net: Introduce skb_tunnel_rx() helper
skb rxhash should be cleared when a skb is handled by a tunnel before
being delivered again, so that correct packet steering can take place.
There are other cleanups and accounting that we can factorize in a new
helper, skb_tunnel_rx()
Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/net/ipv6/ip6_tunnel.c b/net/ipv6/ip6_tunnel.c
index 2599870..8f39893 100644
--- a/net/ipv6/ip6_tunnel.c
+++ b/net/ipv6/ip6_tunnel.c
@@ -723,14 +723,10 @@
skb->protocol = htons(protocol);
skb->pkt_type = PACKET_HOST;
memset(skb->cb, 0, sizeof(struct inet6_skb_parm));
- skb->dev = t->dev;
- skb_dst_drop(skb);
- nf_reset(skb);
+
+ skb_tunnel_rx(skb, t->dev);
dscp_ecn_decapsulate(t, ipv6h, skb);
-
- t->dev->stats.rx_packets++;
- t->dev->stats.rx_bytes += skb->len;
netif_rx(skb);
rcu_read_unlock();
return 0;
diff --git a/net/ipv6/ip6mr.c b/net/ipv6/ip6mr.c
index 163850e..bd9e7d3 100644
--- a/net/ipv6/ip6mr.c
+++ b/net/ipv6/ip6mr.c
@@ -658,14 +658,12 @@
skb->mac_header = skb->network_header;
skb_pull(skb, (u8 *)encap - skb->data);
skb_reset_network_header(skb);
- skb->dev = reg_dev;
skb->protocol = htons(ETH_P_IPV6);
skb->ip_summed = 0;
skb->pkt_type = PACKET_HOST;
- skb_dst_drop(skb);
- reg_dev->stats.rx_bytes += skb->len;
- reg_dev->stats.rx_packets++;
- nf_reset(skb);
+
+ skb_tunnel_rx(skb, reg_dev);
+
netif_rx(skb);
dev_put(reg_dev);
return 0;
diff --git a/net/ipv6/sit.c b/net/ipv6/sit.c
index 5abae10..e51e650 100644
--- a/net/ipv6/sit.c
+++ b/net/ipv6/sit.c
@@ -566,11 +566,9 @@
kfree_skb(skb);
return 0;
}
- tunnel->dev->stats.rx_packets++;
- tunnel->dev->stats.rx_bytes += skb->len;
- skb->dev = tunnel->dev;
- skb_dst_drop(skb);
- nf_reset(skb);
+
+ skb_tunnel_rx(skb, tunnel->dev);
+
ipip6_ecn_decapsulate(iph, skb);
netif_rx(skb);
rcu_read_unlock();