netdev - Re: [ovs-dev] [PATCH net-next v3 1/8] netfilter: Remove IP_CT_NEW_REPLY definition.

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Date:	Mon, 30 Nov 2015 10:16:43 -0800
From:	Jarno Rajahalme <jarno@....org>
To:	Simon Horman <simon.horman@...ronome.com>
Cc:	netdev@...r.kernel.org, dev@...nvswitch.org,
	netfilter-devel@...r.kernel.org
Subject: Re: [ovs-dev] [PATCH net-next v3 1/8] netfilter: Remove IP_CT_NEW_REPLY definition.

> On Nov 25, 2015, at 21:41, Simon Horman <simon.horman@...ronome.com> wrote:
> 
>> On Wed, Nov 25, 2015 at 04:08:14PM -0800, Jarno Rajahalme wrote:
>> Remove the definition of IP_CT_NEW_REPLY from the kernel as it does
>> not make sense.  This allows the definition of IP_CT_NUMBER to be
>> simplified as well.
>> 
>> Signed-off-by: Jarno Rajahalme <jarno@....org>
> 
> I hate to be the bearer of bad news but its not clear
> to me that this change doesn't break user-space.
> 

These should be no change for the userspace, unless __KERNEL__ is defined.

Also, this is a minor clean-up only, so I have no problem dropping this patch, is need be.

  Jarno

>> ---
>> include/uapi/linux/netfilter/nf_conntrack_common.h | 12 +++++++++---
>> net/openvswitch/conntrack.c                        |  2 --
>> 2 files changed, 9 insertions(+), 5 deletions(-)
>> 
>> diff --git a/include/uapi/linux/netfilter/nf_conntrack_common.h b/include/uapi/linux/netfilter/nf_conntrack_common.h
>> index 319f471..2f067cf 100644
>> --- a/include/uapi/linux/netfilter/nf_conntrack_common.h
>> +++ b/include/uapi/linux/netfilter/nf_conntrack_common.h
>> @@ -20,9 +20,15 @@ enum ip_conntrack_info {
>> 
>>    IP_CT_ESTABLISHED_REPLY = IP_CT_ESTABLISHED + IP_CT_IS_REPLY,
>>    IP_CT_RELATED_REPLY = IP_CT_RELATED + IP_CT_IS_REPLY,
>> -    IP_CT_NEW_REPLY = IP_CT_NEW + IP_CT_IS_REPLY,    
>> -    /* Number of distinct IP_CT types (no NEW in reply dirn). */
>> -    IP_CT_NUMBER = IP_CT_IS_REPLY * 2 - 1
>> +    /* No NEW in reply direction. */
>> +
>> +    /* Number of distinct IP_CT types. */
>> +    IP_CT_NUMBER
>> +
>> +    /* only for userspace compatibility */
>> +#ifndef __KERNEL__
>> +    IP_CT_NEW_REPLY = IP_CT_NUMBER;
>> +#endif
>> };
>> 
>> #define NF_CT_STATE_INVALID_BIT            (1 << 0)
>> diff --git a/net/openvswitch/conntrack.c b/net/openvswitch/conntrack.c
>> index c2cc111..a28a819 100644
>> --- a/net/openvswitch/conntrack.c
>> +++ b/net/openvswitch/conntrack.c
>> @@ -73,7 +73,6 @@ static u8 ovs_ct_get_state(enum ip_conntrack_info ctinfo)
>>    switch (ctinfo) {
>>    case IP_CT_ESTABLISHED_REPLY:
>>    case IP_CT_RELATED_REPLY:
>> -    case IP_CT_NEW_REPLY:
>>        ct_state |= OVS_CS_F_REPLY_DIR;
>>        break;
>>    default:
>> @@ -90,7 +89,6 @@ static u8 ovs_ct_get_state(enum ip_conntrack_info ctinfo)
>>        ct_state |= OVS_CS_F_RELATED;
>>        break;
>>    case IP_CT_NEW:
>> -    case IP_CT_NEW_REPLY:
>>        ct_state |= OVS_CS_F_NEW;
>>        break;
>>    default:
>> -- 
>> 2.1.4
>> 
>> _______________________________________________
>> dev mailing list
>> dev@...nvswitch.org
>> http://openvswitch.org/mailman/listinfo/dev
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