From: Johan Hedberg Date: Thu, 3 Dec 2015 10:45:19 +0000 (+0200) Subject: Bluetooth: Use continuous scanning when creating LE connections X-Git-Url: http://drtracing.org/?a=commitdiff_plain;h=2f99536a5b34d5b0f54723067d68f6cef3f0fdc6;p=deliverable%2Flinux.git Bluetooth: Use continuous scanning when creating LE connections All LE connections are now triggered through a preceding passive scan and waiting for a connectable advertising report. This means we've got the best possible guarantee that the device is within range and should be able to request the controller to perform continuous scanning. This way we minimize the risk that we miss out on any advertising packets. Signed-off-by: Johan Hedberg Signed-off-by: Marcel Holtmann Cc: stable@vger.kernel.org # 4.3+ --- diff --git a/net/bluetooth/hci_conn.c b/net/bluetooth/hci_conn.c index e2600213cd50..48a7eac6ef71 100644 --- a/net/bluetooth/hci_conn.c +++ b/net/bluetooth/hci_conn.c @@ -726,8 +726,12 @@ static void hci_req_add_le_create_conn(struct hci_request *req, if (hci_update_random_address(req, false, &own_addr_type)) return; + /* Set window to be the same value as the interval to enable + * continuous scanning. + */ cp.scan_interval = cpu_to_le16(hdev->le_scan_interval); - cp.scan_window = cpu_to_le16(hdev->le_scan_window); + cp.scan_window = cp.scan_interval; + bacpy(&cp.peer_addr, &conn->dst); cp.peer_addr_type = conn->dst_type; cp.own_address_type = own_addr_type;