diff --git a/core/jni/android_nio_utils.h b/core/jni/android_nio_utils.h
index bd5f20abaf4ca..c634cb9177196 100644
--- a/core/jni/android_nio_utils.h
+++ b/core/jni/android_nio_utils.h
@@ -58,9 +58,9 @@ class AutoBufferPointer {
 public:
     AutoBufferPointer(JNIEnv* env, jobject nioBuffer, jboolean commit);
     ~AutoBufferPointer();
-    
+
     void* pointer() const { return fPointer; }
-    
+
 private:
     JNIEnv* fEnv;
     void*   fPointer;
diff --git a/media/jni/android_media_MediaPlayer.cpp b/media/jni/android_media_MediaPlayer.cpp
index 73a924def2d3d..820de5b1ab863 100644
--- a/media/jni/android_media_MediaPlayer.cpp
+++ b/media/jni/android_media_MediaPlayer.cpp
@@ -895,8 +895,6 @@ static JNINativeMethod gMethods[] = {
     {"setNextMediaPlayer",  "(Landroid/media/MediaPlayer;)V",   (void *)android_media_MediaPlayer_setNextMediaPlayer},
 };
 
-static const char* const kClassPathName = "android/media/MediaPlayer";
-
 // This function only registers the native methods
 static int register_android_media_MediaPlayer(JNIEnv *env)
 {
diff --git a/media/jni/android_media_MediaRecorder.cpp b/media/jni/android_media_MediaRecorder.cpp
index 9cadd86175ee1..55ac8b24aaffa 100644
--- a/media/jni/android_media_MediaRecorder.cpp
+++ b/media/jni/android_media_MediaRecorder.cpp
@@ -510,8 +510,6 @@ static JNINativeMethod gMethods[] = {
     {"native_finalize",      "()V",                             (void *)android_media_MediaRecorder_native_finalize},
 };
 
-static const char* const kClassPathName = "android/media/MediaRecorder";
-
 // This function only registers the native methods, and is called from
 // JNI_OnLoad in android_media_MediaPlayer.cpp
 int register_android_media_MediaRecorder(JNIEnv *env)
diff --git a/media/jni/android_mtp_MtpDatabase.cpp b/media/jni/android_mtp_MtpDatabase.cpp
index ca5b3c7c6d5a6..803ab0538ca96 100644
--- a/media/jni/android_mtp_MtpDatabase.cpp
+++ b/media/jni/android_mtp_MtpDatabase.cpp
@@ -1178,8 +1178,6 @@ static JNINativeMethod gMtpPropertyGroupMethods[] = {
                                         (void *)android_mtp_MtpPropertyGroup_format_date_time},
 };
 
-static const char* const kClassPathName = "android/mtp/MtpDatabase";
-
 int register_android_mtp_MtpDatabase(JNIEnv *env)
 {
     jclass clazz;
diff --git a/media/jni/android_mtp_MtpDevice.cpp b/media/jni/android_mtp_MtpDevice.cpp
index fb15770197912..2dbd7dcc83356 100644
--- a/media/jni/android_mtp_MtpDevice.cpp
+++ b/media/jni/android_mtp_MtpDevice.cpp
@@ -417,8 +417,6 @@ static JNINativeMethod gMethods[] = {
                                         (void *)android_mtp_MtpDevice_import_file},
 };
 
-static const char* const kClassPathName = "android/mtp/MtpDevice";
-
 int register_android_mtp_MtpDevice(JNIEnv *env)
 {
     jclass clazz;
diff --git a/media/jni/android_mtp_MtpServer.cpp b/media/jni/android_mtp_MtpServer.cpp
index 2f90dfede9944..2ce2a904e0f06 100644
--- a/media/jni/android_mtp_MtpServer.cpp
+++ b/media/jni/android_mtp_MtpServer.cpp
@@ -193,8 +193,6 @@ static JNINativeMethod gMethods[] = {
     {"native_remove_storage",       "(I)V", (void *)android_mtp_MtpServer_remove_storage},
 };
 
-static const char* const kClassPathName = "android/mtp/MtpServer";
-
 int register_android_mtp_MtpServer(JNIEnv *env)
 {
     jclass clazz;
diff --git a/media/mca/filterfw/native/core/shader_program.cpp b/media/mca/filterfw/native/core/shader_program.cpp
index 002327b45442d..f1ea7edc37645 100644
--- a/media/mca/filterfw/native/core/shader_program.cpp
+++ b/media/mca/filterfw/native/core/shader_program.cpp
@@ -30,9 +30,6 @@
 namespace android {
 namespace filterfw {
 
-// VBO attachment keys
-static const int kDefaultVboKey = 1;
-
 static const char* s_default_vertex_shader_source_ =
   "attribute vec4 a_position;\n"
   "attribute vec2 a_texcoord;\n"
@@ -55,10 +52,6 @@ static void GetTileCoords(const float* b, float x, float y, float* xt, float* yt
   *yt = w0 * b[1] + w1 * b[3] + w2 * b[5] + w3 * b[7];
 }
 
-static inline float AdjustRatio(float current, float next) {
-  return (current + next) / 2.0;
-}
-
 // VertexAttrib implementation /////////////////////////////////////////////////
 ShaderProgram::VertexAttrib::VertexAttrib()
   : is_const(true),
diff --git a/services/core/jni/Android.mk b/services/core/jni/Android.mk
index 99b33786331a4..dc073ad68d549 100644
--- a/services/core/jni/Android.mk
+++ b/services/core/jni/Android.mk
@@ -2,7 +2,7 @@
 # files
 LOCAL_REL_DIR := core/jni
 
-LOCAL_CFLAGS += -Wall -Werror
+LOCAL_CFLAGS += -Wall -Werror -Wno-unused-parameter
 
 LOCAL_SRC_FILES += \
     $(LOCAL_REL_DIR)/com_android_server_AlarmManagerService.cpp \
diff --git a/services/core/jni/com_android_server_hdmi_HdmiCecController.cpp b/services/core/jni/com_android_server_hdmi_HdmiCecController.cpp
index 5c557b6e7c9ab..4a08b2def730d 100644
--- a/services/core/jni/com_android_server_hdmi_HdmiCecController.cpp
+++ b/services/core/jni/com_android_server_hdmi_HdmiCecController.cpp
@@ -408,6 +408,7 @@ static JNINativeMethod sMethods[] = {
 int register_android_server_hdmi_HdmiCecController(JNIEnv* env) {
     int res = jniRegisterNativeMethods(env, CLASS_PATH, sMethods, NELEM(sMethods));
     LOG_FATAL_IF(res < 0, "Unable to register native methods.");
+    (void)res; // Don't scream about unused variable in the LOG_NDEBUG case
     return 0;
 }
 
diff --git a/services/core/jni/com_android_server_tv_TvInputHal.cpp b/services/core/jni/com_android_server_tv_TvInputHal.cpp
index 5cb05431fe9ee..8292e0da6b670 100644
--- a/services/core/jni/com_android_server_tv_TvInputHal.cpp
+++ b/services/core/jni/com_android_server_tv_TvInputHal.cpp
@@ -634,6 +634,7 @@ int register_android_server_tv_TvInputHal(JNIEnv* env) {
     int res = jniRegisterNativeMethods(env, "com/android/server/tv/TvInputHal",
             gTvInputHalMethods, NELEM(gTvInputHalMethods));
     LOG_FATAL_IF(res < 0, "Unable to register native methods.");
+    (void)res; // Don't complain about unused variable in the LOG_NDEBUG case
 
     jclass clazz;
     FIND_CLASS(clazz, "com/android/server/tv/TvInputHal");