const golang.org/x/sys/unix.ETHTOOL_LINK_EXT_SUBSTATE_AN_NO_PARTNER_DETECTED

one use

	golang.org/x/sys/unix (current package)
		ztypes_linux.go#L3415: 	ETHTOOL_LINK_EXT_SUBSTATE_AN_NO_PARTNER_DETECTED                        = 0x1