3 files changed, 5 insertions, 5 deletions
diff --git a/oox/source/core/xmlfilterbase.cxx b/oox/source/core/xmlfilterbase.cxx
index bb8e114757c5..14d50fc0f3c6 100644
--- a/oox/source/core/xmlfilterbase.cxx
+++ b/oox/source/core/xmlfilterbase.cxx
@@ -544,7 +544,7 @@ writeElement( FSHelperPtr pDoc, sal_Int32 nXmlElement, const util::DateTime& rTi
 }
 
 static void
-writeElement( FSHelperPtr pDoc, sal_Int32 nXmlElement, Sequence< OUString > aItems )
+writeElement( FSHelperPtr pDoc, sal_Int32 nXmlElement, const Sequence< OUString >& aItems )
 {
     if( aItems.getLength() == 0 )
         return;
diff --git a/oox/source/export/chartexport.cxx b/oox/source/export/chartexport.cxx
index 78c6ea985b23..68bb9f0c2e7c 100644
--- a/oox/source/export/chartexport.cxx
+++ b/oox/source/export/chartexport.cxx
@@ -3096,7 +3096,7 @@ const char* getErrorBarStyle(sal_Int32 nErrorBarStyle)
 }
 
 Reference< chart2::data::XDataSequence>  getLabeledSequence(
-        uno::Sequence< uno::Reference< chart2::data::XLabeledDataSequence > > aSequences,
+        const uno::Sequence< uno::Reference< chart2::data::XLabeledDataSequence > >& aSequences,
         bool bPositive )
 {
     const OUString aRolePrefix( "error-bars" );
diff --git a/oox/source/export/drawingml.cxx b/oox/source/export/drawingml.cxx
index eff1d2bc6efd..2f9f7f275eee 100644
--- a/oox/source/export/drawingml.cxx
+++ b/oox/source/export/drawingml.cxx
@@ -221,7 +221,7 @@ void DrawingML::WriteSolidFill( sal_uInt32 nColor, sal_Int32 nAlpha )
     mpFS->endElementNS( XML_a, XML_solidFill );
 }
 
-void DrawingML::WriteSolidFill( const OUString& sSchemeName, Sequence< PropertyValue > aTransformations )
+void DrawingML::WriteSolidFill( const OUString& sSchemeName, const Sequence< PropertyValue >& aTransformations )
 {
     mpFS->startElementNS( XML_a, XML_solidFill, FSEND );
     WriteColor( sSchemeName, aTransformations );
@@ -360,7 +360,7 @@ void DrawingML::WriteGradientFill( Reference< XPropertySet > rXPropSet )
     }
 }
 
-void DrawingML::WriteGrabBagGradientFill( Sequence< PropertyValue > aGradientStops, awt::Gradient rGradient )
+void DrawingML::WriteGrabBagGradientFill( const Sequence< PropertyValue >& aGradientStops, awt::Gradient rGradient )
 {
     // write back the original gradient
     mpFS->startElementNS( XML_a, XML_gsLst, FSEND );
@@ -2027,7 +2027,7 @@ void DrawingML::WriteFill( Reference< XPropertySet > xPropSet )
     return;
 }
 
-void DrawingML::WriteStyleProperties( sal_Int32 nTokenId, Sequence< PropertyValue > aProperties )
+void DrawingML::WriteStyleProperties( sal_Int32 nTokenId, const Sequence< PropertyValue >& aProperties )
 {
     if( aProperties.getLength() > 0 )
     {