[android-common:android12-kiwi-5.10 303/303] kernel/cpu.c:1098:5: sparse: sparse: symbol '__pause_drain_rq' was not declared. Should it be static?

[android-common:android12-kiwi-5.10 303/303] kernel/cpu.c:1098:5: sparse: sparse: symbol '__pause_drain_rq' was not declared. Should it be static?

[kernel test robot]

tree:   https://android.googlesource.com/kernel/common android12-kiwi-5.10
head:   f012a641c30644ec5bf95cf64d8835854b997f86
commit: e19b8ce907a4ccc2f9dbeba218c50d1ff07fd321 [303/303] ANDROID: cpu/hotplug: add migration to paused_cpus
config: i386-randconfig-2301-20261105 (https://download.01.org/0day-ci/archive/20261105/202611050914.le3P7s3D-lkp@intel.com/config)
compiler: gcc-14 (Debian 14.2.0-19) 14.2.0
sparse: v0.6.5-rc1-21-g84ec0658
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20261105/202611050914.le3P7s3D-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/202611050914.le3P7s3D-lkp@intel.com/

sparse warnings: (new ones prefixed by >>)
>> kernel/cpu.c:1098:5: sparse: sparse: symbol '__pause_drain_rq' was not declared. Should it be static?
>> kernel/cpu.c:1118:6: sparse: sparse: symbol '__wait_drain_rq' was not declared. Should it be static?
   kernel/cpu.c:844:9: sparse: sparse: context imbalance in 'clear_tasks_mm_cpumask' - different lock contexts for basic block

vim +/__pause_drain_rq +1098 kernel/cpu.c

  1097	
> 1098	int __pause_drain_rq(struct cpumask *cpus)
  1099	{
  1100		unsigned int cpu;
  1101		int err = 0;
  1102	
  1103		/*
  1104		 * Disabling preemption avoids that one of the stopper, started from
  1105		 * sched_cpu_drain_rq(), blocks firing draining for the whole cpumask.
  1106		 */
  1107		preempt_disable();
  1108		for_each_cpu(cpu, cpus) {
  1109			err = sched_cpu_drain_rq(cpu);
  1110			if (err)
  1111				break;
  1112		}
  1113		preempt_enable();
  1114	
  1115		return err;
  1116	}
  1117	
> 1118	void __wait_drain_rq(struct cpumask *cpus)
  1119	{
  1120		unsigned int cpu;
  1121	
  1122		for_each_cpu(cpu, cpus)
  1123			sched_cpu_drain_rq_wait(cpu);
  1124	}
  1125	

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https://github.com/intel/lkp-tests/wiki