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Date:   Mon, 15 Aug 2022 07:59:12 -0700
From:   Colin Foster <colin.foster@...advantage.com>
To:     Ido Schimmel <idosch@...sch.org>
Cc:     linux-arm-kernel@...ts.infradead.org, linux-gpio@...r.kernel.org,
        netdev@...r.kernel.org, linux-kernel@...r.kernel.org,
        devicetree@...r.kernel.org, Terry Bowman <terry.bowman@....com>,
        Vladimir Oltean <vladimir.oltean@....com>,
        Wolfram Sang <wsa@...nel.org>,
        Andy Shevchenko <andy.shevchenko@...il.com>,
        UNGLinuxDriver@...rochip.com,
        Steen Hegelund <Steen.Hegelund@...rochip.com>,
        Lars Povlsen <lars.povlsen@...rochip.com>,
        Linus Walleij <linus.walleij@...aro.org>,
        Paolo Abeni <pabeni@...hat.com>,
        Jakub Kicinski <kuba@...nel.org>,
        Eric Dumazet <edumazet@...gle.com>,
        "David S. Miller" <davem@...emloft.net>,
        Russell King <linux@...linux.org.uk>,
        Heiner Kallweit <hkallweit1@...il.com>,
        Andrew Lunn <andrew@...n.ch>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Rob Herring <robh+dt@...nel.org>,
        Lee Jones <lee.jones@...aro.org>,
        katie.morris@...advantage.com,
        Jonathan Cameron <Jonathan.Cameron@...wei.com>,
        Dan Williams <dan.j.williams@...el.com>,
        Lee Jones <lee@...nel.org>
Subject: Re: [PATCH v16 mfd 8/8] mfd: ocelot: add support for the vsc7512
 chip via spi

On Mon, Aug 15, 2022 at 05:35:12PM +0300, Ido Schimmel wrote:
> On Mon, Aug 15, 2022 at 07:19:13AM -0700, Colin Foster wrote:
> > Something is going on that I don't fully understand with <asm/byteorder.h>.
> > I don't quite see how ocelot-core is throwing all sorts of errors in x86
> > builds now:
> > 
> > https://patchwork.hopto.org/static/nipa/667471/12942993/build_allmodconfig_warn/stderr
> > 
> > Snippet from there:
> > 
> > /home/nipa/nipa/tests/patch/build_32bit/build_32bit.sh: line 21: ccache gcc: command not found
> > ../drivers/mfd/ocelot-spi.c: note: in included file (through ../include/linux/bitops.h, ../include/linux/kernel.h, ../arch/x86/include/asm/percpu.h, ../arch/x86/include/asm/current.h, ../include/linux/sched.h, ...):
> > ../arch/x86/include/asm/bitops.h:66:1: warning: unreplaced symbol 'return'
> > ../drivers/mfd/ocelot-spi.c: note: in included file (through ../include/linux/bitops.h, ../include/linux/kernel.h, ../arch/x86/include/asm/percpu.h, ../arch/x86/include/asm/current.h, ../include/linux/sched.h, ...):
> > ../include/asm-generic/bitops/generic-non-atomic.h:29:9: warning: unreplaced symbol 'mask'
> > ../include/asm-generic/bitops/generic-non-atomic.h:30:9: warning: unreplaced symbol 'p'
> > ../include/asm-generic/bitops/generic-non-atomic.h:32:10: warning: unreplaced symbol 'p'
> > ../include/asm-generic/bitops/generic-non-atomic.h:32:16: warning: unreplaced symbol 'mask'
> > ../include/asm-generic/bitops/generic-non-atomic.h:27:1: warning: unreplaced symbol 'return'
> > ../drivers/mfd/ocelot-spi.c: note: in included file (through ../arch/x86/include/asm/bitops.h, ../include/linux/bitops.h, ../include/linux/kernel.h, ../arch/x86/include/asm/percpu.h, ../arch/x86/include/asm/current.h, ...):
> > ../include/asm-generic/bitops/instrumented-non-atomic.h:26:1: warning: unreplaced symbol 'return'
> > 
> > 
> > <asm/byteorder.h> was included in both drivers/mfd/ocelot-spi.c and
> > drivers/mfd/ocelot.h previously, though Andy pointed out there didn't
> > seem to be any users... and I didn't either. I'm sure there's something
> > I must be missing.
> 
> I got similar errors in our internal CI yesterday. Fixed by compiling
> sparse from git:
> https://git.kernel.org/pub/scm/devel/sparse/sparse.git/commit/?id=0e1aae55e49cad7ea43848af5b58ff0f57e7af99
> 
> The update is also available in the "testing" repo in case you are
> running Fedora 35 / 36:
> https://bodhi.fedoraproject.org/updates/FEDORA-2022-c58b53730f
> https://bodhi.fedoraproject.org/updates/FEDORA-2022-2bc333ccac

Thanks for the info! I haven't been able to fully recreate the issue
locally, those are from kernel test robot. I'll give this a shot if I
run into it locally though.

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