extern cpumask_t cpu_online_map;
extern cpumask_t cpu_core_map[NR_CPUS];
-extern cpumask_t cpu_sibling_map[NR_CPUS];
+DECLARE_PER_CPU(cpumask_t, cpu_sibling_map);
extern int smp_num_siblings;
extern int smp_num_cpucores;
extern void __iomem *ipi_base_addr;
extern int __cpu_disable (void);
extern void __cpu_die (unsigned int cpu);
extern void cpu_die (void) __attribute__ ((noreturn));
-extern int __cpu_up (unsigned int cpu);
extern void __init smp_build_cpu_map(void);
extern void __init init_smp_config (void);