Hi Vadim, kernel test robot noticed the following build errors: [auto build test ERROR on bpf-next/master] url: https://github.com/intel-lab-lkp/linux/commits/Vadim-Fedorenko/bpf-add-bpf_cpu_cycles_to_ns-helper/20241108-051950 base: https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next.git master patch link: https://lore.kernel.org/r/20241107211206.2814069-1-vadfed%40meta.com patch subject: [PATCH bpf-next v4 1/4] bpf: add bpf_get_cpu_cycles kfunc config: arm-randconfig-003-20241108 (https://download.01.org/0day-ci/archive/20241108/202411080912.TtCTNymw-lkp@xxxxxxxxx/config) compiler: clang version 15.0.7 (https://github.com/llvm/llvm-project 8dfdcc7b7bf66834a761bd8de445840ef68e4d1a) reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20241108/202411080912.TtCTNymw-lkp@xxxxxxxxx/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@xxxxxxxxx> | Closes: https://lore.kernel.org/oe-kbuild-all/202411080912.TtCTNymw-lkp@xxxxxxxxx/ All errors (new ones prefixed by >>): kernel/bpf/helpers.c:3029:18: warning: extra tokens at end of #ifdef directive [-Wextra-tokens] #ifdef IS_ENABLED(CONFIG_GENERIC_GETTIMEOFDAY) ^ // >> kernel/bpf/helpers.c:3032:9: error: call to undeclared function '__arch_get_hw_counter'; ISO C99 and later do not support implicit function declarations [-Werror,-Wimplicit-function-declaration] return __arch_get_hw_counter(1, NULL); ^ kernel/bpf/helpers.c:3128:18: warning: extra tokens at end of #ifdef directive [-Wextra-tokens] #ifdef IS_ENABLED(CONFIG_GENERIC_GETTIMEOFDAY) ^ // 2 warnings and 1 error generated. vim +/__arch_get_hw_counter +3032 kernel/bpf/helpers.c 3028 3029 #ifdef IS_ENABLED(CONFIG_GENERIC_GETTIMEOFDAY) 3030 __bpf_kfunc u64 bpf_get_cpu_cycles(void) 3031 { > 3032 return __arch_get_hw_counter(1, NULL); 3033 } 3034 #endif 3035 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki
