linux-kernel - Re: [PATCH v3] irqchip: Add support for ARMv7-M's NVIC

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Date:	Mon, 22 Apr 2013 15:50:50 +0200 (CEST)
From:	Thomas Gleixner <tglx@...utronix.de>
To:	Arnd Bergmann <arnd@...db.de>
cc:	Uwe Kleine-König 
	<u.kleine-koenig@...gutronix.de>, kernel@...gutronix.de,
	linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
	Jonathan Austin <jonathan.austin@....com>,
	Catalin Marinas <catalin.marinas@....com>,
	Benjamin Herrenschmidt <benh@...nel.crashing.org>,
	Grant Likely <grant.likely@...aro.org>,
	Paul Mundt <lethal@...ux-sh.org>, linux-sh@...r.kernel.org,
	Tomasz Figa <tomasz.figa@...il.com>
Subject: Re: [PATCH v3] irqchip: Add support for ARMv7-M's NVIC

On Mon, 22 Apr 2013, Arnd Bergmann wrote:
> On Monday 22 April 2013, Uwe Kleine-König wrote:
> > For the uncommented files using %32 instead of -gc->irq_base should
> > work.
> 
> I'm not sure I understand why this doesn't work for the ones that use
> a base that isn't a multiple of 32. Since you are masking the hwirq
> rather than the irq number, it will still be zero-based, won't it?

The issue is that for anything which uses this w/o irq domains
d->hwirq is 0.

Thanks,

	tglx