tree:   git://git.kernel.org/pub/scm/linux/kernel/git/rt/linux-stable-rt.git stable-rt/v3.2-rt
head:   fb6e7f579bdf51611e4c6f848e5af607f2a17af2
commit: 367c358a573d1370563b913eba6e7501fbe424c7 [426/519] smp: introduce a generic on_each_cpu_mask() function
config: blackfin-BF561-EZKIT-SMP_defconfig (attached as .config)
reproduce:
  wget https://git.kernel.org/cgit/linux/kernel/git/wfg/lkp-tests.git/plain/sbin/make.cross -O ~/bin/make.cross
  chmod +x ~/bin/make.cross
  git checkout 367c358a573d1370563b913eba6e7501fbe424c7
  # save the attached .config to linux build tree
  make.cross ARCH=blackfin 

All error/warnings (new ones prefixed by >>):

   kernel/built-in.o: In function `on_each_cpu_mask':
>> kernel/smp.c:735: undefined reference to `smp_call_function_many'

vim +735 kernel/smp.c

   729	 */
   730	void on_each_cpu_mask(const struct cpumask *mask, smp_call_func_t func,
   731				void *info, bool wait)
   732	{
   733		int cpu = get_cpu();
   734	
 > 735		smp_call_function_many(mask, func, info, wait);
   736		if (cpumask_test_cpu(cpu, mask)) {
   737			local_irq_disable();
   738			func(info);

---
0-DAY kernel test infrastructure                Open Source Technology Center
https://lists.01.org/pipermail/kbuild-all                   Intel Corporation