scsi: remove ordered_tags scsi_device field

Remove the ordered_tags field, we haven't been issuing ordered tags based
on it since the big barrier rework in 2010.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Mike Christie <michaelc@cs.wisc.edu>
Reviewed-by: Bart Van Assche <bvanassche@acm.org>
Reviewed-by: Martin K. Petersen <martin.petersen@oracle.com>

2 files changed, 0 insertions, 10 deletions

diff --git a/include/scsi/scsi_device.h b/include/scsi/scsi_device.h
index 50d47e6e89d1..e8fecb5ea79a 100644
--- a/include/scsi/scsi_device.h
+++ b/include/scsi/scsi_device.h
@@ -141,7 +141,6 @@ struct scsi_device {
         unsigned ppr:1;         /* Device supports PPR messages */
         unsigned tagged_supported:1;    /* Supports SCSI-II tagged queuing */
         unsigned simple_tags:1; /* simple queue tag messages are enabled */
-        unsigned ordered_tags:1;/* ordered queue tag messages are enabled */
         unsigned was_reset:1;   /* There was a bus reset on the bus for 
                                  * this device */
         unsigned expecting_cc_ua:1; /* Expecting a CHECK_CONDITION/UNIT_ATTN
diff --git a/include/scsi/scsi_tcq.h b/include/scsi/scsi_tcq.h
index 032df74b66d7..342f38c5b065 100644
--- a/include/scsi/scsi_tcq.h
+++ b/include/scsi/scsi_tcq.h
@@ -21,17 +21,11 @@ int scsi_change_queue_type(struct scsi_device *sdev, int tag_type);
 /**
  * scsi_get_tag_type - get the type of tag the device supports
  * @sdev:       the scsi device
- *
- * Notes:
- *      If the drive only supports simple tags, returns MSG_SIMPLE_TAG
- *      if it supports all tag types, returns MSG_ORDERED_TAG.
  */
 static inline int scsi_get_tag_type(struct scsi_device *sdev)
 {
         if (!sdev->tagged_supported)
                 return 0;
-        if (sdev->ordered_tags)
-                return MSG_ORDERED_TAG;
         if (sdev->simple_tags)
                 return MSG_SIMPLE_TAG;
         return 0;
@@ -41,15 +35,12 @@ static inline void scsi_set_tag_type(struct scsi_device *sdev, int tag)
 {
         switch (tag) {
         case MSG_ORDERED_TAG:
-                sdev->ordered_tags = 1;
-                /* fall through */
         case MSG_SIMPLE_TAG:
                 sdev->simple_tags = 1;
                 break;
         case 0:
                 /* fall through */
         default:
-                sdev->ordered_tags = 0;
                 sdev->simple_tags = 0;
                 break;
         }