llc: Make function pointer arrays const

It's better when function pointer arrays aren't modifiable.

Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/net/llc/llc_conn.c b/net/llc/llc_conn.c
index 42dc2e4..75baa2b 100644
--- a/net/llc/llc_conn.c
+++ b/net/llc/llc_conn.c
@@ -454,7 +454,7 @@
 				       struct sk_buff *skb)
 {
 	int rc = 0;
-	llc_conn_action_t *next_action;
+	const llc_conn_action_t *next_action;
 
 	for (next_action = trans->ev_actions;
 	     next_action && *next_action; next_action++) {