Merge tag 'perf-core-for-mingo-20160226' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux into perf/core

Pull perf/core improvements and fixes from Arnaldo Carvalho de Melo:

User visible changes:

 - Show extra line telling no entries below --percent-limit are
   at that --hierarchy level (Namhyung Kim)

 - 'perf report/top --hierarchy' assorted alignment fixes (Namhyung Kim)

 - Handle empty print fmts in 'perf script -s' i.e. when running
   python or perl scripts (Taeung Song)

 - Improve support for bpf-output events in 'perf trace' (Wang Nan)

 - Fix parsing of pmu events with empty list of modifiers, this
   cures a perf/core-only regression where '-e intel_pt//' got
   broken (Arnaldo Carvalho de Melo)

Infrastructure changes:

 - Improve missing OpenJDK devel files error message in jvmti
   Makefile (Stephane Eranian)

 - Remove duplicated code and needless script_spec__findnew() (Taeung Song)

 - Bring perf_default_config to the very beginning at main(), removing
   the need for each subcommand to do this (Wang Nan)

Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Signed-off-by: Ingo Molnar <mingo@kernel.org>

1 files changed, 3 insertions, 0 deletions

diff --git a/tools/perf/util/scripting-engines/trace-event-python.c b/tools/perf/util/scripting-engines/trace-event-python.c
index d72fafc1c800..309d90fa7698 100644
--- a/tools/perf/util/scripting-engines/trace-event-python.c
+++ b/tools/perf/util/scripting-engines/trace-event-python.c
@@ -205,6 +205,9 @@ static void define_event_symbols(struct event_format *event,
 				 const char *ev_name,
 				 struct print_arg *args)
 {
+	if (args == NULL)
+		return;
+
 	switch (args->type) {
 	case PRINT_NULL:
 		break;