<feed xmlns='http://www.w3.org/2005/Atom'>
<title>linux-stable.git/rust/macros, branch master</title>
<subtitle>Linux kernel stable tree</subtitle>
<link rel='alternate' type='text/html' href='https://git.tavy.me/linux-stable.git/'/>
<entry>
<title>Merge tag 'modules-7.3-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/modules/linux</title>
<updated>2026-08-21T19:47:25+00:00</updated>
<author>
<name>Linus Torvalds</name>
<email>torvalds@linux-foundation.org</email>
</author>
<published>2026-08-21T19:47:25+00:00</published>
<link rel='alternate' type='text/html' href='https://git.tavy.me/linux-stable.git/commit/?id=2f0f6b0773be0a1ec475097ae54848eea42adc7d'/>
<id>2f0f6b0773be0a1ec475097ae54848eea42adc7d</id>
<content type='text'>
Pull module updates from Petr Pavlu:

 - Remove unnecessary module::args. Nowadays, no parameter-handling code
   points into the module::args buffer. The last user of module::args in
   xtensa/simdisk is updated and the data is then removed

 - Add Rust support for boolean parameters. This will initially be used
   by the Rust null block driver

 - Fix clearing the current charp parameter value when setting a new one
   fails due to an allocation failure

 - Improve the debugging code for kmod (request_module()) duplicates.
   Fix a potential use-after-free when waiting on a duplicate request
   and make several general improvements to the code

 - Fix the symbol size returned when looking up a data symbol through
   kallsyms

 - Smaller fixes and cleanups

* tag 'modules-7.3-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/modules/linux:
  params: fix charp corruption on allocation failure
  module: validate string table section types
  module/dups: Clean up includes
  module/dups: Use strcmp() to compare module names
  module/dups: Use scope-based cleanup helpers
  module/dups: Avoid unnecessary kmod_dup_req allocations
  module/dups: Fix use-after-free in kmod_dup_req lifetime handling
  module/dups: Inform duplicate requests about the result directly
  rust: module_param: support bool parameters
  rust: module_param: return value by copy from `value`
  module: Remove unnecessary module::args
  xtensa/simdisk: Avoid referring to module::args
  module: Remove unused DISCARD_EH_FRAME definition from module.lds.S
  module: procfs: use matching type for accumulator in module_total_size()
  module: use strscpy() to copy module names in stats and dup tracking
  params: fix path of /sys/module/XYZ/parameters/ in comment
  module/kallsyms: fix nextval for data symbol lookup
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
Pull module updates from Petr Pavlu:

 - Remove unnecessary module::args. Nowadays, no parameter-handling code
   points into the module::args buffer. The last user of module::args in
   xtensa/simdisk is updated and the data is then removed

 - Add Rust support for boolean parameters. This will initially be used
   by the Rust null block driver

 - Fix clearing the current charp parameter value when setting a new one
   fails due to an allocation failure

 - Improve the debugging code for kmod (request_module()) duplicates.
   Fix a potential use-after-free when waiting on a duplicate request
   and make several general improvements to the code

 - Fix the symbol size returned when looking up a data symbol through
   kallsyms

 - Smaller fixes and cleanups

* tag 'modules-7.3-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/modules/linux:
  params: fix charp corruption on allocation failure
  module: validate string table section types
  module/dups: Clean up includes
  module/dups: Use strcmp() to compare module names
  module/dups: Use scope-based cleanup helpers
  module/dups: Avoid unnecessary kmod_dup_req allocations
  module/dups: Fix use-after-free in kmod_dup_req lifetime handling
  module/dups: Inform duplicate requests about the result directly
  rust: module_param: support bool parameters
  rust: module_param: return value by copy from `value`
  module: Remove unnecessary module::args
  xtensa/simdisk: Avoid referring to module::args
  module: Remove unused DISCARD_EH_FRAME definition from module.lds.S
  module: procfs: use matching type for accumulator in module_total_size()
  module: use strscpy() to copy module names in stats and dup tracking
  params: fix path of /sys/module/XYZ/parameters/ in comment
  module/kallsyms: fix nextval for data symbol lookup
</pre>
</div>
</content>
</entry>
<entry>
<title>Merge tag 'driver-core-7.3-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/driver-core/driver-core</title>
<updated>2026-08-19T17:42:18+00:00</updated>
<author>
<name>Linus Torvalds</name>
<email>torvalds@linux-foundation.org</email>
</author>
<published>2026-08-19T17:42:18+00:00</published>
<link rel='alternate' type='text/html' href='https://git.tavy.me/linux-stable.git/commit/?id=59e6295fac26b8e85c1ea859cdd89fa1e47519d7'/>
<id>59e6295fac26b8e85c1ea859cdd89fa1e47519d7</id>
<content type='text'>
Pull driver core updates from Danilo Krummrich:
 "container_of:

   - Apply typeof_member(), remove the local __mptr variable to
     eliminate variable shadowing warnings on nested container_of()
     calls, and remove unnecessary parentheses

  core:

   - Add driver name to probe debug print for initcall_debug

   - Avoid repeatedly printing the same 'Fixed dependency cycle' log

   - Unwind device_add() on attribute creation failure in
     attribute_container_add_class_device()

   - Remove statistics group if encryption group creation fails in
     transport_add_class_device()

  debugfs:

   - Fix lockdown check for mmap_prepare()

   - Warn if file creation failed due to uninitialized debugfs

  device property:

   - Implement fw_devlink support for software nodes by adding
     software_node_add_links(), which creates fwnode links from
     DEV_PROP_REF properties to enable automatic probe ordering. Add
     kunit-managed fwnode helpers and test coverage

   - Fix infinite loop in fwnode_for_each_child_node() when the
     secondary fwnode has more than one child. Add test cases

   - Fix out-of-bounds access in software_node_get_reference_args() when
     called with index -1 (UINT_MAX)

   - Refactor to use RAII approach with __free()

   - Add Bartosz Golaszewski as software node reviewer

  firmware loader:

   - Fix race where a sysfs fallback request can complete before being
     queued as pending, leading to a use-after-free on the next fallback
     request

   - Reject 0-size built-in firmware and fail the build on empty
     firmware files in CONFIG_EXTRA_FIRMWARE

  kobject:

   - Provide __KOBJ_ATTR() and __KOBJ_ATTR_RO/WO() initialization macros
     and allow the constification of kobject attributes, enabling them
     to reside in read-only memory

  platform:

   - Provide platform_device_set_of_node(), platform_device_set_fwnode(),
     and platform_device_set_of_node_from_dev() helpers that encapsulate
     firmware node reference counting for dynamically allocated platform
     devices

     Convert all in-tree users that manually assigned dev.of_node or
     dev.fwnode, fixing a pre-existing refcount bug in powermac. Switch
     to counting references of all firmware node types, not only OF
     nodes

   - Unify the release path for dynamically allocated platform devices
     by removing platform_device_release_full(). Amend the fwnode setter
     API contract to warn if a primary software node is overwritten. Add
     KUnit tests for correct software node removal on device
     unregistration

  Rust:

   - Auxiliary:
       - Add registration_data_with() closure-based API for invariant
         ForLt types

   - Debugfs:
       - Migrate BinaryWriter and BinaryReaderMut trait requirements
         from kernel::transmute traits to zerocopy traits

   - Device:
       - Add BoundInternal device context and InternalBoundContext trait
         for bus abstractions that need internal access to a bound
         device.
       - Make the lifetime on Core and CoreInternal invariant to prevent
         coercion to shorter lifetimes

   - Devres:
       - Fix race between concurrent revokers where the losing revoker
         could return before the winning revoker finished dropping the
         inner data, causing use-after-free.
       - Ensure revocation is complete before the device finishes
         unbinding by making the synchronization bidirectional.
       - Add DevresLt&lt;F: ForLt&gt;, a wrapper around Devres that shortens
         'static back to the caller's borrow scope. Implement ForLt and
         CovariantForLt for Bar, IoMem, and ExclusiveIoMem

   - Driver:
       - Switch from index-based to pointer-based device ID info lookup,
         storing static references in driver_data. Centralize device ID
         handling in device_id.rs, removing the open-coded ACPI/OF
         matching logic and duplicate ID table from driver.rs

   - I/O:
       - Make I/O regions typed (with a dynamically-sized Region type
         for the existing untyped case), create view types representing
         subregions of a mapped I/O region, and add io_project!() for
         safely creating subviews.
       - Split Io into a base trait (IoBase) and an extension trait (Io)
         with a blanket implementation, preventing implementers from
         overriding provided methods that unsafe code relies on.
       - Add a SysMem backend for shared system memory with volatile
         access, and make Coherent implement Io via an I/O view type.
         Add IoSysMap as sum type of Mmio and SysMem. Add copying
         methods (memcpy_{from,to}io()) and read_val()/write_val() for
         typed access.
       - Replace dma_read!()/dma_write!() with io_read!()/io_write!()
         for primitives and copying methods for aggregates; drop the old
         macros. Convert nova-core to use I/O projection.
       - Fix internal shortcut rule dispatch in the register!() macro,
         remove unused rule arguments, and use path fragments for alias
         destinations

   - IRQ:
       - Make irq::Registration compatible with lifetime-bound drivers
         by removing the 'static bound on Handler/ThreadedHandler and
         replacing Devres&lt;RegistrationInner&gt; with direct
         request_irq()/free_irq() calls. Handlers can now directly own
         lifetime-bound device resources

   - PCI:
       - Convert IrqVectorRegistration to a lifetime-annotated owning
         type, giving drivers explicit control over the allocation
         lifetime. IrqVector embeds a resolved IrqRequest, making the
         conversion infallible. Remove the redundant
         request_irq()/request_threaded_irq() wrappers from pci::Device.
       - Add pci_irq_type() C helper and expose it via irq_type() on
         IrqVectorRegistration and IrqVector, returning PCI_IRQ_MSIX,
         PCI_IRQ_MSI, or PCI_IRQ_INTX.
       - Mark pci::Device refcount methods inline

   - Serdev:
       - Add Rust abstractions for the serial device bus, including
         serdev::Driver trait, serdev::Device wrapping struct
         serdev_device, and serdev::Adapter implementing
         RegistrationOps. Includes a sample driver. Markus Probst takes
         over as serdev maintainer for both C and Rust code

   - Misc:
       - Split ForLt into a base trait (providing the Of&lt;'a&gt; GAT) and an
         unsafe CovariantForLt subtrait guaranteeing covariance,
         enabling invariant types (e.g. those containing Mutex&lt;&amp;'bound T&gt;)
         to participate in the ForLt abstraction.
       - Fix Coherent read past EOF returning -ERANGE instead of zero.
       - Fix firmware example UB by avoiding null-pointer ARef

  misc:
   - Avoid iattr allocation in kernfs listxattr by using
     kernfs_iattrs_noalloc().
   - Unregister SoC bus on early device registration failure.
   - Remove unused DMA_FENCE_TRACE Kconfig symbol.
   - Fix /sys/module path in comment.
   - Refactor ISA bus init to remove nested blocks.
   - Remove redundant nodemask clears in numa_init().
   - Add kernel-doc for fwnode_operations and sys_soc.h, mark
     internal property data as private for kernel-doc, and add
     property.h/fwnode.h to driver-api infrastructure docs.
   - Add MAINTAINERS entry for sys_soc.h"

* tag 'driver-core-7.3-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/driver-core/driver-core: (129 commits)
  rust: pci: expose the allocated interrupt type
  PCI: Add pci_irq_type() to query the allocated interrupt type
  rust: pci: remove request_irq() and request_threaded_irq() from Device
  rust: pci: resolve IRQ in index() and embed IrqRequest in IrqVector
  rust: pci: convert IrqVectorRegistration to a lifetime-managed owning type
  kernfs: avoid iattr allocation in listxattr
  rust: serdev: use ThisModule::as_ptr() instead of field access
  ACPI/IORT: use platform_device_set_fwnode()
  ACPI/APMT: use platform_device_set_fwnode()
  firmware_loader: do not queue completed sysfs fallback requests
  rust: pci: Mark Device refcount methods inline
  rust: irq: make Registration compatible with lifetime-bound drivers
  rust: net/phy: remove expansion from doc
  rust: dma: return zero for Coherent reads past EOF
  rust: io: register: use path fragment for alias destination
  rust: io: register: remove unused rule arguments
  rust: io: register: dispatch shortcut rules internally
  MAINTAINERS: add sys_soc.h to DRIVER CORE
  rust: debugfs: remove unsafe blocks from traits impl for Vec
  rust: debugfs: migrate debugfs traits requirements to zerocopy
  ...
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
Pull driver core updates from Danilo Krummrich:
 "container_of:

   - Apply typeof_member(), remove the local __mptr variable to
     eliminate variable shadowing warnings on nested container_of()
     calls, and remove unnecessary parentheses

  core:

   - Add driver name to probe debug print for initcall_debug

   - Avoid repeatedly printing the same 'Fixed dependency cycle' log

   - Unwind device_add() on attribute creation failure in
     attribute_container_add_class_device()

   - Remove statistics group if encryption group creation fails in
     transport_add_class_device()

  debugfs:

   - Fix lockdown check for mmap_prepare()

   - Warn if file creation failed due to uninitialized debugfs

  device property:

   - Implement fw_devlink support for software nodes by adding
     software_node_add_links(), which creates fwnode links from
     DEV_PROP_REF properties to enable automatic probe ordering. Add
     kunit-managed fwnode helpers and test coverage

   - Fix infinite loop in fwnode_for_each_child_node() when the
     secondary fwnode has more than one child. Add test cases

   - Fix out-of-bounds access in software_node_get_reference_args() when
     called with index -1 (UINT_MAX)

   - Refactor to use RAII approach with __free()

   - Add Bartosz Golaszewski as software node reviewer

  firmware loader:

   - Fix race where a sysfs fallback request can complete before being
     queued as pending, leading to a use-after-free on the next fallback
     request

   - Reject 0-size built-in firmware and fail the build on empty
     firmware files in CONFIG_EXTRA_FIRMWARE

  kobject:

   - Provide __KOBJ_ATTR() and __KOBJ_ATTR_RO/WO() initialization macros
     and allow the constification of kobject attributes, enabling them
     to reside in read-only memory

  platform:

   - Provide platform_device_set_of_node(), platform_device_set_fwnode(),
     and platform_device_set_of_node_from_dev() helpers that encapsulate
     firmware node reference counting for dynamically allocated platform
     devices

     Convert all in-tree users that manually assigned dev.of_node or
     dev.fwnode, fixing a pre-existing refcount bug in powermac. Switch
     to counting references of all firmware node types, not only OF
     nodes

   - Unify the release path for dynamically allocated platform devices
     by removing platform_device_release_full(). Amend the fwnode setter
     API contract to warn if a primary software node is overwritten. Add
     KUnit tests for correct software node removal on device
     unregistration

  Rust:

   - Auxiliary:
       - Add registration_data_with() closure-based API for invariant
         ForLt types

   - Debugfs:
       - Migrate BinaryWriter and BinaryReaderMut trait requirements
         from kernel::transmute traits to zerocopy traits

   - Device:
       - Add BoundInternal device context and InternalBoundContext trait
         for bus abstractions that need internal access to a bound
         device.
       - Make the lifetime on Core and CoreInternal invariant to prevent
         coercion to shorter lifetimes

   - Devres:
       - Fix race between concurrent revokers where the losing revoker
         could return before the winning revoker finished dropping the
         inner data, causing use-after-free.
       - Ensure revocation is complete before the device finishes
         unbinding by making the synchronization bidirectional.
       - Add DevresLt&lt;F: ForLt&gt;, a wrapper around Devres that shortens
         'static back to the caller's borrow scope. Implement ForLt and
         CovariantForLt for Bar, IoMem, and ExclusiveIoMem

   - Driver:
       - Switch from index-based to pointer-based device ID info lookup,
         storing static references in driver_data. Centralize device ID
         handling in device_id.rs, removing the open-coded ACPI/OF
         matching logic and duplicate ID table from driver.rs

   - I/O:
       - Make I/O regions typed (with a dynamically-sized Region type
         for the existing untyped case), create view types representing
         subregions of a mapped I/O region, and add io_project!() for
         safely creating subviews.
       - Split Io into a base trait (IoBase) and an extension trait (Io)
         with a blanket implementation, preventing implementers from
         overriding provided methods that unsafe code relies on.
       - Add a SysMem backend for shared system memory with volatile
         access, and make Coherent implement Io via an I/O view type.
         Add IoSysMap as sum type of Mmio and SysMem. Add copying
         methods (memcpy_{from,to}io()) and read_val()/write_val() for
         typed access.
       - Replace dma_read!()/dma_write!() with io_read!()/io_write!()
         for primitives and copying methods for aggregates; drop the old
         macros. Convert nova-core to use I/O projection.
       - Fix internal shortcut rule dispatch in the register!() macro,
         remove unused rule arguments, and use path fragments for alias
         destinations

   - IRQ:
       - Make irq::Registration compatible with lifetime-bound drivers
         by removing the 'static bound on Handler/ThreadedHandler and
         replacing Devres&lt;RegistrationInner&gt; with direct
         request_irq()/free_irq() calls. Handlers can now directly own
         lifetime-bound device resources

   - PCI:
       - Convert IrqVectorRegistration to a lifetime-annotated owning
         type, giving drivers explicit control over the allocation
         lifetime. IrqVector embeds a resolved IrqRequest, making the
         conversion infallible. Remove the redundant
         request_irq()/request_threaded_irq() wrappers from pci::Device.
       - Add pci_irq_type() C helper and expose it via irq_type() on
         IrqVectorRegistration and IrqVector, returning PCI_IRQ_MSIX,
         PCI_IRQ_MSI, or PCI_IRQ_INTX.
       - Mark pci::Device refcount methods inline

   - Serdev:
       - Add Rust abstractions for the serial device bus, including
         serdev::Driver trait, serdev::Device wrapping struct
         serdev_device, and serdev::Adapter implementing
         RegistrationOps. Includes a sample driver. Markus Probst takes
         over as serdev maintainer for both C and Rust code

   - Misc:
       - Split ForLt into a base trait (providing the Of&lt;'a&gt; GAT) and an
         unsafe CovariantForLt subtrait guaranteeing covariance,
         enabling invariant types (e.g. those containing Mutex&lt;&amp;'bound T&gt;)
         to participate in the ForLt abstraction.
       - Fix Coherent read past EOF returning -ERANGE instead of zero.
       - Fix firmware example UB by avoiding null-pointer ARef

  misc:
   - Avoid iattr allocation in kernfs listxattr by using
     kernfs_iattrs_noalloc().
   - Unregister SoC bus on early device registration failure.
   - Remove unused DMA_FENCE_TRACE Kconfig symbol.
   - Fix /sys/module path in comment.
   - Refactor ISA bus init to remove nested blocks.
   - Remove redundant nodemask clears in numa_init().
   - Add kernel-doc for fwnode_operations and sys_soc.h, mark
     internal property data as private for kernel-doc, and add
     property.h/fwnode.h to driver-api infrastructure docs.
   - Add MAINTAINERS entry for sys_soc.h"

* tag 'driver-core-7.3-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/driver-core/driver-core: (129 commits)
  rust: pci: expose the allocated interrupt type
  PCI: Add pci_irq_type() to query the allocated interrupt type
  rust: pci: remove request_irq() and request_threaded_irq() from Device
  rust: pci: resolve IRQ in index() and embed IrqRequest in IrqVector
  rust: pci: convert IrqVectorRegistration to a lifetime-managed owning type
  kernfs: avoid iattr allocation in listxattr
  rust: serdev: use ThisModule::as_ptr() instead of field access
  ACPI/IORT: use platform_device_set_fwnode()
  ACPI/APMT: use platform_device_set_fwnode()
  firmware_loader: do not queue completed sysfs fallback requests
  rust: pci: Mark Device refcount methods inline
  rust: irq: make Registration compatible with lifetime-bound drivers
  rust: net/phy: remove expansion from doc
  rust: dma: return zero for Coherent reads past EOF
  rust: io: register: use path fragment for alias destination
  rust: io: register: remove unused rule arguments
  rust: io: register: dispatch shortcut rules internally
  MAINTAINERS: add sys_soc.h to DRIVER CORE
  rust: debugfs: remove unsafe blocks from traits impl for Vec
  rust: debugfs: migrate debugfs traits requirements to zerocopy
  ...
</pre>
</div>
</content>
</entry>
<entry>
<title>rust: macros: remove `THIS_MODULE` static from `module!`</title>
<updated>2026-08-12T07:36:26+00:00</updated>
<author>
<name>Alvin Sun</name>
<email>alvin.sun@linux.dev</email>
</author>
<published>2026-08-11T06:39:51+00:00</published>
<link rel='alternate' type='text/html' href='https://git.tavy.me/linux-stable.git/commit/?id=cdb7c5e018868e296d1586402b8e542f92b55710'/>
<id>cdb7c5e018868e296d1586402b8e542f92b55710</id>
<content type='text'>
All users have been migrated to `ModuleMetadata::THIS_MODULE` const or
`this_module::&lt;LocalModule&gt;()` helper. The `static THIS_MODULE`
generated by the `module!` macro is no longer referenced anywhere,
so remove it to avoid having two sources of the same `ThisModule`
pointer.

Assisted-by: opencode:glm-5.2
Reviewed-by: Andreas Hindborg &lt;a.hindborg@kernel.org&gt;
Reviewed-by: Gary Guo &lt;gary@garyguo.net&gt;
Acked-by: Danilo Krummrich &lt;dakr@kernel.org&gt;
Reviewed-by: Alice Ryhl &lt;aliceryhl@google.com&gt;
Acked-by: Petr Pavlu &lt;petr.pavlu@suse.com&gt;
Signed-off-by: Alvin Sun &lt;alvin.sun@linux.dev&gt;
Link: https://patch.msgid.link/20260811-fix-fops-owner-v10-9-7e71776f9dbe@linux.dev
Signed-off-by: Miguel Ojeda &lt;ojeda@kernel.org&gt;
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
All users have been migrated to `ModuleMetadata::THIS_MODULE` const or
`this_module::&lt;LocalModule&gt;()` helper. The `static THIS_MODULE`
generated by the `module!` macro is no longer referenced anywhere,
so remove it to avoid having two sources of the same `ThisModule`
pointer.

Assisted-by: opencode:glm-5.2
Reviewed-by: Andreas Hindborg &lt;a.hindborg@kernel.org&gt;
Reviewed-by: Gary Guo &lt;gary@garyguo.net&gt;
Acked-by: Danilo Krummrich &lt;dakr@kernel.org&gt;
Reviewed-by: Alice Ryhl &lt;aliceryhl@google.com&gt;
Acked-by: Petr Pavlu &lt;petr.pavlu@suse.com&gt;
Signed-off-by: Alvin Sun &lt;alvin.sun@linux.dev&gt;
Link: https://patch.msgid.link/20260811-fix-fops-owner-v10-9-7e71776f9dbe@linux.dev
Signed-off-by: Miguel Ojeda &lt;ojeda@kernel.org&gt;
</pre>
</div>
</content>
</entry>
<entry>
<title>rust: macros: auto-insert OwnerModule in #[vtable]</title>
<updated>2026-08-12T07:36:26+00:00</updated>
<author>
<name>Alvin Sun</name>
<email>alvin.sun@linux.dev</email>
</author>
<published>2026-08-11T06:39:46+00:00</published>
<link rel='alternate' type='text/html' href='https://git.tavy.me/linux-stable.git/commit/?id=7d3e99e93382f1a49eab5afe78586a66907e4ff3'/>
<id>7d3e99e93382f1a49eab5afe78586a66907e4ff3</id>
<content type='text'>
Auto-add `type OwnerModule: ::kernel::ModuleMetadata;` as a required
associated type on the trait side if not already defined, and
auto-insert `type OwnerModule = crate::LocalModule;` on the impl side
if not explicitly provided, eliminating the need to manually declare
and implement `OwnerModule` in every vtable trait and impl.

Assisted-by: opencode:glm-5.2
Reviewed-by: Andreas Hindborg &lt;a.hindborg@kernel.org&gt;
Suggested-by: Gary Guo &lt;gary@garyguo.net&gt;
Link: https://lore.kernel.org/all/DIMMWHUOLPSH.13JFRHDKDQJGO@garyguo.net
Reviewed-by: Gary Guo &lt;gary@garyguo.net&gt;
Acked-by: Danilo Krummrich &lt;dakr@kernel.org&gt;
Reviewed-by: Alice Ryhl &lt;aliceryhl@google.com&gt;
Signed-off-by: Alvin Sun &lt;alvin.sun@linux.dev&gt;
Link: https://patch.msgid.link/20260811-fix-fops-owner-v10-4-7e71776f9dbe@linux.dev
[ Fixed `rusttest` by adding a dummy `LocalModule`. Removed interim
  `#[allow(dead_code)]`. - Miguel ]
Signed-off-by: Miguel Ojeda &lt;ojeda@kernel.org&gt;
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
Auto-add `type OwnerModule: ::kernel::ModuleMetadata;` as a required
associated type on the trait side if not already defined, and
auto-insert `type OwnerModule = crate::LocalModule;` on the impl side
if not explicitly provided, eliminating the need to manually declare
and implement `OwnerModule` in every vtable trait and impl.

Assisted-by: opencode:glm-5.2
Reviewed-by: Andreas Hindborg &lt;a.hindborg@kernel.org&gt;
Suggested-by: Gary Guo &lt;gary@garyguo.net&gt;
Link: https://lore.kernel.org/all/DIMMWHUOLPSH.13JFRHDKDQJGO@garyguo.net
Reviewed-by: Gary Guo &lt;gary@garyguo.net&gt;
Acked-by: Danilo Krummrich &lt;dakr@kernel.org&gt;
Reviewed-by: Alice Ryhl &lt;aliceryhl@google.com&gt;
Signed-off-by: Alvin Sun &lt;alvin.sun@linux.dev&gt;
Link: https://patch.msgid.link/20260811-fix-fops-owner-v10-4-7e71776f9dbe@linux.dev
[ Fixed `rusttest` by adding a dummy `LocalModule`. Removed interim
  `#[allow(dead_code)]`. - Miguel ]
Signed-off-by: Miguel Ojeda &lt;ojeda@kernel.org&gt;
</pre>
</div>
</content>
</entry>
<entry>
<title>rust: module: add `THIS_MODULE` const to `ModuleMetadata` trait</title>
<updated>2026-08-12T07:36:26+00:00</updated>
<author>
<name>Alvin Sun</name>
<email>alvin.sun@linux.dev</email>
</author>
<published>2026-08-11T06:39:44+00:00</published>
<link rel='alternate' type='text/html' href='https://git.tavy.me/linux-stable.git/commit/?id=54f846db7b35069959833d2f6ace998c2e11c908'/>
<id>54f846db7b35069959833d2f6ace998c2e11c908</id>
<content type='text'>
Since `const_refs_to_static` has been stable as of the MSRV bump, a
`ThisModule` pointer can now be used in const contexts.

Add a `THIS_MODULE` const to the `ModuleMetadata` trait so that modules
can provide their `ThisModule` pointer in const contexts such as static
`file_operations`.

Add a `this_module()` helper to retrieve the `THIS_MODULE` pointer of a
given module type, and update `__init` to use it instead of the
`THIS_MODULE` static generated by the `module!` macro.

The `static THIS_MODULE` generated by the `module!` macro is retained
for backwards compatibility with existing users and removed in a later
patch once all references have been migrated.

Assisted-by: opencode:glm-5.2
Reviewed-by: Andreas Hindborg &lt;a.hindborg@kernel.org&gt;
Reviewed-by: Gary Guo &lt;gary@garyguo.net&gt;
Acked-by: Danilo Krummrich &lt;dakr@kernel.org&gt;
Reviewed-by: Alice Ryhl &lt;aliceryhl@google.com&gt;
Acked-by: Petr Pavlu &lt;petr.pavlu@suse.com&gt;
Signed-off-by: Alvin Sun &lt;alvin.sun@linux.dev&gt;
Link: https://patch.msgid.link/20260811-fix-fops-owner-v10-2-7e71776f9dbe@linux.dev
Signed-off-by: Miguel Ojeda &lt;ojeda@kernel.org&gt;
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
Since `const_refs_to_static` has been stable as of the MSRV bump, a
`ThisModule` pointer can now be used in const contexts.

Add a `THIS_MODULE` const to the `ModuleMetadata` trait so that modules
can provide their `ThisModule` pointer in const contexts such as static
`file_operations`.

Add a `this_module()` helper to retrieve the `THIS_MODULE` pointer of a
given module type, and update `__init` to use it instead of the
`THIS_MODULE` static generated by the `module!` macro.

The `static THIS_MODULE` generated by the `module!` macro is retained
for backwards compatibility with existing users and removed in a later
patch once all references have been migrated.

Assisted-by: opencode:glm-5.2
Reviewed-by: Andreas Hindborg &lt;a.hindborg@kernel.org&gt;
Reviewed-by: Gary Guo &lt;gary@garyguo.net&gt;
Acked-by: Danilo Krummrich &lt;dakr@kernel.org&gt;
Reviewed-by: Alice Ryhl &lt;aliceryhl@google.com&gt;
Acked-by: Petr Pavlu &lt;petr.pavlu@suse.com&gt;
Signed-off-by: Alvin Sun &lt;alvin.sun@linux.dev&gt;
Link: https://patch.msgid.link/20260811-fix-fops-owner-v10-2-7e71776f9dbe@linux.dev
Signed-off-by: Miguel Ojeda &lt;ojeda@kernel.org&gt;
</pre>
</div>
</content>
</entry>
<entry>
<title>rust: module_param: support bool parameters</title>
<updated>2026-08-06T11:29:03+00:00</updated>
<author>
<name>Wenzhao Liao</name>
<email>wenzhaoliao@ruc.edu.cn</email>
</author>
<published>2026-04-11T13:02:54+00:00</published>
<link rel='alternate' type='text/html' href='https://git.tavy.me/linux-stable.git/commit/?id=da991304c9afc0f1567033ac743ce27dcc947652'/>
<id>da991304c9afc0f1567033ac743ce27dcc947652</id>
<content type='text'>
Add support for parsing boolean module parameters in the Rust
module! macro.

Currently, only integer types are supported by the `module_param!`
macros. This patch implements the `ModuleParam` trait for `bool`
by delegating the string parsing to the existing C implementation
via `kstrtobool_bytes()`. It also wires up `PARAM_OPS_BOOL` so that
the Rust parameter system correctly links to the C `param_ops_bool`
structure.

For demonstration and verification, a boolean parameter is added
to `samples/rust/rust_minimal.rs`.

Support for boolean parameters will initially be used by the Rust
null block driver [1].

Link: https://lore.kernel.org/all/20260609-rnull-v6-19-rc5-send-v2-4-82c7404542e2@kernel.org/ [1]
Assisted-by: Codex:GPT-5
Signed-off-by: Wenzhao Liao &lt;wenzhaoliao@ruc.edu.cn&gt;
Tested-by: Andreas Hindborg &lt;a.hindborg@kernel.org&gt;
Reviewed-by: Andreas Hindborg &lt;a.hindborg@kernel.org&gt;
Link: https://lore.kernel.org/linux-modules/20260411130254.3510128-1-wenzhaoliao@ruc.edu.cn/
[ppavlu: add motivation to the commit message and rebase the patch]
Signed-off-by: Petr Pavlu &lt;petr.pavlu@suse.com&gt;
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
Add support for parsing boolean module parameters in the Rust
module! macro.

Currently, only integer types are supported by the `module_param!`
macros. This patch implements the `ModuleParam` trait for `bool`
by delegating the string parsing to the existing C implementation
via `kstrtobool_bytes()`. It also wires up `PARAM_OPS_BOOL` so that
the Rust parameter system correctly links to the C `param_ops_bool`
structure.

For demonstration and verification, a boolean parameter is added
to `samples/rust/rust_minimal.rs`.

Support for boolean parameters will initially be used by the Rust
null block driver [1].

Link: https://lore.kernel.org/all/20260609-rnull-v6-19-rc5-send-v2-4-82c7404542e2@kernel.org/ [1]
Assisted-by: Codex:GPT-5
Signed-off-by: Wenzhao Liao &lt;wenzhaoliao@ruc.edu.cn&gt;
Tested-by: Andreas Hindborg &lt;a.hindborg@kernel.org&gt;
Reviewed-by: Andreas Hindborg &lt;a.hindborg@kernel.org&gt;
Link: https://lore.kernel.org/linux-modules/20260411130254.3510128-1-wenzhaoliao@ruc.edu.cn/
[ppavlu: add motivation to the commit message and rebase the patch]
Signed-off-by: Petr Pavlu &lt;petr.pavlu@suse.com&gt;
</pre>
</div>
</content>
</entry>
<entry>
<title>rust: treewide: replace `__pinned_init` with `raw_[try_]init`</title>
<updated>2026-08-05T10:36:18+00:00</updated>
<author>
<name>Gary Guo</name>
<email>gary@garyguo.net</email>
</author>
<published>2026-07-29T15:38:46+00:00</published>
<link rel='alternate' type='text/html' href='https://git.tavy.me/linux-stable.git/commit/?id=ea7da3116015de801840f3e011dee907fb118f0c'/>
<id>ea7da3116015de801840f3e011dee907fb118f0c</id>
<content type='text'>
The `__init` method is not designed to be a public API (existence of "__"
is a hint for this); replace users with `pin_init::raw_[try_]init` which
does the same thing.

There are a few users of `__init` which are replaced as well.

Acked-by: Miguel Ojeda &lt;ojeda@kernel.org&gt;
Acked-by: Danilo Krummrich &lt;dakr@kernel.org&gt;
Link: https://patch.msgid.link/20260729-merge-init-v2-4-26adf47109e7@garyguo.net
Signed-off-by: Gary Guo &lt;gary@garyguo.net&gt;
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
The `__init` method is not designed to be a public API (existence of "__"
is a hint for this); replace users with `pin_init::raw_[try_]init` which
does the same thing.

There are a few users of `__init` which are replaced as well.

Acked-by: Miguel Ojeda &lt;ojeda@kernel.org&gt;
Acked-by: Danilo Krummrich &lt;dakr@kernel.org&gt;
Link: https://patch.msgid.link/20260729-merge-init-v2-4-26adf47109e7@garyguo.net
Signed-off-by: Gary Guo &lt;gary@garyguo.net&gt;
</pre>
</div>
</content>
</entry>
<entry>
<title>rust: types: introduce ForLt base trait for CovariantForLt</title>
<updated>2026-07-11T17:42:03+00:00</updated>
<author>
<name>Danilo Krummrich</name>
<email>dakr@kernel.org</email>
</author>
<published>2026-06-26T18:36:09+00:00</published>
<link rel='alternate' type='text/html' href='https://git.tavy.me/linux-stable.git/commit/?id=1b56056294d45162325bb491f0356fbc6b473a12'/>
<id>1b56056294d45162325bb491f0356fbc6b473a12</id>
<content type='text'>
Add a new ForLt trait as a base for CovariantForLt:

  - ForLt (non-unsafe): represents a type generic over a lifetime, with
    no covariance guarantee.

  - CovariantForLt (unsafe): becomes a subtrait of ForLt that
    additionally proves the type is covariant over its lifetime
    parameter, providing a safe cast_ref() method.

This split allows non-covariant types (e.g. types behind a Mutex) to
implement ForLt and participate in DevresLt / registration data patterns
that use HRTB closures for sound access, without requiring a covariance
proof that would fail to compile.

Both macros share the UnsafeForLtImpl helper type, distinguished by
a const generic N: ForLt! emits N = 0 (no covariance proof),
CovariantForLt! emits N = 1 (with compile-time covariance proof).

Reviewed-by: Gary Guo &lt;gary@garyguo.net&gt;
Acked-by: Miguel Ojeda &lt;ojeda@kernel.org&gt;
Link: https://patch.msgid.link/20260626183630.2585057-3-dakr@kernel.org
[ Merge ForLt pub use, inline resolve_hrt/ty_static, add intra-doc
  links. - Danilo ]
Signed-off-by: Danilo Krummrich &lt;dakr@kernel.org&gt;
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
Add a new ForLt trait as a base for CovariantForLt:

  - ForLt (non-unsafe): represents a type generic over a lifetime, with
    no covariance guarantee.

  - CovariantForLt (unsafe): becomes a subtrait of ForLt that
    additionally proves the type is covariant over its lifetime
    parameter, providing a safe cast_ref() method.

This split allows non-covariant types (e.g. types behind a Mutex) to
implement ForLt and participate in DevresLt / registration data patterns
that use HRTB closures for sound access, without requiring a covariance
proof that would fail to compile.

Both macros share the UnsafeForLtImpl helper type, distinguished by
a const generic N: ForLt! emits N = 0 (no covariance proof),
CovariantForLt! emits N = 1 (with compile-time covariance proof).

Reviewed-by: Gary Guo &lt;gary@garyguo.net&gt;
Acked-by: Miguel Ojeda &lt;ojeda@kernel.org&gt;
Link: https://patch.msgid.link/20260626183630.2585057-3-dakr@kernel.org
[ Merge ForLt pub use, inline resolve_hrt/ty_static, add intra-doc
  links. - Danilo ]
Signed-off-by: Danilo Krummrich &lt;dakr@kernel.org&gt;
</pre>
</div>
</content>
</entry>
<entry>
<title>rust: types: rename ForLt to CovariantForLt</title>
<updated>2026-07-11T16:35:47+00:00</updated>
<author>
<name>Danilo Krummrich</name>
<email>dakr@kernel.org</email>
</author>
<published>2026-06-26T18:36:08+00:00</published>
<link rel='alternate' type='text/html' href='https://git.tavy.me/linux-stable.git/commit/?id=2c91f57e81a7ece7b0b83e93462558f661055963'/>
<id>2c91f57e81a7ece7b0b83e93462558f661055963</id>
<content type='text'>
Rename ForLt to CovariantForLt to prepare for the introduction of a new
ForLt base trait that does not require covariance.

The existing ForLt trait requires covariance, which enables the safe
cast_ref() method. This rename preserves the same semantics under a more
precise name, making room for a weaker ForLt trait in a subsequent
commit.

No functional change.

Reviewed-by: Alexandre Courbot &lt;acourbot@nvidia.com&gt;
Reviewed-by: Gary Guo &lt;gary@garyguo.net&gt;
Acked-by: Miguel Ojeda &lt;ojeda@kernel.org&gt;
Link: https://patch.msgid.link/20260626183630.2585057-2-dakr@kernel.org
Signed-off-by: Danilo Krummrich &lt;dakr@kernel.org&gt;
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
Rename ForLt to CovariantForLt to prepare for the introduction of a new
ForLt base trait that does not require covariance.

The existing ForLt trait requires covariance, which enables the safe
cast_ref() method. This rename preserves the same semantics under a more
precise name, making room for a weaker ForLt trait in a subsequent
commit.

No functional change.

Reviewed-by: Alexandre Courbot &lt;acourbot@nvidia.com&gt;
Reviewed-by: Gary Guo &lt;gary@garyguo.net&gt;
Acked-by: Miguel Ojeda &lt;ojeda@kernel.org&gt;
Link: https://patch.msgid.link/20260626183630.2585057-2-dakr@kernel.org
Signed-off-by: Danilo Krummrich &lt;dakr@kernel.org&gt;
</pre>
</div>
</content>
</entry>
<entry>
<title>rust: types: add `ForLt` trait for higher-ranked lifetime support</title>
<updated>2026-05-27T14:24:59+00:00</updated>
<author>
<name>Gary Guo</name>
<email>gary@garyguo.net</email>
</author>
<published>2026-05-25T20:21:09+00:00</published>
<link rel='alternate' type='text/html' href='https://git.tavy.me/linux-stable.git/commit/?id=e189bdb687a56bcf389798f1d3a2f261fff2ef54'/>
<id>e189bdb687a56bcf389798f1d3a2f261fff2ef54</id>
<content type='text'>
There are a few cases, e.g. when dealing with data referencing each
other, one might want to write code that is generic over lifetimes. For
example, if you want to take a function that takes `&amp;'a Foo` and gives
`Bar&lt;'a&gt;`, you can write:

    f: impl for&lt;'a&gt; FnOnce(&amp;'a Foo) -&gt; Bar&lt;'a&gt;,

However, it becomes tricky when you want that function to not have a
fixed `Bar`, but have it be generic again. In this case, one needs
something that is generic over types that are themselves generic over
lifetimes.

`ForLt` provides such support. It provides a trait `ForLt` which
describes a type generic over a lifetime. One may use `ForLt::Of&lt;'a&gt;` to
get an instance of a type for a specific lifetime.

For the case of cross referencing, one would almost always want the
lifetime to be covariant. Therefore this is also made a requirement for
the `ForLt` trait, so functions with `ForLt` trait bound can assume
covariance.

A macro `ForLt!()` is provided to be able to obtain a type that
implements `ForLt`. For example, `ForLt!(for&lt;'a&gt; Bar&lt;'a&gt;)` would yield a
type that `&lt;TheType as ForLt&gt;::Of&lt;'a&gt;` is `Bar&lt;'a&gt;`. This also works
with lifetime elision, e.g. `ForLt!(Bar&lt;'_&gt;)` or for types without
lifetime at all, e.g. `ForLt!(u32)`.

The API design draws inspiration from the higher-kinded-types [1] crate,
however a different design decision has been taken (e.g. covariance
requirement) and the implementation is independent.

License headers use "Apache-2.0 OR MIT" because I anticipate this to be
used in pin-init crate too which is licensed as such.

Link: https://docs.rs/higher-kinded-types/ [1]
Reviewed-by: Greg Kroah-Hartman &lt;gregkh@linuxfoundation.org&gt;
Reviewed-by: Eliot Courtney &lt;ecourtney@nvidia.com&gt;
Signed-off-by: Gary Guo &lt;gary@garyguo.net&gt;
Acked-by: Miguel Ojeda &lt;ojeda@kernel.org&gt;
Reviewed-by: Alexandre Courbot &lt;acourbot@nvidia.com&gt;
Link: https://patch.msgid.link/20260525202921.124698-23-dakr@kernel.org
[ Handle macro_rules! invocations in the ForLt! proc macro's covariance
  and WF checks. Since proc macros cannot expand macro_rules!, add a
  visit_macro() implementation to conservatively assume macro
  invocations may contain lifetimes, forcing them through the
  compiler-assisted covariance proof.

  Fix a few typos in the documentation and in the commit message, add
  empty lines before samples, add missing periods and consistently use
  markdown.

  - Danilo ]
Signed-off-by: Danilo Krummrich &lt;dakr@kernel.org&gt;
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
There are a few cases, e.g. when dealing with data referencing each
other, one might want to write code that is generic over lifetimes. For
example, if you want to take a function that takes `&amp;'a Foo` and gives
`Bar&lt;'a&gt;`, you can write:

    f: impl for&lt;'a&gt; FnOnce(&amp;'a Foo) -&gt; Bar&lt;'a&gt;,

However, it becomes tricky when you want that function to not have a
fixed `Bar`, but have it be generic again. In this case, one needs
something that is generic over types that are themselves generic over
lifetimes.

`ForLt` provides such support. It provides a trait `ForLt` which
describes a type generic over a lifetime. One may use `ForLt::Of&lt;'a&gt;` to
get an instance of a type for a specific lifetime.

For the case of cross referencing, one would almost always want the
lifetime to be covariant. Therefore this is also made a requirement for
the `ForLt` trait, so functions with `ForLt` trait bound can assume
covariance.

A macro `ForLt!()` is provided to be able to obtain a type that
implements `ForLt`. For example, `ForLt!(for&lt;'a&gt; Bar&lt;'a&gt;)` would yield a
type that `&lt;TheType as ForLt&gt;::Of&lt;'a&gt;` is `Bar&lt;'a&gt;`. This also works
with lifetime elision, e.g. `ForLt!(Bar&lt;'_&gt;)` or for types without
lifetime at all, e.g. `ForLt!(u32)`.

The API design draws inspiration from the higher-kinded-types [1] crate,
however a different design decision has been taken (e.g. covariance
requirement) and the implementation is independent.

License headers use "Apache-2.0 OR MIT" because I anticipate this to be
used in pin-init crate too which is licensed as such.

Link: https://docs.rs/higher-kinded-types/ [1]
Reviewed-by: Greg Kroah-Hartman &lt;gregkh@linuxfoundation.org&gt;
Reviewed-by: Eliot Courtney &lt;ecourtney@nvidia.com&gt;
Signed-off-by: Gary Guo &lt;gary@garyguo.net&gt;
Acked-by: Miguel Ojeda &lt;ojeda@kernel.org&gt;
Reviewed-by: Alexandre Courbot &lt;acourbot@nvidia.com&gt;
Link: https://patch.msgid.link/20260525202921.124698-23-dakr@kernel.org
[ Handle macro_rules! invocations in the ForLt! proc macro's covariance
  and WF checks. Since proc macros cannot expand macro_rules!, add a
  visit_macro() implementation to conservatively assume macro
  invocations may contain lifetimes, forcing them through the
  compiler-assisted covariance proof.

  Fix a few typos in the documentation and in the commit message, add
  empty lines before samples, add missing periods and consistently use
  markdown.

  - Danilo ]
Signed-off-by: Danilo Krummrich &lt;dakr@kernel.org&gt;
</pre>
</div>
</content>
</entry>
</feed>
