diff mbox series

[148/262] mm/vmscan.c: fix -Wunused-but-set-variable warning

Message ID 20211105204222.LKDG_epUU%akpm@linux-foundation.org (mailing list archive)
State New
Headers show
Series [001/262] scripts/spelling.txt: add more spellings to spelling.txt | expand

Commit Message

Andrew Morton Nov. 5, 2021, 8:42 p.m. UTC 
From: Kai Song <songkai01@inspur.com>
Subject: mm/vmscan.c: fix -Wunused-but-set-variable warning

We fix the following warning when building kernel with W=1:
mm/vmscan.c:1362:6: warning: variable 'err' set but not used [-Wunused-but-set-variable]

Link: https://lkml.kernel.org/r/20210924181218.21165-1-songkai01@inspur.com
Signed-off-by: Kai Song <songkai01@inspur.com>
Reviewed-by: Yang Shi <shy828301@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---

 mm/vmscan.c |    3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)
diff mbox series

Patch

--- a/mm/vmscan.c~mm-vmscanc-fix-wunused-but-set-variable-warning
+++ a/mm/vmscan.c
@@ -1337,7 +1337,6 @@  static unsigned int demote_page_list(str
 {
 	int target_nid = next_demotion_node(pgdat->node_id);
 	unsigned int nr_succeeded;
-	int err;
 
 	if (list_empty(demote_pages))
 		return 0;
@@ -1346,7 +1345,7 @@  static unsigned int demote_page_list(str
 		return 0;
 
 	/* Demotion ignores all cpuset and mempolicy settings */
-	err = migrate_pages(demote_pages, alloc_demote_page, NULL,
+	migrate_pages(demote_pages, alloc_demote_page, NULL,
 			    target_nid, MIGRATE_ASYNC, MR_DEMOTION,
 			    &nr_succeeded);