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Message-ID: <202410081000.M2qAN7W7-lkp@intel.com>
Date: Tue, 8 Oct 2024 11:03:30 +0800
From: kernel test robot <lkp@...el.com>
To: Peter Zijlstra <peterz@...radead.org>
Cc: oe-kbuild-all@...ts.linux.dev, linux-kernel@...r.kernel.org,
Ingo Molnar <mingo@...nel.org>
Subject: arch/arm64/include/asm/cmpxchg.h:171:1: sparse: sparse: cast
truncates bits from constant value (ffffffff becomes ff)
tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head: 87d6aab2389e5ce0197d8257d5f8ee965a67c4cd
commit: 0e34600ac9317dbe5f0a7bfaa3d7187d757572ed sched: Misc cleanups
date: 1 year, 1 month ago
config: arm64-randconfig-r133-20241007 (https://download.01.org/0day-ci/archive/20241008/202410081000.M2qAN7W7-lkp@intel.com/config)
compiler: aarch64-linux-gcc (GCC) 14.1.0
reproduce: (https://download.01.org/0day-ci/archive/20241008/202410081000.M2qAN7W7-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@...el.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202410081000.M2qAN7W7-lkp@intel.com/
sparse warnings: (new ones prefixed by >>)
kernel/sched/core.c:3721:17: sparse: expected struct sched_domain *[assigned] sd
kernel/sched/core.c:3721:17: sparse: got struct sched_domain [noderef] __rcu *parent
kernel/sched/core.c:3929:36: 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/core.c:3929:36: sparse: expected struct task_struct const *p
kernel/sched/core.c:3929:36: sparse: got struct task_struct [noderef] __rcu *curr
kernel/sched/core.c:9379:43: sparse: sparse: incorrect type in initializer (different address spaces) @@ expected struct task_struct *push_task @@ got struct task_struct [noderef] __rcu *curr @@
kernel/sched/core.c:9379:43: sparse: expected struct task_struct *push_task
kernel/sched/core.c:9379:43: sparse: got struct task_struct [noderef] __rcu *curr
kernel/sched/core.c:5625:38: sparse: sparse: incorrect type in initializer (different address spaces) @@ expected struct task_struct *curr @@ got struct task_struct [noderef] __rcu *curr @@
kernel/sched/core.c:5625:38: sparse: expected struct task_struct *curr
kernel/sched/core.c:5625:38: sparse: got struct task_struct [noderef] __rcu *curr
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: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: note: in included file:
kernel/sched/sched.h:1340:17: sparse: sparse: self-comparison always evaluates to true
kernel/sched/core.c:558:17: sparse: sparse: context imbalance in 'raw_spin_rq_lock_nested' - wrong count at exit
kernel/sched/sched.h:1340:17: sparse: sparse: self-comparison always evaluates to true
kernel/sched/core.c:584:23: sparse: sparse: context imbalance in 'raw_spin_rq_trylock' - wrong count at exit
kernel/sched/core.c:600:6: 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:796:11: sparse: sparse: dereference of noderef expression
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: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/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: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 <will.deacon@....com>
:::::: CC: Catalin Marinas <catalin.marinas@....com>
--
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