[RFC PATCH] mm/hugetlb: __unmap_hugepage_range() can be static

[kernel test robot]

mm/hugetlb.c:4334:6: warning: symbol '__unmap_hugepage_range' was not declared. Should it be static?

Reported-by: kernel test robot <lkp@xxxxxxxxx>
Signed-off-by: kernel test robot <lkp@xxxxxxxxx>
---
 hugetlb.c |    6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/mm/hugetlb.c b/mm/hugetlb.c
index 924553aa8f789ad..4bdd637b0c29a95 100644
--- a/mm/hugetlb.c
+++ b/mm/hugetlb.c
@@ -4331,9 +4331,9 @@ int copy_hugetlb_page_range(struct mm_struct *dst, struct mm_struct *src,
 	return ret;
 }
 
-void __unmap_hugepage_range(struct mmu_gather *tlb, struct vm_area_struct *vma,
-			    unsigned long start, unsigned long end,
-			    struct page *ref_page)
+static void __unmap_hugepage_range(struct mmu_gather *tlb, struct vm_area_struct *vma,
+				   unsigned long start, unsigned long end,
+				   struct page *ref_page)
 {
 	struct mm_struct *mm = vma->vm_mm;
 	unsigned long address;