• Florian Fainelli's avatar
    net: phy: Allow splitting MDIO bus/device support from PHYs · 90eff909
    Florian Fainelli authored
    
    
    Introduce a new configuration symbol: MDIO_DEVICE which allows building
    the MDIO devices and bus code, without pulling in the entire Ethernet
    PHY library and devices code.
    
    PHYLIB nows select MDIO_DEVICE and the relevant Makefile files are
    updated to reflect that.
    
    When MDIO_DEVICE (MDIO bus/device only) is selected, but not PHYLIB, we
    have mdio-bus.ko as a loadable module, and it does not have a
    module_exit() function because the safety of removing a bus class is
    unclear.
    
    When both MDIO_DEVICE and PHYLIB are enabled, we need to assemble
    everything into a common loadable module: libphy.ko because of nasty
    circular dependencies between phy.c, phy_device.c and mdio_bus.c which
    are really tough to untangle.
    Signed-off-by: default avatarFlorian Fainelli <f.fainelli@gmail.com>
    Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
    90eff909