On Fri, May 06, 2022 at 04:10:07PM +0200, Christian König wrote:
dma_fence_chain containers cleanup signaled fences automatically, so filter those out from arrays as well.
v2: fix missing walk over the array v3: massively simplify the patch and actually update the description.
Signed-off-by: Christian König christian.koenig@amd.com
Reviewed-by: Daniel Vetter daniel.vetter@ffwll.ch
include/linux/dma-fence-unwrap.h | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-)
diff --git a/include/linux/dma-fence-unwrap.h b/include/linux/dma-fence-unwrap.h index e7c219da4ed7..a4d342fef8e0 100644 --- a/include/linux/dma-fence-unwrap.h +++ b/include/linux/dma-fence-unwrap.h @@ -43,9 +43,13 @@ struct dma_fence *dma_fence_unwrap_next(struct dma_fence_unwrap *cursor);
- Unwrap dma_fence_chain and dma_fence_array containers and deep dive into all
- potential fences in them. If @head is just a normal fence only that one is
- returned.
- Note that signalled fences are opportunistically filtered out, which
*/
- means the iteration is potentially over no fence at all.
#define dma_fence_unwrap_for_each(fence, cursor, head) \ for (fence = dma_fence_unwrap_first(head, cursor); fence; \
fence = dma_fence_unwrap_next(cursor))
fence = dma_fence_unwrap_next(cursor)) \if (!dma_fence_is_signaled(fence))#endif
2.25.1