NULL domain is valid parameter and handled as default irq domain by irq_find_mapping(). Instead of using NULL domain, dedicated "lookup" parameter should be used to indicate whether conversion of HW interrupt to the logical one is needed or not.
Cc: Thomas Gleixner <t...@linutronix.de> Cc: Marc Zyngier <marc.zyng...@arm.com> Signed-off-by: Vladimir Murzin <vladimir.mur...@arm.com> --- include/linux/irqdesc.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/include/linux/irqdesc.h b/include/linux/irqdesc.h index c9be579..8f5f7d9 100644 --- a/include/linux/irqdesc.h +++ b/include/linux/irqdesc.h @@ -156,7 +156,7 @@ static inline void generic_handle_irq_desc(struct irq_desc *desc) /* * Convert a HW interrupt number to a logical one using a IRQ domain, * and handle the result interrupt number. Return -EINVAL if - * conversion failed. Providing a NULL domain indicates that the + * conversion failed. Providing lookup set to false indicates that the * conversion has already been done. */ int __handle_domain_irq(struct irq_domain *domain, unsigned int hwirq, -- 1.9.1
