Bluetooth: Add specific connection parameter clear functions

In some circumstances we'll need to either clear only the enabled
parameters or only the disabled ones. This patch adds convenience
functions for this purpose.

Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>

include/net/bluetooth/hci_core.h

@@ -862,6 +862,8 @@ int hci_conn_params_set(struct hci_dev *hdev, bdaddr_t *addr, u8 addr_type,
 			u8 auto_connect);
 void hci_conn_params_del(struct hci_dev *hdev, bdaddr_t *addr, u8 addr_type);
 void hci_conn_params_clear_all(struct hci_dev *hdev);
+void hci_conn_params_clear_disabled(struct hci_dev *hdev);
+void hci_conn_params_clear_enabled(struct hci_dev *hdev);
 
 struct bdaddr_list *hci_pend_le_conn_lookup(struct hci_dev *hdev,
 					    bdaddr_t *addr, u8 addr_type);

net/bluetooth/hci_core.c

@@ -3579,6 +3579,38 @@ void hci_conn_params_del(struct hci_dev *hdev, bdaddr_t *addr, u8 addr_type)
 	BT_DBG("addr %pMR (type %u)", addr, addr_type);
 }
 
+/* This function requires the caller holds hdev->lock */
+void hci_conn_params_clear_disabled(struct hci_dev *hdev)
+{
+	struct hci_conn_params *params, *tmp;
+
+	list_for_each_entry_safe(params, tmp, &hdev->le_conn_params, list) {
+		if (params->auto_connect != HCI_AUTO_CONN_DISABLED)
+			continue;
+		list_del(&params->list);
+		kfree(params);
+	}
+
+	BT_DBG("All LE disabled connection parameters were removed");
+}
+
+/* This function requires the caller holds hdev->lock */
+void hci_conn_params_clear_enabled(struct hci_dev *hdev)
+{
+	struct hci_conn_params *params, *tmp;
+
+	list_for_each_entry_safe(params, tmp, &hdev->le_conn_params, list) {
+		if (params->auto_connect == HCI_AUTO_CONN_DISABLED)
+			continue;
+		list_del(&params->list);
+		kfree(params);
+	}
+
+	hci_pend_le_conns_clear(hdev);
+
+	BT_DBG("All enabled LE connection parameters were removed");
+}
+
 /* This function requires the caller holds hdev->lock */
 void hci_conn_params_clear_all(struct hci_dev *hdev)
 {