From ba5049945421b8d2f3e2af786a15d13b82316503 Mon Sep 17 00:00:00 2001 From: Cyrille Pitchen Date: Thu, 24 Mar 2016 15:40:04 +0100 Subject: [PATCH] net: macb: replace macb_writel() call by queue_writel() to update queue ISR macb_interrupt() should not use macb_writel(bp, ISR, ) but only queue_writel(queue, ISR, ). There is one IRQ and one set of {ISR, IER, IDR, IMR} [1] registers per queue on gem hardware, though only queue0 is actually used for now to receive frames: other queues can already be used to transmit frames. The queue_readl() and queue_writel() helper macros are designed to access the relevant IRQ registers. [1] ISR: Interrupt Status Register IER: Interrupt Enable Register IDR: Interrupt Disable Register IMR: Interrupt Mask Register Signed-off-by: Cyrille Pitchen Fixes: bfbb92c44670 ("net: macb: Handle the RXUBR interrupt on all devices") Acked-by: Nicolas Ferre Signed-off-by: David S. Miller --- drivers/net/ethernet/cadence/macb.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/net/ethernet/cadence/macb.c b/drivers/net/ethernet/cadence/macb.c index 6619178ed77b..f715352a9b85 100644 --- a/drivers/net/ethernet/cadence/macb.c +++ b/drivers/net/ethernet/cadence/macb.c @@ -1100,7 +1100,7 @@ static irqreturn_t macb_interrupt(int irq, void *dev_id) macb_writel(bp, NCR, ctrl | MACB_BIT(RE)); if (bp->caps & MACB_CAPS_ISR_CLEAR_ON_WRITE) - macb_writel(bp, ISR, MACB_BIT(RXUBR)); + queue_writel(queue, ISR, MACB_BIT(RXUBR)); } if (status & MACB_BIT(ISR_ROVR)) { -- 2.20.1