net-next: replace obsolete NLMSG_* with type safe nlmsg_*

Signed-off-by: Hong Zhiguo <honkiko@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/net/ipv4/ipmr.c b/net/ipv4/ipmr.c
index fd61fe1..9d9610a 100644
--- a/net/ipv4/ipmr.c
+++ b/net/ipv4/ipmr.c
@@ -626,9 +626,9 @@
 		if (ip_hdr(skb)->version == 0) {
 			struct nlmsghdr *nlh = (struct nlmsghdr *)skb_pull(skb, sizeof(struct iphdr));
 			nlh->nlmsg_type = NLMSG_ERROR;
-			nlh->nlmsg_len = NLMSG_LENGTH(sizeof(struct nlmsgerr));
+			nlh->nlmsg_len = nlmsg_msg_size(sizeof(struct nlmsgerr));
 			skb_trim(skb, nlh->nlmsg_len);
-			e = NLMSG_DATA(nlh);
+			e = nlmsg_data(nlh);
 			e->error = -ETIMEDOUT;
 			memset(&e->msg, 0, sizeof(e->msg));
 
@@ -910,14 +910,14 @@
 		if (ip_hdr(skb)->version == 0) {
 			struct nlmsghdr *nlh = (struct nlmsghdr *)skb_pull(skb, sizeof(struct iphdr));
 
-			if (__ipmr_fill_mroute(mrt, skb, c, NLMSG_DATA(nlh)) > 0) {
+			if (__ipmr_fill_mroute(mrt, skb, c, nlmsg_data(nlh)) > 0) {
 				nlh->nlmsg_len = skb_tail_pointer(skb) -
 						 (u8 *)nlh;
 			} else {
 				nlh->nlmsg_type = NLMSG_ERROR;
-				nlh->nlmsg_len = NLMSG_LENGTH(sizeof(struct nlmsgerr));
+				nlh->nlmsg_len = nlmsg_msg_size(sizeof(struct nlmsgerr));
 				skb_trim(skb, nlh->nlmsg_len);
-				e = NLMSG_DATA(nlh);
+				e = nlmsg_data(nlh);
 				e->error = -EMSGSIZE;
 				memset(&e->msg, 0, sizeof(e->msg));
 			}