Subject: Re: [net-next v8 2/3] net: ethernet: adi: Add ADIN1110 support

From: Jakub Kicinski <[email-masked]>
Date: Tue, 20 Sep 2022 08:29:05 -0700

On Tue, 13 Sep 2022 15:26:28 +0300 [email-masked] wrote:
> +static int adin1110_port_get_port_parent_id(struct net_device *dev,
> +					    struct netdev_phys_item_id *ppid)
> +{
> +	struct adin1110_port_priv *port_priv = netdev_priv(dev);
> +	struct adin1110_priv *priv = port_priv->priv;
> +
> +	ppid->id_len = strnlen(priv->mii_bus_name, MII_BUS_ID_SIZE);
> +	memcpy(ppid->id, priv->mii_bus_name, ppid->id_len);

gcc 8.5 complains about overflow here, MII_BUS_ID_SIZE is larger 
than MAX_PHYS_ITEM_ID_LEN, i.e. the length of ppid->id.

Please fix this up, the build bots are gonna get angry.