Export iommu_{get,put}_resv_regions() to the modules so that the driver
can retrieve and use the reserved regions of the device.

Signed-off-by: Yicong Yang <yangyicong@hisilicon.com>
---
 drivers/iommu/iommu.c | 2 ++
 include/linux/iommu.h | 4 ++--
 2 files changed, 4 insertions(+), 2 deletions(-)

diff --git a/drivers/iommu/iommu.c b/drivers/iommu/iommu.c
index dd7863e453a5..e96711eee965 100644
--- a/drivers/iommu/iommu.c
+++ b/drivers/iommu/iommu.c

@@ -2792,6 +2792,7 @@ void iommu_get_resv_regions(struct device *dev, struct list_head *list)
 	if (ops && ops->get_resv_regions)
 		ops->get_resv_regions(dev, list);
 }
+EXPORT_SYMBOL_GPL(iommu_get_resv_regions);
 
 void iommu_put_resv_regions(struct device *dev, struct list_head *list)
 {

@@ -2800,6 +2801,7 @@ void iommu_put_resv_regions(struct device *dev, struct list_head *list)
 	if (ops && ops->put_resv_regions)
 		ops->put_resv_regions(dev, list);
 }
+EXPORT_SYMBOL_GPL(iommu_put_resv_regions);
 
 /**
  * generic_iommu_put_resv_regions - Reserved region driver helper

diff --git a/include/linux/iommu.h b/include/linux/iommu.h
index d2f3435e7d17..1b7b0f370e28 100644
--- a/include/linux/iommu.h
+++ b/include/linux/iommu.h

@@ -450,8 +450,8 @@ extern phys_addr_t iommu_iova_to_phys(struct iommu_domain *domain, dma_addr_t io
 extern void iommu_set_fault_handler(struct iommu_domain *domain,
 			iommu_fault_handler_t handler, void *token);
 
-extern void iommu_get_resv_regions(struct device *dev, struct list_head *list);
-extern void iommu_put_resv_regions(struct device *dev, struct list_head *list);
+void iommu_get_resv_regions(struct device *dev, struct list_head *list);
+void iommu_put_resv_regions(struct device *dev, struct list_head *list);