hal: Clean up compilation warnings

Change-Id: I2aaf643c2e626049cfbd58e2d7d610370d860567

3 files changed, 10 insertions, 10 deletions

diff --git a/audiod/AudioDaemon.cpp b/audiod/AudioDaemon.cpp
index 2c9b5d08..6cab301e 100644
--- a/audiod/AudioDaemon.cpp
+++ b/audiod/AudioDaemon.cpp
@@ -60,7 +60,7 @@ namespace android {
         run("AudioDaemon", PRIORITY_URGENT_AUDIO);
     }
 
-    void AudioDaemon::binderDied(const wp<IBinder>& who)
+    void AudioDaemon::binderDied(const wp<IBinder>& who __unused)
     {
         requestExit();
     }
diff --git a/audiod/audiod_main.cpp b/audiod/audiod_main.cpp
index 50691fd5..3de7c3ed 100644
--- a/audiod/audiod_main.cpp
+++ b/audiod/audiod_main.cpp
@@ -42,7 +42,7 @@ using namespace android;
 
 // ---------------------------------------------------------------------------
 
-int main(int argc, char** argv)
+int main(int argc __unused, char** argv __unused)
 {
 #if defined(HAVE_PTHREADS)
     setpriority(PRIO_PROCESS, 0, ANDROID_PRIORITY_AUDIO);
diff --git a/visualizer/offload_visualizer.c b/visualizer/offload_visualizer.c
index d363b778..dfa4a2dc 100644
--- a/visualizer/offload_visualizer.c
+++ b/visualizer/offload_visualizer.c
@@ -319,7 +319,7 @@ int configure_proxy_capture(struct mixer *mixer, int value) {
 }
 
 
-void *capture_thread_loop(void *arg)
+void *capture_thread_loop(void *arg __unused)
 {
     int16_t data[AUDIO_CAPTURE_PERIOD_SIZE * AUDIO_CAPTURE_CHANNEL_COUNT * sizeof(int16_t)];
     audio_buffer_t buf;
@@ -427,7 +427,7 @@ void *capture_thread_loop(void *arg)
 
 __attribute__ ((visibility ("default")))
 int visualizer_hal_start_output(audio_io_handle_t output, int pcm_id) {
-    int ret;
+    int ret = 0;
     struct listnode *node;
 
     ALOGV("%s output %d pcm_id %d", __func__, output, pcm_id);
@@ -678,7 +678,7 @@ int visualizer_get_parameter(effect_context_t *context, effect_param_t *p, uint3
     return 0;
 }
 
-int visualizer_set_parameter(effect_context_t *context, effect_param_t *p, uint32_t size)
+int visualizer_set_parameter(effect_context_t *context, effect_param_t *p, uint32_t size __unused)
 {
     visualizer_context_t *visu_ctxt = (visualizer_context_t *)context;
 
@@ -811,8 +811,8 @@ int visualizer_process(effect_context_t *context,
     return 0;
 }
 
-int visualizer_command(effect_context_t * context, uint32_t cmdCode, uint32_t cmdSize,
-        void *pCmdData, uint32_t *replySize, void *pReplyData)
+int visualizer_command(effect_context_t * context, uint32_t cmdCode, uint32_t cmdSize __unused,
+        void *pCmdData __unused, uint32_t *replySize, void *pReplyData)
 {
     visualizer_context_t * visu_ctxt = (visualizer_context_t *)context;
 
@@ -934,7 +934,7 @@ int visualizer_command(effect_context_t * context, uint32_t cmdCode, uint32_t cm
  */
 
 int effect_lib_create(const effect_uuid_t *uuid,
-                         int32_t sessionId,
+                         int32_t sessionId __unused,
                          int32_t ioId,
                          effect_handle_t *pHandle) {
     int ret;
@@ -1055,8 +1055,8 @@ int effect_lib_get_descriptor(const effect_uuid_t *uuid,
 
  /* Stub function for effect interface: never called for offloaded effects */
 int effect_process(effect_handle_t self,
-                       audio_buffer_t *inBuffer,
-                       audio_buffer_t *outBuffer)
+                       audio_buffer_t *inBuffer __unused,
+                       audio_buffer_t *outBuffer __unused)
 {
     effect_context_t * context = (effect_context_t *)self;
     int status = 0;