Re: [PATCH PoC 5/9] btrfs: scrub: add helpers to fulfill csum/extent_generation

[kernel test robot <lkp@intel.com>]

Hi Qu,

Thank you for the patch! Yet something to improve:

[auto build test ERROR on kdave/for-next]
[also build test ERROR on next-20220901]
[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/Qu-Wenruo/btrfs-scrub-introduce-a-new-family-of-ioctl-scrub_fs/20220903-162128
base:   https://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux.git for-next
config: arm-randconfig-r031-20220903 (https://download.01.org/0day-ci/archive/20220903/202209032021.ryUdsh1f-lkp@intel.com/config)
compiler: clang version 16.0.0 (https://github.com/llvm/llvm-project c55b41d5199d2394dd6cdb8f52180d8b81d809d4)
reproduce (this is a W=1 build):
        wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
        chmod +x ~/bin/make.cross
        # install arm cross compiling tool for clang build
        # apt-get install binutils-arm-linux-gnueabi
        # https://github.com/intel-lab-lkp/linux/commit/02fbe0e7c98836561e983171c7cd0bcb8990915b
        git remote add linux-review https://github.com/intel-lab-lkp/linux
        git fetch --no-tags linux-review Qu-Wenruo/btrfs-scrub-introduce-a-new-family-of-ioctl-scrub_fs/20220903-162128
        git checkout 02fbe0e7c98836561e983171c7cd0bcb8990915b
        # save the config file
        mkdir build_dir && cp config build_dir/.config
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=arm SHELL=/bin/bash

If you fix the issue, kindly add following tag where applicable
Reported-by: kernel test robot <lkp@intel.com>

All errors (new ones prefixed by >>, old ones prefixed by <<):

>> ERROR: modpost: "__aeabi_uldivmod" [fs/btrfs/btrfs.ko] undefined!

-- 
0-DAY CI Kernel Test Service
https://01.org/lkp