Bluetooth: Pass desired connection role to hci_connect_le()

If we have both LE scanning and advertising simultaneously enabled we
need a way to tell hci_connect_le() in which role to initiate a
connection. This patch adds a new parameter to the function to give it
the necessary information. For auto-connect and mgmt_pair_device we
always use master role, whereas for L2CAP users (in practice sockets) we
use slave role whenever HCI_ADVERTISING is set and master role
otherwise.

Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
diff --git a/net/bluetooth/l2cap_core.c b/net/bluetooth/l2cap_core.c
index 3daab45..bf379a3 100644
--- a/net/bluetooth/l2cap_core.c
+++ b/net/bluetooth/l2cap_core.c
@@ -7124,6 +7124,8 @@
 	chan->dcid = cid;
 
 	if (bdaddr_type_is_le(dst_type)) {
+		bool master;
+
 		/* Convert from L2CAP channel address type to HCI address type
 		 */
 		if (dst_type == BDADDR_LE_PUBLIC)
@@ -7131,8 +7133,10 @@
 		else
 			dst_type = ADDR_LE_DEV_RANDOM;
 
+		master = !test_bit(HCI_ADVERTISING, &hdev->dev_flags);
+
 		hcon = hci_connect_le(hdev, dst, dst_type, chan->sec_level,
-				      HCI_LE_CONN_TIMEOUT);
+				      HCI_LE_CONN_TIMEOUT, master);
 	} else {
 		u8 auth_type = l2cap_get_auth_type(chan);
 		hcon = hci_connect_acl(hdev, dst, chan->sec_level, auth_type);