[RFCv4,14/14] HACK: drm: allow FB's in drm_mode_object_find

Commit Message

Rob Clark Nov. 25, 2013, 2:47 p.m. UTC

Ugg.. we do actually want to permit FB's in atomic case, since FB will
be looked up like any other object property value.

Currently we do the FB refcnt'ing dance in atomic->commit(), and would
rather not have to special case FB's or collect an FB ref when we look
up the property.  Not sure if it is better to rework the atomic FB
refcnt'ing or loosen this restriction?
---
 drivers/gpu/drm/drm_crtc.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

Patch

diff --git a/drivers/gpu/drm/drm_crtc.c b/drivers/gpu/drm/drm_crtc.c
index 8158250..e57b7eb 100644
--- a/drivers/gpu/drm/drm_crtc.c
+++ b/drivers/gpu/drm/drm_crtc.c
@@ -441,7 +441,7 @@  struct drm_mode_object *drm_mode_object_find(struct drm_device *dev,
 
 	/* Framebuffers are reference counted and need their own lookup
 	 * function.*/
-	WARN_ON(type == DRM_MODE_OBJECT_FB);
+//	WARN_ON(type == DRM_MODE_OBJECT_FB);
 
 	mutex_lock(&dev->mode_config.idr_mutex);
 	obj = idr_find(&dev->mode_config.crtc_idr, id);