net: hns: add netif_carrier_off before change speed and duplex
authorPeng Li <lipeng321@huawei.com>
Mon, 27 Aug 2018 01:59:30 +0000 (09:59 +0800)
committerDavid S. Miller <davem@davemloft.net>
Thu, 30 Aug 2018 01:08:20 +0000 (18:08 -0700)
commit455c4401fe7a538facaffb35b906ce19f1ece474
tree1d0e8330fda26f8dfe73346cec46f01f159bdbe9
parent31fabbee8f5c658c3fa1603c66e9e4f51ea8c2c6
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>
drivers/net/ethernet/hisilicon/hns/hns_ethtool.c