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3bd0b15281
This patch builds on top of the previous patch in the patchset, which added BPF_LWT_ENCAP_IP mode to bpf_lwt_push_encap. As the encapping can result in the skb needing to go via a different interface/route/dst, bpf programs can indicate this by returning BPF_LWT_REROUTE, which triggers a new route lookup for the skb. v8 changes: fix kbuild errors when LWTUNNEL_BPF is builtin, but IPV6 is a module: as LWTUNNEL_BPF can only be either Y or N, call IPV6 routing functions only if they are built-in. v9 changes: - fixed a kbuild test robot compiler warning; - call IPV6 routing functions via ipv6_stub. v10 changes: removed unnecessary IS_ENABLED and pr_warn_once. v11 changes: fixed a potential dst leak. Signed-off-by: Peter Oskolkov <posk@google.com> Signed-off-by: Alexei Starovoitov <ast@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.