Re: [PATCH 08/42] introduce nr_irqs

[Eric W. Biederman]

"Yinghai Lu" <yhlu.kernel@xxxxxxxxx> writes:

>> Also, what's the point, if it's just a renaming?
>
> that is the start point.
> nr_irqs is variable, and will be probed later. and use that number to
> init dyn_alloc.

YH. 

In my conception the code in kernel/irq.c that today does:

struct irq_desc *desc;
if (irq >= NR_IRQS)
   return -EINVAL;
desc = irq_desc + irq;

Should become:

struct irq_desc *desc;
desc = irq_desc(irq);
if (!desc)
   return -EINVAL;

Eric

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