Re: linux-next: build warnings after merge of the mm tree

David Hildenbrand
2025-03-05T10:06:04Z

On 05.03.25 10:53, David Hildenbrand wrote:
> On 05.03.25 10:42, Stephen Rothwell wrote:
>> Hi all,
>>
>> After merging the mm tree, today's linux-next build (htmldocs) produced
>> these warnings:
>>
>> include/linux/mm_types.h:482: warning: Function parameter or struct member '_usable_1' not described in 'folio'
>> include/linux/mm_types.h:482: warning: Function parameter or struct member '_mapcount_1' not described in 'folio'
>> include/linux/mm_types.h:482: warning: Function parameter or struct member '_refcount_1' not described in 'folio'
>>
>> Introduced by commit
>>
>> bbde3b621cf7 ("mm: let _folio_nr_pages overlay memcg_data in first tail page")
>>
>> from the mm-unstable branch of the mm tree.
>
> Hm, we also don't document other dummy placeholders like:
>
> * _flags_1
> * _head_1
> * __page_1
>
> So I assume there must be one way to silence these warnings, let me dig ...

Ah, likely because they are part of the "private:" section.

--
Cheers,

David / dhildenb