ERST_NUM_SEGS 2507 drivers/usb/host/xhci-mem.c xhci->event_ring = xhci_ring_alloc(xhci, ERST_NUM_SEGS, 1, TYPE_EVENT, ERST_NUM_SEGS 2521 drivers/usb/host/xhci-mem.c val |= ERST_NUM_SEGS;