NETIF_F_HW_VLAN_STAG_TX  279 include/linux/if_vlan.h 	if (proto == htons(ETH_P_8021AD) && features & NETIF_F_HW_VLAN_STAG_TX)
NETIF_F_HW_VLAN_STAG_TX  177 include/linux/netdev_features.h 				 NETIF_F_HW_VLAN_STAG_TX)