--- linux-2.4.7/net/decnet/af_decnet.c	Tue May  1 16:05:00 2001
+++ linux/net/decnet/af_decnet.c	Tue Jun 26 11:48:48 2001
@@ -140,7 +140,7 @@
 unsigned char decnet_ether_address[ETH_ALEN] = { 0xAA, 0x00, 0x04, 0x00, 0x00, 0x00 };
 
 static struct proto_ops dn_proto_ops;
-rwlock_t dn_hash_lock = RW_LOCK_UNLOCKED;
+static rwlock_t dn_hash_lock = RW_LOCK_UNLOCKED;
 static struct sock *dn_sklist;
 static struct sock *dn_wild_sk;