linux-kernel - Re: [PATCHv2] kconfig: add some Kconfig env variables to make help

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Date: Thu, 22 Feb 2024 13:57:42 +0900
From: Masahiro Yamada <masahiroy@...nel.org>
To: Sergey Senozhatsky <senozhatsky@...omium.org>
Cc: linux-kbuild@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCHv2] kconfig: add some Kconfig env variables to make help

On Thu, Feb 22, 2024 at 12:26 PM Sergey Senozhatsky
<senozhatsky@...omium.org> wrote:
>
> Add a new section "Configuration environment variables" to
> `make help` output in order to make it easier for people to
> discover KCONFIG_WERROR, etc.
>
> Signed-off-by: Sergey Senozhatsky <senozhatsky@...omium.org>
> ---
>  scripts/kconfig/Makefile | 4 ++++
>  1 file changed, 4 insertions(+)
>
> diff --git a/scripts/kconfig/Makefile b/scripts/kconfig/Makefile
> index ea1bf3b3dbde..0044d49e149c 100644
> --- a/scripts/kconfig/Makefile
> +++ b/scripts/kconfig/Makefile
> @@ -158,6 +158,10 @@ help:
>                 if help=$$(grep -m1 '^# Help: ' $(f)); then \
>                         printf '  %-25s - %s\n' '$(notdir $(f))' "$${help#*: }"; \
>                 fi;)
> +       @echo  ''
> +       @echo  'Configuration environment variables:'
> +       @echo  '  KCONFIG_WERROR                 - Turn some Kconfig warnings into error conditions'
> +       @echo  '  KCONFIG_WARN_UNKNOWN_SYMBOLS   - Make Kconfig warn about all unrecognized config symbols'
>
>  # ===========================================================================
>  # object files used by all kconfig flavours
> --
> 2.44.0.rc0.258.g7320e95886-goog
>
>


Why only two, while Kconfig supports more env variables?




-- 
Best Regards
Masahiro Yamada