Thread (40 messages) 40 messages, 10 authors, 2021-09-22

Re: [PATCH v2 2/4] net: i825xx: Use absolute_pointer for memcpy from fixed memory location

From: Geert Uytterhoeven <geert@linux-m68k.org>
Date: 2021-09-15 07:08:34
Also in: linux-alpha, lkml

On Wed, Sep 15, 2021 at 5:52 AM Guenter Roeck [off-list ref] wrote:
gcc 11.x reports the following compiler warning/error.

drivers/net/ethernet/i825xx/82596.c: In function 'i82596_probe':
    ./arch/m68k/include/asm/string.h:72:25: error:
            '__builtin_memcpy' reading 6 bytes from a region of size 0
                    [-Werror=stringop-overread]

Use absolute_pointer() to work around the problem.

Cc: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Reviewed-by: Geert Uytterhoeven <geert@linux-m68k.org>

Gr{oetje,eeting}s,

                        Geert

-- 
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@linux-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
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