netdev - [PATCH net-next 6/6] net: phy: Fix ioctl handler when modifing MII

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Message-Id: <1544042985-25347-7-git-send-email-andrew@lunn.ch>
Date:   Wed,  5 Dec 2018 21:49:45 +0100
From:   Andrew Lunn <andrew@...n.ch>
To:     David Miller <davem@...emloft.net>
Cc:     netdev <netdev@...r.kernel.org>,
        Florian Fainelli <f.fainelli@...il.com>,
        Heiner Kallweit <hkallweit1@...il.com>,
        Andrew Lunn <andrew@...n.ch>
Subject: [PATCH net-next 6/6] net: phy: Fix ioctl handler when modifing MII_ADVERTISE

When the MII_ADVERTISE register is modified by the IOCTL handler,
phydev->advertising needs recalculating. Use the _mod_ variant of
mii_adv_to_linkmode_adv_t so that bits outside of the advertise
registers are not cleared.

Fixes: c0ec3c273677 ("net: phy: Convert u32 phydev->lp_advertising to linkmode")
Reported-by: Heiner Kallweit <hkallweit1@...il.com>
Signed-off-by: Andrew Lunn <andrew@...n.ch>
---
 drivers/net/phy/phy.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/net/phy/phy.c b/drivers/net/phy/phy.c
index e1a1e54baac2..e24708f1fc16 100644
--- a/drivers/net/phy/phy.c
+++ b/drivers/net/phy/phy.c
@@ -437,8 +437,8 @@ int phy_mii_ioctl(struct phy_device *phydev, struct ifreq *ifr, int cmd)
 				}
 				break;
 			case MII_ADVERTISE:
-				mii_adv_to_linkmode_adv_t(phydev->advertising,
-							  val);
+				mii_adv_mod_linkmode_adv_t(phydev->advertising,
+							   val);
 				change_autoneg = true;
 				break;
 			default:
-- 
2.19.1