• Heiner Kallweit's avatar
    ethtool: runtime-resume netdev parent in ethnl_ops_begin · d43c65b0
    Heiner Kallweit authored
    If a network device is runtime-suspended then:
    - network device may be flagged as detached and all ethtool ops (even if not
      accessing the device) will fail because netif_device_present() returns
      false
    - ethtool ops may fail because device is not accessible (e.g. because being
      in D3 in case of a PCI device)
    
    It may not be desirable that userspace can't use even simple ethtool ops
    that not access the device if interface or link is down. To be more friendly
    to userspace let's ensure that device is runtime-resumed when executing the
    respective ethtool op in kernel.
    Signed-off-by: default avatarHeiner Kallweit <hkallweit1@gmail.com>
    Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
    d43c65b0
netlink.c 28.6 KB