[PATCH v2 07/19] rust: device: replace `kernel::c_str!` with C-Strings

Tamir Duberstein
2025-08-13T15:59:47Z

Acked-by: Danilo Krummrich <dakr at kernel.org>
Signed-off-by: Tamir Duberstein <tamird at gmail.com>
---
 rust/kernel/device.rs          | 4 +---
 rust/kernel/device/property.rs | 6 +++---
 2 files changed, 4 insertions(+), 6 deletions(-)

diff --git a/rust/kernel/device.rs b/rust/kernel/device.rs
index 449776474044..ba83cf3624fd 100644
--- a/rust/kernel/device.rs
+++ b/rust/kernel/device.rs
@@ -10,8 +10,6 @@
 };
 use core::{marker::PhantomData, ptr};

-#[cfg(CONFIG_PRINTK)]
-use crate::c_str;
 use crate::str::CStrExt as _;

 pub mod property;
@@ -265,7 +263,7 @@ unsafe fn printk(&self, klevel: &[u8], msg:
fmt::Arguments<'_>) {
             bindings::_dev_printk(
                 klevel.as_ptr().cast::<crate::ffi::c_char>(),
                 self.as_raw(),
-                c_str!("%pA").as_char_ptr(),
+                c"%pA".as_char_ptr(),

core::ptr::from_ref(&msg).cast::<crate::ffi::c_void>(),
             )
         };
diff --git a/rust/kernel/device/property.rs b/rust/kernel/device/property.rs
index 3a332a8c53a9..3eb3f36d66d0 100644
--- a/rust/kernel/device/property.rs
+++ b/rust/kernel/device/property.rs
@@ -178,11 +178,11 @@ pub fn property_count_elem<T:
PropertyInt>(&self, name: &CStr) -> Result<usize>
     /// # Examples
     ///
     /// ```
-    /// # use kernel::{c_str, device::{Device, property::FwNode},
str::CString};
+    /// # use kernel::{device::{Device, property::FwNode}, str::CString};
     /// fn examples(dev: &Device) -> Result {
     ///     let fwnode = dev.fwnode().ok_or(ENOENT)?;
-    ///     let b: u32 =
fwnode.property_read(c_str!("some-number")).required_by(dev)?;
-    ///     if let Some(s) =
fwnode.property_read::<CString>(c_str!("some-str")).optional() {
+    ///     let b: u32 =
fwnode.property_read(c"some-number").required_by(dev)?;
+    ///     if let Some(s) =
fwnode.property_read::<CString>(c"some-str").optional() {
     ///         // ...
     ///     }
     ///     Ok(())

--
2.50.1