From mboxrd@z Thu Jan 1 00:00:00 1970 From: jiang.liu@linux.intel.com (Jiang Liu) Date: Fri, 21 Nov 2014 11:23:26 +0800 Subject: [Patch irqdomain: Enhance irq_domain_free_irqs_common() to support parentless irqdomain Message-ID: <1416540206-18103-1-git-send-email-jiang.liu@linux.intel.com> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org 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 --- 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