netdev - Re: FYI: net/phy/marvell10g: android kernel builing error due to modpost error

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Message-ID: <Yl04ttYN95VCXan4@shell.armlinux.org.uk>
Date:   Mon, 18 Apr 2022 11:08:54 +0100
From:   "Russell King (Oracle)" <linux@...linux.org.uk>
To:     Mauro Rossi <issor.oruam@...il.com>
Cc:     netdev@...r.kernel.org, kabel@...nel.org,
        Chih-Wei Huang <cwhuang@...roid-x86.org>
Subject: Re: FYI: net/phy/marvell10g: android kernel builing error due to
 modpost error

On Mon, Apr 18, 2022 at 11:22:12AM +0200, Mauro Rossi wrote:
> At the final stage of building  Linux 5.18-rc3 with the necessary AOSP
> changes, I am getting the following building error:
> 
>   MODPOST modules-only.symvers
> ERROR: modpost: "__compiletime_assert_344"
> [drivers/net/phy/marvell10g.ko] undefined!
> make[2]: *** [/home/utente/r-x86_kernel/kernel/scripts/Makefile.modpost:134:
> modules-only.symvers] Error 1
> make[2]: *** Deleting file 'modules-only.symvers'
> make[1]: *** [/home/utente/r-x86_kernel/kernel/Makefile:1749: modules] Error 2
> make[1]: *** Waiting for unfinished jobs....
> 
> It never happened before throughout all my previous android-x86 kernel
> rc cycle build tests, which spanned from linux version 5.10 to linux
> version 5.18rc

As far as I'm aware, with mainline kernels, marvell10g builds fine.
I'm not sure how to work back from "__compiletime_assert_344" to
where the problem could be. The "344" appears to be generated by
the __COUNTER__ macro - and I don't know how that macro works (debian
annoyingly don't package the GCC info docs, and the info files I have
are out of date.)

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