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fmviesa002.fm.intel.com with ESMTP; 06 Apr 2026 20:59:35 -0700 Received: from kbuild by d00eb8a6782a with local (Exim 4.98.2) (envelope-from ) id 1w9xbB-0000000006w-1cCm; Tue, 07 Apr 2026 03:59:33 +0000 Date: Tue, 07 Apr 2026 11:59:07 +0800 From: kernel test robot To: Tejun Heo Cc: oe-kbuild-all@lists.linux.dev, linux-kernel@vger.kernel.org, Andrea Righi Subject: kernel/sched/ext.c:3898:50: sparse: sparse: incorrect type in initializer (different address spaces) Message-ID: <202604051621.G8CWy2bc-lkp@intel.com> User-Agent: s-nail v14.9.25 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: 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: 3aae9383f42f687221c011d7ee87529398e826b3 commit: 987e00035c0e68bc0d44dec811cc9c26310b5bff sched_ext: Rename pnt_seq to kick_sync date: 5 months ago config: sparc-randconfig-r134-20260404 (https://download.01.org/0day-ci/archive/20260405/202604051621.G8CWy2bc-lkp@intel.com/config) compiler: sparc-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/20260405/202604051621.G8CWy2bc-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: 987e00035c0e ("sched_ext: Rename pnt_seq to kick_sync") | Reported-by: kernel test robot | Closes: https://lore.kernel.org/oe-kbuild-all/202604051621.G8CWy2bc-lkp@intel.com/ sparse warnings: (new ones prefixed by >>) 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: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:3057:33: 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:3057:33: sparse: expected struct scx_sched *sch kernel/sched/ext.c:3057:33: sparse: got struct scx_sched [noderef] __rcu *static [addressable] [toplevel] scx_root kernel/sched/ext.c:3086:33: 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:3086:33: sparse: expected struct scx_sched *sch kernel/sched/ext.c:3086:33: sparse: got struct scx_sched [noderef] __rcu *static [addressable] [toplevel] scx_root kernel/sched/ext.c:3099:33: 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:3099:33: sparse: expected struct scx_sched *sch kernel/sched/ext.c:3099:33: sparse: got struct scx_sched [noderef] __rcu *static [addressable] [toplevel] scx_root kernel/sched/ext.c:3148:33: 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:3148:33: sparse: expected struct scx_sched *sch kernel/sched/ext.c:3148:33: sparse: got struct scx_sched [noderef] __rcu *static [addressable] [toplevel] scx_root kernel/sched/ext.c:3167:33: 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:3167:33: sparse: expected struct scx_sched *sch kernel/sched/ext.c:3167:33: sparse: got struct scx_sched [noderef] __rcu *static [addressable] [toplevel] scx_root kernel/sched/ext.c:3185:33: 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:3185:33: sparse: expected struct scx_sched *sch kernel/sched/ext.c:3185:33: sparse: got struct scx_sched [noderef] __rcu *static [addressable] [toplevel] scx_root kernel/sched/ext.c:3201:33: 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:3201:33: sparse: expected struct scx_sched *sch kernel/sched/ext.c:3201:33: sparse: got struct scx_sched [noderef] __rcu *static [addressable] [toplevel] scx_root kernel/sched/ext.c:3218:33: 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:3218:33: sparse: expected struct scx_sched *sch kernel/sched/ext.c:3218:33: 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/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): kernel/sched/sched.h:2281:25: sparse: struct task_struct [noderef] __rcu * kernel/sched/sched.h:2281:25: sparse: struct task_struct * 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