[PATCH] missed const in prototype

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

arch/um/drivers/pcap_user.h

@@ -15,7 +15,7 @@ struct pcap_data {
 	void *dev;
 };
 
-extern struct net_user_info pcap_user_info;
+extern const struct net_user_info pcap_user_info;
 
 extern int pcap_user_read(int fd, void *buf, int len, struct pcap_data *pri);