isci: kill device_sequence

Now that we have upleveled device reassignment protection to the
isci_remote_device reference count we no longer need this level of
self-defense.

Signed-off-by: Dan Williams <dan.j.williams@intel.com>

1 files changed, 0 insertions, 9 deletions

diff --git a/drivers/scsi/isci/request.h b/drivers/scsi/isci/request.h
index 9bb7c36257f3..a91d1d6060ce 100644
--- a/drivers/scsi/isci/request.h
+++ b/drivers/scsi/isci/request.h
@@ -231,14 +231,6 @@ struct scic_sds_request {
          */
         u32 saved_rx_frame_index;
 
-        /*
-         * This field in the recorded device sequence for the io request.
-         * This is recorded during the build operation and is compared in the
-         * start operation.  If the sequence is different then there was a
-         * change of devices from the build to start operations.
-         */
-        u8 device_sequence;
-
         union {
                 struct {
                         union {
@@ -262,7 +254,6 @@ struct scic_sds_request {
                         struct dev_to_host_fis rsp;
                 } stp;
         };
-
 };
 
 static inline struct scic_sds_request *to_sci_req(struct scic_sds_stp_request *stp_req)