bpf, net: add skb_mac_header_len helper

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Add a small skb_mac_header_len() helper similarly as the
skb_network_header_len() we have and replace open coded
places in BPF's bpf_skb_change_proto() helper. Will also
be used in upcoming work.

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

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Daniel Borkmann 2017-07-02 02:13:25 +02:00 • committed by David S. Miller

parent a68491f895

commit 0daf434940

2 changed files with 7 additions and 2 deletions

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include/linux/skbuff.h

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