diff --git a/drivers/net/phy/mdio_bus.c b/drivers/net/phy/mdio_bus.c
index 6f4b4e5df6397cbc836b60ccedaece93cef48408..d8b68145f6b447729f05f7911b0aa25e48979f73 100644
--- a/drivers/net/phy/mdio_bus.c
+++ b/drivers/net/phy/mdio_bus.c
@@ -926,6 +926,28 @@ int mdiobus_modify(struct mii_bus *bus, int addr, u32 regnum, u16 mask, u16 set)
 }
 EXPORT_SYMBOL_GPL(mdiobus_modify);
 
+/**
+ * mdiobus_modify_changed - Convenience function for modifying a given mdio
+ *	device register and returning if it changed
+ * @bus: the mii_bus struct
+ * @addr: the phy address
+ * @regnum: register number to write
+ * @mask: bit mask of bits to clear
+ * @set: bit mask of bits to set
+ */
+int mdiobus_modify_changed(struct mii_bus *bus, int addr, u32 regnum,
+			   u16 mask, u16 set)
+{
+	int err;
+
+	mutex_lock(&bus->mdio_lock);
+	err = __mdiobus_modify_changed(bus, addr, regnum, mask, set);
+	mutex_unlock(&bus->mdio_lock);
+
+	return err;
+}
+EXPORT_SYMBOL_GPL(mdiobus_modify_changed);
+
 /**
  * mdio_bus_match - determine if given MDIO driver supports the given
  *		    MDIO device
diff --git a/include/linux/mdio.h b/include/linux/mdio.h
index 5e6dc38f418e48c3b2ce3f3d08a10ae6bbb3e675..f622888a4ba826771142521090bdd987348f31b2 100644
--- a/include/linux/mdio.h
+++ b/include/linux/mdio.h
@@ -349,6 +349,8 @@ int mdiobus_write(struct mii_bus *bus, int addr, u32 regnum, u16 val);
 int mdiobus_write_nested(struct mii_bus *bus, int addr, u32 regnum, u16 val);
 int mdiobus_modify(struct mii_bus *bus, int addr, u32 regnum, u16 mask,
 		   u16 set);
+int mdiobus_modify_changed(struct mii_bus *bus, int addr, u32 regnum,
+			   u16 mask, u16 set);
 
 static inline u32 mdiobus_c45_addr(int devad, u16 regnum)
 {