linux/rust/kernel
Jubilee Young 0903b9e2a4 rust: alloc: eschew Box<MaybeUninit<T>>::write
Upstream Rust's libs-api team has consensus for stabilizing some of
`feature(new_uninit)`, but not for `Box<MaybeUninit<T>>::write`. Instead,
we can use `MaybeUninit<T>::write`, so Rust for Linux can drop the
feature after stabilization. That will happen after merging, as the FCP
has completed [1].

This is required before stabilization because remaining-unstable API
will be divided into new features. This code doesn't know about those
yet. It can't: they haven't landed, as the relevant PR is blocked on
rustc's CI testing Rust-for-Linux without this patch.

[ The PR has landed [2] and will be released in Rust 1.82.0 (expected on
  2024-10-17), so we could conditionally enable the new unstable feature
  (`box_uninit_write` [3]) instead, but just for a single `unsafe` block
  it is probably not worth it. For the time being, I added it to the
  "nice to have" section of our unstable features list. - Miguel ]

Link: https://github.com/rust-lang/rust/issues/63291#issuecomment-2183022955 [1]
Link: https://github.com/rust-lang/rust/pull/129416 [2]
Link: https://github.com/rust-lang/rust/issues/129397 [3]
Signed-off-by: Jubilee Young <workingjubilee@gmail.com>
Reviewed-by: Alice Ryhl <aliceryhl@google.com>
Reviewed-by: Trevor Gross <tmgross@umich.edu>
[ Reworded slightly. - Miguel ]
Signed-off-by: Miguel Ojeda <ojeda@kernel.org>
2024-08-27 00:07:05 +02:00
..
alloc rust: alloc: eschew Box<MaybeUninit<T>>::write 2024-08-27 00:07:05 +02:00
block rust: block: fix wrong usage of lockdep API 2024-08-21 13:28:13 +02:00
init rust: kernel: fix typos in code comments 2024-08-21 13:29:36 +02:00
net rust: kernel: fix typos in code comments 2024-08-21 13:29:36 +02:00
sync rust: kernel: remove redundant imports 2024-05-05 19:22:25 +02:00
alloc.rs rust: add abstraction for struct page 2024-07-08 23:44:01 +02:00
block.rs rust: block: introduce kernel::block::mq module 2024-06-14 07:45:04 -06:00
build_assert.rs
device.rs device: rust: improve safety comments 2024-06-20 16:14:58 +02:00
error.rs rust: block: introduce kernel::block::mq module 2024-06-14 07:45:04 -06:00
firmware.rs rust: firmware: fix invalid rustdoc link 2024-07-31 13:24:29 +02:00
init.rs rust: init: simplify from map_err to inspect_err 2024-07-10 10:28:51 +02:00
ioctl.rs rust: kernel: mark code fragments in docs with backticks 2024-02-18 21:22:27 +01:00
kunit.rs rust: support srctree-relative links 2023-12-21 20:54:17 +01:00
lib.rs Rust changes for v6.11 2024-07-27 13:44:54 -07:00
net.rs rust: core abstractions for network PHY drivers 2023-12-15 09:35:50 +00:00
page.rs rust: add abstraction for struct page 2024-07-08 23:44:01 +02:00
prelude.rs rust: alloc: introduce the BoxExt trait 2024-04-16 22:47:20 +02:00
print.rs rust: kernel: remove redundant imports 2024-05-05 19:22:25 +02:00
static_assert.rs
std_vendor.rs rust: update dbg!() to format column number 2024-05-05 18:09:04 +02:00
str.rs rust: kernel: remove redundant imports 2024-05-05 19:22:25 +02:00
sync.rs rust: sync: implement Default for LockClassKey 2024-05-05 19:22:25 +02:00
task.rs rust: kernel: remove redundant imports 2024-05-05 19:22:25 +02:00
time.rs rust: time: doc: Add missing C header links 2024-05-01 00:04:47 +02:00
types.rs rust: uaccess: add typed accessors for userspace pointers 2024-07-08 23:44:01 +02:00
uaccess.rs rust: uaccess: add typed accessors for userspace pointers 2024-07-08 23:44:01 +02:00
workqueue.rs rust: kernel: make impl_has_work compatible with more generics 2024-07-08 22:39:39 +02:00