diff mbox series

[2/2] vfio iommu: typecast corrections

Message ID 1591123357-18297-2-git-send-email-kwankhede@nvidia.com
State New
Headers show
Series [1/2] vfio iommu: Use shift operation for 64-bit integer division | expand

Commit Message

Kirti Wankhede June 2, 2020, 6:42 p.m. UTC 
Fixes sparse warnings by adding '__user' in typecast for
copy_[from,to]_user()

Fixes: d6a4c185660c (vfio iommu: Implementation of ioctl for dirty pages tracking)

Signed-off-by: Kirti Wankhede <kwankhede@nvidia.com>
Reported-by: kbuild test robot <lkp@intel.com>
---
 drivers/vfio/vfio_iommu_type1.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)
diff mbox series

Patch

diff --git a/drivers/vfio/vfio_iommu_type1.c b/drivers/vfio/vfio_iommu_type1.c
index 9d9c8709a24c..5e556ac9102a 100644
--- a/drivers/vfio/vfio_iommu_type1.c
+++ b/drivers/vfio/vfio_iommu_type1.c
@@ -998,14 +998,14 @@  static int update_user_bitmap(u64 __user *bitmap, struct vfio_iommu *iommu,
 				  nbits + shift);
 
 		if (copy_from_user(&leftover,
-				   (const void *)(bitmap + copy_offset),
+				   (void __user *)(bitmap + copy_offset),
 				   sizeof(leftover)))
 			return -EFAULT;
 
 		bitmap_or(dma->bitmap, dma->bitmap, &leftover, shift);
 	}
 
-	if (copy_to_user((void *)(bitmap + copy_offset), dma->bitmap,
+	if (copy_to_user((void __user *)(bitmap + copy_offset), dma->bitmap,
 			 DIRTY_BITMAP_BYTES(nbits + shift)))
 		return -EFAULT;