linux-kernel - [PATCH v2 02/14] ACPI: CPPC: Fix kernel doc warnings

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Date:   Fri, 17 Sep 2021 14:33:45 +0100
From:   Sudeep Holla <sudeep.holla@....com>
To:     linux-acpi@...r.kernel.org, linux-kernel@...r.kernel.org
Cc:     Sudeep Holla <sudeep.holla@....com>,
        Cristian Marussi <cristian.marussi@....com>,
        "Rafael J . Wysocki" <rjw@...ysocki.net>,
        Jassi Brar <jassisinghbrar@...il.com>
Subject: [PATCH v2 02/14] ACPI: CPPC: Fix kernel doc warnings

Kernel doc validation script is unhappy and complains with the below set
of warnings.

  | 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@....com>
---
 drivers/acpi/cppc_acpi.c | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/drivers/acpi/cppc_acpi.c b/drivers/acpi/cppc_acpi.c
index bd482108310c..e195123e26c0 100644
--- a/drivers/acpi/cppc_acpi.c
+++ b/drivers/acpi/cppc_acpi.c
@@ -561,6 +561,7 @@ bool __weak cpc_ffh_supported(void)
 
 /**
  * pcc_data_alloc() - Allocate the pcc_data memory for pcc subspace
+ * @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
@@ -1360,12 +1361,16 @@ int cppc_set_perf(int cpu, struct cppc_perf_ctrls *perf_ctrls)
 EXPORT_SYMBOL_GPL(cppc_set_perf);
 
 /**
- * cppc_get_transition_latency - returns frequency transition latency in ns
+ * cppc_get_transition_latency - Provides 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
  */
 unsigned int cppc_get_transition_latency(int cpu_num)
 {
-- 
2.25.1