From: lina.wang <lina.wang@xxxxxxxxxxxx> On Wed, 2022-02-09 at 17:06 -0800, Jakub Kicinski wrote: > On Wed, 9 Feb 2022 18:25:07 +0800 lina.wang wrote: > > We use NETIF_F_GRO_FRAGLIST not for forwarding scenary, just for > > software udp gro. Whatever NETIF_F_GRO_FRAGLIST or NETIF_F_GRO_FWD, > > skb_segment_list should not have bugs. > > > > We modify skb_segment_list, not in epbf. One point is traversing > > the > > segments costly, another is what @Maciej said, *other* helper may > > have > > the same problem. In skb_segment_list, it calls > > skb_headers_offset_update to update different headroom, which > > implys > > header maybe different. > > Process notes: > - the patch didn't apply so even if the discussion concludes that > the patch was good you'll need to rebase on netdev/net and repost; > - please don't top post. I have rebased and reposted-- https://patchwork.kernel.org/project/netdevbpf/patch/20220210091655.17231-1-lina.wang@xxxxxxxxxxxx/, please check if it can apply. Thanks!