On 2018-05-31 06:39 PM, Leo Liu wrote: > On 05/31/2018 12:30 PM, Michel Dänzer wrote: >> On 2018-05-30 08:42 PM, Leo Liu wrote: > >>> diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c >>> b/drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c >>> index 12f0d18c6ee8..343ff115cff1 100644 >>> --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c >>> +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c >>> @@ -1217,6 +1217,49 @@ static int amdgpu_cs_submit(struct >>> amdgpu_cs_parser *p, >>>      return 0; >>>  } >>>  +/** >>> + * DOC: amdgpu_cs_ioctl >> DOC comments shouldn't be used for functions, see >> Documentation/output/doc-guide/kernel-doc.html#function-documentation >> > This doc is not for the functions, it's like something in commit message > about the details of in/out data, and what is the functionality for this > ioctl. Data structures should be documented in comments directly above their definitions, per Documentation/output/doc-guide/kernel-doc.html#structure-union-and-enumeration-documentation . What an ioctl does should be described in the function documentation comment above its implementation, as described above. -- Earthling Michel Dänzer | http://www.amd.com Libre software enthusiast | Mesa and X developer