diff --git a/root/target/linux/generic/files/drivers/net/phy/b53/b53_common.c b/root/target/linux/generic/files/drivers/net/phy/b53/b53_common.c
old mode 100755
new mode 100644
index 030c5c86..a6dab255
--- a/root/target/linux/generic/files/drivers/net/phy/b53/b53_common.c
+++ b/root/target/linux/generic/files/drivers/net/phy/b53/b53_common.c
@@ -529,7 +529,7 @@ static int b53_configure_ports_of(struct b53_device *dev)
 						po |= PORT_OVERRIDE_SPEED_2000M;
 					else
 						po |= GMII_PO_SPEED_2000M;
-					/* fall through */
+					__attribute__((__fallthrough__));
 				case 1000:
 					po |= GMII_PO_SPEED_1000M;
 					break;