Bluetooth: Disconnect early if mode is not supported

When mode is mandatory we shall not send connect request and report this
to the userspace as well.

Signed-off-by: Gustavo F. Padovan <padovan@profusion.mobi>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
diff --git a/include/net/bluetooth/l2cap.h b/include/net/bluetooth/l2cap.h
index 7c695bf..f8bae54 100644
--- a/include/net/bluetooth/l2cap.h
+++ b/include/net/bluetooth/l2cap.h
@@ -287,6 +287,11 @@
 	struct l2cap_chan_list chan_list;
 };
 
+struct sock_del_list {
+	struct sock *sk;
+	struct list_head list;
+};
+
 #define L2CAP_INFO_CL_MTU_REQ_SENT	0x01
 #define L2CAP_INFO_FEAT_MASK_REQ_SENT	0x04
 #define L2CAP_INFO_FEAT_MASK_REQ_DONE	0x08