[ammarfaizi2-block:dhowells/linux-fs/netfs-linked-list 25/45] ERROR: modpost: "fscache_begin_cache_operation" [fs/ceph/ceph.ko] undefined!

[kernel test robot]

tree:   https://github.com/ammarfaizi2/linux-block dhowells/linux-fs/netfs-linked-list
head:   a20ca5707a9b524115f5ded439fed1f8e552dd6b
commit: 506cacdcdfd787336db327e5f38d5a378d5998fd [25/45] fscache: Add a function to begin an cache op from a netfslib request
config: i386-randconfig-a006 (https://download.01.org/0day-ci/archive/20220428/202204282026.rHTqR6gy-lkp@xxxxxxxxx/config)
compiler: clang version 15.0.0 (https://github.com/llvm/llvm-project c59473aacce38cd7dd77eebceaf3c98c5707ab3b)
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/506cacdcdfd787336db327e5f38d5a378d5998fd
        git remote add ammarfaizi2-block https://github.com/ammarfaizi2/linux-block
        git fetch --no-tags ammarfaizi2-block dhowells/linux-fs/netfs-linked-list
        git checkout 506cacdcdfd787336db327e5f38d5a378d5998fd
        # 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=i386 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 >>, old ones prefixed by <<):

>> ERROR: modpost: "fscache_begin_cache_operation" [fs/ceph/ceph.ko] undefined!

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