linux-kernel - [PATCH 2/3] dmaengine: mv_xor: move spin_lock_bh to spin

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Message-Id: <1534510922-7735-1-git-send-email-21cnbao@gmail.com>
Date:   Fri, 17 Aug 2018 06:02:02 -0700
From:   Barry Song <21cnbao@...il.com>
To:     dan.j.williams@...el.com, vkoul@...nel.org,
        dmaengine@...r.kernel.org, linux-kernel@...r.kernel.org
Cc:     Barry Song <21cnbao@...il.com>
Subject: [PATCH 2/3] dmaengine: mv_xor: move spin_lock_bh to spin_lock in tasklet

as you are already in a tasklet, it is unnecessary to call spin_lock_bh.

Signed-off-by: Barry Song <21cnbao@...il.com>
---
 drivers/dma/mv_xor.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/dma/mv_xor.c b/drivers/dma/mv_xor.c
index 969534c..7f59535 100644
--- a/drivers/dma/mv_xor.c
+++ b/drivers/dma/mv_xor.c
@@ -348,9 +348,9 @@ static void mv_xor_tasklet(unsigned long data)
 {
 	struct mv_xor_chan *chan = (struct mv_xor_chan *) data;
 
-	spin_lock_bh(&chan->lock);
+	spin_lock(&chan->lock);
 	mv_chan_slot_cleanup(chan);
-	spin_unlock_bh(&chan->lock);
+	spin_unlock(&chan->lock);
 }
 
 static struct mv_xor_desc_slot *
-- 
2.7.4