linux-kernel - [patch net-next] net: hns: add skb_reset_mac

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Message-ID: <1465821682-223053-1-git-send-email-Yisen.Zhuang@huawei.com>
Date:	Mon, 13 Jun 2016 20:41:22 +0800
From:	Yisen Zhuang <Yisen.Zhuang@...wei.com>
To:	<davem@...emloft.net>, <arnd@...db.de>
CC:	<charles.chenxin@...wei.com>, <netdev@...r.kernel.org>,
	<linux-kernel@...r.kernel.org>, <linuxarm@...wei.com>
Subject: [patch net-next] net: hns: add skb_reset_mac_header() after skb being alloc

From: Kejian Yan <yankejian@...wei.com>

HNS receives a packet without doing anything, but it should call
skb_reset_mac_header() to initialize the header before using
eth_hdr().

Fixes: 0d6b425a3773c3445b0f51b2f333821beaacb619
Signed-off-by: Kejian Yan <yankejian@...wei.com>
Signed-off-by: Yisen Zhuang <Yisen.Zhuang@...wei.com>
---
 drivers/net/ethernet/hisilicon/hns/hns_enet.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/net/ethernet/hisilicon/hns/hns_enet.c b/drivers/net/ethernet/hisilicon/hns/hns_enet.c
index ad742a6..15200e4 100644
--- a/drivers/net/ethernet/hisilicon/hns/hns_enet.c
+++ b/drivers/net/ethernet/hisilicon/hns/hns_enet.c
@@ -600,6 +600,7 @@ static int hns_nic_poll_rx_skb(struct hns_nic_ring_data *ring_data,
 		ring->stats.sw_err_cnt++;
 		return -ENOMEM;
 	}
+	skb_reset_mac_header(skb);
 
 	prefetchw(skb->data);
 	length = le16_to_cpu(desc->rx.pkt_len);
-- 
1.9.1