Messages in this thread | | | Date | Mon, 6 Nov 2023 06:57:31 +0800 | From | kernel test robot <> | Subject | arch/arm64/include/asm/cmpxchg.h:171:1: sparse: sparse: cast truncates bits from constant value (dead00000000eb9f becomes 9f) |
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tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master head: 77fa2fbe87fc605c4bfa87dff87be9bfded0e9a3 commit: c3c510ce431cd99fa10dcd50d995c8e89330ee5b bpf: Add 'owner' field to bpf_{list,rb}_node date: 4 months ago config: arm64-randconfig-r122-20231102 (https://download.01.org/0day-ci/archive/20231106/202311060641.9xoaUdHJ-lkp@intel.com/config) compiler: aarch64-linux-gcc (GCC) 13.2.0 reproduce: (https://download.01.org/0day-ci/archive/20231106/202311060641.9xoaUdHJ-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@intel.com> | Closes: https://lore.kernel.org/oe-kbuild-all/202311060641.9xoaUdHJ-lkp@intel.com/
sparse warnings: (new ones prefixed by >>) kernel/bpf/helpers.c: note: in included file (through arch/arm64/include/asm/atomic.h, include/linux/atomic.h, include/asm-generic/bitops/atomic.h, ...): >> arch/arm64/include/asm/cmpxchg.h:171:1: sparse: sparse: cast truncates bits from constant value (dead00000000eb9f becomes 9f) >> arch/arm64/include/asm/cmpxchg.h:171:1: sparse: sparse: cast truncates bits from constant value (dead00000000eb9f becomes eb9f) >> arch/arm64/include/asm/cmpxchg.h:171:1: sparse: sparse: cast truncates bits from constant value (dead00000000eb9f becomes eb9f) >> arch/arm64/include/asm/cmpxchg.h:171:1: sparse: sparse: cast truncates bits from constant value (dead00000000eb9f becomes 9f) >> arch/arm64/include/asm/cmpxchg.h:171:1: sparse: sparse: cast truncates bits from constant value (dead00000000eb9f becomes eb9f) >> arch/arm64/include/asm/cmpxchg.h:171:1: sparse: sparse: cast truncates bits from constant value (dead00000000eb9f becomes eb9f) kernel/bpf/helpers.c:2419:18: sparse: sparse: context imbalance in 'bpf_rcu_read_lock' - wrong count at exit kernel/bpf/helpers.c:2424:18: sparse: sparse: context imbalance in 'bpf_rcu_read_unlock' - unexpected unlock
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@arm.com> :::::: CC: Catalin Marinas <catalin.marinas@arm.com>
-- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki
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