ethtool_rxfh_indir
useraddr + offsetof(struct ethtool_rxfh_indir, size),
if (copy_to_user(useraddr + offsetof(struct ethtool_rxfh_indir, size),
offsetof(struct ethtool_rxfh_indir, ring_index[0]),
u32 ringidx_offset = offsetof(struct ethtool_rxfh_indir, ring_index[0]);
useraddr + offsetof(struct ethtool_rxfh_indir, size),