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genirq: use inline function for irq_to_desc
For the non sparse irq case an inline function is perfectly fine. Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
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@ -204,8 +204,6 @@ struct irq_desc {
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const char *name;
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} ____cacheline_internodealigned_in_smp;
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extern struct irq_desc *irq_to_desc(unsigned int irq);
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extern struct irq_desc *irq_to_desc_alloc(unsigned int irq);
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#ifndef CONFIG_HAVE_SPARSE_IRQ
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@ -216,8 +214,21 @@ extern struct irq_desc irq_desc[NR_IRQS];
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extern struct irq_desc *irq_desc;
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#endif
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static inline struct irq_desc *irq_to_desc(unsigned int irq)
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{
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return (irq < nr_irqs) ? irq_desc + irq : NULL;
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}
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static inline struct irq_desc *irq_to_desc_alloc(unsigned int irq)
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{
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return irq_to_desc(irq);
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}
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#else
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extern struct irq_desc *irq_to_desc(unsigned int irq);
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extern struct irq_desc *irq_to_desc_alloc(unsigned int irq);
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extern struct irq_desc *sparse_irqs;
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#define for_each_irq_desc(irqX, desc) \
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for (desc = sparse_irqs, irqX = desc->irq; desc; desc = desc->next, irqX = desc ? desc->irq : -1U)
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@ -262,20 +262,6 @@ struct irq_desc irq_desc[NR_IRQS] __cacheline_aligned_in_smp = {
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#endif
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#ifndef CONFIG_HAVE_SPARSE_IRQ
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struct irq_desc *irq_to_desc(unsigned int irq)
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{
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if (irq < nr_irqs)
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return &irq_desc[irq];
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return NULL;
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}
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struct irq_desc *irq_to_desc_alloc(unsigned int irq)
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{
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return irq_to_desc(irq);
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}
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#endif
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/*
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* What should we do if we get a hw irq event on an illegal vector?
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* Each architecture has to answer this themself.
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