tree 3f804933534a773ff86664a81352ecf5bd4df868
parent 3a3c5e4a672c5cd61cbdcedcd027312577f9ab7c
author Nicholas Bellinger <nab@linux-iscsi.org> 1351820583 -0700
committer Nicholas Bellinger <nab@linux-iscsi.org> 1352264146 -0800

target: Fix incorrect starting offset after MODE_SENSE refactoring

This patch fixes a new off-by-one bug in the hardcoded starting offset of
spc_emulate_modesense() code that causes BLOCK DESCRIPTOR to be incorrectly
written within the MEDIUM TYPE buffer area of the mode parameter header.

According to spc4r30, Section 7.5.4, BLOCK DESCRIPTOR for MODE_SENSE_10
starts at byte 3, and BLOCK_DESCRIPTOR for MODE_SENSE (6) starts at byte 2.

(roland: add MODE DATA LENGTH + MEDIUM TYPE offset comment)

Cc: Roland Dreier <roland@purestorage.com>
Cc: Christoph Hellwig <hch@lst.de>
Cc: Douglas Gilbert <dgilbert@interlog.com>
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>