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Benno Lossin fc2b38de4c add [pin_]init_scope to execute code before creating an initializer
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>
History 2025-10-21 00:40:12 +02:00
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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.