diff --git a/liboverlay/overlayMdp.cpp b/liboverlay/overlayMdp.cpp
index b278ce4..3ec0405 100644
--- a/liboverlay/overlayMdp.cpp
+++ b/liboverlay/overlayMdp.cpp
@@ -1,6 +1,6 @@
 /*
 * Copyright (C) 2008 The Android Open Source Project
-* Copyright (c) 2010-2013, The Linux Foundation. All rights reserved.
+* Copyright (c) 2010-2014, The Linux Foundation. All rights reserved.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
@@ -274,8 +274,9 @@
 }
 
 bool MdpCtrl::setVisualParams(const MetaData_t& data) {
-    bool needUpdate = false;
+    ALOGD_IF(0, "In %s: data.operation = %d", __FUNCTION__, data.operation);
 #ifdef USES_POST_PROCESSING
+    bool needUpdate = false;
     /* calculate the data */
     if (data.operation & PP_PARAM_HSIC) {
         if (mParams.params.pa_params.hue != data.hsicData.hue) {
diff --git a/liboverlay/overlayMdpRot.cpp b/liboverlay/overlayMdpRot.cpp
index ce2ef5b..3e549b1 100755
--- a/liboverlay/overlayMdpRot.cpp
+++ b/liboverlay/overlayMdpRot.cpp
@@ -1,6 +1,6 @@
 /*
  * Copyright (C) 2008 The Android Open Source Project
- * Copyright (c) 2010-2013, The Linux Foundation. All rights reserved.
+ * Copyright (c) 2010-2014, The Linux Foundation. All rights reserved.
  * Not a Contribution, Apache license notifications and license are retained
  * for attribution purposes only.
  *
@@ -94,7 +94,7 @@
     mRotImgInfo.dst.height = whf.h;
 }
 
-void MdpRot::setCrop(const utils::Dim& crop) {
+void MdpRot::setCrop(const utils::Dim& /*crop*/) {
     // NO-OP for non-mdss rotator due to possible h/w limitations
 }
 
diff --git a/liboverlay/overlayMdssRot.cpp b/liboverlay/overlayMdssRot.cpp
index c6d5332..083e507 100644
--- a/liboverlay/overlayMdssRot.cpp
+++ b/liboverlay/overlayMdssRot.cpp
@@ -1,6 +1,6 @@
 /*
  * Copyright (C) 2008 The Android Open Source Project
- * Copyright (c) 2010-2013, The Linux Foundation. All rights reserved.
+ * Copyright (c) 2010-2014, The Linux Foundation. All rights reserved.
  * Not a Contribution, Apache license notifications and license are retained
  * for attribution purposes only.
  *
@@ -92,7 +92,8 @@
     mRotInfo.dst_rect.h = crop.h;
 }
 
-void MdssRot::setDownscale(int ds) {}
+void MdssRot::setDownscale(int /*ds*/) {
+}
 
 void MdssRot::setFlags(const utils::eMdpFlags& flags) {
     mRotInfo.flags = flags;
diff --git a/liboverlay/overlayUtils.cpp b/liboverlay/overlayUtils.cpp
index 30de1db..5cc4c03 100644
--- a/liboverlay/overlayUtils.cpp
+++ b/liboverlay/overlayUtils.cpp
@@ -1,5 +1,5 @@
 /*
-* Copyright (c) 2011-2012, The Linux Foundation. All rights reserved.
+* Copyright (c) 2011-2014, The Linux Foundation. All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are
@@ -423,7 +423,7 @@
     getDump(buf, len, "\tdst_rect", ov.dst_rect);
 }
 
-void getDump(char *buf, size_t len, const char *prefix,
+void getDump(char *buf, size_t /*len*/, const char *prefix,
         const msmfb_img& ov) {
     char str_src[256] = {'\0'};
     snprintf(str_src, 256,
@@ -433,7 +433,7 @@
     strncat(buf, str_src, strlen(str_src));
 }
 
-void getDump(char *buf, size_t len, const char *prefix,
+void getDump(char *buf, size_t /*len*/, const char *prefix,
         const mdp_rect& ov) {
     char str_rect[256] = {'\0'};
     snprintf(str_rect, 256,
@@ -452,7 +452,7 @@
     getDump(buf, len, "\tdata", ov.data);
 }
 
-void getDump(char *buf, size_t len, const char *prefix,
+void getDump(char *buf, size_t /*len*/, const char *prefix,
         const msmfb_data& ov) {
     char str_data[256] = {'\0'};
     snprintf(str_data, 256,