Alexandre,

On Fri, 2 Sep 2016, Alexandre TORGUE wrote:

This all looks very reasonable. The only complaint I have is your variable
declaration ordering or the lack thereof.

1)

+	struct irq_domain *domain = irq_desc_get_handler_data(desc);
+	struct irq_chip_generic *gc = domain->gc->gc[0];
+	struct irq_chip *chip = irq_desc_get_chip(desc);
+	unsigned long pending;
+	int n;

2)

+	struct irq_chip_generic *gc = irq_data_get_irq_chip_data(data);
+	u32 rtsr, ftsr;
+	int pin = data->hwirq;

3)

+	struct irq_chip_generic *gc = irq_data_get_irq_chip_data(data);
+	int pin = data->hwirq;
+	u32 emr;

4)

+	irq_hw_number_t hwirq;
+	struct irq_fwspec *fwspec = data;
+	struct irq_chip_generic *gc = d->gc->gc[0];

5)

+	int nr_irqs, nr_exti, ret, i;
+	unsigned int clr = IRQ_NOREQUEST | IRQ_NOPROBE | IRQ_NOAUTOEN;
+	struct irq_domain *domain;
+	struct irq_chip_generic *gc;
+	void *base;

#1 and 3 have the ordering which is preferred in the irq code.

#2, #4 and #5 are three permutations which are way harder to read.

+	struct irq_chip_generic *gc = irq_data_get_irq_chip_data(data);
+	int pin = data->hwirq;
+	u32 rtsr, ftsr;

+	struct irq_chip_generic *gc = d->gc->gc[0];
+	struct irq_fwspec *fwspec = data;
+	irq_hw_number_t hwirq;

+	unsigned int clr = IRQ_NOREQUEST | IRQ_NOPROBE | IRQ_NOAUTOEN;
+	int nr_irqs, nr_exti, ret, i;
+	struct irq_chip_generic *gc;
+	struct irq_domain *domain;
+	void *base;

Can you spot the difference?

Thanks,

	tglx