linux-kernel - [PATCH] ext2: Annotate implicit fall through in __ext2_truncate

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Date:   Thu, 24 Jan 2019 19:05:04 +0100
From:   Mathieu Malaterre <malat@...ian.org>
To:     Jan Kara <jack@...e.com>
Cc:     Mathieu Malaterre <malat@...ian.org>, linux-ext4@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: [PATCH] ext2: Annotate implicit fall through in __ext2_truncate_blocks

There is a plan to build the kernel with -Wimplicit-fallthrough and
these places in the code produced warnings (W=1).

This commit removes the following warnings:

  fs/ext2/inode.c:1237:7: warning: this statement may fall through [-Wimplicit-fallthrough=]
  fs/ext2/inode.c:1244:7: warning: this statement may fall through [-Wimplicit-fallthrough=]

Signed-off-by: Mathieu Malaterre <malat@...ian.org>
---
 fs/ext2/inode.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/fs/ext2/inode.c b/fs/ext2/inode.c
index e4bb9386c045..e64029b1bd50 100644
--- a/fs/ext2/inode.c
+++ b/fs/ext2/inode.c
@@ -1239,6 +1239,7 @@ static void __ext2_truncate_blocks(struct inode *inode, loff_t offset)
 				mark_inode_dirty(inode);
 				ext2_free_branches(inode, &nr, &nr+1, 1);
 			}
+			/* fall through */
 		case EXT2_IND_BLOCK:
 			nr = i_data[EXT2_DIND_BLOCK];
 			if (nr) {
@@ -1246,6 +1247,7 @@ static void __ext2_truncate_blocks(struct inode *inode, loff_t offset)
 				mark_inode_dirty(inode);
 				ext2_free_branches(inode, &nr, &nr+1, 2);
 			}
+			/* fall through */
 		case EXT2_DIND_BLOCK:
 			nr = i_data[EXT2_TIND_BLOCK];
 			if (nr) {
-- 
2.19.2