Rewrite of the s390 channel subsystem driver for the new driver model

The channel subsystem driver a.k.a s390 common I/O layer is the low level
driver for most device drivers on s390 systems. The old code is largely
unchanged from the initial linux-2.2 port and there is a lot of bitrot
on it.

In particular, concepts from the 2.5 driver model are implemented in a
completely different and more complicated way here.
This rewrite tries to get the driver ready for 2.6. The new interface is
not compatible to the old one but should be rather stable now unless
someone finds major flaws.

The 's390dyn' and 'chandev' interfaces have been removed entirely (yippii!)
and are replaced by hotplug and sysfs interfaces.

Authors: Arnd Bergmann <arndb@de.ibm.com>,
         Cornelia Huck <cohuck@de.ibm.com>,
         Martin Schwidefsky <schwidefsky@de.ibm.com>

Remove channel device layer.

s390 debugging documentation update.

Add missing include.

Add additional parameter for do_fork.

Make debug feature less noisy.

Add s390 elf relocations.

Move clearing of .bss before the memory detection loop to avoid
problem when compiling with gcc 3.3.

New configuration options DEBUG_KERNEL, DEBUG_SLAB, KALLSYMS and
DEBUG_SPINLOCK_SLEEP. Update default configuration.

into home.transmeta.com:/home/torvalds/v2.5/linux

using the new system call restart infrastructure.

This breaks the compat layer - it really needs to do its own version
of restarting, since the restarting depends on the types.

handling.

Update x86 to use the new infrastructure.

into home.transmeta.com:/home/torvalds/v2.5/linux

into kroah.com:/home/greg/linux/BK/pnp-2.5

This trivial patch updates the gameport driver to the new id scheme.

This contains three changes.  The first removes some #defines that don't
seem to be needed anymore.  The second fixes a problem when CONFIG_LBD
is set and sector_t is u64.  The third fixes some compile warnings
setting a char * in the scsi_pointer struct to a dma_addr_t.  I changed
the usage from the ptr element to the dma_handle element.

It compiles without warnings and I have run some tests on aacraid devices
on the osdl lab machines with the CONFIG_LBD option on and off.

I forgot the errno.h.  Without this patch, things may not compile when
pnp support or pnp card support is disabled.

Hope you had a good trip.  I noticed a small mistake in pnp 0.93 and I have
a fix for it.

Attached is a patch, that updates the 2.5.50 to the latest pnp
version.  It includes all 9 of the previously submitted patches.

Highlights are as follows:
-PnP BIOS fixes
-Several new macros
-PnP Card Services
-Various bug fixes
-more drivers converted to the new APIs

This simplifies logic in acpi_wakeup.S by putting code and data into
same segment. Plus it kills off-by-3 bug and uses constant instead of
hardcoded value.

When kernel becomes too big, table allocated in acpi.c is no longer
big enough and machine crashes during acpi_wakeup.S... This fixes
it and adds safety check for acpi_wakeup's code size.

This adds basic support to md.c.

This makes swsusp 64bit compatible, and makes it work in case of two
mirrors of physical memory (x86-64 works like that). It also contains
few accumulated cleanups.

swsusp: Move loop variables into assembly, where they are used.

This moves CONFIG_SOFTWARE_SUSPEND where it belongs, and makes
ACPI_SLEEP depend on it to prevent compile problems.

From:  Chris Wilson <chris@qwirx.com>

  If the call to devfs_register() fails, then the driver does not deregister
  its misc device before returning an error. This should fix it.

From:  william stinson <wstinson@wanadoo.fr>

  	1) removes one call to check_region
  	2) uses request_region instead
  	3) calls release_region in case of driver initialisation error later on

From:  Michael Still <mikal@stillhq.com>

[ Return error from misc_register-002-002, not some random value ]
From:  Michael Still <mikal@stillhq.com>

From:  Paul <set@pobox.com>

From:  Brad Hards <bhards@bigpond.net.au>

From:  Stephen Rothwell <sfr@canb.auug.org.au>

  Every definition if sigmask() was the same.  In one case it was
  mutilply defined for the arm architecture.  This patch removes all the
  architecture defines of sigmask and moves the generic define from
  the protection of __HAVE_ARCH_SIG_BITOPS.

From:  Greg Ungerer <gerg@moreton.com.au>

From:  Brad Hards <bhards@bigpond.net.au>

From:  Marcus Alanen <maalanen@ra.abo.fi>

  The freeall label already does the kfree(dev->priv)

From:  Greg Ungerer <gerg@moreton.com.au>

  Put in missing Makefile var bracket in 68328 processor support.

From:  Marcus Alanen <maalanen@ra.abo.fi>

  On error we don't release the previously allocated struct mii_phy:s

From:  Greg Ungerer <gerg@moreton.com.au>

From:  Michael Still <mikal@stillhq.com>