Some questionable warnings

Hi folks,

While doing some more cleanup I see that the tt_ospeed and tt_ispeed
element in struct tty_status in include/device/tty_status.h are ints
while t_ospeed and t_ispeed in the tty struct in device/tty.h
they are char. Anyone have a clue why that might be? I grepped the
ChangeLogs quickly but didn't seen anything obvious.

boot_map() in kern/bootstrap.c doesn't appear to be used anywhere.
Remove it or leave it?

implicit declaration of function
mach_msg_send_from_kernel. All I need to do is include kern/ipc_mig.h.
However, vm/memory_object_default.cli However, it just includes
<>. Makes sense. That one just includes
<mach/std_types.defsand <mach/mach_types.defs>. Can I get away with
including a "normal" header here?

I guess that is enough dumb questions for the evening.

Thanks!

Barry