linux-kernel - Re: [PATCH] treewide: drop CONFIG

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Date:   Thu, 17 Aug 2023 14:38:05 +1000
From:   Michael Ellerman <mpe@...erman.id.au>
To:     Randy Dunlap <rdunlap@...radead.org>, linux-kernel@...r.kernel.org
Cc:     Randy Dunlap <rdunlap@...radead.org>,
        Russell King <linux@...linux.org.uk>,
        linux-arm-kernel@...ts.infradead.org,
        Arnd Bergmann <arnd@...db.de>,
        "Jason A . Donenfeld" <Jason@...c4.com>, wireguard@...ts.zx2c4.com,
        linux-arch@...r.kernel.org, linux-snps-arc@...ts.infradead.org,
        Vineet Gupta <vgupta@...nel.org>,
        Brian Cain <bcain@...cinc.com>, linux-hexagon@...r.kernel.org,
        Greg Ungerer <gerg@...ux-m68k.org>,
        Geert Uytterhoeven <geert@...ux-m68k.org>,
        linux-m68k@...ts.linux-m68k.org, Michal Simek <monstr@...str.eu>,
        Thomas Bogendoerfer <tsbogend@...ha.franken.de>,
        Dinh Nguyen <dinguyen@...nel.org>,
        Jonas Bonn <jonas@...thpole.se>,
        Stefan Kristiansson <stefan.kristiansson@...nalahti.fi>,
        Stafford Horne <shorne@...il.com>,
        linux-openrisc@...r.kernel.org, linux-mips@...r.kernel.org,
        Nicholas Piggin <npiggin@...il.com>,
        Christophe Leroy <christophe.leroy@...roup.eu>,
        linuxppc-dev@...ts.ozlabs.org, linux-riscv@...ts.infradead.org,
        Paul Walmsley <paul.walmsley@...ive.com>,
        Palmer Dabbelt <palmer@...belt.com>,
        Albert Ou <aou@...s.berkeley.edu>,
        Yoshinori Sato <ysato@...rs.sourceforge.jp>,
        Rich Felker <dalias@...c.org>,
        John Paul Adrian Glaubitz <glaubitz@...sik.fu-berlin.de>,
        linux-sh@...r.kernel.org, Max Filippov <jcmvbkbc@...il.com>,
        Josh Triplett <josh@...htriplett.org>,
        Masahiro Yamada <masahiroy@...nel.org>,
        linux-kbuild@...r.kernel.org,
        Andrew Morton <akpm@...ux-foundation.org>
Subject: Re: [PATCH] treewide: drop CONFIG_EMBEDDED

Randy Dunlap <rdunlap@...radead.org> writes:
> There is only one Kconfig user of CONFIG_EMBEDDED and it can be
> switched to EXPERT or "if !ARCH_MULTIPLATFORM" (suggested by Arnd).
>
> Signed-off-by: Randy Dunlap <rdunlap@...radead.org>
...
>  arch/powerpc/configs/40x/klondike_defconfig          |    2 +-
>  arch/powerpc/configs/44x/fsp2_defconfig              |    2 +-
>  arch/powerpc/configs/52xx/tqm5200_defconfig          |    2 +-
>  arch/powerpc/configs/mgcoge_defconfig                |    2 +-
>  arch/powerpc/configs/microwatt_defconfig             |    2 +-
>  arch/powerpc/configs/ps3_defconfig                   |    2 +-
  
Acked-by: Michael Ellerman <mpe@...erman.id.au> (powerpc)

...

> diff -- a/init/Kconfig b/init/Kconfig
> --- a/init/Kconfig
> +++ b/init/Kconfig
> @@ -1790,14 +1790,6 @@ config DEBUG_RSEQ
>  
>  	  If unsure, say N.
>  
> -config EMBEDDED
> -	bool "Embedded system"
> -	select EXPERT

This is a crucial detail that could be mentioned in the change log. ie.
that all defconfigs that currently have EMBEDDED=y are currently
selecting EXPERT already.

cheers