Defined in 1 files as a macro:

• include/uapi/linux/in6.h, line 83 (as a macro)

Referenced in 4 files:

• net/ipv6/ip6_flowlabel.c, line 605
• net/ipv6/ipv6_sockglue.c, line 1311
• tools/testing/selftests/net/ipv6_flowlabel.c, line 150
• tools/testing/selftests/net/ipv6_flowlabel_mgr.c, line 51