On Wed, 06 Aug 2008 18:02:18 -0700
ebiederm@xmission.com (Eric W. Biederman) wrote:

quoted text
> Alan Cox <alan@lxorguk.ukuu.org.uk> writes:
> 
> > A lot of these are range checks so could be replaced by a single
> > valid_irq(irq) test.
> 
> Yes.  My first impression was that with NR_IRQS dead valid_irq could
> easily become. #define valid_irq(irq) ((irq) != 0) 

Not really - there are lots of cases where we sanity check an IRQ passed
from user space or module parameter configuration. So we do actually need

	valid_irq(irq)		((irq) > 0 && (irq) < nr_irqs)

[or relevant per arch alternatives]

Alan
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