vfio: Add explicit alignments in vfio_iommu_spapr_tce_create

The vfio_iommu_spapr_tce_create struct has 4x32bit and 2x64bit fields
which should have resulted in sizeof(fio_iommu_spapr_tce_create) equal
to 32 bytes. However due to the gcc's default alignment, the actual
size of this struct is 40 bytes.

This fills gaps with __resv1/2 fields.

This should not cause any change in behavior.

Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru>
Acked-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: Alex Williamson <alex.williamson@redhat.com>

1 files changed, 2 insertions, 0 deletions

diff --git a/include/uapi/linux/vfio.h b/include/uapi/linux/vfio.h
index 9fd7b5d8df2f..d1172331ca62 100644
--- a/include/uapi/linux/vfio.h
+++ b/include/uapi/linux/vfio.h
@@ -568,8 +568,10 @@ struct vfio_iommu_spapr_tce_create {
         __u32 flags;
         /* in */
         __u32 page_shift;
+        __u32 __resv1;
         __u64 window_size;
         __u32 levels;
+        __u32 __resv2;
         /* out */
         __u64 start_addr;
 };