From abceaa9cded5f059f8c3b3b6f32730084fe5e39f Mon Sep 17 00:00:00 2001 From: Xunlei Pang Date: Mon, 31 Aug 2015 11:34:05 +0800 Subject: cpuidle/coupled: Add sanity check for safe_state_index Since we are using cpuidle_driver::safe_state_index directly as the target state index, it is better to add the sanity check at the point of registering the driver. Signed-off-by: Xunlei Pang Signed-off-by: Rafael J. Wysocki --- drivers/cpuidle/cpuidle.h | 6 ++++++ 1 file changed, 6 insertions(+) (limited to 'drivers/cpuidle/cpuidle.h') diff --git a/drivers/cpuidle/cpuidle.h b/drivers/cpuidle/cpuidle.h index 178c5ad3d568..f87f399b0540 100644 --- a/drivers/cpuidle/cpuidle.h +++ b/drivers/cpuidle/cpuidle.h @@ -35,6 +35,7 @@ extern void cpuidle_remove_sysfs(struct cpuidle_device *dev); #ifdef CONFIG_ARCH_NEEDS_CPU_IDLE_COUPLED bool cpuidle_state_is_coupled(struct cpuidle_driver *drv, int state); +int cpuidle_coupled_state_verify(struct cpuidle_driver *drv); int cpuidle_enter_state_coupled(struct cpuidle_device *dev, struct cpuidle_driver *drv, int next_state); int cpuidle_coupled_register_device(struct cpuidle_device *dev); @@ -46,6 +47,11 @@ bool cpuidle_state_is_coupled(struct cpuidle_driver *drv, int state) return false; } +static inline int cpuidle_coupled_state_verify(struct cpuidle_driver *drv) +{ + return 0; +} + static inline int cpuidle_enter_state_coupled(struct cpuidle_device *dev, struct cpuidle_driver *drv, int next_state) { -- cgit v1.2.3