[ammarfaizi2-block:paulmck/linux-rcu/nmitest.2023.01.20a 5/5] kernel/rcu/rcutorture.c:3291: undefined reference to `set_nmi_torture'

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

tree:   https://github.com/ammarfaizi2/linux-block paulmck/linux-rcu/nmitest.2023.01.20a
head:   53e298568bde2c728ee2aac4ac634cca8550a4b4
commit: 53e298568bde2c728ee2aac4ac634cca8550a4b4 [5/5] rcutorture: Test NMI diagnostics
config: s390-allyesconfig (https://download.01.org/0day-ci/archive/20230121/202301211331.RMgsACsP-lkp@intel.com/config)
compiler: s390-linux-gcc (GCC) 12.1.0
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/ammarfaizi2/linux-block/commit/53e298568bde2c728ee2aac4ac634cca8550a4b4
        git remote add ammarfaizi2-block https://github.com/ammarfaizi2/linux-block
        git fetch --no-tags ammarfaizi2-block paulmck/linux-rcu/nmitest.2023.01.20a
        git checkout 53e298568bde2c728ee2aac4ac634cca8550a4b4
        # save the config file
        mkdir build_dir && cp config build_dir/.config
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-12.1.0 make.cross W=1 O=build_dir ARCH=s390 olddefconfig
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-12.1.0 make.cross W=1 O=build_dir ARCH=s390 SHELL=/bin/bash

If you fix the issue, kindly add following tag where applicable
| Reported-by: kernel test robot <lkp@intel.com>

All errors (new ones prefixed by >>):

   s390-linux-ld: kernel/rcu/rcutorture.o: in function `rcutorture_test_nmis':
>> kernel/rcu/rcutorture.c:3291: undefined reference to `set_nmi_torture'
>> s390-linux-ld: kernel/rcu/rcutorture.c:3303: undefined reference to `set_nmi_torture'


vim +3291 kernel/rcu/rcutorture.c

  3284	
  3285	static void rcutorture_test_nmis(int n)
  3286	{
  3287		int cpu;
  3288		int dumpcpu;
  3289		int i;
  3290	
> 3291		set_nmi_torture(nmi_delay, nmi_halt1, nmi_halt2, nmi_halt3);
  3292		for (i = 0; i < n; i++) {
  3293			preempt_disable();
  3294			cpu = smp_processor_id();
  3295			dumpcpu = cpu + 1;
  3296			if (dumpcpu >= nr_cpu_ids)
  3297				dumpcpu = 0;
  3298			pr_alert("%s: CPU %d invoking dump_cpu_task(%d)\n", __func__, cpu, dumpcpu);
  3299			dump_cpu_task(dumpcpu);
  3300			preempt_enable();
  3301			schedule_timeout_uninterruptible(15 * HZ);
  3302		}
> 3303		set_nmi_torture(0, false, false, false);
  3304	}
  3305	

-- 
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https://github.com/intel/lkp-tests