RTNLGRP_LINK 547 include/linux/rtnetlink.h RTNLGRP_LINK, RTNLGRP_LINK 548 include/linux/rtnetlink.h #define RTNLGRP_LINK RTNLGRP_LINK RTNLGRP_LINK 548 include/linux/rtnetlink.h #define RTNLGRP_LINK RTNLGRP_LINK