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Tony Ambardar fe81b3df3c selftests/bpf: Fix compiling flow_dissector.c with musl-libc 
[ Upstream commit 5e4c43bcb8 ]

The GNU version of 'struct tcphdr' has members 'doff', 'source' and 'dest',
which are not exposed by musl libc headers unless _GNU_SOURCE is defined.

Add this definition to fix errors seen compiling for mips64el/musl-libc:

  flow_dissector.c:118:30: error: 'struct tcphdr' has no member named 'doff'
    118 |                         .tcp.doff = 5,
        |                              ^~~~
  flow_dissector.c:119:30: error: 'struct tcphdr' has no member named 'source'
    119 |                         .tcp.source = 80,
        |                              ^~~~~~
  flow_dissector.c:120:30: error: 'struct tcphdr' has no member named 'dest'
    120 |                         .tcp.dest = 8080,
        |                              ^~~~

Fixes: ae173a9157 ("selftests/bpf: support BPF_FLOW_DISSECTOR_F_PARSE_1ST_FRAG")
Signed-off-by: Tony Ambardar <tony.ambardar@gmail.com>
Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Link: https://lore.kernel.org/bpf/8f7ab21a73f678f9cebd32b26c444a686e57414d.1721713597.git.tony.ambardar@gmail.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
History 2024-10-04 16:29:17 +02:00
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README 

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.