Defined in 2 files as a macro:

• include/net/tcp.h, line 71 (as a macro)
• tools/testing/selftests/bpf/test_tcp_hdr_options.h, line 59 (as a macro)

Referenced in 8 files:

• include/net/tcp.h, line 73
• net/ipv4/tcp.c, line 5289
• net/ipv4/tcp_ao.c, line 1415
• net/ipv4/tcp_input.c, line 264
• net/ipv4/tcp_ipv4.c
  • line 658
  • line 918
• net/ipv4/tcp_output.c
  • line 964
  • line 1057
  • line 1071
  • line 1145
  • line 1186
  • line 1206
  • line 1233
  • line 1239
  • line 1244
  • line 4223
• net/mptcp/protocol.c, line 1472
• net/netfilter/nft_exthdr.c
  • line 192
  • line 236
  • line 316