diff --git a/arch/powerpc/kernel/irq.c b/arch/powerpc/kernel/irq.c
index 5cbcf4d5a808db3f2d25fdc4fe01ea26e3d0f247..32fa52e8163fa67ba2e7c9209d264cbf0a06a61f 100644
--- a/arch/powerpc/kernel/irq.c
+++ b/arch/powerpc/kernel/irq.c
@@ -116,8 +116,6 @@ static inline notrace int decrementer_check_overflow(void)
  	u64 now = get_tb_or_rtc();
  	u64 *next_tb = &__get_cpu_var(decrementers_next_tb);
  
-	if (now >= *next_tb)
-		set_dec(1);
 	return now >= *next_tb;
 }