Hi Muhammad, Thank you for the patch! Yet something to improve: [auto build test ERROR on shuah-kselftest/next] [also build test ERROR on shuah-kselftest/fixes linus/master v6.2-rc5] [cannot apply to next-20230124] [If your patch is applied to the wrong git tree, kindly drop us a note. And when submitting patch, we suggest to use '--base' as documented in https://git-scm.com/docs/git-format-patch#_base_tree_information] url: https://github.com/intel-lab-lkp/linux/commits/Muhammad-Usama-Anjum/userfaultfd-Add-UFFD-WP-Async-support/20230124-164601 base: https://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest.git next patch link: https://lore.kernel.org/r/20230124084323.1363825-3-usama.anjum%40collabora.com patch subject: [PATCH v8 2/4] userfaultfd: split mwriteprotect_range() config: i386-tinyconfig (https://download.01.org/0day-ci/archive/20230124/202301241831.AYRPKsH5-lkp@xxxxxxxxx/config) compiler: gcc-11 (Debian 11.3.0-8) 11.3.0 reproduce (this is a W=1 build): # https://github.com/intel-lab-lkp/linux/commit/2806717805539421b82e971890ebbaf83b3deee4 git remote add linux-review https://github.com/intel-lab-lkp/linux git fetch --no-tags linux-review Muhammad-Usama-Anjum/userfaultfd-Add-UFFD-WP-Async-support/20230124-164601 git checkout 2806717805539421b82e971890ebbaf83b3deee4 # save the config file mkdir build_dir && cp config build_dir/.config make W=1 O=build_dir ARCH=i386 olddefconfig make W=1 O=build_dir ARCH=i386 SHELL=/bin/bash If you fix the issue, kindly add following tag where applicable | Reported-by: kernel test robot <lkp@xxxxxxxxx> All errors (new ones prefixed by >>): ld: arch/x86/mm/init_32.o: in function `userfaultfd_wp_async': init_32.c:(.text+0x0): multiple definition of `userfaultfd_wp_async'; arch/x86/kernel/setup.o:setup.c:(.text+0x3): first defined here ld: arch/x86/mm/init_32.o: in function `wp_range_async': >> init_32.c:(.text+0x3): multiple definition of `wp_range_async'; arch/x86/kernel/setup.o:setup.c:(.text+0x6): first defined here ld: arch/x86/mm/fault.o: in function `userfaultfd_wp_async': fault.c:(.text+0x8cd): multiple definition of `userfaultfd_wp_async'; arch/x86/kernel/setup.o:setup.c:(.text+0x3): first defined here ld: arch/x86/mm/fault.o: in function `wp_range_async': fault.c:(.text+0x8d0): multiple definition of `wp_range_async'; arch/x86/kernel/setup.o:setup.c:(.text+0x6): first defined here ld: arch/x86/mm/pgtable.o: in function `userfaultfd_wp_async': pgtable.c:(.text+0x0): multiple definition of `userfaultfd_wp_async'; arch/x86/kernel/setup.o:setup.c:(.text+0x3): first defined here ld: arch/x86/mm/pgtable.o: in function `wp_range_async': pgtable.c:(.text+0x3): multiple definition of `wp_range_async'; arch/x86/kernel/setup.o:setup.c:(.text+0x6): first defined here ld: kernel/fork.o: in function `userfaultfd_wp_async': fork.c:(.text+0x5bb): multiple definition of `userfaultfd_wp_async'; arch/x86/kernel/setup.o:setup.c:(.text+0x3): first defined here ld: kernel/fork.o: in function `wp_range_async': fork.c:(.text+0x5be): multiple definition of `wp_range_async'; arch/x86/kernel/setup.o:setup.c:(.text+0x6): first defined here ld: kernel/sysctl.o: in function `userfaultfd_wp_async': sysctl.c:(.text+0x0): multiple definition of `userfaultfd_wp_async'; arch/x86/kernel/setup.o:setup.c:(.text+0x3): first defined here ld: kernel/sysctl.o: in function `wp_range_async': sysctl.c:(.text+0x3): multiple definition of `wp_range_async'; arch/x86/kernel/setup.o:setup.c:(.text+0x6): first defined here ld: kernel/sys.o: in function `userfaultfd_wp_async': sys.c:(.text+0xb5e): multiple definition of `userfaultfd_wp_async'; arch/x86/kernel/setup.o:setup.c:(.text+0x3): first defined here ld: kernel/sys.o: in function `wp_range_async': sys.c:(.text+0xb61): multiple definition of `wp_range_async'; arch/x86/kernel/setup.o:setup.c:(.text+0x6): first defined here ld: kernel/events/core.o: in function `userfaultfd_wp_async': core.c:(.text+0x404c): multiple definition of `userfaultfd_wp_async'; arch/x86/kernel/setup.o:setup.c:(.text+0x3): first defined here ld: kernel/events/core.o: in function `wp_range_async': core.c:(.text+0x404f): multiple definition of `wp_range_async'; arch/x86/kernel/setup.o:setup.c:(.text+0x6): first defined here ld: mm/filemap.o: in function `userfaultfd_wp_async': filemap.c:(.text+0x7c5): multiple definition of `userfaultfd_wp_async'; arch/x86/kernel/setup.o:setup.c:(.text+0x3): first defined here ld: mm/filemap.o: in function `wp_range_async': filemap.c:(.text+0x7c8): multiple definition of `wp_range_async'; arch/x86/kernel/setup.o:setup.c:(.text+0x6): first defined here ld: mm/page-writeback.o: in function `userfaultfd_wp_async': page-writeback.c:(.text+0xb69): multiple definition of `userfaultfd_wp_async'; arch/x86/kernel/setup.o:setup.c:(.text+0x3): first defined here ld: mm/page-writeback.o: in function `wp_range_async': page-writeback.c:(.text+0xb6c): multiple definition of `wp_range_async'; arch/x86/kernel/setup.o:setup.c:(.text+0x6): first defined here ld: mm/folio-compat.o: in function `userfaultfd_wp_async': folio-compat.c:(.text+0xc): multiple definition of `userfaultfd_wp_async'; arch/x86/kernel/setup.o:setup.c:(.text+0x3): first defined here ld: mm/folio-compat.o: in function `wp_range_async': folio-compat.c:(.text+0xf): multiple definition of `wp_range_async'; arch/x86/kernel/setup.o:setup.c:(.text+0x6): first defined here ld: mm/readahead.o: in function `userfaultfd_wp_async': readahead.c:(.text+0x128): multiple definition of `userfaultfd_wp_async'; arch/x86/kernel/setup.o:setup.c:(.text+0x3): first defined here ld: mm/readahead.o: in function `wp_range_async': readahead.c:(.text+0x12b): multiple definition of `wp_range_async'; arch/x86/kernel/setup.o:setup.c:(.text+0x6): first defined here ld: mm/swap.o: in function `userfaultfd_wp_async': swap.c:(.text+0x6e5): multiple definition of `userfaultfd_wp_async'; arch/x86/kernel/setup.o:setup.c:(.text+0x3): first defined here ld: mm/swap.o: in function `wp_range_async': swap.c:(.text+0x6e8): multiple definition of `wp_range_async'; arch/x86/kernel/setup.o:setup.c:(.text+0x6): first defined here ld: mm/vmscan.o: in function `userfaultfd_wp_async': vmscan.c:(.text+0xf96): multiple definition of `userfaultfd_wp_async'; arch/x86/kernel/setup.o:setup.c:(.text+0x3): first defined here ld: mm/vmscan.o: in function `wp_range_async': vmscan.c:(.text+0xf99): multiple definition of `wp_range_async'; arch/x86/kernel/setup.o:setup.c:(.text+0x6): first defined here ld: mm/shmem.o: in function `userfaultfd_wp_async': shmem.c:(.text+0x91): multiple definition of `userfaultfd_wp_async'; arch/x86/kernel/setup.o:setup.c:(.text+0x3): first defined here ld: mm/shmem.o: in function `wp_range_async': shmem.c:(.text+0x94): multiple definition of `wp_range_async'; arch/x86/kernel/setup.o:setup.c:(.text+0x6): first defined here ld: mm/util.o: in function `userfaultfd_wp_async': util.c:(.text+0x2b): multiple definition of `userfaultfd_wp_async'; arch/x86/kernel/setup.o:setup.c:(.text+0x3): first defined here ld: mm/util.o: in function `wp_range_async': util.c:(.text+0x2e): multiple definition of `wp_range_async'; arch/x86/kernel/setup.o:setup.c:(.text+0x6): first defined here ld: mm/vmstat.o: in function `userfaultfd_wp_async': vmstat.c:(.text+0x0): multiple definition of `userfaultfd_wp_async'; arch/x86/kernel/setup.o:setup.c:(.text+0x3): first defined here ld: mm/vmstat.o: in function `wp_range_async': vmstat.c:(.text+0x3): multiple definition of `wp_range_async'; arch/x86/kernel/setup.o:setup.c:(.text+0x6): first defined here ld: mm/compaction.o: in function `userfaultfd_wp_async': compaction.c:(.text+0x0): multiple definition of `userfaultfd_wp_async'; arch/x86/kernel/setup.o:setup.c:(.text+0x3): first defined here ld: mm/compaction.o: in function `wp_range_async': compaction.c:(.text+0x3): multiple definition of `wp_range_async'; arch/x86/kernel/setup.o:setup.c:(.text+0x6): first defined here ld: mm/workingset.o: in function `userfaultfd_wp_async': workingset.c:(.text+0x181): multiple definition of `userfaultfd_wp_async'; arch/x86/kernel/setup.o:setup.c:(.text+0x3): first defined here ld: mm/workingset.o: in function `wp_range_async': workingset.c:(.text+0x184): multiple definition of `wp_range_async'; arch/x86/kernel/setup.o:setup.c:(.text+0x6): first defined here ld: mm/debug.o: in function `userfaultfd_wp_async': debug.c:(.text+0xb9): multiple definition of `userfaultfd_wp_async'; arch/x86/kernel/setup.o:setup.c:(.text+0x3): first defined here ld: mm/debug.o: in function `wp_range_async': debug.c:(.text+0xbc): multiple definition of `wp_range_async'; arch/x86/kernel/setup.o:setup.c:(.text+0x6): first defined here ld: mm/gup.o: in function `userfaultfd_wp_async': gup.c:(.text+0x2ae): multiple definition of `userfaultfd_wp_async'; arch/x86/kernel/setup.o:setup.c:(.text+0x3): first defined here ld: mm/gup.o: in function `wp_range_async': gup.c:(.text+0x2b1): multiple definition of `wp_range_async'; arch/x86/kernel/setup.o:setup.c:(.text+0x6): first defined here ld: mm/memory.o: in function `userfaultfd_wp_async': memory.c:(.text+0x737): multiple definition of `userfaultfd_wp_async'; arch/x86/kernel/setup.o:setup.c:(.text+0x3): first defined here ld: mm/memory.o: in function `wp_range_async': memory.c:(.text+0x73a): multiple definition of `wp_range_async'; arch/x86/kernel/setup.o:setup.c:(.text+0x6): first defined here ld: mm/mincore.o: in function `userfaultfd_wp_async': mincore.c:(.text+0x149): multiple definition of `userfaultfd_wp_async'; arch/x86/kernel/setup.o:setup.c:(.text+0x3): first defined here ld: mm/mincore.o: in function `wp_range_async': mincore.c:(.text+0x14c): multiple definition of `wp_range_async'; arch/x86/kernel/setup.o:setup.c:(.text+0x6): first defined here ld: mm/mlock.o: in function `userfaultfd_wp_async': mlock.c:(.text+0x90e): multiple definition of `userfaultfd_wp_async'; arch/x86/kernel/setup.o:setup.c:(.text+0x3): first defined here ld: mm/mlock.o: in function `wp_range_async': mlock.c:(.text+0x911): multiple definition of `wp_range_async'; arch/x86/kernel/setup.o:setup.c:(.text+0x6): first defined here ld: mm/mmap.o: in function `userfaultfd_wp_async': mmap.c:(.text+0x4d8): multiple definition of `userfaultfd_wp_async'; arch/x86/kernel/setup.o:setup.c:(.text+0x3): first defined here ld: mm/mmap.o: in function `wp_range_async': mmap.c:(.text+0x4db): multiple definition of `wp_range_async'; arch/x86/kernel/setup.o:setup.c:(.text+0x6): first defined here ld: mm/mmu_gather.o: in function `userfaultfd_wp_async': mmu_gather.c:(.text+0x29): multiple definition of `userfaultfd_wp_async'; arch/x86/kernel/setup.o:setup.c:(.text+0x3): first defined here ld: mm/mmu_gather.o: in function `wp_range_async': mmu_gather.c:(.text+0x2c): multiple definition of `wp_range_async'; arch/x86/kernel/setup.o:setup.c:(.text+0x6): first defined here ld: mm/mprotect.o: in function `userfaultfd_wp_async': mprotect.c:(.text+0x45): multiple definition of `userfaultfd_wp_async'; arch/x86/kernel/setup.o:setup.c:(.text+0x3): first defined here ld: mm/mprotect.o: in function `wp_range_async': mprotect.c:(.text+0x48): multiple definition of `wp_range_async'; arch/x86/kernel/setup.o:setup.c:(.text+0x6): first defined here -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests
