last_trb_on_seg 98 drivers/usb/host/xhci-ring.c return last_trb_on_seg(seg, trb) && (seg->next == ring->first_seg); last_trb_on_seg 160 drivers/usb/host/xhci-ring.c if (!last_trb_on_seg(ring->deq_seg, ring->dequeue)) {