diff --git a/mm/memory.c b/mm/memory.c
index 22dfa617bddb69af777298c45739a0113f965b13..57ff3510ddbd9f7c16ad8310d54d79e22f3afbd6 100644
--- a/mm/memory.c
+++ b/mm/memory.c
@@ -3531,7 +3531,7 @@ static int do_nonlinear_fault(struct mm_struct *mm, struct vm_area_struct *vma,
 	return __do_fault(mm, vma, address, pmd, pgoff, flags, orig_pte);
 }
 
-int numa_migrate_prep(struct page *page, struct vm_area_struct *vma,
+static int numa_migrate_prep(struct page *page, struct vm_area_struct *vma,
 				unsigned long addr, int page_nid,
 				int *flags)
 {
@@ -3546,7 +3546,7 @@ int numa_migrate_prep(struct page *page, struct vm_area_struct *vma,
 	return mpol_misplaced(page, vma, addr);
 }
 
-int do_numa_page(struct mm_struct *mm, struct vm_area_struct *vma,
+static int do_numa_page(struct mm_struct *mm, struct vm_area_struct *vma,
 		   unsigned long addr, pte_t pte, pte_t *ptep, pmd_t *pmd)
 {
 	struct page *page = NULL;