On Thu, Jul 25, 2024 at 12:06:22PM +0200, Daniel Borkmann wrote: > On 7/24/24 5:23 PM, Maciej Fijalkowski wrote: > > On Fri, Jul 12, 2024 at 06:52:50PM -0700, Stanislav Fomichev wrote: > > > Julian reports that commit 341ac980eab9 ("xsk: Support tx_metadata_len") > > > can break existing use cases which don't zero-initialize xdp_umem_reg > > > padding. Fix it (while still breaking a minority of new users of tx > > > metadata), update the docs, update the selftest and sprinkle some > > > BUILD_BUG_ONs to hopefully catch similar issues in the future. > > > > > > Thank you Julian for the report and for helping to chase it down! > > > > > > Reported-by: Julian Schindel <mail@xxxxxxxxxxxxxxxx> > > > Cc: Magnus Karlsson <magnus.karlsson@xxxxxxxxx> > > > > For the content series, > > > > Reviewed-by: Maciej Fijalkowski <maciej.fijalkowski@xxxxxxxxx> > > > > However I was not sure about handling patch 3/3. > > Ok, then I'm taking in the first two for now as they seem to actually > address the fix and the 3rd seems like an improvement which could also > get routed via bpf-next. In either case, if one of you could follow-up > on the latter, that would be great. My first thought was about squashing 1 and 3 but I hope Stan doesn't mind sending 3 solely to bpf-next... > > Thanks, > Daniel