tree a1ca3ce2d168dc58db17fd0c4f1beefe36685f0c
parent 625c556118f3c2fd28bb8ef6da18c53bd4037be4
author Pablo Neira Ayuso <pablo@netfilter.org> 1511816114 +0100
committer Pablo Neira Ayuso <pablo@netfilter.org> 1515430883 +0100

netfilter: move checksum indirection to struct nf_ipv6_ops

We cannot make a direct call to nf_ip6_checksum() because that would
result in autoloading the 'ipv6' module because of symbol dependencies.
Therefore, define checksum indirection in nf_ipv6_ops where this really
belongs to.

For IPv4, we can indeed make a direct function call, which is faster,
given IPv4 is built-in in the networking code by default. Still,
CONFIG_INET=n and CONFIG_NETFILTER=y is possible, so define empty inline
stub for IPv4 in such case.

Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>