linux-kernel - [PATCH 0/5] bpf: use const pointer for struct_ops cfi

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Message-ID: <20251231173633.3981832-1-csander@purestorage.com>
Date: Wed, 31 Dec 2025 10:36:28 -0700
From: Caleb Sander Mateos <csander@...estorage.com>
To: Jiri Kosina <jikos@...nel.org>,
	Benjamin Tissoires <bentiss@...nel.org>,
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Cc: linux-input@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	bpf@...r.kernel.org,
	netdev@...r.kernel.org,
	sched-ext@...ts.linux.dev,
	linux-rdma@...r.kernel.org,
	linux-s390@...r.kernel.org,
	linux-kselftest@...r.kernel.org,
	linux-stm32@...md-mailman.stormreply.com,
	linux-arm-kernel@...ts.infradead.org,
	Caleb Sander Mateos <csander@...estorage.com>
Subject: [PATCH 0/5] bpf: use const pointer for struct_ops cfi_stubs

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