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selftests/ftrace: Fix to check the existence of set_ftrace_filter

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If we run ftracetest on the kernel with CONFIG_DYNAMIC_FTRACE=n,
there is no set_ftrace_filter and all test cases are failed, because
reset_ftrace_filter() returns an error.
Let's check whether set_ftrace_filter exists in reset_ftrace_filter()
and clean up only set_ftrace_notrace in initialize_ftrace().

Signed-off-by: Masami Hiramatsu <mhiramat@kernel.org>
Reviewed-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
This commit is contained in:
Masami Hiramatsu 2019-11-26 17:34:16 +09:00 committed by Shuah Khan
parent e42617b825
commit fd1baf6ca2
1 changed files with 4 additions and 1 deletions
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5
tools/testing/selftests/ftrace/test.d/functions
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@ -46,6 +46,9 @@ reset_events_filter() { # reset all current setting filters
}
reset_ftrace_filter() { # reset all triggers in set_ftrace_filter
if [ ! -f set_ftrace_filter ]; then
return 0
fi
echo > set_ftrace_filter
grep -v '^#' set_ftrace_filter | while read t; do
tr=`echo $t | cut -d: -f2`
@ -93,7 +96,7 @@ initialize_ftrace() { # Reset ftrace to initial-state
disable_events
[ -f set_event_pid ] && echo > set_event_pid
[ -f set_ftrace_pid ] && echo > set_ftrace_pid
[ -f set_ftrace_filter ] && echo | tee set_ftrace_*
[ -f set_ftrace_notrace ] && echo > set_ftrace_notrace
[ -f set_graph_function ] && echo | tee set_graph_*
[ -f stack_trace_filter ] && echo > stack_trace_filter
[ -f kprobe_events ] && echo > kprobe_events