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With a relatively recent clang master branch test_map skips a section, libbpf: elf: skipping unrecognized data section(5) .rodata.str1.1 the cause is some pointless strings from bpf_printks in the BPF program loaded during testing. After just removing the prints to fix above error Daniel points out the program is a bit pointless and could be simply the empty program returning SK_PASS. Here we do just that and return simply SK_PASS. This program is used with test_maps selftests to test insert/remove of a program into the sockmap and sockhash maps. Its not testing actual functionality of the TCP sockmap programs, these are tested from test_sockmap. So we shouldn't lose in test coverage and fix above warnings. This original test was added before test_sockmap existed and has been copied around ever since, clean it up now. Signed-off-by: John Fastabend <john.fastabend@gmail.com> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net> Acked-by: Song Liu <songliubraving@fb.com> Link: https://lore.kernel.org/bpf/161731595664.74613.1603087410166945302.stgit@john-XPS-13-9370
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.