Re: [PATCH v3 01/38] Kconfig: introduce HAS_IOPORT option and select it as necessary

From: Geert Uytterhoeven <geert@linux-m68k.org>
To: Niklas Schnelle <schnelle@linux.ibm.com>
Cc: "Arnd Bergmann" <arnd@arndb.de>,
	"Richard Henderson" <richard.henderson@linaro.org>,
	"Ivan Kokshaysky" <ink@jurassic.park.msu.ru>,
	"Matt Turner" <mattst88@gmail.com>,
	"Russell King" <linux@armlinux.org.uk>,
	"Catalin Marinas" <catalin.marinas@arm.com>,
	"Will Deacon" <will@kernel.org>,
	"Michal Simek" <monstr@monstr.eu>,
	"Thomas Bogendoerfer" <tsbogend@alpha.franken.de>,
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	"Helge Deller" <deller@gmx.de>,
	"Michael Ellerman" <mpe@ellerman.id.au>,
	"Nicholas Piggin" <npiggin@gmail.com>,
	"Christophe Leroy" <christophe.leroy@csgroup.eu>,
	"Paul Walmsley" <paul.walmsley@sifive.com>,
	"Palmer Dabbelt" <palmer@dabbelt.com>,
	"Albert Ou" <aou@eecs.berkeley.edu>,
	"Yoshinori Sato" <ysato@users.sourceforge.jp>,
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Subject: Re: [PATCH v3 01/38] Kconfig: introduce HAS_IOPORT option and select it as necessary
Date: Tue, 14 Mar 2023 13:48:22 +0100	[thread overview]
Message-ID: <CAMuHMdV9ZoB5XNiiVEG-zBzB9eN5RJSC42WMDD-RZfcg=2tr4g@mail.gmail.com> (raw)
In-Reply-To: <20230314121216.413434-2-schnelle@linux.ibm.com>

On Tue, Mar 14, 2023 at 1:13 PM Niklas Schnelle <schnelle@linux.ibm.com> wrote:
> We introduce a new HAS_IOPORT Kconfig option to indicate support for I/O
> Port access. In a future patch HAS_IOPORT=n will disable compilation of
> the I/O accessor functions inb()/outb() and friends on architectures
> which can not meaningfully support legacy I/O spaces such as s390. Also
> add dependencies on HAS_IOPORT for the ISA and HAVE_EISA config options
> as these busses always go along with HAS_IOPORT.
>
> The "depends on" relations on HAS_IOPORT in drivers as well as ifdefs
> for HAS_IOPORT specific sections will be added in subsequent patches on
> a per subsystem basis.
>
> Co-developed-by: Arnd Bergmann <arnd@kernel.org>
> Signed-off-by: Niklas Schnelle <schnelle@linux.ibm.com>

>  arch/m68k/Kconfig       | 1 +

Acked-by: Geert Uytterhoeven <geert@linux-m68k.org>

Gr{oetje,eeting}s,

                        Geert

-- 
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@linux-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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