diff mbox series

[041/141] mm: Fix fall-through warnings for Clang

Message ID f5756988b8842a3f10008fbc5b0a654f828920a9.1605896059.git.gustavoars@kernel.org (mailing list archive)
State New
Headers show
Series Fix fall-through warnings for Clang | expand

Commit Message

Gustavo A. R. Silva Nov. 20, 2020, 6:30 p.m. UTC
In preparation to enable -Wimplicit-fallthrough for Clang, fix a couple
of warnings by explicitly adding a break statement instead of just letting
the code fall through to the next, and by adding a fallthrough
pseudo-keyword in places where the code is intended to fall through.

Link: https://github.com/KSPP/linux/issues/115
Signed-off-by: Gustavo A. R. Silva <gustavoars@kernel.org>
 mm/mm_init.c | 1 +
 mm/vmscan.c  | 1 +
 2 files changed, 2 insertions(+)
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diff --git a/mm/mm_init.c b/mm/mm_init.c
index b06a30fbedff..8e02e865cc65 100644
--- a/mm/mm_init.c
+++ b/mm/mm_init.c
@@ -173,6 +173,7 @@  static int __meminit mm_compute_batch_notifier(struct notifier_block *self,
 	case MEM_ONLINE:
+		break;
diff --git a/mm/vmscan.c b/mm/vmscan.c
index 7b4e31eac2cf..a55c96891549 100644
--- a/mm/vmscan.c
+++ b/mm/vmscan.c
@@ -1372,6 +1372,7 @@  static unsigned int shrink_page_list(struct list_head *page_list,
 				if (PageDirty(page) || PageWriteback(page))
 					goto keep_locked;
 				mapping = page_mapping(page);
+				fallthrough;
 			case PAGE_CLEAN:
 				; /* try to free the page below */