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| author | Chris Wilson <chris@chris-wilson.co.uk> | 2017-06-29 13:59:25 +0100 |
|---|---|---|
| committer | Gustavo Padovan <gustavo.padovan@collabora.com> | 2017-06-29 18:51:49 -0300 |
| commit | 61894b02716f122dd7662d5d89f5b2245ca551e2 (patch) | |
| tree | 282b785ae90f6512e4a056f2152fd66ef08b9d96 /drivers/dma-buf | |
| parent | 8111477663813caa1a4469cfe6afaae36cd04513 (diff) | |
| download | lwn-61894b02716f122dd7662d5d89f5b2245ca551e2.tar.gz lwn-61894b02716f122dd7662d5d89f5b2245ca551e2.zip | |
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
Diffstat (limited to 'drivers/dma-buf')
| -rw-r--r-- | drivers/dma-buf/sw_sync.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/dma-buf/sw_sync.c b/drivers/dma-buf/sw_sync.c index 69c5ff36e2f9..4d5d8c5e2534 100644 --- a/drivers/dma-buf/sw_sync.c +++ b/drivers/dma-buf/sw_sync.c @@ -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) |