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From:   Marcin Wojtas <mw@semihalf.com>
Date:   Thu, 24 Jun 2021 09:05:28 +0200
Message-ID: <CAPv3WKdPxhS6_kAe5Z=sJcss=kYf4CR4DThLL_Sdete3Hk95Dg@mail.gmail.com>
Subject: Re: linux-next: build failure after merge of the net-next tree
To:     Naresh Kamboju <naresh.kamboju@linaro.org>
Cc:     Stephen Rothwell <sfr@canb.auug.org.au>,
        David Miller <davem@davemloft.net>,
        Networking <netdev@vger.kernel.org>,
        Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
        Linux Next Mailing List <linux-next@vger.kernel.org>,
        Nathan Chancellor <nathan@kernel.org>,
        lkft-triage@lists.linaro.org
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Hi All,


czw., 24 cze 2021 o 08:13 Naresh Kamboju <naresh.kamboju@linaro.org> napisa=
=C5=82(a):
>
> Hi Marcin,
>
> On Thu, 24 Jun 2021 at 07:59, Nathan Chancellor <nathan@kernel.org> wrote=
:
> >
> > On Thu, Jun 24, 2021 at 12:46:48AM +0200, Marcin Wojtas wrote:
> > > Hi Stephen,
> > >
> > > czw., 24 cze 2021 o 00:29 Stephen Rothwell <sfr@canb.auug.org.au> nap=
isa=C5=82(a):
> > > >
> > > > Hi all,
> > > >
> > > > Today's linux-next build (x86_64 modules_install) failed like this:
> > > >
> > > > depmod: ../tools/depmod.c:1792: depmod_report_cycles_from_root: Ass=
ertion `is < stack_size' failed.
>
> LKFT test farm found this build error.
>
> Regressions found on mips:
>
>  - build/gcc-9-malta_defconfig
>  - build/gcc-10-malta_defconfig
>  - build/gcc-8-malta_defconfig
>
> depmod: ERROR: Cycle detected: fwnode_mdio -> of_mdio -> fwnode_mdio
> depmod: ERROR: Found 2 modules in dependency cycles!
> make[1]: *** [/builds/linux/Makefile:1875: modules_install] Error 1
>
> > > Thank you for letting us know. Not sure if related, but I just found
> > > out that this code won't compile for the !CONFIG_FWNODE_MDIO. Below
> > > one-liner fixes it:
> > >
> > > --- a/include/linux/fwnode_mdio.h
> > > +++ b/include/linux/fwnode_mdio.h
> > > @@ -40,7 +40,7 @@ static inline int fwnode_mdiobus_register(struct mi=
i_bus *bus,
> > >          * This way, we don't have to keep compat bits around in driv=
ers.
> > >          */
> > >
> > > -       return mdiobus_register(mdio);
> > > +       return mdiobus_register(bus);
> > >  }
> > >  #endif
> > >
> > > I'm curious if this is the case. Tomorrow I'll resubmit with above, s=
o
> > > I'd appreciate recheck.
>
> This proposed fix did not work.
>
> > Reverting all the patches in that series fixes the issue for me.
>
> Yes.
> Reverting all the (6) patches in that series fixed this build problem.
>
> git log --oneline | head
> 3752a7bfe73e Revert "Documentation: ACPI: DSD: describe additional MAC
> configuration"
> da53528ed548 Revert "net: mdiobus: Introduce fwnode_mdbiobus_register()"
> 479b72ae8b68 Revert "net/fsl: switch to fwnode_mdiobus_register"
> 92f85677aff4 Revert "net: mvmdio: add ACPI support"
> 3d725ff0f271 Revert "net: mvpp2: enable using phylink with ACPI"
> ffa8c267d44e Revert "net: mvpp2: remove unused 'has_phy' field"
> d61c8b66c840 Add linux-next specific files for 20210623
>
> steps to reproduce, config and build log located here in this link,
> https://builds.tuxbuild.com/1uNjGjPUAI4XwwcwKFr5FUxkwzy/
>

Thank you for your reports. I'm currently trying to reproduce and come
back with a fix asap.

Best regards,
Marcin

>
> # TuxMake is a command line tool and Python library that provides
> # portable and repeatable Linux kernel builds across a variety of
> # architectures, toolchains, kernel configurations, and make targets.
> #
> # TuxMake supports the concept of runtimes.
> # See https://docs.tuxmake.org/runtimes/, for that to work it requires
> # that you install podman or docker on your system.
> #
> # To install tuxmake on your system globally:
> # sudo pip3 install -U tuxmake
> #
> # See https://docs.tuxmake.org/ for complete documentation.
>
>
> tuxmake --runtime podman --target-arch mips --toolchain gcc-10
> --kconfig malta_defconfig
>
>
> - Naresh