Defined in 1 files as a macro:

• include/uapi/linux/in.h, line 126 (as a macro)

Referenced in 3 files:

• net/ipv4/ip_sockglue.c
  • line 922
  • line 970
  • line 1546
• net/mptcp/sockopt.c, line 461
• tools/testing/selftests/bpf/prog_tests/sk_lookup.c, line 116