diff options
| -rw-r--r-- | hw/s390x/css.c | 16 |
1 files changed, 4 insertions, 12 deletions
diff --git a/hw/s390x/css.c b/hw/s390x/css.c index b6d4fcaf06..4f964b7691 100644 --- a/hw/s390x/css.c +++ b/hw/s390x/css.c @@ -1245,9 +1245,6 @@ int do_subchannel_work_virtual(SubchDev *sch) } else if (s->ctrl & SCSW_FCTL_START_FUNC) { /* Triggered by both ssch and rsch. */ sch_handle_start_func_virtual(sch); - } else { - /* Cannot happen. */ - return 0; } css_inject_io_interrupt(sch); return 0; @@ -1255,22 +1252,17 @@ int do_subchannel_work_virtual(SubchDev *sch) int do_subchannel_work_passthrough(SubchDev *sch) { - int ret; + int ret = 0; SCSW *s = &sch->curr_status.scsw; if (s->ctrl & SCSW_FCTL_CLEAR_FUNC) { /* TODO: Clear handling */ sch_handle_clear_func(sch); - ret = 0; } else if (s->ctrl & SCSW_FCTL_HALT_FUNC) { /* TODO: Halt handling */ sch_handle_halt_func(sch); - ret = 0; } else if (s->ctrl & SCSW_FCTL_START_FUNC) { ret = sch_handle_start_func_passthrough(sch); - } else { - /* Cannot happen. */ - return -ENODEV; } return ret; @@ -1278,11 +1270,11 @@ int do_subchannel_work_passthrough(SubchDev *sch) static int do_subchannel_work(SubchDev *sch) { - if (sch->do_subchannel_work) { - return sch->do_subchannel_work(sch); - } else { + if (!sch->do_subchannel_work) { return -EINVAL; } + g_assert(sch->curr_status.scsw.ctrl & SCSW_CTRL_MASK_FCTL); + return sch->do_subchannel_work(sch); } static void copy_pmcw_to_guest(PMCW *dest, const PMCW *src) |