On Wed, 03 Jul 2019 15:50:01 -0400 Steven Rostedt <rost...@goodmis.org> wrote:
> From: "Steven Rostedt (VMware)" <rost...@goodmis.org> > > While testing on a very old kernel (3.5), the tests failed because the write > to set_event_pid in the setup code, did not exist. The tests themselves > could pass, but the setup failed causing an error. > > Other files test for existance before writing to them. Do the same for > set_event_pid and set_ftrace_pid. > > Signed-off-by: Steven Rostedt (VMware) <rost...@goodmis.org> > --- > tools/testing/selftests/ftrace/test.d/functions | 4 ++-- > 1 file changed, 2 insertions(+), 2 deletions(-) > > diff --git a/tools/testing/selftests/ftrace/test.d/functions > b/tools/testing/selftests/ftrace/test.d/functions > index 779ec11f61bd..a7b06291e32c 100644 > --- a/tools/testing/selftests/ftrace/test.d/functions > +++ b/tools/testing/selftests/ftrace/test.d/functions > @@ -91,8 +91,8 @@ initialize_ftrace() { # Reset ftrace to initial-state > reset_events_filter > reset_ftrace_filter > disable_events > - echo > set_event_pid # event tracer is always on > - echo > set_ftrace_pid > + [ -f set_event_pid ] && echo > set_event_pid # event tracer is always on I probably should remove that comment, because I believe that was why it wasn't tested :-/ -- Steve > + [ -f set_ftrace_pid ] && echo > set_ftrace_pid > [ -f set_ftrace_filter ] && echo | tee set_ftrace_* > [ -f set_graph_function ] && echo | tee set_graph_* > [ -f stack_trace_filter ] && echo > stack_trace_filter