On Fri, Sep 27, 2019 at 01:26:56PM +0200, Stefano Garzarella wrote:
> -const struct vsock_transport *vsock_core_get_transport(void)
> +const struct vsock_transport *vsock_core_get_transport(struct vsock_sock *vsk)
>  {
>  	/* vsock_register_mutex not taken since only the transport uses this
>  	 * function and only while registered.
>  	 */
> -	return transport_single;

This comment is about protecting transport_single.  It no longer applies
when using vsk->transport.  Please drop it.

Otherwise:

Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>