netfilter: nf_ct_sip: consolidate NAT hook functions
authorholger@eitzenberger.org <holger@eitzenberger.org>
Mon, 30 Sep 2013 15:07:28 +0000 (17:07 +0200)
committerPablo Neira Ayuso <pablo@netfilter.org>
Tue, 1 Oct 2013 10:47:09 +0000 (12:47 +0200)
commit180cf72f56fab2810e00497c087c7126bfe53c85
treee55b1aa0ec9bc00b896b75423aa262d32e8231de
parentafff14f6089ac50f05f29e489c5b2a067077d560
netfilter: nf_ct_sip: consolidate NAT hook functions

There are currently seven different NAT hooks used in both
nf_conntrack_sip and nf_nat_sip, each of the hooks is exported in
nf_conntrack_sip, then set from the nf_nat_sip NAT helper.

And because each of them is exported there is quite some overhead
introduced due of this.

By introducing nf_nat_sip_hooks I am able to reduce both text/data
somewhat.  For nf_conntrack_sip e. g. I get

        text             data              bss              dec
old    15243             5256               32            20531
new    15010             5192               32            20234

Signed-off-by: Holger Eitzenberger <holger@eitzenberger.org>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
include/linux/netfilter/nf_conntrack_sip.h
net/netfilter/nf_conntrack_sip.c
net/netfilter/nf_nat_sip.c