x86: move trampoline arrays extern definition to smp.h

In here, they can serve both architectures
Signed-off-by: Glauber Costa <gcosta@redhat.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

arch/x86/kernel/smpboot_32.c

@@ -73,12 +73,6 @@ EXPORT_PER_CPU_SYMBOL(x86_cpu_to_apicid);
 
 u8 apicid_2_node[MAX_APICID];
 
-/*
- * Trampoline 80x86 program as an array.
- */
-
-extern const unsigned char trampoline_data [];
-extern const unsigned char trampoline_end  [];
 static unsigned char *trampoline_base;
 
 static void map_cpu_to_logical_apicid(void);

arch/x86/kernel/smpboot_64.c

@@ -63,13 +63,6 @@
 /* Set when the idlers are all forked */
 int smp_threads_ready;
 
-/*
- * Trampoline 80x86 program as an array.
- */
-
-extern const unsigned char trampoline_data[];
-extern const unsigned char trampoline_end[];
-
 /* State of each CPU */
 DEFINE_PER_CPU(int, cpu_state) = { 0 };
 

include/asm-x86/smp.h

@@ -9,6 +9,12 @@ extern cpumask_t cpu_callout_map;
 extern int smp_num_siblings;
 extern unsigned int num_processors;
 
+/*
+ * Trampoline 80x86 program as an array.
+ */
+extern const unsigned char trampoline_data [];
+extern const unsigned char trampoline_end  [];
+
 struct smp_ops {
 	void (*smp_prepare_boot_cpu)(void);
 	void (*smp_prepare_cpus)(unsigned max_cpus);