diff --git a/audio/core/2.0/default/Device.cpp b/audio/core/2.0/default/Device.cpp
index b67203d..221ea5c 100644
--- a/audio/core/2.0/default/Device.cpp
+++ b/audio/core/2.0/default/Device.cpp
@@ -21,7 +21,7 @@
 #include "core/2.0/default/Conversions.h"
 #include "core/2.0/default/StreamIn.h"
 #include "core/2.0/default/StreamOut.h"
-#include "core/2.0/default/Util.h"
+#include "core/all-versions/default/Util.h"
 
 #define AUDIO_HAL_VERSION V2_0
 #include <core/all-versions/default/Device.impl.h>
diff --git a/audio/core/2.0/default/ParametersUtil.cpp b/audio/core/2.0/default/ParametersUtil.cpp
index 963e291..33a3ad9 100644
--- a/audio/core/2.0/default/ParametersUtil.cpp
+++ b/audio/core/2.0/default/ParametersUtil.cpp
@@ -15,7 +15,6 @@
  */
 
 #include "core/2.0/default/ParametersUtil.h"
-#include "core/2.0/default/Util.h"
 
 #define AUDIO_HAL_VERSION V2_0
 #include <core/all-versions/default/ParametersUtil.impl.h>
diff --git a/audio/core/2.0/default/PrimaryDevice.cpp b/audio/core/2.0/default/PrimaryDevice.cpp
index decaa14..ce57403 100644
--- a/audio/core/2.0/default/PrimaryDevice.cpp
+++ b/audio/core/2.0/default/PrimaryDevice.cpp
@@ -17,7 +17,7 @@
 #define LOG_TAG "PrimaryDeviceHAL"
 
 #include "core/2.0/default/PrimaryDevice.h"
-#include "core/2.0/default/Util.h"
+#include "core/all-versions/default/Util.h"
 
 #define AUDIO_HAL_VERSION V2_0
 #include <core/all-versions/default/PrimaryDevice.impl.h>
diff --git a/audio/core/2.0/default/Stream.cpp b/audio/core/2.0/default/Stream.cpp
index 0863a7c..69ee659 100644
--- a/audio/core/2.0/default/Stream.cpp
+++ b/audio/core/2.0/default/Stream.cpp
@@ -19,7 +19,6 @@
 #include "core/2.0/default/Stream.h"
 #include "common/all-versions/default/EffectMap.h"
 #include "core/2.0/default/Conversions.h"
-#include "core/2.0/default/Util.h"
 
 #define AUDIO_HAL_VERSION V2_0
 #include <core/all-versions/default/Stream.impl.h>
diff --git a/audio/core/2.0/default/StreamIn.cpp b/audio/core/2.0/default/StreamIn.cpp
index 2021df1..6b8776e 100644
--- a/audio/core/2.0/default/StreamIn.cpp
+++ b/audio/core/2.0/default/StreamIn.cpp
@@ -17,7 +17,7 @@
 #define LOG_TAG "StreamInHAL"
 
 #include "core/2.0/default/StreamIn.h"
-#include "core/2.0/default/Util.h"
+#include "core/all-versions/default/Util.h"
 
 #define AUDIO_HAL_VERSION V2_0
 #include <core/all-versions/default/StreamIn.impl.h>
diff --git a/audio/core/2.0/default/StreamOut.cpp b/audio/core/2.0/default/StreamOut.cpp
index 940a251..7f1461a 100644
--- a/audio/core/2.0/default/StreamOut.cpp
+++ b/audio/core/2.0/default/StreamOut.cpp
@@ -17,7 +17,7 @@
 #define LOG_TAG "StreamOutHAL"
 
 #include "core/2.0/default/StreamOut.h"
-#include "core/2.0/default/Util.h"
+#include "core/all-versions/default/Util.h"
 
 #define AUDIO_HAL_VERSION V2_0
 #include <core/all-versions/default/StreamOut.impl.h>
diff --git a/audio/core/2.0/default/include/core/2.0/default/Util.h b/audio/core/2.0/default/include/core/2.0/default/Util.h
deleted file mode 100644
index 858cd3b..0000000
--- a/audio/core/2.0/default/include/core/2.0/default/Util.h
+++ /dev/null
@@ -1,26 +0,0 @@
-/*
- * Copyright (C) 2017 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef ANDROID_HARDWARE_AUDIO_V2_0_UTIL_H
-#define ANDROID_HARDWARE_AUDIO_V2_0_UTIL_H
-
-#include <android/hardware/audio/2.0/types.h>
-
-#define AUDIO_HAL_VERSION V2_0
-#include <core/all-versions/default/Util.h>
-#undef AUDIO_HAL_VERSION
-
-#endif  // ANDROID_HARDWARE_AUDIO_V2_0_UTIL_H
diff --git a/audio/core/4.0/default/Device.cpp b/audio/core/4.0/default/Device.cpp
index b33434e..26f9ab4 100644
--- a/audio/core/4.0/default/Device.cpp
+++ b/audio/core/4.0/default/Device.cpp
@@ -21,7 +21,7 @@
 #include "core/4.0/default/Conversions.h"
 #include "core/4.0/default/StreamIn.h"
 #include "core/4.0/default/StreamOut.h"
-#include "core/4.0/default/Util.h"
+#include "core/all-versions/default/Util.h"
 
 #define AUDIO_HAL_VERSION V4_0
 #include <core/all-versions/default/Device.impl.h>
diff --git a/audio/core/4.0/default/ParametersUtil.cpp b/audio/core/4.0/default/ParametersUtil.cpp
index 2cc9fb5..5c1b1c4 100644
--- a/audio/core/4.0/default/ParametersUtil.cpp
+++ b/audio/core/4.0/default/ParametersUtil.cpp
@@ -15,7 +15,6 @@
  */
 
 #include "core/4.0/default/ParametersUtil.h"
-#include "core/4.0/default/Util.h"
 
 #define AUDIO_HAL_VERSION V4_0
 #include <core/all-versions/default/ParametersUtil.impl.h>
diff --git a/audio/core/4.0/default/PrimaryDevice.cpp b/audio/core/4.0/default/PrimaryDevice.cpp
index e3e4976..0294b4d 100644
--- a/audio/core/4.0/default/PrimaryDevice.cpp
+++ b/audio/core/4.0/default/PrimaryDevice.cpp
@@ -17,7 +17,7 @@
 #define LOG_TAG "PrimaryDeviceHAL"
 
 #include "core/4.0/default/PrimaryDevice.h"
-#include "core/4.0/default/Util.h"
+#include "core/all-versions/default/Util.h"
 
 #define AUDIO_HAL_VERSION V4_0
 #include <core/all-versions/default/PrimaryDevice.impl.h>
diff --git a/audio/core/4.0/default/Stream.cpp b/audio/core/4.0/default/Stream.cpp
index b8c71de..30b3454 100644
--- a/audio/core/4.0/default/Stream.cpp
+++ b/audio/core/4.0/default/Stream.cpp
@@ -19,7 +19,6 @@
 #include "core/4.0/default/Stream.h"
 #include "common/all-versions/default/EffectMap.h"
 #include "core/4.0/default/Conversions.h"
-#include "core/4.0/default/Util.h"
 
 #define AUDIO_HAL_VERSION V4_0
 #include <core/all-versions/default/Stream.impl.h>
diff --git a/audio/core/4.0/default/StreamIn.cpp b/audio/core/4.0/default/StreamIn.cpp
index 718bd25..18719b5 100644
--- a/audio/core/4.0/default/StreamIn.cpp
+++ b/audio/core/4.0/default/StreamIn.cpp
@@ -17,7 +17,7 @@
 #define LOG_TAG "StreamInHAL"
 
 #include "core/4.0/default/StreamIn.h"
-#include "core/4.0/default/Util.h"
+#include "core/all-versions/default/Util.h"
 
 #define AUDIO_HAL_VERSION V4_0
 #include <core/all-versions/default/StreamIn.impl.h>
diff --git a/audio/core/4.0/default/StreamOut.cpp b/audio/core/4.0/default/StreamOut.cpp
index db88e40..11c8fde 100644
--- a/audio/core/4.0/default/StreamOut.cpp
+++ b/audio/core/4.0/default/StreamOut.cpp
@@ -17,7 +17,7 @@
 #define LOG_TAG "StreamOutHAL"
 
 #include "core/4.0/default/StreamOut.h"
-#include "core/4.0/default/Util.h"
+#include "core/all-versions/default/Util.h"
 
 #define AUDIO_HAL_VERSION V4_0
 #include <core/all-versions/default/StreamOut.impl.h>
diff --git a/audio/core/4.0/default/include/core/4.0/default/Util.h b/audio/core/4.0/default/include/core/4.0/default/Util.h
deleted file mode 100644
index dcdc7ee..0000000
--- a/audio/core/4.0/default/include/core/4.0/default/Util.h
+++ /dev/null
@@ -1,26 +0,0 @@
-/*
- * Copyright (C) 2017 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef ANDROID_HARDWARE_AUDIO_V4_0_UTIL_H
-#define ANDROID_HARDWARE_AUDIO_V4_0_UTIL_H
-
-#include <android/hardware/audio/4.0/types.h>
-
-#define AUDIO_HAL_VERSION V4_0
-#include <core/all-versions/default/Util.h>
-#undef AUDIO_HAL_VERSION
-
-#endif  // ANDROID_HARDWARE_AUDIO_V4_0_UTIL_H
diff --git a/audio/core/all-versions/default/include/core/all-versions/default/Device.impl.h b/audio/core/all-versions/default/include/core/all-versions/default/Device.impl.h
index 37b7124..581e1dc 100644
--- a/audio/core/all-versions/default/include/core/all-versions/default/Device.impl.h
+++ b/audio/core/all-versions/default/include/core/all-versions/default/Device.impl.h
@@ -25,6 +25,7 @@
 #include <android/log.h>
 
 using ::android::hardware::audio::common::AUDIO_HAL_VERSION::HidlUtils;
+using ::android::hardware::audio::all_versions::implementation::isGainNormalized;
 
 namespace android {
 namespace hardware {
diff --git a/audio/core/all-versions/default/include/core/all-versions/default/ParametersUtil.impl.h b/audio/core/all-versions/default/include/core/all-versions/default/ParametersUtil.impl.h
index afff2b6..3907284 100644
--- a/audio/core/all-versions/default/include/core/all-versions/default/ParametersUtil.impl.h
+++ b/audio/core/all-versions/default/include/core/all-versions/default/ParametersUtil.impl.h
@@ -149,7 +149,26 @@
 
 Result ParametersUtil::setParams(const AudioParameter& param) {
     int halStatus = halSetParameters(param.toString().string());
-    return util::analyzeStatus(halStatus);
+    switch (halStatus) {
+        case OK:
+            return Result::OK;
+        case -EINVAL:
+            return Result::INVALID_ARGUMENTS;
+        case -ENODATA:
+            return Result::INVALID_STATE;
+        case -ENODEV:
+            return Result::NOT_INITIALIZED;
+        // The rest of the API (*::analyseStatus) returns NOT_SUPPORTED
+        // when the legacy API returns -ENOSYS
+        // However the legacy API explicitly state that for get_paramers,
+        // -ENOSYS should be returned if
+        // "the implementation does not accept a parameter change while the
+        //  output is active but the parameter is acceptable otherwise"
+        case -ENOSYS:
+            return Result::INVALID_STATE;
+        default:
+            return Result::INVALID_ARGUMENTS;
+    }
 }
 
 }  // namespace implementation
diff --git a/audio/core/all-versions/default/include/core/all-versions/default/PrimaryDevice.impl.h b/audio/core/all-versions/default/include/core/all-versions/default/PrimaryDevice.impl.h
index f3809e4..9b39d9c 100644
--- a/audio/core/all-versions/default/include/core/all-versions/default/PrimaryDevice.impl.h
+++ b/audio/core/all-versions/default/include/core/all-versions/default/PrimaryDevice.impl.h
@@ -160,7 +160,7 @@
 
 // Methods from ::android::hardware::audio::AUDIO_HAL_VERSION::IPrimaryDevice follow.
 Return<Result> PrimaryDevice::setVoiceVolume(float volume) {
-    if (!isGainNormalized(volume)) {
+    if (!all_versions::implementation::isGainNormalized(volume)) {
         ALOGW("Can not set a voice volume (%f) outside [0,1]", volume);
         return Result::INVALID_ARGUMENTS;
     }
diff --git a/audio/core/all-versions/default/include/core/all-versions/default/Stream.impl.h b/audio/core/all-versions/default/include/core/all-versions/default/Stream.impl.h
index 7415112..fa0ef45 100644
--- a/audio/core/all-versions/default/include/core/all-versions/default/Stream.impl.h
+++ b/audio/core/all-versions/default/include/core/all-versions/default/Stream.impl.h
@@ -39,14 +39,35 @@
 
 // static
 Result Stream::analyzeStatus(const char* funcName, int status) {
-    return util::analyzeStatus("stream", funcName, status);
+    static const std::vector<int> empty;
+    return analyzeStatus(funcName, status, empty);
 }
 
+template <typename T>
+inline bool element_in(T e, const std::vector<T>& v) {
+    return std::find(v.begin(), v.end(), e) != v.end();
+}
 
 // static
 Result Stream::analyzeStatus(const char* funcName, int status,
                              const std::vector<int>& ignoreErrors) {
-    return util::analyzeStatus("stream", funcName, status, ignoreErrors);
+    if (status != 0 && (ignoreErrors.empty() || !element_in(-status, ignoreErrors))) {
+        ALOGW("Error from HAL stream in function %s: %s", funcName, strerror(-status));
+    }
+    switch (status) {
+        case 0:
+            return Result::OK;
+        case -EINVAL:
+            return Result::INVALID_ARGUMENTS;
+        case -ENODATA:
+            return Result::INVALID_STATE;
+        case -ENODEV:
+            return Result::NOT_INITIALIZED;
+        case -ENOSYS:
+            return Result::NOT_SUPPORTED;
+        default:
+            return Result::INVALID_STATE;
+    }
 }
 
 char* Stream::halGetParameters(const char* keys) {
diff --git a/audio/core/all-versions/default/include/core/all-versions/default/StreamIn.impl.h b/audio/core/all-versions/default/include/core/all-versions/default/StreamIn.impl.h
index 64c85ab..8774be9 100644
--- a/audio/core/all-versions/default/include/core/all-versions/default/StreamIn.impl.h
+++ b/audio/core/all-versions/default/include/core/all-versions/default/StreamIn.impl.h
@@ -25,7 +25,9 @@
 #include <memory>
 
 using ::android::hardware::audio::AUDIO_HAL_VERSION::MessageQueueFlagBits;
+using ::android::hardware::audio::all_versions::implementation::isGainNormalized;
 #include "Conversions.h"
+#include "Util.h"
 
 namespace android {
 namespace hardware {
diff --git a/audio/core/all-versions/default/include/core/all-versions/default/StreamOut.impl.h b/audio/core/all-versions/default/include/core/all-versions/default/StreamOut.impl.h
index 6fb157f..77098a8 100644
--- a/audio/core/all-versions/default/include/core/all-versions/default/StreamOut.impl.h
+++ b/audio/core/all-versions/default/include/core/all-versions/default/StreamOut.impl.h
@@ -32,6 +32,7 @@
 namespace implementation {
 
 using ::android::hardware::audio::common::AUDIO_HAL_VERSION::ThreadInfo;
+using ::android::hardware::audio::all_versions::implementation::isGainNormalized;
 
 namespace {
 
diff --git a/audio/core/all-versions/default/include/core/all-versions/default/Util.h b/audio/core/all-versions/default/include/core/all-versions/default/Util.h
index 350fd86..39d9dbd 100644
--- a/audio/core/all-versions/default/include/core/all-versions/default/Util.h
+++ b/audio/core/all-versions/default/include/core/all-versions/default/Util.h
@@ -14,61 +14,24 @@
  * limitations under the License.
  */
 
-#include <common/all-versions/IncludeGuard.h>
-
-#include <algorithm>
-#include <vector>
-
-#include <system/audio.h>
+#ifndef ANDROID_HARDWARE_AUDIO_DEVICE_ALL_VERSIONS_UTIL_H
+#define ANDROID_HARDWARE_AUDIO_DEVICE_ALL_VERSIONS_UTIL_H
 
 namespace android {
 namespace hardware {
 namespace audio {
-namespace AUDIO_HAL_VERSION {
+namespace all_versions {
 namespace implementation {
 
-using ::android::hardware::audio::AUDIO_HAL_VERSION::Result;
-
 /** @return true if gain is between 0 and 1 included. */
 constexpr bool isGainNormalized(float gain) {
     return gain >= 0.0 && gain <= 1.0;
 }
 
-namespace util {
-
-template <typename T>
-inline bool element_in(T e, const std::vector<T>& v) {
-    return std::find(v.begin(), v.end(), e) != v.end();
-}
-
-static inline Result analyzeStatus(status_t status) {
-    switch (status) {
-        case 0:
-            return Result::OK;
-        case -EINVAL:
-            return Result::INVALID_ARGUMENTS;
-        case -ENODATA:
-            return Result::INVALID_STATE;
-        case -ENODEV:
-            return Result::NOT_INITIALIZED;
-        case -ENOSYS:
-            return Result::NOT_SUPPORTED;
-        default:
-            return Result::INVALID_STATE;
-    }
-}
-
-static inline Result analyzeStatus(const char* className, const char* funcName, status_t status,
-                                   const std::vector<int>& ignoreErrors = {}) {
-    if (status != 0 && !element_in(-status, ignoreErrors)) {
-        ALOGW("Error from HAL %s in function %s: %s", className, funcName, strerror(-status));
-    }
-    return analyzeStatus(status);
-}
-
-}  // namespace util
 }  // namespace implementation
-}  // namespace AUDIO_HAL_VERSION
+}  // namespace all_versions
 }  // namespace audio
 }  // namespace hardware
 }  // namespace android
+
+#endif  // ANDROID_HARDWARE_AUDIO_DEVICE_ALL_VERSIONS_UTIL_H