On Thu, 2014-08-21 at 18:19 +0200, Jiri Pirko wrote:
[...]
> --- a/net/dsa/slave.c
> +++ b/net/dsa/slave.c
> @@ -171,6 +171,19 @@ static int dsa_slave_ioctl(struct net_device *dev,
> struct ifreq *ifr, int cmd)
> return -EOPNOTSUPP;
> }
>
> +static int dsa_slave_swdev_get_id(struct net_device *dev,
> + struct netdev_phys_item_id *psid)
> +{
> + struct dsa_slave_priv *p = netdev_priv(dev);
> + struct dsa_switch *ds = p->parent;
> + u64 tmp = (u64) ds;
> +
> + /* TODO: add more sophisticated id generation */
> + memcpy(&psid->id, &tmp, sizeof(tmp));
[...]
Right, you must not expose kernel addresses to userland.
Ben.
--
Ben Hutchings
If at first you don't succeed, you're doing about average.
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