linux-kernel - Re: [PATCH 17/25] wm97xx: don't use [delayed_]work

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Message-ID: <20121224182549.GA11817@htj.dyndns.org>
Date:	Mon, 24 Dec 2012 10:25:49 -0800
From:	Tejun Heo <tj@...nel.org>
To:	Dmitry Torokhov <dmitry.torokhov@...il.com>
Cc:	linux-kernel@...r.kernel.org,
	Mark Brown <broonie@...nsource.wolfsonmicro.com>,
	Liam Girdwood <lrg@...mlogic.co.uk>,
	linux-input@...r.kernel.org
Subject: Re: [PATCH 17/25] wm97xx: don't use [delayed_]work_pending()

Hello, Dmitry.

On Sun, Dec 23, 2012 at 01:54:50AM -0800, Dmitry Torokhov wrote:
> This is not 100% equivalent transformation as now we schedule first and
> disable IRQ later... Anyway, I think the driver shoudl be converted to
> threaded IRQ instead. Mark, does the patch below make any sense to you?

Yeah, I think the conversion is actually broken.  There isn't anything
which prevents work item execution racing against irq disabling.  I
agree the right thing to do is using threaded irq handler.

Thanks!

-- 
tejun
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