[anolis-intel-cloud:devel-6.6 50/50] kernel/sched/fair.c:9181:6: warning: no previous prototype for 'id_can_stop_tick'

[anolis-intel-cloud:devel-6.6 50/50] kernel/sched/fair.c:9181:6: warning: no previous prototype for 'id_can_stop_tick'

[kernel test robot]

tree:   https://gitee.com/anolis/intel-cloud-kernel.git devel-6.6
head:   5d719013902eb006756873427de3fc5cc5566531
commit: 4093033106109a3d632b6fec20885521c94cdeb0 [50/50] anolis: sched: push expellee tasks to a runnable cpu when expel starts
config: x86_64-allnoconfig-bpf (https://download.01.org/0day-ci/archive/20251218/202512181204.gLkrUhbU-lkp@intel.com/config)
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/20251218/202512181204.gLkrUhbU-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/202512181204.gLkrUhbU-lkp@intel.com/

All warnings (new ones prefixed by >>):

   kernel/sched/fair.c:4264:6: warning: no previous prototype for 'set_group_prefer_node' [-Wmissing-prototypes]
    4264 | void set_group_prefer_node(struct task_group *tg)
         |      ^~~~~~~~~~~~~~~~~~~~~
>> kernel/sched/fair.c:9181:6: warning: no previous prototype for 'id_can_stop_tick' [-Wmissing-prototypes]
    9181 | bool id_can_stop_tick(struct rq *rq)
         |      ^~~~~~~~~~~~~~~~


vim +/id_can_stop_tick +9181 kernel/sched/fair.c

  9172	
  9173	#if defined(CONFIG_NO_HZ_FULL) && defined(CONFIG_SMP)
  9174	bool id_can_stop_tick(struct rq *rq)
  9175	{
  9176		if (!sched_feat(ID_PUSH_EXPELLEE))
  9177			return true;
  9178		return !sched_idle_rq(rq);
  9179	}
  9180	#else
> 9181	bool id_can_stop_tick(struct rq *rq)
  9182	{
  9183		return true;
  9184	}
  9185	#endif
  9186	

-- 
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki