[dhowells-fs:fscache-iter-2 55/62] write.c:undefined reference to `fscache_set_page_dirty'

[kernel test robot <lkp@intel.com>]

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tree:   https://git.kernel.org/pub/scm/linux/kernel/git/dhowells/linux-fs.git fscache-iter-2
head:   bf0417174cf58714bf126ecf739bdbbf300a4438
commit: a87de7a51ba8017e392a999b05480893473d366a [55/62] afs: Copy local writes to the cache when writing to the server
config: i386-randconfig-a011-20210615 (attached as .config)
compiler: gcc-9 (Debian 9.3.0-22) 9.3.0
reproduce (this is a W=1 build):
        # https://git.kernel.org/pub/scm/linux/kernel/git/dhowells/linux-fs.git/commit/?id=a87de7a51ba8017e392a999b05480893473d366a
        git remote add dhowells-fs https://git.kernel.org/pub/scm/linux/kernel/git/dhowells/linux-fs.git
        git fetch --no-tags dhowells-fs fscache-iter-2
        git checkout a87de7a51ba8017e392a999b05480893473d366a
        # save the attached .config to linux build tree
        make W=1 ARCH=i386 

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 >>):

   ld: fs/afs/write.o: in function `afs_set_page_dirty':
>> write.c:(.text+0xac9): undefined reference to `fscache_set_page_dirty'
   ld: fs/afs/write.o: in function `afs_write_back_from_locked_page':
>> write.c:(.text+0x1353): undefined reference to `__fscache_write_to_cache'
>> ld: write.c:(.text+0x13f4): undefined reference to `__fscache_clear_page_bits'

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

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