linux-kernel - [PATCH for-next 13/32] scsi: hptiop: Replace spin_lock_irqsave with spin

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Date:   Sun, 7 Feb 2021 19:36:44 +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 13/32] scsi: hptiop: 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/hptiop.c | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

diff --git a/drivers/scsi/hptiop.c b/drivers/scsi/hptiop.c
index db4c7a7..5424e31 100644
--- a/drivers/scsi/hptiop.c
+++ b/drivers/scsi/hptiop.c
@@ -834,11 +834,10 @@ static irqreturn_t hptiop_intr(int irq, void *dev_id)
 {
 	struct hptiop_hba  *hba = dev_id;
 	int  handled;
-	unsigned long flags;
 
-	spin_lock_irqsave(hba->host->host_lock, flags);
+	spin_lock(hba->host->host_lock);
 	handled = hba->ops->iop_intr(hba);
-	spin_unlock_irqrestore(hba->host->host_lock, flags);
+	spin_unlock(hba->host->host_lock);
 
 	return handled;
 }
-- 
2.8.1