From b184356d0a003ac5e82b4adf37f2d334df1d213c Mon Sep 17 00:00:00 2001 From: Florian Westphal Date: Tue, 15 Jan 2019 22:03:39 +0100 Subject: netfilter: conntrack: remove module owner field No need to get/put module owner reference, none of these can be removed anymore. Signed-off-by: Florian Westphal Signed-off-by: Pablo Neira Ayuso --- net/netfilter/nf_conntrack_proto.c | 8 -------- net/netfilter/nf_conntrack_proto_gre.c | 1 - net/netfilter/nfnetlink_cttimeout.c | 6 ------ net/netfilter/nft_ct.c | 2 -- 4 files changed, 17 deletions(-) (limited to 'net/netfilter') diff --git a/net/netfilter/nf_conntrack_proto.c b/net/netfilter/nf_conntrack_proto.c index 47b9294a86f7..3455f993cc68 100644 --- a/net/netfilter/nf_conntrack_proto.c +++ b/net/netfilter/nf_conntrack_proto.c @@ -139,20 +139,12 @@ const struct nf_conntrack_l4proto *nf_ct_l4proto_find_get(u8 l4num) rcu_read_lock(); p = __nf_ct_l4proto_find(l4num); - if (!try_module_get(p->me)) - p = &nf_conntrack_l4proto_generic; rcu_read_unlock(); return p; } EXPORT_SYMBOL_GPL(nf_ct_l4proto_find_get); -void nf_ct_l4proto_put(const struct nf_conntrack_l4proto *p) -{ - module_put(p->me); -} -EXPORT_SYMBOL_GPL(nf_ct_l4proto_put); - static int kill_l4proto(struct nf_conn *i, void *data) { const struct nf_conntrack_l4proto *l4proto; diff --git a/net/netfilter/nf_conntrack_proto_gre.c b/net/netfilter/nf_conntrack_proto_gre.c index 04bc982b274d..0c26cfd5d29f 100644 --- a/net/netfilter/nf_conntrack_proto_gre.c +++ b/net/netfilter/nf_conntrack_proto_gre.c @@ -373,7 +373,6 @@ const struct nf_conntrack_l4proto nf_conntrack_l4proto_gre = { #endif .packet = gre_packet, .destroy = gre_destroy, - .me = THIS_MODULE, #if IS_ENABLED(CONFIG_NF_CT_NETLINK) .tuple_to_nlattr = nf_ct_port_tuple_to_nlattr, .nlattr_tuple_size = nf_ct_port_nlattr_tuple_size, diff --git a/net/netfilter/nfnetlink_cttimeout.c b/net/netfilter/nfnetlink_cttimeout.c index 0e3e1a018206..37b4f84ac153 100644 --- a/net/netfilter/nfnetlink_cttimeout.c +++ b/net/netfilter/nfnetlink_cttimeout.c @@ -152,7 +152,6 @@ static int cttimeout_new_timeout(struct net *net, struct sock *ctnl, err: kfree(timeout); err_proto_put: - nf_ct_l4proto_put(l4proto); return ret; } @@ -302,7 +301,6 @@ static int ctnl_timeout_try_del(struct net *net, struct ctnl_timeout *timeout) if (refcount_dec_if_one(&timeout->refcnt)) { /* We are protected by nfnl mutex. */ list_del_rcu(&timeout->head); - nf_ct_l4proto_put(timeout->timeout.l4proto); nf_ct_untimeout(net, &timeout->timeout); kfree_rcu(timeout, rcu_head); } else { @@ -372,10 +370,8 @@ static int cttimeout_default_set(struct net *net, struct sock *ctnl, if (ret < 0) goto err; - nf_ct_l4proto_put(l4proto); return 0; err: - nf_ct_l4proto_put(l4proto); return ret; } @@ -511,7 +507,6 @@ static int cttimeout_default_get(struct net *net, struct sock *ctnl, /* this avoids a loop in nfnetlink. */ return ret == -EAGAIN ? -ENOBUFS : ret; err: - nf_ct_l4proto_put(l4proto); return err; } @@ -592,7 +587,6 @@ static void __net_exit cttimeout_net_exit(struct net *net) list_for_each_entry_safe(cur, tmp, &net->nfct_timeout_list, head) { list_del_rcu(&cur->head); - nf_ct_l4proto_put(cur->timeout.l4proto); if (refcount_dec_and_test(&cur->refcnt)) kfree_rcu(cur, rcu_head); diff --git a/net/netfilter/nft_ct.c b/net/netfilter/nft_ct.c index 586627c361df..3249cc059048 100644 --- a/net/netfilter/nft_ct.c +++ b/net/netfilter/nft_ct.c @@ -902,7 +902,6 @@ static int nft_ct_timeout_obj_init(const struct nft_ctx *ctx, err_free_timeout: kfree(timeout); err_proto_put: - nf_ct_l4proto_put(l4proto); return ret; } @@ -913,7 +912,6 @@ static void nft_ct_timeout_obj_destroy(const struct nft_ctx *ctx, struct nf_ct_timeout *timeout = priv->timeout; nf_ct_untimeout(ctx->net, timeout); - nf_ct_l4proto_put(timeout->l4proto); nf_ct_netns_put(ctx->net, ctx->family); kfree(priv->timeout); } -- cgit v1.2.3-59-g8ed1b