linux-kernel - Re: [PATCHv2 1/4] clockevents: Add generic timer broadcast receiver

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Message-ID: <alpine.LFD.2.02.1301151224300.7475@ionos>
Date:	Tue, 15 Jan 2013 12:24:53 +0100 (CET)
From:	Thomas Gleixner <tglx@...utronix.de>
To:	Mark Rutland <mark.rutland@....com>
cc:	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	"linux-arm-kernel@...ts.infradead.org" 
	<linux-arm-kernel@...ts.infradead.org>,
	"nico@...aro.org" <nico@...aro.org>,
	Will Deacon <Will.Deacon@....com>,
	Marc Zyngier <Marc.Zyngier@....com>,
	"john.stultz@...aro.org" <john.stultz@...aro.org>
Subject: Re: [PATCHv2 1/4] clockevents: Add generic timer broadcast
 receiver

On Mon, 14 Jan 2013, Mark Rutland wrote:
> On Mon, Jan 14, 2013 at 02:17:26PM +0000, Thomas Gleixner wrote:
> > > I thought this previously also [1], but I couldn't find any path such that a
> > > tick_cpu_device would have an evtdev without an event_handler. We always set the
> > > handler before setting evtdev, and alway wipe evtdev before wiping the handler.
> > > 
> > > Have I missed something?
> > 
> > That's an x86 specific issue. Though we could try and make that
> > functionality completely generic.
> 
> Just to check: is the evt->event_handler check necessary?

For x86 yes. See the comment.

Thanks,

	tglx
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