From: kernel test robot <lkp@intel.com>
To: Thomas Gleixner <tglx@linutronix.de>
Cc: oe-kbuild-all@lists.linux.dev, linux-kernel@vger.kernel.org,
"Peter Zijlstra (Intel)" <peterz@infradead.org>,
Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Subject: kernel/sched/core.c:10574:58: sparse: sparse: incorrect type in argument 1 (different address spaces)
Date: Mon, 01 Jun 2026 21:55:10 +0800 [thread overview]
Message-ID: <202606012159.elx68pnX-lkp@intel.com> (raw)
tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head: e43ffb69e0438cddd72aaa30898b4dc446f664f8
commit: fbd0e71dc370af73f6b316e4de9eed273dd90340 sched/mmcid: Provide CID ownership mode fixup functions
date: 6 months ago
config: loongarch-randconfig-r133-20260601 (https://download.01.org/0day-ci/archive/20260601/202606012159.elx68pnX-lkp@intel.com/config)
compiler: loongarch64-linux-gcc (GCC) 13.4.0
sparse: v0.6.5-rc1
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20260601/202606012159.elx68pnX-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
| Fixes: fbd0e71dc370 ("sched/mmcid: Provide CID ownership mode fixup functions")
| Reported-by: kernel test robot <lkp@intel.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202606012159.elx68pnX-lkp@intel.com/
sparse warnings: (new ones prefixed by >>)
kernel/sched/core.c:880:49: sparse: sparse: incorrect type in argument 2 (different address spaces) @@ expected struct task_struct *p @@ got struct task_struct [noderef] __rcu *curr @@
kernel/sched/core.c:880:49: sparse: expected struct task_struct *p
kernel/sched/core.c:880:49: 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:1206:9: sparse: sparse: incorrect type in assignment (different address spaces) @@ expected struct sched_domain *[assigned] sd @@ got struct sched_domain [noderef] __rcu *parent @@
kernel/sched/core.c:1206:9: sparse: expected struct sched_domain *[assigned] sd
kernel/sched/core.c:1206:9: sparse: got struct sched_domain [noderef] __rcu *parent
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:656:6: 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:880:11: sparse: sparse: dereference of noderef expression
kernel/sched/core.c:1579:13: sparse: sparse: context imbalance in 'uclamp_update_util_min_rt_default' - wrong count at exit
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/core.c: note: in included file (through arch/loongarch/include/asm/switch_to.h):
arch/loongarch/include/asm/fpu.h:80:17: sparse: sparse: undefined identifier '__builtin_loongarch_csrrd_w'
arch/loongarch/include/asm/fpu.h:80:17: sparse: sparse: cast from unknown type
arch/loongarch/include/asm/fpu.h:89:17: sparse: sparse: undefined identifier '__builtin_loongarch_csrrd_w'
arch/loongarch/include/asm/fpu.h:89:17: sparse: sparse: cast from unknown type
kernel/sched/core.c: note: in included file (through arch/loongarch/include/asm/cpu-info.h, arch/loongarch/include/asm/processor.h, arch/loongarch/include/asm/thread_info.h, ...):
arch/loongarch/include/asm/loongarch.h:1358:1: sparse: sparse: undefined identifier '__builtin_loongarch_csrrd_w'
arch/loongarch/include/asm/loongarch.h:1358:1: sparse: sparse: cast from unknown type
arch/loongarch/include/asm/loongarch.h:1358:1: sparse: sparse: undefined identifier '__builtin_loongarch_csrwr_w'
arch/loongarch/include/asm/loongarch.h:1358:1: sparse: sparse: cast from unknown type
kernel/sched/core.c: note: in included file (through arch/loongarch/include/asm/switch_to.h):
arch/loongarch/include/asm/fpu.h:89:17: sparse: sparse: cast from unknown type
kernel/sched/core.c: note: in included file (through arch/loongarch/include/asm/cpu-info.h, arch/loongarch/include/asm/processor.h, arch/loongarch/include/asm/thread_info.h, ...):
arch/loongarch/include/asm/loongarch.h:1358:1: sparse: sparse: cast from unknown type
arch/loongarch/include/asm/loongarch.h:1358:1: sparse: sparse: cast from unknown type
kernel/sched/core.c: note: in included file (through arch/loongarch/include/asm/switch_to.h):
arch/loongarch/include/asm/fpu.h:226:17: sparse: sparse: undefined identifier '__builtin_loongarch_csrxchg_w'
arch/loongarch/include/asm/fpu.h:226:17: sparse: sparse: cast from unknown type
arch/loongarch/include/asm/fpu.h:274:17: sparse: sparse: undefined identifier '__builtin_loongarch_csrxchg_w'
arch/loongarch/include/asm/fpu.h:274:17: sparse: sparse: cast from unknown type
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: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
next reply other threads:[~2026-06-01 13:55 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-06-01 13:55 kernel test robot [this message]
-- strict thread matches above, loose matches on Subject: below --
2026-02-16 2:40 kernel/sched/core.c:10574:58: sparse: sparse: incorrect type in argument 1 (different address spaces) kernel test robot
2026-01-13 12:39 kernel test robot
2025-12-11 8:07 kernel test robot
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