session_op32
session_op_from_32((struct session_op32 *)data32, &thunk.sopc);
#define CIOCGSESSION32 _IOWR('c', 101, struct session_op32)
session_op_from_32(const struct session_op32 *from, struct session2_op *to)
session_op_from_32((const struct session_op32 *)from, to);
session_op_to_32(const struct session2_op *from, struct session_op32 *to)
session_op_to_32(from, (struct session_op32 *)to);