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cpufreq: Create for_each_governor()

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To make code more readable and less error prone, lets create a helper macro for
iterating over all available governors.

Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Acked-by: Saravana Kannan <skannan@codeaurora.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
This commit is contained in:
Viresh Kumar 2015-01-27 14:06:09 +05:30 • committed by Rafael J. Wysocki
parent b4f0676fe2
commit f7b2706117
1 changed files with 7 additions and 3 deletions
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10
drivers/cpufreq/cpufreq.c
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@ -37,6 +37,11 @@ static LIST_HEAD(cpufreq_policy_list);
#define for_each_policy(__policy) \ #define for_each_policy(__policy) \
list_for_each_entry(__policy, &cpufreq_policy_list, policy_list) list_for_each_entry(__policy, &cpufreq_policy_list, policy_list)
/* Iterate over governors */
static LIST_HEAD(cpufreq_governor_list);
#define for_each_governor(__governor) \
list_for_each_entry(__governor, &cpufreq_governor_list, governor_list)
/** /**
* The "cpufreq driver" - the arch- or hardware-dependent low * The "cpufreq driver" - the arch- or hardware-dependent low
* level driver of CPUFreq support, and its spinlock. This lock * level driver of CPUFreq support, and its spinlock. This lock
@ -99,7 +104,6 @@ void disable_cpufreq(void)
{ {
off = 1; off = 1;
} }
static LIST_HEAD(cpufreq_governor_list);
static DEFINE_MUTEX(cpufreq_governor_mutex); static DEFINE_MUTEX(cpufreq_governor_mutex);
bool have_governor_per_policy(void) bool have_governor_per_policy(void)
@ -434,7 +438,7 @@ static struct cpufreq_governor *find_governor(const char *str_governor)
{ {
struct cpufreq_governor *t; struct cpufreq_governor *t;
list_for_each_entry(t, &cpufreq_governor_list, governor_list) for_each_governor(t)
if (!strncasecmp(str_governor, t->name, CPUFREQ_NAME_LEN)) if (!strncasecmp(str_governor, t->name, CPUFREQ_NAME_LEN))
return t; return t;
@ -636,7 +640,7 @@ static ssize_t show_scaling_available_governors(struct cpufreq_policy *policy,
goto out; goto out;
} }
list_for_each_entry(t, &cpufreq_governor_list, governor_list) { for_each_governor(t) {
if (i >= (ssize_t) ((PAGE_SIZE / sizeof(char)) if (i >= (ssize_t) ((PAGE_SIZE / sizeof(char))
- (CPUFREQ_NAME_LEN + 2))) - (CPUFREQ_NAME_LEN + 2)))
goto out; goto out;