lwtunnel: Make lwtun_encaps[] static

Any external user should use the registration API instead of
accessing this directly.

Cc: Roopa Prabhu <roopa@cumulusnetworks.com>
Signed-off-by: NThomas Graf <tgraf@suug.ch>
Acked-by: NRoopa Prabhu <roopa@cumulusnetworks.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

include/net/lwtunnel.h

@@ -31,9 +31,6 @@ struct lwtunnel_encap_ops {
 	int (*cmp_encap)(struct lwtunnel_state *a, struct lwtunnel_state *b);
 };
 
-extern const struct lwtunnel_encap_ops __rcu *
-		lwtun_encaps[LWTUNNEL_ENCAP_MAX+1];
-
 #ifdef CONFIG_LWTUNNEL
 static inline struct lwtunnel_state *
 lwtstate_get(struct lwtunnel_state *lws)

net/core/lwtunnel.c

@@ -37,7 +37,7 @@ struct lwtunnel_state *lwtunnel_state_alloc(int encap_len)
 }
 EXPORT_SYMBOL(lwtunnel_state_alloc);
 
-const struct lwtunnel_encap_ops __rcu *
+static const struct lwtunnel_encap_ops __rcu *
 		lwtun_encaps[LWTUNNEL_ENCAP_MAX + 1] __read_mostly;
 
 int lwtunnel_encap_add_ops(const struct lwtunnel_encap_ops *ops,