[Qemu-devel] [PULL 1.0] usb patch queue (with scsi bits).

[Gerd Hoffmann]

  Hi,

This pull fixes SYNCRONIZE_CACHE handling in both scsi and usb code.

The SYNCRONIZE_CACHE scsi command is different from all other ones:
It doesn't transfer any data, but still doesn't complete instantly.
Both scsi-disk and usb-storage failed to handle this case correctly,
resulting in all sorts of funky assert failures and segfaults when
the guest writes to a virtual usb stick and flushes stuff.

Patches 1-4 are minor cleanups for usb-storage (slighly improved scsi
request tracking).  Also Patch 6 depends on these.

Patch 5 is the actual bugfix for scsi-disk.
Patch 6 is the actual bugfix for usb-storage.

Patches 7+8 are bonus fixes for Coverity-spotted issues which are
sitting in the usb patch queue for a while already.

The following changes since commit bc4268998d154b9b3cc86a7b6bd932cc974591c9:

  x86: fix pcmpestrm and pcmpistrm (2011-11-19 13:51:27 +0000)

are available in the git repository at:
  git://git.kraxel.org/qemu usb.30

Gerd Hoffmann (8):
      usb-storage: move status debug message to usb_msd_send_status.
      usb-storage: fill status in complete callback.
      usb-storage: drop tag from device state.
      usb-storage: drop result from device state.
      scsi-disk: don't call scsi_req_complete twice.
      usb-storage: don't try to send the status early.
      ehci: add assert
      usb-linux: fix /proc/bus/usb/devices scan

 hw/scsi-disk.c |    5 ++-
 hw/usb-ehci.c  |    1 +
 hw/usb-msd.c   |   65 ++++++++++++++++++++++++++++++-------------------------
 usb-linux.c    |    7 +++++-
 4 files changed, 45 insertions(+), 33 deletions(-)