[PATCH v2] drm: provide agp dummies for CONFIG_AGP=n

[Stephen Warren]

On 08/08/2013 02:19 PM, David Herrmann wrote:
> We currently rely on gcc dead-code elimination so the drm_agp_* helpers
> are not called if drm_core_has_AGP() is false. That's ugly as hell so
> provide "static inline" dummies for the case that AGP is disabled.
> 
> Fixes a build-regression introduced by:
> 
>   commit 28ec711cd427f8b61f73712a43b8100ba8ca933b
>   Author: David Herrmann <dh.herrmann at gmail.com>
>   Date:   Sat Jul 27 16:37:00 2013 +0200
> 
>       drm/agp: move AGP cleanup paths to drm_agpsupport.c

Tested-by: Stephen Warren <swarren at nvidia.com>