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 --- simpletrace.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) (limited to 'simpletrace.c') diff --git a/simpletrace.c b/simpletrace.c index f849e42914..deb1e0742e 100644 --- a/simpletrace.c +++ b/simpletrace.c @@ -246,12 +246,14 @@ static TraceEvent* find_trace_event_by_name(const char *tname) return NULL; /* indicates end of list reached without a match */ } -void st_change_trace_event_state(const char *tname, bool tstate) +bool st_change_trace_event_state(const char *tname, bool tstate) { TraceEvent *tp; tp = find_trace_event_by_name(tname); if (tp) { tp->state = tstate; + return true; } + return false; } -- cgit v1.2.3