[4/6] dma-buf: warn about containers in dma_resv object
Commit Message
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>
---
drivers/dma-buf/dma-resv.c | 5 +++++
1 file changed, 5 insertions(+)
@@ -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;