1 files changed, 8 insertions, 1 deletions

diff --git a/drivers/base/iommu.c b/drivers/base/iommu.c
index 5e039d4f877c..9f0e672f4be8 100644
--- a/drivers/base/iommu.c
+++ b/drivers/base/iommu.c
@@ -31,7 +31,7 @@ void register_iommu(struct iommu_ops *ops)
         iommu_ops = ops;
 }
 
-bool iommu_found()
+bool iommu_found(void)
 {
         return iommu_ops != NULL;
 }
@@ -98,3 +98,10 @@ phys_addr_t iommu_iova_to_phys(struct iommu_domain *domain,
         return iommu_ops->iova_to_phys(domain, iova);
 }
 EXPORT_SYMBOL_GPL(iommu_iova_to_phys);
+
+int iommu_domain_has_cap(struct iommu_domain *domain,
+                         unsigned long cap)
+{
+        return iommu_ops->domain_has_cap(domain, cap);
+}
+EXPORT_SYMBOL_GPL(iommu_domain_has_cap);