Re: [PATCH net v3 4/4] ipmr: do not drop GSO packets that fit the MTU after segmentation

[Julius Bairaktaris]

> Should the inner UDP header length be accounted for in the
> skb->encapsulation branch of skb_gso_transport_seglen()?

Agreed. v4 adds patch 2, which counts the inner UDP header for
SKB_GSO_UDP_L4 in that branch. With UDP_SEGMENT over VXLAN with DF and
1404-byte outer segments, a route with MTU 1400 forwarded all 1000
segments at 1404 bytes, both through ip_forward() and through an MFC
entry; with patch 2 none leave and FragFails counts them.

pw-bot: cr