[PATCH AUTOSEL 5.6 050/149] net: hns3: modify an unsuitable print when setting unknown duplex to fibre

Sasha Levin
2020-04-11T23:47:57Z

From: Guangbin Huang <huangguangbin2@huawei.com>

[ Upstream commit 2d3db26d78805c9e06e26def0081c76e9bb0b7d6 ]

Currently, if device is in link down status and user uses
'ethtool -s' command to set speed but not specify duplex
mode, the duplex mode passed from ethtool to driver is
unknown value(255), and the fibre port will identify this
value as half duplex mode and print "only copper port
supports half duplex!". This message is confusing.

So for fibre port, only the setting duplex is half, prints
error and returns.

Signed-off-by: Guangbin Huang <huangguangbin2@huawei.com>
Signed-off-by: Huazhong Tan <tanhuazhong@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/net/ethernet/hisilicon/hns3/hns3_ethtool.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3_ethtool.c b/drivers/net/ethernet/hisilicon/hns3/hns3_ethtool.c
index c03856e633202..3f59a1924390f 100644
--- a/drivers/net/ethernet/hisilicon/hns3/hns3_ethtool.c
+++ b/drivers/net/ethernet/hisilicon/hns3/hns3_ethtool.c
@@ -736,7 +736,7 @@ static int hns3_check_ksettings_param(const struct net_device *netdev,
if (ops->get_media_type)
ops->get_media_type(handle, &media_type, &module_type);

- if (cmd->base.duplex != DUPLEX_FULL &&
+ if (cmd->base.duplex == DUPLEX_HALF &&
media_type != HNAE3_MEDIA_TYPE_COPPER) {
netdev_err(netdev,
"only copper port supports half duplex!");
--
2.20.1