[Cake] Possible conntrack lookup improvements

[Toke Høiland-Jørgensen]

Kevin Darbyshire-Bryant <kevin at darbyshire-bryant.me.uk> writes:

> Hi Everyone,
>
> I’ve been working on act_ctinfo toward getting that upstream and it is
> getting closer. Since that module along with act_connmark does its own
> conntrack lookups I’ve been looking at what they do and what we do in
> cake.
>
> Two patches attached - one is a simple variable elimination with no
> functional change. The second changes/simplifies the conntrack tuple
> lookup & usage. I’ve had a play and I don’t think I’ve broken any of
> the host fairness BUT it could do with some more testing, that’s where
> you come in… probably Pete & George :-)

Seems reasonable. But please fold these two patches into one; changing
everything, then immediately changing it again does not help
readability... And the explanation makes a lot more sense if you just
change the whole thing in one patch :)

-Toke