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Message-Id: <20240803-hid-const-fixup-v2-3-f53d7a7b29d8@weissschuh.net>
Date: Sat, 03 Aug 2024 14:34:19 +0200
From: Thomas Weißschuh <linux@...ssschuh.net>
To: Jiri Kosina <jikos@...nel.org>, Benjamin Tissoires <bentiss@...nel.org>
Cc: linux-input@...r.kernel.org, linux-kernel@...r.kernel.org,
Thomas Weißschuh <linux@...ssschuh.net>
Subject: [PATCH v2 3/7] HID: constify hid_device::rdesc
Once a report descriptor has been created by the HID core it is not
supposed to be modified anymore.
Enforce this invariant through the type system.
Signed-off-by: Thomas Weißschuh <linux@...ssschuh.net>
---
include/linux/hid.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/include/linux/hid.h b/include/linux/hid.h
index e7a5d6f2f2eb..dda34d8cad19 100644
--- a/include/linux/hid.h
+++ b/include/linux/hid.h
@@ -602,7 +602,7 @@ struct hid_ll_driver;
struct hid_device { /* device report descriptor */
__u8 *dev_rdesc;
unsigned dev_rsize;
- __u8 *rdesc;
+ const __u8 *rdesc;
unsigned rsize;
struct hid_collection *collection; /* List of HID collections */
unsigned collection_size; /* Number of allocated hid_collections */
--
2.46.0
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