Commit 68129f43 authored by Christian König's avatar Christian König
Browse files

dma-buf: warn about containers in dma_resv object 



Drivers should not add containers as shared fences to the dma_resv
object, instead each fence should be added individually.

Signed-off-by: default avatarChristian König <christian.koenig@amd.com>
Reviewed-by: default avatarDaniel Vetter <daniel.vetter@ffwll.ch>
Reviewed-by: default avatarThomas Hellström <thomas.hellstrom@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20220204100429.2049-5-christian.koenig@amd.com
parent 270b48bb

drivers/dma-buf/dma-resv.c

+5 −0
Original line number Diff line number Diff line
@@ -256,6 +256,11 @@ void dma_resv_add_shared_fence(struct dma_resv *obj, struct dma_fence *fence) 


	dma_resv_assert_held(obj);



	/* Drivers should not add containers here, instead add each fence

	 * individually.

	 */

	WARN_ON(dma_fence_is_container(fence));



	fobj = dma_resv_shared_list(obj);

	count = fobj->shared_count;