Defined in 1 files as a macro:

• include/uapi/linux/if_tunnel.h, line 32 (as a macro)

Referenced in 9 files:

• include/net/gre.h
  • line 68
  • line 91
• net/core/flow_dissector.c, line 402
• net/ipv4/gre_demux.c, line 75
• net/ipv4/ip_gre.c
  • line 542
  • line 794
• net/ipv4/netfilter/nf_nat_proto_gre.c, line 107
• net/ipv6/ip6_gre.c
  • line 384
  • line 869
  • line 1181
• net/netfilter/nf_conntrack_proto_gre.c, line 203
• samples/bpf/sockex2_kern.c, line 137
• samples/bpf/sockex3_kern.c, line 156