Defined in 3 files as a macro:

• include/net/tcp.h, line 231 (as a macro)
• tools/testing/selftests/bpf/progs/bpf_tracing_net.h, line 89 (as a macro)
• tools/testing/selftests/bpf/progs/xdp_synproxy_kern.c, line 36 (as a macro)

Referenced in 7 files:

• net/ipv4/tcp_input.c
  • line 4545
  • line 4599
• net/ipv4/tcp_output.c, line 674
• net/netfilter/nf_synproxy_core.c
  • line 66
  • line 125
• net/netfilter/xt_TCPMSS.c
  • line 117
  • line 118
  • line 154
  • line 156
  • line 162
  • line 177
  • line 180
  • line 182
  • line 189
  • line 192
• net/netfilter/xt_tcpmss.c
  • line 59
  • line 60
• tools/testing/selftests/bpf/progs/test_tcp_custom_syncookie.c
  • line 248
  • line 370
• tools/testing/selftests/bpf/progs/xdp_synproxy_kern.c, line 487