linux-kernel - [PATCH v4 1/6] dma-buf: Remove the signaled bit status check

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Date:   Wed, 14 Sep 2022 22:13:16 +0530
From:   Arvind Yadav <Arvind.Yadav@....com>
To:     <Christian.Koenig@....com>, <andrey.grodzovsky@....com>,
        <shashank.sharma@....com>, <amaranath.somalapuram@....com>,
        <Arunpravin.PaneerSelvam@....com>, <sumit.semwal@...aro.org>,
        <gustavo@...ovan.org>, <airlied@...ux.ie>, <daniel@...ll.ch>,
        <linux-media@...r.kernel.org>, <dri-devel@...ts.freedesktop.org>,
        <linaro-mm-sig@...ts.linaro.org>, <linux-kernel@...r.kernel.org>
CC:     Arvind Yadav <Arvind.Yadav@....com>,
        Christian König <christian.koenig@....com>
Subject: [PATCH v4 1/6] dma-buf: Remove the signaled bit status check

Remove the signaled bit status check because it is returning
early when the fence is already signaled and
__dma_fence_enable_signaling is checking the status of signaled
bit again.

Signed-off-by: Arvind Yadav <Arvind.Yadav@....com>
Reviewed-by: Christian König <christian.koenig@....com>
---

Changes in v1, v2: This new patch was not part of previous series.

---

 drivers/dma-buf/dma-fence.c | 3 ---
 1 file changed, 3 deletions(-)

diff --git a/drivers/dma-buf/dma-fence.c b/drivers/dma-buf/dma-fence.c
index 066400ed8841..64c99739ad23 100644
--- a/drivers/dma-buf/dma-fence.c
+++ b/drivers/dma-buf/dma-fence.c
@@ -601,9 +601,6 @@ void dma_fence_enable_sw_signaling(struct dma_fence *fence)
 {
 	unsigned long flags;
 
-	if (test_bit(DMA_FENCE_FLAG_SIGNALED_BIT, &fence->flags))
-		return;
-
 	spin_lock_irqsave(fence->lock, flags);
 	__dma_fence_enable_signaling(fence);
 	spin_unlock_irqrestore(fence->lock, flags);
-- 
2.25.1