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Previously, if rst2man caught errors, then these would be ignored and the output file would be written anyway. This would allow developers to introduce regressions in the docs comments in the BPF headers. Additionally, even if you instruct rst2man to fail out, it will still write out to the destination target file, so if you ran the tests twice in a row it would always pass. Use a temporary file for the initial run to ensure that if rst2man fails out under "--strict" mode, subsequent runs will not automatically pass. Tested via ./tools/testing/selftests/bpf/test_doc_build.sh Signed-off-by: Joe Stringer <joe@cilium.io> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net> Reviewed-by: Quentin Monnet <quentin@isovalent.com> Link: https://lore.kernel.org/bpf/20210608015756.340385-1-joe@cilium.io
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.