7cc76f5150
When mergeable buffer is used, vnet_hdr_sz is greater than sizeof struct virtio_net_hdr. So we need advance the iov iterators in this case. Fixes 6c36d2e26cda1ad3e2c4b90dd843825fc62fe5b4 ("macvtap: Use iovec iterators") Cc: Herbert Xu <herbert@gondor.apana.org.au> Signed-off-by: Jason Wang <jasowang@redhat.com> Acked-by: Herbert Xu <herbert@gondor.apana.org.au> Signed-off-by: David S. Miller <davem@davemloft.net>