diff --git a/arch/x86/include/asm/nmi.h b/arch/x86/include/asm/nmi.h
index 5c5f1e56c404..41a0ebb699ec 100644
--- a/arch/x86/include/asm/nmi.h
+++ b/arch/x86/include/asm/nmi.h
@@ -14,9 +14,6 @@ extern void release_perfctr_nmi(unsigned int);
 extern int reserve_evntsel_nmi(unsigned int);
 extern void release_evntsel_nmi(unsigned int);
 
-struct ctl_table;
-extern int proc_nmi_enabled(struct ctl_table *, int ,
-			void __user *, size_t *, loff_t *);
 extern int unknown_nmi_panic;
 
 #endif /* CONFIG_X86_LOCAL_APIC */