linux-kernel - [GIT PULL] Rust ALLOC & DMA for v6.17

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Message-Id: <DBCO0KQERIT5.GS89BZ9LY4TM@kernel.org>
Date: Tue, 15 Jul 2025 15:32:44 +0200
From: "Danilo Krummrich" <dakr@...nel.org>
To: "Miguel Ojeda" <ojeda@...nel.org>
Cc: "Lorenzo Stoakes" <lorenzo.stoakes@...cle.com>, "Vlastimil Babka"
 <vbabka@...e.cz>, "Liam R. Howlett" <Liam.Howlett@...cle.com>, "Uladzislau
 Rezki" <urezki@...il.com>, "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>,
 <rust-for-linux@...r.kernel.org>, <linux-kernel@...r.kernel.org>
Subject: [GIT PULL] Rust ALLOC & DMA for v6.17

Hi Miguel,

Please pull the following ALLOC & DMA changes.

All commits have been in linux-next for a couple of weeks. I did a test merge
without any conflicts.

- Danilo

The following changes since commit 19272b37aa4f83ca52bdf9c16d5d81bdd1354494:

  Linux 6.16-rc1 (2025-06-08 13:44:43 -0700)

are available in the Git repository at:

  https://github.com/Rust-for-Linux/linux.git tags/alloc-next-v6.17-2025-07-15

for you to fetch changes up to d49ac7744f578bcc8708a845cce24d3b91f86260:

  MAINTAINERS: add mm folks as reviewers to rust alloc (2025-07-09 16:01:17 +0200)

----------------------------------------------------------------
Alloc & DMA changes for v6.17

Box:
  - Implement Borrow / BorrowMut for Box<T, A>.

Vec:
  - Implement Default for Vec<T, A>.

  - Implement Borrow / BorrowMut for Vec<T, A>.

DMA:
  - Clarify wording and be consistent in 'coherent' nomenclature.

  - Convert the read!() / write!() macros to return a Result.

  - Add as_slice() / write() methods in CoherentAllocation.

  - Fix doc-comment of dma_handle().

  - Expose count() and size() in CoherentAllocation and add the
    corresponding type invariants.

  - Implement CoherentAllocation::dma_handle_with_offset().

  - Require mutable reference for as_slice_mut() and write().

- Add Vlastimil Babka, Liam R. Howlett, Uladzislau Rezki and Lorenzo Stoakes
  as reviewers (thanks everyone).

----------------------------------------------------------------
Abdiel Janulgue (3):
      rust: dma: clarify wording and be consistent in `coherent` nomenclature
      rust: dma: convert the read/write macros to return Result
      rust: dma: add as_slice/write functions for CoherentAllocation

Alexandre Courbot (5):
      rust: alloc: implement `Borrow` and `BorrowMut` for `Vec`
      rust: alloc: implement `Borrow` and `BorrowMut` for `KBox`
      rust: dma: fix doc-comment of dma_handle()
      rust: dma: expose the count and size of CoherentAllocation
      rust: dma: add dma_handle_with_offset method to CoherentAllocation

Alice Ryhl (1):
      rust: vec: impl Default for Vec with any allocator

Danilo Krummrich (2):
      Merge tag 'topic/dma-features-2025-06-23' into alloc-next
      rust: dma: require mutable reference for as_slice_mut() and write()

Lorenzo Stoakes (1):
      MAINTAINERS: add mm folks as reviewers to rust alloc

 MAINTAINERS               |   4 +++
 rust/kernel/alloc/kbox.rs |  57 +++++++++++++++++++++++++++++++++++++
 rust/kernel/alloc/kvec.rs |  55 ++++++++++++++++++++++++++++++++++-
 rust/kernel/dma.rs        | 199 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++----------------------
 samples/rust/rust_dma.rs  |  28 +++++++++---------
 5 files changed, 295 insertions(+), 48 deletions(-)