It has a similar role to affinity mask, but tracks the IPI affinity instead.

Signed-off-by: Qais Yousef <[email protected]>
---
 include/linux/irq.h | 18 ++++++++++++++++++
 1 file changed, 18 insertions(+)

diff --git a/include/linux/irq.h b/include/linux/irq.h
index 7d8c3d88f16f..fcdcb9394e75 100644
--- a/include/linux/irq.h
+++ b/include/linux/irq.h
@@ -168,6 +168,9 @@ struct irq_common_data {
        void                    *handler_data;
        struct msi_desc         *msi_desc;
        cpumask_var_t           affinity;
+#ifdef CONFIG_GENERIC_IRQ_IPI
+       struct ipi_mask         *ipi_mask;
+#endif
 };
 
 /**
@@ -705,6 +708,21 @@ static inline struct cpumask 
*irq_data_get_affinity_mask(struct irq_data *d)
        return d->common->affinity;
 }
 
+#ifdef CONFIG_GENERIC_IRQ_IPI
+
+static inline struct ipi_mask *irq_data_get_ipi_mask(struct irq_data *d)
+{
+       return d->common->ipi_mask;
+}
+
+static inline void irq_data_set_ipi_mask(struct irq_data *d,
+                                        struct ipi_mask *ipimask)
+{
+       d->common->ipi_mask = ipimask;
+}
+
+#endif
+
 unsigned int arch_dynirq_lower_bound(unsigned int from);
 
 int __irq_alloc_descs(int irq, unsigned int from, unsigned int cnt, int node,
-- 
2.1.0

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