Minki/linux
1
0
Fork 1
mirror of https://github.com/torvalds/linux.git synced 2024-11-06 12:11:59 +00:00
Code Issues Packages Projects Releases Wiki Activity

Bluetooth: Ensure that background scanning gets enabled on power on

Browse Source 
The background scanning normally gets enabled during power on by
adding devices to the pending connection list. However devices
might be already on that list and the list of devices is empty,
then it is better to trigger the background manually.

Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
This commit is contained in:
Marcel Holtmann 2014-07-01 19:28:24 +02:00
parent b8221770c9
commit c83ed19d23
1 changed files with 17 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

18
net/bluetooth/mgmt.c
View File

@ -5283,11 +5283,27 @@ void mgmt_index_removed(struct hci_dev *hdev)
static void restart_le_auto_conns(struct hci_dev *hdev)
{
struct hci_conn_params *p;
bool added = false;
list_for_each_entry(p, &hdev->le_conn_params, list) {
if (p->auto_connect == HCI_AUTO_CONN_ALWAYS)
if (p->auto_connect == HCI_AUTO_CONN_ALWAYS) {
hci_pend_le_conn_add(hdev, &p->addr, p->addr_type);
added = true;
}
}
/* Calling hci_pend_le_conn_add will actually already trigger
* background scanning when needed. So no need to trigger it
* just another time.
*
* This check is here to avoid an unneeded restart of the
* passive scanning. Since this is during the controller
* power up phase the duplicate filtering is not an issue.
*/
if (added)
return;
hci_update_background_scan(hdev);
}
static void powered_complete(struct hci_dev *hdev, u8 status)