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net: hns: Restart autoneg need return failed when autoneg off 

The hns driver of earlier devices, when autoneg off, restart autoneg
will return -EINVAL, so make the hns driver for the latest devices
do the same.

Signed-off-by: Yonglong Liu <liuyonglong@huawei.com>
Signed-off-by: Peng Li <lipeng321@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Yonglong Liu 2019-01-26 17:18:26 +08:00 committed by David S. Miller
parent 263c6d75f9
commit ed29ca8b95
1 changed files with 9 additions and 7 deletions
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16
drivers/net/ethernet/hisilicon/hns/hns_ethtool.c
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@ -1157,16 +1157,18 @@ static int hns_get_regs_len(struct net_device *net_dev)
*/
static int hns_nic_nway_reset(struct net_device *netdev)
{
int ret = 0;
struct phy_device *phy = netdev->phydev;
if (netif_running(netdev)) {
/* if autoneg is disabled, don't restart auto-negotiation */
if (phy && phy->autoneg == AUTONEG_ENABLE)
ret = genphy_restart_aneg(phy);
}
if (!netif_running(netdev))
return 0;
return ret;
if (!phy)
return -EOPNOTSUPP;
if (phy->autoneg != AUTONEG_ENABLE)
return -EINVAL;
return genphy_restart_aneg(phy);
}
static u32