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 4d1509f..0d6288d 100644 (file)
--- 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);