GCC9 is confused by this comment when building with CFLAG -Wimplicit-fallthrough=2:
CC ppc64-softmmu/hw/ppc/spapr_rtc.o hw/ppc/spapr_events.c: In function ‘rtas_event_log_to_source’: hw/ppc/spapr_events.c:312:12: error: this statement may fall through [-Werror=implicit-fallthrough=] 312 | if (spapr_ovec_test(spapr->ov5_cas, OV5_HP_EVT)) { | ^ hw/ppc/spapr_events.c:317:5: note: here 317 | case RTAS_LOG_TYPE_EPOW: | ^~~~ cc1: all warnings being treated as errors Rewrite the comment using 'fall through' which is recognized by GCC and static analyzers. Reported-by: Stefan Weil <s...@weilnetz.de> Signed-off-by: Philippe Mathieu-Daudé <phi...@redhat.com> --- hw/ppc/spapr_events.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/hw/ppc/spapr_events.c b/hw/ppc/spapr_events.c index ae0f093f59..0a98894ad6 100644 --- a/hw/ppc/spapr_events.c +++ b/hw/ppc/spapr_events.c @@ -313,7 +313,7 @@ rtas_event_log_to_source(SpaprMachineState *spapr, int log_type) g_assert(source->enabled); break; } - /* fall back to epow for legacy hotplug interrupt source */ + /* fall through back to epow for legacy hotplug interrupt source */ case RTAS_LOG_TYPE_EPOW: source = spapr_event_sources_get_source(spapr->event_sources, EVENT_CLASS_EPOW); -- 2.20.1