linux-kernel - Re: [PATCH] docs: rust: add "The Rust experiment" section

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Message-ID: <CANiq72=E7TPLcq-yiQF9E8a33ghbogPcbv-yMqFKBxMQ0oOxNQ@mail.gmail.com>
Date:   Wed, 18 Oct 2023 18:41:10 +0200
From:   Miguel Ojeda <miguel.ojeda.sandonis@...il.com>
To:     Andrew Lunn <andrew@...n.ch>
Cc:     Miguel Ojeda <ojeda@...nel.org>, Jonathan Corbet <corbet@....net>,
        Wedson Almeida Filho <wedsonaf@...il.com>,
        Alex Gaynor <alex.gaynor@...il.com>,
        Boqun Feng <boqun.feng@...il.com>, Gary Guo <gary@...yguo.net>,
        Björn Roy Baron <bjorn3_gh@...tonmail.com>,
        Benno Lossin <benno.lossin@...ton.me>,
        Andreas Hindborg <a.hindborg@...sung.com>,
        Alice Ryhl <aliceryhl@...gle.com>, linux-doc@...r.kernel.org,
        rust-for-linux@...r.kernel.org, linux-kernel@...r.kernel.org,
        patches@...ts.linux.dev
Subject: Re: [PATCH] docs: rust: add "The Rust experiment" section

On Wed, Oct 18, 2023 at 6:27 PM Andrew Lunn <andrew@...n.ch> wrote:
>
> It very unlikely end users read this document.

We can add a note to the Kconfig symbol too -- would that be OK with you?

> And that statement is
> not limited to end users, it is true for everybody.

Agreed, but that bit is meant to emphasize that end users do not have
a reason to use it at all (unlike kernel developers etc. from the
previous paragraph)

> What we should be saying is that Rust for the Linux kernel in general
> is not ready for production use. Developing drivers in Rust is
> currently for experimentation only. Given the experimental nature of
> the work, there is some risk Rust will never be ready for production
> use.

The risk is that Rust gets dropped from the kernel because it is not
used enough, not so much that there is a fundamental problem to solve
in order to reach production.

Cheers,
Miguel