linux-kernel - Re: [PATCH v8 1/6] rust: kernel: add `drop

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 for Android: free password hash cracker in your pocket

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

Message-ID: <CAH5fLgj=Kyk6qFGOxOXsA9bM7dMYhFO+NZefW+UyiKUkL1hyiA@mail.gmail.com>
Date: Thu, 1 Aug 2024 11:02:52 +0200
From: Alice Ryhl <aliceryhl@...gle.com>
To: Matt Gilbride <mattgilbride@...gle.com>
Cc: Miguel Ojeda <ojeda@...nel.org>, Alex Gaynor <alex.gaynor@...il.com>, 
	Wedson Almeida Filho <wedsonaf@...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@...sung.com>, 
	Greg Kroah-Hartman <gregkh@...uxfoundation.org>, Arve Hjønnevåg <arve@...roid.com>, 
	Todd Kjos <tkjos@...roid.com>, Martijn Coenen <maco@...roid.com>, 
	Joel Fernandes <joel@...lfernandes.org>, Carlos Llamas <cmllamas@...gle.com>, 
	Suren Baghdasaryan <surenb@...gle.com>, Christian Brauner <brauner@...nel.org>, Rob Landley <rob@...dley.net>, 
	Davidlohr Bueso <dave@...olabs.net>, Michel Lespinasse <michel@...pinasse.org>, 
	rust-for-linux@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v8 1/6] rust: kernel: add `drop_contents` to `BoxExt`

On Thu, Aug 1, 2024 at 11:00 AM Alice Ryhl <aliceryhl@...gle.com> wrote:
>
> On Sat, Jul 27, 2024 at 10:30 PM Matt Gilbride <mattgilbride@...gle.com> wrote:
> >
> > From: Benno Lossin <benno.lossin@...ton.me>
> >
> > Sometimes (see [1]) it is necessary to drop the value inside of a
> > `Box<T>`, but retain the allocation. For example to reuse the allocation
> > in the future.
> > Introduce a new function `drop_contents` that turns a `Box<T>` into
> > `Box<MaybeUninit<T>>` by dropping the value.
> >
> > Signed-off-by: Benno Lossin <benno.lossin@...ton.me>
> > Link: https://lore.kernel.org/rust-for-linux/20240418-b4-rbtree-v3-5-323e134390ce@google.com/ [1]
>
> Reviewed-by: Alice Ryhl <aliceryhl@...gle.com>

(We may prefer to pick this from Benno's series:
https://lore.kernel.org/rust-for-linux/20240708205325.1275473-1-benno.lossin@proton.me/
)