VLAN_TAG_PRESENT 453 include/linux/filter.h BPF_ANCILLARY(VLAN_TAG_PRESENT); VLAN_TAG_PRESENT 81 include/linux/if_vlan.h #define vlan_tx_tag_present(__skb) ((__skb)->vlan_tci & VLAN_TAG_PRESENT) VLAN_TAG_PRESENT 82 include/linux/if_vlan.h #define vlan_tx_tag_get(__skb) ((__skb)->vlan_tci & ~VLAN_TAG_PRESENT) VLAN_TAG_PRESENT 355 include/linux/if_vlan.h skb->vlan_tci = VLAN_TAG_PRESENT | vlan_tci;