linux-hardening - Re: [PATCH][next] gpiolib: acpi: Fix fall-through warnings for Clang

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Message-ID: <CAMpxmJWq0_ZXsPsWhgWC_93egDm9y2A5P3GiCQ4YTcdGrGTSZQ@mail.gmail.com>
Date:   Mon, 30 Nov 2020 17:51:02 +0100
From:   Bartosz Golaszewski <bgolaszewski@...libre.com>
To:     Andy Shevchenko <andy.shevchenko@...il.com>
Cc:     "Gustavo A. R. Silva" <gustavoars@...nel.org>,
        Mika Westerberg <mika.westerberg@...ux.intel.com>,
        Andy Shevchenko <andriy.shevchenko@...ux.intel.com>,
        Linus Walleij <linus.walleij@...aro.org>,
        "open list:GPIO SUBSYSTEM" <linux-gpio@...r.kernel.org>,
        ACPI Devel Maling List <linux-acpi@...r.kernel.org>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        linux-hardening@...r.kernel.org
Subject: Re: [PATCH][next] gpiolib: acpi: Fix fall-through warnings for Clang

On Thu, Nov 19, 2020 at 7:46 PM Andy Shevchenko
<andy.shevchenko@...il.com> wrote:
>
> On Thu, Nov 19, 2020 at 7:08 PM Gustavo A. R. Silva
> <gustavoars@...nel.org> 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.
>
> Reviewed-by: Andy Shevchenko <andy.shevchenko@...il.com>
>
> > Link: https://github.com/KSPP/linux/issues/115
> > Signed-off-by: Gustavo A. R. Silva <gustavoars@...nel.org>
> > ---
> >  drivers/gpio/gpiolib-acpi.c | 1 +
> >  1 file changed, 1 insertion(+)
> >
> > diff --git a/drivers/gpio/gpiolib-acpi.c b/drivers/gpio/gpiolib-acpi.c
> > index 6cc5f91bfe2e..e37a57d0a2f0 100644
> > --- a/drivers/gpio/gpiolib-acpi.c
> > +++ b/drivers/gpio/gpiolib-acpi.c
> > @@ -233,6 +233,7 @@ acpi_gpio_to_gpiod_flags(const struct acpi_resource_gpio *agpio, int polarity)
> >                 default:
> >                         break;
> >                 }
> > +               break;
> >         default:
> >                 break;
> >         }
> > --
> > 2.27.0
> >
>
>
> --
> With Best Regards,
> Andy Shevchenko

Are you taking it through your tree?

Bartosz