linux-kernel - Re: [PATCH v3 12/24] C6X: interrupt handling

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Message-ID: <alpine.LFD.2.02.1109280115130.2711@ionos>
Date:	Wed, 28 Sep 2011 01:30:28 +0200 (CEST)
From:	Thomas Gleixner <tglx@...utronix.de>
To:	Mark Salter <msalter@...hat.com>
cc:	LKML <linux-kernel@...r.kernel.org>, linux-arch@...r.kernel.org,
	Grant Likely <grant.likely@...retlab.ca>
Subject: Re: [PATCH v3 12/24] C6X: interrupt handling

B1;2601;0cOn Tue, 27 Sep 2011, Mark Salter wrote:
> diff --git a/arch/c6x/kernel/irq.c b/arch/c6x/kernel/irq.c
> +static raw_spinlock_t core_irq_lock;

static DEFINE_RAW_SPINLOCK(...) please, so you can get rid of the
raw_spin_lock_init(...) below.

> +static int core_host_map(struct irq_host *h, unsigned int virq,
> +			 irq_hw_number_t hw)
> +{
> +	if (hw < 4 || hw >= NR_PRIORITY_IRQS)
> +		return -1;

Proper error code please, i.e -EINVAL or such

> +
> +	irq_set_status_flags(virq, IRQ_LEVEL);
> +	irq_set_chip_and_handler(virq, &core_chip, handle_level_irq);
> +	return 0;
> +}
> +
> +static struct irq_host_ops core_host_ops = {
> +	.map = core_host_map,
> +};
> +
> +void __init init_IRQ(void)
> +{
> +	struct device_node *np;
> +
> +	raw_spin_lock_init(&core_irq_lock);

See above.

Aside of that I'm still not too happy about the of_/irqhost/domain
code replication and the cleanup which needs to be done after that has
been solved. Though if you and Grant have a plan for that, I'm not in
the way.

Btw, keeping people who have been added to previous review comments of
a particular patch in the CC makes everyones life easier.

Thanks,

	tglx
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