Re: [PATCH 02/13] ACPI: CPPC: Fix doxygen comments

From: Sudeep Holla
Date: Wed Jul 14 2021 - 11:13:13 EST


On Wed, Jul 14, 2021 at 02:20:05PM +0200, Rafael J. Wysocki wrote:
> On Thu, Jul 8, 2021 at 8:09 PM Sudeep Holla <sudeep.holla@xxxxxxx> wrote:
> >
> > Clang complains about doxygen comments too with W=1 in the build.
> >
> > | drivers/acpi/cppc_acpi.c:560: warning: Function parameter or member
> > | 'pcc_ss_id' not described in 'pcc_data_alloc'
> > | drivers/acpi/cppc_acpi.c:1343: warning: Function parameter or member
> > | 'cpu_num' not described in 'cppc_get_transition_latency'
> >
> > Fix it.
> >
> > Signed-off-by: Sudeep Holla <sudeep.holla@xxxxxxx>
> > ---
> > drivers/acpi/cppc_acpi.c | 7 +++++++
> > 1 file changed, 7 insertions(+)
> >
> > diff --git a/drivers/acpi/cppc_acpi.c b/drivers/acpi/cppc_acpi.c
> > index a4d4eebba1da..eb5685167d19 100644
> > --- a/drivers/acpi/cppc_acpi.c
> > +++ b/drivers/acpi/cppc_acpi.c
> > @@ -562,6 +562,8 @@ bool __weak cpc_ffh_supported(void)
> > /**
> > * pcc_data_alloc() - Allocate the pcc_data memory for pcc subspace
> > *
>
> I would drop this empty line (and analogously below).
>

Sure

> > + * @pcc_ss_id: PCC Subspace channel identifier
> > + *
> > * Check and allocate the cppc_pcc_data memory.
> > * In some processor configurations it is possible that same subspace
> > * is shared between multiple CPUs. This is seen especially in CPUs
> > @@ -1347,10 +1349,15 @@ EXPORT_SYMBOL_GPL(cppc_set_perf);
> > /**
> > * cppc_get_transition_latency - returns frequency transition latency in ns
> > *
> > + * @cpu_num: Logical index of the CPU for which latencty is requested
> > + *
> > * ACPI CPPC does not explicitly specify how a platform can specify the
> > * transition latency for performance change requests. The closest we have
> > * is the timing information from the PCCT tables which provides the info
> > * on the number and frequency of PCC commands the platform can handle.
> > + *
> > + * Returns: frequency transition latency on success or CPUFREQ_ETERNAL on
> > + * failure
>
> Is this change needed? The one-line summary already says this.
>

Right, not required. I must have got confused with other place that expected
return summary.

--
Regards,
Sudeep