linux-kernel - [PATCH for-next 8/8] net: hns: delete redundant broadcast packet filter process

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Date:   Sat, 10 Sep 2016 05:09:30 +0100
From:   Salil Mehta <salil.mehta@...wei.com>
To:     <dledford@...hat.com>
CC:     <salil.mehta@...wei.com>, <xavier.huwei@...wei.com>,
        <oulijun@...wei.com>, <yisen.zhuang@...wei.com>,
        <mehta.salil.lnk@...il.com>, <linux-rdma@...r.kernel.org>,
        <linux-kernel@...r.kernel.org>, <linuxarm@...wei.com>,
        Daode Huang <huangdaode@...ilicon.com>
Subject: [PATCH for-next 8/8] net: hns: delete redundant broadcast packet filter process

From: Daode Huang <huangdaode@...ilicon.com>

The broadcast packets is filtered in the hardware now, so this process
is no need in the driver, just delete it.

Signed-off-by: Daode Huang <huangdaode@...ilicon.com>
Reviewed-by: Yisen Zhuang <yisen.zhuang@...wei.com>
Signed-off-by: Salil Mehta <salil.mehta@...wei.com>
---
 drivers/net/ethernet/hisilicon/hns/hns_enet.c | 10 ----------
 1 file changed, 10 deletions(-)

diff --git a/drivers/net/ethernet/hisilicon/hns/hns_enet.c b/drivers/net/ethernet/hisilicon/hns/hns_enet.c
index 4105df8..d56dfca 100644
--- a/drivers/net/ethernet/hisilicon/hns/hns_enet.c
+++ b/drivers/net/ethernet/hisilicon/hns/hns_enet.c
@@ -574,7 +574,6 @@ static int hns_nic_poll_rx_skb(struct hns_nic_ring_data *ring_data,
 	struct sk_buff *skb;
 	struct hnae_desc *desc;
 	struct hnae_desc_cb *desc_cb;
-	struct ethhdr *eh;
 	unsigned char *va;
 	int bnum, length, i;
 	int pull_len;
@@ -600,7 +599,6 @@ 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);
@@ -682,14 +680,6 @@ out_bnum_err:
 		return -EFAULT;
 	}
 
-	/* filter out multicast pkt with the same src mac as this port */
-	eh = eth_hdr(skb);
-	if (unlikely(is_multicast_ether_addr(eh->h_dest) &&
-		     ether_addr_equal(ndev->dev_addr, eh->h_source))) {
-		dev_kfree_skb_any(skb);
-		return -EFAULT;
-	}
-
 	ring->stats.rx_pkts++;
 	ring->stats.rx_bytes += skb->len;
 
-- 
1.9.1