tree: https://gitee.com/openeuler/kernel.git OLK-6.6 head: 43d8c124ec4624389b14d42595e5f0195e3e5a1d commit: 6ed308fc1d6f486c9e3c171b6b80c1c5f0f57df6 [2679/2679] bpf-rvi: cpuacct: Add bpf_cpuacct_kcpustat_cpu_fetch kfunc config: loongarch-allmodconfig (https://download.01.org/0day-ci/archive/20250814/202508142117.RpbHh5Ge-lkp@i...) compiler: clang version 19.1.7 (https://github.com/llvm/llvm-project cd708029e0b2869e80abe31ddb175f7c35361f90) reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20250814/202508142117.RpbHh5Ge-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/202508142117.RpbHh5Ge-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 function 'bpf_cpuacct_kcpustat_cpu_fetch' [-Wmissing-prototypes] 412 | __bpf_kfunc void bpf_cpuacct_kcpustat_cpu_fetch(struct kernel_cpustat *dst, | ^ kernel/sched/cpuacct.c:412:13: note: declare 'static' if the function is not intended to be used outside of this translation unit 412 | __bpf_kfunc void bpf_cpuacct_kcpustat_cpu_fetch(struct kernel_cpustat *dst, | ^ | static In file included from kernel/sched/build_utility.c:73: kernel/sched/debug.c:102:12: warning: no previous prototype for function 'is_prefer_numa' [-Wmissing-prototypes] 102 | int __weak is_prefer_numa(void) | ^ kernel/sched/debug.c:102:1: note: declare 'static' if the function is not intended to be used outside of this translation unit 102 | int __weak is_prefer_numa(void) | ^ | static In file included from kernel/sched/build_utility.c:113: kernel/sched/bpf_sched.c:186:17: warning: no previous prototype for function 'bpf_sched_entity_is_task' [-Wmissing-prototypes] 186 | __bpf_kfunc int bpf_sched_entity_is_task(struct sched_entity *se) | ^ kernel/sched/bpf_sched.c:186:13: note: declare 'static' if the function is not intended to be used outside of this translation unit 186 | __bpf_kfunc int bpf_sched_entity_is_task(struct sched_entity *se) | ^ | static kernel/sched/bpf_sched.c:194:33: warning: no previous prototype for function 'bpf_sched_entity_to_task' [-Wmissing-prototypes] 194 | __bpf_kfunc struct task_struct *bpf_sched_entity_to_task(struct sched_entity *se) | ^ kernel/sched/bpf_sched.c:194:13: note: declare 'static' if the function is not intended to be used outside of this translation unit 194 | __bpf_kfunc struct task_struct *bpf_sched_entity_to_task(struct sched_entity *se) | ^ | static kernel/sched/bpf_sched.c:202:18: warning: no previous prototype for function 'bpf_sched_tag_of_entity' [-Wmissing-prototypes] 202 | __bpf_kfunc long bpf_sched_tag_of_entity(struct sched_entity *se) | ^ kernel/sched/bpf_sched.c:202:13: note: declare 'static' if the function is not intended to be used outside of this translation unit 202 | __bpf_kfunc long bpf_sched_tag_of_entity(struct sched_entity *se) | ^ | static kernel/sched/bpf_sched.c:213:17: warning: no previous prototype for function 'bpf_sched_set_task_prefer_nid' [-Wmissing-prototypes] 213 | __bpf_kfunc int bpf_sched_set_task_prefer_nid(struct task_struct *task, int nid) | ^ kernel/sched/bpf_sched.c:213:13: note: declare 'static' if the function is not intended to be used outside of this translation unit 213 | __bpf_kfunc int bpf_sched_set_task_prefer_nid(struct task_struct *task, int nid) | ^ | static 6 warnings generated.

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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