-#define NLMSG_NEW_ANSWER(skb, cb, type, len, flags) \
- NLMSG_NEW(skb, NETLINK_CB((cb)->skb).pid, \
- (cb)->nlh->nlmsg_seq, type, len, flags)
-
-#define NLMSG_END(skb, nlh) \
-({ (nlh)->nlmsg_len = (skb)->tail - (unsigned char *) (nlh); \
- (skb)->len; })
-
-#define NLMSG_CANCEL(skb, nlh) \
-({ skb_trim(skb, (unsigned char *) (nlh) - (skb)->data); \
- -1; })
-