linux-kernel - [PATCH 2/5] HID: bpf: make __bpf_hid_bpf

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Message-ID: <20251231173633.3981832-3-csander@purestorage.com>
Date: Wed, 31 Dec 2025 10:36:30 -0700
From: Caleb Sander Mateos <csander@...estorage.com>
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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,
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	linux-arm-kernel@...ts.infradead.org,
	Caleb Sander Mateos <csander@...estorage.com>
Subject: [PATCH 2/5] HID: bpf: make __bpf_hid_bpf_ops const

Now that struct bpf_struct_ops's cfi_stubs field is a const pointer,
declare the __bpf_hid_bpf_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 <csander@...estorage.com>
---
 drivers/hid/bpf/hid_bpf_struct_ops.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/hid/bpf/hid_bpf_struct_ops.c b/drivers/hid/bpf/hid_bpf_struct_ops.c
index 702c22fae136..30ddcf78e0ea 100644
--- a/drivers/hid/bpf/hid_bpf_struct_ops.c
+++ b/drivers/hid/bpf/hid_bpf_struct_ops.c
@@ -286,11 +286,11 @@ static int __hid_bpf_hw_request(struct hid_bpf_ctx *ctx, unsigned char reportnum
 static int __hid_bpf_hw_output_report(struct hid_bpf_ctx *ctx, u64 source)
 {
 	return 0;
 }
 
-static struct hid_bpf_ops __bpf_hid_bpf_ops = {
+static const struct hid_bpf_ops __bpf_hid_bpf_ops = {
 	.hid_device_event = __hid_bpf_device_event,
 	.hid_rdesc_fixup = __hid_bpf_rdesc_fixup,
 	.hid_hw_request = __hid_bpf_hw_request,
 	.hid_hw_output_report = __hid_bpf_hw_output_report,
 };
-- 
2.45.2