[rcu:dev.2020.09.07a 23/23] csky-linux-ld: core.c:undefined reference to `n_rtt_sched_running'

[rcu:dev.2020.09.07a 23/23] csky-linux-ld: core.c:undefined reference to `n_rtt_sched_running'

[kernel test robot]

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tree:   https://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu.git dev.2020.09.07a
head:   cccf684a1da846c3ff830d553bc4cf97bf779f48
commit: cccf684a1da846c3ff830d553bc4cf97bf779f48 [23/23] rcu-tasks: Mass of debug and fixes
config: csky-defconfig (attached as .config)
compiler: csky-linux-gcc (GCC) 9.3.0
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 checkout cccf684a1da846c3ff830d553bc4cf97bf779f48
        # save the attached .config to linux build tree
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross ARCH=csky 

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 >>):

   csky-linux-ld: kernel/sched/core.o: in function `$d':
   core.c:(.text+0x1584): undefined reference to `n_rtt_sched'
>> csky-linux-ld: core.c:(.text+0x1744): undefined reference to `n_rtt_sched_running'
>> csky-linux-ld: core.c:(.text+0x1748): undefined reference to `n_rtt_sched_fail'
>> csky-linux-ld: core.c:(.text+0x174c): undefined reference to `n_rtt_sched_waking'
>> csky-linux-ld: core.c:(.text+0x1750): undefined reference to `n_rtt_sched_onrq'

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

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