linux-kernel - [PATCH] rust: arc: remove unused PhantomData

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Message-Id: <20241104-simplify-arc-v1-1-a4ffc290f905@gmail.com>
Date: Mon, 04 Nov 2024 17:23:44 -0400
From: Tamir Duberstein <tamird@...il.com>
To: Miguel Ojeda <ojeda@...nel.org>, Alex Gaynor <alex.gaynor@...il.com>, 
 Boqun Feng <boqun.feng@...il.com>, Gary Guo <gary@...yguo.net>, 
 Björn Roy Baron <bjorn3_gh@...tonmail.com>, 
 Benno Lossin <benno.lossin@...ton.me>, 
 Andreas Hindborg <a.hindborg@...nel.org>, Alice Ryhl <aliceryhl@...gle.com>, 
 Trevor Gross <tmgross@...ch.edu>
Cc: rust-for-linux@...r.kernel.org, linux-kernel@...r.kernel.org, 
 Tamir Duberstein <tamird@...il.com>
Subject: [PATCH] rust: arc: remove unused PhantomData

There's no need for this. The type had the same form when it was first
introduced, so it seems this was never necessary.

Fixed: 9dc043655003 ("rust: sync: add `Arc` for ref-counted allocations")
Signed-off-by: Tamir Duberstein <tamird@...il.com>
---
 rust/kernel/sync/arc.rs | 2 --
 1 file changed, 2 deletions(-)

diff --git a/rust/kernel/sync/arc.rs b/rust/kernel/sync/arc.rs
index db9da352d588f65348aa7a5204abbb165b70197f..7e54d31538273d410f80fd65b2070e75e4f69428 100644
--- a/rust/kernel/sync/arc.rs
+++ b/rust/kernel/sync/arc.rs
@@ -127,7 +127,6 @@
 /// ```
 pub struct Arc<T: ?Sized> {
     ptr: NonNull<ArcInner<T>>,
-    _p: PhantomData<ArcInner<T>>,
 }
 
 #[pin_data]
@@ -219,7 +218,6 @@ unsafe fn from_inner(inner: NonNull<ArcInner<T>>) -> Self {
         // INVARIANT: By the safety requirements, the invariants hold.
         Arc {
             ptr: inner,
-            _p: PhantomData,
         }
     }
 

---
base-commit: ae7851c29747fa3765ecb722fe722117a346f988
change-id: 20241104-simplify-arc-70c3574b5fac

Best regards,
-- 
Tamir Duberstein <tamird@...il.com>