On 06/21/2017 03:06 PM, Arnd Bergmann wrote:
> The driver attempts to 'select MDIO_DEVICE', but the code
> is actually a loadable module when PHYLIB=m:
>
> drivers/phy/broadcom/phy-bcm-ns-usb3.o: In function
> `bcm_ns_usb3_mdiodev_phy_write':
> phy-bcm-ns-usb3.c:(.text.bcm_ns_usb3_mdiodev_phy_write+0x28): undefined
> reference to `mdiobus_write'
> drivers/phy/broadcom/phy-bcm-ns-usb3.o: In function `bcm_ns_usb3_module_exit':
> phy-bcm-ns-usb3.c:(.exit.text+0x18): undefined reference to
> `mdio_driver_unregister'
> drivers/phy/broadcom/phy-bcm-ns-usb3.o: In function `bcm_ns_usb3_module_init':
> phy-bcm-ns-usb3.c:(.init.text+0x18): undefined reference to
> `mdio_driver_register'
> phy-bcm-ns-usb3.c:(.init.text+0x38): undefined reference to
> `mdio_driver_unregister'
>
> Using 'depends on MDIO_BUS' instead will avoid the link error.
>
> Fixes: af850e14a7ae ("phy: bcm-ns-usb3: add MDIO driver using proper bus
> layer")
> Signed-off-by: Arnd Bergmann <[email protected]>
Reviewed-by: Florian Fainelli <[email protected]>
--
Florian
