linux-kernel - [PATCH] vt: annotate implicit fall throughs

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Date:   Mon, 14 Jan 2019 21:41:13 +0100
From:   Mathieu Malaterre <malat@...ian.org>
To:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Cc:     Mathieu Malaterre <malat@...ian.org>, Jiri Slaby <jslaby@...e.com>,
        linux-kernel@...r.kernel.org
Subject: [PATCH] vt: annotate implicit fall throughs

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

This commit remove the following warning:

  drivers/tty/vt/vt.c:2112:6: warning: this statement may fall through [-Wimplicit-fallthrough=]
  drivers/tty/vt/vt.c:2237:6: warning: this statement may fall through [-Wimplicit-fallthrough=]

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

diff --git a/drivers/tty/vt/vt.c b/drivers/tty/vt/vt.c
index 41ec8e5010f3..e4f8caed26af 100644
--- a/drivers/tty/vt/vt.c
+++ b/drivers/tty/vt/vt.c
@@ -2111,6 +2111,7 @@ static void do_con_trol(struct tty_struct *tty, struct vc_data *vc, int c)
 		lf(vc);
 		if (!is_kbd(vc, lnm))
 			return;
+		/* fall through */
 	case 13:
 		cr(vc);
 		return;
@@ -2236,6 +2237,7 @@ static void do_con_trol(struct tty_struct *tty, struct vc_data *vc, int c)
 		vc->vc_ques = (c == '?');
 		if (vc->vc_ques)
 			return;
+		/* fall through */
 	case ESgetpars:
 		if (c == ';' && vc->vc_npar < NPAR - 1) {
 			vc->vc_npar++;
-- 
2.19.2