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[PATCH OLK-6.6 0/3] Backport mainline patches to avoid crash caused by rsize being 0
by Wang Zhaolong 17 Apr '25

17 Apr '25

Wang Zhaolong (3): smb:client: smb: client: Add reverse mapping from tcon to superblocks smb: client: Store original IO parameters and prevent zero IO sizes smb: client: Update IO sizes after reconnection fs/smb/client/cifs_fs_sb.h | 1 + fs/smb/client/cifsglob.h | 3 ++- fs/smb/client/connect.c | 15 +++++++++++++++ fs/smb/client/fs_context.c | 2 ++ fs/smb/client/fs_context.h | 3 +++ fs/smb/client/misc.c | 2 ++ fs/smb/client/smb1ops.c | 6 +++--- fs/smb/client/smb2ops.c | 27 +++++++++++++++++++-------- fs/smb/client/smb2pdu.c | 24 ++++++++++++++++++++++-- fs/smb/common/smb2pdu.h | 3 +++ 10 files changed, 72 insertions(+), 14 deletions(-) -- 2.39.2

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[PATCH openEuler-1.0-LTS 0/4] Backport mainline patchies to avoid crash caused by rsize being 0
by Wang Zhaolong 17 Apr '25

17 Apr '25

Wang Zhaolong (4): Revert "cifs: Prevent NULL pointer dereference caused by cifs_sb->rsize is 0" smb:client: smb: client: Add reverse mapping from tcon to superblocks smb: client: Store original IO parameters and prevent zero IO sizes smb: client: Update IO sizes after reconnection fs/cifs/cifs_fs_sb.h | 3 +++ fs/cifs/cifsglob.h | 12 +++++++++--- fs/cifs/connect.c | 27 ++++++++++++++++++++------- fs/cifs/misc.c | 2 ++ fs/cifs/smb1ops.c | 10 +++++----- fs/cifs/smb2ops.c | 23 +++++++++++++++++------ fs/cifs/smb2pdu.c | 24 ++++++++++++++++++++++-- 7 files changed, 78 insertions(+), 23 deletions(-) -- 2.39.2

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会议时间提醒 // 答复: [Dev] openEuler Kernel SIG双周例会
by liaotao (C) 17 Apr '25

17 Apr '25

本周五4月18日下午14:00 openEuler kernel sig双周例会，可继续在会议纪要看板申报议题：会议纪要：https://etherpad.openeuler.org/p/Kernel-meetings 会议链接：https://meeting.huaweicloud.com:36443/#/j/987901819 -----原始约会----- 发件人: openEuler conference <public(a)openeuler.org> 发送时间: 2025年4月10日 16:53 收件人: ,dev@openeuler.org,kernel-discuss@openeuler.org,kernel@openeuler.org 主题: [Dev] openEuler Kernel SIG双周例会时间: 2025年4月18日星期五 14:00-15:30(UTC+08:00) 北京，重庆，香港特别行政区，乌鲁木齐。地点: 您好！ Kernel 邀请您参加 2025-04-18 14:00 召开的WeLink会议(自动录制) 会议主题：openEuler Kernel SIG双周例会会议内容：由于4.11日全天openEuler ODD 2025线下活动，原定4.11日下午开始的Kernel SIG双周例会推迟至4.18日下午。议题详见会议看板，并可继续申报。会议链接：https://meeting.huaweicloud.com:36443/#/j/987901819 会议纪要：https://etherpad.openeuler.org/p/Kernel-meetings 更多资讯尽在：https://www.openeuler.org/zh/ Hello! Kernel invites you to attend the WeLink conference(auto recording) will be held at 2025-04-18 14:00, The subject of the conference is openEuler Kernel SIG双周例会 Summary: 由于4.11日全天openEuler ODD 2025线下活动，原定4.11日下午开始的Kernel SIG双周例会推迟至4.18日下午。议题详见会议看板，并可继续申报。 You can join the meeting at https://meeting.huaweicloud.com:36443/#/j/987901819 Add topics at https://etherpad.openeuler.org/p/Kernel-meetings More information: https://www.openeuler.org/en/

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[openeuler:OLK-5.10 2862/2862] fs/cachefiles/rdwr.o: warning: objtool: cachefiles_prepare_read()+0x218: unreachable instruction
by kernel test robot 17 Apr '25

17 Apr '25

tree: https://gitee.com/openeuler/kernel.git OLK-5.10 head: 2affea8965688b8231cf977864ba7539320d5db8 commit: 33ba25cc4869bab81ad31784e7bbb25e5da2a2ad [2862/2862] anolis: fscache,cachefiles: add fscache_prepare_read() helper config: x86_64-buildonly-randconfig-005-20250415 (https://download.01.org/0day-ci/archive/20250417/202504171410.vxZz7s2a-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/20250417/202504171410.vxZz7s2a-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/202504171410.vxZz7s2a-lkp@intel.com/ All warnings (new ones prefixed by >>): >> fs/cachefiles/rdwr.o: warning: objtool: cachefiles_prepare_read()+0x218: unreachable instruction -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki

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[PATCH OLK-6.6 0/3] soc cache: Add support for HiSilicon L3 cache
by Yushan Wang 17 Apr '25

17 Apr '25

driver inclusion category: feature bugzilla: https://gitee.com/openeuler/kernel/issues/IC15TR ---------------------------------------------------------------------- This series adds support for HiSilicon SoC cache lockdown and cache maintenance operations. Cache lockdown feature prevents cache entries from being evicted from L3 cache. It can be enabled by calling mmap function to the file (`/dev/hisi_soc_cache_mgmt`). This feature is implemented in the driver hisi_soc_l3c. Cache maintenance feature, following Arm64's CHI spec[1], enables users to raise certain transactions to the memory residing in the cache. This can be achieved by calling ioctl function to the same file as above. This feature is implemented in the driver hisi_soc_hha. L3 cache and L3 cache PMU share the same memory resource, which makes one fails to probe while another is on board. Since both devices rely on distinct information exported by ACPI, their probing functions should be unrelated. Workaround the resource conflict check by replacing devm_ioremap_resource() to devm_ioremap() instead. [1] https://developer.arm.com/documentation/ihi0050/latest/ Yushan Wang (3): soc cache: Add framework driver for HiSilicon SoC cache soc cache: Support cache maintenance for HiSilicon SoC Hydra Home Agent soc cache: Modify default config to compile HiSilicon SoC cache driver arch/arm64/configs/openeuler_defconfig | 5 + drivers/soc/hisilicon/Kconfig | 22 + drivers/soc/hisilicon/Makefile | 3 + .../soc/hisilicon/hisi_soc_cache_framework.c | 378 ++++++++++++++++++ .../soc/hisilicon/hisi_soc_cache_framework.h | 77 ++++ drivers/soc/hisilicon/hisi_soc_hha.c | 189 +++++++++ .../uapi/misc/hisi_soc_cache/hisi_soc_cache.h | 35 ++ 7 files changed, 709 insertions(+) create mode 100644 drivers/soc/hisilicon/hisi_soc_cache_framework.c create mode 100644 drivers/soc/hisilicon/hisi_soc_cache_framework.h create mode 100644 drivers/soc/hisilicon/hisi_soc_hha.c create mode 100644 include/uapi/misc/hisi_soc_cache/hisi_soc_cache.h -- 2.33.0

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[PATCH OLK-5.10] ftrace: Avoid potential division by zero in function_stat_show()
by Liu Chuang 17 Apr '25

17 Apr '25

From: Nikolay Kuratov <kniv(a)yandex-team.ru> stable inclusion from stable-v5.10.235 commit ca381f60a3bb7cfaa618d73ca411610bd7fc3149 category: bugfix bugzilla: https://gitee.com/src-openeuler/kernel/issues/IBY43C Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id… -------------------------------- commit a1a7eb89ca0b89dc1c326eeee2596f263291aca3 upstream. Check whether denominator expression x * (x - 1) * 1000 mod {2^32, 2^64} produce zero and skip stddev computation in that case. For now don't care about rec->counter * rec->counter overflow because rec->time * rec->time overflow will likely happen earlier. Cc: stable(a)vger.kernel.org Cc: Wen Yang <wenyang(a)linux.alibaba.com> Cc: Mark Rutland <mark.rutland(a)arm.com> Cc: Mathieu Desnoyers <mathieu.desnoyers(a)efficios.com> Link: https://lore.kernel.org/20250206090156.1561783-1-kniv@yandex-team.ru Fixes: e31f7939c1c27 ("ftrace: Avoid potential division by zero in function profiler") Signed-off-by: Nikolay Kuratov <kniv(a)yandex-team.ru> Signed-off-by: Steven Rostedt (Google) <rostedt(a)goodmis.org> Signed-off-by: Greg Kroah-Hartman <gregkh(a)linuxfoundation.org> Signed-off-by: Wang Hai <wanghai38(a)huawei.com> --- kernel/trace/ftrace.c | 27 ++++++++++++--------------- 1 file changed, 12 insertions(+), 15 deletions(-) diff --git a/kernel/trace/ftrace.c b/kernel/trace/ftrace.c index 923d78cc130c..095ba8ab36cf 100644 --- a/kernel/trace/ftrace.c +++ b/kernel/trace/ftrace.c @@ -510,6 +510,7 @@ static int function_stat_show(struct seq_file *m, void *v) static struct trace_seq s; unsigned long long avg; unsigned long long stddev; + unsigned long long stddev_denom; #endif mutex_lock(&ftrace_profile_lock); @@ -531,23 +532,19 @@ static int function_stat_show(struct seq_file *m, void *v) #ifdef CONFIG_FUNCTION_GRAPH_TRACER seq_puts(m, " "); - /* Sample standard deviation (s^2) */ - if (rec->counter <= 1) - stddev = 0; - else { - /* - * Apply Welford's method: - * s^2 = 1 / (n * (n-1)) * (n * \Sum (x_i)^2 - (\Sum x_i)^2) - */ + /* + * Variance formula: + * s^2 = 1 / (n * (n-1)) * (n * \Sum (x_i)^2 - (\Sum x_i)^2) + * Maybe Welford's method is better here? + * Divide only by 1000 for ns^2 -> us^2 conversion. + * trace_print_graph_duration will divide by 1000 again. + */ + stddev = 0; + stddev_denom = rec->counter * (rec->counter - 1) * 1000; + if (stddev_denom) { stddev = rec->counter * rec->time_squared - rec->time * rec->time; - - /* - * Divide only 1000 for ns^2 -> us^2 conversion. - * trace_print_graph_duration will divide 1000 again. - */ - stddev = div64_ul(stddev, - rec->counter * (rec->counter - 1) * 1000); + stddev = div64_ul(stddev, stddev_denom); } trace_seq_init(&s); -- 2.34.1

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[PATCH OLK-6.6 0/5] drm: LoongArch: fix rx550/gfx6/gfx7/gfx8 error
by Hongchen Zhang 17 Apr '25

17 Apr '25

Tianrui Zhao (3): drm/amdgpu: Fix pcie order dislocation drm/amdgpu: make duplicated EOP packet for GFX6 have real content drm/amdgpu: Fix RX550 pcie order dislocation. lvjianmin (2): drm/radeon: repeat the same EOP packet for EOP workaround on CIK drm/amdgpu: make duplicated EOP packet for GFX7/8 have real content drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c | 5 + drivers/gpu/drm/amd/amdgpu/amdgpu_ih.c | 159 ++++++++++++++++++++++++ drivers/gpu/drm/amd/amdgpu/amdgpu_ih.h | 6 + drivers/gpu/drm/amd/amdgpu/amdgpu_irq.c | 4 + drivers/gpu/drm/amd/amdgpu/amdgpu_irq.h | 3 + drivers/gpu/drm/amd/amdgpu/gfx_v6_0.c | 19 +++ drivers/gpu/drm/amd/amdgpu/gfx_v7_0.c | 13 +- drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c | 13 +- drivers/gpu/drm/radeon/cik.c | 9 +- 9 files changed, 216 insertions(+), 15 deletions(-) -- 2.33.0

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[PATCH OLK-6.6 0/2] soc cache: Add support for HiSilicon L3 cache
by Yushan Wang 17 Apr '25

17 Apr '25

driver inclusion category: feature bugzilla: https://gitee.com/openeuler/kernel/issues/IC15TR ---------------------------------------------------------------------- This series adds support for HiSilicon SoC cache lockdown and cache maintenance operations. Cache lockdown feature prevents cache entries from being evicted from L3 cache. It can be enabled by calling mmap function to the file (`/dev/hisi_soc_cache_mgmt`). This feature is implemented in the driver hisi_soc_l3c. Cache maintenance feature, following Arm64's CHI spec[1], enables users to raise certain transactions to the memory residing in the cache. This can be achieved by calling ioctl function to the same file as above. This feature is implemented in the driver hisi_soc_hha. L3 cache and L3 cache PMU share the same memory resource, which makes one fails to probe while another is on board. Since both devices rely on distinct information exported by ACPI, their probing functions should be unrelated. Workaround the resource conflict check by replacing devm_ioremap_resource() to devm_ioremap() instead. [1] https://developer.arm.com/documentation/ihi0050/latest/ Yushan Wang (2): soc cache: Add framework driver for HiSilicon SoC cache soc cache: Support cache maintenance for HiSilicon SoC Hydra Home Agent drivers/soc/hisilicon/Kconfig | 22 + drivers/soc/hisilicon/Makefile | 3 + .../soc/hisilicon/hisi_soc_cache_framework.c | 381 ++++++++++++++++++ .../soc/hisilicon/hisi_soc_cache_framework.h | 77 ++++ drivers/soc/hisilicon/hisi_soc_hha.c | 188 +++++++++ .../uapi/misc/hisi_soc_cache/hisi_soc_cache.h | 35 ++ 6 files changed, 706 insertions(+) create mode 100644 drivers/soc/hisilicon/hisi_soc_cache_framework.c create mode 100644 drivers/soc/hisilicon/hisi_soc_cache_framework.h create mode 100644 drivers/soc/hisilicon/hisi_soc_hha.c create mode 100644 include/uapi/misc/hisi_soc_cache/hisi_soc_cache.h -- 2.33.0

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[openeuler:OLK-6.6 2130/2130] arch/arm64/kvm/mmu.c:1665:21: warning: unused variable 'iss2'
by kernel test robot 17 Apr '25

17 Apr '25

tree: https://gitee.com/openeuler/kernel.git OLK-6.6 head: 58353f394bfe86212d5089bc9c1c235ffc761e2c commit: 8d2e1e3b26a99872309a1c2afa3f0f35f1102137 [2130/2130] arm64/config: add config to control whether enable HDBSS feature config: arm64-randconfig-001-20250417 (https://download.01.org/0day-ci/archive/20250417/202504170921.RaPjZtnT-lkp@…) compiler: aarch64-linux-gcc (GCC) 7.5.0 reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20250417/202504170921.RaPjZtnT-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/202504170921.RaPjZtnT-lkp@intel.com/ All warnings (new ones prefixed by >>): arch/arm64/kvm/mmu.c: In function 'kvm_handle_guest_abort': >> arch/arm64/kvm/mmu.c:1665:21: warning: unused variable 'iss2' [-Wunused-variable] unsigned long hva, iss2; ^~~~ -- arch/arm64/kvm/reset.c: In function 'kvm_arm_vcpu_destroy': >> arch/arm64/kvm/reset.c:165:15: warning: unused variable 'hdbss_pg' [-Wunused-variable] struct page *hdbss_pg; ^~~~~~~~ vim +/iss2 +1665 arch/arm64/kvm/mmu.c aeda9130c38e2e arch/arm/kvm/mmu.c Marc Zyngier 2015-03-12 1648 94f8e6418d3915 arch/arm/kvm/mmu.c Christoffer Dall 2013-01-20 1649 /** 94f8e6418d3915 arch/arm/kvm/mmu.c Christoffer Dall 2013-01-20 1650 * kvm_handle_guest_abort - handles all 2nd stage aborts 94f8e6418d3915 arch/arm/kvm/mmu.c Christoffer Dall 2013-01-20 1651 * @vcpu: the VCPU pointer 94f8e6418d3915 arch/arm/kvm/mmu.c Christoffer Dall 2013-01-20 1652 * 94f8e6418d3915 arch/arm/kvm/mmu.c Christoffer Dall 2013-01-20 1653 * Any abort that gets to the host is almost guaranteed to be caused by a 94f8e6418d3915 arch/arm/kvm/mmu.c Christoffer Dall 2013-01-20 1654 * missing second stage translation table entry, which can mean that either the 94f8e6418d3915 arch/arm/kvm/mmu.c Christoffer Dall 2013-01-20 1655 * guest simply needs more memory and we must allocate an appropriate page or it 94f8e6418d3915 arch/arm/kvm/mmu.c Christoffer Dall 2013-01-20 1656 * can mean that the guest tried to access I/O memory, which is emulated by user 94f8e6418d3915 arch/arm/kvm/mmu.c Christoffer Dall 2013-01-20 1657 * space. The distinction is based on the IPA causing the fault and whether this 94f8e6418d3915 arch/arm/kvm/mmu.c Christoffer Dall 2013-01-20 1658 * memory region has been registered as standard RAM by user space. 94f8e6418d3915 arch/arm/kvm/mmu.c Christoffer Dall 2013-01-20 1659 */ 74cc7e0c35c1e4 arch/arm64/kvm/mmu.c Tianjia Zhang 2020-06-23 1660 int kvm_handle_guest_abort(struct kvm_vcpu *vcpu) 342cd0ab0e6ca3 arch/arm/kvm/mmu.c Christoffer Dall 2013-01-20 1661 { 94f8e6418d3915 arch/arm/kvm/mmu.c Christoffer Dall 2013-01-20 1662 unsigned long fault_status; 94f8e6418d3915 arch/arm/kvm/mmu.c Christoffer Dall 2013-01-20 1663 phys_addr_t fault_ipa; 94f8e6418d3915 arch/arm/kvm/mmu.c Christoffer Dall 2013-01-20 1664 struct kvm_memory_slot *memslot; 6d60015590c3f5 arch/arm64/kvm/mmu.c eillon 2025-04-02 @1665 unsigned long hva, iss2; 98047888bb9fd5 arch/arm/kvm/mmu.c Christoffer Dall 2014-08-19 1666 bool is_iabt, write_fault, writable; 94f8e6418d3915 arch/arm/kvm/mmu.c Christoffer Dall 2013-01-20 1667 gfn_t gfn; 94f8e6418d3915 arch/arm/kvm/mmu.c Christoffer Dall 2013-01-20 1668 int ret, idx; 94f8e6418d3915 arch/arm/kvm/mmu.c Christoffer Dall 2013-01-20 1669 621f48e40ee9b0 virt/kvm/arm/mmu.c Tyler Baicar 2017-06-21 1670 fault_status = kvm_vcpu_trap_get_fault_type(vcpu); 621f48e40ee9b0 virt/kvm/arm/mmu.c Tyler Baicar 2017-06-21 1671 621f48e40ee9b0 virt/kvm/arm/mmu.c Tyler Baicar 2017-06-21 1672 fault_ipa = kvm_vcpu_get_fault_ipa(vcpu); bb428921b777a5 virt/kvm/arm/mmu.c James Morse 2017-07-18 1673 is_iabt = kvm_vcpu_trap_is_iabt(vcpu); 621f48e40ee9b0 virt/kvm/arm/mmu.c Tyler Baicar 2017-06-21 1674 :::::: The code at line 1665 was first introduced by commit :::::: 6d60015590c3f56b0188b2409cfb3ad9e05ded00 arm64/kvm: support to handle the HDBSSF event :::::: TO: eillon <yezhenyu2(a)huawei.com> :::::: CC: Zhenyu Ye <yezhenyu2(a)huawei.com> -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki

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[openeuler:OLK-5.10 2862/2862] fs/erofs/fscache.o: warning: objtool: erofs_fscache_release_page()+0x55: unreachable instruction
by kernel test robot 17 Apr '25

17 Apr '25

tree: https://gitee.com/openeuler/kernel.git OLK-5.10 head: 2affea8965688b8231cf977864ba7539320d5db8 commit: f18ca5e7c9d96c676424c3a36c121697e477ac20 [2862/2862] erofs: implement fscache-based metadata read config: x86_64-buildonly-randconfig-005-20250415 (https://download.01.org/0day-ci/archive/20250417/202504170830.iw6x6XXN-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/20250417/202504170830.iw6x6XXN-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/202504170830.iw6x6XXN-lkp@intel.com/ All warnings (new ones prefixed by >>): >> fs/erofs/fscache.o: warning: objtool: erofs_fscache_release_page()+0x55: unreachable instruction -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki

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[openeuler:OLK-6.6 2130/2130] kernel/sched/psi.c:1262:6: warning: 'psi_account_irqtime' defined but not used
by kernel test robot 17 Apr '25

17 Apr '25

Hi Lu, First bad commit (maybe != root cause): tree: https://gitee.com/openeuler/kernel.git OLK-6.6 head: 58353f394bfe86212d5089bc9c1c235ffc761e2c commit: 654944510822988390470cbc5b6f914c19dd9b88 [2130/2130] sched/psi: add cpu fine grained stall tracking in pressure.stat config: arm64-randconfig-001-20250417 (https://download.01.org/0day-ci/archive/20250417/202504170110.nEONpqWt-lkp@…) compiler: aarch64-linux-gcc (GCC) 7.5.0 reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20250417/202504170110.nEONpqWt-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/202504170110.nEONpqWt-lkp@intel.com/ All warnings (new ones prefixed by >>): ^ include/linux/init.h:343:32: note: in definition of macro '__setup_param' = { __setup_str_##unique_id, fn, early } ^~ kernel/sched/autogroup.c:227:1: note: in expansion of macro '__setup' __setup("noautogroup", setup_autogroup); ^~~~~~~ kernel/sched/build_utility.c:110:0: error: expected declaration or statement at end of input #endif In file included from kernel/sched/build_utility.c:97:0: kernel/sched/build_utility.c: At top level: kernel/sched/psi.c:178:13: warning: 'psi_avgs_work' used but never defined static void psi_avgs_work(struct work_struct *work); ^~~~~~~~~~~~~ kernel/sched/psi.c:180:13: warning: 'poll_timer_fn' used but never defined static void poll_timer_fn(struct timer_list *t); ^~~~~~~~~~~~~ In file included from kernel/sched/build_utility.c:109:0: kernel/sched/autogroup.c:285:5: warning: 'autogroup_path' defined but not used [-Wunused-function] int autogroup_path(struct task_group *tg, char *buf, int buflen) ^~~~~~~~~~~~~~ kernel/sched/autogroup.c:269:6: warning: 'proc_sched_autogroup_show_task' defined but not used [-Wunused-function] void proc_sched_autogroup_show_task(struct task_struct *p, struct seq_file *m) ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ kernel/sched/autogroup.c:231:5: warning: 'proc_sched_autogroup_set_nice' defined but not used [-Wunused-function] int proc_sched_autogroup_set_nice(struct task_struct *p, int nice) ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~ kernel/sched/autogroup.c:216:6: warning: 'sched_autogroup_exit' defined but not used [-Wunused-function] void sched_autogroup_exit(struct signal_struct *sig) ^~~~~~~~~~~~~~~~~~~~ kernel/sched/autogroup.c:211:6: warning: 'sched_autogroup_fork' defined but not used [-Wunused-function] void sched_autogroup_fork(struct signal_struct *sig) ^~~~~~~~~~~~~~~~~~~~ kernel/sched/autogroup.c:147:6: warning: 'sched_autogroup_exit_task' defined but not used [-Wunused-function] void sched_autogroup_exit_task(struct task_struct *p) ^~~~~~~~~~~~~~~~~~~~~~~~~ kernel/sched/autogroup.c:129:6: warning: 'task_wants_autogroup' defined but not used [-Wunused-function] bool task_wants_autogroup(struct task_struct *p, struct task_group *tg) ^~~~~~~~~~~~~~~~~~~~ kernel/sched/autogroup.c:42:6: warning: 'autogroup_free' defined but not used [-Wunused-function] void autogroup_free(struct task_group *tg) ^~~~~~~~~~~~~~ kernel/sched/autogroup.c:33:13: warning: 'autogroup_init' defined but not used [-Wunused-function] void __init autogroup_init(struct task_struct *init_task) ^~~~~~~~~~~~~~ In file included from include/linux/compat.h:34:0, from arch/arm64/include/asm/elf.h:9, from include/linux/elf.h:6, from include/linux/module.h:19, from include/linux/device/driver.h:21, from include/linux/device.h:32, from include/linux/node.h:18, from include/linux/cpu.h:17, from include/linux/cpufreq.h:12, from kernel/sched/build_utility.c:22: arch/arm64/include/asm/syscall_wrapper.h:62:14: warning: '__se_sys_membarrier' defined but not used [-Wunused-function] static long __se_sys##name(__MAP(x,__SC_LONG,__VA_ARGS__)) \ ^ include/linux/syscalls.h:230:2: note: in expansion of macro '__SYSCALL_DEFINEx' __SYSCALL_DEFINEx(x, sname, __VA_ARGS__) ^~~~~~~~~~~~~~~~~ include/linux/syscalls.h:221:36: note: in expansion of macro 'SYSCALL_DEFINEx' #define SYSCALL_DEFINE3(name, ...) SYSCALL_DEFINEx(3, _##name, __VA_ARGS__) ^~~~~~~~~~~~~~~ kernel/sched/membarrier.c:614:1: note: in expansion of macro 'SYSCALL_DEFINE3' SYSCALL_DEFINE3(membarrier, int, cmd, unsigned int, flags, int, cpu_id) ^~~~~~~~~~~~~~~ arch/arm64/include/asm/syscall_wrapper.h:58:18: warning: '__arm64_sys_membarrier' defined but not used [-Wunused-function] asmlinkage long __arm64_sys##name(const struct pt_regs *regs) \ ^ include/linux/syscalls.h:230:2: note: in expansion of macro '__SYSCALL_DEFINEx' __SYSCALL_DEFINEx(x, sname, __VA_ARGS__) ^~~~~~~~~~~~~~~~~ include/linux/syscalls.h:221:36: note: in expansion of macro 'SYSCALL_DEFINEx' #define SYSCALL_DEFINE3(name, ...) SYSCALL_DEFINEx(3, _##name, __VA_ARGS__) ^~~~~~~~~~~~~~~ kernel/sched/membarrier.c:614:1: note: in expansion of macro 'SYSCALL_DEFINE3' SYSCALL_DEFINE3(membarrier, int, cmd, unsigned int, flags, int, cpu_id) ^~~~~~~~~~~~~~~ In file included from kernel/sched/build_utility.c:101:0: kernel/sched/membarrier.c:233:6: warning: 'membarrier_update_current_mm' defined but not used [-Wunused-function] void membarrier_update_current_mm(struct mm_struct *next_mm) ^~~~~~~~~~~~~~~~~~~~~~~~~~~~ kernel/sched/membarrier.c:217:6: warning: 'membarrier_exec_mmap' defined but not used [-Wunused-function] void membarrier_exec_mmap(struct mm_struct *mm) ^~~~~~~~~~~~~~~~~~~~ In file included from kernel/sched/build_utility.c:97:0: kernel/sched/psi.c:1471:6: warning: 'psi_cgroup_restart' defined but not used [-Wunused-function] void psi_cgroup_restart(struct psi_group *group) ^~~~~~~~~~~~~~~~~~ kernel/sched/psi.c:1416:6: warning: 'cgroup_move_task' defined but not used [-Wunused-function] void cgroup_move_task(struct task_struct *task, struct css_set *to) ^~~~~~~~~~~~~~~~ kernel/sched/psi.c:1392:6: warning: 'psi_cgroup_free' defined but not used [-Wunused-function] void psi_cgroup_free(struct cgroup *cgroup) ^~~~~~~~~~~~~~~ kernel/sched/psi.c:1373:5: warning: 'psi_cgroup_alloc' defined but not used [-Wunused-function] int psi_cgroup_alloc(struct cgroup *cgroup) ^~~~~~~~~~~~~~~~ >> kernel/sched/psi.c:1262:6: warning: 'psi_account_irqtime' defined but not used [-Wunused-function] void psi_account_irqtime(struct task_struct *task, u32 delta) ^~~~~~~~~~~~~~~~~~~ kernel/sched/psi.c:1168:6: warning: 'psi_task_switch' defined but not used [-Wunused-function] void psi_task_switch(struct task_struct *prev, struct task_struct *next, ^~~~~~~~~~~~~~~ kernel/sched/psi.c:949:13: warning: 'poll_timer_fn' defined but not used [-Wunused-function] static void poll_timer_fn(struct timer_list *t) ^~~~~~~~~~~~~ cc1: some warnings being treated as errors vim +/psi_account_irqtime +1262 kernel/sched/psi.c eb414681d5a07d Johannes Weiner 2018-10-26 1260 52b1364ba0b105 Chengming Zhou 2022-08-26 1261 #ifdef CONFIG_IRQ_TIME_ACCOUNTING 52b1364ba0b105 Chengming Zhou 2022-08-26 @1262 void psi_account_irqtime(struct task_struct *task, u32 delta) 52b1364ba0b105 Chengming Zhou 2022-08-26 1263 { 52b1364ba0b105 Chengming Zhou 2022-08-26 1264 int cpu = task_cpu(task); 52b1364ba0b105 Chengming Zhou 2022-08-26 1265 struct psi_group *group; 52b1364ba0b105 Chengming Zhou 2022-08-26 1266 struct psi_group_cpu *groupc; 52b1364ba0b105 Chengming Zhou 2022-08-26 1267 u64 now; 52b1364ba0b105 Chengming Zhou 2022-08-26 1268 c4069ab39e78c5 Haifeng Xu 2024-01-04 1269 if (static_branch_likely(&psi_disabled)) c4069ab39e78c5 Haifeng Xu 2024-01-04 1270 return; c4069ab39e78c5 Haifeng Xu 2024-01-04 1271 52b1364ba0b105 Chengming Zhou 2022-08-26 1272 if (!task->pid) 52b1364ba0b105 Chengming Zhou 2022-08-26 1273 return; 52b1364ba0b105 Chengming Zhou 2022-08-26 1274 52b1364ba0b105 Chengming Zhou 2022-08-26 1275 now = cpu_clock(cpu); 52b1364ba0b105 Chengming Zhou 2022-08-26 1276 dc86aba751e286 Chengming Zhou 2022-08-26 1277 group = task_psi_group(task); dc86aba751e286 Chengming Zhou 2022-08-26 1278 do { 34f26a15611afb Chengming Zhou 2022-09-07 1279 if (!group->enabled) 34f26a15611afb Chengming Zhou 2022-09-07 1280 continue; 34f26a15611afb Chengming Zhou 2022-09-07 1281 52b1364ba0b105 Chengming Zhou 2022-08-26 1282 groupc = per_cpu_ptr(group->pcpu, cpu); 52b1364ba0b105 Chengming Zhou 2022-08-26 1283 52b1364ba0b105 Chengming Zhou 2022-08-26 1284 write_seqcount_begin(&groupc->seq); 52b1364ba0b105 Chengming Zhou 2022-08-26 1285 52b1364ba0b105 Chengming Zhou 2022-08-26 1286 record_times(groupc, now); 52b1364ba0b105 Chengming Zhou 2022-08-26 1287 groupc->times[PSI_IRQ_FULL] += delta; 52b1364ba0b105 Chengming Zhou 2022-08-26 1288 52b1364ba0b105 Chengming Zhou 2022-08-26 1289 write_seqcount_end(&groupc->seq); 52b1364ba0b105 Chengming Zhou 2022-08-26 1290 65457b74aa9437 Domenico Cerasuolo 2023-03-30 1291 if (group->rtpoll_states & (1 << PSI_IRQ_FULL)) 65457b74aa9437 Domenico Cerasuolo 2023-03-30 1292 psi_schedule_rtpoll_work(group, 1, false); dc86aba751e286 Chengming Zhou 2022-08-26 1293 } while ((group = group->parent)); 52b1364ba0b105 Chengming Zhou 2022-08-26 1294 } 52b1364ba0b105 Chengming Zhou 2022-08-26 1295 #endif 52b1364ba0b105 Chengming Zhou 2022-08-26 1296 eb414681d5a07d Johannes Weiner 2018-10-26 1297 /** eb414681d5a07d Johannes Weiner 2018-10-26 1298 * psi_memstall_enter - mark the beginning of a memory stall section a65983d90bfb5e Lu Jialin 2024-01-04 1299 * @flags: flags to handle nested sections. When the memory pressure a65983d90bfb5e Lu Jialin 2024-01-04 1300 * is stalled in pressure_stat, the flags will be the pressure source, a65983d90bfb5e Lu Jialin 2024-01-04 1301 * Otherwise, the init flags should be zero. eb414681d5a07d Johannes Weiner 2018-10-26 1302 * eb414681d5a07d Johannes Weiner 2018-10-26 1303 * Marks the calling task as being stalled due to a lack of memory, eb414681d5a07d Johannes Weiner 2018-10-26 1304 * such as waiting for a refault or performing reclaim. eb414681d5a07d Johannes Weiner 2018-10-26 1305 */ eb414681d5a07d Johannes Weiner 2018-10-26 1306 void psi_memstall_enter(unsigned long *flags) eb414681d5a07d Johannes Weiner 2018-10-26 1307 { eb414681d5a07d Johannes Weiner 2018-10-26 1308 struct rq_flags rf; eb414681d5a07d Johannes Weiner 2018-10-26 1309 struct rq *rq; a65983d90bfb5e Lu Jialin 2024-01-04 1310 #ifdef CONFIG_PSI_FINE_GRAINED a65983d90bfb5e Lu Jialin 2024-01-04 1311 unsigned long stat_flags = *flags; a65983d90bfb5e Lu Jialin 2024-01-04 1312 #endif eb414681d5a07d Johannes Weiner 2018-10-26 1313 e0c274472d5d27 Johannes Weiner 2018-11-30 1314 if (static_branch_likely(&psi_disabled)) eb414681d5a07d Johannes Weiner 2018-10-26 1315 return; eb414681d5a07d Johannes Weiner 2018-10-26 1316 1066d1b6974e09 Yafang Shao 2020-03-16 1317 *flags = current->in_memstall; eb414681d5a07d Johannes Weiner 2018-10-26 1318 if (*flags) eb414681d5a07d Johannes Weiner 2018-10-26 1319 return; 3dfdd2f9d0dbe7 Lu Jialin 2024-01-02 1320 3dfdd2f9d0dbe7 Lu Jialin 2024-01-02 1321 trace_psi_memstall_enter(_RET_IP_); eb414681d5a07d Johannes Weiner 2018-10-26 1322 /* 1066d1b6974e09 Yafang Shao 2020-03-16 1323 * in_memstall setting & accounting needs to be atomic wrt eb414681d5a07d Johannes Weiner 2018-10-26 1324 * changes to the task's scheduling state, otherwise we can eb414681d5a07d Johannes Weiner 2018-10-26 1325 * race with CPU migration. eb414681d5a07d Johannes Weiner 2018-10-26 1326 */ eb414681d5a07d Johannes Weiner 2018-10-26 1327 rq = this_rq_lock_irq(&rf); eb414681d5a07d Johannes Weiner 2018-10-26 1328 1066d1b6974e09 Yafang Shao 2020-03-16 1329 current->in_memstall = 1; a65983d90bfb5e Lu Jialin 2024-01-04 1330 #ifdef CONFIG_PSI_FINE_GRAINED a65983d90bfb5e Lu Jialin 2024-01-04 1331 if (stat_flags) a65983d90bfb5e Lu Jialin 2024-01-04 1332 current->memstall_type = stat_flags; a65983d90bfb5e Lu Jialin 2024-01-04 1333 #endif cb0e52b7748737 Brian Chen 2021-11-10 1334 psi_task_change(current, 0, TSK_MEMSTALL | TSK_MEMSTALL_RUNNING); eb414681d5a07d Johannes Weiner 2018-10-26 1335 eb414681d5a07d Johannes Weiner 2018-10-26 1336 rq_unlock_irq(rq, &rf); eb414681d5a07d Johannes Weiner 2018-10-26 1337 } 527eb453bbfe65 Christoph Hellwig 2022-09-15 1338 EXPORT_SYMBOL_GPL(psi_memstall_enter); eb414681d5a07d Johannes Weiner 2018-10-26 1339 eb414681d5a07d Johannes Weiner 2018-10-26 1340 /** eb414681d5a07d Johannes Weiner 2018-10-26 1341 * psi_memstall_leave - mark the end of an memory stall section eb414681d5a07d Johannes Weiner 2018-10-26 1342 * @flags: flags to handle nested memdelay sections eb414681d5a07d Johannes Weiner 2018-10-26 1343 * eb414681d5a07d Johannes Weiner 2018-10-26 1344 * Marks the calling task as no longer stalled due to lack of memory. eb414681d5a07d Johannes Weiner 2018-10-26 1345 */ eb414681d5a07d Johannes Weiner 2018-10-26 1346 void psi_memstall_leave(unsigned long *flags) eb414681d5a07d Johannes Weiner 2018-10-26 1347 { eb414681d5a07d Johannes Weiner 2018-10-26 1348 struct rq_flags rf; eb414681d5a07d Johannes Weiner 2018-10-26 1349 struct rq *rq; eb414681d5a07d Johannes Weiner 2018-10-26 1350 e0c274472d5d27 Johannes Weiner 2018-11-30 1351 if (static_branch_likely(&psi_disabled)) eb414681d5a07d Johannes Weiner 2018-10-26 1352 return; eb414681d5a07d Johannes Weiner 2018-10-26 1353 eb414681d5a07d Johannes Weiner 2018-10-26 1354 if (*flags) eb414681d5a07d Johannes Weiner 2018-10-26 1355 return; 3dfdd2f9d0dbe7 Lu Jialin 2024-01-02 1356 3dfdd2f9d0dbe7 Lu Jialin 2024-01-02 1357 trace_psi_memstall_leave(_RET_IP_); eb414681d5a07d Johannes Weiner 2018-10-26 1358 /* 1066d1b6974e09 Yafang Shao 2020-03-16 1359 * in_memstall clearing & accounting needs to be atomic wrt eb414681d5a07d Johannes Weiner 2018-10-26 1360 * changes to the task's scheduling state, otherwise we could eb414681d5a07d Johannes Weiner 2018-10-26 1361 * race with CPU migration. eb414681d5a07d Johannes Weiner 2018-10-26 1362 */ eb414681d5a07d Johannes Weiner 2018-10-26 1363 rq = this_rq_lock_irq(&rf); eb414681d5a07d Johannes Weiner 2018-10-26 1364 1066d1b6974e09 Yafang Shao 2020-03-16 1365 current->in_memstall = 0; cb0e52b7748737 Brian Chen 2021-11-10 1366 psi_task_change(current, TSK_MEMSTALL | TSK_MEMSTALL_RUNNING, 0); eb414681d5a07d Johannes Weiner 2018-10-26 1367 eb414681d5a07d Johannes Weiner 2018-10-26 1368 rq_unlock_irq(rq, &rf); eb414681d5a07d Johannes Weiner 2018-10-26 1369 } 527eb453bbfe65 Christoph Hellwig 2022-09-15 1370 EXPORT_SYMBOL_GPL(psi_memstall_leave); eb414681d5a07d Johannes Weiner 2018-10-26 1371 2ce7135adc9ad0 Johannes Weiner 2018-10-26 1372 #ifdef CONFIG_CGROUPS 2ce7135adc9ad0 Johannes Weiner 2018-10-26 1373 int psi_cgroup_alloc(struct cgroup *cgroup) 2ce7135adc9ad0 Johannes Weiner 2018-10-26 1374 { e2ad8ab04c5cdf Chengming Zhou 2022-08-26 1375 if (!static_branch_likely(&psi_cgroups_enabled)) 2ce7135adc9ad0 Johannes Weiner 2018-10-26 1376 return 0; 2ce7135adc9ad0 Johannes Weiner 2018-10-26 1377 2b97cf76289a4f Hao Jia 2022-08-06 1378 cgroup->psi = kzalloc(sizeof(struct psi_group), GFP_KERNEL); 5f69a6577bc33d Chen Wandun 2022-05-26 1379 if (!cgroup->psi) 2ce7135adc9ad0 Johannes Weiner 2018-10-26 1380 return -ENOMEM; 5f69a6577bc33d Chen Wandun 2022-05-26 1381 5f69a6577bc33d Chen Wandun 2022-05-26 1382 cgroup->psi->pcpu = alloc_percpu(struct psi_group_cpu); 5f69a6577bc33d Chen Wandun 2022-05-26 1383 if (!cgroup->psi->pcpu) { 5f69a6577bc33d Chen Wandun 2022-05-26 1384 kfree(cgroup->psi); 5f69a6577bc33d Chen Wandun 2022-05-26 1385 return -ENOMEM; 5f69a6577bc33d Chen Wandun 2022-05-26 1386 } 5f69a6577bc33d Chen Wandun 2022-05-26 1387 group_init(cgroup->psi); dc86aba751e286 Chengming Zhou 2022-08-26 1388 cgroup->psi->parent = cgroup_psi(cgroup_parent(cgroup)); 2ce7135adc9ad0 Johannes Weiner 2018-10-26 1389 return 0; 2ce7135adc9ad0 Johannes Weiner 2018-10-26 1390 } 2ce7135adc9ad0 Johannes Weiner 2018-10-26 1391 2ce7135adc9ad0 Johannes Weiner 2018-10-26 1392 void psi_cgroup_free(struct cgroup *cgroup) 2ce7135adc9ad0 Johannes Weiner 2018-10-26 1393 { e2ad8ab04c5cdf Chengming Zhou 2022-08-26 1394 if (!static_branch_likely(&psi_cgroups_enabled)) 2ce7135adc9ad0 Johannes Weiner 2018-10-26 1395 return; 2ce7135adc9ad0 Johannes Weiner 2018-10-26 1396 5f69a6577bc33d Chen Wandun 2022-05-26 1397 cancel_delayed_work_sync(&cgroup->psi->avgs_work); 5f69a6577bc33d Chen Wandun 2022-05-26 1398 free_percpu(cgroup->psi->pcpu); 0e94682b73bfa6 Suren Baghdasaryan 2019-05-14 1399 /* All triggers must be removed by now */ 65457b74aa9437 Domenico Cerasuolo 2023-03-30 1400 WARN_ONCE(cgroup->psi->rtpoll_states, "psi: trigger leak\n"); 5f69a6577bc33d Chen Wandun 2022-05-26 1401 kfree(cgroup->psi); 2ce7135adc9ad0 Johannes Weiner 2018-10-26 1402 } 2ce7135adc9ad0 Johannes Weiner 2018-10-26 1403 2ce7135adc9ad0 Johannes Weiner 2018-10-26 1404 /** 2ce7135adc9ad0 Johannes Weiner 2018-10-26 1405 * cgroup_move_task - move task to a different cgroup 2ce7135adc9ad0 Johannes Weiner 2018-10-26 1406 * @task: the task 2ce7135adc9ad0 Johannes Weiner 2018-10-26 1407 * @to: the target css_set 2ce7135adc9ad0 Johannes Weiner 2018-10-26 1408 * 2ce7135adc9ad0 Johannes Weiner 2018-10-26 1409 * Move task to a new cgroup and safely migrate its associated stall 2ce7135adc9ad0 Johannes Weiner 2018-10-26 1410 * state between the different groups. 2ce7135adc9ad0 Johannes Weiner 2018-10-26 1411 * 2ce7135adc9ad0 Johannes Weiner 2018-10-26 1412 * This function acquires the task's rq lock to lock out concurrent 2ce7135adc9ad0 Johannes Weiner 2018-10-26 1413 * changes to the task's scheduling state and - in case the task is 2ce7135adc9ad0 Johannes Weiner 2018-10-26 1414 * running - concurrent changes to its stall state. 2ce7135adc9ad0 Johannes Weiner 2018-10-26 1415 */ 2ce7135adc9ad0 Johannes Weiner 2018-10-26 @1416 void cgroup_move_task(struct task_struct *task, struct css_set *to) 2ce7135adc9ad0 Johannes Weiner 2018-10-26 1417 { d583d360a620e6 Johannes Weiner 2021-05-03 1418 unsigned int task_flags; 2ce7135adc9ad0 Johannes Weiner 2018-10-26 1419 struct rq_flags rf; 2ce7135adc9ad0 Johannes Weiner 2018-10-26 1420 struct rq *rq; 2ce7135adc9ad0 Johannes Weiner 2018-10-26 1421 e2ad8ab04c5cdf Chengming Zhou 2022-08-26 1422 if (!static_branch_likely(&psi_cgroups_enabled)) { 8fcb2312d1e330 Olof Johansson 2018-11-16 1423 /* 8fcb2312d1e330 Olof Johansson 2018-11-16 1424 * Lame to do this here, but the scheduler cannot be locked 8fcb2312d1e330 Olof Johansson 2018-11-16 1425 * from the outside, so we move cgroups from inside sched/. 8fcb2312d1e330 Olof Johansson 2018-11-16 1426 */ 8fcb2312d1e330 Olof Johansson 2018-11-16 1427 rcu_assign_pointer(task->cgroups, to); 8fcb2312d1e330 Olof Johansson 2018-11-16 1428 return; 8fcb2312d1e330 Olof Johansson 2018-11-16 1429 } 8fcb2312d1e330 Olof Johansson 2018-11-16 1430 2ce7135adc9ad0 Johannes Weiner 2018-10-26 1431 rq = task_rq_lock(task, &rf); 2ce7135adc9ad0 Johannes Weiner 2018-10-26 1432 d583d360a620e6 Johannes Weiner 2021-05-03 1433 /* d583d360a620e6 Johannes Weiner 2021-05-03 1434 * We may race with schedule() dropping the rq lock between d583d360a620e6 Johannes Weiner 2021-05-03 1435 * deactivating prev and switching to next. Because the psi d583d360a620e6 Johannes Weiner 2021-05-03 1436 * updates from the deactivation are deferred to the switch d583d360a620e6 Johannes Weiner 2021-05-03 1437 * callback to save cgroup tree updates, the task's scheduling d583d360a620e6 Johannes Weiner 2021-05-03 1438 * state here is not coherent with its psi state: d583d360a620e6 Johannes Weiner 2021-05-03 1439 * d583d360a620e6 Johannes Weiner 2021-05-03 1440 * schedule() cgroup_move_task() d583d360a620e6 Johannes Weiner 2021-05-03 1441 * rq_lock() d583d360a620e6 Johannes Weiner 2021-05-03 1442 * deactivate_task() d583d360a620e6 Johannes Weiner 2021-05-03 1443 * p->on_rq = 0 d583d360a620e6 Johannes Weiner 2021-05-03 1444 * psi_dequeue() // defers TSK_RUNNING & TSK_IOWAIT updates d583d360a620e6 Johannes Weiner 2021-05-03 1445 * pick_next_task() d583d360a620e6 Johannes Weiner 2021-05-03 1446 * rq_unlock() d583d360a620e6 Johannes Weiner 2021-05-03 1447 * rq_lock() d583d360a620e6 Johannes Weiner 2021-05-03 1448 * psi_task_change() // old cgroup d583d360a620e6 Johannes Weiner 2021-05-03 1449 * task->cgroups = to d583d360a620e6 Johannes Weiner 2021-05-03 1450 * psi_task_change() // new cgroup d583d360a620e6 Johannes Weiner 2021-05-03 1451 * rq_unlock() d583d360a620e6 Johannes Weiner 2021-05-03 1452 * rq_lock() d583d360a620e6 Johannes Weiner 2021-05-03 1453 * psi_sched_switch() // does deferred updates in new cgroup d583d360a620e6 Johannes Weiner 2021-05-03 1454 * d583d360a620e6 Johannes Weiner 2021-05-03 1455 * Don't rely on the scheduling state. Use psi_flags instead. d583d360a620e6 Johannes Weiner 2021-05-03 1456 */ d583d360a620e6 Johannes Weiner 2021-05-03 1457 task_flags = task->psi_flags; 2ce7135adc9ad0 Johannes Weiner 2018-10-26 1458 2ce7135adc9ad0 Johannes Weiner 2018-10-26 1459 if (task_flags) 2ce7135adc9ad0 Johannes Weiner 2018-10-26 1460 psi_task_change(task, task_flags, 0); 2ce7135adc9ad0 Johannes Weiner 2018-10-26 1461 8fcb2312d1e330 Olof Johansson 2018-11-16 1462 /* See comment above */ 2ce7135adc9ad0 Johannes Weiner 2018-10-26 1463 rcu_assign_pointer(task->cgroups, to); 2ce7135adc9ad0 Johannes Weiner 2018-10-26 1464 2ce7135adc9ad0 Johannes Weiner 2018-10-26 1465 if (task_flags) 2ce7135adc9ad0 Johannes Weiner 2018-10-26 1466 psi_task_change(task, 0, task_flags); 2ce7135adc9ad0 Johannes Weiner 2018-10-26 1467 2ce7135adc9ad0 Johannes Weiner 2018-10-26 1468 task_rq_unlock(rq, task, &rf); 2ce7135adc9ad0 Johannes Weiner 2018-10-26 1469 } 34f26a15611afb Chengming Zhou 2022-09-07 1470 :::::: The code at line 1262 was first introduced by commit :::::: 52b1364ba0b105122d6de0e719b36db705011ac1 sched/psi: Add PSI_IRQ to track IRQ/SOFTIRQ pressure :::::: TO: Chengming Zhou <zhouchengming(a)bytedance.com> :::::: CC: Peter Zijlstra <peterz(a)infradead.org> -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki

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[openeuler:OLK-5.10 2862/2862] fs/cachefiles/ondemand.o: warning: objtool: cachefiles_ondemand_daemon_read()+0x2ea: unreachable instruction
by kernel test robot 17 Apr '25

17 Apr '25

Hi Jeffle, First bad commit (maybe != root cause): tree: https://gitee.com/openeuler/kernel.git OLK-5.10 head: 2affea8965688b8231cf977864ba7539320d5db8 commit: 2937cd5f8c58bd8e7895f6b2698057721442248e [2862/2862] cachefiles: notify the user daemon when looking up cookie config: x86_64-buildonly-randconfig-005-20250415 (https://download.01.org/0day-ci/archive/20250417/202504170158.DUuilMVg-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/20250417/202504170158.DUuilMVg-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/202504170158.DUuilMVg-lkp@intel.com/ All warnings (new ones prefixed by >>): >> fs/cachefiles/ondemand.o: warning: objtool: cachefiles_ondemand_daemon_read()+0x2ea: unreachable instruction -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki

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[openeuler:openEuler-1.0-LTS 1582/1582] kernel/futex.o: warning: objtool: futex_wait()+0x2ab: unreachable instruction
by kernel test robot 17 Apr '25

17 Apr '25

Hi Thomas, FYI, the error/warning was bisected to this commit, please ignore it if it's irrelevant. tree: https://gitee.com/openeuler/kernel.git openEuler-1.0-LTS head: d47443532b562cff105f8cfbc32343f83a2ecd01 commit: 1d78ee3e3677377ad1596c4348677899fe8337ee [1582/1582] futex: Move futex exit handling into futex code config: x86_64-buildonly-randconfig-005-20250415 (https://download.01.org/0day-ci/archive/20250417/202504170042.n4ixMCSo-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/20250417/202504170042.n4ixMCSo-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/202504170042.n4ixMCSo-lkp@intel.com/ All warnings (new ones prefixed by >>): >> kernel/futex.o: warning: objtool: futex_wait()+0x2ab: unreachable instruction -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki

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[openeuler:openEuler-1.0-LTS] BUILD REGRESSION d47443532b562cff105f8cfbc32343f83a2ecd01
by kernel test robot 16 Apr '25

16 Apr '25

tree/branch: https://gitee.com/openeuler/kernel.git openEuler-1.0-LTS branch HEAD: d47443532b562cff105f8cfbc32343f83a2ecd01 !15862 tty: goldfish: Use tty_port_destroy() to destroy port Error/Warning (recently discovered and may have been fixed): https://lore.kernel.org/oe-kbuild-all/202503171950.PEaY4TuS-lkp@intel.com https://lore.kernel.org/oe-kbuild-all/202503181741.vcHyKenV-lkp@intel.com https://lore.kernel.org/oe-kbuild-all/202503201721.gZeymcpc-lkp@intel.com https://lore.kernel.org/oe-kbuild-all/202503271341.WPxyfHvo-lkp@intel.com https://lore.kernel.org/oe-kbuild-all/202503271858.j6vJ9Bhc-lkp@intel.com https://lore.kernel.org/oe-kbuild-all/202504100333.uIAnI5Io-lkp@intel.com https://lore.kernel.org/oe-kbuild-all/202504160234.O5AhsCPF-lkp@intel.com https://lore.kernel.org/oe-kbuild-all/202504160550.0sQHot70-lkp@intel.com https://lore.kernel.org/oe-kbuild-all/202504160744.SWErJnVd-lkp@intel.com https://lore.kernel.org/oe-kbuild-all/202504160834.JePJgVdj-lkp@intel.com https://lore.kernel.org/oe-kbuild-all/202504160854.8OhZdFkA-lkp@intel.com https://lore.kernel.org/oe-kbuild-all/202504161537.Uan8Cvv1-lkp@intel.com https://lore.kernel.org/oe-kbuild-all/202504162035.XTrGjsOi-lkp@intel.com https://lore.kernel.org/oe-kbuild-all/202504162155.YWQMdqiA-lkp@intel.com https://lore.kernel.org/oe-kbuild/202504160621.3VfLzprK-lkp@intel.com arch/x86/entry/entry_64.o: warning: objtool: .entry.text+0x162: unsupported intra-function call arch/x86/entry/entry_64.o: warning: objtool: .entry.text+0x1c2: unsupported intra-function call arch/x86/entry/entry_64.o: warning: objtool: .entry.text+0x1d1: unsupported intra-function call arch/x86/entry/entry_64.o: warning: objtool: .entry.text+0x1d2: unsupported intra-function call arch/x86/entry/entry_64.o: warning: objtool: .entry.text+0x1e1: unsupported intra-function call arch/x86/entry/entry_64.o: warning: objtool: If this is a retpoline, please patch it in with alternatives and annotate it with ANNOTATE_NOSPEC_ALTERNATIVE. arch/x86/kernel/apic/io_apic.o: warning: objtool: acpi_get_override_irq()+0x108: can't find switch jump table arch/x86/mm/init.o: warning: objtool: init_mem_mapping()+0x147: unreachable instruction block/blk-lib.o: warning: objtool: __blkdev_issue_discard()+0x22a: unreachable instruction block/blk-mq-debugfs.o: warning: objtool: debugfs_rq_show()+0xdf: unreachable instruction drivers/dma/pl330.c:2598:15: warning: 'dst' may be used uninitialized in this function [-Wmaybe-uninitialized] drivers/dma/pl330.c:2599:15: warning: 'src' may be used uninitialized in this function [-Wmaybe-uninitialized] drivers/gpu/drm/amd/amdgpu/amdgpu_ids.o: warning: objtool: amdgpu_vmid_grab()+0xd3e: unreachable instruction drivers/gpu/drm/ttm/ttm_object.c:60: error: Cannot parse struct or union! drivers/media/i2c/adv7511-v4l2.o: warning: objtool: adv7511_set_fmt()+0x805: unreachable instruction drivers/nvdimm/label.o: warning: objtool: nd_blk_namespace_label_update()+0x1326: unreachable instruction drivers/pinctrl/core.c:1338: error: Cannot parse struct or union! drivers/platform/x86/intel_speed_select_if/.tmp_isst_if_mbox_msr.o: warning: objtool: missing symbol for section .exit.text drivers/platform/x86/intel_speed_select_if/.tmp_isst_if_mbox_pci.o: warning: objtool: missing symbol for section .init.text drivers/platform/x86/intel_speed_select_if/.tmp_isst_if_mmio.o: warning: objtool: missing symbol for section .init.text drivers/spi/spi-phytium-plat.c:122:8: error: implicit declaration of function 'gpiod_count' [-Werror,-Wimplicit-function-declaration] drivers/spi/spi-phytium-plat.c:128:12: error: implicit declaration of function 'devm_gpiod_get_index_optional' [-Werror,-Wimplicit-function-declaration] drivers/spi/spi-phytium-plat.c:129:17: error: use of undeclared identifier 'GPIOD_OUT_LOW' drivers/spi/spi-phytium-plat.c:136:14: error: implicit declaration of function 'desc_to_gpio' [-Werror,-Wimplicit-function-declaration] drivers/staging/comedi/drivers/ni_labpc_common.o: warning: objtool: labpc_ai_check_chanlist()+0x59: can't find switch jump table drivers/usb/typec/tps6598x.o: warning: objtool: tps6598x_probe()+0x1ed: can't find switch jump table fs/debugfs/file.o: warning: objtool: full_proxy_open()+0x55a: unreachable instruction fs/ext4/mballoc.o: warning: objtool: ext4_mb_complex_scan_group()+0x11a4: unreachable instruction fs/gfs2/rgrp.o: warning: objtool: __rs_deltree()+0x188: unreachable instruction fs/xfs/xfs_message.o: warning: objtool: assfail()+0x4f: unreachable instruction include/asm-generic/atomic-instrumented.h:33:9: warning: 'wait_req' may be used uninitialized [-Wmaybe-uninitialized] include/linux/filter.h:332:4: warning: cast between incompatible function types from 'int (* const)(struct bpf_map *, void *)' to 'u64 (*)(u64, u64, u64, u64, u64)' {aka 'long long unsigned int (*)(long long unsigned int, long long unsigned int, long long unsigned int, long long unsigned int, long long unsigned int)'} [-Wcast-function-type] include/linux/filter.h:332:4: warning: cast between incompatible function types from 'int (* const)(struct bpf_map *, void *, void *, u64)' {aka 'int (* const)(struct bpf_map *, void *, void *, long long unsigned int)'} to 'u64 (*)(u64, u64, u64, u64, u64)' {aka 'long long unsigned int (*)(long long unsigned int, long long unsigned int, long long unsigned int, long long unsigned int, long long unsigned int)'} [-Wcast-function-type] include/linux/filter.h:332:4: warning: cast between incompatible function types from 'void * (* const)(struct bpf_map *, void *)' to 'u64 (*)(u64, u64, u64, u64, u64)' {aka 'long long unsigned int (*)(long long unsigned int, long long unsigned int, long long unsigned int, long long unsigned int, long long unsigned int)'} [-Wcast-function-type] include/linux/thread_info.h:119:17: warning: 'usercmd' may be used uninitialized [-Wmaybe-uninitialized] init/Kconfig:34: syntax error kernel/hung_task.c:148:7: error: use of undeclared identifier 'sysctl_hung_task_all_cpu_backtrace' kernel/livepatch/core.c:1013:12: warning: no previous prototype for function 'arch_klp_func_can_patch' [-Wmissing-prototypes] kernel/sched/.tmp_debug.o: warning: objtool: missing symbol for section .text.unlikely kernel/trace/trace_mmiotrace.o: warning: objtool: mmio_print_line()+0x272: unreachable instruction lib/ubsan.c:195:6: warning: mismatch in argument 1 type of built-in function '__ubsan_handle_add_overflow'; expected 'void *' [-Wbuiltin-declaration-mismatch] lib/ubsan.c:203:6: warning: mismatch in argument 1 type of built-in function '__ubsan_handle_sub_overflow'; expected 'void *' [-Wbuiltin-declaration-mismatch] lib/ubsan.c:210:6: warning: mismatch in argument 1 type of built-in function '__ubsan_handle_mul_overflow'; expected 'void *' [-Wbuiltin-declaration-mismatch] lib/ubsan.c:217:6: warning: mismatch in argument 1 type of built-in function '__ubsan_handle_negate_overflow'; expected 'void *' [-Wbuiltin-declaration-mismatch] lib/ubsan.c:238:6: warning: mismatch in argument 1 type of built-in function '__ubsan_handle_divrem_overflow'; expected 'void *' [-Wbuiltin-declaration-mismatch] lib/ubsan.c:337:6: warning: mismatch in argument 1 type of built-in function '__ubsan_handle_type_mismatch_v1'; expected 'void *' [-Wbuiltin-declaration-mismatch] lib/ubsan.c:352:6: warning: mismatch in argument 1 type of built-in function '__ubsan_handle_vla_bound_not_positive'; expected 'void *' [-Wbuiltin-declaration-mismatch] lib/ubsan.c:370:6: warning: mismatch in argument 1 type of built-in function '__ubsan_handle_out_of_bounds'; expected 'void *' [-Wbuiltin-declaration-mismatch] lib/ubsan.c:387:6: warning: mismatch in argument 1 type of built-in function '__ubsan_handle_shift_out_of_bounds'; expected 'void *' [-Wbuiltin-declaration-mismatch] lib/ubsan.c:438:6: warning: mismatch in argument 1 type of built-in function '__ubsan_handle_load_invalid_value'; expected 'void *' [-Wbuiltin-declaration-mismatch] mm/.tmp_memcontrol.o: warning: objtool: missing symbol for section .text.unlikely mm/.tmp_util.o: warning: objtool: missing symbol for section .text mm/debug.c:143:21: warning: more '%' conversions than data arguments [-Wformat-insufficient-args] mm/debug.c:174:3: warning: format specifies type 'void *' but the argument has type 'int' [-Wformat] mm/debug.c:175:18: warning: format specifies type 'unsigned long' but the argument has type 'const unsigned long *' [-Wformat] mm/debug.c:175:3: warning: format specifies type 'int' but the argument has type 'unsigned long' [-Wformat] mm/hugetlb.c:1370:6: warning: no previous prototype for function 'free_huge_page_to_dhugetlb_pool' [-Wmissing-prototypes] mm/vmscan.c:3257:21: error: implicit declaration of function 'kernel_swap_enabled' [-Werror,-Wimplicit-function-declaration] mm/vmscan.o: warning: objtool: shrink_node()+0x981: can't find switch jump table Unverified Error/Warning (likely false positive, kindly check if interested): ./samples/mic/mpssd/mpssd.c: 40 linux/version.h not needed. block/blk-throttle.c:2306:1-7: preceding lock on line 2212 drivers/usb/dwc2/gadget.o: warning: objtool: dwc2_gadget_config_nonisoc_xfer_ddma() falls through to next function dwc2_hsotg_read_frameno() mm/kasan/kasan_init.c:220: warning: Function parameter or member 'shadow_end' not described in 'kasan_populate_zero_shadow' mm/kasan/kasan_init.c:220: warning: Function parameter or member 'shadow_start' not described in 'kasan_populate_zero_shadow' sound/isa/msnd/msnd_pinnacle.o: warning: objtool: snd_msnd_probe()+0xf7: can't find switch jump table Error/Warning ids grouped by kconfigs: recent_errors |-- arm64-allmodconfig | |-- mm-kasan-kasan_init.c:warning:Function-parameter-or-member-shadow_end-not-described-in-kasan_populate_zero_shadow | `-- mm-kasan-kasan_init.c:warning:Function-parameter-or-member-shadow_start-not-described-in-kasan_populate_zero_shadow |-- arm64-randconfig-001-20250415 | `-- drivers-pinctrl-core.c:error:Cannot-parse-struct-or-union |-- arm64-randconfig-002-20250415 | |-- drivers-dma-pl330.c:warning:dst-may-be-used-uninitialized-in-this-function | |-- drivers-dma-pl330.c:warning:src-may-be-used-uninitialized-in-this-function | `-- drivers-pinctrl-core.c:error:Cannot-parse-struct-or-union |-- arm64-randconfig-003-20250415 | |-- drivers-pinctrl-core.c:error:Cannot-parse-struct-or-union | |-- include-linux-filter.h:warning:cast-between-incompatible-function-types-from-int-(-const)(struct-bpf_map-void-)-to-u64-(-)(u64-u64-u64-u64-u64)-aka-long-long-unsigned-int-(-)(long-long-unsigned-int-lo | |-- include-linux-filter.h:warning:cast-between-incompatible-function-types-from-int-(-const)(struct-bpf_map-void-void-u64)-aka-int-(-const)(struct-bpf_map-void-void-long-long-unsigned-int)-to-u64-(-)(u64 | |-- include-linux-filter.h:warning:cast-between-incompatible-function-types-from-void-(-const)(struct-bpf_map-void-)-to-u64-(-)(u64-u64-u64-u64-u64)-aka-long-long-unsigned-int-(-)(long-long-unsigned-int-l | |-- lib-ubsan.c:warning:mismatch-in-argument-type-of-built-in-function-__ubsan_handle_add_overflow-expected-void | |-- lib-ubsan.c:warning:mismatch-in-argument-type-of-built-in-function-__ubsan_handle_divrem_overflow-expected-void | |-- lib-ubsan.c:warning:mismatch-in-argument-type-of-built-in-function-__ubsan_handle_load_invalid_value-expected-void | |-- lib-ubsan.c:warning:mismatch-in-argument-type-of-built-in-function-__ubsan_handle_mul_overflow-expected-void | |-- lib-ubsan.c:warning:mismatch-in-argument-type-of-built-in-function-__ubsan_handle_negate_overflow-expected-void | |-- lib-ubsan.c:warning:mismatch-in-argument-type-of-built-in-function-__ubsan_handle_out_of_bounds-expected-void | |-- lib-ubsan.c:warning:mismatch-in-argument-type-of-built-in-function-__ubsan_handle_shift_out_of_bounds-expected-void | |-- lib-ubsan.c:warning:mismatch-in-argument-type-of-built-in-function-__ubsan_handle_sub_overflow-expected-void | |-- lib-ubsan.c:warning:mismatch-in-argument-type-of-built-in-function-__ubsan_handle_type_mismatch_v1-expected-void | |-- lib-ubsan.c:warning:mismatch-in-argument-type-of-built-in-function-__ubsan_handle_vla_bound_not_positive-expected-void | |-- mm-kasan-kasan_init.c:warning:Function-parameter-or-member-shadow_end-not-described-in-kasan_populate_zero_shadow | `-- mm-kasan-kasan_init.c:warning:Function-parameter-or-member-shadow_start-not-described-in-kasan_populate_zero_shadow |-- arm64-randconfig-004-20250415 | |-- drivers-dma-pl330.c:warning:dst-may-be-used-uninitialized-in-this-function | |-- drivers-dma-pl330.c:warning:src-may-be-used-uninitialized-in-this-function | |-- drivers-gpu-drm-ttm-ttm_object.c:error:Cannot-parse-struct-or-union | |-- drivers-pinctrl-core.c:error:Cannot-parse-struct-or-union | |-- include-linux-filter.h:warning:cast-between-incompatible-function-types-from-int-(-const)(struct-bpf_map-void-)-to-u64-(-)(u64-u64-u64-u64-u64)-aka-long-long-unsigned-int-(-)(long-long-unsigned-int-lo | |-- include-linux-filter.h:warning:cast-between-incompatible-function-types-from-int-(-const)(struct-bpf_map-void-void-u64)-aka-int-(-const)(struct-bpf_map-void-void-long-long-unsigned-int)-to-u64-(-)(u64 | `-- include-linux-filter.h:warning:cast-between-incompatible-function-types-from-void-(-const)(struct-bpf_map-void-)-to-u64-(-)(u64-u64-u64-u64-u64)-aka-long-long-unsigned-int-(-)(long-long-unsigned-int-l |-- arm64-randconfig-052-20250416 | `-- init-Kconfig:syntax-error |-- arm64-randconfig-055-20250416 | `-- init-Kconfig:syntax-error |-- arm64-randconfig-r062-20250416 | |-- drivers-gpu-drm-ttm-ttm_object.c:error:Cannot-parse-struct-or-union | |-- drivers-pinctrl-core.c:error:Cannot-parse-struct-or-union | |-- mm-kasan-kasan_init.c:warning:Function-parameter-or-member-shadow_end-not-described-in-kasan_populate_zero_shadow | `-- mm-kasan-kasan_init.c:warning:Function-parameter-or-member-shadow_start-not-described-in-kasan_populate_zero_shadow |-- x86_64-allnoconfig | |-- arch-x86-entry-entry_64.o:warning:objtool:.entry.text:unsupported-intra-function-call | |-- mm-vmscan.c:error:implicit-declaration-of-function-kernel_swap_enabled-Werror-Wimplicit-function-declaration | `-- samples-mic-mpssd-mpssd.c:linux-version.h-not-needed. |-- x86_64-allyesconfig | |-- drivers-gpu-drm-ttm-ttm_object.c:error:Cannot-parse-struct-or-union | |-- drivers-pinctrl-core.c:error:Cannot-parse-struct-or-union | |-- mm-kasan-kasan_init.c:warning:Function-parameter-or-member-shadow_end-not-described-in-kasan_populate_zero_shadow | |-- mm-kasan-kasan_init.c:warning:Function-parameter-or-member-shadow_start-not-described-in-kasan_populate_zero_shadow | `-- mm-page_alloc.c:warning:cast-from-int-(-)(unsigned-long-unsigned-long-struct-deferred_args-)-to-ktask_thread_func-(aka-int-(-)(void-void-void-)-)-converts-to-incompatible-function-type |-- x86_64-buildonly-randconfig-001-20250401 | `-- drivers-nvdimm-label.o:warning:objtool:nd_blk_namespace_label_update:unreachable-instruction |-- x86_64-buildonly-randconfig-001-20250415 | `-- drivers-pinctrl-core.c:error:Cannot-parse-struct-or-union |-- x86_64-buildonly-randconfig-002-20250408 | |-- drivers-staging-comedi-drivers-ni_labpc_common.o:warning:objtool:labpc_ai_check_chanlist:can-t-find-switch-jump-table | `-- drivers-usb-typec-tps6598x.o:warning:objtool:tps6598x_probe:can-t-find-switch-jump-table |-- x86_64-buildonly-randconfig-002-20250415 | |-- arch-x86-entry-entry_64.o:warning:objtool:.entry.text:unsupported-intra-function-call | |-- arch-x86-entry-entry_64.o:warning:objtool:If-this-is-a-retpoline-please-patch-it-in-with-alternatives-and-annotate-it-with-ANNOTATE_NOSPEC_ALTERNATIVE. | |-- drivers-gpu-drm-ttm-ttm_object.c:error:Cannot-parse-struct-or-union | |-- drivers-pinctrl-core.c:error:Cannot-parse-struct-or-union | |-- mm-kasan-kasan_init.c:warning:Function-parameter-or-member-shadow_end-not-described-in-kasan_populate_zero_shadow | `-- mm-kasan-kasan_init.c:warning:Function-parameter-or-member-shadow_start-not-described-in-kasan_populate_zero_shadow |-- x86_64-buildonly-randconfig-003-20250207 | `-- mm-hugetlb.c:warning:no-previous-prototype-for-function-free_huge_page_to_dhugetlb_pool |-- x86_64-buildonly-randconfig-003-20250315 | |-- arch-x86-kernel-apic-io_apic.o:warning:objtool:acpi_get_override_irq:can-t-find-switch-jump-table | `-- sound-isa-msnd-msnd_pinnacle.o:warning:objtool:snd_msnd_probe:can-t-find-switch-jump-table |-- x86_64-buildonly-randconfig-003-20250415 | |-- arch-x86-entry-entry_64.o:warning:objtool:.entry.text:unsupported-intra-function-call | |-- arch-x86-entry-entry_64.o:warning:objtool:If-this-is-a-retpoline-please-patch-it-in-with-alternatives-and-annotate-it-with-ANNOTATE_NOSPEC_ALTERNATIVE. | |-- drivers-pinctrl-core.c:error:Cannot-parse-struct-or-union | |-- include-asm-generic-atomic-instrumented.h:warning:wait_req-may-be-used-uninitialized | |-- include-linux-thread_info.h:warning:usercmd-may-be-used-uninitialized | |-- mm-kasan-kasan_init.c:warning:Function-parameter-or-member-shadow_end-not-described-in-kasan_populate_zero_shadow | `-- mm-kasan-kasan_init.c:warning:Function-parameter-or-member-shadow_start-not-described-in-kasan_populate_zero_shadow |-- x86_64-buildonly-randconfig-004-20250102 | `-- drivers-media-i2c-adv7511-v4l2.o:warning:objtool:adv7511_set_fmt:unreachable-instruction |-- x86_64-buildonly-randconfig-004-20250415 | |-- drivers-pinctrl-core.c:error:Cannot-parse-struct-or-union | |-- mm-page_alloc.c:warning:cast-from-int-(-)(unsigned-long-unsigned-long-struct-deferred_args-)-to-ktask_thread_func-(aka-int-(-)(void-void-void-)-)-converts-to-incompatible-function-type | `-- mm-vmscan.c:error:implicit-declaration-of-function-kernel_swap_enabled-Werror-Wimplicit-function-declaration |-- x86_64-buildonly-randconfig-005-20241216 | `-- mm-vmscan.c:error:implicit-declaration-of-function-kernel_swap_enabled-Werror-Wimplicit-function-declaration |-- x86_64-buildonly-randconfig-005-20250415 | |-- arch-x86-entry-entry_64.o:warning:objtool:.entry.text:unsupported-intra-function-call | |-- arch-x86-entry-entry_64.o:warning:objtool:If-this-is-a-retpoline-please-patch-it-in-with-alternatives-and-annotate-it-with-ANNOTATE_NOSPEC_ALTERNATIVE. | |-- arch-x86-mm-init.o:warning:objtool:init_mem_mapping:unreachable-instruction | |-- block-blk-lib.o:warning:objtool:__blkdev_issue_discard:unreachable-instruction | |-- drivers-gpu-drm-amd-amdgpu-amdgpu_ids.o:warning:objtool:amdgpu_vmid_grab:unreachable-instruction | |-- drivers-gpu-drm-ttm-ttm_object.c:error:Cannot-parse-struct-or-union | |-- drivers-pinctrl-core.c:error:Cannot-parse-struct-or-union | |-- fs-gfs2-rgrp.o:warning:objtool:__rs_deltree:unreachable-instruction | |-- fs-xfs-xfs_message.o:warning:objtool:assfail:unreachable-instruction | |-- kernel-trace-trace_mmiotrace.o:warning:objtool:mmio_print_line:unreachable-instruction | `-- mm-swapfile.o:warning:objtool:free_swap_and_cache:unreachable-instruction |-- x86_64-buildonly-randconfig-006-20250408 | `-- block-blk-mq-debugfs.o:warning:objtool:debugfs_rq_show:unreachable-instruction |-- x86_64-buildonly-randconfig-006-20250415 | |-- drivers-gpu-drm-ttm-ttm_object.c:error:Cannot-parse-struct-or-union | |-- drivers-pinctrl-core.c:error:Cannot-parse-struct-or-union | |-- drivers-platform-x86-intel_speed_select_if-.tmp_isst_if_mbox_msr.o:warning:objtool:missing-symbol-for-section-.exit.text | |-- drivers-platform-x86-intel_speed_select_if-.tmp_isst_if_mbox_pci.o:warning:objtool:missing-symbol-for-section-.init.text | |-- drivers-platform-x86-intel_speed_select_if-.tmp_isst_if_mmio.o:warning:objtool:missing-symbol-for-section-.init.text | |-- kernel-sched-.tmp_debug.o:warning:objtool:missing-symbol-for-section-.text.unlikely | |-- mm-.tmp_memcontrol.o:warning:objtool:missing-symbol-for-section-.text.unlikely | `-- mm-.tmp_util.o:warning:objtool:missing-symbol-for-section-.text |-- x86_64-defconfig | |-- arch-x86-entry-entry_64.o:warning:objtool:.entry.text:unsupported-intra-function-call | |-- arch-x86-entry-entry_64.o:warning:objtool:If-this-is-a-retpoline-please-patch-it-in-with-alternatives-and-annotate-it-with-ANNOTATE_NOSPEC_ALTERNATIVE. | `-- include-asm-generic-bug.h:warning:mcu_ctrl-may-be-used-uninitialized-in-this-function |-- x86_64-randconfig-101-20241223 | `-- fs-ext4-mballoc.o:warning:objtool:ext4_mb_complex_scan_group:unreachable-instruction |-- x86_64-randconfig-102-20250103 | `-- drivers-acpi-cppc_acpi.c:WARNING:NULL-check-before-some-freeing-functions-is-not-needed. |-- x86_64-randconfig-102-20250408 | `-- block-blk-throttle.c:preceding-lock-on-line |-- x86_64-randconfig-103-20241218 | `-- kernel-hung_task.c:error:use-of-undeclared-identifier-sysctl_hung_task_all_cpu_backtrace |-- x86_64-randconfig-103-20250305 | `-- drivers-gpu-drm-amd-amdgpu-amdgpu_ids.o:warning:objtool:amdgpu_vmid_grab:unreachable-instruction |-- x86_64-randconfig-104-20250321 | `-- drivers-usb-dwc2-gadget.o:warning:objtool:dwc2_gadget_config_nonisoc_xfer_ddma-falls-through-to-next-function-dwc2_hsotg_read_frameno() |-- x86_64-randconfig-104-20250408 | |-- drivers-spi-spi-phytium-plat.c:error:implicit-declaration-of-function-desc_to_gpio-Werror-Wimplicit-function-declaration | |-- drivers-spi-spi-phytium-plat.c:error:implicit-declaration-of-function-devm_gpiod_get_index_optional-Werror-Wimplicit-function-declaration | |-- drivers-spi-spi-phytium-plat.c:error:implicit-declaration-of-function-gpiod_count-Werror-Wimplicit-function-declaration | `-- drivers-spi-spi-phytium-plat.c:error:use-of-undeclared-identifier-GPIOD_OUT_LOW |-- x86_64-randconfig-122-20241226 | `-- fs-debugfs-file.o:warning:objtool:full_proxy_open:unreachable-instruction |-- x86_64-randconfig-122-20250309 | `-- drivers-net-tun.c:sparse:sparse:incompatible-types-in-comparison-expression-(different-address-spaces): |-- x86_64-randconfig-122-20250404 | `-- mm-vmscan.o:warning:objtool:shrink_node:can-t-find-switch-jump-table |-- x86_64-randconfig-161-20250322 | `-- kernel-livepatch-core.c:warning:no-previous-prototype-for-function-arch_klp_func_can_patch |-- x86_64-randconfig-161-20250416 | |-- arch-x86-entry-entry_64.o:warning:objtool:.entry.text:unsupported-intra-function-call | |-- arch-x86-entry-entry_64.o:warning:objtool:If-this-is-a-retpoline-please-patch-it-in-with-alternatives-and-annotate-it-with-ANNOTATE_NOSPEC_ALTERNATIVE. | |-- drivers-pinctrl-core.c:error:Cannot-parse-struct-or-union | |-- mm-kasan-kasan_init.c:warning:Function-parameter-or-member-shadow_end-not-described-in-kasan_populate_zero_shadow | `-- mm-kasan-kasan_init.c:warning:Function-parameter-or-member-shadow_start-not-described-in-kasan_populate_zero_shadow `-- x86_64-randconfig-r112-20250311 |-- mm-debug.c:warning:format-specifies-type-int-but-the-argument-has-type-unsigned-long |-- mm-debug.c:warning:format-specifies-type-unsigned-long-but-the-argument-has-type-const-unsigned-long |-- mm-debug.c:warning:format-specifies-type-void-but-the-argument-has-type-int `-- mm-debug.c:warning:more-conversions-than-data-arguments elapsed time: 1447m configs tested: 16 configs skipped: 128 tested configs: arm64 allmodconfig gcc-14.2.0 arm64 allnoconfig gcc-14.2.0 arm64 defconfig gcc-14.2.0 arm64 randconfig-001-20250415 gcc-11.5.0 arm64 randconfig-002-20250415 gcc-7.5.0 arm64 randconfig-003-20250415 gcc-9.5.0 arm64 randconfig-004-20250415 gcc-9.5.0 x86_64 allnoconfig clang-20 x86_64 allyesconfig clang-20 x86_64 buildonly-randconfig-001-20250415 clang-20 x86_64 buildonly-randconfig-002-20250415 gcc-11 x86_64 buildonly-randconfig-003-20250415 gcc-12 x86_64 buildonly-randconfig-004-20250415 clang-20 x86_64 buildonly-randconfig-005-20250415 clang-20 x86_64 buildonly-randconfig-006-20250415 gcc-12 x86_64 defconfig gcc-11 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki

1 0

[openeuler:openEuler-1.0-LTS 1571/1571] block/blk-mq-debugfs.o: warning: objtool: debugfs_rq_show()+0xdf: unreachable instruction
by kernel test robot 16 Apr '25

16 Apr '25

tree: https://gitee.com/openeuler/kernel.git openEuler-1.0-LTS head: d47443532b562cff105f8cfbc32343f83a2ecd01 commit: ad4d7c466e2520aed18679d442b1a16f33b372b8 [1571/1571] blk-mq-debugfs: factor out a new helper to show allocated request config: x86_64-buildonly-randconfig-006-20250408 (https://download.01.org/0day-ci/archive/20250416/202504162155.YWQMdqiA-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/20250416/202504162155.YWQMdqiA-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/202504162155.YWQMdqiA-lkp@intel.com/ All warnings (new ones prefixed by >>): >> block/blk-mq-debugfs.o: warning: objtool: debugfs_rq_show()+0xdf: unreachable instruction -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki

1 0

[openeuler:openEuler-1.0-LTS 1582/1582] fs/gfs2/rgrp.o: warning: objtool: __rs_deltree()+0x188: unreachable instruction
by kernel test robot 16 Apr '25

16 Apr '25

tree: https://gitee.com/openeuler/kernel.git openEuler-1.0-LTS head: d47443532b562cff105f8cfbc32343f83a2ecd01 commit: 27f3c5bc01e9836a87061de4ea01fa3754a40274 [1582/1582] gfs2: Fix marking bitmaps non-full config: x86_64-buildonly-randconfig-005-20250415 (https://download.01.org/0day-ci/archive/20250416/202504162035.XTrGjsOi-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/20250416/202504162035.XTrGjsOi-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/202504162035.XTrGjsOi-lkp@intel.com/ All warnings (new ones prefixed by >>): fs/gfs2/rgrp.c:1288:25: warning: use of bitwise '|' with boolean operands [-Wbitwise-instead-of-logical] 1288 | int demote_requested = test_bit(GLF_DEMOTE, &gh->gh_gl->gl_flags) | | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ | || 1289 | test_bit(GLF_PENDING_DEMOTE, &gh->gh_gl->gl_flags); | ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ arch/x86/include/asm/bitops.h:342:2: note: expanded from macro 'test_bit' 342 | (__builtin_constant_p((nr)) \ | ^ fs/gfs2/rgrp.c:1288:25: note: cast one or both operands to int to silence this warning arch/x86/include/asm/bitops.h:342:2: note: expanded from macro 'test_bit' 342 | (__builtin_constant_p((nr)) \ | ^ 1 warning generated. fs/gfs2/rgrp.c:1517: warning: Function parameter or member 'rs' not described in 'rgd_free' fs/gfs2/rgrp.c:1992: warning: Function parameter or member 'rgd' not described in 'fast_to_acquire' >> fs/gfs2/rgrp.o: warning: objtool: __rs_deltree()+0x188: unreachable instruction -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki

1 0

[PATCH OLK-5.10] bnxt: Do not read past the end of test names
by Liu Chuang 16 Apr '25

16 Apr '25

From: Kees Cook <keescook(a)chromium.org> mainline inclusion from mainline-v6.2-rc5 commit d3e599c090fc6977331150c5f0a69ab8ce87da21 category: bugfix bugzilla: https://gitee.com/src-openeuler/kernel/issues/IBWVYG CVE: CVE-2023-53010 Reference: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?… ---------------------- Test names were being concatenated based on a offset beyond the end of the first name, which tripped the buffer overflow detection logic: detected buffer overflow in strnlen [...] Call Trace: bnxt_ethtool_init.cold+0x18/0x18 Refactor struct hwrm_selftest_qlist_output to use an actual array, and adjust the concatenation to use snprintf() rather than a series of strncat() calls. Reported-by: Niklas Cassel <Niklas.Cassel(a)wdc.com> Link: https://lore.kernel.org/lkml/Y8F%2F1w1AZTvLglFX@x1-carbon/ Tested-by: Niklas Cassel <Niklas.Cassel(a)wdc.com> Fixes: eb51365846bc ("bnxt_en: Add basic ethtool -t selftest support.") Cc: Michael Chan <michael.chan(a)broadcom.com> Cc: "David S. Miller" <davem(a)davemloft.net> Cc: Eric Dumazet <edumazet(a)google.com> Cc: Jakub Kicinski <kuba(a)kernel.org> Cc: Paolo Abeni <pabeni(a)redhat.com> Cc: netdev(a)vger.kernel.org Signed-off-by: Kees Cook <keescook(a)chromium.org> Reviewed-by: Michael Chan <michael.chan(a)broadcom.com> Reviewed-by: Niklas Cassel <niklas.cassel(a)wdc.com> Signed-off-by: David S. Miller <davem(a)davemloft.net> Conflicts: drivers/net/ethernet/broadcom/bnxt/bnxt_ethtool.c [Conflicts due to context difference.] Signed-off-by: Liu Chuang <liuchuang40(a)huawei.com> --- drivers/net/ethernet/broadcom/bnxt/bnxt_ethtool.c | 13 ++++--------- drivers/net/ethernet/broadcom/bnxt/bnxt_hsi.h | 9 +-------- 2 files changed, 5 insertions(+), 17 deletions(-) diff --git a/drivers/net/ethernet/broadcom/bnxt/bnxt_ethtool.c b/drivers/net/ethernet/broadcom/bnxt/bnxt_ethtool.c index eacc39140d9f..2836f0ee1491 100644 --- a/drivers/net/ethernet/broadcom/bnxt/bnxt_ethtool.c +++ b/drivers/net/ethernet/broadcom/bnxt/bnxt_ethtool.c @@ -3885,7 +3885,7 @@ void bnxt_ethtool_init(struct bnxt *bp) test_info->timeout = HWRM_CMD_TIMEOUT; for (i = 0; i < bp->num_tests; i++) { char *str = test_info->string[i]; - char *fw_str = resp->test0_name + i * 32; + char *fw_str = resp->test_name[i]; if (i == BNXT_MACLPBK_TEST_IDX) { strcpy(str, "Mac loopback test (offline)"); @@ -3896,14 +3896,9 @@ void bnxt_ethtool_init(struct bnxt *bp) } else if (i == BNXT_IRQ_TEST_IDX) { strcpy(str, "Interrupt_test (offline)"); } else { - strlcpy(str, fw_str, ETH_GSTRING_LEN); - strncat(str, " test", ETH_GSTRING_LEN - strlen(str)); - if (test_info->offline_mask & (1 << i)) - strncat(str, " (offline)", - ETH_GSTRING_LEN - strlen(str)); - else - strncat(str, " (online)", - ETH_GSTRING_LEN - strlen(str)); + snprintf(str, ETH_GSTRING_LEN, "%s test (%s)", + fw_str, test_info->offline_mask & (1 << i) ? + "offline" : "online"); } } diff --git a/drivers/net/ethernet/broadcom/bnxt/bnxt_hsi.h b/drivers/net/ethernet/broadcom/bnxt/bnxt_hsi.h index 2d3e962bdac3..fb8952f92df7 100644 --- a/drivers/net/ethernet/broadcom/bnxt/bnxt_hsi.h +++ b/drivers/net/ethernet/broadcom/bnxt/bnxt_hsi.h @@ -8543,14 +8543,7 @@ struct hwrm_selftest_qlist_output { u8 unused_0; __le16 test_timeout; u8 unused_1[2]; - char test0_name[32]; - char test1_name[32]; - char test2_name[32]; - char test3_name[32]; - char test4_name[32]; - char test5_name[32]; - char test6_name[32]; - char test7_name[32]; + char test_name[8][32]; u8 eyescope_target_BER_support; #define SELFTEST_QLIST_RESP_EYESCOPE_TARGET_BER_SUPPORT_BER_1E8_SUPPORTED 0x0UL #define SELFTEST_QLIST_RESP_EYESCOPE_TARGET_BER_SUPPORT_BER_1E9_SUPPORTED 0x1UL -- 2.34.1

2 1

[PATCH OLK-5.10] ftrace: Avoid potential division by zero in function_stat_show()
by Liu Chuang 16 Apr '25

16 Apr '25

From: Nikolay Kuratov <kniv(a)yandex-team.ru> stable inclusion from stable-v5.10.235 commit ca381f60a3bb7cfaa618d73ca411610bd7fc3149 category: bugfix bugzilla: 189268 Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id… -------------------------------- commit a1a7eb89ca0b89dc1c326eeee2596f263291aca3 upstream. Check whether denominator expression x * (x - 1) * 1000 mod {2^32, 2^64} produce zero and skip stddev computation in that case. For now don't care about rec->counter * rec->counter overflow because rec->time * rec->time overflow will likely happen earlier. Cc: stable(a)vger.kernel.org Cc: Wen Yang <wenyang(a)linux.alibaba.com> Cc: Mark Rutland <mark.rutland(a)arm.com> Cc: Mathieu Desnoyers <mathieu.desnoyers(a)efficios.com> Link: https://lore.kernel.org/20250206090156.1561783-1-kniv@yandex-team.ru Fixes: e31f7939c1c27 ("ftrace: Avoid potential division by zero in function profiler") Signed-off-by: Nikolay Kuratov <kniv(a)yandex-team.ru> Signed-off-by: Steven Rostedt (Google) <rostedt(a)goodmis.org> Signed-off-by: Greg Kroah-Hartman <gregkh(a)linuxfoundation.org> Signed-off-by: Wang Hai <wanghai38(a)huawei.com> --- kernel/trace/ftrace.c | 27 ++++++++++++--------------- 1 file changed, 12 insertions(+), 15 deletions(-) diff --git a/kernel/trace/ftrace.c b/kernel/trace/ftrace.c index 923d78cc130c..095ba8ab36cf 100644 --- a/kernel/trace/ftrace.c +++ b/kernel/trace/ftrace.c @@ -510,6 +510,7 @@ static int function_stat_show(struct seq_file *m, void *v) static struct trace_seq s; unsigned long long avg; unsigned long long stddev; + unsigned long long stddev_denom; #endif mutex_lock(&ftrace_profile_lock); @@ -531,23 +532,19 @@ static int function_stat_show(struct seq_file *m, void *v) #ifdef CONFIG_FUNCTION_GRAPH_TRACER seq_puts(m, " "); - /* Sample standard deviation (s^2) */ - if (rec->counter <= 1) - stddev = 0; - else { - /* - * Apply Welford's method: - * s^2 = 1 / (n * (n-1)) * (n * \Sum (x_i)^2 - (\Sum x_i)^2) - */ + /* + * Variance formula: + * s^2 = 1 / (n * (n-1)) * (n * \Sum (x_i)^2 - (\Sum x_i)^2) + * Maybe Welford's method is better here? + * Divide only by 1000 for ns^2 -> us^2 conversion. + * trace_print_graph_duration will divide by 1000 again. + */ + stddev = 0; + stddev_denom = rec->counter * (rec->counter - 1) * 1000; + if (stddev_denom) { stddev = rec->counter * rec->time_squared - rec->time * rec->time; - - /* - * Divide only 1000 for ns^2 -> us^2 conversion. - * trace_print_graph_duration will divide 1000 again. - */ - stddev = div64_ul(stddev, - rec->counter * (rec->counter - 1) * 1000); + stddev = div64_ul(stddev, stddev_denom); } trace_seq_init(&s); -- 2.34.1

2 1

[openeuler:OLK-5.10 2862/2862] mm/page_alloc.o: warning: objtool: __drain_all_pages()+0x87: unreachable instruction
by kernel test robot 16 Apr '25

16 Apr '25

Hi Vlastimil, FYI, the error/warning still remains. tree: https://gitee.com/openeuler/kernel.git OLK-5.10 head: 2affea8965688b8231cf977864ba7539320d5db8 commit: e037ee4a8deaff7c579618c0aba1f066d6d14b11 [2862/2862] mm, page_alloc: disable pcplists during memory offline config: x86_64-buildonly-randconfig-005-20250415 (https://download.01.org/0day-ci/archive/20250416/202504161818.Kxnq1s4P-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/20250416/202504161818.Kxnq1s4P-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/202504161818.Kxnq1s4P-lkp@intel.com/ All warnings (new ones prefixed by >>): >> mm/page_alloc.o: warning: objtool: __drain_all_pages()+0x87: unreachable instruction -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki

1 0

[openeuler:OLK-5.10] BUILD REGRESSION 2affea8965688b8231cf977864ba7539320d5db8
by kernel test robot 16 Apr '25

16 Apr '25

tree/branch: https://gitee.com/openeuler/kernel.git OLK-5.10 branch HEAD: 2affea8965688b8231cf977864ba7539320d5db8 !15841 HID: intel-ish-hid: Fix use-after-free issue in ishtp_hid_remove() Error/Warning (recently discovered and may have been fixed): https://lore.kernel.org/oe-kbuild-all/202503171920.f4jVchcy-lkp@intel.com https://lore.kernel.org/oe-kbuild-all/202503220351.uj1q69QX-lkp@intel.com https://lore.kernel.org/oe-kbuild-all/202503220607.nbhzXKry-lkp@intel.com https://lore.kernel.org/oe-kbuild-all/202503260613.Q2n0VF4Y-lkp@intel.com https://lore.kernel.org/oe-kbuild-all/202503260949.1ZCW1y7H-lkp@intel.com https://lore.kernel.org/oe-kbuild-all/202504030550.AkZJTxTF-lkp@intel.com ../lib/gcc/aarch64-linux/5.5.0/plugin/include/config/elfos.h:102:21: warning: invalid suffix on literal; C++11 requires a space between literal and string macro [-Wliteral-suffix] ../lib/gcc/aarch64-linux/5.5.0/plugin/include/defaults.h:126:24: warning: invalid suffix on literal; C++11 requires a space between literal and string macro [-Wliteral-suffix] ../lib/gcc/aarch64-linux/5.5.0/plugin/include/gimple.h:2556:18: error: 'is_gimple_reg' was not declared in this scope; did you mean 'is_gimple_assign'? ../lib/gcc/aarch64-linux/5.5.0/plugin/include/gimple.h:2790:10: error: 'gimple_call_addr_fndecl' was not declared in this scope; did you mean 'gimple_call_set_fndecl'? ../lib/gcc/aarch64-linux/5.5.0/plugin/include/gimple.h:283:22: error: field 'call_used' has incomplete type 'pt_solution' ../lib/gcc/aarch64-linux/5.5.0/plugin/include/gimple.h:284:22: error: field 'call_clobbered' has incomplete type 'pt_solution' block/bio.o: warning: objtool: bvec_alloc()+0xc4: unreachable instruction block/blk-mq.o: warning: objtool: blk_mq_unquiesce_queue()+0xbc: unreachable instruction block/bounce.o: warning: objtool: __bounce_end_io_read()+0x27d: unreachable instruction drivers/dma/idxd/perfmon.o: warning: objtool: perfmon_init()+0x76: unreachable instruction drivers/dma/ioat/init.o: warning: objtool: ioat3_dma_probe()+0x479: unreachable instruction drivers/md/dm-verity-target.o: warning: objtool: verity_for_bv_block()+0x222: unreachable instruction drivers/scsi/linkdata/ps3stor/./linux/ps3_driver_log.c:41:19: error: unused function 'time_for_log' [-Werror,-Wunused-function] drivers/scsi/linkdata/ps3stor/./linux/ps3_driver_log.c:65:19: error: unused function 'time_for_file_name' [-Werror,-Wunused-function] drivers/scsi/linkdata/ps3stor/ps3_irq.c:22:27: error: unused variable 'PS3_INTERRUPT_CMD_DISABLE_ALL_MASK' [-Werror,-Wunused-const-variable] drivers/scsi/linkdata/ps3stor/ps3_irq.c:23:27: error: unused variable 'PS3_INTERRUPT_CMD_ENABLE_MSIX' [-Werror,-Wunused-const-variable] drivers/scsi/linkdata/ps3stor/ps3_irq.c:24:27: error: unused variable 'PS3_INTERRUPT_MASK_DISABLE' [-Werror,-Wunused-const-variable] drivers/scsi/linkdata/ps3stor/ps3_irq.c:25:27: error: unused variable 'PS3_INTERRUPT_STATUS_EXIST_IRQ' [-Werror,-Wunused-const-variable] drivers/scsi/linkdata/ps3stor/ps3_irq.c:26:27: error: unused variable 'PS3_INTERRUPT_CLEAR_IRQ' [-Werror,-Wunused-const-variable] drivers/scsi/linkdata/ps3stor/ps3_irq.c:28:27: error: unused variable 'PS3_SSD_IOPS_MSIX_VECTORS' [-Werror,-Wunused-const-variable] drivers/scsi/linkdata/ps3stor/ps3_irq.c:29:27: error: unused variable 'PS3_HDD_IOPS_MSIX_VECTORS' [-Werror,-Wunused-const-variable] drivers/scsi/linkdata/ps3stor/ps3_qos.c:3024:6: error: no previous prototype for function 'ps3_hba_qos_waitq_poll' [-Werror,-Wmissing-prototypes] drivers/scsi/linkdata/ps3stor/ps3_qos.c:3280:15: error: no previous prototype for function 'ps3_raid_qos_decision' [-Werror,-Wmissing-prototypes] drivers/scsi/linkdata/ps3stor/ps3_qos.c:3335:6: error: no previous prototype for function 'ps3_qos_mgrq_resend' [-Werror,-Wmissing-prototypes] drivers/scsi/linkdata/ps3stor/ps3_qos.c:3479:6: error: no previous prototype for function 'ps3_raid_qos_waitq_notify' [-Werror,-Wmissing-prototypes] drivers/scsi/linkdata/ps3stor/ps3_qos.c:3822:15: error: no previous prototype for function 'ps3_raid_qos_waitq_abort' [-Werror,-Wmissing-prototypes] drivers/scsi/linkdata/ps3stor/ps3_scsih.c:1959:1: error: unused function 'ps3_scsih_dev_id_get' [-Werror,-Wunused-function] io_uring/io_uring.o: warning: objtool: __io_uring_free()+0x5b: unreachable instruction kismet: WARNING: unmet direct dependencies detected for CPPC_CPUFREQ_SYSFS_INTERFACE when selected by CPU_FREQ_GOV_SEEP ld.lld: error: version script assignment of 'LINUX_2.6' to symbol '__vdso_sgx_enter_enclave' failed: symbol not defined llvm-objcopy: error: 'arch/x86/entry/vdso/vdso64.so.dbg': No such file or directory llvm-objdump: error: 'arch/x86/entry/vdso/vdso64.so.dbg': No such file or directory mm/memory.o: warning: objtool: remap_pfn_range()+0x5b: unreachable instruction mm/mremap.o: warning: objtool: move_pgt_entry()+0xc8: unreachable instruction mm/slab_common.o: warning: objtool: kmalloc_slab()+0x68: unreachable instruction net/sched/sch_choke.o: warning: objtool: choke_enqueue()+0x477: unreachable instruction Unverified Error/Warning (likely false positive, kindly check if interested): drivers/gpu/drm/amd/amdgpu/dce_v10_0.o: warning: objtool: dce_v10_0_bandwidth_update() falls through to next function dce_v10_0_vblank_get_counter() drivers/gpu/drm/amd/amdgpu/dce_v11_0.o: warning: objtool: dce_v11_0_bandwidth_update() falls through to next function dce_v11_0_vblank_get_counter() drivers/gpu/drm/amd/amdgpu/dce_v6_0.o: warning: objtool: dce_v6_0_program_watermarks() falls through to next function dce_v6_0_latency_watermark() drivers/gpu/drm/amd/amdgpu/dce_v8_0.o: warning: objtool: dce_v8_0_bandwidth_update() falls through to next function dce_v8_0_vblank_get_counter() drivers/gpu/drm/radeon/cik.o: warning: objtool: dce8_bandwidth_update() falls through to next function cik_get_gpu_clock_counter() drivers/gpu/drm/radeon/evergreen.o: warning: objtool: evergreen_program_watermarks() falls through to next function evergreen_mc_wait_for_idle() drivers/gpu/drm/radeon/si.o: warning: objtool: dce6_program_watermarks() falls through to next function si_fence_ring_emit() drivers/media/test-drivers/vivid/vivid-kthread-cap.o: warning: objtool: vivid_thread_vid_cap_tick() falls through to next function plane_vaddr() drivers/misc/bh1770glc.o: warning: objtool: bh1770_power_state_store() falls through to next function asan.module_ctor() drivers/net/wireless/ath/ath9k/antenna.o: warning: objtool: ath_ant_comb_scan() falls through to next function asan.module_ctor() drivers/nvdimm/namespace_devs.o: warning: objtool: size_store() falls through to next function nd_namespace_label_update() drivers/target/target_core_user.o: warning: objtool: queue_cmd_ring() falls through to next function scatter_data_area() fs/btrfs/free-space-cache.o: warning: objtool: add_bytes_to_bitmap() falls through to next function recalculate_thresholds() fs/btrfs/free-space-cache.o: warning: objtool: btrfs_alloc_from_cluster() falls through to next function btrfs_find_space_cluster() fs/btrfs/free-space-cache.o: warning: objtool: setup_cluster_bitmap() falls through to next function btrfs_init_free_cluster() fs/btrfs/free-space-cache.o: warning: objtool: steal_from_bitmap() falls through to next function link_free_space() fs/btrfs/free-space-tree.o: warning: objtool: modify_free_space_bitmap() falls through to next function free_space_test_bit() fs/btrfs/free-space-tree.o: warning: objtool: update_free_space_extent_count() falls through to next function add_new_free_space_info() fs/ufs/ialloc.o: warning: objtool: ufs_new_inode() falls through to next function ufs2_init_inodes_chunk() fs/ufs/inode.o: warning: objtool: ufs_iget() falls through to next function ufs_set_inode_ops() mm/vmscan.o: warning: objtool: do_shrink_slab() falls through to next function allow_direct_reclaim() Error/Warning ids grouped by kconfigs: recent_errors |-- arm64-allnoconfig | `-- kismet:WARNING:unmet-direct-dependencies-detected-for-CPPC_CPUFREQ_SYSFS_INTERFACE-when-selected-by-CPU_FREQ_GOV_SEEP |-- arm64-randconfig-002-20250321 | |-- lib-gcc-aarch64-linux-..-plugin-include-config-elfos.h:warning:invalid-suffix-on-literal-C-requires-a-space-between-literal-and-string-macro | |-- lib-gcc-aarch64-linux-..-plugin-include-defaults.h:warning:invalid-suffix-on-literal-C-requires-a-space-between-literal-and-string-macro | |-- lib-gcc-aarch64-linux-..-plugin-include-gimple.h:error:field-call_clobbered-has-incomplete-type-pt_solution | |-- lib-gcc-aarch64-linux-..-plugin-include-gimple.h:error:field-call_used-has-incomplete-type-pt_solution | |-- lib-gcc-aarch64-linux-..-plugin-include-gimple.h:error:gimple_call_addr_fndecl-was-not-declared-in-this-scope | `-- lib-gcc-aarch64-linux-..-plugin-include-gimple.h:error:is_gimple_reg-was-not-declared-in-this-scope |-- x86_64-allnoconfig | |-- ld.lld:error:version-script-assignment-of-LINUX_2.-to-symbol-__vdso_sgx_enter_enclave-failed:symbol-not-defined | |-- llvm-objcopy:error:arch-x86-entry-vdso-vdso64.so.dbg:No-such-file-or-directory | `-- llvm-objdump:error:arch-x86-entry-vdso-vdso64.so.dbg:No-such-file-or-directory |-- x86_64-allyesconfig | |-- drivers-scsi-linkdata-ps3stor-.-linux-ps3_driver_log.c:error:unused-function-time_for_file_name-Werror-Wunused-function | |-- drivers-scsi-linkdata-ps3stor-.-linux-ps3_driver_log.c:error:unused-function-time_for_log-Werror-Wunused-function | |-- drivers-scsi-linkdata-ps3stor-ps3_irq.c:error:unused-variable-PS3_HDD_IOPS_MSIX_VECTORS-Werror-Wunused-const-variable | |-- drivers-scsi-linkdata-ps3stor-ps3_irq.c:error:unused-variable-PS3_INTERRUPT_CLEAR_IRQ-Werror-Wunused-const-variable | |-- drivers-scsi-linkdata-ps3stor-ps3_irq.c:error:unused-variable-PS3_INTERRUPT_CMD_DISABLE_ALL_MASK-Werror-Wunused-const-variable | |-- drivers-scsi-linkdata-ps3stor-ps3_irq.c:error:unused-variable-PS3_INTERRUPT_CMD_ENABLE_MSIX-Werror-Wunused-const-variable | |-- drivers-scsi-linkdata-ps3stor-ps3_irq.c:error:unused-variable-PS3_INTERRUPT_MASK_DISABLE-Werror-Wunused-const-variable | |-- drivers-scsi-linkdata-ps3stor-ps3_irq.c:error:unused-variable-PS3_INTERRUPT_STATUS_EXIST_IRQ-Werror-Wunused-const-variable | |-- drivers-scsi-linkdata-ps3stor-ps3_irq.c:error:unused-variable-PS3_SSD_IOPS_MSIX_VECTORS-Werror-Wunused-const-variable | |-- drivers-scsi-linkdata-ps3stor-ps3_qos.c:error:no-previous-prototype-for-function-ps3_hba_qos_waitq_poll-Werror-Wmissing-prototypes | |-- drivers-scsi-linkdata-ps3stor-ps3_qos.c:error:no-previous-prototype-for-function-ps3_qos_mgrq_resend-Werror-Wmissing-prototypes | |-- drivers-scsi-linkdata-ps3stor-ps3_qos.c:error:no-previous-prototype-for-function-ps3_raid_qos_decision-Werror-Wmissing-prototypes | |-- drivers-scsi-linkdata-ps3stor-ps3_qos.c:error:no-previous-prototype-for-function-ps3_raid_qos_waitq_abort-Werror-Wmissing-prototypes | |-- drivers-scsi-linkdata-ps3stor-ps3_qos.c:error:no-previous-prototype-for-function-ps3_raid_qos_waitq_notify-Werror-Wmissing-prototypes | `-- drivers-scsi-linkdata-ps3stor-ps3_scsih.c:error:unused-function-ps3_scsih_dev_id_get-Werror-Wunused-function |-- x86_64-buildonly-randconfig-001-20250415 | |-- ld.lld:error:version-script-assignment-of-LINUX_2.-to-symbol-__vdso_sgx_enter_enclave-failed:symbol-not-defined | |-- llvm-objcopy:error:arch-x86-entry-vdso-vdso64.so.dbg:No-such-file-or-directory | `-- llvm-objdump:error:arch-x86-entry-vdso-vdso64.so.dbg:No-such-file-or-directory |-- x86_64-buildonly-randconfig-005-20250415 | |-- block-bio.o:warning:objtool:bvec_alloc:unreachable-instruction | |-- block-blk-mq.o:warning:objtool:blk_mq_unquiesce_queue:unreachable-instruction | |-- block-bounce.o:warning:objtool:__bounce_end_io_read:unreachable-instruction | |-- drivers-dma-idxd-perfmon.o:warning:objtool:perfmon_init:unreachable-instruction | |-- drivers-dma-ioat-init.o:warning:objtool:ioat3_dma_probe:unreachable-instruction | |-- drivers-md-dm-verity-target.o:warning:objtool:verity_for_bv_block:unreachable-instruction | |-- io_uring-io_uring.o:warning:objtool:__io_uring_free:unreachable-instruction | |-- mm-memory.o:warning:objtool:remap_pfn_range:unreachable-instruction | |-- mm-mremap.o:warning:objtool:move_pgt_entry:unreachable-instruction | |-- mm-slab_common.o:warning:objtool:kmalloc_slab:unreachable-instruction | `-- net-sched-sch_choke.o:warning:objtool:choke_enqueue:unreachable-instruction |-- x86_64-randconfig-101-20250416 | |-- drivers-nvdimm-namespace_devs.o:warning:objtool:size_store-falls-through-to-next-function-nd_namespace_label_update() | |-- fs-btrfs-free-space-cache.o:warning:objtool:add_bytes_to_bitmap-falls-through-to-next-function-recalculate_thresholds() | |-- fs-btrfs-free-space-cache.o:warning:objtool:btrfs_alloc_from_cluster-falls-through-to-next-function-btrfs_find_space_cluster() | |-- fs-btrfs-free-space-cache.o:warning:objtool:setup_cluster_bitmap-falls-through-to-next-function-btrfs_init_free_cluster() | |-- fs-btrfs-free-space-cache.o:warning:objtool:steal_from_bitmap-falls-through-to-next-function-link_free_space() | |-- fs-btrfs-free-space-tree.o:warning:objtool:modify_free_space_bitmap-falls-through-to-next-function-free_space_test_bit() | |-- fs-btrfs-free-space-tree.o:warning:objtool:update_free_space_extent_count-falls-through-to-next-function-add_new_free_space_info() | |-- fs-ufs-ialloc.o:warning:objtool:ufs_new_inode-falls-through-to-next-function-ufs2_init_inodes_chunk() | |-- fs-ufs-inode.o:warning:objtool:ufs_iget-falls-through-to-next-function-ufs_set_inode_ops() | |-- ld.lld:error:version-script-assignment-of-LINUX_2.-to-symbol-__vdso_sgx_enter_enclave-failed:symbol-not-defined | |-- llvm-objcopy:error:arch-x86-entry-vdso-vdso64.so.dbg:No-such-file-or-directory | `-- llvm-objdump:error:arch-x86-entry-vdso-vdso64.so.dbg:No-such-file-or-directory |-- x86_64-randconfig-103-20250416 | |-- drivers-media-test-drivers-vivid-vivid-kthread-cap.o:warning:objtool:vivid_thread_vid_cap_tick-falls-through-to-next-function-plane_vaddr() | |-- drivers-net-wireless-ath-ath9k-antenna.o:warning:objtool:ath_ant_comb_scan-falls-through-to-next-function-asanmodule_ctor() | |-- ld.lld:error:version-script-assignment-of-LINUX_2.-to-symbol-__vdso_sgx_enter_enclave-failed:symbol-not-defined | |-- llvm-objcopy:error:arch-x86-entry-vdso-vdso64.so.dbg:No-such-file-or-directory | |-- llvm-objdump:error:arch-x86-entry-vdso-vdso64.so.dbg:No-such-file-or-directory | `-- mm-vmscan.o:warning:objtool:do_shrink_slab-falls-through-to-next-function-allow_direct_reclaim() |-- x86_64-randconfig-121-20250415 | `-- drivers-target-target_core_user.o:warning:objtool:queue_cmd_ring-falls-through-to-next-function-scatter_data_area() `-- x86_64-randconfig-r113-20250416 |-- drivers-gpu-drm-amd-amdgpu-dce_v10_0.o:warning:objtool:dce_v10_0_bandwidth_update-falls-through-to-next-function-dce_v10_0_vblank_get_counter() |-- drivers-gpu-drm-amd-amdgpu-dce_v11_0.o:warning:objtool:dce_v11_0_bandwidth_update-falls-through-to-next-function-dce_v11_0_vblank_get_counter() |-- drivers-gpu-drm-amd-amdgpu-dce_v6_0.o:warning:objtool:dce_v6_0_program_watermarks-falls-through-to-next-function-dce_v6_0_latency_watermark() |-- drivers-gpu-drm-amd-amdgpu-dce_v8_0.o:warning:objtool:dce_v8_0_bandwidth_update-falls-through-to-next-function-dce_v8_0_vblank_get_counter() |-- drivers-gpu-drm-radeon-cik.o:warning:objtool:dce8_bandwidth_update-falls-through-to-next-function-cik_get_gpu_clock_counter() |-- drivers-gpu-drm-radeon-evergreen.o:warning:objtool:evergreen_program_watermarks-falls-through-to-next-function-evergreen_mc_wait_for_idle() |-- drivers-gpu-drm-radeon-si.o:warning:objtool:dce6_program_watermarks-falls-through-to-next-function-si_fence_ring_emit() |-- drivers-misc-bh1770glc.o:warning:objtool:bh1770_power_state_store-falls-through-to-next-function-asanmodule_ctor() |-- fs-btrfs-free-space-cache.o:warning:objtool:add_bytes_to_bitmap-falls-through-to-next-function-recalculate_thresholds() |-- fs-btrfs-free-space-cache.o:warning:objtool:btrfs_alloc_from_cluster-falls-through-to-next-function-btrfs_find_space_cluster() |-- fs-btrfs-free-space-cache.o:warning:objtool:setup_cluster_bitmap-falls-through-to-next-function-btrfs_init_free_cluster() |-- fs-btrfs-free-space-cache.o:warning:objtool:steal_from_bitmap-falls-through-to-next-function-link_free_space() |-- fs-btrfs-free-space-tree.o:warning:objtool:modify_free_space_bitmap-falls-through-to-next-function-free_space_test_bit() |-- fs-btrfs-free-space-tree.o:warning:objtool:update_free_space_extent_count-falls-through-to-next-function-add_new_free_space_info() |-- fs-ufs-ialloc.o:warning:objtool:ufs_new_inode-falls-through-to-next-function-ufs2_init_inodes_chunk() |-- fs-ufs-inode.o:warning:objtool:ufs_iget-falls-through-to-next-function-ufs_set_inode_ops() |-- ld.lld:error:version-script-assignment-of-LINUX_2.-to-symbol-__vdso_sgx_enter_enclave-failed:symbol-not-defined |-- llvm-objcopy:error:arch-x86-entry-vdso-vdso64.so.dbg:No-such-file-or-directory |-- llvm-objdump:error:arch-x86-entry-vdso-vdso64.so.dbg:No-such-file-or-directory `-- mm-vmscan.o:warning:objtool:do_shrink_slab-falls-through-to-next-function-allow_direct_reclaim() elapsed time: 1452m configs tested: 16 configs skipped: 128 tested configs: arm64 allmodconfig clang-19 arm64 allnoconfig gcc-14.2.0 arm64 defconfig gcc-14.2.0 arm64 randconfig-001-20250415 clang-16 arm64 randconfig-002-20250415 gcc-7.5.0 arm64 randconfig-003-20250415 gcc-9.5.0 arm64 randconfig-004-20250415 gcc-9.5.0 x86_64 allnoconfig clang-20 x86_64 allyesconfig clang-20 x86_64 buildonly-randconfig-001-20250415 clang-20 x86_64 buildonly-randconfig-002-20250415 gcc-11 x86_64 buildonly-randconfig-003-20250415 gcc-12 x86_64 buildonly-randconfig-004-20250415 clang-20 x86_64 buildonly-randconfig-005-20250415 clang-20 x86_64 buildonly-randconfig-006-20250415 gcc-12 x86_64 defconfig gcc-11 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki

1 0

[PATCH OLK-6.6 0/8] LoongArch: sync internal repository 20250414
by Hongchen Zhang 16 Apr '25

16 Apr '25

Ard Biesheuvel (1): objtool: Fix C jump table annotations for Clang Gao Qihang (1): LoongArch: Preserve firmware configuration if ACPI requires. Hongchen Zhang (1): LoongArch: configs: enable some configs Juxin Gao (1): LoongArch: configs: set CONFIG_UNWINDER_ORC=y Ming Wang (1): LoongArch: configs: Disable CONFIG_RT_GROUP_SCHED to prevent cgroup2 issues Tiezhu Yang (3): LoongArch: Handle fp, lsx, lasx and lbt assembly symbols LoongArch: Make some signal and ptrace functions non-static LoongArch: Export some signal functions arch/loongarch/configs/loongson3_defconfig | 14 ++++++-- arch/loongarch/include/asm/fpu.h | 6 ++++ arch/loongarch/include/asm/lbt.h | 4 +++ arch/loongarch/kernel/Makefile | 1 + arch/loongarch/kernel/extern.c | 31 ++++++++++++++++++ arch/loongarch/kernel/fpu.S | 6 ++++ arch/loongarch/kernel/lbt.S | 4 +++ arch/loongarch/kernel/ptrace.c | 37 +++++++++++++++------- arch/loongarch/kernel/signal.c | 28 +++------------- arch/loongarch/pci/acpi.c | 14 ++++++-- include/linux/compiler.h | 2 +- tools/objtool/check.c | 7 ++-- tools/objtool/include/objtool/special.h | 2 +- 13 files changed, 113 insertions(+), 43 deletions(-) create mode 100644 arch/loongarch/kernel/extern.c -- 2.33.0

2 9

[PATCH OLK-6.6 00/13] Add HPD, getting EDID, colorbar features in DP function
by Yongbang Shi 16 Apr '25

16 Apr '25

To support DP HPD, edid printing, and colorbar display features based on the Hisislcon DP devices. Arnd Bergmann (1): drm/hisilicon/hibmc: select CONFIG_DRM_DISPLAY_DP_HELPER Baihan Li (9): drm/hisilicon/hibmc: Restructuring the header dp_reg.h drm/hisilicon/hibmc: Add dp serdes cfg to adjust serdes rate, voltage and pre-emphasis drm/hisilicon/hibmc: Add dp serdes cfg in dp process drm/hisilicon/hibmc: Refactor the member of drm_aux in struct hibmc_dp drm/hisilicon/hibmc: Getting connector info and EDID by using AUX channel drm/hisilicon/hibmc: Add colorbar-cfg feature and its debugfs file drm/hisilicon/hibmc: Enable this hot plug detect of irq feature drm/hisilicon/hibmc: Add MSI irq getting and requesting for HPD drm/hisilicon/hibmc: Add vga connector detect functions Douglas Anderson (1): drm: Call drm_atomic_helper_shutdown() at shutdown time for misc drivers Thomas Zimmermann (1): drm/ast: Implement polling for VGA and SIL164 connectors Ville Syrjälä (1): drm/sysfs: Register "ddc" symlink later drivers/gpu/drm/drm_connector.c | 9 ++ drivers/gpu/drm/drm_internal.h | 2 + drivers/gpu/drm/drm_probe_helper.c | 29 ++++ drivers/gpu/drm/drm_sysfs.c | 22 ++- drivers/gpu/drm/hisilicon/hibmc/Kconfig | 2 + drivers/gpu/drm/hisilicon/hibmc/Makefile | 3 +- drivers/gpu/drm/hisilicon/hibmc/dp/dp_aux.c | 16 ++- drivers/gpu/drm/hisilicon/hibmc/dp/dp_comm.h | 10 +- .../gpu/drm/hisilicon/hibmc/dp/dp_config.h | 2 + drivers/gpu/drm/hisilicon/hibmc/dp/dp_hw.c | 91 +++++++++++- drivers/gpu/drm/hisilicon/hibmc/dp/dp_hw.h | 36 +++++ drivers/gpu/drm/hisilicon/hibmc/dp/dp_link.c | 90 +++++++++--- drivers/gpu/drm/hisilicon/hibmc/dp/dp_reg.h | 130 +++++++++++++----- .../gpu/drm/hisilicon/hibmc/dp/dp_serdes.c | 71 ++++++++++ .../drm/hisilicon/hibmc/hibmc_drm_debugfs.c | 104 ++++++++++++++ .../gpu/drm/hisilicon/hibmc/hibmc_drm_dp.c | 74 +++++++++- .../gpu/drm/hisilicon/hibmc/hibmc_drm_drv.c | 91 +++++++++--- .../gpu/drm/hisilicon/hibmc/hibmc_drm_drv.h | 12 ++ .../gpu/drm/hisilicon/hibmc/hibmc_drm_vdac.c | 3 + include/drm/drm_probe_helper.h | 4 + 20 files changed, 702 insertions(+), 99 deletions(-) create mode 100644 drivers/gpu/drm/hisilicon/hibmc/dp/dp_serdes.c create mode 100644 drivers/gpu/drm/hisilicon/hibmc/hibmc_drm_debugfs.c -- 2.33.0

2 14

[PATCH OLK-6.6 0/2] soc cache: Add support for HiSilicon L3 cache
by Yushan Wang 16 Apr '25

16 Apr '25

driver inclusion category: feature bugzilla: https://gitee.com/openeuler/kernel/issues/IC15TR ---------------------------------------------------------------------- This series adds support for HiSilicon SoC cache lockdown and cache maintenance operations. Cache lockdown feature prevents cache entries from being evicted from L3 cache. It can be enabled by calling mmap function to the file (`/dev/hisi_soc_cache_mgmt`). This feature is implemented in the driver hisi_soc_l3c. Cache maintenance feature, following Arm64's CHI spec[1], enables users to raise certain transactions to the memory residing in the cache. This can be achieved by calling ioctl function to the same file as above. This feature is implemented in the driver hisi_soc_hha. L3 cache and L3 cache PMU share the same memory resource, which makes one fails to probe while another is on board. Since both devices rely on distinct information exported by ACPI, their probing functions should be unrelated. Workaround the resource conflict check by replacing devm_ioremap_resource() to devm_ioremap() instead. [1] https://developer.arm.com/documentation/ihi0050/latest/ Yushan Wang (2): soc cache: Add framework driver for HiSilicon SoC cache soc cache: Support cache maintenance for HiSilicon SoC Hydra Home Agent drivers/soc/hisilicon/Kconfig | 22 + drivers/soc/hisilicon/Makefile | 3 + .../soc/hisilicon/hisi_soc_cache_framework.c | 381 ++++++++++++++++++ .../soc/hisilicon/hisi_soc_cache_framework.h | 77 ++++ drivers/soc/hisilicon/hisi_soc_hha.c | 188 +++++++++ .../uapi/misc/hisi_soc_cache/hisi_soc_cache.h | 35 ++ 6 files changed, 706 insertions(+) create mode 100644 drivers/soc/hisilicon/hisi_soc_cache_framework.c create mode 100644 drivers/soc/hisilicon/hisi_soc_cache_framework.h create mode 100644 drivers/soc/hisilicon/hisi_soc_hha.c create mode 100644 include/uapi/misc/hisi_soc_cache/hisi_soc_cache.h -- 2.33.0

2 3

[PATCH OLK-6.6 0/5] drm: LoongArch: fix rx550/gfx6/gfx7/gfx8 error
by Hongchen Zhang 16 Apr '25

16 Apr '25

Tianrui Zhao (3): drm/amdgpu: Fix pcie order dislocation drm/amdgpu: make duplicated EOP packet for GFX6 have real content drm/amdgpu: Fix RX550 pcie order dislocation. lvjianmin (2): drm/radeon: repeat the same EOP packet for EOP workaround on CIK drm/amdgpu: make duplicated EOP packet for GFX7/8 have real content drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c | 5 + drivers/gpu/drm/amd/amdgpu/amdgpu_ih.c | 159 ++++++++++++++++++++++++ drivers/gpu/drm/amd/amdgpu/amdgpu_ih.h | 6 + drivers/gpu/drm/amd/amdgpu/amdgpu_irq.c | 4 + drivers/gpu/drm/amd/amdgpu/amdgpu_irq.h | 3 + drivers/gpu/drm/amd/amdgpu/gfx_v6_0.c | 19 +++ drivers/gpu/drm/amd/amdgpu/gfx_v7_0.c | 13 +- drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c | 13 +- drivers/gpu/drm/radeon/cik.c | 9 +- 9 files changed, 216 insertions(+), 15 deletions(-) -- 2.33.0

2 6

[openeuler:openEuler-1.0-LTS 1571/1571] drivers/usb/typec/tps6598x.o: warning: objtool: tps6598x_probe()+0x1ed: can't find switch jump table
by kernel test robot 16 Apr '25

16 Apr '25

Hi Nikolaus, FYI, the error/warning still remains. tree: https://gitee.com/openeuler/kernel.git openEuler-1.0-LTS head: d47443532b562cff105f8cfbc32343f83a2ecd01 commit: 10379cc2b54aefd096d8f00b7e3bd25b3dc6632d [1571/1571] drivers/usb/typec/tps6598x.c: fix portinfo width config: x86_64-buildonly-randconfig-002-20250408 (https://download.01.org/0day-ci/archive/20250416/202504161537.Uan8Cvv1-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/20250416/202504161537.Uan8Cvv1-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/202504161537.Uan8Cvv1-lkp@intel.com/ All warnings (new ones prefixed by >>): >> drivers/usb/typec/tps6598x.o: warning: objtool: tps6598x_probe()+0x1ed: can't find switch jump table -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki

1 0

[PATCH OLK-6.6 0/2] soc cache: Add support for HiSilicon L3 cache
by Yushan Wang 16 Apr '25

16 Apr '25

driver inclusion category: feature bugzilla: https://gitee.com/openeuler/kernel/issues/IC15TR ---------------------------------------------------------------------- This series adds support for HiSilicon SoC cache lockdown and cache maintenance operations. Cache lockdown feature prevents cache entries from being evicted from L3 cache. It can be enabled by calling mmap function to the file (`/dev/hisi_soc_cache_mgmt`). This feature is implemented in the driver hisi_soc_l3c. Cache maintenance feature, following Arm64's CHI spec[1], enables users to raise certain transactions to the memory residing in the cache. This can be achieved by calling ioctl function to the same file as above. This feature is implemented in the driver hisi_soc_hha. L3 cache and L3 cache PMU share the same memory resource, which makes one fails to probe while another is on board. Since both devices rely on distinct information exported by ACPI, their probing functions should be unrelated. Workaround the resource conflict check by replacing devm_ioremap_resource() to devm_ioremap() instead. [1] https://developer.arm.com/documentation/ihi0050/latest/ Yushan Wang (2): soc cache: Add framework driver for HiSilicon SoC cache soc cache: Support cache maintenance for HiSilicon SoC Hydra Home Agent drivers/soc/hisilicon/Kconfig | 22 + drivers/soc/hisilicon/Makefile | 3 + .../soc/hisilicon/hisi_soc_cache_framework.c | 381 ++++++++++++++++++ .../soc/hisilicon/hisi_soc_cache_framework.h | 77 ++++ drivers/soc/hisilicon/hisi_soc_hha.c | 188 +++++++++ .../uapi/misc/hisi_soc_cache/hisi_soc_cache.h | 35 ++ 6 files changed, 706 insertions(+) create mode 100644 drivers/soc/hisilicon/hisi_soc_cache_framework.c create mode 100644 drivers/soc/hisilicon/hisi_soc_cache_framework.h create mode 100644 drivers/soc/hisilicon/hisi_soc_hha.c create mode 100644 include/uapi/misc/hisi_soc_cache/hisi_soc_cache.h -- 2.33.0

1 2

[PATCH v2 OLK-5.10] iommu/arm-smmu-v3: Fix the extra atc tlb flush
by Zhang Zekun 16 Apr '25

16 Apr '25

hulk inclusion category: bugfix bugzilla: https://gitee.com/openeuler/kernel/issues/IBZUQU ------------------------------------------- The tlb invalidation code for smmu pagetable prefetch problem might cause a extra tlb invalidation for atc. Prevent it from happening. Fixes: 2da3f6871b6e ("iommu/arm-smmu-v3: Reducing the CMD_SYNC times") Signed-off-by: Zhang Zekun <zhangzekun11(a)huawei.com> --- drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3.c | 7 ++++--- drivers/iommu/io-pgtable-arm.c | 8 +++++--- include/linux/io-pgtable.h | 1 + 3 files changed, 10 insertions(+), 6 deletions(-) diff --git a/drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3.c b/drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3.c index cedc1eda7250..090ccda84b46 100644 --- a/drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3.c +++ b/drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3.c @@ -2311,9 +2311,7 @@ static void arm_smmu_tlb_inv_walk(unsigned long iova, size_t size, size_t granule, void *cookie) { #ifdef CONFIG_HISILICON_ERRATUM_162100602 - struct arm_smmu_domain *smmu_domain = cookie; - - if (!size && smmu_domain->smmu->options & ARM_SMMU_OPT_SYNC_BATCH) { + if (!size) { arm_smmu_tlb_inv_range_domain(iova, granule, granule, true, cookie); return; } @@ -2584,6 +2582,9 @@ static int arm_smmu_domain_finalise(struct iommu_domain *domain, else if (smmu->features & ARM_SMMU_FEAT_BBML2) pgtbl_cfg.quirks |= IO_PGTABLE_QUIRK_ARM_BBML2; + if (smmu->options & ARM_SMMU_OPT_SYNC_BATCH) + pgtbl_cfg.quirks |= IO_PGTABLE_QUIRK_HISI_ERRATA; + pgtbl_ops = alloc_io_pgtable_ops(fmt, &pgtbl_cfg, smmu_domain); if (!pgtbl_ops) return -ENOMEM; diff --git a/drivers/iommu/io-pgtable-arm.c b/drivers/iommu/io-pgtable-arm.c index dc80f2661ff7..a4e75f0e4c23 100644 --- a/drivers/iommu/io-pgtable-arm.c +++ b/drivers/iommu/io-pgtable-arm.c @@ -365,7 +365,7 @@ static int __arm_lpae_map(struct arm_lpae_io_pgtable *data, unsigned long iova, if (pte) __arm_lpae_free_pages(cptep, tblsz, cfg); #ifdef CONFIG_HISILICON_ERRATUM_162100602 - if (lvl <= 2) + if (lvl <= 2 && (cfg->quirks & IO_PGTABLE_QUIRK_HISI_ERRATA)) io_pgtable_tlb_flush_walk(&data->iop, iova, 0, ARM_LPAE_GRANULE(data)); #endif } else if (!cfg->coherent_walk && !(pte & ARM_LPAE_PTE_SW_SYNC)) { @@ -1163,7 +1163,8 @@ arm_64_lpae_alloc_pgtable_s1(struct io_pgtable_cfg *cfg, void *cookie) IO_PGTABLE_QUIRK_ARM_TTBR1 | IO_PGTABLE_QUIRK_ARM_HD | IO_PGTABLE_QUIRK_ARM_BBML1 | - IO_PGTABLE_QUIRK_ARM_BBML2)) + IO_PGTABLE_QUIRK_ARM_BBML2 | + IO_PGTABLE_QUIRK_HISI_ERRATA)) return NULL; data = arm_lpae_alloc_pgtable(cfg); @@ -1263,7 +1264,8 @@ arm_64_lpae_alloc_pgtable_s2(struct io_pgtable_cfg *cfg, void *cookie) if (cfg->quirks & ~(IO_PGTABLE_QUIRK_NON_STRICT | IO_PGTABLE_QUIRK_ARM_HD | IO_PGTABLE_QUIRK_ARM_BBML1 | - IO_PGTABLE_QUIRK_ARM_BBML2)) + IO_PGTABLE_QUIRK_ARM_BBML2 | + IO_PGTABLE_QUIRK_HISI_ERRATA)) return NULL; data = arm_lpae_alloc_pgtable(cfg); diff --git a/include/linux/io-pgtable.h b/include/linux/io-pgtable.h index 27b994e42ec4..7fc863011474 100644 --- a/include/linux/io-pgtable.h +++ b/include/linux/io-pgtable.h @@ -100,6 +100,7 @@ struct io_pgtable_cfg { #define IO_PGTABLE_QUIRK_ARM_HD BIT(6) #define IO_PGTABLE_QUIRK_ARM_BBML1 BIT(7) #define IO_PGTABLE_QUIRK_ARM_BBML2 BIT(8) + #define IO_PGTABLE_QUIRK_HISI_ERRATA BIT(9) unsigned long quirks; unsigned long pgsize_bitmap; unsigned int ias; -- 2.22.0

2 1

[PATCH OLK-6.6 0/7] Updates for HiSilicon L3C PMU driver
by Yushan Wang 16 Apr '25

16 Apr '25

driver inclusion category: feature bugzilla: https://gitee.com/openeuler/kernel/issues/IC1F9Z CVE: NA ---------------------------------------------------------------------- Updates for HiSilicon L3C PMU driver. Yicong Yang (7): drivers/perf: hisi: Relax the event ID check in the framework drivers/perf: hisi: Export hisi_uncore_pmu_isr() drivers/perf: hisi: Simplify the probe process of each L3C PMU version drivers/perf: hisi: Extract the event filter check of L3C PMU drivers/perf: hisi: Extend the field of tt_core drivers/perf: hisi: Refactor the event configuration of L3C PMU drivers/perf: hisi: Add support for L3C PMU v3 drivers/perf/hisilicon/hisi_uncore_l3c_pmu.c | 529 ++++++++++++++++--- drivers/perf/hisilicon/hisi_uncore_pmu.c | 5 +- drivers/perf/hisilicon/hisi_uncore_pmu.h | 4 +- 3 files changed, 450 insertions(+), 88 deletions(-) -- 2.33.0

2 8

[PATCH OLK-6.6 0/7] Updates for HiSilicon L3C PMU driver
by Yushan Wang 16 Apr '25

16 Apr '25

driver inclusion category: feature bugzilla: https://gitee.com/openeuler/kernel/issues/IC1F9Z CVE: NA ---------------------------------------------------------------------- Updates for HiSilicon L3C PMU driver. Yicong Yang (7): drivers/perf: hisi: Relax the event ID check in the framework drivers/perf: hisi: Export hisi_uncore_pmu_isr() drivers/perf: hisi: Simplify the probe process of each L3C PMU version drivers/perf: hisi: Extract the event filter check of L3C PMU drivers/perf: hisi: Extend the field of tt_core drivers/perf: hisi: Refactor the event configuration of L3C PMU drivers/perf: hisi: Add support for L3C PMU v3 drivers/perf/hisilicon/hisi_uncore_l3c_pmu.c | 529 ++++++++++++++++--- drivers/perf/hisilicon/hisi_uncore_pmu.c | 5 +- drivers/perf/hisilicon/hisi_uncore_pmu.h | 4 +- 3 files changed, 450 insertions(+), 88 deletions(-) -- 2.33.0

2 8

[PATCH OLK-6.6 v2 00/17] fs/resctrl: Introduce the resctrl_feat_type
by Zeng Heng 16 Apr '25

16 Apr '25

Zeng Heng (17): arm64/mpam: fix memleak in resctrl_arch_mon_ctx_alloc_no_wait() arm64/mpam: fix impossible condition in get_cpumask_from_cache_id() arm64/mpam: fix impossible condition in resctrl_arch_rmid_read() arm64/mpam: Optimize CSU/MBWU monitor multiplexing fs/resctrl: Determine whether the MBM monitors require overflow checking arm64/mpam: Set the cpbm width of msc class with the minimum arm64/mpam: Correct the judgment condition of the CMAX feature fs/resctrl: Fix kmemleak caused by closid_init() fs/resctrl: Introduce the resctrl_feat_type fs/resctrl: Add mbw_min and cmin features arm64/mpam: Add PRIO feature arm64/mpam: Add CMAX feature arm64/mpam: Add PBM feature arm64/mpam: Add limit feature arm64/mpam: Fix allocated cache size information fs/resctrl: Fix configuration to wrong control group when CDP is enabled arm64/mpam: Add debugging information about CDP monitor value arch/x86/include/asm/resctrl.h | 29 ++ arch/x86/kernel/cpu/resctrl/ctrlmondata.c | 39 +-- drivers/platform/mpam/mpam_devices.c | 111 +++++-- drivers/platform/mpam/mpam_internal.h | 25 +- drivers/platform/mpam/mpam_resctrl.c | 347 +++++++++++++++++----- fs/resctrl/ctrlmondata.c | 141 ++++++++- fs/resctrl/monitor.c | 5 +- fs/resctrl/rdtgroup.c | 135 +++++---- include/linux/arm_mpam.h | 7 + include/linux/resctrl.h | 17 +- include/linux/resctrl_types.h | 10 + 11 files changed, 670 insertions(+), 196 deletions(-) -- 2.25.1

2 18

[PATCH OLK-6.6 0/7] Updates for HiSilicon L3C PMU driver
by Yushan Wang 16 Apr '25

16 Apr '25

driver inclusion category: feature bugzilla: https://gitee.com/openeuler/kernel/issues/IC1F9Z CVE: NA ---------------------------------------------------------------------- Updates for HiSilicon L3C PMU driver. Yicong Yang (7): drivers/perf: hisi: Relax the event ID check in the framework drivers/perf: hisi: Export hisi_uncore_pmu_isr() drivers/perf: hisi: Simplify the probe process of each L3C PMU version drivers/perf: hisi: Extract the event filter check of L3C PMU drivers/perf: hisi: Extend the field of tt_core drivers/perf: hisi: Refactor the event configuration of L3C PMU drivers/perf: hisi: Add support for L3C PMU v3 drivers/perf/hisilicon/hisi_uncore_l3c_pmu.c | 529 ++++++++++++++++--- drivers/perf/hisilicon/hisi_uncore_pmu.c | 5 +- drivers/perf/hisilicon/hisi_uncore_pmu.h | 4 +- 3 files changed, 450 insertions(+), 88 deletions(-) -- 2.33.0

2 8

[openeuler:openEuler-1.0-LTS 1568/1568] drivers/spi/spi-phytium-plat.c:122:8: error: implicit declaration of function 'gpiod_count'
by kernel test robot 16 Apr '25

16 Apr '25

Hi Malloy, FYI, the error/warning still remains. tree: https://gitee.com/openeuler/kernel.git openEuler-1.0-LTS head: d47443532b562cff105f8cfbc32343f83a2ecd01 commit: e8483fcd43fc1dbb8d21bb7eacce804cbab6a7c6 [1568/1568] spi: add phytium spi support config: x86_64-randconfig-104-20250408 compiler: clang version 20.1.2 (https://github.com/llvm/llvm-project 58df0ef89dd64126512e4ee27b4ac3fd8ddf6247) reproduce (this is a W=1 build): 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/202504160834.JePJgVdj-lkp@intel.com/ All errors (new ones prefixed by >>): >> drivers/spi/spi-phytium-plat.c:122:8: error: implicit declaration of function 'gpiod_count' [-Werror,-Wimplicit-function-declaration] 122 | n = gpiod_count(&pdev->dev, "cs"); | ^ drivers/spi/spi-phytium-plat.c:122:8: note: did you mean 'cpuid_count'? arch/x86/include/asm/processor.h:620:20: note: 'cpuid_count' declared here 620 | static inline void cpuid_count(unsigned int op, int count, | ^ >> drivers/spi/spi-phytium-plat.c:128:12: error: implicit declaration of function 'devm_gpiod_get_index_optional' [-Werror,-Wimplicit-function-declaration] 128 | gpiod = devm_gpiod_get_index_optional(&pdev->dev, | ^ >> drivers/spi/spi-phytium-plat.c:129:17: error: use of undeclared identifier 'GPIOD_OUT_LOW' 129 | "cs", i, GPIOD_OUT_LOW); | ^ >> drivers/spi/spi-phytium-plat.c:136:14: error: implicit declaration of function 'desc_to_gpio' [-Werror,-Wimplicit-function-declaration] 136 | cs_gpio = desc_to_gpio(gpiod); | ^ drivers/spi/spi-phytium-plat.c:136:14: note: did you mean 'irq_to_gpio'? include/linux/gpio.h:236:19: note: 'irq_to_gpio' declared here 236 | static inline int irq_to_gpio(unsigned irq) | ^ 4 errors generated. Kconfig warnings: (for reference only) WARNING: unmet direct dependencies detected for SPI_PHYTIUM Depends on [n]: SPI [=y] && SPI_MASTER [=y] && (ARCH_PHYTIUM || COMPILE_TEST [=n]) Selected by [m]: - SPI_PHYTIUM_PLAT [=m] && SPI [=y] && SPI_MASTER [=y] vim +/gpiod_count +122 drivers/spi/spi-phytium-plat.c 37 38 static int phytium_spi_probe(struct platform_device *pdev) 39 { 40 struct phytium_spi_clk *ftsc; 41 struct phytium_spi *fts; 42 struct resource *mem; 43 int ret; 44 int num_cs; 45 int cs_gpio; 46 int global_cs; 47 int i; 48 49 ftsc = devm_kzalloc(&pdev->dev, sizeof(struct phytium_spi_clk), 50 GFP_KERNEL); 51 if (!ftsc) 52 return -ENOMEM; 53 54 fts = &ftsc->fts; 55 56 mem = platform_get_resource(pdev, IORESOURCE_MEM, 0); 57 if (!mem) { 58 dev_err(&pdev->dev, "no mem resource?\n"); 59 return -EINVAL; 60 } 61 62 fts->regs = devm_ioremap_resource(&pdev->dev, mem); 63 if (IS_ERR(fts->regs)) { 64 dev_err(&pdev->dev, "SPI region map failed\n"); 65 return PTR_ERR(fts->regs); 66 } 67 68 fts->irq = platform_get_irq(pdev, 0); 69 if (fts->irq < 0) { 70 dev_err(&pdev->dev, "no irq resource?\n"); 71 return fts->irq; /* -ENXIO */ 72 } 73 74 if (pdev->dev.of_node) { 75 ftsc->clk = devm_clk_get(&pdev->dev, NULL); 76 77 if (IS_ERR(ftsc->clk)) 78 return PTR_ERR(ftsc->clk); 79 ret = clk_prepare_enable(ftsc->clk); 80 if (ret) 81 return ret; 82 83 fts->max_freq = clk_get_rate(ftsc->clk); 84 } else if (has_acpi_companion(&pdev->dev)) { 85 fts->max_freq = 48000000; 86 } 87 88 fts->bus_num = pdev->id; 89 device_property_read_u32(&pdev->dev, 90 "reg-io-width", &fts->reg_io_width); 91 92 num_cs = 4; 93 94 device_property_read_u32(&pdev->dev, "num-cs", &num_cs); 95 96 fts->num_cs = num_cs; 97 98 if (pdev->dev.of_node) { 99 int i; 100 101 for (i = 0; i < fts->num_cs; i++) { 102 cs_gpio = of_get_named_gpio(pdev->dev.of_node, 103 "cs-gpios", i); 104 105 if (cs_gpio == -EPROBE_DEFER) { 106 ret = cs_gpio; 107 goto out; 108 } 109 110 if (gpio_is_valid(cs_gpio)) { 111 ret = devm_gpio_request(&pdev->dev, cs_gpio, 112 dev_name(&pdev->dev)); 113 if (ret) 114 goto out; 115 } 116 } 117 } else if (has_acpi_companion(&pdev->dev)) { 118 int n; 119 int *cs; 120 struct gpio_desc *gpiod; 121 > 122 n = gpiod_count(&pdev->dev, "cs"); 123 124 cs = devm_kcalloc(&pdev->dev, n, sizeof(int), GFP_KERNEL); 125 fts->cs = cs; 126 127 for (i = 0; i < n; i++) { > 128 gpiod = devm_gpiod_get_index_optional(&pdev->dev, > 129 "cs", i, GPIOD_OUT_LOW); 130 131 if (IS_ERR(gpiod)) { 132 ret = PTR_ERR(gpiod); 133 goto out; 134 } 135 > 136 cs_gpio = desc_to_gpio(gpiod); 137 cs[i] = cs_gpio; 138 } 139 } 140 141 device_property_read_u32(&pdev->dev, "global-cs", &global_cs); 142 fts->global_cs = global_cs; 143 144 ret = phytium_spi_add_host(&pdev->dev, fts); 145 if (ret) 146 goto out; 147 148 platform_set_drvdata(pdev, ftsc); 149 return 0; 150 151 out: 152 clk_disable_unprepare(ftsc->clk); 153 return ret; 154 } 155 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki

1 0

[openeuler:openEuler-1.0-LTS 1582/1582] drivers/platform/x86/intel_speed_select_if/.tmp_isst_if_mmio.o: warning: objtool: missing symbol for section .init.text
by kernel test robot 16 Apr '25

16 Apr '25

Hi Srinivas, FYI, the error/warning still remains. tree: https://gitee.com/openeuler/kernel.git openEuler-1.0-LTS head: d47443532b562cff105f8cfbc32343f83a2ecd01 commit: 8453d1c1d4ecff553e6c5d7ef7671ab91a241f4a [1582/1582] Intel: platform/x86: ISST: Add Intel Speed Select mmio interface config: x86_64-buildonly-randconfig-006-20250415 compiler: gcc-12 (Debian 12.2.0-14) 12.2.0 reproduce (this is a W=1 build): 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/202504160854.8OhZdFkA-lkp@intel.com/ All warnings (new ones prefixed by >>): >> drivers/platform/x86/intel_speed_select_if/.tmp_isst_if_mmio.o: warning: objtool: missing symbol for section .init.text -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki

1 0

[openeuler:openEuler-1.0-LTS 1365/1365] drivers/acpi/cppc_acpi.c:614:3-8: WARNING: NULL check before some freeing functions is not needed.
by kernel test robot 16 Apr '25

16 Apr '25

tree: https://gitee.com/openeuler/kernel.git openEuler-1.0-LTS head: d47443532b562cff105f8cfbc32343f83a2ecd01 commit: b8815fbbe89b0d15fa3296c3e57d2197a92f5bc0 [1365/1365] ACPI: CPPC: Fix cppc_cpufreq_init failed in CPU Hotplug situation config: x86_64-randconfig-102-20250103 compiler: clang version 19.1.3 (https://github.com/llvm/llvm-project ab51eccf88f5321e7c60591c5546b254b6afab99) 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/202504160744.SWErJnVd-lkp@intel.com/ cocci warnings: (new ones prefixed by >>) >> drivers/acpi/cppc_acpi.c:614:3-8: WARNING: NULL check before some freeing functions is not needed. vim +614 drivers/acpi/cppc_acpi.c 576 577 int acpi_get_psd_map(struct cppc_cpudata **all_cpu_data) 578 { 579 struct cpc_desc **cpc_pptr, *cpc_ptr; 580 int parsed_core_num = 0; 581 int i, ret; 582 583 cpc_pptr = kcalloc(num_possible_cpus(), sizeof(void *), GFP_KERNEL); 584 if (!cpc_pptr) 585 return -ENOMEM; 586 for_each_possible_cpu(i) { 587 cpc_pptr[i] = kzalloc(sizeof(struct cpc_desc), GFP_KERNEL); 588 if (!cpc_pptr[i]) { 589 ret = -ENOMEM; 590 goto out; 591 } 592 } 593 594 /* 595 * We can not use acpi_get_devices() to walk the processor devices 596 * because some processor device is not present. 597 */ 598 ret = acpi_walk_namespace(ACPI_TYPE_DEVICE, ACPI_ROOT_OBJECT, 599 ACPI_UINT32_MAX, acpi_parse_cpc, NULL, 600 cpc_pptr, (void **)&parsed_core_num); 601 if (ret) 602 goto out; 603 if (parsed_core_num != num_possible_cpus()) { 604 ret = -EINVAL; 605 goto out; 606 } 607 608 ret = __acpi_get_psd_map(all_cpu_data, cpc_pptr); 609 610 out: 611 for_each_possible_cpu(i) { 612 cpc_ptr = cpc_pptr[i]; 613 if (cpc_ptr) > 614 kfree(cpc_ptr); 615 } 616 kfree(cpc_pptr); 617 618 return ret; 619 } 620 EXPORT_SYMBOL_GPL(acpi_get_psd_map); 621 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki

1 0

[openeuler:openEuler-1.0-LTS 1480/1480] mm/debug.c:174:3: warning: format specifies type 'void *' but the argument has type 'int'
by kernel test robot 16 Apr '25

16 Apr '25

Hi Ding, FYI, the error/warning still remains. tree: https://gitee.com/openeuler/kernel.git openEuler-1.0-LTS head: d47443532b562cff105f8cfbc32343f83a2ecd01 commit: 2d2fe6b40444bd8f84f674930ac5f98a6314702e [1480/1480] ascend: mm: add an owner for mm_struct config: x86_64-randconfig-r112-20250311 compiler: clang version 19.1.7 (https://github.com/llvm/llvm-project cd708029e0b2869e80abe31ddb175f7c35361f90) reproduce (this is a W=1 build): 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/202504160550.0sQHot70-lkp@intel.com/ All warnings (new ones prefixed by >>): mm/debug.c: note: in included file (through include/linux/kernel.h): /opt/cross/clang-cd708029e0/lib/clang/19/include/stdarg.h:22:44: sparse: sparse: Expected ) in function call /opt/cross/clang-cd708029e0/lib/clang/19/include/stdarg.h:22:44: sparse: sparse: got < /opt/cross/clang-cd708029e0/lib/clang/19/include/stdarg.h:22:43: sparse: sparse: not a function <noident> /opt/cross/clang-cd708029e0/lib/clang/19/include/stdarg.h:22:22: sparse: sparse: bad constant expression type mm/debug.c: note: in included file (through include/linux/printk.h, include/linux/kernel.h): /opt/cross/clang-cd708029e0/lib/clang/19/include/stdarg.h:22:44: sparse: sparse: Expected ) in function call /opt/cross/clang-cd708029e0/lib/clang/19/include/stdarg.h:22:44: sparse: sparse: got < /opt/cross/clang-cd708029e0/lib/clang/19/include/stdarg.h:22:43: sparse: sparse: not a function <noident> /opt/cross/clang-cd708029e0/lib/clang/19/include/stdarg.h:22:22: sparse: sparse: bad constant expression type mm/debug.c: note: in included file (through include/linux/string.h, include/linux/bitmap.h, include/linux/cpumask.h, ...): /opt/cross/clang-cd708029e0/lib/clang/19/include/stdarg.h:22:44: sparse: sparse: Expected ) in function call /opt/cross/clang-cd708029e0/lib/clang/19/include/stdarg.h:22:44: sparse: sparse: got < /opt/cross/clang-cd708029e0/lib/clang/19/include/stdarg.h:22:43: sparse: sparse: not a function <noident> /opt/cross/clang-cd708029e0/lib/clang/19/include/stdarg.h:22:22: sparse: sparse: bad constant expression type >> mm/debug.c:174:3: warning: format specifies type 'void *' but the argument has type 'int' [-Wformat] 135 | atomic_read(&mm->tlb_flush_pending), | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ include/linux/printk.h:342:35: note: expanded from macro 'pr_emerg' 342 | printk(KERN_EMERG pr_fmt(fmt), ##__VA_ARGS__) | ~~~ ^~~~~~~~~~~ >> mm/debug.c:175:3: warning: format specifies type 'int' but the argument has type 'unsigned long' [-Wformat] 142 | mm->def_flags, &mm->def_flags | ^~~~~~~~~~~~~ include/linux/printk.h:342:35: note: expanded from macro 'pr_emerg' 342 | printk(KERN_EMERG pr_fmt(fmt), ##__VA_ARGS__) | ~~~ ^~~~~~~~~~~ >> mm/debug.c:175:18: warning: format specifies type 'unsigned long' but the argument has type 'const unsigned long *' [-Wformat] 143 | mm->def_flags, &mm->def_flags | ^~~~~~~~~~~~~~ include/linux/printk.h:342:35: note: expanded from macro 'pr_emerg' 342 | printk(KERN_EMERG pr_fmt(fmt), ##__VA_ARGS__) | ~~~ ^~~~~~~~~~~ >> mm/debug.c:143:21: warning: more '%' conversions than data arguments [-Wformat-insufficient-args] 143 | "def_flags: %#lx(%pGv)\n", | ~^ include/linux/printk.h:342:27: note: expanded from macro 'pr_emerg' 342 | printk(KERN_EMERG pr_fmt(fmt), ##__VA_ARGS__) | ^~~ include/linux/printk.h:332:21: note: expanded from macro 'pr_fmt' 332 | #define pr_fmt(fmt) fmt | ^~~ 4 warnings generated. vim +174 mm/debug.c 82742a3a515219 Sasha Levin 2014-10-09 114 31c9afa6db122a Sasha Levin 2014-10-09 115 void dump_mm(const struct mm_struct *mm) 31c9afa6db122a Sasha Levin 2014-10-09 116 { 7a9cdebdcc17e4 Linus Torvalds 2018-09-12 117 pr_emerg("mm %px mmap %px seqnum %llu task_size %lu\n" 31c9afa6db122a Sasha Levin 2014-10-09 118 #ifdef CONFIG_MMU 152a2d199e1385 Matthew Wilcox 2018-01-04 119 "get_unmapped_area %px\n" 31c9afa6db122a Sasha Levin 2014-10-09 120 #endif 31c9afa6db122a Sasha Levin 2014-10-09 121 "mmap_base %lu mmap_legacy_base %lu highest_vm_end %lu\n" 152a2d199e1385 Matthew Wilcox 2018-01-04 122 "pgd %px mm_users %d mm_count %d pgtables_bytes %lu map_count %d\n" 31c9afa6db122a Sasha Levin 2014-10-09 123 "hiwater_rss %lx hiwater_vm %lx total_vm %lx locked_vm %lx\n" 84638335900f19 Konstantin Khlebnikov 2016-01-14 124 "pinned_vm %lx data_vm %lx exec_vm %lx stack_vm %lx\n" 31c9afa6db122a Sasha Levin 2014-10-09 125 "start_code %lx end_code %lx start_data %lx end_data %lx\n" 31c9afa6db122a Sasha Levin 2014-10-09 126 "start_brk %lx brk %lx start_stack %lx\n" 31c9afa6db122a Sasha Levin 2014-10-09 127 "arg_start %lx arg_end %lx env_start %lx env_end %lx\n" 152a2d199e1385 Matthew Wilcox 2018-01-04 128 "binfmt %px flags %lx core_state %px\n" 31c9afa6db122a Sasha Levin 2014-10-09 129 #ifdef CONFIG_AIO 152a2d199e1385 Matthew Wilcox 2018-01-04 130 "ioctx_table %px\n" 31c9afa6db122a Sasha Levin 2014-10-09 131 #endif 2d2fe6b40444bd Ding Tianhong 2021-10-30 132 #ifdef CONFIG_MM_OWNER 152a2d199e1385 Matthew Wilcox 2018-01-04 133 "owner %px " 31c9afa6db122a Sasha Levin 2014-10-09 134 #endif 152a2d199e1385 Matthew Wilcox 2018-01-04 135 "exe_file %px\n" 31c9afa6db122a Sasha Levin 2014-10-09 136 #ifdef CONFIG_MMU_NOTIFIER 152a2d199e1385 Matthew Wilcox 2018-01-04 137 "mmu_notifier_mm %px\n" 31c9afa6db122a Sasha Levin 2014-10-09 138 #endif 31c9afa6db122a Sasha Levin 2014-10-09 139 #ifdef CONFIG_NUMA_BALANCING 31c9afa6db122a Sasha Levin 2014-10-09 140 "numa_next_scan %lu numa_scan_offset %lu numa_scan_seq %d\n" 31c9afa6db122a Sasha Levin 2014-10-09 141 #endif 31c9afa6db122a Sasha Levin 2014-10-09 142 "tlb_flush_pending %d\n" b8eceeb99014cf Vlastimil Babka 2016-03-15 @143 "def_flags: %#lx(%pGv)\n", 31c9afa6db122a Sasha Levin 2014-10-09 144 7a9cdebdcc17e4 Linus Torvalds 2018-09-12 145 mm, mm->mmap, (long long) mm->vmacache_seqnum, mm->task_size, 31c9afa6db122a Sasha Levin 2014-10-09 146 #ifdef CONFIG_MMU 31c9afa6db122a Sasha Levin 2014-10-09 147 mm->get_unmapped_area, 31c9afa6db122a Sasha Levin 2014-10-09 148 #endif 31c9afa6db122a Sasha Levin 2014-10-09 149 mm->mmap_base, mm->mmap_legacy_base, mm->highest_vm_end, 31c9afa6db122a Sasha Levin 2014-10-09 150 mm->pgd, atomic_read(&mm->mm_users), 31c9afa6db122a Sasha Levin 2014-10-09 151 atomic_read(&mm->mm_count), af5b0f6a09e42c Kirill A. Shutemov 2017-11-15 152 mm_pgtables_bytes(mm), 31c9afa6db122a Sasha Levin 2014-10-09 153 mm->map_count, 53f4e528406789 Daniel Jordan 2019-08-14 154 mm->hiwater_rss, mm->hiwater_vm, mm->total_vm, 53f4e528406789 Daniel Jordan 2019-08-14 155 atomic_long_read(&mm->locked_vm), 84638335900f19 Konstantin Khlebnikov 2016-01-14 156 mm->pinned_vm, mm->data_vm, mm->exec_vm, mm->stack_vm, 31c9afa6db122a Sasha Levin 2014-10-09 157 mm->start_code, mm->end_code, mm->start_data, mm->end_data, 31c9afa6db122a Sasha Levin 2014-10-09 158 mm->start_brk, mm->brk, mm->start_stack, 31c9afa6db122a Sasha Levin 2014-10-09 159 mm->arg_start, mm->arg_end, mm->env_start, mm->env_end, 31c9afa6db122a Sasha Levin 2014-10-09 160 mm->binfmt, mm->flags, mm->core_state, 31c9afa6db122a Sasha Levin 2014-10-09 161 #ifdef CONFIG_AIO 31c9afa6db122a Sasha Levin 2014-10-09 162 mm->ioctx_table, 31c9afa6db122a Sasha Levin 2014-10-09 163 #endif 31c9afa6db122a Sasha Levin 2014-10-09 164 #ifdef CONFIG_MEMCG 31c9afa6db122a Sasha Levin 2014-10-09 165 mm->owner, 31c9afa6db122a Sasha Levin 2014-10-09 166 #endif 31c9afa6db122a Sasha Levin 2014-10-09 167 mm->exe_file, 31c9afa6db122a Sasha Levin 2014-10-09 168 #ifdef CONFIG_MMU_NOTIFIER 31c9afa6db122a Sasha Levin 2014-10-09 169 mm->mmu_notifier_mm, 31c9afa6db122a Sasha Levin 2014-10-09 170 #endif 31c9afa6db122a Sasha Levin 2014-10-09 171 #ifdef CONFIG_NUMA_BALANCING 31c9afa6db122a Sasha Levin 2014-10-09 172 mm->numa_next_scan, mm->numa_scan_offset, mm->numa_scan_seq, 31c9afa6db122a Sasha Levin 2014-10-09 173 #endif 16af97dc5a8975 Nadav Amit 2017-08-10 @174 atomic_read(&mm->tlb_flush_pending), b8eceeb99014cf Vlastimil Babka 2016-03-15 @175 mm->def_flags, &mm->def_flags 31c9afa6db122a Sasha Levin 2014-10-09 176 ); 31c9afa6db122a Sasha Levin 2014-10-09 177 } 31c9afa6db122a Sasha Levin 2014-10-09 178 :::::: The code at line 174 was first introduced by commit :::::: 16af97dc5a8975371a83d9e30a64038b48f40a2d mm: migrate: prevent racy access to tlb_flush_pending :::::: TO: Nadav Amit <nadav.amit(a)gmail.com> :::::: CC: Linus Torvalds <torvalds(a)linux-foundation.org> -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki

1 0

[openeuler:openEuler-1.0-LTS 1582/1582] include/linux/thread_info.h:119:17: warning: 'usercmd' may be used uninitialized
by kernel test robot 16 Apr '25

16 Apr '25

tree: https://gitee.com/openeuler/kernel.git openEuler-1.0-LTS head: d47443532b562cff105f8cfbc32343f83a2ecd01 commit: 71e217e85c3dff8a9151707ed3afc7b4b054a2d4 [1582/1582] selinux: use kernel linux/socket.h for genheaders and mdp config: x86_64-buildonly-randconfig-003-20250415 compiler: gcc-12 (Debian 12.2.0-14) 12.2.0 reproduce (this is a W=1 build): 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/202504160234.O5AhsCPF-lkp@intel.com/ Note: it may well be a FALSE warning. FWIW you are at least aware of it now. http://gcc.gnu.org/wiki/Better_Uninitialized_Warnings All warnings (new ones prefixed by >>): In file included from arch/x86/include/asm/preempt.h:7, from include/linux/preempt.h:81, from include/linux/spinlock.h:51, from include/linux/mmzone.h:9, from include/linux/gfp.h:6, from include/linux/slab.h:15, from include/linux/resource_ext.h:19, from include/linux/acpi.h:26, from include/linux/apple-gmux.h:21, from drivers/gpu/vga/vga_switcheroo.c:33: In function 'check_object_size', inlined from 'check_copy_size' at include/linux/thread_info.h:150:2, inlined from 'copy_from_user' at include/linux/uaccess.h:143:6, inlined from 'vga_switcheroo_debugfs_write' at drivers/gpu/vga/vga_switcheroo.c:795:6: >> include/linux/thread_info.h:119:17: warning: 'usercmd' may be used uninitialized [-Wmaybe-uninitialized] 119 | __check_object_size(ptr, n, to_user); | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ include/linux/thread_info.h: In function 'vga_switcheroo_debugfs_write': include/linux/thread_info.h:112:13: note: by argument 1 of type 'const void *' to '__check_object_size' declared here 112 | extern void __check_object_size(const void *ptr, unsigned long n, | ^~~~~~~~~~~~~~~~~~~ drivers/gpu/vga/vga_switcheroo.c:785:14: note: 'usercmd' declared here 785 | char usercmd[64]; | ^~~~~~~ drivers/gpu/vga/vga_switcheroo.o: warning: objtool: check_can_switch()+0x8f: sibling call from callable instruction with modified stack frame drivers/gpu/vga/vga_switcheroo.o: warning: objtool: register_client()+0x2ef: sibling call from callable instruction with modified stack frame drivers/gpu/vga/vga_switcheroo.o: warning: objtool: vga_switcheroo_debugfs_write()+0x71e: sibling call from callable instruction with modified stack frame drivers/gpu/vga/vga_switcheroo.o: warning: objtool: vga_switcheroo_register_handler()+0x9a: sibling call from callable instruction with modified stack frame drivers/gpu/vga/vga_switcheroo.o: warning: objtool: vga_switcheroo_unregister_handler()+0x4d: sibling call from callable instruction with modified stack frame drivers/gpu/vga/vga_switcheroo.o: warning: objtool: vga_switcheroo_unregister_client()+0x234: sibling call from callable instruction with modified stack frame drivers/gpu/vga/vga_switcheroo.o: warning: objtool: vga_switcheroo_process_delayed_switch()+0x32: sibling call from callable instruction with modified stack frame drivers/gpu/vga/vga_switcheroo.o: warning: objtool: check_can_switch.cold()+0x0: call without frame pointer save/setup drivers/gpu/vga/vga_switcheroo.o: warning: objtool: register_client.cold()+0x0: call without frame pointer save/setup drivers/gpu/vga/vga_switcheroo.o: warning: objtool: vga_switcheroo_debugfs_write.cold()+0x0: call without frame pointer save/setup drivers/gpu/vga/vga_switcheroo.o: warning: objtool: vga_switcheroo_register_handler.cold()+0x0: call without frame pointer save/setup drivers/gpu/vga/vga_switcheroo.o: warning: objtool: vga_switcheroo_unregister_handler.cold()+0x0: call without frame pointer save/setup drivers/gpu/vga/vga_switcheroo.o: warning: objtool: vga_switcheroo_unregister_client.cold()+0x0: call without frame pointer save/setup drivers/gpu/vga/vga_switcheroo.o: warning: objtool: vga_switcheroo_process_delayed_switch.cold()+0x0: call without frame pointer save/setup vim +/usercmd +119 include/linux/thread_info.h 0f60a8efe4005a Kees Cook 2016-07-12 110 f5509cc18daa7f Kees Cook 2016-06-07 111 #ifdef CONFIG_HARDENED_USERCOPY f5509cc18daa7f Kees Cook 2016-06-07 112 extern void __check_object_size(const void *ptr, unsigned long n, f5509cc18daa7f Kees Cook 2016-06-07 113 bool to_user); f5509cc18daa7f Kees Cook 2016-06-07 114 a85d6b8242dc78 Kees Cook 2016-09-07 115 static __always_inline void check_object_size(const void *ptr, unsigned long n, f5509cc18daa7f Kees Cook 2016-06-07 116 bool to_user) f5509cc18daa7f Kees Cook 2016-06-07 117 { 81409e9e280588 Kees Cook 2016-08-31 118 if (!__builtin_constant_p(n)) f5509cc18daa7f Kees Cook 2016-06-07 @119 __check_object_size(ptr, n, to_user); f5509cc18daa7f Kees Cook 2016-06-07 120 } f5509cc18daa7f Kees Cook 2016-06-07 121 #else f5509cc18daa7f Kees Cook 2016-06-07 122 static inline void check_object_size(const void *ptr, unsigned long n, f5509cc18daa7f Kees Cook 2016-06-07 123 bool to_user) f5509cc18daa7f Kees Cook 2016-06-07 124 { } f5509cc18daa7f Kees Cook 2016-06-07 125 #endif /* CONFIG_HARDENED_USERCOPY */ f5509cc18daa7f Kees Cook 2016-06-07 126 :::::: The code at line 119 was first introduced by commit :::::: f5509cc18daa7f82bcc553be70df2117c8eedc16 mm: Hardened usercopy :::::: TO: Kees Cook <keescook(a)chromium.org> :::::: CC: Kees Cook <keescook(a)chromium.org> -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki

1 0

[openeuler:OLK-6.6] BUILD REGRESSION 8e04020e957c517ad3fb6bb3caa90e037dc3d5b8
by kernel test robot 15 Apr '25

15 Apr '25

tree/branch: https://gitee.com/openeuler/kernel.git OLK-6.6 branch HEAD: 8e04020e957c517ad3fb6bb3caa90e037dc3d5b8 !15839 ext4: Some zeroing fixes Error/Warning (recently discovered and may have been fixed): https://lore.kernel.org/oe-kbuild-all/202503182233.88LCSaAj-lkp@intel.com https://lore.kernel.org/oe-kbuild-all/202503200858.XSvAPfQM-lkp@intel.com https://lore.kernel.org/oe-kbuild-all/202503201027.i8HE43EJ-lkp@intel.com https://lore.kernel.org/oe-kbuild-all/202503220823.mG13Rroz-lkp@intel.com https://lore.kernel.org/oe-kbuild-all/202503220924.Uw2cwpZV-lkp@intel.com https://lore.kernel.org/oe-kbuild-all/202503290855.eVbc4pVd-lkp@intel.com https://lore.kernel.org/oe-kbuild-all/202504012026.kzT6d2HZ-lkp@intel.com https://lore.kernel.org/oe-kbuild-all/202504142028.WisA9n7Q-lkp@intel.com https://lore.kernel.org/oe-kbuild-all/202504150515.bR3H6UHH-lkp@intel.com arch/arm64/kvm/virtcca_cvm.c:819:5: warning: no previous prototype for function 'virtcca_get_tmi_version' [-Wmissing-prototypes] arch/loongarch/mm/cache.c:69:29: warning: variable 'way_size' set but not used [-Wunused-but-set-variable] drivers/coda/coda_pci.c:228: warning: Excess function parameter 'pdev' description in 'virtcca_pci_get_rom_size' drivers/coda/coda_pci.c:228: warning: Function parameter or member 'p' not described in 'virtcca_pci_get_rom_size' drivers/scsi/linkdata/ps3stor/./linux/ps3_base.c:545:5: error: no previous prototype for 'ps3_pci_init' [-Werror=missing-prototypes] drivers/scsi/linkdata/ps3stor/./linux/ps3_base.c:899:5: error: no previous prototype for 'ps3_pci_init_complete' [-Werror=missing-prototypes] drivers/scsi/linkdata/ps3stor/./linux/ps3_base.c:945:6: error: no previous prototype for 'ps3_pci_init_complete_exit' [-Werror=missing-prototypes] drivers/scsi/linkdata/ps3stor/./linux/ps3_cli.c:108:9: error: function 'ps3stor_cli_printf' might be a candidate for 'gnu_printf' format attribute [-Werror=suggest-attribute=format] drivers/scsi/linkdata/ps3stor/./linux/ps3_cli_debug.c:1059:5: error: no previous prototype for 'ps3_dump_context_show' [-Werror=missing-prototypes] drivers/scsi/linkdata/ps3stor/./linux/ps3_dump.c:159:5: error: no previous prototype for 'ps3_dump_file_write' [-Werror=missing-prototypes] drivers/scsi/linkdata/ps3stor/./linux/ps3_dump.c:200:5: error: no previous prototype for 'ps3_dump_file_close' [-Werror=missing-prototypes] drivers/scsi/linkdata/ps3stor/./linux/ps3_dump.c:28:5: error: no previous prototype for 'ps3_dump_local_time' [-Werror=missing-prototypes] drivers/scsi/linkdata/ps3stor/./linux/ps3_dump.c:50:5: error: no previous prototype for 'ps3_dump_filename_build' [-Werror=missing-prototypes] drivers/scsi/linkdata/ps3stor/./linux/ps3_dump.c:76:5: error: no previous prototype for 'ps3_dump_file_open' [-Werror=missing-prototypes] drivers/scsi/linkdata/ps3stor/ps3_cmd_complete.c:131:6: error: no previous prototype for 'ps3_trigger_irq_poll' [-Werror=missing-prototypes] drivers/scsi/linkdata/ps3stor/ps3_cmd_complete.c:243:5: error: no previous prototype for 'ps3_resp_status_convert' [-Werror=missing-prototypes] drivers/scsi/linkdata/ps3stor/ps3_cmd_statistics.c:403:6: error: no previous prototype for 'ps3_io_recv_ok_stat_inc' [-Werror=missing-prototypes] drivers/scsi/linkdata/ps3stor/ps3_cmd_statistics.c:85:6: error: no previous prototype for 'ps3_cmd_stat_content_clear' [-Werror=missing-prototypes] drivers/scsi/linkdata/ps3stor/ps3_debug.c:883:5: error: no previous prototype for 'ps3_dump_dir_length' [-Werror=missing-prototypes] drivers/scsi/linkdata/ps3stor/ps3_device_manager.c:1581:5: error: no previous prototype for 'ps3_scsi_private_init_pd' [-Werror=missing-prototypes] drivers/scsi/linkdata/ps3stor/ps3_device_manager.c:1663:5: error: no previous prototype for 'ps3_scsi_private_init_vd' [-Werror=missing-prototypes] drivers/scsi/linkdata/ps3stor/ps3_device_manager_sas.c:1632:5: error: no previous prototype for 'ps3_sas_expander_phys_refresh' [-Werror=missing-prototypes] drivers/scsi/linkdata/ps3stor/ps3_instance_manager.c:669:60: error: 'snprintf' output may be truncated before the last format character [-Werror=format-truncation=] drivers/scsi/linkdata/ps3stor/ps3_ioc_adp.c:147:6: error: no previous prototype for 'ps3_ioc_resource_prepare_hba' [-Werror=missing-prototypes] drivers/scsi/linkdata/ps3stor/ps3_ioc_adp.c:36:6: error: no previous prototype for 'ps3_ioc_resource_prepare_switch' [-Werror=missing-prototypes] drivers/scsi/linkdata/ps3stor/ps3_ioc_adp.c:88:6: error: no previous prototype for 'ps3_ioc_resource_prepare_raid' [-Werror=missing-prototypes] drivers/scsi/linkdata/ps3stor/ps3_ioc_manager.c:307:5: error: no previous prototype for 'ps3_hard_reset_to_ready' [-Werror=missing-prototypes] drivers/scsi/linkdata/ps3stor/ps3_ioctl.c:785:6: error: no previous prototype for 'ps3_clean_mgr_cmd' [-Werror=missing-prototypes] drivers/scsi/linkdata/ps3stor/ps3_irq.c:21:27: error: 'PS3_INTERRUPT_CMD_DISABLE_ALL_MASK' defined but not used [-Werror=unused-const-variable=] drivers/scsi/linkdata/ps3stor/ps3_irq.c:22:27: error: 'PS3_INTERRUPT_CMD_ENABLE_MSIX' defined but not used [-Werror=unused-const-variable=] drivers/scsi/linkdata/ps3stor/ps3_irq.c:23:27: error: 'PS3_INTERRUPT_MASK_DISABLE' defined but not used [-Werror=unused-const-variable=] drivers/scsi/linkdata/ps3stor/ps3_irq.c:24:27: error: 'PS3_INTERRUPT_STATUS_EXIST_IRQ' defined but not used [-Werror=unused-const-variable=] drivers/scsi/linkdata/ps3stor/ps3_irq.c:25:27: error: 'PS3_INTERRUPT_CLEAR_IRQ' defined but not used [-Werror=unused-const-variable=] drivers/scsi/linkdata/ps3stor/ps3_irq.c:27:27: error: 'PS3_SSD_IOPS_MSIX_VECTORS' defined but not used [-Werror=unused-const-variable=] drivers/scsi/linkdata/ps3stor/ps3_irq.c:28:27: error: 'PS3_HDD_IOPS_MSIX_VECTORS' defined but not used [-Werror=unused-const-variable=] drivers/scsi/linkdata/ps3stor/ps3_module_para.c:609:14: error: no previous prototype for 'ps3_cli_ver_query' [-Werror=missing-prototypes] drivers/scsi/linkdata/ps3stor/ps3_qos.c:1058:6: error: no previous prototype for 'ps3_qos_pd_waitq_ratio_update' [-Werror=missing-prototypes] drivers/scsi/linkdata/ps3stor/ps3_qos.c:2019:15: error: no previous prototype for 'ps3_hba_qos_decision' [-Werror=missing-prototypes] drivers/scsi/linkdata/ps3stor/ps3_qos.c:2040:6: error: no previous prototype for 'ps3_hba_qos_waitq_notify' [-Werror=missing-prototypes] drivers/scsi/linkdata/ps3stor/ps3_qos.c:2100:6: error: no previous prototype for 'ps3_cmd_waitq_abort' [-Werror=missing-prototypes] drivers/scsi/linkdata/ps3stor/ps3_qos.c:211:1: error: no previous prototype for 'ps3_qos_cmd_waitq_get' [-Werror=missing-prototypes] drivers/scsi/linkdata/ps3stor/ps3_qos.c:2463:6: error: no previous prototype for 'ps3_hba_qos_waitq_clear_all' [-Werror=missing-prototypes] drivers/scsi/linkdata/ps3stor/ps3_qos.c:2827:6: error: no previous prototype for 'ps3_hba_qos_vd_init' [-Werror=missing-prototypes] drivers/scsi/linkdata/ps3stor/ps3_qos.c:2936:6: error: no previous prototype for 'ps3_hba_qos_vd_reset' [-Werror=missing-prototypes] drivers/scsi/linkdata/ps3stor/ps3_qos.c:3023:6: error: no previous prototype for 'ps3_hba_qos_waitq_poll' [-Werror=missing-prototypes] drivers/scsi/linkdata/ps3stor/ps3_qos.c:3279:15: error: no previous prototype for 'ps3_raid_qos_decision' [-Werror=missing-prototypes] drivers/scsi/linkdata/ps3stor/ps3_qos.c:3334:6: error: no previous prototype for 'ps3_qos_mgrq_resend' [-Werror=missing-prototypes] drivers/scsi/linkdata/ps3stor/ps3_qos.c:335:15: error: no previous prototype for 'ps3_qos_vd_cmdword_get' [-Werror=missing-prototypes] drivers/scsi/linkdata/ps3stor/ps3_qos.c:3478:6: error: no previous prototype for 'ps3_raid_qos_waitq_notify' [-Werror=missing-prototypes] drivers/scsi/linkdata/ps3stor/ps3_qos.c:351:15: error: no previous prototype for 'ps3_qos_exclusive_cmdword_get' [-Werror=missing-prototypes] drivers/scsi/linkdata/ps3stor/ps3_qos.c:363:15: error: no previous prototype for 'ps3_qos_tg_decision' [-Werror=missing-prototypes] drivers/scsi/linkdata/ps3stor/ps3_qos.c:3821:15: error: no previous prototype for 'ps3_raid_qos_waitq_abort' [-Werror=missing-prototypes] drivers/scsi/linkdata/ps3stor/ps3_qos.c:4022:6: error: no previous prototype for 'ps3_raid_qos_waitq_clear_all' [-Werror=missing-prototypes] drivers/scsi/linkdata/ps3stor/ps3_qos.c:4083:6: error: no previous prototype for 'ps3_raid_qos_waitq_poll' [-Werror=missing-prototypes] drivers/scsi/linkdata/ps3stor/ps3_qos.c:749:15: error: no previous prototype for 'ps3_qos_all_pd_rc_get' [-Werror=missing-prototypes] drivers/scsi/linkdata/ps3stor/ps3_qos.c:876:6: error: no previous prototype for 'ps3_pd_quota_waitq_clear_all' [-Werror=missing-prototypes] drivers/scsi/linkdata/ps3stor/ps3_qos.c:892:6: error: no previous prototype for 'ps3_pd_quota_waitq_clean' [-Werror=missing-prototypes] drivers/scsi/linkdata/ps3stor/ps3_r1x_write_lock.c:1173:5: error: no previous prototype for 'ps3_range_check_and_insert' [-Werror=missing-prototypes] drivers/scsi/linkdata/ps3stor/ps3_r1x_write_lock.c:1231:5: error: no previous prototype for 'ps3_r1x_hash_range_lock' [-Werror=missing-prototypes] drivers/scsi/linkdata/ps3stor/ps3_r1x_write_lock.c:1312:6: error: no previous prototype for 'ps3_r1x_hash_range_unlock' [-Werror=missing-prototypes] drivers/scsi/linkdata/ps3stor/ps3_r1x_write_lock.c:578:5: error: no previous prototype for 'ps3_r1x_hash_bit_check' [-Werror=missing-prototypes] drivers/scsi/linkdata/ps3stor/ps3_r1x_write_lock.c:678:6: error: no previous prototype for 'ps3_r1x_conflict_queue_hash_bit_lock' [-Werror=missing-prototypes] drivers/scsi/linkdata/ps3stor/ps3_r1x_write_lock.c:730:5: error: no previous prototype for 'ps3_r1x_hash_bit_lock' [-Werror=missing-prototypes] drivers/scsi/linkdata/ps3stor/ps3_r1x_write_lock.c:988:6: error: no previous prototype for 'ps3_r1x_hash_bit_unlock' [-Werror=missing-prototypes] drivers/scsi/linkdata/ps3stor/ps3_rb_tree.c:154:6: error: no previous prototype for 'rbtDelNodeDo' [-Werror=missing-prototypes] drivers/scsi/linkdata/ps3stor/ps3_recovery.c:204:6: error: no previous prototype for 'ps3_recovery_irq_queue_destroy' [-Werror=missing-prototypes] drivers/scsi/linkdata/ps3stor/ps3_recovery.c:2700:6: error: no previous prototype for 'ps3_hard_recovery_state_finish' [-Werror=missing-prototypes] drivers/scsi/linkdata/ps3stor/ps3_recovery.c:363:5: error: no previous prototype for 'ps3_recovery_state_transfer' [-Werror=missing-prototypes] drivers/scsi/linkdata/ps3stor/ps3_recovery.c:72:30: error: no previous prototype for 'ps3_recovery_context_alloc' [-Werror=missing-prototypes] drivers/scsi/linkdata/ps3stor/ps3_recovery.c:82:6: error: no previous prototype for 'ps3_recovery_context_free' [-Werror=missing-prototypes] drivers/scsi/linkdata/ps3stor/ps3_recovery.c:88:6: error: no previous prototype for 'ps3_recovery_context_delete' [-Werror=missing-prototypes] drivers/scsi/linkdata/ps3stor/ps3_sas_transport.c:407:5: error: no previous prototype for 'ps3_sas_update_phy_info' [-Werror=missing-prototypes] drivers/scsi/linkdata/ps3stor/ps3_scsi_cmd_err.c:1110:5: error: no previous prototype for 'ps3_wait_for_outstanding_complete' [-Werror=missing-prototypes] drivers/scsi/linkdata/ps3stor/ps3_scsi_cmd_err.c:876:6: error: no previous prototype for 'ps3_set_task_manager_busy' [-Werror=missing-prototypes] kismet: WARNING: unmet direct dependencies detected for ACPI_HOTPLUG_IGNORE_OSC when selected by X86 kismet: WARNING: unmet direct dependencies detected for CRYPTO_DRBG_CTR when selected by CRYPTO_DEV_HISI_TRNG kismet: WARNING: unmet direct dependencies detected for HALTPOLL_CPUIDLE when selected by ARM64 mm/kasan/shadow.c:90: undefined reference to `__memcpy_mc' mm/mempolicy.c:3129:26: warning: writing 1 byte into a region of size 0 [-Wstringop-overflow=] vmlinux.o: warning: objtool: kasan_report+0x10b: RET before UNTRAIN Unverified Error/Warning (likely false positive, kindly check if interested): mm/kasan/kasan_test.c:1186 rcu_uaf_reclaim() error: dereferencing freed memory 'fp' (line 1185) mm/oom_kill.c: linux/nmi.h is included more than once. Error/Warning ids grouped by kconfigs: recent_errors |-- arm64-allmodconfig | |-- arch-arm64-kvm-virtcca_cvm.c:warning:no-previous-prototype-for-function-virtcca_get_tmi_version | |-- drivers-coda-coda_pci.c:warning:Excess-function-parameter-pdev-description-in-virtcca_pci_get_rom_size | `-- drivers-coda-coda_pci.c:warning:Function-parameter-or-member-p-not-described-in-virtcca_pci_get_rom_size |-- arm64-allnoconfig | |-- kismet:WARNING:unmet-direct-dependencies-detected-for-CRYPTO_DRBG_CTR-when-selected-by-CRYPTO_DEV_HISI_TRNG | `-- kismet:WARNING:unmet-direct-dependencies-detected-for-HALTPOLL_CPUIDLE-when-selected-by-ARM64 |-- arm64-randconfig-003-20250414 | `-- mm-kasan-shadow.c:undefined-reference-to-__memcpy_mc |-- loongarch-allmodconfig | |-- arch-loongarch-mm-cache.c:warning:variable-way_size-set-but-not-used | |-- drivers-scsi-linkdata-ps3stor-.-linux-ps3_base.c:error:no-previous-prototype-for-ps3_pci_init | |-- drivers-scsi-linkdata-ps3stor-.-linux-ps3_base.c:error:no-previous-prototype-for-ps3_pci_init_complete | |-- drivers-scsi-linkdata-ps3stor-.-linux-ps3_base.c:error:no-previous-prototype-for-ps3_pci_init_complete_exit | |-- drivers-scsi-linkdata-ps3stor-.-linux-ps3_cli.c:error:function-ps3stor_cli_printf-might-be-a-candidate-for-gnu_printf-format-attribute | |-- drivers-scsi-linkdata-ps3stor-.-linux-ps3_cli_debug.c:error:no-previous-prototype-for-ps3_dump_context_show | |-- drivers-scsi-linkdata-ps3stor-.-linux-ps3_dump.c:error:no-previous-prototype-for-ps3_dump_file_close | |-- drivers-scsi-linkdata-ps3stor-.-linux-ps3_dump.c:error:no-previous-prototype-for-ps3_dump_file_open | |-- drivers-scsi-linkdata-ps3stor-.-linux-ps3_dump.c:error:no-previous-prototype-for-ps3_dump_file_write | |-- drivers-scsi-linkdata-ps3stor-.-linux-ps3_dump.c:error:no-previous-prototype-for-ps3_dump_filename_build | |-- drivers-scsi-linkdata-ps3stor-.-linux-ps3_dump.c:error:no-previous-prototype-for-ps3_dump_local_time | |-- drivers-scsi-linkdata-ps3stor-ps3_cmd_complete.c:error:no-previous-prototype-for-ps3_resp_status_convert | |-- drivers-scsi-linkdata-ps3stor-ps3_cmd_complete.c:error:no-previous-prototype-for-ps3_trigger_irq_poll | |-- drivers-scsi-linkdata-ps3stor-ps3_cmd_statistics.c:error:no-previous-prototype-for-ps3_cmd_stat_content_clear | |-- drivers-scsi-linkdata-ps3stor-ps3_cmd_statistics.c:error:no-previous-prototype-for-ps3_io_recv_ok_stat_inc | |-- drivers-scsi-linkdata-ps3stor-ps3_debug.c:error:no-previous-prototype-for-ps3_dump_dir_length | |-- drivers-scsi-linkdata-ps3stor-ps3_device_manager.c:error:no-previous-prototype-for-ps3_scsi_private_init_pd | |-- drivers-scsi-linkdata-ps3stor-ps3_device_manager.c:error:no-previous-prototype-for-ps3_scsi_private_init_vd | |-- drivers-scsi-linkdata-ps3stor-ps3_device_manager_sas.c:error:no-previous-prototype-for-ps3_sas_expander_phys_refresh | |-- drivers-scsi-linkdata-ps3stor-ps3_instance_manager.c:error:snprintf-output-may-be-truncated-before-the-last-format-character | |-- drivers-scsi-linkdata-ps3stor-ps3_ioc_adp.c:error:no-previous-prototype-for-ps3_ioc_resource_prepare_hba | |-- drivers-scsi-linkdata-ps3stor-ps3_ioc_adp.c:error:no-previous-prototype-for-ps3_ioc_resource_prepare_raid | |-- drivers-scsi-linkdata-ps3stor-ps3_ioc_adp.c:error:no-previous-prototype-for-ps3_ioc_resource_prepare_switch | |-- drivers-scsi-linkdata-ps3stor-ps3_ioc_manager.c:error:no-previous-prototype-for-ps3_hard_reset_to_ready | |-- drivers-scsi-linkdata-ps3stor-ps3_ioctl.c:error:no-previous-prototype-for-ps3_clean_mgr_cmd | |-- drivers-scsi-linkdata-ps3stor-ps3_irq.c:error:PS3_HDD_IOPS_MSIX_VECTORS-defined-but-not-used | |-- drivers-scsi-linkdata-ps3stor-ps3_irq.c:error:PS3_INTERRUPT_CLEAR_IRQ-defined-but-not-used | |-- drivers-scsi-linkdata-ps3stor-ps3_irq.c:error:PS3_INTERRUPT_CMD_DISABLE_ALL_MASK-defined-but-not-used | |-- drivers-scsi-linkdata-ps3stor-ps3_irq.c:error:PS3_INTERRUPT_CMD_ENABLE_MSIX-defined-but-not-used | |-- drivers-scsi-linkdata-ps3stor-ps3_irq.c:error:PS3_INTERRUPT_MASK_DISABLE-defined-but-not-used | |-- drivers-scsi-linkdata-ps3stor-ps3_irq.c:error:PS3_INTERRUPT_STATUS_EXIST_IRQ-defined-but-not-used | |-- drivers-scsi-linkdata-ps3stor-ps3_irq.c:error:PS3_SSD_IOPS_MSIX_VECTORS-defined-but-not-used | |-- drivers-scsi-linkdata-ps3stor-ps3_module_para.c:error:no-previous-prototype-for-ps3_cli_ver_query | |-- drivers-scsi-linkdata-ps3stor-ps3_qos.c:error:no-previous-prototype-for-ps3_cmd_waitq_abort | |-- drivers-scsi-linkdata-ps3stor-ps3_qos.c:error:no-previous-prototype-for-ps3_hba_qos_decision | |-- drivers-scsi-linkdata-ps3stor-ps3_qos.c:error:no-previous-prototype-for-ps3_hba_qos_vd_init | |-- drivers-scsi-linkdata-ps3stor-ps3_qos.c:error:no-previous-prototype-for-ps3_hba_qos_vd_reset | |-- drivers-scsi-linkdata-ps3stor-ps3_qos.c:error:no-previous-prototype-for-ps3_hba_qos_waitq_clear_all | |-- drivers-scsi-linkdata-ps3stor-ps3_qos.c:error:no-previous-prototype-for-ps3_hba_qos_waitq_notify | |-- drivers-scsi-linkdata-ps3stor-ps3_qos.c:error:no-previous-prototype-for-ps3_hba_qos_waitq_poll | |-- drivers-scsi-linkdata-ps3stor-ps3_qos.c:error:no-previous-prototype-for-ps3_pd_quota_waitq_clean | |-- drivers-scsi-linkdata-ps3stor-ps3_qos.c:error:no-previous-prototype-for-ps3_pd_quota_waitq_clear_all | |-- drivers-scsi-linkdata-ps3stor-ps3_qos.c:error:no-previous-prototype-for-ps3_qos_all_pd_rc_get | |-- drivers-scsi-linkdata-ps3stor-ps3_qos.c:error:no-previous-prototype-for-ps3_qos_cmd_waitq_get | |-- drivers-scsi-linkdata-ps3stor-ps3_qos.c:error:no-previous-prototype-for-ps3_qos_exclusive_cmdword_get | |-- drivers-scsi-linkdata-ps3stor-ps3_qos.c:error:no-previous-prototype-for-ps3_qos_mgrq_resend | |-- drivers-scsi-linkdata-ps3stor-ps3_qos.c:error:no-previous-prototype-for-ps3_qos_pd_waitq_ratio_update | |-- drivers-scsi-linkdata-ps3stor-ps3_qos.c:error:no-previous-prototype-for-ps3_qos_tg_decision | |-- drivers-scsi-linkdata-ps3stor-ps3_qos.c:error:no-previous-prototype-for-ps3_qos_vd_cmdword_get | |-- drivers-scsi-linkdata-ps3stor-ps3_qos.c:error:no-previous-prototype-for-ps3_raid_qos_decision | |-- drivers-scsi-linkdata-ps3stor-ps3_qos.c:error:no-previous-prototype-for-ps3_raid_qos_waitq_abort | |-- drivers-scsi-linkdata-ps3stor-ps3_qos.c:error:no-previous-prototype-for-ps3_raid_qos_waitq_clear_all | |-- drivers-scsi-linkdata-ps3stor-ps3_qos.c:error:no-previous-prototype-for-ps3_raid_qos_waitq_notify | |-- drivers-scsi-linkdata-ps3stor-ps3_qos.c:error:no-previous-prototype-for-ps3_raid_qos_waitq_poll | |-- drivers-scsi-linkdata-ps3stor-ps3_r1x_write_lock.c:error:no-previous-prototype-for-ps3_r1x_conflict_queue_hash_bit_lock | |-- drivers-scsi-linkdata-ps3stor-ps3_r1x_write_lock.c:error:no-previous-prototype-for-ps3_r1x_hash_bit_check | |-- drivers-scsi-linkdata-ps3stor-ps3_r1x_write_lock.c:error:no-previous-prototype-for-ps3_r1x_hash_bit_lock | |-- drivers-scsi-linkdata-ps3stor-ps3_r1x_write_lock.c:error:no-previous-prototype-for-ps3_r1x_hash_bit_unlock | |-- drivers-scsi-linkdata-ps3stor-ps3_r1x_write_lock.c:error:no-previous-prototype-for-ps3_r1x_hash_range_lock | |-- drivers-scsi-linkdata-ps3stor-ps3_r1x_write_lock.c:error:no-previous-prototype-for-ps3_r1x_hash_range_unlock | |-- drivers-scsi-linkdata-ps3stor-ps3_r1x_write_lock.c:error:no-previous-prototype-for-ps3_range_check_and_insert | |-- drivers-scsi-linkdata-ps3stor-ps3_rb_tree.c:error:no-previous-prototype-for-rbtDelNodeDo | |-- drivers-scsi-linkdata-ps3stor-ps3_recovery.c:error:no-previous-prototype-for-ps3_hard_recovery_state_finish | |-- drivers-scsi-linkdata-ps3stor-ps3_recovery.c:error:no-previous-prototype-for-ps3_recovery_context_alloc | |-- drivers-scsi-linkdata-ps3stor-ps3_recovery.c:error:no-previous-prototype-for-ps3_recovery_context_delete | |-- drivers-scsi-linkdata-ps3stor-ps3_recovery.c:error:no-previous-prototype-for-ps3_recovery_context_free | |-- drivers-scsi-linkdata-ps3stor-ps3_recovery.c:error:no-previous-prototype-for-ps3_recovery_irq_queue_destroy | |-- drivers-scsi-linkdata-ps3stor-ps3_recovery.c:error:no-previous-prototype-for-ps3_recovery_state_transfer | |-- drivers-scsi-linkdata-ps3stor-ps3_sas_transport.c:error:no-previous-prototype-for-ps3_sas_update_phy_info | |-- drivers-scsi-linkdata-ps3stor-ps3_scsi_cmd_err.c:error:no-previous-prototype-for-ps3_set_task_manager_busy | `-- drivers-scsi-linkdata-ps3stor-ps3_scsi_cmd_err.c:error:no-previous-prototype-for-ps3_wait_for_outstanding_complete |-- loongarch-allnoconfig | `-- arch-loongarch-mm-cache.c:warning:variable-way_size-set-but-not-used |-- loongarch-allyesconfig | |-- arch-loongarch-mm-cache.c:warning:variable-way_size-set-but-not-used | |-- drivers-scsi-linkdata-ps3stor-.-linux-ps3_base.c:error:no-previous-prototype-for-ps3_pci_init | |-- drivers-scsi-linkdata-ps3stor-.-linux-ps3_base.c:error:no-previous-prototype-for-ps3_pci_init_complete | |-- drivers-scsi-linkdata-ps3stor-.-linux-ps3_base.c:error:no-previous-prototype-for-ps3_pci_init_complete_exit | |-- drivers-scsi-linkdata-ps3stor-.-linux-ps3_cli.c:error:function-ps3stor_cli_printf-might-be-a-candidate-for-gnu_printf-format-attribute | |-- drivers-scsi-linkdata-ps3stor-.-linux-ps3_cli_debug.c:error:no-previous-prototype-for-ps3_dump_context_show | |-- drivers-scsi-linkdata-ps3stor-.-linux-ps3_dump.c:error:no-previous-prototype-for-ps3_dump_file_close | |-- drivers-scsi-linkdata-ps3stor-.-linux-ps3_dump.c:error:no-previous-prototype-for-ps3_dump_file_open | |-- drivers-scsi-linkdata-ps3stor-.-linux-ps3_dump.c:error:no-previous-prototype-for-ps3_dump_file_write | |-- drivers-scsi-linkdata-ps3stor-.-linux-ps3_dump.c:error:no-previous-prototype-for-ps3_dump_filename_build | |-- drivers-scsi-linkdata-ps3stor-.-linux-ps3_dump.c:error:no-previous-prototype-for-ps3_dump_local_time | |-- drivers-scsi-linkdata-ps3stor-ps3_cmd_complete.c:error:no-previous-prototype-for-ps3_resp_status_convert | |-- drivers-scsi-linkdata-ps3stor-ps3_cmd_complete.c:error:no-previous-prototype-for-ps3_trigger_irq_poll | |-- drivers-scsi-linkdata-ps3stor-ps3_cmd_statistics.c:error:no-previous-prototype-for-ps3_cmd_stat_content_clear | |-- drivers-scsi-linkdata-ps3stor-ps3_cmd_statistics.c:error:no-previous-prototype-for-ps3_io_recv_ok_stat_inc | |-- drivers-scsi-linkdata-ps3stor-ps3_debug.c:error:no-previous-prototype-for-ps3_dump_dir_length | |-- drivers-scsi-linkdata-ps3stor-ps3_device_manager.c:error:no-previous-prototype-for-ps3_scsi_private_init_pd | |-- drivers-scsi-linkdata-ps3stor-ps3_device_manager.c:error:no-previous-prototype-for-ps3_scsi_private_init_vd | |-- drivers-scsi-linkdata-ps3stor-ps3_device_manager_sas.c:error:no-previous-prototype-for-ps3_sas_expander_phys_refresh | |-- drivers-scsi-linkdata-ps3stor-ps3_instance_manager.c:error:snprintf-output-may-be-truncated-before-the-last-format-character | |-- drivers-scsi-linkdata-ps3stor-ps3_ioc_adp.c:error:no-previous-prototype-for-ps3_ioc_resource_prepare_hba | |-- drivers-scsi-linkdata-ps3stor-ps3_ioc_adp.c:error:no-previous-prototype-for-ps3_ioc_resource_prepare_raid | |-- drivers-scsi-linkdata-ps3stor-ps3_ioc_adp.c:error:no-previous-prototype-for-ps3_ioc_resource_prepare_switch | |-- drivers-scsi-linkdata-ps3stor-ps3_ioc_manager.c:error:no-previous-prototype-for-ps3_hard_reset_to_ready | |-- drivers-scsi-linkdata-ps3stor-ps3_ioctl.c:error:no-previous-prototype-for-ps3_clean_mgr_cmd | |-- drivers-scsi-linkdata-ps3stor-ps3_irq.c:error:PS3_HDD_IOPS_MSIX_VECTORS-defined-but-not-used | |-- drivers-scsi-linkdata-ps3stor-ps3_irq.c:error:PS3_INTERRUPT_CLEAR_IRQ-defined-but-not-used | |-- drivers-scsi-linkdata-ps3stor-ps3_irq.c:error:PS3_INTERRUPT_CMD_DISABLE_ALL_MASK-defined-but-not-used | |-- drivers-scsi-linkdata-ps3stor-ps3_irq.c:error:PS3_INTERRUPT_CMD_ENABLE_MSIX-defined-but-not-used | |-- drivers-scsi-linkdata-ps3stor-ps3_irq.c:error:PS3_INTERRUPT_MASK_DISABLE-defined-but-not-used | |-- drivers-scsi-linkdata-ps3stor-ps3_irq.c:error:PS3_INTERRUPT_STATUS_EXIST_IRQ-defined-but-not-used | |-- drivers-scsi-linkdata-ps3stor-ps3_irq.c:error:PS3_SSD_IOPS_MSIX_VECTORS-defined-but-not-used | |-- drivers-scsi-linkdata-ps3stor-ps3_module_para.c:error:no-previous-prototype-for-ps3_cli_ver_query | |-- drivers-scsi-linkdata-ps3stor-ps3_qos.c:error:no-previous-prototype-for-ps3_cmd_waitq_abort | |-- drivers-scsi-linkdata-ps3stor-ps3_qos.c:error:no-previous-prototype-for-ps3_hba_qos_decision | |-- drivers-scsi-linkdata-ps3stor-ps3_qos.c:error:no-previous-prototype-for-ps3_hba_qos_vd_init | |-- drivers-scsi-linkdata-ps3stor-ps3_qos.c:error:no-previous-prototype-for-ps3_hba_qos_vd_reset | |-- drivers-scsi-linkdata-ps3stor-ps3_qos.c:error:no-previous-prototype-for-ps3_hba_qos_waitq_clear_all | |-- drivers-scsi-linkdata-ps3stor-ps3_qos.c:error:no-previous-prototype-for-ps3_hba_qos_waitq_notify | |-- drivers-scsi-linkdata-ps3stor-ps3_qos.c:error:no-previous-prototype-for-ps3_hba_qos_waitq_poll | |-- drivers-scsi-linkdata-ps3stor-ps3_qos.c:error:no-previous-prototype-for-ps3_pd_quota_waitq_clean | |-- drivers-scsi-linkdata-ps3stor-ps3_qos.c:error:no-previous-prototype-for-ps3_pd_quota_waitq_clear_all | |-- drivers-scsi-linkdata-ps3stor-ps3_qos.c:error:no-previous-prototype-for-ps3_qos_all_pd_rc_get | |-- drivers-scsi-linkdata-ps3stor-ps3_qos.c:error:no-previous-prototype-for-ps3_qos_cmd_waitq_get | |-- drivers-scsi-linkdata-ps3stor-ps3_qos.c:error:no-previous-prototype-for-ps3_qos_exclusive_cmdword_get | |-- drivers-scsi-linkdata-ps3stor-ps3_qos.c:error:no-previous-prototype-for-ps3_qos_mgrq_resend | |-- drivers-scsi-linkdata-ps3stor-ps3_qos.c:error:no-previous-prototype-for-ps3_qos_pd_waitq_ratio_update | |-- drivers-scsi-linkdata-ps3stor-ps3_qos.c:error:no-previous-prototype-for-ps3_qos_tg_decision | |-- drivers-scsi-linkdata-ps3stor-ps3_qos.c:error:no-previous-prototype-for-ps3_qos_vd_cmdword_get | |-- drivers-scsi-linkdata-ps3stor-ps3_qos.c:error:no-previous-prototype-for-ps3_raid_qos_decision | |-- drivers-scsi-linkdata-ps3stor-ps3_qos.c:error:no-previous-prototype-for-ps3_raid_qos_waitq_abort | |-- drivers-scsi-linkdata-ps3stor-ps3_qos.c:error:no-previous-prototype-for-ps3_raid_qos_waitq_clear_all | |-- drivers-scsi-linkdata-ps3stor-ps3_qos.c:error:no-previous-prototype-for-ps3_raid_qos_waitq_notify | |-- drivers-scsi-linkdata-ps3stor-ps3_qos.c:error:no-previous-prototype-for-ps3_raid_qos_waitq_poll | |-- drivers-scsi-linkdata-ps3stor-ps3_r1x_write_lock.c:error:no-previous-prototype-for-ps3_r1x_conflict_queue_hash_bit_lock | |-- drivers-scsi-linkdata-ps3stor-ps3_r1x_write_lock.c:error:no-previous-prototype-for-ps3_r1x_hash_bit_check | |-- drivers-scsi-linkdata-ps3stor-ps3_r1x_write_lock.c:error:no-previous-prototype-for-ps3_r1x_hash_bit_lock | |-- drivers-scsi-linkdata-ps3stor-ps3_r1x_write_lock.c:error:no-previous-prototype-for-ps3_r1x_hash_bit_unlock | |-- drivers-scsi-linkdata-ps3stor-ps3_r1x_write_lock.c:error:no-previous-prototype-for-ps3_r1x_hash_range_lock | |-- drivers-scsi-linkdata-ps3stor-ps3_r1x_write_lock.c:error:no-previous-prototype-for-ps3_r1x_hash_range_unlock | |-- drivers-scsi-linkdata-ps3stor-ps3_r1x_write_lock.c:error:no-previous-prototype-for-ps3_range_check_and_insert | |-- drivers-scsi-linkdata-ps3stor-ps3_rb_tree.c:error:no-previous-prototype-for-rbtDelNodeDo | |-- drivers-scsi-linkdata-ps3stor-ps3_recovery.c:error:no-previous-prototype-for-ps3_hard_recovery_state_finish | |-- drivers-scsi-linkdata-ps3stor-ps3_recovery.c:error:no-previous-prototype-for-ps3_recovery_context_alloc | |-- drivers-scsi-linkdata-ps3stor-ps3_recovery.c:error:no-previous-prototype-for-ps3_recovery_context_delete | |-- drivers-scsi-linkdata-ps3stor-ps3_recovery.c:error:no-previous-prototype-for-ps3_recovery_context_free | |-- drivers-scsi-linkdata-ps3stor-ps3_recovery.c:error:no-previous-prototype-for-ps3_recovery_irq_queue_destroy | |-- drivers-scsi-linkdata-ps3stor-ps3_recovery.c:error:no-previous-prototype-for-ps3_recovery_state_transfer | |-- drivers-scsi-linkdata-ps3stor-ps3_sas_transport.c:error:no-previous-prototype-for-ps3_sas_update_phy_info | |-- drivers-scsi-linkdata-ps3stor-ps3_scsi_cmd_err.c:error:no-previous-prototype-for-ps3_set_task_manager_busy | `-- drivers-scsi-linkdata-ps3stor-ps3_scsi_cmd_err.c:error:no-previous-prototype-for-ps3_wait_for_outstanding_complete |-- loongarch-defconfig | `-- arch-loongarch-mm-cache.c:warning:variable-way_size-set-but-not-used |-- loongarch-randconfig-001-20250414 | `-- arch-loongarch-mm-cache.c:warning:variable-way_size-set-but-not-used |-- loongarch-randconfig-002-20250414 | `-- arch-loongarch-mm-cache.c:warning:variable-way_size-set-but-not-used |-- x86_64-allnoconfig | |-- kismet:WARNING:unmet-direct-dependencies-detected-for-ACPI_HOTPLUG_IGNORE_OSC-when-selected-by-X86 | `-- mm-oom_kill.c:linux-nmi.h-is-included-more-than-once. |-- x86_64-buildonly-randconfig-002-20250415 | |-- mm-mempolicy.c:warning:writing-byte-into-a-region-of-size | `-- vmlinux.o:warning:objtool:kasan_report:RET-before-UNTRAIN |-- x86_64-defconfig | `-- mm-mempolicy.c:warning:writing-byte-into-a-region-of-size `-- x86_64-randconfig-161-20250415 `-- mm-kasan-kasan_test.c-rcu_uaf_reclaim()-error:dereferencing-freed-memory-fp-(line-) elapsed time: 1456m configs tested: 21 configs skipped: 123 tested configs: arm64 allmodconfig clang-19 arm64 allnoconfig gcc-14.2.0 arm64 defconfig gcc-14.2.0 arm64 randconfig-001-20250414 clang-21 arm64 randconfig-002-20250414 clang-19 arm64 randconfig-003-20250414 gcc-8.5.0 arm64 randconfig-004-20250414 gcc-6.5.0 loongarch allmodconfig gcc-14.2.0 loongarch allnoconfig gcc-14.2.0 loongarch defconfig gcc-14.2.0 loongarch randconfig-001-20250414 gcc-12.4.0 loongarch randconfig-002-20250414 gcc-14.2.0 x86_64 allnoconfig clang-20 x86_64 allyesconfig clang-20 x86_64 buildonly-randconfig-001-20250415 clang-20 x86_64 buildonly-randconfig-002-20250415 gcc-11 x86_64 buildonly-randconfig-003-20250415 gcc-12 x86_64 buildonly-randconfig-004-20250415 clang-20 x86_64 buildonly-randconfig-005-20250415 clang-20 x86_64 buildonly-randconfig-006-20250415 gcc-12 x86_64 defconfig gcc-11 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki

1 0

[PATCH OLK-6.6 00/13] Add HPD, getting EDID, colorbar features in DP function
by Yongbang Shi 15 Apr '25

15 Apr '25

To support DP HPD, edid printing, and colorbar display features based on the Hisislcon DP devices. Arnd Bergmann (1): drm/hisilicon/hibmc: select CONFIG_DRM_DISPLAY_DP_HELPER Baihan Li (9): drm/hisilicon/hibmc: Restructuring the header dp_reg.h drm/hisilicon/hibmc: Add dp serdes cfg to adjust serdes rate, voltage and pre-emphasis drm/hisilicon/hibmc: Add dp serdes cfg in dp process drm/hisilicon/hibmc: Refactor the member of drm_aux in struct hibmc_dp drm/hisilicon/hibmc: Getting connector info and EDID by using AUX channel drm/hisilicon/hibmc: Add colorbar-cfg feature and its debugfs file drm/hisilicon/hibmc: Enable this hot plug detect of irq feature drm/hisilicon/hibmc: Add MSI irq getting and requesting for HPD drm/hisilicon/hibmc: Add vga connector detect functions Douglas Anderson (1): drm: Call drm_atomic_helper_shutdown() at shutdown time for misc drivers Thomas Zimmermann (1): drm/ast: Implement polling for VGA and SIL164 connectors Ville Syrjälä (1): drm/sysfs: Register "ddc" symlink later drivers/gpu/drm/drm_connector.c | 9 ++ drivers/gpu/drm/drm_internal.h | 2 + drivers/gpu/drm/drm_probe_helper.c | 29 ++++ drivers/gpu/drm/drm_sysfs.c | 22 ++- drivers/gpu/drm/hisilicon/hibmc/Kconfig | 2 + drivers/gpu/drm/hisilicon/hibmc/Makefile | 3 +- drivers/gpu/drm/hisilicon/hibmc/dp/dp_aux.c | 16 ++- drivers/gpu/drm/hisilicon/hibmc/dp/dp_comm.h | 10 +- .../gpu/drm/hisilicon/hibmc/dp/dp_config.h | 2 + drivers/gpu/drm/hisilicon/hibmc/dp/dp_hw.c | 91 +++++++++++- drivers/gpu/drm/hisilicon/hibmc/dp/dp_hw.h | 36 +++++ drivers/gpu/drm/hisilicon/hibmc/dp/dp_link.c | 90 +++++++++--- drivers/gpu/drm/hisilicon/hibmc/dp/dp_reg.h | 130 +++++++++++++----- .../gpu/drm/hisilicon/hibmc/dp/dp_serdes.c | 71 ++++++++++ .../drm/hisilicon/hibmc/hibmc_drm_debugfs.c | 104 ++++++++++++++ .../gpu/drm/hisilicon/hibmc/hibmc_drm_dp.c | 74 +++++++++- .../gpu/drm/hisilicon/hibmc/hibmc_drm_drv.c | 91 +++++++++--- .../gpu/drm/hisilicon/hibmc/hibmc_drm_drv.h | 12 ++ .../gpu/drm/hisilicon/hibmc/hibmc_drm_vdac.c | 3 + include/drm/drm_probe_helper.h | 4 + 20 files changed, 702 insertions(+), 99 deletions(-) create mode 100644 drivers/gpu/drm/hisilicon/hibmc/dp/dp_serdes.c create mode 100644 drivers/gpu/drm/hisilicon/hibmc/hibmc_drm_debugfs.c -- 2.33.0

2 14

[PATCH OLK-6.6 0/5] arm64: Add support for FEAT_{LS64, LS64_V}
by Yushan Wang 15 Apr '25

15 Apr '25

From: Hongye Lin <linhongye(a)h-partners.com> driver inclusion category: feature bugzilla: https://gitee.com/openeuler/kernel/issues/IC1F41 ---------------------------------------------------------------------- arm64: Add support for FEAT_{LS64, LS64_V} Yicong Yang (5): arm64: Provide basic EL2 setup for FEAT_{LS64, LS64_V} usage at EL0/1 arm64: Add support for FEAT_{LS64, LS64_V} kselftest/arm64: Add HWCAP test for FEAT_{LS64, LS64_V} arm64: Add ESR.DFSC definition of unsupported exclusive or atomic access KVM: arm64: Handle DABT caused by LS64* instructions on unsupported memory Documentation/arch/arm64/booting.rst | 12 +++ Documentation/arch/arm64/elf_hwcaps.rst | 6 ++ arch/arm64/include/asm/el2_setup.h | 11 +++ arch/arm64/include/asm/esr.h | 8 ++ arch/arm64/include/asm/hwcap.h | 3 + arch/arm64/include/asm/kvm_emulate.h | 1 + arch/arm64/include/uapi/asm/hwcap.h | 6 ++ arch/arm64/kernel/cpufeature.c | 51 +++++++++++++ arch/arm64/kernel/cpuinfo.c | 2 + arch/arm64/kvm/inject_fault.c | 35 +++++++++ arch/arm64/kvm/mmu.c | 22 +++++- arch/arm64/tools/cpucaps | 4 +- tools/testing/selftests/arm64/abi/hwcap.c | 90 +++++++++++++++++++++++ 13 files changed, 248 insertions(+), 3 deletions(-) -- 2.33.0

2 6

[openeuler:openEuler-1.0-LTS] BUILD REGRESSION 75a881466e41d16638b3e857fdb7107a4b9173b5
by kernel test robot 15 Apr '25

15 Apr '25

tree/branch: https://gitee.com/openeuler/kernel.git openEuler-1.0-LTS branch HEAD: 75a881466e41d16638b3e857fdb7107a4b9173b5 !15843 tty: synclink_gt: Fix null-pointer-dereference in slgt_clean() Error/Warning (recently discovered and may have been fixed): https://lore.kernel.org/oe-kbuild-all/202503271858.j6vJ9Bhc-lkp@intel.com https://lore.kernel.org/oe-kbuild/202504081102.ziLuPC5Y-lkp@intel.com arch/x86/entry/entry_64.o: warning: objtool: .entry.text+0x162: unsupported intra-function call arch/x86/entry/entry_64.o: warning: objtool: .entry.text+0x1a2: unsupported intra-function call arch/x86/entry/entry_64.o: warning: objtool: .entry.text+0x1c2: unsupported intra-function call arch/x86/entry/entry_64.o: warning: objtool: .entry.text+0x1d2: unsupported intra-function call arch/x86/entry/entry_64.o: warning: objtool: .entry.text+0x1e1: unsupported intra-function call arch/x86/entry/entry_64.o: warning: objtool: .entry.text+0x1e2: unsupported intra-function call arch/x86/entry/entry_64.o: warning: objtool: If this is a retpoline, please patch it in with alternatives and annotate it with ANNOTATE_NOSPEC_ALTERNATIVE. crypto/proc.o: warning: objtool: missing symbol for section .exit.text drivers/gpu/drm/ttm/ttm_object.c:60: error: Cannot parse struct or union! drivers/pinctrl/core.c:1338: error: Cannot parse struct or union! include/linux/filter.h:332:4: warning: cast between incompatible function types from 'int (* const)(struct bpf_map *, void *)' to 'u64 (*)(u64, u64, u64, u64, u64)' {aka 'long long unsigned int (*)(long long unsigned int, long long unsigned int, long long unsigned int, long long unsigned int, long long unsigned int)'} [-Wcast-function-type] include/linux/filter.h:332:4: warning: cast between incompatible function types from 'int (* const)(struct bpf_map *, void *, void *, u64)' {aka 'int (* const)(struct bpf_map *, void *, void *, long long unsigned int)'} to 'u64 (*)(u64, u64, u64, u64, u64)' {aka 'long long unsigned int (*)(long long unsigned int, long long unsigned int, long long unsigned int, long long unsigned int, long long unsigned int)'} [-Wcast-function-type] include/linux/filter.h:332:4: warning: cast between incompatible function types from 'void * (* const)(struct bpf_map *, void *)' to 'u64 (*)(u64, u64, u64, u64, u64)' {aka 'long long unsigned int (*)(long long unsigned int, long long unsigned int, long long unsigned int, long long unsigned int, long long unsigned int)'} [-Wcast-function-type] init/Kconfig:34: syntax error kernel/hung_task.c:148:7: error: use of undeclared identifier 'sysctl_hung_task_all_cpu_backtrace' mm/page_ext.o: warning: objtool: missing symbol for section .meminit.text Unverified Error/Warning (likely false positive, kindly check if interested): 789 | eprintk("kgdbts: ERROR: beyond end of test on" 795 | eprintk("kgdbts: ERROR: put buffer overflow on" ./samples/mic/mpssd/mpssd.c: 40 linux/version.h not needed. block/blk-throttle.c:2377:1-7: preceding lock on line 2269 drivers/base/regmap/regmap.o: warning: objtool: regmap_raw_read() falls through to next function _regmap_raw_read() drivers/gpu/drm/i915/i915_gem.o: warning: objtool: i915_gem_fault() falls through to next function i915_gem_object_ggtt_pin() drivers/gpu/drm/i915/intel_display.o: warning: objtool: _intel_compute_tile_offset() falls through to next function skl_format_to_fourcc() drivers/gpu/drm/i915/intel_display.o: warning: objtool: skl_plane_stride() falls through to next function skl_plane_ctl() drivers/gpu/drm/i915/vlv_dsi_pll.o: warning: objtool: bxt_dsi_pll_enable() falls through to next function bxt_dsi_reset_clocks() drivers/net/ethernet/intel/e1000/e1000_main.o: warning: objtool: e1000_watchdog() falls through to next function e1000_82547_tx_fifo_stall_task() mm/kasan/kasan_init.c:220: warning: Function parameter or member 'shadow_end' not described in 'kasan_populate_zero_shadow' mm/kasan/kasan_init.c:220: warning: Function parameter or member 'shadow_start' not described in 'kasan_populate_zero_shadow' Error/Warning ids grouped by kconfigs: recent_errors |-- arm64-allmodconfig | |-- mm-kasan-kasan_init.c:warning:Function-parameter-or-member-shadow_end-not-described-in-kasan_populate_zero_shadow | `-- mm-kasan-kasan_init.c:warning:Function-parameter-or-member-shadow_start-not-described-in-kasan_populate_zero_shadow |-- arm64-randconfig-001-20250414 | |-- drivers-pinctrl-core.c:error:Cannot-parse-struct-or-union | |-- eprintk(-kgdbts:ERROR:beyond-end-of-test-on | `-- eprintk(-kgdbts:ERROR:put-buffer-overflow-on |-- arm64-randconfig-002-20250414 | `-- drivers-pinctrl-core.c:error:Cannot-parse-struct-or-union |-- arm64-randconfig-003-20250414 | |-- drivers-pinctrl-core.c:error:Cannot-parse-struct-or-union | |-- include-linux-filter.h:warning:cast-between-incompatible-function-types-from-int-(-const)(struct-bpf_map-void-)-to-u64-(-)(u64-u64-u64-u64-u64)-aka-long-long-unsigned-int-(-)(long-long-unsigned-int-lo | |-- include-linux-filter.h:warning:cast-between-incompatible-function-types-from-int-(-const)(struct-bpf_map-void-void-u64)-aka-int-(-const)(struct-bpf_map-void-void-long-long-unsigned-int)-to-u64-(-)(u64 | |-- include-linux-filter.h:warning:cast-between-incompatible-function-types-from-void-(-const)(struct-bpf_map-void-)-to-u64-(-)(u64-u64-u64-u64-u64)-aka-long-long-unsigned-int-(-)(long-long-unsigned-int-l | |-- mm-kasan-kasan_init.c:warning:Function-parameter-or-member-shadow_end-not-described-in-kasan_populate_zero_shadow | `-- mm-kasan-kasan_init.c:warning:Function-parameter-or-member-shadow_start-not-described-in-kasan_populate_zero_shadow |-- arm64-randconfig-004-20250414 | `-- init-Kconfig:syntax-error |-- arm64-randconfig-053-20250415 | `-- init-Kconfig:syntax-error |-- arm64-randconfig-054-20250415 | `-- init-Kconfig:syntax-error |-- x86_64-allnoconfig | |-- arch-x86-entry-entry_64.o:warning:objtool:.entry.text:unsupported-intra-function-call | |-- mm-vmscan.c:error:implicit-declaration-of-function-kernel_swap_enabled-Werror-Wimplicit-function-declaration | `-- samples-mic-mpssd-mpssd.c:linux-version.h-not-needed. |-- x86_64-allyesconfig | |-- drivers-gpu-drm-ttm-ttm_object.c:error:Cannot-parse-struct-or-union | |-- drivers-pinctrl-core.c:error:Cannot-parse-struct-or-union | |-- mm-kasan-kasan_init.c:warning:Function-parameter-or-member-shadow_end-not-described-in-kasan_populate_zero_shadow | |-- mm-kasan-kasan_init.c:warning:Function-parameter-or-member-shadow_start-not-described-in-kasan_populate_zero_shadow | `-- mm-page_alloc.c:warning:cast-from-int-(-)(unsigned-long-unsigned-long-struct-deferred_args-)-to-ktask_thread_func-(aka-int-(-)(void-void-void-)-)-converts-to-incompatible-function-type |-- x86_64-buildonly-randconfig-001-20250414 | |-- arch-x86-entry-entry_64.o:warning:objtool:.entry.text:unsupported-intra-function-call | |-- arch-x86-entry-entry_64.o:warning:objtool:If-this-is-a-retpoline-please-patch-it-in-with-alternatives-and-annotate-it-with-ANNOTATE_NOSPEC_ALTERNATIVE. | |-- drivers-gpu-drm-ttm-ttm_object.c:error:Cannot-parse-struct-or-union | |-- drivers-pinctrl-core.c:error:Cannot-parse-struct-or-union | `-- mm-vmscan.c:error:implicit-declaration-of-function-kernel_swap_enabled-Werror-Wimplicit-function-declaration |-- x86_64-buildonly-randconfig-002-20250414 | |-- arch-x86-entry-entry_64.o:warning:objtool:.entry.text:unsupported-intra-function-call | |-- arch-x86-entry-entry_64.o:warning:objtool:If-this-is-a-retpoline-please-patch-it-in-with-alternatives-and-annotate-it-with-ANNOTATE_NOSPEC_ALTERNATIVE. | |-- drivers-gpu-drm-ttm-ttm_object.c:error:Cannot-parse-struct-or-union | |-- drivers-pinctrl-core.c:error:Cannot-parse-struct-or-union | `-- mm-vmscan.c:error:implicit-declaration-of-function-kernel_swap_enabled-Werror-Wimplicit-function-declaration |-- x86_64-buildonly-randconfig-003-20250414 | |-- arch-x86-entry-entry_64.o:warning:objtool:.entry.text:unsupported-intra-function-call | |-- arch-x86-entry-entry_64.o:warning:objtool:If-this-is-a-retpoline-please-patch-it-in-with-alternatives-and-annotate-it-with-ANNOTATE_NOSPEC_ALTERNATIVE. | |-- drivers-pinctrl-core.c:error:Cannot-parse-struct-or-union | `-- mm-vmscan.c:error:implicit-declaration-of-function-kernel_swap_enabled-Werror-Wimplicit-function-declaration |-- x86_64-buildonly-randconfig-004-20250414 | |-- drivers-pinctrl-core.c:error:Cannot-parse-struct-or-union | |-- mm-kasan-kasan_init.c:warning:Function-parameter-or-member-shadow_end-not-described-in-kasan_populate_zero_shadow | `-- mm-kasan-kasan_init.c:warning:Function-parameter-or-member-shadow_start-not-described-in-kasan_populate_zero_shadow |-- x86_64-buildonly-randconfig-005-20250414 | |-- arch-x86-entry-entry_64.o:warning:objtool:.entry.text:unsupported-intra-function-call | |-- arch-x86-entry-entry_64.o:warning:objtool:If-this-is-a-retpoline-please-patch-it-in-with-alternatives-and-annotate-it-with-ANNOTATE_NOSPEC_ALTERNATIVE. | |-- drivers-gpu-drm-ttm-ttm_object.c:error:Cannot-parse-struct-or-union | |-- drivers-pinctrl-core.c:error:Cannot-parse-struct-or-union | |-- kernel-hung_task.c:error:use-of-undeclared-identifier-sysctl_hung_task_all_cpu_backtrace | `-- mm-vmscan.c:error:implicit-declaration-of-function-kernel_swap_enabled-Werror-Wimplicit-function-declaration |-- x86_64-buildonly-randconfig-006-20250414 | |-- arch-x86-entry-entry_64.o:warning:objtool:.entry.text:unsupported-intra-function-call | |-- arch-x86-entry-entry_64.o:warning:objtool:If-this-is-a-retpoline-please-patch-it-in-with-alternatives-and-annotate-it-with-ANNOTATE_NOSPEC_ALTERNATIVE. | |-- crypto-proc.o:warning:objtool:missing-symbol-for-section-.exit.text | `-- mm-page_ext.o:warning:objtool:missing-symbol-for-section-.meminit.text |-- x86_64-defconfig | |-- arch-x86-entry-entry_64.o:warning:objtool:.entry.text:unsupported-intra-function-call | |-- arch-x86-entry-entry_64.o:warning:objtool:If-this-is-a-retpoline-please-patch-it-in-with-alternatives-and-annotate-it-with-ANNOTATE_NOSPEC_ALTERNATIVE. | `-- include-asm-generic-bug.h:warning:mcu_ctrl-may-be-used-uninitialized-in-this-function |-- x86_64-randconfig-101-20250415 | |-- arch-x86-entry-entry_64.o:warning:objtool:.entry.text:unsupported-intra-function-call | |-- drivers-net-ethernet-intel-e1000-e1000_main.o:warning:objtool:e1000_watchdog-falls-through-to-next-function-e1000_82547_tx_fifo_stall_task() | |-- drivers-pinctrl-core.c:error:Cannot-parse-struct-or-union | |-- kernel-hung_task.c:error:use-of-undeclared-identifier-sysctl_hung_task_all_cpu_backtrace | |-- mm-kasan-kasan_init.c:warning:Function-parameter-or-member-shadow_end-not-described-in-kasan_populate_zero_shadow | |-- mm-kasan-kasan_init.c:warning:Function-parameter-or-member-shadow_start-not-described-in-kasan_populate_zero_shadow | `-- mm-vmscan.c:error:implicit-declaration-of-function-kernel_swap_enabled-Werror-Wimplicit-function-declaration |-- x86_64-randconfig-102-20250415 | |-- arch-x86-entry-entry_64.o:warning:objtool:.entry.text:unsupported-intra-function-call | |-- arch-x86-entry-entry_64.o:warning:objtool:If-this-is-a-retpoline-please-patch-it-in-with-alternatives-and-annotate-it-with-ANNOTATE_NOSPEC_ALTERNATIVE. | |-- drivers-gpu-drm-ttm-ttm_object.c:error:Cannot-parse-struct-or-union | |-- drivers-pinctrl-core.c:error:Cannot-parse-struct-or-union | |-- mm-kasan-kasan_init.c:warning:Function-parameter-or-member-shadow_end-not-described-in-kasan_populate_zero_shadow | `-- mm-kasan-kasan_init.c:warning:Function-parameter-or-member-shadow_start-not-described-in-kasan_populate_zero_shadow |-- x86_64-randconfig-103-20250415 | |-- arch-x86-entry-entry_64.o:warning:objtool:.entry.text:unsupported-intra-function-call | |-- arch-x86-entry-entry_64.o:warning:objtool:If-this-is-a-retpoline-please-patch-it-in-with-alternatives-and-annotate-it-with-ANNOTATE_NOSPEC_ALTERNATIVE. | |-- block-blk-throttle.c:preceding-lock-on-line | |-- mm-kasan-kasan_init.c:warning:Function-parameter-or-member-shadow_end-not-described-in-kasan_populate_zero_shadow | `-- mm-kasan-kasan_init.c:warning:Function-parameter-or-member-shadow_start-not-described-in-kasan_populate_zero_shadow |-- x86_64-randconfig-104-20250415 | |-- arch-x86-entry-entry_64.o:warning:objtool:.entry.text:unsupported-intra-function-call | |-- arch-x86-entry-entry_64.o:warning:objtool:If-this-is-a-retpoline-please-patch-it-in-with-alternatives-and-annotate-it-with-ANNOTATE_NOSPEC_ALTERNATIVE. | |-- drivers-gpu-drm-i915-i915_gem.o:warning:objtool:i915_gem_fault-falls-through-to-next-function-i915_gem_object_ggtt_pin() | |-- drivers-gpu-drm-i915-intel_display.o:warning:objtool:_intel_compute_tile_offset-falls-through-to-next-function-skl_format_to_fourcc() | |-- drivers-gpu-drm-i915-intel_display.o:warning:objtool:skl_plane_stride-falls-through-to-next-function-skl_plane_ctl() | |-- drivers-gpu-drm-i915-vlv_dsi_pll.o:warning:objtool:bxt_dsi_pll_enable-falls-through-to-next-function-bxt_dsi_reset_clocks() | |-- drivers-gpu-drm-radeon-evergreen_cs.o:warning:objtool:evergreen_surface_check-falls-through-to-next-function-evergreen_cs_track_validate_htile() | |-- drivers-gpu-drm-ttm-ttm_object.c:error:Cannot-parse-struct-or-union | |-- drivers-net-ethernet-intel-e1000-e1000_main.o:warning:objtool:e1000_watchdog-falls-through-to-next-function-e1000_82547_tx_fifo_stall_task() | |-- drivers-pinctrl-core.c:error:Cannot-parse-struct-or-union | |-- kernel-hung_task.c:error:use-of-undeclared-identifier-sysctl_hung_task_all_cpu_backtrace | |-- mm-kasan-kasan_init.c:warning:Function-parameter-or-member-shadow_end-not-described-in-kasan_populate_zero_shadow | `-- mm-kasan-kasan_init.c:warning:Function-parameter-or-member-shadow_start-not-described-in-kasan_populate_zero_shadow |-- x86_64-randconfig-121-20250415 | |-- arch-x86-entry-entry_64.o:warning:objtool:.entry.text:unsupported-intra-function-call | |-- arch-x86-entry-entry_64.o:warning:objtool:If-this-is-a-retpoline-please-patch-it-in-with-alternatives-and-annotate-it-with-ANNOTATE_NOSPEC_ALTERNATIVE. | |-- drivers-gpu-drm-radeon-evergreen_cs.o:warning:objtool:evergreen_surface_check-falls-through-to-next-function-evergreen_cs_track_validate_htile() | |-- drivers-gpu-drm-ttm-ttm_object.c:error:Cannot-parse-struct-or-union | |-- drivers-md-raid5.o:warning:objtool:raid5_compute_sector-falls-through-to-next-function-raid5_compute_blocknr() | |-- drivers-net-ethernet-intel-e1000-e1000_main.o:warning:objtool:e1000_watchdog-falls-through-to-next-function-e1000_82547_tx_fifo_stall_task() | |-- drivers-pinctrl-core.c:error:Cannot-parse-struct-or-union | |-- include-linux-backing-dev.h:sparse:sparse:incompatible-types-in-comparison-expression-(different-address-spaces): | |-- mm-kasan-kasan_init.c:warning:Function-parameter-or-member-shadow_end-not-described-in-kasan_populate_zero_shadow | |-- mm-kasan-kasan_init.c:warning:Function-parameter-or-member-shadow_start-not-described-in-kasan_populate_zero_shadow | `-- mm-vmscan.c:error:implicit-declaration-of-function-kernel_swap_enabled-Werror-Wimplicit-function-declaration |-- x86_64-randconfig-122-20250415 | |-- arch-x86-entry-entry_64.o:warning:objtool:.entry.text:unsupported-intra-function-call | |-- arch-x86-entry-entry_64.o:warning:objtool:If-this-is-a-retpoline-please-patch-it-in-with-alternatives-and-annotate-it-with-ANNOTATE_NOSPEC_ALTERNATIVE. | |-- block-blk-cgroup.c:sparse:sparse:incompatible-types-in-comparison-expression-(different-address-spaces): | |-- drivers-net-ethernet-intel-e1000-e1000_main.o:warning:objtool:e1000_watchdog-falls-through-to-next-function-e1000_82547_tx_fifo_stall_task() | |-- drivers-pinctrl-core.c:error:Cannot-parse-struct-or-union | |-- include-linux-backing-dev.h:sparse:sparse:incompatible-types-in-comparison-expression-(different-address-spaces): | |-- kernel-hung_task.c:error:use-of-undeclared-identifier-sysctl_hung_task_all_cpu_backtrace | |-- mm-kasan-kasan_init.c:warning:Function-parameter-or-member-shadow_end-not-described-in-kasan_populate_zero_shadow | |-- mm-kasan-kasan_init.c:warning:Function-parameter-or-member-shadow_start-not-described-in-kasan_populate_zero_shadow | `-- mm-vmscan.c:error:implicit-declaration-of-function-kernel_swap_enabled-Werror-Wimplicit-function-declaration |-- x86_64-randconfig-123-20250415 | |-- arch-x86-entry-entry_64.o:warning:objtool:.entry.text:unsupported-intra-function-call | |-- arch-x86-entry-entry_64.o:warning:objtool:If-this-is-a-retpoline-please-patch-it-in-with-alternatives-and-annotate-it-with-ANNOTATE_NOSPEC_ALTERNATIVE. | |-- drivers-gpu-drm-ttm-ttm_object.c:error:Cannot-parse-struct-or-union | |-- drivers-md-raid5.o:warning:objtool:raid5_compute_sector-falls-through-to-next-function-raid5_compute_blocknr() | |-- drivers-net-ethernet-intel-e1000-e1000_main.o:warning:objtool:e1000_watchdog-falls-through-to-next-function-e1000_82547_tx_fifo_stall_task() | |-- drivers-pinctrl-core.c:error:Cannot-parse-struct-or-union | |-- include-linux-backing-dev.h:sparse:sparse:incompatible-types-in-comparison-expression-(different-address-spaces): | |-- mm-kasan-kasan_init.c:warning:Function-parameter-or-member-shadow_end-not-described-in-kasan_populate_zero_shadow | |-- mm-kasan-kasan_init.c:warning:Function-parameter-or-member-shadow_start-not-described-in-kasan_populate_zero_shadow | |-- mm-page_alloc.c:warning:cast-from-int-(-)(unsigned-long-unsigned-long-struct-deferred_args-)-to-ktask_thread_func-(aka-int-(-)(void-void-void-)-)-converts-to-incompatible-function-type | `-- mm-vmscan.c:error:implicit-declaration-of-function-kernel_swap_enabled-Werror-Wimplicit-function-declaration `-- x86_64-randconfig-161-20250415 |-- arch-x86-entry-entry_64.o:warning:objtool:.entry.text:unsupported-intra-function-call |-- arch-x86-entry-entry_64.o:warning:objtool:If-this-is-a-retpoline-please-patch-it-in-with-alternatives-and-annotate-it-with-ANNOTATE_NOSPEC_ALTERNATIVE. |-- drivers-base-regmap-regmap.o:warning:objtool:regmap_raw_read-falls-through-to-next-function-_regmap_raw_read() |-- drivers-net-ethernet-intel-e1000-e1000_main.o:warning:objtool:e1000_watchdog-falls-through-to-next-function-e1000_82547_tx_fifo_stall_task() |-- drivers-pinctrl-core.c:error:Cannot-parse-struct-or-union |-- kernel-hung_task.c:error:use-of-undeclared-identifier-sysctl_hung_task_all_cpu_backtrace |-- mm-kasan-kasan_init.c:warning:Function-parameter-or-member-shadow_end-not-described-in-kasan_populate_zero_shadow |-- mm-kasan-kasan_init.c:warning:Function-parameter-or-member-shadow_start-not-described-in-kasan_populate_zero_shadow `-- mm-vmscan.c:error:implicit-declaration-of-function-kernel_swap_enabled-Werror-Wimplicit-function-declaration elapsed time: 1459m configs tested: 16 configs skipped: 129 tested configs: arm64 allmodconfig gcc-14.2.0 arm64 allnoconfig gcc-14.2.0 arm64 defconfig gcc-14.2.0 arm64 randconfig-001-20250414 gcc-14.2.0 arm64 randconfig-002-20250414 gcc-14.2.0 arm64 randconfig-003-20250414 gcc-8.5.0 arm64 randconfig-004-20250414 gcc-6.5.0 x86_64 allnoconfig clang-20 x86_64 allyesconfig clang-20 x86_64 buildonly-randconfig-001-20250414 clang-20 x86_64 buildonly-randconfig-002-20250414 clang-20 x86_64 buildonly-randconfig-003-20250414 clang-20 x86_64 buildonly-randconfig-004-20250414 clang-20 x86_64 buildonly-randconfig-005-20250414 clang-20 x86_64 buildonly-randconfig-006-20250414 gcc-12 x86_64 defconfig gcc-11 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki

1 0

[PATCH OLK-6.6 v2 0/2] CVE-2024-57795
by Liu Jian 15 Apr '25

15 Apr '25

CVE-2024-57795 Zhu Yanjun (2): RDMA/rxe: Remove the direct link to net_device RDMA/rxe: Fix the failure of ibv_query_device() and ibv_query_device_ex() tests drivers/infiniband/sw/rxe/rxe.c | 22 ++++++++++++---------- drivers/infiniband/sw/rxe/rxe.h | 3 ++- drivers/infiniband/sw/rxe/rxe_mcast.c | 22 ++++++++++++++++++++-- drivers/infiniband/sw/rxe/rxe_net.c | 25 ++++++++++++++++++++----- drivers/infiniband/sw/rxe/rxe_verbs.c | 26 +++++++++++++++++++++----- drivers/infiniband/sw/rxe/rxe_verbs.h | 11 ++++++++--- 6 files changed, 83 insertions(+), 26 deletions(-) -- 2.34.1

2 3

[PATCH OLK-6.6] PCI: AER: fix deadlock in do_recovery
by Qi Xi 15 Apr '25

15 Apr '25

From: Govindarajulu Varadarajan <gvaradar(a)cisco.com> hulk inclusion category: bugfix bugzilla: https://gitee.com/openeuler/kernel/issues/IC1ERL -------------------------------- CPU0 CPU1 --------------------------------------------------------------------- __driver_attach() device_lock(&dev->mutex) <--- device mutex lock here driver_probe_device() pci_enable_sriov() pci_iov_add_virtfn() pci_device_add() aer_isr() <--- pci aer error do_recovery() broadcast_error_message() pci_walk_bus() down_read(&pci_bus_sem) <--- rd sem down_write(&pci_bus_sem) <-- stuck on wr sem report_error_detected() device_lock(&dev->mutex)<--- DEAD LOCK This can also happen when aer error occurs while pci_dev->sriov_config() is called. This patch does a pci_bus_walk and adds all the devices to a list. After unlocking (up_read) &pci_bus_sem, we go through the list and call err_handler of the devices with devic_lock() held. This way, we dont try to hold both locks at same time. v2: * Drop patch 1, 2 & 4. * Instead of locking 50+ devices, do get_device() and add them to a list. After unlocking &pci_bus_sem, go through the list call err_handler. v1: * Previous discussion here: https://lkml.org/lkml/2017/9/27/720 [ 70.984091] pcieport 0000:00:02.0: AER: Uncorrected (Non-Fatal) error received: id=0010 [ 70.984112] pcieport 0000:00:02.0: PCIe Bus Error: severity=Uncorrected (Non-Fatal), type=Transaction Layer, id=0010(Requester ID) [ 70.984116] pcieport 0000:00:02.0: device [8086:3c04] error status/mask=00004000/00100000 [ 70.984120] pcieport 0000:00:02.0: [14] Completion Timeout (First) ... [ 107.484190] INFO: task kworker/0:1:76 blocked for more than 30 seconds. [ 107.563619] Not tainted 4.13.0+ #28 [ 107.611618] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 107.705368] kworker/0:1 D 0 76 2 0x80000000 [ 107.771050] Workqueue: events aer_isr [ 107.814895] Call Trace: [ 107.844181] __schedule+0x312/0xa40 [ 107.885928] schedule+0x3d/0x90 [ 107.923506] schedule_preempt_disabled+0x15/0x20 [ 107.978773] __mutex_lock+0x304/0xa30 [ 108.022594] ? dev_printk_emit+0x3b/0x50 [ 108.069534] ? report_error_detected+0xa6/0x210 [ 108.123770] mutex_lock_nested+0x1b/0x20 [ 108.170713] ? mutex_lock_nested+0x1b/0x20 [ 108.219730] report_error_detected+0xa6/0x210 [ 108.271881] ? aer_recover_queue+0xe0/0xe0 [ 108.320904] pci_walk_bus+0x46/0x90 [ 108.362645] ? aer_recover_queue+0xe0/0xe0 [ 108.411658] broadcast_error_message+0xc3/0xf0 [ 108.464835] do_recovery+0x34/0x220 [ 108.506569] ? get_device_error_info+0x92/0x130 [ 108.560785] aer_isr+0x28f/0x3b0 [ 108.599410] process_one_work+0x277/0x6c0 [ 108.647399] worker_thread+0x4d/0x3b0 [ 108.691218] kthread+0x171/0x190 [ 108.729830] ? process_one_work+0x6c0/0x6c0 [ 108.779888] ? kthread_create_on_node+0x40/0x40 [ 108.834110] ret_from_fork+0x2a/0x40 [ 108.876916] INFO: task kworker/0:2:205 blocked for more than 30 seconds. [ 108.957129] Not tainted 4.13.0+ #28 [ 109.005114] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 109.098873] kworker/0:2 D 0 205 2 0x80000000 [ 109.164544] Workqueue: events work_for_cpu_fn [ 109.216681] Call Trace: [ 109.245943] __schedule+0x312/0xa40 [ 109.287687] ? rwsem_down_write_failed+0x308/0x4f0 [ 109.345021] schedule+0x3d/0x90 [ 109.382603] rwsem_down_write_failed+0x30d/0x4f0 [ 109.437869] ? __lock_acquire+0x75c/0x1410 [ 109.486910] call_rwsem_down_write_failed+0x17/0x30 [ 109.545287] ? call_rwsem_down_write_failed+0x17/0x30 [ 109.605752] down_write+0x88/0xb0 [ 109.645410] pci_device_add+0x158/0x240 [ 109.691313] pci_iov_add_virtfn+0x24f/0x340 [ 109.741375] pci_enable_sriov+0x32b/0x420 [ 109.789466] ? pci_read+0x2c/0x30 [ 109.829142] enic_probe+0x5d4/0xff0 [enic] [ 109.878184] ? trace_hardirqs_on+0xd/0x10 [ 109.926180] local_pci_probe+0x42/0xa0 [ 109.971037] work_for_cpu_fn+0x14/0x20 [ 110.015898] process_one_work+0x277/0x6c0 [ 110.063884] worker_thread+0x1d6/0x3b0 [ 110.108750] kthread+0x171/0x190 [ 110.147363] ? process_one_work+0x6c0/0x6c0 [ 110.197426] ? kthread_create_on_node+0x40/0x40 [ 110.251642] ret_from_fork+0x2a/0x40 [ 110.294448] INFO: task systemd-udevd:492 blocked for more than 30 seconds. [ 110.376742] Not tainted 4.13.0+ #28 [ 110.424715] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 110.518457] systemd-udevd D 0 492 444 0x80000180 [ 110.584116] Call Trace: [ 110.613382] __schedule+0x312/0xa40 [ 110.655127] ? wait_for_completion+0x14a/0x1d0 [ 110.708302] schedule+0x3d/0x90 [ 110.745875] schedule_timeout+0x26e/0x5b0 [ 110.793887] ? wait_for_completion+0x14a/0x1d0 [ 110.847068] wait_for_completion+0x169/0x1d0 [ 110.898165] ? wait_for_completion+0x169/0x1d0 [ 110.951354] ? wake_up_q+0x80/0x80 [ 110.992060] flush_work+0x237/0x300 [ 111.033795] ? flush_workqueue_prep_pwqs+0x1b0/0x1b0 [ 111.093224] ? wait_for_completion+0x5a/0x1d0 [ 111.145363] ? flush_work+0x237/0x300 [ 111.189189] work_on_cpu+0x94/0xb0 [ 111.229894] ? work_is_static_object+0x20/0x20 [ 111.283070] ? pci_device_shutdown+0x60/0x60 [ 111.334173] pci_device_probe+0x17a/0x190 [ 111.382163] driver_probe_device+0x2ff/0x450 [ 111.433260] __driver_attach+0x103/0x140 [ 111.480195] ? driver_probe_device+0x450/0x450 [ 111.533381] bus_for_each_dev+0x74/0xb0 [ 111.579276] driver_attach+0x1e/0x20 [ 111.622056] bus_add_driver+0x1ca/0x270 [ 111.667955] ? 0xffffffffc039c000 [ 111.707616] driver_register+0x60/0xe0 [ 111.752472] ? 0xffffffffc039c000 [ 111.792126] __pci_register_driver+0x6b/0x70 [ 111.843275] enic_init_module+0x38/0x1000 [enic] [ 111.898533] do_one_initcall+0x50/0x192 [ 111.944428] ? trace_hardirqs_on+0xd/0x10 [ 111.992408] do_init_module+0x5f/0x1f2 [ 112.037274] load_module+0x1740/0x1f70 [ 112.082148] SYSC_finit_module+0xd7/0xf0 [ 112.129083] ? SYSC_finit_module+0xd7/0xf0 [ 112.178106] SyS_finit_module+0xe/0x10 [ 112.222972] do_syscall_64+0x69/0x180 [ 112.266793] entry_SYSCALL64_slow_path+0x25/0x25 [ 112.322047] RIP: 0033:0x7f3da098b559 [ 112.364826] RSP: 002b:00007ffeb3306a38 EFLAGS: 00000246 ORIG_RAX: 0000000000000139 [ 112.455447] RAX: ffffffffffffffda RBX: 0000557fe41ed3d0 RCX: 00007f3da098b559 [ 112.540860] RDX: 0000000000000000 RSI: 00007f3da14c79c5 RDI: 0000000000000006 [ 112.626281] RBP: 00007f3da14c79c5 R08: 0000000000000000 R09: 00007ffeb3306b50 [ 112.711698] R10: 0000000000000006 R11: 0000000000000246 R12: 0000000000000000 [ 112.797114] R13: 0000557fe420e210 R14: 0000000000020000 R15: 0000557fe2c1ef4a [ 112.882568] Showing all locks held in the system: [ 112.956545] 5 locks held by kworker/0:1/76: [ 113.006616] #0: ("events"){+.+.}, at: [<ffffffffb00b10ed>] process_one_work+0x1ed/0x6c0 [ 113.104535] #1: ((&rpc->dpc_handler)){+.+.}, at: [<ffffffffb00b10ed>] process_one_work+0x1ed/0x6c0 [ 113.213894] #2: (&rpc->rpc_mutex){+.+.}, at: [<ffffffffb0505ca2>] aer_isr+0x32/0x3b0 [ 113.308711] #3: (pci_bus_sem){++++}, at: [<ffffffffb04ea18a>] pci_walk_bus+0x2a/0x90 [ 113.403501] #4: (&dev->mutex){....}, at: [<ffffffffb0505706>] report_error_detected+0xa6/0x210 [ 113.508715] 3 locks held by kworker/0:2/205: [ 113.559808] #0: ("events"){+.+.}, at: [<ffffffffb00b10ed>] process_one_work+0x1ed/0x6c0 [ 113.657718] #1: ((&wfc.work)){+.+.}, at: [<ffffffffb00b10ed>] process_one_work+0x1ed/0x6c0 [ 113.758745] #2: (pci_bus_sem){++++}, at: [<ffffffffb04ec978>] pci_device_add+0x158/0x240 [ 113.857710] 1 lock held by khungtaskd/239: [ 113.906729] #0: (tasklist_lock){.+.+}, at: [<ffffffffb00f07dd>] debug_show_all_locks+0x3d/0x1a0 [ 114.012972] 2 locks held by systemd-udevd/492: [ 114.066148] #0: (&dev->mutex){....}, at: [<ffffffffb06254d5>] __driver_attach+0x55/0x140 [ 114.165107] #1: (&dev->mutex){....}, at: [<ffffffffb06254f2>] __driver_attach+0x72/0x140 [ 114.281879] ============================================= Signed-off-by: Govindarajulu Varadarajan <gvaradar(a)cisco.com> Signed-off-by: Qi Xi <xiqi2(a)huawei.com> --- drivers/pci/pcie/err.c | 48 +++++++++++++++++++++++++++++++++++++++++- 1 file changed, 47 insertions(+), 1 deletion(-) diff --git a/drivers/pci/pcie/err.c b/drivers/pci/pcie/err.c index 705893b5f7b0..1080181c78b7 100644 --- a/drivers/pci/pcie/err.c +++ b/drivers/pci/pcie/err.c @@ -171,6 +171,52 @@ static int report_resume(struct pci_dev *dev, void *data) return 0; } +struct aer_device_list { + struct device *dev; + struct hlist_node node; +}; + +static int aer_get_pci_dev(struct pci_dev *pdev, void *data) +{ + struct hlist_head *hhead = (struct hlist_head *)data; + struct device *dev = &pdev->dev; + struct aer_device_list *entry; + + entry = kmalloc(sizeof(*entry), GFP_KERNEL); + if (!entry) + /* continue with other devices, lets not return error */ + return 0; + + entry->dev = get_device(dev); + hlist_add_head(&entry->node, hhead); + + return 0; +} + +static void aer_pci_walk_bus(struct pci_bus *top, + int (*cb)(struct pci_dev *, void *), + void *result) +{ + HLIST_HEAD(dev_hlist); + struct hlist_node *tmp; + struct aer_device_list *entry; + + pci_walk_bus(top, aer_get_pci_dev, &dev_hlist); + hlist_for_each_entry_safe(entry, tmp, &dev_hlist, node) { + struct pci_dev *pdev = container_of(entry->dev, struct pci_dev, + dev); + int err; + + err = cb(pdev, result); + if (err) + dev_err(entry->dev, "AER: recovery handler failed: %d", + err); + put_device(entry->dev); + hlist_del(&entry->node); + kfree(entry); + } +} + /** * pci_walk_bridge - walk bridges potentially AER affected * @bridge: bridge which may be a Port, an RCEC, or an RCiEP @@ -189,7 +235,7 @@ static void pci_walk_bridge(struct pci_dev *bridge, void *userdata) { if (bridge->subordinate) - pci_walk_bus(bridge->subordinate, cb, userdata); + aer_pci_walk_bus(bridge->subordinate, cb, userdata); else cb(bridge, userdata); } -- 2.33.0

2 1

[PATCH] PCI: AER: fix deadlock in do_recovery
by Qi Xi 15 Apr '25

15 Apr '25

From: Govindarajulu Varadarajan <gvaradar(a)cisco.com> hulk inclusion category: bugfix bugzilla: https://gitee.com/openeuler/kernel/issues/IC1ERL -------------------------------- CPU0 CPU1 --------------------------------------------------------------------- __driver_attach() device_lock(&dev->mutex) <--- device mutex lock here driver_probe_device() pci_enable_sriov() pci_iov_add_virtfn() pci_device_add() aer_isr() <--- pci aer error do_recovery() broadcast_error_message() pci_walk_bus() down_read(&pci_bus_sem) <--- rd sem down_write(&pci_bus_sem) <-- stuck on wr sem report_error_detected() device_lock(&dev->mutex)<--- DEAD LOCK This can also happen when aer error occurs while pci_dev->sriov_config() is called. This patch does a pci_bus_walk and adds all the devices to a list. After unlocking (up_read) &pci_bus_sem, we go through the list and call err_handler of the devices with devic_lock() held. This way, we dont try to hold both locks at same time. v2: * Drop patch 1, 2 & 4. * Instead of locking 50+ devices, do get_device() and add them to a list. After unlocking &pci_bus_sem, go through the list call err_handler. v1: * Previous discussion here: https://lkml.org/lkml/2017/9/27/720 [ 70.984091] pcieport 0000:00:02.0: AER: Uncorrected (Non-Fatal) error received: id=0010 [ 70.984112] pcieport 0000:00:02.0: PCIe Bus Error: severity=Uncorrected (Non-Fatal), type=Transaction Layer, id=0010(Requester ID) [ 70.984116] pcieport 0000:00:02.0: device [8086:3c04] error status/mask=00004000/00100000 [ 70.984120] pcieport 0000:00:02.0: [14] Completion Timeout (First) ... [ 107.484190] INFO: task kworker/0:1:76 blocked for more than 30 seconds. [ 107.563619] Not tainted 4.13.0+ #28 [ 107.611618] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 107.705368] kworker/0:1 D 0 76 2 0x80000000 [ 107.771050] Workqueue: events aer_isr [ 107.814895] Call Trace: [ 107.844181] __schedule+0x312/0xa40 [ 107.885928] schedule+0x3d/0x90 [ 107.923506] schedule_preempt_disabled+0x15/0x20 [ 107.978773] __mutex_lock+0x304/0xa30 [ 108.022594] ? dev_printk_emit+0x3b/0x50 [ 108.069534] ? report_error_detected+0xa6/0x210 [ 108.123770] mutex_lock_nested+0x1b/0x20 [ 108.170713] ? mutex_lock_nested+0x1b/0x20 [ 108.219730] report_error_detected+0xa6/0x210 [ 108.271881] ? aer_recover_queue+0xe0/0xe0 [ 108.320904] pci_walk_bus+0x46/0x90 [ 108.362645] ? aer_recover_queue+0xe0/0xe0 [ 108.411658] broadcast_error_message+0xc3/0xf0 [ 108.464835] do_recovery+0x34/0x220 [ 108.506569] ? get_device_error_info+0x92/0x130 [ 108.560785] aer_isr+0x28f/0x3b0 [ 108.599410] process_one_work+0x277/0x6c0 [ 108.647399] worker_thread+0x4d/0x3b0 [ 108.691218] kthread+0x171/0x190 [ 108.729830] ? process_one_work+0x6c0/0x6c0 [ 108.779888] ? kthread_create_on_node+0x40/0x40 [ 108.834110] ret_from_fork+0x2a/0x40 [ 108.876916] INFO: task kworker/0:2:205 blocked for more than 30 seconds. [ 108.957129] Not tainted 4.13.0+ #28 [ 109.005114] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 109.098873] kworker/0:2 D 0 205 2 0x80000000 [ 109.164544] Workqueue: events work_for_cpu_fn [ 109.216681] Call Trace: [ 109.245943] __schedule+0x312/0xa40 [ 109.287687] ? rwsem_down_write_failed+0x308/0x4f0 [ 109.345021] schedule+0x3d/0x90 [ 109.382603] rwsem_down_write_failed+0x30d/0x4f0 [ 109.437869] ? __lock_acquire+0x75c/0x1410 [ 109.486910] call_rwsem_down_write_failed+0x17/0x30 [ 109.545287] ? call_rwsem_down_write_failed+0x17/0x30 [ 109.605752] down_write+0x88/0xb0 [ 109.645410] pci_device_add+0x158/0x240 [ 109.691313] pci_iov_add_virtfn+0x24f/0x340 [ 109.741375] pci_enable_sriov+0x32b/0x420 [ 109.789466] ? pci_read+0x2c/0x30 [ 109.829142] enic_probe+0x5d4/0xff0 [enic] [ 109.878184] ? trace_hardirqs_on+0xd/0x10 [ 109.926180] local_pci_probe+0x42/0xa0 [ 109.971037] work_for_cpu_fn+0x14/0x20 [ 110.015898] process_one_work+0x277/0x6c0 [ 110.063884] worker_thread+0x1d6/0x3b0 [ 110.108750] kthread+0x171/0x190 [ 110.147363] ? process_one_work+0x6c0/0x6c0 [ 110.197426] ? kthread_create_on_node+0x40/0x40 [ 110.251642] ret_from_fork+0x2a/0x40 [ 110.294448] INFO: task systemd-udevd:492 blocked for more than 30 seconds. [ 110.376742] Not tainted 4.13.0+ #28 [ 110.424715] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 110.518457] systemd-udevd D 0 492 444 0x80000180 [ 110.584116] Call Trace: [ 110.613382] __schedule+0x312/0xa40 [ 110.655127] ? wait_for_completion+0x14a/0x1d0 [ 110.708302] schedule+0x3d/0x90 [ 110.745875] schedule_timeout+0x26e/0x5b0 [ 110.793887] ? wait_for_completion+0x14a/0x1d0 [ 110.847068] wait_for_completion+0x169/0x1d0 [ 110.898165] ? wait_for_completion+0x169/0x1d0 [ 110.951354] ? wake_up_q+0x80/0x80 [ 110.992060] flush_work+0x237/0x300 [ 111.033795] ? flush_workqueue_prep_pwqs+0x1b0/0x1b0 [ 111.093224] ? wait_for_completion+0x5a/0x1d0 [ 111.145363] ? flush_work+0x237/0x300 [ 111.189189] work_on_cpu+0x94/0xb0 [ 111.229894] ? work_is_static_object+0x20/0x20 [ 111.283070] ? pci_device_shutdown+0x60/0x60 [ 111.334173] pci_device_probe+0x17a/0x190 [ 111.382163] driver_probe_device+0x2ff/0x450 [ 111.433260] __driver_attach+0x103/0x140 [ 111.480195] ? driver_probe_device+0x450/0x450 [ 111.533381] bus_for_each_dev+0x74/0xb0 [ 111.579276] driver_attach+0x1e/0x20 [ 111.622056] bus_add_driver+0x1ca/0x270 [ 111.667955] ? 0xffffffffc039c000 [ 111.707616] driver_register+0x60/0xe0 [ 111.752472] ? 0xffffffffc039c000 [ 111.792126] __pci_register_driver+0x6b/0x70 [ 111.843275] enic_init_module+0x38/0x1000 [enic] [ 111.898533] do_one_initcall+0x50/0x192 [ 111.944428] ? trace_hardirqs_on+0xd/0x10 [ 111.992408] do_init_module+0x5f/0x1f2 [ 112.037274] load_module+0x1740/0x1f70 [ 112.082148] SYSC_finit_module+0xd7/0xf0 [ 112.129083] ? SYSC_finit_module+0xd7/0xf0 [ 112.178106] SyS_finit_module+0xe/0x10 [ 112.222972] do_syscall_64+0x69/0x180 [ 112.266793] entry_SYSCALL64_slow_path+0x25/0x25 [ 112.322047] RIP: 0033:0x7f3da098b559 [ 112.364826] RSP: 002b:00007ffeb3306a38 EFLAGS: 00000246 ORIG_RAX: 0000000000000139 [ 112.455447] RAX: ffffffffffffffda RBX: 0000557fe41ed3d0 RCX: 00007f3da098b559 [ 112.540860] RDX: 0000000000000000 RSI: 00007f3da14c79c5 RDI: 0000000000000006 [ 112.626281] RBP: 00007f3da14c79c5 R08: 0000000000000000 R09: 00007ffeb3306b50 [ 112.711698] R10: 0000000000000006 R11: 0000000000000246 R12: 0000000000000000 [ 112.797114] R13: 0000557fe420e210 R14: 0000000000020000 R15: 0000557fe2c1ef4a [ 112.882568] Showing all locks held in the system: [ 112.956545] 5 locks held by kworker/0:1/76: [ 113.006616] #0: ("events"){+.+.}, at: [<ffffffffb00b10ed>] process_one_work+0x1ed/0x6c0 [ 113.104535] #1: ((&rpc->dpc_handler)){+.+.}, at: [<ffffffffb00b10ed>] process_one_work+0x1ed/0x6c0 [ 113.213894] #2: (&rpc->rpc_mutex){+.+.}, at: [<ffffffffb0505ca2>] aer_isr+0x32/0x3b0 [ 113.308711] #3: (pci_bus_sem){++++}, at: [<ffffffffb04ea18a>] pci_walk_bus+0x2a/0x90 [ 113.403501] #4: (&dev->mutex){....}, at: [<ffffffffb0505706>] report_error_detected+0xa6/0x210 [ 113.508715] 3 locks held by kworker/0:2/205: [ 113.559808] #0: ("events"){+.+.}, at: [<ffffffffb00b10ed>] process_one_work+0x1ed/0x6c0 [ 113.657718] #1: ((&wfc.work)){+.+.}, at: [<ffffffffb00b10ed>] process_one_work+0x1ed/0x6c0 [ 113.758745] #2: (pci_bus_sem){++++}, at: [<ffffffffb04ec978>] pci_device_add+0x158/0x240 [ 113.857710] 1 lock held by khungtaskd/239: [ 113.906729] #0: (tasklist_lock){.+.+}, at: [<ffffffffb00f07dd>] debug_show_all_locks+0x3d/0x1a0 [ 114.012972] 2 locks held by systemd-udevd/492: [ 114.066148] #0: (&dev->mutex){....}, at: [<ffffffffb06254d5>] __driver_attach+0x55/0x140 [ 114.165107] #1: (&dev->mutex){....}, at: [<ffffffffb06254f2>] __driver_attach+0x72/0x140 [ 114.281879] ============================================= Signed-off-by: Govindarajulu Varadarajan <gvaradar(a)cisco.com> Signed-off-by: Qi Xi <xiqi2(a)huawei.com> --- drivers/pci/pcie/err.c | 48 +++++++++++++++++++++++++++++++++++++++++- 1 file changed, 47 insertions(+), 1 deletion(-) diff --git a/drivers/pci/pcie/err.c b/drivers/pci/pcie/err.c index 705893b5f7b0..1080181c78b7 100644 --- a/drivers/pci/pcie/err.c +++ b/drivers/pci/pcie/err.c @@ -171,6 +171,52 @@ static int report_resume(struct pci_dev *dev, void *data) return 0; } +struct aer_device_list { + struct device *dev; + struct hlist_node node; +}; + +static int aer_get_pci_dev(struct pci_dev *pdev, void *data) +{ + struct hlist_head *hhead = (struct hlist_head *)data; + struct device *dev = &pdev->dev; + struct aer_device_list *entry; + + entry = kmalloc(sizeof(*entry), GFP_KERNEL); + if (!entry) + /* continue with other devices, lets not return error */ + return 0; + + entry->dev = get_device(dev); + hlist_add_head(&entry->node, hhead); + + return 0; +} + +static void aer_pci_walk_bus(struct pci_bus *top, + int (*cb)(struct pci_dev *, void *), + void *result) +{ + HLIST_HEAD(dev_hlist); + struct hlist_node *tmp; + struct aer_device_list *entry; + + pci_walk_bus(top, aer_get_pci_dev, &dev_hlist); + hlist_for_each_entry_safe(entry, tmp, &dev_hlist, node) { + struct pci_dev *pdev = container_of(entry->dev, struct pci_dev, + dev); + int err; + + err = cb(pdev, result); + if (err) + dev_err(entry->dev, "AER: recovery handler failed: %d", + err); + put_device(entry->dev); + hlist_del(&entry->node); + kfree(entry); + } +} + /** * pci_walk_bridge - walk bridges potentially AER affected * @bridge: bridge which may be a Port, an RCEC, or an RCiEP @@ -189,7 +235,7 @@ static void pci_walk_bridge(struct pci_dev *bridge, void *userdata) { if (bridge->subordinate) - pci_walk_bus(bridge->subordinate, cb, userdata); + aer_pci_walk_bus(bridge->subordinate, cb, userdata); else cb(bridge, userdata); } -- 2.33.0

1 0

[PATCH OLK-6.6] ASoC: soc-pcm: don't use soc_pcm_ret() on .prepare callback
by Qi Xi 15 Apr '25

15 Apr '25

From: Kuninori Morimoto <kuninori.morimoto.gx(a)renesas.com> mainline inclusion from mainline-v6.14-rc1 commit 301c26a018acb94dd537a4418cefa0f654500c6f category: bugfix bugzilla: https://gitee.com/src-openeuler/kernel/issues/IBRED3 CVE: CVE-2024-58077 Reference: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?… -------------------------------- commit 1f5664351410 ("ASoC: lower "no backend DAIs enabled for ... Port" log severity") ignores -EINVAL error message on common soc_pcm_ret(). It is used from many functions, ignoring -EINVAL is over-kill. The reason why -EINVAL was ignored was it really should only be used upon invalid parameters coming from userspace and in that case we don't want to log an error since we do not want to give userspace a way to do a denial-of-service attack on the syslog / diskspace. So don't use soc_pcm_ret() on .prepare callback is better idea. Link: https://lore.kernel.org/r/87v7vptzap.wl-kuninori.morimoto.gx@renesas.com Cc: Hans de Goede <hdegoede(a)redhat.com> Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx(a)renesas.com> Link: https://patch.msgid.link/87bjxg8jju.wl-kuninori.morimoto.gx@renesas.com Signed-off-by: Mark Brown <broonie(a)kernel.org> Signed-off-by: Qi Xi <xiqi2(a)huawei.com> --- sound/soc/soc-pcm.c | 32 ++++++++++++++++++++++++++++---- 1 file changed, 28 insertions(+), 4 deletions(-) diff --git a/sound/soc/soc-pcm.c b/sound/soc/soc-pcm.c index 511446a30c05..60248a6820aa 100644 --- a/sound/soc/soc-pcm.c +++ b/sound/soc/soc-pcm.c @@ -38,7 +38,6 @@ static inline int _soc_pcm_ret(struct snd_soc_pcm_runtime *rtd, switch (ret) { case -EPROBE_DEFER: case -ENOTSUPP: - case -EINVAL: break; default: dev_err(rtd->dev, @@ -902,7 +901,13 @@ static int __soc_pcm_prepare(struct snd_soc_pcm_runtime *rtd, } out: - return soc_pcm_ret(rtd, ret); + /* + * Don't use soc_pcm_ret() on .prepare callback to lower error log severity + * + * We don't want to log an error since we do not want to give userspace a way to do a + * denial-of-service attack on the syslog / diskspace. + */ + return ret; } /* PCM prepare ops for non-DPCM streams */ @@ -914,6 +919,13 @@ static int soc_pcm_prepare(struct snd_pcm_substream *substream) snd_soc_dpcm_mutex_lock(rtd); ret = __soc_pcm_prepare(rtd, substream); snd_soc_dpcm_mutex_unlock(rtd); + + /* + * Don't use soc_pcm_ret() on .prepare callback to lower error log severity + * + * We don't want to log an error since we do not want to give userspace a way to do a + * denial-of-service attack on the syslog / diskspace. + */ return ret; } @@ -2461,7 +2473,13 @@ int dpcm_be_dai_prepare(struct snd_soc_pcm_runtime *fe, int stream) be->dpcm[stream].state = SND_SOC_DPCM_STATE_PREPARE; } - return soc_pcm_ret(fe, ret); + /* + * Don't use soc_pcm_ret() on .prepare callback to lower error log severity + * + * We don't want to log an error since we do not want to give userspace a way to do a + * denial-of-service attack on the syslog / diskspace. + */ + return ret; } static int dpcm_fe_dai_prepare(struct snd_pcm_substream *substream) @@ -2501,7 +2519,13 @@ static int dpcm_fe_dai_prepare(struct snd_pcm_substream *substream) dpcm_set_fe_update_state(fe, stream, SND_SOC_DPCM_UPDATE_NO); snd_soc_dpcm_mutex_unlock(fe); - return soc_pcm_ret(fe, ret); + /* + * Don't use soc_pcm_ret() on .prepare callback to lower error log severity + * + * We don't want to log an error since we do not want to give userspace a way to do a + * denial-of-service attack on the syslog / diskspace. + */ + return ret; } static int dpcm_run_update_shutdown(struct snd_soc_pcm_runtime *fe, int stream) -- 2.33.0

2 1

[PATCH OLK-6.6] PCI: AER: fix deadlock in do_recovery
by Qi Xi 15 Apr '25

15 Apr '25

From: Govindarajulu Varadarajan <gvaradar(a)cisco.com> hulk inclusion category: bugfix bugzilla: https://gitee.com/openeuler/kernel/issues/IC1ERL -------------------------------- CPU0 CPU1 --------------------------------------------------------------------- __driver_attach() device_lock(&dev->mutex) <--- device mutex lock here driver_probe_device() pci_enable_sriov() pci_iov_add_virtfn() pci_device_add() aer_isr() <--- pci aer error do_recovery() broadcast_error_message() pci_walk_bus() down_read(&pci_bus_sem) <--- rd sem down_write(&pci_bus_sem) <-- stuck on wr sem report_error_detected() device_lock(&dev->mutex)<--- DEAD LOCK This can also happen when aer error occurs while pci_dev->sriov_config() is called. This patch does a pci_bus_walk and adds all the devices to a list. After unlocking (up_read) &pci_bus_sem, we go through the list and call err_handler of the devices with devic_lock() held. This way, we dont try to hold both locks at same time. v2: * Drop patch 1, 2 & 4. * Instead of locking 50+ devices, do get_device() and add them to a list. After unlocking &pci_bus_sem, go through the list call err_handler. v1: * Previous discussion here: https://lkml.org/lkml/2017/9/27/720 [ 70.984091] pcieport 0000:00:02.0: AER: Uncorrected (Non-Fatal) error received: id=0010 [ 70.984112] pcieport 0000:00:02.0: PCIe Bus Error: severity=Uncorrected (Non-Fatal), type=Transaction Layer, id=0010(Requester ID) [ 70.984116] pcieport 0000:00:02.0: device [8086:3c04] error status/mask=00004000/00100000 [ 70.984120] pcieport 0000:00:02.0: [14] Completion Timeout (First) ... [ 107.484190] INFO: task kworker/0:1:76 blocked for more than 30 seconds. [ 107.563619] Not tainted 4.13.0+ #28 [ 107.611618] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 107.705368] kworker/0:1 D 0 76 2 0x80000000 [ 107.771050] Workqueue: events aer_isr [ 107.814895] Call Trace: [ 107.844181] __schedule+0x312/0xa40 [ 107.885928] schedule+0x3d/0x90 [ 107.923506] schedule_preempt_disabled+0x15/0x20 [ 107.978773] __mutex_lock+0x304/0xa30 [ 108.022594] ? dev_printk_emit+0x3b/0x50 [ 108.069534] ? report_error_detected+0xa6/0x210 [ 108.123770] mutex_lock_nested+0x1b/0x20 [ 108.170713] ? mutex_lock_nested+0x1b/0x20 [ 108.219730] report_error_detected+0xa6/0x210 [ 108.271881] ? aer_recover_queue+0xe0/0xe0 [ 108.320904] pci_walk_bus+0x46/0x90 [ 108.362645] ? aer_recover_queue+0xe0/0xe0 [ 108.411658] broadcast_error_message+0xc3/0xf0 [ 108.464835] do_recovery+0x34/0x220 [ 108.506569] ? get_device_error_info+0x92/0x130 [ 108.560785] aer_isr+0x28f/0x3b0 [ 108.599410] process_one_work+0x277/0x6c0 [ 108.647399] worker_thread+0x4d/0x3b0 [ 108.691218] kthread+0x171/0x190 [ 108.729830] ? process_one_work+0x6c0/0x6c0 [ 108.779888] ? kthread_create_on_node+0x40/0x40 [ 108.834110] ret_from_fork+0x2a/0x40 [ 108.876916] INFO: task kworker/0:2:205 blocked for more than 30 seconds. [ 108.957129] Not tainted 4.13.0+ #28 [ 109.005114] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 109.098873] kworker/0:2 D 0 205 2 0x80000000 [ 109.164544] Workqueue: events work_for_cpu_fn [ 109.216681] Call Trace: [ 109.245943] __schedule+0x312/0xa40 [ 109.287687] ? rwsem_down_write_failed+0x308/0x4f0 [ 109.345021] schedule+0x3d/0x90 [ 109.382603] rwsem_down_write_failed+0x30d/0x4f0 [ 109.437869] ? __lock_acquire+0x75c/0x1410 [ 109.486910] call_rwsem_down_write_failed+0x17/0x30 [ 109.545287] ? call_rwsem_down_write_failed+0x17/0x30 [ 109.605752] down_write+0x88/0xb0 [ 109.645410] pci_device_add+0x158/0x240 [ 109.691313] pci_iov_add_virtfn+0x24f/0x340 [ 109.741375] pci_enable_sriov+0x32b/0x420 [ 109.789466] ? pci_read+0x2c/0x30 [ 109.829142] enic_probe+0x5d4/0xff0 [enic] [ 109.878184] ? trace_hardirqs_on+0xd/0x10 [ 109.926180] local_pci_probe+0x42/0xa0 [ 109.971037] work_for_cpu_fn+0x14/0x20 [ 110.015898] process_one_work+0x277/0x6c0 [ 110.063884] worker_thread+0x1d6/0x3b0 [ 110.108750] kthread+0x171/0x190 [ 110.147363] ? process_one_work+0x6c0/0x6c0 [ 110.197426] ? kthread_create_on_node+0x40/0x40 [ 110.251642] ret_from_fork+0x2a/0x40 [ 110.294448] INFO: task systemd-udevd:492 blocked for more than 30 seconds. [ 110.376742] Not tainted 4.13.0+ #28 [ 110.424715] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 110.518457] systemd-udevd D 0 492 444 0x80000180 [ 110.584116] Call Trace: [ 110.613382] __schedule+0x312/0xa40 [ 110.655127] ? wait_for_completion+0x14a/0x1d0 [ 110.708302] schedule+0x3d/0x90 [ 110.745875] schedule_timeout+0x26e/0x5b0 [ 110.793887] ? wait_for_completion+0x14a/0x1d0 [ 110.847068] wait_for_completion+0x169/0x1d0 [ 110.898165] ? wait_for_completion+0x169/0x1d0 [ 110.951354] ? wake_up_q+0x80/0x80 [ 110.992060] flush_work+0x237/0x300 [ 111.033795] ? flush_workqueue_prep_pwqs+0x1b0/0x1b0 [ 111.093224] ? wait_for_completion+0x5a/0x1d0 [ 111.145363] ? flush_work+0x237/0x300 [ 111.189189] work_on_cpu+0x94/0xb0 [ 111.229894] ? work_is_static_object+0x20/0x20 [ 111.283070] ? pci_device_shutdown+0x60/0x60 [ 111.334173] pci_device_probe+0x17a/0x190 [ 111.382163] driver_probe_device+0x2ff/0x450 [ 111.433260] __driver_attach+0x103/0x140 [ 111.480195] ? driver_probe_device+0x450/0x450 [ 111.533381] bus_for_each_dev+0x74/0xb0 [ 111.579276] driver_attach+0x1e/0x20 [ 111.622056] bus_add_driver+0x1ca/0x270 [ 111.667955] ? 0xffffffffc039c000 [ 111.707616] driver_register+0x60/0xe0 [ 111.752472] ? 0xffffffffc039c000 [ 111.792126] __pci_register_driver+0x6b/0x70 [ 111.843275] enic_init_module+0x38/0x1000 [enic] [ 111.898533] do_one_initcall+0x50/0x192 [ 111.944428] ? trace_hardirqs_on+0xd/0x10 [ 111.992408] do_init_module+0x5f/0x1f2 [ 112.037274] load_module+0x1740/0x1f70 [ 112.082148] SYSC_finit_module+0xd7/0xf0 [ 112.129083] ? SYSC_finit_module+0xd7/0xf0 [ 112.178106] SyS_finit_module+0xe/0x10 [ 112.222972] do_syscall_64+0x69/0x180 [ 112.266793] entry_SYSCALL64_slow_path+0x25/0x25 [ 112.322047] RIP: 0033:0x7f3da098b559 [ 112.364826] RSP: 002b:00007ffeb3306a38 EFLAGS: 00000246 ORIG_RAX: 0000000000000139 [ 112.455447] RAX: ffffffffffffffda RBX: 0000557fe41ed3d0 RCX: 00007f3da098b559 [ 112.540860] RDX: 0000000000000000 RSI: 00007f3da14c79c5 RDI: 0000000000000006 [ 112.626281] RBP: 00007f3da14c79c5 R08: 0000000000000000 R09: 00007ffeb3306b50 [ 112.711698] R10: 0000000000000006 R11: 0000000000000246 R12: 0000000000000000 [ 112.797114] R13: 0000557fe420e210 R14: 0000000000020000 R15: 0000557fe2c1ef4a [ 112.882568] Showing all locks held in the system: [ 112.956545] 5 locks held by kworker/0:1/76: [ 113.006616] #0: ("events"){+.+.}, at: [<ffffffffb00b10ed>] process_one_work+0x1ed/0x6c0 [ 113.104535] #1: ((&rpc->dpc_handler)){+.+.}, at: [<ffffffffb00b10ed>] process_one_work+0x1ed/0x6c0 [ 113.213894] #2: (&rpc->rpc_mutex){+.+.}, at: [<ffffffffb0505ca2>] aer_isr+0x32/0x3b0 [ 113.308711] #3: (pci_bus_sem){++++}, at: [<ffffffffb04ea18a>] pci_walk_bus+0x2a/0x90 [ 113.403501] #4: (&dev->mutex){....}, at: [<ffffffffb0505706>] report_error_detected+0xa6/0x210 [ 113.508715] 3 locks held by kworker/0:2/205: [ 113.559808] #0: ("events"){+.+.}, at: [<ffffffffb00b10ed>] process_one_work+0x1ed/0x6c0 [ 113.657718] #1: ((&wfc.work)){+.+.}, at: [<ffffffffb00b10ed>] process_one_work+0x1ed/0x6c0 [ 113.758745] #2: (pci_bus_sem){++++}, at: [<ffffffffb04ec978>] pci_device_add+0x158/0x240 [ 113.857710] 1 lock held by khungtaskd/239: [ 113.906729] #0: (tasklist_lock){.+.+}, at: [<ffffffffb00f07dd>] debug_show_all_locks+0x3d/0x1a0 [ 114.012972] 2 locks held by systemd-udevd/492: [ 114.066148] #0: (&dev->mutex){....}, at: [<ffffffffb06254d5>] __driver_attach+0x55/0x140 [ 114.165107] #1: (&dev->mutex){....}, at: [<ffffffffb06254f2>] __driver_attach+0x72/0x140 [ 114.281879] ============================================= Signed-off-by: Govindarajulu Varadarajan <gvaradar(a)cisco.com> Signed-off-by: Qi Xi <xiqi2(a)huawei.com> --- drivers/pci/pcie/err.c | 48 +++++++++++++++++++++++++++++++++++++++++- 1 file changed, 47 insertions(+), 1 deletion(-) diff --git a/drivers/pci/pcie/err.c b/drivers/pci/pcie/err.c index 705893b5f7b0..573dbf4c77e1 100644 --- a/drivers/pci/pcie/err.c +++ b/drivers/pci/pcie/err.c @@ -171,6 +171,52 @@ static int report_resume(struct pci_dev *dev, void *data) return 0; } +struct aer_device_list { + struct device *dev; + struct hlist_node node; +}; + +int aer_get_pci_dev(struct pci_dev *pdev, void *data) +{ + struct hlist_head *hhead = (struct hlist_head *)data; + struct device *dev = &pdev->dev; + struct aer_device_list *entry; + + entry = kmalloc(sizeof(*entry), GFP_KERNEL); + if (!entry) + /* continue with other devices, lets not return error */ + return 0; + + entry->dev = get_device(dev); + hlist_add_head(&entry->node, hhead); + + return 0; +} + +static void aer_pci_walk_bus(struct pci_bus *top, + int (*cb)(struct pci_dev *, void *), + void *result) +{ + HLIST_HEAD(dev_hlist); + struct hlist_node *tmp; + struct aer_device_list *entry; + + pci_walk_bus(top, aer_get_pci_dev, &dev_hlist); + hlist_for_each_entry_safe(entry, tmp, &dev_hlist, node) { + struct pci_dev *pdev = container_of(entry->dev, struct pci_dev, + dev); + int err; + + err = cb(pdev, result); + if (err) + dev_err(entry->dev, "AER: recovery handler failed: %d", + err); + put_device(entry->dev); + hlist_del(&entry->node); + kfree(entry); + } +} + /** * pci_walk_bridge - walk bridges potentially AER affected * @bridge: bridge which may be a Port, an RCEC, or an RCiEP @@ -189,7 +235,7 @@ static void pci_walk_bridge(struct pci_dev *bridge, void *userdata) { if (bridge->subordinate) - pci_walk_bus(bridge->subordinate, cb, userdata); + aer_pci_walk_bus(bridge->subordinate, cb, userdata); else cb(bridge, userdata); } -- 2.33.0

2 1

[PATCH OLK-5.10] iommu/arm-smmu-v3: Fix the extra atc tlb flush
by Zhang Zekun 15 Apr '25

15 Apr '25

hulk inclusion category: bugfix bugzilla: https://gitee.com/openeuler/kernel/issues/IBZUQU ------------------------------------------- The tlb invalidation code for smmu pagetable prefetch problem might cause a extra tlb invalidation for atc. Prevent it from happening. Fixes: 2da3f6871b6e ("iommu/arm-smmu-v3: Reducing the CMD_SYNC times") Signed-off-by: Zhang Zekun <zhangzekun11(a)huawei.com> --- drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3.c | 7 ++++--- drivers/iommu/io-pgtable-arm.c | 2 +- include/linux/io-pgtable.h | 1 + 3 files changed, 6 insertions(+), 4 deletions(-) diff --git a/drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3.c b/drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3.c index cedc1eda7250..89df2034f8f5 100644 --- a/drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3.c +++ b/drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3.c @@ -2311,9 +2311,7 @@ static void arm_smmu_tlb_inv_walk(unsigned long iova, size_t size, size_t granule, void *cookie) { #ifdef CONFIG_HISILICON_ERRATUM_162100602 - struct arm_smmu_domain *smmu_domain = cookie; - - if (!size && smmu_domain->smmu->options & ARM_SMMU_OPT_SYNC_BATCH) { + if (!size) { arm_smmu_tlb_inv_range_domain(iova, granule, granule, true, cookie); return; } @@ -2584,6 +2582,9 @@ static int arm_smmu_domain_finalise(struct iommu_domain *domain, else if (smmu->features & ARM_SMMU_FEAT_BBML2) pgtbl_cfg.quirks |= IO_PGTABLE_QUIRK_ARM_BBML2; + if (smmu_domain->smmu->options & ARM_SMMU_OPT_SYNC_BATCH) + pgtbl_cfg.quirks |= IO_PGTABLE_QUIRK_HISI_ERRATA; + pgtbl_ops = alloc_io_pgtable_ops(fmt, &pgtbl_cfg, smmu_domain); if (!pgtbl_ops) return -ENOMEM; diff --git a/drivers/iommu/io-pgtable-arm.c b/drivers/iommu/io-pgtable-arm.c index dc80f2661ff7..e8a6a38db48f 100644 --- a/drivers/iommu/io-pgtable-arm.c +++ b/drivers/iommu/io-pgtable-arm.c @@ -365,7 +365,7 @@ static int __arm_lpae_map(struct arm_lpae_io_pgtable *data, unsigned long iova, if (pte) __arm_lpae_free_pages(cptep, tblsz, cfg); #ifdef CONFIG_HISILICON_ERRATUM_162100602 - if (lvl <= 2) + if (lvl <= 2 && (cfg->quirks & IO_PGTABLE_QUIRK_HISI_ERRATA)) io_pgtable_tlb_flush_walk(&data->iop, iova, 0, ARM_LPAE_GRANULE(data)); #endif } else if (!cfg->coherent_walk && !(pte & ARM_LPAE_PTE_SW_SYNC)) { diff --git a/include/linux/io-pgtable.h b/include/linux/io-pgtable.h index 27b994e42ec4..7fc863011474 100644 --- a/include/linux/io-pgtable.h +++ b/include/linux/io-pgtable.h @@ -100,6 +100,7 @@ struct io_pgtable_cfg { #define IO_PGTABLE_QUIRK_ARM_HD BIT(6) #define IO_PGTABLE_QUIRK_ARM_BBML1 BIT(7) #define IO_PGTABLE_QUIRK_ARM_BBML2 BIT(8) + #define IO_PGTABLE_QUIRK_HISI_ERRATA BIT(9) unsigned long quirks; unsigned long pgsize_bitmap; unsigned int ias; -- 2.22.0

2 1

[PATCH OLK-5.10] soc: hisilicon: Serialize the online and onfline the acpi devices
by Zhang Zekun 15 Apr '25

15 Apr '25

hulk inclusion category: bugfix bugzilla: https://gitee.com/openeuler/kernel/issues/IC0DU9 ----------------------------------------------- The parallelization of hbm on and off can cause problems, such as the abnormal state of acpi device. Force paralleize the routine of power on/off the hbm device, which can fix various the abnormal state of acpi devices. Fixes: 039ec3f73992 ("soc: hisilicon: hisi_hbmdev: Add power domain control methods") Signed-off-by: Zhang Zekun <zhangzekun11(a)huawei.com> --- drivers/acpi/device_sysfs.c | 8 +++ drivers/acpi/osl.c | 5 ++ drivers/soc/hisilicon/hisi_hbmdev.c | 83 +++++++++++++++++++---------- include/linux/acpi.h | 2 + 4 files changed, 69 insertions(+), 29 deletions(-) diff --git a/drivers/acpi/device_sysfs.c b/drivers/acpi/device_sysfs.c index 57ee8314dfb8..0f0bde3a41f6 100644 --- a/drivers/acpi/device_sysfs.c +++ b/drivers/acpi/device_sysfs.c @@ -359,6 +359,11 @@ static ssize_t power_state_show(struct device *dev, static DEVICE_ATTR_RO(power_state); +static struct acpi_platform_list no_eject_plat_info[] = { + {"HISI ", "HIP11 ", 0, ACPI_SIG_IORT, all_versions, NULL, 0}, + { } +}; + static ssize_t eject_store(struct device *d, struct device_attribute *attr, const char *buf, size_t count) @@ -378,6 +383,9 @@ eject_store(struct device *d, struct device_attribute *attr, if (ACPI_FAILURE(status) || !acpi_device->flags.ejectable) return -ENODEV; + if (acpi_match_platform_list(no_eject_plat_info) >= 0) + return -ENODEV; + get_device(&acpi_device->dev); status = acpi_hotplug_schedule(acpi_device, ACPI_OST_EC_OSPM_EJECT); if (ACPI_SUCCESS(status)) diff --git a/drivers/acpi/osl.c b/drivers/acpi/osl.c index 0418febc5cf2..213eb9b63776 100644 --- a/drivers/acpi/osl.c +++ b/drivers/acpi/osl.c @@ -1194,6 +1194,11 @@ bool acpi_queue_hotplug_work(struct work_struct *work) return queue_work(kacpi_hotplug_wq, work); } +void flush_hotplug_workqueue(void) +{ + flush_workqueue(kacpi_hotplug_wq); +} + acpi_status acpi_os_create_semaphore(u32 max_units, u32 initial_units, acpi_handle * handle) { diff --git a/drivers/soc/hisilicon/hisi_hbmdev.c b/drivers/soc/hisilicon/hisi_hbmdev.c index 7ed874ff2206..cb65da2c5463 100644 --- a/drivers/soc/hisilicon/hisi_hbmdev.c +++ b/drivers/soc/hisilicon/hisi_hbmdev.c @@ -19,6 +19,7 @@ struct cdev_node { struct list_head clist; }; +static struct mutex dev_lock; struct cdev_node cdev_list; static int get_pxm(struct acpi_device *acpi_device, void *arg) @@ -54,21 +55,6 @@ static ssize_t pxms_show(struct device *dev, } static DEVICE_ATTR_RO(pxms); -static int memdev_power_on(struct acpi_device *adev) -{ - acpi_handle handle = adev->handle; - acpi_status status; - - /* Power on and online the devices */ - status = acpi_evaluate_object(handle, "_ON", NULL, NULL); - if (ACPI_FAILURE(status)) { - acpi_handle_warn(handle, "Power on failed (0x%x)\n", status); - return -ENODEV; - } - - return 0; -} - static int hbmdev_check(struct acpi_device *adev, void *arg) { const char *hid = acpi_device_hid(adev); @@ -79,34 +65,61 @@ static int hbmdev_check(struct acpi_device *adev, void *arg) *found = true; return -1; } - - /* There might be devices have not attached */ - if (!adev->handler) - return 0; - - adev->handler->hotplug.demand_offline = true; } return 0; } -static int memdev_power_off(struct acpi_device *adev) +static int memdev_power_on(struct acpi_device *adev) { acpi_handle handle = adev->handle; + struct acpi_device *child; acpi_status status; - acpi_scan_lock_acquire(); - acpi_dev_for_each_child(adev, hbmdev_check, NULL); - acpi_scan_lock_release(); + list_for_each_entry(child, &adev->children, node) { + unsigned long long sta = 0; - /* Eject the devices and power off */ - status = acpi_evaluate_object(handle, "_OFF", NULL, NULL); + status = acpi_evaluate_integer(child->handle, "_STA", NULL, &sta); + if (ACPI_FAILURE(status) || (sta & ACPI_STA_DEVICE_ENABLED)) + return -EINVAL; + } + + /* Power on and online the devices */ + status = acpi_evaluate_object(handle, "_ON", NULL, NULL); if (ACPI_FAILURE(status)) { + acpi_handle_warn(handle, "Power on failed (0x%x)\n", status); return -ENODEV; } + return 0; } +static void memdev_power_off(struct acpi_device *adev) +{ + struct acpi_device *child; + + list_for_each_entry(child, &adev->children, node) { + const char *hid = acpi_device_hid(child); + acpi_status status; + + if (strcmp(hid, ACPI_MEMORY_DEVICE_HID)) + continue; + + if (!child->handler) + continue; + + child->handler->hotplug.demand_offline = true; + + get_device(&child->dev); + status = acpi_hotplug_schedule(child, ACPI_OST_EC_OSPM_EJECT); + if (ACPI_SUCCESS(status)) + continue; + + put_device(&child->dev); + + } +} + static ssize_t state_store(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) { @@ -114,23 +127,33 @@ static ssize_t state_store(struct device *dev, struct device_attribute *attr, const int type = online_type_from_str(buf); int ret; + if (!mutex_trylock(&dev_lock)) + return -EBUSY; + /* Disallow pending on the mutex to avoid potential hung task*/ ret = lock_device_hotplug_sysfs(); - if (ret) + if (ret) { + mutex_unlock(&dev_lock); return ret; + } switch (type) { case STATE_ONLINE: ret = memdev_power_on(adev); break; case STATE_OFFLINE: - ret = memdev_power_off(adev); + memdev_power_off(adev); break; default: break; } + unlock_device_hotplug(); + acpi_os_wait_events_complete(); + flush_hotplug_workqueue(); + + mutex_unlock(&dev_lock); if (ret) return ret; @@ -212,6 +235,8 @@ static int __init hbmdev_init(void) if (acpi_match_platform_list(hbm_plat_info) < 0) return 0; + mutex_init(&dev_lock); + return container_init(); } module_init(hbmdev_init); diff --git a/include/linux/acpi.h b/include/linux/acpi.h index 38ad6478c4b9..0d4f5ccfc059 100644 --- a/include/linux/acpi.h +++ b/include/linux/acpi.h @@ -1416,12 +1416,14 @@ static inline void acpi_init_pcc(void) { } #ifdef CONFIG_ACPI extern int acpi_platform_notify(struct device *dev, enum kobject_action action); +extern void flush_hotplug_workqueue(void); #else static inline int acpi_platform_notify(struct device *dev, enum kobject_action action) { return 0; } +static inline void flush_hotplug_workqueue(void) {} #endif struct acpi_pptt_processor * -- 2.22.0

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[PATCH OLK-5.10] soc: hisilicon: Serialize the online and onfline the acpi devices
by Zhang Zekun 15 Apr '25

15 Apr '25

hulk inclusion category: bugfix bugzilla: https://gitee.com/openeuler/kernel/issues/IC0DU9 ----------------------------------------------- The parallelization of hbm on and off can cause problems, such as the abnormal state of acpi device. Force paralleize the routine of power on/off the hbm device, which can fix various the abnormal state of acpi devices. Signed-off-by: Zhang Zekun <zhangzekun11(a)huawei.com> --- drivers/acpi/device_sysfs.c | 8 +++ drivers/acpi/osl.c | 5 ++ drivers/soc/hisilicon/hisi_hbmdev.c | 83 +++++++++++++++++++---------- include/linux/acpi.h | 2 + 4 files changed, 69 insertions(+), 29 deletions(-) diff --git a/drivers/acpi/device_sysfs.c b/drivers/acpi/device_sysfs.c index 57ee8314dfb8..0f0bde3a41f6 100644 --- a/drivers/acpi/device_sysfs.c +++ b/drivers/acpi/device_sysfs.c @@ -359,6 +359,11 @@ static ssize_t power_state_show(struct device *dev, static DEVICE_ATTR_RO(power_state); +static struct acpi_platform_list no_eject_plat_info[] = { + {"HISI ", "HIP11 ", 0, ACPI_SIG_IORT, all_versions, NULL, 0}, + { } +}; + static ssize_t eject_store(struct device *d, struct device_attribute *attr, const char *buf, size_t count) @@ -378,6 +383,9 @@ eject_store(struct device *d, struct device_attribute *attr, if (ACPI_FAILURE(status) || !acpi_device->flags.ejectable) return -ENODEV; + if (acpi_match_platform_list(no_eject_plat_info) >= 0) + return -ENODEV; + get_device(&acpi_device->dev); status = acpi_hotplug_schedule(acpi_device, ACPI_OST_EC_OSPM_EJECT); if (ACPI_SUCCESS(status)) diff --git a/drivers/acpi/osl.c b/drivers/acpi/osl.c index 0418febc5cf2..213eb9b63776 100644 --- a/drivers/acpi/osl.c +++ b/drivers/acpi/osl.c @@ -1194,6 +1194,11 @@ bool acpi_queue_hotplug_work(struct work_struct *work) return queue_work(kacpi_hotplug_wq, work); } +void flush_hotplug_workqueue(void) +{ + flush_workqueue(kacpi_hotplug_wq); +} + acpi_status acpi_os_create_semaphore(u32 max_units, u32 initial_units, acpi_handle * handle) { diff --git a/drivers/soc/hisilicon/hisi_hbmdev.c b/drivers/soc/hisilicon/hisi_hbmdev.c index 7ed874ff2206..cb65da2c5463 100644 --- a/drivers/soc/hisilicon/hisi_hbmdev.c +++ b/drivers/soc/hisilicon/hisi_hbmdev.c @@ -19,6 +19,7 @@ struct cdev_node { struct list_head clist; }; +static struct mutex dev_lock; struct cdev_node cdev_list; static int get_pxm(struct acpi_device *acpi_device, void *arg) @@ -54,21 +55,6 @@ static ssize_t pxms_show(struct device *dev, } static DEVICE_ATTR_RO(pxms); -static int memdev_power_on(struct acpi_device *adev) -{ - acpi_handle handle = adev->handle; - acpi_status status; - - /* Power on and online the devices */ - status = acpi_evaluate_object(handle, "_ON", NULL, NULL); - if (ACPI_FAILURE(status)) { - acpi_handle_warn(handle, "Power on failed (0x%x)\n", status); - return -ENODEV; - } - - return 0; -} - static int hbmdev_check(struct acpi_device *adev, void *arg) { const char *hid = acpi_device_hid(adev); @@ -79,34 +65,61 @@ static int hbmdev_check(struct acpi_device *adev, void *arg) *found = true; return -1; } - - /* There might be devices have not attached */ - if (!adev->handler) - return 0; - - adev->handler->hotplug.demand_offline = true; } return 0; } -static int memdev_power_off(struct acpi_device *adev) +static int memdev_power_on(struct acpi_device *adev) { acpi_handle handle = adev->handle; + struct acpi_device *child; acpi_status status; - acpi_scan_lock_acquire(); - acpi_dev_for_each_child(adev, hbmdev_check, NULL); - acpi_scan_lock_release(); + list_for_each_entry(child, &adev->children, node) { + unsigned long long sta = 0; - /* Eject the devices and power off */ - status = acpi_evaluate_object(handle, "_OFF", NULL, NULL); + status = acpi_evaluate_integer(child->handle, "_STA", NULL, &sta); + if (ACPI_FAILURE(status) || (sta & ACPI_STA_DEVICE_ENABLED)) + return -EINVAL; + } + + /* Power on and online the devices */ + status = acpi_evaluate_object(handle, "_ON", NULL, NULL); if (ACPI_FAILURE(status)) { + acpi_handle_warn(handle, "Power on failed (0x%x)\n", status); return -ENODEV; } + return 0; } +static void memdev_power_off(struct acpi_device *adev) +{ + struct acpi_device *child; + + list_for_each_entry(child, &adev->children, node) { + const char *hid = acpi_device_hid(child); + acpi_status status; + + if (strcmp(hid, ACPI_MEMORY_DEVICE_HID)) + continue; + + if (!child->handler) + continue; + + child->handler->hotplug.demand_offline = true; + + get_device(&child->dev); + status = acpi_hotplug_schedule(child, ACPI_OST_EC_OSPM_EJECT); + if (ACPI_SUCCESS(status)) + continue; + + put_device(&child->dev); + + } +} + static ssize_t state_store(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) { @@ -114,23 +127,33 @@ static ssize_t state_store(struct device *dev, struct device_attribute *attr, const int type = online_type_from_str(buf); int ret; + if (!mutex_trylock(&dev_lock)) + return -EBUSY; + /* Disallow pending on the mutex to avoid potential hung task*/ ret = lock_device_hotplug_sysfs(); - if (ret) + if (ret) { + mutex_unlock(&dev_lock); return ret; + } switch (type) { case STATE_ONLINE: ret = memdev_power_on(adev); break; case STATE_OFFLINE: - ret = memdev_power_off(adev); + memdev_power_off(adev); break; default: break; } + unlock_device_hotplug(); + acpi_os_wait_events_complete(); + flush_hotplug_workqueue(); + + mutex_unlock(&dev_lock); if (ret) return ret; @@ -212,6 +235,8 @@ static int __init hbmdev_init(void) if (acpi_match_platform_list(hbm_plat_info) < 0) return 0; + mutex_init(&dev_lock); + return container_init(); } module_init(hbmdev_init); diff --git a/include/linux/acpi.h b/include/linux/acpi.h index 38ad6478c4b9..0d4f5ccfc059 100644 --- a/include/linux/acpi.h +++ b/include/linux/acpi.h @@ -1416,12 +1416,14 @@ static inline void acpi_init_pcc(void) { } #ifdef CONFIG_ACPI extern int acpi_platform_notify(struct device *dev, enum kobject_action action); +extern void flush_hotplug_workqueue(void); #else static inline int acpi_platform_notify(struct device *dev, enum kobject_action action) { return 0; } +static inline void flush_hotplug_workqueue(void) {} #endif struct acpi_pptt_processor * -- 2.22.0

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[PATCH OLK-5.10] iommu/arm-smmu-v3: Fix the extra atc tlb flush
by Zhang Zekun 15 Apr '25

15 Apr '25

hulk inclusion category: bugfix bugzilla: https://gitee.com/openeuler/kernel/issues/IBZUQU ------------------------------------------- The tlb invalidation code for smmu pagetable prefetch problem might cause a extra tlb invalidation for atc. Prevent it from happening. Signed-off-by: Zhang Zekun <zhangzekun11(a)huawei.com> --- drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3.c | 7 ++++--- drivers/iommu/io-pgtable-arm.c | 2 +- include/linux/io-pgtable.h | 1 + 3 files changed, 6 insertions(+), 4 deletions(-) diff --git a/drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3.c b/drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3.c index cedc1eda7250..89df2034f8f5 100644 --- a/drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3.c +++ b/drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3.c @@ -2311,9 +2311,7 @@ static void arm_smmu_tlb_inv_walk(unsigned long iova, size_t size, size_t granule, void *cookie) { #ifdef CONFIG_HISILICON_ERRATUM_162100602 - struct arm_smmu_domain *smmu_domain = cookie; - - if (!size && smmu_domain->smmu->options & ARM_SMMU_OPT_SYNC_BATCH) { + if (!size) { arm_smmu_tlb_inv_range_domain(iova, granule, granule, true, cookie); return; } @@ -2584,6 +2582,9 @@ static int arm_smmu_domain_finalise(struct iommu_domain *domain, else if (smmu->features & ARM_SMMU_FEAT_BBML2) pgtbl_cfg.quirks |= IO_PGTABLE_QUIRK_ARM_BBML2; + if (smmu_domain->smmu->options & ARM_SMMU_OPT_SYNC_BATCH) + pgtbl_cfg.quirks |= IO_PGTABLE_QUIRK_HISI_ERRATA; + pgtbl_ops = alloc_io_pgtable_ops(fmt, &pgtbl_cfg, smmu_domain); if (!pgtbl_ops) return -ENOMEM; diff --git a/drivers/iommu/io-pgtable-arm.c b/drivers/iommu/io-pgtable-arm.c index dc80f2661ff7..e8a6a38db48f 100644 --- a/drivers/iommu/io-pgtable-arm.c +++ b/drivers/iommu/io-pgtable-arm.c @@ -365,7 +365,7 @@ static int __arm_lpae_map(struct arm_lpae_io_pgtable *data, unsigned long iova, if (pte) __arm_lpae_free_pages(cptep, tblsz, cfg); #ifdef CONFIG_HISILICON_ERRATUM_162100602 - if (lvl <= 2) + if (lvl <= 2 && (cfg->quirks & IO_PGTABLE_QUIRK_HISI_ERRATA)) io_pgtable_tlb_flush_walk(&data->iop, iova, 0, ARM_LPAE_GRANULE(data)); #endif } else if (!cfg->coherent_walk && !(pte & ARM_LPAE_PTE_SW_SYNC)) { diff --git a/include/linux/io-pgtable.h b/include/linux/io-pgtable.h index 27b994e42ec4..7fc863011474 100644 --- a/include/linux/io-pgtable.h +++ b/include/linux/io-pgtable.h @@ -100,6 +100,7 @@ struct io_pgtable_cfg { #define IO_PGTABLE_QUIRK_ARM_HD BIT(6) #define IO_PGTABLE_QUIRK_ARM_BBML1 BIT(7) #define IO_PGTABLE_QUIRK_ARM_BBML2 BIT(8) + #define IO_PGTABLE_QUIRK_HISI_ERRATA BIT(9) unsigned long quirks; unsigned long pgsize_bitmap; unsigned int ias; -- 2.22.0

2 1

[PATCH OLK-6.6 0/8] LoongArch: sync internal repository 20250414
by Hongchen Zhang 15 Apr '25

15 Apr '25

Ard Biesheuvel (1): objtool: Fix C jump table annotations for Clang Gao Qihang (1): LoongArch: Preserve firmware configuration if ACPI requires. Hongchen Zhang (1): LoongArch: set CONFIG_CPU_HAS_LBT=y Juxin Gao (1): LoongArch: configs: set CONFIG_UNWINDER_ORC=y Ming Wang (1): LoongArch: configs: Disable CONFIG_RT_GROUP_SCHED to prevent cgroup2 issues Tiezhu Yang (3): LoongArch: Handle fp, lsx, lasx and lbt assembly symbols LoongArch: Make some signal and ptrace functions non-static LoongArch: Export some signal functions arch/loongarch/configs/loongson3_defconfig | 3 +- arch/loongarch/include/asm/fpu.h | 6 ++++ arch/loongarch/include/asm/lbt.h | 4 +++ arch/loongarch/kernel/Makefile | 1 + arch/loongarch/kernel/extern.c | 31 ++++++++++++++++++ arch/loongarch/kernel/fpu.S | 6 ++++ arch/loongarch/kernel/lbt.S | 4 +++ arch/loongarch/kernel/ptrace.c | 37 +++++++++++++++------- arch/loongarch/kernel/signal.c | 28 +++------------- arch/loongarch/pci/acpi.c | 14 ++++++-- include/linux/compiler.h | 2 +- tools/objtool/check.c | 7 ++-- tools/objtool/include/objtool/special.h | 2 +- 13 files changed, 103 insertions(+), 42 deletions(-) create mode 100644 arch/loongarch/kernel/extern.c -- 2.43.0

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