Defined in 1 files as a macro:

• bsd/net/if_types.h, line 93 (as a macro)

Referenced in 6 files:

• bsd/net/dlil.c, line 754
• bsd/net/if_disc.c, line 101
• bsd/net/if_loop.c, line 464
• bsd/netinet/tcp_input.c, line 839
• bsd/netinet/udp_usrreq.c, line 581
• bsd/netinet6/ip6_input.c, line 667