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Message-ID: <20090209222910.GA9768@x200.localdomain>
Date:	Tue, 10 Feb 2009 01:29:10 +0300
From:	Alexey Dobriyan <adobriyan@...il.com>
To:	Mike Travis <travis@....com>
Cc:	linux-kernel@...r.kernel.org,
	Andrew Morton <akpm@...ux-foundation.org>
Subject: Re: include/linux/irq.h:452: error: implicit declaration of
	function 'cpu_to_node'

On Mon, Feb 09, 2009 at 02:08:42PM -0800, Mike Travis wrote:
> Mike Travis wrote:
> > Alexey Dobriyan wrote:
> >> On Wed, Jan 21, 2009 at 03:38:25PM -0800, Mike Travis wrote:
> >>> Alexey Dobriyan wrote:
> >>>> On mips-malta:
> >>>>
> >>>>   CC      arch/mips/mti-malta/malta-int.o
> >>>> In file included from arch/mips/mti-malta/malta-int.c:25:
> >>>> include/linux/irq.h: In function 'init_alloc_desc_masks':
> >>>> include/linux/irq.h:452: error: implicit declaration of function 'cpu_to_node'
> >>>> include/linux/irq.h:454: error: 'GFP_ATOMIC' undeclared (first use in this function)
> >>>>
> >>>> I _think_ init_alloc_desc_masks() should be made out of line to fix this.
> >>> Hi Alexey,
> >>>
> >>> Does adding #include <linux/slab.h> fix the error?  If so, I can add this to
> >>> linux/irq.h.
> >>>
> >>> The primary reason it's inline is that unless CONFIG_CPUMASK_OFFSTACK=y, then the
> >>> entire routine is a NOP which optimizes out more completely as an inline function.
> >> linux/slab.h helps.
> > 
> > Hi Alexey,
> > 
> > Since you reported this problem a similar issue was discovered on s390.  However
> > the fix for that was to include interrupt.h instead of irq.h.
> > 
> > Could you try this as well?
> > 
> > Here's a tail end pointer to the thread and Andrew's commit msg including the
> > patch is below.
> > 
> > http://marc.info/?l=linux-mm-commits&m=123360349631362&w=4
> 
> Sorry, I should have made a patch specific to mips, and here that is...

Removal helps independently. ;-)

Oh and please fold all of this into relevant commit.

> --- linux-2.6-linus.orig/arch/mips/mti-malta/malta-int.c
> +++ linux-2.6-linus/arch/mips/mti-malta/malta-int.c
> @@ -22,7 +22,7 @@
>   * with two internal 82C95 interrupt controllers.
>   */
>  #include <linux/init.h>
> -#include <linux/irq.h>
> +#include <linux/interrupt.h>		<====
>  #include <linux/sched.h>
>  #include <linux/slab.h>
>  #include <linux/interrupt.h>		<====

P.S.: irq related headers suck.
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