Re: [PATCH V2 1/4] vgaarb: Add support for setting the default video device

From: Geert Uytterhoeven
Date: Wed Apr 18 2012 - 05:37:08 EST

On Mon, Apr 16, 2012 at 22:26, Matthew Garrett <mjg@xxxxxxxxxx> wrote:
> --- a/include/linux/vgaarb.h
> +++ b/include/linux/vgaarb.h
> @@ -31,6 +31,7 @@
> Â#ifndef LINUX_VGA_H
> Â#define LINUX_VGA_H
> +#include <video/vga.h>

Is this include really needed? x86_64/allmodconfig builds fine without it.

It causes m68k/allmodconfig to fail with:

In file included from include/linux/vgaarb.h:35,
from drivers/gpu/drm/drm_irq.c:43:
include/video/vga.h: In function âvga_mm_râ:
include/video/vga.h:242: error: implicit declaration of function âz_readbâ
include/video/vga.h: In function âvga_mm_wâ:
include/video/vga.h:247: error: implicit declaration of function âz_writebâ
include/video/vga.h: In function âvga_mm_w_fastâ:
include/video/vga.h:253: error: implicit declaration of function âz_writewâ
make[1]: *** [drivers/gpu/drm/drm_irq.o] Error 1

Currently <video/vga.h> has a crude hack to make cirrusfb work on Amiga,
but that's the only VGA support m68k has.
There's also no <asm/vga.h>, so m68k/allmodconfig with CONFIG_AMIGA
disabled now fails with:

In file included from include/linux/vgaarb.h:34,
from drivers/gpu/drm/drm_irq.c:42:
include/video/vga.h:23:21: error: asm/vga.h: No such file or directory
make[1]: *** [drivers/gpu/drm/drm_irq.o] Error 1

Removing the #include <video/vga.h> fixes both cases.



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

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.
             Â Â -- Linus Torvalds
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