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authorRafael J. Wysocki <rafael.j.wysocki@intel.com>2020-10-22 14:57:45 +0300
committerRafael J. Wysocki <rafael.j.wysocki@intel.com>2020-11-02 20:32:39 +0300
commit56a7ff75cd08987812209971e319f78156ea2bb1 (patch)
treea8dd7db37b17d0c10327bf90833a56136ffba104
parent3cea11cd5e3b00d91caf0b4730194039b45c5891 (diff)
downloadlinux-56a7ff75cd08987812209971e319f78156ea2bb1.tar.xz
cpufreq: Drop restore_freq from struct cpufreq_policy
The restore_freq field in struct cpufreq_policy is only used by __target_index() in one place and a local variable in that function may as well be used instead of it, so drop it and modify __target_index() accordingly. Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
-rw-r--r--drivers/cpufreq/cpufreq.c10
-rw-r--r--include/linux/cpufreq.h5
2 files changed, 5 insertions, 10 deletions
diff --git a/drivers/cpufreq/cpufreq.c b/drivers/cpufreq/cpufreq.c
index 336b5e94cbc8..f2d96175f62d 100644
--- a/drivers/cpufreq/cpufreq.c
+++ b/drivers/cpufreq/cpufreq.c
@@ -2123,7 +2123,7 @@ static int __target_intermediate(struct cpufreq_policy *policy,
static int __target_index(struct cpufreq_policy *policy, int index)
{
struct cpufreq_freqs freqs = {.old = policy->cur, .flags = 0};
- unsigned int intermediate_freq = 0;
+ unsigned int restore_freq, intermediate_freq = 0;
unsigned int newfreq = policy->freq_table[index].frequency;
int retval = -EINVAL;
bool notify;
@@ -2131,6 +2131,9 @@ static int __target_index(struct cpufreq_policy *policy, int index)
if (newfreq == policy->cur)
return 0;
+ /* Save last value to restore later on errors */
+ restore_freq = policy->cur;
+
notify = !(cpufreq_driver->flags & CPUFREQ_ASYNC_NOTIFICATION);
if (notify) {
/* Handle switching to intermediate frequency */
@@ -2168,7 +2171,7 @@ static int __target_index(struct cpufreq_policy *policy, int index)
*/
if (unlikely(retval && intermediate_freq)) {
freqs.old = intermediate_freq;
- freqs.new = policy->restore_freq;
+ freqs.new = restore_freq;
cpufreq_freq_transition_begin(policy, &freqs);
cpufreq_freq_transition_end(policy, &freqs, 0);
}
@@ -2203,9 +2206,6 @@ int __cpufreq_driver_target(struct cpufreq_policy *policy,
!(cpufreq_driver->flags & CPUFREQ_NEED_UPDATE_LIMITS))
return 0;
- /* Save last value to restore later on errors */
- policy->restore_freq = policy->cur;
-
if (cpufreq_driver->target)
return cpufreq_driver->target(policy, target_freq, relation);
diff --git a/include/linux/cpufreq.h b/include/linux/cpufreq.h
index 1eaa04f1bae6..9779a6cd8baa 100644
--- a/include/linux/cpufreq.h
+++ b/include/linux/cpufreq.h
@@ -65,7 +65,6 @@ struct cpufreq_policy {
unsigned int max; /* in kHz */
unsigned int cur; /* in kHz, only needed if cpufreq
* governors are used */
- unsigned int restore_freq; /* = policy->cur before transition */
unsigned int suspend_freq; /* freq to set during suspend */
unsigned int policy; /* see above */
@@ -308,10 +307,6 @@ struct cpufreq_driver {
/* define one out of two */
int (*setpolicy)(struct cpufreq_policy *policy);
- /*
- * On failure, should always restore frequency to policy->restore_freq
- * (i.e. old freq).
- */
int (*target)(struct cpufreq_policy *policy,
unsigned int target_freq,
unsigned int relation); /* Deprecated */