linux-kernel - Re: [patch 1/4] AVR32: cleanup - use _AC macro to define PAGE

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Date:	Sun, 3 Feb 2008 17:04:19 +0300
From:	Cyrill Gorcunov <gorcunov@...il.com>
To:	Haavard Skinnemoen <hskinnemoen@...el.com>
Cc:	linux-kernel@...r.kernel.org, davem@...emloft.net,
	bryan.wu@...log.com, dhowells@...hat.com
Subject: Re: [patch 1/4] AVR32: cleanup - use _AC macro to define PAGE_SIZE

[Haavard Skinnemoen - Sun, Feb 03, 2008 at 02:25:06PM +0100]
| [removed bogus @atmel.co address from Cc]
| 
| On Sun, 03 Feb 2008 14:22:18 +0300
| Cyrill Gorcunov <gorcunov@...il.com> wrote:
| 
| > Signed-off-by: Cyrill Gorcunov <gorcunov@...il.com>
| 
| Applied, thanks.
| 
| I found myself having to grep through include/linux to figure out what
| this _AC macro was really all about, so I added this to the description:
| 
|     PAGE_SIZE is used both from assembly and C code. We want to have type
|     specifiers when using it from C, but this will make the assembler
|     confused, so we need to make it conditional.
|     
|     This is exactly what the _AC macro is for, so using it allows us to
|     get rid of a few lines of cpp noise.
| 
| My first thought was "Autoconf", and it sent shivers down my spine ;-)
| 
| Haavard
| 

Thanks, Haavard. (btw, really good joke about Autoconf ;-)

		- Cyrill -
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