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Subject[PATCH RFC v3 11/16] virtio_blk: use virtio v1.0 endian
From: Cornelia Huck <cornelia.huck@de.ibm.com>

Note that we care only about the fields still in use for virtio v1.0.

Reviewed-by: Thomas Huth <thuth@linux.vnet.ibm.com>
Reviewed-by: David Hildenbrand <dahi@linux.vnet.ibm.com>
Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com>

Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
---
drivers/block/virtio_blk.c | 4 ++++
1 file changed, 4 insertions(+)

diff --git a/drivers/block/virtio_blk.c b/drivers/block/virtio_blk.c
index c6a27d5..327e601 100644
--- a/drivers/block/virtio_blk.c
+++ b/drivers/block/virtio_blk.c
@@ -113,6 +113,10 @@ static int __virtblk_add_req(struct virtqueue *vq,
sg_init_one(&status, &vbr->status, sizeof(vbr->status));
sgs[num_out + num_in++] = &status;

+ /* we only care about fields valid for virtio-1 */
+ vbr->out_hdr.type = cpu_to_virtio32(vq->vdev, vbr->out_hdr.type);
+ vbr->out_hdr.sector = cpu_to_virtio64(vq->vdev, vbr->out_hdr.sector);
+
return virtqueue_add_sgs(vq, sgs, num_out, num_in, vbr, GFP_ATOMIC);
}

--
MST


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