llc: make lock static

The llc_sap_list_lock does not need to be global, only acquired
in core.
Signed-off-by: NStephen Hemminger <stephen@networkplumber.org>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

include/net/llc.h

@@ -93,7 +93,6 @@ struct hlist_nulls_head *llc_sk_laddr_hash(struct llc_sap *sap,
 #define LLC_DEST_CONN            2      /* Type 2 goes here */
 
 extern struct list_head llc_sap_list;
-extern spinlock_t llc_sap_list_lock;
 
 int llc_rcv(struct sk_buff *skb, struct net_device *dev, struct packet_type *pt,
 	    struct net_device *orig_dev);

net/llc/llc_core.c

@@ -23,7 +23,7 @@
 #include <net/llc.h>
 
 LIST_HEAD(llc_sap_list);
-DEFINE_SPINLOCK(llc_sap_list_lock);
+static DEFINE_SPINLOCK(llc_sap_list_lock);
 
 /**
  *	llc_sap_alloc - allocates and initializes sap.
@@ -159,7 +159,6 @@ module_init(llc_init);
 module_exit(llc_exit);
 
 EXPORT_SYMBOL(llc_sap_list);
-EXPORT_SYMBOL(llc_sap_list_lock);
 EXPORT_SYMBOL(llc_sap_find);
 EXPORT_SYMBOL(llc_sap_open);
 EXPORT_SYMBOL(llc_sap_close);