[PATCH 8/9] virtio: introduce and use virtqueue_add_buf_single

Adding a single direct buffer is a very common case. Introduce an optimized function for that. Signed-off-by: Paolo Bonzini --- drivers/char/hw_random/virtio-rng.c |2 +- drivers/char/virtio_console.c |4 +- drivers/net/virtio_net.c|2 +-

[PATCH 8/9] virtio: introduce and use virtqueue_add_buf_single

Adding a single direct buffer is a very common case. Introduce an optimized function for that. Signed-off-by: Paolo Bonzini pbonz...@redhat.com --- drivers/char/hw_random/virtio-rng.c |2 +- drivers/char/virtio_console.c |4 +- drivers/net/virtio_net.c|2 +-