| lists.openwall.net | lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC | |
|
Open Source and information security mailing list archives
| ||
|
Message-ID: <5491751.yYEN5nTL3A@vostro.rjw.lan>
Date: Thu, 04 Feb 2016 00:33:37 +0100
From: "Rafael J. Wysocki" <rjw@...ysocki.net>
To: Linux PM list <linux-pm@...r.kernel.org>
Cc: Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
Viresh Kumar <viresh.kumar@...aro.org>,
Srinivas Pandruvada <srinivas.pandruvada@...ux.intel.com>,
Juri Lelli <juri.lelli@....com>,
Steve Muckle <steve.muckle@...aro.org>,
Saravana Kannan <skannan@...eaurora.org>
Subject: [PATCH 7/11] cpufreq: governor: Rework cpufreq_governor_dbs()
From: Rafael J. Wysocki <rafael.j.wysocki@...el.com>
Since it is possible to obtain a pointer to struct dbs_governor
from a pointer to the struct governor embedded in it via
container_of(), the second argument of cpufreq_governor_init()
is not necessary. Accordingly, cpufreq_governor_dbs() doesn't
need its second argument either and the ->governor callbacks
for both the ondemand and conservative governors may be set
to cpufreq_governor_dbs() directly. Make that happen.
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@...el.com>
---
drivers/cpufreq/cpufreq_conservative.c | 11 +----------
drivers/cpufreq/cpufreq_governor.c | 10 +++++-----
drivers/cpufreq/cpufreq_governor.h | 3 +--
drivers/cpufreq/cpufreq_ondemand.c | 11 +----------
4 files changed, 8 insertions(+), 27 deletions(-)
Index: linux-pm/drivers/cpufreq/cpufreq_conservative.c
===================================================================
--- linux-pm.orig/drivers/cpufreq/cpufreq_conservative.c
+++ linux-pm/drivers/cpufreq/cpufreq_conservative.c
@@ -325,13 +325,10 @@ static void cs_exit(struct dbs_data *dbs
define_get_cpu_dbs_routines(cs_cpu_dbs_info);
-static int cs_cpufreq_governor_dbs(struct cpufreq_policy *policy,
- unsigned int event);
-
static struct dbs_governor cs_dbs_gov = {
.gov = {
.name = "conservative",
- .governor = cs_cpufreq_governor_dbs,
+ .governor = cpufreq_governor_dbs,
.max_transition_latency = TRANSITION_LATENCY_LIMIT,
.owner = THIS_MODULE,
},
@@ -348,12 +345,6 @@ static struct dbs_governor cs_dbs_gov =
#define CPU_FREQ_GOV_CONSERVATIVE (&cs_dbs_gov.gov)
-static int cs_cpufreq_governor_dbs(struct cpufreq_policy *policy,
- unsigned int event)
-{
- return cpufreq_governor_dbs(policy, &cs_dbs_gov, event);
-}
-
static int dbs_cpufreq_notifier(struct notifier_block *nb, unsigned long val,
void *data)
{
Index: linux-pm/drivers/cpufreq/cpufreq_governor.c
===================================================================
--- linux-pm.orig/drivers/cpufreq/cpufreq_governor.c
+++ linux-pm/drivers/cpufreq/cpufreq_governor.c
@@ -329,9 +329,9 @@ static void free_common_dbs_info(struct
kfree(shared);
}
-static int cpufreq_governor_init(struct cpufreq_policy *policy,
- struct dbs_governor *gov)
+static int cpufreq_governor_init(struct cpufreq_policy *policy)
{
+ struct dbs_governor *gov;
struct dbs_data *dbs_data;
unsigned int latency;
int ret;
@@ -340,6 +340,7 @@ static int cpufreq_governor_init(struct
if (policy->governor_data)
return -EBUSY;
+ gov = container_of(policy->governor, struct dbs_governor, gov);
if (global_dbs_data) {
if (WARN_ON(have_governor_per_policy()))
return -EINVAL;
@@ -538,8 +539,7 @@ static int cpufreq_governor_limits(struc
return 0;
}
-int cpufreq_governor_dbs(struct cpufreq_policy *policy,
- struct dbs_governor *gov, unsigned int event)
+int cpufreq_governor_dbs(struct cpufreq_policy *policy, unsigned int event)
{
int ret = -EINVAL;
@@ -547,7 +547,7 @@ int cpufreq_governor_dbs(struct cpufreq_
mutex_lock(&dbs_data_mutex);
if (event == CPUFREQ_GOV_POLICY_INIT) {
- ret = cpufreq_governor_init(policy, gov);
+ ret = cpufreq_governor_init(policy);
} else if (policy->governor_data) {
switch (event) {
case CPUFREQ_GOV_POLICY_EXIT:
Index: linux-pm/drivers/cpufreq/cpufreq_governor.h
===================================================================
--- linux-pm.orig/drivers/cpufreq/cpufreq_governor.h
+++ linux-pm/drivers/cpufreq/cpufreq_governor.h
@@ -273,8 +273,7 @@ void gov_set_update_util(struct cpu_comm
unsigned int delay_us);
void gov_cancel_work(struct cpu_common_dbs_info *shared);
void dbs_check_cpu(struct dbs_data *dbs_data, int cpu);
-int cpufreq_governor_dbs(struct cpufreq_policy *policy,
- struct dbs_governor *gov, unsigned int event);
+int cpufreq_governor_dbs(struct cpufreq_policy *policy, unsigned int event);
void od_register_powersave_bias_handler(unsigned int (*f)
(struct cpufreq_policy *, unsigned int, unsigned int),
unsigned int powersave_bias);
Index: linux-pm/drivers/cpufreq/cpufreq_ondemand.c
===================================================================
--- linux-pm.orig/drivers/cpufreq/cpufreq_ondemand.c
+++ linux-pm/drivers/cpufreq/cpufreq_ondemand.c
@@ -539,13 +539,10 @@ static struct od_ops od_ops = {
.freq_increase = dbs_freq_increase,
};
-static int od_cpufreq_governor_dbs(struct cpufreq_policy *policy,
- unsigned int event);
-
static struct dbs_governor od_dbs_gov = {
.gov = {
.name = "ondemand",
- .governor = od_cpufreq_governor_dbs,
+ .governor = cpufreq_governor_dbs,
.max_transition_latency = TRANSITION_LATENCY_LIMIT,
.owner = THIS_MODULE,
},
@@ -563,12 +560,6 @@ static struct dbs_governor od_dbs_gov =
#define CPU_FREQ_GOV_ONDEMAND (&od_dbs_gov.gov)
-static int od_cpufreq_governor_dbs(struct cpufreq_policy *policy,
- unsigned int event)
-{
- return cpufreq_governor_dbs(policy, &od_dbs_gov, event);
-}
-
static void od_set_powersave_bias(unsigned int powersave_bias)
{
struct cpufreq_policy *policy;
Powered by blists - more mailing lists