[DECNET]: Fix build regressions.

Spotted by Arnaldo.
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

net/decnet/dn_rules.c

@@ -241,12 +241,6 @@ static u32 dn_fib_rule_default_pref(void)
 	return 0;
 }
 
-static size_t dn_fib_rule_nlmsg_payload(struct fib_rule *rule)
-{
-	return nla_total_size(2) /* dst */
-	       + nla_total_size(2); /* src */
-}
-
 int dn_fib_dump_rules(struct sk_buff *skb, struct netlink_callback *cb)
 {
 	return fib_rules_dump(skb, cb, AF_DECnet);

net/decnet/dn_table.c

@@ -265,7 +265,7 @@ static int dn_fib_nh_match(struct rtmsg *r, struct nlmsghdr *nlh, struct dn_kern
 
 static inline size_t dn_fib_nlmsg_size(struct dn_fib_info *fi)
 {
-	size_t payload = NLMSG_ALIGN(struct rtmsg)
+	size_t payload = NLMSG_ALIGN(sizeof(struct rtmsg))
 			 + nla_total_size(4) /* RTA_TABLE */
 			 + nla_total_size(2) /* RTA_DST */
 			 + nla_total_size(4); /* RTA_PRIORITY */
@@ -361,7 +361,7 @@ static void dn_rtmsg_fib(int event, struct dn_fib_node *f, int z, u32 tb_id,
         u32 pid = req ? req->pid : 0;
 	int err = -ENOBUFS;
 
-        skb = nlmsg_new(dn_fib_nlmsg_size(DN_FIB_INFO(f), GFP_KERNEL));
+        skb = nlmsg_new(dn_fib_nlmsg_size(DN_FIB_INFO(f)), GFP_KERNEL);
         if (skb == NULL)
 		goto errout;