[bytedance:5.15-velinux 0/146] mm/oom_kill.c:318:14: warning: no previous prototype for function 'bpf_oom_evaluate_task'

[bytedance:5.15-velinux 0/146] mm/oom_kill.c:318:14: warning: no previous prototype for function 'bpf_oom_evaluate_task'

[kernel test robot]

Hi Chuyi,

FYI, the error/warning still remains.

tree:   https://github.com/bytedance/kernel.git 5.15-velinux
head:   c73db7ebb024f59416db0cf136dc2d4b9dbc3695
commit: 9cffac2e6f2df386d7cf4c2cf90d5fe2c1d6b793 [0/146] bytedance: mm, oom: Introduce bpf_oom_evaluate_task
config: x86_64-rhel-9.4-rust (https://download.01.org/0day-ci/archive/20250922/202509222003.mgTDb3Ck-lkp@intel.com/config)
compiler: clang version 22.0.0git (https://github.com/llvm/llvm-project cafc064fc7a96b3979a023ddae1da2b499d6c954)
rustc: rustc 1.58.0 (02072b482 2022-01-11)
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20250922/202509222003.mgTDb3Ck-lkp@intel.com/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@intel.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202509222003.mgTDb3Ck-lkp@intel.com/

All warnings (new ones prefixed by >>):

>> mm/oom_kill.c:318:14: warning: no previous prototype for function 'bpf_oom_evaluate_task' [-Wmissing-prototypes]
     318 | noinline int bpf_oom_evaluate_task(struct task_struct *task, struct oom_control *oc)
         |              ^
   mm/oom_kill.c:318:10: note: declare 'static' if the function is not intended to be used outside of this translation unit
     318 | noinline int bpf_oom_evaluate_task(struct task_struct *task, struct oom_control *oc)
         |          ^
         |          static 
   1 warning generated.


vim +/bpf_oom_evaluate_task +318 mm/oom_kill.c

   317	
 > 318	noinline int bpf_oom_evaluate_task(struct task_struct *task, struct oom_control *oc)
   319	{
   320		return NO_BPF_POLICY;
   321	}
   322	ALLOW_ERROR_INJECTION(bpf_oom_evaluate_task, ERRNO);
   323	

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