From: Yang Wei <yang.wei9@zte.com.cn>
Date: Tue, 12 Feb 2019 16:00:02 +0000 (+0800)
Subject: net: macb: replace dev_kfree_skb_irq by dev_consume_skb_irq for drop profiles
X-Git-Tag: v5.1-rc1~178^2~243
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=b9560a22a440a8813e613226c730d38cbbdb39eb;p=thirdparty%2Flinux.git

net: macb: replace dev_kfree_skb_irq by dev_consume_skb_irq for drop profiles

dev_consume_skb_irq() should be called in at91ether_interrupt() when
skb xmit done. It makes drop profiles(dropwatch, perf) more friendly.

Signed-off-by: Yang Wei <yang.wei9@zte.com.cn>
Reviewed-by: Claudiu Beznea <claudiu.beznea@microchip.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---

diff --git a/drivers/net/ethernet/cadence/macb_main.c b/drivers/net/ethernet/cadence/macb_main.c
index 4d1509f431d77..0d6288dd609a3 100644
--- a/drivers/net/ethernet/cadence/macb_main.c
+++ b/drivers/net/ethernet/cadence/macb_main.c
@@ -3763,7 +3763,7 @@ static irqreturn_t at91ether_interrupt(int irq, void *dev_id)
 			dev->stats.tx_errors++;
 
 		if (lp->skb) {
-			dev_kfree_skb_irq(lp->skb);
+			dev_consume_skb_irq(lp->skb);
 			lp->skb = NULL;
 			dma_unmap_single(&lp->pdev->dev, lp->skb_physaddr,
 					 lp->skb_length, DMA_TO_DEVICE);