linux-kernel - [PATCH] watchdog: f71808e_wdt: mark expected switch fall-throughs

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Message-ID: <20171102192817.GA20042@embeddedor.com>
Date:   Thu, 2 Nov 2017 14:28:17 -0500
From:   "Gustavo A. R. Silva" <garsilva@...eddedor.com>
To:     Wim Van Sebroeck <wim@...ana.be>,
        Guenter Roeck <linux@...ck-us.net>
Cc:     linux-watchdog@...r.kernel.org, linux-kernel@...r.kernel.org,
        "Gustavo A. R. Silva" <garsilva@...eddedor.com>
Subject: [PATCH] watchdog: f71808e_wdt: mark expected switch fall-throughs

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

Notice that in this particular case I replaced "Fall" with a proper
"fall through" comment, which is what GCC is expecting to find.

Signed-off-by: Gustavo A. R. Silva <garsilva@...eddedor.com>
---
 drivers/watchdog/f71808e_wdt.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/watchdog/f71808e_wdt.c b/drivers/watchdog/f71808e_wdt.c
index 8658dba..e0678c1 100644
--- a/drivers/watchdog/f71808e_wdt.c
+++ b/drivers/watchdog/f71808e_wdt.c
@@ -627,7 +627,7 @@ static long watchdog_ioctl(struct file *file, unsigned int cmd,
 
 		if (new_options & WDIOS_ENABLECARD)
 			return watchdog_start();
-
+		/* fall through */
 
 	case WDIOC_KEEPALIVE:
 		watchdog_keepalive();
@@ -641,7 +641,7 @@ static long watchdog_ioctl(struct file *file, unsigned int cmd,
 			return -EINVAL;
 
 		watchdog_keepalive();
-		/* Fall */
+		/* fall through */
 
 	case WDIOC_GETTIMEOUT:
 		return put_user(watchdog.timeout, uarg.i);
-- 
2.7.4