linux-kernel - Re: [PATCH v2 1/8] bootconfig: Set CONFIG_BOOT

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Date:   Thu, 27 Feb 2020 10:22:00 +0100
From:   Geert Uytterhoeven <geert@...ux-m68k.org>
To:     Masami Hiramatsu <mhiramat@...nel.org>
Cc:     Steven Rostedt <rostedt@...dmis.org>,
        Borislav Petkov <bp@...en8.de>,
        LKML <linux-kernel@...r.kernel.org>,
        Ingo Molnar <mingo@...nel.org>,
        Andrew Morton <akpm@...ux-foundation.org>,
        Peter Zijlstra <peterz@...radead.org>
Subject: Re: [PATCH v2 1/8] bootconfig: Set CONFIG_BOOT_CONFIG=n by default

Hi Hiramatsu-san,

On Thu, Feb 20, 2020 at 1:18 PM Masami Hiramatsu <mhiramat@...nel.org> wrote:
> Set CONFIG_BOOT_CONFIG=n by default. This also warns
> user if CONFIG_BOOT_CONFIG=n but "bootconfig" is given
> in the kernel command line.
>
> Suggested-by: Steven Rostedt <rostedt@...dmis.org>
> Signed-off-by: Masami Hiramatsu <mhiramat@...nel.org>

Thanks for your patch!

> --- a/init/main.c
> +++ b/init/main.c
> @@ -418,6 +418,14 @@ static void __init setup_boot_config(const char *cmdline)
>  }
>  #else
>  #define setup_boot_config(cmdline)     do { } while (0)
> +
> +static int __init warn_bootconfig(char *str)
> +{
> +       pr_warn("WARNING: 'bootconfig' found on the kernel command line but CONFIG_BOOTCONFIG is not set.\n");
> +       return 0;
> +}
> +early_param("bootconfig", warn_bootconfig);

Yeah, let's increases kernel size for the people who don't want to jump
on the bootconfig wagon :-(

Is this really needed?

Gr{oetje,eeting}s,

                        Geert

-- 
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@...ux-m68k.org

In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
                                -- Linus Torvalds