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(-)

Merged (yesterday) into rust-next -- thanks!

And, indeed, thanks to the MM folks.

(I see you needed to merged the DMA ones into Nova too.)

Cheers,
Miguel