include/linux/rtnetlink.h:227: warning: No description found for return value of 'rtnl_notify_needed' net/core/rtnetlink.c:440: warning: No description found for return value of 'rtnl_unregister' net/core/rtnetlink.c:517: warning: No description found for return value of '__rtnl_register_many' net/core/rtnetlink.c:584: warning: No description found for return value of 'rtnl_link_register' net/core/rtnetlink.c:2346: warning: No description found for return value of 'rtnl_get_net_ns_capable' net/core/rtnetlink.c:4805: warning: No description found for return value of 'ndo_dflt_fdb_dump' include/linux/rtnetlink.h:234: warning: No description found for return value of 'rtnl_notify_needed' net/core/rtnetlink.c:440: warning: No description found for return value of 'rtnl_unregister' net/core/rtnetlink.c:517: warning: No description found for return value of '__rtnl_register_many' net/core/rtnetlink.c:584: warning: No description found for return value of 'rtnl_link_register' net/core/rtnetlink.c:2346: warning: No description found for return value of 'rtnl_get_net_ns_capable' net/core/rtnetlink.c:4806: warning: No description found for return value of 'ndo_dflt_fdb_dump'