Defined in 2 files as a macro:

• include/uapi/linux/if_tun.h, line 42 (as a macro)
• tools/include/uapi/linux/if_tun.h, line 42 (as a macro)

Referenced in 2 files:

• drivers/net/tap.c, line 943
• drivers/net/tun.c
  • line 3262
  • line 3486