Defined in 2 files as a macro:

• include/uapi/linux/if_tun.h, line 75 (as a macro)
• tools/include/uapi/linux/if_tun.h, line 73 (as a macro)

Referenced in 4 files:

• arch/um/drivers/vector_user.c
  • line 143
  • line 512
• drivers/net/tap.c
  • line 29
  • line 343
  • line 541
  • line 654
  • line 799
  • line 1180
• drivers/net/tun.c
  • line 99
  • line 1770
  • line 2063
  • line 2099
  • line 2380
• tools/testing/selftests/net/tap.c, line 215