[android-common:android12-5.10-2021-09 8044/10848] kernel/sched/fair.c:4424:6: warning: no previous prototype for function 'set_next_entity'

[kernel test robot <lkp@intel.com>]

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tree:   https://android.googlesource.com/kernel/common android12-5.10-2021-09
head:   ece338aaa6b4bdf1c505c64f6b391e5cfabbfee5
commit: 54f66141a8834e27601fe594d68a97db01bb86b6 [8044/10848] ANDROID: sched: Add vendor hooks for sched.
config: x86_64-randconfig-r033-20210928 (attached as .config)
compiler: clang version 14.0.0 (https://github.com/llvm/llvm-project dc6e8dfdfe7efecfda318d43a06fae18b40eb498)
reproduce (this is a W=1 build):
        wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
        chmod +x ~/bin/make.cross
        git remote add android-common https://android.googlesource.com/kernel/common
        git fetch --no-tags android-common android12-5.10-2021-09
        git checkout 54f66141a8834e27601fe594d68a97db01bb86b6
        # save the attached .config to linux build tree
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 ARCH=x86_64 

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp@intel.com>

All warnings (new ones prefixed by >>):

>> kernel/sched/fair.c:4424:6: warning: no previous prototype for function 'set_next_entity' [-Wmissing-prototypes]
   void set_next_entity(struct cfs_rq *cfs_rq, struct sched_entity *se)
        ^
   kernel/sched/fair.c:4424:1: note: declare 'static' if the function is not intended to be used outside of this translation unit
   void set_next_entity(struct cfs_rq *cfs_rq, struct sched_entity *se)
   ^
   static 
   kernel/sched/fair.c:8365:19: warning: unused function 'check_misfit_status' [-Wunused-function]
   static inline int check_misfit_status(struct rq *rq, struct sched_domain *sd)
                     ^
   2 warnings generated.


vim +/set_next_entity +4424 kernel/sched/fair.c

  4423	
> 4424	void set_next_entity(struct cfs_rq *cfs_rq, struct sched_entity *se)
  4425	{
  4426		/* 'current' is not kept within the tree. */
  4427		if (se->on_rq) {
  4428			/*
  4429			 * Any task has to be enqueued before it get to execute on
  4430			 * a CPU. So account for the time it spent waiting on the
  4431			 * runqueue.
  4432			 */
  4433			update_stats_wait_end(cfs_rq, se);
  4434			__dequeue_entity(cfs_rq, se);
  4435			update_load_avg(cfs_rq, se, UPDATE_TG);
  4436		}
  4437	
  4438		update_stats_curr_start(cfs_rq, se);
  4439		cfs_rq->curr = se;
  4440	
  4441		/*
  4442		 * Track our maximum slice length, if the CPU's load is at
  4443		 * least twice that of our own weight (i.e. dont track it
  4444		 * when there are only lesser-weight tasks around):
  4445		 */
  4446		if (schedstat_enabled() &&
  4447		    rq_of(cfs_rq)->cfs.load.weight >= 2*se->load.weight) {
  4448			schedstat_set(se->statistics.slice_max,
  4449				max((u64)schedstat_val(se->statistics.slice_max),
  4450				    se->sum_exec_runtime - se->prev_sum_exec_runtime));
  4451		}
  4452	
  4453		se->prev_sum_exec_runtime = se->sum_exec_runtime;
  4454	}
  4455	EXPORT_SYMBOL_GPL(set_next_entity);
  4456	
  4457	

---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all(a)lists.01.org

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