tree: https://gitee.com/openeuler/kernel.git OLK-6.6 head: 25097b0e8b7a08363a1cba931a5762548a3b0e16 commit: 00c32c5569d488b6c90f1695175577e35c17c21c [3098/3098] bpf-rvi: cpuacct: Add bpf_task_ca_cpuusage() kfunc config: x86_64-randconfig-001-20251104 (https://download.01.org/0day-ci/archive/20251104/202511042208.SaUQnITn-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/20251104/202511042208.SaUQnITn-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/202511042208.SaUQnITn-lkp@intel.com/ All warnings (new ones prefixed by >>): In file included from kernel/sched/build_utility.c:61:

...

kernel/sched/cpuacct.c:417:17: warning: no previous prototype for 'bpf_task_ca_cpuusage' [-Wmissing-prototypes] 417 | __bpf_kfunc u64 bpf_task_ca_cpuusage(struct task_struct *p) | ^~~~~~~~~~~~~~~~~~~~ kernel/sched/cpuacct.c:424:18: warning: no previous prototype for 'bpf_cpuacct_kcpustat_cpu_fetch' [-Wmissing-prototypes] 424 | __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_task_ca_cpuusage +417 kernel/sched/cpuacct.c 416

417 __bpf_kfunc u64 bpf_task_ca_cpuusage(struct task_struct *p) 418 { 419 if (!p) 420 return 0; 421 return cpuusage_read(task_css(p, cpuacct_cgrp_id), NULL); 422 } 423

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