[xiang-erofs:dev-test 10/10] ERROR: modpost: "__umoddi3" [fs/erofs/erofs.ko] undefined!

[Gao Xiang]

On Mon, Dec 27, 2021 at 01:14:59AM +0800, kernel test robot wrote:
> tree:   https://git.kernel.org/pub/scm/linux/kernel/git/xiang/erofs.git dev-test
> head:   9204beaeb1c1bf4eeac42df048c5bd829deedfff
> commit: 9204beaeb1c1bf4eeac42df048c5bd829deedfff [10/10] erofs: add on-disk compressed tail-packing inline support
> config: m68k-mvme16x_defconfig (https://download.01.org/0day-ci/archive/20211227/202112270112.rgS0dZPa-lkp@intel.com/config)
> compiler: m68k-linux-gcc (GCC) 11.2.0
> 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
>         # https://git.kernel.org/pub/scm/linux/kernel/git/xiang/erofs.git/commit/?id=9204beaeb1c1bf4eeac42df048c5bd829deedfff
>         git remote add xiang-erofs https://git.kernel.org/pub/scm/linux/kernel/git/xiang/erofs.git
>         git fetch --no-tags xiang-erofs dev-test
>         git checkout 9204beaeb1c1bf4eeac42df048c5bd829deedfff
>         # save the config file to linux build tree
>         mkdir build_dir
>         COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-11.2.0 make.cross O=build_dir ARCH=m68k SHELL=/bin/bash
> 
> If you fix the issue, kindly add following tag as appropriate
> Reported-by: kernel test robot <lkp at intel.com>
> 
> All errors (new ones prefixed by >>, old ones prefixed by <<):
> 
> >> ERROR: modpost: "__umoddi3" [fs/erofs/erofs.ko] undefined!

I've updated rounddown to round_down since
the divisor is pow of 2.

Thanks,
Gao Xiang

> 
> ---
> 0-DAY CI Kernel Test Service, Intel Corporation
> https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org