linux-kernel - [PATCH v1 10/25] perf lock: Constify trace_lock

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Message-ID: <20260209174032.4142096-11-irogers@google.com>
Date: Mon,  9 Feb 2026 09:40:17 -0800
From: Ian Rogers <irogers@...gle.com>
To: Peter Zijlstra <peterz@...radead.org>, Ingo Molnar <mingo@...hat.com>, 
	Arnaldo Carvalho de Melo <acme@...nel.org>, Namhyung Kim <namhyung@...nel.org>, 
	Alexander Shishkin <alexander.shishkin@...ux.intel.com>, Jiri Olsa <jolsa@...nel.org>, 
	Ian Rogers <irogers@...gle.com>, Adrian Hunter <adrian.hunter@...el.com>, 
	James Clark <james.clark@...aro.org>, Paul Walmsley <pjw@...nel.org>, 
	Palmer Dabbelt <palmer@...belt.com>, Albert Ou <aou@...s.berkeley.edu>, 
	Alexandre Ghiti <alex@...ti.fr>, Leo Yan <leo.yan@....com>, Tianyou Li <tianyou.li@...el.com>, 
	Athira Rajeev <atrajeev@...ux.ibm.com>, Derek Foreman <derek.foreman@...labora.com>, 
	Thomas Falcon <thomas.falcon@...el.com>, Howard Chu <howardchu95@...il.com>, 
	Dmitry Vyukov <dvyukov@...gle.com>, Andi Kleen <ak@...ux.intel.com>, tanze <tanze@...inos.cn>, 
	Hrishikesh Suresh <hrishikesh123s@...il.com>, Quan Zhou <zhouquan@...as.ac.cn>, 
	Andrew Jones <ajones@...tanamicro.com>, Anup Patel <anup@...infault.org>, 
	Dapeng Mi <dapeng1.mi@...ux.intel.com>, "Dr. David Alan Gilbert" <linux@...blig.org>, 
	"Krzysztof Łopatowski" <krzysztof.m.lopatowski@...il.com>, Chun-Tse Shao <ctshao@...gle.com>, 
	Ravi Bangoria <ravi.bangoria@....com>, Swapnil Sapkal <swapnil.sapkal@....com>, 
	Chen Ni <nichen@...as.ac.cn>, Blake Jones <blakejones@...gle.com>, 
	Yujie Liu <yujie.liu@...el.com>, linux-perf-users@...r.kernel.org, 
	linux-kernel@...r.kernel.org
Subject: [PATCH v1 10/25] perf lock: Constify trace_lock_handler variables

Structs don't change and so constify.

Signed-off-by: Ian Rogers <irogers@...gle.com>
---
 tools/perf/builtin-lock.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/tools/perf/builtin-lock.c b/tools/perf/builtin-lock.c
index 78fb39d06e7c..735e6bb234ae 100644
--- a/tools/perf/builtin-lock.c
+++ b/tools/perf/builtin-lock.c
@@ -1179,7 +1179,7 @@ static int report_lock_contention_end_event(struct perf_sample *sample)
 
 /* lock oriented handlers */
 /* TODO: handlers for CPU oriented, thread oriented */
-static struct trace_lock_handler report_lock_ops  = {
+static const struct trace_lock_handler report_lock_ops  = {
 	.acquire_event		= report_lock_acquire_event,
 	.acquired_event		= report_lock_acquired_event,
 	.contended_event	= report_lock_contended_event,
@@ -1188,13 +1188,13 @@ static struct trace_lock_handler report_lock_ops  = {
 	.contention_end_event	= report_lock_contention_end_event,
 };
 
-static struct trace_lock_handler contention_lock_ops  = {
+static const struct trace_lock_handler contention_lock_ops  = {
 	.contention_begin_event	= report_lock_contention_begin_event,
 	.contention_end_event	= report_lock_contention_end_event,
 };
 
 
-static struct trace_lock_handler *trace_handler;
+static const struct trace_lock_handler *trace_handler;
 
 static int evsel__process_lock_acquire(struct perf_sample *sample)
 {
-- 
2.53.0.239.g8d8fc8a987-goog