Hi Syed,

I love your patch! Yet something to improve:

[auto build test ERROR on bbe2ba04c5a92a49db8a42c850a5a2f6481e47eb]

url:    https://github.com/0day-ci/linux/commits/Syed-Nayyar-Waris/Introduce-the-for_each_set_clump-macro/20201226-144926
base:    bbe2ba04c5a92a49db8a42c850a5a2f6481e47eb
config: arm-allyesconfig (attached as .config)
compiler: arm-linux-gnueabi-gcc (GCC) 9.3.0
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://github.com/0day-ci/linux/commit/18673b78ae76b6db62549f983d83455b18d31865
        git remote add linux-review https://github.com/0day-ci/linux
        git fetch --no-tags linux-review Syed-Nayyar-Waris/Introduce-the-for_each_set_clump-macro/20201226-144926
        git checkout 18673b78ae76b6db62549f983d83455b18d31865
        # save the attached .config to linux build tree
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross ARCH=arm 

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

All errors (new ones prefixed by >>):

   arm-linux-gnueabi-ld: lib/test_bitmap.o: in function `test_bitmap_init':
   test_bitmap.c:(.init.text+0x1f24): undefined reference to `find_next_clump'
>> arm-linux-gnueabi-ld: test_bitmap.c:(.init.text+0x2038): undefined reference to `find_next_clump'

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