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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 304C53403AF; Wed, 31 Dec 2025 10:37:21 -0700 (MST) Received: by dev-csander.dev.purestorage.com (Postfix, from userid 1557716354) id 1CE0EE4234A; Wed, 31 Dec 2025 10:37:21 -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. 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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 0/5] bpf: use const pointer for struct_ops cfi_stubs Date: Wed, 31 Dec 2025 10:36:28 -0700 Message-ID: <20251231173633.3981832-1-csander@purestorage.com> X-Mailer: git-send-email 2.45.2 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit struct bpf_struct_ops's cfi_stubs field is used as a readonly pointer but has type void *. Change its type to void const * to allow it to point to readonly global memory. Update the struct_ops implementations to declare their cfi_stubs global variables as const. Caleb Sander Mateos (5): bpf: use const pointer for struct_ops cfi_stubs HID: bpf: make __bpf_hid_bpf_ops const sched_ext: make __bpf_ops_sched_ext_ops const net: make cfi_stubs globals const selftests/bpf: make cfi_stubs globals const drivers/hid/bpf/hid_bpf_struct_ops.c | 2 +- include/linux/bpf.h | 2 +- kernel/bpf/bpf_struct_ops.c | 6 +++--- kernel/sched/ext.c | 2 +- net/bpf/bpf_dummy_struct_ops.c | 2 +- net/ipv4/bpf_tcp_ca.c | 2 +- net/sched/bpf_qdisc.c | 2 +- net/smc/smc_hs_bpf.c | 2 +- .../testing/selftests/bpf/test_kmods/bpf_test_no_cfi.c | 2 +- tools/testing/selftests/bpf/test_kmods/bpf_testmod.c | 10 +++++----- 10 files changed, 16 insertions(+), 16 deletions(-) -- 2.45.2