Merge branch 'bpf-misc'

Daniel Borkmann says:

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Minor BPF follow-ups

Some minor last follow-ups I still had in my queue. The first one adds
readability support for __sk_buff's tc_classid member, the remaining
two are some minor cleanups. For details please see individual patches.
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Signed-off-by: David S. Miller <davem@davemloft.net>