diff --git a/include/asm-arm/system.h b/include/asm-arm/system.h
index 8efa4eb..5621d61 100644
--- a/include/asm-arm/system.h
+++ b/include/asm-arm/system.h
@@ -93,8 +93,6 @@
 				       struct pt_regs *),
 		     int sig, const char *name);
 
-#include <asm/proc-fns.h>
-
 #define xchg(ptr,x) \
 	((__typeof__(*(ptr)))__xchg((unsigned long)(x),(ptr),sizeof(*(ptr))))
 
@@ -102,6 +100,8 @@
 
 extern asmlinkage void __backtrace(void);
 extern asmlinkage void c_backtrace(unsigned long fp, int pmode);
+
+struct mm_struct;
 extern void show_pte(struct mm_struct *mm, unsigned long addr);
 extern void __show_regs(struct pt_regs *);