linux-kernel - Re: [PATCH for -tip] proc: remove ifdef CONFIG_SPARSE

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Date:	Thu, 25 Dec 2008 20:00:43 +0900 (JST)
From:	KOSAKI Motohiro <kosaki.motohiro@...fujitsu.com>
To:	Ingo Molnar <mingo@...e.hu>
Cc:	kosaki.motohiro@...fujitsu.com, Yinghai Lu <yinghai@...nel.org>,
	LKML <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH for -tip] proc: remove ifdef CONFIG_SPARSE_IRQ from stat.c

> 
> * KOSAKI Motohiro <kosaki.motohiro@...fujitsu.com> wrote:
> 
> > 
> > I confirmed by alpha cross compiler.
> > 
> > ==
> > Subject: [PATCH] proc: remove ifdef CONFIG_SPARSE_IRQ from stat.c
> > Impact: cleanup
> > 
> > commit 240d367b4e6c6e3c5075e034db14dba60a6f5fa7 has a bit strange analysis.
> > The fact is, irq_desc() can be used old architecuture too. 
> > but old code don't include <linux/irq.h>.
> > 
> > right fixing is here.
> 
> > +#include <linux/irq.h>
> 
> looks good, but linux/irq.h cannot be included on all architectures. (for 
> example s390 has no notion of 'hardirqs'). But we created linux/irqnr.h 
> for this purpose - so including that should work better.

Oh, thanks good explain.
I'll fix soon.



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