drm/i915: less magic for stolen preallocated objects w/o gtt offset
A magic -1 is a obscure, especially since it's actually passed as an unsigned, so depends upon the magic sign extension rules in C. This has been added in commit 3727d55e Author: Jesse Barnes <jbarnes@virtuousgeek.org> Date: Wed May 8 10:45:14 2013 -0700 drm/i915: allow stolen, pre-allocated objects to avoid GTT allocation v2 Use a proper #define instead. Spotted while reviewing Ben's drm_mm_create_block changes. v2: Cast the constant to u32 since otherwise we again have a type mismatch. Suggested by Chris Wilson. Cc: Ben Widawsky <ben@bwidawsk.net> Cc: Jesse Barnes <jbarnes@virtuousgeek.org> Reviewed-by: NChris Wilson <chris@chris-wilson.co.uk> Signed-off-by: NDaniel Vetter <daniel.vetter@ffwll.ch>
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