Re: Updated drm code

[Martin Husemann <martin%duskware.de@localhost>]

On Fri, Jun 19, 2009 at 04:13:31PM +1000, matthew green wrote:
> this change lets drm work on amd64 where it wants to have mmap
> work on offsets that are an unsigned value and end up triggering
> a < 0 test inside uvm_device.c.  it's kind of a hack but it seems
> cleaner than any other change i've seen proposed.

Can you please explain why this can't be dealt with more generally (i.e. the
offset arg from mmap be interpreted as an unsigned value always and the neg
test restricted to -1)?

Last time jared tried to explain it to me some (maybe broken) int32_t ->
off_t transition was involved "somewhere", but I may misremember this.

Martin