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SubjectRe: [PATCH 1/2] PM / QoS: unconditionally build the feature
acked-by <markgross@thegnar.org>

On Tue, Feb 07, 2012 at 09:34:05AM +0100, Jean Pihet wrote:
> 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.
>
> Reported-by: Venkatesh Pallipadi <venki@google.com>
> Signed-off-by: Jean Pihet <j-pihet@ti.com>
> Cc: Rafael J. Wysocki <rjw@sisk.pl>
> Cc: Mark Gross <markgross@thegnar.org>
> ---
> include/linux/pm_qos.h | 29 +----------------------------
> kernel/power/Makefile | 3 ++-
> 2 files changed, 3 insertions(+), 29 deletions(-)
>
> diff --git a/include/linux/pm_qos.h b/include/linux/pm_qos.h
> index e5bbcba..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,
> @@ -95,33 +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)
> - { return 0; }
> -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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