[PATCH v1 12/23] erofs: implement fscache-based metadata read

[kernel test robot]

Hi Jeffle,

Thank you for the patch! Yet something to improve:

[auto build test ERROR on dhowells-fs/fscache-next]
[cannot apply to xiang-erofs/dev-test ceph-client/for-linus linus/master v5.16-rc7 next-20211224]
[If your patch is applied to the wrong git tree, kindly drop us a note.
And when submitting patch, we suggest to use '--base' as documented in
https://git-scm.com/docs/git-format-patch]

url:    https://github.com/0day-ci/linux/commits/Jeffle-Xu/fscache-erofs-fscache-based-demand-read-semantics/20211227-205742
base:   https://git.kernel.org/pub/scm/linux/kernel/git/dhowells/linux-fs.git fscache-next
config: m68k-defconfig (https://download.01.org/0day-ci/archive/20211228/202112280115.O0H8Ow1Q-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://github.com/0day-ci/linux/commit/c3453b91df3b4e89c3336453437f761d6cb6bca3
        git remote add linux-review https://github.com/0day-ci/linux
        git fetch --no-tags linux-review Jeffle-Xu/fscache-erofs-fscache-based-demand-read-semantics/20211227-205742
        git checkout c3453b91df3b4e89c3336453437f761d6cb6bca3
        # 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: "netfs_subreq_terminated" [fs/erofs/erofs.ko] undefined!
>> ERROR: modpost: "netfs_readpage" [fs/erofs/erofs.ko] undefined!

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