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Message-ID: <a35096d5-99e7-6b69-c959-1136d511a0ff@gmail.com>
Date: Mon, 29 Mar 2021 20:40:36 +0530
From: Aditya Srivastava <yashsri421@...il.com>
To: Jonathan Corbet <corbet@....net>
Cc: lukas.bulwahn@...il.com,
linux-kernel-mentees@...ts.linuxfoundation.org,
linux-doc@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] scripts: kernel-doc: add warning for comment not
following kernel-doc syntax
On 29/3/21 7:26 pm, Jonathan Corbet wrote:
> Aditya Srivastava <yashsri421@...il.com> writes:
>
>> Currently, kernel-doc start parsing the comment as a kernel-doc comment if
>> it starts with '/**', but does not take into account if the content inside
>> the comment too, adheres with the expected format.
>> This results in unexpected and unclear warnings for the user.
>>
>> E.g., running scripts/kernel-doc -none mm/memcontrol.c emits:
>> "mm/memcontrol.c:961: warning: expecting prototype for do not fallback to current(). Prototype was for get_mem_cgroup_from_current() instead"
>>
>> Here kernel-doc parses the corresponding comment as a kernel-doc comment
>> and expects prototype for it in the next lines, and as a result causing
>> this warning.
>>
>> Provide a clearer warning message to the users regarding the same, if the
>> content inside the comment does not follow the kernel-doc expected format.
>>
>> Signed-off-by: Aditya Srivastava <yashsri421@...il.com>
>> ---
>> scripts/kernel-doc | 17 +++++++++++++----
>> 1 file changed, 13 insertions(+), 4 deletions(-)
>
> This is definitely a capability we want, but I really don't think that
> we can turn it on by default - for now. Experience shows that if you
> create a blizzard of warnings, nobody sees any of them. How many
> warnings does this add to a full docs build?
>
Hi Jonathan, here's the diff I have created for the warnings before
and after the changes:
https://github.com/AdityaSrivast/kernel-tasks/blob/master/random/kernel-doc/kernel_doc_comment_syntax.txt
Around ~1320 new warnings of this type are added to the kernel tree,
and around ~1580 warnings are removed.
Thanks
Aditya
> For now I think we need a flag to turn this warning on, which perhaps
> can be set for a W=1 build.
> > Thanks,
>
> jon
>
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