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James Seo
4d744ce9d5
Add kerneldocs for ERR_PTR(), PTR_ERR(), PTR_ERR_OR_ZERO(), IS_ERR(), and IS_ERR_OR_NULL(). Doing so will help convert hundreds of mentions of them in existing documentation into automatic cross-references. Also add kerneldocs for IS_ERR_VALUE(). Doing so adds no automatic cross-references, but this macro has a slightly different use case than the functionally similar IS_ERR(), and documenting it may be helpful to readers who encounter it in existing code. ERR_CAST() already has kerneldocs and has not been touched. Signed-off-by: James Seo <james@equiv.tech> Signed-off-by: Jonathan Corbet <corbet@lwn.net> Link: https://lore.kernel.org/r/20230509175543.2065835-3-james@equiv.tech
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 Restructured Text 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.