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netfilter: kill nf_hooks_active 

The function obscures what is going on in nf_hook_thresh and it's existence
requires computing the hook list twice.

Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
This commit is contained in:
Eric W. Biederman 2015-07-10 18:13:20 -05:00 committed by Pablo Neira Ayuso
parent 0d6ef0688d
commit 70aa996601
1 changed files with 4 additions and 7 deletions
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11
include/linux/netfilter.h
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@ -150,11 +150,6 @@ static inline bool nf_hook_list_active(struct list_head *nf_hook_list,
}
#endif
static inline bool nf_hooks_active(u_int8_t pf, unsigned int hook)
{
return nf_hook_list_active(&nf_hooks[pf][hook], pf, hook);
}
int nf_hook_slow(struct sk_buff *skb, struct nf_hook_state *state);
/**
@ -172,10 +167,12 @@ static inline int nf_hook_thresh(u_int8_t pf, unsigned int hook,
int (*okfn)(struct sock *, struct sk_buff *),
int thresh)
{
if (nf_hooks_active(pf, hook)) {
struct list_head *nf_hook_list = &nf_hooks[pf][hook];
if (nf_hook_list_active(nf_hook_list, pf, hook)) {
struct nf_hook_state state;
nf_hook_state_init(&state, &nf_hooks[pf][hook], hook, thresh,
nf_hook_state_init(&state, nf_hook_list, hook, thresh,
pf, indev, outdev, sk, okfn);
return nf_hook_slow(skb, &state);
}