add audio

hc

2023-12-11 1f93a7dfd1f8d5ff7a5c53246c7534fe2332d6f4

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WARNING:
If you change "iterators.bpf.c" do "make -j" in this directory to rebuild "iterators.skel.h".
Make sure to have clang 10 installed.
See Documentation/bpf/bpf_devel_QA.rst