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[Qemu-devel] [PATCH RFC 08/11] virtio_blk: use virtio v1.0 endian


From: Cornelia Huck
Subject: [Qemu-devel] [PATCH RFC 08/11] virtio_blk: use virtio v1.0 endian
Date: Tue, 7 Oct 2014 16:39:49 +0200

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

Reviewed-by: Thomas Huth <address@hidden>
Reviewed-by: David Hildenbrand <address@hidden>
Signed-off-by: Cornelia Huck <address@hidden>
---
 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 0a58140..08a8012 100644
--- a/drivers/block/virtio_blk.c
+++ b/drivers/block/virtio_blk.c
@@ -119,6 +119,10 @@ 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_virtio_u32(vq->vdev, vbr->out_hdr.type);
+       vbr->out_hdr.sector = cpu_to_virtio_u64(vq->vdev, vbr->out_hdr.sector);
+
        return virtqueue_add_sgs(vq, sgs, num_out, num_in, vbr, GFP_ATOMIC);
 }
 
-- 
1.7.9.5




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