libata-scsi: do not respond with "invalid field" for FORMAT UNIT

It does not make sense and is confusing to respond with "Invalid
field in CDB" while we have no support at all implemented for
FORMAT UNIT. It is decent to let it go to the default, which
will respond with "Invalid command operation code" instead.

Signed-off-by: Tom Yan <tom.ty89@gmail.com>
Signed-off-by: Tejun Heo <tj@kernel.org>

diff --git a/drivers/ata/libata-scsi.c b/drivers/ata/libata-scsi.c
index bfec66fb26e27a2c9d7ecbb42549027ac1578d5e..f1125fd7243dcf375e3a5a80af51b03312b27dff 100644 (file)
--- a/drivers/ata/libata-scsi.c
+++ b/drivers/ata/libata-scsi.c
@@ -4039,11 +4039,6 @@ void ata_scsi_simulate(struct ata_device *dev, struct scsi_cmnd *cmd)
        args.done = cmd->scsi_done;
 
        switch(scsicmd[0]) {
-       /* TODO: worth improving? */
-       case FORMAT_UNIT:
-               ata_scsi_invalid_field(dev, cmd, 0);
-               break;
-
        case INQUIRY:
                if (scsicmd[1] & 2)                /* is CmdDt set?  */
                    ata_scsi_invalid_field(dev, cmd, 1);