CC      arch/x86_64/lib/bitops.o
  CC      arch/x86_64/lib/bitstr.o
  AS      arch/x86_64/lib/clear_page.o
  AS      arch/x86_64/lib/copy_page.o
  AS      arch/x86_64/lib/copy_user.o
  AS      arch/x86_64/lib/csum-copy.o
  CC      arch/x86_64/lib/csum-partial.o
  CC      arch/x86_64/lib/csum-wrappers.o
  CC      arch/x86_64/lib/delay.o
  AS      arch/x86_64/lib/getuser.o
  AS      arch/x86_64/lib/memcpy.o
  CC      arch/x86_64/lib/memmove.o
  AS      arch/x86_64/lib/memset.o
  AS      arch/x86_64/lib/putuser.o
  AS      arch/x86_64/lib/rwlock.o
  AS      arch/x86_64/lib/thunk.o
  CC      arch/x86_64/lib/usercopy.o
  AR      arch/x86_64/lib/lib.a
  GEN     .version
  CHK     include/linux/compile.h
  UPD     include/linux/compile.h
  CC      init/version.o
  LD      init/built-in.o
  LD      .tmp_vmlinux1
  KSYM    .tmp_kallsyms1.S
  AS      .tmp_kallsyms1.o
  LD      .tmp_vmlinux2
  KSYM    .tmp_kallsyms2.S
  AS      .tmp_kallsyms2.o
  LD      vmlinux
  SYSMAP  System.map
  SYSMAP  .tmp_System.map
  MODPOST vmlinux
  OBJCOPY vmlinux-stripped
  GZIP    vmlinuz
  Building modules, stage 2.
  MODPOST 360 modules
WARNING: "uart_write_wakeup" [drivers/serial/8250.ko] undefined!
WARNING: "uart_add_one_port" [drivers/serial/8250.ko] undefined!
WARNING: "uart_match_port" [drivers/serial/8250.ko] undefined!
WARNING: "uart_get_divisor" [drivers/serial/8250.ko] undefined!
WARNING: "uart_unregister_driver" [drivers/serial/8250.ko] undefined!
WARNING: "uart_update_timeout" [drivers/serial/8250.ko] undefined!
WARNING: "uart_remove_one_port" [drivers/serial/8250.ko] undefined!
WARNING: "uart_suspend_port" [drivers/serial/8250.ko] undefined!
WARNING: "uart_register_driver" [drivers/serial/8250.ko] undefined!
WARNING: "uart_resume_port" [drivers/serial/8250.ko] undefined!
WARNING: "uart_get_baud_rate" [drivers/serial/8250.ko] undefined!
make[1]: *** [__modpost] Error 1
make: *** [modules] Error 2