- ds_put_cfm_fault(&ds, old_cfm_fault, cfm->fault);
- VLOG_INFO("%s: CFM fault status changed:%s", cfm->name,
- ds_cstr_ro(&ds));
+ ds_put_cstr(&ds, "from [");
+ ds_put_cfm_fault(&ds, old_cfm_fault);
+ ds_put_cstr(&ds, "] to [");
+ ds_put_cfm_fault(&ds, cfm->fault);
+ ds_put_char(&ds, ']');
+ VLOG_INFO("%s: CFM faults changed %s.", cfm->name, ds_cstr(&ds));