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Bluetooth: Run all background scan updates through req_workqueue

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Instead of firing off a simple async request queue all background scan
updates through req_workqueue and use hci_req_sync() there to ensure
that no two updates overlap with each other.

Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
This commit is contained in:
Johan Hedberg 2015-11-11 08:11:17 +02:00 • committed by Marcel Holtmann
parent 5fc16cc4f3
commit 2e93e53b8f
4 changed files with 25 additions and 24 deletions
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39
net/bluetooth/hci_request.c
View file

@ -731,28 +731,6 @@ void __hci_update_background_scan(struct hci_request *req)
}
}
static void update_background_scan_complete(struct hci_dev *hdev, u8 status,
u16 opcode)
{
if (status)
BT_DBG("HCI request failed to update background scanning: "
"status 0x%2.2x", status);
}
void hci_update_background_scan(struct hci_dev *hdev)
{
int err;
struct hci_request req;
hci_req_init(&req, hdev);
__hci_update_background_scan(&req);
err = hci_req_run(&req, update_background_scan_complete);
if (err && err != -ENODATA)
BT_ERR("Failed to run HCI request: err %d", err);
}
void __hci_abort_conn(struct hci_request *req, struct hci_conn *conn,
u8 reason)
{
@ -846,10 +824,27 @@ int hci_abort_conn(struct hci_conn *conn, u8 reason)
return 0;
}
static void update_bg_scan(struct hci_request *req, unsigned long opt)
{
hci_dev_lock(req->hdev);
__hci_update_background_scan(req);
hci_dev_unlock(req->hdev);
}
static void bg_scan_update(struct work_struct *work)
{
struct hci_dev *hdev = container_of(work, struct hci_dev,
bg_scan_update);
hci_req_sync(hdev, update_bg_scan, 0, HCI_CMD_TIMEOUT);
}
void hci_request_setup(struct hci_dev *hdev)
{
INIT_WORK(&hdev->bg_scan_update, bg_scan_update);
}
void hci_request_cancel_all(struct hci_dev *hdev)
{
cancel_work_sync(&hdev->bg_scan_update);
}