__NETIF_F_BIT
#define __NETIF_F(name) __NETIF_F_BIT(NETIF_F_##name##_BIT)
#define NETIF_F_ETHTOOL_BITS ((__NETIF_F_BIT(NETDEV_FEATURE_COUNT - 1) | \
(__NETIF_F_BIT(NETDEV_FEATURE_COUNT - 1) - 1)) & \
#define NETIF_F_GSO_MASK (__NETIF_F_BIT(NETIF_F_GSO_LAST + 1) - \
__NETIF_F_BIT(NETIF_F_GSO_SHIFT))
feature = __NETIF_F_BIT(feature_bit);
feature = __NETIF_F_BIT(feature_bit);