Defined in 2 files as a macro:

• include/uapi/linux/tcp.h, line 116 (as a macro)
• tools/include/uapi/linux/tcp.h, line 113 (as a macro)

Referenced in 10 files:

• include/net/dropreason-core.h, line 53
• net/ipv4/tcp.c
  • line 4098
  • line 4675
• net/ipv4/tcp_input.c, line 7218
• net/mptcp/sockopt.c
  • line 576
  • line 848
  • line 1422
• net/smc/af_smc.c, line 3126
• tools/testing/selftests/bpf/prog_tests/migrate_reuseport.c, line 266
• tools/testing/selftests/net/mptcp/mptcp_connect.c, line 266
• tools/testing/selftests/net/reuseport_bpf.c, line 176
• tools/testing/selftests/net/tcp_fastopen_backup_key.c, line 132
• tools/testing/selftests/net/tfo.c, line 66