diff options
author | Patrick McHardy <kaber@trash.net> | 2007-02-12 22:14:28 +0300 |
---|---|---|
committer | David S. Miller <davem@davemloft.net> | 2007-02-12 22:14:28 +0300 |
commit | fe3eb20c1ace69e42e6ebf2afd2a904b2ae85cde (patch) | |
tree | 6c49ee94bc60c668aa3f02aa029e167f6669e031 | |
parent | 982d9a9ce389c396bc83ce29d799937f379ddcb7 (diff) | |
download | linux-fe3eb20c1ace69e42e6ebf2afd2a904b2ae85cde.tar.xz |
[NETFILTER]: nf_conntrack: change nf_conntrack_l[34]proto_unregister to void
No caller checks the return value, and since its usually called within the
module unload path there's nothing a module could do about errors anyway,
so BUG on invalid conditions and return void.
Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
-rw-r--r-- | include/net/netfilter/nf_conntrack_l3proto.h | 2 | ||||
-rw-r--r-- | include/net/netfilter/nf_conntrack_l4proto.h | 2 | ||||
-rw-r--r-- | net/netfilter/nf_conntrack_proto.c | 40 |
3 files changed, 9 insertions, 35 deletions
diff --git a/include/net/netfilter/nf_conntrack_l3proto.h b/include/net/netfilter/nf_conntrack_l3proto.h index ba760fe09b8a..eb575cbd4c95 100644 --- a/include/net/netfilter/nf_conntrack_l3proto.h +++ b/include/net/netfilter/nf_conntrack_l3proto.h @@ -89,7 +89,7 @@ extern struct nf_conntrack_l3proto *nf_ct_l3protos[AF_MAX]; /* Protocol registration. */ extern int nf_conntrack_l3proto_register(struct nf_conntrack_l3proto *proto); -extern int nf_conntrack_l3proto_unregister(struct nf_conntrack_l3proto *proto); +extern void nf_conntrack_l3proto_unregister(struct nf_conntrack_l3proto *proto); extern struct nf_conntrack_l3proto * nf_ct_l3proto_find_get(u_int16_t l3proto); diff --git a/include/net/netfilter/nf_conntrack_l4proto.h b/include/net/netfilter/nf_conntrack_l4proto.h index fc8af08ff542..8415182ec126 100644 --- a/include/net/netfilter/nf_conntrack_l4proto.h +++ b/include/net/netfilter/nf_conntrack_l4proto.h @@ -109,7 +109,7 @@ extern void nf_ct_l4proto_put(struct nf_conntrack_l4proto *p); /* Protocol registration. */ extern int nf_conntrack_l4proto_register(struct nf_conntrack_l4proto *proto); -extern int nf_conntrack_l4proto_unregister(struct nf_conntrack_l4proto *proto); +extern void nf_conntrack_l4proto_unregister(struct nf_conntrack_l4proto *proto); /* Generic netlink helpers */ extern int nf_ct_port_tuple_to_nfattr(struct sk_buff *skb, diff --git a/net/netfilter/nf_conntrack_proto.c b/net/netfilter/nf_conntrack_proto.c index 4dab3fa6e2bc..456155f05c75 100644 --- a/net/netfilter/nf_conntrack_proto.c +++ b/net/netfilter/nf_conntrack_proto.c @@ -215,22 +215,12 @@ out: } EXPORT_SYMBOL_GPL(nf_conntrack_l3proto_register); -int nf_conntrack_l3proto_unregister(struct nf_conntrack_l3proto *proto) +void nf_conntrack_l3proto_unregister(struct nf_conntrack_l3proto *proto) { - int ret = 0; - - if (proto->l3proto >= AF_MAX) { - ret = -EBUSY; - goto out; - } + BUG_ON(proto->l3proto >= AF_MAX); write_lock_bh(&nf_conntrack_lock); - if (nf_ct_l3protos[proto->l3proto] != proto) { - write_unlock_bh(&nf_conntrack_lock); - ret = -EBUSY; - goto out; - } - + BUG_ON(nf_ct_l3protos[proto->l3proto] != proto); rcu_assign_pointer(nf_ct_l3protos[proto->l3proto], &nf_conntrack_l3proto_generic); write_unlock_bh(&nf_conntrack_lock); @@ -240,9 +230,6 @@ int nf_conntrack_l3proto_unregister(struct nf_conntrack_l3proto *proto) /* Remove all contrack entries for this protocol */ nf_ct_iterate_cleanup(kill_l3proto, proto); - -out: - return ret; } EXPORT_SYMBOL_GPL(nf_conntrack_l3proto_unregister); @@ -368,27 +355,17 @@ out: } EXPORT_SYMBOL_GPL(nf_conntrack_l4proto_register); -int nf_conntrack_l4proto_unregister(struct nf_conntrack_l4proto *l4proto) +void nf_conntrack_l4proto_unregister(struct nf_conntrack_l4proto *l4proto) { - int ret = 0; - - if (l4proto->l3proto >= PF_MAX) { - ret = -EBUSY; - goto out; - } + BUG_ON(l4proto->l3proto >= PF_MAX); if (l4proto == &nf_conntrack_l4proto_generic) { nf_ct_l4proto_unregister_sysctl(l4proto); - goto out; + return; } write_lock_bh(&nf_conntrack_lock); - if (nf_ct_protos[l4proto->l3proto][l4proto->l4proto] - != l4proto) { - write_unlock_bh(&nf_conntrack_lock); - ret = -EBUSY; - goto out; - } + BUG_ON(nf_ct_protos[l4proto->l3proto][l4proto->l4proto] != l4proto); rcu_assign_pointer(nf_ct_protos[l4proto->l3proto][l4proto->l4proto], &nf_conntrack_l4proto_generic); write_unlock_bh(&nf_conntrack_lock); @@ -398,8 +375,5 @@ int nf_conntrack_l4proto_unregister(struct nf_conntrack_l4proto *l4proto) /* Remove all contrack entries for this protocol */ nf_ct_iterate_cleanup(kill_l4proto, l4proto); - -out: - return ret; } EXPORT_SYMBOL_GPL(nf_conntrack_l4proto_unregister); |