genirq: Restrict effective affinity to interrupts actually using it

[mirror_ubuntu-bionic-kernel.git] / include / linux / irq.h

diff --git a/include/linux/irq.h b/include/linux/irq.h
index d2d543794093f1272aa62551cfb9867195b490cc..dcfac6c8ba18dd0e7957d1bc40733369888e2f63 100644 (file)
--- a/include/linux/irq.h
+++ b/include/linux/irq.h
@@ -781,7 +781,10 @@ static inline struct cpumask *irq_data_get_affinity_mask(struct irq_data *d)
 static inline
 struct cpumask *irq_data_get_effective_affinity_mask(struct irq_data *d)
 {
-       return d->common->effective_affinity;
+       if (!cpumask_empty(d->common->effective_affinity))
+               return d->common->effective_affinity;
+
+       return d->common->affinity;
 }
 static inline void irq_data_update_effective_affinity(struct irq_data *d,
                                                      const struct cpumask *m)