[SCSI] aic7xxx_old, eata_pio, ips, libsas: don't zero out sense_buffer in queuecommand

LLDs don't need to zero out scsi_cmnd::sense_buffer in queuecommand
since scsi-ml does. This is a preparation of the future changes to
allocate the sense_buffer only when necessary.

Many LLDs zero out the sense_buffer before touching it on the error
case. This patch lets them alone for now because new APIs for them
would be added later on.

Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Acked-by: "Salyzyn, Mark" <Mark_Salyzyn@adaptec.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>

1 files changed, 0 insertions, 3 deletions

diff --git a/drivers/scsi/ips.c b/drivers/scsi/ips.c
index e54d30c6a342..b1b229506113 100644
--- a/drivers/scsi/ips.c
+++ b/drivers/scsi/ips.c
@@ -2736,8 +2736,6 @@ ips_next(ips_ha_t * ha, int intr)
                 SC->result = DID_OK;
                 SC->host_scribble = NULL;
 
-                memset(SC->sense_buffer, 0, sizeof (SC->sense_buffer));
-
                 scb->target_id = SC->device->id;
                 scb->lun = SC->device->lun;
                 scb->bus = SC->device->channel;
@@ -3821,7 +3819,6 @@ ips_send_cmd(ips_ha_t * ha, ips_scb_t * scb)
                         /* attempted, a Check Condition occurred, and Sense   */
                         /* Data indicating an Invalid CDB OpCode is returned. */
                         sp = (char *) scb->scsi_cmd->sense_buffer;
-                        memset(sp, 0, sizeof (scb->scsi_cmd->sense_buffer));
 
                         sp[0] = 0x70;   /* Error Code               */
                         sp[2] = ILLEGAL_REQUEST;        /* Sense Key 5 Illegal Req. */