On 01/10/2019 02:22 PM, Florian Westphal wrote:

Tom Herbert [off-list ref] wrote:

quoted

I couldn't find any mention of the advisory in the commit logs or
netdev discussion, and apparently there's no protocol requirement that
intermediate fragements need to be at least minimal MTU. Maybe this
patch should be reverted?

Currently ipv6 reasm doesn't use rbtree infrastructure, so it would
have to be converted first.

<quote>
Section 4.5 of RFC 8200 allows for sending any fragment for
fragments as long they add up to the original packet. 
</quote>

I do not believe we need an rbtree to implement this idea.