NETIF_F_GSO_GRE 179 include/linux/netdev_features.h #define NETIF_F_GSO_ENCAP_ALL (NETIF_F_GSO_GRE | \ NETIF_F_GSO_GRE 3570 include/linux/netdevice.h BUILD_BUG_ON(SKB_GSO_GRE != (NETIF_F_GSO_GRE >> NETIF_F_GSO_SHIFT));