From mboxrd@z Thu Jan  1 00:00:00 1970
From: tglx@linutronix.de (Thomas Gleixner)
Date: Fri, 4 May 2012 18:01:22 +0200 (CEST)
Subject: [PATCH 2/3] IRQ: allow check_wakeup_irqs to notice level-triggered
 interrupts.
In-Reply-To: <20120504151221.6998d4e5@notabene.brown>
References: <20120425025637.7832.14013.stgit@notabene.brown>
 <20120425030524.7832.85239.stgit@notabene.brown>
 <alpine.LFD.2.02.1204251018530.2542@ionos>
 <20120425193916.0db1b4b1@notabene.brown>
 <alpine.LFD.2.02.1204251402360.2542@ionos>
 <20120504151221.6998d4e5@notabene.brown>
Message-ID: <alpine.LFD.2.02.1205041759540.6271@ionos>
To: linux-arm-kernel@lists.infradead.org
List-Id: linux-arm-kernel.lists.infradead.org

Neil,

On Fri, 4 May 2012, NeilBrown wrote:

> On Wed, 25 Apr 2012 14:54:54 +0200 (CEST) Thomas Gleixner
> <tglx@linutronix.de> wrote:
> 
> > Why not simply managing the pending bit for level irqs ?
> > 
> 
> Hi Thomas,
>  thanks again for the patch.  I finally made time to test it and it works as
> expected.  I've included it below with a change-log entry and tested-by:
> in case that helps.

thanks for testing. The changelog is great. You know how to make the
live of lazy buggers easier :)
  
>  	for_each_irq_desc(irq, desc) {
> -		if (irqd_is_wakeup_set(&desc->irq_data)) {
> +		if (desc->depth == 1 &&
> +		    irqd_is_wakeup_set(&desc->irq_data)) {
>  			if (desc->istate & IRQS_PENDING)
>  				return -EBUSY;
>  			continue;

I split that part into a separate patch, as it's really a different
issue.

Thanks,

	tglx