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7b53eaa656
Previously [1], we were using bpf_probe_prog_type which returned a bool, but the new libbpf_probe_bpf_prog_type can return a negative error code on failure. This change decides for bpftool to declare a program type is not available on probe failure. [1] https://lore.kernel.org/bpf/20220202225916.3313522-3-andrii@kernel.org/ Signed-off-by: Milan Landaverde <milan@mdaverde.com> Signed-off-by: Andrii Nakryiko <andrii@kernel.org> Reviewed-by: Quentin Monnet <quentin@isovalent.com> Link: https://lore.kernel.org/bpf/20220331154555.422506-4-milan@mdaverde.com
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.