x86, NUMA: Make numa_init_array() static

numa_init_array() no longer has users outside of numa.c.  Make it
static.

Signed-off-by: Tejun Heo <tj@kernel.org>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Yinghai Lu <yinghai@kernel.org>
Cc: David Rientjes <rientjes@google.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: "H. Peter Anvin" <hpa@zytor.com>

arch/x86/include/asm/numa.h

@@ -61,14 +61,12 @@ static inline int numa_cpu_node(int cpu)
 #ifdef CONFIG_NUMA
 extern void __cpuinit numa_set_node(int cpu, int node);
 extern void __cpuinit numa_clear_node(int cpu);
-extern void __init numa_init_array(void);
 extern void __init init_cpu_to_node(void);
 extern void __cpuinit numa_add_cpu(int cpu);
 extern void __cpuinit numa_remove_cpu(int cpu);
 #else	/* CONFIG_NUMA */
 static inline void numa_set_node(int cpu, int node)	{ }
 static inline void numa_clear_node(int cpu)		{ }
-static inline void numa_init_array(void)		{ }
 static inline void init_cpu_to_node(void)		{ }
 static inline void numa_add_cpu(int cpu)		{ }
 static inline void numa_remove_cpu(int cpu)		{ }

arch/x86/mm/numa.c

@@ -535,7 +535,7 @@ static int __init numa_register_memblks(struct numa_meminfo *mi)
  * as the number of CPUs is not known yet. We round robin the existing
  * nodes.
  */
-void __init numa_init_array(void)
+static void __init numa_init_array(void)
 {
 	int rr, i;