Hi Yunsheng,

Thank you for the patch! Yet something to improve:

[auto build test ERROR on linus/master]
[cannot apply to v5.3-rc6 next-20190830]
[if your patch is applied to the wrong git tree, please drop us a note to help improve the system]

url:    https://github.com/0day-ci/linux/commits/Yunsheng-Lin/check-the-node-id-consistently-across-different-arches/20190901-143722
config: s390-allmodconfig (attached as .config)
compiler: s390-linux-gcc (GCC) 7.4.0
reproduce:
        wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
        chmod +x ~/bin/make.cross
        # save the attached .config to linux build tree
        GCC_VERSION=7.4.0 make.cross ARCH=s390 

If you fix the issue, kindly add following tag
Reported-by: kbuild test robot <redacted>

All errors (new ones prefixed by >>):

   In file included from include/linux/topology.h:35:0,
                    from include/linux/gfp.h:9,
                    from include/linux/mm.h:10,
                    from include/linux/kvm_host.h:14,
                    from arch/s390/kernel/asm-offsets.c:11:
   arch/s390/include/asm/topology.h: In function 'cpumask_of_node':

quoted

arch/s390/include/asm/topology.h:84:18: error: wrong type argument to unary exclamation mark

     if (node < 0 || !node_to_cpumask_map[node])
                     ^
   make[2]: *** [arch/s390/kernel/asm-offsets.s] Error 1
   make[2]: Target '__build' not remade because of errors.
   make[1]: *** [prepare0] Error 2
   make[1]: Target 'prepare' not remade because of errors.
   make: *** [sub-make] Error 2
   43 real  4 user  3 sys  16.91% cpu 	make prepare

vim +84 arch/s390/include/asm/topology.h

    76	
    77	/* Returns a pointer to the cpumask of CPUs on node 'node'. */
    78	#define cpumask_of_node cpumask_of_node
    79	static inline const struct cpumask *cpumask_of_node(int node)
    80	{
    81		if (node >= nr_node_ids)
    82			return cpu_none_mask;
    83	
  > 84		if (node < 0 || !node_to_cpumask_map[node])
    85			return cpu_online_mask;
    86	
    87		return &node_to_cpumask_map[node];
    88	}
    89	

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