VXLAN: Use IP Tunnels tunnel ENC encap API

Use common ecn_encap functions from ip_tunnel module.

Signed-off-by: Pravin B Shelar <pshelar@nicira.com>
Acked-by: Stephen Hemminger <stephen@networkplumber.org>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 2 insertions, 24 deletions

diff --git a/drivers/net/vxlan.c b/drivers/net/vxlan.c
index e532b2ab5b0f..7624ab1f7b03 100644
--- a/drivers/net/vxlan.c
+++ b/drivers/net/vxlan.c
@@ -864,28 +864,6 @@ static bool route_shortcircuit(struct net_device *dev, struct sk_buff *skb)
         return false;
 }
 
-/* Extract dsfield from inner protocol */
-static inline u8 vxlan_get_dsfield(const struct iphdr *iph,
-                                   const struct sk_buff *skb)
-{
-        if (skb->protocol == htons(ETH_P_IP))
-                return iph->tos;
-        else if (skb->protocol == htons(ETH_P_IPV6))
-                return ipv6_get_dsfield((const struct ipv6hdr *)iph);
-        else
-                return 0;
-}
-
-/* Propogate ECN bits out */
-static inline u8 vxlan_ecn_encap(u8 tos,
-                                 const struct iphdr *iph,
-                                 const struct sk_buff *skb)
-{
-        u8 inner = vxlan_get_dsfield(iph, skb);
-
-        return INET_ECN_encapsulate(tos, inner);
-}
-
 static void vxlan_sock_free(struct sk_buff *skb)
 {
         sock_put(skb->sk);
@@ -996,7 +974,7 @@ static netdev_tx_t vxlan_xmit_one(struct sk_buff *skb, struct net_device *dev,
 
         tos = vxlan->tos;
         if (tos == 1)
-                tos = vxlan_get_dsfield(old_iph, skb);
+                tos = ip_tunnel_get_dsfield(old_iph, skb);
 
         src_port = vxlan_src_port(vxlan, skb);
 
@@ -1047,7 +1025,7 @@ static netdev_tx_t vxlan_xmit_one(struct sk_buff *skb, struct net_device *dev,
         iph->ihl        = sizeof(struct iphdr) >> 2;
         iph->frag_off   = df;
         iph->protocol   = IPPROTO_UDP;
-        iph->tos        = vxlan_ecn_encap(tos, old_iph, skb);
+        iph->tos        = ip_tunnel_ecn_encap(tos, old_iph, skb);
         iph->daddr      = dst;
         iph->saddr      = fl4.saddr;
         iph->ttl        = ttl ? : ip4_dst_hoplimit(&rt->dst);