[PATCH 4.14 083/178] net: hns3: fix for getting advertised_caps in hns3_get_link_ksettings

[Greg Kroah-Hartman]

4.14-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Fuyun Liang <liangfuyun1@xxxxxxxxxx>


[ Upstream commit 2b39cabb2a283cea0c3d96d9370575371726164f ]

This patch fixes a bug for ethtool's get_link_ksettings().
The advertising for autoneg is always added to advertised_caps
whether autoneg is enable or disable. This patch fixes it.

Fixes: 496d03e (net: hns3: Add Ethtool support to HNS3 driver)
Signed-off-by: Fuyun Liang <liangfuyun1@xxxxxxxxxx>
Signed-off-by: Lipeng <lipeng321@xxxxxxxxxx>
Signed-off-by: David S. Miller <davem@xxxxxxxxxxxxx>
Signed-off-by: Sasha Levin <alexander.levin@xxxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
 drivers/net/ethernet/hisilicon/hns3/hns3pf/hns3_ethtool.c |    3 +++
 1 file changed, 3 insertions(+)

--- a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hns3_ethtool.c
+++ b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hns3_ethtool.c
@@ -375,6 +375,9 @@ static int hns3_get_link_ksettings(struc
 			break;
 		}
 
+		if (!cmd->base.autoneg)
+			advertised_caps &= ~HNS3_LM_AUTONEG_BIT;
+
 		/* now, map driver link modes to ethtool link modes */
 		hns3_driv_to_eth_caps(supported_caps, cmd, false);
 		hns3_driv_to_eth_caps(advertised_caps, cmd, true);