linux-kernel - Re: [PATCH v2 1/2] i2c: Enable compile testing for some of drivers

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Date:   Thu, 23 Jan 2020 10:41:07 +0100
From:   Wolfram Sang <wsa@...-dreams.de>
To:     Krzysztof Kozlowski <krzk@...nel.org>
Cc:     Jean Delvare <jdelvare@...e.de>,
        Jarkko Nikula <jarkko.nikula@...ux.intel.com>,
        linux-i2c@...r.kernel.org, linux-kernel@...r.kernel.org,
        Linux Next Mailing List <linux-next@...r.kernel.org>,
        Kishon Vijay Abraham I <kishon@...com>,
        Greg KH <greg@...ah.com>,
        Stephen Rothwell <sfr@...b.auug.org.au>,
        Geert Uytterhoeven <geert@...ux-m68k.org>,
        Linux ARM <linux-arm-kernel@...ts.infradead.org>
Subject: Re: [PATCH v2 1/2] i2c: Enable compile testing for some of drivers

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:
> > 
> > >  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() primitives
> > 
> > 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?
> 
> 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.
> 
> 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.


Download attachment "signature.asc" of type "application/pgp-signature" (834 bytes)