Re: [PATCH] genirq: Add IRQ 0 to domain debug file

From: Dmitry Eremin-Solenikov
Date: Sat Nov 15 2014 - 10:21:19 EST


Hello,

2014-11-15 16:01 GMT+03:00 Jiang Liu <jiang.liu@xxxxxxxxxxxxxxx>:
> On 2014/11/15 19:27, Dmitry Eremin-Solenikov wrote:
>> Currently irq_domain_mapping debugfs file dumps IRQ information starting
>> from IRQ 1. IRQ 0 is missing from that file. Add it to have the complete
>> picture of IRQ/domains mappings.
> Hi Dmitry,
> For most irqdomain interfaces, they treat irq0 as invalid
> interrupt. But on x86, it's possible to use irq0 for timer. It causes
> may confusion when enabling irqdomain for x86.

I encountered with this issue when enabling IRQ domains support for
one of ARM sub-architectures.

--
With best wishes
Dmitry
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