linux-hardening - Re: [PATCH 5/5] kcfi: Rename CONFIG_CFI_CLANG to CONFIG

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Message-ID: <CANiq72kc7Ky6+7Ny7jR04s8vU-g23qBQC0rQrOZDxDzXT+m1TQ@mail.gmail.com>
Date: Mon, 25 Aug 2025 17:01:13 +0200
From: Miguel Ojeda <miguel.ojeda.sandonis@...il.com>
To: Kees Cook <kees@...nel.org>
Cc: Peter Zijlstra <peterz@...radead.org>, Kees Cook <kees@...flux.net>, 
	Sami Tolvanen <samitolvanen@...gle.com>, Linus Walleij <linus.walleij@...aro.org>, 
	Mark Rutland <mark.rutland@....com>, Puranjay Mohan <puranjay@...nel.org>, 
	David Woodhouse <dwmw2@...radead.org>, Jonathan Corbet <corbet@....net>, 
	Nathan Chancellor <nathan@...nel.org>, x86@...nel.org, linux-doc@...r.kernel.org, 
	linux-kbuild@...r.kernel.org, linux-arm-kernel@...ts.infradead.org, 
	linux-riscv@...ts.infradead.org, llvm@...ts.linux.dev, 
	linux-hardening@...r.kernel.org
Subject: Re: [PATCH 5/5] kcfi: Rename CONFIG_CFI_CLANG to CONFIG_CFI

On Mon, Aug 25, 2025 at 4:28 PM Kees Cook <kees@...nel.org> wrote:
>
> -config CFI_CLANG
> -       bool "Use Clang's Control Flow Integrity (CFI)"
> -       depends on ARCH_SUPPORTS_CFI_CLANG
> +config CFI
> +       bool "Use Kernel Control Flow Integrity (kCFI)"
> +       depends on ARCH_SUPPORTS_CFI
>         depends on $(cc-option,-fsanitize=kcfi)
>         help

Do we need to do something to make the transition smoother, i.e.
keeping the old one for a while to avoid a new question etc.?

Thanks!

Cheers,
Miguel