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[ Upstream commit8955c1a329] As I want to test both DEVMAP and DEVMAP_HASH in XDP multicast redirect, I limited DEVMAP max entries to a small value for performace. When the test runs after amount of interface creating/deleting tests. The interface index will exceed the map max entries and xdp_redirect_multi will error out with "Get interfacesInterface index to large". Fix this issue by limit the tests in netns and specify the ifindex when creating interfaces. Fixes:d232924762("selftests/bpf: Add xdp_redirect_multi test") Reported-by: Jiri Benc <jbenc@redhat.com> Signed-off-by: Hangbin Liu <liuhangbin@gmail.com> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net> Link: https://lore.kernel.org/bpf/20211027033553.962413-5-liuhangbin@gmail.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.