From: kernel test robot <lkp@intel.com>
To: Hui Su <sh_def@163.com>
Cc: oe-kbuild-all@lists.linux.dev, linux-kernel@vger.kernel.org,
Peter Zijlstra <peterz@infradead.org>
Subject: kernel/sched/core.c:5791:14: sparse: sparse: incorrect type in assignment (different address spaces)
Date: Thu, 17 Sep 2026 20:18:24 +0800 [thread overview]
Message-ID: <202609172041.ahqSILHp-lkp@intel.com> (raw)
tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head: 9b87fdc9af2fbfcdb5c24a64139685ef80f6573f
commit: f5741d2b34519d387edf6e9798fc7030c20a35f3 sched/core: Call wq_worker_tick() for the execution context
date: 7 days ago
config: x86_64-randconfig-1301-20260917 (https://download.01.org/0day-ci/archive/20260917/202609172041.ahqSILHp-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/20260917/202609172041.ahqSILHp-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: f5741d2b3451 ("sched/core: Call wq_worker_tick() for the execution context")
| Reported-by: kernel test robot <lkp@intel.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202609172041.ahqSILHp-lkp@intel.com/
sparse warnings: (new ones prefixed by >>)
kernel/sched/core.c:337:56: sparse: sparse: incompatible types in comparison expression (different address spaces):
kernel/sched/core.c:337:56: sparse: struct task_struct [noderef] __rcu *
kernel/sched/core.c:337:56: sparse: struct task_struct *
kernel/sched/core.c:843:33: 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:843:33: sparse: expected struct task_struct *task
kernel/sched/core.c:843:33: sparse: got struct task_struct [noderef] __rcu *curr
kernel/sched/core.c:1197:38: 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:1197:38: sparse: expected struct task_struct *curr
kernel/sched/core.c:1197:38: sparse: got struct task_struct [noderef] __rcu *curr
kernel/sched/core.c:1308:9: 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:1308:9: sparse: expected struct sched_domain *[assigned] sd
kernel/sched/core.c:1308:9: sparse: got struct sched_domain [noderef] __rcu *parent
kernel/sched/core.c:2295:39: 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:2295:39: sparse: expected struct task_struct *donor
kernel/sched/core.c:2295:39: sparse: got struct task_struct [noderef] __rcu *donor
kernel/sched/core.c:2310:65: 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:2310:65: sparse: expected struct task_struct *tsk
kernel/sched/core.c:2310:65: sparse: got struct task_struct [noderef] __rcu *curr
kernel/sched/core.c:3715:17: 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:3715:17: sparse: expected struct sched_domain *[assigned] sd
kernel/sched/core.c:3715:17: sparse: got struct sched_domain [noderef] __rcu *parent
kernel/sched/core.c:3985:36: 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:3985:36: sparse: expected struct task_struct const *p
kernel/sched/core.c:3985:36: sparse: got struct task_struct [noderef] __rcu *curr
kernel/sched/core.c:8501:43: 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:8501:43: sparse: expected struct task_struct *push_task
kernel/sched/core.c:8501:43: sparse: got struct task_struct [noderef] __rcu *curr
>> kernel/sched/core.c:5791:14: sparse: sparse: incorrect type in assignment (different address spaces) @@ expected struct task_struct *curr @@ got struct task_struct [noderef] __rcu *curr @@
kernel/sched/core.c:5791:14: sparse: expected struct task_struct *curr
kernel/sched/core.c:5791:14: sparse: got struct task_struct [noderef] __rcu *curr
kernel/sched/core.c:5792:15: 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:5792:15: sparse: expected struct task_struct *donor
kernel/sched/core.c:5792:15: sparse: got struct task_struct [noderef] __rcu *donor
kernel/sched/core.c:6473:32: sparse: sparse: incompatible types in comparison expression (different address spaces):
kernel/sched/core.c:6473:32: sparse: struct task_struct [noderef] __rcu *
kernel/sched/core.c:6473:32: sparse: struct task_struct *
kernel/sched/core.c:6505:23: sparse: sparse: incompatible types in comparison expression (different address spaces):
kernel/sched/core.c:6505:23: sparse: struct task_struct [noderef] __rcu *
kernel/sched/core.c:6505:23: sparse: struct task_struct *
kernel/sched/core.c:6513:46: sparse: sparse: incompatible types in comparison expression (different address spaces):
kernel/sched/core.c:6513:46: sparse: struct task_struct *
kernel/sched/core.c:6513:46: sparse: struct task_struct [noderef] __rcu *
kernel/sched/core.c:6571:9: 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:6571:9: sparse: expected struct sched_domain *[assigned] sd
kernel/sched/core.c:6571:9: sparse: got struct sched_domain [noderef] __rcu *parent
kernel/sched/core.c:7124:14: 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:7124:14: sparse: expected struct task_struct *prev
kernel/sched/core.c:7124:14: sparse: got struct task_struct [noderef] __rcu *curr
kernel/sched/core.c:7195:52: sparse: sparse: incorrect type in initializer (different address spaces) @@ expected struct task_struct *prev_donor @@ got struct task_struct [noderef] __rcu *donor @@
kernel/sched/core.c:7195:52: sparse: expected struct task_struct *prev_donor
kernel/sched/core.c:7195:52: sparse: got struct task_struct [noderef] __rcu *donor
kernel/sched/core.c:7210:31: sparse: sparse: incompatible types in comparison expression (different address spaces):
kernel/sched/core.c:7210:31: sparse: struct task_struct [noderef] __rcu *
kernel/sched/core.c:7210:31: sparse: struct task_struct *
kernel/sched/core.c:7736:17: sparse: sparse: incompatible types in comparison expression (different address spaces):
kernel/sched/core.c:7736:17: sparse: struct task_struct *
kernel/sched/core.c:7736:17: sparse: struct task_struct [noderef] __rcu *
kernel/sched/core.c:10651:25: 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:10651:25: sparse: expected struct task_struct *p
kernel/sched/core.c:10651:25: sparse: got struct task_struct [noderef] __rcu *curr
kernel/sched/core.c:10969:58: 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:10969:58: sparse: expected struct task_struct *t
kernel/sched/core.c:10969:58: sparse: got struct task_struct [noderef] __rcu *curr
kernel/sched/core.c:11012:38: sparse: sparse: incompatible types in comparison expression (different address spaces):
kernel/sched/core.c:11012:38: sparse: struct task_struct [noderef] __rcu *
kernel/sched/core.c:11012:38: sparse: struct task_struct *
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: note: in included file:
kernel/sched/sched.h:2500:26: sparse: sparse: incompatible types in comparison expression (different address spaces):
kernel/sched/sched.h:2500:26: sparse: struct task_struct [noderef] __rcu *
kernel/sched/sched.h:2500:26: sparse: struct task_struct *
kernel/sched/sched.h:2489:25: sparse: sparse: incompatible types in comparison expression (different address spaces):
kernel/sched/sched.h:2489:25: sparse: struct task_struct [noderef] __rcu *
kernel/sched/sched.h:2489:25: sparse: struct task_struct *
kernel/sched/core.c:2290:38: sparse: sparse: incompatible types in comparison expression (different address spaces):
kernel/sched/core.c:2290:38: sparse: struct task_struct [noderef] __rcu *
kernel/sched/core.c:2290:38: sparse: struct task_struct const *
kernel/sched/sched.h:2500:26: sparse: sparse: incompatible types in comparison expression (different address spaces):
kernel/sched/sched.h:2500:26: sparse: struct task_struct [noderef] __rcu *
kernel/sched/sched.h:2500:26: sparse: struct task_struct *
kernel/sched/sched.h:2801:9: sparse: sparse: incompatible types in comparison expression (different address spaces):
kernel/sched/sched.h:2801:9: sparse: struct task_struct [noderef] __rcu *
kernel/sched/sched.h:2801:9: sparse: struct task_struct *
kernel/sched/sched.h:2801:9: sparse: sparse: incompatible types in comparison expression (different address spaces):
kernel/sched/sched.h:2801:9: sparse: struct task_struct [noderef] __rcu *
kernel/sched/sched.h:2801:9: sparse: struct task_struct *
kernel/sched/sched.h:2801:9: sparse: sparse: incompatible types in comparison expression (different address spaces):
kernel/sched/sched.h:2801:9: sparse: struct task_struct [noderef] __rcu *
kernel/sched/sched.h:2801:9: sparse: struct task_struct *
kernel/sched/sched.h:2801:9: sparse: sparse: incompatible types in comparison expression (different address spaces):
kernel/sched/sched.h:2801:9: sparse: struct task_struct [noderef] __rcu *
kernel/sched/sched.h:2801:9: sparse: struct task_struct *
kernel/sched/sched.h:2801:9: sparse: sparse: incompatible types in comparison expression (different address spaces):
kernel/sched/sched.h:2801:9: sparse: struct task_struct [noderef] __rcu *
kernel/sched/sched.h:2801:9: sparse: struct task_struct *
kernel/sched/sched.h:2500:26: sparse: sparse: incompatible types in comparison expression (different address spaces):
kernel/sched/sched.h:2500:26: sparse: struct task_struct [noderef] __rcu *
kernel/sched/sched.h:2500:26: sparse: struct task_struct *
kernel/sched/sched.h:2778:9: sparse: sparse: incompatible types in comparison expression (different address spaces):
kernel/sched/sched.h:2778:9: sparse: struct task_struct [noderef] __rcu *
kernel/sched/sched.h:2778:9: sparse: struct task_struct *
vim +5791 kernel/sched/core.c
5770
5771 /*
5772 * This function gets called by the timer code, with HZ frequency.
5773 * We call it with interrupts disabled.
5774 */
5775 void sched_tick(void)
5776 {
5777 int cpu = smp_processor_id();
5778 struct rq *rq = cpu_rq(cpu);
5779 /* scheduler accounting goes to the donor task */
5780 struct task_struct *curr, *donor;
5781 struct rq_flags rf;
5782 unsigned long hw_pressure;
5783 u64 resched_latency;
5784
5785 if (housekeeping_cpu(cpu, HK_TYPE_KERNEL_NOISE))
5786 arch_scale_freq_tick();
5787
5788 sched_clock_tick();
5789
5790 rq_lock(rq, &rf);
> 5791 curr = rq->curr;
5792 donor = rq->donor;
5793
5794 psi_account_irqtime(rq, donor, NULL);
5795
5796 update_rq_clock(rq);
5797 hw_pressure = arch_scale_hw_pressure(cpu_of(rq));
5798 update_hw_load_avg(rq_clock_task(rq), rq, hw_pressure);
5799
5800 if (dynamic_preempt_lazy() && tif_test_bit(TIF_NEED_RESCHED_LAZY))
5801 resched_curr(rq);
5802
5803 donor->sched_class->task_tick(rq, donor, 0);
5804 if (sched_feat(LATENCY_WARN))
5805 resched_latency = cpu_resched_latency(rq);
5806 calc_global_load_tick(rq);
5807 sched_core_tick(rq);
5808 scx_tick(rq);
5809
5810 rq_unlock(rq, &rf);
5811
5812 if (sched_feat(LATENCY_WARN) && resched_latency)
5813 resched_latency_warn(cpu, resched_latency);
5814
5815 perf_event_task_tick();
5816
5817 if (curr->flags & PF_WQ_WORKER)
5818 wq_worker_tick(curr);
5819
5820 if (!scx_switched_all()) {
5821 rq->idle_balance = idle_cpu(cpu);
5822 sched_balance_trigger(rq);
5823 }
5824 }
5825
--
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki
reply other threads:[~2026-09-17 12:19 UTC|newest]
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