diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c b/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c
index 93699d2ae051..43a44c1e1576 100644
--- a/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c
+++ b/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c
@@ -8937,7 +8937,8 @@ ixgbe_mdio_read(struct net_device *netdev, int prtad, int devad, u16 addr)
 		int regnum = addr;
 
 		if (devad != MDIO_DEVAD_NONE)
-			regnum |= (devad << 16) | MII_ADDR_C45;
+			return mdiobus_c45_read(adapter->mii_bus, prtad,
+						devad, regnum);
 
 		return mdiobus_read(adapter->mii_bus, prtad, regnum);
 	}
@@ -8960,7 +8961,8 @@ static int ixgbe_mdio_write(struct net_device *netdev, int prtad, int devad,
 		int regnum = addr;
 
 		if (devad != MDIO_DEVAD_NONE)
-			regnum |= (devad << 16) | MII_ADDR_C45;
+			return mdiobus_c45_write(adapter->mii_bus, prtad, devad,
+						 regnum, value);
 
 		return mdiobus_write(adapter->mii_bus, prtad, regnum, value);
 	}