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authorChris Wilson <chris@chris-wilson.co.uk>2017-06-29 15:59:25 +0300
committerGustavo Padovan <gustavo.padovan@collabora.com>2017-06-30 00:51:49 +0300
commit61894b02716f122dd7662d5d89f5b2245ca551e2 (patch)
tree282b785ae90f6512e4a056f2152fd66ef08b9d96 /drivers
parent8111477663813caa1a4469cfe6afaae36cd04513 (diff)
downloadlinux-61894b02716f122dd7662d5d89f5b2245ca551e2.tar.xz
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')
-rw-r--r--drivers/dma-buf/sw_sync.c2
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)