[PATCH] spi: lantiq: remove redundant irqsave and irqrestore in hardIRQ

[Barry Song <song.bao.hua@xxxxxxxxxxxxx>]

Running in hardIRQ, disabling irq is redundant.

Signed-off-by: Barry Song <song.bao.hua@xxxxxxxxxxxxx>
---
 drivers/spi/spi-lantiq-ssc.c | 12 +++++-------
 1 file changed, 5 insertions(+), 7 deletions(-)

diff --git a/drivers/spi/spi-lantiq-ssc.c b/drivers/spi/spi-lantiq-ssc.c
index 3cbecb2d8fc0..bcb52601804a 100644
--- a/drivers/spi/spi-lantiq-ssc.c
+++ b/drivers/spi/spi-lantiq-ssc.c
@@ -625,9 +625,8 @@ static irqreturn_t lantiq_ssc_xmit_interrupt(int irq, void *data)
 	struct lantiq_ssc_spi *spi = data;
 	const struct lantiq_ssc_hwcfg *hwcfg = spi->hwcfg;
 	u32 val = lantiq_ssc_readl(spi, hwcfg->irncr);
-	unsigned long flags;
 
-	spin_lock_irqsave(&spi->lock, flags);
+	spin_lock(&spi->lock);
 	if (hwcfg->irq_ack)
 		lantiq_ssc_writel(spi, val, hwcfg->irncr);
 
@@ -652,12 +651,12 @@ static irqreturn_t lantiq_ssc_xmit_interrupt(int irq, void *data)
 		}
 	}
 
-	spin_unlock_irqrestore(&spi->lock, flags);
+	spin_unlock(&spi->lock);
 	return IRQ_HANDLED;
 
 completed:
 	queue_work(spi->wq, &spi->work);
-	spin_unlock_irqrestore(&spi->lock, flags);
+	spin_unlock(&spi->lock);
 
 	return IRQ_HANDLED;
 }
@@ -668,12 +667,11 @@ static irqreturn_t lantiq_ssc_err_interrupt(int irq, void *data)
 	const struct lantiq_ssc_hwcfg *hwcfg = spi->hwcfg;
 	u32 stat = lantiq_ssc_readl(spi, LTQ_SPI_STAT);
 	u32 val = lantiq_ssc_readl(spi, hwcfg->irncr);
-	unsigned long flags;
 
 	if (!(stat & LTQ_SPI_STAT_ERRORS))
 		return IRQ_NONE;
 
-	spin_lock_irqsave(&spi->lock, flags);
+	spin_lock(&spi->lock);
 	if (hwcfg->irq_ack)
 		lantiq_ssc_writel(spi, val, hwcfg->irncr);
 
@@ -697,7 +695,7 @@ static irqreturn_t lantiq_ssc_err_interrupt(int irq, void *data)
 	if (spi->master->cur_msg)
 		spi->master->cur_msg->status = -EIO;
 	queue_work(spi->wq, &spi->work);
-	spin_unlock_irqrestore(&spi->lock, flags);
+	spin_unlock(&spi->lock);
 
 	return IRQ_HANDLED;
 }
-- 
2.25.1