x86: unify prepare_boot_cpu

definition is moved to common header. x86_64 version is now called
native_prepare_boot_cpu

Signed-off-by: Glauber Costa <gcosta@redhat.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

arch/x86/kernel/smp_64.c

@@ -530,6 +530,7 @@ asmlinkage void smp_call_function_interrupt(void)
 }
 
 struct smp_ops smp_ops = {
+	.smp_prepare_boot_cpu = native_smp_prepare_boot_cpu,
 	.smp_send_reschedule = native_smp_send_reschedule,
 	.smp_call_function_mask = native_smp_call_function_mask,
 	.cpu_up = native_cpu_up,

arch/x86/kernel/smpboot_64.c

@@ -918,7 +918,7 @@ void __init smp_prepare_cpus(unsigned int max_cpus)
 /*
  * Early setup to make printk work.
  */
-void __init smp_prepare_boot_cpu(void)
+void __init native_smp_prepare_boot_cpu(void)
 {
 	int me = smp_processor_id();
 	/* already set me in cpu_online_map in boot_cpu_init() */

include/asm-x86/smp.h

@@ -24,6 +24,11 @@ struct smp_ops {
 #ifdef CONFIG_SMP
 extern struct smp_ops smp_ops;
 
+static inline void smp_prepare_boot_cpu(void)
+{
+	smp_ops.smp_prepare_boot_cpu();
+}
+
 static inline int __cpu_up(unsigned int cpu)
 {
 	return smp_ops.cpu_up(cpu);
@@ -41,6 +46,7 @@ static inline int smp_call_function_mask(cpumask_t mask,
 	return smp_ops.smp_call_function_mask(mask, func, info, wait);
 }
 
+void native_smp_prepare_boot_cpu(void);
 int native_cpu_up(unsigned int cpunum);
 #endif
 

include/asm-x86/smp_32.h

@@ -39,10 +39,6 @@ extern void remove_siblinginfo(int cpu);
 extern void set_cpu_sibling_map(int cpu);
 
 #ifdef CONFIG_SMP
-static inline void smp_prepare_boot_cpu(void)
-{
-	smp_ops.smp_prepare_boot_cpu();
-}
 static inline void smp_prepare_cpus(unsigned int max_cpus)
 {
 	smp_ops.smp_prepare_cpus(max_cpus);
@@ -57,7 +53,6 @@ static inline void smp_send_stop(void)
 	smp_ops.smp_send_stop();
 }
 
-void native_smp_prepare_boot_cpu(void);
 void native_smp_prepare_cpus(unsigned int max_cpus);
 void native_smp_cpus_done(unsigned int max_cpus);