Defined in 1 files as a macro:

• bsd/net/if_var.h, line 1365 (as a macro)

Referenced in 4 files:

• bsd/net/dlil.c, line 5807
• bsd/netinet/in_tclass.c, line 1653
• bsd/netinet/ip_output.c, line 1817
• bsd/netinet/tcp_usrreq.c, line 1619