ethtool_flags
return test_bit(GVE_PRIV_FLAGS_REPORT_STATS, &priv->ethtool_flags);
clear_bit(GVE_PRIV_FLAGS_REPORT_STATS, &priv->ethtool_flags);
unsigned long ethtool_flags;
if (priv->ethtool_flags & BIT(0))
ori_flags = READ_ONCE(priv->ethtool_flags);
priv->ethtool_flags = new_flags;
priv->ethtool_flags = 0x0;