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Date: Tue, 3 Feb 2009 00:49:23 +0100
From: Ingo Molnar <mingo@elte.hu>
To: Linus Torvalds <torvalds@linux-foundation.org>
Cc: "Rafael J. Wysocki" <rjw@sisk.pl>,
       Benjamin Herrenschmidt <benh@kernel.crashing.org>,
       Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
       Jesse Barnes <jesse.barnes@intel.com>, Andreas Schwab <schwab@suse.de>,
       Len Brown <lenb@kernel.org>
Subject: Re: PCI PM: Restore standard config registers of all devices early
Message-ID: <20090202234923.GA7499@elte.hu>
References: <200901261904.n0QJ4Q9c016709@hera.kernel.org> <alpine.LFD.2.00.0902021241430.3247@localhost.localdomain> <alpine.LFD.2.00.0902021251130.3247@localhost.localdomain> <200902022239.02453.rjw@sisk.pl> <alpine.LFD.2.00.0902021343280.3247@localhost.localdomain>
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* Linus Torvalds <torvalds@linux-foundation.org> wrote:

> Ingo: how do we walk over all the interrupt descriptors in todays world? 
> The whole sparse-vs-nonsparse makes things a bit more complex.

this:

        struct irq_desc *desc;
        int irq;

        for_each_irq_desc(i, desc) {
	...
	}

should do the trick.

	Ingo