From 654115e3f62671a6b8bcee702697dbdfc6fce1a3 Mon Sep 17 00:00:00 2001 From: Barry Song Date: Wed, 28 Oct 2020 10:52:46 +1300 Subject: dmaengine: tegra210-adma: remove redundant irqsave and irqrestore in hardIRQ Running in hardIRQ, disabling IRQ is redundant since hardIRQ has disabled IRQ. This patch removes the irqsave and irqstore to save some instruction cycles. Signed-off-by: Barry Song Acked-by: Jon Hunter Cc: Laxman Dewangan Cc: Thierry Reding Link: https://lore.kernel.org/r/20201027215252.25820-5-song.bao.hua@hisilicon.com Signed-off-by: Vinod Koul --- drivers/dma/tegra210-adma.c | 7 +++---- 1 file changed, 3 insertions(+), 4 deletions(-) (limited to 'drivers') diff --git a/drivers/dma/tegra210-adma.c b/drivers/dma/tegra210-adma.c index c5fa2ef74abc..4735742e826d 100644 --- a/drivers/dma/tegra210-adma.c +++ b/drivers/dma/tegra210-adma.c @@ -408,19 +408,18 @@ static irqreturn_t tegra_adma_isr(int irq, void *dev_id) { struct tegra_adma_chan *tdc = dev_id; unsigned long status; - unsigned long flags; - spin_lock_irqsave(&tdc->vc.lock, flags); + spin_lock(&tdc->vc.lock); status = tegra_adma_irq_clear(tdc); if (status == 0 || !tdc->desc) { - spin_unlock_irqrestore(&tdc->vc.lock, flags); + spin_unlock(&tdc->vc.lock); return IRQ_NONE; } vchan_cyclic_callback(&tdc->desc->vd); - spin_unlock_irqrestore(&tdc->vc.lock, flags); + spin_unlock(&tdc->vc.lock); return IRQ_HANDLED; } -- cgit v1.2.3