x86: remove idle_timestamp from 32bit irq_cpustat_t

Impact: bogus irq_cpustat field removed

idle_timestamp is left over from the removed irqbalance code.

Signed-off-by: Brian Gerst <brgerst@gmail.com>
Signed-off-by: Tejun Heo <tj@kernel.org>

2 files changed, 0 insertions, 2 deletions

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();