xhci_alloc_virt_device
DEFINE_EVENT(xhci_log_virt_dev, xhci_alloc_virt_device,
if (!xhci_alloc_virt_device(xhci, slot_id, udev, GFP_NOIO)) {
int xhci_alloc_virt_device(struct xhci_hcd *xhci, int slot_id, struct usb_device *udev, gfp_t flags);