+static inline void ipv6_copy_dscp(struct ipv6hdr *outer, struct ipv6hdr *inner)
+{
+ u32 dscp = ipv6_get_dsfield(outer) & ~INET_ECN_MASK;
+ ipv6_change_dsfield(inner, INET_ECN_MASK, dscp);
+}
+
+static inline int INET_ECN_set_ce(struct sk_buff *skb)
+{
+ switch (skb->protocol) {
+ case __constant_htons(ETH_P_IP):
+ if (skb->nh.raw + sizeof(struct iphdr) <= skb->tail)
+ return IP_ECN_set_ce(skb->nh.iph);
+ break;
+
+ case __constant_htons(ETH_P_IPV6):
+ if (skb->nh.raw + sizeof(struct ipv6hdr) <= skb->tail)
+ return IP6_ECN_set_ce(skb->nh.ipv6h);
+ break;
+ }
+
+ return 0;
+}