[kbuild-all] Re: [willy-pagecache:for-next 58/85] mm/folio-compat.c:181:9: error: implicit declaration of function 'folio_mlock'; did you mean 'folio_lock'?

commit: 2cefeaf011db4a95ecb515cc2ca61d091a792ac1 [58/85] mm/rmap: Turn page_mlock() into folio_mlock() mm/folio-compat.c:169:6: warning: no previous prototype for 'clear_page_mlock' [-Wmissing-prototypes] 169 | void clear_page_mlock(struct page *page) | ^~~~~~~~~~~~~~~~ mm/folio-compat.c:174:6: error: redefinition of 'mlock_vma_page' 174 | void mlock_vma_page(struct page *page) | ^~~~~~~~~~~~~~ In file included from mm/folio-compat.c:11: mm/internal.h:503:20: note: previous definition of 'mlock_vma_page' with type 'void(struct page *)' 503 | static inline void mlock_vma_page(struct page *page) { } | ^~~~~~~~~~~~~~ mm/folio-compat.c: In function 'mlock_vma_page': mm/folio-compat.c:176:9: error: implicit declaration of function 'mlock_vma_folio'; did you mean 'mlock_vma_page'? [-Werror=implicit-function-declaration] 176 | mlock_vma_folio(page_folio(page)); | ^~~~~~~~~~~~~~~ | mlock_vma_page mm/folio-compat.c: At top level: mm/folio-compat.c:179:6: warning: no previous prototype for 'page_mlock' [-Wmissing-prototypes] 179 | void page_mlock(struct page *page) | ^~~~~~~~~~ mm/folio-compat.c: In function 'page_mlock': >> mm/folio-compat.c:181:9: error: implicit declaration of function 'folio_mlock'; did you mean 'folio_lock'? [-Werror=implicit-function-declaration] 181 | folio_mlock(page_folio(page)); | ^~~~~~~~~~~ | folio_lock cc1: some warnings being treated as errors