Defined in 1 files as a macro:

• include/uapi/linux/in6.h, line 226 (as a macro)

Referenced in 4 files:

• net/ipv6/ipv6_sockglue.c
  • line 522
  • line 1218
• net/mptcp/sockopt.c, line 418
• tools/testing/selftests/net/nettest.c, line 416
• tools/testing/selftests/net/txtimestamp.c, line 553