[PATCH v6 27/27] perf session: Constify tool

[Ian Rogers <irogers@google.com>]

Make tool const now that all uses are const and
perf_tool__fill_defaults won't be used. The aim is to better capture
that sessions don't mutate tools.

Signed-off-by: Ian Rogers <irogers@google.com>
Reviewed-by: Adrian Hunter <adrian.hunter@intel.com>
---
 tools/perf/util/session.c | 6 +++---
 tools/perf/util/session.h | 2 +-
 2 files changed, 4 insertions(+), 4 deletions(-)

diff --git a/tools/perf/util/session.c b/tools/perf/util/session.c
index ad5da61d2330..0c7cc092887d 100644
--- a/tools/perf/util/session.c
+++ b/tools/perf/util/session.c
@@ -1765,7 +1765,7 @@ static int __perf_session__process_decomp_events(struct perf_session *session);
 static int __perf_session__process_pipe_events(struct perf_session *session)
 {
 	struct ordered_events *oe = &session->ordered_events;
-	struct perf_tool *tool = session->tool;
+	const struct perf_tool *tool = session->tool;
 	struct ui_progress prog;
 	union perf_event *event;
 	uint32_t size, cur_size = 0;
@@ -2195,7 +2195,7 @@ static int __perf_session__process_events(struct perf_session *session)
 		.in_place_update = session->data->in_place_update,
 	};
 	struct ordered_events *oe = &session->ordered_events;
-	struct perf_tool *tool = session->tool;
+	const struct perf_tool *tool = session->tool;
 	struct ui_progress prog;
 	int err;
 
@@ -2245,7 +2245,7 @@ static int __perf_session__process_events(struct perf_session *session)
 static int __perf_session__process_dir_events(struct perf_session *session)
 {
 	struct perf_data *data = session->data;
-	struct perf_tool *tool = session->tool;
+	const struct perf_tool *tool = session->tool;
 	int i, ret, readers, nr_readers;
 	struct ui_progress prog;
 	u64 total_size = perf_data__size(session->data);
diff --git a/tools/perf/util/session.h b/tools/perf/util/session.h
index 7f69baeae7fb..7c8dd6956330 100644
--- a/tools/perf/util/session.h
+++ b/tools/perf/util/session.h
@@ -43,7 +43,7 @@ struct perf_session {
 	u64			one_mmap_offset;
 	struct ordered_events	ordered_events;
 	struct perf_data	*data;
-	struct perf_tool	*tool;
+	const struct perf_tool	*tool;
 	u64			bytes_transferred;
 	u64			bytes_compressed;
 	struct zstd_data	zstd_data;
-- 
2.45.2.1089.g2a221341d9-goog