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Traits marked with `#[vtable]` need to provide default implementations for optional functions. The C side represents these with `NULL` in the vtable, so the default functions are never actually called. We do not want to replicate the default behavior from C in Rust, because that is not maintainable. Therefore we should use `build_error` in those default implementations. The error message for that is provided at `kernel::error::VTABLE_DEFAULT_ERROR`. Signed-off-by: Benno Lossin <benno.lossin@proton.me> Reviewed-by: Martin Rodriguez Reboredo <yakoyoku@gmail.com> Reviewed-by: Andreas Hindborg <a.hindborg@samsung.com> Reviewed-by: Alice Ryhl <aliceryhl@google.com> Reviewed-by: Finn Behrens <me@kloenk.dev> Link: https://lore.kernel.org/r/20231026201855.1497680-1-benno.lossin@proton.me [ Wrapped paragraph to 80 as requested and capitalized sentence. ] Signed-off-by: Miguel Ojeda <ojeda@kernel.org> |
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| alloc | ||
| bindings | ||
| kernel | ||
| macros | ||
| uapi | ||
| .gitignore | ||
| bindgen_parameters | ||
| build_error.rs | ||
| compiler_builtins.rs | ||
| exports.c | ||
| helpers.c | ||
| Makefile | ||