linux-kernel - [PATCH] seq_file: annotate implicit fall through

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Date:   Mon, 14 Jan 2019 21:37:59 +0100
From:   Mathieu Malaterre <malat@...ian.org>
To:     Alexander Viro <viro@...iv.linux.org.uk>
Cc:     Mathieu Malaterre <malat@...ian.org>,
        linux-fsdevel@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: [PATCH] seq_file: annotate implicit fall through

There is a plan to build the kernel with -Wimplicit-fallthrough and
this place in the code produced a warning (W=1).

This commit remove the following warning:

  fs/seq_file.c:319:10: warning: this statement may fall through [-Wimplicit-fallthrough=]

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

diff --git a/fs/seq_file.c b/fs/seq_file.c
index 1dea7a8a5255..abe27ec43176 100644
--- a/fs/seq_file.c
+++ b/fs/seq_file.c
@@ -317,6 +317,7 @@ loff_t seq_lseek(struct file *file, loff_t offset, int whence)
 	switch (whence) {
 	case SEEK_CUR:
 		offset += file->f_pos;
+		/* fall through */
 	case SEEK_SET:
 		if (offset < 0)
 			break;
-- 
2.19.2