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7284b4fbc8
Several functions require traversing menu entries sequentially. This commit introduces some helpers to simplify such operations. The menu_next() function facilitates depth-first traversal: 1. Descend to the child level if the current menu has one 2. Move to the next sibling at the same level if available 3. Ascend to the parent level if there is no more child or sibling The menu_for_each_sub_entry() macro iterates over all submenu entries using depth-first traverse. The menu_for_each_entry() macro is the same, but over all menu entries. Signed-off-by: Masahiro Yamada <masahiroy@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.