net: hns3: Mask the packet statistics query when NIC is down
Update the HNS3_NIC_STATE_DOWN bit when NIC state changes. When NIC is down, mask the packet statistics for querying with ifconfig command. It's a common practice. Signed-off-by: Jian Shen <shenjian15@huawei.com> Signed-off-by: Peng Li <lipeng321@huawei.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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