linux-kernel - Re: [PATCH] gpio: aspeed: fix compile testing warning

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Date:   Fri, 13 Jul 2018 09:06:54 +0200
From:   Linus Walleij <linus.walleij@...aro.org>
To:     Benjamin Herrenschmidt <benh@...nel.crashing.org>
Cc:     Arnd Bergmann <arnd@...db.de>, Joel Stanley <joel@....id.au>,
        Andrew Jeffery <andrew@...id.au>,
        Thierry Reding <treding@...dia.com>,
        "open list:GPIO SUBSYSTEM" <linux-gpio@...r.kernel.org>,
        Linux ARM <linux-arm-kernel@...ts.infradead.org>,
        linux-aspeed@...ts.ozlabs.org,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] gpio: aspeed: fix compile testing warning

On Tue, Jul 10, 2018 at 1:53 AM Benjamin Herrenschmidt
<benh@...nel.crashing.org> wrote:

> On Mon, 2018-07-09 at 16:56 +0200, Arnd Bergmann wrote:
> > Gcc cannot always see that BUG_ON(1) is guaranteed to not
> > return, so we get a warning message in some configurations:
> >
> > drivers/gpio/gpio-aspeed.c: In function 'bank_reg':
> > drivers/gpio/gpio-aspeed.c:244:1: error: control reaches end of non-void function [-Werror=return-type]
> >
> > Using a plain BUG() is easier here and avoids the problem.
> >
> > Fixes: 44ddf559d579 ("gpio: aspeed: Rework register type accessors")
> > Signed-off-by: Arnd Bergmann <arnd@...db.de>
>
> Acked-by: Benjamin Herrenschmidt <benh@...nel.crashing.org>
>
> Linus, can you plonk that on top of the patches in that topic branch
> you created ?

I put it on top of my devel branch where I merged in the topic
branch.

As it's a fringe thing anyways I don't think we need to recreate the
topic branch for this.

Yours,
Linus Walleij