usbnet_get_ethernet_addr
status = usbnet_get_ethernet_addr(dev, info->ether->iMACAddress);
temp = usbnet_get_ethernet_addr(dev, ctx->ether_desc->iMACAddress);
int status = usbnet_get_ethernet_addr(dev, 3);
usbnet_get_ethernet_addr(dev, cdc_ether->iMACAddress);
EXPORT_SYMBOL_GPL(usbnet_get_ethernet_addr);
extern int usbnet_get_ethernet_addr(struct usbnet *, int);