linux/drivers/gpu/drm/nouveau/include/nvkm/core/oclass.h

#ifndef __NVKM_OCLASS_H__
#define __NVKM_OCLASS_H__
#include <core/os.h>
#include <core/debug.h>
struct nvkm_oclass;
struct nvkm_object;

struct nvkm_sclass { … };

struct nvkm_oclass { … };
#endif