Defined in 2 files as a macro:

• include/uapi/linux/if_tun.h, line 69 (as a macro)
• tools/include/uapi/linux/if_tun.h, line 69 (as a macro)

Referenced in 3 files:

• drivers/net/tun.c
  • line 101
  • line 979
  • line 2840
  • line 2872
  • line 3103
• tools/testing/selftests/bpf/prog_tests/flow_dissector.c, line 569
• tools/testing/selftests/net/skf_net_off.c, line 66