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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: Chris 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: Sean Paul <seanpaul@chromium.org>
Signed-off-by: Gustavo Padovan <gustavo.padovan@collabora.com>
Link: http://patchwork.freedesktop.org/patch/msgid/20170629125930.821-2-chris@chris-wilson.co.uk
This commit is contained in:
Chris Wilson 2017-06-29 13:59:25 +01:00 committed by Gustavo Padovan
parent 8111477663
commit 61894b0271
1 changed files with 1 additions and 1 deletions
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2
drivers/dma-buf/sw_sync.c
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@ -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)