[csky-linux:riscv_compat_v5 20/21] riscv64-linux-ld: arch/riscv/kernel/compat_syscall_table.o:undefined reference to `compat_sys_fadvise64_64'

[kernel test robot]

tree:   https://github.com/c-sky/csky-linux riscv_compat_v5
head:   471721ad5e81a434eb4c5d84187312fedaf6cf72
commit: a43cb0b9c0aaa0888a758b2155ef7554a3328aec [20/21] riscv: compat: Add COMPAT Kbuild skeletal support
config: riscv-randconfig-m031-20220131 (https://download.01.org/0day-ci/archive/20220202/202202020825.z4o2smGO-lkp@xxxxxxxxx/config)
compiler: riscv64-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/c-sky/csky-linux/commit/a43cb0b9c0aaa0888a758b2155ef7554a3328aec
        git remote add csky-linux https://github.com/c-sky/csky-linux
        git fetch --no-tags csky-linux riscv_compat_v5
        git checkout a43cb0b9c0aaa0888a758b2155ef7554a3328aec
        # 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=riscv 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 >>):

>> riscv64-linux-ld: arch/riscv/kernel/compat_syscall_table.o:(.rodata+0x6f8): undefined reference to `compat_sys_fadvise64_64'

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