VLAN_CFI_MASK 63 include/linux/if_vlan.h #define VLAN_CFI_MASK 0x1000 /* Canonical Format Indicator / Drop Eligible Indicator */ VLAN_CFI_MASK 40 tools/testing/selftests/bpf/progs/test_xdp_vlan.c #define VLAN_CFI_MASK 0x1000 /* Canonical Format Indicator */