nvme/scsi: Remove START STOP emulation
Now that the broken power state control is gone, it appears to serve
no purpose. Just delete it. NVME devices don't have a concept of
started vs stopped anyway.
Signed-off-by: Andy Lutomirski <luto@kernel.org>
diff --git a/drivers/nvme/host/scsi.c b/drivers/nvme/host/scsi.c
index 3eaa4d2..6369d48 100644
--- a/drivers/nvme/host/scsi.c
+++ b/drivers/nvme/host/scsi.c
@@ -2165,32 +2165,6 @@
return nvme_trans_status_code(hdr, nvme_sc);
}
-static int nvme_trans_start_stop(struct nvme_ns *ns, struct sg_io_hdr *hdr,
- u8 *cmd)
-{
- u8 immed, pcmod, no_flush, start;
-
- immed = cmd[1] & 0x01;
- pcmod = cmd[3] & 0x0f;
- no_flush = cmd[4] & 0x04;
- start = cmd[4] & 0x01;
-
- if (immed != 0) {
- return nvme_trans_completion(hdr, SAM_STAT_CHECK_CONDITION,
- ILLEGAL_REQUEST, SCSI_ASC_INVALID_CDB,
- SCSI_ASCQ_CAUSE_NOT_REPORTABLE);
- } else {
- if (no_flush == 0) {
- /* Issue NVME FLUSH command prior to START STOP UNIT */
- int res = nvme_trans_synchronize_cache(ns, hdr);
- if (res)
- return res;
- }
-
- return 0;
- }
-}
-
static int nvme_trans_format_unit(struct nvme_ns *ns, struct sg_io_hdr *hdr,
u8 *cmd)
{
@@ -2446,9 +2420,6 @@
case SECURITY_PROTOCOL_OUT:
retcode = nvme_trans_security_protocol(ns, hdr, cmd);
break;
- case START_STOP:
- retcode = nvme_trans_start_stop(ns, hdr, cmd);
- break;
case SYNCHRONIZE_CACHE:
retcode = nvme_trans_synchronize_cache(ns, hdr);
break;
