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orviesa003.jf.intel.com with ESMTP; 02 Jul 2026 07:19:05 -0700 Received: from kbuild by ea128546eb3d with local (Exim 4.98.2) (envelope-from ) id 1wfIFq-00000000Aqf-3MEN; Thu, 02 Jul 2026 14:19:02 +0000 Date: Thu, 02 Jul 2026 22:18:11 +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/ext.c:5803:50: sparse: sparse: incorrect type in initializer (different address spaces) Message-ID: <202607022235.IeMjcmO2-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: tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master head: 4a50a141f05a8d1737661b19ee22ff8455b94409 commit: bba2c3615bd6cfee7456d1130f2e6b01b3f4e9ba sched_ext: Move sources under kernel/sched/ext/ date: 10 days ago config: powerpc64-randconfig-r113-20260702 (https://download.01.org/0day-ci/archive/20260702/202607022235.IeMjcmO2-lkp@intel.com/config) compiler: clang version 23.0.0git (https://github.com/llvm/llvm-project 0a2fb2a2269da0e2a3e230beb6cad39ca314db33) sparse: v0.6.5-rc1 reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20260702/202607022235.IeMjcmO2-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: bba2c3615bd6 ("sched_ext: Move sources under kernel/sched/ext/") | Reported-by: kernel test robot | Closes: https://lore.kernel.org/oe-kbuild-all/202607022235.IeMjcmO2-lkp@intel.com/ sparse warnings: (new ones prefixed by >>) kernel/sched/deadline.c:3151:23: sparse: got struct task_struct [noderef] __rcu *donor kernel/sched/deadline.c:3161:13: sparse: sparse: incompatible types in comparison expression (different address spaces): kernel/sched/deadline.c:3161:13: sparse: struct task_struct * kernel/sched/deadline.c:3161:13: sparse: struct task_struct [noderef] __rcu * kernel/sched/deadline.c:3267:25: sparse: sparse: incompatible types in comparison expression (different address spaces): kernel/sched/deadline.c:3267:25: sparse: struct task_struct * kernel/sched/deadline.c:3267:25: sparse: struct task_struct [noderef] __rcu * kernel/sched/deadline.c:2744:42: 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:2744:42: sparse: expected struct sched_dl_entity const *b kernel/sched/deadline.c:2744:42: sparse: got struct sched_dl_entity [noderef] __rcu * kernel/sched/deadline.c:2754:38: 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:2754:38: sparse: expected struct task_struct *tsk kernel/sched/deadline.c:2754:38: sparse: got struct task_struct [noderef] __rcu *curr kernel/sched/deadline.c:1188:39: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected struct task_struct *p @@ got struct task_struct [noderef] __rcu *curr @@ kernel/sched/deadline.c:1188:39: sparse: expected struct task_struct *p kernel/sched/deadline.c:1188:39: sparse: got struct task_struct [noderef] __rcu *curr kernel/sched/deadline.c:1188:85: 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:1188:85: sparse: expected struct sched_dl_entity const *b kernel/sched/deadline.c:1188:85: sparse: got struct sched_dl_entity [noderef] __rcu * kernel/sched/deadline.c:1286:23: 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:1286:23: sparse: expected struct task_struct *p kernel/sched/deadline.c:1286:23: sparse: got struct task_struct [noderef] __rcu *donor kernel/sched/deadline.c:1815:31: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected struct task_struct *p @@ got struct task_struct [noderef] __rcu *curr @@ kernel/sched/deadline.c:1815:31: sparse: expected struct task_struct *p kernel/sched/deadline.c:1815:31: sparse: got struct task_struct [noderef] __rcu *curr kernel/sched/deadline.c:1815:70: 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:1815:70: sparse: expected struct sched_dl_entity const *b kernel/sched/deadline.c:1815:70: sparse: got struct sched_dl_entity [noderef] __rcu * kernel/sched/deadline.c:2130:39: sparse: sparse: incorrect type in initializer (different address spaces) @@ expected struct task_struct *donor @@ got struct task_struct [noderef] __rcu *donor @@ kernel/sched/deadline.c:2130:39: sparse: expected struct task_struct *donor kernel/sched/deadline.c:2130:39: sparse: got struct task_struct [noderef] __rcu *donor kernel/sched/deadline.c:2973:9: sparse: sparse: incorrect type in assignment (different address spaces) @@ expected struct sched_domain *[assigned] sd @@ got struct sched_domain [noderef] __rcu *parent @@ kernel/sched/deadline.c:2973:9: sparse: expected struct sched_domain *[assigned] sd kernel/sched/deadline.c:2973:9: sparse: got struct sched_domain [noderef] __rcu *parent kernel/sched/deadline.c:2618:14: sparse: sparse: incorrect type in assignment (different address spaces) @@ expected struct task_struct *curr @@ got struct task_struct [noderef] __rcu * @@ kernel/sched/deadline.c:2618:14: sparse: expected struct task_struct *curr kernel/sched/deadline.c:2618:14: sparse: got struct task_struct [noderef] __rcu * kernel/sched/deadline.c:2619:15: sparse: sparse: incorrect type in assignment (different address spaces) @@ expected struct task_struct *donor @@ got struct task_struct [noderef] __rcu * @@ kernel/sched/deadline.c:2619:15: sparse: expected struct task_struct *donor kernel/sched/deadline.c:2619:15: sparse: got struct task_struct [noderef] __rcu * kernel/sched/deadline.c:2693:43: 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:2693:43: sparse: expected struct task_struct *p kernel/sched/deadline.c:2693:43: sparse: got struct task_struct [noderef] __rcu *donor kernel/sched/deadline.c:2713:35: sparse: sparse: incorrect type in initializer (different address spaces) @@ expected struct task_struct *p @@ got struct task_struct [noderef] __rcu *donor @@ kernel/sched/deadline.c:2713:35: sparse: expected struct task_struct *p kernel/sched/deadline.c:2713:35: sparse: got struct task_struct [noderef] __rcu *donor kernel/sched/deadline.c:3312:38: 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:3312:38: sparse: expected struct task_struct *tsk kernel/sched/deadline.c:3312:38: sparse: got struct task_struct [noderef] __rcu *curr kernel/sched/deadline.c:3314:23: 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:3314:23: sparse: expected struct task_struct *p kernel/sched/deadline.c:3314:23: sparse: got struct task_struct [noderef] __rcu *donor kernel/sched/deadline.c:3316:44: 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:3316:44: sparse: expected struct sched_dl_entity const *b kernel/sched/deadline.c:3316:44: sparse: got struct sched_dl_entity [noderef] __rcu * kernel/sched/deadline.c:3578:23: sparse: sparse: incompatible types in comparison expression (different address spaces): kernel/sched/deadline.c:3578:23: sparse: struct task_struct [noderef] __rcu * kernel/sched/deadline.c:3578:23: sparse: struct task_struct * kernel/sched/deadline.c:3631:32: 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/ext.c:1451:38: sparse: sparse: incorrect type in initializer (different address spaces) @@ expected struct task_struct *curr @@ got struct task_struct [noderef] __rcu *curr @@ kernel/sched/ext/ext.c:1622:48: sparse: sparse: incompatible types in comparison expression (different address spaces): kernel/sched/ext/ext.c:1622:48: sparse: struct task_struct * kernel/sched/ext/ext.c:1622:48: sparse: struct task_struct [noderef] __rcu * kernel/sched/ext/ext.c:1771:66: sparse: sparse: incompatible types in comparison expression (different address spaces): kernel/sched/ext/ext.c:1771:66: sparse: struct task_struct [noderef] __rcu * kernel/sched/ext/ext.c:1771:66: sparse: struct task_struct * kernel/sched/ext/ext.c:2315:35: sparse: sparse: incorrect type in initializer (different address spaces) @@ expected struct task_struct *p @@ got struct task_struct [noderef] __rcu *donor @@ kernel/sched/ext/ext.c:2315:35: sparse: expected struct task_struct *p kernel/sched/ext/ext.c:2315:35: sparse: got struct task_struct [noderef] __rcu *donor kernel/sched/ext/ext.c:2326:38: sparse: sparse: incorrect type in initializer (different address spaces) @@ expected struct task_struct *from @@ got struct task_struct [noderef] __rcu *donor @@ kernel/sched/ext/ext.c:2326:38: sparse: expected struct task_struct *from kernel/sched/ext/ext.c:2326:38: sparse: got struct task_struct [noderef] __rcu *donor kernel/sched/ext/ext.c:3000:33: sparse: sparse: incorrect type in initializer (different address spaces) @@ expected struct scx_sched *sch @@ got struct scx_sched [noderef] __rcu *[addressable] [toplevel] scx_root @@ kernel/sched/ext/ext.c:3000:33: sparse: expected struct scx_sched *sch kernel/sched/ext/ext.c:3000:33: sparse: got struct scx_sched [noderef] __rcu *[addressable] [toplevel] scx_root kernel/sched/ext/ext.c:3136:33: sparse: sparse: incorrect type in initializer (different address spaces) @@ expected struct scx_sched *sch @@ got struct scx_sched [noderef] __rcu *[addressable] [toplevel] scx_root @@ kernel/sched/ext/ext.c:3136:33: sparse: expected struct scx_sched *sch kernel/sched/ext/ext.c:3136:33: sparse: got struct scx_sched [noderef] __rcu *[addressable] [toplevel] scx_root kernel/sched/ext/ext.c:3278:38: sparse: sparse: incorrect type in initializer (different address spaces) @@ expected struct task_struct *prev @@ got struct task_struct [noderef] __rcu *curr @@ kernel/sched/ext/ext.c:3278:38: sparse: expected struct task_struct *prev kernel/sched/ext/ext.c:3278:38: sparse: got struct task_struct [noderef] __rcu *curr kernel/sched/ext/ext.c:3509:33: sparse: sparse: incorrect type in initializer (different address spaces) @@ expected struct scx_sched *sch @@ got struct scx_sched [noderef] __rcu *[addressable] [toplevel] scx_root @@ kernel/sched/ext/ext.c:3509:33: sparse: expected struct scx_sched *sch kernel/sched/ext/ext.c:3509:33: sparse: got struct scx_sched [noderef] __rcu *[addressable] [toplevel] scx_root kernel/sched/ext/ext.c:3917:41: sparse: sparse: incorrect type in initializer (different address spaces) @@ expected struct scx_sched *sch @@ got struct scx_sched [noderef] __rcu *[addressable] [toplevel] scx_root @@ kernel/sched/ext/ext.c:3917:41: sparse: expected struct scx_sched *sch kernel/sched/ext/ext.c:3917:41: sparse: got struct scx_sched [noderef] __rcu *[addressable] [toplevel] scx_root kernel/sched/ext/ext.c:5757:14: sparse: sparse: undefined identifier '__builtin_infer_alloc_token' kernel/sched/ext/ext.c:5757:14: sparse: sparse: undefined identifier '__builtin_infer_alloc_token' kernel/sched/ext/ext.c:5757:14: sparse: sparse: undefined identifier '__builtin_infer_alloc_token' kernel/sched/ext/ext.c:5762:18: sparse: sparse: undefined identifier '__builtin_infer_alloc_token' kernel/sched/ext/ext.c:5762:18: sparse: sparse: undefined identifier '__builtin_infer_alloc_token' kernel/sched/ext/ext.c:5762:18: sparse: sparse: undefined identifier '__builtin_infer_alloc_token' kernel/sched/ext/ext.c:5763:19: sparse: sparse: undefined identifier '__builtin_infer_alloc_token' kernel/sched/ext/ext.c:5763:19: sparse: sparse: undefined identifier '__builtin_infer_alloc_token' kernel/sched/ext/ext.c:5763:19: sparse: sparse: undefined identifier '__builtin_infer_alloc_token' kernel/sched/ext/ext.c:5764:20: sparse: sparse: undefined identifier '__builtin_infer_alloc_token' kernel/sched/ext/ext.c:5764:20: sparse: sparse: undefined identifier '__builtin_infer_alloc_token' kernel/sched/ext/ext.c:5764:20: sparse: sparse: undefined identifier '__builtin_infer_alloc_token' >> kernel/sched/ext/ext.c:5803:50: 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/ext.c:5803:50: sparse: expected struct scx_kick_syncs **ksyncs kernel/sched/ext/ext.c:5803:50: sparse: got struct scx_kick_syncs [noderef] __rcu ** kernel/sched/ext/ext.c:5806:27: sparse: sparse: incompatible types in comparison expression (different address spaces): kernel/sched/ext/ext.c:5806:27: sparse: struct scx_kick_syncs [noderef] __rcu * kernel/sched/ext/ext.c:5806:27: sparse: struct scx_kick_syncs * kernel/sched/ext/ext.c:5806:27: sparse: sparse: incompatible types in comparison expression (different address spaces): kernel/sched/ext/ext.c:5806:27: sparse: struct scx_kick_syncs [noderef] __rcu * kernel/sched/ext/ext.c:5806:27: sparse: struct scx_kick_syncs * kernel/sched/ext/ext.c:6626:57: sparse: sparse: incorrect type in argument 2 (different address spaces) @@ expected struct task_struct const *p @@ got struct task_struct [noderef] __rcu *curr @@ kernel/sched/ext/ext.c:6627:51: sparse: sparse: incorrect type in argument 5 (different address spaces) @@ expected struct task_struct *p @@ got struct task_struct [noderef] __rcu *curr @@ kernel/sched/ext/ext.c:6784:50: 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/ext.c:6787:17: sparse: sparse: incompatible types in comparison expression (different address spaces): kernel/sched/ext/ext.c:6787:17: sparse: struct scx_kick_syncs [noderef] __rcu * kernel/sched/ext/ext.c:6787:17: sparse: struct scx_kick_syncs * kernel/sched/ext/ext.c:6789:30: sparse: sparse: undefined identifier '__builtin_infer_alloc_token' kernel/sched/ext/ext.c:6789:30: sparse: sparse: undefined identifier '__builtin_infer_alloc_token' kernel/sched/ext/ext.c:6789:30: sparse: sparse: undefined identifier '__builtin_infer_alloc_token' kernel/sched/ext/ext.c:6796:17: sparse: sparse: incompatible types in comparison expression (different address spaces): kernel/sched/ext/ext.c:6796:17: sparse: struct scx_kick_syncs [noderef] __rcu * kernel/sched/ext/ext.c:6796:17: sparse: struct scx_kick_syncs * kernel/sched/ext/ext.c:6814:17: sparse: sparse: undefined identifier '__builtin_infer_alloc_token' kernel/sched/ext/ext.c:6814:17: sparse: sparse: undefined identifier '__builtin_infer_alloc_token' kernel/sched/ext/ext.c:6814:17: sparse: sparse: undefined identifier '__builtin_infer_alloc_token' kernel/sched/ext/ext.c:6857:15: sparse: sparse: undefined identifier '__builtin_infer_alloc_token' kernel/sched/ext/ext.c:6857:15: sparse: sparse: undefined identifier '__builtin_infer_alloc_token' kernel/sched/ext/ext.c:6857:15: sparse: sparse: undefined identifier '__builtin_infer_alloc_token' kernel/sched/ext/ext.c:6873:22: sparse: sparse: undefined identifier '__builtin_infer_alloc_token' kernel/sched/ext/ext.c:6873:22: sparse: sparse: undefined identifier '__builtin_infer_alloc_token' kernel/sched/ext/ext.c:6873:22: sparse: sparse: undefined identifier '__builtin_infer_alloc_token' kernel/sched/ext/ext.c:8379:32: 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/ext.c:8379:32: sparse: expected struct task_struct const *p kernel/sched/ext/ext.c:8379:32: sparse: got struct task_struct [noderef] __rcu *curr kernel/sched/ext/ext.c:9314:15: sparse: sparse: undefined identifier '__builtin_infer_alloc_token' kernel/sched/ext/ext.c:9314:15: sparse: sparse: undefined identifier '__builtin_infer_alloc_token' kernel/sched/ext/ext.c:9314:15: sparse: sparse: undefined identifier '__builtin_infer_alloc_token' kernel/sched/ext/ext.c:9751:18: sparse: sparse: symbol 'scx_bpf_reenqueue_local___v2' was not declared. Should it be static? kernel/sched/ext/ext.c:10196:33: sparse: sparse: incompatible types in comparison expression (different address spaces): kernel/sched/ext/ext.c:10196:33: sparse: struct task_struct [noderef] __rcu * kernel/sched/ext/ext.c:10196:33: sparse: struct task_struct const * kernel/sched/build_policy.c: note: in included file: kernel/sched/ext/cid.c:53:22: sparse: sparse: undefined identifier '__builtin_infer_alloc_token' kernel/sched/ext/cid.c:53:22: sparse: sparse: undefined identifier '__builtin_infer_alloc_token' kernel/sched/ext/cid.c:53:22: sparse: sparse: undefined identifier '__builtin_infer_alloc_token' kernel/sched/ext/cid.c:54:22: sparse: sparse: undefined identifier '__builtin_infer_alloc_token' kernel/sched/ext/cid.c:54:22: sparse: sparse: undefined identifier '__builtin_infer_alloc_token' kernel/sched/ext/cid.c:54:22: sparse: sparse: undefined identifier '__builtin_infer_alloc_token' kernel/sched/ext/cid.c:55:20: sparse: sparse: undefined identifier '__builtin_infer_alloc_token' kernel/sched/ext/cid.c:55:20: sparse: sparse: undefined identifier '__builtin_infer_alloc_token' kernel/sched/ext/cid.c:55:20: sparse: sparse: undefined identifier '__builtin_infer_alloc_token' vim +5803 kernel/sched/ext/ext.c f0e1a0643a59bf kernel/sched/ext.c Tejun Heo 2024-06-18 5797 987e00035c0e68 kernel/sched/ext.c Tejun Heo 2025-10-22 5798 static void free_kick_syncs(void) 14c1da3895a116 kernel/sched/ext.c Tejun Heo 2025-10-08 5799 { 14c1da3895a116 kernel/sched/ext.c Tejun Heo 2025-10-08 5800 int cpu; 14c1da3895a116 kernel/sched/ext.c Tejun Heo 2025-10-08 5801 14c1da3895a116 kernel/sched/ext.c Tejun Heo 2025-10-08 5802 for_each_possible_cpu(cpu) { 987e00035c0e68 kernel/sched/ext.c Tejun Heo 2025-10-22 @5803 struct scx_kick_syncs **ksyncs = per_cpu_ptr(&scx_kick_syncs, cpu); 987e00035c0e68 kernel/sched/ext.c Tejun Heo 2025-10-22 5804 struct scx_kick_syncs *to_free; 14c1da3895a116 kernel/sched/ext.c Tejun Heo 2025-10-08 5805 987e00035c0e68 kernel/sched/ext.c Tejun Heo 2025-10-22 5806 to_free = rcu_replace_pointer(*ksyncs, NULL, true); 14c1da3895a116 kernel/sched/ext.c Tejun Heo 2025-10-08 5807 if (to_free) 348d3c587ac6fa kernel/sched/ext.c Zqiang 2025-11-17 5808 kvfree_rcu(to_free, rcu); 14c1da3895a116 kernel/sched/ext.c Tejun Heo 2025-10-08 5809 } 14c1da3895a116 kernel/sched/ext.c Tejun Heo 2025-10-08 5810 } 14c1da3895a116 kernel/sched/ext.c Tejun Heo 2025-10-08 5811 :::::: The code at line 5803 was first introduced by commit :::::: 987e00035c0e68bc0d44dec811cc9c26310b5bff sched_ext: Rename pnt_seq to kick_sync :::::: TO: Tejun Heo :::::: CC: Tejun Heo -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki