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In more complex cases, initializers need to run arbitrary code before
assigning initializers to fields. While this is possible using the
underscore codeblock feature (`_: {}`), values returned by such
functions cannot be used from later field initializers.
The two new functions `[pin_]init_scope` allow users to first run some
fallible code and then return an initializer which the function turns
into a single initializer. This permits using the same value multiple
times by different fields.
Reviewed-by: Gary Guo <gary@garyguo.net>
Reviewed-by: Danilo Krummrich <dakr@kernel.org>
Signed-off-by: Benno Lossin <lossin@kernel.org>
Reviewed-by: Alice Ryhl <aliceryhl@google.com>
[ Fix typo in commit message: s/functinos/functions/. - Danilo ]
Signed-off-by: Danilo Krummrich <dakr@kernel.org>
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.