Bluetooth: Add flag to track managment controlled adapters

This patch adds a HCI_MGMT flag to track adapters which are under the
control of the management interface. This is needed to make sure that
new kernels will work with old user space versions. I.e. behaviour which
could break old user space versions (but is needed by the management
interface) should not be exhibited when the HCI_MGMT flag is not set.

Signed-off-by: Johan Hedberg <johan.hedberg@nokia.com>
Signed-off-by: Gustavo F. Padovan <padovan@profusion.mobi>

include/net/bluetooth/hci.h

@@ -79,6 +79,7 @@ enum {
 
 	HCI_SETUP,
 	HCI_AUTO_OFF,
+	HCI_MGMT,
 };
 
 /* HCI ioctl defines */

net/bluetooth/mgmt.c

@@ -142,6 +142,8 @@ static int read_index_list(struct sock *sk)
 
 		hci_del_off_timer(d);
 
+		set_bit(HCI_MGMT, &d->flags);
+
 		if (test_bit(HCI_SETUP, &d->flags))
 			continue;
 
@@ -200,6 +202,8 @@ static int read_controller_info(struct sock *sk, unsigned char *data, u16 len)
 
 	hci_dev_lock_bh(hdev);
 
+	set_bit(HCI_MGMT, &hdev->flags);
+
 	put_unaligned_le16(hdev->id, &rp->index);
 	rp->type = hdev->dev_type;