Defined in 2 files as a macro:

• include/uapi/linux/tcp.h, line 387 (as a macro)
• tools/include/uapi/linux/tcp.h, line 324 (as a macro)

Referenced in 4 files:

• net/ipv4/tcp_ipv4.c
  • line 1260
  • line 1305
  • line 1305
  • line 1499
  • line 1500
  • line 1510
• net/ipv6/tcp_ipv6.c
  • line 651
  • line 652
  • line 665
• tools/testing/selftests/net/nettest.c, line 286
• tools/testing/selftests/net/tcp_ao/lib/sock.c, line 198