From 0d0b4c866bcce647f40d73efe5e90aeeb079050a Mon Sep 17 00:00:00 2001 From: Jiang Liu Date: Mon, 1 Jun 2015 16:05:12 +0800 Subject: genirq: Introduce struct irq_common_data to host shared irq data With the introduction of hierarchy irqdomain, struct irq_data becomes per-chip instead of per-irq and there may be multiple irq_datas associated with the same irq. Some per-irq data stored in struct irq_data now may get duplicated into multiple irq_datas, and causes inconsistent view. So introduce struct irq_common_data to host per-irq common data and to achieve consistent view among irq_chips. Signed-off-by: Jiang Liu Cc: Konrad Rzeszutek Wilk Cc: Tony Luck Cc: Bjorn Helgaas Cc: Benjamin Herrenschmidt Cc: Randy Dunlap Cc: Yinghai Lu Cc: Borislav Petkov Cc: Jason Cooper Cc: Kevin Cernekee Cc: Arnd Bergmann Cc: Marc Zyngier Link: http://lkml.kernel.org/r/1433145945-789-4-git-send-email-jiang.liu@linux.intel.com Signed-off-by: Thomas Gleixner --- kernel/irq/irqdomain.c | 1 + 1 file changed, 1 insertion(+) (limited to 'kernel/irq/irqdomain.c') diff --git a/kernel/irq/irqdomain.c b/kernel/irq/irqdomain.c index 7fac311057b8..3552b8750efd 100644 --- a/kernel/irq/irqdomain.c +++ b/kernel/irq/irqdomain.c @@ -834,6 +834,7 @@ static struct irq_data *irq_domain_insert_irq_data(struct irq_domain *domain, if (irq_data) { child->parent_data = irq_data; irq_data->irq = child->irq; + irq_data->common = child->common; irq_data->node = child->node; irq_data->domain = domain; } -- cgit v1.2.3