From: FUJITA Tomonori <fujita.tomonori@xxxxxxxxxxxxx>
Tomo is the author of this patch
On Wed, Apr 23 2008 at 17:57 +0300, Boaz Harrosh <bharrosh@xxxxxxxxxxx> wrote:
> blk_get_request and queue_flush initializes rq->cmd (rq_init does)
> so the users don't need to do that.
>
> Signed-off-by: FUJITA Tomonori <fujita.tomonori@xxxxxxxxxxxxx>
> Signed-off-by: Boaz Harrosh <bharrosh@xxxxxxxxxxx>
> Cc: Geert Uytterhoeven <Geert.Uytterhoeven@xxxxxxxxxxx>
> Cc: James Bottomley <James.Bottomley@xxxxxxxxxxxxxxxxxxxxx>
> ---
> block/scsi_ioctl.c | 3 ---
> drivers/block/pktcdvd.c | 2 --
> drivers/block/ps3disk.c | 1 -
> drivers/cdrom/cdrom.c | 1 -
> drivers/md/dm-emc.c | 2 --
> drivers/md/dm-mpath-hp-sw.c | 1 -
> drivers/md/dm-mpath-rdac.c | 1 -
> drivers/scsi/sd.c | 1 -
> 8 files changed, 0 insertions(+), 12 deletions(-)
>
> diff --git a/block/scsi_ioctl.c b/block/scsi_ioctl.c
> index a2c3a93..ffa3720 100644
> --- a/block/scsi_ioctl.c
> +++ b/block/scsi_ioctl.c
> @@ -217,8 +217,6 @@ EXPORT_SYMBOL_GPL(blk_verify_command);
> static int blk_fill_sghdr_rq(struct request_queue *q, struct request *rq,
> struct sg_io_hdr *hdr, int has_write_perm)
> {
> - memset(rq->cmd, 0, BLK_MAX_CDB); /* ATAPI hates garbage after CDB */
> -
> if (copy_from_user(rq->cmd, hdr->cmdp, hdr->cmd_len))
> return -EFAULT;
> if (blk_verify_command(rq->cmd, has_write_perm))
> @@ -531,7 +529,6 @@ static int __blk_send_generic(struct request_queue *q, struct gendisk *bd_disk,
> rq->data_len = 0;
> rq->extra_len = 0;
> rq->timeout = BLK_DEFAULT_SG_TIMEOUT;
> - memset(rq->cmd, 0, sizeof(rq->cmd));
> rq->cmd[0] = cmd;
> rq->cmd[4] = data;
> rq->cmd_len = 6;
> diff --git a/drivers/block/pktcdvd.c b/drivers/block/pktcdvd.c
> index 18feb1c..3b806c9 100644
> --- a/drivers/block/pktcdvd.c
> +++ b/drivers/block/pktcdvd.c
> @@ -776,8 +776,6 @@ static int pkt_generic_packet(struct pktcdvd_device *pd, struct packet_command *
>
> rq->cmd_len = COMMAND_SIZE(cgc->cmd[0]);
> memcpy(rq->cmd, cgc->cmd, CDROM_PACKET_SIZE);
> - if (sizeof(rq->cmd) > CDROM_PACKET_SIZE)
> - memset(rq->cmd + CDROM_PACKET_SIZE, 0, sizeof(rq->cmd) - CDROM_PACKET_SIZE);
>
> rq->timeout = 60*HZ;
> rq->cmd_type = REQ_TYPE_BLOCK_PC;
> diff --git a/drivers/block/ps3disk.c b/drivers/block/ps3disk.c
> index 7483f94..9c32b75 100644
> --- a/drivers/block/ps3disk.c
> +++ b/drivers/block/ps3disk.c
> @@ -406,7 +406,6 @@ static void ps3disk_prepare_flush(struct request_queue *q, struct request *req)
>
> dev_dbg(&dev->sbd.core, "%s:%u\n", __func__, __LINE__);
>
> - memset(req->cmd, 0, sizeof(req->cmd));
> req->cmd_type = REQ_TYPE_FLUSH;
> }
>
> diff --git a/drivers/cdrom/cdrom.c b/drivers/cdrom/cdrom.c
> index ac38290..69f26eb 100644
> --- a/drivers/cdrom/cdrom.c
> +++ b/drivers/cdrom/cdrom.c
> @@ -2194,7 +2194,6 @@ static int cdrom_read_cdda_bpc(struct cdrom_device_info *cdi, __u8 __user *ubuf,
> if (ret)
> break;
>
> - memset(rq->cmd, 0, sizeof(rq->cmd));
> rq->cmd[0] = GPCMD_READ_CD;
> rq->cmd[1] = 1 << 2;
> rq->cmd[2] = (lba >> 24) & 0xff;
> diff --git a/drivers/md/dm-emc.c b/drivers/md/dm-emc.c
> index 6b91b9a..3ea5ad4 100644
> --- a/drivers/md/dm-emc.c
> +++ b/drivers/md/dm-emc.c
> @@ -110,8 +110,6 @@ static struct request *get_failover_req(struct emc_handler *h,
> memset(rq->sense, 0, SCSI_SENSE_BUFFERSIZE);
> rq->sense_len = 0;
>
> - memset(&rq->cmd, 0, BLK_MAX_CDB);
> -
> rq->timeout = EMC_FAILOVER_TIMEOUT;
> rq->cmd_type = REQ_TYPE_BLOCK_PC;
> rq->cmd_flags |= REQ_FAILFAST | REQ_NOMERGE;
> diff --git a/drivers/md/dm-mpath-hp-sw.c b/drivers/md/dm-mpath-hp-sw.c
> index 204bf42..b63a0ab 100644
> --- a/drivers/md/dm-mpath-hp-sw.c
> +++ b/drivers/md/dm-mpath-hp-sw.c
> @@ -137,7 +137,6 @@ static struct request *hp_sw_get_request(struct dm_path *path)
> req->sense = h->sense;
> memset(req->sense, 0, SCSI_SENSE_BUFFERSIZE);
>
> - memset(&req->cmd, 0, BLK_MAX_CDB);
> req->cmd[0] = START_STOP;
> req->cmd[4] = 1;
> req->cmd_len = COMMAND_SIZE(req->cmd[0]);
> diff --git a/drivers/md/dm-mpath-rdac.c b/drivers/md/dm-mpath-rdac.c
> index e04eb5c..95e7773 100644
> --- a/drivers/md/dm-mpath-rdac.c
> +++ b/drivers/md/dm-mpath-rdac.c
> @@ -284,7 +284,6 @@ static struct request *get_rdac_req(struct rdac_handler *h,
> return NULL;
> }
>
> - memset(&rq->cmd, 0, BLK_MAX_CDB);
> rq->sense = h->sense;
> memset(rq->sense, 0, SCSI_SENSE_BUFFERSIZE);
> rq->sense_len = 0;
> diff --git a/drivers/scsi/sd.c b/drivers/scsi/sd.c
> index 3cea17d..01cefbb 100644
> --- a/drivers/scsi/sd.c
> +++ b/drivers/scsi/sd.c
> @@ -860,7 +860,6 @@ static int sd_sync_cache(struct scsi_disk *sdkp)
>
> static void sd_prepare_flush(struct request_queue *q, struct request *rq)
> {
> - memset(rq->cmd, 0, sizeof(rq->cmd));
> rq->cmd_type = REQ_TYPE_BLOCK_PC;
> rq->timeout = SD_TIMEOUT;
> rq->cmd[0] = SYNCHRONIZE_CACHE;
Boaz
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