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| author | FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> | 2008-04-29 09:54:36 +0200 |
|---|---|---|
| committer | Jens Axboe <jens.axboe@oracle.com> | 2008-04-29 14:48:55 +0200 |
| commit | 992b5bceee447a32ef2d617730ae0d03c063eedd (patch) | |
| tree | cf8a457afc939b9d6040b809382e8a45adc9eee1 /block | |
| parent | 4917fa292558593d36b2880977ea206f7727dbe5 (diff) | |
| download | lwn-992b5bceee447a32ef2d617730ae0d03c063eedd.tar.gz lwn-992b5bceee447a32ef2d617730ae0d03c063eedd.zip | |
block: 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.
The purpose of this patch is to remove sizeof(rq->cmd) and &rq->cmd,
as a preparation for large command support, which changes rq->cmd from
the static array to a pointer. sizeof(rq->cmd) will not make sense and
&rq->cmd won't work.
Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Cc: James Bottomley <James.Bottomley@HansenPartnership.com>
Cc: Alasdair G Kergon <agk@redhat.com>
Cc: Jens Axboe <jens.axboe@oracle.com>
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
Diffstat (limited to 'block')
| -rw-r--r-- | block/scsi_ioctl.c | 3 |
1 files changed, 0 insertions, 3 deletions
diff --git a/block/scsi_ioctl.c b/block/scsi_ioctl.c index a2c3a936ebf9..ffa3720e6ca0 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; |