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Make usbnet_get_link() fall back to ethtool_op_get_link() instead of defaulting to 1. This makes usbnet_get_link return valid results without the need for a driver specific check_connect or mii ops as long as the driver calls netif_carrier_{on,off}() as appropriate. cdc_ether is an example of such a driver. Signed-off-by: Bjørn Mork <bjorn@mork.no> Signed-off-by: David S. Miller <davem@davemloft.net>