linux-kernel - [PATCH 1/3] auxdisplay: panel: Change comments to silence fallthrough warnings

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Date:   Mon, 19 Feb 2018 17:05:37 +0100
From:   Miguel Ojeda <miguel.ojeda.sandonis@...il.com>
To:     linux-kernel@...r.kernel.org, w@....eu, geert@...ux-m68k.org
Subject: [PATCH 1/3] auxdisplay: panel: Change comments to silence
 fallthrough warnings

Compiling with W=1 with gcc 7.2.0 gives 3 warnings like:

  drivers/auxdisplay/panel.c: In function ‘panel_process_inputs’:
  drivers/auxdisplay/panel.c:1374:17: warning: this statement may fall
  through [-Wimplicit-fallthrough=]

Cc: Willy Tarreau <w@....eu>
Cc: Geert Uytterhoeven <geert@...ux-m68k.org>
Signed-off-by: Miguel Ojeda <miguel.ojeda.sandonis@...il.com>
---
I saw this while fixing the ones reported by the build service.
I will queue it up for 4.17.

 drivers/auxdisplay/panel.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/auxdisplay/panel.c b/drivers/auxdisplay/panel.c
index ea7869c0d7f9..b7bb118f1497 100644
--- a/drivers/auxdisplay/panel.c
+++ b/drivers/auxdisplay/panel.c
@@ -1372,7 +1372,7 @@ static void panel_process_inputs(void)
 				break;
 			input->rise_timer = 0;
 			input->state = INPUT_ST_RISING;
-			/* no break here, fall through */
+			/* fallthrough */
 		case INPUT_ST_RISING:
 			if ((phys_curr & input->mask) != input->value) {
 				input->state = INPUT_ST_LOW;
@@ -1385,11 +1385,11 @@ static void panel_process_inputs(void)
 			}
 			input->high_timer = 0;
 			input->state = INPUT_ST_HIGH;
-			/* no break here, fall through */
+			/* fallthrough */
 		case INPUT_ST_HIGH:
 			if (input_state_high(input))
 				break;
-			/* no break here, fall through */
+			/* fallthrough */
 		case INPUT_ST_FALLING:
 			input_state_falling(input);
 		}
-- 
2.14.1