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PM / sleep: Make suspend-to-idle-specific code depend on CONFIG_SUSPEND

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Since idle_should_freeze() is defined to always return 'false'
for CONFIG_SUSPEND unset, all of the code depending on it in
cpuidle_idle_call() is not necessary in that case.

Make that code depend on CONFIG_SUSPEND too to avoid building it
when it is not going to be used.

Signed-off-by: Rafael J. Wysocki <[email protected]>
Acked-by: Thomas Gleixner <[email protected]>
This commit is contained in:
Rafael J. Wysocki 2015-05-16 01:38:15 +02:00
commit 87e9b9f1d8
4 changed files with 22 additions and 10 deletions
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2
drivers/cpuidle/cpuidle.c
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@ -92,6 +92,7 @@ static int find_deepest_state(struct cpuidle_driver *drv,
return ret;
}
#ifdef CONFIG_SUSPEND
/**
* cpuidle_find_deepest_state - Find the deepest available idle state.
* @drv: cpuidle driver for the given CPU.
@ -145,6 +146,7 @@ int cpuidle_enter_freeze(struct cpuidle_driver *drv, struct cpuidle_device *dev)
return index;
}
#endif /* CONFIG_SUSPEND */
/**
* cpuidle_enter_state - enter the state and update stats