diff --git a/services/audioflinger/AudioFlinger.h b/services/audioflinger/AudioFlinger.h
index 9513327..545fa36 100644
--- a/services/audioflinger/AudioFlinger.h
+++ b/services/audioflinger/AudioFlinger.h
@@ -96,6 +96,9 @@
     status_t setStreamMute(audio_stream_type_t stream, bool muted) final
             EXCLUDES_AudioFlinger_Mutex;
 
+    status_t setPortsVolume(const std::vector<audio_port_handle_t>& portIds, float volume,
+            audio_io_handle_t output) final EXCLUDES_AudioFlinger_Mutex;
+
     status_t setMode(audio_mode_t mode) final EXCLUDES_AudioFlinger_Mutex;
 
     status_t setMicMute(bool state) final EXCLUDES_AudioFlinger_Mutex;
@@ -552,6 +555,7 @@
     IAfPlaybackThread* checkMixerThread_l(audio_io_handle_t output) const REQUIRES(mutex());
 
     sp<VolumeInterface> getVolumeInterface_l(audio_io_handle_t output) const REQUIRES(mutex());
+
     std::vector<sp<VolumeInterface>> getAllVolumeInterfaces_l() const REQUIRES(mutex());