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b238290b96
bpf_prog_test_run_xattr takes a struct __sk_buff, but did not permit that __skbuff to include an nonzero ingress_ifindex. This patch updates to allow ingress_ifindex, convert the __sk_buff field to sk_buff (skb_iif) and back, and tests that the value is present from on BPF program side. The test sets an unlikely distinct value for ingress_ifindex (11) from ifindex (1), which is in line with the rest of the synthetic field tests. Adding this support allows testing BPF that operates differently on incoming and outgoing skbs by discriminating on this field. Signed-off-by: Neil Spring <ntspring@fb.com> Signed-off-by: Andrii Nakryiko <andrii@kernel.org> Acked-by: John Fastabend <john.fastabend@gmail.com> Link: https://lore.kernel.org/bpf/20210831033356.1459316-1-ntspring@fb.com |
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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.