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drm/i915: Allow ggtt lookups to not WARN

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To be able to effectively use the GGTT object lookup function, we don't
want to warn when there is no GGTT mapping. Let the caller deal with it
instead.

Originally, I had intended to have this behavior, and has not
introduced the WARN. It was introduced during review with the addition
of the follow commit

commit 5c2abbeab7
Author: Ben Widawsky <benjamin.widawsky@intel.com>
Date:   Tue Sep 24 09:57:57 2013 -0700

    drm/i915: Provide a cheap ggtt vma lookup

Signed-off-by: Ben Widawsky <ben@bwidawsk.net>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
This commit is contained in:
Ben Widawsky 2013-12-06 14:10:49 -08:00 committed by Daniel Vetter
parent 6f425321e0
commit 6e164c3382
1 changed files with 1 additions and 1 deletions
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2
drivers/gpu/drm/i915/i915_gem.c
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@ -5073,7 +5073,7 @@ struct i915_vma *i915_gem_obj_to_ggtt(struct drm_i915_gem_object *obj)
return NULL;
vma = list_first_entry(&obj->vma_list, typeof(*vma), vma_link);
if (WARN_ON(vma->vm != obj_to_ggtt(obj)))
if (vma->vm != obj_to_ggtt(obj))
return NULL;
return vma;