From 25e638447e329f08febae2b64c7f85b3bb95e998 Mon Sep 17 00:00:00 2001 From: Hangtian Zhu Date: Tue, 19 May 2026 09:16:26 +0800 Subject: [PATCH] genirq: export irq_can_set_affinity() for module drivers Export irq_can_set_affinity() for loadable drivers that need a runtime check for IRQ affinity capability. In hierarchical IRQ setups where the effective irqchip path lacks .irq_set_affinity(), drivers may need to switch to a fallback policy. Without this export, module drivers cannot use the core helper and have to open-code equivalent checks. Signed-off-by: Hangtian Zhu Acked-by: Thomas Gleixner Link: https://patch.msgid.link/20260519011627.713068-2-hangtian.zhu@oss.qualcomm.com Signed-off-by: Jeff Johnson --- kernel/irq/manage.c | 1 + 1 file changed, 1 insertion(+) diff --git a/kernel/irq/manage.c b/kernel/irq/manage.c index 7eb07e3bdb4c..f73fda08417a 100644 --- a/kernel/irq/manage.c +++ b/kernel/irq/manage.c @@ -171,6 +171,7 @@ int irq_can_set_affinity(unsigned int irq) { return __irq_can_set_affinity(irq_to_desc(irq)); } +EXPORT_SYMBOL_GPL(irq_can_set_affinity); /** * irq_can_set_affinity_usr - Check if affinity of a irq can be set from user space