From 7349201d9dfe0420489aa551c2dcc80fd6364799 Mon Sep 17 00:00:00 2001 From: Barry Song <song.bao.hua@hisilicon.com> Date: Wed, 16 Sep 2020 22:10:42 +1200 Subject: [PATCH] spi: lantiq: remove redundant irqsave and irqrestore in hardIRQ Running in hardIRQ, disabling irq is redundant. Signed-off-by: Barry Song <song.bao.hua@hisilicon.com> Link: https://lore.kernel.org/r/20200916101042.21860-1-song.bao.hua@hisilicon.com Signed-off-by: Mark Brown <broonie@kernel.org> --- 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 3cbecb2d8fc09..bcb52601804a9 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; } -- 2.30.2