Re: [PATCH] CFI: Move function_nocfi() into compiler.h

From: Kees Cook
Date: Wed Jun 02 2021 - 14:53:38 EST


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