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@gmail.com>
Signed-off-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files 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: