The PM QoS feature depends on CONFIG_PM which depends on
PM_SLEEP || PM_RUNTIME. This breaks CPU C-states with kernels
not having these CONFIGs.
This patch allows the feature in all cases.
Signed-off-by: Jean Pihet <j-pihet@xxxxxx>
Reported-by: Venkatesh Pallipadi <venki@xxxxxxxxxx>
Cc: Rafael J. Wysocki <rjw@xxxxxxx>
Cc: Mark Gross <markgross@xxxxxxxxxxx>
---
include/linux/pm_qos.h | 41 +----------------------------------------
kernel/power/Makefile | 3 ++-
2 files changed, 3 insertions(+), 41 deletions(-)
diff --git a/include/linux/pm_qos.h b/include/linux/pm_qos.h
index 4d99e4e..105be69 100644
--- a/include/linux/pm_qos.h
+++ b/include/linux/pm_qos.h
@@ -63,7 +63,6 @@ static inline int dev_pm_qos_request_active(struct dev_pm_qos_request *req)
return req->dev != 0;
}
-#ifdef CONFIG_PM
int pm_qos_update_target(struct pm_qos_constraints *c, struct plist_node *node,
enum pm_qos_req_action action, int value);
void pm_qos_add_request(struct pm_qos_request *req, int pm_qos_class,
@@ -78,6 +77,7 @@ int pm_qos_remove_notifier(int pm_qos_class, struct notifier_block *notifier);
int pm_qos_request_active(struct pm_qos_request *req);
s32 pm_qos_read_value(struct pm_qos_constraints *c);
+#ifdef CONFIG_PM
s32 __dev_pm_qos_read_value(struct device *dev);
s32 dev_pm_qos_read_value(struct device *dev);
int dev_pm_qos_add_request(struct device *dev, struct dev_pm_qos_request *req,
@@ -95,45 +95,6 @@ void dev_pm_qos_constraints_destroy(struct device *dev);
int dev_pm_qos_add_ancestor_request(struct device *dev,
struct dev_pm_qos_request *req, s32 value);
#else
-static inline int pm_qos_update_target(struct pm_qos_constraints *c,
- struct plist_node *node,
- enum pm_qos_req_action action,
- int value)
- { return 0; }
-static inline void pm_qos_add_request(struct pm_qos_request *req,
- int pm_qos_class, s32 value)
- { return; }
-static inline void pm_qos_update_request(struct pm_qos_request *req,
- s32 new_value)
- { return; }
-static inline void pm_qos_remove_request(struct pm_qos_request *req)
- { return; }
-
-static inline int pm_qos_request(int pm_qos_class)
-{
- switch (pm_qos_class) {
- case PM_QOS_CPU_DMA_LATENCY:
- return PM_QOS_CPU_DMA_LAT_DEFAULT_VALUE;
- case PM_QOS_NETWORK_LATENCY:
- return PM_QOS_NETWORK_LAT_DEFAULT_VALUE;
- case PM_QOS_NETWORK_THROUGHPUT:
- return PM_QOS_NETWORK_THROUGHPUT_DEFAULT_VALUE;
- default:
- return PM_QOS_DEFAULT_VALUE;
- }
-}
-
-static inline int pm_qos_add_notifier(int pm_qos_class,
- struct notifier_block *notifier)
- { return 0; }
-static inline int pm_qos_remove_notifier(int pm_qos_class,
- struct notifier_block *notifier)
- { return 0; }
-static inline int pm_qos_request_active(struct pm_qos_request *req)
- { return 0; }
-static inline s32 pm_qos_read_value(struct pm_qos_constraints *c)
- { return 0; }
-
static inline s32 __dev_pm_qos_read_value(struct device *dev)
{ return 0; }
static inline s32 dev_pm_qos_read_value(struct device *dev)
diff --git a/kernel/power/Makefile b/kernel/power/Makefile
index 07e0e28..66d808e 100644
--- a/kernel/power/Makefile
+++ b/kernel/power/Makefile
@@ -1,7 +1,8 @@
ccflags-$(CONFIG_PM_DEBUG) := -DDEBUG
-obj-$(CONFIG_PM) += main.o qos.o
+obj-y += qos.o
+obj-$(CONFIG_PM) += main.o
obj-$(CONFIG_VT_CONSOLE_SLEEP) += console.o
obj-$(CONFIG_FREEZER) += process.o
obj-$(CONFIG_SUSPEND) += suspend.o
--
1.7.5.4
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