code: func newIocltStringSetReq(linkName string) (*Ifreq, *ethtoolSset) {
  	e := &ethtoolSset{
  		cmd:  ETHTOOL_GSSET_INFO,
  		mask: 1 << ETH_SS_STATS,
  	}
  
  	ifreq := &Ifreq{Data: uintptr(unsafe.Pointer(e))}
  	copy(ifreq.Name[:unix.IFNAMSIZ-1], linkName)
  	return ifreq, e
  }
docs: // newIocltStringSetReq creates request to get interface string set