On Sat, 2017-04-08 at 20:34 +0200, Jiri Pirko wrote: > nla_total_size(sizeof(u32)); > > + if (extack && > > + (extack->missing_attr || extack- > > >bad_attr)) > > Attr could be 0, right? I know that on the most of the places 0 is > UNSPEC, but I'm pretty sure not everywhere. Yeah, I guess we can't show a missing attribute of 0 now - bad_attr is a pointer so no problem there. I think I'll leave it like this - if anyone really wants to say "attribute 0 is missing" then we can add a flag later... The UAPI does take this into account by not including the attribute at all if the data is invalid, so 0 in the userspace API can be done johannes
