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ESMTP; 18 Nov 2023 18:40:35 -0800 Received: from kbuild by b8de5498638e with local (Exim 4.96) (envelope-from ) id 1r4Xjc-0004Yt-2B; Sun, 19 Nov 2023 02:40:32 +0000 Date: Sun, 19 Nov 2023 10:40:10 +0800 From: kernel test robot To: Peter Zijlstra Cc: oe-kbuild-all@lists.linux.dev, linux-kernel@vger.kernel.org, Ingo Molnar Subject: arch/arm64/include/asm/cmpxchg.h:171:1: sparse: sparse: cast truncates bits from constant value (ffffffff becomes ff) Message-ID: <202311191039.4P3HiiKh-lkp@intel.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master head: b8f1fa2419c19c81bc386a6b350879ba54a573e1 commit: 0e34600ac9317dbe5f0a7bfaa3d7187d757572ed sched: Misc cleanups date: 10 weeks ago config: arm64-randconfig-r122-20231119 (https://download.01.org/0day-ci/archive/20231119/202311191039.4P3HiiKh-lkp@intel.com/config) compiler: aarch64-linux-gcc (GCC) 13.2.0 reproduce: (https://download.01.org/0day-ci/archive/20231119/202311191039.4P3HiiKh-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 | Closes: https://lore.kernel.org/oe-kbuild-all/202311191039.4P3HiiKh-lkp@intel.com/ sparse warnings: (new ones prefixed by >>) kernel/sched/core.c:6298:46: sparse: struct task_struct * kernel/sched/core.c:6298:46: sparse: struct task_struct [noderef] __rcu * kernel/sched/core.c:6358:9: 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:6358:9: sparse: expected struct sched_domain *[assigned] sd kernel/sched/core.c:6358:9: sparse: got struct sched_domain [noderef] __rcu *parent kernel/sched/core.c:6569:14: 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:6569:14: sparse: expected struct task_struct *prev kernel/sched/core.c:6569:14: sparse: got struct task_struct [noderef] __rcu *curr kernel/sched/core.c:7095:17: sparse: sparse: incompatible types in comparison expression (different address spaces): kernel/sched/core.c:7095:17: sparse: struct task_struct * kernel/sched/core.c:7095:17: sparse: struct task_struct [noderef] __rcu * kernel/sched/core.c:7310:22: sparse: sparse: incompatible types in comparison expression (different address spaces): kernel/sched/core.c:7310:22: sparse: struct task_struct [noderef] __rcu * kernel/sched/core.c:7310:22: sparse: struct task_struct * kernel/sched/core.c:7357:48: sparse: sparse: incompatible types in comparison expression (different address spaces): kernel/sched/core.c:7357:48: sparse: struct task_struct [noderef] __rcu * kernel/sched/core.c:7357:48: sparse: struct task_struct * kernel/sched/core.c:11435:25: 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:11435:25: sparse: expected struct task_struct *p kernel/sched/core.c:11435:25: sparse: got struct task_struct [noderef] __rcu *curr kernel/sched/core.c:338:9: sparse: sparse: context imbalance in 'sched_core_lock' - different lock contexts for basic block kernel/sched/core.c:348:17: sparse: sparse: context imbalance in 'sched_core_unlock' - unexpected unlock kernel/sched/core.c:551:6: sparse: sparse: context imbalance in 'raw_spin_rq_lock_nested' - wrong count at exit kernel/sched/core.c:576:6: sparse: sparse: context imbalance in 'raw_spin_rq_trylock' - wrong count at exit kernel/sched/core.c: note: in included file: kernel/sched/sched.h:1235:30: sparse: sparse: context imbalance in 'raw_spin_rq_unlock' - unexpected unlock kernel/sched/core.c:638:36: sparse: sparse: context imbalance in '__task_rq_lock' - wrong count at exit kernel/sched/core.c:679:36: sparse: sparse: context imbalance in 'task_rq_lock' - wrong count at exit kernel/sched/core.c: note: in included file: kernel/sched/pelt.h:97:13: 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:97:13: sparse: expected struct task_struct const *p kernel/sched/pelt.h:97:13: sparse: got struct task_struct [noderef] __rcu *curr kernel/sched/core.c:1086:5: sparse: sparse: context imbalance in 'get_nohz_timer_target' - wrong count at exit kernel/sched/core.c:1481:13: sparse: sparse: context imbalance in 'uclamp_update_util_min_rt_default' - wrong count at exit kernel/sched/core.c:1775:13: sparse: sparse: context imbalance in 'uclamp_update_root_tg' - wrong count at exit kernel/sched/core.c:1813:9: sparse: sparse: context imbalance in 'uclamp_sync_util_min_rt_default' - wrong count at exit kernel/sched/core.c:2217:33: sparse: sparse: dereference of noderef expression kernel/sched/core.c:2218:19: sparse: sparse: dereference of noderef expression kernel/sched/core.c:2219:18: sparse: sparse: dereference of noderef expression kernel/sched/core.c:2272:15: sparse: sparse: context imbalance in 'wait_task_inactive' - different lock contexts for basic block kernel/sched/core.c: note: in included file: kernel/sched/sched.h:2138:25: sparse: sparse: incompatible types in comparison expression (different address spaces): kernel/sched/sched.h:2138:25: sparse: struct task_struct [noderef] __rcu * kernel/sched/sched.h:2138:25: sparse: struct task_struct * kernel/sched/sched.h:2302:9: sparse: sparse: incompatible types in comparison expression (different address spaces): kernel/sched/sched.h:2302:9: sparse: struct task_struct [noderef] __rcu * kernel/sched/sched.h:2302:9: sparse: struct task_struct * kernel/sched/core.c:2192:38: sparse: sparse: incompatible types in comparison expression (different address spaces): kernel/sched/core.c:2192:38: sparse: struct task_struct [noderef] __rcu * kernel/sched/core.c:2192:38: sparse: struct task_struct const * kernel/sched/sched.h:2138:25: sparse: sparse: incompatible types in comparison expression (different address spaces): kernel/sched/sched.h:2138:25: sparse: struct task_struct [noderef] __rcu * kernel/sched/sched.h:2138:25: sparse: struct task_struct * kernel/sched/sched.h:2302:9: sparse: sparse: incompatible types in comparison expression (different address spaces): kernel/sched/sched.h:2302:9: sparse: struct task_struct [noderef] __rcu * kernel/sched/sched.h:2302:9: sparse: struct task_struct * kernel/sched/sched.h:2302:9: sparse: sparse: incompatible types in comparison expression (different address spaces): kernel/sched/sched.h:2302:9: sparse: struct task_struct [noderef] __rcu * kernel/sched/sched.h:2302:9: sparse: struct task_struct * kernel/sched/sched.h:2302:9: sparse: sparse: incompatible types in comparison expression (different address spaces): kernel/sched/sched.h:2302:9: sparse: struct task_struct [noderef] __rcu * kernel/sched/sched.h:2302:9: sparse: struct task_struct * kernel/sched/sched.h:2302:9: sparse: sparse: incompatible types in comparison expression (different address spaces): kernel/sched/sched.h:2302:9: sparse: struct task_struct [noderef] __rcu * kernel/sched/sched.h:2302:9: sparse: struct task_struct * kernel/sched/sched.h:2138:25: sparse: sparse: incompatible types in comparison expression (different address spaces): kernel/sched/sched.h:2138:25: sparse: struct task_struct [noderef] __rcu * kernel/sched/sched.h:2138:25: sparse: struct task_struct * kernel/sched/sched.h:2302:9: sparse: sparse: incompatible types in comparison expression (different address spaces): kernel/sched/sched.h:2302:9: sparse: struct task_struct [noderef] __rcu * kernel/sched/sched.h:2302:9: sparse: struct task_struct * kernel/sched/sched.h:2138:25: sparse: sparse: incompatible types in comparison expression (different address spaces): kernel/sched/sched.h:2138:25: sparse: struct task_struct [noderef] __rcu * kernel/sched/sched.h:2138:25: sparse: struct task_struct * kernel/sched/sched.h:2302:9: sparse: sparse: incompatible types in comparison expression (different address spaces): kernel/sched/sched.h:2302:9: sparse: struct task_struct [noderef] __rcu * kernel/sched/sched.h:2302:9: sparse: struct task_struct * kernel/sched/sched.h:2138:25: sparse: sparse: incompatible types in comparison expression (different address spaces): kernel/sched/sched.h:2138:25: sparse: struct task_struct [noderef] __rcu * kernel/sched/sched.h:2138:25: sparse: struct task_struct * kernel/sched/sched.h:2302:9: sparse: sparse: incompatible types in comparison expression (different address spaces): kernel/sched/sched.h:2302:9: sparse: struct task_struct [noderef] __rcu * kernel/sched/sched.h:2302:9: sparse: struct task_struct * kernel/sched/core.c:8241:5: sparse: sparse: context imbalance in 'dl_task_check_affinity' - wrong count at exit kernel/sched/core.c:8345:44: sparse: sparse: context imbalance in 'sched_setaffinity' - different lock contexts for basic block kernel/sched/core.c:8407:6: sparse: sparse: context imbalance in 'sched_getaffinity' - wrong count at exit kernel/sched/core.c:8570:28: sparse: sparse: context imbalance in '__cond_resched_lock' - unexpected unlock kernel/sched/core.c:8588:17: sparse: sparse: context imbalance in '__cond_resched_rwlock_read' - unexpected unlock kernel/sched/core.c:8606:17: sparse: sparse: context imbalance in '__cond_resched_rwlock_write' - unexpected unlock kernel/sched/core.c: note: in included file (through include/linux/mmu_context.h, include/linux/cpuset.h): arch/arm64/include/asm/mmu_context.h:252:22: sparse: sparse: self-comparison always evaluates to true kernel/sched/core.c: note: in included file: kernel/sched/sched.h:2138:25: sparse: sparse: incompatible types in comparison expression (different address spaces): kernel/sched/sched.h:2138:25: sparse: struct task_struct [noderef] __rcu * kernel/sched/sched.h:2138:25: sparse: struct task_struct * kernel/sched/sched.h:2302:9: sparse: sparse: incompatible types in comparison expression (different address spaces): kernel/sched/sched.h:2302:9: sparse: struct task_struct [noderef] __rcu * kernel/sched/sched.h:2302:9: sparse: struct task_struct * kernel/sched/core.c:11600:5: sparse: sparse: context imbalance in '__sched_mm_cid_migrate_from_fetch_cid' - different lock contexts for basic block kernel/sched/core.c: note: in included file (through arch/arm64/include/asm/atomic.h, include/linux/atomic.h, include/linux/jump_label.h, ...): >> arch/arm64/include/asm/cmpxchg.h:171:1: sparse: sparse: cast truncates bits from constant value (ffffffff becomes ff) >> arch/arm64/include/asm/cmpxchg.h:171:1: sparse: sparse: cast truncates bits from constant value (ffffffff becomes ffff) >> arch/arm64/include/asm/cmpxchg.h:171:1: sparse: sparse: cast truncates bits from constant value (ffffffff becomes ff) >> arch/arm64/include/asm/cmpxchg.h:171:1: sparse: sparse: cast truncates bits from constant value (ffffffff becomes ffff) >> arch/arm64/include/asm/cmpxchg.h:171:1: sparse: sparse: cast truncates bits from constant value (ffffffff becomes ff) >> arch/arm64/include/asm/cmpxchg.h:171:1: sparse: sparse: cast truncates bits from constant value (ffffffff becomes ffff) >> arch/arm64/include/asm/cmpxchg.h:171:1: sparse: sparse: cast truncates bits from constant value (ffffffff becomes ff) >> arch/arm64/include/asm/cmpxchg.h:171:1: sparse: sparse: cast truncates bits from constant value (ffffffff becomes ffff) >> arch/arm64/include/asm/cmpxchg.h:171:1: sparse: sparse: cast truncates bits from constant value (ffffffff becomes ff) >> arch/arm64/include/asm/cmpxchg.h:171:1: sparse: sparse: cast truncates bits from constant value (ffffffff becomes ffff) vim +171 arch/arm64/include/asm/cmpxchg.h 10b663aef1c247 Catalin Marinas 2012-03-05 167 305d454aaa292b Will Deacon 2015-10-08 168 __CMPXCHG_GEN() 305d454aaa292b Will Deacon 2015-10-08 169 __CMPXCHG_GEN(_acq) 305d454aaa292b Will Deacon 2015-10-08 170 __CMPXCHG_GEN(_rel) 305d454aaa292b Will Deacon 2015-10-08 @171 __CMPXCHG_GEN(_mb) 10b663aef1c247 Catalin Marinas 2012-03-05 172 :::::: The code at line 171 was first introduced by commit :::::: 305d454aaa292be3a09a9d674e6c35f5b4249a13 arm64: atomics: implement native {relaxed, acquire, release} atomics :::::: TO: Will Deacon :::::: CC: Catalin Marinas -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki