--- zzzz-none-000/linux-3.10.107/include/net/ipv6.h	2017-06-27 09:49:32.000000000 +0000
+++ vr9-7490-729/linux-3.10.107/include/net/ipv6.h	2021-11-10 11:53:56.000000000 +0000
@@ -712,6 +712,25 @@
 
 extern void			ip6_flush_pending_frames(struct sock *sk);
 
+extern int ip6_send_skb(struct sk_buff *skb);
+
+extern struct sk_buff *__ip6_make_skb(struct sock *sk, struct sk_buff_head *queue,
+			struct inet_cork_full *cork,
+			struct inet6_cork *v6_cork);
+extern struct sk_buff *ip6_make_skb(struct sock *sk,
+			int getfrag(void *from, char *to, int offset,
+				int len, int odd, struct sk_buff *skb),
+			void *from, int length, int transhdrlen,
+			int hlimit, int tclass, struct ipv6_txoptions *opt,
+			struct flowi6 *fl6, struct rt6_info *rt,
+			unsigned int flags, int dontfrag);
+
+static inline struct sk_buff *ip6_finish_skb(struct sock *sk)
+{
+	return __ip6_make_skb(sk, &sk->sk_write_queue, &inet_sk(sk)->cork,
+			&inet6_sk(sk)->cork);
+}
+
 extern int			ip6_dst_lookup(struct sock *sk,
 					       struct dst_entry **dst,
 					       struct flowi6 *fl6);