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Date: Mon, 20 Jun 2022 16:42:46 +1000
From: Stephen Rothwell <sfr@...b.auug.org.au>
To: Andrew Morton <akpm@...ux-foundation.org>
Cc: "Matthew Wilcox (Oracle)" <willy@...radead.org>,
Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
Linux Next Mailing List <linux-next@...r.kernel.org>,
Muchun Song <songmuchun@...edance.com>,
Oscar Salvador <osalvador@...e.de>
Subject: linux-next: build failures after merge of the mm tree
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
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