[PATCH] i915, drm: Fix build dependency on VGA_ARB

[Carlos R. Mafra]

On Do 26.Aug'10 at 16:59:18 +0200, Borislav Petkov wrote:
> I get:
> 
>   LD      init/built-in.o
>   LD      .tmp_vmlinux1
> drivers/built-in.o: In function `intel_modeset_init':
> (.text+0xa993f): undefined reference to `vga_get'
> drivers/built-in.o: In function `intel_modeset_init':
> (.text+0xa9963): undefined reference to `vga_put'
> make: *** [.tmp_vmlinux1] Error 1
> 
> since CONFIG_AGB_ARB is not being selected. Make I915 driver select it
> as the numerous other things it selects.
> 
> Signed-off-by: Borislav Petkov <bp at alien8.de>
> ---
> 
> This is on latest Linus git (v2.6.36-rc2-237-gd4348c6) after doing `make
> oldconfig' on an Acer Aspire One netbook.
> 
>  drivers/gpu/drm/Kconfig |    1 +
>  1 files changed, 1 insertions(+), 0 deletions(-)
> 
> diff --git a/drivers/gpu/drm/Kconfig b/drivers/gpu/drm/Kconfig
> index 4cab0c6..43590ab 100644
> --- a/drivers/gpu/drm/Kconfig
> +++ b/drivers/gpu/drm/Kconfig
> @@ -97,6 +97,7 @@ config DRM_I830
>  config DRM_I915
>  	tristate "i915 driver"
>  	depends on AGP_INTEL
> +	select VGA_ARB
>  	select SHMEM
>  	select DRM_KMS_HELPER
>  	select FB_CFB_FILLRECT

I reported this build failure here:

http://lkml.org/lkml/2010/8/23/127

Is there no other way to fix this? From the Kconfig description
of VGA_ARB I thought I would not need this (and it's a new thing too),
so why make my kernel bigger so easily?