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/bluetooth/af_bluetooth.c b/net/bluetooth/af_bluetooth.c
index 0250e06..8cfb5a8 100644
--- a/net/bluetooth/af_bluetooth.c
+++ b/net/bluetooth/af_bluetooth.c
@@ -49,7 +49,7 @@
 static DEFINE_RWLOCK(bt_proto_lock);
 
 static struct lock_class_key bt_lock_key[BT_MAX_PROTO];
-static const char *bt_key_strings[BT_MAX_PROTO] = {
+static const char *const bt_key_strings[BT_MAX_PROTO] = {
 	"sk_lock-AF_BLUETOOTH-BTPROTO_L2CAP",
 	"sk_lock-AF_BLUETOOTH-BTPROTO_HCI",
 	"sk_lock-AF_BLUETOOTH-BTPROTO_SCO",
@@ -61,7 +61,7 @@
 };
 
 static struct lock_class_key bt_slock_key[BT_MAX_PROTO];
-static const char *bt_slock_key_strings[BT_MAX_PROTO] = {
+static const char *const bt_slock_key_strings[BT_MAX_PROTO] = {
 	"slock-AF_BLUETOOTH-BTPROTO_L2CAP",
 	"slock-AF_BLUETOOTH-BTPROTO_HCI",
 	"slock-AF_BLUETOOTH-BTPROTO_SCO",