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watchdog: pcwd_usb: mark expected switch fall-through

PATCH Superseded Gustavo A. R. Silva 2 participants 2 messages Nov 3, 2017 – Nov 5, 2017 Watchdog device drivers

v1 of 2 Superseded Latest is v2 →

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PATCH 1/1 watchdog: pcwd_usb: mark expected switch fall-through

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.

---
 drivers/watchdog/pcwd_usb.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
drivers/watchdog/pcwd_usb.c +1 -1
index b9e376c..47fe4c5 100644
@@ -456,8 +456,8 @@ static long usb_pcwd_ioctl(struct file *file, unsigned int cmd,
 			return -EINVAL;
 
 		usb_pcwd_keepalive(usb_pcwd_device);
-		/* Fall */
 	}
+		/* fall through */
 
 	case WDIOC_GETTIMEOUT:
 		return put_user(heartbeat, p);
Signature · 1 line
2.7.4
maintainer Reviewed-by on v1 1/1
#1 lore raw
Quoted 7 lines · Gustavo A. R. Silva

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.

Quoted 18 lines
---
 drivers/watchdog/pcwd_usb.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
drivers/watchdog/pcwd_usb.c +1 -1
index b9e376c..47fe4c5 100644
@@ -456,8 +456,8 @@ static long usb_pcwd_ioctl(struct file *file, unsigned int cmd,
 			return -EINVAL;
 
 		usb_pcwd_keepalive(usb_pcwd_device);
-		/* Fall */
 	}
+		/* fall through */
 
 	case WDIOC_GETTIMEOUT:
 		return put_user(heartbeat, p);