HID: bpf: constify hid_ops

The hid_ops struct is never modified. Mark it as const.

Signed-off-by: Thomas Weißschuh <linux@weissschuh.net>
Link: https://patch.msgid.link/20241127-hid-bpf-ops-v1-1-f9e41bfa3afd@weissschuh.net
Signed-off-by: Benjamin Tissoires <bentiss@kernel.org>

Author: t-8ch

drivers/hid/bpf/hid_bpf_dispatch.c

@@ -19,7 +19,7 @@
 #include <linux/module.h>
 #include "hid_bpf_dispatch.h"
 
-struct hid_ops *hid_ops;
+const struct hid_ops *hid_ops;
 EXPORT_SYMBOL(hid_ops);
 
 u8 *

drivers/hid/hid-core.c

@@ -3064,7 +3064,7 @@ int hid_check_keys_pressed(struct hid_device *hid)
 EXPORT_SYMBOL_GPL(hid_check_keys_pressed);
 
 #ifdef CONFIG_HID_BPF
-static struct hid_ops __hid_ops = {
+static const struct hid_ops __hid_ops = {
 	.hid_get_report = hid_get_report,
 	.hid_hw_raw_request = __hid_hw_raw_request,
 	.hid_hw_output_report = __hid_hw_output_report,

include/linux/hid_bpf.h

@@ -78,7 +78,7 @@ struct hid_ops {
 	const struct bus_type *bus_type;
 };
 
-extern struct hid_ops *hid_ops;
+extern const struct hid_ops *hid_ops;
 
 /**
  * struct hid_bpf_ops - A BPF struct_ops of callbacks allowing to attach HID-BPF