Re: [PATCHv11 bpf-next 2/5] xdp: add a new helper for dev map multicast support

On Wed, Sep 9, 2020 at 8:30 PM David Ahern [off-list ref] wrote:

quoted

I think the packets modification (edit dst mac, add vlan tag, etc) should be
done on egress, which rely on David's XDP egress support.

agreed. The DEVMAP used for redirect can have programs attached that
update the packet headers - assuming you want to update them.

Then you folks have to submit them as one set.
As-is the programmer cannot achieve correct behavior.