tree: https://gitee.com/openeuler/kernel.git OLK-6.6 head: 9b7e6f8aa58e8c131766ecd2c6eb9bd1dce85ca7 commit: 6ed308fc1d6f486c9e3c171b6b80c1c5f0f57df6 [3098/3098] bpf-rvi: cpuacct: Add bpf_cpuacct_kcpustat_cpu_fetch kfunc config: x86_64-randconfig-001-20251104 (https://download.01.org/0day-ci/archive/20251104/202511041308.wdMKtoD8-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/20251104/202511041308.wdMKtoD8-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/202511041308.wdMKtoD8-lkp@intel.com/ All warnings (new ones prefixed by >>): In file included from kernel/sched/build_utility.c:61:

...

kernel/sched/cpuacct.c:412:18: warning: no previous prototype for 'bpf_cpuacct_kcpustat_cpu_fetch' [-Wmissing-prototypes] 412 | __bpf_kfunc void bpf_cpuacct_kcpustat_cpu_fetch(struct kernel_cpustat *dst, | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ In file included from kernel/sched/build_utility.c:73: kernel/sched/debug.c:102:12: warning: no previous prototype for 'is_prefer_numa' [-Wmissing-prototypes] 102 | int __weak is_prefer_numa(void) | ^~~~~~~~~~~~~~

vim +/bpf_cpuacct_kcpustat_cpu_fetch +412 kernel/sched/cpuacct.c 410 411 #ifdef CONFIG_BPF_RVI

412 __bpf_kfunc void bpf_cpuacct_kcpustat_cpu_fetch(struct kernel_cpustat *dst, 413 struct cpuacct *ca, int cpu) 414 { 415 memcpy(dst, per_cpu_ptr(ca->cpustat, cpu), sizeof(struct kernel_cpustat)); 416 } 417

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