[ammarfaizi2-block:dhowells/linux-fs/netfs-maple 26/44] output.c:undefined reference to `__fscache_begin_write_operation'

[kernel test robot]

tree:   https://github.com/ammarfaizi2/linux-block dhowells/linux-fs/netfs-maple
head:   931e50676c6598d0eda1954ead465519ff91874d
commit: 1cdfbd29bdd34acf57d11846369b44dbab7b4d3a [26/44] netfs: Dispatch write requests to process a writeback slice
config: csky-randconfig-r011-20220425 (https://download.01.org/0day-ci/archive/20220426/202204260017.dkV0wVa6-lkp@xxxxxxxxx/config)
compiler: csky-linux-gcc (GCC) 11.3.0
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/ammarfaizi2/linux-block/commit/1cdfbd29bdd34acf57d11846369b44dbab7b4d3a
        git remote add ammarfaizi2-block https://github.com/ammarfaizi2/linux-block
        git fetch --no-tags ammarfaizi2-block dhowells/linux-fs/netfs-maple
        git checkout 1cdfbd29bdd34acf57d11846369b44dbab7b4d3a
        # save the config file
        mkdir build_dir && cp config build_dir/.config
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-11.3.0 make.cross W=1 O=build_dir ARCH=csky SHELL=/bin/bash

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

All errors (new ones prefixed by >>):

   csky-linux-ld: fs/netfs/output.o: in function `netfs_set_up_write_to_cache':
>> output.c:(.text+0x932): undefined reference to `__fscache_begin_write_operation'
>> csky-linux-ld: output.c:(.text+0x96c): undefined reference to `__fscache_begin_write_operation'

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