Defined in 2 files as a macro:

• include/uapi/linux/if_tun.h, line 92 (as a macro)
• tools/include/uapi/linux/if_tun.h, line 90 (as a macro)

Referenced in 4 files:

• arch/um/drivers/vector_user.c, line 155
• drivers/net/tap.c
  • line 872
  • line 984
• drivers/net/tun.c
  • line 2989
  • line 2991
• tools/testing/selftests/net/tun.c, line 737