Defined in 2 files as a macro:

• include/uapi/linux/in6.h, line 165 (as a macro)
• tools/testing/selftests/net/ipv6_flowlabel.c, line 27 (as a macro)

Referenced in 4 files:

• net/ipv6/datagram.c
  • line 652
  • line 887
• net/ipv6/ipv6_sockglue.c
  • line 734
  • line 1164
  • line 1255
• net/mptcp/sockopt.c, line 508
• tools/testing/selftests/net/ipv6_flowlabel.c
  • line 26
  • line 80
  • line 137
  • line 243