linux-kernel - Re: [PATCH 2/3] Makefile: kselftest: use KCONFIG

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Message-ID: <CAK7LNATzyyga_jbd_9BbEqws9PE-19L3FSxxoPwbC7ieic0yQg@mail.gmail.com>
Date:   Tue, 12 Mar 2019 02:25:13 +0900
From:   Masahiro Yamada <yamada.masahiro@...ionext.com>
To:     Arseny Maslennikov <ar@...msu.ru>
Cc:     Michal Marek <michal.lkml@...kovi.net>,
        Jeff Dike <jdike@...toit.com>,
        Richard Weinberger <richard@....at>,
        Anton Ivanov <anton.ivanov@...bridgegreys.com>,
        Linux Kbuild mailing list <linux-kbuild@...r.kernel.org>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        linux-um@...ts.infradead.org
Subject: Re: [PATCH 2/3] Makefile: kselftest: use KCONFIG_CONFIG

On Tue, Mar 5, 2019 at 1:58 AM Arseny Maslennikov <ar@...msu.ru> wrote:
>
> If the config file is reassigned through the KCONFIG_CONFIG
> makeflag/envvar, this rule still attempts to use the wrong, possibly
> nonexistent file.
> Let's fix that.
>
> Signed-off-by: Arseny Maslennikov <ar@...msu.ru>
> ---
>  Makefile | 4 ++--
>  1 file changed, 2 insertions(+), 2 deletions(-)
>
> diff --git a/Makefile b/Makefile
> index d5713e7b1e50..4d8760166a47 100644
> --- a/Makefile
> +++ b/Makefile
> @@ -1199,9 +1199,9 @@ kselftest-clean:
>
>  PHONY += kselftest-merge
>  kselftest-merge:
> -       $(if $(wildcard $(objtree)/.config),, $(error No .config exists, config your kernel first!))
> +       $(if $(wildcard $(objtree)/$(KCONFIG_CONFIG)),, $(error No $(KCONFIG_CONFIG) exists, config your kernel first!))
>         $(Q)$(CONFIG_SHELL) $(srctree)/scripts/kconfig/merge_config.sh \
> -               -m $(objtree)/.config \
> +               -m $(objtree)/$(KCONFIG_CONFIG) \


You are blindly replacing .config with $(KCONFIG_CONFIG).


What kind of usage do you assume for KCONFIG_CONFIG ?

$(objtree)/$(KCONFIG_CONFIG) means
$(KCONFIG_CONFIG) never becomes an absolute path.








>                 $(srctree)/tools/testing/selftests/*/config
>         +$(Q)$(MAKE) -f $(srctree)/Makefile olddefconfig
>
> --
> 2.20.1
>


--
Best Regards
Masahiro Yamada