[SCSI] scsi_dh: no need to initialize rq->cmd with blk_get_request

blk_get_request initializes rq->cmd (rq_init does) so the users don't
need to do that.

Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Signed-off-by: Chandra Seetharaman <sekharan@us.ibm.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>

3 files changed, 0 insertions, 5 deletions

diff --git a/drivers/scsi/device_handler/scsi_dh_emc.c b/drivers/scsi/device_handler/scsi_dh_emc.c
index ef693e8412e9..2c1167541726 100644
--- a/drivers/scsi/device_handler/scsi_dh_emc.c
+++ b/drivers/scsi/device_handler/scsi_dh_emc.c
@@ -278,7 +278,6 @@ static struct request *get_req(struct scsi_device *sdev, int cmd,
                 return NULL;
         }
 
-        memset(rq->cmd, 0, BLK_MAX_CDB);
         rq->cmd_len = COMMAND_SIZE(cmd);
         rq->cmd[0] = cmd;
 
diff --git a/drivers/scsi/device_handler/scsi_dh_hp_sw.c b/drivers/scsi/device_handler/scsi_dh_hp_sw.c
index a6a4ef3ad51c..5e93c88ad66b 100644
--- a/drivers/scsi/device_handler/scsi_dh_hp_sw.c
+++ b/drivers/scsi/device_handler/scsi_dh_hp_sw.c
@@ -114,7 +114,6 @@ static int hp_sw_tur(struct scsi_device *sdev, struct hp_sw_dh_data *h)
         req->cmd_type = REQ_TYPE_BLOCK_PC;
         req->cmd_flags |= REQ_FAILFAST;
         req->cmd_len = COMMAND_SIZE(TEST_UNIT_READY);
-        memset(req->cmd, 0, MAX_COMMAND_SIZE);
         req->cmd[0] = TEST_UNIT_READY;
         req->timeout = HP_SW_TIMEOUT;
         req->sense = h->sense;
@@ -207,7 +206,6 @@ static int hp_sw_start_stop(struct scsi_device *sdev, struct hp_sw_dh_data *h)
         req->cmd_type = REQ_TYPE_BLOCK_PC;
         req->cmd_flags |= REQ_FAILFAST;
         req->cmd_len = COMMAND_SIZE(START_STOP);
-        memset(req->cmd, 0, MAX_COMMAND_SIZE);
         req->cmd[0] = START_STOP;
         req->cmd[4] = 1;        /* Start spin cycle */
         req->timeout = HP_SW_TIMEOUT;
diff --git a/drivers/scsi/device_handler/scsi_dh_rdac.c b/drivers/scsi/device_handler/scsi_dh_rdac.c
index 6e2f130d56de..1ba989e5a25a 100644
--- a/drivers/scsi/device_handler/scsi_dh_rdac.c
+++ b/drivers/scsi/device_handler/scsi_dh_rdac.c
@@ -225,8 +225,6 @@ static struct request *get_rdac_req(struct scsi_device *sdev,
                 return NULL;
         }
 
-        memset(rq->cmd, 0, BLK_MAX_CDB);
-
         rq->cmd_type = REQ_TYPE_BLOCK_PC;
         rq->cmd_flags |= REQ_FAILFAST | REQ_NOMERGE;
         rq->retries = RDAC_RETRIES;