Question: ARM: local timers: add num_possible_cpus() in local_timer_register()

[Russell King - ARM Linux]

On Mon, Jan 14, 2013 at 09:33:45PM +0800, Steve zhan wrote:
> Hi Marc,
> 
> 	Do you think we should add num_possible_cpus() in 
> local_timer_register() function, When core number is 
> > 1, then reutrn TRUE? Enable the local timer only if 
> we have more than one CPU, if the current config is
> SMP and setup_max_cpus >= 1, but if smp_init_cpus in 
> platform code have set cpu possible value to One(that 
> maybe read number from scu or other hardware), then 
> percpu_timer_setup in smp_prepare_cpus have no chance
> to be called.
> 
> 	For local timer, because local_timer_register have
> return 1, that will miss global timer register. 

What about platforms where all they have are the local timers and no
global timer?