aarch64-linux-ld:arch-arm64-kvm-hyp-nvhe-..-pgtable.c:(.hyp.text):undefined-reference-to-__kvm_nvhe_kvm_ncsnp_support | |-- arch-arm64-include-asm-kvm_mmu.h:(.hyp.text):dangerous-relocation:unsupported-relocation | |-- arch-arm64-include-asm-kvm_mmu.h:(.hyp.text):undefined-reference-to-__kvm_nvhe_kvm_ncsnp_support | |-- arch-arm64-kvm-hyp-nvhe-..-pgtable.c:(.hyp.text):dangerous-relocation:unsupported-relocation | |-- arch-arm64-kvm-hyp-nvhe-..-pgtable.c:(.hyp.text):undefined-reference-to-__kvm_nvhe_kvm_ncsnp_support | `-- drivers-dax-super.c:warning:Function-parameter-or-member-KABI_RESERVE(-not-described-in-dax_device |-- arm64-randconfig-r111-20240227 | |-- fs-userfaultfd.c:sparse:sparse:invalid-assignment: | |-- include-linux-userfaultfd_k.h:sparse:sparse:incorrect-type-in-argument-(different-base-types)-expected-restricted-uffd_flags_t-usertype-flags-got-unsigned-int-enum-mfill_atomic_mode-mode | |-- include-linux-userfaultfd_k.h:sparse:sparse:restricted-uffd_flags_t-degrades-to-integer | `-- mm-memblock.c:sparse:sparse:symbol-memblock_alloc_range_nid_flags-was-not-declared.-Should-it-be-static |-- loongarch-allmodconfig | |-- drivers-dax-super.c:warning:Function-parameter-or-member-KABI_RESERVE(-not-described-in-dax_device | |-- drivers-infiniband-hw-hns-hns_roce_hw_v2.c:warning:no-previous-prototype-for-hns_roce_hw_v2_get_dscp | `-- security-integrity-ima-ima_appraise.c:warning:no-previous-prototype-for-ima_get_hash_algo |-- loongarch-randconfig-001-20240227 | |-- kernel-sched-core.c:warning:format-llu-expects-argument-of-type-long-long-unsigned-int-but-argument-has-type-int | `-- kernel-sched-fair.c:error:hundred_thousand-undeclared-here-(not-in-a-function) |-- loongarch-randconfig-002-20240227 | |-- drivers-dax-super.c:warning:Function-parameter-or-member-KABI_RESERVE(-not-described-in-dax_device | `-- security-integrity-ima-ima_appraise.c:warning:no-previous-prototype-for-ima_get_hash_algo |-- x86_64-buildonly-randconfig-002-20240226 | `-- drivers-dax-super.c:warning:Function-parameter-or-member-KABI_RESERVE(-not-described-in-dax_device |-- x86_64-buildonly-randconfig-003-20240226 | `-- drivers-dax-super.c:warning:Function-parameter-or-member-KABI_RESERVE(-not-described-in-dax_device |-- x86_64-buildonly-randconfig-005-20240226 | `-- drivers-dax-super.c:warning:Function-parameter-or-member-KABI_RESERVE(-not-described-in-dax_device |-- x86_64-randconfig-006-20240226 | `-- drivers-dax-super.c:warning:Function-parameter-or-member-KABI_RESERVE(-not-described-in-dax_device |-- x86_64-randconfig-072-20240226 | `-- drivers-dax-super.c:warning:Function-parameter-or-member-KABI_RESERVE(-not-described-in-dax_device |-- x86_64-randconfig-073-20240226 | `-- drivers-dax-super.c:warning:Function-parameter-or-member-KABI_RESERVE(-not-described-in-dax_device |-- x86_64-randconfig-075-20240226 | `-- drivers-dax-super.c:warning:Function-parameter-or-member-KABI_RESERVE(-not-described-in-dax_device `-- x86_64-randconfig-161-20240227 `-- drivers-dax-super.c:warning:Function-parameter-or-member-KABI_RESERVE(-not-described-in-dax_device clang_recent_errors |-- arm64-allmodconfig | |-- drivers-dax-super.c:warning:Function-parameter-or-member-KABI_RESERVE(-not-described-in-dax_device | |-- drivers-gpu-drm-phytium-pe22_dc.c:warning:no-previous-prototype-for-function-pe22_dc_hw_config_pix_clock | |-- drivers-gpu-drm-phytium-pe22_dc.c:warning:no-previous-prototype-for-function-pe22_dc_hw_fb_format_check | |-- drivers-gpu-drm-phytium-pe22_dc.c:warning:no-previous-prototype-for-function-pe22_dc_hw_plane_get_cursor_format | |-- drivers-gpu-drm-phytium-pe22_dc.c:warning:no-previous-prototype-for-function-pe22_dc_hw_plane_get_primary_format | |-- drivers-gpu-drm-phytium-pe22_dc.c:warning:no-previous-prototype-for-function-pe22_dc_hw_reset | |-- drivers-gpu-drm-phytium-pe22_dc.c:warning:no-previous-prototype-for-function-pe22_dc_hw_update_cursor_hi_addr | |-- drivers-gpu-drm-phytium-pe22_dc.c:warning:no-previous-prototype-for-function-pe22_dc_hw_update_primary_hi_addr | |-- drivers-gpu-drm-phytium-pe22_dc.c:warning:no-previous-prototype-for-function-pe22_dc_hw_vram_init | |-- drivers-gpu-drm-phytium-pe22_dp.c:warning:no-previous-prototype-for-function-pe22_dp_hw_get_source_lane_count | |-- drivers-gpu-drm-phytium-pe22_dp.c:warning:no-previous-prototype-for-function-pe22_dp_hw_reset | |-- drivers-gpu-drm-phytium-pe22_dp.c:warning:no-previous-prototype-for-function-pe22_dp_hw_spread_is_enable | |-- drivers-gpu-drm-phytium-phytium_crtc.c:warning:no-previous-prototype-for-function-phytium_crtc_atomic_destroy_state | |-- drivers-gpu-drm-phytium-phytium_crtc.c:warning:no-previous-prototype-for-function-phytium_crtc_atomic_duplicate_state | |-- drivers-gpu-drm-phytium-phytium_debugfs.c:warning:no-previous-prototype-for-function-phytium_debugfs_connector_add | |-- drivers-gpu-drm-phytium-phytium_debugfs.c:warning:no-previous-prototype-for-function-phytium_debugfs_display_register | |-- drivers-gpu-drm-phytium-phytium_dp.c:warning:no-previous-prototype-for-function-phytium_dp_adjust_link_train_parameter | |-- drivers-gpu-drm-phytium-phytium_dp.c:warning:no-previous-prototype-for-function-phytium_dp_coding_8b10b_need_enable | |-- drivers-gpu-drm-phytium-phytium_dp.c:warning:no-previous-prototype-for-function-phytium_dp_dpcd_sink_dpms | |-- drivers-gpu-drm-phytium-phytium_dp.c:warning:no-previous-prototype-for-function-phytium_dp_encoder_destroy | |-- drivers-gpu-drm-phytium-phytium_dp.c:warning:no-previous-prototype-for-function-phytium_dp_fast_link_train | |-- drivers-gpu-drm-phytium-phytium_dp.c:warning:no-previous-prototype-for-function-phytium_dp_get_link_train_fallback_values | |-- drivers-gpu-drm-phytium-phytium_dp.c:warning:no-previous-prototype-for-function-phytium_dp_hpd_poll_handler | |-- drivers-gpu-drm-phytium-phytium_dp.c:warning:no-previous-prototype-for-function-phytium_dp_hw_config_video | |-- drivers-gpu-drm-phytium-phytium_dp.c:warning:no-previous-prototype-for-function-phytium_dp_hw_disable_input_source | |-- drivers-gpu-drm-phytium-phytium_dp.c:warning:no-previous-prototype-for-function-phytium_dp_hw_disable_output | |-- drivers-gpu-drm-phytium-phytium_dp.c:warning:no-previous-prototype-for-function-phytium_dp_hw_disable_video | |-- drivers-gpu-drm-phytium-phytium_dp.c:warning:no-previous-prototype-for-function-phytium_dp_hw_enable_audio | |-- drivers-gpu-drm-phytium-phytium_dp.c:warning:no-previous-prototype-for-function-phytium_dp_hw_enable_input_source | |-- drivers-gpu-drm-phytium-phytium_dp.c:warning:no-previous-prototype-for-function-phytium_dp_hw_enable_output | |-- drivers-gpu-drm-phytium-phytium_dp.c:warning:no-previous-prototype-for-function-phytium_dp_hw_enable_video | |-- drivers-gpu-drm-phytium-phytium_dp.c:warning:no-previous-prototype-for-function-phytium_dp_hw_hpd_irq_setup | |-- drivers-gpu-drm-phytium-phytium_dp.c:warning:no-previous-prototype-for-function-phytium_dp_hw_init | |-- drivers-gpu-drm-phytium-phytium_dp.c:warning:no-previous-prototype-for-function-phytium_dp_hw_output_is_enable | |-- drivers-gpu-drm-phytium-phytium_dp.c:warning:no-previous-prototype-for-function-phytium_dp_hw_video_is_enable | |-- drivers-gpu-drm-phytium-phytium_dp.c:warning:no-previous-prototype-for-function-phytium_dp_scrambled_need_enable | |-- drivers-gpu-drm-phytium-phytium_dp.c:warning:no-previous-prototype-for-function-phytium_dp_start_link_train | |-- drivers-gpu-drm-phytium-phytium_dp.c:warning:no-previous-prototype-for-function-phytium_encoder_mode_valid | |-- drivers-gpu-drm-phytium-phytium_dp.c:warning:no-previous-prototype-for-function-phytium_get_encoder_crtc_mask | |-- drivers-gpu-drm-phytium-phytium_fbdev.c:warning:no-previous-prototype-for-function-phytium_drm_fbdev_fini | |-- drivers-gpu-drm-phytium-phytium_fbdev.c:warning:no-previous-prototype-for-function-phytium_drm_fbdev_init | |-- drivers-gpu-drm-phytium-phytium_gem.c:warning:no-previous-prototype-for-function-phytium_dma_transfer | |-- drivers-gpu-drm-phytium-phytium_gem.c:warning:no-previous-prototype-for-function-phytium_gem_prime_vmap | |-- drivers-gpu-drm-phytium-phytium_gem.c:warning:no-previous-prototype-for-function-phytium_gem_prime_vunmap | |-- drivers-gpu-drm-phytium-phytium_gem.c:warning:no-previous-prototype-for-function-phytium_memory_pool_alloc | |-- drivers-gpu-drm-phytium-phytium_gem.c:warning:no-previous-prototype-for-function-phytium_memory_pool_free | |-- drivers-gpu-drm-phytium-phytium_panel.c:warning:no-previous-prototype-for-function-phytium_dp_panel_release_backlight_funcs | |-- drivers-gpu-drm-phytium-phytium_pci.c:warning:no-previous-prototype-for-function-phytium_pci_dma_fini | |-- drivers-gpu-drm-phytium-phytium_pci.c:warning:no-previous-prototype-for-function-phytium_pci_dma_init | |-- drivers-gpu-drm-phytium-phytium_pci.c:warning:no-previous-prototype-for-function-phytium_pci_vram_fini | |-- drivers-gpu-drm-phytium-phytium_pci.c:warning:no-previous-prototype-for-function-phytium_pci_vram_hw_init | |-- drivers-gpu-drm-phytium-phytium_pci.c:warning:no-previous-prototype-for-function-phytium_pci_vram_init | |-- drivers-gpu-drm-phytium-phytium_plane.c:warning:no-previous-prototype-for-function-phytium_plane_atomic_destroy_state | |-- drivers-gpu-drm-phytium-phytium_plane.c:warning:no-previous-prototype-for-function-phytium_plane_atomic_duplicate_state | |-- drivers-gpu-drm-phytium-phytium_plane.c:warning:no-previous-prototype-for-function-phytium_plane_atomic_set_property | |-- drivers-gpu-drm-phytium-phytium_plane.c:warning:no-previous-prototype-for-function-phytium_plane_destroy | |-- drivers-gpu-drm-phytium-phytium_platform.c:warning:no-previous-prototype-for-function-phytium_platform_carveout_mem_fini | |-- drivers-gpu-drm-phytium-phytium_platform.c:warning:no-previous-prototype-for-function-phytium_platform_carveout_mem_init | |-- drivers-gpu-drm-phytium-px210_dc.c:warning:no-previous-prototype-for-function-px210_dc_hw_clear_msi_irq | |-- drivers-gpu-drm-phytium-px210_dc.c:warning:no-previous-prototype-for-function-px210_dc_hw_config_pix_clock | |-- drivers-gpu-drm-phytium-px210_dc.c:warning:no-previous-prototype-for-function-px210_dc_hw_disable | |-- drivers-gpu-drm-phytium-px210_dc.c:warning:no-previous-prototype-for-function-px210_dc_hw_fb_format_check | |-- drivers-gpu-drm-phytium-px210_dc.c:warning:no-previous-prototype-for-function-px210_dc_hw_plane_get_cursor_format | |-- drivers-gpu-drm-phytium-px210_dc.c:warning:no-previous-prototype-for-function-px210_dc_hw_plane_get_primary_format | |-- drivers-gpu-drm-phytium-px210_dc.c:warning:no-previous-prototype-for-function-px210_dc_hw_update_dcreq | |-- drivers-gpu-drm-phytium-px210_dc.c:warning:no-previous-prototype-for-function-px210_dc_hw_update_primary_hi_addr | |-- drivers-gpu-drm-phytium-px210_dc.c:warning:no-previous-prototype-for-function-px210_dc_hw_vram_init | |-- drivers-gpu-drm-phytium-px210_dp.c:warning:no-previous-prototype-for-function-px210_dp_hw_get_source_lane_count | |-- drivers-gpu-drm-phytium-px210_dp.c:warning:no-previous-prototype-for-function-px210_dp_hw_reset | |-- drivers-gpu-drm-phytium-px210_dp.c:warning:no-previous-prototype-for-function-px210_dp_hw_spread_is_enable | |-- drivers-iommu-arm-arm-smmu-v3-arm-smmu-v3.c:warning:variable-pre_addr-is-uninitialized-when-used-here | |-- security-integrity-ima-ima_appraise.c:warning:no-previous-prototype-for-function-ima_get_hash_algo | `-- security-integrity-ima-ima_fs.c:warning:variable-ret-is-used-uninitialized-whenever-if-condition-is-true |-- arm64-randconfig-001-20240227 | `-- drivers-dax-super.c:warning:Function-parameter-or-member-KABI_RESERVE(-not-described-in-dax_device |-- x86_64-allyesconfig | |-- arch-x86-crypto-sm3-zhaoxin-gmi.c:warning:no-previous-prototype-for-function-sm3_generic_block_fn | |-- arch-x86-crypto-sm3-zhaoxin-gmi.c:warning:no-previous-prototype-for-function-zx_sm3_finup | |-- arch-x86-crypto-sm3-zhaoxin-gmi.c:warning:no-previous-prototype-for-function-zx_sm3_update | |-- arch-x86-crypto-sm4-zhaoxin-gmi.c:warning:no-previous-prototype-for-function-gmi_sm4_set_key | |-- drivers-dax-super.c:warning:Function-parameter-or-member-KABI_RESERVE(-not-described-in-dax_device | |-- drivers-pinctrl-zhaoxin-pinctrl-zhaoxin.c:warning:variable-base_offset-set-but-not-used | |-- drivers-pinctrl-zhaoxin-pinctrl-zhaoxin.c:warning:variable-pin-set-but-not-used | |-- drivers-pinctrl-zhaoxin-pinctrl-zhaoxin.c:warning:variable-value_back-set-but-not-used | |-- drivers-pinctrl-zhaoxin-pinctrl-zhaoxin.c:warning:variable-value_read-set-but-not-used | |-- security-integrity-ima-ima_appraise.c:warning:no-previous-prototype-for-function-ima_get_hash_algo | `-- security-integrity-ima-ima_fs.c:warning:variable-ret-is-used-uninitialized-whenever-if-condition-is-true |-- x86_64-buildonly-randconfig-004-20240226 | |-- drivers-dax-super.c:warning:Function-parameter-or-member-KABI_RESERVE(-not-described-in-dax_device | `-- ld.lld:error:undefined-symbol:lockdep_is_cpus_held |-- x86_64-randconfig-003-20240226 | `-- drivers-dax-super.c:warning:Function-parameter-or-member-KABI_RESERVE(-not-described-in-dax_device |-- x86_64-randconfig-004-20240226 | |-- drivers-dax-super.c:warning:Function-parameter-or-member-KABI_RESERVE(-not-described-in-dax_device | `-- ld.lld:error:undefined-symbol:lockdep_is_cpus_held |-- x86_64-randconfig-005-20240226 | `-- drivers-dax-super.c:warning:Function-parameter-or-member-KABI_RESERVE(-not-described-in-dax_device |-- x86_64-randconfig-011-20240226 | `-- drivers-dax-super.c:warning:Function-parameter-or-member-KABI_RESERVE(-not-described-in-dax_device |-- x86_64-randconfig-012-20240226 | `-- drivers-dax-super.c:warning:Function-parameter-or-member-KABI_RESERVE(-not-described-in-dax_device |-- x86_64-randconfig-013-20240226 | `-- drivers-dax-super.c:warning:Function-parameter-or-member-KABI_RESERVE(-not-described-in-dax_device |-- x86_64-randconfig-014-20240226 | `-- drivers-dax-super.c:warning:Function-parameter-or-member-KABI_RESERVE(-not-described-in-dax_device |-- x86_64-randconfig-015-20240226 | `-- drivers-dax-super.c:warning:Function-parameter-or-member-KABI_RESERVE(-not-described-in-dax_device |-- x86_64-randconfig-016-20240226 | `-- drivers-dax-super.c:warning:Function-parameter-or-member-KABI_RESERVE(-not-described-in-dax_device |-- x86_64-randconfig-071-20240226 | `-- drivers-dax-super.c:warning:Function-parameter-or-member-KABI_RESERVE(-not-described-in-dax_device |-- x86_64-randconfig-074-20240226 | `-- drivers-dax-super.c:warning:Function-parameter-or-member-KABI_RESERVE(-not-described-in-dax_device |-- x86_64-randconfig-076-20240226 | `-- drivers-dax-super.c:warning:Function-parameter-or-member-KABI_RESERVE(-not-described-in-dax_device |-- x86_64-randconfig-121-20240227 | `-- mm-memblock.c:sparse:sparse:symbol-memblock_alloc_range_nid_flags-was-not-declared.-Should-it-be-static |-- x86_64-randconfig-122-20240227 | |-- drivers-dax-super.c:warning:Function-parameter-or-member-KABI_RESERVE(-not-described-in-dax_device | `-- mm-memblock.c:sparse:sparse:symbol-memblock_alloc_range_nid_flags-was-not-declared.-Should-it-be-static |-- x86_64-randconfig-123-20240227 | |-- fs-userfaultfd.c:sparse:sparse:invalid-assignment: | |-- include-linux-userfaultfd_k.h:sparse:sparse:incorrect-type-in-argument-(different-base-types)-expected-restricted-uffd_flags_t-usertype-flags-got-unsigned-int-enum-mfill_atomic_mode-mode | |-- include-linux-userfaultfd_k.h:sparse:sparse:restricted-uffd_flags_t-degrades-to-integer | |-- ld.lld:error:undefined-symbol:lockdep_is_cpus_held | `-- mm-memblock.c:sparse:sparse:symbol-memblock_alloc_range_nid_flags-was-not-declared.-Should-it-be-static `-- x86_64-rhel-8.3-rust `-- drivers-dax-super.c:warning:Function-parameter-or-member-KABI_RESERVE(-not-described-in-dax_device elapsed time: 1189m configs tested: 40 configs skipped: 143 tested configs: arm64 allmodconfig clang arm64 allnoconfig gcc arm64 defconfig gcc arm64 randconfig-001-20240227 clang arm64 randconfig-002-20240227 gcc arm64 randconfig-003-20240227 gcc arm64 randconfig-004-20240227 gcc loongarch allmodconfig gcc loongarch allnoconfig gcc loongarch defconfig gcc loongarch randconfig-001-20240227 gcc loongarch randconfig-002-20240227 gcc x86_64 allnoconfig clang x86_64 allyesconfig clang x86_64 buildonly-randconfig-001-20240226 clang x86_64 buildonly-randconfig-002-20240226 gcc x86_64 buildonly-randconfig-003-20240226 gcc x86_64 buildonly-randconfig-004-20240226 clang x86_64 buildonly-randconfig-005-20240226 gcc x86_64 buildonly-randconfig-006-20240226 gcc x86_64 defconfig gcc x86_64 randconfig-001-20240226 gcc x86_64 randconfig-002-20240226 gcc x86_64 randconfig-003-20240226 clang x86_64 randconfig-004-20240226 clang x86_64 randconfig-005-20240226 clang x86_64 randconfig-006-20240226 gcc x86_64 randconfig-011-20240226 clang x86_64 randconfig-012-20240226 clang x86_64 randconfig-013-20240226 clang x86_64 randconfig-014-20240226 clang x86_64 randconfig-015-20240226 clang x86_64 randconfig-016-20240226 clang x86_64 randconfig-071-20240226 clang x86_64 randconfig-072-20240226 gcc x86_64 randconfig-073-20240226 gcc x86_64 randconfig-074-20240226 clang x86_64 randconfig-075-20240226 gcc x86_64 randconfig-076-20240226 clang x86_64 rhel-8.3-rust clang -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki

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[openeuler:OLK-6.6 3384/3397] drivers/infiniband/hw/hns/hns_roce_hw_v2.c:4835:5: warning: no previous prototype for 'hns_roce_hw_v2_get_dscp'
by kernel test robot 27 Feb '24

27 Feb '24

tree: https://gitee.com/openeuler/kernel.git OLK-6.6 head: 038c00b1896898752288ca81d9cac182afc6d6ab commit: d0acb51bbfac2c66a43ca337314ba8611701b6c8 [3384/3397] RDMA/hns: Support DSCP of userspace config: loongarch-allmodconfig (https://download.01.org/0day-ci/archive/20240227/202402271032.NbR2jDIl-lkp@…) compiler: loongarch64-linux-gcc (GCC) 13.2.0 reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20240227/202402271032.NbR2jDIl-lkp@…) If you fix the issue in a separate patch/commit (i.e. not just a new version of the same patch/commit), kindly add following tags | Reported-by: kernel test robot <lkp(a)intel.com> | Closes: https://lore.kernel.org/oe-kbuild-all/202402271032.NbR2jDIl-lkp@intel.com/ All warnings (new ones prefixed by >>): >> drivers/infiniband/hw/hns/hns_roce_hw_v2.c:4835:5: warning: no previous prototype for 'hns_roce_hw_v2_get_dscp' [-Wmissing-prototypes] 4835 | int hns_roce_hw_v2_get_dscp(struct hns_roce_dev *hr_dev, u8 dscp, | ^~~~~~~~~~~~~~~~~~~~~~~ vim +/hns_roce_hw_v2_get_dscp +4835 drivers/infiniband/hw/hns/hns_roce_hw_v2.c 4834 > 4835 int hns_roce_hw_v2_get_dscp(struct hns_roce_dev *hr_dev, u8 dscp, 4836 u8 *tc_mode, u8 *priority) 4837 { 4838 struct hns_roce_v2_priv *priv = hr_dev->priv; 4839 struct hnae3_handle *handle = priv->handle; 4840 const struct hnae3_ae_ops *ops = handle->ae_algo->ops; 4841 4842 if (!ops->get_dscp_prio) 4843 return -EOPNOTSUPP; 4844 4845 return ops->get_dscp_prio(handle, dscp, tc_mode, priority); 4846 } 4847 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki

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[PATCH OLK-6.6 0/2] coresight: trbe: Enable ACPI based devices
by Junhao He 27 Feb '24

27 Feb '24

This series enables detection of ACPI based TRBE devices via a stand alone purpose built representative platform device. But as a pre-requisite this changes coresight_platform_data structure assignment for the TRBE device. Anshuman Khandual (2): coresight: trbe: Add a representative coresight_platform_data for TRBE coresight: trbe: Enable ACPI based TRBE devices drivers/hwtracing/coresight/coresight-trbe.c | 23 ++++++++++++++++++-- drivers/hwtracing/coresight/coresight-trbe.h | 2 ++ 2 files changed, 23 insertions(+), 2 deletions(-) -- 2.33.0

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[PATCH OLK-5.10] serial: 8250: omap: Don't skip resource freeing if pm_runtime_resume_and_get() failed
by GUO Zihua 27 Feb '24

27 Feb '24

From: Uwe Kleine-König <u.kleine-koenig(a)pengutronix.de> stable inclusion from stable-v5.10.209 commit bc57f3ef8a9eb0180606696f586a6dcfaa175ed0 category: bugfix bugzilla: https://gitee.com/src-openeuler/kernel/issues/I93EDC CVE: CVE-2023-52457 Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id… -------------------------------- [ Upstream commit ad90d0358bd3b4554f243a425168fc7cebe7d04e ] Returning an error code from .remove() makes the driver core emit the little helpful error message: remove callback returned a non-zero value. This will be ignored. and then remove the device anyhow. So all resources that were not freed are leaked in this case. Skipping serial8250_unregister_port() has the potential to keep enough of the UART around to trigger a use-after-free. So replace the error return (and with it the little helpful error message) by a more useful error message and continue to cleanup. Fixes: e3f0c638f428 ("serial: 8250: omap: Fix unpaired pm_runtime_put_sync() in omap8250_remove()") Signed-off-by: Uwe Kleine-König <u.kleine-koenig(a)pengutronix.de> Reviewed-by: Tony Lindgren <tony(a)atomide.com> Link: https://lore.kernel.org/r/20231110152927.70601-2-u.kleine-koenig@pengutroni… Signed-off-by: Greg Kroah-Hartman <gregkh(a)linuxfoundation.org> Signed-off-by: Sasha Levin <sashal(a)kernel.org> Conflicts: drivers/tty/serial/8250/8250_omap.c Signed-off-by: GUO Zihua <guozihua(a)huawei.com> --- drivers/tty/serial/8250/8250_omap.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/tty/serial/8250/8250_omap.c b/drivers/tty/serial/8250/8250_omap.c index e26ac3f42e05..1967bf314e7c 100644 --- a/drivers/tty/serial/8250/8250_omap.c +++ b/drivers/tty/serial/8250/8250_omap.c @@ -1485,7 +1485,7 @@ static int omap8250_remove(struct platform_device *pdev) err = pm_runtime_resume_and_get(&pdev->dev); if (err) - return err; + dev_err(&pdev->dev, "Failed to resume hardware\n"); pm_runtime_dont_use_autosuspend(&pdev->dev); pm_runtime_put_sync(&pdev->dev); -- 2.34.1

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[PATCH OLK-6.6 00/14] LoongArch: fix some known issue and update defconfig
by Hongchen Zhang 27 Feb '24

27 Feb '24

Bibo Mao (1): LoongArch: Implement constant timer shutdown interface Chong Qiao (1): irqchip/loongson-pch-pic: 7a1000 int_clear reg must use 64bit write. Hongchen Zhang (3): LoongArch: fix compile error caused by arch_trigger_cpumask_backtrace usb: xhci: add XHCI_NO_SOFT_RETRY quirk for EJ188 net: stmmac: fix potential double free of dma descriptor resources Huacai Chen (1): drm/radeon: Workaround radeon driver bug for Loongson Jianmin Lv (1): LoongArch: Remove generic irq migration Tianli Xiong (1): irqchip/loongson-liointc: Set different isr for differnt core Yingkun Meng (1): LoongArch: defconfig: Enable a large number of configurations Youling Tang (4): LoongArch: kdump: Add memory reservation for old kernel LoongArch: kexec: Add compatibility with old interfaces LoongArch: Fix kdump failure on v40 interface specification LoongArch: kdump: Add high memory reservation zhangtianyang (1): LoongArch: Adapted SECTION_SIZE_BITS with page size arch/loongarch/Kconfig | 1 - arch/loongarch/configs/loongson3_defconfig | 1577 +++++++++++++++-- arch/loongarch/include/asm/irq.h | 3 +- arch/loongarch/include/asm/sparsemem.h | 2 +- arch/loongarch/kernel/irq.c | 36 + arch/loongarch/kernel/machine_kexec.c | 45 +- arch/loongarch/kernel/process.c | 3 +- arch/loongarch/kernel/setup.c | 94 +- arch/loongarch/kernel/smp.c | 3 +- arch/loongarch/kernel/time.c | 23 +- drivers/gpu/drm/radeon/cik.c | 3 + drivers/gpu/drm/radeon/evergreen.c | 3 + drivers/gpu/drm/radeon/r600.c | 3 + drivers/gpu/drm/radeon/si.c | 3 + drivers/irqchip/irq-loongson-liointc.c | 4 +- drivers/irqchip/irq-loongson-pch-pic.c | 16 +- .../net/ethernet/stmicro/stmmac/stmmac_main.c | 11 + drivers/usb/host/xhci-pci.c | 6 + kernel/irq/Kconfig | 4 +- 19 files changed, 1639 insertions(+), 201 deletions(-) -- 2.33.0

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[PATCH OLK-5.10] tls: fix race between tx work scheduling and socket close
by Zhengchao Shao 27 Feb '24

27 Feb '24

From: Jakub Kicinski <kuba(a)kernel.org> mainline inclusion from mainline-v6.8-rc5 commit e01e3934a1b2d122919f73bc6ddbe1cdafc4bbdb category: bugfix bugzilla: https://gitee.com/src-openeuler/kernel/issues/I92REM CVE: CVE-2024-26585 Reference: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?… -------------------------------- Similarly to previous commit, the submitting thread (recvmsg/sendmsg) may exit as soon as the async crypto handler calls complete(). Reorder scheduling the work before calling complete(). This seems more logical in the first place, as it's the inverse order of what the submitting thread will do. Reported-by: valis <sec(a)valis.email> Fixes: a42055e8d2c3 ("net/tls: Add support for async encryption of records for performance") Signed-off-by: Jakub Kicinski <kuba(a)kernel.org> Reviewed-by: Simon Horman <horms(a)kernel.org> Reviewed-by: Sabrina Dubroca <sd(a)queasysnail.net> Signed-off-by: David S. Miller <davem(a)davemloft.net> Conflicts: net/tls/tls_sw.c Signed-off-by: Zhengchao Shao <shaozhengchao(a)huawei.com> --- net/tls/tls_sw.c | 16 ++++++---------- 1 file changed, 6 insertions(+), 10 deletions(-) diff --git a/net/tls/tls_sw.c b/net/tls/tls_sw.c index 84e1f2af1a83..e2f4cc5c85bb 100644 --- a/net/tls/tls_sw.c +++ b/net/tls/tls_sw.c @@ -443,7 +443,6 @@ static void tls_encrypt_done(struct crypto_async_request *req, int err) struct scatterlist *sge; struct sk_msg *msg_en; struct tls_rec *rec; - bool ready = false; int pending; rec = container_of(aead_req, struct tls_rec, aead_req); @@ -475,8 +474,12 @@ static void tls_encrypt_done(struct crypto_async_request *req, int err) /* If received record is at head of tx_list, schedule tx */ first_rec = list_first_entry(&ctx->tx_list, struct tls_rec, list); - if (rec == first_rec) - ready = true; + if (rec == first_rec) { + /* Schedule the transmission */ + if (!test_and_set_bit(BIT_TX_SCHEDULED, + &ctx->tx_bitmask)) + schedule_delayed_work(&ctx->tx_work.work, 1); + } } spin_lock_bh(&ctx->encrypt_compl_lock); @@ -485,13 +488,6 @@ static void tls_encrypt_done(struct crypto_async_request *req, int err) if (!pending && ctx->async_notify) complete(&ctx->async_wait.completion); spin_unlock_bh(&ctx->encrypt_compl_lock); - - if (!ready) - return; - - /* Schedule the transmission */ - if (!test_and_set_bit(BIT_TX_SCHEDULED, &ctx->tx_bitmask)) - schedule_delayed_work(&ctx->tx_work.work, 1); } static int tls_do_encryption(struct sock *sk, -- 2.34.1

2 1

[PATCH openEuler-1.0-LTS V2 0/2] Remove WQ_FLAG_BOOKMARK flag
by Zizhi Wo 26 Feb '24

26 Feb '24

Fix softlockup by removing the wait_queue flag: WQ_FLAG_BOOKMARK. Matthew Wilcox (Oracle) (2): filemap: remove use of wait bookmarks sched: remove wait bookmarks include/linux/wait.h | 3 --- kernel/sched/wait.c | 57 ++++++-------------------------------------- mm/filemap.c | 21 +--------------- 3 files changed, 8 insertions(+), 73 deletions(-) -- 2.39.2

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