From: kernel test robot <lkp@intel.com>
To: Tejun Heo <tj@kernel.org>
Cc: oe-kbuild-all@lists.linux.dev, linux-kernel@vger.kernel.org,
Andrea Righi <arighi@nvidia.com>
Subject: kernel/sched/ext.c:3898:50: sparse: sparse: incorrect type in initializer (different address spaces)
Date: Wed, 04 Mar 2026 02:02:08 +0800 [thread overview]
Message-ID: <202603040159.HvlhyumK-lkp@intel.com> (raw)
Hi Tejun,
FYI, the error/warning was bisected to this commit, please ignore it if it's irrelevant.
tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head: af4e9ef3d78420feb8fe58cd9a1ab80c501b3c08
commit: 987e00035c0e68bc0d44dec811cc9c26310b5bff sched_ext: Rename pnt_seq to kick_sync
date: 4 months ago
config: sparc-randconfig-r122-20260302 (https://download.01.org/0day-ci/archive/20260304/202603040159.HvlhyumK-lkp@intel.com/config)
compiler: sparc64-linux-gcc (GCC) 8.5.0
sparse: v0.6.5-rc1
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20260304/202603040159.HvlhyumK-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@intel.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202603040159.HvlhyumK-lkp@intel.com/
sparse warnings: (new ones prefixed by >>)
kernel/sched/deadline.c:2254:43: sparse: sparse: incorrect type in argument 2 (different address spaces) @@ expected struct task_struct *p @@ got struct task_struct [noderef] __rcu *donor @@
kernel/sched/deadline.c:2254:43: sparse: expected struct task_struct *p
kernel/sched/deadline.c:2254:43: sparse: got struct task_struct [noderef] __rcu *donor
kernel/sched/deadline.c:2835:38: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected struct task_struct *tsk @@ got struct task_struct [noderef] __rcu *curr @@
kernel/sched/deadline.c:2835:38: sparse: expected struct task_struct *tsk
kernel/sched/deadline.c:2835:38: sparse: got struct task_struct [noderef] __rcu *curr
kernel/sched/deadline.c:2837:23: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected struct task_struct *p @@ got struct task_struct [noderef] __rcu *donor @@
kernel/sched/deadline.c:2837:23: sparse: expected struct task_struct *p
kernel/sched/deadline.c:2837:23: sparse: got struct task_struct [noderef] __rcu *donor
kernel/sched/deadline.c:2839:44: sparse: sparse: incorrect type in argument 2 (different address spaces) @@ expected struct sched_dl_entity const *b @@ got struct sched_dl_entity [noderef] __rcu * @@
kernel/sched/deadline.c:2839:44: sparse: expected struct sched_dl_entity const *b
kernel/sched/deadline.c:2839:44: sparse: got struct sched_dl_entity [noderef] __rcu *
kernel/sched/deadline.c:3033:23: sparse: sparse: incompatible types in comparison expression (different address spaces):
kernel/sched/deadline.c:3033:23: sparse: struct task_struct [noderef] __rcu *
kernel/sched/deadline.c:3033:23: sparse: struct task_struct *
kernel/sched/deadline.c:3080:32: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected struct task_struct *p @@ got struct task_struct [noderef] __rcu *curr @@
kernel/sched/build_policy.c: note: in included file:
kernel/sched/ext.c:2190:41: sparse: sparse: incorrect type in initializer (different address spaces) @@ expected struct scx_sched *sch @@ got struct scx_sched [noderef] __rcu *static [toplevel] scx_root @@
kernel/sched/ext.c:865:13: sparse: sparse: cast removes address space '__rcu' of expression
kernel/sched/ext.c:865:13: sparse: sparse: incorrect type in argument 2 (different address spaces) @@ expected unsigned long const volatile *addr @@ got unsigned long [noderef] __rcu * @@
kernel/sched/ext.c:865:13: sparse: sparse: incorrect type in argument 2 (different address spaces) @@ expected unsigned long const volatile *addr @@ got unsigned long [noderef] __rcu * @@
kernel/sched/ext.c:872:38: sparse: sparse: incorrect type in initializer (different address spaces) @@ expected struct task_struct *curr @@ got struct task_struct [noderef] __rcu *curr @@
kernel/sched/ext.c:1022:56: sparse: sparse: incompatible types in comparison expression (different address spaces):
kernel/sched/ext.c:1022:56: sparse: struct task_struct *
kernel/sched/ext.c:1022:56: sparse: struct task_struct [noderef] __rcu *
kernel/sched/ext.c:1047:66: sparse: sparse: incompatible types in comparison expression (different address spaces):
kernel/sched/ext.c:1047:66: sparse: struct task_struct [noderef] __rcu *
kernel/sched/ext.c:1047:66: sparse: struct task_struct *
kernel/sched/ext.c:1237:33: sparse: sparse: incorrect type in initializer (different address spaces) @@ expected struct scx_sched *sch @@ got struct scx_sched [noderef] __rcu *static [toplevel] scx_root @@
kernel/sched/ext.c:1237:33: sparse: expected struct scx_sched *sch
kernel/sched/ext.c:1237:33: sparse: got struct scx_sched [noderef] __rcu *static [toplevel] scx_root
kernel/sched/ext.c:1355:33: sparse: sparse: incorrect type in initializer (different address spaces) @@ expected struct scx_sched *sch @@ got struct scx_sched [noderef] __rcu *static [toplevel] scx_root @@
kernel/sched/ext.c:1355:33: sparse: expected struct scx_sched *sch
kernel/sched/ext.c:1355:33: sparse: got struct scx_sched [noderef] __rcu *static [toplevel] scx_root
kernel/sched/ext.c:1402:33: sparse: sparse: incorrect type in initializer (different address spaces) @@ expected struct scx_sched *sch @@ got struct scx_sched [noderef] __rcu *static [toplevel] scx_root @@
kernel/sched/ext.c:1402:33: sparse: expected struct scx_sched *sch
kernel/sched/ext.c:1402:33: sparse: got struct scx_sched [noderef] __rcu *static [toplevel] scx_root
kernel/sched/ext.c:1451:33: sparse: sparse: incorrect type in initializer (different address spaces) @@ expected struct scx_sched *sch @@ got struct scx_sched [noderef] __rcu *static [toplevel] scx_root @@
kernel/sched/ext.c:1451:33: sparse: expected struct scx_sched *sch
kernel/sched/ext.c:1451:33: sparse: got struct scx_sched [noderef] __rcu *static [toplevel] scx_root
kernel/sched/ext.c:1495:33: sparse: sparse: incorrect type in initializer (different address spaces) @@ expected struct scx_sched *sch @@ got struct scx_sched [noderef] __rcu *static [toplevel] scx_root @@
kernel/sched/ext.c:1495:33: sparse: expected struct scx_sched *sch
kernel/sched/ext.c:1495:33: sparse: got struct scx_sched [noderef] __rcu *static [toplevel] scx_root
kernel/sched/ext.c:1496:35: sparse: sparse: incorrect type in initializer (different address spaces) @@ expected struct task_struct *p @@ got struct task_struct [noderef] __rcu *curr @@
kernel/sched/ext.c:1496:35: sparse: expected struct task_struct *p
kernel/sched/ext.c:1496:35: sparse: got struct task_struct [noderef] __rcu *curr
kernel/sched/ext.c:1506:33: sparse: sparse: incorrect type in initializer (different address spaces) @@ expected struct scx_sched *sch @@ got struct scx_sched [noderef] __rcu *static [toplevel] scx_root @@
kernel/sched/ext.c:1506:33: sparse: expected struct scx_sched *sch
kernel/sched/ext.c:1506:33: sparse: got struct scx_sched [noderef] __rcu *static [toplevel] scx_root
kernel/sched/ext.c:1507:38: sparse: sparse: incorrect type in initializer (different address spaces) @@ expected struct task_struct *from @@ got struct task_struct [noderef] __rcu *curr @@
kernel/sched/ext.c:1507:38: sparse: expected struct task_struct *from
kernel/sched/ext.c:1507:38: sparse: got struct task_struct [noderef] __rcu *curr
kernel/sched/ext.c:2061:33: sparse: sparse: incorrect type in initializer (different address spaces) @@ expected struct scx_sched *sch @@ got struct scx_sched [noderef] __rcu *static [toplevel] scx_root @@
kernel/sched/ext.c:2061:33: sparse: expected struct scx_sched *sch
kernel/sched/ext.c:2061:33: sparse: got struct scx_sched [noderef] __rcu *static [toplevel] scx_root
kernel/sched/ext.c:2204:33: sparse: sparse: incorrect type in initializer (different address spaces) @@ expected struct scx_sched *sch @@ got struct scx_sched [noderef] __rcu *static [toplevel] scx_root @@
kernel/sched/ext.c:2204:33: sparse: expected struct scx_sched *sch
kernel/sched/ext.c:2204:33: sparse: got struct scx_sched [noderef] __rcu *static [toplevel] scx_root
kernel/sched/ext.c:2260:33: sparse: sparse: incorrect type in initializer (different address spaces) @@ expected struct scx_sched *sch @@ got struct scx_sched [noderef] __rcu *static [toplevel] scx_root @@
kernel/sched/ext.c:2260:33: sparse: expected struct scx_sched *sch
kernel/sched/ext.c:2260:33: sparse: got struct scx_sched [noderef] __rcu *static [toplevel] scx_root
kernel/sched/ext.c:2301:33: sparse: sparse: incorrect type in initializer (different address spaces) @@ expected struct scx_sched *sch @@ got struct scx_sched [noderef] __rcu *static [toplevel] scx_root @@
kernel/sched/ext.c:2301:33: sparse: expected struct scx_sched *sch
kernel/sched/ext.c:2301:33: sparse: got struct scx_sched [noderef] __rcu *static [toplevel] scx_root
kernel/sched/ext.c:2355:38: sparse: sparse: incorrect type in initializer (different address spaces) @@ expected struct task_struct *prev @@ got struct task_struct [noderef] __rcu *curr @@
kernel/sched/ext.c:2355:38: sparse: expected struct task_struct *prev
kernel/sched/ext.c:2355:38: sparse: got struct task_struct [noderef] __rcu *curr
kernel/sched/ext.c:2448:33: sparse: sparse: incorrect type in initializer (different address spaces) @@ expected struct scx_sched *sch @@ got struct scx_sched [noderef] __rcu *static [addressable] [toplevel] scx_root @@
kernel/sched/ext.c:2448:33: sparse: expected struct scx_sched *sch
kernel/sched/ext.c:2448:33: sparse: got struct scx_sched [noderef] __rcu *static [addressable] [toplevel] scx_root
kernel/sched/ext.c:2468:33: sparse: sparse: incorrect type in initializer (different address spaces) @@ expected struct scx_sched *sch @@ got struct scx_sched [noderef] __rcu *static [addressable] [toplevel] scx_root @@
kernel/sched/ext.c:2468:33: sparse: expected struct scx_sched *sch
kernel/sched/ext.c:2468:33: sparse: got struct scx_sched [noderef] __rcu *static [addressable] [toplevel] scx_root
kernel/sched/ext.c:2529:33: sparse: sparse: incorrect type in initializer (different address spaces) @@ expected struct scx_sched *sch @@ got struct scx_sched [noderef] __rcu *static [addressable] [toplevel] scx_root @@
kernel/sched/ext.c:2529:33: sparse: expected struct scx_sched *sch
kernel/sched/ext.c:2529:33: sparse: got struct scx_sched [noderef] __rcu *static [addressable] [toplevel] scx_root
kernel/sched/ext.c:2548:33: sparse: sparse: incorrect type in initializer (different address spaces) @@ expected struct scx_sched *sch @@ got struct scx_sched [noderef] __rcu *static [addressable] [toplevel] scx_root @@
kernel/sched/ext.c:2548:33: sparse: expected struct scx_sched *sch
kernel/sched/ext.c:2548:33: sparse: got struct scx_sched [noderef] __rcu *static [addressable] [toplevel] scx_root
kernel/sched/ext.c:2670:33: sparse: sparse: incorrect type in initializer (different address spaces) @@ expected struct scx_sched *sch @@ got struct scx_sched [noderef] __rcu *static [addressable] [toplevel] scx_root @@
kernel/sched/ext.c:2670:33: sparse: expected struct scx_sched *sch
kernel/sched/ext.c:2670:33: sparse: got struct scx_sched [noderef] __rcu *static [addressable] [toplevel] scx_root
kernel/sched/ext.c:2749:33: sparse: sparse: incorrect type in initializer (different address spaces) @@ expected struct scx_sched *sch @@ got struct scx_sched [noderef] __rcu *static [addressable] [toplevel] scx_root @@
kernel/sched/ext.c:2749:33: sparse: expected struct scx_sched *sch
kernel/sched/ext.c:2749:33: sparse: got struct scx_sched [noderef] __rcu *static [addressable] [toplevel] scx_root
kernel/sched/ext.c:2802:33: sparse: sparse: incorrect type in initializer (different address spaces) @@ expected struct scx_sched *sch @@ got struct scx_sched [noderef] __rcu *static [addressable] [toplevel] scx_root @@
kernel/sched/ext.c:2802:33: sparse: expected struct scx_sched *sch
kernel/sched/ext.c:2802:33: sparse: got struct scx_sched [noderef] __rcu *static [addressable] [toplevel] scx_root
kernel/sched/ext.c:2830:33: sparse: sparse: incorrect type in initializer (different address spaces) @@ expected struct scx_sched *sch @@ got struct scx_sched [noderef] __rcu *static [addressable] [toplevel] scx_root @@
kernel/sched/ext.c:2830:33: sparse: expected struct scx_sched *sch
kernel/sched/ext.c:2830:33: sparse: got struct scx_sched [noderef] __rcu *static [addressable] [toplevel] scx_root
kernel/sched/ext.c:2843:33: sparse: sparse: incorrect type in initializer (different address spaces) @@ expected struct scx_sched *sch @@ got struct scx_sched [noderef] __rcu *static [addressable] [toplevel] scx_root @@
kernel/sched/ext.c:2843:33: sparse: expected struct scx_sched *sch
kernel/sched/ext.c:2843:33: sparse: got struct scx_sched [noderef] __rcu *static [addressable] [toplevel] scx_root
kernel/sched/ext.c:2973:33: sparse: sparse: incorrect type in initializer (different address spaces) @@ expected struct scx_sched *sch @@ got struct scx_sched [noderef] __rcu *static [addressable] [toplevel] scx_root @@
kernel/sched/ext.c:2973:33: sparse: expected struct scx_sched *sch
kernel/sched/ext.c:2973:33: sparse: got struct scx_sched [noderef] __rcu *static [addressable] [toplevel] scx_root
kernel/sched/ext.c:2989:33: sparse: sparse: incorrect type in initializer (different address spaces) @@ expected struct scx_sched *sch @@ got struct scx_sched [noderef] __rcu *static [addressable] [toplevel] scx_root @@
kernel/sched/ext.c:2989:33: sparse: expected struct scx_sched *sch
kernel/sched/ext.c:2989:33: sparse: got struct scx_sched [noderef] __rcu *static [addressable] [toplevel] scx_root
>> kernel/sched/ext.c:3898:50: sparse: sparse: incorrect type in initializer (different address spaces) @@ expected struct scx_kick_syncs **ksyncs @@ got struct scx_kick_syncs [noderef] __rcu ** @@
kernel/sched/ext.c:3898:50: sparse: expected struct scx_kick_syncs **ksyncs
kernel/sched/ext.c:3898:50: sparse: got struct scx_kick_syncs [noderef] __rcu **
kernel/sched/ext.c:3901:27: sparse: sparse: incompatible types in comparison expression (different address spaces):
kernel/sched/ext.c:3901:27: sparse: struct scx_kick_syncs [noderef] __rcu *
kernel/sched/ext.c:3901:27: sparse: struct scx_kick_syncs *
kernel/sched/ext.c:3901:27: sparse: sparse: incompatible types in comparison expression (different address spaces):
kernel/sched/ext.c:3901:27: sparse: struct scx_kick_syncs [noderef] __rcu *
kernel/sched/ext.c:3901:27: sparse: struct scx_kick_syncs *
kernel/sched/ext.c:4182:33: sparse: sparse: incorrect type in initializer (different address spaces) @@ expected struct scx_sched *sch @@ got struct scx_sched [noderef] __rcu *static [addressable] [assigned] [toplevel] scx_root @@
kernel/sched/ext.c:4225:33: sparse: sparse: incorrect type in initializer (different address spaces) @@ expected struct scx_sched *sch @@ got struct scx_sched [noderef] __rcu *static [addressable] [assigned] [toplevel] scx_root @@
kernel/sched/ext.c:4336:52: sparse: sparse: incorrect type in argument 3 (different address spaces) @@ expected struct task_struct *p @@ got struct task_struct [noderef] __rcu *curr @@
kernel/sched/ext.c:4413:50: sparse: sparse: incorrect type in initializer (different address spaces) @@ expected struct scx_kick_syncs **ksyncs @@ got struct scx_kick_syncs [noderef] __rcu ** @@
kernel/sched/ext.c:4416:17: sparse: sparse: incompatible types in comparison expression (different address spaces):
kernel/sched/ext.c:4416:17: sparse: struct scx_kick_syncs [noderef] __rcu *
kernel/sched/ext.c:4416:17: sparse: struct scx_kick_syncs *
kernel/sched/ext.c:4425:17: sparse: sparse: incompatible types in comparison expression (different address spaces):
kernel/sched/ext.c:4425:17: sparse: struct scx_kick_syncs [noderef] __rcu *
kernel/sched/ext.c:4425:17: sparse: struct scx_kick_syncs *
kernel/sched/ext.c:5119:32: 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/ext.c:5246:33: sparse: sparse: incorrect type in initializer (different address spaces) @@ expected struct scx_sched *sch @@ got struct scx_sched [noderef] __rcu *static [addressable] [assigned] [toplevel] scx_root @@
kernel/sched/ext.c:5573:33: sparse: sparse: incorrect type in initializer (different address spaces) @@ expected struct scx_sched *sch @@ got struct scx_sched [noderef] __rcu *static [addressable] [assigned] [toplevel] scx_root @@
kernel/sched/ext.c:6537:15: sparse: sparse: incompatible types in comparison expression (different address spaces):
kernel/sched/ext.c:6537:15: sparse: struct scx_sched [noderef] __rcu *
kernel/sched/ext.c:6537:15: sparse: struct scx_sched *
kernel/sched/ext.c:6632:33: sparse: sparse: incompatible types in comparison expression (different address spaces):
kernel/sched/ext.c:6632:33: sparse: struct task_struct [noderef] __rcu *
kernel/sched/ext.c:6632:33: sparse: struct task_struct const *
kernel/sched/build_policy.c: note: in included file:
kernel/sched/ext_idle.c:736:33: sparse: sparse: incorrect type in initializer (different address spaces) @@ expected struct scx_sched *sch @@ got struct scx_sched [noderef] __rcu *static [addressable] [assigned] [toplevel] scx_root @@
kernel/sched/ext_idle.c:756:49: 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/build_policy.c: note: in included file:
kernel/sched/syscalls.c:185:22: sparse: sparse: incompatible types in comparison expression (different address spaces):
kernel/sched/syscalls.c:185:22: sparse: struct task_struct [noderef] __rcu *
kernel/sched/syscalls.c:185:22: sparse: struct task_struct *
kernel/sched/syscalls.c:230:48: sparse: sparse: incompatible types in comparison expression (different address spaces):
kernel/sched/syscalls.c:230:48: sparse: struct task_struct [noderef] __rcu *
kernel/sched/syscalls.c:230:48: sparse: struct task_struct *
kernel/sched/build_policy.c: note: in included file:
kernel/sched/sched.h:2281:25: sparse: sparse: incompatible types in comparison expression (different address spaces):
kernel/sched/sched.h:2281:25: sparse: struct task_struct [noderef] __rcu *
kernel/sched/sched.h:2281:25: sparse: struct task_struct *
kernel/sched/sched.h:2281:25: sparse: sparse: incompatible types in comparison expression (different address spaces):
kernel/sched/sched.h:2281:25: sparse: struct task_struct [noderef] __rcu *
kernel/sched/sched.h:2281:25: sparse: struct task_struct *
kernel/sched/sched.h:2292:26: sparse: sparse: incompatible types in comparison expression (different address spaces):
kernel/sched/sched.h:2292:26: sparse: struct task_struct [noderef] __rcu *
kernel/sched/sched.h:2292:26: sparse: struct task_struct *
kernel/sched/sched.h:2281:25: sparse: sparse: incompatible types in comparison expression (different address spaces):
vim +3898 kernel/sched/ext.c
3892
3893 static void free_kick_syncs(void)
3894 {
3895 int cpu;
3896
3897 for_each_possible_cpu(cpu) {
> 3898 struct scx_kick_syncs **ksyncs = per_cpu_ptr(&scx_kick_syncs, cpu);
3899 struct scx_kick_syncs *to_free;
3900
3901 to_free = rcu_replace_pointer(*ksyncs, NULL, true);
3902 if (to_free)
3903 call_rcu(&to_free->rcu, free_kick_syncs_rcu);
3904 }
3905 }
3906
--
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki
next reply other threads:[~2026-03-03 18:02 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-03-03 18:02 kernel test robot [this message]
2026-04-07 3:59 kernel test robot
2026-06-12 15:47 kernel test robot
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