diff --git a/[refs] b/[refs]
index 909b6ca50e69..8b052ed8b1bd 100644
--- a/[refs]
+++ b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: baa36046d09ea6dbc122c795566992318663d9eb
+refs/heads/master: b9bb50db9126c4ccad78af2dfb77277ca17c9b64
diff --git a/trunk/arch/s390/include/asm/switch_to.h b/trunk/arch/s390/include/asm/switch_to.h
index e7f9b3d04fa1..314cc9426fc4 100644
--- a/trunk/arch/s390/include/asm/switch_to.h
+++ b/trunk/arch/s390/include/asm/switch_to.h
@@ -89,8 +89,6 @@ static inline void restore_access_regs(unsigned int *acrs)
 	prev = __switch_to(prev,next);					\
 } while (0)
 
-extern void account_tick_vtime(struct task_struct *);
-
 #define finish_arch_switch(prev) do {					     \
 	set_fs(current->thread.mm_segment);				     \
 } while (0)