diff options
| author | Kejian Yan <yankejian@huawei.com> | 2016-03-22 09:06:22 +0100 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2016-03-22 20:45:57 +0100 |
| commit | 0d6b425a3773c3445b0f51b2f333821beaacb619 (patch) | |
| tree | 323153a3d8079ddae2936f691f1b80f78004455b /drivers/net | |
| parent | ipv6: remove unused in6_addr struct (diff) | |
| download | linux-0d6b425a3773c3445b0f51b2f333821beaacb619.tar.xz linux-0d6b425a3773c3445b0f51b2f333821beaacb619.zip | |
net: hns: bug fix about ping6
The current upstreaming code fails to ping other IPv6 net device, because
the enet receives the multicast packets with the src mac addr which is the
same as its mac addr. These packets need to be dropped.
Signed-off-by: Kejian Yan <yankejian@huawei.com>
Signed-off-by: Yisen Zhuang <Yisen.Zhuang@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net')
| -rw-r--r-- | drivers/net/ethernet/hisilicon/hns/hns_enet.c | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/drivers/net/ethernet/hisilicon/hns/hns_enet.c b/drivers/net/ethernet/hisilicon/hns/hns_enet.c index 3f77ff77abbc..ef84bd72e3ca 100644 --- a/drivers/net/ethernet/hisilicon/hns/hns_enet.c +++ b/drivers/net/ethernet/hisilicon/hns/hns_enet.c @@ -564,6 +564,7 @@ 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; @@ -670,6 +671,14 @@ 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; |