netdev - [PATCH net] net: fsl_ucc_hdlc: replace dev_kfree_skb_irq by dev_consume_skb

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Date:   Wed,  6 Feb 2019 00:14:51 +0800
From:   Yang Wei <albin_yang@....com>
To:     netdev@...r.kernel.org, linuxppc-dev@...ts.ozlabs.org
Cc:     qiang.zhao@....com, davem@...emloft.net, yang.wei9@....com.cn,
        albin_yang@....com
Subject: [PATCH net] net: fsl_ucc_hdlc: 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 hdlc_tx_done() when skb
xmit done. It makes drop profiles(dropwatch, perf) more friendly.

Signed-off-by: Yang Wei <yang.wei9@....com.cn>
---
 drivers/net/wan/fsl_ucc_hdlc.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/wan/fsl_ucc_hdlc.c b/drivers/net/wan/fsl_ucc_hdlc.c
index 66d889d..a08f04c 100644
--- a/drivers/net/wan/fsl_ucc_hdlc.c
+++ b/drivers/net/wan/fsl_ucc_hdlc.c
@@ -482,7 +482,7 @@ static int hdlc_tx_done(struct ucc_hdlc_private *priv)
 		memset(priv->tx_buffer +
 		       (be32_to_cpu(bd->buf) - priv->dma_tx_addr),
 		       0, skb->len);
-		dev_kfree_skb_irq(skb);
+		dev_consume_skb_irq(skb);
 
 		priv->tx_skbuff[priv->skb_dirtytx] = NULL;
 		priv->skb_dirtytx =
-- 
2.7.4