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-rw-r--r--include/linux/msi.h4
-rw-r--r--kernel/irq/msi.c2
2 files changed, 6 insertions, 0 deletions
diff --git a/include/linux/msi.h b/include/linux/msi.h
index 9b552ee58a37..7f6aba9d6b4e 100644
--- a/include/linux/msi.h
+++ b/include/linux/msi.h
@@ -315,6 +315,8 @@ struct msi_domain_info;
* function.
* @domain_free_irqs: Optional function to override the default free
* function.
+ * @msi_post_free: Optional function which is invoked after freeing
+ * all interrupts.
*
* @get_hwirq, @msi_init and @msi_free are callbacks used by the underlying
* irqdomain.
@@ -359,6 +361,8 @@ struct msi_domain_ops {
struct device *dev, int nvec);
void (*domain_free_irqs)(struct irq_domain *domain,
struct device *dev);
+ void (*msi_post_free)(struct irq_domain *domain,
+ struct device *dev);
};
/**
diff --git a/kernel/irq/msi.c b/kernel/irq/msi.c
index 3ccc7f68804b..c71c37d3fa34 100644
--- a/kernel/irq/msi.c
+++ b/kernel/irq/msi.c
@@ -1026,6 +1026,8 @@ void msi_domain_free_irqs_descs_locked(struct irq_domain *domain, struct device
lockdep_assert_held(&dev->msi.data->mutex);
ops->domain_free_irqs(domain, dev);
+ if (ops->msi_post_free)
+ ops->msi_post_free(domain, dev);
msi_domain_free_msi_descs(info, dev);
}