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[ Upstream commit4abdb1d5b2] test_xdp_adjust_tail_grow failed with ipv6: test_xdp_adjust_tail_grow:FAIL:ipv6 unexpected error: -28 (errno 28) The reason is that this test case tests ipv4 before ipv6, and when ipv4 test finished, topts.data_size_out was set to 54, which is smaller than the ipv6 output data size 114, so ipv6 test fails with NOSPC error. Fix it by reset topts.data_size_out to sizeof(buf) before testing ipv6. Fixes:04fcb5f9a1("selftests/bpf: Migrate from bpf_prog_test_run") Signed-off-by: Xu Kuohai <xukuohai@huawei.com> Signed-off-by: Andrii Nakryiko <andrii@kernel.org> Acked-by: Martin KaFai Lau <martin.lau@kernel.org> Link: https://lore.kernel.org/bpf/20221011120108.782373-6-xukuohai@huaweicloud.com Signed-off-by: Sasha Levin <sashal@kernel.org>
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.