static int bearer_ctl_send(struct net_buf *buf)
{
	if (!buf) {
		return -ENOMEM;
	}

	prov_clear_tx();
	k_work_reschedule(&link.prot_timer, PROTOCOL_TIMEOUT);

	link.tx.start = k_uptime_get();
	link.tx.buf[0] = buf;
	send_reliable();

	return 0;
}
static int bearer_ctl_send(struct net_buf *buf)
{
	if (!buf) {
		return -ENOMEM;
	}

	prov_clear_tx();
	k_work_reschedule(&link.prot_timer, PROTOCOL_TIMEOUT);

	link.tx.start = k_uptime_get();
	link.tx.buf[0] = buf;
	send_reliable();

	return 0;
}