[PATCH v3 0/4] add `const_assert!` macro and rework documentation

[Gary Guo <gary@kernel.org>]

From: Gary Guo <gary@garyguo.net>

This adds the `const_assert!` macro, rework documentation of all
build-time assertion macros to live under `build_assert` module, and
make that the canonical path to refer to these macros.

The Rust documentation rendering side can be tested out with `make
rustdoc` command.

Changes since v2:
- Rebased on top of latest linux-next to pick up `register!` changes
- Drop the unintended removal of `#[inline(always)]` doc on
  `build_assert!` (Sashiko)
- Remove imports covered by prelude (Danilo)
- Fix references in Nova and new `register!` macro
- Link to v2: https://lore.kernel.org/rust-for-linux/20260316150720.1646109-1-gary@kernel.org/

Changes since v1:
- Completely overhaul of the documentation
- Make `kernel::build_assert` the canonical path to refer to related macros
- Link to v1: https://lore.kernel.org/rust-for-linux/20260206171253.2704684-1-gary@kernel.org/

Cc: Yury Norov <ynorov@nvidia.com>

Gary Guo (4):
  rust: move `static_assert` into `build_assert`
  rust: add `const_assert!` macro
  rust: rework `build_assert!` documentation
  rust: make `build_assert` module the home of related macros

 drivers/gpu/nova-core/bitfield.rs    |   4 +-
 drivers/gpu/nova-core/num.rs         |   2 +-
 rust/kernel/build_assert.rs          | 200 ++++++++++++++++++++++-----
 rust/kernel/dma.rs                   |   5 +-
 rust/kernel/io/register.rs           |  19 ++-
 rust/kernel/io/resource.rs           |   2 +-
 rust/kernel/ioctl.rs                 |   2 +-
 rust/kernel/lib.rs                   |   2 -
 rust/kernel/net/phy/reg.rs           |   8 +-
 rust/kernel/num/bounded.rs           |  26 ++--
 rust/kernel/prelude.rs               |  10 +-
 rust/kernel/ptr.rs                   |  12 +-
 rust/kernel/static_assert.rs         |  39 ------
 rust/kernel/sync/atomic/internal.rs  |   9 +-
 rust/kernel/sync/atomic/predefine.rs |   2 +-
 rust/kernel/sync/locked_by.rs        |   2 +-
 rust/kernel/sync/refcount.rs         |   8 +-
 rust/kernel/xarray.rs                |  10 +-
 scripts/Makefile.build               |   5 +-
 19 files changed, 236 insertions(+), 131 deletions(-)
 delete mode 100644 rust/kernel/static_assert.rs


base-commit: 8e42d2514a7e8eb8d740d0ba82339dd6c0b6463f
-- 
2.51.2