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Commit 61894b02 authored by Chris Wilson's avatar Chris Wilson Committed by Gustavo Padovan
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dma-buf/sw-sync: Fix the is-signaled test to handle u32 wraparound 



Use the canonical __dma_fence_is_later() to compare the fence seqno
against the timeline seqno to check if the fence is signaled.

Signed-off-by: default avatarChris Wilson <chris@chris-wilson.co.uk>
Cc: Sumit Semwal <sumit.semwal@linaro.org>
Cc: Sean Paul <seanpaul@chromium.org>
Cc: Gustavo Padovan <gustavo@padovan.org>
Reviewed-by: default avatarSean Paul <seanpaul@chromium.org>
Signed-off-by: default avatarGustavo Padovan <gustavo.padovan@collabora.com>
Link: http://patchwork.freedesktop.org/patch/msgid/20170629125930.821-2-chris@chris-wilson.co.uk
parent 81114776

drivers/dma-buf/sw_sync.c

+1 −1
Original line number Diff line number Diff line
@@ -219,7 +219,7 @@ static bool timeline_fence_signaled(struct dma_fence *fence) 
{

	struct sync_timeline *parent = dma_fence_parent(fence);



	return (fence->seqno > parent->value) ? false : true;

	return !__dma_fence_is_later(fence->seqno, parent->value);

}



static bool timeline_fence_enable_signaling(struct dma_fence *fence)