This resolves a problem that appears when relinking
a bulk or control QH that has a partially completed
multi-packet qTD.  Some I/O could be repeated.

Such cases can happen when an empty QH starts to unlink,
but gets re-activated (by queueing the multi-packet qTD)
before the HC saw the unlink.  It's rarely an issue with
control traffic (transfers are so small) or when bulk
queues are active (the QH won't empty).

Use separate transfer_flags bits for transfer_dma and setup_dma

This is a minor update to the patch I posted the other day:

  - Updates processing for completed QTDs, fixing a regression
    I've been chasing for a while.

  - Works around a bug seen in some EHCI silicon (like NEC),
    which the previous problem was covering up.

  - Cleanup: updates the debug support a bit, removes a
    now-fixed FIXME comment, etc; and a version ID change.

My previous patch (several months ago) missed one instance of
changing usblp status data from local stack to alloc-ed memory.

Not having heard any complaints about this patch, I'm submitting it.  It
fixes a problem with the root hub status URB implementation; the timer
that controls the root hub polling was not getting reset during a PM
suspend.

already being unhashed on entry.

as we delete the entry, we can only poison the back pointer, not the
traversal pointer (rcu traversal only ever walks forward).

Make __d_drop() take this into account.

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

drivers/char/pty.c converted to dynamic allocation

drivers/char/rio/rio_linux.c converted to dynamic allocation

drivers/char/epca.c converted to dynamic allocation

arch/v850/kernel/{memcons,simcons}.c converted to dynamic allocation

drivers/char/vt.c converted to dynamic allocation

arch/um/drivers/* converted to dynamic allocation

arch/cris/drivers/serial.c converted to dynamic allocation

arch/alpha/kernel/srmcons.c converted to dynamic allocation

drivers/s390/char/con3215.c converted to dynamic allocation

drivers/s390/char/sclp_tty.c converted to dynamic allocation

drivers/s390/char/tubtty.c converted to dynamic allocation

drivers/s390/net/ctctty.c converted to dynamic allocation

drivers/isdn/capi/capi.c converted to dynamic allocation

arch/mips/baget/vacserial.c converted to dynamic allocation

arch/ppc/8xx_io/uart.c converted to dynamic allocation

arch/ppc/8260_io/uart.c converted to dynamic allocation

drivers/usb/serial/usb-serial.c converted to dynamic allocation

drivers/char/ip2main.c converted to dynamic allocation

arch/mips/au1000/common/serial.c converted to dynamic allocation

arch/ia64/hp/sim/simserial.c converted to dynamic allocation

arch/ppc/4xx_io/serial_sicc.c converted to dynamic allocation

drivers/usb/class/cdc-acm.c converted to dynamic allocation

drivers/char/esp.c converted to dynamic allocation

drivers/usb/class/bluetty.c converted to dynamic allocation

drivers/isdn/i4l/isdn_tty.c converted to dynamic allocation

drivers/char/hvc_console.c converted to dynamic allocation

drivers/char/pcmcia/synclink_cs.c converted to dynamic allocation

drivers/char/synclinkmp.c converted to dynamic allocation

drivers/char/synclink.c converted to dynamic allocation

drivers/char/mxser.c converted to dynamic allocation

drivers/char/moxa.c converted to dynamic allocation

drivers/char/pcxx.c converted to dynamic allocation