diff --git a/arch/x86/include/asm/hardirq_32.h b/arch/x86/include/asm/hardirq_32.h
index d4b5d731073f..a70ed050fdef 100644
--- a/arch/x86/include/asm/hardirq_32.h
+++ b/arch/x86/include/asm/hardirq_32.h
@@ -6,7 +6,6 @@
 
 typedef struct {
 	unsigned int __softirq_pending;
-	unsigned long idle_timestamp;
 	unsigned int __nmi_count;	/* arch dependent */
 	unsigned int apic_timer_irqs;	/* arch dependent */
 	unsigned int irq0_irqs;
diff --git a/arch/x86/kernel/process_32.c b/arch/x86/kernel/process_32.c
index 2c00a57ccb90..1a1ae8edc40c 100644
--- a/arch/x86/kernel/process_32.c
+++ b/arch/x86/kernel/process_32.c
@@ -108,7 +108,6 @@ void cpu_idle(void)
 				play_dead();
 
 			local_irq_disable();
-			__get_cpu_var(irq_stat).idle_timestamp = jiffies;
 			/* Don't trace irqs off for idle */
 			stop_critical_timings();
 			pm_idle();