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Date:   Tue, 06 Jun 2023 12:34:43 +0200
From:   "Arnd Bergmann" <arnd@arndb.de>
To:     "Geert Uytterhoeven" <geert@linux-m68k.org>
Cc:     "Naresh Kamboju" <naresh.kamboju@linaro.org>,
        "open list" <linux-kernel@vger.kernel.org>,
        linux-next <linux-next@vger.kernel.org>,
        lkft-triage@lists.linaro.org,
        clang-built-linux <llvm@lists.linux.dev>,
        Linux-Renesas <linux-renesas-soc@vger.kernel.org>,
        "Linux ARM" <linux-arm-kernel@lists.infradead.org>,
        Netdev <netdev@vger.kernel.org>,
        "Nathan Chancellor" <nathan@kernel.org>,
        "Nick Desaulniers" <ndesaulniers@google.com>,
        "Anders Roxell" <anders.roxell@linaro.org>,
        "Geert Uytterhoeven" <geert+renesas@glider.be>,
        "David S . Miller" <davem@davemloft.net>,
        "Eric Dumazet" <edumazet@google.com>,
        "Jakub Kicinski" <kuba@kernel.org>,
        "Paolo Abeni" <pabeni@redhat.com>,
        "Maxime Coquelin" <mcoquelin.stm32@gmail.com>,
        maxime.chevallier@bootlin.com,
        "Simon Horman" <simon.horman@corigine.com>
Subject: Re: arm: shmobile_defconfig: ld.lld: error: undefined symbol: lynx_pcs_destroy
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On Tue, Jun 6, 2023, at 12:31, Geert Uytterhoeven wrote:
> On Tue, Jun 6, 2023 at 12:21=E2=80=AFPM Arnd Bergmann <arnd@arndb.de> =
wrote:
>> On Tue, Jun 6, 2023, at 11:28, Geert Uytterhoeven wrote:
>> > On Tue, Jun 6, 2023 at 11:16=E2=80=AFAM Arnd Bergmann <arnd@arndb.d=
e> wrote:
>> >> On Tue, Jun 6, 2023, at 11:01, Geert Uytterhoeven wrote:
>> >>
>> >> This won't work when PCS_LYNX is a loadable module and
>> >> STMMAC is built-in. I think we should just select PCS_LYNX
>> >
>> > Oops, you're right, forgot about that case.
>> > What about using IS_REACHABLE() instead?
>> > No, that won't work either, as DWMAC_SOCFPGA can be modular,
>> > with STMMAC builtin.
>>
>> It would work because of the 'select PCS_LYNX' below DWMAC_SOCFPGA,
>
> That was my first thought, but it won't work, as DWMAC_SOCFPGA=3Dm
> causes PCS_LYNX=3Dm, while main STMMAC can still be builtin.

Right, got it now.

     Arnd