[PATCH] powerpc: Print information about mapping hw irqs to virtual irqs

[Michael Ellerman]

On Mon, 2009-04-06 at 14:30 +0200, Wolfram Sang wrote:
> On Mon, Apr 06, 2009 at 12:05:02PM +1000, Michael Ellerman wrote:
> > diff --git a/arch/powerpc/kernel/irq.c b/arch/powerpc/kernel/irq.c
> > index 5576147..8c1a496 100644
> > --- a/arch/powerpc/kernel/irq.c
> > +++ b/arch/powerpc/kernel/irq.c
> > @@ -672,11 +672,13 @@ unsigned int irq_create_mapping(struct irq_host *host,
> >  			return NO_IRQ;
> >  		}
> >  	}
> > -	pr_debug("irq: -> obtained virq %d\n", virq);
> >  
> >  	if (irq_setup_virq(host, virq, hwirq))
> >  		return NO_IRQ;
> >  
> > +	printk(KERN_DEBUG "irq: irq %lu on host %s mapped to virtual irq %u\n",
> > +		hwirq, host->of_node ? host->of_node->full_name : "null", virq);
> > +
> 
> Are you replacing the pr_debug because you want to drop the
> DEBUG-dependency?

Yes. Several people have been confused by the value in /proc/interrupts
not matching what they expected - so I want there to be something in
dmesg by default that will hopefully make it clear to people what's
going on.

cheers

-- 
Michael Ellerman
OzLabs, IBM Australia Development Lab

wwweb: http://michael.ellerman.id.au
phone: +61 2 6212 1183 (tie line 70 21183)

We do not inherit the earth from our ancestors,
we borrow it from our children. - S.M.A.R.T Person
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