[GIT PULL] pin-init changes for v7.3-rc1

[Gary Guo <gary@kernel.org>]

Hi Miguel,

Still more of refactors this cycle and not much feature updates. Tuple struct
still doesn't made it as there are some complexity related to `#[cfg]`s, but
the cfg-related internal refactoring are picked so hopefully we can land it the
next one.

I did a late rebase today to rename the API based on Benno's feedback. It does
made it into today's linux-next (2026-08-05). Feel free to wait for a few more
rounds before pulling if you see fit.

Best,
Gary

The following changes since commit a13c140cc289c0b7b3770bce5b3ad42ab35074aa:

  Linux 7.2-rc3 (2026-07-12 14:16:39 -0700)

are available in the Git repository at:

  https://github.com/Rust-for-Linux/linux.git tags/pin-init-v7.3

for you to fetch changes up to 1e26aea0355ad2afa1ccbc62885c01f5bcfc58ca:

  rust: pin-init: add `#[inline]` to small functions (2026-08-05 11:36:18 +0100)

----------------------------------------------------------------
User visible changes:

- Merge the `__pinned_init` and `__init` methods and make `Init` become a marker trait.

- Introduce public APIs `raw_init` and `raw_try_init` to prevent user from needing to invoke the internal `__pinned_init`/`__init` methods.

- Emit errors for duplicate `#[pin]` attributes.

- Link `Zeroable::zeroed` and `pin_init::zeroed` in documentation.

Other changes:

- Fix unwind safety issues.

- Clean up lint `allow` and `expect`s.

- Overhaul `#[cfg]` handling to pave the way for tuple struct and self referential structs.

- Mark many functions are `#[inline]` for better codegen with `-C opt-level=s` (CC_OPTIMIZE_FOR_SIZE).

----------------------------------------------------------------
Gary Guo (11):
      rust: pin-init: examples: fix incorrect drop
      rust: pin-init: remove redundant clippy expects in doc tests
      rust: pin-init: internal: remove `allow` and `expect`s that don't fire
      rust: pin-init: internal: generate brace in macro for init code blocks
      rust: pin-init: internal: rework how `#[pin_data]` handles cfg
      rust: pin-init: examples: use `Wrapper::pin_init` instead of manual reimplementation
      rust: pin-init: merge `__pinned_init` and `__init`
      rust: pin-init: add `raw_init` and `raw_try_init` and recommend over `__init`
      rust: treewide: replace `__pinned_init` with `raw_[try_]init`
      rust: pin-init: remove `__pinned_init` method for `cfg(kernel)`
      rust: pin-init: add `#[inline]` to small functions

Luiz Georg (1):
      rust: pin-init: internal: error on duplicate `#[pin]` attribute

Mirko Adzic (2):
      rust: pin-init: make `[pin_]init_array_from_fn` unwind safe
      rust: pin-init: make `[pin_]chain` unwind safe

Nicolás Antinori (2):
      rust: pin-init: docs: link `Zeroable::zeroed` and `pin_init::zeroed` in documentation
      rust: pin-init: mark `pin_init::zeroed` and `Zeroable::zeroed` as `#[inline]`

 drivers/gpu/nova-core/gsp/cmdq.rs      |   4 +-
 rust/kernel/alloc/kbox.rs              |   8 +-
 rust/kernel/dma.rs                     |  10 +-
 rust/kernel/drm/device.rs              |   2 +-
 rust/kernel/drm/gpuvm/va.rs            |   2 +-
 rust/kernel/drm/gpuvm/vm_bo.rs         |   2 +-
 rust/kernel/init.rs                    |   6 +-
 rust/kernel/pwm.rs                     |   2 +-
 rust/kernel/sync/arc.rs                |   8 +-
 rust/kernel/types.rs                   |   8 +-
 rust/macros/module.rs                  |   2 +-
 rust/pin-init/examples/mutex.rs        |  11 +-
 rust/pin-init/examples/static_init.rs  |  10 +-
 rust/pin-init/internal/src/init.rs     |   8 +-
 rust/pin-init/internal/src/pin_data.rs |  94 +++++++---
 rust/pin-init/src/__internal.rs        |  13 +-
 rust/pin-init/src/alloc.rs             |  10 +-
 rust/pin-init/src/lib.rs               | 333 +++++++++++++++++++--------------
 18 files changed, 319 insertions(+), 214 deletions(-)