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

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Date:   Fri, 2 Aug 2019 18:39:52 -0700
From:   Matthew Wilcox <willy@...radead.org>
To:     Nathan Chancellor <natechancellor@...il.com>
Cc:     David Miller <davem@...emloft.net>, andrew@...n.ch,
        broonie@...nel.org, devel@...verdev.osuosl.org,
        f.fainelli@...il.com, gregkh@...uxfoundation.org,
        hkallweit1@...il.com, kernel-build-reports@...ts.linaro.org,
        linux-arm-kernel@...ts.infradead.org, linux-next@...r.kernel.org,
        netdev@...r.kernel.org, lkp@...el.com, rdunlap@...radead.org
Subject: Re: [PATCH] net: mdio-octeon: Fix build error and Kconfig warning

On Fri, Aug 02, 2019 at 06:30:31PM -0700, Nathan Chancellor wrote:
> On Fri, Aug 02, 2019 at 06:11:32PM -0700, David Miller wrote:
> > 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?

Whether you write the high or low 32 bits first.  For this, it doesn't
matter, since the compiled driver will never be run on real hardware.

> 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.

Thanks for taking care of that!