diff --git a/arch/x86/kernel/i386_ksyms_32.c b/arch/x86/kernel/i386_ksyms_32.c
index 02112fcc0de7ea3ff7a752e84d2b071d7a6ff74c..061627806a2d98320032f27e151ab08b3d8559fe 100644
--- a/arch/x86/kernel/i386_ksyms_32.c
+++ b/arch/x86/kernel/i386_ksyms_32.c
@@ -22,12 +22,5 @@ EXPORT_SYMBOL(__put_user_8);
 
 EXPORT_SYMBOL(strstr);
 
-#ifdef CONFIG_SMP
-extern void FASTCALL( __write_lock_failed(rwlock_t *rw));
-extern void FASTCALL( __read_lock_failed(rwlock_t *rw));
-EXPORT_SYMBOL(__write_lock_failed);
-EXPORT_SYMBOL(__read_lock_failed);
-#endif
-
 EXPORT_SYMBOL(csum_partial);
 EXPORT_SYMBOL(empty_zero_page);
diff --git a/arch/x86/kernel/x8664_ksyms_64.c b/arch/x86/kernel/x8664_ksyms_64.c
index 77c25b307635f6c521506b04f51d728ff7ac1b13..e28b533674dda916ec42bda5b8cf4636ad9f31dd 100644
--- a/arch/x86/kernel/x8664_ksyms_64.c
+++ b/arch/x86/kernel/x8664_ksyms_64.c
@@ -34,13 +34,6 @@ EXPORT_SYMBOL(__copy_from_user_inatomic);
 EXPORT_SYMBOL(copy_page);
 EXPORT_SYMBOL(clear_page);
 
-#ifdef CONFIG_SMP
-extern void  __write_lock_failed(rwlock_t *rw);
-extern void  __read_lock_failed(rwlock_t *rw);
-EXPORT_SYMBOL(__write_lock_failed);
-EXPORT_SYMBOL(__read_lock_failed);
-#endif
-
 /* Export string functions. We normally rely on gcc builtin for most of these,
    but gcc sometimes decides not to inline them. */    
 #undef memcpy