Bluetooth: Enable passive scanning whenever we're connectable (2b7be33e) · Commits · 戴 / test

Enabling passive scanning always when we're connectable aligns us with the BR/EDR page scanning. This is also consistent with the fact that the code dealing with passive scanning results will actively try to connect any direct advertising event when we're connectable. This patch implements the feature by adding the connectable condition to hci_update_background_scan() checks for starting scanning and by calling hci_update_background_scan() whenever the connectable state changes. Signed-off-by:

Johan Hedberg <johan.hedberg@intel.com> Signed-off-by:

Marcel Holtmann <marcel@holtmann.org>

net/bluetooth/hci_core.c

+2 −1

Original line number	Diff line number	Diff line
		@@ -5409,7 +5409,8 @@ void hci_update_background_scan(struct hci_dev *hdev)

		hci_req_init(&req, hdev);

		if (list_empty(&hdev->pend_le_conns) &&
		if (!test_bit(HCI_CONNECTABLE, &hdev->dev_flags) &&
		list_empty(&hdev->pend_le_conns) &&
		list_empty(&hdev->pend_le_reports)) {
		/* If there is no pending LE connections or devices
		* to be scanned for, we should stop the background

net/bluetooth/mgmt.c

+3 −1

Original line number	Diff line number	Diff line
		@@ -1750,8 +1750,10 @@ static void set_connectable_complete(struct hci_dev *hdev, u8 status)

		send_settings_rsp(cmd->sk, MGMT_OP_SET_CONNECTABLE, hdev);

		if (changed)
		if (changed) {
		new_settings(hdev, cmd->sk);
		hci_update_background_scan(hdev);
		}

		remove_cmd:
		mgmt_pending_remove(cmd);

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