1676 static int ethtool_tunable_valid(const struct ethtool_tunable *tuna)  in ethtool_tunable_valid()  argument
1678 	switch (tuna->id) {  in ethtool_tunable_valid()
1681 		if (tuna->len != sizeof(u32) ||  in ethtool_tunable_valid()
1682 		    tuna->type_id != ETHTOOL_TUNABLE_U32)  in ethtool_tunable_valid()
1695 	struct ethtool_tunable tuna;  in ethtool_get_tunable()  local
1701 	if (copy_from_user(&tuna, useraddr, sizeof(tuna)))  in ethtool_get_tunable()
1703 	ret = ethtool_tunable_valid(&tuna);  in ethtool_get_tunable()
1706 	data = kmalloc(tuna.len, GFP_USER);  in ethtool_get_tunable()
1709 	ret = ops->get_tunable(dev, &tuna, data);  in ethtool_get_tunable()
1712 	useraddr += sizeof(tuna);  in ethtool_get_tunable()
1714 	if (copy_to_user(useraddr, data, tuna.len))  in ethtool_get_tunable()
1726 	struct ethtool_tunable tuna;  in ethtool_set_tunable()  local
1732 	if (copy_from_user(&tuna, useraddr, sizeof(tuna)))  in ethtool_set_tunable()
1734 	ret = ethtool_tunable_valid(&tuna);  in ethtool_set_tunable()
1737 	data = kmalloc(tuna.len, GFP_USER);  in ethtool_set_tunable()
1740 	useraddr += sizeof(tuna);  in ethtool_set_tunable()
1742 	if (copy_from_user(data, useraddr, tuna.len))  in ethtool_set_tunable()
1744 	ret = ops->set_tunable(dev, &tuna, data);  in ethtool_set_tunable()