openkylin
/
linux
mirror of https://gitee.com/openkylin/linux.git
9
0
Fork 0
Code Issues Projects Releases Wiki Activity

vfio iommu: typecast corrections 

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

Fixes: d6a4c18566 ("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>
This commit is contained in:
Kirti Wankhede 2020-06-03 00:12:37 +05:30 committed by Alex Williamson
parent cd0bb41ea8
commit c8e9df4744
1 changed files with 2 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

4
drivers/vfio/vfio_iommu_type1.c
View File

@ -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;