| From: |
| Link Mauve <linkmauve-AT-linkmauve.fr> |
| To: |
| rust-for-linux-AT-vger.kernel.org |
| Subject: |
| [RFC PATCH 0/3] Add Rust abstractions for nvmem-provider |
| Date: |
| Wed, 28 Jan 2026 19:29:19 +0100 |
| Message-ID: |
| <20260128182925.13225-1-linkmauve@linkmauve.fr> |
| Cc: |
| Link Mauve <linkmauve-AT-linkmauve.fr>, Srinivas Kandagatla <srini-AT-kernel.org>, Miguel Ojeda <ojeda-AT-kernel.org>, Boqun Feng <boqun.feng-AT-gmail.com>, Gary Guo <gary-AT-garyguo.net>, Björn Roy Baron <bjorn3_gh-AT-protonmail.com>, Benno Lossin <lossin-AT-kernel.org>, Andreas Hindborg <a.hindborg-AT-kernel.org>, Alice Ryhl <aliceryhl-AT-google.com>, Trevor Gross <tmgross-AT-umich.edu>, Danilo Krummrich <dakr-AT-kernel.org>, Daniel Almeida <daniel.almeida-AT-collabora.com>, Greg Kroah-Hartman <gregkh-AT-linuxfoundation.org>, Lyude Paul <lyude-AT-redhat.com>, Asahi Lina <lina+kernel-AT-asahilina.net>, Viresh Kumar <viresh.kumar-AT-linaro.org>, Lorenzo Stoakes <lorenzo.stoakes-AT-oracle.com>, Tamir Duberstein <tamird-AT-kernel.org>, linux-kernel-AT-vger.kernel.org |
| Archive-link: |
| Article |
Hi, this is my first foray in Rust in the kernel! I’m fairly used to
both Rust and the kernel, but not yet to both at the same time.
I wanted to try something simple before jumping to more advanced stuff
like DRM or V4L2 drivers, so I set on rewriting one of my old Wii
drivers in Rust. So far I have only tested that the nvmem abstraction
and the driver compile, but haven’t tested it on an actual Wii, hence
the RFC.
I made sure there was no unsafe anywhere in the driver, and tried to
keep it to as few places as possible in the nvmem abstraction. I still
have issues with the mutability of the NvmemProvider::Priv type, so for
now I’ve made it a simple reference but I believe this won’t work in the
long run (or even in the short run). I’ll take any idea for how to fix
that.
So, comments welcome! :)
Link Mauve (3):
nvmem: Document enum nvmem_type and its variants
rust: nvmem: Add an abstraction for nvmem providers
nvmem: Replace the Wii and Wii U OTP driver with a Rust one
drivers/nvmem/Makefile | 2 +-
drivers/nvmem/nintendo-otp.c | 122 -------------------------
drivers/nvmem/nintendo_otp.rs | 137 ++++++++++++++++++++++++++++
include/linux/nvmem-provider.h | 8 ++
rust/bindings/bindings_helper.h | 1 +
rust/kernel/lib.rs | 2 +
rust/kernel/nvmem.rs | 155 ++++++++++++++++++++++++++++++++
7 files changed, 304 insertions(+), 123 deletions(-)
delete mode 100644 drivers/nvmem/nintendo-otp.c
create mode 100644 drivers/nvmem/nintendo_otp.rs
create mode 100644 rust/kernel/nvmem.rs
--
2.52.0
