Commit c4933fa8 authored by Russell King (Oracle)'s avatar Russell King (Oracle) Committed by Jakub Kicinski
Browse files

net: mdio: add mdio_device_get() and mdio_device_put() 



Add two new operations for a mdio device to manage the refcount on the
underlying struct device. This will be used by mdio PCS drivers to
simplify the creation and destruction handling, making it easier for
users to get it correct.

Signed-off-by: default avatarRussell King (Oracle) <rmk+kernel@armlinux.org.uk>
Reviewed-by: default avatarAndrew Lunn <andrew@lunn.ch>
Signed-off-by: default avatarJakub Kicinski <kuba@kernel.org>
parent 75455b90

include/linux/mdio.h

+10 −0
Original line number Diff line number Diff line
@@ -106,6 +106,16 @@ int mdio_driver_register(struct mdio_driver *drv); 
void mdio_driver_unregister(struct mdio_driver *drv);

int mdio_device_bus_match(struct device *dev, struct device_driver *drv);



static inline void mdio_device_get(struct mdio_device *mdiodev)

{

	get_device(&mdiodev->dev);

}



static inline void mdio_device_put(struct mdio_device *mdiodev)

{

	mdio_device_free(mdiodev);

}



static inline bool mdio_phy_id_is_c45(int phy_id)

{

	return (phy_id & MDIO_PHY_ID_C45) && !(phy_id & ~MDIO_PHY_ID_C45_MASK);