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Diffstat (limited to 'kernel/irq/chip.c')
-rw-r--r--kernel/irq/chip.c18
1 files changed, 14 insertions, 4 deletions
diff --git a/kernel/irq/chip.c b/kernel/irq/chip.c
index b4c1bc7c9ca2..93c373a8b12b 100644
--- a/kernel/irq/chip.c
+++ b/kernel/irq/chip.c
@@ -756,7 +756,6 @@ void handle_percpu_devid_irq(struct irq_desc *desc)
{
struct irq_chip *chip = irq_desc_get_chip(desc);
struct irqaction *action = desc->action;
- void *dev_id = raw_cpu_ptr(action->percpu_dev_id);
unsigned int irq = irq_desc_get_irq(desc);
irqreturn_t res;
@@ -765,9 +764,20 @@ void handle_percpu_devid_irq(struct irq_desc *desc)
if (chip->irq_ack)
chip->irq_ack(&desc->irq_data);
- trace_irq_handler_entry(irq, action);
- res = action->handler(irq, dev_id);
- trace_irq_handler_exit(irq, action, res);
+ if (likely(action)) {
+ trace_irq_handler_entry(irq, action);
+ res = action->handler(irq, raw_cpu_ptr(action->percpu_dev_id));
+ trace_irq_handler_exit(irq, action, res);
+ } else {
+ unsigned int cpu = smp_processor_id();
+ bool enabled = cpumask_test_cpu(cpu, desc->percpu_enabled);
+
+ if (enabled)
+ irq_percpu_disable(desc, cpu);
+
+ pr_err_once("Spurious%s percpu IRQ%u on CPU%u\n",
+ enabled ? " and unmasked" : "", irq, cpu);
+ }
if (chip->irq_eoi)
chip->irq_eoi(&desc->irq_data);