Thanks for your report. It is fixed in thread [1]. https://lore.kernel.org/all/20220619133851.68184-3-songmuchun@xxxxxxxxxxxxx/ [1] On Mon, Jun 20, 2022 at 2:42 PM Stephen Rothwell <sfr@xxxxxxxxxxxxxxxx> wrote: > > Hi all, > > After merging the mm tree, today's linux-next build (x86_64 allnoconfig) > failed like this: > > In file included from arch/x86/include/asm/page.h:86, > from arch/x86/include/asm/thread_info.h:12, > from include/linux/thread_info.h:60, > from arch/x86/include/asm/preempt.h:7, > from include/linux/preempt.h:78, > from include/linux/spinlock.h:55, > from include/linux/mmzone.h:8, > from include/linux/gfp.h:6, > from include/linux/slab.h:15, > from include/linux/crypto.h:20, > from arch/x86/kernel/asm-offsets.c:9: > include/linux/mm.h: In function 'destroy_large_folio': > include/asm-generic/memory_model.h:35:21: error: implicit declaration of function 'page_to_section'; did you mean 'present_section'? [-Werror=implicit-function-declaration] > 35 | int __sec = page_to_section(__pg); \ > | ^~~~~~~~~~~~~~~ > include/asm-generic/memory_model.h:40:32: note: in definition of macro '__pfn_to_page' > 40 | ({ unsigned long __pfn = (pfn); \ > | ^~~ > include/asm-generic/memory_model.h:52:21: note: in expansion of macro '__page_to_pfn' > 52 | #define page_to_pfn __page_to_pfn > | ^~~~~~~~~~~~~ > include/linux/mm.h:214:38: note: in expansion of macro 'page_to_pfn' > 214 | #define nth_page(page,n) pfn_to_page(page_to_pfn((page)) + (n)) > | ^~~~~~~~~~~ > include/linux/page-flags.h:312:33: note: in expansion of macro 'nth_page' > 312 | #define folio_page(folio, n) nth_page(&(folio)->page, n) > | ^~~~~~~~ > include/linux/mm.h:928:38: note: in expansion of macro 'folio_page' > 928 | enum compound_dtor_id dtor = folio_page(folio, 1)->compound_dtor; > | ^~~~~~~~~~ > In file included from include/linux/memcontrol.h:20, > from include/linux/swap.h:9, > from include/linux/suspend.h:5, > from arch/x86/kernel/asm-offsets.c:13: > include/linux/mm.h: At top level: > include/linux/mm.h:1556:29: error: conflicting types for 'page_to_section'; have 'long unsigned int(const struct page *)' > 1556 | static inline unsigned long page_to_section(const struct page *page) > | ^~~~~~~~~~~~~~~ > In file included from arch/x86/include/asm/page.h:86, > from arch/x86/include/asm/thread_info.h:12, > from include/linux/thread_info.h:60, > from arch/x86/include/asm/preempt.h:7, > from include/linux/preempt.h:78, > from include/linux/spinlock.h:55, > from include/linux/mmzone.h:8, > from include/linux/gfp.h:6, > from include/linux/slab.h:15, > from include/linux/crypto.h:20, > from arch/x86/kernel/asm-offsets.c:9: > include/asm-generic/memory_model.h:35:21: note: previous implicit declaration of 'page_to_section' with type 'int()' > 35 | int __sec = page_to_section(__pg); \ > | ^~~~~~~~~~~~~~~ > include/asm-generic/memory_model.h:40:32: note: in definition of macro '__pfn_to_page' > 40 | ({ unsigned long __pfn = (pfn); \ > | ^~~ > include/asm-generic/memory_model.h:52:21: note: in expansion of macro '__page_to_pfn' > 52 | #define page_to_pfn __page_to_pfn > | ^~~~~~~~~~~~~ > include/linux/mm.h:214:38: note: in expansion of macro 'page_to_pfn' > 214 | #define nth_page(page,n) pfn_to_page(page_to_pfn((page)) + (n)) > | ^~~~~~~~~~~ > include/linux/page-flags.h:312:33: note: in expansion of macro 'nth_page' > 312 | #define folio_page(folio, n) nth_page(&(folio)->page, n) > | ^~~~~~~~ > include/linux/mm.h:928:38: note: in expansion of macro 'folio_page' > 928 | enum compound_dtor_id dtor = folio_page(folio, 1)->compound_dtor; > | ^~~~~~~~~~ > cc1: some warnings being treated as errors > > Caused by commit (I think) > > d3b90b76e101 ("mm: convert destroy_compound_page() to destroy_large_folio()") > > I have reverted these commits fot today: > > 56629699b3dd mm/swap: convert __delete_from_swap_cache() to a folio > e5085f2cc241 mm/swap: convert delete_from_swap_cache() to take a folio > 169f02f4efb1 mm: convert page_swap_flags to folio_swap_flags > d3b90b76e101 mm: convert destroy_compound_page() to destroy_large_folio() > > Then I got: > > mm/hugetlb_vmemmap.c: In function 'vmemmap_optimizable_pages': > mm/hugetlb_vmemmap.c:110:24: error: implicit declaration of function 'sparse_decode_mem_map' [-Werror=implicit-function-declaration] > 110 | vmemmap_page = sparse_decode_mem_map(ms->section_mem_map, > | ^~~~~~~~~~~~~~~~~~~~~ > mm/hugetlb_vmemmap.c:110:22: warning: assignment to 'struct page *' from 'int' makes pointer from integer without a cast [-Wint-conversion] > 110 | vmemmap_page = _sparsedecode_mem_map(ms->section_mem_map, > | ^ > cc1: some warnings being treated as errors > > from my arm64 defconfig build. > > Caused by commit > > 10a768735470 ("mm: memory_hotplug: make hugetlb_optimize_vmemmap compatible with memmap_on_memory") > > So I gave up and used the mm tree from next-20220617 for today. > -- > Cheers, > Stephen Rothwell
