linux-kernel - Re: [PATCH] Revert "ubsan, kcsan: Don't combine sanitizer with kcov on clang"

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Date:   Fri, 28 Jan 2022 09:58:17 -0800
From:   Kees Cook <keescook@...omium.org>
To:     Marco Elver <elver@...gle.com>
Cc:     Andrew Morton <akpm@...ux-foundation.org>,
        Alexander Potapenko <glider@...gle.com>,
        Dmitry Vyukov <dvyukov@...gle.com>,
        Nathan Chancellor <nathan@...nel.org>,
        Nick Desaulniers <ndesaulniers@...gle.com>,
        kasan-dev@...glegroups.com, linux-kernel@...r.kernel.org,
        llvm@...ts.linux.dev, linux-mm@...ck.org,
        Arnd Bergmann <arnd@...db.de>, linux-kbuild@...r.kernel.org
Subject: Re: [PATCH] Revert "ubsan, kcsan: Don't combine sanitizer with kcov
 on clang"

On Fri, Jan 28, 2022 at 11:56:31AM +0100, Marco Elver wrote:
> This reverts commit ea91a1d45d19469001a4955583187b0d75915759.
> 
> Since df05c0e9496c ("Documentation: Raise the minimum supported version
> of LLVM to 11.0.0") the minimum Clang version is now 11.0, which fixed
> the UBSAN/KCSAN vs. KCOV incompatibilities.
> 
> Link: https://bugs.llvm.org/show_bug.cgi?id=45831
> Link: https://lkml.kernel.org/r/YaodyZzu0MTCJcvO@elver.google.com
> Signed-off-by: Marco Elver <elver@...gle.com>

Yup, good to get rid of it.

Reviewed-by: Kees Cook <keescook@...omium.org>

-- 
Kees Cook