[PATCH pm] PM / hibernate: swsusp_page_is_valid() can be static

[kbuild test robot <fengguang.wu@intel.com>]

Signed-off-by: Fengguang Wu <fengguang.wu@intel.com>
---
 snapshot.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/kernel/power/snapshot.c b/kernel/power/snapshot.c
index ebbb995..0e4112f4 100644
--- a/kernel/power/snapshot.c
+++ b/kernel/power/snapshot.c
@@ -925,7 +925,7 @@ static void swsusp_unset_page_forbidden(struct page *page)
 		memory_bm_clear_bit(forbidden_pages_map, page_to_pfn(page));
 }
 
-int swsusp_page_is_valid(struct page *page)
+static int swsusp_page_is_valid(struct page *page)
 {
 	return valid_pages_map ?
 		memory_bm_test_bit(valid_pages_map, page_to_pfn(page)) : 0;