Re: [PATCH] watchdog: pc87413: Mark expected switch fall-through

From: Guenter Roeck
Date: Tue Feb 26 2019 - 12:55:25 EST


On Tue, Feb 26, 2019 at 11:46:09AM -0600, Gustavo A. R. Silva wrote:
> Hi all,
>
> Friendly ping:
>
> Who can take this?
>
Wim, presumably.

Guenter

> Thanks
> --
> Gustavo
>
>
> On 2/18/19 11:50 AM, Gustavo A. R. Silva wrote:
> >
> >
> > On 2/18/19 10:09 AM, Guenter Roeck wrote:
> >> On 2/14/19 12:26 PM, Gustavo A. R. Silva wrote:
> >>> In preparation to enabling -Wimplicit-fallthrough, mark switch
> >>> cases where we are expecting to fall through.
> >>>
> >>> This patch fixes the following warning:
> >>>
> >>> drivers/watchdog/pc87413_wdt.c: In function âpc87413_ioctlâ:
> >>> drivers/watchdog/pc87413_wdt.c:439:3: warning: this statement may fall through [-Wimplicit-fallthrough=]
> >>> ÂÂÂ pc87413_refresh();
> >>> ÂÂÂ ^~~~~~~~~~~~~~~~~
> >>> drivers/watchdog/pc87413_wdt.c:441:2: note: here
> >>> ÂÂ case WDIOC_GETTIMEOUT:
> >>> ÂÂ ^~~~
> >>>
> >>> Warning level 3 was used: -Wimplicit-fallthrough=3
> >>>
> >>> Notice that, in this particular case, the code comment is modified
> >>> in accordance with what GCC is expecting to find.
> >>>
> >>> This patch is part of the ongoing efforts to enable
> >>> -Wimplicit-fallthrough.
> >>>
> >>> Signed-off-by: Gustavo A. R. Silva <gustavo@xxxxxxxxxxxxxx>
> >>
> >> Reviewed-by: Guenter Roeck <linux@xxxxxxxxxxxx>
> >>
> >
> > Thanks, Guenter.
> >
> > --
> > Gustavo
> >