From: Jonas Dreßler verdre@v0yd.nl
[ Upstream commit fee054b7579fe252f8b9e6c17b9c5bfdaa84dd7e ]
Queuing of power_off work was introduced in these functions with commits 8b064a3ad377 ("Bluetooth: Clean up HCI state when doing power off") and c9910d0fb4fc ("Bluetooth: Fix disconnecting connections in non-connected states") in an effort to clean up state and do things like disconnecting devices before actually powering off the device.
After that, commit a3172b7eb4a2 ("Bluetooth: Add timer to force power off") introduced a timeout to ensure that the device actually got powered off, even if some of the cleanup work would never complete.
This code later got refactored with commit cf75ad8b41d2 ("Bluetooth: hci_sync: Convert MGMT_SET_POWERED"), which made powering off the device synchronous and removed the need for initiating the power_off work from other places. The timeout mentioned above got removed too, because we now also made use of the command timeout during power on/off.
These days the power_off work still exists, but it only seems to only be used for HCI_AUTO_OFF functionality, which is why we never noticed those two leftover places where we queue power_off work. So let's remove that code.
Fixes: cf75ad8b41d2 ("Bluetooth: hci_sync: Convert MGMT_SET_POWERED") Signed-off-by: Jonas Dreßler verdre@v0yd.nl Signed-off-by: Luiz Augusto von Dentz luiz.von.dentz@intel.com Signed-off-by: Sasha Levin sashal@kernel.org --- net/bluetooth/mgmt.c | 16 ---------------- 1 file changed, 16 deletions(-)
diff --git a/net/bluetooth/mgmt.c b/net/bluetooth/mgmt.c index 2448a154a4069..324f06e2e9ddb 100644 --- a/net/bluetooth/mgmt.c +++ b/net/bluetooth/mgmt.c @@ -9766,14 +9766,6 @@ void mgmt_device_disconnected(struct hci_dev *hdev, bdaddr_t *bdaddr, struct mgmt_ev_device_disconnected ev; struct sock *sk = NULL;
- /* The connection is still in hci_conn_hash so test for 1 - * instead of 0 to know if this is the last one. - */ - if (mgmt_powering_down(hdev) && hci_conn_count(hdev) == 1) { - cancel_delayed_work(&hdev->power_off); - queue_work(hdev->req_workqueue, &hdev->power_off.work); - } - if (!mgmt_connected) return;
@@ -9830,14 +9822,6 @@ void mgmt_connect_failed(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 link_type, { struct mgmt_ev_connect_failed ev;
- /* The connection is still in hci_conn_hash so test for 1 - * instead of 0 to know if this is the last one. - */ - if (mgmt_powering_down(hdev) && hci_conn_count(hdev) == 1) { - cancel_delayed_work(&hdev->power_off); - queue_work(hdev->req_workqueue, &hdev->power_off.work); - } - bacpy(&ev.addr.bdaddr, bdaddr); ev.addr.type = link_to_bdaddr(link_type, addr_type); ev.status = mgmt_status(status);