- Kernel - mailweb.openeuler.org

[openeuler:OLK-6.6 3406/3406] htmldocs: ./include/ub/ubus/ubus.h:387: warning: Function parameter or member 'KABI_RESERVE(1' not described in 'ub_driver'
by kernel test robot 28 Nov '25

28 Nov '25

tree: https://gitee.com/openeuler/kernel.git OLK-6.6 head: c246f2d81b5390b10c50870d9ef40337e9a5cb86 commit: e40360b68c42fb79a086799873391e728c29c0de [3406/3406] ub:ubus: Add ubus and ubfi opensource document reproduce: (https://download.01.org/0day-ci/archive/20251128/202511280356.zz3MdyMr-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/202511280356.zz3MdyMr-lkp@intel.com/ All warnings (new ones prefixed by >>): ./include/ub/ubase/ubase_comm_dev.h:318: warning: Function parameter or member 'ctp_resp_vl_offset' not described in 'ubase_adev_qos' ./include/ub/ubase/ubase_comm_dev.h:318: warning: Function parameter or member 'ctp_req_vl' not described in 'ubase_adev_qos' ./include/ub/ubase/ubase_comm_dev.h:318: warning: Function parameter or member 'dscp_vl' not described in 'ubase_adev_qos' ./include/ub/ubase/ubase_comm_dev.h:318: warning: Function parameter or member 'ue_max_vl_id' not described in 'ubase_adev_qos' ./include/ub/ubase/ubase_comm_dev.h:318: warning: Function parameter or member 'ue_sl_vl' not described in 'ubase_adev_qos' >> ./include/ub/ubus/ubus.h:387: warning: Function parameter or member 'KABI_RESERVE(1' not described in 'ub_driver' ./drivers/usb/dwc3/core.h:1370: warning: Function parameter or member 'gfladj_refclk_lpm_sel' not described in 'dwc3' Error: Cannot open file ./include/linux/usb/gadget.h Error: Cannot open file ./include/linux/usb/gadget.h Error: Cannot open file ./include/linux/usb/composite.h Error: Cannot open file ./include/linux/usb/composite.h -- Error: Cannot open file ./include/linux/energy_model.h Error: Cannot open file ./include/linux/energy_model.h Error: Cannot open file ./include/linux/fprobe.h Error: Cannot open file ./include/linux/mutex.h Error: Cannot open file ./include/linux/mutex.h >> ./drivers/ub/ubfi/ubc.h:91: warning: Function parameter or member 'reserved' not described in 'ubrt_ubc_table' >> ./drivers/ub/ubfi/ubc.h:91: warning: Function parameter or member 'ubcs' not described in 'ubrt_ubc_table' >> ./drivers/ub/ubfi/ubc.h:60: warning: Function parameter or member 'reserved' not described in 'ubc_node' >> ./drivers/ub/ubfi/ubc.h:60: warning: Function parameter or member 'reserved2' not described in 'ubc_node' >> ./drivers/ub/ubfi/ubc.h:60: warning: Function parameter or member 'ubc_guid_low' not described in 'ubc_node' >> ./drivers/ub/ubfi/ubc.h:60: warning: Function parameter or member 'ubc_guid_high' not described in 'ubc_node' >> ./include/ub/ubus/ubus.h:387: warning: Function parameter or member 'KABI_RESERVE(1' not described in 'ub_driver' Error: Cannot open file ./include/linux/mod_devicetable.h Error: Cannot open file ./include/linux/fwctl.h ./include/uapi/linux/iommufd.h:615: warning: Enum value 'IOMMU_HW_CAP_PCI_PASID_EXEC' not described in enum 'iommufd_hw_capabilities' ./include/uapi/linux/iommufd.h:615: warning: Enum value 'IOMMU_HW_CAP_PCI_PASID_PRIV' not described in enum 'iommufd_hw_capabilities' ./include/uapi/linux/iommufd.h:615: warning: Excess enum value 'IOMMU_HW_CAP_PASID_EXEC' description in 'iommufd_hw_capabilities' -- WARNING: kernel-doc './scripts/kernel-doc -rst -enable-lineno -sphinx-version 8.2.3 -function tty_port_operations ./include/linux/tty_port.h' failed with return code 1 WARNING: kernel-doc './scripts/kernel-doc -rst -enable-lineno -sphinx-version 8.2.3 -function tty_kref_get ./include/linux/tty.h' failed with return code 1 WARNING: kernel-doc './scripts/kernel-doc -rst -enable-lineno -sphinx-version 8.2.3 -function TTY Struct Flags ./include/linux/tty.h' failed with return code 1 WARNING: kernel-doc './scripts/kernel-doc -rst -enable-lineno -sphinx-version 8.2.3 -function tty_struct ./include/linux/tty.h' failed with return code 1 Documentation/driver-api/ub/index.rst:3: ERROR: Undefined substitution referenced: "copy". [docutils] >> Documentation/driver-api/ub/ubus:6: ./include/ub/ubus/ubus.h:317: WARNING: Inline emphasis start-string without end-string. [docutils] WARNING: kernel-doc './scripts/kernel-doc -rst -enable-lineno -sphinx-version 8.2.3 -internal ./include/linux/usb/gadget.h' failed with return code 2 WARNING: kernel-doc './scripts/kernel-doc -rst -enable-lineno -sphinx-version 8.2.3 -internal ./include/linux/usb/composite.h' failed with return code 2 WARNING: kernel-doc './scripts/kernel-doc -rst -enable-lineno -sphinx-version 8.2.3 -function typec_altmode_driver -function typec_altmode_ops ./include/linux/usb/typec_altmode.h' failed with return code 1 WARNING: kernel-doc './scripts/kernel-doc -rst -enable-lineno -sphinx-version 8.2.3 -function typec_altmode_register_driver -function typec_altmode_unregister_driver ./include/linux/usb/typec_altmode.h' failed with return code 1 WARNING: kernel-doc './scripts/kernel-doc -rst -enable-lineno -sphinx-version 8.2.3 -internal ./include/linux/usb.h' failed with return code 2 -- Documentation/ub/ubase/ubase.rst:185: ERROR: Unexpected indentation. [docutils] Documentation/ub/ubase/ubase.rst:204: ERROR: Unexpected indentation. [docutils] Documentation/ub/ubase/ubase.rst:246: ERROR: Unexpected indentation. [docutils] Documentation/ub/ubus/ubus:112: ./include/ub/ubus/ubus.h:3: WARNING: Duplicate C declaration, also defined at driver-api/ub/ubus:3. Declaration is '.. c:struct:: ub_driver'. [duplicate_declaration.c] >> Documentation/ub/ubus/ubus:112: ./include/ub/ubus/ubus.h:317: WARNING: Inline emphasis start-string without end-string. [docutils] WARNING: kernel-doc './scripts/kernel-doc -rst -enable-lineno -sphinx-version 8.2.3 -function ub_device_id ./include/linux/mod_devicetable.h' failed with return code 1 WARNING: kernel-doc './scripts/kernel-doc -rst -enable-lineno -sphinx-version 8.2.3 ./include/linux/fwctl.h' failed with return code 1 Documentation/arch/x86/hygon-secure-virtualization.rst: WARNING: document isn't included in any toctree [toc.not_included] Documentation/misc-devices/zcopy.rst: WARNING: document isn't included in any toctree [toc.not_included] Documentation/mm/dynamic_hugetlb.rst: WARNING: document isn't included in any toctree [toc.not_included] vim +387 ./include/ub/ubus/ubus.h e42bc00975898c Junlong Zheng 2025-09-18 308 e42bc00975898c Junlong Zheng 2025-09-18 309 /** e42bc00975898c Junlong Zheng 2025-09-18 310 * struct ub_driver - UB driver structure e42bc00975898c Junlong Zheng 2025-09-18 311 * @node: List of driver structures. e42bc00975898c Junlong Zheng 2025-09-18 312 * @name: Driver name. e42bc00975898c Junlong Zheng 2025-09-18 313 * @id_table: Pointer to table of device IDs the driver is e42bc00975898c Junlong Zheng 2025-09-18 314 * interested in. Most drivers should export this e42bc00975898c Junlong Zheng 2025-09-18 315 * table using MODULE_DEVICE_TABLE(ub,...). e42bc00975898c Junlong Zheng 2025-09-18 316 * @probe: This probing function gets called (during execution e42bc00975898c Junlong Zheng 2025-09-18 317 * of ub_register_driver() for already existing e42bc00975898c Junlong Zheng 2025-09-18 318 * entities or later if a new entity gets inserted) for e42bc00975898c Junlong Zheng 2025-09-18 319 * all UB entities which match the ID table and are not e42bc00975898c Junlong Zheng 2025-09-18 320 * "owned" by the other drivers yet. This function gets e42bc00975898c Junlong Zheng 2025-09-18 321 * passed a "struct ub_entity *" for each entity whose e42bc00975898c Junlong Zheng 2025-09-18 322 * entry in the ID table matches the entity. The probe e42bc00975898c Junlong Zheng 2025-09-18 323 * function returns zero when the driver chooses to e42bc00975898c Junlong Zheng 2025-09-18 324 * take "ownership" of the entity or an error code e42bc00975898c Junlong Zheng 2025-09-18 325 * (negative number) otherwise. e42bc00975898c Junlong Zheng 2025-09-18 326 * The probe function always gets called from process e42bc00975898c Junlong Zheng 2025-09-18 327 * context, so it can sleep. e42bc00975898c Junlong Zheng 2025-09-18 328 * @remove: The remove() function gets called whenever an entity e42bc00975898c Junlong Zheng 2025-09-18 329 * being handled by this driver is removed (either during e42bc00975898c Junlong Zheng 2025-09-18 330 * deregistration of the driver or when it's manually e42bc00975898c Junlong Zheng 2025-09-18 331 * removed from a hot-pluggable slot). e42bc00975898c Junlong Zheng 2025-09-18 332 * The remove function always gets called from process e42bc00975898c Junlong Zheng 2025-09-18 333 * context, so it can sleep. e42bc00975898c Junlong Zheng 2025-09-18 334 * @shutdown: Hook into reboot_notifier_list (kernel/sys.c). e42bc00975898c Junlong Zheng 2025-09-18 335 * Intended to stop any idling operations. 9039065cf6d07a Junlong Zheng 2025-09-20 336 * @virt_configure: Optional driver callback to allow configuration of 59de5029039dc2 Yahui Liu 2025-11-14 337 * UEs. This function is called to enable or disable UEs. 9039065cf6d07a Junlong Zheng 2025-09-20 338 * @virt_notify: Optional driver callback to notify the driver about 59de5029039dc2 Yahui Liu 2025-11-14 339 * changes in UE status. This function is called 59de5029039dc2 Yahui Liu 2025-11-14 340 * when the status of a UE changes. ce21d74812eca9 Junlong Zheng 2025-09-20 341 * @activate: Activate a specific entity. This function is called to ce21d74812eca9 Junlong Zheng 2025-09-20 342 * activate an entity by its index. ce21d74812eca9 Junlong Zheng 2025-09-20 343 * @deactivate: Deactivate a specific entity. This function is called to ce21d74812eca9 Junlong Zheng 2025-09-20 344 * deactivate an entity by its index. 0f0c155e2bb76b Yahui Liu 2025-10-13 345 * @err_handler: Error handling callbacks. 41aa93731e2382 Junlong Zheng 2025-09-18 346 * @groups: Sysfs attribute groups. 41aa93731e2382 Junlong Zheng 2025-09-18 347 * @dev_groups: Attributes attached to the device that will be 41aa93731e2382 Junlong Zheng 2025-09-18 348 * created once it is bound to the driver. e42bc00975898c Junlong Zheng 2025-09-18 349 * @driver: Driver model structure. 41aa93731e2382 Junlong Zheng 2025-09-18 350 * @dynids: List of dynamically added device IDs. fae045218cb429 Junlong Zheng 2025-09-19 351 * @driver_managed_dma: Device driver doesn't use kernel DMA API for DMA. fae045218cb429 Junlong Zheng 2025-09-19 352 * For most device drivers, no need to care about this flag fae045218cb429 Junlong Zheng 2025-09-19 353 * as long as all DMAs are handled through the kernel DMA API. fae045218cb429 Junlong Zheng 2025-09-19 354 * For some special ones, for example VFIO drivers, they know fae045218cb429 Junlong Zheng 2025-09-19 355 * how to manage the DMA themselves and set this flag so that fae045218cb429 Junlong Zheng 2025-09-19 356 * the IOMMU layer will allow them to setup and manage their fae045218cb429 Junlong Zheng 2025-09-19 357 * own I/O address space. e42bc00975898c Junlong Zheng 2025-09-18 358 */ e42bc00975898c Junlong Zheng 2025-09-18 359 struct ub_driver { e42bc00975898c Junlong Zheng 2025-09-18 360 struct list_head node; e42bc00975898c Junlong Zheng 2025-09-18 361 const char *name; e42bc00975898c Junlong Zheng 2025-09-18 362 const struct ub_device_id *id_table; /* Must be non-NULL for probe to be called */ e42bc00975898c Junlong Zheng 2025-09-18 363 /* New entity inserted */ e42bc00975898c Junlong Zheng 2025-09-18 364 int (*probe)(struct ub_entity *uent, const struct ub_device_id *id); e42bc00975898c Junlong Zheng 2025-09-18 365 /* entity removed (NULL if not a hot-plug capable driver) */ e42bc00975898c Junlong Zheng 2025-09-18 366 void (*remove)(struct ub_entity *uent); e42bc00975898c Junlong Zheng 2025-09-18 367 void (*shutdown)(struct ub_entity *uent); 9039065cf6d07a Junlong Zheng 2025-09-20 368 int (*virt_configure)(struct ub_entity *uent, int entity_idx, bool is_en); 9039065cf6d07a Junlong Zheng 2025-09-20 369 int (*virt_notify)(struct ub_entity *uent, int entity_idx, bool is_en); ce21d74812eca9 Junlong Zheng 2025-09-20 370 int (*activate)(struct ub_entity *uent, u32 entity_idx); ce21d74812eca9 Junlong Zheng 2025-09-20 371 int (*deactivate)(struct ub_entity *uent, u32 entity_idx); 0f0c155e2bb76b Yahui Liu 2025-10-13 372 const struct ub_error_handlers *err_handler; 41aa93731e2382 Junlong Zheng 2025-09-18 373 const struct attribute_group **groups; 41aa93731e2382 Junlong Zheng 2025-09-18 374 const struct attribute_group **dev_groups; e42bc00975898c Junlong Zheng 2025-09-18 375 struct device_driver driver; 41aa93731e2382 Junlong Zheng 2025-09-18 376 struct ub_dynids dynids; fae045218cb429 Junlong Zheng 2025-09-19 377 bool driver_managed_dma; f1ef7b8acf16ea Junlong Zheng 2025-09-25 378 f1ef7b8acf16ea Junlong Zheng 2025-09-25 379 KABI_RESERVE(1) f1ef7b8acf16ea Junlong Zheng 2025-09-25 380 KABI_RESERVE(2) f1ef7b8acf16ea Junlong Zheng 2025-09-25 381 KABI_RESERVE(3) f1ef7b8acf16ea Junlong Zheng 2025-09-25 382 KABI_RESERVE(4) f1ef7b8acf16ea Junlong Zheng 2025-09-25 383 KABI_RESERVE(5) f1ef7b8acf16ea Junlong Zheng 2025-09-25 384 KABI_RESERVE(6) f1ef7b8acf16ea Junlong Zheng 2025-09-25 385 KABI_RESERVE(7) f1ef7b8acf16ea Junlong Zheng 2025-09-25 386 KABI_RESERVE(8) e42bc00975898c Junlong Zheng 2025-09-18 @387 }; e42bc00975898c Junlong Zheng 2025-09-18 388 :::::: The code at line 387 was first introduced by commit :::::: e42bc00975898c42b4b9f1dc88fbb3f0748de8a5 ub:ubus: Support for ub bus driver framework :::::: TO: Junlong Zheng <zhengjunlong(a)huawei.com> :::::: CC: Jianquan Lin <linjianquan2(a)huawei.com> -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki

1 0

[PATCH OLK-5.10] mm: proc: fix compile warning when CONFIG_NUMA=n
by Qi Xi 28 Nov '25

28 Nov '25

hulk inclusion category: bugfix bugzilla: https://gitee.com/openeuler/kernel/issues/ID980J -------------------------------- Fix compile warning: 'numa_maps_next' defined but not used. The function use is controlled by CONFIG_NUMA, so its definition should be compiled under the same config option. Fixes: 094a76ab06c3 ("mm: proc: use per_vma mmap_lock for vma traversal.") Signed-off-by: Qi Xi <xiqi2(a)huawei.com> --- fs/proc/task_mmu.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/fs/proc/task_mmu.c b/fs/proc/task_mmu.c index 4370eb895e76..2dbc954ec8e7 100644 --- a/fs/proc/task_mmu.c +++ b/fs/proc/task_mmu.c @@ -182,6 +182,7 @@ static void *m_next(struct seq_file *m, void *v, loff_t *ppos) return next; } +#ifdef CONFIG_NUMA static void *numa_maps_next(struct seq_file *m, void *v, loff_t *ppos) { struct proc_maps_private *priv = m->private; @@ -277,6 +278,7 @@ static void *numa_maps_next(struct seq_file *m, void *v, loff_t *ppos) *ppos = next ? next->vm_start : -1UL; return next; } +#endif /* CONFIG_NUMA */ static void m_stop(struct seq_file *m, void *v) { -- 2.33.0

2 1

[openeuler:OLK-6.6 3355/3355] block/blk-cgroup.c:2320:18: warning: no previous prototype for function 'bpf_blkcg_get_dev_iostat'
by kernel test robot 28 Nov '25

28 Nov '25

Hi GONG, FYI, the error/warning still remains. tree: https://gitee.com/openeuler/kernel.git OLK-6.6 head: c246f2d81b5390b10c50870d9ef40337e9a5cb86 commit: 969159a7bdeceb8bf814c6e0bf3b5360d9d9b167 [3355/3355] bpf-rvi: blk-cgroup: Add bpf_blkcg_get_dev_iostat() kfunc config: loongarch-allyesconfig (https://download.01.org/0day-ci/archive/20251128/202511280702.XVMyBDu0-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/20251128/202511280702.XVMyBDu0-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/202511280702.XVMyBDu0-lkp@intel.com/ All warnings (new ones prefixed by >>): >> block/blk-cgroup.c:2320:18: warning: no previous prototype for function 'bpf_blkcg_get_dev_iostat' [-Wmissing-prototypes] 2320 | __bpf_kfunc void bpf_blkcg_get_dev_iostat(struct blkcg *blkcg, int major, int minor, | ^ block/blk-cgroup.c:2320:13: note: declare 'static' if the function is not intended to be used outside of this translation unit 2320 | __bpf_kfunc void bpf_blkcg_get_dev_iostat(struct blkcg *blkcg, int major, int minor, | ^ | static 1 warning generated. vim +/bpf_blkcg_get_dev_iostat +2320 block/blk-cgroup.c 2306 2307 /* 2308 * Basically inmitating: 2309 * 2310 * - v1: 2311 * - tg_print_rwstat_recursive() in block/blk-throttle.c 2312 * - bfqg_print_rwstat_recursive() in block/bfq-cgroup.c 2313 * - v2: 2314 * - blkcg_print_stat() 2315 * 2316 * without the final printing (e.g. the __blkg_prfill_rwstat() part). 2317 * 2318 * Note that a subsystem can only exist in either cgroup v1 or v2 at the same time. 2319 */ > 2320 __bpf_kfunc void bpf_blkcg_get_dev_iostat(struct blkcg *blkcg, int major, int minor, 2321 struct blkg_rw_iostat *iostat, bool is_v2) 2322 { 2323 struct blkcg_gq *blkg; 2324 char dev_name[64]; 2325 2326 if (!blkcg || !iostat) 2327 return; 2328 2329 if (is_v2) { 2330 if (blkcg == &blkcg_root) 2331 blkcg_fill_root_iostats(); 2332 else 2333 cgroup_rstat_flush_atomic(blkcg->css.cgroup); 2334 } 2335 2336 snprintf(dev_name, sizeof(dev_name), "%d:%d", major, minor); 2337 rcu_read_lock(); 2338 hlist_for_each_entry_rcu(blkg, &blkcg->blkg_list, blkcg_node) { 2339 if (strcmp(dev_name, blkg_dev_name(blkg))) 2340 continue; 2341 spin_lock_irq(&blkg->q->queue_lock); 2342 if (is_v2) 2343 blkcg_get_one_stat_v2(blkg, iostat); 2344 else 2345 blkcg_get_one_stat_v1(blkg, iostat); 2346 spin_unlock_irq(&blkg->q->queue_lock); 2347 break; 2348 } 2349 rcu_read_unlock(); 2350 } 2351 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki

1 0

[openeuler:openEuler-1.0-LTS 1938/1938] block/blk-io-hierarchy/stats.o: warning: objtool: missing symbol for section .text
by kernel test robot 28 Nov '25

28 Nov '25

Hi Yu, FYI, the error/warning still remains. tree: https://gitee.com/openeuler/kernel.git openEuler-1.0-LTS head: d495515f012a96ae472e8ee75c66680fbdabaddb commit: 17e60c04404d52f58c2233ea5b72014f0d834e75 [1938/1938] block-io-hierarchy: core hierarchy stats implementation config: x86_64-buildonly-randconfig-005-20251127 (https://download.01.org/0day-ci/archive/20251128/202511280607.8AfuGdNA-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/20251128/202511280607.8AfuGdNA-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/202511280607.8AfuGdNA-lkp@intel.com/ All warnings (new ones prefixed by >>): >> block/blk-io-hierarchy/stats.o: warning: objtool: missing symbol for section .text -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki

1 0

[openeuler:openEuler-1.0-LTS 1938/1938] drivers/gpio/gpio-phytium-core.o: warning: objtool: missing symbol for section .text
by kernel test robot 28 Nov '25

28 Nov '25

tree: https://gitee.com/openeuler/kernel.git openEuler-1.0-LTS head: d495515f012a96ae472e8ee75c66680fbdabaddb commit: 00711bad7e372a30c4975ba43811ffa666aff0e1 [1938/1938] gpio: add phytium gpio driver config: x86_64-buildonly-randconfig-005-20251127 (https://download.01.org/0day-ci/archive/20251128/202511280322.yR8eUCYF-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/20251128/202511280322.yR8eUCYF-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/202511280322.yR8eUCYF-lkp@intel.com/ All warnings (new ones prefixed by >>): >> drivers/gpio/gpio-phytium-core.o: warning: objtool: missing symbol for section .text -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki

1 0

[openeuler:OLK-6.6 3392/3392] htmldocs: ./include/ub/ubase/ubase_comm_ctrlq.h:90: warning: Function parameter or member 'is_async' not described in 'ubase_ctrlq_msg'
by kernel test robot 27 Nov '25

27 Nov '25

tree: https://gitee.com/openeuler/kernel.git OLK-6.6 head: 344a2673d58146148c1454c968f3f3dadd3b8cd5 commit: c7286df8de9606db5221782319ac1a0e103f9524 [3392/3392] ub: ubase: Introduces the functions and data structures exposed by the ubase driver reproduce: (https://download.01.org/0day-ci/archive/20251127/202511271621.CZZ36bxq-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/202511271621.CZZ36bxq-lkp@intel.com/ All warnings (new ones prefixed by >>): Error: Cannot open file ./include/linux/tty_port.h Error: Cannot open file ./include/linux/tty_port.h Error: Cannot open file ./include/linux/tty.h Error: Cannot open file ./include/linux/tty.h Error: Cannot open file ./include/linux/tty.h >> ./include/ub/ubase/ubase_comm_ctrlq.h:90: warning: Function parameter or member 'is_async' not described in 'ubase_ctrlq_msg' >> ./include/ub/ubase/ubase_comm_dev.h:318: warning: Function parameter or member 'sl_num' not described in 'ubase_adev_qos' >> ./include/ub/ubase/ubase_comm_dev.h:318: warning: Function parameter or member 'sl' not described in 'ubase_adev_qos' >> ./include/ub/ubase/ubase_comm_dev.h:318: warning: Function parameter or member 'tp_sl_num' not described in 'ubase_adev_qos' >> ./include/ub/ubase/ubase_comm_dev.h:318: warning: Function parameter or member 'tp_sl' not described in 'ubase_adev_qos' >> ./include/ub/ubase/ubase_comm_dev.h:318: warning: Function parameter or member 'ctp_sl_num' not described in 'ubase_adev_qos' >> ./include/ub/ubase/ubase_comm_dev.h:318: warning: Function parameter or member 'ctp_sl' not described in 'ubase_adev_qos' >> ./include/ub/ubase/ubase_comm_dev.h:318: warning: Function parameter or member 'vl_num' not described in 'ubase_adev_qos' >> ./include/ub/ubase/ubase_comm_dev.h:318: warning: Function parameter or member 'vl' not described in 'ubase_adev_qos' >> ./include/ub/ubase/ubase_comm_dev.h:318: warning: Function parameter or member 'tp_vl_num' not described in 'ubase_adev_qos' >> ./include/ub/ubase/ubase_comm_dev.h:318: warning: Function parameter or member 'tp_resp_vl_offset' not described in 'ubase_adev_qos' >> ./include/ub/ubase/ubase_comm_dev.h:318: warning: Function parameter or member 'tp_req_vl' not described in 'ubase_adev_qos' >> ./include/ub/ubase/ubase_comm_dev.h:318: warning: Function parameter or member 'ctp_vl_num' not described in 'ubase_adev_qos' >> ./include/ub/ubase/ubase_comm_dev.h:318: warning: Function parameter or member 'ctp_resp_vl_offset' not described in 'ubase_adev_qos' >> ./include/ub/ubase/ubase_comm_dev.h:318: warning: Function parameter or member 'ctp_req_vl' not described in 'ubase_adev_qos' >> ./include/ub/ubase/ubase_comm_dev.h:318: warning: Function parameter or member 'dscp_vl' not described in 'ubase_adev_qos' >> ./include/ub/ubase/ubase_comm_dev.h:318: warning: Function parameter or member 'ue_max_vl_id' not described in 'ubase_adev_qos' >> ./include/ub/ubase/ubase_comm_dev.h:318: warning: Function parameter or member 'ue_sl_vl' not described in 'ubase_adev_qos' ./drivers/usb/dwc3/core.h:1370: warning: Function parameter or member 'gfladj_refclk_lpm_sel' not described in 'dwc3' Error: Cannot open file ./include/linux/usb/gadget.h Error: Cannot open file ./include/linux/usb/gadget.h Error: Cannot open file ./include/linux/usb/composite.h Error: Cannot open file ./include/linux/usb/composite.h vim +90 ./include/ub/ubase/ubase_comm_ctrlq.h 727362c0978ca7 Xiongchuan Zhou 2025-09-20 60 c7286df8de9606 Fengyan Mu 2025-11-21 61 /** c7286df8de9606 Fengyan Mu 2025-11-21 62 * struct ubase_ctrlq_msg - ubase ctrlq msg structure c7286df8de9606 Fengyan Mu 2025-11-21 63 * @service_ver: ctrlq service version c7286df8de9606 Fengyan Mu 2025-11-21 64 * @service_type: ctrlq service type c7286df8de9606 Fengyan Mu 2025-11-21 65 * @opcode: ctrlq opcode c7286df8de9606 Fengyan Mu 2025-11-21 66 * @need_resp: whether the message need a response c7286df8de9606 Fengyan Mu 2025-11-21 67 * @is_resp: whether the message is a response c7286df8de9606 Fengyan Mu 2025-11-21 68 * @resv: reserved bits c7286df8de9606 Fengyan Mu 2025-11-21 69 * @resp_ret: the return value of response message c7286df8de9606 Fengyan Mu 2025-11-21 70 * @resp_seq: response message sequence c7286df8de9606 Fengyan Mu 2025-11-21 71 * @in_size: input data buffer size c7286df8de9606 Fengyan Mu 2025-11-21 72 * @out_size: output data buffer size c7286df8de9606 Fengyan Mu 2025-11-21 73 * @in: input data buffer c7286df8de9606 Fengyan Mu 2025-11-21 74 * @out: output data buffer c7286df8de9606 Fengyan Mu 2025-11-21 75 */ d7ce08663cc5bc Xiongchuan Zhou 2025-09-17 76 struct ubase_ctrlq_msg { d7ce08663cc5bc Xiongchuan Zhou 2025-09-17 77 enum ubase_ctrlq_ser_ver service_ver; d7ce08663cc5bc Xiongchuan Zhou 2025-09-17 78 enum ubase_ctrlq_ser_type service_type; d7ce08663cc5bc Xiongchuan Zhou 2025-09-17 79 u8 opcode; d7ce08663cc5bc Xiongchuan Zhou 2025-09-17 80 u8 need_resp : 1; d7ce08663cc5bc Xiongchuan Zhou 2025-09-17 81 u8 is_resp : 1; 0ee149f4767688 Fengyan Mu 2025-11-12 82 u8 is_async : 1; 0ee149f4767688 Fengyan Mu 2025-11-12 83 u8 resv : 5; d7ce08663cc5bc Xiongchuan Zhou 2025-09-17 84 u8 resp_ret; /* must set when the is_resp field is true. */ d7ce08663cc5bc Xiongchuan Zhou 2025-09-17 85 u16 resp_seq; /* must set when the is_resp field is true. */ d7ce08663cc5bc Xiongchuan Zhou 2025-09-17 86 u16 in_size; d7ce08663cc5bc Xiongchuan Zhou 2025-09-17 87 u16 out_size; d7ce08663cc5bc Xiongchuan Zhou 2025-09-17 88 void *in; d7ce08663cc5bc Xiongchuan Zhou 2025-09-17 89 void *out; d7ce08663cc5bc Xiongchuan Zhou 2025-09-17 @90 }; d7ce08663cc5bc Xiongchuan Zhou 2025-09-17 91 :::::: The code at line 90 was first introduced by commit :::::: d7ce08663cc5bc33993af7b046eb09e98640c404 ub: ubase: Supports for ctrl queue management. :::::: TO: Xiongchuan Zhou <zhouxiongchuan(a)h-partners.com> :::::: CC: Fengyan Mu <mufengyan(a)huawei.com> -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki

1 0

[PATCH OLK-6.6 0/1] zcopy: Fix context switch within RCU read-side
by Liu Mingrui 27 Nov '25

27 Nov '25

zcopy: Fix context switch within RCU read-side Liu Mingrui (1): zcopy: Fix context switch within RCU read-side error drivers/misc/zcopy/zcopy.c | 5 +++++ 1 file changed, 5 insertions(+) -- 2.25.1

2 2

[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

2 1

[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

2 1

[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

2 1