Defined in 3 files as a macro:

• include/net/tcp.h, line 232 (as a macro)
• tools/testing/selftests/bpf/progs/bpf_tracing_net.h, line 90 (as a macro)
• tools/testing/selftests/bpf/progs/xdp_synproxy_kern.c, line 37 (as a macro)

Referenced in 7 files:

• net/ipv4/tcp_input.c, line 4610
• net/ipv4/tcp_output.c, line 768
• net/netfilter/nf_conntrack_proto_tcp.c, line 376
• net/netfilter/nf_synproxy_core.c
  • line 72
  • line 151
• tools/testing/selftests/bpf/progs/test_tcp_custom_syncookie.c
  • line 253
  • line 376
• tools/testing/selftests/bpf/progs/xdp_synproxy_kern.c
  • line 240
  • line 508
• tools/testing/selftests/net/lib/gro.c
  • line 651
  • line 800