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linux/rust/kernel
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Nakamura Shuta bf074eb689 rust: str: improve safety comment for CString::try_from_fmt 
Improve the safety comment for the `inc_len()` call in
`CString::try_from_fmt()` to clarify why `bytes_written()` is
guaranteed not to exceed the buffer capacity.

The current comment states that bytes written is bounded by size,
but does not explain that this invariant is maintained because:
1. The `Formatter` is created with `size` as its capacity limit
2. The `?` operators on `write_fmt` and `write_str` ensure early
   return if writing exceeds this limit

Suggested-by: Gary Guo <gary@garyguo.net>
Link: https://lore.kernel.org/rust-for-linux/20221114145329.0f47a3ab@GaryWorkstation/
Link: https://github.com/Rust-for-Linux/linux/issues/936
Signed-off-by: Nakamura Shuta <nakamura.shuta@gmail.com>
Reviewed-by: Alice Ryhl <aliceryhl@google.com>
Link: https://patch.msgid.link/20260119062925.1647-1-nakamura.shuta@gmail.com
[ Updated tags: it was a suggestion from Gary from the mailing list
  (the linked issue is mostly about adding a `debug_assert_eq!`).
    - Miguel ]
Signed-off-by: Miguel Ojeda <ojeda@kernel.org>
 		2026-03-23 00:08:55 +01:00
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alloc
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block rust: block: mq: use pin_init::zeroed() for tag_set 2026-01-21 07:37:15 -07:00
debugfs Driver core changes for 7.0-rc1 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
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io Linux 6.19-rc7 2026-01-26 13:23:52 +01:00
iommu rust: iommu: fix `srctree` link warning 2026-01-22 09:19:30 +01:00
irq Rust fixes for v7.0-rc1 2026-02-22 08:43:31 -08:00
list Rust fixes for v7.0-rc1 2026-02-22 08:43:31 -08:00
mm
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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
str
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sync Char/Misc/IIO driver changes for 7.0-rc1 2026-02-17 09:11:04 -08:00
time
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.gitignore
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acpi.rs
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alloc.rs
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auxiliary.rs Linux 6.19-rc7 2026-01-26 13:23:52 +01:00
bitmap.rs
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bits.rs rust: bits: always inline functions using build_assert with arguments 2026-01-18 20:40:11 +01:00
block.rs
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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
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cpufreq.rs rust: cpufreq: replace `kernel::c_str!` with C-Strings 2026-01-27 11:21:22 +05:30
cpumask.rs rust: cpumask: rename methods of Cpumask for clarity and consistency 2026-01-27 11:21:23 +05:30
cred.rs
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debugfs.rs rust: debugfs: Use kernel Atomic type in docs example 2026-01-19 15:02:46 +01:00
device.rs Linux 6.19-rc7 2026-01-26 13:23:52 +01:00
device_id.rs rust: device_id: replace incorrect word in safety documentation 2025-12-29 14:09:18 +01:00
devres.rs rust: devres: fix race condition due to nesting 2026-02-07 01:03:49 +01:00
dma.rs rust: dma: allow drivers to tune max segment size 2026-01-28 16:53:24 +01:00
driver.rs Linux 6.19-rc7 2026-01-26 13:23:52 +01:00
error.rs
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faux.rs rust: faux: use "kernel vertical" style for imports 2026-01-07 19:56:00 +01:00
firmware.rs
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fmt.rs rust: fmt: Fix grammar in Adapter description 2026-01-04 23:51:35 +01:00
fs.rs
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generated_arch_reachable_asm.rs.S
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generated_arch_static_branch_asm.rs.S
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generated_arch_warn_asm.rs.S
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i2c.rs rust: i2c: Update ARef and AlwaysRefCounted imports to use sync::aref 2026-03-15 20:30:29 +01:00
id_pool.rs
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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
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iov.rs
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irq.rs
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jump_label.rs
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kunit.rs rust: kunit: fix warning when !CONFIG_PRINTK 2026-03-02 10:01:15 -07:00
lib.rs Driver core changes for 7.0-rc1 2026-02-11 17:43:59 -08:00
list.rs
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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
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module_param.rs
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net.rs
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num.rs
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of.rs
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opp.rs
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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
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platform.rs Linux 6.19-rc7 2026-01-26 13:23:52 +01:00
prelude.rs
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print.rs rust: print: Add pr_*_once macros 2026-01-30 05:47:05 +01:00
processor.rs
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ptr.rs rust: ptr: replace unneeded use of `build_assert` 2026-01-19 01:13:22 +01:00
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: replace `kernel::c_str!` with C-Strings 2025-12-22 14:52:12 +00:00
revocable.rs
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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
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seq_file.rs rust: seq_file: replace `kernel::c_str!` with C-Strings 2026-01-29 15:32:40 +01:00
sizes.rs
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slice.rs
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soc.rs rust: Add soc_device support 2025-12-28 12:43:56 +01:00
static_assert.rs
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std_vendor.rs
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str.rs rust: str: improve safety comment for CString::try_from_fmt 2026-03-23 00:08:55 +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: use `as_char_ptr` instead of `as_ptr().cast()` 2026-03-10 23:52:21 +01:00
time.rs
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tracepoint.rs
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transmute.rs rust: transmute: implement FromBytes and AsBytes for inhabited ZSTs 2026-01-26 03:16:31 +01:00
types.rs rust: types: remove temporary re-exports of ARef and AlwaysRefCounted 2026-03-15 20:30:29 +01:00
uaccess.rs
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usb.rs rust: usb: Update AlwaysRefCounted imports to use sync::aref 2026-03-15 20:30:29 +01:00
workqueue.rs
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xarray.rs
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