linux-kernel - [PATCH] scsi: BusLogic: move spin_lock_irqsave to spin

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Message-Id: <20220822143919.17778-1-91tuocao@gmail.com>
Date:   Mon, 22 Aug 2022 22:39:19 +0800
From:   Tuo Cao <91tuocao@...il.com>
To:     khalid@...ehiking.org, jejb@...ux.ibm.com,
        martin.petersen@...cle.com
Cc:     linux-scsi@...r.kernel.org, linux-kernel@...r.kernel.org,
        91tuocao@...il.com
Subject: [PATCH] scsi: BusLogic: move spin_lock_irqsave to spin_lock in interrupt handler

it is unnecessary to call spin_lock_irqsave in a interrupt handler.

Signed-off-by: Tuo Cao <91tuocao@...il.com>
---
 drivers/scsi/BusLogic.c | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

diff --git a/drivers/scsi/BusLogic.c b/drivers/scsi/BusLogic.c
index f2abffce2659..e2eb020966cd 100644
--- a/drivers/scsi/BusLogic.c
+++ b/drivers/scsi/BusLogic.c
@@ -2739,11 +2739,10 @@ static void blogic_process_ccbs(struct blogic_adapter *adapter)
 static irqreturn_t blogic_inthandler(int irq_ch, void *devid)
 {
 	struct blogic_adapter *adapter = (struct blogic_adapter *) devid;
-	unsigned long processor_flag;
 	/*
 	   Acquire exclusive access to Host Adapter.
 	 */
-	spin_lock_irqsave(adapter->scsi_host->host_lock, processor_flag);
+	spin_lock(adapter->scsi_host->host_lock);
 	/*
 	   Handle Interrupts appropriately for each Host Adapter type.
 	 */
@@ -2811,7 +2810,7 @@ static irqreturn_t blogic_inthandler(int irq_ch, void *devid)
 	/*
 	   Release exclusive access to Host Adapter.
 	 */
-	spin_unlock_irqrestore(adapter->scsi_host->host_lock, processor_flag);
+	spin_unlock(adapter->scsi_host->host_lock);
 	return IRQ_HANDLED;
 }
 
-- 
2.17.1