linux-kernel - Re: [PATCH] fs/ntfs3: make ntfs3 compile with clang-12

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Message-ID: <CAKwvOd=Z1ia4ZufDbRsEUkumwkz15TtSb2V1aBT7SN8w86RKYw@mail.gmail.com>
Date:   Wed, 19 May 2021 16:06:33 -0700
From:   Nick Desaulniers <ndesaulniers@...gle.com>
To:     torvic9@...lbox.org
Cc:     "linux-fsdevel@...r.kernel.org" <linux-fsdevel@...r.kernel.org>,
        "almaz.alexandrovich@...agon-software.com" 
        <almaz.alexandrovich@...agon-software.com>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        clang-built-linux <clang-built-linux@...glegroups.com>
Subject: Re: [PATCH] fs/ntfs3: make ntfs3 compile with clang-12

On Wed, May 19, 2021 at 6:43 AM <torvic9@...lbox.org> wrote:
>
> Some of the ccflags in the fs/ntfs3 Makefile are for gcc only.
> Replace them with clang alternatives if necessary.
>
> Signed-off-by: Tor Vic <torvic9@...lbox.org>

Thanks for the patch. +clang-built-linux; please make sure to cc the
lists from ./scripts/get_maintainer.pl <patch file>.  It should
recommend our mailing list of the words clang or llvm appear anywhere
in the patch file. This helps spread around the review burden.

> ---
>  fs/ntfs3/Makefile | 4 +++-
>  1 file changed, 3 insertions(+), 1 deletions(-)
>
> diff --git a/fs/ntfs3/Makefile b/fs/ntfs3/Makefile
> index b06a06cc0..dae144033 100644
> --- a/fs/ntfs3/Makefile
> +++ b/fs/ntfs3/Makefile
> @@ -4,7 +4,9 @@
>  #
>
>  # to check robot warnings
> -ccflags-y += -Wunused-but-set-variable -Wold-style-declaration -Wint-to-pointer-cast
> +ccflags-y += -Wint-to-pointer-cast \
> +       $(call cc-option,-Wunused-but-set-variable,-Wunused-const-variable) \
> +       $(call cc-option,-Wold-style-declaration,-Wout-of-line-declaration)

I think it would be better to leave off the second parameter of both
of these, which is the fallback.

>
>  obj-$(CONFIG_NTFS3_FS) += ntfs3.o
>
> --
> 2.31.1

-- 
Thanks,
~Nick Desaulniers