headers, net: Use __kernel_sa_family_t in more definitions shared with userland

Complete the work started with commit
6602a4baf4 ('net: Make userland include
of netlink.h more sane').

Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
Signed-off-by: David S. Miller <davem@davemloft.net>

include/linux/l2tp.h

@@ -8,8 +8,8 @@
 #define _LINUX_L2TP_H_
 
 #include <linux/types.h>
-#ifdef __KERNEL__
 #include <linux/socket.h>
+#ifdef __KERNEL__
 #include <linux/in.h>
 #else
 #include <netinet/in.h>
@@ -26,14 +26,15 @@
 #define __SOCK_SIZE__	16		/* sizeof(struct sockaddr)	*/
 struct sockaddr_l2tpip {
 	/* The first fields must match struct sockaddr_in */
-	sa_family_t	l2tp_family;	/* AF_INET */
+	__kernel_sa_family_t l2tp_family; /* AF_INET */
 	__be16		l2tp_unused;	/* INET port number (unused) */
 	struct in_addr	l2tp_addr;	/* Internet address */
 
 	__u32		l2tp_conn_id;	/* Connection ID of tunnel */
 
 	/* Pad to size of `struct sockaddr'. */
-	unsigned char	__pad[sizeof(struct sockaddr) - sizeof(sa_family_t) -
+	unsigned char	__pad[sizeof(struct sockaddr) -
+			      sizeof(__kernel_sa_family_t) -
 			      sizeof(__be16) - sizeof(struct in_addr) -
 			      sizeof(__u32)];
 };