amdgpu_file_to_fpriv
int amdgpu_file_to_fpriv(struct file *filp, struct amdgpu_fpriv **fpriv);
r = amdgpu_file_to_fpriv(fd_file(f), &fpriv);
r = amdgpu_file_to_fpriv(fd_file(f), &fpriv);
if (unlikely(amdgpu_file_to_fpriv(pdd->drm_file, &drv_priv))) {
ret = amdgpu_file_to_fpriv(drm_file, &drv_priv);