linux-kernel - Re: [PATCH 3/4] x86/rust: depend on !RETHUNK

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Message-ID: <CANiq72kmtSPp_qi7BWexfr5eOBCSVMgkkYaivtboRrNexKWMpA@mail.gmail.com>
Date:   Sat, 28 Oct 2023 19:46:07 +0200
From:   Miguel Ojeda <miguel.ojeda.sandonis@...il.com>
To:     Miguel Ojeda <ojeda@...nel.org>
Cc:     Thomas Gleixner <tglx@...utronix.de>,
        Ingo Molnar <mingo@...hat.com>, Borislav Petkov <bp@...en8.de>,
        Dave Hansen <dave.hansen@...ux.intel.com>,
        Peter Zijlstra <peterz@...radead.org>,
        Josh Poimboeuf <jpoimboe@...nel.org>,
        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>, x86@...nel.org,
        rust-for-linux@...r.kernel.org, linux-kernel@...r.kernel.org,
        patches@...ts.linux.dev, Andrea Righi <andrea.righi@...onical.com>
Subject: Re: [PATCH 3/4] x86/rust: depend on !RETHUNK

On Mon, Oct 23, 2023 at 7:45 PM Miguel Ojeda <ojeda@...nel.org> wrote:
>
> The Rust compiler does not support the equivalent of
> `-mfunction-return=thunk-extern` yet [1]. Thus, currently, `objtool`
> warns about it, e.g.:

I just realized I did not Cc Andrea when I sent this, which was my
intention -- done here, sorry!

Cheers,
Miguel