linux-kernel - Re: [PATCH] kbuild: Enable -Wuninitialized

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Date:   Fri, 21 Jun 2019 00:45:29 +0900
From:   Masahiro Yamada <yamada.masahiro@...ionext.com>
To:     Nathan Chancellor <natechancellor@...il.com>
Cc:     Michal Marek <michal.lkml@...kovi.net>,
        Linux Kbuild mailing list <linux-kbuild@...r.kernel.org>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        Nick Desaulniers <ndesaulniers@...gle.com>,
        Arnd Bergmann <arnd@...db.de>,
        clang-built-linux <clang-built-linux@...glegroups.com>
Subject: Re: [PATCH] kbuild: Enable -Wuninitialized

On Sat, Jun 15, 2019 at 1:53 AM Nathan Chancellor
<natechancellor@...il.com> wrote:
>
> This helps fine very dodgy behavior through both -Wuninitialized
> (warning that a variable is always uninitialized) and
> -Wsometimes-uninitialized (warning that a variable is sometimes
> uninitialized, like GCC's -Wmaybe-uninitialized). These warnings
> catch things that GCC doesn't such as:
>
> https://lore.kernel.org/lkml/86649ee4-9794-77a3-502c-f4cd10019c36@lca.pw/
>
> We very much want to catch these so turn this warning on so that CI is
> aware of it.
>
> Link: https://github.com/ClangBuiltLinux/linux/issues/381
> Signed-off-by: Nathan Chancellor <natechancellor@...il.com>
> ---

Applied to linux-kbuild.
Thanks!


-- 
Best Regards
Masahiro Yamada