Willem de Bruijn wrote: > And the latter parse the network header for total_len/payload_len, to > find their original offset. > > It's also a bit of a hack. But a lot smaller patch, probably. While producing a smaller change - this is a bit of a hacky code change. My initial idea was to use network_offset added to the CB in the 4th commit - making a very small change. (https://lore.kernel.org/netdev/446695cb-50b8-4187-bf11-63aedb6e9aed@xxxxxxxxx/) Eric suggested it'd make more sense to pass it off as a parameter throughout the complete chain.