linux-kernel - Re: [PATCH] rust: Ignore preserve-most functions

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Message-ID: <CAH5fLggk=YEtB798S+vWHV8J6GZ39rXYcvVnm1apt_BOZvAooA@mail.gmail.com>
Date:   Wed, 1 Nov 2023 11:20:22 +0100
From:   Alice Ryhl <aliceryhl@...gle.com>
To:     Matthew Maurer <mmaurer@...gle.com>
Cc:     Miguel Ojeda <ojeda@...nel.org>,
        Alex Gaynor <alex.gaynor@...il.com>,
        Wedson Almeida Filho <wedsonaf@...il.com>,
        Nathan Chancellor <nathan@...nel.org>,
        Nick Desaulniers <ndesaulniers@...gle.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>,
        Tom Rix <trix@...hat.com>, rust-for-linux@...r.kernel.org,
        linux-kernel@...r.kernel.org, llvm@...ts.linux.dev
Subject: Re: [PATCH] rust: Ignore preserve-most functions

On Tue, Oct 31, 2023 at 9:20 PM Matthew Maurer <mmaurer@...gle.com> wrote:
>
> Neither bindgen nor Rust know about the preserve-most calling
> convention, and Clang describes it as unstable. Since we aren't using
> functions with this calling convention from Rust, blocklist them.
>
> These functions are only added to the build when list hardening is
> enabled, which is likely why others didn't notice this yet.
>
> Signed-off-by: Matthew Maurer <mmaurer@...gle.com>

Reviewed-by: Alice Ryhl <aliceryhl@...gle.com>