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SubjectRe: [PATCH net-next v3 12/12] net: Get rid of SWITCHDEV_ATTR_ID_PORT_PARENT_ID
Wed, Feb 06, 2019 at 12:53:26AM CET, f.fainelli@gmail.com wrote:
>Now that we have a dedicated NDO for getting a port's parent ID, get rid
>of SWITCHDEV_ATTR_ID_PORT_PARENT_ID and convert all callers to use the
>NDO exclusively. This is a preliminary change to getting rid of
>switchdev_ops eventually.
>
>Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>

[...]


>@@ -24,19 +23,12 @@ static int br_switchdev_mark_get(struct net_bridge *br, struct net_device *dev)
>
> int nbp_switchdev_mark_set(struct net_bridge_port *p)
> {
>- const struct net_device_ops *ops = p->dev->netdev_ops;
>- struct switchdev_attr attr = {
>- .orig_dev = p->dev,
>- .id = SWITCHDEV_ATTR_ID_PORT_PARENT_ID,
>- };
>- int err;
>+ struct netdev_phys_item_id ppid = { };
>+ int err = -EOPNOTSUPP;

Pointless init.


>
> ASSERT_RTNL();
>
>- if (ops->ndo_get_port_parent_id)
>- err = dev_get_port_parent_id(p->dev, &attr.u.ppid, true);
>- else
>- err = switchdev_port_attr_get(p->dev, &attr);
>+ err = dev_get_port_parent_id(p->dev, &ppid, true);
> if (err) {
> if (err == -EOPNOTSUPP)
> return 0;

[...]


>@@ -1146,26 +1145,17 @@ static int rtnl_phys_port_name_fill(struct sk_buff *skb, struct net_device *dev)
>
> static int rtnl_phys_switch_id_fill(struct sk_buff *skb, struct net_device *dev)
> {
>- const struct net_device_ops *ops = dev->netdev_ops;
>- int err;
>- struct switchdev_attr attr = {
>- .orig_dev = dev,
>- .id = SWITCHDEV_ATTR_ID_PORT_PARENT_ID,
>- .flags = SWITCHDEV_F_NO_RECURSE,
>- };
>+ struct netdev_phys_item_id ppid = { };
>+ int err = -EOPNOTSUPP;

Pointless init.


>
>- if (ops->ndo_get_port_parent_id)
>- err = dev_get_port_parent_id(dev, &attr.u.ppid, false);
>- else
>- err = switchdev_port_attr_get(dev, &attr);
>+ err = dev_get_port_parent_id(dev, &ppid, false);
> if (err) {
> if (err == -EOPNOTSUPP)
> return 0;
> return err;
> }
>
>- if (nla_put(skb, IFLA_PHYS_SWITCH_ID, attr.u.ppid.id_len,
>- attr.u.ppid.id))
>+ if (nla_put(skb, IFLA_PHYS_SWITCH_ID, ppid.id_len, ppid.id))
> return -EMSGSIZE;
>
> return 0;

[...]


>@@ -920,15 +917,10 @@ static int vif_add(struct net *net, struct mr_table *mrt,
> vifc->vifc_flags | (!mrtsock ? VIFF_STATIC : 0),
> (VIFF_TUNNEL | VIFF_REGISTER));
>
>- attr.orig_dev = dev;
> ops = dev->netdev_ops;
>- if (ops->ndo_get_port_parent_id &&
>- !dev_get_port_parent_id(dev, &attr.u.ppid, true)) {
>- memcpy(v->dev_parent_id.id, attr.u.ppid.id, attr.u.ppid.id_len);
>- v->dev_parent_id.id_len = attr.u.ppid.id_len;
>- } else if (!switchdev_port_attr_get(dev, &attr)) {
>- memcpy(v->dev_parent_id.id, attr.u.ppid.id, attr.u.ppid.id_len);
>- v->dev_parent_id.id_len = attr.u.ppid.id_len;
>+ if (!dev_get_port_parent_id(dev, &ppid, true)) {

Please split this to:
err = dev_get_port_parent_id(dev, &ppid, true);
if (err) {


>+ memcpy(v->dev_parent_id.id, ppid.id, ppid.id_len);
>+ v->dev_parent_id.id_len = ppid.id_len;
> } else {
> v->dev_parent_id.id_len = 0;
> }

[...]

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