linux-kernel - [PATCH] dmaengine: mv_xor_v2: move spin_lock_bh to spin

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Message-Id: <20220418141940.1241482-1-yuyunbo519@gmail.com>
Date:   Mon, 18 Apr 2022 22:19:40 +0800
From:   Yunbo Yu <yuyunbo519@...il.com>
To:     vkoul@...nel.org
Cc:     dmaengine@...r.kernel.org, linux-kernel@...r.kernel.org,
        Yunbo Yu <yuyunbo519@...il.com>
Subject: [PATCH] dmaengine: mv_xor_v2: move spin_lock_bh to spin_lock

It is unnecessary to call spin_lock_bh() for that you are already in a
taselet.

Signed-off-by: Yunbo Yu <yuyunbo519@...il.com>
---
 drivers/dma/mv_xor_v2.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/dma/mv_xor_v2.c b/drivers/dma/mv_xor_v2.c
index 9c8b4084ba2f..f10b29034da1 100644
--- a/drivers/dma/mv_xor_v2.c
+++ b/drivers/dma/mv_xor_v2.c
@@ -591,14 +591,14 @@ static void mv_xor_v2_tasklet(struct tasklet_struct *t)
 		dma_run_dependencies(&next_pending_sw_desc->async_tx);
 
 		/* Lock the channel */
-		spin_lock_bh(&xor_dev->lock);
+		spin_lock(&xor_dev->lock);
 
 		/* add the SW descriptor to the free descriptors list */
 		list_add(&next_pending_sw_desc->free_list,
 			 &xor_dev->free_sw_desc);
 
 		/* Release the channel */
-		spin_unlock_bh(&xor_dev->lock);
+		spin_unlock(&xor_dev->lock);
 
 		/* increment the next descriptor */
 		pending_ptr++;
-- 
2.25.1