+#define RTA_NEST_COMPAT(skb, type, attrlen, data) \
+({ struct rtattr *__start = (struct rtattr *)skb_tail_pointer(skb); \
+ RTA_PUT(skb, type, attrlen, data); \
+ RTA_NEST(skb, type); \
+ __start; })
+
+#define RTA_NEST_COMPAT_END(skb, start) \
+({ struct rtattr *__nest = (void *)(start) + NLMSG_ALIGN((start)->rta_len); \
+ (start)->rta_len = skb_tail_pointer(skb) - (unsigned char *)(start); \
+ RTA_NEST_END(skb, __nest); \
+ (skb)->len; })
+