Defined in 1 files as a macro:

• bsd/sys/mbuf.h, line 580 (as a macro)

Referenced in 4 files:

• bsd/kern/uipc_mbuf.c, line 1458
• bsd/net/dlil.c, line 1381
• bsd/netinet/ip_output.c, line 3427
• bsd/sys/mbuf.h, line 596