linux-kernel - Re: [PATCH] x86/Kconfig: make CFI_AUTO

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Message-ID: <CANiq72k0AM3v9JZe=8mDN6T1ToiAt1-1e1zJ3z0Oh6ZWfchzag@mail.gmail.com>
Date: Tue, 15 Apr 2025 17:15:31 +0200
From: Miguel Ojeda <miguel.ojeda.sandonis@...il.com>
To: Peter Zijlstra <peterz@...radead.org>
Cc: Alice Ryhl <aliceryhl@...gle.com>, Paweł Anikiel <panikiel@...gle.com>, 
	Sami Tolvanen <samitolvanen@...gle.com>, Kees Cook <kees@...nel.org>, 
	Alex Gaynor <alex.gaynor@...il.com>, Borislav Petkov <bp@...en8.de>, 
	Dave Hansen <dave.hansen@...ux.intel.com>, Ingo Molnar <mingo@...hat.com>, 
	Josh Poimboeuf <jpoimboe@...nel.org>, Masahiro Yamada <masahiroy@...nel.org>, 
	Miguel Ojeda <ojeda@...nel.org>, Thomas Gleixner <tglx@...utronix.de>, 
	Nathan Chancellor <nathan@...nel.org>, x86@...nel.org, linux-kernel@...r.kernel.org, 
	rust-for-linux@...r.kernel.org, Matthew Maurer <mmaurer@...gle.com>, 
	Ramon de C Valle <rcvalle@...gle.com>
Subject: Re: [PATCH] x86/Kconfig: make CFI_AUTO_DEFAULT depend on !RUST

On Thu, Apr 10, 2025 at 4:00 PM Alice Ryhl <aliceryhl@...gle.com> wrote:
>
> I submitted a PR that I believe should fix it:
> https://github.com/rust-lang/rust/pull/139632

This landed, scheduled for Rust 1.88 (2025-06-26) if all goes well.

Peter: are you OK with landing a patch like this? Well, modified to
look like this now that we know the version:

    depends on FINEIBT
    depends on !RUST || RUSTC_VERSION >= 108800

(assuming we confirm the nightly build works properly)

Thanks!

Cheers,
Miguel