gdt_addr[X86_GDT_ENTRY_32BIT_DS] = GDT_ENTRY(0xc093, 0, 0xfffff);
 
        /* FS: data, read/write, 4 GB, base (Global Data Pointer) */
-       id->gd_addr = id;
+       id->arch.gd_addr = id;
        gdt_addr[X86_GDT_ENTRY_32BIT_FS] = GDT_ENTRY(0xc093,
-                    (ulong)&id->gd_addr, 0xfffff);
+                    (ulong)&id->arch.gd_addr, 0xfffff);
 
        /* 16-bit CS: code, read/execute, 64 kB, base 0 */
        gdt_addr[X86_GDT_ENTRY_16BIT_CS] = GDT_ENTRY(0x109b, 0, 0x0ffff);
 
 
 /* Architecture-specific global data */
 struct arch_global_data {
+       struct global_data *gd_addr;            /* Location of Global Data */
 };
 
 /*
 
 struct global_data {
        struct arch_global_data arch;   /* architecture-specific data */
-       /* NOTE: gd_addr MUST be first member of struct global_data! */
-       gd_t *gd_addr;  /* Location of Global Data */
        bd_t            *bd;
        unsigned long   flags;
        unsigned int    baudrate;