[PATCH v5 0/2] Add dma coherent allocator abstraction

[Abdiel Janulgue <abdiel.janulgue@gmail.com>]

This series adds support for a basic Rust abstraction for the dma coherent
allocator API.

Changes since v4:
- Documentation and example fixes, use Markdown formatting (Miguel Ojeda).
- Discard read()/write() helpers to remove bound on Copy and fix overhead
  (Daniel Almeida).
- Improve error-handling in the constructor block (Andreas Hindborg).
- Link to v3: https://lore.kernel.org/all/20241105104726.3111058-1-abdiel.janulgue@gmail.com/

Changes since v3:
- Reject ZST types by checking the type size in the constructor in
  addition to requiring FromBytes/AsBytes traits for the type (Alice Ryhl).

Changes since v2:
- Fixed missing header for generating the bindings.

Changes since v1:
- Fix missing info in commit log where EOVERFLOW is used.
- Restrict the dma coherent allocator to numeric types for now for valid
  behaviour (Daniel Almeida).
- Build slice dynamically.

Abdiel Janulgue (2):
  rust: error: Add EOVERFLOW
  rust: add dma coherent allocator abstraction.

 rust/bindings/bindings_helper.h |   1 +
 rust/kernel/dma.rs              | 136 ++++++++++++++++++++++++++++++++
 rust/kernel/error.rs            |   1 +
 rust/kernel/lib.rs              |   1 +
 4 files changed, 139 insertions(+)
 create mode 100644 rust/kernel/dma.rs


base-commit: 40384c840ea1944d7c5a392e8975ed088ecf0b37
-- 
2.43.0