diff options
| author | Michael S. Tsirkin <mst@redhat.com> | 2012-09-24 13:26:55 +0200 |
|---|---|---|
| committer | Michael S. Tsirkin <mst@redhat.com> | 2012-10-29 18:25:23 +0200 |
| commit | c8d28e7e336869524d166d88f08ad476eadedccb (patch) | |
| tree | a1ed89c685f95ac09c13f53c3ba461a0580dacd9 /hw/virtio-net.c | |
| parent | 280598b7a5fdf96fb79d87a2129750bad5dbf24b (diff) | |
virtio-net: first s/g is always at start of buf
We know offset is 0, assert that.
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Diffstat (limited to 'hw/virtio-net.c')
| -rw-r--r-- | hw/virtio-net.c | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/hw/virtio-net.c b/hw/virtio-net.c index 5128a2a8ba..59ab6746f0 100644 --- a/hw/virtio-net.c +++ b/hw/virtio-net.c @@ -631,6 +631,7 @@ static ssize_t virtio_net_receive(NetClientState *nc, const uint8_t *buf, size_t } if (i == 0) { + assert(offset == 0); if (n->mergeable_rx_bufs) { mhdr_cnt = iov_copy(mhdr_sg, ARRAY_SIZE(mhdr_sg), sg, elem.in_num, @@ -638,8 +639,8 @@ static ssize_t virtio_net_receive(NetClientState *nc, const uint8_t *buf, size_t sizeof(mhdr.num_buffers)); } - receive_header(n, sg, elem.in_num, buf + offset, size - offset); - offset += n->host_hdr_len; + receive_header(n, sg, elem.in_num, buf, size); + offset = n->host_hdr_len; total += n->guest_hdr_len; guest_offset = n->guest_hdr_len; } else { |