[PATCH] skd: replace spin_lock_irqsave by spin_lock in hard IRQ

[Tian Tao]

The code has been in a irq-disabled context since it is hard IRQ. There
is no necessity to do it again.

Signed-off-by: Tian Tao <tiant...@hisilicon.com>
---
 drivers/block/skd_main.c | 25 ++++++++++---------------
 1 file changed, 10 insertions(+), 15 deletions(-)

diff --git a/drivers/block/skd_main.c b/drivers/block/skd_main.c
index ae6454c..e80b670 100644
--- a/drivers/block/skd_main.c
+++ b/drivers/block/skd_main.c
@@ -2368,40 +2368,37 @@ static int skd_unquiesce_dev(struct skd_device *skdev)
 static irqreturn_t skd_reserved_isr(int irq, void *skd_host_data)
 {
        struct skd_device *skdev = skd_host_data;
-       unsigned long flags;
 
-       spin_lock_irqsave(&skdev->lock, flags);
+       spin_lock(&skdev->lock);
        dev_dbg(&skdev->pdev->dev, "MSIX = 0x%x\n",
                SKD_READL(skdev, FIT_INT_STATUS_HOST));
        dev_err(&skdev->pdev->dev, "MSIX reserved irq %d = 0x%x\n", irq,
                SKD_READL(skdev, FIT_INT_STATUS_HOST));
        SKD_WRITEL(skdev, FIT_INT_RESERVED_MASK, FIT_INT_STATUS_HOST);
-       spin_unlock_irqrestore(&skdev->lock, flags);
+       spin_unlock(&skdev->lock);
        return IRQ_HANDLED;
 }
 
 static irqreturn_t skd_statec_isr(int irq, void *skd_host_data)
 {
        struct skd_device *skdev = skd_host_data;
-       unsigned long flags;
 
-       spin_lock_irqsave(&skdev->lock, flags);
+       spin_lock(&skdev->lock);
        dev_dbg(&skdev->pdev->dev, "MSIX = 0x%x\n",
                SKD_READL(skdev, FIT_INT_STATUS_HOST));
        SKD_WRITEL(skdev, FIT_ISH_FW_STATE_CHANGE, FIT_INT_STATUS_HOST);
        skd_isr_fwstate(skdev);
-       spin_unlock_irqrestore(&skdev->lock, flags);
+       spin_unlock(&skdev->lock);
        return IRQ_HANDLED;
 }
 
 static irqreturn_t skd_comp_q(int irq, void *skd_host_data)
 {
        struct skd_device *skdev = skd_host_data;
-       unsigned long flags;
        int flush_enqueued = 0;
        int deferred;
 
-       spin_lock_irqsave(&skdev->lock, flags);
+       spin_lock(&skdev->lock);
        dev_dbg(&skdev->pdev->dev, "MSIX = 0x%x\n",
                SKD_READL(skdev, FIT_INT_STATUS_HOST));
        SKD_WRITEL(skdev, FIT_ISH_COMPLETION_POSTED, FIT_INT_STATUS_HOST);
@@ -2415,7 +2412,7 @@ static irqreturn_t skd_comp_q(int irq, void 
*skd_host_data)
        else if (!flush_enqueued)
                schedule_work(&skdev->start_queue);
 
-       spin_unlock_irqrestore(&skdev->lock, flags);
+       spin_unlock(&skdev->lock);
 
        return IRQ_HANDLED;
 }
@@ -2423,27 +2420,25 @@ static irqreturn_t skd_comp_q(int irq, void 
*skd_host_data)
 static irqreturn_t skd_msg_isr(int irq, void *skd_host_data)
 {
        struct skd_device *skdev = skd_host_data;
-       unsigned long flags;
 
-       spin_lock_irqsave(&skdev->lock, flags);
+       spin_lock(&skdev->lock);
        dev_dbg(&skdev->pdev->dev, "MSIX = 0x%x\n",
                SKD_READL(skdev, FIT_INT_STATUS_HOST));
        SKD_WRITEL(skdev, FIT_ISH_MSG_FROM_DEV, FIT_INT_STATUS_HOST);
        skd_isr_msg_from_dev(skdev);
-       spin_unlock_irqrestore(&skdev->lock, flags);
+       spin_unlock(&skdev->lock);
        return IRQ_HANDLED;
 }
 
 static irqreturn_t skd_qfull_isr(int irq, void *skd_host_data)
 {
        struct skd_device *skdev = skd_host_data;
-       unsigned long flags;
 
-       spin_lock_irqsave(&skdev->lock, flags);
+       spin_lock(&skdev->lock);
        dev_dbg(&skdev->pdev->dev, "MSIX = 0x%x\n",
                SKD_READL(skdev, FIT_INT_STATUS_HOST));
        SKD_WRITEL(skdev, FIT_INT_QUEUE_FULL, FIT_INT_STATUS_HOST);
-       spin_unlock_irqrestore(&skdev->lock, flags);
+       spin_unlock(&skdev->lock);
        return IRQ_HANDLED;
 }
 
-- 
2.7.4