[trondmy-nfs-2.6:testing 43/47] xxhash_generic.c:undefined reference to `xxh64'

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

tree:   git://git.linux-nfs.org/projects/trondmy/nfs-2.6.git testing
head:   18819db1468b966c49a5b95dade10d5e25216b83
commit: aa6b34ca6840595e2d817de4c75534966cb49ba3 [43/47] NFS: Convert readdir page cache to use a cookie based index
config: nios2-defconfig (https://download.01.org/0day-ci/archive/20220225/202202250739.uOaDW2T2-lkp@intel.com/config)
compiler: nios2-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
        git remote add trondmy-nfs-2.6 git://git.linux-nfs.org/projects/trondmy/nfs-2.6.git
        git fetch --no-tags trondmy-nfs-2.6 testing
        git checkout aa6b34ca6840595e2d817de4c75534966cb49ba3
        # 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=nios2 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 >>):

   nios2-linux-ld: fs/nfs/dir.o: in function `nfs_readdir_page_get_locked':
   dir.c:(.text+0x2998): undefined reference to `xxh32'
   dir.c:(.text+0x2998): relocation truncated to fit: R_NIOS2_CALL26 against `xxh32'
   nios2-linux-ld: crypto/xxhash_generic.o: in function `xxhash64_digest':
>> xxhash_generic.c:(.text+0x98): undefined reference to `xxh64'
   xxhash_generic.c:(.text+0x98): relocation truncated to fit: R_NIOS2_CALL26 against `xxh64'
   nios2-linux-ld: crypto/xxhash_generic.o: in function `xxhash64_final':
>> xxhash_generic.c:(.text+0xfc): undefined reference to `xxh64_digest'
   xxhash_generic.c:(.text+0xfc): relocation truncated to fit: R_NIOS2_CALL26 against `xxh64_digest'
   nios2-linux-ld: crypto/xxhash_generic.o: in function `xxhash64_update':
>> xxhash_generic.c:(.text+0x158): undefined reference to `xxh64_update'
   xxhash_generic.c:(.text+0x158): relocation truncated to fit: R_NIOS2_CALL26 against `xxh64_update'
   nios2-linux-ld: crypto/xxhash_generic.o: in function `xxhash64_init':
>> xxhash_generic.c:(.text+0x184): undefined reference to `xxh64_reset'
   xxhash_generic.c:(.text+0x184): relocation truncated to fit: R_NIOS2_CALL26 against `xxh64_reset'
   nios2-linux-ld: crypto/xxhash_generic.o: in function `xxhash_mod_init':
>> xxhash_generic.c:(.init.text+0x10): undefined reference to `crypto_register_shash'
   xxhash_generic.c:(.init.text+0x10): relocation truncated to fit: R_NIOS2_CALL26 against `crypto_register_shash'

Kconfig warnings: (for reference only)
   WARNING: unmet direct dependencies detected for CRYPTO_XXHASH
   Depends on CRYPTO
   Selected by
   - NFS_FS && NETWORK_FILESYSTEMS && INET && FILE_LOCKING && MULTIUSER

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