include/linux/rtnetlink.h:171: warning: No description found for return value of 'rtnl_notify_needed' net/core/net_namespace.c:686: warning: No description found for return value of 'get_net_ns' net/core/net_namespace.c:1354: warning: No description found for return value of 'register_pernet_subsys' net/core/net_namespace.c:1400: warning: No description found for return value of 'register_pernet_device' net/core/rtnetlink.c:288: warning: No description found for return value of 'rtnl_register_module' net/core/rtnetlink.c:331: warning: No description found for return value of 'rtnl_unregister' net/core/rtnetlink.c:412: warning: No description found for return value of '__rtnl_link_register' net/core/rtnetlink.c:436: warning: No description found for return value of 'rtnl_link_register' net/core/rtnetlink.c:2159: warning: No description found for return value of 'rtnl_get_net_ns_capable' net/core/rtnetlink.c:4527: warning: No description found for return value of 'ndo_dflt_fdb_dump' include/linux/rtnetlink.h:192: warning: No description found for return value of 'rtnl_notify_needed' net/core/net_namespace.c:692: warning: No description found for return value of 'get_net_ns' net/core/net_namespace.c:1360: warning: No description found for return value of 'register_pernet_subsys' net/core/net_namespace.c:1406: warning: No description found for return value of 'register_pernet_device' net/core/rtnetlink.c:346: warning: No description found for return value of 'rtnl_register_module' net/core/rtnetlink.c:389: warning: No description found for return value of 'rtnl_unregister' net/core/rtnetlink.c:470: warning: No description found for return value of '__rtnl_link_register' net/core/rtnetlink.c:494: warning: No description found for return value of 'rtnl_link_register' net/core/rtnetlink.c:2217: warning: No description found for return value of 'rtnl_get_net_ns_capable' net/core/rtnetlink.c:4585: warning: No description found for return value of 'ndo_dflt_fdb_dump'