scsi: qedf: Add a flag to help debugging io_req which could not be cleaned

 - The flag will help in to figure out if io_req is cleaned or not.
Signed-off-by: Shyam Sundar <ssundar@marvell.com>
Signed-off-by: Saurav Kashyap <skashyap@marvell.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>

drivers/scsi/qedf/qedf_io.c

@@ -351,6 +351,11 @@ struct qedf_ioreq *qedf_alloc_cmd(struct qedf_rport *fcport, u8 cmd_type)
 		goto out_failed;
 	}
 
+	if (test_bit(QEDF_CMD_DIRTY, &io_req->flags))
+		QEDF_ERR(&qedf->dbg_ctx,
+			 "io_req found to be dirty ox_id = 0x%x.\n",
+			 io_req->xid);
+
 	/* Clear any flags now that we've reallocated the xid */
 	io_req->flags = 0;
 	io_req->alloc = 1;
@@ -1744,6 +1749,8 @@ void qedf_flush_active_ios(struct qedf_rport *fcport, int lun)
 					    io_req->fcport == fcport) {
 						refcount =
 						kref_read(&io_req->refcount);
+						set_bit(QEDF_CMD_DIRTY,
+							&io_req->flags);
 						QEDF_ERR(&qedf->dbg_ctx,
 							 "Outstanding io_req =%p xid=0x%x flags=0x%lx, sc_cmd=%p refcount=%d cmd_type=%d.\n",
 							 io_req, io_req->xid,