linux/rust/kernel
Linus Torvalds f4e0ff7e45 Rust changes for v6.18
Toolchain and infrastructure:
 
  - Derive 'Zeroable' for all structs and unions generated by 'bindgen'
    where possible and corresponding cleanups. To do so, add the
    'pin-init' crate as a dependency to 'bindings' and 'uapi'.
 
    It also includes its first use in the 'cpufreq' module, with more to
    come in the next cycle.
 
  - Add warning to the 'rustdoc' target to detect broken 'srctree/' links
    and fix existing cases.
 
  - Remove support for unused (since v6.16) host '#[test]'s, simplifying
    the 'rusttest' target. Tests should generally run within KUnit.
 
 'kernel' crate:
 
  - Add 'ptr' module with a new 'Alignment' type, which is always a power
    of two and is used to validate that a given value is a valid
    alignment and to perform masking and alignment operations:
 
        // Checked at build time.
        assert_eq!(Alignment:🆕:<16>().as_usize(), 16);
 
        // Checked at runtime.
        assert_eq!(Alignment::new_checked(15), None);
 
        assert_eq!(Alignment::of::<u8>().log2(), 0);
 
        assert_eq!(0x25u8.align_down(Alignment:🆕:<0x10>()), 0x20);
        assert_eq!(0x5u8.align_up(Alignment:🆕:<0x10>()), Some(0x10));
        assert_eq!(u8::MAX.align_up(Alignment:🆕:<0x10>()), None);
 
    It also includes its first use in Nova.
 
  - Add 'core::mem::{align,size}_of{,_val}' to the prelude, matching
    Rust 1.80.0.
 
  - Keep going with the steps on our migration to the standard library
    'core::ffi::CStr' type (use 'kernel::{fmt, prelude::fmt!}' and use
    upstream method names).
 
  - 'error' module: improve 'Error::from_errno' and 'to_result'
    documentation, including examples/tests.
 
  - 'sync' module: extend 'aref' submodule documentation now that it
    exists, and more updates to complete the ongoing move of 'ARef' and
    'AlwaysRefCounted' to 'sync::aref'.
 
  - 'list' module: add an example/test for 'ListLinksSelfPtr' usage.
 
  - 'alloc' module:
 
    - Implement 'Box::pin_slice()', which constructs a pinned slice of
      elements.
 
    - Provide information about the minimum alignment guarantees of
      'Kmalloc', 'Vmalloc' and 'KVmalloc'.
 
    - Take minimum alignment guarantees of allocators for
      'ForeignOwnable' into account.
 
    - Remove the 'allocator_test' (including 'Cmalloc').
 
    - Add doctest for 'Vec::as_slice()'.
 
    - Constify various methods.
 
  - 'time' module:
 
    - Add methods on 'HrTimer' that can only be called with exclusive
      access to an unarmed timer, or from timer callback context.
 
    - Add arithmetic operations to 'Instant' and 'Delta'.
 
    - Add a few convenience and access methods to 'HrTimer' and
      'Instant'.
 
 'macros' crate:
 
  - Reduce collections in 'quote!' macro.
 
 And a few other cleanups and improvements.
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Merge tag 'rust-6.18' of git://git.kernel.org/pub/scm/linux/kernel/git/ojeda/linux

Pull rust updates from Miguel Ojeda:
 "Toolchain and infrastructure:

   - Derive 'Zeroable' for all structs and unions generated by 'bindgen'
     where possible and corresponding cleanups. To do so, add the
     'pin-init' crate as a dependency to 'bindings' and 'uapi'.

     It also includes its first use in the 'cpufreq' module, with more
     to come in the next cycle.

   - Add warning to the 'rustdoc' target to detect broken 'srctree/'
     links and fix existing cases.

   - Remove support for unused (since v6.16) host '#[test]'s,
     simplifying the 'rusttest' target. Tests should generally run
     within KUnit.

  'kernel' crate:

   - Add 'ptr' module with a new 'Alignment' type, which is always a
     power of two and is used to validate that a given value is a valid
     alignment and to perform masking and alignment operations:

         // Checked at build time.
         assert_eq!(Alignment:🆕:<16>().as_usize(), 16);

         // Checked at runtime.
         assert_eq!(Alignment::new_checked(15), None);

         assert_eq!(Alignment::of::<u8>().log2(), 0);

         assert_eq!(0x25u8.align_down(Alignment:🆕:<0x10>()), 0x20);
         assert_eq!(0x5u8.align_up(Alignment:🆕:<0x10>()), Some(0x10));
         assert_eq!(u8::MAX.align_up(Alignment:🆕:<0x10>()), None);

     It also includes its first use in Nova.

   - Add 'core::mem::{align,size}_of{,_val}' to the prelude, matching
     Rust 1.80.0.

   - Keep going with the steps on our migration to the standard library
     'core::ffi::CStr' type (use 'kernel::{fmt, prelude::fmt!}' and use
     upstream method names).

   - 'error' module: improve 'Error::from_errno' and 'to_result'
     documentation, including examples/tests.

   - 'sync' module: extend 'aref' submodule documentation now that it
     exists, and more updates to complete the ongoing move of 'ARef' and
     'AlwaysRefCounted' to 'sync::aref'.

   - 'list' module: add an example/test for 'ListLinksSelfPtr' usage.

   - 'alloc' module:

      - Implement 'Box::pin_slice()', which constructs a pinned slice of
        elements.

      - Provide information about the minimum alignment guarantees of
        'Kmalloc', 'Vmalloc' and 'KVmalloc'.

      - Take minimum alignment guarantees of allocators for
        'ForeignOwnable' into account.

      - Remove the 'allocator_test' (including 'Cmalloc').

      - Add doctest for 'Vec::as_slice()'.

      - Constify various methods.

   - 'time' module:

      - Add methods on 'HrTimer' that can only be called with exclusive
        access to an unarmed timer, or from timer callback context.

      - Add arithmetic operations to 'Instant' and 'Delta'.

      - Add a few convenience and access methods to 'HrTimer' and
        'Instant'.

  'macros' crate:

   - Reduce collections in 'quote!' macro.

  And a few other cleanups and improvements"

* tag 'rust-6.18' of git://git.kernel.org/pub/scm/linux/kernel/git/ojeda/linux: (58 commits)
  gpu: nova-core: use Alignment for alignment-related operations
  rust: add `Alignment` type
  rust: macros: reduce collections in `quote!` macro
  rust: acpi: use `core::ffi::CStr` method names
  rust: of: use `core::ffi::CStr` method names
  rust: net: use `core::ffi::CStr` method names
  rust: miscdevice: use `core::ffi::CStr` method names
  rust: kunit: use `core::ffi::CStr` method names
  rust: firmware: use `core::ffi::CStr` method names
  rust: drm: use `core::ffi::CStr` method names
  rust: cpufreq: use `core::ffi::CStr` method names
  rust: configfs: use `core::ffi::CStr` method names
  rust: auxiliary: use `core::ffi::CStr` method names
  drm/panic: use `core::ffi::CStr` method names
  rust: device: use `kernel::{fmt,prelude::fmt!}`
  rust: sync: use `kernel::{fmt,prelude::fmt!}`
  rust: seq_file: use `kernel::{fmt,prelude::fmt!}`
  rust: kunit: use `kernel::{fmt,prelude::fmt!}`
  rust: file: use `kernel::{fmt,prelude::fmt!}`
  rust: device: use `kernel::{fmt,prelude::fmt!}`
  ...
2025-09-30 19:12:49 -07:00
..
alloc rust: alloc: use kernel::{fmt,prelude::fmt!} 2025-09-16 09:26:58 +02:00
block Rust changes for v6.18 2025-09-30 19:12:49 -07:00
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 changes for v6.18 2025-09-30 19:12:49 -07:00
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 changes for v6.18 2025-09-30 19:12:49 -07:00
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
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 rust,cred: update AlwaysRefCounted import to sync::aref 2025-08-19 15:59:36 -04:00
device.rs Rust changes for v6.18 2025-09-30 19:12:49 -07:00
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
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
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: pid_namespace: update AlwaysRefCounted imports from sync::aref 2025-08-19 13:08:41 +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: implement kernel::sync::Refcount 2025-09-15 09:38:35 +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