linux-kernel - [PATCH v2 10/21] checkpatch: Deprecate rcu_read_{,un}lock

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Message-Id: <20251001144832.631770-10-paulmck@kernel.org>
Date: Wed,  1 Oct 2025 07:48:21 -0700
From: "Paul E. McKenney" <paulmck@...nel.org>
To: rcu@...r.kernel.org
Cc: linux-kernel@...r.kernel.org,
	kernel-team@...a.com,
	rostedt@...dmis.org,
	"Paul E. McKenney" <paulmck@...nel.org>,
	Joe Perches <joe@...ches.com>,
	Andy Whitcroft <apw@...onical.com>,
	Dwaipayan Ray <dwaipayanray1@...il.com>,
	Lukas Bulwahn <lukas.bulwahn@...il.com>,
	Andrii Nakryiko <andrii@...nel.org>,
	Alexei Starovoitov <ast@...nel.org>,
	Peter Zijlstra <peterz@...radead.org>,
	bpf@...r.kernel.org
Subject: [PATCH v2 10/21] checkpatch: Deprecate rcu_read_{,un}lock_trace()

Uses of rcu_read_lock_trace() and rcu_read_unlock_trace()
are better served by the new rcu_read_lock_tasks_trace() and
rcu_read_unlock_tasks_trace() APIs.  Therefore, mark the old APIs as
deprecated.

Signed-off-by: Paul E. McKenney <paulmck@...nel.org>
Acked-by: Joe Perches <joe@...ches.com>
Cc: Andy Whitcroft <apw@...onical.com>
Cc: Dwaipayan Ray <dwaipayanray1@...il.com>
Cc: Lukas Bulwahn <lukas.bulwahn@...il.com>
Cc: Andrii Nakryiko <andrii@...nel.org>
Cc: Alexei Starovoitov <ast@...nel.org>
Cc: Peter Zijlstra <peterz@...radead.org>
Cc: <bpf@...r.kernel.org>
---
 scripts/checkpatch.pl | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/scripts/checkpatch.pl b/scripts/checkpatch.pl
index e722dd6fa8ef3d..3bb7d35a5cfcba 100755
--- a/scripts/checkpatch.pl
+++ b/scripts/checkpatch.pl
@@ -860,6 +860,8 @@ our %deprecated_apis = (
 	"kunmap"				=> "kunmap_local",
 	"kmap_atomic"				=> "kmap_local_page",
 	"kunmap_atomic"				=> "kunmap_local",
+	"rcu_read_lock_trace"			=> "rcu_read_lock_tasks_trace",
+	"rcu_read_unlock_trace"			=> "rcu_read_unlock_tasks_trace",
 );
 
 #Create a search pattern for all these strings to speed up a loop below
-- 
2.40.1