| Message ID | 3120e4db4ae3bc014d198a206f46be1305ec65e8.1519620578.git.viresh.kumar@linaro.org (mailing list archive) |
|---|---|
| State | Not Applicable |
| Headers | show |
| Series | cpufreq: Stop validating cpufreq table in drivers | expand |
Viresh Kumar <viresh.kumar@linaro.org> writes: > Subject: Re: [PATCH 15/27] cpufreq: powerenv: Don't validate the frequency table twice ^ powernv > The cpufreq core is already validating the CPU frequency table after > calling the ->init() callback of the cpufreq drivers and the drivers > don't need to do the same anymore. Though they need to set the > policy->freq_table field directly from the ->init() callback now. > > Stop validating the frequency table from powerenv driver. > > Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org> > --- > drivers/cpufreq/powernv-cpufreq.c | 11 +++-------- > 1 file changed, 3 insertions(+), 8 deletions(-) > > diff --git a/drivers/cpufreq/powernv-cpufreq.c b/drivers/cpufreq/powernv-cpufreq.c > index 29cdec198657..0591874856d3 100644 > --- a/drivers/cpufreq/powernv-cpufreq.c > +++ b/drivers/cpufreq/powernv-cpufreq.c > @@ -812,7 +812,7 @@ static int powernv_cpufreq_target_index(struct cpufreq_policy *policy, > > static int powernv_cpufreq_cpu_init(struct cpufreq_policy *policy) > { > - int base, i, ret; > + int base, i; > struct kernfs_node *kn; > struct global_pstate_info *gpstates; Confusingly this function has two variables called ret, but the other one is declared inside an if block below in context not shown. So this hunk is correct. > @@ -848,15 +848,10 @@ static int powernv_cpufreq_cpu_init(struct cpufreq_policy *policy) > gpstates->timer.expires = jiffies + > msecs_to_jiffies(GPSTATE_TIMER_INTERVAL); > spin_lock_init(&gpstates->gpstate_lock); > - ret = cpufreq_table_validate_and_show(policy, powernv_freqs); > - > - if (ret < 0) { > - kfree(policy->driver_data); > - return ret; > - } > > + policy->freq_table = powernv_freqs; > policy->fast_switch_possible = true; > - return ret; > + return 0; > } LGTM. cheers
On 26-02-18, 22:53, Michael Ellerman wrote: > Viresh Kumar <viresh.kumar@linaro.org> writes: > > Subject: Re: [PATCH 15/27] cpufreq: powerenv: Don't validate the frequency table twice > ^ > powernv > > > The cpufreq core is already validating the CPU frequency table after > > calling the ->init() callback of the cpufreq drivers and the drivers > > don't need to do the same anymore. Though they need to set the > > policy->freq_table field directly from the ->init() callback now. > > > > Stop validating the frequency table from powerenv driver. powernv :) Will fix both of them.
Viresh Kumar <viresh.kumar@linaro.org> writes: > On 26-02-18, 22:53, Michael Ellerman wrote: >> Viresh Kumar <viresh.kumar@linaro.org> writes: >> > Subject: Re: [PATCH 15/27] cpufreq: powerenv: Don't validate the frequency table twice >> ^ >> powernv >> >> > The cpufreq core is already validating the CPU frequency table after >> > calling the ->init() callback of the cpufreq drivers and the drivers >> > don't need to do the same anymore. Though they need to set the >> > policy->freq_table field directly from the ->init() callback now. >> > >> > Stop validating the frequency table from powerenv driver. > > powernv :) > > Will fix both of them. Thanks :) cheers
diff --git a/drivers/cpufreq/powernv-cpufreq.c b/drivers/cpufreq/powernv-cpufreq.c index 29cdec198657..0591874856d3 100644 --- a/drivers/cpufreq/powernv-cpufreq.c +++ b/drivers/cpufreq/powernv-cpufreq.c @@ -812,7 +812,7 @@ static int powernv_cpufreq_target_index(struct cpufreq_policy *policy, static int powernv_cpufreq_cpu_init(struct cpufreq_policy *policy) { - int base, i, ret; + int base, i; struct kernfs_node *kn; struct global_pstate_info *gpstates; @@ -848,15 +848,10 @@ static int powernv_cpufreq_cpu_init(struct cpufreq_policy *policy) gpstates->timer.expires = jiffies + msecs_to_jiffies(GPSTATE_TIMER_INTERVAL); spin_lock_init(&gpstates->gpstate_lock); - ret = cpufreq_table_validate_and_show(policy, powernv_freqs); - - if (ret < 0) { - kfree(policy->driver_data); - return ret; - } + policy->freq_table = powernv_freqs; policy->fast_switch_possible = true; - return ret; + return 0; } static int powernv_cpufreq_cpu_exit(struct cpufreq_policy *policy)
The cpufreq core is already validating the CPU frequency table after calling the ->init() callback of the cpufreq drivers and the drivers don't need to do the same anymore. Though they need to set the policy->freq_table field directly from the ->init() callback now. Stop validating the frequency table from powerenv driver. Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org> --- drivers/cpufreq/powernv-cpufreq.c | 11 +++-------- 1 file changed, 3 insertions(+), 8 deletions(-)