Defined in 4 files as a macro:

• include/net/tcp.h, line 209 (as a macro)
• tools/testing/selftests/bpf/progs/bpf_tracing_net.h, line 84 (as a macro)
• tools/testing/selftests/bpf/progs/xdp_synproxy_kern.c, line 31 (as a macro)
• tools/testing/selftests/bpf/test_tcp_hdr_options.h, line 53 (as a macro)

Referenced in 11 files:

• net/ipv4/tcp.c, line 3562
• net/ipv4/tcp_input.c
  • line 4545
  • line 4598
• net/ipv4/tcp_output.c, line 673
• net/netfilter/nf_synproxy_core.c
  • line 65
  • line 124
• net/netfilter/nft_exthdr.c, line 275
• net/netfilter/xt_TCPMSS.c
  • line 118
  • line 181
• net/netfilter/xt_tcpmss.c, line 58
• net/sched/sch_cake.c, line 1201
• tools/testing/selftests/bpf/prog_tests/parse_tcp_hdr_opt.c, line 23
• tools/testing/selftests/bpf/progs/test_tcp_custom_syncookie.c
  • line 246
  • line 370
• tools/testing/selftests/bpf/progs/xdp_synproxy_kern.c, line 487