perf kwork: 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/20240812204720.631678-26-irogers@google.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

Author: captain5050

tools/perf/builtin-kwork.c

@@ -2322,12 +2322,6 @@ int cmd_kwork(int argc, const char **argv)
 {
 	static struct perf_kwork kwork = {
 		.class_list          = LIST_HEAD_INIT(kwork.class_list),
-		.tool = {
-			.mmap		= perf_event__process_mmap,
-			.mmap2		= perf_event__process_mmap2,
-			.sample		= perf_kwork__process_tracepoint_sample,
-			.ordered_events = true,
-		},
 		.atom_page_list      = LIST_HEAD_INIT(kwork.atom_page_list),
 		.sort_list           = LIST_HEAD_INIT(kwork.sort_list),
 		.cmp_id              = LIST_HEAD_INIT(kwork.cmp_id),
@@ -2462,6 +2456,11 @@ int cmd_kwork(int argc, const char **argv)
 		"record", "report", "latency", "timehist", "top", NULL
 	};
 
+	perf_tool__init(&kwork.tool, /*ordered_events=*/true);
+	kwork.tool.mmap	  = perf_event__process_mmap;
+	kwork.tool.mmap2  = perf_event__process_mmap2;
+	kwork.tool.sample = perf_kwork__process_tracepoint_sample;
+
 	argc = parse_options_subcommand(argc, argv, kwork_options,
 					kwork_subcommands, kwork_usage,
 					PARSE_OPT_STOP_AT_NON_OPTION);