Herbert Xu wrote :
> Probably. Patches are welcome :)
Here are they, in both case I checked that the stuff to clear
was not already cleared, but I could not produce any misbehavior
by writing random junk instead of clearing the data. All my tests
were on the loopback using UML.

For IPv4, the added safety seems worth, but for IPv6 it's less clear.

Thanks.

-- 
Guillaume