Defined in 1 files as a macro:

• bsd/net/if_var.h, line 61 (as a macro)

Referenced in 3 files:

• bsd/net/dlil_ethersubr.c, line 1059
• bsd/net/ether_if_module.c, line 603
• bsd/net/if_ethersubr.c, line 153