[PATCH v2] rust: cpumask: rename methods of Cpumask for clarity and consistency

Yilin Chen posted 1 patch 1 month, 2 weeks ago
There is a newer version of this series
rust/kernel/cpumask.rs | 10 +++++-----
1 file changed, 5 insertions(+), 5 deletions(-)
[PATCH v2] rust: cpumask: rename methods of Cpumask for clarity and consistency
Posted by Yilin Chen 1 month, 2 weeks ago
Rename `as_ref` and `as_mut_ref` to `from_raw` and `from_raw_mut` to
align with the established naming convention for constructing types
from raw pointers in the kernel's Rust codebase.

Signed-off-by: Yilin <1479826151@qq.com>
---
 rust/kernel/cpumask.rs | 10 +++++-----
 1 file changed, 5 insertions(+), 5 deletions(-)

diff --git a/rust/kernel/cpumask.rs b/rust/kernel/cpumask.rs
index c1d17826ae7b..44bb36636ee3 100644
--- a/rust/kernel/cpumask.rs
+++ b/rust/kernel/cpumask.rs
@@ -39,7 +39,7 @@
 /// fn set_clear_cpu(ptr: *mut bindings::cpumask, set_cpu: CpuId, clear_cpu: CpuId) {
 ///     // SAFETY: The `ptr` is valid for writing and remains valid for the lifetime of the
 ///     // returned reference.
-///     let mask = unsafe { Cpumask::as_mut_ref(ptr) };
+///     let mask = unsafe { Cpumask::from_raw_mut(ptr) };
 ///
 ///     mask.set(set_cpu);
 ///     mask.clear(clear_cpu);
@@ -49,13 +49,13 @@
 pub struct Cpumask(Opaque<bindings::cpumask>);
 
 impl Cpumask {
-    /// Creates a mutable reference to an existing `struct cpumask` pointer.
+    /// Creates a mutable reference from an existing `struct cpumask` pointer.
     ///
     /// # Safety
     ///
     /// The caller must ensure that `ptr` is valid for writing and remains valid for the lifetime
     /// of the returned reference.
-    pub unsafe fn as_mut_ref<'a>(ptr: *mut bindings::cpumask) -> &'a mut Self {
+    pub unsafe fn from_raw_mut<'a>(ptr: *mut bindings::cpumask) -> &'a mut Self {
         // SAFETY: Guaranteed by the safety requirements of the function.
         //
         // INVARIANT: The caller ensures that `ptr` is valid for writing and remains valid for the
@@ -63,13 +63,13 @@ pub unsafe fn as_mut_ref<'a>(ptr: *mut bindings::cpumask) -> &'a mut Self {
         unsafe { &mut *ptr.cast() }
     }
 
-    /// Creates a reference to an existing `struct cpumask` pointer.
+    /// Creates a reference from an existing `struct cpumask` pointer.
     ///
     /// # Safety
     ///
     /// The caller must ensure that `ptr` is valid for reading and remains valid for the lifetime
     /// of the returned reference.
-    pub unsafe fn as_ref<'a>(ptr: *const bindings::cpumask) -> &'a Self {
+    pub unsafe fn from_raw<'a>(ptr: *const bindings::cpumask) -> &'a Self {
         // SAFETY: Guaranteed by the safety requirements of the function.
         //
         // INVARIANT: The caller ensures that `ptr` is valid for reading and remains valid for the
-- 
2.34.1
Re: [PATCH v2] rust: cpumask: rename methods of Cpumask for clarity and consistency
Posted by Kari Argillander 1 month, 1 week ago
On Fri, 26 Dec 2025 at 18:08, Yilin Chen <1479826151@qq.com> wrote:
>
> Rename `as_ref` and `as_mut_ref` to `from_raw` and `from_raw_mut` to
> align with the established naming convention for constructing types
> from raw pointers in the kernel's Rust codebase.
>
> Signed-off-by: Yilin <1479826151@qq.com>

Alice already pointed out this in v1 of the patch [1]. You need real name here.
So this probably needs be "Yilin Chen <...>". This also needs to be fixed in
other patches you have sent to the list.

[1]: https://lore.kernel.org/rust-for-linux/aUMUA_JWalyGQdAx@google.com/#t

> ---

This patch V2. Here after "---" you need to have changelog and usually it is
good idea to have link to old patch too. For new developers I personally suggest
to check b4 tool. That will make it easier to do new versions of patches.

Overall nice work and welcome to kernel Rust development.

    Argillander