[SCSI] iscsi_iser: convert to use the data buffer accessors

iscsi_iser: convert to use the data buffer accessors

- remove the unnecessary map_single path.

- convert to use the new accessors for the sg lists and the
parameters.

TODO: use scsi_for_each_sg().

Signed-off-by: FUJITA Tomonori <[email protected]>
Acked-by: Erez Zilber <[email protected]>
Signed-off-by: James Bottomley <[email protected]>
2 files changed