Defined in 2 files as a macro:

• include/uapi/linux/tcp.h, line 92 (as a macro)
• tools/include/uapi/linux/tcp.h, line 92 (as a macro)

Referenced in 7 files:

• net/ceph/messenger.c, line 470
• net/ipv4/tcp.c
  • line 3441
  • line 3933
• net/mptcp/sockopt.c, line 523
• net/smc/af_smc.c, line 2244
• tools/testing/selftests/net/fin_ack_lat.c, line 51
• tools/testing/selftests/net/txtimestamp.c, line 538
• tools/usb/usbip/src/usbip_network.c, line 227