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[for-next,28/32] scsi: sgiwd93: Replace spin_lock_irqsave with spin_lock in hard IRQ

Message ID 1612697823-8073-29-git-send-email-tanxiaofei@huawei.com
State New
Headers show
Series spin lock usage optimization for SCSI drivers | expand

Commit Message

Xiaofei Tan Feb. 7, 2021, 11:36 a.m. UTC
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@huawei.com>
---
 drivers/scsi/sgiwd93.c | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)
diff mbox series

Patch

diff --git a/drivers/scsi/sgiwd93.c b/drivers/scsi/sgiwd93.c
index cf1030c..21165bd 100644
--- a/drivers/scsi/sgiwd93.c
+++ b/drivers/scsi/sgiwd93.c
@@ -53,11 +53,10 @@  struct hpc_chunk {
 static irqreturn_t sgiwd93_intr(int irq, void *dev_id)
 {
 	struct Scsi_Host * host = dev_id;
-	unsigned long flags;
 
-	spin_lock_irqsave(host->host_lock, flags);
+	spin_lock(host->host_lock);
 	wd33c93_intr(host);
-	spin_unlock_irqrestore(host->host_lock, flags);
+	spin_unlock(host->host_lock);
 
 	return IRQ_HANDLED;
 }