diff --git a/drivers/net/ethernet/realtek/r8169.c b/drivers/net/ethernet/realtek/r8169.c
index 3a5e616..f4df367 100644
--- a/drivers/net/ethernet/realtek/r8169.c
+++ b/drivers/net/ethernet/realtek/r8169.c
@@ -7093,20 +7093,17 @@
 {
 	unsigned int flags;
 
-	switch (tp->mac_version) {
-	case RTL_GIGA_MAC_VER_01 ... RTL_GIGA_MAC_VER_06:
+	if (tp->mac_version <= RTL_GIGA_MAC_VER_06) {
 		RTL_W8(tp, Cfg9346, Cfg9346_Unlock);
 		RTL_W8(tp, Config2, RTL_R8(tp, Config2) & ~MSIEnable);
 		RTL_W8(tp, Cfg9346, Cfg9346_Lock);
 		flags = PCI_IRQ_LEGACY;
-		break;
-	case RTL_GIGA_MAC_VER_39 ... RTL_GIGA_MAC_VER_40:
+	} else if (tp->mac_version == RTL_GIGA_MAC_VER_40) {
 		/* This version was reported to have issues with resume
 		 * from suspend when using MSI-X
 		 */
 		flags = PCI_IRQ_LEGACY | PCI_IRQ_MSI;
-		break;
-	default:
+	} else {
 		flags = PCI_IRQ_ALL_TYPES;
 	}