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net: hns: add netif_carrier_off before change speed and duplex
If there are packets in hardware when changing the speed or duplex, it may cause hardware hang up. This patch adds netif_carrier_off before change speed and duplex in ethtool_ops.set_link_ksettings, and adds netif_carrier_on after complete the change. Signed-off-by: Peng Li <lipeng321@huawei.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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@ -243,7 +243,9 @@ static int hns_nic_set_link_ksettings(struct net_device *net_dev,
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}
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if (h->dev->ops->adjust_link) {
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netif_carrier_off(net_dev);
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h->dev->ops->adjust_link(h, (int)speed, cmd->base.duplex);
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netif_carrier_on(net_dev);
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return 0;
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}
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