Re: [PATCH V2 2/7] DRIVERS: IRQCHIP: CROSSBAR: Add support forCrossbar IP

From: Thomas Gleixner
Date: Wed Oct 30 2013 - 11:30:40 EST


On Wed, 30 Oct 2013, Sricharan R wrote:
> +static inline const u32 allocate_free_irq(int cb_no)

I understand the "static inline" part, but "const u32" is more than
fishy. What's wrong with "static inline int" ?

> +{
> + int i;
> +
> + for (i = 0; i < cb->int_max; i++) {
> + if (cb->irq_map[i] == IRQ_FREE) {
> + cb->irq_map[i] = cb_no;
> + return i;
> + }
> + }
> +
> + return -ENODEV;
> +}

> +static int crossbar_domain_xlate(struct irq_domain *d,
> + struct device_node *controller,
> + const u32 *intspec, unsigned int intsize,
> + unsigned long *out_hwirq,
> + unsigned int *out_type)
> +{
> + unsigned long ret = 0;

Why do you need to initialize ret when you assign a value to it in the
next line?

Thanks,

tglx
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