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X-OriginatorOrg: intel.com tree: https://android.googlesource.com/kernel/common android17-6.18-kminext head: e90350ec69a7f156c6eda15a13e6671cd731749d commit: c5c86c524cdc66dfa5514855826d380b85ce7abd [0/18] FROMLIST: sched: Rework pick_next_task() and prev_balance() to avoid stale prev references config: x86_64-randconfig-122-20260822 (https://download.01.org/0day-ci/archive/20260822/202608221518.UeEgsvqJ-lkp@intel.com/config) compiler: gcc-14 (Debian 14.2.0-19) 14.2.0 sparse: v0.6.5-rc1 reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20260822/202608221518.UeEgsvqJ-lkp@intel.com/reproduce) 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 | Closes: https://lore.kernel.org/oe-kbuild-all/202608221518.UeEgsvqJ-lkp@intel.com/ sparse warnings: (new ones prefixed by >>) kernel/sched/fair.c:1213:49: sparse: sparse: incorrect type in initializer (different address spaces) @@ expected struct task_struct *running @@ got struct task_struct [noderef] __rcu *curr @@ kernel/sched/fair.c:1213:49: sparse: expected struct task_struct *running kernel/sched/fair.c:1213:49: sparse: got struct task_struct [noderef] __rcu *curr kernel/sched/fair.c:1247:33: sparse: sparse: incorrect type in argument 2 (different address spaces) @@ expected struct sched_entity *se @@ got struct sched_entity [noderef] __rcu * @@ kernel/sched/fair.c:1247:33: sparse: expected struct sched_entity *se kernel/sched/fair.c:1247:33: sparse: got struct sched_entity [noderef] __rcu * kernel/sched/fair.c:1305:34: 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:1305:34: sparse: expected struct sched_entity const *se kernel/sched/fair.c:1305:34: sparse: got struct sched_entity [noderef] __rcu * kernel/sched/fair.c:13025:9: 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:13025:9: sparse: expected struct sched_domain *[assigned] sd kernel/sched/fair.c:13025:9: sparse: got struct sched_domain [noderef] __rcu *parent kernel/sched/fair.c:7092:58: sparse: sparse: incorrect type in argument 2 (different address spaces) @@ expected struct task_struct *p @@ got struct task_struct [noderef] __rcu *curr @@ kernel/sched/fair.c:7092:58: sparse: expected struct task_struct *p kernel/sched/fair.c:7092:58: sparse: got struct task_struct [noderef] __rcu *curr kernel/sched/fair.c:8494:20: 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:8494:20: sparse: expected struct sched_domain *[assigned] sd kernel/sched/fair.c:8494:20: sparse: got struct sched_domain [noderef] __rcu *parent kernel/sched/fair.c:8707:9: 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:8707:9: sparse: expected struct sched_domain *[assigned] tmp kernel/sched/fair.c:8707:9: sparse: got struct sched_domain [noderef] __rcu *parent kernel/sched/fair.c:8849:39: sparse: sparse: incorrect type in initializer (different address spaces) @@ expected struct task_struct *donor @@ got struct task_struct [noderef] __rcu *donor @@ kernel/sched/fair.c:8849:39: sparse: expected struct task_struct *donor kernel/sched/fair.c:8849:39: sparse: got struct task_struct [noderef] __rcu *donor kernel/sched/fair.c:8883:37: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected struct task_struct *tsk @@ got struct task_struct [noderef] __rcu *curr @@ kernel/sched/fair.c:8883:37: sparse: expected struct task_struct *tsk kernel/sched/fair.c:8883:37: sparse: got struct task_struct [noderef] __rcu *curr >> kernel/sched/fair.c:8997:14: sparse: sparse: incorrect type in assignment (different address spaces) @@ expected struct task_struct *prev @@ got struct task_struct [noderef] __rcu *donor @@ kernel/sched/fair.c:8997:14: sparse: expected struct task_struct *prev kernel/sched/fair.c:8997:14: sparse: got struct task_struct [noderef] __rcu *donor kernel/sched/fair.c:9117:38: sparse: sparse: incorrect type in initializer (different address spaces) @@ expected struct task_struct *curr @@ got struct task_struct [noderef] __rcu *donor @@ kernel/sched/fair.c:9117:38: sparse: expected struct task_struct *curr kernel/sched/fair.c:9117:38: sparse: got struct task_struct [noderef] __rcu *donor kernel/sched/fair.c:10176:40: 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:10176:40: sparse: expected struct sched_domain *child kernel/sched/fair.c:10176:40: sparse: got struct sched_domain [noderef] __rcu *child kernel/sched/fair.c:10804:22: sparse: sparse: incompatible types in comparison expression (different address spaces): kernel/sched/fair.c:10804:22: sparse: struct task_struct [noderef] __rcu * kernel/sched/fair.c:10804:22: sparse: struct task_struct * kernel/sched/fair.c:12257:9: 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:12257:9: sparse: expected struct sched_domain *[assigned] sd kernel/sched/fair.c:12257:9: sparse: got struct sched_domain [noderef] __rcu *parent kernel/sched/fair.c:11906:44: 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:11906:44: sparse: expected struct sched_domain *sd_parent kernel/sched/fair.c:11906:44: sparse: got struct sched_domain [noderef] __rcu *parent kernel/sched/fair.c:12371:9: 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:12371:9: sparse: expected struct sched_domain *[assigned] sd kernel/sched/fair.c:12371:9: sparse: got struct sched_domain [noderef] __rcu *parent kernel/sched/fair.c:6796:35: sparse: sparse: marked inline, but without a definition kernel/sched/fair.c: note: in included file: kernel/sched/sched.h:2532:9: sparse: sparse: incompatible types in comparison expression (different address spaces): kernel/sched/sched.h:2532:9: sparse: struct task_struct [noderef] __rcu * kernel/sched/sched.h:2532:9: sparse: struct task_struct * kernel/sched/sched.h:2321:26: sparse: sparse: incompatible types in comparison expression (different address spaces): kernel/sched/sched.h:2321:26: sparse: struct task_struct [noderef] __rcu * kernel/sched/sched.h:2321:26: sparse: struct task_struct * kernel/sched/sched.h:2310:25: sparse: sparse: incompatible types in comparison expression (different address spaces): kernel/sched/sched.h:2310:25: sparse: struct task_struct [noderef] __rcu * kernel/sched/sched.h:2310:25: sparse: struct task_struct * kernel/sched/sched.h:2321:26: sparse: sparse: incompatible types in comparison expression (different address spaces): kernel/sched/sched.h:2321:26: sparse: struct task_struct [noderef] __rcu * kernel/sched/sched.h:2321:26: sparse: struct task_struct * kernel/sched/sched.h:2321:26: sparse: sparse: incompatible types in comparison expression (different address spaces): kernel/sched/sched.h:2321:26: sparse: struct task_struct [noderef] __rcu * kernel/sched/sched.h:2321:26: sparse: struct task_struct * kernel/sched/sched.h:2321:26: sparse: sparse: incompatible types in comparison expression (different address spaces): kernel/sched/sched.h:2321:26: sparse: struct task_struct [noderef] __rcu * kernel/sched/sched.h:2321:26: sparse: struct task_struct * vim +8997 kernel/sched/fair.c 8984 8985 struct task_struct * 8986 pick_next_task_fair(struct rq *rq, struct rq_flags *rf) 8987 { 8988 struct sched_entity *se; 8989 struct task_struct *p, *prev; 8990 int new_tasks; 8991 8992 again: 8993 /* 8994 * Re-read rq->donor at the top as it may have 8995 * changed across a rq lock drop 8996 */ > 8997 prev = rq->donor; 8998 p = pick_task_fair(rq); 8999 trace_android_rvh_replace_next_task_fair(rq, &p, prev); 9000 9001 if (!p) 9002 goto idle; 9003 se = &p->se; 9004 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki