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[PATCH OLK-6.6] bpf: account for current allocated stack depth in widen_imprecise_scalars()
by Pu Lehui 23 Dec '25

23 Dec '25

From: Eduard Zingerman <eddyz87(a)gmail.com> stable inclusion from stable-v6.6.117 commit 64b12dca2b0abcb5fc0542887d18b926ea5cf711 category: bugfix bugzilla: https://gitee.com/src-openeuler/kernel/issues/IDDEYR CVE: CVE-2025-68208 Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id… -------------------------------- [ Upstream commit b0c8e6d3d866b6a7f73877f71968dbffd27b7785 ] The usage pattern for widen_imprecise_scalars() looks as follows: prev_st = find_prev_entry(env, ...); queued_st = push_stack(...); widen_imprecise_scalars(env, prev_st, queued_st); Where prev_st is an ancestor of the queued_st in the explored states tree. This ancestor is not guaranteed to have same allocated stack depth as queued_st. E.g. in the following case: def main(): for i in 1..2: foo(i) // same callsite, differnt param def foo(i): if i == 1: use 128 bytes of stack iterator based loop Here, for a second 'foo' call prev_st->allocated_stack is 128, while queued_st->allocated_stack is much smaller. widen_imprecise_scalars() needs to take this into account and avoid accessing bpf_verifier_state->frame[*]->stack out of bounds. Fixes: 2793a8b015f7 ("bpf: exact states comparison for iterator convergence checks") Reported-by: Emil Tsalapatis <emil(a)etsalapatis.com> Signed-off-by: Eduard Zingerman <eddyz87(a)gmail.com> Link: https://lore.kernel.org/r/20251114025730.772723-1-eddyz87@gmail.com Signed-off-by: Alexei Starovoitov <ast(a)kernel.org> Signed-off-by: Sasha Levin <sashal(a)kernel.org> Signed-off-by: Pu Lehui <pulehui(a)huawei.com> --- kernel/bpf/verifier.c | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) diff --git a/kernel/bpf/verifier.c b/kernel/bpf/verifier.c index 26086c893dfb..ce1f5a9bdd9a 100644 --- a/kernel/bpf/verifier.c +++ b/kernel/bpf/verifier.c @@ -7918,7 +7918,7 @@ static int widen_imprecise_scalars(struct bpf_verifier_env *env, struct bpf_verifier_state *cur) { struct bpf_func_state *fold, *fcur; - int i, fr; + int i, fr, num_slots; reset_idmap_scratch(env); for (fr = old->curframe; fr >= 0; fr--) { @@ -7931,7 +7931,9 @@ static int widen_imprecise_scalars(struct bpf_verifier_env *env, &fcur->regs[i], &env->idmap_scratch); - for (i = 0; i < fold->allocated_stack / BPF_REG_SIZE; i++) { + num_slots = min(fold->allocated_stack / BPF_REG_SIZE, + fcur->allocated_stack / BPF_REG_SIZE); + for (i = 0; i < num_slots; i++) { if (!is_spilled_reg(&fold->stack[i]) || !is_spilled_reg(&fcur->stack[i])) continue; -- 2.34.1

2 1

[openeuler:OLK-6.6 2/2] mm/oom_kill.c:316: warning: Function parameter or member 'task' not described in 'oom_next_task'
by kernel test robot 23 Dec '25

23 Dec '25

Hi Jing, FYI, the error/warning still remains. tree: https://gitee.com/openeuler/kernel.git OLK-6.6 head: c098fa18c07cc52100a52db8fd0c2900461888c9 commit: be8d95530886b0aaa5a59b5c43a285667c9eebc6 [2/2] memcg: support priority for oom config: arm64-randconfig-004-20251223 (https://download.01.org/0day-ci/archive/20251223/202512231015.AeGVhu0Q-lkp@…) compiler: aarch64-linux-gcc (GCC) 9.5.0 reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20251223/202512231015.AeGVhu0Q-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/202512231015.AeGVhu0Q-lkp@intel.com/ All warnings (new ones prefixed by >>): >> mm/oom_kill.c:316: warning: Function parameter or member 'task' not described in 'oom_next_task' >> mm/oom_kill.c:316: warning: Function parameter or member 'oc' not described in 'oom_next_task' >> mm/oom_kill.c:316: warning: Function parameter or member 'points' not described in 'oom_next_task' >> mm/oom_kill.c:316: warning: expecting prototype for We choose the task in low(). Prototype was for oom_next_task() instead vim +316 mm/oom_kill.c 308 309 #ifdef CONFIG_MEMCG_OOM_PRIORITY 310 /** 311 * We choose the task in low-priority memcg firstly. For the same state, we 312 * choose the task with the highest number of 'points'. 313 */ 314 static bool oom_next_task(struct task_struct *task, struct oom_control *oc, 315 long points) > 316 { 317 struct mem_cgroup *cur_memcg; 318 struct mem_cgroup *oc_memcg; 319 int cur_memcg_prio, oc_memcg_prio; 320 321 if (points == LONG_MIN) 322 return true; 323 324 if (!oc->chosen) 325 return false; 326 327 rcu_read_lock(); 328 oc_memcg = mem_cgroup_from_task(oc->chosen); 329 cur_memcg = mem_cgroup_from_task(task); 330 oc_memcg_prio = READ_ONCE(oc_memcg->oom_prio); 331 cur_memcg_prio = READ_ONCE(cur_memcg->oom_prio); 332 rcu_read_unlock(); 333 334 if (cur_memcg_prio == oc_memcg_prio) 335 return points < oc->chosen_points; 336 337 /* if oc is low-priority, so skip the task */ 338 if (oc_memcg_prio == MEMCG_LOW_OOM_PRIORITY) 339 return true; 340 341 return false; 342 } 343 #else 344 static inline bool oom_next_task(struct task_struct *task, 345 struct oom_control *oc, long points) 346 { 347 return points == LONG_MIN || points < oc->chosen_points; 348 } 349 #endif 350 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki

1 0

[openeuler:OLK-6.6 3541/3541] kernel/sched/fair.c:9005:51: sparse: sparse: incorrect type in argument 1 (different address spaces)
by kernel test robot 23 Dec '25

23 Dec '25

tree: https://gitee.com/openeuler/kernel.git OLK-6.6 head: c098fa18c07cc52100a52db8fd0c2900461888c9 commit: c52c17a85f1fa9cde2bcb15359096634cfd9eb7c [3541/3541] sched: Add tracepoint for qos smt expeller config: arm64-randconfig-r113-20251213 (https://download.01.org/0day-ci/archive/20251223/202512231020.T3d5Cq3i-lkp@…) compiler: aarch64-linux-gcc (GCC) 12.5.0 reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20251223/202512231020.T3d5Cq3i-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/202512231020.T3d5Cq3i-lkp@intel.com/ sparse warnings: (new ones prefixed by >>) kernel/sched/fair.c:151:14: sparse: sparse: symbol 'sysctl_overload_detect_period' was not declared. Should it be static? kernel/sched/fair.c:152:14: sparse: sparse: symbol 'sysctl_offline_wait_interval' was not declared. Should it be static? kernel/sched/fair.c:163:14: sparse: sparse: symbol 'sysctl_sched_prio_load_balance_enabled' was not declared. Should it be static? kernel/sched/fair.c:191:5: sparse: sparse: symbol 'sysctl_sched_util_low_pct' was not declared. Should it be static? kernel/sched/fair.c:1283:34: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected struct sched_entity const *se @@ got struct sched_entity [noderef] __rcu * @@ kernel/sched/fair.c:1283:34: sparse: expected struct sched_entity const *se kernel/sched/fair.c:1283:34: sparse: got struct sched_entity [noderef] __rcu * kernel/sched/fair.c:3066:13: sparse: sparse: incorrect type in assignment (different address spaces) @@ expected struct task_struct *tsk @@ got struct task_struct [noderef] __rcu * @@ kernel/sched/fair.c:3066:13: sparse: expected struct task_struct *tsk kernel/sched/fair.c:3066:13: sparse: got struct task_struct [noderef] __rcu * kernel/sched/fair.c:13203:9: sparse: sparse: incorrect type in assignment (different address spaces) @@ expected struct sched_domain *[assigned] sd @@ got struct sched_domain [noderef] __rcu *parent @@ kernel/sched/fair.c:13203:9: sparse: expected struct sched_domain *[assigned] sd kernel/sched/fair.c:13203:9: sparse: got struct sched_domain [noderef] __rcu *parent kernel/sched/fair.c:5161:25: sparse: sparse: incompatible types in comparison expression (different address spaces): kernel/sched/fair.c:5161:25: sparse: struct sparsemask [noderef] __rcu * kernel/sched/fair.c:5161:25: sparse: struct sparsemask * kernel/sched/fair.c:5178:25: sparse: sparse: incompatible types in comparison expression (different address spaces): kernel/sched/fair.c:5178:25: sparse: struct sparsemask [noderef] __rcu * kernel/sched/fair.c:5178:25: sparse: struct sparsemask * kernel/sched/fair.c:13559:25: sparse: sparse: incompatible types in comparison expression (different address spaces): kernel/sched/fair.c:13559:25: sparse: struct sparsemask [noderef] __rcu * kernel/sched/fair.c:13559:25: sparse: struct sparsemask * kernel/sched/fair.c:6012:22: sparse: sparse: incompatible types in comparison expression (different address spaces): kernel/sched/fair.c:6012:22: sparse: struct task_struct [noderef] __rcu * kernel/sched/fair.c:6012:22: sparse: struct task_struct * kernel/sched/fair.c:8121:20: sparse: sparse: incorrect type in assignment (different address spaces) @@ expected struct sched_domain *[assigned] sd @@ got struct sched_domain [noderef] __rcu *parent @@ kernel/sched/fair.c:8121:20: sparse: expected struct sched_domain *[assigned] sd kernel/sched/fair.c:8121:20: sparse: got struct sched_domain [noderef] __rcu *parent kernel/sched/fair.c:8436:9: sparse: sparse: incorrect type in assignment (different address spaces) @@ expected struct sched_domain *[assigned] tmp @@ got struct sched_domain [noderef] __rcu *parent @@ kernel/sched/fair.c:8436:9: sparse: expected struct sched_domain *[assigned] tmp kernel/sched/fair.c:8436:9: sparse: got struct sched_domain [noderef] __rcu *parent kernel/sched/fair.c:8548:38: sparse: sparse: incorrect type in initializer (different address spaces) @@ expected struct task_struct *curr @@ got struct task_struct [noderef] __rcu *curr @@ kernel/sched/fair.c:8548:38: sparse: expected struct task_struct *curr kernel/sched/fair.c:8548:38: sparse: got struct task_struct [noderef] __rcu *curr kernel/sched/fair.c:8774:22: sparse: sparse: incompatible types in comparison expression (different address spaces): kernel/sched/fair.c:8774:22: sparse: struct task_struct [noderef] __rcu * kernel/sched/fair.c:8774:22: sparse: struct task_struct * >> kernel/sched/fair.c:9005:51: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected struct task_struct *sibling_p @@ got struct task_struct [noderef] __rcu *curr @@ kernel/sched/fair.c:9005:51: sparse: expected struct task_struct *sibling_p kernel/sched/fair.c:9005:51: sparse: got struct task_struct [noderef] __rcu *curr kernel/sched/fair.c:9010:30: sparse: sparse: incompatible types in comparison expression (different address spaces): kernel/sched/fair.c:9010:30: sparse: struct task_struct [noderef] __rcu * kernel/sched/fair.c:9010:30: sparse: struct task_struct * kernel/sched/fair.c:9084:48: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected struct task_struct *p @@ got struct task_struct [noderef] __rcu *curr @@ kernel/sched/fair.c:9332:38: sparse: sparse: incorrect type in initializer (different address spaces) @@ expected struct task_struct *curr @@ got struct task_struct [noderef] __rcu *curr @@ kernel/sched/fair.c:10403:40: sparse: sparse: incorrect type in initializer (different address spaces) @@ expected struct sched_domain *child @@ got struct sched_domain [noderef] __rcu *child @@ kernel/sched/fair.c:11040:22: sparse: sparse: incompatible types in comparison expression (different address spaces): kernel/sched/fair.c:11040:22: sparse: struct task_struct [noderef] __rcu * kernel/sched/fair.c:11040:22: sparse: struct task_struct * kernel/sched/fair.c:12481:9: sparse: sparse: incorrect type in assignment (different address spaces) @@ expected struct sched_domain *[assigned] sd @@ got struct sched_domain [noderef] __rcu *parent @@ kernel/sched/fair.c:12481:9: sparse: expected struct sched_domain *[assigned] sd kernel/sched/fair.c:12481:9: sparse: got struct sched_domain [noderef] __rcu *parent kernel/sched/fair.c:12138:44: sparse: sparse: incorrect type in initializer (different address spaces) @@ expected struct sched_domain *sd_parent @@ got struct sched_domain [noderef] __rcu *parent @@ kernel/sched/fair.c:12138:44: sparse: expected struct sched_domain *sd_parent kernel/sched/fair.c:12138:44: sparse: got struct sched_domain [noderef] __rcu *parent kernel/sched/fair.c:12577:9: sparse: sparse: incorrect type in assignment (different address spaces) @@ expected struct sched_domain *[assigned] sd @@ got struct sched_domain [noderef] __rcu *parent @@ kernel/sched/fair.c:12577:9: sparse: expected struct sched_domain *[assigned] sd kernel/sched/fair.c:12577:9: sparse: got struct sched_domain [noderef] __rcu *parent kernel/sched/fair.c:3012:9: sparse: sparse: context imbalance in 'task_numa_placement' - different lock contexts for basic block kernel/sched/fair.c:7307:28: sparse: sparse: incorrect type in assignment (different address spaces) @@ expected struct sched_domain *sd @@ got struct sched_domain [noderef] __rcu *child @@ kernel/sched/fair.c:7307:28: sparse: expected struct sched_domain *sd kernel/sched/fair.c:7307:28: sparse: got struct sched_domain [noderef] __rcu *child kernel/sched/fair.c:7313:28: sparse: sparse: incorrect type in assignment (different address spaces) @@ expected struct sched_domain *sd @@ got struct sched_domain [noderef] __rcu *child @@ kernel/sched/fair.c:7313:28: sparse: expected struct sched_domain *sd kernel/sched/fair.c:7313:28: sparse: got struct sched_domain [noderef] __rcu *child kernel/sched/fair.c:7320:28: sparse: sparse: incorrect type in assignment (different address spaces) @@ expected struct sched_domain *sd @@ got struct sched_domain [noderef] __rcu *child @@ kernel/sched/fair.c:7320:28: sparse: expected struct sched_domain *sd kernel/sched/fair.c:7320:28: sparse: got struct sched_domain [noderef] __rcu *child kernel/sched/fair.c:7328:17: sparse: sparse: incorrect type in assignment (different address spaces) @@ expected struct sched_domain *[assigned] tmp @@ got struct sched_domain [noderef] __rcu *parent @@ kernel/sched/fair.c:7328:17: sparse: expected struct sched_domain *[assigned] tmp kernel/sched/fair.c:7328:17: sparse: got struct sched_domain [noderef] __rcu *parent kernel/sched/fair.c: note: in included file: kernel/sched/sched.h:2338:9: sparse: sparse: incompatible types in comparison expression (different address spaces): kernel/sched/sched.h:2338:9: sparse: struct task_struct [noderef] __rcu * kernel/sched/sched.h:2338:9: sparse: struct task_struct * kernel/sched/sched.h:2338:9: sparse: sparse: incompatible types in comparison expression (different address spaces): kernel/sched/sched.h:2338:9: sparse: struct task_struct [noderef] __rcu * kernel/sched/sched.h:2338:9: sparse: struct task_struct * kernel/sched/sched.h:2174:25: sparse: sparse: incompatible types in comparison expression (different address spaces): kernel/sched/sched.h:2174:25: sparse: struct task_struct [noderef] __rcu * kernel/sched/sched.h:2174:25: sparse: struct task_struct * kernel/sched/sched.h:2174:25: sparse: sparse: incompatible types in comparison expression (different address spaces): kernel/sched/sched.h:2174:25: sparse: struct task_struct [noderef] __rcu * kernel/sched/sched.h:2174:25: sparse: struct task_struct * vim +9005 kernel/sched/fair.c 8984 8985 static bool _qos_smt_check_need_resched(int this_cpu, struct rq *rq) 8986 { 8987 int cpu; 8988 8989 if (!sched_smt_active()) 8990 return false; 8991 8992 for_each_cpu(cpu, cpu_smt_mask(this_cpu)) { 8993 if (cpu == this_cpu) 8994 continue; 8995 8996 /* 8997 * There are two cases rely on the set need_resched to drive away 8998 * offline task： 8999 * a) The qos_smt_status of siblings cpu is online, the task of curr cpu is offline; 9000 * b) The qos_smt_status of siblings cpu is offline, the task of curr cpu is idle, 9001 * and current cpu only has SCHED_IDLE tasks enqueued. 9002 */ 9003 if (per_cpu(qos_smt_status, cpu) == QOS_LEVEL_ONLINE && 9004 task_group(current)->qos_level < QOS_LEVEL_ONLINE) { > 9005 trace_sched_qos_smt_expel(cpu_curr(cpu), per_cpu(qos_smt_status, cpu)); 9006 return true; 9007 } 9008 9009 if (per_cpu(qos_smt_status, cpu) == QOS_LEVEL_OFFLINE && 9010 rq->curr == rq->idle && sched_idle_cpu(this_cpu)) { 9011 trace_sched_qos_smt_expel(cpu_curr(cpu), per_cpu(qos_smt_status, cpu)); 9012 return true; 9013 } 9014 } 9015 9016 return false; 9017 } 9018 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki

1 0

[openeuler:OLK-6.6 2/2] mm/vmalloc.c:4443: warning: Function parameter or member 'pgoff' not described in 'remap_vmalloc_hugepage_range_partial'
by kernel test robot 23 Dec '25

23 Dec '25

Hi Wang, FYI, the error/warning still remains. tree: https://gitee.com/openeuler/kernel.git OLK-6.6 head: c098fa18c07cc52100a52db8fd0c2900461888c9 commit: 9b1283f2bec2134030e1e099b900579f1f03840e [2/2] mm/vmalloc: Extend vmalloc usage about hugepage config: arm64-randconfig-004-20251223 (https://download.01.org/0day-ci/archive/20251223/202512230928.obIRItp9-lkp@…) compiler: aarch64-linux-gcc (GCC) 9.5.0 reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20251223/202512230928.obIRItp9-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/202512230928.obIRItp9-lkp@intel.com/ All warnings (new ones prefixed by >>): >> mm/vmalloc.c:4443: warning: Function parameter or member 'pgoff' not described in 'remap_vmalloc_hugepage_range_partial' vim +4443 mm/vmalloc.c 4423 4424 /** 4425 * remap_vmalloc_hugepage_range_partial - map vmalloc hugepages 4426 * to userspace 4427 * @vma: vma to cover 4428 * @uaddr: target user address to start at 4429 * @kaddr: virtual address of vmalloc hugepage kernel memory 4430 * @size: size of map area 4431 * 4432 * Returns: 0 for success, -Exxx on failure 4433 * 4434 * This function checks that @kaddr is a valid vmalloc'ed area, 4435 * and that it is big enough to cover the range starting at 4436 * @uaddr in @vma. Will return failure if that criteria isn't 4437 * met. 4438 * 4439 * Similar to remap_pfn_range() (see mm/memory.c) 4440 */ 4441 int remap_vmalloc_hugepage_range_partial(struct vm_area_struct *vma, unsigned long uaddr, 4442 void *kaddr, unsigned long pgoff, unsigned long size) > 4443 { 4444 struct vm_struct *area; 4445 unsigned long off; 4446 unsigned long end_index; 4447 4448 if (check_shl_overflow(pgoff, PMD_SHIFT, &off)) 4449 return -EINVAL; 4450 4451 size = ALIGN(size, PMD_SIZE); 4452 4453 if (!IS_ALIGNED(uaddr, PMD_SIZE) || !IS_ALIGNED((unsigned long)kaddr, PMD_SIZE)) 4454 return -EINVAL; 4455 4456 area = find_vm_area(kaddr); 4457 if (!area) 4458 return -EINVAL; 4459 4460 if (!(area->flags & VM_USERMAP)) 4461 return -EINVAL; 4462 4463 if (check_add_overflow(size, off, &end_index) || 4464 end_index > get_vm_area_size(area)) 4465 return -EINVAL; 4466 kaddr += off; 4467 4468 do { 4469 struct page *page = vmalloc_to_page(kaddr); 4470 int ret; 4471 4472 ret = hugetlb_insert_hugepage_pte_by_pa(vma->vm_mm, uaddr, 4473 vma->vm_page_prot, page_to_phys(page)); 4474 if (ret) 4475 return ret; 4476 4477 uaddr += PMD_SIZE; 4478 kaddr += PMD_SIZE; 4479 size -= PMD_SIZE; 4480 } while (size > 0); 4481 4482 vm_flags_set(vma, VM_DONTEXPAND | VM_DONTDUMP); 4483 4484 return 0; 4485 } 4486 EXPORT_SYMBOL(remap_vmalloc_hugepage_range_partial); 4487 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki

1 0

[openeuler:OLK-6.6 3544/3544] lib/iov_iter.c:330:38: sparse: sparse: incorrect type in argument 1 (different address spaces)
by kernel test robot 23 Dec '25

23 Dec '25

tree: https://gitee.com/openeuler/kernel.git OLK-6.6 head: c098fa18c07cc52100a52db8fd0c2900461888c9 commit: 19e163fcb526efb8bf229887f399ddf4847ceecb [3544/3544] iov_iter, x86: Be consistent about the __user tag on copy_mc_to_user() config: x86_64-randconfig-121-20251215 (https://download.01.org/0day-ci/archive/20251223/202512230823.urp3AnL9-lkp@…) compiler: clang version 20.1.8 (https://github.com/llvm/llvm-project 87f0227cb60147a26a1eeb4fb06e3b505e9c7261) reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20251223/202512230823.urp3AnL9-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/202512230823.urp3AnL9-lkp@intel.com/ sparse warnings: (new ones prefixed by >>) >> lib/iov_iter.c:330:38: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected void [noderef] __user *to @@ got void * @@ lib/iov_iter.c:330:38: sparse: expected void [noderef] __user *to lib/iov_iter.c:330:38: sparse: got void * lib/iov_iter.c: note: in included file (through arch/x86/include/asm/uaccess.h, include/linux/uaccess.h, include/linux/sched/task.h, ...): arch/x86/include/asm/uaccess_64.h:88:24: sparse: sparse: cast removes address space '__user' of expression arch/x86/include/asm/uaccess_64.h:88:24: sparse: sparse: cast removes address space '__user' of expression arch/x86/include/asm/uaccess_64.h:88:24: sparse: sparse: cast removes address space '__user' of expression arch/x86/include/asm/uaccess_64.h:88:24: sparse: sparse: cast removes address space '__user' of expression arch/x86/include/asm/uaccess_64.h:88:24: sparse: sparse: cast removes address space '__user' of expression lib/iov_iter.c: note: in included file: include/net/checksum.h:33:39: sparse: sparse: incorrect type in argument 3 (different base types) @@ expected restricted __wsum [usertype] sum @@ got unsigned int @@ include/net/checksum.h:33:39: sparse: expected restricted __wsum [usertype] sum include/net/checksum.h:33:39: sparse: got unsigned int include/net/checksum.h:33:39: sparse: sparse: incorrect type in argument 3 (different base types) @@ expected restricted __wsum [usertype] sum @@ got unsigned int @@ include/net/checksum.h:33:39: sparse: expected restricted __wsum [usertype] sum include/net/checksum.h:33:39: sparse: got unsigned int include/net/checksum.h:41:45: sparse: sparse: incorrect type in argument 3 (different base types) @@ expected restricted __wsum [usertype] sum @@ got unsigned int @@ include/net/checksum.h:41:45: sparse: expected restricted __wsum [usertype] sum include/net/checksum.h:41:45: sparse: got unsigned int include/net/checksum.h:41:45: sparse: sparse: incorrect type in argument 3 (different base types) @@ expected restricted __wsum [usertype] sum @@ got unsigned int @@ include/net/checksum.h:41:45: sparse: expected restricted __wsum [usertype] sum include/net/checksum.h:41:45: sparse: got unsigned int lib/iov_iter.c: note: in included file (through arch/x86/include/asm/uaccess.h, include/linux/uaccess.h, include/linux/sched/task.h, ...): arch/x86/include/asm/uaccess_64.h:88:24: sparse: sparse: cast removes address space '__user' of expression arch/x86/include/asm/uaccess_64.h:88:24: sparse: sparse: cast removes address space '__user' of expression arch/x86/include/asm/uaccess_64.h:88:24: sparse: sparse: cast removes address space '__user' of expression arch/x86/include/asm/uaccess_64.h:88:24: sparse: sparse: cast removes address space '__user' of expression arch/x86/include/asm/uaccess_64.h:88:24: sparse: sparse: cast removes address space '__user' of expression vim +330 lib/iov_iter.c c35e02480014f7 mm/iov_iter.c Matthew Wilcox 2014-08-01 324 ec6347bb43395c lib/iov_iter.c Dan Williams 2020-10-05 325 #ifdef CONFIG_ARCH_HAS_COPY_MC ec6347bb43395c lib/iov_iter.c Dan Williams 2020-10-05 326 static int copyout_mc(void __user *to, const void *from, size_t n) 8780356ef630aa lib/iov_iter.c Dan Williams 2018-05-03 327 { 96d4f267e40f95 lib/iov_iter.c Linus Torvalds 2019-01-03 328 if (access_ok(to, n)) { d0ef4c360f7ea3 lib/iov_iter.c Marco Elver 2020-01-21 329 instrument_copy_to_user(to, from, n); ec6347bb43395c lib/iov_iter.c Dan Williams 2020-10-05 @330 n = copy_mc_to_user((__force void *) to, from, n); 8780356ef630aa lib/iov_iter.c Dan Williams 2018-05-03 331 } 8780356ef630aa lib/iov_iter.c Dan Williams 2018-05-03 332 return n; 8780356ef630aa lib/iov_iter.c Dan Williams 2018-05-03 333 } 8780356ef630aa lib/iov_iter.c Dan Williams 2018-05-03 334 :::::: The code at line 330 was first introduced by commit :::::: ec6347bb43395cb92126788a1a5b25302543f815 x86, powerpc: Rename memcpy_mcsafe() to copy_mc_to_{user, kernel}() :::::: TO: Dan Williams <dan.j.williams(a)intel.com> :::::: CC: Borislav Petkov <bp(a)suse.de> -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki

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[openeuler:OLK-6.6 3541/3541] kernel/sched/fair.c:151:14: sparse: sparse: symbol 'sysctl_sched_prio_load_balance_enabled' was not declared. Should it be static?
by kernel test robot 23 Dec '25

23 Dec '25

tree: https://gitee.com/openeuler/kernel.git OLK-6.6 head: c098fa18c07cc52100a52db8fd0c2900461888c9 commit: 89bf80a4d6d5ba852b9042480e0be23c2c4a628c [3541/3541] sched: Introduce priority load balance for qos scheduler config: arm64-randconfig-r113-20251213 (https://download.01.org/0day-ci/archive/20251223/202512230734.tlvqbdf4-lkp@…) compiler: aarch64-linux-gcc (GCC) 12.5.0 reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20251223/202512230734.tlvqbdf4-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/202512230734.tlvqbdf4-lkp@intel.com/ sparse warnings: (new ones prefixed by >>) kernel/sched/fair.c:143:14: sparse: sparse: symbol 'sysctl_overload_detect_period' was not declared. Should it be static? kernel/sched/fair.c:144:14: sparse: sparse: symbol 'sysctl_offline_wait_interval' was not declared. Should it be static? >> kernel/sched/fair.c:151:14: sparse: sparse: symbol 'sysctl_sched_prio_load_balance_enabled' was not declared. Should it be static? kernel/sched/fair.c:179:5: sparse: sparse: symbol 'sysctl_sched_util_low_pct' was not declared. Should it be static? kernel/sched/fair.c:1271:34: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected struct sched_entity const *se @@ got struct sched_entity [noderef] __rcu * @@ kernel/sched/fair.c:1271:34: sparse: expected struct sched_entity const *se kernel/sched/fair.c:1271:34: sparse: got struct sched_entity [noderef] __rcu * kernel/sched/fair.c:3054:13: sparse: sparse: incorrect type in assignment (different address spaces) @@ expected struct task_struct *tsk @@ got struct task_struct [noderef] __rcu * @@ kernel/sched/fair.c:3054:13: sparse: expected struct task_struct *tsk kernel/sched/fair.c:3054:13: sparse: got struct task_struct [noderef] __rcu * kernel/sched/fair.c:12846:9: sparse: sparse: incorrect type in assignment (different address spaces) @@ expected struct sched_domain *[assigned] sd @@ got struct sched_domain [noderef] __rcu *parent @@ kernel/sched/fair.c:12846:9: sparse: expected struct sched_domain *[assigned] sd kernel/sched/fair.c:12846:9: sparse: got struct sched_domain [noderef] __rcu *parent kernel/sched/fair.c:5925:22: sparse: sparse: incompatible types in comparison expression (different address spaces): kernel/sched/fair.c:5925:22: sparse: struct task_struct [noderef] __rcu * kernel/sched/fair.c:5925:22: sparse: struct task_struct * kernel/sched/fair.c:7998:20: sparse: sparse: incorrect type in assignment (different address spaces) @@ expected struct sched_domain *[assigned] sd @@ got struct sched_domain [noderef] __rcu *parent @@ kernel/sched/fair.c:7998:20: sparse: expected struct sched_domain *[assigned] sd kernel/sched/fair.c:7998:20: sparse: got struct sched_domain [noderef] __rcu *parent kernel/sched/fair.c:8310:9: sparse: sparse: incorrect type in assignment (different address spaces) @@ expected struct sched_domain *[assigned] tmp @@ got struct sched_domain [noderef] __rcu *parent @@ kernel/sched/fair.c:8310:9: sparse: expected struct sched_domain *[assigned] tmp kernel/sched/fair.c:8310:9: sparse: got struct sched_domain [noderef] __rcu *parent kernel/sched/fair.c:8421:38: sparse: sparse: incorrect type in initializer (different address spaces) @@ expected struct task_struct *curr @@ got struct task_struct [noderef] __rcu *curr @@ kernel/sched/fair.c:8421:38: sparse: expected struct task_struct *curr kernel/sched/fair.c:8421:38: sparse: got struct task_struct [noderef] __rcu *curr kernel/sched/fair.c:8641:22: sparse: sparse: incompatible types in comparison expression (different address spaces): kernel/sched/fair.c:8641:22: sparse: struct task_struct [noderef] __rcu * kernel/sched/fair.c:8641:22: sparse: struct task_struct * kernel/sched/fair.c:8999:38: sparse: sparse: incorrect type in initializer (different address spaces) @@ expected struct task_struct *curr @@ got struct task_struct [noderef] __rcu *curr @@ kernel/sched/fair.c:8999:38: sparse: expected struct task_struct *curr kernel/sched/fair.c:8999:38: sparse: got struct task_struct [noderef] __rcu *curr kernel/sched/fair.c:10040:40: sparse: sparse: incorrect type in initializer (different address spaces) @@ expected struct sched_domain *child @@ got struct sched_domain [noderef] __rcu *child @@ kernel/sched/fair.c:10040:40: sparse: expected struct sched_domain *child kernel/sched/fair.c:10040:40: sparse: got struct sched_domain [noderef] __rcu *child kernel/sched/fair.c:10677:22: sparse: sparse: incompatible types in comparison expression (different address spaces): kernel/sched/fair.c:10677:22: sparse: struct task_struct [noderef] __rcu * kernel/sched/fair.c:10677:22: sparse: struct task_struct * kernel/sched/fair.c:12118:9: sparse: sparse: incorrect type in assignment (different address spaces) @@ expected struct sched_domain *[assigned] sd @@ got struct sched_domain [noderef] __rcu *parent @@ kernel/sched/fair.c:12118:9: sparse: expected struct sched_domain *[assigned] sd kernel/sched/fair.c:12118:9: sparse: got struct sched_domain [noderef] __rcu *parent kernel/sched/fair.c:11775:44: sparse: sparse: incorrect type in initializer (different address spaces) @@ expected struct sched_domain *sd_parent @@ got struct sched_domain [noderef] __rcu *parent @@ kernel/sched/fair.c:11775:44: sparse: expected struct sched_domain *sd_parent kernel/sched/fair.c:11775:44: sparse: got struct sched_domain [noderef] __rcu *parent kernel/sched/fair.c:12214:9: sparse: sparse: incorrect type in assignment (different address spaces) @@ expected struct sched_domain *[assigned] sd @@ got struct sched_domain [noderef] __rcu *parent @@ kernel/sched/fair.c:12214:9: sparse: expected struct sched_domain *[assigned] sd kernel/sched/fair.c:12214:9: sparse: got struct sched_domain [noderef] __rcu *parent kernel/sched/fair.c:3000:9: sparse: sparse: context imbalance in 'task_numa_placement' - different lock contexts for basic block kernel/sched/fair.c:7214:28: sparse: sparse: incorrect type in assignment (different address spaces) @@ expected struct sched_domain *sd @@ got struct sched_domain [noderef] __rcu *child @@ kernel/sched/fair.c:7214:28: sparse: expected struct sched_domain *sd kernel/sched/fair.c:7214:28: sparse: got struct sched_domain [noderef] __rcu *child kernel/sched/fair.c:7220:28: sparse: sparse: incorrect type in assignment (different address spaces) @@ expected struct sched_domain *sd @@ got struct sched_domain [noderef] __rcu *child @@ kernel/sched/fair.c:7220:28: sparse: expected struct sched_domain *sd kernel/sched/fair.c:7220:28: sparse: got struct sched_domain [noderef] __rcu *child kernel/sched/fair.c:7227:28: sparse: sparse: incorrect type in assignment (different address spaces) @@ expected struct sched_domain *sd @@ got struct sched_domain [noderef] __rcu *child @@ kernel/sched/fair.c:7227:28: sparse: expected struct sched_domain *sd kernel/sched/fair.c:7227:28: sparse: got struct sched_domain [noderef] __rcu *child kernel/sched/fair.c:7235:17: sparse: sparse: incorrect type in assignment (different address spaces) @@ expected struct sched_domain *[assigned] tmp @@ got struct sched_domain [noderef] __rcu *parent @@ kernel/sched/fair.c:7235:17: sparse: expected struct sched_domain *[assigned] tmp kernel/sched/fair.c:7235:17: sparse: got struct sched_domain [noderef] __rcu *parent kernel/sched/fair.c: note: in included file: kernel/sched/sched.h:2312:9: sparse: sparse: incompatible types in comparison expression (different address spaces): kernel/sched/sched.h:2312:9: sparse: struct task_struct [noderef] __rcu * kernel/sched/sched.h:2312:9: sparse: struct task_struct * kernel/sched/sched.h:2148:25: sparse: sparse: incompatible types in comparison expression (different address spaces): kernel/sched/sched.h:2148:25: sparse: struct task_struct [noderef] __rcu * kernel/sched/sched.h:2148:25: sparse: struct task_struct * kernel/sched/sched.h:2148:25: sparse: sparse: incompatible types in comparison expression (different address spaces): kernel/sched/sched.h:2148:25: sparse: struct task_struct [noderef] __rcu * kernel/sched/sched.h:2148:25: sparse: struct task_struct * vim +/sysctl_sched_prio_load_balance_enabled +151 kernel/sched/fair.c 149 150 #ifdef CONFIG_QOS_SCHED_PRIO_LB > 151 unsigned int sysctl_sched_prio_load_balance_enabled; 152 #endif 153 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki

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[openeuler:OLK-6.6 3557/3557] security/integrity/ima/ima_digest_list.c:164:37: sparse: sparse: cast to restricted __le16
by kernel test robot 23 Dec '25

23 Dec '25

tree: https://gitee.com/openeuler/kernel.git OLK-6.6 head: c098fa18c07cc52100a52db8fd0c2900461888c9 commit: 5fbe16a682d5af0c2f7145096851e31e3c921d64 [3557/3557] ima: Execute parser to upload digest lists not recognizable by the kernel config: arm64-randconfig-r132-20251218 (https://download.01.org/0day-ci/archive/20251223/202512230715.3UJUkD3z-lkp@…) compiler: clang version 20.1.8 (https://github.com/llvm/llvm-project 87f0227cb60147a26a1eeb4fb06e3b505e9c7261) reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20251223/202512230715.3UJUkD3z-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/202512230715.3UJUkD3z-lkp@intel.com/ sparse warnings: (new ones prefixed by >>) >> security/integrity/ima/ima_digest_list.c:164:37: sparse: sparse: cast to restricted __le16 security/integrity/ima/ima_digest_list.c:165:42: sparse: sparse: cast to restricted __le16 security/integrity/ima/ima_digest_list.c:166:37: sparse: sparse: cast to restricted __le16 >> security/integrity/ima/ima_digest_list.c:167:38: sparse: sparse: cast to restricted __le32 security/integrity/ima/ima_digest_list.c:168:40: sparse: sparse: cast to restricted __le32 >> security/integrity/ima/ima_digest_list.c:416:20: sparse: sparse: symbol 'parser_task' was not declared. Should it be static? vim +164 security/integrity/ima/ima_digest_list.c b3fef06570ef2b Roberto Sassu 2023-09-12 138 b3fef06570ef2b Roberto Sassu 2023-09-12 139 int ima_parse_compact_list(loff_t size, void *buf, int op) b3fef06570ef2b Roberto Sassu 2023-09-12 140 { b3fef06570ef2b Roberto Sassu 2023-09-12 141 u8 *digest; b3fef06570ef2b Roberto Sassu 2023-09-12 142 void *bufp = buf, *bufendp = buf + size; b3fef06570ef2b Roberto Sassu 2023-09-12 143 struct compact_list_hdr *hdr; b3fef06570ef2b Roberto Sassu 2023-09-12 144 size_t digest_len; b3fef06570ef2b Roberto Sassu 2023-09-12 145 int ret = 0, i; b3fef06570ef2b Roberto Sassu 2023-09-12 146 80701e75d21f48 Roberto Sassu 2023-09-12 147 if (!(ima_digest_list_actions & ima_policy_flag)) 80701e75d21f48 Roberto Sassu 2023-09-12 148 return -EACCES; 80701e75d21f48 Roberto Sassu 2023-09-12 149 b3fef06570ef2b Roberto Sassu 2023-09-12 150 while (bufp < bufendp) { b3fef06570ef2b Roberto Sassu 2023-09-12 151 if (bufp + sizeof(*hdr) > bufendp) { b3fef06570ef2b Roberto Sassu 2023-09-12 152 pr_err("compact list, invalid data\n"); b3fef06570ef2b Roberto Sassu 2023-09-12 153 return -EINVAL; b3fef06570ef2b Roberto Sassu 2023-09-12 154 } b3fef06570ef2b Roberto Sassu 2023-09-12 155 b3fef06570ef2b Roberto Sassu 2023-09-12 156 hdr = bufp; b3fef06570ef2b Roberto Sassu 2023-09-12 157 b3fef06570ef2b Roberto Sassu 2023-09-12 158 if (hdr->version != 1) { b3fef06570ef2b Roberto Sassu 2023-09-12 159 pr_err("compact list, unsupported version\n"); b3fef06570ef2b Roberto Sassu 2023-09-12 160 return -EINVAL; b3fef06570ef2b Roberto Sassu 2023-09-12 161 } b3fef06570ef2b Roberto Sassu 2023-09-12 162 b3fef06570ef2b Roberto Sassu 2023-09-12 163 if (ima_canonical_fmt) { b3fef06570ef2b Roberto Sassu 2023-09-12 @164 hdr->type = le16_to_cpu(hdr->type); b3fef06570ef2b Roberto Sassu 2023-09-12 165 hdr->modifiers = le16_to_cpu(hdr->modifiers); b3fef06570ef2b Roberto Sassu 2023-09-12 166 hdr->algo = le16_to_cpu(hdr->algo); b3fef06570ef2b Roberto Sassu 2023-09-12 @167 hdr->count = le32_to_cpu(hdr->count); b3fef06570ef2b Roberto Sassu 2023-09-12 168 hdr->datalen = le32_to_cpu(hdr->datalen); b3fef06570ef2b Roberto Sassu 2023-09-12 169 } b3fef06570ef2b Roberto Sassu 2023-09-12 170 b3fef06570ef2b Roberto Sassu 2023-09-12 171 if (hdr->algo >= HASH_ALGO__LAST) b3fef06570ef2b Roberto Sassu 2023-09-12 172 return -EINVAL; b3fef06570ef2b Roberto Sassu 2023-09-12 173 b3fef06570ef2b Roberto Sassu 2023-09-12 174 digest_len = hash_digest_size[hdr->algo]; b3fef06570ef2b Roberto Sassu 2023-09-12 175 b3fef06570ef2b Roberto Sassu 2023-09-12 176 if (hdr->type >= COMPACT__LAST) { b3fef06570ef2b Roberto Sassu 2023-09-12 177 pr_err("compact list, invalid type %d\n", hdr->type); b3fef06570ef2b Roberto Sassu 2023-09-12 178 return -EINVAL; b3fef06570ef2b Roberto Sassu 2023-09-12 179 } b3fef06570ef2b Roberto Sassu 2023-09-12 180 b3fef06570ef2b Roberto Sassu 2023-09-12 181 bufp += sizeof(*hdr); b3fef06570ef2b Roberto Sassu 2023-09-12 182 b3fef06570ef2b Roberto Sassu 2023-09-12 183 for (i = 0; i < hdr->count; i++) { b3fef06570ef2b Roberto Sassu 2023-09-12 184 if (bufp + digest_len > bufendp) { b3fef06570ef2b Roberto Sassu 2023-09-12 185 pr_err("compact list, invalid data\n"); b3fef06570ef2b Roberto Sassu 2023-09-12 186 return -EINVAL; b3fef06570ef2b Roberto Sassu 2023-09-12 187 } b3fef06570ef2b Roberto Sassu 2023-09-12 188 b3fef06570ef2b Roberto Sassu 2023-09-12 189 digest = bufp; b3fef06570ef2b Roberto Sassu 2023-09-12 190 bufp += digest_len; b3fef06570ef2b Roberto Sassu 2023-09-12 191 b3fef06570ef2b Roberto Sassu 2023-09-12 192 if (op == DIGEST_LIST_OP_ADD) b3fef06570ef2b Roberto Sassu 2023-09-12 193 ret = ima_add_digest_data_entry(digest, b3fef06570ef2b Roberto Sassu 2023-09-12 194 hdr->algo, hdr->type, hdr->modifiers); b3fef06570ef2b Roberto Sassu 2023-09-12 195 else if (op == DIGEST_LIST_OP_DEL) b3fef06570ef2b Roberto Sassu 2023-09-12 196 ima_del_digest_data_entry(digest, hdr->algo, b3fef06570ef2b Roberto Sassu 2023-09-12 197 hdr->type); b3fef06570ef2b Roberto Sassu 2023-09-12 198 if (ret < 0 && ret != -EEXIST) b3fef06570ef2b Roberto Sassu 2023-09-12 199 return ret; b3fef06570ef2b Roberto Sassu 2023-09-12 200 } b3fef06570ef2b Roberto Sassu 2023-09-12 201 b3fef06570ef2b Roberto Sassu 2023-09-12 202 if (i != hdr->count || b3fef06570ef2b Roberto Sassu 2023-09-12 203 bufp != (void *)hdr + sizeof(*hdr) + hdr->datalen) { b3fef06570ef2b Roberto Sassu 2023-09-12 204 pr_err("compact list, invalid data\n"); b3fef06570ef2b Roberto Sassu 2023-09-12 205 return -EINVAL; b3fef06570ef2b Roberto Sassu 2023-09-12 206 } b3fef06570ef2b Roberto Sassu 2023-09-12 207 } b3fef06570ef2b Roberto Sassu 2023-09-12 208 b3fef06570ef2b Roberto Sassu 2023-09-12 209 return bufp - buf; b3fef06570ef2b Roberto Sassu 2023-09-12 210 } 80701e75d21f48 Roberto Sassu 2023-09-12 211 :::::: The code at line 164 was first introduced by commit :::::: b3fef06570ef2b61dd7181e5c1d128bfcbf6b2ef ima: Add parser of compact digest list :::::: TO: Roberto Sassu <roberto.sassu(a)huawei.com> :::::: CC: zgzxx <zhangguangzhi3(a)huawei.com> -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki

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[openeuler:OLK-6.6 3544/3544] drivers/video/fbdev/ls2k500sfb.c:143:27: sparse: sparse: incorrect type in assignment (different address spaces)
by kernel test robot 23 Dec '25

23 Dec '25

tree: https://gitee.com/openeuler/kernel.git OLK-6.6 head: c098fa18c07cc52100a52db8fd0c2900461888c9 commit: 8248d42b7c5f4338a54f26d8efebec8614b43466 [3544/3544] fbdev: add ls2k500sfb driver for ls2k500 bmc. config: x86_64-randconfig-r121-20251215 (https://download.01.org/0day-ci/archive/20251223/202512230505.cMBSrJNZ-lkp@…) compiler: clang version 20.1.8 (https://github.com/llvm/llvm-project 87f0227cb60147a26a1eeb4fb06e3b505e9c7261) reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20251223/202512230505.cMBSrJNZ-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/202512230505.cMBSrJNZ-lkp@intel.com/ sparse warnings: (new ones prefixed by >>) >> drivers/video/fbdev/ls2k500sfb.c:143:27: sparse: sparse: incorrect type in assignment (different address spaces) @@ expected void *static p @@ got void [noderef] __iomem * @@ drivers/video/fbdev/ls2k500sfb.c:143:27: sparse: expected void *static p drivers/video/fbdev/ls2k500sfb.c:143:27: sparse: got void [noderef] __iomem * >> drivers/video/fbdev/ls2k500sfb.c:145:30: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected void const volatile [noderef] __iomem *addr @@ got void *static p @@ drivers/video/fbdev/ls2k500sfb.c:145:30: sparse: expected void const volatile [noderef] __iomem *addr drivers/video/fbdev/ls2k500sfb.c:145:30: sparse: got void *static p >> drivers/video/fbdev/ls2k500sfb.c:199:36: sparse: sparse: incorrect type in argument 2 (different address spaces) @@ expected void volatile [noderef] __iomem *addr @@ got void *static p @@ drivers/video/fbdev/ls2k500sfb.c:199:36: sparse: expected void volatile [noderef] __iomem *addr drivers/video/fbdev/ls2k500sfb.c:199:36: sparse: got void *static p >> drivers/video/fbdev/ls2k500sfb.c:201:37: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected void const volatile [noderef] __iomem *addr @@ got void * @@ drivers/video/fbdev/ls2k500sfb.c:201:37: sparse: expected void const volatile [noderef] __iomem *addr drivers/video/fbdev/ls2k500sfb.c:201:37: sparse: got void * >> drivers/video/fbdev/ls2k500sfb.c:254:13: sparse: sparse: symbol 'ls2k500sfb_interrupt' was not declared. Should it be static? >> drivers/video/fbdev/ls2k500sfb.c:456:28: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected void const volatile [noderef] __iomem *addr @@ got char *preg @@ drivers/video/fbdev/ls2k500sfb.c:456:28: sparse: expected void const volatile [noderef] __iomem *addr drivers/video/fbdev/ls2k500sfb.c:456:28: sparse: got char *preg >> drivers/video/fbdev/ls2k500sfb.c:457:32: sparse: sparse: incorrect type in argument 2 (different address spaces) @@ expected void volatile [noderef] __iomem *addr @@ got char *preg @@ drivers/video/fbdev/ls2k500sfb.c:457:32: sparse: expected void volatile [noderef] __iomem *addr drivers/video/fbdev/ls2k500sfb.c:457:32: sparse: got char *preg >> drivers/video/fbdev/ls2k500sfb.c:569:19: sparse: sparse: incorrect type in assignment (different address spaces) @@ expected char *penv @@ got void [noderef] __iomem * @@ drivers/video/fbdev/ls2k500sfb.c:569:19: sparse: expected char *penv drivers/video/fbdev/ls2k500sfb.c:569:19: sparse: got void [noderef] __iomem * >> drivers/video/fbdev/ls2k500sfb.c:570:19: sparse: sparse: incorrect type in assignment (different address spaces) @@ expected char *preg @@ got void [noderef] __iomem * @@ drivers/video/fbdev/ls2k500sfb.c:570:19: sparse: expected char *preg drivers/video/fbdev/ls2k500sfb.c:570:19: sparse: got void [noderef] __iomem * drivers/video/fbdev/ls2k500sfb.c:671:14: sparse: sparse: incorrect type in assignment (different address spaces) @@ expected char *penv @@ got void [noderef] __iomem * @@ drivers/video/fbdev/ls2k500sfb.c:671:14: sparse: expected char *penv drivers/video/fbdev/ls2k500sfb.c:671:14: sparse: got void [noderef] __iomem * vim +143 drivers/video/fbdev/ls2k500sfb.c 113 114 static void ls2k500sfb_events_fn(struct work_struct *work) 115 { 116 struct ls2k500sfb_struct *priv = container_of(work, struct ls2k500sfb_struct, work); 117 struct pci_dev *pdev = priv->dev; 118 struct pci_dev *ppdev = pdev->bus->self; 119 uint32_t i, d, timeout, retry = 0; 120 static const uint32_t index[] = { 121 0x10, 0x14, 0x18, 0x1c, 0x20, 0x24, 0x30, 0x3c, 0x54, 0x58, 0x78, 0x7c, 0x80, 4 122 }; 123 124 static uint32_t data[sizeof(index) / 4]; 125 static const uint32_t cindex[] = { 0x10, 0x3c, 4 }; 126 127 static uint32_t cdata[sizeof(cindex) / 4]; 128 static uint32_t d80c, d71c, ctrl; 129 static void *p; 130 131 if (!priv->running) { 132 for (i = 0; i < ARRAY_SIZE(index); i++) 133 pci_read_config_dword(ppdev, index[i], &data[i]); 134 for (i = 0; i < ARRAY_SIZE(cindex); i++) 135 pci_read_config_dword(pdev, cindex[i], &cdata[i]); 136 if (ppdev->vendor == 0x14) { 137 pci_read_config_dword(ppdev, 0x80c, &d80c); 138 d80c = (d80c & ~(3 << 17)) | (1 << 17); 139 140 pci_read_config_dword(ppdev, 0x71c, &d71c); 141 d71c |= 1 << 26; 142 > 143 p = pci_iomap(ppdev, 0, 0x100); 144 } > 145 ctrl = readl(p); 146 return; 147 } 148 local_bh_disable(); 149 pciebreak_smp_send_stop(100); 150 wmb(); /* flush all write before we disable pcie window */ 151 pci_write_config_dword(ppdev, 0x18, 0); 152 pci_write_config_dword(ppdev, 0x1c, 0); 153 pci_write_config_dword(ppdev, 0x20, 0); 154 atomic_set(&waiting_for_pciebreak_ipi, 0); 155 wmb(); /* flush all write after change pcie window */ 156 local_bh_enable(); 157 if (ppdev->vendor == 0x14) { 158 timeout = 10000; 159 while (timeout) { 160 pci_read_config_dword(ppdev, 0x10, &d); 161 d &= ~0xf; 162 if (!d) 163 break; 164 mdelay(1); 165 timeout--; 166 }; 167 if (!timeout) 168 pr_info("bar not clear 0\n"); 169 170 pci_read_config_dword(ppdev, 0x0, &d); 171 pr_info("pcie port deviceid=0x%x recover begin\n", d); 172 retrain: 173 while (1) { 174 pci_write_config_dword(ppdev, index[0], data[0]); 175 pci_read_config_dword(ppdev, index[0], &d); 176 d &= ~0xf; 177 if (d) 178 break; 179 mdelay(1); 180 } 181 182 while (1) { 183 for (i = 0; i < ARRAY_SIZE(index); i++) { 184 if (index[i] != 0x18 && index[i] != 0x1c && index[i] != 0x20) 185 pci_write_config_dword(ppdev, index[i], data[i]); 186 } 187 pci_write_config_dword(ppdev, 0x80c, d80c); 188 pci_write_config_dword(ppdev, 0x71c, d71c); 189 190 pci_read_config_dword(ppdev, 0x10, &d); 191 d &= ~0xf; 192 if (d) 193 break; 194 mdelay(1); 195 } 196 197 timeout = 10000; 198 > 199 writel(ctrl | 0x8, p); 200 while (1) { > 201 d = readl(p + 0xc); 202 if ((d & 0x11) == 0x11) { 203 break; 204 } else if (!timeout) { 205 pr_info("pcie train failed status=0x%x\n", d); 206 goto out; 207 } 208 mdelay(1); 209 timeout--; 210 } 211 212 213 pr_info("pcie recovered done\n"); 214 215 if (!retry) { 216 /*wait u-boot ddr config */ 217 set_current_state(TASK_UNINTERRUPTIBLE); 218 schedule_timeout(HZ*resetbootwait); 219 set_current_state(TASK_RUNNING); 220 pci_read_config_dword(ppdev, 0x10, &d); 221 d &= ~0xf; 222 if (!d) { 223 retry = 1; 224 goto retrain; 225 } 226 } 227 } else { 228 set_current_state(TASK_UNINTERRUPTIBLE); 229 schedule_timeout(HZ*resetbootwait); 230 set_current_state(TASK_RUNNING); 231 } 232 local_bh_disable(); 233 pciebreak_smp_send_stop(10000); 234 wmb(); /* flush all write before we update pcie window */ 235 for (i = 0; i < ARRAY_SIZE(index); i++) 236 pci_write_config_dword(ppdev, index[i], data[i]); 237 238 for (i = 0; i < ARRAY_SIZE(cindex); i++) 239 pci_write_config_dword(pdev, cindex[i], cdata[i]); 240 atomic_set(&waiting_for_pciebreak_ipi, 0); 241 wmb(); /* flush all write after we update pcie window */ 242 local_bh_enable(); 243 244 245 pr_info("redraw console\n"); 246 247 saved_console = fg_console; 248 switch_console(fg_console > 0?fg_console - 1 : fg_console + 1); 249 queue_delayed_work(priv->wq, &priv->redraw_work, HZ); 250 out: 251 priv->running = 0; 252 } 253 > 254 irqreturn_t ls2k500sfb_interrupt(int irq, void *arg) 255 { 256 struct ls2k500sfb_struct *priv = arg; 257 struct pci_dev *pdev = priv->dev; 258 259 if (irq == pdev->irq) 260 pr_info("ls2k500sfb pcie interrupt\n"); 261 else 262 pr_info("ls2k500sfb gpio interrupt\n"); 263 if (system_state != SYSTEM_RUNNING) 264 return IRQ_HANDLED; 265 266 if (!priv->running) { 267 if (!resetdelay || time_after(jiffies, priv->reset_time + resetdelay * HZ)) { 268 priv->running = 1; 269 queue_work(priv->wq, &priv->work); 270 } 271 priv->reset_time = jiffies; 272 } 273 return IRQ_HANDLED; 274 } 275 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki

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[openeuler:OLK-5.10 3407/3407] kernel/cgroup/cgroup.c:6217: warning: Function parameter or member 'f' not described in 'cgroup_get_from_file'
by kernel test robot 23 Dec '25

23 Dec '25

Hi Yosry, FYI, the error/warning still remains. tree: https://gitee.com/openeuler/kernel.git OLK-5.10 head: 1588d318a9e388d05b6cf5e2a63134c8beb6a355 commit: 590ef7039097222551e104343ae4ba74e4ed2f87 [3407/3407] cgroup: add cgroup_v1v2_get_from_[fd/file]() config: arm64-randconfig-r071-20251212 (https://download.01.org/0day-ci/archive/20251223/202512230521.c3DzuiJA-lkp@…) compiler: aarch64-linux-gcc (GCC) 10.5.0 reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20251223/202512230521.c3DzuiJA-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/202512230521.c3DzuiJA-lkp@intel.com/ All warnings (new ones prefixed by >>): >> kernel/cgroup/cgroup.c:6217: warning: Function parameter or member 'f' not described in 'cgroup_get_from_file' kernel/cgroup/cgroup.c:6369: warning: Function parameter or member 'kargs' not described in 'cgroup_can_fork' kernel/cgroup/cgroup.c:6430: warning: Function parameter or member 'kargs' not described in 'cgroup_post_fork' >> kernel/cgroup/cgroup.c:6716: warning: Function parameter or member 'fd' not described in 'cgroup_get_from_fd' vim +6217 kernel/cgroup/cgroup.c 6211 6212 /** 6213 * cgroup_get_from_file - same as cgroup_v1v2_get_from_file, but only supports 6214 * cgroup2. 6215 */ 6216 static struct cgroup *cgroup_get_from_file(struct file *f) > 6217 { 6218 struct cgroup *cgrp = cgroup_v1v2_get_from_file(f); 6219 6220 if (IS_ERR(cgrp)) 6221 return ERR_CAST(cgrp); 6222 6223 if (!cgroup_on_dfl(cgrp)) { 6224 cgroup_put(cgrp); 6225 return ERR_PTR(-EBADF); 6226 } 6227 6228 return cgrp; 6229 } 6230 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki

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[openeuler:OLK-6.6 3541/3541] kernel/sched/topology.c:2310:32: sparse: sparse: incorrect type in initializer (different base types)
by kernel test robot 23 Dec '25

23 Dec '25

tree: https://gitee.com/openeuler/kernel.git OLK-6.6 head: c098fa18c07cc52100a52db8fd0c2900461888c9 commit: 0ccb3f810722de634beed0dc6fe5c59d963b4c50 [3541/3541] sched/topology: Provide cfs_overload_cpus bitmap config: arm64-randconfig-r113-20251213 (https://download.01.org/0day-ci/archive/20251223/202512230528.roqd2yzx-lkp@…) compiler: aarch64-linux-gcc (GCC) 12.5.0 reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20251223/202512230528.roqd2yzx-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/202512230528.roqd2yzx-lkp@intel.com/ sparse warnings: (new ones prefixed by >>) kernel/sched/build_utility.c: note: in included file: kernel/sched/stop_task.c:73:38: sparse: sparse: incorrect type in initializer (different address spaces) @@ expected struct task_struct *curr @@ got struct task_struct [noderef] __rcu *curr @@ kernel/sched/stop_task.c:73:38: sparse: expected struct task_struct *curr kernel/sched/stop_task.c:73:38: sparse: got struct task_struct [noderef] __rcu *curr kernel/sched/build_utility.c: note: in included file: >> kernel/sched/topology.c:2310:32: sparse: sparse: incorrect type in initializer (different base types) @@ expected int flags @@ got restricted gfp_t @@ kernel/sched/topology.c:2310:32: sparse: expected int flags kernel/sched/topology.c:2310:32: sparse: got restricted gfp_t >> kernel/sched/topology.c:2318:61: sparse: sparse: incorrect type in argument 3 (different base types) @@ expected restricted gfp_t [usertype] flags @@ got int flags @@ kernel/sched/topology.c:2318:61: sparse: expected restricted gfp_t [usertype] flags kernel/sched/topology.c:2318:61: sparse: got int flags kernel/sched/topology.c:2346:58: sparse: sparse: incorrect type in assignment (different address spaces) @@ expected struct sched_domain *[assigned] sd @@ got struct sched_domain [noderef] __rcu *parent @@ kernel/sched/topology.c:2346:58: sparse: expected struct sched_domain *[assigned] sd kernel/sched/topology.c:2346:58: sparse: got struct sched_domain [noderef] __rcu *parent kernel/sched/topology.c:491:19: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected struct perf_domain *pd @@ got struct perf_domain [noderef] __rcu *pd @@ kernel/sched/topology.c:491:19: sparse: expected struct perf_domain *pd kernel/sched/topology.c:491:19: sparse: got struct perf_domain [noderef] __rcu *pd kernel/sched/topology.c:655:49: sparse: sparse: incorrect type in initializer (different address spaces) @@ expected struct sched_domain *parent @@ got struct sched_domain [noderef] __rcu *parent @@ kernel/sched/topology.c:655:49: sparse: expected struct sched_domain *parent kernel/sched/topology.c:655:49: sparse: got struct sched_domain [noderef] __rcu *parent kernel/sched/topology.c:702:9: sparse: sparse: incompatible types in comparison expression (different address spaces): kernel/sched/topology.c:702:9: sparse: struct sparsemask [noderef] __rcu * kernel/sched/topology.c:702:9: sparse: struct sparsemask * kernel/sched/topology.c:730:50: sparse: sparse: incorrect type in initializer (different address spaces) @@ expected struct sched_domain *parent @@ got struct sched_domain [noderef] __rcu *parent @@ kernel/sched/topology.c:730:50: sparse: expected struct sched_domain *parent kernel/sched/topology.c:730:50: sparse: got struct sched_domain [noderef] __rcu *parent kernel/sched/topology.c:738:55: sparse: sparse: incorrect type in assignment (different address spaces) @@ expected struct sched_domain [noderef] __rcu *[noderef] __rcu child @@ got struct sched_domain *[assigned] tmp @@ kernel/sched/topology.c:738:55: sparse: expected struct sched_domain [noderef] __rcu *[noderef] __rcu child kernel/sched/topology.c:738:55: sparse: got struct sched_domain *[assigned] tmp kernel/sched/topology.c:751:29: sparse: sparse: incorrect type in assignment (different address spaces) @@ expected struct sched_domain *[assigned] tmp @@ got struct sched_domain [noderef] __rcu *parent @@ kernel/sched/topology.c:751:29: sparse: expected struct sched_domain *[assigned] tmp kernel/sched/topology.c:751:29: sparse: got struct sched_domain [noderef] __rcu *parent kernel/sched/topology.c:756:20: sparse: sparse: incorrect type in assignment (different address spaces) @@ expected struct sched_domain *sd @@ got struct sched_domain [noderef] __rcu *parent @@ kernel/sched/topology.c:756:20: sparse: expected struct sched_domain *sd kernel/sched/topology.c:756:20: sparse: got struct sched_domain [noderef] __rcu *parent kernel/sched/topology.c:777:13: sparse: sparse: incorrect type in assignment (different address spaces) @@ expected struct sched_domain *[assigned] tmp @@ got struct sched_domain [noderef] __rcu *sd @@ kernel/sched/topology.c:777:13: sparse: expected struct sched_domain *[assigned] tmp kernel/sched/topology.c:777:13: sparse: got struct sched_domain [noderef] __rcu *sd kernel/sched/topology.c:939:70: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected struct sched_domain *sd @@ got struct sched_domain [noderef] __rcu *child @@ kernel/sched/topology.c:939:70: sparse: expected struct sched_domain *sd kernel/sched/topology.c:939:70: sparse: got struct sched_domain [noderef] __rcu *child kernel/sched/topology.c:968:59: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected struct sched_domain *sd @@ got struct sched_domain [noderef] __rcu *child @@ kernel/sched/topology.c:968:59: sparse: expected struct sched_domain *sd kernel/sched/topology.c:968:59: sparse: got struct sched_domain [noderef] __rcu *child kernel/sched/topology.c:1014:57: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected struct sched_domain *sd @@ got struct sched_domain [noderef] __rcu *child @@ kernel/sched/topology.c:1014:57: sparse: expected struct sched_domain *sd kernel/sched/topology.c:1014:57: sparse: got struct sched_domain [noderef] __rcu *child kernel/sched/topology.c:1016:25: sparse: sparse: incorrect type in assignment (different address spaces) @@ expected struct sched_domain *sibling @@ got struct sched_domain [noderef] __rcu *child @@ kernel/sched/topology.c:1016:25: sparse: expected struct sched_domain *sibling kernel/sched/topology.c:1016:25: sparse: got struct sched_domain [noderef] __rcu *child kernel/sched/topology.c:1024:55: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected struct sched_domain *sd @@ got struct sched_domain [noderef] __rcu *child @@ kernel/sched/topology.c:1024:55: sparse: expected struct sched_domain *sd kernel/sched/topology.c:1024:55: sparse: got struct sched_domain [noderef] __rcu *child kernel/sched/topology.c:1026:25: sparse: sparse: incorrect type in assignment (different address spaces) @@ expected struct sched_domain *sibling @@ got struct sched_domain [noderef] __rcu *child @@ kernel/sched/topology.c:1026:25: sparse: expected struct sched_domain *sibling kernel/sched/topology.c:1026:25: sparse: got struct sched_domain [noderef] __rcu *child kernel/sched/topology.c:1096:62: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected struct sched_domain *sd @@ got struct sched_domain [noderef] __rcu *child @@ kernel/sched/topology.c:1096:62: sparse: expected struct sched_domain *sd kernel/sched/topology.c:1096:62: sparse: got struct sched_domain [noderef] __rcu *child kernel/sched/topology.c:1200:40: sparse: sparse: incorrect type in initializer (different address spaces) @@ expected struct sched_domain *child @@ got struct sched_domain [noderef] __rcu *child @@ kernel/sched/topology.c:1200:40: sparse: expected struct sched_domain *child kernel/sched/topology.c:1200:40: sparse: got struct sched_domain [noderef] __rcu *child kernel/sched/topology.c:1620:43: sparse: sparse: incorrect type in initializer (different address spaces) @@ expected struct sched_domain [noderef] __rcu *child @@ got struct sched_domain *child @@ kernel/sched/topology.c:1620:43: sparse: expected struct sched_domain [noderef] __rcu *child kernel/sched/topology.c:1620:43: sparse: got struct sched_domain *child kernel/sched/topology.c:1758:21: sparse: sparse: incompatible types in comparison expression (different address spaces): kernel/sched/topology.c:1758:21: sparse: int [noderef] __rcu * kernel/sched/topology.c:1758:21: sparse: int * kernel/sched/topology.c:1884:9: sparse: sparse: incompatible types in comparison expression (different address spaces): kernel/sched/topology.c:1884:9: sparse: int [noderef] __rcu * kernel/sched/topology.c:1884:9: sparse: int * kernel/sched/topology.c:1939:9: sparse: sparse: incompatible types in comparison expression (different address spaces): kernel/sched/topology.c:1939:9: sparse: struct cpumask **[noderef] __rcu * kernel/sched/topology.c:1939:9: sparse: struct cpumask *** kernel/sched/topology.c:1997:9: sparse: sparse: incompatible types in comparison expression (different address spaces): kernel/sched/topology.c:1997:9: sparse: int [noderef] __rcu * kernel/sched/topology.c:1997:9: sparse: int * kernel/sched/topology.c:1999:9: sparse: sparse: incompatible types in comparison expression (different address spaces): kernel/sched/topology.c:1999:9: sparse: struct cpumask **[noderef] __rcu * kernel/sched/topology.c:1999:9: sparse: struct cpumask *** kernel/sched/topology.c:2083:17: sparse: sparse: incompatible types in comparison expression (different address spaces): kernel/sched/topology.c:2083:17: sparse: struct cpumask **[noderef] __rcu * kernel/sched/topology.c:2083:17: sparse: struct cpumask *** kernel/sched/topology.c:2150:19: sparse: sparse: incompatible types in comparison expression (different address spaces): kernel/sched/topology.c:2150:19: sparse: struct cpumask **[noderef] __rcu * kernel/sched/topology.c:2150:19: sparse: struct cpumask *** kernel/sched/topology.c:2190:17: sparse: sparse: incompatible types in comparison expression (different address spaces): kernel/sched/topology.c:2190:17: sparse: struct cpumask **[noderef] __rcu * kernel/sched/topology.c:2190:17: sparse: struct cpumask *** kernel/sched/topology.c:2386:31: sparse: sparse: incorrect type in assignment (different address spaces) @@ expected struct sched_domain [noderef] __rcu *parent @@ got struct sched_domain *sd @@ kernel/sched/topology.c:2386:31: sparse: expected struct sched_domain [noderef] __rcu *parent kernel/sched/topology.c:2386:31: sparse: got struct sched_domain *sd kernel/sched/topology.c:2489:57: sparse: sparse: incorrect type in assignment (different address spaces) @@ expected struct sched_domain *[assigned] sd @@ got struct sched_domain [noderef] __rcu *parent @@ kernel/sched/topology.c:2489:57: sparse: expected struct sched_domain *[assigned] sd kernel/sched/topology.c:2489:57: sparse: got struct sched_domain [noderef] __rcu *parent kernel/sched/topology.c:2510:56: sparse: sparse: incorrect type in initializer (different address spaces) @@ expected struct sched_domain *child @@ got struct sched_domain [noderef] __rcu *child @@ kernel/sched/topology.c:2510:56: sparse: expected struct sched_domain *child kernel/sched/topology.c:2510:56: sparse: got struct sched_domain [noderef] __rcu *child kernel/sched/topology.c:2509:57: sparse: sparse: incorrect type in assignment (different address spaces) @@ expected struct sched_domain *[assigned] sd @@ got struct sched_domain [noderef] __rcu *parent @@ kernel/sched/topology.c:2509:57: sparse: expected struct sched_domain *[assigned] sd kernel/sched/topology.c:2509:57: sparse: got struct sched_domain [noderef] __rcu *parent kernel/sched/topology.c:2564:57: sparse: sparse: incorrect type in assignment (different address spaces) @@ expected struct sched_domain *[assigned] sd @@ got struct sched_domain [noderef] __rcu *parent @@ kernel/sched/topology.c:2564:57: sparse: expected struct sched_domain *[assigned] sd kernel/sched/topology.c:2564:57: sparse: got struct sched_domain [noderef] __rcu *parent kernel/sched/build_utility.c: note: in included file: kernel/sched/build_utility.c: note: in included file: kernel/sched/sched.h:1853:9: sparse: sparse: incorrect type in assignment (different address spaces) @@ expected struct sched_domain *[assigned] sd @@ got struct sched_domain [noderef] __rcu *parent @@ kernel/sched/sched.h:1853:9: sparse: expected struct sched_domain *[assigned] sd vim +2310 kernel/sched/topology.c 2304 2305 static int sd_llc_alloc(struct sched_domain *sd) 2306 { 2307 struct sched_domain_shared *sds = sd->shared; 2308 struct cpumask *span = sched_domain_span(sd); 2309 int nid = cpu_to_node(cpumask_first(span)); > 2310 int flags = __GFP_ZERO | GFP_KERNEL; 2311 struct sparsemask *mask; 2312 2313 /* 2314 * Allocate the bitmap if not already allocated. This is called for 2315 * every CPU in the LLC but only allocates once per sd_llc_shared. 2316 */ 2317 if (!sds->cfs_overload_cpus) { > 2318 mask = sparsemask_alloc_node(nr_cpu_ids, 3, flags, nid); 2319 if (!mask) 2320 return 1; 2321 sds->cfs_overload_cpus = mask; 2322 } 2323 2324 return 0; 2325 } 2326 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki

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