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Message-ID: <CAH5fLghdgP7aBBv3aMrvWP3sfRjM_cc72Wsp=CZczh9dfem3Ow@mail.gmail.com>
Date: Fri, 27 Jun 2025 16:20:00 +0200
From: Alice Ryhl <aliceryhl@...gle.com>
To: Andreas Hindborg <a.hindborg@...nel.org>
Cc: Danilo Krummrich <dakr@...nel.org>, 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 <lossin@...nel.org>, Trevor Gross <tmgross@...ch.edu>,
Bjorn Helgaas <bhelgaas@...gle.com>, Krzysztof Wilczyński <kwilczynski@...nel.org>,
Greg Kroah-Hartman <gregkh@...uxfoundation.org>, "Rafael J. Wysocki" <rafael@...nel.org>,
Tamir Duberstein <tamird@...il.com>, Viresh Kumar <viresh.kumar@...aro.org>,
rust-for-linux@...r.kernel.org, linux-kernel@...r.kernel.org,
linux-pci@...r.kernel.org, Maíra Canal <mcanal@...lia.com>
Subject: Re: [PATCH v3 0/2] rust: improve `ForeignOwnable`
On Thu, Jun 12, 2025 at 3:11 PM Andreas Hindborg <a.hindborg@...nel.org> wrote:
>
> This series improves `ForeignOwnable` by:
>
> - changing the way we assert pointer allignment,
> - improving the safety requirements of the trait.
>
> Signed-off-by: Andreas Hindborg <a.hindborg@...nel.org>
> ---
> Changes in v3:
> - Remove more instances of absolute paths to `ffi` types.
> - Reword safety requirements in terms of function guarantees.
> - Add a patch to restrict use of null pointers with `ForeignOwnable`.
> - Link to v2: https://lore.kernel.org/r/20250610-pointed-to-v2-1-fad8f92cf1e5@kernel.org
>
> Changes in v2:
> - Replace qualified path with `use` for `crate::ffi::c_void`.
> - Fix a typo and rephrase docs for `ForeignOwnable`.
> - Reorganize docs for `ForeignOwnable::into_foreign`.
> - Link to v1: https://lore.kernel.org/r/20250605-pointed-to-v1-1-ee1e262912cc@kernel.org
>
> ---
> Andreas Hindborg (2):
> rust: types: add FOREIGN_ALIGN to ForeignOwnable
> rust: types: require `ForeignOwnable::into_foreign` return non-null
>
> rust/kernel/alloc/kbox.rs | 41 +++++++++++++++++++++++------------------
> rust/kernel/miscdevice.rs | 10 +++++-----
> rust/kernel/pci.rs | 2 +-
> rust/kernel/platform.rs | 2 +-
> rust/kernel/sync/arc.rs | 24 +++++++++++++-----------
> rust/kernel/types.rs | 46 +++++++++++++++++++++++-----------------------
> rust/kernel/xarray.rs | 9 +++++----
> 7 files changed, 71 insertions(+), 63 deletions(-)
Reviewed-by: Alice Ryhl <aliceryhl@...gle.com>
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