From 714aeeb700f95b3c7772b5609eb79ebad8f1bb3b Mon Sep 17 00:00:00 2001
From: tanyanquan <tanyanquan@espressif.com>
Date: Sat, 15 Nov 2025 08:17:19 +0800
Subject: [PATCH] [mac] force rx_on_when_idle to true during active scan
 (#12147)

This commit forces mLinks.SetRxOnWhenIdle to true when performing an
active scan.

Previously, when we have an SED which is connected to a thread network
(i.e. state == child), it is unable to perform scan command because rx
is turned off.
---
 src/core/mac/mac.cpp | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/src/core/mac/mac.cpp b/src/core/mac/mac.cpp
index edc455531..17d5080a2 100644
--- a/src/core/mac/mac.cpp
+++ b/src/core/mac/mac.cpp
@@ -293,10 +293,12 @@ void Mac::PerformActiveScan(void)
     if (UpdateScanChannel() == kErrorNone)
     {
         // If there are more channels to scan, send the beacon request.
+        mLinks.SetRxOnWhenIdle(true);
         BeginTransmit();
     }
     else
     {
+        mLinks.SetRxOnWhenIdle(mRxOnWhenIdle);
         mLinks.SetPanId(mPanId);
         FinishOperation();
         ReportActiveScanResult(nullptr);