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[for-next,12/32] scsi: gvp11: Replace spin_lock_irqsave with spin_lock in hard IRQ

Message ID 1612697823-8073-13-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/gvp11.c | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)
diff mbox series

Patch

diff --git a/drivers/scsi/gvp11.c b/drivers/scsi/gvp11.c
index 727f8c8..f164a68 100644
--- a/drivers/scsi/gvp11.c
+++ b/drivers/scsi/gvp11.c
@@ -29,14 +29,13 @@  static irqreturn_t gvp11_intr(int irq, void *data)
 	struct Scsi_Host *instance = data;
 	struct gvp11_hostdata *hdata = shost_priv(instance);
 	unsigned int status = hdata->regs->CNTR;
-	unsigned long flags;
 
 	if (!(status & GVP11_DMAC_INT_PENDING))
 		return IRQ_NONE;
 
-	spin_lock_irqsave(instance->host_lock, flags);
+	spin_lock(instance->host_lock);
 	wd33c93_intr(instance);
-	spin_unlock_irqrestore(instance->host_lock, flags);
+	spin_unlock(instance->host_lock);
 	return IRQ_HANDLED;
 }