From: Pablo Neira Ayuso <pablo@netfilter.org>
To: Gao feng <gaofeng@cn.fujitsu.com>
Cc: netdev@vger.kernel.org, netfilter-devel@vger.kernel.org
Subject: Re: [PATCH net-next v2 03/12] netfilter: add nf_ct_kfree_compat_sysctl_table to make codes clear
Date: Sat, 16 Jun 2012 13:10:02 +0200 [thread overview]
Message-ID: <20120616111002.GF18251@1984> (raw)
In-Reply-To: <1339818083-31356-3-git-send-email-gaofeng@cn.fujitsu.com>
On Sat, Jun 16, 2012 at 11:41:14AM +0800, Gao feng wrote:
> add function nf_ct_kfree_compat_sysctl_table to kfree l4proto's
> compat sysctl table and set the sysctl table point to NULL.
>
> Signed-off-by: Gao feng <gaofeng@cn.fujitsu.com>
> ---
> include/net/netfilter/nf_conntrack_l4proto.h | 2 ++
> net/netfilter/nf_conntrack_proto.c | 12 ++++++++++--
> 2 files changed, 12 insertions(+), 2 deletions(-)
>
> diff --git a/include/net/netfilter/nf_conntrack_l4proto.h b/include/net/netfilter/nf_conntrack_l4proto.h
> index 5dd60f2..11fcf27 100644
> --- a/include/net/netfilter/nf_conntrack_l4proto.h
> +++ b/include/net/netfilter/nf_conntrack_l4proto.h
> @@ -124,6 +124,8 @@ extern int nf_conntrack_l4proto_register(struct net *net,
> extern void nf_conntrack_l4proto_unregister(struct net *net,
> struct nf_conntrack_l4proto *proto);
>
> +extern void nf_ct_kfree_compat_sysctl_table(struct nf_proto_net *pn);
> +
> /* Generic netlink helpers */
> extern int nf_ct_port_tuple_to_nlattr(struct sk_buff *skb,
> const struct nf_conntrack_tuple *tuple);
> diff --git a/net/netfilter/nf_conntrack_proto.c b/net/netfilter/nf_conntrack_proto.c
> index 5ea2d71..1033ee6 100644
> --- a/net/netfilter/nf_conntrack_proto.c
> +++ b/net/netfilter/nf_conntrack_proto.c
> @@ -327,6 +327,15 @@ static struct nf_proto_net *nf_ct_l4proto_net(struct net *net,
> return NULL;
> }
>
> +void nf_ct_kfree_compat_sysctl_table(struct nf_proto_net *pn)
> +{
> +#if defined(CONFIG_SYSCTL) && defined(CONFIG_NF_CONNTRACK_PROC_COMPAT)
> + kfree(pn->ctl_compat_table);
> + pn->ctl_compat_table = NULL;
> +#endif
> +}
> +EXPORT_SYMBOL_GPL(nf_ct_kfree_compat_sysctl_table);
I know, I told you to export this symbol instead of inlining it. But I
overlooked that this will be an empty symbol if systcl is disabled.
So, please recover the ancient patch that you sent that inlines this.
Sorry.
> +
> static
> int nf_ct_l4proto_register_sysctl(struct net *net,
> struct nf_conntrack_l4proto *l4proto)
> @@ -361,8 +370,7 @@ int nf_ct_l4proto_register_sysctl(struct net *net,
> if (err == 0)
> goto out;
>
> - kfree(pn->ctl_compat_table);
> - pn->ctl_compat_table = NULL;
> + nf_ct_kfree_compat_sysctl_table(pn);
> nf_ct_unregister_sysctl(&pn->ctl_table_header,
> &pn->ctl_table,
> &pn->users);
> --
> 1.7.7.6
>
next prev parent reply other threads:[~2012-06-16 11:10 UTC|newest]
Thread overview: 25+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-06-16 3:41 [PATCH net-next v2 01/12] netfilter: fix problem with proto register Gao feng
2012-06-16 3:41 ` [PATCH net-next v2 02/12] netfilter: add parameter proto for l4proto.init_net Gao feng
2012-06-16 3:41 ` [PATCH net-next v2 03/12] netfilter: add nf_ct_kfree_compat_sysctl_table to make codes clear Gao feng
2012-06-16 11:10 ` Pablo Neira Ayuso [this message]
2012-06-16 3:41 ` [PATCH net-next v2 04/12] netfilter: regard users as refcount for l4proto's per-net data Gao feng
2012-06-16 10:54 ` Pablo Neira Ayuso
2012-06-16 3:41 ` [PATCH net-next v2 05/12] netfilter: merge tcpv[4,6]_net_init into tcp_net_init Gao feng
2012-06-16 10:55 ` Pablo Neira Ayuso
2012-06-16 3:41 ` [PATCH net-next v2 06/12] netfilter: merge udpv[4,6]_net_init into udp_net_init Gao feng
2012-06-16 11:22 ` Pablo Neira Ayuso
2012-06-19 8:08 ` Gao feng
2012-06-19 8:12 ` Gao feng
2012-06-19 11:39 ` Pablo Neira Ayuso
2012-06-16 3:41 ` [PATCH net-next v2 07/12] netfilter: nf_conntrack_l4proto_udplite[4,6] cleanup Gao feng
2012-06-16 3:41 ` [PATCH net-next v2 08/12] netfilter: merge sctpv[4,6]_net_init into sctp_net_init Gao feng
2012-06-16 3:41 ` [PATCH net-next v2 09/12] netfilter: nf_conntrack_l4proto_generic cleanup Gao feng
2012-06-16 11:05 ` Pablo Neira Ayuso
2012-06-16 3:41 ` [PATCH net-next v2 10/12] netfilter: nf_conntrack_l4proto_dccp[4,6] cleanup Gao feng
2012-06-16 3:41 ` [PATCH net-next v2 11/12] netfilter: nf_conntrack_l4proto_icmp cleanup Gao feng
2012-06-16 11:08 ` Pablo Neira Ayuso
2012-06-19 8:14 ` Gao feng
2012-06-16 3:41 ` [PATCH net-next v2 12/12] netfilter: nf_conntrack_l4proto_icmpv6 cleanup Gao feng
2012-06-16 10:50 ` [PATCH net-next v2 01/12] netfilter: fix problem with proto register Pablo Neira Ayuso
2012-06-18 0:59 ` Gao feng
2012-06-18 9:06 ` Pablo Neira Ayuso
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