Hi Xianglai,

First bad commit (maybe != root cause):

tree: https://gitee.com/openeuler/kernel.git OLK-6.6 head: 46064348cc445799cf9e8fd030323a0426fbb5e4 commit: 351aa968603500987e891b20cc97a677602ae7c2 [1613/1613] loongarch/kernel: Fix loongarch compilation error config: loongarch-randconfig-r111-20241210 (https://download.01.org/0day-ci/archive/20241218/202412180753.EAU66qxV-lkp@i...) compiler: loongarch64-linux-gcc (GCC) 14.2.0 reproduce: (https://download.01.org/0day-ci/archive/20241218/202412180753.EAU66qxV-lkp@i...)

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@intel.com | Closes: https://lore.kernel.org/oe-kbuild-all/202412180753.EAU66qxV-lkp@intel.com/

sparse warnings: (new ones prefixed by >>) kernel/sched/build_utility.c: note: in included file: kernel/sched/debug.c:468:17: sparse: sparse: incorrect type in assignment (different address spaces) @@ expected struct sched_domain *[assigned] sd @@ got struct sched_domain [noderef] __rcu *parent @@ kernel/sched/debug.c:468:17: sparse: expected struct sched_domain *[assigned] sd kernel/sched/debug.c:468:17: sparse: got struct sched_domain [noderef] __rcu *parent kernel/sched/debug.c:792:9: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected struct task_struct *tsk @@ got struct task_struct [noderef] __rcu *curr @@ kernel/sched/debug.c:792:9: sparse: expected struct task_struct *tsk kernel/sched/debug.c:792:9: sparse: got struct task_struct [noderef] __rcu *curr kernel/sched/debug.c:792:9: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected struct task_struct *tsk @@ got struct task_struct [noderef] __rcu *curr @@ kernel/sched/debug.c:792:9: sparse: expected struct task_struct *tsk kernel/sched/debug.c:792:9: sparse: got struct task_struct [noderef] __rcu *curr 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:2368:32: sparse: sparse: incorrect type in initializer (different base types) @@ expected int flags @@ got restricted gfp_t @@

kernel/sched/topology.c:2368:32: sparse: expected int flags kernel/sched/topology.c:2368:32: sparse: got restricted gfp_t

...

kernel/sched/topology.c:2376:61: sparse: sparse: incorrect type in argument 3 (different base types) @@ expected restricted gfp_t [usertype] flags @@ got int flags @@

kernel/sched/topology.c:2376:61: sparse: expected restricted gfp_t [usertype] flags kernel/sched/topology.c:2376:61: sparse: got int flags kernel/sched/topology.c:2404:58: 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:2404:58: sparse: expected struct sched_domain *[assigned] sd kernel/sched/topology.c:2404:58: sparse: got struct sched_domain [noderef] __rcu *parent kernel/sched/topology.c:123:56: 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:123:56: sparse: expected struct sched_domain *sd kernel/sched/topology.c:123:56: sparse: got struct sched_domain [noderef] __rcu *child kernel/sched/topology.c:142:60: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected struct sched_domain *sd @@ got struct sched_domain [noderef] __rcu *parent @@ kernel/sched/topology.c:142:60: sparse: expected struct sched_domain *sd kernel/sched/topology.c:142:60: sparse: got struct sched_domain [noderef] __rcu *parent kernel/sched/topology.c:165:20: 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:165:20: sparse: expected struct sched_domain *sd kernel/sched/topology.c:165:20: sparse: got struct sched_domain [noderef] __rcu *parent kernel/sched/topology.c:499:19: 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:499:19: sparse: expected struct perf_domain *pd kernel/sched/topology.c:499:19: sparse: got struct perf_domain [noderef] __rcu *pd kernel/sched/topology.c:663:49: 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:663:49: sparse: expected struct sched_domain *parent kernel/sched/topology.c:663:49: sparse: got struct sched_domain [noderef] __rcu *parent kernel/sched/topology.c:718:9: sparse: sparse: incompatible types in comparison expression (different address spaces): kernel/sched/topology.c:718:9: sparse: struct sparsemask [noderef] __rcu * kernel/sched/topology.c:718:9: sparse: struct sparsemask * kernel/sched/topology.c:758:50: 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:766:55: 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:779:29: 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:784:20: 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:805:13: 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:967:70: 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:996:59: 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:1042:57: 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:1044:25: 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:1052:55: 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:1054:25: 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:1124:62: 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:1228:40: 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:1649:43: 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:2445:31: 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:2549:57: 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:2570:56: 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:2569:57: 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:2624:57: sparse: sparse: incorrect type in assignment (different address spaces) @@ expected struct sched_domain *[assigned] sd @@ got struct sched_domain [noderef] __rcu *parent @@ kernel/sched/build_utility.c: note: in included file: kernel/sched/membarrier.c:206:9: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected void *ptr @@ got int [noderef] __percpu * @@ kernel/sched/membarrier.c:206:9: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected void *ptr @@ got int [noderef] __percpu * @@ kernel/sched/membarrier.c:206:9: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected void *ptr @@ got int [noderef] __percpu * @@ kernel/sched/membarrier.c:206:9: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected void *ptr @@ got int [noderef] __percpu * @@ kernel/sched/membarrier.c:230:9: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected void *ptr @@ got int [noderef] __percpu * @@ kernel/sched/membarrier.c:230:9: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected void *ptr @@ got int [noderef] __percpu * @@ kernel/sched/membarrier.c:230:9: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected void *ptr @@ got int [noderef] __percpu * @@ kernel/sched/membarrier.c:230:9: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected void *ptr @@ got int [noderef] __percpu * @@ kernel/sched/membarrier.c:433:17: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected void *ptr @@ got int [noderef] __percpu * @@ kernel/sched/membarrier.c:433:17: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected void *ptr @@ got int [noderef] __percpu * @@ kernel/sched/membarrier.c:433:17: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected void *ptr @@ got int [noderef] __percpu * @@ kernel/sched/membarrier.c:433:17: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected void *ptr @@ got int [noderef] __percpu * @@ kernel/sched/build_utility.c: note: in included file: kernel/sched/build_utility.c: note: in included file (through include/linux/mmzone.h, arch/loongarch/include/asm/pgtable.h, arch/loongarch/include/asm/uaccess.h, ...): include/linux/page-flags.h:245:46: sparse: sparse: self-comparison always evaluates to false kernel/sched/build_utility.c: note: in included file: kernel/sched/sched.h:2288:25: sparse: sparse: incompatible types in comparison expression (different address spaces): kernel/sched/sched.h:2288:25: sparse: struct task_struct [noderef] __rcu * kernel/sched/sched.h:2288:25: sparse: struct task_struct *

vim +2368 kernel/sched/topology.c

f2cb13609d5397 Ingo Molnar 2017-02-01 2361 e858b9ce14397a Cheng Jian 2024-01-02 2362 #ifdef CONFIG_SCHED_STEAL 476141f6c8e689 Steve Sistare 2024-01-02 2363 static int sd_llc_alloc(struct sched_domain *sd) 476141f6c8e689 Steve Sistare 2024-01-02 2364 { 0ccb3f810722de Steve Sistare 2024-01-02 2365 struct sched_domain_shared *sds = sd->shared; 0ccb3f810722de Steve Sistare 2024-01-02 2366 struct cpumask *span = sched_domain_span(sd); 0ccb3f810722de Steve Sistare 2024-01-02 2367 int nid = cpu_to_node(cpumask_first(span)); 0ccb3f810722de Steve Sistare 2024-01-02 @2368 int flags = __GFP_ZERO | GFP_KERNEL; 0ccb3f810722de Steve Sistare 2024-01-02 2369 struct sparsemask *mask; 0ccb3f810722de Steve Sistare 2024-01-02 2370 0ccb3f810722de Steve Sistare 2024-01-02 2371 /* 0ccb3f810722de Steve Sistare 2024-01-02 2372 * Allocate the bitmap if not already allocated. This is called for 0ccb3f810722de Steve Sistare 2024-01-02 2373 * every CPU in the LLC but only allocates once per sd_llc_shared. 0ccb3f810722de Steve Sistare 2024-01-02 2374 */ 0ccb3f810722de Steve Sistare 2024-01-02 2375 if (!sds->cfs_overload_cpus) { 0ccb3f810722de Steve Sistare 2024-01-02 @2376 mask = sparsemask_alloc_node(nr_cpu_ids, 3, flags, nid); 0ccb3f810722de Steve Sistare 2024-01-02 2377 if (!mask) 0ccb3f810722de Steve Sistare 2024-01-02 2378 return 1; 0ccb3f810722de Steve Sistare 2024-01-02 2379 sds->cfs_overload_cpus = mask; 0ccb3f810722de Steve Sistare 2024-01-02 2380 } 476141f6c8e689 Steve Sistare 2024-01-02 2381 476141f6c8e689 Steve Sistare 2024-01-02 2382 return 0; 476141f6c8e689 Steve Sistare 2024-01-02 2383 } 476141f6c8e689 Steve Sistare 2024-01-02 2384

:::::: The code at line 2368 was first introduced by commit :::::: 0ccb3f810722de634beed0dc6fe5c59d963b4c50 sched/topology: Provide cfs_overload_cpus bitmap

:::::: TO: Steve Sistare steve.sistare@oracle.com :::::: CC: Cheng Yu serein.chengyu@huawei.com