diff options
Diffstat (limited to 'net/core/dev.c')
| -rw-r--r-- | net/core/dev.c | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/net/core/dev.c b/net/core/dev.c index 151f1651439f..79c15f4244e6 100644 --- a/net/core/dev.c +++ b/net/core/dev.c @@ -4630,6 +4630,18 @@ static u32 netif_receive_generic_xdp(struct sk_buff *skb, * header. */ mac_len = skb->data - skb_mac_header(skb); + if (!mac_len && !skb->dev->hard_header_len) { + /* For l3 packets, we push on a fake mac header, and then + * pull it off again, so that it has the same skb geometry + * as for the l2 case. + */ + eth = skb_push(skb, ETH_HLEN); + eth_zero_addr(eth->h_source); + eth_zero_addr(eth->h_dest); + eth->h_proto = skb->protocol; + __skb_pull(skb, ETH_HLEN); + mac_len = ETH_HLEN; + } hlen = skb_headlen(skb) + mac_len; xdp->data = skb->data - mac_len; xdp->data_meta = xdp->data; |