diff options
Diffstat (limited to 'drivers/scsi/ufs')
| -rw-r--r-- | drivers/scsi/ufs/ufshcd.c | 44 |
1 files changed, 21 insertions, 23 deletions
diff --git a/drivers/scsi/ufs/ufshcd.c b/drivers/scsi/ufs/ufshcd.c index 1098f7a94993..5bf7be884e1d 100644 --- a/drivers/scsi/ufs/ufshcd.c +++ b/drivers/scsi/ufs/ufshcd.c @@ -378,35 +378,33 @@ static void ufshcd_add_command_trace(struct ufs_hba *hba, unsigned int tag, struct scsi_cmnd *cmd = lrbp->cmd; int transfer_len = -1; + if (!cmd) + return; + if (!trace_ufshcd_command_enabled()) { /* trace UPIU W/O tracing command */ - if (cmd) - ufshcd_add_cmd_upiu_trace(hba, tag, str_t); + ufshcd_add_cmd_upiu_trace(hba, tag, str_t); return; } - if (cmd) { /* data phase exists */ - /* trace UPIU also */ - ufshcd_add_cmd_upiu_trace(hba, tag, str_t); - opcode = cmd->cmnd[0]; - lba = sectors_to_logical(cmd->device, blk_rq_pos(cmd->request)); + /* trace UPIU also */ + ufshcd_add_cmd_upiu_trace(hba, tag, str_t); + opcode = cmd->cmnd[0]; + lba = sectors_to_logical(cmd->device, blk_rq_pos(cmd->request)); - if ((opcode == READ_10) || (opcode == WRITE_10)) { - /* - * Currently we only fully trace read(10) and write(10) - * commands - */ - transfer_len = be32_to_cpu( - lrbp->ucd_req_ptr->sc.exp_data_transfer_len); - if (opcode == WRITE_10) - group_id = lrbp->cmd->cmnd[6]; - } else if (opcode == UNMAP) { - /* - * The number of Bytes to be unmapped beginning with the - * lba. - */ - transfer_len = blk_rq_bytes(cmd->request); - } + if (opcode == READ_10 || opcode == WRITE_10) { + /* + * Currently we only fully trace read(10) and write(10) commands + */ + transfer_len = + be32_to_cpu(lrbp->ucd_req_ptr->sc.exp_data_transfer_len); + if (opcode == WRITE_10) + group_id = lrbp->cmd->cmnd[6]; + } else if (opcode == UNMAP) { + /* + * The number of Bytes to be unmapped beginning with the lba. + */ + transfer_len = blk_rq_bytes(cmd->request); } intr = ufshcd_readl(hba, REG_INTERRUPT_STATUS); |