[NETROM]: Introduct stuct nr_private

NET/ROM's virtual interfaces don't have a proper private data
structure yet.  Create struct nr_private and put the statistics there.

Signed-off-by: Ralf Baechle DL5RB <ralf@linux-mips.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/include/net/netrom.h b/include/net/netrom.h
index ad05d7a..a6bf6e0 100644
--- a/include/net/netrom.h
+++ b/include/net/netrom.h
@@ -6,6 +6,7 @@
 
 #ifndef _NETROM_H
 #define _NETROM_H 
+
 #include <linux/netrom.h>
 #include <linux/list.h>
 #include <net/sock.h>
@@ -58,6 +59,10 @@
 #define NR_MAX_WINDOW_SIZE		127			/* Maximum Window Allowable - 127 */
 #define	NR_MAX_PACKET_SIZE		236			/* Maximum Packet Length - 236 */
 
+struct nr_private {
+	struct net_device_stats	stats;
+};
+
 struct nr_sock {
 	struct sock		sock;
 	ax25_address		user_addr, source_addr, dest_addr;