[PATCH] mm, THP, swap: Silence a compiler warning

[Huang Ying]

To fix the following compiler warning,

mm/swapfile.c: In function 'reuse_swap_page':
mm/swapfile.c:1429:16: warning: 'offset' may be used uninitialized in this function [-Wmaybe-uninitialized]
  unsigned long offset;
                ^

This is a false positive report, but we should silence it anyway.

Reported-by: Stephen Rothwell <sfr@xxxxxxxxxxxxxxxx>
Signed-off-by: "Huang, Ying" <ying.huang@xxxxxxxxx>
---
 mm/swapfile.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/mm/swapfile.c b/mm/swapfile.c
index 32434541cc12..64a94f70e867 100644
--- a/mm/swapfile.c
+++ b/mm/swapfile.c
@@ -1426,7 +1426,7 @@ static int page_trans_huge_map_swapcount(struct page *page, int *total_mapcount,
 					 int *total_swapcount)
 {
 	int i, map_swapcount, _total_mapcount, _total_swapcount;
-	unsigned long offset;
+	unsigned long offset = 0;
 	struct swap_info_struct *si;
 	struct swap_cluster_info *ci = NULL;
 	unsigned char *map = NULL;
-- 
2.13.2