rust: refactor ARef and AlwaysRefCounted imports

[PATCH 05/10] rust: kernel: Update ARef and AlwaysRefCounted imports to use sync::aref

Posted by Shankari Anand 1 week, 1 day ago

Update call sites in `i2c.rs` to import `ARef` and
`AlwaysRefCounted` from `sync::aref` instead of `types`.

This aligns with the ongoing effort to move `ARef` and
`AlwaysRefCounted` to sync.

Suggested-by: Benno Lossin <lossin@kernel.org>
Link: https://github.com/Rust-for-Linux/linux/issues/1173
Signed-off-by: Shankari Anand <shankari.ak0208@gmail.com>
---
 rust/kernel/i2c.rs | 10 ++++------
 1 file changed, 4 insertions(+), 6 deletions(-)

diff --git a/rust/kernel/i2c.rs b/rust/kernel/i2c.rs
index 1aee46f59460..c50ca464d87c 100644
--- a/rust/kernel/i2c.rs
+++ b/rust/kernel/i2c.rs
@@ -17,10 +17,8 @@
     of,
     prelude::*,
     str::CStrExt as _,
-    types::{
-        AlwaysRefCounted,
-        Opaque, //
-    }, //
+    sync::aref::AlwaysRefCounted,
+    types::Opaque, //
 };
 
 use core::{
@@ -32,7 +30,7 @@
     }, //
 };
 
-use kernel::types::ARef;
+use kernel::sync::aref::ARef;
 
 /// An I2C device id table.
 #[repr(transparent)]
@@ -408,7 +406,7 @@ pub fn get(index: i32) -> Result<ARef<Self>> {
 kernel::impl_device_context_into_aref!(I2cAdapter);
 
 // SAFETY: Instances of `I2cAdapter` are always reference-counted.
-unsafe impl crate::types::AlwaysRefCounted for I2cAdapter {
+unsafe impl crate::sync::aref::AlwaysRefCounted for I2cAdapter {
     fn inc_ref(&self) {
         // SAFETY: The existence of a shared reference guarantees that the refcount is non-zero.
         unsafe { bindings::i2c_get_adapter(self.index()) };
-- 
2.34.1

Re: [PATCH 05/10] rust: kernel: Update ARef and AlwaysRefCounted imports to use sync::aref

Posted by Igor Korotin 2 days, 12 hours ago

On 11/23/2025 9:24 AM, Shankari Anand wrote:
> Update call sites in `i2c.rs` to import `ARef` and
> `AlwaysRefCounted` from `sync::aref` instead of `types`.
> 
> This aligns with the ongoing effort to move `ARef` and
> `AlwaysRefCounted` to sync.
> 
> Suggested-by: Benno Lossin <lossin@kernel.org>
> Link: https://github.com/Rust-for-Linux/linux/issues/1173
> Signed-off-by: Shankari Anand <shankari.ak0208@gmail.com>
> ---
>   rust/kernel/i2c.rs | 10 ++++------
>   1 file changed, 4 insertions(+), 6 deletions(-)
> 
> diff --git a/rust/kernel/i2c.rs b/rust/kernel/i2c.rs
> index 1aee46f59460..c50ca464d87c 100644
> --- a/rust/kernel/i2c.rs
> +++ b/rust/kernel/i2c.rs
> @@ -17,10 +17,8 @@
>       of,
>       prelude::*,
>       str::CStrExt as _,
> -    types::{
> -        AlwaysRefCounted,
> -        Opaque, //
> -    }, //
> +    sync::aref::AlwaysRefCounted,
> +    types::Opaque, //
>   };
>   
>   use core::{
> @@ -32,7 +30,7 @@
>       }, //
>   };
>   
> -use kernel::types::ARef;
> +use kernel::sync::aref::ARef;
>   
>   /// An I2C device id table.
>   #[repr(transparent)]
> @@ -408,7 +406,7 @@ pub fn get(index: i32) -> Result<ARef<Self>> {
>   kernel::impl_device_context_into_aref!(I2cAdapter);
>   
>   // SAFETY: Instances of `I2cAdapter` are always reference-counted.
> -unsafe impl crate::types::AlwaysRefCounted for I2cAdapter {
> +unsafe impl crate::sync::aref::AlwaysRefCounted for I2cAdapter {
>       fn inc_ref(&self) {
>           // SAFETY: The existence of a shared reference guarantees that the refcount is non-zero.
>           unsafe { bindings::i2c_get_adapter(self.index()) };

I'm fine with this going through either tree.

Acked-by: Igor Korotin <igor.korotin.linux@gmail.com>

Thanks

Re: [PATCH 05/10] rust: kernel: Update ARef and AlwaysRefCounted imports to use sync::aref

Posted by Igor Korotin 1 week, 1 day ago

Hello Shankari

On 11/23/2025 9:24 AM, Shankari Anand wrote:
> Update call sites in `i2c.rs` to import `ARef` and
> `AlwaysRefCounted` from `sync::aref` instead of `types`.
> 
> This aligns with the ongoing effort to move `ARef` and
> `AlwaysRefCounted` to sync.
> 
> Suggested-by: Benno Lossin <lossin@kernel.org>
> Link: https://github.com/Rust-for-Linux/linux/issues/1173
> Signed-off-by: Shankari Anand <shankari.ak0208@gmail.com>
> ---
>   rust/kernel/i2c.rs | 10 ++++------
>   1 file changed, 4 insertions(+), 6 deletions(-)
> 
> diff --git a/rust/kernel/i2c.rs b/rust/kernel/i2c.rs
> index 1aee46f59460..c50ca464d87c 100644
> --- a/rust/kernel/i2c.rs
> +++ b/rust/kernel/i2c.rs
> @@ -17,10 +17,8 @@
>       of,
>       prelude::*,
>       str::CStrExt as _,
> -    types::{
> -        AlwaysRefCounted,
> -        Opaque, //
> -    }, //
> +    sync::aref::AlwaysRefCounted,
> +    types::Opaque, //
>   };
>   
>   use core::{
> @@ -32,7 +30,7 @@
>       }, //
>   };
>   
> -use kernel::types::ARef;
> +use kernel::sync::aref::ARef;
>   
>   /// An I2C device id table.
>   #[repr(transparent)]
> @@ -408,7 +406,7 @@ pub fn get(index: i32) -> Result<ARef<Self>> {
>   kernel::impl_device_context_into_aref!(I2cAdapter);
>   
>   // SAFETY: Instances of `I2cAdapter` are always reference-counted.
> -unsafe impl crate::types::AlwaysRefCounted for I2cAdapter {
> +unsafe impl crate::sync::aref::AlwaysRefCounted for I2cAdapter {

NIT: This module already imports `AlwaysRefCounted`, so please use the
imported name instead of the full path for consistency.

>       fn inc_ref(&self) {
>           // SAFETY: The existence of a shared reference guarantees that the refcount is non-zero.
>           unsafe { bindings::i2c_get_adapter(self.index()) };

Thanks
Igor