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netfilter: conntrack: remove empty pernet fini stubs

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after moving sysctl handling into single place, the init functions
can't fail anymore and some of the fini functions are empty.

Remove them and change return type to void.
This also simplifies error unwinding in conntrack module init path.

Signed-off-by: Florian Westphal <fw@strlen.de>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
This commit is contained in:
Florian Westphal 2018-12-18 23:04:49 +01:00 committed by Pablo Neira Ayuso
parent cb2833ed00
commit fc3893fd5c
9 changed files with 16 additions and 62 deletions
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3
include/net/netfilter/nf_conntrack_acct.h
View File

@ -58,8 +58,7 @@ static inline void nf_ct_set_acct(struct net *net, bool enable)
net->ct.sysctl_acct = enable;
}
int nf_conntrack_acct_pernet_init(struct net *net);
void nf_conntrack_acct_pernet_fini(struct net *net);
void nf_conntrack_acct_pernet_init(struct net *net);
int nf_conntrack_acct_init(void);
void nf_conntrack_acct_fini(void);

7
include/net/netfilter/nf_conntrack_ecache.h
View File

@ -142,7 +142,7 @@ void nf_ct_expect_event_report(enum ip_conntrack_expect_events event,
struct nf_conntrack_expect *exp,
u32 portid, int report);
int nf_conntrack_ecache_pernet_init(struct net *net);
void nf_conntrack_ecache_pernet_init(struct net *net);
void nf_conntrack_ecache_pernet_fini(struct net *net);
int nf_conntrack_ecache_init(void);
@ -182,10 +182,7 @@ static inline void nf_ct_expect_event_report(enum ip_conntrack_expect_events e,
u32 portid,
int report) {}
static inline int nf_conntrack_ecache_pernet_init(struct net *net)
{
return 0;
}
static inline void nf_conntrack_ecache_pernet_init(struct net *net) {}
static inline void nf_conntrack_ecache_pernet_fini(struct net *net)
{

3
include/net/netfilter/nf_conntrack_helper.h
View File

@ -124,8 +124,7 @@ static inline void *nfct_help_data(const struct nf_conn *ct)
return (void *)help->data;
}
int nf_conntrack_helper_pernet_init(struct net *net);
void nf_conntrack_helper_pernet_fini(struct net *net);
void nf_conntrack_helper_pernet_init(struct net *net);
int nf_conntrack_helper_init(void);
void nf_conntrack_helper_fini(void);

13
include/net/netfilter/nf_conntrack_timestamp.h
View File

@ -49,21 +49,12 @@ static inline void nf_ct_set_tstamp(struct net *net, bool enable)
}
#ifdef CONFIG_NF_CONNTRACK_TIMESTAMP
int nf_conntrack_tstamp_pernet_init(struct net *net);
void nf_conntrack_tstamp_pernet_fini(struct net *net);
void nf_conntrack_tstamp_pernet_init(struct net *net);
int nf_conntrack_tstamp_init(void);
void nf_conntrack_tstamp_fini(void);
#else
static inline int nf_conntrack_tstamp_pernet_init(struct net *net)
{
return 0;
}
static inline void nf_conntrack_tstamp_pernet_fini(struct net *net)
{
return;
}
static inline void nf_conntrack_tstamp_pernet_init(struct net *net) {}
static inline int nf_conntrack_tstamp_init(void)
{

7
net/netfilter/nf_conntrack_acct.c
View File

@ -31,14 +31,9 @@ static const struct nf_ct_ext_type acct_extend = {
.id = NF_CT_EXT_ACCT,
};
int nf_conntrack_acct_pernet_init(struct net *net)
void nf_conntrack_acct_pernet_init(struct net *net)
{
net->ct.sysctl_acct = nf_ct_acct;
return 0;
}
void nf_conntrack_acct_pernet_fini(struct net *net)
{
}
int nf_conntrack_acct_init(void)

28
net/netfilter/nf_conntrack_core.c
View File

@ -2110,10 +2110,7 @@ void nf_conntrack_cleanup_net_list(struct list_head *net_exit_list)
list_for_each_entry(net, net_exit_list, exit_list) {
nf_conntrack_proto_pernet_fini(net);
nf_conntrack_helper_pernet_fini(net);
nf_conntrack_ecache_pernet_fini(net);
nf_conntrack_tstamp_pernet_fini(net);
nf_conntrack_acct_pernet_fini(net);
nf_conntrack_expect_pernet_fini(net);
free_percpu(net->ct.stat);
free_percpu(net->ct.pcpu_lists);
@ -2410,32 +2407,19 @@ int nf_conntrack_init_net(struct net *net)
ret = nf_conntrack_expect_pernet_init(net);
if (ret < 0)
goto err_expect;
ret = nf_conntrack_acct_pernet_init(net);
if (ret < 0)
goto err_acct;
ret = nf_conntrack_tstamp_pernet_init(net);
if (ret < 0)
goto err_tstamp;
ret = nf_conntrack_ecache_pernet_init(net);
if (ret < 0)
goto err_ecache;
ret = nf_conntrack_helper_pernet_init(net);
if (ret < 0)
goto err_helper;
nf_conntrack_acct_pernet_init(net);
nf_conntrack_tstamp_pernet_init(net);
nf_conntrack_ecache_pernet_init(net);
nf_conntrack_helper_pernet_init(net);
ret = nf_conntrack_proto_pernet_init(net);
if (ret < 0)
goto err_proto;
return 0;
err_proto:
nf_conntrack_helper_pernet_fini(net);
err_helper:
nf_conntrack_ecache_pernet_fini(net);
err_ecache:
nf_conntrack_tstamp_pernet_fini(net);
err_tstamp:
nf_conntrack_acct_pernet_fini(net);
err_acct:
nf_conntrack_expect_pernet_fini(net);
err_expect:
free_percpu(net->ct.stat);

3
net/netfilter/nf_conntrack_ecache.c
View File

@ -342,11 +342,10 @@ static const struct nf_ct_ext_type event_extend = {
.id = NF_CT_EXT_ECACHE,
};
int nf_conntrack_ecache_pernet_init(struct net *net)
void nf_conntrack_ecache_pernet_init(struct net *net)
{
net->ct.sysctl_events = nf_ct_events;
INIT_DELAYED_WORK(&net->ct.ecache_dwork, ecache_work);
return 0;
}
void nf_conntrack_ecache_pernet_fini(struct net *net)

7
net/netfilter/nf_conntrack_helper.c
View File

@ -472,15 +472,10 @@ static const struct nf_ct_ext_type helper_extend = {
.id = NF_CT_EXT_HELPER,
};
int nf_conntrack_helper_pernet_init(struct net *net)
void nf_conntrack_helper_pernet_init(struct net *net)
{
net->ct.auto_assign_helper_warned = false;
net->ct.sysctl_auto_assign_helper = nf_ct_auto_assign_helper;
return 0;
}
void nf_conntrack_helper_pernet_fini(struct net *net)
{
}
int nf_conntrack_helper_init(void)

7
net/netfilter/nf_conntrack_timestamp.c
View File

@ -28,14 +28,9 @@ static const struct nf_ct_ext_type tstamp_extend = {
.id = NF_CT_EXT_TSTAMP,
};
int nf_conntrack_tstamp_pernet_init(struct net *net)
void nf_conntrack_tstamp_pernet_init(struct net *net)
{
net->ct.sysctl_tstamp = nf_ct_tstamp;
return 0;
}
void nf_conntrack_tstamp_pernet_fini(struct net *net)
{
}
int nf_conntrack_tstamp_init(void)