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[PATCH OLK-5.10] drm/omap: fix misleading indentation in pixinc()
by Tengda Wu 27 Nov '25

27 Nov '25

From: Arnd Bergmann <arnd(a)arndb.de> mainline inclusion from mainline-v5.13-rc1 commit 417fc6123b4a60c60b770e756cc3e001d764e480 category: bugfix bugzilla: https://gitee.com/openeuler/kernel/issues/ID96N8 Reference: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?… -------------------------------- An old patch added a 'return' statement after each BUG() in this driver, which was necessary at the time, but has become redundant after the BUG() definition was updated to handle this properly. gcc-11 now warns about one such instance, where the 'return' statement was incorrectly indented: drivers/gpu/drm/omapdrm/dss/dispc.c: In function ‘pixinc’: drivers/gpu/drm/omapdrm/dss/dispc.c:2093:9: error: this ‘else’ clause does not guard... [-Werror=misleading-indentation] 2093 | else | ^~~~ drivers/gpu/drm/omapdrm/dss/dispc.c:2095:17: note: ...this statement, but the latter is misleadingly indented as if it were guarded by the ‘else’ 2095 | return 0; | ^~~~~~ Address this by removing the return again and changing the BUG() to be unconditional to make this more intuitive. Fixes: c6eee968d40d ("OMAPDSS: remove compiler warnings when CONFIG_BUG=n") Signed-off-by: Arnd Bergmann <arnd(a)arndb.de> Signed-off-by: Tomi Valkeinen <tomi.valkeinen(a)ideasonboard.com> Link: https://patchwork.freedesktop.org/patch/msgid/20210322164203.827324-1-arnd@… Signed-off-by: Tengda Wu <wutengda2(a)huawei.com> --- drivers/gpu/drm/omapdrm/dss/dispc.c | 5 ++--- 1 file changed, 2 insertions(+), 3 deletions(-) diff --git a/drivers/gpu/drm/omapdrm/dss/dispc.c b/drivers/gpu/drm/omapdrm/dss/dispc.c index 48593932bddf..e06c2c131061 100644 --- a/drivers/gpu/drm/omapdrm/dss/dispc.c +++ b/drivers/gpu/drm/omapdrm/dss/dispc.c @@ -2077,9 +2077,8 @@ static s32 pixinc(int pixels, u8 ps) return 1 + (pixels - 1) * ps; else if (pixels < 0) return 1 - (-pixels + 1) * ps; - else - BUG(); - return 0; + + BUG(); } static void calc_offset(u16 screen_width, u16 width, -- 2.34.1

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[PATCH OLK-6.6] bpf: Sync pending IRQ work before freeing ring buffer
by Tengda Wu 27 Nov '25

27 Nov '25

From: Noorain Eqbal <nooraineqbal(a)gmail.com> stable inclusion from stable-v6.6.117 commit 6451141103547f4efd774e912418a3b4318046c6 category: bugfix bugzilla: https://gitee.com/openeuler/kernel/issues/ID95VB Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id… -------------------------------- [ Upstream commit 4e9077638301816a7d73fa1e1b4c1db4a7e3b59c ] Fix a race where irq_work can be queued in bpf_ringbuf_commit() but the ring buffer is freed before the work executes. In the syzbot reproducer, a BPF program attached to sched_switch triggers bpf_ringbuf_commit(), queuing an irq_work. If the ring buffer is freed before this work executes, the irq_work thread may accesses freed memory. Calling `irq_work_sync(&rb->work)` ensures that all pending irq_work complete before freeing the buffer. Fixes: 457f44363a88 ("bpf: Implement BPF ring buffer and verifier support for it") Reported-by: syzbot+2617fc732430968b45d2(a)syzkaller.appspotmail.com Closes: https://syzkaller.appspot.com/bug?extid=2617fc732430968b45d2 Tested-by: syzbot+2617fc732430968b45d2(a)syzkaller.appspotmail.com Signed-off-by: Noorain Eqbal <nooraineqbal(a)gmail.com> Link: https://lore.kernel.org/r/20251020180301.103366-1-nooraineqbal@gmail.com Signed-off-by: Alexei Starovoitov <ast(a)kernel.org> Signed-off-by: Sasha Levin <sashal(a)kernel.org> Signed-off-by: Tengda Wu <wutengda2(a)huawei.com> --- kernel/bpf/ringbuf.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/kernel/bpf/ringbuf.c b/kernel/bpf/ringbuf.c index 6aff5ee483b6..c0c5e9b313e4 100644 --- a/kernel/bpf/ringbuf.c +++ b/kernel/bpf/ringbuf.c @@ -215,6 +215,8 @@ static struct bpf_map *ringbuf_map_alloc(union bpf_attr *attr) static void bpf_ringbuf_free(struct bpf_ringbuf *rb) { + irq_work_sync(&rb->work); + /* copy pages pointer and nr_pages to local variable, as we are going * to unmap rb itself with vunmap() below */ -- 2.34.1

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[PATCH OLK-5.10] bpf: Sync pending IRQ work before freeing ring buffer
by Tengda Wu 27 Nov '25

27 Nov '25

From: Noorain Eqbal <nooraineqbal(a)gmail.com> mainline inclusion from mainline-v6.18-rc4 commit 4e9077638301816a7d73fa1e1b4c1db4a7e3b59c category: bugfix bugzilla: https://gitee.com/openeuler/kernel/issues/ID95VB Reference: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?… -------------------------------- Fix a race where irq_work can be queued in bpf_ringbuf_commit() but the ring buffer is freed before the work executes. In the syzbot reproducer, a BPF program attached to sched_switch triggers bpf_ringbuf_commit(), queuing an irq_work. If the ring buffer is freed before this work executes, the irq_work thread may accesses freed memory. Calling `irq_work_sync(&rb->work)` ensures that all pending irq_work complete before freeing the buffer. Fixes: 457f44363a88 ("bpf: Implement BPF ring buffer and verifier support for it") Reported-by: syzbot+2617fc732430968b45d2(a)syzkaller.appspotmail.com Closes: https://syzkaller.appspot.com/bug?extid=2617fc732430968b45d2 Tested-by: syzbot+2617fc732430968b45d2(a)syzkaller.appspotmail.com Signed-off-by: Noorain Eqbal <nooraineqbal(a)gmail.com> Link: https://lore.kernel.org/r/20251020180301.103366-1-nooraineqbal@gmail.com Signed-off-by: Alexei Starovoitov <ast(a)kernel.org> Conflicts: kernel/bpf/ringbuf.c [To avoid -Wdeclaration-after-statement warning, move irq_work_sync() after the declaration] Signed-off-by: Tengda Wu <wutengda2(a)huawei.com> --- kernel/bpf/ringbuf.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/kernel/bpf/ringbuf.c b/kernel/bpf/ringbuf.c index 984f4772a01e..3cc55c268137 100644 --- a/kernel/bpf/ringbuf.c +++ b/kernel/bpf/ringbuf.c @@ -207,6 +207,8 @@ static void bpf_ringbuf_free(struct bpf_ringbuf *rb) struct page **pages = rb->pages; int i, nr_pages = rb->nr_pages; + irq_work_sync(&rb->work); + vunmap(rb); for (i = 0; i < nr_pages; i++) __free_page(pages[i]); -- 2.34.1

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[PATCH 0/2] clenup and improve syscall_get_arguments()
by Jinjie Ruan 27 Nov '25

27 Nov '25

Remove unused SYSCALL_MAX_ARGS and avoid memcpy() for syscall_get_arguments() for arm64. Jinjie Ruan (2): syscall.h: Remove unused SYSCALL_MAX_ARGS arm64: Avoid memcpy() for syscall_get_arguments() arch/arm/include/asm/syscall.h | 2 -- arch/arm64/include/asm/syscall.h | 10 +++++----- arch/xtensa/include/asm/syscall.h | 1 - 3 files changed, 5 insertions(+), 8 deletions(-) -- 2.34.1

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[openeuler:OLK-6.6 3392/3392] htmldocs: Documentation/networking/ub/unic.rst:11: WARNING: undefined label: 'documentation/ub/ubase/ubase.rst' [ref.ref]
by kernel test robot 27 Nov '25

27 Nov '25

tree: https://gitee.com/openeuler/kernel.git OLK-6.6 head: 97b857c8129b11551aca289222b52d36c973e450 commit: 22011d4678c0cbd6a7e136a52e3f8da53d3bccc9 [3392/3392] net: unic: Add a doc for unic driver reproduce: (https://download.01.org/0day-ci/archive/20251127/202511271132.wMULonCl-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/202511271132.wMULonCl-lkp@intel.com/ All warnings (new ones prefixed by >>): Documentation/virt/coco/csv-guest.rst: WARNING: document isn't included in any toctree [toc.not_included] Documentation/virt/kvm/arm/pvsched.rst: WARNING: document isn't included in any toctree [toc.not_included] Documentation/virt/kvm/arm/pvsgi.rst: WARNING: document isn't included in any toctree [toc.not_included] Documentation/vm/memcg_memfs_info.rst: WARNING: document isn't included in any toctree [toc.not_included] Documentation/networking/ub/ubl.rst:63: WARNING: undefined label: 'documentation/networking/ub/unic.rst' [ref.ref] >> Documentation/networking/ub/unic.rst:11: WARNING: undefined label: 'documentation/ub/ubase/ubase.rst' [ref.ref] >> Documentation/networking/ub/unic.rst:11: WARNING: undefined label: 'documentation/networking/ub/ubl.rst' [ref.ref] vim +11 Documentation/networking/ub/unic.rst 8 9 Overview 10 ======== > 11 unic is a UB (UnifiedBus) networking driver based on ubase driver's auxiliary 12 device through auxiliary bus, supporting both ethernet and UB link layer. 13 See :ref:`Documentation/ub/ubase/ubase.rst` for more information about ubase 14 driver and :ref:`Documentation/networking/ub/ubl.rst` for more information about 15 UB link layer. 16 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki

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[openeuler:openEuler-1.0-LTS] BUILD REGRESSION d495515f012a96ae472e8ee75c66680fbdabaddb
by kernel test robot 27 Nov '25

27 Nov '25

tree/branch: https://gitee.com/openeuler/kernel.git openEuler-1.0-LTS branch HEAD: d495515f012a96ae472e8ee75c66680fbdabaddb !19298 pid: Add a judgment for ns null in pid_nr_ns Error/Warning (recently discovered and may have been fixed): https://lore.kernel.org/oe-kbuild-all/202511251827.iPD7MiMU-lkp@intel.com https://lore.kernel.org/oe-kbuild-all/202511271639.dU4NNkP5-lkp@intel.com crypto/sm4_generic.o: warning: objtool: missing symbol for section .text drivers/clk/sunxi-ng/.tmp_ccu-sun6i-a31.o: warning: objtool: missing symbol for section .text drivers/net/ethernet/huawei/bma/kbox_drv/kbox_dump.o: warning: objtool: missing symbol for section .text drivers/net/ethernet/huawei/bma/kbox_drv/kbox_panic.o: warning: objtool: missing symbol for section .text drivers/net/ethernet/huawei/bma/kbox_drv/kbox_ram_image.o: warning: objtool: missing symbol for section .text drivers/net/ethernet/huawei/bma/kbox_drv/kbox_ram_op.o: warning: objtool: missing symbol for section .text drivers/net/ethernet/netswift/ngbe/ngbe_sysfs.o: warning: objtool: missing symbol for section .text fs/btrfs/acl.o: warning: objtool: missing symbol for section .text Unverified Error/Warning (likely false positive, kindly check if interested): (.text+0x26a4): undefined reference to `_init' (.text+0x31): undefined reference to `_DYNAMIC' (.text+0x41): undefined reference to `_fini' /usr/include/bits/floatn.h:97:9: error: __float128 is not supported on this target crypto/ecc.c:1112:9: warning: 'priv' may be used uninitialized [-Wmaybe-uninitialized] include/linux/skbuff.h:1875:9: warning: array subscript 'struct sk_buff[0]' is partly outside array bounds of 'struct ieee80211_tx_data[1]' [-Warray-bounds=] include/linux/string.h:333:16: warning: '__builtin_memset' offset [48, 55] is out of the bounds [0, 48] [-Warray-bounds=] Error/Warning ids grouped by kconfigs: recent_errors |-- arm64-allnoconfig | |-- include-linux-list.h:warning:storing-the-address-of-local-variable-wait-in-((struct-list_head-)x)-.prev | |-- include-linux-list.h:warning:storing-the-address-of-local-variable-waiter-in-(struct-list_head-)((char-)sem-).prev | |-- include-linux-mempolicy.h:warning:__do_mbind-defined-but-not-used | |-- include-linux-printk.h:warning:this-statement-may-fall-through | |-- include-linux-signal.h:warning:this-statement-may-fall-through | |-- init-calibrate.c:warning:no-previous-prototype-for-calibration_delay_done | |-- mm-rmap.c:warning:no-previous-prototype-for-is_vma_temporary_stack | `-- mm-rmap.c:warning:variable-cstart-set-but-not-used |-- arm64-defconfig | |-- crypto-ecc.c:warning:priv-may-be-used-uninitialized | |-- include-asm-generic-io.h:warning:this-statement-may-fall-through | |-- include-linux-list.h:warning:storing-the-address-of-local-variable-waiter-in-(struct-list_head-)((char-)sem-).prev | |-- include-linux-printk.h:warning:this-statement-may-fall-through | |-- include-linux-signal.h:warning:this-statement-may-fall-through | |-- include-linux-skbuff.h:warning:array-subscript-struct-sk_buff-is-partly-outside-array-bounds-of-struct-ieee80211_tx_data | |-- init-calibrate.c:warning:no-previous-prototype-for-calibration_delay_done | `-- mm-memcontrol.c:warning:bad-line:otherwise. |-- arm64-randconfig-002-20251127 | |-- include-linux-mempolicy.h:warning:__do_mbind-defined-but-not-used | |-- include-linux-printk.h:warning:this-statement-may-fall-through | |-- include-linux-signal.h:warning:this-statement-may-fall-through | |-- init-calibrate.c:warning:no-previous-prototype-for-calibration_delay_done | `-- mm-memcontrol.c:warning:bad-line:otherwise. |-- arm64-randconfig-003-20251127 | |-- include-linux-printk.h:warning:this-statement-may-fall-through | |-- include-linux-signal.h:warning:this-statement-may-fall-through | |-- init-calibrate.c:warning:no-previous-prototype-for-calibration_delay_done | |-- mm-rmap.c:warning:no-previous-prototype-for-is_vma_temporary_stack | `-- mm-rmap.c:warning:variable-cstart-set-but-not-used |-- arm64-randconfig-004-20251127 | |-- crypto-ecc.c:warning:priv-may-be-used-uninitialized | |-- crypto-lrw.c:warning:conflicting-types-for-built-in-function-free-expected-void(void-) | |-- include-asm-generic-io.h:warning:this-statement-may-fall-through | |-- include-linux-list.h:warning:storing-the-address-of-local-variable-waiter-in-(struct-list_head-)((char-)sem-).prev | |-- include-linux-printk.h:warning:this-statement-may-fall-through | |-- include-linux-signal.h:warning:this-statement-may-fall-through | |-- include-linux-string.h:warning:__builtin_memset-offset-is-out-of-the-bounds | `-- init-calibrate.c:warning:no-previous-prototype-for-calibration_delay_done |-- x86_64-allnoconfig | |-- mm-rmap.c:warning:variable-cstart-set-but-not-used | `-- mm-vmscan.c:error:implicit-declaration-of-function-kernel_swap_enabled-Werror-Wimplicit-function-declaration |-- x86_64-allnoconfig-bpf | |-- (.text):undefined-reference-to-_DYNAMIC | |-- (.text):undefined-reference-to-_fini | |-- (.text):undefined-reference-to-_init | `-- usr-include-bits-floatn.h:error:__float128-is-not-supported-on-this-target |-- x86_64-buildonly-randconfig-002-20251127 | |-- drivers-clk-sunxi-ng-.tmp_ccu-sun4i-a10.o:warning:objtool:missing-symbol-for-section-.text | |-- drivers-clk-sunxi-ng-.tmp_ccu-sun6i-a31.o:warning:objtool:missing-symbol-for-section-.text | |-- drivers-clk-sunxi-ng-.tmp_ccu-sun8i-r.o:warning:objtool:missing-symbol-for-section-.text | |-- mm-hugetlb.c:warning:no-previous-prototype-for-function-free_huge_page_to_dhugetlb_pool | |-- mm-rmap.c:warning:variable-cstart-set-but-not-used | `-- mm-vmscan.c:error:implicit-declaration-of-function-kernel_swap_enabled-Werror-Wimplicit-function-declaration |-- x86_64-buildonly-randconfig-003-20251127 | |-- crypto-asymmetric_keys-mscode_parser.o:warning:objtool:missing-symbol-for-section-.text | |-- crypto-sm4_generic.o:warning:objtool:missing-symbol-for-section-.text | |-- mm-rmap.c:warning:variable-cstart-set-but-not-used | `-- mm-vmscan.c:error:implicit-declaration-of-function-kernel_swap_enabled-Werror-Wimplicit-function-declaration |-- x86_64-buildonly-randconfig-004-20251127 | |-- fs-ext4-mballoc.o:warning:objtool:ext4_mb_complex_scan_group:unreachable-instruction | |-- mm-memcontrol.c:warning:bad-line:otherwise. | `-- mm-rmap.c:warning:variable-cstart-set-but-not-used |-- x86_64-buildonly-randconfig-005-20251127 | |-- block-blk-lib.o:warning:objtool:missing-symbol-for-section-.text | |-- block-blk-mq-pci.o:warning:objtool:missing-symbol-for-section-.text | |-- crypto-sm4_generic.o:warning:objtool:missing-symbol-for-section-.text | |-- drivers-net-ethernet-huawei-bma-kbox_drv-kbox_dump.o:warning:objtool:missing-symbol-for-section-.text | |-- drivers-net-ethernet-huawei-bma-kbox_drv-kbox_panic.o:warning:objtool:missing-symbol-for-section-.text | |-- drivers-net-ethernet-huawei-bma-kbox_drv-kbox_ram_image.o:warning:objtool:missing-symbol-for-section-.text | |-- drivers-net-ethernet-huawei-bma-kbox_drv-kbox_ram_op.o:warning:objtool:missing-symbol-for-section-.text | |-- drivers-net-ethernet-mellanox-mlx5-core-en_dim.o:warning:objtool:missing-symbol-for-section-.text | |-- drivers-net-ethernet-netronome-nfp-nfp_app.o:warning:objtool:missing-symbol-for-section-.text | |-- drivers-net-ethernet-netswift-ngbe-ngbe_sysfs.o:warning:objtool:missing-symbol-for-section-.text | |-- kernel-sched-core.c:error:use-of-undeclared-identifier-root_task_group | |-- mm-hugetlb.c:warning:no-previous-prototype-for-function-free_huge_page_to_dhugetlb_pool | |-- mm-rmap.c:warning:variable-cstart-set-but-not-used | `-- mm-vmscan.c:error:implicit-declaration-of-function-kernel_swap_enabled-Werror-Wimplicit-function-declaration |-- x86_64-buildonly-randconfig-006-20251127 | |-- block-bfq-wf2q.o:warning:objtool:missing-symbol-for-section-.text | |-- crypto-sm4_generic.o:warning:objtool:missing-symbol-for-section-.text | |-- drivers-spi-spi-phytium-plat.c:warning:unused-variable-phytium_spi_acpi_match | |-- fs-btrfs-acl.o:warning:objtool:missing-symbol-for-section-.text | `-- mm-rmap.c:warning:variable-cstart-set-but-not-used |-- x86_64-randconfig-001-20251127 | |-- mm-memcontrol.c:warning:bad-line:otherwise. | |-- mm-rmap.c:warning:variable-cstart-set-but-not-used | `-- mm-vmscan.c:error:implicit-declaration-of-function-kernel_swap_enabled-Werror-Wimplicit-function-declaration |-- x86_64-randconfig-002-20251127 | `-- mm-rmap.c:warning:variable-cstart-set-but-not-used |-- x86_64-randconfig-006-20251127 | `-- mm-rmap.c:warning:variable-cstart-set-but-not-used |-- x86_64-randconfig-011-20251127 | |-- mm-hugetlb.c:warning:no-previous-prototype-for-function-free_huge_page_to_dhugetlb_pool | |-- mm-memcontrol.c:warning:bad-line:otherwise. | `-- mm-rmap.c:warning:variable-cstart-set-but-not-used |-- x86_64-randconfig-073-20251127 | |-- mm-rmap.c:warning:variable-cstart-set-but-not-used | `-- mm-vmscan.c:error:implicit-declaration-of-function-kernel_swap_enabled-Werror-Wimplicit-function-declaration |-- x86_64-randconfig-076-20251127 | |-- kernel-sched-core.c:error:use-of-undeclared-identifier-root_task_group | |-- mm-hugetlb.c:warning:no-previous-prototype-for-function-free_huge_page_to_dhugetlb_pool | `-- mm-rmap.c:warning:variable-cstart-set-but-not-used |-- x86_64-randconfig-104-20251127 | |-- kernel-sched-core.c:error:use-of-undeclared-identifier-root_task_group | `-- mm-rmap.c:warning:variable-cstart-set-but-not-used |-- x86_64-randconfig-121-20251127 | |-- include-linux-backing-dev.h:sparse:sparse:incompatible-types-in-comparison-expression-(different-address-spaces): | |-- mm-rmap.c:warning:variable-cstart-set-but-not-used | `-- mm-vmscan.c:error:implicit-declaration-of-function-kernel_swap_enabled-Werror-Wimplicit-function-declaration |-- x86_64-randconfig-123-20251127 | |-- include-linux-backing-dev.h:sparse:sparse:incompatible-types-in-comparison-expression-(different-address-spaces): | |-- mm-hugetlb.c:warning:no-previous-prototype-for-function-free_huge_page_to_dhugetlb_pool | `-- mm-rmap.c:warning:variable-cstart-set-but-not-used `-- x86_64-randconfig-161-20251127 `-- mm-rmap.c:warning:variable-cstart-set-but-not-used elapsed time: 1517m configs tested: 32 configs skipped: 104 tested configs: arm64 allnoconfig gcc-15.1.0 arm64 defconfig gcc-15.1.0 arm64 randconfig-001-20251127 gcc-6.5.0 arm64 randconfig-002-20251127 gcc-9.5.0 arm64 randconfig-003-20251127 gcc-9.5.0 arm64 randconfig-004-20251127 gcc-14.3.0 x86_64 allnoconfig clang-22 x86_64 buildonly-randconfig-001-20251127 gcc-14 x86_64 buildonly-randconfig-002-20251127 clang-22 x86_64 buildonly-randconfig-003-20251127 clang-22 x86_64 buildonly-randconfig-004-20251127 clang-22 x86_64 buildonly-randconfig-005-20251127 clang-22 x86_64 buildonly-randconfig-006-20251127 clang-22 x86_64 defconfig gcc-14 x86_64 randconfig-001-20251127 clang-22 x86_64 randconfig-002-20251127 clang-22 x86_64 randconfig-003-20251127 gcc-14 x86_64 randconfig-004-20251127 gcc-14 x86_64 randconfig-005-20251127 gcc-14 x86_64 randconfig-006-20251127 clang-22 x86_64 randconfig-011-20251127 clang-22 x86_64 randconfig-012-20251127 gcc-14 x86_64 randconfig-013-20251127 gcc-14 x86_64 randconfig-014-20251127 gcc-14 x86_64 randconfig-015-20251127 gcc-14 x86_64 randconfig-016-20251127 gcc-14 x86_64 randconfig-071-20251127 gcc-12 x86_64 randconfig-072-20251127 gcc-14 x86_64 randconfig-073-20251127 clang-22 x86_64 randconfig-074-20251127 gcc-14 x86_64 randconfig-075-20251127 gcc-14 x86_64 randconfig-076-20251127 clang-22 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki

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[openeuler:openEuler-1.0-LTS 1938/1938] drivers/net/ethernet/netswift/ngbe/ngbe_sysfs.o: warning: objtool: missing symbol for section .text
by kernel test robot 27 Nov '25

27 Nov '25

tree: https://gitee.com/openeuler/kernel.git openEuler-1.0-LTS head: d495515f012a96ae472e8ee75c66680fbdabaddb commit: 206f9c11a8c8b0197da5a26859d96d2ed65f5757 [1938/1938] net: ngbe: Add Netswift Giga NIC driver config: x86_64-buildonly-randconfig-005-20251127 (https://download.01.org/0day-ci/archive/20251127/202511271639.dU4NNkP5-lkp@…) compiler: clang version 22.0.0git (https://github.com/llvm/llvm-project 9e9fe08b16ea2c4d9867fb4974edf2a3776d6ece) reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20251127/202511271639.dU4NNkP5-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/202511271639.dU4NNkP5-lkp@intel.com/ All warnings (new ones prefixed by >>): In file included from drivers/net/ethernet/netswift/ngbe/ngbe_sysfs.c:19: drivers/net/ethernet/netswift/ngbe/ngbe.h:764:6: warning: variable 'cur_diff' set but not used [-Wunused-but-set-variable] 764 | u32 cur_diff = 0; | ^ 1 warning generated. >> drivers/net/ethernet/netswift/ngbe/ngbe_sysfs.o: warning: objtool: missing symbol for section .text -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki

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[PATCH OLK-6.6 v6 0/5] bugfix for xcall2.0
by Xinyu Zheng 27 Nov '25

27 Nov '25

Xinyu Zheng (5): xcall2.0: prefetch: fix value name typos in __do_sys_epoll_pwait xcall2.0: prefetch: keep prefetch module name same with file name xcall2.0: add xcall_subdir_create help to create subdir below /proc/xcall xcall2.0: Fix mem leak in proc_xcall_command xcall2.0: prefetch: introduce struct prefetch_mm_data arch/arm64/include/asm/xcall.h | 4 +- arch/arm64/kernel/xcall/core.c | 25 ++++- arch/arm64/kernel/xcall/proc.c | 61 ++---------- drivers/staging/xcall/prefetch.c | 156 +++++++++++++++++++++---------- include/linux/xcall.h | 1 + 5 files changed, 140 insertions(+), 107 deletions(-) -- 2.34.1

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[openeuler:OLK-6.6 3392/3392] htmldocs: Documentation/networking/ub/ubl.rst:63: WARNING: undefined label: 'documentation/networking/ub/unic.rst' [ref.ref]
by kernel test robot 27 Nov '25

27 Nov '25

tree: https://gitee.com/openeuler/kernel.git OLK-6.6 head: ef262ed1914f6af42786e3f0785c3ea16d21e335 commit: 5581b34fafcb3d4c4d1e98b6bf6a543ca47db91b [3392/3392] net: ubl: Add a doc for ubl module reproduce: (https://download.01.org/0day-ci/archive/20251127/202511270737.QHfXJWa1-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/202511270737.QHfXJWa1-lkp@intel.com/ All warnings (new ones prefixed by >>): Documentation/scsi/sssraid.rst: WARNING: document isn't included in any toctree [toc.not_included] Documentation/virt/coco/csv-guest.rst: WARNING: document isn't included in any toctree [toc.not_included] Documentation/virt/kvm/arm/pvsched.rst: WARNING: document isn't included in any toctree [toc.not_included] Documentation/virt/kvm/arm/pvsgi.rst: WARNING: document isn't included in any toctree [toc.not_included] Documentation/vm/memcg_memfs_info.rst: WARNING: document isn't included in any toctree [toc.not_included] >> Documentation/networking/ub/ubl.rst:63: WARNING: undefined label: 'documentation/networking/ub/unic.rst' [ref.ref] vim +63 Documentation/networking/ub/ubl.rst 59 60 .. kernel-doc:: drivers/net/ub/dev/ubl.c 61 :identifiers: alloc_ubldev_mqs ubl_create_header ubl_type_trans 62 > 63 An example of using the above API is the unic driver, see more detail using in 64 :ref:`Documentation/networking/ub/unic.rst` 65 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki

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[PATCH OLK-6.6] nfsd: don't ignore the return code of svc_proc_register()
by Li Lingfeng 27 Nov '25

27 Nov '25

From: Jeff Layton <jlayton(a)kernel.org> mainline inclusion from mainline-v6.15-rc1 commit 930b64ca0c511521f0abdd1d57ce52b2a6e3476b category: bugfix bugzilla: https://gitee.com/src-openeuler/kernel/issues/IC1QT8 CVE: CVE-2025-22026 Reference: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?… -------------------------------- Currently, nfsd_proc_stat_init() ignores the return value of svc_proc_register(). If the procfile creation fails, then the kernel will WARN when it tries to remove the entry later. Fix nfsd_proc_stat_init() to return the same type of pointer as svc_proc_register(), and fix up nfsd_net_init() to check that and fail the nfsd_net construction if it occurs. svc_proc_register() can fail if the dentry can't be allocated, or if an identical dentry already exists. The second case is pretty unlikely in the nfsd_net construction codepath, so if this happens, return -ENOMEM. Reported-by: syzbot+e34ad04f27991521104c(a)syzkaller.appspotmail.com Closes: https://lore.kernel.org/linux-nfs/67a47501.050a0220.19061f.05f9.GAE@google.… Cc: stable(a)vger.kernel.org # v6.9 Signed-off-by: Jeff Layton <jlayton(a)kernel.org> Signed-off-by: Chuck Lever <chuck.lever(a)oracle.com> Conflicts: fs/nfsd/nfsctl.c fs/nfsd/stats.c fs/nfsd/stats.h [Commit 73598a0cfb21 ("nfsd: don't allocate the versions array.") declare an array to the max size instead of using kmalloc to allocate an array; commit 7d12cce8784c ("fs: nfsd: use group allocation/free of per-cpu counters API") remove some functions;] Signed-off-by: Li Lingfeng <lilingfeng3(a)huawei.com> --- fs/nfsd/nfsctl.c | 9 ++++++++- fs/nfsd/stats.c | 4 ++-- fs/nfsd/stats.h | 2 +- 3 files changed, 11 insertions(+), 4 deletions(-) diff --git a/fs/nfsd/nfsctl.c b/fs/nfsd/nfsctl.c index 887035b74467..f9015635fb37 100644 --- a/fs/nfsd/nfsctl.c +++ b/fs/nfsd/nfsctl.c @@ -1527,17 +1527,24 @@ static __net_init int nfsd_net_init(struct net *net) retval = nfsd_stat_counters_init(nn); if (retval) goto out_repcache_error; + memset(&nn->nfsd_svcstats, 0, sizeof(nn->nfsd_svcstats)); nn->nfsd_svcstats.program = &nfsd_program; + if (!nfsd_proc_stat_init(net)) { + retval = -ENOMEM; + goto out_proc_error; + } + nn->nfsd_versions = NULL; nn->nfsd4_minorversions = NULL; nfsd4_init_leases_net(nn); get_random_bytes(&nn->siphash_key, sizeof(nn->siphash_key)); seqlock_init(&nn->writeverf_lock); - nfsd_proc_stat_init(net); return 0; +out_proc_error: + nfsd_stat_counters_destroy(nn); out_repcache_error: nfsd_idmap_shutdown(net); out_idmap_error: diff --git a/fs/nfsd/stats.c b/fs/nfsd/stats.c index 9f606fa08bd4..0a629a18831f 100644 --- a/fs/nfsd/stats.c +++ b/fs/nfsd/stats.c @@ -115,11 +115,11 @@ void nfsd_stat_counters_destroy(struct nfsd_net *nn) nfsd_percpu_counters_destroy(nn->counter, NFSD_STATS_COUNTERS_NUM); } -void nfsd_proc_stat_init(struct net *net) +struct proc_dir_entry *nfsd_proc_stat_init(struct net *net) { struct nfsd_net *nn = net_generic(net, nfsd_net_id); - svc_proc_register(net, &nn->nfsd_svcstats, &nfsd_proc_ops); + return svc_proc_register(net, &nn->nfsd_svcstats, &nfsd_proc_ops); } void nfsd_proc_stat_shutdown(struct net *net) diff --git a/fs/nfsd/stats.h b/fs/nfsd/stats.h index d2753e975dfd..b1f7d21cbcd1 100644 --- a/fs/nfsd/stats.h +++ b/fs/nfsd/stats.h @@ -15,7 +15,7 @@ void nfsd_percpu_counters_reset(struct percpu_counter *counters, int num); void nfsd_percpu_counters_destroy(struct percpu_counter *counters, int num); int nfsd_stat_counters_init(struct nfsd_net *nn); void nfsd_stat_counters_destroy(struct nfsd_net *nn); -void nfsd_proc_stat_init(struct net *net); +struct proc_dir_entry *nfsd_proc_stat_init(struct net *net); void nfsd_proc_stat_shutdown(struct net *net); static inline void nfsd_stats_rc_hits_inc(struct nfsd_net *nn) -- 2.46.1

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