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Date:   Thu, 2 Nov 2017 10:18:08 +0100
From:   Geert Uytterhoeven <geert@...ux-m68k.org>
To:     Masahiro Yamada <yamada.masahiro@...ionext.com>
Cc:     Linux-sh list <linux-sh@...r.kernel.org>,
        linux-kbuild <linux-kbuild@...r.kernel.org>,
        Yoshinori Sato <ysato@...rs.sourceforge.jp>,
        Rich Felker <dalias@...c.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] sh: remove pointless select of KBUILD_DEFCONFIG

Hi Yamada-san,

On Wed, Oct 4, 2017 at 11:33 AM, Masahiro Yamada
<yamada.masahiro@...ionext.com> wrote:
> KBUILD_DEFCONFIG := shx3_defconfig
>
> is never used in a sensible way.  KBUILD_DEFCONFIG specifies the
> defconfig file used by "make defconfig", but CONFIG_SUPERH32 is
> never set when building config targets.
>
> Signed-off-by: Masahiro Yamada <yamada.masahiro@...ionext.com>
> ---
>
>  arch/sh/Makefile | 3 +--
>  1 file changed, 1 insertion(+), 2 deletions(-)
>
> diff --git a/arch/sh/Makefile b/arch/sh/Makefile
> index 280bbff..c937ec0 100644
> --- a/arch/sh/Makefile
> +++ b/arch/sh/Makefile
> @@ -96,6 +96,7 @@ defaultimage-$(CONFIG_SH_7619_SOLUTION_ENGINE)        := vmlinux
>  # Set some sensible Kbuild defaults
>  boot := arch/sh/boot
>  KBUILD_IMAGE           := $(boot)/$(defaultimage-y)
> +KBUILD_DEFCONFIG       := cayman_defconfig

cayman_defconfig is a 64-bit defconfig?
As the big chunk of SH platforms are 32-bit (are there any 64-bit out in
the wild?), does it make sense to make a 64-bit defconfig the default?

>  #
>  # Choosing incompatible machines durings configuration will result in
> @@ -105,14 +106,12 @@ ifdef CONFIG_SUPERH32
>  UTS_MACHINE            := sh
>  BITS                   := 32
>  LDFLAGS_vmlinux                += -e _stext
> -KBUILD_DEFCONFIG       := shx3_defconfig
>  else
>  UTS_MACHINE            := sh64
>  BITS                   := 64
>  LDFLAGS_vmlinux                += --defsym phys_stext=_stext-$(CONFIG_PAGE_OFFSET) \
>                            --defsym phys_stext_shmedia=phys_stext+1 \
>                            -e phys_stext_shmedia
> -KBUILD_DEFCONFIG       := cayman_defconfig
>  endif
>
>  ifdef CONFIG_CPU_LITTLE_ENDIAN

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

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