linux-kernel - Re: [PATCH] m68k: Double cast io functions to unsigned long

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Date:   Tue, 7 Sep 2021 14:50:06 +0200
From:   Geert Uytterhoeven <geert@...ux-m68k.org>
To:     Guenter Roeck <linux@...ck-us.net>
Cc:     linux-m68k <linux-m68k@...ts.linux-m68k.org>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] m68k: Double cast io functions to unsigned long

On Tue, Sep 7, 2021 at 8:07 AM Guenter Roeck <linux@...ck-us.net> wrote:
> m68k builds fail widely with errors such as
>
> arch/m68k/include/asm/raw_io.h:20:19: error:
>         cast to pointer from integer of different size
> arch/m68k/include/asm/raw_io.h:30:32: error:
>         cast to pointer from integer of different size [-Werror=int-to-p
>
> On m68k, io functions are defined as macros. The problem is seen if the
> macro parameter variable size differs from the size of a pointer. Cast
> the parameter of all io macros to unsigned long before casting it to
> a pointer to fix the problem.
>
> Signed-off-by: Guenter Roeck <linux@...ck-us.net>

Reviewed-by: Geert Uytterhoeven <geert@...ux-m68k.org>
i.e. will queue in the m68k fixes branch.

Gr{oetje,eeting}s,

                        Geert

-- 
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@...ux-m68k.org

In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
                                -- Linus Torvalds