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PM: QoS: Make CPU latency QoS depend on CONFIG_CPU_IDLE

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Because cpuidle is the only user of the effective constraint coming
from the CPU latency QoS, add #ifdef CONFIG_CPU_IDLE around that code
to avoid building it unnecessarily.

Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Reviewed-by: Ulf Hansson <ulf.hansson@linaro.org>
Reviewed-by: Amit Kucheria <amit.kucheria@linaro.org>
Tested-by: Amit Kucheria <amit.kucheria@linaro.org>
This commit is contained in:
Rafael J. Wysocki
2020-02-12 00:37:11 +01:00
parent b8e6e27c62
commit 814d51f888
2 changed files with 15 additions and 0 deletions
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kernel/power/qos.c
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@@ -209,6 +209,7 @@ bool pm_qos_update_flags(struct pm_qos_flags *pqf,
return prev_value != curr_value;
}
#ifdef CONFIG_CPU_IDLE
/* Definitions related to the CPU latency QoS. */
static struct pm_qos_constraints cpu_latency_constraints = {
@@ -421,6 +422,7 @@ static int __init cpu_latency_qos_init(void)
return ret;
}
late_initcall(cpu_latency_qos_init);
#endif /* CONFIG_CPU_IDLE */
/* Definitions related to the frequency QoS below. */