[PATCH] iommu: Update the document of IOMMU_DOMAIN_UNMANAGED

[Keqian Zhu]

Signed-off-by: Keqian Zhu <zhukeqian1@xxxxxxxxxx>
---
 include/linux/iommu.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/include/linux/iommu.h b/include/linux/iommu.h
index 77e561ed57fd..e8f2efae212b 100644
--- a/include/linux/iommu.h
+++ b/include/linux/iommu.h
@@ -68,7 +68,7 @@ struct iommu_domain_geometry {
  *				  devices
  *	IOMMU_DOMAIN_IDENTITY	- DMA addresses are system physical addresses
  *	IOMMU_DOMAIN_UNMANAGED	- DMA mappings managed by IOMMU-API user, used
- *				  for VMs
+ *				  for VMs or userspace driver frameworks
  *	IOMMU_DOMAIN_DMA	- Internally used for DMA-API implementations.
  *				  This flag allows IOMMU drivers to implement
  *				  certain optimizations for these domains
-- 
2.19.1