IPVS: Make the cp argument to ip_vs_sync_conn() static

Acked-by: Hans Schillstrom <hans.schillstrom@ericsson.com>
Signed-off-by: Simon Horman <horms@verge.net.au>
diff --git a/include/net/ip_vs.h b/include/net/ip_vs.h
index be2b569..d5a32e4 100644
--- a/include/net/ip_vs.h
+++ b/include/net/ip_vs.h
@@ -916,7 +916,7 @@
 extern char ip_vs_backup_mcast_ifn[IP_VS_IFNAME_MAXLEN];
 extern int start_sync_thread(int state, char *mcast_ifn, __u8 syncid);
 extern int stop_sync_thread(int state);
-extern void ip_vs_sync_conn(struct ip_vs_conn *cp);
+extern void ip_vs_sync_conn(const struct ip_vs_conn *cp);
 
 
 /*