Tue, Jan 15, 2019 at 01:50:03AM CET, jakub.kicin...@netronome.com wrote:
[...]
>+static int devlink_nl_info_sn_fill(struct sk_buff *msg, struct devlink
>*devlink,
>+ struct netlink_ext_ack *extack)
>+{
>+ unsigned char sn[32];
:/ Not good to have number directly here.
>+ size_t len = 0;
>+ int err;
>+
>+ if (!devlink->ops->serial_get)
>+ return 0;
>+
>+ err = devlink->ops->serial_get(devlink, sn, ARRAY_SIZE(sn), &len,
>+ extack);
Maybe it would be good to have a helper to fill this as well. That way,
driver could pass buffer of any length and helper would encode it into
skb.
>+ if (err)
>+ return err;
>+
>+ return nla_put(msg, DEVLINK_ATTR_INFO_SERIAL_NUMBER, len, sn);
>+}
[...]
