cpufreq: use cpufreq_driver->flags to mark CPUFREQ_HAVE_GOVERNOR_PER_POLICY

Use cpufreq_driver->flags to mark CPUFREQ_HAVE_GOVERNOR_PER_POLICY instead
of a separate field within cpufreq_driver. This will save some bytes of
memory.

Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Reviewed-by: Srivatsa S. Bhat <srivatsa.bhat@linux.vnet.ibm.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>

diff --git a/drivers/cpufreq/arm_big_little.c b/drivers/cpufreq/arm_big_little.c
index 9acfb82..2c7c134 100644 (file)
--- a/drivers/cpufreq/arm_big_little.c
+++ b/drivers/cpufreq/arm_big_little.c
@@ -213,13 +213,13 @@ static struct freq_attr *bL_cpufreq_attr[] = {
 
 static struct cpufreq_driver bL_cpufreq_driver = {
        .name                   = "arm-big-little",
-       .flags                  = CPUFREQ_STICKY,
+       .flags                  = CPUFREQ_STICKY |
+                                       CPUFREQ_HAVE_GOVERNOR_PER_POLICY,
        .verify                 = bL_cpufreq_verify_policy,
        .target                 = bL_cpufreq_set_target,
        .get                    = bL_cpufreq_get,
        .init                   = bL_cpufreq_init,
        .exit                   = bL_cpufreq_exit,
-       .have_governor_per_policy = true,
        .attr                   = bL_cpufreq_attr,
 };
 

diff --git a/drivers/cpufreq/cpufreq.c b/drivers/cpufreq/cpufreq.c
index 3a811df..fc9110c 100644 (file)
--- a/drivers/cpufreq/cpufreq.c
+++ b/drivers/cpufreq/cpufreq.c
@@ -133,7 +133,7 @@ static DEFINE_MUTEX(cpufreq_governor_mutex);
 
 bool have_governor_per_policy(void)
 {
-       return cpufreq_driver->have_governor_per_policy;
+       return !!(cpufreq_driver->flags & CPUFREQ_HAVE_GOVERNOR_PER_POLICY);
 }
 EXPORT_SYMBOL_GPL(have_governor_per_policy);
 

diff --git a/drivers/cpufreq/cpufreq_governor.h b/drivers/cpufreq/cpufreq_governor.h
index 88cd39f..b5f2b86 100644 (file)
--- a/drivers/cpufreq/cpufreq_governor.h
+++ b/drivers/cpufreq/cpufreq_governor.h
@@ -191,7 +191,10 @@ struct common_dbs_data {
        struct attribute_group *attr_group_gov_sys; /* one governor - system */
        struct attribute_group *attr_group_gov_pol; /* one governor - policy */
 
-       /* Common data for platforms that don't set have_governor_per_policy */
+       /*
+        * Common data for platforms that don't set
+        * CPUFREQ_HAVE_GOVERNOR_PER_POLICY
+        */
        struct dbs_data *gdbs_data;
 
        struct cpu_dbs_common_info *(*get_cpu_cdbs)(int cpu);

diff --git a/include/linux/cpufreq.h b/include/linux/cpufreq.h
index 00c80a5..24b84f7 100644 (file)
--- a/include/linux/cpufreq.h
+++ b/include/linux/cpufreq.h
@@ -180,13 +180,6 @@ __ATTR(_name, 0644, show_##_name, store_##_name)
 struct cpufreq_driver {
        char                    name[CPUFREQ_NAME_LEN];
        u8                      flags;
-       /*
-        * This should be set by platforms having multiple clock-domains, i.e.
-        * supporting multiple policies. With this sysfs directories of governor
-        * would be created in cpu/cpu<num>/cpufreq/ directory and so they can
-        * use the same governor with different tunables for different clusters.
-        */
-       bool                    have_governor_per_policy;
 
        /* needed by all drivers */
        int     (*init)         (struct cpufreq_policy *policy);
@@ -220,6 +213,14 @@ struct cpufreq_driver {
 #define CPUFREQ_PM_NO_WARN     (1 << 2)        /* don't warn on suspend/resume
                                                   speed mismatches */
 
+/*
+ * This should be set by platforms having multiple clock-domains, i.e.
+ * supporting multiple policies. With this sysfs directories of governor would
+ * be created in cpu/cpu<num>/cpufreq/ directory and so they can use the same
+ * governor with different tunables for different clusters.
+ */
+#define CPUFREQ_HAVE_GOVERNOR_PER_POLICY (1 << 3)
+
 int cpufreq_register_driver(struct cpufreq_driver *driver_data);
 int cpufreq_unregister_driver(struct cpufreq_driver *driver_data);