return err;}EXPORT_SYMBOL_GPL(switchdev_handle_port_obj_add); static int __switchdev_handle_port_obj_del(struct net_device *dev, struct switchdev_notifier_port_obj_info *port_obj_info, bool (*check_cb)(const struct net_device *dev), int (*del_cb)(struct net_device *dev, const struct switchdev_obj *obj)){ struct net_device *lower_dev; struct list_head *iter; int err = -EOPNOTSUPP; if (check_cb(dev)) { /* This flag is only checked if the return value is success. */ port_obj_info->handled = true; return del_cb(dev, port_obj_info->obj); } /* Switch ports might be stacked under e.g. a LAG. Ignore the * unsupported devices, another driver might be able to handle them. But * propagate to the callers any hard errors. * * If the driver does its own bookkeeping of stacked ports, it's not * necessary to go through this helper. */ netdev_for_each_lower_dev(dev, lower_dev, iter) { err = __switchdev_handle_port_obj_del(lower_dev, port_obj_info, check_cb, del_cb); if (err && err != -EOPNOTSUPP) return err; } return err;} int switchdev_handle_port_obj_del(struct net_device *dev, struct switchdev_notifier_port_obj_info *port_obj_info, bool (*check_cb)(const struct net_device *dev), int (*del_cb)(struct net_device *dev, const struct switchdev_obj *obj)){ int err; err = __switchdev_handle_port_obj_del(dev, port_obj_info, check_cb, del_cb); if (err == -EOPNOTSUPP) err = 0; return err;}EXPORT_SYMBOL_GPL(switchdev_handle_port_obj_del); static int __switchdev_handle_port_attr_set(struct net_device *dev, struct switchdev_notifier_port_attr_info *port_attr_info, bool (*check_cb)(const struct net_device *dev), int (*set_cb)(struct net_device *dev, const struct switchdev_attr *attr, struct switchdev_trans *trans)){ struct net_device *lower_dev; struct list_head *iter; int err = -EOPNOTSUPP; if (check_cb(dev)) { port_attr_info->handled = true; return set_cb(dev, port_attr_info->attr, port_attr_info->trans); } /* Switch ports might be stacked under e.g. a LAG. Ignore the * unsupported devices, another driver might be able to handle them. But * propagate to the callers any hard errors. * * If the driver does its own bookkeeping of stacked ports, it's not * necessary to go through this helper. */ netdev_for_each_lower_dev(dev, lower_dev, iter) { err = __switchdev_handle_port_attr_set(lower_dev, port_attr_info, check_cb, set_cb); if (err && err != -EOPNOTSUPP) return err; } return err;} int switchdev_handle_port_attr_set(struct net_device *dev, struct switchdev_notifier_port_attr_info *port_attr_info, bool (*check_cb)(const struct net_device *dev), int (*set_cb)(struct net_device *dev, const struct switchdev_attr *attr, struct switchdev_trans *trans)){ int err; err = __switchdev_handle_port_attr_set(dev, port_attr_info, check_cb, set_cb); if (err == -EOPNOTSUPP) err = 0; return err;}EXPORT_SYMBOL_GPL(switchdev_handle_port_attr_set);Lines 501–603 of 603. Previous lines
return err; } EXPORT_SYMBOL_GPL(switchdev_handle_port_obj_add); static int __switchdev_handle_port_obj_del(struct net_device *dev, struct switchdev_notifier_port_obj_info *port_obj_info, bool (*check_cb)(const struct net_device *dev), int (*del_cb)(struct net_device *dev, const struct switchdev_obj *obj)) { struct net_device *lower_dev; struct list_head *iter; int err = -EOPNOTSUPP; if (check_cb(dev)) { /* This flag is only checked if the return value is success. */ port_obj_info->handled = true; return del_cb(dev, port_obj_info->obj); } /* Switch ports might be stacked under e.g. a LAG. Ignore the * unsupported devices, another driver might be able to handle them. But * propagate to the callers any hard errors. * * If the driver does its own bookkeeping of stacked ports, it's not * necessary to go through this helper. */ netdev_for_each_lower_dev(dev, lower_dev, iter) { err = __switchdev_handle_port_obj_del(lower_dev, port_obj_info, check_cb, del_cb); if (err && err != -EOPNOTSUPP) return err; } return err; } int switchdev_handle_port_obj_del(struct net_device *dev, struct switchdev_notifier_port_obj_info *port_obj_info, bool (*check_cb)(const struct net_device *dev), int (*del_cb)(struct net_device *dev, const struct switchdev_obj *obj)) { int err; err = __switchdev_handle_port_obj_del(dev, port_obj_info, check_cb, del_cb); if (err == -EOPNOTSUPP) err = 0; return err; } EXPORT_SYMBOL_GPL(switchdev_handle_port_obj_del); static int __switchdev_handle_port_attr_set(struct net_device *dev, struct switchdev_notifier_port_attr_info *port_attr_info, bool (*check_cb)(const struct net_device *dev), int (*set_cb)(struct net_device *dev, const struct switchdev_attr *attr, struct switchdev_trans *trans)) { struct net_device *lower_dev; struct list_head *iter; int err = -EOPNOTSUPP; if (check_cb(dev)) { port_attr_info->handled = true; return set_cb(dev, port_attr_info->attr, port_attr_info->trans); } /* Switch ports might be stacked under e.g. a LAG. Ignore the * unsupported devices, another driver might be able to handle them. But * propagate to the callers any hard errors. * * If the driver does its own bookkeeping of stacked ports, it's not * necessary to go through this helper. */ netdev_for_each_lower_dev(dev, lower_dev, iter) { err = __switchdev_handle_port_attr_set(lower_dev, port_attr_info, check_cb, set_cb); if (err && err != -EOPNOTSUPP) return err; } return err; } int switchdev_handle_port_attr_set(struct net_device *dev, struct switchdev_notifier_port_attr_info *port_attr_info, bool (*check_cb)(const struct net_device *dev), int (*set_cb)(struct net_device *dev, const struct switchdev_attr *attr, struct switchdev_trans *trans)) { int err; err = __switchdev_handle_port_attr_set(dev, port_attr_info, check_cb, set_cb); if (err == -EOPNOTSUPP) err = 0; return err; } EXPORT_SYMBOL_GPL(switchdev_handle_port_attr_set);