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Daode Huang authored
When set auto-negotiation off and duplex half, if run "ethtool -r ethX" on port with phy, then the port will be failed to work. It should forbid to start auto-negotiation when auto-negotiate is off. This patch add the limited condition. Reported-by: Jinchuang Tian <tianjinchuang1@huawei.com> Signed-off-by: Daode Huang <huangdaode@hisilicon.com> Reviewed-by: Yisen Zhuang <yisen.zhuang@huawei.com> Reviewed-by: lipeng <lipeng321@huawei.com> Signed-off-by: Salil Mehta <salil.mehta@huawei.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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