Defined in 2 files as a enumerator:

• include/net/tcp.h, line 979 (as a enumerator)
• tools/testing/selftests/bpf/bpf_tcp_helpers.h, line 120 (as a enumerator)

Referenced in 3 files:

• net/ipv4/tcp_dctcp.c, line 169
• net/ipv4/tcp_input.c, line 363
• tools/testing/selftests/bpf/progs/bpf_dctcp.c, line 177