On Tue, 2018-09-18 at 10:18 -0700, David Ahern wrote: > On 9/18/18 6:12 AM, Johannes Berg wrote: > > diff --git a/lib/nlattr.c b/lib/nlattr.c > > index 120ad569e13d..efbd6c1aff29 100644 > > --- a/lib/nlattr.c > > +++ b/lib/nlattr.c > > @@ -181,9 +181,13 @@ int nla_validate(const struct nlattr *head, int len, > > int maxtype, > > int rem; > > > > nla_for_each_attr(nla, head, len, rem) { > > - int err = validate_nla(nla, maxtype, policy, NULL); > > + static const char _msg[] = "Attribute failed policy validation"; > > + const char *msg = _msg; > > + int err = validate_nla(nla, maxtype, policy, &msg); > > > > if (err < 0) { > > + if (extack) > > + extack->_msg = msg; > > NL_SET_BAD_ATTR(extack, nla); > > return err; > > } > > > > I take it this set is on top of another set - the NLA_REJECT?
Yeah, these two: https://patchwork.ozlabs.org/project/netdev/list/?series=65982 johannes