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Date:   Thu, 7 Dec 2017 15:45:39 +0000
From:   alexander.levin@...izon.com
To:     "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "stable@...r.kernel.org" <stable@...r.kernel.org>
Cc:     Fuyun Liang <liangfuyun1@...wei.com>,
        Lipeng <lipeng321@...wei.com>,
        "David S . Miller" <davem@...emloft.net>,
        alexander.levin@...izon.com
Subject: [PATCH AUTOSEL for 4.14 038/135] net: hns3: fix for getting
 advertised_caps in hns3_get_link_ksettings

From: Fuyun Liang <liangfuyun1@...wei.com>

[ 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@...wei.com>
Signed-off-by: Lipeng <lipeng321@...wei.com>
Signed-off-by: David S. Miller <davem@...emloft.net>
Signed-off-by: Sasha Levin <alexander.levin@...izon.com>
---
 drivers/net/ethernet/hisilicon/hns3/hns3pf/hns3_ethtool.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hns3_ethtool.c b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hns3_ethtool.c
index d636399232fb..e590d96e434a 100644
--- 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(struct net_device *netdev,
 			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);
-- 
2.11.0

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