diff --git a/camera/CameraParameters.cpp b/camera/CameraParameters.cpp
index af091f4..78eb4d6 100644
--- a/camera/CameraParameters.cpp
+++ b/camera/CameraParameters.cpp
@@ -456,7 +456,7 @@
 
 void CameraParameters::dump() const
 {
-    ALOGD("dump: mMap.size = %d", mMap.size());
+    ALOGD("dump: mMap.size = %zu", mMap.size());
     for (size_t i = 0; i < mMap.size(); i++) {
         String8 k, v;
         k = mMap.keyAt(i);
@@ -465,7 +465,7 @@
     }
 }
 
-status_t CameraParameters::dump(int fd, const Vector<String16>& args) const
+status_t CameraParameters::dump(int fd, const Vector<String16>& /*args*/) const
 {
     const size_t SIZE = 256;
     char buffer[SIZE];