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authorXunlei Pang <pang.xunlei@linaro.org>2015-08-31 06:34:05 +0300
committerRafael J. Wysocki <rafael.j.wysocki@intel.com>2015-09-03 04:05:47 +0300
commitabceaa9cded5f059f8c3b3b6f32730084fe5e39f (patch)
tree8f4cfa6f48e5ed6b6eee71ba4d2b7c334a705ba9 /drivers/cpuidle/cpuidle.h
parent4c1ed5a6079078699128064664913ae7b079648f (diff)
downloadlinux-abceaa9cded5f059f8c3b3b6f32730084fe5e39f.tar.xz
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 <pang.xunlei@linaro.org> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Diffstat (limited to 'drivers/cpuidle/cpuidle.h')
-rw-r--r--drivers/cpuidle/cpuidle.h6
1 files changed, 6 insertions, 0 deletions
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)
{