Obvious bug in /sys/i386/include/bus.h

[M. Warner Losh]

In message: <20050613162743.GA769 at britannica.bec.de>
            Joerg Sonnenberger <joerg at britannica.bec.de> writes:
: The compiler can only optimize it away if it is known to be a constant.
: But thinking again about it, it should be documented at least whether
: a count of 0 is allowed or not. I think it makes more sense to not allow
: it, but others (you included) might disagree.

I'd be happy with commitable bus_space.9, reguardless of how this
discussion turns out.

Warner