Defined in 2 files as a macro:

• include/uapi/linux/tcp.h, line 127 (as a macro)
• tools/include/uapi/linux/tcp.h, line 124 (as a macro)

Referenced in 3 files:

• net/ipv4/tcp.c
  • line 4121
  • line 4683
• net/mptcp/sockopt.c
  • line 579
  • line 851
  • line 1425
• net/smc/af_smc.c, line 3129