linux-kernel - [PATCH v3 RESEND RESEND 1/3] HID: core: Change hid

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Message-ID: <20250913161222.3889-2-sergeantsagara@protonmail.com>
Date: Sat, 13 Sep 2025 16:12:54 +0000
From: Rahul Rameshbabu <sergeantsagara@...tonmail.com>
To: linux-input@...r.kernel.org, linux-kernel@...r.kernel.org, rust-for-linux@...r.kernel.org
Cc: Jiri Kosina <jikos@...nel.org>, a.hindborg@...nel.org, alex.gaynor@...il.com, aliceryhl@...gle.com, benno.lossin@...ton.me, Benjamin Tissoires <benjamin.tissoires@...hat.com>, bjorn3_gh@...tonmail.com, boqun.feng@...il.com, dakr@...nel.org, db48x@...8x.net, gary@...yguo.net, ojeda@...nel.org, tmgross@...ch.edu, peter.hutterer@...-t.net, Rahul Rameshbabu <sergeantsagara@...tonmail.com>
Subject: [PATCH v3 RESEND RESEND 1/3] HID: core: Change hid_driver to use a const char* for name

name is never mutated by the core HID stack. Making name a const char*
simplifies passing the string from Rust to C. Otherwise, it becomes
difficult to pass a 'static lifetime CStr from Rust to a char*, rather than
a const char*, due to lack of guarantee that the underlying data of the
CStr will not be mutated by the C code.

Signed-off-by: Rahul Rameshbabu <sergeantsagara@...tonmail.com>
---
 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 568a9d8c749b..d65c202783da 100644
--- a/include/linux/hid.h
+++ b/include/linux/hid.h
@@ -816,7 +816,7 @@ struct hid_usage_id {
  * zero from them.
  */
 struct hid_driver {
-	char *name;
+	const char *name;
 	const struct hid_device_id *id_table;
 
 	struct list_head dyn_list;
-- 
2.47.2