hci_get_next_instance
struct adv_info *hci_get_next_instance(struct hci_dev *hdev, u8 instance);
next = hci_get_next_instance(hdev, instance);
next_instance = hci_get_next_instance(hdev, instance);
next_instance = hci_get_next_instance(hdev, instance);
adv_instance = hci_get_next_instance(hdev, adv_instance->instance);
next_instance = hci_get_next_instance(hdev, cp->instance);
next_instance = hci_get_next_instance(hdev, cp->instance);