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From:   Marco Elver <elver@google.com>
Date:   Mon, 3 Aug 2020 08:50:15 +0200
Message-ID: <CANpmjNNH7Szgnbg+7Q_TGCma6z4OXcSELtvgvndx=6zvok=sAA@mail.gmail.com>
Subject: Re: [PATCH] doc: kcsan: add support info of gcc for kcsan
To:     Wang Wenhu <wenhu.wang@vivo.com>
Cc:     Dmitry Vyukov <dvyukov@google.com>,
        Jonathan Corbet <corbet@lwn.net>,
        kasan-dev <kasan-dev@googlegroups.com>,
        "open list:DOCUMENTATION" <linux-doc@vger.kernel.org>,
        LKML <linux-kernel@vger.kernel.org>,
        clang-built-linux <clang-built-linux@googlegroups.com>
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On Mon, 3 Aug 2020 at 08:45, Wang Wenhu <wenhu.wang@vivo.com> wrote:
>
> KCSAN is also supported in GCC version 7.3.0 or later.
> For Clang, the supported versions are 7.0.0 and later.
>
> Signed-off-by: Wang Wenhu <wenhu.wang@vivo.com>
> ---

Nack.

Did you mean K-A-SAN?

In which case this is the wrong file (kasan.rst also has the right
information FWIW).

>  Documentation/dev-tools/kcsan.rst | 3 ++-
>  1 file changed, 2 insertions(+), 1 deletion(-)
>
> diff --git a/Documentation/dev-tools/kcsan.rst b/Documentation/dev-tools/kcsan.rst
> index b38379f06194..05a4578839cf 100644
> --- a/Documentation/dev-tools/kcsan.rst
> +++ b/Documentation/dev-tools/kcsan.rst
> @@ -8,7 +8,8 @@ approach to detect races. KCSAN's primary purpose is to detect `data races`_.
>  Usage
>  -----
>
> -KCSAN requires Clang version 11 or later.
> +KCSAN is supported in both GCC and Clang. With GCC it requires version 7.3.0
> +or later. With Clang it requires version 7.0.0 or later.
>
>  To enable KCSAN configure the kernel with::
>
> --
> 2.17.1
>