Re: [PATCH 134/141] video: fbdev: lxfb_ops: Fix fall-through warnings for Clang

From: Gustavo A. R. Silva
Date: Tue Nov 24 2020 - 09:43:54 EST


Hi Sam,

On Sun, Nov 22, 2020 at 11:05:40PM +0100, Sam Ravnborg wrote:
> Hi Gustavo,
> On Fri, Nov 20, 2020 at 12:40:32PM -0600, Gustavo A. R. Silva wrote:
> > In preparation to enable -Wimplicit-fallthrough for Clang, fix a warning
> > by explicitly adding a break statement instead of letting the code fall
> > through to the next case.
> >
> > Link: https://github.com/KSPP/linux/issues/115
> > Signed-off-by: Gustavo A. R. Silva <gustavoars@xxxxxxxxxx>
>
> Thanks, applied this and the following patch to drm-misc-next.
> Looks forward to have this warning enabled.
>
> One can only wonder how many hours will be saved by lettting the
> compiler tell you a break is missing. This is the kind of bugs you can
> stare you blind at.

Absolutely. We'll never know how many bugs this will catch in the
future decades of kernel development, before the code is even
committed/submitted. :)

Thanks!
--
Gustavo