linux-kernel - Re: [PATCH v9 23/27] Kbuild: add Rust support

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Message-ID: <CANiq72=E9c0YNvww6r=Zj1SHNV9OjvNMUFPD_w8_yJNTX-7-eQ@mail.gmail.com>
Date:   Wed, 17 Aug 2022 22:56:21 +0200
From:   Miguel Ojeda <miguel.ojeda.sandonis@...il.com>
To:     Kees Cook <keescook@...omium.org>
Cc:     Miguel Ojeda <ojeda@...nel.org>,
        Linus Torvalds <torvalds@...ux-foundation.org>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        rust-for-linux@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux-fsdevel@...r.kernel.org, patches@...ts.linux.dev,
        Jarkko Sakkinen <jarkko@...nel.org>,
        Alex Gaynor <alex.gaynor@...il.com>,
        Finn Behrens <me@...enk.de>,
        Adam Bratschi-Kaye <ark.email@...il.com>,
        Wedson Almeida Filho <wedsonaf@...gle.com>,
        Michael Ellerman <mpe@...erman.id.au>,
        Sven Van Asbroeck <thesven73@...il.com>,
        Gary Guo <gary@...yguo.net>,
        Boris-Chengbiao Zhou <bobo1239@....de>,
        Boqun Feng <boqun.feng@...il.com>,
        Douglas Su <d0u9.su@...look.com>,
        Dariusz Sosnowski <dsosnowski@...snowski.pl>,
        Antonio Terceiro <antonio.terceiro@...aro.org>,
        Daniel Xu <dxu@...uu.xyz>,
        Björn Roy Baron <bjorn3_gh@...tonmail.com>,
        Martin Rodriguez Reboredo <yakoyoku@...il.com>,
        Masahiro Yamada <masahiroy@...nel.org>,
        Michal Marek <michal.lkml@...kovi.net>,
        Nick Desaulniers <ndesaulniers@...gle.com>,
        linux-kbuild@...r.kernel.org
Subject: Re: [PATCH v9 23/27] Kbuild: add Rust support

On Wed, Aug 17, 2022 at 10:26 PM Kees Cook <keescook@...omium.org> wrote:
>
> It'd be nice to split this up into maybe per-target patches, but given
> how long this has been getting developed, I'd prefer to avoid blocking
> on that, and just get this series landed so we can move to incremental
> fixes/additions.

When I started the series, I considered several approaches, and in the
end opted for "setup as much as possible before the flag-patch that
enables the Kbuild support", which was simple, though indeed the
Kbuild patch remained fairly big.

Then some people commented on that patch over several versions, so I
kept the simple strategy :)

What I can look into is moving the optional targets out of this patch,
putting them after the "flag-patch", since they may be considered
"additional features" anyway. In fact, for the trimming down in v9, I
thought about removing them entirely. It will not change things too
much, since they are small, but it may help.

For v9 I nevertheless attempted to simplify this patch by doing the
"move all new, big files to their own patch" (see my reply at [1]), so
it is fairly smaller than in previous versions.

[1] https://lore.kernel.org/lkml/CANiq72nzOQSd2vsh2_=0YpGNpY=7agokbgi_vBc5_GF4-02rsA@mail.gmail.com/

Cheers,
Miguel