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authorChristoph Hellwig <hch@lst.de>2019-01-29 11:33:07 +0300
committerMartin K. Petersen <martin.petersen@oracle.com>2019-02-06 05:29:21 +0300
commitae3d56d81507c33024ba7c1eae2ef433aa9bc0d5 (patch)
tree8a812d0cbc109b3c09a18fd314499d064798037c /drivers/target/loopback
parent19fcae3d4f2dd513d472055fb694d802e9a21b91 (diff)
downloadlinux-ae3d56d81507c33024ba7c1eae2ef433aa9bc0d5.tar.xz
scsi: remove bidirectional command support
No real need for bidi support once the OSD code is gone. Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Jens Axboe <axboe@kernel.dk> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Diffstat (limited to 'drivers/target/loopback')
-rw-r--r--drivers/target/loopback/tcm_loop.c15
1 files changed, 0 insertions, 15 deletions
diff --git a/drivers/target/loopback/tcm_loop.c b/drivers/target/loopback/tcm_loop.c
index 89c6e3719d2b..3305b47fdf53 100644
--- a/drivers/target/loopback/tcm_loop.c
+++ b/drivers/target/loopback/tcm_loop.c
@@ -128,14 +128,6 @@ static void tcm_loop_submission_work(struct work_struct *work)
set_host_byte(sc, DID_ERROR);
goto out_done;
}
- if (scsi_bidi_cmnd(sc)) {
- struct scsi_data_buffer *sdb = scsi_in(sc);
-
- sgl_bidi = sdb->table.sgl;
- sgl_bidi_count = sdb->table.nents;
- se_cmd->se_cmd_flags |= SCF_BIDI;
-
- }
transfer_length = scsi_transfer_length(sc);
if (!scsi_prot_sg_count(sc) &&
@@ -304,12 +296,6 @@ static int tcm_loop_target_reset(struct scsi_cmnd *sc)
return FAILED;
}
-static int tcm_loop_slave_alloc(struct scsi_device *sd)
-{
- blk_queue_flag_set(QUEUE_FLAG_BIDI, sd->request_queue);
- return 0;
-}
-
static struct scsi_host_template tcm_loop_driver_template = {
.show_info = tcm_loop_show_info,
.proc_name = "tcm_loopback",
@@ -325,7 +311,6 @@ static struct scsi_host_template tcm_loop_driver_template = {
.cmd_per_lun = 1024,
.max_sectors = 0xFFFF,
.dma_boundary = PAGE_SIZE - 1,
- .slave_alloc = tcm_loop_slave_alloc,
.module = THIS_MODULE,
.track_queue_depth = 1,
};