RTM_BASE 171 include/uapi/linux/rtnetlink.h #define RTM_NR_MSGTYPES (RTM_MAX + 1 - RTM_BASE) RTM_BASE 173 include/uapi/linux/rtnetlink.h #define RTM_FAM(cmd) (((cmd) - RTM_BASE) >> 2) RTM_BASE 146 net/core/rtnetlink.c int msgindex = msgtype - RTM_BASE; RTM_BASE 3446 net/core/rtnetlink.c int type = cb->nlh->nlmsg_type - RTM_BASE; RTM_BASE 5172 net/core/rtnetlink.c type -= RTM_BASE; RTM_BASE 5200 net/core/rtnetlink.c if (type == RTM_GETLINK - RTM_BASE)