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* [PATCH] watchdog: riowd: Mark expected switch fall-through
@ 2019-07-30  1:46 Gustavo A. R. Silva
  2019-07-30 16:59 ` Kees Cook
  2019-07-30 17:09 ` Guenter Roeck
  0 siblings, 2 replies; 3+ messages in thread
From: Gustavo A. R. Silva @ 2019-07-30  1:46 UTC (permalink / raw)
  To: Wim Van Sebroeck, Guenter Roeck
  Cc: linux-watchdog, linux-kernel, Gustavo A. R. Silva, Kees Cook

Mark switch cases where we are expecting to fall through.

This patch fixes the following warnings (Building: sparc64):

drivers/watchdog/riowd.c: In function ‘riowd_ioctl’:
drivers/watchdog/riowd.c:136:3: warning: this statement may fall through [-Wimplicit-fallthrough=]
   riowd_writereg(p, riowd_timeout, WDTO_INDEX);
   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
drivers/watchdog/riowd.c:139:2: note: here
  case WDIOC_GETTIMEOUT:
  ^~~~

Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com>
---
 drivers/watchdog/riowd.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/watchdog/riowd.c b/drivers/watchdog/riowd.c
index 41a2a11535a6..b35f7be20c00 100644
--- a/drivers/watchdog/riowd.c
+++ b/drivers/watchdog/riowd.c
@@ -134,7 +134,7 @@ static long riowd_ioctl(struct file *filp, unsigned int cmd, unsigned long arg)
 			return -EINVAL;
 		riowd_timeout = (new_margin + 59) / 60;
 		riowd_writereg(p, riowd_timeout, WDTO_INDEX);
-		/* Fall */
+		/* Fall through */
 
 	case WDIOC_GETTIMEOUT:
 		return put_user(riowd_timeout * 60, (int __user *)argp);
-- 
2.22.0


^ permalink raw reply	[flat|nested] 3+ messages in thread

* Re: [PATCH] watchdog: riowd: Mark expected switch fall-through
  2019-07-30  1:46 [PATCH] watchdog: riowd: Mark expected switch fall-through Gustavo A. R. Silva
@ 2019-07-30 16:59 ` Kees Cook
  2019-07-30 17:09 ` Guenter Roeck
  1 sibling, 0 replies; 3+ messages in thread
From: Kees Cook @ 2019-07-30 16:59 UTC (permalink / raw)
  To: Gustavo A. R. Silva
  Cc: Wim Van Sebroeck, Guenter Roeck, linux-watchdog, linux-kernel

On Mon, Jul 29, 2019 at 08:46:50PM -0500, Gustavo A. R. Silva wrote:
> Mark switch cases where we are expecting to fall through.
> 
> This patch fixes the following warnings (Building: sparc64):
> 
> drivers/watchdog/riowd.c: In function ‘riowd_ioctl’:
> drivers/watchdog/riowd.c:136:3: warning: this statement may fall through [-Wimplicit-fallthrough=]
>    riowd_writereg(p, riowd_timeout, WDTO_INDEX);
>    ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
> drivers/watchdog/riowd.c:139:2: note: here
>   case WDIOC_GETTIMEOUT:
>   ^~~~
> 
> Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com>

Reviewed-by: Kees Cook <keescook@chromium.org>

-Kees

> ---
>  drivers/watchdog/riowd.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/drivers/watchdog/riowd.c b/drivers/watchdog/riowd.c
> index 41a2a11535a6..b35f7be20c00 100644
> --- a/drivers/watchdog/riowd.c
> +++ b/drivers/watchdog/riowd.c
> @@ -134,7 +134,7 @@ static long riowd_ioctl(struct file *filp, unsigned int cmd, unsigned long arg)
>  			return -EINVAL;
>  		riowd_timeout = (new_margin + 59) / 60;
>  		riowd_writereg(p, riowd_timeout, WDTO_INDEX);
> -		/* Fall */
> +		/* Fall through */
>  
>  	case WDIOC_GETTIMEOUT:
>  		return put_user(riowd_timeout * 60, (int __user *)argp);
> -- 
> 2.22.0
> 

-- 
Kees Cook

^ permalink raw reply	[flat|nested] 3+ messages in thread

* Re: [PATCH] watchdog: riowd: Mark expected switch fall-through
  2019-07-30  1:46 [PATCH] watchdog: riowd: Mark expected switch fall-through Gustavo A. R. Silva
  2019-07-30 16:59 ` Kees Cook
@ 2019-07-30 17:09 ` Guenter Roeck
  1 sibling, 0 replies; 3+ messages in thread
From: Guenter Roeck @ 2019-07-30 17:09 UTC (permalink / raw)
  To: Gustavo A. R. Silva
  Cc: Wim Van Sebroeck, linux-watchdog, linux-kernel, Kees Cook

On Mon, Jul 29, 2019 at 08:46:50PM -0500, Gustavo A. R. Silva wrote:
> Mark switch cases where we are expecting to fall through.
> 
> This patch fixes the following warnings (Building: sparc64):
> 
> drivers/watchdog/riowd.c: In function ‘riowd_ioctl’:
> drivers/watchdog/riowd.c:136:3: warning: this statement may fall through [-Wimplicit-fallthrough=]
>    riowd_writereg(p, riowd_timeout, WDTO_INDEX);
>    ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
> drivers/watchdog/riowd.c:139:2: note: here
>   case WDIOC_GETTIMEOUT:
>   ^~~~
> 
> Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com>
> Reviewed-by: Kees Cook <keescook@chromium.org>

Reviewed-by: Guenter Roeck <linux@roeck-us.net>

> ---
>  drivers/watchdog/riowd.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/drivers/watchdog/riowd.c b/drivers/watchdog/riowd.c
> index 41a2a11535a6..b35f7be20c00 100644
> --- a/drivers/watchdog/riowd.c
> +++ b/drivers/watchdog/riowd.c
> @@ -134,7 +134,7 @@ static long riowd_ioctl(struct file *filp, unsigned int cmd, unsigned long arg)
>  			return -EINVAL;
>  		riowd_timeout = (new_margin + 59) / 60;
>  		riowd_writereg(p, riowd_timeout, WDTO_INDEX);
> -		/* Fall */
> +		/* Fall through */
>  
>  	case WDIOC_GETTIMEOUT:
>  		return put_user(riowd_timeout * 60, (int __user *)argp);

^ permalink raw reply	[flat|nested] 3+ messages in thread

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2019-07-30  1:46 [PATCH] watchdog: riowd: Mark expected switch fall-through Gustavo A. R. Silva
2019-07-30 16:59 ` Kees Cook
2019-07-30 17:09 ` Guenter Roeck

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