ib_port_sysfs_get_ibdev_kobj
EXPORT_SYMBOL(ib_port_sysfs_get_ibdev_kobj);
struct ib_device *ibdev = ib_port_sysfs_get_ibdev_kobj(kobj, &port_num);
struct ib_device *ib_port_sysfs_get_ibdev_kobj(struct kobject *kobj,