tree:   https://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs.git generic_block_fiemap_removal
head:   8f04e4d9e612244a7fea6e3db4c5f117784212e3
commit: 9432c8ae9f99993c886a7a5b4b99b8e9af491183 [3/4] hpfs: use iomap_fiemap to implement ->fiemap
config: riscv-randconfig-r035-20210726 (attached as .config)
compiler: riscv64-linux-gcc (GCC) 10.3.0
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://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs.git/commit/?id=9432c8ae9f99993c886a7a5b4b99b8e9af491183
        git remote add ext3 https://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs.git
        git fetch --no-tags ext3 generic_block_fiemap_removal
        git checkout 9432c8ae9f99993c886a7a5b4b99b8e9af491183
        # save the attached .config to linux build tree
        mkdir build_dir
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-10.3.0 make.cross O=build_dir ARCH=riscv SHELL=/bin/bash

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 >>):

   riscv64-linux-ld: fs/ext2/inode.o: in function `.L468':
   inode.c:(.text+0x2624): undefined reference to `iomap_fiemap'
   riscv64-linux-ld: fs/hpfs/file.o: in function `.L0 ':
>> file.c:(.text+0x2a4): undefined reference to `iomap_fiemap'

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