linux-kernel - [PATCH] rust: auxiliary: use `pin_init::zeroed()` for ACPI device ID

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Message-ID: <20251129124309.25572-1-atharvd440@gmail.com>
Date: Sat, 29 Nov 2025 18:13:09 +0530
From: Atharv Dubey <atharvd440@...il.com>
To: gregkh@...uxfoundation.org,
	ojeda@...nel.org,
	alex.gaynor@...il.com
Cc: david.m.ertman@...el.com,
	ira.weiny@...el.com,
	leon@...nel.org,
	boqun.feng@...il.com,
	gary@...yguo.net,
	bjorn3_gh@...tonmail.com,
	lossin@...nel.org,
	a.hindborg@...nel.org,
	aliceryhl@...gle.com,
	tmgross@...ch.edu,
	dakr@...nel.org,
	rust-for-linux@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	Atharv Dubey <atharvd440@...il.com>
Subject: [PATCH] rust: auxiliary: use `pin_init::zeroed()` for ACPI device ID

Replace the previous `unsafe { core::mem::zeroed() }` initialization
for `bindings::acpi_device_id` with `pin_init::zeroed()`. This removes
the explicit unsafe block and uses the safer pinned zero-initialization
helper.

Signed-off-by: Atharv Dubey <atharvd440@...il.com>
---
 rust/kernel/auxiliary.rs | 6 +-----
 1 file changed, 1 insertion(+), 5 deletions(-)

diff --git a/rust/kernel/auxiliary.rs b/rust/kernel/auxiliary.rs
index 7a3b0b9c418e..67c5d356d754 100644
--- a/rust/kernel/auxiliary.rs
+++ b/rust/kernel/auxiliary.rs
@@ -108,11 +108,7 @@ pub const fn new(modname: &'static CStr, name: &'static CStr) -> Self {
         let name = name.to_bytes_with_nul();
         let modname = modname.to_bytes_with_nul();
 
-        // TODO: Replace with `bindings::auxiliary_device_id::default()` once stabilized for
-        // `const`.
-        //
-        // SAFETY: FFI type is valid to be zero-initialized.
-        let mut id: bindings::auxiliary_device_id = unsafe { core::mem::zeroed() };
+        let mut id: bindings::auxiliary_device_id = pin_init::zeroed();
 
         let mut i = 0;
         while i < modname.len() {
-- 
2.43.0