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: Thomas Graf <tgraf@suug.ch>
Acked-by: Roopa Prabhu <roopa@cumulusnetworks.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/net/core/lwtunnel.c b/net/core/lwtunnel.c
index 5f7fae7..c240c89 100644
--- a/net/core/lwtunnel.c
+++ b/net/core/lwtunnel.c
@@ -37,7 +37,7 @@
 }
 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,