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

[Nathan Chancellor]

On Fri, Aug 02, 2019 at 06:11:32PM -0700, David Miller wrote:
> From: Nathan Chancellor <natechancellor at 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.

Hmmmm, is that not what I did?

Although I did not know about io-64-nonatomic-hi-lo.h. What is the
difference and which one is needed here?

There is apparently another failure when OF_MDIO is not set, I guess I
can try to look into that as well and respin into a series if
necessary.

Cheers,
Nathan