On 15.06.2020 01:26, Michal Kubecek wrote: > On Mon, Jun 15, 2020 at 12:35:30AM +0200, Heiner Kallweit wrote: >> Seems that disabling ETHTOOL_NETLINK for PHYLIB=m has (at least) one >> more side effect. I just saw that ifconfig doesn't report LOWER_UP >> any longer. Reason seems to be that the ioctl fallback supports >> 16 bits for the flags only (and IFF_LOWER_UP is bit 16). >> See dev_ifsioc_locked(). > > I don't think this is related to CONFIG_ETHTOOL_NETLINK; AFAIK ifconfig > does not use netlink at all and device flags are certainly not passed > via ethtool netlink. > Right, my bad. Just mixed up the output of ifconfig and "ip link", ip link says LOWER_UP whilst ifconfig says RUNNING.
> Michal > Heiner