linux-kernel - [PATCH 3/3] HID: bpf: make bus_type const in struct hid_bpf

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Message-ID: <2023122048-dormitory-headboard-e248@gregkh>
Date: Wed, 20 Dec 2023 08:38:48 +0100
From: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To: jikos@...nel.org,
	benjamin.tissoires@...hat.com
Cc: linux-kernel@...r.kernel.org,
	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	linux-input@...r.kernel.org
Subject: [PATCH 3/3] HID: bpf: make bus_type const in struct hid_bpf_ops

The struct bus_type pointer in hid_bpf_ops just passes the pointer to
the driver core, and the driver core can handle, and expects, a constant
pointer, so also make the pointer constant in hid_bpf_ops.

Part of the process of moving all usages of struct bus_type to be
constant to move them all to read-only memory.

Cc: Jiri Kosina <jikos@...nel.org>
Cc: Benjamin Tissoires <benjamin.tissoires@...hat.com>
Cc: linux-input@...r.kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
---
 include/linux/hid_bpf.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/include/linux/hid_bpf.h b/include/linux/hid_bpf.h
index e9afb61e6ee0..840cd254172d 100644
--- a/include/linux/hid_bpf.h
+++ b/include/linux/hid_bpf.h
@@ -115,7 +115,7 @@ struct hid_bpf_ops {
 				  size_t len, enum hid_report_type rtype,
 				  enum hid_class_request reqtype);
 	struct module *owner;
-	struct bus_type *bus_type;
+	const struct bus_type *bus_type;
 };
 
 extern struct hid_bpf_ops *hid_bpf_ops;
-- 
2.43.0