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

From: Mark Rutland
Date: Tue Jan 15 2013 - 07:00:09 EST


On Tue, Jan 15, 2013 at 11:24:53AM +0000, Thomas Gleixner wrote:
> 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.

Ah, sorry. I misunderstood on my initial reading.

I've posted a version with the evt->event_handler check restored, and the
tick_receive_broadcast stub removed when !CONFIG_GENERIC_CLOCKEVENTS_BROADCAST:

https://lkml.org/lkml/2013/1/14/276

The generic clockevents patches (based on v3.8-rc3) can also be found at
git://linux-arm.org/linux-mr.git tags/timer-broadcast-v3-core

> Thanks,
>
> tglx
>

Thanks,
Mark.

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