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由 Valentine Barshak 提交于
Not all pasemi mac interfaces can have a phy attached. For example, XAUI has no phy and phydev is NULL for it. In this case ethtool get settings causes kernel crash. Fix it by returning -EOPNOTSUPP if there's no PHY attached. Signed-off-by: NValentine Barshak <vbarshak@ru.mvista.com> Acked-by: NOlof Johansson <olof@lixom.net> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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