Re: [PATCH 1/5] cpumask: update irq_desc to use cpumask_var_t

[Mike Travis <travis@sgi.com>]

Yinghai Lu wrote:
...
>> Or am I missing your point?
> 
> static void init_copy_one_irq_desc(int irq, struct irq_desc *old_desc,
>                  struct irq_desc *desc, int cpu)
> {
>         memcpy(desc, old_desc, sizeof(struct irq_desc));
> 
> 
> will overwrite new_desc->affinity and pending_mask
> 
> YH

Yup, apparently I was missing your point (banging on head once more).

Thanks for spotting this!

Ingo - what's the state of tip/cpus4096?  Shall I push this as an
append patch, or redo the original so bisectability works.

Also, Yinghai - would you know of a straight forward way to test
the irq migration?   I have taken cpus offline and back online
but wasn't sure if any irq's were being moved off of cpu 0 which
cannot be taken offline.

Thanks,
Mike