usbip: stub: stop printing kernel pointer addresses in messages

commit 248a22044366f588d46754c54dfe29ffe4f8b4df upstream.

Remove and/or change debug, info. and error messages to not print
kernel pointer addresses.

Signed-off-by: Shuah Khan <shuahkh@osg.samsung.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
[bwh: Backported to 3.2:
 - Drop change in stub_complete()
 - Adjust filenames, context]
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>

diff --cc drivers/staging/usbip/stub_main.c
Simple merge

diff --cc drivers/staging/usbip/stub_rx.c
Simple merge

diff --cc drivers/staging/usbip/stub_tx.c
Simple merge