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-rw-r--r--include/linux/iommu.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/include/linux/iommu.h b/include/linux/iommu.h
index 436dc21318af..431638110c6a 100644
--- a/include/linux/iommu.h
+++ b/include/linux/iommu.h
@@ -253,6 +253,7 @@ extern void iommu_group_remove_device(struct device *dev);
extern int iommu_group_for_each_dev(struct iommu_group *group, void *data,
int (*fn)(struct device *, void *));
extern struct iommu_group *iommu_group_get(struct device *dev);
+extern struct iommu_group *iommu_group_ref_get(struct iommu_group *group);
extern void iommu_group_put(struct iommu_group *group);
extern int iommu_group_register_notifier(struct iommu_group *group,
struct notifier_block *nb);