diff --git a/services/audiopolicy/common/managerdefinitions/src/AudioPolicyMix.cpp b/services/audiopolicy/common/managerdefinitions/src/AudioPolicyMix.cpp
index 83e0108..7ee75c7 100644
--- a/services/audiopolicy/common/managerdefinitions/src/AudioPolicyMix.cpp
+++ b/services/audiopolicy/common/managerdefinitions/src/AudioPolicyMix.cpp
@@ -295,6 +295,7 @@
     ALOGV("getOutputForAttr() querying %zu mixes:", size());
     primaryMix.clear();
     bool mixesDisallowsRequestedDevice = false;
+    const bool isMmapRequested = (flags & AUDIO_OUTPUT_FLAG_MMAP_NOIRQ);
     for (size_t i = 0; i < size(); i++) {
         sp<AudioPolicyMix> policyMix = itemAt(i);
         const bool primaryOutputMix = !is_mix_loopback_render(policyMix->mRouteFlags);
@@ -305,6 +306,17 @@
             mixesDisallowsRequestedDevice = true;
         }
 
+        if (!primaryOutputMix && isMmapRequested) {
+            // AAudio does not support MMAP_NO_IRQ loopback render, and there is no way with
+            // the current MmapStreamInterface::start to reject a specific client added to a shared
+            // mmap stream.
+            // As a result all MMAP_NOIRQ requests have to be rejected when an loopback render
+            // policy is present. That ensures no shared mmap stream is used when an loopback
+            // render policy is registered.
+            ALOGD("%s: Rejecting MMAP_NOIRQ request due to LOOPBACK|RENDER mix present.", __func__);
+            return INVALID_OPERATION;
+        }
+
         if (primaryOutputMix && primaryMix != nullptr) {
             ALOGV("%s: Skiping %zu: Primary output already found", __func__, i);
             continue; // Primary output already found
@@ -315,7 +327,7 @@
             continue; // skip the mix
         }
 
-        if (flags & AUDIO_OUTPUT_FLAG_MMAP_NOIRQ) {
+        if (isMmapRequested) {
             if (is_mix_loopback(policyMix->mRouteFlags)) {
                 // AAudio MMAP_NOIRQ streams cannot be routed to loopback/loopback+render
                 // using dynamic audio policy.
@@ -323,10 +335,11 @@
                       "audio policy mix.", __func__);
                 return INVALID_OPERATION;
             }
-            if (mixDevice != nullptr && !mixDevice->isMmap()) {
+            if (mixDevice != nullptr) {
+                // TODO(b/301619865): Only disallow the device that doesn't support MMAP.
                 ALOGD("%s: Rejecting MMAP_NOIRQ request matched to dynamic audio policy "
-                      "mix pointing to device %s which doesn't support mmap", __func__,
-                      mixDevice->toString(false).c_str());
+                      "mix pointing to device %s which the mmap support is unknown at this moment",
+                      __func__, mixDevice->toString(false).c_str());
                 return INVALID_OPERATION;
             }
         }
diff --git a/services/audiopolicy/tests/audiopolicymanager_tests.cpp b/services/audiopolicy/tests/audiopolicymanager_tests.cpp
index 110e6bf..6eb59ad 100644
--- a/services/audiopolicy/tests/audiopolicymanager_tests.cpp
+++ b/services/audiopolicy/tests/audiopolicymanager_tests.cpp
@@ -2001,7 +2001,9 @@
                                         /*deviceAddress=*/"remote_submix_media"),
                         DPMmapTestParam(MIX_ROUTE_FLAG_LOOP_BACK_AND_RENDER,
                                         AUDIO_DEVICE_OUT_REMOTE_SUBMIX,
-                                        /*deviceAddress=*/"remote_submix_media")));
+                                        /*deviceAddress=*/"remote_submix_media"),
+                        DPMmapTestParam(MIX_ROUTE_FLAG_RENDER, AUDIO_DEVICE_OUT_SPEAKER,
+                                        /*deviceAddress=*/"")));
 
 class AudioPolicyManagerTestDPMixRecordInjection : public AudioPolicyManagerTestDynamicPolicy,
         public testing::WithParamInterface<DPTestParam> {