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Date:   Thu, 23 Jan 2020 10:41:07 +0100
From:   Wolfram Sang <wsa@the-dreams.de>
To:     Krzysztof Kozlowski <krzk@kernel.org>
Cc:     Jean Delvare <jdelvare@suse.de>,
        Jarkko Nikula <jarkko.nikula@linux.intel.com>,
        linux-i2c@vger.kernel.org, linux-kernel@vger.kernel.org,
        Linux Next Mailing List <linux-next@vger.kernel.org>,
        Kishon Vijay Abraham I <kishon@ti.com>,
        Greg KH <greg@kroah.com>,
        Stephen Rothwell <sfr@canb.auug.org.au>,
        Geert Uytterhoeven <geert@linux-m68k.org>,
        Linux ARM <linux-arm-kernel@lists.infradead.org>
Subject: Re: [PATCH v2 1/2] i2c: Enable compile testing for some of drivers
Message-ID: <20200123094107.GD1105@ninjato>
References: <1578384779-15487-1-git-send-email-krzk@kernel.org>
 <20200123091228.GB1105@ninjato>
 <20200123093120.GA2365@pi3>
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On Thu, Jan 23, 2020 at 10:31:20AM +0100, Krzysztof Kozlowski wrote:
> On Thu, Jan 23, 2020 at 10:12:28AM +0100, Wolfram Sang wrote:
> >=20
> > >  config I2C_ZX2967
> > >  	tristate "ZTE ZX2967 I2C support"
> > > -	depends on ARCH_ZX
> > > -	default y
> > > +	depends on ARCH_ZX || (COMPILE_TEST && (ARC || ARM || ARM64 || M68K=
 || RISCV || SUPERH || SPARC))
> > > +	# COMPILE_TEST needs architectures with readsX()/writesX() primitiv=
es
> >=20
> > The list of archs neither looks pretty nor very maintainable. My
> > suggestion is that we leave this out of COMPILE_TEST until we have
> > something like ARCH_HAS_READS or something. What do you think?
>=20
> Indeed it does not look good. However having compile testing allows
> kbuild to run sparse and smatch which already started pointing minor
> issues in existing drivers.
>=20
> Yeah... pros and cons... I don't have a strong opinion to keep it. Since
> patch is important, maybe let's just skip this part?

Yeah, let's skip it for now. If you or someone is keen on having it,
something like ARCH_HAS_READS (<- needs better name) should be
introduced so we can use it here. But that can/should be handled
incrementally.


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