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dma-buf: warn about containers in dma_resv object

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

Signed-off-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Reviewed-by: Thomas Hellström <thomas.hellstrom@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20220204100429.2049-5-christian.koenig@amd.com
This commit is contained in:
Christian König 2022-01-19 14:39:39 +01:00
parent 270b48bb8d
commit 68129f431f
1 changed files with 5 additions and 0 deletions
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5
drivers/dma-buf/dma-resv.c
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@ -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;