From 5b568acc3c2328f7d8da3cb03b4ef343f93545c6 Mon Sep 17 00:00:00 2001
From: "Gustavo A. R. Silva" <garsilva@embeddedor.com>
Date: Wed, 15 Nov 2017 17:38:49 -0800
Subject: [PATCH] mm/list_lru.c: mark expected switch fall-through

In preparation for enabling -Wimplicit-fallthrough, mark switch cases
where we are expecting to fall through.

Link: http://lkml.kernel.org/r/20171020190754.GA24332@embeddedor.com
Signed-off-by: Gustavo A. R. Silva <garsilva@embeddedor.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 mm/list_lru.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/mm/list_lru.c b/mm/list_lru.c
index f141f0c80ff3..fd41e969ede5 100644
--- a/mm/list_lru.c
+++ b/mm/list_lru.c
@@ -221,6 +221,7 @@ __list_lru_walk_one(struct list_lru *lru, int nid, int memcg_idx,
 		switch (ret) {
 		case LRU_REMOVED_RETRY:
 			assert_spin_locked(&nlru->lock);
+			/* fall through */
 		case LRU_REMOVED:
 			isolated++;
 			nlru->nr_items--;