Defined in 2 files as a macro:

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

Referenced in 9 files:

• include/net/dropreason-core.h, line 43
• net/ipv4/tcp.c
  • line 3657
  • line 4194
• net/ipv4/tcp_input.c, line 6689
• net/mptcp/sockopt.c
  • line 568
  • line 829
  • line 1340
• net/smc/af_smc.c, line 3083
• tools/testing/selftests/bpf/prog_tests/migrate_reuseport.c, line 261
• tools/testing/selftests/net/mptcp/mptcp_connect.c, line 248
• tools/testing/selftests/net/reuseport_bpf.c, line 175
• tools/testing/selftests/net/tcp_fastopen_backup_key.c, line 132