netdev - [PATCH 11/17] rust: miscdevice: replace `kernel::c

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Message-Id: <20250710-core-cstr-cstrings-v1-11-027420ea799e@gmail.com>
Date: Thu, 10 Jul 2025 11:31:14 -0400
From: Tamir Duberstein <tamird@...il.com>
To: "Rafael J. Wysocki" <rafael@...nel.org>, 
 Viresh Kumar <viresh.kumar@...aro.org>, Miguel Ojeda <ojeda@...nel.org>, 
 Alex Gaynor <alex.gaynor@...il.com>, Boqun Feng <boqun.feng@...il.com>, 
 Gary Guo <gary@...yguo.net>, 
 Björn Roy Baron <bjorn3_gh@...tonmail.com>, 
 Benno Lossin <lossin@...nel.org>, Andreas Hindborg <a.hindborg@...nel.org>, 
 Alice Ryhl <aliceryhl@...gle.com>, Trevor Gross <tmgross@...ch.edu>, 
 Danilo Krummrich <dakr@...nel.org>, 
 Maarten Lankhorst <maarten.lankhorst@...ux.intel.com>, 
 Maxime Ripard <mripard@...nel.org>, Thomas Zimmermann <tzimmermann@...e.de>, 
 David Airlie <airlied@...il.com>, Simona Vetter <simona@...ll.ch>, 
 FUJITA Tomonori <fujita.tomonori@...il.com>, Andrew Lunn <andrew@...n.ch>, 
 Heiner Kallweit <hkallweit1@...il.com>, 
 Russell King <linux@...linux.org.uk>, 
 "David S. Miller" <davem@...emloft.net>, Eric Dumazet <edumazet@...gle.com>, 
 Jakub Kicinski <kuba@...nel.org>, Paolo Abeni <pabeni@...hat.com>, 
 Michael Turquette <mturquette@...libre.com>, 
 Stephen Boyd <sboyd@...nel.org>, Breno Leitao <leitao@...ian.org>, 
 Greg Kroah-Hartman <gregkh@...uxfoundation.org>, 
 Luis Chamberlain <mcgrof@...nel.org>, Russ Weight <russ.weight@...ux.dev>, 
 Dave Ertman <david.m.ertman@...el.com>, Ira Weiny <ira.weiny@...el.com>, 
 Leon Romanovsky <leon@...nel.org>, Bjorn Helgaas <bhelgaas@...gle.com>, 
 Krzysztof Wilczyński <kwilczynski@...nel.org>, 
 Arnd Bergmann <arnd@...db.de>, Brendan Higgins <brendan.higgins@...ux.dev>, 
 David Gow <davidgow@...gle.com>, Rae Moar <rmoar@...gle.com>, 
 Jens Axboe <axboe@...nel.dk>
Cc: linux-pm@...r.kernel.org, linux-kernel@...r.kernel.org, 
 rust-for-linux@...r.kernel.org, nouveau@...ts.freedesktop.org, 
 dri-devel@...ts.freedesktop.org, netdev@...r.kernel.org, 
 linux-clk@...r.kernel.org, linux-pci@...r.kernel.org, 
 linux-kselftest@...r.kernel.org, kunit-dev@...glegroups.com, 
 linux-block@...r.kernel.org, Tamir Duberstein <tamird@...il.com>
Subject: [PATCH 11/17] rust: miscdevice: replace `kernel::c_str!` with
 C-Strings

C-String literals were added in Rust 1.77. Replace instances of
`kernel::c_str!` with C-String literals where possible.

Acked-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Reviewed-by: Alice Ryhl <aliceryhl@...gle.com>
Signed-off-by: Tamir Duberstein <tamird@...il.com>
---
 samples/rust/rust_misc_device.rs | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/samples/rust/rust_misc_device.rs b/samples/rust/rust_misc_device.rs
index c881fd6dbd08..12b64296e912 100644
--- a/samples/rust/rust_misc_device.rs
+++ b/samples/rust/rust_misc_device.rs
@@ -98,7 +98,6 @@
 use core::pin::Pin;

 use kernel::{
-    c_str,
     device::Device,
     fs::File,
     ioctl::{_IO, _IOC_SIZE, _IOR, _IOW},
@@ -133,7 +132,7 @@ fn init(_module: &'static ThisModule) -> impl PinInit<Self, Error> {
         pr_info!("Initialising Rust Misc Device Sample\n");

         let options = MiscDeviceOptions {
-            name: c_str!("rust-misc-device"),
+            name: c"rust-misc-device",
         };

         try_pin_init!(Self {

-- 
2.50.0