[PATCH net-next 2/3] net: phy: marvell10g: fix usage of new MMD modifying helpers

[Heiner Kallweit]

When replacing mv3310_modify() with phy_modify_mmd() we missed that
they behave differently, mv3310_modify() returns 1 on a changed
register value whilst phy_modify_mmd() returns 0. Fix this by replacing
phy_modify_mmd() with phy_modify_mmd_changed() where needed.

Fixes: b52c018ddccf ("net: phy: make use of new MMD accessors")
Signed-off-by: Heiner Kallweit <hkallwe...@gmail.com>
---
 drivers/net/phy/marvell10g.c | 13 ++++++-------
 1 file changed, 6 insertions(+), 7 deletions(-)

diff --git a/drivers/net/phy/marvell10g.c b/drivers/net/phy/marvell10g.c
index 96a79c6c7..08362dc65 100644
--- a/drivers/net/phy/marvell10g.c
+++ b/drivers/net/phy/marvell10g.c
@@ -141,10 +141,9 @@ static int mv3310_hwmon_config(struct phy_device *phydev, 
bool enable)
                return ret;
 
        val = enable ? MV_V2_TEMP_CTRL_SAMPLE : MV_V2_TEMP_CTRL_DISABLE;
-       ret = phy_modify_mmd(phydev, MDIO_MMD_VEND2, MV_V2_TEMP_CTRL,
-                            MV_V2_TEMP_CTRL_MASK, val);
 
-       return ret < 0 ? ret : 0;
+       return phy_modify_mmd(phydev, MDIO_MMD_VEND2, MV_V2_TEMP_CTRL,
+                             MV_V2_TEMP_CTRL_MASK, val);
 }
 
 static void mv3310_hwmon_disable(void *data)
@@ -345,7 +344,7 @@ static int mv3310_config_aneg(struct phy_device *phydev)
        linkmode_and(phydev->advertising, phydev->advertising,
                     phydev->supported);
 
-       ret = phy_modify_mmd(phydev, MDIO_MMD_AN, MDIO_AN_ADVERTISE,
+       ret = phy_modify_mmd_changed(phydev, MDIO_MMD_AN, MDIO_AN_ADVERTISE,
                             ADVERTISE_ALL | ADVERTISE_100BASE4 |
                             ADVERTISE_PAUSE_CAP | ADVERTISE_PAUSE_ASYM,
                             linkmode_adv_to_mii_adv_t(phydev->advertising));
@@ -355,7 +354,7 @@ static int mv3310_config_aneg(struct phy_device *phydev)
                changed = true;
 
        reg = linkmode_adv_to_mii_ctrl1000_t(phydev->advertising);
-       ret = phy_modify_mmd(phydev, MDIO_MMD_AN, MV_AN_CTRL1000,
+       ret = phy_modify_mmd_changed(phydev, MDIO_MMD_AN, MV_AN_CTRL1000,
                             ADVERTISE_1000FULL | ADVERTISE_1000HALF, reg);
        if (ret < 0)
                return ret;
@@ -369,8 +368,8 @@ static int mv3310_config_aneg(struct phy_device *phydev)
        else
                reg = 0;
 
-       ret = phy_modify_mmd(phydev, MDIO_MMD_AN, MDIO_AN_10GBT_CTRL,
-                            MDIO_AN_10GBT_CTRL_ADV10G, reg);
+       ret = phy_modify_mmd_changed(phydev, MDIO_MMD_AN, MDIO_AN_10GBT_CTRL,
+                                    MDIO_AN_10GBT_CTRL_ADV10G, reg);
        if (ret < 0)
                return ret;
        if (ret > 0)
-- 
2.20.1