Hi all, After merging the mm tree, today's linux-next build (sparc defconfig) failed like this: In file included from include/linux/page_ext.h:7, from include/linux/mm.h:22, from fs/sysfs/file.c:18: include/linux/stackdepot.h:59:39: error: 'CONFIG_STACKDEPOT_MAX_FRAMES' undeclared here (not in a function) 59 | unsigned long entries[CONFIG_STACKDEPOT_MAX_FRAMES]; /* Frames */ | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~ (and many more) Caused by commit 18d4230bb372 ("lib/stackdepot: move stack_record struct definition into the header") from the mm-unstable branch of the mm tree. $ grep CONFIG_STACKDEPOT .config $ I have reverted the following commits for today: 7e56cf9a7f10 ("mm: add swappiness= arg to memory.reclaim") 6290011d1ce1 ("mm: add defines for min/max swappiness") afb37edbd1e3 ("mm: optimization on page allocation when CMA enabled") 0b222ac0b19c ("userfaultfd: use per-vma locks in userfaultfd operations") f8b7d8e37cb3 ("userfaultfd: protect mmap_changing with rw_sem in userfaulfd_ctx") cd8df983e066 ("userfaultfd: move userfaultfd_ctx struct to header file") 292f31cdb470 ("mm,page_owner: update Documentation regarding page_owner_stacks") 76d2da5f4805 ("mm,page_owner: filter out stacks by a threshold") 37781739c4ad ("mm,page_owner: display all stacks and their count") 525a88caf59c ("mm,page_owner: implement the tracking of the stacks count") 18d4230bb372 ("lib/stackdepot: move stack_record struct definition into the header") (from 18d4230bb372 to the end of mm-unstable) -- Cheers, Stephen Rothwell
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