[ovs-dev] [PATCH net-next 2/4] openvswitch: Simplify interface ovs_flow_metadata_from_nlattrs()

Pravin Shelar pshelar at nicira.com
Thu Jun 13 16:13:22 UTC 2013


On Wed, Jun 12, 2013 at 7:52 PM, Jesse Gross <jesse at nicira.com> wrote:
> On Wed, Jun 12, 2013 at 3:57 PM, Pravin B Shelar <pshelar at nicira.com> wrote:
>> diff --git a/net/openvswitch/flow.c b/net/openvswitch/flow.c
>> index b15321a..150f181 100644
>> --- a/net/openvswitch/flow.c
>> +++ b/net/openvswitch/flow.c
>> @@ -1122,10 +1122,9 @@ int ovs_flow_from_nlattrs(struct sw_flow_key *swkey, int *key_lenp,
>>
>>  /**
>>   * ovs_flow_metadata_from_nlattrs - parses Netlink attributes into a flow key.
>> - * @priority: receives the skb priority
>> - * @mark: receives the skb mark
>> - * @in_port: receives the extracted input port.
>> - * @key: Netlink attribute holding nested %OVS_KEY_ATTR_* Netlink attribute
>> + * @flow: Receives extracted in_port, priority, tun_key and skb_mark.
>> + * @key_len: Length of key in @flow.  Used for calculating flow hash.
>> + * @attr: Netlink attribute holding nested %OVS_KEY_ATTR_* Netlink attribute
>>   * sequence.
>>   *
>>   * This parses a series of Netlink attributes that form a flow key, which must
>> @@ -1133,15 +1132,15 @@ int ovs_flow_from_nlattrs(struct sw_flow_key *swkey, int *key_lenp,
>>   * get the metadata, that is, the parts of the flow key that cannot be
>>   * extracted from the packet itself.
>>   */
>> -int ovs_flow_metadata_from_nlattrs(u32 *priority, u32 *mark, u16 *in_port,
>> -                              const struct nlattr *attr)
>> +int ovs_flow_metadata_from_nlattrs(struct sw_flow *flow, int key_len,
>> +                                  const struct nlattr *attr)
>
> It looks like key_len isn't actually used in this function. Is there
> another piece that you meant to include?

right, It is not required in this patch. will send updated patch.



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