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/net/irda/irlap.c b/net/irda/irlap.c
index e4965b7..356e65b 100644
--- a/net/irda/irlap.c
+++ b/net/irda/irlap.c
@@ -63,7 +63,7 @@
 					struct qos_info *qos_user);
 
 #ifdef CONFIG_IRDA_DEBUG
-static char *lap_reasons[] = {
+static const char *const lap_reasons[] = {
 	"ERROR, NOT USED",
 	"LAP_DISC_INDICATION",
 	"LAP_NO_RESPONSE",