RFL Patch & Project Registry

This is an attempt to aggregate Rust abstractions for Linux that have not yet been upstreamed, as well as some leaf drivers and some other works in progress.

Toward the bottom, there is a list of possible projects for anyone looking to pick something up.

PRs or issues are welcome for any additions or fixes!

Patches and Ongoing Projects

Usual status options are:

• merged: this patch has been merged to upstream and is usable in recent versions of the kernel, or is in a *-next branch for upstreaming.
• review: this patchset has been submitted to the mailing list and is in a nearly usable state, pending review or other blockers.
• RFC: this patchset is currently collecting feedback on the mailing list. It is likely not too far off from being upstream ready, but may be blocked on not having an in-tree usecase. (some patchsets that would otherwise be review but do not have an in-tree usecase have been downgraded to RFC even if not an RFC patch).
• testing: this patchset is generally considered good for further experimentation and may have RFL review, but does not have review by relevant maintainers.
• experimental: this patchset is a work in progress.
• abandoned: not recently maintained

Base does not take prerequisites into account, check the git history for more accurate information. A lot of experimental patchsets are against the rust branch, which has a lot of abstractions that are not yet in tree.

For your development, it is best to target rust-next, the *-next branch of the relevant subsystem, or the latest tag at https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git.

Can't find something? Drop by on Zulip, we may be able to point you in the right direction: https://rust-for-linux.zulipchat.com/.

Note that things change frequently! This is a best effort list, PRs or issues are welcome if you notice something out of sync.

Target Area	Status	Author	Git Link	Mailing List Link	Base
AArch64 support	merged	Jamie C.		https://lore.kernel.org/rust-for-linux/20231020155056.3495121-1-Jamie.Cunliffe@arm.com/	merged
Loongarch support	merged	Rui W.		https://lore.kernel.org/rust-for-linux/20240108032117.215171-1-wangrui@loongson.cn/	merged
RISC-V support	review	Conor D.		https://lore.kernel.org/rust-for-linux/20240409-unsaddle-skittle-c93eb77732bb@spud/T/#mcc65b9542b54f1813a490fe374cf2333adcc4ec3	merged
x86_64 support	merged				merged
condvar	merged		https://elixir.bootlin.com/linux/v6.4/source/rust/kernel/sync/condvar.rs		merged
cred	review	Alice R.		https://lore.kernel.org/rust-for-linux/20240202-alice-file-v4-4-fc9c2080663b@google.com/
crypto	RFC	Tomo F.		https://lore.kernel.org/rust-for-linux/20230615142311.4055228-1-fujita.tomonori@gmail.com/	rust-6.5
debugfs	testing	Adam BK.	https://github.com/Rust-for-Linux/linux/pull/885		rust
debugfs	experimental	Fabien P.	https://github.com/Rust-for-Linux/linux/pull/1041		rust-next
delay	testing	Tomo F.	https://github.com/Rust-for-Linux/linux/pull/920		rust
device	experimental	Gary G.	https://github.com/nbdd0121/linux/tree/device
debugfs	experimental	Fabien P.	https://github.com/Fabo/linux/tree/fparent/rust-debugfs
driver	experimental	Martin RR., Wedson AF.	https://github.com/YakoYakoYokuYoku/linux/commit/36d63c70f80c1f4486423d75dcc5f4b890b10dd4
dma	testing	Tomo F.	https://github.com/Rust-for-Linux/linux/pull/901		rust
drm	RFC	Lina		https://lore.kernel.org/rust-for-linux/20230307-rust-drm-v1-0-917ff5bc80a8@asahilina.net/	6.3-rc1
drm-asahi (apple Si)	RFC	Lina, Alyssa R.	https://github.com/AsahiLinux/linux/tree/asahi/drivers/gpu/drm/asahi	https://lore.kernel.org/rust-for-linux/20230307-rust-drm-v1-0-917ff5bc80a8@asahilina.net/ (in links)	6.6
drm-nova (nouveau rewrite)	experimental	Danilo K., Dave A.	https://gitlab.freedesktop.org/dakr/nova	https://lore.kernel.org/rust-for-linux/Zfsj0_tb-0-tNrJy@cassiopeiae/
drm-panel, drm-dsi	experimental	Fabien P.	https://github.com/Fabo/linux/tree/fparent/rust-truly-r63350		rust-dev
ethernet	testing	Amélie	https://github.com/Rust-for-Linux/linux/pull/1014		rust
file, misc	RFC	Alice R., Wedson AF.		https://lore.kernel.org/rust-for-linux/20230720152820.3566078-1-aliceryhl@google.com/	rust-next
file, misc	review	Alice, Wedson AF.		https://lore.kernel.org/rust-for-linux/20240118-alice-file-v3-0-9694b6f9580c@google.com/	rust-6.8
fwnode	testing	Vinay V.	https://github.com/Rust-for-Linux/linux/pull/925		rust
gpiod/consumer	experimental	Fabien P.	https://github.com/Fabo/linux/commit/bb525ee7ae4fc0b352442a4853f41d213edd5d30		rust-dev
gfp/highmem/page	review	Alice R.		https://lore.kernel.org/rust-for-linux/20240418-alice-mm-v6-0-cb8f3e5d688f@google.com/
hid	experimental	Rahul R.	https://github.com/Binary-Eater/linux/tree/rust-hid		rust-next
i2c	testing	Finn B.	https://github.com/Rust-for-Linux/linux/pull/946		rust
i2c	experimental	Fabien P.	https://github.com/Fabo/linux/tree/fparent/rust-i2c		rust-next
io_pgtable	testing	Lina	https://github.com/Rust-for-Linux/linux/pull/952/commits/f476b2b052165a40eed0a8fcb86b56f794ee62d8		rust-next
io_resource	testing	Maciej F.	https://github.com/Rust-for-Linux/linux/pull/682		rust
ioctrl	merged		https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/tree/rust/kernel/ioctl.rs		merged
jiffies	testing	Maria C.	https://github.com/Rust-for-Linux/linux/pull/982		rust
(rv)kms	rfc	Lyude Paul		https://lore.kernel.org/rust-for-linux/20240322221305.1403600-1-lyude@redhat.com/
kuid	review	Alice R.		https://lore.kernel.org/rust-for-linux/20240202-alice-file-v4-7-fc9c2080663b@google.com/
mm		Alice R., Wedson AF.	https://github.com/Darksonn/linux/commit/7ba95d4fc5a8442ef5eb428b64109116717f7e47
napi	testing	Amélie	https://github.com/Rust-for-Linux/linux/pull/1018		rust
net_device	RFC	Tomo F.		https://lore.kernel.org/netdev/20230613045326.3938283-1-fujita.tomonori@gmail.com/	rust-6.5
null block	RFC	Andreas H.		https://lore.kernel.org/rust-for-linux/20230503090708.2524310-1-nmi@metaspace.dk/	rust-6.4
of	experimental	AsahiLinux	https://github.com/AsahiLinux/linux/blob/gpu/rust-for-later/rust/kernel/of.rs
pci	testing	Andreas H.	https://github.com/Rust-for-Linux/linux/tree/rust-pci
phy	merged	Tomo F.	https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/tree/rust/kernel/net/phy.rs	https://lore.kernel.org/rust-for-linux/20231026001050.1720612-1-fujita.tomonori@gmail.com/	merged
platform	testing	Rust GH	https://github.com/Rust-for-Linux/linux/blob/rust/rust/kernel/platform.rs		rust
pm_runtime	testing	Maciej F.	https://github.com/Rust-for-Linux/linux/pull/700		rust
poll	review	Alice R.		https://lore.kernel.org/rust-for-linux/20240202-alice-file-v4-9-fc9c2080663b@google.com/
ramfs	abandoned	Fox C.	https://github.com/Rust-for-Linux/linux/pull/409		rust
rbtree	review	Alice R.		https://lore.kernel.org/rust-for-linux/20240205-b4-rbtree-v1-0-995e3eee38c0@google.com/
regmap	experimental	Fabien P.	https://github.com/Fabo/linux/tree/fparent/rust-regmap-dev
regulator/consumer	experimental	Fabien P.	https://github.com/Rust-for-Linux/linux/pull/1040		rust-dev
regulator/driver	experimental	Fabien P.	https://github.com/Fabo/linux/commit/95360c6903e3fe948650a30268bbc9e6fd4b7af7		rust-dev
reset	testing	Nikos M.	https://github.com/Rust-for-Linux/linux/pull/933		rust
rtkit (apple)	testing	Lina	https://github.com/Rust-for-Linux/linux/pull/952/commits/f7708d02efab0d96e56f78d7e6dfa56adc948ef4		rust-next
scatterlist	RFC	Fox C.		https://lore.kernel.org/rust-for-linux/20230610104909.3202958-1-changxian.cqs@antgroup.com/
schedule	testing	Boqun F.	https://github.com/Rust-for-Linux/linux/pull/861		rust
secctx	review	Alice R.		https://lore.kernel.org/rust-for-linux/20240202-alice-file-v4-5-fc9c2080663b@google.com/
sk_buf	RFC	Tomo F.		https://lore.kernel.org/netdev/20230613045326.3938283-1-fujita.tomonori@gmail.com/	rust-6.5
socket	RFC	Michele DR.		https://lore.kernel.org/rust-for-linux/20230814092302.1903203-1-dallerivemichele@gmail.com/	rust-next
spi	testing	Esteban B.	https://github.com/Rust-for-Linux/linux/pull/264		rust-next
sysfs	testing	Martin RR.	https://github.com/YakoYakoYokuYoku/linux/commits/sysfs-support
tarfs	testing	Wedson AF.	https://github.com/Rust-for-Linux/linux/pull/1037		rust-next
task	merged		https://elixir.bootlin.com/linux/v6.4/source/rust/kernel/task.rs		merged
timer	testing	Maria C.	https://github.com/Rust-for-Linux/linux/pull/982		rust
hrtimer	review	Andreas H.		https://lore.kernel.org/rust-for-linux/20240425094634.262674-1-nmi@metaspace.dk/
thread	testing	Boqun F.	https://github.com/Rust-for-Linux/linux/pull/109		rust
usb	testing	Martin RR.	https://github.com/Rust-for-Linux/linux/pull/884		rust
user-ptr/uaccess	review	Alice R.		https://lore.kernel.org/rust-for-linux/20240418-alice-mm-v6-0-cb8f3e5d688f@google.com/
virtio	testing	Richard L.	https://github.com/Rust-for-Linux/linux/pull/886		rust
workqueue	merged	Alice R.	https://elixir.bootlin.com/linux/v6.7/source/rust/kernel/workqueue.rs	https://lore.kernel.org/rust-for-linux/20230828104807.1581592-1-aliceryhl@google.com/	merged
v4l2	review	Daniel A.		https://lore.kernel.org/rust-for-linux/20230406215615.122099-1-daniel.almeida@collabora.com/	rust
vfs	RFC	Wedson AF.		https://lore.kernel.org/rust-for-linux/20231018122518.128049-1-wedsonaf@gmail.com/#t
vfs, ext2	experimental	Wedson AF.	https://github.com/wedsonaf/linux/commits/ext2fs/		6.7-rc5
vfs, ext2	experimental	Tomo F.	https://github.com/fujita/linux/tree/ext2-rust/fs/ext2rust		6.8-rc1
vfs, puzzlefs	RFC	Ariel M.		https://lore.kernel.org/rust-for-linux/20230726164535.230515-1-amiculas@cisco.com/	puzzlefs_dependencies
xarray	RFC	Maíra C., Lina		https://lore.kernel.org/rust-for-linux/ZacW_e1mnNi6hT7M@boqun-archlinux/T/#m7231cc4d238de3930f1092dd1ab123c4ffe2315a	rust-next
apple misc items	testing	Lina	https://github.com/Rust-for-Linux/linux/pull/964		rust-next
C+Rust kbuild system	experimental	Miguel O.	not yet published

If what you need still isn't listed here, take a look at these trees:

• https://github.com/AsahiLinux/linux uses Rust pretty heavily in production
• https://github.com/Rust-for-Linux/linux/tree/rust is the experimental tree used before merging into mainline. A lot of experimental bindings are available there.

Project Idea Board

Below is a small list of larger projects that may be wanted in-tree. Before starting any work, drop by on Zulip or at the mailing list to see if anybody is working on it already.

Area	Task	Discussion	Notes
iio	any sensors	https://lore.kernel.org/rust-for-linux/2023061940-kindling-lagoon-3054@gregkh/	IIO gets a ton of new drivers. There are lots of small ICs that fit this category and do not yet have C drivers.
phy	Microchip VSC825{4,6,7,8} phy driver		Open a Zulip topic and tag Shashwat and Trevor if interested (or email the list)
phy	other phys		Any phys that are not yet supported by the kernel may be willing to accept Rust drivers
tc	write tc actions	https://lore.kernel.org/rust-for-linux/CALNs47v8x8RsV=EOKQnsL3RFycbY9asrq9bBV5z-sLjYYy+AVw@mail.gmail.com/	Traffic control expressed some interest in using Rust and suggested actions as a place to start (see the lore link)

Aside from these larger projects, there are other ways to get involved both in the kernel and externally:

• Work on issues listed in the GitHub tracker: https://github.com/Rust-for-Linux/linux/issues.
• Provide reviews on the mailing list.
• Ask maintainers of the above patches if they are looking for help.
• Build and test mailing list patchsets.
• Support development of ecosystem tools (rustc, rustdoc, bindgen, etc.). RFL tracks some wanted features in GitHub meta issues: https://github.com/Rust-for-Linux/linux/issues?q=is%3Aissue+is%3Aopen+wanted+features+label%3Ameta
• Help contribute to kernel-adjacent tools like klint, pinned-init, or coccinelle for Rust, all linked here: https://rust-for-linux.com/contributing
• Help contribute to Rust-GCC tooling, rustc_codegen_gcc or gccrs.
• Reach out to hardware manufacturers and see if they are interested in new drivers.
• Help get Rust support working and tested on more platforms.
• Write about RFL. Tutorials and good documentation help lower the barrier to entry.

See https://rust-for-linux.com/contributing for some more complete information and other ideas.