linux-kernel - [PATCH for-next 06/32] scsi: a100u2w: Replace spin_lock_irqsave with spin

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Date:   Sun, 7 Feb 2021 19:36:37 +0800
From:   Xiaofei Tan <tanxiaofei@...wei.com>
To:     <jejb@...ux.ibm.com>, <martin.petersen@...cle.com>
CC:     <linux-scsi@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
        <linuxarm@...neuler.org>, Xiaofei Tan <tanxiaofei@...wei.com>
Subject: [PATCH for-next 06/32] scsi: a100u2w: Replace spin_lock_irqsave with spin_lock in hard IRQ

It is redundant to do irqsave and irqrestore in hardIRQ context, where
it has been in a irq-disabled context.

Signed-off-by: Xiaofei Tan <tanxiaofei@...wei.com>
---
 drivers/scsi/a100u2w.c | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

diff --git a/drivers/scsi/a100u2w.c b/drivers/scsi/a100u2w.c
index 66c5143..bcb7de6 100644
--- a/drivers/scsi/a100u2w.c
+++ b/drivers/scsi/a100u2w.c
@@ -1058,12 +1058,11 @@ static irqreturn_t inia100_intr(int irqno, void *devid)
 {
 	struct Scsi_Host *shost = (struct Scsi_Host *)devid;
 	struct orc_host *host = (struct orc_host *)shost->hostdata;
-	unsigned long flags;
 	irqreturn_t res;
 
-	spin_lock_irqsave(shost->host_lock, flags);
+	spin_lock(shost->host_lock);
 	res = orc_interrupt(host);
-	spin_unlock_irqrestore(shost->host_lock, flags);
+	spin_unlock(shost->host_lock);
 
 	return res;
 }
-- 
2.8.1