On Fri, Dec 1, 2017 at 9:56 AM, Jiri Pirko <j...@resnulli.us> wrote: > > Isn't this here so user may specify a ifindex of netdev which is not yet > present on the system (not sure how much sense that would make though...)
How is this even possible? If an ifindex is not present, we return ENODEV: if (parm->ifindex) { dev = __dev_get_by_index(net, parm->ifindex); if (dev == NULL) { if (exists) tcf_idr_release(*a, bind); return -ENODEV; }