patch enum

@@ -101,14 +101,16 @@
 
 /* Divider Configuration Register */
 #define APIC_DIVIDE_REG         0xf8
 
 /* Various mode for local APIC. Modes are mutually exclusive  */
-#define APIC_IS_DISABLED        0x0
-#define APIC_MODE_NOTSET        0x1
-#define LOCAL_APIC              0x2
-#define LOCAL_X2APIC            0x3
+enum apic_mode {
+        APIC_IS_DISABLED,
+        APIC_MODE_NOTSET,
+        LOCAL_APIC,
+        LOCAL_X2APIC,
+};
 
 /* x2APIC SELF IPI Register */
 #define X2APIC_SELF_IPI         0xFC
 
 /* General x2APIC constants used at various places */