[RFC PATCH] mm: rss_stat_free() can be static

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

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kernel/fork.c:878:6: warning: symbol 'rss_stat_free' was not declared. Should it be static?

Reported-by: kernel test robot <lkp@intel.com>
Signed-off-by: kernel test robot <lkp@intel.com>
---
 kernel/fork.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/kernel/fork.c b/kernel/fork.c
index e549e0b30e2bd..2f5ce61f2aac8 100644
--- a/kernel/fork.c
+++ b/kernel/fork.c
@@ -875,7 +875,7 @@ void rss_stat_free(struct task_struct *p)
 	kfree(p->rss_stat.numa_count);
 }
 #else
-void rss_stat_free(struct task_struct *p) {}
+static void rss_stat_free(struct task_struct *p) {}
 #endif
 
 void __put_task_struct(struct task_struct *tsk)