linux-kernel - Re: [PATCH 08/42] introduce nr

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Date:	Fri, 08 Aug 2008 23:07:45 -0700
From:	ebiederm@...ssion.com (Eric W. Biederman)
To:	"Yinghai Lu" <yhlu.kernel@...il.com>
Cc:	"Ingo Molnar" <mingo@...e.hu>,
	"Thomas Gleixner" <tglx@...utronix.de>,
	"H. Peter Anvin" <hpa@...or.com>,
	"Dhaval Giani" <dhaval@...ux.vnet.ibm.com>,
	"Mike Travis" <travis@....com>,
	"Andrew Morton" <akpm@...ux-foundation.org>,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH 08/42] introduce nr_irqs

"Yinghai Lu" <yhlu.kernel@...il.com> writes:

> On Fri, Aug 8, 2008 at 6:00 PM, Eric W. Biederman <ebiederm@...ssion.com> wrote:
>> Yinghai Lu <yhlu.kernel@...il.com> writes:
>>
>>> and at this point it is equal NR_IRQS
>>
>> This patch is ok, but this approach is fundamentally broken.
>> Only 19 architectures use GENERIC_HARDIRQS
>>
>> The only required interface is interrupt.h not irq.h
>>
>> So you may not replace NR_IRQS with nr_irqs in anything other
>> then genirq code and some architecture code.
>>
>> Doing so will break the build on several architectures.
>
> some platforms will not use include/linux/irq.h and kernel/irq/handle.c ?

Yes. interrupt.h is the common infrastructure.

Eric

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