diff --git a/drivers/net/dsa/mt7530.c b/drivers/net/dsa/mt7530.c
index 9d49cbc8ddcb..1215d5e4dd38 100644
--- a/drivers/net/dsa/mt7530.c
+++ b/drivers/net/dsa/mt7530.c
@@ -943,6 +943,24 @@ mt7530_set_ageing_time(struct dsa_switch *ds, unsigned int msecs)
 	return 0;
 }
 
+static const char *p5_intf_modes(unsigned int p5_interface)
+{
+	switch (p5_interface) {
+	case P5_DISABLED:
+		return "DISABLED";
+	case P5_INTF_SEL_PHY_P0:
+		return "PHY P0";
+	case P5_INTF_SEL_PHY_P4:
+		return "PHY P4";
+	case P5_INTF_SEL_GMAC5:
+		return "GMAC5";
+	case P5_INTF_SEL_GMAC5_SGMII:
+		return "GMAC5_SGMII";
+	default:
+		return "unknown";
+	}
+}
+
 static void mt7530_setup_port5(struct dsa_switch *ds, phy_interface_t interface)
 {
 	struct mt7530_priv *priv = ds->priv;
diff --git a/drivers/net/dsa/mt7530.h b/drivers/net/dsa/mt7530.h
index 39aaca50961b..2a611173a7d0 100644
--- a/drivers/net/dsa/mt7530.h
+++ b/drivers/net/dsa/mt7530.h
@@ -682,24 +682,6 @@ enum p5_interface_select {
 	P5_INTF_SEL_GMAC5_SGMII,
 };
 
-static const char *p5_intf_modes(unsigned int p5_interface)
-{
-	switch (p5_interface) {
-	case P5_DISABLED:
-		return "DISABLED";
-	case P5_INTF_SEL_PHY_P0:
-		return "PHY P0";
-	case P5_INTF_SEL_PHY_P4:
-		return "PHY P4";
-	case P5_INTF_SEL_GMAC5:
-		return "GMAC5";
-	case P5_INTF_SEL_GMAC5_SGMII:
-		return "GMAC5_SGMII";
-	default:
-		return "unknown";
-	}
-}
-
 struct mt7530_priv;
 
 struct mt753x_pcs {