Bluetooth: Use const for struct l2cap_ops field

The struct l2cap_ops field should not allow any modifications and thus
it is better declared as const.

Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
diff --git a/include/net/bluetooth/l2cap.h b/include/net/bluetooth/l2cap.h
index 4abdcb2..cf67420 100644
--- a/include/net/bluetooth/l2cap.h
+++ b/include/net/bluetooth/l2cap.h
@@ -579,7 +579,7 @@
 	struct list_head	global_l;
 
 	void			*data;
-	struct l2cap_ops	*ops;
+	const struct l2cap_ops	*ops;
 	struct mutex		lock;
 };
 
diff --git a/net/bluetooth/a2mp.c b/net/bluetooth/a2mp.c
index 9514cc9..1996b4c 100644
--- a/net/bluetooth/a2mp.c
+++ b/net/bluetooth/a2mp.c
@@ -704,7 +704,7 @@
 	return skb;
 }
 
-static struct l2cap_ops a2mp_chan_ops = {
+static const struct l2cap_ops a2mp_chan_ops = {
 	.name = "L2CAP A2MP channel",
 	.recv = a2mp_chan_recv_cb,
 	.close = a2mp_chan_close_cb,
diff --git a/net/bluetooth/l2cap_sock.c b/net/bluetooth/l2cap_sock.c
index e137869..11e2207 100644
--- a/net/bluetooth/l2cap_sock.c
+++ b/net/bluetooth/l2cap_sock.c
@@ -1375,7 +1375,7 @@
 	sk->sk_state_change(sk);
 }
 
-static struct l2cap_ops l2cap_chan_ops = {
+static const struct l2cap_ops l2cap_chan_ops = {
 	.name		= "L2CAP Socket Interface",
 	.new_connection	= l2cap_sock_new_connection_cb,
 	.recv		= l2cap_sock_recv_cb,