linux-kernel - Re: [PATCH 10/18] m68k: io: implement dummy relaxed accessor macros for writes

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Message-ID: <CAMuHMdV15kdRincp9EbVhEUDSp4GzP86BLRFV8X_Zbhq+hwX0g@mail.gmail.com>
Date:	Thu, 17 Apr 2014 18:07:28 +0200
From:	Geert Uytterhoeven <geert@...ux-m68k.org>
To:	Will Deacon <will.deacon@....com>
Cc:	Linux-Arch <linux-arch@...r.kernel.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	Arnd Bergmann <arnd@...db.de>, Michal Simek <monstr@...str.eu>,
	David Howells <dhowells@...hat.com>,
	Mark Brown <broonie@...aro.org>,
	Benjamin Herrenschmidt <benh@...nel.crashing.org>,
	Peter Zijlstra <peterz@...radead.org>,
	Paul McKenney <paulmck@...ux.vnet.ibm.com>
Subject: Re: [PATCH 10/18] m68k: io: implement dummy relaxed accessor macros
 for writes

On Thu, Apr 17, 2014 at 3:44 PM, Will Deacon <will.deacon@....com> wrote:
> write{b,w,l}_relaxed are implemented by some architectures in order to
> permit memory-mapped I/O accesses with weaker barrier semantics than the
> non-relaxed variants.
>
> This patch adds dummy macros for the write accessors to m68k, in the
> same vein as the dummy definitions for the relaxed read accessors.
> Additionally, the existing relaxed read accessors are moved into
> asm/io.h, so that they can be used by m68k targets with an MMU.
>
> Cc: Geert Uytterhoeven <geert@...ux-m68k.org>
> Signed-off-by: Will Deacon <will.deacon@....com>

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

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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