IF_OPER_UP 1368 include/linux/netdevice.h return (dev->operstate == IF_OPER_UP || IF_OPER_UP 50 net/core/link_watch.c return IF_OPER_UP; IF_OPER_UP 65 net/core/link_watch.c if (operstate == IF_OPER_UP) IF_OPER_UP 531 net/core/rtnetlink.c case IF_OPER_UP: IF_OPER_UP 535 net/core/rtnetlink.c operstate = IF_OPER_UP; IF_OPER_UP 539 net/core/rtnetlink.c if (operstate == IF_OPER_UP ||