linux-kernel - Re: [PATCH v5 4/6] spmi: pmic_arb: add support for interrupt handling

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Date:	Tue, 4 Feb 2014 21:10:45 +0100 (CET)
From:	Thomas Gleixner <tglx@...utronix.de>
To:	Josh Cartwright <joshc@...eaurora.org>
cc:	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	linux-kernel@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
	linux-arm-msm@...r.kernel.org,
	Sagar Dharia <sdharia@...eaurora.org>,
	Gilad Avidov <gavidov@...eaurora.org>,
	Michael Bohan <mbohan@...eaurora.org>
Subject: Re: [PATCH v5 4/6] spmi: pmic_arb: add support for interrupt
 handling

On Mon, 3 Feb 2014, Josh Cartwright wrote:
> +static void qpnpint_irq_ack(struct irq_data *d)
> +{
> +	struct spmi_pmic_arb_dev *pa = irq_data_get_irq_chip_data(d);
> +	u8 irq  = d->hwirq >> 8;
> +	u8 apid = d->hwirq;
> +	unsigned long flags;
> +	u8 data;
> +
> +	spin_lock_irqsave(&pa->lock, flags);

This wants to be a raw_spinlock - think about RT!

Looks sane otherwise.

Thanks,

	tglx
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