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linux/rust/kernel
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FUJITA Tomonori 880c43b185 rust: time: fix as_micros_ceil() to round correctly for negative Delta 
The ceiling-division idiom `(n + d - 1) / d` only produces the
correct result when `n` is non-negative.

For example, if n = -1000 (exactly -1us), the old code computed (-1000
+ 999) / 1000 == 0 instead of -1.

For negative n, truncating division already rounds towards positive
infinity, so no bias is needed in that case.

Fixes: fae0cdc123 ("rust: time: Introduce Delta type")
Signed-off-by: FUJITA Tomonori <fujita.tomonori@gmail.com>
Acked-by: Andreas Hindborg <a.hindborg@kernel.org>
Cc: stable@vger.kernel.org
Link: https://patch.msgid.link/20260713225235.3243480-1-tomo@flapping.org
Signed-off-by: Miguel Ojeda <ojeda@kernel.org>
2026-07-18 19:07:35 +02:00
..
alloc Driver core changes for 7.2-rc1 2026-06-15 12:41:17 +05:30
block rust: block: fix GenDisk cleanup paths 2026-05-31 19:45:06 -06:00
debugfs Driver core changes for 7.0-rc1 2026-02-11 17:43:59 -08:00
device
drm rust/drm/gem: Use DeviceContext with GEM objects 2026-06-02 22:51:16 +02:00
fs
gpu rust: gpu: Add GPU buddy allocator bindings 2026-03-23 21:41:47 +01:00
interop rust: interop: Add list module for C linked list interface 2026-03-23 20:29:28 +01:00
io Driver core changes for 7.2-rc1 2026-06-15 12:41:17 +05:30
iommu rust: iommu: fix srctree link warning 2026-01-22 09:19:30 +01:00
irq rust: irq: move 'static bounds to traits 2026-03-03 20:33:26 +01:00
list Locking updates for v7.1: 2026-04-14 12:36:25 -07:00
mm mm: rename zap_page_range_single() to zap_vma_range() 2026-04-05 13:53:15 -07:00
net rust: make build_assert module the home of related macros 2026-06-10 09:07:13 +02:00
num rust: make build_assert module the home of related macros 2026-06-10 09:07:13 +02:00
pci rust: pci: make Bar lifetime-parameterized 2026-05-27 16:24:23 +02:00
ptr rust: ptr: remove implicit index projection syntax 2026-06-05 10:16:47 +02:00
str
sync Locking updates for v7.2: 2026-06-15 14:21:14 +05:30
time hrtimer: add usage examples to documentation 2026-03-23 08:31:00 +01:00
types rust: types: add ForLt trait for higher-ranked lifetime support 2026-05-27 16:24:59 +02:00
.gitignore
acpi.rs
alloc.rs rust: alloc: cleanup imports and use "kernel vertical" style 2026-05-20 17:34:17 +02:00
auxiliary.rs rust: auxiliary: generalize Registration over ForLt 2026-05-27 16:27:28 +02:00
bitfield.rs rust: bitfield: mark Debug impl as #[inline] 2026-06-17 01:32:56 +02:00
bitmap.rs rust: tests: add Kconfig for KUnit test 2026-06-08 02:30:33 +02:00
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: make build_assert module the home of related macros 2026-06-10 09:07:13 +02:00
clk.rs rust: clk: implement Send and Sync 2026-04-03 11:57:35 +02:00
configfs.rs rust: configfs: replace kernel::c_str! with C-Strings 2026-01-15 09:26:49 +01:00
cpu.rs
cpufreq.rs Driver core changes for 7.2-rc1 2026-06-15 12:41:17 +05:30
cpumask.rs rust: cpumask: rename methods of Cpumask for clarity and consistency 2026-01-27 11:21:23 +05:30
cred.rs
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 rust: device: avoid trailing ; in printing macros 2026-07-16 23:40:54 +02:00
devres.rs rust: devres: add 'static bound to Devres<T> 2026-05-29 01:06:10 +02:00
dma.rs Driver core changes for 7.2-rc1 2026-06-15 12:41:17 +05:30
driver.rs Merge patch series "rust: device: Higher-Ranked Lifetime Types for device drivers" 2026-05-29 00:38:54 +02:00
error.rs rust: error: replace match + panic in const context with const expect 2026-05-28 11:08:27 +02:00
faux.rs rust: faux: use "kernel vertical" style for imports 2026-01-07 19:56:00 +01:00
firmware.rs
fmt.rs rust: fmt: use vertical import style 2026-05-20 00:47:24 +02:00
fs.rs
generated_arch_reachable_asm.rs.S
generated_arch_static_branch_asm.rs.S
generated_arch_warn_asm.rs.S
gpu.rs rust: gpu: Add GPU buddy allocator bindings 2026-03-23 21:41:47 +01:00
i2c.rs Driver core changes for 7.2-rc1 2026-06-15 12:41:17 +05:30
id_pool.rs
impl_flags.rs rust: add impl_flags! macro for defining common bitflag operations 2026-02-02 08:09:11 +01:00
init.rs rust: inline some init methods 2026-06-09 04:13:21 +02:00
interop.rs rust: interop: Add list module for C linked list interface 2026-03-23 20:29:28 +01:00
io.rs rust: io: introduce write_reg and LocatedRegister 2026-03-17 20:04:11 +01:00
ioctl.rs rust: make build_assert module the home of related macros 2026-06-10 09:07:13 +02:00
iov.rs
irq.rs
jump_label.rs
Kconfig.test rust: bitfield: Add KUnit tests for bitfield 2026-06-09 04:13:07 +02:00
kunit.rs rust: tests: add Kconfig for KUnit test 2026-06-08 02:30:33 +02:00
lib.rs rust: extract bitfield! macro from register! 2026-06-09 04:12:51 +02:00
list.rs rust: list: hide macros from top-level kernel doc 2026-03-27 12:15:47 +01:00
maple_tree.rs
miscdevice.rs rust: miscdevice: remove redundant imports 2026-05-23 13:47:32 +02:00
mm.rs
module_param.rs rust: module_param: add missing newline to pr_warn_once 2026-06-04 16:42:34 +00:00
net.rs
num.rs
of.rs
opp.rs opp: rust: mark OPP methods as inline 2026-05-25 09:40:52 +05:30
page.rs mm.git review status for mm-hotfixes-stable..mm-stable 2026-06-19 10:14:34 -07:00
pci.rs rust: pci: make Driver trait lifetime-parameterized 2026-05-27 16:23:10 +02:00
pid_namespace.rs
platform.rs driver core: platform: set mod_name in driver registration 2026-06-08 23:28:24 +02:00
prelude.rs rust: prelude: add zerocopy{,_derive}::IntoBytes 2026-06-17 00:32:42 +02:00
print.rs rust: print: Add pr_*_once macros 2026-01-30 05:47:05 +01:00
processor.rs
ptr.rs Rust timekeeping changes for v7.1 2026-04-08 10:44:11 +02:00
pwm.rs rust: pwm: Simplify to_result call sites and unsafe blocks 2026-01-20 18:49:58 +01:00
rbtree.rs Rust changes for v6.20 / v7.0 2026-02-10 11:53:01 -08:00
regulator.rs rust: regulator: do not assume that regulator_get() returns non-null 2026-03-24 13:08:21 +00:00
revocable.rs
safety.rs rust: safety: introduce unsafe_precondition_assert! macro 2026-02-02 08:10:48 +01:00
scatterlist.rs
security.rs
seq_file.rs rust: seq_file: replace kernel::c_str! with C-Strings 2026-01-29 15:32:40 +01:00
sizes.rs rust: sizes: add SizeConstants trait for device address space constants 2026-04-07 12:57:50 +02:00
soc.rs
std_vendor.rs
str.rs rust: str: clean unused import for Rust >= 1.98 2026-06-10 09:07:13 +02:00
sync.rs rust: sync: Replace kernel::c_str! with C-Strings 2026-01-28 09:25:44 +01:00
task.rs Char/Misc/IIO/and others driver updates for 7.1-rc1 2026-04-24 13:23:50 -07:00
time.rs rust: time: fix as_micros_ceil() to round correctly for negative Delta 2026-07-18 19:07:35 +02:00
tracepoint.rs
transmute.rs rust: transmute: simplify code with Rust 1.80.0 split_at_*checked() 2026-04-07 10:00:24 +02:00
types.rs rust: types: add ForLt trait for higher-ranked lifetime support 2026-05-27 16:24:59 +02:00
uaccess.rs Char/Misc/IIO/and others driver updates for 7.1-rc1 2026-04-24 13:23:50 -07:00
usb.rs rust: usb: make Driver trait lifetime-parameterized 2026-05-27 16:23:51 +02:00
workqueue.rs rust: workqueue: use new sync::aref path for imports 2026-03-26 15:45:34 +00:00
xarray.rs rust: make build_assert module the home of related macros 2026-06-10 09:07:13 +02:00