[android-common:android-4.19-stable 14965/29506] kernel/sched/stubs.c:8:5: warning: no previous prototype for 'sched_isolate_cpu'

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

Hi Quentin,

FYI, the error/warning still remains.

tree:   https://android.googlesource.com/kernel/common android-4.19-stable
head:   7cf5d82154dcd64ff75b69f3dc8dbff4ed2d2816
commit: eead51495c8760858c32d9ad0332ffc94397aa82 [14965/29506] ANDROID: GKI: sched: stub sched_isolate symbols
config: x86_64-randconfig-a013 (https://download.01.org/0day-ci/archive/20230512/202305120424.iBA6MuEE-lkp@intel.com/config)
compiler: gcc-11 (Debian 11.3.0-12) 11.3.0
reproduce (this is a W=1 build):
        git remote add android-common https://android.googlesource.com/kernel/common
        git fetch --no-tags android-common android-4.19-stable
        git checkout eead51495c8760858c32d9ad0332ffc94397aa82
        # save the config file
        mkdir build_dir && cp config build_dir/.config
        make W=1 O=build_dir ARCH=x86_64 olddefconfig
        make W=1 O=build_dir ARCH=x86_64 SHELL=/bin/bash drivers/nvmem/ kernel/sched/

If you fix the issue, kindly add following tag where applicable
| Reported-by: kernel test robot <lkp@intel.com>
| Link: https://lore.kernel.org/oe-kbuild-all/202305120424.iBA6MuEE-lkp@intel.com/

All warnings (new ones prefixed by >>):

>> kernel/sched/stubs.c:8:5: warning: no previous prototype for 'sched_isolate_cpu' [-Wmissing-prototypes]
       8 | int sched_isolate_cpu(int cpu)
         |     ^~~~~~~~~~~~~~~~~
>> kernel/sched/stubs.c:14:5: warning: no previous prototype for 'sched_unisolate_cpu_unlocked' [-Wmissing-prototypes]
      14 | int sched_unisolate_cpu_unlocked(int cpu)
         |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~
>> kernel/sched/stubs.c:20:5: warning: no previous prototype for 'sched_unisolate_cpu' [-Wmissing-prototypes]
      20 | int sched_unisolate_cpu(int cpu)
         |     ^~~~~~~~~~~~~~~~~~~
>> kernel/sched/stubs.c:26:5: warning: no previous prototype for 'set_task_boost' [-Wmissing-prototypes]
      26 | int set_task_boost(int boost, u64 period)
         |     ^~~~~~~~~~~~~~


vim +/sched_isolate_cpu +8 kernel/sched/stubs.c

     7	
   > 8	int sched_isolate_cpu(int cpu)
     9	{
    10		return -EINVAL;
    11	}
    12	EXPORT_SYMBOL_GPL(sched_isolate_cpu);
    13	
  > 14	int sched_unisolate_cpu_unlocked(int cpu)
    15	{
    16		return -EINVAL;
    17	}
    18	EXPORT_SYMBOL_GPL(sched_unisolate_cpu_unlocked);
    19	
  > 20	int sched_unisolate_cpu(int cpu)
    21	{
    22		return -EINVAL;
    23	}
    24	EXPORT_SYMBOL_GPL(sched_unisolate_cpu);
    25	
  > 26	int set_task_boost(int boost, u64 period)

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