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virtio-net: fix used len for tx 

There is no out sg for TX, so used buf length for tx
should always be 0.

Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
This commit is contained in:
Michael S. Tsirkin 2012-09-24 15:15:43 +02:00
parent 0cea71a207
commit 40bad8f3de
1 changed files with 2 additions and 2 deletions
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4
hw/virtio-net.c
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@ -690,7 +690,7 @@ static void virtio_net_tx_complete(NetClientState *nc, ssize_t len)
{
VirtIONet *n = DO_UPCAST(NICState, nc, nc)->opaque;
virtqueue_push(n->tx_vq, &n->async_tx.elem, n->async_tx.len);
virtqueue_push(n->tx_vq, &n->async_tx.elem, 0);
virtio_notify(&n->vdev, n->tx_vq);
n->async_tx.elem.out_num = n->async_tx.len = 0;
@ -754,7 +754,7 @@ static int32_t virtio_net_flush_tx(VirtIONet *n, VirtQueue *vq)
len += ret;
virtqueue_push(vq, &elem, len);
virtqueue_push(vq, &elem, 0);
virtio_notify(&n->vdev, vq);
if (++num_packets >= n->tx_burst) {