netdev - [PATCH] net: phy: Prevent reporting advertised modes when autoneg is off

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Date:   Wed, 14 Oct 2020 14:56:50 +0200
From:   Łukasz Stelmach <l.stelmach@...sung.com>
To:     Andrew Lunn <andrew@...n.ch>,
        Heiner Kallweit <hkallweit1@...il.com>,
        Russell King <linux@...linux.org.uk>,
        "David S. Miller" <davem@...emloft.net>,
        Jakub Kicinski <kuba@...nel.org>, netdev@...r.kernel.org,
        linux-kernel@...r.kernel.org
Cc:     Bartłomiej Żolnierkiewicz 
        <b.zolnierkie@...sung.com>,
        Marek Szyprowski <m.szyprowski@...sung.com>,
        Łukasz Stelmach <l.stelmach@...sung.com>
Subject: [PATCH] net: phy: Prevent reporting advertised modes when autoneg
 is off

Do not report advertised link modes when autonegotiation is turned
off. mii_ethtool_get_link_ksettings() exhibits the same behaviour.

Signed-off-by: Łukasz Stelmach <l.stelmach@...sung.com>
---
 drivers/net/phy/phy.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/net/phy/phy.c b/drivers/net/phy/phy.c
index 35525a671400..3cadf224fdb2 100644
--- a/drivers/net/phy/phy.c
+++ b/drivers/net/phy/phy.c
@@ -315,7 +315,8 @@ void phy_ethtool_ksettings_get(struct phy_device *phydev,
 			       struct ethtool_link_ksettings *cmd)
 {
 	linkmode_copy(cmd->link_modes.supported, phydev->supported);
-	linkmode_copy(cmd->link_modes.advertising, phydev->advertising);
+	if (phydev->autoneg)
+		linkmode_copy(cmd->link_modes.advertising, phydev->advertising);
 	linkmode_copy(cmd->link_modes.lp_advertising, phydev->lp_advertising);
 
 	cmd->base.speed = phydev->speed;
-- 
2.26.2