[patch] acpidump

[Nate Lawson]

On Sat, 17 Apr 2004, Alex Vasylenko wrote:
> I've upgraded a system from RELENG_5_2 to CURRENT and 'acpidump -d' broke.
>
> As you can see in the backtrace below we get into dsdt_from_fadt with
> uninitialized fadt_revision which is handled as rev 2. Apparently my
> system has 32-bit DSTD address, so we crash. Please consider attached
> patch (it moves FADT revision detection code into a function and makes
> all users of fadt_revision call that function to get the revision)

Committed, with some minor cleanups.  Thanks.  BTW, acpidump -t -d gives
you the fixed tables as well as DSDT.

-Nate