> >
> > That is good to know, but the inner struct is not the main issue as I see 
> > it.
> > The main issue is that the change breaks the ABI.  This change must be
> > implemented in some way that does not break the ABI.
> 
> Hi Ben,
> Are there any guidelines or mechanism available to extend such structures 
> which
> are defined in openvswitch.h with new fields for supporting new features?
> 
> We primarily need this feature for 'netdev' datapath and so kernel
> implementation need not change.
> 
Hi,

Can you help us in this regard? How do I extend this data structure to include 
more fields namely 'nd_options_type' and 'reserved'? As I mentioned we need 
this support only for netdev data path. Is it possible using some #defines?

Warm Regards,
Vishal Ajmera
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