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/ircomm/ircomm_tty_attach.c b/net/irda/ircomm/ircomm_tty_attach.c
index 9032a1d..eafc010 100644
--- a/net/irda/ircomm/ircomm_tty_attach.c
+++ b/net/irda/ircomm/ircomm_tty_attach.c
@@ -80,7 +80,7 @@
 				  struct sk_buff *skb,
 				  struct ircomm_tty_info *info);
 
-char *ircomm_tty_state[] = {
+const char *const ircomm_tty_state[] = {
 	"IRCOMM_TTY_IDLE",
 	"IRCOMM_TTY_SEARCH",
 	"IRCOMM_TTY_QUERY_PARAMETERS",
@@ -91,7 +91,7 @@
 };
 
 #ifdef CONFIG_IRDA_DEBUG
-static char *ircomm_tty_event[] = {
+static const char *const ircomm_tty_event[] = {
 	"IRCOMM_TTY_ATTACH_CABLE",
 	"IRCOMM_TTY_DETACH_CABLE",
 	"IRCOMM_TTY_DATA_REQUEST",