+ mm-fix-fall-through-warnings-for-clang.patch added to -mm tree

+ mm-fix-fall-through-warnings-for-clang.patch added to -mm tree

[akpm]

The patch titled
     Subject: mm: fix fall-through warnings for Clang
has been added to the -mm tree.  Its filename is
     mm-fix-fall-through-warnings-for-clang.patch

This patch should soon appear at
    https://ozlabs.org/~akpm/mmots/broken-out/mm-fix-fall-through-warnings-for-clang.patch
and later at
    https://ozlabs.org/~akpm/mmotm/broken-out/mm-fix-fall-through-warnings-for-clang.patch

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------------------------------------------------------
From: "Gustavo A. R. Silva" <gustavoars@kernel.org>
Subject: mm: fix fall-through warnings for Clang

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
Link: https://lkml.kernel.org/r/f5756988b8842a3f10008fbc5b0a654f828920a9.1605896059.git.gustavoars@kernel.org
Signed-off-by: Gustavo A. R. Silva <gustavoars@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---

 mm/mm_init.c |    1 +
 mm/vmscan.c  |    1 +
 2 files changed, 2 insertions(+)

--- a/mm/mm_init.c~mm-fix-fall-through-warnings-for-clang
+++ a/mm/mm_init.c
@@ -173,6 +173,7 @@ static int __meminit mm_compute_batch_no
 	case MEM_ONLINE:
 	case MEM_OFFLINE:
 		mm_compute_batch(sysctl_overcommit_memory);
+		break;
 	default:
 		break;
 	}
--- a/mm/vmscan.c~mm-fix-fall-through-warnings-for-clang
+++ a/mm/vmscan.c
@@ -1369,6 +1369,7 @@ static unsigned int shrink_page_list(str
 				if (PageDirty(page) || PageWriteback(page))
 					goto keep_locked;
 				mapping = page_mapping(page);
+				fallthrough;
 			case PAGE_CLEAN:
 				; /* try to free the page below */
 			}
_

Patches currently in -mm which might be from gustavoars@kernel.org are

mm-fix-fall-through-warnings-for-clang.patch
lib-stackdepotc-replace-one-element-array-with-flexible-array-member.patch
lib-stackdepotc-use-flex_array_size-helper-in-memcpy.patch
lib-stackdepotc-use-array_size-helper-in-jhash2.patch