On Fri, Nov 5, 2021 at 6:23 AM kernel test robot <lkp@intel.com> wrote:
>
> kernel/sched/fair.c:11949:1: warning: symbol '__pcpu_scope_cfs_migrater' was not declared. Should it be static?
>
> Reported-by: kernel test robot <lkp@intel.com>
> Signed-off-by: kernel test robot <lkp@intel.com>
> ---
>  fair.c |    2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/kernel/sched/fair.c b/kernel/sched/fair.c
> index ed119115906c9..dbf7af187b9d6 100644
> --- a/kernel/sched/fair.c
> +++ b/kernel/sched/fair.c
> @@ -11946,7 +11946,7 @@ struct cfs_migrater {
>         raw_spinlock_t lock;
>  };
>
> -DEFINE_PER_CPU(struct cfs_migrater, cfs_migrater);
> +static DEFINE_PER_CPU(struct cfs_migrater, cfs_migrater);
>
>  static int cfs_migration_should_run(unsigned int cpu)
>  {

Great catch!
Thanks for the fix.

-- 
Thanks
Yafang