linux-kernel - Re: [PATCH 06/28] nios2: Memory management

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Date:	Wed, 23 Apr 2014 09:24:49 +0200
From:	Geert Uytterhoeven <geert@...ux-m68k.org>
To:	Sam Ravnborg <sam@...nborg.org>
Cc:	Ezequiel Garcia <ezequiel.garcia@...e-electrons.com>,
	Tobias Klauser <tklauser@...tanz.ch>,
	Ley Foon Tan <lftan@...era.com>,
	Linux-Arch <linux-arch@...r.kernel.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	"linux-doc@...r.kernel.org" <linux-doc@...r.kernel.org>,
	LeyFoon Tan <lftan.linux@...il.com>, cltang@...esourcery.com
Subject: Re: [PATCH 06/28] nios2: Memory management

Hi Sam,

On Tue, Apr 22, 2014 at 6:24 PM, Sam Ravnborg <sam@...nborg.org> wrote:
> #define PAGE_SIZE    (_AC(1, UL) << PAGE_SHIFT)
> #define PAGE_MASK    (~(PAGE_SIZE-1))
>
> _AC(1, UL) expands to 1 for assembler and 1UL for C code.

Ideally, PAGE_SIZE should be size_t, not unsigned long, avoiding issues
like https://lkml.org/lkml/2014/4/13/78. But currently it's unsigned long
everywhere, so nios2 should be consistent.

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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