Re: [PATCH] kernel-doc: add support for handling global variables

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On 9/9/25 4:50 PM, Randy Dunlap wrote:
> 
> 
> On 9/9/25 4:49 PM, Randy Dunlap wrote:
>>
>>
>> On 9/9/25 4:09 PM, Mauro Carvalho Chehab wrote:
>>> Em Tue, 9 Sep 2025 14:06:43 -0700
>>> Randy Dunlap <rdunlap@xxxxxxxxxxxxx> escreveu:
>>>
>>>> On 9/9/25 12:58 PM, Mauro Carvalho Chehab wrote:
>>>>> Em Tue, 9 Sep 2025 00:27:20 -0700
>>>>> Randy Dunlap <rdunlap@xxxxxxxxxxxxx> escreveu:
>>>
>>>>>> +.. kernel-doc:: init/kdoc-globals-test.c
>>>>>> +   :identifiers:
>>>>>>
>>>>>> The html output says
>>>>>> "Kernel Globals"
>>>>>> but nothing else.  
>>>>>
>>>>> I usually don't add :identifiers: on kernel-doc entries. If you use
>>>>> identifiers, you need to explicitly tell what symbols you want.  
>>>>
>>>> Well, it worked/works without using having any identifiers listed, and
>>>> the docs in Documentation/doc-guide/kernel-doc.rst says that they are
>>>> optional:
>>>>
>>>> identifiers: *[ function/type ...]*
>>>>   Include documentation for each *function* and *type* in *source*.
>>>>   If no *function* is specified, the documentation for all functions
>>>>   and types in the *source* will be included.
>>>>   *type* can be a struct, union, enum, or typedef identifier.
>>>
>>> Hmm.. looking the entire logic:
>>>
>>>         elif 'identifiers' in self.options:
>>>             identifiers = self.options.get('identifiers').split()
>>>             if identifiers:
>>>                 for i in identifiers:
>>>                     i = i.rstrip("\\").strip()
>>>                     if not i:
>>>                         continue
>>>
>>>                     cmd += ['-function', i]
>>>                     self.msg_args["symbol"].append(i)
>>>             else:
>>>                 cmd += ['-no-doc-sections']
>>>                 self.msg_args["no_doc_sections"] = True
>>>
>>> I suspect that an empty identifier could be raising an exception.

and it's being caught and ignored (not printed)?

>>> The right logic should be, instead:
>>>
>>> -        elif 'identifiers' in self.options:
>>> -            identifiers = self.options.get('identifiers').split()
>>> -            if identifiers:
>>> -                for i in identifiers:
>>> +        elif 'identifiers' in self.options:
>>> +            identifiers = self.options.get('identifiers')
>>> +            if identifiers:
>>> +                for i in identifiers.split():
>>>
>>> (tests needed)
>>
>> Sheesh, I can't find that code so that I can patch it.
>> (in today's linux-next 20250909)
> 
> oops, I was looking in scripts/ and not in Documentation/.
> got it.
> 
>> Anyway, does this take away something that currently works?

The output looks the same with this patch AFAICT.
-- 
~Randy





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