diff --git a/arch/x86/include/asm/mce.h b/arch/x86/include/asm/mce.h
index 365a594..5cdd8d1 100644
--- a/arch/x86/include/asm/mce.h
+++ b/arch/x86/include/asm/mce.h
@@ -109,6 +109,12 @@
 extern int mce_disabled;
 extern int mce_p5_enabled;
 
+#ifdef CONFIG_X86_MCE
+void mcheck_init(struct cpuinfo_x86 *c);
+#else
+static inline void mcheck_init(struct cpuinfo_x86 *c) {}
+#endif
+
 #ifdef CONFIG_X86_OLD_MCE
 extern int nr_mce_banks;
 void amd_mcheck_init(struct cpuinfo_x86 *c);
@@ -126,13 +132,9 @@
 static inline void enable_p5_mce(void) {}
 #endif
 
-/* Call the installed machine check handler for this CPU setup. */
-extern void (*machine_check_vector)(struct pt_regs *, long error_code);
-
 void mce_setup(struct mce *m);
 void mce_log(struct mce *m);
 DECLARE_PER_CPU(struct sys_device, mce_dev);
-extern void (*threshold_cpu_callback)(unsigned long action, unsigned int cpu);
 
 /*
  * To support more than 128 would need to escape the predefined
@@ -169,8 +171,6 @@
 
 extern atomic_t mce_entry;
 
-void do_machine_check(struct pt_regs *, long);
-
 typedef DECLARE_BITMAP(mce_banks_t, MAX_NR_BANKS);
 DECLARE_PER_CPU(mce_banks_t, mce_poll_banks);
 
@@ -187,13 +187,20 @@
 DECLARE_PER_CPU(struct mce, injectm);
 extern struct file_operations mce_chrdev_ops;
 
-#ifdef CONFIG_X86_MCE
-void mcheck_init(struct cpuinfo_x86 *c);
-#else
-#define mcheck_init(c) do { } while (0)
-#endif
+/*
+ * Exception handler
+ */
+
+/* Call the installed machine check handler for this CPU setup. */
+extern void (*machine_check_vector)(struct pt_regs *, long error_code);
+void do_machine_check(struct pt_regs *, long);
+
+/*
+ * Threshold handler
+ */
 
 extern void (*mce_threshold_vector)(void);
+extern void (*threshold_cpu_callback)(unsigned long action, unsigned int cpu);
 
 /*
  * Thermal handler