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Date:	Thu, 24 May 2012 11:56:18 +0200
From:	Pablo Neira Ayuso <pablo@...filter.org>
To:	Gao feng <gaofeng@...fujitsu.com>
Cc:	netfilter-devel@...r.kernel.org, netdev@...r.kernel.org,
	serge.hallyn@...onical.com, ebiederm@...ssion.com,
	dlezcano@...ibm.com
Subject: Re: [PATCH 15/17] netfilter: cleanup sysctl for l4proto and l3proto

On Thu, May 24, 2012 at 08:59:18AM +0800, Gao feng wrote:
> Hi pablo:
> 
> 于 2012年05月23日 18:38, Pablo Neira Ayuso 写道:
> > On Mon, May 14, 2012 at 04:52:25PM +0800, Gao feng wrote:
> >> delete no useless sysctl data for l4proto and l3proto.
> >>
> >> Acked-by: Eric W. Biederman <ebiederm@...ssion.com>
> >> Signed-off-by: Gao feng <gaofeng@...fujitsu.com>
> >> ---
> >>  include/net/netfilter/nf_conntrack_l3proto.h   |    2 --
> >>  include/net/netfilter/nf_conntrack_l4proto.h   |   10 ----------
> >>  net/ipv4/netfilter/nf_conntrack_l3proto_ipv4.c |    1 -
> >>  net/ipv4/netfilter/nf_conntrack_proto_icmp.c   |    8 --------
> >>  net/ipv6/netfilter/nf_conntrack_proto_icmpv6.c |    5 -----
> >>  net/netfilter/nf_conntrack_proto_generic.c     |    8 --------
> >>  net/netfilter/nf_conntrack_proto_sctp.c        |   15 ---------------
> >>  net/netfilter/nf_conntrack_proto_tcp.c         |   15 ---------------
> >>  net/netfilter/nf_conntrack_proto_udp.c         |   15 ---------------
> >>  net/netfilter/nf_conntrack_proto_udplite.c     |   12 ------------
> >>  10 files changed, 0 insertions(+), 91 deletions(-)
> >>
> >> diff --git a/include/net/netfilter/nf_conntrack_l3proto.h b/include/net/netfilter/nf_conntrack_l3proto.h
> >> index d6df8c7..6f7c13f 100644
> >> --- a/include/net/netfilter/nf_conntrack_l3proto.h
> >> +++ b/include/net/netfilter/nf_conntrack_l3proto.h
> >> @@ -64,9 +64,7 @@ struct nf_conntrack_l3proto {
> >>  	size_t nla_size;
> >>  
> >>  #ifdef CONFIG_SYSCTL
> >> -	struct ctl_table_header	*ctl_table_header;
> >>  	const char		*ctl_table_path;
> >> -	struct ctl_table	*ctl_table;
> >>  #endif /* CONFIG_SYSCTL */
> >>  
> >>  	/* Init l3proto pernet data */
> >> diff --git a/include/net/netfilter/nf_conntrack_l4proto.h b/include/net/netfilter/nf_conntrack_l4proto.h
> >> index 0d329b9..4881df34 100644
> >> --- a/include/net/netfilter/nf_conntrack_l4proto.h
> >> +++ b/include/net/netfilter/nf_conntrack_l4proto.h
> >> @@ -95,16 +95,6 @@ struct nf_conntrack_l4proto {
> >>  		const struct nla_policy *nla_policy;
> >>  	} ctnl_timeout;
> >>  #endif
> >> -
> >> -#ifdef CONFIG_SYSCTL
> >> -	struct ctl_table_header	**ctl_table_header;
> >> -	struct ctl_table	*ctl_table;
> >> -	unsigned int		*ctl_table_users;
> >> -#ifdef CONFIG_NF_CONNTRACK_PROC_COMPAT
> >> -	struct ctl_table_header	*ctl_compat_table_header;
> >> -	struct ctl_table	*ctl_compat_table;
> >> -#endif
> >> -#endif
> > 
> > Interesting. This structure is added in patch 1/17, then it's remove
> > in patch 15/17.
> > 
> > Probably I'm missing anything, but why are you doing it like that?
> 
> This structure means ctl_table_header,ctl_table and so on?
> 
> I add this structure to struct nf_proto_net in patch 1/17,so those fields in
> struct nf_conntrack_l4proto are useless,this patch is just some cleanup.
> 
> the same with nf_conntrack_l3proto.

I see, then it's OK. Please, elaborate a bit more the patch
description to explain that this structure is not required anymore.
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