On 2017-09-05 11:37 AM, Christian König wrote: > +struct amdgpu_mn *amdgpu_mn_get(struct amdgpu_device *adev) { return NULL; } > static inline int amdgpu_mn_register(struct amdgpu_bo *bo, unsigned long addr) > { > return -ENODEV; > } > static inline void amdgpu_mn_unregister(struct amdgpu_bo *bo) {} > +void amdgpu_mn_lock(struct amdgpu_mn *mn) {} > +void amdgpu_mn_unlock(struct amdgpu_mn *mn) {} The added dummy unctions here should be static inline. Regards, Felix