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List: linux-pm
Subject: [PATCH v10 07/11] PM / QoS: Export _freq_qos_apply
From: Leonard Crestez <leonard.crestez () nxp ! com>
Date: 2019-10-31 21:34:24
Message-ID: 077c5132cc4391bfc43897c719c648f10b658b11.1572556786.git.leonard.crestez () nxp ! com
[Download RAW message or body]
This is exported only for dev_pm_qos to use in order to implement
per-device freq constraints.
Export with a leading underscore because this is an implementation
detail, it's not meant to be used by drivers making QoS requests.
Signed-off-by: Leonard Crestez <leonard.crestez@nxp.com>
---
include/linux/pm_qos.h | 2 ++
kernel/power/qos.c | 11 ++++++-----
2 files changed, 8 insertions(+), 5 deletions(-)
diff --git a/include/linux/pm_qos.h b/include/linux/pm_qos.h
index a8e1486e3200..89a8e7a4710f 100644
--- a/include/linux/pm_qos.h
+++ b/include/linux/pm_qos.h
@@ -291,10 +291,12 @@ s32 freq_qos_read_value(struct freq_constraints *qos,
int freq_qos_add_request(struct freq_constraints *qos,
struct freq_qos_request *req,
enum freq_qos_req_type type, s32 value);
int freq_qos_update_request(struct freq_qos_request *req, s32 new_value);
int freq_qos_remove_request(struct freq_qos_request *req);
+int _freq_qos_apply(struct freq_qos_request *req,
+ enum pm_qos_req_action action, s32 value);
int freq_qos_add_notifier(struct freq_constraints *qos,
enum freq_qos_req_type type,
struct notifier_block *notifier);
int freq_qos_remove_notifier(struct freq_constraints *qos,
diff --git a/kernel/power/qos.c b/kernel/power/qos.c
index 04e83fdfbe80..ea38ae86bd66 100644
--- a/kernel/power/qos.c
+++ b/kernel/power/qos.c
@@ -708,16 +708,16 @@ s32 freq_qos_read_value(struct freq_constraints *qos,
return ret;
}
/**
- * freq_qos_apply - Add/modify/remove frequency QoS request.
+ * _freq_qos_apply - Add/modify/remove frequency QoS request.
* @req: Constraint request to apply.
* @action: Action to perform (add/update/remove).
* @value: Value to assign to the QoS request.
*/
-static int freq_qos_apply(struct freq_qos_request *req,
+int _freq_qos_apply(struct freq_qos_request *req,
enum pm_qos_req_action action, s32 value)
{
int ret;
switch(req->type) {
@@ -733,10 +733,11 @@ static int freq_qos_apply(struct freq_qos_request *req,
ret = -EINVAL;
}
return ret;
}
+EXPORT_SYMBOL_GPL(_freq_qos_apply);
/**
* freq_qos_add_request - Insert new frequency QoS request into a given list.
* @qos: Constraints to update.
* @req: Preallocated request object.
@@ -763,11 +764,11 @@ int freq_qos_add_request(struct freq_constraints *qos,
"%s() called for active request\n", __func__))
return -EINVAL;
req->qos = qos;
req->type = type;
- ret = freq_qos_apply(req, PM_QOS_ADD_REQ, value);
+ ret = _freq_qos_apply(req, PM_QOS_ADD_REQ, value);
if (ret < 0) {
req->qos = NULL;
req->type = 0;
}
@@ -796,11 +797,11 @@ int freq_qos_update_request(struct freq_qos_request *req, s32 new_value)
return -EINVAL;
if (req->pnode.prio == new_value)
return 0;
- return freq_qos_apply(req, PM_QOS_UPDATE_REQ, new_value);
+ return _freq_qos_apply(req, PM_QOS_UPDATE_REQ, new_value);
}
EXPORT_SYMBOL_GPL(freq_qos_update_request);
/**
* freq_qos_remove_request - Remove frequency QoS request from its list.
@@ -819,11 +820,11 @@ int freq_qos_remove_request(struct freq_qos_request *req)
if (WARN(!freq_qos_request_active(req),
"%s() called for unknown object\n", __func__))
return -EINVAL;
- return freq_qos_apply(req, PM_QOS_REMOVE_REQ, PM_QOS_DEFAULT_VALUE);
+ return _freq_qos_apply(req, PM_QOS_REMOVE_REQ, PM_QOS_DEFAULT_VALUE);
}
EXPORT_SYMBOL_GPL(freq_qos_remove_request);
/**
* freq_qos_add_notifier - Add frequency QoS change notifier.
--
2.17.1
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