tree c440172d23a281207f7307c1099165b592953efb
parent b351a0633e771676f94262a209ae28699eb26038
author Daniel Borkmann <daniel@iogearbox.net> 1452115936 +0100
committer David S. Miller <davem@davemloft.net> 1452307234 -0500

bpf: cleanup bpf_prog_run_{save,clear}_cb helpers

Move the details behind the cb[] access into a small helper to decouple
and make them generic for bpf_prog_run_save_cb()/bpf_prog_run_clear_cb()
that was introduced via commit ff936a04e5f2 ("bpf: fix cb access in socket
filter programs"). Also add a comment to better clarify what is done in
bpf_skb_cb().

Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: Alexei Starovoitov <ast@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>