* handle another cardbus unplug misbehavior
     - root hub kept polling, never stopped
     - starts to update hcd->state to match internal state
* code to count/queue TDs for interrupt/bulk is now shared
     - removes (low level) interrupt transfer size limitation
     - both types already handled urb queueing
     - re-indents some TD queuing code (most of patch, by volume)
* cleanup
     - use new container_of() macro, not list_entry()
     - report a previously unreported error (control data >4K)
     - simplify intr/bulk toggle reset
     - tweak TD debug dump
     - more object code shrinkage (often fits in 3 pages)

Note that the control data size error is just a long-standing
limitation of this driver, not a USB limitation!  It could be
fixed, if anyone starts to run into it.