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Message-ID: <202512111625.wn0o2Qnb-lkp@intel.com>
Date: Thu, 11 Dec 2025 16:07:58 +0800
From: kernel test robot <lkp@...el.com>
To: Thomas Gleixner <tglx@...utronix.de>
Cc: oe-kbuild-all@...ts.linux.dev, linux-kernel@...r.kernel.org,
"Peter Zijlstra (Intel)" <peterz@...radead.org>,
Mathieu Desnoyers <mathieu.desnoyers@...icios.com>
Subject: kernel/sched/core.c:10574:58: sparse: sparse: incorrect type in
argument 1 (different address spaces)
tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head: d358e5254674b70f34c847715ca509e46eb81e6f
commit: fbd0e71dc370af73f6b316e4de9eed273dd90340 sched/mmcid: Provide CID ownership mode fixup functions
date: 2 weeks ago
config: x86_64-randconfig-121-20251211 (https://download.01.org/0day-ci/archive/20251211/202512111625.wn0o2Qnb-lkp@intel.com/config)
compiler: gcc-14 (Debian 14.2.0-19) 14.2.0
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20251211/202512111625.wn0o2Qnb-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 <lkp@...el.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202512111625.wn0o2Qnb-lkp@intel.com/
sparse warnings: (new ones prefixed by >>)
kernel/sched/core.c:804:33: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected struct task_struct *task @@ got struct task_struct [noderef] __rcu *curr @@
kernel/sched/core.c:804:33: sparse: expected struct task_struct *task
kernel/sched/core.c:804:33: sparse: got struct task_struct [noderef] __rcu *curr
kernel/sched/core.c:1100:38: sparse: sparse: incorrect type in initializer (different address spaces) @@ expected struct task_struct *curr @@ got struct task_struct [noderef] __rcu *curr @@
kernel/sched/core.c:1100:38: sparse: expected struct task_struct *curr
kernel/sched/core.c:1100:38: sparse: got struct task_struct [noderef] __rcu *curr
kernel/sched/core.c:2203:39: sparse: sparse: incorrect type in initializer (different address spaces) @@ expected struct task_struct *donor @@ got struct task_struct [noderef] __rcu *donor @@
kernel/sched/core.c:2203:39: sparse: expected struct task_struct *donor
kernel/sched/core.c:2203:39: sparse: got struct task_struct [noderef] __rcu *donor
kernel/sched/core.c:2214:65: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected struct task_struct *tsk @@ got struct task_struct [noderef] __rcu *curr @@
kernel/sched/core.c:2214:65: sparse: expected struct task_struct *tsk
kernel/sched/core.c:2214:65: sparse: got struct task_struct [noderef] __rcu *curr
kernel/sched/core.c:3656:17: sparse: sparse: incorrect type in assignment (different address spaces) @@ expected struct sched_domain *[assigned] sd @@ got struct sched_domain [noderef] __rcu *parent @@
kernel/sched/core.c:3656:17: sparse: expected struct sched_domain *[assigned] sd
kernel/sched/core.c:3656:17: sparse: got struct sched_domain [noderef] __rcu *parent
kernel/sched/core.c:3861:36: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected struct task_struct const *p @@ got struct task_struct [noderef] __rcu *curr @@
kernel/sched/core.c:3861:36: sparse: expected struct task_struct const *p
kernel/sched/core.c:3861:36: sparse: got struct task_struct [noderef] __rcu *curr
kernel/sched/core.c:8167:43: sparse: sparse: incorrect type in initializer (different address spaces) @@ expected struct task_struct *push_task @@ got struct task_struct [noderef] __rcu *curr @@
kernel/sched/core.c:8167:43: sparse: expected struct task_struct *push_task
kernel/sched/core.c:8167:43: sparse: got struct task_struct [noderef] __rcu *curr
kernel/sched/core.c:5585:15: sparse: sparse: incorrect type in assignment (different address spaces) @@ expected struct task_struct *donor @@ got struct task_struct [noderef] __rcu *donor @@
kernel/sched/core.c:5585:15: sparse: expected struct task_struct *donor
kernel/sched/core.c:5585:15: sparse: got struct task_struct [noderef] __rcu *donor
kernel/sched/core.c:6799:14: sparse: sparse: incorrect type in assignment (different address spaces) @@ expected struct task_struct *prev @@ got struct task_struct [noderef] __rcu *curr @@
kernel/sched/core.c:6799:14: sparse: expected struct task_struct *prev
kernel/sched/core.c:6799:14: sparse: got struct task_struct [noderef] __rcu *curr
kernel/sched/core.c:6865:37: sparse: sparse: incorrect type in argument 2 (different address spaces) @@ expected struct task_struct *prev @@ got struct task_struct [noderef] __rcu *donor @@
kernel/sched/core.c:6865:37: sparse: expected struct task_struct *prev
kernel/sched/core.c:6865:37: sparse: got struct task_struct [noderef] __rcu *donor
kernel/sched/core.c:7372:17: sparse: sparse: incompatible types in comparison expression (different address spaces):
kernel/sched/core.c:7372:17: sparse: struct task_struct *
kernel/sched/core.c:7372:17: sparse: struct task_struct [noderef] __rcu *
kernel/sched/core.c:10322:25: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected struct task_struct *p @@ got struct task_struct [noderef] __rcu *curr @@
kernel/sched/core.c:10322:25: sparse: expected struct task_struct *p
kernel/sched/core.c:10322:25: sparse: got struct task_struct [noderef] __rcu *curr
>> kernel/sched/core.c:10574:58: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected struct task_struct *t @@ got struct task_struct [noderef] __rcu *curr @@
kernel/sched/core.c:10574:58: sparse: expected struct task_struct *t
kernel/sched/core.c:10574:58: sparse: got struct task_struct [noderef] __rcu *curr
kernel/sched/core.c:10610:38: sparse: sparse: incompatible types in comparison expression (different address spaces):
kernel/sched/core.c:10610:38: sparse: struct task_struct [noderef] __rcu *
kernel/sched/core.c:10610:38: sparse: struct task_struct *
kernel/sched/core.c:631:6: sparse: sparse: context imbalance in 'raw_spin_rq_lock_nested' - wrong count at exit
kernel/sched/core.c:664:23: sparse: sparse: context imbalance in 'raw_spin_rq_trylock' - wrong count at exit
kernel/sched/core.c:680:6: sparse: sparse: context imbalance in 'raw_spin_rq_unlock' - unexpected unlock
kernel/sched/core.c: note: in included file:
kernel/sched/sched.h:1799:9: sparse: sparse: context imbalance in '__task_rq_lock' - wrong count at exit
kernel/sched/sched.h:1799:9: sparse: sparse: context imbalance in 'task_rq_lock' - wrong count at exit
kernel/sched/core.c: note: in included file:
kernel/sched/pelt.h:102:13: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected struct task_struct const *p @@ got struct task_struct [noderef] __rcu *curr @@
kernel/sched/pelt.h:102:13: sparse: expected struct task_struct const *p
kernel/sched/pelt.h:102:13: sparse: got struct task_struct [noderef] __rcu *curr
kernel/sched/core.c:2284:35: sparse: sparse: context imbalance in 'wait_task_inactive' - different lock contexts for basic block
kernel/sched/core.c:2678:6: sparse: sparse: context imbalance in 'set_cpus_allowed_common' - different lock contexts for basic block
kernel/sched/core.c: note: in included file:
kernel/sched/sched.h:2288:26: sparse: sparse: incompatible types in comparison expression (different address spaces):
kernel/sched/sched.h:2288:26: sparse: struct task_struct [noderef] __rcu *
kernel/sched/sched.h:2288:26: sparse: struct task_struct *
kernel/sched/sched.h:2474:9: sparse: sparse: incompatible types in comparison expression (different address spaces):
kernel/sched/sched.h:2474:9: sparse: struct task_struct [noderef] __rcu *
kernel/sched/sched.h:2474:9: sparse: struct task_struct *
kernel/sched/sched.h:2288:26: sparse: sparse: incompatible types in comparison expression (different address spaces):
kernel/sched/sched.h:2288:26: sparse: struct task_struct [noderef] __rcu *
kernel/sched/sched.h:2288:26: sparse: struct task_struct *
kernel/sched/sched.h:2277:25: sparse: sparse: incompatible types in comparison expression (different address spaces):
kernel/sched/sched.h:2277:25: sparse: struct task_struct [noderef] __rcu *
kernel/sched/sched.h:2277:25: sparse: struct task_struct *
kernel/sched/core.c:2167:38: sparse: sparse: incompatible types in comparison expression (different address spaces):
kernel/sched/core.c:2167:38: sparse: struct task_struct [noderef] __rcu *
kernel/sched/core.c:2167:38: sparse: struct task_struct const *
kernel/sched/sched.h:2288:26: sparse: sparse: incompatible types in comparison expression (different address spaces):
kernel/sched/sched.h:2288:26: sparse: struct task_struct [noderef] __rcu *
kernel/sched/sched.h:2288:26: sparse: struct task_struct *
kernel/sched/sched.h:2497:9: sparse: sparse: incompatible types in comparison expression (different address spaces):
kernel/sched/sched.h:2497:9: sparse: struct task_struct [noderef] __rcu *
kernel/sched/sched.h:2497:9: sparse: struct task_struct *
kernel/sched/sched.h:2497:9: sparse: sparse: incompatible types in comparison expression (different address spaces):
kernel/sched/sched.h:2497:9: sparse: struct task_struct [noderef] __rcu *
kernel/sched/sched.h:2497:9: sparse: struct task_struct *
kernel/sched/sched.h:2288:26: sparse: sparse: incompatible types in comparison expression (different address spaces):
kernel/sched/sched.h:2288:26: sparse: struct task_struct [noderef] __rcu *
kernel/sched/sched.h:2288:26: sparse: struct task_struct *
kernel/sched/sched.h:2288:26: sparse: sparse: incompatible types in comparison expression (different address spaces):
kernel/sched/sched.h:2288:26: sparse: struct task_struct [noderef] __rcu *
kernel/sched/sched.h:2288:26: sparse: struct task_struct *
kernel/sched/sched.h:2288:26: sparse: sparse: incompatible types in comparison expression (different address spaces):
kernel/sched/sched.h:2288:26: sparse: struct task_struct [noderef] __rcu *
kernel/sched/sched.h:2288:26: sparse: struct task_struct *
kernel/sched/sched.h:2474:9: sparse: sparse: incompatible types in comparison expression (different address spaces):
kernel/sched/sched.h:2474:9: sparse: struct task_struct [noderef] __rcu *
kernel/sched/sched.h:2474:9: sparse: struct task_struct *
kernel/sched/sched.h:2288:26: sparse: sparse: incompatible types in comparison expression (different address spaces):
kernel/sched/sched.h:2288:26: sparse: struct task_struct [noderef] __rcu *
kernel/sched/sched.h:2288:26: sparse: struct task_struct *
kernel/sched/sched.h:2474:9: sparse: sparse: incompatible types in comparison expression (different address spaces):
kernel/sched/sched.h:2474:9: sparse: struct task_struct [noderef] __rcu *
kernel/sched/sched.h:2474:9: sparse: struct task_struct *
vim +10574 kernel/sched/core.c
10555
10556 static void __maybe_unused mm_cid_fixup_cpus_to_tasks(struct mm_struct *mm)
10557 {
10558 unsigned int cpu;
10559
10560 /* Walk the CPUs and fixup all stale CIDs */
10561 for_each_possible_cpu(cpu) {
10562 struct mm_cid_pcpu *pcp = per_cpu_ptr(mm->mm_cid.pcpu, cpu);
10563 struct rq *rq = cpu_rq(cpu);
10564
10565 /* Remote access to mm::mm_cid::pcpu requires rq_lock */
10566 guard(rq_lock_irq)(rq);
10567 /* Is the CID still owned by the CPU? */
10568 if (cid_on_cpu(pcp->cid)) {
10569 /*
10570 * If rq->curr has @mm, transfer it with the
10571 * transition bit set. Otherwise drop it.
10572 */
10573 if (rq->curr->mm == mm && rq->curr->mm_cid.active)
10574 mm_cid_transit_to_task(rq->curr, pcp);
10575 else
10576 mm_drop_cid_on_cpu(mm, pcp);
10577
10578 } else if (rq->curr->mm == mm && rq->curr->mm_cid.active) {
10579 unsigned int cid = rq->curr->mm_cid.cid;
10580
10581 /* Ensure it has the transition bit set */
10582 if (!cid_in_transit(cid)) {
10583 cid = cid_to_transit_cid(cid);
10584 rq->curr->mm_cid.cid = cid;
10585 pcp->cid = cid;
10586 }
10587 }
10588 }
10589 /* Clear the transition bit */
10590 WRITE_ONCE(mm->mm_cid.transit, 0);
10591 }
10592
--
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki
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