netdev - Re: [PATCH 13/18] crypto: octeontx2: fix objects shared between several modules

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Message-ID: <CAK7LNATyMmumYek9ojw5fUsdM=F9cOuK082TOuM84tjrGVaEDA@mail.gmail.com>
Date:   Thu, 24 Nov 2022 01:26:43 +0900
From:   Masahiro Yamada <masahiroy@...nel.org>
To:     Alexander Lobakin <alobakin@...me>
Cc:     linux-kbuild@...r.kernel.org, Nicolas Schier <nicolas@...sle.eu>,
        Jens Axboe <axboe@...nel.dk>,
        Boris Brezillon <bbrezillon@...nel.org>,
        Borislav Petkov <bp@...en8.de>,
        Tony Luck <tony.luck@...el.com>,
        Miquel Raynal <miquel.raynal@...tlin.com>,
        Vladimir Oltean <vladimir.oltean@....com>,
        Alexandre Belloni <alexandre.belloni@...tlin.com>,
        Derek Chickles <dchickles@...vell.com>,
        Ioana Ciornei <ioana.ciornei@....com>,
        Salil Mehta <salil.mehta@...wei.com>,
        Sunil Goutham <sgoutham@...vell.com>,
        Grygorii Strashko <grygorii.strashko@...com>,
        Daniel Scally <djrscally@...il.com>,
        Hans de Goede <hdegoede@...hat.com>,
        Mark Brown <broonie@...nel.org>,
        Andy Shevchenko <andriy.shevchenko@...ux.intel.com>,
        NXP Linux Team <linux-imx@....com>, netdev@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH 13/18] crypto: octeontx2: fix objects shared between
 several modules

On Sun, Nov 20, 2022 at 8:09 AM Alexander Lobakin <alobakin@...me> wrote:
>
> cn10k_cpt.o, otx2_cptlf.o and otx2_cpt_mbox_common.o are linked
> into both rvu_cptpf and rvu_cptvf modules:
>
> > scripts/Makefile.build:252: ./drivers/crypto/marvell/octeontx2/Makefile:
> > cn10k_cpt.o is added to multiple modules: rvu_cptpf rvu_cptvf
> > scripts/Makefile.build:252: ./drivers/crypto/marvell/octeontx2/Makefile:
> > otx2_cptlf.o is added to multiple modules: rvu_cptpf rvu_cptvf
> > scripts/Makefile.build:252: ./drivers/crypto/marvell/octeontx2/Makefile:
> > otx2_cpt_mbox_common.o is added to multiple modules: rvu_cptpf rvu_cptvf
>
> Despite they're build under the same Kconfig option
> (CONFIG_CRYPTO_DEV_OCTEONTX2_CPT), it's better do link the common
> code into a standalone module and export the shared functions. Under
> certain circumstances, this can lead to the same situation as fixed
> by commit 637a642f5ca5 ("zstd: Fixing mixed module-builtin objects").
> Plus, those three common object files are relatively big to duplicate
> them several times.
>
> Introduce the new module, rvu_cptcommon, to provide the common
> functions to both modules.
>
> Fixes: 19d8e8c7be15 ("crypto: octeontx2 - add virtual function driver support")
> Suggested-by: Masahiro Yamada <masahiroy@...nel.org>
> Signed-off-by: Alexander Lobakin <alobakin@...me>
> ---



Reviewed-by: Masahiro Yamada <masahiroy@...nel.org>




-- 
Best Regards
Masahiro Yamada