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

David Hildenbrand
2025-03-05T09:53:52Z

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 ...

--
Cheers,

David / dhildenb