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References: <20231018160922.1018962-1-ojeda@kernel.org> <d47553f1-1832-4c69-8a8c-71c58048ff30@lunn.ch>
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From:   Miguel Ojeda <miguel.ojeda.sandonis@gmail.com>
Date:   Wed, 18 Oct 2023 18:41:10 +0200
Message-ID: <CANiq72=E7TPLcq-yiQF9E8a33ghbogPcbv-yMqFKBxMQ0oOxNQ@mail.gmail.com>
Subject: Re: [PATCH] docs: rust: add "The Rust experiment" section
To:     Andrew Lunn <andrew@lunn.ch>
Cc:     Miguel Ojeda <ojeda@kernel.org>, Jonathan Corbet <corbet@lwn.net>,
        Wedson Almeida Filho <wedsonaf@gmail.com>,
        Alex Gaynor <alex.gaynor@gmail.com>,
        Boqun Feng <boqun.feng@gmail.com>, Gary Guo <gary@garyguo.net>,
        =?UTF-8?Q?Bj=C3=B6rn_Roy_Baron?= <bjorn3_gh@protonmail.com>,
        Benno Lossin <benno.lossin@proton.me>,
        Andreas Hindborg <a.hindborg@samsung.com>,
        Alice Ryhl <aliceryhl@google.com>, linux-doc@vger.kernel.org,
        rust-for-linux@vger.kernel.org, linux-kernel@vger.kernel.org,
        patches@lists.linux.dev
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On Wed, Oct 18, 2023 at 6:27=E2=80=AFPM Andrew Lunn <andrew@lunn.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