linux-kernel - [PATCH] auxdisplay: panel: mark expected switch fall-throughs

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Message-ID: <20171012213546.GA13688@embeddedor.com>
Date:   Thu, 12 Oct 2017 16:35:46 -0500
From:   "Gustavo A. R. Silva" <garsilva@...eddedor.com>
To:     Miguel Ojeda Sandonis <miguel.ojeda.sandonis@...il.com>
Cc:     linux-kernel@...r.kernel.org,
        "Gustavo A. R. Silva" <garsilva@...eddedor.com>
Subject: [PATCH] auxdisplay: panel: mark expected switch fall-throughs

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

In this particular case, notice that I replaced the "no break here,
fall through" comments with "fall through" comments, which is what
GCC is expecting to find.

Signed-off-by: Gustavo A. R. Silva <garsilva@...eddedor.com>
---
 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 6911acd..8b80a97 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 */
+			/* fall through */
 		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 */
+			/* fall through */
 		case INPUT_ST_HIGH:
 			if (input_state_high(input))
 				break;
-			/* no break here, fall through */
+			/* fall through */
 		case INPUT_ST_FALLING:
 			input_state_falling(input);
 		}
-- 
2.7.4