diff --git a/drivers/net/dsa/b53/b53_common.c b/drivers/net/dsa/b53/b53_common.c
index eea4d61a3..f7ae17ee6 100755
--- a/drivers/net/dsa/b53/b53_common.c
+++ b/drivers/net/dsa/b53/b53_common.c
@@ -225,7 +225,6 @@ static const struct b53_mib_desc b53_mibs_58xx[] = {
 
 #define B53_MIBS_58XX_SIZE	ARRAY_SIZE(b53_mibs_58xx)
 
-#define B53_MAX_MTU_25		(1536 - ETH_HLEN - VLAN_HLEN - ETH_FCS_LEN)
 #define B53_MAX_MTU		(9720 - ETH_HLEN - VLAN_HLEN - ETH_FCS_LEN)
 
 static int b53_do_vlan_op(struct b53_device *dev, u8 op)
@@ -2195,11 +2194,6 @@ static int b53_change_mtu(struct dsa_switch *ds, int port, int mtu)
 
 static int b53_get_max_mtu(struct dsa_switch *ds, int port)
 {
-	struct b53_device *dev = ds->priv;
-
-	if (is5325(dev) || is5365(dev))
-		return B53_MAX_MTU_25;
-
 	return B53_MAX_MTU;
 }