linux-kernel - Re: [PATCH] rust_binder: clean Clippy `mem-replace-with-default` warning

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [day] [month] [year] [list]

Message-ID: <CANiq72=a2WMxQ0kKXp0_J8tnrJWb7pibWxZ2novB4SMV7gxcRQ@mail.gmail.com>
Date: Sun, 19 Oct 2025 21:42:38 +0200
From: Miguel Ojeda <miguel.ojeda.sandonis@...il.com>
To: Miguel Ojeda <ojeda@...nel.org>
Cc: Alex Gaynor <alex.gaynor@...il.com>, Greg Kroah-Hartman <gregkh@...uxfoundation.org>, 
	Arve Hjønnevåg <arve@...roid.com>, 
	Todd Kjos <tkjos@...roid.com>, Martijn Coenen <maco@...roid.com>, 
	Joel Fernandes <joelagnelf@...dia.com>, Christian Brauner <christian@...uner.io>, 
	Carlos Llamas <cmllamas@...gle.com>, Suren Baghdasaryan <surenb@...gle.com>, 
	Boqun Feng <boqun.feng@...il.com>, Gary Guo <gary@...yguo.net>, 
	Björn Roy Baron <bjorn3_gh@...tonmail.com>, 
	Benno Lossin <lossin@...nel.org>, Andreas Hindborg <a.hindborg@...nel.org>, 
	Alice Ryhl <aliceryhl@...gle.com>, Trevor Gross <tmgross@...ch.edu>, 
	Danilo Krummrich <dakr@...nel.org>, rust-for-linux@...r.kernel.org, 
	linux-kernel@...r.kernel.org, patches@...ts.linux.dev
Subject: Re: [PATCH] rust_binder: clean Clippy `mem-replace-with-default` warning

On Sun, Oct 12, 2025 at 11:32 PM Miguel Ojeda <ojeda@...nel.org> wrote:
>
> Starting with Rust 1.87.0, Clippy reports:
>
>       CLIPPY     drivers/android/binder/rust_binder_main.o
>     error: replacing a value of type `T` with `T::default()` is better expressed using `core::mem::take`
>        --> drivers/android/binder/node.rs:690:32
>         |
>     690 |             _unused_capacity = mem::replace(&mut inner.freeze_list, KVVec::new());
>         |                                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: consider using: `core::mem::take(&mut inner.freeze_list)`
>         |
>         = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#mem_replace_with_default
>         = note: `-D clippy::mem-replace-with-default` implied by `-D warnings`
>         = help: to override `-D warnings` add `#[allow(clippy::mem_replace_with_default)]`
>
> Thus clean it up as suggested.
>
> Fixes: eafedbc7c050 ("rust_binder: add Rust Binder driver")
> Signed-off-by: Miguel Ojeda <ojeda@...nel.org>

For completeness: this is a duplicate (from myself!) of

    https://lore.kernel.org/all/20250924130510.752115-1-ojeda@kernel.org/

which Greg already applied as commit 7e69a24b6b35 ("rust_binder: clean
`clippy::mem_replace_with_default` warning"), in -next for a few days.

It would be nice to get it to Linus soon, so that Clippy builds are clean.

Thanks!

Cheers,
Miguel