netdev - [PATCH net] net: dlink: sundance: replace dev_kfree_skb_irq by dev_consume_skb

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Date:   Wed, 13 Feb 2019 23:12:02 +0800
From:   Yang Wei <albin_yang@....com>
To:     netdev@...r.kernel.org
Cc:     kda@...ux-powerpc.org, davem@...emloft.net, yang.wei9@....com.cn,
        albin_yang@....com
Subject: [PATCH net] net: dlink: sundance: replace dev_kfree_skb_irq by dev_consume_skb_irq for drop profiles

From: Yang Wei <yang.wei9@....com.cn>

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

Remove a redundant blank line in intr_handler().

Signed-off-by: Yang Wei <yang.wei9@....com.cn>
---
 drivers/net/ethernet/dlink/sundance.c | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

diff --git a/drivers/net/ethernet/dlink/sundance.c b/drivers/net/ethernet/dlink/sundance.c
index 1a27176..4a37a69 100644
--- a/drivers/net/ethernet/dlink/sundance.c
+++ b/drivers/net/ethernet/dlink/sundance.c
@@ -1193,7 +1193,6 @@ static irqreturn_t intr_handler(int irq, void *dev_instance)
 	int handled = 0;
 	int i;
 
-
 	do {
 		int intr_status = ioread16(ioaddr + IntrStatus);
 		iowrite16(intr_status, ioaddr + IntrStatus);
@@ -1286,7 +1285,7 @@ static irqreturn_t intr_handler(int irq, void *dev_instance)
 				dma_unmap_single(&np->pci_dev->dev,
 					le32_to_cpu(np->tx_ring[entry].frag[0].addr),
 					skb->len, DMA_TO_DEVICE);
-				dev_kfree_skb_irq (np->tx_skbuff[entry]);
+				dev_consume_skb_irq(np->tx_skbuff[entry]);
 				np->tx_skbuff[entry] = NULL;
 				np->tx_ring[entry].frag[0].addr = 0;
 				np->tx_ring[entry].frag[0].length = 0;
@@ -1305,7 +1304,7 @@ static irqreturn_t intr_handler(int irq, void *dev_instance)
 				dma_unmap_single(&np->pci_dev->dev,
 					le32_to_cpu(np->tx_ring[entry].frag[0].addr),
 					skb->len, DMA_TO_DEVICE);
-				dev_kfree_skb_irq (np->tx_skbuff[entry]);
+				dev_consume_skb_irq(np->tx_skbuff[entry]);
 				np->tx_skbuff[entry] = NULL;
 				np->tx_ring[entry].frag[0].addr = 0;
 				np->tx_ring[entry].frag[0].length = 0;
-- 
2.7.4