Re: [PATCH 03/15] powernow-k7: Work when kernel is compiled for SMP

[Ben Collins]

On Wed, 2006-01-04 at 23:26 +0100, Dominik Brodowski wrote:
> On Wed, Jan 04, 2006 at 04:59:31PM -0500, Ben Collins wrote:
> > On a UP system with SMP compiled kernel, the powernow-k7 module would not
> > initialize (returned -ENODEV). Not sure why policy->cpu != 0 for UP
> >
> > Signed-off-by: Ben Collins <bcollins@xxxxxxxxxx>
> 
> May the smp_processor_id() be != 0 on _true_ UP on SMP? What happens if (using
> virtual CPU hotplug) the module is modprobe'd with one CPU online, and then
> the second CPU becomes online later?

That's why there is num_possible_cpus() checked aswell. That's supposed
to report possible hotplug cpu's, even if not plugged, correct?

-- 
   Ben Collins <ben.collins@xxxxxxxxxx>
   Developer
   Ubuntu Linux

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