perf data convert ctf: Use perf_tool__init()

Use perf_tool__init() so that more uses of 'struct perf_tool' can be const
and not relying on perf_tool__fill_defaults().
Signed-off-by: Ian Rogers <irogers@google.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Anshuman Khandual <anshuman.khandual@arm.com>
Cc: Athira Rajeev <atrajeev@linux.vnet.ibm.com>
Cc: Huacai Chen <chenhuacai@kernel.org>
Cc: Ilkka Koskinen <ilkka@os.amperecomputing.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: James Clark <james.clark@arm.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: John Garry <john.g.garry@oracle.com>
Cc: Jonathan Cameron <jonathan.cameron@huawei.com>
Cc: Kan Liang <kan.liang@linux.intel.com>
Cc: Leo Yan <leo.yan@linux.dev>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Mike Leach <mike.leach@linaro.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Nick Desaulniers <ndesaulniers@google.com>
Cc: Nick Terrell <terrelln@fb.com>
Cc: Oliver Upton <oliver.upton@linux.dev>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Song Liu <song@kernel.org>
Cc: Sun Haiyong <sunhaiyong@loongson.cn>
Cc: Suzuki Poulouse <suzuki.poulose@arm.com>
Cc: Will Deacon <will@kernel.org>
Cc: Yanteng Si <siyanteng@loongson.cn>
Cc: Yicong Yang <yangyicong@hisilicon.com>
Cc: linux-arm-kernel@lists.infradead.org
Link: https://lore.kernel.org/r/20240812204720.631678-24-irogers@google.comSigned-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

tools/perf/util/data-convert-bt.c

@@ -1607,25 +1607,23 @@ int bt_convert__perf2ctf(const char *input, const char *path,
 		.mode      = PERF_DATA_MODE_READ,
 		.force     = opts->force,
 	};
-	struct convert c = {
-		.tool = {
-			.sample          = process_sample_event,
-			.mmap            = perf_event__process_mmap,
-			.mmap2           = perf_event__process_mmap2,
-			.comm            = perf_event__process_comm,
-			.exit            = perf_event__process_exit,
-			.fork            = perf_event__process_fork,
-			.lost            = perf_event__process_lost,
-			.tracing_data    = perf_event__process_tracing_data,
-			.build_id        = perf_event__process_build_id,
-			.namespaces      = perf_event__process_namespaces,
-			.ordered_events  = true,
-			.ordering_requires_timestamps = true,
-		},
-	};
+	struct convert c = {};
 	struct ctf_writer *cw = &c.writer;
 	int err;
 
+	perf_tool__init(&c.tool, /*ordered_events=*/true);
+	c.tool.sample          = process_sample_event;
+	c.tool.mmap            = perf_event__process_mmap;
+	c.tool.mmap2           = perf_event__process_mmap2;
+	c.tool.comm            = perf_event__process_comm;
+	c.tool.exit            = perf_event__process_exit;
+	c.tool.fork            = perf_event__process_fork;
+	c.tool.lost            = perf_event__process_lost;
+	c.tool.tracing_data    = perf_event__process_tracing_data;
+	c.tool.build_id        = perf_event__process_build_id;
+	c.tool.namespaces      = perf_event__process_namespaces;
+	c.tool.ordering_requires_timestamps = true;
+
 	if (opts->all) {
 		c.tool.comm = process_comm_event;
 		c.tool.exit = process_exit_event;