/* Return nonzero if aggregator has a partner (denoted by a non-zero ether address for the partner). Return 0 if not.  */
static int __agg_has_partner(struct aggregator *agg)
/* Return nonzero if aggregator has a partner (denoted by a non-zero ether address for the partner). Return 0 if not.  */
static int __agg_has_partner(struct aggregator *agg)
{
	return !is_zero_ether_addr(agg->partner_system.mac_addr_value);
}