[PATCH 3/6] scsi: Remove REZERO_UNIT emulation

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REZERO_UNIT command is obsolete. Remove support for it.

Signed-off-by: Hannes Reinecke <hare@xxxxxxx>
---
 hw/scsi-bus.c  |    3 ---
 hw/scsi-defs.h |    1 -
 hw/scsi-disk.c |    7 -------
 3 files changed, 0 insertions(+), 11 deletions(-)

diff --git a/hw/scsi-bus.c b/hw/scsi-bus.c
index facc98d..52a6784 100644
--- a/hw/scsi-bus.c
+++ b/hw/scsi-bus.c
@@ -223,7 +223,6 @@ static int scsi_req_length(SCSIRequest *req, uint8_t *cmd)
 
     switch(cmd[0]) {
     case TEST_UNIT_READY:
-    case REZERO_UNIT:
     case START_STOP:
     case SEEK_6:
     case WRITE_FILEMARKS:
@@ -516,8 +515,6 @@ static const char *scsi_command_name(uint8_t cmd)
 {
     static const char *names[] = {
         [ TEST_UNIT_READY          ] = "TEST_UNIT_READY",
-        [ REZERO_UNIT              ] = "REZERO_UNIT",
-        /* REWIND and REZERO_UNIT use the same operation code */
         [ REQUEST_SENSE            ] = "REQUEST_SENSE",
         [ FORMAT_UNIT              ] = "FORMAT_UNIT",
         [ READ_BLOCK_LIMITS        ] = "READ_BLOCK_LIMITS",
diff --git a/hw/scsi-defs.h b/hw/scsi-defs.h
index 8513983..1f40c5c 100644
--- a/hw/scsi-defs.h
+++ b/hw/scsi-defs.h
@@ -25,7 +25,6 @@
  */
 
 #define TEST_UNIT_READY       0x00
-#define REZERO_UNIT           0x01
 #define REQUEST_SENSE         0x03
 #define FORMAT_UNIT           0x04
 #define READ_BLOCK_LIMITS     0x05
diff --git a/hw/scsi-disk.c b/hw/scsi-disk.c
index 910d3b5..323368a 100644
--- a/hw/scsi-disk.c
+++ b/hw/scsi-disk.c
@@ -972,12 +972,6 @@ static int scsi_disk_emulate_command(SCSIDiskReq *r, uint8_t *outbuf)
         break;
     case VERIFY:
         break;
-    case REZERO_UNIT:
-        DPRINTF("Rezero Unit\n");
-        if (!bdrv_is_inserted(s->bs)) {
-            goto not_ready;
-        }
-        break;
     default:
         scsi_command_complete(r, CHECK_CONDITION, SENSE_CODE(INVALID_OPCODE));
         return -1;
@@ -1059,7 +1053,6 @@ static int32_t scsi_send_command(SCSIRequest *req, uint8_t *buf)
     case SERVICE_ACTION_IN:
     case REPORT_LUNS:
     case VERIFY:
-    case REZERO_UNIT:
         rc = scsi_disk_emulate_command(r, outbuf);
         if (rc < 0) {
             return 0;
-- 
1.7.3.4

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