CC: kbuild-...@lists.01.org BCC: l...@intel.com TO: Yury Norov <yury.no...@gmail.com>
tree: https://github.com/norov/linux fns head: 1df9509fd92a58cb37e9a419235823bbb13367de commit: 0e862838f290147ea9c16db852d8d494b552d38d [4/23] bitops: unify non-atomic bitops prototypes across architectures :::::: branch date: 20 hours ago :::::: commit date: 2 days ago config: microblaze-randconfig-m031-20220629 (https://download.01.org/0day-ci/archive/20220703/202207030120.dbcgbr9n-...@intel.com/config) compiler: microblaze-linux-gcc (GCC) 11.3.0 If you fix the issue, kindly add following tag where applicable Reported-by: kernel test robot <l...@intel.com> Reported-by: Dan Carpenter <dan.carpen...@oracle.com> New smatch warnings: include/asm-generic/bitops/generic-non-atomic.h:127 generic_test_bit() warn: shift has higher precedence than mask include/asm-generic/bitops/generic-non-atomic.h:127 generic_test_bit() warn: ignoring unreachable code. include/asm-generic/bitops/generic-non-atomic.h:127 generic_test_bit() warn: shift has higher precedence than mask include/asm-generic/bitops/generic-non-atomic.h:127 generic_test_bit() warn: shift has higher precedence than mask include/asm-generic/bitops/generic-non-atomic.h:127 generic_test_bit() warn: ignoring unreachable code. include/asm-generic/bitops/generic-non-atomic.h:127 generic_test_bit() warn: shift has higher precedence than mask include/asm-generic/bitops/generic-non-atomic.h:127 generic_test_bit() warn: shift has higher precedence than mask include/asm-generic/bitops/generic-non-atomic.h:127 generic_test_bit() warn: ignoring unreachable code. include/asm-generic/bitops/generic-non-atomic.h:127 generic_test_bit() warn: shift has higher precedence than mask Old smatch warnings: arch/microblaze/include/asm/thread_info.h:85 current_thread_info() error: uninitialized symbol 'sp'. vim +127 include/asm-generic/bitops/generic-non-atomic.h 21bb8af513d35c Alexander Lobakin 2022-06-24 113 21bb8af513d35c Alexander Lobakin 2022-06-24 114 /** 21bb8af513d35c Alexander Lobakin 2022-06-24 115 * generic_test_bit - Determine whether a bit is set 21bb8af513d35c Alexander Lobakin 2022-06-24 116 * @nr: bit number to test 21bb8af513d35c Alexander Lobakin 2022-06-24 117 * @addr: Address to start counting from 21bb8af513d35c Alexander Lobakin 2022-06-24 118 */ 0e862838f29014 Alexander Lobakin 2022-06-24 119 static __always_inline bool 0e862838f29014 Alexander Lobakin 2022-06-24 120 generic_test_bit(unsigned long nr, const volatile unsigned long *addr) 21bb8af513d35c Alexander Lobakin 2022-06-24 121 { 21bb8af513d35c Alexander Lobakin 2022-06-24 122 /* 21bb8af513d35c Alexander Lobakin 2022-06-24 123 * Unlike the bitops with the '__' prefix above, this one *is* atomic, 21bb8af513d35c Alexander Lobakin 2022-06-24 124 * so `volatile` must always stay here with no cast-aways. See 21bb8af513d35c Alexander Lobakin 2022-06-24 125 * `Documentation/atomic_bitops.txt` for the details. 21bb8af513d35c Alexander Lobakin 2022-06-24 126 */ 21bb8af513d35c Alexander Lobakin 2022-06-24 @127 return 1UL & (addr[BIT_WORD(nr)] >> (nr & (BITS_PER_LONG-1))); 21bb8af513d35c Alexander Lobakin 2022-06-24 128 } 21bb8af513d35c Alexander Lobakin 2022-06-24 129 :::::: The code at line 127 was first introduced by commit :::::: 21bb8af513d35c005c401706030f4eb469538d1d bitops: always define asm-generic non-atomic bitops :::::: TO: Alexander Lobakin <alexandr.loba...@intel.com> :::::: CC: Yury Norov <yury.no...@gmail.com> -- 0-DAY CI Kernel Test Service https://01.org/lkp _______________________________________________ kbuild mailing list -- kbuild@lists.01.org To unsubscribe send an email to kbuild-le...@lists.01.org
