[NETLINK]: Explicit typing

This patch converts "unsigned flags" to use more explict types like u16
instead and incrementally introduces NLMSG_NEW().
 
Signed-off-by: Jamal Hadi Salim <hadi@cyberus.ca>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/net/sched/act_api.c b/net/sched/act_api.c
index 914c85f..9594206 100644
--- a/net/sched/act_api.c
+++ b/net/sched/act_api.c
@@ -428,15 +428,15 @@
 
 static int
 tca_get_fill(struct sk_buff *skb, struct tc_action *a, u32 pid, u32 seq,
-             unsigned flags, int event, int bind, int ref)
+             u16 flags, int event, int bind, int ref)
 {
 	struct tcamsg *t;
 	struct nlmsghdr *nlh;
 	unsigned char *b = skb->tail;
 	struct rtattr *x;
 
-	nlh = NLMSG_PUT(skb, pid, seq, event, sizeof(*t));
-	nlh->nlmsg_flags = flags;
+	nlh = NLMSG_NEW(skb, pid, seq, event, sizeof(*t), flags);
+
 	t = NLMSG_DATA(nlh);
 	t->tca_family = AF_UNSPEC;
 	
@@ -669,7 +669,7 @@
 }
 
 static int tcf_add_notify(struct tc_action *a, u32 pid, u32 seq, int event,
-                          unsigned flags)
+                          u16 flags)
 {
 	struct tcamsg *t;
 	struct nlmsghdr *nlh;
@@ -684,8 +684,7 @@
 
 	b = (unsigned char *)skb->tail;
 
-	nlh = NLMSG_PUT(skb, pid, seq, event, sizeof(*t));
-	nlh->nlmsg_flags = flags;
+	nlh = NLMSG_NEW(skb, pid, seq, event, sizeof(*t), flags);
 	t = NLMSG_DATA(nlh);
 	t->tca_family = AF_UNSPEC;