> 1. Is ordering important or is an SLIST sufficient for all cases?
Order is not important.
> 2. Is it possible to attach the aux argument to the mbuf chain instead of
> adding it as a new parameter to ip_output?
>
The "aux argument" _was_ originally attached to the mbuf chain. The change
to add an extra arg to ip*_output was done to eliminate one of the biggest
uses of the aux mbuf; the socket to use to get IPsec policy. This is a
performance win and worth doing independent of the aux->m_tag switch.
One could split the ip_output change out but doing it together avoids
converting code that would just eventually be eliminated (unless you did the
ip_output change first and then the m_tag switch).
Sam
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