[LinuxPPS] 2.6.24.3 errors

[Udo van den Heuvel]

Udo van den Heuvel wrote:
> Hello,
> 
> At the end of building kernel 2.6.24.3 I notice these errors:
> 
>   GEN     .version
>   CHK     include/linux/compile.h
>   UPD     include/linux/compile.h
>   CC      init/version.o
>   LD      init/built-in.o
>   LD      .tmp_vmlinux1
> drivers/built-in.o: In function `uart_unregister_pps_port':
> /usr/src/linux/drivers/serial/serial_core.c:673: undefined reference to
> `pps_unregister_source'
> drivers/built-in.o: In function `uart_register_pps_port':
> /usr/src/linux/drivers/serial/serial_core.c:656: undefined reference to
> `pps_register_source'
> drivers/built-in.o: In function `uart_handle_dcd_change':
> /usr/src/linux/include/linux/serial_core.h:499: undefined reference to
> `pps_event'
> make: *** [.tmp_vmlinux1] Error 1
> 
> I did use ntp-pps-2.6.24-bis.diff to patch the kernel.

The right kernel config options are selected for PPS.
Yet the drivers/pps directory has a very small built-in.o.

How come? Is it something I did wrong or a subtle patch change?