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@xxxxxxxxxxxxx> --- drivers/scsi/aic7xxx_old.c | 1 - drivers/scsi/eata_pio.c | 1 - drivers/scsi/ips.c | 3 --- drivers/scsi/libsas/sas_scsi_host.c | 1 - 4 files changed, 0 insertions(+), 6 deletions(-) diff --git a/drivers/scsi/aic7xxx_old.c b/drivers/scsi/aic7xxx_old.c index 8f8db5f..2b402fa 100644 --- a/drivers/scsi/aic7xxx_old.c +++ b/drivers/scsi/aic7xxx_old.c @@ -10293,7 +10293,6 @@ static int aic7xxx_queue(struct scsi_cmnd *cmd, void (*fn)(struct scsi_cmnd *)) aic7xxx_position(cmd) = scb->hscb->tag; cmd->scsi_done = fn; cmd->result = DID_OK; - memset(cmd->sense_buffer, 0, sizeof(cmd->sense_buffer)); aic7xxx_error(cmd) = DID_OK; aic7xxx_status(cmd) = 0; cmd->host_scribble = NULL; diff --git a/drivers/scsi/eata_pio.c b/drivers/scsi/eata_pio.c index 9579507..b5a6092 100644 --- a/drivers/scsi/eata_pio.c +++ b/drivers/scsi/eata_pio.c @@ -369,7 +369,6 @@ static int eata_pio_queue(struct scsi_cmnd *cmd, cp = &hd->ccb[y]; memset(cp, 0, sizeof(struct eata_ccb)); - memset(cmd->sense_buffer, 0, sizeof(cmd->sense_buffer)); cp->status = USED; /* claim free slot */ diff --git a/drivers/scsi/ips.c b/drivers/scsi/ips.c index e54d30c..b1b2295 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. */ diff --git a/drivers/scsi/libsas/sas_scsi_host.c b/drivers/scsi/libsas/sas_scsi_host.c index 828fed1..9c04225 100644 --- a/drivers/scsi/libsas/sas_scsi_host.c +++ b/drivers/scsi/libsas/sas_scsi_host.c @@ -148,7 +148,6 @@ static struct sas_task *sas_create_task(struct scsi_cmnd *cmd, if (!task) return NULL; - *(u32 *)cmd->sense_buffer = 0; task->uldd_task = cmd; ASSIGN_SAS_TASK(cmd, task); -- 1.5.3.4 - To unsubscribe from this list: send the line "unsubscribe linux-scsi" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
