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Tue, 20 Jan 2026 06:02:40 -0800 (PST) Received: from kailas.hsd1.or.comcast.net ([2601:1c2:1803:3ab0::2e2b]) by smtp.gmail.com with ESMTPSA id d9443c01a7336-2a773d4e5basm17649535ad.94.2026.01.20.06.02.39 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 20 Jan 2026 06:02:39 -0800 (PST) From: Ryan Foster To: rust-for-linux@vger.kernel.org, linux-kernel@vger.kernel.org Cc: ojeda@kernel.org, boqun.feng@gmail.com, gary@garyguo.net, bjorn3_gh@protonmail.com, lossin@kernel.org, a.hindborg@kernel.org, aliceryhl@google.com, tmgross@umich.edu, gregkh@linuxfoundation.org, rafael@kernel.org, dakr@kernel.org, linux-fsdevel@vger.kernel.org, Ryan Foster Subject: [PATCH] rust: replace `kernel::c_str!` with C-Strings in seq_file and device Date: Tue, 20 Jan 2026 06:02:35 -0800 Message-ID: <20260120140235.126919-1-foster.ryan.r@gmail.com> X-Mailer: git-send-email 2.52.0 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" C-String literals were added in Rust 1.77. Replace instances of `kernel::c_str!` with C-String literals where possible. This patch updates seq_file and device modules to use the native C-string literal syntax (c"...") instead of the kernel::c_str! macro. Signed-off-by: Ryan Foster --- rust/kernel/device.rs | 5 +---- rust/kernel/seq_file.rs | 4 ++-- 2 files changed, 3 insertions(+), 6 deletions(-) diff --git a/rust/kernel/device.rs b/rust/kernel/device.rs index 71b200df0f40..1c3d1d962d15 100644 --- a/rust/kernel/device.rs +++ b/rust/kernel/device.rs @@ -12,9 +12,6 @@ }; use core::{any::TypeId, marker::PhantomData, ptr}; =20 -#[cfg(CONFIG_PRINTK)] -use crate::c_str; - pub mod property; =20 // Assert that we can `read()` / `write()` a `TypeId` instance from / into= `struct driver_type`. @@ -462,7 +459,7 @@ unsafe fn printk(&self, klevel: &[u8], msg: fmt::Argume= nts<'_>) { bindings::_dev_printk( klevel.as_ptr().cast::(), self.as_raw(), - c_str!("%pA").as_char_ptr(), + c"%pA".as_char_ptr(), core::ptr::from_ref(&msg).cast::(), ) }; diff --git a/rust/kernel/seq_file.rs b/rust/kernel/seq_file.rs index 855e533813a6..518265558d66 100644 --- a/rust/kernel/seq_file.rs +++ b/rust/kernel/seq_file.rs @@ -4,7 +4,7 @@ //! //! C header: [`include/linux/seq_file.h`](srctree/include/linux/seq_file.= h) =20 -use crate::{bindings, c_str, fmt, str::CStrExt as _, types::NotThreadSafe,= types::Opaque}; +use crate::{bindings, fmt, str::CStrExt as _, types::NotThreadSafe, types:= :Opaque}; =20 /// A utility for generating the contents of a seq file. #[repr(transparent)] @@ -36,7 +36,7 @@ pub fn call_printf(&self, args: fmt::Arguments<'_>) { unsafe { bindings::seq_printf( self.inner.get(), - c_str!("%pA").as_char_ptr(), + c"%pA".as_char_ptr(), core::ptr::from_ref(&args).cast::(), ); } --=20 2.52.0