diff options
| -rw-r--r-- | drivers/scsi/scsi_lib.c | 25 |
1 files changed, 9 insertions, 16 deletions
diff --git a/drivers/scsi/scsi_lib.c b/drivers/scsi/scsi_lib.c index c2a9601bd302..41c19c75dab4 100644 --- a/drivers/scsi/scsi_lib.c +++ b/drivers/scsi/scsi_lib.c @@ -1871,36 +1871,21 @@ static int scsi_mq_prep_fn(struct request *req) struct scsi_cmnd *cmd = blk_mq_rq_to_pdu(req); struct scsi_device *sdev = req->q->queuedata; struct Scsi_Host *shost = sdev->host; - unsigned char *sense_buf = cmd->sense_buffer; - unsigned int unchecked_isa_dma = cmd->flags & SCMD_UNCHECKED_ISA_DMA; struct scatterlist *sg; - /* zero out the cmd, except for the embedded scsi_request */ - memset((char *)cmd + sizeof(cmd->req), 0, - sizeof(*cmd) - sizeof(cmd->req) + shost->hostt->cmd_size); + scsi_init_command(sdev, cmd); req->special = cmd; cmd->request = req; - cmd->device = sdev; - cmd->sense_buffer = sense_buf; - cmd->flags = unchecked_isa_dma; cmd->tag = req->tag; - cmd->prot_op = SCSI_PROT_NORMAL; - INIT_LIST_HEAD(&cmd->list); - INIT_DELAYED_WORK(&cmd->abort_work, scmd_eh_abort_handler); - cmd->jiffies_at_alloc = jiffies; - - scsi_add_cmd_to_list(cmd); - sg = (void *)cmd + sizeof(struct scsi_cmnd) + shost->hostt->cmd_size; cmd->sdb.table.sgl = sg; if (scsi_host_get_prot(shost)) { - cmd->prot_sdb = (void *)sg + scsi_mq_sgl_size(shost); memset(cmd->prot_sdb, 0, sizeof(struct scsi_data_buffer)); cmd->prot_sdb->table.sgl = @@ -2026,6 +2011,7 @@ static int scsi_init_request(struct blk_mq_tag_set *set, struct request *rq, struct Scsi_Host *shost = set->driver_data; const bool unchecked_isa_dma = shost->unchecked_isa_dma; struct scsi_cmnd *cmd = blk_mq_rq_to_pdu(rq); + struct scatterlist *sg; if (unchecked_isa_dma) cmd->flags |= SCMD_UNCHECKED_ISA_DMA; @@ -2034,6 +2020,13 @@ static int scsi_init_request(struct blk_mq_tag_set *set, struct request *rq, if (!cmd->sense_buffer) return -ENOMEM; cmd->req.sense = cmd->sense_buffer; + + if (scsi_host_get_prot(shost)) { + sg = (void *)cmd + sizeof(struct scsi_cmnd) + + shost->hostt->cmd_size; + cmd->prot_sdb = (void *)sg + scsi_mq_sgl_size(shost); + } + return 0; } |