Running in hardIRQ, disabling IRQ is redundant since hardIRQ has disabled
IRQ. This patch removes the irqsave and irqstore to save some instruction
cycles.
Acked-by: Peter Ujfalusi <peter.ujfalusi@xxxxxx>
Signed-off-by: Barry Song <song.bao.hua@xxxxxxxxxxxxx>
---
drivers/dma/ti/k3-udma.c | 10 ++++------
1 file changed, 4 insertions(+), 6 deletions(-)
diff --git a/drivers/dma/ti/k3-udma.c b/drivers/dma/ti/k3-udma.c
index 82cf6c77f5c9..e508280b3d70 100644
--- a/drivers/dma/ti/k3-udma.c
+++ b/drivers/dma/ti/k3-udma.c
@@ -1020,13 +1020,12 @@ static irqreturn_t udma_ring_irq_handler(int irq, void *data)
{
struct udma_chan *uc = data;
struct udma_desc *d;
- unsigned long flags;
dma_addr_t paddr = 0;
if (udma_pop_from_ring(uc, &paddr) || !paddr)
return IRQ_HANDLED;
- spin_lock_irqsave(&uc->vc.lock, flags);
+ spin_lock(&uc->vc.lock);
/* Teardown completion message */
if (cppi5_desc_is_tdcm(paddr)) {
@@ -1077,7 +1076,7 @@ static irqreturn_t udma_ring_irq_handler(int irq, void *data)
}
}
out:
- spin_unlock_irqrestore(&uc->vc.lock, flags);
+ spin_unlock(&uc->vc.lock);
return IRQ_HANDLED;
}
@@ -1086,9 +1085,8 @@ static irqreturn_t udma_udma_irq_handler(int irq, void *data)
{
struct udma_chan *uc = data;
struct udma_desc *d;
- unsigned long flags;
- spin_lock_irqsave(&uc->vc.lock, flags);
+ spin_lock(&uc->vc.lock);
d = uc->desc;
if (d) {
d->tr_idx = (d->tr_idx + 1) % d->sglen;
@@ -1103,7 +1101,7 @@ static irqreturn_t udma_udma_irq_handler(int irq, void *data)
}
}
- spin_unlock_irqrestore(&uc->vc.lock, flags);
+ spin_unlock(&uc->vc.lock);
return IRQ_HANDLED;
}
--
2.25.1
