On Thu, 2018-09-13 at 15:59 -0700, David Miller wrote: > From: Johannes Berg <johannes@xxxxxxxxxxxxxxxx> > Date: Thu, 13 Sep 2018 10:46:02 +0200 > > > + NL_SET_BAD_ATTR(extack, nla); > > + if (extack && !extack->_msg) > > + NL_SET_ERR_MSG(extack, > > + "Attribute failed policy validation"); > > Given the lively discussion that resulted from this conditional I am > pretty sure we want to override existing messages. > > If we have an existing message, and we continued to process and > parse anyways, then the existing message was informational or > a warning. > > The message should be overridden when the action will be to fail, as > it will be here when we return -EINVAL. Not just -EINVAL, but yeah, I've just reworked the patch to do this. johannes