selinux: replace obsolete NLMSG_* with type safe nlmsg_*

Signed-off-by: Hong Zhiguo <honkiko@gmail.com>
Acked-by: Thomas Graf <tgraf@suug.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>

security/selinux/hooks.c

@@ -60,7 +60,7 @@
 #include <linux/bitops.h>
 #include <linux/interrupt.h>
 #include <linux/netdevice.h>	/* for network interface checks */
-#include <linux/netlink.h>
+#include <net/netlink.h>
 #include <linux/tcp.h>
 #include <linux/udp.h>
 #include <linux/dccp.h>
@@ -4475,7 +4475,7 @@ static int selinux_nlmsg_perm(struct sock *sk, struct sk_buff *skb)
 	struct nlmsghdr *nlh;
 	struct sk_security_struct *sksec = sk->sk_security;
 
-	if (skb->len < NLMSG_SPACE(0)) {
+	if (skb->len < NLMSG_HDRLEN) {
 		err = -EINVAL;
 		goto out;
 	}

security/selinux/netlink.c

@@ -16,7 +16,6 @@
 #include <linux/kernel.h>
 #include <linux/export.h>
 #include <linux/skbuff.h>
-#include <linux/netlink.h>
 #include <linux/selinux_netlink.h>
 #include <net/net_namespace.h>
 #include <net/netlink.h>
@@ -77,7 +76,7 @@ static void selnl_notify(int msgtype, void *data)
 
 	len = selnl_msglen(msgtype);
 
-	skb = alloc_skb(NLMSG_SPACE(len), GFP_USER);
+	skb = nlmsg_new(len, GFP_USER);
 	if (!skb)
 		goto oom;