garrett_damore@tadpole.com wrote:

> I notice that we still have the __BROKEN_CONFIG_UNIT_USAGE logic in
> sys/kern/subr_autconf.c.
> 
> The sun3 port declares this macro, but it *appears* that it may not
> actually require it.  It is not declared anywhere else.
> 
> I would like to propose removing the macro (and the code it enables). 
> However, I lack sufficient experience to be 100% sure, so I am asking
> for knowledgable parties to step forward and either approve the change,
> or just make the change themselves -- or explain why this change is a
> bad idea and will cause untold grief amongst millions of sun3 users... :-)

IIUC, the abuse is in sun3/sun3/vme.c. It uses cf_unit to specify
VME bus types. Of cource sun3 should switch to the MI vme driver,
but we have to implement bus_space(9) for sun3 first.
It should be trivial (see sun68k/sun68k/bus.c), but...
---
Izumi Tsutsui