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614724e780
Users were using the hidden exported `kernel::build_error` function
instead of the intended `kernel::build_error!` macro, e.g. see the
previous commit.
To force to use the macro, move it into the `build_assert` module,
thus making it a compilation error and avoiding a collision in the same
"namespace". Using the function now would require typing the module name
(which is hidden), not just a single character.
Now attempting to use the function will trigger this error with the
right suggestion by the compiler:
error[E0423]: expected function, found macro `kernel::build_error`
--> samples/rust/rust_minimal.rs:29:9
|
29 | kernel::build_error();
| ^^^^^^^^^^^^^^^^^^^ not a function
|
help: use `!` to invoke the macro
|
29 | kernel::build_error!();
| +
An alternative would be using an alias, but it would be more complex
and moving it into the module seems right since it belongs there and
reduces the amount of code at the crate root.
Keep the `#[doc(hidden)]` inside `build_assert` in case the module is
not hidden in the future.
Reviewed-by: Alice Ryhl <aliceryhl@google.com>
Link: https://lore.kernel.org/r/20241123222849.350287-2-ojeda@kernel.org
Signed-off-by: Miguel Ojeda <ojeda@kernel.org>
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Linux kernel
============
There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.
In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``. The formatted documentation can also be read online at:
https://www.kernel.org/doc/html/latest/
There are various text files in the Documentation/ subdirectory,
several of them using the reStructuredText markup notation.
Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.