cpuidle: Remove time measurement in poll state
The time measurement is already done in the cpuidle framework in the
'cpuidle_enter_state' function.
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
diff --git a/drivers/cpuidle/driver.c b/drivers/cpuidle/driver.c
index 9634f20..e431d11 100644
--- a/drivers/cpuidle/driver.c
+++ b/drivers/cpuidle/driver.c
@@ -182,10 +182,6 @@
static int poll_idle(struct cpuidle_device *dev,
struct cpuidle_driver *drv, int index)
{
- ktime_t t1, t2;
- s64 diff;
-
- t1 = ktime_get();
local_irq_enable();
if (!current_set_polling_and_test()) {
while (!need_resched())
@@ -193,13 +189,6 @@
}
current_clr_polling();
- t2 = ktime_get();
- diff = ktime_to_us(ktime_sub(t2, t1));
- if (diff > INT_MAX)
- diff = INT_MAX;
-
- dev->last_residency = (int) diff;
-
return index;
}