Re: [PATCH v8 2/4] userfaultfd: split mwriteprotect_range()

From: kernel test robot
Date: Tue Jan 24 2023 - 05:24:05 EST

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