static struct sock *__vsock_create(struct net *net,
				   struct socket *sock,
				   struct sock *parent,
				   gfp_t priority,
				   unsigned short type,
				   int kern)
{
	struct sock *sk;
	struct vsock_sock *psk;
	struct vsock_sock *vsk;

	sk = sk_alloc(net, AF_VSOCK, priority, &vsock_proto, kern);
	if (!sk)
		return NULL;

	sock_init_data(sock, sk);

	/* sk->sk_type is normally set in sock_init_data, but only if sock is
	 * non-NULL. We make sure that our sockets always have a type by
	 * setting it here if needed.
	 */
	if (!sock)
		sk->sk_type = type;

	vsk = vsock_sk(sk);
	vsock_addr_init(&vsk->local_addr, VMADDR_CID_ANY, VMADDR_PORT_ANY);
	vsock_addr_init(&vsk->remote_addr, VMADDR_CID_ANY, VMADDR_PORT_ANY);

	sk->sk_destruct = vsock_sk_destruct;
	sk->sk_backlog_rcv = vsock_queue_rcv_skb;
	sock_reset_flag(sk, SOCK_DONE);

	INIT_LIST_HEAD(&vsk->bound_table);
	INIT_LIST_HEAD(&vsk->connected_table);
	vsk->listener = NULL;
	INIT_LIST_HEAD(&vsk->pending_links);
	INIT_LIST_HEAD(&vsk->accept_queue);
	vsk->rejected = false;
	vsk->sent_request = false;
	vsk->ignore_connecting_rst = false;
	vsk->peer_shutdown = 0;
	INIT_DELAYED_WORK(&vsk->connect_work, vsock_connect_timeout);
	INIT_DELAYED_WORK(&vsk->pending_work, vsock_pending_work);

	psk = parent ? vsock_sk(parent) : NULL;
	if (parent) {
		vsk->trusted = psk->trusted;
		vsk->owner = get_cred(psk->owner);
		vsk->connect_timeout = psk->connect_timeout;
		vsk->buffer_size = psk->buffer_size;
		vsk->buffer_min_size = psk->buffer_min_size;
		vsk->buffer_max_size = psk->buffer_max_size;
	} else {
		vsk->trusted = ns_capable_noaudit(&init_user_ns, CAP_NET_ADMIN);
		vsk->owner = get_current_cred();
		vsk->connect_timeout = VSOCK_DEFAULT_CONNECT_TIMEOUT;
		vsk->buffer_size = VSOCK_DEFAULT_BUFFER_SIZE;
		vsk->buffer_min_size = VSOCK_DEFAULT_BUFFER_MIN_SIZE;
		vsk->buffer_max_size = VSOCK_DEFAULT_BUFFER_MAX_SIZE;
	}

	return sk;
}
static struct sock *__vsock_create(struct net *net,
				   struct socket *sock,
				   struct sock *parent,
				   gfp_t priority,
				   unsigned short type,
				   int kern)
{
	struct sock *sk;
	struct vsock_sock *psk;
	struct vsock_sock *vsk;

	sk = sk_alloc(net, AF_VSOCK, priority, &vsock_proto, kern);
	if (!sk)
		return NULL;

	sock_init_data(sock, sk);

	 
	if (!sock)
		sk->sk_type = type;

	vsk = vsock_sk(sk);
	vsock_addr_init(&vsk->local_addr, VMADDR_CID_ANY, VMADDR_PORT_ANY);
	vsock_addr_init(&vsk->remote_addr, VMADDR_CID_ANY, VMADDR_PORT_ANY);

	sk->sk_destruct = vsock_sk_destruct;
	sk->sk_backlog_rcv = vsock_queue_rcv_skb;
	sock_reset_flag(sk, SOCK_DONE);

	INIT_LIST_HEAD(&vsk->bound_table);
	INIT_LIST_HEAD(&vsk->connected_table);
	vsk->listener = NULL;
	INIT_LIST_HEAD(&vsk->pending_links);
	INIT_LIST_HEAD(&vsk->accept_queue);
	vsk->rejected = false;
	vsk->sent_request = false;
	vsk->ignore_connecting_rst = false;
	vsk->peer_shutdown = 0;
	INIT_DELAYED_WORK(&vsk->connect_work, vsock_connect_timeout);
	INIT_DELAYED_WORK(&vsk->pending_work, vsock_pending_work);

	psk = parent ? vsock_sk(parent) : NULL;
	if (parent) {
		vsk->trusted = psk->trusted;
		vsk->owner = get_cred(psk->owner);
		vsk->connect_timeout = psk->connect_timeout;
		vsk->buffer_size = psk->buffer_size;
		vsk->buffer_min_size = psk->buffer_min_size;
		vsk->buffer_max_size = psk->buffer_max_size;
	} else {
		vsk->trusted = ns_capable_noaudit(&init_user_ns, CAP_NET_ADMIN);
		vsk->owner = get_current_cred();
		vsk->connect_timeout = VSOCK_DEFAULT_CONNECT_TIMEOUT;
		vsk->buffer_size = VSOCK_DEFAULT_BUFFER_SIZE;
		vsk->buffer_min_size = VSOCK_DEFAULT_BUFFER_MIN_SIZE;
		vsk->buffer_max_size = VSOCK_DEFAULT_BUFFER_MAX_SIZE;
	}

	return sk;
}