[android-common:android-mainline 15/15] kernel/sched/core.c:4976:6: warning: no previous declaration for '__balance_callbacks'

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

tree:   https://android.googlesource.com/kernel/common android-mainline
head:   587d5d6afd93c277408eeee695917e92a67e07b1
commit: 51ba045c81b3d00225cfe6866e5fd18a1faddf30 [15/15] ANDROID: GKI: vendor code needs __balance_callbacks access
config: x86_64-randconfig-r032-20230831 (https://download.01.org/0day-ci/archive/20230831/202308311332.pjrxmlxb-lkp@intel.com/config)
compiler: gcc-7 (Ubuntu 7.5.0-6ubuntu2) 7.5.0
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20230831/202308311332.pjrxmlxb-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/202308311332.pjrxmlxb-lkp@intel.com/

All warnings (new ones prefixed by >>):

>> kernel/sched/core.c:4976:6: warning: no previous declaration for '__balance_callbacks' [-Wmissing-declarations]
    void __balance_callbacks(struct rq *rq)
         ^~~~~~~~~~~~~~~~~~~


vim +/__balance_callbacks +4976 kernel/sched/core.c

  4975	
> 4976	void __balance_callbacks(struct rq *rq)
  4977	{
  4978		do_balance_callbacks(rq, __splice_balance_callbacks(rq, false));
  4979	}
  4980	EXPORT_SYMBOL_GPL(__balance_callbacks);
  4981	

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