Re: [PATCH] net: mdio-octeon: Fix build error and Kconfig warning

From: Nathan Chancellor natechancellor@gmail.com Date: Wed, 31 Jul 2019 11:50:24 -0700

arm allyesconfig warns:

WARNING: unmet direct dependencies detected for MDIO_OCTEON Depends on [n]: NETDEVICES [=y] && MDIO_DEVICE [=y] && MDIO_BUS [=y] && 64BIT && HAS_IOMEM [=y] && OF_MDIO [=y] Selected by [y]:

• OCTEON_ETHERNET [=y] && STAGING [=y] && (CAVIUM_OCTEON_SOC &&

NETDEVICES [=y] || COMPILE_TEST [=y])

and errors:

In file included from ../drivers/net/phy/mdio-octeon.c:14: ../drivers/net/phy/mdio-octeon.c: In function 'octeon_mdiobus_probe': ../drivers/net/phy/mdio-cavium.h:111:36: error: implicit declaration of function 'writeq'; did you mean 'writeb'?

The proper way to fix this is to include either

linux/io-64-nonatomic-hi-lo.h

or

linux/io-64-nonatomic-lo-hi.h

whichever is appropriate.