linux/rust/kernel
Alexandre Courbot ea60cea07d rust: add Alignment type
Alignment operations are very common in the kernel. Since they are
always performed using a power-of-two value, enforcing this invariant
through a dedicated type leads to fewer bugs and can improve the
generated code.

Introduce the `Alignment` type, inspired by the nightly Rust type of the
same name and providing the same interface, and a new `Alignable` trait
allowing unsigned integers to be aligned up or down.

Reviewed-by: Alice Ryhl <aliceryhl@google.com>
Reviewed-by: Danilo Krummrich <dakr@kernel.org>
Signed-off-by: Alexandre Courbot <acourbot@nvidia.com>
[ Used `build_assert!`, added intra-doc link, `allow`ed
  `clippy::incompatible_msrv`, added `feature(const_option)`, capitalized
  safety comment. - Miguel ]
Signed-off-by: Miguel Ojeda <ojeda@kernel.org>
2025-09-22 23:55:41 +02:00
..
alloc rust: alloc: use kernel::{fmt,prelude::fmt!} 2025-09-16 09:26:58 +02:00
block rust: block: use kernel::{fmt,prelude::fmt!} 2025-09-16 09:26:58 +02:00
device rust: device: use kernel::{fmt,prelude::fmt!} 2025-09-16 09:26:59 +02:00
drm rust: drm: use core::ffi::CStr method names 2025-09-16 09:26:59 +02:00
fs rust: file: use kernel::{fmt,prelude::fmt!} 2025-09-16 09:26:58 +02:00
io rust: io: fix broken intra-doc links to platform::Device 2025-07-22 11:08:59 +02:00
list rust: list: remove nonexistent generic parameter in link 2025-07-20 19:29:19 +02:00
mm rust: mm: mark VmaNew as transparent 2025-08-27 22:45:41 -07:00
net rust: net: use core::ffi::CStr method names 2025-09-16 09:26:59 +02:00
sync rust: sync: use kernel::{fmt,prelude::fmt!} 2025-09-16 09:26:59 +02:00
time rust: hrtimer: Add HrTimer::expires() 2025-09-04 16:54:39 +02:00
.gitignore rust: Add warn_on macro 2025-07-23 02:05:58 +02:00
acpi.rs rust: acpi: use core::ffi::CStr method names 2025-09-16 09:26:59 +02:00
alloc.rs rust: alloc: remove allocator_test 2025-08-24 15:30:40 +02:00
auxiliary.rs rust: auxiliary: use core::ffi::CStr method names 2025-09-16 09:26:59 +02:00
bits.rs rust: bits: add support for bits/genmask macros 2025-07-19 23:18:18 +02:00
block.rs rust: block: introduce kernel::block::mq module 2024-06-14 07:45:04 -06:00
bug.rs rust: Add warn_on macro 2025-07-23 02:05:58 +02:00
build_assert.rs rust: add build_error! to the prelude 2025-01-10 00:19:09 +01:00
clk.rs Rust changes for v6.17 2025-08-03 13:49:10 -07:00
configfs.rs rust: configfs: use core::ffi::CStr method names 2025-09-16 09:26:59 +02:00
cpu.rs rust: kernel: cpu: mark CpuId::current() inline 2025-09-14 23:58:45 +02:00
cpufreq.rs rust: cpufreq: use core::ffi::CStr method names 2025-09-16 09:26:59 +02:00
cpumask.rs Rust changes for v6.17 2025-08-03 13:49:10 -07:00
cred.rs cred,rust: mark Credential methods inline 2025-03-04 17:07:49 -05:00
device.rs rust: device: use kernel::{fmt,prelude::fmt!} 2025-09-16 09:26:58 +02:00
device_id.rs Rust changes for v6.17 2025-08-03 13:49:10 -07:00
devres.rs rust: devres: fix leaking call to devm_add_action() 2025-08-14 01:52:15 +02:00
dma.rs rust: dma: Update ARef and AlwaysRefCounted imports from sync::aref 2025-08-15 22:53:05 +02:00
driver.rs driver: rust: expand documentation for driver infrastructure 2025-08-12 15:23:49 +02:00
error.rs rust: error: improve to_result documentation 2025-09-10 00:10:10 +02:00
faux.rs rust: faux: fix C header link 2025-08-13 17:40:28 +02:00
firmware.rs rust: firmware: use core::ffi::CStr method names 2025-09-16 09:26:59 +02:00
fmt.rs rust: kernel: add fmt module 2025-07-21 01:16:35 +02:00
fs.rs rust: file: add Rust abstraction for struct file 2024-09-30 13:02:28 +02:00
generated_arch_reachable_asm.rs.S rust: Add warn_on macro 2025-07-23 02:05:58 +02:00
generated_arch_static_branch_asm.rs.S rust: jump_label: skip formatting generated file 2024-11-20 13:32:42 -05:00
generated_arch_warn_asm.rs.S rust: Add warn_on macro 2025-07-23 02:05:58 +02:00
init.rs Rust changes for v6.17 2025-08-03 13:49:10 -07:00
io.rs Rust changes for v6.17 2025-08-03 13:49:10 -07:00
ioctl.rs rust: start using the #[expect(...)] attribute 2024-10-07 21:39:57 +02:00
jump_label.rs rust: jump_label: skip formatting generated file 2024-11-20 13:32:42 -05:00
kunit.rs rust: kunit: use core::ffi::CStr method names 2025-09-16 09:26:59 +02:00
lib.rs rust: add Alignment type 2025-09-22 23:55:41 +02:00
list.rs rust: list: Add an example for ListLinksSelfPtr usage 2025-09-15 01:10:23 +02:00
miscdevice.rs rust: miscdevice: use core::ffi::CStr method names 2025-09-16 09:26:59 +02:00
mm.rs mm: rust: make CONFIG_MMU ifdefs more narrow 2025-05-31 22:46:12 -07:00
net.rs
of.rs rust: of: use core::ffi::CStr method names 2025-09-16 09:26:59 +02:00
opp.rs Rust changes for v6.17 2025-08-03 13:49:10 -07:00
page.rs rust: page: optimize rust symbol generation for Page 2025-05-12 00:20:25 +02:00
pci.rs Rust changes for v6.17 2025-08-03 13:49:10 -07:00
pid_namespace.rs rust: add PidNamespace 2024-10-08 15:44:36 +02:00
platform.rs Rust changes for v6.17 2025-08-03 13:49:10 -07:00
prelude.rs rust: prelude: re-export core::mem::{align,size}_of{,_val} 2025-09-08 00:11:19 +02:00
print.rs rust: use kernel::{fmt,prelude::fmt!} 2025-07-21 01:16:35 +02:00
ptr.rs rust: add Alignment type 2025-09-22 23:55:41 +02:00
rbtree.rs rust: rbtree: simplify finding current in remove_current 2025-07-14 23:53:35 +02:00
regulator.rs rust: regulator: add a bare minimum regulator abstraction 2025-07-15 15:07:40 +01:00
revocable.rs Rust changes for v6.17 2025-08-03 13:49:10 -07:00
security.rs lsm,rust: reword "destroy" -> "release" in SecurityCtx 2025-03-04 15:44:46 -05:00
seq_file.rs rust: seq_file: use kernel::{fmt,prelude::fmt!} 2025-09-16 09:26:59 +02:00
sizes.rs rust: sizes: add constants up to SZ_2G 2025-06-23 18:12:30 +02:00
static_assert.rs rust: use absolute paths in macros referencing core and kernel 2025-05-23 00:12:14 +02:00
std_vendor.rs rust: convert raw URLs to Markdown autolinks in comments 2025-05-12 00:20:25 +02:00
str.rs rust: kernel: use core::ffi::CStr method names 2025-07-21 01:16:36 +02:00
sync.rs rust: kernel: move ARef and AlwaysRefCounted to sync::aref 2025-07-22 13:52:14 +02:00
task.rs rust: task: update ARef and AlwaysRefCounted imports from sync::aref 2025-09-08 00:11:19 +02:00
time.rs rust: time: Implement basic arithmetic operations for Delta 2025-09-04 16:56:48 +02:00
tracepoint.rs rust: add tracepoint support 2024-11-04 16:21:44 -05:00
transmute.rs rust: kernel: move FromBytes and AsBytes traits to a new transmute module 2024-10-10 00:33:42 +02:00
types.rs Rust changes for v6.17 2025-08-03 13:49:10 -07:00
uaccess.rs rust: uaccess: use newtype for user pointers 2025-07-14 23:52:45 +02:00
workqueue.rs workqueue: rust: add delayed work items 2025-07-15 22:54:52 +02:00
xarray.rs rust: types: add FOREIGN_ALIGN to ForeignOwnable 2025-07-14 23:55:24 +02:00