Defined in 3 files as a macro:

• include/uapi/linux/tcp.h, line 96 (as a macro)
• tools/include/uapi/linux/tcp.h, line 93 (as a macro)
• tools/testing/selftests/bpf/progs/bpf_tracing_net.h, line 47 (as a macro)

Referenced in 6 files:

• net/core/filter.c, line 5577
• net/ipv4/tcp.c
  • line 3960
  • line 4499
• net/mptcp/sockopt.c
  • line 558
  • line 894
  • line 1450
• tools/testing/selftests/bpf/progs/setget_sockopt.c
  • line 336
  • line 339
• tools/testing/selftests/net/tcp_ao/lib/repair.c, line 105
• tools/testing/selftests/net/tcp_mmap.c
  • line 533
  • line 565