snap_attr 3502 net/core/devlink.c struct nlattr *snap_attr; snap_attr 3505 net/core/devlink.c snap_attr = nla_nest_start_noflag(msg, DEVLINK_ATTR_REGION_SNAPSHOT); snap_attr 3506 net/core/devlink.c if (!snap_attr) snap_attr 3513 net/core/devlink.c nla_nest_end(msg, snap_attr); snap_attr 3517 net/core/devlink.c nla_nest_cancel(msg, snap_attr);