| Message ID | 20200714145049.2496163-13-lee.jones@linaro.org |
|---|---|
| State | Superseded |
| Headers | show |
| Series | Rid W=1 warnings in CPUFreq | expand |
On Tue, Jul 14, 2020 at 4:51 PM Lee Jones <lee.jones@linaro.org> wrote: > > Fixes the following W=1 kernel build warning(s): > > drivers/cpufreq/intel_pstate.c:293: warning: Function parameter or member 'get_aperf_mperf_shift' not described in 'pstate_funcs' > > Cc: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com> > Cc: Len Brown <lenb@kernel.org> > Cc: Dirk Brandewie <dirk.j.brandewie@intel.com> > Signed-off-by: Lee Jones <lee.jones@linaro.org> > --- > drivers/cpufreq/intel_pstate.c | 2 ++ > 1 file changed, 2 insertions(+) > > diff --git a/drivers/cpufreq/intel_pstate.c b/drivers/cpufreq/intel_pstate.c > index 44c7b4677675d..f92fc69c87269 100644 > --- a/drivers/cpufreq/intel_pstate.c > +++ b/drivers/cpufreq/intel_pstate.c > @@ -275,6 +275,8 @@ static struct cpudata **all_cpu_data; > * @get_min: Callback to get minimum P state > * @get_turbo: Callback to get turbo P state > * @get_scaling: Callback to get frequency scaling factor > + * @get_aperf_mperf_shift: Callback to get the number of clock cycles after > + * aperf, merf is incremented This added description is inaccurate. It should be something like "Callback to get the APERF vs MPERF frequency difference". > * @get_val: Callback to convert P state to actual MSR write value > * @get_vid: Callback to get VID data for Atom platforms > * > --
On Tue, 14 Jul 2020, Rafael J. Wysocki wrote: > On Tue, Jul 14, 2020 at 4:51 PM Lee Jones <lee.jones@linaro.org> wrote: > > > > Fixes the following W=1 kernel build warning(s): > > > > drivers/cpufreq/intel_pstate.c:293: warning: Function parameter or member 'get_aperf_mperf_shift' not described in 'pstate_funcs' > > > > Cc: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com> > > Cc: Len Brown <lenb@kernel.org> > > Cc: Dirk Brandewie <dirk.j.brandewie@intel.com> > > Signed-off-by: Lee Jones <lee.jones@linaro.org> > > --- > > drivers/cpufreq/intel_pstate.c | 2 ++ > > 1 file changed, 2 insertions(+) > > > > diff --git a/drivers/cpufreq/intel_pstate.c b/drivers/cpufreq/intel_pstate.c > > index 44c7b4677675d..f92fc69c87269 100644 > > --- a/drivers/cpufreq/intel_pstate.c > > +++ b/drivers/cpufreq/intel_pstate.c > > @@ -275,6 +275,8 @@ static struct cpudata **all_cpu_data; > > * @get_min: Callback to get minimum P state > > * @get_turbo: Callback to get turbo P state > > * @get_scaling: Callback to get frequency scaling factor > > + * @get_aperf_mperf_shift: Callback to get the number of clock cycles after > > + * aperf, merf is incremented > > This added description is inaccurate. It should be something like > "Callback to get the APERF vs MPERF frequency difference". Does that mean the description of @aperf_mperf_shift above is also incorrect? > > * @get_val: Callback to convert P state to actual MSR write value > > * @get_vid: Callback to get VID data for Atom platforms > > * > > -- -- Lee Jones [李琼斯] Senior Technical Lead - Developer Services Linaro.org │ Open source software for Arm SoCs Follow Linaro: Facebook | Twitter | Blog
On Tue, Jul 14, 2020 at 11:28 PM Lee Jones <lee.jones@linaro.org> wrote: > > On Tue, 14 Jul 2020, Rafael J. Wysocki wrote: > > > On Tue, Jul 14, 2020 at 4:51 PM Lee Jones <lee.jones@linaro.org> wrote: > > > > > > Fixes the following W=1 kernel build warning(s): > > > > > > drivers/cpufreq/intel_pstate.c:293: warning: Function parameter or member 'get_aperf_mperf_shift' not described in 'pstate_funcs' > > > > > > Cc: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com> > > > Cc: Len Brown <lenb@kernel.org> > > > Cc: Dirk Brandewie <dirk.j.brandewie@intel.com> > > > Signed-off-by: Lee Jones <lee.jones@linaro.org> > > > --- > > > drivers/cpufreq/intel_pstate.c | 2 ++ > > > 1 file changed, 2 insertions(+) > > > > > > diff --git a/drivers/cpufreq/intel_pstate.c b/drivers/cpufreq/intel_pstate.c > > > index 44c7b4677675d..f92fc69c87269 100644 > > > --- a/drivers/cpufreq/intel_pstate.c > > > +++ b/drivers/cpufreq/intel_pstate.c > > > @@ -275,6 +275,8 @@ static struct cpudata **all_cpu_data; > > > * @get_min: Callback to get minimum P state > > > * @get_turbo: Callback to get turbo P state > > > * @get_scaling: Callback to get frequency scaling factor > > > + * @get_aperf_mperf_shift: Callback to get the number of clock cycles after > > > + * aperf, merf is incremented > > > > This added description is inaccurate. It should be something like > > "Callback to get the APERF vs MPERF frequency difference". > > Does that mean the description of @aperf_mperf_shift above is also > incorrect? It is slightly unclear, let me improve it. Thanks!
diff --git a/drivers/cpufreq/intel_pstate.c b/drivers/cpufreq/intel_pstate.c index 44c7b4677675d..f92fc69c87269 100644 --- a/drivers/cpufreq/intel_pstate.c +++ b/drivers/cpufreq/intel_pstate.c @@ -275,6 +275,8 @@ static struct cpudata **all_cpu_data; * @get_min: Callback to get minimum P state * @get_turbo: Callback to get turbo P state * @get_scaling: Callback to get frequency scaling factor + * @get_aperf_mperf_shift: Callback to get the number of clock cycles after + * aperf, merf is incremented * @get_val: Callback to convert P state to actual MSR write value * @get_vid: Callback to get VID data for Atom platforms *
Fixes the following W=1 kernel build warning(s): drivers/cpufreq/intel_pstate.c:293: warning: Function parameter or member 'get_aperf_mperf_shift' not described in 'pstate_funcs' Cc: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com> Cc: Len Brown <lenb@kernel.org> Cc: Dirk Brandewie <dirk.j.brandewie@intel.com> Signed-off-by: Lee Jones <lee.jones@linaro.org> --- drivers/cpufreq/intel_pstate.c | 2 ++ 1 file changed, 2 insertions(+) -- 2.25.1