Re: [PATCH v3 1/4] genirq: Introduce driver-readable IRQ status word

[Thomas Gleixner <tglx@linutronix.de>]

On Mon, 13 Dec 2010, Jan Kiszka wrote:
> +/**
> + *	get_irq_status - read interrupt line status word
> + *	@irq: Interrupt line of the status word
> + *
> + *	This returns the current content of the status word associated with
> + *	the given interrupt line. See IRQS_* flags for details.
> + */
> +unsigned long get_irq_status(unsigned int irq)
> +{
> +	struct irq_desc *desc = irq_to_desc(irq);
> +
> +	return desc ? desc->irq_data.drv_status : 0;
> +}
> +EXPORT_SYMBOL_GPL(get_irq_status);

We should document that this is a snapshot and in no way serialized
against modifications of drv_status. I'll fix up the kernel doc.

Thanks,

	tglx