| Message ID | 20201106092243.15574-1-zhuguangqing83@gmail.com |
|---|---|
| State | New |
| Headers | show |
| Series | [v2] thermal/drivers/cpufreq_cooling: Update cpufreq_state only if state has changed | expand |
On 06-11-20, 17:22, zhuguangqing83@gmail.com wrote: > From: Zhuguangqing <zhuguangqing@xiaomi.com> > > If state has not changed successfully and we updated cpufreq_state, > next time when the new state is equal to cpufreq_state (not changed > successfully last time), we will return directly and miss a > freq_qos_update_request() that should have been. > > Fixes: 5130802ddbb1 ("thermal: cpu_cooling: Switch to QoS requests for freq limits") > Cc: v5.4+ <stable@vger.kernel.org> # v5.4+ > Signed-off-by: Zhuguangqing <zhuguangqing@xiaomi.com> > Acked-by: Viresh Kumar <viresh.kumar@linaro.org> > --- > v2: > - Add Fixes: 5130802ddbb1 in log. > - Add Cc: v5.4+ <stable@vger.kernel.org> # v5.4+ in log. > - Add Acked-by: Viresh Kumar <viresh.kumar@linaro.org> in log. > - Delete an extra blank line. > --- > drivers/thermal/cpufreq_cooling.c | 4 +--- > 1 file changed, 1 insertion(+), 3 deletions(-) > > diff --git a/drivers/thermal/cpufreq_cooling.c b/drivers/thermal/cpufreq_cooling.c > index cc2959f22f01..612f063c1cfc 100644 > --- a/drivers/thermal/cpufreq_cooling.c > +++ b/drivers/thermal/cpufreq_cooling.c > @@ -438,13 +438,11 @@ static int cpufreq_set_cur_state(struct thermal_cooling_device *cdev, > if (cpufreq_cdev->cpufreq_state == state) > return 0; > > - cpufreq_cdev->cpufreq_state = state; > - > frequency = get_state_freq(cpufreq_cdev, state); > > ret = freq_qos_update_request(&cpufreq_cdev->qos_req, frequency); > - > if (ret > 0) { > + cpufreq_cdev->cpufreq_state = state; > cpus = cpufreq_cdev->policy->cpus; > max_capacity = arch_scale_cpu_capacity(cpumask_first(cpus)); > capacity = frequency * max_capacity; Thanks Zhuguangqing.
On 06/11/2020 10:22, zhuguangqing83@gmail.com wrote: > From: Zhuguangqing <zhuguangqing@xiaomi.com> > > If state has not changed successfully and we updated cpufreq_state, > next time when the new state is equal to cpufreq_state (not changed > successfully last time), we will return directly and miss a > freq_qos_update_request() that should have been. > > Fixes: 5130802ddbb1 ("thermal: cpu_cooling: Switch to QoS requests for freq limits") > Cc: v5.4+ <stable@vger.kernel.org> # v5.4+ > Signed-off-by: Zhuguangqing <zhuguangqing@xiaomi.com> > Acked-by: Viresh Kumar <viresh.kumar@linaro.org> > --- Applied, thanks -- <http://www.linaro.org/> Linaro.org │ Open source software for ARM SoCs Follow Linaro: <http://www.facebook.com/pages/Linaro> Facebook | <http://twitter.com/#!/linaroorg> Twitter | <http://www.linaro.org/linaro-blog/> Blog
diff --git a/drivers/thermal/cpufreq_cooling.c b/drivers/thermal/cpufreq_cooling.c index cc2959f22f01..612f063c1cfc 100644 --- a/drivers/thermal/cpufreq_cooling.c +++ b/drivers/thermal/cpufreq_cooling.c @@ -438,13 +438,11 @@ static int cpufreq_set_cur_state(struct thermal_cooling_device *cdev, if (cpufreq_cdev->cpufreq_state == state) return 0; - cpufreq_cdev->cpufreq_state = state; - frequency = get_state_freq(cpufreq_cdev, state); ret = freq_qos_update_request(&cpufreq_cdev->qos_req, frequency); - if (ret > 0) { + cpufreq_cdev->cpufreq_state = state; cpus = cpufreq_cdev->policy->cpus; max_capacity = arch_scale_cpu_capacity(cpumask_first(cpus)); capacity = frequency * max_capacity;