virtio: hand virtio ring alignment as argument to vring_new_virtqueue

This allows each virtio user to hand in the alignment appropriate to
their virtio_ring structures.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Acked-by: Christian Borntraeger <borntraeger@de.ibm.com>

1 files changed, 2 insertions, 1 deletions

diff --git a/drivers/s390/kvm/kvm_virtio.c b/drivers/s390/kvm/kvm_virtio.c
index f5a2dbe75575..4e8354aa8576 100644
--- a/drivers/s390/kvm/kvm_virtio.c
+++ b/drivers/s390/kvm/kvm_virtio.c
@@ -193,7 +193,8 @@ static struct virtqueue *kvm_find_vq(struct virtio_device *vdev,
         if (err)
                 goto out;
 
-        vq = vring_new_virtqueue(config->num, vdev, (void *) config->address,
+        vq = vring_new_virtqueue(config->num, KVM_S390_VIRTIO_RING_ALIGN,
+                                 vdev, (void *) config->address,
                                  kvm_notify, callback);
         if (!vq) {
                 err = -ENOMEM;