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[openeuler:OLK-6.6 2167/2167] block/blk-io-hierarchy/iodump.c:561:7: warning: no previous prototype for '__bio_stage_hierarchy_start'
by kernel test robot 25 Apr '25

25 Apr '25

tree: https://gitee.com/openeuler/kernel.git OLK-6.6 head: 2f6f8a0f52903845ede4602b637dd1323aef3592 commit: 67e0c6872f92397d82e9a938623105573f590fc3 [2167/2167] blk-io-hierarchy: support hierarchy stats for bio lifetime config: loongarch-allyesconfig (https://download.01.org/0day-ci/archive/20250425/202504250828.wJjuSU89-lkp@…) compiler: loongarch64-linux-gcc (GCC) 14.2.0 reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20250425/202504250828.wJjuSU89-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/202504250828.wJjuSU89-lkp@intel.com/ All warnings (new ones prefixed by >>): >> block/blk-io-hierarchy/iodump.c:561:7: warning: no previous prototype for '__bio_stage_hierarchy_start' [-Wmissing-prototypes] 561 | void *__bio_stage_hierarchy_start(struct bio_stage_dump_data *bstage_ddata, | ^~~~~~~~~~~~~~~~~~~~~~~~~~~ vim +/__bio_stage_hierarchy_start +561 block/blk-io-hierarchy/iodump.c 1bf8f90fb90c60 Yu Kuai 2024-11-27 560 1bf8f90fb90c60 Yu Kuai 2024-11-27 @561 void *__bio_stage_hierarchy_start(struct bio_stage_dump_data *bstage_ddata, 1bf8f90fb90c60 Yu Kuai 2024-11-27 562 loff_t *pos) 1bf8f90fb90c60 Yu Kuai 2024-11-27 563 { 1bf8f90fb90c60 Yu Kuai 2024-11-27 564 struct pos_data *pdata = &bstage_ddata->pdata; 1bf8f90fb90c60 Yu Kuai 2024-11-27 565 struct rq_dump_data *rq_ddata = &bstage_ddata->rq_ddata; 1bf8f90fb90c60 Yu Kuai 2024-11-27 566 1bf8f90fb90c60 Yu Kuai 2024-11-27 567 retry: 1bf8f90fb90c60 Yu Kuai 2024-11-27 568 if (stage_is_bio(pdata->stage)) { 1bf8f90fb90c60 Yu Kuai 2024-11-27 569 struct list_head *list; 1bf8f90fb90c60 Yu Kuai 2024-11-27 570 struct bio_dump_data *bio_ddata = 1bf8f90fb90c60 Yu Kuai 2024-11-27 571 get_bio_stage_ddata(rq_ddata->q, pdata->stage); 1bf8f90fb90c60 Yu Kuai 2024-11-27 572 1bf8f90fb90c60 Yu Kuai 2024-11-27 573 if (!bio_ddata) { 1bf8f90fb90c60 Yu Kuai 2024-11-27 574 bio_stage_start_next_stage(bstage_ddata, pos); 1bf8f90fb90c60 Yu Kuai 2024-11-27 575 goto retry; 1bf8f90fb90c60 Yu Kuai 2024-11-27 576 } 1bf8f90fb90c60 Yu Kuai 2024-11-27 577 1bf8f90fb90c60 Yu Kuai 2024-11-27 578 spin_lock_irq(&bio_ddata->lock); 1bf8f90fb90c60 Yu Kuai 2024-11-27 579 list = seq_list_start(&bio_ddata->head, pdata->count); 1bf8f90fb90c60 Yu Kuai 2024-11-27 580 if (list) 1bf8f90fb90c60 Yu Kuai 2024-11-27 581 return list; 1bf8f90fb90c60 Yu Kuai 2024-11-27 582 1bf8f90fb90c60 Yu Kuai 2024-11-27 583 spin_unlock_irq(&bio_ddata->lock); 1bf8f90fb90c60 Yu Kuai 2024-11-27 584 bio_stage_start_next_stage(bstage_ddata, pos); 1bf8f90fb90c60 Yu Kuai 2024-11-27 585 goto retry; 1bf8f90fb90c60 Yu Kuai 2024-11-27 586 } 1bf8f90fb90c60 Yu Kuai 2024-11-27 587 1bf8f90fb90c60 Yu Kuai 2024-11-27 588 if (pdata->stage == STAGE_BIO && 1bf8f90fb90c60 Yu Kuai 2024-11-27 589 __rq_hierarchy_start(rq_ddata, pdata->count)) 1bf8f90fb90c60 Yu Kuai 2024-11-27 590 return bstage_ddata; 1bf8f90fb90c60 Yu Kuai 2024-11-27 591 1bf8f90fb90c60 Yu Kuai 2024-11-27 592 return NULL; 1bf8f90fb90c60 Yu Kuai 2024-11-27 593 } 1bf8f90fb90c60 Yu Kuai 2024-11-27 594 :::::: The code at line 561 was first introduced by commit :::::: 1bf8f90fb90c600d9f372e6be4ef251cc8905f04 block-io-hierarchy: core hierarchy stats and iodump implementation :::::: TO: Yu Kuai <yukuai3(a)huawei.com> :::::: CC: Yu Kuai <yukuai3(a)huawei.com> -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki

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[openeuler:openEuler-1.0-LTS 1593/1593] block/genhd.c:525: warning: Function parameter or member 'devt' not described in 'blk_invalidate_devt'
by kernel test robot 25 Apr '25

25 Apr '25

tree: https://gitee.com/openeuler/kernel.git openEuler-1.0-LTS head: 08111f03f1ec65598372cfe9bf64f366d575671e commit: 56b5af39e17ef421c545d43ca4d07995c30c93da [1593/1593] block: fix use-after-free on gendisk config: arm64-defconfig (https://download.01.org/0day-ci/archive/20250425/202504250827.FCNrED1Z-lkp@…) compiler: aarch64-linux-gcc (GCC) 14.2.0 reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20250425/202504250827.FCNrED1Z-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/202504250827.FCNrED1Z-lkp@intel.com/ All warnings (new ones prefixed by >>): >> block/genhd.c:525: warning: Function parameter or member 'devt' not described in 'blk_invalidate_devt' vim +525 block/genhd.c 520 521 /** 522 * We invalidate devt by assigning NULL pointer for devt in idr. 523 */ 524 void blk_invalidate_devt(dev_t devt) > 525 { 526 if (MAJOR(devt) == BLOCK_EXT_MAJOR) { 527 spin_lock_bh(&ext_devt_lock); 528 idr_replace(&ext_devt_idr, NULL, blk_mangle_minor(MINOR(devt))); 529 spin_unlock_bh(&ext_devt_lock); 530 } 531 } 532 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki

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[openeuler:openEuler-1.0-LTS 1593/1593] block/blk-merge.c:688:16: warning: no previous prototype for 'blk_try_req_merge'
by kernel test robot 25 Apr '25

25 Apr '25

Hi Jianchao, FYI, the error/warning still remains. tree: https://gitee.com/openeuler/kernel.git openEuler-1.0-LTS head: 08111f03f1ec65598372cfe9bf64f366d575671e commit: 5f100bc6aabbe30e55cf20af8e163bb6dba3a3aa [1593/1593] block: fix the DISCARD request merge config: arm64-defconfig (https://download.01.org/0day-ci/archive/20250425/202504250657.SBZLGq3K-lkp@…) compiler: aarch64-linux-gcc (GCC) 14.2.0 reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20250425/202504250657.SBZLGq3K-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/202504250657.SBZLGq3K-lkp@intel.com/ All warnings (new ones prefixed by >>): >> block/blk-merge.c:688:16: warning: no previous prototype for 'blk_try_req_merge' [-Wmissing-prototypes] 688 | enum elv_merge blk_try_req_merge(struct request *req, struct request *next) | ^~~~~~~~~~~~~~~~~ vim +/blk_try_req_merge +688 block/blk-merge.c 687 > 688 enum elv_merge blk_try_req_merge(struct request *req, struct request *next) 689 { 690 if (blk_discard_mergable(req)) 691 return ELEVATOR_DISCARD_MERGE; 692 else if (blk_rq_pos(req) + blk_rq_sectors(req) == blk_rq_pos(next)) 693 return ELEVATOR_BACK_MERGE; 694 695 return ELEVATOR_NO_MERGE; 696 } 697 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki

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[openeuler:openEuler-1.0-LTS 1592/1592] sas_expander.c:undefined reference to `ata_dev_same_device'
by kernel test robot 24 Apr '25

24 Apr '25

Hi Jason, FYI, the error/warning still remains. tree: https://gitee.com/openeuler/kernel.git openEuler-1.0-LTS head: 08111f03f1ec65598372cfe9bf64f366d575671e commit: d856ec500c97835c591ffacc005f514509f1a931 [1592/1592] scsi: libsas: check if the same sata device when flutter config: x86_64-buildonly-randconfig-003-20250424 (https://download.01.org/0day-ci/archive/20250425/202504250048.uf9ktecm-lkp@…) compiler: gcc-12 (Debian 12.2.0-14) 12.2.0 reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20250425/202504250048.uf9ktecm-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/202504250048.uf9ktecm-lkp@intel.com/ All errors (new ones prefixed by >>): ld: warning: arch/x86/lib/csum-copy_64.o: missing .note.GNU-stack section implies executable stack ld: NOTE: This behaviour is deprecated and will be removed in a future version of the linker ld: warning: arch/x86/lib/csum-copy_64.o: missing .note.GNU-stack section implies executable stack ld: NOTE: This behaviour is deprecated and will be removed in a future version of the linker ld: warning: .tmp_vmlinux1 has a LOAD segment with RWX permissions ld: drivers/scsi/libsas/sas_expander.o: in function `sas_rediscover_dev': >> sas_expander.c:(.text.unlikely+0x38c): undefined reference to `ata_dev_same_device' -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki

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[openeuler:openEuler-1.0-LTS 1592/1592] ld.lld: error: undefined symbol: init_net
by kernel test robot 24 Apr '25

24 Apr '25

Hi Zhao, FYI, the error/warning still remains. tree: https://gitee.com/openeuler/kernel.git openEuler-1.0-LTS head: 08111f03f1ec65598372cfe9bf64f366d575671e commit: 6636f4434a9c5c9c645694db206188ee5a6626dd [1592/1592] ext4: report error to userspace by netlink config: x86_64-buildonly-randconfig-002-20250424 (https://download.01.org/0day-ci/archive/20250424/202504241856.ApFHkRye-lkp@…) compiler: clang version 20.1.2 (https://github.com/llvm/llvm-project 58df0ef89dd64126512e4ee27b4ac3fd8ddf6247) reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20250424/202504241856.ApFHkRye-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/202504241856.ApFHkRye-lkp@intel.com/ All errors (new ones prefixed by >>): >> ld.lld: error: undefined symbol: init_net >>> referenced by super.c >>> fs/ext4/super.o:(ext4_init_fs) in archive built-in.a -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki

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[PATCH OLK-6.6 0/1] compile error: implicit declaration of
by Jinqian Yang 24 Apr '25

24 Apr '25

Jinqian Yang (1): kvm: hisi_virt: Fix compilation error due to missing ACPI configuration arch/arm64/kvm/vgic/vgic-init.c | 10 ++++++++++ 1 file changed, 10 insertions(+) -- 2.33.0

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[PATCH OLK-6.6 0/6] arm64/mpam: Create l2 cache monitors
by Zeng Heng 24 Apr '25

24 Apr '25

James Morse (2): arm64: mpam: Add cpu_pm notifier to restore MPAM sysregs arm64: mpam: Restore the expected MPAM sysregs on cpuhp Zeng Heng (4): arm64/mpam: Create l2 cache monitors fs/resctrl: Add l2 mount option to enable L2 msc arm64/mpam: Refuse cpu offline when L2 msc is enabled arm64/mpam: Refuse to enter powerdown state after L2 msc updated arch/arm64/kernel/cpufeature.c | 6 +++ arch/arm64/kernel/mpam.c | 41 +++++++++++++++ arch/x86/include/asm/resctrl.h | 10 ++++ drivers/platform/mpam/mpam_devices.c | 6 ++- drivers/platform/mpam/mpam_internal.h | 2 + drivers/platform/mpam/mpam_resctrl.c | 76 ++++++++++++++++++++++++--- fs/resctrl/ctrlmondata.c | 6 +++ fs/resctrl/internal.h | 2 +- fs/resctrl/rdtgroup.c | 16 ++++++ include/linux/arm_mpam.h | 18 +++++++ include/linux/resctrl.h | 4 ++ include/linux/resctrl_types.h | 10 ---- 12 files changed, 179 insertions(+), 18 deletions(-) -- 2.25.1

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[openeuler:openEuler-1.0-LTS 1592/1592] mm/mem_reliable.c:41:22: warning: 'zero' defined but not used
by kernel test robot 24 Apr '25

24 Apr '25

Hi Chen, FYI, the error/warning still remains. tree: https://gitee.com/openeuler/kernel.git openEuler-1.0-LTS head: 08111f03f1ec65598372cfe9bf64f366d575671e commit: 6943b93b464351cbc35aa002e86bac48e08b1c3f [1592/1592] mm: add support for limiting the usage of reliable memory in pagecache config: arm64-randconfig-003-20250424 (https://download.01.org/0day-ci/archive/20250424/202504241725.jmSsMrko-lkp@…) compiler: aarch64-linux-gcc (GCC) 12.3.0 reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20250424/202504241725.jmSsMrko-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/202504241725.jmSsMrko-lkp@intel.com/ All warnings (new ones prefixed by >>): mm/mem_reliable.c:42:22: warning: 'reliable_pagecache_max_bytes' defined but not used [-Wunused-variable] 42 | static unsigned long reliable_pagecache_max_bytes = ULONG_MAX; | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~ >> mm/mem_reliable.c:41:22: warning: 'zero' defined but not used [-Wunused-variable] 41 | static unsigned long zero; | ^~~~ vim +/zero +41 mm/mem_reliable.c 40 > 41 static unsigned long zero; > 42 static unsigned long reliable_pagecache_max_bytes = ULONG_MAX; 43 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki

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[PATCH OLK-6.6] media: vimc: skip .s_stream() for stopped entities
by Zheng Xinyu 24 Apr '25

24 Apr '25

From: Nikita Zhandarovich <n.zhandarovich(a)fintech.ru> mainline inclusion from mainline-v6.15-rc1 commit 36cef585e2a31e4ddf33a004b0584a7a572246de category: bugfix bugzilla: https://gitee.com/src-openeuler/kernel/issues/IC1QQ2 CVE: CVE-2025-22028 Reference: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?… -------------------------------- Syzbot reported [1] a warning prompted by a check in call_s_stream() that checks whether .s_stream() operation is warranted for unstarted or stopped subdevs. Add a simple fix in vimc_streamer_pipeline_terminate() ensuring that entities skip a call to .s_stream() unless they have been previously properly started. [1] Syzbot report: ------------[ cut here ]------------ WARNING: CPU: 0 PID: 5933 at drivers/media/v4l2-core/v4l2-subdev.c:460 call_s_stream+0x2df/0x350 drivers/media/v4l2-core/v4l2-subdev.c:460 Modules linked in: CPU: 0 UID: 0 PID: 5933 Comm: syz-executor330 Not tainted 6.13.0-rc2-syzkaller-00362-g2d8308bf5b67 #0 ... Call Trace: <TASK> vimc_streamer_pipeline_terminate+0x218/0x320 drivers/media/test-drivers/vimc/vimc-streamer.c:62 vimc_streamer_pipeline_init drivers/media/test-drivers/vimc/vimc-streamer.c:101 [inline] vimc_streamer_s_stream+0x650/0x9a0 drivers/media/test-drivers/vimc/vimc-streamer.c:203 vimc_capture_start_streaming+0xa1/0x130 drivers/media/test-drivers/vimc/vimc-capture.c:256 vb2_start_streaming+0x15f/0x5a0 drivers/media/common/videobuf2/videobuf2-core.c:1789 vb2_core_streamon+0x2a7/0x450 drivers/media/common/videobuf2/videobuf2-core.c:2348 vb2_streamon drivers/media/common/videobuf2/videobuf2-v4l2.c:875 [inline] vb2_ioctl_streamon+0xf4/0x170 drivers/media/common/videobuf2/videobuf2-v4l2.c:1118 __video_do_ioctl+0xaf0/0xf00 drivers/media/v4l2-core/v4l2-ioctl.c:3122 video_usercopy+0x4d2/0x1620 drivers/media/v4l2-core/v4l2-ioctl.c:3463 v4l2_ioctl+0x1ba/0x250 drivers/media/v4l2-core/v4l2-dev.c:366 vfs_ioctl fs/ioctl.c:51 [inline] __do_sys_ioctl fs/ioctl.c:906 [inline] __se_sys_ioctl fs/ioctl.c:892 [inline] __x64_sys_ioctl+0x190/0x200 fs/ioctl.c:892 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xcd/0x250 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f2b85c01b19 ... Reported-by: syzbot+5bcd7c809d365e14c4df(a)syzkaller.appspotmail.com Closes: https://syzkaller.appspot.com/bug?extid=5bcd7c809d365e14c4df Fixes: adc589d2a208 ("media: vimc: Add vimc-streamer for stream control") Cc: stable(a)vger.kernel.org Signed-off-by: Nikita Zhandarovich <n.zhandarovich(a)fintech.ru> Signed-off-by: Hans Verkuil <hverkuil(a)xs4all.nl> --- drivers/media/test-drivers/vimc/vimc-streamer.c | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/drivers/media/test-drivers/vimc/vimc-streamer.c b/drivers/media/test-drivers/vimc/vimc-streamer.c index 807551a5143b..15d863f97cbf 100644 --- a/drivers/media/test-drivers/vimc/vimc-streamer.c +++ b/drivers/media/test-drivers/vimc/vimc-streamer.c @@ -59,6 +59,12 @@ static void vimc_streamer_pipeline_terminate(struct vimc_stream *stream) continue; sd = media_entity_to_v4l2_subdev(ved->ent); + /* + * Do not call .s_stream() to stop an already + * stopped/unstarted subdev. + */ + if (!v4l2_subdev_is_streaming(sd)) + continue; v4l2_subdev_call(sd, video, s_stream, 0); } } -- 2.34.1

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[PATCH OLK-6.6 0/6] arm64/mpam: Create l2 cache monitors
by Zeng Heng 24 Apr '25

24 Apr '25

James Morse (2): arm64: mpam: Add cpu_pm notifier to restore MPAM sysregs arm64: mpam: Restore the expected MPAM sysregs on cpuhp Zeng Heng (4): arm64/mpam: Create l2 cache monitors fs/resctrl: Add l2 mount option to enable L2 msc arm64/mpam: Refuse cpu offline when L2 msc is enabled arm64/mpam: Refuse to enter powerdown state after L2 msc updated arch/arm64/kernel/cpufeature.c | 6 +++ arch/arm64/kernel/mpam.c | 41 +++++++++++++++ drivers/platform/mpam/mpam_devices.c | 6 ++- drivers/platform/mpam/mpam_internal.h | 2 + drivers/platform/mpam/mpam_resctrl.c | 76 ++++++++++++++++++++++++--- fs/resctrl/ctrlmondata.c | 6 +++ fs/resctrl/internal.h | 2 +- fs/resctrl/rdtgroup.c | 16 ++++++ include/linux/arm_mpam.h | 2 + include/linux/resctrl.h | 4 ++ include/linux/resctrl_types.h | 2 + 11 files changed, 155 insertions(+), 8 deletions(-) -- 2.25.1

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