linux-kernel - Re: [PATCH v3 01/30] mfd: Makefile: Remove build option for MFD:sun4i-gpadc

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Date:   Sun, 2 Sep 2018 20:58:46 +0100
From:   Jonathan Cameron <jic23@...nel.org>
To:     Maxime Ripard <maxime.ripard@...tlin.com>
Cc:     Philipp Rossak <embed3d@...il.com>, lee.jones@...aro.org,
        robh+dt@...nel.org, mark.rutland@....com, wens@...e.org,
        linux@...linux.org.uk, knaack.h@....de, lars@...afoo.de,
        pmeerw@...erw.net, eugen.hristev@...rochip.com,
        rdunlap@...radead.org, vilhelm.gray@...il.com,
        clabbe.montjoie@...il.com, quentin.schulz@...tlin.com,
        geert+renesas@...der.be, lukas@...ner.de, icenowy@...c.io,
        arnd@...db.de, broonie@...nel.org, arnaud.pouliquen@...com,
        linux-iio@...r.kernel.org, devicetree@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
        linux-sunxi@...glegroups.com
Subject: Re: [PATCH v3 01/30] mfd: Makefile: Remove build option for
 MFD:sun4i-gpadc

On Fri, 31 Aug 2018 10:25:45 +0200
Maxime Ripard <maxime.ripard@...tlin.com> wrote:

> Hi Philipp,
> 
> First, thanks for doing that rework. It was needed, and it's very much
> appreciated :)
> 
> As you can imagine though, I have a bunch of comments.
> 
> On Thu, Aug 30, 2018 at 05:44:49PM +0200, Philipp Rossak wrote:
> > Since we are merging the mfd driver into the sun4i-gpadc driver we need
> > to remove the build options for the sun4i-gpadc driver.
> > 
> > Signed-off-by: Philipp Rossak <embed3d@...il.com>
> > ---
> >  drivers/mfd/Makefile | 1 -
> >  1 file changed, 1 deletion(-)
> > 
> > diff --git a/drivers/mfd/Makefile b/drivers/mfd/Makefile
> > index e9fd20dba18d..c680994db988 100644
> > --- a/drivers/mfd/Makefile
> > +++ b/drivers/mfd/Makefile
> > @@ -220,7 +220,6 @@ obj-$(CONFIG_INTEL_SOC_PMIC_CHTDC_TI)	+= intel_soc_pmic_chtdc_ti.o
> >  obj-$(CONFIG_MFD_MT6397)	+= mt6397-core.o
> >  
> >  obj-$(CONFIG_MFD_ALTERA_A10SR)	+= altera-a10sr.o
> > -obj-$(CONFIG_MFD_SUN4I_GPADC)	+= sun4i-gpadc.o  
> 
> One of the things we should strive for is bisectability, which means
> being able to have a working driver at every point in time while
> introducing the features.
> 
> In this particular case, this isn't really a problem since you're
> removing part of code that were never really enabled, but you should
> at least document why in your commit log.
> 
Agreed. I for one don't know / can't remember why this would make sense!

Jonathan
> Thanks!
> Maxime
>