Warnings before patch:
files: ['include/net/ipv6.h', 'net/ipv6/exthdrs.c', 'net/ipv6/ip6_output.c', 'net/ipv6/ip6_tunnel.c']
Warning: net/ipv6/exthdrs.c:1263 No description found for return value of 'ipv6_renew_options'
Warning: net/ipv6/ip6_output.c:1247 No description found for return value of 'ip6_dst_lookup'
Warning: net/ipv6/ip6_output.c:1267 No description found for return value of 'ip6_dst_lookup_flow'
Warning: net/ipv6/ip6_output.c:1302 No description found for return value of 'ip6_sk_dst_lookup_flow'
Warning: net/ipv6/ip6_tunnel.c:1911 No description found for return value of 'ip6_tnl_dev_init_gen'
Warning: net/ipv6/ip6_tunnel.c:1953 No description found for return value of 'ip6_tnl_dev_init'
Warning: net/ipv6/exthdrs.c:1263 No description found for return value of 'ipv6_renew_options'
Warning: net/ipv6/ip6_output.c:1247 No description found for return value of 'ip6_dst_lookup'
Warning: net/ipv6/ip6_output.c:1267 No description found for return value of 'ip6_dst_lookup_flow'
Warning: net/ipv6/ip6_output.c:1302 No description found for return value of 'ip6_sk_dst_lookup_flow'
Warning: net/ipv6/ip6_tunnel.c:1911 No description found for return value of 'ip6_tnl_dev_init_gen'
Warning: net/ipv6/ip6_tunnel.c:1953 No description found for return value of 'ip6_tnl_dev_init'

Current warnings:
files: ['include/net/ipv6.h', 'net/ipv6/exthdrs.c', 'net/ipv6/ip6_output.c', 'net/ipv6/ip6_tunnel.c']
Warning: net/ipv6/exthdrs.c:1266 No description found for return value of 'ipv6_renew_options'
Warning: net/ipv6/ip6_output.c:1248 No description found for return value of 'ip6_dst_lookup'
Warning: net/ipv6/ip6_output.c:1268 No description found for return value of 'ip6_dst_lookup_flow'
Warning: net/ipv6/ip6_output.c:1303 No description found for return value of 'ip6_sk_dst_lookup_flow'
Warning: net/ipv6/ip6_tunnel.c:1911 No description found for return value of 'ip6_tnl_dev_init_gen'
Warning: net/ipv6/ip6_tunnel.c:1953 No description found for return value of 'ip6_tnl_dev_init'
Warning: net/ipv6/exthdrs.c:1266 No description found for return value of 'ipv6_renew_options'
Warning: net/ipv6/ip6_output.c:1248 No description found for return value of 'ip6_dst_lookup'
Warning: net/ipv6/ip6_output.c:1268 No description found for return value of 'ip6_dst_lookup_flow'
Warning: net/ipv6/ip6_output.c:1303 No description found for return value of 'ip6_sk_dst_lookup_flow'
Warning: net/ipv6/ip6_tunnel.c:1911 No description found for return value of 'ip6_tnl_dev_init_gen'
Warning: net/ipv6/ip6_tunnel.c:1953 No description found for return value of 'ip6_tnl_dev_init'

Warnings before: 12 after: 12