linux-kernel - [PATCH] memstick: host: tifm_ms: mark expected switch fall-throughs

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Date:   Tue, 3 Jul 2018 16:36:00 -0500
From:   "Gustavo A. R. Silva" <gustavo@...eddedor.com>
To:     Alex Dubov <oakad@...oo.com>, Kees Cook <keescook@...omium.org>
Cc:     linux-kernel@...r.kernel.org,
        "Gustavo A. R. Silva" <gustavo@...eddedor.com>
Subject: [PATCH] memstick: host: tifm_ms: mark expected switch fall-throughs

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

Signed-off-by: Gustavo A. R. Silva <gustavo@...eddedor.com>
---
 drivers/memstick/host/tifm_ms.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/memstick/host/tifm_ms.c b/drivers/memstick/host/tifm_ms.c
index bed2058..1bbb2ea 100644
--- a/drivers/memstick/host/tifm_ms.c
+++ b/drivers/memstick/host/tifm_ms.c
@@ -166,9 +166,11 @@ static unsigned int tifm_ms_write_data(struct tifm_ms *host,
 	case 3:
 		host->io_word |= buf[off + 2] << 16;
 		host->io_pos++;
+		/* fall through */
 	case 2:
 		host->io_word |= buf[off + 1] << 8;
 		host->io_pos++;
+		/* fall through */
 	case 1:
 		host->io_word |= buf[off];
 		host->io_pos++;
-- 
2.7.4