linux-kernel - Re: [RFC PATCH 1/4] DRIVERS: IRQCHIP: Add crossbar irqchip driver

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Date:	Thu, 12 Sep 2013 15:54:17 -0500
From:	Felipe Balbi <balbi@...com>
To:	Sricharan R <r.sricharan@...com>
CC:	<linux-kernel@...r.kernel.org>, <devicetree@...r.kernel.org>,
	<linux-doc@...r.kernel.org>,
	<linux-arm-kernel@...ts.infradead.org>,
	<linux-omap@...r.kernel.org>, <tglx@...utronix.de>,
	<linus.walleij@...aro.org>, <santosh.shilimkar@...com>,
	<linux@....linux.org.uk>, <tony@...mide.com>, <rnayak@...com>
Subject: Re: [RFC PATCH 1/4] DRIVERS: IRQCHIP: Add crossbar irqchip driver

On Thu, Sep 12, 2013 at 09:09:08PM +0530, Sricharan R wrote:
> +unsigned int crossbar_request_irq(struct irq_data *d)
> +{
> +	int cb_no = d->hwirq;
> +	int virq = allocate_free_irq(cb_no);
> +	void *irq = &cb->crossbar_map[cb_no].hwirq;
> +	int err;
> +
> +	err = request_threaded_irq(virq, crossbar_irq, NULL,
> +				   0, "CROSSBAR", irq);

this is wrong, why don't you just set crossbar up as a chained handler.

-- 
balbi

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