Re: irq 0?

From: Ian Campbell
Date: Mon Nov 07 2005 - 07:25:59 EST


On Mon, 2005-11-07 at 20:54 +0900, Miles Bader wrote:
> I notice that arch/v850/kernel/irq.c has been updated with a
> "show_interrupts" function; in this function it contains the following
> bit of code:
>
>
> if (i == 0) {
> seq_puts(p, " ");
> for (i=0; i < 1 /*smp_num_cpus*/; i++)
> seq_printf(p, "CPU%d ", i);
> seq_putc(p, '\n');
> }
>
> if (i < NR_IRQS) {
> ... show interrupt i ...
> } else if (i == NR_IRQS)
> seq_printf(p, "ERR: %10lu\n", irq_err_count);
>
> where "i" is iterated (by procfs) from 0...NR_IRQS.
>
> On the v850, irq 0 is a real interrupt, so this doesn't really work
> properly -- it doesn't display an entry for irq 0.

What makes you say that? The i==0 code seems to fall through and
therefore should print IRQ0 just fine.

Ian.

--
Ian Campbell
Current Noise: Vader - The Final Massacre

Ignore previous fortune.

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