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>

include/net/llc_c_st.h

@@ -36,7 +36,7 @@ struct llc_conn_state_trans {
 	llc_conn_ev_t	   ev;
 	u8		   next_state;
 	llc_conn_ev_qfyr_t *ev_qualifiers;
-	llc_conn_action_t  *ev_actions;
+	const llc_conn_action_t  *ev_actions;
 };
 
 struct llc_conn_state {

net/llc/llc_conn.c

@@ -454,7 +454,7 @@ static int llc_exec_conn_trans_actions(struct sock *sk,
 				       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++) {