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-rw-r--r--drivers/cpuidle/governors/teo.c9
1 files changed, 8 insertions, 1 deletions
diff --git a/drivers/cpuidle/governors/teo.c b/drivers/cpuidle/governors/teo.c
index ecbcfaefb0cd..b33418f5df70 100644
--- a/drivers/cpuidle/governors/teo.c
+++ b/drivers/cpuidle/governors/teo.c
@@ -130,7 +130,14 @@ static void teo_update(struct cpuidle_driver *drv, struct cpuidle_device *dev)
} else {
u64 lat_ns = drv->states[dev->last_state_idx].exit_latency_ns;
- measured_ns = cpu_data->time_span_ns;
+ /*
+ * The computations below are to determine whether or not the
+ * (saved) time till the next timer event and the measured idle
+ * duration fall into the same "bin", so use last_residency_ns
+ * for that instead of time_span_ns which includes the cpuidle
+ * overhead.
+ */
+ measured_ns = dev->last_residency_ns;
/*
* The delay between the wakeup and the first instruction
* executed by the CPU is not likely to be worst-case every