linux-kernel - [PATCH v3 0/3] Rust scatterlist abstractions

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Date:   Sat, 10 Jun 2023 18:49:06 +0800
From:   "Qingsong Chen" <changxian.cqs@...group.com>
To:     linux-kernel@...r.kernel.org
Cc:     "田洪亮" <tate.thl@...group.com>,
        "Qingsong Chen" <changxian.cqs@...group.com>,
        "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>,
        <rust-for-linux@...r.kernel.org>
Subject: [PATCH v3 0/3] Rust scatterlist abstractions

Hi All!

This is a version of scatterlist abstractions for Rust drivers.

Scatterlist is used for efficient management of memory buffers, which is
essential for many kernel-level operations such as Direct Memory Access
(DMA) transfers and crypto APIs.

This patch should be a good start to introduce the crypto APIs for Rust
drivers and to develop cipher algorithms in Rust later.

Changelog:
----------
v2 -> v3:
- Use `addr_of!` to avoid creating a reference to uninit memory.
- Mark `ScatterList::as_ref` and `ScatterList::as_mut` as unsafe.
- Revise some typos and check with `scripts/checkpatch.pl --codespell`.
- Add `# Errors` doc comment to some methods of `SgTable`.

v1 -> v2:
- Split the old patch into smaller parts.
- Remove the selftest module, and place those use cases in the doc.
- Repair some invalid hyperlinks in the doc.
- Put some `cfgs` inside functions to avoid boilerplate.
====================

Qingsong Chen (3):
  rust: kernel: add ScatterList abstraction
  rust: kernel: implement iterators for ScatterList
  rust: kernel: add SgTable abstraction

 rust/bindings/bindings_helper.h |   1 +
 rust/helpers.c                  |  14 +
 rust/kernel/lib.rs              |   1 +
 rust/kernel/scatterlist.rs      | 549 ++++++++++++++++++++++++++++++++
 4 files changed, 565 insertions(+)
 create mode 100644 rust/kernel/scatterlist.rs

-- 
2.40.1