Defined in 2 files as a enumerator:

• include/uapi/linux/tcp.h, line 166 (as a enumerator)
• tools/include/uapi/linux/tcp.h, line 153 (as a enumerator)

Referenced in 3 files:

• net/ipv4/tcp.c
  • line 1204
  • line 4019
  • line 4665
• tools/testing/selftests/net/tcp_ao/icmps-discard.c, line 351
• tools/testing/selftests/net/tcp_ao/lib/repair.c
  • line 99
  • line 178
  • line 216