linux-kernel - Re: [PATCH 0/9] Remove 'irq' argument from all irq handlers

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Message-ID: <20071019190721.GA1514@elte.hu>
Date:	Fri, 19 Oct 2007 21:07:22 +0200
From:	Ingo Molnar <mingo@...e.hu>
To:	"Eric W. Biederman" <ebiederm@...ssion.com>
Cc:	Thomas Gleixner <tglx@...utronix.de>,
	Jeff Garzik <jeff@...zik.org>,
	LKML <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH 0/9] Remove 'irq' argument from all irq handlers


* Eric W. Biederman <ebiederm@...ssion.com> wrote:

> > thanks for doing this.
> 
> Yes.  keeping this alive is good.
> 
> The practical question is how do we make this change without breaking 
> the drivers that use their irq argument.

the get_irq_regs() approach worked out really well. We should do a 
get_irq_nr() and be done with it?

(Then once the mechanic conversion has been done we could eliminate all 
uses of get_irq_nr() and remove the small overhead it takes to maintain 
this per-cpu value in the irq entry layer.)

full ACK on the concept from me too. Please go ahead! :)

	Ingo
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