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fmviesa009.fm.intel.com with ESMTP; 17 Sep 2026 09:49:33 -0700 Received: from kbuild by 462990a40a85 with local (Exim 4.98.2) (envelope-from ) id 1x7FIh-000000008F3-06hk; Thu, 17 Sep 2026 16:49:31 +0000 Date: Fri, 18 Sep 2026 00:49:12 +0800 From: kernel test robot To: Chen Yu Cc: oe-kbuild-all@lists.linux.dev, linux-kernel@vger.kernel.org, Peter Zijlstra , Tim Chen Subject: kernel/sched/topology.c:1037:21: sparse: sparse: incorrect type in assignment (different address spaces) Message-ID: <202609180028.7pOuivmX-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: 9b87fdc9af2fbfcdb5c24a64139685ef80f6573f commit: 5beff4f087277901444787d4b7af6b3a93c34c54 sched/cache: Fix cache aware scheduling enabling for multi LLCs system date: 4 months ago config: powerpc64-randconfig-r1306-20260917 (https://download.01.org/0day-ci/archive/20260918/202609180028.7pOuivmX-lkp@intel.com/config) compiler: clang version 24.0.0git (https://github.com/llvm/llvm-project 7252edd9aa82ef1c570ff6694ef7f4763a8a5d2f) sparse: v0.6.5-rc1 reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20260918/202609180028.7pOuivmX-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: 5beff4f08727 ("sched/cache: Fix cache aware scheduling enabling for multi LLCs system") | Reported-by: kernel test robot | Closes: https://lore.kernel.org/oe-kbuild-all/202609180028.7pOuivmX-lkp@intel.com/ sparse warnings: (new ones prefixed by >>) kernel/sched/build_utility.c: note: in included file: kernel/sched/debug.c:788:17: sparse: sparse: incorrect type in assignment (different address spaces) @@ expected struct sched_domain *[assigned] sd @@ got struct sched_domain [noderef] __rcu *parent @@ kernel/sched/debug.c:788:17: sparse: expected struct sched_domain *[assigned] sd kernel/sched/debug.c:788:17: sparse: got struct sched_domain [noderef] __rcu *parent kernel/sched/debug.c:1129:9: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected struct task_struct *tsk @@ got struct task_struct [noderef] __rcu *curr @@ kernel/sched/debug.c:1129:9: sparse: expected struct task_struct *tsk kernel/sched/debug.c:1129:9: sparse: got struct task_struct [noderef] __rcu *curr kernel/sched/debug.c:1129:9: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected struct task_struct *tsk @@ got struct task_struct [noderef] __rcu *curr @@ kernel/sched/debug.c:1129:9: sparse: expected struct task_struct *tsk kernel/sched/debug.c:1129:9: sparse: got struct task_struct [noderef] __rcu *curr kernel/sched/build_utility.c: note: in included file: kernel/sched/topology.c:118:56: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected struct sched_domain *sd @@ got struct sched_domain [noderef] __rcu *child @@ kernel/sched/topology.c:118:56: sparse: expected struct sched_domain *sd kernel/sched/topology.c:118:56: sparse: got struct sched_domain [noderef] __rcu *child kernel/sched/topology.c:137:60: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected struct sched_domain *sd @@ got struct sched_domain [noderef] __rcu *parent @@ kernel/sched/topology.c:137:60: sparse: expected struct sched_domain *sd kernel/sched/topology.c:137:60: sparse: got struct sched_domain [noderef] __rcu *parent kernel/sched/topology.c:160:20: sparse: sparse: incorrect type in assignment (different address spaces) @@ expected struct sched_domain *sd @@ got struct sched_domain [noderef] __rcu *parent @@ kernel/sched/topology.c:160:20: sparse: expected struct sched_domain *sd kernel/sched/topology.c:160:20: sparse: got struct sched_domain [noderef] __rcu *parent kernel/sched/topology.c:470:19: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected struct perf_domain *pd @@ got struct perf_domain [noderef] __rcu *pd @@ kernel/sched/topology.c:470:19: sparse: expected struct perf_domain *pd kernel/sched/topology.c:470:19: sparse: got struct perf_domain [noderef] __rcu *pd kernel/sched/topology.c:650:49: sparse: sparse: incorrect type in initializer (different address spaces) @@ expected struct sched_domain *parent @@ got struct sched_domain [noderef] __rcu *parent @@ kernel/sched/topology.c:650:49: sparse: expected struct sched_domain *parent kernel/sched/topology.c:650:49: sparse: got struct sched_domain [noderef] __rcu *parent kernel/sched/topology.c:737:50: sparse: sparse: incorrect type in initializer (different address spaces) @@ expected struct sched_domain *parent @@ got struct sched_domain [noderef] __rcu *parent @@ kernel/sched/topology.c:737:50: sparse: expected struct sched_domain *parent kernel/sched/topology.c:737:50: sparse: got struct sched_domain [noderef] __rcu *parent kernel/sched/topology.c:752:55: sparse: sparse: incorrect type in assignment (different address spaces) @@ expected struct sched_domain [noderef] __rcu *[noderef] __rcu child @@ got struct sched_domain *[assigned] tmp @@ kernel/sched/topology.c:752:55: sparse: expected struct sched_domain [noderef] __rcu *[noderef] __rcu child kernel/sched/topology.c:752:55: sparse: got struct sched_domain *[assigned] tmp kernel/sched/topology.c:765:29: sparse: sparse: incorrect type in assignment (different address spaces) @@ expected struct sched_domain *[assigned] tmp @@ got struct sched_domain [noderef] __rcu *parent @@ kernel/sched/topology.c:765:29: sparse: expected struct sched_domain *[assigned] tmp kernel/sched/topology.c:765:29: sparse: got struct sched_domain [noderef] __rcu *parent kernel/sched/topology.c:770:20: sparse: sparse: incorrect type in assignment (different address spaces) @@ expected struct sched_domain *sd @@ got struct sched_domain [noderef] __rcu *parent @@ kernel/sched/topology.c:770:20: sparse: expected struct sched_domain *sd kernel/sched/topology.c:770:20: sparse: got struct sched_domain [noderef] __rcu *parent kernel/sched/topology.c:803:13: sparse: sparse: incorrect type in assignment (different address spaces) @@ expected struct sched_domain *[assigned] tmp @@ got struct sched_domain [noderef] __rcu *sd @@ kernel/sched/topology.c:803:13: sparse: expected struct sched_domain *[assigned] tmp kernel/sched/topology.c:803:13: sparse: got struct sched_domain [noderef] __rcu *sd kernel/sched/topology.c:1030:38: sparse: sparse: incorrect type in initializer (different address spaces) @@ expected struct sched_domain *sdp @@ got struct sched_domain [noderef] __rcu *parent @@ kernel/sched/topology.c:1030:38: sparse: expected struct sched_domain *sdp kernel/sched/topology.c:1030:38: sparse: got struct sched_domain [noderef] __rcu *parent >> kernel/sched/topology.c:1037:21: sparse: sparse: incorrect type in assignment (different address spaces) @@ expected struct sched_domain *sdp @@ got struct sched_domain [noderef] __rcu *parent @@ kernel/sched/topology.c:1037:21: sparse: expected struct sched_domain *sdp kernel/sched/topology.c:1037:21: sparse: got struct sched_domain [noderef] __rcu *parent kernel/sched/topology.c:1184:70: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected struct sched_domain *sd @@ got struct sched_domain [noderef] __rcu *child @@ kernel/sched/topology.c:1184:70: sparse: expected struct sched_domain *sd kernel/sched/topology.c:1184:70: sparse: got struct sched_domain [noderef] __rcu *child kernel/sched/topology.c:1213:59: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected struct sched_domain *sd @@ got struct sched_domain [noderef] __rcu *child @@ kernel/sched/topology.c:1213:59: sparse: expected struct sched_domain *sd kernel/sched/topology.c:1213:59: sparse: got struct sched_domain [noderef] __rcu *child kernel/sched/topology.c:1259:57: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected struct sched_domain *sd @@ got struct sched_domain [noderef] __rcu *child @@ kernel/sched/topology.c:1259:57: sparse: expected struct sched_domain *sd kernel/sched/topology.c:1259:57: sparse: got struct sched_domain [noderef] __rcu *child kernel/sched/topology.c:1261:25: sparse: sparse: incorrect type in assignment (different address spaces) @@ expected struct sched_domain *sibling @@ got struct sched_domain [noderef] __rcu *child @@ kernel/sched/topology.c:1261:25: sparse: expected struct sched_domain *sibling kernel/sched/topology.c:1261:25: sparse: got struct sched_domain [noderef] __rcu *child kernel/sched/topology.c:1269:55: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected struct sched_domain *sd @@ got struct sched_domain [noderef] __rcu *child @@ kernel/sched/topology.c:1269:55: sparse: expected struct sched_domain *sd kernel/sched/topology.c:1269:55: sparse: got struct sched_domain [noderef] __rcu *child kernel/sched/topology.c:1271:25: sparse: sparse: incorrect type in assignment (different address spaces) @@ expected struct sched_domain *sibling @@ got struct sched_domain [noderef] __rcu *child @@ kernel/sched/topology.c:1271:25: sparse: expected struct sched_domain *sibling kernel/sched/topology.c:1271:25: sparse: got struct sched_domain [noderef] __rcu *child kernel/sched/topology.c:1341:62: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected struct sched_domain *sd @@ got struct sched_domain [noderef] __rcu *child @@ kernel/sched/topology.c:1341:62: sparse: expected struct sched_domain *sd kernel/sched/topology.c:1341:62: sparse: got struct sched_domain [noderef] __rcu *child kernel/sched/topology.c:1445:40: sparse: sparse: incorrect type in initializer (different address spaces) @@ expected struct sched_domain *child @@ got struct sched_domain [noderef] __rcu *child @@ kernel/sched/topology.c:1445:40: sparse: expected struct sched_domain *child kernel/sched/topology.c:1445:40: sparse: got struct sched_domain [noderef] __rcu *child kernel/sched/topology.c:1583:9: sparse: sparse: incorrect type in assignment (different address spaces) @@ expected struct sched_domain *[assigned] sd @@ got struct sched_domain [noderef] __rcu *parent @@ kernel/sched/topology.c:1583:9: sparse: expected struct sched_domain *[assigned] sd kernel/sched/topology.c:1583:9: sparse: got struct sched_domain [noderef] __rcu *parent kernel/sched/topology.c:1840:52: sparse: sparse: incorrect type in assignment (different address spaces) @@ expected struct sched_domain *[assigned] sd @@ got struct sched_domain [noderef] __rcu *parent @@ kernel/sched/topology.c:1840:52: sparse: expected struct sched_domain *[assigned] sd kernel/sched/topology.c:1840:52: sparse: got struct sched_domain [noderef] __rcu *parent kernel/sched/topology.c:1950:43: sparse: sparse: incorrect type in initializer (different address spaces) @@ expected struct sched_domain [noderef] __rcu *child @@ got struct sched_domain *child @@ kernel/sched/topology.c:1950:43: sparse: expected struct sched_domain [noderef] __rcu *child kernel/sched/topology.c:1950:43: sparse: got struct sched_domain *child kernel/sched/topology.c:2749:31: sparse: sparse: incorrect type in assignment (different address spaces) @@ expected struct sched_domain [noderef] __rcu *parent @@ got struct sched_domain *sd @@ kernel/sched/topology.c:2749:31: sparse: expected struct sched_domain [noderef] __rcu *parent kernel/sched/topology.c:2749:31: sparse: got struct sched_domain *sd kernel/sched/topology.c:2877:16: sparse: sparse: incorrect type in assignment (different address spaces) @@ expected struct sched_domain *parent @@ got struct sched_domain [noderef] __rcu *[noderef] __rcu parent @@ kernel/sched/topology.c:2877:16: sparse: expected struct sched_domain *parent kernel/sched/topology.c:2877:16: sparse: got struct sched_domain [noderef] __rcu *[noderef] __rcu parent kernel/sched/topology.c:2879:24: sparse: sparse: incorrect type in assignment (different address spaces) @@ expected struct sched_domain *parent @@ got struct sched_domain [noderef] __rcu *parent @@ kernel/sched/topology.c:2879:24: sparse: expected struct sched_domain *parent kernel/sched/topology.c:2879:24: sparse: got struct sched_domain [noderef] __rcu *parent kernel/sched/topology.c:2884:16: sparse: sparse: incorrect type in assignment (different address spaces) @@ expected struct sched_domain *parent @@ got struct sched_domain [noderef] __rcu *parent @@ kernel/sched/topology.c:2884:16: sparse: expected struct sched_domain *parent kernel/sched/topology.c:2884:16: sparse: got struct sched_domain [noderef] __rcu *parent kernel/sched/topology.c:2889:24: sparse: sparse: incorrect type in assignment (different address spaces) @@ expected struct sched_domain *parent @@ got struct sched_domain [noderef] __rcu *parent @@ kernel/sched/topology.c:2889:24: sparse: expected struct sched_domain *parent kernel/sched/topology.c:2889:24: sparse: got struct sched_domain [noderef] __rcu *parent kernel/sched/topology.c:3018:57: sparse: sparse: incorrect type in assignment (different address spaces) @@ expected struct sched_domain *[assigned] sd @@ got struct sched_domain [noderef] __rcu *parent @@ kernel/sched/topology.c:3018:57: sparse: expected struct sched_domain *[assigned] sd kernel/sched/topology.c:3018:57: sparse: got struct sched_domain [noderef] __rcu *parent kernel/sched/topology.c:3037:28: sparse: sparse: incorrect type in assignment (different address spaces) @@ expected struct sched_domain *[assigned] sd @@ got struct sched_domain [noderef] __rcu *parent @@ kernel/sched/topology.c:3037:28: sparse: expected struct sched_domain *[assigned] sd kernel/sched/topology.c:3037:28: sparse: got struct sched_domain [noderef] __rcu *parent kernel/sched/topology.c:3067:57: sparse: sparse: incorrect type in assignment (different address spaces) @@ expected struct sched_domain *[assigned] sd @@ got struct sched_domain [noderef] __rcu *parent @@ kernel/sched/topology.c:3067:57: sparse: expected struct sched_domain *[assigned] sd kernel/sched/topology.c:3067:57: sparse: got struct sched_domain [noderef] __rcu *parent kernel/sched/build_utility.c: note: in included file: kernel/sched/sched.h:2401:25: sparse: sparse: incompatible types in comparison expression (different address spaces): kernel/sched/sched.h:2401:25: sparse: struct task_struct [noderef] __rcu * kernel/sched/sched.h:2401:25: sparse: struct task_struct * vim +1037 kernel/sched/topology.c 1010 1011 /* 1012 * Return true if @sd belongs to an LLC group whose enclosing 1013 * partition spans more than one LLC. @sd must be the topmost 1014 * SD_SHARE_LLC domain. 1015 * 1016 * Any duplicated parent domains with the same span as @sd are 1017 * skipped: before cpu_attach_domain() degeneration these still 1018 * exist, after degeneration the loop is a no-op. This makes the 1019 * helper usable both during sched domain build and against an 1020 * already-attached domain tree. 1021 * 1022 * Note: For systems with a single LLC per node, cache-aware 1023 * scheduling is still enabled when multiple nodes exist. 1024 * However, NUMA balancing decisions take precedence over 1025 * cache-aware scheduling. Conversely, if there is only one 1026 * LLC per partition, cache-aware scheduling should be disabled. 1027 */ 1028 static bool sd_in_multi_llcs(struct sched_domain *sd) 1029 { 1030 struct sched_domain *sdp = sd->parent; 1031 1032 /* it does not make sense to aggregate to 1 CPU */ 1033 if (sd->span_weight == 1) 1034 return false; 1035 1036 while (sdp && sdp->span_weight == sd->span_weight) > 1037 sdp = sdp->parent; 1038 1039 return !!sdp; 1040 } 1041 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki