From bef804c6be9ca483a755d175e34651629515f16b Mon Sep 17 00:00:00 2001
From: Ashish <104561745+aashu216@users.noreply.github.com>
Date: Thu, 30 May 2024 23:51:35 +0530
Subject: [PATCH] [utils] add API to reset/clear linked list of enh-ack link
 metrics (#10294)

Enh-ack link metrics required to reset/clear when radio(RCP) is reset to
clear existing data. To support it, added API to reset/clear linked list
of enh-ack link metrics.

Signed-off-by: Ashishkumar Vara <ashish.vara@nxp.com>
---
 examples/platforms/utils/link_metrics.cpp | 12 +++++++++++-
 examples/platforms/utils/link_metrics.h   |  6 ++++++
 2 files changed, 17 insertions(+), 1 deletion(-)

diff --git a/examples/platforms/utils/link_metrics.cpp b/examples/platforms/utils/link_metrics.cpp
index 301fc08c5..e62c4f595 100644
--- a/examples/platforms/utils/link_metrics.cpp
+++ b/examples/platforms/utils/link_metrics.cpp
@@ -177,7 +177,11 @@ static inline bool IsLinkMetricsClear(otLinkMetrics aLinkMetrics)
     return !aLinkMetrics.mPduCount && !aLinkMetrics.mLqi && !aLinkMetrics.mLinkMargin && !aLinkMetrics.mRssi;
 }
 
-void otLinkMetricsInit(int8_t aNoiseFloor) { sNoiseFloor = aNoiseFloor; }
+void otLinkMetricsInit(int8_t aNoiseFloor)
+{
+    sNoiseFloor = aNoiseFloor;
+    otLinkMetricsResetEnhAckProbing();
+}
 
 otError otLinkMetricsConfigureEnhAckProbing(otShortAddress      aShortAddress,
                                             const otExtAddress *aExtAddress,
@@ -257,4 +261,10 @@ uint8_t otLinkMetricsEnhAckGetDataLen(const otMacAddress *aMacAddress)
 exit:
     return len;
 }
+
+void otLinkMetricsResetEnhAckProbing(void)
+{
+    GetLinkMetricsDataInfoActiveList().Clear();
+    GetLinkMetricsDataInfoPool().FreeAll();
+}
 #endif // OPENTHREAD_CONFIG_MLE_LINK_METRICS_INITIATOR_ENABLE || OPENTHREAD_CONFIG_MLE_LINK_METRICS_SUBJECT_ENABLE
diff --git a/examples/platforms/utils/link_metrics.h b/examples/platforms/utils/link_metrics.h
index 1cde18b9f..610dfd3d9 100644
--- a/examples/platforms/utils/link_metrics.h
+++ b/examples/platforms/utils/link_metrics.h
@@ -107,6 +107,12 @@ uint8_t otLinkMetricsEnhAckGenData(const otMacAddress *aMacAddress, uint8_t aLqi
  */
 uint8_t otLinkMetricsEnhAckGetDataLen(const otMacAddress *aMacAddress);
 
+/**
+ * This method resets Enhanced-ACK Based Probing data.
+ *
+ */
+void otLinkMetricsResetEnhAckProbing(void);
+
 #ifdef __cplusplus
 } // extern "C"
 #endif