linux-kernel - Re: [ 57/72] genirq: Unmask oneshot irqs when thread was not woken

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Date:	Tue, 6 Mar 2012 10:52:19 +0100 (CET)
From:	Thomas Gleixner <tglx@...utronix.de>
To:	Linus Torvalds <torvalds@...ux-foundation.org>
cc:	Stefan Lippers-Hollmann <s.L-H@....de>,
	Sven Joachim <svenjoac@....de>,
	Greg KH <gregkh@...uxfoundation.org>,
	LKML <linux-kernel@...r.kernel.org>, stable@...r.kernel.org,
	Andrew Morton <akpm@...ux-foundation.org>,
	Alan Cox <alan@...rguk.ukuu.org.uk>,
	Jonathan Nieder <jrnieder@...il.com>,
	linux-wireless@...r.kernel.org,
	Stefano Brivio <stefano.brivio@...imi.it>
Subject: Re: [ 57/72] genirq: Unmask oneshot irqs when thread was not woken

On Tue, 6 Mar 2012, Thomas Gleixner wrote:

> On Mon, 5 Mar 2012, Linus Torvalds wrote:
> 
> > Thomas, should we just plan on reverting that commit from mainline? It
> > clearly causes regressions.
> 
> Give me a day or two to figure out why it breaks stuff. I have no idea
> why it should wreckage anything.

Hmm. This is interesting. The b43 driver has a primary handler which
can return IRQ_NONE. So up to that change the interrupt line was kept
disabled when that happened. Possibly the driver relies on that
behaviour. Digging for a machine with a b43.

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