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[ Upstream commit79e2c30666] It's not enough to set net.ipv4.conf.all.rp_filter=0, that does not override a greater rp_filter value on the individual interfaces. We also need to set net.ipv4.conf.default.rp_filter=0 before creating the interfaces. That way, they'll also get their own rp_filter value of zero. Fixes:0fde56e438("selftests: bpf: add test_lwt_ip_encap selftest") Signed-off-by: Jiri Benc <jbenc@redhat.com> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net> Link: https://lore.kernel.org/bpf/b1cdd9d469f09ea6e01e9c89a6071c79b7380f89.1632386362.git.jbenc@redhat.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.