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Wed, 31 Dec 2025 09:37:23 -0800 (PST) X-Relaying-Domain: purestorage.com Received: from dev-csander.dev.purestorage.com (dev-csander.dev.purestorage.com [10.49.34.222]) by c7-smtp-2023.dev.purestorage.com (Postfix) with ESMTP id 291DA341C73; Wed, 31 Dec 2025 10:37:22 -0700 (MST) Received: by dev-csander.dev.purestorage.com (Postfix, from userid 1557716354) id 22C62E4234A; Wed, 31 Dec 2025 10:37:22 -0700 (MST) From: Caleb Sander Mateos To: Jiri Kosina , Benjamin Tissoires , Alexei Starovoitov , Daniel Borkmann , John Fastabend , Andrii Nakryiko , Martin KaFai Lau , Eduard Zingerman , Song Liu , Yonghong Song , KP Singh , Stanislav Fomichev , Hao Luo , Jiri Olsa , Tejun Heo , David Vernet , Andrea Righi , Changwoo Min , Ingo Molnar , Peter Zijlstra , Juri Lelli , Vincent Guittot , Dietmar Eggemann , Steven Rostedt , Ben Segall , Mel Gorman , Valentin Schneider , "David S. Miller" , Eric Dumazet , Jakub Kicinski , Paolo Abeni , Simon Horman , David Ahern , Jamal Hadi Salim , Cong Wang , Jiri Pirko , "D. Wythe" , Dust Li , Sidraya Jayagond , Wenjia Zhang , Mahanta Jambigi , Tony Lu , Wen Gu , Shuah Khan , Maxime Coquelin , Alexandre Torgue Cc: linux-input@vger.kernel.org, linux-kernel@vger.kernel.org, bpf@vger.kernel.org, netdev@vger.kernel.org, sched-ext@lists.linux.dev, linux-rdma@vger.kernel.org, linux-s390@vger.kernel.org, linux-kselftest@vger.kernel.org, linux-stm32@st-md-mailman.stormreply.com, linux-arm-kernel@lists.infradead.org, Caleb Sander Mateos Subject: [PATCH 3/5] sched_ext: make __bpf_ops_sched_ext_ops const Date: Wed, 31 Dec 2025 10:36:31 -0700 Message-ID: <20251231173633.3981832-4-csander@purestorage.com> X-Mailer: git-send-email 2.45.2 In-Reply-To: <20251231173633.3981832-1-csander@purestorage.com> References: <20251231173633.3981832-1-csander@purestorage.com> Precedence: bulk X-Mailing-List: sched-ext@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Now that struct bpf_struct_ops's cfi_stubs field is a const pointer, declare the __bpf_ops_sched_ext_ops global variable it points to as const. This allows the global variable to be placed in readonly memory. Signed-off-by: Caleb Sander Mateos --- kernel/sched/ext.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/kernel/sched/ext.c b/kernel/sched/ext.c index 94164f2dec6d..af8250b64f47 100644 --- a/kernel/sched/ext.c +++ b/kernel/sched/ext.c @@ -5336,11 +5336,11 @@ static s32 sched_ext_ops__init(void) { return -EINVAL; } static void sched_ext_ops__exit(struct scx_exit_info *info) {} static void sched_ext_ops__dump(struct scx_dump_ctx *ctx) {} static void sched_ext_ops__dump_cpu(struct scx_dump_ctx *ctx, s32 cpu, bool idle) {} static void sched_ext_ops__dump_task(struct scx_dump_ctx *ctx, struct task_struct *p) {} -static struct sched_ext_ops __bpf_ops_sched_ext_ops = { +static const struct sched_ext_ops __bpf_ops_sched_ext_ops = { .select_cpu = sched_ext_ops__select_cpu, .enqueue = sched_ext_ops__enqueue, .dequeue = sched_ext_ops__dequeue, .dispatch = sched_ext_ops__dispatch, .tick = sched_ext_ops__tick, -- 2.45.2