ib_umad_device
struct ib_umad_device *umad_dev,
struct ib_umad_device *umad_dev;
struct ib_umad_device *umad_dev = client_data;
struct ib_umad_device *dev =
container_of(kobj, struct ib_umad_device, kobj);
struct ib_umad_device *umad_dev;
struct ib_umad_device *dev = file->port->umad_dev;