linux-kernel - Re: [PATCH] kbuild: reword help of LD_DEAD_CODE_DATA

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Date:   Thu, 28 Jun 2018 01:41:44 +0900
From:   Masahiro Yamada <yamada.masahiro@...ionext.com>
To:     Linux Kbuild mailing list <linux-kbuild@...r.kernel.org>
Cc:     Nicholas Piggin <npiggin@...il.com>,
        Masahiro Yamada <yamada.masahiro@...ionext.com>,
        Randy Dunlap <rdunlap@...radead.org>,
        Dominik Brodowski <linux@...inikbrodowski.net>,
        Kees Cook <keescook@...omium.org>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        Thomas Gleixner <tglx@...utronix.de>,
        Frederic Weisbecker <frederic@...nel.org>,
        "Peter Zijlstra (Intel)" <peterz@...radead.org>,
        Ingo Molnar <mingo@...nel.org>,
        Mathieu Desnoyers <mathieu.desnoyers@...icios.com>
Subject: Re: [PATCH] kbuild: reword help of LD_DEAD_CODE_DATA_ELIMINATION

2018-06-24 1:41 GMT+09:00 Masahiro Yamada <yamada.masahiro@...ionext.com>:
> Since commit 5d20ee3192a5 ("kbuild: Allow LD_DEAD_CODE_DATA_ELIMINATION
> to be selectable if enabled"), HAVE_LD_DEAD_CODE_DATA_ELIMINATION is
> supposed to be selected by architectures that are capable of this
> functionality.  LD_DEAD_CODE_DATA_ELIMINATION is now users' selection.
> Update the help message.
>
> Signed-off-by: Masahiro Yamada <yamada.masahiro@...ionext.com>
> ---
>

Applied to linux-kbuild/fixes.

>  init/Kconfig | 7 +++----
>  1 file changed, 3 insertions(+), 4 deletions(-)
>
> diff --git a/init/Kconfig b/init/Kconfig
> index fde3d09..041f3a0 100644
> --- a/init/Kconfig
> +++ b/init/Kconfig
> @@ -1051,10 +1051,9 @@ config LD_DEAD_CODE_DATA_ELIMINATION
>         depends on HAVE_LD_DEAD_CODE_DATA_ELIMINATION
>         depends on EXPERT
>         help
> -         Select this if the architecture wants to do dead code and
> -         data elimination with the linker by compiling with
> -         -ffunction-sections -fdata-sections, and linking with
> -         --gc-sections.
> +         Enable this if you want to do dead code and data elimination with
> +         the linker by compiling with -ffunction-sections -fdata-sections,
> +         and linking with --gc-sections.
>
>           This can reduce on disk and in-memory size of the kernel
>           code and static data, particularly for small configs and
> --
> 2.7.4
>
> --
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-- 
Best Regards
Masahiro Yamada