FUJITA Tomonori 67b598db7e rust: time: make ClockSource unsafe trait ...

Mark the ClockSource trait as unsafe and document its safety
requirements. Specifically, implementers must guarantee that their
`ktime_get()` implementation returns a value in the inclusive range
[0, KTIME_MAX].

Update all existing implementations to use `unsafe impl` with
corresponding safety comments.

Note that there could be potential users of a customized clock source [1]
so we don't seal the trait.

Link: https://lore.kernel.org/rust-for-linux/Z9xb1r1x5tOzAIZT@boqun-archlinux/ [1]
Suggested-by: Boqun Feng <boqun.feng@gmail.com>
Signed-off-by: FUJITA Tomonori <fujita.tomonori@gmail.com>
Reviewed-by: Alice Ryhl <aliceryhl@google.com>
Link: https://msgid.link/20250630131011.405219-1-fujita.tomonori@gmail.com
[ Change range expressions in docs. - Andreas ]
Signed-off-by: Andreas Hindborg <a.hindborg@kernel.org>

2026-03-23 08:29:48 +01:00

..

alloc

rust: alloc: use kernel::fmt

2025-10-20 04:04:23 +02:00

block

rust: block: mq: use pin_init::zeroed() for tag_set

2026-01-21 07:37:15 -07:00

debugfs

Merge tag 'driver-core-7.0-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/driver-core/driver-core

2026-02-11 17:43:59 -08:00

device

rust: device: replace kernel::c_str! with C-Strings

2025-12-22 17:30:24 +01:00

drm

rust/drm: Fix Registration::{new,new_foreign_owned}() docs

2026-01-23 14:18:07 -05:00

fs

rust: fs: add file::Offset type alias

2025-11-05 00:05:38 +01:00

io

Merge tag 'v6.19-rc7' into driver-core-next

2026-01-26 13:23:52 +01:00

iommu

rust: iommu: fix srctree link warning

2026-01-22 09:19:30 +01:00

irq

Merge tag 'rust-fixes-7.0' of git://git.kernel.org/pub/scm/linux/kernel/git/ojeda/linux

2026-02-22 08:43:31 -08:00

list

Merge tag 'rust-fixes-7.0' of git://git.kernel.org/pub/scm/linux/kernel/git/ojeda/linux

2026-02-22 08:43:31 -08:00

mm

mm: introduce VMA flags bitmap type

2025-11-29 10:41:09 -08:00

net

rust: net: replace kernel::c_str! with C-Strings

2026-01-05 16:32:39 -08:00

num

rust: num: bounded: clean __new documentation and comments

2026-01-26 02:53:16 +01:00

pci

rust: io: macro_export io_define_read!() and io_define_write!()

2026-02-23 00:54:02 +01:00

ptr

rust: ptr: add projection infrastructure

2026-03-07 23:06:17 +01:00

str

rust: str: add radix prefixed integer parsing functions

2025-11-03 14:40:45 +01:00

sync

Merge tag 'char-misc-7.0-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc

2026-02-17 09:11:04 -08:00

time

rust: add udelay() function

2025-11-04 13:25:29 +01:00

.gitignore

…

acpi.rs

rust: acpi: replace core::mem::zeroed with pin_init::zeroed

2025-10-27 20:27:05 +01:00

alloc.rs

Merge tag 'mm-stable-2025-10-01-19-00' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm

2025-10-02 18:18:33 -07:00

auxiliary.rs

Merge tag 'v6.19-rc7' into driver-core-next

2026-01-26 13:23:52 +01:00

bitmap.rs

rust: bitmap: add BitmapVec::new_inline()

2025-11-26 11:25:35 -05:00

bits.rs

rust: bits: always inline functions using build_assert with arguments

2026-01-18 20:40:11 +01:00

block.rs

…

bug.rs

rust: bug: Support DEBUG_BUGVERBOSE_DETAILED option

2026-01-30 05:18:17 +01:00

build_assert.rs

rust: build_assert: add instructions for use with function arguments

2026-01-19 01:13:22 +01:00

clk.rs

rust: clk: replace kernel::c_str! with C-Strings

2026-01-30 01:08:24 +01:00

configfs.rs

rust: configfs: replace kernel::c_str! with C-Strings

2026-01-15 09:26:49 +01:00

cpu.rs

rust: kernel: cpu: mark CpuId::current() inline

2025-09-14 23:58:45 +02:00

cpufreq.rs

rust: cpufreq: suppress clippy::double_parens in Policy doctest

2026-03-12 11:01:23 +01:00

cpumask.rs

rust: cpumask: rename methods of Cpumask for clarity and consistency

2026-01-27 11:21:23 +05:30

cred.rs

Merge tag 'char-misc-6.18-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc

2025-10-04 16:26:32 -07:00

debugfs.rs

rust: debugfs: Use kernel Atomic type in docs example

2026-01-19 15:02:46 +01:00

device_id.rs

rust: device_id: replace incorrect word in safety documentation

2025-12-29 14:09:18 +01:00

device.rs

Merge tag 'v6.19-rc7' into driver-core-next

2026-01-26 13:23:52 +01:00

devres.rs

rust: devres: fix race condition due to nesting

2026-02-07 01:03:49 +01:00

dma.rs

rust: dma: use pointer projection infra for dma_{read,write} macro

2026-03-07 23:06:20 +01:00

driver.rs

Merge tag 'v6.19-rc7' into driver-core-next

2026-01-26 13:23:52 +01:00

error.rs

rust: replace CStr with core::ffi::CStr

2025-10-22 07:47:27 +02:00

faux.rs

rust: faux: use "kernel vertical" style for imports

2026-01-07 19:56:00 +01:00

firmware.rs

rust: firmware: replace kernel::c_str! with C-Strings

2025-11-17 00:53:47 +01:00

fmt.rs

rust: fmt: Fix grammar in Adapter description

2026-01-04 23:51:35 +01:00

fs.rs

…

generated_arch_reachable_asm.rs.S

…

generated_arch_static_branch_asm.rs.S

…

generated_arch_warn_asm.rs.S

…

i2c.rs

Merge tag 'rust-6.20-7.0' of git://git.kernel.org/pub/scm/linux/kernel/git/ojeda/linux

2026-02-10 11:53:01 -08:00

id_pool.rs

rust: id_pool: do not immediately acquire new ids

2025-12-02 14:17:09 -05:00

impl_flags.rs

rust: add impl_flags! macro for defining common bitflag operations

2026-02-02 08:09:11 +01:00

init.rs

rust: init: use #[default_error(err)] for the initializer macros

2026-01-17 10:51:42 +01:00

io.rs

rust: io: macro_export io_define_read!() and io_define_write!()

2026-02-23 00:54:02 +01:00

ioctl.rs

…

iov.rs

…

irq.rs

…

jump_label.rs

…

kunit.rs

rust: kunit: fix warning when !CONFIG_PRINTK

2026-03-02 10:01:15 -07:00

lib.rs

rust: ptr: add projection infrastructure

2026-03-07 23:06:17 +01:00

list.rs

rust: list: add warning to List::remove docs about mem::take

2025-11-26 13:26:59 +01:00

maple_tree.rs

rust: maple_tree: rcu_read_lock() in destructor to silence lockdep

2025-12-23 11:23:15 -08:00

miscdevice.rs

rust: redefine bindings::compat_ptr_ioctl in Rust

2026-01-16 14:54:11 +01:00

mm.rs

rust: mm: update ARef and AlwaysRefCounted imports from sync::aref

2025-09-13 16:55:15 -07:00

module_param.rs

Merge tag 'modules-6.19-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/modules/linux

2025-12-06 08:27:07 -08:00

net.rs

…

num.rs

rust: num: add Bounded integer wrapping type

2025-11-19 00:22:24 +01:00

of.rs

rust: of: use core::ffi::CStr method names

2025-09-16 09:26:59 +02:00

opp.rs

Merge tag 'rust-6.19' of git://git.kernel.org/pub/scm/linux/kernel/git/ojeda/linux

2025-12-03 14:16:49 -08:00

page.rs

rust: Return Option from page_align and ensure no usize overflow

2025-12-29 15:32:53 +01:00

pci.rs

rust: pci: re-export ConfigSpace

2026-02-01 22:18:24 +01:00

pid_namespace.rs

…

platform.rs

Merge tag 'v6.19-rc7' into driver-core-next

2026-01-26 13:23:52 +01:00

prelude.rs

Merge tag 'drm-next-2025-12-03' of https://gitlab.freedesktop.org/drm/kernel

2025-12-04 08:53:30 -08:00

print.rs

rust: print: Add pr_*_once macros

2026-01-30 05:47:05 +01:00

processor.rs

…

ptr.rs

rust: ptr: add projection infrastructure

2026-03-07 23:06:17 +01:00

pwm.rs

rust: pwm: Simplify to_result call sites and unsafe blocks

2026-01-20 18:49:58 +01:00

rbtree.rs

Merge tag 'rust-6.20-7.0' of git://git.kernel.org/pub/scm/linux/kernel/git/ojeda/linux

2026-02-10 11:53:01 -08:00

regulator.rs

rust: regulator: replace kernel::c_str! with C-Strings

2025-12-22 14:52:12 +00:00

revocable.rs

…

safety.rs

rust: safety: introduce unsafe_precondition_assert! macro

2026-02-02 08:10:48 +01:00

scatterlist.rs

rust: scatterlist: Update ARef imports to use sync::aref

2025-12-18 17:25:45 +01:00

security.rs

rust_binder: add Rust Binder driver

2025-09-19 09:40:46 +02:00

seq_file.rs

rust: seq_file: replace kernel::c_str! with C-Strings

2026-01-29 15:32:40 +01:00

sizes.rs

…

slice.rs

rust: slice: fix broken intra-doc links

2025-11-20 10:13:35 +00:00

soc.rs

rust: Add soc_device support

2025-12-28 12:43:56 +01:00

static_assert.rs

…

std_vendor.rs

…

str.rs

rust: str: make NullTerminatedFormatter public

2026-03-04 02:03:31 +01:00

sync.rs

rust: sync: Replace kernel::c_str! with C-Strings

2026-01-28 09:25:44 +01:00

task.rs

rust: task: restrict Task::group_leader() to current

2026-01-26 19:07:13 -08:00

time.rs

rust: time: make ClockSource unsafe trait

2026-03-23 08:29:48 +01:00

tracepoint.rs

…

transmute.rs

rust: transmute: implement FromBytes and AsBytes for inhabited ZSTs

2026-01-26 03:16:31 +01:00

types.rs

rust: allow clippy::disallowed_names for doctests

2025-11-17 22:53:27 +01:00

uaccess.rs

rust: uaccess: add UserSliceWriter::write_slice_file()

2025-11-05 00:35:37 +01:00

usb.rs

Merge tag 'usb-7.0-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb

2026-02-17 09:36:43 -08:00

workqueue.rs

…

xarray.rs

…