On 18 Oct 2025, at 16:16, Tamir Duberstein [off-list ref] wrote:

From: Tamir Duberstein <redacted>

Replace the use of `as_ptr` which works through `<CStr as
Deref<Target=&[u8]>::deref()` in preparation for replacing
`kernel::str::CStr` with `core::ffi::CStr` as the latter does not
implement `Deref<Target=&[u8]>`.

Signed-off-by: Tamir Duberstein <redacted>
---
rust/kernel/regulator.rs | 9 ++++++---
1 file changed, 6 insertions(+), 3 deletions(-)

diff --git a/rust/kernel/regulator.rs b/rust/kernel/regulator.rs
index b55a201e5029..65a4eb096cae 100644
--- a/rust/kernel/regulator.rs
+++ b/rust/kernel/regulator.rs

@@ -84,7 +84,7 @@ pub struct Error<State: RegulatorState> {

pub fn devm_enable(dev: &Device<Bound>, name: &CStr) -> Result {
    // SAFETY: `dev` is a valid and bound device, while `name` is a valid C
    // string.
-    to_result(unsafe { bindings::devm_regulator_get_enable(dev.as_raw(), name.as_ptr()) })
+    to_result(unsafe { bindings::devm_regulator_get_enable(dev.as_raw(), name.as_char_ptr()) })
}

/// Same as [`devm_enable`], but calls `devm_regulator_get_enable_optional`

@@ -102,7 +102,9 @@ pub fn devm_enable(dev: &Device<Bound>, name: &CStr) -> Result {

pub fn devm_enable_optional(dev: &Device<Bound>, name: &CStr) -> Result {
    // SAFETY: `dev` is a valid and bound device, while `name` is a valid C
    // string.
-    to_result(unsafe { bindings::devm_regulator_get_enable_optional(dev.as_raw(), name.as_ptr()) })
+    to_result(unsafe {
+        bindings::devm_regulator_get_enable_optional(dev.as_raw(), name.as_char_ptr())
+    })
}

/// A `struct regulator` abstraction.

@@ -268,7 +270,8 @@ pub fn get_voltage(&self) -> Result<Voltage> {
    fn get_internal(dev: &Device, name: &CStr) -> Result<Regulator<T>> {
        // SAFETY: It is safe to call `regulator_get()`, on a device pointer
        // received from the C code.
-        let inner = from_err_ptr(unsafe { bindings::regulator_get(dev.as_raw(), name.as_ptr()) })?;
+        let inner =
+            from_err_ptr(unsafe { bindings::regulator_get(dev.as_raw(), name.as_char_ptr()) })?;

        // SAFETY: We can safely trust `inner` to be a pointer to a valid
        // regulator if `ERR_PTR` was not returned.

-- 
2.51.1