diff --git a/Tethering/tests/unit/src/com/android/networkstack/tethering/OffloadControllerTest.java b/Tethering/tests/unit/src/com/android/networkstack/tethering/OffloadControllerTest.java
index d800816..fc34585 100644
--- a/Tethering/tests/unit/src/com/android/networkstack/tethering/OffloadControllerTest.java
+++ b/Tethering/tests/unit/src/com/android/networkstack/tethering/OffloadControllerTest.java
@@ -26,6 +26,7 @@
 import static android.net.RouteInfo.RTN_UNICAST;
 import static android.provider.Settings.Global.TETHER_OFFLOAD_DISABLED;
 
+import static com.android.modules.utils.build.SdkLevel.isAtLeastS;
 import static com.android.networkstack.tethering.OffloadController.StatsType.STATS_PER_IFACE;
 import static com.android.networkstack.tethering.OffloadController.StatsType.STATS_PER_UID;
 import static com.android.networkstack.tethering.OffloadHardwareInterface.ForwardedStats;
@@ -66,6 +67,7 @@
 import android.net.RouteInfo;
 import android.net.netstats.provider.NetworkStatsProvider;
 import android.net.util.SharedLog;
+import android.os.Build;
 import android.os.Handler;
 import android.os.test.TestLooper;
 import android.provider.Settings;
@@ -76,10 +78,13 @@
 import androidx.test.runner.AndroidJUnit4;
 
 import com.android.internal.util.test.FakeSettingsProvider;
+import com.android.testutils.DevSdkIgnoreRule;
+import com.android.testutils.DevSdkIgnoreRule.IgnoreUpTo;
 import com.android.testutils.TestableNetworkStatsProviderCbBinder;
 
 import org.junit.After;
 import org.junit.Before;
+import org.junit.Rule;
 import org.junit.Test;
 import org.junit.runner.RunWith;
 import org.mockito.ArgumentCaptor;
@@ -95,6 +100,9 @@
 @RunWith(AndroidJUnit4.class)
 @SmallTest
 public class OffloadControllerTest {
+    @Rule
+    public final DevSdkIgnoreRule mIgnoreRule = new DevSdkIgnoreRule();
+
     private static final String RNDIS0 = "test_rndis0";
     private static final String RMNET0 = "test_rmnet_data0";
     private static final String WLAN0 = "test_wlan0";
@@ -511,8 +519,8 @@
     public void testSetDataWarningAndLimit() throws Exception {
         // Verify the OffloadController is called by R framework, where the framework doesn't send
         // warning.
+        // R only uses HAL 1.0.
         checkSetDataWarningAndLimit(false, OFFLOAD_HAL_VERSION_1_0);
-        checkSetDataWarningAndLimit(false, OFFLOAD_HAL_VERSION_1_1);
         // Verify the OffloadController is called by S+ framework, where the framework sends
         // warning along with limit.
         checkSetDataWarningAndLimit(true, OFFLOAD_HAL_VERSION_1_0);
@@ -650,17 +658,26 @@
     }
 
     @Test
-    public void testDataWarningAndLimitCallback() throws Exception {
+    public void testDataWarningAndLimitCallback_LimitReached() throws Exception {
         enableOffload();
         startOffloadController(OFFLOAD_HAL_VERSION_1_0, true /*expectStart*/);
 
-        OffloadHardwareInterface.ControlCallback callback = mControlCallbackCaptor.getValue();
+        final OffloadHardwareInterface.ControlCallback callback = mControlCallbackCaptor.getValue();
         callback.onStoppedLimitReached();
         mTetherStatsProviderCb.expectNotifyStatsUpdated();
-        mTetherStatsProviderCb.expectNotifyWarningOrLimitReached();
 
+        if (isAtLeastS()) {
+            mTetherStatsProviderCb.expectNotifyWarningOrLimitReached();
+        } else {
+            mTetherStatsProviderCb.expectLegacyNotifyLimitReached();
+        }
+    }
+
+    @Test
+    @IgnoreUpTo(Build.VERSION_CODES.R)  // HAL 1.1 is only supported from S
+    public void testDataWarningAndLimitCallback_WarningReached() throws Exception {
         startOffloadController(OFFLOAD_HAL_VERSION_1_1, true /*expectStart*/);
-        callback = mControlCallbackCaptor.getValue();
+        final OffloadHardwareInterface.ControlCallback callback = mControlCallbackCaptor.getValue();
         callback.onWarningReached();
         mTetherStatsProviderCb.expectNotifyStatsUpdated();
         mTetherStatsProviderCb.expectNotifyWarningOrLimitReached();