linux-kernel - Re: [PATCH] CFI: Move function

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Date:   Wed,  2 Jun 2021 11:53:28 -0700
From:   Kees Cook <keescook@...omium.org>
To:     linux-kernel@...r.kernel.org, Mark Rutland <mark.rutland@....com>,
        linux-arm-kernel@...ts.infradead.org
Cc:     Kees Cook <keescook@...omium.org>,
        Nathan Chancellor <nathan@...nel.org>,
        Will Deacon <will@...nel.org>,
        Catalin Marinas <catalin.marinas@....com>,
        Sami Tolvanen <samitolvanen@...gle.com>
Subject: Re: [PATCH] CFI: Move function_nocfi() into compiler.h

On Wed, 2 Jun 2021 16:37:01 +0100, Mark Rutland wrote:
> Currently the common definition of function_nocfi() is provided by
> <linux/mm.h>, and architectures are expected to provide a definition in
> <asm/memory.h>. Due to header dependencies, this can make it hard to use
> function_nocfi() in low-level headers.
> 
> As function_nocfi() has no dependency on any mm code, nor on any memory
> definitions, it doesn't need to live in <linux/mm.h> or <asm/memory.h>.
> Generally, it would make more sense for it to live in
> <linux/compiler.h>, where an architecture can override it in
> <asm/compiler.h>.
> 
> [...]

Applied to for-next/clang/features, thanks!

[1/1] CFI: Move function_nocfi() into compiler.h
      https://git.kernel.org/kees/c/2d35ea27e0df

-- 
Kees Cook