Re: Hotplug borked after suspend/resume in Linux-3.3 ?

[Jeff Garzik <jgarzik@xxxxxxxxx>]

On 04/17/2012 09:46 PM, Mark Lord wrote:
> On 12-04-17 09:37 PM, Mark Lord wrote:
> > On 12-04-17 09:29 PM, Lin Ming wrote:
> > > I'm working on the hotplug issue fix.
> > >
> > > Before the fix is ready, here is the one-line patch.
> > > Could you give it a try?
> > ..
> > > --- a/drivers/ata/libata-transport.c
> > > +++ b/drivers/ata/libata-transport.c
> > > @@ -294,6 +294,7 @@ int ata_tport_add(struct device *parent,
> > >   	device_enable_async_suspend(dev);
> > >   	pm_runtime_set_active(dev);
> > >   	pm_runtime_enable(dev);
> > > +	pm_runtime_forbid(dev);
> > ..
> >
> > I'm rebuilding the kernel right now.. should take about 5min or less to test.
>
> Yeah, that (by itself) is enough to make things work again.
> This looks like the one-liner that we really need upstream and in -stable.
>
> Jeff?
>
> I'll now use it instead of the (much larger) "v2 disable runtime pm" thing.

Yeah I like that a -whole- lot better...

Will push upstream tomorrow.



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