1 files changed, 24 insertions, 30 deletions
diff --git a/MdeModulePkg/Universal/Network/Dhcp4Dxe/Dhcp4Io.h b/MdeModulePkg/Universal/Network/Dhcp4Dxe/Dhcp4Io.h
index bc7ef689e1..ce1a80ba74 100644
--- a/MdeModulePkg/Universal/Network/Dhcp4Dxe/Dhcp4Io.h
+++ b/MdeModulePkg/Universal/Network/Dhcp4Dxe/Dhcp4Io.h
@@ -31,36 +31,30 @@ WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
 #define DHCP_SERVER_PORT                  67
 #define DHCP_CLIENT_PORT                  68
 
-typedef enum {
-  //
-  // BOOTP header "op" field
-  //
-  BOOTP_REQUEST           = 1,
-  BOOTP_REPLY             = 2
-} DHCP_OP_TYPE;
-
-typedef enum {
-  //
-  // DHCP message types
-  //
-  DHCP_MSG_DISCOVER       = 1,
-  DHCP_MSG_OFFER          = 2,
-  DHCP_MSG_REQUEST        = 3,
-  DHCP_MSG_DECLINE        = 4,
-  DHCP_MSG_ACK            = 5,
-  DHCP_MSG_NAK            = 6,
-  DHCP_MSG_RELEASE        = 7,
-  DHCP_MSG_INFORM         = 8
-} DHCP_MSG_TYPE;
-
-typedef enum {
-  //
-  // DHCP notify user type
-  //
-  DHCP_NOTIFY_COMPLETION  = 1,
-  DHCP_NOTIFY_RENEWREBIND,
-  DHCP_NOTIFY_ALL
-} DHCP_NOTIFY_TYPE;
+//
+// BOOTP header "op" field
+//
+#define BOOTP_REQUEST           1
+#define BOOTP_REPLY             2
+
+//
+// DHCP message types
+//
+#define DHCP_MSG_DISCOVER       1
+#define DHCP_MSG_OFFER          2
+#define DHCP_MSG_REQUEST        3
+#define DHCP_MSG_DECLINE        4
+#define DHCP_MSG_ACK            5
+#define DHCP_MSG_NAK            6
+#define DHCP_MSG_RELEASE        7
+#define DHCP_MSG_INFORM         8
+
+//
+// DHCP notify user type
+//
+#define DHCP_NOTIFY_COMPLETION  1
+#define DHCP_NOTIFY_RENEWREBIND 2
+#define DHCP_NOTIFY_ALL         3
 
 #define DHCP_IS_BOOTP(Parameter)  (((Parameter) == NULL) || ((Parameter)->DhcpType == 0))