kernel/sched/fair.c:2004:38: sparse: sparse: incorrect type in initializer (different address spaces)

kernel test robot <[email protected]>
Newsgroups dev.linux.lists.oe-kbuild-all,org.kernel.vger.linux-kernel
Message-ID <[email protected]> 
tree:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head:   cb8a75eec0877810b50aa1c5a833f929525cd2ee
commit: 85570f10a4c61372c1d437365b9d8dbad512ec6f sched/eevdf: Move to a single runqueue
date:   7 weeks ago
config: microblaze-randconfig-r112-20260820 (https://download.01.org/0day-ci/archive/20260820/[email protected]/config)
compiler: microblaze-linux-gcc (GCC) 11.5.0
sparse: v0.6.5-rc1
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20260820/[email protected]/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
| Fixes: 85570f10a4c6 ("sched/eevdf: Move to a single runqueue")
| Reported-by: kernel test robot <[email protected]>
| Closes: https://lore.kernel.org/oe-kbuild-all/[email protected]/

sparse warnings: (new ones prefixed by >>)
   kernel/sched/fair.c:1335:49: 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:1335:49: sparse:     expected struct task_struct *running
   kernel/sched/fair.c:1335:49: sparse:     got struct task_struct [noderef] __rcu *curr
   kernel/sched/fair.c:1945:33: 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:1945:33: sparse:     expected struct sched_entity *se
   kernel/sched/fair.c:1945:33: sparse:     got struct sched_entity [noderef] __rcu *
>> kernel/sched/fair.c:2004:38: sparse: sparse: incorrect type in initializer (different address spaces) @@     expected struct sched_entity *se @@     got struct sched_entity [noderef] __rcu * @@
   kernel/sched/fair.c:2004:38: sparse:     expected struct sched_entity *se
   kernel/sched/fair.c:2004:38: sparse:     got struct sched_entity [noderef] __rcu *
   kernel/sched/fair.c:14433:9: 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:14433:9: sparse:     expected struct sched_domain *[assigned] sd
   kernel/sched/fair.c:14433:9: sparse:     got struct sched_domain [noderef] __rcu *parent
   kernel/sched/fair.c:7744:39: 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:7744:39: sparse:     expected struct task_struct *donor
   kernel/sched/fair.c:7744:39: sparse:     got struct task_struct [noderef] __rcu *donor
   kernel/sched/fair.c:9440:20: 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:9440:20: sparse:     expected struct sched_domain *[assigned] sd
   kernel/sched/fair.c:9440:20: sparse:     got struct sched_domain [noderef] __rcu *parent
   kernel/sched/fair.c:9635:9: 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:9635:9: sparse:     expected struct sched_domain *[assigned] tmp
   kernel/sched/fair.c:9635:9: sparse:     got struct sched_domain [noderef] __rcu *parent
   kernel/sched/fair.c:9809:39: 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:9809:39: sparse:     expected struct task_struct *donor
   kernel/sched/fair.c:9809:39: sparse:     got struct task_struct [noderef] __rcu *donor
   kernel/sched/fair.c:9843:37: 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:9843:37: sparse:     expected struct task_struct *tsk
   kernel/sched/fair.c:9843:37: sparse:     got struct task_struct [noderef] __rcu *curr
   kernel/sched/fair.c:10045:38: 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:10045:38: sparse:     expected struct task_struct *curr
   kernel/sched/fair.c:10045:38: sparse:     got struct task_struct [noderef] __rcu *donor
   kernel/sched/fair.c:11385:40: 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:11385:40: sparse:     expected struct sched_domain *child
   kernel/sched/fair.c:11385:40: sparse:     got struct sched_domain [noderef] __rcu *child
   kernel/sched/fair.c:12151:22: sparse: sparse: incompatible types in comparison expression (different address spaces):
   kernel/sched/fair.c:12151:22: sparse:    struct task_struct [noderef] __rcu *
   kernel/sched/fair.c:12151:22: sparse:    struct task_struct *
   kernel/sched/fair.c:13669:9: 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:13669:9: sparse:     expected struct sched_domain *[assigned] sd
   kernel/sched/fair.c:13669:9: sparse:     got struct sched_domain [noderef] __rcu *parent
   kernel/sched/fair.c:13300:44: 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:13300:44: sparse:     expected struct sched_domain *sd_parent
   kernel/sched/fair.c:13300:44: sparse:     got struct sched_domain [noderef] __rcu *parent
   kernel/sched/fair.c:13805:9: 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:13805:9: sparse:     expected struct sched_domain *[assigned] sd
   kernel/sched/fair.c:13805:9: sparse:     got struct sched_domain [noderef] __rcu *parent
   kernel/sched/fair.c:7644:35: sparse: sparse: marked inline, but without a definition
   kernel/sched/fair.c: note: in included file:
   kernel/sched/sched.h:2465:26: sparse: sparse: incompatible types in comparison expression (different address spaces):
   kernel/sched/sched.h:2465:26: sparse:    struct task_struct [noderef] __rcu *
   kernel/sched/sched.h:2465:26: sparse:    struct task_struct *
   kernel/sched/sched.h:1426:25: sparse: sparse: incompatible types in comparison expression (different address spaces):
   kernel/sched/sched.h:1426:25: sparse:    struct task_struct [noderef] __rcu *
   kernel/sched/sched.h:1426:25: sparse:    struct task_struct *
   kernel/sched/sched.h:1426:25: sparse: sparse: incompatible types in comparison expression (different address spaces):
   kernel/sched/sched.h:1426:25: sparse:    struct task_struct [noderef] __rcu *
   kernel/sched/sched.h:1426:25: sparse:    struct task_struct *
   kernel/sched/sched.h:1426:25: sparse: sparse: incompatible types in comparison expression (different address spaces):
   kernel/sched/sched.h:1426:25: sparse:    struct task_struct [noderef] __rcu *
   kernel/sched/sched.h:1426:25: sparse:    struct task_struct *
   kernel/sched/sched.h:1426:25: sparse: sparse: incompatible types in comparison expression (different address spaces):
   kernel/sched/sched.h:1426:25: sparse:    struct task_struct [noderef] __rcu *
   kernel/sched/sched.h:1426:25: sparse:    struct task_struct *
   kernel/sched/sched.h:1426:25: sparse: sparse: incompatible types in comparison expression (different address spaces):
   kernel/sched/sched.h:1426:25: sparse:    struct task_struct [noderef] __rcu *
   kernel/sched/sched.h:1426:25: sparse:    struct task_struct *
   kernel/sched/sched.h:1426:25: sparse: sparse: incompatible types in comparison expression (different address spaces):
   kernel/sched/sched.h:1426:25: sparse:    struct task_struct [noderef] __rcu *
   kernel/sched/sched.h:1426:25: sparse:    struct task_struct *
   kernel/sched/sched.h:1426:25: sparse: sparse: incompatible types in comparison expression (different address spaces):
   kernel/sched/sched.h:1426:25: sparse:    struct task_struct [noderef] __rcu *
   kernel/sched/sched.h:1426:25: sparse:    struct task_struct *
   kernel/sched/sched.h:2465:26: sparse: sparse: incompatible types in comparison expression (different address spaces):
   kernel/sched/sched.h:2465:26: sparse:    struct task_struct [noderef] __rcu *
   kernel/sched/sched.h:2465:26: sparse:    struct task_struct *
   kernel/sched/sched.h:2454:25: sparse: sparse: incompatible types in comparison expression (different address spaces):
   kernel/sched/sched.h:2454:25: sparse:    struct task_struct [noderef] __rcu *
   kernel/sched/sched.h:2454:25: sparse:    struct task_struct *
   kernel/sched/sched.h:2465:26: sparse: sparse: incompatible types in comparison expression (different address spaces):
   kernel/sched/sched.h:2465:26: sparse:    struct task_struct [noderef] __rcu *
   kernel/sched/sched.h:2465:26: sparse:    struct task_struct *
   kernel/sched/sched.h:2465:26: sparse: sparse: incompatible types in comparison expression (different address spaces):
   kernel/sched/sched.h:2465:26: sparse:    struct task_struct [noderef] __rcu *
   kernel/sched/sched.h:2465:26: sparse:    struct task_struct *
   kernel/sched/sched.h:2465:26: sparse: sparse: incompatible types in comparison expression (different address spaces):
   kernel/sched/sched.h:2465:26: sparse:    struct task_struct [noderef] __rcu *
   kernel/sched/sched.h:2465:26: sparse:    struct task_struct *

vim +2004 kernel/sched/fair.c

  2001	
  2002	static void update_curr_fair(struct rq *rq)
  2003	{
> 2004		struct sched_entity *se = &rq->donor->se;
  2005	
  2006		for_each_sched_entity(se)
  2007			update_curr(cfs_rq_of(se));
  2008	}
  2009	

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