From f871d6893a7bf8c14db162f6e75a5f8157e4c2bb Mon Sep 17 00:00:00 2001 From: Blue Swirl Date: Wed, 13 Oct 2010 19:14:29 +0000 Subject: trace: print a warning if user tries to enable an unknown trace event There was no warning if a bad trace event name was given to 'trace-event' command, thus the user could think that the command was successful even if this was not the case. Print a warning if the user tries to enable a trace event which is not known. Acked-by: Stefan Hajnoczi Signed-off-by: Blue Swirl --- monitor.c | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-) (limited to 'monitor.c') diff --git a/monitor.c b/monitor.c index fbb678d..260cc02 100644 --- a/monitor.c +++ b/monitor.c @@ -549,7 +549,11 @@ static void do_change_trace_event_state(Monitor *mon, const QDict *qdict) { const char *tp_name = qdict_get_str(qdict, "name"); bool new_state = qdict_get_bool(qdict, "option"); - st_change_trace_event_state(tp_name, new_state); + int ret = st_change_trace_event_state(tp_name, new_state); + + if (!ret) { + monitor_printf(mon, "unknown event name \"%s\"\n", tp_name); + } } static void do_trace_file(Monitor *mon, const QDict *qdict) -- cgit v1.1