Defined in 1 files as a macro:

• include/uapi/linux/icmp.h, line 46 (as a macro)

Referenced in 4 files:

• net/ipv4/icmp.c, line 880
• net/ipv4/ip_input.c, line 216
• net/ipv4/netfilter/ipt_REJECT.c, line 44
• net/sctp/input.c, line 617