linux-kernel - Re: [PATCH] kbuild: Run syncconfig with -s

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Message-ID: <CAK7LNATs3qEjTE-=FWP9Srf3Ys30T7h+PL6MLgHoBPxJLSx4VA@mail.gmail.com>
Date:   Fri, 21 Aug 2020 11:48:07 +0900
From:   Masahiro Yamada <masahiroy@...nel.org>
To:     Ingo Molnar <mingo@...nel.org>
Cc:     Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        Michal Marek <michal.lkml@...kovi.net>
Subject: Re: [PATCH] kbuild: Run syncconfig with -s

On Thu, Aug 20, 2020 at 3:35 PM Ingo Molnar <mingo@...nel.org> wrote:
>
> On every kernel build that runs --syncconfig, there's an output of the following line:
>
>   scripts/kconfig/conf  --syncconfig Kconfig
>
> This is the only non-platform build message the kbuild system emits that isn't
> prefixed by at least a space, or is a build warning.
>
> Run it under -s - if there's any problem it will emit messages anyway.
>
> With this change the following simple grep filter will show all build warnings
> and errors of a kernel build:
>
>    make | grep -v '^ '



I do want to see something when syncconfig is invoked.

I will apply this instead:
https://patchwork.kernel.org/patch/11727445/




> Signed-off-by: Ingo Molnar <mingo@...nel.org>
> ---
>  Makefile | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/Makefile b/Makefile
> index 9cac6fde3479..2057c92a6205 100644
> --- a/Makefile
> +++ b/Makefile
> @@ -709,7 +709,7 @@ $(KCONFIG_CONFIG):
>  # The syncconfig should be executed only once to make all the targets.
>  # (Note: use the grouped target '&:' when we bump to GNU Make 4.3)
>  %/config/auto.conf %/config/auto.conf.cmd %/generated/autoconf.h: $(KCONFIG_CONFIG)
> -       $(Q)$(MAKE) -f $(srctree)/Makefile syncconfig
> +       $(Q)$(MAKE) -sf $(srctree)/Makefile syncconfig
>  else # !may-sync-config
>  # External modules and some install targets need include/generated/autoconf.h
>  # and include/config/auto.conf but do not care if they are up-to-date.



-- 
Best Regards
Masahiro Yamada