From: Kirti Wankhede <kwankhede@nvidia.com>
Date: Wed, 3 Jun 2020 00:12:37 +0530
Subject: vfio iommu: typecast corrections
Git-commit: c8e9df4744a3e4d897a6ac6e71a38aa8d7b65aa0
Patch-mainline: v5.8-rc1
References: bsc#1175713

Fixes sparse warnings by adding '__user' in typecast for
copy_[from,to]_user()

Fixes: d6a4c185660c ("vfio iommu: Implementation of ioctl for dirty pages tracking")
Reported-by: kbuild test robot <lkp@intel.com>
Signed-off-by: Kirti Wankhede <kwankhede@nvidia.com>
Signed-off-by: Alex Williamson <alex.williamson@redhat.com>
Acked-by: Joerg Roedel <jroedel@suse.de>
---
 drivers/vfio/vfio_iommu_type1.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/vfio/vfio_iommu_type1.c b/drivers/vfio/vfio_iommu_type1.c
index 0e4e71799290..391fafe82c5c 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;