Defined in 3 files as a macro:

• include/uapi/linux/netfilter/nfnetlink_hook.h, line 39 (as a macro)
• kernel/time/ntp.c, line 39 (as a macro)
• net/ax25/ax25_out.c, line 37 (as a macro)

Referenced in 5 files:

• include/uapi/linux/tc_act/tc_defact.h, line 326
• include/xen/interface/io/protocols.h, line 327
• kernel/time/namespace.c, line 327
• lib/ratelimit.c, line 327
• net/ax25/ax25_ip.c, line 327