Warnings before patch:
files: ['Documentation/networking/net_cachelines/netns_ipv4_sysctl.rst', 'Documentation/networking/ip-sysctl.rst', 'net/ipv4/tcp_input.c', 'include/net/netns/ipv4.h', 'net/ipv4/tcp_ipv4.c', 'net/core/net_namespace.c', 'net/ipv4/sysctl_net_ipv4.c']
Warning: net/core/net_namespace.c:754 No description found for return value of 'get_net_ns'
Warning: net/core/net_namespace.c:1424 No description found for return value of 'register_pernet_subsys'
Warning: net/core/net_namespace.c:1470 No description found for return value of 'register_pernet_device'
Warning: net/ipv4/tcp_input.c:4990 No description found for return value of 'tcp_try_coalesce'

Current warnings:
files: ['Documentation/networking/net_cachelines/netns_ipv4_sysctl.rst', 'Documentation/networking/ip-sysctl.rst', 'net/ipv4/tcp_input.c', 'include/net/netns/ipv4.h', 'net/ipv4/tcp_ipv4.c', 'net/core/net_namespace.c', 'net/ipv4/sysctl_net_ipv4.c']
Warning: net/core/net_namespace.c:754 No description found for return value of 'get_net_ns'
Warning: net/core/net_namespace.c:1426 No description found for return value of 'register_pernet_subsys'
Warning: net/core/net_namespace.c:1472 No description found for return value of 'register_pernet_device'
Warning: net/ipv4/tcp_input.c:5000 No description found for return value of 'tcp_try_coalesce'

Warnings before: 4 after: 4