Thanks for the review Pravin! I fixed this before merging just a minute ago.

  Jarno

> On Jun 7, 2016, at 4:54 PM, pravin shelar <pshe...@ovn.org> wrote:
> 
> On Thu, May 26, 2016 at 4:29 PM, Jarno Rajahalme <ja...@ovn.org 
> <mailto:ja...@ovn.org>> wrote:
>> A netlink notifier ('nln') already supports multiple notifiers.  This
>> patch allows each of these notifiers to subscribe to a different
>> multicast group.  Sharing a single socket for multiple event types
>> (each on their own multicast group) provides serialization of events
>> when reordering of different event types could be problematic.  For
>> example, if a 'create' event and 'delete' event are on different
>> netlink multicast group, we may want to process those events in the
>> order in which kernel issued them, rather than in the order we happen
>> to check for them.
>> 
>> Moving the multicast group argument from nln_create() to
>> nln_notifier_create() allows each notifier to specify a different
>> multicast group.  The parse callback needs to identify the group the
>> message belonged to by returning the corresponding group number, or 0
>> when an parse error occurs.
>> 
>> Signed-off-by: Jarno Rajahalme <ja...@ovn.org>
> I am getting following warning.
> 
> tests/test-netlink-conntrack.c: In function ‘event_parse’:
> 
> tests/test-netlink-conntrack.c:50:1: error: control reaches end of
> non-void function [-Werror=return-type]
> 
> }
> 
> other than this and comments from Cascardo, the patch looks good to me.

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