net: mark read-only arrays as const

String literals are constant, and usually, we can also tag the array
of pointers const too, moving it to the .rodata section.

Signed-off-by: Jan Engelhardt <jengelh@medozas.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/include/net/irda/irlap_event.h b/include/net/irda/irlap_event.h
index 2ae2e119..4c90824 100644
--- a/include/net/irda/irlap_event.h
+++ b/include/net/irda/irlap_event.h
@@ -120,7 +120,7 @@
 	LAP_PRIMARY_CONFLICT,
 } LAP_REASON;
 
-extern const char *irlap_state[];
+extern const char *const irlap_state[];
 
 void irlap_do_event(struct irlap_cb *self, IRLAP_EVENT event, 
 		    struct sk_buff *skb, struct irlap_info *info);