Defined in 2 files as a macro:

• include/uapi/linux/mptcp.h, line 140 (as a macro)
• tools/testing/selftests/net/mptcp/mptcp_sockopt.c, line 114 (as a macro)

Referenced in 2 files:

• net/mptcp/sockopt.c, line 1508
• tools/testing/selftests/net/mptcp/mptcp_sockopt.c
  • line 90
  • line 524