static void ehci_queues_rip_unused(EHCIState *ehci, int async, int flush) { EHCIQueueHead *head = async ? &ehci->aqueues : &ehci->pqueues; uint64_t maxage = FRAME_TIMER_NS * ehci->maxframes * 4; EHCIQueue *q, *tmp; QTAILQ_FOREACH_SAFE(q, head, next, tmp) { if (q->seen) { q->seen = 0; q->ts = ehci->last_run_ns; continue; } if (!flush && ehci->last_run_ns < q->ts + maxage) { continue; } ehci_free_queue(q); } }