Originally irq_domain_free_irqs_common() is designed to be used by irqdomains with parent. But there are desires to reuse for parentless irqdomains for code reduction. So check domain->parent before invoking irq_domain_free_irqs_parent(). Signed-off-by: Jiang Liu <jiang.liu@xxxxxxxxxxxxxxx> --- Hi Thomas, This patch applies to tip/irq/irqdomain, it helps to reduce code size on ARM. Seems we still have chance to merge it into tip/irq/irqdomain:) Regards! Gerry --- kernel/irq/irqdomain.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/kernel/irq/irqdomain.c b/kernel/irq/irqdomain.c index 029acf11efed..0449d2869e17 100644 --- a/kernel/irq/irqdomain.c +++ b/kernel/irq/irqdomain.c @@ -975,7 +975,8 @@ void irq_domain_free_irqs_common(struct irq_domain *domain, unsigned int virq, if (irq_data) irq_domain_reset_irq_data(irq_data); } - irq_domain_free_irqs_parent(domain, virq, nr_irqs); + if (domain->parent) + irq_domain_free_irqs_parent(domain, virq, nr_irqs); } /** -- 1.7.10.4 -- To unsubscribe from this list: send the line "unsubscribe linux-pci" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
