tree: https://gitee.com/openeuler/kernel.git OLK-6.6 head: a29fc03bd0ddaf7388cf31604ef5bd9807585109 commit: 70780f6924c9b58d5a745d4e20e08e9ace28e711 [3098/3098] bpf-rvi: proc: add bpf_get_{idle,iowait}_time kfunc config: x86_64-randconfig-001-20251104 (https://download.01.org/0day-ci/archive/20251104/202511041056.Im8VvChb-lkp@i...) compiler: gcc-14 (Debian 14.2.0-19) 14.2.0 reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20251104/202511041056.Im8VvChb-lkp@i...) 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/202511041056.Im8VvChb-lkp@intel.com/ All warnings (new ones prefixed by >>):

...

fs/proc/stat.c:224:17: warning: no previous prototype for 'bpf_get_idle_time' [-Wmissing-prototypes] 224 | __bpf_kfunc u64 bpf_get_idle_time(struct kernel_cpustat *kcs, int cpu) | ^~~~~~~~~~~~~~~~~ fs/proc/stat.c:229:17: warning: no previous prototype for 'bpf_get_iowait_time' [-Wmissing-prototypes] 229 | __bpf_kfunc u64 bpf_get_iowait_time(struct kernel_cpustat *kcs, int cpu) | ^~~~~~~~~~~~~~~~~~~

vim +/bpf_get_idle_time +224 fs/proc/stat.c 222 223 #ifdef CONFIG_BPF_RVI

224 __bpf_kfunc u64 bpf_get_idle_time(struct kernel_cpustat *kcs, int cpu) 225 { 226 return get_idle_time(kcs, cpu); 227 } 228 229 __bpf_kfunc u64 bpf_get_iowait_time(struct kernel_cpustat *kcs, int cpu) 230 { 231 return get_iowait_time(kcs, cpu); 232 } 233

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