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;