bpf: Document PROG_TEST_RUN limitations

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Per net/bpf/test_run.c, particular prog types have additional
restrictions around the parameters that can be provided, so document
these in the header.

I didn't bother documenting the limitation on duration for raw
tracepoints since that's an output parameter anyway.

Tested with ./tools/testing/selftests/bpf/test_doc_build.sh.

Suggested-by: Yonghong Song <yhs@fb.com>
Signed-off-by: Joe Stringer <joe@cilium.io>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: Yonghong Song <yhs@fb.com>
Acked-by: Lorenz Bauer <lmb@cloudflare.com>
Link: https://lore.kernel.org/bpf/20210410174549.816482-1-joe@cilium.io

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Joe Stringer 2021-04-10 10:45:48 -07:00 • committed by Daniel Borkmann

parent 92d3bff28a

commit f3c45326ee

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include/uapi/linux/bpf.h

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