perf tools: tool->finished_round() doesn't need perf_session

It is all about flushing the ordered queue or piping it thru, no need
for a perf_session pointer.

Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Borislav Petkov <bp@suse.de>
Cc: David Ahern <dsahern@gmail.com>
Cc: Don Zickus <dzickus@redhat.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lkml.kernel.org/n/tip-g47fx3ys0t9271cp0dcabjc7@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
diff --git a/tools/perf/util/tool.h b/tools/perf/util/tool.h
index bb2708b..51d9e56 100644
--- a/tools/perf/util/tool.h
+++ b/tools/perf/util/tool.h
@@ -10,6 +10,7 @@
 struct perf_sample;
 struct perf_tool;
 struct machine;
+struct ordered_events;
 
 typedef int (*event_sample)(struct perf_tool *tool, union perf_event *event,
 			    struct perf_sample *sample,
@@ -25,6 +26,9 @@
 typedef int (*event_op2)(struct perf_tool *tool, union perf_event *event,
 			 struct perf_session *session);
 
+typedef int (*event_oe)(struct perf_tool *tool, union perf_event *event,
+			struct ordered_events *oe);
+
 struct perf_tool {
 	event_sample	sample,
 			read;
@@ -38,8 +42,8 @@
 			unthrottle;
 	event_attr_op	attr;
 	event_op2	tracing_data;
-	event_op2	finished_round,
-			build_id,
+	event_oe	finished_round;
+	event_op2	build_id,
 			id_index;
 	bool		ordered_events;
 	bool		ordering_requires_timestamps;