Warnings before patch:
files: ['net/core/dev.c', 'net/ipv4/ip_tunnel_core.c']
Warning: net/core/dev.c:708 No description found for return value of 'dev_get_iflink'
Warning: net/core/dev.c:726 No description found for return value of 'dev_fill_metadata_dst'
Warning: net/core/dev.c:879 No description found for return value of '__dev_get_by_name'
Warning: net/core/dev.c:900 No description found for return value of 'dev_get_by_name_rcu'
Warning: net/core/dev.c:936 No description found for return value of 'netdev_get_by_name'
Warning: net/core/dev.c:958 No description found for return value of '__dev_get_by_index'
Warning: net/core/dev.c:982 No description found for return value of 'dev_get_by_index_rcu'
Warning: net/core/dev.c:1021 No description found for return value of 'netdev_get_by_index'
Warning: net/core/dev.c:1041 No description found for return value of 'dev_get_by_napi_id'
Warning: net/core/dev.c:1192 No description found for return value of 'netdev_get_name'
Warning: net/core/dev.c:1234 No description found for return value of 'dev_getbyhwaddr_rcu'
Warning: net/core/dev.c:1323 No description found for return value of 'dev_valid_name'
Warning: net/core/dev.c:1356 No description found for return value of '__dev_alloc_name'
Warning: net/core/dev.c:1445 No description found for return value of 'dev_alloc_name'
Warning: net/core/dev.c:1566 No description found for return value of 'dev_get_alias'
Warning: net/core/dev.c:1965 No description found for return value of 'register_netdevice_notifier'
Warning: net/core/dev.c:2020 No description found for return value of 'unregister_netdevice_notifier'
Warning: net/core/dev.c:2096 No description found for return value of 'register_netdevice_notifier_net'
Warning: net/core/dev.c:2125 No description found for return value of 'unregister_netdevice_notifier_net'
Warning: net/core/dev.c:2233 No description found for return value of 'call_netdevice_notifiers_info'
Warning: net/core/dev.c:2266 No description found for return value of 'call_netdevice_notifiers_info_robust'
Warning: net/core/dev.c:2297 No description found for return value of 'call_netdevice_notifiers'
Warning: net/core/dev.c:2313 No description found for return value of 'call_netdevice_notifiers_mtu'
Warning: net/core/dev.c:2472 No description found for return value of 'dev_forward_skb'
Warning: net/core/dev.c:2531 No description found for return value of 'dev_nit_active_rcu'
Warning: net/core/dev.c:3240 No description found for return value of 'netif_set_real_num_rx_queues'
Warning: net/core/dev.c:3271 No description found for return value of 'netif_set_real_num_queues'
Warning: net/core/dev.c:3359 No description found for return value of 'netif_get_num_default_rss_queues'
Warning: net/core/dev.c:4334 No description found for return value of 'dev_loopback_xmit'
Warning: net/core/dev.c:5221 No description found for return value of 'rps_may_expire_flow'
Warning: net/core/dev.c:5729 No description found for return value of '__netif_rx'
Warning: net/core/dev.c:5761 No description found for return value of 'netif_rx'
Warning: net/core/dev.c:5878 No description found for return value of 'netdev_is_rx_handler_busy'
Warning: net/core/dev.c:5901 No description found for return value of 'netdev_rx_handler_register'
Warning: net/core/dev.c:6226 No description found for return value of 'netif_receive_skb_core'
Warning: net/core/dev.c:6458 No description found for return value of 'netif_receive_skb'
Warning: net/core/dev.c:6733 No description found for return value of 'napi_schedule_prep'
Warning: net/core/dev.c:8033 No description found for return value of 'netdev_has_upper_dev'
Warning: net/core/dev.c:8057 No description found for return value of 'netdev_has_upper_dev_all_rcu'
Warning: net/core/dev.c:8075 No description found for return value of 'netdev_has_any_upper_dev'
Warning: net/core/dev.c:8090 No description found for return value of 'netdev_master_upper_dev_get'
Warning: net/core/dev.c:8130 No description found for return value of 'netdev_has_any_lower_dev'
Warning: net/core/dev.c:8156 No description found for return value of 'netdev_upper_get_next_dev_rcu'
Warning: net/core/dev.c:8330 No description found for return value of 'netdev_lower_get_next_private'
Warning: net/core/dev.c:8356 No description found for return value of 'netdev_lower_get_next_private_rcu'
Warning: net/core/dev.c:8384 No description found for return value of 'netdev_lower_get_next'
Warning: net/core/dev.c:8672 No description found for return value of 'netdev_lower_get_first_private_rcu'
Warning: net/core/dev.c:8691 No description found for return value of 'netdev_master_upper_dev_get_rcu'
Warning: net/core/dev.c:8972 No description found for return value of 'netdev_upper_dev_link'
Warning: net/core/dev.c:9001 No description found for return value of 'netdev_master_upper_dev_link'
Warning: net/core/dev.c:9429 No description found for return value of 'netdev_get_xmit_slave'
Warning: net/core/dev.c:9458 No description found for return value of 'netdev_sk_get_lowest_dev'
Warning: net/core/dev.c:9744 No description found for return value of 'netif_get_flags'
Warning: net/core/dev.c:10103 No description found for return value of 'dev_get_phys_port_id'
Warning: net/core/dev.c:10121 No description found for return value of 'dev_get_phys_port_name'
Warning: net/core/dev.c:10183 No description found for return value of 'netdev_port_same_parent_id'
Warning: net/core/dev.c:10770 No description found for return value of 'dev_change_xdp_fd'
Warning: net/core/dev.c:11353 No description found for return value of 'register_netdevice'
Warning: net/core/dev.c:11575 No description found for return value of 'register_netdev'
Warning: net/core/dev.c:11621 No description found for return value of 'netdev_wait_allrefs_any'
Warning: net/core/dev.c:11892 No description found for return value of 'dev_get_stats'
Warning: net/core/dev.c:12053 No description found for return value of 'alloc_netdev_mqs'
Warning: net/core/dev.c:12805 No description found for return value of 'netdev_increment_features'
Warning: net/core/dev.c:12957 No description found for return value of 'netdev_drivername'
Warning: net/core/dev.c:708 No description found for return value of 'dev_get_iflink'
Warning: net/core/dev.c:726 No description found for return value of 'dev_fill_metadata_dst'
Warning: net/core/dev.c:879 No description found for return value of '__dev_get_by_name'
Warning: net/core/dev.c:900 No description found for return value of 'dev_get_by_name_rcu'
Warning: net/core/dev.c:936 No description found for return value of 'netdev_get_by_name'
Warning: net/core/dev.c:958 No description found for return value of '__dev_get_by_index'
Warning: net/core/dev.c:982 No description found for return value of 'dev_get_by_index_rcu'
Warning: net/core/dev.c:1021 No description found for return value of 'netdev_get_by_index'
Warning: net/core/dev.c:1041 No description found for return value of 'dev_get_by_napi_id'
Warning: net/core/dev.c:1192 No description found for return value of 'netdev_get_name'
Warning: net/core/dev.c:1234 No description found for return value of 'dev_getbyhwaddr_rcu'
Warning: net/core/dev.c:1323 No description found for return value of 'dev_valid_name'
Warning: net/core/dev.c:1356 No description found for return value of '__dev_alloc_name'
Warning: net/core/dev.c:1445 No description found for return value of 'dev_alloc_name'
Warning: net/core/dev.c:1566 No description found for return value of 'dev_get_alias'
Warning: net/core/dev.c:1965 No description found for return value of 'register_netdevice_notifier'
Warning: net/core/dev.c:2020 No description found for return value of 'unregister_netdevice_notifier'
Warning: net/core/dev.c:2096 No description found for return value of 'register_netdevice_notifier_net'
Warning: net/core/dev.c:2125 No description found for return value of 'unregister_netdevice_notifier_net'
Warning: net/core/dev.c:2233 No description found for return value of 'call_netdevice_notifiers_info'
Warning: net/core/dev.c:2266 No description found for return value of 'call_netdevice_notifiers_info_robust'
Warning: net/core/dev.c:2297 No description found for return value of 'call_netdevice_notifiers'
Warning: net/core/dev.c:2313 No description found for return value of 'call_netdevice_notifiers_mtu'
Warning: net/core/dev.c:2472 No description found for return value of 'dev_forward_skb'
Warning: net/core/dev.c:2531 No description found for return value of 'dev_nit_active_rcu'
Warning: net/core/dev.c:3240 No description found for return value of 'netif_set_real_num_rx_queues'
Warning: net/core/dev.c:3271 No description found for return value of 'netif_set_real_num_queues'
Warning: net/core/dev.c:3359 No description found for return value of 'netif_get_num_default_rss_queues'
Warning: net/core/dev.c:4334 No description found for return value of 'dev_loopback_xmit'
Warning: net/core/dev.c:5221 No description found for return value of 'rps_may_expire_flow'
Warning: net/core/dev.c:5729 No description found for return value of '__netif_rx'
Warning: net/core/dev.c:5761 No description found for return value of 'netif_rx'
Warning: net/core/dev.c:5878 No description found for return value of 'netdev_is_rx_handler_busy'
Warning: net/core/dev.c:5901 No description found for return value of 'netdev_rx_handler_register'
Warning: net/core/dev.c:6226 No description found for return value of 'netif_receive_skb_core'
Warning: net/core/dev.c:6458 No description found for return value of 'netif_receive_skb'
Warning: net/core/dev.c:6733 No description found for return value of 'napi_schedule_prep'
Warning: net/core/dev.c:8033 No description found for return value of 'netdev_has_upper_dev'
Warning: net/core/dev.c:8057 No description found for return value of 'netdev_has_upper_dev_all_rcu'
Warning: net/core/dev.c:8075 No description found for return value of 'netdev_has_any_upper_dev'
Warning: net/core/dev.c:8090 No description found for return value of 'netdev_master_upper_dev_get'
Warning: net/core/dev.c:8130 No description found for return value of 'netdev_has_any_lower_dev'
Warning: net/core/dev.c:8156 No description found for return value of 'netdev_upper_get_next_dev_rcu'
Warning: net/core/dev.c:8330 No description found for return value of 'netdev_lower_get_next_private'
Warning: net/core/dev.c:8356 No description found for return value of 'netdev_lower_get_next_private_rcu'
Warning: net/core/dev.c:8384 No description found for return value of 'netdev_lower_get_next'
Warning: net/core/dev.c:8672 No description found for return value of 'netdev_lower_get_first_private_rcu'
Warning: net/core/dev.c:8691 No description found for return value of 'netdev_master_upper_dev_get_rcu'
Warning: net/core/dev.c:8972 No description found for return value of 'netdev_upper_dev_link'
Warning: net/core/dev.c:9001 No description found for return value of 'netdev_master_upper_dev_link'
Warning: net/core/dev.c:9429 No description found for return value of 'netdev_get_xmit_slave'
Warning: net/core/dev.c:9458 No description found for return value of 'netdev_sk_get_lowest_dev'
Warning: net/core/dev.c:9744 No description found for return value of 'netif_get_flags'
Warning: net/core/dev.c:10103 No description found for return value of 'dev_get_phys_port_id'
Warning: net/core/dev.c:10121 No description found for return value of 'dev_get_phys_port_name'
Warning: net/core/dev.c:10183 No description found for return value of 'netdev_port_same_parent_id'
Warning: net/core/dev.c:10770 No description found for return value of 'dev_change_xdp_fd'
Warning: net/core/dev.c:11353 No description found for return value of 'register_netdevice'
Warning: net/core/dev.c:11575 No description found for return value of 'register_netdev'
Warning: net/core/dev.c:11621 No description found for return value of 'netdev_wait_allrefs_any'
Warning: net/core/dev.c:11892 No description found for return value of 'dev_get_stats'
Warning: net/core/dev.c:12053 No description found for return value of 'alloc_netdev_mqs'
Warning: net/core/dev.c:12805 No description found for return value of 'netdev_increment_features'
Warning: net/core/dev.c:12957 No description found for return value of 'netdev_drivername'

Current warnings:
files: ['net/core/dev.c', 'net/ipv4/ip_tunnel_core.c']
Warning: net/core/dev.c:708 No description found for return value of 'dev_get_iflink'
Warning: net/core/dev.c:726 No description found for return value of 'dev_fill_metadata_dst'
Warning: net/core/dev.c:879 No description found for return value of '__dev_get_by_name'
Warning: net/core/dev.c:900 No description found for return value of 'dev_get_by_name_rcu'
Warning: net/core/dev.c:936 No description found for return value of 'netdev_get_by_name'
Warning: net/core/dev.c:958 No description found for return value of '__dev_get_by_index'
Warning: net/core/dev.c:982 No description found for return value of 'dev_get_by_index_rcu'
Warning: net/core/dev.c:1021 No description found for return value of 'netdev_get_by_index'
Warning: net/core/dev.c:1041 No description found for return value of 'dev_get_by_napi_id'
Warning: net/core/dev.c:1192 No description found for return value of 'netdev_get_name'
Warning: net/core/dev.c:1234 No description found for return value of 'dev_getbyhwaddr_rcu'
Warning: net/core/dev.c:1323 No description found for return value of 'dev_valid_name'
Warning: net/core/dev.c:1356 No description found for return value of '__dev_alloc_name'
Warning: net/core/dev.c:1445 No description found for return value of 'dev_alloc_name'
Warning: net/core/dev.c:1566 No description found for return value of 'dev_get_alias'
Warning: net/core/dev.c:1965 No description found for return value of 'register_netdevice_notifier'
Warning: net/core/dev.c:2020 No description found for return value of 'unregister_netdevice_notifier'
Warning: net/core/dev.c:2096 No description found for return value of 'register_netdevice_notifier_net'
Warning: net/core/dev.c:2125 No description found for return value of 'unregister_netdevice_notifier_net'
Warning: net/core/dev.c:2233 No description found for return value of 'call_netdevice_notifiers_info'
Warning: net/core/dev.c:2266 No description found for return value of 'call_netdevice_notifiers_info_robust'
Warning: net/core/dev.c:2297 No description found for return value of 'call_netdevice_notifiers'
Warning: net/core/dev.c:2313 No description found for return value of 'call_netdevice_notifiers_mtu'
Warning: net/core/dev.c:2472 No description found for return value of 'dev_forward_skb'
Warning: net/core/dev.c:2531 No description found for return value of 'dev_nit_active_rcu'
Warning: net/core/dev.c:3240 No description found for return value of 'netif_set_real_num_rx_queues'
Warning: net/core/dev.c:3271 No description found for return value of 'netif_set_real_num_queues'
Warning: net/core/dev.c:3359 No description found for return value of 'netif_get_num_default_rss_queues'
Warning: net/core/dev.c:4334 No description found for return value of 'dev_loopback_xmit'
Warning: net/core/dev.c:5222 No description found for return value of 'rps_may_expire_flow'
Warning: net/core/dev.c:5730 No description found for return value of '__netif_rx'
Warning: net/core/dev.c:5762 No description found for return value of 'netif_rx'
Warning: net/core/dev.c:5879 No description found for return value of 'netdev_is_rx_handler_busy'
Warning: net/core/dev.c:5902 No description found for return value of 'netdev_rx_handler_register'
Warning: net/core/dev.c:6227 No description found for return value of 'netif_receive_skb_core'
Warning: net/core/dev.c:6459 No description found for return value of 'netif_receive_skb'
Warning: net/core/dev.c:6734 No description found for return value of 'napi_schedule_prep'
Warning: net/core/dev.c:8034 No description found for return value of 'netdev_has_upper_dev'
Warning: net/core/dev.c:8058 No description found for return value of 'netdev_has_upper_dev_all_rcu'
Warning: net/core/dev.c:8076 No description found for return value of 'netdev_has_any_upper_dev'
Warning: net/core/dev.c:8091 No description found for return value of 'netdev_master_upper_dev_get'
Warning: net/core/dev.c:8131 No description found for return value of 'netdev_has_any_lower_dev'
Warning: net/core/dev.c:8157 No description found for return value of 'netdev_upper_get_next_dev_rcu'
Warning: net/core/dev.c:8331 No description found for return value of 'netdev_lower_get_next_private'
Warning: net/core/dev.c:8357 No description found for return value of 'netdev_lower_get_next_private_rcu'
Warning: net/core/dev.c:8385 No description found for return value of 'netdev_lower_get_next'
Warning: net/core/dev.c:8673 No description found for return value of 'netdev_lower_get_first_private_rcu'
Warning: net/core/dev.c:8692 No description found for return value of 'netdev_master_upper_dev_get_rcu'
Warning: net/core/dev.c:8973 No description found for return value of 'netdev_upper_dev_link'
Warning: net/core/dev.c:9002 No description found for return value of 'netdev_master_upper_dev_link'
Warning: net/core/dev.c:9430 No description found for return value of 'netdev_get_xmit_slave'
Warning: net/core/dev.c:9459 No description found for return value of 'netdev_sk_get_lowest_dev'
Warning: net/core/dev.c:9745 No description found for return value of 'netif_get_flags'
Warning: net/core/dev.c:10104 No description found for return value of 'dev_get_phys_port_id'
Warning: net/core/dev.c:10122 No description found for return value of 'dev_get_phys_port_name'
Warning: net/core/dev.c:10184 No description found for return value of 'netdev_port_same_parent_id'
Warning: net/core/dev.c:10771 No description found for return value of 'dev_change_xdp_fd'
Warning: net/core/dev.c:11354 No description found for return value of 'register_netdevice'
Warning: net/core/dev.c:11576 No description found for return value of 'register_netdev'
Warning: net/core/dev.c:11622 No description found for return value of 'netdev_wait_allrefs_any'
Warning: net/core/dev.c:11893 No description found for return value of 'dev_get_stats'
Warning: net/core/dev.c:12054 No description found for return value of 'alloc_netdev_mqs'
Warning: net/core/dev.c:12806 No description found for return value of 'netdev_increment_features'
Warning: net/core/dev.c:12958 No description found for return value of 'netdev_drivername'
Warning: net/core/dev.c:708 No description found for return value of 'dev_get_iflink'
Warning: net/core/dev.c:726 No description found for return value of 'dev_fill_metadata_dst'
Warning: net/core/dev.c:879 No description found for return value of '__dev_get_by_name'
Warning: net/core/dev.c:900 No description found for return value of 'dev_get_by_name_rcu'
Warning: net/core/dev.c:936 No description found for return value of 'netdev_get_by_name'
Warning: net/core/dev.c:958 No description found for return value of '__dev_get_by_index'
Warning: net/core/dev.c:982 No description found for return value of 'dev_get_by_index_rcu'
Warning: net/core/dev.c:1021 No description found for return value of 'netdev_get_by_index'
Warning: net/core/dev.c:1041 No description found for return value of 'dev_get_by_napi_id'
Warning: net/core/dev.c:1192 No description found for return value of 'netdev_get_name'
Warning: net/core/dev.c:1234 No description found for return value of 'dev_getbyhwaddr_rcu'
Warning: net/core/dev.c:1323 No description found for return value of 'dev_valid_name'
Warning: net/core/dev.c:1356 No description found for return value of '__dev_alloc_name'
Warning: net/core/dev.c:1445 No description found for return value of 'dev_alloc_name'
Warning: net/core/dev.c:1566 No description found for return value of 'dev_get_alias'
Warning: net/core/dev.c:1965 No description found for return value of 'register_netdevice_notifier'
Warning: net/core/dev.c:2020 No description found for return value of 'unregister_netdevice_notifier'
Warning: net/core/dev.c:2096 No description found for return value of 'register_netdevice_notifier_net'
Warning: net/core/dev.c:2125 No description found for return value of 'unregister_netdevice_notifier_net'
Warning: net/core/dev.c:2233 No description found for return value of 'call_netdevice_notifiers_info'
Warning: net/core/dev.c:2266 No description found for return value of 'call_netdevice_notifiers_info_robust'
Warning: net/core/dev.c:2297 No description found for return value of 'call_netdevice_notifiers'
Warning: net/core/dev.c:2313 No description found for return value of 'call_netdevice_notifiers_mtu'
Warning: net/core/dev.c:2472 No description found for return value of 'dev_forward_skb'
Warning: net/core/dev.c:2531 No description found for return value of 'dev_nit_active_rcu'
Warning: net/core/dev.c:3240 No description found for return value of 'netif_set_real_num_rx_queues'
Warning: net/core/dev.c:3271 No description found for return value of 'netif_set_real_num_queues'
Warning: net/core/dev.c:3359 No description found for return value of 'netif_get_num_default_rss_queues'
Warning: net/core/dev.c:4334 No description found for return value of 'dev_loopback_xmit'
Warning: net/core/dev.c:5222 No description found for return value of 'rps_may_expire_flow'
Warning: net/core/dev.c:5730 No description found for return value of '__netif_rx'
Warning: net/core/dev.c:5762 No description found for return value of 'netif_rx'
Warning: net/core/dev.c:5879 No description found for return value of 'netdev_is_rx_handler_busy'
Warning: net/core/dev.c:5902 No description found for return value of 'netdev_rx_handler_register'
Warning: net/core/dev.c:6227 No description found for return value of 'netif_receive_skb_core'
Warning: net/core/dev.c:6459 No description found for return value of 'netif_receive_skb'
Warning: net/core/dev.c:6734 No description found for return value of 'napi_schedule_prep'
Warning: net/core/dev.c:8034 No description found for return value of 'netdev_has_upper_dev'
Warning: net/core/dev.c:8058 No description found for return value of 'netdev_has_upper_dev_all_rcu'
Warning: net/core/dev.c:8076 No description found for return value of 'netdev_has_any_upper_dev'
Warning: net/core/dev.c:8091 No description found for return value of 'netdev_master_upper_dev_get'
Warning: net/core/dev.c:8131 No description found for return value of 'netdev_has_any_lower_dev'
Warning: net/core/dev.c:8157 No description found for return value of 'netdev_upper_get_next_dev_rcu'
Warning: net/core/dev.c:8331 No description found for return value of 'netdev_lower_get_next_private'
Warning: net/core/dev.c:8357 No description found for return value of 'netdev_lower_get_next_private_rcu'
Warning: net/core/dev.c:8385 No description found for return value of 'netdev_lower_get_next'
Warning: net/core/dev.c:8673 No description found for return value of 'netdev_lower_get_first_private_rcu'
Warning: net/core/dev.c:8692 No description found for return value of 'netdev_master_upper_dev_get_rcu'
Warning: net/core/dev.c:8973 No description found for return value of 'netdev_upper_dev_link'
Warning: net/core/dev.c:9002 No description found for return value of 'netdev_master_upper_dev_link'
Warning: net/core/dev.c:9430 No description found for return value of 'netdev_get_xmit_slave'
Warning: net/core/dev.c:9459 No description found for return value of 'netdev_sk_get_lowest_dev'
Warning: net/core/dev.c:9745 No description found for return value of 'netif_get_flags'
Warning: net/core/dev.c:10104 No description found for return value of 'dev_get_phys_port_id'
Warning: net/core/dev.c:10122 No description found for return value of 'dev_get_phys_port_name'
Warning: net/core/dev.c:10184 No description found for return value of 'netdev_port_same_parent_id'
Warning: net/core/dev.c:10771 No description found for return value of 'dev_change_xdp_fd'
Warning: net/core/dev.c:11354 No description found for return value of 'register_netdevice'
Warning: net/core/dev.c:11576 No description found for return value of 'register_netdev'
Warning: net/core/dev.c:11622 No description found for return value of 'netdev_wait_allrefs_any'
Warning: net/core/dev.c:11893 No description found for return value of 'dev_get_stats'
Warning: net/core/dev.c:12054 No description found for return value of 'alloc_netdev_mqs'
Warning: net/core/dev.c:12806 No description found for return value of 'netdev_increment_features'
Warning: net/core/dev.c:12958 No description found for return value of 'netdev_drivername'

Warnings before: 128 after: 128