Fix use of unitialized register to avoid NaT consumption fault.

	up arch/ia64/config.in (based on patch by Keith Owens).

The old form of designated initializers are obsolete: we need to
replace them with the ISO C forms before 2.6.  Gcc has always supported
both forms anyway.

Xavier.  The fixes are all in the exception handler and there are no changes
in the main "copy" body.  I have tested with both gcc2.96 and gcc3.1
compiler.  Please report issues to me if there are any.  Thanks.

	areas that could cause illegal memory attribute aliasing.

	triggered in a code section with an exception handler.

first is some trivial cleanup in ia64/kernel/acpi.c (no need to
initialize automatics that are immediately assigned, don't
check for "0 == __va(x)", don't bail out of acpi_boot_init
on errors in MADT parsing (we might still be able to get
good stuff from SPCR, etc)).

The second applies on top of the first and cleans up legacy
keyboard detection by using the 8042 bit in the FADT boot
architecture flags.  I think it's a little cleaner than the current
"#ifdef CONFIG_IA64" approach in pc_keyb.c.

	NULL pointers.  Patch by Ken Chen.

	breakpoint.  Patch by Stephane Eranian.

I added dma_address and dma_length to struct scatterlist and
removed orig_address.  This brings IA64 in line with most other
architectures, but required a few changes to swiotlb.

Grant Grundler did the sba_iommu.c updates.

Note that this isn't *quite* enough to make the generic kernel
work on ZX1 boxes, because the ACPI in 2.5.18 barfs on a
ZX1 _CRS method.

David, I've tested both the swiotlb (on i2000 and ZX1) and
sba_iommu (on ZX1, with a kludge for the ACPI problem),
and they seem to work fine.

patch last February.  Please include this in the next possible ia64 kernel
patch.

It fixes a bug in VA-->PA address translation when the kernel is not using
identity mapping (eg. Atlas discontig memory code) but the SAL still is.

into tiger.hpl.hp.com:/data1/bk/lia64/to-linus-2.5

ia64_switch_mode().

Didn't get the net/ conversion quite right, and apparently overlooked
one subdir in sound/. Now fixed.