compare_ohci_cycle_count
if (compare_ohci_cycle_count(latest_cycle, curr_cycle) > 0)
if (compare_ohci_cycle_count(latest_cycle, curr_cycle) < 0)
if (compare_ohci_cycle_count(cycle, d->processing_cycle.rx_start) >= 0)
if (compare_ohci_cycle_count(cycle, d->processing_cycle.tx_start) >= 0)
compare_ohci_cycle_count(next_cycle, cycle) > 0)
if (compare_ohci_cycle_count(s->next_cycle, cycle) > 0)
lost = (compare_ohci_cycle_count(safe_cycle, cycle) < 0);