Re: [PATCH v2] HID: uclogic: properly format kernel-doc comment for hid_dbg() wrappers

[Randy Dunlap <rdunlap@infradead.org>]

On 6/1/22 00:27, Bagas Sanjaya wrote:
>> One note (nit) below:
>>
>>>  drivers/hid/hid-uclogic-params.c | 24 ++++++++++++++----------
>>>  1 file changed, 14 insertions(+), 10 deletions(-)
>>>
>>> diff --git a/drivers/hid/hid-uclogic-params.c b/drivers/hid/hid-uclogic-params.c
>>> index db838f16282d64..647bbd3e000e2f 100644
>>> --- a/drivers/hid/hid-uclogic-params.c
>>> +++ b/drivers/hid/hid-uclogic-params.c
>>> @@ -23,11 +23,11 @@
>>>  /**
>>>   * uclogic_params_pen_inrange_to_str() - Convert a pen in-range reporting type
>>>   *                                       to a string.
>>> - *
>>>   * @inrange:	The in-range reporting type to convert.
>>>   *
>>> - * Returns:
>>> - *	The string representing the type, or NULL if the type is unknown.
>>> + * Return:
>>> + * * The string representing the type, or
>>> + * * NULL if the type is unknown.
>>
>>         %NULL
>> would be better here, but not required.
>>
> 
> Hi Randy,
> 
> I don't see %NULL in Documentation/ (I git-grep-ed it but none found).
> What should I do when I have to explain NULL in Return: section of
> kernel-doc comment?

In Documentation/doc-guide/kernel-doc.rst, section Highlights and cross-references:

``%CONST``
  Name of a constant. (No cross-referencing, just formatting.)

So '%' before a constant value just helps with the generated formatting
of the output. It's just "prettier." No big deal.

-- 
~Randy