diff options
Diffstat (limited to 'net/ethernet/eth.c')
| -rw-r--r-- | net/ethernet/eth.c | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/net/ethernet/eth.c b/net/ethernet/eth.c index 0f9863dc4d44..fddcee38c1da 100644 --- a/net/ethernet/eth.c +++ b/net/ethernet/eth.c @@ -185,8 +185,12 @@ __be16 eth_type_trans(struct sk_buff *skb, struct net_device *dev) * at all, so we check here whether one of those tagging * variants has been configured on the receiving interface, * and if so, set skb->protocol without looking at the packet. + * The DSA tagging protocol may be able to decode some but not all + * traffic (for example only for management). In that case give it the + * option to filter the packets from which it can decode source port + * information. */ - if (unlikely(netdev_uses_dsa(dev))) + if (unlikely(netdev_uses_dsa(dev)) && dsa_can_decode(skb, dev)) return htons(ETH_P_XDSA); if (likely(eth_proto_is_802_3(eth->h_proto))) |