Defined in 2 files as a macro:

• include/uapi/linux/in6.h, line 166 (as a macro)
• tools/testing/selftests/net/ipv6_flowlabel.c, line 27 (as a macro)

Referenced in 4 files:

• net/ipv6/datagram.c
  • line 640
  • line 848
• net/ipv6/ipv6_sockglue.c
  • line 625
  • line 1217
  • line 1308
• net/mptcp/sockopt.c, line 494
• tools/testing/selftests/net/ipv6_flowlabel.c
  • line 26
  • line 80
  • line 137
  • line 243